habanalabs: add status of reset after device release

The user might want to know the device is in reset after device release, which is not an erroneous event as a regular reset. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
author: Oded Gabbay <ogabbay@kernel.org> 2022-07-07 11:42:15 +0300
committer: Oded Gabbay <ogabbay@kernel.org> 2022-07-12 09:09:31 +0300
commit: e3b20f3ee452e3ce1077822b2558846eb4fe571f (patch)
tree: 1f6d1d1ddfca7307687c4f09ed5d06ffb7811466 /tools/perf/scripts/python/flamegraph.py
parent: bd4a338886a8cc5809f45d569df395acb846ce8e (diff)
0 files changed, 0 insertions, 0 deletions
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 39d950584c9f..2f92cd698bef 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -1,7 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig STAGING
 	bool "Staging drivers"
-	default n
-	---help---
+	help
 	  This option allows you to select a number of drivers that are
 	  not of the "normal" Linux kernel quality level.  These drivers
 	  are placed here in order to get a wider audience to make use of
@@ -16,100 +16,36 @@ menuconfig STAGING
 
 	  If you wish to work on these drivers, to help improve them, or
 	  to report problems you have with them, please see the
-	  driver_name.README file in the drivers/staging/ directory to
-	  see what needs to be worked on, and who to contact.
+	  drivers/staging/<driver_name>/TODO file to see what needs to be
+	  worked on, and who to contact.
 
 	  If in doubt, say N here.
 
 
 if STAGING
 
-source "drivers/staging/slicoss/Kconfig"
-
-source "drivers/staging/wlan-ng/Kconfig"
-
-source "drivers/staging/comedi/Kconfig"
-
-source "drivers/staging/olpc_dcon/Kconfig"
-
-source "drivers/staging/panel/Kconfig"
-
-source "drivers/staging/rtl8192u/Kconfig"
-
-source "drivers/staging/rtl8192e/Kconfig"
-
-source "drivers/staging/rtl8712/Kconfig"
-
-source "drivers/staging/rtl8188eu/Kconfig"
-
-source "drivers/staging/rtl8723au/Kconfig"
-
-source "drivers/staging/rts5208/Kconfig"
+source "drivers/staging/rtl8723bs/Kconfig"
 
 source "drivers/staging/octeon/Kconfig"
 
-source "drivers/staging/octeon-usb/Kconfig"
-
-source "drivers/staging/vt6655/Kconfig"
-
-source "drivers/staging/vt6656/Kconfig"
-
 source "drivers/staging/iio/Kconfig"
 
 source "drivers/staging/sm750fb/Kconfig"
 
-source "drivers/staging/xgifb/Kconfig"
-
-source "drivers/staging/emxx_udc/Kconfig"
-
-source "drivers/staging/ft1000/Kconfig"
-
-source "drivers/staging/speakup/Kconfig"
-
-source "drivers/staging/ste_rmi4/Kconfig"
-
 source "drivers/staging/nvec/Kconfig"
 
 source "drivers/staging/media/Kconfig"
 
-source "drivers/staging/rdma/Kconfig"
-
-source "drivers/staging/android/Kconfig"
-
-source "drivers/staging/board/Kconfig"
-
-source "drivers/staging/gdm72xx/Kconfig"
-
-source "drivers/staging/gdm724x/Kconfig"
-
-source "drivers/staging/fwserial/Kconfig"
-
-source "drivers/staging/goldfish/Kconfig"
-
-source "drivers/staging/netlogic/Kconfig"
-
-source "drivers/staging/mt29f_spinand/Kconfig"
-
-source "drivers/staging/lustre/Kconfig"
-
-source "drivers/staging/dgnc/Kconfig"
-
-source "drivers/staging/dgap/Kconfig"
-
-source "drivers/staging/gs_fpgaboot/Kconfig"
-
-source "drivers/staging/skein/Kconfig"
-
-source "drivers/staging/unisys/Kconfig"
+source "drivers/staging/fbtft/Kconfig"
 
-source "drivers/staging/clocking-wizard/Kconfig"
+source "drivers/staging/most/Kconfig"
 
-source "drivers/staging/fbtft/Kconfig"
+source "drivers/staging/greybus/Kconfig"
 
-source "drivers/staging/fsl-mc/Kconfig"
+source "drivers/staging/vc04_services/Kconfig"
 
-source "drivers/staging/wilc1000/Kconfig"
+source "drivers/staging/axis-fifo/Kconfig"
 
-source "drivers/staging/most/Kconfig"
+source "drivers/staging/vme_user/Kconfig"
 
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index e4f33d91872b..f5b8876aa536 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -1,50 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for staging directory
 
-# fix for build system bug...
-obj-$(CONFIG_STAGING)		+= staging.o
-
 obj-y				+= media/
-obj-$(CONFIG_SLICOSS)		+= slicoss/
-obj-$(CONFIG_PRISM2_USB)	+= wlan-ng/
-obj-$(CONFIG_COMEDI)		+= comedi/
-obj-$(CONFIG_FB_OLPC_DCON)	+= olpc_dcon/
-obj-$(CONFIG_PANEL)		+= panel/
-obj-$(CONFIG_RTL8192U)		+= rtl8192u/
-obj-$(CONFIG_RTL8192E)		+= rtl8192e/
-obj-$(CONFIG_R8712U)		+= rtl8712/
-obj-$(CONFIG_R8188EU)		+= rtl8188eu/
-obj-$(CONFIG_R8723AU)		+= rtl8723au/
-obj-$(CONFIG_RTS5208)		+= rts5208/
-obj-$(CONFIG_NETLOGIC_XLR_NET)	+= netlogic/
+obj-$(CONFIG_RTL8723BS)		+= rtl8723bs/
 obj-$(CONFIG_OCTEON_ETHERNET)	+= octeon/
-obj-$(CONFIG_OCTEON_USB)	+= octeon-usb/
-obj-$(CONFIG_VT6655)		+= vt6655/
-obj-$(CONFIG_VT6656)		+= vt6656/
-obj-$(CONFIG_VME_BUS)		+= vme/
+obj-$(CONFIG_VME_BUS)		+= vme_user/
 obj-$(CONFIG_IIO)		+= iio/
 obj-$(CONFIG_FB_SM750)		+= sm750fb/
-obj-$(CONFIG_FB_XGI)		+= xgifb/
-obj-$(CONFIG_USB_EMXX)		+= emxx_udc/
-obj-$(CONFIG_FT1000)		+= ft1000/
-obj-$(CONFIG_SPEAKUP)		+= speakup/
-obj-$(CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4)	+= ste_rmi4/
 obj-$(CONFIG_MFD_NVEC)		+= nvec/
-obj-$(CONFIG_STAGING_RDMA)	+= rdma/
-obj-$(CONFIG_ANDROID)		+= android/
-obj-$(CONFIG_STAGING_BOARD)	+= board/
-obj-$(CONFIG_WIMAX_GDM72XX)	+= gdm72xx/
-obj-$(CONFIG_LTE_GDM724X)	+= gdm724x/
-obj-$(CONFIG_FIREWIRE_SERIAL)	+= fwserial/
-obj-$(CONFIG_GOLDFISH)		+= goldfish/
-obj-$(CONFIG_LUSTRE_FS)		+= lustre/
-obj-$(CONFIG_DGNC)			+= dgnc/
-obj-$(CONFIG_DGAP)			+= dgap/
-obj-$(CONFIG_MTD_SPINAND_MT29F)	+= mt29f_spinand/
-obj-$(CONFIG_GS_FPGABOOT)	+= gs_fpgaboot/
-obj-$(CONFIG_CRYPTO_SKEIN)	+= skein/
-obj-$(CONFIG_UNISYSSPAR)	+= unisys/
-obj-$(CONFIG_COMMON_CLK_XLNX_CLKWZRD)	+= clocking-wizard/
 obj-$(CONFIG_FB_TFT)		+= fbtft/
-obj-$(CONFIG_FSL_MC_BUS)	+= fsl-mc/
-obj-$(CONFIG_WILC1000)		+= wilc1000/
 obj-$(CONFIG_MOST)		+= most/
+obj-$(CONFIG_GREYBUS)		+= greybus/
+obj-$(CONFIG_BCM2835_VCHIQ)	+= vc04_services/
+obj-$(CONFIG_XIL_AXIS_FIFO)	+= axis-fifo/
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
deleted file mode 100644
index 68307121c9c1..000000000000
--- a/drivers/staging/android/Kconfig
+++ /dev/null
@@ -1,73 +0,0 @@
-menu "Android"
-
-if ANDROID
-
-config ASHMEM
-	bool "Enable the Anonymous Shared Memory Subsystem"
-	default n
-	depends on SHMEM
-	---help---
-	  The ashmem subsystem is a new shared memory allocator, similar to
-	  POSIX SHM but with different behavior and sporting a simpler
-	  file-based API.
-
-	  It is, in theory, a good memory allocator for low-memory devices,
-	  because it can discard shared memory units when under memory pressure.
-
-config ANDROID_TIMED_OUTPUT
-	bool "Timed output class driver"
-	default y
-
-config ANDROID_TIMED_GPIO
-	tristate "Android timed gpio driver"
-	depends on GPIOLIB || COMPILE_TEST
-	depends on ANDROID_TIMED_OUTPUT
-	default n
-        ---help---
-	  Unlike generic gpio is to allow programs to access and manipulate gpio
-	  registers from user space, timed output/gpio is a system to allow changing
-	  a gpio pin and restore it automatically after a specified timeout.
-
-config ANDROID_LOW_MEMORY_KILLER
-	bool "Android Low Memory Killer"
-	---help---
-	  Registers processes to be killed when low memory conditions, this is useful
-	  as there is no particular swap space on android.
-
-	  The registered process will kills according to the priorities in android init
-	  scripts (/init.rc), and it defines priority values with minimum free memory size
-	  for each priority.
-
-config SYNC
-	bool "Synchronization framework"
-	default n
-	select ANON_INODES
-	select DMA_SHARED_BUFFER
-	---help---
-	  This option enables the framework for synchronization between multiple
-	  drivers.  Sync implementations can take advantage of hardware
-	  synchronization built into devices like GPUs.
-
-config SW_SYNC
-	bool "Software synchronization objects"
-	default n
-	depends on SYNC
-	---help---
-	  A sync object driver that uses a 32bit counter to coordinate
-	  syncrhronization.  Useful when there is no hardware primitive backing
-	  the synchronization.
-
-config SW_SYNC_USER
-	bool "Userspace API for SW_SYNC"
-	default n
-	depends on SW_SYNC
-	---help---
-	  Provides a user space API to the sw sync object.
-	  *WARNING* improper use of this can result in deadlocking kernel
-	  drivers from userspace.
-
-source "drivers/staging/android/ion/Kconfig"
-
-endif # if ANDROID
-
-endmenu
diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile
deleted file mode 100644
index c7b6c99cc5ce..000000000000
--- a/drivers/staging/android/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-ccflags-y += -I$(src)			# needed for trace events
-
-obj-y					+= ion/
-
-obj-$(CONFIG_ASHMEM)			+= ashmem.o
-obj-$(CONFIG_ANDROID_TIMED_OUTPUT)	+= timed_output.o
-obj-$(CONFIG_ANDROID_TIMED_GPIO)	+= timed_gpio.o
-obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER)	+= lowmemorykiller.o
-obj-$(CONFIG_SYNC)			+= sync.o sync_debug.o
-obj-$(CONFIG_SW_SYNC)			+= sw_sync.o
diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO
deleted file mode 100644
index 20288fc53946..000000000000
--- a/drivers/staging/android/TODO
+++ /dev/null
@@ -1,9 +0,0 @@
-TODO:
-	- checkpatch.pl cleanups
-	- sparse fixes
-	- rename files to be not so "generic"
-	- add proper arch dependencies as needed
-	- audit userspace interfaces to make sure they are sane
-
-Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc:
-Arve Hjønnevåg <arve@android.com> and Riley Andrews <riandrews@android.com>
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
deleted file mode 100644
index 60200a3da821..000000000000
--- a/drivers/staging/android/ashmem.c
+++ /dev/null
@@ -1,878 +0,0 @@
-/* mm/ashmem.c
- *
- * Anonymous Shared Memory Subsystem, ashmem
- *
- * Copyright (C) 2008 Google, Inc.
- *
- * Robert Love <rlove@google.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) "ashmem: " fmt
-
-#include <linux/module.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/falloc.h>
-#include <linux/miscdevice.h>
-#include <linux/security.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/uaccess.h>
-#include <linux/personality.h>
-#include <linux/bitops.h>
-#include <linux/mutex.h>
-#include <linux/shmem_fs.h>
-#include "ashmem.h"
-
-#define ASHMEM_NAME_PREFIX "dev/ashmem/"
-#define ASHMEM_NAME_PREFIX_LEN (sizeof(ASHMEM_NAME_PREFIX) - 1)
-#define ASHMEM_FULL_NAME_LEN (ASHMEM_NAME_LEN + ASHMEM_NAME_PREFIX_LEN)
-
-/**
- * struct ashmem_area - The anonymous shared memory area
- * @name:		The optional name in /proc/pid/maps
- * @unpinned_list:	The list of all ashmem areas
- * @file:		The shmem-based backing file
- * @size:		The size of the mapping, in bytes
- * @prot_masks:		The allowed protection bits, as vm_flags
- *
- * The lifecycle of this structure is from our parent file's open() until
- * its release(). It is also protected by 'ashmem_mutex'
- *
- * Warning: Mappings do NOT pin this structure; It dies on close()
- */
-struct ashmem_area {
-	char name[ASHMEM_FULL_NAME_LEN];
-	struct list_head unpinned_list;
-	struct file *file;
-	size_t size;
-	unsigned long prot_mask;
-};
-
-/**
- * struct ashmem_range - A range of unpinned/evictable pages
- * @lru:	         The entry in the LRU list
- * @unpinned:	         The entry in its area's unpinned list
- * @asma:	         The associated anonymous shared memory area.
- * @pgstart:	         The starting page (inclusive)
- * @pgend:	         The ending page (inclusive)
- * @purged:	         The purge status (ASHMEM_NOT or ASHMEM_WAS_PURGED)
- *
- * The lifecycle of this structure is from unpin to pin.
- * It is protected by 'ashmem_mutex'
- */
-struct ashmem_range {
-	struct list_head lru;
-	struct list_head unpinned;
-	struct ashmem_area *asma;
-	size_t pgstart;
-	size_t pgend;
-	unsigned int purged;
-};
-
-/* LRU list of unpinned pages, protected by ashmem_mutex */
-static LIST_HEAD(ashmem_lru_list);
-
-/**
- * long lru_count - The count of pages on our LRU list.
- *
- * This is protected by ashmem_mutex.
- */
-static unsigned long lru_count;
-
-/**
- * ashmem_mutex - protects the list of and each individual ashmem_area
- *
- * Lock Ordering: ashmex_mutex -> i_mutex -> i_alloc_sem
- */
-static DEFINE_MUTEX(ashmem_mutex);
-
-static struct kmem_cache *ashmem_area_cachep __read_mostly;
-static struct kmem_cache *ashmem_range_cachep __read_mostly;
-
-#define range_size(range) \
-	((range)->pgend - (range)->pgstart + 1)
-
-#define range_on_lru(range) \
-	((range)->purged == ASHMEM_NOT_PURGED)
-
-#define page_range_subsumes_range(range, start, end) \
-	(((range)->pgstart >= (start)) && ((range)->pgend <= (end)))
-
-#define page_range_subsumed_by_range(range, start, end) \
-	(((range)->pgstart <= (start)) && ((range)->pgend >= (end)))
-
-#define page_in_range(range, page) \
-	(((range)->pgstart <= (page)) && ((range)->pgend >= (page)))
-
-#define page_range_in_range(range, start, end) \
-	(page_in_range(range, start) || page_in_range(range, end) || \
-		page_range_subsumes_range(range, start, end))
-
-#define range_before_page(range, page) \
-	((range)->pgend < (page))
-
-#define PROT_MASK		(PROT_EXEC | PROT_READ | PROT_WRITE)
-
-/**
- * lru_add() - Adds a range of memory to the LRU list
- * @range:     The memory range being added.
- *
- * The range is first added to the end (tail) of the LRU list.
- * After this, the size of the range is added to @lru_count
- */
-static inline void lru_add(struct ashmem_range *range)
-{
-	list_add_tail(&range->lru, &ashmem_lru_list);
-	lru_count += range_size(range);
-}
-
-/**
- * lru_del() - Removes a range of memory from the LRU list
- * @range:     The memory range being removed
- *
- * The range is first deleted from the LRU list.
- * After this, the size of the range is removed from @lru_count
- */
-static inline void lru_del(struct ashmem_range *range)
-{
-	list_del(&range->lru);
-	lru_count -= range_size(range);
-}
-
-/**
- * range_alloc() - Allocates and initializes a new ashmem_range structure
- * @asma:	   The associated ashmem_area
- * @prev_range:	   The previous ashmem_range in the sorted asma->unpinned list
- * @purged:	   Initial purge status (ASMEM_NOT_PURGED or ASHMEM_WAS_PURGED)
- * @start:	   The starting page (inclusive)
- * @end:	   The ending page (inclusive)
- *
- * This function is protected by ashmem_mutex.
- *
- * Return: 0 if successful, or -ENOMEM if there is an error
- */
-static int range_alloc(struct ashmem_area *asma,
-		       struct ashmem_range *prev_range, unsigned int purged,
-		       size_t start, size_t end)
-{
-	struct ashmem_range *range;
-
-	range = kmem_cache_zalloc(ashmem_range_cachep, GFP_KERNEL);
-	if (unlikely(!range))
-		return -ENOMEM;
-
-	range->asma = asma;
-	range->pgstart = start;
-	range->pgend = end;
-	range->purged = purged;
-
-	list_add_tail(&range->unpinned, &prev_range->unpinned);
-
-	if (range_on_lru(range))
-		lru_add(range);
-
-	return 0;
-}
-
-/**
- * range_del() - Deletes and dealloctes an ashmem_range structure
- * @range:	 The associated ashmem_range that has previously been allocated
- */
-static void range_del(struct ashmem_range *range)
-{
-	list_del(&range->unpinned);
-	if (range_on_lru(range))
-		lru_del(range);
-	kmem_cache_free(ashmem_range_cachep, range);
-}
-
-/**
- * range_shrink() - Shrinks an ashmem_range
- * @range:	    The associated ashmem_range being shrunk
- * @start:	    The starting byte of the new range
- * @end:	    The ending byte of the new range
- *
- * This does not modify the data inside the existing range in any way - It
- * simply shrinks the boundaries of the range.
- *
- * Theoretically, with a little tweaking, this could eventually be changed
- * to range_resize, and expand the lru_count if the new range is larger.
- */
-static inline void range_shrink(struct ashmem_range *range,
-				size_t start, size_t end)
-{
-	size_t pre = range_size(range);
-
-	range->pgstart = start;
-	range->pgend = end;
-
-	if (range_on_lru(range))
-		lru_count -= pre - range_size(range);
-}
-
-/**
- * ashmem_open() - Opens an Anonymous Shared Memory structure
- * @inode:	   The backing file's index node(?)
- * @file:	   The backing file
- *
- * Please note that the ashmem_area is not returned by this function - It is
- * instead written to "file->private_data".
- *
- * Return: 0 if successful, or another code if unsuccessful.
- */
-static int ashmem_open(struct inode *inode, struct file *file)
-{
-	struct ashmem_area *asma;
-	int ret;
-
-	ret = generic_file_open(inode, file);
-	if (unlikely(ret))
-		return ret;
-
-	asma = kmem_cache_zalloc(ashmem_area_cachep, GFP_KERNEL);
-	if (unlikely(!asma))
-		return -ENOMEM;
-
-	INIT_LIST_HEAD(&asma->unpinned_list);
-	memcpy(asma->name, ASHMEM_NAME_PREFIX, ASHMEM_NAME_PREFIX_LEN);
-	asma->prot_mask = PROT_MASK;
-	file->private_data = asma;
-
-	return 0;
-}
-
-/**
- * ashmem_release() - Releases an Anonymous Shared Memory structure
- * @ignored:	      The backing file's Index Node(?) - It is ignored here.
- * @file:	      The backing file
- *
- * Return: 0 if successful. If it is anything else, go have a coffee and
- * try again.
- */
-static int ashmem_release(struct inode *ignored, struct file *file)
-{
-	struct ashmem_area *asma = file->private_data;
-	struct ashmem_range *range, *next;
-
-	mutex_lock(&ashmem_mutex);
-	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned)
-		range_del(range);
-	mutex_unlock(&ashmem_mutex);
-
-	if (asma->file)
-		fput(asma->file);
-	kmem_cache_free(ashmem_area_cachep, asma);
-
-	return 0;
-}
-
-/**
- * ashmem_read() - Reads a set of bytes from an Ashmem-enabled file
- * @file:	   The associated backing file.
- * @buf:	   The buffer of data being written to
- * @len:	   The number of bytes being read
- * @pos:	   The position of the first byte to read.
- *
- * Return: 0 if successful, or another return code if not.
- */
-static ssize_t ashmem_read(struct file *file, char __user *buf,
-			   size_t len, loff_t *pos)
-{
-	struct ashmem_area *asma = file->private_data;
-	int ret = 0;
-
-	mutex_lock(&ashmem_mutex);
-
-	/* If size is not set, or set to 0, always return EOF. */
-	if (asma->size == 0)
-		goto out_unlock;
-
-	if (!asma->file) {
-		ret = -EBADF;
-		goto out_unlock;
-	}
-
-	mutex_unlock(&ashmem_mutex);
-
-	/*
-	 * asma and asma->file are used outside the lock here.  We assume
-	 * once asma->file is set it will never be changed, and will not
-	 * be destroyed until all references to the file are dropped and
-	 * ashmem_release is called.
-	 */
-	ret = __vfs_read(asma->file, buf, len, pos);
-	if (ret >= 0) {
-		/** Update backing file pos, since f_ops->read() doesn't */
-		asma->file->f_pos = *pos;
-	}
-	return ret;
-
-out_unlock:
-	mutex_unlock(&ashmem_mutex);
-	return ret;
-}
-
-static loff_t ashmem_llseek(struct file *file, loff_t offset, int origin)
-{
-	struct ashmem_area *asma = file->private_data;
-	int ret;
-
-	mutex_lock(&ashmem_mutex);
-
-	if (asma->size == 0) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	if (!asma->file) {
-		ret = -EBADF;
-		goto out;
-	}
-
-	ret = vfs_llseek(asma->file, offset, origin);
-	if (ret < 0)
-		goto out;
-
-	/** Copy f_pos from backing file, since f_ops->llseek() sets it */
-	file->f_pos = asma->file->f_pos;
-
-out:
-	mutex_unlock(&ashmem_mutex);
-	return ret;
-}
-
-static inline vm_flags_t calc_vm_may_flags(unsigned long prot)
-{
-	return _calc_vm_trans(prot, PROT_READ,  VM_MAYREAD) |
-	       _calc_vm_trans(prot, PROT_WRITE, VM_MAYWRITE) |
-	       _calc_vm_trans(prot, PROT_EXEC,  VM_MAYEXEC);
-}
-
-static int ashmem_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct ashmem_area *asma = file->private_data;
-	int ret = 0;
-
-	mutex_lock(&ashmem_mutex);
-
-	/* user needs to SET_SIZE before mapping */
-	if (unlikely(!asma->size)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	/* requested protection bits must match our allowed protection mask */
-	if (unlikely((vma->vm_flags & ~calc_vm_prot_bits(asma->prot_mask)) &
-		     calc_vm_prot_bits(PROT_MASK))) {
-		ret = -EPERM;
-		goto out;
-	}
-	vma->vm_flags &= ~calc_vm_may_flags(~asma->prot_mask);
-
-	if (!asma->file) {
-		char *name = ASHMEM_NAME_DEF;
-		struct file *vmfile;
-
-		if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0')
-			name = asma->name;
-
-		/* ... and allocate the backing shmem file */
-		vmfile = shmem_file_setup(name, asma->size, vma->vm_flags);
-		if (IS_ERR(vmfile)) {
-			ret = PTR_ERR(vmfile);
-			goto out;
-		}
-		asma->file = vmfile;
-	}
-	get_file(asma->file);
-
-	/*
-	 * XXX - Reworked to use shmem_zero_setup() instead of
-	 * shmem_set_file while we're in staging. -jstultz
-	 */
-	if (vma->vm_flags & VM_SHARED) {
-		ret = shmem_zero_setup(vma);
-		if (ret) {
-			fput(asma->file);
-			goto out;
-		}
-	}
-
-	if (vma->vm_file)
-		fput(vma->vm_file);
-	vma->vm_file = asma->file;
-
-out:
-	mutex_unlock(&ashmem_mutex);
-	return ret;
-}
-
-/*
- * ashmem_shrink - our cache shrinker, called from mm/vmscan.c
- *
- * 'nr_to_scan' is the number of objects to scan for freeing.
- *
- * 'gfp_mask' is the mask of the allocation that got us into this mess.
- *
- * Return value is the number of objects freed or -1 if we cannot
- * proceed without risk of deadlock (due to gfp_mask).
- *
- * We approximate LRU via least-recently-unpinned, jettisoning unpinned partial
- * chunks of ashmem regions LRU-wise one-at-a-time until we hit 'nr_to_scan'
- * pages freed.
- */
-static unsigned long
-ashmem_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
-{
-	struct ashmem_range *range, *next;
-	unsigned long freed = 0;
-
-	/* We might recurse into filesystem code, so bail out if necessary */
-	if (!(sc->gfp_mask & __GFP_FS))
-		return SHRINK_STOP;
-
-	mutex_lock(&ashmem_mutex);
-	list_for_each_entry_safe(range, next, &ashmem_lru_list, lru) {
-		loff_t start = range->pgstart * PAGE_SIZE;
-		loff_t end = (range->pgend + 1) * PAGE_SIZE;
-
-		vfs_fallocate(range->asma->file,
-			      FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
-			      start, end - start);
-		range->purged = ASHMEM_WAS_PURGED;
-		lru_del(range);
-
-		freed += range_size(range);
-		if (--sc->nr_to_scan <= 0)
-			break;
-	}
-	mutex_unlock(&ashmem_mutex);
-	return freed;
-}
-
-static unsigned long
-ashmem_shrink_count(struct shrinker *shrink, struct shrink_control *sc)
-{
-	/*
-	 * note that lru_count is count of pages on the lru, not a count of
-	 * objects on the list. This means the scan function needs to return the
-	 * number of pages freed, not the number of objects scanned.
-	 */
-	return lru_count;
-}
-
-static struct shrinker ashmem_shrinker = {
-	.count_objects = ashmem_shrink_count,
-	.scan_objects = ashmem_shrink_scan,
-	/*
-	 * XXX (dchinner): I wish people would comment on why they need on
-	 * significant changes to the default value here
-	 */
-	.seeks = DEFAULT_SEEKS * 4,
-};
-
-static int set_prot_mask(struct ashmem_area *asma, unsigned long prot)
-{
-	int ret = 0;
-
-	mutex_lock(&ashmem_mutex);
-
-	/* the user can only remove, not add, protection bits */
-	if (unlikely((asma->prot_mask & prot) != prot)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	/* does the application expect PROT_READ to imply PROT_EXEC? */
-	if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
-		prot |= PROT_EXEC;
-
-	asma->prot_mask = prot;
-
-out:
-	mutex_unlock(&ashmem_mutex);
-	return ret;
-}
-
-static int set_name(struct ashmem_area *asma, void __user *name)
-{
-	int len;
-	int ret = 0;
-	char local_name[ASHMEM_NAME_LEN];
-
-	/*
-	 * Holding the ashmem_mutex while doing a copy_from_user might cause
-	 * an data abort which would try to access mmap_sem. If another
-	 * thread has invoked ashmem_mmap then it will be holding the
-	 * semaphore and will be waiting for ashmem_mutex, there by leading to
-	 * deadlock. We'll release the mutex  and take the name to a local
-	 * variable that does not need protection and later copy the local
-	 * variable to the structure member with lock held.
-	 */
-	len = strncpy_from_user(local_name, name, ASHMEM_NAME_LEN);
-	if (len < 0)
-		return len;
-	if (len == ASHMEM_NAME_LEN)
-		local_name[ASHMEM_NAME_LEN - 1] = '\0';
-	mutex_lock(&ashmem_mutex);
-	/* cannot change an existing mapping's name */
-	if (unlikely(asma->file))
-		ret = -EINVAL;
-	else
-		strcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, local_name);
-
-	mutex_unlock(&ashmem_mutex);
-	return ret;
-}
-
-static int get_name(struct ashmem_area *asma, void __user *name)
-{
-	int ret = 0;
-	size_t len;
-	/*
-	 * Have a local variable to which we'll copy the content
-	 * from asma with the lock held. Later we can copy this to the user
-	 * space safely without holding any locks. So even if we proceed to
-	 * wait for mmap_sem, it won't lead to deadlock.
-	 */
-	char local_name[ASHMEM_NAME_LEN];
-
-	mutex_lock(&ashmem_mutex);
-	if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0') {
-		/*
-		 * Copying only `len', instead of ASHMEM_NAME_LEN, bytes
-		 * prevents us from revealing one user's stack to another.
-		 */
-		len = strlen(asma->name + ASHMEM_NAME_PREFIX_LEN) + 1;
-		memcpy(local_name, asma->name + ASHMEM_NAME_PREFIX_LEN, len);
-	} else {
-		len = sizeof(ASHMEM_NAME_DEF);
-		memcpy(local_name, ASHMEM_NAME_DEF, len);
-	}
-	mutex_unlock(&ashmem_mutex);
-
-	/*
-	 * Now we are just copying from the stack variable to userland
-	 * No lock held
-	 */
-	if (unlikely(copy_to_user(name, local_name, len)))
-		ret = -EFAULT;
-	return ret;
-}
-
-/*
- * ashmem_pin - pin the given ashmem region, returning whether it was
- * previously purged (ASHMEM_WAS_PURGED) or not (ASHMEM_NOT_PURGED).
- *
- * Caller must hold ashmem_mutex.
- */
-static int ashmem_pin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
-{
-	struct ashmem_range *range, *next;
-	int ret = ASHMEM_NOT_PURGED;
-
-	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned) {
-		/* moved past last applicable page; we can short circuit */
-		if (range_before_page(range, pgstart))
-			break;
-
-		/*
-		 * The user can ask us to pin pages that span multiple ranges,
-		 * or to pin pages that aren't even unpinned, so this is messy.
-		 *
-		 * Four cases:
-		 * 1. The requested range subsumes an existing range, so we
-		 *    just remove the entire matching range.
-		 * 2. The requested range overlaps the start of an existing
-		 *    range, so we just update that range.
-		 * 3. The requested range overlaps the end of an existing
-		 *    range, so we just update that range.
-		 * 4. The requested range punches a hole in an existing range,
-		 *    so we have to update one side of the range and then
-		 *    create a new range for the other side.
-		 */
-		if (page_range_in_range(range, pgstart, pgend)) {
-			ret |= range->purged;
-
-			/* Case #1: Easy. Just nuke the whole thing. */
-			if (page_range_subsumes_range(range, pgstart, pgend)) {
-				range_del(range);
-				continue;
-			}
-
-			/* Case #2: We overlap from the start, so adjust it */
-			if (range->pgstart >= pgstart) {
-				range_shrink(range, pgend + 1, range->pgend);
-				continue;
-			}
-
-			/* Case #3: We overlap from the rear, so adjust it */
-			if (range->pgend <= pgend) {
-				range_shrink(range, range->pgstart, pgstart-1);
-				continue;
-			}
-
-			/*
-			 * Case #4: We eat a chunk out of the middle. A bit
-			 * more complicated, we allocate a new range for the
-			 * second half and adjust the first chunk's endpoint.
-			 */
-			range_alloc(asma, range, range->purged,
-				    pgend + 1, range->pgend);
-			range_shrink(range, range->pgstart, pgstart - 1);
-			break;
-		}
-	}
-
-	return ret;
-}
-
-/*
- * ashmem_unpin - unpin the given range of pages. Returns zero on success.
- *
- * Caller must hold ashmem_mutex.
- */
-static int ashmem_unpin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
-{
-	struct ashmem_range *range, *next;
-	unsigned int purged = ASHMEM_NOT_PURGED;
-
-restart:
-	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned) {
-		/* short circuit: this is our insertion point */
-		if (range_before_page(range, pgstart))
-			break;
-
-		/*
-		 * The user can ask us to unpin pages that are already entirely
-		 * or partially pinned. We handle those two cases here.
-		 */
-		if (page_range_subsumed_by_range(range, pgstart, pgend))
-			return 0;
-		if (page_range_in_range(range, pgstart, pgend)) {
-			pgstart = min_t(size_t, range->pgstart, pgstart);
-			pgend = max_t(size_t, range->pgend, pgend);
-			purged |= range->purged;
-			range_del(range);
-			goto restart;
-		}
-	}
-
-	return range_alloc(asma, range, purged, pgstart, pgend);
-}
-
-/*
- * ashmem_get_pin_status - Returns ASHMEM_IS_UNPINNED if _any_ pages in the
- * given interval are unpinned and ASHMEM_IS_PINNED otherwise.
- *
- * Caller must hold ashmem_mutex.
- */
-static int ashmem_get_pin_status(struct ashmem_area *asma, size_t pgstart,
-				 size_t pgend)
-{
-	struct ashmem_range *range;
-	int ret = ASHMEM_IS_PINNED;
-
-	list_for_each_entry(range, &asma->unpinned_list, unpinned) {
-		if (range_before_page(range, pgstart))
-			break;
-		if (page_range_in_range(range, pgstart, pgend)) {
-			ret = ASHMEM_IS_UNPINNED;
-			break;
-		}
-	}
-
-	return ret;
-}
-
-static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,
-			    void __user *p)
-{
-	struct ashmem_pin pin;
-	size_t pgstart, pgend;
-	int ret = -EINVAL;
-
-	if (unlikely(!asma->file))
-		return -EINVAL;
-
-	if (unlikely(copy_from_user(&pin, p, sizeof(pin))))
-		return -EFAULT;
-
-	/* per custom, you can pass zero for len to mean "everything onward" */
-	if (!pin.len)
-		pin.len = PAGE_ALIGN(asma->size) - pin.offset;
-
-	if (unlikely((pin.offset | pin.len) & ~PAGE_MASK))
-		return -EINVAL;
-
-	if (unlikely(((__u32) -1) - pin.offset < pin.len))
-		return -EINVAL;
-
-	if (unlikely(PAGE_ALIGN(asma->size) < pin.offset + pin.len))
-		return -EINVAL;
-
-	pgstart = pin.offset / PAGE_SIZE;
-	pgend = pgstart + (pin.len / PAGE_SIZE) - 1;
-
-	mutex_lock(&ashmem_mutex);
-
-	switch (cmd) {
-	case ASHMEM_PIN:
-		ret = ashmem_pin(asma, pgstart, pgend);
-		break;
-	case ASHMEM_UNPIN:
-		ret = ashmem_unpin(asma, pgstart, pgend);
-		break;
-	case ASHMEM_GET_PIN_STATUS:
-		ret = ashmem_get_pin_status(asma, pgstart, pgend);
-		break;
-	}
-
-	mutex_unlock(&ashmem_mutex);
-
-	return ret;
-}
-
-static long ashmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct ashmem_area *asma = file->private_data;
-	long ret = -ENOTTY;
-
-	switch (cmd) {
-	case ASHMEM_SET_NAME:
-		ret = set_name(asma, (void __user *)arg);
-		break;
-	case ASHMEM_GET_NAME:
-		ret = get_name(asma, (void __user *)arg);
-		break;
-	case ASHMEM_SET_SIZE:
-		ret = -EINVAL;
-		if (!asma->file) {
-			ret = 0;
-			asma->size = (size_t) arg;
-		}
-		break;
-	case ASHMEM_GET_SIZE:
-		ret = asma->size;
-		break;
-	case ASHMEM_SET_PROT_MASK:
-		ret = set_prot_mask(asma, arg);
-		break;
-	case ASHMEM_GET_PROT_MASK:
-		ret = asma->prot_mask;
-		break;
-	case ASHMEM_PIN:
-	case ASHMEM_UNPIN:
-	case ASHMEM_GET_PIN_STATUS:
-		ret = ashmem_pin_unpin(asma, cmd, (void __user *)arg);
-		break;
-	case ASHMEM_PURGE_ALL_CACHES:
-		ret = -EPERM;
-		if (capable(CAP_SYS_ADMIN)) {
-			struct shrink_control sc = {
-				.gfp_mask = GFP_KERNEL,
-				.nr_to_scan = LONG_MAX,
-			};
-			ret = ashmem_shrink_count(&ashmem_shrinker, &sc);
-			ashmem_shrink_scan(&ashmem_shrinker, &sc);
-		}
-		break;
-	}
-
-	return ret;
-}
-
-/* support of 32bit userspace on 64bit platforms */
-#ifdef CONFIG_COMPAT
-static long compat_ashmem_ioctl(struct file *file, unsigned int cmd,
-				unsigned long arg)
-{
-	switch (cmd) {
-	case COMPAT_ASHMEM_SET_SIZE:
-		cmd = ASHMEM_SET_SIZE;
-		break;
-	case COMPAT_ASHMEM_SET_PROT_MASK:
-		cmd = ASHMEM_SET_PROT_MASK;
-		break;
-	}
-	return ashmem_ioctl(file, cmd, arg);
-}
-#endif
-
-static const struct file_operations ashmem_fops = {
-	.owner = THIS_MODULE,
-	.open = ashmem_open,
-	.release = ashmem_release,
-	.read = ashmem_read,
-	.llseek = ashmem_llseek,
-	.mmap = ashmem_mmap,
-	.unlocked_ioctl = ashmem_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = compat_ashmem_ioctl,
-#endif
-};
-
-static struct miscdevice ashmem_misc = {
-	.minor = MISC_DYNAMIC_MINOR,
-	.name = "ashmem",
-	.fops = &ashmem_fops,
-};
-
-static int __init ashmem_init(void)
-{
-	int ret;
-
-	ashmem_area_cachep = kmem_cache_create("ashmem_area_cache",
-					  sizeof(struct ashmem_area),
-					  0, 0, NULL);
-	if (unlikely(!ashmem_area_cachep)) {
-		pr_err("failed to create slab cache\n");
-		return -ENOMEM;
-	}
-
-	ashmem_range_cachep = kmem_cache_create("ashmem_range_cache",
-					  sizeof(struct ashmem_range),
-					  0, 0, NULL);
-	if (unlikely(!ashmem_range_cachep)) {
-		pr_err("failed to create slab cache\n");
-		return -ENOMEM;
-	}
-
-	ret = misc_register(&ashmem_misc);
-	if (unlikely(ret)) {
-		pr_err("failed to register misc device!\n");
-		return ret;
-	}
-
-	register_shrinker(&ashmem_shrinker);
-
-	pr_info("initialized\n");
-
-	return 0;
-}
-
-static void __exit ashmem_exit(void)
-{
-	unregister_shrinker(&ashmem_shrinker);
-
-	misc_deregister(&ashmem_misc);
-	kmem_cache_destroy(ashmem_range_cachep);
-	kmem_cache_destroy(ashmem_area_cachep);
-
-	pr_info("unloaded\n");
-}
-
-module_init(ashmem_init);
-module_exit(ashmem_exit);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/ashmem.h b/drivers/staging/android/ashmem.h
deleted file mode 100644
index 5abcfd7aa706..000000000000
--- a/drivers/staging/android/ashmem.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * include/linux/ashmem.h
- *
- * Copyright 2008 Google Inc.
- * Author: Robert Love
- *
- * This file is dual licensed.  It may be redistributed and/or modified
- * under the terms of the Apache 2.0 License OR version 2 of the GNU
- * General Public License.
- */
-
-#ifndef _LINUX_ASHMEM_H
-#define _LINUX_ASHMEM_H
-
-#include <linux/limits.h>
-#include <linux/ioctl.h>
-#include <linux/compat.h>
-
-#include "uapi/ashmem.h"
-
-/* support of 32bit userspace on 64bit platforms */
-#ifdef CONFIG_COMPAT
-#define COMPAT_ASHMEM_SET_SIZE		_IOW(__ASHMEMIOC, 3, compat_size_t)
-#define COMPAT_ASHMEM_SET_PROT_MASK	_IOW(__ASHMEMIOC, 5, unsigned int)
-#endif
-
-#endif	/* _LINUX_ASHMEM_H */
diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig
deleted file mode 100644
index 345234624492..000000000000
--- a/drivers/staging/android/ion/Kconfig
+++ /dev/null
@@ -1,35 +0,0 @@
-menuconfig ION
-	bool "Ion Memory Manager"
-	depends on HAVE_MEMBLOCK && HAS_DMA && MMU
-	select GENERIC_ALLOCATOR
-	select DMA_SHARED_BUFFER
-	---help---
-	  Chose this option to enable the ION Memory Manager,
-	  used by Android to efficiently allocate buffers
-	  from userspace that can be shared between drivers.
-	  If you're not using Android its probably safe to
-	  say N here.
-
-config ION_TEST
-	tristate "Ion Test Device"
-	depends on ION
-	help
-	  Choose this option to create a device that can be used to test the
-	  kernel and device side ION functions.
-
-config ION_DUMMY
-	bool "Dummy Ion driver"
-	depends on ION
-	help
-	  Provides a dummy ION driver that registers the
-	  /dev/ion device and some basic heaps. This can
-	  be used for testing the ION infrastructure if
-	  one doesn't have access to hardware drivers that
-	  use ION.
-
-config ION_TEGRA
-	tristate "Ion for Tegra"
-	depends on ARCH_TEGRA && ION
-	help
-	  Choose this option if you wish to use ion on an nVidia Tegra.
-
diff --git a/drivers/staging/android/ion/Makefile b/drivers/staging/android/ion/Makefile
deleted file mode 100644
index b56fd2bf2b4f..000000000000
--- a/drivers/staging/android/ion/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-obj-$(CONFIG_ION) +=	ion.o ion_heap.o ion_page_pool.o ion_system_heap.o \
-			ion_carveout_heap.o ion_chunk_heap.o ion_cma_heap.o
-obj-$(CONFIG_ION_TEST) += ion_test.o
-ifdef CONFIG_COMPAT
-obj-$(CONFIG_ION) += compat_ion.o
-endif
-
-obj-$(CONFIG_ION_DUMMY) += ion_dummy_driver.o
-obj-$(CONFIG_ION_TEGRA) += tegra/
-
diff --git a/drivers/staging/android/ion/compat_ion.c b/drivers/staging/android/ion/compat_ion.c
deleted file mode 100644
index a402fdaf54ca..000000000000
--- a/drivers/staging/android/ion/compat_ion.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * drivers/staging/android/ion/compat_ion.c
- *
- * Copyright (C) 2013 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/compat.h>
-#include <linux/fs.h>
-#include <linux/uaccess.h>
-
-#include "ion.h"
-#include "compat_ion.h"
-
-/* See drivers/staging/android/uapi/ion.h for the definition of these structs */
-struct compat_ion_allocation_data {
-	compat_size_t len;
-	compat_size_t align;
-	compat_uint_t heap_id_mask;
-	compat_uint_t flags;
-	compat_int_t handle;
-};
-
-struct compat_ion_custom_data {
-	compat_uint_t cmd;
-	compat_ulong_t arg;
-};
-
-struct compat_ion_handle_data {
-	compat_int_t handle;
-};
-
-#define COMPAT_ION_IOC_ALLOC	_IOWR(ION_IOC_MAGIC, 0, \
-				      struct compat_ion_allocation_data)
-#define COMPAT_ION_IOC_FREE	_IOWR(ION_IOC_MAGIC, 1, \
-				      struct compat_ion_handle_data)
-#define COMPAT_ION_IOC_CUSTOM	_IOWR(ION_IOC_MAGIC, 6, \
-				      struct compat_ion_custom_data)
-
-static int compat_get_ion_allocation_data(
-			struct compat_ion_allocation_data __user *data32,
-			struct ion_allocation_data __user *data)
-{
-	compat_size_t s;
-	compat_uint_t u;
-	compat_int_t i;
-	int err;
-
-	err = get_user(s, &data32->len);
-	err |= put_user(s, &data->len);
-	err |= get_user(s, &data32->align);
-	err |= put_user(s, &data->align);
-	err |= get_user(u, &data32->heap_id_mask);
-	err |= put_user(u, &data->heap_id_mask);
-	err |= get_user(u, &data32->flags);
-	err |= put_user(u, &data->flags);
-	err |= get_user(i, &data32->handle);
-	err |= put_user(i, &data->handle);
-
-	return err;
-}
-
-static int compat_get_ion_handle_data(
-			struct compat_ion_handle_data __user *data32,
-			struct ion_handle_data __user *data)
-{
-	compat_int_t i;
-	int err;
-
-	err = get_user(i, &data32->handle);
-	err |= put_user(i, &data->handle);
-
-	return err;
-}
-
-static int compat_put_ion_allocation_data(
-			struct compat_ion_allocation_data __user *data32,
-			struct ion_allocation_data __user *data)
-{
-	compat_size_t s;
-	compat_uint_t u;
-	compat_int_t i;
-	int err;
-
-	err = get_user(s, &data->len);
-	err |= put_user(s, &data32->len);
-	err |= get_user(s, &data->align);
-	err |= put_user(s, &data32->align);
-	err |= get_user(u, &data->heap_id_mask);
-	err |= put_user(u, &data32->heap_id_mask);
-	err |= get_user(u, &data->flags);
-	err |= put_user(u, &data32->flags);
-	err |= get_user(i, &data->handle);
-	err |= put_user(i, &data32->handle);
-
-	return err;
-}
-
-static int compat_get_ion_custom_data(
-			struct compat_ion_custom_data __user *data32,
-			struct ion_custom_data __user *data)
-{
-	compat_uint_t cmd;
-	compat_ulong_t arg;
-	int err;
-
-	err = get_user(cmd, &data32->cmd);
-	err |= put_user(cmd, &data->cmd);
-	err |= get_user(arg, &data32->arg);
-	err |= put_user(arg, &data->arg);
-
-	return err;
-};
-
-long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	long ret;
-
-	if (!filp->f_op->unlocked_ioctl)
-		return -ENOTTY;
-
-	switch (cmd) {
-	case COMPAT_ION_IOC_ALLOC:
-	{
-		struct compat_ion_allocation_data __user *data32;
-		struct ion_allocation_data __user *data;
-		int err;
-
-		data32 = compat_ptr(arg);
-		data = compat_alloc_user_space(sizeof(*data));
-		if (data == NULL)
-			return -EFAULT;
-
-		err = compat_get_ion_allocation_data(data32, data);
-		if (err)
-			return err;
-		ret = filp->f_op->unlocked_ioctl(filp, ION_IOC_ALLOC,
-							(unsigned long)data);
-		err = compat_put_ion_allocation_data(data32, data);
-		return ret ? ret : err;
-	}
-	case COMPAT_ION_IOC_FREE:
-	{
-		struct compat_ion_handle_data __user *data32;
-		struct ion_handle_data __user *data;
-		int err;
-
-		data32 = compat_ptr(arg);
-		data = compat_alloc_user_space(sizeof(*data));
-		if (data == NULL)
-			return -EFAULT;
-
-		err = compat_get_ion_handle_data(data32, data);
-		if (err)
-			return err;
-
-		return filp->f_op->unlocked_ioctl(filp, ION_IOC_FREE,
-							(unsigned long)data);
-	}
-	case COMPAT_ION_IOC_CUSTOM: {
-		struct compat_ion_custom_data __user *data32;
-		struct ion_custom_data __user *data;
-		int err;
-
-		data32 = compat_ptr(arg);
-		data = compat_alloc_user_space(sizeof(*data));
-		if (data == NULL)
-			return -EFAULT;
-
-		err = compat_get_ion_custom_data(data32, data);
-		if (err)
-			return err;
-
-		return filp->f_op->unlocked_ioctl(filp, ION_IOC_CUSTOM,
-							(unsigned long)data);
-	}
-	case ION_IOC_SHARE:
-	case ION_IOC_MAP:
-	case ION_IOC_IMPORT:
-	case ION_IOC_SYNC:
-		return filp->f_op->unlocked_ioctl(filp, cmd,
-						(unsigned long)compat_ptr(arg));
-	default:
-		return -ENOIOCTLCMD;
-	}
-}
diff --git a/drivers/staging/android/ion/compat_ion.h b/drivers/staging/android/ion/compat_ion.h
deleted file mode 100644
index c2ad5893dfda..000000000000
--- a/drivers/staging/android/ion/compat_ion.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
-
- * drivers/staging/android/ion/compat_ion.h
- *
- * Copyright (C) 2013 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _LINUX_COMPAT_ION_H
-#define _LINUX_COMPAT_ION_H
-
-#if IS_ENABLED(CONFIG_COMPAT)
-
-long compat_ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-
-#else
-
-#define compat_ion_ioctl  NULL
-
-#endif /* CONFIG_COMPAT */
-#endif /* _LINUX_COMPAT_ION_H */
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
deleted file mode 100644
index 217aa537c4eb..000000000000
--- a/drivers/staging/android/ion/ion.c
+++ /dev/null
@@ -1,1649 +0,0 @@
-/*
-
- * drivers/staging/android/ion/ion.c
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/file.h>
-#include <linux/freezer.h>
-#include <linux/fs.h>
-#include <linux/anon_inodes.h>
-#include <linux/kthread.h>
-#include <linux/list.h>
-#include <linux/memblock.h>
-#include <linux/miscdevice.h>
-#include <linux/export.h>
-#include <linux/mm.h>
-#include <linux/mm_types.h>
-#include <linux/rbtree.h>
-#include <linux/slab.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
-#include <linux/vmalloc.h>
-#include <linux/debugfs.h>
-#include <linux/dma-buf.h>
-#include <linux/idr.h>
-
-#include "ion.h"
-#include "ion_priv.h"
-#include "compat_ion.h"
-
-/**
- * struct ion_device - the metadata of the ion device node
- * @dev:		the actual misc device
- * @buffers:		an rb tree of all the existing buffers
- * @buffer_lock:	lock protecting the tree of buffers
- * @lock:		rwsem protecting the tree of heaps and clients
- * @heaps:		list of all the heaps in the system
- * @user_clients:	list of all the clients created from userspace
- */
-struct ion_device {
-	struct miscdevice dev;
-	struct rb_root buffers;
-	struct mutex buffer_lock;
-	struct rw_semaphore lock;
-	struct plist_head heaps;
-	long (*custom_ioctl)(struct ion_client *client, unsigned int cmd,
-			     unsigned long arg);
-	struct rb_root clients;
-	struct dentry *debug_root;
-	struct dentry *heaps_debug_root;
-	struct dentry *clients_debug_root;
-};
-
-/**
- * struct ion_client - a process/hw block local address space
- * @node:		node in the tree of all clients
- * @dev:		backpointer to ion device
- * @handles:		an rb tree of all the handles in this client
- * @idr:		an idr space for allocating handle ids
- * @lock:		lock protecting the tree of handles
- * @name:		used for debugging
- * @display_name:	used for debugging (unique version of @name)
- * @display_serial:	used for debugging (to make display_name unique)
- * @task:		used for debugging
- *
- * A client represents a list of buffers this client may access.
- * The mutex stored here is used to protect both handles tree
- * as well as the handles themselves, and should be held while modifying either.
- */
-struct ion_client {
-	struct rb_node node;
-	struct ion_device *dev;
-	struct rb_root handles;
-	struct idr idr;
-	struct mutex lock;
-	const char *name;
-	char *display_name;
-	int display_serial;
-	struct task_struct *task;
-	pid_t pid;
-	struct dentry *debug_root;
-};
-
-/**
- * ion_handle - a client local reference to a buffer
- * @ref:		reference count
- * @client:		back pointer to the client the buffer resides in
- * @buffer:		pointer to the buffer
- * @node:		node in the client's handle rbtree
- * @kmap_cnt:		count of times this client has mapped to kernel
- * @id:			client-unique id allocated by client->idr
- *
- * Modifications to node, map_cnt or mapping should be protected by the
- * lock in the client.  Other fields are never changed after initialization.
- */
-struct ion_handle {
-	struct kref ref;
-	struct ion_client *client;
-	struct ion_buffer *buffer;
-	struct rb_node node;
-	unsigned int kmap_cnt;
-	int id;
-};
-
-bool ion_buffer_fault_user_mappings(struct ion_buffer *buffer)
-{
-	return (buffer->flags & ION_FLAG_CACHED) &&
-		!(buffer->flags & ION_FLAG_CACHED_NEEDS_SYNC);
-}
-
-bool ion_buffer_cached(struct ion_buffer *buffer)
-{
-	return !!(buffer->flags & ION_FLAG_CACHED);
-}
-
-static inline struct page *ion_buffer_page(struct page *page)
-{
-	return (struct page *)((unsigned long)page & ~(1UL));
-}
-
-static inline bool ion_buffer_page_is_dirty(struct page *page)
-{
-	return !!((unsigned long)page & 1UL);
-}
-
-static inline void ion_buffer_page_dirty(struct page **page)
-{
-	*page = (struct page *)((unsigned long)(*page) | 1UL);
-}
-
-static inline void ion_buffer_page_clean(struct page **page)
-{
-	*page = (struct page *)((unsigned long)(*page) & ~(1UL));
-}
-
-/* this function should only be called while dev->lock is held */
-static void ion_buffer_add(struct ion_device *dev,
-			   struct ion_buffer *buffer)
-{
-	struct rb_node **p = &dev->buffers.rb_node;
-	struct rb_node *parent = NULL;
-	struct ion_buffer *entry;
-
-	while (*p) {
-		parent = *p;
-		entry = rb_entry(parent, struct ion_buffer, node);
-
-		if (buffer < entry) {
-			p = &(*p)->rb_left;
-		} else if (buffer > entry) {
-			p = &(*p)->rb_right;
-		} else {
-			pr_err("%s: buffer already found.", __func__);
-			BUG();
-		}
-	}
-
-	rb_link_node(&buffer->node, parent, p);
-	rb_insert_color(&buffer->node, &dev->buffers);
-}
-
-/* this function should only be called while dev->lock is held */
-static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
-				     struct ion_device *dev,
-				     unsigned long len,
-				     unsigned long align,
-				     unsigned long flags)
-{
-	struct ion_buffer *buffer;
-	struct sg_table *table;
-	struct scatterlist *sg;
-	int i, ret;
-
-	buffer = kzalloc(sizeof(struct ion_buffer), GFP_KERNEL);
-	if (!buffer)
-		return ERR_PTR(-ENOMEM);
-
-	buffer->heap = heap;
-	buffer->flags = flags;
-	kref_init(&buffer->ref);
-
-	ret = heap->ops->allocate(heap, buffer, len, align, flags);
-
-	if (ret) {
-		if (!(heap->flags & ION_HEAP_FLAG_DEFER_FREE))
-			goto err2;
-
-		ion_heap_freelist_drain(heap, 0);
-		ret = heap->ops->allocate(heap, buffer, len, align,
-					  flags);
-		if (ret)
-			goto err2;
-	}
-
-	buffer->dev = dev;
-	buffer->size = len;
-
-	table = heap->ops->map_dma(heap, buffer);
-	if (WARN_ONCE(table == NULL,
-			"heap->ops->map_dma should return ERR_PTR on error"))
-		table = ERR_PTR(-EINVAL);
-	if (IS_ERR(table)) {
-		heap->ops->free(buffer);
-		kfree(buffer);
-		return ERR_CAST(table);
-	}
-	buffer->sg_table = table;
-	if (ion_buffer_fault_user_mappings(buffer)) {
-		int num_pages = PAGE_ALIGN(buffer->size) / PAGE_SIZE;
-		struct scatterlist *sg;
-		int i, j, k = 0;
-
-		buffer->pages = vmalloc(sizeof(struct page *) * num_pages);
-		if (!buffer->pages) {
-			ret = -ENOMEM;
-			goto err1;
-		}
-
-		for_each_sg(table->sgl, sg, table->nents, i) {
-			struct page *page = sg_page(sg);
-
-			for (j = 0; j < sg->length / PAGE_SIZE; j++)
-				buffer->pages[k++] = page++;
-		}
-
-		if (ret)
-			goto err;
-	}
-
-	buffer->dev = dev;
-	buffer->size = len;
-	INIT_LIST_HEAD(&buffer->vmas);
-	mutex_init(&buffer->lock);
-	/* this will set up dma addresses for the sglist -- it is not
-	   technically correct as per the dma api -- a specific
-	   device isn't really taking ownership here.  However, in practice on
-	   our systems the only dma_address space is physical addresses.
-	   Additionally, we can't afford the overhead of invalidating every
-	   allocation via dma_map_sg. The implicit contract here is that
-	   memory coming from the heaps is ready for dma, ie if it has a
-	   cached mapping that mapping has been invalidated */
-	for_each_sg(buffer->sg_table->sgl, sg, buffer->sg_table->nents, i)
-		sg_dma_address(sg) = sg_phys(sg);
-	mutex_lock(&dev->buffer_lock);
-	ion_buffer_add(dev, buffer);
-	mutex_unlock(&dev->buffer_lock);
-	return buffer;
-
-err:
-	heap->ops->unmap_dma(heap, buffer);
-	heap->ops->free(buffer);
-err1:
-	vfree(buffer->pages);
-err2:
-	kfree(buffer);
-	return ERR_PTR(ret);
-}
-
-void ion_buffer_destroy(struct ion_buffer *buffer)
-{
-	if (WARN_ON(buffer->kmap_cnt > 0))
-		buffer->heap->ops->unmap_kernel(buffer->heap, buffer);
-	buffer->heap->ops->unmap_dma(buffer->heap, buffer);
-	buffer->heap->ops->free(buffer);
-	vfree(buffer->pages);
-	kfree(buffer);
-}
-
-static void _ion_buffer_destroy(struct kref *kref)
-{
-	struct ion_buffer *buffer = container_of(kref, struct ion_buffer, ref);
-	struct ion_heap *heap = buffer->heap;
-	struct ion_device *dev = buffer->dev;
-
-	mutex_lock(&dev->buffer_lock);
-	rb_erase(&buffer->node, &dev->buffers);
-	mutex_unlock(&dev->buffer_lock);
-
-	if (heap->flags & ION_HEAP_FLAG_DEFER_FREE)
-		ion_heap_freelist_add(heap, buffer);
-	else
-		ion_buffer_destroy(buffer);
-}
-
-static void ion_buffer_get(struct ion_buffer *buffer)
-{
-	kref_get(&buffer->ref);
-}
-
-static int ion_buffer_put(struct ion_buffer *buffer)
-{
-	return kref_put(&buffer->ref, _ion_buffer_destroy);
-}
-
-static void ion_buffer_add_to_handle(struct ion_buffer *buffer)
-{
-	mutex_lock(&buffer->lock);
-	buffer->handle_count++;
-	mutex_unlock(&buffer->lock);
-}
-
-static void ion_buffer_remove_from_handle(struct ion_buffer *buffer)
-{
-	/*
-	 * when a buffer is removed from a handle, if it is not in
-	 * any other handles, copy the taskcomm and the pid of the
-	 * process it's being removed from into the buffer.  At this
-	 * point there will be no way to track what processes this buffer is
-	 * being used by, it only exists as a dma_buf file descriptor.
-	 * The taskcomm and pid can provide a debug hint as to where this fd
-	 * is in the system
-	 */
-	mutex_lock(&buffer->lock);
-	buffer->handle_count--;
-	BUG_ON(buffer->handle_count < 0);
-	if (!buffer->handle_count) {
-		struct task_struct *task;
-
-		task = current->group_leader;
-		get_task_comm(buffer->task_comm, task);
-		buffer->pid = task_pid_nr(task);
-	}
-	mutex_unlock(&buffer->lock);
-}
-
-static struct ion_handle *ion_handle_create(struct ion_client *client,
-				     struct ion_buffer *buffer)
-{
-	struct ion_handle *handle;
-
-	handle = kzalloc(sizeof(struct ion_handle), GFP_KERNEL);
-	if (!handle)
-		return ERR_PTR(-ENOMEM);
-	kref_init(&handle->ref);
-	RB_CLEAR_NODE(&handle->node);
-	handle->client = client;
-	ion_buffer_get(buffer);
-	ion_buffer_add_to_handle(buffer);
-	handle->buffer = buffer;
-
-	return handle;
-}
-
-static void ion_handle_kmap_put(struct ion_handle *);
-
-static void ion_handle_destroy(struct kref *kref)
-{
-	struct ion_handle *handle = container_of(kref, struct ion_handle, ref);
-	struct ion_client *client = handle->client;
-	struct ion_buffer *buffer = handle->buffer;
-
-	mutex_lock(&buffer->lock);
-	while (handle->kmap_cnt)
-		ion_handle_kmap_put(handle);
-	mutex_unlock(&buffer->lock);
-
-	idr_remove(&client->idr, handle->id);
-	if (!RB_EMPTY_NODE(&handle->node))
-		rb_erase(&handle->node, &client->handles);
-
-	ion_buffer_remove_from_handle(buffer);
-	ion_buffer_put(buffer);
-
-	kfree(handle);
-}
-
-struct ion_buffer *ion_handle_buffer(struct ion_handle *handle)
-{
-	return handle->buffer;
-}
-
-static void ion_handle_get(struct ion_handle *handle)
-{
-	kref_get(&handle->ref);
-}
-
-static int ion_handle_put(struct ion_handle *handle)
-{
-	struct ion_client *client = handle->client;
-	int ret;
-
-	mutex_lock(&client->lock);
-	ret = kref_put(&handle->ref, ion_handle_destroy);
-	mutex_unlock(&client->lock);
-
-	return ret;
-}
-
-static struct ion_handle *ion_handle_lookup(struct ion_client *client,
-					    struct ion_buffer *buffer)
-{
-	struct rb_node *n = client->handles.rb_node;
-
-	while (n) {
-		struct ion_handle *entry = rb_entry(n, struct ion_handle, node);
-
-		if (buffer < entry->buffer)
-			n = n->rb_left;
-		else if (buffer > entry->buffer)
-			n = n->rb_right;
-		else
-			return entry;
-	}
-	return ERR_PTR(-EINVAL);
-}
-
-static struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
-						int id)
-{
-	struct ion_handle *handle;
-
-	mutex_lock(&client->lock);
-	handle = idr_find(&client->idr, id);
-	if (handle)
-		ion_handle_get(handle);
-	mutex_unlock(&client->lock);
-
-	return handle ? handle : ERR_PTR(-EINVAL);
-}
-
-static bool ion_handle_validate(struct ion_client *client,
-				struct ion_handle *handle)
-{
-	WARN_ON(!mutex_is_locked(&client->lock));
-	return idr_find(&client->idr, handle->id) == handle;
-}
-
-static int ion_handle_add(struct ion_client *client, struct ion_handle *handle)
-{
-	int id;
-	struct rb_node **p = &client->handles.rb_node;
-	struct rb_node *parent = NULL;
-	struct ion_handle *entry;
-
-	id = idr_alloc(&client->idr, handle, 1, 0, GFP_KERNEL);
-	if (id < 0)
-		return id;
-
-	handle->id = id;
-
-	while (*p) {
-		parent = *p;
-		entry = rb_entry(parent, struct ion_handle, node);
-
-		if (handle->buffer < entry->buffer)
-			p = &(*p)->rb_left;
-		else if (handle->buffer > entry->buffer)
-			p = &(*p)->rb_right;
-		else
-			WARN(1, "%s: buffer already found.", __func__);
-	}
-
-	rb_link_node(&handle->node, parent, p);
-	rb_insert_color(&handle->node, &client->handles);
-
-	return 0;
-}
-
-struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
-			     size_t align, unsigned int heap_id_mask,
-			     unsigned int flags)
-{
-	struct ion_handle *handle;
-	struct ion_device *dev = client->dev;
-	struct ion_buffer *buffer = NULL;
-	struct ion_heap *heap;
-	int ret;
-
-	pr_debug("%s: len %zu align %zu heap_id_mask %u flags %x\n", __func__,
-		 len, align, heap_id_mask, flags);
-	/*
-	 * traverse the list of heaps available in this system in priority
-	 * order.  If the heap type is supported by the client, and matches the
-	 * request of the caller allocate from it.  Repeat until allocate has
-	 * succeeded or all heaps have been tried
-	 */
-	len = PAGE_ALIGN(len);
-
-	if (!len)
-		return ERR_PTR(-EINVAL);
-
-	down_read(&dev->lock);
-	plist_for_each_entry(heap, &dev->heaps, node) {
-		/* if the caller didn't specify this heap id */
-		if (!((1 << heap->id) & heap_id_mask))
-			continue;
-		buffer = ion_buffer_create(heap, dev, len, align, flags);
-		if (!IS_ERR(buffer))
-			break;
-	}
-	up_read(&dev->lock);
-
-	if (buffer == NULL)
-		return ERR_PTR(-ENODEV);
-
-	if (IS_ERR(buffer))
-		return ERR_CAST(buffer);
-
-	handle = ion_handle_create(client, buffer);
-
-	/*
-	 * ion_buffer_create will create a buffer with a ref_cnt of 1,
-	 * and ion_handle_create will take a second reference, drop one here
-	 */
-	ion_buffer_put(buffer);
-
-	if (IS_ERR(handle))
-		return handle;
-
-	mutex_lock(&client->lock);
-	ret = ion_handle_add(client, handle);
-	mutex_unlock(&client->lock);
-	if (ret) {
-		ion_handle_put(handle);
-		handle = ERR_PTR(ret);
-	}
-
-	return handle;
-}
-EXPORT_SYMBOL(ion_alloc);
-
-void ion_free(struct ion_client *client, struct ion_handle *handle)
-{
-	bool valid_handle;
-
-	BUG_ON(client != handle->client);
-
-	mutex_lock(&client->lock);
-	valid_handle = ion_handle_validate(client, handle);
-
-	if (!valid_handle) {
-		WARN(1, "%s: invalid handle passed to free.\n", __func__);
-		mutex_unlock(&client->lock);
-		return;
-	}
-	mutex_unlock(&client->lock);
-	ion_handle_put(handle);
-}
-EXPORT_SYMBOL(ion_free);
-
-int ion_phys(struct ion_client *client, struct ion_handle *handle,
-	     ion_phys_addr_t *addr, size_t *len)
-{
-	struct ion_buffer *buffer;
-	int ret;
-
-	mutex_lock(&client->lock);
-	if (!ion_handle_validate(client, handle)) {
-		mutex_unlock(&client->lock);
-		return -EINVAL;
-	}
-
-	buffer = handle->buffer;
-
-	if (!buffer->heap->ops->phys) {
-		pr_err("%s: ion_phys is not implemented by this heap (name=%s, type=%d).\n",
-			__func__, buffer->heap->name, buffer->heap->type);
-		mutex_unlock(&client->lock);
-		return -ENODEV;
-	}
-	mutex_unlock(&client->lock);
-	ret = buffer->heap->ops->phys(buffer->heap, buffer, addr, len);
-	return ret;
-}
-EXPORT_SYMBOL(ion_phys);
-
-static void *ion_buffer_kmap_get(struct ion_buffer *buffer)
-{
-	void *vaddr;
-
-	if (buffer->kmap_cnt) {
-		buffer->kmap_cnt++;
-		return buffer->vaddr;
-	}
-	vaddr = buffer->heap->ops->map_kernel(buffer->heap, buffer);
-	if (WARN_ONCE(vaddr == NULL,
-			"heap->ops->map_kernel should return ERR_PTR on error"))
-		return ERR_PTR(-EINVAL);
-	if (IS_ERR(vaddr))
-		return vaddr;
-	buffer->vaddr = vaddr;
-	buffer->kmap_cnt++;
-	return vaddr;
-}
-
-static void *ion_handle_kmap_get(struct ion_handle *handle)
-{
-	struct ion_buffer *buffer = handle->buffer;
-	void *vaddr;
-
-	if (handle->kmap_cnt) {
-		handle->kmap_cnt++;
-		return buffer->vaddr;
-	}
-	vaddr = ion_buffer_kmap_get(buffer);
-	if (IS_ERR(vaddr))
-		return vaddr;
-	handle->kmap_cnt++;
-	return vaddr;
-}
-
-static void ion_buffer_kmap_put(struct ion_buffer *buffer)
-{
-	buffer->kmap_cnt--;
-	if (!buffer->kmap_cnt) {
-		buffer->heap->ops->unmap_kernel(buffer->heap, buffer);
-		buffer->vaddr = NULL;
-	}
-}
-
-static void ion_handle_kmap_put(struct ion_handle *handle)
-{
-	struct ion_buffer *buffer = handle->buffer;
-
-	if (!handle->kmap_cnt) {
-		WARN(1, "%s: Double unmap detected! bailing...\n", __func__);
-		return;
-	}
-	handle->kmap_cnt--;
-	if (!handle->kmap_cnt)
-		ion_buffer_kmap_put(buffer);
-}
-
-void *ion_map_kernel(struct ion_client *client, struct ion_handle *handle)
-{
-	struct ion_buffer *buffer;
-	void *vaddr;
-
-	mutex_lock(&client->lock);
-	if (!ion_handle_validate(client, handle)) {
-		pr_err("%s: invalid handle passed to map_kernel.\n",
-		       __func__);
-		mutex_unlock(&client->lock);
-		return ERR_PTR(-EINVAL);
-	}
-
-	buffer = handle->buffer;
-
-	if (!handle->buffer->heap->ops->map_kernel) {
-		pr_err("%s: map_kernel is not implemented by this heap.\n",
-		       __func__);
-		mutex_unlock(&client->lock);
-		return ERR_PTR(-ENODEV);
-	}
-
-	mutex_lock(&buffer->lock);
-	vaddr = ion_handle_kmap_get(handle);
-	mutex_unlock(&buffer->lock);
-	mutex_unlock(&client->lock);
-	return vaddr;
-}
-EXPORT_SYMBOL(ion_map_kernel);
-
-void ion_unmap_kernel(struct ion_client *client, struct ion_handle *handle)
-{
-	struct ion_buffer *buffer;
-
-	mutex_lock(&client->lock);
-	buffer = handle->buffer;
-	mutex_lock(&buffer->lock);
-	ion_handle_kmap_put(handle);
-	mutex_unlock(&buffer->lock);
-	mutex_unlock(&client->lock);
-}
-EXPORT_SYMBOL(ion_unmap_kernel);
-
-static int ion_debug_client_show(struct seq_file *s, void *unused)
-{
-	struct ion_client *client = s->private;
-	struct rb_node *n;
-	size_t sizes[ION_NUM_HEAP_IDS] = {0};
-	const char *names[ION_NUM_HEAP_IDS] = {NULL};
-	int i;
-
-	mutex_lock(&client->lock);
-	for (n = rb_first(&client->handles); n; n = rb_next(n)) {
-		struct ion_handle *handle = rb_entry(n, struct ion_handle,
-						     node);
-		unsigned int id = handle->buffer->heap->id;
-
-		if (!names[id])
-			names[id] = handle->buffer->heap->name;
-		sizes[id] += handle->buffer->size;
-	}
-	mutex_unlock(&client->lock);
-
-	seq_printf(s, "%16.16s: %16.16s\n", "heap_name", "size_in_bytes");
-	for (i = 0; i < ION_NUM_HEAP_IDS; i++) {
-		if (!names[i])
-			continue;
-		seq_printf(s, "%16.16s: %16zu\n", names[i], sizes[i]);
-	}
-	return 0;
-}
-
-static int ion_debug_client_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, ion_debug_client_show, inode->i_private);
-}
-
-static const struct file_operations debug_client_fops = {
-	.open = ion_debug_client_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static int ion_get_client_serial(const struct rb_root *root,
-					const unsigned char *name)
-{
-	int serial = -1;
-	struct rb_node *node;
-
-	for (node = rb_first(root); node; node = rb_next(node)) {
-		struct ion_client *client = rb_entry(node, struct ion_client,
-						node);
-
-		if (strcmp(client->name, name))
-			continue;
-		serial = max(serial, client->display_serial);
-	}
-	return serial + 1;
-}
-
-struct ion_client *ion_client_create(struct ion_device *dev,
-				     const char *name)
-{
-	struct ion_client *client;
-	struct task_struct *task;
-	struct rb_node **p;
-	struct rb_node *parent = NULL;
-	struct ion_client *entry;
-	pid_t pid;
-
-	if (!name) {
-		pr_err("%s: Name cannot be null\n", __func__);
-		return ERR_PTR(-EINVAL);
-	}
-
-	get_task_struct(current->group_leader);
-	task_lock(current->group_leader);
-	pid = task_pid_nr(current->group_leader);
-	/* don't bother to store task struct for kernel threads,
-	   they can't be killed anyway */
-	if (current->group_leader->flags & PF_KTHREAD) {
-		put_task_struct(current->group_leader);
-		task = NULL;
-	} else {
-		task = current->group_leader;
-	}
-	task_unlock(current->group_leader);
-
-	client = kzalloc(sizeof(struct ion_client), GFP_KERNEL);
-	if (!client)
-		goto err_put_task_struct;
-
-	client->dev = dev;
-	client->handles = RB_ROOT;
-	idr_init(&client->idr);
-	mutex_init(&client->lock);
-	client->task = task;
-	client->pid = pid;
-	client->name = kstrdup(name, GFP_KERNEL);
-	if (!client->name)
-		goto err_free_client;
-
-	down_write(&dev->lock);
-	client->display_serial = ion_get_client_serial(&dev->clients, name);
-	client->display_name = kasprintf(
-		GFP_KERNEL, "%s-%d", name, client->display_serial);
-	if (!client->display_name) {
-		up_write(&dev->lock);
-		goto err_free_client_name;
-	}
-	p = &dev->clients.rb_node;
-	while (*p) {
-		parent = *p;
-		entry = rb_entry(parent, struct ion_client, node);
-
-		if (client < entry)
-			p = &(*p)->rb_left;
-		else if (client > entry)
-			p = &(*p)->rb_right;
-	}
-	rb_link_node(&client->node, parent, p);
-	rb_insert_color(&client->node, &dev->clients);
-
-	client->debug_root = debugfs_create_file(client->display_name, 0664,
-						dev->clients_debug_root,
-						client, &debug_client_fops);
-	if (!client->debug_root) {
-		char buf[256], *path;
-
-		path = dentry_path(dev->clients_debug_root, buf, 256);
-		pr_err("Failed to create client debugfs at %s/%s\n",
-			path, client->display_name);
-	}
-
-	up_write(&dev->lock);
-
-	return client;
-
-err_free_client_name:
-	kfree(client->name);
-err_free_client:
-	kfree(client);
-err_put_task_struct:
-	if (task)
-		put_task_struct(current->group_leader);
-	return ERR_PTR(-ENOMEM);
-}
-EXPORT_SYMBOL(ion_client_create);
-
-void ion_client_destroy(struct ion_client *client)
-{
-	struct ion_device *dev = client->dev;
-	struct rb_node *n;
-
-	pr_debug("%s: %d\n", __func__, __LINE__);
-	while ((n = rb_first(&client->handles))) {
-		struct ion_handle *handle = rb_entry(n, struct ion_handle,
-						     node);
-		ion_handle_destroy(&handle->ref);
-	}
-
-	idr_destroy(&client->idr);
-
-	down_write(&dev->lock);
-	if (client->task)
-		put_task_struct(client->task);
-	rb_erase(&client->node, &dev->clients);
-	debugfs_remove_recursive(client->debug_root);
-	up_write(&dev->lock);
-
-	kfree(client->display_name);
-	kfree(client->name);
-	kfree(client);
-}
-EXPORT_SYMBOL(ion_client_destroy);
-
-struct sg_table *ion_sg_table(struct ion_client *client,
-			      struct ion_handle *handle)
-{
-	struct ion_buffer *buffer;
-	struct sg_table *table;
-
-	mutex_lock(&client->lock);
-	if (!ion_handle_validate(client, handle)) {
-		pr_err("%s: invalid handle passed to map_dma.\n",
-		       __func__);
-		mutex_unlock(&client->lock);
-		return ERR_PTR(-EINVAL);
-	}
-	buffer = handle->buffer;
-	table = buffer->sg_table;
-	mutex_unlock(&client->lock);
-	return table;
-}
-EXPORT_SYMBOL(ion_sg_table);
-
-static void ion_buffer_sync_for_device(struct ion_buffer *buffer,
-				       struct device *dev,
-				       enum dma_data_direction direction);
-
-static struct sg_table *ion_map_dma_buf(struct dma_buf_attachment *attachment,
-					enum dma_data_direction direction)
-{
-	struct dma_buf *dmabuf = attachment->dmabuf;
-	struct ion_buffer *buffer = dmabuf->priv;
-
-	ion_buffer_sync_for_device(buffer, attachment->dev, direction);
-	return buffer->sg_table;
-}
-
-static void ion_unmap_dma_buf(struct dma_buf_attachment *attachment,
-			      struct sg_table *table,
-			      enum dma_data_direction direction)
-{
-}
-
-void ion_pages_sync_for_device(struct device *dev, struct page *page,
-		size_t size, enum dma_data_direction dir)
-{
-	struct scatterlist sg;
-
-	sg_init_table(&sg, 1);
-	sg_set_page(&sg, page, size, 0);
-	/*
-	 * This is not correct - sg_dma_address needs a dma_addr_t that is valid
-	 * for the targeted device, but this works on the currently targeted
-	 * hardware.
-	 */
-	sg_dma_address(&sg) = page_to_phys(page);
-	dma_sync_sg_for_device(dev, &sg, 1, dir);
-}
-
-struct ion_vma_list {
-	struct list_head list;
-	struct vm_area_struct *vma;
-};
-
-static void ion_buffer_sync_for_device(struct ion_buffer *buffer,
-				       struct device *dev,
-				       enum dma_data_direction dir)
-{
-	struct ion_vma_list *vma_list;
-	int pages = PAGE_ALIGN(buffer->size) / PAGE_SIZE;
-	int i;
-
-	pr_debug("%s: syncing for device %s\n", __func__,
-		 dev ? dev_name(dev) : "null");
-
-	if (!ion_buffer_fault_user_mappings(buffer))
-		return;
-
-	mutex_lock(&buffer->lock);
-	for (i = 0; i < pages; i++) {
-		struct page *page = buffer->pages[i];
-
-		if (ion_buffer_page_is_dirty(page))
-			ion_pages_sync_for_device(dev, ion_buffer_page(page),
-							PAGE_SIZE, dir);
-
-		ion_buffer_page_clean(buffer->pages + i);
-	}
-	list_for_each_entry(vma_list, &buffer->vmas, list) {
-		struct vm_area_struct *vma = vma_list->vma;
-
-		zap_page_range(vma, vma->vm_start, vma->vm_end - vma->vm_start,
-			       NULL);
-	}
-	mutex_unlock(&buffer->lock);
-}
-
-static int ion_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct ion_buffer *buffer = vma->vm_private_data;
-	unsigned long pfn;
-	int ret;
-
-	mutex_lock(&buffer->lock);
-	ion_buffer_page_dirty(buffer->pages + vmf->pgoff);
-	BUG_ON(!buffer->pages || !buffer->pages[vmf->pgoff]);
-
-	pfn = page_to_pfn(ion_buffer_page(buffer->pages[vmf->pgoff]));
-	ret = vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn);
-	mutex_unlock(&buffer->lock);
-	if (ret)
-		return VM_FAULT_ERROR;
-
-	return VM_FAULT_NOPAGE;
-}
-
-static void ion_vm_open(struct vm_area_struct *vma)
-{
-	struct ion_buffer *buffer = vma->vm_private_data;
-	struct ion_vma_list *vma_list;
-
-	vma_list = kmalloc(sizeof(struct ion_vma_list), GFP_KERNEL);
-	if (!vma_list)
-		return;
-	vma_list->vma = vma;
-	mutex_lock(&buffer->lock);
-	list_add(&vma_list->list, &buffer->vmas);
-	mutex_unlock(&buffer->lock);
-	pr_debug("%s: adding %p\n", __func__, vma);
-}
-
-static void ion_vm_close(struct vm_area_struct *vma)
-{
-	struct ion_buffer *buffer = vma->vm_private_data;
-	struct ion_vma_list *vma_list, *tmp;
-
-	pr_debug("%s\n", __func__);
-	mutex_lock(&buffer->lock);
-	list_for_each_entry_safe(vma_list, tmp, &buffer->vmas, list) {
-		if (vma_list->vma != vma)
-			continue;
-		list_del(&vma_list->list);
-		kfree(vma_list);
-		pr_debug("%s: deleting %p\n", __func__, vma);
-		break;
-	}
-	mutex_unlock(&buffer->lock);
-}
-
-static const struct vm_operations_struct ion_vma_ops = {
-	.open = ion_vm_open,
-	.close = ion_vm_close,
-	.fault = ion_vm_fault,
-};
-
-static int ion_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma)
-{
-	struct ion_buffer *buffer = dmabuf->priv;
-	int ret = 0;
-
-	if (!buffer->heap->ops->map_user) {
-		pr_err("%s: this heap does not define a method for mapping to userspace\n",
-			__func__);
-		return -EINVAL;
-	}
-
-	if (ion_buffer_fault_user_mappings(buffer)) {
-		vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND |
-							VM_DONTDUMP;
-		vma->vm_private_data = buffer;
-		vma->vm_ops = &ion_vma_ops;
-		ion_vm_open(vma);
-		return 0;
-	}
-
-	if (!(buffer->flags & ION_FLAG_CACHED))
-		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
-
-	mutex_lock(&buffer->lock);
-	/* now map it to userspace */
-	ret = buffer->heap->ops->map_user(buffer->heap, buffer, vma);
-	mutex_unlock(&buffer->lock);
-
-	if (ret)
-		pr_err("%s: failure mapping buffer to userspace\n",
-		       __func__);
-
-	return ret;
-}
-
-static void ion_dma_buf_release(struct dma_buf *dmabuf)
-{
-	struct ion_buffer *buffer = dmabuf->priv;
-
-	ion_buffer_put(buffer);
-}
-
-static void *ion_dma_buf_kmap(struct dma_buf *dmabuf, unsigned long offset)
-{
-	struct ion_buffer *buffer = dmabuf->priv;
-
-	return buffer->vaddr + offset * PAGE_SIZE;
-}
-
-static void ion_dma_buf_kunmap(struct dma_buf *dmabuf, unsigned long offset,
-			       void *ptr)
-{
-}
-
-static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf, size_t start,
-					size_t len,
-					enum dma_data_direction direction)
-{
-	struct ion_buffer *buffer = dmabuf->priv;
-	void *vaddr;
-
-	if (!buffer->heap->ops->map_kernel) {
-		pr_err("%s: map kernel is not implemented by this heap.\n",
-		       __func__);
-		return -ENODEV;
-	}
-
-	mutex_lock(&buffer->lock);
-	vaddr = ion_buffer_kmap_get(buffer);
-	mutex_unlock(&buffer->lock);
-	return PTR_ERR_OR_ZERO(vaddr);
-}
-
-static void ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf, size_t start,
-				       size_t len,
-				       enum dma_data_direction direction)
-{
-	struct ion_buffer *buffer = dmabuf->priv;
-
-	mutex_lock(&buffer->lock);
-	ion_buffer_kmap_put(buffer);
-	mutex_unlock(&buffer->lock);
-}
-
-static struct dma_buf_ops dma_buf_ops = {
-	.map_dma_buf = ion_map_dma_buf,
-	.unmap_dma_buf = ion_unmap_dma_buf,
-	.mmap = ion_mmap,
-	.release = ion_dma_buf_release,
-	.begin_cpu_access = ion_dma_buf_begin_cpu_access,
-	.end_cpu_access = ion_dma_buf_end_cpu_access,
-	.kmap_atomic = ion_dma_buf_kmap,
-	.kunmap_atomic = ion_dma_buf_kunmap,
-	.kmap = ion_dma_buf_kmap,
-	.kunmap = ion_dma_buf_kunmap,
-};
-
-struct dma_buf *ion_share_dma_buf(struct ion_client *client,
-						struct ion_handle *handle)
-{
-	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
-	struct ion_buffer *buffer;
-	struct dma_buf *dmabuf;
-	bool valid_handle;
-
-	mutex_lock(&client->lock);
-	valid_handle = ion_handle_validate(client, handle);
-	if (!valid_handle) {
-		WARN(1, "%s: invalid handle passed to share.\n", __func__);
-		mutex_unlock(&client->lock);
-		return ERR_PTR(-EINVAL);
-	}
-	buffer = handle->buffer;
-	ion_buffer_get(buffer);
-	mutex_unlock(&client->lock);
-
-	exp_info.ops = &dma_buf_ops;
-	exp_info.size = buffer->size;
-	exp_info.flags = O_RDWR;
-	exp_info.priv = buffer;
-
-	dmabuf = dma_buf_export(&exp_info);
-	if (IS_ERR(dmabuf)) {
-		ion_buffer_put(buffer);
-		return dmabuf;
-	}
-
-	return dmabuf;
-}
-EXPORT_SYMBOL(ion_share_dma_buf);
-
-int ion_share_dma_buf_fd(struct ion_client *client, struct ion_handle *handle)
-{
-	struct dma_buf *dmabuf;
-	int fd;
-
-	dmabuf = ion_share_dma_buf(client, handle);
-	if (IS_ERR(dmabuf))
-		return PTR_ERR(dmabuf);
-
-	fd = dma_buf_fd(dmabuf, O_CLOEXEC);
-	if (fd < 0)
-		dma_buf_put(dmabuf);
-
-	return fd;
-}
-EXPORT_SYMBOL(ion_share_dma_buf_fd);
-
-struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd)
-{
-	struct dma_buf *dmabuf;
-	struct ion_buffer *buffer;
-	struct ion_handle *handle;
-	int ret;
-
-	dmabuf = dma_buf_get(fd);
-	if (IS_ERR(dmabuf))
-		return ERR_CAST(dmabuf);
-	/* if this memory came from ion */
-
-	if (dmabuf->ops != &dma_buf_ops) {
-		pr_err("%s: can not import dmabuf from another exporter\n",
-		       __func__);
-		dma_buf_put(dmabuf);
-		return ERR_PTR(-EINVAL);
-	}
-	buffer = dmabuf->priv;
-
-	mutex_lock(&client->lock);
-	/* if a handle exists for this buffer just take a reference to it */
-	handle = ion_handle_lookup(client, buffer);
-	if (!IS_ERR(handle)) {
-		ion_handle_get(handle);
-		mutex_unlock(&client->lock);
-		goto end;
-	}
-	mutex_unlock(&client->lock);
-
-	handle = ion_handle_create(client, buffer);
-	if (IS_ERR(handle))
-		goto end;
-
-	mutex_lock(&client->lock);
-	ret = ion_handle_add(client, handle);
-	mutex_unlock(&client->lock);
-	if (ret) {
-		ion_handle_put(handle);
-		handle = ERR_PTR(ret);
-	}
-
-end:
-	dma_buf_put(dmabuf);
-	return handle;
-}
-EXPORT_SYMBOL(ion_import_dma_buf);
-
-static int ion_sync_for_device(struct ion_client *client, int fd)
-{
-	struct dma_buf *dmabuf;
-	struct ion_buffer *buffer;
-
-	dmabuf = dma_buf_get(fd);
-	if (IS_ERR(dmabuf))
-		return PTR_ERR(dmabuf);
-
-	/* if this memory came from ion */
-	if (dmabuf->ops != &dma_buf_ops) {
-		pr_err("%s: can not sync dmabuf from another exporter\n",
-		       __func__);
-		dma_buf_put(dmabuf);
-		return -EINVAL;
-	}
-	buffer = dmabuf->priv;
-
-	dma_sync_sg_for_device(NULL, buffer->sg_table->sgl,
-			       buffer->sg_table->nents, DMA_BIDIRECTIONAL);
-	dma_buf_put(dmabuf);
-	return 0;
-}
-
-/* fix up the cases where the ioctl direction bits are incorrect */
-static unsigned int ion_ioctl_dir(unsigned int cmd)
-{
-	switch (cmd) {
-	case ION_IOC_SYNC:
-	case ION_IOC_FREE:
-	case ION_IOC_CUSTOM:
-		return _IOC_WRITE;
-	default:
-		return _IOC_DIR(cmd);
-	}
-}
-
-static long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	struct ion_client *client = filp->private_data;
-	struct ion_device *dev = client->dev;
-	struct ion_handle *cleanup_handle = NULL;
-	int ret = 0;
-	unsigned int dir;
-
-	union {
-		struct ion_fd_data fd;
-		struct ion_allocation_data allocation;
-		struct ion_handle_data handle;
-		struct ion_custom_data custom;
-	} data;
-
-	dir = ion_ioctl_dir(cmd);
-
-	if (_IOC_SIZE(cmd) > sizeof(data))
-		return -EINVAL;
-
-	if (dir & _IOC_WRITE)
-		if (copy_from_user(&data, (void __user *)arg, _IOC_SIZE(cmd)))
-			return -EFAULT;
-
-	switch (cmd) {
-	case ION_IOC_ALLOC:
-	{
-		struct ion_handle *handle;
-
-		handle = ion_alloc(client, data.allocation.len,
-						data.allocation.align,
-						data.allocation.heap_id_mask,
-						data.allocation.flags);
-		if (IS_ERR(handle))
-			return PTR_ERR(handle);
-
-		data.allocation.handle = handle->id;
-
-		cleanup_handle = handle;
-		break;
-	}
-	case ION_IOC_FREE:
-	{
-		struct ion_handle *handle;
-
-		handle = ion_handle_get_by_id(client, data.handle.handle);
-		if (IS_ERR(handle))
-			return PTR_ERR(handle);
-		ion_free(client, handle);
-		ion_handle_put(handle);
-		break;
-	}
-	case ION_IOC_SHARE:
-	case ION_IOC_MAP:
-	{
-		struct ion_handle *handle;
-
-		handle = ion_handle_get_by_id(client, data.handle.handle);
-		if (IS_ERR(handle))
-			return PTR_ERR(handle);
-		data.fd.fd = ion_share_dma_buf_fd(client, handle);
-		ion_handle_put(handle);
-		if (data.fd.fd < 0)
-			ret = data.fd.fd;
-		break;
-	}
-	case ION_IOC_IMPORT:
-	{
-		struct ion_handle *handle;
-
-		handle = ion_import_dma_buf(client, data.fd.fd);
-		if (IS_ERR(handle))
-			ret = PTR_ERR(handle);
-		else
-			data.handle.handle = handle->id;
-		break;
-	}
-	case ION_IOC_SYNC:
-	{
-		ret = ion_sync_for_device(client, data.fd.fd);
-		break;
-	}
-	case ION_IOC_CUSTOM:
-	{
-		if (!dev->custom_ioctl)
-			return -ENOTTY;
-		ret = dev->custom_ioctl(client, data.custom.cmd,
-						data.custom.arg);
-		break;
-	}
-	default:
-		return -ENOTTY;
-	}
-
-	if (dir & _IOC_READ) {
-		if (copy_to_user((void __user *)arg, &data, _IOC_SIZE(cmd))) {
-			if (cleanup_handle)
-				ion_free(client, cleanup_handle);
-			return -EFAULT;
-		}
-	}
-	return ret;
-}
-
-static int ion_release(struct inode *inode, struct file *file)
-{
-	struct ion_client *client = file->private_data;
-
-	pr_debug("%s: %d\n", __func__, __LINE__);
-	ion_client_destroy(client);
-	return 0;
-}
-
-static int ion_open(struct inode *inode, struct file *file)
-{
-	struct miscdevice *miscdev = file->private_data;
-	struct ion_device *dev = container_of(miscdev, struct ion_device, dev);
-	struct ion_client *client;
-	char debug_name[64];
-
-	pr_debug("%s: %d\n", __func__, __LINE__);
-	snprintf(debug_name, 64, "%u", task_pid_nr(current->group_leader));
-	client = ion_client_create(dev, debug_name);
-	if (IS_ERR(client))
-		return PTR_ERR(client);
-	file->private_data = client;
-
-	return 0;
-}
-
-static const struct file_operations ion_fops = {
-	.owner          = THIS_MODULE,
-	.open           = ion_open,
-	.release        = ion_release,
-	.unlocked_ioctl = ion_ioctl,
-	.compat_ioctl   = compat_ion_ioctl,
-};
-
-static size_t ion_debug_heap_total(struct ion_client *client,
-				   unsigned int id)
-{
-	size_t size = 0;
-	struct rb_node *n;
-
-	mutex_lock(&client->lock);
-	for (n = rb_first(&client->handles); n; n = rb_next(n)) {
-		struct ion_handle *handle = rb_entry(n,
-						     struct ion_handle,
-						     node);
-		if (handle->buffer->heap->id == id)
-			size += handle->buffer->size;
-	}
-	mutex_unlock(&client->lock);
-	return size;
-}
-
-static int ion_debug_heap_show(struct seq_file *s, void *unused)
-{
-	struct ion_heap *heap = s->private;
-	struct ion_device *dev = heap->dev;
-	struct rb_node *n;
-	size_t total_size = 0;
-	size_t total_orphaned_size = 0;
-
-	seq_printf(s, "%16s %16s %16s\n", "client", "pid", "size");
-	seq_puts(s, "----------------------------------------------------\n");
-
-	for (n = rb_first(&dev->clients); n; n = rb_next(n)) {
-		struct ion_client *client = rb_entry(n, struct ion_client,
-						     node);
-		size_t size = ion_debug_heap_total(client, heap->id);
-
-		if (!size)
-			continue;
-		if (client->task) {
-			char task_comm[TASK_COMM_LEN];
-
-			get_task_comm(task_comm, client->task);
-			seq_printf(s, "%16s %16u %16zu\n", task_comm,
-				   client->pid, size);
-		} else {
-			seq_printf(s, "%16s %16u %16zu\n", client->name,
-				   client->pid, size);
-		}
-	}
-	seq_puts(s, "----------------------------------------------------\n");
-	seq_puts(s, "orphaned allocations (info is from last known client):\n");
-	mutex_lock(&dev->buffer_lock);
-	for (n = rb_first(&dev->buffers); n; n = rb_next(n)) {
-		struct ion_buffer *buffer = rb_entry(n, struct ion_buffer,
-						     node);
-		if (buffer->heap->id != heap->id)
-			continue;
-		total_size += buffer->size;
-		if (!buffer->handle_count) {
-			seq_printf(s, "%16s %16u %16zu %d %d\n",
-				   buffer->task_comm, buffer->pid,
-				   buffer->size, buffer->kmap_cnt,
-				   atomic_read(&buffer->ref.refcount));
-			total_orphaned_size += buffer->size;
-		}
-	}
-	mutex_unlock(&dev->buffer_lock);
-	seq_puts(s, "----------------------------------------------------\n");
-	seq_printf(s, "%16s %16zu\n", "total orphaned",
-		   total_orphaned_size);
-	seq_printf(s, "%16s %16zu\n", "total ", total_size);
-	if (heap->flags & ION_HEAP_FLAG_DEFER_FREE)
-		seq_printf(s, "%16s %16zu\n", "deferred free",
-				heap->free_list_size);
-	seq_puts(s, "----------------------------------------------------\n");
-
-	if (heap->debug_show)
-		heap->debug_show(heap, s, unused);
-
-	return 0;
-}
-
-static int ion_debug_heap_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, ion_debug_heap_show, inode->i_private);
-}
-
-static const struct file_operations debug_heap_fops = {
-	.open = ion_debug_heap_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static int debug_shrink_set(void *data, u64 val)
-{
-	struct ion_heap *heap = data;
-	struct shrink_control sc;
-	int objs;
-
-	sc.gfp_mask = -1;
-	sc.nr_to_scan = val;
-
-	if (!val) {
-		objs = heap->shrinker.count_objects(&heap->shrinker, &sc);
-		sc.nr_to_scan = objs;
-	}
-
-	heap->shrinker.scan_objects(&heap->shrinker, &sc);
-	return 0;
-}
-
-static int debug_shrink_get(void *data, u64 *val)
-{
-	struct ion_heap *heap = data;
-	struct shrink_control sc;
-	int objs;
-
-	sc.gfp_mask = -1;
-	sc.nr_to_scan = 0;
-
-	objs = heap->shrinker.count_objects(&heap->shrinker, &sc);
-	*val = objs;
-	return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(debug_shrink_fops, debug_shrink_get,
-			debug_shrink_set, "%llu\n");
-
-void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap)
-{
-	struct dentry *debug_file;
-
-	if (!heap->ops->allocate || !heap->ops->free || !heap->ops->map_dma ||
-	    !heap->ops->unmap_dma)
-		pr_err("%s: can not add heap with invalid ops struct.\n",
-		       __func__);
-
-	spin_lock_init(&heap->free_lock);
-	heap->free_list_size = 0;
-
-	if (heap->flags & ION_HEAP_FLAG_DEFER_FREE)
-		ion_heap_init_deferred_free(heap);
-
-	if ((heap->flags & ION_HEAP_FLAG_DEFER_FREE) || heap->ops->shrink)
-		ion_heap_init_shrinker(heap);
-
-	heap->dev = dev;
-	down_write(&dev->lock);
-	/* use negative heap->id to reverse the priority -- when traversing
-	   the list later attempt higher id numbers first */
-	plist_node_init(&heap->node, -heap->id);
-	plist_add(&heap->node, &dev->heaps);
-	debug_file = debugfs_create_file(heap->name, 0664,
-					dev->heaps_debug_root, heap,
-					&debug_heap_fops);
-
-	if (!debug_file) {
-		char buf[256], *path;
-
-		path = dentry_path(dev->heaps_debug_root, buf, 256);
-		pr_err("Failed to create heap debugfs at %s/%s\n",
-			path, heap->name);
-	}
-
-	if (heap->shrinker.count_objects && heap->shrinker.scan_objects) {
-		char debug_name[64];
-
-		snprintf(debug_name, 64, "%s_shrink", heap->name);
-		debug_file = debugfs_create_file(
-			debug_name, 0644, dev->heaps_debug_root, heap,
-			&debug_shrink_fops);
-		if (!debug_file) {
-			char buf[256], *path;
-
-			path = dentry_path(dev->heaps_debug_root, buf, 256);
-			pr_err("Failed to create heap shrinker debugfs at %s/%s\n",
-				path, debug_name);
-		}
-	}
-
-	up_write(&dev->lock);
-}
-
-struct ion_device *ion_device_create(long (*custom_ioctl)
-				     (struct ion_client *client,
-				      unsigned int cmd,
-				      unsigned long arg))
-{
-	struct ion_device *idev;
-	int ret;
-
-	idev = kzalloc(sizeof(struct ion_device), GFP_KERNEL);
-	if (!idev)
-		return ERR_PTR(-ENOMEM);
-
-	idev->dev.minor = MISC_DYNAMIC_MINOR;
-	idev->dev.name = "ion";
-	idev->dev.fops = &ion_fops;
-	idev->dev.parent = NULL;
-	ret = misc_register(&idev->dev);
-	if (ret) {
-		pr_err("ion: failed to register misc device.\n");
-		kfree(idev);
-		return ERR_PTR(ret);
-	}
-
-	idev->debug_root = debugfs_create_dir("ion", NULL);
-	if (!idev->debug_root) {
-		pr_err("ion: failed to create debugfs root directory.\n");
-		goto debugfs_done;
-	}
-	idev->heaps_debug_root = debugfs_create_dir("heaps", idev->debug_root);
-	if (!idev->heaps_debug_root) {
-		pr_err("ion: failed to create debugfs heaps directory.\n");
-		goto debugfs_done;
-	}
-	idev->clients_debug_root = debugfs_create_dir("clients",
-						idev->debug_root);
-	if (!idev->clients_debug_root)
-		pr_err("ion: failed to create debugfs clients directory.\n");
-
-debugfs_done:
-
-	idev->custom_ioctl = custom_ioctl;
-	idev->buffers = RB_ROOT;
-	mutex_init(&idev->buffer_lock);
-	init_rwsem(&idev->lock);
-	plist_head_init(&idev->heaps);
-	idev->clients = RB_ROOT;
-	return idev;
-}
-
-void ion_device_destroy(struct ion_device *dev)
-{
-	misc_deregister(&dev->dev);
-	debugfs_remove_recursive(dev->debug_root);
-	/* XXX need to free the heaps and clients ? */
-	kfree(dev);
-}
-
-void __init ion_reserve(struct ion_platform_data *data)
-{
-	int i;
-
-	for (i = 0; i < data->nr; i++) {
-		if (data->heaps[i].size == 0)
-			continue;
-
-		if (data->heaps[i].base == 0) {
-			phys_addr_t paddr;
-
-			paddr = memblock_alloc_base(data->heaps[i].size,
-						    data->heaps[i].align,
-						    MEMBLOCK_ALLOC_ANYWHERE);
-			if (!paddr) {
-				pr_err("%s: error allocating memblock for heap %d\n",
-					__func__, i);
-				continue;
-			}
-			data->heaps[i].base = paddr;
-		} else {
-			int ret = memblock_reserve(data->heaps[i].base,
-					       data->heaps[i].size);
-			if (ret)
-				pr_err("memblock reserve of %zx@%lx failed\n",
-				       data->heaps[i].size,
-				       data->heaps[i].base);
-		}
-		pr_info("%s: %s reserved base %lx size %zu\n", __func__,
-			data->heaps[i].name,
-			data->heaps[i].base,
-			data->heaps[i].size);
-	}
-}
diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
deleted file mode 100644
index 443db8459a9e..000000000000
--- a/drivers/staging/android/ion/ion.h
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * drivers/staging/android/ion/ion.h
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _LINUX_ION_H
-#define _LINUX_ION_H
-
-#include <linux/types.h>
-
-#include "../uapi/ion.h"
-
-struct ion_handle;
-struct ion_device;
-struct ion_heap;
-struct ion_mapper;
-struct ion_client;
-struct ion_buffer;
-
-/* This should be removed some day when phys_addr_t's are fully
-   plumbed in the kernel, and all instances of ion_phys_addr_t should
-   be converted to phys_addr_t.  For the time being many kernel interfaces
-   do not accept phys_addr_t's that would have to */
-#define ion_phys_addr_t unsigned long
-
-/**
- * struct ion_platform_heap - defines a heap in the given platform
- * @type:	type of the heap from ion_heap_type enum
- * @id:		unique identifier for heap.  When allocating higher numbers
- *		will be allocated from first.  At allocation these are passed
- *		as a bit mask and therefore can not exceed ION_NUM_HEAP_IDS.
- * @name:	used for debug purposes
- * @base:	base address of heap in physical memory if applicable
- * @size:	size of the heap in bytes if applicable
- * @align:	required alignment in physical memory if applicable
- * @priv:	private info passed from the board file
- *
- * Provided by the board file.
- */
-struct ion_platform_heap {
-	enum ion_heap_type type;
-	unsigned int id;
-	const char *name;
-	ion_phys_addr_t base;
-	size_t size;
-	ion_phys_addr_t align;
-	void *priv;
-};
-
-/**
- * struct ion_platform_data - array of platform heaps passed from board file
- * @nr:		number of structures in the array
- * @heaps:	array of platform_heap structions
- *
- * Provided by the board file in the form of platform data to a platform device.
- */
-struct ion_platform_data {
-	int nr;
-	struct ion_platform_heap *heaps;
-};
-
-/**
- * ion_reserve() - reserve memory for ion heaps if applicable
- * @data:	platform data specifying starting physical address and
- *		size
- *
- * Calls memblock reserve to set aside memory for heaps that are
- * located at specific memory addresses or of specific sizes not
- * managed by the kernel
- */
-void ion_reserve(struct ion_platform_data *data);
-
-/**
- * ion_client_create() -  allocate a client and returns it
- * @dev:		the global ion device
- * @name:		used for debugging
- */
-struct ion_client *ion_client_create(struct ion_device *dev,
-				     const char *name);
-
-/**
- * ion_client_destroy() -  free's a client and all it's handles
- * @client:	the client
- *
- * Free the provided client and all it's resources including
- * any handles it is holding.
- */
-void ion_client_destroy(struct ion_client *client);
-
-/**
- * ion_alloc - allocate ion memory
- * @client:		the client
- * @len:		size of the allocation
- * @align:		requested allocation alignment, lots of hardware blocks
- *			have alignment requirements of some kind
- * @heap_id_mask:	mask of heaps to allocate from, if multiple bits are set
- *			heaps will be tried in order from highest to lowest
- *			id
- * @flags:		heap flags, the low 16 bits are consumed by ion, the
- *			high 16 bits are passed on to the respective heap and
- *			can be heap custom
- *
- * Allocate memory in one of the heaps provided in heap mask and return
- * an opaque handle to it.
- */
-struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
-			     size_t align, unsigned int heap_id_mask,
-			     unsigned int flags);
-
-/**
- * ion_free - free a handle
- * @client:	the client
- * @handle:	the handle to free
- *
- * Free the provided handle.
- */
-void ion_free(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_phys - returns the physical address and len of a handle
- * @client:	the client
- * @handle:	the handle
- * @addr:	a pointer to put the address in
- * @len:	a pointer to put the length in
- *
- * This function queries the heap for a particular handle to get the
- * handle's physical address.  It't output is only correct if
- * a heap returns physically contiguous memory -- in other cases
- * this api should not be implemented -- ion_sg_table should be used
- * instead.  Returns -EINVAL if the handle is invalid.  This has
- * no implications on the reference counting of the handle --
- * the returned value may not be valid if the caller is not
- * holding a reference.
- */
-int ion_phys(struct ion_client *client, struct ion_handle *handle,
-	     ion_phys_addr_t *addr, size_t *len);
-
-/**
- * ion_map_dma - return an sg_table describing a handle
- * @client:	the client
- * @handle:	the handle
- *
- * This function returns the sg_table describing
- * a particular ion handle.
- */
-struct sg_table *ion_sg_table(struct ion_client *client,
-			      struct ion_handle *handle);
-
-/**
- * ion_map_kernel - create mapping for the given handle
- * @client:	the client
- * @handle:	handle to map
- *
- * Map the given handle into the kernel and return a kernel address that
- * can be used to access this address.
- */
-void *ion_map_kernel(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_unmap_kernel() - destroy a kernel mapping for a handle
- * @client:	the client
- * @handle:	handle to unmap
- */
-void ion_unmap_kernel(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_share_dma_buf() - share buffer as dma-buf
- * @client:	the client
- * @handle:	the handle
- */
-struct dma_buf *ion_share_dma_buf(struct ion_client *client,
-						struct ion_handle *handle);
-
-/**
- * ion_share_dma_buf_fd() - given an ion client, create a dma-buf fd
- * @client:	the client
- * @handle:	the handle
- */
-int ion_share_dma_buf_fd(struct ion_client *client, struct ion_handle *handle);
-
-/**
- * ion_import_dma_buf() - given an dma-buf fd from the ion exporter get handle
- * @client:	the client
- * @fd:		the dma-buf fd
- *
- * Given an dma-buf fd that was allocated through ion via ion_share_dma_buf,
- * import that fd and return a handle representing it.  If a dma-buf from
- * another exporter is passed in this function will return ERR_PTR(-EINVAL)
- */
-struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd);
-
-#endif /* _LINUX_ION_H */
diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
deleted file mode 100644
index 9156d8238c97..000000000000
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * drivers/staging/android/ion/ion_carveout_heap.c
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-#include <linux/spinlock.h>
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/genalloc.h>
-#include <linux/io.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include "ion.h"
-#include "ion_priv.h"
-
-struct ion_carveout_heap {
-	struct ion_heap heap;
-	struct gen_pool *pool;
-	ion_phys_addr_t base;
-};
-
-ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap,
-				      unsigned long size,
-				      unsigned long align)
-{
-	struct ion_carveout_heap *carveout_heap =
-		container_of(heap, struct ion_carveout_heap, heap);
-	unsigned long offset = gen_pool_alloc(carveout_heap->pool, size);
-
-	if (!offset)
-		return ION_CARVEOUT_ALLOCATE_FAIL;
-
-	return offset;
-}
-
-void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr,
-		       unsigned long size)
-{
-	struct ion_carveout_heap *carveout_heap =
-		container_of(heap, struct ion_carveout_heap, heap);
-
-	if (addr == ION_CARVEOUT_ALLOCATE_FAIL)
-		return;
-	gen_pool_free(carveout_heap->pool, addr, size);
-}
-
-static int ion_carveout_heap_phys(struct ion_heap *heap,
-				  struct ion_buffer *buffer,
-				  ion_phys_addr_t *addr, size_t *len)
-{
-	struct sg_table *table = buffer->priv_virt;
-	struct page *page = sg_page(table->sgl);
-	ion_phys_addr_t paddr = PFN_PHYS(page_to_pfn(page));
-
-	*addr = paddr;
-	*len = buffer->size;
-	return 0;
-}
-
-static int ion_carveout_heap_allocate(struct ion_heap *heap,
-				      struct ion_buffer *buffer,
-				      unsigned long size, unsigned long align,
-				      unsigned long flags)
-{
-	struct sg_table *table;
-	ion_phys_addr_t paddr;
-	int ret;
-
-	if (align > PAGE_SIZE)
-		return -EINVAL;
-
-	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
-	if (!table)
-		return -ENOMEM;
-	ret = sg_alloc_table(table, 1, GFP_KERNEL);
-	if (ret)
-		goto err_free;
-
-	paddr = ion_carveout_allocate(heap, size, align);
-	if (paddr == ION_CARVEOUT_ALLOCATE_FAIL) {
-		ret = -ENOMEM;
-		goto err_free_table;
-	}
-
-	sg_set_page(table->sgl, pfn_to_page(PFN_DOWN(paddr)), size, 0);
-	buffer->priv_virt = table;
-
-	return 0;
-
-err_free_table:
-	sg_free_table(table);
-err_free:
-	kfree(table);
-	return ret;
-}
-
-static void ion_carveout_heap_free(struct ion_buffer *buffer)
-{
-	struct ion_heap *heap = buffer->heap;
-	struct sg_table *table = buffer->priv_virt;
-	struct page *page = sg_page(table->sgl);
-	ion_phys_addr_t paddr = PFN_PHYS(page_to_pfn(page));
-
-	ion_heap_buffer_zero(buffer);
-
-	if (ion_buffer_cached(buffer))
-		dma_sync_sg_for_device(NULL, table->sgl, table->nents,
-							DMA_BIDIRECTIONAL);
-
-	ion_carveout_free(heap, paddr, buffer->size);
-	sg_free_table(table);
-	kfree(table);
-}
-
-static struct sg_table *ion_carveout_heap_map_dma(struct ion_heap *heap,
-						  struct ion_buffer *buffer)
-{
-	return buffer->priv_virt;
-}
-
-static void ion_carveout_heap_unmap_dma(struct ion_heap *heap,
-					struct ion_buffer *buffer)
-{
-}
-
-static struct ion_heap_ops carveout_heap_ops = {
-	.allocate = ion_carveout_heap_allocate,
-	.free = ion_carveout_heap_free,
-	.phys = ion_carveout_heap_phys,
-	.map_dma = ion_carveout_heap_map_dma,
-	.unmap_dma = ion_carveout_heap_unmap_dma,
-	.map_user = ion_heap_map_user,
-	.map_kernel = ion_heap_map_kernel,
-	.unmap_kernel = ion_heap_unmap_kernel,
-};
-
-struct ion_heap *ion_carveout_heap_create(struct ion_platform_heap *heap_data)
-{
-	struct ion_carveout_heap *carveout_heap;
-	int ret;
-
-	struct page *page;
-	size_t size;
-
-	page = pfn_to_page(PFN_DOWN(heap_data->base));
-	size = heap_data->size;
-
-	ion_pages_sync_for_device(NULL, page, size, DMA_BIDIRECTIONAL);
-
-	ret = ion_heap_pages_zero(page, size, pgprot_writecombine(PAGE_KERNEL));
-	if (ret)
-		return ERR_PTR(ret);
-
-	carveout_heap = kzalloc(sizeof(struct ion_carveout_heap), GFP_KERNEL);
-	if (!carveout_heap)
-		return ERR_PTR(-ENOMEM);
-
-	carveout_heap->pool = gen_pool_create(12, -1);
-	if (!carveout_heap->pool) {
-		kfree(carveout_heap);
-		return ERR_PTR(-ENOMEM);
-	}
-	carveout_heap->base = heap_data->base;
-	gen_pool_add(carveout_heap->pool, carveout_heap->base, heap_data->size,
-		     -1);
-	carveout_heap->heap.ops = &carveout_heap_ops;
-	carveout_heap->heap.type = ION_HEAP_TYPE_CARVEOUT;
-	carveout_heap->heap.flags = ION_HEAP_FLAG_DEFER_FREE;
-
-	return &carveout_heap->heap;
-}
-
-void ion_carveout_heap_destroy(struct ion_heap *heap)
-{
-	struct ion_carveout_heap *carveout_heap =
-	     container_of(heap, struct  ion_carveout_heap, heap);
-
-	gen_pool_destroy(carveout_heap->pool);
-	kfree(carveout_heap);
-	carveout_heap = NULL;
-}
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
deleted file mode 100644
index 195c41d7bd53..000000000000
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * drivers/staging/android/ion/ion_chunk_heap.c
- *
- * Copyright (C) 2012 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/genalloc.h>
-#include <linux/io.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include "ion.h"
-#include "ion_priv.h"
-
-struct ion_chunk_heap {
-	struct ion_heap heap;
-	struct gen_pool *pool;
-	ion_phys_addr_t base;
-	unsigned long chunk_size;
-	unsigned long size;
-	unsigned long allocated;
-};
-
-static int ion_chunk_heap_allocate(struct ion_heap *heap,
-				      struct ion_buffer *buffer,
-				      unsigned long size, unsigned long align,
-				      unsigned long flags)
-{
-	struct ion_chunk_heap *chunk_heap =
-		container_of(heap, struct ion_chunk_heap, heap);
-	struct sg_table *table;
-	struct scatterlist *sg;
-	int ret, i;
-	unsigned long num_chunks;
-	unsigned long allocated_size;
-
-	if (align > chunk_heap->chunk_size)
-		return -EINVAL;
-
-	allocated_size = ALIGN(size, chunk_heap->chunk_size);
-	num_chunks = allocated_size / chunk_heap->chunk_size;
-
-	if (allocated_size > chunk_heap->size - chunk_heap->allocated)
-		return -ENOMEM;
-
-	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
-	if (!table)
-		return -ENOMEM;
-	ret = sg_alloc_table(table, num_chunks, GFP_KERNEL);
-	if (ret) {
-		kfree(table);
-		return ret;
-	}
-
-	sg = table->sgl;
-	for (i = 0; i < num_chunks; i++) {
-		unsigned long paddr = gen_pool_alloc(chunk_heap->pool,
-						     chunk_heap->chunk_size);
-		if (!paddr)
-			goto err;
-		sg_set_page(sg, pfn_to_page(PFN_DOWN(paddr)),
-				chunk_heap->chunk_size, 0);
-		sg = sg_next(sg);
-	}
-
-	buffer->priv_virt = table;
-	chunk_heap->allocated += allocated_size;
-	return 0;
-err:
-	sg = table->sgl;
-	for (i -= 1; i >= 0; i--) {
-		gen_pool_free(chunk_heap->pool, sg_phys(sg) & PAGE_MASK,
-			      sg->length);
-		sg = sg_next(sg);
-	}
-	sg_free_table(table);
-	kfree(table);
-	return -ENOMEM;
-}
-
-static void ion_chunk_heap_free(struct ion_buffer *buffer)
-{
-	struct ion_heap *heap = buffer->heap;
-	struct ion_chunk_heap *chunk_heap =
-		container_of(heap, struct ion_chunk_heap, heap);
-	struct sg_table *table = buffer->priv_virt;
-	struct scatterlist *sg;
-	int i;
-	unsigned long allocated_size;
-
-	allocated_size = ALIGN(buffer->size, chunk_heap->chunk_size);
-
-	ion_heap_buffer_zero(buffer);
-
-	if (ion_buffer_cached(buffer))
-		dma_sync_sg_for_device(NULL, table->sgl, table->nents,
-							DMA_BIDIRECTIONAL);
-
-	for_each_sg(table->sgl, sg, table->nents, i) {
-		gen_pool_free(chunk_heap->pool, sg_phys(sg) & PAGE_MASK,
-			      sg->length);
-	}
-	chunk_heap->allocated -= allocated_size;
-	sg_free_table(table);
-	kfree(table);
-}
-
-static struct sg_table *ion_chunk_heap_map_dma(struct ion_heap *heap,
-					       struct ion_buffer *buffer)
-{
-	return buffer->priv_virt;
-}
-
-static void ion_chunk_heap_unmap_dma(struct ion_heap *heap,
-				     struct ion_buffer *buffer)
-{
-}
-
-static struct ion_heap_ops chunk_heap_ops = {
-	.allocate = ion_chunk_heap_allocate,
-	.free = ion_chunk_heap_free,
-	.map_dma = ion_chunk_heap_map_dma,
-	.unmap_dma = ion_chunk_heap_unmap_dma,
-	.map_user = ion_heap_map_user,
-	.map_kernel = ion_heap_map_kernel,
-	.unmap_kernel = ion_heap_unmap_kernel,
-};
-
-struct ion_heap *ion_chunk_heap_create(struct ion_platform_heap *heap_data)
-{
-	struct ion_chunk_heap *chunk_heap;
-	int ret;
-	struct page *page;
-	size_t size;
-
-	page = pfn_to_page(PFN_DOWN(heap_data->base));
-	size = heap_data->size;
-
-	ion_pages_sync_for_device(NULL, page, size, DMA_BIDIRECTIONAL);
-
-	ret = ion_heap_pages_zero(page, size, pgprot_writecombine(PAGE_KERNEL));
-	if (ret)
-		return ERR_PTR(ret);
-
-	chunk_heap = kzalloc(sizeof(struct ion_chunk_heap), GFP_KERNEL);
-	if (!chunk_heap)
-		return ERR_PTR(-ENOMEM);
-
-	chunk_heap->chunk_size = (unsigned long)heap_data->priv;
-	chunk_heap->pool = gen_pool_create(get_order(chunk_heap->chunk_size) +
-					   PAGE_SHIFT, -1);
-	if (!chunk_heap->pool) {
-		ret = -ENOMEM;
-		goto error_gen_pool_create;
-	}
-	chunk_heap->base = heap_data->base;
-	chunk_heap->size = heap_data->size;
-	chunk_heap->allocated = 0;
-
-	gen_pool_add(chunk_heap->pool, chunk_heap->base, heap_data->size, -1);
-	chunk_heap->heap.ops = &chunk_heap_ops;
-	chunk_heap->heap.type = ION_HEAP_TYPE_CHUNK;
-	chunk_heap->heap.flags = ION_HEAP_FLAG_DEFER_FREE;
-	pr_debug("%s: base %lu size %zu align %ld\n", __func__,
-		chunk_heap->base, heap_data->size, heap_data->align);
-
-	return &chunk_heap->heap;
-
-error_gen_pool_create:
-	kfree(chunk_heap);
-	return ERR_PTR(ret);
-}
-
-void ion_chunk_heap_destroy(struct ion_heap *heap)
-{
-	struct ion_chunk_heap *chunk_heap =
-	     container_of(heap, struct  ion_chunk_heap, heap);
-
-	gen_pool_destroy(chunk_heap->pool);
-	kfree(chunk_heap);
-	chunk_heap = NULL;
-}
diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c
deleted file mode 100644
index 0b2448c32495..000000000000
--- a/drivers/staging/android/ion/ion_cma_heap.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * drivers/staging/android/ion/ion_cma_heap.c
- *
- * Copyright (C) Linaro 2012
- * Author: <benjamin.gaignard@linaro.org> for ST-Ericsson.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/device.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/dma-mapping.h>
-
-#include "ion.h"
-#include "ion_priv.h"
-
-#define ION_CMA_ALLOCATE_FAILED -1
-
-struct ion_cma_heap {
-	struct ion_heap heap;
-	struct device *dev;
-};
-
-#define to_cma_heap(x) container_of(x, struct ion_cma_heap, heap)
-
-struct ion_cma_buffer_info {
-	void *cpu_addr;
-	dma_addr_t handle;
-	struct sg_table *table;
-};
-
-
-/* ION CMA heap operations functions */
-static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer,
-			    unsigned long len, unsigned long align,
-			    unsigned long flags)
-{
-	struct ion_cma_heap *cma_heap = to_cma_heap(heap);
-	struct device *dev = cma_heap->dev;
-	struct ion_cma_buffer_info *info;
-
-	dev_dbg(dev, "Request buffer allocation len %ld\n", len);
-
-	if (buffer->flags & ION_FLAG_CACHED)
-		return -EINVAL;
-
-	if (align > PAGE_SIZE)
-		return -EINVAL;
-
-	info = kzalloc(sizeof(struct ion_cma_buffer_info), GFP_KERNEL);
-	if (!info)
-		return ION_CMA_ALLOCATE_FAILED;
-
-	info->cpu_addr = dma_alloc_coherent(dev, len, &(info->handle),
-						GFP_HIGHUSER | __GFP_ZERO);
-
-	if (!info->cpu_addr) {
-		dev_err(dev, "Fail to allocate buffer\n");
-		goto err;
-	}
-
-	info->table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
-	if (!info->table)
-		goto free_mem;
-
-	if (dma_get_sgtable(dev, info->table, info->cpu_addr, info->handle,
-			    len))
-		goto free_table;
-	/* keep this for memory release */
-	buffer->priv_virt = info;
-	dev_dbg(dev, "Allocate buffer %p\n", buffer);
-	return 0;
-
-free_table:
-	kfree(info->table);
-free_mem:
-	dma_free_coherent(dev, len, info->cpu_addr, info->handle);
-err:
-	kfree(info);
-	return ION_CMA_ALLOCATE_FAILED;
-}
-
-static void ion_cma_free(struct ion_buffer *buffer)
-{
-	struct ion_cma_heap *cma_heap = to_cma_heap(buffer->heap);
-	struct device *dev = cma_heap->dev;
-	struct ion_cma_buffer_info *info = buffer->priv_virt;
-
-	dev_dbg(dev, "Release buffer %p\n", buffer);
-	/* release memory */
-	dma_free_coherent(dev, buffer->size, info->cpu_addr, info->handle);
-	/* release sg table */
-	sg_free_table(info->table);
-	kfree(info->table);
-	kfree(info);
-}
-
-/* return physical address in addr */
-static int ion_cma_phys(struct ion_heap *heap, struct ion_buffer *buffer,
-			ion_phys_addr_t *addr, size_t *len)
-{
-	struct ion_cma_heap *cma_heap = to_cma_heap(buffer->heap);
-	struct device *dev = cma_heap->dev;
-	struct ion_cma_buffer_info *info = buffer->priv_virt;
-
-	dev_dbg(dev, "Return buffer %p physical address %pa\n", buffer,
-		&info->handle);
-
-	*addr = info->handle;
-	*len = buffer->size;
-
-	return 0;
-}
-
-static struct sg_table *ion_cma_heap_map_dma(struct ion_heap *heap,
-					     struct ion_buffer *buffer)
-{
-	struct ion_cma_buffer_info *info = buffer->priv_virt;
-
-	return info->table;
-}
-
-static void ion_cma_heap_unmap_dma(struct ion_heap *heap,
-				   struct ion_buffer *buffer)
-{
-}
-
-static int ion_cma_mmap(struct ion_heap *mapper, struct ion_buffer *buffer,
-			struct vm_area_struct *vma)
-{
-	struct ion_cma_heap *cma_heap = to_cma_heap(buffer->heap);
-	struct device *dev = cma_heap->dev;
-	struct ion_cma_buffer_info *info = buffer->priv_virt;
-
-	return dma_mmap_coherent(dev, vma, info->cpu_addr, info->handle,
-				 buffer->size);
-}
-
-static void *ion_cma_map_kernel(struct ion_heap *heap,
-				struct ion_buffer *buffer)
-{
-	struct ion_cma_buffer_info *info = buffer->priv_virt;
-	/* kernel memory mapping has been done at allocation time */
-	return info->cpu_addr;
-}
-
-static void ion_cma_unmap_kernel(struct ion_heap *heap,
-					struct ion_buffer *buffer)
-{
-}
-
-static struct ion_heap_ops ion_cma_ops = {
-	.allocate = ion_cma_allocate,
-	.free = ion_cma_free,
-	.map_dma = ion_cma_heap_map_dma,
-	.unmap_dma = ion_cma_heap_unmap_dma,
-	.phys = ion_cma_phys,
-	.map_user = ion_cma_mmap,
-	.map_kernel = ion_cma_map_kernel,
-	.unmap_kernel = ion_cma_unmap_kernel,
-};
-
-struct ion_heap *ion_cma_heap_create(struct ion_platform_heap *data)
-{
-	struct ion_cma_heap *cma_heap;
-
-	cma_heap = kzalloc(sizeof(struct ion_cma_heap), GFP_KERNEL);
-
-	if (!cma_heap)
-		return ERR_PTR(-ENOMEM);
-
-	cma_heap->heap.ops = &ion_cma_ops;
-	/* get device from private heaps data, later it will be
-	 * used to make the link with reserved CMA memory */
-	cma_heap->dev = data->priv;
-	cma_heap->heap.type = ION_HEAP_TYPE_DMA;
-	return &cma_heap->heap;
-}
-
-void ion_cma_heap_destroy(struct ion_heap *heap)
-{
-	struct ion_cma_heap *cma_heap = to_cma_heap(heap);
-
-	kfree(cma_heap);
-}
diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c
deleted file mode 100644
index 5678870bff48..000000000000
--- a/drivers/staging/android/ion/ion_dummy_driver.c
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * drivers/gpu/ion/ion_dummy_driver.c
- *
- * Copyright (C) 2013 Linaro, Inc
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
-#include <linux/sizes.h>
-#include <linux/io.h>
-#include "ion.h"
-#include "ion_priv.h"
-
-static struct ion_device *idev;
-static struct ion_heap **heaps;
-
-static void *carveout_ptr;
-static void *chunk_ptr;
-
-static struct ion_platform_heap dummy_heaps[] = {
-		{
-			.id	= ION_HEAP_TYPE_SYSTEM,
-			.type	= ION_HEAP_TYPE_SYSTEM,
-			.name	= "system",
-		},
-		{
-			.id	= ION_HEAP_TYPE_SYSTEM_CONTIG,
-			.type	= ION_HEAP_TYPE_SYSTEM_CONTIG,
-			.name	= "system contig",
-		},
-		{
-			.id	= ION_HEAP_TYPE_CARVEOUT,
-			.type	= ION_HEAP_TYPE_CARVEOUT,
-			.name	= "carveout",
-			.size	= SZ_4M,
-		},
-		{
-			.id	= ION_HEAP_TYPE_CHUNK,
-			.type	= ION_HEAP_TYPE_CHUNK,
-			.name	= "chunk",
-			.size	= SZ_4M,
-			.align	= SZ_16K,
-			.priv	= (void *)(SZ_16K),
-		},
-};
-
-static struct ion_platform_data dummy_ion_pdata = {
-	.nr = ARRAY_SIZE(dummy_heaps),
-	.heaps = dummy_heaps,
-};
-
-static int __init ion_dummy_init(void)
-{
-	int i, err;
-
-	idev = ion_device_create(NULL);
-	heaps = kcalloc(dummy_ion_pdata.nr, sizeof(struct ion_heap *),
-			GFP_KERNEL);
-	if (!heaps)
-		return -ENOMEM;
-
-
-	/* Allocate a dummy carveout heap */
-	carveout_ptr = alloc_pages_exact(
-				dummy_heaps[ION_HEAP_TYPE_CARVEOUT].size,
-				GFP_KERNEL);
-	if (carveout_ptr)
-		dummy_heaps[ION_HEAP_TYPE_CARVEOUT].base =
-						virt_to_phys(carveout_ptr);
-	else
-		pr_err("ion_dummy: Could not allocate carveout\n");
-
-	/* Allocate a dummy chunk heap */
-	chunk_ptr = alloc_pages_exact(
-				dummy_heaps[ION_HEAP_TYPE_CHUNK].size,
-				GFP_KERNEL);
-	if (chunk_ptr)
-		dummy_heaps[ION_HEAP_TYPE_CHUNK].base = virt_to_phys(chunk_ptr);
-	else
-		pr_err("ion_dummy: Could not allocate chunk\n");
-
-	for (i = 0; i < dummy_ion_pdata.nr; i++) {
-		struct ion_platform_heap *heap_data = &dummy_ion_pdata.heaps[i];
-
-		if (heap_data->type == ION_HEAP_TYPE_CARVEOUT &&
-							!heap_data->base)
-			continue;
-
-		if (heap_data->type == ION_HEAP_TYPE_CHUNK && !heap_data->base)
-			continue;
-
-		heaps[i] = ion_heap_create(heap_data);
-		if (IS_ERR_OR_NULL(heaps[i])) {
-			err = PTR_ERR(heaps[i]);
-			goto err;
-		}
-		ion_device_add_heap(idev, heaps[i]);
-	}
-	return 0;
-err:
-	for (i = 0; i < dummy_ion_pdata.nr; ++i)
-		ion_heap_destroy(heaps[i]);
-	kfree(heaps);
-
-	if (carveout_ptr) {
-		free_pages_exact(carveout_ptr,
-				dummy_heaps[ION_HEAP_TYPE_CARVEOUT].size);
-		carveout_ptr = NULL;
-	}
-	if (chunk_ptr) {
-		free_pages_exact(chunk_ptr,
-				dummy_heaps[ION_HEAP_TYPE_CHUNK].size);
-		chunk_ptr = NULL;
-	}
-	return err;
-}
-device_initcall(ion_dummy_init);
-
-static void __exit ion_dummy_exit(void)
-{
-	int i;
-
-	ion_device_destroy(idev);
-
-	for (i = 0; i < dummy_ion_pdata.nr; i++)
-		ion_heap_destroy(heaps[i]);
-	kfree(heaps);
-
-	if (carveout_ptr) {
-		free_pages_exact(carveout_ptr,
-				dummy_heaps[ION_HEAP_TYPE_CARVEOUT].size);
-		carveout_ptr = NULL;
-	}
-	if (chunk_ptr) {
-		free_pages_exact(chunk_ptr,
-				dummy_heaps[ION_HEAP_TYPE_CHUNK].size);
-		chunk_ptr = NULL;
-	}
-}
-__exitcall(ion_dummy_exit);
diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c
deleted file mode 100644
index fd13d05b538a..000000000000
--- a/drivers/staging/android/ion/ion_heap.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * drivers/staging/android/ion/ion_heap.c
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/err.h>
-#include <linux/freezer.h>
-#include <linux/kthread.h>
-#include <linux/mm.h>
-#include <linux/rtmutex.h>
-#include <linux/sched.h>
-#include <linux/scatterlist.h>
-#include <linux/vmalloc.h>
-#include "ion.h"
-#include "ion_priv.h"
-
-void *ion_heap_map_kernel(struct ion_heap *heap,
-			  struct ion_buffer *buffer)
-{
-	struct scatterlist *sg;
-	int i, j;
-	void *vaddr;
-	pgprot_t pgprot;
-	struct sg_table *table = buffer->sg_table;
-	int npages = PAGE_ALIGN(buffer->size) / PAGE_SIZE;
-	struct page **pages = vmalloc(sizeof(struct page *) * npages);
-	struct page **tmp = pages;
-
-	if (!pages)
-		return NULL;
-
-	if (buffer->flags & ION_FLAG_CACHED)
-		pgprot = PAGE_KERNEL;
-	else
-		pgprot = pgprot_writecombine(PAGE_KERNEL);
-
-	for_each_sg(table->sgl, sg, table->nents, i) {
-		int npages_this_entry = PAGE_ALIGN(sg->length) / PAGE_SIZE;
-		struct page *page = sg_page(sg);
-
-		BUG_ON(i >= npages);
-		for (j = 0; j < npages_this_entry; j++)
-			*(tmp++) = page++;
-	}
-	vaddr = vmap(pages, npages, VM_MAP, pgprot);
-	vfree(pages);
-
-	if (vaddr == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	return vaddr;
-}
-
-void ion_heap_unmap_kernel(struct ion_heap *heap,
-			   struct ion_buffer *buffer)
-{
-	vunmap(buffer->vaddr);
-}
-
-int ion_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer,
-		      struct vm_area_struct *vma)
-{
-	struct sg_table *table = buffer->sg_table;
-	unsigned long addr = vma->vm_start;
-	unsigned long offset = vma->vm_pgoff * PAGE_SIZE;
-	struct scatterlist *sg;
-	int i;
-	int ret;
-
-	for_each_sg(table->sgl, sg, table->nents, i) {
-		struct page *page = sg_page(sg);
-		unsigned long remainder = vma->vm_end - addr;
-		unsigned long len = sg->length;
-
-		if (offset >= sg->length) {
-			offset -= sg->length;
-			continue;
-		} else if (offset) {
-			page += offset / PAGE_SIZE;
-			len = sg->length - offset;
-			offset = 0;
-		}
-		len = min(len, remainder);
-		ret = remap_pfn_range(vma, addr, page_to_pfn(page), len,
-				vma->vm_page_prot);
-		if (ret)
-			return ret;
-		addr += len;
-		if (addr >= vma->vm_end)
-			return 0;
-	}
-	return 0;
-}
-
-static int ion_heap_clear_pages(struct page **pages, int num, pgprot_t pgprot)
-{
-	void *addr = vm_map_ram(pages, num, -1, pgprot);
-
-	if (!addr)
-		return -ENOMEM;
-	memset(addr, 0, PAGE_SIZE * num);
-	vm_unmap_ram(addr, num);
-
-	return 0;
-}
-
-static int ion_heap_sglist_zero(struct scatterlist *sgl, unsigned int nents,
-						pgprot_t pgprot)
-{
-	int p = 0;
-	int ret = 0;
-	struct sg_page_iter piter;
-	struct page *pages[32];
-
-	for_each_sg_page(sgl, &piter, nents, 0) {
-		pages[p++] = sg_page_iter_page(&piter);
-		if (p == ARRAY_SIZE(pages)) {
-			ret = ion_heap_clear_pages(pages, p, pgprot);
-			if (ret)
-				return ret;
-			p = 0;
-		}
-	}
-	if (p)
-		ret = ion_heap_clear_pages(pages, p, pgprot);
-
-	return ret;
-}
-
-int ion_heap_buffer_zero(struct ion_buffer *buffer)
-{
-	struct sg_table *table = buffer->sg_table;
-	pgprot_t pgprot;
-
-	if (buffer->flags & ION_FLAG_CACHED)
-		pgprot = PAGE_KERNEL;
-	else
-		pgprot = pgprot_writecombine(PAGE_KERNEL);
-
-	return ion_heap_sglist_zero(table->sgl, table->nents, pgprot);
-}
-
-int ion_heap_pages_zero(struct page *page, size_t size, pgprot_t pgprot)
-{
-	struct scatterlist sg;
-
-	sg_init_table(&sg, 1);
-	sg_set_page(&sg, page, size, 0);
-	return ion_heap_sglist_zero(&sg, 1, pgprot);
-}
-
-void ion_heap_freelist_add(struct ion_heap *heap, struct ion_buffer *buffer)
-{
-	spin_lock(&heap->free_lock);
-	list_add(&buffer->list, &heap->free_list);
-	heap->free_list_size += buffer->size;
-	spin_unlock(&heap->free_lock);
-	wake_up(&heap->waitqueue);
-}
-
-size_t ion_heap_freelist_size(struct ion_heap *heap)
-{
-	size_t size;
-
-	spin_lock(&heap->free_lock);
-	size = heap->free_list_size;
-	spin_unlock(&heap->free_lock);
-
-	return size;
-}
-
-static size_t _ion_heap_freelist_drain(struct ion_heap *heap, size_t size,
-				bool skip_pools)
-{
-	struct ion_buffer *buffer;
-	size_t total_drained = 0;
-
-	if (ion_heap_freelist_size(heap) == 0)
-		return 0;
-
-	spin_lock(&heap->free_lock);
-	if (size == 0)
-		size = heap->free_list_size;
-
-	while (!list_empty(&heap->free_list)) {
-		if (total_drained >= size)
-			break;
-		buffer = list_first_entry(&heap->free_list, struct ion_buffer,
-					  list);
-		list_del(&buffer->list);
-		heap->free_list_size -= buffer->size;
-		if (skip_pools)
-			buffer->private_flags |= ION_PRIV_FLAG_SHRINKER_FREE;
-		total_drained += buffer->size;
-		spin_unlock(&heap->free_lock);
-		ion_buffer_destroy(buffer);
-		spin_lock(&heap->free_lock);
-	}
-	spin_unlock(&heap->free_lock);
-
-	return total_drained;
-}
-
-size_t ion_heap_freelist_drain(struct ion_heap *heap, size_t size)
-{
-	return _ion_heap_freelist_drain(heap, size, false);
-}
-
-size_t ion_heap_freelist_shrink(struct ion_heap *heap, size_t size)
-{
-	return _ion_heap_freelist_drain(heap, size, true);
-}
-
-static int ion_heap_deferred_free(void *data)
-{
-	struct ion_heap *heap = data;
-
-	while (true) {
-		struct ion_buffer *buffer;
-
-		wait_event_freezable(heap->waitqueue,
-				     ion_heap_freelist_size(heap) > 0);
-
-		spin_lock(&heap->free_lock);
-		if (list_empty(&heap->free_list)) {
-			spin_unlock(&heap->free_lock);
-			continue;
-		}
-		buffer = list_first_entry(&heap->free_list, struct ion_buffer,
-					  list);
-		list_del(&buffer->list);
-		heap->free_list_size -= buffer->size;
-		spin_unlock(&heap->free_lock);
-		ion_buffer_destroy(buffer);
-	}
-
-	return 0;
-}
-
-int ion_heap_init_deferred_free(struct ion_heap *heap)
-{
-	struct sched_param param = { .sched_priority = 0 };
-
-	INIT_LIST_HEAD(&heap->free_list);
-	init_waitqueue_head(&heap->waitqueue);
-	heap->task = kthread_run(ion_heap_deferred_free, heap,
-				 "%s", heap->name);
-	if (IS_ERR(heap->task)) {
-		pr_err("%s: creating thread for deferred free failed\n",
-		       __func__);
-		return PTR_ERR_OR_ZERO(heap->task);
-	}
-	sched_setscheduler(heap->task, SCHED_IDLE, &param);
-	return 0;
-}
-
-static unsigned long ion_heap_shrink_count(struct shrinker *shrinker,
-						struct shrink_control *sc)
-{
-	struct ion_heap *heap = container_of(shrinker, struct ion_heap,
-					     shrinker);
-	int total = 0;
-
-	total = ion_heap_freelist_size(heap) / PAGE_SIZE;
-	if (heap->ops->shrink)
-		total += heap->ops->shrink(heap, sc->gfp_mask, 0);
-	return total;
-}
-
-static unsigned long ion_heap_shrink_scan(struct shrinker *shrinker,
-						struct shrink_control *sc)
-{
-	struct ion_heap *heap = container_of(shrinker, struct ion_heap,
-					     shrinker);
-	int freed = 0;
-	int to_scan = sc->nr_to_scan;
-
-	if (to_scan == 0)
-		return 0;
-
-	/*
-	 * shrink the free list first, no point in zeroing the memory if we're
-	 * just going to reclaim it. Also, skip any possible page pooling.
-	 */
-	if (heap->flags & ION_HEAP_FLAG_DEFER_FREE)
-		freed = ion_heap_freelist_shrink(heap, to_scan * PAGE_SIZE) /
-				PAGE_SIZE;
-
-	to_scan -= freed;
-	if (to_scan <= 0)
-		return freed;
-
-	if (heap->ops->shrink)
-		freed += heap->ops->shrink(heap, sc->gfp_mask, to_scan);
-	return freed;
-}
-
-void ion_heap_init_shrinker(struct ion_heap *heap)
-{
-	heap->shrinker.count_objects = ion_heap_shrink_count;
-	heap->shrinker.scan_objects = ion_heap_shrink_scan;
-	heap->shrinker.seeks = DEFAULT_SEEKS;
-	heap->shrinker.batch = 0;
-	register_shrinker(&heap->shrinker);
-}
-
-struct ion_heap *ion_heap_create(struct ion_platform_heap *heap_data)
-{
-	struct ion_heap *heap = NULL;
-
-	switch (heap_data->type) {
-	case ION_HEAP_TYPE_SYSTEM_CONTIG:
-		heap = ion_system_contig_heap_create(heap_data);
-		break;
-	case ION_HEAP_TYPE_SYSTEM:
-		heap = ion_system_heap_create(heap_data);
-		break;
-	case ION_HEAP_TYPE_CARVEOUT:
-		heap = ion_carveout_heap_create(heap_data);
-		break;
-	case ION_HEAP_TYPE_CHUNK:
-		heap = ion_chunk_heap_create(heap_data);
-		break;
-	case ION_HEAP_TYPE_DMA:
-		heap = ion_cma_heap_create(heap_data);
-		break;
-	default:
-		pr_err("%s: Invalid heap type %d\n", __func__,
-		       heap_data->type);
-		return ERR_PTR(-EINVAL);
-	}
-
-	if (IS_ERR_OR_NULL(heap)) {
-		pr_err("%s: error creating heap %s type %d base %lu size %zu\n",
-		       __func__, heap_data->name, heap_data->type,
-		       heap_data->base, heap_data->size);
-		return ERR_PTR(-EINVAL);
-	}
-
-	heap->name = heap_data->name;
-	heap->id = heap_data->id;
-	return heap;
-}
-
-void ion_heap_destroy(struct ion_heap *heap)
-{
-	if (!heap)
-		return;
-
-	switch (heap->type) {
-	case ION_HEAP_TYPE_SYSTEM_CONTIG:
-		ion_system_contig_heap_destroy(heap);
-		break;
-	case ION_HEAP_TYPE_SYSTEM:
-		ion_system_heap_destroy(heap);
-		break;
-	case ION_HEAP_TYPE_CARVEOUT:
-		ion_carveout_heap_destroy(heap);
-		break;
-	case ION_HEAP_TYPE_CHUNK:
-		ion_chunk_heap_destroy(heap);
-		break;
-	case ION_HEAP_TYPE_DMA:
-		ion_cma_heap_destroy(heap);
-		break;
-	default:
-		pr_err("%s: Invalid heap type %d\n", __func__,
-		       heap->type);
-	}
-}
diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
deleted file mode 100644
index 19ad3aba499a..000000000000
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * drivers/staging/android/ion/ion_mem_pool.c
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/debugfs.h>
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/fs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/swap.h>
-#include "ion_priv.h"
-
-static void *ion_page_pool_alloc_pages(struct ion_page_pool *pool)
-{
-	struct page *page = alloc_pages(pool->gfp_mask, pool->order);
-
-	if (!page)
-		return NULL;
-	ion_pages_sync_for_device(NULL, page, PAGE_SIZE << pool->order,
-						DMA_BIDIRECTIONAL);
-	return page;
-}
-
-static void ion_page_pool_free_pages(struct ion_page_pool *pool,
-				     struct page *page)
-{
-	__free_pages(page, pool->order);
-}
-
-static int ion_page_pool_add(struct ion_page_pool *pool, struct page *page)
-{
-	mutex_lock(&pool->mutex);
-	if (PageHighMem(page)) {
-		list_add_tail(&page->lru, &pool->high_items);
-		pool->high_count++;
-	} else {
-		list_add_tail(&page->lru, &pool->low_items);
-		pool->low_count++;
-	}
-	mutex_unlock(&pool->mutex);
-	return 0;
-}
-
-static struct page *ion_page_pool_remove(struct ion_page_pool *pool, bool high)
-{
-	struct page *page;
-
-	if (high) {
-		BUG_ON(!pool->high_count);
-		page = list_first_entry(&pool->high_items, struct page, lru);
-		pool->high_count--;
-	} else {
-		BUG_ON(!pool->low_count);
-		page = list_first_entry(&pool->low_items, struct page, lru);
-		pool->low_count--;
-	}
-
-	list_del(&page->lru);
-	return page;
-}
-
-struct page *ion_page_pool_alloc(struct ion_page_pool *pool)
-{
-	struct page *page = NULL;
-
-	BUG_ON(!pool);
-
-	mutex_lock(&pool->mutex);
-	if (pool->high_count)
-		page = ion_page_pool_remove(pool, true);
-	else if (pool->low_count)
-		page = ion_page_pool_remove(pool, false);
-	mutex_unlock(&pool->mutex);
-
-	if (!page)
-		page = ion_page_pool_alloc_pages(pool);
-
-	return page;
-}
-
-void ion_page_pool_free(struct ion_page_pool *pool, struct page *page)
-{
-	int ret;
-
-	BUG_ON(pool->order != compound_order(page));
-
-	ret = ion_page_pool_add(pool, page);
-	if (ret)
-		ion_page_pool_free_pages(pool, page);
-}
-
-static int ion_page_pool_total(struct ion_page_pool *pool, bool high)
-{
-	int count = pool->low_count;
-
-	if (high)
-		count += pool->high_count;
-
-	return count << pool->order;
-}
-
-int ion_page_pool_shrink(struct ion_page_pool *pool, gfp_t gfp_mask,
-				int nr_to_scan)
-{
-	int freed = 0;
-	bool high;
-
-	if (current_is_kswapd())
-		high = true;
-	else
-		high = !!(gfp_mask & __GFP_HIGHMEM);
-
-	if (nr_to_scan == 0)
-		return ion_page_pool_total(pool, high);
-
-	while (freed < nr_to_scan) {
-		struct page *page;
-
-		mutex_lock(&pool->mutex);
-		if (pool->low_count) {
-			page = ion_page_pool_remove(pool, false);
-		} else if (high && pool->high_count) {
-			page = ion_page_pool_remove(pool, true);
-		} else {
-			mutex_unlock(&pool->mutex);
-			break;
-		}
-		mutex_unlock(&pool->mutex);
-		ion_page_pool_free_pages(pool, page);
-		freed += (1 << pool->order);
-	}
-
-	return freed;
-}
-
-struct ion_page_pool *ion_page_pool_create(gfp_t gfp_mask, unsigned int order)
-{
-	struct ion_page_pool *pool = kmalloc(sizeof(struct ion_page_pool),
-					     GFP_KERNEL);
-	if (!pool)
-		return NULL;
-	pool->high_count = 0;
-	pool->low_count = 0;
-	INIT_LIST_HEAD(&pool->low_items);
-	INIT_LIST_HEAD(&pool->high_items);
-	pool->gfp_mask = gfp_mask | __GFP_COMP;
-	pool->order = order;
-	mutex_init(&pool->mutex);
-	plist_node_init(&pool->list, order);
-
-	return pool;
-}
-
-void ion_page_pool_destroy(struct ion_page_pool *pool)
-{
-	kfree(pool);
-}
-
-static int __init ion_page_pool_init(void)
-{
-	return 0;
-}
-
-static void __exit ion_page_pool_exit(void)
-{
-}
-
-module_init(ion_page_pool_init);
-module_exit(ion_page_pool_exit);
diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h
deleted file mode 100644
index 52f1cd1a67ed..000000000000
--- a/drivers/staging/android/ion/ion_priv.h
+++ /dev/null
@@ -1,405 +0,0 @@
-/*
- * drivers/staging/android/ion/ion_priv.h
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _ION_PRIV_H
-#define _ION_PRIV_H
-
-#include <linux/device.h>
-#include <linux/dma-direction.h>
-#include <linux/kref.h>
-#include <linux/mm_types.h>
-#include <linux/mutex.h>
-#include <linux/rbtree.h>
-#include <linux/sched.h>
-#include <linux/shrinker.h>
-#include <linux/types.h>
-
-#include "ion.h"
-
-struct ion_buffer *ion_handle_buffer(struct ion_handle *handle);
-
-/**
- * struct ion_buffer - metadata for a particular buffer
- * @ref:		reference count
- * @node:		node in the ion_device buffers tree
- * @dev:		back pointer to the ion_device
- * @heap:		back pointer to the heap the buffer came from
- * @flags:		buffer specific flags
- * @private_flags:	internal buffer specific flags
- * @size:		size of the buffer
- * @priv_virt:		private data to the buffer representable as
- *			a void *
- * @priv_phys:		private data to the buffer representable as
- *			an ion_phys_addr_t (and someday a phys_addr_t)
- * @lock:		protects the buffers cnt fields
- * @kmap_cnt:		number of times the buffer is mapped to the kernel
- * @vaddr:		the kernel mapping if kmap_cnt is not zero
- * @dmap_cnt:		number of times the buffer is mapped for dma
- * @sg_table:		the sg table for the buffer if dmap_cnt is not zero
- * @pages:		flat array of pages in the buffer -- used by fault
- *			handler and only valid for buffers that are faulted in
- * @vmas:		list of vma's mapping this buffer
- * @handle_count:	count of handles referencing this buffer
- * @task_comm:		taskcomm of last client to reference this buffer in a
- *			handle, used for debugging
- * @pid:		pid of last client to reference this buffer in a
- *			handle, used for debugging
-*/
-struct ion_buffer {
-	struct kref ref;
-	union {
-		struct rb_node node;
-		struct list_head list;
-	};
-	struct ion_device *dev;
-	struct ion_heap *heap;
-	unsigned long flags;
-	unsigned long private_flags;
-	size_t size;
-	union {
-		void *priv_virt;
-		ion_phys_addr_t priv_phys;
-	};
-	struct mutex lock;
-	int kmap_cnt;
-	void *vaddr;
-	int dmap_cnt;
-	struct sg_table *sg_table;
-	struct page **pages;
-	struct list_head vmas;
-	/* used to track orphaned buffers */
-	int handle_count;
-	char task_comm[TASK_COMM_LEN];
-	pid_t pid;
-};
-void ion_buffer_destroy(struct ion_buffer *buffer);
-
-/**
- * struct ion_heap_ops - ops to operate on a given heap
- * @allocate:		allocate memory
- * @free:		free memory
- * @phys		get physical address of a buffer (only define on
- *			physically contiguous heaps)
- * @map_dma		map the memory for dma to a scatterlist
- * @unmap_dma		unmap the memory for dma
- * @map_kernel		map memory to the kernel
- * @unmap_kernel	unmap memory to the kernel
- * @map_user		map memory to userspace
- *
- * allocate, phys, and map_user return 0 on success, -errno on error.
- * map_dma and map_kernel return pointer on success, ERR_PTR on
- * error. @free will be called with ION_PRIV_FLAG_SHRINKER_FREE set in
- * the buffer's private_flags when called from a shrinker. In that
- * case, the pages being free'd must be truly free'd back to the
- * system, not put in a page pool or otherwise cached.
- */
-struct ion_heap_ops {
-	int (*allocate)(struct ion_heap *heap,
-			struct ion_buffer *buffer, unsigned long len,
-			unsigned long align, unsigned long flags);
-	void (*free)(struct ion_buffer *buffer);
-	int (*phys)(struct ion_heap *heap, struct ion_buffer *buffer,
-		    ion_phys_addr_t *addr, size_t *len);
-	struct sg_table * (*map_dma)(struct ion_heap *heap,
-				     struct ion_buffer *buffer);
-	void (*unmap_dma)(struct ion_heap *heap, struct ion_buffer *buffer);
-	void * (*map_kernel)(struct ion_heap *heap, struct ion_buffer *buffer);
-	void (*unmap_kernel)(struct ion_heap *heap, struct ion_buffer *buffer);
-	int (*map_user)(struct ion_heap *mapper, struct ion_buffer *buffer,
-			struct vm_area_struct *vma);
-	int (*shrink)(struct ion_heap *heap, gfp_t gfp_mask, int nr_to_scan);
-};
-
-/**
- * heap flags - flags between the heaps and core ion code
- */
-#define ION_HEAP_FLAG_DEFER_FREE (1 << 0)
-
-/**
- * private flags - flags internal to ion
- */
-/*
- * Buffer is being freed from a shrinker function. Skip any possible
- * heap-specific caching mechanism (e.g. page pools). Guarantees that
- * any buffer storage that came from the system allocator will be
- * returned to the system allocator.
- */
-#define ION_PRIV_FLAG_SHRINKER_FREE (1 << 0)
-
-/**
- * struct ion_heap - represents a heap in the system
- * @node:		rb node to put the heap on the device's tree of heaps
- * @dev:		back pointer to the ion_device
- * @type:		type of heap
- * @ops:		ops struct as above
- * @flags:		flags
- * @id:			id of heap, also indicates priority of this heap when
- *			allocating.  These are specified by platform data and
- *			MUST be unique
- * @name:		used for debugging
- * @shrinker:		a shrinker for the heap
- * @free_list:		free list head if deferred free is used
- * @free_list_size	size of the deferred free list in bytes
- * @lock:		protects the free list
- * @waitqueue:		queue to wait on from deferred free thread
- * @task:		task struct of deferred free thread
- * @debug_show:		called when heap debug file is read to add any
- *			heap specific debug info to output
- *
- * Represents a pool of memory from which buffers can be made.  In some
- * systems the only heap is regular system memory allocated via vmalloc.
- * On others, some blocks might require large physically contiguous buffers
- * that are allocated from a specially reserved heap.
- */
-struct ion_heap {
-	struct plist_node node;
-	struct ion_device *dev;
-	enum ion_heap_type type;
-	struct ion_heap_ops *ops;
-	unsigned long flags;
-	unsigned int id;
-	const char *name;
-	struct shrinker shrinker;
-	struct list_head free_list;
-	size_t free_list_size;
-	spinlock_t free_lock;
-	wait_queue_head_t waitqueue;
-	struct task_struct *task;
-
-	int (*debug_show)(struct ion_heap *heap, struct seq_file *, void *);
-};
-
-/**
- * ion_buffer_cached - this ion buffer is cached
- * @buffer:		buffer
- *
- * indicates whether this ion buffer is cached
- */
-bool ion_buffer_cached(struct ion_buffer *buffer);
-
-/**
- * ion_buffer_fault_user_mappings - fault in user mappings of this buffer
- * @buffer:		buffer
- *
- * indicates whether userspace mappings of this buffer will be faulted
- * in, this can affect how buffers are allocated from the heap.
- */
-bool ion_buffer_fault_user_mappings(struct ion_buffer *buffer);
-
-/**
- * ion_device_create - allocates and returns an ion device
- * @custom_ioctl:	arch specific ioctl function if applicable
- *
- * returns a valid device or -PTR_ERR
- */
-struct ion_device *ion_device_create(long (*custom_ioctl)
-				     (struct ion_client *client,
-				      unsigned int cmd,
-				      unsigned long arg));
-
-/**
- * ion_device_destroy - free and device and it's resource
- * @dev:		the device
- */
-void ion_device_destroy(struct ion_device *dev);
-
-/**
- * ion_device_add_heap - adds a heap to the ion device
- * @dev:		the device
- * @heap:		the heap to add
- */
-void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap);
-
-/**
- * some helpers for common operations on buffers using the sg_table
- * and vaddr fields
- */
-void *ion_heap_map_kernel(struct ion_heap *, struct ion_buffer *);
-void ion_heap_unmap_kernel(struct ion_heap *, struct ion_buffer *);
-int ion_heap_map_user(struct ion_heap *, struct ion_buffer *,
-			struct vm_area_struct *);
-int ion_heap_buffer_zero(struct ion_buffer *buffer);
-int ion_heap_pages_zero(struct page *page, size_t size, pgprot_t pgprot);
-
-/**
- * ion_heap_init_shrinker
- * @heap:		the heap
- *
- * If a heap sets the ION_HEAP_FLAG_DEFER_FREE flag or defines the shrink op
- * this function will be called to setup a shrinker to shrink the freelists
- * and call the heap's shrink op.
- */
-void ion_heap_init_shrinker(struct ion_heap *heap);
-
-/**
- * ion_heap_init_deferred_free -- initialize deferred free functionality
- * @heap:		the heap
- *
- * If a heap sets the ION_HEAP_FLAG_DEFER_FREE flag this function will
- * be called to setup deferred frees. Calls to free the buffer will
- * return immediately and the actual free will occur some time later
- */
-int ion_heap_init_deferred_free(struct ion_heap *heap);
-
-/**
- * ion_heap_freelist_add - add a buffer to the deferred free list
- * @heap:		the heap
- * @buffer:		the buffer
- *
- * Adds an item to the deferred freelist.
- */
-void ion_heap_freelist_add(struct ion_heap *heap, struct ion_buffer *buffer);
-
-/**
- * ion_heap_freelist_drain - drain the deferred free list
- * @heap:		the heap
- * @size:		amount of memory to drain in bytes
- *
- * Drains the indicated amount of memory from the deferred freelist immediately.
- * Returns the total amount freed.  The total freed may be higher depending
- * on the size of the items in the list, or lower if there is insufficient
- * total memory on the freelist.
- */
-size_t ion_heap_freelist_drain(struct ion_heap *heap, size_t size);
-
-/**
- * ion_heap_freelist_shrink - drain the deferred free
- *				list, skipping any heap-specific
- *				pooling or caching mechanisms
- *
- * @heap:		the heap
- * @size:		amount of memory to drain in bytes
- *
- * Drains the indicated amount of memory from the deferred freelist immediately.
- * Returns the total amount freed.  The total freed may be higher depending
- * on the size of the items in the list, or lower if there is insufficient
- * total memory on the freelist.
- *
- * Unlike with @ion_heap_freelist_drain, don't put any pages back into
- * page pools or otherwise cache the pages. Everything must be
- * genuinely free'd back to the system. If you're free'ing from a
- * shrinker you probably want to use this. Note that this relies on
- * the heap.ops.free callback honoring the ION_PRIV_FLAG_SHRINKER_FREE
- * flag.
- */
-size_t ion_heap_freelist_shrink(struct ion_heap *heap,
-					size_t size);
-
-/**
- * ion_heap_freelist_size - returns the size of the freelist in bytes
- * @heap:		the heap
- */
-size_t ion_heap_freelist_size(struct ion_heap *heap);
-
-
-/**
- * functions for creating and destroying the built in ion heaps.
- * architectures can add their own custom architecture specific
- * heaps as appropriate.
- */
-
-struct ion_heap *ion_heap_create(struct ion_platform_heap *);
-void ion_heap_destroy(struct ion_heap *);
-struct ion_heap *ion_system_heap_create(struct ion_platform_heap *);
-void ion_system_heap_destroy(struct ion_heap *);
-
-struct ion_heap *ion_system_contig_heap_create(struct ion_platform_heap *);
-void ion_system_contig_heap_destroy(struct ion_heap *);
-
-struct ion_heap *ion_carveout_heap_create(struct ion_platform_heap *);
-void ion_carveout_heap_destroy(struct ion_heap *);
-
-struct ion_heap *ion_chunk_heap_create(struct ion_platform_heap *);
-void ion_chunk_heap_destroy(struct ion_heap *);
-struct ion_heap *ion_cma_heap_create(struct ion_platform_heap *);
-void ion_cma_heap_destroy(struct ion_heap *);
-
-/**
- * kernel api to allocate/free from carveout -- used when carveout is
- * used to back an architecture specific custom heap
- */
-ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap, unsigned long size,
-				      unsigned long align);
-void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr,
-		       unsigned long size);
-/**
- * The carveout heap returns physical addresses, since 0 may be a valid
- * physical address, this is used to indicate allocation failed
- */
-#define ION_CARVEOUT_ALLOCATE_FAIL -1
-
-/**
- * functions for creating and destroying a heap pool -- allows you
- * to keep a pool of pre allocated memory to use from your heap.  Keeping
- * a pool of memory that is ready for dma, ie any cached mapping have been
- * invalidated from the cache, provides a significant performance benefit on
- * many systems */
-
-/**
- * struct ion_page_pool - pagepool struct
- * @high_count:		number of highmem items in the pool
- * @low_count:		number of lowmem items in the pool
- * @high_items:		list of highmem items
- * @low_items:		list of lowmem items
- * @mutex:		lock protecting this struct and especially the count
- *			item list
- * @gfp_mask:		gfp_mask to use from alloc
- * @order:		order of pages in the pool
- * @list:		plist node for list of pools
- *
- * Allows you to keep a pool of pre allocated pages to use from your heap.
- * Keeping a pool of pages that is ready for dma, ie any cached mapping have
- * been invalidated from the cache, provides a significant performance benefit
- * on many systems
- */
-struct ion_page_pool {
-	int high_count;
-	int low_count;
-	struct list_head high_items;
-	struct list_head low_items;
-	struct mutex mutex;
-	gfp_t gfp_mask;
-	unsigned int order;
-	struct plist_node list;
-};
-
-struct ion_page_pool *ion_page_pool_create(gfp_t gfp_mask, unsigned int order);
-void ion_page_pool_destroy(struct ion_page_pool *);
-struct page *ion_page_pool_alloc(struct ion_page_pool *);
-void ion_page_pool_free(struct ion_page_pool *, struct page *);
-
-/** ion_page_pool_shrink - shrinks the size of the memory cached in the pool
- * @pool:		the pool
- * @gfp_mask:		the memory type to reclaim
- * @nr_to_scan:		number of items to shrink in pages
- *
- * returns the number of items freed in pages
- */
-int ion_page_pool_shrink(struct ion_page_pool *pool, gfp_t gfp_mask,
-			  int nr_to_scan);
-
-/**
- * ion_pages_sync_for_device - cache flush pages for use with the specified
- *                             device
- * @dev:		the device the pages will be used with
- * @page:		the first page to be flushed
- * @size:		size in bytes of region to be flushed
- * @dir:		direction of dma transfer
- */
-void ion_pages_sync_for_device(struct device *dev, struct page *page,
-		size_t size, enum dma_data_direction dir);
-
-#endif /* _ION_PRIV_H */
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
deleted file mode 100644
index 7a7a9a047230..000000000000
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ /dev/null
@@ -1,434 +0,0 @@
-/*
- * drivers/staging/android/ion/ion_system_heap.c
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <asm/page.h>
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/highmem.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include "ion.h"
-#include "ion_priv.h"
-
-static gfp_t high_order_gfp_flags = (GFP_HIGHUSER | __GFP_ZERO | __GFP_NOWARN |
-				     __GFP_NORETRY) & ~__GFP_WAIT;
-static gfp_t low_order_gfp_flags  = (GFP_HIGHUSER | __GFP_ZERO | __GFP_NOWARN);
-static const unsigned int orders[] = {8, 4, 0};
-static const int num_orders = ARRAY_SIZE(orders);
-static int order_to_index(unsigned int order)
-{
-	int i;
-
-	for (i = 0; i < num_orders; i++)
-		if (order == orders[i])
-			return i;
-	BUG();
-	return -1;
-}
-
-static inline unsigned int order_to_size(int order)
-{
-	return PAGE_SIZE << order;
-}
-
-struct ion_system_heap {
-	struct ion_heap heap;
-	struct ion_page_pool *pools[0];
-};
-
-static struct page *alloc_buffer_page(struct ion_system_heap *heap,
-				      struct ion_buffer *buffer,
-				      unsigned long order)
-{
-	bool cached = ion_buffer_cached(buffer);
-	struct ion_page_pool *pool = heap->pools[order_to_index(order)];
-	struct page *page;
-
-	if (!cached) {
-		page = ion_page_pool_alloc(pool);
-	} else {
-		gfp_t gfp_flags = low_order_gfp_flags;
-
-		if (order > 4)
-			gfp_flags = high_order_gfp_flags;
-		page = alloc_pages(gfp_flags | __GFP_COMP, order);
-		if (!page)
-			return NULL;
-		ion_pages_sync_for_device(NULL, page, PAGE_SIZE << order,
-						DMA_BIDIRECTIONAL);
-	}
-
-	return page;
-}
-
-static void free_buffer_page(struct ion_system_heap *heap,
-			     struct ion_buffer *buffer, struct page *page)
-{
-	unsigned int order = compound_order(page);
-	bool cached = ion_buffer_cached(buffer);
-
-	if (!cached && !(buffer->private_flags & ION_PRIV_FLAG_SHRINKER_FREE)) {
-		struct ion_page_pool *pool = heap->pools[order_to_index(order)];
-
-		ion_page_pool_free(pool, page);
-	} else {
-		__free_pages(page, order);
-	}
-}
-
-
-static struct page *alloc_largest_available(struct ion_system_heap *heap,
-					    struct ion_buffer *buffer,
-					    unsigned long size,
-					    unsigned int max_order)
-{
-	struct page *page;
-	int i;
-
-	for (i = 0; i < num_orders; i++) {
-		if (size < order_to_size(orders[i]))
-			continue;
-		if (max_order < orders[i])
-			continue;
-
-		page = alloc_buffer_page(heap, buffer, orders[i]);
-		if (!page)
-			continue;
-
-		return page;
-	}
-
-	return NULL;
-}
-
-static int ion_system_heap_allocate(struct ion_heap *heap,
-				     struct ion_buffer *buffer,
-				     unsigned long size, unsigned long align,
-				     unsigned long flags)
-{
-	struct ion_system_heap *sys_heap = container_of(heap,
-							struct ion_system_heap,
-							heap);
-	struct sg_table *table;
-	struct scatterlist *sg;
-	struct list_head pages;
-	struct page *page, *tmp_page;
-	int i = 0;
-	unsigned long size_remaining = PAGE_ALIGN(size);
-	unsigned int max_order = orders[0];
-
-	if (align > PAGE_SIZE)
-		return -EINVAL;
-
-	if (size / PAGE_SIZE > totalram_pages / 2)
-		return -ENOMEM;
-
-	INIT_LIST_HEAD(&pages);
-	while (size_remaining > 0) {
-		page = alloc_largest_available(sys_heap, buffer, size_remaining,
-						max_order);
-		if (!page)
-			goto free_pages;
-		list_add_tail(&page->lru, &pages);
-		size_remaining -= PAGE_SIZE << compound_order(page);
-		max_order = compound_order(page);
-		i++;
-	}
-	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
-	if (!table)
-		goto free_pages;
-
-	if (sg_alloc_table(table, i, GFP_KERNEL))
-		goto free_table;
-
-	sg = table->sgl;
-	list_for_each_entry_safe(page, tmp_page, &pages, lru) {
-		sg_set_page(sg, page, PAGE_SIZE << compound_order(page), 0);
-		sg = sg_next(sg);
-		list_del(&page->lru);
-	}
-
-	buffer->priv_virt = table;
-	return 0;
-
-free_table:
-	kfree(table);
-free_pages:
-	list_for_each_entry_safe(page, tmp_page, &pages, lru)
-		free_buffer_page(sys_heap, buffer, page);
-	return -ENOMEM;
-}
-
-static void ion_system_heap_free(struct ion_buffer *buffer)
-{
-	struct ion_system_heap *sys_heap = container_of(buffer->heap,
-							struct ion_system_heap,
-							heap);
-	struct sg_table *table = buffer->sg_table;
-	bool cached = ion_buffer_cached(buffer);
-	struct scatterlist *sg;
-	int i;
-
-	/* uncached pages come from the page pools, zero them before returning
-	   for security purposes (other allocations are zerod at alloc time */
-	if (!cached && !(buffer->private_flags & ION_PRIV_FLAG_SHRINKER_FREE))
-		ion_heap_buffer_zero(buffer);
-
-	for_each_sg(table->sgl, sg, table->nents, i)
-		free_buffer_page(sys_heap, buffer, sg_page(sg));
-	sg_free_table(table);
-	kfree(table);
-}
-
-static struct sg_table *ion_system_heap_map_dma(struct ion_heap *heap,
-						struct ion_buffer *buffer)
-{
-	return buffer->priv_virt;
-}
-
-static void ion_system_heap_unmap_dma(struct ion_heap *heap,
-				      struct ion_buffer *buffer)
-{
-}
-
-static int ion_system_heap_shrink(struct ion_heap *heap, gfp_t gfp_mask,
-					int nr_to_scan)
-{
-	struct ion_system_heap *sys_heap;
-	int nr_total = 0;
-	int i, nr_freed;
-	int only_scan = 0;
-
-	sys_heap = container_of(heap, struct ion_system_heap, heap);
-
-	if (!nr_to_scan)
-		only_scan = 1;
-
-	for (i = 0; i < num_orders; i++) {
-		struct ion_page_pool *pool = sys_heap->pools[i];
-
-		nr_freed = ion_page_pool_shrink(pool, gfp_mask, nr_to_scan);
-		nr_total += nr_freed;
-
-		if (!only_scan) {
-			nr_to_scan -= nr_freed;
-			/* shrink completed */
-			if (nr_to_scan <= 0)
-				break;
-		}
-	}
-
-	return nr_total;
-}
-
-static struct ion_heap_ops system_heap_ops = {
-	.allocate = ion_system_heap_allocate,
-	.free = ion_system_heap_free,
-	.map_dma = ion_system_heap_map_dma,
-	.unmap_dma = ion_system_heap_unmap_dma,
-	.map_kernel = ion_heap_map_kernel,
-	.unmap_kernel = ion_heap_unmap_kernel,
-	.map_user = ion_heap_map_user,
-	.shrink = ion_system_heap_shrink,
-};
-
-static int ion_system_heap_debug_show(struct ion_heap *heap, struct seq_file *s,
-				      void *unused)
-{
-
-	struct ion_system_heap *sys_heap = container_of(heap,
-							struct ion_system_heap,
-							heap);
-	int i;
-
-	for (i = 0; i < num_orders; i++) {
-		struct ion_page_pool *pool = sys_heap->pools[i];
-
-		seq_printf(s, "%d order %u highmem pages in pool = %lu total\n",
-			   pool->high_count, pool->order,
-			   (PAGE_SIZE << pool->order) * pool->high_count);
-		seq_printf(s, "%d order %u lowmem pages in pool = %lu total\n",
-			   pool->low_count, pool->order,
-			   (PAGE_SIZE << pool->order) * pool->low_count);
-	}
-	return 0;
-}
-
-struct ion_heap *ion_system_heap_create(struct ion_platform_heap *unused)
-{
-	struct ion_system_heap *heap;
-	int i;
-
-	heap = kzalloc(sizeof(struct ion_system_heap) +
-			sizeof(struct ion_page_pool *) * num_orders,
-			GFP_KERNEL);
-	if (!heap)
-		return ERR_PTR(-ENOMEM);
-	heap->heap.ops = &system_heap_ops;
-	heap->heap.type = ION_HEAP_TYPE_SYSTEM;
-	heap->heap.flags = ION_HEAP_FLAG_DEFER_FREE;
-
-	for (i = 0; i < num_orders; i++) {
-		struct ion_page_pool *pool;
-		gfp_t gfp_flags = low_order_gfp_flags;
-
-		if (orders[i] > 4)
-			gfp_flags = high_order_gfp_flags;
-		pool = ion_page_pool_create(gfp_flags, orders[i]);
-		if (!pool)
-			goto destroy_pools;
-		heap->pools[i] = pool;
-	}
-
-	heap->heap.debug_show = ion_system_heap_debug_show;
-	return &heap->heap;
-
-destroy_pools:
-	while (i--)
-		ion_page_pool_destroy(heap->pools[i]);
-	kfree(heap);
-	return ERR_PTR(-ENOMEM);
-}
-
-void ion_system_heap_destroy(struct ion_heap *heap)
-{
-	struct ion_system_heap *sys_heap = container_of(heap,
-							struct ion_system_heap,
-							heap);
-	int i;
-
-	for (i = 0; i < num_orders; i++)
-		ion_page_pool_destroy(sys_heap->pools[i]);
-	kfree(sys_heap);
-}
-
-static int ion_system_contig_heap_allocate(struct ion_heap *heap,
-					   struct ion_buffer *buffer,
-					   unsigned long len,
-					   unsigned long align,
-					   unsigned long flags)
-{
-	int order = get_order(len);
-	struct page *page;
-	struct sg_table *table;
-	unsigned long i;
-	int ret;
-
-	if (align > (PAGE_SIZE << order))
-		return -EINVAL;
-
-	page = alloc_pages(low_order_gfp_flags, order);
-	if (!page)
-		return -ENOMEM;
-
-	split_page(page, order);
-
-	len = PAGE_ALIGN(len);
-	for (i = len >> PAGE_SHIFT; i < (1 << order); i++)
-		__free_page(page + i);
-
-	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
-	if (!table) {
-		ret = -ENOMEM;
-		goto free_pages;
-	}
-
-	ret = sg_alloc_table(table, 1, GFP_KERNEL);
-	if (ret)
-		goto free_table;
-
-	sg_set_page(table->sgl, page, len, 0);
-
-	buffer->priv_virt = table;
-
-	ion_pages_sync_for_device(NULL, page, len, DMA_BIDIRECTIONAL);
-
-	return 0;
-
-free_table:
-	kfree(table);
-free_pages:
-	for (i = 0; i < len >> PAGE_SHIFT; i++)
-		__free_page(page + i);
-
-	return ret;
-}
-
-static void ion_system_contig_heap_free(struct ion_buffer *buffer)
-{
-	struct sg_table *table = buffer->priv_virt;
-	struct page *page = sg_page(table->sgl);
-	unsigned long pages = PAGE_ALIGN(buffer->size) >> PAGE_SHIFT;
-	unsigned long i;
-
-	for (i = 0; i < pages; i++)
-		__free_page(page + i);
-	sg_free_table(table);
-	kfree(table);
-}
-
-static int ion_system_contig_heap_phys(struct ion_heap *heap,
-				       struct ion_buffer *buffer,
-				       ion_phys_addr_t *addr, size_t *len)
-{
-	struct sg_table *table = buffer->priv_virt;
-	struct page *page = sg_page(table->sgl);
-	*addr = page_to_phys(page);
-	*len = buffer->size;
-	return 0;
-}
-
-static struct sg_table *ion_system_contig_heap_map_dma(struct ion_heap *heap,
-						struct ion_buffer *buffer)
-{
-	return buffer->priv_virt;
-}
-
-static void ion_system_contig_heap_unmap_dma(struct ion_heap *heap,
-					     struct ion_buffer *buffer)
-{
-}
-
-static struct ion_heap_ops kmalloc_ops = {
-	.allocate = ion_system_contig_heap_allocate,
-	.free = ion_system_contig_heap_free,
-	.phys = ion_system_contig_heap_phys,
-	.map_dma = ion_system_contig_heap_map_dma,
-	.unmap_dma = ion_system_contig_heap_unmap_dma,
-	.map_kernel = ion_heap_map_kernel,
-	.unmap_kernel = ion_heap_unmap_kernel,
-	.map_user = ion_heap_map_user,
-};
-
-struct ion_heap *ion_system_contig_heap_create(struct ion_platform_heap *unused)
-{
-	struct ion_heap *heap;
-
-	heap = kzalloc(sizeof(struct ion_heap), GFP_KERNEL);
-	if (!heap)
-		return ERR_PTR(-ENOMEM);
-	heap->ops = &kmalloc_ops;
-	heap->type = ION_HEAP_TYPE_SYSTEM_CONTIG;
-	return heap;
-}
-
-void ion_system_contig_heap_destroy(struct ion_heap *heap)
-{
-	kfree(heap);
-}
diff --git a/drivers/staging/android/ion/ion_test.c b/drivers/staging/android/ion/ion_test.c
deleted file mode 100644
index b8dcf5a26cc4..000000000000
--- a/drivers/staging/android/ion/ion_test.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- *
- * Copyright (C) 2013 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#define pr_fmt(fmt) "ion-test: " fmt
-
-#include <linux/dma-buf.h>
-#include <linux/dma-direction.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/vmalloc.h>
-
-#include "ion.h"
-#include "../uapi/ion_test.h"
-
-#define u64_to_uptr(x) ((void __user *)(unsigned long)(x))
-
-struct ion_test_device {
-	struct miscdevice misc;
-};
-
-struct ion_test_data {
-	struct dma_buf *dma_buf;
-	struct device *dev;
-};
-
-static int ion_handle_test_dma(struct device *dev, struct dma_buf *dma_buf,
-		void __user *ptr, size_t offset, size_t size, bool write)
-{
-	int ret = 0;
-	struct dma_buf_attachment *attach;
-	struct sg_table *table;
-	pgprot_t pgprot = pgprot_writecombine(PAGE_KERNEL);
-	enum dma_data_direction dir = write ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
-	struct sg_page_iter sg_iter;
-	unsigned long offset_page;
-
-	attach = dma_buf_attach(dma_buf, dev);
-	if (IS_ERR(attach))
-		return PTR_ERR(attach);
-
-	table = dma_buf_map_attachment(attach, dir);
-	if (IS_ERR(table))
-		return PTR_ERR(table);
-
-	offset_page = offset >> PAGE_SHIFT;
-	offset %= PAGE_SIZE;
-
-	for_each_sg_page(table->sgl, &sg_iter, table->nents, offset_page) {
-		struct page *page = sg_page_iter_page(&sg_iter);
-		void *vaddr = vmap(&page, 1, VM_MAP, pgprot);
-		size_t to_copy = PAGE_SIZE - offset;
-
-		to_copy = min(to_copy, size);
-		if (!vaddr) {
-			ret = -ENOMEM;
-			goto err;
-		}
-
-		if (write)
-			ret = copy_from_user(vaddr + offset, ptr, to_copy);
-		else
-			ret = copy_to_user(ptr, vaddr + offset, to_copy);
-
-		vunmap(vaddr);
-		if (ret) {
-			ret = -EFAULT;
-			goto err;
-		}
-		size -= to_copy;
-		if (!size)
-			break;
-		ptr += to_copy;
-		offset = 0;
-	}
-
-err:
-	dma_buf_unmap_attachment(attach, table, dir);
-	dma_buf_detach(dma_buf, attach);
-	return ret;
-}
-
-static int ion_handle_test_kernel(struct dma_buf *dma_buf, void __user *ptr,
-		size_t offset, size_t size, bool write)
-{
-	int ret;
-	unsigned long page_offset = offset >> PAGE_SHIFT;
-	size_t copy_offset = offset % PAGE_SIZE;
-	size_t copy_size = size;
-	enum dma_data_direction dir = write ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
-
-	if (offset > dma_buf->size || size > dma_buf->size - offset)
-		return -EINVAL;
-
-	ret = dma_buf_begin_cpu_access(dma_buf, offset, size, dir);
-	if (ret)
-		return ret;
-
-	while (copy_size > 0) {
-		size_t to_copy;
-		void *vaddr = dma_buf_kmap(dma_buf, page_offset);
-
-		if (!vaddr)
-			goto err;
-
-		to_copy = min_t(size_t, PAGE_SIZE - copy_offset, copy_size);
-
-		if (write)
-			ret = copy_from_user(vaddr + copy_offset, ptr, to_copy);
-		else
-			ret = copy_to_user(ptr, vaddr + copy_offset, to_copy);
-
-		dma_buf_kunmap(dma_buf, page_offset, vaddr);
-		if (ret) {
-			ret = -EFAULT;
-			goto err;
-		}
-
-		copy_size -= to_copy;
-		ptr += to_copy;
-		page_offset++;
-		copy_offset = 0;
-	}
-err:
-	dma_buf_end_cpu_access(dma_buf, offset, size, dir);
-	return ret;
-}
-
-static long ion_test_ioctl(struct file *filp, unsigned int cmd,
-						unsigned long arg)
-{
-	struct ion_test_data *test_data = filp->private_data;
-	int ret = 0;
-
-	union {
-		struct ion_test_rw_data test_rw;
-	} data;
-
-	if (_IOC_SIZE(cmd) > sizeof(data))
-		return -EINVAL;
-
-	if (_IOC_DIR(cmd) & _IOC_WRITE)
-		if (copy_from_user(&data, (void __user *)arg, _IOC_SIZE(cmd)))
-			return -EFAULT;
-
-	switch (cmd) {
-	case ION_IOC_TEST_SET_FD:
-	{
-		struct dma_buf *dma_buf = NULL;
-		int fd = arg;
-
-		if (fd >= 0) {
-			dma_buf = dma_buf_get((int)arg);
-			if (IS_ERR(dma_buf))
-				return PTR_ERR(dma_buf);
-		}
-		if (test_data->dma_buf)
-			dma_buf_put(test_data->dma_buf);
-		test_data->dma_buf = dma_buf;
-		break;
-	}
-	case ION_IOC_TEST_DMA_MAPPING:
-	{
-		ret = ion_handle_test_dma(test_data->dev, test_data->dma_buf,
-					u64_to_uptr(data.test_rw.ptr),
-					data.test_rw.offset, data.test_rw.size,
-					data.test_rw.write);
-		break;
-	}
-	case ION_IOC_TEST_KERNEL_MAPPING:
-	{
-		ret = ion_handle_test_kernel(test_data->dma_buf,
-					u64_to_uptr(data.test_rw.ptr),
-					data.test_rw.offset, data.test_rw.size,
-					data.test_rw.write);
-		break;
-	}
-	default:
-		return -ENOTTY;
-	}
-
-	if (_IOC_DIR(cmd) & _IOC_READ) {
-		if (copy_to_user((void __user *)arg, &data, sizeof(data)))
-			return -EFAULT;
-	}
-	return ret;
-}
-
-static int ion_test_open(struct inode *inode, struct file *file)
-{
-	struct ion_test_data *data;
-	struct miscdevice *miscdev = file->private_data;
-
-	data = kzalloc(sizeof(struct ion_test_data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	data->dev = miscdev->parent;
-
-	file->private_data = data;
-
-	return 0;
-}
-
-static int ion_test_release(struct inode *inode, struct file *file)
-{
-	struct ion_test_data *data = file->private_data;
-
-	kfree(data);
-
-	return 0;
-}
-
-static const struct file_operations ion_test_fops = {
-	.owner = THIS_MODULE,
-	.unlocked_ioctl = ion_test_ioctl,
-	.compat_ioctl = ion_test_ioctl,
-	.open = ion_test_open,
-	.release = ion_test_release,
-};
-
-static int __init ion_test_probe(struct platform_device *pdev)
-{
-	int ret;
-	struct ion_test_device *testdev;
-
-	testdev = devm_kzalloc(&pdev->dev, sizeof(struct ion_test_device),
-				GFP_KERNEL);
-	if (!testdev)
-		return -ENOMEM;
-
-	testdev->misc.minor = MISC_DYNAMIC_MINOR;
-	testdev->misc.name = "ion-test";
-	testdev->misc.fops = &ion_test_fops;
-	testdev->misc.parent = &pdev->dev;
-	ret = misc_register(&testdev->misc);
-	if (ret) {
-		pr_err("failed to register misc device.\n");
-		return ret;
-	}
-
-	platform_set_drvdata(pdev, testdev);
-
-	return 0;
-}
-
-static int ion_test_remove(struct platform_device *pdev)
-{
-	struct ion_test_device *testdev;
-
-	testdev = platform_get_drvdata(pdev);
-	if (!testdev)
-		return -ENODATA;
-
-	misc_deregister(&testdev->misc);
-	return 0;
-}
-
-static struct platform_device *ion_test_pdev;
-static struct platform_driver ion_test_platform_driver = {
-	.remove = ion_test_remove,
-	.driver = {
-		.name = "ion-test",
-	},
-};
-
-static int __init ion_test_init(void)
-{
-	ion_test_pdev = platform_device_register_simple("ion-test",
-							-1, NULL, 0);
-	if (!ion_test_pdev)
-		return -ENODEV;
-
-	return platform_driver_probe(&ion_test_platform_driver, ion_test_probe);
-}
-
-static void __exit ion_test_exit(void)
-{
-	platform_driver_unregister(&ion_test_platform_driver);
-	platform_device_unregister(ion_test_pdev);
-}
-
-module_init(ion_test_init);
-module_exit(ion_test_exit);
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/android/ion/tegra/Makefile b/drivers/staging/android/ion/tegra/Makefile
deleted file mode 100644
index 11cd003fb08f..000000000000
--- a/drivers/staging/android/ion/tegra/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-y += tegra_ion.o
diff --git a/drivers/staging/android/ion/tegra/tegra_ion.c b/drivers/staging/android/ion/tegra/tegra_ion.c
deleted file mode 100644
index 4d3c516cc15e..000000000000
--- a/drivers/staging/android/ion/tegra/tegra_ion.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * drivers/gpu/tegra/tegra_ion.c
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include "../ion.h"
-#include "../ion_priv.h"
-
-static struct ion_device *idev;
-static int num_heaps;
-static struct ion_heap **heaps;
-
-static int tegra_ion_probe(struct platform_device *pdev)
-{
-	struct ion_platform_data *pdata = pdev->dev.platform_data;
-	int err;
-	int i;
-
-	num_heaps = pdata->nr;
-
-	heaps = devm_kzalloc(&pdev->dev,
-			     sizeof(struct ion_heap *) * pdata->nr,
-			     GFP_KERNEL);
-
-	idev = ion_device_create(NULL);
-	if (IS_ERR_OR_NULL(idev))
-		return PTR_ERR(idev);
-
-	/* create the heaps as specified in the board file */
-	for (i = 0; i < num_heaps; i++) {
-		struct ion_platform_heap *heap_data = &pdata->heaps[i];
-
-		heaps[i] = ion_heap_create(heap_data);
-		if (IS_ERR_OR_NULL(heaps[i])) {
-			err = PTR_ERR(heaps[i]);
-			goto err;
-		}
-		ion_device_add_heap(idev, heaps[i]);
-	}
-	platform_set_drvdata(pdev, idev);
-	return 0;
-err:
-	for (i = 0; i < num_heaps; ++i)
-		ion_heap_destroy(heaps[i]);
-	return err;
-}
-
-static int tegra_ion_remove(struct platform_device *pdev)
-{
-	struct ion_device *idev = platform_get_drvdata(pdev);
-	int i;
-
-	ion_device_destroy(idev);
-	for (i = 0; i < num_heaps; i++)
-		ion_heap_destroy(heaps[i]);
-	return 0;
-}
-
-static struct platform_driver ion_driver = {
-	.probe = tegra_ion_probe,
-	.remove = tegra_ion_remove,
-	.driver = { .name = "ion-tegra" }
-};
-
-module_platform_driver(ion_driver);
-
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
deleted file mode 100644
index 872bd603fd0d..000000000000
--- a/drivers/staging/android/lowmemorykiller.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/* drivers/misc/lowmemorykiller.c
- *
- * The lowmemorykiller driver lets user-space specify a set of memory thresholds
- * where processes with a range of oom_score_adj values will get killed. Specify
- * the minimum oom_score_adj values in
- * /sys/module/lowmemorykiller/parameters/adj and the number of free pages in
- * /sys/module/lowmemorykiller/parameters/minfree. Both files take a comma
- * separated list of numbers in ascending order.
- *
- * For example, write "0,8" to /sys/module/lowmemorykiller/parameters/adj and
- * "1024,4096" to /sys/module/lowmemorykiller/parameters/minfree to kill
- * processes with a oom_score_adj value of 8 or higher when the free memory
- * drops below 4096 pages and kill processes with a oom_score_adj value of 0 or
- * higher when the free memory drops below 1024 pages.
- *
- * The driver considers memory used for caches to be free, but if a large
- * percentage of the cached memory is locked this can be very inaccurate
- * and processes may not get killed until the normal oom killer is triggered.
- *
- * Copyright (C) 2007-2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/oom.h>
-#include <linux/sched.h>
-#include <linux/swap.h>
-#include <linux/rcupdate.h>
-#include <linux/profile.h>
-#include <linux/notifier.h>
-
-static uint32_t lowmem_debug_level = 1;
-static short lowmem_adj[6] = {
-	0,
-	1,
-	6,
-	12,
-};
-static int lowmem_adj_size = 4;
-static int lowmem_minfree[6] = {
-	3 * 512,	/* 6MB */
-	2 * 1024,	/* 8MB */
-	4 * 1024,	/* 16MB */
-	16 * 1024,	/* 64MB */
-};
-static int lowmem_minfree_size = 4;
-
-static unsigned long lowmem_deathpending_timeout;
-
-#define lowmem_print(level, x...)			\
-	do {						\
-		if (lowmem_debug_level >= (level))	\
-			pr_info(x);			\
-	} while (0)
-
-static unsigned long lowmem_count(struct shrinker *s,
-				  struct shrink_control *sc)
-{
-	return global_page_state(NR_ACTIVE_ANON) +
-		global_page_state(NR_ACTIVE_FILE) +
-		global_page_state(NR_INACTIVE_ANON) +
-		global_page_state(NR_INACTIVE_FILE);
-}
-
-static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc)
-{
-	struct task_struct *tsk;
-	struct task_struct *selected = NULL;
-	unsigned long rem = 0;
-	int tasksize;
-	int i;
-	short min_score_adj = OOM_SCORE_ADJ_MAX + 1;
-	int selected_tasksize = 0;
-	short selected_oom_score_adj;
-	int array_size = ARRAY_SIZE(lowmem_adj);
-	int other_free = global_page_state(NR_FREE_PAGES) - totalreserve_pages;
-	int other_file = global_page_state(NR_FILE_PAGES) -
-						global_page_state(NR_SHMEM) -
-						total_swapcache_pages();
-
-	if (lowmem_adj_size < array_size)
-		array_size = lowmem_adj_size;
-	if (lowmem_minfree_size < array_size)
-		array_size = lowmem_minfree_size;
-	for (i = 0; i < array_size; i++) {
-		if (other_free < lowmem_minfree[i] &&
-		    other_file < lowmem_minfree[i]) {
-			min_score_adj = lowmem_adj[i];
-			break;
-		}
-	}
-
-	lowmem_print(3, "lowmem_scan %lu, %x, ofree %d %d, ma %hd\n",
-			sc->nr_to_scan, sc->gfp_mask, other_free,
-			other_file, min_score_adj);
-
-	if (min_score_adj == OOM_SCORE_ADJ_MAX + 1) {
-		lowmem_print(5, "lowmem_scan %lu, %x, return 0\n",
-			     sc->nr_to_scan, sc->gfp_mask);
-		return 0;
-	}
-
-	selected_oom_score_adj = min_score_adj;
-
-	rcu_read_lock();
-	for_each_process(tsk) {
-		struct task_struct *p;
-		short oom_score_adj;
-
-		if (tsk->flags & PF_KTHREAD)
-			continue;
-
-		p = find_lock_task_mm(tsk);
-		if (!p)
-			continue;
-
-		if (test_tsk_thread_flag(p, TIF_MEMDIE) &&
-		    time_before_eq(jiffies, lowmem_deathpending_timeout)) {
-			task_unlock(p);
-			rcu_read_unlock();
-			return 0;
-		}
-		oom_score_adj = p->signal->oom_score_adj;
-		if (oom_score_adj < min_score_adj) {
-			task_unlock(p);
-			continue;
-		}
-		tasksize = get_mm_rss(p->mm);
-		task_unlock(p);
-		if (tasksize <= 0)
-			continue;
-		if (selected) {
-			if (oom_score_adj < selected_oom_score_adj)
-				continue;
-			if (oom_score_adj == selected_oom_score_adj &&
-			    tasksize <= selected_tasksize)
-				continue;
-		}
-		selected = p;
-		selected_tasksize = tasksize;
-		selected_oom_score_adj = oom_score_adj;
-		lowmem_print(2, "select %d (%s), adj %hd, size %d, to kill\n",
-			     p->pid, p->comm, oom_score_adj, tasksize);
-	}
-	if (selected) {
-		task_lock(selected);
-		if (!selected->mm) {
-			/* Already exited, cannot do mark_tsk_oom_victim() */
-			task_unlock(selected);
-			goto out;
-		}
-		/*
-		 * FIXME: lowmemorykiller shouldn't abuse global OOM killer
-		 * infrastructure. There is no real reason why the selected
-		 * task should have access to the memory reserves.
-		 */
-		mark_oom_victim(selected);
-		task_unlock(selected);
-		lowmem_print(1, "send sigkill to %d (%s), adj %hd, size %d\n",
-			     selected->pid, selected->comm,
-			     selected_oom_score_adj, selected_tasksize);
-		lowmem_deathpending_timeout = jiffies + HZ;
-		send_sig(SIGKILL, selected, 0);
-		rem += selected_tasksize;
-	}
-out:
-	lowmem_print(4, "lowmem_scan %lu, %x, return %lu\n",
-		     sc->nr_to_scan, sc->gfp_mask, rem);
-	rcu_read_unlock();
-	return rem;
-}
-
-static struct shrinker lowmem_shrinker = {
-	.scan_objects = lowmem_scan,
-	.count_objects = lowmem_count,
-	.seeks = DEFAULT_SEEKS * 16
-};
-
-static int __init lowmem_init(void)
-{
-	register_shrinker(&lowmem_shrinker);
-	return 0;
-}
-
-static void __exit lowmem_exit(void)
-{
-	unregister_shrinker(&lowmem_shrinker);
-}
-
-module_param_named(cost, lowmem_shrinker.seeks, int, S_IRUGO | S_IWUSR);
-module_param_array_named(adj, lowmem_adj, short, &lowmem_adj_size,
-			 S_IRUGO | S_IWUSR);
-module_param_array_named(minfree, lowmem_minfree, uint, &lowmem_minfree_size,
-			 S_IRUGO | S_IWUSR);
-module_param_named(debug_level, lowmem_debug_level, uint, S_IRUGO | S_IWUSR);
-
-module_init(lowmem_init);
-module_exit(lowmem_exit);
-
-MODULE_LICENSE("GPL");
-
diff --git a/drivers/staging/android/sw_sync.c b/drivers/staging/android/sw_sync.c
deleted file mode 100644
index c90838d36953..000000000000
--- a/drivers/staging/android/sw_sync.c
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
- * drivers/base/sw_sync.c
- *
- * Copyright (C) 2012 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/module.h>
-#include <linux/syscalls.h>
-#include <linux/uaccess.h>
-
-#include "sw_sync.h"
-
-static int sw_sync_cmp(u32 a, u32 b)
-{
-	if (a == b)
-		return 0;
-
-	return ((s32)a - (s32)b) < 0 ? -1 : 1;
-}
-
-struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value)
-{
-	struct sw_sync_pt *pt;
-
-	pt = (struct sw_sync_pt *)
-		sync_pt_create(&obj->obj, sizeof(struct sw_sync_pt));
-
-	pt->value = value;
-
-	return (struct sync_pt *)pt;
-}
-EXPORT_SYMBOL(sw_sync_pt_create);
-
-static struct sync_pt *sw_sync_pt_dup(struct sync_pt *sync_pt)
-{
-	struct sw_sync_pt *pt = (struct sw_sync_pt *)sync_pt;
-	struct sw_sync_timeline *obj =
-		(struct sw_sync_timeline *)sync_pt_parent(sync_pt);
-
-	return (struct sync_pt *)sw_sync_pt_create(obj, pt->value);
-}
-
-static int sw_sync_pt_has_signaled(struct sync_pt *sync_pt)
-{
-	struct sw_sync_pt *pt = (struct sw_sync_pt *)sync_pt;
-	struct sw_sync_timeline *obj =
-		(struct sw_sync_timeline *)sync_pt_parent(sync_pt);
-
-	return sw_sync_cmp(obj->value, pt->value) >= 0;
-}
-
-static int sw_sync_pt_compare(struct sync_pt *a, struct sync_pt *b)
-{
-	struct sw_sync_pt *pt_a = (struct sw_sync_pt *)a;
-	struct sw_sync_pt *pt_b = (struct sw_sync_pt *)b;
-
-	return sw_sync_cmp(pt_a->value, pt_b->value);
-}
-
-static int sw_sync_fill_driver_data(struct sync_pt *sync_pt,
-				    void *data, int size)
-{
-	struct sw_sync_pt *pt = (struct sw_sync_pt *)sync_pt;
-
-	if (size < sizeof(pt->value))
-		return -ENOMEM;
-
-	memcpy(data, &pt->value, sizeof(pt->value));
-
-	return sizeof(pt->value);
-}
-
-static void sw_sync_timeline_value_str(struct sync_timeline *sync_timeline,
-				       char *str, int size)
-{
-	struct sw_sync_timeline *timeline =
-		(struct sw_sync_timeline *)sync_timeline;
-	snprintf(str, size, "%d", timeline->value);
-}
-
-static void sw_sync_pt_value_str(struct sync_pt *sync_pt,
-				 char *str, int size)
-{
-	struct sw_sync_pt *pt = (struct sw_sync_pt *)sync_pt;
-
-	snprintf(str, size, "%d", pt->value);
-}
-
-static struct sync_timeline_ops sw_sync_timeline_ops = {
-	.driver_name = "sw_sync",
-	.dup = sw_sync_pt_dup,
-	.has_signaled = sw_sync_pt_has_signaled,
-	.compare = sw_sync_pt_compare,
-	.fill_driver_data = sw_sync_fill_driver_data,
-	.timeline_value_str = sw_sync_timeline_value_str,
-	.pt_value_str = sw_sync_pt_value_str,
-};
-
-struct sw_sync_timeline *sw_sync_timeline_create(const char *name)
-{
-	struct sw_sync_timeline *obj = (struct sw_sync_timeline *)
-		sync_timeline_create(&sw_sync_timeline_ops,
-				     sizeof(struct sw_sync_timeline),
-				     name);
-
-	return obj;
-}
-EXPORT_SYMBOL(sw_sync_timeline_create);
-
-void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc)
-{
-	obj->value += inc;
-
-	sync_timeline_signal(&obj->obj);
-}
-EXPORT_SYMBOL(sw_sync_timeline_inc);
-
-#ifdef CONFIG_SW_SYNC_USER
-/* *WARNING*
- *
- * improper use of this can result in deadlocking kernel drivers from userspace.
- */
-
-/* opening sw_sync create a new sync obj */
-static int sw_sync_open(struct inode *inode, struct file *file)
-{
-	struct sw_sync_timeline *obj;
-	char task_comm[TASK_COMM_LEN];
-
-	get_task_comm(task_comm, current);
-
-	obj = sw_sync_timeline_create(task_comm);
-	if (obj == NULL)
-		return -ENOMEM;
-
-	file->private_data = obj;
-
-	return 0;
-}
-
-static int sw_sync_release(struct inode *inode, struct file *file)
-{
-	struct sw_sync_timeline *obj = file->private_data;
-
-	sync_timeline_destroy(&obj->obj);
-	return 0;
-}
-
-static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj,
-				       unsigned long arg)
-{
-	int fd = get_unused_fd_flags(O_CLOEXEC);
-	int err;
-	struct sync_pt *pt;
-	struct sync_fence *fence;
-	struct sw_sync_create_fence_data data;
-
-	if (fd < 0)
-		return fd;
-
-	if (copy_from_user(&data, (void __user *)arg, sizeof(data))) {
-		err = -EFAULT;
-		goto err;
-	}
-
-	pt = sw_sync_pt_create(obj, data.value);
-	if (pt == NULL) {
-		err = -ENOMEM;
-		goto err;
-	}
-
-	data.name[sizeof(data.name) - 1] = '\0';
-	fence = sync_fence_create(data.name, pt);
-	if (fence == NULL) {
-		sync_pt_free(pt);
-		err = -ENOMEM;
-		goto err;
-	}
-
-	data.fence = fd;
-	if (copy_to_user((void __user *)arg, &data, sizeof(data))) {
-		sync_fence_put(fence);
-		err = -EFAULT;
-		goto err;
-	}
-
-	sync_fence_install(fence, fd);
-
-	return 0;
-
-err:
-	put_unused_fd(fd);
-	return err;
-}
-
-static long sw_sync_ioctl_inc(struct sw_sync_timeline *obj, unsigned long arg)
-{
-	u32 value;
-
-	if (copy_from_user(&value, (void __user *)arg, sizeof(value)))
-		return -EFAULT;
-
-	sw_sync_timeline_inc(obj, value);
-
-	return 0;
-}
-
-static long sw_sync_ioctl(struct file *file, unsigned int cmd,
-			  unsigned long arg)
-{
-	struct sw_sync_timeline *obj = file->private_data;
-
-	switch (cmd) {
-	case SW_SYNC_IOC_CREATE_FENCE:
-		return sw_sync_ioctl_create_fence(obj, arg);
-
-	case SW_SYNC_IOC_INC:
-		return sw_sync_ioctl_inc(obj, arg);
-
-	default:
-		return -ENOTTY;
-	}
-}
-
-static const struct file_operations sw_sync_fops = {
-	.owner = THIS_MODULE,
-	.open = sw_sync_open,
-	.release = sw_sync_release,
-	.unlocked_ioctl = sw_sync_ioctl,
-	.compat_ioctl = sw_sync_ioctl,
-};
-
-static struct miscdevice sw_sync_dev = {
-	.minor	= MISC_DYNAMIC_MINOR,
-	.name	= "sw_sync",
-	.fops	= &sw_sync_fops,
-};
-
-static int __init sw_sync_device_init(void)
-{
-	return misc_register(&sw_sync_dev);
-}
-
-static void __exit sw_sync_device_remove(void)
-{
-	misc_deregister(&sw_sync_dev);
-}
-
-module_init(sw_sync_device_init);
-module_exit(sw_sync_device_remove);
-
-#endif /* CONFIG_SW_SYNC_USER */
diff --git a/drivers/staging/android/sw_sync.h b/drivers/staging/android/sw_sync.h
deleted file mode 100644
index c87ae9ebf267..000000000000
--- a/drivers/staging/android/sw_sync.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * include/linux/sw_sync.h
- *
- * Copyright (C) 2012 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _LINUX_SW_SYNC_H
-#define _LINUX_SW_SYNC_H
-
-#include <linux/types.h>
-#include <linux/kconfig.h>
-#include "sync.h"
-#include "uapi/sw_sync.h"
-
-struct sw_sync_timeline {
-	struct	sync_timeline	obj;
-
-	u32			value;
-};
-
-struct sw_sync_pt {
-	struct sync_pt		pt;
-
-	u32			value;
-};
-
-#if IS_ENABLED(CONFIG_SW_SYNC)
-struct sw_sync_timeline *sw_sync_timeline_create(const char *name);
-void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc);
-
-struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value);
-#else
-static inline struct sw_sync_timeline *sw_sync_timeline_create(const char *name)
-{
-	return NULL;
-}
-
-static inline void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc)
-{
-}
-
-static inline struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj,
-						u32 value)
-{
-	return NULL;
-}
-#endif /* IS_ENABLED(CONFIG_SW_SYNC) */
-
-#endif /* _LINUX_SW_SYNC_H */
diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
deleted file mode 100644
index f83e00c78051..000000000000
--- a/drivers/staging/android/sync.c
+++ /dev/null
@@ -1,729 +0,0 @@
-/*
- * drivers/base/sync.c
- *
- * Copyright (C) 2012 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/debugfs.h>
-#include <linux/export.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/poll.h>
-#include <linux/sched.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/anon_inodes.h>
-
-#include "sync.h"
-
-#define CREATE_TRACE_POINTS
-#include "trace/sync.h"
-
-static const struct fence_ops android_fence_ops;
-static const struct file_operations sync_fence_fops;
-
-struct sync_timeline *sync_timeline_create(const struct sync_timeline_ops *ops,
-					   int size, const char *name)
-{
-	struct sync_timeline *obj;
-
-	if (size < sizeof(struct sync_timeline))
-		return NULL;
-
-	obj = kzalloc(size, GFP_KERNEL);
-	if (obj == NULL)
-		return NULL;
-
-	kref_init(&obj->kref);
-	obj->ops = ops;
-	obj->context = fence_context_alloc(1);
-	strlcpy(obj->name, name, sizeof(obj->name));
-
-	INIT_LIST_HEAD(&obj->child_list_head);
-	INIT_LIST_HEAD(&obj->active_list_head);
-	spin_lock_init(&obj->child_list_lock);
-
-	sync_timeline_debug_add(obj);
-
-	return obj;
-}
-EXPORT_SYMBOL(sync_timeline_create);
-
-static void sync_timeline_free(struct kref *kref)
-{
-	struct sync_timeline *obj =
-		container_of(kref, struct sync_timeline, kref);
-
-	sync_timeline_debug_remove(obj);
-
-	if (obj->ops->release_obj)
-		obj->ops->release_obj(obj);
-
-	kfree(obj);
-}
-
-static void sync_timeline_get(struct sync_timeline *obj)
-{
-	kref_get(&obj->kref);
-}
-
-static void sync_timeline_put(struct sync_timeline *obj)
-{
-	kref_put(&obj->kref, sync_timeline_free);
-}
-
-void sync_timeline_destroy(struct sync_timeline *obj)
-{
-	obj->destroyed = true;
-	/*
-	 * Ensure timeline is marked as destroyed before
-	 * changing timeline's fences status.
-	 */
-	smp_wmb();
-
-	/*
-	 * signal any children that their parent is going away.
-	 */
-	sync_timeline_signal(obj);
-	sync_timeline_put(obj);
-}
-EXPORT_SYMBOL(sync_timeline_destroy);
-
-void sync_timeline_signal(struct sync_timeline *obj)
-{
-	unsigned long flags;
-	LIST_HEAD(signaled_pts);
-	struct sync_pt *pt, *next;
-
-	trace_sync_timeline(obj);
-
-	spin_lock_irqsave(&obj->child_list_lock, flags);
-
-	list_for_each_entry_safe(pt, next, &obj->active_list_head,
-				 active_list) {
-		if (fence_is_signaled_locked(&pt->base))
-			list_del_init(&pt->active_list);
-	}
-
-	spin_unlock_irqrestore(&obj->child_list_lock, flags);
-}
-EXPORT_SYMBOL(sync_timeline_signal);
-
-struct sync_pt *sync_pt_create(struct sync_timeline *obj, int size)
-{
-	unsigned long flags;
-	struct sync_pt *pt;
-
-	if (size < sizeof(struct sync_pt))
-		return NULL;
-
-	pt = kzalloc(size, GFP_KERNEL);
-	if (pt == NULL)
-		return NULL;
-
-	spin_lock_irqsave(&obj->child_list_lock, flags);
-	sync_timeline_get(obj);
-	fence_init(&pt->base, &android_fence_ops, &obj->child_list_lock,
-		   obj->context, ++obj->value);
-	list_add_tail(&pt->child_list, &obj->child_list_head);
-	INIT_LIST_HEAD(&pt->active_list);
-	spin_unlock_irqrestore(&obj->child_list_lock, flags);
-	return pt;
-}
-EXPORT_SYMBOL(sync_pt_create);
-
-void sync_pt_free(struct sync_pt *pt)
-{
-	fence_put(&pt->base);
-}
-EXPORT_SYMBOL(sync_pt_free);
-
-static struct sync_fence *sync_fence_alloc(int size, const char *name)
-{
-	struct sync_fence *fence;
-
-	fence = kzalloc(size, GFP_KERNEL);
-	if (fence == NULL)
-		return NULL;
-
-	fence->file = anon_inode_getfile("sync_fence", &sync_fence_fops,
-					 fence, 0);
-	if (IS_ERR(fence->file))
-		goto err;
-
-	kref_init(&fence->kref);
-	strlcpy(fence->name, name, sizeof(fence->name));
-
-	init_waitqueue_head(&fence->wq);
-
-	return fence;
-
-err:
-	kfree(fence);
-	return NULL;
-}
-
-static void fence_check_cb_func(struct fence *f, struct fence_cb *cb)
-{
-	struct sync_fence_cb *check;
-	struct sync_fence *fence;
-
-	check = container_of(cb, struct sync_fence_cb, cb);
-	fence = check->fence;
-
-	if (atomic_dec_and_test(&fence->status))
-		wake_up_all(&fence->wq);
-}
-
-/* TODO: implement a create which takes more that one sync_pt */
-struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt)
-{
-	struct sync_fence *fence;
-
-	fence = sync_fence_alloc(offsetof(struct sync_fence, cbs[1]), name);
-	if (fence == NULL)
-		return NULL;
-
-	fence->num_fences = 1;
-	atomic_set(&fence->status, 1);
-
-	fence->cbs[0].sync_pt = &pt->base;
-	fence->cbs[0].fence = fence;
-	if (fence_add_callback(&pt->base, &fence->cbs[0].cb,
-			       fence_check_cb_func))
-		atomic_dec(&fence->status);
-
-	sync_fence_debug_add(fence);
-
-	return fence;
-}
-EXPORT_SYMBOL(sync_fence_create);
-
-struct sync_fence *sync_fence_fdget(int fd)
-{
-	struct file *file = fget(fd);
-
-	if (file == NULL)
-		return NULL;
-
-	if (file->f_op != &sync_fence_fops)
-		goto err;
-
-	return file->private_data;
-
-err:
-	fput(file);
-	return NULL;
-}
-EXPORT_SYMBOL(sync_fence_fdget);
-
-void sync_fence_put(struct sync_fence *fence)
-{
-	fput(fence->file);
-}
-EXPORT_SYMBOL(sync_fence_put);
-
-void sync_fence_install(struct sync_fence *fence, int fd)
-{
-	fd_install(fd, fence->file);
-}
-EXPORT_SYMBOL(sync_fence_install);
-
-static void sync_fence_add_pt(struct sync_fence *fence,
-			      int *i, struct fence *pt)
-{
-	fence->cbs[*i].sync_pt = pt;
-	fence->cbs[*i].fence = fence;
-
-	if (!fence_add_callback(pt, &fence->cbs[*i].cb, fence_check_cb_func)) {
-		fence_get(pt);
-		(*i)++;
-	}
-}
-
-struct sync_fence *sync_fence_merge(const char *name,
-				    struct sync_fence *a, struct sync_fence *b)
-{
-	int num_fences = a->num_fences + b->num_fences;
-	struct sync_fence *fence;
-	int i, i_a, i_b;
-	unsigned long size = offsetof(struct sync_fence, cbs[num_fences]);
-
-	fence = sync_fence_alloc(size, name);
-	if (fence == NULL)
-		return NULL;
-
-	atomic_set(&fence->status, num_fences);
-
-	/*
-	 * Assume sync_fence a and b are both ordered and have no
-	 * duplicates with the same context.
-	 *
-	 * If a sync_fence can only be created with sync_fence_merge
-	 * and sync_fence_create, this is a reasonable assumption.
-	 */
-	for (i = i_a = i_b = 0; i_a < a->num_fences && i_b < b->num_fences; ) {
-		struct fence *pt_a = a->cbs[i_a].sync_pt;
-		struct fence *pt_b = b->cbs[i_b].sync_pt;
-
-		if (pt_a->context < pt_b->context) {
-			sync_fence_add_pt(fence, &i, pt_a);
-
-			i_a++;
-		} else if (pt_a->context > pt_b->context) {
-			sync_fence_add_pt(fence, &i, pt_b);
-
-			i_b++;
-		} else {
-			if (pt_a->seqno - pt_b->seqno <= INT_MAX)
-				sync_fence_add_pt(fence, &i, pt_a);
-			else
-				sync_fence_add_pt(fence, &i, pt_b);
-
-			i_a++;
-			i_b++;
-		}
-	}
-
-	for (; i_a < a->num_fences; i_a++)
-		sync_fence_add_pt(fence, &i, a->cbs[i_a].sync_pt);
-
-	for (; i_b < b->num_fences; i_b++)
-		sync_fence_add_pt(fence, &i, b->cbs[i_b].sync_pt);
-
-	if (num_fences > i)
-		atomic_sub(num_fences - i, &fence->status);
-	fence->num_fences = i;
-
-	sync_fence_debug_add(fence);
-	return fence;
-}
-EXPORT_SYMBOL(sync_fence_merge);
-
-int sync_fence_wake_up_wq(wait_queue_t *curr, unsigned mode,
-				 int wake_flags, void *key)
-{
-	struct sync_fence_waiter *wait;
-
-	wait = container_of(curr, struct sync_fence_waiter, work);
-	list_del_init(&wait->work.task_list);
-
-	wait->callback(wait->work.private, wait);
-	return 1;
-}
-
-int sync_fence_wait_async(struct sync_fence *fence,
-			  struct sync_fence_waiter *waiter)
-{
-	int err = atomic_read(&fence->status);
-	unsigned long flags;
-
-	if (err < 0)
-		return err;
-
-	if (!err)
-		return 1;
-
-	init_waitqueue_func_entry(&waiter->work, sync_fence_wake_up_wq);
-	waiter->work.private = fence;
-
-	spin_lock_irqsave(&fence->wq.lock, flags);
-	err = atomic_read(&fence->status);
-	if (err > 0)
-		__add_wait_queue_tail(&fence->wq, &waiter->work);
-	spin_unlock_irqrestore(&fence->wq.lock, flags);
-
-	if (err < 0)
-		return err;
-
-	return !err;
-}
-EXPORT_SYMBOL(sync_fence_wait_async);
-
-int sync_fence_cancel_async(struct sync_fence *fence,
-			     struct sync_fence_waiter *waiter)
-{
-	unsigned long flags;
-	int ret = 0;
-
-	spin_lock_irqsave(&fence->wq.lock, flags);
-	if (!list_empty(&waiter->work.task_list))
-		list_del_init(&waiter->work.task_list);
-	else
-		ret = -ENOENT;
-	spin_unlock_irqrestore(&fence->wq.lock, flags);
-	return ret;
-}
-EXPORT_SYMBOL(sync_fence_cancel_async);
-
-int sync_fence_wait(struct sync_fence *fence, long timeout)
-{
-	long ret;
-	int i;
-
-	if (timeout < 0)
-		timeout = MAX_SCHEDULE_TIMEOUT;
-	else
-		timeout = msecs_to_jiffies(timeout);
-
-	trace_sync_wait(fence, 1);
-	for (i = 0; i < fence->num_fences; ++i)
-		trace_sync_pt(fence->cbs[i].sync_pt);
-	ret = wait_event_interruptible_timeout(fence->wq,
-					       atomic_read(&fence->status) <= 0,
-					       timeout);
-	trace_sync_wait(fence, 0);
-
-	if (ret < 0) {
-		return ret;
-	} else if (ret == 0) {
-		if (timeout) {
-			pr_info("fence timeout on [%p] after %dms\n", fence,
-				jiffies_to_msecs(timeout));
-			sync_dump();
-		}
-		return -ETIME;
-	}
-
-	ret = atomic_read(&fence->status);
-	if (ret) {
-		pr_info("fence error %ld on [%p]\n", ret, fence);
-		sync_dump();
-	}
-	return ret;
-}
-EXPORT_SYMBOL(sync_fence_wait);
-
-static const char *android_fence_get_driver_name(struct fence *fence)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-
-	return parent->ops->driver_name;
-}
-
-static const char *android_fence_get_timeline_name(struct fence *fence)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-
-	return parent->name;
-}
-
-static void android_fence_release(struct fence *fence)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-	unsigned long flags;
-
-	spin_lock_irqsave(fence->lock, flags);
-	list_del(&pt->child_list);
-	if (WARN_ON_ONCE(!list_empty(&pt->active_list)))
-		list_del(&pt->active_list);
-	spin_unlock_irqrestore(fence->lock, flags);
-
-	if (parent->ops->free_pt)
-		parent->ops->free_pt(pt);
-
-	sync_timeline_put(parent);
-	fence_free(&pt->base);
-}
-
-static bool android_fence_signaled(struct fence *fence)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-	int ret;
-
-	ret = parent->ops->has_signaled(pt);
-	if (ret < 0)
-		fence->status = ret;
-	return ret;
-}
-
-static bool android_fence_enable_signaling(struct fence *fence)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-
-	if (android_fence_signaled(fence))
-		return false;
-
-	list_add_tail(&pt->active_list, &parent->active_list_head);
-	return true;
-}
-
-static int android_fence_fill_driver_data(struct fence *fence,
-					  void *data, int size)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-
-	if (!parent->ops->fill_driver_data)
-		return 0;
-	return parent->ops->fill_driver_data(pt, data, size);
-}
-
-static void android_fence_value_str(struct fence *fence,
-				    char *str, int size)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-
-	if (!parent->ops->pt_value_str) {
-		if (size)
-			*str = 0;
-		return;
-	}
-	parent->ops->pt_value_str(pt, str, size);
-}
-
-static void android_fence_timeline_value_str(struct fence *fence,
-					     char *str, int size)
-{
-	struct sync_pt *pt = container_of(fence, struct sync_pt, base);
-	struct sync_timeline *parent = sync_pt_parent(pt);
-
-	if (!parent->ops->timeline_value_str) {
-		if (size)
-			*str = 0;
-		return;
-	}
-	parent->ops->timeline_value_str(parent, str, size);
-}
-
-static const struct fence_ops android_fence_ops = {
-	.get_driver_name = android_fence_get_driver_name,
-	.get_timeline_name = android_fence_get_timeline_name,
-	.enable_signaling = android_fence_enable_signaling,
-	.signaled = android_fence_signaled,
-	.wait = fence_default_wait,
-	.release = android_fence_release,
-	.fill_driver_data = android_fence_fill_driver_data,
-	.fence_value_str = android_fence_value_str,
-	.timeline_value_str = android_fence_timeline_value_str,
-};
-
-static void sync_fence_free(struct kref *kref)
-{
-	struct sync_fence *fence = container_of(kref, struct sync_fence, kref);
-	int i, status = atomic_read(&fence->status);
-
-	for (i = 0; i < fence->num_fences; ++i) {
-		if (status)
-			fence_remove_callback(fence->cbs[i].sync_pt,
-					      &fence->cbs[i].cb);
-		fence_put(fence->cbs[i].sync_pt);
-	}
-
-	kfree(fence);
-}
-
-static int sync_fence_release(struct inode *inode, struct file *file)
-{
-	struct sync_fence *fence = file->private_data;
-
-	sync_fence_debug_remove(fence);
-
-	kref_put(&fence->kref, sync_fence_free);
-	return 0;
-}
-
-static unsigned int sync_fence_poll(struct file *file, poll_table *wait)
-{
-	struct sync_fence *fence = file->private_data;
-	int status;
-
-	poll_wait(file, &fence->wq, wait);
-
-	status = atomic_read(&fence->status);
-
-	if (!status)
-		return POLLIN;
-	else if (status < 0)
-		return POLLERR;
-	return 0;
-}
-
-static long sync_fence_ioctl_wait(struct sync_fence *fence, unsigned long arg)
-{
-	__s32 value;
-
-	if (copy_from_user(&value, (void __user *)arg, sizeof(value)))
-		return -EFAULT;
-
-	return sync_fence_wait(fence, value);
-}
-
-static long sync_fence_ioctl_merge(struct sync_fence *fence, unsigned long arg)
-{
-	int fd = get_unused_fd_flags(O_CLOEXEC);
-	int err;
-	struct sync_fence *fence2, *fence3;
-	struct sync_merge_data data;
-
-	if (fd < 0)
-		return fd;
-
-	if (copy_from_user(&data, (void __user *)arg, sizeof(data))) {
-		err = -EFAULT;
-		goto err_put_fd;
-	}
-
-	fence2 = sync_fence_fdget(data.fd2);
-	if (fence2 == NULL) {
-		err = -ENOENT;
-		goto err_put_fd;
-	}
-
-	data.name[sizeof(data.name) - 1] = '\0';
-	fence3 = sync_fence_merge(data.name, fence, fence2);
-	if (fence3 == NULL) {
-		err = -ENOMEM;
-		goto err_put_fence2;
-	}
-
-	data.fence = fd;
-	if (copy_to_user((void __user *)arg, &data, sizeof(data))) {
-		err = -EFAULT;
-		goto err_put_fence3;
-	}
-
-	sync_fence_install(fence3, fd);
-	sync_fence_put(fence2);
-	return 0;
-
-err_put_fence3:
-	sync_fence_put(fence3);
-
-err_put_fence2:
-	sync_fence_put(fence2);
-
-err_put_fd:
-	put_unused_fd(fd);
-	return err;
-}
-
-static int sync_fill_pt_info(struct fence *fence, void *data, int size)
-{
-	struct sync_pt_info *info = data;
-	int ret;
-
-	if (size < sizeof(struct sync_pt_info))
-		return -ENOMEM;
-
-	info->len = sizeof(struct sync_pt_info);
-
-	if (fence->ops->fill_driver_data) {
-		ret = fence->ops->fill_driver_data(fence, info->driver_data,
-						   size - sizeof(*info));
-		if (ret < 0)
-			return ret;
-
-		info->len += ret;
-	}
-
-	strlcpy(info->obj_name, fence->ops->get_timeline_name(fence),
-		sizeof(info->obj_name));
-	strlcpy(info->driver_name, fence->ops->get_driver_name(fence),
-		sizeof(info->driver_name));
-	if (fence_is_signaled(fence))
-		info->status = fence->status >= 0 ? 1 : fence->status;
-	else
-		info->status = 0;
-	info->timestamp_ns = ktime_to_ns(fence->timestamp);
-
-	return info->len;
-}
-
-static long sync_fence_ioctl_fence_info(struct sync_fence *fence,
-					unsigned long arg)
-{
-	struct sync_fence_info_data *data;
-	__u32 size;
-	__u32 len = 0;
-	int ret, i;
-
-	if (copy_from_user(&size, (void __user *)arg, sizeof(size)))
-		return -EFAULT;
-
-	if (size < sizeof(struct sync_fence_info_data))
-		return -EINVAL;
-
-	if (size > 4096)
-		size = 4096;
-
-	data = kzalloc(size, GFP_KERNEL);
-	if (data == NULL)
-		return -ENOMEM;
-
-	strlcpy(data->name, fence->name, sizeof(data->name));
-	data->status = atomic_read(&fence->status);
-	if (data->status >= 0)
-		data->status = !data->status;
-
-	len = sizeof(struct sync_fence_info_data);
-
-	for (i = 0; i < fence->num_fences; ++i) {
-		struct fence *pt = fence->cbs[i].sync_pt;
-
-		ret = sync_fill_pt_info(pt, (u8 *)data + len, size - len);
-
-		if (ret < 0)
-			goto out;
-
-		len += ret;
-	}
-
-	data->len = len;
-
-	if (copy_to_user((void __user *)arg, data, len))
-		ret = -EFAULT;
-	else
-		ret = 0;
-
-out:
-	kfree(data);
-
-	return ret;
-}
-
-static long sync_fence_ioctl(struct file *file, unsigned int cmd,
-			     unsigned long arg)
-{
-	struct sync_fence *fence = file->private_data;
-
-	switch (cmd) {
-	case SYNC_IOC_WAIT:
-		return sync_fence_ioctl_wait(fence, arg);
-
-	case SYNC_IOC_MERGE:
-		return sync_fence_ioctl_merge(fence, arg);
-
-	case SYNC_IOC_FENCE_INFO:
-		return sync_fence_ioctl_fence_info(fence, arg);
-
-	default:
-		return -ENOTTY;
-	}
-}
-
-static const struct file_operations sync_fence_fops = {
-	.release = sync_fence_release,
-	.poll = sync_fence_poll,
-	.unlocked_ioctl = sync_fence_ioctl,
-	.compat_ioctl = sync_fence_ioctl,
-};
-
diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h
deleted file mode 100644
index 61f8a3aede96..000000000000
--- a/drivers/staging/android/sync.h
+++ /dev/null
@@ -1,356 +0,0 @@
-/*
- * include/linux/sync.h
- *
- * Copyright (C) 2012 Google, Inc.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _LINUX_SYNC_H
-#define _LINUX_SYNC_H
-
-#include <linux/types.h>
-#include <linux/kref.h>
-#include <linux/ktime.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/wait.h>
-#include <linux/fence.h>
-
-#include "uapi/sync.h"
-
-struct sync_timeline;
-struct sync_pt;
-struct sync_fence;
-
-/**
- * struct sync_timeline_ops - sync object implementation ops
- * @driver_name:	name of the implementation
- * @dup:		duplicate a sync_pt
- * @has_signaled:	returns:
- *			  1 if pt has signaled
- *			  0 if pt has not signaled
- *			 <0 on error
- * @compare:		returns:
- *			  1 if b will signal before a
- *			  0 if a and b will signal at the same time
- *			 -1 if a will signal before b
- * @free_pt:		called before sync_pt is freed
- * @release_obj:	called before sync_timeline is freed
- * @fill_driver_data:	write implementation specific driver data to data.
- *			  should return an error if there is not enough room
- *			  as specified by size.  This information is returned
- *			  to userspace by SYNC_IOC_FENCE_INFO.
- * @timeline_value_str: fill str with the value of the sync_timeline's counter
- * @pt_value_str:	fill str with the value of the sync_pt
- */
-struct sync_timeline_ops {
-	const char *driver_name;
-
-	/* required */
-	struct sync_pt * (*dup)(struct sync_pt *pt);
-
-	/* required */
-	int (*has_signaled)(struct sync_pt *pt);
-
-	/* required */
-	int (*compare)(struct sync_pt *a, struct sync_pt *b);
-
-	/* optional */
-	void (*free_pt)(struct sync_pt *sync_pt);
-
-	/* optional */
-	void (*release_obj)(struct sync_timeline *sync_timeline);
-
-	/* optional */
-	int (*fill_driver_data)(struct sync_pt *syncpt, void *data, int size);
-
-	/* optional */
-	void (*timeline_value_str)(struct sync_timeline *timeline, char *str,
-				   int size);
-
-	/* optional */
-	void (*pt_value_str)(struct sync_pt *pt, char *str, int size);
-};
-
-/**
- * struct sync_timeline - sync object
- * @kref:		reference count on fence.
- * @ops:		ops that define the implementation of the sync_timeline
- * @name:		name of the sync_timeline. Useful for debugging
- * @destroyed:		set when sync_timeline is destroyed
- * @child_list_head:	list of children sync_pts for this sync_timeline
- * @child_list_lock:	lock protecting @child_list_head, destroyed, and
- *			  sync_pt.status
- * @active_list_head:	list of active (unsignaled/errored) sync_pts
- * @sync_timeline_list:	membership in global sync_timeline_list
- */
-struct sync_timeline {
-	struct kref		kref;
-	const struct sync_timeline_ops	*ops;
-	char			name[32];
-
-	/* protected by child_list_lock */
-	bool			destroyed;
-	int			context, value;
-
-	struct list_head	child_list_head;
-	spinlock_t		child_list_lock;
-
-	struct list_head	active_list_head;
-
-#ifdef CONFIG_DEBUG_FS
-	struct list_head	sync_timeline_list;
-#endif
-};
-
-/**
- * struct sync_pt - sync point
- * @fence:		base fence class
- * @child_list:		membership in sync_timeline.child_list_head
- * @active_list:	membership in sync_timeline.active_list_head
- * @signaled_list:	membership in temporary signaled_list on stack
- * @fence:		sync_fence to which the sync_pt belongs
- * @pt_list:		membership in sync_fence.pt_list_head
- * @status:		1: signaled, 0:active, <0: error
- * @timestamp:		time which sync_pt status transitioned from active to
- *			  signaled or error.
- */
-struct sync_pt {
-	struct fence base;
-
-	struct list_head	child_list;
-	struct list_head	active_list;
-};
-
-static inline struct sync_timeline *sync_pt_parent(struct sync_pt *pt)
-{
-	return container_of(pt->base.lock, struct sync_timeline,
-			    child_list_lock);
-}
-
-struct sync_fence_cb {
-	struct fence_cb cb;
-	struct fence *sync_pt;
-	struct sync_fence *fence;
-};
-
-/**
- * struct sync_fence - sync fence
- * @file:		file representing this fence
- * @kref:		reference count on fence.
- * @name:		name of sync_fence.  Useful for debugging
- * @pt_list_head:	list of sync_pts in the fence.  immutable once fence
- *			  is created
- * @status:		0: signaled, >0:active, <0: error
- *
- * @wq:			wait queue for fence signaling
- * @sync_fence_list:	membership in global fence list
- */
-struct sync_fence {
-	struct file		*file;
-	struct kref		kref;
-	char			name[32];
-#ifdef CONFIG_DEBUG_FS
-	struct list_head	sync_fence_list;
-#endif
-	int num_fences;
-
-	wait_queue_head_t	wq;
-	atomic_t		status;
-
-	struct sync_fence_cb	cbs[];
-};
-
-struct sync_fence_waiter;
-typedef void (*sync_callback_t)(struct sync_fence *fence,
-				struct sync_fence_waiter *waiter);
-
-/**
- * struct sync_fence_waiter - metadata for asynchronous waiter on a fence
- * @waiter_list:	membership in sync_fence.waiter_list_head
- * @callback:		function pointer to call when fence signals
- * @callback_data:	pointer to pass to @callback
- */
-struct sync_fence_waiter {
-	wait_queue_t work;
-	sync_callback_t callback;
-};
-
-static inline void sync_fence_waiter_init(struct sync_fence_waiter *waiter,
-					  sync_callback_t callback)
-{
-	INIT_LIST_HEAD(&waiter->work.task_list);
-	waiter->callback = callback;
-}
-
-/*
- * API for sync_timeline implementers
- */
-
-/**
- * sync_timeline_create() - creates a sync object
- * @ops:	specifies the implementation ops for the object
- * @size:	size to allocate for this obj
- * @name:	sync_timeline name
- *
- * Creates a new sync_timeline which will use the implementation specified by
- * @ops.  @size bytes will be allocated allowing for implementation specific
- * data to be kept after the generic sync_timeline struct.
- */
-struct sync_timeline *sync_timeline_create(const struct sync_timeline_ops *ops,
-					   int size, const char *name);
-
-/**
- * sync_timeline_destroy() - destroys a sync object
- * @obj:	sync_timeline to destroy
- *
- * A sync implementation should call this when the @obj is going away
- * (i.e. module unload.)  @obj won't actually be freed until all its children
- * sync_pts are freed.
- */
-void sync_timeline_destroy(struct sync_timeline *obj);
-
-/**
- * sync_timeline_signal() - signal a status change on a sync_timeline
- * @obj:	sync_timeline to signal
- *
- * A sync implementation should call this any time one of it's sync_pts
- * has signaled or has an error condition.
- */
-void sync_timeline_signal(struct sync_timeline *obj);
-
-/**
- * sync_pt_create() - creates a sync pt
- * @parent:	sync_pt's parent sync_timeline
- * @size:	size to allocate for this pt
- *
- * Creates a new sync_pt as a child of @parent.  @size bytes will be
- * allocated allowing for implementation specific data to be kept after
- * the generic sync_timeline struct.
- */
-struct sync_pt *sync_pt_create(struct sync_timeline *parent, int size);
-
-/**
- * sync_pt_free() - frees a sync pt
- * @pt:		sync_pt to free
- *
- * This should only be called on sync_pts which have been created but
- * not added to a fence.
- */
-void sync_pt_free(struct sync_pt *pt);
-
-/**
- * sync_fence_create() - creates a sync fence
- * @name:	name of fence to create
- * @pt:		sync_pt to add to the fence
- *
- * Creates a fence containg @pt.  Once this is called, the fence takes
- * ownership of @pt.
- */
-struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt);
-
-/*
- * API for sync_fence consumers
- */
-
-/**
- * sync_fence_merge() - merge two fences
- * @name:	name of new fence
- * @a:		fence a
- * @b:		fence b
- *
- * Creates a new fence which contains copies of all the sync_pts in both
- * @a and @b.  @a and @b remain valid, independent fences.
- */
-struct sync_fence *sync_fence_merge(const char *name,
-				    struct sync_fence *a, struct sync_fence *b);
-
-/**
- * sync_fence_fdget() - get a fence from an fd
- * @fd:		fd referencing a fence
- *
- * Ensures @fd references a valid fence, increments the refcount of the backing
- * file, and returns the fence.
- */
-struct sync_fence *sync_fence_fdget(int fd);
-
-/**
- * sync_fence_put() - puts a reference of a sync fence
- * @fence:	fence to put
- *
- * Puts a reference on @fence.  If this is the last reference, the fence and
- * all it's sync_pts will be freed
- */
-void sync_fence_put(struct sync_fence *fence);
-
-/**
- * sync_fence_install() - installs a fence into a file descriptor
- * @fence:	fence to install
- * @fd:		file descriptor in which to install the fence
- *
- * Installs @fence into @fd.  @fd's should be acquired through
- * get_unused_fd_flags(O_CLOEXEC).
- */
-void sync_fence_install(struct sync_fence *fence, int fd);
-
-/**
- * sync_fence_wait_async() - registers and async wait on the fence
- * @fence:		fence to wait on
- * @waiter:		waiter callback struck
- *
- * Returns 1 if @fence has already signaled.
- *
- * Registers a callback to be called when @fence signals or has an error.
- * @waiter should be initialized with sync_fence_waiter_init().
- */
-int sync_fence_wait_async(struct sync_fence *fence,
-			  struct sync_fence_waiter *waiter);
-
-/**
- * sync_fence_cancel_async() - cancels an async wait
- * @fence:		fence to wait on
- * @waiter:		waiter callback struck
- *
- * returns 0 if waiter was removed from fence's async waiter list.
- * returns -ENOENT if waiter was not found on fence's async waiter list.
- *
- * Cancels a previously registered async wait.  Will fail gracefully if
- * @waiter was never registered or if @fence has already signaled @waiter.
- */
-int sync_fence_cancel_async(struct sync_fence *fence,
-			    struct sync_fence_waiter *waiter);
-
-/**
- * sync_fence_wait() - wait on fence
- * @fence:	fence to wait on
- * @tiemout:	timeout in ms
- *
- * Wait for @fence to be signaled or have an error.  Waits indefinitely
- * if @timeout < 0
- */
-int sync_fence_wait(struct sync_fence *fence, long timeout);
-
-#ifdef CONFIG_DEBUG_FS
-
-void sync_timeline_debug_add(struct sync_timeline *obj);
-void sync_timeline_debug_remove(struct sync_timeline *obj);
-void sync_fence_debug_add(struct sync_fence *fence);
-void sync_fence_debug_remove(struct sync_fence *fence);
-void sync_dump(void);
-
-#else
-# define sync_timeline_debug_add(obj)
-# define sync_timeline_debug_remove(obj)
-# define sync_fence_debug_add(fence)
-# define sync_fence_debug_remove(fence)
-# define sync_dump()
-#endif
-int sync_fence_wake_up_wq(wait_queue_t *curr, unsigned mode,
-				 int wake_flags, void *key);
-
-#endif /* _LINUX_SYNC_H */
diff --git a/drivers/staging/android/sync_debug.c b/drivers/staging/android/sync_debug.c
deleted file mode 100644
index 91ed2c4cff45..000000000000
--- a/drivers/staging/android/sync_debug.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * drivers/base/sync.c
- *
- * Copyright (C) 2012 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/debugfs.h>
-#include <linux/export.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/poll.h>
-#include <linux/sched.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/anon_inodes.h>
-#include <linux/time64.h>
-#include "sync.h"
-
-#ifdef CONFIG_DEBUG_FS
-
-static LIST_HEAD(sync_timeline_list_head);
-static DEFINE_SPINLOCK(sync_timeline_list_lock);
-static LIST_HEAD(sync_fence_list_head);
-static DEFINE_SPINLOCK(sync_fence_list_lock);
-
-void sync_timeline_debug_add(struct sync_timeline *obj)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&sync_timeline_list_lock, flags);
-	list_add_tail(&obj->sync_timeline_list, &sync_timeline_list_head);
-	spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
-}
-
-void sync_timeline_debug_remove(struct sync_timeline *obj)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&sync_timeline_list_lock, flags);
-	list_del(&obj->sync_timeline_list);
-	spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
-}
-
-void sync_fence_debug_add(struct sync_fence *fence)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&sync_fence_list_lock, flags);
-	list_add_tail(&fence->sync_fence_list, &sync_fence_list_head);
-	spin_unlock_irqrestore(&sync_fence_list_lock, flags);
-}
-
-void sync_fence_debug_remove(struct sync_fence *fence)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&sync_fence_list_lock, flags);
-	list_del(&fence->sync_fence_list);
-	spin_unlock_irqrestore(&sync_fence_list_lock, flags);
-}
-
-static const char *sync_status_str(int status)
-{
-	if (status == 0)
-		return "signaled";
-
-	if (status > 0)
-		return "active";
-
-	return "error";
-}
-
-static void sync_print_pt(struct seq_file *s, struct sync_pt *pt, bool fence)
-{
-	int status = 1;
-	struct sync_timeline *parent = sync_pt_parent(pt);
-
-	if (fence_is_signaled_locked(&pt->base))
-		status = pt->base.status;
-
-	seq_printf(s, "  %s%spt %s",
-		   fence ? parent->name : "",
-		   fence ? "_" : "",
-		   sync_status_str(status));
-
-	if (status <= 0) {
-		struct timespec64 ts64 =
-			ktime_to_timespec64(pt->base.timestamp);
-
-		seq_printf(s, "@%lld.%09ld", (s64)ts64.tv_sec, ts64.tv_nsec);
-	}
-
-	if (parent->ops->timeline_value_str &&
-	    parent->ops->pt_value_str) {
-		char value[64];
-
-		parent->ops->pt_value_str(pt, value, sizeof(value));
-		seq_printf(s, ": %s", value);
-		if (fence) {
-			parent->ops->timeline_value_str(parent, value,
-						    sizeof(value));
-			seq_printf(s, " / %s", value);
-		}
-	}
-
-	seq_puts(s, "\n");
-}
-
-static void sync_print_obj(struct seq_file *s, struct sync_timeline *obj)
-{
-	struct list_head *pos;
-	unsigned long flags;
-
-	seq_printf(s, "%s %s", obj->name, obj->ops->driver_name);
-
-	if (obj->ops->timeline_value_str) {
-		char value[64];
-
-		obj->ops->timeline_value_str(obj, value, sizeof(value));
-		seq_printf(s, ": %s", value);
-	}
-
-	seq_puts(s, "\n");
-
-	spin_lock_irqsave(&obj->child_list_lock, flags);
-	list_for_each(pos, &obj->child_list_head) {
-		struct sync_pt *pt =
-			container_of(pos, struct sync_pt, child_list);
-		sync_print_pt(s, pt, false);
-	}
-	spin_unlock_irqrestore(&obj->child_list_lock, flags);
-}
-
-static void sync_print_fence(struct seq_file *s, struct sync_fence *fence)
-{
-	wait_queue_t *pos;
-	unsigned long flags;
-	int i;
-
-	seq_printf(s, "[%p] %s: %s\n", fence, fence->name,
-		   sync_status_str(atomic_read(&fence->status)));
-
-	for (i = 0; i < fence->num_fences; ++i) {
-		struct sync_pt *pt =
-			container_of(fence->cbs[i].sync_pt,
-				     struct sync_pt, base);
-
-		sync_print_pt(s, pt, true);
-	}
-
-	spin_lock_irqsave(&fence->wq.lock, flags);
-	list_for_each_entry(pos, &fence->wq.task_list, task_list) {
-		struct sync_fence_waiter *waiter;
-
-		if (pos->func != &sync_fence_wake_up_wq)
-			continue;
-
-		waiter = container_of(pos, struct sync_fence_waiter, work);
-
-		seq_printf(s, "waiter %pF\n", waiter->callback);
-	}
-	spin_unlock_irqrestore(&fence->wq.lock, flags);
-}
-
-static int sync_debugfs_show(struct seq_file *s, void *unused)
-{
-	unsigned long flags;
-	struct list_head *pos;
-
-	seq_puts(s, "objs:\n--------------\n");
-
-	spin_lock_irqsave(&sync_timeline_list_lock, flags);
-	list_for_each(pos, &sync_timeline_list_head) {
-		struct sync_timeline *obj =
-			container_of(pos, struct sync_timeline,
-				     sync_timeline_list);
-
-		sync_print_obj(s, obj);
-		seq_puts(s, "\n");
-	}
-	spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
-
-	seq_puts(s, "fences:\n--------------\n");
-
-	spin_lock_irqsave(&sync_fence_list_lock, flags);
-	list_for_each(pos, &sync_fence_list_head) {
-		struct sync_fence *fence =
-			container_of(pos, struct sync_fence, sync_fence_list);
-
-		sync_print_fence(s, fence);
-		seq_puts(s, "\n");
-	}
-	spin_unlock_irqrestore(&sync_fence_list_lock, flags);
-	return 0;
-}
-
-static int sync_debugfs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, sync_debugfs_show, inode->i_private);
-}
-
-static const struct file_operations sync_debugfs_fops = {
-	.open           = sync_debugfs_open,
-	.read           = seq_read,
-	.llseek         = seq_lseek,
-	.release        = single_release,
-};
-
-static __init int sync_debugfs_init(void)
-{
-	debugfs_create_file("sync", S_IRUGO, NULL, NULL, &sync_debugfs_fops);
-	return 0;
-}
-late_initcall(sync_debugfs_init);
-
-#define DUMP_CHUNK 256
-static char sync_dump_buf[64 * 1024];
-void sync_dump(void)
-{
-	struct seq_file s = {
-		.buf = sync_dump_buf,
-		.size = sizeof(sync_dump_buf) - 1,
-	};
-	int i;
-
-	sync_debugfs_show(&s, NULL);
-
-	for (i = 0; i < s.count; i += DUMP_CHUNK) {
-		if ((s.count - i) > DUMP_CHUNK) {
-			char c = s.buf[i + DUMP_CHUNK];
-
-			s.buf[i + DUMP_CHUNK] = 0;
-			pr_cont("%s", s.buf + i);
-			s.buf[i + DUMP_CHUNK] = c;
-		} else {
-			s.buf[s.count] = 0;
-			pr_cont("%s", s.buf + i);
-		}
-	}
-}
-
-#endif
diff --git a/drivers/staging/android/timed_gpio.c b/drivers/staging/android/timed_gpio.c
deleted file mode 100644
index ce11726f1a6c..000000000000
--- a/drivers/staging/android/timed_gpio.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/* drivers/misc/timed_gpio.c
- *
- * Copyright (C) 2008 Google, Inc.
- * Author: Mike Lockwood <lockwood@android.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/hrtimer.h>
-#include <linux/err.h>
-#include <linux/gpio.h>
-#include <linux/ktime.h>
-
-#include "timed_output.h"
-#include "timed_gpio.h"
-
-
-struct timed_gpio_data {
-	struct timed_output_dev dev;
-	struct hrtimer timer;
-	spinlock_t lock;
-	unsigned gpio;
-	int max_timeout;
-	u8 active_low;
-};
-
-static enum hrtimer_restart gpio_timer_func(struct hrtimer *timer)
-{
-	struct timed_gpio_data *data =
-		container_of(timer, struct timed_gpio_data, timer);
-
-	gpio_direction_output(data->gpio, data->active_low ? 1 : 0);
-	return HRTIMER_NORESTART;
-}
-
-static int gpio_get_time(struct timed_output_dev *dev)
-{
-	struct timed_gpio_data *data;
-	ktime_t t;
-
-	data = container_of(dev, struct timed_gpio_data, dev);
-
-	if (!hrtimer_active(&data->timer))
-		return 0;
-
-	t = hrtimer_get_remaining(&data->timer);
-
-	return ktime_to_ms(t);
-}
-
-static void gpio_enable(struct timed_output_dev *dev, int value)
-{
-	struct timed_gpio_data *data =
-		container_of(dev, struct timed_gpio_data, dev);
-	unsigned long flags;
-
-	spin_lock_irqsave(&data->lock, flags);
-
-	/* cancel previous timer and set GPIO according to value */
-	hrtimer_cancel(&data->timer);
-	gpio_direction_output(data->gpio, data->active_low ? !value : !!value);
-
-	if (value > 0) {
-		if (value > data->max_timeout)
-			value = data->max_timeout;
-
-		hrtimer_start(&data->timer,
-			ktime_set(value / 1000, (value % 1000) * 1000000),
-			HRTIMER_MODE_REL);
-	}
-
-	spin_unlock_irqrestore(&data->lock, flags);
-}
-
-static int timed_gpio_probe(struct platform_device *pdev)
-{
-	struct timed_gpio_platform_data *pdata = pdev->dev.platform_data;
-	struct timed_gpio *cur_gpio;
-	struct timed_gpio_data *gpio_data, *gpio_dat;
-	int i, ret;
-
-	if (!pdata)
-		return -EBUSY;
-
-	gpio_data = devm_kzalloc(&pdev->dev,
-			sizeof(struct timed_gpio_data) * pdata->num_gpios,
-			GFP_KERNEL);
-	if (!gpio_data)
-		return -ENOMEM;
-
-	for (i = 0; i < pdata->num_gpios; i++) {
-		cur_gpio = &pdata->gpios[i];
-		gpio_dat = &gpio_data[i];
-
-		hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC,
-				HRTIMER_MODE_REL);
-		gpio_dat->timer.function = gpio_timer_func;
-		spin_lock_init(&gpio_dat->lock);
-
-		gpio_dat->dev.name = cur_gpio->name;
-		gpio_dat->dev.get_time = gpio_get_time;
-		gpio_dat->dev.enable = gpio_enable;
-		ret = gpio_request(cur_gpio->gpio, cur_gpio->name);
-		if (ret < 0)
-			goto err_out;
-		ret = timed_output_dev_register(&gpio_dat->dev);
-		if (ret < 0) {
-			gpio_free(cur_gpio->gpio);
-			goto err_out;
-		}
-
-		gpio_dat->gpio = cur_gpio->gpio;
-		gpio_dat->max_timeout = cur_gpio->max_timeout;
-		gpio_dat->active_low = cur_gpio->active_low;
-		gpio_direction_output(gpio_dat->gpio, gpio_dat->active_low);
-	}
-
-	platform_set_drvdata(pdev, gpio_data);
-
-	return 0;
-
-err_out:
-	while (--i >= 0) {
-		timed_output_dev_unregister(&gpio_data[i].dev);
-		gpio_free(gpio_data[i].gpio);
-	}
-
-	return ret;
-}
-
-static int timed_gpio_remove(struct platform_device *pdev)
-{
-	struct timed_gpio_platform_data *pdata = pdev->dev.platform_data;
-	struct timed_gpio_data *gpio_data = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < pdata->num_gpios; i++) {
-		timed_output_dev_unregister(&gpio_data[i].dev);
-		gpio_free(gpio_data[i].gpio);
-	}
-
-	return 0;
-}
-
-static struct platform_driver timed_gpio_driver = {
-	.probe		= timed_gpio_probe,
-	.remove		= timed_gpio_remove,
-	.driver		= {
-		.name		= TIMED_GPIO_NAME,
-	},
-};
-
-module_platform_driver(timed_gpio_driver);
-
-MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
-MODULE_DESCRIPTION("timed gpio driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/timed_gpio.h b/drivers/staging/android/timed_gpio.h
deleted file mode 100644
index d29e169d7ebe..000000000000
--- a/drivers/staging/android/timed_gpio.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* include/linux/timed_gpio.h
- *
- * Copyright (C) 2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
-*/
-
-#ifndef _LINUX_TIMED_GPIO_H
-#define _LINUX_TIMED_GPIO_H
-
-#define TIMED_GPIO_NAME "timed-gpio"
-
-struct timed_gpio {
-	const char *name;
-	unsigned	gpio;
-	int		max_timeout;
-	u8		active_low;
-};
-
-struct timed_gpio_platform_data {
-	int		num_gpios;
-	struct timed_gpio *gpios;
-};
-
-#endif
diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
deleted file mode 100644
index b41429f379fe..000000000000
--- a/drivers/staging/android/timed_output.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/* drivers/misc/timed_output.c
- *
- * Copyright (C) 2009 Google, Inc.
- * Author: Mike Lockwood <lockwood@android.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#define pr_fmt(fmt) "timed_output: " fmt
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/device.h>
-#include <linux/fs.h>
-#include <linux/err.h>
-
-#include "timed_output.h"
-
-static struct class *timed_output_class;
-static atomic_t device_count;
-
-static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
-			   char *buf)
-{
-	struct timed_output_dev *tdev = dev_get_drvdata(dev);
-	int remaining = tdev->get_time(tdev);
-
-	return sprintf(buf, "%d\n", remaining);
-}
-
-static ssize_t enable_store(struct device *dev, struct device_attribute *attr,
-			    const char *buf, size_t size)
-{
-	struct timed_output_dev *tdev = dev_get_drvdata(dev);
-	int value;
-	int rc;
-
-	rc = kstrtoint(buf, 0, &value);
-	if (rc != 0)
-		return -EINVAL;
-
-	tdev->enable(tdev, value);
-
-	return size;
-}
-static DEVICE_ATTR_RW(enable);
-
-static struct attribute *timed_output_attrs[] = {
-	&dev_attr_enable.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(timed_output);
-
-static int create_timed_output_class(void)
-{
-	if (!timed_output_class) {
-		timed_output_class = class_create(THIS_MODULE, "timed_output");
-		if (IS_ERR(timed_output_class))
-			return PTR_ERR(timed_output_class);
-		atomic_set(&device_count, 0);
-		timed_output_class->dev_groups = timed_output_groups;
-	}
-
-	return 0;
-}
-
-int timed_output_dev_register(struct timed_output_dev *tdev)
-{
-	int ret;
-
-	if (!tdev || !tdev->name || !tdev->enable || !tdev->get_time)
-		return -EINVAL;
-
-	ret = create_timed_output_class();
-	if (ret < 0)
-		return ret;
-
-	tdev->index = atomic_inc_return(&device_count);
-	tdev->dev = device_create(timed_output_class, NULL,
-		MKDEV(0, tdev->index), NULL, "%s", tdev->name);
-	if (IS_ERR(tdev->dev))
-		return PTR_ERR(tdev->dev);
-
-	dev_set_drvdata(tdev->dev, tdev);
-	tdev->state = 0;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(timed_output_dev_register);
-
-void timed_output_dev_unregister(struct timed_output_dev *tdev)
-{
-	tdev->enable(tdev, 0);
-	device_destroy(timed_output_class, MKDEV(0, tdev->index));
-}
-EXPORT_SYMBOL_GPL(timed_output_dev_unregister);
-
-static int __init timed_output_init(void)
-{
-	return create_timed_output_class();
-}
-
-static void __exit timed_output_exit(void)
-{
-	class_destroy(timed_output_class);
-}
-
-module_init(timed_output_init);
-module_exit(timed_output_exit);
-
-MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
-MODULE_DESCRIPTION("timed output class driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/timed_output.h b/drivers/staging/android/timed_output.h
deleted file mode 100644
index 13d2ca51cbe8..000000000000
--- a/drivers/staging/android/timed_output.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* include/linux/timed_output.h
- *
- * Copyright (C) 2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
-*/
-
-#ifndef _LINUX_TIMED_OUTPUT_H
-#define _LINUX_TIMED_OUTPUT_H
-
-struct timed_output_dev {
-	const char	*name;
-
-	/* enable the output and set the timer */
-	void (*enable)(struct timed_output_dev *sdev, int timeout);
-
-	/* returns the current number of milliseconds remaining on the timer */
-	int (*get_time)(struct timed_output_dev *sdev);
-
-	/* private data */
-	struct device	*dev;
-	int		index;
-	int		state;
-};
-
-int timed_output_dev_register(struct timed_output_dev *dev);
-void timed_output_dev_unregister(struct timed_output_dev *dev);
-
-#endif
diff --git a/drivers/staging/android/trace/sync.h b/drivers/staging/android/trace/sync.h
deleted file mode 100644
index 77edb977a7bf..000000000000
--- a/drivers/staging/android/trace/sync.h
+++ /dev/null
@@ -1,82 +0,0 @@
-#undef TRACE_SYSTEM
-#define TRACE_INCLUDE_PATH ../../drivers/staging/android/trace
-#define TRACE_SYSTEM sync
-
-#if !defined(_TRACE_SYNC_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_SYNC_H
-
-#include "../sync.h"
-#include <linux/tracepoint.h>
-
-TRACE_EVENT(sync_timeline,
-	TP_PROTO(struct sync_timeline *timeline),
-
-	TP_ARGS(timeline),
-
-	TP_STRUCT__entry(
-			__string(name, timeline->name)
-			__array(char, value, 32)
-	),
-
-	TP_fast_assign(
-			__assign_str(name, timeline->name);
-			if (timeline->ops->timeline_value_str) {
-				timeline->ops->timeline_value_str(timeline,
-							__entry->value,
-							sizeof(__entry->value));
-			} else {
-				__entry->value[0] = '\0';
-			}
-	),
-
-	TP_printk("name=%s value=%s", __get_str(name), __entry->value)
-);
-
-TRACE_EVENT(sync_wait,
-	TP_PROTO(struct sync_fence *fence, int begin),
-
-	TP_ARGS(fence, begin),
-
-	TP_STRUCT__entry(
-			__string(name, fence->name)
-			__field(s32, status)
-			__field(u32, begin)
-	),
-
-	TP_fast_assign(
-			__assign_str(name, fence->name);
-			__entry->status = atomic_read(&fence->status);
-			__entry->begin = begin;
-	),
-
-	TP_printk("%s name=%s state=%d", __entry->begin ? "begin" : "end",
-			__get_str(name), __entry->status)
-);
-
-TRACE_EVENT(sync_pt,
-	TP_PROTO(struct fence *pt),
-
-	TP_ARGS(pt),
-
-	TP_STRUCT__entry(
-		__string(timeline, pt->ops->get_timeline_name(pt))
-		__array(char, value, 32)
-	),
-
-	TP_fast_assign(
-		__assign_str(timeline, pt->ops->get_timeline_name(pt));
-		if (pt->ops->fence_value_str) {
-			pt->ops->fence_value_str(pt, __entry->value,
-							sizeof(__entry->value));
-		} else {
-			__entry->value[0] = '\0';
-		}
-	),
-
-	TP_printk("name=%s value=%s", __get_str(timeline), __entry->value)
-);
-
-#endif /* if !defined(_TRACE_SYNC_H) || defined(TRACE_HEADER_MULTI_READ) */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>
diff --git a/drivers/staging/android/uapi/ashmem.h b/drivers/staging/android/uapi/ashmem.h
deleted file mode 100644
index ba4743c71d6b..000000000000
--- a/drivers/staging/android/uapi/ashmem.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * drivers/staging/android/uapi/ashmem.h
- *
- * Copyright 2008 Google Inc.
- * Author: Robert Love
- *
- * This file is dual licensed.  It may be redistributed and/or modified
- * under the terms of the Apache 2.0 License OR version 2 of the GNU
- * General Public License.
- */
-
-#ifndef _UAPI_LINUX_ASHMEM_H
-#define _UAPI_LINUX_ASHMEM_H
-
-#include <linux/ioctl.h>
-
-#define ASHMEM_NAME_LEN		256
-
-#define ASHMEM_NAME_DEF		"dev/ashmem"
-
-/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
-#define ASHMEM_NOT_PURGED	0
-#define ASHMEM_WAS_PURGED	1
-
-/* Return values from ASHMEM_GET_PIN_STATUS: Is the mapping pinned? */
-#define ASHMEM_IS_UNPINNED	0
-#define ASHMEM_IS_PINNED	1
-
-struct ashmem_pin {
-	__u32 offset;	/* offset into region, in bytes, page-aligned */
-	__u32 len;	/* length forward from offset, in bytes, page-aligned */
-};
-
-#define __ASHMEMIOC		0x77
-
-#define ASHMEM_SET_NAME		_IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
-#define ASHMEM_GET_NAME		_IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
-#define ASHMEM_SET_SIZE		_IOW(__ASHMEMIOC, 3, size_t)
-#define ASHMEM_GET_SIZE		_IO(__ASHMEMIOC, 4)
-#define ASHMEM_SET_PROT_MASK	_IOW(__ASHMEMIOC, 5, unsigned long)
-#define ASHMEM_GET_PROT_MASK	_IO(__ASHMEMIOC, 6)
-#define ASHMEM_PIN		_IOW(__ASHMEMIOC, 7, struct ashmem_pin)
-#define ASHMEM_UNPIN		_IOW(__ASHMEMIOC, 8, struct ashmem_pin)
-#define ASHMEM_GET_PIN_STATUS	_IO(__ASHMEMIOC, 9)
-#define ASHMEM_PURGE_ALL_CACHES	_IO(__ASHMEMIOC, 10)
-
-#endif	/* _UAPI_LINUX_ASHMEM_H */
diff --git a/drivers/staging/android/uapi/ion.h b/drivers/staging/android/uapi/ion.h
deleted file mode 100644
index 68a14b4e21cb..000000000000
--- a/drivers/staging/android/uapi/ion.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * drivers/staging/android/uapi/ion.h
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _UAPI_LINUX_ION_H
-#define _UAPI_LINUX_ION_H
-
-#include <linux/ioctl.h>
-#include <linux/types.h>
-
-typedef int ion_user_handle_t;
-
-/**
- * enum ion_heap_types - list of all possible types of heaps
- * @ION_HEAP_TYPE_SYSTEM:	 memory allocated via vmalloc
- * @ION_HEAP_TYPE_SYSTEM_CONTIG: memory allocated via kmalloc
- * @ION_HEAP_TYPE_CARVEOUT:	 memory allocated from a prereserved
- *				 carveout heap, allocations are physically
- *				 contiguous
- * @ION_HEAP_TYPE_DMA:		 memory allocated via DMA API
- * @ION_NUM_HEAPS:		 helper for iterating over heaps, a bit mask
- *				 is used to identify the heaps, so only 32
- *				 total heap types are supported
- */
-enum ion_heap_type {
-	ION_HEAP_TYPE_SYSTEM,
-	ION_HEAP_TYPE_SYSTEM_CONTIG,
-	ION_HEAP_TYPE_CARVEOUT,
-	ION_HEAP_TYPE_CHUNK,
-	ION_HEAP_TYPE_DMA,
-	ION_HEAP_TYPE_CUSTOM, /* must be last so device specific heaps always
-				 are at the end of this enum */
-	ION_NUM_HEAPS = 16,
-};
-
-#define ION_HEAP_SYSTEM_MASK		(1 << ION_HEAP_TYPE_SYSTEM)
-#define ION_HEAP_SYSTEM_CONTIG_MASK	(1 << ION_HEAP_TYPE_SYSTEM_CONTIG)
-#define ION_HEAP_CARVEOUT_MASK		(1 << ION_HEAP_TYPE_CARVEOUT)
-#define ION_HEAP_TYPE_DMA_MASK		(1 << ION_HEAP_TYPE_DMA)
-
-#define ION_NUM_HEAP_IDS		(sizeof(unsigned int) * 8)
-
-/**
- * allocation flags - the lower 16 bits are used by core ion, the upper 16
- * bits are reserved for use by the heaps themselves.
- */
-#define ION_FLAG_CACHED 1		/* mappings of this buffer should be
-					   cached, ion will do cache
-					   maintenance when the buffer is
-					   mapped for dma */
-#define ION_FLAG_CACHED_NEEDS_SYNC 2	/* mappings of this buffer will created
-					   at mmap time, if this is set
-					   caches must be managed manually */
-
-/**
- * DOC: Ion Userspace API
- *
- * create a client by opening /dev/ion
- * most operations handled via following ioctls
- *
- */
-
-/**
- * struct ion_allocation_data - metadata passed from userspace for allocations
- * @len:		size of the allocation
- * @align:		required alignment of the allocation
- * @heap_id_mask:	mask of heap ids to allocate from
- * @flags:		flags passed to heap
- * @handle:		pointer that will be populated with a cookie to use to
- *			refer to this allocation
- *
- * Provided by userspace as an argument to the ioctl
- */
-struct ion_allocation_data {
-	size_t len;
-	size_t align;
-	unsigned int heap_id_mask;
-	unsigned int flags;
-	ion_user_handle_t handle;
-};
-
-/**
- * struct ion_fd_data - metadata passed to/from userspace for a handle/fd pair
- * @handle:	a handle
- * @fd:		a file descriptor representing that handle
- *
- * For ION_IOC_SHARE or ION_IOC_MAP userspace populates the handle field with
- * the handle returned from ion alloc, and the kernel returns the file
- * descriptor to share or map in the fd field.  For ION_IOC_IMPORT, userspace
- * provides the file descriptor and the kernel returns the handle.
- */
-struct ion_fd_data {
-	ion_user_handle_t handle;
-	int fd;
-};
-
-/**
- * struct ion_handle_data - a handle passed to/from the kernel
- * @handle:	a handle
- */
-struct ion_handle_data {
-	ion_user_handle_t handle;
-};
-
-/**
- * struct ion_custom_data - metadata passed to/from userspace for a custom ioctl
- * @cmd:	the custom ioctl function to call
- * @arg:	additional data to pass to the custom ioctl, typically a user
- *		pointer to a predefined structure
- *
- * This works just like the regular cmd and arg fields of an ioctl.
- */
-struct ion_custom_data {
-	unsigned int cmd;
-	unsigned long arg;
-};
-
-#define ION_IOC_MAGIC		'I'
-
-/**
- * DOC: ION_IOC_ALLOC - allocate memory
- *
- * Takes an ion_allocation_data struct and returns it with the handle field
- * populated with the opaque handle for the allocation.
- */
-#define ION_IOC_ALLOC		_IOWR(ION_IOC_MAGIC, 0, \
-				      struct ion_allocation_data)
-
-/**
- * DOC: ION_IOC_FREE - free memory
- *
- * Takes an ion_handle_data struct and frees the handle.
- */
-#define ION_IOC_FREE		_IOWR(ION_IOC_MAGIC, 1, struct ion_handle_data)
-
-/**
- * DOC: ION_IOC_MAP - get a file descriptor to mmap
- *
- * Takes an ion_fd_data struct with the handle field populated with a valid
- * opaque handle.  Returns the struct with the fd field set to a file
- * descriptor open in the current address space.  This file descriptor
- * can then be used as an argument to mmap.
- */
-#define ION_IOC_MAP		_IOWR(ION_IOC_MAGIC, 2, struct ion_fd_data)
-
-/**
- * DOC: ION_IOC_SHARE - creates a file descriptor to use to share an allocation
- *
- * Takes an ion_fd_data struct with the handle field populated with a valid
- * opaque handle.  Returns the struct with the fd field set to a file
- * descriptor open in the current address space.  This file descriptor
- * can then be passed to another process.  The corresponding opaque handle can
- * be retrieved via ION_IOC_IMPORT.
- */
-#define ION_IOC_SHARE		_IOWR(ION_IOC_MAGIC, 4, struct ion_fd_data)
-
-/**
- * DOC: ION_IOC_IMPORT - imports a shared file descriptor
- *
- * Takes an ion_fd_data struct with the fd field populated with a valid file
- * descriptor obtained from ION_IOC_SHARE and returns the struct with the handle
- * filed set to the corresponding opaque handle.
- */
-#define ION_IOC_IMPORT		_IOWR(ION_IOC_MAGIC, 5, struct ion_fd_data)
-
-/**
- * DOC: ION_IOC_SYNC - syncs a shared file descriptors to memory
- *
- * Deprecated in favor of using the dma_buf api's correctly (syncing
- * will happen automatically when the buffer is mapped to a device).
- * If necessary should be used after touching a cached buffer from the cpu,
- * this will make the buffer in memory coherent.
- */
-#define ION_IOC_SYNC		_IOWR(ION_IOC_MAGIC, 7, struct ion_fd_data)
-
-/**
- * DOC: ION_IOC_CUSTOM - call architecture specific ion ioctl
- *
- * Takes the argument of the architecture specific ioctl to call and
- * passes appropriate userdata for that ioctl
- */
-#define ION_IOC_CUSTOM		_IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data)
-
-#endif /* _UAPI_LINUX_ION_H */
diff --git a/drivers/staging/android/uapi/ion_test.h b/drivers/staging/android/uapi/ion_test.h
deleted file mode 100644
index ffef06f63133..000000000000
--- a/drivers/staging/android/uapi/ion_test.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * drivers/staging/android/uapi/ion.h
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _UAPI_LINUX_ION_TEST_H
-#define _UAPI_LINUX_ION_TEST_H
-
-#include <linux/ioctl.h>
-#include <linux/types.h>
-
-/**
- * struct ion_test_rw_data - metadata passed to the kernel to read handle
- * @ptr:	a pointer to an area at least as large as size
- * @offset:	offset into the ion buffer to start reading
- * @size:	size to read or write
- * @write:	1 to write, 0 to read
- */
-struct ion_test_rw_data {
-	__u64 ptr;
-	__u64 offset;
-	__u64 size;
-	int write;
-	int __padding;
-};
-
-#define ION_IOC_MAGIC		'I'
-
-/**
- * DOC: ION_IOC_TEST_SET_DMA_BUF - attach a dma buf to the test driver
- *
- * Attaches a dma buf fd to the test driver.  Passing a second fd or -1 will
- * release the first fd.
- */
-#define ION_IOC_TEST_SET_FD \
-			_IO(ION_IOC_MAGIC, 0xf0)
-
-/**
- * DOC: ION_IOC_TEST_DMA_MAPPING - read or write memory from a handle as DMA
- *
- * Reads or writes the memory from a handle using an uncached mapping.  Can be
- * used by unit tests to emulate a DMA engine as close as possible.  Only
- * expected to be used for debugging and testing, may not always be available.
- */
-#define ION_IOC_TEST_DMA_MAPPING \
-			_IOW(ION_IOC_MAGIC, 0xf1, struct ion_test_rw_data)
-
-/**
- * DOC: ION_IOC_TEST_KERNEL_MAPPING - read or write memory from a handle
- *
- * Reads or writes the memory from a handle using a kernel mapping.  Can be
- * used by unit tests to test heap map_kernel functions.  Only expected to be
- * used for debugging and testing, may not always be available.
- */
-#define ION_IOC_TEST_KERNEL_MAPPING \
-			_IOW(ION_IOC_MAGIC, 0xf2, struct ion_test_rw_data)
-
-
-#endif /* _UAPI_LINUX_ION_H */
diff --git a/drivers/staging/android/uapi/sw_sync.h b/drivers/staging/android/uapi/sw_sync.h
deleted file mode 100644
index 9b5d4869505c..000000000000
--- a/drivers/staging/android/uapi/sw_sync.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (C) 2012 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _UAPI_LINUX_SW_SYNC_H
-#define _UAPI_LINUX_SW_SYNC_H
-
-#include <linux/types.h>
-
-struct sw_sync_create_fence_data {
-	__u32	value;
-	char	name[32];
-	__s32	fence; /* fd of new fence */
-};
-
-#define SW_SYNC_IOC_MAGIC	'W'
-
-#define SW_SYNC_IOC_CREATE_FENCE	_IOWR(SW_SYNC_IOC_MAGIC, 0,\
-		struct sw_sync_create_fence_data)
-#define SW_SYNC_IOC_INC			_IOW(SW_SYNC_IOC_MAGIC, 1, __u32)
-
-#endif /* _UAPI_LINUX_SW_SYNC_H */
diff --git a/drivers/staging/android/uapi/sync.h b/drivers/staging/android/uapi/sync.h
deleted file mode 100644
index e964c751f6b8..000000000000
--- a/drivers/staging/android/uapi/sync.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2012 Google, Inc.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _UAPI_LINUX_SYNC_H
-#define _UAPI_LINUX_SYNC_H
-
-#include <linux/ioctl.h>
-#include <linux/types.h>
-
-/**
- * struct sync_merge_data - data passed to merge ioctl
- * @fd2:	file descriptor of second fence
- * @name:	name of new fence
- * @fence:	returns the fd of the new fence to userspace
- */
-struct sync_merge_data {
-	__s32	fd2; /* fd of second fence */
-	char	name[32]; /* name of new fence */
-	__s32	fence; /* fd on newly created fence */
-};
-
-/**
- * struct sync_pt_info - detailed sync_pt information
- * @len:		length of sync_pt_info including any driver_data
- * @obj_name:		name of parent sync_timeline
- * @driver_name:	name of driver implementing the parent
- * @status:		status of the sync_pt 0:active 1:signaled <0:error
- * @timestamp_ns:	timestamp of status change in nanoseconds
- * @driver_data:	any driver dependent data
- */
-struct sync_pt_info {
-	__u32	len;
-	char	obj_name[32];
-	char	driver_name[32];
-	__s32	status;
-	__u64	timestamp_ns;
-
-	__u8	driver_data[0];
-};
-
-/**
- * struct sync_fence_info_data - data returned from fence info ioctl
- * @len:	ioctl caller writes the size of the buffer its passing in.
- *		ioctl returns length of sync_fence_data returned to userspace
- *		including pt_info.
- * @name:	name of fence
- * @status:	status of fence. 1: signaled 0:active <0:error
- * @pt_info:	a sync_pt_info struct for every sync_pt in the fence
- */
-struct sync_fence_info_data {
-	__u32	len;
-	char	name[32];
-	__s32	status;
-
-	__u8	pt_info[0];
-};
-
-#define SYNC_IOC_MAGIC		'>'
-
-/**
- * DOC: SYNC_IOC_WAIT - wait for a fence to signal
- *
- * pass timeout in milliseconds.  Waits indefinitely timeout < 0.
- */
-#define SYNC_IOC_WAIT		_IOW(SYNC_IOC_MAGIC, 0, __s32)
-
-/**
- * DOC: SYNC_IOC_MERGE - merge two fences
- *
- * Takes a struct sync_merge_data.  Creates a new fence containing copies of
- * the sync_pts in both the calling fd and sync_merge_data.fd2.  Returns the
- * new fence's fd in sync_merge_data.fence
- */
-#define SYNC_IOC_MERGE		_IOWR(SYNC_IOC_MAGIC, 1, struct sync_merge_data)
-
-/**
- * DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence
- *
- * Takes a struct sync_fence_info_data with extra space allocated for pt_info.
- * Caller should write the size of the buffer into len.  On return, len is
- * updated to reflect the total size of the sync_fence_info_data including
- * pt_info.
- *
- * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence.
- * To iterate over the sync_pt_infos, use the sync_pt_info.len field.
- */
-#define SYNC_IOC_FENCE_INFO	_IOWR(SYNC_IOC_MAGIC, 2,\
-	struct sync_fence_info_data)
-
-#endif /* _UAPI_LINUX_SYNC_H */
diff --git a/drivers/staging/axis-fifo/Kconfig b/drivers/staging/axis-fifo/Kconfig
new file mode 100644
index 000000000000..f180a8e9f58a
--- /dev/null
+++ b/drivers/staging/axis-fifo/Kconfig
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# "Xilinx AXI-Stream FIFO IP core driver"
+#
+config XIL_AXIS_FIFO
+	tristate "Xilinx AXI-Stream FIFO IP core driver"
+	depends on OF && HAS_IOMEM
+	help
+	  This adds support for the Xilinx AXI-Stream FIFO IP core driver.
+	  The AXI Streaming FIFO allows memory mapped access to a AXI Streaming
+	  interface. The Xilinx AXI-Stream FIFO IP core can be used to interface
+	  to the AXI Ethernet without the need to use DMA.
diff --git a/drivers/staging/axis-fifo/Makefile b/drivers/staging/axis-fifo/Makefile
new file mode 100644
index 000000000000..c626005c99db
--- /dev/null
+++ b/drivers/staging/axis-fifo/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_XIL_AXIS_FIFO) += axis-fifo.o
diff --git a/drivers/staging/axis-fifo/README b/drivers/staging/axis-fifo/README
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/drivers/staging/axis-fifo/README
diff --git a/drivers/staging/axis-fifo/axis-fifo.c b/drivers/staging/axis-fifo/axis-fifo.c
new file mode 100644
index 000000000000..509d620d6ce7
--- /dev/null
+++ b/drivers/staging/axis-fifo/axis-fifo.c
@@ -0,0 +1,703 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Xilinx AXIS FIFO: interface to the Xilinx AXI-Stream FIFO IP core
+ *
+ * Copyright (C) 2018 Jacob Feder
+ *
+ * Authors:  Jacob Feder <jacobsfeder@gmail.com>
+ *
+ * See Xilinx PG080 document for IP details
+ */
+
+/* ----------------------------
+ *           includes
+ * ----------------------------
+ */
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/wait.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
+#include <linux/cdev.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/moduleparam.h>
+#include <linux/interrupt.h>
+#include <linux/param.h>
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+#include <linux/jiffies.h>
+#include <linux/miscdevice.h>
+#include <linux/debugfs.h>
+
+/* ----------------------------
+ *       driver parameters
+ * ----------------------------
+ */
+
+#define DRIVER_NAME "axis_fifo"
+
+#define READ_BUF_SIZE 128U /* read buffer length in words */
+
+#define AXIS_FIFO_DEBUG_REG_NAME_MAX_LEN	4
+
+/* ----------------------------
+ *     IP register offsets
+ * ----------------------------
+ */
+
+#define XLLF_ISR_OFFSET  0x00000000  /* Interrupt Status */
+#define XLLF_IER_OFFSET  0x00000004  /* Interrupt Enable */
+
+#define XLLF_TDFR_OFFSET 0x00000008  /* Transmit Reset */
+#define XLLF_TDFV_OFFSET 0x0000000c  /* Transmit Vacancy */
+#define XLLF_TDFD_OFFSET 0x00000010  /* Transmit Data */
+#define XLLF_TLR_OFFSET  0x00000014  /* Transmit Length */
+
+#define XLLF_RDFR_OFFSET 0x00000018  /* Receive Reset */
+#define XLLF_RDFO_OFFSET 0x0000001c  /* Receive Occupancy */
+#define XLLF_RDFD_OFFSET 0x00000020  /* Receive Data */
+#define XLLF_RLR_OFFSET  0x00000024  /* Receive Length */
+#define XLLF_SRR_OFFSET  0x00000028  /* Local Link Reset */
+#define XLLF_TDR_OFFSET  0x0000002C  /* Transmit Destination */
+#define XLLF_RDR_OFFSET  0x00000030  /* Receive Destination */
+
+/* ----------------------------
+ *     reset register masks
+ * ----------------------------
+ */
+
+#define XLLF_RDFR_RESET_MASK        0x000000a5 /* receive reset value */
+#define XLLF_TDFR_RESET_MASK        0x000000a5 /* Transmit reset value */
+#define XLLF_SRR_RESET_MASK         0x000000a5 /* Local Link reset value */
+
+/* ----------------------------
+ *       interrupt masks
+ * ----------------------------
+ */
+
+#define XLLF_INT_RPURE_MASK       0x80000000 /* Receive under-read */
+#define XLLF_INT_RPORE_MASK       0x40000000 /* Receive over-read */
+#define XLLF_INT_RPUE_MASK        0x20000000 /* Receive underrun (empty) */
+#define XLLF_INT_TPOE_MASK        0x10000000 /* Transmit overrun */
+#define XLLF_INT_TC_MASK          0x08000000 /* Transmit complete */
+#define XLLF_INT_RC_MASK          0x04000000 /* Receive complete */
+#define XLLF_INT_TSE_MASK         0x02000000 /* Transmit length mismatch */
+
+#define XLLF_INT_CLEAR_ALL	GENMASK(31, 0)
+
+/* ----------------------------
+ *           globals
+ * ----------------------------
+ */
+static long read_timeout = 1000; /* ms to wait before read() times out */
+static long write_timeout = 1000; /* ms to wait before write() times out */
+
+static DEFINE_IDA(axis_fifo_ida);
+
+/* ----------------------------
+ * module command-line arguments
+ * ----------------------------
+ */
+
+module_param(read_timeout, long, 0444);
+MODULE_PARM_DESC(read_timeout, "ms to wait before blocking read() timing out; set to -1 for no timeout");
+module_param(write_timeout, long, 0444);
+MODULE_PARM_DESC(write_timeout, "ms to wait before blocking write() timing out; set to -1 for no timeout");
+
+/* ----------------------------
+ *            types
+ * ----------------------------
+ */
+
+struct axis_fifo {
+	int id;
+	void __iomem *base_addr; /* kernel space memory */
+
+	unsigned int rx_fifo_depth; /* max words in the receive fifo */
+	unsigned int tx_fifo_depth; /* max words in the transmit fifo */
+	int has_rx_fifo; /* whether the IP has the rx fifo enabled */
+	int has_tx_fifo; /* whether the IP has the tx fifo enabled */
+
+	wait_queue_head_t read_queue; /* wait queue for asynchronos read */
+	struct mutex read_lock; /* lock for reading */
+	wait_queue_head_t write_queue; /* wait queue for asynchronos write */
+	struct mutex write_lock; /* lock for writing */
+
+	struct device *dt_device; /* device created from the device tree */
+	struct miscdevice miscdev;
+
+	struct dentry *debugfs_dir;
+};
+
+struct axis_fifo_debug_reg {
+	const char * const name;
+	unsigned int offset;
+};
+
+/* ----------------------------
+ *        implementation
+ * ----------------------------
+ */
+
+static void reset_ip_core(struct axis_fifo *fifo)
+{
+	iowrite32(XLLF_SRR_RESET_MASK, fifo->base_addr + XLLF_SRR_OFFSET);
+	iowrite32(XLLF_TDFR_RESET_MASK, fifo->base_addr + XLLF_TDFR_OFFSET);
+	iowrite32(XLLF_RDFR_RESET_MASK, fifo->base_addr + XLLF_RDFR_OFFSET);
+	iowrite32(XLLF_INT_TC_MASK | XLLF_INT_RC_MASK | XLLF_INT_RPURE_MASK |
+		  XLLF_INT_RPORE_MASK | XLLF_INT_RPUE_MASK |
+		  XLLF_INT_TPOE_MASK | XLLF_INT_TSE_MASK,
+		  fifo->base_addr + XLLF_IER_OFFSET);
+	iowrite32(XLLF_INT_CLEAR_ALL, fifo->base_addr + XLLF_ISR_OFFSET);
+}
+
+/**
+ * axis_fifo_read() - Read a packet from AXIS-FIFO character device.
+ * @f: Open file.
+ * @buf: User space buffer to read to.
+ * @len: User space buffer length.
+ * @off: Buffer offset.
+ *
+ * As defined by the device's documentation, we need to check the device's
+ * occupancy before reading the length register and then the data. All these
+ * operations must be executed atomically, in order and one after the other
+ * without missing any.
+ *
+ * Returns the number of bytes read from the device or negative error code
+ *	on failure.
+ */
+static ssize_t axis_fifo_read(struct file *f, char __user *buf,
+			      size_t len, loff_t *off)
+{
+	struct axis_fifo *fifo = (struct axis_fifo *)f->private_data;
+	size_t bytes_available;
+	unsigned int words_available;
+	unsigned int copied;
+	unsigned int copy;
+	unsigned int i;
+	int ret;
+	u32 tmp_buf[READ_BUF_SIZE];
+
+	if (f->f_flags & O_NONBLOCK) {
+		/*
+		 * Device opened in non-blocking mode. Try to lock it and then
+		 * check if any packet is available.
+		 */
+		if (!mutex_trylock(&fifo->read_lock))
+			return -EAGAIN;
+
+		if (!ioread32(fifo->base_addr + XLLF_RDFO_OFFSET)) {
+			ret = -EAGAIN;
+			goto end_unlock;
+		}
+	} else {
+		/* opened in blocking mode
+		 * wait for a packet available interrupt (or timeout)
+		 * if nothing is currently available
+		 */
+		mutex_lock(&fifo->read_lock);
+		ret = wait_event_interruptible_timeout(fifo->read_queue,
+						       ioread32(fifo->base_addr + XLLF_RDFO_OFFSET),
+						       read_timeout);
+
+		if (ret <= 0) {
+			if (ret == 0) {
+				ret = -EAGAIN;
+			} else if (ret != -ERESTARTSYS) {
+				dev_err(fifo->dt_device, "wait_event_interruptible_timeout() error in read (ret=%i)\n",
+					ret);
+			}
+
+			goto end_unlock;
+		}
+	}
+
+	bytes_available = ioread32(fifo->base_addr + XLLF_RLR_OFFSET);
+	words_available = bytes_available / sizeof(u32);
+	if (!bytes_available) {
+		dev_err(fifo->dt_device, "received a packet of length 0\n");
+		ret = -EIO;
+		goto end_unlock;
+	}
+
+	if (bytes_available > len) {
+		dev_err(fifo->dt_device, "user read buffer too small (available bytes=%zu user buffer bytes=%zu)\n",
+			bytes_available, len);
+		ret = -EINVAL;
+		goto err_flush_rx;
+	}
+
+	if (bytes_available % sizeof(u32)) {
+		/* this probably can't happen unless IP
+		 * registers were previously mishandled
+		 */
+		dev_err(fifo->dt_device, "received a packet that isn't word-aligned\n");
+		ret = -EIO;
+		goto err_flush_rx;
+	}
+
+	/* read data into an intermediate buffer, copying the contents
+	 * to userspace when the buffer is full
+	 */
+	copied = 0;
+	while (words_available > 0) {
+		copy = min(words_available, READ_BUF_SIZE);
+
+		for (i = 0; i < copy; i++) {
+			tmp_buf[i] = ioread32(fifo->base_addr +
+					      XLLF_RDFD_OFFSET);
+		}
+		words_available -= copy;
+
+		if (copy_to_user(buf + copied * sizeof(u32), tmp_buf,
+				 copy * sizeof(u32))) {
+			ret = -EFAULT;
+			goto err_flush_rx;
+		}
+
+		copied += copy;
+	}
+	mutex_unlock(&fifo->read_lock);
+
+	return bytes_available;
+
+err_flush_rx:
+	while (words_available--)
+		ioread32(fifo->base_addr + XLLF_RDFD_OFFSET);
+
+end_unlock:
+	mutex_unlock(&fifo->read_lock);
+
+	return ret;
+}
+
+/**
+ * axis_fifo_write() - Write buffer to AXIS-FIFO character device.
+ * @f: Open file.
+ * @buf: User space buffer to write to the device.
+ * @len: User space buffer length.
+ * @off: Buffer offset.
+ *
+ * As defined by the device's documentation, we need to write to the device's
+ * data buffer then to the device's packet length register atomically. Also,
+ * we need to lock before checking if the device has available space to avoid
+ * any concurrency issue.
+ *
+ * Returns the number of bytes written to the device or negative error code
+ *	on failure.
+ */
+static ssize_t axis_fifo_write(struct file *f, const char __user *buf,
+			       size_t len, loff_t *off)
+{
+	struct axis_fifo *fifo = (struct axis_fifo *)f->private_data;
+	unsigned int words_to_write;
+	u32 *txbuf;
+	int ret;
+
+	if (len % sizeof(u32)) {
+		dev_err(fifo->dt_device,
+			"tried to send a packet that isn't word-aligned\n");
+		return -EINVAL;
+	}
+
+	words_to_write = len / sizeof(u32);
+
+	if (!words_to_write) {
+		dev_err(fifo->dt_device,
+			"tried to send a packet of length 0\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * In 'Store-and-Forward' mode, the maximum packet that can be
+	 * transmitted is limited by the size of the FIFO, which is
+	 * (C_TX_FIFO_DEPTH–4)*(data interface width/8) bytes.
+	 *
+	 * Do not attempt to send a packet larger than 'tx_fifo_depth - 4',
+	 * otherwise a 'Transmit Packet Overrun Error' interrupt will be
+	 * raised, which requires a reset of the TX circuit to recover.
+	 */
+	if (words_to_write > (fifo->tx_fifo_depth - 4))
+		return -EINVAL;
+
+	if (f->f_flags & O_NONBLOCK) {
+		/*
+		 * Device opened in non-blocking mode. Try to lock it and then
+		 * check if there is any room to write the given buffer.
+		 */
+		if (!mutex_trylock(&fifo->write_lock))
+			return -EAGAIN;
+
+		if (words_to_write > ioread32(fifo->base_addr +
+					      XLLF_TDFV_OFFSET)) {
+			ret = -EAGAIN;
+			goto end_unlock;
+		}
+	} else {
+		/* opened in blocking mode */
+
+		/* wait for an interrupt (or timeout) if there isn't
+		 * currently enough room in the fifo
+		 */
+		mutex_lock(&fifo->write_lock);
+		ret = wait_event_interruptible_timeout(fifo->write_queue,
+						       ioread32(fifo->base_addr + XLLF_TDFV_OFFSET)
+								>= words_to_write,
+						       write_timeout);
+
+		if (ret <= 0) {
+			if (ret == 0) {
+				ret = -EAGAIN;
+			} else if (ret != -ERESTARTSYS) {
+				dev_err(fifo->dt_device, "wait_event_interruptible_timeout() error in write (ret=%i)\n",
+					ret);
+			}
+
+			goto end_unlock;
+		}
+	}
+
+	txbuf = vmemdup_user(buf, len);
+	if (IS_ERR(txbuf)) {
+		ret = PTR_ERR(txbuf);
+		goto end_unlock;
+	}
+
+	for (int i = 0; i < words_to_write; ++i)
+		iowrite32(txbuf[i], fifo->base_addr + XLLF_TDFD_OFFSET);
+
+	/* write packet size to fifo */
+	iowrite32(len, fifo->base_addr + XLLF_TLR_OFFSET);
+
+	ret = len;
+	kvfree(txbuf);
+end_unlock:
+	mutex_unlock(&fifo->write_lock);
+
+	return ret;
+}
+
+static irqreturn_t axis_fifo_irq(int irq, void *dw)
+{
+	struct axis_fifo *fifo = dw;
+	u32 isr, ier, intr;
+
+	ier = ioread32(fifo->base_addr + XLLF_IER_OFFSET);
+	isr = ioread32(fifo->base_addr + XLLF_ISR_OFFSET);
+	intr = ier & isr;
+
+	if (intr & XLLF_INT_RC_MASK)
+		wake_up(&fifo->read_queue);
+
+	if (intr & XLLF_INT_TC_MASK)
+		wake_up(&fifo->write_queue);
+
+	if (intr & XLLF_INT_RPURE_MASK)
+		dev_err(fifo->dt_device, "receive under-read interrupt\n");
+
+	if (intr & XLLF_INT_RPORE_MASK)
+		dev_err(fifo->dt_device, "receive over-read interrupt\n");
+
+	if (intr & XLLF_INT_RPUE_MASK)
+		dev_err(fifo->dt_device, "receive underrun error interrupt\n");
+
+	if (intr & XLLF_INT_TPOE_MASK)
+		dev_err(fifo->dt_device, "transmit overrun error interrupt\n");
+
+	if (intr & XLLF_INT_TSE_MASK)
+		dev_err(fifo->dt_device,
+			"transmit length mismatch error interrupt\n");
+
+	iowrite32(XLLF_INT_CLEAR_ALL, fifo->base_addr + XLLF_ISR_OFFSET);
+
+	return IRQ_HANDLED;
+}
+
+static int axis_fifo_open(struct inode *inod, struct file *f)
+{
+	struct axis_fifo *fifo = container_of(f->private_data,
+					      struct axis_fifo, miscdev);
+	unsigned int flags = f->f_flags & O_ACCMODE;
+
+	f->private_data = fifo;
+
+	if ((flags == O_WRONLY || flags == O_RDWR) && !fifo->has_tx_fifo)
+		return -EPERM;
+
+	if ((flags == O_RDONLY || flags == O_RDWR) && !fifo->has_rx_fifo)
+		return -EPERM;
+
+	return 0;
+}
+
+static int axis_fifo_close(struct inode *inod, struct file *f)
+{
+	f->private_data = NULL;
+
+	return 0;
+}
+
+static const struct file_operations fops = {
+	.owner = THIS_MODULE,
+	.open = axis_fifo_open,
+	.release = axis_fifo_close,
+	.read = axis_fifo_read,
+	.write = axis_fifo_write
+};
+
+static int axis_fifo_debugfs_regs_show(struct seq_file *m, void *p)
+{
+	static const struct axis_fifo_debug_reg regs[] = {
+		{"isr", XLLF_ISR_OFFSET},
+		{"ier", XLLF_IER_OFFSET},
+		{"tdfv", XLLF_TDFV_OFFSET},
+		{"rdfo", XLLF_RDFO_OFFSET},
+		{ /* Sentinel */ },
+	};
+	const struct axis_fifo_debug_reg *reg;
+	struct axis_fifo *fifo = m->private;
+
+	for (reg = regs; reg->name; ++reg) {
+		u32 val = ioread32(fifo->base_addr + reg->offset);
+
+		seq_printf(m, "%*s: 0x%08x\n", AXIS_FIFO_DEBUG_REG_NAME_MAX_LEN,
+			   reg->name, val);
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(axis_fifo_debugfs_regs);
+
+static void axis_fifo_debugfs_init(struct axis_fifo *fifo)
+{
+	fifo->debugfs_dir = debugfs_create_dir(dev_name(fifo->dt_device), NULL);
+
+	debugfs_create_file("regs", 0444, fifo->debugfs_dir, fifo,
+			    &axis_fifo_debugfs_regs_fops);
+}
+
+static int axis_fifo_parse_dt(struct axis_fifo *fifo)
+{
+	int ret;
+	unsigned int value;
+	struct device_node *node = fifo->dt_device->of_node;
+
+	ret = of_property_read_u32(node, "xlnx,axi-str-rxd-tdata-width",
+				   &value);
+	if (ret) {
+		dev_err(fifo->dt_device, "missing xlnx,axi-str-rxd-tdata-width property\n");
+		goto end;
+	} else if (value != 32) {
+		dev_err(fifo->dt_device, "xlnx,axi-str-rxd-tdata-width only supports 32 bits\n");
+		ret = -EIO;
+		goto end;
+	}
+
+	ret = of_property_read_u32(node, "xlnx,axi-str-txd-tdata-width",
+				   &value);
+	if (ret) {
+		dev_err(fifo->dt_device, "missing xlnx,axi-str-txd-tdata-width property\n");
+		goto end;
+	} else if (value != 32) {
+		dev_err(fifo->dt_device, "xlnx,axi-str-txd-tdata-width only supports 32 bits\n");
+		ret = -EIO;
+		goto end;
+	}
+
+	ret = of_property_read_u32(node, "xlnx,rx-fifo-depth",
+				   &fifo->rx_fifo_depth);
+	if (ret) {
+		dev_err(fifo->dt_device, "missing xlnx,rx-fifo-depth property\n");
+		ret = -EIO;
+		goto end;
+	}
+
+	ret = of_property_read_u32(node, "xlnx,tx-fifo-depth",
+				   &fifo->tx_fifo_depth);
+	if (ret) {
+		dev_err(fifo->dt_device, "missing xlnx,tx-fifo-depth property\n");
+		ret = -EIO;
+		goto end;
+	}
+
+	ret = of_property_read_u32(node, "xlnx,use-rx-data",
+				   &fifo->has_rx_fifo);
+	if (ret) {
+		dev_err(fifo->dt_device, "missing xlnx,use-rx-data property\n");
+		ret = -EIO;
+		goto end;
+	}
+
+	ret = of_property_read_u32(node, "xlnx,use-tx-data",
+				   &fifo->has_tx_fifo);
+	if (ret) {
+		dev_err(fifo->dt_device, "missing xlnx,use-tx-data property\n");
+		ret = -EIO;
+		goto end;
+	}
+
+end:
+	return ret;
+}
+
+static int axis_fifo_probe(struct platform_device *pdev)
+{
+	struct resource *r_mem; /* IO mem resources */
+	struct device *dev = &pdev->dev; /* OS device (from device tree) */
+	struct axis_fifo *fifo = NULL;
+	char *device_name;
+	int rc = 0; /* error return value */
+	int irq;
+
+	/* ----------------------------
+	 *     init wrapper device
+	 * ----------------------------
+	 */
+
+	device_name = devm_kzalloc(dev, 32, GFP_KERNEL);
+	if (!device_name)
+		return -ENOMEM;
+
+	/* allocate device wrapper memory */
+	fifo = devm_kzalloc(dev, sizeof(*fifo), GFP_KERNEL);
+	if (!fifo)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, fifo);
+	fifo->dt_device = dev;
+
+	init_waitqueue_head(&fifo->read_queue);
+	init_waitqueue_head(&fifo->write_queue);
+
+	mutex_init(&fifo->read_lock);
+	mutex_init(&fifo->write_lock);
+
+	/* ----------------------------
+	 *   init device memory space
+	 * ----------------------------
+	 */
+
+	/* get iospace for the device and request physical memory */
+	fifo->base_addr = devm_platform_get_and_ioremap_resource(pdev, 0, &r_mem);
+	if (IS_ERR(fifo->base_addr))
+		return PTR_ERR(fifo->base_addr);
+
+	/* ----------------------------
+	 *          init IP
+	 * ----------------------------
+	 */
+
+	rc = axis_fifo_parse_dt(fifo);
+	if (rc)
+		return rc;
+
+	reset_ip_core(fifo);
+
+	/* ----------------------------
+	 *    init device interrupts
+	 * ----------------------------
+	 */
+
+	/* get IRQ resource */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	/* request IRQ */
+	rc = devm_request_irq(fifo->dt_device, irq, &axis_fifo_irq, 0,
+			      DRIVER_NAME, fifo);
+	if (rc) {
+		dev_err(fifo->dt_device, "couldn't allocate interrupt %i\n",
+			irq);
+		return rc;
+	}
+
+	/* ----------------------------
+	 *      init char device
+	 * ----------------------------
+	 */
+	fifo->id = ida_alloc(&axis_fifo_ida, GFP_KERNEL);
+	if (fifo->id < 0)
+		return fifo->id;
+
+	snprintf(device_name, 32, "%s%d", DRIVER_NAME, fifo->id);
+
+	/* create character device */
+	fifo->miscdev.fops = &fops;
+	fifo->miscdev.minor = MISC_DYNAMIC_MINOR;
+	fifo->miscdev.name = device_name;
+	fifo->miscdev.parent = dev;
+	rc = misc_register(&fifo->miscdev);
+	if (rc < 0) {
+		ida_free(&axis_fifo_ida, fifo->id);
+		return rc;
+	}
+
+	axis_fifo_debugfs_init(fifo);
+
+	return 0;
+}
+
+static void axis_fifo_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct axis_fifo *fifo = dev_get_drvdata(dev);
+
+	debugfs_remove(fifo->debugfs_dir);
+	misc_deregister(&fifo->miscdev);
+	ida_free(&axis_fifo_ida, fifo->id);
+}
+
+static const struct of_device_id axis_fifo_of_match[] = {
+	{ .compatible = "xlnx,axi-fifo-mm-s-4.1", },
+	{ .compatible = "xlnx,axi-fifo-mm-s-4.2", },
+	{ .compatible = "xlnx,axi-fifo-mm-s-4.3", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, axis_fifo_of_match);
+
+static struct platform_driver axis_fifo_driver = {
+	.driver = {
+		.name = DRIVER_NAME,
+		.of_match_table	= axis_fifo_of_match,
+	},
+	.probe		= axis_fifo_probe,
+	.remove		= axis_fifo_remove,
+};
+
+static int __init axis_fifo_init(void)
+{
+	if (read_timeout >= 0)
+		read_timeout = msecs_to_jiffies(read_timeout);
+	else
+		read_timeout = MAX_SCHEDULE_TIMEOUT;
+
+	if (write_timeout >= 0)
+		write_timeout = msecs_to_jiffies(write_timeout);
+	else
+		write_timeout = MAX_SCHEDULE_TIMEOUT;
+
+	pr_info("axis-fifo driver loaded with parameters read_timeout = %li, write_timeout = %li\n",
+		read_timeout, write_timeout);
+	return platform_driver_register(&axis_fifo_driver);
+}
+
+module_init(axis_fifo_init);
+
+static void __exit axis_fifo_exit(void)
+{
+	platform_driver_unregister(&axis_fifo_driver);
+	ida_destroy(&axis_fifo_ida);
+}
+
+module_exit(axis_fifo_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jacob Feder <jacobsfeder@gmail.com>");
+MODULE_DESCRIPTION("Xilinx AXI-Stream FIFO IP core driver");
diff --git a/drivers/staging/axis-fifo/axis-fifo.txt b/drivers/staging/axis-fifo/axis-fifo.txt
new file mode 100644
index 000000000000..413b81a53202
--- /dev/null
+++ b/drivers/staging/axis-fifo/axis-fifo.txt
@@ -0,0 +1,96 @@
+Xilinx AXI-Stream FIFO v4.1 IP core
+
+This IP core has read and write AXI-Stream FIFOs, the contents of which can
+be accessed from the AXI4 memory-mapped interface. This is useful for
+transferring data from a processor into the FPGA fabric. The driver creates
+a character device that can be read/written to with standard
+open/read/write/close.
+
+See Xilinx PG080 document for IP details.
+
+Currently supports only store-forward mode with a 32-bit
+AXI4-Lite interface. DOES NOT support:
+	- cut-through mode
+	- AXI4 (non-lite)
+
+Required properties:
+- compatible: Should be one of:
+    "xlnx,axi-fifo-mm-s-4.1"
+    "xlnx,axi-fifo-mm-s-4.2"
+    "xlnx,axi-fifo-mm-s-4.3"
+- interrupt-names: Should be "interrupt"
+- interrupt-parent: Should be <&intc>
+- interrupts: Should contain interrupts lines.
+- reg: Should contain registers location and length.
+- xlnx,axi-str-rxd-protocol: Should be "XIL_AXI_STREAM_ETH_DATA"
+- xlnx,axi-str-rxd-tdata-width: Should be <0x20>
+- xlnx,axi-str-txc-protocol: Should be "XIL_AXI_STREAM_ETH_CTRL"
+- xlnx,axi-str-txc-tdata-width: Should be <0x20>
+- xlnx,axi-str-txd-protocol: Should be "XIL_AXI_STREAM_ETH_DATA"
+- xlnx,axi-str-txd-tdata-width: Should be <0x20>
+- xlnx,axis-tdest-width: AXI-Stream TDEST width (ignored by the driver)
+- xlnx,axis-tid-width: AXI-Stream TID width (ignored by the driver)
+- xlnx,axis-tuser-width: AXI-Stream TUSER width (ignored by the driver)
+- xlnx,data-interface-type: Should be <0x0> (ignored by the driver)
+- xlnx,has-axis-tdest: Should be <0x0> (this feature isn't supported)
+- xlnx,has-axis-tid: Should be <0x0> (this feature isn't supported)
+- xlnx,has-axis-tkeep: Should be <0x0> (this feature isn't supported)
+- xlnx,has-axis-tstrb: Should be <0x0> (this feature isn't supported)
+- xlnx,has-axis-tuser: Should be <0x0> (this feature isn't supported)
+- xlnx,rx-fifo-depth: Depth of RX FIFO in words
+- xlnx,rx-fifo-pe-threshold: RX programmable empty interrupt threshold
+	(ignored by the driver)
+- xlnx,rx-fifo-pf-threshold: RX programmable full interrupt threshold
+	(ignored by the driver)
+- xlnx,s-axi-id-width: Should be <0x4> (ignored by the driver)
+- xlnx,s-axi4-data-width: Should be <0x20> (ignored by the driver)
+- xlnx,select-xpm: Should be <0x0> (ignored by the driver)
+- xlnx,tx-fifo-depth: Depth of TX FIFO in words
+- xlnx,tx-fifo-pe-threshold: TX programmable empty interrupt threshold
+	(ignored by the driver)
+- xlnx,tx-fifo-pf-threshold: TX programmable full interrupt threshold
+	(ignored by the driver)
+- xlnx,use-rx-cut-through: Should be <0x0> (this feature isn't supported)
+- xlnx,use-rx-data: <0x1> if RX FIFO is enabled, <0x0> otherwise
+- xlnx,use-tx-ctrl: Should be <0x0> (this feature isn't supported)
+- xlnx,use-tx-cut-through: Should be <0x0> (this feature isn't supported)
+- xlnx,use-tx-data: <0x1> if TX FIFO is enabled, <0x0> otherwise
+
+Example:
+
+axi_fifo_mm_s_0: axi_fifo_mm_s@43c00000 {
+	compatible = "xlnx,axi-fifo-mm-s-4.1";
+	interrupt-names = "interrupt";
+	interrupt-parent = <&intc>;
+	interrupts = <0 29 4>;
+	reg = <0x43c00000 0x10000>;
+	xlnx,axi-str-rxd-protocol = "XIL_AXI_STREAM_ETH_DATA";
+	xlnx,axi-str-rxd-tdata-width = <0x20>;
+	xlnx,axi-str-txc-protocol = "XIL_AXI_STREAM_ETH_CTRL";
+	xlnx,axi-str-txc-tdata-width = <0x20>;
+	xlnx,axi-str-txd-protocol = "XIL_AXI_STREAM_ETH_DATA";
+	xlnx,axi-str-txd-tdata-width = <0x20>;
+	xlnx,axis-tdest-width = <0x4>;
+	xlnx,axis-tid-width = <0x4>;
+	xlnx,axis-tuser-width = <0x4>;
+	xlnx,data-interface-type = <0x0>;
+	xlnx,has-axis-tdest = <0x0>;
+	xlnx,has-axis-tid = <0x0>;
+	xlnx,has-axis-tkeep = <0x0>;
+	xlnx,has-axis-tstrb = <0x0>;
+	xlnx,has-axis-tuser = <0x0>;
+	xlnx,rx-fifo-depth = <0x200>;
+	xlnx,rx-fifo-pe-threshold = <0x2>;
+	xlnx,rx-fifo-pf-threshold = <0x1fb>;
+	xlnx,s-axi-id-width = <0x4>;
+	xlnx,s-axi4-data-width = <0x20>;
+	xlnx,select-xpm = <0x0>;
+	xlnx,tx-fifo-depth = <0x8000>;
+	xlnx,tx-fifo-pe-threshold = <0x200>;
+	xlnx,tx-fifo-pf-threshold = <0x7ffb>;
+	xlnx,use-rx-cut-through = <0x0>;
+	xlnx,use-rx-data = <0x0>;
+	xlnx,use-tx-ctrl = <0x0>;
+	xlnx,use-tx-cut-through = <0x0>;
+	xlnx,use-tx-data = <0x1>;
+};
diff --git a/drivers/staging/board/Kconfig b/drivers/staging/board/Kconfig
deleted file mode 100644
index 3f287c48e082..000000000000
--- a/drivers/staging/board/Kconfig
+++ /dev/null
@@ -1,8 +0,0 @@
-config STAGING_BOARD
-	bool "Staging Board Support"
-	depends on OF_ADDRESS && OF_IRQ && CLKDEV_LOOKUP
-	help
-	  Select to enable per-board staging support code.
-
-	  If in doubt, say N here.
-
diff --git a/drivers/staging/board/Makefile b/drivers/staging/board/Makefile
deleted file mode 100644
index 6842745feb94..000000000000
--- a/drivers/staging/board/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-y	:= board.o
-obj-$(CONFIG_ARCH_EMEV2)	+= kzm9d.o
-obj-$(CONFIG_ARCH_R8A7740)	+= armadillo800eva.o
diff --git a/drivers/staging/board/TODO b/drivers/staging/board/TODO
deleted file mode 100644
index 8db70e10aa67..000000000000
--- a/drivers/staging/board/TODO
+++ /dev/null
@@ -1,2 +0,0 @@
-* replace platform device code with DT nodes once the driver supports DT
-* remove staging board code when no more platform devices are needed
diff --git a/drivers/staging/board/armadillo800eva.c b/drivers/staging/board/armadillo800eva.c
deleted file mode 100644
index 9c41652ee908..000000000000
--- a/drivers/staging/board/armadillo800eva.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Staging board support for Armadillo 800 eva.
- * Enable not-yet-DT-capable devices here.
- *
- * Based on board-armadillo800eva.c
- *
- * Copyright (C) 2012 Renesas Solutions Corp.
- * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/fb.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/videodev2.h>
-
-#include <video/sh_mobile_lcdc.h>
-
-#include "board.h"
-
-
-static struct fb_videomode lcdc0_mode = {
-	.name		= "AMPIER/AM-800480",
-	.xres		= 800,
-	.yres		= 480,
-	.left_margin	= 88,
-	.right_margin	= 40,
-	.hsync_len	= 128,
-	.upper_margin	= 20,
-	.lower_margin	= 5,
-	.vsync_len	= 5,
-	.sync		= 0,
-};
-
-static struct sh_mobile_lcdc_info lcdc0_info = {
-	.clock_source	= LCDC_CLK_BUS,
-	.ch[0] = {
-		.chan		= LCDC_CHAN_MAINLCD,
-		.fourcc		= V4L2_PIX_FMT_RGB565,
-		.interface_type	= RGB24,
-		.clock_divider	= 5,
-		.flags		= 0,
-		.lcd_modes	= &lcdc0_mode,
-		.num_modes	= 1,
-		.panel_cfg = {
-			.width	= 111,
-			.height = 68,
-		},
-	},
-};
-
-static struct resource lcdc0_resources[] = {
-	[0] = {
-		.name	= "LCD0",
-		.start	= 0xfe940000,
-		.end	= 0xfe943fff,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= 177 + 32,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device lcdc0_device = {
-	.name		= "sh_mobile_lcdc_fb",
-	.num_resources	= ARRAY_SIZE(lcdc0_resources),
-	.resource	= lcdc0_resources,
-	.id		= 0,
-	.dev	= {
-		.platform_data	= &lcdc0_info,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-};
-
-static const struct board_staging_clk lcdc0_clocks[] __initconst = {
-	{ "lcdc0", NULL, "sh_mobile_lcdc_fb.0" },
-};
-
-static const struct board_staging_dev armadillo800eva_devices[] __initconst = {
-	{
-		.pdev		= &lcdc0_device,
-		.clocks		= lcdc0_clocks,
-		.nclocks	= ARRAY_SIZE(lcdc0_clocks),
-		.domain		= "/system-controller@e6180000/pm-domains/c5/a4lc@1"
-	},
-};
-
-static void __init armadillo800eva_init(void)
-{
-	board_staging_gic_setup_xlate("arm,cortex-a9-gic", 32);
-	board_staging_register_devices(armadillo800eva_devices,
-				       ARRAY_SIZE(armadillo800eva_devices));
-}
-
-board_staging("renesas,armadillo800eva", armadillo800eva_init);
diff --git a/drivers/staging/board/board.c b/drivers/staging/board/board.c
deleted file mode 100644
index 3eb5eb8f069c..000000000000
--- a/drivers/staging/board/board.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * Copyright (C) 2014 Magnus Damm
- * Copyright (C) 2015 Glider bvba
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#define pr_fmt(fmt)	"board_staging: "  fmt
-
-#include <linux/clkdev.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-
-#include "board.h"
-
-static struct device_node *irqc_node __initdata;
-static unsigned int irqc_base __initdata;
-
-static bool find_by_address(u64 base_address)
-{
-	struct device_node *dn = of_find_all_nodes(NULL);
-	struct resource res;
-
-	while (dn) {
-		if (!of_address_to_resource(dn, 0, &res)) {
-			if (res.start == base_address) {
-				of_node_put(dn);
-				return true;
-			}
-		}
-		dn = of_find_all_nodes(dn);
-	}
-
-	return false;
-}
-
-bool __init board_staging_dt_node_available(const struct resource *resource,
-					    unsigned int num_resources)
-{
-	unsigned int i;
-
-	for (i = 0; i < num_resources; i++) {
-		const struct resource *r = resource + i;
-
-		if (resource_type(r) == IORESOURCE_MEM)
-			if (find_by_address(r->start))
-				return true; /* DT node available */
-	}
-
-	return false; /* Nothing found */
-}
-
-int __init board_staging_gic_setup_xlate(const char *gic_match,
-					 unsigned int base)
-{
-	WARN_ON(irqc_node);
-
-	irqc_node = of_find_compatible_node(NULL, NULL, gic_match);
-
-	WARN_ON(!irqc_node);
-	if (!irqc_node)
-		return -ENOENT;
-
-	irqc_base = base;
-	return 0;
-}
-
-static void __init gic_fixup_resource(struct resource *res)
-{
-	struct of_phandle_args irq_data;
-	unsigned int hwirq = res->start;
-	unsigned int virq;
-
-	if (resource_type(res) != IORESOURCE_IRQ || !irqc_node)
-		return;
-
-	irq_data.np = irqc_node;
-	irq_data.args_count = 3;
-	irq_data.args[0] = 0;
-	irq_data.args[1] = hwirq - irqc_base;
-	switch (res->flags &
-		(IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE |
-		 IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL)) {
-	case IORESOURCE_IRQ_LOWEDGE:
-		irq_data.args[2] = IRQ_TYPE_EDGE_FALLING;
-		break;
-	case IORESOURCE_IRQ_HIGHEDGE:
-		irq_data.args[2] = IRQ_TYPE_EDGE_RISING;
-		break;
-	case IORESOURCE_IRQ_LOWLEVEL:
-		irq_data.args[2] = IRQ_TYPE_LEVEL_LOW;
-		break;
-	case IORESOURCE_IRQ_HIGHLEVEL:
-	default:
-		irq_data.args[2] = IRQ_TYPE_LEVEL_HIGH;
-		break;
-	}
-
-	virq = irq_create_of_mapping(&irq_data);
-	if (WARN_ON(!virq))
-		return;
-
-	pr_debug("hwirq %u -> virq %u\n", hwirq, virq);
-	res->start = virq;
-}
-
-void __init board_staging_gic_fixup_resources(struct resource *res,
-					      unsigned int nres)
-{
-	unsigned int i;
-
-	for (i = 0; i < nres; i++)
-		gic_fixup_resource(&res[i]);
-}
-
-int __init board_staging_register_clock(const struct board_staging_clk *bsc)
-{
-	int error;
-
-	pr_debug("Aliasing clock %s for con_id %s dev_id %s\n", bsc->clk,
-		 bsc->con_id, bsc->dev_id);
-	error = clk_add_alias(bsc->con_id, bsc->dev_id, bsc->clk, NULL);
-	if (error)
-		pr_err("Failed to alias clock %s (%d)\n", bsc->clk, error);
-
-	return error;
-}
-
-#ifdef CONFIG_PM_GENERIC_DOMAINS_OF
-static int board_staging_add_dev_domain(struct platform_device *pdev,
-					const char *domain)
-{
-	struct of_phandle_args pd_args;
-	struct generic_pm_domain *pd;
-	struct device_node *np;
-
-	np = of_find_node_by_path(domain);
-	if (!np) {
-		pr_err("Cannot find domain node %s\n", domain);
-		return -ENOENT;
-	}
-
-	pd_args.np = np;
-	pd_args.args_count = 0;
-	pd = of_genpd_get_from_provider(&pd_args);
-	if (IS_ERR(pd)) {
-		pr_err("Cannot find genpd %s (%ld)\n", domain, PTR_ERR(pd));
-		return PTR_ERR(pd);
-
-	}
-	pr_debug("Found genpd %s for device %s\n", pd->name, pdev->name);
-
-	return pm_genpd_add_device(pd, &pdev->dev);
-}
-#else
-static inline int board_staging_add_dev_domain(struct platform_device *pdev,
-					       const char *domain)
-{
-	return 0;
-}
-#endif
-
-int __init board_staging_register_device(const struct board_staging_dev *dev)
-{
-	struct platform_device *pdev = dev->pdev;
-	unsigned int i;
-	int error;
-
-	pr_debug("Trying to register device %s\n", pdev->name);
-	if (board_staging_dt_node_available(pdev->resource,
-					    pdev->num_resources)) {
-		pr_warn("Skipping %s, already in DT\n", pdev->name);
-		return -EEXIST;
-	}
-
-	board_staging_gic_fixup_resources(pdev->resource, pdev->num_resources);
-
-	for (i = 0; i < dev->nclocks; i++)
-		board_staging_register_clock(&dev->clocks[i]);
-
-	error = platform_device_register(pdev);
-	if (error) {
-		pr_err("Failed to register device %s (%d)\n", pdev->name,
-		       error);
-		return error;
-	}
-
-	if (dev->domain)
-		board_staging_add_dev_domain(pdev, dev->domain);
-
-	return error;
-}
-
-void __init board_staging_register_devices(const struct board_staging_dev *devs,
-					   unsigned int ndevs)
-{
-	unsigned int i;
-
-	for (i = 0; i < ndevs; i++)
-		board_staging_register_device(&devs[i]);
-}
diff --git a/drivers/staging/board/board.h b/drivers/staging/board/board.h
deleted file mode 100644
index 42ed12513220..000000000000
--- a/drivers/staging/board/board.h
+++ /dev/null
@@ -1,45 +0,0 @@
-#ifndef __BOARD_H__
-#define __BOARD_H__
-
-#include <linux/init.h>
-#include <linux/of.h>
-
-struct board_staging_clk {
-	const char *clk;
-	const char *con_id;
-	const char *dev_id;
-};
-
-struct board_staging_dev {
-	/* Platform Device */
-	struct platform_device *pdev;
-	/* Clocks (optional) */
-	const struct board_staging_clk *clocks;
-	unsigned int nclocks;
-	/* Generic PM Domain (optional) */
-	const char *domain;
-};
-
-struct resource;
-
-bool board_staging_dt_node_available(const struct resource *resource,
-				     unsigned int num_resources);
-int board_staging_gic_setup_xlate(const char *gic_match, unsigned int base);
-void board_staging_gic_fixup_resources(struct resource *res, unsigned int nres);
-int board_staging_register_clock(const struct board_staging_clk *bsc);
-int board_staging_register_device(const struct board_staging_dev *dev);
-void board_staging_register_devices(const struct board_staging_dev *devs,
-				    unsigned int ndevs);
-
-#define board_staging(str, fn)			\
-static int __init runtime_board_check(void)	\
-{						\
-	if (of_machine_is_compatible(str))	\
-		fn();				\
-						\
-	return 0;				\
-}						\
-						\
-device_initcall(runtime_board_check)
-
-#endif /* __BOARD_H__ */
diff --git a/drivers/staging/board/kzm9d.c b/drivers/staging/board/kzm9d.c
deleted file mode 100644
index 8d1eb09bc66e..000000000000
--- a/drivers/staging/board/kzm9d.c
+++ /dev/null
@@ -1,25 +0,0 @@
-/* Staging board support for KZM9D. Enable not-yet-DT-capable devices here. */
-
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include "board.h"
-
-static struct resource usbs1_res[] __initdata = {
-	DEFINE_RES_MEM(0xe2800000, 0x2000),
-	DEFINE_RES_IRQ(159),
-};
-
-static void __init kzm9d_init(void)
-{
-	board_staging_gic_setup_xlate("arm,cortex-a9-gic", 32);
-
-	if (!board_staging_dt_node_available(usbs1_res,
-					     ARRAY_SIZE(usbs1_res))) {
-		board_staging_gic_fixup_resources(usbs1_res,
-						  ARRAY_SIZE(usbs1_res));
-		platform_device_register_simple("emxx_udc", -1, usbs1_res,
-						ARRAY_SIZE(usbs1_res));
-	}
-}
-
-board_staging("renesas,kzm9d", kzm9d_init);
diff --git a/drivers/staging/clocking-wizard/Kconfig b/drivers/staging/clocking-wizard/Kconfig
deleted file mode 100644
index 357af02c562c..000000000000
--- a/drivers/staging/clocking-wizard/Kconfig
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# Xilinx Clocking Wizard Driver
-#
-
-config COMMON_CLK_XLNX_CLKWZRD
-	tristate "Xilinx Clocking Wizard"
-	depends on COMMON_CLK && OF
-	---help---
-	  Support for the Xilinx Clocking Wizard IP core clock generator.
diff --git a/drivers/staging/clocking-wizard/Makefile b/drivers/staging/clocking-wizard/Makefile
deleted file mode 100644
index 5ad352f521fe..000000000000
--- a/drivers/staging/clocking-wizard/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_COMMON_CLK_XLNX_CLKWZRD)	+= clk-xlnx-clock-wizard.o
diff --git a/drivers/staging/clocking-wizard/TODO b/drivers/staging/clocking-wizard/TODO
deleted file mode 100644
index ebe99db7d153..000000000000
--- a/drivers/staging/clocking-wizard/TODO
+++ /dev/null
@@ -1,12 +0,0 @@
-TODO:
-	- support for fractional multiplier
-	- support for fractional divider (output 0 only)
-	- support for set_rate() operations (may benefit from Stephen Boyd's
-	  refactoring of the clk primitives: https://lkml.org/lkml/2014/9/5/766)
-	- review arithmetic
-	  - overflow after multiplication?
-	  - maximize accuracy before divisions
-
-Patches to:
-	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-	Sören Brinkmann <soren.brinkmann@xilinx.com>
diff --git a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
deleted file mode 100644
index b8e2f611fd47..000000000000
--- a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
+++ /dev/null
@@ -1,345 +0,0 @@
-/*
- * Xilinx 'Clocking Wizard' driver
- *
- *  Copyright (C) 2013 - 2014 Xilinx
- *
- *  Sören Brinkmann <soren.brinkmann@xilinx.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License v2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/clk-provider.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/module.h>
-#include <linux/err.h>
-
-#define WZRD_NUM_OUTPUTS	7
-#define WZRD_ACLK_MAX_FREQ	250000000UL
-
-#define WZRD_CLK_CFG_REG(n)	(0x200 + 4 * (n))
-
-#define WZRD_CLkOUT0_FRAC_EN	BIT(18)
-#define WZRD_CLkFBOUT_FRAC_EN	BIT(26)
-
-#define WZRD_CLKFBOUT_MULT_SHIFT	8
-#define WZRD_CLKFBOUT_MULT_MASK		(0xff << WZRD_CLKFBOUT_MULT_SHIFT)
-#define WZRD_DIVCLK_DIVIDE_SHIFT	0
-#define WZRD_DIVCLK_DIVIDE_MASK		(0xff << WZRD_DIVCLK_DIVIDE_SHIFT)
-#define WZRD_CLKOUT_DIVIDE_SHIFT	0
-#define WZRD_CLKOUT_DIVIDE_MASK		(0xff << WZRD_DIVCLK_DIVIDE_SHIFT)
-
-enum clk_wzrd_int_clks {
-	wzrd_clk_mul,
-	wzrd_clk_mul_div,
-	wzrd_clk_int_max
-};
-
-/**
- * struct clk_wzrd:
- * @clk_data:		Clock data
- * @nb:			Notifier block
- * @base:		Memory base
- * @clk_in1:		Handle to input clock 'clk_in1'
- * @axi_clk:		Handle to input clock 's_axi_aclk'
- * @clks_internal:	Internal clocks
- * @clkout:		Output clocks
- * @speed_grade:	Speed grade of the device
- * @suspended:		Flag indicating power state of the device
- */
-struct clk_wzrd {
-	struct clk_onecell_data clk_data;
-	struct notifier_block nb;
-	void __iomem *base;
-	struct clk *clk_in1;
-	struct clk *axi_clk;
-	struct clk *clks_internal[wzrd_clk_int_max];
-	struct clk *clkout[WZRD_NUM_OUTPUTS];
-	int speed_grade;
-	bool suspended;
-};
-#define to_clk_wzrd(_nb) container_of(_nb, struct clk_wzrd, nb)
-
-/* maximum frequencies for input/output clocks per speed grade */
-static const unsigned long clk_wzrd_max_freq[] = {
-	800000000UL,
-	933000000UL,
-	1066000000UL
-};
-
-static int clk_wzrd_clk_notifier(struct notifier_block *nb, unsigned long event,
-				 void *data)
-{
-	unsigned long max;
-	struct clk_notifier_data *ndata = data;
-	struct clk_wzrd *clk_wzrd = to_clk_wzrd(nb);
-
-	if (clk_wzrd->suspended)
-		return NOTIFY_OK;
-
-	if (ndata->clk == clk_wzrd->clk_in1)
-		max = clk_wzrd_max_freq[clk_wzrd->speed_grade - 1];
-	else if (ndata->clk == clk_wzrd->axi_clk)
-		max = WZRD_ACLK_MAX_FREQ;
-	else
-		return NOTIFY_DONE;	/* should never happen */
-
-	switch (event) {
-	case PRE_RATE_CHANGE:
-		if (ndata->new_rate > max)
-			return NOTIFY_BAD;
-		return NOTIFY_OK;
-	case POST_RATE_CHANGE:
-	case ABORT_RATE_CHANGE:
-	default:
-		return NOTIFY_DONE;
-	}
-}
-
-static int __maybe_unused clk_wzrd_suspend(struct device *dev)
-{
-	struct clk_wzrd *clk_wzrd = dev_get_drvdata(dev);
-
-	clk_disable_unprepare(clk_wzrd->axi_clk);
-	clk_wzrd->suspended = true;
-
-	return 0;
-}
-
-static int __maybe_unused clk_wzrd_resume(struct device *dev)
-{
-	int ret;
-	struct clk_wzrd *clk_wzrd = dev_get_drvdata(dev);
-
-	ret = clk_prepare_enable(clk_wzrd->axi_clk);
-	if (ret) {
-		dev_err(dev, "unable to enable s_axi_aclk\n");
-		return ret;
-	}
-
-	clk_wzrd->suspended = false;
-
-	return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(clk_wzrd_dev_pm_ops, clk_wzrd_suspend,
-			 clk_wzrd_resume);
-
-static int clk_wzrd_probe(struct platform_device *pdev)
-{
-	int i, ret;
-	u32 reg;
-	unsigned long rate;
-	const char *clk_name;
-	struct clk_wzrd *clk_wzrd;
-	struct resource *mem;
-	struct device_node *np = pdev->dev.of_node;
-
-	clk_wzrd = devm_kzalloc(&pdev->dev, sizeof(*clk_wzrd), GFP_KERNEL);
-	if (!clk_wzrd)
-		return -ENOMEM;
-	platform_set_drvdata(pdev, clk_wzrd);
-
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	clk_wzrd->base = devm_ioremap_resource(&pdev->dev, mem);
-	if (IS_ERR(clk_wzrd->base))
-		return PTR_ERR(clk_wzrd->base);
-
-	ret = of_property_read_u32(np, "speed-grade", &clk_wzrd->speed_grade);
-	if (!ret) {
-		if (clk_wzrd->speed_grade < 1 || clk_wzrd->speed_grade > 3) {
-			dev_warn(&pdev->dev, "invalid speed grade '%d'\n",
-				 clk_wzrd->speed_grade);
-			clk_wzrd->speed_grade = 0;
-		}
-	}
-
-	clk_wzrd->clk_in1 = devm_clk_get(&pdev->dev, "clk_in1");
-	if (IS_ERR(clk_wzrd->clk_in1)) {
-		if (clk_wzrd->clk_in1 != ERR_PTR(-EPROBE_DEFER))
-			dev_err(&pdev->dev, "clk_in1 not found\n");
-		return PTR_ERR(clk_wzrd->clk_in1);
-	}
-
-	clk_wzrd->axi_clk = devm_clk_get(&pdev->dev, "s_axi_aclk");
-	if (IS_ERR(clk_wzrd->axi_clk)) {
-		if (clk_wzrd->axi_clk != ERR_PTR(-EPROBE_DEFER))
-			dev_err(&pdev->dev, "s_axi_aclk not found\n");
-		return PTR_ERR(clk_wzrd->axi_clk);
-	}
-	ret = clk_prepare_enable(clk_wzrd->axi_clk);
-	if (ret) {
-		dev_err(&pdev->dev, "enabling s_axi_aclk failed\n");
-		return ret;
-	}
-	rate = clk_get_rate(clk_wzrd->axi_clk);
-	if (rate > WZRD_ACLK_MAX_FREQ) {
-		dev_err(&pdev->dev, "s_axi_aclk frequency (%lu) too high\n",
-			rate);
-		ret = -EINVAL;
-		goto err_disable_clk;
-	}
-
-	/* we don't support fractional div/mul yet */
-	reg = readl(clk_wzrd->base + WZRD_CLK_CFG_REG(0)) &
-		    WZRD_CLkFBOUT_FRAC_EN;
-	reg |= readl(clk_wzrd->base + WZRD_CLK_CFG_REG(2)) &
-		     WZRD_CLkOUT0_FRAC_EN;
-	if (reg)
-		dev_warn(&pdev->dev, "fractional div/mul not supported\n");
-
-	/* register multiplier */
-	reg = (readl(clk_wzrd->base + WZRD_CLK_CFG_REG(0)) &
-		     WZRD_CLKFBOUT_MULT_MASK) >> WZRD_CLKFBOUT_MULT_SHIFT;
-	clk_name = kasprintf(GFP_KERNEL, "%s_mul", dev_name(&pdev->dev));
-	if (!clk_name) {
-		ret = -ENOMEM;
-		goto err_disable_clk;
-	}
-	clk_wzrd->clks_internal[wzrd_clk_mul] = clk_register_fixed_factor(
-			&pdev->dev, clk_name,
-			__clk_get_name(clk_wzrd->clk_in1),
-			0, reg, 1);
-	kfree(clk_name);
-	if (IS_ERR(clk_wzrd->clks_internal[wzrd_clk_mul])) {
-		dev_err(&pdev->dev, "unable to register fixed-factor clock\n");
-		ret = PTR_ERR(clk_wzrd->clks_internal[wzrd_clk_mul]);
-		goto err_disable_clk;
-	}
-
-	/* register div */
-	reg = (readl(clk_wzrd->base + WZRD_CLK_CFG_REG(0)) &
-			WZRD_DIVCLK_DIVIDE_MASK) >> WZRD_DIVCLK_DIVIDE_SHIFT;
-	clk_name = kasprintf(GFP_KERNEL, "%s_mul_div", dev_name(&pdev->dev));
-	if (!clk_name) {
-		ret = -ENOMEM;
-		goto err_rm_int_clk;
-	}
-
-	clk_wzrd->clks_internal[wzrd_clk_mul_div] = clk_register_fixed_factor(
-			&pdev->dev, clk_name,
-			__clk_get_name(clk_wzrd->clks_internal[wzrd_clk_mul]),
-			0, 1, reg);
-	if (IS_ERR(clk_wzrd->clks_internal[wzrd_clk_mul_div])) {
-		dev_err(&pdev->dev, "unable to register divider clock\n");
-		ret = PTR_ERR(clk_wzrd->clks_internal[wzrd_clk_mul_div]);
-		goto err_rm_int_clk;
-	}
-
-	/* register div per output */
-	for (i = WZRD_NUM_OUTPUTS - 1; i >= 0 ; i--) {
-		const char *clkout_name;
-
-		if (of_property_read_string_index(np, "clock-output-names", i,
-						  &clkout_name)) {
-			dev_err(&pdev->dev,
-				"clock output name not specified\n");
-			ret = -EINVAL;
-			goto err_rm_int_clks;
-		}
-		reg = readl(clk_wzrd->base + WZRD_CLK_CFG_REG(2) + i * 12);
-		reg &= WZRD_CLKOUT_DIVIDE_MASK;
-		reg >>= WZRD_CLKOUT_DIVIDE_SHIFT;
-		clk_wzrd->clkout[i] = clk_register_fixed_factor(&pdev->dev,
-				clkout_name, clk_name, 0, 1, reg);
-		if (IS_ERR(clk_wzrd->clkout[i])) {
-			int j;
-
-			for (j = i + 1; j < WZRD_NUM_OUTPUTS; j++)
-				clk_unregister(clk_wzrd->clkout[j]);
-			dev_err(&pdev->dev,
-				"unable to register divider clock\n");
-			ret = PTR_ERR(clk_wzrd->clkout[i]);
-			goto err_rm_int_clks;
-		}
-	}
-
-	kfree(clk_name);
-
-	clk_wzrd->clk_data.clks = clk_wzrd->clkout;
-	clk_wzrd->clk_data.clk_num = ARRAY_SIZE(clk_wzrd->clkout);
-	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_wzrd->clk_data);
-
-	if (clk_wzrd->speed_grade) {
-		clk_wzrd->nb.notifier_call = clk_wzrd_clk_notifier;
-
-		ret = clk_notifier_register(clk_wzrd->clk_in1,
-					    &clk_wzrd->nb);
-		if (ret)
-			dev_warn(&pdev->dev,
-				 "unable to register clock notifier\n");
-
-		ret = clk_notifier_register(clk_wzrd->axi_clk, &clk_wzrd->nb);
-		if (ret)
-			dev_warn(&pdev->dev,
-				 "unable to register clock notifier\n");
-	}
-
-	return 0;
-
-err_rm_int_clks:
-	clk_unregister(clk_wzrd->clks_internal[1]);
-err_rm_int_clk:
-	kfree(clk_name);
-	clk_unregister(clk_wzrd->clks_internal[0]);
-err_disable_clk:
-	clk_disable_unprepare(clk_wzrd->axi_clk);
-
-	return ret;
-}
-
-static int clk_wzrd_remove(struct platform_device *pdev)
-{
-	int i;
-	struct clk_wzrd *clk_wzrd = platform_get_drvdata(pdev);
-
-	of_clk_del_provider(pdev->dev.of_node);
-
-	for (i = 0; i < WZRD_NUM_OUTPUTS; i++)
-		clk_unregister(clk_wzrd->clkout[i]);
-	for (i = 0; i < wzrd_clk_int_max; i++)
-		clk_unregister(clk_wzrd->clks_internal[i]);
-
-	if (clk_wzrd->speed_grade) {
-		clk_notifier_unregister(clk_wzrd->axi_clk, &clk_wzrd->nb);
-		clk_notifier_unregister(clk_wzrd->clk_in1, &clk_wzrd->nb);
-	}
-
-	clk_disable_unprepare(clk_wzrd->axi_clk);
-
-	return 0;
-}
-
-static const struct of_device_id clk_wzrd_ids[] = {
-	{ .compatible = "xlnx,clocking-wizard" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, clk_wzrd_ids);
-
-static struct platform_driver clk_wzrd_driver = {
-	.driver = {
-		.name = "clk-wizard",
-		.of_match_table = clk_wzrd_ids,
-		.pm = &clk_wzrd_dev_pm_ops,
-	},
-	.probe = clk_wzrd_probe,
-	.remove = clk_wzrd_remove,
-};
-module_platform_driver(clk_wzrd_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Soeren Brinkmann <soren.brinkmann@xilinx.com");
-MODULE_DESCRIPTION("Driver for the Xilinx Clocking Wizard IP core");
diff --git a/drivers/staging/clocking-wizard/dt-binding.txt b/drivers/staging/clocking-wizard/dt-binding.txt
deleted file mode 100644
index 723271e93316..000000000000
--- a/drivers/staging/clocking-wizard/dt-binding.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Binding for Xilinx Clocking Wizard IP Core
-
-This binding uses the common clock binding[1]. Details about the devices can be
-found in the product guide[2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Clocking Wizard Product Guide
-http://www.xilinx.com/support/documentation/ip_documentation/clk_wiz/v5_1/pg065-clk-wiz.pdf
-
-Required properties:
- - compatible: Must be 'xlnx,clocking-wizard'
- - reg: Base and size of the cores register space
- - clocks: Handle to input clock
- - clock-names: Tuple containing 'clk_in1' and 's_axi_aclk'
- - clock-output-names: Names for the output clocks
-
-Optional properties:
- - speed-grade: Speed grade of the device (valid values are 1..3)
-
-Example:
-	clock-generator@40040000 {
-		reg = <0x40040000 0x1000>;
-		compatible = "xlnx,clocking-wizard";
-		speed-grade = <1>;
-		clock-names = "clk_in1", "s_axi_aclk";
-		clocks = <&clkc 15>, <&clkc 15>;
-		clock-output-names = "clk_out0", "clk_out1", "clk_out2",
-				     "clk_out3", "clk_out4", "clk_out5",
-				     "clk_out6", "clk_out7";
-	};
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
deleted file mode 100644
index 57e71f9f14a2..000000000000
--- a/drivers/staging/comedi/Kconfig
+++ /dev/null
@@ -1,1312 +0,0 @@
-config COMEDI
-	tristate "Data acquisition support (comedi)"
-	depends on m
-	---help---
-	  Enable support for a wide range of data acquisition devices
-	  for Linux.
-
-if COMEDI
-
-config COMEDI_DEBUG
-	bool "Comedi debugging"
-	---help---
-	  This is an option for use by developers; most people should
-	  say N here. This enables comedi core and driver debugging.
-
-config COMEDI_DEFAULT_BUF_SIZE_KB
-	int "Comedi default initial asynchronous buffer size in KiB"
-	default "2048"
-	---help---
-	  This is the default asynchronous buffer size which is used for
-	  commands running in the background in kernel space.  This
-	  defaults to 2048 KiB of memory so that a 16 channel card
-	  running at 10 kHz has of 2-4 seconds of buffer.
-
-config COMEDI_DEFAULT_BUF_MAXSIZE_KB
-	int "Comedi default maximum asynchronous buffer size in KiB"
-	default "20480"
-	---help---
-	  This is the default maximum asynchronous buffer size which can
-	  be requested by a userspace program without root privileges.
-	  This is set to 20480 KiB so that a fast I/O card with 16
-	  channels running at 100 kHz has 2-4 seconds of buffer.
-
-menuconfig COMEDI_MISC_DRIVERS
-	bool "Comedi misc drivers"
-	---help---
-	  Enable comedi misc drivers to be built
-
-	  Note that the answer to this question won't directly affect the
-	  kernel: saying N will just cause the configurator to skip all
-	  the questions about misc non-hardware comedi drivers.
-
-if COMEDI_MISC_DRIVERS
-
-config COMEDI_BOND
-	tristate "Comedi device bonding support"
-	select COMEDI_KCOMEDILIB
-	---help---
-	  Enable support for a driver to 'bond' (merge) multiple subdevices
-	  from multiple devices together as one.
-
-	  Currently, it only handles digital I/O subdevices.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called comedi_bond.
-
-config COMEDI_TEST
-	tristate "Fake waveform generator support"
-	---help---
-	  Enable support for the fake waveform generator.
-	  This driver is mainly for testing purposes, but can also be used to
-	  generate sample waveforms on systems that don't have data acquisition
-	  hardware.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called comedi_test.
-
-config COMEDI_PARPORT
-	tristate "Parallel port support"
-	---help---
-	  Enable support for the standard parallel port.
-	  A cheap and easy way to get a few more digital I/O lines. Steal
-	  additional parallel ports from old computers or your neighbors'
-	  computers.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called comedi_parport.
-
-config COMEDI_SERIAL2002
-	tristate "Driver for serial connected hardware"
-	---help---
-	  Enable support for serial connected hardware
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called serial2002.
-
-config COMEDI_SSV_DNP
-	tristate "SSV Embedded Systems DIL/Net-PC support"
-	depends on X86_32 || COMPILE_TEST
-	---help---
-	  Enable support for SSV Embedded Systems DIL/Net-PC
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ssv_dnp.
-
-endif # COMEDI_MISC_DRIVERS
-
-menuconfig COMEDI_ISA_DRIVERS
-	bool "Comedi ISA and PC/104 drivers"
-	---help---
-	  Enable comedi ISA and PC/104 drivers to be built
-
-	  Note that the answer to this question won't directly affect the
-	  kernel: saying N will just cause the configurator to skip all
-	  the questions about ISA and PC/104 comedi drivers.
-
-if COMEDI_ISA_DRIVERS
-
-config COMEDI_PCL711
-	tristate "Advantech PCL-711/711b and ADlink ACL-8112 ISA card support"
-	select COMEDI_8254
-	---help---
-	  Enable support for Advantech PCL-711 and 711b, ADlink ACL-8112
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcl711.
-
-config COMEDI_PCL724
-	tristate "Advantech PCL-722/724/731 and ADlink ACL-7122/7124/PET-48DIO"
-	select COMEDI_8255
-	---help---
-	  Enable support for ISA and PC/104 based 8255 digital i/o boards. This
-	  driver provides a legacy comedi driver wrapper for the generic 8255
-	  support driver.
-
-	  Supported boards include:
-	    Advantech PCL-724            24 channels
-	    Advantech PCL-722            144 (or 96) channels
-	    Advantech PCL-731            48 channels
-	    ADlink ACL-7122              144 (or 96) channels
-	    ADlink ACL-7124              24 channels
-	    ADlink PET-48DIO             48 channels
-	    WinSystems PCM-IO48          48 channels (PC/104)
-	    Diamond Systems ONYX-MM-DIO  48 channels (PC/104)
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcl724.
-
-config COMEDI_PCL726
-	tristate "Advantech PCL-726 and compatible ISA card support"
-	---help---
-	  Enable support for Advantech PCL-726 and compatible ISA cards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcl726.
-
-config COMEDI_PCL730
-	tristate "Simple Digital I/O board support (8-bit ports)"
-	---help---
-	  Enable support for various simple ISA or PC/104 Digital I/O boards.
-	  These boards all use 8-bit I/O ports.
-
-	  Advantech PCL-730             iso - 16 in/16 out  ttl - 16 in/16 out
-	  ICP ISO-730                   iso - 16 in/16 out  ttl - 16 in/16 out
-	  ADlink ACL-7130               iso - 16 in/16 out  ttl - 16 in/16 out
-	  Advantech PCM-3730            iso - 8 in/8 out    ttl - 16 in/16 out
-	  Advantech PCL-725             iso - 8 in/8 out
-	  ICP P8R8-DIO                  iso - 8 in/8 out
-	  ADlink ACL-7225b              iso - 16 in/16 out
-	  ICP P16R16-DIO                iso - 16 in/16 out
-	  Advantech PCL-733             iso - 32 in
-	  Advantech PCL-734             iso - 32 out
-	  Diamond Systems OPMM-1616-XT  iso - 16 in/16 out
-	  Diamond Systems PEARL-MM-P    iso - 16 out
-	  Diamond Systems IR104-PBF     iso - 20 in/20 out
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcl730.
-
-config COMEDI_PCL812
-	tristate "Advantech PCL-812/813 and ADlink ACL-8112/8113/8113/8216"
-	select COMEDI_ISADMA if ISA_DMA_API
-	select COMEDI_8254
-	---help---
-	  Enable support for Advantech PCL-812/PG, PCL-813/B, ADLink
-	  ACL-8112DG/HG/PG, ACL-8113, ACL-8216, ICP DAS A-821PGH/PGL/PGL-NDA,
-	  A-822PGH/PGL, A-823PGH/PGL, A-826PG and ICP DAS ISO-813 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcl812.
-
-config COMEDI_PCL816
-	tristate "Advantech PCL-814 and PCL-816 ISA card support"
-	select COMEDI_ISADMA if ISA_DMA_API
-	select COMEDI_8254
-	---help---
-	  Enable support for Advantech PCL-814 and PCL-816 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcl816.
-
-config COMEDI_PCL818
-	tristate "Advantech PCL-718 and PCL-818 ISA card support"
-	select COMEDI_ISADMA if ISA_DMA_API
-	select COMEDI_8254
-	---help---
-	  Enable support for Advantech PCL-818 ISA cards
-	  PCL-818L, PCL-818H, PCL-818HD, PCL-818HG, PCL-818 and PCL-718
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcl818.
-
-config COMEDI_PCM3724
-	tristate "Advantech PCM-3724 PC/104 card support"
-	select COMEDI_8255
-	---help---
-	  Enable support for Advantech PCM-3724 PC/104 cards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcm3724.
-
-config COMEDI_AMPLC_DIO200_ISA
-	tristate "Amplicon PC212E/PC214E/PC215E/PC218E/PC272E"
-	select COMEDI_AMPLC_DIO200
-	---help---
-	  Enable support for Amplicon PC212E, PC214E, PC215E, PC218E and
-	  PC272E ISA DIO boards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_dio200.
-
-config COMEDI_AMPLC_PC236_ISA
-	tristate "Amplicon PC36AT DIO board support"
-	select COMEDI_AMPLC_PC236
-	---help---
-	  Enable support for Amplicon PC36AT ISA DIO board.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_pc236.
-
-config COMEDI_AMPLC_PC263_ISA
-	tristate "Amplicon PC263 relay board support"
-	---help---
-	  Enable support for Amplicon PC263 ISA relay board.  This board has
-	  16 reed relay output channels.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_pc263.
-
-config COMEDI_RTI800
-	tristate "Analog Devices RTI-800/815 ISA card support"
-	---help---
-	  Enable support for Analog Devices RTI-800/815 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called rti800.
-
-config COMEDI_RTI802
-	tristate "Analog Devices RTI-802 ISA card support"
-	---help---
-	  Enable support for Analog Devices RTI-802 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called rti802.
-
-config COMEDI_DAC02
-	tristate "Keithley Metrabyte DAC02 compatible ISA card support"
-	---help---
-	  Enable support for Keithley Metrabyte DAC02 compatible ISA cards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dac02.
-
-config COMEDI_DAS16M1
-	tristate "MeasurementComputing CIO-DAS16/M1DAS-16 ISA card support"
-	select COMEDI_8254
-	select COMEDI_8255
-	---help---
-	  Enable support for Measurement Computing CIO-DAS16/M1 ISA cards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das16m1.
-
-config COMEDI_DAS08_ISA
-	tristate "DAS-08 compatible ISA and PC/104 card support"
-	select COMEDI_DAS08
-	---help---
-	  Enable support for Keithley Metrabyte/ComputerBoards DAS08
-	  and compatible ISA and PC/104 cards:
-	  Keithley Metrabyte/ComputerBoards DAS08, DAS08-PGM, DAS08-PGH,
-	  DAS08-PGL, DAS08-AOH, DAS08-AOL, DAS08-AOM, DAS08/JR-AO,
-	  DAS08/JR-16-AO, PC104-DAS08, DAS08/JR/16.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das08_isa.
-
-config COMEDI_DAS16
-	tristate "DAS-16 compatible ISA and PC/104 card support"
-	select COMEDI_ISADMA if ISA_DMA_API
-	select COMEDI_8254
-	select COMEDI_8255
-	---help---
-	  Enable support for Keithley Metrabyte/ComputerBoards DAS16
-	  and compatible ISA and PC/104 cards:
-	  Keithley Metrabyte DAS-16, DAS-16G, DAS-16F, DAS-1201, DAS-1202,
-	  DAS-1401, DAS-1402, DAS-1601, DAS-1602 and
-	  ComputerBoards/MeasurementComputing PC104-DAS16/JR/,
-	  PC104-DAS16JR/16, CIO-DAS16JR/16, CIO-DAS16/JR, CIO-DAS1401/12,
-	  CIO-DAS1402/12, CIO-DAS1402/16, CIO-DAS1601/12, CIO-DAS1602/12,
-	  CIO-DAS1602/16, CIO-DAS16/330
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das16.
-
-config COMEDI_DAS800
-	tristate "DAS800 and compatible ISA card support"
-	select COMEDI_8254
-	---help---
-	  Enable support for Keithley Metrabyte DAS800 and compatible ISA cards
-	  Keithley Metrabyte DAS-800, DAS-801, DAS-802
-	  Measurement Computing CIO-DAS800, CIO-DAS801, CIO-DAS802 and
-	  CIO-DAS802/16
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das800.
-
-config COMEDI_DAS1800
-	tristate "DAS1800 and compatible ISA card support"
-	select COMEDI_ISADMA if ISA_DMA_API
-	select COMEDI_8254
-	---help---
-	  Enable support for DAS1800 and compatible ISA cards
-	  Keithley Metrabyte DAS-1701ST, DAS-1701ST-DA, DAS-1701/AO,
-	  DAS-1702ST, DAS-1702ST-DA, DAS-1702HR, DAS-1702HR-DA, DAS-1702/AO,
-	  DAS-1801ST, DAS-1801ST-DA, DAS-1801HC, DAS-1801AO, DAS-1802ST,
-	  DAS-1802ST-DA, DAS-1802HR, DAS-1802HR-DA, DAS-1802HC and
-	  DAS-1802AO
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das1800.
-
-config COMEDI_DAS6402
-	tristate "DAS6402 and compatible ISA card support"
-	select COMEDI_8254
-	---help---
-	  Enable support for DAS6402 and compatible ISA cards
-	  Computerboards, Keithley Metrabyte DAS6402 and compatibles
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das6402.
-
-config COMEDI_DT2801
-	tristate "Data Translation DT2801 ISA card support"
-	---help---
-	  Enable support for Data Translation DT2801 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt2801.
-
-config COMEDI_DT2811
-	tristate "Data Translation DT2811 ISA card support"
-	---help---
-	  Enable support for Data Translation DT2811 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt2811.
-
-config COMEDI_DT2814
-	tristate "Data Translation DT2814 ISA card support"
-	---help---
-	  Enable support for Data Translation DT2814 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt2814.
-
-config COMEDI_DT2815
-	tristate "Data Translation DT2815 ISA card support"
-	---help---
-	  Enable support for Data Translation DT2815 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt2815.
-
-config COMEDI_DT2817
-	tristate "Data Translation DT2817 ISA card support"
-	---help---
-	  Enable support for Data Translation DT2817 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt2817.
-
-config COMEDI_DT282X
-	tristate "Data Translation DT2821 series and DT-EZ ISA card support"
-	select COMEDI_ISADMA if ISA_DMA_API
-	---help---
-	  Enable support for Data Translation DT2821 series including DT-EZ
-	  DT2821, DT2821-F-16SE, DT2821-F-8DI, DT2821-G-16SE, DT2821-G-8DI,
-	  DT2823 (dt2823), DT2824-PGH, DT2824-PGL, DT2825, DT2827, DT2828,
-	  DT21-EZ, DT23-EZ, DT24-EZ and DT24-EZ-PGL
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt282x.
-
-config COMEDI_DMM32AT
-	tristate "Diamond Systems MM-32-AT PC/104 board support"
-	select COMEDI_8255
-	---help---
-	  Enable support for Diamond Systems MM-32-AT PC/104 boards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dmm32at.
-
-config COMEDI_UNIOXX5
-	tristate "Fastwel UNIOxx-5 analog and digital io board support"
-	---help---
-	  Enable support for Fastwel UNIOxx-5 (analog and digital i/o) boards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called unioxx5.
-
-config COMEDI_FL512
-	tristate "FL512 ISA card support"
-	---help---
-	  Enable support for FL512 ISA card
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called fl512.
-
-config COMEDI_AIO_AIO12_8
-	tristate "I/O Products PC/104 AIO12-8 Analog I/O Board support"
-	select COMEDI_8255
-	---help---
-	  Enable support for I/O Products PC/104 AIO12-8 Analog I/O Board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called aio_aio12_8.
-
-config COMEDI_AIO_IIRO_16
-	tristate "I/O Products PC/104 IIRO16 Board support"
-	---help---
-	  Enable support for I/O Products PC/104 IIRO16 Relay And Isolated
-	  Input Board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called aio_iiro_16.
-
-config COMEDI_II_PCI20KC
-	tristate "Intelligent Instruments PCI-20001C carrier support"
-	depends on HAS_IOMEM
-	---help---
-	  Enable support for Intelligent Instruments PCI-20001C carrier
-	  PCI-20001, PCI-20006 and PCI-20341
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ii_pci20kc.
-
-config COMEDI_C6XDIGIO
-	tristate "Mechatronic Systems Inc. C6x_DIGIO DSP daughter card support"
-	---help---
-	  Enable support for Mechatronic Systems Inc. C6x_DIGIO DSP daughter
-	  card
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called c6xdigio.
-
-config COMEDI_MPC624
-	tristate "Micro/sys MPC-624 PC/104 board support"
-	---help---
-	  Enable support for Micro/sys MPC-624 PC/104 board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called mpc624.
-
-config COMEDI_ADQ12B
-	tristate "MicroAxial ADQ12-B data acquisition and control card support"
-	---help---
-	  Enable MicroAxial ADQ12-B daq and control card support.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adq12b.
-
-config COMEDI_NI_AT_A2150
-	tristate "NI AT-A2150 ISA card support"
-	select COMEDI_ISADMA if ISA_DMA_API
-	select COMEDI_8254
-	---help---
-	  Enable support for National Instruments AT-A2150 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_at_a2150.
-
-config COMEDI_NI_AT_AO
-	tristate "NI AT-AO-6/10 EISA card support"
-	select COMEDI_8254
-	---help---
-	  Enable support for National Instruments AT-AO-6/10 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_at_ao.
-
-config COMEDI_NI_ATMIO
-	tristate "NI AT-MIO E series ISA-PNP card support"
-	select COMEDI_8255
-	select COMEDI_NI_TIO
-	---help---
-	  Enable support for National Instruments AT-MIO E series cards
-	  National Instruments AT-MIO-16E-1 (ni_atmio),
-	  AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3,
-	  AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_atmio.
-
-config COMEDI_NI_ATMIO16D
-	tristate "NI AT-MIO-16/AT-MIO-16D series ISA card support"
-	select COMEDI_8255
-	---help---
-	  Enable support for National Instruments AT-MIO-16/AT-MIO-16D cards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_atmio16d.
-
-config COMEDI_NI_LABPC_ISA
-	tristate "NI Lab-PC and compatibles ISA support"
-	select COMEDI_NI_LABPC
-	select COMEDI_NI_LABPC_ISADMA if ISA_DMA_API
-	---help---
-	  Enable support for National Instruments Lab-PC and compatibles
-	  Lab-PC-1200, Lab-PC-1200AI, Lab-PC+.
-	  Kernel-level ISA plug-and-play support for the lab-pc-1200 boards has
-	  not yet been added to the driver.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_labpc.
-
-config COMEDI_PCMAD
-	tristate "Winsystems PCM-A/D12 and PCM-A/D16 PC/104 board support"
-	---help---
-	  Enable support for Winsystems PCM-A/D12 and PCM-A/D16 PC/104 boards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcmad.
-
-config COMEDI_PCMDA12
-	tristate "Winsystems PCM-D/A-12 8-channel AO PC/104 board support"
-	---help---
-	  Enable support for Winsystems PCM-D/A-12 8-channel AO PC/104 boards.
-	  Note that the board is not ISA-PNP capable and thus needs the I/O
-	  port comedi_config parameter.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcmda12.
-
-config COMEDI_PCMMIO
-	tristate "Winsystems PCM-MIO PC/104 board support"
-	---help---
-	  Enable support for Winsystems PCM-MIO multifunction PC/104 boards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcmmio.
-
-config COMEDI_PCMUIO
-	tristate "Winsystems PCM-UIO48A and PCM-UIO96A PC/104 board support"
-	---help---
-	  Enable support for PCM-UIO48A and PCM-UIO96A PC/104 boards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called pcmuio.
-
-config COMEDI_MULTIQ3
-	tristate "Quanser Consulting MultiQ-3 ISA card support"
-	---help---
-	  Enable support for Quanser Consulting MultiQ-3 ISA cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called multiq3.
-
-config COMEDI_S526
-	tristate "Sensoray s526 support"
-	---help---
-	  Enable support for Sensoray s526
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called s526.
-
-endif # COMEDI_ISA_DRIVERS
-
-menuconfig COMEDI_PCI_DRIVERS
-	tristate "Comedi PCI drivers"
-	depends on PCI
-	---help---
-	  Enable support for comedi PCI drivers.
-
-	  To compile this support as a module, choose M here: the module will
-	  be called comedi_pci.
-
-if COMEDI_PCI_DRIVERS
-
-config COMEDI_8255_PCI
-	tristate "Generic PCI based 8255 digital i/o board support"
-	select COMEDI_8255
-	---help---
-	  Enable support for PCI based 8255 digital i/o boards. This driver
-	  provides a PCI wrapper around the generic 8255 driver.
-
-	  Supported boards:
-	    ADlink - PCI-7224, PCI-7248, and PCI-7296
-	    Measurement Computing - PCI-DIO24, PCI-DIO24H, PCI-DIO48H and
-	                            PCI-DIO96H
-	    National Instruments - PCI-DIO-96, PCI-DIO-96B, PXI-6508, PCI-6503,
-	                           PCI-6503B, PCI-6503X, and PXI-6503
-
-	  To compile this driver as a module, choose M here: the module will
-	  be called 8255_pci.
-
-config COMEDI_ADDI_WATCHDOG
-	tristate
-	---help---
-	  Provides support for the watchdog subdevice found on many ADDI-DATA
-	  boards. This module will be automatically selected when needed. The
-	  module will be called addi_watchdog.
-
-config COMEDI_ADDI_APCI_1032
-	tristate "ADDI-DATA APCI_1032 support"
-	---help---
-	  Enable support for ADDI-DATA APCI_1032 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_1032.
-
-config COMEDI_ADDI_APCI_1500
-	tristate "ADDI-DATA APCI_1500 support"
-	---help---
-	  Enable support for ADDI-DATA APCI_1500 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_1500.
-
-config COMEDI_ADDI_APCI_1516
-	tristate "ADDI-DATA APCI-1016/1516/2016 support"
-	select COMEDI_ADDI_WATCHDOG
-	---help---
-	  Enable support for ADDI-DATA APCI-1016, APCI-1516 and APCI-2016 boards.
-	  These are 16 channel, optically isolated, digital I/O boards. The 1516
-	  and 2016 boards also have a watchdog for resetting the outputs to "0".
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_1516.
-
-config COMEDI_ADDI_APCI_1564
-	tristate "ADDI-DATA APCI_1564 support"
-	select COMEDI_ADDI_WATCHDOG
-	---help---
-	  Enable support for ADDI-DATA APCI_1564 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_1564.
-
-config COMEDI_ADDI_APCI_16XX
-	tristate "ADDI-DATA APCI_16xx support"
-	---help---
-	  Enable support for ADDI-DATA APCI_16xx cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_16xx.
-
-config COMEDI_ADDI_APCI_2032
-	tristate "ADDI-DATA APCI_2032 support"
-	select COMEDI_ADDI_WATCHDOG
-	---help---
-	  Enable support for ADDI-DATA APCI_2032 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_2032.
-
-config COMEDI_ADDI_APCI_2200
-	tristate "ADDI-DATA APCI_2200 support"
-	select COMEDI_ADDI_WATCHDOG
-	---help---
-	  Enable support for ADDI-DATA APCI_2200 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_2200.
-
-config COMEDI_ADDI_APCI_3120
-	tristate "ADDI-DATA APCI_3120/3001 support"
-	depends on HAS_DMA
-	---help---
-	  Enable support for ADDI-DATA APCI_3120/3001 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_3120.
-
-config COMEDI_ADDI_APCI_3501
-	tristate "ADDI-DATA APCI_3501 support"
-	---help---
-	  Enable support for ADDI-DATA APCI_3501 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_3501.
-
-config COMEDI_ADDI_APCI_3XXX
-	tristate "ADDI-DATA APCI_3xxx support"
-	---help---
-	  Enable support for ADDI-DATA APCI_3xxx cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called addi_apci_3xxx.
-
-config COMEDI_ADL_PCI6208
-	tristate "ADLink PCI-6208A support"
-	---help---
-	  Enable support for ADLink PCI-6208A cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci6208.
-
-config COMEDI_ADL_PCI7X3X
-	tristate "ADLink PCI-723X/743X isolated digital i/o board support"
-	---help---
-	  Enable support for ADlink PCI-723X/743X isolated digital i/o boards.
-	  Supported boards include the 32-channel PCI-7230 (16 in/16 out),
-	  PCI-7233 (32 in), and PCI-7234 (32 out) as well as the 64-channel
-	  PCI-7432 (32 in/32 out), PCI-7433 (64 in), and PCI-7434 (64 out).
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci7x3x.
-
-config COMEDI_ADL_PCI8164
-	tristate "ADLink PCI-8164 4 Axes Motion Control board support"
-	---help---
-	  Enable support for ADlink PCI-8164 4 Axes Motion Control board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci8164.
-
-config COMEDI_ADL_PCI9111
-	tristate "ADLink PCI-9111HR support"
-	select COMEDI_8254
-	---help---
-	  Enable support for ADlink PCI9111 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci9111.
-
-config COMEDI_ADL_PCI9118
-	tristate "ADLink PCI-9118DG, PCI-9118HG, PCI-9118HR support"
-	depends on HAS_DMA
-	select COMEDI_8254
-	---help---
-	  Enable support for ADlink PCI-9118DG, PCI-9118HG, PCI-9118HR cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adl_pci9118.
-
-config COMEDI_ADV_PCI1710
-	tristate "Advantech PCI-171x, PCI-1720 and PCI-1731 support"
-	select COMEDI_8254
-	---help---
-	  Enable support for Advantech PCI-1710, PCI-1710HG, PCI-1711,
-	  PCI-1713, PCI-1720 and PCI-1731
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adv_pci1710.
-
-config COMEDI_ADV_PCI1723
-	tristate "Advantech PCI-1723 support"
-	---help---
-	  Enable support for Advantech PCI-1723 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adv_pci1723.
-
-config COMEDI_ADV_PCI1724
-	tristate "Advantech PCI-1724U support"
-	---help---
-	  Enable support for Advantech PCI-1724U cards.  These are 32-channel
-	  analog output cards with voltage and current loop output ranges and
-	  14-bit resolution.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adv_pci1724.
-
-config COMEDI_ADV_PCI_DIO
-	tristate "Advantech PCI DIO card support"
-	select COMEDI_8254
-	select COMEDI_8255
-	---help---
-	  Enable support for Advantech PCI DIO cards
-	  PCI-1730, PCI-1733, PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U,
-	  PCI-1750, PCI-1751, PCI-1752, PCI-1753/E, PCI-1754, PCI-1756,
-	  PCI-1760 and PCI-1762
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called adv_pci_dio.
-
-config COMEDI_AMPLC_DIO200_PCI
-	tristate "Amplicon PCI215/PCI272/PCIe215/PCIe236/PCIe296 DIO support"
-	select COMEDI_AMPLC_DIO200
-	---help---
-	  Enable support for Amplicon PCI215, PCI272, PCIe215, PCIe236
-	  and PCIe296 DIO boards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_dio200_pci.
-
-config COMEDI_AMPLC_PC236_PCI
-	tristate "Amplicon PCI236 DIO board support"
-	select COMEDI_AMPLC_PC236
-	---help---
-	  Enable support for Amplicon PCI236 DIO board.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_pci236.
-
-config COMEDI_AMPLC_PC263_PCI
-	tristate "Amplicon PCI263 relay board support"
-	---help---
-	  Enable support for Amplicon PCI263 relay board.  This is a PCI board
-	  with 16 reed relay output channels.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_pci263.
-
-config COMEDI_AMPLC_PCI224
-	tristate "Amplicon PCI224 and PCI234 support"
-	select COMEDI_8254
-	---help---
-	  Enable support for Amplicon PCI224 and PCI234 AO boards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_pci224.
-
-config COMEDI_AMPLC_PCI230
-	tristate "Amplicon PCI230 and PCI260 support"
-	select COMEDI_8254
-	select COMEDI_8255
-	---help---
-	  Enable support for Amplicon PCI230 and PCI260 Multifunction I/O
-	  boards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called amplc_pci230.
-
-config COMEDI_CONTEC_PCI_DIO
-	tristate "Contec PIO1616L digital I/O board support"
-	---help---
-	  Enable support for the Contec PIO1616L digital I/O board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called contec_pci_dio.
-
-config COMEDI_DAS08_PCI
-	tristate "DAS-08 PCI support"
-	select COMEDI_DAS08
-	---help---
-	  Enable support for PCI DAS-08 cards.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das08_pci.
-
-config COMEDI_DT3000
-	tristate "Data Translation DT3000 series support"
-	---help---
-	  Enable support for Data Translation DT3000 series
-	  DT3001, DT3001-PGL, DT3002, DT3003, DT3003-PGL, DT3004, DT3005 and
-	  DT3004-200
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt3000.
-
-config COMEDI_DYNA_PCI10XX
-	tristate "Dynalog PCI DAQ series support"
-	---help---
-	  Enable support for Dynalog PCI DAQ series
-	  PCI-1050
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dyna_pci10xx.
-
-config COMEDI_GSC_HPDI
-	tristate "General Standards PCI-HPDI32 / PMC-HPDI32 support"
-	---help---
-	  Enable support for General Standards Corporation high speed parallel
-	  digital interface rs485 boards PCI-HPDI32 and PMC-HPDI32.
-	  Only receive mode works, transmit not supported.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called gsc_hpdi.
-
-config COMEDI_MF6X4
-	tristate "Humusoft MF634 and MF624 DAQ Card support"
-	---help---
-	  This driver supports both Humusoft MF634 and MF624 Data acquisition
-	  cards. The legacy Humusoft MF614 card is not supported.
-
-config COMEDI_ICP_MULTI
-	tristate "Inova ICP_MULTI support"
-	---help---
-	  Enable support for Inova ICP_MULTI card
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called icp_multi.
-
-config COMEDI_DAQBOARD2000
-	tristate "IOtech DAQboard/2000 support"
-	select COMEDI_8255
-	---help---
-	  Enable support for the IOtech DAQboard/2000
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called daqboard2000.
-
-config COMEDI_JR3_PCI
-	tristate "JR3/PCI force sensor board support"
-	---help---
-	  Enable support for JR3/PCI force sensor boards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called jr3_pci.
-
-config COMEDI_KE_COUNTER
-	tristate "Kolter-Electronic PCI Counter 1 card support"
-	---help---
-	  Enable support for Kolter-Electronic PCI Counter 1 cards
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ke_counter.
-
-config COMEDI_CB_PCIDAS64
-	tristate "MeasurementComputing PCI-DAS 64xx, 60xx, and 4020 support"
-	select COMEDI_8255
-	---help---
-	  Enable support for ComputerBoards/MeasurementComputing PCI-DAS 64xx,
-	  60xx, and 4020 series with the PLX 9080 PCI controller
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called cb_pcidas64.
-
-config COMEDI_CB_PCIDAS
-	tristate "MeasurementComputing PCI-DAS support"
-	select COMEDI_8254
-	select COMEDI_8255
-	---help---
-	  Enable support for ComputerBoards/MeasurementComputing PCI-DAS with
-	  AMCC S5933 PCIcontroller: PCI-DAS1602/16, PCI-DAS1602/16jr,
-	  PCI-DAS1602/12, PCI-DAS1200, PCI-DAS1200jr, PCI-DAS1000, PCI-DAS1001
-	  and PCI_DAS1002.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called cb_pcidas.
-
-config COMEDI_CB_PCIDDA
-	tristate "MeasurementComputing PCI-DDA series support"
-	select COMEDI_8255
-	---help---
-	  Enable support for ComputerBoards/MeasurementComputing PCI-DDA
-	  series: PCI-DDA08/12, PCI-DDA04/12, PCI-DDA02/12, PCI-DDA08/16,
-	  PCI-DDA04/16 and PCI-DDA02/16
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called cb_pcidda.
-
-config COMEDI_CB_PCIMDAS
-	tristate "MeasurementComputing PCIM-DAS1602/16, PCIe-DAS1602/16 support"
-	select COMEDI_8254
-	select COMEDI_8255
-	---help---
-	  Enable support for ComputerBoards/MeasurementComputing PCI Migration
-	  series PCIM-DAS1602/16 and PCIe-DAS1602/16.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called cb_pcimdas.
-
-config COMEDI_CB_PCIMDDA
-	tristate "MeasurementComputing PCIM-DDA06-16 support"
-	select COMEDI_8255
-	---help---
-	  Enable support for ComputerBoards/MeasurementComputing PCIM-DDA06-16
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called cb_pcimdda.
-
-config COMEDI_ME4000
-	tristate "Meilhaus ME-4000 support"
-	select COMEDI_8254
-	---help---
-	  Enable support for Meilhaus PCI data acquisition cards
-	  ME-4650, ME-4670i, ME-4680, ME-4680i and ME-4680is
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called me4000.
-
-config COMEDI_ME_DAQ
-	tristate "Meilhaus ME-2000i, ME-2600i, ME-3000vm1 support"
-	---help---
-	  Enable support for Meilhaus PCI data acquisition cards
-	  ME-2000i, ME-2600i and ME-3000vm1
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called me_daq.
-
-config COMEDI_NI_6527
-	tristate "NI 6527 support"
-	---help---
-	  Enable support for the National Instruments 6527 PCI card
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_6527.
-
-config COMEDI_NI_65XX
-	tristate "NI 65xx static dio PCI card support"
-	---help---
-	  Enable support for National Instruments 65xx static dio boards.
-	  Supported devices: National Instruments PCI-6509 (ni_65xx),
-	  PXI-6509, PCI-6510, PCI-6511, PXI-6511, PCI-6512, PXI-6512, PCI-6513,
-	  PXI-6513, PCI-6514, PXI-6514, PCI-6515, PXI-6515, PCI-6516, PCI-6517,
-	  PCI-6518, PCI-6519, PCI-6520, PCI-6521, PXI-6521, PCI-6528, PXI-6528
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_65xx.
-
-config COMEDI_NI_660X
-	tristate "NI 660x counter/timer PCI card support"
-	depends on HAS_DMA
-	select COMEDI_NI_TIOCMD
-	---help---
-	  Enable support for National Instruments PCI-6601 (ni_660x), PCI-6602,
-	  PXI-6602, PXI-6608 and PXI-6624.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_660x.
-
-config COMEDI_NI_670X
-	tristate "NI 670x PCI card support"
-	---help---
-	  Enable support for National Instruments PCI-6703 and PCI-6704
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_670x.
-
-config COMEDI_NI_LABPC_PCI
-	tristate "NI Lab-PC PCI-1200 support"
-	select COMEDI_NI_LABPC
-	---help---
-	  Enable support for National Instruments Lab-PC PCI-1200.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_labpc_pci.
-
-config COMEDI_NI_PCIDIO
-	tristate "NI PCI-DIO32HS, PCI-6533, PCI-6534 support"
-	depends on HAS_DMA
-	select COMEDI_MITE
-	select COMEDI_8255
-	---help---
-	  Enable support for National Instruments PCI-DIO-32HS, PXI-6533,
-	  PCI-6533 and PCI-6534
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_pcidio.
-
-config COMEDI_NI_PCIMIO
-	tristate "NI PCI-MIO-E series and M series support"
-	depends on HAS_DMA
-	select COMEDI_NI_TIOCMD
-	select COMEDI_8255
-	---help---
-	  Enable support for National Instruments PCI-MIO-E series and M series
-	  (all boards): PCI-MIO-16XE-10, PXI-6030E, PCI-MIO-16E-1,
-	  PCI-MIO-16E-4, PCI-6014, PCI-6040E, PXI-6040E, PCI-6030E, PCI-6031E,
-	  PCI-6032E, PCI-6033E, PCI-6071E, PCI-6023E, PCI-6024E, PCI-6025E,
-	  PXI-6025E, PCI-6034E, PCI-6035E, PCI-6052E, PCI-6110, PCI-6111,
-	  PCI-6220, PCI-6221, PCI-6224, PXI-6224, PCI-6225, PXI-6225, PCI-6229,
-	  PCI-6250, PCI-6251, PCIe-6251, PCI-6254, PCI-6259, PCIe-6259,
-	  PCI-6280, PCI-6281, PXI-6281, PCI-6284, PCI-6289, PCI-6711, PXI-6711,
-	  PCI-6713, PXI-6713, PXI-6071E, PCI-6070E, PXI-6070E, PXI-6052E,
-	  PCI-6036E, PCI-6731, PCI-6733, PXI-6733, PCI-6143, PXI-6143
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_pcimio.
-
-config COMEDI_RTD520
-	tristate "Real Time Devices PCI4520/DM7520 support"
-	---help---
-	  Enable support for Real Time Devices PCI4520/DM7520
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called rtd520.
-
-config COMEDI_S626
-	tristate "Sensoray 626 support"
-	---help---
-	  Enable support for Sensoray 626
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called s626.
-
-config COMEDI_MITE
-	depends on HAS_DMA
-	tristate
-
-config COMEDI_NI_TIOCMD
-	tristate
-	depends on HAS_DMA
-	select COMEDI_NI_TIO
-	select COMEDI_MITE
-
-endif # COMEDI_PCI_DRIVERS
-
-menuconfig COMEDI_PCMCIA_DRIVERS
-	tristate "Comedi PCMCIA drivers"
-	depends on PCMCIA
-	---help---
-	  Enable support for comedi PCMCIA drivers.
-
-	  To compile this support as a module, choose M here: the module will
-	  be called comedi_pcmcia.
-
-if COMEDI_PCMCIA_DRIVERS
-
-config COMEDI_CB_DAS16_CS
-	tristate "CB DAS16 series PCMCIA support"
-	select COMEDI_8254
-	---help---
-	  Enable support for the ComputerBoards/MeasurementComputing PCMCIA
-	  cards DAS16/16, PCM-DAS16D/12 and PCM-DAS16s/16
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called cb_das16_cs.
-
-config COMEDI_DAS08_CS
-	tristate "CB DAS08 PCMCIA support"
-	select COMEDI_DAS08
-	---help---
-	  Enable support for the ComputerBoards/MeasurementComputing DAS-08
-	  PCMCIA card
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called das08_cs.
-
-config COMEDI_NI_DAQ_700_CS
-	tristate "NI DAQCard-700 PCMCIA support"
-	---help---
-	  Enable support for the National Instruments PCMCIA DAQCard-700 DIO
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_daq_700.
-
-config COMEDI_NI_DAQ_DIO24_CS
-	tristate "NI DAQ-Card DIO-24 PCMCIA support"
-	select COMEDI_8255
-	---help---
-	  Enable support for the National Instruments PCMCIA DAQ-Card DIO-24
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_daq_dio24.
-
-config COMEDI_NI_LABPC_CS
-	tristate "NI DAQCard-1200 PCMCIA support"
-	select COMEDI_NI_LABPC
-	---help---
-	  Enable support for the National Instruments PCMCIA DAQCard-1200
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_labpc_cs.
-
-config COMEDI_NI_MIO_CS
-	tristate "NI DAQCard E series PCMCIA support"
-	select COMEDI_NI_TIO
-	select COMEDI_8255
-	---help---
-	  Enable support for the National Instruments PCMCIA DAQCard E series
-	  DAQCard-ai-16xe-50, DAQCard-ai-16e-4, DAQCard-6062E, DAQCard-6024E
-	  and DAQCard-6036E
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_mio_cs.
-
-config COMEDI_QUATECH_DAQP_CS
-	tristate "Quatech DAQP PCMCIA data capture card support"
-	---help---
-	  Enable support for the Quatech DAQP PCMCIA data capture cards
-	  DAQP-208 and DAQP-308
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called quatech_daqp_cs.
-
-endif # COMEDI_PCMCIA_DRIVERS
-
-menuconfig COMEDI_USB_DRIVERS
-	tristate "Comedi USB drivers"
-	depends on USB
-	---help---
-	  Enable support for comedi USB drivers.
-
-	  To compile this support as a module, choose M here: the module will
-	  be called comedi_usb.
-
-if COMEDI_USB_DRIVERS
-
-config COMEDI_DT9812
-	tristate "DataTranslation DT9812 USB module support"
-	---help---
-	  Enable support for the Data Translation DT9812 USB module
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called dt9812.
-
-config COMEDI_NI_USB6501
-	tristate "NI USB-6501 support"
-	---help---
-	  Enable support for the National Instruments USB-6501 module.
-
-	  The NI USB-6501 is a Full-Speed USB 2.0 (12 Mbit/s) device that
-	  provides 24 digital I/O lines channels and one 32-bit counter.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called ni_usb6501.
-
-config COMEDI_USBDUX
-	tristate "ITL USB-DUX-D support"
-	---help---
-	  Enable support for the Incite Technology Ltd USB-DUX-D Board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called usbdux.
-
-config COMEDI_USBDUXFAST
-	tristate "ITL USB-DUXfast support"
-	---help---
-	  Enable support for the Incite Technology Ltd USB-DUXfast Board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called usbduxfast.
-
-config COMEDI_USBDUXSIGMA
-	tristate "ITL USB-DUXsigma support"
-	---help---
-	  Enable support for the Incite Technology Ltd USB-DUXsigma Board
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called usbduxsigma.
-
-config COMEDI_VMK80XX
-	tristate "Velleman VM110/VM140 USB Board support"
-	---help---
-	  Build the Velleman USB Board Low-Level Driver supporting the
-	  K8055/K8061 aka VM110/VM140 devices
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called vmk80xx.
-
-endif # COMEDI_USB_DRIVERS
-
-config COMEDI_8254
-	tristate
-
-config COMEDI_8255
-	tristate
-
-config COMEDI_8255_SA
-	tristate "Standalone 8255 support"
-	select COMEDI_8255
-	---help---
-	  Enable support for 8255 digital I/O as a standalone driver.
-
-	  You should enable compilation this driver if you plan to use a board
-	  that has an 8255 chip at a known I/O base address and there are no
-	  other Comedi drivers for the board.
-
-	  Note that Comedi drivers for most multi-function boards incorporating
-	  an 8255 chip use the 'comedi_8255' module.  Most PCI-based 8255
-	  boards use the 8255_pci driver as a wrapper around the 'comedi_8255'
-	  module.
-
-	  To compile this driver as a module, choose M here: the module will be
-	  called 8255.
-
-config COMEDI_KCOMEDILIB
-	tristate "Comedi kcomedilib"
-	---help---
-	  Build the kcomedilib.
-
-	  This is a kernel module used to open and manipulate Comedi devices
-	  from within kernel code.  It is currently only used by the
-	  comedi_bond driver, and its functionality has been stripped down to
-	  the needs of that driver, so is currently not very useful for
-	  anything else.
-
-	  To compile kcomedilib as a module, choose M here: the module will be
-	  called kcomedilib.
-
-config COMEDI_AMPLC_DIO200
-	select COMEDI_8254
-	tristate
-
-config COMEDI_AMPLC_PC236
-	tristate
-	select COMEDI_8255
-
-config COMEDI_DAS08
-	tristate
-	select COMEDI_8254
-	select COMEDI_8255
-
-config COMEDI_ISADMA
-	tristate
-
-config COMEDI_NI_LABPC
-	tristate
-	select COMEDI_8254
-	select COMEDI_8255
-
-config COMEDI_NI_LABPC_ISADMA
-	tristate
-	select COMEDI_ISADMA
-
-config COMEDI_NI_TIO
-	tristate
-
-endif # COMEDI
diff --git a/drivers/staging/comedi/Makefile b/drivers/staging/comedi/Makefile
deleted file mode 100644
index 7f9dfb3923ab..000000000000
--- a/drivers/staging/comedi/Makefile
+++ /dev/null
@@ -1,15 +0,0 @@
-ccflags-$(CONFIG_COMEDI_DEBUG)		:= -DDEBUG
-
-comedi-y				:= comedi_fops.o range.o drivers.o \
-					   comedi_buf.o
-comedi-$(CONFIG_PROC_FS)		+= proc.o
-comedi-$(CONFIG_COMPAT)			+= comedi_compat32.o
-
-obj-$(CONFIG_COMEDI_PCI_DRIVERS)	+= comedi_pci.o
-obj-$(CONFIG_COMEDI_PCMCIA_DRIVERS)	+= comedi_pcmcia.o
-obj-$(CONFIG_COMEDI_USB_DRIVERS)	+= comedi_usb.o
-
-obj-$(CONFIG_COMEDI)			+= comedi.o
-
-obj-$(CONFIG_COMEDI)			+= kcomedilib/
-obj-$(CONFIG_COMEDI)			+= drivers/
diff --git a/drivers/staging/comedi/TODO b/drivers/staging/comedi/TODO
deleted file mode 100644
index b68fbdb5eebf..000000000000
--- a/drivers/staging/comedi/TODO
+++ /dev/null
@@ -1,11 +0,0 @@
-TODO:
-	- checkpatch.pl cleanups
-	- Lindent
-	- remove all wrappers
-	- audit userspace interface
-	- cleanup the individual comedi drivers as well
-
-Please send patches to Greg Kroah-Hartman <greg@kroah.com> and
-copy:
-	Ian Abbott <abbotti@mev.co.uk>
-	H Hartley Sweeten <hsweeten@visionengravers.com>
diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
deleted file mode 100644
index 66edda190b75..000000000000
--- a/drivers/staging/comedi/comedi.h
+++ /dev/null
@@ -1,937 +0,0 @@
-/*
-    include/comedi.h (installed as /usr/include/comedi.h)
-    header file for comedi
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#ifndef _COMEDI_H
-#define _COMEDI_H
-
-#define COMEDI_MAJORVERSION	0
-#define COMEDI_MINORVERSION	7
-#define COMEDI_MICROVERSION	76
-#define VERSION	"0.7.76"
-
-/* comedi's major device number */
-#define COMEDI_MAJOR 98
-
-/*
-   maximum number of minor devices.  This can be increased, although
-   kernel structures are currently statically allocated, thus you
-   don't want this to be much more than you actually use.
- */
-#define COMEDI_NDEVICES 16
-
-/* number of config options in the config structure */
-#define COMEDI_NDEVCONFOPTS 32
-
-/*
- * NOTE: 'comedi_config --init-data' is deprecated
- *
- * The following indexes in the config options were used by
- * comedi_config to pass firmware blobs from user space to the
- * comedi drivers. The request_firmware() hotplug interface is
- * now used by all comedi drivers instead.
- */
-
-/* length of nth chunk of firmware data -*/
-#define COMEDI_DEVCONF_AUX_DATA3_LENGTH		25
-#define COMEDI_DEVCONF_AUX_DATA2_LENGTH		26
-#define COMEDI_DEVCONF_AUX_DATA1_LENGTH		27
-#define COMEDI_DEVCONF_AUX_DATA0_LENGTH		28
-/* most significant 32 bits of pointer address (if needed) */
-#define COMEDI_DEVCONF_AUX_DATA_HI		29
-/* least significant 32 bits of pointer address */
-#define COMEDI_DEVCONF_AUX_DATA_LO		30
-#define COMEDI_DEVCONF_AUX_DATA_LENGTH		31	/* total data length */
-
-/* max length of device and driver names */
-#define COMEDI_NAMELEN 20
-
-/* packs and unpacks a channel/range number */
-
-#define CR_PACK(chan, rng, aref)					\
-	((((aref)&0x3)<<24) | (((rng)&0xff)<<16) | (chan))
-#define CR_PACK_FLAGS(chan, range, aref, flags)				\
-	(CR_PACK(chan, range, aref) | ((flags) & CR_FLAGS_MASK))
-
-#define CR_CHAN(a)	((a)&0xffff)
-#define CR_RANGE(a)	(((a)>>16)&0xff)
-#define CR_AREF(a)	(((a)>>24)&0x03)
-
-#define CR_FLAGS_MASK	0xfc000000
-#define CR_ALT_FILTER	(1<<26)
-#define CR_DITHER	CR_ALT_FILTER
-#define CR_DEGLITCH	CR_ALT_FILTER
-#define CR_ALT_SOURCE	(1<<27)
-#define CR_EDGE		(1<<30)
-#define CR_INVERT	(1<<31)
-
-#define AREF_GROUND	0x00	/* analog ref = analog ground */
-#define AREF_COMMON	0x01	/* analog ref = analog common */
-#define AREF_DIFF	0x02	/* analog ref = differential */
-#define AREF_OTHER	0x03	/* analog ref = other (undefined) */
-
-/* counters -- these are arbitrary values */
-#define GPCT_RESET		0x0001
-#define GPCT_SET_SOURCE		0x0002
-#define GPCT_SET_GATE		0x0004
-#define GPCT_SET_DIRECTION	0x0008
-#define GPCT_SET_OPERATION	0x0010
-#define GPCT_ARM		0x0020
-#define GPCT_DISARM		0x0040
-#define GPCT_GET_INT_CLK_FRQ	0x0080
-
-#define GPCT_INT_CLOCK		0x0001
-#define GPCT_EXT_PIN		0x0002
-#define GPCT_NO_GATE		0x0004
-#define GPCT_UP			0x0008
-#define GPCT_DOWN		0x0010
-#define GPCT_HWUD		0x0020
-#define GPCT_SIMPLE_EVENT	0x0040
-#define GPCT_SINGLE_PERIOD	0x0080
-#define GPCT_SINGLE_PW		0x0100
-#define GPCT_CONT_PULSE_OUT	0x0200
-#define GPCT_SINGLE_PULSE_OUT	0x0400
-
-/* instructions */
-
-#define INSN_MASK_WRITE		0x8000000
-#define INSN_MASK_READ		0x4000000
-#define INSN_MASK_SPECIAL	0x2000000
-
-#define INSN_READ		(0 | INSN_MASK_READ)
-#define INSN_WRITE		(1 | INSN_MASK_WRITE)
-#define INSN_BITS		(2 | INSN_MASK_READ|INSN_MASK_WRITE)
-#define INSN_CONFIG		(3 | INSN_MASK_READ|INSN_MASK_WRITE)
-#define INSN_GTOD		(4 | INSN_MASK_READ|INSN_MASK_SPECIAL)
-#define INSN_WAIT		(5 | INSN_MASK_WRITE|INSN_MASK_SPECIAL)
-#define INSN_INTTRIG		(6 | INSN_MASK_WRITE|INSN_MASK_SPECIAL)
-
-/* trigger flags */
-/* These flags are used in comedi_trig structures */
-
-#define TRIG_DITHER	0x0002	/* enable dithering */
-#define TRIG_DEGLITCH	0x0004	/* enable deglitching */
-#define TRIG_CONFIG	0x0010	/* perform configuration, not triggering */
-
-/* command flags */
-/* These flags are used in comedi_cmd structures */
-
-#define CMDF_BOGUS		0x00000001	/* do the motions */
-
-/* try to use a real-time interrupt while performing command */
-#define CMDF_PRIORITY		0x00000008
-
-/* wake up on end-of-scan events */
-#define CMDF_WAKE_EOS		0x00000020
-
-#define CMDF_WRITE		0x00000040
-
-#define CMDF_RAWDATA		0x00000080
-
-/* timer rounding definitions */
-#define CMDF_ROUND_MASK		0x00030000
-#define CMDF_ROUND_NEAREST	0x00000000
-#define CMDF_ROUND_DOWN		0x00010000
-#define CMDF_ROUND_UP		0x00020000
-#define CMDF_ROUND_UP_NEXT	0x00030000
-
-#define COMEDI_EV_START		0x00040000
-#define COMEDI_EV_SCAN_BEGIN	0x00080000
-#define COMEDI_EV_CONVERT	0x00100000
-#define COMEDI_EV_SCAN_END	0x00200000
-#define COMEDI_EV_STOP		0x00400000
-
-/* compatibility definitions */
-#define TRIG_BOGUS		CMDF_BOGUS
-#define TRIG_RT			CMDF_PRIORITY
-#define TRIG_WAKE_EOS		CMDF_WAKE_EOS
-#define TRIG_WRITE		CMDF_WRITE
-#define TRIG_ROUND_MASK		CMDF_ROUND_MASK
-#define TRIG_ROUND_NEAREST	CMDF_ROUND_NEAREST
-#define TRIG_ROUND_DOWN		CMDF_ROUND_DOWN
-#define TRIG_ROUND_UP		CMDF_ROUND_UP
-#define TRIG_ROUND_UP_NEXT	CMDF_ROUND_UP_NEXT
-
-/* trigger sources */
-
-#define TRIG_ANY	0xffffffff
-#define TRIG_INVALID	0x00000000
-
-#define TRIG_NONE	0x00000001 /* never trigger */
-#define TRIG_NOW	0x00000002 /* trigger now + N ns */
-#define TRIG_FOLLOW	0x00000004 /* trigger on next lower level trig */
-#define TRIG_TIME	0x00000008 /* trigger at time N ns */
-#define TRIG_TIMER	0x00000010 /* trigger at rate N ns */
-#define TRIG_COUNT	0x00000020 /* trigger when count reaches N */
-#define TRIG_EXT	0x00000040 /* trigger on external signal N */
-#define TRIG_INT	0x00000080 /* trigger on comedi-internal signal N */
-#define TRIG_OTHER	0x00000100 /* driver defined */
-
-/* subdevice flags */
-
-#define SDF_BUSY	0x0001	/* device is busy */
-#define SDF_BUSY_OWNER	0x0002	/* device is busy with your job */
-#define SDF_LOCKED	0x0004	/* subdevice is locked */
-#define SDF_LOCK_OWNER	0x0008	/* you own lock */
-#define SDF_MAXDATA	0x0010	/* maxdata depends on channel */
-#define SDF_FLAGS	0x0020	/* flags depend on channel */
-#define SDF_RANGETYPE	0x0040	/* range type depends on channel */
-#define SDF_MODE0	0x0080	/* can do mode 0 */
-#define SDF_MODE1	0x0100	/* can do mode 1 */
-#define SDF_MODE2	0x0200	/* can do mode 2 */
-#define SDF_MODE3	0x0400	/* can do mode 3 */
-#define SDF_MODE4	0x0800	/* can do mode 4 */
-#define SDF_CMD		0x1000	/* can do commands (deprecated) */
-#define SDF_SOFT_CALIBRATED	0x2000 /* subdevice uses software calibration */
-#define SDF_CMD_WRITE		0x4000 /* can do output commands */
-#define SDF_CMD_READ		0x8000 /* can do input commands */
-
-/* subdevice can be read (e.g. analog input) */
-#define SDF_READABLE	0x00010000
-/* subdevice can be written (e.g. analog output) */
-#define SDF_WRITABLE	0x00020000
-#define SDF_WRITEABLE	SDF_WRITABLE	/* spelling error in API */
-/* subdevice does not have externally visible lines */
-#define SDF_INTERNAL	0x00040000
-#define SDF_GROUND	0x00100000	/* can do aref=ground */
-#define SDF_COMMON	0x00200000	/* can do aref=common */
-#define SDF_DIFF	0x00400000	/* can do aref=diff */
-#define SDF_OTHER	0x00800000	/* can do aref=other */
-#define SDF_DITHER	0x01000000	/* can do dithering */
-#define SDF_DEGLITCH	0x02000000	/* can do deglitching */
-#define SDF_MMAP	0x04000000	/* can do mmap() */
-#define SDF_RUNNING	0x08000000	/* subdevice is acquiring data */
-#define SDF_LSAMPL	0x10000000	/* subdevice uses 32-bit samples */
-#define SDF_PACKED	0x20000000	/* subdevice can do packed DIO */
-/* re recycle these flags for PWM */
-#define SDF_PWM_COUNTER SDF_MODE0	/* PWM can automatically switch off */
-#define SDF_PWM_HBRIDGE SDF_MODE1	/* PWM is signed (H-bridge) */
-
-/* subdevice types */
-
-enum comedi_subdevice_type {
-	COMEDI_SUBD_UNUSED,	/* unused by driver */
-	COMEDI_SUBD_AI,		/* analog input */
-	COMEDI_SUBD_AO,		/* analog output */
-	COMEDI_SUBD_DI,		/* digital input */
-	COMEDI_SUBD_DO,		/* digital output */
-	COMEDI_SUBD_DIO,	/* digital input/output */
-	COMEDI_SUBD_COUNTER,	/* counter */
-	COMEDI_SUBD_TIMER,	/* timer */
-	COMEDI_SUBD_MEMORY,	/* memory, EEPROM, DPRAM */
-	COMEDI_SUBD_CALIB,	/* calibration DACs */
-	COMEDI_SUBD_PROC,	/* processor, DSP */
-	COMEDI_SUBD_SERIAL,	/* serial IO */
-	COMEDI_SUBD_PWM		/* PWM */
-};
-
-/* configuration instructions */
-
-enum configuration_ids {
-	INSN_CONFIG_DIO_INPUT = 0,
-	INSN_CONFIG_DIO_OUTPUT = 1,
-	INSN_CONFIG_DIO_OPENDRAIN = 2,
-	INSN_CONFIG_ANALOG_TRIG = 16,
-/*	INSN_CONFIG_WAVEFORM = 17, */
-/*	INSN_CONFIG_TRIG = 18, */
-/*	INSN_CONFIG_COUNTER = 19, */
-	INSN_CONFIG_ALT_SOURCE = 20,
-	INSN_CONFIG_DIGITAL_TRIG = 21,
-	INSN_CONFIG_BLOCK_SIZE = 22,
-	INSN_CONFIG_TIMER_1 = 23,
-	INSN_CONFIG_FILTER = 24,
-	INSN_CONFIG_CHANGE_NOTIFY = 25,
-
-	INSN_CONFIG_SERIAL_CLOCK = 26,	/*ALPHA*/
-	INSN_CONFIG_BIDIRECTIONAL_DATA = 27,
-	INSN_CONFIG_DIO_QUERY = 28,
-	INSN_CONFIG_PWM_OUTPUT = 29,
-	INSN_CONFIG_GET_PWM_OUTPUT = 30,
-	INSN_CONFIG_ARM = 31,
-	INSN_CONFIG_DISARM = 32,
-	INSN_CONFIG_GET_COUNTER_STATUS = 33,
-	INSN_CONFIG_RESET = 34,
-	/* Use CTR as single pulsegenerator */
-	INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR = 1001,
-	/* Use CTR as pulsetraingenerator */
-	INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR = 1002,
-	/* Use the counter as encoder */
-	INSN_CONFIG_GPCT_QUADRATURE_ENCODER = 1003,
-	INSN_CONFIG_SET_GATE_SRC = 2001,	/* Set gate source */
-	INSN_CONFIG_GET_GATE_SRC = 2002,	/* Get gate source */
-	/* Set master clock source */
-	INSN_CONFIG_SET_CLOCK_SRC = 2003,
-	INSN_CONFIG_GET_CLOCK_SRC = 2004, /* Get master clock source */
-	INSN_CONFIG_SET_OTHER_SRC = 2005, /* Set other source */
-	/* INSN_CONFIG_GET_OTHER_SRC = 2006,*//* Get other source */
-	/* Get size in bytes of subdevice's on-board fifos used during
-	 * streaming input/output */
-	INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE = 2006,
-	INSN_CONFIG_SET_COUNTER_MODE = 4097,
-	/* INSN_CONFIG_8254_SET_MODE is deprecated */
-	INSN_CONFIG_8254_SET_MODE = INSN_CONFIG_SET_COUNTER_MODE,
-	INSN_CONFIG_8254_READ_STATUS = 4098,
-	INSN_CONFIG_SET_ROUTING = 4099,
-	INSN_CONFIG_GET_ROUTING = 4109,
-	/* PWM */
-	INSN_CONFIG_PWM_SET_PERIOD = 5000,	/* sets frequency */
-	INSN_CONFIG_PWM_GET_PERIOD = 5001,	/* gets frequency */
-	INSN_CONFIG_GET_PWM_STATUS = 5002,	/* is it running? */
-	/* sets H bridge: duty cycle and sign bit for a relay at the
-	 * same time */
-	INSN_CONFIG_PWM_SET_H_BRIDGE = 5003,
-	/* gets H bridge data: duty cycle and the sign bit */
-	INSN_CONFIG_PWM_GET_H_BRIDGE = 5004
-};
-
-/*
- * Settings for INSN_CONFIG_DIGITAL_TRIG:
- * data[0] = INSN_CONFIG_DIGITAL_TRIG
- * data[1] = trigger ID
- * data[2] = configuration operation
- * data[3] = configuration parameter 1
- * data[4] = configuration parameter 2
- * data[5] = configuration parameter 3
- *
- * operation                           parameter 1   parameter 2   parameter 3
- * ---------------------------------   -----------   -----------   -----------
- * COMEDI_DIGITAL_TRIG_DISABLE
- * COMEDI_DIGITAL_TRIG_ENABLE_EDGES    left-shift    rising-edges  falling-edges
- * COMEDI_DIGITAL_TRIG_ENABLE_LEVELS   left-shift    high-levels   low-levels
- *
- * COMEDI_DIGITAL_TRIG_DISABLE returns the trigger to its default, inactive,
- * unconfigured state.
- *
- * COMEDI_DIGITAL_TRIG_ENABLE_EDGES sets the rising and/or falling edge inputs
- * that each can fire the trigger.
- *
- * COMEDI_DIGITAL_TRIG_ENABLE_LEVELS sets a combination of high and/or low
- * level inputs that can fire the trigger.
- *
- * "left-shift" is useful if the trigger has more than 32 inputs to specify the
- * first input for this configuration.
- *
- * Some sequences of INSN_CONFIG_DIGITAL_TRIG instructions may have a (partly)
- * accumulative effect, depending on the low-level driver.  This is useful
- * when setting up a trigger that has more than 32 inputs or has a combination
- * of edge and level triggered inputs.
- */
-enum comedi_digital_trig_op {
-	COMEDI_DIGITAL_TRIG_DISABLE = 0,
-	COMEDI_DIGITAL_TRIG_ENABLE_EDGES = 1,
-	COMEDI_DIGITAL_TRIG_ENABLE_LEVELS = 2
-};
-
-enum comedi_io_direction {
-	COMEDI_INPUT = 0,
-	COMEDI_OUTPUT = 1,
-	COMEDI_OPENDRAIN = 2
-};
-
-enum comedi_support_level {
-	COMEDI_UNKNOWN_SUPPORT = 0,
-	COMEDI_SUPPORTED,
-	COMEDI_UNSUPPORTED
-};
-
-/* ioctls */
-
-#define CIO 'd'
-#define COMEDI_DEVCONFIG _IOW(CIO, 0, struct comedi_devconfig)
-#define COMEDI_DEVINFO _IOR(CIO, 1, struct comedi_devinfo)
-#define COMEDI_SUBDINFO _IOR(CIO, 2, struct comedi_subdinfo)
-#define COMEDI_CHANINFO _IOR(CIO, 3, struct comedi_chaninfo)
-#define COMEDI_TRIG _IOWR(CIO, 4, comedi_trig)
-#define COMEDI_LOCK _IO(CIO, 5)
-#define COMEDI_UNLOCK _IO(CIO, 6)
-#define COMEDI_CANCEL _IO(CIO, 7)
-#define COMEDI_RANGEINFO _IOR(CIO, 8, struct comedi_rangeinfo)
-#define COMEDI_CMD _IOR(CIO, 9, struct comedi_cmd)
-#define COMEDI_CMDTEST _IOR(CIO, 10, struct comedi_cmd)
-#define COMEDI_INSNLIST _IOR(CIO, 11, struct comedi_insnlist)
-#define COMEDI_INSN _IOR(CIO, 12, struct comedi_insn)
-#define COMEDI_BUFCONFIG _IOR(CIO, 13, struct comedi_bufconfig)
-#define COMEDI_BUFINFO _IOWR(CIO, 14, struct comedi_bufinfo)
-#define COMEDI_POLL _IO(CIO, 15)
-#define COMEDI_SETRSUBD _IO(CIO, 16)
-#define COMEDI_SETWSUBD _IO(CIO, 17)
-
-/* structures */
-
-struct comedi_trig {
-	unsigned int subdev;	/* subdevice */
-	unsigned int mode;	/* mode */
-	unsigned int flags;
-	unsigned int n_chan;	/* number of channels */
-	unsigned int *chanlist;	/* channel/range list */
-	short *data;		/* data list, size depends on subd flags */
-	unsigned int n;		/* number of scans */
-	unsigned int trigsrc;
-	unsigned int trigvar;
-	unsigned int trigvar1;
-	unsigned int data_len;
-	unsigned int unused[3];
-};
-
-struct comedi_insn {
-	unsigned int insn;
-	unsigned int n;
-	unsigned int __user *data;
-	unsigned int subdev;
-	unsigned int chanspec;
-	unsigned int unused[3];
-};
-
-struct comedi_insnlist {
-	unsigned int n_insns;
-	struct comedi_insn __user *insns;
-};
-
-struct comedi_cmd {
-	unsigned int subdev;
-	unsigned int flags;
-
-	unsigned int start_src;
-	unsigned int start_arg;
-
-	unsigned int scan_begin_src;
-	unsigned int scan_begin_arg;
-
-	unsigned int convert_src;
-	unsigned int convert_arg;
-
-	unsigned int scan_end_src;
-	unsigned int scan_end_arg;
-
-	unsigned int stop_src;
-	unsigned int stop_arg;
-
-	unsigned int *chanlist;	/* channel/range list */
-	unsigned int chanlist_len;
-
-	short __user *data; /* data list, size depends on subd flags */
-	unsigned int data_len;
-};
-
-struct comedi_chaninfo {
-	unsigned int subdev;
-	unsigned int __user *maxdata_list;
-	unsigned int __user *flaglist;
-	unsigned int __user *rangelist;
-	unsigned int unused[4];
-};
-
-struct comedi_rangeinfo {
-	unsigned int range_type;
-	void __user *range_ptr;
-};
-
-struct comedi_krange {
-	int min;	/* fixed point, multiply by 1e-6 */
-	int max;	/* fixed point, multiply by 1e-6 */
-	unsigned int flags;
-};
-
-struct comedi_subdinfo {
-	unsigned int type;
-	unsigned int n_chan;
-	unsigned int subd_flags;
-	unsigned int timer_type;
-	unsigned int len_chanlist;
-	unsigned int maxdata;
-	unsigned int flags;		/* channel flags */
-	unsigned int range_type;	/* lookup in kernel */
-	unsigned int settling_time_0;
-	/* see support_level enum for values */
-	unsigned insn_bits_support;
-	unsigned int unused[8];
-};
-
-struct comedi_devinfo {
-	unsigned int version_code;
-	unsigned int n_subdevs;
-	char driver_name[COMEDI_NAMELEN];
-	char board_name[COMEDI_NAMELEN];
-	int read_subdevice;
-	int write_subdevice;
-	int unused[30];
-};
-
-struct comedi_devconfig {
-	char board_name[COMEDI_NAMELEN];
-	int options[COMEDI_NDEVCONFOPTS];
-};
-
-struct comedi_bufconfig {
-	unsigned int subdevice;
-	unsigned int flags;
-
-	unsigned int maximum_size;
-	unsigned int size;
-
-	unsigned int unused[4];
-};
-
-struct comedi_bufinfo {
-	unsigned int subdevice;
-	unsigned int bytes_read;
-
-	unsigned int buf_write_ptr;
-	unsigned int buf_read_ptr;
-	unsigned int buf_write_count;
-	unsigned int buf_read_count;
-
-	unsigned int bytes_written;
-
-	unsigned int unused[4];
-};
-
-/* range stuff */
-
-#define __RANGE(a, b)	((((a)&0xffff)<<16)|((b)&0xffff))
-
-#define RANGE_OFFSET(a)		(((a)>>16)&0xffff)
-#define RANGE_LENGTH(b)		((b)&0xffff)
-
-#define RF_UNIT(flags)		((flags)&0xff)
-#define RF_EXTERNAL		(1<<8)
-
-#define UNIT_volt		0
-#define UNIT_mA			1
-#define UNIT_none		2
-
-#define COMEDI_MIN_SPEED	((unsigned int)0xffffffff)
-
-/**********************************************************/
-/* everything after this line is ALPHA */
-/**********************************************************/
-
-/*
-  8254 specific configuration.
-
-  It supports two config commands:
-
-  0 ID: INSN_CONFIG_SET_COUNTER_MODE
-  1 8254 Mode
-    I8254_MODE0, I8254_MODE1, ..., I8254_MODE5
-    OR'ed with:
-    I8254_BCD, I8254_BINARY
-
-  0 ID: INSN_CONFIG_8254_READ_STATUS
-  1 <-- Status byte returned here.
-    B7 = Output
-    B6 = NULL Count
-    B5 - B0 Current mode.
-
-*/
-
-enum i8254_mode {
-	I8254_MODE0 = (0 << 1),	/* Interrupt on terminal count */
-	I8254_MODE1 = (1 << 1),	/* Hardware retriggerable one-shot */
-	I8254_MODE2 = (2 << 1),	/* Rate generator */
-	I8254_MODE3 = (3 << 1),	/* Square wave mode */
-	I8254_MODE4 = (4 << 1),	/* Software triggered strobe */
-	I8254_MODE5 = (5 << 1),	/* Hardware triggered strobe
-				 * (retriggerable) */
-	I8254_BCD = 1,		/* use binary-coded decimal instead of binary
-				 * (pretty useless) */
-	I8254_BINARY = 0
-};
-
-#define NI_USUAL_PFI_SELECT(x)	(((x) < 10) ? (0x1 + (x)) : (0xb + (x)))
-#define NI_USUAL_RTSI_SELECT(x)	(((x) < 7) ? (0xb + (x)) : 0x1b)
-
-/* mode bits for NI general-purpose counters, set with
- * INSN_CONFIG_SET_COUNTER_MODE */
-#define NI_GPCT_COUNTING_MODE_SHIFT 16
-#define NI_GPCT_INDEX_PHASE_BITSHIFT 20
-#define NI_GPCT_COUNTING_DIRECTION_SHIFT 24
-enum ni_gpct_mode_bits {
-	NI_GPCT_GATE_ON_BOTH_EDGES_BIT = 0x4,
-	NI_GPCT_EDGE_GATE_MODE_MASK = 0x18,
-	NI_GPCT_EDGE_GATE_STARTS_STOPS_BITS = 0x0,
-	NI_GPCT_EDGE_GATE_STOPS_STARTS_BITS = 0x8,
-	NI_GPCT_EDGE_GATE_STARTS_BITS = 0x10,
-	NI_GPCT_EDGE_GATE_NO_STARTS_NO_STOPS_BITS = 0x18,
-	NI_GPCT_STOP_MODE_MASK = 0x60,
-	NI_GPCT_STOP_ON_GATE_BITS = 0x00,
-	NI_GPCT_STOP_ON_GATE_OR_TC_BITS = 0x20,
-	NI_GPCT_STOP_ON_GATE_OR_SECOND_TC_BITS = 0x40,
-	NI_GPCT_LOAD_B_SELECT_BIT = 0x80,
-	NI_GPCT_OUTPUT_MODE_MASK = 0x300,
-	NI_GPCT_OUTPUT_TC_PULSE_BITS = 0x100,
-	NI_GPCT_OUTPUT_TC_TOGGLE_BITS = 0x200,
-	NI_GPCT_OUTPUT_TC_OR_GATE_TOGGLE_BITS = 0x300,
-	NI_GPCT_HARDWARE_DISARM_MASK = 0xc00,
-	NI_GPCT_NO_HARDWARE_DISARM_BITS = 0x000,
-	NI_GPCT_DISARM_AT_TC_BITS = 0x400,
-	NI_GPCT_DISARM_AT_GATE_BITS = 0x800,
-	NI_GPCT_DISARM_AT_TC_OR_GATE_BITS = 0xc00,
-	NI_GPCT_LOADING_ON_TC_BIT = 0x1000,
-	NI_GPCT_LOADING_ON_GATE_BIT = 0x4000,
-	NI_GPCT_COUNTING_MODE_MASK = 0x7 << NI_GPCT_COUNTING_MODE_SHIFT,
-	NI_GPCT_COUNTING_MODE_NORMAL_BITS =
-		0x0 << NI_GPCT_COUNTING_MODE_SHIFT,
-	NI_GPCT_COUNTING_MODE_QUADRATURE_X1_BITS =
-		0x1 << NI_GPCT_COUNTING_MODE_SHIFT,
-	NI_GPCT_COUNTING_MODE_QUADRATURE_X2_BITS =
-		0x2 << NI_GPCT_COUNTING_MODE_SHIFT,
-	NI_GPCT_COUNTING_MODE_QUADRATURE_X4_BITS =
-		0x3 << NI_GPCT_COUNTING_MODE_SHIFT,
-	NI_GPCT_COUNTING_MODE_TWO_PULSE_BITS =
-		0x4 << NI_GPCT_COUNTING_MODE_SHIFT,
-	NI_GPCT_COUNTING_MODE_SYNC_SOURCE_BITS =
-		0x6 << NI_GPCT_COUNTING_MODE_SHIFT,
-	NI_GPCT_INDEX_PHASE_MASK = 0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-	NI_GPCT_INDEX_PHASE_LOW_A_LOW_B_BITS =
-		0x0 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-	NI_GPCT_INDEX_PHASE_LOW_A_HIGH_B_BITS =
-		0x1 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-	NI_GPCT_INDEX_PHASE_HIGH_A_LOW_B_BITS =
-		0x2 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-	NI_GPCT_INDEX_PHASE_HIGH_A_HIGH_B_BITS =
-		0x3 << NI_GPCT_INDEX_PHASE_BITSHIFT,
-	NI_GPCT_INDEX_ENABLE_BIT = 0x400000,
-	NI_GPCT_COUNTING_DIRECTION_MASK =
-		0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-	NI_GPCT_COUNTING_DIRECTION_DOWN_BITS =
-		0x00 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-	NI_GPCT_COUNTING_DIRECTION_UP_BITS =
-		0x1 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-	NI_GPCT_COUNTING_DIRECTION_HW_UP_DOWN_BITS =
-		0x2 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-	NI_GPCT_COUNTING_DIRECTION_HW_GATE_BITS =
-		0x3 << NI_GPCT_COUNTING_DIRECTION_SHIFT,
-	NI_GPCT_RELOAD_SOURCE_MASK = 0xc000000,
-	NI_GPCT_RELOAD_SOURCE_FIXED_BITS = 0x0,
-	NI_GPCT_RELOAD_SOURCE_SWITCHING_BITS = 0x4000000,
-	NI_GPCT_RELOAD_SOURCE_GATE_SELECT_BITS = 0x8000000,
-	NI_GPCT_OR_GATE_BIT = 0x10000000,
-	NI_GPCT_INVERT_OUTPUT_BIT = 0x20000000
-};
-
-/* Bits for setting a clock source with
- * INSN_CONFIG_SET_CLOCK_SRC when using NI general-purpose counters. */
-enum ni_gpct_clock_source_bits {
-	NI_GPCT_CLOCK_SRC_SELECT_MASK = 0x3f,
-	NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS = 0x0,
-	NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS = 0x1,
-	NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS = 0x2,
-	NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS = 0x3,
-	NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS = 0x4,
-	NI_GPCT_NEXT_TC_CLOCK_SRC_BITS = 0x5,
-	/* NI 660x-specific */
-	NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS = 0x6,
-	NI_GPCT_PXI10_CLOCK_SRC_BITS = 0x7,
-	NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS = 0x8,
-	NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS = 0x9,
-	NI_GPCT_PRESCALE_MODE_CLOCK_SRC_MASK = 0x30000000,
-	NI_GPCT_NO_PRESCALE_CLOCK_SRC_BITS = 0x0,
-	/* divide source by 2 */
-	NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS = 0x10000000,
-	/* divide source by 8 */
-	NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS = 0x20000000,
-	NI_GPCT_INVERT_CLOCK_SRC_BIT = 0x80000000
-};
-
-/* NI 660x-specific */
-#define NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(x)	(0x10 + (x))
-
-#define NI_GPCT_RTSI_CLOCK_SRC_BITS(x)		(0x18 + (x))
-
-/* no pfi on NI 660x */
-#define NI_GPCT_PFI_CLOCK_SRC_BITS(x)		(0x20 + (x))
-
-/* Possibilities for setting a gate source with
-INSN_CONFIG_SET_GATE_SRC when using NI general-purpose counters.
-May be bitwise-or'd with CR_EDGE or CR_INVERT. */
-enum ni_gpct_gate_select {
-	/* m-series gates */
-	NI_GPCT_TIMESTAMP_MUX_GATE_SELECT = 0x0,
-	NI_GPCT_AI_START2_GATE_SELECT = 0x12,
-	NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT = 0x13,
-	NI_GPCT_NEXT_OUT_GATE_SELECT = 0x14,
-	NI_GPCT_AI_START1_GATE_SELECT = 0x1c,
-	NI_GPCT_NEXT_SOURCE_GATE_SELECT = 0x1d,
-	NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT = 0x1e,
-	NI_GPCT_LOGIC_LOW_GATE_SELECT = 0x1f,
-	/* more gates for 660x */
-	NI_GPCT_SOURCE_PIN_i_GATE_SELECT = 0x100,
-	NI_GPCT_GATE_PIN_i_GATE_SELECT = 0x101,
-	/* more gates for 660x "second gate" */
-	NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT = 0x201,
-	NI_GPCT_SELECTED_GATE_GATE_SELECT = 0x21e,
-	/* m-series "second gate" sources are unknown,
-	 * we should add them here with an offset of 0x300 when
-	 * known. */
-	NI_GPCT_DISABLED_GATE_SELECT = 0x8000,
-};
-
-#define NI_GPCT_GATE_PIN_GATE_SELECT(x)		(0x102 + (x))
-#define NI_GPCT_RTSI_GATE_SELECT(x)		NI_USUAL_RTSI_SELECT(x)
-#define NI_GPCT_PFI_GATE_SELECT(x)		NI_USUAL_PFI_SELECT(x)
-#define NI_GPCT_UP_DOWN_PIN_GATE_SELECT(x)	(0x202 + (x))
-
-/* Possibilities for setting a source with
-INSN_CONFIG_SET_OTHER_SRC when using NI general-purpose counters. */
-enum ni_gpct_other_index {
-	NI_GPCT_SOURCE_ENCODER_A,
-	NI_GPCT_SOURCE_ENCODER_B,
-	NI_GPCT_SOURCE_ENCODER_Z
-};
-
-enum ni_gpct_other_select {
-	/* m-series gates */
-	/* Still unknown, probably only need NI_GPCT_PFI_OTHER_SELECT */
-	NI_GPCT_DISABLED_OTHER_SELECT = 0x8000,
-};
-
-#define NI_GPCT_PFI_OTHER_SELECT(x)	NI_USUAL_PFI_SELECT(x)
-
-/* start sources for ni general-purpose counters for use with
-INSN_CONFIG_ARM */
-enum ni_gpct_arm_source {
-	NI_GPCT_ARM_IMMEDIATE = 0x0,
-	NI_GPCT_ARM_PAIRED_IMMEDIATE = 0x1, /* Start both the counter
-					     * and the adjacent paired
-					     * counter simultaneously */
-	/* NI doesn't document bits for selecting hardware arm triggers.
-	 * If the NI_GPCT_ARM_UNKNOWN bit is set, we will pass the least
-	 * significant bits (3 bits for 660x or 5 bits for m-series)
-	 * through to the hardware.  This will at least allow someone to
-	 * figure out what the bits do later. */
-	NI_GPCT_ARM_UNKNOWN = 0x1000,
-};
-
-/* digital filtering options for ni 660x for use with INSN_CONFIG_FILTER. */
-enum ni_gpct_filter_select {
-	NI_GPCT_FILTER_OFF = 0x0,
-	NI_GPCT_FILTER_TIMEBASE_3_SYNC = 0x1,
-	NI_GPCT_FILTER_100x_TIMEBASE_1 = 0x2,
-	NI_GPCT_FILTER_20x_TIMEBASE_1 = 0x3,
-	NI_GPCT_FILTER_10x_TIMEBASE_1 = 0x4,
-	NI_GPCT_FILTER_2x_TIMEBASE_1 = 0x5,
-	NI_GPCT_FILTER_2x_TIMEBASE_3 = 0x6
-};
-
-/* PFI digital filtering options for ni m-series for use with
- * INSN_CONFIG_FILTER. */
-enum ni_pfi_filter_select {
-	NI_PFI_FILTER_OFF = 0x0,
-	NI_PFI_FILTER_125ns = 0x1,
-	NI_PFI_FILTER_6425ns = 0x2,
-	NI_PFI_FILTER_2550us = 0x3
-};
-
-/* master clock sources for ni mio boards and INSN_CONFIG_SET_CLOCK_SRC */
-enum ni_mio_clock_source {
-	NI_MIO_INTERNAL_CLOCK = 0,
-	NI_MIO_RTSI_CLOCK = 1,	/* doesn't work for m-series, use
-				   NI_MIO_PLL_RTSI_CLOCK() */
-	/* the NI_MIO_PLL_* sources are m-series only */
-	NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK = 2,
-	NI_MIO_PLL_PXI10_CLOCK = 3,
-	NI_MIO_PLL_RTSI0_CLOCK = 4
-};
-
-#define NI_MIO_PLL_RTSI_CLOCK(x)	(NI_MIO_PLL_RTSI0_CLOCK + (x))
-
-/* Signals which can be routed to an NI RTSI pin with INSN_CONFIG_SET_ROUTING.
- The numbers assigned are not arbitrary, they correspond to the bits required
- to program the board. */
-enum ni_rtsi_routing {
-	NI_RTSI_OUTPUT_ADR_START1 = 0,
-	NI_RTSI_OUTPUT_ADR_START2 = 1,
-	NI_RTSI_OUTPUT_SCLKG = 2,
-	NI_RTSI_OUTPUT_DACUPDN = 3,
-	NI_RTSI_OUTPUT_DA_START1 = 4,
-	NI_RTSI_OUTPUT_G_SRC0 = 5,
-	NI_RTSI_OUTPUT_G_GATE0 = 6,
-	NI_RTSI_OUTPUT_RGOUT0 = 7,
-	NI_RTSI_OUTPUT_RTSI_BRD_0 = 8,
-	NI_RTSI_OUTPUT_RTSI_OSC = 12	/* pre-m-series always have RTSI
-					 * clock on line 7 */
-};
-
-#define NI_RTSI_OUTPUT_RTSI_BRD(x)	(NI_RTSI_OUTPUT_RTSI_BRD_0 + (x))
-
-/* Signals which can be routed to an NI PFI pin on an m-series board with
- * INSN_CONFIG_SET_ROUTING.  These numbers are also returned by
- * INSN_CONFIG_GET_ROUTING on pre-m-series boards, even though their routing
- * cannot be changed.  The numbers assigned are not arbitrary, they correspond
- * to the bits required to program the board. */
-enum ni_pfi_routing {
-	NI_PFI_OUTPUT_PFI_DEFAULT = 0,
-	NI_PFI_OUTPUT_AI_START1 = 1,
-	NI_PFI_OUTPUT_AI_START2 = 2,
-	NI_PFI_OUTPUT_AI_CONVERT = 3,
-	NI_PFI_OUTPUT_G_SRC1 = 4,
-	NI_PFI_OUTPUT_G_GATE1 = 5,
-	NI_PFI_OUTPUT_AO_UPDATE_N = 6,
-	NI_PFI_OUTPUT_AO_START1 = 7,
-	NI_PFI_OUTPUT_AI_START_PULSE = 8,
-	NI_PFI_OUTPUT_G_SRC0 = 9,
-	NI_PFI_OUTPUT_G_GATE0 = 10,
-	NI_PFI_OUTPUT_EXT_STROBE = 11,
-	NI_PFI_OUTPUT_AI_EXT_MUX_CLK = 12,
-	NI_PFI_OUTPUT_GOUT0 = 13,
-	NI_PFI_OUTPUT_GOUT1 = 14,
-	NI_PFI_OUTPUT_FREQ_OUT = 15,
-	NI_PFI_OUTPUT_PFI_DO = 16,
-	NI_PFI_OUTPUT_I_ATRIG = 17,
-	NI_PFI_OUTPUT_RTSI0 = 18,
-	NI_PFI_OUTPUT_PXI_STAR_TRIGGER_IN = 26,
-	NI_PFI_OUTPUT_SCXI_TRIG1 = 27,
-	NI_PFI_OUTPUT_DIO_CHANGE_DETECT_RTSI = 28,
-	NI_PFI_OUTPUT_CDI_SAMPLE = 29,
-	NI_PFI_OUTPUT_CDO_UPDATE = 30
-};
-
-#define NI_PFI_OUTPUT_RTSI(x)		(NI_PFI_OUTPUT_RTSI0 + (x))
-
-/* Signals which can be routed to output on a NI PFI pin on a 660x board
- with INSN_CONFIG_SET_ROUTING.  The numbers assigned are
- not arbitrary, they correspond to the bits required
- to program the board.  Lines 0 to 7 can only be set to
- NI_660X_PFI_OUTPUT_DIO.  Lines 32 to 39 can only be set to
- NI_660X_PFI_OUTPUT_COUNTER. */
-enum ni_660x_pfi_routing {
-	NI_660X_PFI_OUTPUT_COUNTER = 1,	/* counter */
-	NI_660X_PFI_OUTPUT_DIO = 2,	/* static digital output */
-};
-
-/* NI External Trigger lines.  These values are not arbitrary, but are related
- * to the bits required to program the board (offset by 1 for historical
- * reasons). */
-#define NI_EXT_PFI(x)			(NI_USUAL_PFI_SELECT(x) - 1)
-#define NI_EXT_RTSI(x)			(NI_USUAL_RTSI_SELECT(x) - 1)
-
-/* status bits for INSN_CONFIG_GET_COUNTER_STATUS */
-enum comedi_counter_status_flags {
-	COMEDI_COUNTER_ARMED = 0x1,
-	COMEDI_COUNTER_COUNTING = 0x2,
-	COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
-};
-
-/* Clock sources for CDIO subdevice on NI m-series boards.  Used as the
- * scan_begin_arg for a comedi_command. These sources may also be bitwise-or'd
- * with CR_INVERT to change polarity. */
-enum ni_m_series_cdio_scan_begin_src {
-	NI_CDIO_SCAN_BEGIN_SRC_GROUND = 0,
-	NI_CDIO_SCAN_BEGIN_SRC_AI_START = 18,
-	NI_CDIO_SCAN_BEGIN_SRC_AI_CONVERT = 19,
-	NI_CDIO_SCAN_BEGIN_SRC_PXI_STAR_TRIGGER = 20,
-	NI_CDIO_SCAN_BEGIN_SRC_G0_OUT = 28,
-	NI_CDIO_SCAN_BEGIN_SRC_G1_OUT = 29,
-	NI_CDIO_SCAN_BEGIN_SRC_ANALOG_TRIGGER = 30,
-	NI_CDIO_SCAN_BEGIN_SRC_AO_UPDATE = 31,
-	NI_CDIO_SCAN_BEGIN_SRC_FREQ_OUT = 32,
-	NI_CDIO_SCAN_BEGIN_SRC_DIO_CHANGE_DETECT_IRQ = 33
-};
-
-#define NI_CDIO_SCAN_BEGIN_SRC_PFI(x)	NI_USUAL_PFI_SELECT(x)
-#define NI_CDIO_SCAN_BEGIN_SRC_RTSI(x)	NI_USUAL_RTSI_SELECT(x)
-
-/* scan_begin_src for scan_begin_arg==TRIG_EXT with analog output command on NI
- * boards.  These scan begin sources can also be bitwise-or'd with CR_INVERT to
- * change polarity. */
-#define NI_AO_SCAN_BEGIN_SRC_PFI(x)	NI_USUAL_PFI_SELECT(x)
-#define NI_AO_SCAN_BEGIN_SRC_RTSI(x)	NI_USUAL_RTSI_SELECT(x)
-
-/* Bits for setting a clock source with
- * INSN_CONFIG_SET_CLOCK_SRC when using NI frequency output subdevice. */
-enum ni_freq_out_clock_source_bits {
-	NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC,	/* 10 MHz */
-	NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC	/* 100 KHz */
-};
-
-/* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
- * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
-enum amplc_dio_clock_source {
-	AMPLC_DIO_CLK_CLKN,	/* per channel external clock
-				   input/output pin (pin is only an
-				   input when clock source set to this
-				   value, otherwise it is an output) */
-	AMPLC_DIO_CLK_10MHZ,	/* 10 MHz internal clock */
-	AMPLC_DIO_CLK_1MHZ,	/* 1 MHz internal clock */
-	AMPLC_DIO_CLK_100KHZ,	/* 100 kHz internal clock */
-	AMPLC_DIO_CLK_10KHZ,	/* 10 kHz internal clock */
-	AMPLC_DIO_CLK_1KHZ,	/* 1 kHz internal clock */
-	AMPLC_DIO_CLK_OUTNM1,	/* output of preceding counter channel
-				   (for channel 0, preceding counter
-				   channel is channel 2 on preceding
-				   counter subdevice, for first counter
-				   subdevice, preceding counter
-				   subdevice is the last counter
-				   subdevice) */
-	AMPLC_DIO_CLK_EXT,	/* per chip external input pin */
-	/* the following are "enhanced" clock sources for PCIe models */
-	AMPLC_DIO_CLK_VCC,	/* clock input HIGH */
-	AMPLC_DIO_CLK_GND,	/* clock input LOW */
-	AMPLC_DIO_CLK_PAT_PRESENT, /* "pattern present" signal */
-	AMPLC_DIO_CLK_20MHZ	/* 20 MHz internal clock */
-};
-
-/* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
- * timer subdevice on some Amplicon DIO PCIe boards (amplc_dio200 driver). */
-enum amplc_dio_ts_clock_src {
-	AMPLC_DIO_TS_CLK_1GHZ,	/* 1 ns period with 20 ns granularity */
-	AMPLC_DIO_TS_CLK_1MHZ,	/* 1 us period */
-	AMPLC_DIO_TS_CLK_1KHZ	/* 1 ms period */
-};
-
-/* Values for setting a gate source with INSN_CONFIG_SET_GATE_SRC for
- * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
-enum amplc_dio_gate_source {
-	AMPLC_DIO_GAT_VCC,	/* internal high logic level */
-	AMPLC_DIO_GAT_GND,	/* internal low logic level */
-	AMPLC_DIO_GAT_GATN,	/* per channel external gate input */
-	AMPLC_DIO_GAT_NOUTNM2,	/* negated output of counter channel
-				   minus 2 (for channels 0 or 1,
-				   channel minus 2 is channel 1 or 2 on
-				   the preceding counter subdevice, for
-				   the first counter subdevice the
-				   preceding counter subdevice is the
-				   last counter subdevice) */
-	AMPLC_DIO_GAT_RESERVED4,
-	AMPLC_DIO_GAT_RESERVED5,
-	AMPLC_DIO_GAT_RESERVED6,
-	AMPLC_DIO_GAT_RESERVED7,
-	/* the following are "enhanced" gate sources for PCIe models */
-	AMPLC_DIO_GAT_NGATN = 6, /* negated per channel gate input */
-	AMPLC_DIO_GAT_OUTNM2,	/* non-negated output of counter
-				   channel minus 2 */
-	AMPLC_DIO_GAT_PAT_PRESENT, /* "pattern present" signal */
-	AMPLC_DIO_GAT_PAT_OCCURRED, /* "pattern occurred" latched */
-	AMPLC_DIO_GAT_PAT_GONE,	/* "pattern gone away" latched */
-	AMPLC_DIO_GAT_NPAT_PRESENT, /* negated "pattern present" */
-	AMPLC_DIO_GAT_NPAT_OCCURRED, /* negated "pattern occurred" */
-	AMPLC_DIO_GAT_NPAT_GONE	/* negated "pattern gone away" */
-};
-
-/*
- * Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
- * the counter subdevice on the Kolter Electronic PCI-Counter board
- * (ke_counter driver).
- */
-enum ke_counter_clock_source {
-	KE_CLK_20MHZ,	/* internal 20MHz (default) */
-	KE_CLK_4MHZ,	/* internal 4MHz (option) */
-	KE_CLK_EXT	/* external clock on pin 21 of D-Sub */
-};
-
-#endif /* _COMEDI_H */
diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c
deleted file mode 100644
index 19e7b229d15e..000000000000
--- a/drivers/staging/comedi/comedi_buf.c
+++ /dev/null
@@ -1,550 +0,0 @@
-/*
- * comedi_buf.c
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- * Copyright (C) 2002 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-
-#include "comedidev.h"
-#include "comedi_internal.h"
-
-#ifdef PAGE_KERNEL_NOCACHE
-#define COMEDI_PAGE_PROTECTION		PAGE_KERNEL_NOCACHE
-#else
-#define COMEDI_PAGE_PROTECTION		PAGE_KERNEL
-#endif
-
-static void comedi_buf_map_kref_release(struct kref *kref)
-{
-	struct comedi_buf_map *bm =
-		container_of(kref, struct comedi_buf_map, refcount);
-	struct comedi_buf_page *buf;
-	unsigned int i;
-
-	if (bm->page_list) {
-		for (i = 0; i < bm->n_pages; i++) {
-			buf = &bm->page_list[i];
-			clear_bit(PG_reserved,
-				  &(virt_to_page(buf->virt_addr)->flags));
-			if (bm->dma_dir != DMA_NONE) {
-#ifdef CONFIG_HAS_DMA
-				dma_free_coherent(bm->dma_hw_dev,
-						  PAGE_SIZE,
-						  buf->virt_addr,
-						  buf->dma_addr);
-#endif
-			} else {
-				free_page((unsigned long)buf->virt_addr);
-			}
-		}
-		vfree(bm->page_list);
-	}
-	if (bm->dma_dir != DMA_NONE)
-		put_device(bm->dma_hw_dev);
-	kfree(bm);
-}
-
-static void __comedi_buf_free(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	struct comedi_buf_map *bm;
-	unsigned long flags;
-
-	if (async->prealloc_buf) {
-		vunmap(async->prealloc_buf);
-		async->prealloc_buf = NULL;
-		async->prealloc_bufsz = 0;
-	}
-
-	spin_lock_irqsave(&s->spin_lock, flags);
-	bm = async->buf_map;
-	async->buf_map = NULL;
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-	comedi_buf_map_put(bm);
-}
-
-static void __comedi_buf_alloc(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       unsigned n_pages)
-{
-	struct comedi_async *async = s->async;
-	struct page **pages = NULL;
-	struct comedi_buf_map *bm;
-	struct comedi_buf_page *buf;
-	unsigned long flags;
-	unsigned i;
-
-	if (!IS_ENABLED(CONFIG_HAS_DMA) && s->async_dma_dir != DMA_NONE) {
-		dev_err(dev->class_dev,
-			"dma buffer allocation not supported\n");
-		return;
-	}
-
-	bm = kzalloc(sizeof(*async->buf_map), GFP_KERNEL);
-	if (!bm)
-		return;
-
-	kref_init(&bm->refcount);
-	spin_lock_irqsave(&s->spin_lock, flags);
-	async->buf_map = bm;
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-	bm->dma_dir = s->async_dma_dir;
-	if (bm->dma_dir != DMA_NONE)
-		/* Need ref to hardware device to free buffer later. */
-		bm->dma_hw_dev = get_device(dev->hw_dev);
-
-	bm->page_list = vzalloc(sizeof(*buf) * n_pages);
-	if (bm->page_list)
-		pages = vmalloc(sizeof(struct page *) * n_pages);
-
-	if (!pages)
-		return;
-
-	for (i = 0; i < n_pages; i++) {
-		buf = &bm->page_list[i];
-		if (bm->dma_dir != DMA_NONE)
-#ifdef CONFIG_HAS_DMA
-			buf->virt_addr = dma_alloc_coherent(bm->dma_hw_dev,
-							    PAGE_SIZE,
-							    &buf->dma_addr,
-							    GFP_KERNEL |
-							    __GFP_COMP);
-#else
-			break;
-#endif
-		else
-			buf->virt_addr = (void *)get_zeroed_page(GFP_KERNEL);
-		if (!buf->virt_addr)
-			break;
-
-		set_bit(PG_reserved, &(virt_to_page(buf->virt_addr)->flags));
-
-		pages[i] = virt_to_page(buf->virt_addr);
-	}
-	spin_lock_irqsave(&s->spin_lock, flags);
-	bm->n_pages = i;
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-
-	/* vmap the prealloc_buf if all the pages were allocated */
-	if (i == n_pages)
-		async->prealloc_buf = vmap(pages, n_pages, VM_MAP,
-					   COMEDI_PAGE_PROTECTION);
-
-	vfree(pages);
-}
-
-void comedi_buf_map_get(struct comedi_buf_map *bm)
-{
-	if (bm)
-		kref_get(&bm->refcount);
-}
-
-int comedi_buf_map_put(struct comedi_buf_map *bm)
-{
-	if (bm)
-		return kref_put(&bm->refcount, comedi_buf_map_kref_release);
-	return 1;
-}
-
-/* returns s->async->buf_map and increments its kref refcount */
-struct comedi_buf_map *
-comedi_buf_map_from_subdev_get(struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	struct comedi_buf_map *bm = NULL;
-	unsigned long flags;
-
-	if (!async)
-		return NULL;
-
-	spin_lock_irqsave(&s->spin_lock, flags);
-	bm = async->buf_map;
-	/* only want it if buffer pages allocated */
-	if (bm && bm->n_pages)
-		comedi_buf_map_get(bm);
-	else
-		bm = NULL;
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-
-	return bm;
-}
-
-bool comedi_buf_is_mmapped(struct comedi_subdevice *s)
-{
-	struct comedi_buf_map *bm = s->async->buf_map;
-
-	return bm && (atomic_read(&bm->refcount.refcount) > 1);
-}
-
-int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
-		     unsigned long new_size)
-{
-	struct comedi_async *async = s->async;
-
-	/* Round up new_size to multiple of PAGE_SIZE */
-	new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK;
-
-	/* if no change is required, do nothing */
-	if (async->prealloc_buf && async->prealloc_bufsz == new_size)
-		return 0;
-
-	/* deallocate old buffer */
-	__comedi_buf_free(dev, s);
-
-	/* allocate new buffer */
-	if (new_size) {
-		unsigned n_pages = new_size >> PAGE_SHIFT;
-
-		__comedi_buf_alloc(dev, s, n_pages);
-
-		if (!async->prealloc_buf) {
-			/* allocation failed */
-			__comedi_buf_free(dev, s);
-			return -ENOMEM;
-		}
-	}
-	async->prealloc_bufsz = new_size;
-
-	return 0;
-}
-
-void comedi_buf_reset(struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-
-	async->buf_write_alloc_count = 0;
-	async->buf_write_count = 0;
-	async->buf_read_alloc_count = 0;
-	async->buf_read_count = 0;
-
-	async->buf_write_ptr = 0;
-	async->buf_read_ptr = 0;
-
-	async->cur_chan = 0;
-	async->scans_done = 0;
-	async->scan_progress = 0;
-	async->munge_chan = 0;
-	async->munge_count = 0;
-	async->munge_ptr = 0;
-
-	async->events = 0;
-}
-
-static unsigned int comedi_buf_write_n_available(struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	unsigned int free_end = async->buf_read_count + async->prealloc_bufsz;
-
-	return free_end - async->buf_write_alloc_count;
-}
-
-/* allocates chunk for the writer from free buffer space */
-unsigned int comedi_buf_write_alloc(struct comedi_subdevice *s,
-				    unsigned int nbytes)
-{
-	struct comedi_async *async = s->async;
-	unsigned int available = comedi_buf_write_n_available(s);
-
-	if (nbytes > available)
-		nbytes = available;
-
-	async->buf_write_alloc_count += nbytes;
-
-	/*
-	 * ensure the async buffer 'counts' are read and updated
-	 * before we write data to the write-alloc'ed buffer space
-	 */
-	smp_mb();
-
-	return nbytes;
-}
-EXPORT_SYMBOL_GPL(comedi_buf_write_alloc);
-
-/*
- * munging is applied to data by core as it passes between user
- * and kernel space
- */
-static unsigned int comedi_buf_munge(struct comedi_subdevice *s,
-				     unsigned int num_bytes)
-{
-	struct comedi_async *async = s->async;
-	unsigned int count = 0;
-	const unsigned num_sample_bytes = comedi_bytes_per_sample(s);
-
-	if (!s->munge || (async->cmd.flags & CMDF_RAWDATA)) {
-		async->munge_count += num_bytes;
-		count = num_bytes;
-	} else {
-		/* don't munge partial samples */
-		num_bytes -= num_bytes % num_sample_bytes;
-		while (count < num_bytes) {
-			int block_size = num_bytes - count;
-			unsigned int buf_end;
-
-			buf_end = async->prealloc_bufsz - async->munge_ptr;
-			if (block_size > buf_end)
-				block_size = buf_end;
-
-			s->munge(s->device, s,
-				 async->prealloc_buf + async->munge_ptr,
-				 block_size, async->munge_chan);
-
-			/*
-			 * ensure data is munged in buffer before the
-			 * async buffer munge_count is incremented
-			 */
-			smp_wmb();
-
-			async->munge_chan += block_size / num_sample_bytes;
-			async->munge_chan %= async->cmd.chanlist_len;
-			async->munge_count += block_size;
-			async->munge_ptr += block_size;
-			async->munge_ptr %= async->prealloc_bufsz;
-			count += block_size;
-		}
-	}
-
-	return count;
-}
-
-unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-
-	return async->buf_write_alloc_count - async->buf_write_count;
-}
-
-/* transfers a chunk from writer to filled buffer space */
-unsigned int comedi_buf_write_free(struct comedi_subdevice *s,
-				   unsigned int nbytes)
-{
-	struct comedi_async *async = s->async;
-	unsigned int allocated = comedi_buf_write_n_allocated(s);
-
-	if (nbytes > allocated)
-		nbytes = allocated;
-
-	async->buf_write_count += nbytes;
-	async->buf_write_ptr += nbytes;
-	comedi_buf_munge(s, async->buf_write_count - async->munge_count);
-	if (async->buf_write_ptr >= async->prealloc_bufsz)
-		async->buf_write_ptr %= async->prealloc_bufsz;
-
-	return nbytes;
-}
-EXPORT_SYMBOL_GPL(comedi_buf_write_free);
-
-unsigned int comedi_buf_read_n_available(struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	unsigned num_bytes;
-
-	if (!async)
-		return 0;
-
-	num_bytes = async->munge_count - async->buf_read_count;
-
-	/*
-	 * ensure the async buffer 'counts' are read before we
-	 * attempt to read data from the buffer
-	 */
-	smp_rmb();
-
-	return num_bytes;
-}
-EXPORT_SYMBOL_GPL(comedi_buf_read_n_available);
-
-/* allocates a chunk for the reader from filled (and munged) buffer space */
-unsigned int comedi_buf_read_alloc(struct comedi_subdevice *s,
-				   unsigned int nbytes)
-{
-	struct comedi_async *async = s->async;
-	unsigned int available;
-
-	available = async->munge_count - async->buf_read_alloc_count;
-	if (nbytes > available)
-		nbytes = available;
-
-	async->buf_read_alloc_count += nbytes;
-
-	/*
-	 * ensure the async buffer 'counts' are read before we
-	 * attempt to read data from the read-alloc'ed buffer space
-	 */
-	smp_rmb();
-
-	return nbytes;
-}
-EXPORT_SYMBOL_GPL(comedi_buf_read_alloc);
-
-static unsigned int comedi_buf_read_n_allocated(struct comedi_async *async)
-{
-	return async->buf_read_alloc_count - async->buf_read_count;
-}
-
-/* transfers control of a chunk from reader to free buffer space */
-unsigned int comedi_buf_read_free(struct comedi_subdevice *s,
-				  unsigned int nbytes)
-{
-	struct comedi_async *async = s->async;
-	unsigned int allocated;
-
-	/*
-	 * ensure data has been read out of buffer before
-	 * the async read count is incremented
-	 */
-	smp_mb();
-
-	allocated = comedi_buf_read_n_allocated(async);
-	if (nbytes > allocated)
-		nbytes = allocated;
-
-	async->buf_read_count += nbytes;
-	async->buf_read_ptr += nbytes;
-	async->buf_read_ptr %= async->prealloc_bufsz;
-	return nbytes;
-}
-EXPORT_SYMBOL_GPL(comedi_buf_read_free);
-
-static void comedi_buf_memcpy_to(struct comedi_subdevice *s,
-				 const void *data, unsigned int num_bytes)
-{
-	struct comedi_async *async = s->async;
-	unsigned int write_ptr = async->buf_write_ptr;
-
-	while (num_bytes) {
-		unsigned int block_size;
-
-		if (write_ptr + num_bytes > async->prealloc_bufsz)
-			block_size = async->prealloc_bufsz - write_ptr;
-		else
-			block_size = num_bytes;
-
-		memcpy(async->prealloc_buf + write_ptr, data, block_size);
-
-		data += block_size;
-		num_bytes -= block_size;
-
-		write_ptr = 0;
-	}
-}
-
-static void comedi_buf_memcpy_from(struct comedi_subdevice *s,
-				   void *dest, unsigned int nbytes)
-{
-	void *src;
-	struct comedi_async *async = s->async;
-	unsigned int read_ptr = async->buf_read_ptr;
-
-	while (nbytes) {
-		unsigned int block_size;
-
-		src = async->prealloc_buf + read_ptr;
-
-		if (nbytes >= async->prealloc_bufsz - read_ptr)
-			block_size = async->prealloc_bufsz - read_ptr;
-		else
-			block_size = nbytes;
-
-		memcpy(dest, src, block_size);
-		nbytes -= block_size;
-		dest += block_size;
-		read_ptr = 0;
-	}
-}
-
-/**
- * comedi_buf_write_samples - write sample data to comedi buffer
- * @s: comedi_subdevice struct
- * @data: samples
- * @nsamples: number of samples
- *
- * Writes nsamples to the comedi buffer associated with the subdevice, marks
- * it as written and updates the acquisition scan progress.
- *
- * Returns the amount of data written in bytes.
- */
-unsigned int comedi_buf_write_samples(struct comedi_subdevice *s,
-				      const void *data, unsigned int nsamples)
-{
-	unsigned int max_samples;
-	unsigned int nbytes;
-
-	/*
-	 * Make sure there is enough room in the buffer for all the samples.
-	 * If not, clamp the nsamples to the number that will fit, flag the
-	 * buffer overrun and add the samples that fit.
-	 */
-	max_samples = comedi_bytes_to_samples(s,
-					      comedi_buf_write_n_available(s));
-	if (nsamples > max_samples) {
-		dev_warn(s->device->class_dev, "buffer overrun\n");
-		s->async->events |= COMEDI_CB_OVERFLOW;
-		nsamples = max_samples;
-	}
-
-	if (nsamples == 0)
-		return 0;
-
-	nbytes = comedi_buf_write_alloc(s,
-					comedi_samples_to_bytes(s, nsamples));
-	comedi_buf_memcpy_to(s, data, nbytes);
-	comedi_buf_write_free(s, nbytes);
-	comedi_inc_scan_progress(s, nbytes);
-	s->async->events |= COMEDI_CB_BLOCK;
-
-	return nbytes;
-}
-EXPORT_SYMBOL_GPL(comedi_buf_write_samples);
-
-/**
- * comedi_buf_read_samples - read sample data from comedi buffer
- * @s: comedi_subdevice struct
- * @data: destination
- * @nsamples: maximum number of samples to read
- *
- * Reads up to nsamples from the comedi buffer associated with the subdevice,
- * marks it as read and updates the acquisition scan progress.
- *
- * Returns the amount of data read in bytes.
- */
-unsigned int comedi_buf_read_samples(struct comedi_subdevice *s,
-				     void *data, unsigned int nsamples)
-{
-	unsigned int max_samples;
-	unsigned int nbytes;
-
-	/* clamp nsamples to the number of full samples available */
-	max_samples = comedi_bytes_to_samples(s,
-					      comedi_buf_read_n_available(s));
-	if (nsamples > max_samples)
-		nsamples = max_samples;
-
-	if (nsamples == 0)
-		return 0;
-
-	nbytes = comedi_buf_read_alloc(s,
-				       comedi_samples_to_bytes(s, nsamples));
-	comedi_buf_memcpy_from(s, data, nbytes);
-	comedi_buf_read_free(s, nbytes);
-	comedi_inc_scan_progress(s, nbytes);
-	s->async->events |= COMEDI_CB_BLOCK;
-
-	return nbytes;
-}
-EXPORT_SYMBOL_GPL(comedi_buf_read_samples);
diff --git a/drivers/staging/comedi/comedi_compat32.c b/drivers/staging/comedi/comedi_compat32.c
deleted file mode 100644
index f356386d833a..000000000000
--- a/drivers/staging/comedi/comedi_compat32.c
+++ /dev/null
@@ -1,464 +0,0 @@
-/*
- * comedi/comedi_compat32.c
- * 32-bit ioctl compatibility for 64-bit comedi kernel module.
- *
- * Author: Ian Abbott, MEV Ltd. <abbotti@mev.co.uk>
- * Copyright (C) 2007 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2007 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/uaccess.h>
-#include <linux/compat.h>
-#include <linux/fs.h>
-#include "comedi.h"
-#include "comedi_compat32.h"
-
-#define COMEDI32_CHANINFO _IOR(CIO, 3, struct comedi32_chaninfo_struct)
-#define COMEDI32_RANGEINFO _IOR(CIO, 8, struct comedi32_rangeinfo_struct)
-/*
- * N.B. COMEDI32_CMD and COMEDI_CMD ought to use _IOWR, not _IOR.
- * It's too late to change it now, but it only affects the command number.
- */
-#define COMEDI32_CMD _IOR(CIO, 9, struct comedi32_cmd_struct)
-/*
- * N.B. COMEDI32_CMDTEST and COMEDI_CMDTEST ought to use _IOWR, not _IOR.
- * It's too late to change it now, but it only affects the command number.
- */
-#define COMEDI32_CMDTEST _IOR(CIO, 10, struct comedi32_cmd_struct)
-#define COMEDI32_INSNLIST _IOR(CIO, 11, struct comedi32_insnlist_struct)
-#define COMEDI32_INSN _IOR(CIO, 12, struct comedi32_insn_struct)
-
-struct comedi32_chaninfo_struct {
-	unsigned int subdev;
-	compat_uptr_t maxdata_list;	/* 32-bit 'unsigned int *' */
-	compat_uptr_t flaglist;		/* 32-bit 'unsigned int *' */
-	compat_uptr_t rangelist;	/* 32-bit 'unsigned int *' */
-	unsigned int unused[4];
-};
-
-struct comedi32_rangeinfo_struct {
-	unsigned int range_type;
-	compat_uptr_t range_ptr;	/* 32-bit 'void *' */
-};
-
-struct comedi32_cmd_struct {
-	unsigned int subdev;
-	unsigned int flags;
-	unsigned int start_src;
-	unsigned int start_arg;
-	unsigned int scan_begin_src;
-	unsigned int scan_begin_arg;
-	unsigned int convert_src;
-	unsigned int convert_arg;
-	unsigned int scan_end_src;
-	unsigned int scan_end_arg;
-	unsigned int stop_src;
-	unsigned int stop_arg;
-	compat_uptr_t chanlist;		/* 32-bit 'unsigned int *' */
-	unsigned int chanlist_len;
-	compat_uptr_t data;		/* 32-bit 'short *' */
-	unsigned int data_len;
-};
-
-struct comedi32_insn_struct {
-	unsigned int insn;
-	unsigned int n;
-	compat_uptr_t data;		/* 32-bit 'unsigned int *' */
-	unsigned int subdev;
-	unsigned int chanspec;
-	unsigned int unused[3];
-};
-
-struct comedi32_insnlist_struct {
-	unsigned int n_insns;
-	compat_uptr_t insns;		/* 32-bit 'struct comedi_insn *' */
-};
-
-/* Handle translated ioctl. */
-static int translated_ioctl(struct file *file, unsigned int cmd,
-			    unsigned long arg)
-{
-	if (file->f_op->unlocked_ioctl)
-		return file->f_op->unlocked_ioctl(file, cmd, arg);
-
-	return -ENOTTY;
-}
-
-/* Handle 32-bit COMEDI_CHANINFO ioctl. */
-static int compat_chaninfo(struct file *file, unsigned long arg)
-{
-	struct comedi_chaninfo __user *chaninfo;
-	struct comedi32_chaninfo_struct __user *chaninfo32;
-	int err;
-	union {
-		unsigned int uint;
-		compat_uptr_t uptr;
-	} temp;
-
-	chaninfo32 = compat_ptr(arg);
-	chaninfo = compat_alloc_user_space(sizeof(*chaninfo));
-
-	/* Copy chaninfo structure.  Ignore unused members. */
-	if (!access_ok(VERIFY_READ, chaninfo32, sizeof(*chaninfo32)) ||
-	    !access_ok(VERIFY_WRITE, chaninfo, sizeof(*chaninfo)))
-		return -EFAULT;
-
-	err = 0;
-	err |= __get_user(temp.uint, &chaninfo32->subdev);
-	err |= __put_user(temp.uint, &chaninfo->subdev);
-	err |= __get_user(temp.uptr, &chaninfo32->maxdata_list);
-	err |= __put_user(compat_ptr(temp.uptr), &chaninfo->maxdata_list);
-	err |= __get_user(temp.uptr, &chaninfo32->flaglist);
-	err |= __put_user(compat_ptr(temp.uptr), &chaninfo->flaglist);
-	err |= __get_user(temp.uptr, &chaninfo32->rangelist);
-	err |= __put_user(compat_ptr(temp.uptr), &chaninfo->rangelist);
-	if (err)
-		return -EFAULT;
-
-	return translated_ioctl(file, COMEDI_CHANINFO, (unsigned long)chaninfo);
-}
-
-/* Handle 32-bit COMEDI_RANGEINFO ioctl. */
-static int compat_rangeinfo(struct file *file, unsigned long arg)
-{
-	struct comedi_rangeinfo __user *rangeinfo;
-	struct comedi32_rangeinfo_struct __user *rangeinfo32;
-	int err;
-	union {
-		unsigned int uint;
-		compat_uptr_t uptr;
-	} temp;
-
-	rangeinfo32 = compat_ptr(arg);
-	rangeinfo = compat_alloc_user_space(sizeof(*rangeinfo));
-
-	/* Copy rangeinfo structure. */
-	if (!access_ok(VERIFY_READ, rangeinfo32, sizeof(*rangeinfo32)) ||
-	    !access_ok(VERIFY_WRITE, rangeinfo, sizeof(*rangeinfo)))
-		return -EFAULT;
-
-	err = 0;
-	err |= __get_user(temp.uint, &rangeinfo32->range_type);
-	err |= __put_user(temp.uint, &rangeinfo->range_type);
-	err |= __get_user(temp.uptr, &rangeinfo32->range_ptr);
-	err |= __put_user(compat_ptr(temp.uptr), &rangeinfo->range_ptr);
-	if (err)
-		return -EFAULT;
-
-	return translated_ioctl(file, COMEDI_RANGEINFO,
-				(unsigned long)rangeinfo);
-}
-
-/* Copy 32-bit cmd structure to native cmd structure. */
-static int get_compat_cmd(struct comedi_cmd __user *cmd,
-			  struct comedi32_cmd_struct __user *cmd32)
-{
-	int err;
-	union {
-		unsigned int uint;
-		compat_uptr_t uptr;
-	} temp;
-
-	/* Copy cmd structure. */
-	if (!access_ok(VERIFY_READ, cmd32, sizeof(*cmd32)) ||
-	    !access_ok(VERIFY_WRITE, cmd, sizeof(*cmd)))
-		return -EFAULT;
-
-	err = 0;
-	err |= __get_user(temp.uint, &cmd32->subdev);
-	err |= __put_user(temp.uint, &cmd->subdev);
-	err |= __get_user(temp.uint, &cmd32->flags);
-	err |= __put_user(temp.uint, &cmd->flags);
-	err |= __get_user(temp.uint, &cmd32->start_src);
-	err |= __put_user(temp.uint, &cmd->start_src);
-	err |= __get_user(temp.uint, &cmd32->start_arg);
-	err |= __put_user(temp.uint, &cmd->start_arg);
-	err |= __get_user(temp.uint, &cmd32->scan_begin_src);
-	err |= __put_user(temp.uint, &cmd->scan_begin_src);
-	err |= __get_user(temp.uint, &cmd32->scan_begin_arg);
-	err |= __put_user(temp.uint, &cmd->scan_begin_arg);
-	err |= __get_user(temp.uint, &cmd32->convert_src);
-	err |= __put_user(temp.uint, &cmd->convert_src);
-	err |= __get_user(temp.uint, &cmd32->convert_arg);
-	err |= __put_user(temp.uint, &cmd->convert_arg);
-	err |= __get_user(temp.uint, &cmd32->scan_end_src);
-	err |= __put_user(temp.uint, &cmd->scan_end_src);
-	err |= __get_user(temp.uint, &cmd32->scan_end_arg);
-	err |= __put_user(temp.uint, &cmd->scan_end_arg);
-	err |= __get_user(temp.uint, &cmd32->stop_src);
-	err |= __put_user(temp.uint, &cmd->stop_src);
-	err |= __get_user(temp.uint, &cmd32->stop_arg);
-	err |= __put_user(temp.uint, &cmd->stop_arg);
-	err |= __get_user(temp.uptr, &cmd32->chanlist);
-	err |= __put_user((unsigned int __force *)compat_ptr(temp.uptr),
-			&cmd->chanlist);
-	err |= __get_user(temp.uint, &cmd32->chanlist_len);
-	err |= __put_user(temp.uint, &cmd->chanlist_len);
-	err |= __get_user(temp.uptr, &cmd32->data);
-	err |= __put_user(compat_ptr(temp.uptr), &cmd->data);
-	err |= __get_user(temp.uint, &cmd32->data_len);
-	err |= __put_user(temp.uint, &cmd->data_len);
-	return err ? -EFAULT : 0;
-}
-
-/* Copy native cmd structure to 32-bit cmd structure. */
-static int put_compat_cmd(struct comedi32_cmd_struct __user *cmd32,
-			  struct comedi_cmd __user *cmd)
-{
-	int err;
-	unsigned int temp;
-
-	/*
-	 * Copy back most of cmd structure.
-	 *
-	 * Assume the pointer values are already valid.
-	 * (Could use ptr_to_compat() to set them.)
-	 */
-	if (!access_ok(VERIFY_READ, cmd, sizeof(*cmd)) ||
-	    !access_ok(VERIFY_WRITE, cmd32, sizeof(*cmd32)))
-		return -EFAULT;
-
-	err = 0;
-	err |= __get_user(temp, &cmd->subdev);
-	err |= __put_user(temp, &cmd32->subdev);
-	err |= __get_user(temp, &cmd->flags);
-	err |= __put_user(temp, &cmd32->flags);
-	err |= __get_user(temp, &cmd->start_src);
-	err |= __put_user(temp, &cmd32->start_src);
-	err |= __get_user(temp, &cmd->start_arg);
-	err |= __put_user(temp, &cmd32->start_arg);
-	err |= __get_user(temp, &cmd->scan_begin_src);
-	err |= __put_user(temp, &cmd32->scan_begin_src);
-	err |= __get_user(temp, &cmd->scan_begin_arg);
-	err |= __put_user(temp, &cmd32->scan_begin_arg);
-	err |= __get_user(temp, &cmd->convert_src);
-	err |= __put_user(temp, &cmd32->convert_src);
-	err |= __get_user(temp, &cmd->convert_arg);
-	err |= __put_user(temp, &cmd32->convert_arg);
-	err |= __get_user(temp, &cmd->scan_end_src);
-	err |= __put_user(temp, &cmd32->scan_end_src);
-	err |= __get_user(temp, &cmd->scan_end_arg);
-	err |= __put_user(temp, &cmd32->scan_end_arg);
-	err |= __get_user(temp, &cmd->stop_src);
-	err |= __put_user(temp, &cmd32->stop_src);
-	err |= __get_user(temp, &cmd->stop_arg);
-	err |= __put_user(temp, &cmd32->stop_arg);
-	/* Assume chanlist pointer is unchanged. */
-	err |= __get_user(temp, &cmd->chanlist_len);
-	err |= __put_user(temp, &cmd32->chanlist_len);
-	/* Assume data pointer is unchanged. */
-	err |= __get_user(temp, &cmd->data_len);
-	err |= __put_user(temp, &cmd32->data_len);
-	return err ? -EFAULT : 0;
-}
-
-/* Handle 32-bit COMEDI_CMD ioctl. */
-static int compat_cmd(struct file *file, unsigned long arg)
-{
-	struct comedi_cmd __user *cmd;
-	struct comedi32_cmd_struct __user *cmd32;
-	int rc, err;
-
-	cmd32 = compat_ptr(arg);
-	cmd = compat_alloc_user_space(sizeof(*cmd));
-
-	rc = get_compat_cmd(cmd, cmd32);
-	if (rc)
-		return rc;
-
-	rc = translated_ioctl(file, COMEDI_CMD, (unsigned long)cmd);
-	if (rc == -EAGAIN) {
-		/* Special case: copy cmd back to user. */
-		err = put_compat_cmd(cmd32, cmd);
-		if (err)
-			rc = err;
-	}
-
-	return rc;
-}
-
-/* Handle 32-bit COMEDI_CMDTEST ioctl. */
-static int compat_cmdtest(struct file *file, unsigned long arg)
-{
-	struct comedi_cmd __user *cmd;
-	struct comedi32_cmd_struct __user *cmd32;
-	int rc, err;
-
-	cmd32 = compat_ptr(arg);
-	cmd = compat_alloc_user_space(sizeof(*cmd));
-
-	rc = get_compat_cmd(cmd, cmd32);
-	if (rc)
-		return rc;
-
-	rc = translated_ioctl(file, COMEDI_CMDTEST, (unsigned long)cmd);
-	if (rc < 0)
-		return rc;
-
-	err = put_compat_cmd(cmd32, cmd);
-	if (err)
-		rc = err;
-
-	return rc;
-}
-
-/* Copy 32-bit insn structure to native insn structure. */
-static int get_compat_insn(struct comedi_insn __user *insn,
-			   struct comedi32_insn_struct __user *insn32)
-{
-	int err;
-	union {
-		unsigned int uint;
-		compat_uptr_t uptr;
-	} temp;
-
-	/* Copy insn structure.  Ignore the unused members. */
-	err = 0;
-	if (!access_ok(VERIFY_READ, insn32, sizeof(*insn32)) ||
-	    !access_ok(VERIFY_WRITE, insn, sizeof(*insn)))
-		return -EFAULT;
-
-	err |= __get_user(temp.uint, &insn32->insn);
-	err |= __put_user(temp.uint, &insn->insn);
-	err |= __get_user(temp.uint, &insn32->n);
-	err |= __put_user(temp.uint, &insn->n);
-	err |= __get_user(temp.uptr, &insn32->data);
-	err |= __put_user(compat_ptr(temp.uptr), &insn->data);
-	err |= __get_user(temp.uint, &insn32->subdev);
-	err |= __put_user(temp.uint, &insn->subdev);
-	err |= __get_user(temp.uint, &insn32->chanspec);
-	err |= __put_user(temp.uint, &insn->chanspec);
-	return err ? -EFAULT : 0;
-}
-
-/* Handle 32-bit COMEDI_INSNLIST ioctl. */
-static int compat_insnlist(struct file *file, unsigned long arg)
-{
-	struct combined_insnlist {
-		struct comedi_insnlist insnlist;
-		struct comedi_insn insn[1];
-	} __user *s;
-	struct comedi32_insnlist_struct __user *insnlist32;
-	struct comedi32_insn_struct __user *insn32;
-	compat_uptr_t uptr;
-	unsigned int n_insns, n;
-	int err, rc;
-
-	insnlist32 = compat_ptr(arg);
-
-	/* Get 32-bit insnlist structure.  */
-	if (!access_ok(VERIFY_READ, insnlist32, sizeof(*insnlist32)))
-		return -EFAULT;
-
-	err = 0;
-	err |= __get_user(n_insns, &insnlist32->n_insns);
-	err |= __get_user(uptr, &insnlist32->insns);
-	insn32 = compat_ptr(uptr);
-	if (err)
-		return -EFAULT;
-
-	/* Allocate user memory to copy insnlist and insns into. */
-	s = compat_alloc_user_space(offsetof(struct combined_insnlist,
-					     insn[n_insns]));
-
-	/* Set native insnlist structure. */
-	if (!access_ok(VERIFY_WRITE, &s->insnlist, sizeof(s->insnlist)))
-		return -EFAULT;
-
-	err |= __put_user(n_insns, &s->insnlist.n_insns);
-	err |= __put_user(&s->insn[0], &s->insnlist.insns);
-	if (err)
-		return -EFAULT;
-
-	/* Copy insn structures. */
-	for (n = 0; n < n_insns; n++) {
-		rc = get_compat_insn(&s->insn[n], &insn32[n]);
-		if (rc)
-			return rc;
-	}
-
-	return translated_ioctl(file, COMEDI_INSNLIST,
-				(unsigned long)&s->insnlist);
-}
-
-/* Handle 32-bit COMEDI_INSN ioctl. */
-static int compat_insn(struct file *file, unsigned long arg)
-{
-	struct comedi_insn __user *insn;
-	struct comedi32_insn_struct __user *insn32;
-	int rc;
-
-	insn32 = compat_ptr(arg);
-	insn = compat_alloc_user_space(sizeof(*insn));
-
-	rc = get_compat_insn(insn, insn32);
-	if (rc)
-		return rc;
-
-	return translated_ioctl(file, COMEDI_INSN, (unsigned long)insn);
-}
-
-/*
- * compat_ioctl file operation.
- *
- * Returns -ENOIOCTLCMD for unrecognised ioctl codes.
- */
-long comedi_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	int rc;
-
-	switch (cmd) {
-	case COMEDI_DEVCONFIG:
-	case COMEDI_DEVINFO:
-	case COMEDI_SUBDINFO:
-	case COMEDI_BUFCONFIG:
-	case COMEDI_BUFINFO:
-		/* Just need to translate the pointer argument. */
-		arg = (unsigned long)compat_ptr(arg);
-		rc = translated_ioctl(file, cmd, arg);
-		break;
-	case COMEDI_LOCK:
-	case COMEDI_UNLOCK:
-	case COMEDI_CANCEL:
-	case COMEDI_POLL:
-	case COMEDI_SETRSUBD:
-	case COMEDI_SETWSUBD:
-		/* No translation needed. */
-		rc = translated_ioctl(file, cmd, arg);
-		break;
-	case COMEDI32_CHANINFO:
-		rc = compat_chaninfo(file, arg);
-		break;
-	case COMEDI32_RANGEINFO:
-		rc = compat_rangeinfo(file, arg);
-		break;
-	case COMEDI32_CMD:
-		rc = compat_cmd(file, arg);
-		break;
-	case COMEDI32_CMDTEST:
-		rc = compat_cmdtest(file, arg);
-		break;
-	case COMEDI32_INSNLIST:
-		rc = compat_insnlist(file, arg);
-		break;
-	case COMEDI32_INSN:
-		rc = compat_insn(file, arg);
-		break;
-	default:
-		rc = -ENOIOCTLCMD;
-		break;
-	}
-	return rc;
-}
diff --git a/drivers/staging/comedi/comedi_compat32.h b/drivers/staging/comedi/comedi_compat32.h
deleted file mode 100644
index 5ce77f3e8c22..000000000000
--- a/drivers/staging/comedi/comedi_compat32.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * comedi/comedi_compat32.h
- * 32-bit ioctl compatibility for 64-bit comedi kernel module.
- *
- * Author: Ian Abbott, MEV Ltd. <abbotti@mev.co.uk>
- * Copyright (C) 2007 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2007 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _COMEDI_COMPAT32_H
-#define _COMEDI_COMPAT32_H
-
-#ifdef CONFIG_COMPAT
-
-struct file;
-long comedi_compat_ioctl(struct file *, unsigned int cmd, unsigned long arg);
-
-#else /* CONFIG_COMPAT */
-
-#define comedi_compat_ioctl	NULL
-
-#endif /* CONFIG_COMPAT */
-
-#endif /* _COMEDI_COMPAT32_H */
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
deleted file mode 100644
index 0e8a45102933..000000000000
--- a/drivers/staging/comedi/comedi_fops.c
+++ /dev/null
@@ -1,2938 +0,0 @@
-/*
- * comedi/comedi_fops.c
- * comedi kernel module
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "comedi_compat32.h"
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/kmod.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include "comedidev.h"
-#include <linux/cdev.h>
-#include <linux/stat.h>
-
-#include <linux/io.h>
-#include <linux/uaccess.h>
-
-#include "comedi_internal.h"
-
-/**
- * comedi_subdevice "runflags"
- * @COMEDI_SRF_RT:		DEPRECATED: command is running real-time
- * @COMEDI_SRF_ERROR:		indicates an COMEDI_CB_ERROR event has occurred
- *				since the last command was started
- * @COMEDI_SRF_RUNNING:		command is running
- * @COMEDI_SRF_FREE_SPRIV:	free s->private on detach
- *
- * @COMEDI_SRF_BUSY_MASK:	runflags that indicate the subdevice is "busy"
- */
-#define COMEDI_SRF_RT		BIT(1)
-#define COMEDI_SRF_ERROR	BIT(2)
-#define COMEDI_SRF_RUNNING	BIT(27)
-#define COMEDI_SRF_FREE_SPRIV	BIT(31)
-
-#define COMEDI_SRF_BUSY_MASK	(COMEDI_SRF_ERROR | COMEDI_SRF_RUNNING)
-
-/**
- * struct comedi_file - per-file private data for comedi device
- * @dev: comedi_device struct
- * @read_subdev: current "read" subdevice
- * @write_subdev: current "write" subdevice
- * @last_detach_count: last known detach count
- * @last_attached: last known attached/detached state
- */
-struct comedi_file {
-	struct comedi_device *dev;
-	struct comedi_subdevice *read_subdev;
-	struct comedi_subdevice *write_subdev;
-	unsigned int last_detach_count;
-	bool last_attached:1;
-};
-
-#define COMEDI_NUM_MINORS 0x100
-#define COMEDI_NUM_SUBDEVICE_MINORS	\
-	(COMEDI_NUM_MINORS - COMEDI_NUM_BOARD_MINORS)
-
-static int comedi_num_legacy_minors;
-module_param(comedi_num_legacy_minors, int, S_IRUGO);
-MODULE_PARM_DESC(comedi_num_legacy_minors,
-		 "number of comedi minor devices to reserve for non-auto-configured devices (default 0)"
-		);
-
-unsigned int comedi_default_buf_size_kb = CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB;
-module_param(comedi_default_buf_size_kb, uint, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(comedi_default_buf_size_kb,
-		 "default asynchronous buffer size in KiB (default "
-		 __MODULE_STRING(CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB) ")");
-
-unsigned int comedi_default_buf_maxsize_kb
-	= CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB;
-module_param(comedi_default_buf_maxsize_kb, uint, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(comedi_default_buf_maxsize_kb,
-		 "default maximum size of asynchronous buffer in KiB (default "
-		 __MODULE_STRING(CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB) ")");
-
-static DEFINE_MUTEX(comedi_board_minor_table_lock);
-static struct comedi_device
-*comedi_board_minor_table[COMEDI_NUM_BOARD_MINORS];
-
-static DEFINE_MUTEX(comedi_subdevice_minor_table_lock);
-/* Note: indexed by minor - COMEDI_NUM_BOARD_MINORS. */
-static struct comedi_subdevice
-*comedi_subdevice_minor_table[COMEDI_NUM_SUBDEVICE_MINORS];
-
-static struct class *comedi_class;
-static struct cdev comedi_cdev;
-
-static void comedi_device_init(struct comedi_device *dev)
-{
-	kref_init(&dev->refcount);
-	spin_lock_init(&dev->spinlock);
-	mutex_init(&dev->mutex);
-	init_rwsem(&dev->attach_lock);
-	dev->minor = -1;
-}
-
-static void comedi_dev_kref_release(struct kref *kref)
-{
-	struct comedi_device *dev =
-		container_of(kref, struct comedi_device, refcount);
-
-	mutex_destroy(&dev->mutex);
-	put_device(dev->class_dev);
-	kfree(dev);
-}
-
-/**
- * comedi_dev_put - release a use of a comedi device structure
- * @dev: comedi_device struct
- *
- * Must be called when a user of a comedi device is finished with it.
- * When the last user of the comedi device calls this function, the
- * comedi device is destroyed.
- *
- * Return 1 if the comedi device is destroyed by this call or dev is
- * NULL, otherwise return 0.  Callers must not assume the comedi
- * device is still valid if this function returns 0.
- */
-int comedi_dev_put(struct comedi_device *dev)
-{
-	if (dev)
-		return kref_put(&dev->refcount, comedi_dev_kref_release);
-	return 1;
-}
-EXPORT_SYMBOL_GPL(comedi_dev_put);
-
-static struct comedi_device *comedi_dev_get(struct comedi_device *dev)
-{
-	if (dev)
-		kref_get(&dev->refcount);
-	return dev;
-}
-
-static void comedi_device_cleanup(struct comedi_device *dev)
-{
-	struct module *driver_module = NULL;
-
-	if (!dev)
-		return;
-	mutex_lock(&dev->mutex);
-	if (dev->attached)
-		driver_module = dev->driver->module;
-	comedi_device_detach(dev);
-	if (driver_module && dev->use_count)
-		module_put(driver_module);
-	mutex_unlock(&dev->mutex);
-}
-
-static bool comedi_clear_board_dev(struct comedi_device *dev)
-{
-	unsigned int i = dev->minor;
-	bool cleared = false;
-
-	mutex_lock(&comedi_board_minor_table_lock);
-	if (dev == comedi_board_minor_table[i]) {
-		comedi_board_minor_table[i] = NULL;
-		cleared = true;
-	}
-	mutex_unlock(&comedi_board_minor_table_lock);
-	return cleared;
-}
-
-static struct comedi_device *comedi_clear_board_minor(unsigned minor)
-{
-	struct comedi_device *dev;
-
-	mutex_lock(&comedi_board_minor_table_lock);
-	dev = comedi_board_minor_table[minor];
-	comedi_board_minor_table[minor] = NULL;
-	mutex_unlock(&comedi_board_minor_table_lock);
-	return dev;
-}
-
-static void comedi_free_board_dev(struct comedi_device *dev)
-{
-	if (dev) {
-		comedi_device_cleanup(dev);
-		if (dev->class_dev) {
-			device_destroy(comedi_class,
-				       MKDEV(COMEDI_MAJOR, dev->minor));
-		}
-		comedi_dev_put(dev);
-	}
-}
-
-static struct comedi_subdevice
-*comedi_subdevice_from_minor(const struct comedi_device *dev, unsigned minor)
-{
-	struct comedi_subdevice *s;
-	unsigned int i = minor - COMEDI_NUM_BOARD_MINORS;
-
-	mutex_lock(&comedi_subdevice_minor_table_lock);
-	s = comedi_subdevice_minor_table[i];
-	if (s && s->device != dev)
-		s = NULL;
-	mutex_unlock(&comedi_subdevice_minor_table_lock);
-	return s;
-}
-
-static struct comedi_device *comedi_dev_get_from_board_minor(unsigned minor)
-{
-	struct comedi_device *dev;
-
-	mutex_lock(&comedi_board_minor_table_lock);
-	dev = comedi_dev_get(comedi_board_minor_table[minor]);
-	mutex_unlock(&comedi_board_minor_table_lock);
-	return dev;
-}
-
-static struct comedi_device *comedi_dev_get_from_subdevice_minor(unsigned minor)
-{
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int i = minor - COMEDI_NUM_BOARD_MINORS;
-
-	mutex_lock(&comedi_subdevice_minor_table_lock);
-	s = comedi_subdevice_minor_table[i];
-	dev = comedi_dev_get(s ? s->device : NULL);
-	mutex_unlock(&comedi_subdevice_minor_table_lock);
-	return dev;
-}
-
-/**
- * comedi_dev_get_from_minor - get comedi device by minor device number
- * @minor: minor device number
- *
- * Finds the comedi device associated by the minor device number, if any,
- * and increments its reference count.  The comedi device is prevented from
- * being freed until a matching call is made to comedi_dev_put().
- *
- * Return a pointer to the comedi device if it exists, with its usage
- * reference incremented.  Return NULL if no comedi device exists with the
- * specified minor device number.
- */
-struct comedi_device *comedi_dev_get_from_minor(unsigned minor)
-{
-	if (minor < COMEDI_NUM_BOARD_MINORS)
-		return comedi_dev_get_from_board_minor(minor);
-
-	return comedi_dev_get_from_subdevice_minor(minor);
-}
-EXPORT_SYMBOL_GPL(comedi_dev_get_from_minor);
-
-static struct comedi_subdevice *
-comedi_read_subdevice(const struct comedi_device *dev, unsigned int minor)
-{
-	struct comedi_subdevice *s;
-
-	if (minor >= COMEDI_NUM_BOARD_MINORS) {
-		s = comedi_subdevice_from_minor(dev, minor);
-		if (!s || (s->subdev_flags & SDF_CMD_READ))
-			return s;
-	}
-	return dev->read_subdev;
-}
-
-static struct comedi_subdevice *
-comedi_write_subdevice(const struct comedi_device *dev, unsigned int minor)
-{
-	struct comedi_subdevice *s;
-
-	if (minor >= COMEDI_NUM_BOARD_MINORS) {
-		s = comedi_subdevice_from_minor(dev, minor);
-		if (!s || (s->subdev_flags & SDF_CMD_WRITE))
-			return s;
-	}
-	return dev->write_subdev;
-}
-
-static void comedi_file_reset(struct file *file)
-{
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-	struct comedi_subdevice *s, *read_s, *write_s;
-	unsigned int minor = iminor(file_inode(file));
-
-	read_s = dev->read_subdev;
-	write_s = dev->write_subdev;
-	if (minor >= COMEDI_NUM_BOARD_MINORS) {
-		s = comedi_subdevice_from_minor(dev, minor);
-		if (!s || s->subdev_flags & SDF_CMD_READ)
-			read_s = s;
-		if (!s || s->subdev_flags & SDF_CMD_WRITE)
-			write_s = s;
-	}
-	cfp->last_attached = dev->attached;
-	cfp->last_detach_count = dev->detach_count;
-	ACCESS_ONCE(cfp->read_subdev) = read_s;
-	ACCESS_ONCE(cfp->write_subdev) = write_s;
-}
-
-static void comedi_file_check(struct file *file)
-{
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-
-	if (cfp->last_attached != dev->attached ||
-	    cfp->last_detach_count != dev->detach_count)
-		comedi_file_reset(file);
-}
-
-static struct comedi_subdevice *comedi_file_read_subdevice(struct file *file)
-{
-	struct comedi_file *cfp = file->private_data;
-
-	comedi_file_check(file);
-	return ACCESS_ONCE(cfp->read_subdev);
-}
-
-static struct comedi_subdevice *comedi_file_write_subdevice(struct file *file)
-{
-	struct comedi_file *cfp = file->private_data;
-
-	comedi_file_check(file);
-	return ACCESS_ONCE(cfp->write_subdev);
-}
-
-static int resize_async_buffer(struct comedi_device *dev,
-			       struct comedi_subdevice *s, unsigned new_size)
-{
-	struct comedi_async *async = s->async;
-	int retval;
-
-	if (new_size > async->max_bufsize)
-		return -EPERM;
-
-	if (s->busy) {
-		dev_dbg(dev->class_dev,
-			"subdevice is busy, cannot resize buffer\n");
-		return -EBUSY;
-	}
-	if (comedi_buf_is_mmapped(s)) {
-		dev_dbg(dev->class_dev,
-			"subdevice is mmapped, cannot resize buffer\n");
-		return -EBUSY;
-	}
-
-	/* make sure buffer is an integral number of pages (we round up) */
-	new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK;
-
-	retval = comedi_buf_alloc(dev, s, new_size);
-	if (retval < 0)
-		return retval;
-
-	if (s->buf_change) {
-		retval = s->buf_change(dev, s);
-		if (retval < 0)
-			return retval;
-	}
-
-	dev_dbg(dev->class_dev, "subd %d buffer resized to %i bytes\n",
-		s->index, async->prealloc_bufsz);
-	return 0;
-}
-
-/* sysfs attribute files */
-
-static ssize_t max_read_buffer_kb_show(struct device *csdev,
-				       struct device_attribute *attr, char *buf)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size = 0;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_read_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_READ) && s->async)
-		size = s->async->max_bufsize / 1024;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return snprintf(buf, PAGE_SIZE, "%u\n", size);
-}
-
-static ssize_t max_read_buffer_kb_store(struct device *csdev,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size;
-	int err;
-
-	err = kstrtouint(buf, 10, &size);
-	if (err)
-		return err;
-	if (size > (UINT_MAX / 1024))
-		return -EINVAL;
-	size *= 1024;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_read_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_READ) && s->async)
-		s->async->max_bufsize = size;
-	else
-		err = -EINVAL;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return err ? err : count;
-}
-static DEVICE_ATTR_RW(max_read_buffer_kb);
-
-static ssize_t read_buffer_kb_show(struct device *csdev,
-				   struct device_attribute *attr, char *buf)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size = 0;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_read_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_READ) && s->async)
-		size = s->async->prealloc_bufsz / 1024;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return snprintf(buf, PAGE_SIZE, "%u\n", size);
-}
-
-static ssize_t read_buffer_kb_store(struct device *csdev,
-				    struct device_attribute *attr,
-				    const char *buf, size_t count)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size;
-	int err;
-
-	err = kstrtouint(buf, 10, &size);
-	if (err)
-		return err;
-	if (size > (UINT_MAX / 1024))
-		return -EINVAL;
-	size *= 1024;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_read_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_READ) && s->async)
-		err = resize_async_buffer(dev, s, size);
-	else
-		err = -EINVAL;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return err ? err : count;
-}
-static DEVICE_ATTR_RW(read_buffer_kb);
-
-static ssize_t max_write_buffer_kb_show(struct device *csdev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size = 0;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_write_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_WRITE) && s->async)
-		size = s->async->max_bufsize / 1024;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return snprintf(buf, PAGE_SIZE, "%u\n", size);
-}
-
-static ssize_t max_write_buffer_kb_store(struct device *csdev,
-					 struct device_attribute *attr,
-					 const char *buf, size_t count)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size;
-	int err;
-
-	err = kstrtouint(buf, 10, &size);
-	if (err)
-		return err;
-	if (size > (UINT_MAX / 1024))
-		return -EINVAL;
-	size *= 1024;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_write_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_WRITE) && s->async)
-		s->async->max_bufsize = size;
-	else
-		err = -EINVAL;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return err ? err : count;
-}
-static DEVICE_ATTR_RW(max_write_buffer_kb);
-
-static ssize_t write_buffer_kb_show(struct device *csdev,
-				    struct device_attribute *attr, char *buf)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size = 0;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_write_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_WRITE) && s->async)
-		size = s->async->prealloc_bufsz / 1024;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return snprintf(buf, PAGE_SIZE, "%u\n", size);
-}
-
-static ssize_t write_buffer_kb_store(struct device *csdev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	unsigned int minor = MINOR(csdev->devt);
-	struct comedi_device *dev;
-	struct comedi_subdevice *s;
-	unsigned int size;
-	int err;
-
-	err = kstrtouint(buf, 10, &size);
-	if (err)
-		return err;
-	if (size > (UINT_MAX / 1024))
-		return -EINVAL;
-	size *= 1024;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return -ENODEV;
-
-	mutex_lock(&dev->mutex);
-	s = comedi_write_subdevice(dev, minor);
-	if (s && (s->subdev_flags & SDF_CMD_WRITE) && s->async)
-		err = resize_async_buffer(dev, s, size);
-	else
-		err = -EINVAL;
-	mutex_unlock(&dev->mutex);
-
-	comedi_dev_put(dev);
-	return err ? err : count;
-}
-static DEVICE_ATTR_RW(write_buffer_kb);
-
-static struct attribute *comedi_dev_attrs[] = {
-	&dev_attr_max_read_buffer_kb.attr,
-	&dev_attr_read_buffer_kb.attr,
-	&dev_attr_max_write_buffer_kb.attr,
-	&dev_attr_write_buffer_kb.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(comedi_dev);
-
-static void __comedi_clear_subdevice_runflags(struct comedi_subdevice *s,
-					      unsigned bits)
-{
-	s->runflags &= ~bits;
-}
-
-static void __comedi_set_subdevice_runflags(struct comedi_subdevice *s,
-					    unsigned bits)
-{
-	s->runflags |= bits;
-}
-
-static void comedi_update_subdevice_runflags(struct comedi_subdevice *s,
-					     unsigned mask, unsigned bits)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&s->spin_lock, flags);
-	__comedi_clear_subdevice_runflags(s, mask);
-	__comedi_set_subdevice_runflags(s, bits & mask);
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-}
-
-static unsigned __comedi_get_subdevice_runflags(struct comedi_subdevice *s)
-{
-	return s->runflags;
-}
-
-static unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s)
-{
-	unsigned long flags;
-	unsigned runflags;
-
-	spin_lock_irqsave(&s->spin_lock, flags);
-	runflags = __comedi_get_subdevice_runflags(s);
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-	return runflags;
-}
-
-static bool comedi_is_runflags_running(unsigned runflags)
-{
-	return runflags & COMEDI_SRF_RUNNING;
-}
-
-static bool comedi_is_runflags_in_error(unsigned runflags)
-{
-	return runflags & COMEDI_SRF_ERROR;
-}
-
-/**
- * comedi_is_subdevice_running - check if async command running on subdevice
- * @s: comedi_subdevice struct
- *
- * Return true if an asynchronous comedi command is active on the comedi
- * subdevice, else return false.
- */
-bool comedi_is_subdevice_running(struct comedi_subdevice *s)
-{
-	unsigned runflags = comedi_get_subdevice_runflags(s);
-
-	return comedi_is_runflags_running(runflags);
-}
-EXPORT_SYMBOL_GPL(comedi_is_subdevice_running);
-
-static bool __comedi_is_subdevice_running(struct comedi_subdevice *s)
-{
-	unsigned runflags = __comedi_get_subdevice_runflags(s);
-
-	return comedi_is_runflags_running(runflags);
-}
-
-static bool comedi_is_subdevice_idle(struct comedi_subdevice *s)
-{
-	unsigned runflags = comedi_get_subdevice_runflags(s);
-
-	return !(runflags & COMEDI_SRF_BUSY_MASK);
-}
-
-bool comedi_can_auto_free_spriv(struct comedi_subdevice *s)
-{
-	unsigned runflags = __comedi_get_subdevice_runflags(s);
-
-	return runflags & COMEDI_SRF_FREE_SPRIV;
-}
-
-/**
- * comedi_set_spriv_auto_free - mark subdevice private data as freeable
- * @s: comedi_subdevice struct
- *
- * Mark the subdevice as having a pointer to private data that can be
- * automatically freed by the comedi core during the detach.
- */
-void comedi_set_spriv_auto_free(struct comedi_subdevice *s)
-{
-	__comedi_set_subdevice_runflags(s, COMEDI_SRF_FREE_SPRIV);
-}
-EXPORT_SYMBOL_GPL(comedi_set_spriv_auto_free);
-
-/**
- * comedi_alloc_spriv - Allocate memory for the subdevice private data.
- * @s: comedi_subdevice struct
- * @size: size of the memory to allocate
- *
- * This also sets the subdevice runflags to allow the core to automatically
- * free the private data during the detach.
- */
-void *comedi_alloc_spriv(struct comedi_subdevice *s, size_t size)
-{
-	s->private = kzalloc(size, GFP_KERNEL);
-	if (s->private)
-		comedi_set_spriv_auto_free(s);
-	return s->private;
-}
-EXPORT_SYMBOL_GPL(comedi_alloc_spriv);
-
-/*
- * This function restores a subdevice to an idle state.
- */
-static void do_become_nonbusy(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-
-	comedi_update_subdevice_runflags(s, COMEDI_SRF_RUNNING, 0);
-	if (async) {
-		comedi_buf_reset(s);
-		async->inttrig = NULL;
-		kfree(async->cmd.chanlist);
-		async->cmd.chanlist = NULL;
-		s->busy = NULL;
-		wake_up_interruptible_all(&async->wait_head);
-	} else {
-		dev_err(dev->class_dev,
-			"BUG: (?) do_become_nonbusy called with async=NULL\n");
-		s->busy = NULL;
-	}
-}
-
-static int do_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	int ret = 0;
-
-	if (comedi_is_subdevice_running(s) && s->cancel)
-		ret = s->cancel(dev, s);
-
-	do_become_nonbusy(dev, s);
-
-	return ret;
-}
-
-void comedi_device_cancel_all(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-	int i;
-
-	if (!dev->attached)
-		return;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		if (s->async)
-			do_cancel(dev, s);
-	}
-}
-
-static int is_device_busy(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-	int i;
-
-	if (!dev->attached)
-		return 0;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		if (s->busy)
-			return 1;
-		if (s->async && comedi_buf_is_mmapped(s))
-			return 1;
-	}
-
-	return 0;
-}
-
-/*
- * COMEDI_DEVCONFIG ioctl
- * attaches (and configures) or detaches a legacy device
- *
- * arg:
- *	pointer to comedi_devconfig structure (NULL if detaching)
- *
- * reads:
- *	comedi_devconfig structure (if attaching)
- *
- * writes:
- *	nothing
- */
-static int do_devconfig_ioctl(struct comedi_device *dev,
-			      struct comedi_devconfig __user *arg)
-{
-	struct comedi_devconfig it;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	if (!arg) {
-		if (is_device_busy(dev))
-			return -EBUSY;
-		if (dev->attached) {
-			struct module *driver_module = dev->driver->module;
-
-			comedi_device_detach(dev);
-			module_put(driver_module);
-		}
-		return 0;
-	}
-
-	if (copy_from_user(&it, arg, sizeof(it)))
-		return -EFAULT;
-
-	it.board_name[COMEDI_NAMELEN - 1] = 0;
-
-	if (it.options[COMEDI_DEVCONF_AUX_DATA_LENGTH]) {
-		dev_warn(dev->class_dev,
-			 "comedi_config --init_data is deprecated\n");
-		return -EINVAL;
-	}
-
-	if (dev->minor >= comedi_num_legacy_minors)
-		/* don't re-use dynamically allocated comedi devices */
-		return -EBUSY;
-
-	/* This increments the driver module count on success. */
-	return comedi_device_attach(dev, &it);
-}
-
-/*
- * COMEDI_BUFCONFIG ioctl
- * buffer configuration
- *
- * arg:
- *	pointer to comedi_bufconfig structure
- *
- * reads:
- *	comedi_bufconfig structure
- *
- * writes:
- *	modified comedi_bufconfig structure
- */
-static int do_bufconfig_ioctl(struct comedi_device *dev,
-			      struct comedi_bufconfig __user *arg)
-{
-	struct comedi_bufconfig bc;
-	struct comedi_async *async;
-	struct comedi_subdevice *s;
-	int retval = 0;
-
-	if (copy_from_user(&bc, arg, sizeof(bc)))
-		return -EFAULT;
-
-	if (bc.subdevice >= dev->n_subdevices)
-		return -EINVAL;
-
-	s = &dev->subdevices[bc.subdevice];
-	async = s->async;
-
-	if (!async) {
-		dev_dbg(dev->class_dev,
-			"subdevice does not have async capability\n");
-		bc.size = 0;
-		bc.maximum_size = 0;
-		goto copyback;
-	}
-
-	if (bc.maximum_size) {
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		async->max_bufsize = bc.maximum_size;
-	}
-
-	if (bc.size) {
-		retval = resize_async_buffer(dev, s, bc.size);
-		if (retval < 0)
-			return retval;
-	}
-
-	bc.size = async->prealloc_bufsz;
-	bc.maximum_size = async->max_bufsize;
-
-copyback:
-	if (copy_to_user(arg, &bc, sizeof(bc)))
-		return -EFAULT;
-
-	return 0;
-}
-
-/*
- * COMEDI_DEVINFO ioctl
- * device info
- *
- * arg:
- *	pointer to comedi_devinfo structure
- *
- * reads:
- *	nothing
- *
- * writes:
- *	comedi_devinfo structure
- */
-static int do_devinfo_ioctl(struct comedi_device *dev,
-			    struct comedi_devinfo __user *arg,
-			    struct file *file)
-{
-	struct comedi_subdevice *s;
-	struct comedi_devinfo devinfo;
-
-	memset(&devinfo, 0, sizeof(devinfo));
-
-	/* fill devinfo structure */
-	devinfo.version_code = COMEDI_VERSION_CODE;
-	devinfo.n_subdevs = dev->n_subdevices;
-	strlcpy(devinfo.driver_name, dev->driver->driver_name, COMEDI_NAMELEN);
-	strlcpy(devinfo.board_name, dev->board_name, COMEDI_NAMELEN);
-
-	s = comedi_file_read_subdevice(file);
-	if (s)
-		devinfo.read_subdevice = s->index;
-	else
-		devinfo.read_subdevice = -1;
-
-	s = comedi_file_write_subdevice(file);
-	if (s)
-		devinfo.write_subdevice = s->index;
-	else
-		devinfo.write_subdevice = -1;
-
-	if (copy_to_user(arg, &devinfo, sizeof(devinfo)))
-		return -EFAULT;
-
-	return 0;
-}
-
-/*
- * COMEDI_SUBDINFO ioctl
- * subdevices info
- *
- * arg:
- *	pointer to array of comedi_subdinfo structures
- *
- * reads:
- *	nothing
- *
- * writes:
- *	array of comedi_subdinfo structures
- */
-static int do_subdinfo_ioctl(struct comedi_device *dev,
-			     struct comedi_subdinfo __user *arg, void *file)
-{
-	int ret, i;
-	struct comedi_subdinfo *tmp, *us;
-	struct comedi_subdevice *s;
-
-	tmp = kcalloc(dev->n_subdevices, sizeof(*tmp), GFP_KERNEL);
-	if (!tmp)
-		return -ENOMEM;
-
-	/* fill subdinfo structs */
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		us = tmp + i;
-
-		us->type = s->type;
-		us->n_chan = s->n_chan;
-		us->subd_flags = s->subdev_flags;
-		if (comedi_is_subdevice_running(s))
-			us->subd_flags |= SDF_RUNNING;
-#define TIMER_nanosec 5		/* backwards compatibility */
-		us->timer_type = TIMER_nanosec;
-		us->len_chanlist = s->len_chanlist;
-		us->maxdata = s->maxdata;
-		if (s->range_table) {
-			us->range_type =
-			    (i << 24) | (0 << 16) | (s->range_table->length);
-		} else {
-			us->range_type = 0;	/* XXX */
-		}
-
-		if (s->busy)
-			us->subd_flags |= SDF_BUSY;
-		if (s->busy == file)
-			us->subd_flags |= SDF_BUSY_OWNER;
-		if (s->lock)
-			us->subd_flags |= SDF_LOCKED;
-		if (s->lock == file)
-			us->subd_flags |= SDF_LOCK_OWNER;
-		if (!s->maxdata && s->maxdata_list)
-			us->subd_flags |= SDF_MAXDATA;
-		if (s->range_table_list)
-			us->subd_flags |= SDF_RANGETYPE;
-		if (s->do_cmd)
-			us->subd_flags |= SDF_CMD;
-
-		if (s->insn_bits != &insn_inval)
-			us->insn_bits_support = COMEDI_SUPPORTED;
-		else
-			us->insn_bits_support = COMEDI_UNSUPPORTED;
-	}
-
-	ret = copy_to_user(arg, tmp, dev->n_subdevices * sizeof(*tmp));
-
-	kfree(tmp);
-
-	return ret ? -EFAULT : 0;
-}
-
-/*
- * COMEDI_CHANINFO ioctl
- * subdevice channel info
- *
- * arg:
- *	pointer to comedi_chaninfo structure
- *
- * reads:
- *	comedi_chaninfo structure
- *
- * writes:
- *	array of maxdata values to chaninfo->maxdata_list if requested
- *	array of range table lengths to chaninfo->range_table_list if requested
- */
-static int do_chaninfo_ioctl(struct comedi_device *dev,
-			     struct comedi_chaninfo __user *arg)
-{
-	struct comedi_subdevice *s;
-	struct comedi_chaninfo it;
-
-	if (copy_from_user(&it, arg, sizeof(it)))
-		return -EFAULT;
-
-	if (it.subdev >= dev->n_subdevices)
-		return -EINVAL;
-	s = &dev->subdevices[it.subdev];
-
-	if (it.maxdata_list) {
-		if (s->maxdata || !s->maxdata_list)
-			return -EINVAL;
-		if (copy_to_user(it.maxdata_list, s->maxdata_list,
-				 s->n_chan * sizeof(unsigned int)))
-			return -EFAULT;
-	}
-
-	if (it.flaglist)
-		return -EINVAL;	/* flaglist not supported */
-
-	if (it.rangelist) {
-		int i;
-
-		if (!s->range_table_list)
-			return -EINVAL;
-		for (i = 0; i < s->n_chan; i++) {
-			int x;
-
-			x = (dev->minor << 28) | (it.subdev << 24) | (i << 16) |
-			    (s->range_table_list[i]->length);
-			if (put_user(x, it.rangelist + i))
-				return -EFAULT;
-		}
-	}
-
-	return 0;
-}
-
-/*
- * COMEDI_BUFINFO ioctl
- * buffer information
- *
- * arg:
- *	pointer to comedi_bufinfo structure
- *
- * reads:
- *	comedi_bufinfo structure
- *
- * writes:
- *	modified comedi_bufinfo structure
- */
-static int do_bufinfo_ioctl(struct comedi_device *dev,
-			    struct comedi_bufinfo __user *arg, void *file)
-{
-	struct comedi_bufinfo bi;
-	struct comedi_subdevice *s;
-	struct comedi_async *async;
-
-	if (copy_from_user(&bi, arg, sizeof(bi)))
-		return -EFAULT;
-
-	if (bi.subdevice >= dev->n_subdevices)
-		return -EINVAL;
-
-	s = &dev->subdevices[bi.subdevice];
-
-	async = s->async;
-
-	if (!async) {
-		dev_dbg(dev->class_dev,
-			"subdevice does not have async capability\n");
-		bi.buf_write_ptr = 0;
-		bi.buf_read_ptr = 0;
-		bi.buf_write_count = 0;
-		bi.buf_read_count = 0;
-		bi.bytes_read = 0;
-		bi.bytes_written = 0;
-		goto copyback;
-	}
-	if (!s->busy) {
-		bi.bytes_read = 0;
-		bi.bytes_written = 0;
-		goto copyback_position;
-	}
-	if (s->busy != file)
-		return -EACCES;
-
-	if (bi.bytes_read && !(async->cmd.flags & CMDF_WRITE)) {
-		bi.bytes_read = comedi_buf_read_alloc(s, bi.bytes_read);
-		comedi_buf_read_free(s, bi.bytes_read);
-
-		if (comedi_is_subdevice_idle(s) &&
-		    comedi_buf_n_bytes_ready(s) == 0) {
-			do_become_nonbusy(dev, s);
-		}
-	}
-
-	if (bi.bytes_written && (async->cmd.flags & CMDF_WRITE)) {
-		bi.bytes_written =
-		    comedi_buf_write_alloc(s, bi.bytes_written);
-		comedi_buf_write_free(s, bi.bytes_written);
-	}
-
-copyback_position:
-	bi.buf_write_count = async->buf_write_count;
-	bi.buf_write_ptr = async->buf_write_ptr;
-	bi.buf_read_count = async->buf_read_count;
-	bi.buf_read_ptr = async->buf_read_ptr;
-
-copyback:
-	if (copy_to_user(arg, &bi, sizeof(bi)))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int check_insn_config_length(struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	if (insn->n < 1)
-		return -EINVAL;
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIO_OUTPUT:
-	case INSN_CONFIG_DIO_INPUT:
-	case INSN_CONFIG_DISARM:
-	case INSN_CONFIG_RESET:
-		if (insn->n == 1)
-			return 0;
-		break;
-	case INSN_CONFIG_ARM:
-	case INSN_CONFIG_DIO_QUERY:
-	case INSN_CONFIG_BLOCK_SIZE:
-	case INSN_CONFIG_FILTER:
-	case INSN_CONFIG_SERIAL_CLOCK:
-	case INSN_CONFIG_BIDIRECTIONAL_DATA:
-	case INSN_CONFIG_ALT_SOURCE:
-	case INSN_CONFIG_SET_COUNTER_MODE:
-	case INSN_CONFIG_8254_READ_STATUS:
-	case INSN_CONFIG_SET_ROUTING:
-	case INSN_CONFIG_GET_ROUTING:
-	case INSN_CONFIG_GET_PWM_STATUS:
-	case INSN_CONFIG_PWM_SET_PERIOD:
-	case INSN_CONFIG_PWM_GET_PERIOD:
-		if (insn->n == 2)
-			return 0;
-		break;
-	case INSN_CONFIG_SET_GATE_SRC:
-	case INSN_CONFIG_GET_GATE_SRC:
-	case INSN_CONFIG_SET_CLOCK_SRC:
-	case INSN_CONFIG_GET_CLOCK_SRC:
-	case INSN_CONFIG_SET_OTHER_SRC:
-	case INSN_CONFIG_GET_COUNTER_STATUS:
-	case INSN_CONFIG_PWM_SET_H_BRIDGE:
-	case INSN_CONFIG_PWM_GET_H_BRIDGE:
-	case INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE:
-		if (insn->n == 3)
-			return 0;
-		break;
-	case INSN_CONFIG_PWM_OUTPUT:
-	case INSN_CONFIG_ANALOG_TRIG:
-		if (insn->n == 5)
-			return 0;
-		break;
-	case INSN_CONFIG_DIGITAL_TRIG:
-		if (insn->n == 6)
-			return 0;
-		break;
-		/*
-		 * by default we allow the insn since we don't have checks for
-		 * all possible cases yet
-		 */
-	default:
-		pr_warn("No check for data length of config insn id %i is implemented\n",
-			data[0]);
-		pr_warn("Add a check to %s in %s\n", __func__, __FILE__);
-		pr_warn("Assuming n=%i is correct\n", insn->n);
-		return 0;
-	}
-	return -EINVAL;
-}
-
-static int parse_insn(struct comedi_device *dev, struct comedi_insn *insn,
-		      unsigned int *data, void *file)
-{
-	struct comedi_subdevice *s;
-	int ret = 0;
-	int i;
-
-	if (insn->insn & INSN_MASK_SPECIAL) {
-		/* a non-subdevice instruction */
-
-		switch (insn->insn) {
-		case INSN_GTOD:
-			{
-				struct timeval tv;
-
-				if (insn->n != 2) {
-					ret = -EINVAL;
-					break;
-				}
-
-				do_gettimeofday(&tv);
-				data[0] = tv.tv_sec;
-				data[1] = tv.tv_usec;
-				ret = 2;
-
-				break;
-			}
-		case INSN_WAIT:
-			if (insn->n != 1 || data[0] >= 100000) {
-				ret = -EINVAL;
-				break;
-			}
-			udelay(data[0] / 1000);
-			ret = 1;
-			break;
-		case INSN_INTTRIG:
-			if (insn->n != 1) {
-				ret = -EINVAL;
-				break;
-			}
-			if (insn->subdev >= dev->n_subdevices) {
-				dev_dbg(dev->class_dev,
-					"%d not usable subdevice\n",
-					insn->subdev);
-				ret = -EINVAL;
-				break;
-			}
-			s = &dev->subdevices[insn->subdev];
-			if (!s->async) {
-				dev_dbg(dev->class_dev, "no async\n");
-				ret = -EINVAL;
-				break;
-			}
-			if (!s->async->inttrig) {
-				dev_dbg(dev->class_dev, "no inttrig\n");
-				ret = -EAGAIN;
-				break;
-			}
-			ret = s->async->inttrig(dev, s, data[0]);
-			if (ret >= 0)
-				ret = 1;
-			break;
-		default:
-			dev_dbg(dev->class_dev, "invalid insn\n");
-			ret = -EINVAL;
-			break;
-		}
-	} else {
-		/* a subdevice instruction */
-		unsigned int maxdata;
-
-		if (insn->subdev >= dev->n_subdevices) {
-			dev_dbg(dev->class_dev, "subdevice %d out of range\n",
-				insn->subdev);
-			ret = -EINVAL;
-			goto out;
-		}
-		s = &dev->subdevices[insn->subdev];
-
-		if (s->type == COMEDI_SUBD_UNUSED) {
-			dev_dbg(dev->class_dev, "%d not usable subdevice\n",
-				insn->subdev);
-			ret = -EIO;
-			goto out;
-		}
-
-		/* are we locked? (ioctl lock) */
-		if (s->lock && s->lock != file) {
-			dev_dbg(dev->class_dev, "device locked\n");
-			ret = -EACCES;
-			goto out;
-		}
-
-		ret = comedi_check_chanlist(s, 1, &insn->chanspec);
-		if (ret < 0) {
-			ret = -EINVAL;
-			dev_dbg(dev->class_dev, "bad chanspec\n");
-			goto out;
-		}
-
-		if (s->busy) {
-			ret = -EBUSY;
-			goto out;
-		}
-		/* This looks arbitrary.  It is. */
-		s->busy = &parse_insn;
-		switch (insn->insn) {
-		case INSN_READ:
-			ret = s->insn_read(dev, s, insn, data);
-			if (ret == -ETIMEDOUT) {
-				dev_dbg(dev->class_dev,
-					"subdevice %d read instruction timed out\n",
-					s->index);
-			}
-			break;
-		case INSN_WRITE:
-			maxdata = s->maxdata_list
-			    ? s->maxdata_list[CR_CHAN(insn->chanspec)]
-			    : s->maxdata;
-			for (i = 0; i < insn->n; ++i) {
-				if (data[i] > maxdata) {
-					ret = -EINVAL;
-					dev_dbg(dev->class_dev,
-						"bad data value(s)\n");
-					break;
-				}
-			}
-			if (ret == 0) {
-				ret = s->insn_write(dev, s, insn, data);
-				if (ret == -ETIMEDOUT) {
-					dev_dbg(dev->class_dev,
-						"subdevice %d write instruction timed out\n",
-						s->index);
-				}
-			}
-			break;
-		case INSN_BITS:
-			if (insn->n != 2) {
-				ret = -EINVAL;
-			} else {
-				/*
-				 * Most drivers ignore the base channel in
-				 * insn->chanspec.  Fix this here if
-				 * the subdevice has <= 32 channels.
-				 */
-				unsigned int orig_mask = data[0];
-				unsigned int shift = 0;
-
-				if (s->n_chan <= 32) {
-					shift = CR_CHAN(insn->chanspec);
-					if (shift > 0) {
-						insn->chanspec = 0;
-						data[0] <<= shift;
-						data[1] <<= shift;
-					}
-				}
-				ret = s->insn_bits(dev, s, insn, data);
-				data[0] = orig_mask;
-				if (shift > 0)
-					data[1] >>= shift;
-			}
-			break;
-		case INSN_CONFIG:
-			ret = check_insn_config_length(insn, data);
-			if (ret)
-				break;
-			ret = s->insn_config(dev, s, insn, data);
-			break;
-		default:
-			ret = -EINVAL;
-			break;
-		}
-
-		s->busy = NULL;
-	}
-
-out:
-	return ret;
-}
-
-/*
- * COMEDI_INSNLIST ioctl
- * synchronous instruction list
- *
- * arg:
- *	pointer to comedi_insnlist structure
- *
- * reads:
- *	comedi_insnlist structure
- *	array of comedi_insn structures from insnlist->insns pointer
- *	data (for writes) from insns[].data pointers
- *
- * writes:
- *	data (for reads) to insns[].data pointers
- */
-/* arbitrary limits */
-#define MAX_SAMPLES 256
-static int do_insnlist_ioctl(struct comedi_device *dev,
-			     struct comedi_insnlist __user *arg, void *file)
-{
-	struct comedi_insnlist insnlist;
-	struct comedi_insn *insns = NULL;
-	unsigned int *data = NULL;
-	int i = 0;
-	int ret = 0;
-
-	if (copy_from_user(&insnlist, arg, sizeof(insnlist)))
-		return -EFAULT;
-
-	data = kmalloc_array(MAX_SAMPLES, sizeof(unsigned int), GFP_KERNEL);
-	if (!data) {
-		ret = -ENOMEM;
-		goto error;
-	}
-
-	insns = kcalloc(insnlist.n_insns, sizeof(*insns), GFP_KERNEL);
-	if (!insns) {
-		ret = -ENOMEM;
-		goto error;
-	}
-
-	if (copy_from_user(insns, insnlist.insns,
-			   sizeof(*insns) * insnlist.n_insns)) {
-		dev_dbg(dev->class_dev, "copy_from_user failed\n");
-		ret = -EFAULT;
-		goto error;
-	}
-
-	for (i = 0; i < insnlist.n_insns; i++) {
-		if (insns[i].n > MAX_SAMPLES) {
-			dev_dbg(dev->class_dev,
-				"number of samples too large\n");
-			ret = -EINVAL;
-			goto error;
-		}
-		if (insns[i].insn & INSN_MASK_WRITE) {
-			if (copy_from_user(data, insns[i].data,
-					   insns[i].n * sizeof(unsigned int))) {
-				dev_dbg(dev->class_dev,
-					"copy_from_user failed\n");
-				ret = -EFAULT;
-				goto error;
-			}
-		}
-		ret = parse_insn(dev, insns + i, data, file);
-		if (ret < 0)
-			goto error;
-		if (insns[i].insn & INSN_MASK_READ) {
-			if (copy_to_user(insns[i].data, data,
-					 insns[i].n * sizeof(unsigned int))) {
-				dev_dbg(dev->class_dev,
-					"copy_to_user failed\n");
-				ret = -EFAULT;
-				goto error;
-			}
-		}
-		if (need_resched())
-			schedule();
-	}
-
-error:
-	kfree(insns);
-	kfree(data);
-
-	if (ret < 0)
-		return ret;
-	return i;
-}
-
-/*
- * COMEDI_INSN ioctl
- * synchronous instruction
- *
- * arg:
- *	pointer to comedi_insn structure
- *
- * reads:
- *	comedi_insn structure
- *	data (for writes) from insn->data pointer
- *
- * writes:
- *	data (for reads) to insn->data pointer
- */
-static int do_insn_ioctl(struct comedi_device *dev,
-			 struct comedi_insn __user *arg, void *file)
-{
-	struct comedi_insn insn;
-	unsigned int *data = NULL;
-	int ret = 0;
-
-	data = kmalloc_array(MAX_SAMPLES, sizeof(unsigned int), GFP_KERNEL);
-	if (!data) {
-		ret = -ENOMEM;
-		goto error;
-	}
-
-	if (copy_from_user(&insn, arg, sizeof(insn))) {
-		ret = -EFAULT;
-		goto error;
-	}
-
-	/* This is where the behavior of insn and insnlist deviate. */
-	if (insn.n > MAX_SAMPLES)
-		insn.n = MAX_SAMPLES;
-	if (insn.insn & INSN_MASK_WRITE) {
-		if (copy_from_user(data,
-				   insn.data,
-				   insn.n * sizeof(unsigned int))) {
-			ret = -EFAULT;
-			goto error;
-		}
-	}
-	ret = parse_insn(dev, &insn, data, file);
-	if (ret < 0)
-		goto error;
-	if (insn.insn & INSN_MASK_READ) {
-		if (copy_to_user(insn.data,
-				 data,
-				 insn.n * sizeof(unsigned int))) {
-			ret = -EFAULT;
-			goto error;
-		}
-	}
-	ret = insn.n;
-
-error:
-	kfree(data);
-
-	return ret;
-}
-
-static int __comedi_get_user_cmd(struct comedi_device *dev,
-				 struct comedi_cmd __user *arg,
-				 struct comedi_cmd *cmd)
-{
-	struct comedi_subdevice *s;
-
-	if (copy_from_user(cmd, arg, sizeof(*cmd))) {
-		dev_dbg(dev->class_dev, "bad cmd address\n");
-		return -EFAULT;
-	}
-
-	if (cmd->subdev >= dev->n_subdevices) {
-		dev_dbg(dev->class_dev, "%d no such subdevice\n", cmd->subdev);
-		return -ENODEV;
-	}
-
-	s = &dev->subdevices[cmd->subdev];
-
-	if (s->type == COMEDI_SUBD_UNUSED) {
-		dev_dbg(dev->class_dev, "%d not valid subdevice\n",
-			cmd->subdev);
-		return -EIO;
-	}
-
-	if (!s->do_cmd || !s->do_cmdtest || !s->async) {
-		dev_dbg(dev->class_dev,
-			"subdevice %d does not support commands\n",
-			cmd->subdev);
-		return -EIO;
-	}
-
-	/* make sure channel/gain list isn't too long */
-	if (cmd->chanlist_len > s->len_chanlist) {
-		dev_dbg(dev->class_dev, "channel/gain list too long %d > %d\n",
-			cmd->chanlist_len, s->len_chanlist);
-		return -EINVAL;
-	}
-
-	/*
-	 * Set the CMDF_WRITE flag to the correct state if the subdevice
-	 * supports only "read" commands or only "write" commands.
-	 */
-	switch (s->subdev_flags & (SDF_CMD_READ | SDF_CMD_WRITE)) {
-	case SDF_CMD_READ:
-		cmd->flags &= ~CMDF_WRITE;
-		break;
-	case SDF_CMD_WRITE:
-		cmd->flags |= CMDF_WRITE;
-		break;
-	default:
-		break;
-	}
-
-	return 0;
-}
-
-static int __comedi_get_user_chanlist(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      unsigned int __user *user_chanlist,
-				      struct comedi_cmd *cmd)
-{
-	unsigned int *chanlist;
-	int ret;
-
-	cmd->chanlist = NULL;
-	chanlist = memdup_user(user_chanlist,
-			       cmd->chanlist_len * sizeof(unsigned int));
-	if (IS_ERR(chanlist))
-		return PTR_ERR(chanlist);
-
-	/* make sure each element in channel/gain list is valid */
-	ret = comedi_check_chanlist(s, cmd->chanlist_len, chanlist);
-	if (ret < 0) {
-		kfree(chanlist);
-		return ret;
-	}
-
-	cmd->chanlist = chanlist;
-
-	return 0;
-}
-
-/*
- * COMEDI_CMD ioctl
- * asynchronous acquisition command set-up
- *
- * arg:
- *	pointer to comedi_cmd structure
- *
- * reads:
- *	comedi_cmd structure
- *	channel/range list from cmd->chanlist pointer
- *
- * writes:
- *	possibly modified comedi_cmd structure (when -EAGAIN returned)
- */
-static int do_cmd_ioctl(struct comedi_device *dev,
-			struct comedi_cmd __user *arg, void *file)
-{
-	struct comedi_cmd cmd;
-	struct comedi_subdevice *s;
-	struct comedi_async *async;
-	unsigned int __user *user_chanlist;
-	int ret;
-
-	/* get the user's cmd and do some simple validation */
-	ret = __comedi_get_user_cmd(dev, arg, &cmd);
-	if (ret)
-		return ret;
-
-	/* save user's chanlist pointer so it can be restored later */
-	user_chanlist = (unsigned int __user *)cmd.chanlist;
-
-	s = &dev->subdevices[cmd.subdev];
-	async = s->async;
-
-	/* are we locked? (ioctl lock) */
-	if (s->lock && s->lock != file) {
-		dev_dbg(dev->class_dev, "subdevice locked\n");
-		return -EACCES;
-	}
-
-	/* are we busy? */
-	if (s->busy) {
-		dev_dbg(dev->class_dev, "subdevice busy\n");
-		return -EBUSY;
-	}
-
-	/* make sure channel/gain list isn't too short */
-	if (cmd.chanlist_len < 1) {
-		dev_dbg(dev->class_dev, "channel/gain list too short %u < 1\n",
-			cmd.chanlist_len);
-		return -EINVAL;
-	}
-
-	async->cmd = cmd;
-	async->cmd.data = NULL;
-
-	/* load channel/gain list */
-	ret = __comedi_get_user_chanlist(dev, s, user_chanlist, &async->cmd);
-	if (ret)
-		goto cleanup;
-
-	ret = s->do_cmdtest(dev, s, &async->cmd);
-
-	if (async->cmd.flags & CMDF_BOGUS || ret) {
-		dev_dbg(dev->class_dev, "test returned %d\n", ret);
-		cmd = async->cmd;
-		/* restore chanlist pointer before copying back */
-		cmd.chanlist = (unsigned int __force *)user_chanlist;
-		cmd.data = NULL;
-		if (copy_to_user(arg, &cmd, sizeof(cmd))) {
-			dev_dbg(dev->class_dev, "fault writing cmd\n");
-			ret = -EFAULT;
-			goto cleanup;
-		}
-		ret = -EAGAIN;
-		goto cleanup;
-	}
-
-	if (!async->prealloc_bufsz) {
-		ret = -ENOMEM;
-		dev_dbg(dev->class_dev, "no buffer (?)\n");
-		goto cleanup;
-	}
-
-	comedi_buf_reset(s);
-
-	async->cb_mask = COMEDI_CB_BLOCK | COMEDI_CB_CANCEL_MASK;
-	if (async->cmd.flags & CMDF_WAKE_EOS)
-		async->cb_mask |= COMEDI_CB_EOS;
-
-	comedi_update_subdevice_runflags(s, COMEDI_SRF_BUSY_MASK,
-					 COMEDI_SRF_RUNNING);
-
-	/*
-	 * Set s->busy _after_ setting COMEDI_SRF_RUNNING flag to avoid
-	 * race with comedi_read() or comedi_write().
-	 */
-	s->busy = file;
-	ret = s->do_cmd(dev, s);
-	if (ret == 0)
-		return 0;
-
-cleanup:
-	do_become_nonbusy(dev, s);
-
-	return ret;
-}
-
-/*
- * COMEDI_CMDTEST ioctl
- * asynchronous acquisition command testing
- *
- * arg:
- *	pointer to comedi_cmd structure
- *
- * reads:
- *	comedi_cmd structure
- *	channel/range list from cmd->chanlist pointer
- *
- * writes:
- *	possibly modified comedi_cmd structure
- */
-static int do_cmdtest_ioctl(struct comedi_device *dev,
-			    struct comedi_cmd __user *arg, void *file)
-{
-	struct comedi_cmd cmd;
-	struct comedi_subdevice *s;
-	unsigned int __user *user_chanlist;
-	int ret;
-
-	/* get the user's cmd and do some simple validation */
-	ret = __comedi_get_user_cmd(dev, arg, &cmd);
-	if (ret)
-		return ret;
-
-	/* save user's chanlist pointer so it can be restored later */
-	user_chanlist = (unsigned int __user *)cmd.chanlist;
-
-	s = &dev->subdevices[cmd.subdev];
-
-	/* user_chanlist can be NULL for COMEDI_CMDTEST ioctl */
-	if (user_chanlist) {
-		/* load channel/gain list */
-		ret = __comedi_get_user_chanlist(dev, s, user_chanlist, &cmd);
-		if (ret)
-			return ret;
-	}
-
-	ret = s->do_cmdtest(dev, s, &cmd);
-
-	kfree(cmd.chanlist);	/* free kernel copy of user chanlist */
-
-	/* restore chanlist pointer before copying back */
-	cmd.chanlist = (unsigned int __force *)user_chanlist;
-
-	if (copy_to_user(arg, &cmd, sizeof(cmd))) {
-		dev_dbg(dev->class_dev, "bad cmd address\n");
-		ret = -EFAULT;
-	}
-
-	return ret;
-}
-
-/*
- * COMEDI_LOCK ioctl
- * lock subdevice
- *
- * arg:
- *	subdevice number
- *
- * reads:
- *	nothing
- *
- * writes:
- *	nothing
- */
-static int do_lock_ioctl(struct comedi_device *dev, unsigned long arg,
-			 void *file)
-{
-	int ret = 0;
-	unsigned long flags;
-	struct comedi_subdevice *s;
-
-	if (arg >= dev->n_subdevices)
-		return -EINVAL;
-	s = &dev->subdevices[arg];
-
-	spin_lock_irqsave(&s->spin_lock, flags);
-	if (s->busy || s->lock)
-		ret = -EBUSY;
-	else
-		s->lock = file;
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-
-	return ret;
-}
-
-/*
- * COMEDI_UNLOCK ioctl
- * unlock subdevice
- *
- * arg:
- *	subdevice number
- *
- * reads:
- *	nothing
- *
- * writes:
- *	nothing
- */
-static int do_unlock_ioctl(struct comedi_device *dev, unsigned long arg,
-			   void *file)
-{
-	struct comedi_subdevice *s;
-
-	if (arg >= dev->n_subdevices)
-		return -EINVAL;
-	s = &dev->subdevices[arg];
-
-	if (s->busy)
-		return -EBUSY;
-
-	if (s->lock && s->lock != file)
-		return -EACCES;
-
-	if (s->lock == file)
-		s->lock = NULL;
-
-	return 0;
-}
-
-/*
- * COMEDI_CANCEL ioctl
- * cancel asynchronous acquisition
- *
- * arg:
- *	subdevice number
- *
- * reads:
- *	nothing
- *
- * writes:
- *	nothing
- */
-static int do_cancel_ioctl(struct comedi_device *dev, unsigned long arg,
-			   void *file)
-{
-	struct comedi_subdevice *s;
-
-	if (arg >= dev->n_subdevices)
-		return -EINVAL;
-	s = &dev->subdevices[arg];
-	if (!s->async)
-		return -EINVAL;
-
-	if (!s->busy)
-		return 0;
-
-	if (s->busy != file)
-		return -EBUSY;
-
-	return do_cancel(dev, s);
-}
-
-/*
- * COMEDI_POLL ioctl
- * instructs driver to synchronize buffers
- *
- * arg:
- *	subdevice number
- *
- * reads:
- *	nothing
- *
- * writes:
- *	nothing
- */
-static int do_poll_ioctl(struct comedi_device *dev, unsigned long arg,
-			 void *file)
-{
-	struct comedi_subdevice *s;
-
-	if (arg >= dev->n_subdevices)
-		return -EINVAL;
-	s = &dev->subdevices[arg];
-
-	if (!s->busy)
-		return 0;
-
-	if (s->busy != file)
-		return -EBUSY;
-
-	if (s->poll)
-		return s->poll(dev, s);
-
-	return -EINVAL;
-}
-
-/*
- * COMEDI_SETRSUBD ioctl
- * sets the current "read" subdevice on a per-file basis
- *
- * arg:
- *	subdevice number
- *
- * reads:
- *	nothing
- *
- * writes:
- *	nothing
- */
-static int do_setrsubd_ioctl(struct comedi_device *dev, unsigned long arg,
-			     struct file *file)
-{
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_subdevice *s_old, *s_new;
-
-	if (arg >= dev->n_subdevices)
-		return -EINVAL;
-
-	s_new = &dev->subdevices[arg];
-	s_old = comedi_file_read_subdevice(file);
-	if (s_old == s_new)
-		return 0;	/* no change */
-
-	if (!(s_new->subdev_flags & SDF_CMD_READ))
-		return -EINVAL;
-
-	/*
-	 * Check the file isn't still busy handling a "read" command on the
-	 * old subdevice (if any).
-	 */
-	if (s_old && s_old->busy == file && s_old->async &&
-	    !(s_old->async->cmd.flags & CMDF_WRITE))
-		return -EBUSY;
-
-	ACCESS_ONCE(cfp->read_subdev) = s_new;
-	return 0;
-}
-
-/*
- * COMEDI_SETWSUBD ioctl
- * sets the current "write" subdevice on a per-file basis
- *
- * arg:
- *	subdevice number
- *
- * reads:
- *	nothing
- *
- * writes:
- *	nothing
- */
-static int do_setwsubd_ioctl(struct comedi_device *dev, unsigned long arg,
-			     struct file *file)
-{
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_subdevice *s_old, *s_new;
-
-	if (arg >= dev->n_subdevices)
-		return -EINVAL;
-
-	s_new = &dev->subdevices[arg];
-	s_old = comedi_file_write_subdevice(file);
-	if (s_old == s_new)
-		return 0;	/* no change */
-
-	if (!(s_new->subdev_flags & SDF_CMD_WRITE))
-		return -EINVAL;
-
-	/*
-	 * Check the file isn't still busy handling a "write" command on the
-	 * old subdevice (if any).
-	 */
-	if (s_old && s_old->busy == file && s_old->async &&
-	    (s_old->async->cmd.flags & CMDF_WRITE))
-		return -EBUSY;
-
-	ACCESS_ONCE(cfp->write_subdev) = s_new;
-	return 0;
-}
-
-static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd,
-				  unsigned long arg)
-{
-	unsigned minor = iminor(file_inode(file));
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-	int rc;
-
-	mutex_lock(&dev->mutex);
-
-	/*
-	 * Device config is special, because it must work on
-	 * an unconfigured device.
-	 */
-	if (cmd == COMEDI_DEVCONFIG) {
-		if (minor >= COMEDI_NUM_BOARD_MINORS) {
-			/* Device config not appropriate on non-board minors. */
-			rc = -ENOTTY;
-			goto done;
-		}
-		rc = do_devconfig_ioctl(dev,
-					(struct comedi_devconfig __user *)arg);
-		if (rc == 0) {
-			if (arg == 0 &&
-			    dev->minor >= comedi_num_legacy_minors) {
-				/*
-				 * Successfully unconfigured a dynamically
-				 * allocated device.  Try and remove it.
-				 */
-				if (comedi_clear_board_dev(dev)) {
-					mutex_unlock(&dev->mutex);
-					comedi_free_board_dev(dev);
-					return rc;
-				}
-			}
-		}
-		goto done;
-	}
-
-	if (!dev->attached) {
-		dev_dbg(dev->class_dev, "no driver attached\n");
-		rc = -ENODEV;
-		goto done;
-	}
-
-	switch (cmd) {
-	case COMEDI_BUFCONFIG:
-		rc = do_bufconfig_ioctl(dev,
-					(struct comedi_bufconfig __user *)arg);
-		break;
-	case COMEDI_DEVINFO:
-		rc = do_devinfo_ioctl(dev, (struct comedi_devinfo __user *)arg,
-				      file);
-		break;
-	case COMEDI_SUBDINFO:
-		rc = do_subdinfo_ioctl(dev,
-				       (struct comedi_subdinfo __user *)arg,
-				       file);
-		break;
-	case COMEDI_CHANINFO:
-		rc = do_chaninfo_ioctl(dev, (void __user *)arg);
-		break;
-	case COMEDI_RANGEINFO:
-		rc = do_rangeinfo_ioctl(dev, (void __user *)arg);
-		break;
-	case COMEDI_BUFINFO:
-		rc = do_bufinfo_ioctl(dev,
-				      (struct comedi_bufinfo __user *)arg,
-				      file);
-		break;
-	case COMEDI_LOCK:
-		rc = do_lock_ioctl(dev, arg, file);
-		break;
-	case COMEDI_UNLOCK:
-		rc = do_unlock_ioctl(dev, arg, file);
-		break;
-	case COMEDI_CANCEL:
-		rc = do_cancel_ioctl(dev, arg, file);
-		break;
-	case COMEDI_CMD:
-		rc = do_cmd_ioctl(dev, (struct comedi_cmd __user *)arg, file);
-		break;
-	case COMEDI_CMDTEST:
-		rc = do_cmdtest_ioctl(dev, (struct comedi_cmd __user *)arg,
-				      file);
-		break;
-	case COMEDI_INSNLIST:
-		rc = do_insnlist_ioctl(dev,
-				       (struct comedi_insnlist __user *)arg,
-				       file);
-		break;
-	case COMEDI_INSN:
-		rc = do_insn_ioctl(dev, (struct comedi_insn __user *)arg,
-				   file);
-		break;
-	case COMEDI_POLL:
-		rc = do_poll_ioctl(dev, arg, file);
-		break;
-	case COMEDI_SETRSUBD:
-		rc = do_setrsubd_ioctl(dev, arg, file);
-		break;
-	case COMEDI_SETWSUBD:
-		rc = do_setwsubd_ioctl(dev, arg, file);
-		break;
-	default:
-		rc = -ENOTTY;
-		break;
-	}
-
-done:
-	mutex_unlock(&dev->mutex);
-	return rc;
-}
-
-static void comedi_vm_open(struct vm_area_struct *area)
-{
-	struct comedi_buf_map *bm;
-
-	bm = area->vm_private_data;
-	comedi_buf_map_get(bm);
-}
-
-static void comedi_vm_close(struct vm_area_struct *area)
-{
-	struct comedi_buf_map *bm;
-
-	bm = area->vm_private_data;
-	comedi_buf_map_put(bm);
-}
-
-static const struct vm_operations_struct comedi_vm_ops = {
-	.open = comedi_vm_open,
-	.close = comedi_vm_close,
-};
-
-static int comedi_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-	struct comedi_subdevice *s;
-	struct comedi_async *async;
-	struct comedi_buf_map *bm = NULL;
-	unsigned long start = vma->vm_start;
-	unsigned long size;
-	int n_pages;
-	int i;
-	int retval;
-
-	/*
-	 * 'trylock' avoids circular dependency with current->mm->mmap_sem
-	 * and down-reading &dev->attach_lock should normally succeed without
-	 * contention unless the device is in the process of being attached
-	 * or detached.
-	 */
-	if (!down_read_trylock(&dev->attach_lock))
-		return -EAGAIN;
-
-	if (!dev->attached) {
-		dev_dbg(dev->class_dev, "no driver attached\n");
-		retval = -ENODEV;
-		goto done;
-	}
-
-	if (vma->vm_flags & VM_WRITE)
-		s = comedi_file_write_subdevice(file);
-	else
-		s = comedi_file_read_subdevice(file);
-	if (!s) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	async = s->async;
-	if (!async) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	if (vma->vm_pgoff != 0) {
-		dev_dbg(dev->class_dev, "mmap() offset must be 0.\n");
-		retval = -EINVAL;
-		goto done;
-	}
-
-	size = vma->vm_end - vma->vm_start;
-	if (size > async->prealloc_bufsz) {
-		retval = -EFAULT;
-		goto done;
-	}
-	if (size & (~PAGE_MASK)) {
-		retval = -EFAULT;
-		goto done;
-	}
-
-	n_pages = size >> PAGE_SHIFT;
-
-	/* get reference to current buf map (if any) */
-	bm = comedi_buf_map_from_subdev_get(s);
-	if (!bm || n_pages > bm->n_pages) {
-		retval = -EINVAL;
-		goto done;
-	}
-	for (i = 0; i < n_pages; ++i) {
-		struct comedi_buf_page *buf = &bm->page_list[i];
-
-		if (remap_pfn_range(vma, start,
-				    page_to_pfn(virt_to_page(buf->virt_addr)),
-				    PAGE_SIZE, PAGE_SHARED)) {
-			retval = -EAGAIN;
-			goto done;
-		}
-		start += PAGE_SIZE;
-	}
-
-	vma->vm_ops = &comedi_vm_ops;
-	vma->vm_private_data = bm;
-
-	vma->vm_ops->open(vma);
-
-	retval = 0;
-done:
-	up_read(&dev->attach_lock);
-	comedi_buf_map_put(bm);	/* put reference to buf map - okay if NULL */
-	return retval;
-}
-
-static unsigned int comedi_poll(struct file *file, poll_table *wait)
-{
-	unsigned int mask = 0;
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-	struct comedi_subdevice *s;
-
-	mutex_lock(&dev->mutex);
-
-	if (!dev->attached) {
-		dev_dbg(dev->class_dev, "no driver attached\n");
-		goto done;
-	}
-
-	s = comedi_file_read_subdevice(file);
-	if (s && s->async) {
-		poll_wait(file, &s->async->wait_head, wait);
-		if (!s->busy || !comedi_is_subdevice_running(s) ||
-		    (s->async->cmd.flags & CMDF_WRITE) ||
-		    comedi_buf_read_n_available(s) > 0)
-			mask |= POLLIN | POLLRDNORM;
-	}
-
-	s = comedi_file_write_subdevice(file);
-	if (s && s->async) {
-		unsigned int bps = comedi_bytes_per_sample(s);
-
-		poll_wait(file, &s->async->wait_head, wait);
-		comedi_buf_write_alloc(s, s->async->prealloc_bufsz);
-		if (!s->busy || !comedi_is_subdevice_running(s) ||
-		    !(s->async->cmd.flags & CMDF_WRITE) ||
-		    comedi_buf_write_n_allocated(s) >= bps)
-			mask |= POLLOUT | POLLWRNORM;
-	}
-
-done:
-	mutex_unlock(&dev->mutex);
-	return mask;
-}
-
-static ssize_t comedi_write(struct file *file, const char __user *buf,
-			    size_t nbytes, loff_t *offset)
-{
-	struct comedi_subdevice *s;
-	struct comedi_async *async;
-	int n, m, count = 0, retval = 0;
-	DECLARE_WAITQUEUE(wait, current);
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-	bool on_wait_queue = false;
-	bool attach_locked;
-	unsigned int old_detach_count;
-
-	/* Protect against device detachment during operation. */
-	down_read(&dev->attach_lock);
-	attach_locked = true;
-	old_detach_count = dev->detach_count;
-
-	if (!dev->attached) {
-		dev_dbg(dev->class_dev, "no driver attached\n");
-		retval = -ENODEV;
-		goto out;
-	}
-
-	s = comedi_file_write_subdevice(file);
-	if (!s || !s->async) {
-		retval = -EIO;
-		goto out;
-	}
-
-	async = s->async;
-
-	if (!s->busy || !nbytes)
-		goto out;
-	if (s->busy != file) {
-		retval = -EACCES;
-		goto out;
-	}
-	if (!(async->cmd.flags & CMDF_WRITE)) {
-		retval = -EINVAL;
-		goto out;
-	}
-
-	add_wait_queue(&async->wait_head, &wait);
-	on_wait_queue = true;
-	while (nbytes > 0 && !retval) {
-		unsigned runflags;
-
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		runflags = comedi_get_subdevice_runflags(s);
-		if (!comedi_is_runflags_running(runflags)) {
-			if (count == 0) {
-				struct comedi_subdevice *new_s;
-
-				if (comedi_is_runflags_in_error(runflags))
-					retval = -EPIPE;
-				else
-					retval = 0;
-				/*
-				 * To avoid deadlock, cannot acquire dev->mutex
-				 * while dev->attach_lock is held.  Need to
-				 * remove task from the async wait queue before
-				 * releasing dev->attach_lock, as it might not
-				 * be valid afterwards.
-				 */
-				remove_wait_queue(&async->wait_head, &wait);
-				on_wait_queue = false;
-				up_read(&dev->attach_lock);
-				attach_locked = false;
-				mutex_lock(&dev->mutex);
-				/*
-				 * Become non-busy unless things have changed
-				 * behind our back.  Checking dev->detach_count
-				 * is unchanged ought to be sufficient (unless
-				 * there have been 2**32 detaches in the
-				 * meantime!), but check the subdevice pointer
-				 * as well just in case.
-				 */
-				new_s = comedi_file_write_subdevice(file);
-				if (dev->attached &&
-				    old_detach_count == dev->detach_count &&
-				    s == new_s && new_s->async == async)
-					do_become_nonbusy(dev, s);
-				mutex_unlock(&dev->mutex);
-			}
-			break;
-		}
-
-		n = nbytes;
-
-		m = n;
-		if (async->buf_write_ptr + m > async->prealloc_bufsz)
-			m = async->prealloc_bufsz - async->buf_write_ptr;
-		comedi_buf_write_alloc(s, async->prealloc_bufsz);
-		if (m > comedi_buf_write_n_allocated(s))
-			m = comedi_buf_write_n_allocated(s);
-		if (m < n)
-			n = m;
-
-		if (n == 0) {
-			if (file->f_flags & O_NONBLOCK) {
-				retval = -EAGAIN;
-				break;
-			}
-			schedule();
-			if (signal_pending(current)) {
-				retval = -ERESTARTSYS;
-				break;
-			}
-			if (!s->busy)
-				break;
-			if (s->busy != file) {
-				retval = -EACCES;
-				break;
-			}
-			if (!(async->cmd.flags & CMDF_WRITE)) {
-				retval = -EINVAL;
-				break;
-			}
-			continue;
-		}
-
-		m = copy_from_user(async->prealloc_buf + async->buf_write_ptr,
-				   buf, n);
-		if (m) {
-			n -= m;
-			retval = -EFAULT;
-		}
-		comedi_buf_write_free(s, n);
-
-		count += n;
-		nbytes -= n;
-
-		buf += n;
-		break;		/* makes device work like a pipe */
-	}
-out:
-	if (on_wait_queue)
-		remove_wait_queue(&async->wait_head, &wait);
-	set_current_state(TASK_RUNNING);
-	if (attach_locked)
-		up_read(&dev->attach_lock);
-
-	return count ? count : retval;
-}
-
-static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
-			   loff_t *offset)
-{
-	struct comedi_subdevice *s;
-	struct comedi_async *async;
-	int n, m, count = 0, retval = 0;
-	DECLARE_WAITQUEUE(wait, current);
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-	unsigned int old_detach_count;
-	bool become_nonbusy = false;
-	bool attach_locked;
-
-	/* Protect against device detachment during operation. */
-	down_read(&dev->attach_lock);
-	attach_locked = true;
-	old_detach_count = dev->detach_count;
-
-	if (!dev->attached) {
-		dev_dbg(dev->class_dev, "no driver attached\n");
-		retval = -ENODEV;
-		goto out;
-	}
-
-	s = comedi_file_read_subdevice(file);
-	if (!s || !s->async) {
-		retval = -EIO;
-		goto out;
-	}
-
-	async = s->async;
-	if (!s->busy || !nbytes)
-		goto out;
-	if (s->busy != file) {
-		retval = -EACCES;
-		goto out;
-	}
-	if (async->cmd.flags & CMDF_WRITE) {
-		retval = -EINVAL;
-		goto out;
-	}
-
-	add_wait_queue(&async->wait_head, &wait);
-	while (nbytes > 0 && !retval) {
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		n = nbytes;
-
-		m = comedi_buf_read_n_available(s);
-		if (async->buf_read_ptr + m > async->prealloc_bufsz)
-			m = async->prealloc_bufsz - async->buf_read_ptr;
-		if (m < n)
-			n = m;
-
-		if (n == 0) {
-			unsigned runflags = comedi_get_subdevice_runflags(s);
-
-			if (!comedi_is_runflags_running(runflags)) {
-				if (comedi_is_runflags_in_error(runflags))
-					retval = -EPIPE;
-				else
-					retval = 0;
-				become_nonbusy = true;
-				break;
-			}
-			if (file->f_flags & O_NONBLOCK) {
-				retval = -EAGAIN;
-				break;
-			}
-			schedule();
-			if (signal_pending(current)) {
-				retval = -ERESTARTSYS;
-				break;
-			}
-			if (!s->busy) {
-				retval = 0;
-				break;
-			}
-			if (s->busy != file) {
-				retval = -EACCES;
-				break;
-			}
-			if (async->cmd.flags & CMDF_WRITE) {
-				retval = -EINVAL;
-				break;
-			}
-			continue;
-		}
-		m = copy_to_user(buf, async->prealloc_buf +
-				 async->buf_read_ptr, n);
-		if (m) {
-			n -= m;
-			retval = -EFAULT;
-		}
-
-		comedi_buf_read_alloc(s, n);
-		comedi_buf_read_free(s, n);
-
-		count += n;
-		nbytes -= n;
-
-		buf += n;
-		break;		/* makes device work like a pipe */
-	}
-	remove_wait_queue(&async->wait_head, &wait);
-	set_current_state(TASK_RUNNING);
-	if (become_nonbusy || comedi_is_subdevice_idle(s)) {
-		struct comedi_subdevice *new_s;
-
-		/*
-		 * To avoid deadlock, cannot acquire dev->mutex
-		 * while dev->attach_lock is held.
-		 */
-		up_read(&dev->attach_lock);
-		attach_locked = false;
-		mutex_lock(&dev->mutex);
-		/*
-		 * Check device hasn't become detached behind our back.
-		 * Checking dev->detach_count is unchanged ought to be
-		 * sufficient (unless there have been 2**32 detaches in the
-		 * meantime!), but check the subdevice pointer as well just in
-		 * case.
-		 */
-		new_s = comedi_file_read_subdevice(file);
-		if (dev->attached && old_detach_count == dev->detach_count &&
-		    s == new_s && new_s->async == async) {
-			if (become_nonbusy || comedi_buf_n_bytes_ready(s) == 0)
-				do_become_nonbusy(dev, s);
-		}
-		mutex_unlock(&dev->mutex);
-	}
-out:
-	if (attach_locked)
-		up_read(&dev->attach_lock);
-
-	return count ? count : retval;
-}
-
-static int comedi_open(struct inode *inode, struct file *file)
-{
-	const unsigned minor = iminor(inode);
-	struct comedi_file *cfp;
-	struct comedi_device *dev = comedi_dev_get_from_minor(minor);
-	int rc;
-
-	if (!dev) {
-		pr_debug("invalid minor number\n");
-		return -ENODEV;
-	}
-
-	cfp = kzalloc(sizeof(*cfp), GFP_KERNEL);
-	if (!cfp)
-		return -ENOMEM;
-
-	cfp->dev = dev;
-
-	mutex_lock(&dev->mutex);
-	if (!dev->attached && !capable(CAP_SYS_ADMIN)) {
-		dev_dbg(dev->class_dev, "not attached and not CAP_SYS_ADMIN\n");
-		rc = -ENODEV;
-		goto out;
-	}
-	if (dev->attached && dev->use_count == 0) {
-		if (!try_module_get(dev->driver->module)) {
-			rc = -ENXIO;
-			goto out;
-		}
-		if (dev->open) {
-			rc = dev->open(dev);
-			if (rc < 0) {
-				module_put(dev->driver->module);
-				goto out;
-			}
-		}
-	}
-
-	dev->use_count++;
-	file->private_data = cfp;
-	comedi_file_reset(file);
-	rc = 0;
-
-out:
-	mutex_unlock(&dev->mutex);
-	if (rc) {
-		comedi_dev_put(dev);
-		kfree(cfp);
-	}
-	return rc;
-}
-
-static int comedi_fasync(int fd, struct file *file, int on)
-{
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-
-	return fasync_helper(fd, file, on, &dev->async_queue);
-}
-
-static int comedi_close(struct inode *inode, struct file *file)
-{
-	struct comedi_file *cfp = file->private_data;
-	struct comedi_device *dev = cfp->dev;
-	struct comedi_subdevice *s = NULL;
-	int i;
-
-	mutex_lock(&dev->mutex);
-
-	if (dev->subdevices) {
-		for (i = 0; i < dev->n_subdevices; i++) {
-			s = &dev->subdevices[i];
-
-			if (s->busy == file)
-				do_cancel(dev, s);
-			if (s->lock == file)
-				s->lock = NULL;
-		}
-	}
-	if (dev->attached && dev->use_count == 1) {
-		if (dev->close)
-			dev->close(dev);
-		module_put(dev->driver->module);
-	}
-
-	dev->use_count--;
-
-	mutex_unlock(&dev->mutex);
-	comedi_dev_put(dev);
-	kfree(cfp);
-
-	return 0;
-}
-
-static const struct file_operations comedi_fops = {
-	.owner = THIS_MODULE,
-	.unlocked_ioctl = comedi_unlocked_ioctl,
-	.compat_ioctl = comedi_compat_ioctl,
-	.open = comedi_open,
-	.release = comedi_close,
-	.read = comedi_read,
-	.write = comedi_write,
-	.mmap = comedi_mmap,
-	.poll = comedi_poll,
-	.fasync = comedi_fasync,
-	.llseek = noop_llseek,
-};
-
-/**
- * comedi_event - handle events for asynchronous comedi command
- * @dev: comedi_device struct
- * @s: comedi_subdevice struct associated with dev
- * Context: interrupt (usually), s->spin_lock spin-lock not held
- *
- * If an asynchronous comedi command is active on the subdevice, process
- * any COMEDI_CB_... event flags that have been set, usually by an
- * interrupt handler.  These may change the run state of the asynchronous
- * command, wake a task, and/or send a SIGIO signal.
- */
-void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	unsigned int events;
-	int si_code = 0;
-	unsigned long flags;
-
-	spin_lock_irqsave(&s->spin_lock, flags);
-
-	events = async->events;
-	async->events = 0;
-	if (!__comedi_is_subdevice_running(s)) {
-		spin_unlock_irqrestore(&s->spin_lock, flags);
-		return;
-	}
-
-	if (events & COMEDI_CB_CANCEL_MASK)
-		__comedi_clear_subdevice_runflags(s, COMEDI_SRF_RUNNING);
-
-	/*
-	 * Remember if an error event has occurred, so an error can be
-	 * returned the next time the user does a read() or write().
-	 */
-	if (events & COMEDI_CB_ERROR_MASK)
-		__comedi_set_subdevice_runflags(s, COMEDI_SRF_ERROR);
-
-	if (async->cb_mask & events) {
-		wake_up_interruptible(&async->wait_head);
-		si_code = async->cmd.flags & CMDF_WRITE ? POLL_OUT : POLL_IN;
-	}
-
-	spin_unlock_irqrestore(&s->spin_lock, flags);
-
-	if (si_code)
-		kill_fasync(&dev->async_queue, SIGIO, si_code);
-}
-EXPORT_SYMBOL_GPL(comedi_event);
-
-/* Note: the ->mutex is pre-locked on successful return */
-struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device)
-{
-	struct comedi_device *dev;
-	struct device *csdev;
-	unsigned i;
-
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
-		return ERR_PTR(-ENOMEM);
-	comedi_device_init(dev);
-	comedi_set_hw_dev(dev, hardware_device);
-	mutex_lock(&dev->mutex);
-	mutex_lock(&comedi_board_minor_table_lock);
-	for (i = hardware_device ? comedi_num_legacy_minors : 0;
-	     i < COMEDI_NUM_BOARD_MINORS; ++i) {
-		if (!comedi_board_minor_table[i]) {
-			comedi_board_minor_table[i] = dev;
-			break;
-		}
-	}
-	mutex_unlock(&comedi_board_minor_table_lock);
-	if (i == COMEDI_NUM_BOARD_MINORS) {
-		mutex_unlock(&dev->mutex);
-		comedi_device_cleanup(dev);
-		comedi_dev_put(dev);
-		dev_err(hardware_device,
-			"ran out of minor numbers for board device files\n");
-		return ERR_PTR(-EBUSY);
-	}
-	dev->minor = i;
-	csdev = device_create(comedi_class, hardware_device,
-			      MKDEV(COMEDI_MAJOR, i), NULL, "comedi%i", i);
-	if (!IS_ERR(csdev))
-		dev->class_dev = get_device(csdev);
-
-	/* Note: dev->mutex needs to be unlocked by the caller. */
-	return dev;
-}
-
-void comedi_release_hardware_device(struct device *hardware_device)
-{
-	int minor;
-	struct comedi_device *dev;
-
-	for (minor = comedi_num_legacy_minors; minor < COMEDI_NUM_BOARD_MINORS;
-	     minor++) {
-		mutex_lock(&comedi_board_minor_table_lock);
-		dev = comedi_board_minor_table[minor];
-		if (dev && dev->hw_dev == hardware_device) {
-			comedi_board_minor_table[minor] = NULL;
-			mutex_unlock(&comedi_board_minor_table_lock);
-			comedi_free_board_dev(dev);
-			break;
-		}
-		mutex_unlock(&comedi_board_minor_table_lock);
-	}
-}
-
-int comedi_alloc_subdevice_minor(struct comedi_subdevice *s)
-{
-	struct comedi_device *dev = s->device;
-	struct device *csdev;
-	unsigned i;
-
-	mutex_lock(&comedi_subdevice_minor_table_lock);
-	for (i = 0; i < COMEDI_NUM_SUBDEVICE_MINORS; ++i) {
-		if (!comedi_subdevice_minor_table[i]) {
-			comedi_subdevice_minor_table[i] = s;
-			break;
-		}
-	}
-	mutex_unlock(&comedi_subdevice_minor_table_lock);
-	if (i == COMEDI_NUM_SUBDEVICE_MINORS) {
-		dev_err(dev->class_dev,
-			"ran out of minor numbers for subdevice files\n");
-		return -EBUSY;
-	}
-	i += COMEDI_NUM_BOARD_MINORS;
-	s->minor = i;
-	csdev = device_create(comedi_class, dev->class_dev,
-			      MKDEV(COMEDI_MAJOR, i), NULL, "comedi%i_subd%i",
-			      dev->minor, s->index);
-	if (!IS_ERR(csdev))
-		s->class_dev = csdev;
-
-	return 0;
-}
-
-void comedi_free_subdevice_minor(struct comedi_subdevice *s)
-{
-	unsigned int i;
-
-	if (!s)
-		return;
-	if (s->minor < COMEDI_NUM_BOARD_MINORS ||
-	    s->minor >= COMEDI_NUM_MINORS)
-		return;
-
-	i = s->minor - COMEDI_NUM_BOARD_MINORS;
-	mutex_lock(&comedi_subdevice_minor_table_lock);
-	if (s == comedi_subdevice_minor_table[i])
-		comedi_subdevice_minor_table[i] = NULL;
-	mutex_unlock(&comedi_subdevice_minor_table_lock);
-	if (s->class_dev) {
-		device_destroy(comedi_class, MKDEV(COMEDI_MAJOR, s->minor));
-		s->class_dev = NULL;
-	}
-}
-
-static void comedi_cleanup_board_minors(void)
-{
-	struct comedi_device *dev;
-	unsigned i;
-
-	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) {
-		dev = comedi_clear_board_minor(i);
-		comedi_free_board_dev(dev);
-	}
-}
-
-static int __init comedi_init(void)
-{
-	int i;
-	int retval;
-
-	pr_info("version " COMEDI_RELEASE " - http://www.comedi.org\n");
-
-	if (comedi_num_legacy_minors < 0 ||
-	    comedi_num_legacy_minors > COMEDI_NUM_BOARD_MINORS) {
-		pr_err("invalid value for module parameter \"comedi_num_legacy_minors\".  Valid values are 0 through %i.\n",
-		       COMEDI_NUM_BOARD_MINORS);
-		return -EINVAL;
-	}
-
-	retval = register_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
-					COMEDI_NUM_MINORS, "comedi");
-	if (retval)
-		return -EIO;
-	cdev_init(&comedi_cdev, &comedi_fops);
-	comedi_cdev.owner = THIS_MODULE;
-
-	retval = kobject_set_name(&comedi_cdev.kobj, "comedi");
-	if (retval) {
-		unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
-					 COMEDI_NUM_MINORS);
-		return retval;
-	}
-
-	if (cdev_add(&comedi_cdev, MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS)) {
-		unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
-					 COMEDI_NUM_MINORS);
-		return -EIO;
-	}
-	comedi_class = class_create(THIS_MODULE, "comedi");
-	if (IS_ERR(comedi_class)) {
-		pr_err("failed to create class\n");
-		cdev_del(&comedi_cdev);
-		unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
-					 COMEDI_NUM_MINORS);
-		return PTR_ERR(comedi_class);
-	}
-
-	comedi_class->dev_groups = comedi_dev_groups;
-
-	/* XXX requires /proc interface */
-	comedi_proc_init();
-
-	/* create devices files for legacy/manual use */
-	for (i = 0; i < comedi_num_legacy_minors; i++) {
-		struct comedi_device *dev;
-
-		dev = comedi_alloc_board_minor(NULL);
-		if (IS_ERR(dev)) {
-			comedi_cleanup_board_minors();
-			cdev_del(&comedi_cdev);
-			unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
-						 COMEDI_NUM_MINORS);
-			return PTR_ERR(dev);
-		}
-		/* comedi_alloc_board_minor() locked the mutex */
-		mutex_unlock(&dev->mutex);
-	}
-
-	return 0;
-}
-module_init(comedi_init);
-
-static void __exit comedi_cleanup(void)
-{
-	comedi_cleanup_board_minors();
-	class_destroy(comedi_class);
-	cdev_del(&comedi_cdev);
-	unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0), COMEDI_NUM_MINORS);
-
-	comedi_proc_cleanup();
-}
-module_exit(comedi_cleanup);
-
-MODULE_AUTHOR("http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi core module");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/comedi_internal.h b/drivers/staging/comedi/comedi_internal.h
deleted file mode 100644
index cd9437f72c35..000000000000
--- a/drivers/staging/comedi/comedi_internal.h
+++ /dev/null
@@ -1,68 +0,0 @@
-#ifndef _COMEDI_INTERNAL_H
-#define _COMEDI_INTERNAL_H
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-/*
- * various internal comedi stuff
- */
-
-struct comedi_buf_map;
-struct comedi_devconfig;
-struct comedi_device;
-struct comedi_insn;
-struct comedi_rangeinfo;
-struct comedi_subdevice;
-struct device;
-
-int do_rangeinfo_ioctl(struct comedi_device *dev,
-		       struct comedi_rangeinfo __user *arg);
-struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device);
-void comedi_release_hardware_device(struct device *hardware_device);
-int comedi_alloc_subdevice_minor(struct comedi_subdevice *s);
-void comedi_free_subdevice_minor(struct comedi_subdevice *s);
-
-int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
-		     unsigned long new_size);
-void comedi_buf_reset(struct comedi_subdevice *s);
-bool comedi_buf_is_mmapped(struct comedi_subdevice *s);
-void comedi_buf_map_get(struct comedi_buf_map *bm);
-int comedi_buf_map_put(struct comedi_buf_map *bm);
-struct comedi_buf_map *comedi_buf_map_from_subdev_get(
-		struct comedi_subdevice *s);
-unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice *s);
-void comedi_device_cancel_all(struct comedi_device *dev);
-bool comedi_can_auto_free_spriv(struct comedi_subdevice *s);
-
-extern unsigned int comedi_default_buf_size_kb;
-extern unsigned int comedi_default_buf_maxsize_kb;
-
-/* drivers.c */
-
-extern struct comedi_driver *comedi_drivers;
-extern struct mutex comedi_drivers_list_lock;
-
-int insn_inval(struct comedi_device *, struct comedi_subdevice *,
-	       struct comedi_insn *, unsigned int *);
-
-void comedi_device_detach(struct comedi_device *);
-int comedi_device_attach(struct comedi_device *, struct comedi_devconfig *);
-
-#ifdef CONFIG_PROC_FS
-
-/* proc.c */
-
-void comedi_proc_init(void);
-void comedi_proc_cleanup(void);
-#else
-static inline void comedi_proc_init(void)
-{
-}
-
-static inline void comedi_proc_cleanup(void)
-{
-}
-#endif
-
-#endif /* _COMEDI_INTERNAL_H */
diff --git a/drivers/staging/comedi/comedi_pci.c b/drivers/staging/comedi/comedi_pci.c
deleted file mode 100644
index 027f0f4e59c1..000000000000
--- a/drivers/staging/comedi/comedi_pci.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * comedi_pci.c
- * Comedi PCI driver specific functions.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "comedi_pci.h"
-
-/**
- * comedi_to_pci_dev() - comedi_device pointer to pci_dev pointer.
- * @dev: comedi_device struct
- */
-struct pci_dev *comedi_to_pci_dev(struct comedi_device *dev)
-{
-	return dev->hw_dev ? to_pci_dev(dev->hw_dev) : NULL;
-}
-EXPORT_SYMBOL_GPL(comedi_to_pci_dev);
-
-/**
- * comedi_pci_enable() - Enable the PCI device and request the regions.
- * @dev: comedi_device struct
- */
-int comedi_pci_enable(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	int rc;
-
-	if (!pcidev)
-		return -ENODEV;
-
-	rc = pci_enable_device(pcidev);
-	if (rc < 0)
-		return rc;
-
-	rc = pci_request_regions(pcidev, dev->board_name);
-	if (rc < 0)
-		pci_disable_device(pcidev);
-	else
-		dev->ioenabled = true;
-
-	return rc;
-}
-EXPORT_SYMBOL_GPL(comedi_pci_enable);
-
-/**
- * comedi_pci_disable() - Release the regions and disable the PCI device.
- * @dev: comedi_device struct
- */
-void comedi_pci_disable(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (pcidev && dev->ioenabled) {
-		pci_release_regions(pcidev);
-		pci_disable_device(pcidev);
-	}
-	dev->ioenabled = false;
-}
-EXPORT_SYMBOL_GPL(comedi_pci_disable);
-
-/**
- * comedi_pci_detach() - A generic (*detach) function for PCI drivers.
- * @dev: comedi_device struct
- */
-void comedi_pci_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (!pcidev || !dev->ioenabled)
-		return;
-
-	if (dev->irq) {
-		free_irq(dev->irq, dev);
-		dev->irq = 0;
-	}
-	if (dev->mmio) {
-		iounmap(dev->mmio);
-		dev->mmio = NULL;
-	}
-	comedi_pci_disable(dev);
-}
-EXPORT_SYMBOL_GPL(comedi_pci_detach);
-
-/**
- * comedi_pci_auto_config() - Configure/probe a comedi PCI driver.
- * @pcidev: pci_dev struct
- * @driver: comedi_driver struct
- * @context: driver specific data, passed to comedi_auto_config()
- *
- * Typically called from the pci_driver (*probe) function.
- */
-int comedi_pci_auto_config(struct pci_dev *pcidev,
-			   struct comedi_driver *driver,
-			   unsigned long context)
-{
-	return comedi_auto_config(&pcidev->dev, driver, context);
-}
-EXPORT_SYMBOL_GPL(comedi_pci_auto_config);
-
-/**
- * comedi_pci_auto_unconfig() - Unconfigure/remove a comedi PCI driver.
- * @pcidev: pci_dev struct
- *
- * Typically called from the pci_driver (*remove) function.
- */
-void comedi_pci_auto_unconfig(struct pci_dev *pcidev)
-{
-	comedi_auto_unconfig(&pcidev->dev);
-}
-EXPORT_SYMBOL_GPL(comedi_pci_auto_unconfig);
-
-/**
- * comedi_pci_driver_register() - Register a comedi PCI driver.
- * @comedi_driver: comedi_driver struct
- * @pci_driver: pci_driver struct
- *
- * This function is used for the module_init() of comedi PCI drivers.
- * Do not call it directly, use the module_comedi_pci_driver() helper
- * macro instead.
- */
-int comedi_pci_driver_register(struct comedi_driver *comedi_driver,
-			       struct pci_driver *pci_driver)
-{
-	int ret;
-
-	ret = comedi_driver_register(comedi_driver);
-	if (ret < 0)
-		return ret;
-
-	ret = pci_register_driver(pci_driver);
-	if (ret < 0) {
-		comedi_driver_unregister(comedi_driver);
-		return ret;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_pci_driver_register);
-
-/**
- * comedi_pci_driver_unregister() - Unregister a comedi PCI driver.
- * @comedi_driver: comedi_driver struct
- * @pci_driver: pci_driver struct
- *
- * This function is used for the module_exit() of comedi PCI drivers.
- * Do not call it directly, use the module_comedi_pci_driver() helper
- * macro instead.
- */
-void comedi_pci_driver_unregister(struct comedi_driver *comedi_driver,
-				  struct pci_driver *pci_driver)
-{
-	pci_unregister_driver(pci_driver);
-	comedi_driver_unregister(comedi_driver);
-}
-EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister);
-
-static int __init comedi_pci_init(void)
-{
-	return 0;
-}
-module_init(comedi_pci_init);
-
-static void __exit comedi_pci_exit(void)
-{
-}
-module_exit(comedi_pci_exit);
-
-MODULE_AUTHOR("http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi PCI interface module");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/comedi_pci.h b/drivers/staging/comedi/comedi_pci.h
deleted file mode 100644
index 4005cc9cf7f1..000000000000
--- a/drivers/staging/comedi/comedi_pci.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * comedi_pci.h
- * header file for Comedi PCI drivers
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _COMEDI_PCI_H
-#define _COMEDI_PCI_H
-
-#include <linux/pci.h>
-
-#include "comedidev.h"
-
-/*
- * PCI Vendor IDs not in <linux/pci_ids.h>
- */
-#define PCI_VENDOR_ID_KOLTER		0x1001
-#define PCI_VENDOR_ID_ICP		0x104c
-#define PCI_VENDOR_ID_DT		0x1116
-#define PCI_VENDOR_ID_IOTECH		0x1616
-#define PCI_VENDOR_ID_CONTEC		0x1221
-#define PCI_VENDOR_ID_RTD		0x1435
-#define PCI_VENDOR_ID_HUMUSOFT		0x186c
-
-struct pci_dev *comedi_to_pci_dev(struct comedi_device *);
-
-int comedi_pci_enable(struct comedi_device *);
-void comedi_pci_disable(struct comedi_device *);
-void comedi_pci_detach(struct comedi_device *);
-
-int comedi_pci_auto_config(struct pci_dev *, struct comedi_driver *,
-			   unsigned long context);
-void comedi_pci_auto_unconfig(struct pci_dev *);
-
-int comedi_pci_driver_register(struct comedi_driver *, struct pci_driver *);
-void comedi_pci_driver_unregister(struct comedi_driver *, struct pci_driver *);
-
-/**
- * module_comedi_pci_driver() - Helper macro for registering a comedi PCI driver
- * @__comedi_driver: comedi_driver struct
- * @__pci_driver: pci_driver struct
- *
- * Helper macro for comedi PCI drivers which do not do anything special
- * in module init/exit. This eliminates a lot of boilerplate. Each
- * module may only use this macro once, and calling it replaces
- * module_init() and module_exit()
- */
-#define module_comedi_pci_driver(__comedi_driver, __pci_driver) \
-	module_driver(__comedi_driver, comedi_pci_driver_register, \
-			comedi_pci_driver_unregister, &(__pci_driver))
-
-#endif /* _COMEDI_PCI_H */
diff --git a/drivers/staging/comedi/comedi_pcmcia.c b/drivers/staging/comedi/comedi_pcmcia.c
deleted file mode 100644
index 7e784399a16f..000000000000
--- a/drivers/staging/comedi/comedi_pcmcia.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * comedi_pcmcia.c
- * Comedi PCMCIA driver specific functions.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-#include "comedi_pcmcia.h"
-
-/**
- * comedi_to_pcmcia_dev() - comedi_device pointer to pcmcia_device pointer.
- * @dev: comedi_device struct
- */
-struct pcmcia_device *comedi_to_pcmcia_dev(struct comedi_device *dev)
-{
-	return dev->hw_dev ? to_pcmcia_dev(dev->hw_dev) : NULL;
-}
-EXPORT_SYMBOL_GPL(comedi_to_pcmcia_dev);
-
-static int comedi_pcmcia_conf_check(struct pcmcia_device *link,
-				    void *priv_data)
-{
-	if (link->config_index == 0)
-		return -EINVAL;
-
-	return pcmcia_request_io(link);
-}
-
-/**
- * comedi_pcmcia_enable() - Request the regions and enable the PCMCIA device.
- * @dev: comedi_device struct
- * @conf_check: optional callback to check the pcmcia_device configuration
- *
- * The comedi PCMCIA driver needs to set the link->config_flags, as
- * appropriate for that driver, before calling this function in order
- * to allow pcmcia_loop_config() to do its internal autoconfiguration.
- */
-int comedi_pcmcia_enable(struct comedi_device *dev,
-			 int (*conf_check)(struct pcmcia_device *, void *))
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	int ret;
-
-	if (!link)
-		return -ENODEV;
-
-	if (!conf_check)
-		conf_check = comedi_pcmcia_conf_check;
-
-	ret = pcmcia_loop_config(link, conf_check, NULL);
-	if (ret)
-		return ret;
-
-	return pcmcia_enable_device(link);
-}
-EXPORT_SYMBOL_GPL(comedi_pcmcia_enable);
-
-/**
- * comedi_pcmcia_disable() - Disable the PCMCIA device and release the regions.
- * @dev: comedi_device struct
- */
-void comedi_pcmcia_disable(struct comedi_device *dev)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-
-	if (link)
-		pcmcia_disable_device(link);
-}
-EXPORT_SYMBOL_GPL(comedi_pcmcia_disable);
-
-/**
- * comedi_pcmcia_auto_config() - Configure/probe a comedi PCMCIA driver.
- * @link: pcmcia_device struct
- * @driver: comedi_driver struct
- *
- * Typically called from the pcmcia_driver (*probe) function.
- */
-int comedi_pcmcia_auto_config(struct pcmcia_device *link,
-			      struct comedi_driver *driver)
-{
-	return comedi_auto_config(&link->dev, driver, 0);
-}
-EXPORT_SYMBOL_GPL(comedi_pcmcia_auto_config);
-
-/**
- * comedi_pcmcia_auto_unconfig() - Unconfigure/remove a comedi PCMCIA driver.
- * @link: pcmcia_device struct
- *
- * Typically called from the pcmcia_driver (*remove) function.
- */
-void comedi_pcmcia_auto_unconfig(struct pcmcia_device *link)
-{
-	comedi_auto_unconfig(&link->dev);
-}
-EXPORT_SYMBOL_GPL(comedi_pcmcia_auto_unconfig);
-
-/**
- * comedi_pcmcia_driver_register() - Register a comedi PCMCIA driver.
- * @comedi_driver: comedi_driver struct
- * @pcmcia_driver: pcmcia_driver struct
- *
- * This function is used for the module_init() of comedi USB drivers.
- * Do not call it directly, use the module_comedi_pcmcia_driver() helper
- * macro instead.
- */
-int comedi_pcmcia_driver_register(struct comedi_driver *comedi_driver,
-				  struct pcmcia_driver *pcmcia_driver)
-{
-	int ret;
-
-	ret = comedi_driver_register(comedi_driver);
-	if (ret < 0)
-		return ret;
-
-	ret = pcmcia_register_driver(pcmcia_driver);
-	if (ret < 0) {
-		comedi_driver_unregister(comedi_driver);
-		return ret;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_pcmcia_driver_register);
-
-/**
- * comedi_pcmcia_driver_unregister() - Unregister a comedi PCMCIA driver.
- * @comedi_driver: comedi_driver struct
- * @pcmcia_driver: pcmcia_driver struct
- *
- * This function is used for the module_exit() of comedi PCMCIA drivers.
- * Do not call it directly, use the module_comedi_pcmcia_driver() helper
- * macro instead.
- */
-void comedi_pcmcia_driver_unregister(struct comedi_driver *comedi_driver,
-				     struct pcmcia_driver *pcmcia_driver)
-{
-	pcmcia_unregister_driver(pcmcia_driver);
-	comedi_driver_unregister(comedi_driver);
-}
-EXPORT_SYMBOL_GPL(comedi_pcmcia_driver_unregister);
-
-static int __init comedi_pcmcia_init(void)
-{
-	return 0;
-}
-module_init(comedi_pcmcia_init);
-
-static void __exit comedi_pcmcia_exit(void)
-{
-}
-module_exit(comedi_pcmcia_exit);
-
-MODULE_AUTHOR("http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi PCMCIA interface module");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/comedi_pcmcia.h b/drivers/staging/comedi/comedi_pcmcia.h
deleted file mode 100644
index 5d3db2b9b4a1..000000000000
--- a/drivers/staging/comedi/comedi_pcmcia.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * comedi_pcmcia.h
- * header file for Comedi PCMCIA drivers
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _COMEDI_PCMCIA_H
-#define _COMEDI_PCMCIA_H
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-
-#include "comedidev.h"
-
-struct pcmcia_device *comedi_to_pcmcia_dev(struct comedi_device *);
-
-int comedi_pcmcia_enable(struct comedi_device *,
-			 int (*conf_check)(struct pcmcia_device *, void *));
-void comedi_pcmcia_disable(struct comedi_device *);
-
-int comedi_pcmcia_auto_config(struct pcmcia_device *, struct comedi_driver *);
-void comedi_pcmcia_auto_unconfig(struct pcmcia_device *);
-
-int comedi_pcmcia_driver_register(struct comedi_driver *,
-				  struct pcmcia_driver *);
-void comedi_pcmcia_driver_unregister(struct comedi_driver *,
-				     struct pcmcia_driver *);
-
-/**
- * module_comedi_pcmcia_driver() - Helper macro for registering a comedi PCMCIA driver
- * @__comedi_driver: comedi_driver struct
- * @__pcmcia_driver: pcmcia_driver struct
- *
- * Helper macro for comedi PCMCIA drivers which do not do anything special
- * in module init/exit. This eliminates a lot of boilerplate. Each
- * module may only use this macro once, and calling it replaces
- * module_init() and module_exit()
- */
-#define module_comedi_pcmcia_driver(__comedi_driver, __pcmcia_driver) \
-	module_driver(__comedi_driver, comedi_pcmcia_driver_register, \
-			comedi_pcmcia_driver_unregister, &(__pcmcia_driver))
-
-#endif /* _COMEDI_PCMCIA_H */
diff --git a/drivers/staging/comedi/comedi_usb.c b/drivers/staging/comedi/comedi_usb.c
deleted file mode 100644
index 68b75e8feec0..000000000000
--- a/drivers/staging/comedi/comedi_usb.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * comedi_usb.c
- * Comedi USB driver specific functions.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-
-#include "comedi_usb.h"
-
-/**
- * comedi_to_usb_interface() - comedi_device pointer to usb_interface pointer.
- * @dev: comedi_device struct
- */
-struct usb_interface *comedi_to_usb_interface(struct comedi_device *dev)
-{
-	return dev->hw_dev ? to_usb_interface(dev->hw_dev) : NULL;
-}
-EXPORT_SYMBOL_GPL(comedi_to_usb_interface);
-
-/**
- * comedi_to_usb_dev() - comedi_device pointer to usb_device pointer.
- * @dev: comedi_device struct
- */
-struct usb_device *comedi_to_usb_dev(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-
-	return intf ? interface_to_usbdev(intf) : NULL;
-}
-EXPORT_SYMBOL_GPL(comedi_to_usb_dev);
-
-/**
- * comedi_usb_auto_config() - Configure/probe a comedi USB driver.
- * @intf: usb_interface struct
- * @driver: comedi_driver struct
- * @context: driver specific data, passed to comedi_auto_config()
- *
- * Typically called from the usb_driver (*probe) function.
- */
-int comedi_usb_auto_config(struct usb_interface *intf,
-			   struct comedi_driver *driver,
-			   unsigned long context)
-{
-	return comedi_auto_config(&intf->dev, driver, context);
-}
-EXPORT_SYMBOL_GPL(comedi_usb_auto_config);
-
-/**
- * comedi_pci_auto_unconfig() - Unconfigure/disconnect a comedi USB driver.
- * @intf: usb_interface struct
- *
- * Typically called from the usb_driver (*disconnect) function.
- */
-void comedi_usb_auto_unconfig(struct usb_interface *intf)
-{
-	comedi_auto_unconfig(&intf->dev);
-}
-EXPORT_SYMBOL_GPL(comedi_usb_auto_unconfig);
-
-/**
- * comedi_usb_driver_register() - Register a comedi USB driver.
- * @comedi_driver: comedi_driver struct
- * @usb_driver: usb_driver struct
- *
- * This function is used for the module_init() of comedi USB drivers.
- * Do not call it directly, use the module_comedi_usb_driver() helper
- * macro instead.
- */
-int comedi_usb_driver_register(struct comedi_driver *comedi_driver,
-			       struct usb_driver *usb_driver)
-{
-	int ret;
-
-	ret = comedi_driver_register(comedi_driver);
-	if (ret < 0)
-		return ret;
-
-	ret = usb_register(usb_driver);
-	if (ret < 0) {
-		comedi_driver_unregister(comedi_driver);
-		return ret;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_usb_driver_register);
-
-/**
- * comedi_usb_driver_unregister() - Unregister a comedi USB driver.
- * @comedi_driver: comedi_driver struct
- * @usb_driver: usb_driver struct
- *
- * This function is used for the module_exit() of comedi USB drivers.
- * Do not call it directly, use the module_comedi_usb_driver() helper
- * macro instead.
- */
-void comedi_usb_driver_unregister(struct comedi_driver *comedi_driver,
-				  struct usb_driver *usb_driver)
-{
-	usb_deregister(usb_driver);
-	comedi_driver_unregister(comedi_driver);
-}
-EXPORT_SYMBOL_GPL(comedi_usb_driver_unregister);
-
-static int __init comedi_usb_init(void)
-{
-	return 0;
-}
-module_init(comedi_usb_init);
-
-static void __exit comedi_usb_exit(void)
-{
-}
-module_exit(comedi_usb_exit);
-
-MODULE_AUTHOR("http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi USB interface module");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/comedi_usb.h b/drivers/staging/comedi/comedi_usb.h
deleted file mode 100644
index 721128bece3c..000000000000
--- a/drivers/staging/comedi/comedi_usb.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * comedi_usb.h
- * header file for USB Comedi drivers
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _COMEDI_USB_H
-#define _COMEDI_USB_H
-
-#include <linux/usb.h>
-
-#include "comedidev.h"
-
-struct usb_interface *comedi_to_usb_interface(struct comedi_device *);
-struct usb_device *comedi_to_usb_dev(struct comedi_device *);
-
-int comedi_usb_auto_config(struct usb_interface *, struct comedi_driver *,
-			   unsigned long context);
-void comedi_usb_auto_unconfig(struct usb_interface *);
-
-int comedi_usb_driver_register(struct comedi_driver *, struct usb_driver *);
-void comedi_usb_driver_unregister(struct comedi_driver *, struct usb_driver *);
-
-/**
- * module_comedi_usb_driver() - Helper macro for registering a comedi USB driver
- * @__comedi_driver: comedi_driver struct
- * @__usb_driver: usb_driver struct
- *
- * Helper macro for comedi USB drivers which do not do anything special
- * in module init/exit. This eliminates a lot of boilerplate. Each
- * module may only use this macro once, and calling it replaces
- * module_init() and module_exit()
- */
-#define module_comedi_usb_driver(__comedi_driver, __usb_driver) \
-	module_driver(__comedi_driver, comedi_usb_driver_register, \
-			comedi_usb_driver_unregister, &(__usb_driver))
-
-#endif /* _COMEDI_USB_H */
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
deleted file mode 100644
index 28a5d3a037a1..000000000000
--- a/drivers/staging/comedi/comedidev.h
+++ /dev/null
@@ -1,619 +0,0 @@
-/*
-    include/linux/comedidev.h
-    header file for kernel-only structures, variables, and constants
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#ifndef _COMEDIDEV_H
-#define _COMEDIDEV_H
-
-#include <linux/dma-mapping.h>
-#include <linux/mutex.h>
-#include <linux/spinlock_types.h>
-#include <linux/rwsem.h>
-#include <linux/kref.h>
-
-#include "comedi.h"
-
-#define COMEDI_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
-#define COMEDI_VERSION_CODE COMEDI_VERSION(COMEDI_MAJORVERSION, \
-	COMEDI_MINORVERSION, COMEDI_MICROVERSION)
-#define COMEDI_RELEASE VERSION
-
-#define COMEDI_NUM_BOARD_MINORS 0x30
-
-struct comedi_subdevice {
-	struct comedi_device *device;
-	int index;
-	int type;
-	int n_chan;
-	int subdev_flags;
-	int len_chanlist;	/* maximum length of channel/gain list */
-
-	void *private;
-
-	struct comedi_async *async;
-
-	void *lock;
-	void *busy;
-	unsigned runflags;
-	spinlock_t spin_lock;
-
-	unsigned int io_bits;
-
-	unsigned int maxdata;	/* if maxdata==0, use list */
-	const unsigned int *maxdata_list;	/* list is channel specific */
-
-	const struct comedi_lrange *range_table;
-	const struct comedi_lrange *const *range_table_list;
-
-	unsigned int *chanlist;	/* driver-owned chanlist (not used) */
-
-	int (*insn_read)(struct comedi_device *, struct comedi_subdevice *,
-			 struct comedi_insn *, unsigned int *);
-	int (*insn_write)(struct comedi_device *, struct comedi_subdevice *,
-			  struct comedi_insn *, unsigned int *);
-	int (*insn_bits)(struct comedi_device *, struct comedi_subdevice *,
-			 struct comedi_insn *, unsigned int *);
-	int (*insn_config)(struct comedi_device *, struct comedi_subdevice *,
-			   struct comedi_insn *, unsigned int *);
-
-	int (*do_cmd)(struct comedi_device *, struct comedi_subdevice *);
-	int (*do_cmdtest)(struct comedi_device *, struct comedi_subdevice *,
-			  struct comedi_cmd *);
-	int (*poll)(struct comedi_device *, struct comedi_subdevice *);
-	int (*cancel)(struct comedi_device *, struct comedi_subdevice *);
-
-	/* called when the buffer changes */
-	int (*buf_change)(struct comedi_device *, struct comedi_subdevice *);
-
-	void (*munge)(struct comedi_device *dev, struct comedi_subdevice *s,
-		      void *data, unsigned int num_bytes,
-		      unsigned int start_chan_index);
-	enum dma_data_direction async_dma_dir;
-
-	unsigned int state;
-
-	struct device *class_dev;
-	int minor;
-
-	unsigned int *readback;
-};
-
-struct comedi_buf_page {
-	void *virt_addr;
-	dma_addr_t dma_addr;
-};
-
-struct comedi_buf_map {
-	struct device *dma_hw_dev;
-	struct comedi_buf_page *page_list;
-	unsigned int n_pages;
-	enum dma_data_direction dma_dir;
-	struct kref refcount;
-};
-
-/**
- * struct comedi_async - control data for asynchronous comedi commands
- * @prealloc_buf:	preallocated buffer
- * @prealloc_bufsz:	buffer size (in bytes)
- * @buf_map:		map of buffer pages
- * @max_bufsize:	maximum buffer size (in bytes)
- * @buf_write_count:	"write completed" count (in bytes, modulo 2**32)
- * @buf_write_alloc_count: "allocated for writing" count (in bytes,
- *			modulo 2**32)
- * @buf_read_count:	"read completed" count (in bytes, modulo 2**32)
- * @buf_read_alloc_count: "allocated for reading" count (in bytes,
- *			modulo 2**32)
- * @buf_write_ptr:	buffer position for writer
- * @buf_read_ptr:	buffer position for reader
- * @cur_chan:		current position in chanlist for scan (for those
- *			drivers that use it)
- * @scans_done:		the number of scans completed (COMEDI_CB_EOS)
- * @scan_progress:	amount received or sent for current scan (in bytes)
- * @munge_chan:		current position in chanlist for "munging"
- * @munge_count:	"munge" count (in bytes, modulo 2**32)
- * @munge_ptr:		buffer position for "munging"
- * @events:		bit-vector of events that have occurred
- * @cmd:		details of comedi command in progress
- * @wait_head:		task wait queue for file reader or writer
- * @cb_mask:		bit-vector of events that should wake waiting tasks
- * @inttrig:		software trigger function for command, or NULL
- *
- * Note about the ..._count and ..._ptr members:
- *
- * Think of the _Count values being integers of unlimited size, indexing
- * into a buffer of infinite length (though only an advancing portion
- * of the buffer of fixed length prealloc_bufsz is accessible at any time).
- * Then:
- *
- *   Buf_Read_Count <= Buf_Read_Alloc_Count <= Munge_Count <=
- *   Buf_Write_Count <= Buf_Write_Alloc_Count <=
- *   (Buf_Read_Count + prealloc_bufsz)
- *
- * (Those aren't the actual members, apart from prealloc_bufsz.) When
- * the buffer is reset, those _Count values start at 0 and only increase
- * in value, maintaining the above inequalities until the next time the
- * buffer is reset.  The buffer is divided into the following regions by
- * the inequalities:
- *
- *   [0, Buf_Read_Count):
- *     old region no longer accessible
- *   [Buf_Read_Count, Buf_Read_Alloc_Count):
- *     filled and munged region allocated for reading but not yet read
- *   [Buf_Read_Alloc_Count, Munge_Count):
- *     filled and munged region not yet allocated for reading
- *   [Munge_Count, Buf_Write_Count):
- *     filled region not yet munged
- *   [Buf_Write_Count, Buf_Write_Alloc_Count):
- *     unfilled region allocated for writing but not yet written
- *   [Buf_Write_Alloc_Count, Buf_Read_Count + prealloc_bufsz):
- *     unfilled region not yet allocated for writing
- *   [Buf_Read_Count + prealloc_bufsz, infinity):
- *     unfilled region not yet accessible
- *
- * Data needs to be written into the buffer before it can be read out,
- * and may need to be converted (or "munged") between the two
- * operations.  Extra unfilled buffer space may need to allocated for
- * writing (advancing Buf_Write_Alloc_Count) before new data is written.
- * After writing new data, the newly filled space needs to be released
- * (advancing Buf_Write_Count).  This also results in the new data being
- * "munged" (advancing Munge_Count).  Before data is read out of the
- * buffer, extra space may need to be allocated for reading (advancing
- * Buf_Read_Alloc_Count).  After the data has been read out, the space
- * needs to be released (advancing Buf_Read_Count).
- *
- * The actual members, buf_read_count, buf_read_alloc_count,
- * munge_count, buf_write_count, and buf_write_alloc_count take the
- * value of the corresponding capitalized _Count values modulo 2^32
- * (UINT_MAX+1).  Subtracting a "higher" _count value from a "lower"
- * _count value gives the same answer as subtracting a "higher" _Count
- * value from a lower _Count value because prealloc_bufsz < UINT_MAX+1.
- * The modulo operation is done implicitly.
- *
- * The buf_read_ptr, munge_ptr, and buf_write_ptr members take the value
- * of the corresponding capitalized _Count values modulo prealloc_bufsz.
- * These correspond to byte indices in the physical buffer.  The modulo
- * operation is done by subtracting prealloc_bufsz when the value
- * exceeds prealloc_bufsz (assuming prealloc_bufsz plus the increment is
- * less than or equal to UINT_MAX).
- */
-struct comedi_async {
-	void *prealloc_buf;
-	unsigned int prealloc_bufsz;
-	struct comedi_buf_map *buf_map;
-	unsigned int max_bufsize;
-	unsigned int buf_write_count;
-	unsigned int buf_write_alloc_count;
-	unsigned int buf_read_count;
-	unsigned int buf_read_alloc_count;
-	unsigned int buf_write_ptr;
-	unsigned int buf_read_ptr;
-	unsigned int cur_chan;
-	unsigned int scans_done;
-	unsigned int scan_progress;
-	unsigned int munge_chan;
-	unsigned int munge_count;
-	unsigned int munge_ptr;
-	unsigned int events;
-	struct comedi_cmd cmd;
-	wait_queue_head_t wait_head;
-	unsigned int cb_mask;
-	int (*inttrig)(struct comedi_device *dev, struct comedi_subdevice *s,
-		       unsigned int x);
-};
-
-/**
- * comedi_async callback "events"
- * @COMEDI_CB_EOS:		end-of-scan
- * @COMEDI_CB_EOA:		end-of-acquisition/output
- * @COMEDI_CB_BLOCK:		data has arrived, wakes up read() / write()
- * @COMEDI_CB_EOBUF:		DEPRECATED: end of buffer
- * @COMEDI_CB_ERROR:		card error during acquisition
- * @COMEDI_CB_OVERFLOW:		buffer overflow/underflow
- *
- * @COMEDI_CB_ERROR_MASK:	events that indicate an error has occurred
- * @COMEDI_CB_CANCEL_MASK:	events that will cancel an async command
- */
-#define COMEDI_CB_EOS		BIT(0)
-#define COMEDI_CB_EOA		BIT(1)
-#define COMEDI_CB_BLOCK		BIT(2)
-#define COMEDI_CB_EOBUF		BIT(3)
-#define COMEDI_CB_ERROR		BIT(4)
-#define COMEDI_CB_OVERFLOW	BIT(5)
-
-#define COMEDI_CB_ERROR_MASK	(COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW)
-#define COMEDI_CB_CANCEL_MASK	(COMEDI_CB_EOA | COMEDI_CB_ERROR_MASK)
-
-struct comedi_driver {
-	struct comedi_driver *next;
-
-	const char *driver_name;
-	struct module *module;
-	int (*attach)(struct comedi_device *, struct comedi_devconfig *);
-	void (*detach)(struct comedi_device *);
-	int (*auto_attach)(struct comedi_device *, unsigned long);
-
-	/* number of elements in board_name and board_id arrays */
-	unsigned int num_names;
-	const char *const *board_name;
-	/* offset in bytes from one board name pointer to the next */
-	int offset;
-};
-
-struct comedi_device {
-	int use_count;
-	struct comedi_driver *driver;
-	struct comedi_8254 *pacer;
-	void *private;
-
-	struct device *class_dev;
-	int minor;
-	unsigned int detach_count;
-	/* hw_dev is passed to dma_alloc_coherent when allocating async buffers
-	 * for subdevices that have async_dma_dir set to something other than
-	 * DMA_NONE */
-	struct device *hw_dev;
-
-	const char *board_name;
-	const void *board_ptr;
-	bool attached:1;
-	bool ioenabled:1;
-	spinlock_t spinlock;
-	struct mutex mutex;
-	struct rw_semaphore attach_lock;
-	struct kref refcount;
-
-	int n_subdevices;
-	struct comedi_subdevice *subdevices;
-
-	/* dumb */
-	void __iomem *mmio;
-	unsigned long iobase;
-	unsigned long iolen;
-	unsigned int irq;
-
-	struct comedi_subdevice *read_subdev;
-	struct comedi_subdevice *write_subdev;
-
-	struct fasync_struct *async_queue;
-
-	int (*open)(struct comedi_device *dev);
-	void (*close)(struct comedi_device *dev);
-};
-
-/*
- * function prototypes
- */
-
-void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s);
-
-struct comedi_device *comedi_dev_get_from_minor(unsigned minor);
-int comedi_dev_put(struct comedi_device *dev);
-
-bool comedi_is_subdevice_running(struct comedi_subdevice *s);
-
-void *comedi_alloc_spriv(struct comedi_subdevice *s, size_t size);
-void comedi_set_spriv_auto_free(struct comedi_subdevice *s);
-
-int comedi_check_chanlist(struct comedi_subdevice *s,
-			  int n,
-			  unsigned int *chanlist);
-
-/* range stuff */
-
-#define RANGE(a, b)		{(a)*1e6, (b)*1e6, 0}
-#define RANGE_ext(a, b)		{(a)*1e6, (b)*1e6, RF_EXTERNAL}
-#define RANGE_mA(a, b)		{(a)*1e6, (b)*1e6, UNIT_mA}
-#define RANGE_unitless(a, b)	{(a)*1e6, (b)*1e6, 0}
-#define BIP_RANGE(a)		{-(a)*1e6, (a)*1e6, 0}
-#define UNI_RANGE(a)		{0, (a)*1e6, 0}
-
-extern const struct comedi_lrange range_bipolar10;
-extern const struct comedi_lrange range_bipolar5;
-extern const struct comedi_lrange range_bipolar2_5;
-extern const struct comedi_lrange range_unipolar10;
-extern const struct comedi_lrange range_unipolar5;
-extern const struct comedi_lrange range_unipolar2_5;
-extern const struct comedi_lrange range_0_20mA;
-extern const struct comedi_lrange range_4_20mA;
-extern const struct comedi_lrange range_0_32mA;
-extern const struct comedi_lrange range_unknown;
-
-#define range_digital		range_unipolar5
-
-#if __GNUC__ >= 3
-#define GCC_ZERO_LENGTH_ARRAY
-#else
-#define GCC_ZERO_LENGTH_ARRAY 0
-#endif
-
-struct comedi_lrange {
-	int length;
-	struct comedi_krange range[GCC_ZERO_LENGTH_ARRAY];
-};
-
-static inline bool comedi_range_is_bipolar(struct comedi_subdevice *s,
-					   unsigned int range)
-{
-	return s->range_table->range[range].min < 0;
-}
-
-static inline bool comedi_range_is_unipolar(struct comedi_subdevice *s,
-					    unsigned int range)
-{
-	return s->range_table->range[range].min >= 0;
-}
-
-static inline bool comedi_range_is_external(struct comedi_subdevice *s,
-					    unsigned int range)
-{
-	return !!(s->range_table->range[range].flags & RF_EXTERNAL);
-}
-
-static inline bool comedi_chan_range_is_bipolar(struct comedi_subdevice *s,
-						unsigned int chan,
-						unsigned int range)
-{
-	return s->range_table_list[chan]->range[range].min < 0;
-}
-
-static inline bool comedi_chan_range_is_unipolar(struct comedi_subdevice *s,
-						 unsigned int chan,
-						 unsigned int range)
-{
-	return s->range_table_list[chan]->range[range].min >= 0;
-}
-
-static inline bool comedi_chan_range_is_external(struct comedi_subdevice *s,
-						 unsigned int chan,
-						 unsigned int range)
-{
-	return !!(s->range_table_list[chan]->range[range].flags & RF_EXTERNAL);
-}
-
-/* munge between offset binary and two's complement values */
-static inline unsigned int comedi_offset_munge(struct comedi_subdevice *s,
-					       unsigned int val)
-{
-	return val ^ s->maxdata ^ (s->maxdata >> 1);
-}
-
-/**
- * comedi_bytes_per_sample - determine subdevice sample size
- * @s:		comedi_subdevice struct
- *
- * The sample size will be 4 (sizeof int) or 2 (sizeof short) depending on
- * whether the SDF_LSAMPL subdevice flag is set or not.
- *
- * Returns the subdevice sample size.
- */
-static inline unsigned int comedi_bytes_per_sample(struct comedi_subdevice *s)
-{
-	return s->subdev_flags & SDF_LSAMPL ? sizeof(int) : sizeof(short);
-}
-
-/**
- * comedi_sample_shift - determine log2 of subdevice sample size
- * @s:		comedi_subdevice struct
- *
- * The sample size will be 4 (sizeof int) or 2 (sizeof short) depending on
- * whether the SDF_LSAMPL subdevice flag is set or not.  The log2 of the
- * sample size will be 2 or 1 and can be used as the right operand of a
- * bit-shift operator to multiply or divide something by the sample size.
- *
- * Returns log2 of the subdevice sample size.
- */
-static inline unsigned int comedi_sample_shift(struct comedi_subdevice *s)
-{
-	return s->subdev_flags & SDF_LSAMPL ? 2 : 1;
-}
-
-/**
- * comedi_bytes_to_samples - converts a number of bytes to a number of samples
- * @s:		comedi_subdevice struct
- * @nbytes:	number of bytes
- *
- * Returns the number of bytes divided by the subdevice sample size.
- */
-static inline unsigned int comedi_bytes_to_samples(struct comedi_subdevice *s,
-						   unsigned int nbytes)
-{
-	return nbytes >> comedi_sample_shift(s);
-}
-
-/**
- * comedi_samples_to_bytes - converts a number of samples to a number of bytes
- * @s:		comedi_subdevice struct
- * @nsamples:	number of samples
- *
- * Returns the number of samples multiplied by the subdevice sample size.
- * Does not check for arithmetic overflow.
- */
-static inline unsigned int comedi_samples_to_bytes(struct comedi_subdevice *s,
-						   unsigned int nsamples)
-{
-	return nsamples << comedi_sample_shift(s);
-}
-
-/**
- * comedi_check_trigger_src() - trivially validate a comedi_cmd trigger source
- * @src: pointer to the trigger source to validate
- * @flags: bitmask of valid TRIG_* for the trigger
- *
- * This is used in "step 1" of the do_cmdtest functions of comedi drivers
- * to vaildate the comedi_cmd triggers. The mask of the @src against the
- * @flags allows the userspace comedilib to pass all the comedi_cmd
- * triggers as TRIG_ANY and get back a bitmask of the valid trigger sources.
- */
-static inline int comedi_check_trigger_src(unsigned int *src,
-					   unsigned int flags)
-{
-	unsigned int orig_src = *src;
-
-	*src = orig_src & flags;
-	if (*src == TRIG_INVALID || *src != orig_src)
-		return -EINVAL;
-	return 0;
-}
-
-/**
- * comedi_check_trigger_is_unique() - make sure a trigger source is unique
- * @src: the trigger source to check
- */
-static inline int comedi_check_trigger_is_unique(unsigned int src)
-{
-	/* this test is true if more than one _src bit is set */
-	if ((src & (src - 1)) != 0)
-		return -EINVAL;
-	return 0;
-}
-
-/**
- * comedi_check_trigger_arg_is() - trivially validate a trigger argument
- * @arg: pointer to the trigger arg to validate
- * @val: the value the argument should be
- */
-static inline int comedi_check_trigger_arg_is(unsigned int *arg,
-					      unsigned int val)
-{
-	if (*arg != val) {
-		*arg = val;
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/**
- * comedi_check_trigger_arg_min() - trivially validate a trigger argument
- * @arg: pointer to the trigger arg to validate
- * @val: the minimum value the argument should be
- */
-static inline int comedi_check_trigger_arg_min(unsigned int *arg,
-					       unsigned int val)
-{
-	if (*arg < val) {
-		*arg = val;
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/**
- * comedi_check_trigger_arg_max() - trivially validate a trigger argument
- * @arg: pointer to the trigger arg to validate
- * @val: the maximum value the argument should be
- */
-static inline int comedi_check_trigger_arg_max(unsigned int *arg,
-					       unsigned int val)
-{
-	if (*arg > val) {
-		*arg = val;
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/*
- * Must set dev->hw_dev if you wish to dma directly into comedi's buffer.
- * Also useful for retrieving a previously configured hardware device of
- * known bus type.  Set automatically for auto-configured devices.
- * Automatically set to NULL when detaching hardware device.
- */
-int comedi_set_hw_dev(struct comedi_device *dev, struct device *hw_dev);
-
-static inline unsigned int comedi_buf_n_bytes_ready(struct comedi_subdevice *s)
-{
-	return s->async->buf_write_count - s->async->buf_read_count;
-}
-
-unsigned int comedi_buf_write_alloc(struct comedi_subdevice *s, unsigned int n);
-unsigned int comedi_buf_write_free(struct comedi_subdevice *s, unsigned int n);
-
-unsigned int comedi_buf_read_n_available(struct comedi_subdevice *s);
-unsigned int comedi_buf_read_alloc(struct comedi_subdevice *s, unsigned int n);
-unsigned int comedi_buf_read_free(struct comedi_subdevice *s, unsigned int n);
-
-unsigned int comedi_buf_write_samples(struct comedi_subdevice *s,
-				      const void *data, unsigned int nsamples);
-unsigned int comedi_buf_read_samples(struct comedi_subdevice *s,
-				     void *data, unsigned int nsamples);
-
-/* drivers.c - general comedi driver functions */
-
-#define COMEDI_TIMEOUT_MS	1000
-
-int comedi_timeout(struct comedi_device *, struct comedi_subdevice *,
-		   struct comedi_insn *,
-		   int (*cb)(struct comedi_device *, struct comedi_subdevice *,
-			     struct comedi_insn *, unsigned long context),
-		   unsigned long context);
-
-unsigned int comedi_handle_events(struct comedi_device *dev,
-				  struct comedi_subdevice *s);
-
-int comedi_dio_insn_config(struct comedi_device *, struct comedi_subdevice *,
-			   struct comedi_insn *, unsigned int *data,
-			   unsigned int mask);
-unsigned int comedi_dio_update_state(struct comedi_subdevice *,
-				     unsigned int *data);
-unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s);
-unsigned int comedi_nscans_left(struct comedi_subdevice *s,
-				unsigned int nscans);
-unsigned int comedi_nsamples_left(struct comedi_subdevice *s,
-				  unsigned int nsamples);
-void comedi_inc_scan_progress(struct comedi_subdevice *s,
-			      unsigned int num_bytes);
-
-void *comedi_alloc_devpriv(struct comedi_device *, size_t);
-int comedi_alloc_subdevices(struct comedi_device *, int);
-int comedi_alloc_subdev_readback(struct comedi_subdevice *);
-
-int comedi_readback_insn_read(struct comedi_device *, struct comedi_subdevice *,
-			      struct comedi_insn *, unsigned int *data);
-
-int comedi_load_firmware(struct comedi_device *, struct device *,
-			 const char *name,
-			 int (*cb)(struct comedi_device *,
-				   const u8 *data, size_t size,
-				   unsigned long context),
-			 unsigned long context);
-
-int __comedi_request_region(struct comedi_device *,
-			    unsigned long start, unsigned long len);
-int comedi_request_region(struct comedi_device *,
-			  unsigned long start, unsigned long len);
-void comedi_legacy_detach(struct comedi_device *);
-
-int comedi_auto_config(struct device *, struct comedi_driver *,
-		       unsigned long context);
-void comedi_auto_unconfig(struct device *);
-
-int comedi_driver_register(struct comedi_driver *);
-void comedi_driver_unregister(struct comedi_driver *);
-
-/**
- * module_comedi_driver() - Helper macro for registering a comedi driver
- * @__comedi_driver: comedi_driver struct
- *
- * Helper macro for comedi drivers which do not do anything special in module
- * init/exit. This eliminates a lot of boilerplate. Each module may only use
- * this macro once, and calling it replaces module_init() and module_exit().
- */
-#define module_comedi_driver(__comedi_driver) \
-	module_driver(__comedi_driver, comedi_driver_register, \
-			comedi_driver_unregister)
-
-#endif /* _COMEDIDEV_H */
diff --git a/drivers/staging/comedi/comedilib.h b/drivers/staging/comedi/comedilib.h
deleted file mode 100644
index 56baf852ecf5..000000000000
--- a/drivers/staging/comedi/comedilib.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
-    linux/include/comedilib.h
-    header file for kcomedilib
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#ifndef _LINUX_COMEDILIB_H
-#define _LINUX_COMEDILIB_H
-
-struct comedi_device *comedi_open(const char *path);
-int comedi_close(struct comedi_device *dev);
-int comedi_dio_get_config(struct comedi_device *dev, unsigned int subdev,
-			  unsigned int chan, unsigned int *io);
-int comedi_dio_config(struct comedi_device *dev, unsigned int subdev,
-		      unsigned int chan, unsigned int io);
-int comedi_dio_bitfield2(struct comedi_device *dev, unsigned int subdev,
-			 unsigned int mask, unsigned int *bits,
-			 unsigned int base_channel);
-int comedi_find_subdevice_by_type(struct comedi_device *dev, int type,
-				  unsigned int subd);
-int comedi_get_n_channels(struct comedi_device *dev, unsigned int subdevice);
-
-#endif
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
deleted file mode 100644
index b03bc6639f79..000000000000
--- a/drivers/staging/comedi/drivers.c
+++ /dev/null
@@ -1,956 +0,0 @@
-/*
-    module/drivers.c
-    functions for manipulating drivers
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
-    Copyright (C) 2002 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kconfig.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fcntl.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/highmem.h>	/* for SuSE brokenness */
-#include <linux/vmalloc.h>
-#include <linux/cdev.h>
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/firmware.h>
-
-#include "comedidev.h"
-#include "comedi_internal.h"
-
-struct comedi_driver *comedi_drivers;
-/* protects access to comedi_drivers */
-DEFINE_MUTEX(comedi_drivers_list_lock);
-
-int comedi_set_hw_dev(struct comedi_device *dev, struct device *hw_dev)
-{
-	if (hw_dev == dev->hw_dev)
-		return 0;
-	if (dev->hw_dev)
-		return -EEXIST;
-	dev->hw_dev = get_device(hw_dev);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_set_hw_dev);
-
-static void comedi_clear_hw_dev(struct comedi_device *dev)
-{
-	put_device(dev->hw_dev);
-	dev->hw_dev = NULL;
-}
-
-/**
- * comedi_alloc_devpriv() - Allocate memory for the device private data.
- * @dev: comedi_device struct
- * @size: size of the memory to allocate
- */
-void *comedi_alloc_devpriv(struct comedi_device *dev, size_t size)
-{
-	dev->private = kzalloc(size, GFP_KERNEL);
-	return dev->private;
-}
-EXPORT_SYMBOL_GPL(comedi_alloc_devpriv);
-
-int comedi_alloc_subdevices(struct comedi_device *dev, int num_subdevices)
-{
-	struct comedi_subdevice *s;
-	int i;
-
-	if (num_subdevices < 1)
-		return -EINVAL;
-
-	s = kcalloc(num_subdevices, sizeof(*s), GFP_KERNEL);
-	if (!s)
-		return -ENOMEM;
-	dev->subdevices = s;
-	dev->n_subdevices = num_subdevices;
-
-	for (i = 0; i < num_subdevices; ++i) {
-		s = &dev->subdevices[i];
-		s->device = dev;
-		s->index = i;
-		s->async_dma_dir = DMA_NONE;
-		spin_lock_init(&s->spin_lock);
-		s->minor = -1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_alloc_subdevices);
-
-/**
- * comedi_alloc_subdev_readback() - Allocate memory for the subdevice readback.
- * @s: comedi_subdevice struct
- */
-int comedi_alloc_subdev_readback(struct comedi_subdevice *s)
-{
-	if (!s->n_chan)
-		return -EINVAL;
-
-	s->readback = kcalloc(s->n_chan, sizeof(*s->readback), GFP_KERNEL);
-	if (!s->readback)
-		return -ENOMEM;
-
-	if (!s->insn_read)
-		s->insn_read = comedi_readback_insn_read;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_alloc_subdev_readback);
-
-static void comedi_device_detach_cleanup(struct comedi_device *dev)
-{
-	int i;
-	struct comedi_subdevice *s;
-
-	if (dev->subdevices) {
-		for (i = 0; i < dev->n_subdevices; i++) {
-			s = &dev->subdevices[i];
-			if (comedi_can_auto_free_spriv(s))
-				kfree(s->private);
-			comedi_free_subdevice_minor(s);
-			if (s->async) {
-				comedi_buf_alloc(dev, s, 0);
-				kfree(s->async);
-			}
-			kfree(s->readback);
-		}
-		kfree(dev->subdevices);
-		dev->subdevices = NULL;
-		dev->n_subdevices = 0;
-	}
-	kfree(dev->private);
-	kfree(dev->pacer);
-	dev->private = NULL;
-	dev->pacer = NULL;
-	dev->driver = NULL;
-	dev->board_name = NULL;
-	dev->board_ptr = NULL;
-	dev->mmio = NULL;
-	dev->iobase = 0;
-	dev->iolen = 0;
-	dev->ioenabled = false;
-	dev->irq = 0;
-	dev->read_subdev = NULL;
-	dev->write_subdev = NULL;
-	dev->open = NULL;
-	dev->close = NULL;
-	comedi_clear_hw_dev(dev);
-}
-
-void comedi_device_detach(struct comedi_device *dev)
-{
-	comedi_device_cancel_all(dev);
-	down_write(&dev->attach_lock);
-	dev->attached = false;
-	dev->detach_count++;
-	if (dev->driver)
-		dev->driver->detach(dev);
-	comedi_device_detach_cleanup(dev);
-	up_write(&dev->attach_lock);
-}
-
-static int poll_invalid(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	return -EINVAL;
-}
-
-int insn_inval(struct comedi_device *dev, struct comedi_subdevice *s,
-	       struct comedi_insn *insn, unsigned int *data)
-{
-	return -EINVAL;
-}
-
-/**
- * comedi_readback_insn_read() - A generic (*insn_read) for subdevice readback.
- * @dev: comedi_device struct
- * @s: comedi_subdevice struct
- * @insn: comedi_insn struct
- * @data: pointer to return the readback data
- */
-int comedi_readback_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	if (!s->readback)
-		return -EINVAL;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = s->readback[chan];
-
-	return insn->n;
-}
-EXPORT_SYMBOL_GPL(comedi_readback_insn_read);
-
-/**
- * comedi_timeout() - busy-wait for a driver condition to occur.
- * @dev: comedi_device struct
- * @s: comedi_subdevice struct
- * @insn: comedi_insn struct
- * @cb: callback to check for the condition
- * @context: private context from the driver
- */
-int comedi_timeout(struct comedi_device *dev,
-		   struct comedi_subdevice *s,
-		   struct comedi_insn *insn,
-		   int (*cb)(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned long context),
-		   unsigned long context)
-{
-	unsigned long timeout = jiffies + msecs_to_jiffies(COMEDI_TIMEOUT_MS);
-	int ret;
-
-	while (time_before(jiffies, timeout)) {
-		ret = cb(dev, s, insn, context);
-		if (ret != -EBUSY)
-			return ret;	/* success (0) or non EBUSY errno */
-		cpu_relax();
-	}
-	return -ETIMEDOUT;
-}
-EXPORT_SYMBOL_GPL(comedi_timeout);
-
-/**
- * comedi_dio_insn_config() - boilerplate (*insn_config) for DIO subdevices.
- * @dev: comedi_device struct
- * @s: comedi_subdevice struct
- * @insn: comedi_insn struct
- * @data: parameters for the @insn
- * @mask: io_bits mask for grouped channels
- */
-int comedi_dio_insn_config(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned int *data,
-			   unsigned int mask)
-{
-	unsigned int chan_mask = 1 << CR_CHAN(insn->chanspec);
-
-	if (!mask)
-		mask = chan_mask;
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIO_INPUT:
-		s->io_bits &= ~mask;
-		break;
-
-	case INSN_CONFIG_DIO_OUTPUT:
-		s->io_bits |= mask;
-		break;
-
-	case INSN_CONFIG_DIO_QUERY:
-		data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT;
-		return insn->n;
-
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_dio_insn_config);
-
-/**
- * comedi_dio_update_state() - update the internal state of DIO subdevices.
- * @s: comedi_subdevice struct
- * @data: the channel mask and bits to update
- */
-unsigned int comedi_dio_update_state(struct comedi_subdevice *s,
-				     unsigned int *data)
-{
-	unsigned int chanmask = (s->n_chan < 32) ? ((1 << s->n_chan) - 1)
-						 : 0xffffffff;
-	unsigned int mask = data[0] & chanmask;
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-	}
-
-	return mask;
-}
-EXPORT_SYMBOL_GPL(comedi_dio_update_state);
-
-/**
- * comedi_bytes_per_scan - get length of asynchronous command "scan" in bytes
- * @s: comedi_subdevice struct
- *
- * Determines the overall scan length according to the subdevice type and the
- * number of channels in the scan.
- *
- * For digital input, output or input/output subdevices, samples for multiple
- * channels are assumed to be packed into one or more unsigned short or
- * unsigned int values according to the subdevice's SDF_LSAMPL flag.  For other
- * types of subdevice, samples are assumed to occupy a whole unsigned short or
- * unsigned int according to the SDF_LSAMPL flag.
- *
- * Returns the overall scan length in bytes.
- */
-unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int num_samples;
-	unsigned int bits_per_sample;
-
-	switch (s->type) {
-	case COMEDI_SUBD_DI:
-	case COMEDI_SUBD_DO:
-	case COMEDI_SUBD_DIO:
-		bits_per_sample = 8 * comedi_bytes_per_sample(s);
-		num_samples = DIV_ROUND_UP(cmd->scan_end_arg, bits_per_sample);
-		break;
-	default:
-		num_samples = cmd->scan_end_arg;
-		break;
-	}
-	return comedi_samples_to_bytes(s, num_samples);
-}
-EXPORT_SYMBOL_GPL(comedi_bytes_per_scan);
-
-/**
- * comedi_nscans_left - return the number of scans left in the command
- * @s: comedi_subdevice struct
- * @nscans: the expected number of scans
- *
- * If nscans is 0, the number of scans available in the async buffer will be
- * used. Otherwise the expected number of scans will be used.
- *
- * If the async command has a stop_src of TRIG_COUNT, the nscans will be
- * checked against the number of scans left in the command.
- *
- * The return value will then be either the expected number of scans or the
- * number of scans remaining in the command.
- */
-unsigned int comedi_nscans_left(struct comedi_subdevice *s,
-				unsigned int nscans)
-{
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-
-	if (nscans == 0) {
-		unsigned int nbytes = comedi_buf_read_n_available(s);
-
-		nscans = nbytes / comedi_bytes_per_scan(s);
-	}
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		unsigned int scans_left = 0;
-
-		if (async->scans_done < cmd->stop_arg)
-			scans_left = cmd->stop_arg - async->scans_done;
-
-		if (nscans > scans_left)
-			nscans = scans_left;
-	}
-	return nscans;
-}
-EXPORT_SYMBOL_GPL(comedi_nscans_left);
-
-/**
- * comedi_nsamples_left - return the number of samples left in the command
- * @s: comedi_subdevice struct
- * @nsamples: the expected number of samples
- *
- * Returns the expected number of samples of the number of samples remaining
- * in the command.
- */
-unsigned int comedi_nsamples_left(struct comedi_subdevice *s,
-				  unsigned int nsamples)
-{
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		/* +1 to force comedi_nscans_left() to return the scans left */
-		unsigned int nscans = (nsamples / cmd->scan_end_arg) + 1;
-		unsigned int scans_left = comedi_nscans_left(s, nscans);
-		unsigned int scan_pos =
-		    comedi_bytes_to_samples(s, async->scan_progress);
-		unsigned long long samples_left = 0;
-
-		if (scans_left) {
-			samples_left = ((unsigned long long)scans_left *
-					cmd->scan_end_arg) - scan_pos;
-		}
-
-		if (samples_left < nsamples)
-			nsamples = samples_left;
-	}
-	return nsamples;
-}
-EXPORT_SYMBOL_GPL(comedi_nsamples_left);
-
-/**
- * comedi_inc_scan_progress - update scan progress in asynchronous command
- * @s: comedi_subdevice struct
- * @num_bytes: amount of data in bytes to increment scan progress
- *
- * Increments the scan progress by the number of bytes specified by num_bytes.
- * If the scan progress reaches or exceeds the scan length in bytes, reduce
- * it modulo the scan length in bytes and set the "end of scan" asynchronous
- * event flag to be processed later.
- */
-void comedi_inc_scan_progress(struct comedi_subdevice *s,
-			      unsigned int num_bytes)
-{
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int scan_length = comedi_bytes_per_scan(s);
-
-	/* track the 'cur_chan' for non-SDF_PACKED subdevices */
-	if (!(s->subdev_flags & SDF_PACKED)) {
-		async->cur_chan += comedi_bytes_to_samples(s, num_bytes);
-		async->cur_chan %= cmd->chanlist_len;
-	}
-
-	async->scan_progress += num_bytes;
-	if (async->scan_progress >= scan_length) {
-		unsigned int nscans = async->scan_progress / scan_length;
-
-		if (async->scans_done < (UINT_MAX - nscans))
-			async->scans_done += nscans;
-		else
-			async->scans_done = UINT_MAX;
-
-		async->scan_progress %= scan_length;
-		async->events |= COMEDI_CB_EOS;
-	}
-}
-EXPORT_SYMBOL_GPL(comedi_inc_scan_progress);
-
-/**
- * comedi_handle_events - handle events and possibly stop acquisition
- * @dev: comedi_device struct
- * @s: comedi_subdevice struct
- *
- * Handles outstanding asynchronous acquisition event flags associated
- * with the subdevice.  Call the subdevice's "->cancel()" handler if the
- * "end of acquisition", "error" or "overflow" event flags are set in order
- * to stop the acquisition at the driver level.
- *
- * Calls comedi_event() to further process the event flags, which may mark
- * the asynchronous command as no longer running, possibly terminated with
- * an error, and may wake up tasks.
- *
- * Return a bit-mask of the handled events.
- */
-unsigned int comedi_handle_events(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	unsigned int events = s->async->events;
-
-	if (events == 0)
-		return events;
-
-	if (events & COMEDI_CB_CANCEL_MASK)
-		s->cancel(dev, s);
-
-	comedi_event(dev, s);
-
-	return events;
-}
-EXPORT_SYMBOL_GPL(comedi_handle_events);
-
-static int insn_rw_emulate_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	struct comedi_insn new_insn;
-	int ret;
-	static const unsigned channels_per_bitfield = 32;
-
-	unsigned chan = CR_CHAN(insn->chanspec);
-	const unsigned base_bitfield_channel =
-	    (chan < channels_per_bitfield) ? 0 : chan;
-	unsigned int new_data[2];
-
-	memset(new_data, 0, sizeof(new_data));
-	memset(&new_insn, 0, sizeof(new_insn));
-	new_insn.insn = INSN_BITS;
-	new_insn.chanspec = base_bitfield_channel;
-	new_insn.n = 2;
-	new_insn.subdev = insn->subdev;
-
-	if (insn->insn == INSN_WRITE) {
-		if (!(s->subdev_flags & SDF_WRITABLE))
-			return -EINVAL;
-		new_data[0] = 1 << (chan - base_bitfield_channel); /* mask */
-		new_data[1] = data[0] ? (1 << (chan - base_bitfield_channel))
-			      : 0; /* bits */
-	}
-
-	ret = s->insn_bits(dev, s, &new_insn, new_data);
-	if (ret < 0)
-		return ret;
-
-	if (insn->insn == INSN_READ)
-		data[0] = (new_data[1] >> (chan - base_bitfield_channel)) & 1;
-
-	return 1;
-}
-
-static int __comedi_device_postconfig_async(struct comedi_device *dev,
-					    struct comedi_subdevice *s)
-{
-	struct comedi_async *async;
-	unsigned int buf_size;
-	int ret;
-
-	if ((s->subdev_flags & (SDF_CMD_READ | SDF_CMD_WRITE)) == 0) {
-		dev_warn(dev->class_dev,
-			 "async subdevices must support SDF_CMD_READ or SDF_CMD_WRITE\n");
-		return -EINVAL;
-	}
-	if (!s->do_cmdtest) {
-		dev_warn(dev->class_dev,
-			 "async subdevices must have a do_cmdtest() function\n");
-		return -EINVAL;
-	}
-
-	async = kzalloc(sizeof(*async), GFP_KERNEL);
-	if (!async)
-		return -ENOMEM;
-
-	init_waitqueue_head(&async->wait_head);
-	s->async = async;
-
-	async->max_bufsize = comedi_default_buf_maxsize_kb * 1024;
-	buf_size = comedi_default_buf_size_kb * 1024;
-	if (buf_size > async->max_bufsize)
-		buf_size = async->max_bufsize;
-
-	if (comedi_buf_alloc(dev, s, buf_size) < 0) {
-		dev_warn(dev->class_dev, "Buffer allocation failed\n");
-		return -ENOMEM;
-	}
-	if (s->buf_change) {
-		ret = s->buf_change(dev, s);
-		if (ret < 0)
-			return ret;
-	}
-
-	comedi_alloc_subdevice_minor(s);
-
-	return 0;
-}
-
-static int __comedi_device_postconfig(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-
-		if (s->type == COMEDI_SUBD_UNUSED)
-			continue;
-
-		if (s->type == COMEDI_SUBD_DO) {
-			if (s->n_chan < 32)
-				s->io_bits = (1 << s->n_chan) - 1;
-			else
-				s->io_bits = 0xffffffff;
-		}
-
-		if (s->len_chanlist == 0)
-			s->len_chanlist = 1;
-
-		if (s->do_cmd) {
-			ret = __comedi_device_postconfig_async(dev, s);
-			if (ret)
-				return ret;
-		}
-
-		if (!s->range_table && !s->range_table_list)
-			s->range_table = &range_unknown;
-
-		if (!s->insn_read && s->insn_bits)
-			s->insn_read = insn_rw_emulate_bits;
-		if (!s->insn_write && s->insn_bits)
-			s->insn_write = insn_rw_emulate_bits;
-
-		if (!s->insn_read)
-			s->insn_read = insn_inval;
-		if (!s->insn_write)
-			s->insn_write = insn_inval;
-		if (!s->insn_bits)
-			s->insn_bits = insn_inval;
-		if (!s->insn_config)
-			s->insn_config = insn_inval;
-
-		if (!s->poll)
-			s->poll = poll_invalid;
-	}
-
-	return 0;
-}
-
-/* do a little post-config cleanup */
-static int comedi_device_postconfig(struct comedi_device *dev)
-{
-	int ret;
-
-	ret = __comedi_device_postconfig(dev);
-	if (ret < 0)
-		return ret;
-	down_write(&dev->attach_lock);
-	dev->attached = true;
-	up_write(&dev->attach_lock);
-	return 0;
-}
-
-/*
- * Generic recognize function for drivers that register their supported
- * board names.
- *
- * 'driv->board_name' points to a 'const char *' member within the
- * zeroth element of an array of some private board information
- * structure, say 'struct foo_board' containing a member 'const char
- * *board_name' that is initialized to point to a board name string that
- * is one of the candidates matched against this function's 'name'
- * parameter.
- *
- * 'driv->offset' is the size of the private board information
- * structure, say 'sizeof(struct foo_board)', and 'driv->num_names' is
- * the length of the array of private board information structures.
- *
- * If one of the board names in the array of private board information
- * structures matches the name supplied to this function, the function
- * returns a pointer to the pointer to the board name, otherwise it
- * returns NULL.  The return value ends up in the 'board_ptr' member of
- * a 'struct comedi_device' that the low-level comedi driver's
- * 'attach()' hook can convert to a point to a particular element of its
- * array of private board information structures by subtracting the
- * offset of the member that points to the board name.  (No subtraction
- * is required if the board name pointer is the first member of the
- * private board information structure, which is generally the case.)
- */
-static void *comedi_recognize(struct comedi_driver *driv, const char *name)
-{
-	char **name_ptr = (char **)driv->board_name;
-	int i;
-
-	for (i = 0; i < driv->num_names; i++) {
-		if (strcmp(*name_ptr, name) == 0)
-			return name_ptr;
-		name_ptr = (void *)name_ptr + driv->offset;
-	}
-
-	return NULL;
-}
-
-static void comedi_report_boards(struct comedi_driver *driv)
-{
-	unsigned int i;
-	const char *const *name_ptr;
-
-	pr_info("comedi: valid board names for %s driver are:\n",
-		driv->driver_name);
-
-	name_ptr = driv->board_name;
-	for (i = 0; i < driv->num_names; i++) {
-		pr_info(" %s\n", *name_ptr);
-		name_ptr = (const char **)((char *)name_ptr + driv->offset);
-	}
-
-	if (driv->num_names == 0)
-		pr_info(" %s\n", driv->driver_name);
-}
-
-/**
- * comedi_load_firmware() - Request and load firmware for a device.
- * @dev: comedi_device struct
- * @hw_device: device struct for the comedi_device
- * @name: the name of the firmware image
- * @cb: callback to the upload the firmware image
- * @context: private context from the driver
- */
-int comedi_load_firmware(struct comedi_device *dev,
-			 struct device *device,
-			 const char *name,
-			 int (*cb)(struct comedi_device *dev,
-				   const u8 *data, size_t size,
-				   unsigned long context),
-			 unsigned long context)
-{
-	const struct firmware *fw;
-	int ret;
-
-	if (!cb)
-		return -EINVAL;
-
-	ret = request_firmware(&fw, name, device);
-	if (ret == 0) {
-		ret = cb(dev, fw->data, fw->size, context);
-		release_firmware(fw);
-	}
-
-	return ret < 0 ? ret : 0;
-}
-EXPORT_SYMBOL_GPL(comedi_load_firmware);
-
-/**
- * __comedi_request_region() - Request an I/O reqion for a legacy driver.
- * @dev: comedi_device struct
- * @start: base address of the I/O reqion
- * @len: length of the I/O region
- */
-int __comedi_request_region(struct comedi_device *dev,
-			    unsigned long start, unsigned long len)
-{
-	if (!start) {
-		dev_warn(dev->class_dev,
-			 "%s: a I/O base address must be specified\n",
-			 dev->board_name);
-		return -EINVAL;
-	}
-
-	if (!request_region(start, len, dev->board_name)) {
-		dev_warn(dev->class_dev, "%s: I/O port conflict (%#lx,%lu)\n",
-			 dev->board_name, start, len);
-		return -EIO;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(__comedi_request_region);
-
-/**
- * comedi_request_region() - Request an I/O reqion for a legacy driver.
- * @dev: comedi_device struct
- * @start: base address of the I/O reqion
- * @len: length of the I/O region
- */
-int comedi_request_region(struct comedi_device *dev,
-			  unsigned long start, unsigned long len)
-{
-	int ret;
-
-	ret = __comedi_request_region(dev, start, len);
-	if (ret == 0) {
-		dev->iobase = start;
-		dev->iolen = len;
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(comedi_request_region);
-
-/**
- * comedi_legacy_detach() - A generic (*detach) function for legacy drivers.
- * @dev: comedi_device struct
- */
-void comedi_legacy_detach(struct comedi_device *dev)
-{
-	if (dev->irq) {
-		free_irq(dev->irq, dev);
-		dev->irq = 0;
-	}
-	if (dev->iobase && dev->iolen) {
-		release_region(dev->iobase, dev->iolen);
-		dev->iobase = 0;
-		dev->iolen = 0;
-	}
-}
-EXPORT_SYMBOL_GPL(comedi_legacy_detach);
-
-int comedi_device_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct comedi_driver *driv;
-	int ret;
-
-	if (dev->attached)
-		return -EBUSY;
-
-	mutex_lock(&comedi_drivers_list_lock);
-	for (driv = comedi_drivers; driv; driv = driv->next) {
-		if (!try_module_get(driv->module))
-			continue;
-		if (driv->num_names) {
-			dev->board_ptr = comedi_recognize(driv, it->board_name);
-			if (dev->board_ptr)
-				break;
-		} else if (strcmp(driv->driver_name, it->board_name) == 0) {
-			break;
-		}
-		module_put(driv->module);
-	}
-	if (!driv) {
-		/*  recognize has failed if we get here */
-		/*  report valid board names before returning error */
-		for (driv = comedi_drivers; driv; driv = driv->next) {
-			if (!try_module_get(driv->module))
-				continue;
-			comedi_report_boards(driv);
-			module_put(driv->module);
-		}
-		ret = -EIO;
-		goto out;
-	}
-	if (!driv->attach) {
-		/* driver does not support manual configuration */
-		dev_warn(dev->class_dev,
-			 "driver '%s' does not support attach using comedi_config\n",
-			 driv->driver_name);
-		module_put(driv->module);
-		ret = -EIO;
-		goto out;
-	}
-	dev->driver = driv;
-	dev->board_name = dev->board_ptr ? *(const char **)dev->board_ptr
-					 : dev->driver->driver_name;
-	ret = driv->attach(dev, it);
-	if (ret >= 0)
-		ret = comedi_device_postconfig(dev);
-	if (ret < 0) {
-		comedi_device_detach(dev);
-		module_put(driv->module);
-	}
-	/* On success, the driver module count has been incremented. */
-out:
-	mutex_unlock(&comedi_drivers_list_lock);
-	return ret;
-}
-
-int comedi_auto_config(struct device *hardware_device,
-		       struct comedi_driver *driver, unsigned long context)
-{
-	struct comedi_device *dev;
-	int ret;
-
-	if (!hardware_device) {
-		pr_warn("BUG! comedi_auto_config called with NULL hardware_device\n");
-		return -EINVAL;
-	}
-	if (!driver) {
-		dev_warn(hardware_device,
-			 "BUG! comedi_auto_config called with NULL comedi driver\n");
-		return -EINVAL;
-	}
-
-	if (!driver->auto_attach) {
-		dev_warn(hardware_device,
-			 "BUG! comedi driver '%s' has no auto_attach handler\n",
-			 driver->driver_name);
-		return -EINVAL;
-	}
-
-	dev = comedi_alloc_board_minor(hardware_device);
-	if (IS_ERR(dev)) {
-		dev_warn(hardware_device,
-			 "driver '%s' could not create device.\n",
-			 driver->driver_name);
-		return PTR_ERR(dev);
-	}
-	/* Note: comedi_alloc_board_minor() locked dev->mutex. */
-
-	dev->driver = driver;
-	dev->board_name = dev->driver->driver_name;
-	ret = driver->auto_attach(dev, context);
-	if (ret >= 0)
-		ret = comedi_device_postconfig(dev);
-	mutex_unlock(&dev->mutex);
-
-	if (ret < 0) {
-		dev_warn(hardware_device,
-			 "driver '%s' failed to auto-configure device.\n",
-			 driver->driver_name);
-		comedi_release_hardware_device(hardware_device);
-	} else {
-		/*
-		 * class_dev should be set properly here
-		 *  after a successful auto config
-		 */
-		dev_info(dev->class_dev,
-			 "driver '%s' has successfully auto-configured '%s'.\n",
-			 driver->driver_name, dev->board_name);
-	}
-	return ret;
-}
-EXPORT_SYMBOL_GPL(comedi_auto_config);
-
-void comedi_auto_unconfig(struct device *hardware_device)
-{
-	if (!hardware_device)
-		return;
-	comedi_release_hardware_device(hardware_device);
-}
-EXPORT_SYMBOL_GPL(comedi_auto_unconfig);
-
-int comedi_driver_register(struct comedi_driver *driver)
-{
-	mutex_lock(&comedi_drivers_list_lock);
-	driver->next = comedi_drivers;
-	comedi_drivers = driver;
-	mutex_unlock(&comedi_drivers_list_lock);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_driver_register);
-
-void comedi_driver_unregister(struct comedi_driver *driver)
-{
-	struct comedi_driver *prev;
-	int i;
-
-	/* unlink the driver */
-	mutex_lock(&comedi_drivers_list_lock);
-	if (comedi_drivers == driver) {
-		comedi_drivers = driver->next;
-	} else {
-		for (prev = comedi_drivers; prev->next; prev = prev->next) {
-			if (prev->next == driver) {
-				prev->next = driver->next;
-				break;
-			}
-		}
-	}
-	mutex_unlock(&comedi_drivers_list_lock);
-
-	/* check for devices using this driver */
-	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) {
-		struct comedi_device *dev = comedi_dev_get_from_minor(i);
-
-		if (!dev)
-			continue;
-
-		mutex_lock(&dev->mutex);
-		if (dev->attached && dev->driver == driver) {
-			if (dev->use_count)
-				dev_warn(dev->class_dev,
-					 "BUG! detaching device with use_count=%d\n",
-					 dev->use_count);
-			comedi_device_detach(dev);
-		}
-		mutex_unlock(&dev->mutex);
-		comedi_dev_put(dev);
-	}
-}
-EXPORT_SYMBOL_GPL(comedi_driver_unregister);
diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c
deleted file mode 100644
index b79d3764a8a0..000000000000
--- a/drivers/staging/comedi/drivers/8255.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * comedi/drivers/8255.c
- * Driver for 8255
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: 8255
- * Description: generic 8255 support
- * Devices: [standard] 8255 (8255)
- * Author: ds
- * Status: works
- * Updated: Fri,  7 Jun 2002 12:56:45 -0700
- *
- * The classic in digital I/O.  The 8255 appears in Comedi as a single
- * digital I/O subdevice with 24 channels.  The channel 0 corresponds
- * to the 8255's port A, bit 0; channel 23 corresponds to port C, bit
- * 7.  Direction configuration is done in blocks, with channels 0-7,
- * 8-15, 16-19, and 20-23 making up the 4 blocks.  The only 8255 mode
- * supported is mode 0.
- *
- * You should enable compilation this driver if you plan to use a board
- * that has an 8255 chip.  For multifunction boards, the main driver will
- * configure the 8255 subdevice automatically.
- *
- * This driver also works independently with ISA and PCI cards that
- * directly map the 8255 registers to I/O ports, including cards with
- * multiple 8255 chips.  To configure the driver for such a card, the
- * option list should be a list of the I/O port bases for each of the
- * 8255 chips.  For example,
- *
- *   comedi_config /dev/comedi0 8255 0x200,0x204,0x208,0x20c
- *
- * Note that most PCI 8255 boards do NOT work with this driver, and
- * need a separate driver as a wrapper.  For those that do work, the
- * I/O port base address can be found in the output of 'lspci -v'.
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include "8255.h"
-
-static int dev_8255_attach(struct comedi_device *dev,
-			   struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	unsigned long iobase;
-	int ret;
-	int i;
-
-	for (i = 0; i < COMEDI_NDEVCONFOPTS; i++) {
-		iobase = it->options[i];
-		if (!iobase)
-			break;
-	}
-	if (i == 0) {
-		dev_warn(dev->class_dev, "no devices specified\n");
-		return -EINVAL;
-	}
-
-	ret = comedi_alloc_subdevices(dev, i);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		iobase = it->options[i];
-
-		/*
-		 * __comedi_request_region() does not set dev->iobase.
-		 *
-		 * For 8255 devices that are manually attached using
-		 * comedi_config, the 'iobase' is the actual I/O port
-		 * base address of the chip.
-		 */
-		ret = __comedi_request_region(dev, iobase, I8255_SIZE);
-		if (ret) {
-			s->type = COMEDI_SUBD_UNUSED;
-		} else {
-			ret = subdev_8255_init(dev, s, NULL, iobase);
-			if (ret) {
-				/*
-				 * Release the I/O port region here, as the
-				 * "detach" handler cannot find it.
-				 */
-				release_region(iobase, I8255_SIZE);
-				s->type = COMEDI_SUBD_UNUSED;
-				return ret;
-			}
-		}
-	}
-
-	return 0;
-}
-
-static void dev_8255_detach(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-	int i;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		if (s->type != COMEDI_SUBD_UNUSED) {
-			unsigned long regbase = subdev_8255_regbase(s);
-
-			release_region(regbase, I8255_SIZE);
-		}
-	}
-}
-
-static struct comedi_driver dev_8255_driver = {
-	.driver_name	= "8255",
-	.module		= THIS_MODULE,
-	.attach		= dev_8255_attach,
-	.detach		= dev_8255_detach,
-};
-module_comedi_driver(dev_8255_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for standalone 8255 devices");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/8255.h b/drivers/staging/comedi/drivers/8255.h
deleted file mode 100644
index 41823de69b77..000000000000
--- a/drivers/staging/comedi/drivers/8255.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * module/8255.h
- * Header file for 8255
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _8255_H
-#define _8255_H
-
-#define I8255_SIZE		0x04
-
-#define I8255_DATA_A_REG	0x00
-#define I8255_DATA_B_REG	0x01
-#define I8255_DATA_C_REG	0x02
-#define I8255_CTRL_REG		0x03
-#define I8255_CTRL_C_LO_IO	(1 << 0)
-#define I8255_CTRL_B_IO		(1 << 1)
-#define I8255_CTRL_B_MODE	(1 << 2)
-#define I8255_CTRL_C_HI_IO	(1 << 3)
-#define I8255_CTRL_A_IO		(1 << 4)
-#define I8255_CTRL_A_MODE(x)	((x) << 5)
-#define I8255_CTRL_CW		(1 << 7)
-
-struct comedi_device;
-struct comedi_subdevice;
-
-int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s,
-		     int (*io)(struct comedi_device *dev, int dir, int port,
-			       int data, unsigned long regbase),
-		     unsigned long regbase);
-
-int subdev_8255_mm_init(struct comedi_device *dev, struct comedi_subdevice *s,
-			int (*io)(struct comedi_device *dev, int dir, int port,
-				  int data, unsigned long regbase),
-			unsigned long regbase);
-
-unsigned long subdev_8255_regbase(struct comedi_subdevice *s);
-
-#endif
diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c
deleted file mode 100644
index bb9854b56807..000000000000
--- a/drivers/staging/comedi/drivers/8255_pci.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * COMEDI driver for generic PCI based 8255 digital i/o boards
- * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * Based on the tested adl_pci7296 driver written by:
- *	Jon Grierson <jd@renko.co.uk>
- * and the experimental cb_pcidio driver written by:
- *	Yoshiya Matsuzaka
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: 8255_pci
- * Description: Generic PCI based 8255 Digital I/O boards
- * Devices: [ADLink] PCI-7224 (adl_pci-7224), PCI-7248 (adl_pci-7248),
- *   PCI-7296 (adl_pci-7296),
- *   [Measurement Computing] PCI-DIO24 (cb_pci-dio24),
- *   PCI-DIO24H (cb_pci-dio24h), PCI-DIO48H (cb_pci-dio48h),
- *   PCI-DIO96H (cb_pci-dio96h),
- *   [National Instruments] PCI-DIO-96 (ni_pci-dio-96),
- *   PCI-DIO-96B (ni_pci-dio-96b), PXI-6508 (ni_pxi-6508),
- *   PCI-6503 (ni_pci-6503), PCI-6503B (ni_pci-6503b),
- *   PCI-6503X (ni_pci-6503x), PXI-6503 (ni_pxi-6503)
- * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
- * Updated: Wed, 12 Sep 2012 11:52:01 -0700
- * Status: untested
- *
- * These boards have one or more 8255 digital I/O chips, each of which
- * is supported as a separate 24-channel DIO subdevice.
- *
- * Boards with 24 DIO channels (1 DIO subdevice):
- *
- *   PCI-7224, PCI-DIO24, PCI-DIO24H, PCI-6503, PCI-6503B, PCI-6503X,
- *   PXI-6503
- *
- * Boards with 48 DIO channels (2 DIO subdevices):
- *
- *   PCI-7248, PCI-DIO48H
- *
- * Boards with 96 DIO channels (4 DIO subdevices):
- *
- *   PCI-7296, PCI-DIO96H, PCI-DIO-96, PCI-DIO-96B, PXI-6508
- *
- * Some of these boards also have an 8254 programmable timer/counter
- * chip.  This chip is not currently supported by this driver.
- *
- * Interrupt support for these boards is also not currently supported.
- *
- * Configuration Options: not applicable, uses PCI auto config.
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-#include "8255.h"
-
-enum pci_8255_boardid {
-	BOARD_ADLINK_PCI7224,
-	BOARD_ADLINK_PCI7248,
-	BOARD_ADLINK_PCI7296,
-	BOARD_CB_PCIDIO24,
-	BOARD_CB_PCIDIO24H,
-	BOARD_CB_PCIDIO48H_OLD,
-	BOARD_CB_PCIDIO48H_NEW,
-	BOARD_CB_PCIDIO96H,
-	BOARD_NI_PCIDIO96,
-	BOARD_NI_PCIDIO96B,
-	BOARD_NI_PXI6508,
-	BOARD_NI_PCI6503,
-	BOARD_NI_PCI6503B,
-	BOARD_NI_PCI6503X,
-	BOARD_NI_PXI_6503,
-};
-
-struct pci_8255_boardinfo {
-	const char *name;
-	int dio_badr;
-	int n_8255;
-	unsigned int has_mite:1;
-};
-
-static const struct pci_8255_boardinfo pci_8255_boards[] = {
-	[BOARD_ADLINK_PCI7224] = {
-		.name		= "adl_pci-7224",
-		.dio_badr	= 2,
-		.n_8255		= 1,
-	},
-	[BOARD_ADLINK_PCI7248] = {
-		.name		= "adl_pci-7248",
-		.dio_badr	= 2,
-		.n_8255		= 2,
-	},
-	[BOARD_ADLINK_PCI7296] = {
-		.name		= "adl_pci-7296",
-		.dio_badr	= 2,
-		.n_8255		= 4,
-	},
-	[BOARD_CB_PCIDIO24] = {
-		.name		= "cb_pci-dio24",
-		.dio_badr	= 2,
-		.n_8255		= 1,
-	},
-	[BOARD_CB_PCIDIO24H] = {
-		.name		= "cb_pci-dio24h",
-		.dio_badr	= 2,
-		.n_8255		= 1,
-	},
-	[BOARD_CB_PCIDIO48H_OLD] = {
-		.name		= "cb_pci-dio48h",
-		.dio_badr	= 1,
-		.n_8255		= 2,
-	},
-	[BOARD_CB_PCIDIO48H_NEW] = {
-		.name		= "cb_pci-dio48h",
-		.dio_badr	= 2,
-		.n_8255		= 2,
-	},
-	[BOARD_CB_PCIDIO96H] = {
-		.name		= "cb_pci-dio96h",
-		.dio_badr	= 2,
-		.n_8255		= 4,
-	},
-	[BOARD_NI_PCIDIO96] = {
-		.name		= "ni_pci-dio-96",
-		.dio_badr	= 1,
-		.n_8255		= 4,
-		.has_mite	= 1,
-	},
-	[BOARD_NI_PCIDIO96B] = {
-		.name		= "ni_pci-dio-96b",
-		.dio_badr	= 1,
-		.n_8255		= 4,
-		.has_mite	= 1,
-	},
-	[BOARD_NI_PXI6508] = {
-		.name		= "ni_pxi-6508",
-		.dio_badr	= 1,
-		.n_8255		= 4,
-		.has_mite	= 1,
-	},
-	[BOARD_NI_PCI6503] = {
-		.name		= "ni_pci-6503",
-		.dio_badr	= 1,
-		.n_8255		= 1,
-		.has_mite	= 1,
-	},
-	[BOARD_NI_PCI6503B] = {
-		.name		= "ni_pci-6503b",
-		.dio_badr	= 1,
-		.n_8255		= 1,
-		.has_mite	= 1,
-	},
-	[BOARD_NI_PCI6503X] = {
-		.name		= "ni_pci-6503x",
-		.dio_badr	= 1,
-		.n_8255		= 1,
-		.has_mite	= 1,
-	},
-	[BOARD_NI_PXI_6503] = {
-		.name		= "ni_pxi-6503",
-		.dio_badr	= 1,
-		.n_8255		= 1,
-		.has_mite	= 1,
-	},
-};
-
-/* ripped from mite.h and mite_setup2() to avoid mite dependency */
-#define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
-#define WENAB		(1 << 7) /* window enable */
-
-static int pci_8255_mite_init(struct pci_dev *pcidev)
-{
-	void __iomem *mite_base;
-	u32 main_phys_addr;
-
-	/* ioremap the MITE registers (BAR 0) temporarily */
-	mite_base = pci_ioremap_bar(pcidev, 0);
-	if (!mite_base)
-		return -ENOMEM;
-
-	/* set data window to main registers (BAR 1) */
-	main_phys_addr = pci_resource_start(pcidev, 1);
-	writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR);
-
-	/* finished with MITE registers */
-	iounmap(mite_base);
-	return 0;
-}
-
-static int pci_8255_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct pci_8255_boardinfo *board = NULL;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	if (context < ARRAY_SIZE(pci_8255_boards))
-		board = &pci_8255_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	if (board->has_mite) {
-		ret = pci_8255_mite_init(pcidev);
-		if (ret)
-			return ret;
-	}
-
-	if ((pci_resource_flags(pcidev, board->dio_badr) & IORESOURCE_MEM)) {
-		dev->mmio = pci_ioremap_bar(pcidev, board->dio_badr);
-		if (!dev->mmio)
-			return -ENOMEM;
-	} else {
-		dev->iobase = pci_resource_start(pcidev, board->dio_badr);
-	}
-
-	/*
-	 * One, two, or four subdevices are setup by this driver depending
-	 * on the number of channels provided by the board. Each subdevice
-	 * has 24 channels supported by the 8255 module.
-	 */
-	ret = comedi_alloc_subdevices(dev, board->n_8255);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < board->n_8255; i++) {
-		s = &dev->subdevices[i];
-		if (dev->mmio)
-			ret = subdev_8255_mm_init(dev, s, NULL, i * I8255_SIZE);
-		else
-			ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver pci_8255_driver = {
-	.driver_name	= "8255_pci",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci_8255_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int pci_8255_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &pci_8255_driver, id->driver_data);
-}
-
-static const struct pci_device_id pci_8255_pci_table[] = {
-	{ PCI_VDEVICE(ADLINK, 0x7224), BOARD_ADLINK_PCI7224 },
-	{ PCI_VDEVICE(ADLINK, 0x7248), BOARD_ADLINK_PCI7248 },
-	{ PCI_VDEVICE(ADLINK, 0x7296), BOARD_ADLINK_PCI7296 },
-	{ PCI_VDEVICE(CB, 0x0028), BOARD_CB_PCIDIO24 },
-	{ PCI_VDEVICE(CB, 0x0014), BOARD_CB_PCIDIO24H },
-	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_CB, 0x000b, 0x0000, 0x0000),
-	  .driver_data = BOARD_CB_PCIDIO48H_OLD },
-	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_CB, 0x000b, PCI_VENDOR_ID_CB, 0x000b),
-	  .driver_data = BOARD_CB_PCIDIO48H_NEW },
-	{ PCI_VDEVICE(CB, 0x0017), BOARD_CB_PCIDIO96H },
-	{ PCI_VDEVICE(NI, 0x0160), BOARD_NI_PCIDIO96 },
-	{ PCI_VDEVICE(NI, 0x1630), BOARD_NI_PCIDIO96B },
-	{ PCI_VDEVICE(NI, 0x13c0), BOARD_NI_PXI6508 },
-	{ PCI_VDEVICE(NI, 0x0400), BOARD_NI_PCI6503 },
-	{ PCI_VDEVICE(NI, 0x1250), BOARD_NI_PCI6503B },
-	{ PCI_VDEVICE(NI, 0x17d0), BOARD_NI_PCI6503X },
-	{ PCI_VDEVICE(NI, 0x1800), BOARD_NI_PXI_6503 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, pci_8255_pci_table);
-
-static struct pci_driver pci_8255_pci_driver = {
-	.name		= "8255_pci",
-	.id_table	= pci_8255_pci_table,
-	.probe		= pci_8255_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(pci_8255_driver, pci_8255_pci_driver);
-
-MODULE_DESCRIPTION("COMEDI - Generic PCI based 8255 Digital I/O boards");
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/Makefile b/drivers/staging/comedi/drivers/Makefile
deleted file mode 100644
index 5764dc9a6893..000000000000
--- a/drivers/staging/comedi/drivers/Makefile
+++ /dev/null
@@ -1,146 +0,0 @@
-# Makefile for individual comedi drivers
-#
-ccflags-$(CONFIG_COMEDI_DEBUG)		:= -DDEBUG
-
-# Comedi "helper" modules
-obj-$(CONFIG_COMEDI_8254)		+= comedi_8254.o
-obj-$(CONFIG_COMEDI_ISADMA)		+= comedi_isadma.o
-
-# Comedi misc drivers
-obj-$(CONFIG_COMEDI_BOND)		+= comedi_bond.o
-obj-$(CONFIG_COMEDI_TEST)		+= comedi_test.o
-obj-$(CONFIG_COMEDI_PARPORT)		+= comedi_parport.o
-obj-$(CONFIG_COMEDI_SERIAL2002)		+= serial2002.o
-
-# Comedi ISA drivers
-obj-$(CONFIG_COMEDI_AMPLC_DIO200_ISA)	+= amplc_dio200.o
-obj-$(CONFIG_COMEDI_AMPLC_PC236_ISA)	+= amplc_pc236.o
-obj-$(CONFIG_COMEDI_AMPLC_PC263_ISA)	+= amplc_pc263.o
-obj-$(CONFIG_COMEDI_PCL711)		+= pcl711.o
-obj-$(CONFIG_COMEDI_PCL724)		+= pcl724.o
-obj-$(CONFIG_COMEDI_PCL726)		+= pcl726.o
-obj-$(CONFIG_COMEDI_PCL730)		+= pcl730.o
-obj-$(CONFIG_COMEDI_PCL812)		+= pcl812.o
-obj-$(CONFIG_COMEDI_PCL816)		+= pcl816.o
-obj-$(CONFIG_COMEDI_PCL818)		+= pcl818.o
-obj-$(CONFIG_COMEDI_PCM3724)		+= pcm3724.o
-obj-$(CONFIG_COMEDI_RTI800)		+= rti800.o
-obj-$(CONFIG_COMEDI_RTI802)		+= rti802.o
-obj-$(CONFIG_COMEDI_DAC02)		+= dac02.o
-obj-$(CONFIG_COMEDI_DAS16M1)		+= das16m1.o
-obj-$(CONFIG_COMEDI_DAS08_ISA)		+= das08_isa.o
-obj-$(CONFIG_COMEDI_DAS16)		+= das16.o
-obj-$(CONFIG_COMEDI_DAS800)		+= das800.o
-obj-$(CONFIG_COMEDI_DAS1800)		+= das1800.o
-obj-$(CONFIG_COMEDI_DAS6402)		+= das6402.o
-obj-$(CONFIG_COMEDI_DT2801)		+= dt2801.o
-obj-$(CONFIG_COMEDI_DT2811)		+= dt2811.o
-obj-$(CONFIG_COMEDI_DT2814)		+= dt2814.o
-obj-$(CONFIG_COMEDI_DT2815)		+= dt2815.o
-obj-$(CONFIG_COMEDI_DT2817)		+= dt2817.o
-obj-$(CONFIG_COMEDI_DT282X)		+= dt282x.o
-obj-$(CONFIG_COMEDI_DMM32AT)		+= dmm32at.o
-obj-$(CONFIG_COMEDI_FL512)		+= fl512.o
-obj-$(CONFIG_COMEDI_AIO_AIO12_8)	+= aio_aio12_8.o
-obj-$(CONFIG_COMEDI_AIO_IIRO_16)	+= aio_iiro_16.o
-obj-$(CONFIG_COMEDI_II_PCI20KC)		+= ii_pci20kc.o
-obj-$(CONFIG_COMEDI_C6XDIGIO)		+= c6xdigio.o
-obj-$(CONFIG_COMEDI_MPC624)		+= mpc624.o
-obj-$(CONFIG_COMEDI_ADQ12B)		+= adq12b.o
-obj-$(CONFIG_COMEDI_NI_AT_A2150)	+= ni_at_a2150.o
-obj-$(CONFIG_COMEDI_NI_AT_AO)		+= ni_at_ao.o
-obj-$(CONFIG_COMEDI_NI_ATMIO)		+= ni_atmio.o
-obj-$(CONFIG_COMEDI_NI_ATMIO16D)	+= ni_atmio16d.o
-obj-$(CONFIG_COMEDI_NI_LABPC_ISA)	+= ni_labpc.o
-obj-$(CONFIG_COMEDI_PCMAD)		+= pcmad.o
-obj-$(CONFIG_COMEDI_PCMDA12)		+= pcmda12.o
-obj-$(CONFIG_COMEDI_PCMMIO)		+= pcmmio.o
-obj-$(CONFIG_COMEDI_PCMUIO)		+= pcmuio.o
-obj-$(CONFIG_COMEDI_MULTIQ3)		+= multiq3.o
-obj-$(CONFIG_COMEDI_S526)		+= s526.o
-
-# Comedi PCI drivers
-obj-$(CONFIG_COMEDI_8255_PCI)		+= 8255_pci.o
-obj-$(CONFIG_COMEDI_ADDI_WATCHDOG)	+= addi_watchdog.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_1032)	+= addi_apci_1032.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_1500)	+= addi_apci_1500.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_1516)	+= addi_apci_1516.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_1564)	+= addi_apci_1564.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_16XX)	+= addi_apci_16xx.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_2032)	+= addi_apci_2032.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_2200)	+= addi_apci_2200.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_3120)	+= addi_apci_3120.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_3501)	+= addi_apci_3501.o
-obj-$(CONFIG_COMEDI_ADDI_APCI_3XXX)	+= addi_apci_3xxx.o
-obj-$(CONFIG_COMEDI_ADL_PCI6208)	+= adl_pci6208.o
-obj-$(CONFIG_COMEDI_ADL_PCI7X3X)	+= adl_pci7x3x.o
-obj-$(CONFIG_COMEDI_ADL_PCI8164)	+= adl_pci8164.o
-obj-$(CONFIG_COMEDI_ADL_PCI9111)	+= adl_pci9111.o
-obj-$(CONFIG_COMEDI_ADL_PCI9118)	+= adl_pci9118.o
-obj-$(CONFIG_COMEDI_ADV_PCI1710)	+= adv_pci1710.o
-obj-$(CONFIG_COMEDI_ADV_PCI1723)	+= adv_pci1723.o
-obj-$(CONFIG_COMEDI_ADV_PCI1724)	+= adv_pci1724.o
-obj-$(CONFIG_COMEDI_ADV_PCI_DIO)	+= adv_pci_dio.o
-obj-$(CONFIG_COMEDI_AMPLC_DIO200_PCI)	+= amplc_dio200_pci.o
-obj-$(CONFIG_COMEDI_AMPLC_PC236_PCI)	+= amplc_pci236.o
-obj-$(CONFIG_COMEDI_AMPLC_PC263_PCI)	+= amplc_pci263.o
-obj-$(CONFIG_COMEDI_AMPLC_PCI224)	+= amplc_pci224.o
-obj-$(CONFIG_COMEDI_AMPLC_PCI230)	+= amplc_pci230.o
-obj-$(CONFIG_COMEDI_CONTEC_PCI_DIO)	+= contec_pci_dio.o
-obj-$(CONFIG_COMEDI_DAS08_PCI)		+= das08_pci.o
-obj-$(CONFIG_COMEDI_DT3000)		+= dt3000.o
-obj-$(CONFIG_COMEDI_DYNA_PCI10XX)	+= dyna_pci10xx.o
-obj-$(CONFIG_COMEDI_UNIOXX5)		+= unioxx5.o
-obj-$(CONFIG_COMEDI_GSC_HPDI)		+= gsc_hpdi.o
-obj-$(CONFIG_COMEDI_ICP_MULTI)		+= icp_multi.o
-obj-$(CONFIG_COMEDI_DAQBOARD2000)	+= daqboard2000.o
-obj-$(CONFIG_COMEDI_JR3_PCI)		+= jr3_pci.o
-obj-$(CONFIG_COMEDI_KE_COUNTER)		+= ke_counter.o
-obj-$(CONFIG_COMEDI_CB_PCIDAS64)	+= cb_pcidas64.o
-obj-$(CONFIG_COMEDI_CB_PCIDAS)		+= cb_pcidas.o
-obj-$(CONFIG_COMEDI_CB_PCIDDA)		+= cb_pcidda.o
-obj-$(CONFIG_COMEDI_CB_PCIMDAS)		+= cb_pcimdas.o
-obj-$(CONFIG_COMEDI_CB_PCIMDDA)		+= cb_pcimdda.o
-obj-$(CONFIG_COMEDI_ME4000)		+= me4000.o
-obj-$(CONFIG_COMEDI_ME_DAQ)		+= me_daq.o
-obj-$(CONFIG_COMEDI_NI_6527)		+= ni_6527.o
-obj-$(CONFIG_COMEDI_NI_65XX)		+= ni_65xx.o
-obj-$(CONFIG_COMEDI_NI_660X)		+= ni_660x.o
-obj-$(CONFIG_COMEDI_NI_670X)		+= ni_670x.o
-obj-$(CONFIG_COMEDI_NI_LABPC_PCI)	+= ni_labpc_pci.o
-obj-$(CONFIG_COMEDI_NI_PCIDIO)		+= ni_pcidio.o
-obj-$(CONFIG_COMEDI_NI_PCIMIO)		+= ni_pcimio.o
-obj-$(CONFIG_COMEDI_RTD520)		+= rtd520.o
-obj-$(CONFIG_COMEDI_S626)		+= s626.o
-obj-$(CONFIG_COMEDI_SSV_DNP)		+= ssv_dnp.o
-obj-$(CONFIG_COMEDI_MF6X4)		+= mf6x4.o
-
-# Comedi PCMCIA drivers
-obj-$(CONFIG_COMEDI_CB_DAS16_CS)	+= cb_das16_cs.o
-obj-$(CONFIG_COMEDI_DAS08_CS)		+= das08_cs.o
-obj-$(CONFIG_COMEDI_NI_DAQ_700_CS)	+= ni_daq_700.o
-obj-$(CONFIG_COMEDI_NI_DAQ_DIO24_CS)	+= ni_daq_dio24.o
-obj-$(CONFIG_COMEDI_NI_LABPC_CS)	+= ni_labpc_cs.o
-obj-$(CONFIG_COMEDI_NI_MIO_CS)		+= ni_mio_cs.o
-obj-$(CONFIG_COMEDI_QUATECH_DAQP_CS)	+= quatech_daqp_cs.o
-
-# Comedi USB drivers
-obj-$(CONFIG_COMEDI_DT9812)		+= dt9812.o
-obj-$(CONFIG_COMEDI_NI_USB6501)		+= ni_usb6501.o
-obj-$(CONFIG_COMEDI_USBDUX)		+= usbdux.o
-obj-$(CONFIG_COMEDI_USBDUXFAST)		+= usbduxfast.o
-obj-$(CONFIG_COMEDI_USBDUXSIGMA)	+= usbduxsigma.o
-obj-$(CONFIG_COMEDI_VMK80XX)		+= vmk80xx.o
-
-# Comedi NI drivers
-obj-$(CONFIG_COMEDI_MITE)		+= mite.o
-obj-$(CONFIG_COMEDI_NI_TIO)		+= ni_tio.o
-obj-$(CONFIG_COMEDI_NI_TIOCMD)		+= ni_tiocmd.o
-obj-$(CONFIG_COMEDI_NI_LABPC)		+= ni_labpc_common.o
-obj-$(CONFIG_COMEDI_NI_LABPC_ISADMA)	+= ni_labpc_isadma.o
-
-obj-$(CONFIG_COMEDI_8255)		+= comedi_8255.o
-obj-$(CONFIG_COMEDI_8255_SA)		+= 8255.o
-obj-$(CONFIG_COMEDI_AMPLC_DIO200)	+= amplc_dio200_common.o
-obj-$(CONFIG_COMEDI_AMPLC_PC236)	+= amplc_pc236_common.o
-obj-$(CONFIG_COMEDI_DAS08)		+= das08.o
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
deleted file mode 100644
index f0c0d58383ca..000000000000
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
+++ /dev/null
@@ -1,187 +0,0 @@
-static int apci1564_timer_insn_config(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	struct apci1564_private *devpriv = dev->private;
-	unsigned int ctrl;
-
-	devpriv->tsk_current = current;
-
-	/* Stop the timer */
-	ctrl = inl(devpriv->timer + ADDI_TCW_CTRL_REG);
-	ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG |
-		  ADDI_TCW_CTRL_ENA);
-	outl(ctrl, devpriv->timer + ADDI_TCW_CTRL_REG);
-
-	if (data[1] == 1) {
-		/* Enable timer int & disable all the other int sources */
-		outl(ADDI_TCW_CTRL_IRQ_ENA,
-		     devpriv->timer + ADDI_TCW_CTRL_REG);
-		outl(0x0, dev->iobase + APCI1564_DI_IRQ_REG);
-		outl(0x0, dev->iobase + APCI1564_DO_IRQ_REG);
-		outl(0x0, dev->iobase + APCI1564_WDOG_IRQ_REG);
-		if (devpriv->counters) {
-			unsigned long iobase;
-
-			iobase = devpriv->counters + ADDI_TCW_IRQ_REG;
-			outl(0x0, iobase + APCI1564_COUNTER(0));
-			outl(0x0, iobase + APCI1564_COUNTER(1));
-			outl(0x0, iobase + APCI1564_COUNTER(2));
-		}
-	} else {
-		/* disable Timer interrupt */
-		outl(0x0, devpriv->timer + ADDI_TCW_CTRL_REG);
-	}
-
-	/* Loading Timebase */
-	outl(data[2], devpriv->timer + ADDI_TCW_TIMEBASE_REG);
-
-	/* Loading the Reload value */
-	outl(data[3], devpriv->timer + ADDI_TCW_RELOAD_REG);
-
-	ctrl = inl(devpriv->timer + ADDI_TCW_CTRL_REG);
-	ctrl &= ~(ADDI_TCW_CTRL_CNTR_ENA | ADDI_TCW_CTRL_MODE_MASK |
-		  ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG |
-		  ADDI_TCW_CTRL_TIMER_ENA | ADDI_TCW_CTRL_RESET_ENA |
-		  ADDI_TCW_CTRL_WARN_ENA | ADDI_TCW_CTRL_ENA);
-	ctrl |= ADDI_TCW_CTRL_MODE(2) | ADDI_TCW_CTRL_TIMER_ENA;
-	outl(ctrl, devpriv->timer + ADDI_TCW_CTRL_REG);
-
-	return insn->n;
-}
-
-static int apci1564_timer_insn_write(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct apci1564_private *devpriv = dev->private;
-	unsigned int ctrl;
-
-	ctrl = inl(devpriv->timer + ADDI_TCW_CTRL_REG);
-	ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG);
-	switch (data[1]) {
-	case 0:	/* Stop The Timer */
-		ctrl &= ~ADDI_TCW_CTRL_ENA;
-		break;
-	case 1:	/* Enable the Timer */
-		ctrl |= ADDI_TCW_CTRL_ENA;
-		break;
-	}
-	outl(ctrl, devpriv->timer + ADDI_TCW_CTRL_REG);
-
-	return insn->n;
-}
-
-static int apci1564_timer_insn_read(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct apci1564_private *devpriv = dev->private;
-
-	/* Stores the status of the Timer */
-	data[0] = inl(devpriv->timer + ADDI_TCW_STATUS_REG) &
-		  ADDI_TCW_STATUS_OVERFLOW;
-
-	/* Stores the Actual value of the Timer */
-	data[1] = inl(devpriv->timer + ADDI_TCW_VAL_REG);
-
-	return insn->n;
-}
-
-static int apci1564_counter_insn_config(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	struct apci1564_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned long iobase = devpriv->counters + APCI1564_COUNTER(chan);
-	unsigned int ctrl;
-
-	devpriv->tsk_current = current;
-
-	/* Stop The Timer */
-	ctrl = inl(iobase + ADDI_TCW_CTRL_REG);
-	ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG |
-		  ADDI_TCW_CTRL_ENA);
-	outl(ctrl, iobase + ADDI_TCW_CTRL_REG);
-
-	/* Set the reload value */
-	outl(data[3], iobase + ADDI_TCW_RELOAD_REG);
-
-	/* Set the mode */
-	ctrl &= ~(ADDI_TCW_CTRL_EXT_CLK_MASK | ADDI_TCW_CTRL_MODE_MASK |
-		  ADDI_TCW_CTRL_TIMER_ENA | ADDI_TCW_CTRL_RESET_ENA |
-		  ADDI_TCW_CTRL_WARN_ENA);
-	ctrl |= ADDI_TCW_CTRL_CNTR_ENA | ADDI_TCW_CTRL_MODE(data[4]);
-	outl(ctrl, iobase + ADDI_TCW_CTRL_REG);
-
-	/* Enable or Disable Interrupt */
-	if (data[1])
-		ctrl |= ADDI_TCW_CTRL_IRQ_ENA;
-	else
-		ctrl &= ~ADDI_TCW_CTRL_IRQ_ENA;
-	outl(ctrl, iobase + ADDI_TCW_CTRL_REG);
-
-	/* Set the Up/Down selection */
-	if (data[6])
-		ctrl |= ADDI_TCW_CTRL_CNT_UP;
-	else
-		ctrl &= ~ADDI_TCW_CTRL_CNT_UP;
-	outl(ctrl, iobase + ADDI_TCW_CTRL_REG);
-
-	return insn->n;
-}
-
-static int apci1564_counter_insn_write(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_insn *insn,
-				       unsigned int *data)
-{
-	struct apci1564_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned long iobase = devpriv->counters + APCI1564_COUNTER(chan);
-	unsigned int ctrl;
-
-	ctrl = inl(iobase + ADDI_TCW_CTRL_REG);
-	ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG);
-	switch (data[1]) {
-	case 0:	/* Stops the Counter subdevice */
-		ctrl = 0;
-		break;
-	case 1:	/* Start the Counter subdevice */
-		ctrl |= ADDI_TCW_CTRL_ENA;
-		break;
-	case 2:	/* Clears the Counter subdevice */
-		ctrl |= ADDI_TCW_CTRL_GATE;
-		break;
-	}
-	outl(ctrl, iobase + ADDI_TCW_CTRL_REG);
-
-	return insn->n;
-}
-
-static int apci1564_counter_insn_read(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	struct apci1564_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned long iobase = devpriv->counters + APCI1564_COUNTER(chan);
-	unsigned int status;
-
-	/* Read the Counter Actual Value. */
-	data[0] = inl(iobase + ADDI_TCW_VAL_REG);
-
-	status = inl(iobase + ADDI_TCW_STATUS_REG);
-	data[1] = (status & ADDI_TCW_STATUS_SOFT_TRIG) ? 1 : 0;
-	data[2] = (status & ADDI_TCW_STATUS_HARDWARE_TRIG) ? 1 : 0;
-	data[3] = (status & ADDI_TCW_STATUS_SOFT_CLR) ? 1 : 0;
-	data[4] = (status & ADDI_TCW_STATUS_OVERFLOW) ? 1 : 0;
-
-	return insn->n;
-}
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c
deleted file mode 100644
index 375707497896..000000000000
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3501.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/* Watchdog Related Defines */
-
-#define ADDIDATA_TIMER			0
-#define ADDIDATA_WATCHDOG		2
-
-/*
- * (*insn_config) for the timer subdevice
- *
- * Configures The Timer, Counter or Watchdog
- * Data Pointer contains configuration parameters as below
- *	data[0] : 0 Configure As Timer
- *		  1 Configure As Counter
- *		  2 Configure As Watchdog
- *	data[1] : 1 Enable  Interrupt
- *		  0 Disable Interrupt
- *	data[2] : Time Unit
- *	data[3] : Reload Value
- */
-static int apci3501_config_insn_timer(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	struct apci3501_private *devpriv = dev->private;
-	unsigned int ctrl;
-
-	if (data[0] != ADDIDATA_WATCHDOG &&
-	    data[0] != ADDIDATA_TIMER)
-		return -EINVAL;
-
-	devpriv->tsk_Current = current;
-
-	devpriv->timer_mode = data[0];
-
-	/* first, disable the watchdog or stop the timer */
-	if (devpriv->timer_mode == ADDIDATA_WATCHDOG) {
-		ctrl = 0;
-	} else {
-		ctrl = inl(devpriv->tcw + ADDI_TCW_CTRL_REG);
-		ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG |
-			  ADDI_TCW_CTRL_ENA);
-	}
-	outl(ctrl, devpriv->tcw + ADDI_TCW_CTRL_REG);
-
-	/* enable/disable the timer interrupt */
-	ctrl = (data[1] == 1) ? ADDI_TCW_CTRL_IRQ_ENA : 0;
-	outl(ctrl, devpriv->tcw + ADDI_TCW_CTRL_REG);
-
-	outl(data[2], devpriv->tcw + ADDI_TCW_TIMEBASE_REG);
-	outl(data[3], devpriv->tcw + ADDI_TCW_RELOAD_REG);
-
-	ctrl = inl(devpriv->tcw + ADDI_TCW_CTRL_REG);
-	if (devpriv->timer_mode == ADDIDATA_WATCHDOG) {
-		/* Set the mode (e2->e0) NOTE: this doesn't look correct */
-		ctrl |= ~(ADDI_TCW_CTRL_CNT_UP | ADDI_TCW_CTRL_EXT_CLK_MASK |
-			  ADDI_TCW_CTRL_MODE_MASK | ADDI_TCW_CTRL_GATE |
-			  ADDI_TCW_CTRL_TRIG | ADDI_TCW_CTRL_TIMER_ENA |
-			  ADDI_TCW_CTRL_RESET_ENA | ADDI_TCW_CTRL_WARN_ENA |
-			  ADDI_TCW_CTRL_IRQ_ENA | ADDI_TCW_CTRL_ENA);
-	} else {
-		/* mode 2 */
-		ctrl &= ~(ADDI_TCW_CTRL_CNTR_ENA | ADDI_TCW_CTRL_MODE_MASK |
-			  ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG |
-			  ADDI_TCW_CTRL_TIMER_ENA | ADDI_TCW_CTRL_RESET_ENA |
-			  ADDI_TCW_CTRL_WARN_ENA | ADDI_TCW_CTRL_ENA);
-		ctrl |= ADDI_TCW_CTRL_MODE(2) | ADDI_TCW_CTRL_TIMER_ENA;
-	}
-	outl(ctrl, devpriv->tcw + ADDI_TCW_CTRL_REG);
-
-	return insn->n;
-}
-
-/*
- * (*insn_write) for the timer subdevice
- *
- * Start / Stop The Selected Timer , Counter or Watchdog
- * Data Pointer contains configuration parameters as below
- *	data[0] : 0 Timer
- *		  1 Counter
- *		  2 Watchdog
- *	data[1] : 1 Start
- *		  0 Stop
- *		  2 Trigger
- */
-static int apci3501_write_insn_timer(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct apci3501_private *devpriv = dev->private;
-	unsigned int ctrl;
-
-	if (devpriv->timer_mode == ADDIDATA_WATCHDOG ||
-	    devpriv->timer_mode == ADDIDATA_TIMER) {
-		ctrl = inl(devpriv->tcw + ADDI_TCW_CTRL_REG);
-		ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG);
-
-		if (data[1] == 1) {		/* enable */
-			ctrl |= ADDI_TCW_CTRL_ENA;
-		} else if (data[1] == 0) {	/* stop */
-			if (devpriv->timer_mode == ADDIDATA_WATCHDOG)
-				ctrl = 0;
-			else
-				ctrl &= ~ADDI_TCW_CTRL_ENA;
-		} else if (data[1] == 2) {	/* trigger */
-			ctrl |= ADDI_TCW_CTRL_TRIG;
-		}
-		outl(ctrl, devpriv->tcw + ADDI_TCW_CTRL_REG);
-	}
-
-	inl(devpriv->tcw + ADDI_TCW_STATUS_REG);
-	return insn->n;
-}
-
-/*
- * (*insn_read) for the timer subdevice
- *
- * Read The Selected Timer, Counter or Watchdog
- * Data Pointer contains configuration parameters as below
- *	data[0] : 0 Timer
- *		  1 Counter
- *		  2 Watchdog
- *	data[1] : Timer Counter Watchdog Number
- */
-static int apci3501_read_insn_timer(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct apci3501_private *devpriv = dev->private;
-
-	if (devpriv->timer_mode != ADDIDATA_TIMER &&
-	    devpriv->timer_mode != ADDIDATA_WATCHDOG)
-		return -EINVAL;
-
-	data[0] = inl(devpriv->tcw + ADDI_TCW_STATUS_REG) &
-		  ADDI_TCW_STATUS_OVERFLOW;
-	data[1] = inl(devpriv->tcw + ADDI_TCW_VAL_REG);
-
-	return insn->n;
-}
diff --git a/drivers/staging/comedi/drivers/addi_apci_1032.c b/drivers/staging/comedi/drivers/addi_apci_1032.c
deleted file mode 100644
index b37166d57b64..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_1032.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * addi_apci_1032.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- * Project manager: Eric Stolz
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-/*
- * Driver: addi_apci_1032
- * Description: ADDI-DATA APCI-1032 Digital Input Board
- * Author: ADDI-DATA GmbH <info@addi-data.com>,
- *   H Hartley Sweeten <hsweeten@visionengravers.com>
- * Status: untested
- * Devices: [ADDI-DATA] APCI-1032 (addi_apci_1032)
- *
- * Configuration options:
- *   None; devices are configured automatically.
- *
- * This driver models the APCI-1032 as a 32-channel, digital input subdevice
- * plus an additional digital input subdevice to handle change-of-state (COS)
- * interrupts (if an interrupt handler can be set up successfully).
- *
- * The COS subdevice supports comedi asynchronous read commands.
- *
- * Change-Of-State (COS) interrupt configuration:
- *
- * Channels 0 to 15 are interruptible. These channels can be configured
- * to generate interrupts based on AND/OR logic for the desired channels.
- *
- *   OR logic:
- *   - reacts to rising or falling edges
- *   - interrupt is generated when any enabled channel meets the desired
- *     interrupt condition
- *
- *   AND logic:
- *   - reacts to changes in level of the selected inputs
- *   - interrupt is generated when all enabled channels meet the desired
- *     interrupt condition
- *   - after an interrupt, a change in level must occur on the selected
- *     inputs to release the IRQ logic
- *
- * The COS subdevice must be configured before setting up a comedi
- * asynchronous command:
- *
- *   data[0] : INSN_CONFIG_DIGITAL_TRIG
- *   data[1] : trigger number (= 0)
- *   data[2] : configuration operation:
- *             - COMEDI_DIGITAL_TRIG_DISABLE = no interrupts
- *             - COMEDI_DIGITAL_TRIG_ENABLE_EDGES = OR (edge) interrupts
- *             - COMEDI_DIGITAL_TRIG_ENABLE_LEVELS = AND (level) interrupts
- *   data[3] : left-shift for data[4] and data[5]
- *   data[4] : rising-edge/high level channels
- *   data[5] : falling-edge/low level channels
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-#include "amcc_s5933.h"
-
-/*
- * I/O Register Map
- */
-#define APCI1032_DI_REG			0x00
-#define APCI1032_MODE1_REG		0x04
-#define APCI1032_MODE2_REG		0x08
-#define APCI1032_STATUS_REG		0x0c
-#define APCI1032_CTRL_REG		0x10
-#define APCI1032_CTRL_INT_OR		(0 << 1)
-#define APCI1032_CTRL_INT_AND		(1 << 1)
-#define APCI1032_CTRL_INT_ENA		(1 << 2)
-
-struct apci1032_private {
-	unsigned long amcc_iobase;	/* base of AMCC I/O registers */
-	unsigned int mode1;	/* rising-edge/high level channels */
-	unsigned int mode2;	/* falling-edge/low level channels */
-	unsigned int ctrl;	/* interrupt mode OR (edge) . AND (level) */
-};
-
-static int apci1032_reset(struct comedi_device *dev)
-{
-	/* disable the interrupts */
-	outl(0x0, dev->iobase + APCI1032_CTRL_REG);
-	/* Reset the interrupt status register */
-	inl(dev->iobase + APCI1032_STATUS_REG);
-	/* Disable the and/or interrupt */
-	outl(0x0, dev->iobase + APCI1032_MODE1_REG);
-	outl(0x0, dev->iobase + APCI1032_MODE2_REG);
-
-	return 0;
-}
-
-static int apci1032_cos_insn_config(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct apci1032_private *devpriv = dev->private;
-	unsigned int shift, oldmask;
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIGITAL_TRIG:
-		if (data[1] != 0)
-			return -EINVAL;
-		shift = data[3];
-		oldmask = (1U << shift) - 1;
-		switch (data[2]) {
-		case COMEDI_DIGITAL_TRIG_DISABLE:
-			devpriv->ctrl = 0;
-			devpriv->mode1 = 0;
-			devpriv->mode2 = 0;
-			apci1032_reset(dev);
-			break;
-		case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
-			if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
-					      APCI1032_CTRL_INT_OR)) {
-				/* switching to 'OR' mode */
-				devpriv->ctrl = APCI1032_CTRL_INT_ENA |
-						APCI1032_CTRL_INT_OR;
-				/* wipe old channels */
-				devpriv->mode1 = 0;
-				devpriv->mode2 = 0;
-			} else {
-				/* preserve unspecified channels */
-				devpriv->mode1 &= oldmask;
-				devpriv->mode2 &= oldmask;
-			}
-			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
-			break;
-		case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
-			if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
-					      APCI1032_CTRL_INT_AND)) {
-				/* switching to 'AND' mode */
-				devpriv->ctrl = APCI1032_CTRL_INT_ENA |
-						APCI1032_CTRL_INT_AND;
-				/* wipe old channels */
-				devpriv->mode1 = 0;
-				devpriv->mode2 = 0;
-			} else {
-				/* preserve unspecified channels */
-				devpriv->mode1 &= oldmask;
-				devpriv->mode2 &= oldmask;
-			}
-			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int apci1032_cos_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	data[1] = s->state;
-
-	return 0;
-}
-
-static int apci1032_cos_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-/*
- * Change-Of-State (COS) 'do_cmd' operation
- *
- * Enable the COS interrupt as configured by apci1032_cos_insn_config().
- */
-static int apci1032_cos_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct apci1032_private *devpriv = dev->private;
-
-	if (!devpriv->ctrl) {
-		dev_warn(dev->class_dev,
-			 "Interrupts disabled due to mode configuration!\n");
-		return -EINVAL;
-	}
-
-	outl(devpriv->mode1, dev->iobase + APCI1032_MODE1_REG);
-	outl(devpriv->mode2, dev->iobase + APCI1032_MODE2_REG);
-	outl(devpriv->ctrl, dev->iobase + APCI1032_CTRL_REG);
-
-	return 0;
-}
-
-static int apci1032_cos_cancel(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	return apci1032_reset(dev);
-}
-
-static irqreturn_t apci1032_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct apci1032_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int ctrl;
-
-	/* check interrupt is from this device */
-	if ((inl(devpriv->amcc_iobase + AMCC_OP_REG_INTCSR) &
-	     INTCSR_INTR_ASSERTED) == 0)
-		return IRQ_NONE;
-
-	/* check interrupt is enabled */
-	ctrl = inl(dev->iobase + APCI1032_CTRL_REG);
-	if ((ctrl & APCI1032_CTRL_INT_ENA) == 0)
-		return IRQ_HANDLED;
-
-	/* disable the interrupt */
-	outl(ctrl & ~APCI1032_CTRL_INT_ENA, dev->iobase + APCI1032_CTRL_REG);
-
-	s->state = inl(dev->iobase + APCI1032_STATUS_REG) & 0xffff;
-	comedi_buf_write_samples(s, &s->state, 1);
-	comedi_handle_events(dev, s);
-
-	/* enable the interrupt */
-	outl(ctrl, dev->iobase + APCI1032_CTRL_REG);
-
-	return IRQ_HANDLED;
-}
-
-static int apci1032_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	data[1] = inl(dev->iobase + APCI1032_DI_REG);
-
-	return insn->n;
-}
-
-static int apci1032_auto_attach(struct comedi_device *dev,
-				unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct apci1032_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv->amcc_iobase = pci_resource_start(pcidev, 0);
-	dev->iobase = pci_resource_start(pcidev, 1);
-	apci1032_reset(dev);
-	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, apci1032_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	/*  Allocate and Initialise DI Subdevice Structures */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 32;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci1032_di_insn_bits;
-
-	/* Change-Of-State (COS) interrupt subdevice */
-	s = &dev->subdevices[1];
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
-		s->n_chan	= 1;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_config	= apci1032_cos_insn_config;
-		s->insn_bits	= apci1032_cos_insn_bits;
-		s->len_chanlist	= 1;
-		s->do_cmdtest	= apci1032_cos_cmdtest;
-		s->do_cmd	= apci1032_cos_cmd;
-		s->cancel	= apci1032_cos_cancel;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	return 0;
-}
-
-static void apci1032_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		apci1032_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci1032_driver = {
-	.driver_name	= "addi_apci_1032",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci1032_auto_attach,
-	.detach		= apci1032_detach,
-};
-
-static int apci1032_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci1032_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci1032_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1003) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci1032_pci_table);
-
-static struct pci_driver apci1032_pci_driver = {
-	.name		= "addi_apci_1032",
-	.id_table	= apci1032_pci_table,
-	.probe		= apci1032_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci1032_driver, apci1032_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("ADDI-DATA APCI-1032, 32 channel DI boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_1500.c b/drivers/staging/comedi/drivers/addi_apci_1500.c
deleted file mode 100644
index 63991c49ff23..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_1500.c
+++ /dev/null
@@ -1,878 +0,0 @@
-/*
- * addi_apci_1500.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-#include "amcc_s5933.h"
-#include "z8536.h"
-
-/*
- * PCI Bar 0 Register map (devpriv->amcc)
- * see amcc_s5933.h for register and bit defines
- */
-
-/*
- * PCI Bar 1 Register map (dev->iobase)
- * see z8536.h for Z8536 internal registers and bit defines
- */
-#define APCI1500_Z8536_PORTC_REG	0x00
-#define APCI1500_Z8536_PORTB_REG	0x01
-#define APCI1500_Z8536_PORTA_REG	0x02
-#define APCI1500_Z8536_CTRL_REG		0x03
-
-/*
- * PCI Bar 2 Register map (devpriv->addon)
- */
-#define APCI1500_CLK_SEL_REG		0x00
-#define APCI1500_DI_REG			0x00
-#define APCI1500_DO_REG			0x02
-
-struct apci1500_private {
-	unsigned long amcc;
-	unsigned long addon;
-
-	unsigned int clk_src;
-
-	/* Digital trigger configuration [0]=AND [1]=OR */
-	unsigned int pm[2];	/* Pattern Mask */
-	unsigned int pt[2];	/* Pattern Transition */
-	unsigned int pp[2];	/* Pattern Polarity */
-};
-
-static unsigned int z8536_read(struct comedi_device *dev, unsigned int reg)
-{
-	unsigned long flags;
-	unsigned int val;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	outb(reg, dev->iobase + APCI1500_Z8536_CTRL_REG);
-	val = inb(dev->iobase + APCI1500_Z8536_CTRL_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return val;
-}
-
-static void z8536_write(struct comedi_device *dev,
-			unsigned int val, unsigned int reg)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	outb(reg, dev->iobase + APCI1500_Z8536_CTRL_REG);
-	outb(val, dev->iobase + APCI1500_Z8536_CTRL_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-static void z8536_reset(struct comedi_device *dev)
-{
-	unsigned long flags;
-
-	/*
-	 * Even if the state of the Z8536 is not known, the following
-	 * sequence will reset it and put it in State 0.
-	 */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	inb(dev->iobase + APCI1500_Z8536_CTRL_REG);
-	outb(0, dev->iobase + APCI1500_Z8536_CTRL_REG);
-	inb(dev->iobase + APCI1500_Z8536_CTRL_REG);
-	outb(0, dev->iobase + APCI1500_Z8536_CTRL_REG);
-	outb(1, dev->iobase + APCI1500_Z8536_CTRL_REG);
-	outb(0, dev->iobase + APCI1500_Z8536_CTRL_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/* Disable all Ports and Counter/Timers */
-	z8536_write(dev, 0x00, Z8536_CFG_CTRL_REG);
-
-	/*
-	 * Port A is connected to Ditial Input channels 0-7.
-	 * Configure the port to allow interrupt detection.
-	 */
-	z8536_write(dev, Z8536_PAB_MODE_PTS_BIT |
-			 Z8536_PAB_MODE_SB |
-			 Z8536_PAB_MODE_PMS_DISABLE,
-		    Z8536_PA_MODE_REG);
-	z8536_write(dev, 0xff, Z8536_PB_DPP_REG);
-	z8536_write(dev, 0xff, Z8536_PA_DD_REG);
-
-	/*
-	 * Port B is connected to Ditial Input channels 8-13.
-	 * Configure the port to allow interrupt detection.
-	 *
-	 * NOTE: Bits 7 and 6 of Port B are connected to internal
-	 * diagnostic signals and bit 7 is inverted.
-	 */
-	z8536_write(dev, Z8536_PAB_MODE_PTS_BIT |
-			 Z8536_PAB_MODE_SB |
-			 Z8536_PAB_MODE_PMS_DISABLE,
-		    Z8536_PB_MODE_REG);
-	z8536_write(dev, 0x7f, Z8536_PB_DPP_REG);
-	z8536_write(dev, 0xff, Z8536_PB_DD_REG);
-
-	/*
-	 * Not sure what Port C is connected to...
-	 */
-	z8536_write(dev, 0x09, Z8536_PC_DPP_REG);
-	z8536_write(dev, 0x0e, Z8536_PC_DD_REG);
-
-	/*
-	 * Clear and disable all interrupt sources.
-	 *
-	 * Just in case, the reset of the Z8536 should have already
-	 * done this.
-	 */
-	z8536_write(dev, Z8536_CMD_CLR_IP_IUS, Z8536_PA_CMDSTAT_REG);
-	z8536_write(dev, Z8536_CMD_CLR_IE, Z8536_PA_CMDSTAT_REG);
-
-	z8536_write(dev, Z8536_CMD_CLR_IP_IUS, Z8536_PB_CMDSTAT_REG);
-	z8536_write(dev, Z8536_CMD_CLR_IE, Z8536_PB_CMDSTAT_REG);
-
-	z8536_write(dev, Z8536_CMD_CLR_IP_IUS, Z8536_CT_CMDSTAT_REG(0));
-	z8536_write(dev, Z8536_CMD_CLR_IE, Z8536_CT_CMDSTAT_REG(0));
-
-	z8536_write(dev, Z8536_CMD_CLR_IP_IUS, Z8536_CT_CMDSTAT_REG(1));
-	z8536_write(dev, Z8536_CMD_CLR_IE, Z8536_CT_CMDSTAT_REG(1));
-
-	z8536_write(dev, Z8536_CMD_CLR_IP_IUS, Z8536_CT_CMDSTAT_REG(2));
-	z8536_write(dev, Z8536_CMD_CLR_IE, Z8536_CT_CMDSTAT_REG(2));
-
-	/* Disable all interrupts */
-	z8536_write(dev, 0x00, Z8536_INT_CTRL_REG);
-}
-
-static void apci1500_port_enable(struct comedi_device *dev, bool enable)
-{
-	unsigned int cfg;
-
-	cfg = z8536_read(dev, Z8536_CFG_CTRL_REG);
-	if (enable)
-		cfg |= (Z8536_CFG_CTRL_PAE | Z8536_CFG_CTRL_PBE);
-	else
-		cfg &= ~(Z8536_CFG_CTRL_PAE | Z8536_CFG_CTRL_PBE);
-	z8536_write(dev, cfg, Z8536_CFG_CTRL_REG);
-}
-
-static void apci1500_timer_enable(struct comedi_device *dev,
-				  unsigned int chan, bool enable)
-{
-	unsigned int bit;
-	unsigned int cfg;
-
-	if (chan == 0)
-		bit = Z8536_CFG_CTRL_CT1E;
-	else if (chan == 1)
-		bit = Z8536_CFG_CTRL_CT2E;
-	else
-		bit = Z8536_CFG_CTRL_PCE_CT3E;
-
-	cfg = z8536_read(dev, Z8536_CFG_CTRL_REG);
-	if (enable) {
-		cfg |= bit;
-	} else {
-		cfg &= ~bit;
-		z8536_write(dev, 0x00, Z8536_CT_CMDSTAT_REG(chan));
-	}
-	z8536_write(dev, cfg, Z8536_CFG_CTRL_REG);
-}
-
-static bool apci1500_ack_irq(struct comedi_device *dev,
-			     unsigned int reg)
-{
-	unsigned int val;
-
-	val = z8536_read(dev, reg);
-	if ((val & Z8536_STAT_IE_IP) == Z8536_STAT_IE_IP) {
-		val &= 0x0f;			/* preserve any write bits */
-		val |= Z8536_CMD_CLR_IP_IUS;
-		z8536_write(dev, val, reg);
-
-		return true;
-	}
-	return false;
-}
-
-static irqreturn_t apci1500_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct apci1500_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int status = 0;
-	unsigned int val;
-
-	val = inl(devpriv->amcc + AMCC_OP_REG_INTCSR);
-	if (!(val & INTCSR_INTR_ASSERTED))
-		return IRQ_NONE;
-
-	if (apci1500_ack_irq(dev, Z8536_PA_CMDSTAT_REG))
-		status |= 0x01;	/* port a event (inputs 0-7) */
-
-	if (apci1500_ack_irq(dev, Z8536_PB_CMDSTAT_REG)) {
-		/* Tests if this is an external error */
-		val = inb(dev->iobase + APCI1500_Z8536_PORTB_REG);
-		val &= 0xc0;
-		if (val) {
-			if (val & 0x80)	/* voltage error */
-				status |= 0x40;
-			if (val & 0x40)	/* short circuit error */
-				status |= 0x80;
-		} else {
-			status |= 0x02;	/* port b event (inputs 8-13) */
-		}
-	}
-
-	/*
-	 * NOTE: The 'status' returned by the sample matches the
-	 * interrupt mask information from the APCI-1500 Users Manual.
-	 *
-	 *    Mask     Meaning
-	 * ----------  ------------------------------------------
-	 * 0x00000001  Event 1 has occurred
-	 * 0x00000010  Event 2 has occurred
-	 * 0x00000100  Counter/timer 1 has run down (not implemented)
-	 * 0x00001000  Counter/timer 2 has run down (not implemented)
-	 * 0x00010000  Counter 3 has run down (not implemented)
-	 * 0x00100000  Watchdog has run down (not implemented)
-	 * 0x01000000  Voltage error
-	 * 0x10000000  Short-circuit error
-	 */
-	comedi_buf_write_samples(s, &status, 1);
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int apci1500_di_cancel(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	/* Disables the main interrupt on the board */
-	z8536_write(dev, 0x00, Z8536_INT_CTRL_REG);
-
-	/* Disable Ports A & B */
-	apci1500_port_enable(dev, false);
-
-	/* Ack any pending interrupts */
-	apci1500_ack_irq(dev, Z8536_PA_CMDSTAT_REG);
-	apci1500_ack_irq(dev, Z8536_PB_CMDSTAT_REG);
-
-	/* Disable pattern interrupts */
-	z8536_write(dev, Z8536_CMD_CLR_IE, Z8536_PA_CMDSTAT_REG);
-	z8536_write(dev, Z8536_CMD_CLR_IE, Z8536_PB_CMDSTAT_REG);
-
-	/* Enable Ports A & B */
-	apci1500_port_enable(dev, true);
-
-	return 0;
-}
-
-static int apci1500_di_inttrig_start(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     unsigned int trig_num)
-{
-	struct apci1500_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int pa_mode = Z8536_PAB_MODE_PMS_DISABLE;
-	unsigned int pb_mode = Z8536_PAB_MODE_PMS_DISABLE;
-	unsigned int pa_trig = trig_num & 0x01;
-	unsigned int pb_trig = (trig_num >> 1) & 0x01;
-	bool valid_trig = false;
-	unsigned int val;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	/* Disable Ports A & B */
-	apci1500_port_enable(dev, false);
-
-	/* Set Port A for selected trigger pattern */
-	z8536_write(dev, devpriv->pm[pa_trig] & 0xff, Z8536_PA_PM_REG);
-	z8536_write(dev, devpriv->pt[pa_trig] & 0xff, Z8536_PA_PT_REG);
-	z8536_write(dev, devpriv->pp[pa_trig] & 0xff, Z8536_PA_PP_REG);
-
-	/* Set Port B for selected trigger pattern */
-	z8536_write(dev, (devpriv->pm[pb_trig] >> 8) & 0xff, Z8536_PB_PM_REG);
-	z8536_write(dev, (devpriv->pt[pb_trig] >> 8) & 0xff, Z8536_PB_PT_REG);
-	z8536_write(dev, (devpriv->pp[pb_trig] >> 8) & 0xff, Z8536_PB_PP_REG);
-
-	/* Set Port A trigger mode (if enabled) and enable interrupt */
-	if (devpriv->pm[pa_trig] & 0xff) {
-		pa_mode = pa_trig ? Z8536_PAB_MODE_PMS_AND
-				  : Z8536_PAB_MODE_PMS_OR;
-
-		val = z8536_read(dev, Z8536_PA_MODE_REG);
-		val &= ~Z8536_PAB_MODE_PMS_MASK;
-		val |= (pa_mode | Z8536_PAB_MODE_IMO);
-		z8536_write(dev, val, Z8536_PA_MODE_REG);
-
-		z8536_write(dev, Z8536_CMD_SET_IE, Z8536_PA_CMDSTAT_REG);
-
-		valid_trig = true;
-
-		dev_dbg(dev->class_dev,
-			"Port A configured for %s mode pattern detection\n",
-			pa_trig ? "AND" : "OR");
-	}
-
-	/* Set Port B trigger mode (if enabled) and enable interrupt */
-	if (devpriv->pm[pb_trig] & 0xff00) {
-		pb_mode = pb_trig ? Z8536_PAB_MODE_PMS_AND
-				  : Z8536_PAB_MODE_PMS_OR;
-
-		val = z8536_read(dev, Z8536_PB_MODE_REG);
-		val &= ~Z8536_PAB_MODE_PMS_MASK;
-		val |= (pb_mode | Z8536_PAB_MODE_IMO);
-		z8536_write(dev, val, Z8536_PB_MODE_REG);
-
-		z8536_write(dev, Z8536_CMD_SET_IE, Z8536_PB_CMDSTAT_REG);
-
-		valid_trig = true;
-
-		dev_dbg(dev->class_dev,
-			"Port B configured for %s mode pattern detection\n",
-			pb_trig ? "AND" : "OR");
-	}
-
-	/* Enable Ports A & B */
-	apci1500_port_enable(dev, true);
-
-	if (!valid_trig) {
-		dev_dbg(dev->class_dev,
-			"digital trigger %d is not configured\n", trig_num);
-		return -EINVAL;
-	}
-
-	/* Authorizes the main interrupt on the board */
-	z8536_write(dev, Z8536_INT_CTRL_MIE | Z8536_INT_CTRL_DLC,
-		    Z8536_INT_CTRL_REG);
-
-	return 0;
-}
-
-static int apci1500_di_cmd(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	s->async->inttrig = apci1500_di_inttrig_start;
-
-	return 0;
-}
-
-static int apci1500_di_cmdtest(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	/*
-	 * Internal start source triggers:
-	 *
-	 *   0	AND mode for Port A (digital inputs 0-7)
-	 *	AND mode for Port B (digital inputs 8-13 and internal signals)
-	 *
-	 *   1	OR mode for Port A (digital inputs 0-7)
-	 *	AND mode for Port B (digital inputs 8-13 and internal signals)
-	 *
-	 *   2	AND mode for Port A (digital inputs 0-7)
-	 *	OR mode for Port B (digital inputs 8-13 and internal signals)
-	 *
-	 *   3	OR mode for Port A (digital inputs 0-7)
-	 *	OR mode for Port B (digital inputs 8-13 and internal signals)
-	 */
-	err |= comedi_check_trigger_arg_max(&cmd->start_arg, 3);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-/*
- * The pattern-recognition logic must be configured before the digital
- * input async command is started.
- *
- * Digital input channels 0 to 13 can generate interrupts. Channels 14
- * and 15 are connected to internal board status/diagnostic signals.
- *
- * Channel 14 - Voltage error (the external supply is < 5V)
- * Channel 15 - Short-circuit/overtemperature error
- *
- *	data[0] : INSN_CONFIG_DIGITAL_TRIG
- *	data[1] : trigger number
- *		  0 = AND mode
- *		  1 = OR mode
- *	data[2] : configuration operation:
- *	          COMEDI_DIGITAL_TRIG_DISABLE = no interrupts
- *	          COMEDI_DIGITAL_TRIG_ENABLE_EDGES = edge interrupts
- *	          COMEDI_DIGITAL_TRIG_ENABLE_LEVELS = level interrupts
- *	data[3] : left-shift for data[4] and data[5]
- *	data[4] : rising-edge/high level channels
- *	data[5] : falling-edge/low level channels
- */
-static int apci1500_di_cfg_trig(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct apci1500_private *devpriv = dev->private;
-	unsigned int trig = data[1];
-	unsigned int shift = data[3];
-	unsigned int hi_mask = data[4] << shift;
-	unsigned int lo_mask = data[5] << shift;
-	unsigned int chan_mask = hi_mask | lo_mask;
-	unsigned int old_mask = (1 << shift) - 1;
-	unsigned int pm = devpriv->pm[trig] & old_mask;
-	unsigned int pt = devpriv->pt[trig] & old_mask;
-	unsigned int pp = devpriv->pp[trig] & old_mask;
-
-	if (trig > 1) {
-		dev_dbg(dev->class_dev,
-			"invalid digital trigger number (0=AND, 1=OR)\n");
-		return -EINVAL;
-	}
-
-	if (chan_mask > 0xffff) {
-		dev_dbg(dev->class_dev, "invalid digital trigger channel\n");
-		return -EINVAL;
-	}
-
-	switch (data[2]) {
-	case COMEDI_DIGITAL_TRIG_DISABLE:
-		/* clear trigger configuration */
-		pm = 0;
-		pt = 0;
-		pp = 0;
-		break;
-	case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
-		pm |= chan_mask;	/* enable channels */
-		pt |= chan_mask;	/* enable edge detection */
-		pp |= hi_mask;		/* rising-edge channels */
-		pp &= ~lo_mask;		/* falling-edge channels */
-		break;
-	case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
-		pm |= chan_mask;	/* enable channels */
-		pt &= ~chan_mask;	/* enable level detection */
-		pp |= hi_mask;		/* high level channels */
-		pp &= ~lo_mask;		/* low level channels */
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	/*
-	 * The AND mode trigger can only have one channel (max) enabled
-	 * for edge detection.
-	 */
-	if (trig == 0) {
-		int ret = 0;
-		unsigned int src;
-
-		src = pt & 0xff;
-		if (src)
-			ret |= comedi_check_trigger_is_unique(src);
-
-		src = (pt >> 8) & 0xff;
-		if (src)
-			ret |= comedi_check_trigger_is_unique(src);
-
-		if (ret) {
-			dev_dbg(dev->class_dev,
-				"invalid AND trigger configuration\n");
-			return ret;
-		}
-	}
-
-	/* save the trigger configuration */
-	devpriv->pm[trig] = pm;
-	devpriv->pt[trig] = pt;
-	devpriv->pp[trig] = pp;
-
-	return insn->n;
-}
-
-static int apci1500_di_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	switch (data[0]) {
-	case INSN_CONFIG_DIGITAL_TRIG:
-		return apci1500_di_cfg_trig(dev, s, insn, data);
-	default:
-		return -EINVAL;
-	}
-}
-
-static int apci1500_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct apci1500_private *devpriv = dev->private;
-
-	data[1] = inw(devpriv->addon + APCI1500_DI_REG);
-
-	return insn->n;
-}
-
-static int apci1500_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct apci1500_private *devpriv = dev->private;
-
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, devpriv->addon + APCI1500_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int apci1500_timer_insn_config(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	struct apci1500_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val;
-
-	switch (data[0]) {
-	case INSN_CONFIG_ARM:
-		val = data[1] & s->maxdata;
-		z8536_write(dev, val & 0xff, Z8536_CT_RELOAD_LSB_REG(chan));
-		z8536_write(dev, (val >> 8) & 0xff,
-			    Z8536_CT_RELOAD_MSB_REG(chan));
-
-		apci1500_timer_enable(dev, chan, true);
-		z8536_write(dev, Z8536_CT_CMDSTAT_GCB,
-			    Z8536_CT_CMDSTAT_REG(chan));
-		break;
-	case INSN_CONFIG_DISARM:
-		apci1500_timer_enable(dev, chan, false);
-		break;
-
-	case INSN_CONFIG_GET_COUNTER_STATUS:
-		data[1] = 0;
-		val = z8536_read(dev, Z8536_CT_CMDSTAT_REG(chan));
-		if (val & Z8536_CT_STAT_CIP)
-			data[1] |= COMEDI_COUNTER_COUNTING;
-		if (val & Z8536_CT_CMDSTAT_GCB)
-			data[1] |= COMEDI_COUNTER_ARMED;
-		if (val & Z8536_STAT_IP) {
-			data[1] |= COMEDI_COUNTER_TERMINAL_COUNT;
-			apci1500_ack_irq(dev, Z8536_CT_CMDSTAT_REG(chan));
-		}
-		data[2] = COMEDI_COUNTER_ARMED | COMEDI_COUNTER_COUNTING |
-			  COMEDI_COUNTER_TERMINAL_COUNT;
-		break;
-
-	case INSN_CONFIG_SET_COUNTER_MODE:
-		/* Simulate the 8254 timer modes */
-		switch (data[1]) {
-		case I8254_MODE0:
-			/* Interrupt on Terminal Count */
-			val = Z8536_CT_MODE_ECE |
-			      Z8536_CT_MODE_DCS_ONESHOT;
-			break;
-		case I8254_MODE1:
-			/* Hardware Retriggerable One-Shot */
-			val = Z8536_CT_MODE_ETE |
-			      Z8536_CT_MODE_DCS_ONESHOT;
-			break;
-		case I8254_MODE2:
-			/* Rate Generator */
-			val = Z8536_CT_MODE_CSC |
-			      Z8536_CT_MODE_DCS_PULSE;
-			break;
-		case I8254_MODE3:
-			/* Square Wave Mode */
-			val = Z8536_CT_MODE_CSC |
-			      Z8536_CT_MODE_DCS_SQRWAVE;
-			break;
-		case I8254_MODE4:
-			/* Software Triggered Strobe */
-			val = Z8536_CT_MODE_REB |
-			      Z8536_CT_MODE_DCS_PULSE;
-			break;
-		case I8254_MODE5:
-			/* Hardware Triggered Strobe (watchdog) */
-			val = Z8536_CT_MODE_EOE |
-			      Z8536_CT_MODE_ETE |
-			      Z8536_CT_MODE_REB |
-			      Z8536_CT_MODE_DCS_PULSE;
-			break;
-		default:
-			return -EINVAL;
-		}
-		apci1500_timer_enable(dev, chan, false);
-		z8536_write(dev, val, Z8536_CT_MODE_REG(chan));
-		break;
-
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		if (data[1] > 2)
-			return -EINVAL;
-		devpriv->clk_src = data[1];
-		if (devpriv->clk_src == 2)
-			devpriv->clk_src = 3;
-		outw(devpriv->clk_src, devpriv->addon + APCI1500_CLK_SEL_REG);
-		break;
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		switch (devpriv->clk_src) {
-		case 0:
-			data[1] = 0;		/* 111.86 kHz / 2 */
-			data[2] = 17879;	/* 17879 ns (approx) */
-			break;
-		case 1:
-			data[1] = 1;		/* 3.49 kHz / 2 */
-			data[2] = 573066;	/* 573066 ns (approx) */
-			break;
-		case 3:
-			data[1] = 2;		/* 1.747 kHz / 2 */
-			data[2] = 1164822;	/* 1164822 ns (approx) */
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-
-	case INSN_CONFIG_SET_GATE_SRC:
-		if (chan == 0)
-			return -EINVAL;
-
-		val = z8536_read(dev, Z8536_CT_MODE_REG(chan));
-		val &= Z8536_CT_MODE_EGE;
-		if (data[1] == 1)
-			val |= Z8536_CT_MODE_EGE;
-		else if (data[1] > 1)
-			return -EINVAL;
-		z8536_write(dev, val, Z8536_CT_MODE_REG(chan));
-		break;
-	case INSN_CONFIG_GET_GATE_SRC:
-		if (chan == 0)
-			return -EINVAL;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-	return insn->n;
-}
-
-static int apci1500_timer_insn_write(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int cmd;
-
-	cmd = z8536_read(dev, Z8536_CT_CMDSTAT_REG(chan));
-	cmd &= Z8536_CT_CMDSTAT_GCB;	/* preserve gate */
-	cmd |= Z8536_CT_CMD_TCB;	/* set trigger */
-
-	/* software trigger a timer, it only makes sense to do one write */
-	if (insn->n)
-		z8536_write(dev, cmd, Z8536_CT_CMDSTAT_REG(chan));
-
-	return insn->n;
-}
-
-static int apci1500_timer_insn_read(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int cmd;
-	unsigned int val;
-	int i;
-
-	cmd = z8536_read(dev, Z8536_CT_CMDSTAT_REG(chan));
-	cmd &= Z8536_CT_CMDSTAT_GCB;	/* preserve gate */
-	cmd |= Z8536_CT_CMD_RCC;	/* set RCC */
-
-	for (i = 0; i < insn->n; i++) {
-		z8536_write(dev, cmd, Z8536_CT_CMDSTAT_REG(chan));
-
-		val = z8536_read(dev, Z8536_CT_VAL_MSB_REG(chan)) << 8;
-		val |= z8536_read(dev, Z8536_CT_VAL_LSB_REG(chan));
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int apci1500_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct apci1500_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->iobase = pci_resource_start(pcidev, 1);
-	devpriv->amcc = pci_resource_start(pcidev, 0);
-	devpriv->addon = pci_resource_start(pcidev, 2);
-
-	z8536_reset(dev);
-
-	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, apci1500_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci1500_di_insn_bits;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->len_chanlist	= 1;
-		s->insn_config	= apci1500_di_insn_config;
-		s->do_cmdtest	= apci1500_di_cmdtest;
-		s->do_cmd	= apci1500_di_cmd;
-		s->cancel	= apci1500_di_cancel;
-	}
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci1500_do_insn_bits;
-
-	/* reset all the digital outputs */
-	outw(0x0, devpriv->addon + APCI1500_DO_REG);
-
-	/* Counter/Timer(Watchdog) subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_TIMER;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= 3;
-	s->maxdata	= 0xffff;
-	s->range_table	= &range_unknown;
-	s->insn_config	= apci1500_timer_insn_config;
-	s->insn_write	= apci1500_timer_insn_write;
-	s->insn_read	= apci1500_timer_insn_read;
-
-	/* Enable the PCI interrupt */
-	if (dev->irq) {
-		outl(0x2000 | INTCSR_INBOX_FULL_INT,
-		     devpriv->amcc + AMCC_OP_REG_INTCSR);
-		inl(devpriv->amcc + AMCC_OP_REG_IMB1);
-		inl(devpriv->amcc + AMCC_OP_REG_INTCSR);
-		outl(INTCSR_INBOX_INTR_STATUS | 0x2000 | INTCSR_INBOX_FULL_INT,
-		     devpriv->amcc + AMCC_OP_REG_INTCSR);
-	}
-
-	return 0;
-}
-
-static void apci1500_detach(struct comedi_device *dev)
-{
-	struct apci1500_private *devpriv = dev->private;
-
-	if (devpriv->amcc)
-		outl(0x0, devpriv->amcc + AMCC_OP_REG_INTCSR);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci1500_driver = {
-	.driver_name	= "addi_apci_1500",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci1500_auto_attach,
-	.detach		= apci1500_detach,
-};
-
-static int apci1500_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci1500_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci1500_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_AMCC, 0x80fc) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci1500_pci_table);
-
-static struct pci_driver apci1500_pci_driver = {
-	.name		= "addi_apci_1500",
-	.id_table	= apci1500_pci_table,
-	.probe		= apci1500_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci1500_driver, apci1500_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("ADDI-DATA APCI-1500, 16 channel DI / 16 channel DO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_1516.c b/drivers/staging/comedi/drivers/addi_apci_1516.c
deleted file mode 100644
index f1f8b1c422a7..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_1516.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- * addi_apci_1516.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- * Project manager: Eric Stolz
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-#include "addi_watchdog.h"
-
-/*
- * PCI bar 1 I/O Register map - Digital input/output
- */
-#define APCI1516_DI_REG			0x00
-#define APCI1516_DO_REG			0x04
-
-/*
- * PCI bar 2 I/O Register map - Watchdog (APCI-1516 and APCI-2016)
- */
-#define APCI1516_WDOG_REG		0x00
-
-enum apci1516_boardid {
-	BOARD_APCI1016,
-	BOARD_APCI1516,
-	BOARD_APCI2016,
-};
-
-struct apci1516_boardinfo {
-	const char *name;
-	int di_nchan;
-	int do_nchan;
-	int has_wdog;
-};
-
-static const struct apci1516_boardinfo apci1516_boardtypes[] = {
-	[BOARD_APCI1016] = {
-		.name		= "apci1016",
-		.di_nchan	= 16,
-	},
-	[BOARD_APCI1516] = {
-		.name		= "apci1516",
-		.di_nchan	= 8,
-		.do_nchan	= 8,
-		.has_wdog	= 1,
-	},
-	[BOARD_APCI2016] = {
-		.name		= "apci2016",
-		.do_nchan	= 16,
-		.has_wdog	= 1,
-	},
-};
-
-struct apci1516_private {
-	unsigned long wdog_iobase;
-};
-
-static int apci1516_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	data[1] = inw(dev->iobase + APCI1516_DI_REG);
-
-	return insn->n;
-}
-
-static int apci1516_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	s->state = inw(dev->iobase + APCI1516_DO_REG);
-
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + APCI1516_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int apci1516_reset(struct comedi_device *dev)
-{
-	const struct apci1516_boardinfo *board = dev->board_ptr;
-	struct apci1516_private *devpriv = dev->private;
-
-	if (!board->has_wdog)
-		return 0;
-
-	outw(0x0, dev->iobase + APCI1516_DO_REG);
-
-	addi_watchdog_reset(devpriv->wdog_iobase);
-
-	return 0;
-}
-
-static int apci1516_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct apci1516_boardinfo *board = NULL;
-	struct apci1516_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	if (context < ARRAY_SIZE(apci1516_boardtypes))
-		board = &apci1516_boardtypes[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->iobase = pci_resource_start(pcidev, 1);
-	devpriv->wdog_iobase = pci_resource_start(pcidev, 2);
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Initialize the digital input subdevice */
-	s = &dev->subdevices[0];
-	if (board->di_nchan) {
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= board->di_nchan;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= apci1516_di_insn_bits;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Initialize the digital output subdevice */
-	s = &dev->subdevices[1];
-	if (board->do_nchan) {
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= board->do_nchan;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= apci1516_do_insn_bits;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Initialize the watchdog subdevice */
-	s = &dev->subdevices[2];
-	if (board->has_wdog) {
-		ret = addi_watchdog_init(s, devpriv->wdog_iobase);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	apci1516_reset(dev);
-	return 0;
-}
-
-static void apci1516_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		apci1516_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci1516_driver = {
-	.driver_name	= "addi_apci_1516",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci1516_auto_attach,
-	.detach		= apci1516_detach,
-};
-
-static int apci1516_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci1516_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci1516_pci_table[] = {
-	{ PCI_VDEVICE(ADDIDATA, 0x1000), BOARD_APCI1016 },
-	{ PCI_VDEVICE(ADDIDATA, 0x1001), BOARD_APCI1516 },
-	{ PCI_VDEVICE(ADDIDATA, 0x1002), BOARD_APCI2016 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci1516_pci_table);
-
-static struct pci_driver apci1516_pci_driver = {
-	.name		= "addi_apci_1516",
-	.id_table	= apci1516_pci_table,
-	.probe		= apci1516_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci1516_driver, apci1516_pci_driver);
-
-MODULE_DESCRIPTION("ADDI-DATA APCI-1016/1516/2016, 16 channel DIO boards");
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_1564.c b/drivers/staging/comedi/drivers/addi_apci_1564.c
deleted file mode 100644
index f1ccfbd4c578..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_1564.c
+++ /dev/null
@@ -1,598 +0,0 @@
-/*
- * addi_apci_1564.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it under
- * the terms of the GNU General Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at your option) any later
- * version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
- * details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-
-#include "../comedi_pci.h"
-#include "addi_tcw.h"
-#include "addi_watchdog.h"
-
-/*
- * PCI BAR 0
- *
- * PLD Revision 1.0 I/O Mapping
- *   0x00         93C76 EEPROM
- *   0x04 - 0x18  Timer 12-Bit
- *
- * PLD Revision 2.x I/O Mapping
- *   0x00         93C76 EEPROM
- *   0x04 - 0x14  Digital Input
- *   0x18 - 0x25  Digital Output
- *   0x28 - 0x44  Watchdog 8-Bit
- *   0x48 - 0x64  Timer 12-Bit
- */
-#define APCI1564_EEPROM_REG			0x00
-#define APCI1564_EEPROM_VCC_STATUS		BIT(8)
-#define APCI1564_EEPROM_TO_REV(x)		(((x) >> 4) & 0xf)
-#define APCI1564_EEPROM_DI			BIT(3)
-#define APCI1564_EEPROM_DO			BIT(2)
-#define APCI1564_EEPROM_CS			BIT(1)
-#define APCI1564_EEPROM_CLK			BIT(0)
-#define APCI1564_REV1_TIMER_IOBASE		0x04
-#define APCI1564_REV2_MAIN_IOBASE		0x04
-#define APCI1564_REV2_TIMER_IOBASE		0x48
-
-/*
- * PCI BAR 1
- *
- * PLD Revision 1.0 I/O Mapping
- *   0x00 - 0x10  Digital Input
- *   0x14 - 0x20  Digital Output
- *   0x24 - 0x3c  Watchdog 8-Bit
- *
- * PLD Revision 2.x I/O Mapping
- *   0x00         Counter_0
- *   0x20         Counter_1
- *   0x30         Counter_3
- */
-#define APCI1564_REV1_MAIN_IOBASE		0x00
-
-/*
- * dev->iobase Register Map
- *   PLD Revision 1.0 - PCI BAR 1 + 0x00
- *   PLD Revision 2.x - PCI BAR 0 + 0x04
- */
-#define APCI1564_DI_REG				0x00
-#define APCI1564_DI_INT_MODE1_REG		0x04
-#define APCI1564_DI_INT_MODE2_REG		0x08
-#define APCI1564_DI_INT_STATUS_REG		0x0c
-#define APCI1564_DI_IRQ_REG			0x10
-#define APCI1564_DI_IRQ_ENA			BIT(2)
-#define APCI1564_DI_IRQ_MODE			BIT(1)	/* 1=AND, 0=OR */
-#define APCI1564_DO_REG				0x14
-#define APCI1564_DO_INT_CTRL_REG		0x18
-#define APCI1564_DO_INT_CTRL_CC_INT_ENA		BIT(1)
-#define APCI1564_DO_INT_CTRL_VCC_INT_ENA	BIT(0)
-#define APCI1564_DO_INT_STATUS_REG		0x1c
-#define APCI1564_DO_INT_STATUS_CC		BIT(1)
-#define APCI1564_DO_INT_STATUS_VCC		BIT(0)
-#define APCI1564_DO_IRQ_REG			0x20
-#define APCI1564_DO_IRQ_INTR			BIT(0)
-#define APCI1564_WDOG_REG			0x24
-#define APCI1564_WDOG_RELOAD_REG		0x28
-#define APCI1564_WDOG_TIMEBASE_REG		0x2c
-#define APCI1564_WDOG_CTRL_REG			0x30
-#define APCI1564_WDOG_STATUS_REG		0x34
-#define APCI1564_WDOG_IRQ_REG			0x38
-#define APCI1564_WDOG_WARN_TIMEVAL_REG		0x3c
-#define APCI1564_WDOG_WARN_TIMEBASE_REG		0x40
-
-/*
- * devpriv->timer Register Map (see addi_tcw.h for register/bit defines)
- *   PLD Revision 1.0 - PCI BAR 0 + 0x04
- *   PLD Revision 2.x - PCI BAR 0 + 0x48
- */
-
-/*
- * devpriv->counters Register Map (see addi_tcw.h for register/bit defines)
- *   PLD Revision 2.x - PCI BAR 1 + 0x00
- */
-#define APCI1564_COUNTER(x)			((x) * 0x20)
-
-struct apci1564_private {
-	unsigned long eeprom;	/* base address of EEPROM register */
-	unsigned long timer;	/* base address of 12-bit timer */
-	unsigned long counters;	/* base address of 32-bit counters */
-	unsigned int mode1;	/* riding-edge/high level channels */
-	unsigned int mode2;	/* falling-edge/low level channels */
-	unsigned int ctrl;	/* interrupt mode OR (edge) . AND (level) */
-	struct task_struct *tsk_current;
-};
-
-#include "addi-data/hwdrv_apci1564.c"
-
-static int apci1564_reset(struct comedi_device *dev)
-{
-	struct apci1564_private *devpriv = dev->private;
-
-	/* Disable the input interrupts and reset status register */
-	outl(0x0, dev->iobase + APCI1564_DI_IRQ_REG);
-	inl(dev->iobase + APCI1564_DI_INT_STATUS_REG);
-	outl(0x0, dev->iobase + APCI1564_DI_INT_MODE1_REG);
-	outl(0x0, dev->iobase + APCI1564_DI_INT_MODE2_REG);
-
-	/* Reset the output channels and disable interrupts */
-	outl(0x0, dev->iobase + APCI1564_DO_REG);
-	outl(0x0, dev->iobase + APCI1564_DO_INT_CTRL_REG);
-
-	/* Reset the watchdog registers */
-	addi_watchdog_reset(dev->iobase + APCI1564_WDOG_REG);
-
-	/* Reset the timer registers */
-	outl(0x0, devpriv->timer + ADDI_TCW_CTRL_REG);
-	outl(0x0, devpriv->timer + ADDI_TCW_RELOAD_REG);
-
-	if (devpriv->counters) {
-		unsigned long iobase = devpriv->counters + ADDI_TCW_CTRL_REG;
-
-		/* Reset the counter registers */
-		outl(0x0, iobase + APCI1564_COUNTER(0));
-		outl(0x0, iobase + APCI1564_COUNTER(1));
-		outl(0x0, iobase + APCI1564_COUNTER(2));
-	}
-
-	return 0;
-}
-
-static irqreturn_t apci1564_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct apci1564_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int status;
-	unsigned int ctrl;
-	unsigned int chan;
-
-	status = inl(dev->iobase + APCI1564_DI_IRQ_REG);
-	if (status & APCI1564_DI_IRQ_ENA) {
-		/* disable the interrupt */
-		outl(status & ~APCI1564_DI_IRQ_ENA,
-		     dev->iobase + APCI1564_DI_IRQ_REG);
-
-		s->state = inl(dev->iobase + APCI1564_DI_INT_STATUS_REG) &
-			   0xffff;
-		comedi_buf_write_samples(s, &s->state, 1);
-		comedi_handle_events(dev, s);
-
-		/* enable the interrupt */
-		outl(status, dev->iobase + APCI1564_DI_IRQ_REG);
-	}
-
-	status = inl(devpriv->timer + ADDI_TCW_IRQ_REG);
-	if (status & 0x01) {
-		/*  Disable Timer Interrupt */
-		ctrl = inl(devpriv->timer + ADDI_TCW_CTRL_REG);
-		outl(0x0, devpriv->timer + ADDI_TCW_CTRL_REG);
-
-		/* Send a signal to from kernel to user space */
-		send_sig(SIGIO, devpriv->tsk_current, 0);
-
-		/*  Enable Timer Interrupt */
-		outl(ctrl, devpriv->timer + ADDI_TCW_CTRL_REG);
-	}
-
-	if (devpriv->counters) {
-		for (chan = 0; chan < 4; chan++) {
-			unsigned long iobase;
-
-			iobase = devpriv->counters + APCI1564_COUNTER(chan);
-
-			status = inl(iobase + ADDI_TCW_IRQ_REG);
-			if (status & 0x01) {
-				/*  Disable Counter Interrupt */
-				ctrl = inl(iobase + ADDI_TCW_CTRL_REG);
-				outl(0x0, iobase + ADDI_TCW_CTRL_REG);
-
-				/* Send a signal to from kernel to user space */
-				send_sig(SIGIO, devpriv->tsk_current, 0);
-
-				/*  Enable Counter Interrupt */
-				outl(ctrl, iobase + ADDI_TCW_CTRL_REG);
-			}
-		}
-	}
-
-	return IRQ_HANDLED;
-}
-
-static int apci1564_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	data[1] = inl(dev->iobase + APCI1564_DI_REG);
-
-	return insn->n;
-}
-
-static int apci1564_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	s->state = inl(dev->iobase + APCI1564_DO_REG);
-
-	if (comedi_dio_update_state(s, data))
-		outl(s->state, dev->iobase + APCI1564_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int apci1564_diag_insn_bits(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	data[1] = inl(dev->iobase + APCI1564_DO_INT_STATUS_REG) & 3;
-
-	return insn->n;
-}
-
-/*
- * Change-Of-State (COS) interrupt configuration
- *
- * Channels 0 to 15 are interruptible. These channels can be configured
- * to generate interrupts based on AND/OR logic for the desired channels.
- *
- *	OR logic
- *		- reacts to rising or falling edges
- *		- interrupt is generated when any enabled channel
- *		  meet the desired interrupt condition
- *
- *	AND logic
- *		- reacts to changes in level of the selected inputs
- *		- interrupt is generated when all enabled channels
- *		  meet the desired interrupt condition
- *		- after an interrupt, a change in level must occur on
- *		  the selected inputs to release the IRQ logic
- *
- * The COS interrupt must be configured before it can be enabled.
- *
- *	data[0] : INSN_CONFIG_DIGITAL_TRIG
- *	data[1] : trigger number (= 0)
- *	data[2] : configuration operation:
- *	          COMEDI_DIGITAL_TRIG_DISABLE = no interrupts
- *	          COMEDI_DIGITAL_TRIG_ENABLE_EDGES = OR (edge) interrupts
- *	          COMEDI_DIGITAL_TRIG_ENABLE_LEVELS = AND (level) interrupts
- *	data[3] : left-shift for data[4] and data[5]
- *	data[4] : rising-edge/high level channels
- *	data[5] : falling-edge/low level channels
- */
-static int apci1564_cos_insn_config(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct apci1564_private *devpriv = dev->private;
-	unsigned int shift, oldmask;
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIGITAL_TRIG:
-		if (data[1] != 0)
-			return -EINVAL;
-		shift = data[3];
-		oldmask = (1U << shift) - 1;
-		switch (data[2]) {
-		case COMEDI_DIGITAL_TRIG_DISABLE:
-			devpriv->ctrl = 0;
-			devpriv->mode1 = 0;
-			devpriv->mode2 = 0;
-			outl(0x0, dev->iobase + APCI1564_DI_IRQ_REG);
-			inl(dev->iobase + APCI1564_DI_INT_STATUS_REG);
-			outl(0x0, dev->iobase + APCI1564_DI_INT_MODE1_REG);
-			outl(0x0, dev->iobase + APCI1564_DI_INT_MODE2_REG);
-			break;
-		case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
-			if (devpriv->ctrl != APCI1564_DI_IRQ_ENA) {
-				/* switching to 'OR' mode */
-				devpriv->ctrl = APCI1564_DI_IRQ_ENA;
-				/* wipe old channels */
-				devpriv->mode1 = 0;
-				devpriv->mode2 = 0;
-			} else {
-				/* preserve unspecified channels */
-				devpriv->mode1 &= oldmask;
-				devpriv->mode2 &= oldmask;
-			}
-			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
-			break;
-		case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
-			if (devpriv->ctrl != (APCI1564_DI_IRQ_ENA |
-					      APCI1564_DI_IRQ_MODE)) {
-				/* switching to 'AND' mode */
-				devpriv->ctrl = APCI1564_DI_IRQ_ENA |
-						APCI1564_DI_IRQ_MODE;
-				/* wipe old channels */
-				devpriv->mode1 = 0;
-				devpriv->mode2 = 0;
-			} else {
-				/* preserve unspecified channels */
-				devpriv->mode1 &= oldmask;
-				devpriv->mode2 &= oldmask;
-			}
-			/* configure specified channels */
-			devpriv->mode1 |= data[4] << shift;
-			devpriv->mode2 |= data[5] << shift;
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-	return insn->n;
-}
-
-static int apci1564_cos_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	data[1] = s->state;
-
-	return 0;
-}
-
-static int apci1564_cos_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-/*
- * Change-Of-State (COS) 'do_cmd' operation
- *
- * Enable the COS interrupt as configured by apci1564_cos_insn_config().
- */
-static int apci1564_cos_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct apci1564_private *devpriv = dev->private;
-
-	if (!devpriv->ctrl) {
-		dev_warn(dev->class_dev,
-			 "Interrupts disabled due to mode configuration!\n");
-		return -EINVAL;
-	}
-
-	outl(devpriv->mode1, dev->iobase + APCI1564_DI_INT_MODE1_REG);
-	outl(devpriv->mode2, dev->iobase + APCI1564_DI_INT_MODE2_REG);
-	outl(devpriv->ctrl, dev->iobase + APCI1564_DI_IRQ_REG);
-
-	return 0;
-}
-
-static int apci1564_cos_cancel(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	outl(0x0, dev->iobase + APCI1564_DI_IRQ_REG);
-	inl(dev->iobase + APCI1564_DI_INT_STATUS_REG);
-	outl(0x0, dev->iobase + APCI1564_DI_INT_MODE1_REG);
-	outl(0x0, dev->iobase + APCI1564_DI_INT_MODE2_REG);
-
-	return 0;
-}
-
-static int apci1564_auto_attach(struct comedi_device *dev,
-				unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct apci1564_private *devpriv;
-	struct comedi_subdevice *s;
-	unsigned int val;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	/* read the EEPROM register and check the I/O map revision */
-	devpriv->eeprom = pci_resource_start(pcidev, 0);
-	val = inl(devpriv->eeprom + APCI1564_EEPROM_REG);
-	if (APCI1564_EEPROM_TO_REV(val) == 0) {
-		/* PLD Revision 1.0 I/O Mapping */
-		dev->iobase = pci_resource_start(pcidev, 1) +
-			      APCI1564_REV1_MAIN_IOBASE;
-		devpriv->timer = devpriv->eeprom + APCI1564_REV1_TIMER_IOBASE;
-	} else {
-		/* PLD Revision 2.x I/O Mapping */
-		dev->iobase = devpriv->eeprom + APCI1564_REV2_MAIN_IOBASE;
-		devpriv->timer = devpriv->eeprom + APCI1564_REV2_TIMER_IOBASE;
-		devpriv->counters = pci_resource_start(pcidev, 1);
-	}
-
-	apci1564_reset(dev);
-
-	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, apci1564_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 7);
-	if (ret)
-		return ret;
-
-	/*  Allocate and Initialise DI Subdevice Structures */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 32;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci1564_di_insn_bits;
-
-	/*  Allocate and Initialise DO Subdevice Structures */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 32;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci1564_do_insn_bits;
-
-	/* Change-Of-State (COS) interrupt subdevice */
-	s = &dev->subdevices[2];
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
-		s->n_chan	= 1;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->len_chanlist	= 1;
-		s->insn_config	= apci1564_cos_insn_config;
-		s->insn_bits	= apci1564_cos_insn_bits;
-		s->do_cmdtest	= apci1564_cos_cmdtest;
-		s->do_cmd	= apci1564_cos_cmd;
-		s->cancel	= apci1564_cos_cancel;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Timer subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_TIMER;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &range_digital;
-	s->insn_config	= apci1564_timer_insn_config;
-	s->insn_write	= apci1564_timer_insn_write;
-	s->insn_read	= apci1564_timer_insn_read;
-
-	/* Counter subdevice */
-	s = &dev->subdevices[4];
-	if (devpriv->counters) {
-		s->type		= COMEDI_SUBD_COUNTER;
-		s->subdev_flags	= SDF_WRITABLE | SDF_READABLE | SDF_LSAMPL;
-		s->n_chan	= 3;
-		s->maxdata	= 0xffffffff;
-		s->range_table	= &range_digital;
-		s->insn_config	= apci1564_counter_insn_config;
-		s->insn_write	= apci1564_counter_insn_write;
-		s->insn_read	= apci1564_counter_insn_read;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Initialize the watchdog subdevice */
-	s = &dev->subdevices[5];
-	ret = addi_watchdog_init(s, dev->iobase + APCI1564_WDOG_REG);
-	if (ret)
-		return ret;
-
-	/* Initialize the diagnostic status subdevice */
-	s = &dev->subdevices[6];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci1564_diag_insn_bits;
-
-	return 0;
-}
-
-static void apci1564_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		apci1564_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci1564_driver = {
-	.driver_name	= "addi_apci_1564",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci1564_auto_attach,
-	.detach		= apci1564_detach,
-};
-
-static int apci1564_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci1564_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci1564_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1006) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci1564_pci_table);
-
-static struct pci_driver apci1564_pci_driver = {
-	.name		= "addi_apci_1564",
-	.id_table	= apci1564_pci_table,
-	.probe		= apci1564_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci1564_driver, apci1564_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("ADDI-DATA APCI-1564, 32 channel DI / 32 channel DO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c b/drivers/staging/comedi/drivers/addi_apci_16xx.c
deleted file mode 100644
index c63133a12a4e..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_16xx.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * addi_apci_16xx.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- * Project manager: S. Weber
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-/*
- * Register I/O map
- */
-#define APCI16XX_IN_REG(x)		(((x) * 4) + 0x08)
-#define APCI16XX_OUT_REG(x)		(((x) * 4) + 0x14)
-#define APCI16XX_DIR_REG(x)		(((x) * 4) + 0x20)
-
-enum apci16xx_boardid {
-	BOARD_APCI1648,
-	BOARD_APCI1696,
-};
-
-struct apci16xx_boardinfo {
-	const char *name;
-	int n_chan;
-};
-
-static const struct apci16xx_boardinfo apci16xx_boardtypes[] = {
-	[BOARD_APCI1648] = {
-		.name		= "apci1648",
-		.n_chan		= 48,		/* 2 subdevices */
-	},
-	[BOARD_APCI1696] = {
-		.name		= "apci1696",
-		.n_chan		= 96,		/* 3 subdevices */
-	},
-};
-
-static int apci16xx_insn_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x000000ff;
-	else if (chan < 16)
-		mask = 0x0000ff00;
-	else if (chan < 24)
-		mask = 0x00ff0000;
-	else
-		mask = 0xff000000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(s->index));
-
-	return insn->n;
-}
-
-static int apci16xx_dio_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index));
-
-	data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index));
-
-	return insn->n;
-}
-
-static int apci16xx_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct apci16xx_boardinfo *board = NULL;
-	struct comedi_subdevice *s;
-	unsigned int n_subdevs;
-	unsigned int last;
-	int i;
-	int ret;
-
-	if (context < ARRAY_SIZE(apci16xx_boardtypes))
-		board = &apci16xx_boardtypes[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->iobase = pci_resource_start(pcidev, 0);
-
-	/*
-	 * Work out the nubmer of subdevices needed to support all the
-	 * digital i/o channels on the board. Each subdevice supports
-	 * up to 32 channels.
-	 */
-	n_subdevs = board->n_chan / 32;
-	if ((n_subdevs * 32) < board->n_chan) {
-		last = board->n_chan - (n_subdevs * 32);
-		n_subdevs++;
-	} else {
-		last = 0;
-	}
-
-	ret = comedi_alloc_subdevices(dev, n_subdevs);
-	if (ret)
-		return ret;
-
-	/* Initialize the TTL digital i/o subdevices */
-	for (i = 0; i < n_subdevs; i++) {
-		s = &dev->subdevices[i];
-		s->type		= COMEDI_SUBD_DIO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-		s->n_chan	= ((i * 32) < board->n_chan) ? 32 : last;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_config	= apci16xx_insn_config;
-		s->insn_bits	= apci16xx_dio_insn_bits;
-
-		/* Default all channels to inputs */
-		s->io_bits	= 0;
-		outl(s->io_bits, dev->iobase + APCI16XX_DIR_REG(i));
-	}
-
-	return 0;
-}
-
-static struct comedi_driver apci16xx_driver = {
-	.driver_name	= "addi_apci_16xx",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci16xx_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int apci16xx_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci16xx_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci16xx_pci_table[] = {
-	{ PCI_VDEVICE(ADDIDATA, 0x1009), BOARD_APCI1648 },
-	{ PCI_VDEVICE(ADDIDATA, 0x100a), BOARD_APCI1696 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci16xx_pci_table);
-
-static struct pci_driver apci16xx_pci_driver = {
-	.name		= "addi_apci_16xx",
-	.id_table	= apci16xx_pci_table,
-	.probe		= apci16xx_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci16xx_driver, apci16xx_pci_driver);
-
-MODULE_DESCRIPTION("ADDI-DATA APCI-1648/1696, TTL I/O boards");
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_2032.c b/drivers/staging/comedi/drivers/addi_apci_2032.c
deleted file mode 100644
index ad715253bdcc..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_2032.c
+++ /dev/null
@@ -1,339 +0,0 @@
-/*
- * addi_apci_2032.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- * Project manager: Eric Stolz
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-#include "../comedi_pci.h"
-#include "addi_watchdog.h"
-
-/*
- * PCI bar 1 I/O Register map
- */
-#define APCI2032_DO_REG			0x00
-#define APCI2032_INT_CTRL_REG		0x04
-#define APCI2032_INT_CTRL_VCC_ENA	(1 << 0)
-#define APCI2032_INT_CTRL_CC_ENA	(1 << 1)
-#define APCI2032_INT_STATUS_REG		0x08
-#define APCI2032_INT_STATUS_VCC		(1 << 0)
-#define APCI2032_INT_STATUS_CC		(1 << 1)
-#define APCI2032_STATUS_REG		0x0c
-#define APCI2032_STATUS_IRQ		(1 << 0)
-#define APCI2032_WDOG_REG		0x10
-
-struct apci2032_int_private {
-	spinlock_t spinlock;
-	bool active;
-	unsigned char enabled_isns;
-};
-
-static int apci2032_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	s->state = inl(dev->iobase + APCI2032_DO_REG);
-
-	if (comedi_dio_update_state(s, data))
-		outl(s->state, dev->iobase + APCI2032_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int apci2032_int_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	data[1] = inl(dev->iobase + APCI2032_INT_STATUS_REG) & 3;
-	return insn->n;
-}
-
-static void apci2032_int_stop(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct apci2032_int_private *subpriv = s->private;
-
-	subpriv->active = false;
-	subpriv->enabled_isns = 0;
-	outl(0x0, dev->iobase + APCI2032_INT_CTRL_REG);
-}
-
-static int apci2032_int_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int apci2032_int_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	struct apci2032_int_private *subpriv = s->private;
-	unsigned char enabled_isns;
-	unsigned int n;
-	unsigned long flags;
-
-	enabled_isns = 0;
-	for (n = 0; n < cmd->chanlist_len; n++)
-		enabled_isns |= 1 << CR_CHAN(cmd->chanlist[n]);
-
-	spin_lock_irqsave(&subpriv->spinlock, flags);
-
-	subpriv->enabled_isns = enabled_isns;
-	subpriv->active = true;
-	outl(enabled_isns, dev->iobase + APCI2032_INT_CTRL_REG);
-
-	spin_unlock_irqrestore(&subpriv->spinlock, flags);
-
-	return 0;
-}
-
-static int apci2032_int_cancel(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	struct apci2032_int_private *subpriv = s->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&subpriv->spinlock, flags);
-	if (subpriv->active)
-		apci2032_int_stop(dev, s);
-	spin_unlock_irqrestore(&subpriv->spinlock, flags);
-
-	return 0;
-}
-
-static irqreturn_t apci2032_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	struct apci2032_int_private *subpriv;
-	unsigned int val;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	/* Check if VCC OR CC interrupt has occurred */
-	val = inl(dev->iobase + APCI2032_STATUS_REG) & APCI2032_STATUS_IRQ;
-	if (!val)
-		return IRQ_NONE;
-
-	subpriv = s->private;
-	spin_lock(&subpriv->spinlock);
-
-	val = inl(dev->iobase + APCI2032_INT_STATUS_REG) & 3;
-	/* Disable triggered interrupt sources. */
-	outl(~val & 3, dev->iobase + APCI2032_INT_CTRL_REG);
-	/*
-	 * Note: We don't reenable the triggered interrupt sources because they
-	 * are level-sensitive, hardware error status interrupt sources and
-	 * they'd keep triggering interrupts repeatedly.
-	 */
-
-	if (subpriv->active && (val & subpriv->enabled_isns) != 0) {
-		unsigned short bits = 0;
-		int i;
-
-		/* Bits in scan data correspond to indices in channel list. */
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-			if (val & (1 << chan))
-				bits |= (1 << i);
-		}
-
-		comedi_buf_write_samples(s, &bits, 1);
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    s->async->scans_done >= cmd->stop_arg)
-			s->async->events |= COMEDI_CB_EOA;
-	}
-
-	spin_unlock(&subpriv->spinlock);
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int apci2032_reset(struct comedi_device *dev)
-{
-	outl(0x0, dev->iobase + APCI2032_DO_REG);
-	outl(0x0, dev->iobase + APCI2032_INT_CTRL_REG);
-
-	addi_watchdog_reset(dev->iobase + APCI2032_WDOG_REG);
-
-	return 0;
-}
-
-static int apci2032_auto_attach(struct comedi_device *dev,
-				unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 1);
-	apci2032_reset(dev);
-
-	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, apci2032_interrupt,
-				  IRQF_SHARED, dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Initialize the digital output subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 32;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci2032_do_insn_bits;
-
-	/* Initialize the watchdog subdevice */
-	s = &dev->subdevices[1];
-	ret = addi_watchdog_init(s, dev->iobase + APCI2032_WDOG_REG);
-	if (ret)
-		return ret;
-
-	/* Initialize the interrupt subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci2032_int_insn_bits;
-	if (dev->irq) {
-		struct apci2032_int_private *subpriv;
-
-		dev->read_subdev = s;
-		subpriv = kzalloc(sizeof(*subpriv), GFP_KERNEL);
-		if (!subpriv)
-			return -ENOMEM;
-		spin_lock_init(&subpriv->spinlock);
-		s->private	= subpriv;
-		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ | SDF_PACKED;
-		s->len_chanlist = 2;
-		s->do_cmdtest	= apci2032_int_cmdtest;
-		s->do_cmd	= apci2032_int_cmd;
-		s->cancel	= apci2032_int_cancel;
-	}
-
-	return 0;
-}
-
-static void apci2032_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		apci2032_reset(dev);
-	comedi_pci_detach(dev);
-	if (dev->read_subdev)
-		kfree(dev->read_subdev->private);
-}
-
-static struct comedi_driver apci2032_driver = {
-	.driver_name	= "addi_apci_2032",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci2032_auto_attach,
-	.detach		= apci2032_detach,
-};
-
-static int apci2032_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci2032_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci2032_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1004) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci2032_pci_table);
-
-static struct pci_driver apci2032_pci_driver = {
-	.name		= "addi_apci_2032",
-	.id_table	= apci2032_pci_table,
-	.probe		= apci2032_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci2032_driver, apci2032_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("ADDI-DATA APCI-2032, 32 channel DO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_2200.c b/drivers/staging/comedi/drivers/addi_apci_2200.c
deleted file mode 100644
index 2b382a52d80d..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_2200.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * addi_apci_2200.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- * Project manager: Eric Stolz
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-#include "addi_watchdog.h"
-
-/*
- * I/O Register Map
- */
-#define APCI2200_DI_REG			0x00
-#define APCI2200_DO_REG			0x04
-#define APCI2200_WDOG_REG		0x08
-
-static int apci2200_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	data[1] = inw(dev->iobase + APCI2200_DI_REG);
-
-	return insn->n;
-}
-
-static int apci2200_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	s->state = inw(dev->iobase + APCI2200_DO_REG);
-
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + APCI2200_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int apci2200_reset(struct comedi_device *dev)
-{
-	outw(0x0, dev->iobase + APCI2200_DO_REG);
-
-	addi_watchdog_reset(dev->iobase + APCI2200_WDOG_REG);
-
-	return 0;
-}
-
-static int apci2200_auto_attach(struct comedi_device *dev,
-				unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->iobase = pci_resource_start(pcidev, 1);
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Initialize the digital input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci2200_di_insn_bits;
-
-	/* Initialize the digital output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci2200_do_insn_bits;
-
-	/* Initialize the watchdog subdevice */
-	s = &dev->subdevices[2];
-	ret = addi_watchdog_init(s, dev->iobase + APCI2200_WDOG_REG);
-	if (ret)
-		return ret;
-
-	apci2200_reset(dev);
-	return 0;
-}
-
-static void apci2200_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		apci2200_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci2200_driver = {
-	.driver_name	= "addi_apci_2200",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci2200_auto_attach,
-	.detach		= apci2200_detach,
-};
-
-static int apci2200_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci2200_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci2200_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1005) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci2200_pci_table);
-
-static struct pci_driver apci2200_pci_driver = {
-	.name		= "addi_apci_2200",
-	.id_table	= apci2200_pci_table,
-	.probe		= apci2200_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci2200_driver, apci2200_pci_driver);
-
-MODULE_DESCRIPTION("ADDI-DATA APCI-2200 Relay board, optically isolated");
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c b/drivers/staging/comedi/drivers/addi_apci_3120.c
deleted file mode 100644
index 5bfd43d5c889..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_3120.c
+++ /dev/null
@@ -1,1129 +0,0 @@
-/*
- * addi_apci_3120.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-#include "amcc_s5933.h"
-
-/*
- * PCI BAR 0 register map (devpriv->amcc)
- * see amcc_s5933.h for register and bit defines
- */
-#define APCI3120_FIFO_ADVANCE_ON_BYTE_2		(1 << 29)
-
-/*
- * PCI BAR 1 register map (dev->iobase)
- */
-#define APCI3120_AI_FIFO_REG			0x00
-#define APCI3120_CTRL_REG			0x00
-#define APCI3120_CTRL_EXT_TRIG			(1 << 15)
-#define APCI3120_CTRL_GATE(x)			(1 << (12 + (x)))
-#define APCI3120_CTRL_PR(x)			(((x) & 0xf) << 8)
-#define APCI3120_CTRL_PA(x)			(((x) & 0xf) << 0)
-#define APCI3120_AI_SOFTTRIG_REG		0x02
-#define APCI3120_STATUS_REG			0x02
-#define APCI3120_STATUS_EOC_INT			(1 << 15)
-#define APCI3120_STATUS_AMCC_INT		(1 << 14)
-#define APCI3120_STATUS_EOS_INT			(1 << 13)
-#define APCI3120_STATUS_TIMER2_INT		(1 << 12)
-#define APCI3120_STATUS_INT_MASK		(0xf << 12)
-#define APCI3120_STATUS_TO_DI_BITS(x)		(((x) >> 8) & 0xf)
-#define APCI3120_STATUS_TO_VERSION(x)		(((x) >> 4) & 0xf)
-#define APCI3120_STATUS_FIFO_FULL		(1 << 2)
-#define APCI3120_STATUS_FIFO_EMPTY		(1 << 1)
-#define APCI3120_STATUS_DA_READY		(1 << 0)
-#define APCI3120_TIMER_REG			0x04
-#define APCI3120_CHANLIST_REG			0x06
-#define APCI3120_CHANLIST_INDEX(x)		(((x) & 0xf) << 8)
-#define APCI3120_CHANLIST_UNIPOLAR		(1 << 7)
-#define APCI3120_CHANLIST_GAIN(x)		(((x) & 0x3) << 4)
-#define APCI3120_CHANLIST_MUX(x)		(((x) & 0xf) << 0)
-#define APCI3120_AO_REG(x)			(0x08 + (((x) / 4) * 2))
-#define APCI3120_AO_MUX(x)			(((x) & 0x3) << 14)
-#define APCI3120_AO_DATA(x)			((x) << 0)
-#define APCI3120_TIMER_MODE_REG			0x0c
-#define APCI3120_TIMER_MODE(_t, _m)		((_m) << ((_t) * 2))
-#define APCI3120_TIMER_MODE0			0  /* I8254_MODE0 */
-#define APCI3120_TIMER_MODE2			1  /* I8254_MODE2 */
-#define APCI3120_TIMER_MODE4			2  /* I8254_MODE4 */
-#define APCI3120_TIMER_MODE5			3  /* I8254_MODE5 */
-#define APCI3120_TIMER_MODE_MASK(_t)		(3 << ((_t) * 2))
-#define APCI3120_CTR0_REG			0x0d
-#define APCI3120_CTR0_DO_BITS(x)		((x) << 4)
-#define APCI3120_CTR0_TIMER_SEL(x)		((x) << 0)
-#define APCI3120_MODE_REG			0x0e
-#define APCI3120_MODE_TIMER2_CLK_OSC		(0 << 6)
-#define APCI3120_MODE_TIMER2_CLK_OUT1		(1 << 6)
-#define APCI3120_MODE_TIMER2_CLK_EOC		(2 << 6)
-#define APCI3120_MODE_TIMER2_CLK_EOS		(3 << 6)
-#define APCI3120_MODE_TIMER2_CLK_MASK		(3 << 6)
-#define APCI3120_MODE_TIMER2_AS_TIMER		(0 << 4)
-#define APCI3120_MODE_TIMER2_AS_COUNTER		(1 << 4)
-#define APCI3120_MODE_TIMER2_AS_WDOG		(2 << 4)
-#define APCI3120_MODE_TIMER2_AS_MASK		(3 << 4)  /* sets AS_TIMER */
-#define APCI3120_MODE_SCAN_ENA			(1 << 3)
-#define APCI3120_MODE_TIMER2_IRQ_ENA		(1 << 2)
-#define APCI3120_MODE_EOS_IRQ_ENA		(1 << 1)
-#define APCI3120_MODE_EOC_IRQ_ENA		(1 << 0)
-
-/*
- * PCI BAR 2 register map (devpriv->addon)
- */
-#define APCI3120_ADDON_ADDR_REG			0x00
-#define APCI3120_ADDON_DATA_REG			0x02
-#define APCI3120_ADDON_CTRL_REG			0x04
-#define APCI3120_ADDON_CTRL_AMWEN_ENA		(1 << 1)
-#define APCI3120_ADDON_CTRL_A2P_FIFO_ENA	(1 << 0)
-
-/*
- * Board revisions
- */
-#define APCI3120_REVA				0xa
-#define APCI3120_REVB				0xb
-#define APCI3120_REVA_OSC_BASE			70	/* 70ns = 14.29MHz */
-#define APCI3120_REVB_OSC_BASE			50	/* 50ns = 20MHz */
-
-static const struct comedi_lrange apci3120_ai_range = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1)
-	}
-};
-
-enum apci3120_boardid {
-	BOARD_APCI3120,
-	BOARD_APCI3001,
-};
-
-struct apci3120_board {
-	const char *name;
-	unsigned int ai_is_16bit:1;
-	unsigned int has_ao:1;
-};
-
-static const struct apci3120_board apci3120_boardtypes[] = {
-	[BOARD_APCI3120] = {
-		.name		= "apci3120",
-		.ai_is_16bit	= 1,
-		.has_ao		= 1,
-	},
-	[BOARD_APCI3001] = {
-		.name		= "apci3001",
-	},
-};
-
-struct apci3120_dmabuf {
-	unsigned short *virt;
-	dma_addr_t hw;
-	unsigned int size;
-	unsigned int use_size;
-};
-
-struct apci3120_private {
-	unsigned long amcc;
-	unsigned long addon;
-	unsigned int osc_base;
-	unsigned int use_dma:1;
-	unsigned int use_double_buffer:1;
-	unsigned int cur_dmabuf:1;
-	struct apci3120_dmabuf dmabuf[2];
-	unsigned char do_bits;
-	unsigned char timer_mode;
-	unsigned char mode;
-	unsigned short ctrl;
-};
-
-static void apci3120_addon_write(struct comedi_device *dev,
-				 unsigned int val, unsigned int reg)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	/* 16-bit interface for AMCC add-on registers */
-
-	outw(reg, devpriv->addon + APCI3120_ADDON_ADDR_REG);
-	outw(val & 0xffff, devpriv->addon + APCI3120_ADDON_DATA_REG);
-
-	outw(reg + 2, devpriv->addon + APCI3120_ADDON_ADDR_REG);
-	outw((val >> 16) & 0xffff, devpriv->addon + APCI3120_ADDON_DATA_REG);
-}
-
-static void apci3120_init_dma(struct comedi_device *dev,
-			      struct apci3120_dmabuf *dmabuf)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	/* AMCC - enable transfer count and reset A2P FIFO */
-	outl(AGCSTS_TC_ENABLE | AGCSTS_RESET_A2P_FIFO,
-	     devpriv->amcc + AMCC_OP_REG_AGCSTS);
-
-	/* Add-On - enable transfer count and reset A2P FIFO */
-	apci3120_addon_write(dev, AGCSTS_TC_ENABLE | AGCSTS_RESET_A2P_FIFO,
-			     AMCC_OP_REG_AGCSTS);
-
-	/* AMCC - enable transfers and reset A2P flags */
-	outl(RESET_A2P_FLAGS | EN_A2P_TRANSFERS,
-	     devpriv->amcc + AMCC_OP_REG_MCSR);
-
-	/* Add-On - DMA start address */
-	apci3120_addon_write(dev, dmabuf->hw, AMCC_OP_REG_AMWAR);
-
-	/* Add-On - Number of acquisitions */
-	apci3120_addon_write(dev, dmabuf->use_size, AMCC_OP_REG_AMWTC);
-
-	/* AMCC - enable write complete (DMA) and set FIFO advance */
-	outl(APCI3120_FIFO_ADVANCE_ON_BYTE_2 | AINT_WRITE_COMPL,
-	     devpriv->amcc + AMCC_OP_REG_INTCSR);
-
-	/* Add-On - enable DMA */
-	outw(APCI3120_ADDON_CTRL_AMWEN_ENA | APCI3120_ADDON_CTRL_A2P_FIFO_ENA,
-	     devpriv->addon + APCI3120_ADDON_CTRL_REG);
-}
-
-static void apci3120_setup_dma(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	struct apci3120_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	struct apci3120_dmabuf *dmabuf0 = &devpriv->dmabuf[0];
-	struct apci3120_dmabuf *dmabuf1 = &devpriv->dmabuf[1];
-	unsigned int dmalen0 = dmabuf0->size;
-	unsigned int dmalen1 = dmabuf1->size;
-	unsigned int scan_bytes;
-
-	scan_bytes = comedi_samples_to_bytes(s, cmd->scan_end_arg);
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		/*
-		 * Must we fill full first buffer? And must we fill
-		 * full second buffer when first is once filled?
-		 */
-		if (dmalen0 > (cmd->stop_arg * scan_bytes))
-			dmalen0 = cmd->stop_arg * scan_bytes;
-		else if (dmalen1 > (cmd->stop_arg * scan_bytes - dmalen0))
-			dmalen1 = cmd->stop_arg * scan_bytes - dmalen0;
-	}
-
-	if (cmd->flags & CMDF_WAKE_EOS) {
-		/* don't we want wake up every scan? */
-		if (dmalen0 > scan_bytes) {
-			dmalen0 = scan_bytes;
-			if (cmd->scan_end_arg & 1)
-				dmalen0 += 2;
-		}
-		if (dmalen1 > scan_bytes) {
-			dmalen1 = scan_bytes;
-			if (cmd->scan_end_arg & 1)
-				dmalen1 -= 2;
-			if (dmalen1 < 4)
-				dmalen1 = 4;
-		}
-	} else {
-		/* isn't output buff smaller that our DMA buff? */
-		if (dmalen0 > s->async->prealloc_bufsz)
-			dmalen0 = s->async->prealloc_bufsz;
-		if (dmalen1 > s->async->prealloc_bufsz)
-			dmalen1 = s->async->prealloc_bufsz;
-	}
-	dmabuf0->use_size = dmalen0;
-	dmabuf1->use_size = dmalen1;
-
-	apci3120_init_dma(dev, dmabuf0);
-}
-
-/*
- * There are three timers on the board. They all use the same base
- * clock with a fixed prescaler for each timer. The base clock used
- * depends on the board version and type.
- *
- * APCI-3120 Rev A boards OSC = 14.29MHz base clock (~70ns)
- * APCI-3120 Rev B boards OSC = 20MHz base clock (50ns)
- * APCI-3001 boards OSC = 20MHz base clock (50ns)
- *
- * The prescalers for each timer are:
- * Timer 0 CLK = OSC/10
- * Timer 1 CLK = OSC/1000
- * Timer 2 CLK = OSC/1000
- */
-static unsigned int apci3120_ns_to_timer(struct comedi_device *dev,
-					 unsigned int timer,
-					 unsigned int ns,
-					 unsigned int flags)
-{
-	struct apci3120_private *devpriv = dev->private;
-	unsigned int prescale = (timer == 0) ? 10 : 1000;
-	unsigned int timer_base = devpriv->osc_base * prescale;
-	unsigned int divisor;
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_UP:
-		divisor = DIV_ROUND_UP(ns, timer_base);
-		break;
-	case CMDF_ROUND_DOWN:
-		divisor = ns / timer_base;
-		break;
-	case CMDF_ROUND_NEAREST:
-	default:
-		divisor = DIV_ROUND_CLOSEST(ns, timer_base);
-		break;
-	}
-
-	if (timer == 2) {
-		/* timer 2 is 24-bits */
-		if (divisor > 0x00ffffff)
-			divisor = 0x00ffffff;
-	} else {
-		/* timers 0 and 1 are 16-bits */
-		if (divisor > 0xffff)
-			divisor = 0xffff;
-	}
-	/* the timers require a minimum divisor of 2 */
-	if (divisor < 2)
-		divisor = 2;
-
-	return divisor;
-}
-
-static void apci3120_clr_timer2_interrupt(struct comedi_device *dev)
-{
-	/* a dummy read of APCI3120_CTR0_REG clears the timer 2 interrupt */
-	inb(dev->iobase + APCI3120_CTR0_REG);
-}
-
-static void apci3120_timer_write(struct comedi_device *dev,
-				 unsigned int timer, unsigned int val)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	/* write 16-bit value to timer (lower 16-bits of timer 2) */
-	outb(APCI3120_CTR0_DO_BITS(devpriv->do_bits) |
-	     APCI3120_CTR0_TIMER_SEL(timer),
-	     dev->iobase + APCI3120_CTR0_REG);
-	outw(val & 0xffff, dev->iobase + APCI3120_TIMER_REG);
-
-	if (timer == 2) {
-		/* write upper 16-bits to timer 2 */
-		outb(APCI3120_CTR0_DO_BITS(devpriv->do_bits) |
-		     APCI3120_CTR0_TIMER_SEL(timer + 1),
-		     dev->iobase + APCI3120_CTR0_REG);
-		outw((val >> 16) & 0xffff, dev->iobase + APCI3120_TIMER_REG);
-	}
-}
-
-static unsigned int apci3120_timer_read(struct comedi_device *dev,
-					unsigned int timer)
-{
-	struct apci3120_private *devpriv = dev->private;
-	unsigned int val;
-
-	/* read 16-bit value from timer (lower 16-bits of timer 2) */
-	outb(APCI3120_CTR0_DO_BITS(devpriv->do_bits) |
-	     APCI3120_CTR0_TIMER_SEL(timer),
-	     dev->iobase + APCI3120_CTR0_REG);
-	val = inw(dev->iobase + APCI3120_TIMER_REG);
-
-	if (timer == 2) {
-		/* read upper 16-bits from timer 2 */
-		outb(APCI3120_CTR0_DO_BITS(devpriv->do_bits) |
-		     APCI3120_CTR0_TIMER_SEL(timer + 1),
-		     dev->iobase + APCI3120_CTR0_REG);
-		val |= (inw(dev->iobase + APCI3120_TIMER_REG) << 16);
-	}
-
-	return val;
-}
-
-static void apci3120_timer_set_mode(struct comedi_device *dev,
-				    unsigned int timer, unsigned int mode)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(timer);
-	devpriv->timer_mode |= APCI3120_TIMER_MODE(timer, mode);
-	outb(devpriv->timer_mode, dev->iobase + APCI3120_TIMER_MODE_REG);
-}
-
-static void apci3120_timer_enable(struct comedi_device *dev,
-				  unsigned int timer, bool enable)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	if (enable)
-		devpriv->ctrl |= APCI3120_CTRL_GATE(timer);
-	else
-		devpriv->ctrl &= ~APCI3120_CTRL_GATE(timer);
-	outw(devpriv->ctrl, dev->iobase + APCI3120_CTRL_REG);
-}
-
-static void apci3120_exttrig_enable(struct comedi_device *dev, bool enable)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	if (enable)
-		devpriv->ctrl |= APCI3120_CTRL_EXT_TRIG;
-	else
-		devpriv->ctrl &= ~APCI3120_CTRL_EXT_TRIG;
-	outw(devpriv->ctrl, dev->iobase + APCI3120_CTRL_REG);
-}
-
-static void apci3120_set_chanlist(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  int n_chan, unsigned int *chanlist)
-{
-	struct apci3120_private *devpriv = dev->private;
-	int i;
-
-	/* set chanlist for scan */
-	for (i = 0; i < n_chan; i++) {
-		unsigned int chan = CR_CHAN(chanlist[i]);
-		unsigned int range = CR_RANGE(chanlist[i]);
-		unsigned int val;
-
-		val = APCI3120_CHANLIST_MUX(chan) |
-		      APCI3120_CHANLIST_GAIN(range) |
-		      APCI3120_CHANLIST_INDEX(i);
-
-		if (comedi_range_is_unipolar(s, range))
-			val |= APCI3120_CHANLIST_UNIPOLAR;
-
-		outw(val, dev->iobase + APCI3120_CHANLIST_REG);
-	}
-
-	/* a dummy read of APCI3120_TIMER_MODE_REG resets the ai FIFO */
-	inw(dev->iobase + APCI3120_TIMER_MODE_REG);
-
-	/* set scan length (PR) and scan start (PA) */
-	devpriv->ctrl = APCI3120_CTRL_PR(n_chan - 1) | APCI3120_CTRL_PA(0);
-	outw(devpriv->ctrl, dev->iobase + APCI3120_CTRL_REG);
-
-	/* enable chanlist scanning if necessary */
-	if (n_chan > 1)
-		devpriv->mode |= APCI3120_MODE_SCAN_ENA;
-}
-
-static void apci3120_interrupt_dma(struct comedi_device *dev,
-				   struct comedi_subdevice *s)
-{
-	struct apci3120_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	struct apci3120_dmabuf *dmabuf;
-	unsigned int nbytes;
-	unsigned int nsamples;
-
-	dmabuf = &devpriv->dmabuf[devpriv->cur_dmabuf];
-
-	nbytes = dmabuf->use_size - inl(devpriv->amcc + AMCC_OP_REG_MWTC);
-
-	if (nbytes < dmabuf->use_size)
-		dev_err(dev->class_dev, "Interrupted DMA transfer!\n");
-	if (nbytes & 1) {
-		dev_err(dev->class_dev, "Odd count of bytes in DMA ring!\n");
-		async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-
-	nsamples = comedi_bytes_to_samples(s, nbytes);
-	if (nsamples) {
-		comedi_buf_write_samples(s, dmabuf->virt, nsamples);
-
-		if (!(cmd->flags & CMDF_WAKE_EOS))
-			async->events |= COMEDI_CB_EOS;
-	}
-
-	if ((async->events & COMEDI_CB_CANCEL_MASK) ||
-	    (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg))
-		return;
-
-	if (devpriv->use_double_buffer) {
-		/* switch DMA buffers for next interrupt */
-		devpriv->cur_dmabuf = !devpriv->cur_dmabuf;
-		dmabuf = &devpriv->dmabuf[devpriv->cur_dmabuf];
-		apci3120_init_dma(dev, dmabuf);
-	} else {
-		/* restart DMA if not using double buffering */
-		apci3120_init_dma(dev, dmabuf);
-	}
-}
-
-static irqreturn_t apci3120_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct apci3120_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int status;
-	unsigned int int_amcc;
-
-	status = inw(dev->iobase + APCI3120_STATUS_REG);
-	int_amcc = inl(devpriv->amcc + AMCC_OP_REG_INTCSR);
-
-	if (!(status & APCI3120_STATUS_INT_MASK) &&
-	    !(int_amcc & ANY_S593X_INT)) {
-		dev_err(dev->class_dev, "IRQ from unknown source\n");
-		return IRQ_NONE;
-	}
-
-	outl(int_amcc | AINT_INT_MASK, devpriv->amcc + AMCC_OP_REG_INTCSR);
-
-	if (devpriv->ctrl & APCI3120_CTRL_EXT_TRIG)
-		apci3120_exttrig_enable(dev, false);
-
-	if (int_amcc & MASTER_ABORT_INT)
-		dev_err(dev->class_dev, "AMCC IRQ - MASTER DMA ABORT!\n");
-	if (int_amcc & TARGET_ABORT_INT)
-		dev_err(dev->class_dev, "AMCC IRQ - TARGET DMA ABORT!\n");
-
-	if ((status & APCI3120_STATUS_EOC_INT) == 0 &&
-	    (devpriv->mode & APCI3120_MODE_EOC_IRQ_ENA)) {
-		/* nothing to do... EOC mode is not currently used */
-	}
-
-	if ((status & APCI3120_STATUS_EOS_INT) &&
-	    (devpriv->mode & APCI3120_MODE_EOS_IRQ_ENA)) {
-		unsigned short val;
-		int i;
-
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			val = inw(dev->iobase + APCI3120_AI_FIFO_REG);
-			comedi_buf_write_samples(s, &val, 1);
-		}
-
-		devpriv->mode |= APCI3120_MODE_EOS_IRQ_ENA;
-		outb(devpriv->mode, dev->iobase + APCI3120_MODE_REG);
-	}
-
-	if (status & APCI3120_STATUS_TIMER2_INT) {
-		/*
-		 * for safety...
-		 * timer2 interrupts are not enabled in the driver
-		 */
-		apci3120_clr_timer2_interrupt(dev);
-	}
-
-	if (status & APCI3120_STATUS_AMCC_INT) {
-		/* AMCC- Clear write complete interrupt (DMA) */
-		outl(AINT_WT_COMPLETE, devpriv->amcc + AMCC_OP_REG_INTCSR);
-
-		/* do some data transfer */
-		apci3120_interrupt_dma(dev, s);
-	}
-
-	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
-		async->events |= COMEDI_CB_EOA;
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int apci3120_ai_cmd(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct apci3120_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int divisor;
-
-	/* set default mode bits */
-	devpriv->mode = APCI3120_MODE_TIMER2_CLK_OSC |
-			APCI3120_MODE_TIMER2_AS_TIMER;
-
-	/* AMCC- Clear write complete interrupt (DMA) */
-	outl(AINT_WT_COMPLETE, devpriv->amcc + AMCC_OP_REG_INTCSR);
-
-	devpriv->cur_dmabuf = 0;
-
-	/* load chanlist for command scan */
-	apci3120_set_chanlist(dev, s, cmd->chanlist_len, cmd->chanlist);
-
-	if (cmd->start_src == TRIG_EXT)
-		apci3120_exttrig_enable(dev, true);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/*
-		 * Timer 1 is used in MODE2 (rate generator) to set the
-		 * start time for each scan.
-		 */
-		divisor = apci3120_ns_to_timer(dev, 1, cmd->scan_begin_arg,
-					       cmd->flags);
-		apci3120_timer_set_mode(dev, 1, APCI3120_TIMER_MODE2);
-		apci3120_timer_write(dev, 1, divisor);
-	}
-
-	/*
-	 * Timer 0 is used in MODE2 (rate generator) to set the conversion
-	 * time for each acquisition.
-	 */
-	divisor = apci3120_ns_to_timer(dev, 0, cmd->convert_arg, cmd->flags);
-	apci3120_timer_set_mode(dev, 0, APCI3120_TIMER_MODE2);
-	apci3120_timer_write(dev, 0, divisor);
-
-	if (devpriv->use_dma)
-		apci3120_setup_dma(dev, s);
-	else
-		devpriv->mode |= APCI3120_MODE_EOS_IRQ_ENA;
-
-	/* set mode to enable acquisition */
-	outb(devpriv->mode, dev->iobase + APCI3120_MODE_REG);
-
-	if (cmd->scan_begin_src == TRIG_TIMER)
-		apci3120_timer_enable(dev, 1, true);
-	apci3120_timer_enable(dev, 0, true);
-
-	return 0;
-}
-
-static int apci3120_ai_cmdtest(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_cmd *cmd)
-{
-	unsigned int arg;
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {	/* Test Delay timing */
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    100000);
-	}
-
-	/* minimum conversion time per sample is 10us */
-	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/*  TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/* scan begin must be larger than the scan time */
-		arg = cmd->convert_arg * cmd->scan_end_arg;
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int apci3120_cancel(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	/* Add-On - disable DMA */
-	outw(0, devpriv->addon + 4);
-
-	/* Add-On - disable bus master */
-	apci3120_addon_write(dev, 0, AMCC_OP_REG_AGCSTS);
-
-	/* AMCC - disable bus master */
-	outl(0, devpriv->amcc + AMCC_OP_REG_MCSR);
-
-	/* disable all counters, ext trigger, and reset scan */
-	devpriv->ctrl = 0;
-	outw(devpriv->ctrl, dev->iobase + APCI3120_CTRL_REG);
-
-	/* DISABLE_ALL_INTERRUPT */
-	devpriv->mode = 0;
-	outb(devpriv->mode, dev->iobase + APCI3120_MODE_REG);
-
-	inw(dev->iobase + APCI3120_STATUS_REG);
-	devpriv->cur_dmabuf = 0;
-
-	return 0;
-}
-
-static int apci3120_ai_eoc(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + APCI3120_STATUS_REG);
-	if ((status & APCI3120_STATUS_EOC_INT) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int apci3120_ai_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct apci3120_private *devpriv = dev->private;
-	unsigned int divisor;
-	int ret;
-	int i;
-
-	/* set mode for A/D conversions by software trigger with timer 0 */
-	devpriv->mode = APCI3120_MODE_TIMER2_CLK_OSC |
-			APCI3120_MODE_TIMER2_AS_TIMER;
-	outb(devpriv->mode, dev->iobase + APCI3120_MODE_REG);
-
-	/* load chanlist for single channel scan */
-	apci3120_set_chanlist(dev, s, 1, &insn->chanspec);
-
-	/*
-	 * Timer 0 is used in MODE4 (software triggered strobe) to set the
-	 * conversion time for each acquisition. Each conversion is triggered
-	 * when the divisor is written to the timer, The conversion is done
-	 * when the EOC bit in the status register is '0'.
-	 */
-	apci3120_timer_set_mode(dev, 0, APCI3120_TIMER_MODE4);
-	apci3120_timer_enable(dev, 0, true);
-
-	/* fixed conversion time of 10 us */
-	divisor = apci3120_ns_to_timer(dev, 0, 10000, CMDF_ROUND_NEAREST);
-
-	for (i = 0; i < insn->n; i++) {
-		/* trigger conversion */
-		apci3120_timer_write(dev, 0, divisor);
-
-		ret = comedi_timeout(dev, s, insn, apci3120_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[i] = inw(dev->iobase + APCI3120_AI_FIFO_REG);
-	}
-
-	return insn->n;
-}
-
-static int apci3120_ao_ready(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + APCI3120_STATUS_REG);
-	if (status & APCI3120_STATUS_DA_READY)
-		return 0;
-	return -EBUSY;
-}
-
-static int apci3120_ao_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-		int ret;
-
-		ret = comedi_timeout(dev, s, insn, apci3120_ao_ready, 0);
-		if (ret)
-			return ret;
-
-		outw(APCI3120_AO_MUX(chan) | APCI3120_AO_DATA(val),
-		     dev->iobase + APCI3120_AO_REG(chan));
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int apci3120_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + APCI3120_STATUS_REG);
-	data[1] = APCI3120_STATUS_TO_DI_BITS(status);
-
-	return insn->n;
-}
-
-static int apci3120_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct apci3120_private *devpriv = dev->private;
-
-	if (comedi_dio_update_state(s, data)) {
-		devpriv->do_bits = s->state;
-		outb(APCI3120_CTR0_DO_BITS(devpriv->do_bits),
-		     dev->iobase + APCI3120_CTR0_REG);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int apci3120_timer_insn_config(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	struct apci3120_private *devpriv = dev->private;
-	unsigned int divisor;
-	unsigned int status;
-	unsigned int mode;
-	unsigned int timer_mode;
-
-	switch (data[0]) {
-	case INSN_CONFIG_ARM:
-		apci3120_clr_timer2_interrupt(dev);
-		divisor = apci3120_ns_to_timer(dev, 2, data[1],
-					       CMDF_ROUND_DOWN);
-		apci3120_timer_write(dev, 2, divisor);
-		apci3120_timer_enable(dev, 2, true);
-		break;
-
-	case INSN_CONFIG_DISARM:
-		apci3120_timer_enable(dev, 2, false);
-		apci3120_clr_timer2_interrupt(dev);
-		break;
-
-	case INSN_CONFIG_GET_COUNTER_STATUS:
-		data[1] = 0;
-		data[2] = COMEDI_COUNTER_ARMED | COMEDI_COUNTER_COUNTING |
-			  COMEDI_COUNTER_TERMINAL_COUNT;
-
-		if (devpriv->ctrl & APCI3120_CTRL_GATE(2)) {
-			data[1] |= COMEDI_COUNTER_ARMED;
-			data[1] |= COMEDI_COUNTER_COUNTING;
-		}
-		status = inw(dev->iobase + APCI3120_STATUS_REG);
-		if (status & APCI3120_STATUS_TIMER2_INT) {
-			data[1] &= ~COMEDI_COUNTER_COUNTING;
-			data[1] |= COMEDI_COUNTER_TERMINAL_COUNT;
-		}
-		break;
-
-	case INSN_CONFIG_SET_COUNTER_MODE:
-		switch (data[1]) {
-		case I8254_MODE0:
-			mode = APCI3120_MODE_TIMER2_AS_COUNTER;
-			timer_mode = APCI3120_TIMER_MODE0;
-			break;
-		case I8254_MODE2:
-			mode = APCI3120_MODE_TIMER2_AS_TIMER;
-			timer_mode = APCI3120_TIMER_MODE2;
-			break;
-		case I8254_MODE4:
-			mode = APCI3120_MODE_TIMER2_AS_TIMER;
-			timer_mode = APCI3120_TIMER_MODE4;
-			break;
-		case I8254_MODE5:
-			mode = APCI3120_MODE_TIMER2_AS_WDOG;
-			timer_mode = APCI3120_TIMER_MODE5;
-			break;
-		default:
-			return -EINVAL;
-		}
-		apci3120_timer_enable(dev, 2, false);
-		apci3120_clr_timer2_interrupt(dev);
-		apci3120_timer_set_mode(dev, 2, timer_mode);
-		devpriv->mode &= ~APCI3120_MODE_TIMER2_AS_MASK;
-		devpriv->mode |= mode;
-		outb(devpriv->mode, dev->iobase + APCI3120_MODE_REG);
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int apci3120_timer_insn_read(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	int i;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = apci3120_timer_read(dev, 2);
-
-	return insn->n;
-}
-
-static void apci3120_dma_alloc(struct comedi_device *dev)
-{
-	struct apci3120_private *devpriv = dev->private;
-	struct apci3120_dmabuf *dmabuf;
-	int order;
-	int i;
-
-	for (i = 0; i < 2; i++) {
-		dmabuf = &devpriv->dmabuf[i];
-		for (order = 2; order >= 0; order--) {
-			dmabuf->virt = dma_alloc_coherent(dev->hw_dev,
-							  PAGE_SIZE << order,
-							  &dmabuf->hw,
-							  GFP_KERNEL);
-			if (dmabuf->virt)
-				break;
-		}
-		if (!dmabuf->virt)
-			break;
-		dmabuf->size = PAGE_SIZE << order;
-
-		if (i == 0)
-			devpriv->use_dma = 1;
-		if (i == 1)
-			devpriv->use_double_buffer = 1;
-	}
-}
-
-static void apci3120_dma_free(struct comedi_device *dev)
-{
-	struct apci3120_private *devpriv = dev->private;
-	struct apci3120_dmabuf *dmabuf;
-	int i;
-
-	if (!devpriv)
-		return;
-
-	for (i = 0; i < 2; i++) {
-		dmabuf = &devpriv->dmabuf[i];
-		if (dmabuf->virt) {
-			dma_free_coherent(dev->hw_dev, dmabuf->size,
-					  dmabuf->virt, dmabuf->hw);
-		}
-	}
-}
-
-static void apci3120_reset(struct comedi_device *dev)
-{
-	/* disable all interrupt sources */
-	outb(0, dev->iobase + APCI3120_MODE_REG);
-
-	/* disable all counters, ext trigger, and reset scan */
-	outw(0, dev->iobase + APCI3120_CTRL_REG);
-
-	/* clear interrupt status */
-	inw(dev->iobase + APCI3120_STATUS_REG);
-}
-
-static int apci3120_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct apci3120_board *board = NULL;
-	struct apci3120_private *devpriv;
-	struct comedi_subdevice *s;
-	unsigned int status;
-	int ret;
-
-	if (context < ARRAY_SIZE(apci3120_boardtypes))
-		board = &apci3120_boardtypes[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	pci_set_master(pcidev);
-
-	dev->iobase = pci_resource_start(pcidev, 1);
-	devpriv->amcc = pci_resource_start(pcidev, 0);
-	devpriv->addon = pci_resource_start(pcidev, 2);
-
-	apci3120_reset(dev);
-
-	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, apci3120_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0) {
-			dev->irq = pcidev->irq;
-
-			apci3120_dma_alloc(dev);
-		}
-	}
-
-	status = inw(dev->iobase + APCI3120_STATUS_REG);
-	if (APCI3120_STATUS_TO_VERSION(status) == APCI3120_REVB ||
-	    context == BOARD_APCI3001)
-		devpriv->osc_base = APCI3120_REVB_OSC_BASE;
-	else
-		devpriv->osc_base = APCI3120_REVA_OSC_BASE;
-
-	ret = comedi_alloc_subdevices(dev, 5);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;
-	s->n_chan	= 16;
-	s->maxdata	= board->ai_is_16bit ? 0xffff : 0x0fff;
-	s->range_table	= &apci3120_ai_range;
-	s->insn_read	= apci3120_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= s->n_chan;
-		s->do_cmdtest	= apci3120_ai_cmdtest;
-		s->do_cmd	= apci3120_ai_cmd;
-		s->cancel	= apci3120_cancel;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	if (board->has_ao) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan	= 8;
-		s->maxdata	= 0x3fff;
-		s->range_table	= &range_bipolar10;
-		s->insn_write	= apci3120_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci3120_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci3120_do_insn_bits;
-
-	/* Timer subdevice */
-	s = &dev->subdevices[4];
-	s->type		= COMEDI_SUBD_TIMER;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 0x00ffffff;
-	s->insn_config	= apci3120_timer_insn_config;
-	s->insn_read	= apci3120_timer_insn_read;
-
-	return 0;
-}
-
-static void apci3120_detach(struct comedi_device *dev)
-{
-	comedi_pci_detach(dev);
-	apci3120_dma_free(dev);
-}
-
-static struct comedi_driver apci3120_driver = {
-	.driver_name	= "addi_apci_3120",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci3120_auto_attach,
-	.detach		= apci3120_detach,
-};
-
-static int apci3120_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci3120_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci3120_pci_table[] = {
-	{ PCI_VDEVICE(AMCC, 0x818d), BOARD_APCI3120 },
-	{ PCI_VDEVICE(AMCC, 0x828d), BOARD_APCI3001 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci3120_pci_table);
-
-static struct pci_driver apci3120_pci_driver = {
-	.name		= "addi_apci_3120",
-	.id_table	= apci3120_pci_table,
-	.probe		= apci3120_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci3120_driver, apci3120_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("ADDI-DATA APCI-3120, Analog input board");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_3501.c b/drivers/staging/comedi/drivers/addi_apci_3501.c
deleted file mode 100644
index 40ff91411139..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_3501.c
+++ /dev/null
@@ -1,446 +0,0 @@
-/*
- * addi_apci_3501.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- * Project manager: Eric Stolz
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-
-#include "../comedi_pci.h"
-#include "addi_tcw.h"
-#include "amcc_s5933.h"
-
-/*
- * PCI bar 1 register I/O map
- */
-#define APCI3501_AO_CTRL_STATUS_REG		0x00
-#define APCI3501_AO_CTRL_BIPOLAR		BIT(0)
-#define APCI3501_AO_STATUS_READY		BIT(8)
-#define APCI3501_AO_DATA_REG			0x04
-#define APCI3501_AO_DATA_CHAN(x)		((x) << 0)
-#define APCI3501_AO_DATA_VAL(x)			((x) << 8)
-#define APCI3501_AO_DATA_BIPOLAR		BIT(31)
-#define APCI3501_AO_TRIG_SCS_REG		0x08
-#define APCI3501_TIMER_BASE			0x20
-#define APCI3501_DO_REG				0x40
-#define APCI3501_DI_REG				0x50
-
-/*
- * AMCC S5933 NVRAM
- */
-#define NVRAM_USER_DATA_START	0x100
-
-#define NVCMD_BEGIN_READ	(0x7 << 5)
-#define NVCMD_LOAD_LOW		(0x4 << 5)
-#define NVCMD_LOAD_HIGH		(0x5 << 5)
-
-/*
- * Function types stored in the eeprom
- */
-#define EEPROM_DIGITALINPUT		0
-#define EEPROM_DIGITALOUTPUT		1
-#define EEPROM_ANALOGINPUT		2
-#define EEPROM_ANALOGOUTPUT		3
-#define EEPROM_TIMER			4
-#define EEPROM_WATCHDOG			5
-#define EEPROM_TIMER_WATCHDOG_COUNTER	10
-
-struct apci3501_private {
-	unsigned long amcc;
-	unsigned long tcw;
-	struct task_struct *tsk_Current;
-	unsigned char timer_mode;
-};
-
-static struct comedi_lrange apci3501_ao_range = {
-	2, {
-		BIP_RANGE(10),
-		UNI_RANGE(10)
-	}
-};
-
-static int apci3501_wait_for_dac(struct comedi_device *dev)
-{
-	unsigned int status;
-
-	do {
-		status = inl(dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
-	} while (!(status & APCI3501_AO_STATUS_READY));
-
-	return 0;
-}
-
-static int apci3501_ao_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int cfg = APCI3501_AO_DATA_CHAN(chan);
-	int ret;
-	int i;
-
-	/*
-	 * All analog output channels have the same output range.
-	 *	14-bit bipolar: 0-10V
-	 *	13-bit unipolar: +/-10V
-	 * Changing the range of one channel changes all of them!
-	 */
-	if (range) {
-		outl(0, dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
-	} else {
-		cfg |= APCI3501_AO_DATA_BIPOLAR;
-		outl(APCI3501_AO_CTRL_BIPOLAR,
-		     dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
-	}
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		if (range == 1) {
-			if (data[i] > 0x1fff) {
-				dev_err(dev->class_dev,
-					"Unipolar resolution is only 13-bits\n");
-				return -EINVAL;
-			}
-		}
-
-		ret = apci3501_wait_for_dac(dev);
-		if (ret)
-			return ret;
-
-		outl(cfg | APCI3501_AO_DATA_VAL(val),
-		     dev->iobase + APCI3501_AO_DATA_REG);
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-#include "addi-data/hwdrv_apci3501.c"
-
-static int apci3501_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	data[1] = inl(dev->iobase + APCI3501_DI_REG) & 0x3;
-
-	return insn->n;
-}
-
-static int apci3501_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	s->state = inl(dev->iobase + APCI3501_DO_REG);
-
-	if (comedi_dio_update_state(s, data))
-		outl(s->state, dev->iobase + APCI3501_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void apci3501_eeprom_wait(unsigned long iobase)
-{
-	unsigned char val;
-
-	do {
-		val = inb(iobase + AMCC_OP_REG_MCSR_NVCMD);
-	} while (val & 0x80);
-}
-
-static unsigned short apci3501_eeprom_readw(unsigned long iobase,
-					    unsigned short addr)
-{
-	unsigned short val = 0;
-	unsigned char tmp;
-	unsigned char i;
-
-	/* Add the offset to the start of the user data */
-	addr += NVRAM_USER_DATA_START;
-
-	for (i = 0; i < 2; i++) {
-		/* Load the low 8 bit address */
-		outb(NVCMD_LOAD_LOW, iobase + AMCC_OP_REG_MCSR_NVCMD);
-		apci3501_eeprom_wait(iobase);
-		outb((addr + i) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA);
-		apci3501_eeprom_wait(iobase);
-
-		/* Load the high 8 bit address */
-		outb(NVCMD_LOAD_HIGH, iobase + AMCC_OP_REG_MCSR_NVCMD);
-		apci3501_eeprom_wait(iobase);
-		outb(((addr + i) >> 8) & 0xff,
-		     iobase + AMCC_OP_REG_MCSR_NVDATA);
-		apci3501_eeprom_wait(iobase);
-
-		/* Read the eeprom data byte */
-		outb(NVCMD_BEGIN_READ, iobase + AMCC_OP_REG_MCSR_NVCMD);
-		apci3501_eeprom_wait(iobase);
-		tmp = inb(iobase + AMCC_OP_REG_MCSR_NVDATA);
-		apci3501_eeprom_wait(iobase);
-
-		if (i == 0)
-			val |= tmp;
-		else
-			val |= (tmp << 8);
-	}
-
-	return val;
-}
-
-static int apci3501_eeprom_get_ao_n_chan(struct comedi_device *dev)
-{
-	struct apci3501_private *devpriv = dev->private;
-	unsigned char nfuncs;
-	int i;
-
-	nfuncs = apci3501_eeprom_readw(devpriv->amcc, 10) & 0xff;
-
-	/* Read functionality details */
-	for (i = 0; i < nfuncs; i++) {
-		unsigned short offset = i * 4;
-		unsigned short addr;
-		unsigned char func;
-		unsigned short val;
-
-		func = apci3501_eeprom_readw(devpriv->amcc, 12 + offset) & 0x3f;
-		addr = apci3501_eeprom_readw(devpriv->amcc, 14 + offset);
-
-		if (func == EEPROM_ANALOGOUTPUT) {
-			val = apci3501_eeprom_readw(devpriv->amcc, addr + 10);
-			return (val >> 4) & 0x3ff;
-		}
-	}
-	return 0;
-}
-
-static int apci3501_eeprom_insn_read(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct apci3501_private *devpriv = dev->private;
-	unsigned short addr = CR_CHAN(insn->chanspec);
-
-	data[0] = apci3501_eeprom_readw(devpriv->amcc, 2 * addr);
-
-	return insn->n;
-}
-
-static irqreturn_t apci3501_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct apci3501_private *devpriv = dev->private;
-	unsigned int status;
-	unsigned int ctrl;
-
-	/*  Disable Interrupt */
-	ctrl = inl(devpriv->tcw + ADDI_TCW_CTRL_REG);
-	ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG |
-		  ADDI_TCW_CTRL_IRQ_ENA);
-	outl(ctrl, devpriv->tcw + ADDI_TCW_CTRL_REG);
-
-	status = inl(devpriv->tcw + ADDI_TCW_IRQ_REG);
-	if (!(status & ADDI_TCW_IRQ)) {
-		dev_err(dev->class_dev, "IRQ from unknown source\n");
-		return IRQ_NONE;
-	}
-
-	/* Enable Interrupt Send a signal to from kernel to user space */
-	send_sig(SIGIO, devpriv->tsk_Current, 0);
-	ctrl = inl(devpriv->tcw + ADDI_TCW_CTRL_REG);
-	ctrl &= ~(ADDI_TCW_CTRL_GATE | ADDI_TCW_CTRL_TRIG |
-		  ADDI_TCW_CTRL_IRQ_ENA);
-	ctrl |= ADDI_TCW_CTRL_IRQ_ENA;
-	outl(ctrl, devpriv->tcw + ADDI_TCW_CTRL_REG);
-	inl(devpriv->tcw + ADDI_TCW_STATUS_REG);
-
-	return IRQ_HANDLED;
-}
-
-static int apci3501_reset(struct comedi_device *dev)
-{
-	unsigned int val;
-	int chan;
-	int ret;
-
-	/* Reset all digital outputs to "0" */
-	outl(0x0, dev->iobase + APCI3501_DO_REG);
-
-	/* Default all analog outputs to 0V (bipolar) */
-	outl(APCI3501_AO_CTRL_BIPOLAR,
-	     dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
-	val = APCI3501_AO_DATA_BIPOLAR | APCI3501_AO_DATA_VAL(0);
-
-	/* Set all analog output channels */
-	for (chan = 0; chan < 8; chan++) {
-		ret = apci3501_wait_for_dac(dev);
-		if (ret) {
-			dev_warn(dev->class_dev,
-				 "%s: DAC not-ready for channel %i\n",
-				 __func__, chan);
-		} else {
-			outl(val | APCI3501_AO_DATA_CHAN(chan),
-			     dev->iobase + APCI3501_AO_DATA_REG);
-		}
-	}
-
-	return 0;
-}
-
-static int apci3501_auto_attach(struct comedi_device *dev,
-				unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct apci3501_private *devpriv;
-	struct comedi_subdevice *s;
-	int ao_n_chan;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv->amcc = pci_resource_start(pcidev, 0);
-	dev->iobase = pci_resource_start(pcidev, 1);
-	devpriv->tcw = dev->iobase + APCI3501_TIMER_BASE;
-
-	ao_n_chan = apci3501_eeprom_get_ao_n_chan(dev);
-
-	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, apci3501_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 5);
-	if (ret)
-		return ret;
-
-	/* Initialize the analog output subdevice */
-	s = &dev->subdevices[0];
-	if (ao_n_chan) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan	= ao_n_chan;
-		s->maxdata	= 0x3fff;
-		s->range_table	= &apci3501_ao_range;
-		s->insn_write	= apci3501_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Initialize the digital input subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci3501_di_insn_bits;
-
-	/* Initialize the digital output subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= apci3501_do_insn_bits;
-
-	/* Initialize the timer/watchdog subdevice */
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_TIMER;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 1;
-	s->maxdata = 0;
-	s->len_chanlist = 1;
-	s->range_table = &range_digital;
-	s->insn_write = apci3501_write_insn_timer;
-	s->insn_read = apci3501_read_insn_timer;
-	s->insn_config = apci3501_config_insn_timer;
-
-	/* Initialize the eeprom subdevice */
-	s = &dev->subdevices[4];
-	s->type		= COMEDI_SUBD_MEMORY;
-	s->subdev_flags	= SDF_READABLE | SDF_INTERNAL;
-	s->n_chan	= 256;
-	s->maxdata	= 0xffff;
-	s->insn_read	= apci3501_eeprom_insn_read;
-
-	apci3501_reset(dev);
-	return 0;
-}
-
-static void apci3501_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		apci3501_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci3501_driver = {
-	.driver_name	= "addi_apci_3501",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci3501_auto_attach,
-	.detach		= apci3501_detach,
-};
-
-static int apci3501_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci3501_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci3501_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3001) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci3501_pci_table);
-
-static struct pci_driver apci3501_pci_driver = {
-	.name		= "addi_apci_3501",
-	.id_table	= apci3501_pci_table,
-	.probe		= apci3501_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci3501_driver, apci3501_pci_driver);
-
-MODULE_DESCRIPTION("ADDI-DATA APCI-3501 Analog output board");
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
deleted file mode 100644
index bef6efc84efd..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
+++ /dev/null
@@ -1,968 +0,0 @@
-/*
- * addi_apci_3xxx.c
- * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
- * Project manager: S. Weber
- *
- *	ADDI-DATA GmbH
- *	Dieselstrasse 3
- *	D-77833 Ottersweier
- *	Tel: +19(0)7223/9493-0
- *	Fax: +49(0)7223/9493-92
- *	http://www.addi-data.com
- *	info@addi-data.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#define CONV_UNIT_NS		(1 << 0)
-#define CONV_UNIT_US		(1 << 1)
-#define CONV_UNIT_MS		(1 << 2)
-
-static const struct comedi_lrange apci3xxx_ai_range = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1)
-	}
-};
-
-static const struct comedi_lrange apci3xxx_ao_range = {
-	2, {
-		BIP_RANGE(10),
-		UNI_RANGE(10)
-	}
-};
-
-enum apci3xxx_boardid {
-	BOARD_APCI3000_16,
-	BOARD_APCI3000_8,
-	BOARD_APCI3000_4,
-	BOARD_APCI3006_16,
-	BOARD_APCI3006_8,
-	BOARD_APCI3006_4,
-	BOARD_APCI3010_16,
-	BOARD_APCI3010_8,
-	BOARD_APCI3010_4,
-	BOARD_APCI3016_16,
-	BOARD_APCI3016_8,
-	BOARD_APCI3016_4,
-	BOARD_APCI3100_16_4,
-	BOARD_APCI3100_8_4,
-	BOARD_APCI3106_16_4,
-	BOARD_APCI3106_8_4,
-	BOARD_APCI3110_16_4,
-	BOARD_APCI3110_8_4,
-	BOARD_APCI3116_16_4,
-	BOARD_APCI3116_8_4,
-	BOARD_APCI3003,
-	BOARD_APCI3002_16,
-	BOARD_APCI3002_8,
-	BOARD_APCI3002_4,
-	BOARD_APCI3500,
-};
-
-struct apci3xxx_boardinfo {
-	const char *name;
-	int ai_subdev_flags;
-	int ai_n_chan;
-	unsigned int ai_maxdata;
-	unsigned char ai_conv_units;
-	unsigned int ai_min_acq_ns;
-	unsigned int has_ao:1;
-	unsigned int has_dig_in:1;
-	unsigned int has_dig_out:1;
-	unsigned int has_ttl_io:1;
-};
-
-static const struct apci3xxx_boardinfo apci3xxx_boardtypes[] = {
-	[BOARD_APCI3000_16] = {
-		.name			= "apci3000-16",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3000_8] = {
-		.name			= "apci3000-8",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3000_4] = {
-		.name			= "apci3000-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 4,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3006_16] = {
-		.name			= "apci3006-16",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3006_8] = {
-		.name			= "apci3006-8",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3006_4] = {
-		.name			= "apci3006-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 4,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3010_16] = {
-		.name			= "apci3010-16",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3010_8] = {
-		.name			= "apci3010-8",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3010_4] = {
-		.name			= "apci3010-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 4,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3016_16] = {
-		.name			= "apci3016-16",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3016_8] = {
-		.name			= "apci3016-8",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3016_4] = {
-		.name			= "apci3016-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 4,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3100_16_4] = {
-		.name			= "apci3100-16-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ao			= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3100_8_4] = {
-		.name			= "apci3100-8-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ao			= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3106_16_4] = {
-		.name			= "apci3106-16-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ao			= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3106_8_4] = {
-		.name			= "apci3106-8-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 10000,
-		.has_ao			= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3110_16_4] = {
-		.name			= "apci3110-16-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_ao			= 1,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3110_8_4] = {
-		.name			= "apci3110-8-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0x0fff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_ao			= 1,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3116_16_4] = {
-		.name			= "apci3116-16-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_ao			= 1,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3116_8_4] = {
-		.name			= "apci3116-8-4",
-		.ai_subdev_flags	= SDF_COMMON | SDF_GROUND | SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_ao			= 1,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-		.has_ttl_io		= 1,
-	},
-	[BOARD_APCI3003] = {
-		.name			= "apci3003",
-		.ai_subdev_flags	= SDF_DIFF,
-		.ai_n_chan		= 4,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US |
-					  CONV_UNIT_NS,
-		.ai_min_acq_ns		= 2500,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-	},
-	[BOARD_APCI3002_16] = {
-		.name			= "apci3002-16",
-		.ai_subdev_flags	= SDF_DIFF,
-		.ai_n_chan		= 16,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-	},
-	[BOARD_APCI3002_8] = {
-		.name			= "apci3002-8",
-		.ai_subdev_flags	= SDF_DIFF,
-		.ai_n_chan		= 8,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-	},
-	[BOARD_APCI3002_4] = {
-		.name			= "apci3002-4",
-		.ai_subdev_flags	= SDF_DIFF,
-		.ai_n_chan		= 4,
-		.ai_maxdata		= 0xffff,
-		.ai_conv_units		= CONV_UNIT_MS | CONV_UNIT_US,
-		.ai_min_acq_ns		= 5000,
-		.has_dig_in		= 1,
-		.has_dig_out		= 1,
-	},
-	[BOARD_APCI3500] = {
-		.name			= "apci3500",
-		.has_ao			= 1,
-		.has_ttl_io		= 1,
-	},
-};
-
-struct apci3xxx_private {
-	unsigned int ai_timer;
-	unsigned char ai_time_base;
-};
-
-static irqreturn_t apci3xxx_irq_handler(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int status;
-	unsigned int val;
-
-	/* Test if interrupt occur */
-	status = readl(dev->mmio + 16);
-	if ((status & 0x2) == 0x2) {
-		/* Reset the interrupt */
-		writel(status, dev->mmio + 16);
-
-		val = readl(dev->mmio + 28);
-		comedi_buf_write_samples(s, &val, 1);
-
-		s->async->events |= COMEDI_CB_EOA;
-		comedi_handle_events(dev, s);
-
-		return IRQ_HANDLED;
-	}
-	return IRQ_NONE;
-}
-
-static int apci3xxx_ai_started(struct comedi_device *dev)
-{
-	if ((readl(dev->mmio + 8) & 0x80000) == 0x80000)
-		return 1;
-
-	return 0;
-}
-
-static int apci3xxx_ai_setup(struct comedi_device *dev, unsigned int chanspec)
-{
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int aref = CR_AREF(chanspec);
-	unsigned int delay_mode;
-	unsigned int val;
-
-	if (apci3xxx_ai_started(dev))
-		return -EBUSY;
-
-	/* Clear the FIFO */
-	writel(0x10000, dev->mmio + 12);
-
-	/* Get and save the delay mode */
-	delay_mode = readl(dev->mmio + 4);
-	delay_mode &= 0xfffffef0;
-
-	/* Channel configuration selection */
-	writel(delay_mode, dev->mmio + 4);
-
-	/* Make the configuration */
-	val = (range & 3) | ((range >> 2) << 6) |
-	      ((aref == AREF_DIFF) << 7);
-	writel(val, dev->mmio + 0);
-
-	/* Channel selection */
-	writel(delay_mode | 0x100, dev->mmio + 4);
-	writel(chan, dev->mmio + 0);
-
-	/* Restore delay mode */
-	writel(delay_mode, dev->mmio + 4);
-
-	/* Set the number of sequence to 1 */
-	writel(1, dev->mmio + 48);
-
-	return 0;
-}
-
-static int apci3xxx_ai_eoc(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned long context)
-{
-	unsigned int status;
-
-	status = readl(dev->mmio + 20);
-	if (status & 0x1)
-		return 0;
-	return -EBUSY;
-}
-
-static int apci3xxx_ai_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	int ret;
-	int i;
-
-	ret = apci3xxx_ai_setup(dev, insn->chanspec);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < insn->n; i++) {
-		/* Start the conversion */
-		writel(0x80000, dev->mmio + 8);
-
-		/* Wait the EOS */
-		ret = comedi_timeout(dev, s, insn, apci3xxx_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* Read the analog value */
-		data[i] = readl(dev->mmio + 28);
-	}
-
-	return insn->n;
-}
-
-static int apci3xxx_ai_ns_to_timer(struct comedi_device *dev,
-				   unsigned int *ns, unsigned int flags)
-{
-	const struct apci3xxx_boardinfo *board = dev->board_ptr;
-	struct apci3xxx_private *devpriv = dev->private;
-	unsigned int base;
-	unsigned int timer;
-	int time_base;
-
-	/* time_base: 0 = ns, 1 = us, 2 = ms */
-	for (time_base = 0; time_base < 3; time_base++) {
-		/* skip unsupported time bases */
-		if (!(board->ai_conv_units & (1 << time_base)))
-			continue;
-
-		switch (time_base) {
-		case 0:
-			base = 1;
-			break;
-		case 1:
-			base = 1000;
-			break;
-		case 2:
-			base = 1000000;
-			break;
-		}
-
-		switch (flags & CMDF_ROUND_MASK) {
-		case CMDF_ROUND_NEAREST:
-		default:
-			timer = (*ns + base / 2) / base;
-			break;
-		case CMDF_ROUND_DOWN:
-			timer = *ns / base;
-			break;
-		case CMDF_ROUND_UP:
-			timer = (*ns + base - 1) / base;
-			break;
-		}
-
-		if (timer < 0x10000) {
-			devpriv->ai_time_base = time_base;
-			devpriv->ai_timer = timer;
-			*ns = timer * time_base;
-			return 0;
-		}
-	}
-	return -EINVAL;
-}
-
-static int apci3xxx_ai_cmdtest(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_cmd *cmd)
-{
-	const struct apci3xxx_boardinfo *board = dev->board_ptr;
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-					    board->ai_min_acq_ns);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	arg = cmd->convert_arg;
-	err |= apci3xxx_ai_ns_to_timer(dev, &arg, cmd->flags);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int apci3xxx_ai_cmd(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct apci3xxx_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	ret = apci3xxx_ai_setup(dev, cmd->chanlist[0]);
-	if (ret)
-		return ret;
-
-	/* Set the convert timing unit */
-	writel(devpriv->ai_time_base, dev->mmio + 36);
-
-	/* Set the convert timing */
-	writel(devpriv->ai_timer, dev->mmio + 32);
-
-	/* Start the conversion */
-	writel(0x180000, dev->mmio + 8);
-
-	return 0;
-}
-
-static int apci3xxx_ai_cancel(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	return 0;
-}
-
-static int apci3xxx_ao_eoc(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned long context)
-{
-	unsigned int status;
-
-	status = readl(dev->mmio + 96);
-	if (status & 0x100)
-		return 0;
-	return -EBUSY;
-}
-
-static int apci3xxx_ao_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int ret;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		/* Set the range selection */
-		writel(range, dev->mmio + 96);
-
-		/* Write the analog value to the selected channel */
-		writel((val << 8) | chan, dev->mmio + 100);
-
-		/* Wait the end of transfer */
-		ret = comedi_timeout(dev, s, insn, apci3xxx_ao_eoc, 0);
-		if (ret)
-			return ret;
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int apci3xxx_di_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	data[1] = inl(dev->iobase + 32) & 0xf;
-
-	return insn->n;
-}
-
-static int apci3xxx_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	s->state = inl(dev->iobase + 48) & 0xf;
-
-	if (comedi_dio_update_state(s, data))
-		outl(s->state, dev->iobase + 48);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int apci3xxx_dio_insn_config(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask = 0;
-	int ret;
-
-	/*
-	 * Port 0 (channels 0-7) are always inputs
-	 * Port 1 (channels 8-15) are always outputs
-	 * Port 2 (channels 16-23) are programmable i/o
-	 */
-	if (data[0] != INSN_CONFIG_DIO_QUERY) {
-		/* ignore all other instructions for ports 0 and 1 */
-		if (chan < 16)
-			return -EINVAL;
-
-		/* changing any channel in port 2 changes the entire port */
-		mask = 0xff0000;
-	}
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	/* update port 2 configuration */
-	outl((s->io_bits >> 24) & 0xff, dev->iobase + 224);
-
-	return insn->n;
-}
-
-static int apci3xxx_dio_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int mask;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0xff)
-			outl(s->state & 0xff, dev->iobase + 80);
-		if (mask & 0xff0000)
-			outl((s->state >> 16) & 0xff, dev->iobase + 112);
-	}
-
-	val = inl(dev->iobase + 80);
-	val |= (inl(dev->iobase + 64) << 8);
-	if (s->io_bits & 0xff0000)
-		val |= (inl(dev->iobase + 112) << 16);
-	else
-		val |= (inl(dev->iobase + 96) << 16);
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int apci3xxx_reset(struct comedi_device *dev)
-{
-	unsigned int val;
-	int i;
-
-	/* Disable the interrupt */
-	disable_irq(dev->irq);
-
-	/* Clear the start command */
-	writel(0, dev->mmio + 8);
-
-	/* Reset the interrupt flags */
-	val = readl(dev->mmio + 16);
-	writel(val, dev->mmio + 16);
-
-	/* clear the EOS */
-	readl(dev->mmio + 20);
-
-	/* Clear the FIFO */
-	for (i = 0; i < 16; i++)
-		val = readl(dev->mmio + 28);
-
-	/* Enable the interrupt */
-	enable_irq(dev->irq);
-
-	return 0;
-}
-
-static int apci3xxx_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct apci3xxx_boardinfo *board = NULL;
-	struct apci3xxx_private *devpriv;
-	struct comedi_subdevice *s;
-	int n_subdevices;
-	int subdev;
-	int ret;
-
-	if (context < ARRAY_SIZE(apci3xxx_boardtypes))
-		board = &apci3xxx_boardtypes[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->iobase = pci_resource_start(pcidev, 2);
-	dev->mmio = pci_ioremap_bar(pcidev, 3);
-
-	if (pcidev->irq > 0) {
-		ret = request_irq(pcidev->irq, apci3xxx_irq_handler,
-				  IRQF_SHARED, dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	n_subdevices = (board->ai_n_chan ? 0 : 1) + board->has_ao +
-		       board->has_dig_in + board->has_dig_out +
-		       board->has_ttl_io;
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
-	if (ret)
-		return ret;
-
-	subdev = 0;
-
-	/* Analog Input subdevice */
-	if (board->ai_n_chan) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_AI;
-		s->subdev_flags	= SDF_READABLE | board->ai_subdev_flags;
-		s->n_chan	= board->ai_n_chan;
-		s->maxdata	= board->ai_maxdata;
-		s->range_table	= &apci3xxx_ai_range;
-		s->insn_read	= apci3xxx_ai_insn_read;
-		if (dev->irq) {
-			/*
-			 * FIXME: The hardware supports multiple scan modes
-			 * but the original addi-data driver only supported
-			 * reading a single channel with interrupts. Need a
-			 * proper datasheet to fix this.
-			 *
-			 * The following scan modes are supported by the
-			 * hardware:
-			 *   1) Single software scan
-			 *   2) Single hardware triggered scan
-			 *   3) Continuous software scan
-			 *   4) Continuous software scan with timer delay
-			 *   5) Continuous hardware triggered scan
-			 *   6) Continuous hardware triggered scan with timer
-			 *      delay
-			 *
-			 * For now, limit the chanlist to a single channel.
-			 */
-			dev->read_subdev = s;
-			s->subdev_flags	|= SDF_CMD_READ;
-			s->len_chanlist	= 1;
-			s->do_cmdtest	= apci3xxx_ai_cmdtest;
-			s->do_cmd	= apci3xxx_ai_cmd;
-			s->cancel	= apci3xxx_ai_cancel;
-		}
-
-		subdev++;
-	}
-
-	/* Analog Output subdevice */
-	if (board->has_ao) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan	= 4;
-		s->maxdata	= 0x0fff;
-		s->range_table	= &apci3xxx_ao_range;
-		s->insn_write	= apci3xxx_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		subdev++;
-	}
-
-	/* Digital Input subdevice */
-	if (board->has_dig_in) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= 4;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= apci3xxx_di_insn_bits;
-
-		subdev++;
-	}
-
-	/* Digital Output subdevice */
-	if (board->has_dig_out) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= 4;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= apci3xxx_do_insn_bits;
-
-		subdev++;
-	}
-
-	/* TTL Digital I/O subdevice */
-	if (board->has_ttl_io) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_DIO;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-		s->n_chan	= 24;
-		s->maxdata	= 1;
-		s->io_bits	= 0xff;	/* channels 0-7 are always outputs */
-		s->range_table	= &range_digital;
-		s->insn_config	= apci3xxx_dio_insn_config;
-		s->insn_bits	= apci3xxx_dio_insn_bits;
-
-		subdev++;
-	}
-
-	apci3xxx_reset(dev);
-	return 0;
-}
-
-static void apci3xxx_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		apci3xxx_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci3xxx_driver = {
-	.driver_name	= "addi_apci_3xxx",
-	.module		= THIS_MODULE,
-	.auto_attach	= apci3xxx_auto_attach,
-	.detach		= apci3xxx_detach,
-};
-
-static int apci3xxx_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &apci3xxx_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci3xxx_pci_table[] = {
-	{ PCI_VDEVICE(ADDIDATA, 0x3010), BOARD_APCI3000_16 },
-	{ PCI_VDEVICE(ADDIDATA, 0x300f), BOARD_APCI3000_8 },
-	{ PCI_VDEVICE(ADDIDATA, 0x300e), BOARD_APCI3000_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3013), BOARD_APCI3006_16 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3014), BOARD_APCI3006_8 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3015), BOARD_APCI3006_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3016), BOARD_APCI3010_16 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3017), BOARD_APCI3010_8 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3018), BOARD_APCI3010_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3019), BOARD_APCI3016_16 },
-	{ PCI_VDEVICE(ADDIDATA, 0x301a), BOARD_APCI3016_8 },
-	{ PCI_VDEVICE(ADDIDATA, 0x301b), BOARD_APCI3016_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x301c), BOARD_APCI3100_16_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x301d), BOARD_APCI3100_8_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x301e), BOARD_APCI3106_16_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x301f), BOARD_APCI3106_8_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3020), BOARD_APCI3110_16_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3021), BOARD_APCI3110_8_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3022), BOARD_APCI3116_16_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3023), BOARD_APCI3116_8_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x300B), BOARD_APCI3003 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3002), BOARD_APCI3002_16 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3003), BOARD_APCI3002_8 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3004), BOARD_APCI3002_4 },
-	{ PCI_VDEVICE(ADDIDATA, 0x3024), BOARD_APCI3500 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci3xxx_pci_table);
-
-static struct pci_driver apci3xxx_pci_driver = {
-	.name		= "addi_apci_3xxx",
-	.id_table	= apci3xxx_pci_table,
-	.probe		= apci3xxx_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci3xxx_driver, apci3xxx_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_tcw.h b/drivers/staging/comedi/drivers/addi_tcw.h
deleted file mode 100644
index db6d5a4e8889..000000000000
--- a/drivers/staging/comedi/drivers/addi_tcw.h
+++ /dev/null
@@ -1,63 +0,0 @@
-#ifndef _ADDI_TCW_H
-#define _ADDI_TCW_H
-
-/*
- * Following are the generic definitions for the ADDI-DATA timer/counter/
- * watchdog (TCW) registers and bits. Some of the registers are not used
- * depending on the use of the TCW.
- */
-
-#define ADDI_TCW_VAL_REG		0x00
-
-#define ADDI_TCW_SYNC_REG		0x00
-#define ADDI_TCW_SYNC_CTR_TRIG		BIT(8)
-#define ADDI_TCW_SYNC_CTR_DIS		BIT(7)
-#define ADDI_TCW_SYNC_CTR_ENA		BIT(6)
-#define ADDI_TCW_SYNC_TIMER_TRIG	BIT(5)
-#define ADDI_TCW_SYNC_TIMER_DIS		BIT(4)
-#define ADDI_TCW_SYNC_TIMER_ENA		BIT(3)
-#define ADDI_TCW_SYNC_WDOG_TRIG		BIT(2)
-#define ADDI_TCW_SYNC_WDOG_DIS		BIT(1)
-#define ADDI_TCW_SYNC_WDOG_ENA		BIT(0)
-
-#define ADDI_TCW_RELOAD_REG		0x04
-
-#define ADDI_TCW_TIMEBASE_REG		0x08
-
-#define ADDI_TCW_CTRL_REG		0x0c
-#define ADDI_TCW_CTRL_EXT_CLK_STATUS	BIT(21)
-#define ADDI_TCW_CTRL_CASCADE		BIT(20)
-#define ADDI_TCW_CTRL_CNTR_ENA		BIT(19)
-#define ADDI_TCW_CTRL_CNT_UP		BIT(18)
-#define ADDI_TCW_CTRL_EXT_CLK(x)	(((x) & 3) << 16)
-#define ADDI_TCW_CTRL_EXT_CLK_MASK	ADDI_TCW_CTRL_EXT_CLK(3)
-#define ADDI_TCW_CTRL_MODE(x)		(((x) & 7) << 13)
-#define ADDI_TCW_CTRL_MODE_MASK		ADDI_TCW_CTRL_MODE(7)
-#define ADDI_TCW_CTRL_OUT(x)		(((x) & 3) << 11)
-#define ADDI_TCW_CTRL_OUT_MASK		ADDI_TCW_CTRL_OUT(3)
-#define ADDI_TCW_CTRL_GATE		BIT(10)
-#define ADDI_TCW_CTRL_TRIG		BIT(9)
-#define ADDI_TCW_CTRL_EXT_GATE(x)	(((x) & 3) << 7)
-#define ADDI_TCW_CTRL_EXT_GATE_MASK	ADDI_TCW_CTRL_EXT_GATE(3)
-#define ADDI_TCW_CTRL_EXT_TRIG(x)	(((x) & 3) << 5)
-#define ADDI_TCW_CTRL_EXT_TRIG_MASK	ADDI_TCW_CTRL_EXT_TRIG(3)
-#define ADDI_TCW_CTRL_TIMER_ENA		BIT(4)
-#define ADDI_TCW_CTRL_RESET_ENA		BIT(3)
-#define ADDI_TCW_CTRL_WARN_ENA		BIT(2)
-#define ADDI_TCW_CTRL_IRQ_ENA		BIT(1)
-#define ADDI_TCW_CTRL_ENA		BIT(0)
-
-#define ADDI_TCW_STATUS_REG		0x10
-#define ADDI_TCW_STATUS_SOFT_CLR	BIT(3)
-#define ADDI_TCW_STATUS_HARDWARE_TRIG	BIT(2)
-#define ADDI_TCW_STATUS_SOFT_TRIG	BIT(1)
-#define ADDI_TCW_STATUS_OVERFLOW	BIT(0)
-
-#define ADDI_TCW_IRQ_REG		0x14
-#define ADDI_TCW_IRQ			BIT(0)
-
-#define ADDI_TCW_WARN_TIMEVAL_REG	0x18
-
-#define ADDI_TCW_WARN_TIMEBASE_REG	0x1c
-
-#endif
diff --git a/drivers/staging/comedi/drivers/addi_watchdog.c b/drivers/staging/comedi/drivers/addi_watchdog.c
deleted file mode 100644
index 9d9853fe54a0..000000000000
--- a/drivers/staging/comedi/drivers/addi_watchdog.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * COMEDI driver for the watchdog subdevice found on some addi-data boards
- * Copyright (c) 2013 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * Based on implementations in various addi-data COMEDI drivers.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-#include "addi_tcw.h"
-#include "addi_watchdog.h"
-
-struct addi_watchdog_private {
-	unsigned long iobase;
-	unsigned int wdog_ctrl;
-};
-
-/*
- * The watchdog subdevice is configured with two INSN_CONFIG instructions:
- *
- * Enable the watchdog and set the reload timeout:
- *	data[0] = INSN_CONFIG_ARM
- *	data[1] = timeout reload value
- *
- * Disable the watchdog:
- *	data[0] = INSN_CONFIG_DISARM
- */
-static int addi_watchdog_insn_config(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct addi_watchdog_private *spriv = s->private;
-	unsigned int reload;
-
-	switch (data[0]) {
-	case INSN_CONFIG_ARM:
-		spriv->wdog_ctrl = ADDI_TCW_CTRL_ENA;
-		reload = data[1] & s->maxdata;
-		outl(reload, spriv->iobase + ADDI_TCW_RELOAD_REG);
-
-		/* Time base is 20ms, let the user know the timeout */
-		dev_info(dev->class_dev, "watchdog enabled, timeout:%dms\n",
-			 20 * reload + 20);
-		break;
-	case INSN_CONFIG_DISARM:
-		spriv->wdog_ctrl = 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	outl(spriv->wdog_ctrl, spriv->iobase + ADDI_TCW_CTRL_REG);
-
-	return insn->n;
-}
-
-static int addi_watchdog_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct addi_watchdog_private *spriv = s->private;
-	int i;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = inl(spriv->iobase + ADDI_TCW_STATUS_REG);
-
-	return insn->n;
-}
-
-static int addi_watchdog_insn_write(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct addi_watchdog_private *spriv = s->private;
-	int i;
-
-	if (spriv->wdog_ctrl == 0) {
-		dev_warn(dev->class_dev, "watchdog is disabled\n");
-		return -EINVAL;
-	}
-
-	/* "ping" the watchdog */
-	for (i = 0; i < insn->n; i++) {
-		outl(spriv->wdog_ctrl | ADDI_TCW_CTRL_TRIG,
-		     spriv->iobase + ADDI_TCW_CTRL_REG);
-	}
-
-	return insn->n;
-}
-
-void addi_watchdog_reset(unsigned long iobase)
-{
-	outl(0x0, iobase + ADDI_TCW_CTRL_REG);
-	outl(0x0, iobase + ADDI_TCW_RELOAD_REG);
-}
-EXPORT_SYMBOL_GPL(addi_watchdog_reset);
-
-int addi_watchdog_init(struct comedi_subdevice *s, unsigned long iobase)
-{
-	struct addi_watchdog_private *spriv;
-
-	spriv = comedi_alloc_spriv(s, sizeof(*spriv));
-	if (!spriv)
-		return -ENOMEM;
-
-	spriv->iobase = iobase;
-
-	s->type		= COMEDI_SUBD_TIMER;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 0xff;
-	s->insn_config	= addi_watchdog_insn_config;
-	s->insn_read	= addi_watchdog_insn_read;
-	s->insn_write	= addi_watchdog_insn_write;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(addi_watchdog_init);
-
-static int __init addi_watchdog_module_init(void)
-{
-	return 0;
-}
-module_init(addi_watchdog_module_init);
-
-static void __exit addi_watchdog_module_exit(void)
-{
-}
-module_exit(addi_watchdog_module_exit);
-
-MODULE_DESCRIPTION("ADDI-DATA Watchdog subdevice");
-MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/addi_watchdog.h b/drivers/staging/comedi/drivers/addi_watchdog.h
deleted file mode 100644
index 3f8e7388bbca..000000000000
--- a/drivers/staging/comedi/drivers/addi_watchdog.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _ADDI_WATCHDOG_H
-#define _ADDI_WATCHDOG_H
-
-struct comedi_subdevice;
-
-void addi_watchdog_reset(unsigned long iobase);
-int addi_watchdog_init(struct comedi_subdevice *, unsigned long iobase);
-
-#endif
diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
deleted file mode 100644
index 7ed3fd6fbd3e..000000000000
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- * adl_pci6208.c
- * Comedi driver for ADLink 6208 series cards
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: adl_pci6208
- * Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
- * Devices: [ADLink] PCI-6208 (adl_pci6208), PCI-6216
- * Author: nsyeow <nsyeow@pd.jaring.my>
- * Updated: Wed, 11 Feb 2015 11:37:18 +0000
- * Status: untested
- *
- * Configuration Options: not applicable, uses PCI auto config
- *
- * All supported devices share the same PCI device ID and are treated as a
- * PCI-6216 with 16 analog output channels.  On a PCI-6208, the upper 8
- * channels exist in registers, but don't go to DAC chips.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include "../comedi_pci.h"
-
-/*
- * PCI-6208/6216-GL register map
- */
-#define PCI6208_AO_CONTROL(x)		(0x00 + (2 * (x)))
-#define PCI6208_AO_STATUS		0x00
-#define PCI6208_AO_STATUS_DATA_SEND	(1 << 0)
-#define PCI6208_DIO			0x40
-#define PCI6208_DIO_DO_MASK		(0x0f)
-#define PCI6208_DIO_DO_SHIFT		(0)
-#define PCI6208_DIO_DI_MASK		(0xf0)
-#define PCI6208_DIO_DI_SHIFT		(4)
-
-static int pci6208_ao_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + PCI6208_AO_STATUS);
-	if ((status & PCI6208_AO_STATUS_DATA_SEND) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int pci6208_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int ret;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		/* D/A transfer rate is 2.2us */
-		ret = comedi_timeout(dev, s, insn, pci6208_ao_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* the hardware expects two's complement values */
-		outw(comedi_offset_munge(s, val),
-		     dev->iobase + PCI6208_AO_CONTROL(chan));
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int pci6208_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int val;
-
-	val = inw(dev->iobase + PCI6208_DIO);
-	val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int pci6208_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + PCI6208_DIO);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pci6208_auto_attach(struct comedi_device *dev,
-			       unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	unsigned int val;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 2);
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog output subdevice */
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;	/* Only 8 usable on PCI-6208 */
-	s->maxdata	= 0xffff;
-	s->range_table	= &range_bipolar10;
-	s->insn_write	= pci6208_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[1];
-	/* digital input subdevice */
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pci6208_di_insn_bits;
-
-	s = &dev->subdevices[2];
-	/* digital output subdevice */
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pci6208_do_insn_bits;
-
-	/*
-	 * Get the read back signals from the digital outputs
-	 * and save it as the initial state for the subdevice.
-	 */
-	val = inw(dev->iobase + PCI6208_DIO);
-	val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
-	s->state	= val;
-
-	return 0;
-}
-
-static struct comedi_driver adl_pci6208_driver = {
-	.driver_name	= "adl_pci6208",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci6208_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int adl_pci6208_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adl_pci6208_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id adl_pci6208_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
-	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
-			 0x9999, 0x6208) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
-
-static struct pci_driver adl_pci6208_pci_driver = {
-	.name		= "adl_pci6208",
-	.id_table	= adl_pci6208_pci_table,
-	.probe		= adl_pci6208_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for ADLink 6208 series cards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci7x3x.c b/drivers/staging/comedi/drivers/adl_pci7x3x.c
deleted file mode 100644
index b0fc027cf485..000000000000
--- a/drivers/staging/comedi/drivers/adl_pci7x3x.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * COMEDI driver for the ADLINK PCI-723x/743x series boards.
- * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * Based on the adl_pci7230 driver written by:
- *	David Fernandez <dfcastelao@gmail.com>
- * and the adl_pci7432 driver written by:
- *	Michel Lachaine <mike@mikelachaine.ca>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: adl_pci7x3x
- * Description: 32/64-Channel Isolated Digital I/O Boards
- * Devices: [ADLink] PCI-7230 (adl_pci7230), PCI-7233 (adl_pci7233),
- *   PCI-7234 (adl_pci7234), PCI-7432 (adl_pci7432), PCI-7433 (adl_pci7433),
- *   PCI-7434 (adl_pci7434)
- * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
- * Updated: Thu, 02 Aug 2012 14:27:46 -0700
- * Status: untested
- *
- * One or two subdevices are setup by this driver depending on
- * the number of digital inputs and/or outputs provided by the
- * board. Each subdevice has a maximum of 32 channels.
- *
- *	PCI-7230 - 2 subdevices: 0 - 16 input, 1 - 16 output
- *	PCI-7233 - 1 subdevice: 0 - 32 input
- *	PCI-7234 - 1 subdevice: 0 - 32 output
- *	PCI-7432 - 2 subdevices: 0 - 32 input, 1 - 32 output
- *	PCI-7433 - 2 subdevices: 0 - 32 input, 1 - 32 input
- *	PCI-7434 - 2 subdevices: 0 - 32 output, 1 - 32 output
- *
- * The PCI-7230, PCI-7432 and PCI-7433 boards also support external
- * interrupt signals on digital input channels 0 and 1. The PCI-7233
- * has dual-interrupt sources for change-of-state (COS) on any 16
- * digital input channels of LSB and for COS on any 16 digital input
- * lines of MSB. Interrupts are not currently supported by this
- * driver.
- *
- * Configuration Options: not applicable, uses comedi PCI auto config
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-/*
- * Register I/O map (32-bit access only)
- */
-#define PCI7X3X_DIO_REG		0x00
-#define PCI743X_DIO_REG		0x04
-
-enum apci1516_boardid {
-	BOARD_PCI7230,
-	BOARD_PCI7233,
-	BOARD_PCI7234,
-	BOARD_PCI7432,
-	BOARD_PCI7433,
-	BOARD_PCI7434,
-};
-
-struct adl_pci7x3x_boardinfo {
-	const char *name;
-	int nsubdevs;
-	int di_nchan;
-	int do_nchan;
-};
-
-static const struct adl_pci7x3x_boardinfo adl_pci7x3x_boards[] = {
-	[BOARD_PCI7230] = {
-		.name		= "adl_pci7230",
-		.nsubdevs	= 2,
-		.di_nchan	= 16,
-		.do_nchan	= 16,
-	},
-	[BOARD_PCI7233] = {
-		.name		= "adl_pci7233",
-		.nsubdevs	= 1,
-		.di_nchan	= 32,
-	},
-	[BOARD_PCI7234] = {
-		.name		= "adl_pci7234",
-		.nsubdevs	= 1,
-		.do_nchan	= 32,
-	},
-	[BOARD_PCI7432] = {
-		.name		= "adl_pci7432",
-		.nsubdevs	= 2,
-		.di_nchan	= 32,
-		.do_nchan	= 32,
-	},
-	[BOARD_PCI7433] = {
-		.name		= "adl_pci7433",
-		.nsubdevs	= 2,
-		.di_nchan	= 64,
-	},
-	[BOARD_PCI7434] = {
-		.name		= "adl_pci7434",
-		.nsubdevs	= 2,
-		.do_nchan	= 64,
-	}
-};
-
-static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	unsigned long reg = (unsigned long)s->private;
-
-	if (comedi_dio_update_state(s, data)) {
-		unsigned int val = s->state;
-
-		if (s->n_chan == 16) {
-			/*
-			 * It seems the PCI-7230 needs the 16-bit DO state
-			 * to be shifted left by 16 bits before being written
-			 * to the 32-bit register.  Set the value in both
-			 * halves of the register to be sure.
-			 */
-			val |= val << 16;
-		}
-		outl(val, dev->iobase + reg);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int adl_pci7x3x_di_insn_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	unsigned long reg = (unsigned long)s->private;
-
-	data[1] = inl(dev->iobase + reg);
-
-	return insn->n;
-}
-
-static int adl_pci7x3x_auto_attach(struct comedi_device *dev,
-				   unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct adl_pci7x3x_boardinfo *board = NULL;
-	struct comedi_subdevice *s;
-	int subdev;
-	int nchan;
-	int ret;
-
-	if (context < ARRAY_SIZE(adl_pci7x3x_boards))
-		board = &adl_pci7x3x_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 2);
-
-	ret = comedi_alloc_subdevices(dev, board->nsubdevs);
-	if (ret)
-		return ret;
-
-	subdev = 0;
-
-	if (board->di_nchan) {
-		nchan = min(board->di_nchan, 32);
-
-		s = &dev->subdevices[subdev];
-		/* Isolated digital inputs 0 to 15/31 */
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= nchan;
-		s->maxdata	= 1;
-		s->insn_bits	= adl_pci7x3x_di_insn_bits;
-		s->range_table	= &range_digital;
-
-		s->private	= (void *)PCI7X3X_DIO_REG;
-
-		subdev++;
-
-		nchan = board->di_nchan - nchan;
-		if (nchan) {
-			s = &dev->subdevices[subdev];
-			/* Isolated digital inputs 32 to 63 */
-			s->type		= COMEDI_SUBD_DI;
-			s->subdev_flags	= SDF_READABLE;
-			s->n_chan	= nchan;
-			s->maxdata	= 1;
-			s->insn_bits	= adl_pci7x3x_di_insn_bits;
-			s->range_table	= &range_digital;
-
-			s->private	= (void *)PCI743X_DIO_REG;
-
-			subdev++;
-		}
-	}
-
-	if (board->do_nchan) {
-		nchan = min(board->do_nchan, 32);
-
-		s = &dev->subdevices[subdev];
-		/* Isolated digital outputs 0 to 15/31 */
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= nchan;
-		s->maxdata	= 1;
-		s->insn_bits	= adl_pci7x3x_do_insn_bits;
-		s->range_table	= &range_digital;
-
-		s->private	= (void *)PCI7X3X_DIO_REG;
-
-		subdev++;
-
-		nchan = board->do_nchan - nchan;
-		if (nchan) {
-			s = &dev->subdevices[subdev];
-			/* Isolated digital outputs 32 to 63 */
-			s->type		= COMEDI_SUBD_DO;
-			s->subdev_flags	= SDF_WRITABLE;
-			s->n_chan	= nchan;
-			s->maxdata	= 1;
-			s->insn_bits	= adl_pci7x3x_do_insn_bits;
-			s->range_table	= &range_digital;
-
-			s->private	= (void *)PCI743X_DIO_REG;
-
-			subdev++;
-		}
-	}
-
-	return 0;
-}
-
-static struct comedi_driver adl_pci7x3x_driver = {
-	.driver_name	= "adl_pci7x3x",
-	.module		= THIS_MODULE,
-	.auto_attach	= adl_pci7x3x_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int adl_pci7x3x_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adl_pci7x3x_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id adl_pci7x3x_pci_table[] = {
-	{ PCI_VDEVICE(ADLINK, 0x7230), BOARD_PCI7230 },
-	{ PCI_VDEVICE(ADLINK, 0x7233), BOARD_PCI7233 },
-	{ PCI_VDEVICE(ADLINK, 0x7234), BOARD_PCI7234 },
-	{ PCI_VDEVICE(ADLINK, 0x7432), BOARD_PCI7432 },
-	{ PCI_VDEVICE(ADLINK, 0x7433), BOARD_PCI7433 },
-	{ PCI_VDEVICE(ADLINK, 0x7434), BOARD_PCI7434 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adl_pci7x3x_pci_table);
-
-static struct pci_driver adl_pci7x3x_pci_driver = {
-	.name		= "adl_pci7x3x",
-	.id_table	= adl_pci7x3x_pci_table,
-	.probe		= adl_pci7x3x_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adl_pci7x3x_driver, adl_pci7x3x_pci_driver);
-
-MODULE_DESCRIPTION("ADLINK PCI-723x/743x Isolated Digital I/O boards");
-MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c
deleted file mode 100644
index da901c8dec0e..000000000000
--- a/drivers/staging/comedi/drivers/adl_pci8164.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * comedi/drivers/adl_pci8164.c
- *
- * Hardware comedi driver for PCI-8164 Adlink card
- * Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: adl_pci8164
- * Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board
- * Devices: [ADLink] PCI-8164 (adl_pci8164)
- * Author: Michel Lachaine <mike@mikelachaine.ca>
- * Status: experimental
- * Updated: Mon, 14 Apr 2008 15:10:32 +0100
- *
- * Configuration Options: not applicable, uses PCI auto config
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-#define PCI8164_AXIS(x)		((x) * 0x08)
-#define PCI8164_CMD_MSTS_REG	0x00
-#define PCI8164_OTP_SSTS_REG	0x02
-#define PCI8164_BUF0_REG	0x04
-#define PCI8164_BUF1_REG	0x06
-
-static int adl_pci8164_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned long offset = (unsigned long)s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = inw(dev->iobase + PCI8164_AXIS(chan) + offset);
-
-	return insn->n;
-}
-
-static int adl_pci8164_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned long offset = (unsigned long)s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++)
-		outw(data[i], dev->iobase + PCI8164_AXIS(chan) + offset);
-
-	return insn->n;
-}
-
-static int adl_pci8164_auto_attach(struct comedi_device *dev,
-				   unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 2);
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* read MSTS register / write CMD register for each axis (channel) */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_PROC;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 0xffff;
-	s->len_chanlist	= 4;
-	s->insn_read	= adl_pci8164_insn_read;
-	s->insn_write	= adl_pci8164_insn_write;
-	s->private	= (void *)PCI8164_CMD_MSTS_REG;
-
-	/* read SSTS register / write OTP register for each axis (channel) */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_PROC;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 0xffff;
-	s->len_chanlist	= 4;
-	s->insn_read	= adl_pci8164_insn_read;
-	s->insn_write	= adl_pci8164_insn_write;
-	s->private	= (void *)PCI8164_OTP_SSTS_REG;
-
-	/* read/write BUF0 register for each axis (channel) */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_PROC;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 0xffff;
-	s->len_chanlist	= 4;
-	s->insn_read	= adl_pci8164_insn_read;
-	s->insn_write	= adl_pci8164_insn_write;
-	s->private	= (void *)PCI8164_BUF0_REG;
-
-	/* read/write BUF1 register for each axis (channel) */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_PROC;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 0xffff;
-	s->len_chanlist	= 4;
-	s->insn_read	= adl_pci8164_insn_read;
-	s->insn_write	= adl_pci8164_insn_write;
-	s->private	= (void *)PCI8164_BUF1_REG;
-
-	return 0;
-}
-
-static struct comedi_driver adl_pci8164_driver = {
-	.driver_name	= "adl_pci8164",
-	.module		= THIS_MODULE,
-	.auto_attach	= adl_pci8164_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int adl_pci8164_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adl_pci8164_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id adl_pci8164_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x8164) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table);
-
-static struct pci_driver adl_pci8164_pci_driver = {
-	.name		= "adl_pci8164",
-	.id_table	= adl_pci8164_pci_table,
-	.probe		= adl_pci8164_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adl_pci8164_driver, adl_pci8164_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
deleted file mode 100644
index c9df3afe97f6..000000000000
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ /dev/null
@@ -1,775 +0,0 @@
-/*
-
-comedi/drivers/adl_pci9111.c
-
-Hardware driver for PCI9111 ADLink cards:
-
-PCI-9111HR
-
-Copyright (C) 2002-2005 Emmanuel Pacaud <emmanuel.pacaud@univ-poitiers.fr>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-*/
-
-/*
-Driver: adl_pci9111
-Description: Adlink PCI-9111HR
-Author: Emmanuel Pacaud <emmanuel.pacaud@univ-poitiers.fr>
-Devices: [ADLink] PCI-9111HR (adl_pci9111)
-Status: experimental
-
-Supports:
-
-	- ai_insn read
-	- ao_insn read/write
-	- di_insn read
-	- do_insn read/write
-	- ai_do_cmd mode with the following sources:
-
-	- start_src		TRIG_NOW
-	- scan_begin_src	TRIG_FOLLOW	TRIG_TIMER	TRIG_EXT
-	- convert_src				TRIG_TIMER	TRIG_EXT
-	- scan_end_src		TRIG_COUNT
-	- stop_src		TRIG_COUNT	TRIG_NONE
-
-The scanned channels must be consecutive and start from 0. They must
-all have the same range and aref.
-
-Configuration options: not applicable, uses PCI auto config
-*/
-
-/*
-CHANGELOG:
-
-2005/02/17 Extend AI streaming capabilities. Now, scan_begin_arg can be
-a multiple of chanlist_len*convert_arg.
-2002/02/19 Fixed the two's complement conversion in pci9111_(hr_)ai_get_data.
-2002/02/18 Added external trigger support for analog input.
-
-TODO:
-
-	- Really test implemented functionality.
-	- Add support for the PCI-9111DG with a probe routine to identify
-	  the card type (perhaps with the help of the channel number readback
-	  of the A/D Data register).
-	- Add external multiplexer support.
-
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "plx9052.h"
-#include "comedi_8254.h"
-
-#define PCI9111_FIFO_HALF_SIZE	512
-
-#define PCI9111_AI_ACQUISITION_PERIOD_MIN_NS	10000
-
-#define PCI9111_RANGE_SETTING_DELAY		10
-#define PCI9111_AI_INSTANT_READ_UDELAY_US	2
-
-/*
- * IO address map and bit defines
- */
-#define PCI9111_AI_FIFO_REG		0x00
-#define PCI9111_AO_REG			0x00
-#define PCI9111_DIO_REG			0x02
-#define PCI9111_EDIO_REG		0x04
-#define PCI9111_AI_CHANNEL_REG		0x06
-#define PCI9111_AI_RANGE_STAT_REG	0x08
-#define PCI9111_AI_STAT_AD_BUSY		(1 << 7)
-#define PCI9111_AI_STAT_FF_FF		(1 << 6)
-#define PCI9111_AI_STAT_FF_HF		(1 << 5)
-#define PCI9111_AI_STAT_FF_EF		(1 << 4)
-#define PCI9111_AI_RANGE_MASK		(7 << 0)
-#define PCI9111_AI_TRIG_CTRL_REG	0x0a
-#define PCI9111_AI_TRIG_CTRL_TRGEVENT	(1 << 5)
-#define PCI9111_AI_TRIG_CTRL_POTRG	(1 << 4)
-#define PCI9111_AI_TRIG_CTRL_PTRG	(1 << 3)
-#define PCI9111_AI_TRIG_CTRL_ETIS	(1 << 2)
-#define PCI9111_AI_TRIG_CTRL_TPST	(1 << 1)
-#define PCI9111_AI_TRIG_CTRL_ASCAN	(1 << 0)
-#define PCI9111_INT_CTRL_REG		0x0c
-#define PCI9111_INT_CTRL_ISC2		(1 << 3)
-#define PCI9111_INT_CTRL_FFEN		(1 << 2)
-#define PCI9111_INT_CTRL_ISC1		(1 << 1)
-#define PCI9111_INT_CTRL_ISC0		(1 << 0)
-#define PCI9111_SOFT_TRIG_REG		0x0e
-#define PCI9111_8254_BASE_REG		0x40
-#define PCI9111_INT_CLR_REG		0x48
-
-/* PLX 9052 Local Interrupt 1 enabled and active */
-#define PCI9111_LI1_ACTIVE	(PLX9052_INTCSR_LI1ENAB |	\
-				 PLX9052_INTCSR_LI1STAT)
-
-/* PLX 9052 Local Interrupt 2 enabled and active */
-#define PCI9111_LI2_ACTIVE	(PLX9052_INTCSR_LI2ENAB |	\
-				 PLX9052_INTCSR_LI2STAT)
-
-static const struct comedi_lrange pci9111_ai_range = {
-	5, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-struct pci9111_private_data {
-	unsigned long lcr_io_base;
-
-	unsigned int scan_delay;
-	unsigned int chunk_counter;
-	unsigned int chunk_num_samples;
-
-	unsigned short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
-};
-
-static void plx9050_interrupt_control(unsigned long io_base,
-				      bool LINTi1_enable,
-				      bool LINTi1_active_high,
-				      bool LINTi2_enable,
-				      bool LINTi2_active_high,
-				      bool interrupt_enable)
-{
-	int flags = 0;
-
-	if (LINTi1_enable)
-		flags |= PLX9052_INTCSR_LI1ENAB;
-	if (LINTi1_active_high)
-		flags |= PLX9052_INTCSR_LI1POL;
-	if (LINTi2_enable)
-		flags |= PLX9052_INTCSR_LI2ENAB;
-	if (LINTi2_active_high)
-		flags |= PLX9052_INTCSR_LI2POL;
-
-	if (interrupt_enable)
-		flags |= PLX9052_INTCSR_PCIENAB;
-
-	outb(flags, io_base + PLX9052_INTCSR);
-}
-
-enum pci9111_ISC0_sources {
-	irq_on_eoc,
-	irq_on_fifo_half_full
-};
-
-enum pci9111_ISC1_sources {
-	irq_on_timer_tick,
-	irq_on_external_trigger
-};
-
-static void pci9111_interrupt_source_set(struct comedi_device *dev,
-					 enum pci9111_ISC0_sources irq_0_source,
-					 enum pci9111_ISC1_sources irq_1_source)
-{
-	int flags;
-
-	/* Read the current interrupt control bits */
-	flags = inb(dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
-	/* Shift the bits so they are compatible with the write register */
-	flags >>= 4;
-	/* Mask off the ISCx bits */
-	flags &= 0xc0;
-
-	/* Now set the new ISCx bits */
-	if (irq_0_source == irq_on_fifo_half_full)
-		flags |= PCI9111_INT_CTRL_ISC0;
-
-	if (irq_1_source == irq_on_external_trigger)
-		flags |= PCI9111_INT_CTRL_ISC1;
-
-	outb(flags, dev->iobase + PCI9111_INT_CTRL_REG);
-}
-
-static void pci9111_fifo_reset(struct comedi_device *dev)
-{
-	unsigned long int_ctrl_reg = dev->iobase + PCI9111_INT_CTRL_REG;
-
-	/* To reset the FIFO, set FFEN sequence as 0 -> 1 -> 0 */
-	outb(0, int_ctrl_reg);
-	outb(PCI9111_INT_CTRL_FFEN, int_ctrl_reg);
-	outb(0, int_ctrl_reg);
-}
-
-static int pci9111_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct pci9111_private_data *dev_private = dev->private;
-
-	/*  Disable interrupts */
-	plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
-				  true, false);
-
-	/* disable A/D triggers (software trigger mode) and auto scan off */
-	outb(0, dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
-
-	pci9111_fifo_reset(dev);
-
-	return 0;
-}
-
-static int pci9111_ai_check_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-
-		if (chan != i) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must be consecutive channels,counting upwards from 0\n");
-			return -EINVAL;
-		}
-
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must all have the same gain\n");
-			return -EINVAL;
-		}
-
-		if (aref != aref0) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must all have the same reference\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src,
-					TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->scan_begin_src != TRIG_FOLLOW) {
-		if (cmd->scan_begin_src != cmd->convert_src)
-			err |= -EINVAL;
-	}
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-					PCI9111_AI_ACQUISITION_PERIOD_MIN_NS);
-	} else {	/* TRIG_EXT */
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-					PCI9111_AI_ACQUISITION_PERIOD_MIN_NS);
-	} else {	/* TRIG_FOLLOW || TRIG_EXT */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	/*
-	 * There's only one timer on this card, so the scan_begin timer
-	 * must be a multiple of chanlist_len*convert_arg
-	 */
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->chanlist_len * cmd->convert_arg;
-
-		if (arg < cmd->scan_begin_arg)
-			arg *= (cmd->scan_begin_arg / arg);
-
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= pci9111_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int pci9111_ai_do_cmd(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct pci9111_private_data *dev_private = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int last_chan = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]);
-	unsigned int trig = 0;
-
-	/*  Set channel scan limit */
-	/*  PCI9111 allows only scanning from channel 0 to channel n */
-	/*  TODO: handle the case of an external multiplexer */
-
-	if (cmd->chanlist_len > 1)
-		trig |= PCI9111_AI_TRIG_CTRL_ASCAN;
-
-	outb(last_chan, dev->iobase + PCI9111_AI_CHANNEL_REG);
-
-	/*  Set gain */
-	/*  This is the same gain on every channel */
-
-	outb(CR_RANGE(cmd->chanlist[0]) & PCI9111_AI_RANGE_MASK,
-	     dev->iobase + PCI9111_AI_RANGE_STAT_REG);
-
-	/*  Set timer pacer */
-	dev_private->scan_delay = 0;
-	if (cmd->convert_src == TRIG_TIMER) {
-		trig |= PCI9111_AI_TRIG_CTRL_TPST;
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-		pci9111_fifo_reset(dev);
-		pci9111_interrupt_source_set(dev, irq_on_fifo_half_full,
-					     irq_on_timer_tick);
-		plx9050_interrupt_control(dev_private->lcr_io_base, true, true,
-					  false, true, true);
-
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			dev_private->scan_delay = (cmd->scan_begin_arg /
-				(cmd->convert_arg * cmd->chanlist_len)) - 1;
-		}
-	} else {	/* TRIG_EXT */
-		trig |= PCI9111_AI_TRIG_CTRL_ETIS;
-		pci9111_fifo_reset(dev);
-		pci9111_interrupt_source_set(dev, irq_on_fifo_half_full,
-					     irq_on_timer_tick);
-		plx9050_interrupt_control(dev_private->lcr_io_base, true, true,
-					  false, true, true);
-	}
-	outb(trig, dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
-
-	dev_private->chunk_counter = 0;
-	dev_private->chunk_num_samples = cmd->chanlist_len *
-					 (1 + dev_private->scan_delay);
-
-	return 0;
-}
-
-static void pci9111_ai_munge(struct comedi_device *dev,
-			     struct comedi_subdevice *s, void *data,
-			     unsigned int num_bytes,
-			     unsigned int start_chan_index)
-{
-	unsigned short *array = data;
-	unsigned int maxdata = s->maxdata;
-	unsigned int invert = (maxdata + 1) >> 1;
-	unsigned int shift = (maxdata == 0xffff) ? 0 : 4;
-	unsigned int num_samples = comedi_bytes_to_samples(s, num_bytes);
-	unsigned int i;
-
-	for (i = 0; i < num_samples; i++)
-		array[i] = ((array[i] >> shift) & maxdata) ^ invert;
-}
-
-static void pci9111_handle_fifo_half_full(struct comedi_device *dev,
-					  struct comedi_subdevice *s)
-{
-	struct pci9111_private_data *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int samples;
-
-	samples = comedi_nsamples_left(s, PCI9111_FIFO_HALF_SIZE);
-	insw(dev->iobase + PCI9111_AI_FIFO_REG,
-	     devpriv->ai_bounce_buffer, samples);
-
-	if (devpriv->scan_delay < 1) {
-		comedi_buf_write_samples(s, devpriv->ai_bounce_buffer, samples);
-	} else {
-		unsigned int pos = 0;
-		unsigned int to_read;
-
-		while (pos < samples) {
-			if (devpriv->chunk_counter < cmd->chanlist_len) {
-				to_read = cmd->chanlist_len -
-					  devpriv->chunk_counter;
-
-				if (to_read > samples - pos)
-					to_read = samples - pos;
-
-				comedi_buf_write_samples(s,
-						devpriv->ai_bounce_buffer + pos,
-						to_read);
-			} else {
-				to_read = devpriv->chunk_num_samples -
-					  devpriv->chunk_counter;
-
-				if (to_read > samples - pos)
-					to_read = samples - pos;
-			}
-
-			pos += to_read;
-			devpriv->chunk_counter += to_read;
-
-			if (devpriv->chunk_counter >=
-			    devpriv->chunk_num_samples)
-				devpriv->chunk_counter = 0;
-		}
-	}
-}
-
-static irqreturn_t pci9111_interrupt(int irq, void *p_device)
-{
-	struct comedi_device *dev = p_device;
-	struct pci9111_private_data *dev_private = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async;
-	struct comedi_cmd *cmd;
-	unsigned int status;
-	unsigned long irq_flags;
-	unsigned char intcsr;
-
-	if (!dev->attached) {
-		/*  Ignore interrupt before device fully attached. */
-		/*  Might not even have allocated subdevices yet! */
-		return IRQ_NONE;
-	}
-
-	async = s->async;
-	cmd = &async->cmd;
-
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-
-	/*  Check if we are source of interrupt */
-	intcsr = inb(dev_private->lcr_io_base + PLX9052_INTCSR);
-	if (!(((intcsr & PLX9052_INTCSR_PCIENAB) != 0) &&
-	      (((intcsr & PCI9111_LI1_ACTIVE) == PCI9111_LI1_ACTIVE) ||
-	       ((intcsr & PCI9111_LI2_ACTIVE) == PCI9111_LI2_ACTIVE)))) {
-		/*  Not the source of the interrupt. */
-		/*  (N.B. not using PLX9052_INTCSR_SOFTINT) */
-		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-		return IRQ_NONE;
-	}
-
-	if ((intcsr & PCI9111_LI1_ACTIVE) == PCI9111_LI1_ACTIVE) {
-		/*  Interrupt comes from fifo_half-full signal */
-
-		status = inb(dev->iobase + PCI9111_AI_RANGE_STAT_REG);
-
-		/* '0' means FIFO is full, data may have been lost */
-		if (!(status & PCI9111_AI_STAT_FF_FF)) {
-			spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-			dev_dbg(dev->class_dev, "fifo overflow\n");
-			outb(0, dev->iobase + PCI9111_INT_CLR_REG);
-			async->events |= COMEDI_CB_ERROR;
-			comedi_handle_events(dev, s);
-
-			return IRQ_HANDLED;
-		}
-
-		/* '0' means FIFO is half-full */
-		if (!(status & PCI9111_AI_STAT_FF_HF))
-			pci9111_handle_fifo_half_full(dev, s);
-	}
-
-	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
-		async->events |= COMEDI_CB_EOA;
-
-	outb(0, dev->iobase + PCI9111_INT_CLR_REG);
-
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int pci9111_ai_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + PCI9111_AI_RANGE_STAT_REG);
-	if (status & PCI9111_AI_STAT_FF_EF)
-		return 0;
-	return -EBUSY;
-}
-
-static int pci9111_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int maxdata = s->maxdata;
-	unsigned int invert = (maxdata + 1) >> 1;
-	unsigned int shift = (maxdata == 0xffff) ? 0 : 4;
-	unsigned int status;
-	int ret;
-	int i;
-
-	outb(chan, dev->iobase + PCI9111_AI_CHANNEL_REG);
-
-	status = inb(dev->iobase + PCI9111_AI_RANGE_STAT_REG);
-	if ((status & PCI9111_AI_RANGE_MASK) != range) {
-		outb(range & PCI9111_AI_RANGE_MASK,
-		     dev->iobase + PCI9111_AI_RANGE_STAT_REG);
-	}
-
-	pci9111_fifo_reset(dev);
-
-	for (i = 0; i < insn->n; i++) {
-		/* Generate a software trigger */
-		outb(0, dev->iobase + PCI9111_SOFT_TRIG_REG);
-
-		ret = comedi_timeout(dev, s, insn, pci9111_ai_eoc, 0);
-		if (ret) {
-			pci9111_fifo_reset(dev);
-			return ret;
-		}
-
-		data[i] = inw(dev->iobase + PCI9111_AI_FIFO_REG);
-		data[i] = ((data[i] >> shift) & maxdata) ^ invert;
-	}
-
-	return i;
-}
-
-static int pci9111_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, dev->iobase + PCI9111_AO_REG);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pci9111_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	data[1] = inw(dev->iobase + PCI9111_DIO_REG);
-
-	return insn->n;
-}
-
-static int pci9111_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + PCI9111_DIO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pci9111_reset(struct comedi_device *dev)
-{
-	struct pci9111_private_data *dev_private = dev->private;
-
-	/*  Set trigger source to software */
-	plx9050_interrupt_control(dev_private->lcr_io_base, true, true, true,
-				  true, false);
-
-	/* disable A/D triggers (software trigger mode) and auto scan off */
-	outb(0, dev->iobase + PCI9111_AI_TRIG_CTRL_REG);
-
-	return 0;
-}
-
-static int pci9111_auto_attach(struct comedi_device *dev,
-			       unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct pci9111_private_data *dev_private;
-	struct comedi_subdevice *s;
-	int ret;
-
-	dev_private = comedi_alloc_devpriv(dev, sizeof(*dev_private));
-	if (!dev_private)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev_private->lcr_io_base = pci_resource_start(pcidev, 1);
-	dev->iobase = pci_resource_start(pcidev, 2);
-
-	pci9111_reset(dev);
-
-	if (pcidev->irq) {
-		ret = request_irq(pcidev->irq, pci9111_interrupt,
-				  IRQF_SHARED, dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	dev->pacer = comedi_8254_init(dev->iobase + PCI9111_8254_BASE_REG,
-				      I8254_OSC_BASE_2MHZ, I8254_IO16, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_COMMON;
-	s->n_chan	= 16;
-	s->maxdata	= 0xffff;
-	s->range_table	= &pci9111_ai_range;
-	s->insn_read	= pci9111_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= s->n_chan;
-		s->do_cmdtest	= pci9111_ai_do_cmd_test;
-		s->do_cmd	= pci9111_ai_do_cmd;
-		s->cancel	= pci9111_ai_cancel;
-		s->munge	= pci9111_ai_munge;
-	}
-
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_COMMON;
-	s->n_chan	= 1;
-	s->maxdata	= 0x0fff;
-	s->len_chanlist	= 1;
-	s->range_table	= &range_bipolar10;
-	s->insn_write	= pci9111_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pci9111_di_insn_bits;
-
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pci9111_do_insn_bits;
-
-	return 0;
-}
-
-static void pci9111_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		pci9111_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver adl_pci9111_driver = {
-	.driver_name	= "adl_pci9111",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci9111_auto_attach,
-	.detach		= pci9111_detach,
-};
-
-static int pci9111_pci_probe(struct pci_dev *dev,
-			     const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adl_pci9111_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id pci9111_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x9111) },
-	/* { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI9111_HG_DEVICE_ID) }, */
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, pci9111_pci_table);
-
-static struct pci_driver adl_pci9111_pci_driver = {
-	.name		= "adl_pci9111",
-	.id_table	= pci9111_pci_table,
-	.probe		= pci9111_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adl_pci9111_driver, adl_pci9111_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
deleted file mode 100644
index fb3043dcfff1..000000000000
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ /dev/null
@@ -1,1761 +0,0 @@
-/*
- *  comedi/drivers/adl_pci9118.c
- *
- *  hardware driver for ADLink cards:
- *   card:   PCI-9118DG, PCI-9118HG, PCI-9118HR
- *   driver: pci9118dg,  pci9118hg,  pci9118hr
- *
- * Author: Michal Dobes <dobes@tesnet.cz>
- *
- */
-
-/*
- * Driver: adl_pci9118
- * Description: Adlink PCI-9118DG, PCI-9118HG, PCI-9118HR
- * Author: Michal Dobes <dobes@tesnet.cz>
- * Devices: [ADLink] PCI-9118DG (pci9118dg), PCI-9118HG (pci9118hg),
- * PCI-9118HR (pci9118hr)
- * Status: works
- *
- * This driver supports AI, AO, DI and DO subdevices.
- * AI subdevice supports cmd and insn interface,
- * other subdevices support only insn interface.
- * For AI:
- * - If cmd->scan_begin_src=TRIG_EXT then trigger input is TGIN (pin 46).
- * - If cmd->convert_src=TRIG_EXT then trigger input is EXTTRG (pin 44).
- * - If cmd->start_src/stop_src=TRIG_EXT then trigger input is TGIN (pin 46).
- * - It is not necessary to have cmd.scan_end_arg=cmd.chanlist_len but
- * cmd.scan_end_arg modulo cmd.chanlist_len must by 0.
- * - If return value of cmdtest is 5 then you've bad channel list
- * (it isn't possible mixture S.E. and DIFF inputs or bipolar and unipolar
- * ranges).
- *
- * There are some hardware limitations:
- * a) You cann't use mixture of unipolar/bipoar ranges or differencial/single
- *  ended inputs.
- * b) DMA transfers must have the length aligned to two samples (32 bit),
- *  so there is some problems if cmd->chanlist_len is odd. This driver tries
- *  bypass this with adding one sample to the end of the every scan and discard
- *  it on output but this can't be used if cmd->scan_begin_src=TRIG_FOLLOW
- *  and is used flag CMDF_WAKE_EOS, then driver switch to interrupt driven mode
- *  with interrupt after every sample.
- * c) If isn't used DMA then you can use only mode where
- *  cmd->scan_begin_src=TRIG_FOLLOW.
- *
- * Configuration options:
- * [0] - PCI bus of device (optional)
- * [1] - PCI slot of device (optional)
- *	 If bus/slot is not specified, then first available PCI
- *	 card will be used.
- * [2] - 0= standard 8 DIFF/16 SE channels configuration
- *	 n = external multiplexer connected, 1 <= n <= 256
- * [3] - ignored
- * [4] - sample&hold signal - card can generate signal for external S&H board
- *	 0 = use SSHO(pin 45) signal is generated in onboard hardware S&H logic
- *	 0 != use ADCHN7(pin 23) signal is generated from driver, number say how
- *		long delay is requested in ns and sign polarity of the hold
- *		(in this case external multiplexor can serve only 128 channels)
- * [5] - ignored
- */
-
-/*
- * FIXME
- *
- * All the supported boards have the same PCI vendor and device IDs, so
- * auto-attachment of PCI devices will always find the first board type.
- *
- * Perhaps the boards have different subdevice IDs that we could use to
- * distinguish them?
- *
- * Need some device attributes so the board type can be corrected after
- * attachment if necessary, and possibly to set other options supported by
- * manual attachment.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/gfp.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-
-#include "../comedi_pci.h"
-
-#include "amcc_s5933.h"
-#include "comedi_8254.h"
-
-#define IORANGE_9118	64	/* I hope */
-#define PCI9118_CHANLEN	255	/*
-				 * len of chanlist, some source say 256,
-				 * but reality looks like 255 :-(
-				 */
-
-/*
- * PCI BAR2 Register map (dev->iobase)
- */
-#define PCI9118_TIMER_BASE		0x00
-#define PCI9118_AI_FIFO_REG		0x10
-#define PCI9118_AO_REG(x)		(0x10 + ((x) * 4))
-#define PCI9118_AI_STATUS_REG		0x18
-#define PCI9118_AI_STATUS_NFULL		(1 << 8)  /* 0=FIFO full (fatal) */
-#define PCI9118_AI_STATUS_NHFULL	(1 << 7)  /* 0=FIFO half full */
-#define PCI9118_AI_STATUS_NEPTY		(1 << 6)  /* 0=FIFO empty */
-#define PCI9118_AI_STATUS_ACMP		(1 << 5)  /* 1=about trigger complete */
-#define PCI9118_AI_STATUS_DTH		(1 << 4)  /* 1=ext. digital trigger */
-#define PCI9118_AI_STATUS_BOVER		(1 << 3)  /* 1=burst overrun (fatal) */
-#define PCI9118_AI_STATUS_ADOS		(1 << 2)  /* 1=A/D over speed (warn) */
-#define PCI9118_AI_STATUS_ADOR		(1 << 1)  /* 1=A/D overrun (fatal) */
-#define PCI9118_AI_STATUS_ADRDY		(1 << 0)  /* 1=A/D ready */
-#define PCI9118_AI_CTRL_REG		0x18
-#define PCI9118_AI_CTRL_UNIP		(1 << 7)  /* 1=unipolar */
-#define PCI9118_AI_CTRL_DIFF		(1 << 6)  /* 1=differential inputs */
-#define PCI9118_AI_CTRL_SOFTG		(1 << 5)  /* 1=8254 software gate */
-#define PCI9118_AI_CTRL_EXTG		(1 << 4)  /* 1=8254 TGIN(pin 46) gate */
-#define PCI9118_AI_CTRL_EXTM		(1 << 3)  /* 1=ext. trigger (pin 44) */
-#define PCI9118_AI_CTRL_TMRTR		(1 << 2)  /* 1=8254 is trigger source */
-#define PCI9118_AI_CTRL_INT		(1 << 1)  /* 1=enable interrupt */
-#define PCI9118_AI_CTRL_DMA		(1 << 0)  /* 1=enable DMA */
-#define PCI9118_DIO_REG			0x1c
-#define PCI9118_SOFTTRG_REG		0x20
-#define PCI9118_AI_CHANLIST_REG		0x24
-#define PCI9118_AI_CHANLIST_RANGE(x)	(((x) & 0x3) << 8)
-#define PCI9118_AI_CHANLIST_CHAN(x)	((x) << 0)
-#define PCI9118_AI_BURST_NUM_REG	0x28
-#define PCI9118_AI_AUTOSCAN_MODE_REG	0x2c
-#define PCI9118_AI_CFG_REG		0x30
-#define PCI9118_AI_CFG_PDTRG		(1 << 7)  /* 1=positive trigger */
-#define PCI9118_AI_CFG_PETRG		(1 << 6)  /* 1=positive ext. trigger */
-#define PCI9118_AI_CFG_BSSH		(1 << 5)  /* 1=with sample & hold */
-#define PCI9118_AI_CFG_BM		(1 << 4)  /* 1=burst mode */
-#define PCI9118_AI_CFG_BS		(1 << 3)  /* 1=burst mode start */
-#define PCI9118_AI_CFG_PM		(1 << 2)  /* 1=post trigger */
-#define PCI9118_AI_CFG_AM		(1 << 1)  /* 1=about trigger */
-#define PCI9118_AI_CFG_START		(1 << 0)  /* 1=trigger start */
-#define PCI9118_FIFO_RESET_REG		0x34
-#define PCI9118_INT_CTRL_REG		0x38
-#define PCI9118_INT_CTRL_TIMER		(1 << 3)  /* timer interrupt */
-#define PCI9118_INT_CTRL_ABOUT		(1 << 2)  /* about trigger complete */
-#define PCI9118_INT_CTRL_HFULL		(1 << 1)  /* A/D FIFO half full */
-#define PCI9118_INT_CTRL_DTRG		(1 << 0)  /* ext. digital trigger */
-
-#define START_AI_EXT	0x01	/* start measure on external trigger */
-#define STOP_AI_EXT	0x02	/* stop measure on external trigger */
-#define STOP_AI_INT	0x08	/* stop measure on internal trigger */
-
-#define PCI9118_HALF_FIFO_SZ	(1024 / 2)
-
-static const struct comedi_lrange pci9118_ai_range = {
-	8, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange pci9118hg_ai_range = {
-	8, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.005),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01)
-	}
-};
-
-#define PCI9118_BIPOLAR_RANGES	4	/*
-					 * used for test on mixture
-					 * of BIP/UNI ranges
-					 */
-
-enum pci9118_boardid {
-	BOARD_PCI9118DG,
-	BOARD_PCI9118HG,
-	BOARD_PCI9118HR,
-};
-
-struct pci9118_boardinfo {
-	const char *name;
-	unsigned int ai_is_16bit:1;
-	unsigned int is_hg:1;
-};
-
-static const struct pci9118_boardinfo pci9118_boards[] = {
-	[BOARD_PCI9118DG] = {
-		.name		= "pci9118dg",
-	},
-	[BOARD_PCI9118HG] = {
-		.name		= "pci9118hg",
-		.is_hg		= 1,
-	},
-	[BOARD_PCI9118HR] = {
-		.name		= "pci9118hr",
-		.ai_is_16bit	= 1,
-	},
-};
-
-struct pci9118_dmabuf {
-	unsigned short *virt;	/* virtual address of buffer */
-	dma_addr_t hw;		/* hardware (bus) address of buffer */
-	unsigned int size;	/* size of dma buffer in bytes */
-	unsigned int use_size;	/* which size we may now use for transfer */
-};
-
-struct pci9118_private {
-	unsigned long iobase_a;	/* base+size for AMCC chip */
-	unsigned int master:1;
-	unsigned int dma_doublebuf:1;
-	unsigned int ai_neverending:1;
-	unsigned int usedma:1;
-	unsigned int usemux:1;
-	unsigned char ai_ctrl;
-	unsigned char int_ctrl;
-	unsigned char ai_cfg;
-	unsigned int ai_do;		/* what do AI? 0=nothing, 1 to 4 mode */
-	unsigned int ai_n_realscanlen;	/*
-					 * what we must transfer for one
-					 * outgoing scan include front/back adds
-					 */
-	unsigned int ai_act_dmapos;	/* position in actual real stream */
-	unsigned int ai_add_front;	/*
-					 * how many channels we must add
-					 * before scan to satisfy S&H?
-					 */
-	unsigned int ai_add_back;	/*
-					 * how many channels we must add
-					 * before scan to satisfy DMA?
-					 */
-	unsigned int ai_flags;
-	char ai12_startstop;		/*
-					 * measure can start/stop
-					 * on external trigger
-					 */
-	unsigned int dma_actbuf;		/* which buffer is used now */
-	struct pci9118_dmabuf dmabuf[2];
-	int softsshdelay;		/*
-					 * >0 use software S&H,
-					 * numer is requested delay in ns
-					 */
-	unsigned char softsshsample;	/*
-					 * polarity of S&H signal
-					 * in sample state
-					 */
-	unsigned char softsshhold;	/*
-					 * polarity of S&H signal
-					 * in hold state
-					 */
-	unsigned int ai_ns_min;
-};
-
-static void pci9118_amcc_setup_dma(struct comedi_device *dev, unsigned int buf)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct pci9118_dmabuf *dmabuf = &devpriv->dmabuf[buf];
-
-	/* set the master write address and transfer count */
-	outl(dmabuf->hw, devpriv->iobase_a + AMCC_OP_REG_MWAR);
-	outl(dmabuf->use_size, devpriv->iobase_a + AMCC_OP_REG_MWTC);
-}
-
-static void pci9118_amcc_dma_ena(struct comedi_device *dev, bool enable)
-{
-	struct pci9118_private *devpriv = dev->private;
-	unsigned int mcsr;
-
-	mcsr = inl(devpriv->iobase_a + AMCC_OP_REG_MCSR);
-	if (enable)
-		mcsr |= RESET_A2P_FLAGS | A2P_HI_PRIORITY | EN_A2P_TRANSFERS;
-	else
-		mcsr &= ~EN_A2P_TRANSFERS;
-	outl(mcsr, devpriv->iobase_a + AMCC_OP_REG_MCSR);
-}
-
-static void pci9118_amcc_int_ena(struct comedi_device *dev, bool enable)
-{
-	struct pci9118_private *devpriv = dev->private;
-	unsigned int intcsr;
-
-	/* enable/disable interrupt for AMCC Incoming Mailbox 4 (32-bit) */
-	intcsr = inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-	if (enable)
-		intcsr |= 0x1f00;
-	else
-		intcsr &= ~0x1f00;
-	outl(intcsr, devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-}
-
-static void pci9118_ai_reset_fifo(struct comedi_device *dev)
-{
-	/* writing any value resets the A/D FIFO */
-	outl(0, dev->iobase + PCI9118_FIFO_RESET_REG);
-}
-
-static int check_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s, int n_chan,
-			      unsigned int *chanlist, int frontadd, int backadd)
-{
-	struct pci9118_private *devpriv = dev->private;
-	unsigned int i, differencial = 0, bipolar = 0;
-
-	/* correct channel and range number check itself comedi/range.c */
-	if (n_chan < 1) {
-		dev_err(dev->class_dev, "range/channel list is empty!\n");
-		return 0;
-	}
-	if ((frontadd + n_chan + backadd) > s->len_chanlist) {
-		dev_err(dev->class_dev,
-			"range/channel list is too long for actual configuration!\n");
-		return 0;
-	}
-
-	if (CR_AREF(chanlist[0]) == AREF_DIFF)
-		differencial = 1;	/* all input must be diff */
-	if (CR_RANGE(chanlist[0]) < PCI9118_BIPOLAR_RANGES)
-		bipolar = 1;	/* all input must be bipolar */
-	if (n_chan > 1)
-		for (i = 1; i < n_chan; i++) {	/* check S.E/diff */
-			if ((CR_AREF(chanlist[i]) == AREF_DIFF) !=
-			    (differencial)) {
-				dev_err(dev->class_dev,
-					"Differential and single ended inputs can't be mixed!\n");
-				return 0;
-			}
-			if ((CR_RANGE(chanlist[i]) < PCI9118_BIPOLAR_RANGES) !=
-			    (bipolar)) {
-				dev_err(dev->class_dev,
-					"Bipolar and unipolar ranges can't be mixed!\n");
-				return 0;
-			}
-			if (!devpriv->usemux && differencial &&
-			    (CR_CHAN(chanlist[i]) >= (s->n_chan / 2))) {
-				dev_err(dev->class_dev,
-					"AREF_DIFF is only available for the first 8 channels!\n");
-				return 0;
-			}
-		}
-
-	return 1;
-}
-
-static void pci9118_set_chanlist(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 int n_chan, unsigned int *chanlist,
-				 int frontadd, int backadd)
-{
-	struct pci9118_private *devpriv = dev->private;
-	unsigned int chan0 = CR_CHAN(chanlist[0]);
-	unsigned int range0 = CR_RANGE(chanlist[0]);
-	unsigned int aref0 = CR_AREF(chanlist[0]);
-	unsigned int ssh = 0x00;
-	unsigned int val;
-	int i;
-
-	/*
-	 * Configure analog input based on the first chanlist entry.
-	 * All entries are either unipolar or bipolar and single-ended
-	 * or differential.
-	 */
-	devpriv->ai_ctrl = 0;
-	if (comedi_range_is_unipolar(s, range0))
-		devpriv->ai_ctrl |= PCI9118_AI_CTRL_UNIP;
-	if (aref0 == AREF_DIFF)
-		devpriv->ai_ctrl |= PCI9118_AI_CTRL_DIFF;
-	outl(devpriv->ai_ctrl, dev->iobase + PCI9118_AI_CTRL_REG);
-
-	/* gods know why this sequence! */
-	outl(2, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-	outl(0, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-	outl(1, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-
-	/* insert channels for S&H */
-	if (frontadd) {
-		val = PCI9118_AI_CHANLIST_CHAN(chan0) |
-		      PCI9118_AI_CHANLIST_RANGE(range0);
-		ssh = devpriv->softsshsample;
-		for (i = 0; i < frontadd; i++) {
-			outl(val | ssh, dev->iobase + PCI9118_AI_CHANLIST_REG);
-			ssh = devpriv->softsshhold;
-		}
-	}
-
-	/* store chanlist */
-	for (i = 0; i < n_chan; i++) {
-		unsigned int chan = CR_CHAN(chanlist[i]);
-		unsigned int range = CR_RANGE(chanlist[i]);
-
-		val = PCI9118_AI_CHANLIST_CHAN(chan) |
-		      PCI9118_AI_CHANLIST_RANGE(range);
-		outl(val | ssh, dev->iobase + PCI9118_AI_CHANLIST_REG);
-	}
-
-	/* insert channels to fit onto 32bit DMA */
-	if (backadd) {
-		val = PCI9118_AI_CHANLIST_CHAN(chan0) |
-		      PCI9118_AI_CHANLIST_RANGE(range0);
-		for (i = 0; i < backadd; i++)
-			outl(val | ssh, dev->iobase + PCI9118_AI_CHANLIST_REG);
-	}
-	/* close scan queue */
-	outl(0, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-	/* udelay(100); important delay, or first sample will be crippled */
-}
-
-static void interrupt_pci9118_ai_mode4_switch(struct comedi_device *dev,
-					      unsigned int next_buf)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct pci9118_dmabuf *dmabuf = &devpriv->dmabuf[next_buf];
-
-	devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG |
-			  PCI9118_AI_CFG_AM;
-	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-	comedi_8254_load(dev->pacer, 0, dmabuf->hw >> 1,
-			 I8254_MODE0 | I8254_BINARY);
-	devpriv->ai_cfg |= PCI9118_AI_CFG_START;
-	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-}
-
-static unsigned int valid_samples_in_act_dma_buf(struct comedi_device *dev,
-						 struct comedi_subdevice *s,
-						 unsigned int n_raw_samples)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int start_pos = devpriv->ai_add_front;
-	unsigned int stop_pos = start_pos + cmd->chanlist_len;
-	unsigned int span_len = stop_pos + devpriv->ai_add_back;
-	unsigned int dma_pos = devpriv->ai_act_dmapos;
-	unsigned int whole_spans, n_samples, x;
-
-	if (span_len == cmd->chanlist_len)
-		return n_raw_samples;	/* use all samples */
-
-	/*
-	 * Not all samples are to be used.  Buffer contents consist of a
-	 * possibly non-whole number of spans and a region of each span
-	 * is to be used.
-	 *
-	 * Account for samples in whole number of spans.
-	 */
-	whole_spans = n_raw_samples / span_len;
-	n_samples = whole_spans * cmd->chanlist_len;
-	n_raw_samples -= whole_spans * span_len;
-
-	/*
-	 * Deal with remaining samples which could overlap up to two spans.
-	 */
-	while (n_raw_samples) {
-		if (dma_pos < start_pos) {
-			/* Skip samples before start position. */
-			x = start_pos - dma_pos;
-			if (x > n_raw_samples)
-				x = n_raw_samples;
-			dma_pos += x;
-			n_raw_samples -= x;
-			if (!n_raw_samples)
-				break;
-		}
-		if (dma_pos < stop_pos) {
-			/* Include samples before stop position. */
-			x = stop_pos - dma_pos;
-			if (x > n_raw_samples)
-				x = n_raw_samples;
-			n_samples += x;
-			dma_pos += x;
-			n_raw_samples -= x;
-		}
-		/* Advance to next span. */
-		start_pos += span_len;
-		stop_pos += span_len;
-	}
-	return n_samples;
-}
-
-static void move_block_from_dma(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned short *dma_buffer,
-				unsigned int n_raw_samples)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int start_pos = devpriv->ai_add_front;
-	unsigned int stop_pos = start_pos + cmd->chanlist_len;
-	unsigned int span_len = stop_pos + devpriv->ai_add_back;
-	unsigned int dma_pos = devpriv->ai_act_dmapos;
-	unsigned int x;
-
-	if (span_len == cmd->chanlist_len) {
-		/* All samples are to be copied. */
-		comedi_buf_write_samples(s, dma_buffer, n_raw_samples);
-		dma_pos += n_raw_samples;
-	} else {
-		/*
-		 * Not all samples are to be copied.  Buffer contents consist
-		 * of a possibly non-whole number of spans and a region of
-		 * each span is to be copied.
-		 */
-		while (n_raw_samples) {
-			if (dma_pos < start_pos) {
-				/* Skip samples before start position. */
-				x = start_pos - dma_pos;
-				if (x > n_raw_samples)
-					x = n_raw_samples;
-				dma_pos += x;
-				n_raw_samples -= x;
-				if (!n_raw_samples)
-					break;
-			}
-			if (dma_pos < stop_pos) {
-				/* Copy samples before stop position. */
-				x = stop_pos - dma_pos;
-				if (x > n_raw_samples)
-					x = n_raw_samples;
-				comedi_buf_write_samples(s, dma_buffer, x);
-				dma_pos += x;
-				n_raw_samples -= x;
-			}
-			/* Advance to next span. */
-			start_pos += span_len;
-			stop_pos += span_len;
-		}
-	}
-	/* Update position in span for next time. */
-	devpriv->ai_act_dmapos = dma_pos % span_len;
-}
-
-static void pci9118_exttrg_enable(struct comedi_device *dev, bool enable)
-{
-	struct pci9118_private *devpriv = dev->private;
-
-	if (enable)
-		devpriv->int_ctrl |= PCI9118_INT_CTRL_DTRG;
-	else
-		devpriv->int_ctrl &= ~PCI9118_INT_CTRL_DTRG;
-	outl(devpriv->int_ctrl, dev->iobase + PCI9118_INT_CTRL_REG);
-
-	if (devpriv->int_ctrl)
-		pci9118_amcc_int_ena(dev, true);
-	else
-		pci9118_amcc_int_ena(dev, false);
-}
-
-static void pci9118_calc_divisors(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int *tim1, unsigned int *tim2,
-				  unsigned int flags, int chans,
-				  unsigned int *div1, unsigned int *div2,
-				  unsigned int chnsshfront)
-{
-	struct comedi_8254 *pacer = dev->pacer;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	*div1 = *tim2 / pacer->osc_base;	/* convert timer (burst) */
-	*div2 = *tim1 / pacer->osc_base;	/* scan timer */
-	*div2 = *div2 / *div1;			/* major timer is c1*c2 */
-	if (*div2 < chans)
-		*div2 = chans;
-
-	*tim2 = *div1 * pacer->osc_base;	/* real convert timer */
-
-	if (cmd->convert_src == TRIG_NOW && !chnsshfront) {
-		/* use BSSH signal */
-		if (*div2 < (chans + 2))
-			*div2 = chans + 2;
-	}
-
-	*tim1 = *div1 * *div2 * pacer->osc_base;
-}
-
-static void pci9118_start_pacer(struct comedi_device *dev, int mode)
-{
-	if (mode == 1 || mode == 2 || mode == 4)
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-}
-
-static int pci9118_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct pci9118_private *devpriv = dev->private;
-
-	if (devpriv->usedma)
-		pci9118_amcc_dma_ena(dev, false);
-	pci9118_exttrg_enable(dev, false);
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
-	/* set default config (disable burst and triggers) */
-	devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
-	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-	/* reset acqusition control */
-	devpriv->ai_ctrl = 0;
-	outl(devpriv->ai_ctrl, dev->iobase + PCI9118_AI_CTRL_REG);
-	outl(0, dev->iobase + PCI9118_AI_BURST_NUM_REG);
-	/* reset scan queue */
-	outl(1, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-	outl(2, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-	pci9118_ai_reset_fifo(dev);
-
-	devpriv->int_ctrl = 0;
-	outl(devpriv->int_ctrl, dev->iobase + PCI9118_INT_CTRL_REG);
-	pci9118_amcc_int_ena(dev, false);
-
-	devpriv->ai_do = 0;
-	devpriv->usedma = 0;
-
-	devpriv->ai_act_dmapos = 0;
-	s->async->inttrig = NULL;
-	devpriv->ai_neverending = 0;
-	devpriv->dma_actbuf = 0;
-
-	return 0;
-}
-
-static void pci9118_ai_munge(struct comedi_device *dev,
-			     struct comedi_subdevice *s, void *data,
-			     unsigned int num_bytes,
-			     unsigned int start_chan_index)
-{
-	struct pci9118_private *devpriv = dev->private;
-	unsigned short *array = data;
-	unsigned int num_samples = comedi_bytes_to_samples(s, num_bytes);
-	unsigned int i;
-
-	for (i = 0; i < num_samples; i++) {
-		if (devpriv->usedma)
-			array[i] = be16_to_cpu(array[i]);
-		if (s->maxdata == 0xffff)
-			array[i] ^= 0x8000;
-		else
-			array[i] = (array[i] >> 4) & 0x0fff;
-	}
-}
-
-static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
-					   struct comedi_subdevice *s)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned short sampl;
-
-	sampl = inl(dev->iobase + PCI9118_AI_FIFO_REG);
-
-	comedi_buf_write_samples(s, &sampl, 1);
-
-	if (!devpriv->ai_neverending) {
-		if (s->async->scans_done >= cmd->stop_arg)
-			s->async->events |= COMEDI_CB_EOA;
-	}
-}
-
-static void interrupt_pci9118_ai_dma(struct comedi_device *dev,
-				     struct comedi_subdevice *s)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	struct pci9118_dmabuf *dmabuf = &devpriv->dmabuf[devpriv->dma_actbuf];
-	unsigned int n_all = comedi_bytes_to_samples(s, dmabuf->use_size);
-	unsigned int n_valid;
-	bool more_dma;
-
-	/* determine whether more DMA buffers to do after this one */
-	n_valid = valid_samples_in_act_dma_buf(dev, s, n_all);
-	more_dma = n_valid < comedi_nsamples_left(s, n_valid + 1);
-
-	/* switch DMA buffers and restart DMA if double buffering */
-	if (more_dma && devpriv->dma_doublebuf) {
-		devpriv->dma_actbuf = 1 - devpriv->dma_actbuf;
-		pci9118_amcc_setup_dma(dev, devpriv->dma_actbuf);
-		if (devpriv->ai_do == 4) {
-			interrupt_pci9118_ai_mode4_switch(dev,
-							  devpriv->dma_actbuf);
-		}
-	}
-
-	if (n_all)
-		move_block_from_dma(dev, s, dmabuf->virt, n_all);
-
-	if (!devpriv->ai_neverending) {
-		if (s->async->scans_done >= cmd->stop_arg)
-			s->async->events |= COMEDI_CB_EOA;
-	}
-
-	if (s->async->events & COMEDI_CB_CANCEL_MASK)
-		more_dma = false;
-
-	/* restart DMA if not double buffering */
-	if (more_dma && !devpriv->dma_doublebuf) {
-		pci9118_amcc_setup_dma(dev, 0);
-		if (devpriv->ai_do == 4)
-			interrupt_pci9118_ai_mode4_switch(dev, 0);
-	}
-}
-
-static irqreturn_t pci9118_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct pci9118_private *devpriv = dev->private;
-	unsigned int intsrc;	/* IRQ reasons from card */
-	unsigned int intcsr;	/* INT register from AMCC chip */
-	unsigned int adstat;	/* STATUS register */
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	intsrc = inl(dev->iobase + PCI9118_INT_CTRL_REG) & 0xf;
-	intcsr = inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-
-	if (!intsrc && !(intcsr & ANY_S593X_INT))
-		return IRQ_NONE;
-
-	outl(intcsr | 0x00ff0000, devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-
-	if (intcsr & MASTER_ABORT_INT) {
-		dev_err(dev->class_dev, "AMCC IRQ - MASTER DMA ABORT!\n");
-		s->async->events |= COMEDI_CB_ERROR;
-		goto interrupt_exit;
-	}
-
-	if (intcsr & TARGET_ABORT_INT) {
-		dev_err(dev->class_dev, "AMCC IRQ - TARGET DMA ABORT!\n");
-		s->async->events |= COMEDI_CB_ERROR;
-		goto interrupt_exit;
-	}
-
-	adstat = inl(dev->iobase + PCI9118_AI_STATUS_REG);
-	if ((adstat & PCI9118_AI_STATUS_NFULL) == 0) {
-		dev_err(dev->class_dev,
-			"A/D FIFO Full status (Fatal Error!)\n");
-		s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW;
-		goto interrupt_exit;
-	}
-	if (adstat & PCI9118_AI_STATUS_BOVER) {
-		dev_err(dev->class_dev,
-			"A/D Burst Mode Overrun Status (Fatal Error!)\n");
-		s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW;
-		goto interrupt_exit;
-	}
-	if (adstat & PCI9118_AI_STATUS_ADOS) {
-		dev_err(dev->class_dev, "A/D Over Speed Status (Warning!)\n");
-		s->async->events |= COMEDI_CB_ERROR;
-		goto interrupt_exit;
-	}
-	if (adstat & PCI9118_AI_STATUS_ADOR) {
-		dev_err(dev->class_dev, "A/D Overrun Status (Fatal Error!)\n");
-		s->async->events |= COMEDI_CB_ERROR | COMEDI_CB_OVERFLOW;
-		goto interrupt_exit;
-	}
-
-	if (!devpriv->ai_do)
-		return IRQ_HANDLED;
-
-	if (devpriv->ai12_startstop) {
-		if ((adstat & PCI9118_AI_STATUS_DTH) &&
-		    (intsrc & PCI9118_INT_CTRL_DTRG)) {
-			/* start/stop of measure */
-			if (devpriv->ai12_startstop & START_AI_EXT) {
-				/* deactivate EXT trigger */
-				devpriv->ai12_startstop &= ~START_AI_EXT;
-				if (!(devpriv->ai12_startstop & STOP_AI_EXT))
-					pci9118_exttrg_enable(dev, false);
-
-				/* start pacer */
-				pci9118_start_pacer(dev, devpriv->ai_do);
-				outl(devpriv->ai_ctrl,
-				     dev->iobase + PCI9118_AI_CTRL_REG);
-			} else if (devpriv->ai12_startstop & STOP_AI_EXT) {
-				/* deactivate EXT trigger */
-				devpriv->ai12_startstop &= ~STOP_AI_EXT;
-				pci9118_exttrg_enable(dev, false);
-
-				/* on next interrupt measure will stop */
-				devpriv->ai_neverending = 0;
-			}
-		}
-	}
-
-	if (devpriv->usedma)
-		interrupt_pci9118_ai_dma(dev, s);
-	else
-		interrupt_pci9118_ai_onesample(dev, s);
-
-interrupt_exit:
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static void pci9118_ai_cmd_start(struct comedi_device *dev)
-{
-	struct pci9118_private *devpriv = dev->private;
-
-	outl(devpriv->int_ctrl, dev->iobase + PCI9118_INT_CTRL_REG);
-	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-	if (devpriv->ai_do != 3) {
-		pci9118_start_pacer(dev, devpriv->ai_do);
-		devpriv->ai_ctrl |= PCI9118_AI_CTRL_SOFTG;
-	}
-	outl(devpriv->ai_ctrl, dev->iobase + PCI9118_AI_CTRL_REG);
-}
-
-static int pci9118_ai_inttrig(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      unsigned int trig_num)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	s->async->inttrig = NULL;
-	pci9118_ai_cmd_start(dev);
-
-	return 1;
-}
-
-static int Compute_and_setup_dma(struct comedi_device *dev,
-				 struct comedi_subdevice *s)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	struct pci9118_dmabuf *dmabuf0 = &devpriv->dmabuf[0];
-	struct pci9118_dmabuf *dmabuf1 = &devpriv->dmabuf[1];
-	unsigned int dmalen0, dmalen1, i;
-
-	dmalen0 = dmabuf0->size;
-	dmalen1 = dmabuf1->size;
-	/* isn't output buff smaller that our DMA buff? */
-	if (dmalen0 > s->async->prealloc_bufsz) {
-		/* align to 32bit down */
-		dmalen0 = s->async->prealloc_bufsz & ~3L;
-	}
-	if (dmalen1 > s->async->prealloc_bufsz) {
-		/* align to 32bit down */
-		dmalen1 = s->async->prealloc_bufsz & ~3L;
-	}
-
-	/* we want wake up every scan? */
-	if (devpriv->ai_flags & CMDF_WAKE_EOS) {
-		if (dmalen0 < (devpriv->ai_n_realscanlen << 1)) {
-			/* uff, too short DMA buffer, disable EOS support! */
-			devpriv->ai_flags &= (~CMDF_WAKE_EOS);
-			dev_info(dev->class_dev,
-				 "WAR: DMA0 buf too short, can't support CMDF_WAKE_EOS (%d<%d)\n",
-				  dmalen0, devpriv->ai_n_realscanlen << 1);
-		} else {
-			/* short first DMA buffer to one scan */
-			dmalen0 = devpriv->ai_n_realscanlen << 1;
-			if (dmalen0 < 4) {
-				dev_info(dev->class_dev,
-					 "ERR: DMA0 buf len bug? (%d<4)\n",
-					 dmalen0);
-				dmalen0 = 4;
-			}
-		}
-	}
-	if (devpriv->ai_flags & CMDF_WAKE_EOS) {
-		if (dmalen1 < (devpriv->ai_n_realscanlen << 1)) {
-			/* uff, too short DMA buffer, disable EOS support! */
-			devpriv->ai_flags &= (~CMDF_WAKE_EOS);
-			dev_info(dev->class_dev,
-				 "WAR: DMA1 buf too short, can't support CMDF_WAKE_EOS (%d<%d)\n",
-				 dmalen1, devpriv->ai_n_realscanlen << 1);
-		} else {
-			/* short second DMA buffer to one scan */
-			dmalen1 = devpriv->ai_n_realscanlen << 1;
-			if (dmalen1 < 4) {
-				dev_info(dev->class_dev,
-					 "ERR: DMA1 buf len bug? (%d<4)\n",
-					 dmalen1);
-				dmalen1 = 4;
-			}
-		}
-	}
-
-	/* transfer without CMDF_WAKE_EOS */
-	if (!(devpriv->ai_flags & CMDF_WAKE_EOS)) {
-		/* if it's possible then align DMA buffers to length of scan */
-		i = dmalen0;
-		dmalen0 =
-		    (dmalen0 / (devpriv->ai_n_realscanlen << 1)) *
-		    (devpriv->ai_n_realscanlen << 1);
-		dmalen0 &= ~3L;
-		if (!dmalen0)
-			dmalen0 = i;	/* uff. very long scan? */
-		i = dmalen1;
-		dmalen1 =
-		    (dmalen1 / (devpriv->ai_n_realscanlen << 1)) *
-		    (devpriv->ai_n_realscanlen << 1);
-		dmalen1 &= ~3L;
-		if (!dmalen1)
-			dmalen1 = i;	/* uff. very long scan? */
-		/*
-		 * if measure isn't neverending then test, if it fits whole
-		 * into one or two DMA buffers
-		 */
-		if (!devpriv->ai_neverending) {
-			/* fits whole measure into one DMA buffer? */
-			if (dmalen0 >
-			    ((devpriv->ai_n_realscanlen << 1) *
-			     cmd->stop_arg)) {
-				dmalen0 =
-				    (devpriv->ai_n_realscanlen << 1) *
-				    cmd->stop_arg;
-				dmalen0 &= ~3L;
-			} else {	/*
-					 * fits whole measure into
-					 * two DMA buffer?
-					 */
-				if (dmalen1 >
-				    ((devpriv->ai_n_realscanlen << 1) *
-				     cmd->stop_arg - dmalen0))
-					dmalen1 =
-					    (devpriv->ai_n_realscanlen << 1) *
-					    cmd->stop_arg - dmalen0;
-				dmalen1 &= ~3L;
-			}
-		}
-	}
-
-	/* these DMA buffer size will be used */
-	devpriv->dma_actbuf = 0;
-	dmabuf0->use_size = dmalen0;
-	dmabuf1->use_size = dmalen1;
-
-	pci9118_amcc_dma_ena(dev, false);
-	pci9118_amcc_setup_dma(dev, 0);
-	/* init DMA transfer */
-	outl(0x00000000 | AINT_WRITE_COMPL,
-	     devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-/* outl(0x02000000|AINT_WRITE_COMPL, devpriv->iobase_a+AMCC_OP_REG_INTCSR); */
-	pci9118_amcc_dma_ena(dev, true);
-	outl(inl(devpriv->iobase_a + AMCC_OP_REG_INTCSR) | EN_A2P_TRANSFERS,
-	     devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-						/* allow bus mastering */
-
-	return 0;
-}
-
-static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct comedi_8254 *pacer = dev->pacer;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int addchans = 0;
-
-	devpriv->ai12_startstop = 0;
-	devpriv->ai_flags = cmd->flags;
-	devpriv->ai_add_front = 0;
-	devpriv->ai_add_back = 0;
-
-	/* prepare for start/stop conditions */
-	if (cmd->start_src == TRIG_EXT)
-		devpriv->ai12_startstop |= START_AI_EXT;
-	if (cmd->stop_src == TRIG_EXT) {
-		devpriv->ai_neverending = 1;
-		devpriv->ai12_startstop |= STOP_AI_EXT;
-	}
-	if (cmd->stop_src == TRIG_NONE)
-		devpriv->ai_neverending = 1;
-	if (cmd->stop_src == TRIG_COUNT)
-		devpriv->ai_neverending = 0;
-
-	/*
-	 * use additional sample at end of every scan
-	 * to satisty DMA 32 bit transfer?
-	 */
-	devpriv->ai_add_front = 0;
-	devpriv->ai_add_back = 0;
-	if (devpriv->master) {
-		devpriv->usedma = 1;
-		if ((cmd->flags & CMDF_WAKE_EOS) &&
-		    (cmd->scan_end_arg == 1)) {
-			if (cmd->convert_src == TRIG_NOW)
-				devpriv->ai_add_back = 1;
-			if (cmd->convert_src == TRIG_TIMER) {
-				devpriv->usedma = 0;
-					/*
-					 * use INT transfer if scanlist
-					 * have only one channel
-					 */
-			}
-		}
-		if ((cmd->flags & CMDF_WAKE_EOS) &&
-		    (cmd->scan_end_arg & 1) &&
-		    (cmd->scan_end_arg > 1)) {
-			if (cmd->scan_begin_src == TRIG_FOLLOW) {
-				devpriv->usedma = 0;
-				/*
-				 * XXX maybe can be corrected to use 16 bit DMA
-				 */
-			} else {	/*
-					 * well, we must insert one sample
-					 * to end of EOS to meet 32 bit transfer
-					 */
-				devpriv->ai_add_back = 1;
-			}
-		}
-	} else {	/* interrupt transfer don't need any correction */
-		devpriv->usedma = 0;
-	}
-
-	/*
-	 * we need software S&H signal?
-	 * It adds two samples before every scan as minimum
-	 */
-	if (cmd->convert_src == TRIG_NOW && devpriv->softsshdelay) {
-		devpriv->ai_add_front = 2;
-		if ((devpriv->usedma == 1) && (devpriv->ai_add_back == 1)) {
-							/* move it to front */
-			devpriv->ai_add_front++;
-			devpriv->ai_add_back = 0;
-		}
-		if (cmd->convert_arg < devpriv->ai_ns_min)
-			cmd->convert_arg = devpriv->ai_ns_min;
-		addchans = devpriv->softsshdelay / cmd->convert_arg;
-		if (devpriv->softsshdelay % cmd->convert_arg)
-			addchans++;
-		if (addchans > (devpriv->ai_add_front - 1)) {
-							/* uff, still short */
-			devpriv->ai_add_front = addchans + 1;
-			if (devpriv->usedma == 1)
-				if ((devpriv->ai_add_front +
-				     cmd->chanlist_len +
-				     devpriv->ai_add_back) & 1)
-					devpriv->ai_add_front++;
-							/* round up to 32 bit */
-		}
-	}
-	/* well, we now know what must be all added */
-	devpriv->ai_n_realscanlen =	/*
-					 * what we must take from card in real
-					 * to have cmd->scan_end_arg on output?
-					 */
-	    (devpriv->ai_add_front + cmd->chanlist_len +
-	     devpriv->ai_add_back) * (cmd->scan_end_arg /
-				      cmd->chanlist_len);
-
-	/* check and setup channel list */
-	if (!check_channel_list(dev, s, cmd->chanlist_len,
-				cmd->chanlist, devpriv->ai_add_front,
-				devpriv->ai_add_back))
-		return -EINVAL;
-
-	/*
-	 * Configure analog input and load the chanlist.
-	 * The acqusition control bits are enabled later.
-	 */
-	pci9118_set_chanlist(dev, s, cmd->chanlist_len, cmd->chanlist,
-			     devpriv->ai_add_front, devpriv->ai_add_back);
-
-	/* Determine acqusition mode and calculate timing */
-	devpriv->ai_do = 0;
-	if (cmd->scan_begin_src != TRIG_TIMER &&
-	    cmd->convert_src == TRIG_TIMER) {
-		/* cascaded timers 1 and 2 are used for convert timing */
-		if (cmd->scan_begin_src == TRIG_EXT)
-			devpriv->ai_do = 4;
-		else
-			devpriv->ai_do = 1;
-
-		comedi_8254_cascade_ns_to_timer(pacer, &cmd->convert_arg,
-						devpriv->ai_flags &
-						CMDF_ROUND_NEAREST);
-		comedi_8254_update_divisors(pacer);
-
-		devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR;
-
-		if (!devpriv->usedma) {
-			devpriv->ai_ctrl |= PCI9118_AI_CTRL_INT;
-			devpriv->int_ctrl |= PCI9118_INT_CTRL_TIMER;
-		}
-
-		if (cmd->scan_begin_src == TRIG_EXT) {
-			struct pci9118_dmabuf *dmabuf = &devpriv->dmabuf[0];
-
-			devpriv->ai_cfg |= PCI9118_AI_CFG_AM;
-			outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-			comedi_8254_load(pacer, 0, dmabuf->hw >> 1,
-					 I8254_MODE0 | I8254_BINARY);
-			devpriv->ai_cfg |= PCI9118_AI_CFG_START;
-		}
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER &&
-	    cmd->convert_src != TRIG_EXT) {
-		if (!devpriv->usedma) {
-			dev_err(dev->class_dev,
-				"cmd->scan_begin_src=TRIG_TIMER works only with bus mastering!\n");
-			return -EIO;
-		}
-
-		/* double timed action */
-		devpriv->ai_do = 2;
-
-		pci9118_calc_divisors(dev, s,
-				      &cmd->scan_begin_arg, &cmd->convert_arg,
-				      devpriv->ai_flags,
-				      devpriv->ai_n_realscanlen,
-				      &pacer->divisor1,
-				      &pacer->divisor2,
-				      devpriv->ai_add_front);
-
-		devpriv->ai_ctrl |= PCI9118_AI_CTRL_TMRTR;
-		devpriv->ai_cfg |= PCI9118_AI_CFG_BM | PCI9118_AI_CFG_BS;
-		if (cmd->convert_src == TRIG_NOW && !devpriv->softsshdelay)
-			devpriv->ai_cfg |= PCI9118_AI_CFG_BSSH;
-		outl(devpriv->ai_n_realscanlen,
-		     dev->iobase + PCI9118_AI_BURST_NUM_REG);
-	}
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW &&
-	    cmd->convert_src == TRIG_EXT) {
-		/* external trigger conversion */
-		devpriv->ai_do = 3;
-
-		devpriv->ai_ctrl |= PCI9118_AI_CTRL_EXTM;
-	}
-
-	if (devpriv->ai_do == 0) {
-		dev_err(dev->class_dev,
-			"Unable to determine acqusition mode! BUG in (*do_cmdtest)?\n");
-		return -EINVAL;
-	}
-
-	if (devpriv->usedma)
-		devpriv->ai_ctrl |= PCI9118_AI_CTRL_DMA;
-
-	/* set default config (disable burst and triggers) */
-	devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
-	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-	udelay(1);
-	pci9118_ai_reset_fifo(dev);
-
-	/* clear A/D and INT status registers */
-	inl(dev->iobase + PCI9118_AI_STATUS_REG);
-	inl(dev->iobase + PCI9118_INT_CTRL_REG);
-
-	devpriv->ai_act_dmapos = 0;
-
-	if (devpriv->usedma) {
-		Compute_and_setup_dma(dev, s);
-
-		outl(0x02000000 | AINT_WRITE_COMPL,
-		     devpriv->iobase_a + AMCC_OP_REG_INTCSR);
-	} else {
-		pci9118_amcc_int_ena(dev, true);
-	}
-
-	/* start async command now or wait for internal trigger */
-	if (cmd->start_src == TRIG_NOW)
-		pci9118_ai_cmd_start(dev);
-	else if (cmd->start_src == TRIG_INT)
-		s->async->inttrig = pci9118_ai_inttrig;
-
-	/* enable external trigger for command start/stop */
-	if (cmd->start_src == TRIG_EXT || cmd->stop_src == TRIG_EXT)
-		pci9118_exttrg_enable(dev, true);
-
-	return 0;
-}
-
-static int pci9118_ai_cmdtest(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_cmd *cmd)
-{
-	struct pci9118_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int flags;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src,
-					TRIG_NOW | TRIG_EXT | TRIG_INT);
-
-	flags = TRIG_FOLLOW;
-	if (devpriv->master)
-		flags |= TRIG_TIMER | TRIG_EXT;
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, flags);
-
-	flags = TRIG_TIMER | TRIG_EXT;
-	if (devpriv->master)
-		flags |= TRIG_NOW;
-	err |= comedi_check_trigger_src(&cmd->convert_src, flags);
-
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src,
-					TRIG_COUNT | TRIG_NONE | TRIG_EXT);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->start_src == TRIG_EXT && cmd->scan_begin_src == TRIG_EXT)
-		err |= -EINVAL;
-
-	if (cmd->start_src == TRIG_INT && cmd->scan_begin_src == TRIG_INT)
-		err |= -EINVAL;
-
-	if ((cmd->scan_begin_src & (TRIG_TIMER | TRIG_EXT)) &&
-	    (!(cmd->convert_src & (TRIG_TIMER | TRIG_NOW))))
-		err |= -EINVAL;
-
-	if ((cmd->scan_begin_src == TRIG_FOLLOW) &&
-	    (!(cmd->convert_src & (TRIG_TIMER | TRIG_EXT))))
-		err |= -EINVAL;
-
-	if (cmd->stop_src == TRIG_EXT && cmd->scan_begin_src == TRIG_EXT)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-	case TRIG_EXT:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_INT:
-		/* start_arg is the internal trigger (any value) */
-		break;
-	}
-
-	if (cmd->scan_begin_src & (TRIG_FOLLOW | TRIG_EXT))
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if ((cmd->scan_begin_src == TRIG_TIMER) &&
-	    (cmd->convert_src == TRIG_TIMER) && (cmd->scan_end_arg == 1)) {
-		cmd->scan_begin_src = TRIG_FOLLOW;
-		cmd->convert_arg = cmd->scan_begin_arg;
-		cmd->scan_begin_arg = 0;
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    devpriv->ai_ns_min);
-	}
-
-	if (cmd->scan_begin_src == TRIG_EXT) {
-		if (cmd->scan_begin_arg) {
-			cmd->scan_begin_arg = 0;
-			err |= -EINVAL;
-			err |= comedi_check_trigger_arg_max(&cmd->scan_end_arg,
-							    65535);
-		}
-	}
-
-	if (cmd->convert_src & (TRIG_TIMER | TRIG_NOW)) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    devpriv->ai_ns_min);
-	}
-
-	if (cmd->convert_src == TRIG_EXT)
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-
-	err |= comedi_check_trigger_arg_min(&cmd->scan_end_arg,
-					    cmd->chanlist_len);
-
-	if ((cmd->scan_end_arg % cmd->chanlist_len)) {
-		cmd->scan_end_arg =
-		    cmd->chanlist_len * (cmd->scan_end_arg / cmd->chanlist_len);
-		err |= -EINVAL;
-	}
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (cmd->convert_src & (TRIG_TIMER | TRIG_NOW)) {
-		arg = cmd->convert_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-		if (cmd->scan_begin_src == TRIG_TIMER &&
-		    cmd->convert_src == TRIG_NOW) {
-			if (cmd->convert_arg == 0) {
-				arg = devpriv->ai_ns_min *
-				      (cmd->scan_end_arg + 2);
-			} else {
-				arg = cmd->convert_arg * cmd->chanlist_len;
-			}
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    arg);
-		}
-	}
-
-	if (err)
-		return 4;
-
-	if (cmd->chanlist)
-		if (!check_channel_list(dev, s, cmd->chanlist_len,
-					cmd->chanlist, 0, 0))
-			return 5;	/* incorrect channels list */
-
-	return 0;
-}
-
-static int pci9118_ai_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned int status;
-
-	status = inl(dev->iobase + PCI9118_AI_STATUS_REG);
-	if (status & PCI9118_AI_STATUS_ADRDY)
-		return 0;
-	return -EBUSY;
-}
-
-static void pci9118_ai_start_conv(struct comedi_device *dev)
-{
-	/* writing any value triggers an A/D conversion */
-	outl(0, dev->iobase + PCI9118_SOFTTRG_REG);
-}
-
-static int pci9118_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct pci9118_private *devpriv = dev->private;
-	unsigned int val;
-	int ret;
-	int i;
-
-       /*
-	* Configure analog input based on the chanspec.
-	* Acqusition is software controlled without interrupts.
-	*/
-	pci9118_set_chanlist(dev, s, 1, &insn->chanspec, 0, 0);
-
-	/* set default config (disable burst and triggers) */
-	devpriv->ai_cfg = PCI9118_AI_CFG_PDTRG | PCI9118_AI_CFG_PETRG;
-	outl(devpriv->ai_cfg, dev->iobase + PCI9118_AI_CFG_REG);
-
-	pci9118_ai_reset_fifo(dev);
-
-	for (i = 0; i < insn->n; i++) {
-		pci9118_ai_start_conv(dev);
-
-		ret = comedi_timeout(dev, s, insn, pci9118_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		val = inl(dev->iobase + PCI9118_AI_FIFO_REG);
-		if (s->maxdata == 0xffff)
-			data[i] = (val & 0xffff) ^ 0x8000;
-		else
-			data[i] = (val >> 4) & 0xfff;
-	}
-
-	return insn->n;
-}
-
-static int pci9118_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outl(val, dev->iobase + PCI9118_AO_REG(chan));
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pci9118_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	/*
-	 * The digital inputs and outputs share the read register.
-	 * bits [7:4] are the digital outputs
-	 * bits [3:0] are the digital inputs
-	 */
-	data[1] = inl(dev->iobase + PCI9118_DIO_REG) & 0xf;
-
-	return insn->n;
-}
-
-static int pci9118_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	/*
-	 * The digital outputs are set with the same register that
-	 * the digital inputs and outputs are read from. But the
-	 * outputs are set with bits [3:0] so we can simply write
-	 * the s->state to set them.
-	 */
-	if (comedi_dio_update_state(s, data))
-		outl(s->state, dev->iobase + PCI9118_DIO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void pci9118_reset(struct comedi_device *dev)
-{
-	/* reset analog input subsystem */
-	outl(0, dev->iobase + PCI9118_INT_CTRL_REG);
-	outl(0, dev->iobase + PCI9118_AI_CTRL_REG);
-	outl(0, dev->iobase + PCI9118_AI_CFG_REG);
-	pci9118_ai_reset_fifo(dev);
-
-	/* clear any pending interrupts and status */
-	inl(dev->iobase + PCI9118_INT_CTRL_REG);
-	inl(dev->iobase + PCI9118_AI_STATUS_REG);
-
-	/* reset DMA and scan queue */
-	outl(0, dev->iobase + PCI9118_AI_BURST_NUM_REG);
-	outl(1, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-	outl(2, dev->iobase + PCI9118_AI_AUTOSCAN_MODE_REG);
-
-	/* reset analog outputs to 0V */
-	outl(2047, dev->iobase + PCI9118_AO_REG(0));
-	outl(2047, dev->iobase + PCI9118_AO_REG(1));
-}
-
-static struct pci_dev *pci9118_find_pci(struct comedi_device *dev,
-					struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev = NULL;
-	int bus = it->options[0];
-	int slot = it->options[1];
-
-	for_each_pci_dev(pcidev) {
-		if (pcidev->vendor != PCI_VENDOR_ID_AMCC)
-			continue;
-		if (pcidev->device != 0x80d9)
-			continue;
-		if (bus || slot) {
-			/* requested particular bus/slot */
-			if (pcidev->bus->number != bus ||
-			    PCI_SLOT(pcidev->devfn) != slot)
-				continue;
-		}
-		return pcidev;
-	}
-	dev_err(dev->class_dev,
-		"no supported board found! (req. bus/slot : %d/%d)\n",
-		bus, slot);
-	return NULL;
-}
-
-static void pci9118_alloc_dma(struct comedi_device *dev)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct pci9118_dmabuf *dmabuf;
-	int order;
-	int i;
-
-	for (i = 0; i < 2; i++) {
-		dmabuf = &devpriv->dmabuf[i];
-		for (order = 2; order >= 0; order--) {
-			dmabuf->virt =
-			    dma_alloc_coherent(dev->hw_dev, PAGE_SIZE << order,
-					       &dmabuf->hw, GFP_KERNEL);
-			if (dmabuf->virt)
-				break;
-		}
-		if (!dmabuf->virt)
-			break;
-		dmabuf->size = PAGE_SIZE << order;
-
-		if (i == 0)
-			devpriv->master = 1;
-		if (i == 1)
-			devpriv->dma_doublebuf = 1;
-	}
-}
-
-static void pci9118_free_dma(struct comedi_device *dev)
-{
-	struct pci9118_private *devpriv = dev->private;
-	struct pci9118_dmabuf *dmabuf;
-	int i;
-
-	if (!devpriv)
-		return;
-
-	for (i = 0; i < 2; i++) {
-		dmabuf = &devpriv->dmabuf[i];
-		if (dmabuf->virt) {
-			dma_free_coherent(dev->hw_dev, dmabuf->size,
-					  dmabuf->virt, dmabuf->hw);
-		}
-	}
-}
-
-static int pci9118_common_attach(struct comedi_device *dev,
-				 int ext_mux, int softsshdelay)
-{
-	const struct pci9118_boardinfo *board = dev->board_ptr;
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct pci9118_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-	u16 u16w;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	pci_set_master(pcidev);
-
-	devpriv->iobase_a = pci_resource_start(pcidev, 0);
-	dev->iobase = pci_resource_start(pcidev, 2);
-
-	dev->pacer = comedi_8254_init(dev->iobase + PCI9118_TIMER_BASE,
-				      I8254_OSC_BASE_4MHZ, I8254_IO32, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	pci9118_reset(dev);
-
-	if (pcidev->irq) {
-		ret = request_irq(pcidev->irq, pci9118_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0) {
-			dev->irq = pcidev->irq;
-
-			pci9118_alloc_dma(dev);
-		}
-	}
-
-	if (ext_mux > 0) {
-		if (ext_mux > 256)
-			ext_mux = 256;	/* max 256 channels! */
-		if (softsshdelay > 0)
-			if (ext_mux > 128)
-				ext_mux = 128;
-		devpriv->usemux = 1;
-	} else {
-		devpriv->usemux = 0;
-	}
-
-	if (softsshdelay < 0) {
-		/* select sample&hold signal polarity */
-		devpriv->softsshdelay = -softsshdelay;
-		devpriv->softsshsample = 0x80;
-		devpriv->softsshhold = 0x00;
-	} else {
-		devpriv->softsshdelay = softsshdelay;
-		devpriv->softsshsample = 0x00;
-		devpriv->softsshhold = 0x80;
-	}
-
-	pci_read_config_word(pcidev, PCI_COMMAND, &u16w);
-	pci_write_config_word(pcidev, PCI_COMMAND, u16w | 64);
-				/* Enable parity check for parity error */
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;
-	s->n_chan	= (devpriv->usemux) ? ext_mux : 16;
-	s->maxdata	= board->ai_is_16bit ? 0xffff : 0x0fff;
-	s->range_table	= board->is_hg ? &pci9118hg_ai_range
-				       : &pci9118_ai_range;
-	s->insn_read	= pci9118_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= PCI9118_CHANLEN;
-		s->do_cmdtest	= pci9118_ai_cmdtest;
-		s->do_cmd	= pci9118_ai_cmd;
-		s->cancel	= pci9118_ai_cancel;
-		s->munge	= pci9118_ai_munge;
-	}
-
-	if (s->maxdata == 0xffff) {
-		/*
-		 * 16-bit samples are from an ADS7805 A/D converter.
-		 * Minimum sampling rate is 10us.
-		 */
-		devpriv->ai_ns_min = 10000;
-	} else {
-		/*
-		 * 12-bit samples are from an ADS7800 A/D converter.
-		 * Minimum sampling rate is 3us.
-		 */
-		devpriv->ai_ns_min = 3000;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-	s->n_chan	= 2;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &range_bipolar10;
-	s->insn_write	= pci9118_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* the analog outputs were reset to 0V, make the readback match */
-	for (i = 0; i < s->n_chan; i++)
-		s->readback[i] = 2047;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pci9118_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pci9118_do_insn_bits;
-
-	/* get the current state of the digital outputs */
-	s->state = inl(dev->iobase + PCI9118_DIO_REG) >> 4;
-
-	return 0;
-}
-
-static int pci9118_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct pci_dev *pcidev;
-	int ext_mux, softsshdelay;
-
-	ext_mux = it->options[2];
-	softsshdelay = it->options[4];
-
-	pcidev = pci9118_find_pci(dev, it);
-	if (!pcidev)
-		return -EIO;
-	comedi_set_hw_dev(dev, &pcidev->dev);
-
-	return pci9118_common_attach(dev, ext_mux, softsshdelay);
-}
-
-static int pci9118_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct pci9118_boardinfo *board = NULL;
-
-	if (context < ARRAY_SIZE(pci9118_boards))
-		board = &pci9118_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	/*
-	 * Need to 'get' the PCI device to match the 'put' in pci9118_detach().
-	 * (The 'put' also matches the implicit 'get' by pci9118_find_pci().)
-	 */
-	pci_dev_get(pcidev);
-	/* no external mux, no sample-hold delay */
-	return pci9118_common_attach(dev, 0, 0);
-}
-
-static void pci9118_detach(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-
-	if (dev->iobase)
-		pci9118_reset(dev);
-	comedi_pci_detach(dev);
-	pci9118_free_dma(dev);
-	if (pcidev)
-		pci_dev_put(pcidev);
-}
-
-static struct comedi_driver adl_pci9118_driver = {
-	.driver_name	= "adl_pci9118",
-	.module		= THIS_MODULE,
-	.attach		= pci9118_attach,
-	.auto_attach	= pci9118_auto_attach,
-	.detach		= pci9118_detach,
-	.num_names	= ARRAY_SIZE(pci9118_boards),
-	.board_name	= &pci9118_boards[0].name,
-	.offset		= sizeof(struct pci9118_boardinfo),
-};
-
-static int adl_pci9118_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adl_pci9118_driver,
-				      id->driver_data);
-}
-
-/* FIXME: All the supported board types have the same device ID! */
-static const struct pci_device_id adl_pci9118_pci_table[] = {
-	{ PCI_VDEVICE(AMCC, 0x80d9), BOARD_PCI9118DG },
-/*	{ PCI_VDEVICE(AMCC, 0x80d9), BOARD_PCI9118HG }, */
-/*	{ PCI_VDEVICE(AMCC, 0x80d9), BOARD_PCI9118HR }, */
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adl_pci9118_pci_table);
-
-static struct pci_driver adl_pci9118_pci_driver = {
-	.name		= "adl_pci9118",
-	.id_table	= adl_pci9118_pci_table,
-	.probe		= adl_pci9118_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adl_pci9118_driver, adl_pci9118_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
deleted file mode 100644
index bc5f97f50f9a..000000000000
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
-    comedi/drivers/adq12b.c
-    driver for MicroAxial ADQ12-B data acquisition and control card
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: adq12b
-Description: driver for MicroAxial ADQ12-B data acquisition and control card
-Devices: [MicroAxial] ADQ12-B (adq12b)
-Author: jeremy theler <thelerg@ib.cnea.gov.ar>
-Updated: Thu, 21 Feb 2008 02:56:27 -0300
-Status: works
-
-Driver for the acquisition card ADQ12-B (without any add-on).
-
- - Analog input is subdevice 0 (16 channels single-ended or 8 differential)
- - Digital input is subdevice 1 (5 channels)
- - Digital output is subdevice 1 (8 channels)
- - The PACER is not supported in this version
-
-If you do not specify any options, they will default to
-
-  # comedi_config /dev/comedi0 adq12b 0x300,0,0
-
-  option 1: I/O base address. The following table is provided as a help
-   of the hardware jumpers.
-
-	 address            jumper JADR
-	  0x300                 1 (factory default)
-	  0x320                 2
-	  0x340                 3
-	  0x360                 4
-	  0x380                 5
-	  0x3A0                 6
-
-  option 2: unipolar/bipolar ADC selection: 0 -> bipolar, 1 -> unipolar
-
-	selection         comedi_config option            JUB
-	 bipolar                0                         2-3 (factory default)
-	 unipolar               1                         1-2
-
-  option 3: single-ended/differential AI selection: 0 -> SE, 1 -> differential
-
-	selection         comedi_config option     JCHA    JCHB
-       single-ended             0                  1-2     1-2 (factory default)
-       differential             1                  2-3     2-3
-
-   written by jeremy theler <thelerg@ib.cnea.gov.ar>
-
-   instituto balseiro
-   commission nacional de energia atomica
-   universidad nacional de cuyo
-   argentina
-
-   21-feb-2008
-     + changed supported devices string (missused the [] and ())
-
-   13-oct-2007
-     + first try
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include "../comedidev.h"
-
-/* address scheme (page 2.17 of the manual) */
-#define ADQ12B_CTREG		0x00
-#define ADQ12B_CTREG_MSKP	(1 << 7)	/* enable pacer interrupt */
-#define ADQ12B_CTREG_GTP	(1 << 6)	/* enable pacer */
-#define ADQ12B_CTREG_RANGE(x)	((x) << 4)
-#define ADQ12B_CTREG_CHAN(x)	((x) << 0)
-#define ADQ12B_STINR		0x00
-#define ADQ12B_STINR_OUT2	(1 << 7)	/* timer 2 output state */
-#define ADQ12B_STINR_OUTP	(1 << 6)	/* pacer output state */
-#define ADQ12B_STINR_EOC	(1 << 5)	/* A/D end-of-conversion */
-#define ADQ12B_STINR_IN_MASK	(0x1f << 0)
-#define ADQ12B_OUTBR		0x04
-#define ADQ12B_ADLOW		0x08
-#define ADQ12B_ADHIG		0x09
-#define ADQ12B_TIMER_BASE	0x0c
-
-/* available ranges through the PGA gains */
-static const struct comedi_lrange range_adq12b_ai_bipolar = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5)
-	}
-};
-
-static const struct comedi_lrange range_adq12b_ai_unipolar = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1),
-		UNI_RANGE(0.5)
-	}
-};
-
-struct adq12b_private {
-	unsigned int last_ctreg;
-};
-
-static int adq12b_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned char status;
-
-	status = inb(dev->iobase + ADQ12B_STINR);
-	if (status & ADQ12B_STINR_EOC)
-		return 0;
-	return -EBUSY;
-}
-
-static int adq12b_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct adq12b_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int ret;
-	int i;
-
-	/* change channel and range only if it is different from the previous */
-	val = ADQ12B_CTREG_RANGE(range) | ADQ12B_CTREG_CHAN(chan);
-	if (val != devpriv->last_ctreg) {
-		outb(val, dev->iobase + ADQ12B_CTREG);
-		devpriv->last_ctreg = val;
-		udelay(50);	/* wait for the mux to settle */
-	}
-
-	val = inb(dev->iobase + ADQ12B_ADLOW);	/* trigger A/D */
-
-	for (i = 0; i < insn->n; i++) {
-		ret = comedi_timeout(dev, s, insn, adq12b_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		val = inb(dev->iobase + ADQ12B_ADHIG) << 8;
-		val |= inb(dev->iobase + ADQ12B_ADLOW);	/* retriggers A/D */
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int adq12b_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	/* only bits 0-4 have information about digital inputs */
-	data[1] = (inb(dev->iobase + ADQ12B_STINR) & ADQ12B_STINR_IN_MASK);
-
-	return insn->n;
-}
-
-static int adq12b_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int mask;
-	unsigned int chan;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		for (chan = 0; chan < 8; chan++) {
-			if ((mask >> chan) & 0x01) {
-				val = (s->state >> chan) & 0x01;
-				outb((val << 3) | chan,
-				     dev->iobase + ADQ12B_OUTBR);
-			}
-		}
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct adq12b_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	devpriv->last_ctreg = -1;	/* force ctreg update */
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	if (it->options[2]) {
-		s->subdev_flags	= SDF_READABLE | SDF_DIFF;
-		s->n_chan	= 8;
-	} else {
-		s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-		s->n_chan	= 16;
-	}
-	s->maxdata	= 0xfff;
-	s->range_table	= it->options[1] ? &range_adq12b_ai_unipolar
-					 : &range_adq12b_ai_bipolar;
-	s->insn_read	= adq12b_ai_insn_read;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 5;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= adq12b_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= adq12b_do_insn_bits;
-
-	return 0;
-}
-
-static struct comedi_driver adq12b_driver = {
-	.driver_name	= "adq12b",
-	.module		= THIS_MODULE,
-	.attach		= adq12b_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(adq12b_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
deleted file mode 100644
index 0c6aa964c884..000000000000
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ /dev/null
@@ -1,1100 +0,0 @@
-/*
- * comedi/drivers/adv_pci1710.c
- *
- * Author: Michal Dobes <dobes@tesnet.cz>
- *
- * Thanks to ZhenGang Shang <ZhenGang.Shang@Advantech.com.cn>
- * for testing and information.
- *
- *  hardware driver for Advantech cards:
- *   card:   PCI-1710, PCI-1710HG, PCI-1711, PCI-1713, PCI-1720, PCI-1731
- *   driver: pci1710,  pci1710hg,  pci1711,  pci1713,  pci1720,  pci1731
- *
- * Options:
- *  [0] - PCI bus number - if bus number and slot number are 0,
- *                         then driver search for first unused card
- *  [1] - PCI slot number
- *
-*/
-/*
-Driver: adv_pci1710
-Description: Advantech PCI-1710, PCI-1710HG, PCI-1711, PCI-1713,
-	     Advantech PCI-1720, PCI-1731
-Author: Michal Dobes <dobes@tesnet.cz>
-Devices: [Advantech] PCI-1710 (adv_pci1710), PCI-1710HG (pci1710hg),
-  PCI-1711 (adv_pci1710), PCI-1713, PCI-1720,
-  PCI-1731
-Status: works
-
-This driver supports AI, AO, DI and DO subdevices.
-AI subdevice supports cmd and insn interface,
-other subdevices support only insn interface.
-
-The PCI-1710 and PCI-1710HG have the same PCI device ID, so the
-driver cannot distinguish between them, as would be normal for a
-PCI driver.
-
-Configuration options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-	If bus/slot is not specified, the first available PCI
-	device will be used.
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "comedi_8254.h"
-#include "amcc_s5933.h"
-
-#define PCI171x_AD_DATA	 0	/* R:   A/D data */
-#define PCI171x_SOFTTRG	 0	/* W:   soft trigger for A/D */
-#define PCI171x_RANGE	 2	/* W:   A/D gain/range register */
-#define PCI171x_MUX	 4	/* W:   A/D multiplexor control */
-#define PCI171x_STATUS	 6	/* R:   status register */
-#define PCI171x_CONTROL	 6	/* W:   control register */
-#define PCI171x_CLRINT	 8	/* W:   clear interrupts request */
-#define PCI171x_CLRFIFO	 9	/* W:   clear FIFO */
-#define PCI171x_DA1	10	/* W:   D/A register */
-#define PCI171x_DA2	12	/* W:   D/A register */
-#define PCI171x_DAREF	14	/* W:   D/A reference control */
-#define PCI171x_DI	16	/* R:   digi inputs */
-#define PCI171x_DO	16	/* R:   digi inputs */
-
-#define PCI171X_TIMER_BASE	0x18
-
-/* upper bits from status register (PCI171x_STATUS) (lower is same with control
- * reg) */
-#define	Status_FE	0x0100	/* 1=FIFO is empty */
-#define Status_FH	0x0200	/* 1=FIFO is half full */
-#define Status_FF	0x0400	/* 1=FIFO is full, fatal error */
-#define Status_IRQ	0x0800	/* 1=IRQ occurred */
-/* bits from control register (PCI171x_CONTROL) */
-#define Control_CNT0	0x0040	/* 1=CNT0 have external source,
-				 * 0=have internal 100kHz source */
-#define Control_ONEFH	0x0020	/* 1=IRQ on FIFO is half full, 0=every sample */
-#define Control_IRQEN	0x0010	/* 1=enable IRQ */
-#define Control_GATE	0x0008	/* 1=enable external trigger GATE (8254?) */
-#define Control_EXT	0x0004	/* 1=external trigger source */
-#define Control_PACER	0x0002	/* 1=enable internal 8254 trigger source */
-#define Control_SW	0x0001	/* 1=enable software trigger source */
-
-#define PCI1720_DA0	 0	/* W:   D/A register 0 */
-#define PCI1720_DA1	 2	/* W:   D/A register 1 */
-#define PCI1720_DA2	 4	/* W:   D/A register 2 */
-#define PCI1720_DA3	 6	/* W:   D/A register 3 */
-#define PCI1720_RANGE	 8	/* R/W: D/A range register */
-#define PCI1720_SYNCOUT	 9	/* W:   D/A synchronized output register */
-#define PCI1720_SYNCONT	15	/* R/W: D/A synchronized control */
-
-/* D/A synchronized control (PCI1720_SYNCONT) */
-#define Syncont_SC0	 1	/* set synchronous output mode */
-
-static const struct comedi_lrange range_pci1710_3 = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		BIP_RANGE(10),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const char range_codes_pci1710_3[] = { 0x00, 0x01, 0x02, 0x03, 0x04,
-					      0x10, 0x11, 0x12, 0x13 };
-
-static const struct comedi_lrange range_pci1710hg = {
-	12, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.005),
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.01),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01)
-	}
-};
-
-static const char range_codes_pci1710hg[] = { 0x00, 0x01, 0x02, 0x03, 0x04,
-					      0x05, 0x06, 0x07, 0x10, 0x11,
-					      0x12, 0x13 };
-
-static const struct comedi_lrange range_pci17x1 = {
-	5, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const char range_codes_pci17x1[] = { 0x00, 0x01, 0x02, 0x03, 0x04 };
-
-static const struct comedi_lrange pci1720_ao_range = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(10)
-	}
-};
-
-static const struct comedi_lrange pci171x_ao_range = {
-	2, {
-		UNI_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-enum pci1710_boardid {
-	BOARD_PCI1710,
-	BOARD_PCI1710HG,
-	BOARD_PCI1711,
-	BOARD_PCI1713,
-	BOARD_PCI1720,
-	BOARD_PCI1731,
-};
-
-struct boardtype {
-	const char *name;	/*  board name */
-	int n_aichan;		/*  num of A/D chans */
-	const struct comedi_lrange *rangelist_ai;	/*  rangelist for A/D */
-	const char *rangecode_ai;	/*  range codes for programming */
-	unsigned int is_pci1713:1;
-	unsigned int is_pci1720:1;
-	unsigned int has_irq:1;
-	unsigned int has_large_fifo:1;	/* 4K or 1K FIFO */
-	unsigned int has_diff_ai:1;
-	unsigned int has_ao:1;
-	unsigned int has_di_do:1;
-	unsigned int has_counter:1;
-};
-
-static const struct boardtype boardtypes[] = {
-	[BOARD_PCI1710] = {
-		.name		= "pci1710",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci1710_3,
-		.rangecode_ai	= range_codes_pci1710_3,
-		.has_irq	= 1,
-		.has_large_fifo	= 1,
-		.has_diff_ai	= 1,
-		.has_ao		= 1,
-		.has_di_do	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_PCI1710HG] = {
-		.name		= "pci1710hg",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci1710hg,
-		.rangecode_ai	= range_codes_pci1710hg,
-		.has_irq	= 1,
-		.has_large_fifo	= 1,
-		.has_diff_ai	= 1,
-		.has_ao		= 1,
-		.has_di_do	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_PCI1711] = {
-		.name		= "pci1711",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci17x1,
-		.rangecode_ai	= range_codes_pci17x1,
-		.has_irq	= 1,
-		.has_ao		= 1,
-		.has_di_do	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_PCI1713] = {
-		.name		= "pci1713",
-		.n_aichan	= 32,
-		.rangelist_ai	= &range_pci1710_3,
-		.rangecode_ai	= range_codes_pci1710_3,
-		.is_pci1713	= 1,
-		.has_irq	= 1,
-		.has_large_fifo	= 1,
-		.has_diff_ai	= 1,
-	},
-	[BOARD_PCI1720] = {
-		.name		= "pci1720",
-		.is_pci1720	= 1,
-		.has_ao		= 1,
-	},
-	[BOARD_PCI1731] = {
-		.name		= "pci1731",
-		.n_aichan	= 16,
-		.rangelist_ai	= &range_pci17x1,
-		.rangecode_ai	= range_codes_pci17x1,
-		.has_irq	= 1,
-		.has_di_do	= 1,
-	},
-};
-
-struct pci1710_private {
-	unsigned int max_samples;
-	unsigned int CntrlReg;	/*  Control register */
-	unsigned char ai_et;
-	unsigned int ai_et_CntrlReg;
-	unsigned int ai_et_MuxVal;
-	unsigned int act_chanlist[32];	/*  list of scanned channel */
-	unsigned char saved_seglen;	/* len of the non-repeating chanlist */
-	unsigned char da_ranges;	/*  copy of D/A outpit range register */
-};
-
-static int pci171x_ai_check_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	struct pci1710_private *devpriv = dev->private;
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int last_aref = CR_AREF(cmd->chanlist[0]);
-	unsigned int next_chan = (chan0 + 1) % s->n_chan;
-	unsigned int chansegment[32];
-	unsigned int seglen;
-	int i;
-
-	if (cmd->chanlist_len == 1) {
-		devpriv->saved_seglen = cmd->chanlist_len;
-		return 0;
-	}
-
-	/* first channel is always ok */
-	chansegment[0] = cmd->chanlist[0];
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-
-		if (cmd->chanlist[0] == cmd->chanlist[i])
-			break;	/*  we detected a loop, stop */
-
-		if (aref == AREF_DIFF && (chan & 1)) {
-			dev_err(dev->class_dev,
-				"Odd channel cannot be differential input!\n");
-			return -EINVAL;
-		}
-
-		if (last_aref == AREF_DIFF)
-			next_chan = (next_chan + 1) % s->n_chan;
-		if (chan != next_chan) {
-			dev_err(dev->class_dev,
-				"channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
-				i, chan, next_chan, chan0);
-			return -EINVAL;
-		}
-
-		/* next correct channel in list */
-		chansegment[i] = cmd->chanlist[i];
-		last_aref = aref;
-	}
-	seglen = i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		if (cmd->chanlist[i] != chansegment[i % seglen]) {
-			dev_err(dev->class_dev,
-				"bad channel, reference or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
-				i, CR_CHAN(chansegment[i]),
-				CR_RANGE(chansegment[i]),
-				CR_AREF(chansegment[i]),
-				CR_CHAN(cmd->chanlist[i % seglen]),
-				CR_RANGE(cmd->chanlist[i % seglen]),
-				CR_AREF(chansegment[i % seglen]));
-			return -EINVAL;
-		}
-	}
-	devpriv->saved_seglen = seglen;
-
-	return 0;
-}
-
-static void pci171x_ai_setup_chanlist(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      unsigned int *chanlist,
-				      unsigned int n_chan,
-				      unsigned int seglen)
-{
-	const struct boardtype *board = dev->board_ptr;
-	struct pci1710_private *devpriv = dev->private;
-	unsigned int first_chan = CR_CHAN(chanlist[0]);
-	unsigned int last_chan = CR_CHAN(chanlist[seglen - 1]);
-	unsigned int i;
-
-	for (i = 0; i < seglen; i++) {	/*  store range list to card */
-		unsigned int chan = CR_CHAN(chanlist[i]);
-		unsigned int range = CR_RANGE(chanlist[i]);
-		unsigned int aref = CR_AREF(chanlist[i]);
-		unsigned int rangeval;
-
-		rangeval = board->rangecode_ai[range];
-		if (aref == AREF_DIFF)
-			rangeval |= 0x0020;
-
-		/* select channel and set range */
-		outw(chan | (chan << 8), dev->iobase + PCI171x_MUX);
-		outw(rangeval, dev->iobase + PCI171x_RANGE);
-
-		devpriv->act_chanlist[i] = chan;
-	}
-	for ( ; i < n_chan; i++)	/* store remainder of channel list */
-		devpriv->act_chanlist[i] = CR_CHAN(chanlist[i]);
-
-	/* select channel interval to scan */
-	devpriv->ai_et_MuxVal = first_chan | (last_chan << 8);
-	outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX);
-}
-
-static int pci171x_ai_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + PCI171x_STATUS);
-	if ((status & Status_FE) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int pci171x_ai_read_sample(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int cur_chan,
-				  unsigned int *val)
-{
-	const struct boardtype *board = dev->board_ptr;
-	struct pci1710_private *devpriv = dev->private;
-	unsigned int sample;
-	unsigned int chan;
-
-	sample = inw(dev->iobase + PCI171x_AD_DATA);
-	if (!board->is_pci1713) {
-		/*
-		 * The upper 4 bits of the 16-bit sample are the channel number
-		 * that the sample was acquired from. Verify that this channel
-		 * number matches the expected channel number.
-		 */
-		chan = sample >> 12;
-		if (chan != devpriv->act_chanlist[cur_chan]) {
-			dev_err(dev->class_dev,
-				"A/D data droput: received from channel %d, expected %d\n",
-				chan, devpriv->act_chanlist[cur_chan]);
-			return -ENODATA;
-		}
-	}
-	*val = sample & s->maxdata;
-	return 0;
-}
-
-static int pci171x_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct pci1710_private *devpriv = dev->private;
-	int ret = 0;
-	int i;
-
-	devpriv->CntrlReg &= Control_CNT0;
-	devpriv->CntrlReg |= Control_SW;	/*  set software trigger */
-	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-	outb(0, dev->iobase + PCI171x_CLRFIFO);
-	outb(0, dev->iobase + PCI171x_CLRINT);
-
-	pci171x_ai_setup_chanlist(dev, s, &insn->chanspec, 1, 1);
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val;
-
-		outw(0, dev->iobase + PCI171x_SOFTTRG);	/* start conversion */
-
-		ret = comedi_timeout(dev, s, insn, pci171x_ai_eoc, 0);
-		if (ret)
-			break;
-
-		ret = pci171x_ai_read_sample(dev, s, 0, &val);
-		if (ret)
-			break;
-
-		data[i] = val;
-	}
-
-	outb(0, dev->iobase + PCI171x_CLRFIFO);
-	outb(0, dev->iobase + PCI171x_CLRINT);
-
-	return ret ? ret : insn->n;
-}
-
-static int pci171x_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct pci1710_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int reg = chan ? PCI171x_DA2 : PCI171x_DA1;
-	unsigned int val = s->readback[chan];
-	int i;
-
-	devpriv->da_ranges &= ~(1 << (chan << 1));
-	devpriv->da_ranges |= (range << (chan << 1));
-	outw(devpriv->da_ranges, dev->iobase + PCI171x_DAREF);
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, dev->iobase + reg);
-	}
-
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pci171x_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	data[1] = inw(dev->iobase + PCI171x_DI);
-
-	return insn->n;
-}
-
-static int pci171x_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + PCI171x_DO);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pci1720_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct pci1710_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	val = devpriv->da_ranges & (~(0x03 << (chan << 1)));
-	val |= (range << (chan << 1));
-	if (val != devpriv->da_ranges) {
-		outb(val, dev->iobase + PCI1720_RANGE);
-		devpriv->da_ranges = val;
-	}
-
-	val = s->readback[chan];
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, dev->iobase + PCI1720_DA0 + (chan << 1));
-		outb(0, dev->iobase + PCI1720_SYNCOUT);	/* update outputs */
-	}
-
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pci171x_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct pci1710_private *devpriv = dev->private;
-
-	devpriv->CntrlReg &= Control_CNT0;
-	devpriv->CntrlReg |= Control_SW;
-	/* reset any operations */
-	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
-	outb(0, dev->iobase + PCI171x_CLRFIFO);
-	outb(0, dev->iobase + PCI171x_CLRINT);
-
-	return 0;
-}
-
-static void pci1710_handle_every_sample(struct comedi_device *dev,
-					struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int status;
-	unsigned int val;
-	int ret;
-
-	status = inw(dev->iobase + PCI171x_STATUS);
-	if (status & Status_FE) {
-		dev_dbg(dev->class_dev, "A/D FIFO empty (%4x)\n", status);
-		s->async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-	if (status & Status_FF) {
-		dev_dbg(dev->class_dev,
-			"A/D FIFO Full status (Fatal Error!) (%4x)\n", status);
-		s->async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-
-	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear our INT request */
-
-	for (; !(inw(dev->iobase + PCI171x_STATUS) & Status_FE);) {
-		ret = pci171x_ai_read_sample(dev, s, s->async->cur_chan, &val);
-		if (ret) {
-			s->async->events |= COMEDI_CB_ERROR;
-			break;
-		}
-
-		comedi_buf_write_samples(s, &val, 1);
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    s->async->scans_done >= cmd->stop_arg) {
-			s->async->events |= COMEDI_CB_EOA;
-			break;
-		}
-	}
-
-	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear our INT request */
-}
-
-static void pci1710_handle_fifo(struct comedi_device *dev,
-				struct comedi_subdevice *s)
-{
-	struct pci1710_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int status;
-	int i;
-
-	status = inw(dev->iobase + PCI171x_STATUS);
-	if (!(status & Status_FH)) {
-		dev_dbg(dev->class_dev, "A/D FIFO not half full!\n");
-		async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-	if (status & Status_FF) {
-		dev_dbg(dev->class_dev,
-			"A/D FIFO Full status (Fatal Error!)\n");
-		async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-
-	for (i = 0; i < devpriv->max_samples; i++) {
-		unsigned int val;
-		int ret;
-
-		ret = pci171x_ai_read_sample(dev, s, s->async->cur_chan, &val);
-		if (ret) {
-			s->async->events |= COMEDI_CB_ERROR;
-			break;
-		}
-
-		if (!comedi_buf_write_samples(s, &val, 1))
-			break;
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg) {
-			async->events |= COMEDI_CB_EOA;
-			break;
-		}
-	}
-
-	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear our INT request */
-}
-
-static irqreturn_t interrupt_service_pci1710(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct pci1710_private *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	struct comedi_cmd *cmd;
-
-	if (!dev->attached)	/*  is device attached? */
-		return IRQ_NONE;	/*  no, exit */
-
-	s = dev->read_subdev;
-	cmd = &s->async->cmd;
-
-	/*  is this interrupt from our board? */
-	if (!(inw(dev->iobase + PCI171x_STATUS) & Status_IRQ))
-		return IRQ_NONE;	/*  no, exit */
-
-	if (devpriv->ai_et) {	/*  Switch from initial TRIG_EXT to TRIG_xxx. */
-		devpriv->ai_et = 0;
-		devpriv->CntrlReg &= Control_CNT0;
-		devpriv->CntrlReg |= Control_SW; /* set software trigger */
-		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-		devpriv->CntrlReg = devpriv->ai_et_CntrlReg;
-		outb(0, dev->iobase + PCI171x_CLRFIFO);
-		outb(0, dev->iobase + PCI171x_CLRINT);
-		outw(devpriv->ai_et_MuxVal, dev->iobase + PCI171x_MUX);
-		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-		return IRQ_HANDLED;
-	}
-
-	if (cmd->flags & CMDF_WAKE_EOS)
-		pci1710_handle_every_sample(dev, s);
-	else
-		pci1710_handle_fifo(dev, s);
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pci1710_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	pci171x_ai_setup_chanlist(dev, s, cmd->chanlist, cmd->chanlist_len,
-				  devpriv->saved_seglen);
-
-	outb(0, dev->iobase + PCI171x_CLRFIFO);
-	outb(0, dev->iobase + PCI171x_CLRINT);
-
-	devpriv->CntrlReg &= Control_CNT0;
-	if ((cmd->flags & CMDF_WAKE_EOS) == 0)
-		devpriv->CntrlReg |= Control_ONEFH;
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(dev->pacer);
-
-		devpriv->CntrlReg |= Control_PACER | Control_IRQEN;
-		if (cmd->start_src == TRIG_EXT) {
-			devpriv->ai_et_CntrlReg = devpriv->CntrlReg;
-			devpriv->CntrlReg &=
-			    ~(Control_PACER | Control_ONEFH | Control_GATE);
-			devpriv->CntrlReg |= Control_EXT;
-			devpriv->ai_et = 1;
-		} else {	/* TRIG_NOW */
-			devpriv->ai_et = 0;
-		}
-		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-
-		if (cmd->start_src == TRIG_NOW)
-			comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-	} else {	/* TRIG_EXT */
-		devpriv->CntrlReg |= Control_EXT | Control_IRQEN;
-		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-	}
-
-	return 0;
-}
-
-static int pci171x_ai_cmdtest(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* step 2a: make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* step 2b: and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
-	else	/* TRIG_FOLLOW */
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		unsigned int arg = cmd->convert_arg;
-
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list */
-
-	err |= pci171x_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int pci171x_insn_counter_config(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_insn *insn,
-				       unsigned int *data)
-{
-	struct pci1710_private *devpriv = dev->private;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		switch (data[1]) {
-		case 0:	/* internal */
-			devpriv->ai_et_CntrlReg &= ~Control_CNT0;
-			break;
-		case 1:	/* external */
-			devpriv->ai_et_CntrlReg |= Control_CNT0;
-			break;
-		default:
-			return -EINVAL;
-		}
-		outw(devpriv->ai_et_CntrlReg, dev->iobase + PCI171x_CONTROL);
-		break;
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		if (devpriv->ai_et_CntrlReg & Control_CNT0) {
-			data[1] = 1;
-			data[2] = 0;
-		} else {
-			data[1] = 0;
-			data[2] = I8254_OSC_BASE_10MHZ;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int pci171x_reset(struct comedi_device *dev)
-{
-	const struct boardtype *board = dev->board_ptr;
-	struct pci1710_private *devpriv = dev->private;
-
-	/* Software trigger, CNT0=external */
-	devpriv->CntrlReg = Control_SW | Control_CNT0;
-	/* reset any operations */
-	outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
-	outb(0, dev->iobase + PCI171x_CLRFIFO);	/*  clear FIFO */
-	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear INT request */
-	devpriv->da_ranges = 0;
-	if (board->has_ao) {
-		/* set DACs to 0..5V */
-		outb(devpriv->da_ranges, dev->iobase + PCI171x_DAREF);
-		outw(0, dev->iobase + PCI171x_DA1); /* set DA outputs to 0V */
-		outw(0, dev->iobase + PCI171x_DA2);
-	}
-	outw(0, dev->iobase + PCI171x_DO);	/*  digital outputs to 0 */
-	outb(0, dev->iobase + PCI171x_CLRFIFO);	/*  clear FIFO */
-	outb(0, dev->iobase + PCI171x_CLRINT);	/*  clear INT request */
-
-	return 0;
-}
-
-static int pci1720_reset(struct comedi_device *dev)
-{
-	struct pci1710_private *devpriv = dev->private;
-	/* set synchronous output mode */
-	outb(Syncont_SC0, dev->iobase + PCI1720_SYNCONT);
-	devpriv->da_ranges = 0xAA;
-	/* set all ranges to +/-5V */
-	outb(devpriv->da_ranges, dev->iobase + PCI1720_RANGE);
-	outw(0x0800, dev->iobase + PCI1720_DA0);	/*  set outputs to 0V */
-	outw(0x0800, dev->iobase + PCI1720_DA1);
-	outw(0x0800, dev->iobase + PCI1720_DA2);
-	outw(0x0800, dev->iobase + PCI1720_DA3);
-	outb(0, dev->iobase + PCI1720_SYNCOUT);	/*  update outputs */
-
-	return 0;
-}
-
-static int pci1710_reset(struct comedi_device *dev)
-{
-	const struct boardtype *board = dev->board_ptr;
-
-	if (board->is_pci1720)
-		return pci1720_reset(dev);
-
-	return pci171x_reset(dev);
-}
-
-static int pci1710_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct boardtype *board = NULL;
-	struct pci1710_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret, subdev, n_subdevices;
-
-	if (context < ARRAY_SIZE(boardtypes))
-		board = &boardtypes[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 2);
-
-	dev->pacer = comedi_8254_init(dev->iobase + PCI171X_TIMER_BASE,
-				      I8254_OSC_BASE_10MHZ, I8254_IO16, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	n_subdevices = 0;
-	if (board->n_aichan)
-		n_subdevices++;
-	if (board->has_ao)
-		n_subdevices++;
-	if (board->has_di_do)
-		n_subdevices += 2;
-	if (board->has_counter)
-		n_subdevices++;
-
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
-	if (ret)
-		return ret;
-
-	pci1710_reset(dev);
-
-	if (board->has_irq && pcidev->irq) {
-		ret = request_irq(pcidev->irq, interrupt_service_pci1710,
-				  IRQF_SHARED, dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	subdev = 0;
-
-	if (board->n_aichan) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_AI;
-		s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND;
-		if (board->has_diff_ai)
-			s->subdev_flags	|= SDF_DIFF;
-		s->n_chan	= board->n_aichan;
-		s->maxdata	= 0x0fff;
-		s->range_table	= board->rangelist_ai;
-		s->insn_read	= pci171x_ai_insn_read;
-		if (dev->irq) {
-			dev->read_subdev = s;
-			s->subdev_flags	|= SDF_CMD_READ;
-			s->len_chanlist	= s->n_chan;
-			s->do_cmdtest	= pci171x_ai_cmdtest;
-			s->do_cmd	= pci171x_ai_cmd;
-			s->cancel	= pci171x_ai_cancel;
-		}
-		subdev++;
-	}
-
-	if (board->has_ao) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-		s->maxdata	= 0x0fff;
-		if (board->is_pci1720) {
-			s->n_chan	= 4;
-			s->range_table	= &pci1720_ao_range;
-			s->insn_write	= pci1720_ao_insn_write;
-		} else {
-			s->n_chan	= 2;
-			s->range_table	= &pci171x_ao_range;
-			s->insn_write	= pci171x_ao_insn_write;
-		}
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		/* initialize the readback values to match the board reset */
-		if (board->is_pci1720) {
-			int i;
-
-			for (i = 0; i < s->n_chan; i++)
-				s->readback[i] = 0x0800;
-		}
-
-		subdev++;
-	}
-
-	if (board->has_di_do) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= 16;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pci171x_di_insn_bits;
-		subdev++;
-
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= 16;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pci171x_do_insn_bits;
-		subdev++;
-	}
-
-	/* Counter subdevice (8254) */
-	if (board->has_counter) {
-		s = &dev->subdevices[subdev];
-		comedi_8254_subdevice_init(s, dev->pacer);
-
-		dev->pacer->insn_config = pci171x_insn_counter_config;
-
-		/* counters 1 and 2 are used internally for the pacer */
-		comedi_8254_set_busy(dev->pacer, 1, true);
-		comedi_8254_set_busy(dev->pacer, 2, true);
-
-		subdev++;
-	}
-
-	/* max_samples is half the FIFO size (2 bytes/sample) */
-	devpriv->max_samples = (board->has_large_fifo) ? 2048 : 512;
-
-	return 0;
-}
-
-static void pci1710_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		pci1710_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver adv_pci1710_driver = {
-	.driver_name	= "adv_pci1710",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci1710_auto_attach,
-	.detach		= pci1710_detach,
-};
-
-static int adv_pci1710_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adv_pci1710_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id adv_pci1710_pci_table[] = {
-	{
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050),
-		.driver_data = BOARD_PCI1710,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0x0000),
-		.driver_data = BOARD_PCI1710,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xb100),
-		.driver_data = BOARD_PCI1710,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xb200),
-		.driver_data = BOARD_PCI1710,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xc100),
-		.driver_data = BOARD_PCI1710,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xc200),
-		.driver_data = BOARD_PCI1710,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710, 0x1000, 0xd100),
-		.driver_data = BOARD_PCI1710,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0x0002),
-		.driver_data = BOARD_PCI1710HG,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xb102),
-		.driver_data = BOARD_PCI1710HG,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xb202),
-		.driver_data = BOARD_PCI1710HG,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xc102),
-		.driver_data = BOARD_PCI1710HG,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710,
-			       PCI_VENDOR_ID_ADVANTECH, 0xc202),
-		.driver_data = BOARD_PCI1710HG,
-	}, {
-		PCI_DEVICE_SUB(PCI_VENDOR_ID_ADVANTECH, 0x1710, 0x1000, 0xd102),
-		.driver_data = BOARD_PCI1710HG,
-	},
-	{ PCI_VDEVICE(ADVANTECH, 0x1711), BOARD_PCI1711 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1713), BOARD_PCI1713 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1720), BOARD_PCI1720 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1731), BOARD_PCI1731 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adv_pci1710_pci_table);
-
-static struct pci_driver adv_pci1710_pci_driver = {
-	.name		= "adv_pci1710",
-	.id_table	= adv_pci1710_pci_table,
-	.probe		= adv_pci1710_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adv_pci1710_driver, adv_pci1710_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi: Advantech PCI-1710 Series Multifunction DAS Cards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
deleted file mode 100644
index 1921a97cc5ca..000000000000
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * adv_pci1723.c
- * Comedi driver for the Advantech PCI-1723 card.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: adv_pci1723
- * Description: Advantech PCI-1723
- * Author: yonggang <rsmgnu@gmail.com>, Ian Abbott <abbotti@mev.co.uk>
- * Devices: [Advantech] PCI-1723 (adv_pci1723)
- * Updated: Mon, 14 Apr 2008 15:12:56 +0100
- * Status: works
- *
- * Configuration Options: not applicable, uses comedi PCI auto config
- *
- * Subdevice 0 is 8-channel AO, 16-bit, range +/- 10 V.
- *
- * Subdevice 1 is 16-channel DIO.  The channels are configurable as
- * input or output in 2 groups (0 to 7, 8 to 15). Configuring any
- * channel implicitly configures all channels in the same group.
- *
- * TODO:
- * 1. Add the two milliamp ranges to the AO subdevice (0 to 20 mA,
- *    4 to 20 mA).
- * 2. Read the initial ranges and values of the AO subdevice at
- *    start-up instead of reinitializing them.
- * 3. Implement calibration.
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-/*
- * PCI Bar 2 I/O Register map (dev->iobase)
- */
-#define PCI1723_AO_REG(x)		(0x00 + ((x) * 2))
-#define PCI1723_BOARD_ID_REG		0x10
-#define PCI1723_BOARD_ID_MASK		(0xf << 0)
-#define PCI1723_SYNC_CTRL_REG		0x12
-#define PCI1723_SYNC_CTRL_ASYNC		(0 << 0)
-#define PCI1723_SYNC_CTRL_SYNC		(1 << 0)
-#define PCI1723_CTRL_REG		0x14
-#define PCI1723_CTRL_BUSY		(1 << 15)
-#define PCI1723_CTRL_INIT		(1 << 14)
-#define PCI1723_CTRL_SELF		(1 << 8)
-#define PCI1723_CTRL_IDX(x)		(((x) & 0x3) << 6)
-#define PCI1723_CTRL_RANGE(x)		(((x) & 0x3) << 4)
-#define PCI1723_CTRL_GAIN		(0 << 3)
-#define PCI1723_CTRL_OFFSET		(1 << 3)
-#define PCI1723_CTRL_CHAN(x)		(((x) & 0x7) << 0)
-#define PCI1723_CALIB_CTRL_REG		0x16
-#define PCI1723_CALIB_CTRL_CS		(1 << 2)
-#define PCI1723_CALIB_CTRL_DAT		(1 << 1)
-#define PCI1723_CALIB_CTRL_CLK		(1 << 0)
-#define PCI1723_CALIB_STROBE_REG	0x18
-#define PCI1723_DIO_CTRL_REG		0x1a
-#define PCI1723_DIO_CTRL_HDIO		(1 << 1)
-#define PCI1723_DIO_CTRL_LDIO		(1 << 0)
-#define PCI1723_DIO_DATA_REG		0x1c
-#define PCI1723_CALIB_DATA_REG		0x1e
-#define PCI1723_SYNC_STROBE_REG		0x20
-#define PCI1723_RESET_AO_STROBE_REG	0x22
-#define PCI1723_RESET_CALIB_STROBE_REG	0x24
-#define PCI1723_RANGE_STROBE_REG	0x26
-#define PCI1723_VREF_REG		0x28
-#define PCI1723_VREF_NEG10V		(0 << 0)
-#define PCI1723_VREF_0V			(1 << 0)
-#define PCI1723_VREF_POS10V		(3 << 0)
-
-static int pci1723_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		outw(val, dev->iobase + PCI1723_AO_REG(chan));
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int pci1723_dio_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask = (chan < 8) ? 0x00ff : 0xff00;
-	unsigned short mode = 0x0000;		/* assume output */
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	if (!(s->io_bits & 0x00ff))
-		mode |= PCI1723_DIO_CTRL_LDIO;	/* low byte input */
-	if (!(s->io_bits & 0xff00))
-		mode |= PCI1723_DIO_CTRL_HDIO;	/* high byte input */
-	outw(mode, dev->iobase + PCI1723_DIO_CTRL_REG);
-
-	return insn->n;
-}
-
-static int pci1723_dio_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + PCI1723_DIO_DATA_REG);
-
-	data[1] = inw(dev->iobase + PCI1723_DIO_DATA_REG);
-
-	return insn->n;
-}
-
-static int pci1723_auto_attach(struct comedi_device *dev,
-			       unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	unsigned int val;
-	int ret;
-	int i;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 2);
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-	s->n_chan	= 8;
-	s->maxdata	= 0xffff;
-	s->range_table	= &range_bipolar10;
-	s->insn_write	= pci1723_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* synchronously reset all analog outputs to 0V, +/-10V range */
-	outw(PCI1723_SYNC_CTRL_SYNC, dev->iobase + PCI1723_SYNC_CTRL_REG);
-	for (i = 0; i < s->n_chan; i++) {
-		outw(PCI1723_CTRL_RANGE(0) | PCI1723_CTRL_CHAN(i),
-		     PCI1723_CTRL_REG);
-		outw(0, dev->iobase + PCI1723_RANGE_STROBE_REG);
-
-		outw(0x8000, dev->iobase + PCI1723_AO_REG(i));
-		s->readback[i] = 0x8000;
-	}
-	outw(0, dev->iobase + PCI1723_SYNC_STROBE_REG);
-
-	/* disable syncronous control */
-	outw(PCI1723_SYNC_CTRL_ASYNC, dev->iobase + PCI1723_SYNC_CTRL_REG);
-
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_config	= pci1723_dio_insn_config;
-	s->insn_bits	= pci1723_dio_insn_bits;
-
-	/* get initial DIO direction and state */
-	val = inw(dev->iobase + PCI1723_DIO_CTRL_REG);
-	if (!(val & PCI1723_DIO_CTRL_LDIO))
-		s->io_bits |= 0x00ff;	/* low byte output */
-	if (!(val & PCI1723_DIO_CTRL_HDIO))
-		s->io_bits |= 0xff00;	/* high byte output */
-	s->state = inw(dev->iobase + PCI1723_DIO_DATA_REG);
-
-	return 0;
-}
-
-static struct comedi_driver adv_pci1723_driver = {
-	.driver_name	= "adv_pci1723",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci1723_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int adv_pci1723_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adv_pci1723_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id adv_pci1723_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1723) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adv_pci1723_pci_table);
-
-static struct pci_driver adv_pci1723_pci_driver = {
-	.name		= "adv_pci1723",
-	.id_table	= adv_pci1723_pci_table,
-	.probe		= adv_pci1723_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adv_pci1723_driver, adv_pci1723_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Advantech PCI-1723 Comedi driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adv_pci1724.c b/drivers/staging/comedi/drivers/adv_pci1724.c
deleted file mode 100644
index 9677111f9ab2..000000000000
--- a/drivers/staging/comedi/drivers/adv_pci1724.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * adv_pci1724.c
- * Comedi driver for the Advantech PCI-1724U card.
- *
- * Author:  Frank Mori Hess <fmh6jj@gmail.com>
- * Copyright (C) 2013 GnuBIO Inc
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: adv_pci1724
- * Description: Advantech PCI-1724U
- * Devices: [Advantech] PCI-1724U (adv_pci1724)
- * Author: Frank Mori Hess <fmh6jj@gmail.com>
- * Updated: 2013-02-09
- * Status: works
- *
- * Configuration Options: not applicable, uses comedi PCI auto config
- *
- * Subdevice 0 is the analog output.
- * Subdevice 1 is the offset calibration for the analog output.
- * Subdevice 2 is the gain calibration for the analog output.
- *
- * The calibration offset and gains have quite a large effect on the
- * analog output, so it is possible to adjust the analog output to
- * have an output range significantly different from the board's
- * nominal output ranges. For a calibrated +/-10V range, the analog
- * output's offset will be set somewhere near mid-range (0x2000) and
- * its gain will be near maximum (0x3fff).
- *
- * There is really no difference between the board's documented 0-20mA
- * versus 4-20mA output ranges. To pick one or the other is simply a
- * matter of adjusting the offset and gain calibration until the board
- * outputs in the desired range.
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-/*
- * PCI bar 2 Register I/O map (dev->iobase)
- */
-#define PCI1724_DAC_CTRL_REG		0x00
-#define PCI1724_DAC_CTRL_GX(x)		(1 << (20 + ((x) / 8)))
-#define PCI1724_DAC_CTRL_CX(x)		(((x) % 8) << 16)
-#define PCI1724_DAC_CTRL_MODE_GAIN	(1 << 14)
-#define PCI1724_DAC_CTRL_MODE_OFFSET	(2 << 14)
-#define PCI1724_DAC_CTRL_MODE_NORMAL	(3 << 14)
-#define PCI1724_DAC_CTRL_MODE_MASK	(3 << 14)
-#define PCI1724_DAC_CTRL_DATA(x)	(((x) & 0x3fff) << 0)
-#define PCI1724_SYNC_CTRL_REG		0x04
-#define PCI1724_SYNC_CTRL_DACSTAT	(1 << 1)
-#define PCI1724_SYNC_CTRL_SYN		(1 << 0)
-#define PCI1724_EEPROM_CTRL_REG		0x08
-#define PCI1724_SYNC_TRIG_REG		0x0c  /* any value works */
-#define PCI1724_BOARD_ID_REG		0x10
-#define PCI1724_BOARD_ID_MASK		(0xf << 0)
-
-static const struct comedi_lrange adv_pci1724_ao_ranges = {
-	4, {
-		BIP_RANGE(10),
-		RANGE_mA(0, 20),
-		RANGE_mA(4, 20),
-		RANGE_unitless(0, 1)
-	}
-};
-
-static int adv_pci1724_dac_idle(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned long context)
-{
-	unsigned int status;
-
-	status = inl(dev->iobase + PCI1724_SYNC_CTRL_REG);
-	if ((status & PCI1724_SYNC_CTRL_DACSTAT) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int adv_pci1724_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned long mode = (unsigned long)s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int ctrl;
-	int ret;
-	int i;
-
-	ctrl = PCI1724_DAC_CTRL_GX(chan) | PCI1724_DAC_CTRL_CX(chan) | mode;
-
-	/* turn off synchronous mode */
-	outl(0, dev->iobase + PCI1724_SYNC_CTRL_REG);
-
-	for (i = 0; i < insn->n; ++i) {
-		unsigned int val = data[i];
-
-		ret = comedi_timeout(dev, s, insn, adv_pci1724_dac_idle, 0);
-		if (ret)
-			return ret;
-
-		outl(ctrl | PCI1724_DAC_CTRL_DATA(val),
-		     dev->iobase + PCI1724_DAC_CTRL_REG);
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int adv_pci1724_auto_attach(struct comedi_device *dev,
-				   unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	unsigned int board_id;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->iobase = pci_resource_start(pcidev, 2);
-	board_id = inl(dev->iobase + PCI1724_BOARD_ID_REG);
-	dev_info(dev->class_dev, "board id: %d\n",
-		 board_id & PCI1724_BOARD_ID_MASK);
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_GROUND;
-	s->n_chan	= 32;
-	s->maxdata	= 0x3fff;
-	s->range_table	= &adv_pci1724_ao_ranges;
-	s->insn_write	= adv_pci1724_insn_write;
-	s->private	= (void *)PCI1724_DAC_CTRL_MODE_NORMAL;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Offset Calibration subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_CALIB;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan	= 32;
-	s->maxdata	= 0x3fff;
-	s->insn_write	= adv_pci1724_insn_write;
-	s->private	= (void *)PCI1724_DAC_CTRL_MODE_OFFSET;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Gain Calibration subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_CALIB;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan	= 32;
-	s->maxdata	= 0x3fff;
-	s->insn_write	= adv_pci1724_insn_write;
-	s->private	= (void *)PCI1724_DAC_CTRL_MODE_GAIN;
-
-	return comedi_alloc_subdev_readback(s);
-}
-
-static struct comedi_driver adv_pci1724_driver = {
-	.driver_name	= "adv_pci1724",
-	.module		= THIS_MODULE,
-	.auto_attach	= adv_pci1724_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int adv_pci1724_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &adv_pci1724_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id adv_pci1724_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ADVANTECH, 0x1724) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adv_pci1724_pci_table);
-
-static struct pci_driver adv_pci1724_pci_driver = {
-	.name		= "adv_pci1724",
-	.id_table	= adv_pci1724_pci_table,
-	.probe		= adv_pci1724_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adv_pci1724_driver, adv_pci1724_pci_driver);
-
-MODULE_AUTHOR("Frank Mori Hess <fmh6jj@gmail.com>");
-MODULE_DESCRIPTION("Advantech PCI-1724U Comedi driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
deleted file mode 100644
index f1b3c5aa8d79..000000000000
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ /dev/null
@@ -1,1113 +0,0 @@
-/*
- * comedi/drivers/adv_pci_dio.c
- *
- * Author: Michal Dobes <dobes@tesnet.cz>
- *
- *  Hardware driver for Advantech PCI DIO cards.
-*/
-/*
-Driver: adv_pci_dio
-Description: Advantech PCI-1730, PCI-1733, PCI-1734, PCI-1735U,
-	PCI-1736UP, PCI-1739U, PCI-1750, PCI-1751, PCI-1752,
-	PCI-1753/E, PCI-1754, PCI-1756, PCI-1760, PCI-1762
-Author: Michal Dobes <dobes@tesnet.cz>
-Devices: [Advantech] PCI-1730 (adv_pci_dio), PCI-1733,
-  PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U, PCI-1750,
-  PCI-1751, PCI-1752, PCI-1753,
-  PCI-1753+PCI-1753E, PCI-1754, PCI-1756,
-  PCI-1760, PCI-1762
-Status: untested
-Updated: Mon, 09 Jan 2012 12:40:46 +0000
-
-This driver supports now only insn interface for DI/DO/DIO.
-
-Configuration options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-	If bus/slot is not specified, the first available PCI
-	device will be used.
-
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include "../comedi_pci.h"
-
-#include "8255.h"
-#include "comedi_8254.h"
-
-/* hardware types of the cards */
-enum hw_cards_id {
-	TYPE_PCI1730, TYPE_PCI1733, TYPE_PCI1734, TYPE_PCI1735, TYPE_PCI1736,
-	TYPE_PCI1739,
-	TYPE_PCI1750,
-	TYPE_PCI1751,
-	TYPE_PCI1752,
-	TYPE_PCI1753, TYPE_PCI1753E,
-	TYPE_PCI1754, TYPE_PCI1756,
-	TYPE_PCI1760,
-	TYPE_PCI1762
-};
-
-/* which I/O instructions to use */
-enum hw_io_access {
-	IO_8b, IO_16b
-};
-
-#define MAX_DI_SUBDEVS	2	/* max number of DI subdevices per card */
-#define MAX_DO_SUBDEVS	2	/* max number of DO subdevices per card */
-#define MAX_DIO_SUBDEVG	2	/* max number of DIO subdevices group per
-				 * card */
-
-#define PCIDIO_MAINREG	   2	/* main I/O region for all Advantech cards? */
-
-/* Register offset definitions */
-/*  Advantech PCI-1730/3/4 */
-#define PCI1730_IDI	   0	/* R:   Isolated digital input  0-15 */
-#define PCI1730_IDO	   0	/* W:   Isolated digital output 0-15 */
-#define PCI1730_DI	   2	/* R:   Digital input  0-15 */
-#define PCI1730_DO	   2	/* W:   Digital output 0-15 */
-#define PCI1733_IDI	   0	/* R:   Isolated digital input  0-31 */
-#define	PCI1730_3_INT_EN	0x08	/* R/W: enable/disable interrupts */
-#define	PCI1730_3_INT_RF	0x0c	/* R/W: set falling/raising edge for
-					 * interrupts */
-#define	PCI1730_3_INT_CLR	0x10	/* R/W: clear interrupts */
-#define PCI1734_IDO	   0	/* W:   Isolated digital output 0-31 */
-#define PCI173x_BOARDID	   4	/* R:   Board I/D switch for 1730/3/4 */
-
-/* Advantech PCI-1735U */
-#define PCI1735_DI	   0	/* R:   Digital input  0-31 */
-#define PCI1735_DO	   0	/* W:   Digital output 0-31 */
-#define PCI1735_C8254	   4	/* R/W: 8254 counter */
-#define PCI1735_BOARDID	   8    /* R:   Board I/D switch for 1735U */
-
-/*  Advantech PCI-1736UP */
-#define PCI1736_IDI        0	/* R:   Isolated digital input  0-15 */
-#define PCI1736_IDO        0	/* W:   Isolated digital output 0-15 */
-#define PCI1736_3_INT_EN        0x08	/* R/W: enable/disable interrupts */
-#define PCI1736_3_INT_RF        0x0c	/* R/W: set falling/raising edge for
-					 * interrupts */
-#define PCI1736_3_INT_CLR       0x10	/* R/W: clear interrupts */
-#define PCI1736_BOARDID    4	/* R:   Board I/D switch for 1736UP */
-#define PCI1736_MAINREG    0	/* Normal register (2) doesn't work */
-
-/* Advantech PCI-1739U */
-#define PCI1739_DIO	   0	/* R/W: begin of 8255 registers block */
-#define PCI1739_ICR	  32	/* W:   Interrupt control register */
-#define PCI1739_ISR	  32	/* R:   Interrupt status register */
-#define PCI1739_BOARDID	   8    /* R:   Board I/D switch for 1739U */
-
-/*  Advantech PCI-1750 */
-#define PCI1750_IDI	   0	/* R:   Isolated digital input  0-15 */
-#define PCI1750_IDO	   0	/* W:   Isolated digital output 0-15 */
-#define PCI1750_ICR	  32	/* W:   Interrupt control register */
-#define PCI1750_ISR	  32	/* R:   Interrupt status register */
-
-/*  Advantech PCI-1751/3/3E */
-#define PCI1751_DIO	   0	/* R/W: begin of 8255 registers block */
-#define PCI1751_CNT	  24	/* R/W: begin of 8254 registers block */
-#define PCI1751_ICR	  32	/* W:   Interrupt control register */
-#define PCI1751_ISR	  32	/* R:   Interrupt status register */
-#define PCI1753_DIO	   0	/* R/W: begin of 8255 registers block */
-#define PCI1753_ICR0	  16	/* R/W: Interrupt control register group 0 */
-#define PCI1753_ICR1	  17	/* R/W: Interrupt control register group 1 */
-#define PCI1753_ICR2	  18	/* R/W: Interrupt control register group 2 */
-#define PCI1753_ICR3	  19	/* R/W: Interrupt control register group 3 */
-#define PCI1753E_DIO	  32	/* R/W: begin of 8255 registers block */
-#define PCI1753E_ICR0	  48	/* R/W: Interrupt control register group 0 */
-#define PCI1753E_ICR1	  49	/* R/W: Interrupt control register group 1 */
-#define PCI1753E_ICR2	  50	/* R/W: Interrupt control register group 2 */
-#define PCI1753E_ICR3	  51	/* R/W: Interrupt control register group 3 */
-
-/*  Advantech PCI-1752/4/6 */
-#define PCI1752_IDO	   0	/* R/W: Digital output  0-31 */
-#define PCI1752_IDO2	   4	/* R/W: Digital output 32-63 */
-#define PCI1754_IDI	   0	/* R:   Digital input   0-31 */
-#define PCI1754_IDI2	   4	/* R:   Digital input  32-64 */
-#define PCI1756_IDI	   0	/* R:   Digital input   0-31 */
-#define PCI1756_IDO	   4	/* R/W: Digital output  0-31 */
-#define PCI1754_6_ICR0	0x08	/* R/W: Interrupt control register group 0 */
-#define PCI1754_6_ICR1	0x0a	/* R/W: Interrupt control register group 1 */
-#define PCI1754_ICR2	0x0c	/* R/W: Interrupt control register group 2 */
-#define PCI1754_ICR3	0x0e	/* R/W: Interrupt control register group 3 */
-#define PCI1752_6_CFC	0x12	/* R/W: set/read channel freeze function */
-#define PCI175x_BOARDID	0x10	/* R:   Board I/D switch for 1752/4/6 */
-
-/*  Advantech PCI-1762 registers */
-#define PCI1762_RO	   0	/* R/W: Relays status/output */
-#define PCI1762_IDI	   2	/* R:   Isolated input status */
-#define PCI1762_BOARDID	   4	/* R:   Board I/D switch */
-#define PCI1762_ICR	   6	/* W:   Interrupt control register */
-#define PCI1762_ISR	   6	/* R:   Interrupt status register */
-
-/*  Advantech PCI-1760 registers */
-#define OMB0		0x0c	/* W:   Mailbox outgoing registers */
-#define OMB1		0x0d
-#define OMB2		0x0e
-#define OMB3		0x0f
-#define IMB0		0x1c	/* R:   Mailbox incoming registers */
-#define IMB1		0x1d
-#define IMB2		0x1e
-#define IMB3		0x1f
-#define INTCSR0		0x38	/* R/W: Interrupt control registers */
-#define INTCSR1		0x39
-#define INTCSR2		0x3a
-#define INTCSR3		0x3b
-
-/*  PCI-1760 mailbox commands */
-#define CMD_ClearIMB2		0x00	/* Clear IMB2 status and return actual
-					 * DI status in IMB3 */
-#define CMD_SetRelaysOutput	0x01	/* Set relay output from OMB0 */
-#define CMD_GetRelaysStatus	0x02	/* Get relay status to IMB0 */
-#define CMD_ReadCurrentStatus	0x07	/* Read the current status of the
-					 * register in OMB0, result in IMB0 */
-#define CMD_ReadFirmwareVersion	0x0e	/* Read the firmware ver., result in
-					 * IMB1.IMB0 */
-#define CMD_ReadHardwareVersion	0x0f	/* Read the hardware ver., result in
-					 * IMB1.IMB0 */
-#define CMD_EnableIDIFilters	0x20	/* Enable IDI filters based on bits in
-					 * OMB0 */
-#define CMD_EnableIDIPatternMatch 0x21	/* Enable IDI pattern match based on
-					 * bits in OMB0 */
-#define CMD_SetIDIPatternMatch	0x22	/* Enable IDI pattern match based on
-					 * bits in OMB0 */
-#define CMD_EnableIDICounters	0x28	/* Enable IDI counters based on bits in
-					 * OMB0 */
-#define CMD_ResetIDICounters	0x29	/* Reset IDI counters based on bits in
-					 * OMB0 to its reset values */
-#define CMD_OverflowIDICounters	0x2a	/* Enable IDI counters overflow
-					 * interrupts  based on bits in OMB0 */
-#define CMD_MatchIntIDICounters	0x2b	/* Enable IDI counters match value
-					 * interrupts  based on bits in OMB0 */
-#define CMD_EdgeIDICounters	0x2c	/* Set IDI up counters count edge (bit=0
-					 * - rising, =1 - falling) */
-#define CMD_GetIDICntCurValue	0x2f	/* Read IDI{OMB0} up counter current
-					 * value */
-#define CMD_SetIDI0CntResetValue 0x40	/* Set IDI0 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI1CntResetValue 0x41	/* Set IDI1 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI2CntResetValue 0x42	/* Set IDI2 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI3CntResetValue 0x43	/* Set IDI3 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI4CntResetValue 0x44	/* Set IDI4 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI5CntResetValue 0x45	/* Set IDI5 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI6CntResetValue 0x46	/* Set IDI6 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI7CntResetValue 0x47	/* Set IDI7 Counter Reset Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI0CntMatchValue 0x48	/* Set IDI0 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI1CntMatchValue 0x49	/* Set IDI1 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI2CntMatchValue 0x4a	/* Set IDI2 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI3CntMatchValue 0x4b	/* Set IDI3 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI4CntMatchValue 0x4c	/* Set IDI4 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI5CntMatchValue 0x4d	/* Set IDI5 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI6CntMatchValue 0x4e	/* Set IDI6 Counter Match Value
-					 * 256*OMB1+OMB0 */
-#define CMD_SetIDI7CntMatchValue 0x4f	/* Set IDI7 Counter Match Value
-					 * 256*OMB1+OMB0 */
-
-#define OMBCMD_RETRY	0x03	/* 3 times try request before error */
-
-struct diosubd_data {
-	int chans;		/*  num of chans */
-	int addr;		/*  PCI address ofset */
-	int regs;		/*  number of registers to read or 8255
-				    subdevices */
-	unsigned int specflags;	/*  addon subdevice flags */
-};
-
-struct dio_boardtype {
-	const char *name;	/*  board name */
-	int main_pci_region;	/*  main I/O PCI region */
-	enum hw_cards_id cardtype;
-	int nsubdevs;
-	struct diosubd_data sdi[MAX_DI_SUBDEVS];	/*  DI chans */
-	struct diosubd_data sdo[MAX_DO_SUBDEVS];	/*  DO chans */
-	struct diosubd_data sdio[MAX_DIO_SUBDEVG];	/*  DIO 8255 chans */
-	struct diosubd_data boardid;	/*  card supports board ID switch */
-	unsigned long timer_regbase;
-	enum hw_io_access io_access;
-};
-
-static const struct dio_boardtype boardtypes[] = {
-	[TYPE_PCI1730] = {
-		.name		= "pci1730",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1730,
-		.nsubdevs	= 5,
-		.sdi[0]		= { 16, PCI1730_DI, 2, 0, },
-		.sdi[1]		= { 16, PCI1730_IDI, 2, 0, },
-		.sdo[0]		= { 16, PCI1730_DO, 2, 0, },
-		.sdo[1]		= { 16, PCI1730_IDO, 2, 0, },
-		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1733] = {
-		.name		= "pci1733",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1733,
-		.nsubdevs	= 2,
-		.sdi[1]		= { 32, PCI1733_IDI, 4, 0, },
-		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1734] = {
-		.name		= "pci1734",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1734,
-		.nsubdevs	= 2,
-		.sdo[1]		= { 32, PCI1734_IDO, 4, 0, },
-		.boardid	= { 4, PCI173x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1735] = {
-		.name		= "pci1735",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1735,
-		.nsubdevs	= 4,
-		.sdi[0]		= { 32, PCI1735_DI, 4, 0, },
-		.sdo[0]		= { 32, PCI1735_DO, 4, 0, },
-		.boardid	= { 4, PCI1735_BOARDID, 1, SDF_INTERNAL, },
-		.timer_regbase	= PCI1735_C8254,
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1736] = {
-		.name		= "pci1736",
-		.main_pci_region = PCI1736_MAINREG,
-		.cardtype	= TYPE_PCI1736,
-		.nsubdevs	= 3,
-		.sdi[1]		= { 16, PCI1736_IDI, 2, 0, },
-		.sdo[1]		= { 16, PCI1736_IDO, 2, 0, },
-		.boardid	= { 4, PCI1736_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1739] = {
-		.name		= "pci1739",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1739,
-		.nsubdevs	= 2,
-		.sdio[0]	= { 48, PCI1739_DIO, 2, 0, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1750] = {
-		.name		= "pci1750",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1750,
-		.nsubdevs	= 2,
-		.sdi[1]		= { 16, PCI1750_IDI, 2, 0, },
-		.sdo[1]		= { 16, PCI1750_IDO, 2, 0, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1751] = {
-		.name		= "pci1751",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1751,
-		.nsubdevs	= 3,
-		.sdio[0]	= { 48, PCI1751_DIO, 2, 0, },
-		.timer_regbase	= PCI1751_CNT,
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1752] = {
-		.name		= "pci1752",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1752,
-		.nsubdevs	= 3,
-		.sdo[0]		= { 32, PCI1752_IDO, 2, 0, },
-		.sdo[1]		= { 32, PCI1752_IDO2, 2, 0, },
-		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
-	},
-	[TYPE_PCI1753] = {
-		.name		= "pci1753",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1753,
-		.nsubdevs	= 4,
-		.sdio[0]	= { 96, PCI1753_DIO, 4, 0, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1753E] = {
-		.name		= "pci1753e",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1753E,
-		.nsubdevs	= 8,
-		.sdio[0]	= { 96, PCI1753_DIO, 4, 0, },
-		.sdio[1]	= { 96, PCI1753E_DIO, 4, 0, },
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1754] = {
-		.name		= "pci1754",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1754,
-		.nsubdevs	= 3,
-		.sdi[0]		= { 32, PCI1754_IDI, 2, 0, },
-		.sdi[1]		= { 32, PCI1754_IDI2, 2, 0, },
-		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
-	},
-	[TYPE_PCI1756] = {
-		.name		= "pci1756",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1756,
-		.nsubdevs	= 3,
-		.sdi[1]		= { 32, PCI1756_IDI, 2, 0, },
-		.sdo[1]		= { 32, PCI1756_IDO, 2, 0, },
-		.boardid	= { 4, PCI175x_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
-	},
-	[TYPE_PCI1760] = {
-		/* This card has its own 'attach' */
-		.name		= "pci1760",
-		.main_pci_region = 0,
-		.cardtype	= TYPE_PCI1760,
-		.nsubdevs	= 4,
-		.io_access	= IO_8b,
-	},
-	[TYPE_PCI1762] = {
-		.name		= "pci1762",
-		.main_pci_region = PCIDIO_MAINREG,
-		.cardtype	= TYPE_PCI1762,
-		.nsubdevs	= 3,
-		.sdi[1]		= { 16, PCI1762_IDI, 1, 0, },
-		.sdo[1]		= { 16, PCI1762_RO, 1, 0, },
-		.boardid	= { 4, PCI1762_BOARDID, 1, SDF_INTERNAL, },
-		.io_access	= IO_16b,
-	},
-};
-
-struct pci_dio_private {
-	char GlobalIrqEnabled;	/*  1= any IRQ source is enabled */
-	/*  PCI-1760 specific data */
-	unsigned char IDICntEnable;	/* counter's counting enable status */
-	unsigned char IDICntOverEnable;	/* counter's overflow interrupts enable
-					 * status */
-	unsigned char IDICntMatchEnable;	/* counter's match interrupts
-						 * enable status */
-	unsigned char IDICntEdge;	/* counter's count edge value
-					 * (bit=0 - rising, =1 - falling) */
-	unsigned short CntResValue[8];	/*  counters' reset value */
-	unsigned short CntMatchValue[8]; /*  counters' match interrupt value */
-	unsigned char IDIFiltersEn; /*  IDI's digital filters enable status */
-	unsigned char IDIPatMatchEn;	/*  IDI's pattern match enable status */
-	unsigned char IDIPatMatchValue;	/*  IDI's pattern match value */
-	unsigned short IDIFiltrLow[8];	/*  IDI's filter value low signal */
-	unsigned short IDIFiltrHigh[8];	/*  IDI's filter value high signal */
-};
-
-/*
-==============================================================================
-*/
-static int pci_dio_insn_bits_di_b(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
-{
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
-
-	data[1] = 0;
-	for (i = 0; i < d->regs; i++)
-		data[1] |= inb(dev->iobase + d->addr + i) << (8 * i);
-
-	return insn->n;
-}
-
-/*
-==============================================================================
-*/
-static int pci_dio_insn_bits_di_w(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
-{
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
-
-	data[1] = 0;
-	for (i = 0; i < d->regs; i++)
-		data[1] |= inw(dev->iobase + d->addr + 2 * i) << (16 * i);
-
-	return insn->n;
-}
-
-static int pci_dio_insn_bits_do_b(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
-
-	if (comedi_dio_update_state(s, data)) {
-		for (i = 0; i < d->regs; i++)
-			outb((s->state >> (8 * i)) & 0xff,
-			     dev->iobase + d->addr + i);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pci_dio_insn_bits_do_w(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
-	int i;
-
-	if (comedi_dio_update_state(s, data)) {
-		for (i = 0; i < d->regs; i++)
-			outw((s->state >> (16 * i)) & 0xffff,
-			     dev->iobase + d->addr + 2 * i);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_unchecked_mbxrequest(struct comedi_device *dev,
-					unsigned char *omb, unsigned char *imb,
-					int repeats)
-{
-	int cnt, tout, ok = 0;
-
-	for (cnt = 0; cnt < repeats; cnt++) {
-		outb(omb[0], dev->iobase + OMB0);
-		outb(omb[1], dev->iobase + OMB1);
-		outb(omb[2], dev->iobase + OMB2);
-		outb(omb[3], dev->iobase + OMB3);
-		for (tout = 0; tout < 251; tout++) {
-			imb[2] = inb(dev->iobase + IMB2);
-			if (imb[2] == omb[2]) {
-				imb[0] = inb(dev->iobase + IMB0);
-				imb[1] = inb(dev->iobase + IMB1);
-				imb[3] = inb(dev->iobase + IMB3);
-				ok = 1;
-				break;
-			}
-			udelay(1);
-		}
-		if (ok)
-			return 0;
-	}
-
-	dev_err(dev->class_dev, "PCI-1760 mailbox request timeout!\n");
-	return -ETIME;
-}
-
-static int pci1760_clear_imb2(struct comedi_device *dev)
-{
-	unsigned char omb[4] = { 0x0, 0x0, CMD_ClearIMB2, 0x0 };
-	unsigned char imb[4];
-	/* check if imb2 is already clear */
-	if (inb(dev->iobase + IMB2) == CMD_ClearIMB2)
-		return 0;
-	return pci1760_unchecked_mbxrequest(dev, omb, imb, OMBCMD_RETRY);
-}
-
-static int pci1760_mbxrequest(struct comedi_device *dev,
-			      unsigned char *omb, unsigned char *imb)
-{
-	if (omb[2] == CMD_ClearIMB2) {
-		dev_err(dev->class_dev,
-			"bug! this function should not be used for CMD_ClearIMB2 command\n");
-		return -EINVAL;
-	}
-	if (inb(dev->iobase + IMB2) == omb[2]) {
-		int retval;
-
-		retval = pci1760_clear_imb2(dev);
-		if (retval < 0)
-			return retval;
-	}
-	return pci1760_unchecked_mbxrequest(dev, omb, imb, OMBCMD_RETRY);
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_bits_di(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	data[1] = inb(dev->iobase + IMB3);
-
-	return insn->n;
-}
-
-static int pci1760_insn_bits_do(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	int ret;
-	unsigned char omb[4] = {
-		0x00,
-		0x00,
-		CMD_SetRelaysOutput,
-		0x00
-	};
-	unsigned char imb[4];
-
-	if (comedi_dio_update_state(s, data)) {
-		omb[0] = s->state;
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_cnt_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	int ret, n;
-	unsigned char omb[4] = {
-		CR_CHAN(insn->chanspec) & 0x07,
-		0x00,
-		CMD_GetIDICntCurValue,
-		0x00
-	};
-	unsigned char imb[4];
-
-	for (n = 0; n < insn->n; n++) {
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-		data[n] = (imb[1] << 8) + imb[0];
-	}
-
-	return n;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_insn_cnt_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
-{
-	struct pci_dio_private *devpriv = dev->private;
-	int ret;
-	unsigned char chan = CR_CHAN(insn->chanspec) & 0x07;
-	unsigned char bitmask = 1 << chan;
-	unsigned char omb[4] = {
-		data[0] & 0xff,
-		(data[0] >> 8) & 0xff,
-		CMD_SetIDI0CntResetValue + chan,
-		0x00
-	};
-	unsigned char imb[4];
-
-	/* Set reset value if different */
-	if (devpriv->CntResValue[chan] != (data[0] & 0xffff)) {
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-		devpriv->CntResValue[chan] = data[0] & 0xffff;
-	}
-
-	omb[0] = bitmask;	/*  reset counter to it reset value */
-	omb[2] = CMD_ResetIDICounters;
-	ret = pci1760_mbxrequest(dev, omb, imb);
-	if (!ret)
-		return ret;
-
-	/*  start counter if it don't run */
-	if (!(bitmask & devpriv->IDICntEnable)) {
-		omb[0] = bitmask;
-		omb[2] = CMD_EnableIDICounters;
-		ret = pci1760_mbxrequest(dev, omb, imb);
-		if (!ret)
-			return ret;
-		devpriv->IDICntEnable |= bitmask;
-	}
-	return 1;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_reset(struct comedi_device *dev)
-{
-	struct pci_dio_private *devpriv = dev->private;
-	int i;
-	unsigned char omb[4] = { 0x00, 0x00, 0x00, 0x00 };
-	unsigned char imb[4];
-
-	outb(0, dev->iobase + INTCSR0);	/*  disable IRQ */
-	outb(0, dev->iobase + INTCSR1);
-	outb(0, dev->iobase + INTCSR2);
-	outb(0, dev->iobase + INTCSR3);
-	devpriv->GlobalIrqEnabled = 0;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_SetRelaysOutput;	/*  reset relay outputs */
-	pci1760_mbxrequest(dev, omb, imb);
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EnableIDICounters;	/*  disable IDI up counters */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntEnable = 0;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_OverflowIDICounters; /* disable counters overflow
-					   * interrupts */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntOverEnable = 0;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_MatchIntIDICounters; /* disable counters match value
-					   * interrupts */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntMatchEnable = 0;
-
-	omb[0] = 0x00;
-	omb[1] = 0x80;
-	for (i = 0; i < 8; i++) {	/*  set IDI up counters match value */
-		omb[2] = CMD_SetIDI0CntMatchValue + i;
-		pci1760_mbxrequest(dev, omb, imb);
-		devpriv->CntMatchValue[i] = 0x8000;
-	}
-
-	omb[0] = 0x00;
-	omb[1] = 0x00;
-	for (i = 0; i < 8; i++) {	/*  set IDI up counters reset value */
-		omb[2] = CMD_SetIDI0CntResetValue + i;
-		pci1760_mbxrequest(dev, omb, imb);
-		devpriv->CntResValue[i] = 0x0000;
-	}
-
-	omb[0] = 0xff;
-	omb[2] = CMD_ResetIDICounters; /* reset IDI up counters to reset
-					* values */
-	pci1760_mbxrequest(dev, omb, imb);
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EdgeIDICounters;	/*  set IDI up counters count edge */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDICntEdge = 0x00;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EnableIDIFilters;	/*  disable all digital in filters */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDIFiltersEn = 0x00;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_EnableIDIPatternMatch;	/*  disable pattern matching */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDIPatMatchEn = 0x00;
-
-	omb[0] = 0x00;
-	omb[2] = CMD_SetIDIPatternMatch;	/*  set pattern match value */
-	pci1760_mbxrequest(dev, omb, imb);
-	devpriv->IDIPatMatchValue = 0x00;
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci_dio_reset(struct comedi_device *dev)
-{
-	const struct dio_boardtype *board = dev->board_ptr;
-
-	switch (board->cardtype) {
-	case TYPE_PCI1730:
-		outb(0, dev->iobase + PCI1730_DO);	/*  clear outputs */
-		outb(0, dev->iobase + PCI1730_DO + 1);
-		outb(0, dev->iobase + PCI1730_IDO);
-		outb(0, dev->iobase + PCI1730_IDO + 1);
-		/* fallthrough */
-	case TYPE_PCI1733:
-		/* disable interrupts */
-		outb(0, dev->iobase + PCI1730_3_INT_EN);
-		/* clear interrupts */
-		outb(0x0f, dev->iobase + PCI1730_3_INT_CLR);
-		/* set rising edge trigger */
-		outb(0, dev->iobase + PCI1730_3_INT_RF);
-		break;
-	case TYPE_PCI1734:
-		outb(0, dev->iobase + PCI1734_IDO);	/*  clear outputs */
-		outb(0, dev->iobase + PCI1734_IDO + 1);
-		outb(0, dev->iobase + PCI1734_IDO + 2);
-		outb(0, dev->iobase + PCI1734_IDO + 3);
-		break;
-	case TYPE_PCI1735:
-		outb(0, dev->iobase + PCI1735_DO);	/*  clear outputs */
-		outb(0, dev->iobase + PCI1735_DO + 1);
-		outb(0, dev->iobase + PCI1735_DO + 2);
-		outb(0, dev->iobase + PCI1735_DO + 3);
-		break;
-
-	case TYPE_PCI1736:
-		outb(0, dev->iobase + PCI1736_IDO);
-		outb(0, dev->iobase + PCI1736_IDO + 1);
-		/* disable interrupts */
-		outb(0, dev->iobase + PCI1736_3_INT_EN);
-		/* clear interrupts */
-		outb(0x0f, dev->iobase + PCI1736_3_INT_CLR);
-		/* set rising edge trigger */
-		outb(0, dev->iobase + PCI1736_3_INT_RF);
-		break;
-
-	case TYPE_PCI1739:
-		/* disable & clear interrupts */
-		outb(0x88, dev->iobase + PCI1739_ICR);
-		break;
-
-	case TYPE_PCI1750:
-	case TYPE_PCI1751:
-		/* disable & clear interrupts */
-		outb(0x88, dev->iobase + PCI1750_ICR);
-		break;
-	case TYPE_PCI1752:
-		outw(0, dev->iobase + PCI1752_6_CFC); /* disable channel freeze
-						       * function */
-		outw(0, dev->iobase + PCI1752_IDO);	/*  clear outputs */
-		outw(0, dev->iobase + PCI1752_IDO + 2);
-		outw(0, dev->iobase + PCI1752_IDO2);
-		outw(0, dev->iobase + PCI1752_IDO2 + 2);
-		break;
-	case TYPE_PCI1753E:
-		outb(0x88, dev->iobase + PCI1753E_ICR0); /* disable & clear
-							  * interrupts */
-		outb(0x80, dev->iobase + PCI1753E_ICR1);
-		outb(0x80, dev->iobase + PCI1753E_ICR2);
-		outb(0x80, dev->iobase + PCI1753E_ICR3);
-		/* fallthrough */
-	case TYPE_PCI1753:
-		outb(0x88, dev->iobase + PCI1753_ICR0); /* disable & clear
-							 * interrupts */
-		outb(0x80, dev->iobase + PCI1753_ICR1);
-		outb(0x80, dev->iobase + PCI1753_ICR2);
-		outb(0x80, dev->iobase + PCI1753_ICR3);
-		break;
-	case TYPE_PCI1754:
-		outw(0x08, dev->iobase + PCI1754_6_ICR0); /* disable and clear
-							   * interrupts */
-		outw(0x08, dev->iobase + PCI1754_6_ICR1);
-		outw(0x08, dev->iobase + PCI1754_ICR2);
-		outw(0x08, dev->iobase + PCI1754_ICR3);
-		break;
-	case TYPE_PCI1756:
-		outw(0, dev->iobase + PCI1752_6_CFC); /* disable channel freeze
-						       * function */
-		outw(0x08, dev->iobase + PCI1754_6_ICR0); /* disable and clear
-							   * interrupts */
-		outw(0x08, dev->iobase + PCI1754_6_ICR1);
-		outw(0, dev->iobase + PCI1756_IDO);	/*  clear outputs */
-		outw(0, dev->iobase + PCI1756_IDO + 2);
-		break;
-	case TYPE_PCI1760:
-		pci1760_reset(dev);
-		break;
-	case TYPE_PCI1762:
-		outw(0x0101, dev->iobase + PCI1762_ICR); /* disable & clear
-							  * interrupts */
-		break;
-	}
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci1760_attach(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->len_chanlist = 8;
-	s->range_table = &range_digital;
-	s->insn_bits = pci1760_insn_bits_di;
-
-	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->len_chanlist = 8;
-	s->range_table = &range_digital;
-	s->state = 0;
-	s->insn_bits = pci1760_insn_bits_do;
-
-	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_TIMER;
-	s->subdev_flags = SDF_WRITABLE | SDF_LSAMPL;
-	s->n_chan = 2;
-	s->maxdata = 0xffffffff;
-	s->len_chanlist = 2;
-/*       s->insn_config=pci1760_insn_pwm_cfg; */
-
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_COUNTER;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 0xffff;
-	s->len_chanlist = 8;
-	s->insn_read = pci1760_insn_cnt_read;
-	s->insn_write = pci1760_insn_cnt_write;
-/*       s->insn_config=pci1760_insn_cnt_cfg; */
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci_dio_add_di(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  const struct diosubd_data *d)
-{
-	const struct dio_boardtype *board = dev->board_ptr;
-
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE | d->specflags;
-	if (d->chans > 16)
-		s->subdev_flags |= SDF_LSAMPL;
-	s->n_chan = d->chans;
-	s->maxdata = 1;
-	s->len_chanlist = d->chans;
-	s->range_table = &range_digital;
-	switch (board->io_access) {
-	case IO_8b:
-		s->insn_bits = pci_dio_insn_bits_di_b;
-		break;
-	case IO_16b:
-		s->insn_bits = pci_dio_insn_bits_di_w;
-		break;
-	}
-	s->private = (void *)d;
-
-	return 0;
-}
-
-/*
-==============================================================================
-*/
-static int pci_dio_add_do(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  const struct diosubd_data *d)
-{
-	const struct dio_boardtype *board = dev->board_ptr;
-
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	if (d->chans > 16)
-		s->subdev_flags |= SDF_LSAMPL;
-	s->n_chan = d->chans;
-	s->maxdata = 1;
-	s->len_chanlist = d->chans;
-	s->range_table = &range_digital;
-	s->state = 0;
-	switch (board->io_access) {
-	case IO_8b:
-		s->insn_bits = pci_dio_insn_bits_do_b;
-		break;
-	case IO_16b:
-		s->insn_bits = pci_dio_insn_bits_do_w;
-		break;
-	}
-	s->private = (void *)d;
-
-	return 0;
-}
-
-static unsigned long pci_dio_override_cardtype(struct pci_dev *pcidev,
-					       unsigned long cardtype)
-{
-	/*
-	 * Change cardtype from TYPE_PCI1753 to TYPE_PCI1753E if expansion
-	 * board available.  Need to enable PCI device and request the main
-	 * registers PCI BAR temporarily to perform the test.
-	 */
-	if (cardtype != TYPE_PCI1753)
-		return cardtype;
-	if (pci_enable_device(pcidev) < 0)
-		return cardtype;
-	if (pci_request_region(pcidev, PCIDIO_MAINREG, "adv_pci_dio") == 0) {
-		/*
-		 * This test is based on Advantech's "advdaq" driver source
-		 * (which declares its module licence as "GPL" although the
-		 * driver source does not include a "COPYING" file).
-		 */
-		unsigned long reg =
-			pci_resource_start(pcidev, PCIDIO_MAINREG) + 53;
-
-		outb(0x05, reg);
-		if ((inb(reg) & 0x07) == 0x02) {
-			outb(0x02, reg);
-			if ((inb(reg) & 0x07) == 0x05)
-				cardtype = TYPE_PCI1753E;
-		}
-		pci_release_region(pcidev, PCIDIO_MAINREG);
-	}
-	pci_disable_device(pcidev);
-	return cardtype;
-}
-
-static int pci_dio_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct dio_boardtype *board = NULL;
-	struct pci_dio_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret, subdev, i, j;
-
-	if (context < ARRAY_SIZE(boardtypes))
-		board = &boardtypes[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, board->main_pci_region);
-
-	ret = comedi_alloc_subdevices(dev, board->nsubdevs);
-	if (ret)
-		return ret;
-
-	subdev = 0;
-	for (i = 0; i < MAX_DI_SUBDEVS; i++)
-		if (board->sdi[i].chans) {
-			s = &dev->subdevices[subdev];
-			pci_dio_add_di(dev, s, &board->sdi[i]);
-			subdev++;
-		}
-
-	for (i = 0; i < MAX_DO_SUBDEVS; i++)
-		if (board->sdo[i].chans) {
-			s = &dev->subdevices[subdev];
-			pci_dio_add_do(dev, s, &board->sdo[i]);
-			subdev++;
-		}
-
-	for (i = 0; i < MAX_DIO_SUBDEVG; i++)
-		for (j = 0; j < board->sdio[i].regs; j++) {
-			s = &dev->subdevices[subdev];
-			ret = subdev_8255_init(dev, s, NULL,
-					       board->sdio[i].addr +
-					       j * I8255_SIZE);
-			if (ret)
-				return ret;
-			subdev++;
-		}
-
-	if (board->boardid.chans) {
-		s = &dev->subdevices[subdev];
-		s->type = COMEDI_SUBD_DI;
-		pci_dio_add_di(dev, s, &board->boardid);
-		subdev++;
-	}
-
-	if (board->timer_regbase) {
-		s = &dev->subdevices[subdev];
-
-		dev->pacer = comedi_8254_init(dev->iobase +
-					      board->timer_regbase,
-					      0, I8254_IO8, 0);
-		if (!dev->pacer)
-			return -ENOMEM;
-
-		comedi_8254_subdevice_init(s, dev->pacer);
-
-		subdev++;
-	}
-
-	if (board->cardtype == TYPE_PCI1760)
-		pci1760_attach(dev);
-
-	pci_dio_reset(dev);
-
-	return 0;
-}
-
-static void pci_dio_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		pci_dio_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver adv_pci_dio_driver = {
-	.driver_name	= "adv_pci_dio",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci_dio_auto_attach,
-	.detach		= pci_dio_detach,
-};
-
-static int adv_pci_dio_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	unsigned long cardtype;
-
-	cardtype = pci_dio_override_cardtype(dev, id->driver_data);
-	return comedi_pci_auto_config(dev, &adv_pci_dio_driver, cardtype);
-}
-
-static const struct pci_device_id adv_pci_dio_pci_table[] = {
-	{ PCI_VDEVICE(ADVANTECH, 0x1730), TYPE_PCI1730 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1733), TYPE_PCI1733 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1734), TYPE_PCI1734 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1735), TYPE_PCI1735 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1736), TYPE_PCI1736 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1739), TYPE_PCI1739 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1750), TYPE_PCI1750 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1751), TYPE_PCI1751 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1752), TYPE_PCI1752 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1753), TYPE_PCI1753 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1754), TYPE_PCI1754 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1756), TYPE_PCI1756 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1760), TYPE_PCI1760 },
-	{ PCI_VDEVICE(ADVANTECH, 0x1762), TYPE_PCI1762 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, adv_pci_dio_pci_table);
-
-static struct pci_driver adv_pci_dio_pci_driver = {
-	.name		= "adv_pci_dio",
-	.id_table	= adv_pci_dio_pci_table,
-	.probe		= adv_pci_dio_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(adv_pci_dio_driver, adv_pci_dio_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
deleted file mode 100644
index fbc3e5aa94cb..000000000000
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
-
-    comedi/drivers/aio_aio12_8.c
-
-    Driver for Access I/O Products PC-104 AIO12-8 Analog I/O Board
-    Copyright (C) 2006 C&C Technologies, Inc.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-/*
-
-Driver: aio_aio12_8
-Description: Access I/O Products PC-104 AIO12-8 Analog I/O Board
-Author: Pablo Mejia <pablo.mejia@cctechnol.com>
-Devices: [Access I/O] PC-104 AIO12-8 (aio_aio12_8)
-	 [Access I/O] PC-104 AI12-8 (aio_ai12_8)
-	 [Access I/O] PC-104 AO12-8 (aio_ao12_8)
-Status: experimental
-
-Configuration Options:
-  [0] - I/O port base address
-
-Notes:
-
-  Only synchronous operations are supported.
-
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-#include "8255.h"
-
-/*
- * Register map
- */
-#define AIO12_8_STATUS_REG		0x00
-#define AIO12_8_STATUS_ADC_EOC		(1 << 7)
-#define AIO12_8_STATUS_PORT_C_COS	(1 << 6)
-#define AIO12_8_STATUS_IRQ_ENA		(1 << 2)
-#define AIO12_8_INTERRUPT_REG		0x01
-#define AIO12_8_INTERRUPT_ADC		(1 << 7)
-#define AIO12_8_INTERRUPT_COS		(1 << 6)
-#define AIO12_8_INTERRUPT_COUNTER1	(1 << 5)
-#define AIO12_8_INTERRUPT_PORT_C3	(1 << 4)
-#define AIO12_8_INTERRUPT_PORT_C0	(1 << 3)
-#define AIO12_8_INTERRUPT_ENA		(1 << 2)
-#define AIO12_8_ADC_REG			0x02
-#define AIO12_8_ADC_MODE_NORMAL		(0 << 6)
-#define AIO12_8_ADC_MODE_INT_CLK	(1 << 6)
-#define AIO12_8_ADC_MODE_STANDBY	(2 << 6)
-#define AIO12_8_ADC_MODE_POWERDOWN	(3 << 6)
-#define AIO12_8_ADC_ACQ_3USEC		(0 << 5)
-#define AIO12_8_ADC_ACQ_PROGRAM		(1 << 5)
-#define AIO12_8_ADC_RANGE(x)		((x) << 3)
-#define AIO12_8_ADC_CHAN(x)		((x) << 0)
-#define AIO12_8_DAC_REG(x)		(0x04 + (x) * 2)
-#define AIO12_8_8254_BASE_REG		0x0c
-#define AIO12_8_8255_BASE_REG		0x10
-#define AIO12_8_DIO_CONTROL_REG		0x14
-#define AIO12_8_DIO_CONTROL_TST		(1 << 0)
-#define AIO12_8_ADC_TRIGGER_REG		0x15
-#define AIO12_8_ADC_TRIGGER_RANGE(x)	((x) << 3)
-#define AIO12_8_ADC_TRIGGER_CHAN(x)	((x) << 0)
-#define AIO12_8_TRIGGER_REG		0x16
-#define AIO12_8_TRIGGER_ADTRIG		(1 << 1)
-#define AIO12_8_TRIGGER_DACTRIG		(1 << 0)
-#define AIO12_8_COS_REG			0x17
-#define AIO12_8_DAC_ENABLE_REG		0x18
-#define AIO12_8_DAC_ENABLE_REF_ENA	(1 << 0)
-
-struct aio12_8_boardtype {
-	const char *name;
-	int ai_nchan;
-	int ao_nchan;
-};
-
-static const struct aio12_8_boardtype board_types[] = {
-	{
-		.name		= "aio_aio12_8",
-		.ai_nchan	= 8,
-		.ao_nchan	= 4,
-	}, {
-		.name		= "aio_ai12_8",
-		.ai_nchan	= 8,
-	}, {
-		.name		= "aio_ao12_8",
-		.ao_nchan	= 4,
-	},
-};
-
-static int aio_aio12_8_ai_eoc(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + AIO12_8_STATUS_REG);
-	if (status & AIO12_8_STATUS_ADC_EOC)
-		return 0;
-	return -EBUSY;
-}
-
-static int aio_aio12_8_ai_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned char control;
-	int ret;
-	int n;
-
-	/*
-	 * Setup the control byte for internal 2MHz clock, 3uS conversion,
-	 * at the desired range of the requested channel.
-	 */
-	control = AIO12_8_ADC_MODE_NORMAL | AIO12_8_ADC_ACQ_3USEC |
-		  AIO12_8_ADC_RANGE(range) | AIO12_8_ADC_CHAN(chan);
-
-	/* Read status to clear EOC latch */
-	inb(dev->iobase + AIO12_8_STATUS_REG);
-
-	for (n = 0; n < insn->n; n++) {
-		/*  Setup and start conversion */
-		outb(control, dev->iobase + AIO12_8_ADC_REG);
-
-		/*  Wait for conversion to complete */
-		ret = comedi_timeout(dev, s, insn, aio_aio12_8_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[n] = inw(dev->iobase + AIO12_8_ADC_REG) & s->maxdata;
-	}
-
-	return insn->n;
-}
-
-static int aio_aio12_8_ao_insn_write(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	/* enable DACs */
-	outb(AIO12_8_DAC_ENABLE_REF_ENA, dev->iobase + AIO12_8_DAC_ENABLE_REG);
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, dev->iobase + AIO12_8_DAC_REG(chan));
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static const struct comedi_lrange range_aio_aio12_8 = {
-	4, {
-		UNI_RANGE(5),
-		BIP_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(10)
-	}
-};
-
-static int aio_aio12_8_attach(struct comedi_device *dev,
-			      struct comedi_devconfig *it)
-{
-	const struct aio12_8_boardtype *board = dev->board_ptr;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 32);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	if (board->ai_nchan) {
-		/* Analog input subdevice */
-		s->type		= COMEDI_SUBD_AI;
-		s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF;
-		s->n_chan	= board->ai_nchan;
-		s->maxdata	= 0x0fff;
-		s->range_table	= &range_aio_aio12_8;
-		s->insn_read	= aio_aio12_8_ai_read;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[1];
-	if (board->ao_nchan) {
-		/* Analog output subdevice */
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_DIFF;
-		s->n_chan	= 4;
-		s->maxdata	= 0x0fff;
-		s->range_table	= &range_aio_aio12_8;
-		s->insn_write	= aio_aio12_8_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[2];
-	/* 8255 Digital i/o subdevice */
-	ret = subdev_8255_init(dev, s, NULL, AIO12_8_8255_BASE_REG);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[3];
-	/* 8254 counter/timer subdevice */
-	s->type		= COMEDI_SUBD_UNUSED;
-
-	return 0;
-}
-
-static struct comedi_driver aio_aio12_8_driver = {
-	.driver_name	= "aio_aio12_8",
-	.module		= THIS_MODULE,
-	.attach		= aio_aio12_8_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &board_types[0].name,
-	.num_names	= ARRAY_SIZE(board_types),
-	.offset		= sizeof(struct aio12_8_boardtype),
-};
-module_comedi_driver(aio_aio12_8_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/aio_iiro_16.c b/drivers/staging/comedi/drivers/aio_iiro_16.c
deleted file mode 100644
index 35b2f98f0de9..000000000000
--- a/drivers/staging/comedi/drivers/aio_iiro_16.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * aio_iiro_16.c
- * Comedi driver for Access I/O Products 104-IIRO-16 board
- * Copyright (C) 2006 C&C Technologies, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: aio_iiro_16
- * Description: Access I/O Products PC/104 Isolated Input/Relay Output Board
- * Author: Zachary Ware <zach.ware@cctechnol.com>
- * Devices: [Access I/O] 104-IIRO-16 (aio_iiro_16)
- * Status: experimental
- *
- * Configuration Options:
- *   [0] - I/O port base address
- *   [1] - IRQ (optional)
- *
- * The board supports interrupts on change of state of the digital inputs.
- * The sample data returned by the async command indicates which inputs
- * changed state and the current state of the inputs:
- *
- *	Bit 23 - IRQ Enable (1) / Disable (0)
- *	Bit 17 - Input 8-15 Changed State (1 = Changed, 0 = No Change)
- *	Bit 16 - Input 0-7 Changed State (1 = Changed, 0 = No Change)
- *	Bit 15 - Digital input 15
- *	...
- *	Bit 0  - Digital input 0
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#define AIO_IIRO_16_RELAY_0_7		0x00
-#define AIO_IIRO_16_INPUT_0_7		0x01
-#define AIO_IIRO_16_IRQ			0x02
-#define AIO_IIRO_16_RELAY_8_15		0x04
-#define AIO_IIRO_16_INPUT_8_15		0x05
-#define AIO_IIRO_16_STATUS		0x07
-#define AIO_IIRO_16_STATUS_IRQE		BIT(7)
-#define AIO_IIRO_16_STATUS_INPUT_8_15	BIT(1)
-#define AIO_IIRO_16_STATUS_INPUT_0_7	BIT(0)
-
-static unsigned int aio_iiro_16_read_inputs(struct comedi_device *dev)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + AIO_IIRO_16_INPUT_0_7);
-	val |= inb(dev->iobase + AIO_IIRO_16_INPUT_8_15) << 8;
-
-	return val;
-}
-
-static irqreturn_t aio_iiro_16_cos(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int status;
-	unsigned int val;
-
-	status = inb(dev->iobase + AIO_IIRO_16_STATUS);
-	if (!(status & AIO_IIRO_16_STATUS_IRQE))
-		return IRQ_NONE;
-
-	val = aio_iiro_16_read_inputs(dev);
-	val |= (status << 16);
-
-	comedi_buf_write_samples(s, &val, 1);
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static void aio_iiro_enable_irq(struct comedi_device *dev, bool enable)
-{
-	if (enable)
-		inb(dev->iobase + AIO_IIRO_16_IRQ);
-	else
-		outb(0, dev->iobase + AIO_IIRO_16_IRQ);
-}
-
-static int aio_iiro_16_cos_cancel(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	aio_iiro_enable_irq(dev, false);
-
-	return 0;
-}
-
-static int aio_iiro_16_cos_cmd(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	aio_iiro_enable_irq(dev, true);
-
-	return 0;
-}
-
-static int aio_iiro_16_cos_cmdtest(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int aio_iiro_16_do_insn_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		outb(s->state & 0xff, dev->iobase + AIO_IIRO_16_RELAY_0_7);
-		outb((s->state >> 8) & 0xff,
-		     dev->iobase + AIO_IIRO_16_RELAY_8_15);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int aio_iiro_16_di_insn_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	data[1] = aio_iiro_16_read_inputs(dev);
-
-	return insn->n;
-}
-
-static int aio_iiro_16_attach(struct comedi_device *dev,
-			      struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x8);
-	if (ret)
-		return ret;
-
-	aio_iiro_enable_irq(dev, false);
-
-	/*
-	 * Digital input change of state interrupts are optionally supported
-	 * using IRQ 2-7, 10-12, 14, or 15.
-	 */
-	if ((1 << it->options[1]) & 0xdcfc) {
-		ret = request_irq(it->options[1], aio_iiro_16_cos, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= aio_iiro_16_do_insn_bits;
-
-	/* get the initial state of the relays */
-	s->state = inb(dev->iobase + AIO_IIRO_16_RELAY_0_7) |
-		   (inb(dev->iobase + AIO_IIRO_16_RELAY_8_15) << 8);
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= aio_iiro_16_di_insn_bits;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ | SDF_LSAMPL;
-		s->len_chanlist	= 1;
-		s->do_cmdtest	= aio_iiro_16_cos_cmdtest;
-		s->do_cmd	= aio_iiro_16_cos_cmd;
-		s->cancel	= aio_iiro_16_cos_cancel;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver aio_iiro_16_driver = {
-	.driver_name	= "aio_iiro_16",
-	.module		= THIS_MODULE,
-	.attach		= aio_iiro_16_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(aio_iiro_16_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Access I/O Products 104-IIRO-16 board");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amcc_s5933.h b/drivers/staging/comedi/drivers/amcc_s5933.h
deleted file mode 100644
index d4b8c0195bd3..000000000000
--- a/drivers/staging/comedi/drivers/amcc_s5933.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
-    comedi/drivers/amcc_s5933.h
-
-    Stuff for AMCC S5933 PCI Controller
-
-    Author: Michal Dobes <dobes@tesnet.cz>
-
-    Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver
-    made by Andrea Cisternino  <acister@pcape1.pi.infn.it>
-    and as result of espionage from MITE code made by David A. Schleef.
-    Thanks to AMCC for their on-line documentation and bus master DMA
-    example.
-*/
-
-#ifndef _AMCC_S5933_H_
-#define _AMCC_S5933_H_
-
-/****************************************************************************/
-/* AMCC Operation Register Offsets - PCI                                    */
-/****************************************************************************/
-
-#define AMCC_OP_REG_OMB1         0x00
-#define AMCC_OP_REG_OMB2         0x04
-#define AMCC_OP_REG_OMB3         0x08
-#define AMCC_OP_REG_OMB4         0x0c
-#define AMCC_OP_REG_IMB1         0x10
-#define AMCC_OP_REG_IMB2         0x14
-#define AMCC_OP_REG_IMB3         0x18
-#define AMCC_OP_REG_IMB4         0x1c
-#define AMCC_OP_REG_FIFO         0x20
-#define AMCC_OP_REG_MWAR         0x24
-#define AMCC_OP_REG_MWTC         0x28
-#define AMCC_OP_REG_MRAR         0x2c
-#define AMCC_OP_REG_MRTC         0x30
-#define AMCC_OP_REG_MBEF         0x34
-#define AMCC_OP_REG_INTCSR       0x38
-#define  AMCC_OP_REG_INTCSR_SRC  (AMCC_OP_REG_INTCSR + 2)	/* INT source */
-#define  AMCC_OP_REG_INTCSR_FEC  (AMCC_OP_REG_INTCSR + 3)	/* FIFO ctrl */
-#define AMCC_OP_REG_MCSR         0x3c
-#define  AMCC_OP_REG_MCSR_NVDATA (AMCC_OP_REG_MCSR + 2)	/* Data in byte 2 */
-#define  AMCC_OP_REG_MCSR_NVCMD  (AMCC_OP_REG_MCSR + 3)	/* Command in byte 3 */
-
-#define AMCC_FIFO_DEPTH_DWORD	8
-#define AMCC_FIFO_DEPTH_BYTES	(8 * sizeof(u32))
-
-/****************************************************************************/
-/* AMCC - PCI Interrupt Control/Status Register                            */
-/****************************************************************************/
-#define INTCSR_OUTBOX_BYTE(x)	((x) & 0x3)
-#define INTCSR_OUTBOX_SELECT(x)	(((x) & 0x3) << 2)
-#define INTCSR_OUTBOX_EMPTY_INT	0x10	/*  enable outbox empty interrupt */
-#define INTCSR_INBOX_BYTE(x)	(((x) & 0x3) << 8)
-#define INTCSR_INBOX_SELECT(x)	(((x) & 0x3) << 10)
-#define INTCSR_INBOX_FULL_INT	0x1000	/*  enable inbox full interrupt */
-/* read, or write clear inbox full interrupt */
-#define INTCSR_INBOX_INTR_STATUS	0x20000
-/* read only, interrupt asserted */
-#define INTCSR_INTR_ASSERTED	0x800000
-
-/****************************************************************************/
-/* AMCC - PCI non-volatile ram command register (byte 3 of master control/status register) */
-/****************************************************************************/
-#define MCSR_NV_LOAD_LOW_ADDR	0x0
-#define MCSR_NV_LOAD_HIGH_ADDR	0x20
-#define MCSR_NV_WRITE	0x40
-#define MCSR_NV_READ	0x60
-#define MCSR_NV_MASK	0x60
-#define MCSR_NV_ENABLE	0x80
-#define MCSR_NV_BUSY	MCSR_NV_ENABLE
-
-/****************************************************************************/
-/* AMCC Operation Registers Size - PCI                                      */
-/****************************************************************************/
-
-#define AMCC_OP_REG_SIZE	 64	/* in bytes */
-
-/****************************************************************************/
-/* AMCC Operation Register Offsets - Add-on                                 */
-/****************************************************************************/
-
-#define AMCC_OP_REG_AIMB1         0x00
-#define AMCC_OP_REG_AIMB2         0x04
-#define AMCC_OP_REG_AIMB3         0x08
-#define AMCC_OP_REG_AIMB4         0x0c
-#define AMCC_OP_REG_AOMB1         0x10
-#define AMCC_OP_REG_AOMB2         0x14
-#define AMCC_OP_REG_AOMB3         0x18
-#define AMCC_OP_REG_AOMB4         0x1c
-#define AMCC_OP_REG_AFIFO         0x20
-#define AMCC_OP_REG_AMWAR         0x24
-#define AMCC_OP_REG_APTA          0x28
-#define AMCC_OP_REG_APTD          0x2c
-#define AMCC_OP_REG_AMRAR         0x30
-#define AMCC_OP_REG_AMBEF         0x34
-#define AMCC_OP_REG_AINT          0x38
-#define AMCC_OP_REG_AGCSTS        0x3c
-#define AMCC_OP_REG_AMWTC         0x58
-#define AMCC_OP_REG_AMRTC         0x5c
-
-/****************************************************************************/
-/* AMCC - Add-on General Control/Status Register                            */
-/****************************************************************************/
-
-#define AGCSTS_CONTROL_MASK	0xfffff000
-#define  AGCSTS_NV_ACC_MASK	0xe0000000
-#define  AGCSTS_RESET_MASK	0x0e000000
-#define  AGCSTS_NV_DA_MASK	0x00ff0000
-#define  AGCSTS_BIST_MASK	0x0000f000
-#define AGCSTS_STATUS_MASK	0x000000ff
-#define  AGCSTS_TCZERO_MASK	0x000000c0
-#define  AGCSTS_FIFO_ST_MASK	0x0000003f
-
-#define AGCSTS_TC_ENABLE	0x10000000
-
-#define AGCSTS_RESET_MBFLAGS	0x08000000
-#define AGCSTS_RESET_P2A_FIFO	0x04000000
-#define AGCSTS_RESET_A2P_FIFO	0x02000000
-#define AGCSTS_RESET_FIFOS	(AGCSTS_RESET_A2P_FIFO | AGCSTS_RESET_P2A_FIFO)
-
-#define AGCSTS_A2P_TCOUNT	0x00000080
-#define AGCSTS_P2A_TCOUNT	0x00000040
-
-#define AGCSTS_FS_P2A_EMPTY	0x00000020
-#define AGCSTS_FS_P2A_HALF	0x00000010
-#define AGCSTS_FS_P2A_FULL	0x00000008
-
-#define AGCSTS_FS_A2P_EMPTY	0x00000004
-#define AGCSTS_FS_A2P_HALF	0x00000002
-#define AGCSTS_FS_A2P_FULL	0x00000001
-
-/****************************************************************************/
-/* AMCC - Add-on Interrupt Control/Status Register                            */
-/****************************************************************************/
-
-#define AINT_INT_MASK		0x00ff0000
-#define AINT_SEL_MASK		0x0000ffff
-#define  AINT_IS_ENSEL_MASK	0x00001f1f
-
-#define AINT_INT_ASSERTED	0x00800000
-#define AINT_BM_ERROR		0x00200000
-#define AINT_BIST_INT		0x00100000
-
-#define AINT_RT_COMPLETE	0x00080000
-#define AINT_WT_COMPLETE	0x00040000
-
-#define AINT_OUT_MB_INT		0x00020000
-#define AINT_IN_MB_INT		0x00010000
-
-#define AINT_READ_COMPL		0x00008000
-#define AINT_WRITE_COMPL	0x00004000
-
-#define AINT_OMB_ENABLE		0x00001000
-#define AINT_OMB_SELECT		0x00000c00
-#define AINT_OMB_BYTE		0x00000300
-
-#define AINT_IMB_ENABLE		0x00000010
-#define AINT_IMB_SELECT		0x0000000c
-#define AINT_IMB_BYTE		0x00000003
-
-/* these are bits from various different registers, needs cleanup XXX */
-/* Enable Bus Mastering */
-#define EN_A2P_TRANSFERS	0x00000400
-/* FIFO Flag Reset */
-#define RESET_A2P_FLAGS		0x04000000L
-/* FIFO Relative Priority */
-#define A2P_HI_PRIORITY		0x00000100L
-/* Identify Interrupt Sources */
-#define ANY_S593X_INT		0x00800000L
-#define READ_TC_INT		0x00080000L
-#define WRITE_TC_INT		0x00040000L
-#define IN_MB_INT		0x00020000L
-#define MASTER_ABORT_INT	0x00100000L
-#define TARGET_ABORT_INT	0x00200000L
-#define BUS_MASTER_INT		0x00200000L
-
-#endif
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c
deleted file mode 100644
index f5cfa71a90c6..000000000000
--- a/drivers/staging/comedi/drivers/amplc_dio200.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * comedi/drivers/amplc_dio200.c
- *
- * Driver for Amplicon PC212E, PC214E, PC215E, PC218E, PC272E.
- *
- * Copyright (C) 2005-2013 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: amplc_dio200
- * Description: Amplicon 200 Series ISA Digital I/O
- * Author: Ian Abbott <abbotti@mev.co.uk>
- * Devices: [Amplicon] PC212E (pc212e), PC214E (pc214e), PC215E (pc215e),
- *   PC218E (pc218e), PC272E (pc272e)
- * Updated: Mon, 18 Mar 2013 14:40:41 +0000
- *
- * Status: works
- *
- * Configuration options:
- *   [0] - I/O port base address
- *   [1] - IRQ (optional, but commands won't work without it)
- *
- * Passing a zero for an option is the same as leaving it unspecified.
- *
- * SUBDEVICES
- *
- *                     PC212E         PC214E         PC215E
- *                  -------------  -------------  -------------
- *   Subdevices           6              4              5
- *    0                 PPI-X          PPI-X          PPI-X
- *    1                 CTR-Y1         PPI-Y          PPI-Y
- *    2                 CTR-Y2         CTR-Z1*        CTR-Z1
- *    3                 CTR-Z1       INTERRUPT*       CTR-Z2
- *    4                 CTR-Z2                      INTERRUPT
- *    5               INTERRUPT
- *
- *                     PC218E         PC272E
- *                  -------------  -------------
- *   Subdevices           7              4
- *    0                 CTR-X1         PPI-X
- *    1                 CTR-X2         PPI-Y
- *    2                 CTR-Y1         PPI-Z
- *    3                 CTR-Y2       INTERRUPT
- *    4                 CTR-Z1
- *    5                 CTR-Z2
- *    6               INTERRUPT
- *
- * Each PPI is a 8255 chip providing 24 DIO channels.  The DIO channels
- * are configurable as inputs or outputs in four groups:
- *
- *   Port A  - channels  0 to  7
- *   Port B  - channels  8 to 15
- *   Port CL - channels 16 to 19
- *   Port CH - channels 20 to 23
- *
- * Only mode 0 of the 8255 chips is supported.
- *
- * Each CTR is a 8254 chip providing 3 16-bit counter channels.  Each
- * channel is configured individually with INSN_CONFIG instructions.  The
- * specific type of configuration instruction is specified in data[0].
- * Some configuration instructions expect an additional parameter in
- * data[1]; others return a value in data[1].  The following configuration
- * instructions are supported:
- *
- *   INSN_CONFIG_SET_COUNTER_MODE.  Sets the counter channel's mode and
- *     BCD/binary setting specified in data[1].
- *
- *   INSN_CONFIG_8254_READ_STATUS.  Reads the status register value for the
- *     counter channel into data[1].
- *
- *   INSN_CONFIG_SET_CLOCK_SRC.  Sets the counter channel's clock source as
- *     specified in data[1] (this is a hardware-specific value).  Not
- *     supported on PC214E.  For the other boards, valid clock sources are
- *     0 to 7 as follows:
- *
- *       0.  CLK n, the counter channel's dedicated CLK input from the SK1
- *         connector.  (N.B. for other values, the counter channel's CLKn
- *         pin on the SK1 connector is an output!)
- *       1.  Internal 10 MHz clock.
- *       2.  Internal 1 MHz clock.
- *       3.  Internal 100 kHz clock.
- *       4.  Internal 10 kHz clock.
- *       5.  Internal 1 kHz clock.
- *       6.  OUT n-1, the output of counter channel n-1 (see note 1 below).
- *       7.  Ext Clock, the counter chip's dedicated Ext Clock input from
- *         the SK1 connector.  This pin is shared by all three counter
- *         channels on the chip.
- *
- *   INSN_CONFIG_GET_CLOCK_SRC.  Returns the counter channel's current
- *     clock source in data[1].  For internal clock sources, data[2] is set
- *     to the period in ns.
- *
- *   INSN_CONFIG_SET_GATE_SRC.  Sets the counter channel's gate source as
- *     specified in data[2] (this is a hardware-specific value).  Not
- *     supported on PC214E.  For the other boards, valid gate sources are 0
- *     to 7 as follows:
- *
- *       0.  VCC (internal +5V d.c.), i.e. gate permanently enabled.
- *       1.  GND (internal 0V d.c.), i.e. gate permanently disabled.
- *       2.  GAT n, the counter channel's dedicated GAT input from the SK1
- *         connector.  (N.B. for other values, the counter channel's GATn
- *         pin on the SK1 connector is an output!)
- *       3.  /OUT n-2, the inverted output of counter channel n-2 (see note
- *         2 below).
- *       4.  Reserved.
- *       5.  Reserved.
- *       6.  Reserved.
- *       7.  Reserved.
- *
- *   INSN_CONFIG_GET_GATE_SRC.  Returns the counter channel's current gate
- *     source in data[2].
- *
- * Clock and gate interconnection notes:
- *
- *   1.  Clock source OUT n-1 is the output of the preceding channel on the
- *   same counter subdevice if n > 0, or the output of channel 2 on the
- *   preceding counter subdevice (see note 3) if n = 0.
- *
- *   2.  Gate source /OUT n-2 is the inverted output of channel 0 on the
- *   same counter subdevice if n = 2, or the inverted output of channel n+1
- *   on the preceding counter subdevice (see note 3) if n < 2.
- *
- *   3.  The counter subdevices are connected in a ring, so the highest
- *   counter subdevice precedes the lowest.
- *
- * The 'INTERRUPT' subdevice pretends to be a digital input subdevice.  The
- * digital inputs come from the interrupt status register.  The number of
- * channels matches the number of interrupt sources.  The PC214E does not
- * have an interrupt status register; see notes on 'INTERRUPT SOURCES'
- * below.
- *
- * INTERRUPT SOURCES
- *
- *                     PC212E         PC214E         PC215E
- *                  -------------  -------------  -------------
- *   Sources              6              1              6
- *    0               PPI-X-C0       JUMPER-J5      PPI-X-C0
- *    1               PPI-X-C3                      PPI-X-C3
- *    2              CTR-Y1-OUT1                    PPI-Y-C0
- *    3              CTR-Y2-OUT1                    PPI-Y-C3
- *    4              CTR-Z1-OUT1                   CTR-Z1-OUT1
- *    5              CTR-Z2-OUT1                   CTR-Z2-OUT1
- *
- *                     PC218E         PC272E
- *                  -------------  -------------
- *   Sources              6              6
- *    0              CTR-X1-OUT1     PPI-X-C0
- *    1              CTR-X2-OUT1     PPI-X-C3
- *    2              CTR-Y1-OUT1     PPI-Y-C0
- *    3              CTR-Y2-OUT1     PPI-Y-C3
- *    4              CTR-Z1-OUT1     PPI-Z-C0
- *    5              CTR-Z2-OUT1     PPI-Z-C3
- *
- * When an interrupt source is enabled in the interrupt source enable
- * register, a rising edge on the source signal latches the corresponding
- * bit to 1 in the interrupt status register.
- *
- * When the interrupt status register value as a whole (actually, just the
- * 6 least significant bits) goes from zero to non-zero, the board will
- * generate an interrupt.  No further interrupts will occur until the
- * interrupt status register is cleared to zero.  To clear a bit to zero in
- * the interrupt status register, the corresponding interrupt source must
- * be disabled in the interrupt source enable register (there is no
- * separate interrupt clear register).
- *
- * The PC214E does not have an interrupt source enable register or an
- * interrupt status register; its 'INTERRUPT' subdevice has a single
- * channel and its interrupt source is selected by the position of jumper
- * J5.
- *
- * COMMANDS
- *
- * The driver supports a read streaming acquisition command on the
- * 'INTERRUPT' subdevice.  The channel list selects the interrupt sources
- * to be enabled.  All channels will be sampled together (convert_src ==
- * TRIG_NOW).  The scan begins a short time after the hardware interrupt
- * occurs, subject to interrupt latencies (scan_begin_src == TRIG_EXT,
- * scan_begin_arg == 0).  The value read from the interrupt status register
- * is packed into a short value, one bit per requested channel, in the
- * order they appear in the channel list.
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include "amplc_dio200.h"
-
-/*
- * Board descriptions.
- */
-static const struct dio200_board dio200_isa_boards[] = {
-	{
-		.name		= "pc212e",
-		.n_subdevs	= 6,
-		.sdtype		= {
-			sd_8255, sd_8254, sd_8254, sd_8254, sd_8254, sd_intr
-		},
-		.sdinfo		= { 0x00, 0x08, 0x0c, 0x10, 0x14, 0x3f },
-		.has_int_sce	= true,
-		.has_clk_gat_sce = true,
-	}, {
-		.name		= "pc214e",
-		.n_subdevs	= 4,
-		.sdtype		= {
-			sd_8255, sd_8255, sd_8254, sd_intr
-		},
-		.sdinfo		= { 0x00, 0x08, 0x10, 0x01 },
-	}, {
-		.name		= "pc215e",
-		.n_subdevs	= 5,
-		.sdtype		= {
-			sd_8255, sd_8255, sd_8254, sd_8254, sd_intr
-		},
-		.sdinfo		= { 0x00, 0x08, 0x10, 0x14, 0x3f },
-		.has_int_sce	= true,
-		.has_clk_gat_sce = true,
-	}, {
-		.name		= "pc218e",
-		.n_subdevs	= 7,
-		.sdtype		= {
-			sd_8254, sd_8254, sd_8255, sd_8254, sd_8254, sd_intr
-		},
-		.sdinfo		= { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, 0x3f },
-		.has_int_sce	= true,
-		.has_clk_gat_sce = true,
-	}, {
-		.name		= "pc272e",
-		.n_subdevs	= 4,
-		.sdtype		= {
-			sd_8255, sd_8255, sd_8255, sd_intr
-		},
-		.sdinfo		= { 0x00, 0x08, 0x10, 0x3f },
-		.has_int_sce = true,
-	},
-};
-
-static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x20);
-	if (ret)
-		return ret;
-
-	return amplc_dio200_common_attach(dev, it->options[1], 0);
-}
-
-static struct comedi_driver amplc_dio200_driver = {
-	.driver_name	= "amplc_dio200",
-	.module		= THIS_MODULE,
-	.attach		= dio200_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &dio200_isa_boards[0].name,
-	.offset		= sizeof(struct dio200_board),
-	.num_names	= ARRAY_SIZE(dio200_isa_boards),
-};
-module_comedi_driver(amplc_dio200_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon 200 Series ISA DIO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.h b/drivers/staging/comedi/drivers/amplc_dio200.h
deleted file mode 100644
index 53fb86d59fc3..000000000000
--- a/drivers/staging/comedi/drivers/amplc_dio200.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * comedi/drivers/amplc_dio.h
- *
- * Header for amplc_dio200.c, amplc_dio200_common.c and
- * amplc_dio200_pci.c.
- *
- * Copyright (C) 2005-2013 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef AMPLC_DIO200_H_INCLUDED
-#define AMPLC_DIO200_H_INCLUDED
-
-#include <linux/types.h>
-
-struct comedi_device;
-
-/*
- * Subdevice types.
- */
-enum dio200_sdtype { sd_none, sd_intr, sd_8255, sd_8254, sd_timer };
-
-#define DIO200_MAX_SUBDEVS	8
-#define DIO200_MAX_ISNS		6
-
-struct dio200_board {
-	const char *name;
-	unsigned char mainbar;
-	unsigned short n_subdevs;	/* number of subdevices */
-	unsigned char sdtype[DIO200_MAX_SUBDEVS];	/* enum dio200_sdtype */
-	unsigned char sdinfo[DIO200_MAX_SUBDEVS];	/* depends on sdtype */
-	bool has_int_sce:1;		/* has interrupt enable/status reg */
-	bool has_clk_gat_sce:1;		/* has clock/gate selection registers */
-	bool is_pcie:1;			/* has enhanced features */
-};
-
-int amplc_dio200_common_attach(struct comedi_device *dev, unsigned int irq,
-			       unsigned long req_irq_flags);
-
-/* Used by initialization of PCIe boards. */
-void amplc_dio200_set_enhance(struct comedi_device *dev, unsigned char val);
-
-#endif
diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c
deleted file mode 100644
index d1539e798ffd..000000000000
--- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
+++ /dev/null
@@ -1,879 +0,0 @@
-/*
- * comedi/drivers/amplc_dio200_common.c
- *
- * Common support code for "amplc_dio200" and "amplc_dio200_pci".
- *
- * Copyright (C) 2005-2013 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#include "amplc_dio200.h"
-#include "comedi_8254.h"
-#include "8255.h"		/* only for register defines */
-
-/* 200 series registers */
-#define DIO200_IO_SIZE		0x20
-#define DIO200_PCIE_IO_SIZE	0x4000
-#define DIO200_CLK_SCE(x)	(0x18 + (x))	/* Group X/Y/Z clock sel reg */
-#define DIO200_GAT_SCE(x)	(0x1b + (x))	/* Group X/Y/Z gate sel reg */
-#define DIO200_INT_SCE		0x1e	/* Interrupt enable/status register */
-/* Extra registers for new PCIe boards */
-#define DIO200_ENHANCE		0x20	/* 1 to enable enhanced features */
-#define DIO200_VERSION		0x24	/* Hardware version register */
-#define DIO200_TS_CONFIG	0x600	/* Timestamp timer config register */
-#define DIO200_TS_COUNT		0x602	/* Timestamp timer count register */
-
-/*
- * Functions for constructing value for DIO_200_?CLK_SCE and
- * DIO_200_?GAT_SCE registers:
- *
- * 'which' is: 0 for CTR-X1, CTR-Y1, CTR-Z1; 1 for CTR-X2, CTR-Y2 or CTR-Z2.
- * 'chan' is the channel: 0, 1 or 2.
- * 'source' is the signal source: 0 to 7, or 0 to 31 for "enhanced" boards.
- */
-static unsigned char clk_gat_sce(unsigned int which, unsigned int chan,
-				 unsigned int source)
-{
-	return (which << 5) | (chan << 3) |
-	       ((source & 030) << 3) | (source & 007);
-}
-
-static unsigned char clk_sce(unsigned int which, unsigned int chan,
-			     unsigned int source)
-{
-	return clk_gat_sce(which, chan, source);
-}
-
-static unsigned char gat_sce(unsigned int which, unsigned int chan,
-			     unsigned int source)
-{
-	return clk_gat_sce(which, chan, source);
-}
-
-/*
- * Periods of the internal clock sources in nanoseconds.
- */
-static const unsigned int clock_period[32] = {
-	[1] = 100,		/* 10 MHz */
-	[2] = 1000,		/* 1 MHz */
-	[3] = 10000,		/* 100 kHz */
-	[4] = 100000,		/* 10 kHz */
-	[5] = 1000000,		/* 1 kHz */
-	[11] = 50,		/* 20 MHz (enhanced boards) */
-	/* clock sources 12 and later reserved for enhanced boards */
-};
-
-/*
- * Timestamp timer configuration register (for new PCIe boards).
- */
-#define TS_CONFIG_RESET		0x100	/* Reset counter to zero. */
-#define TS_CONFIG_CLK_SRC_MASK	0x0FF	/* Clock source. */
-#define TS_CONFIG_MAX_CLK_SRC	2	/* Maximum clock source value. */
-
-/*
- * Periods of the timestamp timer clock sources in nanoseconds.
- */
-static const unsigned int ts_clock_period[TS_CONFIG_MAX_CLK_SRC + 1] = {
-	1,			/* 1 nanosecond (but with 20 ns granularity). */
-	1000,			/* 1 microsecond. */
-	1000000,		/* 1 millisecond. */
-};
-
-struct dio200_subdev_8255 {
-	unsigned int ofs;		/* DIO base offset */
-};
-
-struct dio200_subdev_intr {
-	spinlock_t spinlock;
-	unsigned int ofs;
-	unsigned int valid_isns;
-	unsigned int enabled_isns;
-	bool active:1;
-};
-
-static unsigned char dio200_read8(struct comedi_device *dev,
-				  unsigned int offset)
-{
-	const struct dio200_board *board = dev->board_ptr;
-
-	if (board->is_pcie)
-		offset <<= 3;
-
-	if (dev->mmio)
-		return readb(dev->mmio + offset);
-	return inb(dev->iobase + offset);
-}
-
-static void dio200_write8(struct comedi_device *dev,
-			  unsigned int offset, unsigned char val)
-{
-	const struct dio200_board *board = dev->board_ptr;
-
-	if (board->is_pcie)
-		offset <<= 3;
-
-	if (dev->mmio)
-		writeb(val, dev->mmio + offset);
-	else
-		outb(val, dev->iobase + offset);
-}
-
-static unsigned int dio200_read32(struct comedi_device *dev,
-				  unsigned int offset)
-{
-	const struct dio200_board *board = dev->board_ptr;
-
-	if (board->is_pcie)
-		offset <<= 3;
-
-	if (dev->mmio)
-		return readl(dev->mmio + offset);
-	return inl(dev->iobase + offset);
-}
-
-static void dio200_write32(struct comedi_device *dev,
-			   unsigned int offset, unsigned int val)
-{
-	const struct dio200_board *board = dev->board_ptr;
-
-	if (board->is_pcie)
-		offset <<= 3;
-
-	if (dev->mmio)
-		writel(val, dev->mmio + offset);
-	else
-		outl(val, dev->iobase + offset);
-}
-
-static unsigned int dio200_subdev_8254_offset(struct comedi_device *dev,
-					      struct comedi_subdevice *s)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct comedi_8254 *i8254 = s->private;
-	unsigned int offset;
-
-	/* get the offset that was passed to comedi_8254_*_init() */
-	if (dev->mmio)
-		offset = i8254->mmio - dev->mmio;
-	else
-		offset = i8254->iobase - dev->iobase;
-
-	/* remove the shift that was added for PCIe boards */
-	if (board->is_pcie)
-		offset >>= 3;
-
-	/* this offset now works for the dio200_{read,write} helpers */
-	return offset;
-}
-
-static int dio200_subdev_intr_insn_bits(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_intr *subpriv = s->private;
-
-	if (board->has_int_sce) {
-		/* Just read the interrupt status register.  */
-		data[1] = dio200_read8(dev, subpriv->ofs) & subpriv->valid_isns;
-	} else {
-		/* No interrupt status register. */
-		data[0] = 0;
-	}
-
-	return insn->n;
-}
-
-static void dio200_stop_intr(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_intr *subpriv = s->private;
-
-	subpriv->active = false;
-	subpriv->enabled_isns = 0;
-	if (board->has_int_sce)
-		dio200_write8(dev, subpriv->ofs, 0);
-}
-
-static void dio200_start_intr(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_intr *subpriv = s->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int n;
-	unsigned isn_bits;
-
-	/* Determine interrupt sources to enable. */
-	isn_bits = 0;
-	if (cmd->chanlist) {
-		for (n = 0; n < cmd->chanlist_len; n++)
-			isn_bits |= (1U << CR_CHAN(cmd->chanlist[n]));
-	}
-	isn_bits &= subpriv->valid_isns;
-	/* Enable interrupt sources. */
-	subpriv->enabled_isns = isn_bits;
-	if (board->has_int_sce)
-		dio200_write8(dev, subpriv->ofs, isn_bits);
-}
-
-static int dio200_inttrig_start_intr(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     unsigned int trig_num)
-{
-	struct dio200_subdev_intr *subpriv = s->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned long flags;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	spin_lock_irqsave(&subpriv->spinlock, flags);
-	s->async->inttrig = NULL;
-	if (subpriv->active)
-		dio200_start_intr(dev, s);
-
-	spin_unlock_irqrestore(&subpriv->spinlock, flags);
-
-	return 1;
-}
-
-static void dio200_read_scan_intr(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int triggered)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned short val;
-	unsigned int n, ch;
-
-	val = 0;
-	for (n = 0; n < cmd->chanlist_len; n++) {
-		ch = CR_CHAN(cmd->chanlist[n]);
-		if (triggered & (1U << ch))
-			val |= (1U << n);
-	}
-
-	comedi_buf_write_samples(s, &val, 1);
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg)
-		s->async->events |= COMEDI_CB_EOA;
-}
-
-static int dio200_handle_read_intr(struct comedi_device *dev,
-				   struct comedi_subdevice *s)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_intr *subpriv = s->private;
-	unsigned triggered;
-	unsigned intstat;
-	unsigned cur_enabled;
-	unsigned long flags;
-
-	triggered = 0;
-
-	spin_lock_irqsave(&subpriv->spinlock, flags);
-	if (board->has_int_sce) {
-		/*
-		 * Collect interrupt sources that have triggered and disable
-		 * them temporarily.  Loop around until no extra interrupt
-		 * sources have triggered, at which point, the valid part of
-		 * the interrupt status register will read zero, clearing the
-		 * cause of the interrupt.
-		 *
-		 * Mask off interrupt sources already seen to avoid infinite
-		 * loop in case of misconfiguration.
-		 */
-		cur_enabled = subpriv->enabled_isns;
-		while ((intstat = (dio200_read8(dev, subpriv->ofs) &
-				   subpriv->valid_isns & ~triggered)) != 0) {
-			triggered |= intstat;
-			cur_enabled &= ~triggered;
-			dio200_write8(dev, subpriv->ofs, cur_enabled);
-		}
-	} else {
-		/*
-		 * No interrupt status register.  Assume the single interrupt
-		 * source has triggered.
-		 */
-		triggered = subpriv->enabled_isns;
-	}
-
-	if (triggered) {
-		/*
-		 * Some interrupt sources have triggered and have been
-		 * temporarily disabled to clear the cause of the interrupt.
-		 *
-		 * Reenable them NOW to minimize the time they are disabled.
-		 */
-		cur_enabled = subpriv->enabled_isns;
-		if (board->has_int_sce)
-			dio200_write8(dev, subpriv->ofs, cur_enabled);
-
-		if (subpriv->active) {
-			/*
-			 * The command is still active.
-			 *
-			 * Ignore interrupt sources that the command isn't
-			 * interested in (just in case there's a race
-			 * condition).
-			 */
-			if (triggered & subpriv->enabled_isns) {
-				/* Collect scan data. */
-				dio200_read_scan_intr(dev, s, triggered);
-			}
-		}
-	}
-	spin_unlock_irqrestore(&subpriv->spinlock, flags);
-
-	comedi_handle_events(dev, s);
-
-	return (triggered != 0);
-}
-
-static int dio200_subdev_intr_cancel(struct comedi_device *dev,
-				     struct comedi_subdevice *s)
-{
-	struct dio200_subdev_intr *subpriv = s->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&subpriv->spinlock, flags);
-	if (subpriv->active)
-		dio200_stop_intr(dev, s);
-
-	spin_unlock_irqrestore(&subpriv->spinlock, flags);
-
-	return 0;
-}
-
-static int dio200_subdev_intr_cmdtest(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	/* if (err) return 4; */
-
-	return 0;
-}
-
-static int dio200_subdev_intr_cmd(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	struct dio200_subdev_intr *subpriv = s->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&subpriv->spinlock, flags);
-
-	subpriv->active = true;
-
-	if (cmd->start_src == TRIG_INT)
-		s->async->inttrig = dio200_inttrig_start_intr;
-	else	/* TRIG_NOW */
-		dio200_start_intr(dev, s);
-
-	spin_unlock_irqrestore(&subpriv->spinlock, flags);
-
-	return 0;
-}
-
-static int dio200_subdev_intr_init(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int offset,
-				   unsigned valid_isns)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct dio200_subdev_intr *subpriv;
-
-	subpriv = comedi_alloc_spriv(s, sizeof(*subpriv));
-	if (!subpriv)
-		return -ENOMEM;
-
-	subpriv->ofs = offset;
-	subpriv->valid_isns = valid_isns;
-	spin_lock_init(&subpriv->spinlock);
-
-	if (board->has_int_sce)
-		/* Disable interrupt sources. */
-		dio200_write8(dev, subpriv->ofs, 0);
-
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE | SDF_CMD_READ | SDF_PACKED;
-	if (board->has_int_sce) {
-		s->n_chan = DIO200_MAX_ISNS;
-		s->len_chanlist = DIO200_MAX_ISNS;
-	} else {
-		/* No interrupt source register.  Support single channel. */
-		s->n_chan = 1;
-		s->len_chanlist = 1;
-	}
-	s->range_table = &range_digital;
-	s->maxdata = 1;
-	s->insn_bits = dio200_subdev_intr_insn_bits;
-	s->do_cmdtest = dio200_subdev_intr_cmdtest;
-	s->do_cmd = dio200_subdev_intr_cmd;
-	s->cancel = dio200_subdev_intr_cancel;
-
-	return 0;
-}
-
-static irqreturn_t dio200_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	int handled;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	handled = dio200_handle_read_intr(dev, s);
-
-	return IRQ_RETVAL(handled);
-}
-
-static void dio200_subdev_8254_set_gate_src(struct comedi_device *dev,
-					    struct comedi_subdevice *s,
-					    unsigned int chan,
-					    unsigned int src)
-{
-	unsigned int offset = dio200_subdev_8254_offset(dev, s);
-
-	dio200_write8(dev, DIO200_GAT_SCE(offset >> 3),
-		      gat_sce((offset >> 2) & 1, chan, src));
-}
-
-static void dio200_subdev_8254_set_clock_src(struct comedi_device *dev,
-					     struct comedi_subdevice *s,
-					     unsigned int chan,
-					     unsigned int src)
-{
-	unsigned int offset = dio200_subdev_8254_offset(dev, s);
-
-	dio200_write8(dev, DIO200_CLK_SCE(offset >> 3),
-		      clk_sce((offset >> 2) & 1, chan, src));
-}
-
-static int dio200_subdev_8254_config(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct comedi_8254 *i8254 = s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int max_src = board->is_pcie ? 31 : 7;
-	unsigned int src;
-
-	if (!board->has_clk_gat_sce)
-		return -EINVAL;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SET_GATE_SRC:
-		src = data[2];
-		if (src > max_src)
-			return -EINVAL;
-
-		dio200_subdev_8254_set_gate_src(dev, s, chan, src);
-		i8254->gate_src[chan] = src;
-		break;
-	case INSN_CONFIG_GET_GATE_SRC:
-		data[2] = i8254->gate_src[chan];
-		break;
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		src = data[1];
-		if (src > max_src)
-			return -EINVAL;
-
-		dio200_subdev_8254_set_clock_src(dev, s, chan, src);
-		i8254->clock_src[chan] = src;
-		break;
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		data[1] = i8254->clock_src[chan];
-		data[2] = clock_period[i8254->clock_src[chan]];
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int dio200_subdev_8254_init(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int offset)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct comedi_8254 *i8254;
-	unsigned int regshift;
-	int chan;
-
-	/*
-	 * PCIe boards need the offset shifted in order to get the
-	 * correct base address of the timer.
-	 */
-	if (board->is_pcie) {
-		offset <<= 3;
-		regshift = 3;
-	} else {
-		regshift = 0;
-	}
-
-	if (dev->mmio) {
-		i8254 = comedi_8254_mm_init(dev->mmio + offset,
-					    0, I8254_IO8, regshift);
-	} else {
-		i8254 = comedi_8254_init(dev->iobase + offset,
-					 0, I8254_IO8, regshift);
-	}
-	if (!i8254)
-		return -ENOMEM;
-
-	comedi_8254_subdevice_init(s, i8254);
-
-	i8254->insn_config = dio200_subdev_8254_config;
-
-	/*
-	 * There could be multiple timers so this driver does not
-	 * use dev->pacer to save the i8254 pointer. Instead,
-	 * comedi_8254_subdevice_init() saved the i8254 pointer in
-	 * s->private.  Mark the subdevice as having private data
-	 * to be automatically freed when the device is detached.
-	 */
-	comedi_set_spriv_auto_free(s);
-
-	/* Initialize channels. */
-	if (board->has_clk_gat_sce) {
-		for (chan = 0; chan < 3; chan++) {
-			/* Gate source 0 is VCC (logic 1). */
-			dio200_subdev_8254_set_gate_src(dev, s, chan, 0);
-			/* Clock source 0 is the dedicated clock input. */
-			dio200_subdev_8254_set_clock_src(dev, s, chan, 0);
-		}
-	}
-
-	return 0;
-}
-
-static void dio200_subdev_8255_set_dir(struct comedi_device *dev,
-				       struct comedi_subdevice *s)
-{
-	struct dio200_subdev_8255 *subpriv = s->private;
-	int config;
-
-	config = I8255_CTRL_CW;
-	/* 1 in io_bits indicates output, 1 in config indicates input */
-	if (!(s->io_bits & 0x0000ff))
-		config |= I8255_CTRL_A_IO;
-	if (!(s->io_bits & 0x00ff00))
-		config |= I8255_CTRL_B_IO;
-	if (!(s->io_bits & 0x0f0000))
-		config |= I8255_CTRL_C_LO_IO;
-	if (!(s->io_bits & 0xf00000))
-		config |= I8255_CTRL_C_HI_IO;
-	dio200_write8(dev, subpriv->ofs + I8255_CTRL_REG, config);
-}
-
-static int dio200_subdev_8255_bits(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct dio200_subdev_8255 *subpriv = s->private;
-	unsigned int mask;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0xff) {
-			dio200_write8(dev, subpriv->ofs + I8255_DATA_A_REG,
-				      s->state & 0xff);
-		}
-		if (mask & 0xff00) {
-			dio200_write8(dev, subpriv->ofs + I8255_DATA_B_REG,
-				      (s->state >> 8) & 0xff);
-		}
-		if (mask & 0xff0000) {
-			dio200_write8(dev, subpriv->ofs + I8255_DATA_C_REG,
-				      (s->state >> 16) & 0xff);
-		}
-	}
-
-	val = dio200_read8(dev, subpriv->ofs + I8255_DATA_A_REG);
-	val |= dio200_read8(dev, subpriv->ofs + I8255_DATA_B_REG) << 8;
-	val |= dio200_read8(dev, subpriv->ofs + I8255_DATA_C_REG) << 16;
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int dio200_subdev_8255_config(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x0000ff;
-	else if (chan < 16)
-		mask = 0x00ff00;
-	else if (chan < 20)
-		mask = 0x0f0000;
-	else
-		mask = 0xf00000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	dio200_subdev_8255_set_dir(dev, s);
-
-	return insn->n;
-}
-
-static int dio200_subdev_8255_init(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int offset)
-{
-	struct dio200_subdev_8255 *subpriv;
-
-	subpriv = comedi_alloc_spriv(s, sizeof(*subpriv));
-	if (!subpriv)
-		return -ENOMEM;
-
-	subpriv->ofs = offset;
-
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 24;
-	s->range_table = &range_digital;
-	s->maxdata = 1;
-	s->insn_bits = dio200_subdev_8255_bits;
-	s->insn_config = dio200_subdev_8255_config;
-	dio200_subdev_8255_set_dir(dev, s);
-	return 0;
-}
-
-static int dio200_subdev_timer_read(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	unsigned int n;
-
-	for (n = 0; n < insn->n; n++)
-		data[n] = dio200_read32(dev, DIO200_TS_COUNT);
-	return n;
-}
-
-static void dio200_subdev_timer_reset(struct comedi_device *dev,
-				      struct comedi_subdevice *s)
-{
-	unsigned int clock;
-
-	clock = dio200_read32(dev, DIO200_TS_CONFIG) & TS_CONFIG_CLK_SRC_MASK;
-	dio200_write32(dev, DIO200_TS_CONFIG, clock | TS_CONFIG_RESET);
-	dio200_write32(dev, DIO200_TS_CONFIG, clock);
-}
-
-static void dio200_subdev_timer_get_clock_src(struct comedi_device *dev,
-					      struct comedi_subdevice *s,
-					      unsigned int *src,
-					      unsigned int *period)
-{
-	unsigned int clk;
-
-	clk = dio200_read32(dev, DIO200_TS_CONFIG) & TS_CONFIG_CLK_SRC_MASK;
-	*src = clk;
-	*period = (clk < ARRAY_SIZE(ts_clock_period)) ?
-		  ts_clock_period[clk] : 0;
-}
-
-static int dio200_subdev_timer_set_clock_src(struct comedi_device *dev,
-					     struct comedi_subdevice *s,
-					     unsigned int src)
-{
-	if (src > TS_CONFIG_MAX_CLK_SRC)
-		return -EINVAL;
-	dio200_write32(dev, DIO200_TS_CONFIG, src);
-	return 0;
-}
-
-static int dio200_subdev_timer_config(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	int ret = 0;
-
-	switch (data[0]) {
-	case INSN_CONFIG_RESET:
-		dio200_subdev_timer_reset(dev, s);
-		break;
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		ret = dio200_subdev_timer_set_clock_src(dev, s, data[1]);
-		if (ret < 0)
-			ret = -EINVAL;
-		break;
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		dio200_subdev_timer_get_clock_src(dev, s, &data[1], &data[2]);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-	return ret < 0 ? ret : insn->n;
-}
-
-void amplc_dio200_set_enhance(struct comedi_device *dev, unsigned char val)
-{
-	dio200_write8(dev, DIO200_ENHANCE, val);
-}
-EXPORT_SYMBOL_GPL(amplc_dio200_set_enhance);
-
-int amplc_dio200_common_attach(struct comedi_device *dev, unsigned int irq,
-			       unsigned long req_irq_flags)
-{
-	const struct dio200_board *board = dev->board_ptr;
-	struct comedi_subdevice *s;
-	unsigned int n;
-	int ret;
-
-	ret = comedi_alloc_subdevices(dev, board->n_subdevs);
-	if (ret)
-		return ret;
-
-	for (n = 0; n < dev->n_subdevices; n++) {
-		s = &dev->subdevices[n];
-		switch (board->sdtype[n]) {
-		case sd_8254:
-			/* counter subdevice (8254) */
-			ret = dio200_subdev_8254_init(dev, s,
-						      board->sdinfo[n]);
-			if (ret < 0)
-				return ret;
-			break;
-		case sd_8255:
-			/* digital i/o subdevice (8255) */
-			ret = dio200_subdev_8255_init(dev, s,
-						      board->sdinfo[n]);
-			if (ret < 0)
-				return ret;
-			break;
-		case sd_intr:
-			/* 'INTERRUPT' subdevice */
-			if (irq && !dev->read_subdev) {
-				ret = dio200_subdev_intr_init(dev, s,
-							      DIO200_INT_SCE,
-							      board->sdinfo[n]);
-				if (ret < 0)
-					return ret;
-				dev->read_subdev = s;
-			} else {
-				s->type = COMEDI_SUBD_UNUSED;
-			}
-			break;
-		case sd_timer:
-			s->type		= COMEDI_SUBD_TIMER;
-			s->subdev_flags	= SDF_READABLE | SDF_LSAMPL;
-			s->n_chan	= 1;
-			s->maxdata	= 0xffffffff;
-			s->insn_read	= dio200_subdev_timer_read;
-			s->insn_config	= dio200_subdev_timer_config;
-			break;
-		default:
-			s->type = COMEDI_SUBD_UNUSED;
-			break;
-		}
-	}
-
-	if (irq && dev->read_subdev) {
-		if (request_irq(irq, dio200_interrupt, req_irq_flags,
-				dev->board_name, dev) >= 0) {
-			dev->irq = irq;
-		} else {
-			dev_warn(dev->class_dev,
-				 "warning! irq %u unavailable!\n", irq);
-		}
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(amplc_dio200_common_attach);
-
-static int __init amplc_dio200_common_init(void)
-{
-	return 0;
-}
-module_init(amplc_dio200_common_init);
-
-static void __exit amplc_dio200_common_exit(void)
-{
-}
-module_exit(amplc_dio200_common_exit);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi helper for amplc_dio200 and amplc_dio200_pci");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_dio200_pci.c b/drivers/staging/comedi/drivers/amplc_dio200_pci.c
deleted file mode 100644
index 2598e6e7d47d..000000000000
--- a/drivers/staging/comedi/drivers/amplc_dio200_pci.c
+++ /dev/null
@@ -1,424 +0,0 @@
-/* comedi/drivers/amplc_dio200_pci.c
- *
- * Driver for Amplicon PCI215, PCI272, PCIe215, PCIe236, PCIe296.
- *
- * Copyright (C) 2005-2013 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: amplc_dio200_pci
- * Description: Amplicon 200 Series PCI Digital I/O
- * Author: Ian Abbott <abbotti@mev.co.uk>
- * Devices: [Amplicon] PCI215 (amplc_dio200_pci), PCIe215, PCIe236,
- *   PCI272, PCIe296
- * Updated: Mon, 18 Mar 2013 15:03:50 +0000
- * Status: works
- *
- * Configuration options:
- *   none
- *
- * Manual configuration of PCI(e) cards is not supported; they are configured
- * automatically.
- *
- * SUBDEVICES
- *
- *                     PCI215         PCIe215        PCIe236
- *                  -------------  -------------  -------------
- *   Subdevices           5              8              8
- *    0                 PPI-X          PPI-X          PPI-X
- *    1                 PPI-Y          UNUSED         UNUSED
- *    2                 CTR-Z1         PPI-Y          UNUSED
- *    3                 CTR-Z2         UNUSED         UNUSED
- *    4               INTERRUPT        CTR-Z1         CTR-Z1
- *    5                                CTR-Z2         CTR-Z2
- *    6                                TIMER          TIMER
- *    7                              INTERRUPT      INTERRUPT
- *
- *
- *                     PCI272         PCIe296
- *                  -------------  -------------
- *   Subdevices           4              8
- *    0                 PPI-X          PPI-X1
- *    1                 PPI-Y          PPI-X2
- *    2                 PPI-Z          PPI-Y1
- *    3               INTERRUPT        PPI-Y2
- *    4                                CTR-Z1
- *    5                                CTR-Z2
- *    6                                TIMER
- *    7                              INTERRUPT
- *
- * Each PPI is a 8255 chip providing 24 DIO channels.  The DIO channels
- * are configurable as inputs or outputs in four groups:
- *
- *   Port A  - channels  0 to  7
- *   Port B  - channels  8 to 15
- *   Port CL - channels 16 to 19
- *   Port CH - channels 20 to 23
- *
- * Only mode 0 of the 8255 chips is supported.
- *
- * Each CTR is a 8254 chip providing 3 16-bit counter channels.  Each
- * channel is configured individually with INSN_CONFIG instructions.  The
- * specific type of configuration instruction is specified in data[0].
- * Some configuration instructions expect an additional parameter in
- * data[1]; others return a value in data[1].  The following configuration
- * instructions are supported:
- *
- *   INSN_CONFIG_SET_COUNTER_MODE.  Sets the counter channel's mode and
- *     BCD/binary setting specified in data[1].
- *
- *   INSN_CONFIG_8254_READ_STATUS.  Reads the status register value for the
- *     counter channel into data[1].
- *
- *   INSN_CONFIG_SET_CLOCK_SRC.  Sets the counter channel's clock source as
- *     specified in data[1] (this is a hardware-specific value).  Not
- *     supported on PC214E.  For the other boards, valid clock sources are
- *     0 to 7 as follows:
- *
- *       0.  CLK n, the counter channel's dedicated CLK input from the SK1
- *         connector.  (N.B. for other values, the counter channel's CLKn
- *         pin on the SK1 connector is an output!)
- *       1.  Internal 10 MHz clock.
- *       2.  Internal 1 MHz clock.
- *       3.  Internal 100 kHz clock.
- *       4.  Internal 10 kHz clock.
- *       5.  Internal 1 kHz clock.
- *       6.  OUT n-1, the output of counter channel n-1 (see note 1 below).
- *       7.  Ext Clock, the counter chip's dedicated Ext Clock input from
- *         the SK1 connector.  This pin is shared by all three counter
- *         channels on the chip.
- *
- *     For the PCIe boards, clock sources in the range 0 to 31 are allowed
- *     and the following additional clock sources are defined:
- *
- *       8.  HIGH logic level.
- *       9.  LOW logic level.
- *      10.  "Pattern present" signal.
- *      11.  Internal 20 MHz clock.
- *
- *   INSN_CONFIG_GET_CLOCK_SRC.  Returns the counter channel's current
- *     clock source in data[1].  For internal clock sources, data[2] is set
- *     to the period in ns.
- *
- *   INSN_CONFIG_SET_GATE_SRC.  Sets the counter channel's gate source as
- *     specified in data[2] (this is a hardware-specific value).  Not
- *     supported on PC214E.  For the other boards, valid gate sources are 0
- *     to 7 as follows:
- *
- *       0.  VCC (internal +5V d.c.), i.e. gate permanently enabled.
- *       1.  GND (internal 0V d.c.), i.e. gate permanently disabled.
- *       2.  GAT n, the counter channel's dedicated GAT input from the SK1
- *         connector.  (N.B. for other values, the counter channel's GATn
- *         pin on the SK1 connector is an output!)
- *       3.  /OUT n-2, the inverted output of counter channel n-2 (see note
- *         2 below).
- *       4.  Reserved.
- *       5.  Reserved.
- *       6.  Reserved.
- *       7.  Reserved.
- *
- *     For the PCIe boards, gate sources in the range 0 to 31 are allowed;
- *     the following additional clock sources and clock sources 6 and 7 are
- *     (re)defined:
- *
- *       6.  /GAT n, negated version of the counter channel's dedicated
- *         GAT input (negated version of gate source 2).
- *       7.  OUT n-2, the non-inverted output of counter channel n-2
- *         (negated version of gate source 3).
- *       8.  "Pattern present" signal, HIGH while pattern present.
- *       9.  "Pattern occurred" latched signal, latches HIGH when pattern
- *         occurs.
- *      10.  "Pattern gone away" latched signal, latches LOW when pattern
- *         goes away after it occurred.
- *      11.  Negated "pattern present" signal, LOW while pattern present
- *         (negated version of gate source 8).
- *      12.  Negated "pattern occurred" latched signal, latches LOW when
- *         pattern occurs (negated version of gate source 9).
- *      13.  Negated "pattern gone away" latched signal, latches LOW when
- *         pattern goes away after it occurred (negated version of gate
- *         source 10).
- *
- *   INSN_CONFIG_GET_GATE_SRC.  Returns the counter channel's current gate
- *     source in data[2].
- *
- * Clock and gate interconnection notes:
- *
- *   1.  Clock source OUT n-1 is the output of the preceding channel on the
- *   same counter subdevice if n > 0, or the output of channel 2 on the
- *   preceding counter subdevice (see note 3) if n = 0.
- *
- *   2.  Gate source /OUT n-2 is the inverted output of channel 0 on the
- *   same counter subdevice if n = 2, or the inverted output of channel n+1
- *   on the preceding counter subdevice (see note 3) if n < 2.
- *
- *   3.  The counter subdevices are connected in a ring, so the highest
- *   counter subdevice precedes the lowest.
- *
- * The 'TIMER' subdevice is a free-running 32-bit timer subdevice.
- *
- * The 'INTERRUPT' subdevice pretends to be a digital input subdevice.  The
- * digital inputs come from the interrupt status register.  The number of
- * channels matches the number of interrupt sources.  The PC214E does not
- * have an interrupt status register; see notes on 'INTERRUPT SOURCES'
- * below.
- *
- * INTERRUPT SOURCES
- *
- *                     PCI215         PCIe215        PCIe236
- *                  -------------  -------------  -------------
- *   Sources              6              6              6
- *    0               PPI-X-C0       PPI-X-C0       PPI-X-C0
- *    1               PPI-X-C3       PPI-X-C3       PPI-X-C3
- *    2               PPI-Y-C0       PPI-Y-C0        unused
- *    3               PPI-Y-C3       PPI-Y-C3        unused
- *    4              CTR-Z1-OUT1    CTR-Z1-OUT1    CTR-Z1-OUT1
- *    5              CTR-Z2-OUT1    CTR-Z2-OUT1    CTR-Z2-OUT1
- *
- *                     PCI272         PCIe296
- *                  -------------  -------------
- *   Sources              6              6
- *    0               PPI-X-C0       PPI-X1-C0
- *    1               PPI-X-C3       PPI-X1-C3
- *    2               PPI-Y-C0       PPI-Y1-C0
- *    3               PPI-Y-C3       PPI-Y1-C3
- *    4               PPI-Z-C0      CTR-Z1-OUT1
- *    5               PPI-Z-C3      CTR-Z2-OUT1
- *
- * When an interrupt source is enabled in the interrupt source enable
- * register, a rising edge on the source signal latches the corresponding
- * bit to 1 in the interrupt status register.
- *
- * When the interrupt status register value as a whole (actually, just the
- * 6 least significant bits) goes from zero to non-zero, the board will
- * generate an interrupt.  The interrupt will remain asserted until the
- * interrupt status register is cleared to zero.  To clear a bit to zero in
- * the interrupt status register, the corresponding interrupt source must
- * be disabled in the interrupt source enable register (there is no
- * separate interrupt clear register).
- *
- * COMMANDS
- *
- * The driver supports a read streaming acquisition command on the
- * 'INTERRUPT' subdevice.  The channel list selects the interrupt sources
- * to be enabled.  All channels will be sampled together (convert_src ==
- * TRIG_NOW).  The scan begins a short time after the hardware interrupt
- * occurs, subject to interrupt latencies (scan_begin_src == TRIG_EXT,
- * scan_begin_arg == 0).  The value read from the interrupt status register
- * is packed into a short value, one bit per requested channel, in the
- * order they appear in the channel list.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "amplc_dio200.h"
-
-/*
- * Board descriptions.
- */
-
-enum dio200_pci_model {
-	pci215_model,
-	pci272_model,
-	pcie215_model,
-	pcie236_model,
-	pcie296_model
-};
-
-static const struct dio200_board dio200_pci_boards[] = {
-	[pci215_model] = {
-		.name		= "pci215",
-		.mainbar	= 2,
-		.n_subdevs	= 5,
-		.sdtype		= {
-			sd_8255, sd_8255, sd_8254, sd_8254, sd_intr
-		},
-		.sdinfo		= { 0x00, 0x08, 0x10, 0x14, 0x3f },
-		.has_int_sce	= true,
-		.has_clk_gat_sce = true,
-	},
-	[pci272_model] = {
-		.name		= "pci272",
-		.mainbar	= 2,
-		.n_subdevs	= 4,
-		.sdtype		= {
-			sd_8255, sd_8255, sd_8255, sd_intr
-		},
-		.sdinfo		= { 0x00, 0x08, 0x10, 0x3f },
-		.has_int_sce	= true,
-	},
-	[pcie215_model] = {
-		.name		= "pcie215",
-		.mainbar	= 1,
-		.n_subdevs	= 8,
-		.sdtype		= {
-			sd_8255, sd_none, sd_8255, sd_none,
-			sd_8254, sd_8254, sd_timer, sd_intr
-		},
-		.sdinfo		= {
-			0x00, 0x00, 0x08, 0x00, 0x10, 0x14, 0x00, 0x3f
-		},
-		.has_int_sce	= true,
-		.has_clk_gat_sce = true,
-		.is_pcie	= true,
-	},
-	[pcie236_model] = {
-		.name		= "pcie236",
-		.mainbar	= 1,
-		.n_subdevs	= 8,
-		.sdtype		= {
-			sd_8255, sd_none, sd_none, sd_none,
-			sd_8254, sd_8254, sd_timer, sd_intr
-		},
-		.sdinfo		= {
-			0x00, 0x00, 0x00, 0x00, 0x10, 0x14, 0x00, 0x3f
-		},
-		.has_int_sce	= true,
-		.has_clk_gat_sce = true,
-		.is_pcie	= true,
-	},
-	[pcie296_model] = {
-		.name		= "pcie296",
-		.mainbar	= 1,
-		.n_subdevs	= 8,
-		.sdtype		= {
-			sd_8255, sd_8255, sd_8255, sd_8255,
-			sd_8254, sd_8254, sd_timer, sd_intr
-		},
-		.sdinfo		= {
-			0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, 0x00, 0x3f
-		},
-		.has_int_sce	= true,
-		.has_clk_gat_sce = true,
-		.is_pcie	= true,
-	},
-};
-
-/*
- * This function does some special set-up for the PCIe boards
- * PCIe215, PCIe236, PCIe296.
- */
-static int dio200_pcie_board_setup(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	void __iomem *brbase;
-
-	/*
-	 * The board uses Altera Cyclone IV with PCI-Express hard IP.
-	 * The FPGA configuration has the PCI-Express Avalon-MM Bridge
-	 * Control registers in PCI BAR 0, offset 0, and the length of
-	 * these registers is 0x4000.
-	 *
-	 * We need to write 0x80 to the "Avalon-MM to PCI-Express Interrupt
-	 * Enable" register at offset 0x50 to allow generation of PCIe
-	 * interrupts when RXmlrq_i is asserted in the SOPC Builder system.
-	 */
-	if (pci_resource_len(pcidev, 0) < 0x4000) {
-		dev_err(dev->class_dev, "error! bad PCI region!\n");
-		return -EINVAL;
-	}
-	brbase = pci_ioremap_bar(pcidev, 0);
-	if (!brbase) {
-		dev_err(dev->class_dev, "error! failed to map registers!\n");
-		return -ENOMEM;
-	}
-	writel(0x80, brbase + 0x50);
-	iounmap(brbase);
-	/* Enable "enhanced" features of board. */
-	amplc_dio200_set_enhance(dev, 1);
-	return 0;
-}
-
-static int dio200_pci_auto_attach(struct comedi_device *dev,
-				  unsigned long context_model)
-{
-	struct pci_dev *pci_dev = comedi_to_pci_dev(dev);
-	const struct dio200_board *board = NULL;
-	unsigned int bar;
-	int ret;
-
-	if (context_model < ARRAY_SIZE(dio200_pci_boards))
-		board = &dio200_pci_boards[context_model];
-	if (!board)
-		return -EINVAL;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	dev_info(dev->class_dev, "%s: attach pci %s (%s)\n",
-		 dev->driver->driver_name, pci_name(pci_dev), dev->board_name);
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	bar = board->mainbar;
-	if (pci_resource_flags(pci_dev, bar) & IORESOURCE_MEM) {
-		dev->mmio = pci_ioremap_bar(pci_dev, bar);
-		if (!dev->mmio) {
-			dev_err(dev->class_dev,
-				"error! cannot remap registers\n");
-			return -ENOMEM;
-		}
-	} else {
-		dev->iobase = pci_resource_start(pci_dev, bar);
-	}
-
-	if (board->is_pcie) {
-		ret = dio200_pcie_board_setup(dev);
-		if (ret < 0)
-			return ret;
-	}
-
-	return amplc_dio200_common_attach(dev, pci_dev->irq, IRQF_SHARED);
-}
-
-static struct comedi_driver dio200_pci_comedi_driver = {
-	.driver_name	= "amplc_dio200_pci",
-	.module		= THIS_MODULE,
-	.auto_attach	= dio200_pci_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static const struct pci_device_id dio200_pci_table[] = {
-	{ PCI_VDEVICE(AMPLICON, 0x000b), pci215_model },
-	{ PCI_VDEVICE(AMPLICON, 0x000a), pci272_model },
-	{ PCI_VDEVICE(AMPLICON, 0x0011), pcie236_model },
-	{ PCI_VDEVICE(AMPLICON, 0x0012), pcie215_model },
-	{ PCI_VDEVICE(AMPLICON, 0x0014), pcie296_model },
-	{0}
-};
-
-MODULE_DEVICE_TABLE(pci, dio200_pci_table);
-
-static int dio200_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &dio200_pci_comedi_driver,
-				      id->driver_data);
-}
-
-static struct pci_driver dio200_pci_pci_driver = {
-	.name		= "amplc_dio200_pci",
-	.id_table	= dio200_pci_table,
-	.probe		= dio200_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(dio200_pci_comedi_driver, dio200_pci_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon 200 Series PCI(e) DIO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c
deleted file mode 100644
index 875cc19cb969..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pc236.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * comedi/drivers/amplc_pc236.c
- * Driver for Amplicon PC36AT DIO boards.
- *
- * Copyright (C) 2002 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-/*
- * Driver: amplc_pc236
- * Description: Amplicon PC36AT
- * Author: Ian Abbott <abbotti@mev.co.uk>
- * Devices: [Amplicon] PC36AT (pc36at)
- * Updated: Fri, 25 Jul 2014 15:32:40 +0000
- * Status: works
- *
- * Configuration options - PC36AT:
- *   [0] - I/O port base address
- *   [1] - IRQ (optional)
- *
- * The PC36AT board has a single 8255 appearing as subdevice 0.
- *
- * Subdevice 1 pretends to be a digital input device, but it always returns
- * 0 when read. However, if you run a command with scan_begin_src=TRIG_EXT,
- * a rising edge on port C bit 3 acts as an external trigger, which can be
- * used to wake up tasks.  This is like the comedi_parport device, but the
- * only way to physically disable the interrupt on the PC36AT is to remove
- * the IRQ jumper.  If no interrupt is connected, then subdevice 1 is
- * unused.
- */
-
-#include <linux/module.h>
-
-#include "../comedidev.h"
-
-#include "amplc_pc236.h"
-
-static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct pc236_private *devpriv;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x4);
-	if (ret)
-		return ret;
-
-	return amplc_pc236_common_attach(dev, dev->iobase, it->options[1], 0);
-}
-
-static const struct pc236_board pc236_boards[] = {
-	{
-		.name = "pc36at",
-	},
-};
-
-static struct comedi_driver amplc_pc236_driver = {
-	.driver_name = "amplc_pc236",
-	.module = THIS_MODULE,
-	.attach = pc236_attach,
-	.detach = comedi_legacy_detach,
-	.board_name = &pc236_boards[0].name,
-	.offset = sizeof(struct pc236_board),
-	.num_names = ARRAY_SIZE(pc236_boards),
-};
-
-module_comedi_driver(amplc_pc236_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon PC36AT DIO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.h b/drivers/staging/comedi/drivers/amplc_pc236.h
deleted file mode 100644
index 91d6d9c065b5..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pc236.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * comedi/drivers/amplc_pc236.h
- * Header for "amplc_pc236", "amplc_pci236" and "amplc_pc236_common".
- *
- * Copyright (C) 2002-2014 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef AMPLC_PC236_H_INCLUDED
-#define AMPLC_PC236_H_INCLUDED
-
-#include <linux/types.h>
-
-struct comedi_device;
-
-struct pc236_board {
-	const char *name;
-	void (*intr_update_cb)(struct comedi_device *dev, bool enable);
-	bool (*intr_chk_clr_cb)(struct comedi_device *dev);
-};
-
-struct pc236_private {
-	unsigned long lcr_iobase; /* PLX PCI9052 config registers in PCIBAR1 */
-	bool enable_irq;
-};
-
-int amplc_pc236_common_attach(struct comedi_device *dev, unsigned long iobase,
-			      unsigned int irq, unsigned long req_irq_flags);
-
-#endif
diff --git a/drivers/staging/comedi/drivers/amplc_pc236_common.c b/drivers/staging/comedi/drivers/amplc_pc236_common.c
deleted file mode 100644
index 0c02d3245679..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pc236_common.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * comedi/drivers/amplc_pc236_common.c
- * Common support code for "amplc_pc236" and "amplc_pci236".
- *
- * Copyright (C) 2002-2014 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#include "amplc_pc236.h"
-#include "8255.h"
-
-static void pc236_intr_update(struct comedi_device *dev, bool enable)
-{
-	const struct pc236_board *board = dev->board_ptr;
-	struct pc236_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->enable_irq = enable;
-	if (board->intr_update_cb)
-		board->intr_update_cb(dev, enable);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-/*
- * This function is called when an interrupt occurs to check whether
- * the interrupt has been marked as enabled and was generated by the
- * board.  If so, the function prepares the hardware for the next
- * interrupt.
- * Returns false if the interrupt should be ignored.
- */
-static bool pc236_intr_check(struct comedi_device *dev)
-{
-	const struct pc236_board *board = dev->board_ptr;
-	struct pc236_private *devpriv = dev->private;
-	bool retval = false;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	if (devpriv->enable_irq) {
-		if (board->intr_chk_clr_cb)
-			retval = board->intr_chk_clr_cb(dev);
-		else
-			retval = true;
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return retval;
-}
-
-static int pc236_intr_insn(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_insn *insn,
-			   unsigned int *data)
-{
-	data[1] = 0;
-	return insn->n;
-}
-
-static int pc236_intr_cmdtest(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check it arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int pc236_intr_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	pc236_intr_update(dev, true);
-
-	return 0;
-}
-
-static int pc236_intr_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	pc236_intr_update(dev, false);
-
-	return 0;
-}
-
-static irqreturn_t pc236_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	bool handled;
-
-	handled = pc236_intr_check(dev);
-	if (dev->attached && handled) {
-		comedi_buf_write_samples(s, &s->state, 1);
-		comedi_handle_events(dev, s);
-	}
-	return IRQ_RETVAL(handled);
-}
-
-int amplc_pc236_common_attach(struct comedi_device *dev, unsigned long iobase,
-			      unsigned int irq, unsigned long req_irq_flags)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	dev->iobase = iobase;
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* digital i/o subdevice (8255) */
-	ret = subdev_8255_init(dev, s, NULL, 0x00);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[1];
-	dev->read_subdev = s;
-	s->type = COMEDI_SUBD_UNUSED;
-	pc236_intr_update(dev, false);
-	if (irq) {
-		if (request_irq(irq, pc236_interrupt, req_irq_flags,
-				dev->board_name, dev) >= 0) {
-			dev->irq = irq;
-			s->type = COMEDI_SUBD_DI;
-			s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
-			s->n_chan = 1;
-			s->maxdata = 1;
-			s->range_table = &range_digital;
-			s->insn_bits = pc236_intr_insn;
-			s->len_chanlist	= 1;
-			s->do_cmdtest = pc236_intr_cmdtest;
-			s->do_cmd = pc236_intr_cmd;
-			s->cancel = pc236_intr_cancel;
-		}
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(amplc_pc236_common_attach);
-
-static int __init amplc_pc236_common_init(void)
-{
-	return 0;
-}
-module_init(amplc_pc236_common_init);
-
-static void __exit amplc_pc236_common_exit(void)
-{
-}
-module_exit(amplc_pc236_common_exit);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi helper for amplc_pc236 and amplc_pci236");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c
deleted file mode 100644
index b1946ce6ecc1..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pc263.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
-    comedi/drivers/amplc_pc263.c
-    Driver for Amplicon PC263 and PCI263 relay boards.
-
-    Copyright (C) 2002 MEV Ltd. <http://www.mev.co.uk/>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: amplc_pc263
-Description: Amplicon PC263
-Author: Ian Abbott <abbotti@mev.co.uk>
-Devices: [Amplicon] PC263 (pc263)
-Updated: Fri, 12 Apr 2013 15:19:36 +0100
-Status: works
-
-Configuration options:
-  [0] - I/O port base address
-
-The board appears as one subdevice, with 16 digital outputs, each
-connected to a reed-relay. Relay contacts are closed when output is 1.
-The state of the outputs can be read.
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-/* PC263 registers */
-
-/*
- * Board descriptions for Amplicon PC263.
- */
-
-struct pc263_board {
-	const char *name;
-};
-
-static const struct pc263_board pc263_boards[] = {
-	{
-		.name = "pc263",
-	},
-};
-
-static int pc263_do_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		outb(s->state & 0xff, dev->iobase);
-		outb((s->state >> 8) & 0xff, dev->iobase + 1);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x2);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* digital output subdevice */
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = pc263_do_insn_bits;
-	/* read initial relay state */
-	s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8);
-
-	return 0;
-}
-
-static struct comedi_driver amplc_pc263_driver = {
-	.driver_name = "amplc_pc263",
-	.module = THIS_MODULE,
-	.attach = pc263_attach,
-	.detach = comedi_legacy_detach,
-	.board_name = &pc263_boards[0].name,
-	.offset = sizeof(struct pc263_board),
-	.num_names = ARRAY_SIZE(pc263_boards),
-};
-
-module_comedi_driver(amplc_pc263_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon PC263 relay board");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
deleted file mode 100644
index b2f7679a0116..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ /dev/null
@@ -1,1136 +0,0 @@
-/*
- * comedi/drivers/amplc_pci224.c
- * Driver for Amplicon PCI224 and PCI234 AO boards.
- *
- * Copyright (C) 2005 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: amplc_pci224
- * Description: Amplicon PCI224, PCI234
- * Author: Ian Abbott <abbotti@mev.co.uk>
- * Devices: [Amplicon] PCI224 (amplc_pci224), PCI234
- * Updated: Thu, 31 Jul 2014 11:08:03 +0000
- * Status: works, but see caveats
- *
- * Supports:
- *
- *   - ao_insn read/write
- *   - ao_do_cmd mode with the following sources:
- *
- *     - start_src         TRIG_INT        TRIG_EXT
- *     - scan_begin_src    TRIG_TIMER      TRIG_EXT
- *     - convert_src       TRIG_NOW
- *     - scan_end_src      TRIG_COUNT
- *     - stop_src          TRIG_COUNT      TRIG_EXT        TRIG_NONE
- *
- *     The channel list must contain at least one channel with no repeated
- *     channels.  The scan end count must equal the number of channels in
- *     the channel list.
- *
- *     There is only one external trigger source so only one of start_src,
- *     scan_begin_src or stop_src may use TRIG_EXT.
- *
- * Configuration options:
- *   none
- *
- * Manual configuration of PCI cards is not supported; they are configured
- * automatically.
- *
- * Output range selection - PCI224:
- *
- *   Output ranges on PCI224 are partly software-selectable and partly
- *   hardware-selectable according to jumper LK1.  All channels are set
- *   to the same range:
- *
- *   - LK1 position 1-2 (factory default) corresponds to the following
- *     comedi ranges:
- *
- *       0: [-10V,+10V]; 1: [-5V,+5V]; 2: [-2.5V,+2.5V], 3: [-1.25V,+1.25V],
- *       4: [0,+10V],    5: [0,+5V],   6: [0,+2.5V],     7: [0,+1.25V]
- *
- *   - LK1 position 2-3 corresponds to the following Comedi ranges, using
- *     an external voltage reference:
- *
- *       0: [-Vext,+Vext],
- *       1: [0,+Vext]
- *
- * Output range selection - PCI234:
- *
- *   Output ranges on PCI234 are hardware-selectable according to jumper
- *   LK1 which affects all channels, and jumpers LK2, LK3, LK4 and LK5
- *   which affect channels 0, 1, 2 and 3 individually.  LK1 chooses between
- *   an internal 5V reference and an external voltage reference (Vext).
- *   LK2/3/4/5 choose (per channel) to double the reference or not according
- *   to the following table:
- *
- *     LK1 position   LK2/3/4/5 pos  Comedi range
- *     -------------  -------------  --------------
- *     2-3 (factory)  1-2 (factory)  0: [-10V,+10V]
- *     2-3 (factory)  2-3            1: [-5V,+5V]
- *     1-2            1-2 (factory)  2: [-2*Vext,+2*Vext]
- *     1-2            2-3            3: [-Vext,+Vext]
- *
- * Caveats:
- *
- *   1) All channels on the PCI224 share the same range.  Any change to the
- *      range as a result of insn_write or a streaming command will affect
- *      the output voltages of all channels, including those not specified
- *      by the instruction or command.
- *
- *   2) For the analog output command,  the first scan may be triggered
- *      falsely at the start of acquisition.  This occurs when the DAC scan
- *      trigger source is switched from 'none' to 'timer' (scan_begin_src =
- *      TRIG_TIMER) or 'external' (scan_begin_src == TRIG_EXT) at the start
- *      of acquisition and the trigger source is at logic level 1 at the
- *      time of the switch.  This is very likely for TRIG_TIMER.  For
- *      TRIG_EXT, it depends on the state of the external line and whether
- *      the CR_INVERT flag has been set.  The remaining scans are triggered
- *      correctly.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-#include "../comedi_pci.h"
-
-#include "comedi_8254.h"
-
-/*
- * PCI224/234 i/o space 1 (PCIBAR2) registers.
- */
-#define PCI224_Z2_BASE	0x14	/* 82C54 counter/timer */
-#define PCI224_ZCLK_SCE	0x1A	/* Group Z Clock Configuration Register */
-#define PCI224_ZGAT_SCE	0x1D	/* Group Z Gate Configuration Register */
-#define PCI224_INT_SCE	0x1E	/* ISR Interrupt source mask register */
-				/* /Interrupt status */
-
-/*
- * PCI224/234 i/o space 2 (PCIBAR3) 16-bit registers.
- */
-#define PCI224_DACDATA	0x00	/* (w-o) DAC FIFO data. */
-#define PCI224_SOFTTRIG	0x00	/* (r-o) DAC software scan trigger. */
-#define PCI224_DACCON	0x02	/* (r/w) DAC status/configuration. */
-#define PCI224_FIFOSIZ	0x04	/* (w-o) FIFO size for wraparound mode. */
-#define PCI224_DACCEN	0x06	/* (w-o) DAC channel enable register. */
-
-/*
- * DACCON values.
- */
-/* (r/w) Scan trigger. */
-#define PCI224_DACCON_TRIG_MASK		(7 << 0)
-#define PCI224_DACCON_TRIG_NONE		(0 << 0)	/* none */
-#define PCI224_DACCON_TRIG_SW		(1 << 0)	/* software trig */
-#define PCI224_DACCON_TRIG_EXTP		(2 << 0)	/* ext +ve edge */
-#define PCI224_DACCON_TRIG_EXTN		(3 << 0)	/* ext -ve edge */
-#define PCI224_DACCON_TRIG_Z2CT0	(4 << 0)	/* Z2 CT0 out */
-#define PCI224_DACCON_TRIG_Z2CT1	(5 << 0)	/* Z2 CT1 out */
-#define PCI224_DACCON_TRIG_Z2CT2	(6 << 0)	/* Z2 CT2 out */
-/* (r/w) Polarity (PCI224 only, PCI234 always bipolar!). */
-#define PCI224_DACCON_POLAR_MASK	(1 << 3)
-#define PCI224_DACCON_POLAR_UNI		(0 << 3)	/* range [0,Vref] */
-#define PCI224_DACCON_POLAR_BI		(1 << 3)	/* range [-Vref,Vref] */
-/* (r/w) Internal Vref (PCI224 only, when LK1 in position 1-2). */
-#define PCI224_DACCON_VREF_MASK		(3 << 4)
-#define PCI224_DACCON_VREF_1_25		(0 << 4)	/* Vref = 1.25V */
-#define PCI224_DACCON_VREF_2_5		(1 << 4)	/* Vref = 2.5V */
-#define PCI224_DACCON_VREF_5		(2 << 4)	/* Vref = 5V */
-#define PCI224_DACCON_VREF_10		(3 << 4)	/* Vref = 10V */
-/* (r/w) Wraparound mode enable (to play back stored waveform). */
-#define PCI224_DACCON_FIFOWRAP		(1 << 7)
-/* (r/w) FIFO enable.  It MUST be set! */
-#define PCI224_DACCON_FIFOENAB		(1 << 8)
-/* (r/w) FIFO interrupt trigger level (most values are not very useful). */
-#define PCI224_DACCON_FIFOINTR_MASK	(7 << 9)
-#define PCI224_DACCON_FIFOINTR_EMPTY	(0 << 9)	/* when empty */
-#define PCI224_DACCON_FIFOINTR_NEMPTY	(1 << 9)	/* when not empty */
-#define PCI224_DACCON_FIFOINTR_NHALF	(2 << 9)	/* when not half full */
-#define PCI224_DACCON_FIFOINTR_HALF	(3 << 9)	/* when half full */
-#define PCI224_DACCON_FIFOINTR_NFULL	(4 << 9)	/* when not full */
-#define PCI224_DACCON_FIFOINTR_FULL	(5 << 9)	/* when full */
-/* (r-o) FIFO fill level. */
-#define PCI224_DACCON_FIFOFL_MASK	(7 << 12)
-#define PCI224_DACCON_FIFOFL_EMPTY	(1 << 12)	/* 0 */
-#define PCI224_DACCON_FIFOFL_ONETOHALF	(0 << 12)	/* [1,2048] */
-#define PCI224_DACCON_FIFOFL_HALFTOFULL	(4 << 12)	/* [2049,4095] */
-#define PCI224_DACCON_FIFOFL_FULL	(6 << 12)	/* 4096 */
-/* (r-o) DAC busy flag. */
-#define PCI224_DACCON_BUSY		(1 << 15)
-/* (w-o) FIFO reset. */
-#define PCI224_DACCON_FIFORESET		(1 << 12)
-/* (w-o) Global reset (not sure what it does). */
-#define PCI224_DACCON_GLOBALRESET	(1 << 13)
-
-/*
- * DAC FIFO size.
- */
-#define PCI224_FIFO_SIZE	4096
-
-/*
- * DAC FIFO guaranteed minimum room available, depending on reported fill level.
- * The maximum room available depends on the reported fill level and how much
- * has been written!
- */
-#define PCI224_FIFO_ROOM_EMPTY		PCI224_FIFO_SIZE
-#define PCI224_FIFO_ROOM_ONETOHALF	(PCI224_FIFO_SIZE / 2)
-#define PCI224_FIFO_ROOM_HALFTOFULL	1
-#define PCI224_FIFO_ROOM_FULL		0
-
-/*
- * Counter/timer clock input configuration sources.
- */
-#define CLK_CLK		0	/* reserved (channel-specific clock) */
-#define CLK_10MHZ	1	/* internal 10 MHz clock */
-#define CLK_1MHZ	2	/* internal 1 MHz clock */
-#define CLK_100KHZ	3	/* internal 100 kHz clock */
-#define CLK_10KHZ	4	/* internal 10 kHz clock */
-#define CLK_1KHZ	5	/* internal 1 kHz clock */
-#define CLK_OUTNM1	6	/* output of channel-1 modulo total */
-#define CLK_EXT		7	/* external clock */
-/* Macro to construct clock input configuration register value. */
-#define CLK_CONFIG(chan, src)	((((chan) & 3) << 3) | ((src) & 7))
-
-/*
- * Counter/timer gate input configuration sources.
- */
-#define GAT_VCC		0	/* VCC (i.e. enabled) */
-#define GAT_GND		1	/* GND (i.e. disabled) */
-#define GAT_EXT		2	/* reserved (external gate input) */
-#define GAT_NOUTNM2	3	/* inverted output of channel-2 modulo total */
-/* Macro to construct gate input configuration register value. */
-#define GAT_CONFIG(chan, src)	((((chan) & 3) << 3) | ((src) & 7))
-
-/*
- * Summary of CLK_OUTNM1 and GAT_NOUTNM2 connections for PCI224 and PCI234:
- *
- *              Channel's       Channel's
- *              clock input     gate input
- * Channel      CLK_OUTNM1      GAT_NOUTNM2
- * -------      ----------      -----------
- * Z2-CT0       Z2-CT2-OUT      /Z2-CT1-OUT
- * Z2-CT1       Z2-CT0-OUT      /Z2-CT2-OUT
- * Z2-CT2       Z2-CT1-OUT      /Z2-CT0-OUT
- */
-
-/*
- * Interrupt enable/status bits
- */
-#define PCI224_INTR_EXT		0x01	/* rising edge on external input */
-#define PCI224_INTR_DAC		0x04	/* DAC (FIFO) interrupt */
-#define PCI224_INTR_Z2CT1	0x20	/* rising edge on Z2-CT1 output */
-
-#define PCI224_INTR_EDGE_BITS	(PCI224_INTR_EXT | PCI224_INTR_Z2CT1)
-#define PCI224_INTR_LEVEL_BITS	PCI224_INTR_DACFIFO
-
-/*
- * Handy macros.
- */
-
-/* Combine old and new bits. */
-#define COMBINE(old, new, mask)	(((old) & ~(mask)) | ((new) & (mask)))
-
-/* Current CPU.  XXX should this be hard_smp_processor_id()? */
-#define THISCPU		smp_processor_id()
-
-/* State bits for use with atomic bit operations. */
-#define AO_CMD_STARTED	0
-
-/*
- * Range tables.
- */
-
-/*
- * The ranges for PCI224.
- *
- * These are partly hardware-selectable by jumper LK1 and partly
- * software-selectable.
- *
- * All channels share the same hardware range.
- */
-static const struct comedi_lrange range_pci224 = {
-	10, {
-		/* jumper LK1 in position 1-2 (factory default) */
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		/* jumper LK1 in position 2-3 */
-		RANGE_ext(-1, 1),	/* bipolar [-Vext,+Vext] */
-		RANGE_ext(0, 1),	/* unipolar [0,+Vext] */
-	}
-};
-
-static const unsigned short hwrange_pci224[10] = {
-	/* jumper LK1 in position 1-2 (factory default) */
-	PCI224_DACCON_POLAR_BI | PCI224_DACCON_VREF_10,
-	PCI224_DACCON_POLAR_BI | PCI224_DACCON_VREF_5,
-	PCI224_DACCON_POLAR_BI | PCI224_DACCON_VREF_2_5,
-	PCI224_DACCON_POLAR_BI | PCI224_DACCON_VREF_1_25,
-	PCI224_DACCON_POLAR_UNI | PCI224_DACCON_VREF_10,
-	PCI224_DACCON_POLAR_UNI | PCI224_DACCON_VREF_5,
-	PCI224_DACCON_POLAR_UNI | PCI224_DACCON_VREF_2_5,
-	PCI224_DACCON_POLAR_UNI | PCI224_DACCON_VREF_1_25,
-	/* jumper LK1 in position 2-3 */
-	PCI224_DACCON_POLAR_BI,
-	PCI224_DACCON_POLAR_UNI,
-};
-
-/* Used to check all channels set to the same range on PCI224. */
-static const unsigned char range_check_pci224[10] = {
-	0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
-};
-
-/*
- * The ranges for PCI234.
- *
- * These are all hardware-selectable by jumper LK1 affecting all channels,
- * and jumpers LK2, LK3, LK4 and LK5 affecting channels 0, 1, 2 and 3
- * individually.
- */
-static const struct comedi_lrange range_pci234 = {
-	4, {
-		/* LK1: 1-2 (fact def), LK2/3/4/5: 2-3 (fac def) */
-		BIP_RANGE(10),
-		/* LK1: 1-2 (fact def), LK2/3/4/5: 1-2 */
-		BIP_RANGE(5),
-		/* LK1: 2-3, LK2/3/4/5: 2-3 (fac def) */
-		RANGE_ext(-2, 2),	/* bipolar [-2*Vext,+2*Vext] */
-		/* LK1: 2-3, LK2/3/4/5: 1-2 */
-		RANGE_ext(-1, 1),	/* bipolar [-Vext,+Vext] */
-	}
-};
-
-/* N.B. PCI234 ignores the polarity bit, but software uses it. */
-static const unsigned short hwrange_pci234[4] = {
-	PCI224_DACCON_POLAR_BI,
-	PCI224_DACCON_POLAR_BI,
-	PCI224_DACCON_POLAR_BI,
-	PCI224_DACCON_POLAR_BI,
-};
-
-/* Used to check all channels use same LK1 setting on PCI234. */
-static const unsigned char range_check_pci234[4] = {
-	0, 0, 1, 1,
-};
-
-/*
- * Board descriptions.
- */
-
-enum pci224_model { pci224_model, pci234_model };
-
-struct pci224_board {
-	const char *name;
-	unsigned int ao_chans;
-	unsigned int ao_bits;
-	const struct comedi_lrange *ao_range;
-	const unsigned short *ao_hwrange;
-	const unsigned char *ao_range_check;
-};
-
-static const struct pci224_board pci224_boards[] = {
-	[pci224_model] = {
-		.name		= "pci224",
-		.ao_chans	= 16,
-		.ao_bits	= 12,
-		.ao_range	= &range_pci224,
-		.ao_hwrange	= &hwrange_pci224[0],
-		.ao_range_check	= &range_check_pci224[0],
-	},
-	[pci234_model] = {
-		.name		= "pci234",
-		.ao_chans	= 4,
-		.ao_bits	= 16,
-		.ao_range	= &range_pci234,
-		.ao_hwrange	= &hwrange_pci234[0],
-		.ao_range_check	= &range_check_pci234[0],
-	},
-};
-
-struct pci224_private {
-	unsigned long iobase1;
-	unsigned long state;
-	spinlock_t ao_spinlock;	/* spinlock for AO command handling */
-	unsigned short *ao_scan_vals;
-	unsigned char *ao_scan_order;
-	int intr_cpuid;
-	short intr_running;
-	unsigned short daccon;
-	unsigned short ao_enab;	/* max 16 channels so 'short' will do */
-	unsigned char intsce;
-};
-
-/*
- * Called from the 'insn_write' function to perform a single write.
- */
-static void
-pci224_ao_set_data(struct comedi_device *dev, int chan, int range,
-		   unsigned int data)
-{
-	const struct pci224_board *board = dev->board_ptr;
-	struct pci224_private *devpriv = dev->private;
-	unsigned short mangled;
-
-	/* Enable the channel. */
-	outw(1 << chan, dev->iobase + PCI224_DACCEN);
-	/* Set range and reset FIFO. */
-	devpriv->daccon = COMBINE(devpriv->daccon, board->ao_hwrange[range],
-				  PCI224_DACCON_POLAR_MASK |
-				  PCI224_DACCON_VREF_MASK);
-	outw(devpriv->daccon | PCI224_DACCON_FIFORESET,
-	     dev->iobase + PCI224_DACCON);
-	/*
-	 * Mangle the data.  The hardware expects:
-	 * - bipolar: 16-bit 2's complement
-	 * - unipolar: 16-bit unsigned
-	 */
-	mangled = (unsigned short)data << (16 - board->ao_bits);
-	if ((devpriv->daccon & PCI224_DACCON_POLAR_MASK) ==
-	    PCI224_DACCON_POLAR_BI) {
-		mangled ^= 0x8000;
-	}
-	/* Write mangled data to the FIFO. */
-	outw(mangled, dev->iobase + PCI224_DACDATA);
-	/* Trigger the conversion. */
-	inw(dev->iobase + PCI224_SOFTTRIG);
-}
-
-static int pci224_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		pci224_ao_set_data(dev, chan, range, val);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-/*
- * Kills a command running on the AO subdevice.
- */
-static void pci224_ao_stop(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct pci224_private *devpriv = dev->private;
-	unsigned long flags;
-
-	if (!test_and_clear_bit(AO_CMD_STARTED, &devpriv->state))
-		return;
-
-	spin_lock_irqsave(&devpriv->ao_spinlock, flags);
-	/* Kill the interrupts. */
-	devpriv->intsce = 0;
-	outb(0, devpriv->iobase1 + PCI224_INT_SCE);
-	/*
-	 * Interrupt routine may or may not be running.  We may or may not
-	 * have been called from the interrupt routine (directly or
-	 * indirectly via a comedi_events() callback routine).  It's highly
-	 * unlikely that we've been called from some other interrupt routine
-	 * but who knows what strange things coders get up to!
-	 *
-	 * If the interrupt routine is currently running, wait for it to
-	 * finish, unless we appear to have been called via the interrupt
-	 * routine.
-	 */
-	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
-	}
-	spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-	/* Reconfigure DAC for insn_write usage. */
-	outw(0, dev->iobase + PCI224_DACCEN);	/* Disable channels. */
-	devpriv->daccon =
-	     COMBINE(devpriv->daccon,
-		     PCI224_DACCON_TRIG_SW | PCI224_DACCON_FIFOINTR_EMPTY,
-		     PCI224_DACCON_TRIG_MASK | PCI224_DACCON_FIFOINTR_MASK);
-	outw(devpriv->daccon | PCI224_DACCON_FIFORESET,
-	     dev->iobase + PCI224_DACCON);
-}
-
-/*
- * Handles start of acquisition for the AO subdevice.
- */
-static void pci224_ao_start(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct pci224_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned long flags;
-
-	set_bit(AO_CMD_STARTED, &devpriv->state);
-
-	/* Enable interrupts. */
-	spin_lock_irqsave(&devpriv->ao_spinlock, flags);
-	if (cmd->stop_src == TRIG_EXT)
-		devpriv->intsce = PCI224_INTR_EXT | PCI224_INTR_DAC;
-	else
-		devpriv->intsce = PCI224_INTR_DAC;
-
-	outb(devpriv->intsce, devpriv->iobase1 + PCI224_INT_SCE);
-	spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-}
-
-/*
- * Handles interrupts from the DAC FIFO.
- */
-static void pci224_ao_handle_fifo(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	struct pci224_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int num_scans = comedi_nscans_left(s, 0);
-	unsigned int room;
-	unsigned short dacstat;
-	unsigned int i, n;
-
-	/* Determine how much room is in the FIFO (in samples). */
-	dacstat = inw(dev->iobase + PCI224_DACCON);
-	switch (dacstat & PCI224_DACCON_FIFOFL_MASK) {
-	case PCI224_DACCON_FIFOFL_EMPTY:
-		room = PCI224_FIFO_ROOM_EMPTY;
-		if (cmd->stop_src == TRIG_COUNT &&
-		    s->async->scans_done >= cmd->stop_arg) {
-			/* FIFO empty at end of counted acquisition. */
-			s->async->events |= COMEDI_CB_EOA;
-			comedi_handle_events(dev, s);
-			return;
-		}
-		break;
-	case PCI224_DACCON_FIFOFL_ONETOHALF:
-		room = PCI224_FIFO_ROOM_ONETOHALF;
-		break;
-	case PCI224_DACCON_FIFOFL_HALFTOFULL:
-		room = PCI224_FIFO_ROOM_HALFTOFULL;
-		break;
-	default:
-		room = PCI224_FIFO_ROOM_FULL;
-		break;
-	}
-	if (room >= PCI224_FIFO_ROOM_ONETOHALF) {
-		/* FIFO is less than half-full. */
-		if (num_scans == 0) {
-			/* Nothing left to put in the FIFO. */
-			dev_err(dev->class_dev, "AO buffer underrun\n");
-			s->async->events |= COMEDI_CB_OVERFLOW;
-		}
-	}
-	/* Determine how many new scans can be put in the FIFO. */
-	room /= cmd->chanlist_len;
-
-	/* Determine how many scans to process. */
-	if (num_scans > room)
-		num_scans = room;
-
-	/* Process scans. */
-	for (n = 0; n < num_scans; n++) {
-		comedi_buf_read_samples(s, &devpriv->ao_scan_vals[0],
-					cmd->chanlist_len);
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			outw(devpriv->ao_scan_vals[devpriv->ao_scan_order[i]],
-			     dev->iobase + PCI224_DACDATA);
-		}
-	}
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg) {
-		/*
-		 * Change FIFO interrupt trigger level to wait
-		 * until FIFO is empty.
-		 */
-		devpriv->daccon = COMBINE(devpriv->daccon,
-					  PCI224_DACCON_FIFOINTR_EMPTY,
-					  PCI224_DACCON_FIFOINTR_MASK);
-		outw(devpriv->daccon, dev->iobase + PCI224_DACCON);
-	}
-	if ((devpriv->daccon & PCI224_DACCON_TRIG_MASK) ==
-	    PCI224_DACCON_TRIG_NONE) {
-		unsigned short trig;
-
-		/*
-		 * This is the initial DAC FIFO interrupt at the
-		 * start of the acquisition.  The DAC's scan trigger
-		 * has been set to 'none' up until now.
-		 *
-		 * Now that data has been written to the FIFO, the
-		 * DAC's scan trigger source can be set to the
-		 * correct value.
-		 *
-		 * BUG: The first scan will be triggered immediately
-		 * if the scan trigger source is at logic level 1.
-		 */
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			trig = PCI224_DACCON_TRIG_Z2CT0;
-		} else {
-			/* cmd->scan_begin_src == TRIG_EXT */
-			if (cmd->scan_begin_arg & CR_INVERT)
-				trig = PCI224_DACCON_TRIG_EXTN;
-			else
-				trig = PCI224_DACCON_TRIG_EXTP;
-		}
-		devpriv->daccon =
-		    COMBINE(devpriv->daccon, trig, PCI224_DACCON_TRIG_MASK);
-		outw(devpriv->daccon, dev->iobase + PCI224_DACCON);
-	}
-
-	comedi_handle_events(dev, s);
-}
-
-static int pci224_ao_inttrig_start(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int trig_num)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	s->async->inttrig = NULL;
-	pci224_ao_start(dev, s);
-
-	return 1;
-}
-
-static int pci224_ao_check_chanlist(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_cmd *cmd)
-{
-	const struct pci224_board *board = dev->board_ptr;
-	unsigned int range_check_0;
-	unsigned int chan_mask = 0;
-	int i;
-
-	range_check_0 = board->ao_range_check[CR_RANGE(cmd->chanlist[0])];
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if (chan_mask & (1 << chan)) {
-			dev_dbg(dev->class_dev,
-				"%s: entries in chanlist must contain no duplicate channels\n",
-				__func__);
-			return -EINVAL;
-		}
-		chan_mask |= 1 << chan;
-
-		if (board->ao_range_check[CR_RANGE(cmd->chanlist[i])] !=
-		    range_check_0) {
-			dev_dbg(dev->class_dev,
-				"%s: entries in chanlist have incompatible ranges\n",
-				__func__);
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-#define MAX_SCAN_PERIOD		0xFFFFFFFFU
-#define MIN_SCAN_PERIOD		2500
-#define CONVERT_PERIOD		625
-
-/*
- * 'do_cmdtest' function for AO subdevice.
- */
-static int
-pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
-		  struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_EXT | TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src,
-					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	/*
-	 * There's only one external trigger signal (which makes these
-	 * tests easier).  Only one thing can use it.
-	 */
-	arg = 0;
-	if (cmd->start_src & TRIG_EXT)
-		arg++;
-	if (cmd->scan_begin_src & TRIG_EXT)
-		arg++;
-	if (cmd->stop_src & TRIG_EXT)
-		arg++;
-	if (arg > 1)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_INT:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		/* Force to external trigger 0. */
-		if (cmd->start_arg & ~CR_FLAGS_MASK) {
-			cmd->start_arg =
-			    COMBINE(cmd->start_arg, 0, ~CR_FLAGS_MASK);
-			err |= -EINVAL;
-		}
-		/* The only flag allowed is CR_EDGE, which is ignored. */
-		if (cmd->start_arg & CR_FLAGS_MASK & ~CR_EDGE) {
-			cmd->start_arg = COMBINE(cmd->start_arg, 0,
-						 CR_FLAGS_MASK & ~CR_EDGE);
-			err |= -EINVAL;
-		}
-		break;
-	}
-
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-						    MAX_SCAN_PERIOD);
-
-		arg = cmd->chanlist_len * CONVERT_PERIOD;
-		if (arg < MIN_SCAN_PERIOD)
-			arg = MIN_SCAN_PERIOD;
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
-		break;
-	case TRIG_EXT:
-		/* Force to external trigger 0. */
-		if (cmd->scan_begin_arg & ~CR_FLAGS_MASK) {
-			cmd->scan_begin_arg =
-			    COMBINE(cmd->scan_begin_arg, 0, ~CR_FLAGS_MASK);
-			err |= -EINVAL;
-		}
-		/* Only allow flags CR_EDGE and CR_INVERT.  Ignore CR_EDGE. */
-		if (cmd->scan_begin_arg & CR_FLAGS_MASK &
-		    ~(CR_EDGE | CR_INVERT)) {
-			cmd->scan_begin_arg =
-			    COMBINE(cmd->scan_begin_arg, 0,
-				    CR_FLAGS_MASK & ~(CR_EDGE | CR_INVERT));
-			err |= -EINVAL;
-		}
-		break;
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	switch (cmd->stop_src) {
-	case TRIG_COUNT:
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-		break;
-	case TRIG_EXT:
-		/* Force to external trigger 0. */
-		if (cmd->stop_arg & ~CR_FLAGS_MASK) {
-			cmd->stop_arg =
-			    COMBINE(cmd->stop_arg, 0, ~CR_FLAGS_MASK);
-			err |= -EINVAL;
-		}
-		/* The only flag allowed is CR_EDGE, which is ignored. */
-		if (cmd->stop_arg & CR_FLAGS_MASK & ~CR_EDGE) {
-			cmd->stop_arg =
-			    COMBINE(cmd->stop_arg, 0, CR_FLAGS_MASK & ~CR_EDGE);
-		}
-		break;
-	case TRIG_NONE:
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-		break;
-	}
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments. */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		/* Use two timers. */
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= pci224_ao_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static void pci224_ao_start_pacer(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	struct pci224_private *devpriv = dev->private;
-
-	/*
-	 * The output of timer Z2-0 will be used as the scan trigger
-	 * source.
-	 */
-	/* Make sure Z2-0 is gated on.  */
-	outb(GAT_CONFIG(0, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE);
-	/* Cascading with Z2-2. */
-	/* Make sure Z2-2 is gated on.  */
-	outb(GAT_CONFIG(2, GAT_VCC), devpriv->iobase1 + PCI224_ZGAT_SCE);
-	/* Z2-2 needs 10 MHz clock. */
-	outb(CLK_CONFIG(2, CLK_10MHZ), devpriv->iobase1 + PCI224_ZCLK_SCE);
-	/* Z2-0 is clocked from Z2-2's output. */
-	outb(CLK_CONFIG(0, CLK_OUTNM1), devpriv->iobase1 + PCI224_ZCLK_SCE);
-
-	comedi_8254_pacer_enable(dev->pacer, 2, 0, false);
-}
-
-static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	const struct pci224_board *board = dev->board_ptr;
-	struct pci224_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int range;
-	unsigned int i, j;
-	unsigned int ch;
-	unsigned int rank;
-	unsigned long flags;
-
-	/* Cannot handle null/empty chanlist. */
-	if (!cmd->chanlist || cmd->chanlist_len == 0)
-		return -EINVAL;
-
-	/* Determine which channels are enabled and their load order.  */
-	devpriv->ao_enab = 0;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		ch = CR_CHAN(cmd->chanlist[i]);
-		devpriv->ao_enab |= 1U << ch;
-		rank = 0;
-		for (j = 0; j < cmd->chanlist_len; j++) {
-			if (CR_CHAN(cmd->chanlist[j]) < ch)
-				rank++;
-		}
-		devpriv->ao_scan_order[rank] = i;
-	}
-
-	/* Set enabled channels. */
-	outw(devpriv->ao_enab, dev->iobase + PCI224_DACCEN);
-
-	/* Determine range and polarity.  All channels the same.  */
-	range = CR_RANGE(cmd->chanlist[0]);
-
-	/*
-	 * Set DAC range and polarity.
-	 * Set DAC scan trigger source to 'none'.
-	 * Set DAC FIFO interrupt trigger level to 'not half full'.
-	 * Reset DAC FIFO.
-	 *
-	 * N.B. DAC FIFO interrupts are currently disabled.
-	 */
-	devpriv->daccon =
-	    COMBINE(devpriv->daccon,
-		    board->ao_hwrange[range] | PCI224_DACCON_TRIG_NONE |
-		    PCI224_DACCON_FIFOINTR_NHALF,
-		    PCI224_DACCON_POLAR_MASK | PCI224_DACCON_VREF_MASK |
-		    PCI224_DACCON_TRIG_MASK | PCI224_DACCON_FIFOINTR_MASK);
-	outw(devpriv->daccon | PCI224_DACCON_FIFORESET,
-	     dev->iobase + PCI224_DACCON);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(dev->pacer);
-		pci224_ao_start_pacer(dev, s);
-	}
-
-	spin_lock_irqsave(&devpriv->ao_spinlock, flags);
-	if (cmd->start_src == TRIG_INT) {
-		s->async->inttrig = pci224_ao_inttrig_start;
-	} else {	/* TRIG_EXT */
-		/* Enable external interrupt trigger to start acquisition. */
-		devpriv->intsce |= PCI224_INTR_EXT;
-		outb(devpriv->intsce, devpriv->iobase1 + PCI224_INT_SCE);
-	}
-	spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-
-	return 0;
-}
-
-/*
- * 'cancel' function for AO subdevice.
- */
-static int pci224_ao_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	pci224_ao_stop(dev, s);
-	return 0;
-}
-
-/*
- * 'munge' data for AO command.
- */
-static void
-pci224_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s,
-		void *data, unsigned int num_bytes, unsigned int chan_index)
-{
-	const struct pci224_board *board = dev->board_ptr;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned short *array = data;
-	unsigned int length = num_bytes / sizeof(*array);
-	unsigned int offset;
-	unsigned int shift;
-	unsigned int i;
-
-	/* The hardware expects 16-bit numbers. */
-	shift = 16 - board->ao_bits;
-	/* Channels will be all bipolar or all unipolar. */
-	if ((board->ao_hwrange[CR_RANGE(cmd->chanlist[0])] &
-	     PCI224_DACCON_POLAR_MASK) == PCI224_DACCON_POLAR_UNI) {
-		/* Unipolar */
-		offset = 0;
-	} else {
-		/* Bipolar */
-		offset = 32768;
-	}
-	/* Munge the data. */
-	for (i = 0; i < length; i++)
-		array[i] = (array[i] << shift) - offset;
-}
-
-/*
- * Interrupt handler.
- */
-static irqreturn_t pci224_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct pci224_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	struct comedi_cmd *cmd;
-	unsigned char intstat, valid_intstat;
-	unsigned char curenab;
-	int retval = 0;
-	unsigned long flags;
-
-	intstat = inb(devpriv->iobase1 + PCI224_INT_SCE) & 0x3F;
-	if (intstat) {
-		retval = 1;
-		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
-		valid_intstat = devpriv->intsce & intstat;
-		/* Temporarily disable interrupt sources. */
-		curenab = devpriv->intsce & ~intstat;
-		outb(curenab, devpriv->iobase1 + PCI224_INT_SCE);
-		devpriv->intr_running = 1;
-		devpriv->intr_cpuid = THISCPU;
-		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-		if (valid_intstat) {
-			cmd = &s->async->cmd;
-			if (valid_intstat & PCI224_INTR_EXT) {
-				devpriv->intsce &= ~PCI224_INTR_EXT;
-				if (cmd->start_src == TRIG_EXT)
-					pci224_ao_start(dev, s);
-				else if (cmd->stop_src == TRIG_EXT)
-					pci224_ao_stop(dev, s);
-			}
-			if (valid_intstat & PCI224_INTR_DAC)
-				pci224_ao_handle_fifo(dev, s);
-		}
-		/* Reenable interrupt sources. */
-		spin_lock_irqsave(&devpriv->ao_spinlock, flags);
-		if (curenab != devpriv->intsce) {
-			outb(devpriv->intsce,
-			     devpriv->iobase1 + PCI224_INT_SCE);
-		}
-		devpriv->intr_running = 0;
-		spin_unlock_irqrestore(&devpriv->ao_spinlock, flags);
-	}
-	return IRQ_RETVAL(retval);
-}
-
-static int
-pci224_auto_attach(struct comedi_device *dev, unsigned long context_model)
-{
-	struct pci_dev *pci_dev = comedi_to_pci_dev(dev);
-	const struct pci224_board *board = NULL;
-	struct pci224_private *devpriv;
-	struct comedi_subdevice *s;
-	unsigned int irq;
-	int ret;
-
-	if (context_model < ARRAY_SIZE(pci224_boards))
-		board = &pci224_boards[context_model];
-	if (!board || !board->name) {
-		dev_err(dev->class_dev,
-			"amplc_pci224: BUG! cannot determine board type!\n");
-		return -EINVAL;
-	}
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	dev_info(dev->class_dev, "amplc_pci224: attach pci %s - %s\n",
-		 pci_name(pci_dev), dev->board_name);
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	spin_lock_init(&devpriv->ao_spinlock);
-
-	devpriv->iobase1 = pci_resource_start(pci_dev, 2);
-	dev->iobase = pci_resource_start(pci_dev, 3);
-	irq = pci_dev->irq;
-
-	/* Allocate buffer to hold values for AO channel scan. */
-	devpriv->ao_scan_vals = kmalloc(sizeof(devpriv->ao_scan_vals[0]) *
-					board->ao_chans, GFP_KERNEL);
-	if (!devpriv->ao_scan_vals)
-		return -ENOMEM;
-
-	/* Allocate buffer to hold AO channel scan order. */
-	devpriv->ao_scan_order = kmalloc(sizeof(devpriv->ao_scan_order[0]) *
-					 board->ao_chans, GFP_KERNEL);
-	if (!devpriv->ao_scan_order)
-		return -ENOMEM;
-
-	/* Disable interrupt sources. */
-	devpriv->intsce = 0;
-	outb(0, devpriv->iobase1 + PCI224_INT_SCE);
-
-	/* Initialize the DAC hardware. */
-	outw(PCI224_DACCON_GLOBALRESET, dev->iobase + PCI224_DACCON);
-	outw(0, dev->iobase + PCI224_DACCEN);
-	outw(0, dev->iobase + PCI224_FIFOSIZ);
-	devpriv->daccon = PCI224_DACCON_TRIG_SW | PCI224_DACCON_POLAR_BI |
-			  PCI224_DACCON_FIFOENAB | PCI224_DACCON_FIFOINTR_EMPTY;
-	outw(devpriv->daccon | PCI224_DACCON_FIFORESET,
-	     dev->iobase + PCI224_DACCON);
-
-	dev->pacer = comedi_8254_init(devpriv->iobase1 + PCI224_Z2_BASE,
-				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* Analog output subdevice. */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE;
-	s->n_chan = board->ao_chans;
-	s->maxdata = (1 << board->ao_bits) - 1;
-	s->range_table = board->ao_range;
-	s->insn_write = pci224_ao_insn_write;
-	s->len_chanlist = s->n_chan;
-	dev->write_subdev = s;
-	s->do_cmd = pci224_ao_cmd;
-	s->do_cmdtest = pci224_ao_cmdtest;
-	s->cancel = pci224_ao_cancel;
-	s->munge = pci224_ao_munge;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	if (irq) {
-		ret = request_irq(irq, pci224_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret < 0) {
-			dev_err(dev->class_dev,
-				"error! unable to allocate irq %u\n", irq);
-			return ret;
-		}
-		dev->irq = irq;
-	}
-
-	return 0;
-}
-
-static void pci224_detach(struct comedi_device *dev)
-{
-	struct pci224_private *devpriv = dev->private;
-
-	comedi_pci_detach(dev);
-	if (devpriv) {
-		kfree(devpriv->ao_scan_vals);
-		kfree(devpriv->ao_scan_order);
-	}
-}
-
-static struct comedi_driver amplc_pci224_driver = {
-	.driver_name	= "amplc_pci224",
-	.module		= THIS_MODULE,
-	.detach		= pci224_detach,
-	.auto_attach	= pci224_auto_attach,
-	.board_name	= &pci224_boards[0].name,
-	.offset		= sizeof(struct pci224_board),
-	.num_names	= ARRAY_SIZE(pci224_boards),
-};
-
-static int amplc_pci224_pci_probe(struct pci_dev *dev,
-				  const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &amplc_pci224_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id amplc_pci224_pci_table[] = {
-	{ PCI_VDEVICE(AMPLICON, 0x0007), pci224_model },
-	{ PCI_VDEVICE(AMPLICON, 0x0008), pci234_model },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, amplc_pci224_pci_table);
-
-static struct pci_driver amplc_pci224_pci_driver = {
-	.name		= "amplc_pci224",
-	.id_table	= amplc_pci224_pci_table,
-	.probe		= amplc_pci224_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(amplc_pci224_driver, amplc_pci224_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon PCI224 and PCI234 AO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
deleted file mode 100644
index 5c5c4e2ec3d5..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ /dev/null
@@ -1,2568 +0,0 @@
-/*
- * comedi/drivers/amplc_pci230.c
- * Driver for Amplicon PCI230 and PCI260 Multifunction I/O boards.
- *
- * Copyright (C) 2001 Allan Willcox <allanwillcox@ozemail.com.au>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: amplc_pci230
- * Description: Amplicon PCI230, PCI260 Multifunction I/O boards
- * Author: Allan Willcox <allanwillcox@ozemail.com.au>,
- *   Steve D Sharples <steve.sharples@nottingham.ac.uk>,
- *   Ian Abbott <abbotti@mev.co.uk>
- * Updated: Mon, 01 Sep 2014 10:09:16 +0000
- * Devices: [Amplicon] PCI230 (amplc_pci230), PCI230+, PCI260, PCI260+
- * Status: works
- *
- * Configuration options:
- *   none
- *
- * Manual configuration of PCI cards is not supported; they are configured
- * automatically.
- *
- * The PCI230+ and PCI260+ have the same PCI device IDs as the PCI230 and
- * PCI260, but can be distinguished by the size of the PCI regions.  A
- * card will be configured as a "+" model if detected as such.
- *
- * Subdevices:
- *
- *                 PCI230(+)    PCI260(+)
- *                 ---------    ---------
- *   Subdevices       3            1
- *         0          AI           AI
- *         1          AO
- *         2          DIO
- *
- * AI Subdevice:
- *
- *   The AI subdevice has 16 single-ended channels or 8 differential
- *   channels.
- *
- *   The PCI230 and PCI260 cards have 12-bit resolution.  The PCI230+ and
- *   PCI260+ cards have 16-bit resolution.
- *
- *   For differential mode, use inputs 2N and 2N+1 for channel N (e.g. use
- *   inputs 14 and 15 for channel 7).  If the card is physically a PCI230
- *   or PCI260 then it actually uses a "pseudo-differential" mode where the
- *   inputs are sampled a few microseconds apart.  The PCI230+ and PCI260+
- *   use true differential sampling.  Another difference is that if the
- *   card is physically a PCI230 or PCI260, the inverting input is 2N,
- *   whereas for a PCI230+ or PCI260+ the inverting input is 2N+1.  So if a
- *   PCI230 is physically replaced by a PCI230+ (or a PCI260 with a
- *   PCI260+) and differential mode is used, the differential inputs need
- *   to be physically swapped on the connector.
- *
- *   The following input ranges are supported:
- *
- *     0 => [-10, +10] V
- *     1 => [-5, +5] V
- *     2 => [-2.5, +2.5] V
- *     3 => [-1.25, +1.25] V
- *     4 => [0, 10] V
- *     5 => [0, 5] V
- *     6 => [0, 2.5] V
- *
- * AI Commands:
- *
- *   +=========+==============+===========+============+==========+
- *   |start_src|scan_begin_src|convert_src|scan_end_src| stop_src |
- *   +=========+==============+===========+============+==========+
- *   |TRIG_NOW | TRIG_FOLLOW  |TRIG_TIMER | TRIG_COUNT |TRIG_NONE |
- *   |TRIG_INT |              |TRIG_EXT(3)|            |TRIG_COUNT|
- *   |         |              |TRIG_INT   |            |          |
- *   |         |--------------|-----------|            |          |
- *   |         | TRIG_TIMER(1)|TRIG_TIMER |            |          |
- *   |         | TRIG_EXT(2)  |           |            |          |
- *   |         | TRIG_INT     |           |            |          |
- *   +---------+--------------+-----------+------------+----------+
- *
- *   Note 1: If AI command and AO command are used simultaneously, only
- *           one may have scan_begin_src == TRIG_TIMER.
- *
- *   Note 2: For PCI230 and PCI230+, scan_begin_src == TRIG_EXT uses
- *           DIO channel 16 (pin 49) which will need to be configured as
- *           a digital input.  For PCI260+, the EXTTRIG/EXTCONVCLK input
- *           (pin 17) is used instead.  For PCI230, scan_begin_src ==
- *           TRIG_EXT is not supported.  The trigger is a rising edge
- *           on the input.
- *
- *   Note 3: For convert_src == TRIG_EXT, the EXTTRIG/EXTCONVCLK input
- *           (pin 25 on PCI230(+), pin 17 on PCI260(+)) is used.  The
- *           convert_arg value is interpreted as follows:
- *
- *             convert_arg == (CR_EDGE | 0) => rising edge
- *             convert_arg == (CR_EDGE | CR_INVERT | 0) => falling edge
- *             convert_arg == 0 => falling edge (backwards compatibility)
- *             convert_arg == 1 => rising edge (backwards compatibility)
- *
- *   All entries in the channel list must use the same analogue reference.
- *   If the analogue reference is not AREF_DIFF (not differential) each
- *   pair of channel numbers (0 and 1, 2 and 3, etc.) must use the same
- *   input range.  The input ranges used in the sequence must be all
- *   bipolar (ranges 0 to 3) or all unipolar (ranges 4 to 6).  The channel
- *   sequence must consist of 1 or more identical subsequences.  Within the
- *   subsequence, channels must be in ascending order with no repeated
- *   channels.  For example, the following sequences are valid: 0 1 2 3
- *   (single valid subsequence), 0 2 3 5 0 2 3 5 (repeated valid
- *   subsequence), 1 1 1 1 (repeated valid subsequence).  The following
- *   sequences are invalid: 0 3 2 1 (invalid subsequence), 0 2 3 5 0 2 3
- *   (incompletely repeated subsequence).  Some versions of the PCI230+ and
- *   PCI260+ have a bug that requires a subsequence longer than one entry
- *   long to include channel 0.
- *
- * AO Subdevice:
- *
- *   The AO subdevice has 2 channels with 12-bit resolution.
- *   The following output ranges are supported:
- *     0 => [0, 10] V
- *     1 => [-10, +10] V
- *
- * AO Commands:
- *
- *   +=========+==============+===========+============+==========+
- *   |start_src|scan_begin_src|convert_src|scan_end_src| stop_src |
- *   +=========+==============+===========+============+==========+
- *   |TRIG_INT | TRIG_TIMER(1)| TRIG_NOW  | TRIG_COUNT |TRIG_NONE |
- *   |         | TRIG_EXT(2)  |           |            |TRIG_COUNT|
- *   |         | TRIG_INT     |           |            |          |
- *   +---------+--------------+-----------+------------+----------+
- *
- *   Note 1: If AI command and AO command are used simultaneously, only
- *           one may have scan_begin_src == TRIG_TIMER.
- *
- *   Note 2: scan_begin_src == TRIG_EXT is only supported if the card is
- *           configured as a PCI230+ and is only supported on later
- *           versions of the card.  As a card configured as a PCI230+ is
- *           not guaranteed to support external triggering, please consider
- *           this support to be a bonus.  It uses the EXTTRIG/ EXTCONVCLK
- *           input (PCI230+ pin 25).  Triggering will be on the rising edge
- *           unless the CR_INVERT flag is set in scan_begin_arg.
- *
- *   The channels in the channel sequence must be in ascending order with
- *   no repeats.  All entries in the channel sequence must use the same
- *   output range.
- *
- * DIO Subdevice:
- *
- *   The DIO subdevice is a 8255 chip providing 24 DIO channels.  The DIO
- *   channels are configurable as inputs or outputs in four groups:
- *
- *     Port A  - channels  0 to  7
- *     Port B  - channels  8 to 15
- *     Port CL - channels 16 to 19
- *     Port CH - channels 20 to 23
- *
- *   Only mode 0 of the 8255 chip is supported.
- *
- *   Bit 0 of port C (DIO channel 16) is also used as an external scan
- *   trigger input for AI commands on PCI230 and PCI230+, so would need to
- *   be configured as an input to use it for that purpose.
- */
-
-/*
- * Extra triggered scan functionality, interrupt bug-fix added by Steve
- * Sharples.  Support for PCI230+/260+, more triggered scan functionality,
- * and workarounds for (or detection of) various hardware problems added
- * by Ian Abbott.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "comedi_8254.h"
-#include "8255.h"
-
-/*
- * PCI230 PCI configuration register information
- */
-#define PCI_DEVICE_ID_PCI230 0x0000
-#define PCI_DEVICE_ID_PCI260 0x0006
-
-/*
- * PCI230 i/o space 1 registers.
- */
-#define PCI230_PPI_X_BASE	0x00	/* User PPI (82C55) base */
-#define PCI230_PPI_X_A		0x00	/* User PPI (82C55) port A */
-#define PCI230_PPI_X_B		0x01	/* User PPI (82C55) port B */
-#define PCI230_PPI_X_C		0x02	/* User PPI (82C55) port C */
-#define PCI230_PPI_X_CMD	0x03	/* User PPI (82C55) control word */
-#define PCI230_Z2_CT_BASE	0x14	/* 82C54 counter/timer base */
-#define PCI230_ZCLK_SCE		0x1A	/* Group Z Clock Configuration */
-#define PCI230_ZGAT_SCE		0x1D	/* Group Z Gate Configuration */
-#define PCI230_INT_SCE		0x1E	/* Interrupt source mask (w) */
-#define PCI230_INT_STAT		0x1E	/* Interrupt status (r) */
-
-/*
- * PCI230 i/o space 2 registers.
- */
-#define PCI230_DACCON		0x00	/* DAC control */
-#define PCI230_DACOUT1		0x02	/* DAC channel 0 (w) */
-#define PCI230_DACOUT2		0x04	/* DAC channel 1 (w) (not FIFO mode) */
-#define PCI230_ADCDATA		0x08	/* ADC data (r) */
-#define PCI230_ADCSWTRIG	0x08	/* ADC software trigger (w) */
-#define PCI230_ADCCON		0x0A	/* ADC control */
-#define PCI230_ADCEN		0x0C	/* ADC channel enable bits */
-#define PCI230_ADCG		0x0E	/* ADC gain control bits */
-/* PCI230+ i/o space 2 additional registers. */
-#define PCI230P_ADCTRIG		0x10	/* ADC start acquisition trigger */
-#define PCI230P_ADCTH		0x12	/* ADC analog trigger threshold */
-#define PCI230P_ADCFFTH		0x14	/* ADC FIFO interrupt threshold */
-#define PCI230P_ADCFFLEV	0x16	/* ADC FIFO level (r) */
-#define PCI230P_ADCPTSC		0x18	/* ADC pre-trigger sample count (r) */
-#define PCI230P_ADCHYST		0x1A	/* ADC analog trigger hysteresys */
-#define PCI230P_EXTFUNC		0x1C	/* Extended functions */
-#define PCI230P_HWVER		0x1E	/* Hardware version (r) */
-/* PCI230+ hardware version 2 onwards. */
-#define PCI230P2_DACDATA	0x02	/* DAC data (FIFO mode) (w) */
-#define PCI230P2_DACSWTRIG	0x02	/* DAC soft trigger (FIFO mode) (r) */
-#define PCI230P2_DACEN		0x06	/* DAC channel enable (FIFO mode) */
-
-/*
- * DACCON read-write values.
- */
-#define PCI230_DAC_OR_UNI		(0 << 0) /* Output range unipolar */
-#define PCI230_DAC_OR_BIP		(1 << 0) /* Output range bipolar */
-#define PCI230_DAC_OR_MASK		(1 << 0)
-/*
- * The following applies only if DAC FIFO support is enabled in the EXTFUNC
- * register (and only for PCI230+ hardware version 2 onwards).
- */
-#define PCI230P2_DAC_FIFO_EN		(1 << 8) /* FIFO enable */
-/*
- * The following apply only if the DAC FIFO is enabled (and only for PCI230+
- * hardware version 2 onwards).
- */
-#define PCI230P2_DAC_TRIG_NONE		(0 << 2) /* No trigger */
-#define PCI230P2_DAC_TRIG_SW		(1 << 2) /* Software trigger trigger */
-#define PCI230P2_DAC_TRIG_EXTP		(2 << 2) /* EXTTRIG +ve edge trigger */
-#define PCI230P2_DAC_TRIG_EXTN		(3 << 2) /* EXTTRIG -ve edge trigger */
-#define PCI230P2_DAC_TRIG_Z2CT0		(4 << 2) /* CT0-OUT +ve edge trigger */
-#define PCI230P2_DAC_TRIG_Z2CT1		(5 << 2) /* CT1-OUT +ve edge trigger */
-#define PCI230P2_DAC_TRIG_Z2CT2		(6 << 2) /* CT2-OUT +ve edge trigger */
-#define PCI230P2_DAC_TRIG_MASK		(7 << 2)
-#define PCI230P2_DAC_FIFO_WRAP		(1 << 7) /* FIFO wraparound mode */
-#define PCI230P2_DAC_INT_FIFO_EMPTY	(0 << 9) /* FIFO interrupt empty */
-#define PCI230P2_DAC_INT_FIFO_NEMPTY	(1 << 9)
-#define PCI230P2_DAC_INT_FIFO_NHALF	(2 << 9) /* FIFO intr not half full */
-#define PCI230P2_DAC_INT_FIFO_HALF	(3 << 9)
-#define PCI230P2_DAC_INT_FIFO_NFULL	(4 << 9) /* FIFO interrupt not full */
-#define PCI230P2_DAC_INT_FIFO_FULL	(5 << 9)
-#define PCI230P2_DAC_INT_FIFO_MASK	(7 << 9)
-
-/*
- * DACCON read-only values.
- */
-#define PCI230_DAC_BUSY			(1 << 1) /* DAC busy. */
-/*
- * The following apply only if the DAC FIFO is enabled (and only for PCI230+
- * hardware version 2 onwards).
- */
-#define PCI230P2_DAC_FIFO_UNDERRUN_LATCHED	(1 << 5) /* Underrun error */
-#define PCI230P2_DAC_FIFO_EMPTY		(1 << 13) /* FIFO empty */
-#define PCI230P2_DAC_FIFO_FULL		(1 << 14) /* FIFO full */
-#define PCI230P2_DAC_FIFO_HALF		(1 << 15) /* FIFO half full */
-
-/*
- * DACCON write-only, transient values.
- */
-/*
- * The following apply only if the DAC FIFO is enabled (and only for PCI230+
- * hardware version 2 onwards).
- */
-#define PCI230P2_DAC_FIFO_UNDERRUN_CLEAR	(1 << 5) /* Clear underrun */
-#define PCI230P2_DAC_FIFO_RESET		(1 << 12) /* FIFO reset */
-
-/*
- * PCI230+ hardware version 2 DAC FIFO levels.
- */
-#define PCI230P2_DAC_FIFOLEVEL_HALF	512
-#define PCI230P2_DAC_FIFOLEVEL_FULL	1024
-/* Free space in DAC FIFO. */
-#define PCI230P2_DAC_FIFOROOM_EMPTY		PCI230P2_DAC_FIFOLEVEL_FULL
-#define PCI230P2_DAC_FIFOROOM_ONETOHALF		\
-	(PCI230P2_DAC_FIFOLEVEL_FULL - PCI230P2_DAC_FIFOLEVEL_HALF)
-#define PCI230P2_DAC_FIFOROOM_HALFTOFULL	1
-#define PCI230P2_DAC_FIFOROOM_FULL		0
-
-/*
- * ADCCON read/write values.
- */
-#define PCI230_ADC_TRIG_NONE		(0 << 0) /* No trigger */
-#define PCI230_ADC_TRIG_SW		(1 << 0) /* Software trigger trigger */
-#define PCI230_ADC_TRIG_EXTP		(2 << 0) /* EXTTRIG +ve edge trigger */
-#define PCI230_ADC_TRIG_EXTN		(3 << 0) /* EXTTRIG -ve edge trigger */
-#define PCI230_ADC_TRIG_Z2CT0		(4 << 0) /* CT0-OUT +ve edge trigger */
-#define PCI230_ADC_TRIG_Z2CT1		(5 << 0) /* CT1-OUT +ve edge trigger */
-#define PCI230_ADC_TRIG_Z2CT2		(6 << 0) /* CT2-OUT +ve edge trigger */
-#define PCI230_ADC_TRIG_MASK		(7 << 0)
-#define PCI230_ADC_IR_UNI		(0 << 3) /* Input range unipolar */
-#define PCI230_ADC_IR_BIP		(1 << 3) /* Input range bipolar */
-#define PCI230_ADC_IR_MASK		(1 << 3)
-#define PCI230_ADC_IM_SE		(0 << 4) /* Input mode single ended */
-#define PCI230_ADC_IM_DIF		(1 << 4) /* Input mode differential */
-#define PCI230_ADC_IM_MASK		(1 << 4)
-#define PCI230_ADC_FIFO_EN		(1 << 8) /* FIFO enable */
-#define PCI230_ADC_INT_FIFO_EMPTY	(0 << 9)
-#define PCI230_ADC_INT_FIFO_NEMPTY	(1 << 9) /* FIFO interrupt not empty */
-#define PCI230_ADC_INT_FIFO_NHALF	(2 << 9)
-#define PCI230_ADC_INT_FIFO_HALF	(3 << 9) /* FIFO interrupt half full */
-#define PCI230_ADC_INT_FIFO_NFULL	(4 << 9)
-#define PCI230_ADC_INT_FIFO_FULL	(5 << 9) /* FIFO interrupt full */
-#define PCI230P_ADC_INT_FIFO_THRESH	(7 << 9) /* FIFO interrupt threshold */
-#define PCI230_ADC_INT_FIFO_MASK	(7 << 9)
-
-/*
- * ADCCON write-only, transient values.
- */
-#define PCI230_ADC_FIFO_RESET		(1 << 12) /* FIFO reset */
-#define PCI230_ADC_GLOB_RESET		(1 << 13) /* Global reset */
-
-/*
- * ADCCON read-only values.
- */
-#define PCI230_ADC_BUSY			(1 << 15) /* ADC busy */
-#define PCI230_ADC_FIFO_EMPTY		(1 << 12) /* FIFO empty */
-#define PCI230_ADC_FIFO_FULL		(1 << 13) /* FIFO full */
-#define PCI230_ADC_FIFO_HALF		(1 << 14) /* FIFO half full */
-#define PCI230_ADC_FIFO_FULL_LATCHED	(1 << 5)  /* FIFO overrun occurred */
-
-/*
- * PCI230 ADC FIFO levels.
- */
-#define PCI230_ADC_FIFOLEVEL_HALFFULL	2049	/* Value for FIFO half full */
-#define PCI230_ADC_FIFOLEVEL_FULL	4096	/* FIFO size */
-
-/*
- * PCI230+ EXTFUNC values.
- */
-/* Route EXTTRIG pin to external gate inputs. */
-#define PCI230P_EXTFUNC_GAT_EXTTRIG	(1 << 0)
-/* PCI230+ hardware version 2 values. */
-/* Allow DAC FIFO to be enabled. */
-#define PCI230P2_EXTFUNC_DACFIFO	(1 << 1)
-
-/*
- * Counter/timer clock input configuration sources.
- */
-#define CLK_CLK		0	/* reserved (channel-specific clock) */
-#define CLK_10MHZ	1	/* internal 10 MHz clock */
-#define CLK_1MHZ	2	/* internal 1 MHz clock */
-#define CLK_100KHZ	3	/* internal 100 kHz clock */
-#define CLK_10KHZ	4	/* internal 10 kHz clock */
-#define CLK_1KHZ	5	/* internal 1 kHz clock */
-#define CLK_OUTNM1	6	/* output of channel-1 modulo total */
-#define CLK_EXT		7	/* external clock */
-/* Macro to construct clock input configuration register value. */
-#define CLK_CONFIG(chan, src)	((((chan) & 3) << 3) | ((src) & 7))
-
-/*
- * Counter/timer gate input configuration sources.
- */
-#define GAT_VCC		0	/* VCC (i.e. enabled) */
-#define GAT_GND		1	/* GND (i.e. disabled) */
-#define GAT_EXT		2	/* external gate input (PPCn on PCI230) */
-#define GAT_NOUTNM2	3	/* inverted output of channel-2 modulo total */
-/* Macro to construct gate input configuration register value. */
-#define GAT_CONFIG(chan, src)	((((chan) & 3) << 3) | ((src) & 7))
-
-/*
- * Summary of CLK_OUTNM1 and GAT_NOUTNM2 connections for PCI230 and PCI260:
- *
- *              Channel's       Channel's
- *              clock input     gate input
- * Channel      CLK_OUTNM1      GAT_NOUTNM2
- * -------      ----------      -----------
- * Z2-CT0       Z2-CT2-OUT      /Z2-CT1-OUT
- * Z2-CT1       Z2-CT0-OUT      /Z2-CT2-OUT
- * Z2-CT2       Z2-CT1-OUT      /Z2-CT0-OUT
- */
-
-/*
- * Interrupt enables/status register values.
- */
-#define PCI230_INT_DISABLE		0
-#define PCI230_INT_PPI_C0		(1 << 0)
-#define PCI230_INT_PPI_C3		(1 << 1)
-#define PCI230_INT_ADC			(1 << 2)
-#define PCI230_INT_ZCLK_CT1		(1 << 5)
-/* For PCI230+ hardware version 2 when DAC FIFO enabled. */
-#define PCI230P2_INT_DAC		(1 << 4)
-
-/*
- * (Potentially) shared resources and their owners
- */
-enum {
-	RES_Z2CT0 = (1U << 0),	/* Z2-CT0 */
-	RES_Z2CT1 = (1U << 1),	/* Z2-CT1 */
-	RES_Z2CT2 = (1U << 2)	/* Z2-CT2 */
-};
-
-enum {
-	OWNER_AICMD,		/* Owned by AI command */
-	OWNER_AOCMD,		/* Owned by AO command */
-	NUM_OWNERS		/* Number of owners */
-};
-
-/*
- * Handy macros.
- */
-
-/* Combine old and new bits. */
-#define COMBINE(old, new, mask)	(((old) & ~(mask)) | ((new) & (mask)))
-
-/* Current CPU.  XXX should this be hard_smp_processor_id()? */
-#define THISCPU		smp_processor_id()
-
-/*
- * Board descriptions for the two boards supported.
- */
-
-struct pci230_board {
-	const char *name;
-	unsigned short id;
-	unsigned char ai_bits;
-	unsigned char ao_bits;
-	unsigned char min_hwver; /* Minimum hardware version supported. */
-	bool have_dio:1;
-};
-
-static const struct pci230_board pci230_boards[] = {
-	{
-		.name		= "pci230+",
-		.id		= PCI_DEVICE_ID_PCI230,
-		.ai_bits	= 16,
-		.ao_bits	= 12,
-		.have_dio	= true,
-		.min_hwver	= 1,
-	},
-	{
-		.name		= "pci260+",
-		.id		= PCI_DEVICE_ID_PCI260,
-		.ai_bits	= 16,
-		.min_hwver	= 1,
-	},
-	{
-		.name		= "pci230",
-		.id		= PCI_DEVICE_ID_PCI230,
-		.ai_bits	= 12,
-		.ao_bits	= 12,
-		.have_dio	= true,
-	},
-	{
-		.name		= "pci260",
-		.id		= PCI_DEVICE_ID_PCI260,
-		.ai_bits	= 12,
-	},
-};
-
-struct pci230_private {
-	spinlock_t isr_spinlock;	/* Interrupt spin lock */
-	spinlock_t res_spinlock;	/* Shared resources spin lock */
-	spinlock_t ai_stop_spinlock;	/* Spin lock for stopping AI command */
-	spinlock_t ao_stop_spinlock;	/* Spin lock for stopping AO command */
-	unsigned long daqio;		/* PCI230's DAQ I/O space */
-	int intr_cpuid;			/* ID of CPU running ISR */
-	unsigned short hwver;		/* Hardware version (for '+' models) */
-	unsigned short adccon;		/* ADCCON register value */
-	unsigned short daccon;		/* DACCON register value */
-	unsigned short adcfifothresh;	/* ADC FIFO threshold (PCI230+/260+) */
-	unsigned short adcg;		/* ADCG register value */
-	unsigned char ier;		/* Interrupt enable bits */
-	unsigned char res_owned[NUM_OWNERS]; /* Owned resources */
-	bool intr_running:1;		/* Flag set in interrupt routine */
-	bool ai_bipolar:1;		/* Flag AI range is bipolar */
-	bool ao_bipolar:1;		/* Flag AO range is bipolar */
-	bool ai_cmd_started:1;		/* Flag AI command started */
-	bool ao_cmd_started:1;		/* Flag AO command started */
-};
-
-/* PCI230 clock source periods in ns */
-static const unsigned int pci230_timebase[8] = {
-	[CLK_10MHZ]	= I8254_OSC_BASE_10MHZ,
-	[CLK_1MHZ]	= I8254_OSC_BASE_1MHZ,
-	[CLK_100KHZ]	= I8254_OSC_BASE_100KHZ,
-	[CLK_10KHZ]	= I8254_OSC_BASE_10KHZ,
-	[CLK_1KHZ]	= I8254_OSC_BASE_1KHZ,
-};
-
-/* PCI230 analogue input range table */
-static const struct comedi_lrange pci230_ai_range = {
-	7, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5)
-	}
-};
-
-/* PCI230 analogue gain bits for each input range. */
-static const unsigned char pci230_ai_gain[7] = { 0, 1, 2, 3, 1, 2, 3 };
-
-/* PCI230 analogue output range table */
-static const struct comedi_lrange pci230_ao_range = {
-	2, {
-		UNI_RANGE(10),
-		BIP_RANGE(10)
-	}
-};
-
-static unsigned short pci230_ai_read(struct comedi_device *dev)
-{
-	const struct pci230_board *board = dev->board_ptr;
-	struct pci230_private *devpriv = dev->private;
-	unsigned short data;
-
-	/* Read sample. */
-	data = inw(devpriv->daqio + PCI230_ADCDATA);
-	/*
-	 * PCI230 is 12 bit - stored in upper bits of 16 bit register
-	 * (lower four bits reserved for expansion).  PCI230+ is 16 bit AI.
-	 *
-	 * If a bipolar range was specified, mangle it
-	 * (twos complement->straight binary).
-	 */
-	if (devpriv->ai_bipolar)
-		data ^= 0x8000;
-	data >>= (16 - board->ai_bits);
-	return data;
-}
-
-static unsigned short pci230_ao_mangle_datum(struct comedi_device *dev,
-					     unsigned short datum)
-{
-	const struct pci230_board *board = dev->board_ptr;
-	struct pci230_private *devpriv = dev->private;
-
-	/*
-	 * PCI230 is 12 bit - stored in upper bits of 16 bit register (lower
-	 * four bits reserved for expansion).  PCI230+ is also 12 bit AO.
-	 */
-	datum <<= (16 - board->ao_bits);
-	/*
-	 * If a bipolar range was specified, mangle it
-	 * (straight binary->twos complement).
-	 */
-	if (devpriv->ao_bipolar)
-		datum ^= 0x8000;
-	return datum;
-}
-
-static void pci230_ao_write_nofifo(struct comedi_device *dev,
-				   unsigned short datum, unsigned int chan)
-{
-	struct pci230_private *devpriv = dev->private;
-
-	/* Write mangled datum to appropriate DACOUT register. */
-	outw(pci230_ao_mangle_datum(dev, datum),
-	     devpriv->daqio + ((chan == 0) ? PCI230_DACOUT1 : PCI230_DACOUT2));
-}
-
-static void pci230_ao_write_fifo(struct comedi_device *dev,
-				 unsigned short datum, unsigned int chan)
-{
-	struct pci230_private *devpriv = dev->private;
-
-	/* Write mangled datum to appropriate DACDATA register. */
-	outw(pci230_ao_mangle_datum(dev, datum),
-	     devpriv->daqio + PCI230P2_DACDATA);
-}
-
-static bool pci230_claim_shared(struct comedi_device *dev,
-				unsigned char res_mask, unsigned int owner)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned int o;
-	unsigned long irqflags;
-
-	spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
-	for (o = 0; o < NUM_OWNERS; o++) {
-		if (o == owner)
-			continue;
-		if (devpriv->res_owned[o] & res_mask) {
-			spin_unlock_irqrestore(&devpriv->res_spinlock,
-					       irqflags);
-			return false;
-		}
-	}
-	devpriv->res_owned[owner] |= res_mask;
-	spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
-	return true;
-}
-
-static void pci230_release_shared(struct comedi_device *dev,
-				  unsigned char res_mask, unsigned int owner)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned long irqflags;
-
-	spin_lock_irqsave(&devpriv->res_spinlock, irqflags);
-	devpriv->res_owned[owner] &= ~res_mask;
-	spin_unlock_irqrestore(&devpriv->res_spinlock, irqflags);
-}
-
-static void pci230_release_all_resources(struct comedi_device *dev,
-					 unsigned int owner)
-{
-	pci230_release_shared(dev, (unsigned char)~0, owner);
-}
-
-static unsigned int pci230_divide_ns(uint64_t ns, unsigned int timebase,
-				     unsigned int flags)
-{
-	uint64_t div;
-	unsigned int rem;
-
-	div = ns;
-	rem = do_div(div, timebase);
-	switch (flags & CMDF_ROUND_MASK) {
-	default:
-	case CMDF_ROUND_NEAREST:
-		div += (rem + (timebase / 2)) / timebase;
-		break;
-	case CMDF_ROUND_DOWN:
-		break;
-	case CMDF_ROUND_UP:
-		div += (rem + timebase - 1) / timebase;
-		break;
-	}
-	return div > UINT_MAX ? UINT_MAX : (unsigned int)div;
-}
-
-/*
- * Given desired period in ns, returns the required internal clock source
- * and gets the initial count.
- */
-static unsigned int pci230_choose_clk_count(uint64_t ns, unsigned int *count,
-					    unsigned int flags)
-{
-	unsigned int clk_src, cnt;
-
-	for (clk_src = CLK_10MHZ;; clk_src++) {
-		cnt = pci230_divide_ns(ns, pci230_timebase[clk_src], flags);
-		if (cnt <= 65536 || clk_src == CLK_1KHZ)
-			break;
-	}
-	*count = cnt;
-	return clk_src;
-}
-
-static void pci230_ns_to_single_timer(unsigned int *ns, unsigned int flags)
-{
-	unsigned int count;
-	unsigned int clk_src;
-
-	clk_src = pci230_choose_clk_count(*ns, &count, flags);
-	*ns = count * pci230_timebase[clk_src];
-}
-
-static void pci230_ct_setup_ns_mode(struct comedi_device *dev, unsigned int ct,
-				    unsigned int mode, uint64_t ns,
-				    unsigned int flags)
-{
-	unsigned int clk_src;
-	unsigned int count;
-
-	/* Set mode. */
-	comedi_8254_set_mode(dev->pacer, ct, mode);
-	/* Determine clock source and count. */
-	clk_src = pci230_choose_clk_count(ns, &count, flags);
-	/* Program clock source. */
-	outb(CLK_CONFIG(ct, clk_src), dev->iobase + PCI230_ZCLK_SCE);
-	/* Set initial count. */
-	if (count >= 65536)
-		count = 0;
-
-	comedi_8254_write(dev->pacer, ct, count);
-}
-
-static void pci230_cancel_ct(struct comedi_device *dev, unsigned int ct)
-{
-	/* Counter ct, 8254 mode 1, initial count not written. */
-	comedi_8254_set_mode(dev->pacer, ct, I8254_MODE1);
-}
-
-static int pci230_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned int status;
-
-	status = inw(devpriv->daqio + PCI230_ADCCON);
-	if ((status & PCI230_ADC_FIFO_EMPTY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int pci230_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned int n;
-	unsigned int chan, range, aref;
-	unsigned int gainshift;
-	unsigned short adccon, adcen;
-	int ret;
-
-	/* Unpack channel and range. */
-	chan = CR_CHAN(insn->chanspec);
-	range = CR_RANGE(insn->chanspec);
-	aref = CR_AREF(insn->chanspec);
-	if (aref == AREF_DIFF) {
-		/* Differential. */
-		if (chan >= s->n_chan / 2) {
-			dev_dbg(dev->class_dev,
-				"%s: differential channel number out of range 0 to %u\n",
-				__func__, (s->n_chan / 2) - 1);
-			return -EINVAL;
-		}
-	}
-
-	/*
-	 * Use Z2-CT2 as a conversion trigger instead of the built-in
-	 * software trigger, as otherwise triggering of differential channels
-	 * doesn't work properly for some versions of PCI230/260.  Also set
-	 * FIFO mode because the ADC busy bit only works for software triggers.
-	 */
-	adccon = PCI230_ADC_TRIG_Z2CT2 | PCI230_ADC_FIFO_EN;
-	/* Set Z2-CT2 output low to avoid any false triggers. */
-	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE0);
-	devpriv->ai_bipolar = comedi_range_is_bipolar(s, range);
-	if (aref == AREF_DIFF) {
-		/* Differential. */
-		gainshift = chan * 2;
-		if (devpriv->hwver == 0) {
-			/*
-			 * Original PCI230/260 expects both inputs of the
-			 * differential channel to be enabled.
-			 */
-			adcen = 3 << gainshift;
-		} else {
-			/*
-			 * PCI230+/260+ expects only one input of the
-			 * differential channel to be enabled.
-			 */
-			adcen = 1 << gainshift;
-		}
-		adccon |= PCI230_ADC_IM_DIF;
-	} else {
-		/* Single ended. */
-		adcen = 1 << chan;
-		gainshift = chan & ~1;
-		adccon |= PCI230_ADC_IM_SE;
-	}
-	devpriv->adcg = (devpriv->adcg & ~(3 << gainshift)) |
-			(pci230_ai_gain[range] << gainshift);
-	if (devpriv->ai_bipolar)
-		adccon |= PCI230_ADC_IR_BIP;
-	else
-		adccon |= PCI230_ADC_IR_UNI;
-
-	/*
-	 * Enable only this channel in the scan list - otherwise by default
-	 * we'll get one sample from each channel.
-	 */
-	outw(adcen, devpriv->daqio + PCI230_ADCEN);
-
-	/* Set gain for channel. */
-	outw(devpriv->adcg, devpriv->daqio + PCI230_ADCG);
-
-	/* Specify uni/bip, se/diff, conversion source, and reset FIFO. */
-	devpriv->adccon = adccon;
-	outw(adccon | PCI230_ADC_FIFO_RESET, devpriv->daqio + PCI230_ADCCON);
-
-	/* Convert n samples */
-	for (n = 0; n < insn->n; n++) {
-		/*
-		 * Trigger conversion by toggling Z2-CT2 output
-		 * (finish with output high).
-		 */
-		comedi_8254_set_mode(dev->pacer, 2, I8254_MODE0);
-		comedi_8254_set_mode(dev->pacer, 2, I8254_MODE1);
-
-		/* wait for conversion to end */
-		ret = comedi_timeout(dev, s, insn, pci230_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* read data */
-		data[n] = pci230_ai_read(dev);
-	}
-
-	/* return the number of samples read/written */
-	return n;
-}
-
-static int pci230_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	/*
-	 * Set range - see analogue output range table; 0 => unipolar 10V,
-	 * 1 => bipolar +/-10V range scale
-	 */
-	devpriv->ao_bipolar = comedi_range_is_bipolar(s, range);
-	outw(range, devpriv->daqio + PCI230_DACCON);
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		pci230_ao_write_nofifo(dev, val, chan);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pci230_ao_check_chanlist(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_cmd *cmd)
-{
-	unsigned int prev_chan = CR_CHAN(cmd->chanlist[0]);
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-
-		if (chan < prev_chan) {
-			dev_dbg(dev->class_dev,
-				"%s: channel numbers must increase\n",
-				__func__);
-			return -EINVAL;
-		}
-
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"%s: channels must have the same range\n",
-				__func__);
-			return -EINVAL;
-		}
-
-		prev_chan = chan;
-	}
-
-	return 0;
-}
-
-static int pci230_ao_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	const struct pci230_board *board = dev->board_ptr;
-	struct pci230_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int tmp;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
-
-	tmp = TRIG_TIMER | TRIG_INT;
-	if (board->min_hwver > 0 && devpriv->hwver >= 2) {
-		/*
-		 * For PCI230+ hardware version 2 onwards, allow external
-		 * trigger from EXTTRIG/EXTCONVCLK input (PCI230+ pin 25).
-		 *
-		 * FIXME: The permitted scan_begin_src values shouldn't depend
-		 * on devpriv->hwver (the detected card's actual hardware
-		 * version).  They should only depend on board->min_hwver
-		 * (the static capabilities of the configured card).  To fix
-		 * it, a new card model, e.g. "pci230+2" would have to be
-		 * defined with min_hwver set to 2.  It doesn't seem worth it
-		 * for this alone.  At the moment, please consider
-		 * scan_begin_src==TRIG_EXT support to be a bonus rather than a
-		 * guarantee!
-		 */
-		tmp |= TRIG_EXT;
-	}
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, tmp);
-
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-#define MAX_SPEED_AO	8000	/* 8000 ns => 125 kHz */
-/*
- * Comedi limit due to unsigned int cmd.  Driver limit =
- * 2^16 (16bit * counter) * 1000000ns (1kHz onboard clock) = 65.536s
- */
-#define MIN_SPEED_AO	4294967295u	/* 4294967295ns = 4.29s */
-
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    MAX_SPEED_AO);
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-						    MIN_SPEED_AO);
-		break;
-	case TRIG_EXT:
-		/*
-		 * External trigger - for PCI230+ hardware version 2 onwards.
-		 */
-		/* Trigger number must be 0. */
-		if (cmd->scan_begin_arg & ~CR_FLAGS_MASK) {
-			cmd->scan_begin_arg = COMBINE(cmd->scan_begin_arg, 0,
-						      ~CR_FLAGS_MASK);
-			err |= -EINVAL;
-		}
-		/*
-		 * The only flags allowed are CR_EDGE and CR_INVERT.
-		 * The CR_EDGE flag is ignored.
-		 */
-		if (cmd->scan_begin_arg & CR_FLAGS_MASK &
-		    ~(CR_EDGE | CR_INVERT)) {
-			cmd->scan_begin_arg =
-			    COMBINE(cmd->scan_begin_arg, 0,
-				    CR_FLAGS_MASK & ~(CR_EDGE | CR_INVERT));
-			err |= -EINVAL;
-		}
-		break;
-	default:
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-		break;
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		tmp = cmd->scan_begin_arg;
-		pci230_ns_to_single_timer(&cmd->scan_begin_arg, cmd->flags);
-		if (tmp != cmd->scan_begin_arg)
-			err++;
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= pci230_ao_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static void pci230_ao_stop(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned long irqflags;
-	unsigned char intsrc;
-	bool started;
-	struct comedi_cmd *cmd;
-
-	spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
-	started = devpriv->ao_cmd_started;
-	devpriv->ao_cmd_started = false;
-	spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
-	if (!started)
-		return;
-	cmd = &s->async->cmd;
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/* Stop scan rate generator. */
-		pci230_cancel_ct(dev, 1);
-	}
-	/* Determine interrupt source. */
-	if (devpriv->hwver < 2) {
-		/* Not using DAC FIFO.  Using CT1 interrupt. */
-		intsrc = PCI230_INT_ZCLK_CT1;
-	} else {
-		/* Using DAC FIFO interrupt. */
-		intsrc = PCI230P2_INT_DAC;
-	}
-	/*
-	 * Disable interrupt and wait for interrupt routine to finish running
-	 * unless we are called from the interrupt routine.
-	 */
-	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-	devpriv->ier &= ~intsrc;
-	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-	}
-	outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
-	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-	if (devpriv->hwver >= 2) {
-		/*
-		 * Using DAC FIFO.  Reset FIFO, clear underrun error,
-		 * disable FIFO.
-		 */
-		devpriv->daccon &= PCI230_DAC_OR_MASK;
-		outw(devpriv->daccon | PCI230P2_DAC_FIFO_RESET |
-		     PCI230P2_DAC_FIFO_UNDERRUN_CLEAR,
-		     devpriv->daqio + PCI230_DACCON);
-	}
-	/* Release resources. */
-	pci230_release_all_resources(dev, OWNER_AOCMD);
-}
-
-static void pci230_handle_ao_nofifo(struct comedi_device *dev,
-				    struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned short data;
-	int i;
-
-	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
-		return;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if (!comedi_buf_read_samples(s, &data, 1)) {
-			async->events |= COMEDI_CB_OVERFLOW;
-			return;
-		}
-		pci230_ao_write_nofifo(dev, data, chan);
-		s->readback[chan] = data;
-	}
-
-	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
-		async->events |= COMEDI_CB_EOA;
-}
-
-/*
- * Loads DAC FIFO (if using it) from buffer.
- * Returns false if AO finished due to completion or error, true if still going.
- */
-static bool pci230_handle_ao_fifo(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int num_scans = comedi_nscans_left(s, 0);
-	unsigned int room;
-	unsigned short dacstat;
-	unsigned int i, n;
-	unsigned int events = 0;
-
-	/* Get DAC FIFO status. */
-	dacstat = inw(devpriv->daqio + PCI230_DACCON);
-
-	if (cmd->stop_src == TRIG_COUNT && num_scans == 0)
-		events |= COMEDI_CB_EOA;
-
-	if (events == 0) {
-		/* Check for FIFO underrun. */
-		if (dacstat & PCI230P2_DAC_FIFO_UNDERRUN_LATCHED) {
-			dev_err(dev->class_dev, "AO FIFO underrun\n");
-			events |= COMEDI_CB_OVERFLOW | COMEDI_CB_ERROR;
-		}
-		/*
-		 * Check for buffer underrun if FIFO less than half full
-		 * (otherwise there will be loads of "DAC FIFO not half full"
-		 * interrupts).
-		 */
-		if (num_scans == 0 &&
-		    (dacstat & PCI230P2_DAC_FIFO_HALF) == 0) {
-			dev_err(dev->class_dev, "AO buffer underrun\n");
-			events |= COMEDI_CB_OVERFLOW | COMEDI_CB_ERROR;
-		}
-	}
-	if (events == 0) {
-		/* Determine how much room is in the FIFO (in samples). */
-		if (dacstat & PCI230P2_DAC_FIFO_FULL)
-			room = PCI230P2_DAC_FIFOROOM_FULL;
-		else if (dacstat & PCI230P2_DAC_FIFO_HALF)
-			room = PCI230P2_DAC_FIFOROOM_HALFTOFULL;
-		else if (dacstat & PCI230P2_DAC_FIFO_EMPTY)
-			room = PCI230P2_DAC_FIFOROOM_EMPTY;
-		else
-			room = PCI230P2_DAC_FIFOROOM_ONETOHALF;
-		/* Convert room to number of scans that can be added. */
-		room /= cmd->chanlist_len;
-		/* Determine number of scans to process. */
-		if (num_scans > room)
-			num_scans = room;
-		/* Process scans. */
-		for (n = 0; n < num_scans; n++) {
-			for (i = 0; i < cmd->chanlist_len; i++) {
-				unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-				unsigned short datum;
-
-				comedi_buf_read_samples(s, &datum, 1);
-				pci230_ao_write_fifo(dev, datum, chan);
-				s->readback[chan] = datum;
-			}
-		}
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg) {
-			/*
-			 * All data for the command has been written
-			 * to FIFO.  Set FIFO interrupt trigger level
-			 * to 'empty'.
-			 */
-			devpriv->daccon &= ~PCI230P2_DAC_INT_FIFO_MASK;
-			devpriv->daccon |= PCI230P2_DAC_INT_FIFO_EMPTY;
-			outw(devpriv->daccon, devpriv->daqio + PCI230_DACCON);
-		}
-		/* Check if FIFO underrun occurred while writing to FIFO. */
-		dacstat = inw(devpriv->daqio + PCI230_DACCON);
-		if (dacstat & PCI230P2_DAC_FIFO_UNDERRUN_LATCHED) {
-			dev_err(dev->class_dev, "AO FIFO underrun\n");
-			events |= COMEDI_CB_OVERFLOW | COMEDI_CB_ERROR;
-		}
-	}
-	async->events |= events;
-	return !(async->events & COMEDI_CB_CANCEL_MASK);
-}
-
-static int pci230_ao_inttrig_scan_begin(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					unsigned int trig_num)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned long irqflags;
-
-	if (trig_num)
-		return -EINVAL;
-
-	spin_lock_irqsave(&devpriv->ao_stop_spinlock, irqflags);
-	if (!devpriv->ao_cmd_started) {
-		spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
-		return 1;
-	}
-	/* Perform scan. */
-	if (devpriv->hwver < 2) {
-		/* Not using DAC FIFO. */
-		spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
-		pci230_handle_ao_nofifo(dev, s);
-		comedi_handle_events(dev, s);
-	} else {
-		/* Using DAC FIFO. */
-		/* Read DACSWTRIG register to trigger conversion. */
-		inw(devpriv->daqio + PCI230P2_DACSWTRIG);
-		spin_unlock_irqrestore(&devpriv->ao_stop_spinlock, irqflags);
-	}
-	/* Delay.  Should driver be responsible for this? */
-	/* XXX TODO: See if DAC busy bit can be used. */
-	udelay(8);
-	return 1;
-}
-
-static void pci230_ao_start(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned long irqflags;
-
-	devpriv->ao_cmd_started = true;
-
-	if (devpriv->hwver >= 2) {
-		/* Using DAC FIFO. */
-		unsigned short scantrig;
-		bool run;
-
-		/* Preload FIFO data. */
-		run = pci230_handle_ao_fifo(dev, s);
-		comedi_handle_events(dev, s);
-		if (!run) {
-			/* Stopped. */
-			return;
-		}
-		/* Set scan trigger source. */
-		switch (cmd->scan_begin_src) {
-		case TRIG_TIMER:
-			scantrig = PCI230P2_DAC_TRIG_Z2CT1;
-			break;
-		case TRIG_EXT:
-			/* Trigger on EXTTRIG/EXTCONVCLK pin. */
-			if ((cmd->scan_begin_arg & CR_INVERT) == 0) {
-				/* +ve edge */
-				scantrig = PCI230P2_DAC_TRIG_EXTP;
-			} else {
-				/* -ve edge */
-				scantrig = PCI230P2_DAC_TRIG_EXTN;
-			}
-			break;
-		case TRIG_INT:
-			scantrig = PCI230P2_DAC_TRIG_SW;
-			break;
-		default:
-			/* Shouldn't get here. */
-			scantrig = PCI230P2_DAC_TRIG_NONE;
-			break;
-		}
-		devpriv->daccon =
-		    (devpriv->daccon & ~PCI230P2_DAC_TRIG_MASK) | scantrig;
-		outw(devpriv->daccon, devpriv->daqio + PCI230_DACCON);
-	}
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		if (devpriv->hwver < 2) {
-			/* Not using DAC FIFO. */
-			/* Enable CT1 timer interrupt. */
-			spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-			devpriv->ier |= PCI230_INT_ZCLK_CT1;
-			outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
-			spin_unlock_irqrestore(&devpriv->isr_spinlock,
-					       irqflags);
-		}
-		/* Set CT1 gate high to start counting. */
-		outb(GAT_CONFIG(1, GAT_VCC), dev->iobase + PCI230_ZGAT_SCE);
-		break;
-	case TRIG_INT:
-		async->inttrig = pci230_ao_inttrig_scan_begin;
-		break;
-	}
-	if (devpriv->hwver >= 2) {
-		/* Using DAC FIFO.  Enable DAC FIFO interrupt. */
-		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-		devpriv->ier |= PCI230P2_INT_DAC;
-		outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
-		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-	}
-}
-
-static int pci230_ao_inttrig_start(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int trig_num)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_src)
-		return -EINVAL;
-
-	s->async->inttrig = NULL;
-	pci230_ao_start(dev, s);
-
-	return 1;
-}
-
-static int pci230_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned short daccon;
-	unsigned int range;
-
-	/* Get the command. */
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/* Claim Z2-CT1. */
-		if (!pci230_claim_shared(dev, RES_Z2CT1, OWNER_AOCMD))
-			return -EBUSY;
-	}
-
-	/*
-	 * Set range - see analogue output range table; 0 => unipolar 10V,
-	 * 1 => bipolar +/-10V range scale
-	 */
-	range = CR_RANGE(cmd->chanlist[0]);
-	devpriv->ao_bipolar = comedi_range_is_bipolar(s, range);
-	daccon = devpriv->ao_bipolar ? PCI230_DAC_OR_BIP : PCI230_DAC_OR_UNI;
-	/* Use DAC FIFO for hardware version 2 onwards. */
-	if (devpriv->hwver >= 2) {
-		unsigned short dacen;
-		unsigned int i;
-
-		dacen = 0;
-		for (i = 0; i < cmd->chanlist_len; i++)
-			dacen |= 1 << CR_CHAN(cmd->chanlist[i]);
-
-		/* Set channel scan list. */
-		outw(dacen, devpriv->daqio + PCI230P2_DACEN);
-		/*
-		 * Enable DAC FIFO.
-		 * Set DAC scan source to 'none'.
-		 * Set DAC FIFO interrupt trigger level to 'not half full'.
-		 * Reset DAC FIFO and clear underrun.
-		 *
-		 * N.B. DAC FIFO interrupts are currently disabled.
-		 */
-		daccon |= PCI230P2_DAC_FIFO_EN | PCI230P2_DAC_FIFO_RESET |
-			  PCI230P2_DAC_FIFO_UNDERRUN_CLEAR |
-			  PCI230P2_DAC_TRIG_NONE | PCI230P2_DAC_INT_FIFO_NHALF;
-	}
-
-	/* Set DACCON. */
-	outw(daccon, devpriv->daqio + PCI230_DACCON);
-	/* Preserve most of DACCON apart from write-only, transient bits. */
-	devpriv->daccon = daccon & ~(PCI230P2_DAC_FIFO_RESET |
-				     PCI230P2_DAC_FIFO_UNDERRUN_CLEAR);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/*
-		 * Set the counter timer 1 to the specified scan frequency.
-		 * cmd->scan_begin_arg is sampling period in ns.
-		 * Gate it off for now.
-		 */
-		outb(GAT_CONFIG(1, GAT_GND), dev->iobase + PCI230_ZGAT_SCE);
-		pci230_ct_setup_ns_mode(dev, 1, I8254_MODE3,
-					cmd->scan_begin_arg,
-					cmd->flags);
-	}
-
-	/* N.B. cmd->start_src == TRIG_INT */
-	s->async->inttrig = pci230_ao_inttrig_start;
-
-	return 0;
-}
-
-static int pci230_ao_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	pci230_ao_stop(dev, s);
-	return 0;
-}
-
-static int pci230_ai_check_scan_period(struct comedi_cmd *cmd)
-{
-	unsigned int min_scan_period, chanlist_len;
-	int err = 0;
-
-	chanlist_len = cmd->chanlist_len;
-	if (cmd->chanlist_len == 0)
-		chanlist_len = 1;
-
-	min_scan_period = chanlist_len * cmd->convert_arg;
-	if (min_scan_period < chanlist_len ||
-	    min_scan_period < cmd->convert_arg) {
-		/* Arithmetic overflow. */
-		min_scan_period = UINT_MAX;
-		err++;
-	}
-	if (cmd->scan_begin_arg < min_scan_period) {
-		cmd->scan_begin_arg = min_scan_period;
-		err++;
-	}
-
-	return !err;
-}
-
-static int pci230_ai_check_chanlist(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_cmd *cmd)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned int max_diff_chan = (s->n_chan / 2) - 1;
-	unsigned int prev_chan = 0;
-	unsigned int prev_range = 0;
-	unsigned int prev_aref = 0;
-	bool prev_bipolar = false;
-	unsigned int subseq_len = 0;
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chanspec = cmd->chanlist[i];
-		unsigned int chan = CR_CHAN(chanspec);
-		unsigned int range = CR_RANGE(chanspec);
-		unsigned int aref = CR_AREF(chanspec);
-		bool bipolar = comedi_range_is_bipolar(s, range);
-
-		if (aref == AREF_DIFF && chan >= max_diff_chan) {
-			dev_dbg(dev->class_dev,
-				"%s: differential channel number out of range 0 to %u\n",
-				__func__, max_diff_chan);
-			return -EINVAL;
-		}
-
-		if (i > 0) {
-			/*
-			 * Channel numbers must strictly increase or
-			 * subsequence must repeat exactly.
-			 */
-			if (chan <= prev_chan && subseq_len == 0)
-				subseq_len = i;
-
-			if (subseq_len > 0 &&
-			    cmd->chanlist[i % subseq_len] != chanspec) {
-				dev_dbg(dev->class_dev,
-					"%s: channel numbers must increase or sequence must repeat exactly\n",
-					__func__);
-				return -EINVAL;
-			}
-
-			if (aref != prev_aref) {
-				dev_dbg(dev->class_dev,
-					"%s: channel sequence analogue references must be all the same (single-ended or differential)\n",
-					__func__);
-				return -EINVAL;
-			}
-
-			if (bipolar != prev_bipolar) {
-				dev_dbg(dev->class_dev,
-					"%s: channel sequence ranges must be all bipolar or all unipolar\n",
-					__func__);
-				return -EINVAL;
-			}
-
-			if (aref != AREF_DIFF && range != prev_range &&
-			    ((chan ^ prev_chan) & ~1) == 0) {
-				dev_dbg(dev->class_dev,
-					"%s: single-ended channel pairs must have the same range\n",
-					__func__);
-				return -EINVAL;
-			}
-		}
-		prev_chan = chan;
-		prev_range = range;
-		prev_aref = aref;
-		prev_bipolar = bipolar;
-	}
-
-	if (subseq_len == 0)
-		subseq_len = cmd->chanlist_len;
-
-	if (cmd->chanlist_len % subseq_len) {
-		dev_dbg(dev->class_dev,
-			"%s: sequence must repeat exactly\n", __func__);
-		return -EINVAL;
-	}
-
-	/*
-	 * Buggy PCI230+ or PCI260+ requires channel 0 to be (first) in the
-	 * sequence if the sequence contains more than one channel. Hardware
-	 * versions 1 and 2 have the bug. There is no hardware version 3.
-	 *
-	 * Actually, there are two firmwares that report themselves as
-	 * hardware version 1 (the boards have different ADC chips with
-	 * slightly different timing requirements, which was supposed to
-	 * be invisible to software). The first one doesn't seem to have
-	 * the bug, but the second one does, and we can't tell them apart!
-	 */
-	if (devpriv->hwver > 0 && devpriv->hwver < 4) {
-		if (subseq_len > 1 && CR_CHAN(cmd->chanlist[0])) {
-			dev_info(dev->class_dev,
-				 "amplc_pci230: ai_cmdtest: Buggy PCI230+/260+ h/w version %u requires first channel of multi-channel sequence to be 0 (corrected in h/w version 4)\n",
-				 devpriv->hwver);
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int pci230_ai_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	const struct pci230_board *board = dev->board_ptr;
-	struct pci230_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int tmp;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-
-	tmp = TRIG_FOLLOW | TRIG_TIMER | TRIG_INT;
-	if (board->have_dio || board->min_hwver > 0) {
-		/*
-		 * Unfortunately, we cannot trigger a scan off an external
-		 * source on the PCI260 board, since it uses the PPIC0 (DIO)
-		 * input, which isn't present on the PCI260.  For PCI260+
-		 * we can use the EXTTRIG/EXTCONVCLK input on pin 17 instead.
-		 */
-		tmp |= TRIG_EXT;
-	}
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, tmp);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_INT | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	/*
-	 * If scan_begin_src is not TRIG_FOLLOW, then a monostable will be
-	 * set up to generate a fixed number of timed conversion pulses.
-	 */
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->convert_src != TRIG_TIMER)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-#define MAX_SPEED_AI_SE		3200	/* PCI230 SE:   3200 ns => 312.5 kHz */
-#define MAX_SPEED_AI_DIFF	8000	/* PCI230 DIFF: 8000 ns => 125 kHz */
-#define MAX_SPEED_AI_PLUS	4000	/* PCI230+:     4000 ns => 250 kHz */
-/*
- * Comedi limit due to unsigned int cmd.  Driver limit =
- * 2^16 (16bit * counter) * 1000000ns (1kHz onboard clock) = 65.536s
- */
-#define MIN_SPEED_AI	4294967295u	/* 4294967295ns = 4.29s */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		unsigned int max_speed_ai;
-
-		if (devpriv->hwver == 0) {
-			/*
-			 * PCI230 or PCI260.  Max speed depends whether
-			 * single-ended or pseudo-differential.
-			 */
-			if (cmd->chanlist && cmd->chanlist_len > 0) {
-				/* Peek analogue reference of first channel. */
-				if (CR_AREF(cmd->chanlist[0]) == AREF_DIFF)
-					max_speed_ai = MAX_SPEED_AI_DIFF;
-				else
-					max_speed_ai = MAX_SPEED_AI_SE;
-
-			} else {
-				/* No channel list.  Assume single-ended. */
-				max_speed_ai = MAX_SPEED_AI_SE;
-			}
-		} else {
-			/* PCI230+ or PCI260+. */
-			max_speed_ai = MAX_SPEED_AI_PLUS;
-		}
-
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    max_speed_ai);
-		err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
-						    MIN_SPEED_AI);
-	} else if (cmd->convert_src == TRIG_EXT) {
-		/*
-		 * external trigger
-		 *
-		 * convert_arg == (CR_EDGE | 0)
-		 *                => trigger on +ve edge.
-		 * convert_arg == (CR_EDGE | CR_INVERT | 0)
-		 *                => trigger on -ve edge.
-		 */
-		if (cmd->convert_arg & CR_FLAGS_MASK) {
-			/* Trigger number must be 0. */
-			if (cmd->convert_arg & ~CR_FLAGS_MASK) {
-				cmd->convert_arg = COMBINE(cmd->convert_arg, 0,
-							   ~CR_FLAGS_MASK);
-				err |= -EINVAL;
-			}
-			/*
-			 * The only flags allowed are CR_INVERT and CR_EDGE.
-			 * CR_EDGE is required.
-			 */
-			if ((cmd->convert_arg & CR_FLAGS_MASK & ~CR_INVERT) !=
-			    CR_EDGE) {
-				/* Set CR_EDGE, preserve CR_INVERT. */
-				cmd->convert_arg =
-				    COMBINE(cmd->start_arg, CR_EDGE | 0,
-					    CR_FLAGS_MASK & ~CR_INVERT);
-				err |= -EINVAL;
-			}
-		} else {
-			/*
-			 * Backwards compatibility with previous versions:
-			 * convert_arg == 0 => trigger on -ve edge.
-			 * convert_arg == 1 => trigger on +ve edge.
-			 */
-			err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
-							    1);
-		}
-	} else {
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_EXT) {
-		/*
-		 * external "trigger" to begin each scan:
-		 * scan_begin_arg==0 => use PPC0 input -> gate of CT0 -> gate
-		 * of CT2 (sample convert trigger is CT2)
-		 */
-		if (cmd->scan_begin_arg & ~CR_FLAGS_MASK) {
-			cmd->scan_begin_arg = COMBINE(cmd->scan_begin_arg, 0,
-						      ~CR_FLAGS_MASK);
-			err |= -EINVAL;
-		}
-		/* The only flag allowed is CR_EDGE, which is ignored. */
-		if (cmd->scan_begin_arg & CR_FLAGS_MASK & ~CR_EDGE) {
-			cmd->scan_begin_arg = COMBINE(cmd->scan_begin_arg, 0,
-						      CR_FLAGS_MASK & ~CR_EDGE);
-			err |= -EINVAL;
-		}
-	} else if (cmd->scan_begin_src == TRIG_TIMER) {
-		/* N.B. cmd->convert_arg is also TRIG_TIMER */
-		if (!pci230_ai_check_scan_period(cmd))
-			err |= -EINVAL;
-
-	} else {
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	}
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		tmp = cmd->convert_arg;
-		pci230_ns_to_single_timer(&cmd->convert_arg, cmd->flags);
-		if (tmp != cmd->convert_arg)
-			err++;
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/* N.B. cmd->convert_arg is also TRIG_TIMER */
-		tmp = cmd->scan_begin_arg;
-		pci230_ns_to_single_timer(&cmd->scan_begin_arg, cmd->flags);
-		if (!pci230_ai_check_scan_period(cmd)) {
-			/* Was below minimum required.  Round up. */
-			pci230_ns_to_single_timer(&cmd->scan_begin_arg,
-						  CMDF_ROUND_UP);
-			pci230_ai_check_scan_period(cmd);
-		}
-		if (tmp != cmd->scan_begin_arg)
-			err++;
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= pci230_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static void pci230_ai_update_fifo_trigger_level(struct comedi_device *dev,
-						struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int wake;
-	unsigned short triglev;
-	unsigned short adccon;
-
-	if (cmd->flags & CMDF_WAKE_EOS)
-		wake = cmd->scan_end_arg - s->async->cur_chan;
-	else
-		wake = comedi_nsamples_left(s, PCI230_ADC_FIFOLEVEL_HALFFULL);
-
-	if (wake >= PCI230_ADC_FIFOLEVEL_HALFFULL) {
-		triglev = PCI230_ADC_INT_FIFO_HALF;
-	} else if (wake > 1 && devpriv->hwver > 0) {
-		/* PCI230+/260+ programmable FIFO interrupt level. */
-		if (devpriv->adcfifothresh != wake) {
-			devpriv->adcfifothresh = wake;
-			outw(wake, devpriv->daqio + PCI230P_ADCFFTH);
-		}
-		triglev = PCI230P_ADC_INT_FIFO_THRESH;
-	} else {
-		triglev = PCI230_ADC_INT_FIFO_NEMPTY;
-	}
-	adccon = (devpriv->adccon & ~PCI230_ADC_INT_FIFO_MASK) | triglev;
-	if (adccon != devpriv->adccon) {
-		devpriv->adccon = adccon;
-		outw(adccon, devpriv->daqio + PCI230_ADCCON);
-	}
-}
-
-static int pci230_ai_inttrig_convert(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     unsigned int trig_num)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned long irqflags;
-	unsigned int delayus;
-
-	if (trig_num)
-		return -EINVAL;
-
-	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
-	if (!devpriv->ai_cmd_started) {
-		spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
-		return 1;
-	}
-	/*
-	 * Trigger conversion by toggling Z2-CT2 output.
-	 * Finish with output high.
-	 */
-	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE0);
-	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE1);
-	/*
-	 * Delay.  Should driver be responsible for this?  An
-	 * alternative would be to wait until conversion is complete,
-	 * but we can't tell when it's complete because the ADC busy
-	 * bit has a different meaning when FIFO enabled (and when
-	 * FIFO not enabled, it only works for software triggers).
-	 */
-	if ((devpriv->adccon & PCI230_ADC_IM_MASK) == PCI230_ADC_IM_DIF &&
-	    devpriv->hwver == 0) {
-		/* PCI230/260 in differential mode */
-		delayus = 8;
-	} else {
-		/* single-ended or PCI230+/260+ */
-		delayus = 4;
-	}
-	spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
-	udelay(delayus);
-	return 1;
-}
-
-static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					unsigned int trig_num)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned long irqflags;
-	unsigned char zgat;
-
-	if (trig_num)
-		return -EINVAL;
-
-	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
-	if (devpriv->ai_cmd_started) {
-		/* Trigger scan by waggling CT0 gate source. */
-		zgat = GAT_CONFIG(0, GAT_GND);
-		outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-		zgat = GAT_CONFIG(0, GAT_VCC);
-		outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-	}
-	spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
-
-	return 1;
-}
-
-static void pci230_ai_stop(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned long irqflags;
-	struct comedi_cmd *cmd;
-	bool started;
-
-	spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags);
-	started = devpriv->ai_cmd_started;
-	devpriv->ai_cmd_started = false;
-	spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags);
-	if (!started)
-		return;
-	cmd = &s->async->cmd;
-	if (cmd->convert_src == TRIG_TIMER) {
-		/* Stop conversion rate generator. */
-		pci230_cancel_ct(dev, 2);
-	}
-	if (cmd->scan_begin_src != TRIG_FOLLOW) {
-		/* Stop scan period monostable. */
-		pci230_cancel_ct(dev, 0);
-	}
-	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-	/*
-	 * Disable ADC interrupt and wait for interrupt routine to finish
-	 * running unless we are called from the interrupt routine.
-	 */
-	devpriv->ier &= ~PCI230_INT_ADC;
-	while (devpriv->intr_running && devpriv->intr_cpuid != THISCPU) {
-		spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-		spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-	}
-	outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
-	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-	/*
-	 * Reset FIFO, disable FIFO and set start conversion source to none.
-	 * Keep se/diff and bip/uni settings.
-	 */
-	devpriv->adccon =
-	    (devpriv->adccon & (PCI230_ADC_IR_MASK | PCI230_ADC_IM_MASK)) |
-	    PCI230_ADC_TRIG_NONE;
-	outw(devpriv->adccon | PCI230_ADC_FIFO_RESET,
-	     devpriv->daqio + PCI230_ADCCON);
-	/* Release resources. */
-	pci230_release_all_resources(dev, OWNER_AICMD);
-}
-
-static void pci230_ai_start(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned long irqflags;
-	unsigned short conv;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-
-	devpriv->ai_cmd_started = true;
-
-	/* Enable ADC FIFO trigger level interrupt. */
-	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-	devpriv->ier |= PCI230_INT_ADC;
-	outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
-	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-
-	/*
-	 * Update conversion trigger source which is currently set
-	 * to CT2 output, which is currently stuck high.
-	 */
-	switch (cmd->convert_src) {
-	default:
-		conv = PCI230_ADC_TRIG_NONE;
-		break;
-	case TRIG_TIMER:
-		/* Using CT2 output. */
-		conv = PCI230_ADC_TRIG_Z2CT2;
-		break;
-	case TRIG_EXT:
-		if (cmd->convert_arg & CR_EDGE) {
-			if ((cmd->convert_arg & CR_INVERT) == 0) {
-				/* Trigger on +ve edge. */
-				conv = PCI230_ADC_TRIG_EXTP;
-			} else {
-				/* Trigger on -ve edge. */
-				conv = PCI230_ADC_TRIG_EXTN;
-			}
-		} else {
-			/* Backwards compatibility. */
-			if (cmd->convert_arg) {
-				/* Trigger on +ve edge. */
-				conv = PCI230_ADC_TRIG_EXTP;
-			} else {
-				/* Trigger on -ve edge. */
-				conv = PCI230_ADC_TRIG_EXTN;
-			}
-		}
-		break;
-	case TRIG_INT:
-		/*
-		 * Use CT2 output for software trigger due to problems
-		 * in differential mode on PCI230/260.
-		 */
-		conv = PCI230_ADC_TRIG_Z2CT2;
-		break;
-	}
-	devpriv->adccon = (devpriv->adccon & ~PCI230_ADC_TRIG_MASK) | conv;
-	outw(devpriv->adccon, devpriv->daqio + PCI230_ADCCON);
-	if (cmd->convert_src == TRIG_INT)
-		async->inttrig = pci230_ai_inttrig_convert;
-
-	/*
-	 * Update FIFO interrupt trigger level, which is currently
-	 * set to "full".
-	 */
-	pci230_ai_update_fifo_trigger_level(dev, s);
-	if (cmd->convert_src == TRIG_TIMER) {
-		/* Update timer gates. */
-		unsigned char zgat;
-
-		if (cmd->scan_begin_src != TRIG_FOLLOW) {
-			/*
-			 * Conversion timer CT2 needs to be gated by
-			 * inverted output of monostable CT2.
-			 */
-			zgat = GAT_CONFIG(2, GAT_NOUTNM2);
-		} else {
-			/*
-			 * Conversion timer CT2 needs to be gated on
-			 * continuously.
-			 */
-			zgat = GAT_CONFIG(2, GAT_VCC);
-		}
-		outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-		if (cmd->scan_begin_src != TRIG_FOLLOW) {
-			/* Set monostable CT0 trigger source. */
-			switch (cmd->scan_begin_src) {
-			default:
-				zgat = GAT_CONFIG(0, GAT_VCC);
-				break;
-			case TRIG_EXT:
-				/*
-				 * For CT0 on PCI230, the external trigger
-				 * (gate) signal comes from PPC0, which is
-				 * channel 16 of the DIO subdevice.  The
-				 * application needs to configure this as an
-				 * input in order to use it as an external scan
-				 * trigger.
-				 */
-				zgat = GAT_CONFIG(0, GAT_EXT);
-				break;
-			case TRIG_TIMER:
-				/*
-				 * Monostable CT0 triggered by rising edge on
-				 * inverted output of CT1 (falling edge on CT1).
-				 */
-				zgat = GAT_CONFIG(0, GAT_NOUTNM2);
-				break;
-			case TRIG_INT:
-				/*
-				 * Monostable CT0 is triggered by inttrig
-				 * function waggling the CT0 gate source.
-				 */
-				zgat = GAT_CONFIG(0, GAT_VCC);
-				break;
-			}
-			outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-			switch (cmd->scan_begin_src) {
-			case TRIG_TIMER:
-				/*
-				 * Scan period timer CT1 needs to be
-				 * gated on to start counting.
-				 */
-				zgat = GAT_CONFIG(1, GAT_VCC);
-				outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-				break;
-			case TRIG_INT:
-				async->inttrig = pci230_ai_inttrig_scan_begin;
-				break;
-			}
-		}
-	} else if (cmd->convert_src != TRIG_INT) {
-		/* No longer need Z2-CT2. */
-		pci230_release_shared(dev, RES_Z2CT2, OWNER_AICMD);
-	}
-}
-
-static int pci230_ai_inttrig_start(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int trig_num)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	s->async->inttrig = NULL;
-	pci230_ai_start(dev, s);
-
-	return 1;
-}
-
-static void pci230_handle_ai(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int status_fifo;
-	unsigned int i;
-	unsigned int nsamples;
-	unsigned int fifoamount;
-	unsigned short val;
-
-	/* Determine number of samples to read. */
-	nsamples = comedi_nsamples_left(s, PCI230_ADC_FIFOLEVEL_HALFFULL);
-	if (nsamples == 0)
-		return;
-
-	fifoamount = 0;
-	for (i = 0; i < nsamples; i++) {
-		if (fifoamount == 0) {
-			/* Read FIFO state. */
-			status_fifo = inw(devpriv->daqio + PCI230_ADCCON);
-			if (status_fifo & PCI230_ADC_FIFO_FULL_LATCHED) {
-				/*
-				 * Report error otherwise FIFO overruns will go
-				 * unnoticed by the caller.
-				 */
-				dev_err(dev->class_dev, "AI FIFO overrun\n");
-				async->events |= COMEDI_CB_ERROR;
-				break;
-			} else if (status_fifo & PCI230_ADC_FIFO_EMPTY) {
-				/* FIFO empty. */
-				break;
-			} else if (status_fifo & PCI230_ADC_FIFO_HALF) {
-				/* FIFO half full. */
-				fifoamount = PCI230_ADC_FIFOLEVEL_HALFFULL;
-			} else if (devpriv->hwver > 0) {
-				/* Read PCI230+/260+ ADC FIFO level. */
-				fifoamount = inw(devpriv->daqio +
-						 PCI230P_ADCFFLEV);
-				if (fifoamount == 0)
-					break;	/* Shouldn't happen. */
-			} else {
-				/* FIFO not empty. */
-				fifoamount = 1;
-			}
-		}
-
-		val = pci230_ai_read(dev);
-		if (!comedi_buf_write_samples(s, &val, 1))
-			break;
-
-		fifoamount--;
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg) {
-			async->events |= COMEDI_CB_EOA;
-			break;
-		}
-	}
-
-	/* update FIFO interrupt trigger level if still running */
-	if (!(async->events & COMEDI_CB_CANCEL_MASK))
-		pci230_ai_update_fifo_trigger_level(dev, s);
-}
-
-static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pci230_private *devpriv = dev->private;
-	unsigned int i, chan, range, diff;
-	unsigned int res_mask;
-	unsigned short adccon, adcen;
-	unsigned char zgat;
-
-	/* Get the command. */
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-
-	/*
-	 * Determine which shared resources are needed.
-	 */
-	res_mask = 0;
-	/*
-	 * Need Z2-CT2 to supply a conversion trigger source at a high
-	 * logic level, even if not doing timed conversions.
-	 */
-	res_mask |= RES_Z2CT2;
-	if (cmd->scan_begin_src != TRIG_FOLLOW) {
-		/* Using Z2-CT0 monostable to gate Z2-CT2 conversion timer */
-		res_mask |= RES_Z2CT0;
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			/* Using Z2-CT1 for scan frequency */
-			res_mask |= RES_Z2CT1;
-		}
-	}
-	/* Claim resources. */
-	if (!pci230_claim_shared(dev, res_mask, OWNER_AICMD))
-		return -EBUSY;
-
-	/*
-	 * Steps:
-	 * - Set channel scan list.
-	 * - Set channel gains.
-	 * - Enable and reset FIFO, specify uni/bip, se/diff, and set
-	 *   start conversion source to point to something at a high logic
-	 *   level (we use the output of counter/timer 2 for this purpose.
-	 * - PAUSE to allow things to settle down.
-	 * - Reset the FIFO again because it needs resetting twice and there
-	 *   may have been a false conversion trigger on some versions of
-	 *   PCI230/260 due to the start conversion source being set to a
-	 *   high logic level.
-	 * - Enable ADC FIFO level interrupt.
-	 * - Set actual conversion trigger source and FIFO interrupt trigger
-	 *   level.
-	 * - If convert_src is TRIG_TIMER, set up the timers.
-	 */
-
-	adccon = PCI230_ADC_FIFO_EN;
-	adcen = 0;
-
-	if (CR_AREF(cmd->chanlist[0]) == AREF_DIFF) {
-		/* Differential - all channels must be differential. */
-		diff = 1;
-		adccon |= PCI230_ADC_IM_DIF;
-	} else {
-		/* Single ended - all channels must be single-ended. */
-		diff = 0;
-		adccon |= PCI230_ADC_IM_SE;
-	}
-
-	range = CR_RANGE(cmd->chanlist[0]);
-	devpriv->ai_bipolar = comedi_range_is_bipolar(s, range);
-	if (devpriv->ai_bipolar)
-		adccon |= PCI230_ADC_IR_BIP;
-	else
-		adccon |= PCI230_ADC_IR_UNI;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int gainshift;
-
-		chan = CR_CHAN(cmd->chanlist[i]);
-		range = CR_RANGE(cmd->chanlist[i]);
-		if (diff) {
-			gainshift = 2 * chan;
-			if (devpriv->hwver == 0) {
-				/*
-				 * Original PCI230/260 expects both inputs of
-				 * the differential channel to be enabled.
-				 */
-				adcen |= 3 << gainshift;
-			} else {
-				/*
-				 * PCI230+/260+ expects only one input of the
-				 * differential channel to be enabled.
-				 */
-				adcen |= 1 << gainshift;
-			}
-		} else {
-			gainshift = chan & ~1;
-			adcen |= 1 << chan;
-		}
-		devpriv->adcg = (devpriv->adcg & ~(3 << gainshift)) |
-				(pci230_ai_gain[range] << gainshift);
-	}
-
-	/* Set channel scan list. */
-	outw(adcen, devpriv->daqio + PCI230_ADCEN);
-
-	/* Set channel gains. */
-	outw(devpriv->adcg, devpriv->daqio + PCI230_ADCG);
-
-	/*
-	 * Set counter/timer 2 output high for use as the initial start
-	 * conversion source.
-	 */
-	comedi_8254_set_mode(dev->pacer, 2, I8254_MODE1);
-
-	/*
-	 * Temporarily use CT2 output as conversion trigger source and
-	 * temporarily set FIFO interrupt trigger level to 'full'.
-	 */
-	adccon |= PCI230_ADC_INT_FIFO_FULL | PCI230_ADC_TRIG_Z2CT2;
-
-	/*
-	 * Enable and reset FIFO, specify FIFO trigger level full, specify
-	 * uni/bip, se/diff, and temporarily set the start conversion source
-	 * to CT2 output.  Note that CT2 output is currently high, and this
-	 * will produce a false conversion trigger on some versions of the
-	 * PCI230/260, but that will be dealt with later.
-	 */
-	devpriv->adccon = adccon;
-	outw(adccon | PCI230_ADC_FIFO_RESET, devpriv->daqio + PCI230_ADCCON);
-
-	/*
-	 * Delay -
-	 * Failure to include this will result in the first few channels'-worth
-	 * of data being corrupt, normally manifesting itself by large negative
-	 * voltages. It seems the board needs time to settle between the first
-	 * FIFO reset (above) and the second FIFO reset (below). Setting the
-	 * channel gains and scan list _before_ the first FIFO reset also
-	 * helps, though only slightly.
-	 */
-	usleep_range(25, 100);
-
-	/* Reset FIFO again. */
-	outw(adccon | PCI230_ADC_FIFO_RESET, devpriv->daqio + PCI230_ADCCON);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		/*
-		 * Set up CT2 as conversion timer, but gate it off for now.
-		 * Note, counter/timer output 2 can be monitored on the
-		 * connector: PCI230 pin 21, PCI260 pin 18.
-		 */
-		zgat = GAT_CONFIG(2, GAT_GND);
-		outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-		/* Set counter/timer 2 to the specified conversion period. */
-		pci230_ct_setup_ns_mode(dev, 2, I8254_MODE3, cmd->convert_arg,
-					cmd->flags);
-		if (cmd->scan_begin_src != TRIG_FOLLOW) {
-			/*
-			 * Set up monostable on CT0 output for scan timing.  A
-			 * rising edge on the trigger (gate) input of CT0 will
-			 * trigger the monostable, causing its output to go low
-			 * for the configured period.  The period depends on
-			 * the conversion period and the number of conversions
-			 * in the scan.
-			 *
-			 * Set the trigger high before setting up the
-			 * monostable to stop it triggering.  The trigger
-			 * source will be changed later.
-			 */
-			zgat = GAT_CONFIG(0, GAT_VCC);
-			outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-			pci230_ct_setup_ns_mode(dev, 0, I8254_MODE1,
-						((uint64_t)cmd->convert_arg *
-						 cmd->scan_end_arg),
-						CMDF_ROUND_UP);
-			if (cmd->scan_begin_src == TRIG_TIMER) {
-				/*
-				 * Monostable on CT0 will be triggered by
-				 * output of CT1 at configured scan frequency.
-				 *
-				 * Set up CT1 but gate it off for now.
-				 */
-				zgat = GAT_CONFIG(1, GAT_GND);
-				outb(zgat, dev->iobase + PCI230_ZGAT_SCE);
-				pci230_ct_setup_ns_mode(dev, 1, I8254_MODE3,
-							cmd->scan_begin_arg,
-							cmd->flags);
-			}
-		}
-	}
-
-	if (cmd->start_src == TRIG_INT)
-		s->async->inttrig = pci230_ai_inttrig_start;
-	else	/* TRIG_NOW */
-		pci230_ai_start(dev, s);
-
-	return 0;
-}
-
-static int pci230_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	pci230_ai_stop(dev, s);
-	return 0;
-}
-
-/* Interrupt handler */
-static irqreturn_t pci230_interrupt(int irq, void *d)
-{
-	unsigned char status_int, valid_status_int, temp_ier;
-	struct comedi_device *dev = (struct comedi_device *)d;
-	struct pci230_private *devpriv = dev->private;
-	struct comedi_subdevice *s_ao = dev->write_subdev;
-	struct comedi_subdevice *s_ai = dev->read_subdev;
-	unsigned long irqflags;
-
-	/* Read interrupt status/enable register. */
-	status_int = inb(dev->iobase + PCI230_INT_STAT);
-
-	if (status_int == PCI230_INT_DISABLE)
-		return IRQ_NONE;
-
-	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-	valid_status_int = devpriv->ier & status_int;
-	/*
-	 * Disable triggered interrupts.
-	 * (Only those interrupts that need re-enabling, are, later in the
-	 * handler).
-	 */
-	temp_ier = devpriv->ier & ~status_int;
-	outb(temp_ier, dev->iobase + PCI230_INT_SCE);
-	devpriv->intr_running = true;
-	devpriv->intr_cpuid = THISCPU;
-	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-
-	/*
-	 * Check the source of interrupt and handle it.
-	 * The PCI230 can cope with concurrent ADC, DAC, PPI C0 and C3
-	 * interrupts.  However, at present (Comedi-0.7.60) does not allow
-	 * concurrent execution of commands, instructions or a mixture of the
-	 * two.
-	 */
-
-	if (valid_status_int & PCI230_INT_ZCLK_CT1)
-		pci230_handle_ao_nofifo(dev, s_ao);
-
-	if (valid_status_int & PCI230P2_INT_DAC)
-		pci230_handle_ao_fifo(dev, s_ao);
-
-	if (valid_status_int & PCI230_INT_ADC)
-		pci230_handle_ai(dev, s_ai);
-
-	/* Reenable interrupts. */
-	spin_lock_irqsave(&devpriv->isr_spinlock, irqflags);
-	if (devpriv->ier != temp_ier)
-		outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
-	devpriv->intr_running = false;
-	spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
-
-	comedi_handle_events(dev, s_ao);
-	comedi_handle_events(dev, s_ai);
-
-	return IRQ_HANDLED;
-}
-
-/* Check if PCI device matches a specific board. */
-static bool pci230_match_pci_board(const struct pci230_board *board,
-				   struct pci_dev *pci_dev)
-{
-	/* assume pci_dev->device != PCI_DEVICE_ID_INVALID */
-	if (board->id != pci_dev->device)
-		return false;
-	if (board->min_hwver == 0)
-		return true;
-	/* Looking for a '+' model.  First check length of registers. */
-	if (pci_resource_len(pci_dev, 3) < 32)
-		return false;	/* Not a '+' model. */
-	/*
-	 * TODO: temporarily enable PCI device and read the hardware version
-	 * register.  For now, assume it's okay.
-	 */
-	return true;
-}
-
-/* Look for board matching PCI device. */
-static const struct pci230_board *pci230_find_pci_board(struct pci_dev *pci_dev)
-{
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(pci230_boards); i++)
-		if (pci230_match_pci_board(&pci230_boards[i], pci_dev))
-			return &pci230_boards[i];
-	return NULL;
-}
-
-static int pci230_auto_attach(struct comedi_device *dev,
-			      unsigned long context_unused)
-{
-	struct pci_dev *pci_dev = comedi_to_pci_dev(dev);
-	const struct pci230_board *board;
-	struct pci230_private *devpriv;
-	struct comedi_subdevice *s;
-	int rc;
-
-	dev_info(dev->class_dev, "amplc_pci230: attach pci %s\n",
-		 pci_name(pci_dev));
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	spin_lock_init(&devpriv->isr_spinlock);
-	spin_lock_init(&devpriv->res_spinlock);
-	spin_lock_init(&devpriv->ai_stop_spinlock);
-	spin_lock_init(&devpriv->ao_stop_spinlock);
-
-	board = pci230_find_pci_board(pci_dev);
-	if (!board) {
-		dev_err(dev->class_dev,
-			"amplc_pci230: BUG! cannot determine board type!\n");
-		return -EINVAL;
-	}
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	rc = comedi_pci_enable(dev);
-	if (rc)
-		return rc;
-
-	/*
-	 * Read base addresses of the PCI230's two I/O regions from PCI
-	 * configuration register.
-	 */
-	dev->iobase = pci_resource_start(pci_dev, 2);
-	devpriv->daqio = pci_resource_start(pci_dev, 3);
-	dev_dbg(dev->class_dev,
-		"%s I/O region 1 0x%04lx I/O region 2 0x%04lx\n",
-		dev->board_name, dev->iobase, devpriv->daqio);
-	/* Read bits of DACCON register - only the output range. */
-	devpriv->daccon = inw(devpriv->daqio + PCI230_DACCON) &
-			  PCI230_DAC_OR_MASK;
-	/*
-	 * Read hardware version register and set extended function register
-	 * if they exist.
-	 */
-	if (pci_resource_len(pci_dev, 3) >= 32) {
-		unsigned short extfunc = 0;
-
-		devpriv->hwver = inw(devpriv->daqio + PCI230P_HWVER);
-		if (devpriv->hwver < board->min_hwver) {
-			dev_err(dev->class_dev,
-				"%s - bad hardware version - got %u, need %u\n",
-				dev->board_name, devpriv->hwver,
-				board->min_hwver);
-			return -EIO;
-		}
-		if (devpriv->hwver > 0) {
-			if (!board->have_dio) {
-				/*
-				 * No DIO ports.  Route counters' external gates
-				 * to the EXTTRIG signal (PCI260+ pin 17).
-				 * (Otherwise, they would be routed to DIO
-				 * inputs PC0, PC1 and PC2 which don't exist
-				 * on PCI260[+].)
-				 */
-				extfunc |= PCI230P_EXTFUNC_GAT_EXTTRIG;
-			}
-			if (board->ao_bits && devpriv->hwver >= 2) {
-				/* Enable DAC FIFO functionality. */
-				extfunc |= PCI230P2_EXTFUNC_DACFIFO;
-			}
-		}
-		outw(extfunc, devpriv->daqio + PCI230P_EXTFUNC);
-		if (extfunc & PCI230P2_EXTFUNC_DACFIFO) {
-			/*
-			 * Temporarily enable DAC FIFO, reset it and disable
-			 * FIFO wraparound.
-			 */
-			outw(devpriv->daccon | PCI230P2_DAC_FIFO_EN |
-			     PCI230P2_DAC_FIFO_RESET,
-			     devpriv->daqio + PCI230_DACCON);
-			/* Clear DAC FIFO channel enable register. */
-			outw(0, devpriv->daqio + PCI230P2_DACEN);
-			/* Disable DAC FIFO. */
-			outw(devpriv->daccon, devpriv->daqio + PCI230_DACCON);
-		}
-	}
-	/* Disable board's interrupts. */
-	outb(0, dev->iobase + PCI230_INT_SCE);
-	/* Set ADC to a reasonable state. */
-	devpriv->adcg = 0;
-	devpriv->adccon = PCI230_ADC_TRIG_NONE | PCI230_ADC_IM_SE |
-			  PCI230_ADC_IR_BIP;
-	outw(1 << 0, devpriv->daqio + PCI230_ADCEN);
-	outw(devpriv->adcg, devpriv->daqio + PCI230_ADCG);
-	outw(devpriv->adccon | PCI230_ADC_FIFO_RESET,
-	     devpriv->daqio + PCI230_ADCCON);
-
-	if (pci_dev->irq) {
-		rc = request_irq(pci_dev->irq, pci230_interrupt, IRQF_SHARED,
-				 dev->board_name, dev);
-		if (rc == 0)
-			dev->irq = pci_dev->irq;
-	}
-
-	dev->pacer = comedi_8254_init(dev->iobase + PCI230_Z2_CT_BASE,
-				      0, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	rc = comedi_alloc_subdevices(dev, 3);
-	if (rc)
-		return rc;
-
-	s = &dev->subdevices[0];
-	/* analog input subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND;
-	s->n_chan = 16;
-	s->maxdata = (1 << board->ai_bits) - 1;
-	s->range_table = &pci230_ai_range;
-	s->insn_read = pci230_ai_insn_read;
-	s->len_chanlist = 256;	/* but there are restrictions. */
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->do_cmd = pci230_ai_cmd;
-		s->do_cmdtest = pci230_ai_cmdtest;
-		s->cancel = pci230_ai_cancel;
-	}
-
-	s = &dev->subdevices[1];
-	/* analog output subdevice */
-	if (board->ao_bits) {
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
-		s->n_chan = 2;
-		s->maxdata = (1 << board->ao_bits) - 1;
-		s->range_table = &pci230_ao_range;
-		s->insn_write = pci230_ao_insn_write;
-		s->len_chanlist = 2;
-		if (dev->irq) {
-			dev->write_subdev = s;
-			s->subdev_flags |= SDF_CMD_WRITE;
-			s->do_cmd = pci230_ao_cmd;
-			s->do_cmdtest = pci230_ao_cmdtest;
-			s->cancel = pci230_ao_cancel;
-		}
-
-		rc = comedi_alloc_subdev_readback(s);
-		if (rc)
-			return rc;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[2];
-	/* digital i/o subdevice */
-	if (board->have_dio) {
-		rc = subdev_8255_init(dev, s, NULL, PCI230_PPI_X_BASE);
-		if (rc)
-			return rc;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver amplc_pci230_driver = {
-	.driver_name	= "amplc_pci230",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci230_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int amplc_pci230_pci_probe(struct pci_dev *dev,
-				  const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &amplc_pci230_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id amplc_pci230_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_PCI230) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_PCI260) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, amplc_pci230_pci_table);
-
-static struct pci_driver amplc_pci230_pci_driver = {
-	.name		= "amplc_pci230",
-	.id_table	= amplc_pci230_pci_table,
-	.probe		= amplc_pci230_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(amplc_pci230_driver, amplc_pci230_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon PCI230(+) and PCI260(+)");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pci236.c b/drivers/staging/comedi/drivers/amplc_pci236.c
deleted file mode 100644
index 31cc38b4bcad..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pci236.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * comedi/drivers/amplc_pci236.c
- * Driver for Amplicon PCI236 DIO boards.
- *
- * Copyright (C) 2002-2014 MEV Ltd. <http://www.mev.co.uk/>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-/*
- * Driver: amplc_pci236
- * Description: Amplicon PCI236
- * Author: Ian Abbott <abbotti@mev.co.uk>
- * Devices: [Amplicon] PCI236 (amplc_pci236)
- * Updated: Fri, 25 Jul 2014 15:32:40 +0000
- * Status: works
- *
- * Configuration options:
- *   none
- *
- * Manual configuration of PCI board (PCI236) is not supported; it is
- * configured automatically.
- *
- * The PCI236 board has a single 8255 appearing as subdevice 0.
- *
- * Subdevice 1 pretends to be a digital input device, but it always
- * returns 0 when read. However, if you run a command with
- * scan_begin_src=TRIG_EXT, a rising edge on port C bit 3 acts as an
- * external trigger, which can be used to wake up tasks.  This is like
- * the comedi_parport device.  If no interrupt is connected, then
- * subdevice 1 is unused.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "amplc_pc236.h"
-#include "plx9052.h"
-
-/* Disable, and clear, interrupts */
-#define PCI236_INTR_DISABLE	(PLX9052_INTCSR_LI1POL |	\
-				 PLX9052_INTCSR_LI2POL |	\
-				 PLX9052_INTCSR_LI1SEL |	\
-				 PLX9052_INTCSR_LI1CLRINT)
-
-/* Enable, and clear, interrupts */
-#define PCI236_INTR_ENABLE	(PLX9052_INTCSR_LI1ENAB |	\
-				 PLX9052_INTCSR_LI1POL |	\
-				 PLX9052_INTCSR_LI2POL |	\
-				 PLX9052_INTCSR_PCIENAB |	\
-				 PLX9052_INTCSR_LI1SEL |	\
-				 PLX9052_INTCSR_LI1CLRINT)
-
-static void pci236_intr_update_cb(struct comedi_device *dev, bool enable)
-{
-	struct pc236_private *devpriv = dev->private;
-
-	/* this will also clear the "local interrupt 1" latch */
-	outl(enable ? PCI236_INTR_ENABLE : PCI236_INTR_DISABLE,
-	     devpriv->lcr_iobase + PLX9052_INTCSR);
-}
-
-static bool pci236_intr_chk_clr_cb(struct comedi_device *dev)
-{
-	struct pc236_private *devpriv = dev->private;
-
-	/* check if interrupt occurred */
-	if (!(inl(devpriv->lcr_iobase + PLX9052_INTCSR) &
-	      PLX9052_INTCSR_LI1STAT))
-		return false;
-	/* clear the interrupt */
-	pci236_intr_update_cb(dev, devpriv->enable_irq);
-	return true;
-}
-
-static const struct pc236_board pc236_pci_board = {
-	.name = "pci236",
-	.intr_update_cb = pci236_intr_update_cb,
-	.intr_chk_clr_cb = pci236_intr_chk_clr_cb,
-};
-
-static int pci236_auto_attach(struct comedi_device *dev,
-			      unsigned long context_unused)
-{
-	struct pci_dev *pci_dev = comedi_to_pci_dev(dev);
-	struct pc236_private *devpriv;
-	unsigned long iobase;
-	int ret;
-
-	dev_info(dev->class_dev, "amplc_pci236: attach pci %s\n",
-		 pci_name(pci_dev));
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	dev->board_ptr = &pc236_pci_board;
-	dev->board_name = pc236_pci_board.name;
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv->lcr_iobase = pci_resource_start(pci_dev, 1);
-	iobase = pci_resource_start(pci_dev, 2);
-	return amplc_pc236_common_attach(dev, iobase, pci_dev->irq,
-					 IRQF_SHARED);
-}
-
-static struct comedi_driver amplc_pci236_driver = {
-	.driver_name = "amplc_pci236",
-	.module = THIS_MODULE,
-	.auto_attach = pci236_auto_attach,
-	.detach = comedi_pci_detach,
-};
-
-static const struct pci_device_id pci236_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, 0x0009) },
-	{ 0 }
-};
-
-MODULE_DEVICE_TABLE(pci, pci236_pci_table);
-
-static int amplc_pci236_pci_probe(struct pci_dev *dev,
-				  const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &amplc_pci236_driver,
-				      id->driver_data);
-}
-
-static struct pci_driver amplc_pci236_pci_driver = {
-	.name		= "amplc_pci236",
-	.id_table	= pci236_pci_table,
-	.probe		= &amplc_pci236_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-
-module_comedi_pci_driver(amplc_pci236_driver, amplc_pci236_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon PCI236 DIO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c
deleted file mode 100644
index b6768aa90547..000000000000
--- a/drivers/staging/comedi/drivers/amplc_pci263.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
-    comedi/drivers/amplc_pci263.c
-    Driver for Amplicon PCI263 relay board.
-
-    Copyright (C) 2002 MEV Ltd. <http://www.mev.co.uk/>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: amplc_pci263
-Description: Amplicon PCI263
-Author: Ian Abbott <abbotti@mev.co.uk>
-Devices: [Amplicon] PCI263 (amplc_pci263)
-Updated: Fri, 12 Apr 2013 15:19:36 +0100
-Status: works
-
-Configuration options: not applicable, uses PCI auto config
-
-The board appears as one subdevice, with 16 digital outputs, each
-connected to a reed-relay. Relay contacts are closed when output is 1.
-The state of the outputs can be read.
-*/
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-static int pci263_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		outb(s->state & 0xff, dev->iobase);
-		outb((s->state >> 8) & 0xff, dev->iobase + 1);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pci263_auto_attach(struct comedi_device *dev,
-			      unsigned long context_unused)
-{
-	struct pci_dev *pci_dev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->iobase = pci_resource_start(pci_dev, 2);
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* digital output subdevice */
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = pci263_do_insn_bits;
-	/* read initial relay state */
-	s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8);
-
-	return 0;
-}
-
-static struct comedi_driver amplc_pci263_driver = {
-	.driver_name	= "amplc_pci263",
-	.module		= THIS_MODULE,
-	.auto_attach	= pci263_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static const struct pci_device_id pci263_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, 0x000c) },
-	{0}
-};
-MODULE_DEVICE_TABLE(pci, pci263_pci_table);
-
-static int amplc_pci263_pci_probe(struct pci_dev *dev,
-				  const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &amplc_pci263_driver,
-				      id->driver_data);
-}
-
-static struct pci_driver amplc_pci263_pci_driver = {
-	.name		= "amplc_pci263",
-	.id_table	= pci263_pci_table,
-	.probe		= &amplc_pci263_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(amplc_pci263_driver, amplc_pci263_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Amplicon PCI263 relay board");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/c6xdigio.c b/drivers/staging/comedi/drivers/c6xdigio.c
deleted file mode 100644
index 1a109e30d8ff..000000000000
--- a/drivers/staging/comedi/drivers/c6xdigio.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
- * c6xdigio.c
- * Hardware driver for Mechatronic Systems Inc. C6x_DIGIO DSP daughter card.
- * http://web.archive.org/web/%2A/http://robot0.ge.uiuc.edu/~spong/mecha/
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1999 Dan Block
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: c6xdigio
- * Description: Mechatronic Systems Inc. C6x_DIGIO DSP daughter card
- * Author: Dan Block
- * Status: unknown
- * Devices: [Mechatronic Systems Inc.] C6x_DIGIO DSP daughter card (c6xdigio)
- * Updated: Sun Nov 20 20:18:34 EST 2005
- *
- * Configuration Options:
- *	[0] - base address
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/timer.h>
-#include <linux/io.h>
-#include <linux/pnp.h>
-
-#include "../comedidev.h"
-
-/*
- * Register I/O map
- */
-#define C6XDIGIO_DATA_REG	0x00
-#define C6XDIGIO_DATA_CHAN(x)	(((x) + 1) << 4)
-#define C6XDIGIO_DATA_PWM	(1 << 5)
-#define C6XDIGIO_DATA_ENCODER	(1 << 6)
-#define C6XDIGIO_STATUS_REG	0x01
-#define C6XDIGIO_CTRL_REG	0x02
-
-#define C6XDIGIO_TIME_OUT 20
-
-static int c6xdigio_chk_status(struct comedi_device *dev, unsigned long context)
-{
-	unsigned int status;
-	int timeout = 0;
-
-	do {
-		status = inb(dev->iobase + C6XDIGIO_STATUS_REG);
-		if ((status & 0x80) != context)
-			return 0;
-		timeout++;
-	} while  (timeout < C6XDIGIO_TIME_OUT);
-
-	return -EBUSY;
-}
-
-static int c6xdigio_write_data(struct comedi_device *dev,
-			       unsigned int val, unsigned int status)
-{
-	outb_p(val, dev->iobase + C6XDIGIO_DATA_REG);
-	return c6xdigio_chk_status(dev, status);
-}
-
-static int c6xdigio_get_encoder_bits(struct comedi_device *dev,
-				     unsigned int *bits,
-				     unsigned int cmd,
-				     unsigned int status)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + C6XDIGIO_STATUS_REG);
-	val >>= 3;
-	val &= 0x07;
-
-	*bits = val;
-
-	return c6xdigio_write_data(dev, cmd, status);
-}
-
-static void c6xdigio_pwm_write(struct comedi_device *dev,
-			       unsigned int chan, unsigned int val)
-{
-	unsigned int cmd = C6XDIGIO_DATA_PWM | C6XDIGIO_DATA_CHAN(chan);
-	unsigned int bits;
-
-	if (val > 498)
-		val = 498;
-	if (val < 2)
-		val = 2;
-
-	bits = (val >> 0) & 0x03;
-	c6xdigio_write_data(dev, cmd | bits | (0 << 2), 0x00);
-	bits = (val >> 2) & 0x03;
-	c6xdigio_write_data(dev, cmd | bits | (1 << 2), 0x80);
-	bits = (val >> 4) & 0x03;
-	c6xdigio_write_data(dev, cmd | bits | (0 << 2), 0x00);
-	bits = (val >> 6) & 0x03;
-	c6xdigio_write_data(dev, cmd | bits | (1 << 2), 0x80);
-	bits = (val >> 8) & 0x03;
-	c6xdigio_write_data(dev, cmd | bits | (0 << 2), 0x00);
-
-	c6xdigio_write_data(dev, 0x00, 0x80);
-}
-
-static int c6xdigio_encoder_read(struct comedi_device *dev,
-				 unsigned int chan)
-{
-	unsigned int cmd = C6XDIGIO_DATA_ENCODER | C6XDIGIO_DATA_CHAN(chan);
-	unsigned int val = 0;
-	unsigned int bits;
-
-	c6xdigio_write_data(dev, cmd, 0x00);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (1 << 2), 0x80);
-	val |= (bits << 0);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (0 << 2), 0x00);
-	val |= (bits << 3);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (1 << 2), 0x80);
-	val |= (bits << 6);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (0 << 2), 0x00);
-	val |= (bits << 9);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (1 << 2), 0x80);
-	val |= (bits << 12);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (0 << 2), 0x00);
-	val |= (bits << 15);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (1 << 2), 0x80);
-	val |= (bits << 18);
-
-	c6xdigio_get_encoder_bits(dev, &bits, cmd | (0 << 2), 0x00);
-	val |= (bits << 21);
-
-	c6xdigio_write_data(dev, 0x00, 0x80);
-
-	return val;
-}
-
-static int c6xdigio_pwm_insn_write(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = (s->state >> (16 * chan)) & 0xffff;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		c6xdigio_pwm_write(dev, chan, val);
-	}
-
-	/*
-	 * There are only 2 PWM channels and they have a maxdata of 500.
-	 * Instead of allocating private data to save the values in for
-	 * readback this driver just packs the values for the two channels
-	 * in the s->state.
-	 */
-	s->state &= (0xffff << (16 * chan));
-	s->state |= (val << (16 * chan));
-
-	return insn->n;
-}
-
-static int c6xdigio_pwm_insn_read(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	val = (s->state >> (16 * chan)) & 0xffff;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = val;
-
-	return insn->n;
-}
-
-static int c6xdigio_encoder_insn_read(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = c6xdigio_encoder_read(dev, chan);
-
-		/* munge two's complement value to offset binary */
-		data[i] = comedi_offset_munge(s, val);
-	}
-
-	return insn->n;
-}
-
-static void c6xdigio_init(struct comedi_device *dev)
-{
-	/* Initialize the PWM */
-	c6xdigio_write_data(dev, 0x70, 0x00);
-	c6xdigio_write_data(dev, 0x74, 0x80);
-	c6xdigio_write_data(dev, 0x70, 0x00);
-	c6xdigio_write_data(dev, 0x00, 0x80);
-
-	/* Reset the encoders */
-	c6xdigio_write_data(dev, 0x68, 0x00);
-	c6xdigio_write_data(dev, 0x6c, 0x80);
-	c6xdigio_write_data(dev, 0x68, 0x00);
-	c6xdigio_write_data(dev, 0x00, 0x80);
-}
-
-static const struct pnp_device_id c6xdigio_pnp_tbl[] = {
-	/* Standard LPT Printer Port */
-	{.id = "PNP0400", .driver_data = 0},
-	/* ECP Printer Port */
-	{.id = "PNP0401", .driver_data = 0},
-	{}
-};
-
-static struct pnp_driver c6xdigio_pnp_driver = {
-	.name = "c6xdigio",
-	.id_table = c6xdigio_pnp_tbl,
-};
-
-static int c6xdigio_attach(struct comedi_device *dev,
-			   struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x03);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	/*  Make sure that PnP ports get activated */
-	pnp_register_driver(&c6xdigio_pnp_driver);
-
-	s = &dev->subdevices[0];
-	/* pwm output subdevice */
-	s->type		= COMEDI_SUBD_PWM;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 500;
-	s->range_table	= &range_unknown;
-	s->insn_write	= c6xdigio_pwm_insn_write;
-	s->insn_read	= c6xdigio_pwm_insn_read;
-
-	s = &dev->subdevices[1];
-	/* encoder (counter) subdevice */
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE | SDF_LSAMPL;
-	s->n_chan	= 2;
-	s->maxdata	= 0xffffff;
-	s->range_table	= &range_unknown;
-	s->insn_read	= c6xdigio_encoder_insn_read;
-
-	/*  I will call this init anyway but more than likely the DSP board */
-	/*  will not be connected when device driver is loaded. */
-	c6xdigio_init(dev);
-
-	return 0;
-}
-
-static void c6xdigio_detach(struct comedi_device *dev)
-{
-	comedi_legacy_detach(dev);
-	pnp_unregister_driver(&c6xdigio_pnp_driver);
-}
-
-static struct comedi_driver c6xdigio_driver = {
-	.driver_name	= "c6xdigio",
-	.module		= THIS_MODULE,
-	.attach		= c6xdigio_attach,
-	.detach		= c6xdigio_detach,
-};
-module_comedi_driver(c6xdigio_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for the C6x_DIGIO DSP daughter card");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
deleted file mode 100644
index ae84f2c0cc9c..000000000000
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/*
-    comedi/drivers/das16cs.c
-    Driver for Computer Boards PC-CARD DAS16/16.
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000, 2001, 2002 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    PCMCIA support code for this driver is adapted from the dummy_cs.c
-    driver of the Linux PCMCIA Card Services package.
-
-    The initial developer of the original code is David A. Hinds
-    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
-    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
-
-*/
-/*
-Driver: cb_das16_cs
-Description: Computer Boards PC-CARD DAS16/16
-Devices: [ComputerBoards] PC-CARD DAS16/16 (cb_das16_cs), PC-CARD DAS16/16-AO
-Author: ds
-Updated: Mon, 04 Nov 2002 20:04:21 -0800
-Status: experimental
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-
-#include "../comedi_pcmcia.h"
-
-#include "comedi_8254.h"
-
-#define DAS16CS_ADC_DATA		0
-#define DAS16CS_DIO_MUX			2
-#define DAS16CS_MISC1			4
-#define DAS16CS_MISC2			6
-#define DAS16CS_TIMER_BASE		8
-#define DAS16CS_DIO			16
-
-struct das16cs_board {
-	const char *name;
-	int device_id;
-	int n_ao_chans;
-};
-
-static const struct das16cs_board das16cs_boards[] = {
-	{
-		.name		= "PC-CARD DAS16/16-AO",
-		.device_id	= 0x0039,
-		.n_ao_chans	= 2,
-	}, {
-		.name		= "PCM-DAS16s/16",
-		.device_id	= 0x4009,
-		.n_ao_chans	= 0,
-	}, {
-		.name		= "PC-CARD DAS16/16",
-		.device_id	= 0x0000,	/* unknown */
-		.n_ao_chans	= 0,
-	},
-};
-
-struct das16cs_private {
-	unsigned short status1;
-	unsigned short status2;
-};
-
-static const struct comedi_lrange das16cs_ai_range = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-	}
-};
-
-static int das16cs_ai_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + DAS16CS_MISC1);
-	if (status & 0x0080)
-		return 0;
-	return -EBUSY;
-}
-
-static int das16cs_ai_rinsn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	struct das16cs_private *devpriv = dev->private;
-	int chan = CR_CHAN(insn->chanspec);
-	int range = CR_RANGE(insn->chanspec);
-	int aref = CR_AREF(insn->chanspec);
-	int ret;
-	int i;
-
-	outw(chan, dev->iobase + DAS16CS_DIO_MUX);
-
-	devpriv->status1 &= ~0xf320;
-	devpriv->status1 |= (aref == AREF_DIFF) ? 0 : 0x0020;
-	outw(devpriv->status1, dev->iobase + DAS16CS_MISC1);
-
-	devpriv->status2 &= ~0xff00;
-	switch (range) {
-	case 0:
-		devpriv->status2 |= 0x800;
-		break;
-	case 1:
-		devpriv->status2 |= 0x000;
-		break;
-	case 2:
-		devpriv->status2 |= 0x100;
-		break;
-	case 3:
-		devpriv->status2 |= 0x200;
-		break;
-	}
-	outw(devpriv->status2, dev->iobase + DAS16CS_MISC2);
-
-	for (i = 0; i < insn->n; i++) {
-		outw(0, dev->iobase + DAS16CS_ADC_DATA);
-
-		ret = comedi_timeout(dev, s, insn, das16cs_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[i] = inw(dev->iobase + DAS16CS_ADC_DATA);
-	}
-
-	return i;
-}
-
-static int das16cs_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct das16cs_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	unsigned short status1;
-	int bit;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		outw(devpriv->status1, dev->iobase + DAS16CS_MISC1);
-		udelay(1);
-
-		status1 = devpriv->status1 & ~0xf;
-		if (chan)
-			status1 |= 0x0001;
-		else
-			status1 |= 0x0008;
-
-		outw(status1, dev->iobase + DAS16CS_MISC1);
-		udelay(1);
-
-		for (bit = 15; bit >= 0; bit--) {
-			int b = (val >> bit) & 0x1;
-
-			b <<= 1;
-			outw(status1 | b | 0x0000, dev->iobase + DAS16CS_MISC1);
-			udelay(1);
-			outw(status1 | b | 0x0004, dev->iobase + DAS16CS_MISC1);
-			udelay(1);
-		}
-		/*
-		 * Make both DAC0CS and DAC1CS high to load
-		 * the new data and update analog the output
-		 */
-		outw(status1 | 0x9, dev->iobase + DAS16CS_MISC1);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int das16cs_dio_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + DAS16CS_DIO);
-
-	data[1] = inw(dev->iobase + DAS16CS_DIO);
-
-	return insn->n;
-}
-
-static int das16cs_dio_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct das16cs_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 4)
-		mask = 0x0f;
-	else
-		mask = 0xf0;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	devpriv->status2 &= ~0x00c0;
-	devpriv->status2 |= (s->io_bits & 0xf0) ? 0x0080 : 0;
-	devpriv->status2 |= (s->io_bits & 0x0f) ? 0x0040 : 0;
-
-	outw(devpriv->status2, dev->iobase + DAS16CS_MISC2);
-
-	return insn->n;
-}
-
-static const void *das16cs_find_boardinfo(struct comedi_device *dev,
-					  struct pcmcia_device *link)
-{
-	const struct das16cs_board *board;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(das16cs_boards); i++) {
-		board = &das16cs_boards[i];
-		if (board->device_id == link->card_id)
-			return board;
-	}
-
-	return NULL;
-}
-
-static int das16cs_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	const struct das16cs_board *board;
-	struct das16cs_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	board = das16cs_find_boardinfo(dev, link);
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	link->config_flags |= CONF_AUTO_SET_IO | CONF_ENABLE_IRQ;
-	ret = comedi_pcmcia_enable(dev, NULL);
-	if (ret)
-		return ret;
-	dev->iobase = link->resource[0]->start;
-
-	link->priv = dev;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	dev->pacer = comedi_8254_init(dev->iobase + DAS16CS_TIMER_BASE,
-				      I8254_OSC_BASE_10MHZ, I8254_IO16, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog input subdevice */
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ;
-	s->n_chan	= 16;
-	s->maxdata	= 0xffff;
-	s->range_table	= &das16cs_ai_range;
-	s->len_chanlist	= 16;
-	s->insn_read	= das16cs_ai_rinsn;
-
-	s = &dev->subdevices[1];
-	/* analog output subdevice */
-	if (board->n_ao_chans) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= board->n_ao_chans;
-		s->maxdata	= 0xffff;
-		s->range_table	= &range_bipolar10;
-		s->insn_write	= &das16cs_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[2];
-	/* digital i/o subdevice */
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= das16cs_dio_insn_bits;
-	s->insn_config	= das16cs_dio_insn_config;
-
-	return 0;
-}
-
-static struct comedi_driver driver_das16cs = {
-	.driver_name	= "cb_das16_cs",
-	.module		= THIS_MODULE,
-	.auto_attach	= das16cs_auto_attach,
-	.detach		= comedi_pcmcia_disable,
-};
-
-static int das16cs_pcmcia_attach(struct pcmcia_device *link)
-{
-	return comedi_pcmcia_auto_config(link, &driver_das16cs);
-}
-
-static const struct pcmcia_device_id das16cs_id_table[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x0039),
-	PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4009),
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, das16cs_id_table);
-
-static struct pcmcia_driver das16cs_driver = {
-	.name		= "cb_das16_cs",
-	.owner		= THIS_MODULE,
-	.id_table	= das16cs_id_table,
-	.probe		= das16cs_pcmcia_attach,
-	.remove		= comedi_pcmcia_auto_unconfig,
-};
-module_comedi_pcmcia_driver(driver_das16cs, das16cs_driver);
-
-MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
-MODULE_DESCRIPTION("Comedi driver for Computer Boards PC-CARD DAS16/16");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
deleted file mode 100644
index b43e836575fd..000000000000
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ /dev/null
@@ -1,1582 +0,0 @@
-/*
-    comedi/drivers/cb_pcidas.c
-
-    Developed by Ivan Martinez and Frank Mori Hess, with valuable help from
-    David Schleef and the rest of the Comedi developers comunity.
-
-    Copyright (C) 2001-2003 Ivan Martinez <imr@oersted.dtu.dk>
-    Copyright (C) 2001,2002 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: cb_pcidas
-Description: MeasurementComputing PCI-DAS series
-  with the AMCC S5933 PCI controller
-Author: Ivan Martinez <imr@oersted.dtu.dk>,
-  Frank Mori Hess <fmhess@users.sourceforge.net>
-Updated: 2003-3-11
-Devices: [Measurement Computing] PCI-DAS1602/16 (cb_pcidas),
-  PCI-DAS1602/16jr, PCI-DAS1602/12, PCI-DAS1200, PCI-DAS1200jr,
-  PCI-DAS1000, PCI-DAS1001, PCI_DAS1002
-
-Status:
-  There are many reports of the driver being used with most of the
-  supported cards. Despite no detailed log is maintained, it can
-  be said that the driver is quite tested and stable.
-
-  The boards may be autocalibrated using the comedi_calibrate
-  utility.
-
-Configuration options: not applicable, uses PCI auto config
-
-For commands, the scanned channels must be consecutive
-(i.e. 4-5-6-7, 2-3-4,...), and must all have the same
-range and aref.
-
-AI Triggering:
-   For start_src == TRIG_EXT, the A/D EXTERNAL TRIGGER IN (pin 45) is used.
-   For 1602 series, the start_arg is interpreted as follows:
-     start_arg == 0                   => gated trigger (level high)
-     start_arg == CR_INVERT           => gated trigger (level low)
-     start_arg == CR_EDGE             => Rising edge
-     start_arg == CR_EDGE | CR_INVERT => Falling edge
-   For the other boards the trigger will be done on rising edge
-*/
-/*
-
-TODO:
-
-analog triggering on 1602 series
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "comedi_8254.h"
-#include "8255.h"
-#include "amcc_s5933.h"
-
-#define AI_BUFFER_SIZE		1024	/* max ai fifo size */
-#define AO_BUFFER_SIZE		1024	/* max ao fifo size */
-#define NUM_CHANNELS_8800	8
-#define NUM_CHANNELS_7376	1
-#define NUM_CHANNELS_8402	2
-#define NUM_CHANNELS_DAC08	1
-
-/* Control/Status registers */
-#define INT_ADCFIFO		0	/* INTERRUPT / ADC FIFO register */
-#define   INT_EOS		0x1	/* int end of scan */
-#define   INT_FHF		0x2	/* int fifo half full */
-#define   INT_FNE		0x3	/* int fifo not empty */
-#define   INT_MASK		0x3	/* mask of int select bits */
-#define   INTE			0x4	/* int enable */
-#define   DAHFIE		0x8	/* dac half full int enable */
-#define   EOAIE			0x10	/* end of acq. int enable */
-#define   DAHFI			0x20	/* dac half full status / clear */
-#define   EOAI			0x40	/* end of acq. int status / clear */
-#define   INT			0x80	/* int status / clear */
-#define   EOBI			0x200	/* end of burst int status */
-#define   ADHFI			0x400	/* half-full int status */
-#define   ADNEI			0x800	/* fifo not empty int status (latch) */
-#define   ADNE			0x1000	/* fifo not empty status (realtime) */
-#define   DAEMIE		0x1000	/* dac empty int enable */
-#define   LADFUL		0x2000	/* fifo overflow / clear */
-#define   DAEMI			0x4000	/* dac fifo empty int status / clear */
-
-#define ADCMUX_CONT		2	/* ADC CHANNEL MUX AND CONTROL reg */
-#define   BEGIN_SCAN(x)		((x) & 0xf)
-#define   END_SCAN(x)		(((x) & 0xf) << 4)
-#define   GAIN_BITS(x)		(((x) & 0x3) << 8)
-#define   UNIP			0x800	/* Analog front-end unipolar mode */
-#define   SE			0x400	/* Inputs in single-ended mode */
-#define   PACER_MASK		0x3000	/* pacer source bits */
-#define   PACER_INT		0x1000	/* int. pacer */
-#define   PACER_EXT_FALL	0x2000	/* ext. falling edge */
-#define   PACER_EXT_RISE	0x3000	/* ext. rising edge */
-#define   EOC			0x4000	/* adc not busy */
-
-#define TRIG_CONTSTAT		 4	/* TRIGGER CONTROL/STATUS register */
-#define   SW_TRIGGER		0x1	/* software start trigger */
-#define   EXT_TRIGGER		0x2	/* ext. start trigger */
-#define   ANALOG_TRIGGER	0x3	/* ext. analog trigger */
-#define   TRIGGER_MASK		0x3	/* start trigger mask */
-#define   TGPOL			0x04	/* invert trigger (1602 only) */
-#define   TGSEL			0x08	/* edge/level trigerred (1602 only) */
-#define   TGEN			0x10	/* enable external start trigger */
-#define   BURSTE		0x20	/* burst mode enable */
-#define   XTRCL			0x80	/* clear external trigger */
-
-#define CALIBRATION_REG		6	/* CALIBRATION register */
-#define   SELECT_8800_BIT	0x100	/* select 8800 caldac */
-#define   SELECT_TRIMPOT_BIT	0x200	/* select ad7376 trim pot */
-#define   SELECT_DAC08_BIT	0x400	/* select dac08 caldac */
-#define   CAL_SRC_BITS(x)	(((x) & 0x7) << 11)
-#define   CAL_EN_BIT		0x4000	/* calibration source enable */
-#define   SERIAL_DATA_IN_BIT	0x8000	/* serial data bit going to caldac */
-
-#define DAC_CSR			0x8	/* dac control and status register */
-#define   DACEN			0x02	/* dac enable */
-#define   DAC_MODE_UPDATE_BOTH	0x80	/* update both dacs */
-
-static inline unsigned int DAC_RANGE(unsigned int channel, unsigned int range)
-{
-	return (range & 0x3) << (8 + 2 * (channel & 0x1));
-}
-
-static inline unsigned int DAC_RANGE_MASK(unsigned int channel)
-{
-	return 0x3 << (8 + 2 * (channel & 0x1));
-};
-
-/* bits for 1602 series only */
-#define   DAC_EMPTY		0x1	/* fifo empty, read, write clear */
-#define   DAC_START		0x4	/* start/arm fifo operations */
-#define   DAC_PACER_MASK	0x18	/* bits that set pacer source */
-#define   DAC_PACER_INT		0x8	/* int. pacing */
-#define   DAC_PACER_EXT_FALL	0x10	/* ext. pacing, falling edge */
-#define   DAC_PACER_EXT_RISE	0x18	/* ext. pacing, rising edge */
-
-static inline unsigned int DAC_CHAN_EN(unsigned int channel)
-{
-	return 1 << (5 + (channel & 0x1));	/*  enable channel 0 or 1 */
-};
-
-/* analog input fifo */
-#define ADCDATA			0	/* ADC DATA register */
-#define ADCFIFOCLR		2	/* ADC FIFO CLEAR */
-
-/* pacer, counter, dio registers */
-#define ADC8254			0
-#define DIO_8255		4
-#define DAC8254			8
-
-/* analog output registers for 100x, 1200 series */
-static inline unsigned int DAC_DATA_REG(unsigned int channel)
-{
-	return 2 * (channel & 0x1);
-}
-
-/* analog output registers for 1602 series*/
-#define DACDATA			0	/* DAC DATA register */
-#define DACFIFOCLR		2	/* DAC FIFO CLEAR */
-
-#define IS_UNIPOLAR		0x4	/* unipolar range mask */
-
-/* analog input ranges for most boards */
-static const struct comedi_lrange cb_pcidas_ranges = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-/* pci-das1001 input ranges */
-static const struct comedi_lrange cb_pcidas_alt_ranges = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.01),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01)
-	}
-};
-
-/* analog output ranges */
-static const struct comedi_lrange cb_pcidas_ao_ranges = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-enum trimpot_model {
-	AD7376,
-	AD8402,
-};
-
-enum cb_pcidas_boardid {
-	BOARD_PCIDAS1602_16,
-	BOARD_PCIDAS1200,
-	BOARD_PCIDAS1602_12,
-	BOARD_PCIDAS1200_JR,
-	BOARD_PCIDAS1602_16_JR,
-	BOARD_PCIDAS1000,
-	BOARD_PCIDAS1001,
-	BOARD_PCIDAS1002,
-};
-
-struct cb_pcidas_board {
-	const char *name;
-	int ai_nchan;		/*  Inputs in single-ended mode */
-	int ai_bits;		/*  analog input resolution */
-	int ai_speed;		/*  fastest conversion period in ns */
-	int ao_nchan;		/*  number of analog out channels */
-	int has_ao_fifo;	/*  analog output has fifo */
-	int ao_scan_speed;	/*  analog output scan speed for 1602 series */
-	int fifo_size;		/*  number of samples fifo can hold */
-	const struct comedi_lrange *ranges;
-	enum trimpot_model trimpot;
-	unsigned has_dac08:1;
-	unsigned is_1602:1;
-};
-
-static const struct cb_pcidas_board cb_pcidas_boards[] = {
-	[BOARD_PCIDAS1602_16] = {
-		.name		= "pci-das1602/16",
-		.ai_nchan	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 2,
-		.has_ao_fifo	= 1,
-		.ao_scan_speed	= 10000,
-		.fifo_size	= 512,
-		.ranges		= &cb_pcidas_ranges,
-		.trimpot	= AD8402,
-		.has_dac08	= 1,
-		.is_1602	= 1,
-	},
-	[BOARD_PCIDAS1200] = {
-		.name		= "pci-das1200",
-		.ai_nchan	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 3200,
-		.ao_nchan	= 2,
-		.fifo_size	= 1024,
-		.ranges		= &cb_pcidas_ranges,
-		.trimpot	= AD7376,
-	},
-	[BOARD_PCIDAS1602_12] = {
-		.name		= "pci-das1602/12",
-		.ai_nchan	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 3200,
-		.ao_nchan	= 2,
-		.has_ao_fifo	= 1,
-		.ao_scan_speed	= 4000,
-		.fifo_size	= 1024,
-		.ranges		= &cb_pcidas_ranges,
-		.trimpot	= AD7376,
-		.is_1602	= 1,
-	},
-	[BOARD_PCIDAS1200_JR] = {
-		.name		= "pci-das1200/jr",
-		.ai_nchan	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 3200,
-		.fifo_size	= 1024,
-		.ranges		= &cb_pcidas_ranges,
-		.trimpot	= AD7376,
-	},
-	[BOARD_PCIDAS1602_16_JR] = {
-		.name		= "pci-das1602/16/jr",
-		.ai_nchan	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.fifo_size	= 512,
-		.ranges		= &cb_pcidas_ranges,
-		.trimpot	= AD8402,
-		.has_dac08	= 1,
-		.is_1602	= 1,
-	},
-	[BOARD_PCIDAS1000] = {
-		.name		= "pci-das1000",
-		.ai_nchan	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 4000,
-		.fifo_size	= 1024,
-		.ranges		= &cb_pcidas_ranges,
-		.trimpot	= AD7376,
-	},
-	[BOARD_PCIDAS1001] = {
-		.name		= "pci-das1001",
-		.ai_nchan	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 6800,
-		.ao_nchan	= 2,
-		.fifo_size	= 1024,
-		.ranges		= &cb_pcidas_alt_ranges,
-		.trimpot	= AD7376,
-	},
-	[BOARD_PCIDAS1002] = {
-		.name		= "pci-das1002",
-		.ai_nchan	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 6800,
-		.ao_nchan	= 2,
-		.fifo_size	= 1024,
-		.ranges		= &cb_pcidas_ranges,
-		.trimpot	= AD7376,
-	},
-};
-
-struct cb_pcidas_private {
-	struct comedi_8254 *ao_pacer;
-	/* base addresses */
-	unsigned long s5933_config;
-	unsigned long control_status;
-	unsigned long adc_fifo;
-	unsigned long ao_registers;
-	/* bits to write to registers */
-	unsigned int adc_fifo_bits;
-	unsigned int s5933_intcsr_bits;
-	unsigned int ao_control_bits;
-	/* fifo buffers */
-	unsigned short ai_buffer[AI_BUFFER_SIZE];
-	unsigned short ao_buffer[AO_BUFFER_SIZE];
-	unsigned int calibration_source;
-};
-
-static inline unsigned int cal_enable_bits(struct comedi_device *dev)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-
-	return CAL_EN_BIT | CAL_SRC_BITS(devpriv->calibration_source);
-}
-
-static int cb_pcidas_ai_eoc(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned long context)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned int status;
-
-	status = inw(devpriv->control_status + ADCMUX_CONT);
-	if (status & EOC)
-		return 0;
-	return -EBUSY;
-}
-
-static int cb_pcidas_ai_rinsn(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int aref = CR_AREF(insn->chanspec);
-	unsigned int bits;
-	int ret;
-	int n;
-
-	/* enable calibration input if appropriate */
-	if (insn->chanspec & CR_ALT_SOURCE) {
-		outw(cal_enable_bits(dev),
-		     devpriv->control_status + CALIBRATION_REG);
-		chan = 0;
-	} else {
-		outw(0, devpriv->control_status + CALIBRATION_REG);
-	}
-
-	/* set mux limits and gain */
-	bits = BEGIN_SCAN(chan) | END_SCAN(chan) | GAIN_BITS(range);
-	/* set unipolar/bipolar */
-	if (range & IS_UNIPOLAR)
-		bits |= UNIP;
-	/* set single-ended/differential */
-	if (aref != AREF_DIFF)
-		bits |= SE;
-	outw(bits, devpriv->control_status + ADCMUX_CONT);
-
-	/* clear fifo */
-	outw(0, devpriv->adc_fifo + ADCFIFOCLR);
-
-	/* convert n samples */
-	for (n = 0; n < insn->n; n++) {
-		/* trigger conversion */
-		outw(0, devpriv->adc_fifo + ADCDATA);
-
-		/* wait for conversion to end */
-		ret = comedi_timeout(dev, s, insn, cb_pcidas_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* read data */
-		data[n] = inw(devpriv->adc_fifo + ADCDATA);
-	}
-
-	/* return the number of samples read/written */
-	return n;
-}
-
-static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	int id = data[0];
-	unsigned int source = data[1];
-
-	switch (id) {
-	case INSN_CONFIG_ALT_SOURCE:
-		if (source >= 8) {
-			dev_err(dev->class_dev,
-				"invalid calibration source: %i\n",
-				source);
-			return -EINVAL;
-		}
-		devpriv->calibration_source = source;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return insn->n;
-}
-
-/* analog output insn for pcidas-1000 and 1200 series */
-static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned long flags;
-
-	/* set channel and range */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->ao_control_bits &= (~DAC_MODE_UPDATE_BOTH &
-				     ~DAC_RANGE_MASK(chan));
-	devpriv->ao_control_bits |= (DACEN | DAC_RANGE(chan, range));
-	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/* remember value for readback */
-	s->readback[chan] = data[0];
-
-	/* send data */
-	outw(data[0], devpriv->ao_registers + DAC_DATA_REG(chan));
-
-	return insn->n;
-}
-
-/* analog output insn for pcidas-1602 series */
-static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn, unsigned int *data)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned long flags;
-
-	/* clear dac fifo */
-	outw(0, devpriv->ao_registers + DACFIFOCLR);
-
-	/* set channel and range */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->ao_control_bits &= (~DAC_CHAN_EN(0) & ~DAC_CHAN_EN(1) &
-				     ~DAC_RANGE_MASK(chan) & ~DAC_PACER_MASK);
-	devpriv->ao_control_bits |= (DACEN | DAC_RANGE(chan, range) |
-				     DAC_CHAN_EN(chan) | DAC_START);
-	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/* remember value for readback */
-	s->readback[chan] = data[0];
-
-	/* send data */
-	outw(data[0], devpriv->ao_registers + DACDATA);
-
-	return insn->n;
-}
-
-static int wait_for_nvram_ready(unsigned long s5933_base_addr)
-{
-	static const int timeout = 1000;
-	unsigned int i;
-
-	for (i = 0; i < timeout; i++) {
-		if ((inb(s5933_base_addr +
-			 AMCC_OP_REG_MCSR_NVCMD) & MCSR_NV_BUSY)
-		    == 0)
-			return 0;
-		udelay(1);
-	}
-	return -1;
-}
-
-static int nvram_read(struct comedi_device *dev, unsigned int address,
-		      uint8_t *data)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned long iobase = devpriv->s5933_config;
-
-	if (wait_for_nvram_ready(iobase) < 0)
-		return -ETIMEDOUT;
-
-	outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_LOW_ADDR,
-	     iobase + AMCC_OP_REG_MCSR_NVCMD);
-	outb(address & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA);
-	outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_HIGH_ADDR,
-	     iobase + AMCC_OP_REG_MCSR_NVCMD);
-	outb((address >> 8) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA);
-	outb(MCSR_NV_ENABLE | MCSR_NV_READ, iobase + AMCC_OP_REG_MCSR_NVCMD);
-
-	if (wait_for_nvram_ready(iobase) < 0)
-		return -ETIMEDOUT;
-
-	*data = inb(iobase + AMCC_OP_REG_MCSR_NVDATA);
-
-	return 0;
-}
-
-static int eeprom_read_insn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	uint8_t nvram_data;
-	int retval;
-
-	retval = nvram_read(dev, CR_CHAN(insn->chanspec), &nvram_data);
-	if (retval < 0)
-		return retval;
-
-	data[0] = nvram_data;
-
-	return 1;
-}
-
-static void write_calibration_bitstream(struct comedi_device *dev,
-					unsigned int register_bits,
-					unsigned int bitstream,
-					unsigned int bitstream_length)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	static const int write_delay = 1;
-	unsigned int bit;
-
-	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
-		if (bitstream & bit)
-			register_bits |= SERIAL_DATA_IN_BIT;
-		else
-			register_bits &= ~SERIAL_DATA_IN_BIT;
-		udelay(write_delay);
-		outw(register_bits, devpriv->control_status + CALIBRATION_REG);
-	}
-}
-
-static void caldac_8800_write(struct comedi_device *dev,
-			      unsigned int chan, uint8_t val)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	static const int bitstream_length = 11;
-	unsigned int bitstream = ((chan & 0x7) << 8) | val;
-	static const int caldac_8800_udelay = 1;
-
-	write_calibration_bitstream(dev, cal_enable_bits(dev), bitstream,
-				    bitstream_length);
-
-	udelay(caldac_8800_udelay);
-	outw(cal_enable_bits(dev) | SELECT_8800_BIT,
-	     devpriv->control_status + CALIBRATION_REG);
-	udelay(caldac_8800_udelay);
-	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
-}
-
-static int cb_pcidas_caldac_insn_write(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_insn *insn,
-				       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	if (insn->n) {
-		unsigned int val = data[insn->n - 1];
-
-		if (s->readback[chan] != val) {
-			caldac_8800_write(dev, chan, val);
-			s->readback[chan] = val;
-		}
-	}
-
-	return insn->n;
-}
-
-/* 1602/16 pregain offset */
-static void dac08_write(struct comedi_device *dev, unsigned int value)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-
-	value &= 0xff;
-	value |= cal_enable_bits(dev);
-
-	/* latch the new value into the caldac */
-	outw(value, devpriv->control_status + CALIBRATION_REG);
-	udelay(1);
-	outw(value | SELECT_DAC08_BIT,
-	     devpriv->control_status + CALIBRATION_REG);
-	udelay(1);
-	outw(value, devpriv->control_status + CALIBRATION_REG);
-	udelay(1);
-}
-
-static int cb_pcidas_dac08_insn_write(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	if (insn->n) {
-		unsigned int val = data[insn->n - 1];
-
-		if (s->readback[chan] != val) {
-			dac08_write(dev, val);
-			s->readback[chan] = val;
-		}
-	}
-
-	return insn->n;
-}
-
-static int trimpot_7376_write(struct comedi_device *dev, uint8_t value)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	static const int bitstream_length = 7;
-	unsigned int bitstream = value & 0x7f;
-	unsigned int register_bits;
-	static const int ad7376_udelay = 1;
-
-	register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT;
-	udelay(ad7376_udelay);
-	outw(register_bits, devpriv->control_status + CALIBRATION_REG);
-
-	write_calibration_bitstream(dev, register_bits, bitstream,
-				    bitstream_length);
-
-	udelay(ad7376_udelay);
-	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
-
-	return 0;
-}
-
-/* For 1602/16 only
- * ch 0 : adc gain
- * ch 1 : adc postgain offset */
-static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel,
-			      uint8_t value)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	static const int bitstream_length = 10;
-	unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff);
-	unsigned int register_bits;
-	static const int ad8402_udelay = 1;
-
-	register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT;
-	udelay(ad8402_udelay);
-	outw(register_bits, devpriv->control_status + CALIBRATION_REG);
-
-	write_calibration_bitstream(dev, register_bits, bitstream,
-				    bitstream_length);
-
-	udelay(ad8402_udelay);
-	outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG);
-
-	return 0;
-}
-
-static void cb_pcidas_trimpot_write(struct comedi_device *dev,
-				    unsigned int chan, unsigned int val)
-{
-	const struct cb_pcidas_board *board = dev->board_ptr;
-
-	switch (board->trimpot) {
-	case AD7376:
-		trimpot_7376_write(dev, val);
-		break;
-	case AD8402:
-		trimpot_8402_write(dev, chan, val);
-		break;
-	default:
-		dev_err(dev->class_dev, "driver bug?\n");
-		break;
-	}
-}
-
-static int cb_pcidas_trimpot_insn_write(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	if (insn->n) {
-		unsigned int val = data[insn->n - 1];
-
-		if (s->readback[chan] != val) {
-			cb_pcidas_trimpot_write(dev, chan, val);
-			s->readback[chan] = val;
-		}
-	}
-
-	return insn->n;
-}
-
-static int cb_pcidas_ai_check_chanlist(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-
-		if (chan != (chan0 + i) % s->n_chan) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must be consecutive channels, counting upwards\n");
-			return -EINVAL;
-		}
-
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must all have the same gain\n");
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-
-static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	const struct cb_pcidas_board *board = dev->board_ptr;
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW)
-		err |= -EINVAL;
-	if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_NOW)
-		err |= -EINVAL;
-	if (cmd->start_src == TRIG_EXT &&
-	    (cmd->convert_src == TRIG_EXT || cmd->scan_begin_src == TRIG_EXT))
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		/* External trigger, only CR_EDGE and CR_INVERT flags allowed */
-		if ((cmd->start_arg
-		     & (CR_FLAGS_MASK & ~(CR_EDGE | CR_INVERT))) != 0) {
-			cmd->start_arg &= ~(CR_FLAGS_MASK &
-						~(CR_EDGE | CR_INVERT));
-			err |= -EINVAL;
-		}
-		if (!board->is_1602 && (cmd->start_arg & CR_INVERT)) {
-			cmd->start_arg &= (CR_FLAGS_MASK & ~CR_INVERT);
-			err |= -EINVAL;
-		}
-		break;
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    board->ai_speed *
-						    cmd->chanlist_len);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_speed);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= cb_pcidas_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int cb_pcidas_ai_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	const struct cb_pcidas_board *board = dev->board_ptr;
-	struct cb_pcidas_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int bits;
-	unsigned long flags;
-
-	/*  make sure CAL_EN_BIT is disabled */
-	outw(0, devpriv->control_status + CALIBRATION_REG);
-	/*  initialize before settings pacer source and count values */
-	outw(0, devpriv->control_status + TRIG_CONTSTAT);
-	/*  clear fifo */
-	outw(0, devpriv->adc_fifo + ADCFIFOCLR);
-
-	/*  set mux limits, gain and pacer source */
-	bits = BEGIN_SCAN(CR_CHAN(cmd->chanlist[0])) |
-	    END_SCAN(CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1])) |
-	    GAIN_BITS(CR_RANGE(cmd->chanlist[0]));
-	/*  set unipolar/bipolar */
-	if (CR_RANGE(cmd->chanlist[0]) & IS_UNIPOLAR)
-		bits |= UNIP;
-	/*  set singleended/differential */
-	if (CR_AREF(cmd->chanlist[0]) != AREF_DIFF)
-		bits |= SE;
-	/*  set pacer source */
-	if (cmd->convert_src == TRIG_EXT || cmd->scan_begin_src == TRIG_EXT)
-		bits |= PACER_EXT_RISE;
-	else
-		bits |= PACER_INT;
-	outw(bits, devpriv->control_status + ADCMUX_CONT);
-
-	/*  load counters */
-	if (cmd->scan_begin_src == TRIG_TIMER ||
-	    cmd->convert_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-	}
-
-	/*  enable interrupts */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->adc_fifo_bits |= INTE;
-	devpriv->adc_fifo_bits &= ~INT_MASK;
-	if (cmd->flags & CMDF_WAKE_EOS) {
-		if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) {
-			/* interrupt end of burst */
-			devpriv->adc_fifo_bits |= INT_EOS;
-		} else {
-			/* interrupt fifo not empty */
-			devpriv->adc_fifo_bits |= INT_FNE;
-		}
-	} else {
-		/* interrupt fifo half full */
-		devpriv->adc_fifo_bits |= INT_FHF;
-	}
-
-	/*  enable (and clear) interrupts */
-	outw(devpriv->adc_fifo_bits | EOAI | INT | LADFUL,
-	     devpriv->control_status + INT_ADCFIFO);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/*  set start trigger and burst mode */
-	bits = 0;
-	if (cmd->start_src == TRIG_NOW) {
-		bits |= SW_TRIGGER;
-	} else {	/* TRIG_EXT */
-		bits |= EXT_TRIGGER | TGEN | XTRCL;
-		if (board->is_1602) {
-			if (cmd->start_arg & CR_INVERT)
-				bits |= TGPOL;
-			if (cmd->start_arg & CR_EDGE)
-				bits |= TGSEL;
-		}
-	}
-	if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1)
-		bits |= BURSTE;
-	outw(bits, devpriv->control_status + TRIG_CONTSTAT);
-
-	return 0;
-}
-
-static int cb_pcidas_ao_check_chanlist(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-
-	if (cmd->chanlist_len > 1) {
-		unsigned int chan1 = CR_CHAN(cmd->chanlist[1]);
-
-		if (chan0 != 0 || chan1 != 1) {
-			dev_dbg(dev->class_dev,
-				"channels must be ordered channel 0, channel 1 in chanlist\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int cb_pcidas_ao_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	const struct cb_pcidas_board *board = dev->board_ptr;
-	struct cb_pcidas_private *devpriv = dev->private;
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    board->ao_scan_speed);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		unsigned int arg = cmd->scan_begin_arg;
-
-		comedi_8254_cascade_ns_to_timer(devpriv->ao_pacer,
-						&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= cb_pcidas_ao_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-/* cancel analog input command */
-static int cb_pcidas_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	/*  disable interrupts */
-	devpriv->adc_fifo_bits &= ~INTE & ~EOAIE;
-	outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/*  disable start trigger source and burst mode */
-	outw(0, devpriv->control_status + TRIG_CONTSTAT);
-	/*  software pacer source */
-	outw(0, devpriv->control_status + ADCMUX_CONT);
-
-	return 0;
-}
-
-static void cb_pcidas_ao_load_fifo(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int nsamples)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned int nbytes;
-
-	nsamples = comedi_nsamples_left(s, nsamples);
-	nbytes = comedi_buf_read_samples(s, devpriv->ao_buffer, nsamples);
-
-	nsamples = comedi_bytes_to_samples(s, nbytes);
-	outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, nsamples);
-}
-
-static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned int trig_num)
-{
-	const struct cb_pcidas_board *board = dev->board_ptr;
-	struct cb_pcidas_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned long flags;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	cb_pcidas_ao_load_fifo(dev, s, board->fifo_size);
-
-	/*  enable dac half-full and empty interrupts */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->adc_fifo_bits |= DAEMIE | DAHFIE;
-
-	/*  enable and clear interrupts */
-	outw(devpriv->adc_fifo_bits | DAEMI | DAHFI,
-	     devpriv->control_status + INT_ADCFIFO);
-
-	/*  start dac */
-	devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY;
-	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	async->inttrig = NULL;
-
-	return 0;
-}
-
-static int cb_pcidas_ao_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int i;
-	unsigned long flags;
-
-	/*  set channel limits, gain */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		/*  enable channel */
-		devpriv->ao_control_bits |=
-		    DAC_CHAN_EN(CR_CHAN(cmd->chanlist[i]));
-		/*  set range */
-		devpriv->ao_control_bits |= DAC_RANGE(CR_CHAN(cmd->chanlist[i]),
-						      CR_RANGE(cmd->
-							       chanlist[i]));
-	}
-
-	/*  disable analog out before settings pacer source and count values */
-	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/*  clear fifo */
-	outw(0, devpriv->ao_registers + DACFIFOCLR);
-
-	/*  load counters */
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(devpriv->ao_pacer);
-		comedi_8254_pacer_enable(devpriv->ao_pacer, 1, 2, true);
-	}
-
-	/*  set pacer source */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		devpriv->ao_control_bits |= DAC_PACER_INT;
-		break;
-	case TRIG_EXT:
-		devpriv->ao_control_bits |= DAC_PACER_EXT_RISE;
-		break;
-	default:
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		dev_err(dev->class_dev, "error setting dac pacer source\n");
-		return -1;
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	async->inttrig = cb_pcidas_ao_inttrig;
-
-	return 0;
-}
-
-/* cancel analog output command */
-static int cb_pcidas_ao_cancel(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	/*  disable interrupts */
-	devpriv->adc_fifo_bits &= ~DAHFIE & ~DAEMIE;
-	outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO);
-
-	/*  disable output */
-	devpriv->ao_control_bits &= ~DACEN & ~DAC_PACER_MASK;
-	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return 0;
-}
-
-static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
-{
-	const struct cb_pcidas_board *board = dev->board_ptr;
-	struct cb_pcidas_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned long flags;
-
-	if (status & DAEMI) {
-		/*  clear dac empty interrupt latch */
-		spin_lock_irqsave(&dev->spinlock, flags);
-		outw(devpriv->adc_fifo_bits | DAEMI,
-		     devpriv->control_status + INT_ADCFIFO);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		if (inw(devpriv->ao_registers + DAC_CSR) & DAC_EMPTY) {
-			if (cmd->stop_src == TRIG_COUNT &&
-			    async->scans_done >= cmd->stop_arg) {
-				async->events |= COMEDI_CB_EOA;
-			} else {
-				dev_err(dev->class_dev, "dac fifo underflow\n");
-				async->events |= COMEDI_CB_ERROR;
-			}
-		}
-	} else if (status & DAHFI) {
-		cb_pcidas_ao_load_fifo(dev, s, board->fifo_size / 2);
-
-		/*  clear half-full interrupt latch */
-		spin_lock_irqsave(&dev->spinlock, flags);
-		outw(devpriv->adc_fifo_bits | DAHFI,
-		     devpriv->control_status + INT_ADCFIFO);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-	}
-
-	comedi_handle_events(dev, s);
-}
-
-static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = (struct comedi_device *)d;
-	const struct cb_pcidas_board *board = dev->board_ptr;
-	struct cb_pcidas_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async;
-	struct comedi_cmd *cmd;
-	int status, s5933_status;
-	int half_fifo = board->fifo_size / 2;
-	unsigned int num_samples, i;
-	static const int timeout = 10000;
-	unsigned long flags;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	async = s->async;
-	cmd = &async->cmd;
-
-	s5933_status = inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR);
-
-	if ((INTCSR_INTR_ASSERTED & s5933_status) == 0)
-		return IRQ_NONE;
-
-	/*  make sure mailbox 4 is empty */
-	inl_p(devpriv->s5933_config + AMCC_OP_REG_IMB4);
-	/*  clear interrupt on amcc s5933 */
-	outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS,
-	     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
-
-	status = inw(devpriv->control_status + INT_ADCFIFO);
-
-	/*  check for analog output interrupt */
-	if (status & (DAHFI | DAEMI))
-		handle_ao_interrupt(dev, status);
-	/*  check for analog input interrupts */
-	/*  if fifo half-full */
-	if (status & ADHFI) {
-		/*  read data */
-		num_samples = comedi_nsamples_left(s, half_fifo);
-		insw(devpriv->adc_fifo + ADCDATA, devpriv->ai_buffer,
-		     num_samples);
-		comedi_buf_write_samples(s, devpriv->ai_buffer, num_samples);
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg)
-			async->events |= COMEDI_CB_EOA;
-
-		/*  clear half-full interrupt latch */
-		spin_lock_irqsave(&dev->spinlock, flags);
-		outw(devpriv->adc_fifo_bits | INT,
-		     devpriv->control_status + INT_ADCFIFO);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		/*  else if fifo not empty */
-	} else if (status & (ADNEI | EOBI)) {
-		for (i = 0; i < timeout; i++) {
-			unsigned short val;
-
-			/*  break if fifo is empty */
-			if ((ADNE & inw(devpriv->control_status +
-					INT_ADCFIFO)) == 0)
-				break;
-			val = inw(devpriv->adc_fifo);
-			comedi_buf_write_samples(s, &val, 1);
-
-			if (cmd->stop_src == TRIG_COUNT &&
-			    async->scans_done >= cmd->stop_arg) {
-				async->events |= COMEDI_CB_EOA;
-				break;
-			}
-		}
-		/*  clear not-empty interrupt latch */
-		spin_lock_irqsave(&dev->spinlock, flags);
-		outw(devpriv->adc_fifo_bits | INT,
-		     devpriv->control_status + INT_ADCFIFO);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-	} else if (status & EOAI) {
-		dev_err(dev->class_dev,
-			"bug! encountered end of acquisition interrupt?\n");
-		/*  clear EOA interrupt latch */
-		spin_lock_irqsave(&dev->spinlock, flags);
-		outw(devpriv->adc_fifo_bits | EOAI,
-		     devpriv->control_status + INT_ADCFIFO);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-	}
-	/* check for fifo overflow */
-	if (status & LADFUL) {
-		dev_err(dev->class_dev, "fifo overflow\n");
-		/*  clear overflow interrupt latch */
-		spin_lock_irqsave(&dev->spinlock, flags);
-		outw(devpriv->adc_fifo_bits | LADFUL,
-		     devpriv->control_status + INT_ADCFIFO);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		async->events |= COMEDI_CB_ERROR;
-	}
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int cb_pcidas_auto_attach(struct comedi_device *dev,
-				 unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct cb_pcidas_board *board = NULL;
-	struct cb_pcidas_private *devpriv;
-	struct comedi_subdevice *s;
-	int i;
-	int ret;
-
-	if (context < ARRAY_SIZE(cb_pcidas_boards))
-		board = &cb_pcidas_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr  = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv->s5933_config = pci_resource_start(pcidev, 0);
-	devpriv->control_status = pci_resource_start(pcidev, 1);
-	devpriv->adc_fifo = pci_resource_start(pcidev, 2);
-	dev->iobase = pci_resource_start(pcidev, 3);
-	if (board->ao_nchan)
-		devpriv->ao_registers = pci_resource_start(pcidev, 4);
-
-	/*  disable and clear interrupts on amcc s5933 */
-	outl(INTCSR_INBOX_INTR_STATUS,
-	     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
-
-	ret = request_irq(pcidev->irq, cb_pcidas_interrupt, IRQF_SHARED,
-			  dev->board_name, dev);
-	if (ret) {
-		dev_dbg(dev->class_dev, "unable to allocate irq %d\n",
-			pcidev->irq);
-		return ret;
-	}
-	dev->irq = pcidev->irq;
-
-	dev->pacer = comedi_8254_init(dev->iobase + ADC8254,
-				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	devpriv->ao_pacer = comedi_8254_init(dev->iobase + DAC8254,
-					     I8254_OSC_BASE_10MHZ,
-					     I8254_IO8, 0);
-	if (!devpriv->ao_pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 7);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog input subdevice */
-	dev->read_subdev = s;
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ;
-	/* WARNING: Number of inputs in differential mode is ignored */
-	s->n_chan = board->ai_nchan;
-	s->len_chanlist = board->ai_nchan;
-	s->maxdata = (1 << board->ai_bits) - 1;
-	s->range_table = board->ranges;
-	s->insn_read = cb_pcidas_ai_rinsn;
-	s->insn_config = ai_config_insn;
-	s->do_cmd = cb_pcidas_ai_cmd;
-	s->do_cmdtest = cb_pcidas_ai_cmdtest;
-	s->cancel = cb_pcidas_cancel;
-
-	/* analog output subdevice */
-	s = &dev->subdevices[1];
-	if (board->ao_nchan) {
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND;
-		s->n_chan = board->ao_nchan;
-		/*
-		 * analog out resolution is the same as
-		 * analog input resolution, so use ai_bits
-		 */
-		s->maxdata = (1 << board->ai_bits) - 1;
-		s->range_table = &cb_pcidas_ao_ranges;
-		/* default to no fifo (*insn_write) */
-		s->insn_write = cb_pcidas_ao_nofifo_winsn;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		if (board->has_ao_fifo) {
-			dev->write_subdev = s;
-			s->subdev_flags |= SDF_CMD_WRITE;
-			/* use fifo (*insn_write) instead */
-			s->insn_write = cb_pcidas_ao_fifo_winsn;
-			s->do_cmdtest = cb_pcidas_ao_cmdtest;
-			s->do_cmd = cb_pcidas_ao_cmd;
-			s->cancel = cb_pcidas_ao_cancel;
-		}
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/* 8255 */
-	s = &dev->subdevices[2];
-	ret = subdev_8255_init(dev, s, NULL, DIO_8255);
-	if (ret)
-		return ret;
-
-	/*  serial EEPROM, */
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_MEMORY;
-	s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
-	s->n_chan = 256;
-	s->maxdata = 0xff;
-	s->insn_read = eeprom_read_insn;
-
-	/*  8800 caldac */
-	s = &dev->subdevices[4];
-	s->type = COMEDI_SUBD_CALIB;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan = NUM_CHANNELS_8800;
-	s->maxdata = 0xff;
-	s->insn_write = cb_pcidas_caldac_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < s->n_chan; i++) {
-		caldac_8800_write(dev, i, s->maxdata / 2);
-		s->readback[i] = s->maxdata / 2;
-	}
-
-	/*  trim potentiometer */
-	s = &dev->subdevices[5];
-	s->type = COMEDI_SUBD_CALIB;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	if (board->trimpot == AD7376) {
-		s->n_chan = NUM_CHANNELS_7376;
-		s->maxdata = 0x7f;
-	} else {
-		s->n_chan = NUM_CHANNELS_8402;
-		s->maxdata = 0xff;
-	}
-	s->insn_write = cb_pcidas_trimpot_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < s->n_chan; i++) {
-		cb_pcidas_trimpot_write(dev, i, s->maxdata / 2);
-		s->readback[i] = s->maxdata / 2;
-	}
-
-	/*  dac08 caldac */
-	s = &dev->subdevices[6];
-	if (board->has_dac08) {
-		s->type = COMEDI_SUBD_CALIB;
-		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-		s->n_chan = NUM_CHANNELS_DAC08;
-		s->maxdata = 0xff;
-		s->insn_write = cb_pcidas_dac08_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		for (i = 0; i < s->n_chan; i++) {
-			dac08_write(dev, s->maxdata / 2);
-			s->readback[i] = s->maxdata / 2;
-		}
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/*  make sure mailbox 4 is empty */
-	inl(devpriv->s5933_config + AMCC_OP_REG_IMB4);
-	/* Set bits to enable incoming mailbox interrupts on amcc s5933. */
-	devpriv->s5933_intcsr_bits =
-	    INTCSR_INBOX_BYTE(3) | INTCSR_INBOX_SELECT(3) |
-	    INTCSR_INBOX_FULL_INT;
-	/*  clear and enable interrupt on amcc s5933 */
-	outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS,
-	     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
-
-	return 0;
-}
-
-static void cb_pcidas_detach(struct comedi_device *dev)
-{
-	struct cb_pcidas_private *devpriv = dev->private;
-
-	if (devpriv) {
-		if (devpriv->s5933_config)
-			outl(INTCSR_INBOX_INTR_STATUS,
-			     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
-		kfree(devpriv->ao_pacer);
-	}
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver cb_pcidas_driver = {
-	.driver_name	= "cb_pcidas",
-	.module		= THIS_MODULE,
-	.auto_attach	= cb_pcidas_auto_attach,
-	.detach		= cb_pcidas_detach,
-};
-
-static int cb_pcidas_pci_probe(struct pci_dev *dev,
-			       const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &cb_pcidas_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id cb_pcidas_pci_table[] = {
-	{ PCI_VDEVICE(CB, 0x0001), BOARD_PCIDAS1602_16 },
-	{ PCI_VDEVICE(CB, 0x000f), BOARD_PCIDAS1200 },
-	{ PCI_VDEVICE(CB, 0x0010), BOARD_PCIDAS1602_12 },
-	{ PCI_VDEVICE(CB, 0x0019), BOARD_PCIDAS1200_JR },
-	{ PCI_VDEVICE(CB, 0x001c), BOARD_PCIDAS1602_16_JR },
-	{ PCI_VDEVICE(CB, 0x004c), BOARD_PCIDAS1000 },
-	{ PCI_VDEVICE(CB, 0x001a), BOARD_PCIDAS1001 },
-	{ PCI_VDEVICE(CB, 0x001b), BOARD_PCIDAS1002 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, cb_pcidas_pci_table);
-
-static struct pci_driver cb_pcidas_pci_driver = {
-	.name		= "cb_pcidas",
-	.id_table	= cb_pcidas_pci_table,
-	.probe		= cb_pcidas_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(cb_pcidas_driver, cb_pcidas_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
deleted file mode 100644
index d33b8fe872a7..000000000000
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ /dev/null
@@ -1,4129 +0,0 @@
-/*
-    comedi/drivers/cb_pcidas64.c
-    This is a driver for the ComputerBoards/MeasurementComputing PCI-DAS
-    64xx, 60xx, and 4020 cards.
-
-    Author:  Frank Mori Hess <fmhess@users.sourceforge.net>
-    Copyright (C) 2001, 2002 Frank Mori Hess
-
-    Thanks also go to the following people:
-
-    Steve Rosenbluth, for providing the source code for
-    his pci-das6402 driver, and source code for working QNX pci-6402
-    drivers by Greg Laird and Mariusz Bogacz.  None of the code was
-    used directly here, but it was useful as an additional source of
-    documentation on how to program the boards.
-
-    John Sims, for much testing and feedback on pcidas-4020 support.
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-/*
- * Driver: cb_pcidas64
- * Description: MeasurementComputing PCI-DAS64xx, 60XX, and 4020 series
- *   with the PLX 9080 PCI controller
- * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
- * Status: works
- * Updated: Fri, 02 Nov 2012 18:58:55 +0000
- * Devices: [Measurement Computing] PCI-DAS6402/16 (cb_pcidas64),
- *   PCI-DAS6402/12, PCI-DAS64/M1/16, PCI-DAS64/M2/16,
- *   PCI-DAS64/M3/16, PCI-DAS6402/16/JR, PCI-DAS64/M1/16/JR,
- *   PCI-DAS64/M2/16/JR, PCI-DAS64/M3/16/JR, PCI-DAS64/M1/14,
- *   PCI-DAS64/M2/14, PCI-DAS64/M3/14, PCI-DAS6013, PCI-DAS6014,
- *   PCI-DAS6023, PCI-DAS6025, PCI-DAS6030,
- *   PCI-DAS6031, PCI-DAS6032, PCI-DAS6033, PCI-DAS6034,
- *   PCI-DAS6035, PCI-DAS6036, PCI-DAS6040, PCI-DAS6052,
- *   PCI-DAS6070, PCI-DAS6071, PCI-DAS4020/12
- *
- * Configuration options:
- *   None.
- *
- * Manual attachment of PCI cards with the comedi_config utility is not
- * supported by this driver; they are attached automatically.
- *
- * These boards may be autocalibrated with the comedi_calibrate utility.
- *
- * To select the bnc trigger input on the 4020 (instead of the dio input),
- * specify a nonzero channel in the chanspec.  If you wish to use an external
- * master clock on the 4020, you may do so by setting the scan_begin_src
- * to TRIG_OTHER, and using an INSN_CONFIG_TIMER_1 configuration insn
- * to configure the divisor to use for the external clock.
- *
- * Some devices are not identified because the PCI device IDs are not yet
- * known. If you have such a board, please let the maintainers know.
- */
-
-/*
-
-TODO:
-	make it return error if user attempts an ai command that uses the
-	external queue, and an ao command simultaneously user counter subdevice
-	there are a number of boards this driver will support when they are
-	fully released, but does not yet since the pci device id numbers
-	are not yet available.
-
-	support prescaled 100khz clock for slow pacing (not available on 6000
-	series?)
-
-	make ao fifo size adjustable like ai fifo
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "8255.h"
-#include "plx9080.h"
-
-#define TIMER_BASE 25		/*  40MHz master clock */
-/* 100kHz 'prescaled' clock for slow acquisition,
- * maybe I'll support this someday */
-#define PRESCALED_TIMER_BASE	10000
-#define DMA_BUFFER_SIZE 0x1000
-
-/* maximum value that can be loaded into board's 24-bit counters*/
-static const int max_counter_value = 0xffffff;
-
-/* PCI-DAS64xxx base addresses */
-
-/* devpriv->main_iobase registers */
-enum write_only_registers {
-	INTR_ENABLE_REG = 0x0,	/*  interrupt enable register */
-	HW_CONFIG_REG = 0x2,	/*  hardware config register */
-	DAQ_SYNC_REG = 0xc,
-	DAQ_ATRIG_LOW_4020_REG = 0xc,
-	ADC_CONTROL0_REG = 0x10,	/*  adc control register 0 */
-	ADC_CONTROL1_REG = 0x12,	/*  adc control register 1 */
-	CALIBRATION_REG = 0x14,
-	/*  lower 16 bits of adc sample interval counter */
-	ADC_SAMPLE_INTERVAL_LOWER_REG = 0x16,
-	/*  upper 8 bits of adc sample interval counter */
-	ADC_SAMPLE_INTERVAL_UPPER_REG = 0x18,
-	/*  lower 16 bits of delay interval counter */
-	ADC_DELAY_INTERVAL_LOWER_REG = 0x1a,
-	/*  upper 8 bits of delay interval counter */
-	ADC_DELAY_INTERVAL_UPPER_REG = 0x1c,
-	/*  lower 16 bits of hardware conversion/scan counter */
-	ADC_COUNT_LOWER_REG = 0x1e,
-	/*  upper 8 bits of hardware conversion/scan counter */
-	ADC_COUNT_UPPER_REG = 0x20,
-	ADC_START_REG = 0x22,	/*  software trigger to start acquisition */
-	ADC_CONVERT_REG = 0x24,	/*  initiates single conversion */
-	ADC_QUEUE_CLEAR_REG = 0x26,	/*  clears adc queue */
-	ADC_QUEUE_LOAD_REG = 0x28,	/*  loads adc queue */
-	ADC_BUFFER_CLEAR_REG = 0x2a,
-	/*  high channel for internal queue, use adc_chan_bits() inline above */
-	ADC_QUEUE_HIGH_REG = 0x2c,
-	DAC_CONTROL0_REG = 0x50,	/*  dac control register 0 */
-	DAC_CONTROL1_REG = 0x52,	/*  dac control register 0 */
-	/*  lower 16 bits of dac sample interval counter */
-	DAC_SAMPLE_INTERVAL_LOWER_REG = 0x54,
-	/*  upper 8 bits of dac sample interval counter */
-	DAC_SAMPLE_INTERVAL_UPPER_REG = 0x56,
-	DAC_SELECT_REG = 0x60,
-	DAC_START_REG = 0x64,
-	DAC_BUFFER_CLEAR_REG = 0x66,	/*  clear dac buffer */
-};
-
-static inline unsigned int dac_convert_reg(unsigned int channel)
-{
-	return 0x70 + (2 * (channel & 0x1));
-}
-
-static inline unsigned int dac_lsb_4020_reg(unsigned int channel)
-{
-	return 0x70 + (4 * (channel & 0x1));
-}
-
-static inline unsigned int dac_msb_4020_reg(unsigned int channel)
-{
-	return 0x72 + (4 * (channel & 0x1));
-}
-
-enum read_only_registers {
-	/*
-	 * hardware status register,
-	 * reading this apparently clears pending interrupts as well
-	 */
-	HW_STATUS_REG = 0x0,
-	PIPE1_READ_REG = 0x4,
-	ADC_READ_PNTR_REG = 0x8,
-	LOWER_XFER_REG = 0x10,
-	ADC_WRITE_PNTR_REG = 0xc,
-	PREPOST_REG = 0x14,
-};
-
-enum read_write_registers {
-	I8255_4020_REG = 0x48,	/*  8255 offset, for 4020 only */
-	/*  external channel/gain queue, uses same bits as ADC_QUEUE_LOAD_REG */
-	ADC_QUEUE_FIFO_REG = 0x100,
-	ADC_FIFO_REG = 0x200,	/* adc data fifo */
-	/* dac data fifo, has weird interactions with external channel queue */
-	DAC_FIFO_REG = 0x300,
-};
-
-/* dev->mmio registers */
-enum dio_counter_registers {
-	DIO_8255_OFFSET = 0x0,
-	DO_REG = 0x20,
-	DI_REG = 0x28,
-	DIO_DIRECTION_60XX_REG = 0x40,
-	DIO_DATA_60XX_REG = 0x48,
-};
-
-/* bit definitions for write-only registers */
-
-enum intr_enable_contents {
-	ADC_INTR_SRC_MASK = 0x3,	/*  adc interrupt source mask */
-	ADC_INTR_QFULL_BITS = 0x0,	/*  interrupt fifo quarter full */
-	ADC_INTR_EOC_BITS = 0x1,	/*  interrupt end of conversion */
-	ADC_INTR_EOSCAN_BITS = 0x2,	/*  interrupt end of scan */
-	ADC_INTR_EOSEQ_BITS = 0x3,	/*  interrupt end of sequence mask */
-	EN_ADC_INTR_SRC_BIT = 0x4,	/*  enable adc interrupt source */
-	EN_ADC_DONE_INTR_BIT = 0x8,	/*  enable adc acquisition done intr */
-	DAC_INTR_SRC_MASK = 0x30,
-	DAC_INTR_QEMPTY_BITS = 0x0,
-	DAC_INTR_HIGH_CHAN_BITS = 0x10,
-	EN_DAC_INTR_SRC_BIT = 0x40,	/*  enable dac interrupt source */
-	EN_DAC_DONE_INTR_BIT = 0x80,
-	EN_ADC_ACTIVE_INTR_BIT = 0x200,	/*  enable adc active interrupt */
-	EN_ADC_STOP_INTR_BIT = 0x400,	/*  enable adc stop trigger interrupt */
-	EN_DAC_ACTIVE_INTR_BIT = 0x800,	/*  enable dac active interrupt */
-	EN_DAC_UNDERRUN_BIT = 0x4000,	/*  enable dac underrun status bit */
-	EN_ADC_OVERRUN_BIT = 0x8000,	/*  enable adc overrun status bit */
-};
-
-enum hw_config_contents {
-	MASTER_CLOCK_4020_MASK = 0x3,	/*  master clock source mask for 4020 */
-	INTERNAL_CLOCK_4020_BITS = 0x1,	/*  use 40 MHz internal master clock */
-	BNC_CLOCK_4020_BITS = 0x2,	/*  use BNC input for master clock */
-	EXT_CLOCK_4020_BITS = 0x3,	/*  use dio input for master clock */
-	EXT_QUEUE_BIT = 0x200,		/*  use external channel/gain queue */
-	/*  use 225 nanosec strobe when loading dac instead of 50 nanosec */
-	SLOW_DAC_BIT = 0x400,
-	/*  bit with unknown function yet given as default value in pci-das64
-	 *  manual */
-	HW_CONFIG_DUMMY_BITS = 0x2000,
-	/*  bit selects channels 1/0 for analog input/output, otherwise 0/1 */
-	DMA_CH_SELECT_BIT = 0x8000,
-	FIFO_SIZE_REG = 0x4,		/*  allows adjustment of fifo sizes */
-	DAC_FIFO_SIZE_MASK = 0xff00,	/*  bits that set dac fifo size */
-	DAC_FIFO_BITS = 0xf800,		/*  8k sample ao fifo */
-};
-#define DAC_FIFO_SIZE 0x2000
-
-enum daq_atrig_low_4020_contents {
-	/*  use trig/ext clk bnc input for analog gate signal */
-	EXT_AGATE_BNC_BIT = 0x8000,
-	/*  use trig/ext clk bnc input for external stop trigger signal */
-	EXT_STOP_TRIG_BNC_BIT = 0x4000,
-	/*  use trig/ext clk bnc input for external start trigger signal */
-	EXT_START_TRIG_BNC_BIT = 0x2000,
-};
-
-static inline uint16_t analog_trig_low_threshold_bits(uint16_t threshold)
-{
-	return threshold & 0xfff;
-}
-
-enum adc_control0_contents {
-	ADC_GATE_SRC_MASK = 0x3,	/*  bits that select gate */
-	ADC_SOFT_GATE_BITS = 0x1,	/*  software gate */
-	ADC_EXT_GATE_BITS = 0x2,	/*  external digital gate */
-	ADC_ANALOG_GATE_BITS = 0x3,	/*  analog level gate */
-	/*  level-sensitive gate (for digital) */
-	ADC_GATE_LEVEL_BIT = 0x4,
-	ADC_GATE_POLARITY_BIT = 0x8,	/*  gate active low */
-	ADC_START_TRIG_SOFT_BITS = 0x10,
-	ADC_START_TRIG_EXT_BITS = 0x20,
-	ADC_START_TRIG_ANALOG_BITS = 0x30,
-	ADC_START_TRIG_MASK = 0x30,
-	ADC_START_TRIG_FALLING_BIT = 0x40,	/*  trig 1 uses falling edge */
-	/*  external pacing uses falling edge */
-	ADC_EXT_CONV_FALLING_BIT = 0x800,
-	/*  enable hardware scan counter */
-	ADC_SAMPLE_COUNTER_EN_BIT = 0x1000,
-	ADC_DMA_DISABLE_BIT = 0x4000,	/*  disables dma */
-	ADC_ENABLE_BIT = 0x8000,	/*  master adc enable */
-};
-
-enum adc_control1_contents {
-	/*  should be set for boards with > 16 channels */
-	ADC_QUEUE_CONFIG_BIT = 0x1,
-	CONVERT_POLARITY_BIT = 0x10,
-	EOC_POLARITY_BIT = 0x20,
-	ADC_SW_GATE_BIT = 0x40,	/*  software gate of adc */
-	ADC_DITHER_BIT = 0x200,	/*  turn on extra noise for dithering */
-	RETRIGGER_BIT = 0x800,
-	ADC_LO_CHANNEL_4020_MASK = 0x300,
-	ADC_HI_CHANNEL_4020_MASK = 0xc00,
-	TWO_CHANNEL_4020_BITS = 0x1000,	/*  two channel mode for 4020 */
-	FOUR_CHANNEL_4020_BITS = 0x2000, /*  four channel mode for 4020 */
-	CHANNEL_MODE_4020_MASK = 0x3000,
-	ADC_MODE_MASK = 0xf000,
-};
-
-static inline uint16_t adc_lo_chan_4020_bits(unsigned int channel)
-{
-	return (channel & 0x3) << 8;
-};
-
-static inline uint16_t adc_hi_chan_4020_bits(unsigned int channel)
-{
-	return (channel & 0x3) << 10;
-};
-
-static inline uint16_t adc_mode_bits(unsigned int mode)
-{
-	return (mode & 0xf) << 12;
-};
-
-enum calibration_contents {
-	SELECT_8800_BIT = 0x1,
-	SELECT_8402_64XX_BIT = 0x2,
-	SELECT_1590_60XX_BIT = 0x2,
-	CAL_EN_64XX_BIT = 0x40,	/*  calibration enable for 64xx series */
-	SERIAL_DATA_IN_BIT = 0x80,
-	SERIAL_CLOCK_BIT = 0x100,
-	CAL_EN_60XX_BIT = 0x200, /*  calibration enable for 60xx series */
-	CAL_GAIN_BIT = 0x800,
-};
-
-/*
- * calibration sources for 6025 are:
- *  0 : ground
- *  1 : 10V
- *  2 : 5V
- *  3 : 0.5V
- *  4 : 0.05V
- *  5 : ground
- *  6 : dac channel 0
- *  7 : dac channel 1
- */
-
-static inline uint16_t adc_src_bits(unsigned int source)
-{
-	return (source & 0xf) << 3;
-};
-
-static inline uint16_t adc_convert_chan_4020_bits(unsigned int channel)
-{
-	return (channel & 0x3) << 8;
-};
-
-enum adc_queue_load_contents {
-	UNIP_BIT = 0x800,	/*  unipolar/bipolar bit */
-	ADC_SE_DIFF_BIT = 0x1000,	/*  single-ended/ differential bit */
-	/*  non-referenced single-ended (common-mode input) */
-	ADC_COMMON_BIT = 0x2000,
-	QUEUE_EOSEQ_BIT = 0x4000,	/*  queue end of sequence */
-	QUEUE_EOSCAN_BIT = 0x8000,	/*  queue end of scan */
-};
-
-static inline uint16_t adc_chan_bits(unsigned int channel)
-{
-	return channel & 0x3f;
-};
-
-enum dac_control0_contents {
-	DAC_ENABLE_BIT = 0x8000,	/*  dac controller enable bit */
-	DAC_CYCLIC_STOP_BIT = 0x4000,
-	DAC_WAVEFORM_MODE_BIT = 0x100,
-	DAC_EXT_UPDATE_FALLING_BIT = 0x80,
-	DAC_EXT_UPDATE_ENABLE_BIT = 0x40,
-	WAVEFORM_TRIG_MASK = 0x30,
-	WAVEFORM_TRIG_DISABLED_BITS = 0x0,
-	WAVEFORM_TRIG_SOFT_BITS = 0x10,
-	WAVEFORM_TRIG_EXT_BITS = 0x20,
-	WAVEFORM_TRIG_ADC1_BITS = 0x30,
-	WAVEFORM_TRIG_FALLING_BIT = 0x8,
-	WAVEFORM_GATE_LEVEL_BIT = 0x4,
-	WAVEFORM_GATE_ENABLE_BIT = 0x2,
-	WAVEFORM_GATE_SELECT_BIT = 0x1,
-};
-
-enum dac_control1_contents {
-	DAC_WRITE_POLARITY_BIT = 0x800,	/* board-dependent setting */
-	DAC1_EXT_REF_BIT = 0x200,
-	DAC0_EXT_REF_BIT = 0x100,
-	DAC_OUTPUT_ENABLE_BIT = 0x80,	/*  dac output enable bit */
-	DAC_UPDATE_POLARITY_BIT = 0x40,	/* board-dependent setting */
-	DAC_SW_GATE_BIT = 0x20,
-	DAC1_UNIPOLAR_BIT = 0x8,
-	DAC0_UNIPOLAR_BIT = 0x2,
-};
-
-/* bit definitions for read-only registers */
-enum hw_status_contents {
-	DAC_UNDERRUN_BIT = 0x1,
-	ADC_OVERRUN_BIT = 0x2,
-	DAC_ACTIVE_BIT = 0x4,
-	ADC_ACTIVE_BIT = 0x8,
-	DAC_INTR_PENDING_BIT = 0x10,
-	ADC_INTR_PENDING_BIT = 0x20,
-	DAC_DONE_BIT = 0x40,
-	ADC_DONE_BIT = 0x80,
-	EXT_INTR_PENDING_BIT = 0x100,
-	ADC_STOP_BIT = 0x200,
-};
-
-static inline uint16_t pipe_full_bits(uint16_t hw_status_bits)
-{
-	return (hw_status_bits >> 10) & 0x3;
-};
-
-static inline unsigned int dma_chain_flag_bits(uint16_t prepost_bits)
-{
-	return (prepost_bits >> 6) & 0x3;
-}
-
-static inline unsigned int adc_upper_read_ptr_code(uint16_t prepost_bits)
-{
-	return (prepost_bits >> 12) & 0x3;
-}
-
-static inline unsigned int adc_upper_write_ptr_code(uint16_t prepost_bits)
-{
-	return (prepost_bits >> 14) & 0x3;
-}
-
-/* I2C addresses for 4020 */
-enum i2c_addresses {
-	RANGE_CAL_I2C_ADDR = 0x20,
-	CALDAC0_I2C_ADDR = 0xc,
-	CALDAC1_I2C_ADDR = 0xd,
-};
-
-enum range_cal_i2c_contents {
-	/*  bits that set what source the adc converter measures */
-	ADC_SRC_4020_MASK = 0x70,
-	/*  make bnc trig/ext clock threshold 0V instead of 2.5V */
-	BNC_TRIG_THRESHOLD_0V_BIT = 0x80,
-};
-
-static inline uint8_t adc_src_4020_bits(unsigned int source)
-{
-	return (source << 4) & ADC_SRC_4020_MASK;
-};
-
-static inline uint8_t attenuate_bit(unsigned int channel)
-{
-	/*  attenuate channel (+-5V input range) */
-	return 1 << (channel & 0x3);
-};
-
-/* analog input ranges for 64xx boards */
-static const struct comedi_lrange ai_ranges_64xx = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const uint8_t ai_range_code_64xx[8] = {
-	0x0, 0x1, 0x2, 0x3,	/* bipolar 10, 5, 2,5, 1.25 */
-	0x8, 0x9, 0xa, 0xb	/* unipolar 10, 5, 2.5, 1.25 */
-};
-
-/* analog input ranges for 64-Mx boards */
-static const struct comedi_lrange ai_ranges_64_mx = {
-	7, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const uint8_t ai_range_code_64_mx[7] = {
-	0x0, 0x1, 0x2, 0x3,	/* bipolar 5, 2.5, 1.25, 0.625 */
-	0x9, 0xa, 0xb		/* unipolar 5, 2.5, 1.25 */
-};
-
-/* analog input ranges for 60xx boards */
-static const struct comedi_lrange ai_ranges_60xx = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05)
-	}
-};
-
-static const uint8_t ai_range_code_60xx[4] = {
-	0x0, 0x1, 0x4, 0x7	/* bipolar 10, 5, 0.5, 0.05 */
-};
-
-/* analog input ranges for 6030, etc boards */
-static const struct comedi_lrange ai_ranges_6030 = {
-	14, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.2),
-		BIP_RANGE(0.1),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1),
-		UNI_RANGE(0.5),
-		UNI_RANGE(0.2),
-		UNI_RANGE(0.1)
-	}
-};
-
-static const uint8_t ai_range_code_6030[14] = {
-	0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, /* bip 10, 5, 2, 1, 0.5, 0.2, 0.1 */
-	0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf  /* uni 10, 5, 2, 1, 0.5, 0.2, 0.1 */
-};
-
-/* analog input ranges for 6052, etc boards */
-static const struct comedi_lrange ai_ranges_6052 = {
-	15, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.25),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.05),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1),
-		UNI_RANGE(0.5),
-		UNI_RANGE(0.2),
-		UNI_RANGE(0.1)
-	}
-};
-
-static const uint8_t ai_range_code_6052[15] = {
-	0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,	/* bipolar 10 ... 0.05 */
-	0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf	/* unipolar 10 ... 0.1 */
-};
-
-/* analog input ranges for 4020 board */
-static const struct comedi_lrange ai_ranges_4020 = {
-	2, {
-		BIP_RANGE(5),
-		BIP_RANGE(1)
-	}
-};
-
-/* analog output ranges */
-static const struct comedi_lrange ao_ranges_64xx = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-static const int ao_range_code_64xx[] = {
-	0x0,
-	0x1,
-	0x2,
-	0x3,
-};
-
-static const int ao_range_code_60xx[] = {
-	0x0,
-};
-
-static const struct comedi_lrange ao_ranges_6030 = {
-	2, {
-		BIP_RANGE(10),
-		UNI_RANGE(10)
-	}
-};
-
-static const int ao_range_code_6030[] = {
-	0x0,
-	0x2,
-};
-
-static const struct comedi_lrange ao_ranges_4020 = {
-	2, {
-		BIP_RANGE(5),
-		BIP_RANGE(10)
-	}
-};
-
-static const int ao_range_code_4020[] = {
-	0x1,
-	0x0,
-};
-
-enum register_layout {
-	LAYOUT_60XX,
-	LAYOUT_64XX,
-	LAYOUT_4020,
-};
-
-struct hw_fifo_info {
-	unsigned int num_segments;
-	unsigned int max_segment_length;
-	unsigned int sample_packing_ratio;
-	uint16_t fifo_size_reg_mask;
-};
-
-enum pcidas64_boardid {
-	BOARD_PCIDAS6402_16,
-	BOARD_PCIDAS6402_12,
-	BOARD_PCIDAS64_M1_16,
-	BOARD_PCIDAS64_M2_16,
-	BOARD_PCIDAS64_M3_16,
-	BOARD_PCIDAS6013,
-	BOARD_PCIDAS6014,
-	BOARD_PCIDAS6023,
-	BOARD_PCIDAS6025,
-	BOARD_PCIDAS6030,
-	BOARD_PCIDAS6031,
-	BOARD_PCIDAS6032,
-	BOARD_PCIDAS6033,
-	BOARD_PCIDAS6034,
-	BOARD_PCIDAS6035,
-	BOARD_PCIDAS6036,
-	BOARD_PCIDAS6040,
-	BOARD_PCIDAS6052,
-	BOARD_PCIDAS6070,
-	BOARD_PCIDAS6071,
-	BOARD_PCIDAS4020_12,
-	BOARD_PCIDAS6402_16_JR,
-	BOARD_PCIDAS64_M1_16_JR,
-	BOARD_PCIDAS64_M2_16_JR,
-	BOARD_PCIDAS64_M3_16_JR,
-	BOARD_PCIDAS64_M1_14,
-	BOARD_PCIDAS64_M2_14,
-	BOARD_PCIDAS64_M3_14,
-};
-
-struct pcidas64_board {
-	const char *name;
-	int ai_se_chans;	/*  number of ai inputs in single-ended mode */
-	int ai_bits;		/*  analog input resolution */
-	int ai_speed;		/*  fastest conversion period in ns */
-	const struct comedi_lrange *ai_range_table;
-	const uint8_t *ai_range_code;
-	int ao_nchan;		/*  number of analog out channels */
-	int ao_bits;		/*  analog output resolution */
-	int ao_scan_speed;	/*  analog output scan speed */
-	const struct comedi_lrange *ao_range_table;
-	const int *ao_range_code;
-	const struct hw_fifo_info *const ai_fifo;
-	/*  different board families have slightly different registers */
-	enum register_layout layout;
-	unsigned has_8255:1;
-};
-
-static const struct hw_fifo_info ai_fifo_4020 = {
-	.num_segments = 2,
-	.max_segment_length = 0x8000,
-	.sample_packing_ratio = 2,
-	.fifo_size_reg_mask = 0x7f,
-};
-
-static const struct hw_fifo_info ai_fifo_64xx = {
-	.num_segments = 4,
-	.max_segment_length = 0x800,
-	.sample_packing_ratio = 1,
-	.fifo_size_reg_mask = 0x3f,
-};
-
-static const struct hw_fifo_info ai_fifo_60xx = {
-	.num_segments = 4,
-	.max_segment_length = 0x800,
-	.sample_packing_ratio = 1,
-	.fifo_size_reg_mask = 0x7f,
-};
-
-/*
- * maximum number of dma transfers we will chain together into a ring
- * (and the maximum number of dma buffers we maintain)
- */
-#define MAX_AI_DMA_RING_COUNT (0x80000 / DMA_BUFFER_SIZE)
-#define MIN_AI_DMA_RING_COUNT (0x10000 / DMA_BUFFER_SIZE)
-#define AO_DMA_RING_COUNT (0x10000 / DMA_BUFFER_SIZE)
-static inline unsigned int ai_dma_ring_count(const struct pcidas64_board *board)
-{
-	if (board->layout == LAYOUT_4020)
-		return MAX_AI_DMA_RING_COUNT;
-
-	return MIN_AI_DMA_RING_COUNT;
-}
-
-static const int bytes_in_sample = 2;
-
-static const struct pcidas64_board pcidas64_boards[] = {
-	[BOARD_PCIDAS6402_16] = {
-		.name		= "pci-das6402/16",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64xx,
-		.ai_range_code	= ai_range_code_64xx,
-		.ao_range_table	= &ao_ranges_64xx,
-		.ao_range_code	= ao_range_code_64xx,
-		.ai_fifo	= &ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS6402_12] = {
-		.name		= "pci-das6402/12",	/*  XXX check */
-		.ai_se_chans	= 64,
-		.ai_bits	= 12,
-		.ai_speed	= 5000,
-		.ao_nchan	= 2,
-		.ao_bits	= 12,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64xx,
-		.ai_range_code	= ai_range_code_64xx,
-		.ao_range_table	= &ao_ranges_64xx,
-		.ao_range_code	= ao_range_code_64xx,
-		.ai_fifo	= &ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M1_16] = {
-		.name		= "pci-das64/m1/16",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 1000,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ao_range_table	= &ao_ranges_64xx,
-		.ao_range_code	= ao_range_code_64xx,
-		.ai_fifo	= &ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M2_16] = {
-		.name = "pci-das64/m2/16",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 500,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ao_range_table	= &ao_ranges_64xx,
-		.ao_range_code	= ao_range_code_64xx,
-		.ai_fifo	= &ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M3_16] = {
-		.name		= "pci-das64/m3/16",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 333,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ao_range_table	= &ao_ranges_64xx,
-		.ao_range_code	= ao_range_code_64xx,
-		.ai_fifo	= &ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS6013] = {
-		.name		= "pci-das6013",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 0,
-		.ao_bits	= 16,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_60xx,
-		.ai_range_code	= ai_range_code_60xx,
-		.ao_range_table	= &range_bipolar10,
-		.ao_range_code	= ao_range_code_60xx,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6014] = {
-		.name		= "pci-das6014",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 100000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_60xx,
-		.ai_range_code	= ai_range_code_60xx,
-		.ao_range_table	= &range_bipolar10,
-		.ao_range_code	= ao_range_code_60xx,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6023] = {
-		.name		= "pci-das6023",
-		.ai_se_chans	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 5000,
-		.ao_nchan	= 0,
-		.ao_scan_speed	= 100000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_60xx,
-		.ai_range_code	= ai_range_code_60xx,
-		.ao_range_table	= &range_bipolar10,
-		.ao_range_code	= ao_range_code_60xx,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS6025] = {
-		.name		= "pci-das6025",
-		.ai_se_chans	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 5000,
-		.ao_nchan	= 2,
-		.ao_bits	= 12,
-		.ao_scan_speed	= 100000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_60xx,
-		.ai_range_code	= ai_range_code_60xx,
-		.ao_range_table	= &range_bipolar10,
-		.ao_range_code	= ao_range_code_60xx,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS6030] = {
-		.name		= "pci-das6030",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 10000,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6030,
-		.ai_range_code	= ai_range_code_6030,
-		.ao_range_table	= &ao_ranges_6030,
-		.ao_range_code	= ao_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6031] = {
-		.name		= "pci-das6031",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 10000,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6030,
-		.ai_range_code	= ai_range_code_6030,
-		.ao_range_table	= &ao_ranges_6030,
-		.ao_range_code	= ao_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6032] = {
-		.name		= "pci-das6032",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 10000,
-		.ao_nchan	= 0,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6030,
-		.ai_range_code	= ai_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6033] = {
-		.name		= "pci-das6033",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 10000,
-		.ao_nchan	= 0,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6030,
-		.ai_range_code	= ai_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6034] = {
-		.name		= "pci-das6034",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 0,
-		.ao_scan_speed	= 0,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_60xx,
-		.ai_range_code	= ai_range_code_60xx,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6035] = {
-		.name		= "pci-das6035",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 2,
-		.ao_bits	= 12,
-		.ao_scan_speed	= 100000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_60xx,
-		.ai_range_code	= ai_range_code_60xx,
-		.ao_range_table	= &range_bipolar10,
-		.ao_range_code	= ao_range_code_60xx,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6036] = {
-		.name		= "pci-das6036",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 100000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_60xx,
-		.ai_range_code	= ai_range_code_60xx,
-		.ao_range_table	= &range_bipolar10,
-		.ao_range_code	= ao_range_code_60xx,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6040] = {
-		.name		= "pci-das6040",
-		.ai_se_chans	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 2000,
-		.ao_nchan	= 2,
-		.ao_bits	= 12,
-		.ao_scan_speed	= 1000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6052,
-		.ai_range_code	= ai_range_code_6052,
-		.ao_range_table	= &ao_ranges_6030,
-		.ao_range_code	= ao_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6052] = {
-		.name		= "pci-das6052",
-		.ai_se_chans	= 16,
-		.ai_bits	= 16,
-		.ai_speed	= 3333,
-		.ao_nchan	= 2,
-		.ao_bits	= 16,
-		.ao_scan_speed	= 3333,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6052,
-		.ai_range_code	= ai_range_code_6052,
-		.ao_range_table	= &ao_ranges_6030,
-		.ao_range_code	= ao_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6070] = {
-		.name		= "pci-das6070",
-		.ai_se_chans	= 16,
-		.ai_bits	= 12,
-		.ai_speed	= 800,
-		.ao_nchan	= 2,
-		.ao_bits	= 12,
-		.ao_scan_speed	= 1000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6052,
-		.ai_range_code	= ai_range_code_6052,
-		.ao_range_table	= &ao_ranges_6030,
-		.ao_range_code	= ao_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS6071] = {
-		.name		= "pci-das6071",
-		.ai_se_chans	= 64,
-		.ai_bits	= 12,
-		.ai_speed	= 800,
-		.ao_nchan	= 2,
-		.ao_bits	= 12,
-		.ao_scan_speed	= 1000,
-		.layout		= LAYOUT_60XX,
-		.ai_range_table	= &ai_ranges_6052,
-		.ai_range_code	= ai_range_code_6052,
-		.ao_range_table	= &ao_ranges_6030,
-		.ao_range_code	= ao_range_code_6030,
-		.ai_fifo	= &ai_fifo_60xx,
-		.has_8255	= 0,
-	},
-	[BOARD_PCIDAS4020_12] = {
-		.name		= "pci-das4020/12",
-		.ai_se_chans	= 4,
-		.ai_bits	= 12,
-		.ai_speed	= 50,
-		.ao_bits	= 12,
-		.ao_nchan	= 2,
-		.ao_scan_speed	= 0,	/*  no hardware pacing on ao */
-		.layout		= LAYOUT_4020,
-		.ai_range_table	= &ai_ranges_4020,
-		.ao_range_table	= &ao_ranges_4020,
-		.ao_range_code	= ao_range_code_4020,
-		.ai_fifo	= &ai_fifo_4020,
-		.has_8255	= 1,
-	},
-#if 0
-	/*
-	 * The device id for these boards is unknown
-	 */
-
-	[BOARD_PCIDAS6402_16_JR] = {
-		.name		= "pci-das6402/16/jr",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 5000,
-		.ao_nchan	= 0,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64xx,
-		.ai_range_code	= ai_range_code_64xx,
-		.ai_fifo	= ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M1_16_JR] = {
-		.name		= "pci-das64/m1/16/jr",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 1000,
-		.ao_nchan	= 0,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ai_fifo	= ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M2_16_JR] = {
-		.name = "pci-das64/m2/16/jr",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 500,
-		.ao_nchan	= 0,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ai_fifo	= ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M3_16_JR] = {
-		.name		= "pci-das64/m3/16/jr",
-		.ai_se_chans	= 64,
-		.ai_bits	= 16,
-		.ai_speed	= 333,
-		.ao_nchan	= 0,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ai_fifo	= ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M1_14] = {
-		.name		= "pci-das64/m1/14",
-		.ai_se_chans	= 64,
-		.ai_bits	= 14,
-		.ai_speed	= 1000,
-		.ao_nchan	= 2,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ai_fifo	= ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M2_14] = {
-		.name		= "pci-das64/m2/14",
-		.ai_se_chans	= 64,
-		.ai_bits	= 14,
-		.ai_speed	= 500,
-		.ao_nchan	= 2,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ai_fifo	= ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-	[BOARD_PCIDAS64_M3_14] = {
-		.name		= "pci-das64/m3/14",
-		.ai_se_chans	= 64,
-		.ai_bits	= 14,
-		.ai_speed	= 333,
-		.ao_nchan	= 2,
-		.ao_scan_speed	= 10000,
-		.layout		= LAYOUT_64XX,
-		.ai_range_table	= &ai_ranges_64_mx,
-		.ai_range_code	= ai_range_code_64_mx,
-		.ai_fifo	= ai_fifo_64xx,
-		.has_8255	= 1,
-	},
-#endif
-};
-
-static inline unsigned short se_diff_bit_6xxx(struct comedi_device *dev,
-					      int use_differential)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	if ((board->layout == LAYOUT_64XX && !use_differential) ||
-	    (board->layout == LAYOUT_60XX && use_differential))
-		return ADC_SE_DIFF_BIT;
-
-	return 0;
-}
-
-struct ext_clock_info {
-	/*  master clock divisor to use for scans with external master clock */
-	unsigned int divisor;
-	/*  chanspec for master clock input when used as scan begin src */
-	unsigned int chanspec;
-};
-
-/* this structure is for data unique to this hardware driver. */
-struct pcidas64_private {
-	/*  base addresses (physical) */
-	resource_size_t main_phys_iobase;
-	resource_size_t dio_counter_phys_iobase;
-	/*  base addresses (ioremapped) */
-	void __iomem *plx9080_iobase;
-	void __iomem *main_iobase;
-	/*  local address (used by dma controller) */
-	uint32_t local0_iobase;
-	uint32_t local1_iobase;
-	/*  dma buffers for analog input */
-	uint16_t *ai_buffer[MAX_AI_DMA_RING_COUNT];
-	/*  physical addresses of ai dma buffers */
-	dma_addr_t ai_buffer_bus_addr[MAX_AI_DMA_RING_COUNT];
-	/*  array of ai dma descriptors read by plx9080,
-	 *  allocated to get proper alignment */
-	struct plx_dma_desc *ai_dma_desc;
-	/*  physical address of ai dma descriptor array */
-	dma_addr_t ai_dma_desc_bus_addr;
-	/*  index of the ai dma descriptor/buffer
-	 *  that is currently being used */
-	unsigned int ai_dma_index;
-	/*  dma buffers for analog output */
-	uint16_t *ao_buffer[AO_DMA_RING_COUNT];
-	/*  physical addresses of ao dma buffers */
-	dma_addr_t ao_buffer_bus_addr[AO_DMA_RING_COUNT];
-	struct plx_dma_desc *ao_dma_desc;
-	dma_addr_t ao_dma_desc_bus_addr;
-	/*  keeps track of buffer where the next ao sample should go */
-	unsigned int ao_dma_index;
-	unsigned int hw_revision;	/*  stc chip hardware revision number */
-	/*  last bits sent to INTR_ENABLE_REG register */
-	unsigned int intr_enable_bits;
-	/*  last bits sent to ADC_CONTROL1_REG register */
-	uint16_t adc_control1_bits;
-	/*  last bits sent to FIFO_SIZE_REG register */
-	uint16_t fifo_size_bits;
-	/*  last bits sent to HW_CONFIG_REG register */
-	uint16_t hw_config_bits;
-	uint16_t dac_control1_bits;
-	/*  last bits written to plx9080 control register */
-	uint32_t plx_control_bits;
-	/*  last bits written to plx interrupt control and status register */
-	uint32_t plx_intcsr_bits;
-	/*  index of calibration source readable through ai ch0 */
-	int calibration_source;
-	/*  bits written to i2c calibration/range register */
-	uint8_t i2c_cal_range_bits;
-	/*  configure digital triggers to trigger on falling edge */
-	unsigned int ext_trig_falling;
-	short ai_cmd_running;
-	unsigned int ai_fifo_segment_length;
-	struct ext_clock_info ext_clock;
-	unsigned short ao_bounce_buffer[DAC_FIFO_SIZE];
-};
-
-static unsigned int ai_range_bits_6xxx(const struct comedi_device *dev,
-				       unsigned int range_index)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	return board->ai_range_code[range_index] << 8;
-}
-
-static unsigned int hw_revision(const struct comedi_device *dev,
-				uint16_t hw_status_bits)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	if (board->layout == LAYOUT_4020)
-		return (hw_status_bits >> 13) & 0x7;
-
-	return (hw_status_bits >> 12) & 0xf;
-}
-
-static void set_dac_range_bits(struct comedi_device *dev,
-			       uint16_t *bits, unsigned int channel,
-			       unsigned int range)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	unsigned int code = board->ao_range_code[range];
-
-	if (channel > 1)
-		dev_err(dev->class_dev, "bug! bad channel?\n");
-	if (code & ~0x3)
-		dev_err(dev->class_dev, "bug! bad range code?\n");
-
-	*bits &= ~(0x3 << (2 * channel));
-	*bits |= code << (2 * channel);
-};
-
-static inline int ao_cmd_is_supported(const struct pcidas64_board *board)
-{
-	return board->ao_nchan && board->layout != LAYOUT_4020;
-}
-
-static void abort_dma(struct comedi_device *dev, unsigned int channel)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned long flags;
-
-	/*  spinlock for plx dma control/status reg */
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	plx9080_abort_dma(devpriv->plx9080_iobase, channel);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-static void disable_plx_interrupts(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-
-	devpriv->plx_intcsr_bits = 0;
-	writel(devpriv->plx_intcsr_bits,
-	       devpriv->plx9080_iobase + PLX_INTRCS_REG);
-}
-
-static void disable_ai_interrupts(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->intr_enable_bits &=
-		~EN_ADC_INTR_SRC_BIT & ~EN_ADC_DONE_INTR_BIT &
-		~EN_ADC_ACTIVE_INTR_BIT & ~EN_ADC_STOP_INTR_BIT &
-		~EN_ADC_OVERRUN_BIT & ~ADC_INTR_SRC_MASK;
-	writew(devpriv->intr_enable_bits,
-	       devpriv->main_iobase + INTR_ENABLE_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-static void enable_ai_interrupts(struct comedi_device *dev,
-				 const struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	uint32_t bits;
-	unsigned long flags;
-
-	bits = EN_ADC_OVERRUN_BIT | EN_ADC_DONE_INTR_BIT |
-	       EN_ADC_ACTIVE_INTR_BIT | EN_ADC_STOP_INTR_BIT;
-	/*
-	 * Use pio transfer and interrupt on end of conversion
-	 * if CMDF_WAKE_EOS flag is set.
-	 */
-	if (cmd->flags & CMDF_WAKE_EOS) {
-		/*  4020 doesn't support pio transfers except for fifo dregs */
-		if (board->layout != LAYOUT_4020)
-			bits |= ADC_INTR_EOSCAN_BITS | EN_ADC_INTR_SRC_BIT;
-	}
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->intr_enable_bits |= bits;
-	writew(devpriv->intr_enable_bits,
-	       devpriv->main_iobase + INTR_ENABLE_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-/* initialize plx9080 chip */
-static void init_plx9080(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	uint32_t bits;
-	void __iomem *plx_iobase = devpriv->plx9080_iobase;
-
-	devpriv->plx_control_bits =
-		readl(devpriv->plx9080_iobase + PLX_CONTROL_REG);
-
-#ifdef __BIG_ENDIAN
-	bits = BIGEND_DMA0 | BIGEND_DMA1;
-#else
-	bits = 0;
-#endif
-	writel(bits, devpriv->plx9080_iobase + PLX_BIGEND_REG);
-
-	disable_plx_interrupts(dev);
-
-	abort_dma(dev, 0);
-	abort_dma(dev, 1);
-
-	/*  configure dma0 mode */
-	bits = 0;
-	/*  enable ready input, not sure if this is necessary */
-	bits |= PLX_DMA_EN_READYIN_BIT;
-	/*  enable bterm, not sure if this is necessary */
-	bits |= PLX_EN_BTERM_BIT;
-	/*  enable dma chaining */
-	bits |= PLX_EN_CHAIN_BIT;
-	/*  enable interrupt on dma done
-	 *  (probably don't need this, since chain never finishes) */
-	bits |= PLX_EN_DMA_DONE_INTR_BIT;
-	/*  don't increment local address during transfers
-	 *  (we are transferring from a fixed fifo register) */
-	bits |= PLX_LOCAL_ADDR_CONST_BIT;
-	/*  route dma interrupt to pci bus */
-	bits |= PLX_DMA_INTR_PCI_BIT;
-	/*  enable demand mode */
-	bits |= PLX_DEMAND_MODE_BIT;
-	/*  enable local burst mode */
-	bits |= PLX_DMA_LOCAL_BURST_EN_BIT;
-	/*  4020 uses 32 bit dma */
-	if (board->layout == LAYOUT_4020)
-		bits |= PLX_LOCAL_BUS_32_WIDE_BITS;
-	else		/*  localspace0 bus is 16 bits wide */
-		bits |= PLX_LOCAL_BUS_16_WIDE_BITS;
-	writel(bits, plx_iobase + PLX_DMA1_MODE_REG);
-	if (ao_cmd_is_supported(board))
-		writel(bits, plx_iobase + PLX_DMA0_MODE_REG);
-
-	/*  enable interrupts on plx 9080 */
-	devpriv->plx_intcsr_bits |=
-	    ICS_AERR | ICS_PERR | ICS_PIE | ICS_PLIE | ICS_PAIE | ICS_LIE |
-	    ICS_DMA0_E | ICS_DMA1_E;
-	writel(devpriv->plx_intcsr_bits,
-	       devpriv->plx9080_iobase + PLX_INTRCS_REG);
-}
-
-static void disable_ai_pacing(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned long flags;
-
-	disable_ai_interrupts(dev);
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->adc_control1_bits &= ~ADC_SW_GATE_BIT;
-	writew(devpriv->adc_control1_bits,
-	       devpriv->main_iobase + ADC_CONTROL1_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/* disable pacing, triggering, etc */
-	writew(ADC_DMA_DISABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT,
-	       devpriv->main_iobase + ADC_CONTROL0_REG);
-}
-
-static int set_ai_fifo_segment_length(struct comedi_device *dev,
-				      unsigned int num_entries)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	static const int increment_size = 0x100;
-	const struct hw_fifo_info *const fifo = board->ai_fifo;
-	unsigned int num_increments;
-	uint16_t bits;
-
-	if (num_entries < increment_size)
-		num_entries = increment_size;
-	if (num_entries > fifo->max_segment_length)
-		num_entries = fifo->max_segment_length;
-
-	/*  1 == 256 entries, 2 == 512 entries, etc */
-	num_increments = (num_entries + increment_size / 2) / increment_size;
-
-	bits = (~(num_increments - 1)) & fifo->fifo_size_reg_mask;
-	devpriv->fifo_size_bits &= ~fifo->fifo_size_reg_mask;
-	devpriv->fifo_size_bits |= bits;
-	writew(devpriv->fifo_size_bits,
-	       devpriv->main_iobase + FIFO_SIZE_REG);
-
-	devpriv->ai_fifo_segment_length = num_increments * increment_size;
-
-	return devpriv->ai_fifo_segment_length;
-}
-
-/*
- * adjusts the size of hardware fifo (which determines block size for dma xfers)
- */
-static int set_ai_fifo_size(struct comedi_device *dev, unsigned int num_samples)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	unsigned int num_fifo_entries;
-	int retval;
-	const struct hw_fifo_info *const fifo = board->ai_fifo;
-
-	num_fifo_entries = num_samples / fifo->sample_packing_ratio;
-
-	retval = set_ai_fifo_segment_length(dev,
-					    num_fifo_entries /
-					    fifo->num_segments);
-	if (retval < 0)
-		return retval;
-
-	num_samples = retval * fifo->num_segments * fifo->sample_packing_ratio;
-
-	return num_samples;
-}
-
-/* query length of fifo */
-static unsigned int ai_fifo_size(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-
-	return devpriv->ai_fifo_segment_length *
-	       board->ai_fifo->num_segments *
-	       board->ai_fifo->sample_packing_ratio;
-}
-
-static void init_stc_registers(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	uint16_t bits;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	/*
-	 * bit should be set for 6025,
-	 * although docs say boards with <= 16 chans should be cleared XXX
-	 */
-	if (1)
-		devpriv->adc_control1_bits |= ADC_QUEUE_CONFIG_BIT;
-	writew(devpriv->adc_control1_bits,
-	       devpriv->main_iobase + ADC_CONTROL1_REG);
-
-	/*  6402/16 manual says this register must be initialized to 0xff? */
-	writew(0xff, devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG);
-
-	bits = SLOW_DAC_BIT | DMA_CH_SELECT_BIT;
-	if (board->layout == LAYOUT_4020)
-		bits |= INTERNAL_CLOCK_4020_BITS;
-	devpriv->hw_config_bits |= bits;
-	writew(devpriv->hw_config_bits,
-	       devpriv->main_iobase + HW_CONFIG_REG);
-
-	writew(0, devpriv->main_iobase + DAQ_SYNC_REG);
-	writew(0, devpriv->main_iobase + CALIBRATION_REG);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/*  set fifos to maximum size */
-	devpriv->fifo_size_bits |= DAC_FIFO_BITS;
-	set_ai_fifo_segment_length(dev, board->ai_fifo->max_segment_length);
-
-	devpriv->dac_control1_bits = DAC_OUTPUT_ENABLE_BIT;
-	devpriv->intr_enable_bits =
-		/* EN_DAC_INTR_SRC_BIT | DAC_INTR_QEMPTY_BITS | */
-		EN_DAC_DONE_INTR_BIT | EN_DAC_UNDERRUN_BIT;
-	writew(devpriv->intr_enable_bits,
-	       devpriv->main_iobase + INTR_ENABLE_REG);
-
-	disable_ai_pacing(dev);
-};
-
-static int alloc_and_init_dma_members(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct pcidas64_private *devpriv = dev->private;
-	int i;
-
-	/*  allocate pci dma buffers */
-	for (i = 0; i < ai_dma_ring_count(board); i++) {
-		devpriv->ai_buffer[i] =
-			pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE,
-					     &devpriv->ai_buffer_bus_addr[i]);
-		if (!devpriv->ai_buffer[i])
-			return -ENOMEM;
-	}
-	for (i = 0; i < AO_DMA_RING_COUNT; i++) {
-		if (ao_cmd_is_supported(board)) {
-			devpriv->ao_buffer[i] =
-				pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE,
-						     &devpriv->
-						      ao_buffer_bus_addr[i]);
-			if (!devpriv->ao_buffer[i])
-				return -ENOMEM;
-		}
-	}
-	/*  allocate dma descriptors */
-	devpriv->ai_dma_desc =
-		pci_alloc_consistent(pcidev, sizeof(struct plx_dma_desc) *
-				     ai_dma_ring_count(board),
-				     &devpriv->ai_dma_desc_bus_addr);
-	if (!devpriv->ai_dma_desc)
-		return -ENOMEM;
-
-	if (ao_cmd_is_supported(board)) {
-		devpriv->ao_dma_desc =
-			pci_alloc_consistent(pcidev,
-					     sizeof(struct plx_dma_desc) *
-					     AO_DMA_RING_COUNT,
-					     &devpriv->ao_dma_desc_bus_addr);
-		if (!devpriv->ao_dma_desc)
-			return -ENOMEM;
-	}
-	/*  initialize dma descriptors */
-	for (i = 0; i < ai_dma_ring_count(board); i++) {
-		devpriv->ai_dma_desc[i].pci_start_addr =
-			cpu_to_le32(devpriv->ai_buffer_bus_addr[i]);
-		if (board->layout == LAYOUT_4020)
-			devpriv->ai_dma_desc[i].local_start_addr =
-				cpu_to_le32(devpriv->local1_iobase +
-					    ADC_FIFO_REG);
-		else
-			devpriv->ai_dma_desc[i].local_start_addr =
-				cpu_to_le32(devpriv->local0_iobase +
-					    ADC_FIFO_REG);
-		devpriv->ai_dma_desc[i].transfer_size = cpu_to_le32(0);
-		devpriv->ai_dma_desc[i].next =
-			cpu_to_le32((devpriv->ai_dma_desc_bus_addr +
-				     ((i + 1) % ai_dma_ring_count(board)) *
-				     sizeof(devpriv->ai_dma_desc[0])) |
-				    PLX_DESC_IN_PCI_BIT | PLX_INTR_TERM_COUNT |
-				    PLX_XFER_LOCAL_TO_PCI);
-	}
-	if (ao_cmd_is_supported(board)) {
-		for (i = 0; i < AO_DMA_RING_COUNT; i++) {
-			devpriv->ao_dma_desc[i].pci_start_addr =
-				cpu_to_le32(devpriv->ao_buffer_bus_addr[i]);
-			devpriv->ao_dma_desc[i].local_start_addr =
-				cpu_to_le32(devpriv->local0_iobase +
-					    DAC_FIFO_REG);
-			devpriv->ao_dma_desc[i].transfer_size = cpu_to_le32(0);
-			devpriv->ao_dma_desc[i].next =
-				cpu_to_le32((devpriv->ao_dma_desc_bus_addr +
-					     ((i + 1) % (AO_DMA_RING_COUNT)) *
-					     sizeof(devpriv->ao_dma_desc[0])) |
-					    PLX_DESC_IN_PCI_BIT |
-					    PLX_INTR_TERM_COUNT);
-		}
-	}
-	return 0;
-}
-
-static void cb_pcidas64_free_dma(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct pcidas64_private *devpriv = dev->private;
-	int i;
-
-	if (!devpriv)
-		return;
-
-	/* free pci dma buffers */
-	for (i = 0; i < ai_dma_ring_count(board); i++) {
-		if (devpriv->ai_buffer[i])
-			pci_free_consistent(pcidev,
-					    DMA_BUFFER_SIZE,
-					    devpriv->ai_buffer[i],
-					    devpriv->ai_buffer_bus_addr[i]);
-	}
-	for (i = 0; i < AO_DMA_RING_COUNT; i++) {
-		if (devpriv->ao_buffer[i])
-			pci_free_consistent(pcidev,
-					    DMA_BUFFER_SIZE,
-					    devpriv->ao_buffer[i],
-					    devpriv->ao_buffer_bus_addr[i]);
-	}
-	/* free dma descriptors */
-	if (devpriv->ai_dma_desc)
-		pci_free_consistent(pcidev,
-				    sizeof(struct plx_dma_desc) *
-				    ai_dma_ring_count(board),
-				    devpriv->ai_dma_desc,
-				    devpriv->ai_dma_desc_bus_addr);
-	if (devpriv->ao_dma_desc)
-		pci_free_consistent(pcidev,
-				    sizeof(struct plx_dma_desc) *
-				    AO_DMA_RING_COUNT,
-				    devpriv->ao_dma_desc,
-				    devpriv->ao_dma_desc_bus_addr);
-}
-
-static inline void warn_external_queue(struct comedi_device *dev)
-{
-	dev_err(dev->class_dev,
-		"AO command and AI external channel queue cannot be used simultaneously\n");
-	dev_err(dev->class_dev,
-		"Use internal AI channel queue (channels must be consecutive and use same range/aref)\n");
-}
-
-/*
- * their i2c requires a huge delay on setting clock or data high for some reason
- */
-static const int i2c_high_udelay = 1000;
-static const int i2c_low_udelay = 10;
-
-/* set i2c data line high or low */
-static void i2c_set_sda(struct comedi_device *dev, int state)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	static const int data_bit = CTL_EE_W;
-	void __iomem *plx_control_addr = devpriv->plx9080_iobase +
-					 PLX_CONTROL_REG;
-
-	if (state) {
-		/*  set data line high */
-		devpriv->plx_control_bits &= ~data_bit;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		udelay(i2c_high_udelay);
-	} else {		/*  set data line low */
-
-		devpriv->plx_control_bits |= data_bit;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		udelay(i2c_low_udelay);
-	}
-}
-
-/* set i2c clock line high or low */
-static void i2c_set_scl(struct comedi_device *dev, int state)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	static const int clock_bit = CTL_USERO;
-	void __iomem *plx_control_addr = devpriv->plx9080_iobase +
-					 PLX_CONTROL_REG;
-
-	if (state) {
-		/*  set clock line high */
-		devpriv->plx_control_bits &= ~clock_bit;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		udelay(i2c_high_udelay);
-	} else {		/*  set clock line low */
-
-		devpriv->plx_control_bits |= clock_bit;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		udelay(i2c_low_udelay);
-	}
-}
-
-static void i2c_write_byte(struct comedi_device *dev, uint8_t byte)
-{
-	uint8_t bit;
-	unsigned int num_bits = 8;
-
-	for (bit = 1 << (num_bits - 1); bit; bit >>= 1) {
-		i2c_set_scl(dev, 0);
-		if ((byte & bit))
-			i2c_set_sda(dev, 1);
-		else
-			i2c_set_sda(dev, 0);
-		i2c_set_scl(dev, 1);
-	}
-}
-
-/* we can't really read the lines, so fake it */
-static int i2c_read_ack(struct comedi_device *dev)
-{
-	i2c_set_scl(dev, 0);
-	i2c_set_sda(dev, 1);
-	i2c_set_scl(dev, 1);
-
-	return 0;		/*  return fake acknowledge bit */
-}
-
-/* send start bit */
-static void i2c_start(struct comedi_device *dev)
-{
-	i2c_set_scl(dev, 1);
-	i2c_set_sda(dev, 1);
-	i2c_set_sda(dev, 0);
-}
-
-/* send stop bit */
-static void i2c_stop(struct comedi_device *dev)
-{
-	i2c_set_scl(dev, 0);
-	i2c_set_sda(dev, 0);
-	i2c_set_scl(dev, 1);
-	i2c_set_sda(dev, 1);
-}
-
-static void i2c_write(struct comedi_device *dev, unsigned int address,
-		      const uint8_t *data, unsigned int length)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int i;
-	uint8_t bitstream;
-	static const int read_bit = 0x1;
-
-	/*
-	 * XXX need mutex to prevent simultaneous attempts to access
-	 * eeprom and i2c bus
-	 */
-
-	/*  make sure we dont send anything to eeprom */
-	devpriv->plx_control_bits &= ~CTL_EE_CS;
-
-	i2c_stop(dev);
-	i2c_start(dev);
-
-	/*  send address and write bit */
-	bitstream = (address << 1) & ~read_bit;
-	i2c_write_byte(dev, bitstream);
-
-	/*  get acknowledge */
-	if (i2c_read_ack(dev) != 0) {
-		dev_err(dev->class_dev, "failed: no acknowledge\n");
-		i2c_stop(dev);
-		return;
-	}
-	/*  write data bytes */
-	for (i = 0; i < length; i++) {
-		i2c_write_byte(dev, data[i]);
-		if (i2c_read_ack(dev) != 0) {
-			dev_err(dev->class_dev, "failed: no acknowledge\n");
-			i2c_stop(dev);
-			return;
-		}
-	}
-	i2c_stop(dev);
-}
-
-static int cb_pcidas64_ai_eoc(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned long context)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int status;
-
-	status = readw(devpriv->main_iobase + HW_STATUS_REG);
-	if (board->layout == LAYOUT_4020) {
-		status = readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG);
-		if (status)
-			return 0;
-	} else {
-		if (pipe_full_bits(status))
-			return 0;
-	}
-	return -EBUSY;
-}
-
-static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int bits = 0, n;
-	unsigned int channel, range, aref;
-	unsigned long flags;
-	int ret;
-
-	channel = CR_CHAN(insn->chanspec);
-	range = CR_RANGE(insn->chanspec);
-	aref = CR_AREF(insn->chanspec);
-
-	/*  disable card's analog input interrupt sources and pacing */
-	/*  4020 generates dac done interrupts even though they are disabled */
-	disable_ai_pacing(dev);
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	if (insn->chanspec & CR_ALT_FILTER)
-		devpriv->adc_control1_bits |= ADC_DITHER_BIT;
-	else
-		devpriv->adc_control1_bits &= ~ADC_DITHER_BIT;
-	writew(devpriv->adc_control1_bits,
-	       devpriv->main_iobase + ADC_CONTROL1_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	if (board->layout != LAYOUT_4020) {
-		/*  use internal queue */
-		devpriv->hw_config_bits &= ~EXT_QUEUE_BIT;
-		writew(devpriv->hw_config_bits,
-		       devpriv->main_iobase + HW_CONFIG_REG);
-
-		/*  ALT_SOURCE is internal calibration reference */
-		if (insn->chanspec & CR_ALT_SOURCE) {
-			unsigned int cal_en_bit;
-
-			if (board->layout == LAYOUT_60XX)
-				cal_en_bit = CAL_EN_60XX_BIT;
-			else
-				cal_en_bit = CAL_EN_64XX_BIT;
-			/*
-			 * select internal reference source to connect
-			 * to channel 0
-			 */
-			writew(cal_en_bit |
-			       adc_src_bits(devpriv->calibration_source),
-			       devpriv->main_iobase + CALIBRATION_REG);
-		} else {
-			/*
-			 * make sure internal calibration source
-			 * is turned off
-			 */
-			writew(0, devpriv->main_iobase + CALIBRATION_REG);
-		}
-		/*  load internal queue */
-		bits = 0;
-		/*  set gain */
-		bits |= ai_range_bits_6xxx(dev, CR_RANGE(insn->chanspec));
-		/*  set single-ended / differential */
-		bits |= se_diff_bit_6xxx(dev, aref == AREF_DIFF);
-		if (aref == AREF_COMMON)
-			bits |= ADC_COMMON_BIT;
-		bits |= adc_chan_bits(channel);
-		/*  set stop channel */
-		writew(adc_chan_bits(channel),
-		       devpriv->main_iobase + ADC_QUEUE_HIGH_REG);
-		/*  set start channel, and rest of settings */
-		writew(bits, devpriv->main_iobase + ADC_QUEUE_LOAD_REG);
-	} else {
-		uint8_t old_cal_range_bits = devpriv->i2c_cal_range_bits;
-
-		devpriv->i2c_cal_range_bits &= ~ADC_SRC_4020_MASK;
-		if (insn->chanspec & CR_ALT_SOURCE) {
-			devpriv->i2c_cal_range_bits |=
-				adc_src_4020_bits(devpriv->calibration_source);
-		} else {	/* select BNC inputs */
-			devpriv->i2c_cal_range_bits |= adc_src_4020_bits(4);
-		}
-		/*  select range */
-		if (range == 0)
-			devpriv->i2c_cal_range_bits |= attenuate_bit(channel);
-		else
-			devpriv->i2c_cal_range_bits &= ~attenuate_bit(channel);
-		/*
-		 * update calibration/range i2c register only if necessary,
-		 * as it is very slow
-		 */
-		if (old_cal_range_bits != devpriv->i2c_cal_range_bits) {
-			uint8_t i2c_data = devpriv->i2c_cal_range_bits;
-
-			i2c_write(dev, RANGE_CAL_I2C_ADDR, &i2c_data,
-				  sizeof(i2c_data));
-		}
-
-		/*
-		 * 4020 manual asks that sample interval register to be set
-		 * before writing to convert register.
-		 * Using somewhat arbitrary setting of 4 master clock ticks
-		 * = 0.1 usec
-		 */
-		writew(0, devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG);
-		writew(2, devpriv->main_iobase + ADC_SAMPLE_INTERVAL_LOWER_REG);
-	}
-
-	for (n = 0; n < insn->n; n++) {
-		/*  clear adc buffer (inside loop for 4020 sake) */
-		writew(0, devpriv->main_iobase + ADC_BUFFER_CLEAR_REG);
-
-		/* trigger conversion, bits sent only matter for 4020 */
-		writew(adc_convert_chan_4020_bits(CR_CHAN(insn->chanspec)),
-		       devpriv->main_iobase + ADC_CONVERT_REG);
-
-		/*  wait for data */
-		ret = comedi_timeout(dev, s, insn, cb_pcidas64_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		if (board->layout == LAYOUT_4020)
-			data[n] = readl(dev->mmio + ADC_FIFO_REG) & 0xffff;
-		else
-			data[n] = readw(devpriv->main_iobase + PIPE1_READ_REG);
-	}
-
-	return n;
-}
-
-static int ai_config_calibration_source(struct comedi_device *dev,
-					unsigned int *data)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int source = data[1];
-	int num_calibration_sources;
-
-	if (board->layout == LAYOUT_60XX)
-		num_calibration_sources = 16;
-	else
-		num_calibration_sources = 8;
-	if (source >= num_calibration_sources) {
-		dev_dbg(dev->class_dev, "invalid calibration source: %i\n",
-			source);
-		return -EINVAL;
-	}
-
-	devpriv->calibration_source = source;
-
-	return 2;
-}
-
-static int ai_config_block_size(struct comedi_device *dev, unsigned int *data)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	int fifo_size;
-	const struct hw_fifo_info *const fifo = board->ai_fifo;
-	unsigned int block_size, requested_block_size;
-	int retval;
-
-	requested_block_size = data[1];
-
-	if (requested_block_size) {
-		fifo_size = requested_block_size * fifo->num_segments /
-			    bytes_in_sample;
-
-		retval = set_ai_fifo_size(dev, fifo_size);
-		if (retval < 0)
-			return retval;
-	}
-
-	block_size = ai_fifo_size(dev) / fifo->num_segments * bytes_in_sample;
-
-	data[1] = block_size;
-
-	return 2;
-}
-
-static int ai_config_master_clock_4020(struct comedi_device *dev,
-				       unsigned int *data)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int divisor = data[4];
-	int retval = 0;
-
-	if (divisor < 2) {
-		divisor = 2;
-		retval = -EAGAIN;
-	}
-
-	switch (data[1]) {
-	case COMEDI_EV_SCAN_BEGIN:
-		devpriv->ext_clock.divisor = divisor;
-		devpriv->ext_clock.chanspec = data[2];
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	data[4] = divisor;
-
-	return retval ? retval : 5;
-}
-
-/* XXX could add support for 60xx series */
-static int ai_config_master_clock(struct comedi_device *dev, unsigned int *data)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	switch (board->layout) {
-	case LAYOUT_4020:
-		return ai_config_master_clock_4020(dev, data);
-	default:
-		return -EINVAL;
-	}
-
-	return -EINVAL;
-}
-
-static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
-{
-	int id = data[0];
-
-	switch (id) {
-	case INSN_CONFIG_ALT_SOURCE:
-		return ai_config_calibration_source(dev, data);
-	case INSN_CONFIG_BLOCK_SIZE:
-		return ai_config_block_size(dev, data);
-	case INSN_CONFIG_TIMER_1:
-		return ai_config_master_clock(dev, data);
-	default:
-		return -EINVAL;
-	}
-	return -EINVAL;
-}
-
-/*
- * Gets nearest achievable timing given master clock speed, does not
- * take into account possible minimum/maximum divisor values.  Used
- * by other timing checking functions.
- */
-static unsigned int get_divisor(unsigned int ns, unsigned int flags)
-{
-	unsigned int divisor;
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_UP:
-		divisor = (ns + TIMER_BASE - 1) / TIMER_BASE;
-		break;
-	case CMDF_ROUND_DOWN:
-		divisor = ns / TIMER_BASE;
-		break;
-	case CMDF_ROUND_NEAREST:
-	default:
-		divisor = (ns + TIMER_BASE / 2) / TIMER_BASE;
-		break;
-	}
-	return divisor;
-}
-
-/*
- * utility function that rounds desired timing to an achievable time, and
- * sets cmd members appropriately.
- * adc paces conversions from master clock by dividing by (x + 3) where x is
- * 24 bit number
- */
-static void check_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	unsigned long long convert_divisor = 0;
-	unsigned int scan_divisor;
-	static const int min_convert_divisor = 3;
-	static const int max_convert_divisor =
-		max_counter_value + min_convert_divisor;
-	static const int min_scan_divisor_4020 = 2;
-	unsigned long long max_scan_divisor, min_scan_divisor;
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		if (board->layout == LAYOUT_4020) {
-			cmd->convert_arg = 0;
-		} else {
-			convert_divisor = get_divisor(cmd->convert_arg,
-						      cmd->flags);
-			if (convert_divisor > max_convert_divisor)
-				convert_divisor = max_convert_divisor;
-			if (convert_divisor < min_convert_divisor)
-				convert_divisor = min_convert_divisor;
-			cmd->convert_arg = convert_divisor * TIMER_BASE;
-		}
-	} else if (cmd->convert_src == TRIG_NOW) {
-		cmd->convert_arg = 0;
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		scan_divisor = get_divisor(cmd->scan_begin_arg, cmd->flags);
-		if (cmd->convert_src == TRIG_TIMER) {
-			min_scan_divisor = convert_divisor * cmd->chanlist_len;
-			max_scan_divisor =
-				(convert_divisor * cmd->chanlist_len - 1) +
-				max_counter_value;
-		} else {
-			min_scan_divisor = min_scan_divisor_4020;
-			max_scan_divisor = max_counter_value + min_scan_divisor;
-		}
-		if (scan_divisor > max_scan_divisor)
-			scan_divisor = max_scan_divisor;
-		if (scan_divisor < min_scan_divisor)
-			scan_divisor = min_scan_divisor;
-		cmd->scan_begin_arg = scan_divisor * TIMER_BASE;
-	}
-}
-
-static int cb_pcidas64_ai_check_chanlist(struct comedi_device *dev,
-					 struct comedi_subdevice *s,
-					 struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-
-		if (aref != aref0) {
-			dev_dbg(dev->class_dev,
-				"all elements in chanlist must use the same analog reference\n");
-			return -EINVAL;
-		}
-	}
-
-	if (board->layout == LAYOUT_4020) {
-		unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-
-		for (i = 1; i < cmd->chanlist_len; i++) {
-			unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-			if (chan != (chan0 + i)) {
-				dev_dbg(dev->class_dev,
-					"chanlist must use consecutive channels\n");
-				return -EINVAL;
-			}
-		}
-		if (cmd->chanlist_len == 3) {
-			dev_dbg(dev->class_dev,
-				"chanlist cannot be 3 channels long, use 1, 2, or 4 channels\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
-		      struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	int err = 0;
-	unsigned int tmp_arg, tmp_arg2;
-	unsigned int triggers;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-
-	triggers = TRIG_TIMER;
-	if (board->layout == LAYOUT_4020)
-		triggers |= TRIG_OTHER;
-	else
-		triggers |= TRIG_FOLLOW;
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, triggers);
-
-	triggers = TRIG_TIMER;
-	if (board->layout == LAYOUT_4020)
-		triggers |= TRIG_NOW;
-	else
-		triggers |= TRIG_EXT;
-	err |= comedi_check_trigger_src(&cmd->convert_src, triggers);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src,
-					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		/*
-		 * start_arg is the CR_CHAN | CR_INVERT of the
-		 * external trigger.
-		 */
-		break;
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		if (board->layout == LAYOUT_4020) {
-			err |= comedi_check_trigger_arg_is(&cmd->convert_arg,
-							   0);
-		} else {
-			err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-							    board->ai_speed);
-			/*
-			 * if scans are timed faster than conversion rate
-			 * allows
-			 */
-			if (cmd->scan_begin_src == TRIG_TIMER) {
-				err |= comedi_check_trigger_arg_min(
-						&cmd->scan_begin_arg,
-						cmd->convert_arg *
-						cmd->chanlist_len);
-			}
-		}
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	switch (cmd->stop_src) {
-	case TRIG_EXT:
-		break;
-	case TRIG_COUNT:
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-		break;
-	case TRIG_NONE:
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-		break;
-	default:
-		break;
-	}
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		tmp_arg = cmd->convert_arg;
-		tmp_arg2 = cmd->scan_begin_arg;
-		check_adc_timing(dev, cmd);
-		if (tmp_arg != cmd->convert_arg)
-			err++;
-		if (tmp_arg2 != cmd->scan_begin_arg)
-			err++;
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= cb_pcidas64_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int use_hw_sample_counter(struct comedi_cmd *cmd)
-{
-/* disable for now until I work out a race */
-	return 0;
-
-	if (cmd->stop_src == TRIG_COUNT && cmd->stop_arg <= max_counter_value)
-		return 1;
-
-	return 0;
-}
-
-static void setup_sample_counters(struct comedi_device *dev,
-				  struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-
-	/*  load hardware conversion counter */
-	if (use_hw_sample_counter(cmd)) {
-		writew(cmd->stop_arg & 0xffff,
-		       devpriv->main_iobase + ADC_COUNT_LOWER_REG);
-		writew((cmd->stop_arg >> 16) & 0xff,
-		       devpriv->main_iobase + ADC_COUNT_UPPER_REG);
-	} else {
-		writew(1, devpriv->main_iobase + ADC_COUNT_LOWER_REG);
-	}
-}
-
-static inline unsigned int dma_transfer_size(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int num_samples;
-
-	num_samples = devpriv->ai_fifo_segment_length *
-		      board->ai_fifo->sample_packing_ratio;
-	if (num_samples > DMA_BUFFER_SIZE / sizeof(uint16_t))
-		num_samples = DMA_BUFFER_SIZE / sizeof(uint16_t);
-
-	return num_samples;
-}
-
-static uint32_t ai_convert_counter_6xxx(const struct comedi_device *dev,
-					const struct comedi_cmd *cmd)
-{
-	/*  supposed to load counter with desired divisor minus 3 */
-	return cmd->convert_arg / TIMER_BASE - 3;
-}
-
-static uint32_t ai_scan_counter_6xxx(struct comedi_device *dev,
-				     struct comedi_cmd *cmd)
-{
-	uint32_t count;
-
-	/*  figure out how long we need to delay at end of scan */
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		count = (cmd->scan_begin_arg -
-			 (cmd->convert_arg * (cmd->chanlist_len - 1))) /
-			TIMER_BASE;
-		break;
-	case TRIG_FOLLOW:
-		count = cmd->convert_arg / TIMER_BASE;
-		break;
-	default:
-		return 0;
-	}
-	return count - 3;
-}
-
-static uint32_t ai_convert_counter_4020(struct comedi_device *dev,
-					struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int divisor;
-
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		divisor = cmd->scan_begin_arg / TIMER_BASE;
-		break;
-	case TRIG_OTHER:
-		divisor = devpriv->ext_clock.divisor;
-		break;
-	default:		/*  should never happen */
-		dev_err(dev->class_dev, "bug! failed to set ai pacing!\n");
-		divisor = 1000;
-		break;
-	}
-
-	/*  supposed to load counter with desired divisor minus 2 for 4020 */
-	return divisor - 2;
-}
-
-static void select_master_clock_4020(struct comedi_device *dev,
-				     const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-
-	/*  select internal/external master clock */
-	devpriv->hw_config_bits &= ~MASTER_CLOCK_4020_MASK;
-	if (cmd->scan_begin_src == TRIG_OTHER) {
-		int chanspec = devpriv->ext_clock.chanspec;
-
-		if (CR_CHAN(chanspec))
-			devpriv->hw_config_bits |= BNC_CLOCK_4020_BITS;
-		else
-			devpriv->hw_config_bits |= EXT_CLOCK_4020_BITS;
-	} else {
-		devpriv->hw_config_bits |= INTERNAL_CLOCK_4020_BITS;
-	}
-	writew(devpriv->hw_config_bits,
-	       devpriv->main_iobase + HW_CONFIG_REG);
-}
-
-static void select_master_clock(struct comedi_device *dev,
-				const struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	switch (board->layout) {
-	case LAYOUT_4020:
-		select_master_clock_4020(dev, cmd);
-		break;
-	default:
-		break;
-	}
-}
-
-static inline void dma_start_sync(struct comedi_device *dev,
-				  unsigned int channel)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned long flags;
-
-	/*  spinlock for plx dma control/status reg */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	if (channel)
-		writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT |
-		       PLX_CLEAR_DMA_INTR_BIT,
-		       devpriv->plx9080_iobase + PLX_DMA1_CS_REG);
-	else
-		writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT |
-		       PLX_CLEAR_DMA_INTR_BIT,
-		       devpriv->plx9080_iobase + PLX_DMA0_CS_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-static void set_ai_pacing(struct comedi_device *dev, struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	uint32_t convert_counter = 0, scan_counter = 0;
-
-	check_adc_timing(dev, cmd);
-
-	select_master_clock(dev, cmd);
-
-	if (board->layout == LAYOUT_4020) {
-		convert_counter = ai_convert_counter_4020(dev, cmd);
-	} else {
-		convert_counter = ai_convert_counter_6xxx(dev, cmd);
-		scan_counter = ai_scan_counter_6xxx(dev, cmd);
-	}
-
-	/*  load lower 16 bits of convert interval */
-	writew(convert_counter & 0xffff,
-	       devpriv->main_iobase + ADC_SAMPLE_INTERVAL_LOWER_REG);
-	/*  load upper 8 bits of convert interval */
-	writew((convert_counter >> 16) & 0xff,
-	       devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG);
-	/*  load lower 16 bits of scan delay */
-	writew(scan_counter & 0xffff,
-	       devpriv->main_iobase + ADC_DELAY_INTERVAL_LOWER_REG);
-	/*  load upper 8 bits of scan delay */
-	writew((scan_counter >> 16) & 0xff,
-	       devpriv->main_iobase + ADC_DELAY_INTERVAL_UPPER_REG);
-}
-
-static int use_internal_queue_6xxx(const struct comedi_cmd *cmd)
-{
-	int i;
-
-	for (i = 0; i + 1 < cmd->chanlist_len; i++) {
-		if (CR_CHAN(cmd->chanlist[i + 1]) !=
-		    CR_CHAN(cmd->chanlist[i]) + 1)
-			return 0;
-		if (CR_RANGE(cmd->chanlist[i + 1]) !=
-		    CR_RANGE(cmd->chanlist[i]))
-			return 0;
-		if (CR_AREF(cmd->chanlist[i + 1]) != CR_AREF(cmd->chanlist[i]))
-			return 0;
-	}
-	return 1;
-}
-
-static int setup_channel_queue(struct comedi_device *dev,
-			       const struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned short bits;
-	int i;
-
-	if (board->layout != LAYOUT_4020) {
-		if (use_internal_queue_6xxx(cmd)) {
-			devpriv->hw_config_bits &= ~EXT_QUEUE_BIT;
-			writew(devpriv->hw_config_bits,
-			       devpriv->main_iobase + HW_CONFIG_REG);
-			bits = 0;
-			/*  set channel */
-			bits |= adc_chan_bits(CR_CHAN(cmd->chanlist[0]));
-			/*  set gain */
-			bits |= ai_range_bits_6xxx(dev,
-						   CR_RANGE(cmd->chanlist[0]));
-			/*  set single-ended / differential */
-			bits |= se_diff_bit_6xxx(dev,
-						 CR_AREF(cmd->chanlist[0]) ==
-						 AREF_DIFF);
-			if (CR_AREF(cmd->chanlist[0]) == AREF_COMMON)
-				bits |= ADC_COMMON_BIT;
-			/*  set stop channel */
-			writew(adc_chan_bits
-			       (CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1])),
-			       devpriv->main_iobase + ADC_QUEUE_HIGH_REG);
-			/*  set start channel, and rest of settings */
-			writew(bits,
-			       devpriv->main_iobase + ADC_QUEUE_LOAD_REG);
-		} else {
-			/*  use external queue */
-			if (dev->write_subdev && dev->write_subdev->busy) {
-				warn_external_queue(dev);
-				return -EBUSY;
-			}
-			devpriv->hw_config_bits |= EXT_QUEUE_BIT;
-			writew(devpriv->hw_config_bits,
-			       devpriv->main_iobase + HW_CONFIG_REG);
-			/*  clear DAC buffer to prevent weird interactions */
-			writew(0,
-			       devpriv->main_iobase + DAC_BUFFER_CLEAR_REG);
-			/*  clear queue pointer */
-			writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG);
-			/*  load external queue */
-			for (i = 0; i < cmd->chanlist_len; i++) {
-				bits = 0;
-				/*  set channel */
-				bits |= adc_chan_bits(CR_CHAN(cmd->
-							      chanlist[i]));
-				/*  set gain */
-				bits |= ai_range_bits_6xxx(dev,
-							   CR_RANGE(cmd->
-								    chanlist
-								    [i]));
-				/*  set single-ended / differential */
-				bits |= se_diff_bit_6xxx(dev,
-							 CR_AREF(cmd->
-								 chanlist[i]) ==
-							 AREF_DIFF);
-				if (CR_AREF(cmd->chanlist[i]) == AREF_COMMON)
-					bits |= ADC_COMMON_BIT;
-				/*  mark end of queue */
-				if (i == cmd->chanlist_len - 1)
-					bits |= QUEUE_EOSCAN_BIT |
-						QUEUE_EOSEQ_BIT;
-				writew(bits,
-				       devpriv->main_iobase +
-				       ADC_QUEUE_FIFO_REG);
-			}
-			/*
-			 * doing a queue clear is not specified in board docs,
-			 * but required for reliable operation
-			 */
-			writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG);
-			/*  prime queue holding register */
-			writew(0, devpriv->main_iobase + ADC_QUEUE_LOAD_REG);
-		}
-	} else {
-		unsigned short old_cal_range_bits = devpriv->i2c_cal_range_bits;
-
-		devpriv->i2c_cal_range_bits &= ~ADC_SRC_4020_MASK;
-		/* select BNC inputs */
-		devpriv->i2c_cal_range_bits |= adc_src_4020_bits(4);
-		/*  select ranges */
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			unsigned int channel = CR_CHAN(cmd->chanlist[i]);
-			unsigned int range = CR_RANGE(cmd->chanlist[i]);
-
-			if (range == 0)
-				devpriv->i2c_cal_range_bits |=
-					attenuate_bit(channel);
-			else
-				devpriv->i2c_cal_range_bits &=
-					~attenuate_bit(channel);
-		}
-		/*
-		 * update calibration/range i2c register only if necessary,
-		 * as it is very slow
-		 */
-		if (old_cal_range_bits != devpriv->i2c_cal_range_bits) {
-			uint8_t i2c_data = devpriv->i2c_cal_range_bits;
-
-			i2c_write(dev, RANGE_CAL_I2C_ADDR, &i2c_data,
-				  sizeof(i2c_data));
-		}
-	}
-	return 0;
-}
-
-static inline void load_first_dma_descriptor(struct comedi_device *dev,
-					     unsigned int dma_channel,
-					     unsigned int descriptor_bits)
-{
-	struct pcidas64_private *devpriv = dev->private;
-
-	/*
-	 * The transfer size, pci address, and local address registers
-	 * are supposedly unused during chained dma,
-	 * but I have found that left over values from last operation
-	 * occasionally cause problems with transfer of first dma
-	 * block.  Initializing them to zero seems to fix the problem.
-	 */
-	if (dma_channel) {
-		writel(0,
-		       devpriv->plx9080_iobase + PLX_DMA1_TRANSFER_SIZE_REG);
-		writel(0, devpriv->plx9080_iobase + PLX_DMA1_PCI_ADDRESS_REG);
-		writel(0,
-		       devpriv->plx9080_iobase + PLX_DMA1_LOCAL_ADDRESS_REG);
-		writel(descriptor_bits,
-		       devpriv->plx9080_iobase + PLX_DMA1_DESCRIPTOR_REG);
-	} else {
-		writel(0,
-		       devpriv->plx9080_iobase + PLX_DMA0_TRANSFER_SIZE_REG);
-		writel(0, devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG);
-		writel(0,
-		       devpriv->plx9080_iobase + PLX_DMA0_LOCAL_ADDRESS_REG);
-		writel(descriptor_bits,
-		       devpriv->plx9080_iobase + PLX_DMA0_DESCRIPTOR_REG);
-	}
-}
-
-static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	uint32_t bits;
-	unsigned int i;
-	unsigned long flags;
-	int retval;
-
-	disable_ai_pacing(dev);
-	abort_dma(dev, 1);
-
-	retval = setup_channel_queue(dev, cmd);
-	if (retval < 0)
-		return retval;
-
-	/*  make sure internal calibration source is turned off */
-	writew(0, devpriv->main_iobase + CALIBRATION_REG);
-
-	set_ai_pacing(dev, cmd);
-
-	setup_sample_counters(dev, cmd);
-
-	enable_ai_interrupts(dev, cmd);
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	/* set mode, allow conversions through software gate */
-	devpriv->adc_control1_bits |= ADC_SW_GATE_BIT;
-	devpriv->adc_control1_bits &= ~ADC_DITHER_BIT;
-	if (board->layout != LAYOUT_4020) {
-		devpriv->adc_control1_bits &= ~ADC_MODE_MASK;
-		if (cmd->convert_src == TRIG_EXT)
-			/*  good old mode 13 */
-			devpriv->adc_control1_bits |= adc_mode_bits(13);
-		else
-			/*  mode 8.  What else could you need? */
-			devpriv->adc_control1_bits |= adc_mode_bits(8);
-	} else {
-		devpriv->adc_control1_bits &= ~CHANNEL_MODE_4020_MASK;
-		if (cmd->chanlist_len == 4)
-			devpriv->adc_control1_bits |= FOUR_CHANNEL_4020_BITS;
-		else if (cmd->chanlist_len == 2)
-			devpriv->adc_control1_bits |= TWO_CHANNEL_4020_BITS;
-		devpriv->adc_control1_bits &= ~ADC_LO_CHANNEL_4020_MASK;
-		devpriv->adc_control1_bits |=
-			adc_lo_chan_4020_bits(CR_CHAN(cmd->chanlist[0]));
-		devpriv->adc_control1_bits &= ~ADC_HI_CHANNEL_4020_MASK;
-		devpriv->adc_control1_bits |=
-			adc_hi_chan_4020_bits(CR_CHAN(cmd->chanlist
-						      [cmd->chanlist_len - 1]));
-	}
-	writew(devpriv->adc_control1_bits,
-	       devpriv->main_iobase + ADC_CONTROL1_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/*  clear adc buffer */
-	writew(0, devpriv->main_iobase + ADC_BUFFER_CLEAR_REG);
-
-	if ((cmd->flags & CMDF_WAKE_EOS) == 0 ||
-	    board->layout == LAYOUT_4020) {
-		devpriv->ai_dma_index = 0;
-
-		/*  set dma transfer size */
-		for (i = 0; i < ai_dma_ring_count(board); i++)
-			devpriv->ai_dma_desc[i].transfer_size =
-				cpu_to_le32(dma_transfer_size(dev) *
-					    sizeof(uint16_t));
-
-		/*  give location of first dma descriptor */
-		load_first_dma_descriptor(dev, 1,
-					  devpriv->ai_dma_desc_bus_addr |
-					  PLX_DESC_IN_PCI_BIT |
-					  PLX_INTR_TERM_COUNT |
-					  PLX_XFER_LOCAL_TO_PCI);
-
-		dma_start_sync(dev, 1);
-	}
-
-	if (board->layout == LAYOUT_4020) {
-		/* set source for external triggers */
-		bits = 0;
-		if (cmd->start_src == TRIG_EXT && CR_CHAN(cmd->start_arg))
-			bits |= EXT_START_TRIG_BNC_BIT;
-		if (cmd->stop_src == TRIG_EXT && CR_CHAN(cmd->stop_arg))
-			bits |= EXT_STOP_TRIG_BNC_BIT;
-		writew(bits, devpriv->main_iobase + DAQ_ATRIG_LOW_4020_REG);
-	}
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	/* enable pacing, triggering, etc */
-	bits = ADC_ENABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT;
-	if (cmd->flags & CMDF_WAKE_EOS)
-		bits |= ADC_DMA_DISABLE_BIT;
-	/*  set start trigger */
-	if (cmd->start_src == TRIG_EXT) {
-		bits |= ADC_START_TRIG_EXT_BITS;
-		if (cmd->start_arg & CR_INVERT)
-			bits |= ADC_START_TRIG_FALLING_BIT;
-	} else if (cmd->start_src == TRIG_NOW) {
-		bits |= ADC_START_TRIG_SOFT_BITS;
-	}
-	if (use_hw_sample_counter(cmd))
-		bits |= ADC_SAMPLE_COUNTER_EN_BIT;
-	writew(bits, devpriv->main_iobase + ADC_CONTROL0_REG);
-
-	devpriv->ai_cmd_running = 1;
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/*  start acquisition */
-	if (cmd->start_src == TRIG_NOW)
-		writew(0, devpriv->main_iobase + ADC_START_REG);
-
-	return 0;
-}
-
-/* read num_samples from 16 bit wide ai fifo */
-static void pio_drain_ai_fifo_16(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int i;
-	uint16_t prepost_bits;
-	int read_segment, read_index, write_segment, write_index;
-	int num_samples;
-
-	do {
-		/*  get least significant 15 bits */
-		read_index = readw(devpriv->main_iobase + ADC_READ_PNTR_REG) &
-			     0x7fff;
-		write_index = readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG) &
-			      0x7fff;
-		/*
-		 * Get most significant bits (grey code).
-		 * Different boards use different code so use a scheme
-		 * that doesn't depend on encoding.  This read must
-		 * occur after reading least significant 15 bits to avoid race
-		 * with fifo switching to next segment.
-		 */
-		prepost_bits = readw(devpriv->main_iobase + PREPOST_REG);
-
-		/*
-		 * if read and write pointers are not on the same fifo segment,
-		 * read to the end of the read segment
-		 */
-		read_segment = adc_upper_read_ptr_code(prepost_bits);
-		write_segment = adc_upper_write_ptr_code(prepost_bits);
-
-		if (read_segment != write_segment)
-			num_samples =
-				devpriv->ai_fifo_segment_length - read_index;
-		else
-			num_samples = write_index - read_index;
-		if (num_samples < 0) {
-			dev_err(dev->class_dev,
-				"cb_pcidas64: bug! num_samples < 0\n");
-			break;
-		}
-
-		num_samples = comedi_nsamples_left(s, num_samples);
-		if (num_samples == 0)
-			break;
-
-		for (i = 0; i < num_samples; i++) {
-			unsigned short val;
-
-			val = readw(devpriv->main_iobase + ADC_FIFO_REG);
-			comedi_buf_write_samples(s, &val, 1);
-		}
-
-	} while (read_segment != write_segment);
-}
-
-/*
- * Read from 32 bit wide ai fifo of 4020 - deal with insane grey coding of
- * pointers.  The pci-4020 hardware only supports dma transfers (it only
- * supports the use of pio for draining the last remaining points from the
- * fifo when a data acquisition operation has completed).
- */
-static void pio_drain_ai_fifo_32(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int nsamples;
-	unsigned int i;
-	uint32_t fifo_data;
-	int write_code =
-		readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG) & 0x7fff;
-	int read_code =
-		readw(devpriv->main_iobase + ADC_READ_PNTR_REG) & 0x7fff;
-
-	nsamples = comedi_nsamples_left(s, 100000);
-	for (i = 0; read_code != write_code && i < nsamples;) {
-		unsigned short val;
-
-		fifo_data = readl(dev->mmio + ADC_FIFO_REG);
-		val = fifo_data & 0xffff;
-		comedi_buf_write_samples(s, &val, 1);
-		i++;
-		if (i < nsamples) {
-			val = (fifo_data >> 16) & 0xffff;
-			comedi_buf_write_samples(s, &val, 1);
-			i++;
-		}
-		read_code = readw(devpriv->main_iobase + ADC_READ_PNTR_REG) &
-			    0x7fff;
-	}
-}
-
-/* empty fifo */
-static void pio_drain_ai_fifo(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	if (board->layout == LAYOUT_4020)
-		pio_drain_ai_fifo_32(dev);
-	else
-		pio_drain_ai_fifo_16(dev);
-}
-
-static void drain_dma_buffers(struct comedi_device *dev, unsigned int channel)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	uint32_t next_transfer_addr;
-	int j;
-	int num_samples = 0;
-	void __iomem *pci_addr_reg;
-
-	if (channel)
-		pci_addr_reg =
-		    devpriv->plx9080_iobase + PLX_DMA1_PCI_ADDRESS_REG;
-	else
-		pci_addr_reg =
-		    devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG;
-
-	/*  loop until we have read all the full buffers */
-	for (j = 0, next_transfer_addr = readl(pci_addr_reg);
-	     (next_transfer_addr <
-	      devpriv->ai_buffer_bus_addr[devpriv->ai_dma_index] ||
-	      next_transfer_addr >=
-	      devpriv->ai_buffer_bus_addr[devpriv->ai_dma_index] +
-	      DMA_BUFFER_SIZE) && j < ai_dma_ring_count(board); j++) {
-		/*  transfer data from dma buffer to comedi buffer */
-		num_samples = comedi_nsamples_left(s, dma_transfer_size(dev));
-		comedi_buf_write_samples(s,
-				devpriv->ai_buffer[devpriv->ai_dma_index],
-				num_samples);
-		devpriv->ai_dma_index = (devpriv->ai_dma_index + 1) %
-					ai_dma_ring_count(board);
-	}
-	/*
-	 * XXX check for dma ring buffer overrun
-	 * (use end-of-chain bit to mark last unused buffer)
-	 */
-}
-
-static void handle_ai_interrupt(struct comedi_device *dev,
-				unsigned short status,
-				unsigned int plx_status)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	uint8_t dma1_status;
-	unsigned long flags;
-
-	/*  check for fifo overrun */
-	if (status & ADC_OVERRUN_BIT) {
-		dev_err(dev->class_dev, "fifo overrun\n");
-		async->events |= COMEDI_CB_ERROR;
-	}
-	/*  spin lock makes sure no one else changes plx dma control reg */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	dma1_status = readb(devpriv->plx9080_iobase + PLX_DMA1_CS_REG);
-	if (plx_status & ICS_DMA1_A) {	/*  dma chan 1 interrupt */
-		writeb((dma1_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT,
-		       devpriv->plx9080_iobase + PLX_DMA1_CS_REG);
-
-		if (dma1_status & PLX_DMA_EN_BIT)
-			drain_dma_buffers(dev, 1);
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/*  drain fifo with pio */
-	if ((status & ADC_DONE_BIT) ||
-	    ((cmd->flags & CMDF_WAKE_EOS) &&
-	     (status & ADC_INTR_PENDING_BIT) &&
-	     (board->layout != LAYOUT_4020))) {
-		spin_lock_irqsave(&dev->spinlock, flags);
-		if (devpriv->ai_cmd_running) {
-			spin_unlock_irqrestore(&dev->spinlock, flags);
-			pio_drain_ai_fifo(dev);
-		} else {
-			spin_unlock_irqrestore(&dev->spinlock, flags);
-		}
-	}
-	/*  if we are have all the data, then quit */
-	if ((cmd->stop_src == TRIG_COUNT &&
-	     async->scans_done >= cmd->stop_arg) ||
-	    (cmd->stop_src == TRIG_EXT && (status & ADC_STOP_BIT)))
-		async->events |= COMEDI_CB_EOA;
-
-	comedi_handle_events(dev, s);
-}
-
-static inline unsigned int prev_ao_dma_index(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int buffer_index;
-
-	if (devpriv->ao_dma_index == 0)
-		buffer_index = AO_DMA_RING_COUNT - 1;
-	else
-		buffer_index = devpriv->ao_dma_index - 1;
-	return buffer_index;
-}
-
-static int last_ao_dma_load_completed(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int buffer_index;
-	unsigned int transfer_address;
-	unsigned short dma_status;
-
-	buffer_index = prev_ao_dma_index(dev);
-	dma_status = readb(devpriv->plx9080_iobase + PLX_DMA0_CS_REG);
-	if ((dma_status & PLX_DMA_DONE_BIT) == 0)
-		return 0;
-
-	transfer_address =
-		readl(devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG);
-	if (transfer_address != devpriv->ao_buffer_bus_addr[buffer_index])
-		return 0;
-
-	return 1;
-}
-
-static inline int ao_dma_needs_restart(struct comedi_device *dev,
-				       unsigned short dma_status)
-{
-	if ((dma_status & PLX_DMA_DONE_BIT) == 0 ||
-	    (dma_status & PLX_DMA_EN_BIT) == 0)
-		return 0;
-	if (last_ao_dma_load_completed(dev))
-		return 0;
-
-	return 1;
-}
-
-static void restart_ao_dma(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int dma_desc_bits;
-
-	dma_desc_bits =
-		readl(devpriv->plx9080_iobase + PLX_DMA0_DESCRIPTOR_REG);
-	dma_desc_bits &= ~PLX_END_OF_CHAIN_BIT;
-	load_first_dma_descriptor(dev, 0, dma_desc_bits);
-
-	dma_start_sync(dev, 0);
-}
-
-static unsigned int cb_pcidas64_ao_fill_buffer(struct comedi_device *dev,
-					       struct comedi_subdevice *s,
-					       unsigned short *dest,
-					       unsigned int max_bytes)
-{
-	unsigned int nsamples = comedi_bytes_to_samples(s, max_bytes);
-	unsigned int actual_bytes;
-
-	nsamples = comedi_nsamples_left(s, nsamples);
-	actual_bytes = comedi_buf_read_samples(s, dest, nsamples);
-
-	return comedi_bytes_to_samples(s, actual_bytes);
-}
-
-static unsigned int load_ao_dma_buffer(struct comedi_device *dev,
-				       const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	unsigned int buffer_index = devpriv->ao_dma_index;
-	unsigned int prev_buffer_index = prev_ao_dma_index(dev);
-	unsigned int nsamples;
-	unsigned int nbytes;
-	unsigned int next_bits;
-
-	nsamples = cb_pcidas64_ao_fill_buffer(dev, s,
-					      devpriv->ao_buffer[buffer_index],
-					      DMA_BUFFER_SIZE);
-	if (nsamples == 0)
-		return 0;
-
-	nbytes = comedi_samples_to_bytes(s, nsamples);
-	devpriv->ao_dma_desc[buffer_index].transfer_size = cpu_to_le32(nbytes);
-	/* set end of chain bit so we catch underruns */
-	next_bits = le32_to_cpu(devpriv->ao_dma_desc[buffer_index].next);
-	next_bits |= PLX_END_OF_CHAIN_BIT;
-	devpriv->ao_dma_desc[buffer_index].next = cpu_to_le32(next_bits);
-	/*
-	 * clear end of chain bit on previous buffer now that we have set it
-	 * for the last buffer
-	 */
-	next_bits = le32_to_cpu(devpriv->ao_dma_desc[prev_buffer_index].next);
-	next_bits &= ~PLX_END_OF_CHAIN_BIT;
-	devpriv->ao_dma_desc[prev_buffer_index].next = cpu_to_le32(next_bits);
-
-	devpriv->ao_dma_index = (buffer_index + 1) % AO_DMA_RING_COUNT;
-
-	return nbytes;
-}
-
-static void load_ao_dma(struct comedi_device *dev, const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int num_bytes;
-	unsigned int next_transfer_addr;
-	void __iomem *pci_addr_reg =
-		devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG;
-	unsigned int buffer_index;
-
-	do {
-		buffer_index = devpriv->ao_dma_index;
-		/* don't overwrite data that hasn't been transferred yet */
-		next_transfer_addr = readl(pci_addr_reg);
-		if (next_transfer_addr >=
-		    devpriv->ao_buffer_bus_addr[buffer_index] &&
-		    next_transfer_addr <
-		    devpriv->ao_buffer_bus_addr[buffer_index] +
-		    DMA_BUFFER_SIZE)
-			return;
-		num_bytes = load_ao_dma_buffer(dev, cmd);
-	} while (num_bytes >= DMA_BUFFER_SIZE);
-}
-
-static void handle_ao_interrupt(struct comedi_device *dev,
-				unsigned short status, unsigned int plx_status)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	struct comedi_async *async;
-	struct comedi_cmd *cmd;
-	uint8_t dma0_status;
-	unsigned long flags;
-
-	/* board might not support ao, in which case write_subdev is NULL */
-	if (!s)
-		return;
-	async = s->async;
-	cmd = &async->cmd;
-
-	/*  spin lock makes sure no one else changes plx dma control reg */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	dma0_status = readb(devpriv->plx9080_iobase + PLX_DMA0_CS_REG);
-	if (plx_status & ICS_DMA0_A) {	/*  dma chan 0 interrupt */
-		if ((dma0_status & PLX_DMA_EN_BIT) &&
-		    !(dma0_status & PLX_DMA_DONE_BIT))
-			writeb(PLX_DMA_EN_BIT | PLX_CLEAR_DMA_INTR_BIT,
-			       devpriv->plx9080_iobase + PLX_DMA0_CS_REG);
-		else
-			writeb(PLX_CLEAR_DMA_INTR_BIT,
-			       devpriv->plx9080_iobase + PLX_DMA0_CS_REG);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		if (dma0_status & PLX_DMA_EN_BIT) {
-			load_ao_dma(dev, cmd);
-			/* try to recover from dma end-of-chain event */
-			if (ao_dma_needs_restart(dev, dma0_status))
-				restart_ao_dma(dev);
-		}
-	} else {
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-	}
-
-	if ((status & DAC_DONE_BIT)) {
-		if ((cmd->stop_src == TRIG_COUNT &&
-		     async->scans_done >= cmd->stop_arg) ||
-		    last_ao_dma_load_completed(dev))
-			async->events |= COMEDI_CB_EOA;
-		else
-			async->events |= COMEDI_CB_ERROR;
-	}
-	comedi_handle_events(dev, s);
-}
-
-static irqreturn_t handle_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned short status;
-	uint32_t plx_status;
-	uint32_t plx_bits;
-
-	plx_status = readl(devpriv->plx9080_iobase + PLX_INTRCS_REG);
-	status = readw(devpriv->main_iobase + HW_STATUS_REG);
-
-	/*
-	 * an interrupt before all the postconfig stuff gets done could
-	 * cause a NULL dereference if we continue through the
-	 * interrupt handler
-	 */
-	if (!dev->attached)
-		return IRQ_HANDLED;
-
-	handle_ai_interrupt(dev, status, plx_status);
-	handle_ao_interrupt(dev, status, plx_status);
-
-	/*  clear possible plx9080 interrupt sources */
-	if (plx_status & ICS_LDIA) {	/*  clear local doorbell interrupt */
-		plx_bits = readl(devpriv->plx9080_iobase + PLX_DBR_OUT_REG);
-		writel(plx_bits, devpriv->plx9080_iobase + PLX_DBR_OUT_REG);
-	}
-
-	return IRQ_HANDLED;
-}
-
-static int ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	if (devpriv->ai_cmd_running == 0) {
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		return 0;
-	}
-	devpriv->ai_cmd_running = 0;
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	disable_ai_pacing(dev);
-
-	abort_dma(dev, 1);
-
-	return 0;
-}
-
-static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	int chan = CR_CHAN(insn->chanspec);
-	int range = CR_RANGE(insn->chanspec);
-
-	/*  do some initializing */
-	writew(0, devpriv->main_iobase + DAC_CONTROL0_REG);
-
-	/*  set range */
-	set_dac_range_bits(dev, &devpriv->dac_control1_bits, chan, range);
-	writew(devpriv->dac_control1_bits,
-	       devpriv->main_iobase + DAC_CONTROL1_REG);
-
-	/*  write to channel */
-	if (board->layout == LAYOUT_4020) {
-		writew(data[0] & 0xff,
-		       devpriv->main_iobase + dac_lsb_4020_reg(chan));
-		writew((data[0] >> 8) & 0xf,
-		       devpriv->main_iobase + dac_msb_4020_reg(chan));
-	} else {
-		writew(data[0], devpriv->main_iobase + dac_convert_reg(chan));
-	}
-
-	/*  remember output value */
-	s->readback[chan] = data[0];
-
-	return 1;
-}
-
-static void set_dac_control0_reg(struct comedi_device *dev,
-				 const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int bits = DAC_ENABLE_BIT | WAVEFORM_GATE_LEVEL_BIT |
-			    WAVEFORM_GATE_ENABLE_BIT | WAVEFORM_GATE_SELECT_BIT;
-
-	if (cmd->start_src == TRIG_EXT) {
-		bits |= WAVEFORM_TRIG_EXT_BITS;
-		if (cmd->start_arg & CR_INVERT)
-			bits |= WAVEFORM_TRIG_FALLING_BIT;
-	} else {
-		bits |= WAVEFORM_TRIG_SOFT_BITS;
-	}
-	if (cmd->scan_begin_src == TRIG_EXT) {
-		bits |= DAC_EXT_UPDATE_ENABLE_BIT;
-		if (cmd->scan_begin_arg & CR_INVERT)
-			bits |= DAC_EXT_UPDATE_FALLING_BIT;
-	}
-	writew(bits, devpriv->main_iobase + DAC_CONTROL0_REG);
-}
-
-static void set_dac_control1_reg(struct comedi_device *dev,
-				 const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		int channel, range;
-
-		channel = CR_CHAN(cmd->chanlist[i]);
-		range = CR_RANGE(cmd->chanlist[i]);
-		set_dac_range_bits(dev, &devpriv->dac_control1_bits, channel,
-				   range);
-	}
-	devpriv->dac_control1_bits |= DAC_SW_GATE_BIT;
-	writew(devpriv->dac_control1_bits,
-	       devpriv->main_iobase + DAC_CONTROL1_REG);
-}
-
-static void set_dac_select_reg(struct comedi_device *dev,
-			       const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	uint16_t bits;
-	unsigned int first_channel, last_channel;
-
-	first_channel = CR_CHAN(cmd->chanlist[0]);
-	last_channel = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]);
-	if (last_channel < first_channel)
-		dev_err(dev->class_dev,
-			"bug! last ao channel < first ao channel\n");
-
-	bits = (first_channel & 0x7) | (last_channel & 0x7) << 3;
-
-	writew(bits, devpriv->main_iobase + DAC_SELECT_REG);
-}
-
-static unsigned int get_ao_divisor(unsigned int ns, unsigned int flags)
-{
-	return get_divisor(ns, flags) - 2;
-}
-
-static void set_dac_interval_regs(struct comedi_device *dev,
-				  const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	unsigned int divisor;
-
-	if (cmd->scan_begin_src != TRIG_TIMER)
-		return;
-
-	divisor = get_ao_divisor(cmd->scan_begin_arg, cmd->flags);
-	if (divisor > max_counter_value) {
-		dev_err(dev->class_dev, "bug! ao divisor too big\n");
-		divisor = max_counter_value;
-	}
-	writew(divisor & 0xffff,
-	       devpriv->main_iobase + DAC_SAMPLE_INTERVAL_LOWER_REG);
-	writew((divisor >> 16) & 0xff,
-	       devpriv->main_iobase + DAC_SAMPLE_INTERVAL_UPPER_REG);
-}
-
-static int prep_ao_dma(struct comedi_device *dev, const struct comedi_cmd *cmd)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	unsigned int nsamples;
-	unsigned int nbytes;
-	int i;
-
-	/*
-	 * clear queue pointer too, since external queue has
-	 * weird interactions with ao fifo
-	 */
-	writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG);
-	writew(0, devpriv->main_iobase + DAC_BUFFER_CLEAR_REG);
-
-	nsamples = cb_pcidas64_ao_fill_buffer(dev, s,
-					      devpriv->ao_bounce_buffer,
-					      DAC_FIFO_SIZE);
-	if (nsamples == 0)
-		return -1;
-
-	for (i = 0; i < nsamples; i++) {
-		writew(devpriv->ao_bounce_buffer[i],
-		       devpriv->main_iobase + DAC_FIFO_REG);
-	}
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg)
-		return 0;
-
-	nbytes = load_ao_dma_buffer(dev, cmd);
-	if (nbytes == 0)
-		return -1;
-	load_ao_dma(dev, cmd);
-
-	dma_start_sync(dev, 0);
-
-	return 0;
-}
-
-static inline int external_ai_queue_in_use(struct comedi_device *dev,
-					   struct comedi_subdevice *s,
-					   struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	if (s->busy)
-		return 0;
-	if (board->layout == LAYOUT_4020)
-		return 0;
-	else if (use_internal_queue_6xxx(cmd))
-		return 0;
-	return 1;
-}
-
-static int ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s,
-		      unsigned int trig_num)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int retval;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	retval = prep_ao_dma(dev, cmd);
-	if (retval < 0)
-		return -EPIPE;
-
-	set_dac_control0_reg(dev, cmd);
-
-	if (cmd->start_src == TRIG_INT)
-		writew(0, devpriv->main_iobase + DAC_START_REG);
-
-	s->async->inttrig = NULL;
-
-	return 0;
-}
-
-static int ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (external_ai_queue_in_use(dev, s, cmd)) {
-		warn_external_queue(dev);
-		return -EBUSY;
-	}
-	/* disable analog output system during setup */
-	writew(0x0, devpriv->main_iobase + DAC_CONTROL0_REG);
-
-	devpriv->ao_dma_index = 0;
-
-	set_dac_select_reg(dev, cmd);
-	set_dac_interval_regs(dev, cmd);
-	load_first_dma_descriptor(dev, 0, devpriv->ao_dma_desc_bus_addr |
-				  PLX_DESC_IN_PCI_BIT | PLX_INTR_TERM_COUNT);
-
-	set_dac_control1_reg(dev, cmd);
-	s->async->inttrig = ao_inttrig;
-
-	return 0;
-}
-
-static int cb_pcidas64_ao_check_chanlist(struct comedi_device *dev,
-					 struct comedi_subdevice *s,
-					 struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if (chan != (chan0 + i)) {
-			dev_dbg(dev->class_dev,
-				"chanlist must use consecutive channels\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
-		      struct comedi_cmd *cmd)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	int err = 0;
-	unsigned int tmp_arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER)
-		err |= -EINVAL;
-	if (cmd->stop_src != TRIG_COUNT &&
-	    cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    board->ao_scan_speed);
-		if (get_ao_divisor(cmd->scan_begin_arg, cmd->flags) >
-		    max_counter_value) {
-			cmd->scan_begin_arg = (max_counter_value + 2) *
-					      TIMER_BASE;
-			err |= -EINVAL;
-		}
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		tmp_arg = cmd->scan_begin_arg;
-		cmd->scan_begin_arg = get_divisor(cmd->scan_begin_arg,
-						  cmd->flags) * TIMER_BASE;
-		if (tmp_arg != cmd->scan_begin_arg)
-			err++;
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= cb_pcidas64_ao_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcidas64_private *devpriv = dev->private;
-
-	writew(0x0, devpriv->main_iobase + DAC_CONTROL0_REG);
-	abort_dma(dev, 0);
-	return 0;
-}
-
-static int dio_callback_4020(struct comedi_device *dev,
-			     int dir, int port, int data, unsigned long iobase)
-{
-	struct pcidas64_private *devpriv = dev->private;
-
-	if (dir) {
-		writew(data, devpriv->main_iobase + iobase + 2 * port);
-		return 0;
-	}
-	return readw(devpriv->main_iobase + iobase + 2 * port);
-}
-
-static int di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned int bits;
-
-	bits = readb(dev->mmio + DI_REG);
-	bits &= 0xf;
-	data[1] = bits;
-	data[0] = 0;
-
-	return insn->n;
-}
-
-static int do_wbits(struct comedi_device *dev,
-		    struct comedi_subdevice *s,
-		    struct comedi_insn *insn,
-		    unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		writeb(s->state, dev->mmio + DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int dio_60xx_config_insn(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	writeb(s->io_bits, dev->mmio + DIO_DIRECTION_60XX_REG);
-
-	return insn->n;
-}
-
-static int dio_60xx_wbits(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		writeb(s->state, dev->mmio + DIO_DATA_60XX_REG);
-
-	data[1] = readb(dev->mmio + DIO_DATA_60XX_REG);
-
-	return insn->n;
-}
-
-/*
- * pci-6025 8800 caldac:
- * address 0 == dac channel 0 offset
- * address 1 == dac channel 0 gain
- * address 2 == dac channel 1 offset
- * address 3 == dac channel 1 gain
- * address 4 == fine adc offset
- * address 5 == coarse adc offset
- * address 6 == coarse adc gain
- * address 7 == fine adc gain
- */
-/*
- * pci-6402/16 uses all 8 channels for dac:
- * address 0 == dac channel 0 fine gain
- * address 1 == dac channel 0 coarse gain
- * address 2 == dac channel 0 coarse offset
- * address 3 == dac channel 1 coarse offset
- * address 4 == dac channel 1 fine gain
- * address 5 == dac channel 1 coarse gain
- * address 6 == dac channel 0 fine offset
- * address 7 == dac channel 1 fine offset
- */
-
-static int caldac_8800_write(struct comedi_device *dev, unsigned int address,
-			     uint8_t value)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	static const int num_caldac_channels = 8;
-	static const int bitstream_length = 11;
-	unsigned int bitstream = ((address & 0x7) << 8) | value;
-	unsigned int bit, register_bits;
-	static const int caldac_8800_udelay = 1;
-
-	if (address >= num_caldac_channels) {
-		dev_err(dev->class_dev, "illegal caldac channel\n");
-		return -1;
-	}
-	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
-		register_bits = 0;
-		if (bitstream & bit)
-			register_bits |= SERIAL_DATA_IN_BIT;
-		udelay(caldac_8800_udelay);
-		writew(register_bits, devpriv->main_iobase + CALIBRATION_REG);
-		register_bits |= SERIAL_CLOCK_BIT;
-		udelay(caldac_8800_udelay);
-		writew(register_bits, devpriv->main_iobase + CALIBRATION_REG);
-	}
-	udelay(caldac_8800_udelay);
-	writew(SELECT_8800_BIT, devpriv->main_iobase + CALIBRATION_REG);
-	udelay(caldac_8800_udelay);
-	writew(0, devpriv->main_iobase + CALIBRATION_REG);
-	udelay(caldac_8800_udelay);
-	return 0;
-}
-
-/* 4020 caldacs */
-static int caldac_i2c_write(struct comedi_device *dev,
-			    unsigned int caldac_channel, unsigned int value)
-{
-	uint8_t serial_bytes[3];
-	uint8_t i2c_addr;
-	enum pointer_bits {
-		/*  manual has gain and offset bits switched */
-		OFFSET_0_2 = 0x1,
-		GAIN_0_2 = 0x2,
-		OFFSET_1_3 = 0x4,
-		GAIN_1_3 = 0x8,
-	};
-	enum data_bits {
-		NOT_CLEAR_REGISTERS = 0x20,
-	};
-
-	switch (caldac_channel) {
-	case 0:		/*  chan 0 offset */
-		i2c_addr = CALDAC0_I2C_ADDR;
-		serial_bytes[0] = OFFSET_0_2;
-		break;
-	case 1:		/*  chan 1 offset */
-		i2c_addr = CALDAC0_I2C_ADDR;
-		serial_bytes[0] = OFFSET_1_3;
-		break;
-	case 2:		/*  chan 2 offset */
-		i2c_addr = CALDAC1_I2C_ADDR;
-		serial_bytes[0] = OFFSET_0_2;
-		break;
-	case 3:		/*  chan 3 offset */
-		i2c_addr = CALDAC1_I2C_ADDR;
-		serial_bytes[0] = OFFSET_1_3;
-		break;
-	case 4:		/*  chan 0 gain */
-		i2c_addr = CALDAC0_I2C_ADDR;
-		serial_bytes[0] = GAIN_0_2;
-		break;
-	case 5:		/*  chan 1 gain */
-		i2c_addr = CALDAC0_I2C_ADDR;
-		serial_bytes[0] = GAIN_1_3;
-		break;
-	case 6:		/*  chan 2 gain */
-		i2c_addr = CALDAC1_I2C_ADDR;
-		serial_bytes[0] = GAIN_0_2;
-		break;
-	case 7:		/*  chan 3 gain */
-		i2c_addr = CALDAC1_I2C_ADDR;
-		serial_bytes[0] = GAIN_1_3;
-		break;
-	default:
-		dev_err(dev->class_dev, "invalid caldac channel\n");
-		return -1;
-	}
-	serial_bytes[1] = NOT_CLEAR_REGISTERS | ((value >> 8) & 0xf);
-	serial_bytes[2] = value & 0xff;
-	i2c_write(dev, i2c_addr, serial_bytes, 3);
-	return 0;
-}
-
-static void caldac_write(struct comedi_device *dev, unsigned int channel,
-			 unsigned int value)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-
-	switch (board->layout) {
-	case LAYOUT_60XX:
-	case LAYOUT_64XX:
-		caldac_8800_write(dev, channel, value);
-		break;
-	case LAYOUT_4020:
-		caldac_i2c_write(dev, channel, value);
-		break;
-	default:
-		break;
-	}
-}
-
-static int cb_pcidas64_calib_insn_write(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/*
-	 * Programming the calib device is slow. Only write the
-	 * last data value if the value has changed.
-	 */
-	if (insn->n) {
-		unsigned int val = data[insn->n - 1];
-
-		if (s->readback[chan] != val) {
-			caldac_write(dev, chan, val);
-			s->readback[chan] = val;
-		}
-	}
-
-	return insn->n;
-}
-
-static void ad8402_write(struct comedi_device *dev, unsigned int channel,
-			 unsigned int value)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	static const int bitstream_length = 10;
-	unsigned int bit, register_bits;
-	unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff);
-	static const int ad8402_udelay = 1;
-
-	register_bits = SELECT_8402_64XX_BIT;
-	udelay(ad8402_udelay);
-	writew(register_bits, devpriv->main_iobase + CALIBRATION_REG);
-
-	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
-		if (bitstream & bit)
-			register_bits |= SERIAL_DATA_IN_BIT;
-		else
-			register_bits &= ~SERIAL_DATA_IN_BIT;
-		udelay(ad8402_udelay);
-		writew(register_bits, devpriv->main_iobase + CALIBRATION_REG);
-		udelay(ad8402_udelay);
-		writew(register_bits | SERIAL_CLOCK_BIT,
-		       devpriv->main_iobase + CALIBRATION_REG);
-	}
-
-	udelay(ad8402_udelay);
-	writew(0, devpriv->main_iobase + CALIBRATION_REG);
-}
-
-/* for pci-das6402/16, channel 0 is analog input gain and channel 1 is offset */
-static int cb_pcidas64_ad8402_insn_write(struct comedi_device *dev,
-					 struct comedi_subdevice *s,
-					 struct comedi_insn *insn,
-					 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/*
-	 * Programming the calib device is slow. Only write the
-	 * last data value if the value has changed.
-	 */
-	if (insn->n) {
-		unsigned int val = data[insn->n - 1];
-
-		if (s->readback[chan] != val) {
-			ad8402_write(dev, chan, val);
-			s->readback[chan] = val;
-		}
-	}
-
-	return insn->n;
-}
-
-static uint16_t read_eeprom(struct comedi_device *dev, uint8_t address)
-{
-	struct pcidas64_private *devpriv = dev->private;
-	static const int bitstream_length = 11;
-	static const int read_command = 0x6;
-	unsigned int bitstream = (read_command << 8) | address;
-	unsigned int bit;
-	void __iomem * const plx_control_addr =
-		devpriv->plx9080_iobase + PLX_CONTROL_REG;
-	uint16_t value;
-	static const int value_length = 16;
-	static const int eeprom_udelay = 1;
-
-	udelay(eeprom_udelay);
-	devpriv->plx_control_bits &= ~CTL_EE_CLK & ~CTL_EE_CS;
-	/*  make sure we don't send anything to the i2c bus on 4020 */
-	devpriv->plx_control_bits |= CTL_USERO;
-	writel(devpriv->plx_control_bits, plx_control_addr);
-	/*  activate serial eeprom */
-	udelay(eeprom_udelay);
-	devpriv->plx_control_bits |= CTL_EE_CS;
-	writel(devpriv->plx_control_bits, plx_control_addr);
-
-	/*  write read command and desired memory address */
-	for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) {
-		/*  set bit to be written */
-		udelay(eeprom_udelay);
-		if (bitstream & bit)
-			devpriv->plx_control_bits |= CTL_EE_W;
-		else
-			devpriv->plx_control_bits &= ~CTL_EE_W;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		/*  clock in bit */
-		udelay(eeprom_udelay);
-		devpriv->plx_control_bits |= CTL_EE_CLK;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		udelay(eeprom_udelay);
-		devpriv->plx_control_bits &= ~CTL_EE_CLK;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-	}
-	/*  read back value from eeprom memory location */
-	value = 0;
-	for (bit = 1 << (value_length - 1); bit; bit >>= 1) {
-		/*  clock out bit */
-		udelay(eeprom_udelay);
-		devpriv->plx_control_bits |= CTL_EE_CLK;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		udelay(eeprom_udelay);
-		devpriv->plx_control_bits &= ~CTL_EE_CLK;
-		writel(devpriv->plx_control_bits, plx_control_addr);
-		udelay(eeprom_udelay);
-		if (readl(plx_control_addr) & CTL_EE_R)
-			value |= bit;
-	}
-
-	/*  deactivate eeprom serial input */
-	udelay(eeprom_udelay);
-	devpriv->plx_control_bits &= ~CTL_EE_CS;
-	writel(devpriv->plx_control_bits, plx_control_addr);
-
-	return value;
-}
-
-static int eeprom_read_insn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	data[0] = read_eeprom(dev, CR_CHAN(insn->chanspec));
-
-	return 1;
-}
-
-/*
- * Allocate and initialize the subdevice structures.
- */
-static int setup_subdevices(struct comedi_device *dev)
-{
-	const struct pcidas64_board *board = dev->board_ptr;
-	struct pcidas64_private *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	int i;
-	int ret;
-
-	ret = comedi_alloc_subdevices(dev, 10);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog input subdevice */
-	dev->read_subdev = s;
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DITHER | SDF_CMD_READ;
-	if (board->layout == LAYOUT_60XX)
-		s->subdev_flags |= SDF_COMMON | SDF_DIFF;
-	else if (board->layout == LAYOUT_64XX)
-		s->subdev_flags |= SDF_DIFF;
-	/* XXX Number of inputs in differential mode is ignored */
-	s->n_chan = board->ai_se_chans;
-	s->len_chanlist = 0x2000;
-	s->maxdata = (1 << board->ai_bits) - 1;
-	s->range_table = board->ai_range_table;
-	s->insn_read = ai_rinsn;
-	s->insn_config = ai_config_insn;
-	s->do_cmd = ai_cmd;
-	s->do_cmdtest = ai_cmdtest;
-	s->cancel = ai_cancel;
-	if (board->layout == LAYOUT_4020) {
-		uint8_t data;
-		/*
-		 * set adc to read from inputs
-		 * (not internal calibration sources)
-		 */
-		devpriv->i2c_cal_range_bits = adc_src_4020_bits(4);
-		/*  set channels to +-5 volt input ranges */
-		for (i = 0; i < s->n_chan; i++)
-			devpriv->i2c_cal_range_bits |= attenuate_bit(i);
-		data = devpriv->i2c_cal_range_bits;
-		i2c_write(dev, RANGE_CAL_I2C_ADDR, &data, sizeof(data));
-	}
-
-	/* analog output subdevice */
-	s = &dev->subdevices[1];
-	if (board->ao_nchan) {
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_READABLE | SDF_WRITABLE |
-				  SDF_GROUND | SDF_CMD_WRITE;
-		s->n_chan = board->ao_nchan;
-		s->maxdata = (1 << board->ao_bits) - 1;
-		s->range_table = board->ao_range_table;
-		s->insn_write = ao_winsn;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		if (ao_cmd_is_supported(board)) {
-			dev->write_subdev = s;
-			s->do_cmdtest = ao_cmdtest;
-			s->do_cmd = ao_cmd;
-			s->len_chanlist = board->ao_nchan;
-			s->cancel = ao_cancel;
-		}
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/*  digital input */
-	s = &dev->subdevices[2];
-	if (board->layout == LAYOUT_64XX) {
-		s->type = COMEDI_SUBD_DI;
-		s->subdev_flags = SDF_READABLE;
-		s->n_chan = 4;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_bits = di_rbits;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/*  digital output */
-	if (board->layout == LAYOUT_64XX) {
-		s = &dev->subdevices[3];
-		s->type = COMEDI_SUBD_DO;
-		s->subdev_flags = SDF_WRITABLE;
-		s->n_chan = 4;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_bits = do_wbits;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/* 8255 */
-	s = &dev->subdevices[4];
-	if (board->has_8255) {
-		if (board->layout == LAYOUT_4020) {
-			ret = subdev_8255_init(dev, s, dio_callback_4020,
-					       I8255_4020_REG);
-		} else {
-			ret = subdev_8255_mm_init(dev, s, NULL,
-						  DIO_8255_OFFSET);
-		}
-		if (ret)
-			return ret;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/*  8 channel dio for 60xx */
-	s = &dev->subdevices[5];
-	if (board->layout == LAYOUT_60XX) {
-		s->type = COMEDI_SUBD_DIO;
-		s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-		s->n_chan = 8;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_config = dio_60xx_config_insn;
-		s->insn_bits = dio_60xx_wbits;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/*  caldac */
-	s = &dev->subdevices[6];
-	s->type = COMEDI_SUBD_CALIB;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan = 8;
-	if (board->layout == LAYOUT_4020)
-		s->maxdata = 0xfff;
-	else
-		s->maxdata = 0xff;
-	s->insn_write = cb_pcidas64_calib_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < s->n_chan; i++) {
-		caldac_write(dev, i, s->maxdata / 2);
-		s->readback[i] = s->maxdata / 2;
-	}
-
-	/*  2 channel ad8402 potentiometer */
-	s = &dev->subdevices[7];
-	if (board->layout == LAYOUT_64XX) {
-		s->type = COMEDI_SUBD_CALIB;
-		s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-		s->n_chan = 2;
-		s->maxdata = 0xff;
-		s->insn_write = cb_pcidas64_ad8402_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		for (i = 0; i < s->n_chan; i++) {
-			ad8402_write(dev, i, s->maxdata / 2);
-			s->readback[i] = s->maxdata / 2;
-		}
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/* serial EEPROM, if present */
-	s = &dev->subdevices[8];
-	if (readl(devpriv->plx9080_iobase + PLX_CONTROL_REG) & CTL_EECHK) {
-		s->type = COMEDI_SUBD_MEMORY;
-		s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
-		s->n_chan = 128;
-		s->maxdata = 0xffff;
-		s->insn_read = eeprom_read_insn;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/*  user counter subd XXX */
-	s = &dev->subdevices[9];
-	s->type = COMEDI_SUBD_UNUSED;
-
-	return 0;
-}
-
-static int auto_attach(struct comedi_device *dev,
-		       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct pcidas64_board *board = NULL;
-	struct pcidas64_private *devpriv;
-	uint32_t local_range, local_decode;
-	int retval;
-
-	if (context < ARRAY_SIZE(pcidas64_boards))
-		board = &pcidas64_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	retval = comedi_pci_enable(dev);
-	if (retval)
-		return retval;
-	pci_set_master(pcidev);
-
-	/* Initialize dev->board_name */
-	dev->board_name = board->name;
-
-	devpriv->main_phys_iobase = pci_resource_start(pcidev, 2);
-	devpriv->dio_counter_phys_iobase = pci_resource_start(pcidev, 3);
-
-	devpriv->plx9080_iobase = pci_ioremap_bar(pcidev, 0);
-	devpriv->main_iobase = pci_ioremap_bar(pcidev, 2);
-	dev->mmio = pci_ioremap_bar(pcidev, 3);
-
-	if (!devpriv->plx9080_iobase || !devpriv->main_iobase || !dev->mmio) {
-		dev_warn(dev->class_dev, "failed to remap io memory\n");
-		return -ENOMEM;
-	}
-
-	/*  figure out what local addresses are */
-	local_range = readl(devpriv->plx9080_iobase + PLX_LAS0RNG_REG) &
-		      LRNG_MEM_MASK;
-	local_decode = readl(devpriv->plx9080_iobase + PLX_LAS0MAP_REG) &
-		       local_range & LMAP_MEM_MASK;
-	devpriv->local0_iobase = ((uint32_t)devpriv->main_phys_iobase &
-				  ~local_range) | local_decode;
-	local_range = readl(devpriv->plx9080_iobase + PLX_LAS1RNG_REG) &
-		      LRNG_MEM_MASK;
-	local_decode = readl(devpriv->plx9080_iobase + PLX_LAS1MAP_REG) &
-		       local_range & LMAP_MEM_MASK;
-	devpriv->local1_iobase = ((uint32_t)devpriv->dio_counter_phys_iobase &
-				  ~local_range) | local_decode;
-
-	retval = alloc_and_init_dma_members(dev);
-	if (retval < 0)
-		return retval;
-
-	devpriv->hw_revision =
-		hw_revision(dev, readw(devpriv->main_iobase + HW_STATUS_REG));
-	dev_dbg(dev->class_dev, "stc hardware revision %i\n",
-		devpriv->hw_revision);
-	init_plx9080(dev);
-	init_stc_registers(dev);
-
-	retval = request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
-			     dev->board_name, dev);
-	if (retval) {
-		dev_dbg(dev->class_dev, "unable to allocate irq %u\n",
-			pcidev->irq);
-		return retval;
-	}
-	dev->irq = pcidev->irq;
-	dev_dbg(dev->class_dev, "irq %u\n", dev->irq);
-
-	retval = setup_subdevices(dev);
-	if (retval < 0)
-		return retval;
-
-	return 0;
-}
-
-static void detach(struct comedi_device *dev)
-{
-	struct pcidas64_private *devpriv = dev->private;
-
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-	if (devpriv) {
-		if (devpriv->plx9080_iobase) {
-			disable_plx_interrupts(dev);
-			iounmap(devpriv->plx9080_iobase);
-		}
-		if (devpriv->main_iobase)
-			iounmap(devpriv->main_iobase);
-		if (dev->mmio)
-			iounmap(dev->mmio);
-	}
-	comedi_pci_disable(dev);
-	cb_pcidas64_free_dma(dev);
-}
-
-static struct comedi_driver cb_pcidas64_driver = {
-	.driver_name	= "cb_pcidas64",
-	.module		= THIS_MODULE,
-	.auto_attach	= auto_attach,
-	.detach		= detach,
-};
-
-static int cb_pcidas64_pci_probe(struct pci_dev *dev,
-				 const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &cb_pcidas64_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id cb_pcidas64_pci_table[] = {
-	{ PCI_VDEVICE(CB, 0x001d), BOARD_PCIDAS6402_16 },
-	{ PCI_VDEVICE(CB, 0x001e), BOARD_PCIDAS6402_12 },
-	{ PCI_VDEVICE(CB, 0x0035), BOARD_PCIDAS64_M1_16 },
-	{ PCI_VDEVICE(CB, 0x0036), BOARD_PCIDAS64_M2_16 },
-	{ PCI_VDEVICE(CB, 0x0037), BOARD_PCIDAS64_M3_16 },
-	{ PCI_VDEVICE(CB, 0x0052), BOARD_PCIDAS4020_12 },
-	{ PCI_VDEVICE(CB, 0x005d), BOARD_PCIDAS6023 },
-	{ PCI_VDEVICE(CB, 0x005e), BOARD_PCIDAS6025 },
-	{ PCI_VDEVICE(CB, 0x005f), BOARD_PCIDAS6030 },
-	{ PCI_VDEVICE(CB, 0x0060), BOARD_PCIDAS6031 },
-	{ PCI_VDEVICE(CB, 0x0061), BOARD_PCIDAS6032 },
-	{ PCI_VDEVICE(CB, 0x0062), BOARD_PCIDAS6033 },
-	{ PCI_VDEVICE(CB, 0x0063), BOARD_PCIDAS6034 },
-	{ PCI_VDEVICE(CB, 0x0064), BOARD_PCIDAS6035 },
-	{ PCI_VDEVICE(CB, 0x0065), BOARD_PCIDAS6040 },
-	{ PCI_VDEVICE(CB, 0x0066), BOARD_PCIDAS6052 },
-	{ PCI_VDEVICE(CB, 0x0067), BOARD_PCIDAS6070 },
-	{ PCI_VDEVICE(CB, 0x0068), BOARD_PCIDAS6071 },
-	{ PCI_VDEVICE(CB, 0x006f), BOARD_PCIDAS6036 },
-	{ PCI_VDEVICE(CB, 0x0078), BOARD_PCIDAS6013 },
-	{ PCI_VDEVICE(CB, 0x0079), BOARD_PCIDAS6014 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, cb_pcidas64_pci_table);
-
-static struct pci_driver cb_pcidas64_pci_driver = {
-	.name		= "cb_pcidas64",
-	.id_table	= cb_pcidas64_pci_table,
-	.probe		= cb_pcidas64_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(cb_pcidas64_driver, cb_pcidas64_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
deleted file mode 100644
index b00a36a5cb36..000000000000
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/*
- * comedi/drivers/cb_pcidda.c
- * Driver for the ComputerBoards / MeasurementComputing PCI-DDA series.
- *
- * Copyright (C) 2001 Ivan Martinez <ivanmr@altavista.com>
- * Copyright (C) 2001 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: cb_pcidda
- * Description: MeasurementComputing PCI-DDA series
- * Devices: [Measurement Computing] PCI-DDA08/12 (pci-dda08/12),
- *   PCI-DDA04/12 (pci-dda04/12), PCI-DDA02/12 (pci-dda02/12),
- *   PCI-DDA08/16 (pci-dda08/16), PCI-DDA04/16 (pci-dda04/16),
- *   PCI-DDA02/16 (pci-dda02/16)
- * Author: Ivan Martinez <ivanmr@altavista.com>
- *	   Frank Mori Hess <fmhess@users.sourceforge.net>
- * Status: works
- *
- * Configuration options: not applicable, uses PCI auto config
- *
- * Only simple analog output writing is supported.
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-#include "8255.h"
-
-#define EEPROM_SIZE	128	/*  number of entries in eeprom */
-/* maximum number of ao channels for supported boards */
-#define MAX_AO_CHANNELS 8
-
-/* Digital I/O registers */
-#define CB_DDA_DIO0_8255_BASE		0x00
-#define CB_DDA_DIO1_8255_BASE		0x04
-
-/* DAC registers */
-#define CB_DDA_DA_CTRL_REG		0x00	   /* D/A Control Register  */
-#define CB_DDA_DA_CTRL_SU		(1 << 0)   /*  Simultaneous update  */
-#define CB_DDA_DA_CTRL_EN		(1 << 1)   /*  Enable specified DAC */
-#define CB_DDA_DA_CTRL_DAC(x)		((x) << 2) /*  Specify DAC channel  */
-#define CB_DDA_DA_CTRL_RANGE2V5		(0 << 6)   /*  2.5V range           */
-#define CB_DDA_DA_CTRL_RANGE5V		(2 << 6)   /*  5V range             */
-#define CB_DDA_DA_CTRL_RANGE10V		(3 << 6)   /*  10V range            */
-#define CB_DDA_DA_CTRL_UNIP		(1 << 8)   /*  Unipolar range       */
-
-#define DACALIBRATION1	4	/*  D/A CALIBRATION REGISTER 1 */
-/* write bits */
-/* serial data input for eeprom, caldacs, reference dac */
-#define SERIAL_IN_BIT   0x1
-#define	CAL_CHANNEL_MASK	(0x7 << 1)
-#define	CAL_CHANNEL_BITS(channel)	(((channel) << 1) & CAL_CHANNEL_MASK)
-/* read bits */
-#define	CAL_COUNTER_MASK	0x1f
-/* calibration counter overflow status bit */
-#define CAL_COUNTER_OVERFLOW_BIT        0x20
-/* analog output is less than reference dac voltage */
-#define AO_BELOW_REF_BIT        0x40
-#define	SERIAL_OUT_BIT	0x80	/*  serial data out, for reading from eeprom */
-
-#define DACALIBRATION2	6	/*  D/A CALIBRATION REGISTER 2 */
-#define	SELECT_EEPROM_BIT	0x1	/*  send serial data in to eeprom */
-/* don't send serial data to MAX542 reference dac */
-#define DESELECT_REF_DAC_BIT    0x2
-/* don't send serial data to caldac n */
-#define DESELECT_CALDAC_BIT(n)  (0x4 << (n))
-/* manual says to set this bit with no explanation */
-#define DUMMY_BIT       0x40
-
-#define CB_DDA_DA_DATA_REG(x)		(0x08 + ((x) * 2))
-
-/* Offsets for the caldac channels */
-#define CB_DDA_CALDAC_FINE_GAIN		0
-#define CB_DDA_CALDAC_COURSE_GAIN	1
-#define CB_DDA_CALDAC_COURSE_OFFSET	2
-#define CB_DDA_CALDAC_FINE_OFFSET	3
-
-static const struct comedi_lrange cb_pcidda_ranges = {
-	6, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5)
-	}
-};
-
-enum cb_pcidda_boardid {
-	BOARD_DDA02_12,
-	BOARD_DDA04_12,
-	BOARD_DDA08_12,
-	BOARD_DDA02_16,
-	BOARD_DDA04_16,
-	BOARD_DDA08_16,
-};
-
-struct cb_pcidda_board {
-	const char *name;
-	int ao_chans;
-	int ao_bits;
-};
-
-static const struct cb_pcidda_board cb_pcidda_boards[] = {
-	[BOARD_DDA02_12] = {
-		.name		= "pci-dda02/12",
-		.ao_chans	= 2,
-		.ao_bits	= 12,
-	},
-	[BOARD_DDA04_12] = {
-		.name		= "pci-dda04/12",
-		.ao_chans	= 4,
-		.ao_bits	= 12,
-	},
-	[BOARD_DDA08_12] = {
-		.name		= "pci-dda08/12",
-		.ao_chans	= 8,
-		.ao_bits	= 12,
-	},
-	[BOARD_DDA02_16] = {
-		.name		= "pci-dda02/16",
-		.ao_chans	= 2,
-		.ao_bits	= 16,
-	},
-	[BOARD_DDA04_16] = {
-		.name		= "pci-dda04/16",
-		.ao_chans	= 4,
-		.ao_bits	= 16,
-	},
-	[BOARD_DDA08_16] = {
-		.name		= "pci-dda08/16",
-		.ao_chans	= 8,
-		.ao_bits	= 16,
-	},
-};
-
-struct cb_pcidda_private {
-	unsigned long daqio;
-	/* bits last written to da calibration register 1 */
-	unsigned int dac_cal1_bits;
-	/* current range settings for output channels */
-	unsigned int ao_range[MAX_AO_CHANNELS];
-	u16 eeprom_data[EEPROM_SIZE];	/*  software copy of board's eeprom */
-};
-
-/* lowlevel read from eeprom */
-static unsigned int cb_pcidda_serial_in(struct comedi_device *dev)
-{
-	struct cb_pcidda_private *devpriv = dev->private;
-	unsigned int value = 0;
-	int i;
-	const int value_width = 16;	/*  number of bits wide values are */
-
-	for (i = 1; i <= value_width; i++) {
-		/*  read bits most significant bit first */
-		if (inw_p(devpriv->daqio + DACALIBRATION1) & SERIAL_OUT_BIT)
-			value |= 1 << (value_width - i);
-	}
-
-	return value;
-}
-
-/* lowlevel write to eeprom/dac */
-static void cb_pcidda_serial_out(struct comedi_device *dev, unsigned int value,
-				 unsigned int num_bits)
-{
-	struct cb_pcidda_private *devpriv = dev->private;
-	int i;
-
-	for (i = 1; i <= num_bits; i++) {
-		/*  send bits most significant bit first */
-		if (value & (1 << (num_bits - i)))
-			devpriv->dac_cal1_bits |= SERIAL_IN_BIT;
-		else
-			devpriv->dac_cal1_bits &= ~SERIAL_IN_BIT;
-		outw_p(devpriv->dac_cal1_bits, devpriv->daqio + DACALIBRATION1);
-	}
-}
-
-/* reads a 16 bit value from board's eeprom */
-static unsigned int cb_pcidda_read_eeprom(struct comedi_device *dev,
-					  unsigned int address)
-{
-	struct cb_pcidda_private *devpriv = dev->private;
-	unsigned int i;
-	unsigned int cal2_bits;
-	unsigned int value;
-	/* one caldac for every two dac channels */
-	const int max_num_caldacs = 4;
-	/* bits to send to tell eeprom we want to read */
-	const int read_instruction = 0x6;
-	const int instruction_length = 3;
-	const int address_length = 8;
-
-	/*  send serial output stream to eeprom */
-	cal2_bits = SELECT_EEPROM_BIT | DESELECT_REF_DAC_BIT | DUMMY_BIT;
-	/*  deactivate caldacs (one caldac for every two channels) */
-	for (i = 0; i < max_num_caldacs; i++)
-		cal2_bits |= DESELECT_CALDAC_BIT(i);
-	outw_p(cal2_bits, devpriv->daqio + DACALIBRATION2);
-
-	/*  tell eeprom we want to read */
-	cb_pcidda_serial_out(dev, read_instruction, instruction_length);
-	/*  send address we want to read from */
-	cb_pcidda_serial_out(dev, address, address_length);
-
-	value = cb_pcidda_serial_in(dev);
-
-	/*  deactivate eeprom */
-	cal2_bits &= ~SELECT_EEPROM_BIT;
-	outw_p(cal2_bits, devpriv->daqio + DACALIBRATION2);
-
-	return value;
-}
-
-/* writes to 8 bit calibration dacs */
-static void cb_pcidda_write_caldac(struct comedi_device *dev,
-				   unsigned int caldac, unsigned int channel,
-				   unsigned int value)
-{
-	struct cb_pcidda_private *devpriv = dev->private;
-	unsigned int cal2_bits;
-	unsigned int i;
-	/* caldacs use 3 bit channel specification */
-	const int num_channel_bits = 3;
-	const int num_caldac_bits = 8;	/*  8 bit calibration dacs */
-	/* one caldac for every two dac channels */
-	const int max_num_caldacs = 4;
-
-	/* write 3 bit channel */
-	cb_pcidda_serial_out(dev, channel, num_channel_bits);
-	/*  write 8 bit caldac value */
-	cb_pcidda_serial_out(dev, value, num_caldac_bits);
-
-/*
-* latch stream into appropriate caldac deselect reference dac
-*/
-	cal2_bits = DESELECT_REF_DAC_BIT | DUMMY_BIT;
-	/*  deactivate caldacs (one caldac for every two channels) */
-	for (i = 0; i < max_num_caldacs; i++)
-		cal2_bits |= DESELECT_CALDAC_BIT(i);
-	/*  activate the caldac we want */
-	cal2_bits &= ~DESELECT_CALDAC_BIT(caldac);
-	outw_p(cal2_bits, devpriv->daqio + DACALIBRATION2);
-	/*  deactivate caldac */
-	cal2_bits |= DESELECT_CALDAC_BIT(caldac);
-	outw_p(cal2_bits, devpriv->daqio + DACALIBRATION2);
-}
-
-/* set caldacs to eeprom values for given channel and range */
-static void cb_pcidda_calibrate(struct comedi_device *dev, unsigned int channel,
-				unsigned int range)
-{
-	struct cb_pcidda_private *devpriv = dev->private;
-	unsigned int caldac = channel / 2;	/* two caldacs per channel */
-	unsigned int chan = 4 * (channel % 2);	/* caldac channel base */
-	unsigned int index = 2 * range + 12 * channel;
-	unsigned int offset;
-	unsigned int gain;
-
-	/* save range so we can tell when we need to readjust calibration */
-	devpriv->ao_range[channel] = range;
-
-	/* get values from eeprom data */
-	offset = devpriv->eeprom_data[0x7 + index];
-	gain = devpriv->eeprom_data[0x8 + index];
-
-	/* set caldacs */
-	cb_pcidda_write_caldac(dev, caldac, chan + CB_DDA_CALDAC_COURSE_OFFSET,
-			       (offset >> 8) & 0xff);
-	cb_pcidda_write_caldac(dev, caldac, chan + CB_DDA_CALDAC_FINE_OFFSET,
-			       offset & 0xff);
-	cb_pcidda_write_caldac(dev, caldac, chan + CB_DDA_CALDAC_COURSE_GAIN,
-			       (gain >> 8) & 0xff);
-	cb_pcidda_write_caldac(dev, caldac, chan + CB_DDA_CALDAC_FINE_GAIN,
-			       gain & 0xff);
-}
-
-static int cb_pcidda_ao_insn_write(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct cb_pcidda_private *devpriv = dev->private;
-	unsigned int channel = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int ctrl;
-
-	if (range != devpriv->ao_range[channel])
-		cb_pcidda_calibrate(dev, channel, range);
-
-	ctrl = CB_DDA_DA_CTRL_EN | CB_DDA_DA_CTRL_DAC(channel);
-
-	switch (range) {
-	case 0:
-	case 3:
-		ctrl |= CB_DDA_DA_CTRL_RANGE10V;
-		break;
-	case 1:
-	case 4:
-		ctrl |= CB_DDA_DA_CTRL_RANGE5V;
-		break;
-	case 2:
-	case 5:
-		ctrl |= CB_DDA_DA_CTRL_RANGE2V5;
-		break;
-	}
-
-	if (range > 2)
-		ctrl |= CB_DDA_DA_CTRL_UNIP;
-
-	outw(ctrl, devpriv->daqio + CB_DDA_DA_CTRL_REG);
-
-	outw(data[0], devpriv->daqio + CB_DDA_DA_DATA_REG(channel));
-
-	return insn->n;
-}
-
-static int cb_pcidda_auto_attach(struct comedi_device *dev,
-				 unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct cb_pcidda_board *board = NULL;
-	struct cb_pcidda_private *devpriv;
-	struct comedi_subdevice *s;
-	int i;
-	int ret;
-
-	if (context < ARRAY_SIZE(cb_pcidda_boards))
-		board = &cb_pcidda_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 2);
-	devpriv->daqio = pci_resource_start(pcidev, 3);
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = board->ao_chans;
-	s->maxdata = (1 << board->ao_bits) - 1;
-	s->range_table = &cb_pcidda_ranges;
-	s->insn_write = cb_pcidda_ao_insn_write;
-
-	/* two 8255 digital io subdevices */
-	for (i = 0; i < 2; i++) {
-		s = &dev->subdevices[1 + i];
-		ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
-		if (ret)
-			return ret;
-	}
-
-	/* Read the caldac eeprom data */
-	for (i = 0; i < EEPROM_SIZE; i++)
-		devpriv->eeprom_data[i] = cb_pcidda_read_eeprom(dev, i);
-
-	/*  set calibrations dacs */
-	for (i = 0; i < board->ao_chans; i++)
-		cb_pcidda_calibrate(dev, i, devpriv->ao_range[i]);
-
-	return 0;
-}
-
-static struct comedi_driver cb_pcidda_driver = {
-	.driver_name	= "cb_pcidda",
-	.module		= THIS_MODULE,
-	.auto_attach	= cb_pcidda_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int cb_pcidda_pci_probe(struct pci_dev *dev,
-			       const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &cb_pcidda_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id cb_pcidda_pci_table[] = {
-	{ PCI_VDEVICE(CB, 0x0020), BOARD_DDA02_12 },
-	{ PCI_VDEVICE(CB, 0x0021), BOARD_DDA04_12 },
-	{ PCI_VDEVICE(CB, 0x0022), BOARD_DDA08_12 },
-	{ PCI_VDEVICE(CB, 0x0023), BOARD_DDA02_16 },
-	{ PCI_VDEVICE(CB, 0x0024), BOARD_DDA04_16 },
-	{ PCI_VDEVICE(CB, 0x0025), BOARD_DDA08_16 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, cb_pcidda_pci_table);
-
-static struct pci_driver cb_pcidda_pci_driver = {
-	.name		= "cb_pcidda",
-	.id_table	= cb_pcidda_pci_table,
-	.probe		= cb_pcidda_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(cb_pcidda_driver, cb_pcidda_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
deleted file mode 100644
index 47e38398921e..000000000000
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
- * comedi/drivers/cb_pcimdas.c
- * Comedi driver for Computer Boards PCIM-DAS1602/16 and PCIe-DAS1602/16
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: cb_pcimdas
- * Description: Measurement Computing PCI Migration series boards
- * Devices: [ComputerBoards] PCIM-DAS1602/16 (cb_pcimdas), PCIe-DAS1602/16
- * Author: Richard Bytheway
- * Updated: Mon, 13 Oct 2014 11:57:39 +0000
- * Status: experimental
- *
- * Written to support the PCIM-DAS1602/16 and PCIe-DAS1602/16.
- *
- * Configuration Options:
- *   none
- *
- * Manual configuration of PCI(e) cards is not supported; they are configured
- * automatically.
- *
- * Developed from cb_pcidas and skel by Richard Bytheway (mocelet@sucs.org).
- * Only supports DIO, AO and simple AI in it's present form.
- * No interrupts, multi channel or FIFO AI,
- * although the card looks like it could support this.
- *
- * http://www.mccdaq.com/PDFs/Manuals/pcim-das1602-16.pdf
- * http://www.mccdaq.com/PDFs/Manuals/pcie-das1602-16.pdf
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "comedi_8254.h"
-#include "plx9052.h"
-#include "8255.h"
-
-/*
- * PCI Bar 1 Register map
- * see plx9052.h for register and bit defines
- */
-
-/*
- * PCI Bar 2 Register map (devpriv->daqio)
- */
-#define PCIMDAS_AI_REG			0x00
-#define PCIMDAS_AI_SOFTTRIG_REG		0x00
-#define PCIMDAS_AO_REG(x)		(0x02 + ((x) * 2))
-
-/*
- * PCI Bar 3 Register map (devpriv->BADR3)
- */
-#define PCIMDAS_MUX_REG			0x00
-#define PCIMDAS_MUX(_lo, _hi)		((_lo) | ((_hi) << 4))
-#define PCIMDAS_DI_DO_REG		0x01
-#define PCIMDAS_STATUS_REG		0x02
-#define PCIMDAS_STATUS_EOC		BIT(7)
-#define PCIMDAS_STATUS_UB		BIT(6)
-#define PCIMDAS_STATUS_MUX		BIT(5)
-#define PCIMDAS_STATUS_CLK		BIT(4)
-#define PCIMDAS_STATUS_TO_CURR_MUX(x)	((x) & 0xf)
-#define PCIMDAS_CONV_STATUS_REG		0x03
-#define PCIMDAS_CONV_STATUS_EOC		BIT(7)
-#define PCIMDAS_CONV_STATUS_EOB		BIT(6)
-#define PCIMDAS_CONV_STATUS_EOA		BIT(5)
-#define PCIMDAS_CONV_STATUS_FNE		BIT(4)
-#define PCIMDAS_CONV_STATUS_FHF		BIT(3)
-#define PCIMDAS_CONV_STATUS_OVERRUN	BIT(2)
-#define PCIMDAS_IRQ_REG			0x04
-#define PCIMDAS_IRQ_INTE		BIT(7)
-#define PCIMDAS_IRQ_INT			BIT(6)
-#define PCIMDAS_IRQ_OVERRUN		BIT(4)
-#define PCIMDAS_IRQ_EOA			BIT(3)
-#define PCIMDAS_IRQ_EOA_INT_SEL		BIT(2)
-#define PCIMDAS_IRQ_INTSEL(x)		((x) << 0)
-#define PCIMDAS_IRQ_INTSEL_EOC		PCIMDAS_IRQ_INTSEL(0)
-#define PCIMDAS_IRQ_INTSEL_FNE		PCIMDAS_IRQ_INTSEL(1)
-#define PCIMDAS_IRQ_INTSEL_EOB		PCIMDAS_IRQ_INTSEL(2)
-#define PCIMDAS_IRQ_INTSEL_FHF_EOA	PCIMDAS_IRQ_INTSEL(3)
-#define PCIMDAS_PACER_REG		0x05
-#define PCIMDAS_PACER_GATE_STATUS	BIT(6)
-#define PCIMDAS_PACER_GATE_POL		BIT(5)
-#define PCIMDAS_PACER_GATE_LATCH	BIT(4)
-#define PCIMDAS_PACER_GATE_EN		BIT(3)
-#define PCIMDAS_PACER_EXT_PACER_POL	BIT(2)
-#define PCIMDAS_PACER_SRC(x)		((x) << 0)
-#define PCIMDAS_PACER_SRC_POLLED	PCIMDAS_PACER_SRC(0)
-#define PCIMDAS_PACER_SRC_EXT		PCIMDAS_PACER_SRC(2)
-#define PCIMDAS_PACER_SRC_INT		PCIMDAS_PACER_SRC(3)
-#define PCIMDAS_PACER_SRC_MASK		(3 << 0)
-#define PCIMDAS_BURST_REG		0x06
-#define PCIMDAS_BURST_BME		BIT(1)
-#define PCIMDAS_BURST_CONV_EN		BIT(0)
-#define PCIMDAS_GAIN_REG		0x07
-#define PCIMDAS_8254_BASE		0x08
-#define PCIMDAS_USER_CNTR_REG		0x0c
-#define PCIMDAS_USER_CNTR_CTR1_CLK_SEL	BIT(0)
-#define PCIMDAS_RESIDUE_MSB_REG		0x0d
-#define PCIMDAS_RESIDUE_LSB_REG		0x0e
-
-/*
- * PCI Bar 4 Register map (dev->iobase)
- */
-#define PCIMDAS_8255_BASE		0x00
-
-static const struct comedi_lrange cb_pcimdas_ai_bip_range = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange cb_pcimdas_ai_uni_range = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-/*
- * The Analog Output range is not programmable. The DAC ranges are
- * jumper-settable on the board. The settings are not software-readable.
- */
-static const struct comedi_lrange cb_pcimdas_ao_range = {
-	6, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		RANGE_ext(-1, 1),
-		RANGE_ext(0, 1)
-	}
-};
-
-/*
- * this structure is for data unique to this hardware driver.  If
- * several hardware drivers keep similar information in this structure,
- * feel free to suggest moving the variable to the struct comedi_device
- * struct.
- */
-struct cb_pcimdas_private {
-	/* base addresses */
-	unsigned long daqio;
-	unsigned long BADR3;
-};
-
-static int cb_pcimdas_ai_eoc(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned long context)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int status;
-
-	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
-	if ((status & PCIMDAS_STATUS_EOC) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int cb_pcimdas_ai_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int n;
-	unsigned int d;
-	int ret;
-
-	/*  only support sw initiated reads from a single channel */
-
-	/* configure for sw initiated read */
-	d = inb(devpriv->BADR3 + PCIMDAS_PACER_REG);
-	if ((d & PCIMDAS_PACER_SRC_MASK) != PCIMDAS_PACER_SRC_POLLED) {
-		d &= ~PCIMDAS_PACER_SRC_MASK;
-		d |= PCIMDAS_PACER_SRC_POLLED;
-		outb(d, devpriv->BADR3 + PCIMDAS_PACER_REG);
-	}
-
-	/* set bursting off, conversions on */
-	outb(PCIMDAS_BURST_CONV_EN, devpriv->BADR3 + PCIMDAS_BURST_REG);
-
-	/* set range */
-	outb(range, devpriv->BADR3 + PCIMDAS_GAIN_REG);
-
-	/* set mux for single channel scan */
-	outb(PCIMDAS_MUX(chan, chan), devpriv->BADR3 + PCIMDAS_MUX_REG);
-
-	/* convert n samples */
-	for (n = 0; n < insn->n; n++) {
-		/* trigger conversion */
-		outw(0, devpriv->daqio + PCIMDAS_AI_SOFTTRIG_REG);
-
-		/* wait for conversion to end */
-		ret = comedi_timeout(dev, s, insn, cb_pcimdas_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* read data */
-		data[n] = inw(devpriv->daqio + PCIMDAS_AI_REG);
-	}
-
-	/* return the number of samples read/written */
-	return n;
-}
-
-static int cb_pcimdas_ao_insn_write(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, devpriv->daqio + PCIMDAS_AO_REG(chan));
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int cb_pcimdas_di_insn_bits(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int val;
-
-	val = inb(devpriv->BADR3 + PCIMDAS_DI_DO_REG);
-
-	data[1] = val & 0x0f;
-
-	return insn->n;
-}
-
-static int cb_pcimdas_do_insn_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, devpriv->BADR3 + PCIMDAS_DI_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int cb_pcimdas_counter_insn_config(struct comedi_device *dev,
-					  struct comedi_subdevice *s,
-					  struct comedi_insn *insn,
-					  unsigned int *data)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int ctrl;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		switch (data[1]) {
-		case 0:	/* internal 100 kHz clock */
-			ctrl = PCIMDAS_USER_CNTR_CTR1_CLK_SEL;
-			break;
-		case 1:	/* external clk on pin 21 */
-			ctrl = 0;
-			break;
-		default:
-			return -EINVAL;
-		}
-		outb(ctrl, devpriv->BADR3 + PCIMDAS_USER_CNTR_REG);
-		break;
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		ctrl = inb(devpriv->BADR3 + PCIMDAS_USER_CNTR_REG);
-		if (ctrl & PCIMDAS_USER_CNTR_CTR1_CLK_SEL) {
-			data[1] = 0;
-			data[2] = I8254_OSC_BASE_100KHZ;
-		} else {
-			data[1] = 1;
-			data[2] = 0;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static unsigned int cb_pcimdas_pacer_clk(struct comedi_device *dev)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int status;
-
-	/* The Pacer Clock jumper selects a 10 MHz or 1 MHz clock */
-	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
-	if (status & PCIMDAS_STATUS_CLK)
-		return I8254_OSC_BASE_10MHZ;
-	return I8254_OSC_BASE_1MHZ;
-}
-
-static bool cb_pcimdas_is_ai_se(struct comedi_device *dev)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int status;
-
-	/*
-	 * The number of Analog Input channels is set with the
-	 * Analog Input Mode Switch on the board. The board can
-	 * have 16 single-ended or 8 differential channels.
-	 */
-	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
-	return status & PCIMDAS_STATUS_MUX;
-}
-
-static bool cb_pcimdas_is_ai_uni(struct comedi_device *dev)
-{
-	struct cb_pcimdas_private *devpriv = dev->private;
-	unsigned int status;
-
-	/*
-	 * The Analog Input range polarity is set with the
-	 * Analog Input Polarity Switch on the board. The
-	 * inputs can be set to Unipolar or Bipolar ranges.
-	 */
-	status = inb(devpriv->BADR3 + PCIMDAS_STATUS_REG);
-	return status & PCIMDAS_STATUS_UB;
-}
-
-static int cb_pcimdas_auto_attach(struct comedi_device *dev,
-				  unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct cb_pcimdas_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv->daqio = pci_resource_start(pcidev, 2);
-	devpriv->BADR3 = pci_resource_start(pcidev, 3);
-	dev->iobase = pci_resource_start(pcidev, 4);
-
-	dev->pacer = comedi_8254_init(devpriv->BADR3 + PCIMDAS_8254_BASE,
-				      cb_pcimdas_pacer_clk(dev),
-				      I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 6);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE;
-	if (cb_pcimdas_is_ai_se(dev)) {
-		s->subdev_flags	|= SDF_GROUND;
-		s->n_chan	= 16;
-	} else {
-		s->subdev_flags	|= SDF_DIFF;
-		s->n_chan	= 8;
-	}
-	s->maxdata	= 0xffff;
-	s->range_table	= cb_pcimdas_is_ai_uni(dev) ? &cb_pcimdas_ai_uni_range
-						    : &cb_pcimdas_ai_bip_range;
-	s->insn_read	= cb_pcimdas_ai_insn_read;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 0xfff;
-	s->range_table	= &cb_pcimdas_ao_range;
-	s->insn_write	= cb_pcimdas_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[2];
-	ret = subdev_8255_init(dev, s, NULL, PCIMDAS_8255_BASE);
-	if (ret)
-		return ret;
-
-	/* Digital Input subdevice (main connector) */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= cb_pcimdas_di_insn_bits;
-
-	/* Digital Output subdevice (main connector) */
-	s = &dev->subdevices[4];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= cb_pcimdas_do_insn_bits;
-
-	/* Counter subdevice (8254) */
-	s = &dev->subdevices[5];
-	comedi_8254_subdevice_init(s, dev->pacer);
-
-	dev->pacer->insn_config = cb_pcimdas_counter_insn_config;
-
-	/* counters 1 and 2 are used internally for the pacer */
-	comedi_8254_set_busy(dev->pacer, 1, true);
-	comedi_8254_set_busy(dev->pacer, 2, true);
-
-	return 0;
-}
-
-static struct comedi_driver cb_pcimdas_driver = {
-	.driver_name	= "cb_pcimdas",
-	.module		= THIS_MODULE,
-	.auto_attach	= cb_pcimdas_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int cb_pcimdas_pci_probe(struct pci_dev *dev,
-				const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &cb_pcimdas_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id cb_pcimdas_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0056) },	/* PCIM-DAS1602/16 */
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0115) },	/* PCIe-DAS1602/16 */
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, cb_pcimdas_pci_table);
-
-static struct pci_driver cb_pcimdas_pci_driver = {
-	.name		= "cb_pcimdas",
-	.id_table	= cb_pcimdas_pci_table,
-	.probe		= cb_pcimdas_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(cb_pcimdas_driver, cb_pcimdas_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for PCIM-DAS1602/16 and PCIe-DAS1602/16");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c
deleted file mode 100644
index 19210d89f2b2..000000000000
--- a/drivers/staging/comedi/drivers/cb_pcimdda.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
-    comedi/drivers/cb_pcimdda.c
-    Computer Boards PCIM-DDA06-16 Comedi driver
-    Author: Calin Culianu <calin@ajvar.org>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: cb_pcimdda
-Description: Measurement Computing PCIM-DDA06-16
-Devices: [Measurement Computing] PCIM-DDA06-16 (cb_pcimdda)
-Author: Calin Culianu <calin@ajvar.org>
-Updated: Mon, 14 Apr 2008 15:15:51 +0100
-Status: works
-
-All features of the PCIM-DDA06-16 board are supported.  This board
-has 6 16-bit AO channels, and the usual 8255 DIO setup.  (24 channels,
-configurable in banks of 8 and 4, etc.).  This board does not support commands.
-
-The board has a peculiar way of specifying AO gain/range settings -- You have
-1 jumper bank on the card, which either makes all 6 AO channels either
-5 Volt unipolar, 5V bipolar, 10 Volt unipolar or 10V bipolar.
-
-Since there is absolutely _no_ way to tell in software how this jumper is set
-(well, at least according  to the rather thin spec. from Measurement Computing
- that comes with the board), the driver assumes the jumper is at its factory
-default setting of +/-5V.
-
-Also of note is the fact that this board features another jumper, whose
-state is also completely invisible to software.  It toggles two possible AO
-output modes on the board:
-
-  - Update Mode: Writing to an AO channel instantaneously updates the actual
-    signal output by the DAC on the board (this is the factory default).
-  - Simultaneous XFER Mode: Writing to an AO channel has no effect until
-    you read from any one of the AO channels.  This is useful for loading
-    all 6 AO values, and then reading from any one of the AO channels on the
-    device to instantly update all 6 AO values in unison.  Useful for some
-    control apps, I would assume?  If your jumper is in this setting, then you
-    need to issue your comedi_data_write()s to load all the values you want,
-    then issue one comedi_data_read() on any channel on the AO subdevice
-    to initiate the simultaneous XFER.
-
-Configuration Options: not applicable, uses PCI auto config
-*/
-
-/*
-    This is a driver for the Computer Boards PCIM-DDA06-16 Analog Output
-    card.  This board has a unique register layout and as such probably
-    deserves its own driver file.
-
-    It is theoretically possible to integrate this board into the cb_pcidda
-    file, but since that isn't my code, I didn't want to significantly
-    modify that file to support this board (I thought it impolite to do so).
-
-    At any rate, if you feel ambitious, please feel free to take
-    the code out of this file and combine it with a more unified driver
-    file.
-
-    I would like to thank Timothy Curry <Timothy.Curry@rdec.redstone.army.mil>
-    for lending me a board so that I could write this driver.
-
-    -Calin Culianu <calin@ajvar.org>
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-#include "8255.h"
-
-/* device ids of the cards we support -- currently only 1 card supported */
-#define PCI_ID_PCIM_DDA06_16		0x0053
-
-/*
- * Register map, 8-bit access only
- */
-#define PCIMDDA_DA_CHAN(x)		(0x00 + (x) * 2)
-#define PCIMDDA_8255_BASE_REG		0x0c
-
-static int cb_pcimdda_ao_insn_write(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned long offset = dev->iobase + PCIMDDA_DA_CHAN(chan);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		/*
-		 * Write the LSB then MSB.
-		 *
-		 * If the simultaneous xfer mode is selected by the
-		 * jumper on the card, a read instruction is needed
-		 * in order to initiate the simultaneous transfer.
-		 * Otherwise, the DAC will be updated when the MSB
-		 * is written.
-		 */
-		outb(val & 0x00ff, offset);
-		outb((val >> 8) & 0x00ff, offset + 1);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int cb_pcimdda_ao_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/* Initiate the simultaneous transfer */
-	inw(dev->iobase + PCIMDDA_DA_CHAN(chan));
-
-	return comedi_readback_insn_read(dev, s, insn, data);
-}
-
-static int cb_pcimdda_auto_attach(struct comedi_device *dev,
-				  unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 3);
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog output subdevice */
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= 6;
-	s->maxdata	= 0xffff;
-	s->range_table	= &range_bipolar5;
-	s->insn_write	= cb_pcimdda_ao_insn_write;
-	s->insn_read	= cb_pcimdda_ao_insn_read;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[1];
-	/* digital i/o subdevice */
-	return subdev_8255_init(dev, s, NULL, PCIMDDA_8255_BASE_REG);
-}
-
-static struct comedi_driver cb_pcimdda_driver = {
-	.driver_name	= "cb_pcimdda",
-	.module		= THIS_MODULE,
-	.auto_attach	= cb_pcimdda_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int cb_pcimdda_pci_probe(struct pci_dev *dev,
-				const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &cb_pcimdda_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id cb_pcimdda_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, PCI_ID_PCIM_DDA06_16) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, cb_pcimdda_pci_table);
-
-static struct pci_driver cb_pcimdda_driver_pci_driver = {
-	.name		= "cb_pcimdda",
-	.id_table	= cb_pcimdda_pci_table,
-	.probe		= cb_pcimdda_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(cb_pcimdda_driver, cb_pcimdda_driver_pci_driver);
-
-MODULE_AUTHOR("Calin A. Culianu <calin@rtlab.org>");
-MODULE_DESCRIPTION("Comedi low-level driver for the Computerboards PCIM-DDA "
-		   "series.  Currently only supports PCIM-DDA06-16 (which "
-		   "also happens to be the only board in this series. :) ) ");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_8254.c b/drivers/staging/comedi/drivers/comedi_8254.c
deleted file mode 100644
index 0d5d56b61f60..000000000000
--- a/drivers/staging/comedi/drivers/comedi_8254.c
+++ /dev/null
@@ -1,664 +0,0 @@
-/*
- * comedi_8254.c
- * Generic 8254 timer/counter support
- * Copyright (C) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * Based on 8253.h and various subdevice implementations in comedi drivers.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Module: comedi_8254
- * Description: Generic 8254 timer/counter support
- * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
- * Updated: Thu Jan 8 16:45:45 MST 2015
- * Status: works
- *
- * This module is not used directly by end-users. Rather, it is used by other
- * drivers to provide support for an 8254 Programmable Interval Timer. These
- * counters are typically used to generate the pacer clock used for data
- * acquisition. Some drivers also expose the counters for general purpose use.
- *
- * This module provides the following basic functions:
- *
- * comedi_8254_init() / comedi_8254_mm_init()
- *	Initializes this module to access the 8254 registers. The _mm version
- *	sets up the module for MMIO register access the other for PIO access.
- *	The pointer returned from these functions is normally stored in the
- *	comedi_device dev->pacer and will be freed by the comedi core during
- *	the driver (*detach). If a driver has multiple 8254 devices, they need
- *	to be stored in the drivers private data and freed when the driver is
- *	detached.
- *
- *	NOTE: The counters are reset by setting them to I8254_MODE0 as part of
- *	this initialization.
- *
- * comedi_8254_set_mode()
- *	Sets a counters operation mode:
- *		I8254_MODE0	Interrupt on terminal count
- *		I8254_MODE1	Hardware retriggerable one-shot
- *		I8254_MODE2	Rate generator
- *		I8254_MODE3	Square wave mode
- *		I8254_MODE4	Software triggered strobe
- *		I8254_MODE5	Hardware triggered strobe (retriggerable)
- *
- *	In addition I8254_BCD and I8254_BINARY specify the counting mode:
- *		I8254_BCD	BCD counting
- *		I8254_BINARY	Binary counting
- *
- * comedi_8254_write()
- *	Writes an initial value to a counter.
- *
- *	The largest possible initial count is 0; this is equivalent to 2^16
- *	for binary counting and 10^4 for BCD counting.
- *
- *	NOTE: The counter does not stop when it reaches zero. In Mode 0, 1, 4,
- *	and 5 the counter "wraps around" to the highest count, either 0xffff
- *	for binary counting or 9999 for BCD counting, and continues counting.
- *	Modes 2 and 3 are periodic; the counter reloads itself with the initial
- *	count and continues counting from there.
- *
- * comedi_8254_read()
- *	Reads the current value from a counter.
- *
- * comedi_8254_status()
- *	Reads the status of a counter.
- *
- * comedi_8254_load()
- *	Sets a counters operation mode and writes the initial value.
- *
- * Typically the pacer clock is created by cascading two of the 16-bit counters
- * to create a 32-bit rate generator (I8254_MODE2). These functions are
- * provided to handle the cascaded counters:
- *
- * comedi_8254_ns_to_timer()
- *	Calculates the divisor value needed for a single counter to generate
- *	ns timing.
- *
- * comedi_8254_cascade_ns_to_timer()
- *	Calculates the two divisor values needed to the generate the pacer
- *	clock (in ns).
- *
- * comedi_8254_update_divisors()
- *	Transfers the intermediate divisor values to the current divisors.
- *
- * comedi_8254_pacer_enable()
- *	Programs the mode of the cascaded counters and writes the current
- *	divisor values.
- *
- * To expose the counters as a subdevice for general purpose use the following
- * functions a provided:
- *
- * comedi_8254_subdevice_init()
- *	Initializes a comedi_subdevice to use the 8254 timer.
- *
- * comedi_8254_set_busy()
- *	Internally flags a counter as "busy". This is done to protect the
- *	counters that are used for the cascaded 32-bit pacer.
- *
- * The subdevice provides (*insn_read) and (*insn_write) operations to read
- * the current value and write an initial value to a counter. A (*insn_config)
- * operation is also provided to handle the following comedi instructions:
- *
- *	INSN_CONFIG_SET_COUNTER_MODE	calls comedi_8254_set_mode()
- *	INSN_CONFIG_8254_READ_STATUS	calls comedi_8254_status()
- *
- * The (*insn_config) member of comedi_8254 can be initialized by the external
- * driver to handle any additional instructions.
- *
- * NOTE: Gate control, clock routing, and any interrupt handling for the
- * counters is not handled by this module. These features are driver dependent.
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-
-#include "../comedidev.h"
-
-#include "comedi_8254.h"
-
-static unsigned int __i8254_read(struct comedi_8254 *i8254, unsigned int reg)
-{
-	unsigned int reg_offset = (reg * i8254->iosize) << i8254->regshift;
-	unsigned int val;
-
-	switch (i8254->iosize) {
-	default:
-	case I8254_IO8:
-		if (i8254->mmio)
-			val = readb(i8254->mmio + reg_offset);
-		else
-			val = inb(i8254->iobase + reg_offset);
-		break;
-	case I8254_IO16:
-		if (i8254->mmio)
-			val = readw(i8254->mmio + reg_offset);
-		else
-			val = inw(i8254->iobase + reg_offset);
-		break;
-	case I8254_IO32:
-		if (i8254->mmio)
-			val = readl(i8254->mmio + reg_offset);
-		else
-			val = inl(i8254->iobase + reg_offset);
-		break;
-	}
-	return val & 0xff;
-}
-
-static void __i8254_write(struct comedi_8254 *i8254,
-			  unsigned int val, unsigned int reg)
-{
-	unsigned int reg_offset = (reg * i8254->iosize) << i8254->regshift;
-
-	switch (i8254->iosize) {
-	default:
-	case I8254_IO8:
-		if (i8254->mmio)
-			writeb(val, i8254->mmio + reg_offset);
-		else
-			outb(val, i8254->iobase + reg_offset);
-		break;
-	case I8254_IO16:
-		if (i8254->mmio)
-			writew(val, i8254->mmio + reg_offset);
-		else
-			outw(val, i8254->iobase + reg_offset);
-		break;
-	case I8254_IO32:
-		if (i8254->mmio)
-			writel(val, i8254->mmio + reg_offset);
-		else
-			outl(val, i8254->iobase + reg_offset);
-		break;
-	}
-}
-
-/**
- * comedi_8254_status - return the status of a counter
- * @i8254:	comedi_8254 struct for the timer
- * @counter:	the counter number
- */
-unsigned int comedi_8254_status(struct comedi_8254 *i8254, unsigned int counter)
-{
-	unsigned int cmd;
-
-	if (counter > 2)
-		return 0;
-
-	cmd = I8254_CTRL_READBACK_STATUS | I8254_CTRL_READBACK_SEL_CTR(counter);
-	__i8254_write(i8254, cmd, I8254_CTRL_REG);
-
-	return __i8254_read(i8254, counter);
-}
-EXPORT_SYMBOL_GPL(comedi_8254_status);
-
-/**
- * comedi_8254_read - read the current counter value
- * @i8254:	comedi_8254 struct for the timer
- * @counter:	the counter number
- */
-unsigned int comedi_8254_read(struct comedi_8254 *i8254, unsigned int counter)
-{
-	unsigned int val;
-
-	if (counter > 2)
-		return 0;
-
-	/* latch counter */
-	__i8254_write(i8254, I8254_CTRL_SEL_CTR(counter) | I8254_CTRL_LATCH,
-		      I8254_CTRL_REG);
-
-	/* read LSB then MSB */
-	val = __i8254_read(i8254, counter);
-	val |= (__i8254_read(i8254, counter) << 8);
-
-	return val;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_read);
-
-/**
- * comedi_8254_write - load a 16-bit initial counter value
- * @i8254:	comedi_8254 struct for the timer
- * @counter:	the counter number
- * @val:	the initial value
- */
-void comedi_8254_write(struct comedi_8254 *i8254,
-		       unsigned int counter, unsigned int val)
-{
-	unsigned int byte;
-
-	if (counter > 2)
-		return;
-	if (val > 0xffff)
-		return;
-
-	/* load LSB then MSB */
-	byte = val & 0xff;
-	__i8254_write(i8254, byte, counter);
-	byte = (val >> 8) & 0xff;
-	__i8254_write(i8254, byte, counter);
-}
-EXPORT_SYMBOL_GPL(comedi_8254_write);
-
-/**
- * comedi_8254_set_mode - set the mode of a counter
- * @i8254:	comedi_8254 struct for the timer
- * @counter:	the counter number
- * @mode:	the I8254_MODEx and I8254_BCD|I8254_BINARY
- */
-int comedi_8254_set_mode(struct comedi_8254 *i8254, unsigned int counter,
-			 unsigned int mode)
-{
-	unsigned int byte;
-
-	if (counter > 2)
-		return -EINVAL;
-	if (mode > (I8254_MODE5 | I8254_BCD))
-		return -EINVAL;
-
-	byte = I8254_CTRL_SEL_CTR(counter) |	/* select counter */
-	       I8254_CTRL_LSB_MSB |		/* load LSB then MSB */
-	       mode;				/* mode and BCD|binary */
-	__i8254_write(i8254, byte, I8254_CTRL_REG);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_set_mode);
-
-/**
- * comedi_8254_load - program the mode and initial count of a counter
- * @i8254:	comedi_8254 struct for the timer
- * @counter:	the counter number
- * @mode:	the I8254_MODEx and I8254_BCD|I8254_BINARY
- * @val:	the initial value
- */
-int comedi_8254_load(struct comedi_8254 *i8254, unsigned int counter,
-		     unsigned int val, unsigned int mode)
-{
-	if (counter > 2)
-		return -EINVAL;
-	if (val > 0xffff)
-		return -EINVAL;
-	if (mode > (I8254_MODE5 | I8254_BCD))
-		return -EINVAL;
-
-	comedi_8254_set_mode(i8254, counter, mode);
-	comedi_8254_write(i8254, counter, val);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_load);
-
-/**
- * comedi_8254_pacer_enable - set the mode and load the cascaded counters
- * @i8254:	comedi_8254 struct for the timer
- * @counter1:	the counter number for the first divisor
- * @counter2:	the counter number for the second divisor
- * @enable:	flag to enable (load) the counters
- */
-void comedi_8254_pacer_enable(struct comedi_8254 *i8254,
-			      unsigned int counter1,
-			      unsigned int counter2,
-			      bool enable)
-{
-	unsigned int mode;
-
-	if (counter1 > 2 || counter2 > 2 || counter1 == counter2)
-		return;
-
-	if (enable)
-		mode = I8254_MODE2 | I8254_BINARY;
-	else
-		mode = I8254_MODE0 | I8254_BINARY;
-
-	comedi_8254_set_mode(i8254, counter1, mode);
-	comedi_8254_set_mode(i8254, counter2, mode);
-
-	if (enable) {
-		/*
-		 * Divisors are loaded second counter then first counter to
-		 * avoid possible issues with the first counter expiring
-		 * before the second counter is loaded.
-		 */
-		comedi_8254_write(i8254, counter2, i8254->divisor2);
-		comedi_8254_write(i8254, counter1, i8254->divisor1);
-	}
-}
-EXPORT_SYMBOL_GPL(comedi_8254_pacer_enable);
-
-/**
- * comedi_8254_update_divisors - update the divisors for the cascaded counters
- * @i8254:	comedi_8254 struct for the timer
- */
-void comedi_8254_update_divisors(struct comedi_8254 *i8254)
-{
-	/* masking is done since counter maps zero to 0x10000 */
-	i8254->divisor = i8254->next_div & 0xffff;
-	i8254->divisor1 = i8254->next_div1 & 0xffff;
-	i8254->divisor2 = i8254->next_div2 & 0xffff;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_update_divisors);
-
-/**
- * comedi_8254_cascade_ns_to_timer - calculate the cascaded divisor values
- * @i8254:	comedi_8254 struct for the timer
- * @nanosec:	the desired ns time
- * @flags:	comedi_cmd flags
- */
-void comedi_8254_cascade_ns_to_timer(struct comedi_8254 *i8254,
-				     unsigned int *nanosec,
-				     unsigned int flags)
-{
-	unsigned int d1 = i8254->next_div1 ? i8254->next_div1 : I8254_MAX_COUNT;
-	unsigned int d2 = i8254->next_div2 ? i8254->next_div2 : I8254_MAX_COUNT;
-	unsigned int div = d1 * d2;
-	unsigned int ns_lub = 0xffffffff;
-	unsigned int ns_glb = 0;
-	unsigned int d1_lub = 0;
-	unsigned int d1_glb = 0;
-	unsigned int d2_lub = 0;
-	unsigned int d2_glb = 0;
-	unsigned int start;
-	unsigned int ns;
-	unsigned int ns_low;
-	unsigned int ns_high;
-
-	/* exit early if everything is already correct */
-	if (div * i8254->osc_base == *nanosec &&
-	    d1 > 1 && d1 <= I8254_MAX_COUNT &&
-	    d2 > 1 && d2 <= I8254_MAX_COUNT &&
-	    /* check for overflow */
-	    div > d1 && div > d2 &&
-	    div * i8254->osc_base > div &&
-	    div * i8254->osc_base > i8254->osc_base)
-		return;
-
-	div = *nanosec / i8254->osc_base;
-	d2 = I8254_MAX_COUNT;
-	start = div / d2;
-	if (start < 2)
-		start = 2;
-	for (d1 = start; d1 <= div / d1 + 1 && d1 <= I8254_MAX_COUNT; d1++) {
-		for (d2 = div / d1;
-		     d1 * d2 <= div + d1 + 1 && d2 <= I8254_MAX_COUNT; d2++) {
-			ns = i8254->osc_base * d1 * d2;
-			if (ns <= *nanosec && ns > ns_glb) {
-				ns_glb = ns;
-				d1_glb = d1;
-				d2_glb = d2;
-			}
-			if (ns >= *nanosec && ns < ns_lub) {
-				ns_lub = ns;
-				d1_lub = d1;
-				d2_lub = d2;
-			}
-		}
-	}
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		ns_high = d1_lub * d2_lub * i8254->osc_base;
-		ns_low = d1_glb * d2_glb * i8254->osc_base;
-		if (ns_high - *nanosec < *nanosec - ns_low) {
-			d1 = d1_lub;
-			d2 = d2_lub;
-		} else {
-			d1 = d1_glb;
-			d2 = d2_glb;
-		}
-		break;
-	case CMDF_ROUND_UP:
-		d1 = d1_lub;
-		d2 = d2_lub;
-		break;
-	case CMDF_ROUND_DOWN:
-		d1 = d1_glb;
-		d2 = d2_glb;
-		break;
-	}
-
-	*nanosec = d1 * d2 * i8254->osc_base;
-	i8254->next_div1 = d1;
-	i8254->next_div2 = d2;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_cascade_ns_to_timer);
-
-/**
- * comedi_8254_ns_to_timer - calculate the divisor value for nanosec timing
- * @i8254:	comedi_8254 struct for the timer
- * @nanosec:	the desired ns time
- * @flags:	comedi_cmd flags
- */
-void comedi_8254_ns_to_timer(struct comedi_8254 *i8254,
-			     unsigned int *nanosec, unsigned int flags)
-{
-	unsigned int divisor;
-
-	switch (flags & CMDF_ROUND_MASK) {
-	default:
-	case CMDF_ROUND_NEAREST:
-		divisor = DIV_ROUND_CLOSEST(*nanosec, i8254->osc_base);
-		break;
-	case CMDF_ROUND_UP:
-		divisor = DIV_ROUND_UP(*nanosec, i8254->osc_base);
-		break;
-	case CMDF_ROUND_DOWN:
-		divisor = *nanosec / i8254->osc_base;
-		break;
-	}
-	if (divisor < 2)
-		divisor = 2;
-	if (divisor > I8254_MAX_COUNT)
-		divisor = I8254_MAX_COUNT;
-
-	*nanosec = divisor * i8254->osc_base;
-	i8254->next_div = divisor;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_ns_to_timer);
-
-/**
- * comedi_8254_set_busy - set/clear the "busy" flag for a given counter
- * @i8254:	comedi_8254 struct for the timer
- * @counter:	the counter number
- * @busy:	set/clear flag
- */
-void comedi_8254_set_busy(struct comedi_8254 *i8254,
-			  unsigned int counter, bool busy)
-{
-	if (counter < 3)
-		i8254->busy[counter] = busy;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_set_busy);
-
-static int comedi_8254_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct comedi_8254 *i8254 = s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	if (i8254->busy[chan])
-		return -EBUSY;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = comedi_8254_read(i8254, chan);
-
-	return insn->n;
-}
-
-static int comedi_8254_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct comedi_8254 *i8254 = s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	if (i8254->busy[chan])
-		return -EBUSY;
-
-	if (insn->n)
-		comedi_8254_write(i8254, chan, data[insn->n - 1]);
-
-	return insn->n;
-}
-
-static int comedi_8254_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct comedi_8254 *i8254 = s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int ret;
-
-	if (i8254->busy[chan])
-		return -EBUSY;
-
-	switch (data[0]) {
-	case INSN_CONFIG_RESET:
-		ret = comedi_8254_set_mode(i8254, chan,
-					   I8254_MODE0 | I8254_BINARY);
-		if (ret)
-			return ret;
-		break;
-	case INSN_CONFIG_SET_COUNTER_MODE:
-		ret = comedi_8254_set_mode(i8254, chan, data[1]);
-		if (ret)
-			return ret;
-		break;
-	case INSN_CONFIG_8254_READ_STATUS:
-		data[1] = comedi_8254_status(i8254, chan);
-		break;
-	default:
-		/*
-		 * If available, call the driver provided (*insn_config)
-		 * to handle any driver implemented instructions.
-		 */
-		if (i8254->insn_config)
-			return i8254->insn_config(dev, s, insn, data);
-
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-/**
- * comedi_8254_subdevice_init - initialize a comedi_subdevice for the 8254 timer
- * @s:		comedi_subdevice struct
- */
-void comedi_8254_subdevice_init(struct comedi_subdevice *s,
-				struct comedi_8254 *i8254)
-{
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 3;
-	s->maxdata	= 0xffff;
-	s->range_table	= &range_unknown;
-	s->insn_read	= comedi_8254_insn_read;
-	s->insn_write	= comedi_8254_insn_write;
-	s->insn_config	= comedi_8254_insn_config;
-
-	s->private	= i8254;
-}
-EXPORT_SYMBOL_GPL(comedi_8254_subdevice_init);
-
-static struct comedi_8254 *__i8254_init(unsigned long iobase,
-					void __iomem *mmio,
-					unsigned int osc_base,
-					unsigned int iosize,
-					unsigned int regshift)
-{
-	struct comedi_8254 *i8254;
-	int i;
-
-	/* sanity check that the iosize is valid */
-	if (!(iosize == I8254_IO8 || iosize == I8254_IO16 ||
-	      iosize == I8254_IO32))
-		return NULL;
-
-	i8254 = kzalloc(sizeof(*i8254), GFP_KERNEL);
-	if (!i8254)
-		return NULL;
-
-	i8254->iobase	= iobase;
-	i8254->mmio	= mmio;
-	i8254->iosize	= iosize;
-	i8254->regshift	= regshift;
-
-	/* default osc_base to the max speed of a generic 8254 timer */
-	i8254->osc_base	= osc_base ? osc_base : I8254_OSC_BASE_10MHZ;
-
-	/* reset all the counters by setting them to I8254_MODE0 */
-	for (i = 0; i < 3; i++)
-		comedi_8254_set_mode(i8254, i, I8254_MODE0 | I8254_BINARY);
-
-	return i8254;
-}
-
-/**
- * comedi_8254_init - allocate and initialize the 8254 device for pio access
- * @mmio:	port I/O base address
- * @osc_base:	base time of the counter in ns
- *		OPTIONAL - only used by comedi_8254_cascade_ns_to_timer()
- * @iosize:	I/O register size
- * @regshift:	register gap shift
- */
-struct comedi_8254 *comedi_8254_init(unsigned long iobase,
-				     unsigned int osc_base,
-				     unsigned int iosize,
-				     unsigned int regshift)
-{
-	return __i8254_init(iobase, NULL, osc_base, iosize, regshift);
-}
-EXPORT_SYMBOL_GPL(comedi_8254_init);
-
-/**
- * comedi_8254_mm_init - allocate and initialize the 8254 device for mmio access
- * @mmio:	memory mapped I/O base address
- * @osc_base:	base time of the counter in ns
- *		OPTIONAL - only used by comedi_8254_cascade_ns_to_timer()
- * @iosize:	I/O register size
- * @regshift:	register gap shift
- */
-struct comedi_8254 *comedi_8254_mm_init(void __iomem *mmio,
-					unsigned int osc_base,
-					unsigned int iosize,
-					unsigned int regshift)
-{
-	return __i8254_init(0, mmio, osc_base, iosize, regshift);
-}
-EXPORT_SYMBOL_GPL(comedi_8254_mm_init);
-
-static int __init comedi_8254_module_init(void)
-{
-	return 0;
-}
-module_init(comedi_8254_module_init);
-
-static void __exit comedi_8254_module_exit(void)
-{
-}
-module_exit(comedi_8254_module_exit);
-
-MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_DESCRIPTION("Comedi: Generic 8254 timer/counter support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_8254.h b/drivers/staging/comedi/drivers/comedi_8254.h
deleted file mode 100644
index f4610ead6172..000000000000
--- a/drivers/staging/comedi/drivers/comedi_8254.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * comedi_8254.h
- * Generic 8254 timer/counter support
- * Copyright (C) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _COMEDI_8254_H
-#define _COMEDI_8254_H
-
-#include <linux/types.h>
-
-struct comedi_device;
-struct comedi_insn;
-struct comedi_subdevice;
-
-/*
- * Common oscillator base values in nanoseconds
- */
-#define I8254_OSC_BASE_10MHZ	100
-#define I8254_OSC_BASE_5MHZ	200
-#define I8254_OSC_BASE_4MHZ	250
-#define I8254_OSC_BASE_2MHZ	500
-#define I8254_OSC_BASE_1MHZ	1000
-#define I8254_OSC_BASE_100KHZ	10000
-#define I8254_OSC_BASE_10KHZ	100000
-#define I8254_OSC_BASE_1KHZ	1000000
-
-/*
- * I/O access size used to read/write registers
- */
-#define I8254_IO8		1
-#define I8254_IO16		2
-#define I8254_IO32		4
-
-/*
- * Register map for generic 8254 timer (I8254_IO8 with 0 regshift)
- */
-#define I8254_COUNTER0_REG		0x00
-#define I8254_COUNTER1_REG		0x01
-#define I8254_COUNTER2_REG		0x02
-#define I8254_CTRL_REG			0x03
-#define I8254_CTRL_SEL_CTR(x)		((x) << 6)
-#define I8254_CTRL_READBACK_COUNT	((3 << 6) | (1 << 4))
-#define I8254_CTRL_READBACK_STATUS	((3 << 6) | (1 << 5))
-#define I8254_CTRL_READBACK_SEL_CTR(x)	(2 << (x))
-#define I8254_CTRL_LATCH		(0 << 4)
-#define I8254_CTRL_LSB_ONLY		(1 << 4)
-#define I8254_CTRL_MSB_ONLY		(2 << 4)
-#define I8254_CTRL_LSB_MSB		(3 << 4)
-
-/* counter maps zero to 0x10000 */
-#define I8254_MAX_COUNT			0x10000
-
-/**
- * struct comedi_8254 - private data used by this module
- * @iobase:		PIO base address of the registers (in/out)
- * @mmio:		MMIO base address of the registers (read/write)
- * @iosize:		I/O size used to access the registers (b/w/l)
- * @regshift:		register gap shift
- * @osc_base:		cascaded oscillator speed in ns
- * @divisor:		divisor for single counter
- * @divisor1:		divisor loaded into first cascaded counter
- * @divisor2:		divisor loaded into second cascaded counter
- * #next_div:		next divisor for single counter
- * @next_div1:		next divisor to use for first cascaded counter
- * @next_div2:		next divisor to use for second cascaded counter
- * @clock_src;		current clock source for each counter (driver specific)
- * @gate_src;		current gate source  for each counter (driver specific)
- * @busy:		flags used to indicate that a counter is "busy"
- * @insn_config:	driver specific (*insn_config) callback
- */
-struct comedi_8254 {
-	unsigned long iobase;
-	void __iomem *mmio;
-	unsigned int iosize;
-	unsigned int regshift;
-	unsigned int osc_base;
-	unsigned int divisor;
-	unsigned int divisor1;
-	unsigned int divisor2;
-	unsigned int next_div;
-	unsigned int next_div1;
-	unsigned int next_div2;
-	unsigned int clock_src[3];
-	unsigned int gate_src[3];
-	bool busy[3];
-
-	int (*insn_config)(struct comedi_device *, struct comedi_subdevice *s,
-			   struct comedi_insn *, unsigned int *data);
-};
-
-unsigned int comedi_8254_status(struct comedi_8254 *, unsigned int counter);
-unsigned int comedi_8254_read(struct comedi_8254 *, unsigned int counter);
-void comedi_8254_write(struct comedi_8254 *,
-		       unsigned int counter, unsigned int val);
-
-int comedi_8254_set_mode(struct comedi_8254 *,
-			 unsigned int counter, unsigned int mode);
-int comedi_8254_load(struct comedi_8254 *,
-		     unsigned int counter, unsigned int val, unsigned int mode);
-
-void comedi_8254_pacer_enable(struct comedi_8254 *,
-			      unsigned int counter1, unsigned int counter2,
-			      bool enable);
-void comedi_8254_update_divisors(struct comedi_8254 *);
-void comedi_8254_cascade_ns_to_timer(struct comedi_8254 *,
-				     unsigned int *nanosec, unsigned int flags);
-void comedi_8254_ns_to_timer(struct comedi_8254 *,
-			     unsigned int *nanosec, unsigned int flags);
-
-void comedi_8254_set_busy(struct comedi_8254 *,
-			  unsigned int counter, bool busy);
-
-void comedi_8254_subdevice_init(struct comedi_subdevice *,
-				struct comedi_8254 *);
-
-struct comedi_8254 *comedi_8254_init(unsigned long iobase,
-				     unsigned int osc_base,
-				     unsigned int iosize,
-				     unsigned int regshift);
-struct comedi_8254 *comedi_8254_mm_init(void __iomem *mmio,
-					unsigned int osc_base,
-					unsigned int iosize,
-					unsigned int regshift);
-
-#endif	/* _COMEDI_8254_H */
diff --git a/drivers/staging/comedi/drivers/comedi_8255.c b/drivers/staging/comedi/drivers/comedi_8255.c
deleted file mode 100644
index b2441efc61cc..000000000000
--- a/drivers/staging/comedi/drivers/comedi_8255.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * comedi_8255.c
- * Generic 8255 digital I/O support
- *
- * Split from the Comedi "8255" driver module.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Module: comedi_8255
- * Description: Generic 8255 support
- * Author: ds
- * Updated: Fri, 22 May 2015 12:14:17 +0000
- * Status: works
- *
- * This module is not used directly by end-users.  Rather, it is used by
- * other drivers to provide support for an 8255 "Programmable Peripheral
- * Interface" (PPI) chip.
- *
- * The classic in digital I/O.  The 8255 appears in Comedi as a single
- * digital I/O subdevice with 24 channels.  The channel 0 corresponds to
- * the 8255's port A, bit 0; channel 23 corresponds to port C, bit 7.
- * Direction configuration is done in blocks, with channels 0-7, 8-15,
- * 16-19, and 20-23 making up the 4 blocks.  The only 8255 mode
- * supported is mode 0.
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include "8255.h"
-
-struct subdev_8255_private {
-	unsigned long regbase;
-	int (*io)(struct comedi_device *dev, int dir, int port, int data,
-		  unsigned long regbase);
-};
-
-static int subdev_8255_io(struct comedi_device *dev,
-			  int dir, int port, int data, unsigned long regbase)
-{
-	if (dir) {
-		outb(data, dev->iobase + regbase + port);
-		return 0;
-	}
-	return inb(dev->iobase + regbase + port);
-}
-
-static int subdev_8255_mmio(struct comedi_device *dev,
-			    int dir, int port, int data, unsigned long regbase)
-{
-	if (dir) {
-		writeb(data, dev->mmio + regbase + port);
-		return 0;
-	}
-	return readb(dev->mmio + regbase + port);
-}
-
-static int subdev_8255_insn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	struct subdev_8255_private *spriv = s->private;
-	unsigned long regbase = spriv->regbase;
-	unsigned int mask;
-	unsigned int v;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0xff)
-			spriv->io(dev, 1, I8255_DATA_A_REG,
-				  s->state & 0xff, regbase);
-		if (mask & 0xff00)
-			spriv->io(dev, 1, I8255_DATA_B_REG,
-				  (s->state >> 8) & 0xff, regbase);
-		if (mask & 0xff0000)
-			spriv->io(dev, 1, I8255_DATA_C_REG,
-				  (s->state >> 16) & 0xff, regbase);
-	}
-
-	v = spriv->io(dev, 0, I8255_DATA_A_REG, 0, regbase);
-	v |= (spriv->io(dev, 0, I8255_DATA_B_REG, 0, regbase) << 8);
-	v |= (spriv->io(dev, 0, I8255_DATA_C_REG, 0, regbase) << 16);
-
-	data[1] = v;
-
-	return insn->n;
-}
-
-static void subdev_8255_do_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	struct subdev_8255_private *spriv = s->private;
-	unsigned long regbase = spriv->regbase;
-	int config;
-
-	config = I8255_CTRL_CW;
-	/* 1 in io_bits indicates output, 1 in config indicates input */
-	if (!(s->io_bits & 0x0000ff))
-		config |= I8255_CTRL_A_IO;
-	if (!(s->io_bits & 0x00ff00))
-		config |= I8255_CTRL_B_IO;
-	if (!(s->io_bits & 0x0f0000))
-		config |= I8255_CTRL_C_LO_IO;
-	if (!(s->io_bits & 0xf00000))
-		config |= I8255_CTRL_C_HI_IO;
-
-	spriv->io(dev, 1, I8255_CTRL_REG, config, regbase);
-}
-
-static int subdev_8255_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x0000ff;
-	else if (chan < 16)
-		mask = 0x00ff00;
-	else if (chan < 20)
-		mask = 0x0f0000;
-	else
-		mask = 0xf00000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	subdev_8255_do_config(dev, s);
-
-	return insn->n;
-}
-
-static int __subdev_8255_init(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      int (*io)(struct comedi_device *dev,
-					int dir, int port, int data,
-					unsigned long regbase),
-			      unsigned long regbase,
-			      bool is_mmio)
-{
-	struct subdev_8255_private *spriv;
-
-	spriv = comedi_alloc_spriv(s, sizeof(*spriv));
-	if (!spriv)
-		return -ENOMEM;
-
-	if (io)
-		spriv->io = io;
-	else if (is_mmio)
-		spriv->io = subdev_8255_mmio;
-	else
-		spriv->io = subdev_8255_io;
-	spriv->regbase	= regbase;
-
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 24;
-	s->range_table	= &range_digital;
-	s->maxdata	= 1;
-	s->insn_bits	= subdev_8255_insn;
-	s->insn_config	= subdev_8255_insn_config;
-
-	subdev_8255_do_config(dev, s);
-
-	return 0;
-}
-
-/**
- * subdev_8255_init - initialize DIO subdevice for driving I/O mapped 8255
- * @dev: comedi device owning subdevice
- * @s: comedi subdevice to initialize
- * @io: (optional) register I/O call-back function
- * @regbase: offset of 8255 registers from dev->iobase, or call-back context
- *
- * Initializes a comedi subdevice as a DIO subdevice driving an 8255 chip.
- *
- * If the optional I/O call-back function is provided, its prototype is of
- * the following form:
- *
- *   int my_8255_callback(struct comedi_device *dev, int dir, int port,
- *                        int data, unsigned long regbase);
- *
- * where 'dev', and 'regbase' match the values passed to this function,
- * 'port' is the 8255 port number 0 to 3 (including the control port), 'dir'
- * is the direction (0 for read, 1 for write) and 'data' is the value to be
- * written.  It should return 0 if writing or the value read if reading.
- *
- * If the optional I/O call-back function is not provided, an internal
- * call-back function is used which uses consecutive I/O port addresses
- * starting at dev->iobase + regbase.
- *
- * Return: -ENOMEM if failed to allocate memory, zero on success.
- */
-int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s,
-		     int (*io)(struct comedi_device *dev, int dir, int port,
-			       int data, unsigned long regbase),
-		     unsigned long regbase)
-{
-	return __subdev_8255_init(dev, s, io, regbase, false);
-}
-EXPORT_SYMBOL_GPL(subdev_8255_init);
-
-/**
- * subdev_8255_mm_init - initialize DIO subdevice for driving mmio-mapped 8255
- * @dev: comedi device owning subdevice
- * @s: comedi subdevice to initialize
- * @io: (optional) register I/O call-back function
- * @regbase: offset of 8255 registers from dev->mmio, or call-back context
- *
- * Initializes a comedi subdevice as a DIO subdevice driving an 8255 chip.
- *
- * If the optional I/O call-back function is provided, its prototype is of
- * the following form:
- *
- *   int my_8255_callback(struct comedi_device *dev, int dir, int port,
- *                        int data, unsigned long regbase);
- *
- * where 'dev', and 'regbase' match the values passed to this function,
- * 'port' is the 8255 port number 0 to 3 (including the control port), 'dir'
- * is the direction (0 for read, 1 for write) and 'data' is the value to be
- * written.  It should return 0 if writing or the value read if reading.
- *
- * If the optional I/O call-back function is not provided, an internal
- * call-back function is used which uses consecutive MMIO virtual addresses
- * starting at dev->mmio + regbase.
- *
- * Return: -ENOMEM if failed to allocate memory, zero on success.
- */
-int subdev_8255_mm_init(struct comedi_device *dev, struct comedi_subdevice *s,
-			int (*io)(struct comedi_device *dev, int dir, int port,
-				  int data, unsigned long regbase),
-			unsigned long regbase)
-{
-	return __subdev_8255_init(dev, s, io, regbase, true);
-}
-EXPORT_SYMBOL_GPL(subdev_8255_mm_init);
-
-/**
- * subdev_8255_regbase - get offset of 8255 registers or call-back context
- * @s: comedi subdevice
- *
- * Returns the 'regbase' parameter that was previously passed to to
- * subdev_8255_init() or subdev_8255_mm_init() to set up the subdevice.
- * Only valid if the subdevice was set up successfully.
- */
-unsigned long subdev_8255_regbase(struct comedi_subdevice *s)
-{
-	struct subdev_8255_private *spriv = s->private;
-
-	return spriv->regbase;
-}
-EXPORT_SYMBOL_GPL(subdev_8255_regbase);
-
-static int __init comedi_8255_module_init(void)
-{
-	return 0;
-}
-module_init(comedi_8255_module_init);
-
-static void __exit comedi_8255_module_exit(void)
-{
-}
-module_exit(comedi_8255_module_exit);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi: Generic 8255 digital I/O support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_bond.c b/drivers/staging/comedi/drivers/comedi_bond.c
deleted file mode 100644
index 50b76eccb7d7..000000000000
--- a/drivers/staging/comedi/drivers/comedi_bond.c
+++ /dev/null
@@ -1,356 +0,0 @@
-/*
- * comedi_bond.c
- * A Comedi driver to 'bond' or merge multiple drivers and devices as one.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- * Copyright (C) 2005 Calin A. Culianu <calin@ajvar.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: comedi_bond
- * Description: A driver to 'bond' (merge) multiple subdevices from multiple
- * devices together as one.
- * Devices:
- * Author: ds
- * Updated: Mon, 10 Oct 00:18:25 -0500
- * Status: works
- *
- * This driver allows you to 'bond' (merge) multiple comedi subdevices
- * (coming from possibly difference boards and/or drivers) together.  For
- * example, if you had a board with 2 different DIO subdevices, and
- * another with 1 DIO subdevice, you could 'bond' them with this driver
- * so that they look like one big fat DIO subdevice.  This makes writing
- * applications slightly easier as you don't have to worry about managing
- * different subdevices in the application -- you just worry about
- * indexing one linear array of channel id's.
- *
- * Right now only DIO subdevices are supported as that's the personal itch
- * I am scratching with this driver.  If you want to add support for AI and AO
- * subdevs, go right on ahead and do so!
- *
- * Commands aren't supported -- although it would be cool if they were.
- *
- * Configuration Options:
- *   List of comedi-minors to bond.  All subdevices of the same type
- *   within each minor will be concatenated together in the order given here.
- */
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include "../comedi.h"
-#include "../comedilib.h"
-#include "../comedidev.h"
-
-struct bonded_device {
-	struct comedi_device *dev;
-	unsigned minor;
-	unsigned subdev;
-	unsigned nchans;
-};
-
-struct comedi_bond_private {
-	char name[256];
-	struct bonded_device **devs;
-	unsigned ndevs;
-	unsigned nchans;
-};
-
-static int bonding_dio_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	struct comedi_bond_private *devpriv = dev->private;
-	unsigned int n_left, n_done, base_chan;
-	unsigned int write_mask, data_bits;
-	struct bonded_device **devs;
-
-	write_mask = data[0];
-	data_bits = data[1];
-	base_chan = CR_CHAN(insn->chanspec);
-	/* do a maximum of 32 channels, starting from base_chan. */
-	n_left = devpriv->nchans - base_chan;
-	if (n_left > 32)
-		n_left = 32;
-
-	n_done = 0;
-	devs = devpriv->devs;
-	do {
-		struct bonded_device *bdev = *devs++;
-
-		if (base_chan < bdev->nchans) {
-			/* base channel falls within bonded device */
-			unsigned int b_chans, b_mask, b_write_mask, b_data_bits;
-			int ret;
-
-			/*
-			 * Get num channels to do for bonded device and set
-			 * up mask and data bits for bonded device.
-			 */
-			b_chans = bdev->nchans - base_chan;
-			if (b_chans > n_left)
-				b_chans = n_left;
-			b_mask = (b_chans < 32) ? ((1 << b_chans) - 1)
-						: 0xffffffff;
-			b_write_mask = (write_mask >> n_done) & b_mask;
-			b_data_bits = (data_bits >> n_done) & b_mask;
-			/* Read/Write the new digital lines. */
-			ret = comedi_dio_bitfield2(bdev->dev, bdev->subdev,
-						   b_write_mask, &b_data_bits,
-						   base_chan);
-			if (ret < 0)
-				return ret;
-			/* Place read bits into data[1]. */
-			data[1] &= ~(b_mask << n_done);
-			data[1] |= (b_data_bits & b_mask) << n_done;
-			/*
-			 * Set up for following bonded device (if still have
-			 * channels to read/write).
-			 */
-			base_chan = 0;
-			n_done += b_chans;
-			n_left -= b_chans;
-		} else {
-			/* Skip bonded devices before base channel. */
-			base_chan -= bdev->nchans;
-		}
-	} while (n_left);
-
-	return insn->n;
-}
-
-static int bonding_dio_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn, unsigned int *data)
-{
-	struct comedi_bond_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int ret;
-	struct bonded_device *bdev;
-	struct bonded_device **devs;
-
-	/*
-	 * Locate bonded subdevice and adjust channel.
-	 */
-	devs = devpriv->devs;
-	for (bdev = *devs++; chan >= bdev->nchans; bdev = *devs++)
-		chan -= bdev->nchans;
-
-	/*
-	 * The input or output configuration of each digital line is
-	 * configured by a special insn_config instruction.  chanspec
-	 * contains the channel to be changed, and data[0] contains the
-	 * configuration instruction INSN_CONFIG_DIO_OUTPUT,
-	 * INSN_CONFIG_DIO_INPUT or INSN_CONFIG_DIO_QUERY.
-	 *
-	 * Note that INSN_CONFIG_DIO_OUTPUT == COMEDI_OUTPUT,
-	 * and INSN_CONFIG_DIO_INPUT == COMEDI_INPUT.  This is deliberate ;)
-	 */
-	switch (data[0]) {
-	case INSN_CONFIG_DIO_OUTPUT:
-	case INSN_CONFIG_DIO_INPUT:
-		ret = comedi_dio_config(bdev->dev, bdev->subdev, chan, data[0]);
-		break;
-	case INSN_CONFIG_DIO_QUERY:
-		ret = comedi_dio_get_config(bdev->dev, bdev->subdev, chan,
-					    &data[1]);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-	if (ret >= 0)
-		ret = insn->n;
-	return ret;
-}
-
-static int do_dev_config(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct comedi_bond_private *devpriv = dev->private;
-	DECLARE_BITMAP(devs_opened, COMEDI_NUM_BOARD_MINORS);
-	int i;
-
-	memset(&devs_opened, 0, sizeof(devs_opened));
-	devpriv->name[0] = 0;
-	/*
-	 * Loop through all comedi devices specified on the command-line,
-	 * building our device list.
-	 */
-	for (i = 0; i < COMEDI_NDEVCONFOPTS && (!i || it->options[i]); ++i) {
-		char file[sizeof("/dev/comediXXXXXX")];
-		int minor = it->options[i];
-		struct comedi_device *d;
-		int sdev = -1, nchans;
-		struct bonded_device *bdev;
-		struct bonded_device **devs;
-
-		if (minor < 0 || minor >= COMEDI_NUM_BOARD_MINORS) {
-			dev_err(dev->class_dev,
-				"Minor %d is invalid!\n", minor);
-			return -EINVAL;
-		}
-		if (minor == dev->minor) {
-			dev_err(dev->class_dev,
-				"Cannot bond this driver to itself!\n");
-			return -EINVAL;
-		}
-		if (test_and_set_bit(minor, devs_opened)) {
-			dev_err(dev->class_dev,
-				"Minor %d specified more than once!\n", minor);
-			return -EINVAL;
-		}
-
-		snprintf(file, sizeof(file), "/dev/comedi%d", minor);
-		file[sizeof(file) - 1] = 0;
-
-		d = comedi_open(file);
-
-		if (!d) {
-			dev_err(dev->class_dev,
-				"Minor %u could not be opened\n", minor);
-			return -ENODEV;
-		}
-
-		/* Do DIO, as that's all we support now.. */
-		while ((sdev = comedi_find_subdevice_by_type(d, COMEDI_SUBD_DIO,
-							     sdev + 1)) > -1) {
-			nchans = comedi_get_n_channels(d, sdev);
-			if (nchans <= 0) {
-				dev_err(dev->class_dev,
-					"comedi_get_n_channels() returned %d on minor %u subdev %d!\n",
-					nchans, minor, sdev);
-				return -EINVAL;
-			}
-			bdev = kmalloc(sizeof(*bdev), GFP_KERNEL);
-			if (!bdev)
-				return -ENOMEM;
-
-			bdev->dev = d;
-			bdev->minor = minor;
-			bdev->subdev = sdev;
-			bdev->nchans = nchans;
-			devpriv->nchans += nchans;
-
-			/*
-			 * Now put bdev pointer at end of devpriv->devs array
-			 * list..
-			 */
-
-			/* ergh.. ugly.. we need to realloc :(  */
-			devs = krealloc(devpriv->devs,
-					(devpriv->ndevs + 1) * sizeof(*devs),
-					GFP_KERNEL);
-			if (!devs) {
-				dev_err(dev->class_dev,
-					"Could not allocate memory. Out of memory?\n");
-				kfree(bdev);
-				return -ENOMEM;
-			}
-			devpriv->devs = devs;
-			devpriv->devs[devpriv->ndevs++] = bdev;
-			{
-				/* Append dev:subdev to devpriv->name */
-				char buf[20];
-
-				snprintf(buf, sizeof(buf), "%u:%u ",
-					 bdev->minor, bdev->subdev);
-				strlcat(devpriv->name, buf,
-					sizeof(devpriv->name));
-			}
-		}
-	}
-
-	if (!devpriv->nchans) {
-		dev_err(dev->class_dev, "No channels found!\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int bonding_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct comedi_bond_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	/*
-	 * Setup our bonding from config params.. sets up our private struct..
-	 */
-	ret = do_dev_config(dev, it);
-	if (ret)
-		return ret;
-
-	dev->board_name = devpriv->name;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = devpriv->nchans;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = bonding_dio_insn_bits;
-	s->insn_config = bonding_dio_insn_config;
-
-	dev_info(dev->class_dev,
-		 "%s: %s attached, %u channels from %u devices\n",
-		 dev->driver->driver_name, dev->board_name,
-		 devpriv->nchans, devpriv->ndevs);
-
-	return 0;
-}
-
-static void bonding_detach(struct comedi_device *dev)
-{
-	struct comedi_bond_private *devpriv = dev->private;
-
-	if (devpriv && devpriv->devs) {
-		DECLARE_BITMAP(devs_closed, COMEDI_NUM_BOARD_MINORS);
-
-		memset(&devs_closed, 0, sizeof(devs_closed));
-		while (devpriv->ndevs--) {
-			struct bonded_device *bdev;
-
-			bdev = devpriv->devs[devpriv->ndevs];
-			if (!bdev)
-				continue;
-			if (!test_and_set_bit(bdev->minor, devs_closed))
-				comedi_close(bdev->dev);
-			kfree(bdev);
-		}
-		kfree(devpriv->devs);
-		devpriv->devs = NULL;
-	}
-}
-
-static struct comedi_driver bonding_driver = {
-	.driver_name	= "comedi_bond",
-	.module		= THIS_MODULE,
-	.attach		= bonding_attach,
-	.detach		= bonding_detach,
-};
-module_comedi_driver(bonding_driver);
-
-MODULE_AUTHOR("Calin A. Culianu");
-MODULE_DESCRIPTION("comedi_bond: A driver for COMEDI to bond multiple COMEDI devices together as one.");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_isadma.c b/drivers/staging/comedi/drivers/comedi_isadma.c
deleted file mode 100644
index 6ba71d114a95..000000000000
--- a/drivers/staging/comedi/drivers/comedi_isadma.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- * COMEDI ISA DMA support functions
- * Copyright (c) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <asm/dma.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-
-/**
- * comedi_isadma_program - program and enable an ISA DMA transfer
- * @desc:	the ISA DMA cookie to program and enable
- */
-void comedi_isadma_program(struct comedi_isadma_desc *desc)
-{
-	unsigned long flags;
-
-	flags = claim_dma_lock();
-	clear_dma_ff(desc->chan);
-	set_dma_mode(desc->chan, desc->mode);
-	set_dma_addr(desc->chan, desc->hw_addr);
-	set_dma_count(desc->chan, desc->size);
-	enable_dma(desc->chan);
-	release_dma_lock(flags);
-}
-EXPORT_SYMBOL_GPL(comedi_isadma_program);
-
-/**
- * comedi_isadma_disable - disable the ISA DMA channel
- * @dma_chan:	the DMA channel to disable
- *
- * Returns the residue (remaining bytes) left in the DMA transfer.
- */
-unsigned int comedi_isadma_disable(unsigned int dma_chan)
-{
-	unsigned long flags;
-	unsigned int residue;
-
-	flags = claim_dma_lock();
-	disable_dma(dma_chan);
-	residue = get_dma_residue(dma_chan);
-	release_dma_lock(flags);
-
-	return residue;
-}
-EXPORT_SYMBOL_GPL(comedi_isadma_disable);
-
-/**
- * comedi_isadma_disable_on_sample - disable the ISA DMA channel
- * @dma_chan:	the DMA channel to disable
- * @size:	the sample size (in bytes)
- *
- * Returns the residue (remaining bytes) left in the DMA transfer.
- */
-unsigned int comedi_isadma_disable_on_sample(unsigned int dma_chan,
-					     unsigned int size)
-{
-	int stalled = 0;
-	unsigned long flags;
-	unsigned int residue;
-	unsigned int new_residue;
-
-	residue = comedi_isadma_disable(dma_chan);
-	while (residue % size) {
-		/* residue is a partial sample, enable DMA to allow more data */
-		flags = claim_dma_lock();
-		enable_dma(dma_chan);
-		release_dma_lock(flags);
-
-		udelay(2);
-		new_residue = comedi_isadma_disable(dma_chan);
-
-		/* is DMA stalled? */
-		if (new_residue == residue) {
-			stalled++;
-			if (stalled > 10)
-				break;
-		} else {
-			residue = new_residue;
-			stalled = 0;
-		}
-	}
-	return residue;
-}
-EXPORT_SYMBOL_GPL(comedi_isadma_disable_on_sample);
-
-/**
- * comedi_isadma_poll - poll the current DMA transfer
- * @dma:	the ISA DMA to poll
- *
- * Returns the position (in bytes) of the current DMA transfer.
- */
-unsigned int comedi_isadma_poll(struct comedi_isadma *dma)
-{
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned long flags;
-	unsigned int result;
-	unsigned int result1;
-
-	flags = claim_dma_lock();
-	clear_dma_ff(desc->chan);
-	if (!isa_dma_bridge_buggy)
-		disable_dma(desc->chan);
-	result = get_dma_residue(desc->chan);
-	/*
-	 * Read the counter again and choose higher value in order to
-	 * avoid reading during counter lower byte roll over if the
-	 * isa_dma_bridge_buggy is set.
-	 */
-	result1 = get_dma_residue(desc->chan);
-	if (!isa_dma_bridge_buggy)
-		enable_dma(desc->chan);
-	release_dma_lock(flags);
-
-	if (result < result1)
-		result = result1;
-	if (result >= desc->size || result == 0)
-		return 0;
-	else
-		return desc->size - result;
-}
-EXPORT_SYMBOL_GPL(comedi_isadma_poll);
-
-/**
- * comedi_isadma_set_mode - set the ISA DMA transfer direction
- * @desc:	the ISA DMA cookie to set
- * @dma_dir:	the DMA direction
- */
-void comedi_isadma_set_mode(struct comedi_isadma_desc *desc, char dma_dir)
-{
-	desc->mode = (dma_dir == COMEDI_ISADMA_READ) ? DMA_MODE_READ
-						     : DMA_MODE_WRITE;
-}
-EXPORT_SYMBOL_GPL(comedi_isadma_set_mode);
-
-/**
- * comedi_isadma_alloc - allocate and initialize the ISA DMA
- * @dev:	comedi_device struct
- * @n_desc:	the number of cookies to allocate
- * @dma_chan:	DMA channel for the first cookie
- * @dma_chan2:	DMA channel for the second cookie
- * @maxsize:	the size of the buffer to allocate for each cookie
- * @dma_dir:	the DMA direction
- *
- * Returns the allocated and initialized ISA DMA or NULL if anything fails.
- */
-struct comedi_isadma *comedi_isadma_alloc(struct comedi_device *dev,
-					  int n_desc, unsigned int dma_chan1,
-					  unsigned int dma_chan2,
-					  unsigned int maxsize, char dma_dir)
-{
-	struct comedi_isadma *dma = NULL;
-	struct comedi_isadma_desc *desc;
-	unsigned int dma_chans[2];
-	int i;
-
-	if (n_desc < 1 || n_desc > 2)
-		goto no_dma;
-
-	dma = kzalloc(sizeof(*dma), GFP_KERNEL);
-	if (!dma)
-		goto no_dma;
-
-	desc = kcalloc(n_desc, sizeof(*desc), GFP_KERNEL);
-	if (!desc)
-		goto no_dma;
-	dma->desc = desc;
-	dma->n_desc = n_desc;
-
-	dma_chans[0] = dma_chan1;
-	if (dma_chan2 == 0 || dma_chan2 == dma_chan1)
-		dma_chans[1] = dma_chan1;
-	else
-		dma_chans[1] = dma_chan2;
-
-	if (request_dma(dma_chans[0], dev->board_name))
-		goto no_dma;
-	dma->chan = dma_chans[0];
-	if (dma_chans[1] != dma_chans[0]) {
-		if (request_dma(dma_chans[1], dev->board_name))
-			goto no_dma;
-	}
-	dma->chan2 = dma_chans[1];
-
-	for (i = 0; i < n_desc; i++) {
-		desc = &dma->desc[i];
-		desc->chan = dma_chans[i];
-		desc->maxsize = maxsize;
-		desc->virt_addr = dma_alloc_coherent(NULL, desc->maxsize,
-						     &desc->hw_addr,
-						     GFP_KERNEL);
-		if (!desc->virt_addr)
-			goto no_dma;
-		comedi_isadma_set_mode(desc, dma_dir);
-	}
-
-	return dma;
-
-no_dma:
-	comedi_isadma_free(dma);
-	return NULL;
-}
-EXPORT_SYMBOL_GPL(comedi_isadma_alloc);
-
-/**
- * comedi_isadma_free - free the ISA DMA
- * @dma:	the ISA DMA to free
- */
-void comedi_isadma_free(struct comedi_isadma *dma)
-{
-	struct comedi_isadma_desc *desc;
-	int i;
-
-	if (!dma)
-		return;
-
-	if (dma->desc) {
-		for (i = 0; i < dma->n_desc; i++) {
-			desc = &dma->desc[i];
-			if (desc->virt_addr)
-				dma_free_coherent(NULL, desc->maxsize,
-						  desc->virt_addr,
-						  desc->hw_addr);
-		}
-		kfree(dma->desc);
-	}
-	if (dma->chan2 && dma->chan2 != dma->chan)
-		free_dma(dma->chan2);
-	if (dma->chan)
-		free_dma(dma->chan);
-	kfree(dma);
-}
-EXPORT_SYMBOL_GPL(comedi_isadma_free);
-
-static int __init comedi_isadma_init(void)
-{
-	return 0;
-}
-module_init(comedi_isadma_init);
-
-static void __exit comedi_isadma_exit(void)
-{
-}
-module_exit(comedi_isadma_exit);
-
-MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_DESCRIPTION("Comedi ISA DMA support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_isadma.h b/drivers/staging/comedi/drivers/comedi_isadma.h
deleted file mode 100644
index 2fb6573ba9e4..000000000000
--- a/drivers/staging/comedi/drivers/comedi_isadma.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * COMEDI ISA DMA support functions
- * Copyright (c) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _COMEDI_ISADMA_H
-#define _COMEDI_ISADMA_H
-
-#include <linux/types.h>
-
-struct comedi_device;
-
-/*
- * These are used to avoid issues when <asm/dma.h> and the DMA_MODE_
- * defines are not available.
- */
-#define COMEDI_ISADMA_READ	0
-#define COMEDI_ISADMA_WRITE	1
-
-/**
- * struct comedi_isadma_desc - cookie for ISA DMA
- * @virt_addr:	virtual address of buffer
- * @hw_addr:	hardware (bus) address of buffer
- * @chan:	DMA channel
- * @maxsize:	allocated size of buffer (in bytes)
- * @size:	transfer size (in bytes)
- * @mode:	DMA_MODE_READ or DMA_MODE_WRITE
- */
-struct comedi_isadma_desc {
-	void *virt_addr;
-	dma_addr_t hw_addr;
-	unsigned int chan;
-	unsigned int maxsize;
-	unsigned int size;
-	char mode;
-};
-
-/**
- * struct comedi_isadma - ISA DMA data
- * @desc:	cookie for each DMA buffer
- * @n_desc:	the number of cookies
- * @cur_dma:	the current cookie in use
- * @chan:	the first DMA channel requested
- * @chan2:	the second DMA channel requested
- */
-struct comedi_isadma {
-	struct comedi_isadma_desc *desc;
-	int n_desc;
-	int cur_dma;
-	unsigned int chan;
-	unsigned int chan2;
-};
-
-#if IS_ENABLED(CONFIG_ISA_DMA_API)
-
-void comedi_isadma_program(struct comedi_isadma_desc *);
-unsigned int comedi_isadma_disable(unsigned int dma_chan);
-unsigned int comedi_isadma_disable_on_sample(unsigned int dma_chan,
-					     unsigned int size);
-unsigned int comedi_isadma_poll(struct comedi_isadma *);
-void comedi_isadma_set_mode(struct comedi_isadma_desc *, char dma_dir);
-
-struct comedi_isadma *comedi_isadma_alloc(struct comedi_device *,
-					  int n_desc, unsigned int dma_chan1,
-					  unsigned int dma_chan2,
-					  unsigned int maxsize, char dma_dir);
-void comedi_isadma_free(struct comedi_isadma *);
-
-#else	/* !IS_ENABLED(CONFIG_ISA_DMA_API) */
-
-static inline void comedi_isadma_program(struct comedi_isadma_desc *desc)
-{
-}
-
-static inline unsigned int comedi_isadma_disable(unsigned int dma_chan)
-{
-	return 0;
-}
-
-static inline unsigned int
-comedi_isadma_disable_on_sample(unsigned int dma_chan, unsigned int size)
-{
-	return 0;
-}
-
-static inline unsigned int comedi_isadma_poll(struct comedi_isadma *dma)
-{
-	return 0;
-}
-
-static inline void comedi_isadma_set_mode(struct comedi_isadma_desc *desc,
-					  char dma_dir)
-{
-}
-
-static inline struct comedi_isadma *
-comedi_isadma_alloc(struct comedi_device *dev, int n_desc,
-		    unsigned int dma_chan1, unsigned int dma_chan2,
-		    unsigned int maxsize, char dma_dir)
-{
-	return NULL;
-}
-
-static inline void comedi_isadma_free(struct comedi_isadma *dma)
-{
-}
-
-#endif	/* !IS_ENABLED(CONFIG_ISA_DMA_API) */
-
-#endif	/* #ifndef _COMEDI_ISADMA_H */
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
deleted file mode 100644
index 15a4093efda1..000000000000
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/*
- * comedi_parport.c
- * Comedi driver for standard parallel port
- *
- * For more information see:
- *	http://retired.beyondlogic.org/spp/parallel.htm
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998,2001 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: comedi_parport
- * Description: Standard PC parallel port
- * Author: ds
- * Status: works in immediate mode
- * Devices: [standard] parallel port (comedi_parport)
- * Updated: Tue, 30 Apr 2002 21:11:45 -0700
- *
- * A cheap and easy way to get a few more digital I/O lines. Steal
- * additional parallel ports from old computers or your neighbors'
- * computers.
- *
- * Option list:
- *   0: I/O port base for the parallel port.
- *   1: IRQ (optional)
- *
- * Parallel Port Lines:
- *
- *	 pin   subdev  chan  type  name
- *	-----  ------  ----  ----  --------------
- *	  1      2       0    DO   strobe
- *	  2      0       0    DIO  data 0
- *	  3      0       1    DIO  data 1
- *	  4      0       2    DIO  data 2
- *	  5      0       3    DIO  data 3
- *	  6      0       4    DIO  data 4
- *	  7      0       5    DIO  data 5
- *	  8      0       6    DIO  data 6
- *	  9      0       7    DIO  data 7
- *	 10      1       3    DI   ack
- *	 11      1       4    DI   busy
- *	 12      1       2    DI   paper out
- *	 13      1       1    DI   select in
- *	 14      2       1    DO   auto LF
- *	 15      1       0    DI   error
- *	 16      2       2    DO   init
- *	 17      2       3    DO   select printer
- *	18-25                      ground
- *
- * When an IRQ is configured subdevice 3 pretends to be a digital
- * input subdevice, but it always returns 0 when read. However, if
- * you run a command with scan_begin_src=TRIG_EXT, it uses pin 10
- * as a external trigger, which can be used to wake up tasks.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-/*
- * Register map
- */
-#define PARPORT_DATA_REG	0x00
-#define PARPORT_STATUS_REG	0x01
-#define PARPORT_CTRL_REG	0x02
-#define PARPORT_CTRL_IRQ_ENA	(1 << 4)
-#define PARPORT_CTRL_BIDIR_ENA	(1 << 5)
-
-static int parport_data_reg_insn_bits(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + PARPORT_DATA_REG);
-
-	data[1] = inb(dev->iobase + PARPORT_DATA_REG);
-
-	return insn->n;
-}
-
-static int parport_data_reg_insn_config(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	unsigned int ctrl;
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0xff);
-	if (ret)
-		return ret;
-
-	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
-	if (s->io_bits)
-		ctrl &= ~PARPORT_CTRL_BIDIR_ENA;
-	else
-		ctrl |= PARPORT_CTRL_BIDIR_ENA;
-	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
-
-	return insn->n;
-}
-
-static int parport_status_reg_insn_bits(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	data[1] = inb(dev->iobase + PARPORT_STATUS_REG) >> 3;
-
-	return insn->n;
-}
-
-static int parport_ctrl_reg_insn_bits(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	unsigned int ctrl;
-
-	if (comedi_dio_update_state(s, data)) {
-		ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
-		ctrl &= (PARPORT_CTRL_IRQ_ENA | PARPORT_CTRL_BIDIR_ENA);
-		ctrl |= s->state;
-		outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int parport_intr_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	data[1] = 0;
-	return insn->n;
-}
-
-static int parport_intr_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int parport_intr_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	unsigned int ctrl;
-
-	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
-	ctrl |= PARPORT_CTRL_IRQ_ENA;
-	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
-
-	return 0;
-}
-
-static int parport_intr_cancel(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	unsigned int ctrl;
-
-	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
-	ctrl &= ~PARPORT_CTRL_IRQ_ENA;
-	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
-
-	return 0;
-}
-
-static irqreturn_t parport_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int ctrl;
-
-	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
-	if (!(ctrl & PARPORT_CTRL_IRQ_ENA))
-		return IRQ_NONE;
-
-	comedi_buf_write_samples(s, &s->state, 1);
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int parport_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x03);
-	if (ret)
-		return ret;
-
-	if (it->options[1]) {
-		ret = request_irq(it->options[1], parport_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	ret = comedi_alloc_subdevices(dev, dev->irq ? 4 : 3);
-	if (ret)
-		return ret;
-
-	/* Digial I/O subdevice - Parallel port DATA register */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= parport_data_reg_insn_bits;
-	s->insn_config	= parport_data_reg_insn_config;
-
-	/* Digial Input subdevice - Parallel port STATUS register */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 5;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= parport_status_reg_insn_bits;
-
-	/* Digial Output subdevice - Parallel port CONTROL register */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= parport_ctrl_reg_insn_bits;
-
-	if (dev->irq) {
-		/* Digial Input subdevice - Interrupt support */
-		s = &dev->subdevices[3];
-		dev->read_subdev = s;
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
-		s->n_chan	= 1;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= parport_intr_insn_bits;
-		s->len_chanlist	= 1;
-		s->do_cmdtest	= parport_intr_cmdtest;
-		s->do_cmd	= parport_intr_cmd;
-		s->cancel	= parport_intr_cancel;
-	}
-
-	outb(0, dev->iobase + PARPORT_DATA_REG);
-	outb(0, dev->iobase + PARPORT_CTRL_REG);
-
-	return 0;
-}
-
-static struct comedi_driver parport_driver = {
-	.driver_name	= "comedi_parport",
-	.module		= THIS_MODULE,
-	.attach		= parport_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(parport_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi: Standard parallel port driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
deleted file mode 100644
index 80d613c0fbc6..000000000000
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ /dev/null
@@ -1,456 +0,0 @@
-/*
-    comedi/drivers/comedi_test.c
-
-    Generates fake waveform signals that can be read through
-    the command interface.  It does _not_ read from any board;
-    it just generates deterministic waveforms.
-    Useful for various testing purposes.
-
-    Copyright (C) 2002 Joachim Wuttke <Joachim.Wuttke@icn.siemens.de>
-    Copyright (C) 2002 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: comedi_test
-Description: generates fake waveforms
-Author: Joachim Wuttke <Joachim.Wuttke@icn.siemens.de>, Frank Mori Hess
-  <fmhess@users.sourceforge.net>, ds
-Devices:
-Status: works
-Updated: Sat, 16 Mar 2002 17:34:48 -0800
-
-This driver is mainly for testing purposes, but can also be used to
-generate sample waveforms on systems that don't have data acquisition
-hardware.
-
-Configuration options:
-  [0] - Amplitude in microvolts for fake waveforms (default 1 volt)
-  [1] - Period in microseconds for fake waveforms (default 0.1 sec)
-
-Generates a sawtooth wave on channel 0, square wave on channel 1, additional
-waveforms could be added to other channels (currently they return flatline
-zero volts).
-
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include <asm/div64.h>
-
-#include <linux/timer.h>
-#include <linux/ktime.h>
-
-#define N_CHANS 8
-
-enum waveform_state_bits {
-	WAVEFORM_AI_RUNNING = 0
-};
-
-/* Data unique to this driver */
-struct waveform_private {
-	struct timer_list timer;
-	ktime_t last;	/* time last timer interrupt occurred */
-	unsigned int uvolt_amplitude;	/* waveform amplitude in microvolts */
-	unsigned long usec_period;	/* waveform period in microseconds */
-	unsigned long usec_current;	/* current time (mod waveform period) */
-	unsigned long usec_remainder;	/* usec since last scan */
-	unsigned long state_bits;
-	unsigned int scan_period;	/* scan period in usec */
-	unsigned int convert_period;	/* conversion period in usec */
-	unsigned int ao_loopbacks[N_CHANS];
-};
-
-/* 1000 nanosec in a microsec */
-static const int nano_per_micro = 1000;
-
-/* fake analog input ranges */
-static const struct comedi_lrange waveform_ai_ranges = {
-	2, {
-		BIP_RANGE(10),
-		BIP_RANGE(5)
-	}
-};
-
-static unsigned short fake_sawtooth(struct comedi_device *dev,
-				    unsigned int range_index,
-				    unsigned long current_time)
-{
-	struct waveform_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int offset = s->maxdata / 2;
-	u64 value;
-	const struct comedi_krange *krange =
-	    &s->range_table->range[range_index];
-	u64 binary_amplitude;
-
-	binary_amplitude = s->maxdata;
-	binary_amplitude *= devpriv->uvolt_amplitude;
-	do_div(binary_amplitude, krange->max - krange->min);
-
-	current_time %= devpriv->usec_period;
-	value = current_time;
-	value *= binary_amplitude * 2;
-	do_div(value, devpriv->usec_period);
-	value -= binary_amplitude;	/* get rid of sawtooth's dc offset */
-
-	return offset + value;
-}
-
-static unsigned short fake_squarewave(struct comedi_device *dev,
-				      unsigned int range_index,
-				      unsigned long current_time)
-{
-	struct waveform_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int offset = s->maxdata / 2;
-	u64 value;
-	const struct comedi_krange *krange =
-	    &s->range_table->range[range_index];
-	current_time %= devpriv->usec_period;
-
-	value = s->maxdata;
-	value *= devpriv->uvolt_amplitude;
-	do_div(value, krange->max - krange->min);
-
-	if (current_time < devpriv->usec_period / 2)
-		value *= -1;
-
-	return offset + value;
-}
-
-static unsigned short fake_flatline(struct comedi_device *dev,
-				    unsigned int range_index,
-				    unsigned long current_time)
-{
-	return dev->read_subdev->maxdata / 2;
-}
-
-/* generates a different waveform depending on what channel is read */
-static unsigned short fake_waveform(struct comedi_device *dev,
-				    unsigned int channel, unsigned int range,
-				    unsigned long current_time)
-{
-	enum {
-		SAWTOOTH_CHAN,
-		SQUARE_CHAN,
-	};
-	switch (channel) {
-	case SAWTOOTH_CHAN:
-		return fake_sawtooth(dev, range, current_time);
-	case SQUARE_CHAN:
-		return fake_squarewave(dev, range, current_time);
-	default:
-		break;
-	}
-
-	return fake_flatline(dev, range, current_time);
-}
-
-/*
-   This is the background routine used to generate arbitrary data.
-   It should run in the background; therefore it is scheduled by
-   a timer mechanism.
-*/
-static void waveform_ai_interrupt(unsigned long arg)
-{
-	struct comedi_device *dev = (struct comedi_device *)arg;
-	struct waveform_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int i, j;
-	/* all times in microsec */
-	unsigned long elapsed_time;
-	unsigned int num_scans;
-	ktime_t now;
-
-	/* check command is still active */
-	if (!test_bit(WAVEFORM_AI_RUNNING, &devpriv->state_bits))
-		return;
-
-	now = ktime_get();
-
-	elapsed_time = ktime_to_us(ktime_sub(now, devpriv->last));
-	devpriv->last = now;
-	num_scans =
-	    (devpriv->usec_remainder + elapsed_time) / devpriv->scan_period;
-	devpriv->usec_remainder =
-	    (devpriv->usec_remainder + elapsed_time) % devpriv->scan_period;
-
-	num_scans = comedi_nscans_left(s, num_scans);
-	for (i = 0; i < num_scans; i++) {
-		for (j = 0; j < cmd->chanlist_len; j++) {
-			unsigned short sample;
-
-			sample = fake_waveform(dev, CR_CHAN(cmd->chanlist[j]),
-					       CR_RANGE(cmd->chanlist[j]),
-					       devpriv->usec_current +
-						   i * devpriv->scan_period +
-						   j * devpriv->convert_period);
-			comedi_buf_write_samples(s, &sample, 1);
-		}
-	}
-
-	devpriv->usec_current += elapsed_time;
-	devpriv->usec_current %= devpriv->usec_period;
-
-	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
-		async->events |= COMEDI_CB_EOA;
-	else
-		mod_timer(&devpriv->timer, jiffies + 1);
-
-	comedi_handle_events(dev, s);
-}
-
-static int waveform_ai_cmdtest(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_NOW | TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->convert_src == TRIG_NOW)
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    nano_per_micro);
-		if (cmd->convert_src == TRIG_TIMER) {
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    cmd->convert_arg *
-							    cmd->chanlist_len);
-		}
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		/* round to nearest microsec */
-		arg = nano_per_micro *
-		      ((arg + (nano_per_micro / 2)) / nano_per_micro);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		/* round to nearest microsec */
-		arg = nano_per_micro *
-		      ((arg + (nano_per_micro / 2)) / nano_per_micro);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int waveform_ai_cmd(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct waveform_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (cmd->flags & CMDF_PRIORITY) {
-		dev_err(dev->class_dev,
-			"commands at RT priority not supported in this driver\n");
-		return -1;
-	}
-
-	devpriv->scan_period = cmd->scan_begin_arg / nano_per_micro;
-
-	if (cmd->convert_src == TRIG_NOW)
-		devpriv->convert_period = 0;
-	else	/* TRIG_TIMER */
-		devpriv->convert_period = cmd->convert_arg / nano_per_micro;
-
-	devpriv->last = ktime_get();
-	devpriv->usec_current =
-		((u32)ktime_to_us(devpriv->last)) % devpriv->usec_period;
-	devpriv->usec_remainder = 0;
-
-	devpriv->timer.expires = jiffies + 1;
-	/* mark command as active */
-	smp_mb__before_atomic();
-	set_bit(WAVEFORM_AI_RUNNING, &devpriv->state_bits);
-	smp_mb__after_atomic();
-	add_timer(&devpriv->timer);
-	return 0;
-}
-
-static int waveform_ai_cancel(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct waveform_private *devpriv = dev->private;
-
-	/* mark command as no longer active */
-	clear_bit(WAVEFORM_AI_RUNNING, &devpriv->state_bits);
-	smp_mb__after_atomic();
-	/* cannot call del_timer_sync() as may be called from timer routine */
-	del_timer(&devpriv->timer);
-	return 0;
-}
-
-static int waveform_ai_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	struct waveform_private *devpriv = dev->private;
-	int i, chan = CR_CHAN(insn->chanspec);
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = devpriv->ao_loopbacks[chan];
-
-	return insn->n;
-}
-
-static int waveform_ao_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
-{
-	struct waveform_private *devpriv = dev->private;
-	int i, chan = CR_CHAN(insn->chanspec);
-
-	for (i = 0; i < insn->n; i++)
-		devpriv->ao_loopbacks[chan] = data[i];
-
-	return insn->n;
-}
-
-static int waveform_attach(struct comedi_device *dev,
-			   struct comedi_devconfig *it)
-{
-	struct waveform_private *devpriv;
-	struct comedi_subdevice *s;
-	int amplitude = it->options[0];
-	int period = it->options[1];
-	int i;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	/* set default amplitude and period */
-	if (amplitude <= 0)
-		amplitude = 1000000;	/* 1 volt */
-	if (period <= 0)
-		period = 100000;	/* 0.1 sec */
-
-	devpriv->uvolt_amplitude = amplitude;
-	devpriv->usec_period = period;
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	/* analog input subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ;
-	s->n_chan = N_CHANS;
-	s->maxdata = 0xffff;
-	s->range_table = &waveform_ai_ranges;
-	s->len_chanlist = s->n_chan * 2;
-	s->insn_read = waveform_ai_insn_read;
-	s->do_cmd = waveform_ai_cmd;
-	s->do_cmdtest = waveform_ai_cmdtest;
-	s->cancel = waveform_ai_cancel;
-
-	s = &dev->subdevices[1];
-	dev->write_subdev = s;
-	/* analog output subdevice (loopback) */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
-	s->n_chan = N_CHANS;
-	s->maxdata = 0xffff;
-	s->range_table = &waveform_ai_ranges;
-	s->insn_write = waveform_ao_insn_write;
-
-	/* Our default loopback value is just a 0V flatline */
-	for (i = 0; i < s->n_chan; i++)
-		devpriv->ao_loopbacks[i] = s->maxdata / 2;
-
-	setup_timer(&devpriv->timer, waveform_ai_interrupt,
-		    (unsigned long)dev);
-
-	dev_info(dev->class_dev,
-		 "%s: %i microvolt, %li microsecond waveform attached\n",
-		 dev->board_name,
-		 devpriv->uvolt_amplitude, devpriv->usec_period);
-
-	return 0;
-}
-
-static void waveform_detach(struct comedi_device *dev)
-{
-	struct waveform_private *devpriv = dev->private;
-
-	if (devpriv)
-		del_timer_sync(&devpriv->timer);
-}
-
-static struct comedi_driver waveform_driver = {
-	.driver_name	= "comedi_test",
-	.module		= THIS_MODULE,
-	.attach		= waveform_attach,
-	.detach		= waveform_detach,
-};
-module_comedi_driver(waveform_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
deleted file mode 100644
index 4956a49a6140..000000000000
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
-    comedi/drivers/contec_pci_dio.c
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: contec_pci_dio
-Description: Contec PIO1616L digital I/O board
-Devices: [Contec] PIO1616L (contec_pci_dio)
-Author: Stefano Rivoir <s.rivoir@gts.it>
-Updated: Wed, 27 Jun 2007 13:00:06 +0100
-Status: works
-
-Configuration Options: not applicable, uses comedi PCI auto config
-*/
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-/*
- * Register map
- */
-#define PIO1616L_DI_REG		0x00
-#define PIO1616L_DO_REG		0x02
-
-static int contec_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + PIO1616L_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int contec_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	data[1] = inw(dev->iobase + PIO1616L_DI_REG);
-
-	return insn->n;
-}
-
-static int contec_auto_attach(struct comedi_device *dev,
-			      unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 0);
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= contec_di_insn_bits;
-
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= contec_do_insn_bits;
-
-	return 0;
-}
-
-static struct comedi_driver contec_pci_dio_driver = {
-	.driver_name	= "contec_pci_dio",
-	.module		= THIS_MODULE,
-	.auto_attach	= contec_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int contec_pci_dio_pci_probe(struct pci_dev *dev,
-				    const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &contec_pci_dio_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id contec_pci_dio_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CONTEC, 0x8172) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, contec_pci_dio_pci_table);
-
-static struct pci_driver contec_pci_dio_pci_driver = {
-	.name		= "contec_pci_dio",
-	.id_table	= contec_pci_dio_pci_table,
-	.probe		= contec_pci_dio_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(contec_pci_dio_driver, contec_pci_dio_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dac02.c b/drivers/staging/comedi/drivers/dac02.c
deleted file mode 100644
index a562df498b01..000000000000
--- a/drivers/staging/comedi/drivers/dac02.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * dac02.c
- * Comedi driver for DAC02 compatible boards
- * Copyright (C) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * Based on the poc driver
- * Copyright (C) 2000 Frank Mori Hess <fmhess@users.sourceforge.net>
- * Copyright (C) 2001 David A. Schleef <ds@schleef.org>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: dac02
- * Description: Comedi driver for DAC02 compatible boards
- * Devices: [Keithley Metrabyte] DAC-02 (dac02)
- * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
- * Updated: Tue, 11 Mar 2014 11:27:19 -0700
- * Status: unknown
- *
- * Configuration options:
- *	[0] - I/O port base
- */
-
-#include <linux/module.h>
-
-#include "../comedidev.h"
-
-/*
- * The output range is selected by jumpering pins on the I/O connector.
- *
- *	    Range      Chan #   Jumper pins        Output
- *	-------------  ------  -------------  -----------------
- *	   0 to 5V       0        21 to 22      24
- *	                 1        15 to 16      18
- *	   0 to 10V      0        20 to 22      24
- *	                 1        14 to 16      18
- *	    +/-5V        0        21 to 22      23
- *	                 1        15 to 16      17
- *	    +/-10V       0        20 to 22      23
- *	                 1        14 to 16      17
- *	  4 to 20mA      0        21 to 22      25
- *	                 1        15 to 16      19
- *	AC reference     0      In on pin 22    24 (2-quadrant)
- *	                        In on pin 22    23 (4-quadrant)
- *	                 1      In on pin 16    18 (2-quadrant)
- *	                        In on pin 16    17 (4-quadrant)
- */
-static const struct comedi_lrange das02_ao_ranges = {
-	6, {
-		UNI_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		RANGE_mA(4, 20),
-		RANGE_ext(0, 1)
-	}
-};
-
-/*
- * Register I/O map
- */
-#define DAC02_AO_LSB(x)		(0x00 + ((x) * 2))
-#define DAC02_AO_MSB(x)		(0x01 + ((x) * 2))
-
-static int dac02_ao_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		s->readback[chan] = val;
-
-		/*
-		 * Unipolar outputs are true binary encoding.
-		 * Bipolar outputs are complementary offset binary
-		 * (that is, 0 = +full scale, maxdata = -full scale).
-		 */
-		if (comedi_range_is_bipolar(s, range))
-			val = s->maxdata - val;
-
-		/*
-		 * DACs are double-buffered.
-		 * Write LSB then MSB to latch output.
-		 */
-		outb((val << 4) & 0xf0, dev->iobase + DAC02_AO_LSB(chan));
-		outb((val >> 4) & 0xff, dev->iobase + DAC02_AO_MSB(chan));
-	}
-
-	return insn->n;
-}
-
-static int dac02_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x08);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &das02_ao_ranges;
-	s->insn_write	= dac02_ao_insn_write;
-
-	return comedi_alloc_subdev_readback(s);
-}
-
-static struct comedi_driver dac02_driver = {
-	.driver_name	= "dac02",
-	.module		= THIS_MODULE,
-	.attach		= dac02_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(dac02_driver);
-
-MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_DESCRIPTION("Comedi driver for DAC02 compatible boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
deleted file mode 100644
index 611b0a3ef5d7..000000000000
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ /dev/null
@@ -1,764 +0,0 @@
-/*
- * comedi/drivers/daqboard2000.c
- * hardware driver for IOtech DAQboard/2000
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-/*
- * Driver: daqboard2000
- * Description: IOTech DAQBoard/2000
- * Author: Anders Blomdell <anders.blomdell@control.lth.se>
- * Status: works
- * Updated: Mon, 14 Apr 2008 15:28:52 +0100
- * Devices: [IOTech] DAQBoard/2000 (daqboard2000)
- *
- * Much of the functionality of this driver was determined from reading
- * the source code for the Windows driver.
- *
- * The FPGA on the board requires fimware, which is available from
- * http://www.comedi.org in the comedi_nonfree_firmware tarball.
- *
- * Configuration options: not applicable, uses PCI auto config
- */
-/*
- * This card was obviously never intended to leave the Windows world,
- * since it lacked all kind of hardware documentation (except for cable
- * pinouts, plug and pray has something to catch up with yet).
- *
- * With some help from our swedish distributor, we got the Windows sourcecode
- * for the card, and here are the findings so far.
- *
- * 1. A good document that describes the PCI interface chip is 9080db-106.pdf
- *    available from http://www.plxtech.com/products/io/pci9080
- *
- * 2. The initialization done so far is:
- *      a. program the FPGA (windows code sans a lot of error messages)
- *      b.
- *
- * 3. Analog out seems to work OK with DAC's disabled, if DAC's are enabled,
- *    you have to output values to all enabled DAC's until result appears, I
- *    guess that it has something to do with pacer clocks, but the source
- *    gives me no clues. I'll keep it simple so far.
- *
- * 4. Analog in.
- *    Each channel in the scanlist seems to be controlled by four
- *    control words:
- *
- *	Word0:
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *	  ! | | | ! | | | ! | | | ! | | | !
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *
- *	Word1:
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *	  ! | | | ! | | | ! | | | ! | | | !
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *	   |             |       | | | | |
- *	   +------+------+       | | | | +-- Digital input (??)
- *		  |		 | | | +---- 10 us settling time
- *		  |		 | | +------ Suspend acquisition (last to scan)
- *		  |		 | +-------- Simultaneous sample and hold
- *		  |		 +---------- Signed data format
- *		  +------------------------- Correction offset low
- *
- *	Word2:
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *	  ! | | | ! | | | ! | | | ! | | | !
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *	   |     | |     | | | | | |     |
- *	   +-----+ +--+--+ +++ +++ +--+--+
- *	      |       |     |   |     +----- Expansion channel
- *	      |       |     |   +----------- Expansion gain
- *	      |       |     +--------------- Channel (low)
- *	      |       +--------------------- Correction offset high
- *	      +----------------------------- Correction gain low
- *	Word3:
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *	  ! | | | ! | | | ! | | | ! | | | !
- *	  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- *	   |             | | | |   | | | |
- *	   +------+------+ | | +-+-+ | | +-- Low bank enable
- *		  |	   | |   |   | +---- High bank enable
- *		  |	   | |   |   +------ Hi/low select
- *		  |	   | |   +---------- Gain (1,?,2,4,8,16,32,64)
- *		  |	   | +-------------- differential/single ended
- *		  |	   +---------------- Unipolar
- *		  +------------------------- Correction gain high
- *
- * 999. The card seems to have an incredible amount of capabilities, but
- *      trying to reverse engineer them from the Windows source is beyond my
- *      patience.
- *
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "8255.h"
-
-#define DAQBOARD2000_FIRMWARE		"daqboard2000_firmware.bin"
-
-#define DAQBOARD2000_SUBSYSTEM_IDS2	0x0002	/* Daqboard/2000 - 2 Dacs */
-#define DAQBOARD2000_SUBSYSTEM_IDS4	0x0004	/* Daqboard/2000 - 4 Dacs */
-
-/* Initialization bits for the Serial EEPROM Control Register */
-#define DAQBOARD2000_SECRProgPinHi      0x8001767e
-#define DAQBOARD2000_SECRProgPinLo      0x8000767e
-#define DAQBOARD2000_SECRLocalBusHi     0xc000767e
-#define DAQBOARD2000_SECRLocalBusLo     0x8000767e
-#define DAQBOARD2000_SECRReloadHi       0xa000767e
-#define DAQBOARD2000_SECRReloadLo       0x8000767e
-
-/* SECR status bits */
-#define DAQBOARD2000_EEPROM_PRESENT     0x10000000
-
-/* CPLD status bits */
-#define DAQBOARD2000_CPLD_INIT		0x0002
-#define DAQBOARD2000_CPLD_DONE		0x0004
-
-static const struct comedi_lrange range_daqboard2000_ai = {
-	13, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		BIP_RANGE(0.3125),
-		BIP_RANGE(0.156),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		UNI_RANGE(0.625),
-		UNI_RANGE(0.3125)
-	}
-};
-
-/*
- * Register Memory Map
- */
-#define acqControl			0x00		/* u16 */
-#define acqScanListFIFO			0x02		/* u16 */
-#define acqPacerClockDivLow		0x04		/* u32 */
-#define acqScanCounter			0x08		/* u16 */
-#define acqPacerClockDivHigh		0x0a		/* u16 */
-#define acqTriggerCount			0x0c		/* u16 */
-#define acqResultsFIFO			0x10		/* u16 */
-#define acqResultsShadow		0x14		/* u16 */
-#define acqAdcResult			0x18		/* u16 */
-#define dacScanCounter			0x1c		/* u16 */
-#define dacControl			0x20		/* u16 */
-#define dacFIFO				0x24		/* s16 */
-#define dacPacerClockDiv		0x2a		/* u16 */
-#define refDacs				0x2c		/* u16 */
-#define dioControl			0x30		/* u16 */
-#define dioP3hsioData			0x32		/* s16 */
-#define dioP3Control			0x34		/* u16 */
-#define calEepromControl		0x36		/* u16 */
-#define dacSetting(x)			(0x38 + (x)*2)	/* s16 */
-#define dioP2ExpansionIO8Bit		0x40		/* s16 */
-#define ctrTmrControl			0x80		/* u16 */
-#define ctrInput(x)			(0x88 + (x)*2)	/* s16 */
-#define timerDivisor(x)			(0xa0 + (x)*2)	/* u16 */
-#define dmaControl			0xb0		/* u16 */
-#define trigControl			0xb2		/* u16 */
-#define calEeprom			0xb8		/* u16 */
-#define acqDigitalMark			0xba		/* u16 */
-#define trigDacs			0xbc		/* u16 */
-#define dioP2ExpansionIO16Bit(x)	(0xc0 + (x)*2)	/* s16 */
-
-/* Scan Sequencer programming */
-#define DAQBOARD2000_SeqStartScanList            0x0011
-#define DAQBOARD2000_SeqStopScanList             0x0010
-
-/* Prepare for acquisition */
-#define DAQBOARD2000_AcqResetScanListFifo        0x0004
-#define DAQBOARD2000_AcqResetResultsFifo         0x0002
-#define DAQBOARD2000_AcqResetConfigPipe          0x0001
-
-/* Acqusition status bits */
-#define DAQBOARD2000_AcqResultsFIFOMore1Sample   0x0001
-#define DAQBOARD2000_AcqResultsFIFOHasValidData  0x0002
-#define DAQBOARD2000_AcqResultsFIFOOverrun       0x0004
-#define DAQBOARD2000_AcqLogicScanning            0x0008
-#define DAQBOARD2000_AcqConfigPipeFull           0x0010
-#define DAQBOARD2000_AcqScanListFIFOEmpty        0x0020
-#define DAQBOARD2000_AcqAdcNotReady              0x0040
-#define DAQBOARD2000_ArbitrationFailure          0x0080
-#define DAQBOARD2000_AcqPacerOverrun             0x0100
-#define DAQBOARD2000_DacPacerOverrun             0x0200
-#define DAQBOARD2000_AcqHardwareError            0x01c0
-
-/* Scan Sequencer programming */
-#define DAQBOARD2000_SeqStartScanList            0x0011
-#define DAQBOARD2000_SeqStopScanList             0x0010
-
-/* Pacer Clock Control */
-#define DAQBOARD2000_AdcPacerInternal            0x0030
-#define DAQBOARD2000_AdcPacerExternal            0x0032
-#define DAQBOARD2000_AdcPacerEnable              0x0031
-#define DAQBOARD2000_AdcPacerEnableDacPacer      0x0034
-#define DAQBOARD2000_AdcPacerDisable             0x0030
-#define DAQBOARD2000_AdcPacerNormalMode          0x0060
-#define DAQBOARD2000_AdcPacerCompatibilityMode   0x0061
-#define DAQBOARD2000_AdcPacerInternalOutEnable   0x0008
-#define DAQBOARD2000_AdcPacerExternalRising      0x0100
-
-/* DAC status */
-#define DAQBOARD2000_DacFull                     0x0001
-#define DAQBOARD2000_RefBusy                     0x0002
-#define DAQBOARD2000_TrgBusy                     0x0004
-#define DAQBOARD2000_CalBusy                     0x0008
-#define DAQBOARD2000_Dac0Busy                    0x0010
-#define DAQBOARD2000_Dac1Busy                    0x0020
-#define DAQBOARD2000_Dac2Busy                    0x0040
-#define DAQBOARD2000_Dac3Busy                    0x0080
-
-/* DAC control */
-#define DAQBOARD2000_Dac0Enable                  0x0021
-#define DAQBOARD2000_Dac1Enable                  0x0031
-#define DAQBOARD2000_Dac2Enable                  0x0041
-#define DAQBOARD2000_Dac3Enable                  0x0051
-#define DAQBOARD2000_DacEnableBit                0x0001
-#define DAQBOARD2000_Dac0Disable                 0x0020
-#define DAQBOARD2000_Dac1Disable                 0x0030
-#define DAQBOARD2000_Dac2Disable                 0x0040
-#define DAQBOARD2000_Dac3Disable                 0x0050
-#define DAQBOARD2000_DacResetFifo                0x0004
-#define DAQBOARD2000_DacPatternDisable           0x0060
-#define DAQBOARD2000_DacPatternEnable            0x0061
-#define DAQBOARD2000_DacSelectSignedData         0x0002
-#define DAQBOARD2000_DacSelectUnsignedData       0x0000
-
-/* Trigger Control */
-#define DAQBOARD2000_TrigAnalog                  0x0000
-#define DAQBOARD2000_TrigTTL                     0x0010
-#define DAQBOARD2000_TrigTransHiLo               0x0004
-#define DAQBOARD2000_TrigTransLoHi               0x0000
-#define DAQBOARD2000_TrigAbove                   0x0000
-#define DAQBOARD2000_TrigBelow                   0x0004
-#define DAQBOARD2000_TrigLevelSense              0x0002
-#define DAQBOARD2000_TrigEdgeSense               0x0000
-#define DAQBOARD2000_TrigEnable                  0x0001
-#define DAQBOARD2000_TrigDisable                 0x0000
-
-/* Reference Dac Selection */
-#define DAQBOARD2000_PosRefDacSelect             0x0100
-#define DAQBOARD2000_NegRefDacSelect             0x0000
-
-struct daq200_boardtype {
-	const char *name;
-	int id;
-};
-static const struct daq200_boardtype boardtypes[] = {
-	{"ids2", DAQBOARD2000_SUBSYSTEM_IDS2},
-	{"ids4", DAQBOARD2000_SUBSYSTEM_IDS4},
-};
-
-struct daqboard2000_private {
-	enum {
-		card_daqboard_2000
-	} card;
-	void __iomem *plx;
-};
-
-static void writeAcqScanListEntry(struct comedi_device *dev, u16 entry)
-{
-	/* udelay(4); */
-	writew(entry & 0x00ff, dev->mmio + acqScanListFIFO);
-	/* udelay(4); */
-	writew((entry >> 8) & 0x00ff, dev->mmio + acqScanListFIFO);
-}
-
-static void setup_sampling(struct comedi_device *dev, int chan, int gain)
-{
-	u16 word0, word1, word2, word3;
-
-	/* Channel 0-7 diff, channel 8-23 single ended */
-	word0 = 0;
-	word1 = 0x0004;		/* Last scan */
-	word2 = (chan << 6) & 0x00c0;
-	switch (chan / 4) {
-	case 0:
-		word3 = 0x0001;
-		break;
-	case 1:
-		word3 = 0x0002;
-		break;
-	case 2:
-		word3 = 0x0005;
-		break;
-	case 3:
-		word3 = 0x0006;
-		break;
-	case 4:
-		word3 = 0x0041;
-		break;
-	case 5:
-		word3 = 0x0042;
-		break;
-	default:
-		word3 = 0;
-		break;
-	}
-/*
-  dev->eeprom.correctionDACSE[i][j][k].offset = 0x800;
-  dev->eeprom.correctionDACSE[i][j][k].gain = 0xc00;
-*/
-	/* These should be read from EEPROM */
-	word2 |= 0x0800;
-	word3 |= 0xc000;
-	writeAcqScanListEntry(dev, word0);
-	writeAcqScanListEntry(dev, word1);
-	writeAcqScanListEntry(dev, word2);
-	writeAcqScanListEntry(dev, word3);
-}
-
-static int daqboard2000_ai_status(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned long context)
-{
-	unsigned int status;
-
-	status = readw(dev->mmio + acqControl);
-	if (status & context)
-		return 0;
-	return -EBUSY;
-}
-
-static int daqboard2000_ai_insn_read(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	int gain, chan;
-	int ret;
-	int i;
-
-	writew(DAQBOARD2000_AcqResetScanListFifo |
-	       DAQBOARD2000_AcqResetResultsFifo |
-	       DAQBOARD2000_AcqResetConfigPipe, dev->mmio + acqControl);
-
-	/*
-	 * If pacer clock is not set to some high value (> 10 us), we
-	 * risk multiple samples to be put into the result FIFO.
-	 */
-	/* 1 second, should be long enough */
-	writel(1000000, dev->mmio + acqPacerClockDivLow);
-	writew(0, dev->mmio + acqPacerClockDivHigh);
-
-	gain = CR_RANGE(insn->chanspec);
-	chan = CR_CHAN(insn->chanspec);
-
-	/* This doesn't look efficient.  I decided to take the conservative
-	 * approach when I did the insn conversion.  Perhaps it would be
-	 * better to have broken it completely, then someone would have been
-	 * forced to fix it.  --ds */
-	for (i = 0; i < insn->n; i++) {
-		setup_sampling(dev, chan, gain);
-		/* Enable reading from the scanlist FIFO */
-		writew(DAQBOARD2000_SeqStartScanList, dev->mmio + acqControl);
-
-		ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
-				     DAQBOARD2000_AcqConfigPipeFull);
-		if (ret)
-			return ret;
-
-		writew(DAQBOARD2000_AdcPacerEnable, dev->mmio + acqControl);
-
-		ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
-				     DAQBOARD2000_AcqLogicScanning);
-		if (ret)
-			return ret;
-
-		ret = comedi_timeout(dev, s, insn, daqboard2000_ai_status,
-				     DAQBOARD2000_AcqResultsFIFOHasValidData);
-		if (ret)
-			return ret;
-
-		data[i] = readw(dev->mmio + acqResultsFIFO);
-		writew(DAQBOARD2000_AdcPacerDisable, dev->mmio + acqControl);
-		writew(DAQBOARD2000_SeqStopScanList, dev->mmio + acqControl);
-	}
-
-	return i;
-}
-
-static int daqboard2000_ao_eoc(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned long context)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int status;
-
-	status = readw(dev->mmio + dacControl);
-	if ((status & ((chan + 1) * 0x0010)) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int daqboard2000_ao_insn_write(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-		int ret;
-
-		writew(val, dev->mmio + dacSetting(chan));
-
-		ret = comedi_timeout(dev, s, insn, daqboard2000_ao_eoc, 0);
-		if (ret)
-			return ret;
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static void daqboard2000_resetLocalBus(struct comedi_device *dev)
-{
-	struct daqboard2000_private *devpriv = dev->private;
-
-	writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c);
-	mdelay(10);
-	writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c);
-	mdelay(10);
-}
-
-static void daqboard2000_reloadPLX(struct comedi_device *dev)
-{
-	struct daqboard2000_private *devpriv = dev->private;
-
-	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
-	mdelay(10);
-	writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c);
-	mdelay(10);
-	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
-	mdelay(10);
-}
-
-static void daqboard2000_pulseProgPin(struct comedi_device *dev)
-{
-	struct daqboard2000_private *devpriv = dev->private;
-
-	writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c);
-	mdelay(10);
-	writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c);
-	mdelay(10);	/* Not in the original code, but I like symmetry... */
-}
-
-static int daqboard2000_pollCPLD(struct comedi_device *dev, int mask)
-{
-	int result = 0;
-	int i;
-	int cpld;
-
-	/* timeout after 50 tries -> 5ms */
-	for (i = 0; i < 50; i++) {
-		cpld = readw(dev->mmio + 0x1000);
-		if ((cpld & mask) == mask) {
-			result = 1;
-			break;
-		}
-		udelay(100);
-	}
-	udelay(5);
-	return result;
-}
-
-static int daqboard2000_writeCPLD(struct comedi_device *dev, int data)
-{
-	int result = 0;
-
-	udelay(10);
-	writew(data, dev->mmio + 0x1000);
-	if ((readw(dev->mmio + 0x1000) & DAQBOARD2000_CPLD_INIT) ==
-	    DAQBOARD2000_CPLD_INIT) {
-		result = 1;
-	}
-	return result;
-}
-
-static int initialize_daqboard2000(struct comedi_device *dev,
-				   const u8 *cpld_array, size_t len,
-				   unsigned long context)
-{
-	struct daqboard2000_private *devpriv = dev->private;
-	int result = -EIO;
-	/* Read the serial EEPROM control register */
-	int secr;
-	int retry;
-	size_t i;
-
-	/* Check to make sure the serial eeprom is present on the board */
-	secr = readl(devpriv->plx + 0x6c);
-	if (!(secr & DAQBOARD2000_EEPROM_PRESENT))
-		return -EIO;
-
-	for (retry = 0; retry < 3; retry++) {
-		daqboard2000_resetLocalBus(dev);
-		daqboard2000_reloadPLX(dev);
-		daqboard2000_pulseProgPin(dev);
-		if (daqboard2000_pollCPLD(dev, DAQBOARD2000_CPLD_INIT)) {
-			for (i = 0; i < len; i++) {
-				if (cpld_array[i] == 0xff &&
-				    cpld_array[i + 1] == 0x20)
-					break;
-			}
-			for (; i < len; i += 2) {
-				int data =
-				    (cpld_array[i] << 8) + cpld_array[i + 1];
-				if (!daqboard2000_writeCPLD(dev, data))
-					break;
-			}
-			if (i >= len) {
-				daqboard2000_resetLocalBus(dev);
-				daqboard2000_reloadPLX(dev);
-				result = 0;
-				break;
-			}
-		}
-	}
-	return result;
-}
-
-static void daqboard2000_adcStopDmaTransfer(struct comedi_device *dev)
-{
-}
-
-static void daqboard2000_adcDisarm(struct comedi_device *dev)
-{
-	/* Disable hardware triggers */
-	udelay(2);
-	writew(DAQBOARD2000_TrigAnalog | DAQBOARD2000_TrigDisable,
-	       dev->mmio + trigControl);
-	udelay(2);
-	writew(DAQBOARD2000_TrigTTL | DAQBOARD2000_TrigDisable,
-	       dev->mmio + trigControl);
-
-	/* Stop the scan list FIFO from loading the configuration pipe */
-	udelay(2);
-	writew(DAQBOARD2000_SeqStopScanList, dev->mmio + acqControl);
-
-	/* Stop the pacer clock */
-	udelay(2);
-	writew(DAQBOARD2000_AdcPacerDisable, dev->mmio + acqControl);
-
-	/* Stop the input dma (abort channel 1) */
-	daqboard2000_adcStopDmaTransfer(dev);
-}
-
-static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
-{
-	unsigned int val;
-	int timeout;
-
-	/*  Set the + reference dac value in the FPGA */
-	writew(0x80 | DAQBOARD2000_PosRefDacSelect, dev->mmio + refDacs);
-	for (timeout = 0; timeout < 20; timeout++) {
-		val = readw(dev->mmio + dacControl);
-		if ((val & DAQBOARD2000_RefBusy) == 0)
-			break;
-		udelay(2);
-	}
-
-	/*  Set the - reference dac value in the FPGA */
-	writew(0x80 | DAQBOARD2000_NegRefDacSelect, dev->mmio + refDacs);
-	for (timeout = 0; timeout < 20; timeout++) {
-		val = readw(dev->mmio + dacControl);
-		if ((val & DAQBOARD2000_RefBusy) == 0)
-			break;
-		udelay(2);
-	}
-}
-
-static void daqboard2000_initializeCtrs(struct comedi_device *dev)
-{
-}
-
-static void daqboard2000_initializeTmrs(struct comedi_device *dev)
-{
-}
-
-static void daqboard2000_dacDisarm(struct comedi_device *dev)
-{
-}
-
-static void daqboard2000_initializeAdc(struct comedi_device *dev)
-{
-	daqboard2000_adcDisarm(dev);
-	daqboard2000_activateReferenceDacs(dev);
-	daqboard2000_initializeCtrs(dev);
-	daqboard2000_initializeTmrs(dev);
-}
-
-static void daqboard2000_initializeDac(struct comedi_device *dev)
-{
-	daqboard2000_dacDisarm(dev);
-}
-
-static int daqboard2000_8255_cb(struct comedi_device *dev,
-				int dir, int port, int data,
-				unsigned long iobase)
-{
-	if (dir) {
-		writew(data, dev->mmio + iobase + port * 2);
-		return 0;
-	}
-	return readw(dev->mmio + iobase + port * 2);
-}
-
-static const void *daqboard2000_find_boardinfo(struct comedi_device *dev,
-					       struct pci_dev *pcidev)
-{
-	const struct daq200_boardtype *board;
-	int i;
-
-	if (pcidev->subsystem_device != PCI_VENDOR_ID_IOTECH)
-		return NULL;
-
-	for (i = 0; i < ARRAY_SIZE(boardtypes); i++) {
-		board = &boardtypes[i];
-		if (pcidev->subsystem_device == board->id)
-			return board;
-	}
-	return NULL;
-}
-
-static int daqboard2000_auto_attach(struct comedi_device *dev,
-				    unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct daq200_boardtype *board;
-	struct daqboard2000_private *devpriv;
-	struct comedi_subdevice *s;
-	int result;
-
-	board = daqboard2000_find_boardinfo(dev, pcidev);
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	result = comedi_pci_enable(dev);
-	if (result)
-		return result;
-
-	devpriv->plx = pci_ioremap_bar(pcidev, 0);
-	dev->mmio = pci_ioremap_bar(pcidev, 2);
-	if (!devpriv->plx || !dev->mmio)
-		return -ENOMEM;
-
-	result = comedi_alloc_subdevices(dev, 3);
-	if (result)
-		return result;
-
-	readl(devpriv->plx + 0x6c);
-
-	result = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
-				      DAQBOARD2000_FIRMWARE,
-				      initialize_daqboard2000, 0);
-	if (result < 0)
-		return result;
-
-	daqboard2000_initializeAdc(dev);
-	daqboard2000_initializeDac(dev);
-
-	s = &dev->subdevices[0];
-	/* ai subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = 24;
-	s->maxdata = 0xffff;
-	s->insn_read = daqboard2000_ai_insn_read;
-	s->range_table = &range_daqboard2000_ai;
-
-	s = &dev->subdevices[1];
-	/* ao subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 2;
-	s->maxdata = 0xffff;
-	s->insn_write = daqboard2000_ao_insn_write;
-	s->range_table = &range_bipolar10;
-
-	result = comedi_alloc_subdev_readback(s);
-	if (result)
-		return result;
-
-	s = &dev->subdevices[2];
-	result = subdev_8255_init(dev, s, daqboard2000_8255_cb,
-				  dioP2ExpansionIO8Bit);
-	if (result)
-		return result;
-
-	return 0;
-}
-
-static void daqboard2000_detach(struct comedi_device *dev)
-{
-	struct daqboard2000_private *devpriv = dev->private;
-
-	if (devpriv && devpriv->plx)
-		iounmap(devpriv->plx);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver daqboard2000_driver = {
-	.driver_name	= "daqboard2000",
-	.module		= THIS_MODULE,
-	.auto_attach	= daqboard2000_auto_attach,
-	.detach		= daqboard2000_detach,
-};
-
-static int daqboard2000_pci_probe(struct pci_dev *dev,
-				  const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &daqboard2000_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id daqboard2000_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_IOTECH, 0x0409) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, daqboard2000_pci_table);
-
-static struct pci_driver daqboard2000_pci_driver = {
-	.name		= "daqboard2000",
-	.id_table	= daqboard2000_pci_table,
-	.probe		= daqboard2000_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(daqboard2000_driver, daqboard2000_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(DAQBOARD2000_FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
deleted file mode 100644
index 3d8fc6ad44df..000000000000
--- a/drivers/staging/comedi/drivers/das08.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/*
- * comedi/drivers/das08.c
- * comedi module for common DAS08 support (used by ISA/PCI/PCMCIA drivers)
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- * Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- * Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-
-#include "../comedidev.h"
-
-#include "8255.h"
-#include "comedi_8254.h"
-#include "das08.h"
-
-/*
- * Data format of DAS08_AI_LSB_REG and DAS08_AI_MSB_REG depends on
- * 'ai_encoding' member of board structure:
- *
- * das08_encode12     : DATA[11..4] = MSB[7..0], DATA[3..0] = LSB[7..4].
- * das08_pcm_encode12 : DATA[11..8] = MSB[3..0], DATA[7..9] = LSB[7..0].
- * das08_encode16     : SIGN = MSB[7], MAGNITUDE[14..8] = MSB[6..0],
- *                      MAGNITUDE[7..0] = LSB[7..0].
- *                      SIGN==0 for negative input, SIGN==1 for positive input.
- *                      Note: when read a second time after conversion
- *                            complete, MSB[7] is an "over-range" bit.
- */
-#define DAS08_AI_LSB_REG	0x00	/* (R) AI least significant bits */
-#define DAS08_AI_MSB_REG	0x01	/* (R) AI most significant bits */
-#define DAS08_AI_TRIG_REG	0x01	/* (W) AI software trigger */
-#define DAS08_STATUS_REG	0x02	/* (R) status */
-#define DAS08_STATUS_AI_BUSY	BIT(7)	/* AI conversion in progress */
-/*
- * The IRQ status bit is set to 1 by a rising edge on the external interrupt
- * input (which may be jumpered to the pacer output).  It is cleared by
- * setting the INTE control bit to 0.  Not present on "JR" boards.
- */
-#define DAS08_STATUS_IRQ	BIT(3)	/* latched interrupt input */
-/* digital inputs (not "JR" boards) */
-#define DAS08_STATUS_DI(x)	(((x) & 0x70) >> 4)
-#define DAS08_CONTROL_REG	0x02	/* (W) control */
-/*
- * Note: The AI multiplexor channel can also be read from status register using
- * the same mask.
- */
-#define DAS08_CONTROL_MUX_MASK	0x7	/* multiplexor channel mask */
-#define DAS08_CONTROL_MUX(x)	((x) & DAS08_CONTROL_MUX_MASK) /* mux channel */
-#define DAS08_CONTROL_INTE	BIT(3)	/* interrupt enable (not "JR" boards) */
-#define DAS08_CONTROL_DO_MASK	0xf0	/* digital outputs mask (not "JR") */
-/* digital outputs (not "JR" boards) */
-#define DAS08_CONTROL_DO(x)	(((x) << 4) & DAS08_CONTROL_DO_MASK)
-/*
- * (R/W) programmable AI gain ("PGx" and "AOx" boards):
- * + bits 3..0 (R/W) show/set the gain for the current AI mux channel
- * + bits 6..4 (R) show the current AI mux channel
- * + bit 7 (R) not unused
- */
-#define DAS08_GAIN_REG		0x03
-
-#define DAS08JR_DI_REG		0x03	/* (R) digital inputs ("JR" boards) */
-#define DAS08JR_DO_REG		0x03	/* (W) digital outputs ("JR" boards) */
-/* (W) analog output l.s.b. registers for 2 channels ("JR" boards) */
-#define DAS08JR_AO_LSB_REG(x)	((x) ? 0x06 : 0x04)
-/* (W) analog output m.s.b. registers for 2 channels ("JR" boards) */
-#define DAS08JR_AO_MSB_REG(x)	((x) ? 0x07 : 0x05)
-/*
- * (R) update analog outputs ("JR" boards set for simultaneous output)
- *     (same register as digital inputs)
- */
-#define DAS08JR_AO_UPDATE_REG	0x03
-
-/* (W) analog output l.s.b. registers for 2 channels ("AOx" boards) */
-#define DAS08AOX_AO_LSB_REG(x)	((x) ? 0x0a : 0x08)
-/* (W) analog output m.s.b. registers for 2 channels ("AOx" boards) */
-#define DAS08AOX_AO_MSB_REG(x)	((x) ? 0x0b : 0x09)
-/*
- * (R) update analog outputs ("AOx" boards set for simultaneous output)
- *     (any of the analog output registers could be used for this)
- */
-#define DAS08AOX_AO_UPDATE_REG	0x08
-
-/* gainlist same as _pgx_ below */
-
-static const struct comedi_lrange das08_pgl_ai_range = {
-	9, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange das08_pgh_ai_range = {
-	12, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.01),
-		BIP_RANGE(0.005),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange das08_pgm_ai_range = {
-	9, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.01),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange *const das08_ai_lranges[] = {
-	[das08_pg_none]		= &range_unknown,
-	[das08_bipolar5]	= &range_bipolar5,
-	[das08_pgh]		= &das08_pgh_ai_range,
-	[das08_pgl]		= &das08_pgl_ai_range,
-	[das08_pgm]		= &das08_pgm_ai_range,
-};
-
-static const int das08_pgh_ai_gainlist[] = {
-	8, 0, 10, 2, 12, 4, 14, 6, 1, 3, 5, 7
-};
-static const int das08_pgl_ai_gainlist[] = { 8, 0, 2, 4, 6, 1, 3, 5, 7 };
-static const int das08_pgm_ai_gainlist[] = { 8, 0, 10, 12, 14, 9, 11, 13, 15 };
-
-static const int *const das08_ai_gainlists[] = {
-	[das08_pg_none]		= NULL,
-	[das08_bipolar5]	= NULL,
-	[das08_pgh]		= das08_pgh_ai_gainlist,
-	[das08_pgl]		= das08_pgl_ai_gainlist,
-	[das08_pgm]		= das08_pgm_ai_gainlist,
-};
-
-static int das08_ai_eoc(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DAS08_STATUS_REG);
-	if ((status & DAS08_STATUS_AI_BUSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int das08_ai_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
-{
-	const struct das08_board_struct *board = dev->board_ptr;
-	struct das08_private_struct *devpriv = dev->private;
-	int n;
-	int chan;
-	int range;
-	int lsb, msb;
-	int ret;
-
-	chan = CR_CHAN(insn->chanspec);
-	range = CR_RANGE(insn->chanspec);
-
-	/* clear crap */
-	inb(dev->iobase + DAS08_AI_LSB_REG);
-	inb(dev->iobase + DAS08_AI_MSB_REG);
-
-	/* set multiplexer */
-	/* lock to prevent race with digital output */
-	spin_lock(&dev->spinlock);
-	devpriv->do_mux_bits &= ~DAS08_CONTROL_MUX_MASK;
-	devpriv->do_mux_bits |= DAS08_CONTROL_MUX(chan);
-	outb(devpriv->do_mux_bits, dev->iobase + DAS08_CONTROL_REG);
-	spin_unlock(&dev->spinlock);
-
-	if (devpriv->pg_gainlist) {
-		/* set gain/range */
-		range = CR_RANGE(insn->chanspec);
-		outb(devpriv->pg_gainlist[range],
-		     dev->iobase + DAS08_GAIN_REG);
-	}
-
-	for (n = 0; n < insn->n; n++) {
-		/* clear over-range bits for 16-bit boards */
-		if (board->ai_nbits == 16)
-			if (inb(dev->iobase + DAS08_AI_MSB_REG) & 0x80)
-				dev_info(dev->class_dev, "over-range\n");
-
-		/* trigger conversion */
-		outb_p(0, dev->iobase + DAS08_AI_TRIG_REG);
-
-		ret = comedi_timeout(dev, s, insn, das08_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		msb = inb(dev->iobase + DAS08_AI_MSB_REG);
-		lsb = inb(dev->iobase + DAS08_AI_LSB_REG);
-		if (board->ai_encoding == das08_encode12) {
-			data[n] = (lsb >> 4) | (msb << 4);
-		} else if (board->ai_encoding == das08_pcm_encode12) {
-			data[n] = (msb << 8) + lsb;
-		} else if (board->ai_encoding == das08_encode16) {
-			/*
-			 * "JR" 16-bit boards are sign-magnitude.
-			 *
-			 * XXX The manual seems to imply that 0 is full-scale
-			 * negative and 65535 is full-scale positive, but the
-			 * original COMEDI patch to add support for the
-			 * DAS08/JR/16 and DAS08/JR/16-AO boards have it
-			 * encoded as sign-magnitude.  Assume the original
-			 * COMEDI code is correct for now.
-			 */
-			unsigned int magnitude = lsb | ((msb & 0x7f) << 8);
-
-			/*
-			 * MSB bit 7 is 0 for negative, 1 for positive voltage.
-			 * COMEDI 16-bit bipolar data value for 0V is 0x8000.
-			 */
-			if (msb & 0x80)
-				data[n] = (1 << 15) + magnitude;
-			else
-				data[n] = (1 << 15) - magnitude;
-		} else {
-			dev_err(dev->class_dev, "bug! unknown ai encoding\n");
-			return -1;
-		}
-	}
-
-	return n;
-}
-
-static int das08_di_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
-{
-	data[0] = 0;
-	data[1] = DAS08_STATUS_DI(inb(dev->iobase + DAS08_STATUS_REG));
-
-	return insn->n;
-}
-
-static int das08_do_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
-{
-	struct das08_private_struct *devpriv = dev->private;
-
-	if (comedi_dio_update_state(s, data)) {
-		/* prevent race with setting of analog input mux */
-		spin_lock(&dev->spinlock);
-		devpriv->do_mux_bits &= ~DAS08_CONTROL_DO_MASK;
-		devpriv->do_mux_bits |= DAS08_CONTROL_DO(s->state);
-		outb(devpriv->do_mux_bits, dev->iobase + DAS08_CONTROL_REG);
-		spin_unlock(&dev->spinlock);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int das08jr_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	data[0] = 0;
-	data[1] = inb(dev->iobase + DAS08JR_DI_REG);
-
-	return insn->n;
-}
-
-static int das08jr_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + DAS08JR_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void das08_ao_set_data(struct comedi_device *dev,
-			      unsigned int chan, unsigned int data)
-{
-	const struct das08_board_struct *board = dev->board_ptr;
-	unsigned char lsb;
-	unsigned char msb;
-
-	lsb = data & 0xff;
-	msb = (data >> 8) & 0xff;
-	if (board->is_jr) {
-		outb(lsb, dev->iobase + DAS08JR_AO_LSB_REG(chan));
-		outb(msb, dev->iobase + DAS08JR_AO_MSB_REG(chan));
-		/* load DACs */
-		inb(dev->iobase + DAS08JR_AO_UPDATE_REG);
-	} else {
-		outb(lsb, dev->iobase + DAS08AOX_AO_LSB_REG(chan));
-		outb(msb, dev->iobase + DAS08AOX_AO_MSB_REG(chan));
-		/* load DACs */
-		inb(dev->iobase + DAS08AOX_AO_UPDATE_REG);
-	}
-}
-
-static int das08_ao_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		das08_ao_set_data(dev, chan, val);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
-{
-	const struct das08_board_struct *board = dev->board_ptr;
-	struct das08_private_struct *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	dev->iobase = iobase;
-
-	dev->board_name = board->name;
-
-	ret = comedi_alloc_subdevices(dev, 6);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* ai */
-	if (board->ai_nbits) {
-		s->type = COMEDI_SUBD_AI;
-		/*
-		 * XXX some boards actually have differential
-		 * inputs instead of single ended.
-		 * The driver does nothing with arefs though,
-		 * so it's no big deal.
-		 */
-		s->subdev_flags = SDF_READABLE | SDF_GROUND;
-		s->n_chan = 8;
-		s->maxdata = (1 << board->ai_nbits) - 1;
-		s->range_table = das08_ai_lranges[board->ai_pg];
-		s->insn_read = das08_ai_insn_read;
-		devpriv->pg_gainlist = das08_ai_gainlists[board->ai_pg];
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[1];
-	/* ao */
-	if (board->ao_nbits) {
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_WRITABLE;
-		s->n_chan = 2;
-		s->maxdata = (1 << board->ao_nbits) - 1;
-		s->range_table = &range_bipolar5;
-		s->insn_write = das08_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		/* initialize all channels to 0V */
-		for (i = 0; i < s->n_chan; i++) {
-			s->readback[i] = s->maxdata / 2;
-			das08_ao_set_data(dev, i, s->readback[i]);
-		}
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[2];
-	/* di */
-	if (board->di_nchan) {
-		s->type = COMEDI_SUBD_DI;
-		s->subdev_flags = SDF_READABLE;
-		s->n_chan = board->di_nchan;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_bits = board->is_jr ? das08jr_di_insn_bits :
-			       das08_di_insn_bits;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[3];
-	/* do */
-	if (board->do_nchan) {
-		s->type = COMEDI_SUBD_DO;
-		s->subdev_flags = SDF_WRITABLE;
-		s->n_chan = board->do_nchan;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_bits = board->is_jr ? das08jr_do_insn_bits :
-			       das08_do_insn_bits;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[4];
-	/* 8255 */
-	if (board->i8255_offset != 0) {
-		ret = subdev_8255_init(dev, s, NULL, board->i8255_offset);
-		if (ret)
-			return ret;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/* Counter subdevice (8254) */
-	s = &dev->subdevices[5];
-	if (board->i8254_offset) {
-		dev->pacer = comedi_8254_init(dev->iobase + board->i8254_offset,
-					      0, I8254_IO8, 0);
-		if (!dev->pacer)
-			return -ENOMEM;
-
-		comedi_8254_subdevice_init(s, dev->pacer);
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(das08_common_attach);
-
-static int __init das08_init(void)
-{
-	return 0;
-}
-module_init(das08_init);
-
-static void __exit das08_exit(void)
-{
-}
-module_exit(das08_exit);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi common DAS08 support module");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das08.h b/drivers/staging/comedi/drivers/das08.h
deleted file mode 100644
index d27044cb7158..000000000000
--- a/drivers/staging/comedi/drivers/das08.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * das08.h
- *
- * Header for common DAS08 support (used by ISA/PCI/PCMCIA drivers)
- *
- * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _DAS08_H
-#define _DAS08_H
-
-#include <linux/types.h>
-
-struct comedi_device;
-
-/* different ways ai data is encoded in first two registers */
-enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
-/* types of ai range table used by different boards */
-enum das08_lrange {
-	das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl, das08_pgm
-};
-
-struct das08_board_struct {
-	const char *name;
-	bool is_jr;		/* true for 'JR' boards */
-	unsigned int ai_nbits;
-	enum das08_lrange ai_pg;
-	enum das08_ai_encoding ai_encoding;
-	unsigned int ao_nbits;
-	unsigned int di_nchan;
-	unsigned int do_nchan;
-	unsigned int i8255_offset;
-	unsigned int i8254_offset;
-	unsigned int iosize;	/* number of ioports used */
-};
-
-struct das08_private_struct {
-	/* bits for do/mux register on boards without separate do register */
-	unsigned int do_mux_bits;
-	const unsigned int *pg_gainlist;
-};
-
-int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
-
-#endif /* _DAS08_H */
diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c
deleted file mode 100644
index 9c02b17a2834..000000000000
--- a/drivers/staging/comedi/drivers/das08_cs.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
-    comedi/drivers/das08_cs.c
-    DAS08 driver
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-    Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    PCMCIA support code for this driver is adapted from the dummy_cs.c
-    driver of the Linux PCMCIA Card Services package.
-
-    The initial developer of the original code is David A. Hinds
-    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
-    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
-*/
-/*
-Driver: das08_cs
-Description: DAS-08 PCMCIA boards
-Author: Warren Jasper, ds, Frank Hess
-Devices: [ComputerBoards] PCM-DAS08 (pcm-das08)
-Status: works
-
-This is the PCMCIA-specific support split off from the
-das08 driver.
-
-Options (for pcm-das08):
-	NONE
-
-Command support does not exist, but could be added for this board.
-*/
-
-#include <linux/module.h>
-
-#include "../comedi_pcmcia.h"
-
-#include "das08.h"
-
-static const struct das08_board_struct das08_cs_boards[] = {
-	{
-		.name		= "pcm-das08",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_bipolar5,
-		.ai_encoding	= das08_pcm_encode12,
-		.di_nchan	= 3,
-		.do_nchan	= 3,
-		.iosize		= 16,
-	},
-};
-
-static int das08_cs_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	struct das08_private_struct *devpriv;
-	unsigned long iobase;
-	int ret;
-
-	/* The das08 driver needs the board_ptr */
-	dev->board_ptr = &das08_cs_boards[0];
-
-	link->config_flags |= CONF_AUTO_SET_IO;
-	ret = comedi_pcmcia_enable(dev, NULL);
-	if (ret)
-		return ret;
-	iobase = link->resource[0]->start;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	return das08_common_attach(dev, iobase);
-}
-
-static struct comedi_driver driver_das08_cs = {
-	.driver_name	= "das08_cs",
-	.module		= THIS_MODULE,
-	.auto_attach	= das08_cs_auto_attach,
-	.detach		= comedi_pcmcia_disable,
-};
-
-static int das08_pcmcia_attach(struct pcmcia_device *link)
-{
-	return comedi_pcmcia_auto_config(link, &driver_das08_cs);
-}
-
-static const struct pcmcia_device_id das08_cs_id_table[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4001),
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, das08_cs_id_table);
-
-static struct pcmcia_driver das08_cs_driver = {
-	.name		= "pcm-das08",
-	.owner		= THIS_MODULE,
-	.id_table	= das08_cs_id_table,
-	.probe		= das08_pcmcia_attach,
-	.remove		= comedi_pcmcia_auto_unconfig,
-};
-module_comedi_pcmcia_driver(driver_das08_cs, das08_cs_driver);
-
-MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
-MODULE_AUTHOR("Frank Mori Hess <fmhess@users.sourceforge.net>");
-MODULE_DESCRIPTION("Comedi driver for ComputerBoards DAS-08 PCMCIA boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das08_isa.c b/drivers/staging/comedi/drivers/das08_isa.c
deleted file mode 100644
index cdefc99b6db3..000000000000
--- a/drivers/staging/comedi/drivers/das08_isa.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- *  das08_isa.c
- *  comedi driver for DAS08 ISA/PC-104 boards
- *
- *  COMEDI - Linux Control and Measurement Device Interface
- *  Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *  Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *  Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- */
-
-/*
- * Driver: das08_isa
- * Description: DAS-08 ISA/PC-104 compatible boards
- * Devices: [Keithley Metrabyte] DAS08 (isa-das08),
- *   [ComputerBoards] DAS08 (isa-das08), DAS08-PGM (das08-pgm),
- *   DAS08-PGH (das08-pgh), DAS08-PGL (das08-pgl), DAS08-AOH (das08-aoh),
- *   DAS08-AOL (das08-aol), DAS08-AOM (das08-aom), DAS08/JR-AO (das08/jr-ao),
- *   DAS08/JR-16-AO (das08jr-16-ao), PC104-DAS08 (pc104-das08),
- *   DAS08/JR/16 (das08jr/16)
- * Author: Warren Jasper, ds, Frank Hess
- * Updated: Fri, 31 Aug 2012 19:19:06 +0100
- * Status: works
- *
- * This is the ISA/PC-104-specific support split off from the das08 driver.
- *
- * Configuration Options:
- *	[0] - base io address
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include "das08.h"
-
-static const struct das08_board_struct das08_isa_boards[] = {
-	{
-		/* cio-das08.pdf */
-		.name		= "isa-das08",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pg_none,
-		.ai_encoding	= das08_encode12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8255_offset	= 8,
-		.i8254_offset	= 4,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08pgx.pdf */
-		.name		= "das08-pgm",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pgm,
-		.ai_encoding	= das08_encode12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8255_offset	= 0,
-		.i8254_offset	= 0x04,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08pgx.pdf */
-		.name		= "das08-pgh",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pgh,
-		.ai_encoding	= das08_encode12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8254_offset	= 0x04,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08pgx.pdf */
-		.name		= "das08-pgl",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pgl,
-		.ai_encoding	= das08_encode12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8254_offset	= 0x04,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08_aox.pdf */
-		.name		= "das08-aoh",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pgh,
-		.ai_encoding	= das08_encode12,
-		.ao_nbits	= 12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8255_offset	= 0x0c,
-		.i8254_offset	= 0x04,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08_aox.pdf */
-		.name		= "das08-aol",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pgl,
-		.ai_encoding	= das08_encode12,
-		.ao_nbits	= 12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8255_offset	= 0x0c,
-		.i8254_offset	= 0x04,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08_aox.pdf */
-		.name		= "das08-aom",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pgm,
-		.ai_encoding	= das08_encode12,
-		.ao_nbits	= 12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8255_offset	= 0x0c,
-		.i8254_offset	= 0x04,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08-jr-ao.pdf */
-		.name		= "das08/jr-ao",
-		.is_jr		= true,
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pg_none,
-		.ai_encoding	= das08_encode12,
-		.ao_nbits	= 12,
-		.di_nchan	= 8,
-		.do_nchan	= 8,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		/* cio-das08jr-16-ao.pdf */
-		.name		= "das08jr-16-ao",
-		.is_jr		= true,
-		.ai_nbits	= 16,
-		.ai_pg		= das08_pg_none,
-		.ai_encoding	= das08_encode16,
-		.ao_nbits	= 16,
-		.di_nchan	= 8,
-		.do_nchan	= 8,
-		.i8254_offset	= 0x04,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		.name		= "pc104-das08",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_pg_none,
-		.ai_encoding	= das08_encode12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8254_offset	= 4,
-		.iosize		= 16,		/* unchecked */
-	}, {
-		.name		= "das08jr/16",
-		.is_jr		= true,
-		.ai_nbits	= 16,
-		.ai_pg		= das08_pg_none,
-		.ai_encoding	= das08_encode16,
-		.di_nchan	= 8,
-		.do_nchan	= 8,
-		.iosize		= 16,		/* unchecked */
-	},
-};
-
-static int das08_isa_attach(struct comedi_device *dev,
-			    struct comedi_devconfig *it)
-{
-	const struct das08_board_struct *board = dev->board_ptr;
-	struct das08_private_struct *devpriv;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], board->iosize);
-	if (ret)
-		return ret;
-
-	return das08_common_attach(dev, dev->iobase);
-}
-
-static struct comedi_driver das08_isa_driver = {
-	.driver_name	= "isa-das08",
-	.module		= THIS_MODULE,
-	.attach		= das08_isa_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &das08_isa_boards[0].name,
-	.num_names	= ARRAY_SIZE(das08_isa_boards),
-	.offset		= sizeof(das08_isa_boards[0]),
-};
-module_comedi_driver(das08_isa_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das08_pci.c b/drivers/staging/comedi/drivers/das08_pci.c
deleted file mode 100644
index d8d27fa44491..000000000000
--- a/drivers/staging/comedi/drivers/das08_pci.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- *  das08_pci.c
- *  comedi driver for DAS08 PCI boards
- *
- *  COMEDI - Linux Control and Measurement Device Interface
- *  Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *  Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *  Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- */
-
-/*
- * Driver: das08_pci
- * Description: DAS-08 PCI compatible boards
- * Devices: [ComputerBoards] PCI-DAS08 (pci-das08)
- * Author: Warren Jasper, ds, Frank Hess
- * Updated: Fri, 31 Aug 2012 19:19:06 +0100
- * Status: works
- *
- * This is the PCI-specific support split off from the das08 driver.
- *
- * Configuration Options: not applicable, uses PCI auto config
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-#include "das08.h"
-
-static const struct das08_board_struct das08_pci_boards[] = {
-	{
-		.name		= "pci-das08",
-		.ai_nbits	= 12,
-		.ai_pg		= das08_bipolar5,
-		.ai_encoding	= das08_encode12,
-		.di_nchan	= 3,
-		.do_nchan	= 4,
-		.i8254_offset	= 4,
-		.iosize		= 8,
-	},
-};
-
-static int das08_pci_auto_attach(struct comedi_device *dev,
-				 unsigned long context_unused)
-{
-	struct pci_dev *pdev = comedi_to_pci_dev(dev);
-	struct das08_private_struct *devpriv;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	/* The das08 driver needs the board_ptr */
-	dev->board_ptr = &das08_pci_boards[0];
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pdev, 2);
-
-	return das08_common_attach(dev, dev->iobase);
-}
-
-static struct comedi_driver das08_pci_comedi_driver = {
-	.driver_name	= "pci-das08",
-	.module		= THIS_MODULE,
-	.auto_attach	= das08_pci_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int das08_pci_probe(struct pci_dev *dev,
-			   const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &das08_pci_comedi_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id das08_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0029) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, das08_pci_table);
-
-static struct pci_driver das08_pci_driver = {
-	.name		= "pci-das08",
-	.id_table	= das08_pci_table,
-	.probe		= das08_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(das08_pci_comedi_driver, das08_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
deleted file mode 100644
index 056bca9c67d5..000000000000
--- a/drivers/staging/comedi/drivers/das16.c
+++ /dev/null
@@ -1,1206 +0,0 @@
-/*
- * das16.c
- * DAS16 driver
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- * Copyright (C) 2000 Chris R. Baugher <baugher@enteract.com>
- * Copyright (C) 2001,2002 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: das16
- * Description: DAS16 compatible boards
- * Author: Sam Moore, Warren Jasper, ds, Chris Baugher, Frank Hess, Roman Fietze
- * Devices: [Keithley Metrabyte] DAS-16 (das-16), DAS-16G (das-16g),
- *   DAS-16F (das-16f), DAS-1201 (das-1201), DAS-1202 (das-1202),
- *   DAS-1401 (das-1401), DAS-1402 (das-1402), DAS-1601 (das-1601),
- *   DAS-1602 (das-1602),
- *   [ComputerBoards] PC104-DAS16/JR (pc104-das16jr),
- *   PC104-DAS16JR/16 (pc104-das16jr/16), CIO-DAS16 (cio-das16),
- *   CIO-DAS16F (cio-das16/f), CIO-DAS16/JR (cio-das16/jr),
- *   CIO-DAS16JR/16 (cio-das16jr/16), CIO-DAS1401/12 (cio-das1401/12),
- *   CIO-DAS1402/12 (cio-das1402/12), CIO-DAS1402/16 (cio-das1402/16),
- *   CIO-DAS1601/12 (cio-das1601/12), CIO-DAS1602/12 (cio-das1602/12),
- *   CIO-DAS1602/16 (cio-das1602/16), CIO-DAS16/330 (cio-das16/330)
- * Status: works
- * Updated: 2003-10-12
- *
- * A rewrite of the das16 and das1600 drivers.
- *
- * Options:
- *	[0] - base io address
- *	[1] - irq (does nothing, irq is not used anymore)
- *	[2] - dma channel (optional, required for comedi_command support)
- *	[3] - master clock speed in MHz (optional, 1 or 10, ignored if
- *		board can probe clock, defaults to 1)
- *	[4] - analog input range lowest voltage in microvolts (optional,
- *		only useful if your board does not have software
- *		programmable gain)
- *	[5] - analog input range highest voltage in microvolts (optional,
- *		only useful if board does not have software programmable
- *		gain)
- *	[6] - analog output range lowest voltage in microvolts (optional)
- *	[7] - analog output range highest voltage in microvolts (optional)
- *
- * Passing a zero for an option is the same as leaving it unspecified.
- */
-
-/*
- * Testing and debugging help provided by Daniel Koch.
- *
- * Keithley Manuals:
- *	2309.PDF (das16)
- *	4919.PDF (das1400, 1600)
- *	4922.PDF (das-1400)
- *	4923.PDF (das1200, 1400, 1600)
- *
- * Computer boards manuals also available from their website
- * www.measurementcomputing.com
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-#include "comedi_8254.h"
-#include "8255.h"
-
-#define DAS16_DMA_SIZE 0xff00	/*  size in bytes of allocated dma buffer */
-
-/*
- * Register I/O map
- */
-#define DAS16_TRIG_REG			0x00
-#define DAS16_AI_LSB_REG		0x00
-#define DAS16_AI_MSB_REG		0x01
-#define DAS16_MUX_REG			0x02
-#define DAS16_DIO_REG			0x03
-#define DAS16_AO_LSB_REG(x)		((x) ? 0x06 : 0x04)
-#define DAS16_AO_MSB_REG(x)		((x) ? 0x07 : 0x05)
-#define DAS16_STATUS_REG		0x08
-#define DAS16_STATUS_BUSY		(1 << 7)
-#define DAS16_STATUS_UNIPOLAR		(1 << 6)
-#define DAS16_STATUS_MUXBIT		(1 << 5)
-#define DAS16_STATUS_INT		(1 << 4)
-#define DAS16_CTRL_REG			0x09
-#define DAS16_CTRL_INTE			(1 << 7)
-#define DAS16_CTRL_IRQ(x)		(((x) & 0x7) << 4)
-#define DAS16_CTRL_DMAE			(1 << 2)
-#define DAS16_CTRL_PACING_MASK		(3 << 0)
-#define DAS16_CTRL_INT_PACER		(3 << 0)
-#define DAS16_CTRL_EXT_PACER		(2 << 0)
-#define DAS16_CTRL_SOFT_PACER		(0 << 0)
-#define DAS16_PACER_REG			0x0a
-#define DAS16_PACER_BURST_LEN(x)	(((x) & 0xf) << 4)
-#define DAS16_PACER_CTR0		(1 << 1)
-#define DAS16_PACER_TRIG0		(1 << 0)
-#define DAS16_GAIN_REG			0x0b
-#define DAS16_TIMER_BASE_REG		0x0c	/* to 0x0f */
-
-#define DAS1600_CONV_REG		0x404
-#define DAS1600_CONV_DISABLE		(1 << 6)
-#define DAS1600_BURST_REG		0x405
-#define DAS1600_BURST_VAL		(1 << 6)
-#define DAS1600_ENABLE_REG		0x406
-#define DAS1600_ENABLE_VAL		(1 << 6)
-#define DAS1600_STATUS_REG		0x407
-#define DAS1600_STATUS_BME		(1 << 6)
-#define DAS1600_STATUS_ME		(1 << 5)
-#define DAS1600_STATUS_CD		(1 << 4)
-#define DAS1600_STATUS_WS		(1 << 1)
-#define DAS1600_STATUS_CLK_10MHZ	(1 << 0)
-
-static const struct comedi_lrange range_das1x01_bip = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_das1x01_unip = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_das1x02_bip = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_das1x02_unip = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_das16jr = {
-	9, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_das16jr_16 = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const int das16jr_gainlist[] = { 8, 0, 1, 2, 3, 4, 5, 6, 7 };
-static const int das16jr_16_gainlist[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
-static const int das1600_gainlist[] = { 0, 1, 2, 3 };
-
-enum {
-	das16_pg_none = 0,
-	das16_pg_16jr,
-	das16_pg_16jr_16,
-	das16_pg_1601,
-	das16_pg_1602,
-};
-static const int *const das16_gainlists[] = {
-	NULL,
-	das16jr_gainlist,
-	das16jr_16_gainlist,
-	das1600_gainlist,
-	das1600_gainlist,
-};
-
-static const struct comedi_lrange *const das16_ai_uni_lranges[] = {
-	&range_unknown,
-	&range_das16jr,
-	&range_das16jr_16,
-	&range_das1x01_unip,
-	&range_das1x02_unip,
-};
-
-static const struct comedi_lrange *const das16_ai_bip_lranges[] = {
-	&range_unknown,
-	&range_das16jr,
-	&range_das16jr_16,
-	&range_das1x01_bip,
-	&range_das1x02_bip,
-};
-
-struct das16_board {
-	const char *name;
-	unsigned int ai_maxdata;
-	unsigned int ai_speed;	/*  max conversion speed in nanosec */
-	unsigned int ai_pg;
-	unsigned int has_ao:1;
-	unsigned int has_8255:1;
-
-	unsigned int i8255_offset;
-
-	unsigned int size;
-	unsigned int id;
-};
-
-static const struct das16_board das16_boards[] = {
-	{
-		.name		= "das-16",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 15000,
-		.ai_pg		= das16_pg_none,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x10,
-		.size		= 0x14,
-		.id		= 0x00,
-	}, {
-		.name		= "das-16g",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 15000,
-		.ai_pg		= das16_pg_none,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x10,
-		.size		= 0x14,
-		.id		= 0x00,
-	}, {
-		.name		= "das-16f",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 8500,
-		.ai_pg		= das16_pg_none,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x10,
-		.size		= 0x14,
-		.id		= 0x00,
-	}, {
-		.name		= "cio-das16",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 20000,
-		.ai_pg		= das16_pg_none,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x10,
-		.size		= 0x14,
-		.id		= 0x80,
-	}, {
-		.name		= "cio-das16/f",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_none,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x10,
-		.size		= 0x14,
-		.id		= 0x80,
-	}, {
-		.name		= "cio-das16/jr",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 7692,
-		.ai_pg		= das16_pg_16jr,
-		.size		= 0x10,
-		.id		= 0x00,
-	}, {
-		.name		= "pc104-das16jr",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 3300,
-		.ai_pg		= das16_pg_16jr,
-		.size		= 0x10,
-		.id		= 0x00,
-	}, {
-		.name		= "cio-das16jr/16",
-		.ai_maxdata	= 0xffff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_16jr_16,
-		.size		= 0x10,
-		.id		= 0x00,
-	}, {
-		.name		= "pc104-das16jr/16",
-		.ai_maxdata	= 0xffff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_16jr_16,
-		.size		= 0x10,
-		.id		= 0x00,
-	}, {
-		.name		= "das-1201",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 20000,
-		.ai_pg		= das16_pg_none,
-		.has_8255	= 1,
-		.i8255_offset	= 0x400,
-		.size		= 0x408,
-		.id		= 0x20,
-	}, {
-		.name		= "das-1202",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_none,
-		.has_8255	= 1,
-		.i8255_offset	= 0x400,
-		.size		= 0x408,
-		.id		= 0x20,
-	}, {
-		.name		= "das-1401",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_1601,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "das-1402",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_1602,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "das-1601",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_1601,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x400,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "das-1602",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_1602,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x400,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "cio-das1401/12",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 6250,
-		.ai_pg		= das16_pg_1601,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "cio-das1402/12",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 6250,
-		.ai_pg		= das16_pg_1602,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "cio-das1402/16",
-		.ai_maxdata	= 0xffff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_1602,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "cio-das1601/12",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 6250,
-		.ai_pg		= das16_pg_1601,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x400,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "cio-das1602/12",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_1602,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x400,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "cio-das1602/16",
-		.ai_maxdata	= 0xffff,
-		.ai_speed	= 10000,
-		.ai_pg		= das16_pg_1602,
-		.has_ao		= 1,
-		.has_8255	= 1,
-		.i8255_offset	= 0x400,
-		.size		= 0x408,
-		.id		= 0xc0,
-	}, {
-		.name		= "cio-das16/330",
-		.ai_maxdata	= 0x0fff,
-		.ai_speed	= 3030,
-		.ai_pg		= das16_pg_16jr,
-		.size		= 0x14,
-		.id		= 0xf0,
-	},
-};
-
-/* Period for timer interrupt in jiffies.  It's a function
- * to deal with possibility of dynamic HZ patches  */
-static inline int timer_period(void)
-{
-	return HZ / 20;
-}
-
-struct das16_private_struct {
-	struct comedi_isadma	*dma;
-	unsigned int		clockbase;
-	unsigned int		ctrl_reg;
-	unsigned int		divisor1;
-	unsigned int		divisor2;
-	struct timer_list	timer;
-	unsigned long		extra_iobase;
-	unsigned int		can_burst:1;
-	unsigned int		timer_running:1;
-};
-
-static void das16_ai_setup_dma(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       unsigned int unread_samples)
-{
-	struct das16_private_struct *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned int max_samples = comedi_bytes_to_samples(s, desc->maxsize);
-	unsigned int nsamples;
-
-	/*
-	 * Determine dma size based on the buffer size plus the number of
-	 * unread samples and the number of samples remaining in the command.
-	 */
-	nsamples = comedi_nsamples_left(s, max_samples + unread_samples);
-	if (nsamples > unread_samples) {
-		nsamples -= unread_samples;
-		desc->size = comedi_samples_to_bytes(s, nsamples);
-		comedi_isadma_program(desc);
-	}
-}
-
-static void das16_interrupt(struct comedi_device *dev)
-{
-	struct das16_private_struct *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned long spin_flags;
-	unsigned int residue;
-	unsigned int nbytes;
-	unsigned int nsamples;
-
-	spin_lock_irqsave(&dev->spinlock, spin_flags);
-	if (!(devpriv->ctrl_reg & DAS16_CTRL_DMAE)) {
-		spin_unlock_irqrestore(&dev->spinlock, spin_flags);
-		return;
-	}
-
-	/*
-	 * The pc104-das16jr (at least) has problems if the dma
-	 * transfer is interrupted in the middle of transferring
-	 * a 16 bit sample.
-	 */
-	residue = comedi_isadma_disable_on_sample(desc->chan,
-						  comedi_bytes_per_sample(s));
-
-	/* figure out how many samples to read */
-	if (residue > desc->size) {
-		dev_err(dev->class_dev, "residue > transfer size!\n");
-		async->events |= COMEDI_CB_ERROR;
-		nbytes = 0;
-	} else {
-		nbytes = desc->size - residue;
-	}
-	nsamples = comedi_bytes_to_samples(s, nbytes);
-
-	/* restart DMA if more samples are needed */
-	if (nsamples) {
-		dma->cur_dma = 1 - dma->cur_dma;
-		das16_ai_setup_dma(dev, s, nsamples);
-	}
-
-	spin_unlock_irqrestore(&dev->spinlock, spin_flags);
-
-	comedi_buf_write_samples(s, desc->virt_addr, nsamples);
-
-	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
-		async->events |= COMEDI_CB_EOA;
-
-	comedi_handle_events(dev, s);
-}
-
-static void das16_timer_interrupt(unsigned long arg)
-{
-	struct comedi_device *dev = (struct comedi_device *)arg;
-	struct das16_private_struct *devpriv = dev->private;
-	unsigned long flags;
-
-	das16_interrupt(dev);
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	if (devpriv->timer_running)
-		mod_timer(&devpriv->timer, jiffies + timer_period());
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-static void das16_ai_set_mux_range(struct comedi_device *dev,
-				   unsigned int first_chan,
-				   unsigned int last_chan,
-				   unsigned int range)
-{
-	const struct das16_board *board = dev->board_ptr;
-
-	/* set multiplexer */
-	outb(first_chan | (last_chan << 4), dev->iobase + DAS16_MUX_REG);
-
-	/* some boards do not have programmable gain */
-	if (board->ai_pg == das16_pg_none)
-		return;
-
-	/*
-	 * Set gain (this is also burst rate register but according to
-	 * computer boards manual, burst rate does nothing, even on
-	 * keithley cards).
-	 */
-	outb((das16_gainlists[board->ai_pg])[range],
-	     dev->iobase + DAS16_GAIN_REG);
-}
-
-static int das16_ai_check_chanlist(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-
-		if (chan != ((chan0 + i) % s->n_chan)) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must be consecutive channels, counting upwards\n");
-			return -EINVAL;
-		}
-
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must all have the same gain\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_cmd *cmd)
-{
-	const struct das16_board *board = dev->board_ptr;
-	struct das16_private_struct *devpriv = dev->private;
-	int err = 0;
-	unsigned int trig_mask;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-
-	trig_mask = TRIG_FOLLOW;
-	if (devpriv->can_burst)
-		trig_mask |= TRIG_TIMER | TRIG_EXT;
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, trig_mask);
-
-	trig_mask = TRIG_TIMER | TRIG_EXT;
-	if (devpriv->can_burst)
-		trig_mask |= TRIG_NOW;
-	err |= comedi_check_trigger_src(&cmd->convert_src, trig_mask);
-
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	/*  make sure scan_begin_src and convert_src dont conflict */
-	if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW)
-		err |= -EINVAL;
-	if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_NOW)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	/* check against maximum frequency */
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    board->ai_speed *
-						    cmd->chanlist_len);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_speed);
-	}
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/*  step 4: fix up arguments */
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= das16_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns,
-				    unsigned int flags)
-{
-	comedi_8254_cascade_ns_to_timer(dev->pacer, &ns, flags);
-	comedi_8254_update_divisors(dev->pacer);
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-
-	return ns;
-}
-
-static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct das16_private_struct *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int first_chan = CR_CHAN(cmd->chanlist[0]);
-	unsigned int last_chan = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]);
-	unsigned int range = CR_RANGE(cmd->chanlist[0]);
-	unsigned int byte;
-	unsigned long flags;
-
-	if (cmd->flags & CMDF_PRIORITY) {
-		dev_err(dev->class_dev,
-			"isa dma transfers cannot be performed with CMDF_PRIORITY, aborting\n");
-		return -1;
-	}
-
-	if (devpriv->can_burst)
-		outb(DAS1600_CONV_DISABLE, dev->iobase + DAS1600_CONV_REG);
-
-	/* set mux and range for chanlist scan */
-	das16_ai_set_mux_range(dev, first_chan, last_chan, range);
-
-	/* set counter mode and counts */
-	cmd->convert_arg = das16_set_pacer(dev, cmd->convert_arg, cmd->flags);
-
-	/* enable counters */
-	byte = 0;
-	if (devpriv->can_burst) {
-		if (cmd->convert_src == TRIG_NOW) {
-			outb(DAS1600_BURST_VAL,
-			     dev->iobase + DAS1600_BURST_REG);
-			/*  set burst length */
-			byte |= DAS16_PACER_BURST_LEN(cmd->chanlist_len - 1);
-		} else {
-			outb(0, dev->iobase + DAS1600_BURST_REG);
-		}
-	}
-	outb(byte, dev->iobase + DAS16_PACER_REG);
-
-	/* set up dma transfer */
-	dma->cur_dma = 0;
-	das16_ai_setup_dma(dev, s, 0);
-
-	/*  set up timer */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->timer_running = 1;
-	devpriv->timer.expires = jiffies + timer_period();
-	add_timer(&devpriv->timer);
-
-	/* enable DMA interrupt with external or internal pacing */
-	devpriv->ctrl_reg &= ~(DAS16_CTRL_INTE | DAS16_CTRL_PACING_MASK);
-	devpriv->ctrl_reg |= DAS16_CTRL_DMAE;
-	if (cmd->convert_src == TRIG_EXT)
-		devpriv->ctrl_reg |= DAS16_CTRL_EXT_PACER;
-	else
-		devpriv->ctrl_reg |= DAS16_CTRL_INT_PACER;
-	outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
-
-	if (devpriv->can_burst)
-		outb(0, dev->iobase + DAS1600_CONV_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return 0;
-}
-
-static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct das16_private_struct *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	/* disable interrupts, dma and pacer clocked conversions */
-	devpriv->ctrl_reg &= ~(DAS16_CTRL_INTE | DAS16_CTRL_DMAE |
-			       DAS16_CTRL_PACING_MASK);
-	outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
-
-	comedi_isadma_disable(dma->chan);
-
-	/*  disable SW timer */
-	if (devpriv->timer_running) {
-		devpriv->timer_running = 0;
-		del_timer(&devpriv->timer);
-	}
-
-	if (devpriv->can_burst)
-		outb(0, dev->iobase + DAS1600_BURST_REG);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return 0;
-}
-
-static void das16_ai_munge(struct comedi_device *dev,
-			   struct comedi_subdevice *s, void *array,
-			   unsigned int num_bytes,
-			   unsigned int start_chan_index)
-{
-	unsigned short *data = array;
-	unsigned int num_samples = comedi_bytes_to_samples(s, num_bytes);
-	unsigned int i;
-
-	for (i = 0; i < num_samples; i++) {
-		data[i] = le16_to_cpu(data[i]);
-		if (s->maxdata == 0x0fff)
-			data[i] >>= 4;
-		data[i] &= s->maxdata;
-	}
-}
-
-static int das16_ai_eoc(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DAS16_STATUS_REG);
-	if ((status & DAS16_STATUS_BUSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int das16_ai_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int ret;
-	int i;
-
-	/* set mux and range for single channel */
-	das16_ai_set_mux_range(dev, chan, chan, range);
-
-	for (i = 0; i < insn->n; i++) {
-		/* trigger conversion */
-		outb_p(0, dev->iobase + DAS16_TRIG_REG);
-
-		ret = comedi_timeout(dev, s, insn, das16_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		val = inb(dev->iobase + DAS16_AI_MSB_REG) << 8;
-		val |= inb(dev->iobase + DAS16_AI_LSB_REG);
-		if (s->maxdata == 0x0fff)
-			val >>= 4;
-		val &= s->maxdata;
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int das16_ao_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		val <<= 4;
-
-		outb(val & 0xff, dev->iobase + DAS16_AO_LSB_REG(chan));
-		outb((val >> 8) & 0xff, dev->iobase + DAS16_AO_MSB_REG(chan));
-	}
-
-	return insn->n;
-}
-
-static int das16_di_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	data[1] = inb(dev->iobase + DAS16_DIO_REG) & 0xf;
-
-	return insn->n;
-}
-
-static int das16_do_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + DAS16_DIO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct das16_board *board = dev->board_ptr;
-	int diobits;
-
-	/* diobits indicates boards */
-	diobits = inb(dev->iobase + DAS16_DIO_REG) & 0xf0;
-	if (board->id != diobits) {
-		dev_err(dev->class_dev,
-			"requested board's id bits are incorrect (0x%x != 0x%x)\n",
-			board->id, diobits);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static void das16_reset(struct comedi_device *dev)
-{
-	outb(0, dev->iobase + DAS16_STATUS_REG);
-	outb(0, dev->iobase + DAS16_CTRL_REG);
-	outb(0, dev->iobase + DAS16_PACER_REG);
-}
-
-static void das16_alloc_dma(struct comedi_device *dev, unsigned int dma_chan)
-{
-	struct das16_private_struct *devpriv = dev->private;
-
-	/* only DMA channels 3 and 1 are valid */
-	if (!(dma_chan == 1 || dma_chan == 3))
-		return;
-
-	/* DMA uses two buffers */
-	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan, dma_chan,
-					   DAS16_DMA_SIZE, COMEDI_ISADMA_READ);
-	if (devpriv->dma) {
-		setup_timer(&devpriv->timer, das16_timer_interrupt,
-			    (unsigned long)dev);
-	}
-}
-
-static void das16_free_dma(struct comedi_device *dev)
-{
-	struct das16_private_struct *devpriv = dev->private;
-
-	if (devpriv) {
-		if (devpriv->timer.data)
-			del_timer_sync(&devpriv->timer);
-		comedi_isadma_free(devpriv->dma);
-	}
-}
-
-static const struct comedi_lrange *das16_ai_range(struct comedi_device *dev,
-						  struct comedi_subdevice *s,
-						  struct comedi_devconfig *it,
-						  unsigned int pg_type,
-						  unsigned int status)
-{
-	unsigned int min = it->options[4];
-	unsigned int max = it->options[5];
-
-	/* get any user-defined input range */
-	if (pg_type == das16_pg_none && (min || max)) {
-		struct comedi_lrange *lrange;
-		struct comedi_krange *krange;
-
-		/* allocate single-range range table */
-		lrange = comedi_alloc_spriv(s,
-					    sizeof(*lrange) + sizeof(*krange));
-		if (!lrange)
-			return &range_unknown;
-
-		/* initialize ai range */
-		lrange->length = 1;
-		krange = lrange->range;
-		krange->min = min;
-		krange->max = max;
-		krange->flags = UNIT_volt;
-
-		return lrange;
-	}
-
-	/* use software programmable range */
-	if (status & DAS16_STATUS_UNIPOLAR)
-		return das16_ai_uni_lranges[pg_type];
-	return das16_ai_bip_lranges[pg_type];
-}
-
-static const struct comedi_lrange *das16_ao_range(struct comedi_device *dev,
-						  struct comedi_subdevice *s,
-						  struct comedi_devconfig *it)
-{
-	unsigned int min = it->options[6];
-	unsigned int max = it->options[7];
-
-	/* get any user-defined output range */
-	if (min || max) {
-		struct comedi_lrange *lrange;
-		struct comedi_krange *krange;
-
-		/* allocate single-range range table */
-		lrange = comedi_alloc_spriv(s,
-					    sizeof(*lrange) + sizeof(*krange));
-		if (!lrange)
-			return &range_unknown;
-
-		/* initialize ao range */
-		lrange->length = 1;
-		krange = lrange->range;
-		krange->min = min;
-		krange->max = max;
-		krange->flags = UNIT_volt;
-
-		return lrange;
-	}
-
-	return &range_unknown;
-}
-
-static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct das16_board *board = dev->board_ptr;
-	struct das16_private_struct *devpriv;
-	struct comedi_subdevice *s;
-	unsigned int osc_base;
-	unsigned int status;
-	int ret;
-
-	/*  check that clock setting is valid */
-	if (it->options[3]) {
-		if (it->options[3] != 1 && it->options[3] != 10) {
-			dev_err(dev->class_dev,
-				"Invalid option. Master clock must be set to 1 or 10 (MHz)\n");
-			return -EINVAL;
-		}
-	}
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	if (board->size < 0x400) {
-		ret = comedi_request_region(dev, it->options[0], board->size);
-		if (ret)
-			return ret;
-	} else {
-		ret = comedi_request_region(dev, it->options[0], 0x10);
-		if (ret)
-			return ret;
-		/* Request an additional region for the 8255 */
-		ret = __comedi_request_region(dev, dev->iobase + 0x400,
-					      board->size & 0x3ff);
-		if (ret)
-			return ret;
-		devpriv->extra_iobase = dev->iobase + 0x400;
-		devpriv->can_burst = 1;
-	}
-
-	/*  probe id bits to make sure they are consistent */
-	if (das16_probe(dev, it))
-		return -EINVAL;
-
-	/*  get master clock speed */
-	osc_base = I8254_OSC_BASE_1MHZ;
-	if (devpriv->can_burst) {
-		status = inb(dev->iobase + DAS1600_STATUS_REG);
-		if (status & DAS1600_STATUS_CLK_10MHZ)
-			osc_base = I8254_OSC_BASE_10MHZ;
-	} else {
-		if (it->options[3])
-			osc_base = I8254_OSC_BASE_1MHZ / it->options[3];
-	}
-
-	dev->pacer = comedi_8254_init(dev->iobase + DAS16_TIMER_BASE_REG,
-				      osc_base, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	das16_alloc_dma(dev, it->options[2]);
-
-	ret = comedi_alloc_subdevices(dev, 4 + board->has_8255);
-	if (ret)
-		return ret;
-
-	status = inb(dev->iobase + DAS16_STATUS_REG);
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE;
-	if (status & DAS16_STATUS_MUXBIT) {
-		s->subdev_flags	|= SDF_GROUND;
-		s->n_chan	= 16;
-	} else {
-		s->subdev_flags	|= SDF_DIFF;
-		s->n_chan	= 8;
-	}
-	s->len_chanlist	= s->n_chan;
-	s->maxdata	= board->ai_maxdata;
-	s->range_table	= das16_ai_range(dev, s, it, board->ai_pg, status);
-	s->insn_read	= das16_ai_insn_read;
-	if (devpriv->dma) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->do_cmdtest	= das16_cmd_test;
-		s->do_cmd	= das16_cmd_exec;
-		s->cancel	= das16_cancel;
-		s->munge	= das16_ai_munge;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	if (board->has_ao) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= 2;
-		s->maxdata	= 0x0fff;
-		s->range_table	= das16_ao_range(dev, s, it);
-		s->insn_write	= das16_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= das16_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= das16_do_insn_bits;
-
-	/* initialize digital output lines */
-	outb(s->state, dev->iobase + DAS16_DIO_REG);
-
-	/* 8255 Digital I/O subdevice */
-	if (board->has_8255) {
-		s = &dev->subdevices[4];
-		ret = subdev_8255_init(dev, s, NULL, board->i8255_offset);
-		if (ret)
-			return ret;
-	}
-
-	das16_reset(dev);
-	/* set the interrupt level */
-	devpriv->ctrl_reg = DAS16_CTRL_IRQ(dev->irq);
-	outb(devpriv->ctrl_reg, dev->iobase + DAS16_CTRL_REG);
-
-	if (devpriv->can_burst) {
-		outb(DAS1600_ENABLE_VAL, dev->iobase + DAS1600_ENABLE_REG);
-		outb(0, dev->iobase + DAS1600_CONV_REG);
-		outb(0, dev->iobase + DAS1600_BURST_REG);
-	}
-
-	return 0;
-}
-
-static void das16_detach(struct comedi_device *dev)
-{
-	const struct das16_board *board = dev->board_ptr;
-	struct das16_private_struct *devpriv = dev->private;
-
-	if (devpriv) {
-		if (dev->iobase)
-			das16_reset(dev);
-		das16_free_dma(dev);
-
-		if (devpriv->extra_iobase)
-			release_region(devpriv->extra_iobase,
-				       board->size & 0x3ff);
-	}
-
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver das16_driver = {
-	.driver_name	= "das16",
-	.module		= THIS_MODULE,
-	.attach		= das16_attach,
-	.detach		= das16_detach,
-	.board_name	= &das16_boards[0].name,
-	.num_names	= ARRAY_SIZE(das16_boards),
-	.offset		= sizeof(das16_boards[0]),
-};
-module_comedi_driver(das16_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for DAS16 compatible boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
deleted file mode 100644
index 3a37373fbb6f..000000000000
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ /dev/null
@@ -1,647 +0,0 @@
-/*
-    comedi/drivers/das16m1.c
-    CIO-DAS16/M1 driver
-    Author: Frank Mori Hess, based on code from the das16
-      driver.
-    Copyright (C) 2001 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: das16m1
-Description: CIO-DAS16/M1
-Author: Frank Mori Hess <fmhess@users.sourceforge.net>
-Devices: [Measurement Computing] CIO-DAS16/M1 (das16m1)
-Status: works
-
-This driver supports a single board - the CIO-DAS16/M1.
-As far as I know, there are no other boards that have
-the same register layout.  Even the CIO-DAS16/M1/16 is
-significantly different.
-
-I was _barely_ able to reach the full 1 MHz capability
-of this board, using a hard real-time interrupt
-(set the TRIG_RT flag in your struct comedi_cmd and use
-rtlinux or RTAI).  The board can't do dma, so the bottleneck is
-pulling the data across the ISA bus.  I timed the interrupt
-handler, and it took my computer ~470 microseconds to pull 512
-samples from the board.  So at 1 Mhz sampling rate,
-expect your CPU to be spending almost all of its
-time in the interrupt handler.
-
-This board has some unusual restrictions for its channel/gain list.  If the
-list has 2 or more channels in it, then two conditions must be satisfied:
-(1) - even/odd channels must appear at even/odd indices in the list
-(2) - the list must have an even number of entries.
-
-Options:
-	[0] - base io address
-	[1] - irq (optional, but you probably want it)
-
-irq can be omitted, although the cmd interface will not work without it.
-*/
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-#include "8255.h"
-#include "comedi_8254.h"
-
-#define DAS16M1_SIZE2 8
-
-#define FIFO_SIZE 1024		/*  1024 sample fifo */
-
-/*
-    CIO-DAS16_M1.pdf
-
-    "cio-das16/m1"
-
-  0		a/d bits 0-3, mux		start 12 bit
-  1		a/d bits 4-11		unused
-  2		status		control
-  3		di 4 bit		do 4 bit
-  4		unused			clear interrupt
-  5		interrupt, pacer
-  6		channel/gain queue address
-  7		channel/gain queue data
-  89ab		8254
-  cdef		8254
-  400		8255
-  404-407	8254
-
-*/
-
-#define DAS16M1_AI             0	/*  16-bit wide register */
-#define   AI_CHAN(x)             ((x) & 0xf)
-#define DAS16M1_CS             2
-#define   EXT_TRIG_BIT           0x1
-#define   OVRUN                  0x20
-#define   IRQDATA                0x80
-#define DAS16M1_DIO            3
-#define DAS16M1_CLEAR_INTR     4
-#define DAS16M1_INTR_CONTROL   5
-#define   EXT_PACER              0x2
-#define   INT_PACER              0x3
-#define   PACER_MASK             0x3
-#define   INTE                   0x80
-#define DAS16M1_QUEUE_ADDR     6
-#define DAS16M1_QUEUE_DATA     7
-#define   Q_CHAN(x)              ((x) & 0x7)
-#define   Q_RANGE(x)             (((x) & 0xf) << 4)
-#define   UNIPOLAR               0x40
-#define DAS16M1_8254_FIRST             0x8
-#define DAS16M1_8254_SECOND            0xc
-#define DAS16M1_82C55                  0x400
-#define DAS16M1_8254_THIRD             0x404
-
-static const struct comedi_lrange range_das16m1 = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		BIP_RANGE(10)
-	}
-};
-
-struct das16m1_private_struct {
-	struct comedi_8254 *counter;
-	unsigned int control_state;
-	unsigned int adc_count;	/*  number of samples completed */
-	/* initial value in lower half of hardware conversion counter,
-	 * needed to keep track of whether new count has been loaded into
-	 * counter yet (loaded by first sample conversion) */
-	u16 initial_hw_count;
-	unsigned short ai_buffer[FIFO_SIZE];
-	unsigned long extra_iobase;
-};
-
-static inline unsigned short munge_sample(unsigned short data)
-{
-	return (data >> 4) & 0xfff;
-}
-
-static void munge_sample_array(unsigned short *array, unsigned int num_elements)
-{
-	unsigned int i;
-
-	for (i = 0; i < num_elements; i++)
-		array[i] = munge_sample(array[i]);
-}
-
-static int das16m1_ai_check_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	int i;
-
-	if (cmd->chanlist_len == 1)
-		return 0;
-
-	if ((cmd->chanlist_len % 2) != 0) {
-		dev_dbg(dev->class_dev,
-			"chanlist must be of even length or length 1\n");
-		return -EINVAL;
-	}
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if ((i % 2) != (chan % 2)) {
-			dev_dbg(dev->class_dev,
-				"even/odd channels must go have even/odd chanlist indices\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int das16m1_cmd_test(struct comedi_device *dev,
-			    struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 1000);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		unsigned int arg = cmd->convert_arg;
-
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= das16m1_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int das16m1_cmd_exec(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct das16m1_private_struct *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int byte, i;
-
-	/* disable interrupts and internal pacer */
-	devpriv->control_state &= ~INTE & ~PACER_MASK;
-	outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL);
-
-	/*  set software count */
-	devpriv->adc_count = 0;
-
-	/*
-	 * Initialize lower half of hardware counter, used to determine how
-	 * many samples are in fifo.  Value doesn't actually load into counter
-	 * until counter's next clock (the next a/d conversion).
-	 */
-	comedi_8254_set_mode(devpriv->counter, 1, I8254_MODE2 | I8254_BINARY);
-	comedi_8254_write(devpriv->counter, 1, 0);
-
-	/*
-	 * Remember current reading of counter so we know when counter has
-	 * actually been loaded.
-	 */
-	devpriv->initial_hw_count = comedi_8254_read(devpriv->counter, 1);
-
-	/* setup channel/gain queue */
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		outb(i, dev->iobase + DAS16M1_QUEUE_ADDR);
-		byte =
-		    Q_CHAN(CR_CHAN(cmd->chanlist[i])) |
-		    Q_RANGE(CR_RANGE(cmd->chanlist[i]));
-		outb(byte, dev->iobase + DAS16M1_QUEUE_DATA);
-	}
-
-	/* enable interrupts and set internal pacer counter mode and counts */
-	devpriv->control_state &= ~PACER_MASK;
-	if (cmd->convert_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-		devpriv->control_state |= INT_PACER;
-	} else {	/* TRIG_EXT */
-		devpriv->control_state |= EXT_PACER;
-	}
-
-	/*  set control & status register */
-	byte = 0;
-	/* if we are using external start trigger (also board dislikes having
-	 * both start and conversion triggers external simultaneously) */
-	if (cmd->start_src == TRIG_EXT && cmd->convert_src != TRIG_EXT)
-		byte |= EXT_TRIG_BIT;
-
-	outb(byte, dev->iobase + DAS16M1_CS);
-	/* clear interrupt bit */
-	outb(0, dev->iobase + DAS16M1_CLEAR_INTR);
-
-	devpriv->control_state |= INTE;
-	outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL);
-
-	return 0;
-}
-
-static int das16m1_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct das16m1_private_struct *devpriv = dev->private;
-
-	devpriv->control_state &= ~INTE & ~PACER_MASK;
-	outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL);
-
-	return 0;
-}
-
-static int das16m1_ai_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DAS16M1_CS);
-	if (status & IRQDATA)
-		return 0;
-	return -EBUSY;
-}
-
-static int das16m1_ai_rinsn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	struct das16m1_private_struct *devpriv = dev->private;
-	int ret;
-	int n;
-	int byte;
-
-	/* disable interrupts and internal pacer */
-	devpriv->control_state &= ~INTE & ~PACER_MASK;
-	outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL);
-
-	/* setup channel/gain queue */
-	outb(0, dev->iobase + DAS16M1_QUEUE_ADDR);
-	byte =
-	    Q_CHAN(CR_CHAN(insn->chanspec)) | Q_RANGE(CR_RANGE(insn->chanspec));
-	outb(byte, dev->iobase + DAS16M1_QUEUE_DATA);
-
-	for (n = 0; n < insn->n; n++) {
-		/* clear IRQDATA bit */
-		outb(0, dev->iobase + DAS16M1_CLEAR_INTR);
-		/* trigger conversion */
-		outb(0, dev->iobase);
-
-		ret = comedi_timeout(dev, s, insn, das16m1_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[n] = munge_sample(inw(dev->iobase));
-	}
-
-	return n;
-}
-
-static int das16m1_di_rbits(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned int bits;
-
-	bits = inb(dev->iobase + DAS16M1_DIO) & 0xf;
-	data[1] = bits;
-	data[0] = 0;
-
-	return insn->n;
-}
-
-static int das16m1_do_wbits(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + DAS16M1_DIO);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void das16m1_handler(struct comedi_device *dev, unsigned int status)
-{
-	struct das16m1_private_struct *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	struct comedi_async *async;
-	struct comedi_cmd *cmd;
-	u16 num_samples;
-	u16 hw_counter;
-
-	s = dev->read_subdev;
-	async = s->async;
-	cmd = &async->cmd;
-
-	/* figure out how many samples are in fifo */
-	hw_counter = comedi_8254_read(devpriv->counter, 1);
-	/* make sure hardware counter reading is not bogus due to initial value
-	 * not having been loaded yet */
-	if (devpriv->adc_count == 0 &&
-	    hw_counter == devpriv->initial_hw_count) {
-		num_samples = 0;
-	} else {
-		/* The calculation of num_samples looks odd, but it uses the
-		 * following facts. 16 bit hardware counter is initialized with
-		 * value of zero (which really means 0x1000).  The counter
-		 * decrements by one on each conversion (when the counter
-		 * decrements from zero it goes to 0xffff).  num_samples is a
-		 * 16 bit variable, so it will roll over in a similar fashion
-		 * to the hardware counter.  Work it out, and this is what you
-		 * get. */
-		num_samples = -hw_counter - devpriv->adc_count;
-	}
-	/*  check if we only need some of the points */
-	if (cmd->stop_src == TRIG_COUNT) {
-		if (num_samples > cmd->stop_arg * cmd->chanlist_len)
-			num_samples = cmd->stop_arg * cmd->chanlist_len;
-	}
-	/*  make sure we dont try to get too many points if fifo has overrun */
-	if (num_samples > FIFO_SIZE)
-		num_samples = FIFO_SIZE;
-	insw(dev->iobase, devpriv->ai_buffer, num_samples);
-	munge_sample_array(devpriv->ai_buffer, num_samples);
-	comedi_buf_write_samples(s, devpriv->ai_buffer, num_samples);
-	devpriv->adc_count += num_samples;
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		if (devpriv->adc_count >= cmd->stop_arg * cmd->chanlist_len) {
-			/* end of acquisition */
-			async->events |= COMEDI_CB_EOA;
-		}
-	}
-
-	/* this probably won't catch overruns since the card doesn't generate
-	 * overrun interrupts, but we might as well try */
-	if (status & OVRUN) {
-		async->events |= COMEDI_CB_ERROR;
-		dev_err(dev->class_dev, "fifo overflow\n");
-	}
-
-	comedi_handle_events(dev, s);
-}
-
-static int das16m1_poll(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	unsigned long flags;
-	unsigned int status;
-
-	/*  prevent race with interrupt handler */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	status = inb(dev->iobase + DAS16M1_CS);
-	das16m1_handler(dev, status);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return comedi_buf_n_bytes_ready(s);
-}
-
-static irqreturn_t das16m1_interrupt(int irq, void *d)
-{
-	int status;
-	struct comedi_device *dev = d;
-
-	if (!dev->attached) {
-		dev_err(dev->class_dev, "premature interrupt\n");
-		return IRQ_HANDLED;
-	}
-	/*  prevent race with comedi_poll() */
-	spin_lock(&dev->spinlock);
-
-	status = inb(dev->iobase + DAS16M1_CS);
-
-	if ((status & (IRQDATA | OVRUN)) == 0) {
-		dev_err(dev->class_dev, "spurious interrupt\n");
-		spin_unlock(&dev->spinlock);
-		return IRQ_NONE;
-	}
-
-	das16m1_handler(dev, status);
-
-	/* clear interrupt */
-	outb(0, dev->iobase + DAS16M1_CLEAR_INTR);
-
-	spin_unlock(&dev->spinlock);
-	return IRQ_HANDLED;
-}
-
-static int das16m1_irq_bits(unsigned int irq)
-{
-	switch (irq) {
-	case 10:
-		return 0x0;
-	case 11:
-		return 0x1;
-	case 12:
-		return 0x2;
-	case 15:
-		return 0x3;
-	case 2:
-		return 0x4;
-	case 3:
-		return 0x5;
-	case 5:
-		return 0x6;
-	case 7:
-		return 0x7;
-	default:
-		return 0x0;
-	}
-}
-
-/*
- * Options list:
- *   0  I/O base
- *   1  IRQ
- */
-static int das16m1_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct das16m1_private_struct *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-	/* Request an additional region for the 8255 */
-	ret = __comedi_request_region(dev, dev->iobase + DAS16M1_82C55,
-				      DAS16M1_SIZE2);
-	if (ret)
-		return ret;
-	devpriv->extra_iobase = dev->iobase + DAS16M1_82C55;
-
-	/* only irqs 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15 are valid */
-	if ((1 << it->options[1]) & 0xdcfc) {
-		ret = request_irq(it->options[1], das16m1_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	dev->pacer = comedi_8254_init(dev->iobase + DAS16M1_8254_SECOND,
-				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	devpriv->counter = comedi_8254_init(dev->iobase + DAS16M1_8254_FIRST,
-					    0, I8254_IO8, 0);
-	if (!devpriv->counter)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* ai */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_DIFF;
-	s->n_chan = 8;
-	s->maxdata = (1 << 12) - 1;
-	s->range_table = &range_das16m1;
-	s->insn_read = das16m1_ai_rinsn;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->len_chanlist = 256;
-		s->do_cmdtest = das16m1_cmd_test;
-		s->do_cmd = das16m1_cmd_exec;
-		s->cancel = das16m1_cancel;
-		s->poll = das16m1_poll;
-	}
-
-	s = &dev->subdevices[1];
-	/* di */
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 4;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = das16m1_di_rbits;
-
-	s = &dev->subdevices[2];
-	/* do */
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 4;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = das16m1_do_wbits;
-
-	s = &dev->subdevices[3];
-	/* 8255 */
-	ret = subdev_8255_init(dev, s, NULL, DAS16M1_82C55);
-	if (ret)
-		return ret;
-
-	/*  initialize digital output lines */
-	outb(0, dev->iobase + DAS16M1_DIO);
-
-	/* set the interrupt level */
-	devpriv->control_state = das16m1_irq_bits(dev->irq) << 4;
-	outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL);
-
-	return 0;
-}
-
-static void das16m1_detach(struct comedi_device *dev)
-{
-	struct das16m1_private_struct *devpriv = dev->private;
-
-	if (devpriv) {
-		if (devpriv->extra_iobase)
-			release_region(devpriv->extra_iobase, DAS16M1_SIZE2);
-		kfree(devpriv->counter);
-	}
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver das16m1_driver = {
-	.driver_name	= "das16m1",
-	.module		= THIS_MODULE,
-	.attach		= das16m1_attach,
-	.detach		= das16m1_detach,
-};
-module_comedi_driver(das16m1_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
deleted file mode 100644
index 940781183fac..000000000000
--- a/drivers/staging/comedi/drivers/das1800.c
+++ /dev/null
@@ -1,1458 +0,0 @@
-/*
-    comedi/drivers/das1800.c
-    Driver for Keitley das1700/das1800 series boards
-    Copyright (C) 2000 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: das1800
-Description: Keithley Metrabyte DAS1800 (& compatibles)
-Author: Frank Mori Hess <fmhess@users.sourceforge.net>
-Devices: [Keithley Metrabyte] DAS-1701ST (das-1701st),
-  DAS-1701ST-DA (das-1701st-da), DAS-1701/AO (das-1701ao),
-  DAS-1702ST (das-1702st), DAS-1702ST-DA (das-1702st-da),
-  DAS-1702HR (das-1702hr), DAS-1702HR-DA (das-1702hr-da),
-  DAS-1702/AO (das-1702ao), DAS-1801ST (das-1801st),
-  DAS-1801ST-DA (das-1801st-da), DAS-1801HC (das-1801hc),
-  DAS-1801AO (das-1801ao), DAS-1802ST (das-1802st),
-  DAS-1802ST-DA (das-1802st-da), DAS-1802HR (das-1802hr),
-  DAS-1802HR-DA (das-1802hr-da), DAS-1802HC (das-1802hc),
-  DAS-1802AO (das-1802ao)
-Status: works
-
-The waveform analog output on the 'ao' cards is not supported.
-If you need it, send me (Frank Hess) an email.
-
-Configuration options:
-  [0] - I/O port base address
-  [1] - IRQ (optional, required for timed or externally triggered conversions)
-  [2] - DMA0 (optional, requires irq)
-  [3] - DMA1 (optional, requires irq and dma0)
-*/
-/*
-
-This driver supports the following Keithley boards:
-
-das-1701st
-das-1701st-da
-das-1701ao
-das-1702st
-das-1702st-da
-das-1702hr
-das-1702hr-da
-das-1702ao
-das-1801st
-das-1801st-da
-das-1801hc
-das-1801ao
-das-1802st
-das-1802st-da
-das-1802hr
-das-1802hr-da
-das-1802hc
-das-1802ao
-
-Options:
-	[0] - base io address
-	[1] - irq (optional, required for timed or externally triggered conversions)
-	[2] - dma0 (optional, requires irq)
-	[3] - dma1 (optional, requires irq and dma0)
-
-irq can be omitted, although the cmd interface will not work without it.
-
-analog input cmd triggers supported:
-	start_src:      TRIG_NOW | TRIG_EXT
-	scan_begin_src: TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT
-	scan_end_src:   TRIG_COUNT
-	convert_src:    TRIG_TIMER | TRIG_EXT (TRIG_EXT requires scan_begin_src == TRIG_FOLLOW)
-	stop_src:       TRIG_COUNT | TRIG_EXT | TRIG_NONE
-
-scan_begin_src triggers TRIG_TIMER and TRIG_EXT use the card's
-'burst mode' which limits the valid conversion time to 64 microseconds
-(convert_arg <= 64000).  This limitation does not apply if scan_begin_src
-is TRIG_FOLLOW.
-
-NOTES:
-Only the DAS-1801ST has been tested by me.
-Unipolar and bipolar ranges cannot be mixed in the channel/gain list.
-
-TODO:
-	Make it automatically allocate irq and dma channels if they are not specified
-	Add support for analog out on 'ao' cards
-	read insn for analog out
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-#include "comedi_8254.h"
-
-/* misc. defines */
-#define DAS1800_SIZE           16	/* uses 16 io addresses */
-#define FIFO_SIZE              1024	/*  1024 sample fifo */
-#define UNIPOLAR               0x4	/*  bit that determines whether input range is uni/bipolar */
-#define DMA_BUF_SIZE           0x1ff00	/*  size in bytes of dma buffers */
-
-/* Registers for the das1800 */
-#define DAS1800_FIFO            0x0
-#define DAS1800_QRAM            0x0
-#define DAS1800_DAC             0x0
-#define DAS1800_SELECT          0x2
-#define   ADC                     0x0
-#define   QRAM                    0x1
-#define   DAC(a)                  (0x2 + a)
-#define DAS1800_DIGITAL         0x3
-#define DAS1800_CONTROL_A       0x4
-#define   FFEN                    0x1
-#define   CGEN                    0x4
-#define   CGSL                    0x8
-#define   TGEN                    0x10
-#define   TGSL                    0x20
-#define   ATEN                    0x80
-#define DAS1800_CONTROL_B       0x5
-#define   DMA_CH5                 0x1
-#define   DMA_CH6                 0x2
-#define   DMA_CH7                 0x3
-#define   DMA_CH5_CH6             0x5
-#define   DMA_CH6_CH7             0x6
-#define   DMA_CH7_CH5             0x7
-#define   DMA_ENABLED             0x3	/* mask used to determine if dma is enabled */
-#define   DMA_DUAL                0x4
-#define   IRQ3                    0x8
-#define   IRQ5                    0x10
-#define   IRQ7                    0x18
-#define   IRQ10                   0x28
-#define   IRQ11                   0x30
-#define   IRQ15                   0x38
-#define   FIMD                    0x40
-#define DAS1800_CONTROL_C       0X6
-#define   IPCLK                   0x1
-#define   XPCLK                   0x3
-#define   BMDE                    0x4
-#define   CMEN                    0x8
-#define   UQEN                    0x10
-#define   SD                      0x40
-#define   UB                      0x80
-#define DAS1800_STATUS          0x7
-/* bits that prevent interrupt status bits (and CVEN) from being cleared on write */
-#define   CLEAR_INTR_MASK         (CVEN_MASK | 0x1f)
-#define   INT                     0x1
-#define   DMATC                   0x2
-#define   CT0TC                   0x8
-#define   OVF                     0x10
-#define   FHF                     0x20
-#define   FNE                     0x40
-#define   CVEN_MASK               0x40	/*  masks CVEN on write */
-#define   CVEN                    0x80
-#define DAS1800_BURST_LENGTH    0x8
-#define DAS1800_BURST_RATE      0x9
-#define DAS1800_QRAM_ADDRESS    0xa
-#define DAS1800_COUNTER         0xc
-
-#define IOBASE2                   0x400	/* offset of additional ioports used on 'ao' cards */
-
-enum {
-	das1701st, das1701st_da, das1702st, das1702st_da, das1702hr,
-	das1702hr_da,
-	das1701ao, das1702ao, das1801st, das1801st_da, das1802st, das1802st_da,
-	das1802hr, das1802hr_da, das1801hc, das1802hc, das1801ao, das1802ao
-};
-
-/* analog input ranges */
-static const struct comedi_lrange range_ai_das1801 = {
-	8, {
-		BIP_RANGE(5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.02),
-		UNI_RANGE(5),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.02)
-	}
-};
-
-static const struct comedi_lrange range_ai_das1802 = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-struct das1800_board {
-	const char *name;
-	int ai_speed;		/* max conversion period in nanoseconds */
-	int resolution;		/* bits of ai resolution */
-	int qram_len;		/* length of card's channel / gain queue */
-	int common;		/* supports AREF_COMMON flag */
-	int do_n_chan;		/* number of digital output channels */
-	int ao_ability;		/* 0 == no analog out, 1 == basic analog out, 2 == waveform analog out */
-	int ao_n_chan;		/* number of analog out channels */
-	const struct comedi_lrange *range_ai;	/* available input ranges */
-};
-
-/* Warning: the maximum conversion speeds listed below are
- * not always achievable depending on board setup (see
- * user manual.)
- */
-static const struct das1800_board das1800_boards[] = {
-	{
-	 .name = "das-1701st",
-	 .ai_speed = 6250,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 0,
-	 .ao_n_chan = 0,
-	 .range_ai = &range_ai_das1801,
-	 },
-	{
-	 .name = "das-1701st-da",
-	 .ai_speed = 6250,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 1,
-	 .ao_n_chan = 4,
-	 .range_ai = &range_ai_das1801,
-	 },
-	{
-	 .name = "das-1702st",
-	 .ai_speed = 6250,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 0,
-	 .ao_n_chan = 0,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1702st-da",
-	 .ai_speed = 6250,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 1,
-	 .ao_n_chan = 4,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1702hr",
-	 .ai_speed = 20000,
-	 .resolution = 16,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 0,
-	 .ao_n_chan = 0,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1702hr-da",
-	 .ai_speed = 20000,
-	 .resolution = 16,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 1,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1701ao",
-	 .ai_speed = 6250,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 2,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1801,
-	 },
-	{
-	 .name = "das-1702ao",
-	 .ai_speed = 6250,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 2,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1801st",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 0,
-	 .ao_n_chan = 0,
-	 .range_ai = &range_ai_das1801,
-	 },
-	{
-	 .name = "das-1801st-da",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 0,
-	 .ao_n_chan = 4,
-	 .range_ai = &range_ai_das1801,
-	 },
-	{
-	 .name = "das-1802st",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 0,
-	 .ao_n_chan = 0,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1802st-da",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 1,
-	 .ao_n_chan = 4,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1802hr",
-	 .ai_speed = 10000,
-	 .resolution = 16,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 0,
-	 .ao_n_chan = 0,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1802hr-da",
-	 .ai_speed = 10000,
-	 .resolution = 16,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 1,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1801hc",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 64,
-	 .common = 0,
-	 .do_n_chan = 8,
-	 .ao_ability = 1,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1801,
-	 },
-	{
-	 .name = "das-1802hc",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 64,
-	 .common = 0,
-	 .do_n_chan = 8,
-	 .ao_ability = 1,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1802,
-	 },
-	{
-	 .name = "das-1801ao",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 2,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1801,
-	 },
-	{
-	 .name = "das-1802ao",
-	 .ai_speed = 3000,
-	 .resolution = 12,
-	 .qram_len = 256,
-	 .common = 1,
-	 .do_n_chan = 4,
-	 .ao_ability = 2,
-	 .ao_n_chan = 2,
-	 .range_ai = &range_ai_das1802,
-	 },
-};
-
-struct das1800_private {
-	struct comedi_isadma *dma;
-	int irq_dma_bits;	/* bits for control register b */
-	/* dma bits for control register b, stored so that dma can be
-	 * turned on and off */
-	int dma_bits;
-	uint16_t *fifo_buf;	/* bounce buffer for analog input FIFO */
-	unsigned long iobase2;	/* secondary io address used for analog out on 'ao' boards */
-	unsigned short ao_update_bits;	/* remembers the last write to the
-					 * 'update' dac */
-};
-
-/* analog out range for 'ao' boards */
-/*
-static const struct comedi_lrange range_ao_2 = {
-	2, {
-		BIP_RANGE(10),
-		BIP_RANGE(5)
-	}
-};
-*/
-
-static inline uint16_t munge_bipolar_sample(const struct comedi_device *dev,
-					    uint16_t sample)
-{
-	const struct das1800_board *board = dev->board_ptr;
-
-	sample += 1 << (board->resolution - 1);
-	return sample;
-}
-
-static void munge_data(struct comedi_device *dev, uint16_t *array,
-		       unsigned int num_elements)
-{
-	unsigned int i;
-	int unipolar;
-
-	/* see if card is using a unipolar or bipolar range so we can munge data correctly */
-	unipolar = inb(dev->iobase + DAS1800_CONTROL_C) & UB;
-
-	/* convert to unsigned type if we are in a bipolar mode */
-	if (!unipolar) {
-		for (i = 0; i < num_elements; i++)
-			array[i] = munge_bipolar_sample(dev, array[i]);
-	}
-}
-
-static void das1800_handle_fifo_half_full(struct comedi_device *dev,
-					  struct comedi_subdevice *s)
-{
-	struct das1800_private *devpriv = dev->private;
-	unsigned int nsamples = comedi_nsamples_left(s, FIFO_SIZE / 2);
-
-	insw(dev->iobase + DAS1800_FIFO, devpriv->fifo_buf, nsamples);
-	munge_data(dev, devpriv->fifo_buf, nsamples);
-	comedi_buf_write_samples(s, devpriv->fifo_buf, nsamples);
-}
-
-static void das1800_handle_fifo_not_empty(struct comedi_device *dev,
-					  struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned short dpnt;
-	int unipolar;
-
-	unipolar = inb(dev->iobase + DAS1800_CONTROL_C) & UB;
-
-	while (inb(dev->iobase + DAS1800_STATUS) & FNE) {
-		dpnt = inw(dev->iobase + DAS1800_FIFO);
-		/* convert to unsigned type */
-		dpnt = munge_bipolar_sample(dev, dpnt);
-		comedi_buf_write_samples(s, &dpnt, 1);
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    s->async->scans_done >= cmd->stop_arg)
-			break;
-	}
-}
-
-/* Utility function used by das1800_flush_dma() and das1800_handle_dma() */
-static void das1800_flush_dma_channel(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_isadma_desc *desc)
-{
-	unsigned int residue = comedi_isadma_disable(desc->chan);
-	unsigned int nbytes = desc->size - residue;
-	unsigned int nsamples;
-
-	/*  figure out how many points to read */
-	nsamples = comedi_bytes_to_samples(s, nbytes);
-	nsamples = comedi_nsamples_left(s, nsamples);
-
-	munge_data(dev, desc->virt_addr, nsamples);
-	comedi_buf_write_samples(s, desc->virt_addr, nsamples);
-}
-
-/* flushes remaining data from board when external trigger has stopped acquisition
- * and we are using dma transfers */
-static void das1800_flush_dma(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct das1800_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	const int dual_dma = devpriv->irq_dma_bits & DMA_DUAL;
-
-	das1800_flush_dma_channel(dev, s, desc);
-
-	if (dual_dma) {
-		/*  switch to other channel and flush it */
-		dma->cur_dma = 1 - dma->cur_dma;
-		desc = &dma->desc[dma->cur_dma];
-		das1800_flush_dma_channel(dev, s, desc);
-	}
-
-	/*  get any remaining samples in fifo */
-	das1800_handle_fifo_not_empty(dev, s);
-}
-
-static void das1800_handle_dma(struct comedi_device *dev,
-			       struct comedi_subdevice *s, unsigned int status)
-{
-	struct das1800_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	const int dual_dma = devpriv->irq_dma_bits & DMA_DUAL;
-
-	das1800_flush_dma_channel(dev, s, desc);
-
-	/* re-enable dma channel */
-	comedi_isadma_program(desc);
-
-	if (status & DMATC) {
-		/*  clear DMATC interrupt bit */
-		outb(CLEAR_INTR_MASK & ~DMATC, dev->iobase + DAS1800_STATUS);
-		/*  switch dma channels for next time, if appropriate */
-		if (dual_dma)
-			dma->cur_dma = 1 - dma->cur_dma;
-	}
-}
-
-static int das1800_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct das1800_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc;
-	int i;
-
-	outb(0x0, dev->iobase + DAS1800_STATUS);	/* disable conversions */
-	outb(0x0, dev->iobase + DAS1800_CONTROL_B);	/* disable interrupts and dma */
-	outb(0x0, dev->iobase + DAS1800_CONTROL_A);	/* disable and clear fifo and stop triggering */
-
-	for (i = 0; i < 2; i++) {
-		desc = &dma->desc[i];
-		if (desc->chan)
-			comedi_isadma_disable(desc->chan);
-	}
-
-	return 0;
-}
-
-/* the guts of the interrupt handler, that is shared with das1800_ai_poll */
-static void das1800_ai_handler(struct comedi_device *dev)
-{
-	struct das1800_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int status = inb(dev->iobase + DAS1800_STATUS);
-
-	/*  select adc for base address + 0 */
-	outb(ADC, dev->iobase + DAS1800_SELECT);
-	/*  dma buffer full */
-	if (devpriv->irq_dma_bits & DMA_ENABLED) {
-		/*  look for data from dma transfer even if dma terminal count hasn't happened yet */
-		das1800_handle_dma(dev, s, status);
-	} else if (status & FHF) {	/*  if fifo half full */
-		das1800_handle_fifo_half_full(dev, s);
-	} else if (status & FNE) {	/*  if fifo not empty */
-		das1800_handle_fifo_not_empty(dev, s);
-	}
-
-	/* if the card's fifo has overflowed */
-	if (status & OVF) {
-		/*  clear OVF interrupt bit */
-		outb(CLEAR_INTR_MASK & ~OVF, dev->iobase + DAS1800_STATUS);
-		dev_err(dev->class_dev, "FIFO overflow\n");
-		async->events |= COMEDI_CB_ERROR;
-		comedi_handle_events(dev, s);
-		return;
-	}
-	/*  stop taking data if appropriate */
-	/* stop_src TRIG_EXT */
-	if (status & CT0TC) {
-		/*  clear CT0TC interrupt bit */
-		outb(CLEAR_INTR_MASK & ~CT0TC, dev->iobase + DAS1800_STATUS);
-		/*  make sure we get all remaining data from board before quitting */
-		if (devpriv->irq_dma_bits & DMA_ENABLED)
-			das1800_flush_dma(dev, s);
-		else
-			das1800_handle_fifo_not_empty(dev, s);
-		async->events |= COMEDI_CB_EOA;
-	} else if (cmd->stop_src == TRIG_COUNT &&
-		   async->scans_done >= cmd->stop_arg) {
-		async->events |= COMEDI_CB_EOA;
-	}
-
-	comedi_handle_events(dev, s);
-}
-
-static int das1800_ai_poll(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	unsigned long flags;
-
-	/*  prevent race with interrupt handler */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	das1800_ai_handler(dev);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return comedi_buf_n_bytes_ready(s);
-}
-
-static irqreturn_t das1800_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	unsigned int status;
-
-	if (!dev->attached) {
-		dev_err(dev->class_dev, "premature interrupt\n");
-		return IRQ_HANDLED;
-	}
-
-	/* Prevent race with das1800_ai_poll() on multi processor systems.
-	 * Also protects indirect addressing in das1800_ai_handler */
-	spin_lock(&dev->spinlock);
-	status = inb(dev->iobase + DAS1800_STATUS);
-
-	/* if interrupt was not caused by das-1800 */
-	if (!(status & INT)) {
-		spin_unlock(&dev->spinlock);
-		return IRQ_NONE;
-	}
-	/* clear the interrupt status bit INT */
-	outb(CLEAR_INTR_MASK & ~INT, dev->iobase + DAS1800_STATUS);
-	/*  handle interrupt */
-	das1800_ai_handler(dev);
-
-	spin_unlock(&dev->spinlock);
-	return IRQ_HANDLED;
-}
-
-/* converts requested conversion timing to timing compatible with
- * hardware, used only when card is in 'burst mode'
- */
-static unsigned int burst_convert_arg(unsigned int convert_arg, int flags)
-{
-	unsigned int micro_sec;
-
-	/*  in burst mode, the maximum conversion time is 64 microseconds */
-	if (convert_arg > 64000)
-		convert_arg = 64000;
-
-	/*  the conversion time must be an integral number of microseconds */
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		micro_sec = (convert_arg + 500) / 1000;
-		break;
-	case CMDF_ROUND_DOWN:
-		micro_sec = convert_arg / 1000;
-		break;
-	case CMDF_ROUND_UP:
-		micro_sec = (convert_arg - 1) / 1000 + 1;
-		break;
-	}
-
-	/*  return number of nanoseconds */
-	return micro_sec * 1000;
-}
-
-static int das1800_ai_check_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	unsigned int unipolar0 = CR_RANGE(cmd->chanlist[0]) & UNIPOLAR;
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int unipolar = CR_RANGE(cmd->chanlist[i]) & UNIPOLAR;
-
-		if (unipolar != unipolar0) {
-			dev_dbg(dev->class_dev,
-				"unipolar and bipolar ranges cannot be mixed in the chanlist\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-/* test analog input cmd */
-static int das1800_ai_do_cmdtest(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_cmd *cmd)
-{
-	const struct das1800_board *board = dev->board_ptr;
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src,
-					TRIG_COUNT | TRIG_EXT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->scan_begin_src != TRIG_FOLLOW &&
-	    cmd->convert_src != TRIG_TIMER)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_speed);
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	switch (cmd->stop_src) {
-	case TRIG_COUNT:
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-		break;
-	case TRIG_NONE:
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-		break;
-	default:
-		break;
-	}
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW &&
-	    cmd->convert_src == TRIG_TIMER) {
-		/* we are not in burst mode */
-		arg = cmd->convert_arg;
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	} else if (cmd->convert_src == TRIG_TIMER) {
-		/* we are in burst mode */
-		arg = burst_convert_arg(cmd->convert_arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			arg = cmd->convert_arg * cmd->chanlist_len;
-			err |= comedi_check_trigger_arg_max(&cmd->
-							    scan_begin_arg,
-							    arg);
-
-			arg = cmd->scan_begin_arg;
-			comedi_8254_cascade_ns_to_timer(dev->pacer, &arg,
-							cmd->flags);
-			err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg,
-							   arg);
-		}
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= das1800_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-/* returns appropriate bits for control register a, depending on command */
-static int control_a_bits(const struct comedi_cmd *cmd)
-{
-	int control_a;
-
-	control_a = FFEN;	/* enable fifo */
-	if (cmd->stop_src == TRIG_EXT)
-		control_a |= ATEN;
-	switch (cmd->start_src) {
-	case TRIG_EXT:
-		control_a |= TGEN | CGSL;
-		break;
-	case TRIG_NOW:
-		control_a |= CGEN;
-		break;
-	default:
-		break;
-	}
-
-	return control_a;
-}
-
-/* returns appropriate bits for control register c, depending on command */
-static int control_c_bits(const struct comedi_cmd *cmd)
-{
-	int control_c;
-	int aref;
-
-	/* set clock source to internal or external, select analog reference,
-	 * select unipolar / bipolar
-	 */
-	aref = CR_AREF(cmd->chanlist[0]);
-	control_c = UQEN;	/* enable upper qram addresses */
-	if (aref != AREF_DIFF)
-		control_c |= SD;
-	if (aref == AREF_COMMON)
-		control_c |= CMEN;
-	/* if a unipolar range was selected */
-	if (CR_RANGE(cmd->chanlist[0]) & UNIPOLAR)
-		control_c |= UB;
-	switch (cmd->scan_begin_src) {
-	case TRIG_FOLLOW:	/*  not in burst mode */
-		switch (cmd->convert_src) {
-		case TRIG_TIMER:
-			/* trig on cascaded counters */
-			control_c |= IPCLK;
-			break;
-		case TRIG_EXT:
-			/* trig on falling edge of external trigger */
-			control_c |= XPCLK;
-			break;
-		default:
-			break;
-		}
-		break;
-	case TRIG_TIMER:
-		/*  burst mode with internal pacer clock */
-		control_c |= BMDE | IPCLK;
-		break;
-	case TRIG_EXT:
-		/*  burst mode with external trigger */
-		control_c |= BMDE | XPCLK;
-		break;
-	default:
-		break;
-	}
-
-	return control_c;
-}
-
-static unsigned int das1800_ai_transfer_size(struct comedi_device *dev,
-					     struct comedi_subdevice *s,
-					     unsigned int maxbytes,
-					     unsigned int ns)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int max_samples = comedi_bytes_to_samples(s, maxbytes);
-	unsigned int samples;
-
-	samples = max_samples;
-
-	/* for timed modes, make dma buffer fill in 'ns' time */
-	switch (cmd->scan_begin_src) {
-	case TRIG_FOLLOW:	/* not in burst mode */
-		if (cmd->convert_src == TRIG_TIMER)
-			samples = ns / cmd->convert_arg;
-		break;
-	case TRIG_TIMER:
-		samples = ns / (cmd->scan_begin_arg * cmd->chanlist_len);
-		break;
-	}
-
-	/* limit samples to what is remaining in the command */
-	samples = comedi_nsamples_left(s, samples);
-
-	if (samples > max_samples)
-		samples = max_samples;
-	if (samples < 1)
-		samples = 1;
-
-	return comedi_samples_to_bytes(s, samples);
-}
-
-static void das1800_ai_setup_dma(struct comedi_device *dev,
-				 struct comedi_subdevice *s)
-{
-	struct das1800_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[0];
-	unsigned int bytes;
-
-	if ((devpriv->irq_dma_bits & DMA_ENABLED) == 0)
-		return;
-
-	dma->cur_dma = 0;
-
-	/* determine a dma transfer size to fill buffer in 0.3 sec */
-	bytes = das1800_ai_transfer_size(dev, s, desc->maxsize, 300000000);
-
-	desc->size = bytes;
-	comedi_isadma_program(desc);
-
-	/* set up dual dma if appropriate */
-	if (devpriv->irq_dma_bits & DMA_DUAL) {
-		desc = &dma->desc[1];
-		desc->size = bytes;
-		comedi_isadma_program(desc);
-	}
-}
-
-/* programs channel/gain list into card */
-static void program_chanlist(struct comedi_device *dev,
-			     const struct comedi_cmd *cmd)
-{
-	int i, n, chan_range;
-	unsigned long irq_flags;
-	const int range_mask = 0x3;	/* masks unipolar/bipolar bit off range */
-	const int range_bitshift = 8;
-
-	n = cmd->chanlist_len;
-	/*  spinlock protects indirect addressing */
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	outb(QRAM, dev->iobase + DAS1800_SELECT);	/* select QRAM for baseAddress + 0x0 */
-	outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS);	/*set QRAM address start */
-	/* make channel / gain list */
-	for (i = 0; i < n; i++) {
-		chan_range =
-		    CR_CHAN(cmd->chanlist[i]) |
-		    ((CR_RANGE(cmd->chanlist[i]) & range_mask) <<
-		     range_bitshift);
-		outw(chan_range, dev->iobase + DAS1800_QRAM);
-	}
-	outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS);	/*finish write to QRAM */
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-}
-
-/* analog input do_cmd */
-static int das1800_ai_do_cmd(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct das1800_private *devpriv = dev->private;
-	int control_a, control_c;
-	struct comedi_async *async = s->async;
-	const struct comedi_cmd *cmd = &async->cmd;
-
-	/* disable dma on CMDF_WAKE_EOS, or CMDF_PRIORITY
-	 * (because dma in handler is unsafe at hard real-time priority) */
-	if (cmd->flags & (CMDF_WAKE_EOS | CMDF_PRIORITY))
-		devpriv->irq_dma_bits &= ~DMA_ENABLED;
-	else
-		devpriv->irq_dma_bits |= devpriv->dma_bits;
-	/*  interrupt on end of conversion for CMDF_WAKE_EOS */
-	if (cmd->flags & CMDF_WAKE_EOS) {
-		/*  interrupt fifo not empty */
-		devpriv->irq_dma_bits &= ~FIMD;
-	} else {
-		/*  interrupt fifo half full */
-		devpriv->irq_dma_bits |= FIMD;
-	}
-
-	das1800_cancel(dev, s);
-
-	/*  determine proper bits for control registers */
-	control_a = control_a_bits(cmd);
-	control_c = control_c_bits(cmd);
-
-	/* setup card and start */
-	program_chanlist(dev, cmd);
-
-	/* setup cascaded counters for conversion/scan frequency */
-	if ((cmd->scan_begin_src == TRIG_FOLLOW ||
-	     cmd->scan_begin_src == TRIG_TIMER) &&
-	    cmd->convert_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-	}
-
-	/* setup counter 0 for 'about triggering' */
-	if (cmd->stop_src == TRIG_EXT)
-		comedi_8254_load(dev->pacer, 0, 1, I8254_MODE0 | I8254_BINARY);
-
-	das1800_ai_setup_dma(dev, s);
-	outb(control_c, dev->iobase + DAS1800_CONTROL_C);
-	/*  set conversion rate and length for burst mode */
-	if (control_c & BMDE) {
-		/*  program conversion period with number of microseconds minus 1 */
-		outb(cmd->convert_arg / 1000 - 1,
-		     dev->iobase + DAS1800_BURST_RATE);
-		outb(cmd->chanlist_len - 1, dev->iobase + DAS1800_BURST_LENGTH);
-	}
-	outb(devpriv->irq_dma_bits, dev->iobase + DAS1800_CONTROL_B);	/*  enable irq/dma */
-	outb(control_a, dev->iobase + DAS1800_CONTROL_A);	/* enable fifo and triggering */
-	outb(CVEN, dev->iobase + DAS1800_STATUS);	/* enable conversions */
-
-	return 0;
-}
-
-/* read analog input */
-static int das1800_ai_rinsn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	const struct das1800_board *board = dev->board_ptr;
-	int i, n;
-	int chan, range, aref, chan_range;
-	int timeout = 1000;
-	unsigned short dpnt;
-	int conv_flags = 0;
-	unsigned long irq_flags;
-
-	/* set up analog reference and unipolar / bipolar mode */
-	aref = CR_AREF(insn->chanspec);
-	conv_flags |= UQEN;
-	if (aref != AREF_DIFF)
-		conv_flags |= SD;
-	if (aref == AREF_COMMON)
-		conv_flags |= CMEN;
-	/* if a unipolar range was selected */
-	if (CR_RANGE(insn->chanspec) & UNIPOLAR)
-		conv_flags |= UB;
-
-	outb(conv_flags, dev->iobase + DAS1800_CONTROL_C);	/* software conversion enabled */
-	outb(CVEN, dev->iobase + DAS1800_STATUS);	/* enable conversions */
-	outb(0x0, dev->iobase + DAS1800_CONTROL_A);	/* reset fifo */
-	outb(FFEN, dev->iobase + DAS1800_CONTROL_A);
-
-	chan = CR_CHAN(insn->chanspec);
-	/* mask of unipolar/bipolar bit from range */
-	range = CR_RANGE(insn->chanspec) & 0x3;
-	chan_range = chan | (range << 8);
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	outb(QRAM, dev->iobase + DAS1800_SELECT);	/* select QRAM for baseAddress + 0x0 */
-	outb(0x0, dev->iobase + DAS1800_QRAM_ADDRESS);	/* set QRAM address start */
-	outw(chan_range, dev->iobase + DAS1800_QRAM);
-	outb(0x0, dev->iobase + DAS1800_QRAM_ADDRESS);	/*finish write to QRAM */
-	outb(ADC, dev->iobase + DAS1800_SELECT);	/* select ADC for baseAddress + 0x0 */
-
-	for (n = 0; n < insn->n; n++) {
-		/* trigger conversion */
-		outb(0, dev->iobase + DAS1800_FIFO);
-		for (i = 0; i < timeout; i++) {
-			if (inb(dev->iobase + DAS1800_STATUS) & FNE)
-				break;
-		}
-		if (i == timeout) {
-			dev_err(dev->class_dev, "timeout\n");
-			n = -ETIME;
-			goto exit;
-		}
-		dpnt = inw(dev->iobase + DAS1800_FIFO);
-		/* shift data to offset binary for bipolar ranges */
-		if ((conv_flags & UB) == 0)
-			dpnt += 1 << (board->resolution - 1);
-		data[n] = dpnt;
-	}
-exit:
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	return n;
-}
-
-/* writes to an analog output channel */
-static int das1800_ao_winsn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	const struct das1800_board *board = dev->board_ptr;
-	struct das1800_private *devpriv = dev->private;
-	int chan = CR_CHAN(insn->chanspec);
-/* int range = CR_RANGE(insn->chanspec); */
-	int update_chan = board->ao_n_chan - 1;
-	unsigned short output;
-	unsigned long irq_flags;
-
-	/*   card expects two's complement data */
-	output = data[0] - (1 << (board->resolution - 1));
-	/*  if the write is to the 'update' channel, we need to remember its value */
-	if (chan == update_chan)
-		devpriv->ao_update_bits = output;
-	/*  write to channel */
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	outb(DAC(chan), dev->iobase + DAS1800_SELECT);	/* select dac channel for baseAddress + 0x0 */
-	outw(output, dev->iobase + DAS1800_DAC);
-	/*  now we need to write to 'update' channel to update all dac channels */
-	if (chan != update_chan) {
-		outb(DAC(update_chan), dev->iobase + DAS1800_SELECT);	/* select 'update' channel for baseAddress + 0x0 */
-		outw(devpriv->ao_update_bits, dev->iobase + DAS1800_DAC);
-	}
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	return 1;
-}
-
-/* reads from digital input channels */
-static int das1800_di_rbits(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
-{
-	data[1] = inb(dev->iobase + DAS1800_DIGITAL) & 0xf;
-	data[0] = 0;
-
-	return insn->n;
-}
-
-static int das1800_do_wbits(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + DAS1800_DIGITAL);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void das1800_init_dma(struct comedi_device *dev,
-			     struct comedi_devconfig *it)
-{
-	struct das1800_private *devpriv = dev->private;
-	unsigned int *dma_chan;
-
-	/*
-	 * it->options[2] is DMA channel 0
-	 * it->options[3] is DMA channel 1
-	 *
-	 * Encode the DMA channels into 2 digit hexadecimal for switch.
-	 */
-	dma_chan = &it->options[2];
-
-	switch ((dma_chan[0] & 0x7) | (dma_chan[1] << 4)) {
-	case 0x5:	/*  dma0 == 5 */
-		devpriv->dma_bits = DMA_CH5;
-		break;
-	case 0x6:	/*  dma0 == 6 */
-		devpriv->dma_bits = DMA_CH6;
-		break;
-	case 0x7:	/*  dma0 == 7 */
-		devpriv->dma_bits = DMA_CH7;
-		break;
-	case 0x65:	/*  dma0 == 5, dma1 == 6 */
-		devpriv->dma_bits = DMA_CH5_CH6;
-		break;
-	case 0x76:	/*  dma0 == 6, dma1 == 7 */
-		devpriv->dma_bits = DMA_CH6_CH7;
-		break;
-	case 0x57:	/*  dma0 == 7, dma1 == 5 */
-		devpriv->dma_bits = DMA_CH7_CH5;
-		break;
-	default:
-		return;
-	}
-
-	/* DMA can use 1 or 2 buffers, each with a separate channel */
-	devpriv->dma = comedi_isadma_alloc(dev, dma_chan[1] ? 2 : 1,
-					   dma_chan[0], dma_chan[1],
-					   DMA_BUF_SIZE, COMEDI_ISADMA_READ);
-	if (!devpriv->dma)
-		devpriv->dma_bits = 0;
-}
-
-static void das1800_free_dma(struct comedi_device *dev)
-{
-	struct das1800_private *devpriv = dev->private;
-
-	if (devpriv)
-		comedi_isadma_free(devpriv->dma);
-}
-
-static const struct das1800_board *das1800_probe(struct comedi_device *dev)
-{
-	const struct das1800_board *board = dev->board_ptr;
-	int index = board ? board - das1800_boards : -EINVAL;
-	int id;
-
-	/*
-	 * The dev->board_ptr will be set by comedi_device_attach() if the
-	 * board name provided by the user matches a board->name in this
-	 * driver. If so, this function sanity checks the id to verify that
-	 * the board is correct.
-	 *
-	 * If the dev->board_ptr is not set, the user is trying to attach
-	 * an unspecified board to this driver. In this case the id is used
-	 * to 'probe' for the correct dev->board_ptr.
-	 */
-	id = (inb(dev->iobase + DAS1800_DIGITAL) >> 4) & 0xf;
-	switch (id) {
-	case 0x3:
-		if (index == das1801st_da || index == das1802st_da ||
-		    index == das1701st_da || index == das1702st_da)
-			return board;
-		index = das1801st;
-		break;
-	case 0x4:
-		if (index == das1802hr_da || index == das1702hr_da)
-			return board;
-		index = das1802hr;
-		break;
-	case 0x5:
-		if (index == das1801ao || index == das1802ao ||
-		    index == das1701ao || index == das1702ao)
-			return board;
-		index = das1801ao;
-		break;
-	case 0x6:
-		if (index == das1802hr || index == das1702hr)
-			return board;
-		index = das1802hr;
-		break;
-	case 0x7:
-		if (index == das1801st || index == das1802st ||
-		    index == das1701st || index == das1702st)
-			return board;
-		index = das1801st;
-		break;
-	case 0x8:
-		if (index == das1801hc || index == das1802hc)
-			return board;
-		index = das1801hc;
-		break;
-	default:
-		dev_err(dev->class_dev,
-			"Board model: probe returned 0x%x (unknown, please report)\n",
-			id);
-		return NULL;
-	}
-	dev_err(dev->class_dev,
-		"Board model (probed, not recommended): %s series\n",
-		das1800_boards[index].name);
-
-	return &das1800_boards[index];
-}
-
-static int das1800_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	const struct das1800_board *board;
-	struct das1800_private *devpriv;
-	struct comedi_subdevice *s;
-	unsigned int irq = it->options[1];
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], DAS1800_SIZE);
-	if (ret)
-		return ret;
-
-	board = das1800_probe(dev);
-	if (!board) {
-		dev_err(dev->class_dev, "unable to determine board type\n");
-		return -ENODEV;
-	}
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	/*  if it is an 'ao' board with fancy analog out then we need extra io ports */
-	if (board->ao_ability == 2) {
-		unsigned long iobase2 = dev->iobase + IOBASE2;
-
-		ret = __comedi_request_region(dev, iobase2, DAS1800_SIZE);
-		if (ret)
-			return ret;
-		devpriv->iobase2 = iobase2;
-	}
-
-	if (irq == 3 || irq == 5 || irq == 7 || irq == 10 || irq == 11 ||
-	    irq == 15) {
-		ret = request_irq(irq, das1800_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0) {
-			dev->irq = irq;
-
-			switch (irq) {
-			case 3:
-				devpriv->irq_dma_bits |= 0x8;
-				break;
-			case 5:
-				devpriv->irq_dma_bits |= 0x10;
-				break;
-			case 7:
-				devpriv->irq_dma_bits |= 0x18;
-				break;
-			case 10:
-				devpriv->irq_dma_bits |= 0x28;
-				break;
-			case 11:
-				devpriv->irq_dma_bits |= 0x30;
-				break;
-			case 15:
-				devpriv->irq_dma_bits |= 0x38;
-				break;
-			}
-		}
-	}
-
-	/* an irq and one dma channel is required to use dma */
-	if (dev->irq & it->options[2])
-		das1800_init_dma(dev, it);
-
-	devpriv->fifo_buf = kmalloc_array(FIFO_SIZE, sizeof(uint16_t), GFP_KERNEL);
-	if (!devpriv->fifo_buf)
-		return -ENOMEM;
-
-	dev->pacer = comedi_8254_init(dev->iobase + DAS1800_COUNTER,
-				      I8254_OSC_BASE_5MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* analog input subdevice */
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND;
-	if (board->common)
-		s->subdev_flags |= SDF_COMMON;
-	s->n_chan = board->qram_len;
-	s->maxdata = (1 << board->resolution) - 1;
-	s->range_table = board->range_ai;
-	s->insn_read = das1800_ai_rinsn;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->len_chanlist = s->n_chan;
-		s->do_cmd = das1800_ai_do_cmd;
-		s->do_cmdtest = das1800_ai_do_cmdtest;
-		s->poll = das1800_ai_poll;
-		s->cancel = das1800_cancel;
-	}
-
-	/* analog out */
-	s = &dev->subdevices[1];
-	if (board->ao_ability == 1) {
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_WRITABLE;
-		s->n_chan = board->ao_n_chan;
-		s->maxdata = (1 << board->resolution) - 1;
-		s->range_table = &range_bipolar10;
-		s->insn_write = das1800_ao_winsn;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/* di */
-	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 4;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = das1800_di_rbits;
-
-	/* do */
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = board->do_n_chan;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = das1800_do_wbits;
-
-	das1800_cancel(dev, dev->read_subdev);
-
-	/*  initialize digital out channels */
-	outb(0, dev->iobase + DAS1800_DIGITAL);
-
-	/*  initialize analog out channels */
-	if (board->ao_ability == 1) {
-		/*  select 'update' dac channel for baseAddress + 0x0 */
-		outb(DAC(board->ao_n_chan - 1),
-		     dev->iobase + DAS1800_SELECT);
-		outw(devpriv->ao_update_bits, dev->iobase + DAS1800_DAC);
-	}
-
-	return 0;
-};
-
-static void das1800_detach(struct comedi_device *dev)
-{
-	struct das1800_private *devpriv = dev->private;
-
-	das1800_free_dma(dev);
-	if (devpriv) {
-		kfree(devpriv->fifo_buf);
-		if (devpriv->iobase2)
-			release_region(devpriv->iobase2, DAS1800_SIZE);
-	}
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver das1800_driver = {
-	.driver_name	= "das1800",
-	.module		= THIS_MODULE,
-	.attach		= das1800_attach,
-	.detach		= das1800_detach,
-	.num_names	= ARRAY_SIZE(das1800_boards),
-	.board_name	= &das1800_boards[0].name,
-	.offset		= sizeof(struct das1800_board),
-};
-module_comedi_driver(das1800_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
deleted file mode 100644
index 1701294b79cd..000000000000
--- a/drivers/staging/comedi/drivers/das6402.c
+++ /dev/null
@@ -1,676 +0,0 @@
-/*
- * das6402.c
- * Comedi driver for DAS6402 compatible boards
- * Copyright(c) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * Rewrite of an experimental driver by:
- * Copyright (C) 1999 Oystein Svendsen <svendsen@pvv.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: das6402
- * Description: Keithley Metrabyte DAS6402 (& compatibles)
- * Devices: [Keithley Metrabyte] DAS6402-12 (das6402-12),
- *   DAS6402-16 (das6402-16)
- * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
- * Updated: Fri, 14 Mar 2014 10:18:43 -0700
- * Status: unknown
- *
- * Configuration Options:
- *   [0] - I/O base address
- *   [1] - IRQ (optional, needed for async command support)
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#include "comedi_8254.h"
-
-/*
- * Register I/O map
- */
-#define DAS6402_AI_DATA_REG		0x00
-#define DAS6402_AI_MUX_REG		0x02
-#define DAS6402_AI_MUX_LO(x)		(((x) & 0x3f) << 0)
-#define DAS6402_AI_MUX_HI(x)		(((x) & 0x3f) << 8)
-#define DAS6402_DI_DO_REG		0x03
-#define DAS6402_AO_DATA_REG(x)		(0x04 + ((x) * 2))
-#define DAS6402_AO_LSB_REG(x)		(0x04 + ((x) * 2))
-#define DAS6402_AO_MSB_REG(x)		(0x05 + ((x) * 2))
-#define DAS6402_STATUS_REG		0x08
-#define DAS6402_STATUS_FFNE		(1 << 0)
-#define DAS6402_STATUS_FHALF		(1 << 1)
-#define DAS6402_STATUS_FFULL		(1 << 2)
-#define DAS6402_STATUS_XINT		(1 << 3)
-#define DAS6402_STATUS_INT		(1 << 4)
-#define DAS6402_STATUS_XTRIG		(1 << 5)
-#define DAS6402_STATUS_INDGT		(1 << 6)
-#define DAS6402_STATUS_10MHZ		(1 << 7)
-#define DAS6402_STATUS_W_CLRINT		(1 << 0)
-#define DAS6402_STATUS_W_CLRXTR		(1 << 1)
-#define DAS6402_STATUS_W_CLRXIN		(1 << 2)
-#define DAS6402_STATUS_W_EXTEND		(1 << 4)
-#define DAS6402_STATUS_W_ARMED		(1 << 5)
-#define DAS6402_STATUS_W_POSTMODE	(1 << 6)
-#define DAS6402_STATUS_W_10MHZ		(1 << 7)
-#define DAS6402_CTRL_REG		0x09
-#define DAS6402_CTRL_SOFT_TRIG		(0 << 0)
-#define DAS6402_CTRL_EXT_FALL_TRIG	(1 << 0)
-#define DAS6402_CTRL_EXT_RISE_TRIG	(2 << 0)
-#define DAS6402_CTRL_PACER_TRIG		(3 << 0)
-#define DAS6402_CTRL_BURSTEN		(1 << 2)
-#define DAS6402_CTRL_XINTE		(1 << 3)
-#define DAS6402_CTRL_IRQ(x)		((x) << 4)
-#define DAS6402_CTRL_INTE		(1 << 7)
-#define DAS6402_TRIG_REG		0x0a
-#define DAS6402_TRIG_TGEN		(1 << 0)
-#define DAS6402_TRIG_TGSEL		(1 << 1)
-#define DAS6402_TRIG_TGPOL		(1 << 2)
-#define DAS6402_TRIG_PRETRIG		(1 << 3)
-#define DAS6402_AO_RANGE(_chan, _range)	((_range) << ((_chan) ? 6 : 4))
-#define DAS6402_AO_RANGE_MASK(_chan)	(3 << ((_chan) ? 6 : 4))
-#define DAS6402_MODE_REG		0x0b
-#define DAS6402_MODE_RANGE(x)		((x) << 0)
-#define DAS6402_MODE_POLLED		(0 << 2)
-#define DAS6402_MODE_FIFONEPTY		(1 << 2)
-#define DAS6402_MODE_FIFOHFULL		(2 << 2)
-#define DAS6402_MODE_EOB		(3 << 2)
-#define DAS6402_MODE_ENHANCED		(1 << 4)
-#define DAS6402_MODE_SE			(1 << 5)
-#define DAS6402_MODE_UNI		(1 << 6)
-#define DAS6402_MODE_DMA1		(0 << 7)
-#define DAS6402_MODE_DMA3		(1 << 7)
-#define DAS6402_TIMER_BASE		0x0c
-
-static const struct comedi_lrange das6402_ai_ranges = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-/*
- * Analog output ranges are programmable on the DAS6402/12.
- * For the DAS6402/16 the range bits have no function, the
- * DAC ranges are selected by switches on the board.
- */
-static const struct comedi_lrange das6402_ao_ranges = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-struct das6402_boardinfo {
-	const char *name;
-	unsigned int maxdata;
-};
-
-static struct das6402_boardinfo das6402_boards[] = {
-	{
-		.name		= "das6402-12",
-		.maxdata	= 0x0fff,
-	}, {
-		.name		= "das6402-16",
-		.maxdata	= 0xffff,
-	},
-};
-
-struct das6402_private {
-	unsigned int irq;
-	unsigned int ao_range;
-};
-
-static void das6402_set_mode(struct comedi_device *dev,
-			     unsigned int mode)
-{
-	outb(DAS6402_MODE_ENHANCED | mode, dev->iobase + DAS6402_MODE_REG);
-}
-
-static void das6402_set_extended(struct comedi_device *dev,
-				 unsigned int val)
-{
-	outb(DAS6402_STATUS_W_EXTEND, dev->iobase + DAS6402_STATUS_REG);
-	outb(DAS6402_STATUS_W_EXTEND | val, dev->iobase + DAS6402_STATUS_REG);
-	outb(val, dev->iobase + DAS6402_STATUS_REG);
-}
-
-static void das6402_clear_all_interrupts(struct comedi_device *dev)
-{
-	outb(DAS6402_STATUS_W_CLRINT |
-	     DAS6402_STATUS_W_CLRXTR |
-	     DAS6402_STATUS_W_CLRXIN, dev->iobase + DAS6402_STATUS_REG);
-}
-
-static void das6402_ai_clear_eoc(struct comedi_device *dev)
-{
-	outb(DAS6402_STATUS_W_CLRINT, dev->iobase + DAS6402_STATUS_REG);
-}
-
-static unsigned int das6402_ai_read_sample(struct comedi_device *dev,
-					   struct comedi_subdevice *s)
-{
-	unsigned int val;
-
-	val = inw(dev->iobase + DAS6402_AI_DATA_REG);
-	if (s->maxdata == 0x0fff)
-		val >>= 4;
-	return val;
-}
-
-static irqreturn_t das6402_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int status;
-
-	status = inb(dev->iobase + DAS6402_STATUS_REG);
-	if ((status & DAS6402_STATUS_INT) == 0)
-		return IRQ_NONE;
-
-	if (status & DAS6402_STATUS_FFULL) {
-		async->events |= COMEDI_CB_OVERFLOW;
-	} else if (status & DAS6402_STATUS_FFNE) {
-		unsigned int val;
-
-		val = das6402_ai_read_sample(dev, s);
-		comedi_buf_write_samples(s, &val, 1);
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg)
-			async->events |= COMEDI_CB_EOA;
-	}
-
-	das6402_clear_all_interrupts(dev);
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static void das6402_ai_set_mode(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned int chanspec,
-				unsigned int mode)
-{
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int aref = CR_AREF(chanspec);
-
-	mode |= DAS6402_MODE_RANGE(range);
-	if (aref == AREF_GROUND)
-		mode |= DAS6402_MODE_SE;
-	if (comedi_range_is_unipolar(s, range))
-		mode |= DAS6402_MODE_UNI;
-
-	das6402_set_mode(dev, mode);
-}
-
-static int das6402_ai_cmd(struct comedi_device *dev,
-			  struct comedi_subdevice *s)
-{
-	struct das6402_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int chan_lo = CR_CHAN(cmd->chanlist[0]);
-	unsigned int chan_hi = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]);
-
-	das6402_ai_set_mode(dev, s, cmd->chanlist[0], DAS6402_MODE_FIFONEPTY);
-
-	/* load the mux for chanlist conversion */
-	outw(DAS6402_AI_MUX_HI(chan_hi) | DAS6402_AI_MUX_LO(chan_lo),
-	     dev->iobase + DAS6402_AI_MUX_REG);
-
-	comedi_8254_update_divisors(dev->pacer);
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-
-	/* enable interrupt and pacer trigger */
-	outb(DAS6402_CTRL_INTE |
-	     DAS6402_CTRL_IRQ(devpriv->irq) |
-	     DAS6402_CTRL_PACER_TRIG, dev->iobase + DAS6402_CTRL_REG);
-
-	return 0;
-}
-
-static int das6402_ai_check_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-
-		if (chan != chan0 + i) {
-			dev_dbg(dev->class_dev,
-				"chanlist must be consecutive\n");
-			return -EINVAL;
-		}
-
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"chanlist must have the same range\n");
-			return -EINVAL;
-		}
-
-		if (aref != aref0) {
-			dev_dbg(dev->class_dev,
-				"chanlist must have the same reference\n");
-			return -EINVAL;
-		}
-
-		if (aref0 == AREF_DIFF && chan > (s->n_chan / 2)) {
-			dev_dbg(dev->class_dev,
-				"chanlist differential channel to large\n");
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-
-static int das6402_ai_cmdtest(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	arg = cmd->convert_arg;
-	comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= das6402_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int das6402_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	outb(DAS6402_CTRL_SOFT_TRIG, dev->iobase + DAS6402_CTRL_REG);
-
-	return 0;
-}
-
-static void das6402_ai_soft_trig(struct comedi_device *dev)
-{
-	outw(0, dev->iobase + DAS6402_AI_DATA_REG);
-}
-
-static int das6402_ai_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DAS6402_STATUS_REG);
-	if (status & DAS6402_STATUS_FFNE)
-		return 0;
-	return -EBUSY;
-}
-
-static int das6402_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int aref = CR_AREF(insn->chanspec);
-	int ret;
-	int i;
-
-	if (aref == AREF_DIFF && chan > (s->n_chan / 2))
-		return -EINVAL;
-
-	/* enable software conversion trigger */
-	outb(DAS6402_CTRL_SOFT_TRIG, dev->iobase + DAS6402_CTRL_REG);
-
-	das6402_ai_set_mode(dev, s, insn->chanspec, DAS6402_MODE_POLLED);
-
-	/* load the mux for single channel conversion */
-	outw(DAS6402_AI_MUX_HI(chan) | DAS6402_AI_MUX_LO(chan),
-	     dev->iobase + DAS6402_AI_MUX_REG);
-
-	for (i = 0; i < insn->n; i++) {
-		das6402_ai_clear_eoc(dev);
-		das6402_ai_soft_trig(dev);
-
-		ret = comedi_timeout(dev, s, insn, das6402_ai_eoc, 0);
-		if (ret)
-			break;
-
-		data[i] = das6402_ai_read_sample(dev, s);
-	}
-
-	das6402_ai_clear_eoc(dev);
-
-	return insn->n;
-}
-
-static int das6402_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct das6402_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	/* set the range for this channel */
-	val = devpriv->ao_range;
-	val &= ~DAS6402_AO_RANGE_MASK(chan);
-	val |= DAS6402_AO_RANGE(chan, range);
-	if (val != devpriv->ao_range) {
-		devpriv->ao_range = val;
-		outb(val, dev->iobase + DAS6402_TRIG_REG);
-	}
-
-	/*
-	 * The DAS6402/16 has a jumper to select either individual
-	 * update (UPDATE) or simultaneous updating (XFER) of both
-	 * DAC's. In UPDATE mode, when the MSB is written, that DAC
-	 * is updated. In XFER mode, after both DAC's are loaded,
-	 * a read cycle of any DAC register will update both DAC's
-	 * simultaneously.
-	 *
-	 * If you have XFER mode enabled a (*insn_read) will need
-	 * to be performed in order to update the DAC's with the
-	 * last value written.
-	 */
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		s->readback[chan] = val;
-
-		if (s->maxdata == 0x0fff) {
-			/*
-			 * DAS6402/12 has the two 8-bit DAC registers, left
-			 * justified (the 4 LSB bits are don't care). Data
-			 * can be written as one word.
-			 */
-			val <<= 4;
-			outw(val, dev->iobase + DAS6402_AO_DATA_REG(chan));
-		} else {
-			/*
-			 * DAS6402/16 uses both 8-bit DAC registers and needs
-			 * to be written LSB then MSB.
-			 */
-			outb(val & 0xff,
-			     dev->iobase + DAS6402_AO_LSB_REG(chan));
-			outb((val >> 8) & 0xff,
-			     dev->iobase + DAS6402_AO_LSB_REG(chan));
-		}
-	}
-
-	return insn->n;
-}
-
-static int das6402_ao_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/*
-	 * If XFER mode is enabled, reading any DAC register
-	 * will update both DAC's simultaneously.
-	 */
-	inw(dev->iobase + DAS6402_AO_LSB_REG(chan));
-
-	return comedi_readback_insn_read(dev, s, insn, data);
-}
-
-static int das6402_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	data[1] = inb(dev->iobase + DAS6402_DI_DO_REG);
-
-	return insn->n;
-}
-
-static int das6402_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + DAS6402_DI_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void das6402_reset(struct comedi_device *dev)
-{
-	struct das6402_private *devpriv = dev->private;
-
-	/* enable "Enhanced" mode */
-	outb(DAS6402_MODE_ENHANCED, dev->iobase + DAS6402_MODE_REG);
-
-	/* enable 10MHz pacer clock */
-	das6402_set_extended(dev, DAS6402_STATUS_W_10MHZ);
-
-	/* enable software conversion trigger */
-	outb(DAS6402_CTRL_SOFT_TRIG, dev->iobase + DAS6402_CTRL_REG);
-
-	/* default ADC to single-ended unipolar 10V inputs */
-	das6402_set_mode(dev, DAS6402_MODE_RANGE(0) |
-			      DAS6402_MODE_POLLED |
-			      DAS6402_MODE_SE |
-			      DAS6402_MODE_UNI);
-
-	/* default mux for single channel conversion (channel 0) */
-	outw(DAS6402_AI_MUX_HI(0) | DAS6402_AI_MUX_LO(0),
-	     dev->iobase + DAS6402_AI_MUX_REG);
-
-	/* set both DAC's for unipolar 5V output range */
-	devpriv->ao_range = DAS6402_AO_RANGE(0, 2) | DAS6402_AO_RANGE(1, 2);
-	outb(devpriv->ao_range, dev->iobase + DAS6402_TRIG_REG);
-
-	/* set both DAC's to 0V */
-	outw(0, dev->iobase + DAS6402_AO_DATA_REG(0));
-	outw(0, dev->iobase + DAS6402_AO_DATA_REG(0));
-	inw(dev->iobase + DAS6402_AO_LSB_REG(0));
-
-	/* set all digital outputs low */
-	outb(0, dev->iobase + DAS6402_DI_DO_REG);
-
-	das6402_clear_all_interrupts(dev);
-}
-
-static int das6402_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	const struct das6402_boardinfo *board = dev->board_ptr;
-	struct das6402_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	das6402_reset(dev);
-
-	/* IRQs 2,3,5,6,7, 10,11,15 are valid for "enhanced" mode */
-	if ((1 << it->options[1]) & 0x8cec) {
-		ret = request_irq(it->options[1], das6402_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0) {
-			dev->irq = it->options[1];
-
-			switch (dev->irq) {
-			case 10:
-				devpriv->irq = 4;
-				break;
-			case 11:
-				devpriv->irq = 1;
-				break;
-			case 15:
-				devpriv->irq = 6;
-				break;
-			default:
-				devpriv->irq = dev->irq;
-				break;
-			}
-		}
-	}
-
-	dev->pacer = comedi_8254_init(dev->iobase + DAS6402_TIMER_BASE,
-				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan	= 64;
-	s->maxdata	= board->maxdata;
-	s->range_table	= &das6402_ai_ranges;
-	s->insn_read	= das6402_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= s->n_chan;
-		s->do_cmdtest	= das6402_ai_cmdtest;
-		s->do_cmd	= das6402_ai_cmd;
-		s->cancel	= das6402_ai_cancel;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= board->maxdata;
-	s->range_table	= &das6402_ao_ranges;
-	s->insn_write	= das6402_ao_insn_write;
-	s->insn_read	= das6402_ao_insn_read;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= das6402_di_insn_bits;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= das6402_do_insn_bits;
-
-	return 0;
-}
-
-static struct comedi_driver das6402_driver = {
-	.driver_name	= "das6402",
-	.module		= THIS_MODULE,
-	.attach		= das6402_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &das6402_boards[0].name,
-	.num_names	= ARRAY_SIZE(das6402_boards),
-	.offset		= sizeof(struct das6402_boardinfo),
-};
-module_comedi_driver(das6402_driver)
-
-MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_DESCRIPTION("Comedi driver for DAS6402 compatible boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
deleted file mode 100644
index b02f12201cf7..000000000000
--- a/drivers/staging/comedi/drivers/das800.c
+++ /dev/null
@@ -1,753 +0,0 @@
-/*
-    comedi/drivers/das800.c
-    Driver for Keitley das800 series boards and compatibles
-    Copyright (C) 2000 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: das800
-Description: Keithley Metrabyte DAS800 (& compatibles)
-Author: Frank Mori Hess <fmhess@users.sourceforge.net>
-Devices: [Keithley Metrabyte] DAS-800 (das-800), DAS-801 (das-801),
-  DAS-802 (das-802),
-  [Measurement Computing] CIO-DAS800 (cio-das800),
-  CIO-DAS801 (cio-das801), CIO-DAS802 (cio-das802),
-  CIO-DAS802/16 (cio-das802/16)
-Status: works, cio-das802/16 untested - email me if you have tested it
-
-Configuration options:
-  [0] - I/O port base address
-  [1] - IRQ (optional, required for timed or externally triggered conversions)
-
-Notes:
-	IRQ can be omitted, although the cmd interface will not work without it.
-
-	All entries in the channel/gain list must use the same gain and be
-	consecutive channels counting upwards in channel number (these are
-	hardware limitations.)
-
-	I've never tested the gain setting stuff since I only have a
-	DAS-800 board with fixed gain.
-
-	The cio-das802/16 does not have a fifo-empty status bit!  Therefore
-	only fifo-half-full transfers are possible with this card.
-
-cmd triggers supported:
-	start_src:      TRIG_NOW | TRIG_EXT
-	scan_begin_src: TRIG_FOLLOW
-	scan_end_src:   TRIG_COUNT
-	convert_src:    TRIG_TIMER | TRIG_EXT
-	stop_src:       TRIG_NONE | TRIG_COUNT
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-
-#include "../comedidev.h"
-
-#include "comedi_8254.h"
-
-#define N_CHAN_AI             8	/*  number of analog input channels */
-
-/* Registers for the das800 */
-
-#define DAS800_LSB            0
-#define   FIFO_EMPTY            0x1
-#define   FIFO_OVF              0x2
-#define DAS800_MSB            1
-#define DAS800_CONTROL1       2
-#define   CONTROL1_INTE         0x8
-#define DAS800_CONV_CONTROL   2
-#define   ITE                   0x1
-#define   CASC                  0x2
-#define   DTEN                  0x4
-#define   IEOC                  0x8
-#define   EACS                  0x10
-#define   CONV_HCEN             0x80
-#define DAS800_SCAN_LIMITS    2
-#define DAS800_STATUS         2
-#define   IRQ                   0x8
-#define   BUSY                  0x80
-#define DAS800_GAIN           3
-#define   CIO_FFOV              0x8   /* cio-das802/16 fifo overflow */
-#define   CIO_ENHF              0x90  /* cio-das802/16 fifo half full int ena */
-#define   CONTROL1              0x80
-#define   CONV_CONTROL          0xa0
-#define   SCAN_LIMITS           0xc0
-#define   ID                    0xe0
-#define DAS800_8254           4
-#define DAS800_STATUS2        7
-#define   STATUS2_HCEN          0x80
-#define   STATUS2_INTE          0X20
-#define DAS800_ID             7
-
-#define DAS802_16_HALF_FIFO_SZ	128
-
-struct das800_board {
-	const char *name;
-	int ai_speed;
-	const struct comedi_lrange *ai_range;
-	int resolution;
-};
-
-static const struct comedi_lrange range_das801_ai = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(10),
-		BIP_RANGE(0.5),
-		UNI_RANGE(1),
-		BIP_RANGE(0.05),
-		UNI_RANGE(0.1),
-		BIP_RANGE(0.01),
-		UNI_RANGE(0.02)
-	}
-};
-
-static const struct comedi_lrange range_cio_das801_ai = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(10),
-		BIP_RANGE(0.5),
-		UNI_RANGE(1),
-		BIP_RANGE(0.05),
-		UNI_RANGE(0.1),
-		BIP_RANGE(0.005),
-		UNI_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_das802_ai = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(10),
-		BIP_RANGE(2.5),
-		UNI_RANGE(5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(2.5),
-		BIP_RANGE(0.625),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_das80216_ai = {
-	8, {
-		BIP_RANGE(10),
-		UNI_RANGE(10),
-		BIP_RANGE(5),
-		UNI_RANGE(5),
-		BIP_RANGE(2.5),
-		UNI_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(1.25)
-	}
-};
-
-enum das800_boardinfo {
-	BOARD_DAS800,
-	BOARD_CIODAS800,
-	BOARD_DAS801,
-	BOARD_CIODAS801,
-	BOARD_DAS802,
-	BOARD_CIODAS802,
-	BOARD_CIODAS80216,
-};
-
-static const struct das800_board das800_boards[] = {
-	[BOARD_DAS800] = {
-		.name		= "das-800",
-		.ai_speed	= 25000,
-		.ai_range	= &range_bipolar5,
-		.resolution	= 12,
-	},
-	[BOARD_CIODAS800] = {
-		.name		= "cio-das800",
-		.ai_speed	= 20000,
-		.ai_range	= &range_bipolar5,
-		.resolution	= 12,
-	},
-	[BOARD_DAS801] = {
-		.name		= "das-801",
-		.ai_speed	= 25000,
-		.ai_range	= &range_das801_ai,
-		.resolution	= 12,
-	},
-	[BOARD_CIODAS801] = {
-		.name		= "cio-das801",
-		.ai_speed	= 20000,
-		.ai_range	= &range_cio_das801_ai,
-		.resolution	= 12,
-	},
-	[BOARD_DAS802] = {
-		.name		= "das-802",
-		.ai_speed	= 25000,
-		.ai_range	= &range_das802_ai,
-		.resolution	= 12,
-	},
-	[BOARD_CIODAS802] = {
-		.name		= "cio-das802",
-		.ai_speed	= 20000,
-		.ai_range	= &range_das802_ai,
-		.resolution	= 12,
-	},
-	[BOARD_CIODAS80216] = {
-		.name		= "cio-das802/16",
-		.ai_speed	= 10000,
-		.ai_range	= &range_das80216_ai,
-		.resolution	= 16,
-	},
-};
-
-struct das800_private {
-	unsigned int do_bits;	/* digital output bits */
-};
-
-static void das800_ind_write(struct comedi_device *dev,
-			     unsigned val, unsigned reg)
-{
-	/*
-	 * Select dev->iobase + 2 to be desired register
-	 * then write to that register.
-	 */
-	outb(reg, dev->iobase + DAS800_GAIN);
-	outb(val, dev->iobase + 2);
-}
-
-static unsigned das800_ind_read(struct comedi_device *dev, unsigned reg)
-{
-	/*
-	 * Select dev->iobase + 7 to be desired register
-	 * then read from that register.
-	 */
-	outb(reg, dev->iobase + DAS800_GAIN);
-	return inb(dev->iobase + 7);
-}
-
-static void das800_enable(struct comedi_device *dev)
-{
-	const struct das800_board *board = dev->board_ptr;
-	struct das800_private *devpriv = dev->private;
-	unsigned long irq_flags;
-
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	/*  enable fifo-half full interrupts for cio-das802/16 */
-	if (board->resolution == 16)
-		outb(CIO_ENHF, dev->iobase + DAS800_GAIN);
-	/* enable hardware triggering */
-	das800_ind_write(dev, CONV_HCEN, CONV_CONTROL);
-	/* enable card's interrupt */
-	das800_ind_write(dev, CONTROL1_INTE | devpriv->do_bits, CONTROL1);
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-}
-
-static void das800_disable(struct comedi_device *dev)
-{
-	unsigned long irq_flags;
-
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	/* disable hardware triggering of conversions */
-	das800_ind_write(dev, 0x0, CONV_CONTROL);
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-}
-
-static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	das800_disable(dev);
-	return 0;
-}
-
-static int das800_ai_check_chanlist(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-
-		if (chan != (chan0 + i) % s->n_chan) {
-			dev_dbg(dev->class_dev,
-				"chanlist must be consecutive, counting upwards\n");
-			return -EINVAL;
-		}
-
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"chanlist must all have the same gain\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int das800_ai_do_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	const struct das800_board *board = dev->board_ptr;
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_speed);
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		unsigned int arg = cmd->convert_arg;
-
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= das800_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int das800_ai_do_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	const struct das800_board *board = dev->board_ptr;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int gain = CR_RANGE(cmd->chanlist[0]);
-	unsigned int start_chan = CR_CHAN(cmd->chanlist[0]);
-	unsigned int end_chan = (start_chan + cmd->chanlist_len - 1) % 8;
-	unsigned int scan_chans = (end_chan << 3) | start_chan;
-	int conv_bits;
-	unsigned long irq_flags;
-
-	das800_disable(dev);
-
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	/* set scan limits */
-	das800_ind_write(dev, scan_chans, SCAN_LIMITS);
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	/* set gain */
-	if (board->resolution == 12 && gain > 0)
-		gain += 0x7;
-	gain &= 0xf;
-	outb(gain, dev->iobase + DAS800_GAIN);
-
-	/* enable auto channel scan, send interrupts on end of conversion
-	 * and set clock source to internal or external
-	 */
-	conv_bits = 0;
-	conv_bits |= EACS | IEOC;
-	if (cmd->start_src == TRIG_EXT)
-		conv_bits |= DTEN;
-	if (cmd->convert_src == TRIG_TIMER) {
-		conv_bits |= CASC | ITE;
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-	}
-
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	das800_ind_write(dev, conv_bits, CONV_CONTROL);
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	das800_enable(dev);
-	return 0;
-}
-
-static unsigned int das800_ai_get_sample(struct comedi_device *dev)
-{
-	unsigned int lsb = inb(dev->iobase + DAS800_LSB);
-	unsigned int msb = inb(dev->iobase + DAS800_MSB);
-
-	return (msb << 8) | lsb;
-}
-
-static irqreturn_t das800_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct das800_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async;
-	struct comedi_cmd *cmd;
-	unsigned long irq_flags;
-	unsigned int status;
-	unsigned int val;
-	bool fifo_empty;
-	bool fifo_overflow;
-	int i;
-
-	status = inb(dev->iobase + DAS800_STATUS);
-	if (!(status & IRQ))
-		return IRQ_NONE;
-	if (!dev->attached)
-		return IRQ_HANDLED;
-
-	async = s->async;
-	cmd = &async->cmd;
-
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	status = das800_ind_read(dev, CONTROL1) & STATUS2_HCEN;
-	/*
-	 * Don't release spinlock yet since we want to make sure
-	 * no one else disables hardware conversions.
-	 */
-
-	/* if hardware conversions are not enabled, then quit */
-	if (status == 0) {
-		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-		return IRQ_HANDLED;
-	}
-
-	for (i = 0; i < DAS802_16_HALF_FIFO_SZ; i++) {
-		val = das800_ai_get_sample(dev);
-		if (s->maxdata == 0x0fff) {
-			fifo_empty = !!(val & FIFO_EMPTY);
-			fifo_overflow = !!(val & FIFO_OVF);
-		} else {
-			/* cio-das802/16 has no fifo empty status bit */
-			fifo_empty = false;
-			fifo_overflow = !!(inb(dev->iobase + DAS800_GAIN) &
-						CIO_FFOV);
-		}
-		if (fifo_empty || fifo_overflow)
-			break;
-
-		if (s->maxdata == 0x0fff)
-			val >>= 4;	/* 12-bit sample */
-
-		val &= s->maxdata;
-		comedi_buf_write_samples(s, &val, 1);
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg) {
-			async->events |= COMEDI_CB_EOA;
-			break;
-		}
-	}
-
-	if (fifo_overflow) {
-		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-		async->events |= COMEDI_CB_ERROR;
-		comedi_handle_events(dev, s);
-		return IRQ_HANDLED;
-	}
-
-	if (!(async->events & COMEDI_CB_CANCEL_MASK)) {
-		/*
-		 * Re-enable card's interrupt.
-		 * We already have spinlock, so indirect addressing is safe
-		 */
-		das800_ind_write(dev, CONTROL1_INTE | devpriv->do_bits,
-				 CONTROL1);
-		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-	} else {
-		/* otherwise, stop taking data */
-		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-		das800_disable(dev);
-	}
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static int das800_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DAS800_STATUS);
-	if ((status & BUSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int das800_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct das800_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned long irq_flags;
-	unsigned int val;
-	int ret;
-	int i;
-
-	das800_disable(dev);
-
-	/* set multiplexer */
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	das800_ind_write(dev, chan | devpriv->do_bits, CONTROL1);
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	/* set gain / range */
-	if (s->maxdata == 0x0fff && range)
-		range += 0x7;
-	range &= 0xf;
-	outb(range, dev->iobase + DAS800_GAIN);
-
-	udelay(5);
-
-	for (i = 0; i < insn->n; i++) {
-		/* trigger conversion */
-		outb_p(0, dev->iobase + DAS800_MSB);
-
-		ret = comedi_timeout(dev, s, insn, das800_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		val = das800_ai_get_sample(dev);
-		if (s->maxdata == 0x0fff)
-			val >>= 4;	/* 12-bit sample */
-		data[i] = val & s->maxdata;
-	}
-
-	return insn->n;
-}
-
-static int das800_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	data[1] = (inb(dev->iobase + DAS800_STATUS) >> 4) & 0x7;
-
-	return insn->n;
-}
-
-static int das800_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct das800_private *devpriv = dev->private;
-	unsigned long irq_flags;
-
-	if (comedi_dio_update_state(s, data)) {
-		devpriv->do_bits = s->state << 4;
-
-		spin_lock_irqsave(&dev->spinlock, irq_flags);
-		das800_ind_write(dev, CONTROL1_INTE | devpriv->do_bits,
-				 CONTROL1);
-		spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static const struct das800_board *das800_probe(struct comedi_device *dev)
-{
-	const struct das800_board *board = dev->board_ptr;
-	int index = board ? board - das800_boards : -EINVAL;
-	int id_bits;
-	unsigned long irq_flags;
-
-	/*
-	 * The dev->board_ptr will be set by comedi_device_attach() if the
-	 * board name provided by the user matches a board->name in this
-	 * driver. If so, this function sanity checks the id_bits to verify
-	 * that the board is correct.
-	 *
-	 * If the dev->board_ptr is not set, the user is trying to attach
-	 * an unspecified board to this driver. In this case the id_bits
-	 * are used to 'probe' for the correct dev->board_ptr.
-	 */
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	id_bits = das800_ind_read(dev, ID) & 0x3;
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	switch (id_bits) {
-	case 0x0:
-		if (index == BOARD_DAS800 || index == BOARD_CIODAS800)
-			return board;
-		index = BOARD_DAS800;
-		break;
-	case 0x2:
-		if (index == BOARD_DAS801 || index == BOARD_CIODAS801)
-			return board;
-		index = BOARD_DAS801;
-		break;
-	case 0x3:
-		if (index == BOARD_DAS802 || index == BOARD_CIODAS802 ||
-		    index == BOARD_CIODAS80216)
-			return board;
-		index = BOARD_DAS802;
-		break;
-	default:
-		dev_dbg(dev->class_dev, "Board model: 0x%x (unknown)\n",
-			id_bits);
-		return NULL;
-	}
-	dev_dbg(dev->class_dev, "Board model (probed): %s series\n",
-		das800_boards[index].name);
-
-	return &das800_boards[index];
-}
-
-static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct das800_board *board;
-	struct das800_private *devpriv;
-	struct comedi_subdevice *s;
-	unsigned int irq = it->options[1];
-	unsigned long irq_flags;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x8);
-	if (ret)
-		return ret;
-
-	board = das800_probe(dev);
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	if (irq > 1 && irq <= 7) {
-		ret = request_irq(irq, das800_interrupt, 0, dev->board_name,
-				  dev);
-		if (ret == 0)
-			dev->irq = irq;
-	}
-
-	dev->pacer = comedi_8254_init(dev->iobase + DAS800_8254,
-				      I8254_OSC_BASE_1MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	s->n_chan	= 8;
-	s->maxdata	= (1 << board->resolution) - 1;
-	s->range_table	= board->ai_range;
-	s->insn_read	= das800_ai_insn_read;
-	if (dev->irq) {
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= 8;
-		s->do_cmdtest	= das800_ai_do_cmdtest;
-		s->do_cmd	= das800_ai_do_cmd;
-		s->cancel	= das800_cancel;
-	}
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 3;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= das800_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= das800_do_insn_bits;
-
-	das800_disable(dev);
-
-	/* initialize digital out channels */
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	das800_ind_write(dev, CONTROL1_INTE | devpriv->do_bits, CONTROL1);
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-
-	return 0;
-};
-
-static struct comedi_driver driver_das800 = {
-	.driver_name	= "das800",
-	.module		= THIS_MODULE,
-	.attach		= das800_attach,
-	.detach		= comedi_legacy_detach,
-	.num_names	= ARRAY_SIZE(das800_boards),
-	.board_name	= &das800_boards[0].name,
-	.offset		= sizeof(struct das800_board),
-};
-module_comedi_driver(driver_das800);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
deleted file mode 100644
index 958c0d4aae5c..000000000000
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ /dev/null
@@ -1,623 +0,0 @@
-/*
- * dmm32at.c
- * Diamond Systems Diamond-MM-32-AT Comedi driver
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: dmm32at
- * Description: Diamond Systems Diamond-MM-32-AT
- * Devices: [Diamond Systems] Diamond-MM-32-AT (dmm32at)
- * Author: Perry J. Piplani <perry.j.piplani@nasa.gov>
- * Updated: Fri Jun  4 09:13:24 CDT 2004
- * Status: experimental
- *
- * Configuration Options:
- *	comedi_config /dev/comedi0 dmm32at baseaddr,irq
- *
- * This driver is for the Diamond Systems MM-32-AT board
- *	http://www.diamondsystems.com/products/diamondmm32at
- *
- * It is being used on several projects inside NASA, without
- * problems so far. For analog input commands, TRIG_EXT is not
- * yet supported.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-#include "8255.h"
-
-/* Board register addresses */
-#define DMM32AT_AI_START_CONV_REG	0x00
-#define DMM32AT_AI_LSB_REG		0x00
-#define DMM32AT_AUX_DOUT_REG		0x01
-#define DMM32AT_AUX_DOUT2		(1 << 2)  /* J3.42 - OUT2 (OUT2EN) */
-#define DMM32AT_AUX_DOUT1		(1 << 1)  /* J3.43 */
-#define DMM32AT_AUX_DOUT0		(1 << 0)  /* J3.44 - OUT0 (OUT0EN) */
-#define DMM32AT_AI_MSB_REG		0x01
-#define DMM32AT_AI_LO_CHAN_REG		0x02
-#define DMM32AT_AI_HI_CHAN_REG		0x03
-#define DMM32AT_AUX_DI_REG		0x04
-#define DMM32AT_AUX_DI_DACBUSY		(1 << 7)
-#define DMM32AT_AUX_DI_CALBUSY		(1 << 6)
-#define DMM32AT_AUX_DI3			(1 << 3)  /* J3.45 - ADCLK (CLKSEL) */
-#define DMM32AT_AUX_DI2			(1 << 2)  /* J3.46 - GATE12 (GT12EN) */
-#define DMM32AT_AUX_DI1			(1 << 1)  /* J3.47 - GATE0 (GT0EN) */
-#define DMM32AT_AUX_DI0			(1 << 0)  /* J3.48 - CLK0 (SRC0) */
-#define DMM32AT_AO_LSB_REG		0x04
-#define DMM32AT_AO_MSB_REG		0x05
-#define DMM32AT_AO_MSB_DACH(x)		((x) << 6)
-#define DMM32AT_FIFO_DEPTH_REG		0x06
-#define DMM32AT_FIFO_CTRL_REG		0x07
-#define DMM32AT_FIFO_CTRL_FIFOEN	(1 << 3)
-#define DMM32AT_FIFO_CTRL_SCANEN	(1 << 2)
-#define DMM32AT_FIFO_CTRL_FIFORST	(1 << 1)
-#define DMM32AT_FIFO_STATUS_REG		0x07
-#define DMM32AT_FIFO_STATUS_EF		(1 << 7)
-#define DMM32AT_FIFO_STATUS_HF		(1 << 6)
-#define DMM32AT_FIFO_STATUS_FF		(1 << 5)
-#define DMM32AT_FIFO_STATUS_OVF		(1 << 4)
-#define DMM32AT_FIFO_STATUS_FIFOEN	(1 << 3)
-#define DMM32AT_FIFO_STATUS_SCANEN	(1 << 2)
-#define DMM32AT_FIFO_STATUS_PAGE_MASK	(3 << 0)
-#define DMM32AT_CTRL_REG		0x08
-#define DMM32AT_CTRL_RESETA		(1 << 5)
-#define DMM32AT_CTRL_RESETD		(1 << 4)
-#define DMM32AT_CTRL_INTRST		(1 << 3)
-#define DMM32AT_CTRL_PAGE_8254		(0 << 0)
-#define DMM32AT_CTRL_PAGE_8255		(1 << 0)
-#define DMM32AT_CTRL_PAGE_CALIB		(3 << 0)
-#define DMM32AT_AI_STATUS_REG		0x08
-#define DMM32AT_AI_STATUS_STS		(1 << 7)
-#define DMM32AT_AI_STATUS_SD1		(1 << 6)
-#define DMM32AT_AI_STATUS_SD0		(1 << 5)
-#define DMM32AT_AI_STATUS_ADCH_MASK	(0x1f << 0)
-#define DMM32AT_INTCLK_REG		0x09
-#define DMM32AT_INTCLK_ADINT		(1 << 7)
-#define DMM32AT_INTCLK_DINT		(1 << 6)
-#define DMM32AT_INTCLK_TINT		(1 << 5)
-#define DMM32AT_INTCLK_CLKEN		(1 << 1)  /* 1=see below  0=software */
-#define DMM32AT_INTCLK_CLKSEL		(1 << 0)  /* 1=OUT2  0=EXTCLK */
-#define DMM32AT_CTRDIO_CFG_REG		0x0a
-#define DMM32AT_CTRDIO_CFG_FREQ12	(1 << 7)  /* CLK12 1=100KHz 0=10MHz */
-#define DMM32AT_CTRDIO_CFG_FREQ0	(1 << 6)  /* CLK0  1=10KHz  0=10MHz */
-#define DMM32AT_CTRDIO_CFG_OUT2EN	(1 << 5)  /* J3.42 1=OUT2 is DOUT2 */
-#define DMM32AT_CTRDIO_CFG_OUT0EN	(1 << 4)  /* J3,44 1=OUT0 is DOUT0 */
-#define DMM32AT_CTRDIO_CFG_GT0EN	(1 << 2)  /* J3.47 1=DIN1 is GATE0 */
-#define DMM32AT_CTRDIO_CFG_SRC0		(1 << 1)  /* CLK0 is 0=FREQ0 1=J3.48 */
-#define DMM32AT_CTRDIO_CFG_GT12EN	(1 << 0)  /* J3.46 1=DIN2 is GATE12 */
-#define DMM32AT_AI_CFG_REG		0x0b
-#define DMM32AT_AI_CFG_SCINT_20US	(0 << 4)
-#define DMM32AT_AI_CFG_SCINT_15US	(1 << 4)
-#define DMM32AT_AI_CFG_SCINT_10US	(2 << 4)
-#define DMM32AT_AI_CFG_SCINT_5US	(3 << 4)
-#define DMM32AT_AI_CFG_RANGE		(1 << 3)  /* 0=5V  1=10V */
-#define DMM32AT_AI_CFG_ADBU		(1 << 2)  /* 0=bipolar  1=unipolar */
-#define DMM32AT_AI_CFG_GAIN(x)		((x) << 0)
-#define DMM32AT_AI_READBACK_REG		0x0b
-#define DMM32AT_AI_READBACK_WAIT	(1 << 7)  /* DMM32AT_AI_STATUS_STS */
-#define DMM32AT_AI_READBACK_RANGE	(1 << 3)
-#define DMM32AT_AI_READBACK_ADBU	(1 << 2)
-#define DMM32AT_AI_READBACK_GAIN_MASK	(3 << 0)
-
-#define DMM32AT_CLK1 0x0d
-#define DMM32AT_CLK2 0x0e
-#define DMM32AT_CLKCT 0x0f
-
-#define DMM32AT_8255_IOBASE		0x0c  /* Page 1 registers */
-
-/* Board register values. */
-
-/* DMM32AT_AI_CFG_REG 0x0b */
-#define DMM32AT_RANGE_U10 0x0c
-#define DMM32AT_RANGE_U5 0x0d
-#define DMM32AT_RANGE_B10 0x08
-#define DMM32AT_RANGE_B5 0x00
-
-/* DMM32AT_CLKCT 0x0f */
-#define DMM32AT_CLKCT1 0x56	/* mode3 counter 1 - write low byte only */
-#define DMM32AT_CLKCT2 0xb6	/*  mode3 counter 2 - write high and low byte */
-
-/* board AI ranges in comedi structure */
-static const struct comedi_lrange dmm32at_airanges = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		BIP_RANGE(10),
-		BIP_RANGE(5)
-	}
-};
-
-/* register values for above ranges */
-static const unsigned char dmm32at_rangebits[] = {
-	DMM32AT_RANGE_U10,
-	DMM32AT_RANGE_U5,
-	DMM32AT_RANGE_B10,
-	DMM32AT_RANGE_B5,
-};
-
-/* only one of these ranges is valid, as set by a jumper on the
- * board. The application should only use the range set by the jumper
- */
-static const struct comedi_lrange dmm32at_aoranges = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		BIP_RANGE(10),
-		BIP_RANGE(5)
-	}
-};
-
-static void dmm32at_ai_set_chanspec(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    unsigned int chanspec, int nchan)
-{
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int last_chan = (chan + nchan - 1) % s->n_chan;
-
-	outb(DMM32AT_FIFO_CTRL_FIFORST, dev->iobase + DMM32AT_FIFO_CTRL_REG);
-
-	if (nchan > 1)
-		outb(DMM32AT_FIFO_CTRL_SCANEN,
-		     dev->iobase + DMM32AT_FIFO_CTRL_REG);
-
-	outb(chan, dev->iobase + DMM32AT_AI_LO_CHAN_REG);
-	outb(last_chan, dev->iobase + DMM32AT_AI_HI_CHAN_REG);
-	outb(dmm32at_rangebits[range], dev->iobase + DMM32AT_AI_CFG_REG);
-}
-
-static unsigned int dmm32at_ai_get_sample(struct comedi_device *dev,
-					  struct comedi_subdevice *s)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + DMM32AT_AI_LSB_REG);
-	val |= (inb(dev->iobase + DMM32AT_AI_MSB_REG) << 8);
-
-	/* munge two's complement value to offset binary */
-	return comedi_offset_munge(s, val);
-}
-
-static int dmm32at_ai_status(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned long context)
-{
-	unsigned char status;
-
-	status = inb(dev->iobase + context);
-	if ((status & DMM32AT_AI_STATUS_STS) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int dmm32at_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	int ret;
-	int i;
-
-	dmm32at_ai_set_chanspec(dev, s, insn->chanspec, 1);
-
-	/* wait for circuit to settle */
-	ret = comedi_timeout(dev, s, insn, dmm32at_ai_status,
-			     DMM32AT_AI_READBACK_REG);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < insn->n; i++) {
-		outb(0xff, dev->iobase + DMM32AT_AI_START_CONV_REG);
-
-		ret = comedi_timeout(dev, s, insn, dmm32at_ai_status,
-				     DMM32AT_AI_STATUS_REG);
-		if (ret)
-			return ret;
-
-		data[i] = dmm32at_ai_get_sample(dev, s);
-	}
-
-	return insn->n;
-}
-
-static int dmm32at_ai_check_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	int i;
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-
-		if (chan != (chan0 + i) % s->n_chan) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must be consecutive channels, counting upwards\n");
-			return -EINVAL;
-		}
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must all have the same gain\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int dmm32at_ai_cmdtest(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, 1000000);
-	err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 1000000000);
-
-	if (cmd->convert_arg >= 17500)
-		cmd->convert_arg = 20000;
-	else if (cmd->convert_arg >= 12500)
-		cmd->convert_arg = 15000;
-	else if (cmd->convert_arg >= 7500)
-		cmd->convert_arg = 10000;
-	else
-		cmd->convert_arg = 5000;
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else /* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	arg = cmd->convert_arg * cmd->scan_end_arg;
-	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, arg);
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= dmm32at_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static void dmm32at_setaitimer(struct comedi_device *dev, unsigned int nansec)
-{
-	unsigned char lo1, lo2, hi2;
-	unsigned short both2;
-
-	/* based on 10mhz clock */
-	lo1 = 200;
-	both2 = nansec / 20000;
-	hi2 = (both2 & 0xff00) >> 8;
-	lo2 = both2 & 0x00ff;
-
-	/* set counter clocks to 10MHz, disable all aux dio */
-	outb(0, dev->iobase + DMM32AT_CTRDIO_CFG_REG);
-
-	/* get access to the clock regs */
-	outb(DMM32AT_CTRL_PAGE_8254, dev->iobase + DMM32AT_CTRL_REG);
-
-	/* write the counter 1 control word and low byte to counter */
-	outb(DMM32AT_CLKCT1, dev->iobase + DMM32AT_CLKCT);
-	outb(lo1, dev->iobase + DMM32AT_CLK1);
-
-	/* write the counter 2 control word and low byte then to counter */
-	outb(DMM32AT_CLKCT2, dev->iobase + DMM32AT_CLKCT);
-	outb(lo2, dev->iobase + DMM32AT_CLK2);
-	outb(hi2, dev->iobase + DMM32AT_CLK2);
-
-	/* enable the ai conversion interrupt and the clock to start scans */
-	outb(DMM32AT_INTCLK_ADINT |
-	     DMM32AT_INTCLK_CLKEN | DMM32AT_INTCLK_CLKSEL,
-	     dev->iobase + DMM32AT_INTCLK_REG);
-}
-
-static int dmm32at_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	dmm32at_ai_set_chanspec(dev, s, cmd->chanlist[0], cmd->chanlist_len);
-
-	/* reset the interrupt just in case */
-	outb(DMM32AT_CTRL_INTRST, dev->iobase + DMM32AT_CTRL_REG);
-
-	/*
-	 * wait for circuit to settle
-	 * we don't have the 'insn' here but it's not needed
-	 */
-	ret = comedi_timeout(dev, s, NULL, dmm32at_ai_status,
-			     DMM32AT_AI_READBACK_REG);
-	if (ret)
-		return ret;
-
-	if (cmd->stop_src == TRIG_NONE || cmd->stop_arg > 1) {
-		/* start the clock and enable the interrupts */
-		dmm32at_setaitimer(dev, cmd->scan_begin_arg);
-	} else {
-		/* start the interrupts and initiate a single scan */
-		outb(DMM32AT_INTCLK_ADINT, dev->iobase + DMM32AT_INTCLK_REG);
-		outb(0xff, dev->iobase + DMM32AT_AI_START_CONV_REG);
-	}
-
-	return 0;
-}
-
-static int dmm32at_ai_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	/* disable further interrupts and clocks */
-	outb(0x0, dev->iobase + DMM32AT_INTCLK_REG);
-	return 0;
-}
-
-static irqreturn_t dmm32at_isr(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	unsigned char intstat;
-	unsigned int val;
-	int i;
-
-	if (!dev->attached) {
-		dev_err(dev->class_dev, "spurious interrupt\n");
-		return IRQ_HANDLED;
-	}
-
-	intstat = inb(dev->iobase + DMM32AT_INTCLK_REG);
-
-	if (intstat & DMM32AT_INTCLK_ADINT) {
-		struct comedi_subdevice *s = dev->read_subdev;
-		struct comedi_cmd *cmd = &s->async->cmd;
-
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			val = dmm32at_ai_get_sample(dev, s);
-			comedi_buf_write_samples(s, &val, 1);
-		}
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    s->async->scans_done >= cmd->stop_arg)
-			s->async->events |= COMEDI_CB_EOA;
-
-		comedi_handle_events(dev, s);
-	}
-
-	/* reset the interrupt */
-	outb(DMM32AT_CTRL_INTRST, dev->iobase + DMM32AT_CTRL_REG);
-	return IRQ_HANDLED;
-}
-
-static int dmm32at_ao_eoc(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_insn *insn,
-			  unsigned long context)
-{
-	unsigned char status;
-
-	status = inb(dev->iobase + DMM32AT_AUX_DI_REG);
-	if ((status & DMM32AT_AUX_DI_DACBUSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int dmm32at_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-		int ret;
-
-		/* write LSB then MSB + chan to load DAC */
-		outb(val & 0xff, dev->iobase + DMM32AT_AO_LSB_REG);
-		outb((val >> 8) | DMM32AT_AO_MSB_DACH(chan),
-		     dev->iobase + DMM32AT_AO_MSB_REG);
-
-		/* wait for circuit to settle */
-		ret = comedi_timeout(dev, s, insn, dmm32at_ao_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* dummy read to update DAC */
-		inb(dev->iobase + DMM32AT_AO_MSB_REG);
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int dmm32at_8255_io(struct comedi_device *dev,
-			   int dir, int port, int data, unsigned long regbase)
-{
-	/* get access to the DIO regs */
-	outb(DMM32AT_CTRL_PAGE_8255, dev->iobase + DMM32AT_CTRL_REG);
-
-	if (dir) {
-		outb(data, dev->iobase + regbase + port);
-		return 0;
-	}
-	return inb(dev->iobase + regbase + port);
-}
-
-/* Make sure the board is there and put it to a known state */
-static int dmm32at_reset(struct comedi_device *dev)
-{
-	unsigned char aihi, ailo, fifostat, aistat, intstat, airback;
-
-	/* reset the board */
-	outb(DMM32AT_CTRL_RESETA, dev->iobase + DMM32AT_CTRL_REG);
-
-	/* allow a millisecond to reset */
-	udelay(1000);
-
-	/* zero scan and fifo control */
-	outb(0x0, dev->iobase + DMM32AT_FIFO_CTRL_REG);
-
-	/* zero interrupt and clock control */
-	outb(0x0, dev->iobase + DMM32AT_INTCLK_REG);
-
-	/* write a test channel range, the high 3 bits should drop */
-	outb(0x80, dev->iobase + DMM32AT_AI_LO_CHAN_REG);
-	outb(0xff, dev->iobase + DMM32AT_AI_HI_CHAN_REG);
-
-	/* set the range at 10v unipolar */
-	outb(DMM32AT_RANGE_U10, dev->iobase + DMM32AT_AI_CFG_REG);
-
-	/* should take 10 us to settle, here's a hundred */
-	udelay(100);
-
-	/* read back the values */
-	ailo = inb(dev->iobase + DMM32AT_AI_LO_CHAN_REG);
-	aihi = inb(dev->iobase + DMM32AT_AI_HI_CHAN_REG);
-	fifostat = inb(dev->iobase + DMM32AT_FIFO_STATUS_REG);
-	aistat = inb(dev->iobase + DMM32AT_AI_STATUS_REG);
-	intstat = inb(dev->iobase + DMM32AT_INTCLK_REG);
-	airback = inb(dev->iobase + DMM32AT_AI_READBACK_REG);
-
-	/*
-	 * NOTE: The (DMM32AT_AI_STATUS_SD1 | DMM32AT_AI_STATUS_SD0)
-	 * test makes this driver only work if the board is configured
-	 * with all A/D channels set for single-ended operation.
-	 */
-	if (ailo != 0x00 || aihi != 0x1f ||
-	    fifostat != DMM32AT_FIFO_STATUS_EF ||
-	    aistat != (DMM32AT_AI_STATUS_SD1 | DMM32AT_AI_STATUS_SD0) ||
-	    intstat != 0x00 || airback != 0x0c)
-		return -EIO;
-
-	return 0;
-}
-
-static int dmm32at_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	ret = dmm32at_reset(dev);
-	if (ret) {
-		dev_err(dev->class_dev, "board detection failed\n");
-		return ret;
-	}
-
-	if (it->options[1]) {
-		ret = request_irq(it->options[1], dmm32at_isr, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan	= 32;
-	s->maxdata	= 0xffff;
-	s->range_table	= &dmm32at_airanges;
-	s->insn_read	= dmm32at_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= s->n_chan;
-		s->do_cmd	= dmm32at_ai_cmd;
-		s->do_cmdtest	= dmm32at_ai_cmdtest;
-		s->cancel	= dmm32at_ai_cancel;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &dmm32at_aoranges;
-	s->insn_write	= dmm32at_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[2];
-	return subdev_8255_init(dev, s, dmm32at_8255_io, DMM32AT_8255_IOBASE);
-}
-
-static struct comedi_driver dmm32at_driver = {
-	.driver_name	= "dmm32at",
-	.module		= THIS_MODULE,
-	.attach		= dmm32at_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(dmm32at_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi: Diamond Systems Diamond-MM-32-AT");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
deleted file mode 100644
index 80e38dedd359..000000000000
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ /dev/null
@@ -1,639 +0,0 @@
-/*
- * comedi/drivers/dt2801.c
- * Device Driver for DataTranslation DT2801
- *
- */
-/*
-Driver: dt2801
-Description: Data Translation DT2801 series and DT01-EZ
-Author: ds
-Status: works
-Devices: [Data Translation] DT2801 (dt2801), DT2801-A, DT2801/5716A,
-  DT2805, DT2805/5716A, DT2808, DT2818, DT2809, DT01-EZ
-
-This driver can autoprobe the type of board.
-
-Configuration options:
-  [0] - I/O port base address
-  [1] - unused
-  [2] - A/D reference 0=differential, 1=single-ended
-  [3] - A/D range
-	  0 = [-10, 10]
-	  1 = [0,10]
-  [4] - D/A 0 range
-	  0 = [-10, 10]
-	  1 = [-5,5]
-	  2 = [-2.5,2.5]
-	  3 = [0,10]
-	  4 = [0,5]
-  [5] - D/A 1 range (same choices)
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-#include <linux/delay.h>
-
-#define DT2801_TIMEOUT 1000
-
-/* Hardware Configuration */
-/* ====================== */
-
-#define DT2801_MAX_DMA_SIZE (64 * 1024)
-
-/* define's */
-/* ====================== */
-
-/* Commands */
-#define DT_C_RESET       0x0
-#define DT_C_CLEAR_ERR   0x1
-#define DT_C_READ_ERRREG 0x2
-#define DT_C_SET_CLOCK   0x3
-
-#define DT_C_TEST        0xb
-#define DT_C_STOP        0xf
-
-#define DT_C_SET_DIGIN   0x4
-#define DT_C_SET_DIGOUT  0x5
-#define DT_C_READ_DIG    0x6
-#define DT_C_WRITE_DIG   0x7
-
-#define DT_C_WRITE_DAIM  0x8
-#define DT_C_SET_DA      0x9
-#define DT_C_WRITE_DA    0xa
-
-#define DT_C_READ_ADIM   0xc
-#define DT_C_SET_AD      0xd
-#define DT_C_READ_AD     0xe
-
-/* Command modifiers (only used with read/write), EXTTRIG can be
-   used with some other commands.
-*/
-#define DT_MOD_DMA     (1<<4)
-#define DT_MOD_CONT    (1<<5)
-#define DT_MOD_EXTCLK  (1<<6)
-#define DT_MOD_EXTTRIG (1<<7)
-
-/* Bits in status register */
-#define DT_S_DATA_OUT_READY   (1<<0)
-#define DT_S_DATA_IN_FULL     (1<<1)
-#define DT_S_READY            (1<<2)
-#define DT_S_COMMAND          (1<<3)
-#define DT_S_COMPOSITE_ERROR  (1<<7)
-
-/* registers */
-#define DT2801_DATA		0
-#define DT2801_STATUS		1
-#define DT2801_CMD		1
-
-#if 0
-/* ignore 'defined but not used' warning */
-static const struct comedi_lrange range_dt2801_ai_pgh_bipolar = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-#endif
-static const struct comedi_lrange range_dt2801_ai_pgl_bipolar = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.02)
-	}
-};
-
-#if 0
-/* ignore 'defined but not used' warning */
-static const struct comedi_lrange range_dt2801_ai_pgh_unipolar = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-#endif
-static const struct comedi_lrange range_dt2801_ai_pgl_unipolar = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.02)
-	}
-};
-
-struct dt2801_board {
-	const char *name;
-	int boardcode;
-	int ad_diff;
-	int ad_chan;
-	int adbits;
-	int adrangetype;
-	int dabits;
-};
-
-/* Typeid's for the different boards of the DT2801-series
-   (taken from the test-software, that comes with the board)
-   */
-static const struct dt2801_board boardtypes[] = {
-	{
-	 .name = "dt2801",
-	 .boardcode = 0x09,
-	 .ad_diff = 2,
-	 .ad_chan = 16,
-	 .adbits = 12,
-	 .adrangetype = 0,
-	 .dabits = 12},
-	{
-	 .name = "dt2801-a",
-	 .boardcode = 0x52,
-	 .ad_diff = 2,
-	 .ad_chan = 16,
-	 .adbits = 12,
-	 .adrangetype = 0,
-	 .dabits = 12},
-	{
-	 .name = "dt2801/5716a",
-	 .boardcode = 0x82,
-	 .ad_diff = 1,
-	 .ad_chan = 16,
-	 .adbits = 16,
-	 .adrangetype = 1,
-	 .dabits = 12},
-	{
-	 .name = "dt2805",
-	 .boardcode = 0x12,
-	 .ad_diff = 1,
-	 .ad_chan = 16,
-	 .adbits = 12,
-	 .adrangetype = 0,
-	 .dabits = 12},
-	{
-	 .name = "dt2805/5716a",
-	 .boardcode = 0x92,
-	 .ad_diff = 1,
-	 .ad_chan = 16,
-	 .adbits = 16,
-	 .adrangetype = 1,
-	 .dabits = 12},
-	{
-	 .name = "dt2808",
-	 .boardcode = 0x20,
-	 .ad_diff = 0,
-	 .ad_chan = 16,
-	 .adbits = 12,
-	 .adrangetype = 2,
-	 .dabits = 8},
-	{
-	 .name = "dt2818",
-	 .boardcode = 0xa2,
-	 .ad_diff = 0,
-	 .ad_chan = 4,
-	 .adbits = 12,
-	 .adrangetype = 0,
-	 .dabits = 12},
-	{
-	 .name = "dt2809",
-	 .boardcode = 0xb0,
-	 .ad_diff = 0,
-	 .ad_chan = 8,
-	 .adbits = 12,
-	 .adrangetype = 1,
-	 .dabits = 12},
-};
-
-struct dt2801_private {
-	const struct comedi_lrange *dac_range_types[2];
-};
-
-/* These are the low-level routines:
-   writecommand: write a command to the board
-   writedata: write data byte
-   readdata: read data byte
- */
-
-/* Only checks DataOutReady-flag, not the Ready-flag as it is done
-   in the examples of the manual. I don't see why this should be
-   necessary. */
-static int dt2801_readdata(struct comedi_device *dev, int *data)
-{
-	int stat = 0;
-	int timeout = DT2801_TIMEOUT;
-
-	do {
-		stat = inb_p(dev->iobase + DT2801_STATUS);
-		if (stat & (DT_S_COMPOSITE_ERROR | DT_S_READY))
-			return stat;
-		if (stat & DT_S_DATA_OUT_READY) {
-			*data = inb_p(dev->iobase + DT2801_DATA);
-			return 0;
-		}
-	} while (--timeout > 0);
-
-	return -ETIME;
-}
-
-static int dt2801_readdata2(struct comedi_device *dev, int *data)
-{
-	int lb = 0;
-	int hb = 0;
-	int ret;
-
-	ret = dt2801_readdata(dev, &lb);
-	if (ret)
-		return ret;
-	ret = dt2801_readdata(dev, &hb);
-	if (ret)
-		return ret;
-
-	*data = (hb << 8) + lb;
-	return 0;
-}
-
-static int dt2801_writedata(struct comedi_device *dev, unsigned int data)
-{
-	int stat = 0;
-	int timeout = DT2801_TIMEOUT;
-
-	do {
-		stat = inb_p(dev->iobase + DT2801_STATUS);
-
-		if (stat & DT_S_COMPOSITE_ERROR)
-			return stat;
-		if (!(stat & DT_S_DATA_IN_FULL)) {
-			outb_p(data & 0xff, dev->iobase + DT2801_DATA);
-			return 0;
-		}
-	} while (--timeout > 0);
-
-	return -ETIME;
-}
-
-static int dt2801_writedata2(struct comedi_device *dev, unsigned int data)
-{
-	int ret;
-
-	ret = dt2801_writedata(dev, data & 0xff);
-	if (ret < 0)
-		return ret;
-	ret = dt2801_writedata(dev, data >> 8);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int dt2801_wait_for_ready(struct comedi_device *dev)
-{
-	int timeout = DT2801_TIMEOUT;
-	int stat;
-
-	stat = inb_p(dev->iobase + DT2801_STATUS);
-	if (stat & DT_S_READY)
-		return 0;
-	do {
-		stat = inb_p(dev->iobase + DT2801_STATUS);
-
-		if (stat & DT_S_COMPOSITE_ERROR)
-			return stat;
-		if (stat & DT_S_READY)
-			return 0;
-	} while (--timeout > 0);
-
-	return -ETIME;
-}
-
-static void dt2801_writecmd(struct comedi_device *dev, int command)
-{
-	int stat;
-
-	dt2801_wait_for_ready(dev);
-
-	stat = inb_p(dev->iobase + DT2801_STATUS);
-	if (stat & DT_S_COMPOSITE_ERROR) {
-		dev_dbg(dev->class_dev,
-			"composite-error in %s, ignoring\n", __func__);
-	}
-	if (!(stat & DT_S_READY))
-		dev_dbg(dev->class_dev, "!ready in %s, ignoring\n", __func__);
-	outb_p(command, dev->iobase + DT2801_CMD);
-}
-
-static int dt2801_reset(struct comedi_device *dev)
-{
-	int board_code = 0;
-	unsigned int stat;
-	int timeout;
-
-	/* pull random data from data port */
-	inb_p(dev->iobase + DT2801_DATA);
-	inb_p(dev->iobase + DT2801_DATA);
-	inb_p(dev->iobase + DT2801_DATA);
-	inb_p(dev->iobase + DT2801_DATA);
-
-	/* dt2801_writecmd(dev,DT_C_STOP); */
-	outb_p(DT_C_STOP, dev->iobase + DT2801_CMD);
-
-	/* dt2801_wait_for_ready(dev); */
-	udelay(100);
-	timeout = 10000;
-	do {
-		stat = inb_p(dev->iobase + DT2801_STATUS);
-		if (stat & DT_S_READY)
-			break;
-	} while (timeout--);
-	if (!timeout)
-		dev_dbg(dev->class_dev, "timeout 1 status=0x%02x\n", stat);
-
-	/* dt2801_readdata(dev,&board_code); */
-
-	outb_p(DT_C_RESET, dev->iobase + DT2801_CMD);
-	/* dt2801_writecmd(dev,DT_C_RESET); */
-
-	udelay(100);
-	timeout = 10000;
-	do {
-		stat = inb_p(dev->iobase + DT2801_STATUS);
-		if (stat & DT_S_READY)
-			break;
-	} while (timeout--);
-	if (!timeout)
-		dev_dbg(dev->class_dev, "timeout 2 status=0x%02x\n", stat);
-
-	dt2801_readdata(dev, &board_code);
-
-	return board_code;
-}
-
-static int probe_number_of_ai_chans(struct comedi_device *dev)
-{
-	int n_chans;
-	int stat;
-	int data;
-
-	for (n_chans = 0; n_chans < 16; n_chans++) {
-		dt2801_writecmd(dev, DT_C_READ_ADIM);
-		dt2801_writedata(dev, 0);
-		dt2801_writedata(dev, n_chans);
-		stat = dt2801_readdata2(dev, &data);
-
-		if (stat)
-			break;
-	}
-
-	dt2801_reset(dev);
-	dt2801_reset(dev);
-
-	return n_chans;
-}
-
-static const struct comedi_lrange *dac_range_table[] = {
-	&range_bipolar10,
-	&range_bipolar5,
-	&range_bipolar2_5,
-	&range_unipolar10,
-	&range_unipolar5
-};
-
-static const struct comedi_lrange *dac_range_lkup(int opt)
-{
-	if (opt < 0 || opt >= 5)
-		return &range_unknown;
-	return dac_range_table[opt];
-}
-
-static const struct comedi_lrange *ai_range_lkup(int type, int opt)
-{
-	switch (type) {
-	case 0:
-		return (opt) ?
-		    &range_dt2801_ai_pgl_unipolar :
-		    &range_dt2801_ai_pgl_bipolar;
-	case 1:
-		return (opt) ? &range_unipolar10 : &range_bipolar10;
-	case 2:
-		return &range_unipolar5;
-	}
-	return &range_unknown;
-}
-
-static int dt2801_error(struct comedi_device *dev, int stat)
-{
-	if (stat < 0) {
-		if (stat == -ETIME)
-			dev_dbg(dev->class_dev, "timeout\n");
-		else
-			dev_dbg(dev->class_dev, "error %d\n", stat);
-		return stat;
-	}
-	dev_dbg(dev->class_dev, "error status 0x%02x, resetting...\n", stat);
-
-	dt2801_reset(dev);
-	dt2801_reset(dev);
-
-	return -EIO;
-}
-
-static int dt2801_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	int d;
-	int stat;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		dt2801_writecmd(dev, DT_C_READ_ADIM);
-		dt2801_writedata(dev, CR_RANGE(insn->chanspec));
-		dt2801_writedata(dev, CR_CHAN(insn->chanspec));
-		stat = dt2801_readdata2(dev, &d);
-
-		if (stat != 0)
-			return dt2801_error(dev, stat);
-
-		data[i] = d;
-	}
-
-	return i;
-}
-
-static int dt2801_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	dt2801_writecmd(dev, DT_C_WRITE_DAIM);
-	dt2801_writedata(dev, chan);
-	dt2801_writedata2(dev, data[0]);
-
-	s->readback[chan] = data[0];
-
-	return 1;
-}
-
-static int dt2801_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	int which = (s == &dev->subdevices[3]) ? 1 : 0;
-	unsigned int val = 0;
-
-	if (comedi_dio_update_state(s, data)) {
-		dt2801_writecmd(dev, DT_C_WRITE_DIG);
-		dt2801_writedata(dev, which);
-		dt2801_writedata(dev, s->state);
-	}
-
-	dt2801_writecmd(dev, DT_C_READ_DIG);
-	dt2801_writedata(dev, which);
-	dt2801_readdata(dev, &val);
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int dt2801_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0xff);
-	if (ret)
-		return ret;
-
-	dt2801_writecmd(dev, s->io_bits ? DT_C_SET_DIGOUT : DT_C_SET_DIGIN);
-	dt2801_writedata(dev, (s == &dev->subdevices[3]) ? 1 : 0);
-
-	return insn->n;
-}
-
-/*
-   options:
-	[0] - i/o base
-	[1] - unused
-	[2] - a/d 0=differential, 1=single-ended
-	[3] - a/d range 0=[-10,10], 1=[0,10]
-	[4] - dac0 range 0=[-10,10], 1=[-5,5], 2=[-2.5,2.5] 3=[0,10], 4=[0,5]
-	[5] - dac1 range 0=[-10,10], 1=[-5,5], 2=[-2.5,2.5] 3=[0,10], 4=[0,5]
-*/
-static int dt2801_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct dt2801_board *board;
-	struct dt2801_private *devpriv;
-	struct comedi_subdevice *s;
-	int board_code, type;
-	int ret = 0;
-	int n_ai_chans;
-
-	ret = comedi_request_region(dev, it->options[0], 0x2);
-	if (ret)
-		return ret;
-
-	/* do some checking */
-
-	board_code = dt2801_reset(dev);
-
-	/* heh.  if it didn't work, try it again. */
-	if (!board_code)
-		board_code = dt2801_reset(dev);
-
-	for (type = 0; type < ARRAY_SIZE(boardtypes); type++) {
-		if (boardtypes[type].boardcode == board_code)
-			goto havetype;
-	}
-	dev_dbg(dev->class_dev,
-		"unrecognized board code=0x%02x, contact author\n", board_code);
-	type = 0;
-
-havetype:
-	dev->board_ptr = boardtypes + type;
-	board = dev->board_ptr;
-
-	n_ai_chans = probe_number_of_ai_chans(dev);
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		goto out;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	dev->board_name = board->name;
-
-	s = &dev->subdevices[0];
-	/* ai subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-#if 1
-	s->n_chan = n_ai_chans;
-#else
-	if (it->options[2])
-		s->n_chan = board->ad_chan;
-	else
-		s->n_chan = board->ad_chan / 2;
-#endif
-	s->maxdata = (1 << board->adbits) - 1;
-	s->range_table = ai_range_lkup(board->adrangetype, it->options[3]);
-	s->insn_read = dt2801_ai_insn_read;
-
-	s = &dev->subdevices[1];
-	/* ao subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 2;
-	s->maxdata = (1 << board->dabits) - 1;
-	s->range_table_list = devpriv->dac_range_types;
-	devpriv->dac_range_types[0] = dac_range_lkup(it->options[4]);
-	devpriv->dac_range_types[1] = dac_range_lkup(it->options[5]);
-	s->insn_write = dt2801_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	/* 1st digital subdevice */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = dt2801_dio_insn_bits;
-	s->insn_config = dt2801_dio_insn_config;
-
-	s = &dev->subdevices[3];
-	/* 2nd digital subdevice */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = dt2801_dio_insn_bits;
-	s->insn_config = dt2801_dio_insn_config;
-
-	ret = 0;
-out:
-	return ret;
-}
-
-static struct comedi_driver dt2801_driver = {
-	.driver_name	= "dt2801",
-	.module		= THIS_MODULE,
-	.attach		= dt2801_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(dt2801_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
deleted file mode 100644
index a80773291fdc..000000000000
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ /dev/null
@@ -1,474 +0,0 @@
-/*
-   comedi/drivers/dt2811.c
-   Hardware driver for Data Translation DT2811
-
-   COMEDI - Linux Control and Measurement Device Interface
-   History:
-   Base Version  - David A. Schleef <ds@schleef.org>
-   December 1998 - Updated to work.  David does not have a DT2811
-   board any longer so this was suffering from bitrot.
-   Updated performed by ...
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
- */
-/*
-Driver: dt2811
-Description: Data Translation DT2811
-Author: ds
-Devices: [Data Translation] DT2811-PGL (dt2811-pgl), DT2811-PGH (dt2811-pgh)
-Status: works
-
-Configuration options:
-  [0] - I/O port base address
-  [1] - IRQ, although this is currently unused
-  [2] - A/D reference
-	  0 = signle-ended
-	  1 = differential
-	  2 = pseudo-differential (common reference)
-  [3] - A/D range
-	  0 = [-5, 5]
-	  1 = [-2.5, 2.5]
-	  2 = [0, 5]
-  [4] - D/A 0 range (same choices)
-  [4] - D/A 1 range (same choices)
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-static const struct comedi_lrange range_dt2811_pgh_ai_5_unipolar = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		UNI_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_dt2811_pgh_ai_2_5_bipolar = {
-	4, {
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		BIP_RANGE(0.3125)
-	}
-};
-
-static const struct comedi_lrange range_dt2811_pgh_ai_5_bipolar = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_dt2811_pgl_ai_5_unipolar = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(0.5),
-		UNI_RANGE(0.05),
-		UNI_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_dt2811_pgl_ai_2_5_bipolar = {
-	4, {
-		BIP_RANGE(2.5),
-		BIP_RANGE(0.25),
-		BIP_RANGE(0.025),
-		BIP_RANGE(0.005)
-	}
-};
-
-static const struct comedi_lrange range_dt2811_pgl_ai_5_bipolar = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.01)
-	}
-};
-
-/*
-
-   0x00    ADCSR R/W  A/D Control/Status Register
-   bit 7 - (R) 1 indicates A/D conversion done
-   reading ADDAT clears bit
-   (W) ignored
-   bit 6 - (R) 1 indicates A/D error
-   (W) ignored
-   bit 5 - (R) 1 indicates A/D busy, cleared at end
-   of conversion
-   (W) ignored
-   bit 4 - (R) 0
-   (W)
-   bit 3 - (R) 0
-   bit 2 - (R/W) 1 indicates interrupts enabled
-   bits 1,0 - (R/W) mode bits
-   00  single conversion on ADGCR load
-   01  continuous conversion, internal clock,
-   (clock enabled on ADGCR load)
-   10  continuous conversion, internal clock,
-   external trigger
-   11  continuous conversion, external clock,
-   external trigger
-
-   0x01    ADGCR R/W A/D Gain/Channel Register
-   bit 6,7 - (R/W) gain select
-   00  gain=1, both PGH, PGL models
-   01  gain=2 PGH, 10 PGL
-   10  gain=4 PGH, 100 PGL
-   11  gain=8 PGH, 500 PGL
-   bit 4,5 - reserved
-   bit 3-0 - (R/W) channel select
-   channel number from 0-15
-
-   0x02,0x03 (R) ADDAT A/D Data Register
-   (W) DADAT0 D/A Data Register 0
-   0x02 low byte
-   0x03 high byte
-
-   0x04,0x05 (W) DADAT0 D/A Data Register 1
-
-   0x06 (R) DIO0 Digital Input Port 0
-   (W) DIO1 Digital Output Port 1
-
-   0x07 TMRCTR (R/W) Timer/Counter Register
-   bits 6,7 - reserved
-   bits 5-3 - Timer frequency control (mantissa)
-   543  divisor  freqency (kHz)
-   000  1        600
-   001  10       60
-   010  2        300
-   011  3        200
-   100  4        150
-   101  5        120
-   110  6        100
-   111  12       50
-   bits 2-0 - Timer frequency control (exponent)
-   210  multiply divisor/divide frequency by
-   000  1
-   001  10
-   010  100
-   011  1000
-   100  10000
-   101  100000
-   110  1000000
-   111  10000000
-
- */
-
-#define TIMEOUT 10000
-
-#define DT2811_ADCSR 0
-#define DT2811_ADGCR 1
-#define DT2811_ADDATLO 2
-#define DT2811_ADDATHI 3
-#define DT2811_DADAT0LO 2
-#define DT2811_DADAT0HI 3
-#define DT2811_DADAT1LO 4
-#define DT2811_DADAT1HI 5
-#define DT2811_DIO 6
-#define DT2811_TMRCTR 7
-
-/*
- * flags
- */
-
-/* ADCSR */
-
-#define DT2811_ADDONE   0x80
-#define DT2811_ADERROR  0x40
-#define DT2811_ADBUSY   0x20
-#define DT2811_CLRERROR 0x10
-#define DT2811_INTENB   0x04
-#define DT2811_ADMODE   0x03
-
-struct dt2811_board {
-	const char *name;
-	const struct comedi_lrange *bip_5;
-	const struct comedi_lrange *bip_2_5;
-	const struct comedi_lrange *unip_5;
-};
-
-enum { card_2811_pgh, card_2811_pgl };
-
-struct dt2811_private {
-	int ntrig;
-	int curadchan;
-	enum {
-		adc_singleended, adc_diff, adc_pseudo_diff
-	} adc_mux;
-	enum {
-		dac_bipolar_5, dac_bipolar_2_5, dac_unipolar_5
-	} dac_range[2];
-	const struct comedi_lrange *range_type_list[2];
-};
-
-static const struct comedi_lrange *dac_range_types[] = {
-	&range_bipolar5,
-	&range_bipolar2_5,
-	&range_unipolar5
-};
-
-static int dt2811_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DT2811_ADCSR);
-	if ((status & DT2811_ADBUSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int dt2811_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
-{
-	int chan = CR_CHAN(insn->chanspec);
-	int ret;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		outb(chan, dev->iobase + DT2811_ADGCR);
-
-		ret = comedi_timeout(dev, s, insn, dt2811_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[i] = inb(dev->iobase + DT2811_ADDATLO);
-		data[i] |= inb(dev->iobase + DT2811_ADDATHI) << 8;
-		data[i] &= 0xfff;
-	}
-
-	return i;
-}
-
-static int dt2811_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outb(val & 0xff, dev->iobase + DT2811_DADAT0LO + 2 * chan);
-		outb((val >> 8) & 0xff,
-		     dev->iobase + DT2811_DADAT0HI + 2 * chan);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int dt2811_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	data[1] = inb(dev->iobase + DT2811_DIO);
-
-	return insn->n;
-}
-
-static int dt2811_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + DT2811_DIO);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-/*
-  options[0]   Board base address
-  options[1]   IRQ
-  options[2]   Input configuration
-		 0 == single-ended
-		 1 == differential
-		 2 == pseudo-differential
-  options[3]   Analog input range configuration
-		 0 == bipolar 5  (-5V -- +5V)
-		 1 == bipolar 2.5V  (-2.5V -- +2.5V)
-		 2 == unipolar 5V  (0V -- +5V)
-  options[4]   Analog output 0 range configuration
-		 0 == bipolar 5  (-5V -- +5V)
-		 1 == bipolar 2.5V  (-2.5V -- +2.5V)
-		 2 == unipolar 5V  (0V -- +5V)
-  options[5]   Analog output 1 range configuration
-		 0 == bipolar 5  (-5V -- +5V)
-		 1 == bipolar 2.5V  (-2.5V -- +2.5V)
-		 2 == unipolar 5V  (0V -- +5V)
-*/
-static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	/* int i; */
-	const struct dt2811_board *board = dev->board_ptr;
-	struct dt2811_private *devpriv;
-	int ret;
-	struct comedi_subdevice *s;
-
-	ret = comedi_request_region(dev, it->options[0], 0x8);
-	if (ret)
-		return ret;
-
-#if 0
-	outb(0, dev->iobase + DT2811_ADCSR);
-	udelay(100);
-	i = inb(dev->iobase + DT2811_ADDATLO);
-	i = inb(dev->iobase + DT2811_ADDATHI);
-#endif
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	switch (it->options[2]) {
-	case 0:
-		devpriv->adc_mux = adc_singleended;
-		break;
-	case 1:
-		devpriv->adc_mux = adc_diff;
-		break;
-	case 2:
-		devpriv->adc_mux = adc_pseudo_diff;
-		break;
-	default:
-		devpriv->adc_mux = adc_singleended;
-		break;
-	}
-	switch (it->options[4]) {
-	case 0:
-		devpriv->dac_range[0] = dac_bipolar_5;
-		break;
-	case 1:
-		devpriv->dac_range[0] = dac_bipolar_2_5;
-		break;
-	case 2:
-		devpriv->dac_range[0] = dac_unipolar_5;
-		break;
-	default:
-		devpriv->dac_range[0] = dac_bipolar_5;
-		break;
-	}
-	switch (it->options[5]) {
-	case 0:
-		devpriv->dac_range[1] = dac_bipolar_5;
-		break;
-	case 1:
-		devpriv->dac_range[1] = dac_bipolar_2_5;
-		break;
-	case 2:
-		devpriv->dac_range[1] = dac_unipolar_5;
-		break;
-	default:
-		devpriv->dac_range[1] = dac_bipolar_5;
-		break;
-	}
-
-	s = &dev->subdevices[0];
-	/* initialize the ADC subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = devpriv->adc_mux == adc_diff ? 8 : 16;
-	s->insn_read = dt2811_ai_insn;
-	s->maxdata = 0xfff;
-	switch (it->options[3]) {
-	case 0:
-	default:
-		s->range_table = board->bip_5;
-		break;
-	case 1:
-		s->range_table = board->bip_2_5;
-		break;
-	case 2:
-		s->range_table = board->unip_5;
-		break;
-	}
-
-	s = &dev->subdevices[1];
-	/* ao subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 2;
-	s->maxdata = 0xfff;
-	s->range_table_list = devpriv->range_type_list;
-	devpriv->range_type_list[0] = dac_range_types[devpriv->dac_range[0]];
-	devpriv->range_type_list[1] = dac_range_types[devpriv->dac_range[1]];
-	s->insn_write = dt2811_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	/* di subdevice */
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 8;
-	s->insn_bits = dt2811_di_insn_bits;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-
-	s = &dev->subdevices[3];
-	/* do subdevice */
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 8;
-	s->insn_bits = dt2811_do_insn_bits;
-	s->maxdata = 1;
-	s->state = 0;
-	s->range_table = &range_digital;
-
-	return 0;
-}
-
-static const struct dt2811_board boardtypes[] = {
-	{
-		.name		= "dt2811-pgh",
-		.bip_5		= &range_dt2811_pgh_ai_5_bipolar,
-		.bip_2_5	= &range_dt2811_pgh_ai_2_5_bipolar,
-		.unip_5		= &range_dt2811_pgh_ai_5_unipolar,
-	}, {
-		.name		= "dt2811-pgl",
-		.bip_5		= &range_dt2811_pgl_ai_5_bipolar,
-		.bip_2_5	= &range_dt2811_pgl_ai_2_5_bipolar,
-		.unip_5		= &range_dt2811_pgl_ai_5_unipolar,
-	},
-};
-
-static struct comedi_driver dt2811_driver = {
-	.driver_name	= "dt2811",
-	.module		= THIS_MODULE,
-	.attach		= dt2811_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.offset		= sizeof(struct dt2811_board),
-};
-module_comedi_driver(dt2811_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
deleted file mode 100644
index 66705f9a0621..000000000000
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
-    comedi/drivers/dt2814.c
-    Hardware driver for Data Translation DT2814
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: dt2814
-Description: Data Translation DT2814
-Author: ds
-Status: complete
-Devices: [Data Translation] DT2814 (dt2814)
-
-Configuration options:
-  [0] - I/O port base address
-  [1] - IRQ
-
-This card has 16 analog inputs multiplexed onto a 12 bit ADC.  There
-is a minimally useful onboard clock.  The base frequency for the
-clock is selected by jumpers, and the clock divider can be selected
-via programmed I/O.  Unfortunately, the clock divider can only be
-a power of 10, from 1 to 10^7, of which only 3 or 4 are useful.  In
-addition, the clock does not seem to be very accurate.
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-#include <linux/delay.h>
-
-#define DT2814_CSR 0
-#define DT2814_DATA 1
-
-/*
- * flags
- */
-
-#define DT2814_FINISH 0x80
-#define DT2814_ERR 0x40
-#define DT2814_BUSY 0x20
-#define DT2814_ENB 0x10
-#define DT2814_CHANMASK 0x0f
-
-struct dt2814_private {
-	int ntrig;
-	int curadchan;
-};
-
-#define DT2814_TIMEOUT 10
-#define DT2814_MAX_SPEED 100000	/* Arbitrary 10 khz limit */
-
-static int dt2814_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DT2814_CSR);
-	if (status & DT2814_FINISH)
-		return 0;
-	return -EBUSY;
-}
-
-static int dt2814_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	int n, hi, lo;
-	int chan;
-	int ret;
-
-	for (n = 0; n < insn->n; n++) {
-		chan = CR_CHAN(insn->chanspec);
-
-		outb(chan, dev->iobase + DT2814_CSR);
-
-		ret = comedi_timeout(dev, s, insn, dt2814_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		hi = inb(dev->iobase + DT2814_DATA);
-		lo = inb(dev->iobase + DT2814_DATA);
-
-		data[n] = (hi << 4) | (lo >> 4);
-	}
-
-	return n;
-}
-
-static int dt2814_ns_to_timer(unsigned int *ns, unsigned int flags)
-{
-	int i;
-	unsigned int f;
-
-	/* XXX ignores flags */
-
-	f = 10000;		/* ns */
-	for (i = 0; i < 8; i++) {
-		if ((2 * (*ns)) < (f * 11))
-			break;
-		f *= 10;
-	}
-
-	*ns = f;
-
-	return i;
-}
-
-static int dt2814_ai_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 1000000000);
-	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-					    DT2814_MAX_SPEED);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 2);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	arg = cmd->scan_begin_arg;
-	dt2814_ns_to_timer(&arg, cmd->flags);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int dt2814_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct dt2814_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int chan;
-	int trigvar;
-
-	trigvar = dt2814_ns_to_timer(&cmd->scan_begin_arg, cmd->flags);
-
-	chan = CR_CHAN(cmd->chanlist[0]);
-
-	devpriv->ntrig = cmd->stop_arg;
-	outb(chan | DT2814_ENB | (trigvar << 5), dev->iobase + DT2814_CSR);
-
-	return 0;
-}
-
-static irqreturn_t dt2814_interrupt(int irq, void *d)
-{
-	int lo, hi;
-	struct comedi_device *dev = d;
-	struct dt2814_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	int data;
-
-	if (!dev->attached) {
-		dev_err(dev->class_dev, "spurious interrupt\n");
-		return IRQ_HANDLED;
-	}
-
-	hi = inb(dev->iobase + DT2814_DATA);
-	lo = inb(dev->iobase + DT2814_DATA);
-
-	data = (hi << 4) | (lo >> 4);
-
-	if (!(--devpriv->ntrig)) {
-		int i;
-
-		outb(0, dev->iobase + DT2814_CSR);
-		/* note: turning off timed mode triggers another
-		   sample. */
-
-		for (i = 0; i < DT2814_TIMEOUT; i++) {
-			if (inb(dev->iobase + DT2814_CSR) & DT2814_FINISH)
-				break;
-		}
-		inb(dev->iobase + DT2814_DATA);
-		inb(dev->iobase + DT2814_DATA);
-
-		s->async->events |= COMEDI_CB_EOA;
-	}
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct dt2814_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	ret = comedi_request_region(dev, it->options[0], 0x2);
-	if (ret)
-		return ret;
-
-	outb(0, dev->iobase + DT2814_CSR);
-	udelay(100);
-	if (inb(dev->iobase + DT2814_CSR) & DT2814_ERR) {
-		dev_err(dev->class_dev, "reset error (fatal)\n");
-		return -EIO;
-	}
-	i = inb(dev->iobase + DT2814_DATA);
-	i = inb(dev->iobase + DT2814_DATA);
-
-	if (it->options[1]) {
-		ret = request_irq(it->options[1], dt2814_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = 16;		/* XXX */
-	s->insn_read = dt2814_ai_insn_read;
-	s->maxdata = 0xfff;
-	s->range_table = &range_unknown;	/* XXX */
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->len_chanlist = 1;
-		s->do_cmd = dt2814_ai_cmd;
-		s->do_cmdtest = dt2814_ai_cmdtest;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver dt2814_driver = {
-	.driver_name	= "dt2814",
-	.module		= THIS_MODULE,
-	.attach		= dt2814_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(dt2814_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
deleted file mode 100644
index fb08569c1ac1..000000000000
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
-   comedi/drivers/dt2815.c
-   Hardware driver for Data Translation DT2815
-
-   COMEDI - Linux Control and Measurement Device Interface
-   Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se>
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
- */
-/*
-Driver: dt2815
-Description: Data Translation DT2815
-Author: ds
-Status: mostly complete, untested
-Devices: [Data Translation] DT2815 (dt2815)
-
-I'm not sure anyone has ever tested this board.  If you have information
-contrary, please update.
-
-Configuration options:
-  [0] - I/O port base base address
-  [1] - IRQ (unused)
-  [2] - Voltage unipolar/bipolar configuration
-	0 == unipolar 5V  (0V -- +5V)
-	1 == bipolar 5V  (-5V -- +5V)
-  [3] - Current offset configuration
-	0 == disabled  (0mA -- +32mAV)
-	1 == enabled  (+4mA -- +20mAV)
-  [4] - Firmware program configuration
-	0 == program 1 (see manual table 5-4)
-	1 == program 2 (see manual table 5-4)
-	2 == program 3 (see manual table 5-4)
-	3 == program 4 (see manual table 5-4)
-  [5] - Analog output 0 range configuration
-	0 == voltage
-	1 == current
-  [6] - Analog output 1 range configuration (same options)
-  [7] - Analog output 2 range configuration (same options)
-  [8] - Analog output 3 range configuration (same options)
-  [9] - Analog output 4 range configuration (same options)
-  [10] - Analog output 5 range configuration (same options)
-  [11] - Analog output 6 range configuration (same options)
-  [12] - Analog output 7 range configuration (same options)
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include <linux/delay.h>
-
-#define DT2815_DATA 0
-#define DT2815_STATUS 1
-
-struct dt2815_private {
-	const struct comedi_lrange *range_type_list[8];
-	unsigned int ao_readback[8];
-};
-
-static int dt2815_ao_status(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + DT2815_STATUS);
-	if (status == context)
-		return 0;
-	return -EBUSY;
-}
-
-static int dt2815_ao_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	struct dt2815_private *devpriv = dev->private;
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = devpriv->ao_readback[chan];
-
-	return i;
-}
-
-static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
-{
-	struct dt2815_private *devpriv = dev->private;
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
-	unsigned int lo, hi;
-	int ret;
-
-	for (i = 0; i < insn->n; i++) {
-		lo = ((data[i] & 0x0f) << 4) | (chan << 1) | 0x01;
-		hi = (data[i] & 0xff0) >> 4;
-
-		ret = comedi_timeout(dev, s, insn, dt2815_ao_status, 0x00);
-		if (ret)
-			return ret;
-
-		outb(lo, dev->iobase + DT2815_DATA);
-
-		ret = comedi_timeout(dev, s, insn, dt2815_ao_status, 0x10);
-		if (ret)
-			return ret;
-
-		devpriv->ao_readback[chan] = data[i];
-	}
-	return i;
-}
-
-/*
-  options[0]   Board base address
-  options[1]   IRQ (not applicable)
-  options[2]   Voltage unipolar/bipolar configuration
-		0 == unipolar 5V  (0V -- +5V)
-		1 == bipolar 5V  (-5V -- +5V)
-  options[3]   Current offset configuration
-		0 == disabled  (0mA -- +32mAV)
-		1 == enabled  (+4mA -- +20mAV)
-  options[4]   Firmware program configuration
-		0 == program 1 (see manual table 5-4)
-		1 == program 2 (see manual table 5-4)
-		2 == program 3 (see manual table 5-4)
-		3 == program 4 (see manual table 5-4)
-  options[5]   Analog output 0 range configuration
-		0 == voltage
-		1 == current
-  options[6]   Analog output 1 range configuration
-  ...
-  options[12]   Analog output 7 range configuration
-		0 == voltage
-		1 == current
- */
-
-static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct dt2815_private *devpriv;
-	struct comedi_subdevice *s;
-	int i;
-	const struct comedi_lrange *current_range_type, *voltage_range_type;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x2);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	s = &dev->subdevices[0];
-	/* ao subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->maxdata = 0xfff;
-	s->n_chan = 8;
-	s->insn_write = dt2815_ao_insn;
-	s->insn_read = dt2815_ao_insn_read;
-	s->range_table_list = devpriv->range_type_list;
-
-	current_range_type = (it->options[3])
-	    ? &range_4_20mA : &range_0_32mA;
-	voltage_range_type = (it->options[2])
-	    ? &range_bipolar5 : &range_unipolar5;
-	for (i = 0; i < 8; i++) {
-		devpriv->range_type_list[i] = (it->options[5 + i])
-		    ? current_range_type : voltage_range_type;
-	}
-
-	/* Init the 2815 */
-	outb(0x00, dev->iobase + DT2815_STATUS);
-	for (i = 0; i < 100; i++) {
-		/* This is incredibly slow (approx 20 ms) */
-		unsigned int status;
-
-		udelay(1000);
-		status = inb(dev->iobase + DT2815_STATUS);
-		if (status == 4) {
-			unsigned int program;
-
-			program = (it->options[4] & 0x3) << 3 | 0x7;
-			outb(program, dev->iobase + DT2815_DATA);
-			dev_dbg(dev->class_dev, "program: 0x%x (@t=%d)\n",
-				program, i);
-			break;
-		} else if (status != 0x00) {
-			dev_dbg(dev->class_dev,
-				"unexpected status 0x%x (@t=%d)\n",
-				status, i);
-			if (status & 0x60)
-				outb(0x00, dev->iobase + DT2815_STATUS);
-		}
-	}
-
-	return 0;
-}
-
-static struct comedi_driver dt2815_driver = {
-	.driver_name	= "dt2815",
-	.module		= THIS_MODULE,
-	.attach		= dt2815_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(dt2815_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt2817.c b/drivers/staging/comedi/drivers/dt2817.c
deleted file mode 100644
index 5131deebf66f..000000000000
--- a/drivers/staging/comedi/drivers/dt2817.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
-    comedi/drivers/dt2817.c
-    Hardware driver for Data Translation DT2817
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: dt2817
-Description: Data Translation DT2817
-Author: ds
-Status: complete
-Devices: [Data Translation] DT2817 (dt2817)
-
-A very simple digital I/O card.  Four banks of 8 lines, each bank
-is configurable for input or output.  One wonders why it takes a
-50 page manual to describe this thing.
-
-The driver (which, btw, is much less than 50 pages) has 1 subdevice
-with 32 channels, configurable in groups of 8.
-
-Configuration options:
-  [0] - I/O port base base address
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#define DT2817_CR 0
-#define DT2817_DATA 1
-
-static int dt2817_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int oe = 0;
-	unsigned int mask;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x000000ff;
-	else if (chan < 16)
-		mask = 0x0000ff00;
-	else if (chan < 24)
-		mask = 0x00ff0000;
-	else
-		mask = 0xff000000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	if (s->io_bits & 0x000000ff)
-		oe |= 0x1;
-	if (s->io_bits & 0x0000ff00)
-		oe |= 0x2;
-	if (s->io_bits & 0x00ff0000)
-		oe |= 0x4;
-	if (s->io_bits & 0xff000000)
-		oe |= 0x8;
-
-	outb(oe, dev->iobase + DT2817_CR);
-
-	return insn->n;
-}
-
-static int dt2817_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned long iobase = dev->iobase + DT2817_DATA;
-	unsigned int mask;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0x000000ff)
-			outb(s->state & 0xff, iobase + 0);
-		if (mask & 0x0000ff00)
-			outb((s->state >> 8) & 0xff, iobase + 1);
-		if (mask & 0x00ff0000)
-			outb((s->state >> 16) & 0xff, iobase + 2);
-		if (mask & 0xff000000)
-			outb((s->state >> 24) & 0xff, iobase + 3);
-	}
-
-	val = inb(iobase + 0);
-	val |= (inb(iobase + 1) << 8);
-	val |= (inb(iobase + 2) << 16);
-	val |= (inb(iobase + 3) << 24);
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int dt2817_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	int ret;
-	struct comedi_subdevice *s;
-
-	ret = comedi_request_region(dev, it->options[0], 0x5);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-
-	s->n_chan = 32;
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->range_table = &range_digital;
-	s->maxdata = 1;
-	s->insn_bits = dt2817_dio_insn_bits;
-	s->insn_config = dt2817_dio_insn_config;
-
-	s->state = 0;
-	outb(0, dev->iobase + DT2817_CR);
-
-	return 0;
-}
-
-static struct comedi_driver dt2817_driver = {
-	.driver_name	= "dt2817",
-	.module		= THIS_MODULE,
-	.attach		= dt2817_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(dt2817_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
deleted file mode 100644
index 5a536a00066f..000000000000
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ /dev/null
@@ -1,1211 +0,0 @@
-/*
- * dt282x.c
- * Comedi driver for Data Translation DT2821 series
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: dt282x
- * Description: Data Translation DT2821 series (including DT-EZ)
- * Author: ds
- * Devices: [Data Translation] DT2821 (dt2821), DT2821-F-16SE (dt2821-f),
- *   DT2821-F-8DI (dt2821-f), DT2821-G-16SE (dt2821-g),
- *   DT2821-G-8DI (dt2821-g), DT2823 (dt2823), DT2824-PGH (dt2824-pgh),
- *   DT2824-PGL (dt2824-pgl), DT2825 (dt2825), DT2827 (dt2827),
- *   DT2828 (dt2828), DT2928 (dt2829), DT21-EZ (dt21-ez), DT23-EZ (dt23-ez),
- *   DT24-EZ (dt24-ez), DT24-EZ-PGL (dt24-ez-pgl)
- * Status: complete
- * Updated: Wed, 22 Aug 2001 17:11:34 -0700
- *
- * Configuration options:
- *   [0] - I/O port base address
- *   [1] - IRQ (optional, required for async command support)
- *   [2] - DMA 1 (optional, required for async command support)
- *   [3] - DMA 2 (optional, required for async command support)
- *   [4] - AI jumpered for 0=single ended, 1=differential
- *   [5] - AI jumpered for 0=straight binary, 1=2's complement
- *   [6] - AO 0 data format (deprecated, see below)
- *   [7] - AO 1 data format (deprecated, see below)
- *   [8] - AI jumpered for 0=[-10,10]V, 1=[0,10], 2=[-5,5], 3=[0,5]
- *   [9] - AO channel 0 range (deprecated, see below)
- *   [10]- AO channel 1 range (deprecated, see below)
- *
- * Notes:
- *   - AO commands might be broken.
- *   - If you try to run a command on both the AI and AO subdevices
- *     simultaneously, bad things will happen.  The driver needs to
- *     be fixed to check for this situation and return an error.
- *   - AO range is not programmable. The AO subdevice has a range_table
- *     containing all the possible analog output ranges. Use the range
- *     that matches your board configuration to convert between data
- *     values and physical units. The format of the data written to the
- *     board is handled automatically based on the unipolar/bipolar
- *     range that is selected.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/gfp.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-
-/*
- * Register map
- */
-#define DT2821_ADCSR_REG		0x00
-#define DT2821_ADCSR_ADERR		(1 << 15)
-#define DT2821_ADCSR_ADCLK		(1 << 9)
-#define DT2821_ADCSR_MUXBUSY		(1 << 8)
-#define DT2821_ADCSR_ADDONE		(1 << 7)
-#define DT2821_ADCSR_IADDONE		(1 << 6)
-#define DT2821_ADCSR_GS(x)		(((x) & 0x3) << 4)
-#define DT2821_ADCSR_CHAN(x)		(((x) & 0xf) << 0)
-#define DT2821_CHANCSR_REG		0x02
-#define DT2821_CHANCSR_LLE		(1 << 15)
-#define DT2821_CHANCSR_PRESLA(x)	(((x) & 0xf) >> 8)
-#define DT2821_CHANCSR_NUMB(x)		((((x) - 1) & 0xf) << 0)
-#define DT2821_ADDAT_REG		0x04
-#define DT2821_DACSR_REG		0x06
-#define DT2821_DACSR_DAERR		(1 << 15)
-#define DT2821_DACSR_YSEL(x)		((x) << 9)
-#define DT2821_DACSR_SSEL		(1 << 8)
-#define DT2821_DACSR_DACRDY		(1 << 7)
-#define DT2821_DACSR_IDARDY		(1 << 6)
-#define DT2821_DACSR_DACLK		(1 << 5)
-#define DT2821_DACSR_HBOE		(1 << 1)
-#define DT2821_DACSR_LBOE		(1 << 0)
-#define DT2821_DADAT_REG		0x08
-#define DT2821_DIODAT_REG		0x0a
-#define DT2821_SUPCSR_REG		0x0c
-#define DT2821_SUPCSR_DMAD		(1 << 15)
-#define DT2821_SUPCSR_ERRINTEN		(1 << 14)
-#define DT2821_SUPCSR_CLRDMADNE		(1 << 13)
-#define DT2821_SUPCSR_DDMA		(1 << 12)
-#define DT2821_SUPCSR_DS_PIO		(0 << 10)
-#define DT2821_SUPCSR_DS_AD_CLK		(1 << 10)
-#define DT2821_SUPCSR_DS_DA_CLK		(2 << 10)
-#define DT2821_SUPCSR_DS_AD_TRIG	(3 << 10)
-#define DT2821_SUPCSR_BUFFB		(1 << 9)
-#define DT2821_SUPCSR_SCDN		(1 << 8)
-#define DT2821_SUPCSR_DACON		(1 << 7)
-#define DT2821_SUPCSR_ADCINIT		(1 << 6)
-#define DT2821_SUPCSR_DACINIT		(1 << 5)
-#define DT2821_SUPCSR_PRLD		(1 << 4)
-#define DT2821_SUPCSR_STRIG		(1 << 3)
-#define DT2821_SUPCSR_XTRIG		(1 << 2)
-#define DT2821_SUPCSR_XCLK		(1 << 1)
-#define DT2821_SUPCSR_BDINIT		(1 << 0)
-#define DT2821_TMRCTR_REG		0x0e
-
-static const struct comedi_lrange range_dt282x_ai_lo_bipolar = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_dt282x_ai_lo_unipolar = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_dt282x_ai_5_bipolar = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_dt282x_ai_5_unipolar = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		UNI_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_dt282x_ai_hi_bipolar = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.02)
-	}
-};
-
-static const struct comedi_lrange range_dt282x_ai_hi_unipolar = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.02)
-	}
-};
-
-/*
- * The Analog Output range is set per-channel using jumpers on the board.
- * All of these ranges may not be available on some DT2821 series boards.
- * The default jumper setting has both channels set for +/-10V output.
- */
-static const struct comedi_lrange dt282x_ao_range = {
-	5, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-	}
-};
-
-struct dt282x_board {
-	const char *name;
-	unsigned int ai_maxdata;
-	int adchan_se;
-	int adchan_di;
-	int ai_speed;
-	int ispgl;
-	int dachan;
-	unsigned int ao_maxdata;
-};
-
-static const struct dt282x_board boardtypes[] = {
-	{
-		.name		= "dt2821",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 20000,
-		.dachan		= 2,
-		.ao_maxdata	= 0x0fff,
-	}, {
-		.name		= "dt2821-f",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 6500,
-		.dachan		= 2,
-		.ao_maxdata	= 0x0fff,
-	}, {
-		.name		= "dt2821-g",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 4000,
-		.dachan		= 2,
-		.ao_maxdata	= 0x0fff,
-	}, {
-		.name		= "dt2823",
-		.ai_maxdata	= 0xffff,
-		.adchan_di	= 4,
-		.ai_speed	= 10000,
-		.dachan		= 2,
-		.ao_maxdata	= 0xffff,
-	}, {
-		.name		= "dt2824-pgh",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 20000,
-	}, {
-		.name		= "dt2824-pgl",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 20000,
-		.ispgl		= 1,
-	}, {
-		.name		= "dt2825",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 20000,
-		.ispgl		= 1,
-		.dachan		= 2,
-		.ao_maxdata	= 0x0fff,
-	}, {
-		.name		= "dt2827",
-		.ai_maxdata	= 0xffff,
-		.adchan_di	= 4,
-		.ai_speed	= 10000,
-		.dachan		= 2,
-		.ao_maxdata	= 0x0fff,
-	}, {
-		.name		= "dt2828",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 4,
-		.ai_speed	= 10000,
-		.dachan		= 2,
-		.ao_maxdata	= 0x0fff,
-	}, {
-		.name		= "dt2829",
-		.ai_maxdata	= 0xffff,
-		.adchan_se	= 8,
-		.ai_speed	= 33250,
-		.dachan		= 2,
-		.ao_maxdata	= 0xffff,
-	}, {
-		.name		= "dt21-ez",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 10000,
-		.dachan		= 2,
-		.ao_maxdata	= 0x0fff,
-	}, {
-		.name		= "dt23-ez",
-		.ai_maxdata	= 0xffff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 10000,
-	}, {
-		.name		= "dt24-ez",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 10000,
-	}, {
-		.name		= "dt24-ez-pgl",
-		.ai_maxdata	= 0x0fff,
-		.adchan_se	= 16,
-		.adchan_di	= 8,
-		.ai_speed	= 10000,
-		.ispgl		= 1,
-	},
-};
-
-struct dt282x_private {
-	struct comedi_isadma *dma;
-	unsigned int ad_2scomp:1;
-	unsigned int divisor;
-	int dacsr;	/* software copies of registers */
-	int adcsr;
-	int supcsr;
-	int ntrig;
-	int nread;
-	int dma_dir;
-};
-
-static int dt282x_prep_ai_dma(struct comedi_device *dev, int dma_index, int n)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma_index];
-
-	if (!devpriv->ntrig)
-		return 0;
-
-	if (n == 0)
-		n = desc->maxsize;
-	if (n > devpriv->ntrig * 2)
-		n = devpriv->ntrig * 2;
-	devpriv->ntrig -= n / 2;
-
-	desc->size = n;
-	comedi_isadma_set_mode(desc, devpriv->dma_dir);
-
-	comedi_isadma_program(desc);
-
-	return n;
-}
-
-static int dt282x_prep_ao_dma(struct comedi_device *dev, int dma_index, int n)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma_index];
-
-	desc->size = n;
-	comedi_isadma_set_mode(desc, devpriv->dma_dir);
-
-	comedi_isadma_program(desc);
-
-	return n;
-}
-
-static void dt282x_disable_dma(struct comedi_device *dev)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc;
-	int i;
-
-	for (i = 0; i < 2; i++) {
-		desc = &dma->desc[i];
-		comedi_isadma_disable(desc->chan);
-	}
-}
-
-static unsigned int dt282x_ns_to_timer(unsigned int *ns, unsigned int flags)
-{
-	unsigned int prescale, base, divider;
-
-	for (prescale = 0; prescale < 16; prescale++) {
-		if (prescale == 1)
-			continue;
-		base = 250 * (1 << prescale);
-		switch (flags & CMDF_ROUND_MASK) {
-		case CMDF_ROUND_NEAREST:
-		default:
-			divider = (*ns + base / 2) / base;
-			break;
-		case CMDF_ROUND_DOWN:
-			divider = (*ns) / base;
-			break;
-		case CMDF_ROUND_UP:
-			divider = (*ns + base - 1) / base;
-			break;
-		}
-		if (divider < 256) {
-			*ns = divider * base;
-			return (prescale << 8) | (255 - divider);
-		}
-	}
-	base = 250 * (1 << 15);
-	divider = 255;
-	*ns = divider * base;
-	return (15 << 8) | (255 - divider);
-}
-
-static void dt282x_munge(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 unsigned short *buf,
-			 unsigned int nbytes)
-{
-	struct dt282x_private *devpriv = dev->private;
-	unsigned int val;
-	int i;
-
-	if (nbytes % 2)
-		dev_err(dev->class_dev,
-			"bug! odd number of bytes from dma xfer\n");
-
-	for (i = 0; i < nbytes / 2; i++) {
-		val = buf[i];
-		val &= s->maxdata;
-		if (devpriv->ad_2scomp)
-			val = comedi_offset_munge(s, val);
-
-		buf[i] = val;
-	}
-}
-
-static unsigned int dt282x_ao_setup_dma(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					int cur_dma)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[cur_dma];
-	unsigned int nsamples = comedi_bytes_to_samples(s, desc->maxsize);
-	unsigned int nbytes;
-
-	nbytes = comedi_buf_read_samples(s, desc->virt_addr, nsamples);
-	if (nbytes)
-		dt282x_prep_ao_dma(dev, cur_dma, nbytes);
-	else
-		dev_err(dev->class_dev, "AO underrun\n");
-
-	return nbytes;
-}
-
-static void dt282x_ao_dma_interrupt(struct comedi_device *dev,
-				    struct comedi_subdevice *s)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-
-	outw(devpriv->supcsr | DT2821_SUPCSR_CLRDMADNE,
-	     dev->iobase + DT2821_SUPCSR_REG);
-
-	comedi_isadma_disable(desc->chan);
-
-	if (!dt282x_ao_setup_dma(dev, s, dma->cur_dma))
-		s->async->events |= COMEDI_CB_OVERFLOW;
-
-	dma->cur_dma = 1 - dma->cur_dma;
-}
-
-static void dt282x_ai_dma_interrupt(struct comedi_device *dev,
-				    struct comedi_subdevice *s)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned int nsamples = comedi_bytes_to_samples(s, desc->size);
-	int ret;
-
-	outw(devpriv->supcsr | DT2821_SUPCSR_CLRDMADNE,
-	     dev->iobase + DT2821_SUPCSR_REG);
-
-	comedi_isadma_disable(desc->chan);
-
-	dt282x_munge(dev, s, desc->virt_addr, desc->size);
-	ret = comedi_buf_write_samples(s, desc->virt_addr, nsamples);
-	if (ret != desc->size)
-		return;
-
-	devpriv->nread -= nsamples;
-	if (devpriv->nread < 0) {
-		dev_info(dev->class_dev, "nread off by one\n");
-		devpriv->nread = 0;
-	}
-	if (!devpriv->nread) {
-		s->async->events |= COMEDI_CB_EOA;
-		return;
-	}
-#if 0
-	/* clear the dual dma flag, making this the last dma segment */
-	/* XXX probably wrong */
-	if (!devpriv->ntrig) {
-		devpriv->supcsr &= ~DT2821_SUPCSR_DDMA;
-		outw(devpriv->supcsr, dev->iobase + DT2821_SUPCSR_REG);
-	}
-#endif
-	/* restart the channel */
-	dt282x_prep_ai_dma(dev, dma->cur_dma, 0);
-
-	dma->cur_dma = 1 - dma->cur_dma;
-}
-
-static irqreturn_t dt282x_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_subdevice *s_ao = dev->write_subdev;
-	unsigned int supcsr, adcsr, dacsr;
-	int handled = 0;
-
-	if (!dev->attached) {
-		dev_err(dev->class_dev, "spurious interrupt\n");
-		return IRQ_HANDLED;
-	}
-
-	adcsr = inw(dev->iobase + DT2821_ADCSR_REG);
-	dacsr = inw(dev->iobase + DT2821_DACSR_REG);
-	supcsr = inw(dev->iobase + DT2821_SUPCSR_REG);
-	if (supcsr & DT2821_SUPCSR_DMAD) {
-		if (devpriv->dma_dir == COMEDI_ISADMA_READ)
-			dt282x_ai_dma_interrupt(dev, s);
-		else
-			dt282x_ao_dma_interrupt(dev, s_ao);
-		handled = 1;
-	}
-	if (adcsr & DT2821_ADCSR_ADERR) {
-		if (devpriv->nread != 0) {
-			dev_err(dev->class_dev, "A/D error\n");
-			s->async->events |= COMEDI_CB_ERROR;
-		}
-		handled = 1;
-	}
-	if (dacsr & DT2821_DACSR_DAERR) {
-		dev_err(dev->class_dev, "D/A error\n");
-		s_ao->async->events |= COMEDI_CB_ERROR;
-		handled = 1;
-	}
-#if 0
-	if (adcsr & DT2821_ADCSR_ADDONE) {
-		unsigned short data;
-
-		data = inw(dev->iobase + DT2821_ADDAT_REG);
-		data &= s->maxdata;
-		if (devpriv->ad_2scomp)
-			data = comedi_offset_munge(s, data);
-
-		comedi_buf_write_samples(s, &data, 1);
-
-		devpriv->nread--;
-		if (!devpriv->nread) {
-			s->async->events |= COMEDI_CB_EOA;
-		} else {
-			if (supcsr & DT2821_SUPCSR_SCDN)
-				outw(devpriv->supcsr | DT2821_SUPCSR_STRIG,
-				     dev->iobase + DT2821_SUPCSR_REG);
-		}
-		handled = 1;
-	}
-#endif
-	comedi_handle_events(dev, s);
-	comedi_handle_events(dev, s_ao);
-
-	return IRQ_RETVAL(handled);
-}
-
-static void dt282x_load_changain(struct comedi_device *dev, int n,
-				 unsigned int *chanlist)
-{
-	struct dt282x_private *devpriv = dev->private;
-	int i;
-
-	outw(DT2821_CHANCSR_LLE | DT2821_CHANCSR_NUMB(n),
-	     dev->iobase + DT2821_CHANCSR_REG);
-	for (i = 0; i < n; i++) {
-		unsigned int chan = CR_CHAN(chanlist[i]);
-		unsigned int range = CR_RANGE(chanlist[i]);
-
-		outw(devpriv->adcsr |
-		     DT2821_ADCSR_GS(range) |
-		     DT2821_ADCSR_CHAN(chan),
-		     dev->iobase + DT2821_ADCSR_REG);
-	}
-	outw(DT2821_CHANCSR_NUMB(n), dev->iobase + DT2821_CHANCSR_REG);
-}
-
-static int dt282x_ai_timeout(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + DT2821_ADCSR_REG);
-	switch (context) {
-	case DT2821_ADCSR_MUXBUSY:
-		if ((status & DT2821_ADCSR_MUXBUSY) == 0)
-			return 0;
-		break;
-	case DT2821_ADCSR_ADDONE:
-		if (status & DT2821_ADCSR_ADDONE)
-			return 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return -EBUSY;
-}
-
-/*
- *    Performs a single A/D conversion.
- *      - Put channel/gain into channel-gain list
- *      - preload multiplexer
- *      - trigger conversion and wait for it to finish
- */
-static int dt282x_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct dt282x_private *devpriv = dev->private;
-	unsigned int val;
-	int ret;
-	int i;
-
-	/* XXX should we really be enabling the ad clock here? */
-	devpriv->adcsr = DT2821_ADCSR_ADCLK;
-	outw(devpriv->adcsr, dev->iobase + DT2821_ADCSR_REG);
-
-	dt282x_load_changain(dev, 1, &insn->chanspec);
-
-	outw(devpriv->supcsr | DT2821_SUPCSR_PRLD,
-	     dev->iobase + DT2821_SUPCSR_REG);
-	ret = comedi_timeout(dev, s, insn,
-			     dt282x_ai_timeout, DT2821_ADCSR_MUXBUSY);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < insn->n; i++) {
-		outw(devpriv->supcsr | DT2821_SUPCSR_STRIG,
-		     dev->iobase + DT2821_SUPCSR_REG);
-
-		ret = comedi_timeout(dev, s, insn,
-				     dt282x_ai_timeout, DT2821_ADCSR_ADDONE);
-		if (ret)
-			return ret;
-
-		val = inw(dev->iobase + DT2821_ADDAT_REG);
-		val &= s->maxdata;
-		if (devpriv->ad_2scomp)
-			val = comedi_offset_munge(s, val);
-
-		data[i] = val;
-	}
-
-	return i;
-}
-
-static int dt282x_ai_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_cmd *cmd)
-{
-	const struct dt282x_board *board = dev->board_ptr;
-	struct dt282x_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_FOLLOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 4000);
-
-#define SLOWEST_TIMER	(250*(1<<15)*255)
-	err |= comedi_check_trigger_arg_max(&cmd->convert_arg, SLOWEST_TIMER);
-	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, board->ai_speed);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_EXT | TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	arg = cmd->convert_arg;
-	devpriv->divisor = dt282x_ns_to_timer(&arg, cmd->flags);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	dt282x_disable_dma(dev);
-
-	outw(devpriv->divisor, dev->iobase + DT2821_TMRCTR_REG);
-
-	devpriv->supcsr = DT2821_SUPCSR_ERRINTEN;
-	if (cmd->scan_begin_src == TRIG_FOLLOW)
-		devpriv->supcsr = DT2821_SUPCSR_DS_AD_CLK;
-	else
-		devpriv->supcsr = DT2821_SUPCSR_DS_AD_TRIG;
-	outw(devpriv->supcsr |
-	     DT2821_SUPCSR_CLRDMADNE |
-	     DT2821_SUPCSR_BUFFB |
-	     DT2821_SUPCSR_ADCINIT,
-	     dev->iobase + DT2821_SUPCSR_REG);
-
-	devpriv->ntrig = cmd->stop_arg * cmd->scan_end_arg;
-	devpriv->nread = devpriv->ntrig;
-
-	devpriv->dma_dir = COMEDI_ISADMA_READ;
-	dma->cur_dma = 0;
-	dt282x_prep_ai_dma(dev, 0, 0);
-	if (devpriv->ntrig) {
-		dt282x_prep_ai_dma(dev, 1, 0);
-		devpriv->supcsr |= DT2821_SUPCSR_DDMA;
-		outw(devpriv->supcsr, dev->iobase + DT2821_SUPCSR_REG);
-	}
-
-	devpriv->adcsr = 0;
-
-	dt282x_load_changain(dev, cmd->chanlist_len, cmd->chanlist);
-
-	devpriv->adcsr = DT2821_ADCSR_ADCLK | DT2821_ADCSR_IADDONE;
-	outw(devpriv->adcsr, dev->iobase + DT2821_ADCSR_REG);
-
-	outw(devpriv->supcsr | DT2821_SUPCSR_PRLD,
-	     dev->iobase + DT2821_SUPCSR_REG);
-	ret = comedi_timeout(dev, s, NULL,
-			     dt282x_ai_timeout, DT2821_ADCSR_MUXBUSY);
-	if (ret)
-		return ret;
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW) {
-		outw(devpriv->supcsr | DT2821_SUPCSR_STRIG,
-		     dev->iobase + DT2821_SUPCSR_REG);
-	} else {
-		devpriv->supcsr |= DT2821_SUPCSR_XTRIG;
-		outw(devpriv->supcsr, dev->iobase + DT2821_SUPCSR_REG);
-	}
-
-	return 0;
-}
-
-static int dt282x_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct dt282x_private *devpriv = dev->private;
-
-	dt282x_disable_dma(dev);
-
-	devpriv->adcsr = 0;
-	outw(devpriv->adcsr, dev->iobase + DT2821_ADCSR_REG);
-
-	devpriv->supcsr = 0;
-	outw(devpriv->supcsr | DT2821_SUPCSR_ADCINIT,
-	     dev->iobase + DT2821_SUPCSR_REG);
-
-	return 0;
-}
-
-static int dt282x_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct dt282x_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int i;
-
-	devpriv->dacsr |= DT2821_DACSR_SSEL | DT2821_DACSR_YSEL(chan);
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		if (comedi_range_is_bipolar(s, range))
-			val = comedi_offset_munge(s, val);
-
-		outw(devpriv->dacsr, dev->iobase + DT2821_DACSR_REG);
-
-		outw(val, dev->iobase + DT2821_DADAT_REG);
-
-		outw(devpriv->supcsr | DT2821_SUPCSR_DACON,
-		     dev->iobase + DT2821_SUPCSR_REG);
-	}
-
-	return insn->n;
-}
-
-static int dt282x_ao_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_cmd *cmd)
-{
-	struct dt282x_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, 5000);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_EXT | TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	arg = cmd->scan_begin_arg;
-	devpriv->divisor = dt282x_ns_to_timer(&arg, cmd->flags);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int dt282x_ao_inttrig(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     unsigned int trig_num)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_src)
-		return -EINVAL;
-
-	if (!dt282x_ao_setup_dma(dev, s, 0))
-		return -EPIPE;
-
-	if (!dt282x_ao_setup_dma(dev, s, 1))
-		return -EPIPE;
-
-	outw(devpriv->supcsr | DT2821_SUPCSR_STRIG,
-	     dev->iobase + DT2821_SUPCSR_REG);
-	s->async->inttrig = NULL;
-
-	return 1;
-}
-
-static int dt282x_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct dt282x_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	dt282x_disable_dma(dev);
-
-	devpriv->supcsr = DT2821_SUPCSR_ERRINTEN |
-			  DT2821_SUPCSR_DS_DA_CLK |
-			  DT2821_SUPCSR_DDMA;
-	outw(devpriv->supcsr |
-	     DT2821_SUPCSR_CLRDMADNE |
-	     DT2821_SUPCSR_BUFFB |
-	     DT2821_SUPCSR_DACINIT,
-	     dev->iobase + DT2821_SUPCSR_REG);
-
-	devpriv->ntrig = cmd->stop_arg * cmd->chanlist_len;
-	devpriv->nread = devpriv->ntrig;
-
-	devpriv->dma_dir = COMEDI_ISADMA_WRITE;
-	dma->cur_dma = 0;
-
-	outw(devpriv->divisor, dev->iobase + DT2821_TMRCTR_REG);
-
-	/* clear all bits but the DIO direction bits */
-	devpriv->dacsr &= (DT2821_DACSR_LBOE | DT2821_DACSR_HBOE);
-
-	devpriv->dacsr |= (DT2821_DACSR_SSEL |
-			   DT2821_DACSR_DACLK |
-			   DT2821_DACSR_IDARDY);
-	outw(devpriv->dacsr, dev->iobase + DT2821_DACSR_REG);
-
-	s->async->inttrig = dt282x_ao_inttrig;
-
-	return 0;
-}
-
-static int dt282x_ao_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct dt282x_private *devpriv = dev->private;
-
-	dt282x_disable_dma(dev);
-
-	/* clear all bits but the DIO direction bits */
-	devpriv->dacsr &= (DT2821_DACSR_LBOE | DT2821_DACSR_HBOE);
-
-	outw(devpriv->dacsr, dev->iobase + DT2821_DACSR_REG);
-
-	devpriv->supcsr = 0;
-	outw(devpriv->supcsr | DT2821_SUPCSR_DACINIT,
-	     dev->iobase + DT2821_SUPCSR_REG);
-
-	return 0;
-}
-
-static int dt282x_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + DT2821_DIODAT_REG);
-
-	data[1] = inw(dev->iobase + DT2821_DIODAT_REG);
-
-	return insn->n;
-}
-
-static int dt282x_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct dt282x_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x00ff;
-	else
-		mask = 0xff00;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	devpriv->dacsr &= ~(DT2821_DACSR_LBOE | DT2821_DACSR_HBOE);
-	if (s->io_bits & 0x00ff)
-		devpriv->dacsr |= DT2821_DACSR_LBOE;
-	if (s->io_bits & 0xff00)
-		devpriv->dacsr |= DT2821_DACSR_HBOE;
-
-	outw(devpriv->dacsr, dev->iobase + DT2821_DACSR_REG);
-
-	return insn->n;
-}
-
-static const struct comedi_lrange *const ai_range_table[] = {
-	&range_dt282x_ai_lo_bipolar,
-	&range_dt282x_ai_lo_unipolar,
-	&range_dt282x_ai_5_bipolar,
-	&range_dt282x_ai_5_unipolar
-};
-
-static const struct comedi_lrange *const ai_range_pgl_table[] = {
-	&range_dt282x_ai_hi_bipolar,
-	&range_dt282x_ai_hi_unipolar
-};
-
-static const struct comedi_lrange *opt_ai_range_lkup(int ispgl, int x)
-{
-	if (ispgl) {
-		if (x < 0 || x >= 2)
-			x = 0;
-		return ai_range_pgl_table[x];
-	}
-
-	if (x < 0 || x >= 4)
-		x = 0;
-	return ai_range_table[x];
-}
-
-static void dt282x_alloc_dma(struct comedi_device *dev,
-			     struct comedi_devconfig *it)
-{
-	struct dt282x_private *devpriv = dev->private;
-	unsigned int irq_num = it->options[1];
-	unsigned int dma_chan[2];
-
-	if (it->options[2] < it->options[3]) {
-		dma_chan[0] = it->options[2];
-		dma_chan[1] = it->options[3];
-	} else {
-		dma_chan[0] = it->options[3];
-		dma_chan[1] = it->options[2];
-	}
-
-	if (!irq_num || dma_chan[0] == dma_chan[1] ||
-	    dma_chan[0] < 5 || dma_chan[0] > 7 ||
-	    dma_chan[1] < 5 || dma_chan[1] > 7)
-		return;
-
-	if (request_irq(irq_num, dt282x_interrupt, 0, dev->board_name, dev))
-		return;
-
-	/* DMA uses two 4K buffers with separate DMA channels */
-	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan[0], dma_chan[1],
-					   PAGE_SIZE, 0);
-	if (!devpriv->dma)
-		free_irq(irq_num, dev);
-}
-
-static void dt282x_free_dma(struct comedi_device *dev)
-{
-	struct dt282x_private *devpriv = dev->private;
-
-	if (devpriv)
-		comedi_isadma_free(devpriv->dma);
-}
-
-static int dt282x_initialize(struct comedi_device *dev)
-{
-	/* Initialize board */
-	outw(DT2821_SUPCSR_BDINIT, dev->iobase + DT2821_SUPCSR_REG);
-	inw(dev->iobase + DT2821_ADCSR_REG);
-
-	/*
-	 * At power up, some registers are in a well-known state.
-	 * Check them to see if a DT2821 series board is present.
-	 */
-	if (((inw(dev->iobase + DT2821_ADCSR_REG) & 0xfff0) != 0x7c00) ||
-	    ((inw(dev->iobase + DT2821_CHANCSR_REG) & 0xf0f0) != 0x70f0) ||
-	    ((inw(dev->iobase + DT2821_DACSR_REG) & 0x7c93) != 0x7c90) ||
-	    ((inw(dev->iobase + DT2821_SUPCSR_REG) & 0xf8ff) != 0x0000) ||
-	    ((inw(dev->iobase + DT2821_TMRCTR_REG) & 0xff00) != 0xf000)) {
-		dev_err(dev->class_dev, "board not found\n");
-		return -EIO;
-	}
-	return 0;
-}
-
-/*
-   options:
-   0	i/o base
-   1	irq
-   2	dma1
-   3	dma2
-   4	0=single ended, 1=differential
-   5	ai 0=straight binary, 1=2's comp
-   6	ao0 0=straight binary, 1=2's comp
-   7	ao1 0=straight binary, 1=2's comp
-   8	ai 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V
-   9	ao0 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V, 4=±2.5 V
-   10	ao1 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V, 4=±2.5 V
- */
-static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct dt282x_board *board = dev->board_ptr;
-	struct dt282x_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	ret = dt282x_initialize(dev);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	/* an IRQ and 2 DMA channels are required for async command support */
-	dt282x_alloc_dma(dev, it);
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE;
-	if ((it->options[4] && board->adchan_di) || board->adchan_se == 0) {
-		s->subdev_flags	|= SDF_DIFF;
-		s->n_chan	= board->adchan_di;
-	} else {
-		s->subdev_flags	|= SDF_COMMON;
-		s->n_chan	= board->adchan_se;
-	}
-	s->maxdata	= board->ai_maxdata;
-
-	s->range_table = opt_ai_range_lkup(board->ispgl, it->options[8]);
-	devpriv->ad_2scomp = it->options[5] ? 1 : 0;
-
-	s->insn_read	= dt282x_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= s->n_chan;
-		s->do_cmdtest	= dt282x_ai_cmdtest;
-		s->do_cmd	= dt282x_ai_cmd;
-		s->cancel	= dt282x_ai_cancel;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	if (board->dachan) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= board->dachan;
-		s->maxdata	= board->ao_maxdata;
-		/* ranges are per-channel, set by jumpers on the board */
-		s->range_table	= &dt282x_ao_range;
-		s->insn_write	= dt282x_ao_insn_write;
-		if (dev->irq) {
-			dev->write_subdev = s;
-			s->subdev_flags	|= SDF_CMD_WRITE;
-			s->len_chanlist	= s->n_chan;
-			s->do_cmdtest	= dt282x_ao_cmdtest;
-			s->do_cmd	= dt282x_ao_cmd;
-			s->cancel	= dt282x_ao_cancel;
-		}
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= dt282x_dio_insn_bits;
-	s->insn_config	= dt282x_dio_insn_config;
-
-	return 0;
-}
-
-static void dt282x_detach(struct comedi_device *dev)
-{
-	dt282x_free_dma(dev);
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver dt282x_driver = {
-	.driver_name	= "dt282x",
-	.module		= THIS_MODULE,
-	.attach		= dt282x_attach,
-	.detach		= dt282x_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.offset		= sizeof(struct dt282x_board),
-};
-module_comedi_driver(dt282x_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Data Translation DT2821 series");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
deleted file mode 100644
index 8c4f284d1919..000000000000
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ /dev/null
@@ -1,769 +0,0 @@
-/*
-    comedi/drivers/dt3000.c
-    Data Translation DT3000 series driver
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1999 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: dt3000
-Description: Data Translation DT3000 series
-Author: ds
-Devices: [Data Translation] DT3001 (dt3000), DT3001-PGL, DT3002, DT3003,
-  DT3003-PGL, DT3004, DT3005, DT3004-200
-Updated: Mon, 14 Apr 2008 15:41:24 +0100
-Status: works
-
-Configuration Options: not applicable, uses PCI auto config
-
-There is code to support AI commands, but it may not work.
-
-AO commands are not supported.
-*/
-
-/*
-   The DT3000 series is Data Translation's attempt to make a PCI
-   data acquisition board.  The design of this series is very nice,
-   since each board has an on-board DSP (Texas Instruments TMS320C52).
-   However, a few details are a little annoying.  The boards lack
-   bus-mastering DMA, which eliminates them from serious work.
-   They also are not capable of autocalibration, which is a common
-   feature in modern hardware.  The default firmware is pretty bad,
-   making it nearly impossible to write an RT compatible driver.
-   It would make an interesting project to write a decent firmware
-   for these boards.
-
-   Data Translation originally wanted an NDA for the documentation
-   for the 3k series.  However, if you ask nicely, they might send
-   you the docs without one, also.
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-static const struct comedi_lrange range_dt3000_ai = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_dt3000_ai_pgl = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.02)
-	}
-};
-
-enum dt3k_boardid {
-	BOARD_DT3001,
-	BOARD_DT3001_PGL,
-	BOARD_DT3002,
-	BOARD_DT3003,
-	BOARD_DT3003_PGL,
-	BOARD_DT3004,
-	BOARD_DT3005,
-};
-
-struct dt3k_boardtype {
-	const char *name;
-	int adchan;
-	int adbits;
-	int ai_speed;
-	const struct comedi_lrange *adrange;
-	int dachan;
-	int dabits;
-};
-
-static const struct dt3k_boardtype dt3k_boardtypes[] = {
-	[BOARD_DT3001] = {
-		.name		= "dt3001",
-		.adchan		= 16,
-		.adbits		= 12,
-		.adrange	= &range_dt3000_ai,
-		.ai_speed	= 3000,
-		.dachan		= 2,
-		.dabits		= 12,
-	},
-	[BOARD_DT3001_PGL] = {
-		.name		= "dt3001-pgl",
-		.adchan		= 16,
-		.adbits		= 12,
-		.adrange	= &range_dt3000_ai_pgl,
-		.ai_speed	= 3000,
-		.dachan		= 2,
-		.dabits		= 12,
-	},
-	[BOARD_DT3002] = {
-		.name		= "dt3002",
-		.adchan		= 32,
-		.adbits		= 12,
-		.adrange	= &range_dt3000_ai,
-		.ai_speed	= 3000,
-	},
-	[BOARD_DT3003] = {
-		.name		= "dt3003",
-		.adchan		= 64,
-		.adbits		= 12,
-		.adrange	= &range_dt3000_ai,
-		.ai_speed	= 3000,
-		.dachan		= 2,
-		.dabits		= 12,
-	},
-	[BOARD_DT3003_PGL] = {
-		.name		= "dt3003-pgl",
-		.adchan		= 64,
-		.adbits		= 12,
-		.adrange	= &range_dt3000_ai_pgl,
-		.ai_speed	= 3000,
-		.dachan		= 2,
-		.dabits		= 12,
-	},
-	[BOARD_DT3004] = {
-		.name		= "dt3004",
-		.adchan		= 16,
-		.adbits		= 16,
-		.adrange	= &range_dt3000_ai,
-		.ai_speed	= 10000,
-		.dachan		= 2,
-		.dabits		= 12,
-	},
-	[BOARD_DT3005] = {
-		.name		= "dt3005",	/* a.k.a. 3004-200 */
-		.adchan		= 16,
-		.adbits		= 16,
-		.adrange	= &range_dt3000_ai,
-		.ai_speed	= 5000,
-		.dachan		= 2,
-		.dabits		= 12,
-	},
-};
-
-/* dual-ported RAM location definitions */
-
-#define DPR_DAC_buffer		(4*0x000)
-#define DPR_ADC_buffer		(4*0x800)
-#define DPR_Command		(4*0xfd3)
-#define DPR_SubSys		(4*0xfd3)
-#define DPR_Encode		(4*0xfd4)
-#define DPR_Params(a)		(4*(0xfd5+(a)))
-#define DPR_Tick_Reg_Lo		(4*0xff5)
-#define DPR_Tick_Reg_Hi		(4*0xff6)
-#define DPR_DA_Buf_Front	(4*0xff7)
-#define DPR_DA_Buf_Rear		(4*0xff8)
-#define DPR_AD_Buf_Front	(4*0xff9)
-#define DPR_AD_Buf_Rear		(4*0xffa)
-#define DPR_Int_Mask		(4*0xffb)
-#define DPR_Intr_Flag		(4*0xffc)
-#define DPR_Response_Mbx	(4*0xffe)
-#define DPR_Command_Mbx		(4*0xfff)
-
-#define AI_FIFO_DEPTH	2003
-#define AO_FIFO_DEPTH	2048
-
-/* command list */
-
-#define CMD_GETBRDINFO		0
-#define CMD_CONFIG		1
-#define CMD_GETCONFIG		2
-#define CMD_START		3
-#define CMD_STOP		4
-#define CMD_READSINGLE		5
-#define CMD_WRITESINGLE		6
-#define CMD_CALCCLOCK		7
-#define CMD_READEVENTS		8
-#define CMD_WRITECTCTRL		16
-#define CMD_READCTCTRL		17
-#define CMD_WRITECT		18
-#define CMD_READCT		19
-#define CMD_WRITEDATA		32
-#define CMD_READDATA		33
-#define CMD_WRITEIO		34
-#define CMD_READIO		35
-#define CMD_WRITECODE		36
-#define CMD_READCODE		37
-#define CMD_EXECUTE		38
-#define CMD_HALT		48
-
-#define SUBS_AI		0
-#define SUBS_AO		1
-#define SUBS_DIN	2
-#define SUBS_DOUT	3
-#define SUBS_MEM	4
-#define SUBS_CT		5
-
-/* interrupt flags */
-#define DT3000_CMDONE		0x80
-#define DT3000_CTDONE		0x40
-#define DT3000_DAHWERR		0x20
-#define DT3000_DASWERR		0x10
-#define DT3000_DAEMPTY		0x08
-#define DT3000_ADHWERR		0x04
-#define DT3000_ADSWERR		0x02
-#define DT3000_ADFULL		0x01
-
-#define DT3000_COMPLETION_MASK	0xff00
-#define DT3000_COMMAND_MASK	0x00ff
-#define DT3000_NOTPROCESSED	0x0000
-#define DT3000_NOERROR		0x5500
-#define DT3000_ERROR		0xaa00
-#define DT3000_NOTSUPPORTED	0xff00
-
-#define DT3000_EXTERNAL_CLOCK	1
-#define DT3000_RISING_EDGE	2
-
-#define TMODE_MASK		0x1c
-
-#define DT3000_AD_TRIG_INTERNAL		(0<<2)
-#define DT3000_AD_TRIG_EXTERNAL		(1<<2)
-#define DT3000_AD_RETRIG_INTERNAL	(2<<2)
-#define DT3000_AD_RETRIG_EXTERNAL	(3<<2)
-#define DT3000_AD_EXTRETRIG		(4<<2)
-
-#define DT3000_CHANNEL_MODE_SE		0
-#define DT3000_CHANNEL_MODE_DI		1
-
-struct dt3k_private {
-	unsigned int lock;
-	unsigned int ai_front;
-	unsigned int ai_rear;
-};
-
-#define TIMEOUT 100
-
-static void dt3k_send_cmd(struct comedi_device *dev, unsigned int cmd)
-{
-	int i;
-	unsigned int status = 0;
-
-	writew(cmd, dev->mmio + DPR_Command_Mbx);
-
-	for (i = 0; i < TIMEOUT; i++) {
-		status = readw(dev->mmio + DPR_Command_Mbx);
-		if ((status & DT3000_COMPLETION_MASK) != DT3000_NOTPROCESSED)
-			break;
-		udelay(1);
-	}
-
-	if ((status & DT3000_COMPLETION_MASK) != DT3000_NOERROR)
-		dev_dbg(dev->class_dev, "%s: timeout/error status=0x%04x\n",
-			__func__, status);
-}
-
-static unsigned int dt3k_readsingle(struct comedi_device *dev,
-				    unsigned int subsys, unsigned int chan,
-				    unsigned int gain)
-{
-	writew(subsys, dev->mmio + DPR_SubSys);
-
-	writew(chan, dev->mmio + DPR_Params(0));
-	writew(gain, dev->mmio + DPR_Params(1));
-
-	dt3k_send_cmd(dev, CMD_READSINGLE);
-
-	return readw(dev->mmio + DPR_Params(2));
-}
-
-static void dt3k_writesingle(struct comedi_device *dev, unsigned int subsys,
-			     unsigned int chan, unsigned int data)
-{
-	writew(subsys, dev->mmio + DPR_SubSys);
-
-	writew(chan, dev->mmio + DPR_Params(0));
-	writew(0, dev->mmio + DPR_Params(1));
-	writew(data, dev->mmio + DPR_Params(2));
-
-	dt3k_send_cmd(dev, CMD_WRITESINGLE);
-}
-
-static void dt3k_ai_empty_fifo(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	struct dt3k_private *devpriv = dev->private;
-	int front;
-	int rear;
-	int count;
-	int i;
-	unsigned short data;
-
-	front = readw(dev->mmio + DPR_AD_Buf_Front);
-	count = front - devpriv->ai_front;
-	if (count < 0)
-		count += AI_FIFO_DEPTH;
-
-	rear = devpriv->ai_rear;
-
-	for (i = 0; i < count; i++) {
-		data = readw(dev->mmio + DPR_ADC_buffer + rear);
-		comedi_buf_write_samples(s, &data, 1);
-		rear++;
-		if (rear >= AI_FIFO_DEPTH)
-			rear = 0;
-	}
-
-	devpriv->ai_rear = rear;
-	writew(rear, dev->mmio + DPR_AD_Buf_Rear);
-}
-
-static int dt3k_ai_cancel(struct comedi_device *dev,
-			  struct comedi_subdevice *s)
-{
-	writew(SUBS_AI, dev->mmio + DPR_SubSys);
-	dt3k_send_cmd(dev, CMD_STOP);
-
-	writew(0, dev->mmio + DPR_Int_Mask);
-
-	return 0;
-}
-
-static int debug_n_ints;
-
-/* FIXME! Assumes shared interrupt is for this card. */
-/* What's this debug_n_ints stuff? Obviously needs some work... */
-static irqreturn_t dt3k_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int status;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	status = readw(dev->mmio + DPR_Intr_Flag);
-
-	if (status & DT3000_ADFULL)
-		dt3k_ai_empty_fifo(dev, s);
-
-	if (status & (DT3000_ADSWERR | DT3000_ADHWERR))
-		s->async->events |= COMEDI_CB_ERROR;
-
-	debug_n_ints++;
-	if (debug_n_ints >= 10)
-		s->async->events |= COMEDI_CB_EOA;
-
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec,
-			    unsigned int flags)
-{
-	int divider, base, prescale;
-
-	/* This function needs improvment */
-	/* Don't know if divider==0 works. */
-
-	for (prescale = 0; prescale < 16; prescale++) {
-		base = timer_base * (prescale + 1);
-		switch (flags & CMDF_ROUND_MASK) {
-		case CMDF_ROUND_NEAREST:
-		default:
-			divider = (*nanosec + base / 2) / base;
-			break;
-		case CMDF_ROUND_DOWN:
-			divider = (*nanosec) / base;
-			break;
-		case CMDF_ROUND_UP:
-			divider = (*nanosec) / base;
-			break;
-		}
-		if (divider < 65536) {
-			*nanosec = divider * base;
-			return (prescale << 16) | (divider);
-		}
-	}
-
-	prescale = 15;
-	base = timer_base * (1 << prescale);
-	divider = 65535;
-	*nanosec = divider * base;
-	return (prescale << 16) | (divider);
-}
-
-static int dt3k_ai_cmdtest(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	const struct dt3k_boardtype *board = dev->board_ptr;
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    board->ai_speed);
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-						    100 * 16 * 65535);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_speed);
-		err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
-						    50 * 16 * 65535);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		dt3k_ns_to_timer(100, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		dt3k_ns_to_timer(50, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			arg = cmd->convert_arg * cmd->scan_end_arg;
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    arg);
-		}
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int i;
-	unsigned int chan, range, aref;
-	unsigned int divider;
-	unsigned int tscandiv;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		chan = CR_CHAN(cmd->chanlist[i]);
-		range = CR_RANGE(cmd->chanlist[i]);
-
-		writew((range << 6) | chan, dev->mmio + DPR_ADC_buffer + i);
-	}
-	aref = CR_AREF(cmd->chanlist[0]);
-
-	writew(cmd->scan_end_arg, dev->mmio + DPR_Params(0));
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		divider = dt3k_ns_to_timer(50, &cmd->convert_arg, cmd->flags);
-		writew((divider >> 16), dev->mmio + DPR_Params(1));
-		writew((divider & 0xffff), dev->mmio + DPR_Params(2));
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		tscandiv = dt3k_ns_to_timer(100, &cmd->scan_begin_arg,
-					    cmd->flags);
-		writew((tscandiv >> 16), dev->mmio + DPR_Params(3));
-		writew((tscandiv & 0xffff), dev->mmio + DPR_Params(4));
-	}
-
-	writew(DT3000_AD_RETRIG_INTERNAL, dev->mmio + DPR_Params(5));
-	writew(aref == AREF_DIFF, dev->mmio + DPR_Params(6));
-
-	writew(AI_FIFO_DEPTH / 2, dev->mmio + DPR_Params(7));
-
-	writew(SUBS_AI, dev->mmio + DPR_SubSys);
-	dt3k_send_cmd(dev, CMD_CONFIG);
-
-	writew(DT3000_ADFULL | DT3000_ADSWERR | DT3000_ADHWERR,
-	       dev->mmio + DPR_Int_Mask);
-
-	debug_n_ints = 0;
-
-	writew(SUBS_AI, dev->mmio + DPR_SubSys);
-	dt3k_send_cmd(dev, CMD_START);
-
-	return 0;
-}
-
-static int dt3k_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			struct comedi_insn *insn, unsigned int *data)
-{
-	int i;
-	unsigned int chan, gain, aref;
-
-	chan = CR_CHAN(insn->chanspec);
-	gain = CR_RANGE(insn->chanspec);
-	/* XXX docs don't explain how to select aref */
-	aref = CR_AREF(insn->chanspec);
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = dt3k_readsingle(dev, SUBS_AI, chan, gain);
-
-	return i;
-}
-
-static int dt3k_ao_insn_write(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		dt3k_writesingle(dev, SUBS_AO, chan, val);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static void dt3k_dio_config(struct comedi_device *dev, int bits)
-{
-	/* XXX */
-	writew(SUBS_DOUT, dev->mmio + DPR_SubSys);
-
-	writew(bits, dev->mmio + DPR_Params(0));
-#if 0
-	/* don't know */
-	writew(0, dev->mmio + DPR_Params(1));
-	writew(0, dev->mmio + DPR_Params(2));
-#endif
-
-	dt3k_send_cmd(dev, CMD_CONFIG);
-}
-
-static int dt3k_dio_insn_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 4)
-		mask = 0x0f;
-	else
-		mask = 0xf0;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	dt3k_dio_config(dev, (s->io_bits & 0x01) | ((s->io_bits & 0x10) >> 3));
-
-	return insn->n;
-}
-
-static int dt3k_dio_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		dt3k_writesingle(dev, SUBS_DOUT, 0, s->state);
-
-	data[1] = dt3k_readsingle(dev, SUBS_DIN, 0, 0);
-
-	return insn->n;
-}
-
-static int dt3k_mem_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int addr = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		writew(SUBS_MEM, dev->mmio + DPR_SubSys);
-		writew(addr, dev->mmio + DPR_Params(0));
-		writew(1, dev->mmio + DPR_Params(1));
-
-		dt3k_send_cmd(dev, CMD_READCODE);
-
-		data[i] = readw(dev->mmio + DPR_Params(2));
-	}
-
-	return i;
-}
-
-static int dt3000_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct dt3k_boardtype *board = NULL;
-	struct dt3k_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret = 0;
-
-	if (context < ARRAY_SIZE(dt3k_boardtypes))
-		board = &dt3k_boardtypes[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret < 0)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 0);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	if (pcidev->irq) {
-		ret = request_irq(pcidev->irq, dt3k_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* ai subdevice */
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan	= board->adchan;
-	s->insn_read	= dt3k_ai_insn;
-	s->maxdata	= (1 << board->adbits) - 1;
-	s->range_table	= &range_dt3000_ai;	/* XXX */
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= 512;
-		s->do_cmd	= dt3k_ai_cmd;
-		s->do_cmdtest	= dt3k_ai_cmdtest;
-		s->cancel	= dt3k_ai_cancel;
-	}
-
-	s = &dev->subdevices[1];
-	/* ao subsystem */
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= (1 << board->dabits) - 1;
-	s->len_chanlist	= 1;
-	s->range_table	= &range_bipolar10;
-	s->insn_write	= dt3k_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	/* dio subsystem */
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->insn_config	= dt3k_dio_insn_config;
-	s->insn_bits	= dt3k_dio_insn_bits;
-	s->maxdata	= 1;
-	s->len_chanlist	= 8;
-	s->range_table	= &range_digital;
-
-	s = &dev->subdevices[3];
-	/* mem subsystem */
-	s->type		= COMEDI_SUBD_MEMORY;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 0x1000;
-	s->insn_read	= dt3k_mem_insn_read;
-	s->maxdata	= 0xff;
-	s->len_chanlist	= 1;
-	s->range_table	= &range_unknown;
-
-#if 0
-	s = &dev->subdevices[4];
-	/* proc subsystem */
-	s->type = COMEDI_SUBD_PROC;
-#endif
-
-	return 0;
-}
-
-static struct comedi_driver dt3000_driver = {
-	.driver_name	= "dt3000",
-	.module		= THIS_MODULE,
-	.auto_attach	= dt3000_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int dt3000_pci_probe(struct pci_dev *dev,
-			    const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &dt3000_driver, id->driver_data);
-}
-
-static const struct pci_device_id dt3000_pci_table[] = {
-	{ PCI_VDEVICE(DT, 0x0022), BOARD_DT3001 },
-	{ PCI_VDEVICE(DT, 0x0023), BOARD_DT3002 },
-	{ PCI_VDEVICE(DT, 0x0024), BOARD_DT3003 },
-	{ PCI_VDEVICE(DT, 0x0025), BOARD_DT3004 },
-	{ PCI_VDEVICE(DT, 0x0026), BOARD_DT3005 },
-	{ PCI_VDEVICE(DT, 0x0027), BOARD_DT3001_PGL },
-	{ PCI_VDEVICE(DT, 0x0028), BOARD_DT3003_PGL },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, dt3000_pci_table);
-
-static struct pci_driver dt3000_pci_driver = {
-	.name		= "dt3000",
-	.id_table	= dt3000_pci_table,
-	.probe		= dt3000_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(dt3000_driver, dt3000_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
deleted file mode 100644
index e11c216a4c85..000000000000
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ /dev/null
@@ -1,885 +0,0 @@
-/*
- * comedi/drivers/dt9812.c
- *   COMEDI driver for DataTranslation DT9812 USB module
- *
- * Copyright (C) 2005 Anders Blomdell <anders.blomdell@control.lth.se>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
-
- *  This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
-Driver: dt9812
-Description: Data Translation DT9812 USB module
-Author: anders.blomdell@control.lth.se (Anders Blomdell)
-Status: in development
-Devices: [Data Translation] DT9812 (dt9812)
-Updated: Sun Nov 20 20:18:34 EST 2005
-
-This driver works, but bulk transfers not implemented. Might be a starting point
-for someone else. I found out too late that USB has too high latencies (>1 ms)
-for my needs.
-*/
-
-/*
- * Nota Bene:
- *   1. All writes to command pipe has to be 32 bytes (ISP1181B SHRTP=0 ?)
- *   2. The DDK source (as of sep 2005) is in error regarding the
- *      input MUX bits (example code says P4, but firmware schematics
- *      says P1).
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/uaccess.h>
-
-#include "../comedi_usb.h"
-
-#define DT9812_DIAGS_BOARD_INFO_ADDR	0xFBFF
-#define DT9812_MAX_WRITE_CMD_PIPE_SIZE	32
-#define DT9812_MAX_READ_CMD_PIPE_SIZE	32
-
-/* usb_bulk_msg() timout in milliseconds */
-#define DT9812_USB_TIMEOUT		1000
-
-/*
- * See Silican Laboratories C8051F020/1/2/3 manual
- */
-#define F020_SFR_P4			0x84
-#define F020_SFR_P1			0x90
-#define F020_SFR_P2			0xa0
-#define F020_SFR_P3			0xb0
-#define F020_SFR_AMX0CF			0xba
-#define F020_SFR_AMX0SL			0xbb
-#define F020_SFR_ADC0CF			0xbc
-#define F020_SFR_ADC0L			0xbe
-#define F020_SFR_ADC0H			0xbf
-#define F020_SFR_DAC0L			0xd2
-#define F020_SFR_DAC0H			0xd3
-#define F020_SFR_DAC0CN			0xd4
-#define F020_SFR_DAC1L			0xd5
-#define F020_SFR_DAC1H			0xd6
-#define F020_SFR_DAC1CN			0xd7
-#define F020_SFR_ADC0CN			0xe8
-
-#define F020_MASK_ADC0CF_AMP0GN0	0x01
-#define F020_MASK_ADC0CF_AMP0GN1	0x02
-#define F020_MASK_ADC0CF_AMP0GN2	0x04
-
-#define F020_MASK_ADC0CN_AD0EN		0x80
-#define F020_MASK_ADC0CN_AD0INT		0x20
-#define F020_MASK_ADC0CN_AD0BUSY	0x10
-
-#define F020_MASK_DACxCN_DACxEN		0x80
-
-enum {
-					/* A/D  D/A  DI  DO  CT */
-	DT9812_DEVID_DT9812_10,		/*  8    2   8   8   1  +/- 10V */
-	DT9812_DEVID_DT9812_2PT5,	/*  8    2   8   8   1  0-2.44V */
-};
-
-enum dt9812_gain {
-	DT9812_GAIN_0PT25 = 1,
-	DT9812_GAIN_0PT5 = 2,
-	DT9812_GAIN_1 = 4,
-	DT9812_GAIN_2 = 8,
-	DT9812_GAIN_4 = 16,
-	DT9812_GAIN_8 = 32,
-	DT9812_GAIN_16 = 64,
-};
-
-enum {
-	DT9812_LEAST_USB_FIRMWARE_CMD_CODE = 0,
-	/* Write Flash memory */
-	DT9812_W_FLASH_DATA = 0,
-	/* Read Flash memory misc config info */
-	DT9812_R_FLASH_DATA = 1,
-
-	/*
-	 * Register read/write commands for processor
-	 */
-
-	/* Read a single byte of USB memory */
-	DT9812_R_SINGLE_BYTE_REG = 2,
-	/* Write a single byte of USB memory */
-	DT9812_W_SINGLE_BYTE_REG = 3,
-	/* Multiple Reads of USB memory */
-	DT9812_R_MULTI_BYTE_REG = 4,
-	/* Multiple Writes of USB memory */
-	DT9812_W_MULTI_BYTE_REG = 5,
-	/* Read, (AND) with mask, OR value, then write (single) */
-	DT9812_RMW_SINGLE_BYTE_REG = 6,
-	/* Read, (AND) with mask, OR value, then write (multiple) */
-	DT9812_RMW_MULTI_BYTE_REG = 7,
-
-	/*
-	 * Register read/write commands for SMBus
-	 */
-
-	/* Read a single byte of SMBus */
-	DT9812_R_SINGLE_BYTE_SMBUS = 8,
-	/* Write a single byte of SMBus */
-	DT9812_W_SINGLE_BYTE_SMBUS = 9,
-	/* Multiple Reads of SMBus */
-	DT9812_R_MULTI_BYTE_SMBUS = 10,
-	/* Multiple Writes of SMBus */
-	DT9812_W_MULTI_BYTE_SMBUS = 11,
-
-	/*
-	 * Register read/write commands for a device
-	 */
-
-	/* Read a single byte of a device */
-	DT9812_R_SINGLE_BYTE_DEV = 12,
-	/* Write a single byte of a device */
-	DT9812_W_SINGLE_BYTE_DEV = 13,
-	/* Multiple Reads of a device */
-	DT9812_R_MULTI_BYTE_DEV = 14,
-	/* Multiple Writes of a device */
-	DT9812_W_MULTI_BYTE_DEV = 15,
-
-	/* Not sure if we'll need this */
-	DT9812_W_DAC_THRESHOLD = 16,
-
-	/* Set interrupt on change mask */
-	DT9812_W_INT_ON_CHANGE_MASK = 17,
-
-	/* Write (or Clear) the CGL for the ADC */
-	DT9812_W_CGL = 18,
-	/* Multiple Reads of USB memory */
-	DT9812_R_MULTI_BYTE_USBMEM = 19,
-	/* Multiple Writes to USB memory */
-	DT9812_W_MULTI_BYTE_USBMEM = 20,
-
-	/* Issue a start command to a given subsystem */
-	DT9812_START_SUBSYSTEM = 21,
-	/* Issue a stop command to a given subsystem */
-	DT9812_STOP_SUBSYSTEM = 22,
-
-	/* calibrate the board using CAL_POT_CMD */
-	DT9812_CALIBRATE_POT = 23,
-	/* set the DAC FIFO size */
-	DT9812_W_DAC_FIFO_SIZE = 24,
-	/* Write or Clear the CGL for the DAC */
-	DT9812_W_CGL_DAC = 25,
-	/* Read a single value from a subsystem */
-	DT9812_R_SINGLE_VALUE_CMD = 26,
-	/* Write a single value to a subsystem */
-	DT9812_W_SINGLE_VALUE_CMD = 27,
-	/* Valid DT9812_USB_FIRMWARE_CMD_CODE's will be less than this number */
-	DT9812_MAX_USB_FIRMWARE_CMD_CODE,
-};
-
-struct dt9812_flash_data {
-	__le16 numbytes;
-	__le16 address;
-};
-
-#define DT9812_MAX_NUM_MULTI_BYTE_RDS  \
-	((DT9812_MAX_WRITE_CMD_PIPE_SIZE - 4 - 1) / sizeof(u8))
-
-struct dt9812_read_multi {
-	u8 count;
-	u8 address[DT9812_MAX_NUM_MULTI_BYTE_RDS];
-};
-
-struct dt9812_write_byte {
-	u8 address;
-	u8 value;
-};
-
-#define DT9812_MAX_NUM_MULTI_BYTE_WRTS  \
-	((DT9812_MAX_WRITE_CMD_PIPE_SIZE - 4 - 1) / \
-	 sizeof(struct dt9812_write_byte))
-
-struct dt9812_write_multi {
-	u8 count;
-	struct dt9812_write_byte write[DT9812_MAX_NUM_MULTI_BYTE_WRTS];
-};
-
-struct dt9812_rmw_byte {
-	u8 address;
-	u8 and_mask;
-	u8 or_value;
-};
-
-#define DT9812_MAX_NUM_MULTI_BYTE_RMWS  \
-	((DT9812_MAX_WRITE_CMD_PIPE_SIZE - 4 - 1) / \
-	 sizeof(struct dt9812_rmw_byte))
-
-struct dt9812_rmw_multi {
-	u8 count;
-	struct dt9812_rmw_byte rmw[DT9812_MAX_NUM_MULTI_BYTE_RMWS];
-};
-
-struct dt9812_usb_cmd {
-	__le32 cmd;
-	union {
-		struct dt9812_flash_data flash_data_info;
-		struct dt9812_read_multi read_multi_info;
-		struct dt9812_write_multi write_multi_info;
-		struct dt9812_rmw_multi rmw_multi_info;
-	} u;
-};
-
-struct dt9812_private {
-	struct semaphore sem;
-	struct {
-		__u8 addr;
-		size_t size;
-	} cmd_wr, cmd_rd;
-	u16 device;
-};
-
-static int dt9812_read_info(struct comedi_device *dev,
-			    int offset, void *buf, size_t buf_size)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
-	int count, ret;
-
-	cmd.cmd = cpu_to_le32(DT9812_R_FLASH_DATA);
-	cmd.u.flash_data_info.address =
-	    cpu_to_le16(DT9812_DIAGS_BOARD_INFO_ADDR + offset);
-	cmd.u.flash_data_info.numbytes = cpu_to_le16(buf_size);
-
-	/* DT9812 only responds to 32 byte writes!! */
-	ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			   &cmd, 32, &count, DT9812_USB_TIMEOUT);
-	if (ret)
-		return ret;
-
-	return usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
-			    buf, buf_size, &count, DT9812_USB_TIMEOUT);
-}
-
-static int dt9812_read_multiple_registers(struct comedi_device *dev,
-					  int reg_count, u8 *address,
-					  u8 *value)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
-	int i, count, ret;
-
-	cmd.cmd = cpu_to_le32(DT9812_R_MULTI_BYTE_REG);
-	cmd.u.read_multi_info.count = reg_count;
-	for (i = 0; i < reg_count; i++)
-		cmd.u.read_multi_info.address[i] = address[i];
-
-	/* DT9812 only responds to 32 byte writes!! */
-	ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			   &cmd, 32, &count, DT9812_USB_TIMEOUT);
-	if (ret)
-		return ret;
-
-	return usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
-			    value, reg_count, &count, DT9812_USB_TIMEOUT);
-}
-
-static int dt9812_write_multiple_registers(struct comedi_device *dev,
-					   int reg_count, u8 *address,
-					   u8 *value)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
-	int i, count;
-
-	cmd.cmd = cpu_to_le32(DT9812_W_MULTI_BYTE_REG);
-	cmd.u.read_multi_info.count = reg_count;
-	for (i = 0; i < reg_count; i++) {
-		cmd.u.write_multi_info.write[i].address = address[i];
-		cmd.u.write_multi_info.write[i].value = value[i];
-	}
-
-	/* DT9812 only responds to 32 byte writes!! */
-	return usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			    &cmd, 32, &count, DT9812_USB_TIMEOUT);
-}
-
-static int dt9812_rmw_multiple_registers(struct comedi_device *dev,
-					 int reg_count,
-					 struct dt9812_rmw_byte *rmw)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
-	int i, count;
-
-	cmd.cmd = cpu_to_le32(DT9812_RMW_MULTI_BYTE_REG);
-	cmd.u.rmw_multi_info.count = reg_count;
-	for (i = 0; i < reg_count; i++)
-		cmd.u.rmw_multi_info.rmw[i] = rmw[i];
-
-	/* DT9812 only responds to 32 byte writes!! */
-	return usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			    &cmd, 32, &count, DT9812_USB_TIMEOUT);
-}
-
-static int dt9812_digital_in(struct comedi_device *dev, u8 *bits)
-{
-	struct dt9812_private *devpriv = dev->private;
-	u8 reg[2] = { F020_SFR_P3, F020_SFR_P1 };
-	u8 value[2];
-	int ret;
-
-	down(&devpriv->sem);
-	ret = dt9812_read_multiple_registers(dev, 2, reg, value);
-	if (ret == 0) {
-		/*
-		 * bits 0-6 in F020_SFR_P3 are bits 0-6 in the digital
-		 * input port bit 3 in F020_SFR_P1 is bit 7 in the
-		 * digital input port
-		 */
-		*bits = (value[0] & 0x7f) | ((value[1] & 0x08) << 4);
-	}
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int dt9812_digital_out(struct comedi_device *dev, u8 bits)
-{
-	struct dt9812_private *devpriv = dev->private;
-	u8 reg[1] = { F020_SFR_P2 };
-	u8 value[1] = { bits };
-	int ret;
-
-	down(&devpriv->sem);
-	ret = dt9812_write_multiple_registers(dev, 1, reg, value);
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static void dt9812_configure_mux(struct comedi_device *dev,
-				 struct dt9812_rmw_byte *rmw, int channel)
-{
-	struct dt9812_private *devpriv = dev->private;
-
-	if (devpriv->device == DT9812_DEVID_DT9812_10) {
-		/* In the DT9812/10V MUX is selected by P1.5-7 */
-		rmw->address = F020_SFR_P1;
-		rmw->and_mask = 0xe0;
-		rmw->or_value = channel << 5;
-	} else {
-		/* In the DT9812/2.5V, internal mux is selected by bits 0:2 */
-		rmw->address = F020_SFR_AMX0SL;
-		rmw->and_mask = 0xff;
-		rmw->or_value = channel & 0x07;
-	}
-}
-
-static void dt9812_configure_gain(struct comedi_device *dev,
-				  struct dt9812_rmw_byte *rmw,
-				  enum dt9812_gain gain)
-{
-	struct dt9812_private *devpriv = dev->private;
-
-	/* In the DT9812/10V, there is an external gain of 0.5 */
-	if (devpriv->device == DT9812_DEVID_DT9812_10)
-		gain <<= 1;
-
-	rmw->address = F020_SFR_ADC0CF;
-	rmw->and_mask = F020_MASK_ADC0CF_AMP0GN2 |
-			F020_MASK_ADC0CF_AMP0GN1 |
-			F020_MASK_ADC0CF_AMP0GN0;
-
-	switch (gain) {
-		/*
-		 * 000 -> Gain =  1
-		 * 001 -> Gain =  2
-		 * 010 -> Gain =  4
-		 * 011 -> Gain =  8
-		 * 10x -> Gain = 16
-		 * 11x -> Gain =  0.5
-		 */
-	case DT9812_GAIN_0PT5:
-		rmw->or_value = F020_MASK_ADC0CF_AMP0GN2 |
-				F020_MASK_ADC0CF_AMP0GN1;
-		break;
-	default:
-		/* this should never happen, just use a gain of 1 */
-	case DT9812_GAIN_1:
-		rmw->or_value = 0x00;
-		break;
-	case DT9812_GAIN_2:
-		rmw->or_value = F020_MASK_ADC0CF_AMP0GN0;
-		break;
-	case DT9812_GAIN_4:
-		rmw->or_value = F020_MASK_ADC0CF_AMP0GN1;
-		break;
-	case DT9812_GAIN_8:
-		rmw->or_value = F020_MASK_ADC0CF_AMP0GN1 |
-				F020_MASK_ADC0CF_AMP0GN0;
-		break;
-	case DT9812_GAIN_16:
-		rmw->or_value = F020_MASK_ADC0CF_AMP0GN2;
-		break;
-	}
-}
-
-static int dt9812_analog_in(struct comedi_device *dev,
-			    int channel, u16 *value, enum dt9812_gain gain)
-{
-	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_rmw_byte rmw[3];
-	u8 reg[3] = {
-		F020_SFR_ADC0CN,
-		F020_SFR_ADC0H,
-		F020_SFR_ADC0L
-	};
-	u8 val[3];
-	int ret;
-
-	down(&devpriv->sem);
-
-	/* 1 select the gain */
-	dt9812_configure_gain(dev, &rmw[0], gain);
-
-	/* 2 set the MUX to select the channel */
-	dt9812_configure_mux(dev, &rmw[1], channel);
-
-	/* 3 start conversion */
-	rmw[2].address = F020_SFR_ADC0CN;
-	rmw[2].and_mask = 0xff;
-	rmw[2].or_value = F020_MASK_ADC0CN_AD0EN | F020_MASK_ADC0CN_AD0BUSY;
-
-	ret = dt9812_rmw_multiple_registers(dev, 3, rmw);
-	if (ret)
-		goto exit;
-
-	/* read the status and ADC */
-	ret = dt9812_read_multiple_registers(dev, 3, reg, val);
-	if (ret)
-		goto exit;
-
-	/*
-	 * An ADC conversion takes 16 SAR clocks cycles, i.e. about 9us.
-	 * Therefore, between the instant that AD0BUSY was set via
-	 * dt9812_rmw_multiple_registers and the read of AD0BUSY via
-	 * dt9812_read_multiple_registers, the conversion should be complete
-	 * since these two operations require two USB transactions each taking
-	 * at least a millisecond to complete.  However, lets make sure that
-	 * conversion is finished.
-	 */
-	if ((val[0] & (F020_MASK_ADC0CN_AD0INT | F020_MASK_ADC0CN_AD0BUSY)) ==
-	    F020_MASK_ADC0CN_AD0INT) {
-		switch (devpriv->device) {
-		case DT9812_DEVID_DT9812_10:
-			/*
-			 * For DT9812-10V the personality module set the
-			 * encoding to 2's complement. Hence, convert it before
-			 * returning it
-			 */
-			*value = ((val[1] << 8) | val[2]) + 0x800;
-			break;
-		case DT9812_DEVID_DT9812_2PT5:
-			*value = (val[1] << 8) | val[2];
-			break;
-		}
-	}
-
-exit:
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int dt9812_analog_out(struct comedi_device *dev, int channel, u16 value)
-{
-	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_rmw_byte rmw[3];
-	int ret;
-
-	down(&devpriv->sem);
-
-	switch (channel) {
-	case 0:
-		/* 1. Set DAC mode */
-		rmw[0].address = F020_SFR_DAC0CN;
-		rmw[0].and_mask = 0xff;
-		rmw[0].or_value = F020_MASK_DACxCN_DACxEN;
-
-		/* 2 load low byte of DAC value first */
-		rmw[1].address = F020_SFR_DAC0L;
-		rmw[1].and_mask = 0xff;
-		rmw[1].or_value = value & 0xff;
-
-		/* 3 load high byte of DAC value next to latch the
-			12-bit value */
-		rmw[2].address = F020_SFR_DAC0H;
-		rmw[2].and_mask = 0xff;
-		rmw[2].or_value = (value >> 8) & 0xf;
-		break;
-
-	case 1:
-		/* 1. Set DAC mode */
-		rmw[0].address = F020_SFR_DAC1CN;
-		rmw[0].and_mask = 0xff;
-		rmw[0].or_value = F020_MASK_DACxCN_DACxEN;
-
-		/* 2 load low byte of DAC value first */
-		rmw[1].address = F020_SFR_DAC1L;
-		rmw[1].and_mask = 0xff;
-		rmw[1].or_value = value & 0xff;
-
-		/* 3 load high byte of DAC value next to latch the
-			12-bit value */
-		rmw[2].address = F020_SFR_DAC1H;
-		rmw[2].and_mask = 0xff;
-		rmw[2].or_value = (value >> 8) & 0xf;
-		break;
-	}
-	ret = dt9812_rmw_multiple_registers(dev, 3, rmw);
-
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int dt9812_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	u8 bits = 0;
-	int ret;
-
-	ret = dt9812_digital_in(dev, &bits);
-	if (ret)
-		return ret;
-
-	data[1] = bits;
-
-	return insn->n;
-}
-
-static int dt9812_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		dt9812_digital_out(dev, s->state);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int dt9812_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	u16 val = 0;
-	int ret;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		ret = dt9812_analog_in(dev, chan, &val, DT9812_GAIN_1);
-		if (ret)
-			return ret;
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int dt9812_ao_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct dt9812_private *devpriv = dev->private;
-	int ret;
-
-	down(&devpriv->sem);
-	ret = comedi_readback_insn_read(dev, s, insn, data);
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int dt9812_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-		int ret;
-
-		ret = dt9812_analog_out(dev, chan, val);
-		if (ret)
-			return ret;
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int dt9812_find_endpoints(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usb_host_interface *host = intf->cur_altsetting;
-	struct dt9812_private *devpriv = dev->private;
-	struct usb_endpoint_descriptor *ep;
-	int i;
-
-	if (host->desc.bNumEndpoints != 5) {
-		dev_err(dev->class_dev, "Wrong number of endpoints\n");
-		return -ENODEV;
-	}
-
-	for (i = 0; i < host->desc.bNumEndpoints; ++i) {
-		int dir = -1;
-
-		ep = &host->endpoint[i].desc;
-		switch (i) {
-		case 0:
-			/* unused message pipe */
-			dir = USB_DIR_IN;
-			break;
-		case 1:
-			dir = USB_DIR_OUT;
-			devpriv->cmd_wr.addr = ep->bEndpointAddress;
-			devpriv->cmd_wr.size = le16_to_cpu(ep->wMaxPacketSize);
-			break;
-		case 2:
-			dir = USB_DIR_IN;
-			devpriv->cmd_rd.addr = ep->bEndpointAddress;
-			devpriv->cmd_rd.size = le16_to_cpu(ep->wMaxPacketSize);
-			break;
-		case 3:
-			/* unused write stream */
-			dir = USB_DIR_OUT;
-			break;
-		case 4:
-			/* unused read stream */
-			dir = USB_DIR_IN;
-			break;
-		}
-		if ((ep->bEndpointAddress & USB_DIR_IN) != dir) {
-			dev_err(dev->class_dev,
-				"Endpoint has wrong direction\n");
-			return -ENODEV;
-		}
-	}
-	return 0;
-}
-
-static int dt9812_reset_device(struct comedi_device *dev)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct dt9812_private *devpriv = dev->private;
-	u32 serial;
-	u16 vendor;
-	u16 product;
-	u8 tmp8;
-	__le16 tmp16;
-	__le32 tmp32;
-	int ret;
-	int i;
-
-	ret = dt9812_read_info(dev, 0, &tmp8, sizeof(tmp8));
-	if (ret) {
-		/*
-		 * Seems like a configuration reset is necessary if driver is
-		 * reloaded while device is attached
-		 */
-		usb_reset_configuration(usb);
-		for (i = 0; i < 10; i++) {
-			ret = dt9812_read_info(dev, 1, &tmp8, sizeof(tmp8));
-			if (ret == 0)
-				break;
-		}
-		if (ret) {
-			dev_err(dev->class_dev,
-				"unable to reset configuration\n");
-			return ret;
-		}
-	}
-
-	ret = dt9812_read_info(dev, 1, &tmp16, sizeof(tmp16));
-	if (ret) {
-		dev_err(dev->class_dev, "failed to read vendor id\n");
-		return ret;
-	}
-	vendor = le16_to_cpu(tmp16);
-
-	ret = dt9812_read_info(dev, 3, &tmp16, sizeof(tmp16));
-	if (ret) {
-		dev_err(dev->class_dev, "failed to read product id\n");
-		return ret;
-	}
-	product = le16_to_cpu(tmp16);
-
-	ret = dt9812_read_info(dev, 5, &tmp16, sizeof(tmp16));
-	if (ret) {
-		dev_err(dev->class_dev, "failed to read device id\n");
-		return ret;
-	}
-	devpriv->device = le16_to_cpu(tmp16);
-
-	ret = dt9812_read_info(dev, 7, &tmp32, sizeof(tmp32));
-	if (ret) {
-		dev_err(dev->class_dev, "failed to read serial number\n");
-		return ret;
-	}
-	serial = le32_to_cpu(tmp32);
-
-	/* let the user know what node this device is now attached to */
-	dev_info(dev->class_dev, "USB DT9812 (%4.4x.%4.4x.%4.4x) #0x%8.8x\n",
-		 vendor, product, devpriv->device, serial);
-
-	if (devpriv->device != DT9812_DEVID_DT9812_10 &&
-	    devpriv->device != DT9812_DEVID_DT9812_2PT5) {
-		dev_err(dev->class_dev, "Unsupported device!\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int dt9812_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct dt9812_private *devpriv;
-	struct comedi_subdevice *s;
-	bool is_unipolar;
-	int ret;
-	int i;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	sema_init(&devpriv->sem, 1);
-	usb_set_intfdata(intf, devpriv);
-
-	ret = dt9812_find_endpoints(dev);
-	if (ret)
-		return ret;
-
-	ret = dt9812_reset_device(dev);
-	if (ret)
-		return ret;
-
-	is_unipolar = (devpriv->device == DT9812_DEVID_DT9812_2PT5);
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= dt9812_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= dt9812_do_insn_bits;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	s->n_chan	= 8;
-	s->maxdata	= 0x0fff;
-	s->range_table	= is_unipolar ? &range_unipolar2_5 : &range_bipolar10;
-	s->insn_read	= dt9812_ai_insn_read;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 0x0fff;
-	s->range_table	= is_unipolar ? &range_unipolar2_5 : &range_bipolar10;
-	s->insn_write	= dt9812_ao_insn_write;
-	s->insn_read	= dt9812_ao_insn_read;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < s->n_chan; i++)
-		s->readback[i] = is_unipolar ? 0x0000 : 0x0800;
-
-	return 0;
-}
-
-static void dt9812_detach(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct dt9812_private *devpriv = dev->private;
-
-	if (!devpriv)
-		return;
-
-	down(&devpriv->sem);
-
-	usb_set_intfdata(intf, NULL);
-
-	up(&devpriv->sem);
-}
-
-static struct comedi_driver dt9812_driver = {
-	.driver_name	= "dt9812",
-	.module		= THIS_MODULE,
-	.auto_attach	= dt9812_auto_attach,
-	.detach		= dt9812_detach,
-};
-
-static int dt9812_usb_probe(struct usb_interface *intf,
-			    const struct usb_device_id *id)
-{
-	return comedi_usb_auto_config(intf, &dt9812_driver, id->driver_info);
-}
-
-static const struct usb_device_id dt9812_usb_table[] = {
-	{ USB_DEVICE(0x0867, 0x9812) },
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, dt9812_usb_table);
-
-static struct usb_driver dt9812_usb_driver = {
-	.name		= "dt9812",
-	.id_table	= dt9812_usb_table,
-	.probe		= dt9812_usb_probe,
-	.disconnect	= comedi_usb_auto_unconfig,
-};
-module_comedi_usb_driver(dt9812_driver, dt9812_usb_driver);
-
-MODULE_AUTHOR("Anders Blomdell <anders.blomdell@control.lth.se>");
-MODULE_DESCRIPTION("Comedi DT9812 driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c
deleted file mode 100644
index c9eb26fab44e..000000000000
--- a/drivers/staging/comedi/drivers/dyna_pci10xx.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * comedi/drivers/dyna_pci10xx.c
- * Copyright (C) 2011 Prashant Shah, pshah.mumbai@gmail.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: dyna_pci10xx
- * Description: Dynalog India PCI DAQ Cards, http://www.dynalogindia.com/
- * Devices: [Dynalog] PCI-1050 (dyna_pci1050)
- * Author: Prashant Shah <pshah.mumbai@gmail.com>
- * Status: Stable
- *
- * Developed at Automation Labs, Chemical Dept., IIT Bombay, India.
- * Prof. Kannan Moudgalya <kannan@iitb.ac.in>
- * http://www.iitb.ac.in
- *
- * Notes :
- * - Dynalog India Pvt. Ltd. does not have a registered PCI Vendor ID and
- *   they are using the PLX Technlogies Vendor ID since that is the PCI Chip
- *   used in the card.
- * - Dynalog India Pvt. Ltd. has provided the internal register specification
- *   for their cards in their manuals.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-
-#include "../comedi_pci.h"
-
-#define READ_TIMEOUT 50
-
-static const struct comedi_lrange range_pci1050_ai = {
-	3, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-static const char range_codes_pci1050_ai[] = { 0x00, 0x10, 0x30 };
-
-struct dyna_pci10xx_private {
-	struct mutex mutex;
-	unsigned long BADR3;
-};
-
-static int dyna_pci10xx_ai_eoc(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned long context)
-{
-	unsigned int status;
-
-	status = inw_p(dev->iobase);
-	if (status & (1 << 15))
-		return 0;
-	return -EBUSY;
-}
-
-static int dyna_pci10xx_insn_read_ai(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct dyna_pci10xx_private *devpriv = dev->private;
-	int n;
-	u16 d = 0;
-	int ret = 0;
-	unsigned int chan, range;
-
-	/* get the channel number and range */
-	chan = CR_CHAN(insn->chanspec);
-	range = range_codes_pci1050_ai[CR_RANGE((insn->chanspec))];
-
-	mutex_lock(&devpriv->mutex);
-	/* convert n samples */
-	for (n = 0; n < insn->n; n++) {
-		/* trigger conversion */
-		smp_mb();
-		outw_p(0x0000 + range + chan, dev->iobase + 2);
-		udelay(10);
-
-		ret = comedi_timeout(dev, s, insn, dyna_pci10xx_ai_eoc, 0);
-		if (ret)
-			break;
-
-		/* read data */
-		d = inw_p(dev->iobase);
-		/* mask the first 4 bits - EOC bits */
-		d &= 0x0FFF;
-		data[n] = d;
-	}
-	mutex_unlock(&devpriv->mutex);
-
-	/* return the number of samples read/written */
-	return ret ? ret : n;
-}
-
-/* analog output callback */
-static int dyna_pci10xx_insn_write_ao(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_insn *insn,
-				      unsigned int *data)
-{
-	struct dyna_pci10xx_private *devpriv = dev->private;
-	int n;
-	unsigned int chan, range;
-
-	chan = CR_CHAN(insn->chanspec);
-	range = range_codes_pci1050_ai[CR_RANGE((insn->chanspec))];
-
-	mutex_lock(&devpriv->mutex);
-	for (n = 0; n < insn->n; n++) {
-		smp_mb();
-		/* trigger conversion and write data */
-		outw_p(data[n], dev->iobase);
-		udelay(10);
-	}
-	mutex_unlock(&devpriv->mutex);
-	return n;
-}
-
-/* digital input bit interface */
-static int dyna_pci10xx_di_insn_bits(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct dyna_pci10xx_private *devpriv = dev->private;
-	u16 d = 0;
-
-	mutex_lock(&devpriv->mutex);
-	smp_mb();
-	d = inw_p(devpriv->BADR3);
-	udelay(10);
-
-	/* on return the data[0] contains output and data[1] contains input */
-	data[1] = d;
-	data[0] = s->state;
-	mutex_unlock(&devpriv->mutex);
-	return insn->n;
-}
-
-static int dyna_pci10xx_do_insn_bits(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct dyna_pci10xx_private *devpriv = dev->private;
-
-	mutex_lock(&devpriv->mutex);
-	if (comedi_dio_update_state(s, data)) {
-		smp_mb();
-		outw_p(s->state, devpriv->BADR3);
-		udelay(10);
-	}
-
-	data[1] = s->state;
-	mutex_unlock(&devpriv->mutex);
-
-	return insn->n;
-}
-
-static int dyna_pci10xx_auto_attach(struct comedi_device *dev,
-				    unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct dyna_pci10xx_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 2);
-	devpriv->BADR3 = pci_resource_start(pcidev, 3);
-
-	mutex_init(&devpriv->mutex);
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* analog input */
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan = 16;
-	s->maxdata = 0x0FFF;
-	s->range_table = &range_pci1050_ai;
-	s->len_chanlist = 16;
-	s->insn_read = dyna_pci10xx_insn_read_ai;
-
-	/* analog output */
-	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 16;
-	s->maxdata = 0x0FFF;
-	s->range_table = &range_unipolar10;
-	s->len_chanlist = 16;
-	s->insn_write = dyna_pci10xx_insn_write_ao;
-
-	/* digital input */
-	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->len_chanlist = 16;
-	s->insn_bits = dyna_pci10xx_di_insn_bits;
-
-	/* digital output */
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->len_chanlist = 16;
-	s->state = 0;
-	s->insn_bits = dyna_pci10xx_do_insn_bits;
-
-	return 0;
-}
-
-static void dyna_pci10xx_detach(struct comedi_device *dev)
-{
-	struct dyna_pci10xx_private *devpriv = dev->private;
-
-	comedi_pci_detach(dev);
-	if (devpriv)
-		mutex_destroy(&devpriv->mutex);
-}
-
-static struct comedi_driver dyna_pci10xx_driver = {
-	.driver_name	= "dyna_pci10xx",
-	.module		= THIS_MODULE,
-	.auto_attach	= dyna_pci10xx_auto_attach,
-	.detach		= dyna_pci10xx_detach,
-};
-
-static int dyna_pci10xx_pci_probe(struct pci_dev *dev,
-				  const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &dyna_pci10xx_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id dyna_pci10xx_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_PLX, 0x1050) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, dyna_pci10xx_pci_table);
-
-static struct pci_driver dyna_pci10xx_pci_driver = {
-	.name		= "dyna_pci10xx",
-	.id_table	= dyna_pci10xx_pci_table,
-	.probe		= dyna_pci10xx_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(dyna_pci10xx_driver, dyna_pci10xx_pci_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Prashant Shah <pshah.mumbai@gmail.com>");
-MODULE_DESCRIPTION("Comedi based drivers for Dynalog PCI DAQ cards");
diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c
deleted file mode 100644
index 55cae61458cb..000000000000
--- a/drivers/staging/comedi/drivers/fl512.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * fl512.c
- * Anders Gnistrup <ex18@kalman.iau.dtu.dk>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: fl512
- * Description: unknown
- * Author: Anders Gnistrup <ex18@kalman.iau.dtu.dk>
- * Devices: [unknown] FL512 (fl512)
- * Status: unknown
- *
- * Digital I/O is not supported.
- *
- * Configuration options:
- *   [0] - I/O port base address
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include <linux/delay.h>
-
-/*
- * Register I/O map
- */
-#define FL512_AI_LSB_REG		0x02
-#define FL512_AI_MSB_REG		0x03
-#define FL512_AI_MUX_REG		0x02
-#define FL512_AI_START_CONV_REG		0x03
-#define FL512_AO_DATA_REG(x)		(0x04 + ((x) * 2))
-#define FL512_AO_TRIG_REG(x)		(0x04 + ((x) * 2))
-
-static const struct comedi_lrange range_fl512 = {
-	4, {
-		BIP_RANGE(0.5),
-		BIP_RANGE(1),
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-static int fl512_ai_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	outb(chan, dev->iobase + FL512_AI_MUX_REG);
-
-	for (i = 0; i < insn->n; i++) {
-		outb(0, dev->iobase + FL512_AI_START_CONV_REG);
-
-		/* XXX should test "done" flag instead of delay */
-		udelay(30);
-
-		val = inb(dev->iobase + FL512_AI_LSB_REG);
-		val |= (inb(dev->iobase + FL512_AI_MSB_REG) << 8);
-		val &= s->maxdata;
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int fl512_ao_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		/* write LSB, MSB then trigger conversion */
-		outb(val & 0x0ff, dev->iobase + FL512_AO_DATA_REG(chan));
-		outb((val >> 8) & 0xf, dev->iobase + FL512_AO_DATA_REG(chan));
-		inb(dev->iobase + FL512_AO_TRIG_REG(chan));
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	s->n_chan	= 16;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &range_fl512;
-	s->insn_read	= fl512_ai_insn_read;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &range_fl512;
-	s->insn_write	= fl512_ao_insn_write;
-
-	return comedi_alloc_subdev_readback(s);
-}
-
-static struct comedi_driver fl512_driver = {
-	.driver_name	= "fl512",
-	.module		= THIS_MODULE,
-	.attach		= fl512_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(fl512_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
deleted file mode 100644
index e9296182236e..000000000000
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ /dev/null
@@ -1,721 +0,0 @@
-/*
- * gsc_hpdi.c
- * Comedi driver the General Standards Corporation
- * High Speed Parallel Digital Interface rs485 boards.
- *
- * Author:  Frank Mori Hess <fmhess@users.sourceforge.net>
- * Copyright (C) 2003 Coherent Imaging Systems
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: gsc_hpdi
- * Description: General Standards Corporation High
- *    Speed Parallel Digital Interface rs485 boards
- * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
- * Status: only receive mode works, transmit not supported
- * Updated: Thu, 01 Nov 2012 16:17:38 +0000
- * Devices: [General Standards Corporation] PCI-HPDI32 (gsc_hpdi),
- *   PMC-HPDI32
- *
- * Configuration options:
- *    None.
- *
- * Manual configuration of supported devices is not supported; they are
- * configured automatically.
- *
- * There are some additional hpdi models available from GSC for which
- * support could be added to this driver.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "plx9080.h"
-
-/*
- * PCI BAR2 Register map (dev->mmio)
- */
-#define FIRMWARE_REV_REG			0x00
-#define FEATURES_REG_PRESENT_BIT		BIT(15)
-#define BOARD_CONTROL_REG			0x04
-#define BOARD_RESET_BIT				BIT(0)
-#define TX_FIFO_RESET_BIT			BIT(1)
-#define RX_FIFO_RESET_BIT			BIT(2)
-#define TX_ENABLE_BIT				BIT(4)
-#define RX_ENABLE_BIT				BIT(5)
-#define DEMAND_DMA_DIRECTION_TX_BIT		BIT(6)  /* ch 0 only */
-#define LINE_VALID_ON_STATUS_VALID_BIT		BIT(7)
-#define START_TX_BIT				BIT(8)
-#define CABLE_THROTTLE_ENABLE_BIT		BIT(9)
-#define TEST_MODE_ENABLE_BIT			BIT(31)
-#define BOARD_STATUS_REG			0x08
-#define COMMAND_LINE_STATUS_MASK		(0x7f << 0)
-#define TX_IN_PROGRESS_BIT			BIT(7)
-#define TX_NOT_EMPTY_BIT			BIT(8)
-#define TX_NOT_ALMOST_EMPTY_BIT			BIT(9)
-#define TX_NOT_ALMOST_FULL_BIT			BIT(10)
-#define TX_NOT_FULL_BIT				BIT(11)
-#define RX_NOT_EMPTY_BIT			BIT(12)
-#define RX_NOT_ALMOST_EMPTY_BIT			BIT(13)
-#define RX_NOT_ALMOST_FULL_BIT			BIT(14)
-#define RX_NOT_FULL_BIT				BIT(15)
-#define BOARD_JUMPER0_INSTALLED_BIT		BIT(16)
-#define BOARD_JUMPER1_INSTALLED_BIT		BIT(17)
-#define TX_OVERRUN_BIT				BIT(21)
-#define RX_UNDERRUN_BIT				BIT(22)
-#define RX_OVERRUN_BIT				BIT(23)
-#define TX_PROG_ALMOST_REG			0x0c
-#define RX_PROG_ALMOST_REG			0x10
-#define ALMOST_EMPTY_BITS(x)			(((x) & 0xffff) << 0)
-#define ALMOST_FULL_BITS(x)			(((x) & 0xff) << 16)
-#define FEATURES_REG				0x14
-#define FIFO_SIZE_PRESENT_BIT			BIT(0)
-#define FIFO_WORDS_PRESENT_BIT			BIT(1)
-#define LEVEL_EDGE_INTERRUPTS_PRESENT_BIT	BIT(2)
-#define GPIO_SUPPORTED_BIT			BIT(3)
-#define PLX_DMA_CH1_SUPPORTED_BIT		BIT(4)
-#define OVERRUN_UNDERRUN_SUPPORTED_BIT		BIT(5)
-#define FIFO_REG				0x18
-#define TX_STATUS_COUNT_REG			0x1c
-#define TX_LINE_VALID_COUNT_REG			0x20,
-#define TX_LINE_INVALID_COUNT_REG		0x24
-#define RX_STATUS_COUNT_REG			0x28
-#define RX_LINE_COUNT_REG			0x2c
-#define INTERRUPT_CONTROL_REG			0x30
-#define FRAME_VALID_START_INTR			BIT(0)
-#define FRAME_VALID_END_INTR			BIT(1)
-#define TX_FIFO_EMPTY_INTR			BIT(8)
-#define TX_FIFO_ALMOST_EMPTY_INTR		BIT(9)
-#define TX_FIFO_ALMOST_FULL_INTR		BIT(10)
-#define TX_FIFO_FULL_INTR			BIT(11)
-#define RX_EMPTY_INTR				BIT(12)
-#define RX_ALMOST_EMPTY_INTR			BIT(13)
-#define RX_ALMOST_FULL_INTR			BIT(14)
-#define RX_FULL_INTR				BIT(15)
-#define INTERRUPT_STATUS_REG			0x34
-#define TX_CLOCK_DIVIDER_REG			0x38
-#define TX_FIFO_SIZE_REG			0x40
-#define RX_FIFO_SIZE_REG			0x44
-#define FIFO_SIZE_MASK				(0xfffff << 0)
-#define TX_FIFO_WORDS_REG			0x48
-#define RX_FIFO_WORDS_REG			0x4c
-#define INTERRUPT_EDGE_LEVEL_REG		0x50
-#define INTERRUPT_POLARITY_REG			0x54
-
-#define TIMER_BASE				50	/* 20MHz master clock */
-#define DMA_BUFFER_SIZE				0x10000
-#define NUM_DMA_BUFFERS				4
-#define NUM_DMA_DESCRIPTORS			256
-
-struct hpdi_private {
-	void __iomem *plx9080_mmio;
-	uint32_t *dio_buffer[NUM_DMA_BUFFERS];	/* dma buffers */
-	/* physical addresses of dma buffers */
-	dma_addr_t dio_buffer_phys_addr[NUM_DMA_BUFFERS];
-	/*
-	 * array of dma descriptors read by plx9080, allocated to get proper
-	 * alignment
-	 */
-	struct plx_dma_desc *dma_desc;
-	/* physical address of dma descriptor array */
-	dma_addr_t dma_desc_phys_addr;
-	unsigned int num_dma_descriptors;
-	/* pointer to start of buffers indexed by descriptor */
-	uint32_t *desc_dio_buffer[NUM_DMA_DESCRIPTORS];
-	/* index of the dma descriptor that is currently being used */
-	unsigned int dma_desc_index;
-	unsigned int tx_fifo_size;
-	unsigned int rx_fifo_size;
-	unsigned long dio_count;
-	/* number of bytes at which to generate COMEDI_CB_BLOCK events */
-	unsigned int block_size;
-};
-
-static void gsc_hpdi_drain_dma(struct comedi_device *dev, unsigned int channel)
-{
-	struct hpdi_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int idx;
-	unsigned int start;
-	unsigned int desc;
-	unsigned int size;
-	unsigned int next;
-
-	if (channel)
-		next = readl(devpriv->plx9080_mmio + PLX_DMA1_PCI_ADDRESS_REG);
-	else
-		next = readl(devpriv->plx9080_mmio + PLX_DMA0_PCI_ADDRESS_REG);
-
-	idx = devpriv->dma_desc_index;
-	start = le32_to_cpu(devpriv->dma_desc[idx].pci_start_addr);
-	/* loop until we have read all the full buffers */
-	for (desc = 0; (next < start || next >= start + devpriv->block_size) &&
-	     desc < devpriv->num_dma_descriptors; desc++) {
-		/* transfer data from dma buffer to comedi buffer */
-		size = devpriv->block_size / sizeof(uint32_t);
-		if (cmd->stop_src == TRIG_COUNT) {
-			if (size > devpriv->dio_count)
-				size = devpriv->dio_count;
-			devpriv->dio_count -= size;
-		}
-		comedi_buf_write_samples(s, devpriv->desc_dio_buffer[idx],
-					 size);
-		idx++;
-		idx %= devpriv->num_dma_descriptors;
-		start = le32_to_cpu(devpriv->dma_desc[idx].pci_start_addr);
-
-		devpriv->dma_desc_index = idx;
-	}
-	/* XXX check for buffer overrun somehow */
-}
-
-static irqreturn_t gsc_hpdi_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct hpdi_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	uint32_t hpdi_intr_status, hpdi_board_status;
-	uint32_t plx_status;
-	uint32_t plx_bits;
-	uint8_t dma0_status, dma1_status;
-	unsigned long flags;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	plx_status = readl(devpriv->plx9080_mmio + PLX_INTRCS_REG);
-	if ((plx_status & (ICS_DMA0_A | ICS_DMA1_A | ICS_LIA)) == 0)
-		return IRQ_NONE;
-
-	hpdi_intr_status = readl(dev->mmio + INTERRUPT_STATUS_REG);
-	hpdi_board_status = readl(dev->mmio + BOARD_STATUS_REG);
-
-	if (hpdi_intr_status)
-		writel(hpdi_intr_status, dev->mmio + INTERRUPT_STATUS_REG);
-
-	/* spin lock makes sure no one else changes plx dma control reg */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	dma0_status = readb(devpriv->plx9080_mmio + PLX_DMA0_CS_REG);
-	if (plx_status & ICS_DMA0_A) {
-		/* dma chan 0 interrupt */
-		writeb((dma0_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT,
-		       devpriv->plx9080_mmio + PLX_DMA0_CS_REG);
-
-		if (dma0_status & PLX_DMA_EN_BIT)
-			gsc_hpdi_drain_dma(dev, 0);
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/* spin lock makes sure no one else changes plx dma control reg */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	dma1_status = readb(devpriv->plx9080_mmio + PLX_DMA1_CS_REG);
-	if (plx_status & ICS_DMA1_A) {
-		/* XXX */ /* dma chan 1 interrupt */
-		writeb((dma1_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT,
-		       devpriv->plx9080_mmio + PLX_DMA1_CS_REG);
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/* clear possible plx9080 interrupt sources */
-	if (plx_status & ICS_LDIA) {
-		/* clear local doorbell interrupt */
-		plx_bits = readl(devpriv->plx9080_mmio + PLX_DBR_OUT_REG);
-		writel(plx_bits, devpriv->plx9080_mmio + PLX_DBR_OUT_REG);
-	}
-
-	if (hpdi_board_status & RX_OVERRUN_BIT) {
-		dev_err(dev->class_dev, "rx fifo overrun\n");
-		async->events |= COMEDI_CB_ERROR;
-	}
-
-	if (hpdi_board_status & RX_UNDERRUN_BIT) {
-		dev_err(dev->class_dev, "rx fifo underrun\n");
-		async->events |= COMEDI_CB_ERROR;
-	}
-
-	if (devpriv->dio_count == 0)
-		async->events |= COMEDI_CB_EOA;
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static void gsc_hpdi_abort_dma(struct comedi_device *dev, unsigned int channel)
-{
-	struct hpdi_private *devpriv = dev->private;
-	unsigned long flags;
-
-	/* spinlock for plx dma control/status reg */
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	plx9080_abort_dma(devpriv->plx9080_mmio, channel);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-static int gsc_hpdi_cancel(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	writel(0, dev->mmio + BOARD_CONTROL_REG);
-	writel(0, dev->mmio + INTERRUPT_CONTROL_REG);
-
-	gsc_hpdi_abort_dma(dev, 0);
-
-	return 0;
-}
-
-static int gsc_hpdi_cmd(struct comedi_device *dev,
-			struct comedi_subdevice *s)
-{
-	struct hpdi_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned long flags;
-	uint32_t bits;
-
-	if (s->io_bits)
-		return -EINVAL;
-
-	writel(RX_FIFO_RESET_BIT, dev->mmio + BOARD_CONTROL_REG);
-
-	gsc_hpdi_abort_dma(dev, 0);
-
-	devpriv->dma_desc_index = 0;
-
-	/*
-	 * These register are supposedly unused during chained dma,
-	 * but I have found that left over values from last operation
-	 * occasionally cause problems with transfer of first dma
-	 * block.  Initializing them to zero seems to fix the problem.
-	 */
-	writel(0, devpriv->plx9080_mmio + PLX_DMA0_TRANSFER_SIZE_REG);
-	writel(0, devpriv->plx9080_mmio + PLX_DMA0_PCI_ADDRESS_REG);
-	writel(0, devpriv->plx9080_mmio + PLX_DMA0_LOCAL_ADDRESS_REG);
-
-	/* give location of first dma descriptor */
-	bits = devpriv->dma_desc_phys_addr | PLX_DESC_IN_PCI_BIT |
-	       PLX_INTR_TERM_COUNT | PLX_XFER_LOCAL_TO_PCI;
-	writel(bits, devpriv->plx9080_mmio + PLX_DMA0_DESCRIPTOR_REG);
-
-	/* enable dma transfer */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT | PLX_CLEAR_DMA_INTR_BIT,
-	       devpriv->plx9080_mmio + PLX_DMA0_CS_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		devpriv->dio_count = cmd->stop_arg;
-	else
-		devpriv->dio_count = 1;
-
-	/* clear over/under run status flags */
-	writel(RX_UNDERRUN_BIT | RX_OVERRUN_BIT, dev->mmio + BOARD_STATUS_REG);
-
-	/* enable interrupts */
-	writel(RX_FULL_INTR, dev->mmio + INTERRUPT_CONTROL_REG);
-
-	writel(RX_ENABLE_BIT, dev->mmio + BOARD_CONTROL_REG);
-
-	return 0;
-}
-
-static int gsc_hpdi_check_chanlist(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_cmd *cmd)
-{
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if (chan != i) {
-			dev_dbg(dev->class_dev,
-				"chanlist must be ch 0 to 31 in order\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int gsc_hpdi_cmd_test(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	if (s->io_bits)
-		return -EINVAL;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (!cmd->chanlist_len || !cmd->chanlist) {
-		cmd->chanlist_len = 32;
-		err |= -EINVAL;
-	}
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= gsc_hpdi_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-/* setup dma descriptors so a link completes every 'len' bytes */
-static int gsc_hpdi_setup_dma_descriptors(struct comedi_device *dev,
-					  unsigned int len)
-{
-	struct hpdi_private *devpriv = dev->private;
-	dma_addr_t phys_addr = devpriv->dma_desc_phys_addr;
-	uint32_t next_bits = PLX_DESC_IN_PCI_BIT | PLX_INTR_TERM_COUNT |
-			     PLX_XFER_LOCAL_TO_PCI;
-	unsigned int offset = 0;
-	unsigned int idx = 0;
-	unsigned int i;
-
-	if (len > DMA_BUFFER_SIZE)
-		len = DMA_BUFFER_SIZE;
-	len -= len % sizeof(uint32_t);
-	if (len == 0)
-		return -EINVAL;
-
-	for (i = 0; i < NUM_DMA_DESCRIPTORS && idx < NUM_DMA_BUFFERS; i++) {
-		devpriv->dma_desc[i].pci_start_addr =
-		    cpu_to_le32(devpriv->dio_buffer_phys_addr[idx] + offset);
-		devpriv->dma_desc[i].local_start_addr = cpu_to_le32(FIFO_REG);
-		devpriv->dma_desc[i].transfer_size = cpu_to_le32(len);
-		devpriv->dma_desc[i].next = cpu_to_le32((phys_addr +
-			(i + 1) * sizeof(devpriv->dma_desc[0])) | next_bits);
-
-		devpriv->desc_dio_buffer[i] = devpriv->dio_buffer[idx] +
-					      (offset / sizeof(uint32_t));
-
-		offset += len;
-		if (len + offset > DMA_BUFFER_SIZE) {
-			offset = 0;
-			idx++;
-		}
-	}
-	devpriv->num_dma_descriptors = i;
-	/* fix last descriptor to point back to first */
-	devpriv->dma_desc[i - 1].next = cpu_to_le32(phys_addr | next_bits);
-
-	devpriv->block_size = len;
-
-	return len;
-}
-
-static int gsc_hpdi_dio_insn_config(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	int ret;
-
-	switch (data[0]) {
-	case INSN_CONFIG_BLOCK_SIZE:
-		ret = gsc_hpdi_setup_dma_descriptors(dev, data[1]);
-		if (ret)
-			return ret;
-
-		data[1] = ret;
-		break;
-	default:
-		ret = comedi_dio_insn_config(dev, s, insn, data, 0xffffffff);
-		if (ret)
-			return ret;
-		break;
-	}
-
-	return insn->n;
-}
-
-static void gsc_hpdi_free_dma(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct hpdi_private *devpriv = dev->private;
-	int i;
-
-	if (!devpriv)
-		return;
-
-	/* free pci dma buffers */
-	for (i = 0; i < NUM_DMA_BUFFERS; i++) {
-		if (devpriv->dio_buffer[i])
-			pci_free_consistent(pcidev,
-					    DMA_BUFFER_SIZE,
-					    devpriv->dio_buffer[i],
-					    devpriv->dio_buffer_phys_addr[i]);
-	}
-	/* free dma descriptors */
-	if (devpriv->dma_desc)
-		pci_free_consistent(pcidev,
-				    sizeof(struct plx_dma_desc) *
-				    NUM_DMA_DESCRIPTORS,
-				    devpriv->dma_desc,
-				    devpriv->dma_desc_phys_addr);
-}
-
-static int gsc_hpdi_init(struct comedi_device *dev)
-{
-	struct hpdi_private *devpriv = dev->private;
-	uint32_t plx_intcsr_bits;
-
-	/* wait 10usec after reset before accessing fifos */
-	writel(BOARD_RESET_BIT, dev->mmio + BOARD_CONTROL_REG);
-	usleep_range(10, 1000);
-
-	writel(ALMOST_EMPTY_BITS(32) | ALMOST_FULL_BITS(32),
-	       dev->mmio + RX_PROG_ALMOST_REG);
-	writel(ALMOST_EMPTY_BITS(32) | ALMOST_FULL_BITS(32),
-	       dev->mmio + TX_PROG_ALMOST_REG);
-
-	devpriv->tx_fifo_size = readl(dev->mmio + TX_FIFO_SIZE_REG) &
-				FIFO_SIZE_MASK;
-	devpriv->rx_fifo_size = readl(dev->mmio + RX_FIFO_SIZE_REG) &
-				FIFO_SIZE_MASK;
-
-	writel(0, dev->mmio + INTERRUPT_CONTROL_REG);
-
-	/* enable interrupts */
-	plx_intcsr_bits =
-	    ICS_AERR | ICS_PERR | ICS_PIE | ICS_PLIE | ICS_PAIE | ICS_LIE |
-	    ICS_DMA0_E;
-	writel(plx_intcsr_bits, devpriv->plx9080_mmio + PLX_INTRCS_REG);
-
-	return 0;
-}
-
-static void gsc_hpdi_init_plx9080(struct comedi_device *dev)
-{
-	struct hpdi_private *devpriv = dev->private;
-	uint32_t bits;
-	void __iomem *plx_iobase = devpriv->plx9080_mmio;
-
-#ifdef __BIG_ENDIAN
-	bits = BIGEND_DMA0 | BIGEND_DMA1;
-#else
-	bits = 0;
-#endif
-	writel(bits, devpriv->plx9080_mmio + PLX_BIGEND_REG);
-
-	writel(0, devpriv->plx9080_mmio + PLX_INTRCS_REG);
-
-	gsc_hpdi_abort_dma(dev, 0);
-	gsc_hpdi_abort_dma(dev, 1);
-
-	/* configure dma0 mode */
-	bits = 0;
-	/* enable ready input */
-	bits |= PLX_DMA_EN_READYIN_BIT;
-	/* enable dma chaining */
-	bits |= PLX_EN_CHAIN_BIT;
-	/*
-	 * enable interrupt on dma done
-	 * (probably don't need this, since chain never finishes)
-	 */
-	bits |= PLX_EN_DMA_DONE_INTR_BIT;
-	/*
-	 * don't increment local address during transfers
-	 * (we are transferring from a fixed fifo register)
-	 */
-	bits |= PLX_LOCAL_ADDR_CONST_BIT;
-	/* route dma interrupt to pci bus */
-	bits |= PLX_DMA_INTR_PCI_BIT;
-	/* enable demand mode */
-	bits |= PLX_DEMAND_MODE_BIT;
-	/* enable local burst mode */
-	bits |= PLX_DMA_LOCAL_BURST_EN_BIT;
-	bits |= PLX_LOCAL_BUS_32_WIDE_BITS;
-	writel(bits, plx_iobase + PLX_DMA0_MODE_REG);
-}
-
-static int gsc_hpdi_auto_attach(struct comedi_device *dev,
-				unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct hpdi_private *devpriv;
-	struct comedi_subdevice *s;
-	int i;
-	int retval;
-
-	dev->board_name = "pci-hpdi32";
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	retval = comedi_pci_enable(dev);
-	if (retval)
-		return retval;
-	pci_set_master(pcidev);
-
-	devpriv->plx9080_mmio = pci_ioremap_bar(pcidev, 0);
-	dev->mmio = pci_ioremap_bar(pcidev, 2);
-	if (!devpriv->plx9080_mmio || !dev->mmio) {
-		dev_warn(dev->class_dev, "failed to remap io memory\n");
-		return -ENOMEM;
-	}
-
-	gsc_hpdi_init_plx9080(dev);
-
-	/* get irq */
-	if (request_irq(pcidev->irq, gsc_hpdi_interrupt, IRQF_SHARED,
-			dev->board_name, dev)) {
-		dev_warn(dev->class_dev,
-			 "unable to allocate irq %u\n", pcidev->irq);
-		return -EINVAL;
-	}
-	dev->irq = pcidev->irq;
-
-	dev_dbg(dev->class_dev, " irq %u\n", dev->irq);
-
-	/* allocate pci dma buffers */
-	for (i = 0; i < NUM_DMA_BUFFERS; i++) {
-		devpriv->dio_buffer[i] =
-		    pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE,
-					 &devpriv->dio_buffer_phys_addr[i]);
-	}
-	/* allocate dma descriptors */
-	devpriv->dma_desc = pci_alloc_consistent(pcidev,
-						 sizeof(struct plx_dma_desc) *
-						 NUM_DMA_DESCRIPTORS,
-						 &devpriv->dma_desc_phys_addr);
-	if (devpriv->dma_desc_phys_addr & 0xf) {
-		dev_warn(dev->class_dev,
-			 " dma descriptors not quad-word aligned (bug)\n");
-		return -EIO;
-	}
-
-	retval = gsc_hpdi_setup_dma_descriptors(dev, 0x1000);
-	if (retval < 0)
-		return retval;
-
-	retval = comedi_alloc_subdevices(dev, 1);
-	if (retval)
-		return retval;
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL |
-			  SDF_CMD_READ;
-	s->n_chan	= 32;
-	s->len_chanlist	= 32;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_config	= gsc_hpdi_dio_insn_config;
-	s->do_cmd	= gsc_hpdi_cmd;
-	s->do_cmdtest	= gsc_hpdi_cmd_test;
-	s->cancel	= gsc_hpdi_cancel;
-
-	return gsc_hpdi_init(dev);
-}
-
-static void gsc_hpdi_detach(struct comedi_device *dev)
-{
-	struct hpdi_private *devpriv = dev->private;
-
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-	if (devpriv) {
-		if (devpriv->plx9080_mmio) {
-			writel(0, devpriv->plx9080_mmio + PLX_INTRCS_REG);
-			iounmap(devpriv->plx9080_mmio);
-		}
-		if (dev->mmio)
-			iounmap(dev->mmio);
-	}
-	comedi_pci_disable(dev);
-	gsc_hpdi_free_dma(dev);
-}
-
-static struct comedi_driver gsc_hpdi_driver = {
-	.driver_name	= "gsc_hpdi",
-	.module		= THIS_MODULE,
-	.auto_attach	= gsc_hpdi_auto_attach,
-	.detach		= gsc_hpdi_detach,
-};
-
-static int gsc_hpdi_pci_probe(struct pci_dev *dev,
-			      const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &gsc_hpdi_driver, id->driver_data);
-}
-
-static const struct pci_device_id gsc_hpdi_pci_table[] = {
-	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9080,
-			 PCI_VENDOR_ID_PLX, 0x2400) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, gsc_hpdi_pci_table);
-
-static struct pci_driver gsc_hpdi_pci_driver = {
-	.name		= "gsc_hpdi",
-	.id_table	= gsc_hpdi_pci_table,
-	.probe		= gsc_hpdi_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(gsc_hpdi_driver, gsc_hpdi_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for General Standards PCI-HPDI32/PMC-HPDI32");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
deleted file mode 100644
index 1e104ebf8057..000000000000
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ /dev/null
@@ -1,568 +0,0 @@
-/*
-    comedi/drivers/icp_multi.c
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2002 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-/*
-Driver: icp_multi
-Description: Inova ICP_MULTI
-Author: Anne Smorthit <anne.smorthit@sfwte.ch>
-Devices: [Inova] ICP_MULTI (icp_multi)
-Status: works
-
-The driver works for analog input and output and digital input and output.
-It does not work with interrupts or with the counters.  Currently no support
-for DMA.
-
-It has 16 single-ended or 8 differential Analogue Input channels with 12-bit
-resolution.  Ranges : 5V, 10V, +/-5V, +/-10V, 0..20mA and 4..20mA.  Input
-ranges can be individually programmed for each channel.  Voltage or current
-measurement is selected by jumper.
-
-There are 4 x 12-bit Analogue Outputs.  Ranges : 5V, 10V, +/-5V, +/-10V
-
-16 x Digital Inputs, 24V
-
-8 x Digital Outputs, 24V, 1A
-
-4 x 16-bit counters
-
-Configuration options: not applicable, uses PCI auto config
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#define ICP_MULTI_ADC_CSR	0	/* R/W: ADC command/status register */
-#define ICP_MULTI_AI		2	/* R:   Analogue input data */
-#define ICP_MULTI_DAC_CSR	4	/* R/W: DAC command/status register */
-#define ICP_MULTI_AO		6	/* R/W: Analogue output data */
-#define ICP_MULTI_DI		8	/* R/W: Digital inputs */
-#define ICP_MULTI_DO		0x0A	/* R/W: Digital outputs */
-#define ICP_MULTI_INT_EN	0x0C	/* R/W: Interrupt enable register */
-#define ICP_MULTI_INT_STAT	0x0E	/* R/W: Interrupt status register */
-#define ICP_MULTI_CNTR0		0x10	/* R/W: Counter 0 */
-#define ICP_MULTI_CNTR1		0x12	/* R/W: counter 1 */
-#define ICP_MULTI_CNTR2		0x14	/* R/W: Counter 2 */
-#define ICP_MULTI_CNTR3		0x16	/* R/W: Counter 3 */
-
-/*  Define bits from ADC command/status register */
-#define	ADC_ST		0x0001	/* Start ADC */
-#define	ADC_BSY		0x0001	/* ADC busy */
-#define ADC_BI		0x0010	/* Bipolar input range 1 = bipolar */
-#define ADC_RA		0x0020	/* Input range 0 = 5V, 1 = 10V */
-#define	ADC_DI		0x0040	/* Differential input mode 1 = differential */
-
-/*  Define bits from DAC command/status register */
-#define	DAC_ST		0x0001	/* Start DAC */
-#define DAC_BSY		0x0001	/* DAC busy */
-#define	DAC_BI		0x0010	/* Bipolar input range 1 = bipolar */
-#define	DAC_RA		0x0020	/* Input range 0 = 5V, 1 = 10V */
-
-/*  Define bits from interrupt enable/status registers */
-#define	ADC_READY	0x0001	/* A/d conversion ready interrupt */
-#define	DAC_READY	0x0002	/* D/a conversion ready interrupt */
-#define	DOUT_ERROR	0x0004	/* Digital output error interrupt */
-#define	DIN_STATUS	0x0008	/* Digital input status change interrupt */
-#define	CIE0		0x0010	/* Counter 0 overrun interrupt */
-#define	CIE1		0x0020	/* Counter 1 overrun interrupt */
-#define	CIE2		0x0040	/* Counter 2 overrun interrupt */
-#define	CIE3		0x0080	/* Counter 3 overrun interrupt */
-
-/*  Useful definitions */
-#define	Status_IRQ	0x00ff	/*  All interrupts */
-
-/*  Define analogue range */
-static const struct comedi_lrange range_analog = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(10)
-	}
-};
-
-static const char range_codes_analog[] = { 0x00, 0x20, 0x10, 0x30 };
-
-/*
-==============================================================================
-	Data & Structure declarations
-==============================================================================
-*/
-
-struct icp_multi_private {
-	unsigned int AdcCmdStatus;	/*  ADC Command/Status register */
-	unsigned int DacCmdStatus;	/*  DAC Command/Status register */
-	unsigned int IntEnable;	/*  Interrupt Enable register */
-	unsigned int IntStatus;	/*  Interrupt Status register */
-	unsigned int act_chanlist[32];	/*  list of scanned channel */
-	unsigned char act_chanlist_len;	/*  len of scanlist */
-	unsigned char act_chanlist_pos;	/*  actual position in MUX list */
-	unsigned int *ai_chanlist;	/*  actaul chanlist */
-	unsigned int do_data;	/*  Remember digital output data */
-};
-
-static void setup_channel_list(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       unsigned int *chanlist, unsigned int n_chan)
-{
-	struct icp_multi_private *devpriv = dev->private;
-	unsigned int i, range, chanprog;
-	unsigned int diff;
-
-	devpriv->act_chanlist_len = n_chan;
-	devpriv->act_chanlist_pos = 0;
-
-	for (i = 0; i < n_chan; i++) {
-		/*  Get channel */
-		chanprog = CR_CHAN(chanlist[i]);
-
-		/*  Determine if it is a differential channel (Bit 15  = 1) */
-		if (CR_AREF(chanlist[i]) == AREF_DIFF) {
-			diff = 1;
-			chanprog &= 0x0007;
-		} else {
-			diff = 0;
-			chanprog &= 0x000f;
-		}
-
-		/*  Clear channel, range and input mode bits
-		 *  in A/D command/status register */
-		devpriv->AdcCmdStatus &= 0xf00f;
-
-		/*  Set channel number and differential mode status bit */
-		if (diff) {
-			/*  Set channel number, bits 9-11 & mode, bit 6 */
-			devpriv->AdcCmdStatus |= (chanprog << 9);
-			devpriv->AdcCmdStatus |= ADC_DI;
-		} else
-			/*  Set channel number, bits 8-11 */
-			devpriv->AdcCmdStatus |= (chanprog << 8);
-
-		/*  Get range for current channel */
-		range = range_codes_analog[CR_RANGE(chanlist[i])];
-		/*  Set range. bits 4-5 */
-		devpriv->AdcCmdStatus |= range;
-
-		/* Output channel, range, mode to ICP Multi */
-		writew(devpriv->AdcCmdStatus, dev->mmio + ICP_MULTI_ADC_CSR);
-	}
-}
-
-static int icp_multi_ai_eoc(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned long context)
-{
-	unsigned int status;
-
-	status = readw(dev->mmio + ICP_MULTI_ADC_CSR);
-	if ((status & ADC_BSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int icp_multi_insn_read_ai(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct icp_multi_private *devpriv = dev->private;
-	int ret = 0;
-	int n;
-
-	/*  Disable A/D conversion ready interrupt */
-	devpriv->IntEnable &= ~ADC_READY;
-	writew(devpriv->IntEnable, dev->mmio + ICP_MULTI_INT_EN);
-
-	/*  Clear interrupt status */
-	devpriv->IntStatus |= ADC_READY;
-	writew(devpriv->IntStatus, dev->mmio + ICP_MULTI_INT_STAT);
-
-	/*  Set up appropriate channel, mode and range data, for specified ch */
-	setup_channel_list(dev, s, &insn->chanspec, 1);
-
-	for (n = 0; n < insn->n; n++) {
-		/*  Set start ADC bit */
-		devpriv->AdcCmdStatus |= ADC_ST;
-		writew(devpriv->AdcCmdStatus, dev->mmio + ICP_MULTI_ADC_CSR);
-		devpriv->AdcCmdStatus &= ~ADC_ST;
-
-		udelay(1);
-
-		/*  Wait for conversion to complete, or get fed up waiting */
-		ret = comedi_timeout(dev, s, insn, icp_multi_ai_eoc, 0);
-		if (ret)
-			break;
-
-		data[n] = (readw(dev->mmio + ICP_MULTI_AI) >> 4) & 0x0fff;
-	}
-
-	/*  Disable interrupt */
-	devpriv->IntEnable &= ~ADC_READY;
-	writew(devpriv->IntEnable, dev->mmio + ICP_MULTI_INT_EN);
-
-	/*  Clear interrupt status */
-	devpriv->IntStatus |= ADC_READY;
-	writew(devpriv->IntStatus, dev->mmio + ICP_MULTI_INT_STAT);
-
-	return ret ? ret : n;
-}
-
-static int icp_multi_ao_eoc(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned long context)
-{
-	unsigned int status;
-
-	status = readw(dev->mmio + ICP_MULTI_DAC_CSR);
-	if ((status & DAC_BSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int icp_multi_ao_insn_write(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct icp_multi_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int i;
-
-	/*  Disable D/A conversion ready interrupt */
-	devpriv->IntEnable &= ~DAC_READY;
-	writew(devpriv->IntEnable, dev->mmio + ICP_MULTI_INT_EN);
-
-	/*  Clear interrupt status */
-	devpriv->IntStatus |= DAC_READY;
-	writew(devpriv->IntStatus, dev->mmio + ICP_MULTI_INT_STAT);
-
-	/*  Set up range and channel data */
-	/*  Bit 4 = 1 : Bipolar */
-	/*  Bit 5 = 0 : 5V */
-	/*  Bit 5 = 1 : 10V */
-	/*  Bits 8-9 : Channel number */
-	devpriv->DacCmdStatus &= 0xfccf;
-	devpriv->DacCmdStatus |= range_codes_analog[range];
-	devpriv->DacCmdStatus |= (chan << 8);
-
-	writew(devpriv->DacCmdStatus, dev->mmio + ICP_MULTI_DAC_CSR);
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-		int ret;
-
-		/*  Wait for analogue output data register to be
-		 *  ready for new data, or get fed up waiting */
-		ret = comedi_timeout(dev, s, insn, icp_multi_ao_eoc, 0);
-		if (ret) {
-			/*  Disable interrupt */
-			devpriv->IntEnable &= ~DAC_READY;
-			writew(devpriv->IntEnable,
-			       dev->mmio + ICP_MULTI_INT_EN);
-
-			/*  Clear interrupt status */
-			devpriv->IntStatus |= DAC_READY;
-			writew(devpriv->IntStatus,
-			       dev->mmio + ICP_MULTI_INT_STAT);
-
-			return ret;
-		}
-
-		writew(val, dev->mmio + ICP_MULTI_AO);
-
-		/*  Set DAC_ST bit to write the data to selected channel */
-		devpriv->DacCmdStatus |= DAC_ST;
-		writew(devpriv->DacCmdStatus, dev->mmio + ICP_MULTI_DAC_CSR);
-		devpriv->DacCmdStatus &= ~DAC_ST;
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int icp_multi_insn_bits_di(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	data[1] = readw(dev->mmio + ICP_MULTI_DI);
-
-	return insn->n;
-}
-
-static int icp_multi_insn_bits_do(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		writew(s->state, dev->mmio + ICP_MULTI_DO);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int icp_multi_insn_read_ctr(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn, unsigned int *data)
-{
-	return 0;
-}
-
-static int icp_multi_insn_write_ctr(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	return 0;
-}
-
-static irqreturn_t interrupt_service_icp_multi(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	int int_no;
-
-	/*  Is this interrupt from our board? */
-	int_no = readw(dev->mmio + ICP_MULTI_INT_STAT) & Status_IRQ;
-	if (!int_no)
-		/*  No, exit */
-		return IRQ_NONE;
-
-	/*  Determine which interrupt is active & handle it */
-	switch (int_no) {
-	case ADC_READY:
-		break;
-	case DAC_READY:
-		break;
-	case DOUT_ERROR:
-		break;
-	case DIN_STATUS:
-		break;
-	case CIE0:
-		break;
-	case CIE1:
-		break;
-	case CIE2:
-		break;
-	case CIE3:
-		break;
-	default:
-		break;
-	}
-
-	return IRQ_HANDLED;
-}
-
-#if 0
-static int check_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      unsigned int *chanlist, unsigned int n_chan)
-{
-	unsigned int i;
-
-	/*  Check that we at least have one channel to check */
-	if (n_chan < 1) {
-		dev_err(dev->class_dev, "range/channel list is empty!\n");
-		return 0;
-	}
-	/*  Check all channels */
-	for (i = 0; i < n_chan; i++) {
-		/*  Check that channel number is < maximum */
-		if (CR_AREF(chanlist[i]) == AREF_DIFF) {
-			if (CR_CHAN(chanlist[i]) > (s->nchan / 2)) {
-				dev_err(dev->class_dev,
-					"Incorrect differential ai ch-nr\n");
-				return 0;
-			}
-		} else {
-			if (CR_CHAN(chanlist[i]) > s->n_chan) {
-				dev_err(dev->class_dev,
-					"Incorrect ai channel number\n");
-				return 0;
-			}
-		}
-	}
-	return 1;
-}
-#endif
-
-static int icp_multi_reset(struct comedi_device *dev)
-{
-	struct icp_multi_private *devpriv = dev->private;
-	unsigned int i;
-
-	/*  Clear INT enables and requests */
-	writew(0, dev->mmio + ICP_MULTI_INT_EN);
-	writew(0x00ff, dev->mmio + ICP_MULTI_INT_STAT);
-
-	/* Set DACs to 0..5V range and 0V output */
-	for (i = 0; i < 4; i++) {
-		devpriv->DacCmdStatus &= 0xfcce;
-
-		/*  Set channel number */
-		devpriv->DacCmdStatus |= (i << 8);
-
-		/*  Output 0V */
-		writew(0, dev->mmio + ICP_MULTI_AO);
-
-		/*  Set start conversion bit */
-		devpriv->DacCmdStatus |= DAC_ST;
-
-		/*  Output to command / status register */
-		writew(devpriv->DacCmdStatus, dev->mmio + ICP_MULTI_DAC_CSR);
-
-		/*  Delay to allow DAC time to recover */
-		udelay(1);
-	}
-
-	/* Digital outputs to 0 */
-	writew(0, dev->mmio + ICP_MULTI_DO);
-
-	return 0;
-}
-
-static int icp_multi_auto_attach(struct comedi_device *dev,
-				 unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct icp_multi_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 2);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 5);
-	if (ret)
-		return ret;
-
-	icp_multi_reset(dev);
-
-	if (pcidev->irq) {
-		ret = request_irq(pcidev->irq, interrupt_service_icp_multi,
-				  IRQF_SHARED, dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;
-	s->n_chan = 16;
-	s->maxdata = 0x0fff;
-	s->len_chanlist = 16;
-	s->range_table = &range_analog;
-	s->insn_read = icp_multi_insn_read_ai;
-
-	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
-	s->n_chan = 4;
-	s->maxdata = 0x0fff;
-	s->len_chanlist = 4;
-	s->range_table = &range_analog;
-	s->insn_write = icp_multi_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->len_chanlist = 16;
-	s->range_table = &range_digital;
-	s->insn_bits = icp_multi_insn_bits_di;
-
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->len_chanlist = 8;
-	s->range_table = &range_digital;
-	s->insn_bits = icp_multi_insn_bits_do;
-
-	s = &dev->subdevices[4];
-	s->type = COMEDI_SUBD_COUNTER;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 4;
-	s->maxdata = 0xffff;
-	s->len_chanlist = 4;
-	s->state = 0;
-	s->insn_read = icp_multi_insn_read_ctr;
-	s->insn_write = icp_multi_insn_write_ctr;
-
-	return 0;
-}
-
-static void icp_multi_detach(struct comedi_device *dev)
-{
-	if (dev->mmio)
-		icp_multi_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver icp_multi_driver = {
-	.driver_name	= "icp_multi",
-	.module		= THIS_MODULE,
-	.auto_attach	= icp_multi_auto_attach,
-	.detach		= icp_multi_detach,
-};
-
-static int icp_multi_pci_probe(struct pci_dev *dev,
-			       const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &icp_multi_driver, id->driver_data);
-}
-
-static const struct pci_device_id icp_multi_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ICP, 0x8000) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, icp_multi_pci_table);
-
-static struct pci_driver icp_multi_pci_driver = {
-	.name		= "icp_multi",
-	.id_table	= icp_multi_pci_table,
-	.probe		= icp_multi_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(icp_multi_driver, icp_multi_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c b/drivers/staging/comedi/drivers/ii_pci20kc.c
deleted file mode 100644
index 14ef1f67dd42..000000000000
--- a/drivers/staging/comedi/drivers/ii_pci20kc.c
+++ /dev/null
@@ -1,527 +0,0 @@
-/*
- * ii_pci20kc.c
- * Driver for Intelligent Instruments PCI-20001C carrier board and modules.
- *
- * Copyright (C) 2000 Markus Kempf <kempf@matsci.uni-sb.de>
- * with suggestions from David Schleef		16.06.2000
- */
-
-/*
- * Driver: ii_pci20kc
- * Description: Intelligent Instruments PCI-20001C carrier board
- * Devices: [Intelligent Instrumentation] PCI-20001C (ii_pci20kc)
- * Author: Markus Kempf <kempf@matsci.uni-sb.de>
- * Status: works
- *
- * Supports the PCI-20001C-1a and PCI-20001C-2a carrier boards. The
- * -2a version has 32 on-board DIO channels. Three add-on modules
- * can be added to the carrier board for additional functionality.
- *
- * Supported add-on modules:
- *	PCI-20006M-1   1 channel, 16-bit analog output module
- *	PCI-20006M-2   2 channel, 16-bit analog output module
- *	PCI-20341M-1A  4 channel, 16-bit analog input module
- *
- * Options:
- *   0   Board base address
- *   1   IRQ (not-used)
- */
-
-#include <linux/module.h>
-#include <linux/io.h>
-#include "../comedidev.h"
-
-/*
- * Register I/O map
- */
-#define II20K_SIZE			0x400
-#define II20K_MOD_OFFSET		0x100
-#define II20K_ID_REG			0x00
-#define II20K_ID_MOD1_EMPTY		(1 << 7)
-#define II20K_ID_MOD2_EMPTY		(1 << 6)
-#define II20K_ID_MOD3_EMPTY		(1 << 5)
-#define II20K_ID_MASK			0x1f
-#define II20K_ID_PCI20001C_1A		0x1b	/* no on-board DIO */
-#define II20K_ID_PCI20001C_2A		0x1d	/* on-board DIO */
-#define II20K_MOD_STATUS_REG		0x40
-#define II20K_MOD_STATUS_IRQ_MOD1	(1 << 7)
-#define II20K_MOD_STATUS_IRQ_MOD2	(1 << 6)
-#define II20K_MOD_STATUS_IRQ_MOD3	(1 << 5)
-#define II20K_DIO0_REG			0x80
-#define II20K_DIO1_REG			0x81
-#define II20K_DIR_ENA_REG		0x82
-#define II20K_DIR_DIO3_OUT		(1 << 7)
-#define II20K_DIR_DIO2_OUT		(1 << 6)
-#define II20K_BUF_DISAB_DIO3		(1 << 5)
-#define II20K_BUF_DISAB_DIO2		(1 << 4)
-#define II20K_DIR_DIO1_OUT		(1 << 3)
-#define II20K_DIR_DIO0_OUT		(1 << 2)
-#define II20K_BUF_DISAB_DIO1		(1 << 1)
-#define II20K_BUF_DISAB_DIO0		(1 << 0)
-#define II20K_CTRL01_REG		0x83
-#define II20K_CTRL01_SET		(1 << 7)
-#define II20K_CTRL01_DIO0_IN		(1 << 4)
-#define II20K_CTRL01_DIO1_IN		(1 << 1)
-#define II20K_DIO2_REG			0xc0
-#define II20K_DIO3_REG			0xc1
-#define II20K_CTRL23_REG		0xc3
-#define II20K_CTRL23_SET		(1 << 7)
-#define II20K_CTRL23_DIO2_IN		(1 << 4)
-#define II20K_CTRL23_DIO3_IN		(1 << 1)
-
-#define II20K_ID_PCI20006M_1		0xe2	/* 1 AO channels */
-#define II20K_ID_PCI20006M_2		0xe3	/* 2 AO channels */
-#define II20K_AO_STRB_REG(x)		(0x0b + ((x) * 0x08))
-#define II20K_AO_LSB_REG(x)		(0x0d + ((x) * 0x08))
-#define II20K_AO_MSB_REG(x)		(0x0e + ((x) * 0x08))
-#define II20K_AO_STRB_BOTH_REG		0x1b
-
-#define II20K_ID_PCI20341M_1		0x77	/* 4 AI channels */
-#define II20K_AI_STATUS_CMD_REG		0x01
-#define II20K_AI_STATUS_CMD_BUSY	(1 << 7)
-#define II20K_AI_STATUS_CMD_HW_ENA	(1 << 1)
-#define II20K_AI_STATUS_CMD_EXT_START	(1 << 0)
-#define II20K_AI_LSB_REG		0x02
-#define II20K_AI_MSB_REG		0x03
-#define II20K_AI_PACER_RESET_REG	0x04
-#define II20K_AI_16BIT_DATA_REG		0x06
-#define II20K_AI_CONF_REG		0x10
-#define II20K_AI_CONF_ENA		(1 << 2)
-#define II20K_AI_OPT_REG		0x11
-#define II20K_AI_OPT_TRIG_ENA		(1 << 5)
-#define II20K_AI_OPT_TRIG_INV		(1 << 4)
-#define II20K_AI_OPT_TIMEBASE(x)	(((x) & 0x3) << 1)
-#define II20K_AI_OPT_BURST_MODE		(1 << 0)
-#define II20K_AI_STATUS_REG		0x12
-#define II20K_AI_STATUS_INT		(1 << 7)
-#define II20K_AI_STATUS_TRIG		(1 << 6)
-#define II20K_AI_STATUS_TRIG_ENA	(1 << 5)
-#define II20K_AI_STATUS_PACER_ERR	(1 << 2)
-#define II20K_AI_STATUS_DATA_ERR	(1 << 1)
-#define II20K_AI_STATUS_SET_TIME_ERR	(1 << 0)
-#define II20K_AI_LAST_CHAN_ADDR_REG	0x13
-#define II20K_AI_CUR_ADDR_REG		0x14
-#define II20K_AI_SET_TIME_REG		0x15
-#define II20K_AI_DELAY_LSB_REG		0x16
-#define II20K_AI_DELAY_MSB_REG		0x17
-#define II20K_AI_CHAN_ADV_REG		0x18
-#define II20K_AI_CHAN_RESET_REG		0x19
-#define II20K_AI_START_TRIG_REG		0x1a
-#define II20K_AI_COUNT_RESET_REG	0x1b
-#define II20K_AI_CHANLIST_REG		0x80
-#define II20K_AI_CHANLIST_ONBOARD_ONLY	(1 << 5)
-#define II20K_AI_CHANLIST_GAIN(x)	(((x) & 0x3) << 3)
-#define II20K_AI_CHANLIST_MUX_ENA	(1 << 2)
-#define II20K_AI_CHANLIST_CHAN(x)	(((x) & 0x3) << 0)
-#define II20K_AI_CHANLIST_LEN		0x80
-
-/* the AO range is set by jumpers on the 20006M module */
-static const struct comedi_lrange ii20k_ao_ranges = {
-	3, {
-		BIP_RANGE(5),	/* Chan 0 - W1/W3 in   Chan 1 - W2/W4 in  */
-		UNI_RANGE(10),	/* Chan 0 - W1/W3 out  Chan 1 - W2/W4 in  */
-		BIP_RANGE(10)	/* Chan 0 - W1/W3 in   Chan 1 - W2/W4 out */
-	}
-};
-
-static const struct comedi_lrange ii20k_ai_ranges = {
-	4, {
-		BIP_RANGE(5),		/* gain 1 */
-		BIP_RANGE(0.5),		/* gain 10 */
-		BIP_RANGE(0.05),	/* gain 100 */
-		BIP_RANGE(0.025)	/* gain 200 */
-	},
-};
-
-static void __iomem *ii20k_module_iobase(struct comedi_device *dev,
-					 struct comedi_subdevice *s)
-{
-	return dev->mmio + (s->index + 1) * II20K_MOD_OFFSET;
-}
-
-static int ii20k_ao_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	void __iomem *iobase = ii20k_module_iobase(dev, s);
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		/* munge data */
-		val += ((s->maxdata + 1) >> 1);
-		val &= s->maxdata;
-
-		writeb(val & 0xff, iobase + II20K_AO_LSB_REG(chan));
-		writeb((val >> 8) & 0xff, iobase + II20K_AO_MSB_REG(chan));
-		writeb(0x00, iobase + II20K_AO_STRB_REG(chan));
-	}
-
-	return insn->n;
-}
-
-static int ii20k_ai_eoc(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned long context)
-{
-	void __iomem *iobase = ii20k_module_iobase(dev, s);
-	unsigned char status;
-
-	status = readb(iobase + II20K_AI_STATUS_REG);
-	if ((status & II20K_AI_STATUS_INT) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static void ii20k_ai_setup(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   unsigned int chanspec)
-{
-	void __iomem *iobase = ii20k_module_iobase(dev, s);
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned char val;
-
-	/* initialize module */
-	writeb(II20K_AI_CONF_ENA, iobase + II20K_AI_CONF_REG);
-
-	/* software conversion */
-	writeb(0, iobase + II20K_AI_STATUS_CMD_REG);
-
-	/* set the time base for the settling time counter based on the gain */
-	val = (range < 3) ? II20K_AI_OPT_TIMEBASE(0) : II20K_AI_OPT_TIMEBASE(2);
-	writeb(val, iobase + II20K_AI_OPT_REG);
-
-	/* set the settling time counter based on the gain */
-	val = (range < 2) ? 0x58 : (range < 3) ? 0x93 : 0x99;
-	writeb(val, iobase + II20K_AI_SET_TIME_REG);
-
-	/* set number of input channels */
-	writeb(1, iobase + II20K_AI_LAST_CHAN_ADDR_REG);
-
-	/* set the channel list byte */
-	val = II20K_AI_CHANLIST_ONBOARD_ONLY |
-	      II20K_AI_CHANLIST_MUX_ENA |
-	      II20K_AI_CHANLIST_GAIN(range) |
-	      II20K_AI_CHANLIST_CHAN(chan);
-	writeb(val, iobase + II20K_AI_CHANLIST_REG);
-
-	/* reset settling time counter and trigger delay counter */
-	writeb(0, iobase + II20K_AI_COUNT_RESET_REG);
-
-	/* reset channel scanner */
-	writeb(0, iobase + II20K_AI_CHAN_RESET_REG);
-}
-
-static int ii20k_ai_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	void __iomem *iobase = ii20k_module_iobase(dev, s);
-	int ret;
-	int i;
-
-	ii20k_ai_setup(dev, s, insn->chanspec);
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val;
-
-		/* generate a software start convert signal */
-		readb(iobase + II20K_AI_PACER_RESET_REG);
-
-		ret = comedi_timeout(dev, s, insn, ii20k_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		val = readb(iobase + II20K_AI_LSB_REG);
-		val |= (readb(iobase + II20K_AI_MSB_REG) << 8);
-
-		/* munge two's complement data */
-		val += ((s->maxdata + 1) >> 1);
-		val &= s->maxdata;
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static void ii20k_dio_config(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	unsigned char ctrl01 = 0;
-	unsigned char ctrl23 = 0;
-	unsigned char dir_ena = 0;
-
-	/* port 0 - channels 0-7 */
-	if (s->io_bits & 0x000000ff) {
-		/* output port */
-		ctrl01 &= ~II20K_CTRL01_DIO0_IN;
-		dir_ena &= ~II20K_BUF_DISAB_DIO0;
-		dir_ena |= II20K_DIR_DIO0_OUT;
-	} else {
-		/* input port */
-		ctrl01 |= II20K_CTRL01_DIO0_IN;
-		dir_ena &= ~II20K_DIR_DIO0_OUT;
-	}
-
-	/* port 1 - channels 8-15 */
-	if (s->io_bits & 0x0000ff00) {
-		/* output port */
-		ctrl01 &= ~II20K_CTRL01_DIO1_IN;
-		dir_ena &= ~II20K_BUF_DISAB_DIO1;
-		dir_ena |= II20K_DIR_DIO1_OUT;
-	} else {
-		/* input port */
-		ctrl01 |= II20K_CTRL01_DIO1_IN;
-		dir_ena &= ~II20K_DIR_DIO1_OUT;
-	}
-
-	/* port 2 - channels 16-23 */
-	if (s->io_bits & 0x00ff0000) {
-		/* output port */
-		ctrl23 &= ~II20K_CTRL23_DIO2_IN;
-		dir_ena &= ~II20K_BUF_DISAB_DIO2;
-		dir_ena |= II20K_DIR_DIO2_OUT;
-	} else {
-		/* input port */
-		ctrl23 |= II20K_CTRL23_DIO2_IN;
-		dir_ena &= ~II20K_DIR_DIO2_OUT;
-	}
-
-	/* port 3 - channels 24-31 */
-	if (s->io_bits & 0xff000000) {
-		/* output port */
-		ctrl23 &= ~II20K_CTRL23_DIO3_IN;
-		dir_ena &= ~II20K_BUF_DISAB_DIO3;
-		dir_ena |= II20K_DIR_DIO3_OUT;
-	} else {
-		/* input port */
-		ctrl23 |= II20K_CTRL23_DIO3_IN;
-		dir_ena &= ~II20K_DIR_DIO3_OUT;
-	}
-
-	ctrl23 |= II20K_CTRL01_SET;
-	ctrl23 |= II20K_CTRL23_SET;
-
-	/* order is important */
-	writeb(ctrl01, dev->mmio + II20K_CTRL01_REG);
-	writeb(ctrl23, dev->mmio + II20K_CTRL23_REG);
-	writeb(dir_ena, dev->mmio + II20K_DIR_ENA_REG);
-}
-
-static int ii20k_dio_insn_config(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x000000ff;
-	else if (chan < 16)
-		mask = 0x0000ff00;
-	else if (chan < 24)
-		mask = 0x00ff0000;
-	else
-		mask = 0xff000000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	ii20k_dio_config(dev, s);
-
-	return insn->n;
-}
-
-static int ii20k_dio_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int mask;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0x000000ff)
-			writeb((s->state >> 0) & 0xff,
-			       dev->mmio + II20K_DIO0_REG);
-		if (mask & 0x0000ff00)
-			writeb((s->state >> 8) & 0xff,
-			       dev->mmio + II20K_DIO1_REG);
-		if (mask & 0x00ff0000)
-			writeb((s->state >> 16) & 0xff,
-			       dev->mmio + II20K_DIO2_REG);
-		if (mask & 0xff000000)
-			writeb((s->state >> 24) & 0xff,
-			       dev->mmio + II20K_DIO3_REG);
-	}
-
-	data[1] = readb(dev->mmio + II20K_DIO0_REG);
-	data[1] |= readb(dev->mmio + II20K_DIO1_REG) << 8;
-	data[1] |= readb(dev->mmio + II20K_DIO2_REG) << 16;
-	data[1] |= readb(dev->mmio + II20K_DIO3_REG) << 24;
-
-	return insn->n;
-}
-
-static int ii20k_init_module(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	void __iomem *iobase = ii20k_module_iobase(dev, s);
-	unsigned char id;
-	int ret;
-
-	id = readb(iobase + II20K_ID_REG);
-	switch (id) {
-	case II20K_ID_PCI20006M_1:
-	case II20K_ID_PCI20006M_2:
-		/* Analog Output subdevice */
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= (id == II20K_ID_PCI20006M_2) ? 2 : 1;
-		s->maxdata	= 0xffff;
-		s->range_table	= &ii20k_ao_ranges;
-		s->insn_write	= ii20k_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-		break;
-	case II20K_ID_PCI20341M_1:
-		/* Analog Input subdevice */
-		s->type		= COMEDI_SUBD_AI;
-		s->subdev_flags	= SDF_READABLE | SDF_DIFF;
-		s->n_chan	= 4;
-		s->maxdata	= 0xffff;
-		s->range_table	= &ii20k_ai_ranges;
-		s->insn_read	= ii20k_ai_insn_read;
-		break;
-	default:
-		s->type = COMEDI_SUBD_UNUSED;
-		break;
-	}
-
-	return 0;
-}
-
-static int ii20k_attach(struct comedi_device *dev,
-			struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	unsigned int membase;
-	unsigned char id;
-	bool has_dio;
-	int ret;
-
-	membase = it->options[0];
-	if (!membase || (membase & ~(0x100000 - II20K_SIZE))) {
-		dev_warn(dev->class_dev,
-			 "%s: invalid memory address specified\n",
-			 dev->board_name);
-		return -EINVAL;
-	}
-
-	if (!request_mem_region(membase, II20K_SIZE, dev->board_name)) {
-		dev_warn(dev->class_dev, "%s: I/O mem conflict (%#x,%u)\n",
-			 dev->board_name, membase, II20K_SIZE);
-		return -EIO;
-	}
-	dev->iobase = membase;	/* actually, a memory address */
-
-	dev->mmio = ioremap(membase, II20K_SIZE);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	id = readb(dev->mmio + II20K_ID_REG);
-	switch (id & II20K_ID_MASK) {
-	case II20K_ID_PCI20001C_1A:
-		has_dio = false;
-		break;
-	case II20K_ID_PCI20001C_2A:
-		has_dio = true;
-		break;
-	default:
-		return -ENODEV;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	if (id & II20K_ID_MOD1_EMPTY) {
-		s->type = COMEDI_SUBD_UNUSED;
-	} else {
-		ret = ii20k_init_module(dev, s);
-		if (ret)
-			return ret;
-	}
-
-	s = &dev->subdevices[1];
-	if (id & II20K_ID_MOD2_EMPTY) {
-		s->type = COMEDI_SUBD_UNUSED;
-	} else {
-		ret = ii20k_init_module(dev, s);
-		if (ret)
-			return ret;
-	}
-
-	s = &dev->subdevices[2];
-	if (id & II20K_ID_MOD3_EMPTY) {
-		s->type = COMEDI_SUBD_UNUSED;
-	} else {
-		ret = ii20k_init_module(dev, s);
-		if (ret)
-			return ret;
-	}
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[3];
-	if (has_dio) {
-		s->type		= COMEDI_SUBD_DIO;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-		s->n_chan	= 32;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= ii20k_dio_insn_bits;
-		s->insn_config	= ii20k_dio_insn_config;
-
-		/* default all channels to input */
-		ii20k_dio_config(dev, s);
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	return 0;
-}
-
-static void ii20k_detach(struct comedi_device *dev)
-{
-	if (dev->mmio)
-		iounmap(dev->mmio);
-	if (dev->iobase)	/* actually, a memory address */
-		release_mem_region(dev->iobase, II20K_SIZE);
-}
-
-static struct comedi_driver ii20k_driver = {
-	.driver_name	= "ii_pci20kc",
-	.module		= THIS_MODULE,
-	.attach		= ii20k_attach,
-	.detach		= ii20k_detach,
-};
-module_comedi_driver(ii20k_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
deleted file mode 100644
index b87192e0f9aa..000000000000
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ /dev/null
@@ -1,829 +0,0 @@
-/*
-  comedi/drivers/jr3_pci.c
-  hardware driver for JR3/PCI force sensor board
-
-  COMEDI - Linux Control and Measurement Device Interface
-  Copyright (C) 2007 Anders Blomdell <anders.blomdell@control.lth.se>
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-*/
-/*
- * Driver: jr3_pci
- * Description: JR3/PCI force sensor board
- * Author: Anders Blomdell <anders.blomdell@control.lth.se>
- * Updated: Thu, 01 Nov 2012 17:34:55 +0000
- * Status: works
- * Devices: [JR3] PCI force sensor board (jr3_pci)
- *
- * Configuration options:
- *   None
- *
- * Manual configuration of comedi devices is not supported by this
- * driver; supported PCI devices are configured as comedi devices
- * automatically.
- *
- * The DSP on the board requires initialization code, which can be
- * loaded by placing it in /lib/firmware/comedi.  The initialization
- * code should be somewhere on the media you got with your card.  One
- * version is available from http://www.comedi.org in the
- * comedi_nonfree_firmware tarball.  The file is called "jr3pci.idm".
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/ctype.h>
-#include <linux/jiffies.h>
-#include <linux/slab.h>
-#include <linux/timer.h>
-
-#include "../comedi_pci.h"
-
-#include "jr3_pci.h"
-
-#define PCI_VENDOR_ID_JR3 0x1762
-
-enum jr3_pci_boardid {
-	BOARD_JR3_1,
-	BOARD_JR3_2,
-	BOARD_JR3_3,
-	BOARD_JR3_4,
-};
-
-struct jr3_pci_board {
-	const char *name;
-	int n_subdevs;
-};
-
-static const struct jr3_pci_board jr3_pci_boards[] = {
-	[BOARD_JR3_1] = {
-		.name		= "jr3_pci_1",
-		.n_subdevs	= 1,
-	},
-	[BOARD_JR3_2] = {
-		.name		= "jr3_pci_2",
-		.n_subdevs	= 2,
-	},
-	[BOARD_JR3_3] = {
-		.name		= "jr3_pci_3",
-		.n_subdevs	= 3,
-	},
-	[BOARD_JR3_4] = {
-		.name		= "jr3_pci_4",
-		.n_subdevs	= 4,
-	},
-};
-
-struct jr3_pci_transform {
-	struct {
-		u16 link_type;
-		s16 link_amount;
-	} link[8];
-};
-
-struct jr3_pci_poll_delay {
-	int min;
-	int max;
-};
-
-struct jr3_pci_dev_private {
-	struct jr3_t __iomem *iobase;
-	struct timer_list timer;
-};
-
-struct jr3_pci_subdev_private {
-	struct jr3_channel __iomem *channel;
-	unsigned long next_time_min;
-	unsigned long next_time_max;
-	enum { state_jr3_poll,
-		state_jr3_init_wait_for_offset,
-		state_jr3_init_transform_complete,
-		state_jr3_init_set_full_scale_complete,
-		state_jr3_init_use_offset_complete,
-		state_jr3_done
-	} state;
-	int serial_no;
-	int model_no;
-	struct {
-		int length;
-		struct comedi_krange range;
-	} range[9];
-	const struct comedi_lrange *range_table_list[8 * 7 + 2];
-	unsigned int maxdata_list[8 * 7 + 2];
-	u16 errors;
-	int retries;
-};
-
-static struct jr3_pci_poll_delay poll_delay_min_max(int min, int max)
-{
-	struct jr3_pci_poll_delay result;
-
-	result.min = min;
-	result.max = max;
-	return result;
-}
-
-static int is_complete(struct jr3_channel __iomem *channel)
-{
-	return get_s16(&channel->command_word0) == 0;
-}
-
-static void set_transforms(struct jr3_channel __iomem *channel,
-			   struct jr3_pci_transform transf, short num)
-{
-	int i;
-
-	num &= 0x000f;		/*  Make sure that 0 <= num <= 15 */
-	for (i = 0; i < 8; i++) {
-		set_u16(&channel->transforms[num].link[i].link_type,
-			transf.link[i].link_type);
-		udelay(1);
-		set_s16(&channel->transforms[num].link[i].link_amount,
-			transf.link[i].link_amount);
-		udelay(1);
-		if (transf.link[i].link_type == end_x_form)
-			break;
-	}
-}
-
-static void use_transform(struct jr3_channel __iomem *channel,
-			  short transf_num)
-{
-	set_s16(&channel->command_word0, 0x0500 + (transf_num & 0x000f));
-}
-
-static void use_offset(struct jr3_channel __iomem *channel, short offset_num)
-{
-	set_s16(&channel->command_word0, 0x0600 + (offset_num & 0x000f));
-}
-
-static void set_offset(struct jr3_channel __iomem *channel)
-{
-	set_s16(&channel->command_word0, 0x0700);
-}
-
-struct six_axis_t {
-	s16 fx;
-	s16 fy;
-	s16 fz;
-	s16 mx;
-	s16 my;
-	s16 mz;
-};
-
-static void set_full_scales(struct jr3_channel __iomem *channel,
-			    struct six_axis_t full_scale)
-{
-	set_s16(&channel->full_scale.fx, full_scale.fx);
-	set_s16(&channel->full_scale.fy, full_scale.fy);
-	set_s16(&channel->full_scale.fz, full_scale.fz);
-	set_s16(&channel->full_scale.mx, full_scale.mx);
-	set_s16(&channel->full_scale.my, full_scale.my);
-	set_s16(&channel->full_scale.mz, full_scale.mz);
-	set_s16(&channel->command_word0, 0x0a00);
-}
-
-static struct six_axis_t get_min_full_scales(struct jr3_channel __iomem
-					     *channel)
-{
-	struct six_axis_t result;
-
-	result.fx = get_s16(&channel->min_full_scale.fx);
-	result.fy = get_s16(&channel->min_full_scale.fy);
-	result.fz = get_s16(&channel->min_full_scale.fz);
-	result.mx = get_s16(&channel->min_full_scale.mx);
-	result.my = get_s16(&channel->min_full_scale.my);
-	result.mz = get_s16(&channel->min_full_scale.mz);
-	return result;
-}
-
-static struct six_axis_t get_max_full_scales(struct jr3_channel __iomem
-					     *channel)
-{
-	struct six_axis_t result;
-
-	result.fx = get_s16(&channel->max_full_scale.fx);
-	result.fy = get_s16(&channel->max_full_scale.fy);
-	result.fz = get_s16(&channel->max_full_scale.fz);
-	result.mx = get_s16(&channel->max_full_scale.mx);
-	result.my = get_s16(&channel->max_full_scale.my);
-	result.mz = get_s16(&channel->max_full_scale.mz);
-	return result;
-}
-
-static unsigned int jr3_pci_ai_read_chan(struct comedi_device *dev,
-					 struct comedi_subdevice *s,
-					 unsigned int chan)
-{
-	struct jr3_pci_subdev_private *spriv = s->private;
-	unsigned int val = 0;
-
-	if (spriv->state != state_jr3_done)
-		return 0;
-
-	if (chan < 56) {
-		unsigned int axis = chan % 8;
-		unsigned filter = chan / 8;
-
-		switch (axis) {
-		case 0:
-			val = get_s16(&spriv->channel->filter[filter].fx);
-			break;
-		case 1:
-			val = get_s16(&spriv->channel->filter[filter].fy);
-			break;
-		case 2:
-			val = get_s16(&spriv->channel->filter[filter].fz);
-			break;
-		case 3:
-			val = get_s16(&spriv->channel->filter[filter].mx);
-			break;
-		case 4:
-			val = get_s16(&spriv->channel->filter[filter].my);
-			break;
-		case 5:
-			val = get_s16(&spriv->channel->filter[filter].mz);
-			break;
-		case 6:
-			val = get_s16(&spriv->channel->filter[filter].v1);
-			break;
-		case 7:
-			val = get_s16(&spriv->channel->filter[filter].v2);
-			break;
-		}
-		val += 0x4000;
-	} else if (chan == 56) {
-		val = get_u16(&spriv->channel->model_no);
-	} else if (chan == 57) {
-		val = get_u16(&spriv->channel->serial_no);
-	}
-
-	return val;
-}
-
-static int jr3_pci_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct jr3_pci_subdev_private *spriv = s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	u16 errors;
-	int i;
-
-	if (!spriv)
-		return -EINVAL;
-
-	errors = get_u16(&spriv->channel->errors);
-	if (spriv->state != state_jr3_done ||
-	    (errors & (watch_dog | watch_dog2 | sensor_change))) {
-		/* No sensor or sensor changed */
-		if (spriv->state == state_jr3_done) {
-			/* Restart polling */
-			spriv->state = state_jr3_poll;
-		}
-		return -EAGAIN;
-	}
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = jr3_pci_ai_read_chan(dev, s, chan);
-
-	return insn->n;
-}
-
-static int jr3_pci_open(struct comedi_device *dev)
-{
-	struct jr3_pci_subdev_private *spriv;
-	struct comedi_subdevice *s;
-	int i;
-
-	dev_dbg(dev->class_dev, "jr3_pci_open\n");
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		spriv = s->private;
-		if (spriv)
-			dev_dbg(dev->class_dev, "serial: %p %d (%d)\n",
-				spriv, spriv->serial_no, s->index);
-	}
-	return 0;
-}
-
-static int read_idm_word(const u8 *data, size_t size, int *pos,
-			 unsigned int *val)
-{
-	int result = 0;
-	int value;
-
-	if (pos && val) {
-		/*  Skip over non hex */
-		for (; *pos < size && !isxdigit(data[*pos]); (*pos)++)
-			;
-		/*  Collect value */
-		*val = 0;
-		for (; *pos < size; (*pos)++) {
-			value = hex_to_bin(data[*pos]);
-			if (value >= 0) {
-				result = 1;
-				*val = (*val << 4) + value;
-			} else {
-				break;
-			}
-		}
-	}
-	return result;
-}
-
-static int jr3_check_firmware(struct comedi_device *dev,
-			      const u8 *data, size_t size)
-{
-	int more = 1;
-	int pos = 0;
-
-	/*
-	 * IDM file format is:
-	 *   { count, address, data <count> } *
-	 *   ffff
-	 */
-	while (more) {
-		unsigned int count = 0;
-		unsigned int addr = 0;
-
-		more = more && read_idm_word(data, size, &pos, &count);
-		if (more && count == 0xffff)
-			return 0;
-
-		more = more && read_idm_word(data, size, &pos, &addr);
-		while (more && count > 0) {
-			unsigned int dummy = 0;
-
-			more = more && read_idm_word(data, size, &pos, &dummy);
-			count--;
-		}
-	}
-
-	return -ENODATA;
-}
-
-static void jr3_write_firmware(struct comedi_device *dev,
-			       int subdev, const u8 *data, size_t size)
-{
-	struct jr3_pci_dev_private *devpriv = dev->private;
-	struct jr3_t __iomem *iobase = devpriv->iobase;
-	u32 __iomem *lo;
-	u32 __iomem *hi;
-	int more = 1;
-	int pos = 0;
-
-	while (more) {
-		unsigned int count = 0;
-		unsigned int addr = 0;
-
-		more = more && read_idm_word(data, size, &pos, &count);
-		if (more && count == 0xffff)
-			return;
-
-		more = more && read_idm_word(data, size, &pos, &addr);
-
-		dev_dbg(dev->class_dev, "Loading#%d %4.4x bytes at %4.4x\n",
-			subdev, count, addr);
-
-		while (more && count > 0) {
-			if (addr & 0x4000) {
-				/* 16 bit data, never seen in real life!! */
-				unsigned int data1 = 0;
-
-				more = more &&
-				       read_idm_word(data, size, &pos, &data1);
-				count--;
-				/* jr3[addr + 0x20000 * pnum] = data1; */
-			} else {
-				/* Download 24 bit program */
-				unsigned int data1 = 0;
-				unsigned int data2 = 0;
-
-				lo = &iobase->channel[subdev].program_lo[addr];
-				hi = &iobase->channel[subdev].program_hi[addr];
-
-				more = more &&
-				       read_idm_word(data, size, &pos, &data1);
-				more = more &&
-				       read_idm_word(data, size, &pos, &data2);
-				count -= 2;
-				if (more) {
-					set_u16(lo, data1);
-					udelay(1);
-					set_u16(hi, data2);
-					udelay(1);
-				}
-			}
-			addr++;
-		}
-	}
-}
-
-static int jr3_download_firmware(struct comedi_device *dev,
-				 const u8 *data, size_t size,
-				 unsigned long context)
-{
-	int subdev;
-	int ret;
-
-	/* verify IDM file format */
-	ret = jr3_check_firmware(dev, data, size);
-	if (ret)
-		return ret;
-
-	/* write firmware to each subdevice */
-	for (subdev = 0; subdev < dev->n_subdevices; subdev++)
-		jr3_write_firmware(dev, subdev, data, size);
-
-	return 0;
-}
-
-static struct jr3_pci_poll_delay jr3_pci_poll_subdevice(struct comedi_subdevice *s)
-{
-	struct jr3_pci_subdev_private *spriv = s->private;
-	struct jr3_pci_poll_delay result = poll_delay_min_max(1000, 2000);
-	struct jr3_channel __iomem *channel;
-	u16 model_no;
-	u16 serial_no;
-	int errors;
-	int i;
-
-	if (!spriv)
-		return result;
-
-	channel = spriv->channel;
-	errors = get_u16(&channel->errors);
-
-	if (errors != spriv->errors)
-		spriv->errors = errors;
-
-	/* Sensor communication lost? force poll mode */
-	if (errors & (watch_dog | watch_dog2 | sensor_change))
-		spriv->state = state_jr3_poll;
-
-	switch (spriv->state) {
-	case state_jr3_poll:
-		model_no = get_u16(&channel->model_no);
-		serial_no = get_u16(&channel->serial_no);
-
-		if ((errors & (watch_dog | watch_dog2)) ||
-		    model_no == 0 || serial_no == 0) {
-			/*
-			 * Still no sensor, keep on polling.
-			 * Since it takes up to 10 seconds for offsets to
-			 * stabilize, polling each second should suffice.
-			 */
-		} else {
-			spriv->retries = 0;
-			spriv->state = state_jr3_init_wait_for_offset;
-		}
-		break;
-	case state_jr3_init_wait_for_offset:
-		spriv->retries++;
-		if (spriv->retries < 10) {
-			/*
-			 * Wait for offeset to stabilize
-			 * (< 10 s according to manual)
-			 */
-		} else {
-			struct jr3_pci_transform transf;
-
-			spriv->model_no = get_u16(&channel->model_no);
-			spriv->serial_no = get_u16(&channel->serial_no);
-
-			/* Transformation all zeros */
-			for (i = 0; i < ARRAY_SIZE(transf.link); i++) {
-				transf.link[i].link_type = (enum link_types)0;
-				transf.link[i].link_amount = 0;
-			}
-
-			set_transforms(channel, transf, 0);
-			use_transform(channel, 0);
-			spriv->state = state_jr3_init_transform_complete;
-			/* Allow 20 ms for completion */
-			result = poll_delay_min_max(20, 100);
-		}
-		break;
-	case state_jr3_init_transform_complete:
-		if (!is_complete(channel)) {
-			result = poll_delay_min_max(20, 100);
-		} else {
-			/* Set full scale */
-			struct six_axis_t min_full_scale;
-			struct six_axis_t max_full_scale;
-
-			min_full_scale = get_min_full_scales(channel);
-			max_full_scale = get_max_full_scales(channel);
-			set_full_scales(channel, max_full_scale);
-
-			spriv->state = state_jr3_init_set_full_scale_complete;
-			/* Allow 20 ms for completion */
-			result = poll_delay_min_max(20, 100);
-		}
-		break;
-	case state_jr3_init_set_full_scale_complete:
-		if (!is_complete(channel)) {
-			result = poll_delay_min_max(20, 100);
-		} else {
-			struct force_array __iomem *fs = &channel->full_scale;
-
-			/* Use ranges in kN or we will overflow around 2000N! */
-			spriv->range[0].range.min = -get_s16(&fs->fx) * 1000;
-			spriv->range[0].range.max = get_s16(&fs->fx) * 1000;
-			spriv->range[1].range.min = -get_s16(&fs->fy) * 1000;
-			spriv->range[1].range.max = get_s16(&fs->fy) * 1000;
-			spriv->range[2].range.min = -get_s16(&fs->fz) * 1000;
-			spriv->range[2].range.max = get_s16(&fs->fz) * 1000;
-			spriv->range[3].range.min = -get_s16(&fs->mx) * 100;
-			spriv->range[3].range.max = get_s16(&fs->mx) * 100;
-			spriv->range[4].range.min = -get_s16(&fs->my) * 100;
-			spriv->range[4].range.max = get_s16(&fs->my) * 100;
-			spriv->range[5].range.min = -get_s16(&fs->mz) * 100;
-			/* the next five are questionable */
-			spriv->range[5].range.max = get_s16(&fs->mz) * 100;
-			spriv->range[6].range.min = -get_s16(&fs->v1) * 100;
-			spriv->range[6].range.max = get_s16(&fs->v1) * 100;
-			spriv->range[7].range.min = -get_s16(&fs->v2) * 100;
-			spriv->range[7].range.max = get_s16(&fs->v2) * 100;
-			spriv->range[8].range.min = 0;
-			spriv->range[8].range.max = 65535;
-
-			use_offset(channel, 0);
-			spriv->state = state_jr3_init_use_offset_complete;
-			/* Allow 40 ms for completion */
-			result = poll_delay_min_max(40, 100);
-		}
-		break;
-	case state_jr3_init_use_offset_complete:
-		if (!is_complete(channel)) {
-			result = poll_delay_min_max(20, 100);
-		} else {
-			set_s16(&channel->offsets.fx, 0);
-			set_s16(&channel->offsets.fy, 0);
-			set_s16(&channel->offsets.fz, 0);
-			set_s16(&channel->offsets.mx, 0);
-			set_s16(&channel->offsets.my, 0);
-			set_s16(&channel->offsets.mz, 0);
-
-			set_offset(channel);
-
-			spriv->state = state_jr3_done;
-		}
-		break;
-	case state_jr3_done:
-		result = poll_delay_min_max(10000, 20000);
-		break;
-	default:
-		break;
-	}
-
-	return result;
-}
-
-static void jr3_pci_poll_dev(unsigned long data)
-{
-	struct comedi_device *dev = (struct comedi_device *)data;
-	struct jr3_pci_dev_private *devpriv = dev->private;
-	struct jr3_pci_subdev_private *spriv;
-	struct comedi_subdevice *s;
-	unsigned long flags;
-	unsigned long now;
-	int delay;
-	int i;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	delay = 1000;
-	now = jiffies;
-
-	/* Poll all channels that are ready to be polled */
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		spriv = s->private;
-
-		if (now > spriv->next_time_min) {
-			struct jr3_pci_poll_delay sub_delay;
-
-			sub_delay = jr3_pci_poll_subdevice(s);
-
-			spriv->next_time_min = jiffies +
-					       msecs_to_jiffies(sub_delay.min);
-			spriv->next_time_max = jiffies +
-					       msecs_to_jiffies(sub_delay.max);
-
-			if (sub_delay.max && sub_delay.max < delay)
-				/*
-				 * Wake up as late as possible ->
-				 * poll as many channels as possible at once.
-				 */
-				delay = sub_delay.max;
-		}
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	devpriv->timer.expires = jiffies + msecs_to_jiffies(delay);
-	add_timer(&devpriv->timer);
-}
-
-static struct jr3_pci_subdev_private *
-jr3_pci_alloc_spriv(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct jr3_pci_dev_private *devpriv = dev->private;
-	struct jr3_pci_subdev_private *spriv;
-	int j;
-	int k;
-
-	spriv = comedi_alloc_spriv(s, sizeof(*spriv));
-	if (!spriv)
-		return NULL;
-
-	spriv->channel = &devpriv->iobase->channel[s->index].data;
-
-	for (j = 0; j < 8; j++) {
-		spriv->range[j].length = 1;
-		spriv->range[j].range.min = -1000000;
-		spriv->range[j].range.max = 1000000;
-
-		for (k = 0; k < 7; k++) {
-			spriv->range_table_list[j + k * 8] =
-				(struct comedi_lrange *)&spriv->range[j];
-			spriv->maxdata_list[j + k * 8] = 0x7fff;
-		}
-	}
-	spriv->range[8].length = 1;
-	spriv->range[8].range.min = 0;
-	spriv->range[8].range.max = 65536;
-
-	spriv->range_table_list[56] = (struct comedi_lrange *)&spriv->range[8];
-	spriv->range_table_list[57] = (struct comedi_lrange *)&spriv->range[8];
-	spriv->maxdata_list[56] = 0xffff;
-	spriv->maxdata_list[57] = 0xffff;
-
-	dev_dbg(dev->class_dev, "p->channel %p %p (%tx)\n",
-		spriv->channel, devpriv->iobase,
-		((char __iomem *)spriv->channel -
-		 (char __iomem *)devpriv->iobase));
-
-	return spriv;
-}
-
-static int jr3_pci_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	static const struct jr3_pci_board *board;
-	struct jr3_pci_dev_private *devpriv;
-	struct jr3_pci_subdev_private *spriv;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	if (sizeof(struct jr3_channel) != 0xc00) {
-		dev_err(dev->class_dev,
-			"sizeof(struct jr3_channel) = %x [expected %x]\n",
-			(unsigned)sizeof(struct jr3_channel), 0xc00);
-		return -EINVAL;
-	}
-
-	if (context < ARRAY_SIZE(jr3_pci_boards))
-		board = &jr3_pci_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv->iobase = pci_ioremap_bar(pcidev, 0);
-	if (!devpriv->iobase)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, board->n_subdevs);
-	if (ret)
-		return ret;
-
-	dev->open = jr3_pci_open;
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		s->type		= COMEDI_SUBD_AI;
-		s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-		s->n_chan	= 8 * 7 + 2;
-		s->insn_read	= jr3_pci_ai_insn_read;
-
-		spriv = jr3_pci_alloc_spriv(dev, s);
-		if (spriv) {
-			/* Channel specific range and maxdata */
-			s->range_table_list	= spriv->range_table_list;
-			s->maxdata_list		= spriv->maxdata_list;
-		}
-	}
-
-	/*  Reset DSP card */
-	writel(0, &devpriv->iobase->channel[0].reset);
-
-	ret = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
-				   "comedi/jr3pci.idm",
-				   jr3_download_firmware, 0);
-	dev_dbg(dev->class_dev, "Firmare load %d\n", ret);
-	if (ret < 0)
-		return ret;
-	/*
-	 * TODO: use firmware to load preferred offset tables. Suggested
-	 * format:
-	 *     model serial Fx Fy Fz Mx My Mz\n
-	 *
-	 *     comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
-	 *                          "comedi/jr3_offsets_table",
-	 *                          jr3_download_firmware, 1);
-	 */
-
-	/*
-	 * It takes a few milliseconds for software to settle as much as we
-	 * can read firmware version
-	 */
-	msleep_interruptible(25);
-	for (i = 0; i < 0x18; i++) {
-		dev_dbg(dev->class_dev, "%c\n",
-			get_u16(&devpriv->iobase->channel[0].
-				data.copyright[i]) >> 8);
-	}
-
-	/*  Start card timer */
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		spriv = s->private;
-
-		spriv->next_time_min = jiffies + msecs_to_jiffies(500);
-		spriv->next_time_max = jiffies + msecs_to_jiffies(2000);
-	}
-
-	setup_timer(&devpriv->timer, jr3_pci_poll_dev, (unsigned long)dev);
-	devpriv->timer.expires = jiffies + msecs_to_jiffies(1000);
-	add_timer(&devpriv->timer);
-
-	return 0;
-}
-
-static void jr3_pci_detach(struct comedi_device *dev)
-{
-	struct jr3_pci_dev_private *devpriv = dev->private;
-
-	if (devpriv) {
-		del_timer_sync(&devpriv->timer);
-
-		if (devpriv->iobase)
-			iounmap(devpriv->iobase);
-	}
-	comedi_pci_disable(dev);
-}
-
-static struct comedi_driver jr3_pci_driver = {
-	.driver_name	= "jr3_pci",
-	.module		= THIS_MODULE,
-	.auto_attach	= jr3_pci_auto_attach,
-	.detach		= jr3_pci_detach,
-};
-
-static int jr3_pci_pci_probe(struct pci_dev *dev,
-			     const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &jr3_pci_driver, id->driver_data);
-}
-
-static const struct pci_device_id jr3_pci_pci_table[] = {
-	{ PCI_VDEVICE(JR3, 0x1111), BOARD_JR3_1 },
-	{ PCI_VDEVICE(JR3, 0x3111), BOARD_JR3_1 },
-	{ PCI_VDEVICE(JR3, 0x3112), BOARD_JR3_2 },
-	{ PCI_VDEVICE(JR3, 0x3113), BOARD_JR3_3 },
-	{ PCI_VDEVICE(JR3, 0x3114), BOARD_JR3_4 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, jr3_pci_pci_table);
-
-static struct pci_driver jr3_pci_pci_driver = {
-	.name		= "jr3_pci",
-	.id_table	= jr3_pci_pci_table,
-	.probe		= jr3_pci_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(jr3_pci_driver, jr3_pci_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE("comedi/jr3pci.idm");
diff --git a/drivers/staging/comedi/drivers/jr3_pci.h b/drivers/staging/comedi/drivers/jr3_pci.h
deleted file mode 100644
index 356811defaf4..000000000000
--- a/drivers/staging/comedi/drivers/jr3_pci.h
+++ /dev/null
@@ -1,682 +0,0 @@
-/* Helper types to take care of the fact that the DSP card memory
- * is 16 bits, but aligned on a 32 bit PCI boundary
- */
-
-static inline u16 get_u16(const u32 __iomem *p)
-{
-	return (u16)readl(p);
-}
-
-static inline void set_u16(u32 __iomem *p, u16 val)
-{
-	writel(val, p);
-}
-
-static inline s16 get_s16(const s32 __iomem *p)
-{
-	return (s16)readl(p);
-}
-
-static inline void set_s16(s32 __iomem *p, s16 val)
-{
-	writel(val, p);
-}
-
-/* The raw data is stored in a format which facilitates rapid
- * processing by the JR3 DSP chip. The raw_channel structure shows the
- * format for a single channel of data. Each channel takes four,
- * two-byte words.
- *
- * Raw_time is an unsigned integer which shows the value of the JR3
- * DSP's internal clock at the time the sample was received. The clock
- * runs at 1/10 the JR3 DSP cycle time. JR3's slowest DSP runs at 10
- * Mhz. At 10 Mhz raw_time would therefore clock at 1 Mhz.
- *
- * Raw_data is the raw data received directly from the sensor. The
- * sensor data stream is capable of representing 16 different
- * channels. Channel 0 shows the excitation voltage at the sensor. It
- * is used to regulate the voltage over various cable lengths.
- * Channels 1-6 contain the coupled force data Fx through Mz. Channel
- * 7 contains the sensor's calibration data. The use of channels 8-15
- * varies with different sensors.
- */
-
-struct raw_channel {
-	u32 raw_time;
-	s32 raw_data;
-	s32 reserved[2];
-};
-
-/* The force_array structure shows the layout for the decoupled and
- * filtered force data.
- */
-struct force_array {
-	s32 fx;
-	s32 fy;
-	s32 fz;
-	s32 mx;
-	s32 my;
-	s32 mz;
-	s32 v1;
-	s32 v2;
-};
-
-/* The six_axis_array structure shows the layout for the offsets and
- * the full scales.
- */
-struct six_axis_array {
-	s32 fx;
-	s32 fy;
-	s32 fz;
-	s32 mx;
-	s32 my;
-	s32 mz;
-};
-
-/* VECT_BITS */
-/* The vect_bits structure shows the layout for indicating
- * which axes to use in computing the vectors. Each bit signifies
- * selection of a single axis. The V1x axis bit corresponds to a hex
- * value of 0x0001 and the V2z bit corresponds to a hex value of
- * 0x0020. Example: to specify the axes V1x, V1y, V2x, and V2z the
- * pattern would be 0x002b. Vector 1 defaults to a force vector and
- * vector 2 defaults to a moment vector. It is possible to change one
- * or the other so that two force vectors or two moment vectors are
- * calculated. Setting the changeV1 bit or the changeV2 bit will
- * change that vector to be the opposite of its default. Therefore to
- * have two force vectors, set changeV1 to 1.
- */
-
-/* vect_bits appears to be unused at this time */
-enum {
-	fx = 0x0001,
-	fy = 0x0002,
-	fz = 0x0004,
-	mx = 0x0008,
-	my = 0x0010,
-	mz = 0x0020,
-	changeV2 = 0x0040,
-	changeV1 = 0x0080
-};
-
-/* WARNING_BITS */
-/* The warning_bits structure shows the bit pattern for the warning
- * word. The bit fields are shown from bit 0 (lsb) to bit 15 (msb).
- */
-
-/*  XX_NEAR_SET */
-/* The xx_near_sat bits signify that the indicated axis has reached or
- * exceeded the near saturation value.
- */
-
-enum {
-	fx_near_sat = 0x0001,
-	fy_near_sat = 0x0002,
-	fz_near_sat = 0x0004,
-	mx_near_sat = 0x0008,
-	my_near_sat = 0x0010,
-	mz_near_sat = 0x0020
-};
-
-/*  ERROR_BITS */
-/*  XX_SAT */
-/*  MEMORY_ERROR */
-/*  SENSOR_CHANGE */
-
-/* The error_bits structure shows the bit pattern for the error word.
- * The bit fields are shown from bit 0 (lsb) to bit 15 (msb). The
- * xx_sat bits signify that the indicated axis has reached or exceeded
- * the saturation value. The memory_error bit indicates that a problem
- * was detected in the on-board RAM during the power-up
- * initialization. The sensor_change bit indicates that a sensor other
- * than the one originally plugged in has passed its CRC check. This
- * bit latches, and must be reset by the user.
- *
- */
-
-/*  SYSTEM_BUSY */
-
-/* The system_busy bit indicates that the JR3 DSP is currently busy
- * and is not calculating force data. This occurs when a new
- * coordinate transformation, or new sensor full scale is set by the
- * user. A very fast system using the force data for feedback might
- * become unstable during the approximately 4 ms needed to accomplish
- * these calculations. This bit will also become active when a new
- * sensor is plugged in and the system needs to recalculate the
- * calibration CRC.
- */
-
-/*  CAL_CRC_BAD */
-
-/* The cal_crc_bad bit indicates that the calibration CRC has not
- * calculated to zero. CRC is short for cyclic redundancy code. It is
- * a method for determining the integrity of messages in data
- * communication. The calibration data stored inside the sensor is
- * transmitted to the JR3 DSP along with the sensor data. The
- * calibration data has a CRC attached to the end of it, to assist in
- * determining the completeness and integrity of the calibration data
- * received from the sensor. There are two reasons the CRC may not
- * have calculated to zero. The first is that all the calibration data
- * has not yet been received, the second is that the calibration data
- * has been corrupted. A typical sensor transmits the entire contents
- * of its calibration matrix over 30 times a second. Therefore, if
- * this bit is not zero within a couple of seconds after the sensor
- * has been plugged in, there is a problem with the sensor's
- * calibration data.
- */
-
-/* WATCH_DOG */
-/* WATCH_DOG2 */
-
-/* The watch_dog and watch_dog2 bits are sensor, not processor, watch
- * dog bits. Watch_dog indicates that the sensor data line seems to be
- * acting correctly, while watch_dog2 indicates that sensor data and
- * clock are being received. It is possible for watch_dog2 to go off
- * while watch_dog does not. This would indicate an improper clock
- * signal, while data is acting correctly. If either watch dog barks,
- * the sensor data is not being received correctly.
- */
-
-enum error_bits_t {
-	fx_sat = 0x0001,
-	fy_sat = 0x0002,
-	fz_sat = 0x0004,
-	mx_sat = 0x0008,
-	my_sat = 0x0010,
-	mz_sat = 0x0020,
-	memory_error = 0x0400,
-	sensor_change = 0x0800,
-	system_busy = 0x1000,
-	cal_crc_bad = 0x2000,
-	watch_dog2 = 0x4000,
-	watch_dog = 0x8000
-};
-
-/*  THRESH_STRUCT */
-
-/* This structure shows the layout for a single threshold packet inside of a
- * load envelope. Each load envelope can contain several threshold structures.
- * 1. data_address contains the address of the data for that threshold. This
- *    includes filtered, unfiltered, raw, rate, counters, error and warning data
- * 2. threshold is the is the value at which, if data is above or below, the
- *    bits will be set ... (pag.24).
- * 3. bit_pattern contains the bits that will be set if the threshold value is
- *    met or exceeded.
- */
-
-struct thresh_struct {
-	s32 data_address;
-	s32 threshold;
-	s32 bit_pattern;
-};
-
-/*  LE_STRUCT */
-
-/* Layout of a load enveloped packet. Four thresholds are showed ... for more
- * see manual (pag.25)
- * 1. latch_bits is a bit pattern that show which bits the user wants to latch.
- *    The latched bits will not be reset once the threshold which set them is
- *    no longer true. In that case the user must reset them using the reset_bit
- *    command.
- * 2. number_of_xx_thresholds specify how many GE/LE threshold there are.
- */
-struct le_struct {
-	s32 latch_bits;
-	s32 number_of_ge_thresholds;
-	s32 number_of_le_thresholds;
-	struct thresh_struct thresholds[4];
-	s32 reserved;
-};
-
-/*  LINK_TYPES */
-/* Link types is an enumerated value showing the different possible transform
- * link types.
- * 0 - end transform packet
- * 1 - translate along X axis (TX)
- * 2 - translate along Y axis (TY)
- * 3 - translate along Z axis (TZ)
- * 4 - rotate about X axis (RX)
- * 5 - rotate about Y axis (RY)
- * 6 - rotate about Z axis (RZ)
- * 7 - negate all axes (NEG)
- */
-
-enum link_types {
-	end_x_form,
-	tx,
-	ty,
-	tz,
-	rx,
-	ry,
-	rz,
-	neg
-};
-
-/*  TRANSFORM */
-/*  Structure used to describe a transform. */
-struct intern_transform {
-	struct {
-		u32 link_type;
-		s32 link_amount;
-	} link[8];
-};
-
-/*  JR3 force/torque sensor data definition. For more information see sensor
- *  and hardware manuals.
- */
-
-struct jr3_channel {
-	/*  Raw_channels is the area used to store the raw data coming from */
-	/*  the sensor. */
-
-	struct raw_channel raw_channels[16];	/* offset 0x0000 */
-
-	/*  Copyright is a null terminated ASCII string containing the JR3 */
-	/*  copyright notice. */
-
-	u32 copyright[0x0018];	/* offset 0x0040 */
-	s32 reserved1[0x0008];	/* offset 0x0058 */
-
-	/* Shunts contains the sensor shunt readings. Some JR3 sensors have
-	 * the ability to have their gains adjusted. This allows the
-	 * hardware full scales to be adjusted to potentially allow
-	 * better resolution or dynamic range. For sensors that have
-	 * this ability, the gain of each sensor channel is measured at
-	 * the time of calibration using a shunt resistor. The shunt
-	 * resistor is placed across one arm of the resistor bridge, and
-	 * the resulting change in the output of that channel is
-	 * measured. This measurement is called the shunt reading, and
-	 * is recorded here. If the user has changed the gain of the //
-	 * sensor, and made new shunt measurements, those shunt
-	 * measurements can be placed here. The JR3 DSP will then scale
-	 * the calibration matrix such so that the gains are again
-	 * proper for the indicated shunt readings. If shunts is 0, then
-	 * the sensor cannot have its gain changed. For details on
-	 * changing the sensor gain, and making shunts readings, please
-	 * see the sensor manual. To make these values take effect the
-	 * user must call either command (5) use transform # (pg. 33) or
-	 * command (10) set new full scales (pg. 38).
-	 */
-
-	struct six_axis_array shunts;	/* offset 0x0060 */
-	s32 reserved2[2];	/* offset 0x0066 */
-
-	/* Default_FS contains the full scale that is used if the user does */
-	/* not set a full scale. */
-
-	struct six_axis_array default_FS;	/* offset 0x0068 */
-	s32 reserved3;		/* offset 0x006e */
-
-	/* Load_envelope_num is the load envelope number that is currently
-	 * in use. This value is set by the user after one of the load
-	 * envelopes has been initialized.
-	 */
-
-	s32 load_envelope_num;	/* offset 0x006f */
-
-	/* Min_full_scale is the recommend minimum full scale. */
-
-	/* These values in conjunction with max_full_scale (pg. 9) helps
-	 * determine the appropriate value for setting the full scales. The
-	 * software allows the user to set the sensor full scale to an
-	 * arbitrary value. But setting the full scales has some hazards. If
-	 * the full scale is set too low, the data will saturate
-	 * prematurely, and dynamic range will be lost. If the full scale is
-	 * set too high, then resolution is lost as the data is shifted to
-	 * the right and the least significant bits are lost. Therefore the
-	 * maximum full scale is the maximum value at which no resolution is
-	 * lost, and the minimum full scale is the value at which the data
-	 * will not saturate prematurely. These values are calculated
-	 * whenever a new coordinate transformation is calculated. It is
-	 * possible for the recommended maximum to be less than the
-	 * recommended minimum. This comes about primarily when using
-	 * coordinate translations. If this is the case, it means that any
-	 * full scale selection will be a compromise between dynamic range
-	 * and resolution. It is usually recommended to compromise in favor
-	 * of resolution which means that the recommend maximum full scale
-	 * should be chosen.
-	 *
-	 * WARNING: Be sure that the full scale is no less than 0.4% of the
-	 * recommended minimum full scale. Full scales below this value will
-	 * cause erroneous results.
-	 */
-
-	struct six_axis_array min_full_scale;	/* offset 0x0070 */
-	s32 reserved4;		/* offset 0x0076 */
-
-	/* Transform_num is the transform number that is currently in use.
-	 * This value is set by the JR3 DSP after the user has used command
-	 * (5) use transform # (pg. 33).
-	 */
-
-	s32 transform_num;	/* offset 0x0077 */
-
-	/*  Max_full_scale is the recommended maximum full scale. See */
-	/*  min_full_scale (pg. 9) for more details. */
-
-	struct six_axis_array max_full_scale;	/* offset 0x0078 */
-	s32 reserved5;		/* offset 0x007e */
-
-	/* Peak_address is the address of the data which will be monitored
-	 * by the peak routine. This value is set by the user. The peak
-	 * routine will monitor any 8 contiguous addresses for peak values.
-	 * (ex. to watch filter3 data for peaks, set this value to 0x00a8).
-	 */
-
-	s32 peak_address;	/* offset 0x007f */
-
-	/* Full_scale is the sensor full scales which are currently in use.
-	 * Decoupled and filtered data is scaled so that +/- 16384 is equal
-	 * to the full scales. The engineering units used are indicated by
-	 * the units value discussed on page 16. The full scales for Fx, Fy,
-	 * Fz, Mx, My and Mz can be written by the user prior to calling
-	 * command (10) set new full scales (pg. 38). The full scales for V1
-	 * and V2 are set whenever the full scales are changed or when the
-	 * axes used to calculate the vectors are changed. The full scale of
-	 * V1 and V2 will always be equal to the largest full scale of the
-	 * axes used for each vector respectively.
-	 */
-
-	struct force_array full_scale;	/* offset 0x0080 */
-
-	/* Offsets contains the sensor offsets. These values are subtracted from
-	 * the sensor data to obtain the decoupled data. The offsets are set a
-	 * few seconds (< 10) after the calibration data has been received.
-	 * They are set so that the output data will be zero. These values
-	 * can be written as well as read. The JR3 DSP will use the values
-	 * written here within 2 ms of being written. To set future
-	 * decoupled data to zero, add these values to the current decoupled
-	 * data values and place the sum here. The JR3 DSP will change these
-	 * values when a new transform is applied. So if the offsets are
-	 * such that FX is 5 and all other values are zero, after rotating
-	 * about Z by 90 degrees, FY would be 5 and all others would be zero.
-	 */
-
-	struct six_axis_array offsets;	/* offset 0x0088 */
-
-	/* Offset_num is the number of the offset currently in use. This
-	 * value is set by the JR3 DSP after the user has executed the use
-	 * offset # command (pg. 34). It can vary between 0 and 15.
-	 */
-
-	s32 offset_num;		/* offset 0x008e */
-
-	/* Vect_axes is a bit map showing which of the axes are being used
-	 * in the vector calculations. This value is set by the JR3 DSP
-	 * after the user has executed the set vector axes command (pg. 37).
-	 */
-
-	u32 vect_axes;		/* offset 0x008f */
-
-	/* Filter0 is the decoupled, unfiltered data from the JR3 sensor.
-	 * This data has had the offsets removed.
-	 *
-	 * These force_arrays hold the filtered data. The decoupled data is
-	 * passed through cascaded low pass filters. Each succeeding filter
-	 * has a cutoff frequency of 1/4 of the preceding filter. The cutoff
-	 * frequency of filter1 is 1/16 of the sample rate from the sensor.
-	 * For a typical sensor with a sample rate of 8 kHz, the cutoff
-	 * frequency of filter1 would be 500 Hz. The following filters would
-	 * cutoff at 125 Hz, 31.25 Hz, 7.813 Hz, 1.953 Hz and 0.4883 Hz.
-	 */
-
-	struct force_array filter[7];	/* offset 0x0090,
-					   offset 0x0098,
-					   offset 0x00a0,
-					   offset 0x00a8,
-					   offset 0x00b0,
-					   offset 0x00b8 ,
-					   offset 0x00c0 */
-
-	/* Rate_data is the calculated rate data. It is a first derivative
-	 * calculation. It is calculated at a frequency specified by the
-	 * variable rate_divisor (pg. 12). The data on which the rate is
-	 * calculated is specified by the variable rate_address (pg. 12).
-	 */
-
-	struct force_array rate_data;	/* offset 0x00c8 */
-
-	/* Minimum_data & maximum_data are the minimum and maximum (peak)
-	 * data values. The JR3 DSP can monitor any 8 contiguous data items
-	 * for minimums and maximums at full sensor bandwidth. This area is
-	 * only updated at user request. This is done so that the user does
-	 * not miss any peaks. To read the data, use either the read peaks
-	 * command (pg. 40), or the read and reset peaks command (pg. 39).
-	 * The address of the data to watch for peaks is stored in the
-	 * variable peak_address (pg. 10). Peak data is lost when executing
-	 * a coordinate transformation or a full scale change. Peak data is
-	 * also lost when plugging in a new sensor.
-	 */
-
-	struct force_array minimum_data;	/* offset 0x00d0 */
-	struct force_array maximum_data;	/* offset 0x00d8 */
-
-	/* Near_sat_value & sat_value contain the value used to determine if
-	 * the raw sensor is saturated. Because of decoupling and offset
-	 * removal, it is difficult to tell from the processed data if the
-	 * sensor is saturated. These values, in conjunction with the error
-	 * and warning words (pg. 14), provide this critical information.
-	 * These two values may be set by the host processor. These values
-	 * are positive signed values, since the saturation logic uses the
-	 * absolute values of the raw data. The near_sat_value defaults to
-	 * approximately 80% of the ADC's full scale, which is 26214, while
-	 * sat_value defaults to the ADC's full scale:
-	 *
-	 *   sat_value = 32768 - 2^(16 - ADC bits)
-	 */
-
-	s32 near_sat_value;	/* offset 0x00e0 */
-	s32 sat_value;		/* offset 0x00e1 */
-
-	/* Rate_address, rate_divisor & rate_count contain the data used to
-	 * control the calculations of the rates. Rate_address is the
-	 * address of the data used for the rate calculation. The JR3 DSP
-	 * will calculate rates for any 8 contiguous values (ex. to
-	 * calculate rates for filter3 data set rate_address to 0x00a8).
-	 * Rate_divisor is how often the rate is calculated. If rate_divisor
-	 * is 1, the rates are calculated at full sensor bandwidth. If
-	 * rate_divisor is 200, rates are calculated every 200 samples.
-	 * Rate_divisor can be any value between 1 and 65536. Set
-	 * rate_divisor to 0 to calculate rates every 65536 samples.
-	 * Rate_count starts at zero and counts until it equals
-	 * rate_divisor, at which point the rates are calculated, and
-	 * rate_count is reset to 0. When setting a new rate divisor, it is
-	 * a good idea to set rate_count to one less than rate divisor. This
-	 * will minimize the time necessary to start the rate calculations.
-	 */
-
-	s32 rate_address;	/* offset 0x00e2 */
-	u32 rate_divisor;	/* offset 0x00e3 */
-	u32 rate_count;		/* offset 0x00e4 */
-
-	/* Command_word2 through command_word0 are the locations used to
-	 * send commands to the JR3 DSP. Their usage varies with the command
-	 * and is detailed later in the Command Definitions section (pg.
-	 * 29). In general the user places values into various memory
-	 * locations, and then places the command word into command_word0.
-	 * The JR3 DSP will process the command and place a 0 into
-	 * command_word0 to indicate successful completion. Alternatively
-	 * the JR3 DSP will place a negative number into command_word0 to
-	 * indicate an error condition. Please note the command locations
-	 * are numbered backwards. (I.E. command_word2 comes before
-	 * command_word1).
-	 */
-
-	s32 command_word2;	/* offset 0x00e5 */
-	s32 command_word1;	/* offset 0x00e6 */
-	s32 command_word0;	/* offset 0x00e7 */
-
-	/* Count1 through count6 are unsigned counters which are incremented
-	 * every time the matching filters are calculated. Filter1 is
-	 * calculated at the sensor data bandwidth. So this counter would
-	 * increment at 8 kHz for a typical sensor. The rest of the counters
-	 * are incremented at 1/4 the interval of the counter immediately
-	 * preceding it, so they would count at 2 kHz, 500 Hz, 125 Hz etc.
-	 * These counters can be used to wait for data. Each time the
-	 * counter changes, the corresponding data set can be sampled, and
-	 * this will insure that the user gets each sample, once, and only
-	 * once.
-	 */
-
-	u32 count1;		/* offset 0x00e8 */
-	u32 count2;		/* offset 0x00e9 */
-	u32 count3;		/* offset 0x00ea */
-	u32 count4;		/* offset 0x00eb */
-	u32 count5;		/* offset 0x00ec */
-	u32 count6;		/* offset 0x00ed */
-
-	/* Error_count is a running count of data reception errors. If this
-	 * counter is changing rapidly, it probably indicates a bad sensor
-	 * cable connection or other hardware problem. In most installations
-	 * error_count should not change at all. But it is possible in an
-	 * extremely noisy environment to experience occasional errors even
-	 * without a hardware problem. If the sensor is well grounded, this
-	 * is probably unavoidable in these environments. On the occasions
-	 * where this counter counts a bad sample, that sample is ignored.
-	 */
-
-	u32 error_count;	/* offset 0x00ee */
-
-	/* Count_x is a counter which is incremented every time the JR3 DSP
-	 * searches its job queues and finds nothing to do. It indicates the
-	 * amount of idle time the JR3 DSP has available. It can also be
-	 * used to determine if the JR3 DSP is alive. See the Performance
-	 * Issues section on pg. 49 for more details.
-	 */
-
-	u32 count_x;		/* offset 0x00ef */
-
-	/* Warnings & errors contain the warning and error bits
-	 * respectively. The format of these two words is discussed on page
-	 * 21 under the headings warnings_bits and error_bits.
-	 */
-
-	u32 warnings;		/* offset 0x00f0 */
-	u32 errors;		/* offset 0x00f1 */
-
-	/* Threshold_bits is a word containing the bits that are set by the
-	 * load envelopes. See load_envelopes (pg. 17) and thresh_struct
-	 * (pg. 23) for more details.
-	 */
-
-	s32 threshold_bits;	/* offset 0x00f2 */
-
-	/* Last_crc is the value that shows the actual calculated CRC. CRC
-	 * is short for cyclic redundancy code. It should be zero. See the
-	 * description for cal_crc_bad (pg. 21) for more information.
-	 */
-
-	s32 last_CRC;		/* offset 0x00f3 */
-
-	/* EEProm_ver_no contains the version number of the sensor EEProm.
-	 * EEProm version numbers can vary between 0 and 255.
-	 * Software_ver_no contains the software version number. Version
-	 * 3.02 would be stored as 302.
-	 */
-
-	s32 eeprom_ver_no;	/* offset 0x00f4 */
-	s32 software_ver_no;	/* offset 0x00f5 */
-
-	/* Software_day & software_year are the release date of the software
-	 * the JR3 DSP is currently running. Day is the day of the year,
-	 * with January 1 being 1, and December 31, being 365 for non leap
-	 * years.
-	 */
-
-	s32 software_day;	/* offset 0x00f6 */
-	s32 software_year;	/* offset 0x00f7 */
-
-	/* Serial_no & model_no are the two values which uniquely identify a
-	 * sensor. This model number does not directly correspond to the JR3
-	 * model number, but it will provide a unique identifier for
-	 * different sensor configurations.
-	 */
-
-	u32 serial_no;		/* offset 0x00f8 */
-	u32 model_no;		/* offset 0x00f9 */
-
-	/* Cal_day & cal_year are the sensor calibration date. Day is the
-	 * day of the year, with January 1 being 1, and December 31, being
-	 * 366 for leap years.
-	 */
-
-	s32 cal_day;		/* offset 0x00fa */
-	s32 cal_year;		/* offset 0x00fb */
-
-	/* Units is an enumerated read only value defining the engineering
-	 * units used in the sensor full scale. The meanings of particular
-	 * values are discussed in the section detailing the force_units
-	 * structure on page 22. The engineering units are setto customer
-	 * specifications during sensor manufacture and cannot be changed by
-	 * writing to Units.
-	 *
-	 * Bits contains the number of bits of resolution of the ADC
-	 * currently in use.
-	 *
-	 * Channels is a bit field showing which channels the current sensor
-	 * is capable of sending. If bit 0 is active, this sensor can send
-	 * channel 0, if bit 13 is active, this sensor can send channel 13,
-	 * etc. This bit can be active, even if the sensor is not currently
-	 * sending this channel. Some sensors are configurable as to which
-	 * channels to send, and this field only contains information on the
-	 * channels available to send, not on the current configuration. To
-	 * find which channels are currently being sent, monitor the
-	 * Raw_time fields (pg. 19) in the raw_channels array (pg. 7). If
-	 * the time is changing periodically, then that channel is being
-	 * received.
-	 */
-
-	u32 units;		/* offset 0x00fc */
-	s32 bits;		/* offset 0x00fd */
-	s32 channels;		/* offset 0x00fe */
-
-	/* Thickness specifies the overall thickness of the sensor from
-	 * flange to flange. The engineering units for this value are
-	 * contained in units (pg. 16). The sensor calibration is relative
-	 * to the center of the sensor. This value allows easy coordinate
-	 * transformation from the center of the sensor to either flange.
-	 */
-
-	s32 thickness;		/* offset 0x00ff */
-
-	/* Load_envelopes is a table containing the load envelope
-	 * descriptions. There are 16 possible load envelope slots in the
-	 * table. The slots are on 16 word boundaries and are numbered 0-15.
-	 * Each load envelope needs to start at the beginning of a slot but
-	 * need not be fully contained in that slot. That is to say that a
-	 * single load envelope can be larger than a single slot. The
-	 * software has been tested and ran satisfactorily with 50
-	 * thresholds active. A single load envelope this large would take
-	 * up 5 of the 16 slots. The load envelope data is laid out in an
-	 * order that is most efficient for the JR3 DSP. The structure is
-	 * detailed later in the section showing the definition of the
-	 * le_struct structure (pg. 23).
-	 */
-
-	struct le_struct load_envelopes[0x10];	/* offset 0x0100 */
-
-	/* Transforms is a table containing the transform descriptions.
-	 * There are 16 possible transform slots in the table. The slots are
-	 * on 16 word boundaries and are numbered 0-15. Each transform needs
-	 * to start at the beginning of a slot but need not be fully
-	 * contained in that slot. That is to say that a single transform
-	 * can be larger than a single slot. A transform is 2 * no of links
-	 * + 1 words in length. So a single slot can contain a transform
-	 * with 7 links. Two slots can contain a transform that is 15 links.
-	 * The layout is detailed later in the section showing the
-	 * definition of the transform structure (pg. 26).
-	 */
-
-	struct intern_transform transforms[0x10];	/* offset 0x0200 */
-};
-
-struct jr3_t {
-	struct {
-		u32 program_lo[0x4000];		/*  0x00000 - 0x10000 */
-		struct jr3_channel data;	/*  0x10000 - 0x10c00 */
-		char pad2[0x30000 - 0x00c00];	/*  0x10c00 - 0x40000 */
-		u32 program_hi[0x8000];		/*  0x40000 - 0x60000 */
-		u32 reset;			/*  0x60000 - 0x60004 */
-		char pad3[0x20000 - 0x00004];	/*  0x60004 - 0x80000 */
-	} channel[4];
-};
diff --git a/drivers/staging/comedi/drivers/ke_counter.c b/drivers/staging/comedi/drivers/ke_counter.c
deleted file mode 100644
index dc642edf4f65..000000000000
--- a/drivers/staging/comedi/drivers/ke_counter.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * ke_counter.c
- * Comedi driver for Kolter-Electronic PCI Counter 1 Card
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: ke_counter
- * Description: Driver for Kolter Electronic Counter Card
- * Devices: [Kolter Electronic] PCI Counter Card (ke_counter)
- * Author: Michael Hillmann
- * Updated: Mon, 14 Apr 2008 15:42:42 +0100
- * Status: tested
- *
- * Configuration Options: not applicable, uses PCI auto config
- */
-
-#include <linux/module.h>
-
-#include "../comedi_pci.h"
-
-/*
- * PCI BAR 0 Register I/O map
- */
-#define KE_RESET_REG(x)			(0x00 + ((x) * 0x20))
-#define KE_LATCH_REG(x)			(0x00 + ((x) * 0x20))
-#define KE_LSB_REG(x)			(0x04 + ((x) * 0x20))
-#define KE_MID_REG(x)			(0x08 + ((x) * 0x20))
-#define KE_MSB_REG(x)			(0x0c + ((x) * 0x20))
-#define KE_SIGN_REG(x)			(0x10 + ((x) * 0x20))
-#define KE_OSC_SEL_REG			0xf8
-#define KE_OSC_SEL_EXT			(1 << 0)
-#define KE_OSC_SEL_4MHZ			(2 << 0)
-#define KE_OSC_SEL_20MHZ		(3 << 0)
-#define KE_DO_REG			0xfc
-
-static int ke_counter_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[0];
-
-		/* Order matters */
-		outb((val >> 24) & 0xff, dev->iobase + KE_SIGN_REG(chan));
-		outb((val >> 16) & 0xff, dev->iobase + KE_MSB_REG(chan));
-		outb((val >> 8) & 0xff, dev->iobase + KE_MID_REG(chan));
-		outb((val >> 0) & 0xff, dev->iobase + KE_LSB_REG(chan));
-	}
-
-	return insn->n;
-}
-
-static int ke_counter_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		/* Order matters */
-		inb(dev->iobase + KE_LATCH_REG(chan));
-
-		val = inb(dev->iobase + KE_LSB_REG(chan));
-		val |= (inb(dev->iobase + KE_MID_REG(chan)) << 8);
-		val |= (inb(dev->iobase + KE_MSB_REG(chan)) << 16);
-		val |= (inb(dev->iobase + KE_SIGN_REG(chan)) << 24);
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static void ke_counter_reset(struct comedi_device *dev)
-{
-	unsigned int chan;
-
-	for (chan = 0; chan < 3; chan++)
-		outb(0, dev->iobase + KE_RESET_REG(chan));
-}
-
-static int ke_counter_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned char src;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		switch (data[1]) {
-		case KE_CLK_20MHZ:	/* default */
-			src = KE_OSC_SEL_20MHZ;
-			break;
-		case KE_CLK_4MHZ:	/* option */
-			src = KE_OSC_SEL_4MHZ;
-			break;
-		case KE_CLK_EXT:	/* Pin 21 on D-sub */
-			src = KE_OSC_SEL_EXT;
-			break;
-		default:
-			return -EINVAL;
-		}
-		outb(src, dev->iobase + KE_OSC_SEL_REG);
-		break;
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		src = inb(dev->iobase + KE_OSC_SEL_REG);
-		switch (src) {
-		case KE_OSC_SEL_20MHZ:
-			data[1] = KE_CLK_20MHZ;
-			data[2] = 50;	/* 50ns */
-			break;
-		case KE_OSC_SEL_4MHZ:
-			data[1] = KE_CLK_4MHZ;
-			data[2] = 250;	/* 250ns */
-			break;
-		case KE_OSC_SEL_EXT:
-			data[1] = KE_CLK_EXT;
-			data[2] = 0;	/* Unknown */
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case INSN_CONFIG_RESET:
-		ke_counter_reset(dev);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int ke_counter_do_insn_bits(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + KE_DO_REG);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int ke_counter_auto_attach(struct comedi_device *dev,
-				  unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-	dev->iobase = pci_resource_start(pcidev, 0);
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 3;
-	s->maxdata	= 0x01ffffff;
-	s->range_table	= &range_unknown;
-	s->insn_read	= ke_counter_insn_read;
-	s->insn_write	= ke_counter_insn_write;
-	s->insn_config	= ke_counter_insn_config;
-
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 3;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= ke_counter_do_insn_bits;
-
-	outb(KE_OSC_SEL_20MHZ, dev->iobase + KE_OSC_SEL_REG);
-
-	ke_counter_reset(dev);
-
-	return 0;
-}
-
-static struct comedi_driver ke_counter_driver = {
-	.driver_name	= "ke_counter",
-	.module		= THIS_MODULE,
-	.auto_attach	= ke_counter_auto_attach,
-	.detach		= comedi_pci_detach,
-};
-
-static int ke_counter_pci_probe(struct pci_dev *dev,
-				const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &ke_counter_driver,
-				      id->driver_data);
-}
-
-static const struct pci_device_id ke_counter_pci_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_KOLTER, 0x0014) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ke_counter_pci_table);
-
-static struct pci_driver ke_counter_pci_driver = {
-	.name		= "ke_counter",
-	.id_table	= ke_counter_pci_table,
-	.probe		= ke_counter_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(ke_counter_driver, ke_counter_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Kolter Electronic Counter Card");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
deleted file mode 100644
index 15a53204a36a..000000000000
--- a/drivers/staging/comedi/drivers/me4000.c
+++ /dev/null
@@ -1,1287 +0,0 @@
-/*
- * me4000.c
- * Source code for the Meilhaus ME-4000 board family.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: me4000
- * Description: Meilhaus ME-4000 series boards
- * Devices: [Meilhaus] ME-4650 (me4000), ME-4670i, ME-4680, ME-4680i,
- *	    ME-4680is
- * Author: gg (Guenter Gebhardt <g.gebhardt@meilhaus.com>)
- * Updated: Mon, 18 Mar 2002 15:34:01 -0800
- * Status: untested
- *
- * Supports:
- *	- Analog Input
- *	- Analog Output
- *	- Digital I/O
- *	- Counter
- *
- * Configuration Options: not applicable, uses PCI auto config
- *
- * The firmware required by these boards is available in the
- * comedi_nonfree_firmware tarball available from
- * http://www.comedi.org.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "comedi_8254.h"
-#include "plx9052.h"
-
-#define ME4000_FIRMWARE		"me4000_firmware.bin"
-
-/*
- * ME4000 Register map and bit defines
- */
-#define ME4000_AO_CHAN(x)			((x) * 0x18)
-
-#define ME4000_AO_CTRL_REG(x)			(0x00 + ME4000_AO_CHAN(x))
-#define ME4000_AO_CTRL_MODE_0			BIT(0)
-#define ME4000_AO_CTRL_MODE_1			BIT(1)
-#define ME4000_AO_CTRL_STOP			BIT(2)
-#define ME4000_AO_CTRL_ENABLE_FIFO		BIT(3)
-#define ME4000_AO_CTRL_ENABLE_EX_TRIG		BIT(4)
-#define ME4000_AO_CTRL_EX_TRIG_EDGE		BIT(5)
-#define ME4000_AO_CTRL_IMMEDIATE_STOP		BIT(7)
-#define ME4000_AO_CTRL_ENABLE_DO		BIT(8)
-#define ME4000_AO_CTRL_ENABLE_IRQ		BIT(9)
-#define ME4000_AO_CTRL_RESET_IRQ		BIT(10)
-#define ME4000_AO_STATUS_REG(x)			(0x04 + ME4000_AO_CHAN(x))
-#define ME4000_AO_STATUS_FSM			BIT(0)
-#define ME4000_AO_STATUS_FF			BIT(1)
-#define ME4000_AO_STATUS_HF			BIT(2)
-#define ME4000_AO_STATUS_EF			BIT(3)
-#define ME4000_AO_FIFO_REG(x)			(0x08 + ME4000_AO_CHAN(x))
-#define ME4000_AO_SINGLE_REG(x)			(0x0c + ME4000_AO_CHAN(x))
-#define ME4000_AO_TIMER_REG(x)			(0x10 + ME4000_AO_CHAN(x))
-#define ME4000_AI_CTRL_REG			0x74
-#define ME4000_AI_STATUS_REG			0x74
-#define ME4000_AI_CTRL_MODE_0			BIT(0)
-#define ME4000_AI_CTRL_MODE_1			BIT(1)
-#define ME4000_AI_CTRL_MODE_2			BIT(2)
-#define ME4000_AI_CTRL_SAMPLE_HOLD		BIT(3)
-#define ME4000_AI_CTRL_IMMEDIATE_STOP		BIT(4)
-#define ME4000_AI_CTRL_STOP			BIT(5)
-#define ME4000_AI_CTRL_CHANNEL_FIFO		BIT(6)
-#define ME4000_AI_CTRL_DATA_FIFO		BIT(7)
-#define ME4000_AI_CTRL_FULLSCALE		BIT(8)
-#define ME4000_AI_CTRL_OFFSET			BIT(9)
-#define ME4000_AI_CTRL_EX_TRIG_ANALOG		BIT(10)
-#define ME4000_AI_CTRL_EX_TRIG			BIT(11)
-#define ME4000_AI_CTRL_EX_TRIG_FALLING		BIT(12)
-#define ME4000_AI_CTRL_EX_IRQ			BIT(13)
-#define ME4000_AI_CTRL_EX_IRQ_RESET		BIT(14)
-#define ME4000_AI_CTRL_LE_IRQ			BIT(15)
-#define ME4000_AI_CTRL_LE_IRQ_RESET		BIT(16)
-#define ME4000_AI_CTRL_HF_IRQ			BIT(17)
-#define ME4000_AI_CTRL_HF_IRQ_RESET		BIT(18)
-#define ME4000_AI_CTRL_SC_IRQ			BIT(19)
-#define ME4000_AI_CTRL_SC_IRQ_RESET		BIT(20)
-#define ME4000_AI_CTRL_SC_RELOAD		BIT(21)
-#define ME4000_AI_STATUS_EF_CHANNEL		BIT(22)
-#define ME4000_AI_STATUS_HF_CHANNEL		BIT(23)
-#define ME4000_AI_STATUS_FF_CHANNEL		BIT(24)
-#define ME4000_AI_STATUS_EF_DATA		BIT(25)
-#define ME4000_AI_STATUS_HF_DATA		BIT(26)
-#define ME4000_AI_STATUS_FF_DATA		BIT(27)
-#define ME4000_AI_STATUS_LE			BIT(28)
-#define ME4000_AI_STATUS_FSM			BIT(29)
-#define ME4000_AI_CTRL_EX_TRIG_BOTH		BIT(31)
-#define ME4000_AI_CHANNEL_LIST_REG		0x78
-#define ME4000_AI_LIST_INPUT_DIFFERENTIAL	BIT(5)
-#define ME4000_AI_LIST_RANGE(x)			((3 - ((x) & 3)) << 6)
-#define ME4000_AI_LIST_LAST_ENTRY		BIT(8)
-#define ME4000_AI_DATA_REG			0x7c
-#define ME4000_AI_CHAN_TIMER_REG		0x80
-#define ME4000_AI_CHAN_PRE_TIMER_REG		0x84
-#define ME4000_AI_SCAN_TIMER_LOW_REG		0x88
-#define ME4000_AI_SCAN_TIMER_HIGH_REG		0x8c
-#define ME4000_AI_SCAN_PRE_TIMER_LOW_REG	0x90
-#define ME4000_AI_SCAN_PRE_TIMER_HIGH_REG	0x94
-#define ME4000_AI_START_REG			0x98
-#define ME4000_IRQ_STATUS_REG			0x9c
-#define ME4000_IRQ_STATUS_EX			BIT(0)
-#define ME4000_IRQ_STATUS_LE			BIT(1)
-#define ME4000_IRQ_STATUS_AI_HF			BIT(2)
-#define ME4000_IRQ_STATUS_AO_0_HF		BIT(3)
-#define ME4000_IRQ_STATUS_AO_1_HF		BIT(4)
-#define ME4000_IRQ_STATUS_AO_2_HF		BIT(5)
-#define ME4000_IRQ_STATUS_AO_3_HF		BIT(6)
-#define ME4000_IRQ_STATUS_SC			BIT(7)
-#define ME4000_DIO_PORT_0_REG			0xa0
-#define ME4000_DIO_PORT_1_REG			0xa4
-#define ME4000_DIO_PORT_2_REG			0xa8
-#define ME4000_DIO_PORT_3_REG			0xac
-#define ME4000_DIO_DIR_REG			0xb0
-#define ME4000_AO_LOADSETREG_XX			0xb4
-#define ME4000_DIO_CTRL_REG			0xb8
-#define ME4000_DIO_CTRL_MODE_0			BIT(0)
-#define ME4000_DIO_CTRL_MODE_1			BIT(1)
-#define ME4000_DIO_CTRL_MODE_2			BIT(2)
-#define ME4000_DIO_CTRL_MODE_3			BIT(3)
-#define ME4000_DIO_CTRL_MODE_4			BIT(4)
-#define ME4000_DIO_CTRL_MODE_5			BIT(5)
-#define ME4000_DIO_CTRL_MODE_6			BIT(6)
-#define ME4000_DIO_CTRL_MODE_7			BIT(7)
-#define ME4000_DIO_CTRL_FUNCTION_0		BIT(8)
-#define ME4000_DIO_CTRL_FUNCTION_1		BIT(9)
-#define ME4000_DIO_CTRL_FIFO_HIGH_0		BIT(10)
-#define ME4000_DIO_CTRL_FIFO_HIGH_1		BIT(11)
-#define ME4000_DIO_CTRL_FIFO_HIGH_2		BIT(12)
-#define ME4000_DIO_CTRL_FIFO_HIGH_3		BIT(13)
-#define ME4000_AO_DEMUX_ADJUST_REG		0xbc
-#define ME4000_AO_DEMUX_ADJUST_VALUE		0x4c
-#define ME4000_AI_SAMPLE_COUNTER_REG		0xc0
-
-#define ME4000_AI_FIFO_COUNT			2048
-
-#define ME4000_AI_MIN_TICKS			66
-#define ME4000_AI_MIN_SAMPLE_TIME		2000
-
-#define ME4000_AI_CHANNEL_LIST_COUNT		1024
-
-struct me4000_private {
-	unsigned long plx_regbase;
-	unsigned int ai_ctrl_mode;
-	unsigned int ai_init_ticks;
-	unsigned int ai_scan_ticks;
-	unsigned int ai_chan_ticks;
-};
-
-enum me4000_boardid {
-	BOARD_ME4650,
-	BOARD_ME4660,
-	BOARD_ME4660I,
-	BOARD_ME4660S,
-	BOARD_ME4660IS,
-	BOARD_ME4670,
-	BOARD_ME4670I,
-	BOARD_ME4670S,
-	BOARD_ME4670IS,
-	BOARD_ME4680,
-	BOARD_ME4680I,
-	BOARD_ME4680S,
-	BOARD_ME4680IS,
-};
-
-struct me4000_board {
-	const char *name;
-	int ai_nchan;
-	unsigned int can_do_diff_ai:1;
-	unsigned int can_do_sh_ai:1;	/* sample & hold (8 channels) */
-	unsigned int ex_trig_analog:1;
-	unsigned int has_ao:1;
-	unsigned int has_ao_fifo:1;
-	unsigned int has_counter:1;
-};
-
-static const struct me4000_board me4000_boards[] = {
-	[BOARD_ME4650] = {
-		.name		= "ME-4650",
-		.ai_nchan	= 16,
-	},
-	[BOARD_ME4660] = {
-		.name		= "ME-4660",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4660I] = {
-		.name		= "ME-4660i",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4660S] = {
-		.name		= "ME-4660s",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.can_do_sh_ai	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4660IS] = {
-		.name		= "ME-4660is",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.can_do_sh_ai	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4670] = {
-		.name		= "ME-4670",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4670I] = {
-		.name		= "ME-4670i",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4670S] = {
-		.name		= "ME-4670s",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.can_do_sh_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4670IS] = {
-		.name		= "ME-4670is",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.can_do_sh_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4680] = {
-		.name		= "ME-4680",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_ao_fifo	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4680I] = {
-		.name		= "ME-4680i",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_ao_fifo	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4680S] = {
-		.name		= "ME-4680s",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.can_do_sh_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_ao_fifo	= 1,
-		.has_counter	= 1,
-	},
-	[BOARD_ME4680IS] = {
-		.name		= "ME-4680is",
-		.ai_nchan	= 32,
-		.can_do_diff_ai	= 1,
-		.can_do_sh_ai	= 1,
-		.ex_trig_analog	= 1,
-		.has_ao		= 1,
-		.has_ao_fifo	= 1,
-		.has_counter	= 1,
-	},
-};
-
-/*
- * NOTE: the ranges here are inverted compared to the values
- * written to the ME4000_AI_CHANNEL_LIST_REG,
- *
- * The ME4000_AI_LIST_RANGE() macro handles the inversion.
- */
-static const struct comedi_lrange me4000_ai_range = {
-	4, {
-		UNI_RANGE(2.5),
-		UNI_RANGE(10),
-		BIP_RANGE(2.5),
-		BIP_RANGE(10)
-	}
-};
-
-static int me4000_xilinx_download(struct comedi_device *dev,
-				  const u8 *data, size_t size,
-				  unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct me4000_private *devpriv = dev->private;
-	unsigned long xilinx_iobase = pci_resource_start(pcidev, 5);
-	unsigned int file_length;
-	unsigned int val;
-	unsigned int i;
-
-	if (!xilinx_iobase)
-		return -ENODEV;
-
-	/*
-	 * Set PLX local interrupt 2 polarity to high.
-	 * Interrupt is thrown by init pin of xilinx.
-	 */
-	outl(PLX9052_INTCSR_LI2POL, devpriv->plx_regbase + PLX9052_INTCSR);
-
-	/* Set /CS and /WRITE of the Xilinx */
-	val = inl(devpriv->plx_regbase + PLX9052_CNTRL);
-	val |= PLX9052_CNTRL_UIO2_DATA;
-	outl(val, devpriv->plx_regbase + PLX9052_CNTRL);
-
-	/* Init Xilinx with CS1 */
-	inb(xilinx_iobase + 0xC8);
-
-	/* Wait until /INIT pin is set */
-	usleep_range(20, 1000);
-	val = inl(devpriv->plx_regbase + PLX9052_INTCSR);
-	if (!(val & PLX9052_INTCSR_LI2STAT)) {
-		dev_err(dev->class_dev, "Can't init Xilinx\n");
-		return -EIO;
-	}
-
-	/* Reset /CS and /WRITE of the Xilinx */
-	val = inl(devpriv->plx_regbase + PLX9052_CNTRL);
-	val &= ~PLX9052_CNTRL_UIO2_DATA;
-	outl(val, devpriv->plx_regbase + PLX9052_CNTRL);
-
-	/* Download Xilinx firmware */
-	file_length = (((unsigned int)data[0] & 0xff) << 24) +
-		      (((unsigned int)data[1] & 0xff) << 16) +
-		      (((unsigned int)data[2] & 0xff) << 8) +
-		      ((unsigned int)data[3] & 0xff);
-	usleep_range(10, 1000);
-
-	for (i = 0; i < file_length; i++) {
-		outb(data[16 + i], xilinx_iobase);
-		usleep_range(10, 1000);
-
-		/* Check if BUSY flag is low */
-		val = inl(devpriv->plx_regbase + PLX9052_CNTRL);
-		if (val & PLX9052_CNTRL_UIO1_DATA) {
-			dev_err(dev->class_dev,
-				"Xilinx is still busy (i = %d)\n", i);
-			return -EIO;
-		}
-	}
-
-	/* If done flag is high download was successful */
-	val = inl(devpriv->plx_regbase + PLX9052_CNTRL);
-	if (!(val & PLX9052_CNTRL_UIO0_DATA)) {
-		dev_err(dev->class_dev, "DONE flag is not set\n");
-		dev_err(dev->class_dev, "Download not successful\n");
-		return -EIO;
-	}
-
-	/* Set /CS and /WRITE */
-	val = inl(devpriv->plx_regbase + PLX9052_CNTRL);
-	val |= PLX9052_CNTRL_UIO2_DATA;
-	outl(val, devpriv->plx_regbase + PLX9052_CNTRL);
-
-	return 0;
-}
-
-static void me4000_ai_reset(struct comedi_device *dev)
-{
-	unsigned int ctrl;
-
-	/* Stop any running conversion */
-	ctrl = inl(dev->iobase + ME4000_AI_CTRL_REG);
-	ctrl |= ME4000_AI_CTRL_STOP | ME4000_AI_CTRL_IMMEDIATE_STOP;
-	outl(ctrl, dev->iobase + ME4000_AI_CTRL_REG);
-
-	/* Clear the control register */
-	outl(0x0, dev->iobase + ME4000_AI_CTRL_REG);
-}
-
-static void me4000_reset(struct comedi_device *dev)
-{
-	struct me4000_private *devpriv = dev->private;
-	unsigned int val;
-	int chan;
-
-	/* Disable interrupts on the PLX */
-	outl(0, devpriv->plx_regbase + PLX9052_INTCSR);
-
-	/* Software reset the PLX */
-	val = inl(devpriv->plx_regbase + PLX9052_CNTRL);
-	val |= PLX9052_CNTRL_PCI_RESET;
-	outl(val, devpriv->plx_regbase + PLX9052_CNTRL);
-	val &= ~PLX9052_CNTRL_PCI_RESET;
-	outl(val, devpriv->plx_regbase + PLX9052_CNTRL);
-
-	/* 0x8000 to the DACs means an output voltage of 0V */
-	for (chan = 0; chan < 4; chan++)
-		outl(0x8000, dev->iobase + ME4000_AO_SINGLE_REG(chan));
-
-	me4000_ai_reset(dev);
-
-	/* Set both stop bits in the analog output control register */
-	val = ME4000_AO_CTRL_IMMEDIATE_STOP | ME4000_AO_CTRL_STOP;
-	for (chan = 0; chan < 4; chan++)
-		outl(val, dev->iobase + ME4000_AO_CTRL_REG(chan));
-
-	/* Set the adustment register for AO demux */
-	outl(ME4000_AO_DEMUX_ADJUST_VALUE,
-	     dev->iobase + ME4000_AO_DEMUX_ADJUST_REG);
-
-	/*
-	 * Set digital I/O direction for port 0
-	 * to output on isolated versions
-	 */
-	if (!(inl(dev->iobase + ME4000_DIO_DIR_REG) & 0x1))
-		outl(0x1, dev->iobase + ME4000_DIO_CTRL_REG);
-}
-
-static unsigned int me4000_ai_get_sample(struct comedi_device *dev,
-					 struct comedi_subdevice *s)
-{
-	unsigned int val;
-
-	/* read two's complement value and munge to offset binary */
-	val = inl(dev->iobase + ME4000_AI_DATA_REG);
-	return comedi_offset_munge(s, val);
-}
-
-static int me4000_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inl(dev->iobase + ME4000_AI_STATUS_REG);
-	if (status & ME4000_AI_STATUS_EF_DATA)
-		return 0;
-	return -EBUSY;
-}
-
-static int me4000_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int aref = CR_AREF(insn->chanspec);
-	unsigned int entry;
-	int ret = 0;
-	int i;
-
-	entry = chan | ME4000_AI_LIST_RANGE(range);
-	if (aref == AREF_DIFF) {
-		if (!(s->subdev_flags & SDF_DIFF)) {
-			dev_err(dev->class_dev,
-				"Differential inputs are not available\n");
-			return -EINVAL;
-		}
-
-		if (!comedi_range_is_bipolar(s, range)) {
-			dev_err(dev->class_dev,
-				"Range must be bipolar when aref = diff\n");
-			return -EINVAL;
-		}
-
-		if (chan >= (s->n_chan / 2)) {
-			dev_err(dev->class_dev,
-				"Analog input is not available\n");
-			return -EINVAL;
-		}
-		entry |= ME4000_AI_LIST_INPUT_DIFFERENTIAL;
-	}
-
-	entry |= ME4000_AI_LIST_LAST_ENTRY;
-
-	/* Enable channel list and data fifo for single acquisition mode */
-	outl(ME4000_AI_CTRL_CHANNEL_FIFO | ME4000_AI_CTRL_DATA_FIFO,
-	     dev->iobase + ME4000_AI_CTRL_REG);
-
-	/* Generate channel list entry */
-	outl(entry, dev->iobase + ME4000_AI_CHANNEL_LIST_REG);
-
-	/* Set the timer to maximum sample rate */
-	outl(ME4000_AI_MIN_TICKS, dev->iobase + ME4000_AI_CHAN_TIMER_REG);
-	outl(ME4000_AI_MIN_TICKS, dev->iobase + ME4000_AI_CHAN_PRE_TIMER_REG);
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val;
-
-		/* start conversion by dummy read */
-		inl(dev->iobase + ME4000_AI_START_REG);
-
-		ret = comedi_timeout(dev, s, insn, me4000_ai_eoc, 0);
-		if (ret)
-			break;
-
-		val = me4000_ai_get_sample(dev, s);
-		data[i] = comedi_offset_munge(s, val);
-	}
-
-	me4000_ai_reset(dev);
-
-	return ret ? ret : insn->n;
-}
-
-static int me4000_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	me4000_ai_reset(dev);
-
-	return 0;
-}
-
-static int me4000_ai_check_chanlist(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_cmd *cmd)
-{
-	unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-
-		if (aref != aref0) {
-			dev_dbg(dev->class_dev,
-				"Mode is not equal for all entries\n");
-			return -EINVAL;
-		}
-
-		if (aref == AREF_DIFF) {
-			if (!(s->subdev_flags & SDF_DIFF)) {
-				dev_err(dev->class_dev,
-					"Differential inputs are not available\n");
-				return -EINVAL;
-			}
-
-			if (chan >= (s->n_chan / 2)) {
-				dev_dbg(dev->class_dev,
-					"Channel number to high\n");
-				return -EINVAL;
-			}
-
-			if (!comedi_range_is_bipolar(s, range)) {
-				dev_dbg(dev->class_dev,
-					"Bipolar is not selected in differential mode\n");
-				return -EINVAL;
-			}
-		}
-	}
-
-	return 0;
-}
-
-static void me4000_ai_round_cmd_args(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	struct me4000_private *devpriv = dev->private;
-	int rest;
-
-	devpriv->ai_init_ticks = 0;
-	devpriv->ai_scan_ticks = 0;
-	devpriv->ai_chan_ticks = 0;
-
-	if (cmd->start_arg) {
-		devpriv->ai_init_ticks = (cmd->start_arg * 33) / 1000;
-		rest = (cmd->start_arg * 33) % 1000;
-
-		if ((cmd->flags & CMDF_ROUND_MASK) == CMDF_ROUND_NEAREST) {
-			if (rest > 33)
-				devpriv->ai_init_ticks++;
-		} else if ((cmd->flags & CMDF_ROUND_MASK) == CMDF_ROUND_UP) {
-			if (rest)
-				devpriv->ai_init_ticks++;
-		}
-	}
-
-	if (cmd->scan_begin_arg) {
-		devpriv->ai_scan_ticks = (cmd->scan_begin_arg * 33) / 1000;
-		rest = (cmd->scan_begin_arg * 33) % 1000;
-
-		if ((cmd->flags & CMDF_ROUND_MASK) == CMDF_ROUND_NEAREST) {
-			if (rest > 33)
-				devpriv->ai_scan_ticks++;
-		} else if ((cmd->flags & CMDF_ROUND_MASK) == CMDF_ROUND_UP) {
-			if (rest)
-				devpriv->ai_scan_ticks++;
-		}
-	}
-
-	if (cmd->convert_arg) {
-		devpriv->ai_chan_ticks = (cmd->convert_arg * 33) / 1000;
-		rest = (cmd->convert_arg * 33) % 1000;
-
-		if ((cmd->flags & CMDF_ROUND_MASK) == CMDF_ROUND_NEAREST) {
-			if (rest > 33)
-				devpriv->ai_chan_ticks++;
-		} else if ((cmd->flags & CMDF_ROUND_MASK) == CMDF_ROUND_UP) {
-			if (rest)
-				devpriv->ai_chan_ticks++;
-		}
-	}
-}
-
-static void me4000_ai_write_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_cmd *cmd)
-{
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-		unsigned int entry;
-
-		entry = chan | ME4000_AI_LIST_RANGE(range);
-
-		if (aref == AREF_DIFF)
-			entry |= ME4000_AI_LIST_INPUT_DIFFERENTIAL;
-
-		if (i == (cmd->chanlist_len - 1))
-			entry |= ME4000_AI_LIST_LAST_ENTRY;
-
-		outl(entry, dev->iobase + ME4000_AI_CHANNEL_LIST_REG);
-	}
-}
-
-static int me4000_ai_do_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct me4000_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int ctrl;
-
-	/* Write timer arguments */
-	outl(devpriv->ai_init_ticks - 1,
-	     dev->iobase + ME4000_AI_SCAN_PRE_TIMER_LOW_REG);
-	outl(0x0, dev->iobase + ME4000_AI_SCAN_PRE_TIMER_HIGH_REG);
-
-	if (devpriv->ai_scan_ticks) {
-		outl(devpriv->ai_scan_ticks - 1,
-		     dev->iobase + ME4000_AI_SCAN_TIMER_LOW_REG);
-		outl(0x0, dev->iobase + ME4000_AI_SCAN_TIMER_HIGH_REG);
-	}
-
-	outl(devpriv->ai_chan_ticks - 1,
-	     dev->iobase + ME4000_AI_CHAN_PRE_TIMER_REG);
-	outl(devpriv->ai_chan_ticks - 1,
-	     dev->iobase + ME4000_AI_CHAN_TIMER_REG);
-
-	/* Start sources */
-	ctrl = devpriv->ai_ctrl_mode |
-	       ME4000_AI_CTRL_CHANNEL_FIFO |
-	       ME4000_AI_CTRL_DATA_FIFO;
-
-	/* Stop triggers */
-	if (cmd->stop_src == TRIG_COUNT) {
-		outl(cmd->chanlist_len * cmd->stop_arg,
-		     dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
-		ctrl |= ME4000_AI_CTRL_SC_IRQ;
-	} else if (cmd->stop_src == TRIG_NONE &&
-		   cmd->scan_end_src == TRIG_COUNT) {
-		outl(cmd->scan_end_arg,
-		     dev->iobase + ME4000_AI_SAMPLE_COUNTER_REG);
-		ctrl |= ME4000_AI_CTRL_SC_IRQ;
-	}
-	ctrl |= ME4000_AI_CTRL_HF_IRQ;
-
-	/* Write the setup to the control register */
-	outl(ctrl, dev->iobase + ME4000_AI_CTRL_REG);
-
-	/* Write the channel list */
-	me4000_ai_write_chanlist(dev, s, cmd);
-
-	/* Start acquistion by dummy read */
-	inl(dev->iobase + ME4000_AI_START_REG);
-
-	return 0;
-}
-
-static int me4000_ai_do_cmd_test(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_cmd *cmd)
-{
-	struct me4000_private *devpriv = dev->private;
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src,
-					TRIG_NONE | TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE | TRIG_COUNT);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_end_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->start_src == TRIG_NOW &&
-	    cmd->scan_begin_src == TRIG_TIMER &&
-	    cmd->convert_src == TRIG_TIMER) {
-		devpriv->ai_ctrl_mode = ME4000_AI_CTRL_MODE_0;
-	} else if (cmd->start_src == TRIG_NOW &&
-		   cmd->scan_begin_src == TRIG_FOLLOW &&
-		   cmd->convert_src == TRIG_TIMER) {
-		devpriv->ai_ctrl_mode = ME4000_AI_CTRL_MODE_0;
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_TIMER &&
-		   cmd->convert_src == TRIG_TIMER) {
-		devpriv->ai_ctrl_mode = ME4000_AI_CTRL_MODE_1;
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_FOLLOW &&
-		   cmd->convert_src == TRIG_TIMER) {
-		devpriv->ai_ctrl_mode = ME4000_AI_CTRL_MODE_1;
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_EXT &&
-		   cmd->convert_src == TRIG_TIMER) {
-		devpriv->ai_ctrl_mode = ME4000_AI_CTRL_MODE_2;
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_EXT &&
-		   cmd->convert_src == TRIG_EXT) {
-		devpriv->ai_ctrl_mode = ME4000_AI_CTRL_MODE_0 |
-					ME4000_AI_CTRL_MODE_1;
-	} else {
-		err |= -EINVAL;
-	}
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->chanlist_len < 1) {
-		cmd->chanlist_len = 1;
-		err |= -EINVAL;
-	}
-
-	/* Round the timer arguments */
-	me4000_ai_round_cmd_args(dev, s, cmd);
-
-	if (devpriv->ai_init_ticks < 66) {
-		cmd->start_arg = 2000;
-		err |= -EINVAL;
-	}
-	if (devpriv->ai_scan_ticks && devpriv->ai_scan_ticks < 67) {
-		cmd->scan_begin_arg = 2031;
-		err |= -EINVAL;
-	}
-	if (devpriv->ai_chan_ticks < 66) {
-		cmd->convert_arg = 2000;
-		err |= -EINVAL;
-	}
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/*
-	 * Stage 4. Check for argument conflicts.
-	 */
-	if (cmd->start_src == TRIG_NOW &&
-	    cmd->scan_begin_src == TRIG_TIMER &&
-	    cmd->convert_src == TRIG_TIMER) {
-		/* Check timer arguments */
-		if (devpriv->ai_init_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid start arg\n");
-			cmd->start_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-		if (devpriv->ai_chan_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid convert arg\n");
-			cmd->convert_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-		if (devpriv->ai_scan_ticks <=
-		    cmd->chanlist_len * devpriv->ai_chan_ticks) {
-			dev_err(dev->class_dev, "Invalid scan end arg\n");
-
-			/*  At least one tick more */
-			cmd->scan_end_arg = 2000 * cmd->chanlist_len + 31;
-			err++;
-		}
-	} else if (cmd->start_src == TRIG_NOW &&
-		   cmd->scan_begin_src == TRIG_FOLLOW &&
-		   cmd->convert_src == TRIG_TIMER) {
-		/* Check timer arguments */
-		if (devpriv->ai_init_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid start arg\n");
-			cmd->start_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-		if (devpriv->ai_chan_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid convert arg\n");
-			cmd->convert_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_TIMER &&
-		   cmd->convert_src == TRIG_TIMER) {
-		/* Check timer arguments */
-		if (devpriv->ai_init_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid start arg\n");
-			cmd->start_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-		if (devpriv->ai_chan_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid convert arg\n");
-			cmd->convert_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-		if (devpriv->ai_scan_ticks <=
-		    cmd->chanlist_len * devpriv->ai_chan_ticks) {
-			dev_err(dev->class_dev, "Invalid scan end arg\n");
-
-			/*  At least one tick more */
-			cmd->scan_end_arg = 2000 * cmd->chanlist_len + 31;
-			err++;
-		}
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_FOLLOW &&
-		   cmd->convert_src == TRIG_TIMER) {
-		/* Check timer arguments */
-		if (devpriv->ai_init_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid start arg\n");
-			cmd->start_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-		if (devpriv->ai_chan_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid convert arg\n");
-			cmd->convert_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_EXT &&
-		   cmd->convert_src == TRIG_TIMER) {
-		/* Check timer arguments */
-		if (devpriv->ai_init_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid start arg\n");
-			cmd->start_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-		if (devpriv->ai_chan_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid convert arg\n");
-			cmd->convert_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-	} else if (cmd->start_src == TRIG_EXT &&
-		   cmd->scan_begin_src == TRIG_EXT &&
-		   cmd->convert_src == TRIG_EXT) {
-		/* Check timer arguments */
-		if (devpriv->ai_init_ticks < ME4000_AI_MIN_TICKS) {
-			dev_err(dev->class_dev, "Invalid start arg\n");
-			cmd->start_arg = 2000;	/*  66 ticks at least */
-			err++;
-		}
-	}
-	if (cmd->scan_end_src == TRIG_COUNT) {
-		if (cmd->scan_end_arg == 0) {
-			dev_err(dev->class_dev, "Invalid scan end arg\n");
-			cmd->scan_end_arg = 1;
-			err++;
-		}
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= me4000_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
-{
-	unsigned int tmp;
-	struct comedi_device *dev = dev_id;
-	struct comedi_subdevice *s = dev->read_subdev;
-	int i;
-	int c = 0;
-	unsigned int lval;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	if (inl(dev->iobase + ME4000_IRQ_STATUS_REG) &
-	    ME4000_IRQ_STATUS_AI_HF) {
-		/* Read status register to find out what happened */
-		tmp = inl(dev->iobase + ME4000_AI_STATUS_REG);
-
-		if (!(tmp & ME4000_AI_STATUS_FF_DATA) &&
-		    !(tmp & ME4000_AI_STATUS_HF_DATA) &&
-		    (tmp & ME4000_AI_STATUS_EF_DATA)) {
-			dev_err(dev->class_dev, "FIFO overflow\n");
-			s->async->events |= COMEDI_CB_ERROR;
-			c = ME4000_AI_FIFO_COUNT;
-		} else if ((tmp & ME4000_AI_STATUS_FF_DATA) &&
-			   !(tmp & ME4000_AI_STATUS_HF_DATA) &&
-			   (tmp & ME4000_AI_STATUS_EF_DATA)) {
-			c = ME4000_AI_FIFO_COUNT / 2;
-		} else {
-			dev_err(dev->class_dev, "Undefined FIFO state\n");
-			s->async->events |= COMEDI_CB_ERROR;
-			c = 0;
-		}
-
-		for (i = 0; i < c; i++) {
-			lval = me4000_ai_get_sample(dev, s);
-			if (!comedi_buf_write_samples(s, &lval, 1))
-				break;
-		}
-
-		/* Work is done, so reset the interrupt */
-		tmp |= ME4000_AI_CTRL_HF_IRQ_RESET;
-		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
-		tmp &= ~ME4000_AI_CTRL_HF_IRQ_RESET;
-		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
-	}
-
-	if (inl(dev->iobase + ME4000_IRQ_STATUS_REG) &
-	    ME4000_IRQ_STATUS_SC) {
-		/* Acquisition is complete */
-		s->async->events |= COMEDI_CB_EOA;
-
-		/* Poll data until fifo empty */
-		while (inl(dev->iobase + ME4000_AI_STATUS_REG) &
-		       ME4000_AI_STATUS_EF_DATA) {
-			lval = me4000_ai_get_sample(dev, s);
-			if (!comedi_buf_write_samples(s, &lval, 1))
-				break;
-		}
-
-		/* Work is done, so reset the interrupt */
-		tmp = inl(dev->iobase + ME4000_AI_CTRL_REG);
-		tmp |= ME4000_AI_CTRL_SC_IRQ_RESET;
-		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
-		tmp &= ~ME4000_AI_CTRL_SC_IRQ_RESET;
-		outl(tmp, dev->iobase + ME4000_AI_CTRL_REG);
-	}
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int me4000_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int tmp;
-
-	/* Stop any running conversion */
-	tmp = inl(dev->iobase + ME4000_AO_CTRL_REG(chan));
-	tmp |= ME4000_AO_CTRL_IMMEDIATE_STOP;
-	outl(tmp, dev->iobase + ME4000_AO_CTRL_REG(chan));
-
-	/* Clear control register and set to single mode */
-	outl(0x0, dev->iobase + ME4000_AO_CTRL_REG(chan));
-
-	/* Write data value */
-	outl(data[0], dev->iobase + ME4000_AO_SINGLE_REG(chan));
-
-	/* Store in the mirror */
-	s->readback[chan] = data[0];
-
-	return 1;
-}
-
-static int me4000_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		outl((s->state >> 0) & 0xFF,
-		     dev->iobase + ME4000_DIO_PORT_0_REG);
-		outl((s->state >> 8) & 0xFF,
-		     dev->iobase + ME4000_DIO_PORT_1_REG);
-		outl((s->state >> 16) & 0xFF,
-		     dev->iobase + ME4000_DIO_PORT_2_REG);
-		outl((s->state >> 24) & 0xFF,
-		     dev->iobase + ME4000_DIO_PORT_3_REG);
-	}
-
-	data[1] = ((inl(dev->iobase + ME4000_DIO_PORT_0_REG) & 0xFF) << 0) |
-		  ((inl(dev->iobase + ME4000_DIO_PORT_1_REG) & 0xFF) << 8) |
-		  ((inl(dev->iobase + ME4000_DIO_PORT_2_REG) & 0xFF) << 16) |
-		  ((inl(dev->iobase + ME4000_DIO_PORT_3_REG) & 0xFF) << 24);
-
-	return insn->n;
-}
-
-static int me4000_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	unsigned int tmp;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x000000ff;
-	else if (chan < 16)
-		mask = 0x0000ff00;
-	else if (chan < 24)
-		mask = 0x00ff0000;
-	else
-		mask = 0xff000000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	tmp = inl(dev->iobase + ME4000_DIO_CTRL_REG);
-	tmp &= ~(ME4000_DIO_CTRL_MODE_0 | ME4000_DIO_CTRL_MODE_1 |
-		 ME4000_DIO_CTRL_MODE_2 | ME4000_DIO_CTRL_MODE_3 |
-		 ME4000_DIO_CTRL_MODE_4 | ME4000_DIO_CTRL_MODE_5 |
-		 ME4000_DIO_CTRL_MODE_6 | ME4000_DIO_CTRL_MODE_7);
-	if (s->io_bits & 0x000000ff)
-		tmp |= ME4000_DIO_CTRL_MODE_0;
-	if (s->io_bits & 0x0000ff00)
-		tmp |= ME4000_DIO_CTRL_MODE_2;
-	if (s->io_bits & 0x00ff0000)
-		tmp |= ME4000_DIO_CTRL_MODE_4;
-	if (s->io_bits & 0xff000000)
-		tmp |= ME4000_DIO_CTRL_MODE_6;
-
-	/*
-	 * Check for optoisolated ME-4000 version.
-	 * If one the first port is a fixed output
-	 * port and the second is a fixed input port.
-	 */
-	if (inl(dev->iobase + ME4000_DIO_DIR_REG)) {
-		s->io_bits |= 0x000000ff;
-		s->io_bits &= ~0x0000ff00;
-		tmp |= ME4000_DIO_CTRL_MODE_0;
-		tmp &= ~(ME4000_DIO_CTRL_MODE_2 | ME4000_DIO_CTRL_MODE_3);
-	}
-
-	outl(tmp, dev->iobase + ME4000_DIO_CTRL_REG);
-
-	return insn->n;
-}
-
-static int me4000_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct me4000_board *board = NULL;
-	struct me4000_private *devpriv;
-	struct comedi_subdevice *s;
-	int result;
-
-	if (context < ARRAY_SIZE(me4000_boards))
-		board = &me4000_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	result = comedi_pci_enable(dev);
-	if (result)
-		return result;
-
-	devpriv->plx_regbase = pci_resource_start(pcidev, 1);
-	dev->iobase = pci_resource_start(pcidev, 2);
-	if (!devpriv->plx_regbase || !dev->iobase)
-		return -ENODEV;
-
-	result = comedi_load_firmware(dev, &pcidev->dev, ME4000_FIRMWARE,
-				      me4000_xilinx_download, 0);
-	if (result < 0)
-		return result;
-
-	me4000_reset(dev);
-
-	if (pcidev->irq > 0) {
-		result = request_irq(pcidev->irq, me4000_ai_isr, IRQF_SHARED,
-				     dev->board_name, dev);
-		if (result == 0) {
-			dev->irq = pcidev->irq;
-
-			/* Enable interrupts on the PLX */
-			outl(PLX9052_INTCSR_LI1ENAB | PLX9052_INTCSR_LI1POL |
-			     PLX9052_INTCSR_PCIENAB,
-			     devpriv->plx_regbase + PLX9052_INTCSR);
-		}
-	}
-
-	result = comedi_alloc_subdevices(dev, 4);
-	if (result)
-		return result;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND;
-	if (board->can_do_diff_ai)
-		s->subdev_flags	|= SDF_DIFF;
-	s->n_chan	= board->ai_nchan;
-	s->maxdata	= 0xffff;
-	s->len_chanlist	= ME4000_AI_CHANNEL_LIST_COUNT;
-	s->range_table	= &me4000_ai_range;
-	s->insn_read	= me4000_ai_insn_read;
-
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->cancel	= me4000_ai_cancel;
-		s->do_cmdtest	= me4000_ai_do_cmd_test;
-		s->do_cmd	= me4000_ai_do_cmd;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	if (board->has_ao) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_COMMON | SDF_GROUND;
-		s->n_chan	= 4;
-		s->maxdata	= 0xffff;
-		s->range_table	= &range_bipolar10;
-		s->insn_write	= me4000_ao_insn_write;
-
-		result = comedi_alloc_subdev_readback(s);
-		if (result)
-			return result;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 32;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= me4000_dio_insn_bits;
-	s->insn_config	= me4000_dio_insn_config;
-
-	/*
-	 * Check for optoisolated ME-4000 version. If one the first
-	 * port is a fixed output port and the second is a fixed input port.
-	 */
-	if (!inl(dev->iobase + ME4000_DIO_DIR_REG)) {
-		s->io_bits |= 0xFF;
-		outl(ME4000_DIO_CTRL_MODE_0,
-		     dev->iobase + ME4000_DIO_DIR_REG);
-	}
-
-	/* Counter subdevice (8254) */
-	s = &dev->subdevices[3];
-	if (board->has_counter) {
-		unsigned long timer_base = pci_resource_start(pcidev, 3);
-
-		if (!timer_base)
-			return -ENODEV;
-
-		dev->pacer = comedi_8254_init(timer_base, 0, I8254_IO8, 0);
-		if (!dev->pacer)
-			return -ENOMEM;
-
-		comedi_8254_subdevice_init(s, dev->pacer);
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	return 0;
-}
-
-static void me4000_detach(struct comedi_device *dev)
-{
-	if (dev->irq) {
-		struct me4000_private *devpriv = dev->private;
-
-		/* Disable interrupts on the PLX */
-		outl(0, devpriv->plx_regbase + PLX9052_INTCSR);
-	}
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver me4000_driver = {
-	.driver_name	= "me4000",
-	.module		= THIS_MODULE,
-	.auto_attach	= me4000_auto_attach,
-	.detach		= me4000_detach,
-};
-
-static int me4000_pci_probe(struct pci_dev *dev,
-			    const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &me4000_driver, id->driver_data);
-}
-
-static const struct pci_device_id me4000_pci_table[] = {
-	{ PCI_VDEVICE(MEILHAUS, 0x4650), BOARD_ME4650 },
-	{ PCI_VDEVICE(MEILHAUS, 0x4660), BOARD_ME4660 },
-	{ PCI_VDEVICE(MEILHAUS, 0x4661), BOARD_ME4660I },
-	{ PCI_VDEVICE(MEILHAUS, 0x4662), BOARD_ME4660S },
-	{ PCI_VDEVICE(MEILHAUS, 0x4663), BOARD_ME4660IS },
-	{ PCI_VDEVICE(MEILHAUS, 0x4670), BOARD_ME4670 },
-	{ PCI_VDEVICE(MEILHAUS, 0x4671), BOARD_ME4670I },
-	{ PCI_VDEVICE(MEILHAUS, 0x4672), BOARD_ME4670S },
-	{ PCI_VDEVICE(MEILHAUS, 0x4673), BOARD_ME4670IS },
-	{ PCI_VDEVICE(MEILHAUS, 0x4680), BOARD_ME4680 },
-	{ PCI_VDEVICE(MEILHAUS, 0x4681), BOARD_ME4680I },
-	{ PCI_VDEVICE(MEILHAUS, 0x4682), BOARD_ME4680S },
-	{ PCI_VDEVICE(MEILHAUS, 0x4683), BOARD_ME4680IS },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, me4000_pci_table);
-
-static struct pci_driver me4000_pci_driver = {
-	.name		= "me4000",
-	.id_table	= me4000_pci_table,
-	.probe		= me4000_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(me4000_driver, me4000_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Meilhaus ME-4000 series boards");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(ME4000_FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
deleted file mode 100644
index 9ea1ba4b1b6f..000000000000
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ /dev/null
@@ -1,582 +0,0 @@
-/*
- * comedi/drivers/me_daq.c
- * Hardware driver for Meilhaus data acquisition cards:
- *   ME-2000i, ME-2600i, ME-3000vm1
- *
- * Copyright (C) 2002 Michael Hillmann <hillmann@syscongroup.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: me_daq
- * Description: Meilhaus PCI data acquisition cards
- * Devices: [Meilhaus] ME-2600i (me-2600i), ME-2000i (me-2000i)
- * Author: Michael Hillmann <hillmann@syscongroup.de>
- * Status: experimental
- *
- * Configuration options: not applicable, uses PCI auto config
- *
- * Supports:
- *    Analog Input, Analog Output, Digital I/O
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-
-#include "../comedi_pci.h"
-
-#include "plx9052.h"
-
-#define ME2600_FIRMWARE		"me2600_firmware.bin"
-
-#define XILINX_DOWNLOAD_RESET	0x42	/* Xilinx registers */
-
-#define ME_CONTROL_1			0x0000	/* - | W */
-#define   INTERRUPT_ENABLE		(1<<15)
-#define   COUNTER_B_IRQ			(1<<12)
-#define   COUNTER_A_IRQ			(1<<11)
-#define   CHANLIST_READY_IRQ		(1<<10)
-#define   EXT_IRQ			(1<<9)
-#define   ADFIFO_HALFFULL_IRQ		(1<<8)
-#define   SCAN_COUNT_ENABLE		(1<<5)
-#define   SIMULTANEOUS_ENABLE		(1<<4)
-#define   TRIGGER_FALLING_EDGE		(1<<3)
-#define   CONTINUOUS_MODE		(1<<2)
-#define   DISABLE_ADC			(0<<0)
-#define   SOFTWARE_TRIGGERED_ADC	(1<<0)
-#define   SCAN_TRIGGERED_ADC		(2<<0)
-#define   EXT_TRIGGERED_ADC		(3<<0)
-#define ME_ADC_START			0x0000	/* R | - */
-#define ME_CONTROL_2			0x0002	/* - | W */
-#define   ENABLE_ADFIFO			(1<<10)
-#define   ENABLE_CHANLIST		(1<<9)
-#define   ENABLE_PORT_B			(1<<7)
-#define   ENABLE_PORT_A			(1<<6)
-#define   ENABLE_COUNTER_B		(1<<4)
-#define   ENABLE_COUNTER_A		(1<<3)
-#define   ENABLE_DAC			(1<<1)
-#define   BUFFERED_DAC			(1<<0)
-#define ME_DAC_UPDATE			0x0002	/* R | - */
-#define ME_STATUS			0x0004	/* R | - */
-#define   COUNTER_B_IRQ_PENDING		(1<<12)
-#define   COUNTER_A_IRQ_PENDING		(1<<11)
-#define   CHANLIST_READY_IRQ_PENDING	(1<<10)
-#define   EXT_IRQ_PENDING		(1<<9)
-#define   ADFIFO_HALFFULL_IRQ_PENDING	(1<<8)
-#define   ADFIFO_FULL			(1<<4)
-#define   ADFIFO_HALFFULL		(1<<3)
-#define   ADFIFO_EMPTY			(1<<2)
-#define   CHANLIST_FULL			(1<<1)
-#define   FST_ACTIVE			(1<<0)
-#define ME_RESET_INTERRUPT		0x0004	/* - | W */
-#define ME_DIO_PORT_A			0x0006	/* R | W */
-#define ME_DIO_PORT_B			0x0008	/* R | W */
-#define ME_TIMER_DATA_0			0x000A	/* - | W */
-#define ME_TIMER_DATA_1			0x000C	/* - | W */
-#define ME_TIMER_DATA_2			0x000E	/* - | W */
-#define ME_CHANNEL_LIST			0x0010	/* - | W */
-#define   ADC_UNIPOLAR			(1<<6)
-#define   ADC_GAIN_0			(0<<4)
-#define   ADC_GAIN_1			(1<<4)
-#define   ADC_GAIN_2			(2<<4)
-#define   ADC_GAIN_3			(3<<4)
-#define ME_READ_AD_FIFO			0x0010	/* R | - */
-#define ME_DAC_CONTROL			0x0012	/* - | W */
-#define   DAC_UNIPOLAR_D		(0<<4)
-#define   DAC_BIPOLAR_D			(1<<4)
-#define   DAC_UNIPOLAR_C		(0<<5)
-#define   DAC_BIPOLAR_C			(1<<5)
-#define   DAC_UNIPOLAR_B		(0<<6)
-#define   DAC_BIPOLAR_B			(1<<6)
-#define   DAC_UNIPOLAR_A		(0<<7)
-#define   DAC_BIPOLAR_A			(1<<7)
-#define   DAC_GAIN_0_D			(0<<8)
-#define   DAC_GAIN_1_D			(1<<8)
-#define   DAC_GAIN_0_C			(0<<9)
-#define   DAC_GAIN_1_C			(1<<9)
-#define   DAC_GAIN_0_B			(0<<10)
-#define   DAC_GAIN_1_B			(1<<10)
-#define   DAC_GAIN_0_A			(0<<11)
-#define   DAC_GAIN_1_A			(1<<11)
-#define ME_DAC_CONTROL_UPDATE		0x0012	/* R | - */
-#define ME_DAC_DATA_A			0x0014	/* - | W */
-#define ME_DAC_DATA_B			0x0016	/* - | W */
-#define ME_DAC_DATA_C			0x0018	/* - | W */
-#define ME_DAC_DATA_D			0x001A	/* - | W */
-#define ME_COUNTER_ENDDATA_A		0x001C	/* - | W */
-#define ME_COUNTER_ENDDATA_B		0x001E	/* - | W */
-#define ME_COUNTER_STARTDATA_A		0x0020	/* - | W */
-#define ME_COUNTER_VALUE_A		0x0020	/* R | - */
-#define ME_COUNTER_STARTDATA_B		0x0022	/* - | W */
-#define ME_COUNTER_VALUE_B		0x0022	/* R | - */
-
-static const struct comedi_lrange me_ai_range = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange me_ao_range = {
-	3, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-enum me_boardid {
-	BOARD_ME2600,
-	BOARD_ME2000,
-};
-
-struct me_board {
-	const char *name;
-	int needs_firmware;
-	int has_ao;
-};
-
-static const struct me_board me_boards[] = {
-	[BOARD_ME2600] = {
-		.name		= "me-2600i",
-		.needs_firmware	= 1,
-		.has_ao		= 1,
-	},
-	[BOARD_ME2000] = {
-		.name		= "me-2000i",
-	},
-};
-
-struct me_private_data {
-	void __iomem *plx_regbase;	/* PLX configuration base address */
-
-	unsigned short control_1;	/* Mirror of CONTROL_1 register */
-	unsigned short control_2;	/* Mirror of CONTROL_2 register */
-	unsigned short dac_control;	/* Mirror of the DAC_CONTROL register */
-};
-
-static inline void sleep(unsigned sec)
-{
-	schedule_timeout_interruptible(sec * HZ);
-}
-
-static int me_dio_insn_config(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	struct me_private_data *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 16)
-		mask = 0x0000ffff;
-	else
-		mask = 0xffff0000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	if (s->io_bits & 0x0000ffff)
-		devpriv->control_2 |= ENABLE_PORT_A;
-	else
-		devpriv->control_2 &= ~ENABLE_PORT_A;
-	if (s->io_bits & 0xffff0000)
-		devpriv->control_2 |= ENABLE_PORT_B;
-	else
-		devpriv->control_2 &= ~ENABLE_PORT_B;
-
-	writew(devpriv->control_2, dev->mmio + ME_CONTROL_2);
-
-	return insn->n;
-}
-
-static int me_dio_insn_bits(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	void __iomem *mmio_porta = dev->mmio + ME_DIO_PORT_A;
-	void __iomem *mmio_portb = dev->mmio + ME_DIO_PORT_B;
-	unsigned int mask;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0x0000ffff)
-			writew((s->state & 0xffff), mmio_porta);
-		if (mask & 0xffff0000)
-			writew(((s->state >> 16) & 0xffff), mmio_portb);
-	}
-
-	if (s->io_bits & 0x0000ffff)
-		val = s->state & 0xffff;
-	else
-		val = readw(mmio_porta);
-
-	if (s->io_bits & 0xffff0000)
-		val |= (s->state & 0xffff0000);
-	else
-		val |= (readw(mmio_portb) << 16);
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int me_ai_eoc(struct comedi_device *dev,
-		     struct comedi_subdevice *s,
-		     struct comedi_insn *insn,
-		     unsigned long context)
-{
-	unsigned int status;
-
-	status = readw(dev->mmio + ME_STATUS);
-	if ((status & 0x0004) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int me_ai_insn_read(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned int *data)
-{
-	struct me_private_data *dev_private = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int rang = CR_RANGE(insn->chanspec);
-	unsigned int aref = CR_AREF(insn->chanspec);
-	unsigned short val;
-	int ret;
-
-	/* stop any running conversion */
-	dev_private->control_1 &= 0xFFFC;
-	writew(dev_private->control_1, dev->mmio + ME_CONTROL_1);
-
-	/* clear chanlist and ad fifo */
-	dev_private->control_2 &= ~(ENABLE_ADFIFO | ENABLE_CHANLIST);
-	writew(dev_private->control_2, dev->mmio + ME_CONTROL_2);
-
-	/* reset any pending interrupt */
-	writew(0x00, dev->mmio + ME_RESET_INTERRUPT);
-
-	/* enable the chanlist and ADC fifo */
-	dev_private->control_2 |= (ENABLE_ADFIFO | ENABLE_CHANLIST);
-	writew(dev_private->control_2, dev->mmio + ME_CONTROL_2);
-
-	/* write to channel list fifo */
-	val = chan & 0x0f;			/* b3:b0 channel */
-	val |= (rang & 0x03) << 4;		/* b5:b4 gain */
-	val |= (rang & 0x04) << 4;		/* b6 polarity */
-	val |= ((aref & AREF_DIFF) ? 0x80 : 0);	/* b7 differential */
-	writew(val & 0xff, dev->mmio + ME_CHANNEL_LIST);
-
-	/* set ADC mode to software trigger */
-	dev_private->control_1 |= SOFTWARE_TRIGGERED_ADC;
-	writew(dev_private->control_1, dev->mmio + ME_CONTROL_1);
-
-	/* start conversion by reading from ADC_START */
-	readw(dev->mmio + ME_ADC_START);
-
-	/* wait for ADC fifo not empty flag */
-	ret = comedi_timeout(dev, s, insn, me_ai_eoc, 0);
-	if (ret)
-		return ret;
-
-	/* get value from ADC fifo */
-	val = readw(dev->mmio + ME_READ_AD_FIFO);
-	val = (val ^ 0x800) & 0x0fff;
-	data[0] = val;
-
-	/* stop any running conversion */
-	dev_private->control_1 &= 0xFFFC;
-	writew(dev_private->control_1, dev->mmio + ME_CONTROL_1);
-
-	return 1;
-}
-
-static int me_ao_insn_write(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	struct me_private_data *dev_private = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int rang = CR_RANGE(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	/* Enable all DAC */
-	dev_private->control_2 |= ENABLE_DAC;
-	writew(dev_private->control_2, dev->mmio + ME_CONTROL_2);
-
-	/* and set DAC to "buffered" mode */
-	dev_private->control_2 |= BUFFERED_DAC;
-	writew(dev_private->control_2, dev->mmio + ME_CONTROL_2);
-
-	/* Set dac-control register */
-	for (i = 0; i < insn->n; i++) {
-		/* clear bits for this channel */
-		dev_private->dac_control &= ~(0x0880 >> chan);
-		if (rang == 0)
-			dev_private->dac_control |=
-			    ((DAC_BIPOLAR_A | DAC_GAIN_1_A) >> chan);
-		else if (rang == 1)
-			dev_private->dac_control |=
-			    ((DAC_BIPOLAR_A | DAC_GAIN_0_A) >> chan);
-	}
-	writew(dev_private->dac_control, dev->mmio + ME_DAC_CONTROL);
-
-	/* Update dac-control register */
-	readw(dev->mmio + ME_DAC_CONTROL_UPDATE);
-
-	/* Set data register */
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		writew(val, dev->mmio + ME_DAC_DATA_A + (chan << 1));
-	}
-	s->readback[chan] = val;
-
-	/* Update dac with data registers */
-	readw(dev->mmio + ME_DAC_UPDATE);
-
-	return insn->n;
-}
-
-static int me2600_xilinx_download(struct comedi_device *dev,
-				  const u8 *data, size_t size,
-				  unsigned long context)
-{
-	struct me_private_data *dev_private = dev->private;
-	unsigned int value;
-	unsigned int file_length;
-	unsigned int i;
-
-	/* disable irq's on PLX */
-	writel(0x00, dev_private->plx_regbase + PLX9052_INTCSR);
-
-	/* First, make a dummy read to reset xilinx */
-	value = readw(dev->mmio + XILINX_DOWNLOAD_RESET);
-
-	/* Wait until reset is over */
-	sleep(1);
-
-	/* Write a dummy value to Xilinx */
-	writeb(0x00, dev->mmio + 0x0);
-	sleep(1);
-
-	/*
-	 * Format of the firmware
-	 * Build longs from the byte-wise coded header
-	 * Byte 1-3:   length of the array
-	 * Byte 4-7:   version
-	 * Byte 8-11:  date
-	 * Byte 12-15: reserved
-	 */
-	if (size < 16)
-		return -EINVAL;
-
-	file_length = (((unsigned int)data[0] & 0xff) << 24) +
-	    (((unsigned int)data[1] & 0xff) << 16) +
-	    (((unsigned int)data[2] & 0xff) << 8) +
-	    ((unsigned int)data[3] & 0xff);
-
-	/*
-	 * Loop for writing firmware byte by byte to xilinx
-	 * Firmware data start at offset 16
-	 */
-	for (i = 0; i < file_length; i++)
-		writeb((data[16 + i] & 0xff), dev->mmio + 0x0);
-
-	/* Write 5 dummy values to xilinx */
-	for (i = 0; i < 5; i++)
-		writeb(0x00, dev->mmio + 0x0);
-
-	/* Test if there was an error during download -> INTB was thrown */
-	value = readl(dev_private->plx_regbase + PLX9052_INTCSR);
-	if (value & PLX9052_INTCSR_LI2STAT) {
-		/* Disable interrupt */
-		writel(0x00, dev_private->plx_regbase + PLX9052_INTCSR);
-		dev_err(dev->class_dev, "Xilinx download failed\n");
-		return -EIO;
-	}
-
-	/* Wait until the Xilinx is ready for real work */
-	sleep(1);
-
-	/* Enable PLX-Interrupts */
-	writel(PLX9052_INTCSR_LI1ENAB |
-	       PLX9052_INTCSR_LI1POL |
-	       PLX9052_INTCSR_PCIENAB,
-	       dev_private->plx_regbase + PLX9052_INTCSR);
-
-	return 0;
-}
-
-static int me_reset(struct comedi_device *dev)
-{
-	struct me_private_data *dev_private = dev->private;
-
-	/* Reset board */
-	writew(0x00, dev->mmio + ME_CONTROL_1);
-	writew(0x00, dev->mmio + ME_CONTROL_2);
-	writew(0x00, dev->mmio + ME_RESET_INTERRUPT);
-	writew(0x00, dev->mmio + ME_DAC_CONTROL);
-
-	/* Save values in the board context */
-	dev_private->dac_control = 0;
-	dev_private->control_1 = 0;
-	dev_private->control_2 = 0;
-
-	return 0;
-}
-
-static int me_auto_attach(struct comedi_device *dev,
-			  unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct me_board *board = NULL;
-	struct me_private_data *dev_private;
-	struct comedi_subdevice *s;
-	int ret;
-
-	if (context < ARRAY_SIZE(me_boards))
-		board = &me_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	dev_private = comedi_alloc_devpriv(dev, sizeof(*dev_private));
-	if (!dev_private)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev_private->plx_regbase = pci_ioremap_bar(pcidev, 0);
-	if (!dev_private->plx_regbase)
-		return -ENOMEM;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 2);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	/* Download firmware and reset card */
-	if (board->needs_firmware) {
-		ret = comedi_load_firmware(dev, &comedi_to_pci_dev(dev)->dev,
-					   ME2600_FIRMWARE,
-					   me2600_xilinx_download, 0);
-		if (ret < 0)
-			return ret;
-	}
-	me_reset(dev);
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_COMMON;
-	s->n_chan	= 16;
-	s->maxdata	= 0x0fff;
-	s->len_chanlist	= 16;
-	s->range_table	= &me_ai_range;
-	s->insn_read	= me_ai_insn_read;
-
-	s = &dev->subdevices[1];
-	if (board->has_ao) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_COMMON;
-		s->n_chan	= 4;
-		s->maxdata	= 0x0fff;
-		s->len_chanlist	= 4;
-		s->range_table	= &me_ao_range;
-		s->insn_write	= me_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 32;
-	s->maxdata	= 1;
-	s->len_chanlist	= 32;
-	s->range_table	= &range_digital;
-	s->insn_bits	= me_dio_insn_bits;
-	s->insn_config	= me_dio_insn_config;
-
-	return 0;
-}
-
-static void me_detach(struct comedi_device *dev)
-{
-	struct me_private_data *dev_private = dev->private;
-
-	if (dev_private) {
-		if (dev->mmio)
-			me_reset(dev);
-		if (dev_private->plx_regbase)
-			iounmap(dev_private->plx_regbase);
-	}
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver me_daq_driver = {
-	.driver_name	= "me_daq",
-	.module		= THIS_MODULE,
-	.auto_attach	= me_auto_attach,
-	.detach		= me_detach,
-};
-
-static int me_daq_pci_probe(struct pci_dev *dev,
-			    const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &me_daq_driver, id->driver_data);
-}
-
-static const struct pci_device_id me_daq_pci_table[] = {
-	{ PCI_VDEVICE(MEILHAUS, 0x2600), BOARD_ME2600 },
-	{ PCI_VDEVICE(MEILHAUS, 0x2000), BOARD_ME2000 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, me_daq_pci_table);
-
-static struct pci_driver me_daq_pci_driver = {
-	.name		= "me_daq",
-	.id_table	= me_daq_pci_table,
-	.probe		= me_daq_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(me_daq_driver, me_daq_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(ME2600_FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/mf6x4.c b/drivers/staging/comedi/drivers/mf6x4.c
deleted file mode 100644
index a675e2ef9b45..000000000000
--- a/drivers/staging/comedi/drivers/mf6x4.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- *  comedi/drivers/mf6x4.c
- *  Driver for Humusoft MF634 and MF624 Data acquisition cards
- *
- *  COMEDI - Linux Control and Measurement Device Interface
- *  Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- */
-/*
- * Driver: mf6x4
- * Description: Humusoft MF634 and MF624 Data acquisition card driver
- * Devices: [Humusoft] MF634 (mf634), MF624 (mf624)
- * Author: Rostislav Lisovy <lisovy@gmail.com>
- * Status: works
- * Updated:
- * Configuration Options: none
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include "../comedi_pci.h"
-
-/* Registers present in BAR0 memory region */
-#define MF624_GPIOC_R					0x54
-
-#define MF6X4_GPIOC_EOLC /* End Of Last Conversion */	(1 << 17)
-#define MF6X4_GPIOC_LDAC /* Load DACs */		(1 << 23)
-#define MF6X4_GPIOC_DACEN				(1 << 26)
-
-/* BAR1 registers */
-#define MF6X4_DIN_R					0x10
-#define MF6X4_DIN_M					0xff
-#define MF6X4_DOUT_R					0x10
-#define MF6X4_DOUT_M					0xff
-
-#define MF6X4_ADSTART_R					0x20
-#define MF6X4_ADDATA_R					0x00
-#define MF6X4_ADCTRL_R					0x00
-#define MF6X4_ADCTRL_M					0xff
-
-#define MF6X4_DA0_R					0x20
-#define MF6X4_DA1_R					0x22
-#define MF6X4_DA2_R					0x24
-#define MF6X4_DA3_R					0x26
-#define MF6X4_DA4_R					0x28
-#define MF6X4_DA5_R					0x2a
-#define MF6X4_DA6_R					0x2c
-#define MF6X4_DA7_R					0x2e
-/* Map DAC cahnnel id to real HW-dependent offset value */
-#define MF6X4_DAC_R(x)					(0x20 + ((x) * 2))
-
-/* BAR2 registers */
-#define MF634_GPIOC_R					0x68
-
-enum mf6x4_boardid {
-	BOARD_MF634,
-	BOARD_MF624,
-};
-
-struct mf6x4_board {
-	const char *name;
-	unsigned int bar_nums[3]; /* We need to keep track of the
-				     order of BARs used by the cards */
-};
-
-static const struct mf6x4_board mf6x4_boards[] = {
-	[BOARD_MF634] = {
-		.name           = "mf634",
-		.bar_nums	= {0, 2, 3},
-	},
-	[BOARD_MF624] = {
-		.name           = "mf624",
-		.bar_nums	= {0, 2, 4},
-	},
-};
-
-struct mf6x4_private {
-	/*
-	 * Documentation for both MF634 and MF624 describes registers
-	 * present in BAR0, 1 and 2 regions.
-	 * The real (i.e. in HW) BAR numbers are different for MF624
-	 * and MF634 yet we will call them 0, 1, 2
-	 */
-	void __iomem *bar0_mem;
-	void __iomem *bar2_mem;
-
-	/*
-	 * This configuration register has the same function and fields
-	 * for both cards however it lies in different BARs on different
-	 * offsets -- this variable makes the access easier
-	 */
-	void __iomem *gpioc_R;
-};
-
-static int mf6x4_di_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	data[1] = ioread16(dev->mmio + MF6X4_DIN_R) & MF6X4_DIN_M;
-
-	return insn->n;
-}
-
-static int mf6x4_do_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		iowrite16(s->state & MF6X4_DOUT_M, dev->mmio + MF6X4_DOUT_R);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int mf6x4_ai_eoc(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned long context)
-{
-	struct mf6x4_private *devpriv = dev->private;
-	unsigned int status;
-
-	status = ioread32(devpriv->gpioc_R);
-	if (status & MF6X4_GPIOC_EOLC)
-		return 0;
-	return -EBUSY;
-}
-
-static int mf6x4_ai_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	int chan = CR_CHAN(insn->chanspec);
-	int ret;
-	int i;
-	int d;
-
-	/* Set the ADC channel number in the scan list */
-	iowrite16((1 << chan) & MF6X4_ADCTRL_M, dev->mmio + MF6X4_ADCTRL_R);
-
-	for (i = 0; i < insn->n; i++) {
-		/* Trigger ADC conversion by reading ADSTART */
-		ioread16(dev->mmio + MF6X4_ADSTART_R);
-
-		ret = comedi_timeout(dev, s, insn, mf6x4_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* Read the actual value */
-		d = ioread16(dev->mmio + MF6X4_ADDATA_R);
-		d &= s->maxdata;
-		data[i] = d;
-	}
-
-	iowrite16(0x0, dev->mmio + MF6X4_ADCTRL_R);
-
-	return insn->n;
-}
-
-static int mf6x4_ao_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct mf6x4_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	uint32_t gpioc;
-	int i;
-
-	/* Enable instantaneous update of converters outputs + Enable DACs */
-	gpioc = ioread32(devpriv->gpioc_R);
-	iowrite32((gpioc & ~MF6X4_GPIOC_LDAC) | MF6X4_GPIOC_DACEN,
-		  devpriv->gpioc_R);
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		iowrite16(val, dev->mmio + MF6X4_DAC_R(chan));
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int mf6x4_auto_attach(struct comedi_device *dev, unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct mf6x4_board *board = NULL;
-	struct mf6x4_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	if (context < ARRAY_SIZE(mf6x4_boards))
-		board = &mf6x4_boards[context];
-	else
-		return -ENODEV;
-
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	devpriv->bar0_mem = pci_ioremap_bar(pcidev, board->bar_nums[0]);
-	if (!devpriv->bar0_mem)
-		return -ENODEV;
-
-	dev->mmio = pci_ioremap_bar(pcidev, board->bar_nums[1]);
-	if (!dev->mmio)
-		return -ENODEV;
-
-	devpriv->bar2_mem = pci_ioremap_bar(pcidev, board->bar_nums[2]);
-	if (!devpriv->bar2_mem)
-		return -ENODEV;
-
-	if (board == &mf6x4_boards[BOARD_MF634])
-		devpriv->gpioc_R = devpriv->bar2_mem + MF634_GPIOC_R;
-	else
-		devpriv->gpioc_R = devpriv->bar0_mem + MF624_GPIOC_R;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* ADC */
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = 8;
-	s->maxdata = 0x3fff; /* 14 bits ADC */
-	s->range_table = &range_bipolar10;
-	s->insn_read = mf6x4_ai_insn_read;
-
-	/* DAC */
-	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 0x3fff; /* 14 bits DAC */
-	s->range_table = &range_bipolar10;
-	s->insn_write = mf6x4_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* DIN */
-	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = mf6x4_di_insn_bits;
-
-	/* DOUT */
-	s = &dev->subdevices[3];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = mf6x4_do_insn_bits;
-
-	return 0;
-}
-
-static void mf6x4_detach(struct comedi_device *dev)
-{
-	struct mf6x4_private *devpriv = dev->private;
-
-	if (devpriv) {
-		if (devpriv->bar0_mem)
-			iounmap(devpriv->bar0_mem);
-		if (devpriv->bar2_mem)
-			iounmap(devpriv->bar2_mem);
-	}
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver mf6x4_driver = {
-	.driver_name    = "mf6x4",
-	.module         = THIS_MODULE,
-	.auto_attach    = mf6x4_auto_attach,
-	.detach         = mf6x4_detach,
-};
-
-static int mf6x4_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &mf6x4_driver, id->driver_data);
-}
-
-static const struct pci_device_id mf6x4_pci_table[] = {
-	{ PCI_VDEVICE(HUMUSOFT, 0x0634), BOARD_MF634 },
-	{ PCI_VDEVICE(HUMUSOFT, 0x0624), BOARD_MF624 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, mf6x4_pci_table);
-
-static struct pci_driver mf6x4_pci_driver = {
-	.name           = "mf6x4",
-	.id_table       = mf6x4_pci_table,
-	.probe          = mf6x4_pci_probe,
-	.remove         = comedi_pci_auto_unconfig,
-};
-
-module_comedi_pci_driver(mf6x4_driver, mf6x4_pci_driver);
-
-MODULE_AUTHOR("Rostislav Lisovy <lisovy@gmail.com>");
-MODULE_DESCRIPTION("Comedi MF634 and MF624 DAQ cards driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c
deleted file mode 100644
index fa7ae2c04556..000000000000
--- a/drivers/staging/comedi/drivers/mite.c
+++ /dev/null
@@ -1,628 +0,0 @@
-/*
- * comedi/drivers/mite.c
- * Hardware driver for NI Mite PCI interface chip
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-2002 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * The PCI-MIO E series driver was originally written by
- * Tomasz Motylewski <...>, and ported to comedi by ds.
- *
- * References for specifications:
- *
- *    321747b.pdf  Register Level Programmer Manual (obsolete)
- *    321747c.pdf  Register Level Programmer Manual (new)
- *    DAQ-STC reference manual
- *
- * Other possibly relevant info:
- *
- *    320517c.pdf  User manual (obsolete)
- *    320517f.pdf  User manual (new)
- *    320889a.pdf  delete
- *    320906c.pdf  maximum signal ratings
- *    321066a.pdf  about 16x
- *    321791a.pdf  discontinuation of at-mio-16e-10 rev. c
- *    321808a.pdf  about at-mio-16e-10 rev P
- *    321837a.pdf  discontinuation of at-mio-16de-10 rev d
- *    321838a.pdf  about at-mio-16de-10 rev N
- *
- * ISSUES:
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include "../comedi_pci.h"
-
-#include "mite.h"
-
-#define TOP_OF_PAGE(x) ((x)|(~(PAGE_MASK)))
-
-struct mite_struct *mite_alloc(struct pci_dev *pcidev)
-{
-	struct mite_struct *mite;
-	unsigned int i;
-
-	mite = kzalloc(sizeof(*mite), GFP_KERNEL);
-	if (mite) {
-		spin_lock_init(&mite->lock);
-		mite->pcidev = pcidev;
-		for (i = 0; i < MAX_MITE_DMA_CHANNELS; ++i) {
-			mite->channels[i].mite = mite;
-			mite->channels[i].channel = i;
-			mite->channels[i].done = 1;
-		}
-	}
-	return mite;
-}
-EXPORT_SYMBOL_GPL(mite_alloc);
-
-static void dump_chip_signature(u32 csigr_bits)
-{
-	pr_info("version = %i, type = %i, mite mode = %i, interface mode = %i\n",
-		mite_csigr_version(csigr_bits), mite_csigr_type(csigr_bits),
-		mite_csigr_mmode(csigr_bits), mite_csigr_imode(csigr_bits));
-	pr_info("num channels = %i, write post fifo depth = %i, wins = %i, iowins = %i\n",
-		mite_csigr_dmac(csigr_bits), mite_csigr_wpdep(csigr_bits),
-		mite_csigr_wins(csigr_bits), mite_csigr_iowins(csigr_bits));
-}
-
-static unsigned mite_fifo_size(struct mite_struct *mite, unsigned channel)
-{
-	unsigned fcr_bits = readl(mite->mite_io_addr + MITE_FCR(channel));
-	unsigned empty_count = (fcr_bits >> 16) & 0xff;
-	unsigned full_count = fcr_bits & 0xff;
-
-	return empty_count + full_count;
-}
-
-int mite_setup2(struct comedi_device *dev,
-		struct mite_struct *mite, bool use_win1)
-{
-	unsigned long length;
-	int i;
-	u32 csigr_bits;
-	unsigned unknown_dma_burst_bits;
-
-	pci_set_master(mite->pcidev);
-
-	mite->mite_io_addr = pci_ioremap_bar(mite->pcidev, 0);
-	if (!mite->mite_io_addr) {
-		dev_err(dev->class_dev,
-			"Failed to remap mite io memory address\n");
-		return -ENOMEM;
-	}
-	mite->mite_phys_addr = pci_resource_start(mite->pcidev, 0);
-
-	dev->mmio = pci_ioremap_bar(mite->pcidev, 1);
-	if (!dev->mmio) {
-		dev_err(dev->class_dev,
-			"Failed to remap daq io memory address\n");
-		return -ENOMEM;
-	}
-	mite->daq_phys_addr = pci_resource_start(mite->pcidev, 1);
-	length = pci_resource_len(mite->pcidev, 1);
-
-	if (use_win1) {
-		writel(0, mite->mite_io_addr + MITE_IODWBSR);
-		dev_info(dev->class_dev,
-			 "using I/O Window Base Size register 1\n");
-		writel(mite->daq_phys_addr | WENAB |
-		       MITE_IODWBSR_1_WSIZE_bits(length),
-		       mite->mite_io_addr + MITE_IODWBSR_1);
-		writel(0, mite->mite_io_addr + MITE_IODWCR_1);
-	} else {
-		writel(mite->daq_phys_addr | WENAB,
-		       mite->mite_io_addr + MITE_IODWBSR);
-	}
-	/*
-	 * Make sure dma bursts work. I got this from running a bus analyzer
-	 * on a pxi-6281 and a pxi-6713. 6713 powered up with register value
-	 * of 0x61f and bursts worked. 6281 powered up with register value of
-	 * 0x1f and bursts didn't work. The NI windows driver reads the
-	 * register, then does a bitwise-or of 0x600 with it and writes it back.
-	 */
-	unknown_dma_burst_bits =
-	    readl(mite->mite_io_addr + MITE_UNKNOWN_DMA_BURST_REG);
-	unknown_dma_burst_bits |= UNKNOWN_DMA_BURST_ENABLE_BITS;
-	writel(unknown_dma_burst_bits,
-	       mite->mite_io_addr + MITE_UNKNOWN_DMA_BURST_REG);
-
-	csigr_bits = readl(mite->mite_io_addr + MITE_CSIGR);
-	mite->num_channels = mite_csigr_dmac(csigr_bits);
-	if (mite->num_channels > MAX_MITE_DMA_CHANNELS) {
-		dev_warn(dev->class_dev,
-			 "mite: bug? chip claims to have %i dma channels. Setting to %i.\n",
-			 mite->num_channels, MAX_MITE_DMA_CHANNELS);
-		mite->num_channels = MAX_MITE_DMA_CHANNELS;
-	}
-	dump_chip_signature(csigr_bits);
-	for (i = 0; i < mite->num_channels; i++) {
-		writel(CHOR_DMARESET, mite->mite_io_addr + MITE_CHOR(i));
-		/* disable interrupts */
-		writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | CHCR_CLR_SAR_IE |
-		       CHCR_CLR_DONE_IE | CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE |
-		       CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE,
-		       mite->mite_io_addr + MITE_CHCR(i));
-	}
-	mite->fifo_size = mite_fifo_size(mite, 0);
-	dev_info(dev->class_dev, "fifo size is %i.\n", mite->fifo_size);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(mite_setup2);
-
-void mite_detach(struct mite_struct *mite)
-{
-	if (!mite)
-		return;
-
-	if (mite->mite_io_addr)
-		iounmap(mite->mite_io_addr);
-
-	kfree(mite);
-}
-EXPORT_SYMBOL_GPL(mite_detach);
-
-struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite)
-{
-	struct mite_dma_descriptor_ring *ring =
-	    kmalloc(sizeof(struct mite_dma_descriptor_ring), GFP_KERNEL);
-
-	if (!ring)
-		return NULL;
-	ring->hw_dev = get_device(&mite->pcidev->dev);
-	if (!ring->hw_dev) {
-		kfree(ring);
-		return NULL;
-	}
-	ring->n_links = 0;
-	ring->descriptors = NULL;
-	ring->descriptors_dma_addr = 0;
-	return ring;
-};
-EXPORT_SYMBOL_GPL(mite_alloc_ring);
-
-void mite_free_ring(struct mite_dma_descriptor_ring *ring)
-{
-	if (ring) {
-		if (ring->descriptors) {
-			dma_free_coherent(ring->hw_dev,
-					  ring->n_links *
-					  sizeof(struct mite_dma_descriptor),
-					  ring->descriptors,
-					  ring->descriptors_dma_addr);
-		}
-		put_device(ring->hw_dev);
-		kfree(ring);
-	}
-};
-EXPORT_SYMBOL_GPL(mite_free_ring);
-
-struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite,
-						   struct
-						   mite_dma_descriptor_ring
-						   *ring, unsigned min_channel,
-						   unsigned max_channel)
-{
-	int i;
-	unsigned long flags;
-	struct mite_channel *channel = NULL;
-
-	/*
-	 * spin lock so mite_release_channel can be called safely
-	 * from interrupts
-	 */
-	spin_lock_irqsave(&mite->lock, flags);
-	for (i = min_channel; i <= max_channel; ++i) {
-		if (mite->channel_allocated[i] == 0) {
-			mite->channel_allocated[i] = 1;
-			channel = &mite->channels[i];
-			channel->ring = ring;
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&mite->lock, flags);
-	return channel;
-}
-EXPORT_SYMBOL_GPL(mite_request_channel_in_range);
-
-void mite_release_channel(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-	unsigned long flags;
-
-	/* spin lock to prevent races with mite_request_channel */
-	spin_lock_irqsave(&mite->lock, flags);
-	if (mite->channel_allocated[mite_chan->channel]) {
-		mite_dma_disarm(mite_chan);
-		mite_dma_reset(mite_chan);
-		/*
-		 * disable all channel's interrupts (do it after disarm/reset so
-		 * MITE_CHCR reg isn't changed while dma is still active!)
-		 */
-		writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE |
-		       CHCR_CLR_SAR_IE | CHCR_CLR_DONE_IE |
-		       CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE |
-		       CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE,
-		       mite->mite_io_addr + MITE_CHCR(mite_chan->channel));
-		mite->channel_allocated[mite_chan->channel] = 0;
-		mite_chan->ring = NULL;
-		mmiowb();
-	}
-	spin_unlock_irqrestore(&mite->lock, flags);
-}
-EXPORT_SYMBOL_GPL(mite_release_channel);
-
-void mite_dma_arm(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-	int chor;
-	unsigned long flags;
-
-	/*
-	 * memory barrier is intended to insure any twiddling with the buffer
-	 * is done before writing to the mite to arm dma transfer
-	 */
-	smp_mb();
-	/* arm */
-	chor = CHOR_START;
-	spin_lock_irqsave(&mite->lock, flags);
-	mite_chan->done = 0;
-	writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
-	mmiowb();
-	spin_unlock_irqrestore(&mite->lock, flags);
-	/* mite_dma_tcr(mite, channel); */
-}
-EXPORT_SYMBOL_GPL(mite_dma_arm);
-
-/**************************************/
-
-int mite_buf_change(struct mite_dma_descriptor_ring *ring,
-		    struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	unsigned int n_links;
-	int i;
-
-	if (ring->descriptors) {
-		dma_free_coherent(ring->hw_dev,
-				  ring->n_links *
-				  sizeof(struct mite_dma_descriptor),
-				  ring->descriptors,
-				  ring->descriptors_dma_addr);
-	}
-	ring->descriptors = NULL;
-	ring->descriptors_dma_addr = 0;
-	ring->n_links = 0;
-
-	if (async->prealloc_bufsz == 0)
-		return 0;
-
-	n_links = async->prealloc_bufsz >> PAGE_SHIFT;
-
-	ring->descriptors =
-	    dma_alloc_coherent(ring->hw_dev,
-			       n_links * sizeof(struct mite_dma_descriptor),
-			       &ring->descriptors_dma_addr, GFP_KERNEL);
-	if (!ring->descriptors) {
-		dev_err(s->device->class_dev,
-			"mite: ring buffer allocation failed\n");
-		return -ENOMEM;
-	}
-	ring->n_links = n_links;
-
-	for (i = 0; i < n_links; i++) {
-		ring->descriptors[i].count = cpu_to_le32(PAGE_SIZE);
-		ring->descriptors[i].addr =
-		    cpu_to_le32(async->buf_map->page_list[i].dma_addr);
-		ring->descriptors[i].next =
-		    cpu_to_le32(ring->descriptors_dma_addr + (i +
-							      1) *
-				sizeof(struct mite_dma_descriptor));
-	}
-	ring->descriptors[n_links - 1].next =
-	    cpu_to_le32(ring->descriptors_dma_addr);
-	/*
-	 * barrier is meant to insure that all the writes to the dma descriptors
-	 * have completed before the dma controller is commanded to read them
-	 */
-	smp_wmb();
-	return 0;
-}
-EXPORT_SYMBOL_GPL(mite_buf_change);
-
-void mite_prep_dma(struct mite_channel *mite_chan,
-		   unsigned int num_device_bits, unsigned int num_memory_bits)
-{
-	unsigned int chor, chcr, mcr, dcr, lkcr;
-	struct mite_struct *mite = mite_chan->mite;
-
-	/* reset DMA and FIFO */
-	chor = CHOR_DMARESET | CHOR_FRESET;
-	writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
-
-	/* short link chaining mode */
-	chcr = CHCR_SET_DMA_IE | CHCR_LINKSHORT | CHCR_SET_DONE_IE |
-	    CHCR_BURSTEN;
-	/*
-	 * Link Complete Interrupt: interrupt every time a link
-	 * in MITE_RING is completed. This can generate a lot of
-	 * extra interrupts, but right now we update the values
-	 * of buf_int_ptr and buf_int_count at each interrupt. A
-	 * better method is to poll the MITE before each user
-	 * "read()" to calculate the number of bytes available.
-	 */
-	chcr |= CHCR_SET_LC_IE;
-	if (num_memory_bits == 32 && num_device_bits == 16) {
-		/*
-		 * Doing a combined 32 and 16 bit byteswap gets the 16 bit
-		 * samples into the fifo in the right order. Tested doing 32 bit
-		 * memory to 16 bit device transfers to the analog out of a
-		 * pxi-6281, which has mite version = 1, type = 4. This also
-		 * works for dma reads from the counters on e-series boards.
-		 */
-		chcr |= CHCR_BYTE_SWAP_DEVICE | CHCR_BYTE_SWAP_MEMORY;
-	}
-	if (mite_chan->dir == COMEDI_INPUT)
-		chcr |= CHCR_DEV_TO_MEM;
-
-	writel(chcr, mite->mite_io_addr + MITE_CHCR(mite_chan->channel));
-
-	/* to/from memory */
-	mcr = CR_RL(64) | CR_ASEQUP;
-	switch (num_memory_bits) {
-	case 8:
-		mcr |= CR_PSIZE8;
-		break;
-	case 16:
-		mcr |= CR_PSIZE16;
-		break;
-	case 32:
-		mcr |= CR_PSIZE32;
-		break;
-	default:
-		pr_warn("bug! invalid mem bit width for dma transfer\n");
-		break;
-	}
-	writel(mcr, mite->mite_io_addr + MITE_MCR(mite_chan->channel));
-
-	/* from/to device */
-	dcr = CR_RL(64) | CR_ASEQUP;
-	dcr |= CR_PORTIO | CR_AMDEVICE | CR_REQSDRQ(mite_chan->channel);
-	switch (num_device_bits) {
-	case 8:
-		dcr |= CR_PSIZE8;
-		break;
-	case 16:
-		dcr |= CR_PSIZE16;
-		break;
-	case 32:
-		dcr |= CR_PSIZE32;
-		break;
-	default:
-		pr_warn("bug! invalid dev bit width for dma transfer\n");
-		break;
-	}
-	writel(dcr, mite->mite_io_addr + MITE_DCR(mite_chan->channel));
-
-	/* reset the DAR */
-	writel(0, mite->mite_io_addr + MITE_DAR(mite_chan->channel));
-
-	/* the link is 32bits */
-	lkcr = CR_RL(64) | CR_ASEQUP | CR_PSIZE32;
-	writel(lkcr, mite->mite_io_addr + MITE_LKCR(mite_chan->channel));
-
-	/* starting address for link chaining */
-	writel(mite_chan->ring->descriptors_dma_addr,
-	       mite->mite_io_addr + MITE_LKAR(mite_chan->channel));
-}
-EXPORT_SYMBOL_GPL(mite_prep_dma);
-
-static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-
-	return readl(mite->mite_io_addr + MITE_DAR(mite_chan->channel));
-}
-
-u32 mite_bytes_in_transit(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-
-	return readl(mite->mite_io_addr +
-		     MITE_FCR(mite_chan->channel)) & 0x000000FF;
-}
-EXPORT_SYMBOL_GPL(mite_bytes_in_transit);
-
-/* returns lower bound for number of bytes transferred from device to memory */
-u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan)
-{
-	u32 device_byte_count;
-
-	device_byte_count = mite_device_bytes_transferred(mite_chan);
-	return device_byte_count - mite_bytes_in_transit(mite_chan);
-}
-EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_lb);
-
-/* returns upper bound for number of bytes transferred from device to memory */
-u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan)
-{
-	u32 in_transit_count;
-
-	in_transit_count = mite_bytes_in_transit(mite_chan);
-	return mite_device_bytes_transferred(mite_chan) - in_transit_count;
-}
-EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_ub);
-
-/* returns lower bound for number of bytes read from memory to device */
-u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan)
-{
-	u32 device_byte_count;
-
-	device_byte_count = mite_device_bytes_transferred(mite_chan);
-	return device_byte_count + mite_bytes_in_transit(mite_chan);
-}
-EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_lb);
-
-/* returns upper bound for number of bytes read from memory to device */
-u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan)
-{
-	u32 in_transit_count;
-
-	in_transit_count = mite_bytes_in_transit(mite_chan);
-	return mite_device_bytes_transferred(mite_chan) + in_transit_count;
-}
-EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_ub);
-
-unsigned mite_dma_tcr(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-
-	return readl(mite->mite_io_addr + MITE_TCR(mite_chan->channel));
-}
-EXPORT_SYMBOL_GPL(mite_dma_tcr);
-
-void mite_dma_disarm(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-	unsigned chor;
-
-	/* disarm */
-	chor = CHOR_ABORT;
-	writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
-}
-EXPORT_SYMBOL_GPL(mite_dma_disarm);
-
-int mite_sync_input_dma(struct mite_channel *mite_chan,
-			struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	int count;
-	unsigned int nbytes, old_alloc_count;
-
-	old_alloc_count = async->buf_write_alloc_count;
-	/* write alloc as much as we can */
-	comedi_buf_write_alloc(s, async->prealloc_bufsz);
-
-	nbytes = mite_bytes_written_to_memory_lb(mite_chan);
-	if ((int)(mite_bytes_written_to_memory_ub(mite_chan) -
-		  old_alloc_count) > 0) {
-		dev_warn(s->device->class_dev,
-			 "mite: DMA overwrite of free area\n");
-		async->events |= COMEDI_CB_OVERFLOW;
-		return -1;
-	}
-
-	count = nbytes - async->buf_write_count;
-	/*
-	 * it's possible count will be negative due to conservative value
-	 * returned by mite_bytes_written_to_memory_lb
-	 */
-	if (count <= 0)
-		return 0;
-
-	comedi_buf_write_free(s, count);
-	comedi_inc_scan_progress(s, count);
-	async->events |= COMEDI_CB_BLOCK;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(mite_sync_input_dma);
-
-int mite_sync_output_dma(struct mite_channel *mite_chan,
-			 struct comedi_subdevice *s)
-{
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	u32 stop_count = cmd->stop_arg * comedi_bytes_per_scan(s);
-	unsigned int old_alloc_count = async->buf_read_alloc_count;
-	u32 nbytes_ub, nbytes_lb;
-	int count;
-
-	/* read alloc as much as we can */
-	comedi_buf_read_alloc(s, async->prealloc_bufsz);
-	nbytes_lb = mite_bytes_read_from_memory_lb(mite_chan);
-	if (cmd->stop_src == TRIG_COUNT && (int)(nbytes_lb - stop_count) > 0)
-		nbytes_lb = stop_count;
-	nbytes_ub = mite_bytes_read_from_memory_ub(mite_chan);
-	if (cmd->stop_src == TRIG_COUNT && (int)(nbytes_ub - stop_count) > 0)
-		nbytes_ub = stop_count;
-	if ((int)(nbytes_ub - old_alloc_count) > 0) {
-		dev_warn(s->device->class_dev, "mite: DMA underrun\n");
-		async->events |= COMEDI_CB_OVERFLOW;
-		return -1;
-	}
-	count = nbytes_lb - async->buf_read_count;
-	if (count <= 0)
-		return 0;
-
-	if (count) {
-		comedi_buf_read_free(s, count);
-		async->events |= COMEDI_CB_BLOCK;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(mite_sync_output_dma);
-
-unsigned mite_get_status(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-	unsigned status;
-	unsigned long flags;
-
-	spin_lock_irqsave(&mite->lock, flags);
-	status = readl(mite->mite_io_addr + MITE_CHSR(mite_chan->channel));
-	if (status & CHSR_DONE) {
-		mite_chan->done = 1;
-		writel(CHOR_CLRDONE,
-		       mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
-	}
-	mmiowb();
-	spin_unlock_irqrestore(&mite->lock, flags);
-	return status;
-}
-EXPORT_SYMBOL_GPL(mite_get_status);
-
-int mite_done(struct mite_channel *mite_chan)
-{
-	struct mite_struct *mite = mite_chan->mite;
-	unsigned long flags;
-	int done;
-
-	mite_get_status(mite_chan);
-	spin_lock_irqsave(&mite->lock, flags);
-	done = mite_chan->done;
-	spin_unlock_irqrestore(&mite->lock, flags);
-	return done;
-}
-EXPORT_SYMBOL_GPL(mite_done);
-
-static int __init mite_module_init(void)
-{
-	return 0;
-}
-
-static void __exit mite_module_exit(void)
-{
-}
-
-module_init(mite_module_init);
-module_exit(mite_module_exit);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi helper for NI Mite PCI interface chip");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h
deleted file mode 100644
index c32d4e4ddccc..000000000000
--- a/drivers/staging/comedi/drivers/mite.h
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * module/mite.h
- * Hardware driver for NI Mite PCI interface chip
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1999 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _MITE_H_
-#define _MITE_H_
-
-#include <linux/io.h>
-#include <linux/log2.h>
-#include <linux/spinlock.h>
-
-#define MAX_MITE_DMA_CHANNELS 8
-
-struct comedi_device;
-struct comedi_subdevice;
-struct device;
-struct pci_dev;
-
-struct mite_dma_descriptor {
-	__le32 count;
-	__le32 addr;
-	__le32 next;
-	u32 dar;
-};
-
-struct mite_dma_descriptor_ring {
-	struct device *hw_dev;
-	unsigned int n_links;
-	struct mite_dma_descriptor *descriptors;
-	dma_addr_t descriptors_dma_addr;
-};
-
-struct mite_channel {
-	struct mite_struct *mite;
-	unsigned channel;
-	int dir;
-	int done;
-	struct mite_dma_descriptor_ring *ring;
-};
-
-struct mite_struct {
-	struct pci_dev *pcidev;
-	resource_size_t mite_phys_addr;
-	void __iomem *mite_io_addr;
-	resource_size_t daq_phys_addr;
-	struct mite_channel channels[MAX_MITE_DMA_CHANNELS];
-	short channel_allocated[MAX_MITE_DMA_CHANNELS];
-	int num_channels;
-	unsigned fifo_size;
-	spinlock_t lock;
-};
-
-struct mite_struct *mite_alloc(struct pci_dev *pcidev);
-
-int mite_setup2(struct comedi_device *, struct mite_struct *, bool use_win1);
-
-static inline int mite_setup(struct comedi_device *dev,
-			     struct mite_struct *mite)
-{
-	return mite_setup2(dev, mite, false);
-}
-
-void mite_detach(struct mite_struct *mite);
-struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite);
-void mite_free_ring(struct mite_dma_descriptor_ring *ring);
-struct mite_channel *
-mite_request_channel_in_range(struct mite_struct *mite,
-			      struct mite_dma_descriptor_ring *ring,
-			      unsigned min_channel, unsigned max_channel);
-static inline struct mite_channel *
-mite_request_channel(struct mite_struct *mite,
-		     struct mite_dma_descriptor_ring *ring)
-{
-	return mite_request_channel_in_range(mite, ring, 0,
-					     mite->num_channels - 1);
-}
-
-void mite_release_channel(struct mite_channel *mite_chan);
-
-unsigned mite_dma_tcr(struct mite_channel *mite_chan);
-void mite_dma_arm(struct mite_channel *mite_chan);
-void mite_dma_disarm(struct mite_channel *mite_chan);
-int mite_sync_input_dma(struct mite_channel *mite_chan,
-			struct comedi_subdevice *s);
-int mite_sync_output_dma(struct mite_channel *mite_chan,
-			 struct comedi_subdevice *s);
-u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan);
-u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan);
-u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan);
-u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan);
-u32 mite_bytes_in_transit(struct mite_channel *mite_chan);
-unsigned mite_get_status(struct mite_channel *mite_chan);
-int mite_done(struct mite_channel *mite_chan);
-
-void mite_prep_dma(struct mite_channel *mite_chan,
-		   unsigned int num_device_bits, unsigned int num_memory_bits);
-int mite_buf_change(struct mite_dma_descriptor_ring *ring,
-		    struct comedi_subdevice *s);
-
-enum mite_registers {
-	/*
-	 * The bits 0x90180700 in MITE_UNKNOWN_DMA_BURST_REG can be
-	 * written and read back.  The bits 0x1f always read as 1.
-	 * The rest always read as zero.
-	 */
-	MITE_UNKNOWN_DMA_BURST_REG = 0x28,
-	MITE_IODWBSR = 0xc0,	/* IO Device Window Base Size Register */
-	MITE_IODWBSR_1 = 0xc4,	/* IO Device Window Base Size Register 1 */
-	MITE_IODWCR_1 = 0xf4,
-	MITE_PCI_CONFIG_OFFSET = 0x300,
-	MITE_CSIGR = 0x460	/* chip signature */
-};
-
-#define MITE_CHAN(x)	(0x500 + 0x100 * (x))
-#define MITE_CHOR(x)	(0x00 + MITE_CHAN(x))	/* channel operation */
-#define MITE_CHCR(x)	(0x04 + MITE_CHAN(x))	/* channel control */
-#define MITE_TCR(x)	(0x08 + MITE_CHAN(x))	/* transfer count */
-#define MITE_MCR(x)	(0x0c + MITE_CHAN(x))	/* memory configuration */
-#define MITE_MAR(x)	(0x10 + MITE_CHAN(x))	/* memory address */
-#define MITE_DCR(x)	(0x14 + MITE_CHAN(x))	/* device configuration */
-#define MITE_DAR(x)	(0x18 + MITE_CHAN(x))	/* device address */
-#define MITE_LKCR(x)	(0x1c + MITE_CHAN(x))	/* link configuration */
-#define MITE_LKAR(x)	(0x20 + MITE_CHAN(x))	/* link address */
-#define MITE_LLKAR(x)	(0x24 + MITE_CHAN(x))	/* see tnt5002 manual */
-#define MITE_BAR(x)	(0x28 + MITE_CHAN(x))	/* base address */
-#define MITE_BCR(x)	(0x2c + MITE_CHAN(x))	/* base count */
-#define MITE_SAR(x)	(0x30 + MITE_CHAN(x))	/* ? address */
-#define MITE_WSCR(x)	(0x34 + MITE_CHAN(x))	/* ? */
-#define MITE_WSER(x)	(0x38 + MITE_CHAN(x))	/* ? */
-#define MITE_CHSR(x)	(0x3c + MITE_CHAN(x))	/* channel status */
-#define MITE_FCR(x)	(0x40 + MITE_CHAN(x))	/* fifo count */
-
-enum MITE_IODWBSR_bits {
-	WENAB = 0x80,		/* window enable */
-};
-
-static inline unsigned MITE_IODWBSR_1_WSIZE_bits(unsigned size)
-{
-	unsigned order = 0;
-
-	BUG_ON(size == 0);
-	order = ilog2(size);
-	BUG_ON(order < 1);
-	return (order - 1) & 0x1f;
-}
-
-enum MITE_UNKNOWN_DMA_BURST_bits {
-	UNKNOWN_DMA_BURST_ENABLE_BITS = 0x600
-};
-
-static inline int mite_csigr_version(u32 csigr_bits)
-{
-	return csigr_bits & 0xf;
-};
-
-static inline int mite_csigr_type(u32 csigr_bits)
-{				/* original mite = 0, minimite = 1 */
-	return (csigr_bits >> 4) & 0xf;
-};
-
-static inline int mite_csigr_mmode(u32 csigr_bits)
-{				/* mite mode, minimite = 1 */
-	return (csigr_bits >> 8) & 0x3;
-};
-
-static inline int mite_csigr_imode(u32 csigr_bits)
-{				/* cpu port interface mode, pci = 0x3 */
-	return (csigr_bits >> 12) & 0x3;
-};
-
-static inline int mite_csigr_dmac(u32 csigr_bits)
-{				/* number of dma channels */
-	return (csigr_bits >> 16) & 0xf;
-};
-
-static inline int mite_csigr_wpdep(u32 csigr_bits)
-{				/* write post fifo depth */
-	unsigned int wpdep_bits = (csigr_bits >> 20) & 0x7;
-
-	return (wpdep_bits) ? (1 << (wpdep_bits - 1)) : 0;
-}
-
-static inline int mite_csigr_wins(u32 csigr_bits)
-{
-	return (csigr_bits >> 24) & 0x1f;
-};
-
-static inline int mite_csigr_iowins(u32 csigr_bits)
-{				/* number of io windows */
-	return (csigr_bits >> 29) & 0x7;
-};
-
-enum MITE_MCR_bits {
-	MCRPON = 0,
-};
-
-enum MITE_DCR_bits {
-	DCR_NORMAL = (1 << 29),
-	DCRPON = 0,
-};
-
-enum MITE_CHOR_bits {
-	CHOR_DMARESET = (1 << 31),
-	CHOR_SET_SEND_TC = (1 << 11),
-	CHOR_CLR_SEND_TC = (1 << 10),
-	CHOR_SET_LPAUSE = (1 << 9),
-	CHOR_CLR_LPAUSE = (1 << 8),
-	CHOR_CLRDONE = (1 << 7),
-	CHOR_CLRRB = (1 << 6),
-	CHOR_CLRLC = (1 << 5),
-	CHOR_FRESET = (1 << 4),
-	CHOR_ABORT = (1 << 3),	/* stop without emptying fifo */
-	CHOR_STOP = (1 << 2),	/* stop after emptying fifo */
-	CHOR_CONT = (1 << 1),
-	CHOR_START = (1 << 0),
-	CHOR_PON = (CHOR_CLR_SEND_TC | CHOR_CLR_LPAUSE),
-};
-
-enum MITE_CHCR_bits {
-	CHCR_SET_DMA_IE = (1 << 31),
-	CHCR_CLR_DMA_IE = (1 << 30),
-	CHCR_SET_LINKP_IE = (1 << 29),
-	CHCR_CLR_LINKP_IE = (1 << 28),
-	CHCR_SET_SAR_IE = (1 << 27),
-	CHCR_CLR_SAR_IE = (1 << 26),
-	CHCR_SET_DONE_IE = (1 << 25),
-	CHCR_CLR_DONE_IE = (1 << 24),
-	CHCR_SET_MRDY_IE = (1 << 23),
-	CHCR_CLR_MRDY_IE = (1 << 22),
-	CHCR_SET_DRDY_IE = (1 << 21),
-	CHCR_CLR_DRDY_IE = (1 << 20),
-	CHCR_SET_LC_IE = (1 << 19),
-	CHCR_CLR_LC_IE = (1 << 18),
-	CHCR_SET_CONT_RB_IE = (1 << 17),
-	CHCR_CLR_CONT_RB_IE = (1 << 16),
-	CHCR_FIFODIS = (1 << 15),
-	CHCR_FIFO_ON = 0,
-	CHCR_BURSTEN = (1 << 14),
-	CHCR_NO_BURSTEN = 0,
-	CHCR_BYTE_SWAP_DEVICE = (1 << 6),
-	CHCR_BYTE_SWAP_MEMORY = (1 << 4),
-	CHCR_DIR = (1 << 3),
-	CHCR_DEV_TO_MEM = CHCR_DIR,
-	CHCR_MEM_TO_DEV = 0,
-	CHCR_NORMAL = (0 << 0),
-	CHCR_CONTINUE = (1 << 0),
-	CHCR_RINGBUFF = (2 << 0),
-	CHCR_LINKSHORT = (4 << 0),
-	CHCR_LINKLONG = (5 << 0),
-	CHCRPON =
-	    (CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | CHCR_CLR_SAR_IE |
-	     CHCR_CLR_DONE_IE | CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE |
-	     CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE),
-};
-
-enum ConfigRegister_bits {
-	CR_REQS_MASK = 0x7 << 16,
-	CR_ASEQDONT = 0x0 << 10,
-	CR_ASEQUP = 0x1 << 10,
-	CR_ASEQDOWN = 0x2 << 10,
-	CR_ASEQ_MASK = 0x3 << 10,
-	CR_PSIZE8 = (1 << 8),
-	CR_PSIZE16 = (2 << 8),
-	CR_PSIZE32 = (3 << 8),
-	CR_PORTCPU = (0 << 6),
-	CR_PORTIO = (1 << 6),
-	CR_PORTVXI = (2 << 6),
-	CR_PORTMXI = (3 << 6),
-	CR_AMDEVICE = (1 << 0),
-};
-
-static inline int CR_REQS(int source)
-{
-	return (source & 0x7) << 16;
-};
-
-static inline int CR_REQSDRQ(unsigned drq_line)
-{
-	/* This also works on m-series when using channels (drq_line) 4 or 5. */
-	return CR_REQS((drq_line & 0x3) | 0x4);
-}
-
-static inline int CR_RL(unsigned int retry_limit)
-{
-	int value = 0;
-
-	if (retry_limit)
-		value = 1 + ilog2(retry_limit);
-	if (value > 0x7)
-		value = 0x7;
-	return (value & 0x7) << 21;
-}
-
-enum CHSR_bits {
-	CHSR_INT = (1 << 31),
-	CHSR_LPAUSES = (1 << 29),
-	CHSR_SARS = (1 << 27),
-	CHSR_DONE = (1 << 25),
-	CHSR_MRDY = (1 << 23),
-	CHSR_DRDY = (1 << 21),
-	CHSR_LINKC = (1 << 19),
-	CHSR_CONTS_RB = (1 << 17),
-	CHSR_ERROR = (1 << 15),
-	CHSR_SABORT = (1 << 14),
-	CHSR_HABORT = (1 << 13),
-	CHSR_STOPS = (1 << 12),
-	CHSR_OPERR_mask = (3 << 10),
-	CHSR_OPERR_NOERROR = (0 << 10),
-	CHSR_OPERR_FIFOERROR = (1 << 10),
-	CHSR_OPERR_LINKERROR = (1 << 10),	/* ??? */
-	CHSR_XFERR = (1 << 9),
-	CHSR_END = (1 << 8),
-	CHSR_DRQ1 = (1 << 7),
-	CHSR_DRQ0 = (1 << 6),
-	CHSR_LxERR_mask = (3 << 4),
-	CHSR_LBERR = (1 << 4),
-	CHSR_LRERR = (2 << 4),
-	CHSR_LOERR = (3 << 4),
-	CHSR_MxERR_mask = (3 << 2),
-	CHSR_MBERR = (1 << 2),
-	CHSR_MRERR = (2 << 2),
-	CHSR_MOERR = (3 << 2),
-	CHSR_DxERR_mask = (3 << 0),
-	CHSR_DBERR = (1 << 0),
-	CHSR_DRERR = (2 << 0),
-	CHSR_DOERR = (3 << 0),
-};
-
-static inline void mite_dma_reset(struct mite_channel *mite_chan)
-{
-	writel(CHOR_DMARESET | CHOR_FRESET,
-	       mite_chan->mite->mite_io_addr + MITE_CHOR(mite_chan->channel));
-};
-
-#endif
diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c
deleted file mode 100644
index 0207b8edfcb4..000000000000
--- a/drivers/staging/comedi/drivers/mpc624.c
+++ /dev/null
@@ -1,357 +0,0 @@
-/*
-    comedi/drivers/mpc624.c
-    Hardware driver for a Micro/sys inc. MPC-624 PC/104 board
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: mpc624
-Description: Micro/sys MPC-624 PC/104 board
-Devices: [Micro/sys] MPC-624 (mpc624)
-Author: Stanislaw Raczynski <sraczynski@op.pl>
-Updated: Thu, 15 Sep 2005 12:01:18 +0200
-Status: working
-
-    The Micro/sys MPC-624 board is based on the LTC2440 24-bit sigma-delta
-    ADC chip.
-
-    Subdevices supported by the driver:
-    - Analog In:   supported
-    - Digital I/O: not supported
-    - LEDs:        not supported
-    - EEPROM:      not supported
-
-Configuration Options:
-  [0] - I/O base address
-  [1] - conversion rate
-	Conversion rate  RMS noise  Effective Number Of Bits
-	0      3.52kHz        23uV                17
-	1      1.76kHz       3.5uV                20
-	2       880Hz         2uV                21.3
-	3       440Hz        1.4uV               21.8
-	4       220Hz         1uV                22.4
-	5       110Hz        750uV               22.9
-	6       55Hz         510nV               23.4
-	7      27.5Hz        375nV                24
-	8      13.75Hz       250nV               24.4
-	9      6.875Hz       200nV               24.6
-  [2] - voltage range
-	0      -1.01V .. +1.01V
-	1      -10.1V .. +10.1V
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include <linux/delay.h>
-
-/* Offsets of different ports */
-#define MPC624_MASTER_CONTROL	0 /* not used */
-#define MPC624_GNMUXCH          1 /* Gain, Mux, Channel of ADC */
-#define MPC624_ADC              2 /* read/write to/from ADC */
-#define MPC624_EE               3 /* read/write to/from serial EEPROM via I2C */
-#define MPC624_LEDS             4 /* write to LEDs */
-#define MPC624_DIO              5 /* read/write to/from digital I/O ports */
-#define MPC624_IRQ_MASK         6 /* IRQ masking enable/disable */
-
-/* Register bits' names */
-#define MPC624_ADBUSY           (1<<5)
-#define MPC624_ADSDO            (1<<4)
-#define MPC624_ADFO             (1<<3)
-#define MPC624_ADCS             (1<<2)
-#define MPC624_ADSCK            (1<<1)
-#define MPC624_ADSDI            (1<<0)
-
-/* SDI Speed/Resolution Programming bits */
-#define MPC624_OSR4             (1<<31)
-#define MPC624_OSR3             (1<<30)
-#define MPC624_OSR2             (1<<29)
-#define MPC624_OSR1             (1<<28)
-#define MPC624_OSR0             (1<<27)
-
-/* 32-bit output value bits' names */
-#define MPC624_EOC_BIT          (1<<31)
-#define MPC624_DMY_BIT          (1<<30)
-#define MPC624_SGN_BIT          (1<<29)
-
-/* Conversion speeds */
-/* OSR4 OSR3 OSR2 OSR1 OSR0  Conversion rate  RMS noise  ENOB^
- *  X    0    0    0    1        3.52kHz        23uV      17
- *  X    0    0    1    0        1.76kHz       3.5uV      20
- *  X    0    0    1    1         880Hz         2uV      21.3
- *  X    0    1    0    0         440Hz        1.4uV     21.8
- *  X    0    1    0    1         220Hz         1uV      22.4
- *  X    0    1    1    0         110Hz        750uV     22.9
- *  X    0    1    1    1          55Hz        510nV     23.4
- *  X    1    0    0    0         27.5Hz       375nV      24
- *  X    1    0    0    1        13.75Hz       250nV     24.4
- *  X    1    1    1    1        6.875Hz       200nV     24.6
- *
- * ^ - Effective Number Of Bits
- */
-
-#define MPC624_SPEED_3_52_kHz (MPC624_OSR4 | MPC624_OSR0)
-#define MPC624_SPEED_1_76_kHz (MPC624_OSR4 | MPC624_OSR1)
-#define MPC624_SPEED_880_Hz   (MPC624_OSR4 | MPC624_OSR1 | MPC624_OSR0)
-#define MPC624_SPEED_440_Hz   (MPC624_OSR4 | MPC624_OSR2)
-#define MPC624_SPEED_220_Hz   (MPC624_OSR4 | MPC624_OSR2 | MPC624_OSR0)
-#define MPC624_SPEED_110_Hz   (MPC624_OSR4 | MPC624_OSR2 | MPC624_OSR1)
-#define MPC624_SPEED_55_Hz \
-	(MPC624_OSR4 | MPC624_OSR2 | MPC624_OSR1 | MPC624_OSR0)
-#define MPC624_SPEED_27_5_Hz  (MPC624_OSR4 | MPC624_OSR3)
-#define MPC624_SPEED_13_75_Hz (MPC624_OSR4 | MPC624_OSR3 | MPC624_OSR0)
-#define MPC624_SPEED_6_875_Hz \
-	(MPC624_OSR4 | MPC624_OSR3 | MPC624_OSR2 | MPC624_OSR1 | MPC624_OSR0)
-/* -------------------------------------------------------------------------- */
-struct mpc624_private {
-	/*  set by mpc624_attach() from driver's parameters */
-	unsigned long int ulConvertionRate;
-};
-
-/* -------------------------------------------------------------------------- */
-static const struct comedi_lrange range_mpc624_bipolar1 = {
-	1,
-	{
-/* BIP_RANGE(1.01)  this is correct, */
-	 /*  but my MPC-624 actually seems to have a range of 2.02 */
-	 BIP_RANGE(2.02)
-	 }
-};
-
-static const struct comedi_lrange range_mpc624_bipolar10 = {
-	1,
-	{
-/* BIP_RANGE(10.1)   this is correct, */
-	 /*  but my MPC-624 actually seems to have a range of 20.2 */
-	 BIP_RANGE(20.2)
-	 }
-};
-
-static int mpc624_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned char status;
-
-	status = inb(dev->iobase + MPC624_ADC);
-	if ((status & MPC624_ADBUSY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int mpc624_ai_rinsn(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_insn *insn,
-			   unsigned int *data)
-{
-	struct mpc624_private *devpriv = dev->private;
-	int n, i;
-	unsigned long int data_in, data_out;
-	int ret;
-
-	/*
-	 *  WARNING:
-	 *  We always write 0 to GNSWA bit, so the channel range is +-/10.1Vdc
-	 */
-	outb(insn->chanspec, dev->iobase + MPC624_GNMUXCH);
-
-	for (n = 0; n < insn->n; n++) {
-		/*  Trigger the conversion */
-		outb(MPC624_ADSCK, dev->iobase + MPC624_ADC);
-		udelay(1);
-		outb(MPC624_ADCS | MPC624_ADSCK, dev->iobase + MPC624_ADC);
-		udelay(1);
-		outb(0, dev->iobase + MPC624_ADC);
-		udelay(1);
-
-		/*  Wait for the conversion to end */
-		ret = comedi_timeout(dev, s, insn, mpc624_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/*  Start reading data */
-		data_in = 0;
-		data_out = devpriv->ulConvertionRate;
-		udelay(1);
-		for (i = 0; i < 32; i++) {
-			/*  Set the clock low */
-			outb(0, dev->iobase + MPC624_ADC);
-			udelay(1);
-
-			if (data_out & (1 << 31)) { /*  the next bit is a 1 */
-				/*  Set the ADSDI line (send to MPC624) */
-				outb(MPC624_ADSDI, dev->iobase + MPC624_ADC);
-				udelay(1);
-				/*  Set the clock high */
-				outb(MPC624_ADSCK | MPC624_ADSDI,
-				     dev->iobase + MPC624_ADC);
-			} else {	/*  the next bit is a 0 */
-
-				/*  Set the ADSDI line (send to MPC624) */
-				outb(0, dev->iobase + MPC624_ADC);
-				udelay(1);
-				/*  Set the clock high */
-				outb(MPC624_ADSCK, dev->iobase + MPC624_ADC);
-			}
-			/*  Read ADSDO on high clock (receive from MPC624) */
-			udelay(1);
-			data_in <<= 1;
-			data_in |=
-			    (inb(dev->iobase + MPC624_ADC) & MPC624_ADSDO) >> 4;
-			udelay(1);
-
-			data_out <<= 1;
-		}
-
-		/*
-		 *  Received 32-bit long value consist of:
-		 *    31: EOC -
-		 *          (End Of Transmission) bit - should be 0
-		 *    30: DMY
-		 *          (Dummy) bit - should be 0
-		 *    29: SIG
-		 *          (Sign) bit- 1 if the voltage is positive,
-		 *                      0 if negative
-		 *    28: MSB
-		 *          (Most Significant Bit) - the first bit of
-		 *                                   the conversion result
-		 *    ....
-		 *    05: LSB
-		 *          (Least Significant Bit)- the last bit of the
-		 *                                   conversion result
-		 *    04-00: sub-LSB
-		 *          - sub-LSBs are basically noise, but when
-		 *            averaged properly, they can increase conversion
-		 *            precision up to 29 bits; they can be discarded
-		 *            without loss of resolution.
-		 */
-
-		if (data_in & MPC624_EOC_BIT)
-			dev_dbg(dev->class_dev,
-				"EOC bit is set (data_in=%lu)!", data_in);
-		if (data_in & MPC624_DMY_BIT)
-			dev_dbg(dev->class_dev,
-				"DMY bit is set (data_in=%lu)!", data_in);
-		if (data_in & MPC624_SGN_BIT) {	/* Volatge is positive */
-			/*
-			 * comedi operates on unsigned numbers, so mask off EOC
-			 * and DMY and don't clear the SGN bit
-			 */
-			data_in &= 0x3FFFFFFF;
-			data[n] = data_in;
-		} else { /*  The voltage is negative */
-			/*
-			 * data_in contains a number in 30-bit two's complement
-			 * code and we must deal with it
-			 */
-			data_in |= MPC624_SGN_BIT;
-			data_in = ~data_in;
-			data_in += 1;
-			data_in &= ~(MPC624_EOC_BIT | MPC624_DMY_BIT);
-			/*  clear EOC and DMY bits */
-			data_in = 0x20000000 - data_in;
-			data[n] = data_in;
-		}
-	}
-
-	/*  Return the number of samples read/written */
-	return n;
-}
-
-static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct mpc624_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	switch (it->options[1]) {
-	case 0:
-		devpriv->ulConvertionRate = MPC624_SPEED_3_52_kHz;
-		break;
-	case 1:
-		devpriv->ulConvertionRate = MPC624_SPEED_1_76_kHz;
-		break;
-	case 2:
-		devpriv->ulConvertionRate = MPC624_SPEED_880_Hz;
-		break;
-	case 3:
-		devpriv->ulConvertionRate = MPC624_SPEED_440_Hz;
-		break;
-	case 4:
-		devpriv->ulConvertionRate = MPC624_SPEED_220_Hz;
-		break;
-	case 5:
-		devpriv->ulConvertionRate = MPC624_SPEED_110_Hz;
-		break;
-	case 6:
-		devpriv->ulConvertionRate = MPC624_SPEED_55_Hz;
-		break;
-	case 7:
-		devpriv->ulConvertionRate = MPC624_SPEED_27_5_Hz;
-		break;
-	case 8:
-		devpriv->ulConvertionRate = MPC624_SPEED_13_75_Hz;
-		break;
-	case 9:
-		devpriv->ulConvertionRate = MPC624_SPEED_6_875_Hz;
-		break;
-	default:
-		devpriv->ulConvertionRate = MPC624_SPEED_3_52_kHz;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_DIFF;
-	s->n_chan = 8;
-	switch (it->options[1]) {
-	default:
-		s->maxdata = 0x3FFFFFFF;
-	}
-
-	switch (it->options[1]) {
-	case 0:
-		s->range_table = &range_mpc624_bipolar1;
-		break;
-	default:
-		s->range_table = &range_mpc624_bipolar10;
-	}
-	s->len_chanlist = 1;
-	s->insn_read = mpc624_ai_rinsn;
-
-	return 0;
-}
-
-static struct comedi_driver mpc624_driver = {
-	.driver_name	= "mpc624",
-	.module		= THIS_MODULE,
-	.attach		= mpc624_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(mpc624_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/multiq3.c b/drivers/staging/comedi/drivers/multiq3.c
deleted file mode 100644
index 8471219210b6..000000000000
--- a/drivers/staging/comedi/drivers/multiq3.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
-   comedi/drivers/multiq3.c
-   Hardware driver for Quanser Consulting MultiQ-3 board
-
-   COMEDI - Linux Control and Measurement Device Interface
-   Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se>
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
- */
-/*
-Driver: multiq3
-Description: Quanser Consulting MultiQ-3
-Author: Anders Blomdell <anders.blomdell@control.lth.se>
-Status: works
-Devices: [Quanser Consulting] MultiQ-3 (multiq3)
-
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-/*
- * MULTIQ-3 port offsets
- */
-#define MULTIQ3_DIGIN_PORT 0
-#define MULTIQ3_DIGOUT_PORT 0
-#define MULTIQ3_DAC_DATA 2
-#define MULTIQ3_AD_DATA 4
-#define MULTIQ3_AD_CS 4
-#define MULTIQ3_STATUS 6
-#define MULTIQ3_CONTROL 6
-#define MULTIQ3_CLK_DATA 8
-#define MULTIQ3_ENC_DATA 12
-#define MULTIQ3_ENC_CONTROL 14
-
-/*
- * flags for CONTROL register
- */
-#define MULTIQ3_AD_MUX_EN      0x0040
-#define MULTIQ3_AD_AUTOZ       0x0080
-#define MULTIQ3_AD_AUTOCAL     0x0100
-#define MULTIQ3_AD_SH          0x0200
-#define MULTIQ3_AD_CLOCK_4M    0x0400
-#define MULTIQ3_DA_LOAD                0x1800
-
-#define MULTIQ3_CONTROL_MUST    0x0600
-
-/*
- * flags for STATUS register
- */
-#define MULTIQ3_STATUS_EOC      0x008
-#define MULTIQ3_STATUS_EOC_I    0x010
-
-/*
- * flags for encoder control
- */
-#define MULTIQ3_CLOCK_DATA      0x00
-#define MULTIQ3_CLOCK_SETUP     0x18
-#define MULTIQ3_INPUT_SETUP     0x41
-#define MULTIQ3_QUAD_X4         0x38
-#define MULTIQ3_BP_RESET        0x01
-#define MULTIQ3_CNTR_RESET      0x02
-#define MULTIQ3_TRSFRPR_CTR     0x08
-#define MULTIQ3_TRSFRCNTR_OL    0x10
-#define MULTIQ3_EFLAG_RESET     0x06
-
-#define MULTIQ3_TIMEOUT 30
-
-static int multiq3_ai_status(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + MULTIQ3_STATUS);
-	if (status & context)
-		return 0;
-	return -EBUSY;
-}
-
-static int multiq3_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	int n;
-	int chan;
-	unsigned int hi, lo;
-	int ret;
-
-	chan = CR_CHAN(insn->chanspec);
-	outw(MULTIQ3_CONTROL_MUST | MULTIQ3_AD_MUX_EN | (chan << 3),
-	     dev->iobase + MULTIQ3_CONTROL);
-
-	ret = comedi_timeout(dev, s, insn, multiq3_ai_status,
-			     MULTIQ3_STATUS_EOC);
-	if (ret)
-		return ret;
-
-	for (n = 0; n < insn->n; n++) {
-		outw(0, dev->iobase + MULTIQ3_AD_CS);
-
-		ret = comedi_timeout(dev, s, insn, multiq3_ai_status,
-				     MULTIQ3_STATUS_EOC_I);
-		if (ret)
-			return ret;
-
-		hi = inb(dev->iobase + MULTIQ3_AD_CS);
-		lo = inb(dev->iobase + MULTIQ3_AD_CS);
-		data[n] = (((hi << 8) | lo) + 0x1000) & 0x1fff;
-	}
-
-	return n;
-}
-
-static int multiq3_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(MULTIQ3_CONTROL_MUST | MULTIQ3_DA_LOAD | chan,
-		     dev->iobase + MULTIQ3_CONTROL);
-		outw(val, dev->iobase + MULTIQ3_DAC_DATA);
-		outw(MULTIQ3_CONTROL_MUST, dev->iobase + MULTIQ3_CONTROL);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int multiq3_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	data[1] = inw(dev->iobase + MULTIQ3_DIGIN_PORT);
-
-	return insn->n;
-}
-
-static int multiq3_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + MULTIQ3_DIGOUT_PORT);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int multiq3_encoder_insn_read(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	int chan = CR_CHAN(insn->chanspec);
-	int control = MULTIQ3_CONTROL_MUST | MULTIQ3_AD_MUX_EN | (chan << 3);
-	int value;
-	int n;
-
-	for (n = 0; n < insn->n; n++) {
-		outw(control, dev->iobase + MULTIQ3_CONTROL);
-		outb(MULTIQ3_BP_RESET, dev->iobase + MULTIQ3_ENC_CONTROL);
-		outb(MULTIQ3_TRSFRCNTR_OL, dev->iobase + MULTIQ3_ENC_CONTROL);
-		value = inb(dev->iobase + MULTIQ3_ENC_DATA);
-		value |= (inb(dev->iobase + MULTIQ3_ENC_DATA) << 8);
-		value |= (inb(dev->iobase + MULTIQ3_ENC_DATA) << 16);
-		data[n] = (value + 0x800000) & 0xffffff;
-	}
-
-	return n;
-}
-
-static void encoder_reset(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s = &dev->subdevices[4];
-	int chan;
-
-	for (chan = 0; chan < s->n_chan; chan++) {
-		int control =
-		    MULTIQ3_CONTROL_MUST | MULTIQ3_AD_MUX_EN | (chan << 3);
-		outw(control, dev->iobase + MULTIQ3_CONTROL);
-		outb(MULTIQ3_EFLAG_RESET, dev->iobase + MULTIQ3_ENC_CONTROL);
-		outb(MULTIQ3_BP_RESET, dev->iobase + MULTIQ3_ENC_CONTROL);
-		outb(MULTIQ3_CLOCK_DATA, dev->iobase + MULTIQ3_ENC_DATA);
-		outb(MULTIQ3_CLOCK_SETUP, dev->iobase + MULTIQ3_ENC_CONTROL);
-		outb(MULTIQ3_INPUT_SETUP, dev->iobase + MULTIQ3_ENC_CONTROL);
-		outb(MULTIQ3_QUAD_X4, dev->iobase + MULTIQ3_ENC_CONTROL);
-		outb(MULTIQ3_CNTR_RESET, dev->iobase + MULTIQ3_ENC_CONTROL);
-	}
-}
-
-static int multiq3_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 5);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* ai subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = 8;
-	s->insn_read = multiq3_ai_insn_read;
-	s->maxdata = 0x1fff;
-	s->range_table = &range_bipolar5;
-
-	s = &dev->subdevices[1];
-	/* ao subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 0xfff;
-	s->range_table = &range_bipolar5;
-	s->insn_write = multiq3_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	/* di subdevice */
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 16;
-	s->insn_bits = multiq3_di_insn_bits;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-
-	s = &dev->subdevices[3];
-	/* do subdevice */
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 16;
-	s->insn_bits = multiq3_do_insn_bits;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->state = 0;
-
-	s = &dev->subdevices[4];
-	/* encoder (counter) subdevice */
-	s->type = COMEDI_SUBD_COUNTER;
-	s->subdev_flags = SDF_READABLE | SDF_LSAMPL;
-	s->n_chan = it->options[2] * 2;
-	s->insn_read = multiq3_encoder_insn_read;
-	s->maxdata = 0xffffff;
-	s->range_table = &range_unknown;
-
-	encoder_reset(dev);
-
-	return 0;
-}
-
-static struct comedi_driver multiq3_driver = {
-	.driver_name	= "multiq3",
-	.module		= THIS_MODULE,
-	.attach		= multiq3_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(multiq3_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
deleted file mode 100644
index 62a817e4cd64..000000000000
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/*
- * ni_6527.c
- * Comedi driver for National Instruments PCI-6527
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: ni_6527
- * Description: National Instruments 6527
- * Devices: [National Instruments] PCI-6527 (pci-6527), PXI-6527 (pxi-6527)
- * Author: David A. Schleef <ds@schleef.org>
- * Updated: Sat, 25 Jan 2003 13:24:40 -0800
- * Status: works
- *
- * Configuration Options: not applicable, uses PCI auto config
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-/*
- * PCI BAR1 - Register memory map
- *
- * Manuals (available from ftp://ftp.natinst.com/support/manuals)
- *	370106b.pdf	6527 Register Level Programmer Manual
- */
-#define NI6527_DI_REG(x)		(0x00 + (x))
-#define NI6527_DO_REG(x)		(0x03 + (x))
-#define NI6527_ID_REG			0x06
-#define NI6527_CLR_REG			0x07
-#define NI6527_CLR_EDGE			(1 << 3)
-#define NI6527_CLR_OVERFLOW		(1 << 2)
-#define NI6527_CLR_FILT			(1 << 1)
-#define NI6527_CLR_INTERVAL		(1 << 0)
-#define NI6527_CLR_IRQS			(NI6527_CLR_EDGE | NI6527_CLR_OVERFLOW)
-#define NI6527_CLR_RESET_FILT		(NI6527_CLR_FILT | NI6527_CLR_INTERVAL)
-#define NI6527_FILT_INTERVAL_REG(x)	(0x08 + (x))
-#define NI6527_FILT_ENA_REG(x)		(0x0c + (x))
-#define NI6527_STATUS_REG		0x14
-#define NI6527_STATUS_IRQ		(1 << 2)
-#define NI6527_STATUS_OVERFLOW		(1 << 1)
-#define NI6527_STATUS_EDGE		(1 << 0)
-#define NI6527_CTRL_REG			0x15
-#define NI6527_CTRL_FALLING		(1 << 4)
-#define NI6527_CTRL_RISING		(1 << 3)
-#define NI6527_CTRL_IRQ			(1 << 2)
-#define NI6527_CTRL_OVERFLOW		(1 << 1)
-#define NI6527_CTRL_EDGE		(1 << 0)
-#define NI6527_CTRL_DISABLE_IRQS	0
-#define NI6527_CTRL_ENABLE_IRQS		(NI6527_CTRL_FALLING | \
-					 NI6527_CTRL_RISING | \
-					 NI6527_CTRL_IRQ | NI6527_CTRL_EDGE)
-#define NI6527_RISING_EDGE_REG(x)	(0x18 + (x))
-#define NI6527_FALLING_EDGE_REG(x)	(0x20 + (x))
-
-enum ni6527_boardid {
-	BOARD_PCI6527,
-	BOARD_PXI6527,
-};
-
-struct ni6527_board {
-	const char *name;
-};
-
-static const struct ni6527_board ni6527_boards[] = {
-	[BOARD_PCI6527] = {
-		.name		= "pci-6527",
-	},
-	[BOARD_PXI6527] = {
-		.name		= "pxi-6527",
-	},
-};
-
-struct ni6527_private {
-	unsigned int filter_interval;
-	unsigned int filter_enable;
-};
-
-static void ni6527_set_filter_interval(struct comedi_device *dev,
-				       unsigned int val)
-{
-	struct ni6527_private *devpriv = dev->private;
-
-	if (val != devpriv->filter_interval) {
-		writeb(val & 0xff, dev->mmio + NI6527_FILT_INTERVAL_REG(0));
-		writeb((val >> 8) & 0xff,
-		       dev->mmio + NI6527_FILT_INTERVAL_REG(1));
-		writeb((val >> 16) & 0x0f,
-		       dev->mmio + NI6527_FILT_INTERVAL_REG(2));
-
-		writeb(NI6527_CLR_INTERVAL, dev->mmio + NI6527_CLR_REG);
-
-		devpriv->filter_interval = val;
-	}
-}
-
-static void ni6527_set_filter_enable(struct comedi_device *dev,
-				     unsigned int val)
-{
-	writeb(val & 0xff, dev->mmio + NI6527_FILT_ENA_REG(0));
-	writeb((val >> 8) & 0xff, dev->mmio + NI6527_FILT_ENA_REG(1));
-	writeb((val >> 16) & 0xff, dev->mmio + NI6527_FILT_ENA_REG(2));
-}
-
-static int ni6527_di_insn_config(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct ni6527_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int interval;
-
-	switch (data[0]) {
-	case INSN_CONFIG_FILTER:
-		/*
-		 * The deglitch filter interval is specified in nanoseconds.
-		 * The hardware supports intervals in 200ns increments. Round
-		 * the user values up and return the actual interval.
-		 */
-		interval = (data[1] + 100) / 200;
-		data[1] = interval * 200;
-
-		if (interval) {
-			ni6527_set_filter_interval(dev, interval);
-			devpriv->filter_enable |= 1 << chan;
-		} else {
-			devpriv->filter_enable &= ~(1 << chan);
-		}
-		ni6527_set_filter_enable(dev, devpriv->filter_enable);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int ni6527_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int val;
-
-	val = readb(dev->mmio + NI6527_DI_REG(0));
-	val |= (readb(dev->mmio + NI6527_DI_REG(1)) << 8);
-	val |= (readb(dev->mmio + NI6527_DI_REG(2)) << 16);
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int ni6527_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int mask;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		/* Outputs are inverted */
-		unsigned int val = s->state ^ 0xffffff;
-
-		if (mask & 0x0000ff)
-			writeb(val & 0xff, dev->mmio + NI6527_DO_REG(0));
-		if (mask & 0x00ff00)
-			writeb((val >> 8) & 0xff,
-			       dev->mmio + NI6527_DO_REG(1));
-		if (mask & 0xff0000)
-			writeb((val >> 16) & 0xff,
-			       dev->mmio + NI6527_DO_REG(2));
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static irqreturn_t ni6527_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int status;
-
-	status = readb(dev->mmio + NI6527_STATUS_REG);
-	if (!(status & NI6527_STATUS_IRQ))
-		return IRQ_NONE;
-
-	if (status & NI6527_STATUS_EDGE) {
-		comedi_buf_write_samples(s, &s->state, 1);
-		comedi_handle_events(dev, s);
-	}
-
-	writeb(NI6527_CLR_IRQS, dev->mmio + NI6527_CLR_REG);
-
-	return IRQ_HANDLED;
-}
-
-static int ni6527_intr_cmdtest(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int ni6527_intr_cmd(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	writeb(NI6527_CLR_IRQS, dev->mmio + NI6527_CLR_REG);
-	writeb(NI6527_CTRL_ENABLE_IRQS, dev->mmio + NI6527_CTRL_REG);
-
-	return 0;
-}
-
-static int ni6527_intr_cancel(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	writeb(NI6527_CTRL_DISABLE_IRQS, dev->mmio + NI6527_CTRL_REG);
-
-	return 0;
-}
-
-static int ni6527_intr_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	data[1] = 0;
-	return insn->n;
-}
-
-static void ni6527_set_edge_detection(struct comedi_device *dev,
-				      unsigned int mask,
-				      unsigned int rising,
-				      unsigned int falling)
-{
-	unsigned int i;
-
-	rising &= mask;
-	falling &= mask;
-	for (i = 0; i < 2; i++) {
-		if (mask & 0xff) {
-			if (~mask & 0xff) {
-				/* preserve rising-edge detection channels */
-				rising |= readb(dev->mmio +
-						NI6527_RISING_EDGE_REG(i)) &
-					  (~mask & 0xff);
-				/* preserve falling-edge detection channels */
-				falling |= readb(dev->mmio +
-						 NI6527_FALLING_EDGE_REG(i)) &
-					   (~mask & 0xff);
-			}
-			/* update rising-edge detection channels */
-			writeb(rising & 0xff,
-			       dev->mmio + NI6527_RISING_EDGE_REG(i));
-			/* update falling-edge detection channels */
-			writeb(falling & 0xff,
-			       dev->mmio + NI6527_FALLING_EDGE_REG(i));
-		}
-		rising >>= 8;
-		falling >>= 8;
-		mask >>= 8;
-	}
-}
-
-static int ni6527_intr_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned int mask = 0xffffffff;
-	unsigned int rising, falling, shift;
-
-	switch (data[0]) {
-	case INSN_CONFIG_CHANGE_NOTIFY:
-		/* check_insn_config_length() does not check this instruction */
-		if (insn->n != 3)
-			return -EINVAL;
-		rising = data[1];
-		falling = data[2];
-		ni6527_set_edge_detection(dev, mask, rising, falling);
-		break;
-	case INSN_CONFIG_DIGITAL_TRIG:
-		/* check trigger number */
-		if (data[1] != 0)
-			return -EINVAL;
-		/* check digital trigger operation */
-		switch (data[2]) {
-		case COMEDI_DIGITAL_TRIG_DISABLE:
-			rising = 0;
-			falling = 0;
-			break;
-		case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
-			/* check shift amount */
-			shift = data[3];
-			if (shift >= s->n_chan) {
-				mask = 0;
-				rising = 0;
-				falling = 0;
-			} else {
-				mask <<= shift;
-				rising = data[4] << shift;
-				falling = data[5] << shift;
-			}
-			break;
-		default:
-			return -EINVAL;
-		}
-		ni6527_set_edge_detection(dev, mask, rising, falling);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static void ni6527_reset(struct comedi_device *dev)
-{
-	/* disable deglitch filters on all channels */
-	ni6527_set_filter_enable(dev, 0);
-
-	/* disable edge detection */
-	ni6527_set_edge_detection(dev, 0xffffffff, 0, 0);
-
-	writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT,
-	       dev->mmio + NI6527_CLR_REG);
-	writeb(NI6527_CTRL_DISABLE_IRQS, dev->mmio + NI6527_CTRL_REG);
-}
-
-static int ni6527_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct ni6527_board *board = NULL;
-	struct ni6527_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	if (context < ARRAY_SIZE(ni6527_boards))
-		board = &ni6527_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 1);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	/* make sure this is actually a 6527 device */
-	if (readb(dev->mmio + NI6527_ID_REG) != 0x27)
-		return -ENODEV;
-
-	ni6527_reset(dev);
-
-	ret = request_irq(pcidev->irq, ni6527_interrupt, IRQF_SHARED,
-			  dev->board_name, dev);
-	if (ret == 0)
-		dev->irq = pcidev->irq;
-
-	ret = comedi_alloc_subdevices(dev, 3);
-	if (ret)
-		return ret;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 24;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_config	= ni6527_di_insn_config;
-	s->insn_bits	= ni6527_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 24;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= ni6527_do_insn_bits;
-
-	/* Edge detection interrupt subdevice */
-	s = &dev->subdevices[2];
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
-		s->n_chan	= 1;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_config	= ni6527_intr_insn_config;
-		s->insn_bits	= ni6527_intr_insn_bits;
-		s->len_chanlist	= 1;
-		s->do_cmdtest	= ni6527_intr_cmdtest;
-		s->do_cmd	= ni6527_intr_cmd;
-		s->cancel	= ni6527_intr_cancel;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	return 0;
-}
-
-static void ni6527_detach(struct comedi_device *dev)
-{
-	if (dev->mmio)
-		ni6527_reset(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver ni6527_driver = {
-	.driver_name	= "ni_6527",
-	.module		= THIS_MODULE,
-	.auto_attach	= ni6527_auto_attach,
-	.detach		= ni6527_detach,
-};
-
-static int ni6527_pci_probe(struct pci_dev *dev,
-			    const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &ni6527_driver, id->driver_data);
-}
-
-static const struct pci_device_id ni6527_pci_table[] = {
-	{ PCI_VDEVICE(NI, 0x2b10), BOARD_PXI6527 },
-	{ PCI_VDEVICE(NI, 0x2b20), BOARD_PCI6527 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ni6527_pci_table);
-
-static struct pci_driver ni6527_pci_driver = {
-	.name		= "ni_6527",
-	.id_table	= ni6527_pci_table,
-	.probe		= ni6527_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(ni6527_driver, ni6527_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for National Instruments PCI-6527");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c
deleted file mode 100644
index 800d57426070..000000000000
--- a/drivers/staging/comedi/drivers/ni_65xx.c
+++ /dev/null
@@ -1,831 +0,0 @@
-/*
- * ni_65xx.c
- * Comedi driver for National Instruments PCI-65xx static dio boards
- *
- * Copyright (C) 2006 Jon Grierson <jd@renko.co.uk>
- * Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: ni_65xx
- * Description: National Instruments 65xx static dio boards
- * Author: Jon Grierson <jd@renko.co.uk>,
- *	   Frank Mori Hess <fmhess@users.sourceforge.net>
- * Status: testing
- * Devices: [National Instruments] PCI-6509 (pci-6509), PXI-6509 (pxi-6509),
- *   PCI-6510 (pci-6510), PCI-6511 (pci-6511), PXI-6511 (pxi-6511),
- *   PCI-6512 (pci-6512), PXI-6512 (pxi-6512), PCI-6513 (pci-6513),
- *   PXI-6513 (pxi-6513), PCI-6514 (pci-6514), PXI-6514 (pxi-6514),
- *   PCI-6515 (pxi-6515), PXI-6515 (pxi-6515), PCI-6516 (pci-6516),
- *   PCI-6517 (pci-6517), PCI-6518 (pci-6518), PCI-6519 (pci-6519),
- *   PCI-6520 (pci-6520), PCI-6521 (pci-6521), PXI-6521 (pxi-6521),
- *   PCI-6528 (pci-6528), PXI-6528 (pxi-6528)
- * Updated: Mon, 21 Jul 2014 12:49:58 +0000
- *
- * Configuration Options: not applicable, uses PCI auto config
- *
- * Based on the PCI-6527 driver by ds.
- * The interrupt subdevice (subdevice 3) is probably broken for all
- * boards except maybe the 6514.
- *
- * This driver previously inverted the outputs on PCI-6513 through to
- * PCI-6519 and on PXI-6513 through to PXI-6515.  It no longer inverts
- * outputs on those cards by default as it didn't make much sense.  If
- * you require the outputs to be inverted on those cards for legacy
- * reasons, set the module parameter "legacy_invert_outputs=true" when
- * loading the module, or set "ni_65xx.legacy_invert_outputs=true" on
- * the kernel command line if the driver is built in to the kernel.
- */
-
-/*
- * Manuals (available from ftp://ftp.natinst.com/support/manuals)
- *
- *	370106b.pdf	6514 Register Level Programmer Manual
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-/*
- * PCI BAR1 Register Map
- */
-
-/* Non-recurring Registers (8-bit except where noted) */
-#define NI_65XX_ID_REG			0x00
-#define NI_65XX_CLR_REG			0x01
-#define NI_65XX_CLR_WDOG_INT		(1 << 6)
-#define NI_65XX_CLR_WDOG_PING		(1 << 5)
-#define NI_65XX_CLR_WDOG_EXP		(1 << 4)
-#define NI_65XX_CLR_EDGE_INT		(1 << 3)
-#define NI_65XX_CLR_OVERFLOW_INT	(1 << 2)
-#define NI_65XX_STATUS_REG		0x02
-#define NI_65XX_STATUS_WDOG_INT		(1 << 5)
-#define NI_65XX_STATUS_FALL_EDGE	(1 << 4)
-#define NI_65XX_STATUS_RISE_EDGE	(1 << 3)
-#define NI_65XX_STATUS_INT		(1 << 2)
-#define NI_65XX_STATUS_OVERFLOW_INT	(1 << 1)
-#define NI_65XX_STATUS_EDGE_INT		(1 << 0)
-#define NI_65XX_CTRL_REG		0x03
-#define NI_65XX_CTRL_WDOG_ENA		(1 << 5)
-#define NI_65XX_CTRL_FALL_EDGE_ENA	(1 << 4)
-#define NI_65XX_CTRL_RISE_EDGE_ENA	(1 << 3)
-#define NI_65XX_CTRL_INT_ENA		(1 << 2)
-#define NI_65XX_CTRL_OVERFLOW_ENA	(1 << 1)
-#define NI_65XX_CTRL_EDGE_ENA		(1 << 0)
-#define NI_65XX_REV_REG			0x04 /* 32-bit */
-#define NI_65XX_FILTER_REG		0x08 /* 32-bit */
-#define NI_65XX_RTSI_ROUTE_REG		0x0c /* 16-bit */
-#define NI_65XX_RTSI_EDGE_REG		0x0e /* 16-bit */
-#define NI_65XX_RTSI_WDOG_REG		0x10 /* 16-bit */
-#define NI_65XX_RTSI_TRIG_REG		0x12 /* 16-bit */
-#define NI_65XX_AUTO_CLK_SEL_REG	0x14 /* PXI-6528 only */
-#define NI_65XX_AUTO_CLK_SEL_STATUS	(1 << 1)
-#define NI_65XX_AUTO_CLK_SEL_DISABLE	(1 << 0)
-#define NI_65XX_WDOG_CTRL_REG		0x15
-#define NI_65XX_WDOG_CTRL_ENA		(1 << 0)
-#define NI_65XX_RTSI_CFG_REG		0x16
-#define NI_65XX_RTSI_CFG_RISE_SENSE	(1 << 2)
-#define NI_65XX_RTSI_CFG_FALL_SENSE	(1 << 1)
-#define NI_65XX_RTSI_CFG_SYNC_DETECT	(1 << 0)
-#define NI_65XX_WDOG_STATUS_REG		0x17
-#define NI_65XX_WDOG_STATUS_EXP		(1 << 0)
-#define NI_65XX_WDOG_INTERVAL_REG	0x18 /* 32-bit */
-
-/* Recurring port registers (8-bit) */
-#define NI_65XX_PORT(x)			((x) * 0x10)
-#define NI_65XX_IO_DATA_REG(x)		(0x40 + NI_65XX_PORT(x))
-#define NI_65XX_IO_SEL_REG(x)		(0x41 + NI_65XX_PORT(x))
-#define NI_65XX_IO_SEL_OUTPUT		(0 << 0)
-#define NI_65XX_IO_SEL_INPUT		(1 << 0)
-#define NI_65XX_RISE_EDGE_ENA_REG(x)	(0x42 + NI_65XX_PORT(x))
-#define NI_65XX_FALL_EDGE_ENA_REG(x)	(0x43 + NI_65XX_PORT(x))
-#define NI_65XX_FILTER_ENA(x)		(0x44 + NI_65XX_PORT(x))
-#define NI_65XX_WDOG_HIZ_REG(x)		(0x46 + NI_65XX_PORT(x))
-#define NI_65XX_WDOG_ENA(x)		(0x47 + NI_65XX_PORT(x))
-#define NI_65XX_WDOG_HI_LO_REG(x)	(0x48 + NI_65XX_PORT(x))
-#define NI_65XX_RTSI_ENA(x)		(0x49 + NI_65XX_PORT(x))
-
-#define NI_65XX_PORT_TO_CHAN(x)		((x) * 8)
-#define NI_65XX_CHAN_TO_PORT(x)		((x) / 8)
-#define NI_65XX_CHAN_TO_MASK(x)		(1 << ((x) % 8))
-
-enum ni_65xx_boardid {
-	BOARD_PCI6509,
-	BOARD_PXI6509,
-	BOARD_PCI6510,
-	BOARD_PCI6511,
-	BOARD_PXI6511,
-	BOARD_PCI6512,
-	BOARD_PXI6512,
-	BOARD_PCI6513,
-	BOARD_PXI6513,
-	BOARD_PCI6514,
-	BOARD_PXI6514,
-	BOARD_PCI6515,
-	BOARD_PXI6515,
-	BOARD_PCI6516,
-	BOARD_PCI6517,
-	BOARD_PCI6518,
-	BOARD_PCI6519,
-	BOARD_PCI6520,
-	BOARD_PCI6521,
-	BOARD_PXI6521,
-	BOARD_PCI6528,
-	BOARD_PXI6528,
-};
-
-struct ni_65xx_board {
-	const char *name;
-	unsigned num_dio_ports;
-	unsigned num_di_ports;
-	unsigned num_do_ports;
-	unsigned legacy_invert:1;
-};
-
-static const struct ni_65xx_board ni_65xx_boards[] = {
-	[BOARD_PCI6509] = {
-		.name		= "pci-6509",
-		.num_dio_ports	= 12,
-	},
-	[BOARD_PXI6509] = {
-		.name		= "pxi-6509",
-		.num_dio_ports	= 12,
-	},
-	[BOARD_PCI6510] = {
-		.name		= "pci-6510",
-		.num_di_ports	= 4,
-	},
-	[BOARD_PCI6511] = {
-		.name		= "pci-6511",
-		.num_di_ports	= 8,
-	},
-	[BOARD_PXI6511] = {
-		.name		= "pxi-6511",
-		.num_di_ports	= 8,
-	},
-	[BOARD_PCI6512] = {
-		.name		= "pci-6512",
-		.num_do_ports	= 8,
-	},
-	[BOARD_PXI6512] = {
-		.name		= "pxi-6512",
-		.num_do_ports	= 8,
-	},
-	[BOARD_PCI6513] = {
-		.name		= "pci-6513",
-		.num_do_ports	= 8,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PXI6513] = {
-		.name		= "pxi-6513",
-		.num_do_ports	= 8,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PCI6514] = {
-		.name		= "pci-6514",
-		.num_di_ports	= 4,
-		.num_do_ports	= 4,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PXI6514] = {
-		.name		= "pxi-6514",
-		.num_di_ports	= 4,
-		.num_do_ports	= 4,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PCI6515] = {
-		.name		= "pci-6515",
-		.num_di_ports	= 4,
-		.num_do_ports	= 4,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PXI6515] = {
-		.name		= "pxi-6515",
-		.num_di_ports	= 4,
-		.num_do_ports	= 4,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PCI6516] = {
-		.name		= "pci-6516",
-		.num_do_ports	= 4,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PCI6517] = {
-		.name		= "pci-6517",
-		.num_do_ports	= 4,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PCI6518] = {
-		.name		= "pci-6518",
-		.num_di_ports	= 2,
-		.num_do_ports	= 2,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PCI6519] = {
-		.name		= "pci-6519",
-		.num_di_ports	= 2,
-		.num_do_ports	= 2,
-		.legacy_invert	= 1,
-	},
-	[BOARD_PCI6520] = {
-		.name		= "pci-6520",
-		.num_di_ports	= 1,
-		.num_do_ports	= 1,
-	},
-	[BOARD_PCI6521] = {
-		.name		= "pci-6521",
-		.num_di_ports	= 1,
-		.num_do_ports	= 1,
-	},
-	[BOARD_PXI6521] = {
-		.name		= "pxi-6521",
-		.num_di_ports	= 1,
-		.num_do_ports	= 1,
-	},
-	[BOARD_PCI6528] = {
-		.name		= "pci-6528",
-		.num_di_ports	= 3,
-		.num_do_ports	= 3,
-	},
-	[BOARD_PXI6528] = {
-		.name		= "pxi-6528",
-		.num_di_ports	= 3,
-		.num_do_ports	= 3,
-	},
-};
-
-static bool ni_65xx_legacy_invert_outputs;
-module_param_named(legacy_invert_outputs, ni_65xx_legacy_invert_outputs,
-		   bool, 0444);
-MODULE_PARM_DESC(legacy_invert_outputs,
-		 "invert outputs of PCI/PXI-6513/6514/6515/6516/6517/6518/6519 for compatibility with old user code");
-
-static unsigned int ni_65xx_num_ports(struct comedi_device *dev)
-{
-	const struct ni_65xx_board *board = dev->board_ptr;
-
-	return board->num_dio_ports + board->num_di_ports + board->num_do_ports;
-}
-
-static void ni_65xx_disable_input_filters(struct comedi_device *dev)
-{
-	unsigned int num_ports = ni_65xx_num_ports(dev);
-	int i;
-
-	/* disable input filtering on all ports */
-	for (i = 0; i < num_ports; ++i)
-		writeb(0x00, dev->mmio + NI_65XX_FILTER_ENA(i));
-
-	/* set filter interval to 0 (32bit reg) */
-	writel(0x00000000, dev->mmio + NI_65XX_FILTER_REG);
-}
-
-/* updates edge detection for base_chan to base_chan+31 */
-static void ni_65xx_update_edge_detection(struct comedi_device *dev,
-					  unsigned int base_chan,
-					  unsigned int rising,
-					  unsigned int falling)
-{
-	unsigned int num_ports = ni_65xx_num_ports(dev);
-	unsigned int port;
-
-	if (base_chan >= NI_65XX_PORT_TO_CHAN(num_ports))
-		return;
-
-	for (port = NI_65XX_CHAN_TO_PORT(base_chan); port < num_ports; port++) {
-		int bitshift = (int)(NI_65XX_PORT_TO_CHAN(port) - base_chan);
-		unsigned int port_mask, port_rising, port_falling;
-
-		if (bitshift >= 32)
-			break;
-
-		if (bitshift >= 0) {
-			port_mask = ~0U >> bitshift;
-			port_rising = rising >> bitshift;
-			port_falling = falling >> bitshift;
-		} else {
-			port_mask = ~0U << -bitshift;
-			port_rising = rising << -bitshift;
-			port_falling = falling << -bitshift;
-		}
-		if (port_mask & 0xff) {
-			if (~port_mask & 0xff) {
-				port_rising |=
-				    readb(dev->mmio +
-					  NI_65XX_RISE_EDGE_ENA_REG(port)) &
-				    ~port_mask;
-				port_falling |=
-				    readb(dev->mmio +
-					  NI_65XX_FALL_EDGE_ENA_REG(port)) &
-				    ~port_mask;
-			}
-			writeb(port_rising & 0xff,
-			       dev->mmio + NI_65XX_RISE_EDGE_ENA_REG(port));
-			writeb(port_falling & 0xff,
-			       dev->mmio + NI_65XX_FALL_EDGE_ENA_REG(port));
-		}
-	}
-}
-
-static void ni_65xx_disable_edge_detection(struct comedi_device *dev)
-{
-	/* clear edge detection for channels 0 to 31 */
-	ni_65xx_update_edge_detection(dev, 0, 0, 0);
-	/* clear edge detection for channels 32 to 63 */
-	ni_65xx_update_edge_detection(dev, 32, 0, 0);
-	/* clear edge detection for channels 64 to 95 */
-	ni_65xx_update_edge_detection(dev, 64, 0, 0);
-}
-
-static int ni_65xx_dio_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned long base_port = (unsigned long)s->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int chan_mask = NI_65XX_CHAN_TO_MASK(chan);
-	unsigned port = base_port + NI_65XX_CHAN_TO_PORT(chan);
-	unsigned int interval;
-	unsigned int val;
-
-	switch (data[0]) {
-	case INSN_CONFIG_FILTER:
-		/*
-		 * The deglitch filter interval is specified in nanoseconds.
-		 * The hardware supports intervals in 200ns increments. Round
-		 * the user values up and return the actual interval.
-		 */
-		interval = (data[1] + 100) / 200;
-		if (interval > 0xfffff)
-			interval = 0xfffff;
-		data[1] = interval * 200;
-
-		/*
-		 * Enable/disable the channel for deglitch filtering. Note
-		 * that the filter interval is never set to '0'. This is done
-		 * because other channels might still be enabled for filtering.
-		 */
-		val = readb(dev->mmio + NI_65XX_FILTER_ENA(port));
-		if (interval) {
-			writel(interval, dev->mmio + NI_65XX_FILTER_REG);
-			val |= chan_mask;
-		} else {
-			val &= ~chan_mask;
-		}
-		writeb(val, dev->mmio + NI_65XX_FILTER_ENA(port));
-		break;
-
-	case INSN_CONFIG_DIO_OUTPUT:
-		if (s->type != COMEDI_SUBD_DIO)
-			return -EINVAL;
-		writeb(NI_65XX_IO_SEL_OUTPUT,
-		       dev->mmio + NI_65XX_IO_SEL_REG(port));
-		break;
-
-	case INSN_CONFIG_DIO_INPUT:
-		if (s->type != COMEDI_SUBD_DIO)
-			return -EINVAL;
-		writeb(NI_65XX_IO_SEL_INPUT,
-		       dev->mmio + NI_65XX_IO_SEL_REG(port));
-		break;
-
-	case INSN_CONFIG_DIO_QUERY:
-		if (s->type != COMEDI_SUBD_DIO)
-			return -EINVAL;
-		val = readb(dev->mmio + NI_65XX_IO_SEL_REG(port));
-		data[1] = (val == NI_65XX_IO_SEL_INPUT) ? COMEDI_INPUT
-							: COMEDI_OUTPUT;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned long base_port = (unsigned long)s->private;
-	unsigned int base_chan = CR_CHAN(insn->chanspec);
-	int last_port_offset = NI_65XX_CHAN_TO_PORT(s->n_chan - 1);
-	unsigned read_bits = 0;
-	int port_offset;
-
-	for (port_offset = NI_65XX_CHAN_TO_PORT(base_chan);
-	     port_offset <= last_port_offset; port_offset++) {
-		unsigned port = base_port + port_offset;
-		int base_port_channel = NI_65XX_PORT_TO_CHAN(port_offset);
-		unsigned port_mask, port_data, bits;
-		int bitshift = base_port_channel - base_chan;
-
-		if (bitshift >= 32)
-			break;
-		port_mask = data[0];
-		port_data = data[1];
-		if (bitshift > 0) {
-			port_mask >>= bitshift;
-			port_data >>= bitshift;
-		} else {
-			port_mask <<= -bitshift;
-			port_data <<= -bitshift;
-		}
-		port_mask &= 0xff;
-		port_data &= 0xff;
-
-		/* update the outputs */
-		if (port_mask) {
-			bits = readb(dev->mmio + NI_65XX_IO_DATA_REG(port));
-			bits ^= s->io_bits;	/* invert if necessary */
-			bits &= ~port_mask;
-			bits |= (port_data & port_mask);
-			bits ^= s->io_bits;	/* invert back */
-			writeb(bits, dev->mmio + NI_65XX_IO_DATA_REG(port));
-		}
-
-		/* read back the actual state */
-		bits = readb(dev->mmio + NI_65XX_IO_DATA_REG(port));
-		bits ^= s->io_bits;	/* invert if necessary */
-		if (bitshift > 0)
-			bits <<= bitshift;
-		else
-			bits >>= -bitshift;
-
-		read_bits |= bits;
-	}
-	data[1] = read_bits;
-	return insn->n;
-}
-
-static irqreturn_t ni_65xx_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int status;
-
-	status = readb(dev->mmio + NI_65XX_STATUS_REG);
-	if ((status & NI_65XX_STATUS_INT) == 0)
-		return IRQ_NONE;
-	if ((status & NI_65XX_STATUS_EDGE_INT) == 0)
-		return IRQ_NONE;
-
-	writeb(NI_65XX_CLR_EDGE_INT | NI_65XX_CLR_OVERFLOW_INT,
-	       dev->mmio + NI_65XX_CLR_REG);
-
-	comedi_buf_write_samples(s, &s->state, 1);
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int ni_65xx_intr_cmdtest(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_OTHER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int ni_65xx_intr_cmd(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	writeb(NI_65XX_CLR_EDGE_INT | NI_65XX_CLR_OVERFLOW_INT,
-	       dev->mmio + NI_65XX_CLR_REG);
-	writeb(NI_65XX_CTRL_FALL_EDGE_ENA | NI_65XX_CTRL_RISE_EDGE_ENA |
-	       NI_65XX_CTRL_INT_ENA | NI_65XX_CTRL_EDGE_ENA,
-	       dev->mmio + NI_65XX_CTRL_REG);
-
-	return 0;
-}
-
-static int ni_65xx_intr_cancel(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	writeb(0x00, dev->mmio + NI_65XX_CTRL_REG);
-
-	return 0;
-}
-
-static int ni_65xx_intr_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	data[1] = 0;
-	return insn->n;
-}
-
-static int ni_65xx_intr_insn_config(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	switch (data[0]) {
-	case INSN_CONFIG_CHANGE_NOTIFY:
-		/* add instruction to check_insn_config_length() */
-		if (insn->n != 3)
-			return -EINVAL;
-
-		/* update edge detection for channels 0 to 31 */
-		ni_65xx_update_edge_detection(dev, 0, data[1], data[2]);
-		/* clear edge detection for channels 32 to 63 */
-		ni_65xx_update_edge_detection(dev, 32, 0, 0);
-		/* clear edge detection for channels 64 to 95 */
-		ni_65xx_update_edge_detection(dev, 64, 0, 0);
-		break;
-	case INSN_CONFIG_DIGITAL_TRIG:
-		/* check trigger number */
-		if (data[1] != 0)
-			return -EINVAL;
-		/* check digital trigger operation */
-		switch (data[2]) {
-		case COMEDI_DIGITAL_TRIG_DISABLE:
-			ni_65xx_disable_edge_detection(dev);
-			break;
-		case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
-			/*
-			 * update edge detection for channels data[3]
-			 * to (data[3] + 31)
-			 */
-			ni_65xx_update_edge_detection(dev, data[3],
-						      data[4], data[5]);
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-/* ripped from mite.h and mite_setup2() to avoid mite dependency */
-#define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
-#define WENAB		(1 << 7) /* window enable */
-
-static int ni_65xx_mite_init(struct pci_dev *pcidev)
-{
-	void __iomem *mite_base;
-	u32 main_phys_addr;
-
-	/* ioremap the MITE registers (BAR 0) temporarily */
-	mite_base = pci_ioremap_bar(pcidev, 0);
-	if (!mite_base)
-		return -ENOMEM;
-
-	/* set data window to main registers (BAR 1) */
-	main_phys_addr = pci_resource_start(pcidev, 1);
-	writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR);
-
-	/* finished with MITE registers */
-	iounmap(mite_base);
-	return 0;
-}
-
-static int ni_65xx_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct ni_65xx_board *board = NULL;
-	struct comedi_subdevice *s;
-	unsigned i;
-	int ret;
-
-	if (context < ARRAY_SIZE(ni_65xx_boards))
-		board = &ni_65xx_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	ret = ni_65xx_mite_init(pcidev);
-	if (ret)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 1);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	writeb(NI_65XX_CLR_EDGE_INT | NI_65XX_CLR_OVERFLOW_INT,
-	       dev->mmio + NI_65XX_CLR_REG);
-	writeb(0x00, dev->mmio + NI_65XX_CTRL_REG);
-
-	if (pcidev->irq) {
-		ret = request_irq(pcidev->irq, ni_65xx_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	dev_info(dev->class_dev, "board: %s, ID=0x%02x", dev->board_name,
-		 readb(dev->mmio + NI_65XX_ID_REG));
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	if (board->num_di_ports) {
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= NI_65XX_PORT_TO_CHAN(board->num_di_ports);
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= ni_65xx_dio_insn_bits;
-		s->insn_config	= ni_65xx_dio_insn_config;
-
-		/* the input ports always start at port 0 */
-		s->private = (void *)0;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[1];
-	if (board->num_do_ports) {
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= NI_65XX_PORT_TO_CHAN(board->num_do_ports);
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= ni_65xx_dio_insn_bits;
-
-		/* the output ports always start after the input ports */
-		s->private = (void *)(unsigned long)board->num_di_ports;
-
-		/*
-		 * Use the io_bits to handle the inverted outputs.  Inverted
-		 * outputs are only supported if the "legacy_invert_outputs"
-		 * module parameter is set to "true".
-		 */
-		if (ni_65xx_legacy_invert_outputs && board->legacy_invert)
-			s->io_bits = 0xff;
-
-		/* reset all output ports to comedi '0' */
-		for (i = 0; i < board->num_do_ports; ++i) {
-			writeb(s->io_bits,	/* inverted if necessary */
-			       dev->mmio +
-			       NI_65XX_IO_DATA_REG(board->num_di_ports + i));
-		}
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[2];
-	if (board->num_dio_ports) {
-		s->type		= COMEDI_SUBD_DIO;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-		s->n_chan	= NI_65XX_PORT_TO_CHAN(board->num_dio_ports);
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= ni_65xx_dio_insn_bits;
-		s->insn_config	= ni_65xx_dio_insn_config;
-
-		/* the input/output ports always start at port 0 */
-		s->private = (void *)0;
-
-		/* configure all ports for input */
-		for (i = 0; i < board->num_dio_ports; ++i) {
-			writeb(NI_65XX_IO_SEL_INPUT,
-			       dev->mmio + NI_65XX_IO_SEL_REG(i));
-		}
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= ni_65xx_intr_insn_bits;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= 1;
-		s->insn_config	= ni_65xx_intr_insn_config;
-		s->do_cmdtest	= ni_65xx_intr_cmdtest;
-		s->do_cmd	= ni_65xx_intr_cmd;
-		s->cancel	= ni_65xx_intr_cancel;
-	}
-
-	ni_65xx_disable_input_filters(dev);
-	ni_65xx_disable_edge_detection(dev);
-
-	return 0;
-}
-
-static void ni_65xx_detach(struct comedi_device *dev)
-{
-	if (dev->mmio)
-		writeb(0x00, dev->mmio + NI_65XX_CTRL_REG);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver ni_65xx_driver = {
-	.driver_name	= "ni_65xx",
-	.module		= THIS_MODULE,
-	.auto_attach	= ni_65xx_auto_attach,
-	.detach		= ni_65xx_detach,
-};
-
-static int ni_65xx_pci_probe(struct pci_dev *dev,
-			     const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &ni_65xx_driver, id->driver_data);
-}
-
-static const struct pci_device_id ni_65xx_pci_table[] = {
-	{ PCI_VDEVICE(NI, 0x1710), BOARD_PXI6509 },
-	{ PCI_VDEVICE(NI, 0x7085), BOARD_PCI6509 },
-	{ PCI_VDEVICE(NI, 0x7086), BOARD_PXI6528 },
-	{ PCI_VDEVICE(NI, 0x7087), BOARD_PCI6515 },
-	{ PCI_VDEVICE(NI, 0x7088), BOARD_PCI6514 },
-	{ PCI_VDEVICE(NI, 0x70a9), BOARD_PCI6528 },
-	{ PCI_VDEVICE(NI, 0x70c3), BOARD_PCI6511 },
-	{ PCI_VDEVICE(NI, 0x70c8), BOARD_PCI6513 },
-	{ PCI_VDEVICE(NI, 0x70c9), BOARD_PXI6515 },
-	{ PCI_VDEVICE(NI, 0x70cc), BOARD_PCI6512 },
-	{ PCI_VDEVICE(NI, 0x70cd), BOARD_PXI6514 },
-	{ PCI_VDEVICE(NI, 0x70d1), BOARD_PXI6513 },
-	{ PCI_VDEVICE(NI, 0x70d2), BOARD_PXI6512 },
-	{ PCI_VDEVICE(NI, 0x70d3), BOARD_PXI6511 },
-	{ PCI_VDEVICE(NI, 0x7124), BOARD_PCI6510 },
-	{ PCI_VDEVICE(NI, 0x7125), BOARD_PCI6516 },
-	{ PCI_VDEVICE(NI, 0x7126), BOARD_PCI6517 },
-	{ PCI_VDEVICE(NI, 0x7127), BOARD_PCI6518 },
-	{ PCI_VDEVICE(NI, 0x7128), BOARD_PCI6519 },
-	{ PCI_VDEVICE(NI, 0x718b), BOARD_PCI6521 },
-	{ PCI_VDEVICE(NI, 0x718c), BOARD_PXI6521 },
-	{ PCI_VDEVICE(NI, 0x71c5), BOARD_PCI6520 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ni_65xx_pci_table);
-
-static struct pci_driver ni_65xx_pci_driver = {
-	.name		= "ni_65xx",
-	.id_table	= ni_65xx_pci_table,
-	.probe		= ni_65xx_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(ni_65xx_driver, ni_65xx_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for NI PCI-65xx static dio boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
deleted file mode 100644
index 46647c64f369..000000000000
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ /dev/null
@@ -1,1222 +0,0 @@
-/*
-  comedi/drivers/ni_660x.c
-  Hardware driver for NI 660x devices
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-*/
-
-/*
- * Driver: ni_660x
- * Description: National Instruments 660x counter/timer boards
- * Devices: [National Instruments] PCI-6601 (ni_660x), PCI-6602, PXI-6602,
- *   PXI-6608, PXI-6624
- * Author: J.P. Mellor <jpmellor@rose-hulman.edu>,
- *   Herman.Bruyninckx@mech.kuleuven.ac.be,
- *   Wim.Meeussen@mech.kuleuven.ac.be,
- *   Klaas.Gadeyne@mech.kuleuven.ac.be,
- *   Frank Mori Hess <fmhess@users.sourceforge.net>
- * Updated: Fri, 15 Mar 2013 10:47:56 +0000
- * Status: experimental
- *
- * Encoders work.  PulseGeneration (both single pulse and pulse train)
- * works.  Buffered commands work for input but not output.
- *
- * References:
- * DAQ 660x Register-Level Programmer Manual  (NI 370505A-01)
- * DAQ 6601/6602 User Manual (NI 322137B-01)
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "mite.h"
-#include "ni_tio.h"
-
-enum ni_660x_constants {
-	min_counter_pfi_chan = 8,
-	max_dio_pfi_chan = 31,
-	counters_per_chip = 4
-};
-
-#define NUM_PFI_CHANNELS 40
-/* really there are only up to 3 dma channels, but the register layout allows
-for 4 */
-#define MAX_DMA_CHANNEL 4
-
-/* See Register-Level Programmer Manual page 3.1 */
-enum ni_660x_register {
-	NI660X_G0_INT_ACK,
-	NI660X_G0_STATUS,
-	NI660X_G1_INT_ACK,
-	NI660X_G1_STATUS,
-	NI660X_G01_STATUS,
-	NI660X_G0_CMD,
-	NI660X_STC_DIO_PARALLEL_INPUT,
-	NI660X_G1_CMD,
-	NI660X_G0_HW_SAVE,
-	NI660X_G1_HW_SAVE,
-	NI660X_STC_DIO_OUTPUT,
-	NI660X_STC_DIO_CONTROL,
-	NI660X_G0_SW_SAVE,
-	NI660X_G1_SW_SAVE,
-	NI660X_G0_MODE,
-	NI660X_G01_STATUS1,
-	NI660X_G1_MODE,
-	NI660X_STC_DIO_SERIAL_INPUT,
-	NI660X_G0_LOADA,
-	NI660X_G01_STATUS2,
-	NI660X_G0_LOADB,
-	NI660X_G1_LOADA,
-	NI660X_G1_LOADB,
-	NI660X_G0_INPUT_SEL,
-	NI660X_G1_INPUT_SEL,
-	NI660X_G0_AUTO_INC,
-	NI660X_G1_AUTO_INC,
-	NI660X_G01_RESET,
-	NI660X_G0_INT_ENA,
-	NI660X_G1_INT_ENA,
-	NI660X_G0_CNT_MODE,
-	NI660X_G1_CNT_MODE,
-	NI660X_G0_GATE2,
-	NI660X_G1_GATE2,
-	NI660X_G0_DMA_CFG,
-	NI660X_G0_DMA_STATUS,
-	NI660X_G1_DMA_CFG,
-	NI660X_G1_DMA_STATUS,
-	NI660X_G2_INT_ACK,
-	NI660X_G2_STATUS,
-	NI660X_G3_INT_ACK,
-	NI660X_G3_STATUS,
-	NI660X_G23_STATUS,
-	NI660X_G2_CMD,
-	NI660X_G3_CMD,
-	NI660X_G2_HW_SAVE,
-	NI660X_G3_HW_SAVE,
-	NI660X_G2_SW_SAVE,
-	NI660X_G3_SW_SAVE,
-	NI660X_G2_MODE,
-	NI660X_G23_STATUS1,
-	NI660X_G3_MODE,
-	NI660X_G2_LOADA,
-	NI660X_G23_STATUS2,
-	NI660X_G2_LOADB,
-	NI660X_G3_LOADA,
-	NI660X_G3_LOADB,
-	NI660X_G2_INPUT_SEL,
-	NI660X_G3_INPUT_SEL,
-	NI660X_G2_AUTO_INC,
-	NI660X_G3_AUTO_INC,
-	NI660X_G23_RESET,
-	NI660X_G2_INT_ENA,
-	NI660X_G3_INT_ENA,
-	NI660X_G2_CNT_MODE,
-	NI660X_G3_CNT_MODE,
-	NI660X_G3_GATE2,
-	NI660X_G2_GATE2,
-	NI660X_G2_DMA_CFG,
-	NI660X_G2_DMA_STATUS,
-	NI660X_G3_DMA_CFG,
-	NI660X_G3_DMA_STATUS,
-	NI660X_DIO32_INPUT,
-	NI660X_DIO32_OUTPUT,
-	NI660X_CLK_CFG,
-	NI660X_GLOBAL_INT_STATUS,
-	NI660X_DMA_CFG,
-	NI660X_GLOBAL_INT_CFG,
-	NI660X_IO_CFG_0_1,
-	NI660X_IO_CFG_2_3,
-	NI660X_IO_CFG_4_5,
-	NI660X_IO_CFG_6_7,
-	NI660X_IO_CFG_8_9,
-	NI660X_IO_CFG_10_11,
-	NI660X_IO_CFG_12_13,
-	NI660X_IO_CFG_14_15,
-	NI660X_IO_CFG_16_17,
-	NI660X_IO_CFG_18_19,
-	NI660X_IO_CFG_20_21,
-	NI660X_IO_CFG_22_23,
-	NI660X_IO_CFG_24_25,
-	NI660X_IO_CFG_26_27,
-	NI660X_IO_CFG_28_29,
-	NI660X_IO_CFG_30_31,
-	NI660X_IO_CFG_32_33,
-	NI660X_IO_CFG_34_35,
-	NI660X_IO_CFG_36_37,
-	NI660X_IO_CFG_38_39,
-	NI660X_NUM_REGS,
-};
-
-static inline unsigned IOConfigReg(unsigned pfi_channel)
-{
-	unsigned reg = NI660X_IO_CFG_0_1 + pfi_channel / 2;
-
-	BUG_ON(reg > NI660X_IO_CFG_38_39);
-	return reg;
-}
-
-enum ni_660x_register_width {
-	DATA_1B,
-	DATA_2B,
-	DATA_4B
-};
-
-enum ni_660x_register_direction {
-	NI_660x_READ,
-	NI_660x_WRITE,
-	NI_660x_READ_WRITE
-};
-
-enum ni_660x_pfi_output_select {
-	pfi_output_select_high_Z = 0,
-	pfi_output_select_counter = 1,
-	pfi_output_select_do = 2,
-	num_pfi_output_selects
-};
-
-enum ni_660x_subdevices {
-	NI_660X_DIO_SUBDEV = 1,
-	NI_660X_GPCT_SUBDEV_0 = 2
-};
-static inline unsigned NI_660X_GPCT_SUBDEV(unsigned index)
-{
-	return NI_660X_GPCT_SUBDEV_0 + index;
-}
-
-struct NI_660xRegisterData {
-	const char *name;	/*  Register Name */
-	int offset;		/*  Offset from base address from GPCT chip */
-	enum ni_660x_register_direction direction;
-	enum ni_660x_register_width size; /* 1 byte, 2 bytes, or 4 bytes */
-};
-
-static const struct NI_660xRegisterData registerData[NI660X_NUM_REGS] = {
-	{"G0 Interrupt Acknowledge", 0x004, NI_660x_WRITE, DATA_2B},
-	{"G0 Status Register", 0x004, NI_660x_READ, DATA_2B},
-	{"G1 Interrupt Acknowledge", 0x006, NI_660x_WRITE, DATA_2B},
-	{"G1 Status Register", 0x006, NI_660x_READ, DATA_2B},
-	{"G01 Status Register ", 0x008, NI_660x_READ, DATA_2B},
-	{"G0 Command Register", 0x00C, NI_660x_WRITE, DATA_2B},
-	{"STC DIO Parallel Input", 0x00E, NI_660x_READ, DATA_2B},
-	{"G1 Command Register", 0x00E, NI_660x_WRITE, DATA_2B},
-	{"G0 HW Save Register", 0x010, NI_660x_READ, DATA_4B},
-	{"G1 HW Save Register", 0x014, NI_660x_READ, DATA_4B},
-	{"STC DIO Output", 0x014, NI_660x_WRITE, DATA_2B},
-	{"STC DIO Control", 0x016, NI_660x_WRITE, DATA_2B},
-	{"G0 SW Save Register", 0x018, NI_660x_READ, DATA_4B},
-	{"G1 SW Save Register", 0x01C, NI_660x_READ, DATA_4B},
-	{"G0 Mode Register", 0x034, NI_660x_WRITE, DATA_2B},
-	{"G01 Joint Status 1 Register", 0x036, NI_660x_READ, DATA_2B},
-	{"G1 Mode Register", 0x036, NI_660x_WRITE, DATA_2B},
-	{"STC DIO Serial Input", 0x038, NI_660x_READ, DATA_2B},
-	{"G0 Load A Register", 0x038, NI_660x_WRITE, DATA_4B},
-	{"G01 Joint Status 2 Register", 0x03A, NI_660x_READ, DATA_2B},
-	{"G0 Load B Register", 0x03C, NI_660x_WRITE, DATA_4B},
-	{"G1 Load A Register", 0x040, NI_660x_WRITE, DATA_4B},
-	{"G1 Load B Register", 0x044, NI_660x_WRITE, DATA_4B},
-	{"G0 Input Select Register", 0x048, NI_660x_WRITE, DATA_2B},
-	{"G1 Input Select Register", 0x04A, NI_660x_WRITE, DATA_2B},
-	{"G0 Autoincrement Register", 0x088, NI_660x_WRITE, DATA_2B},
-	{"G1 Autoincrement Register", 0x08A, NI_660x_WRITE, DATA_2B},
-	{"G01 Joint Reset Register", 0x090, NI_660x_WRITE, DATA_2B},
-	{"G0 Interrupt Enable", 0x092, NI_660x_WRITE, DATA_2B},
-	{"G1 Interrupt Enable", 0x096, NI_660x_WRITE, DATA_2B},
-	{"G0 Counting Mode Register", 0x0B0, NI_660x_WRITE, DATA_2B},
-	{"G1 Counting Mode Register", 0x0B2, NI_660x_WRITE, DATA_2B},
-	{"G0 Second Gate Register", 0x0B4, NI_660x_WRITE, DATA_2B},
-	{"G1 Second Gate Register", 0x0B6, NI_660x_WRITE, DATA_2B},
-	{"G0 DMA Config Register", 0x0B8, NI_660x_WRITE, DATA_2B},
-	{"G0 DMA Status Register", 0x0B8, NI_660x_READ, DATA_2B},
-	{"G1 DMA Config Register", 0x0BA, NI_660x_WRITE, DATA_2B},
-	{"G1 DMA Status Register", 0x0BA, NI_660x_READ, DATA_2B},
-	{"G2 Interrupt Acknowledge", 0x104, NI_660x_WRITE, DATA_2B},
-	{"G2 Status Register", 0x104, NI_660x_READ, DATA_2B},
-	{"G3 Interrupt Acknowledge", 0x106, NI_660x_WRITE, DATA_2B},
-	{"G3 Status Register", 0x106, NI_660x_READ, DATA_2B},
-	{"G23 Status Register", 0x108, NI_660x_READ, DATA_2B},
-	{"G2 Command Register", 0x10C, NI_660x_WRITE, DATA_2B},
-	{"G3 Command Register", 0x10E, NI_660x_WRITE, DATA_2B},
-	{"G2 HW Save Register", 0x110, NI_660x_READ, DATA_4B},
-	{"G3 HW Save Register", 0x114, NI_660x_READ, DATA_4B},
-	{"G2 SW Save Register", 0x118, NI_660x_READ, DATA_4B},
-	{"G3 SW Save Register", 0x11C, NI_660x_READ, DATA_4B},
-	{"G2 Mode Register", 0x134, NI_660x_WRITE, DATA_2B},
-	{"G23 Joint Status 1 Register", 0x136, NI_660x_READ, DATA_2B},
-	{"G3 Mode Register", 0x136, NI_660x_WRITE, DATA_2B},
-	{"G2 Load A Register", 0x138, NI_660x_WRITE, DATA_4B},
-	{"G23 Joint Status 2 Register", 0x13A, NI_660x_READ, DATA_2B},
-	{"G2 Load B Register", 0x13C, NI_660x_WRITE, DATA_4B},
-	{"G3 Load A Register", 0x140, NI_660x_WRITE, DATA_4B},
-	{"G3 Load B Register", 0x144, NI_660x_WRITE, DATA_4B},
-	{"G2 Input Select Register", 0x148, NI_660x_WRITE, DATA_2B},
-	{"G3 Input Select Register", 0x14A, NI_660x_WRITE, DATA_2B},
-	{"G2 Autoincrement Register", 0x188, NI_660x_WRITE, DATA_2B},
-	{"G3 Autoincrement Register", 0x18A, NI_660x_WRITE, DATA_2B},
-	{"G23 Joint Reset Register", 0x190, NI_660x_WRITE, DATA_2B},
-	{"G2 Interrupt Enable", 0x192, NI_660x_WRITE, DATA_2B},
-	{"G3 Interrupt Enable", 0x196, NI_660x_WRITE, DATA_2B},
-	{"G2 Counting Mode Register", 0x1B0, NI_660x_WRITE, DATA_2B},
-	{"G3 Counting Mode Register", 0x1B2, NI_660x_WRITE, DATA_2B},
-	{"G3 Second Gate Register", 0x1B6, NI_660x_WRITE, DATA_2B},
-	{"G2 Second Gate Register", 0x1B4, NI_660x_WRITE, DATA_2B},
-	{"G2 DMA Config Register", 0x1B8, NI_660x_WRITE, DATA_2B},
-	{"G2 DMA Status Register", 0x1B8, NI_660x_READ, DATA_2B},
-	{"G3 DMA Config Register", 0x1BA, NI_660x_WRITE, DATA_2B},
-	{"G3 DMA Status Register", 0x1BA, NI_660x_READ, DATA_2B},
-	{"32 bit Digital Input", 0x414, NI_660x_READ, DATA_4B},
-	{"32 bit Digital Output", 0x510, NI_660x_WRITE, DATA_4B},
-	{"Clock Config Register", 0x73C, NI_660x_WRITE, DATA_4B},
-	{"Global Interrupt Status Register", 0x754, NI_660x_READ, DATA_4B},
-	{"DMA Configuration Register", 0x76C, NI_660x_WRITE, DATA_4B},
-	{"Global Interrupt Config Register", 0x770, NI_660x_WRITE, DATA_4B},
-	{"IO Config Register 0-1", 0x77C, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 2-3", 0x77E, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 4-5", 0x780, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 6-7", 0x782, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 8-9", 0x784, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 10-11", 0x786, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 12-13", 0x788, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 14-15", 0x78A, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 16-17", 0x78C, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 18-19", 0x78E, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 20-21", 0x790, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 22-23", 0x792, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 24-25", 0x794, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 26-27", 0x796, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 28-29", 0x798, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 30-31", 0x79A, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 32-33", 0x79C, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 34-35", 0x79E, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 36-37", 0x7A0, NI_660x_READ_WRITE, DATA_2B},
-	{"IO Config Register 38-39", 0x7A2, NI_660x_READ_WRITE, DATA_2B}
-};
-
-/* kind of ENABLE for the second counter */
-enum clock_config_register_bits {
-	CounterSwap = 0x1 << 21
-};
-
-/* ioconfigreg */
-static inline unsigned ioconfig_bitshift(unsigned pfi_channel)
-{
-	return (pfi_channel % 2) ? 0 : 8;
-}
-
-static inline unsigned pfi_output_select_mask(unsigned pfi_channel)
-{
-	return 0x3 << ioconfig_bitshift(pfi_channel);
-}
-
-static inline unsigned pfi_output_select_bits(unsigned pfi_channel,
-					      unsigned output_select)
-{
-	return (output_select & 0x3) << ioconfig_bitshift(pfi_channel);
-}
-
-static inline unsigned pfi_input_select_mask(unsigned pfi_channel)
-{
-	return 0x7 << (4 + ioconfig_bitshift(pfi_channel));
-}
-
-static inline unsigned pfi_input_select_bits(unsigned pfi_channel,
-					     unsigned input_select)
-{
-	return (input_select & 0x7) << (4 + ioconfig_bitshift(pfi_channel));
-}
-
-/* dma configuration register bits */
-static inline unsigned dma_select_mask(unsigned dma_channel)
-{
-	BUG_ON(dma_channel >= MAX_DMA_CHANNEL);
-	return 0x1f << (8 * dma_channel);
-}
-
-enum dma_selection {
-	dma_selection_none = 0x1f,
-};
-
-static inline unsigned dma_select_bits(unsigned dma_channel, unsigned selection)
-{
-	BUG_ON(dma_channel >= MAX_DMA_CHANNEL);
-	return (selection << (8 * dma_channel)) & dma_select_mask(dma_channel);
-}
-
-static inline unsigned dma_reset_bit(unsigned dma_channel)
-{
-	BUG_ON(dma_channel >= MAX_DMA_CHANNEL);
-	return 0x80 << (8 * dma_channel);
-}
-
-enum global_interrupt_status_register_bits {
-	Counter_0_Int_Bit = 0x100,
-	Counter_1_Int_Bit = 0x200,
-	Counter_2_Int_Bit = 0x400,
-	Counter_3_Int_Bit = 0x800,
-	Cascade_Int_Bit = 0x20000000,
-	Global_Int_Bit = 0x80000000
-};
-
-enum global_interrupt_config_register_bits {
-	Cascade_Int_Enable_Bit = 0x20000000,
-	Global_Int_Polarity_Bit = 0x40000000,
-	Global_Int_Enable_Bit = 0x80000000
-};
-
-/* Offset of the GPCT chips from the base-address of the card */
-/* First chip is at base-address + 0x00, etc. */
-static const unsigned GPCT_OFFSET[2] = { 0x0, 0x800 };
-
-enum ni_660x_boardid {
-	BOARD_PCI6601,
-	BOARD_PCI6602,
-	BOARD_PXI6602,
-	BOARD_PXI6608,
-	BOARD_PXI6624
-};
-
-struct ni_660x_board {
-	const char *name;
-	unsigned n_chips;	/* total number of TIO chips */
-};
-
-static const struct ni_660x_board ni_660x_boards[] = {
-	[BOARD_PCI6601] = {
-		.name		= "PCI-6601",
-		.n_chips	= 1,
-	},
-	[BOARD_PCI6602] = {
-		.name		= "PCI-6602",
-		.n_chips	= 2,
-	},
-	[BOARD_PXI6602] = {
-		.name		= "PXI-6602",
-		.n_chips	= 2,
-	},
-	[BOARD_PXI6608] = {
-		.name		= "PXI-6608",
-		.n_chips	= 2,
-	},
-	[BOARD_PXI6624] = {
-		.name		= "PXI-6624",
-		.n_chips	= 2,
-	},
-};
-
-#define NI_660X_MAX_NUM_CHIPS 2
-#define NI_660X_MAX_NUM_COUNTERS (NI_660X_MAX_NUM_CHIPS * counters_per_chip)
-
-struct ni_660x_private {
-	struct mite_struct *mite;
-	struct ni_gpct_device *counter_dev;
-	uint64_t pfi_direction_bits;
-	struct mite_dma_descriptor_ring
-	*mite_rings[NI_660X_MAX_NUM_CHIPS][counters_per_chip];
-	spinlock_t mite_channel_lock;
-	/* interrupt_lock prevents races between interrupt and comedi_poll */
-	spinlock_t interrupt_lock;
-	unsigned dma_configuration_soft_copies[NI_660X_MAX_NUM_CHIPS];
-	spinlock_t soft_reg_copy_lock;
-	unsigned short pfi_output_selects[NUM_PFI_CHANNELS];
-};
-
-static inline unsigned ni_660x_num_counters(struct comedi_device *dev)
-{
-	const struct ni_660x_board *board = dev->board_ptr;
-
-	return board->n_chips * counters_per_chip;
-}
-
-static enum ni_660x_register ni_gpct_to_660x_register(enum ni_gpct_register reg)
-{
-	switch (reg) {
-	case NITIO_G0_AUTO_INC:
-		return NI660X_G0_AUTO_INC;
-	case NITIO_G1_AUTO_INC:
-		return NI660X_G1_AUTO_INC;
-	case NITIO_G2_AUTO_INC:
-		return NI660X_G2_AUTO_INC;
-	case NITIO_G3_AUTO_INC:
-		return NI660X_G3_AUTO_INC;
-	case NITIO_G0_CMD:
-		return NI660X_G0_CMD;
-	case NITIO_G1_CMD:
-		return NI660X_G1_CMD;
-	case NITIO_G2_CMD:
-		return NI660X_G2_CMD;
-	case NITIO_G3_CMD:
-		return NI660X_G3_CMD;
-	case NITIO_G0_HW_SAVE:
-		return NI660X_G0_HW_SAVE;
-	case NITIO_G1_HW_SAVE:
-		return NI660X_G1_HW_SAVE;
-	case NITIO_G2_HW_SAVE:
-		return NI660X_G2_HW_SAVE;
-	case NITIO_G3_HW_SAVE:
-		return NI660X_G3_HW_SAVE;
-	case NITIO_G0_SW_SAVE:
-		return NI660X_G0_SW_SAVE;
-	case NITIO_G1_SW_SAVE:
-		return NI660X_G1_SW_SAVE;
-	case NITIO_G2_SW_SAVE:
-		return NI660X_G2_SW_SAVE;
-	case NITIO_G3_SW_SAVE:
-		return NI660X_G3_SW_SAVE;
-	case NITIO_G0_MODE:
-		return NI660X_G0_MODE;
-	case NITIO_G1_MODE:
-		return NI660X_G1_MODE;
-	case NITIO_G2_MODE:
-		return NI660X_G2_MODE;
-	case NITIO_G3_MODE:
-		return NI660X_G3_MODE;
-	case NITIO_G0_LOADA:
-		return NI660X_G0_LOADA;
-	case NITIO_G1_LOADA:
-		return NI660X_G1_LOADA;
-	case NITIO_G2_LOADA:
-		return NI660X_G2_LOADA;
-	case NITIO_G3_LOADA:
-		return NI660X_G3_LOADA;
-	case NITIO_G0_LOADB:
-		return NI660X_G0_LOADB;
-	case NITIO_G1_LOADB:
-		return NI660X_G1_LOADB;
-	case NITIO_G2_LOADB:
-		return NI660X_G2_LOADB;
-	case NITIO_G3_LOADB:
-		return NI660X_G3_LOADB;
-	case NITIO_G0_INPUT_SEL:
-		return NI660X_G0_INPUT_SEL;
-	case NITIO_G1_INPUT_SEL:
-		return NI660X_G1_INPUT_SEL;
-	case NITIO_G2_INPUT_SEL:
-		return NI660X_G2_INPUT_SEL;
-	case NITIO_G3_INPUT_SEL:
-		return NI660X_G3_INPUT_SEL;
-	case NITIO_G01_STATUS:
-		return NI660X_G01_STATUS;
-	case NITIO_G23_STATUS:
-		return NI660X_G23_STATUS;
-	case NITIO_G01_RESET:
-		return NI660X_G01_RESET;
-	case NITIO_G23_RESET:
-		return NI660X_G23_RESET;
-	case NITIO_G01_STATUS1:
-		return NI660X_G01_STATUS1;
-	case NITIO_G23_STATUS1:
-		return NI660X_G23_STATUS1;
-	case NITIO_G01_STATUS2:
-		return NI660X_G01_STATUS2;
-	case NITIO_G23_STATUS2:
-		return NI660X_G23_STATUS2;
-	case NITIO_G0_CNT_MODE:
-		return NI660X_G0_CNT_MODE;
-	case NITIO_G1_CNT_MODE:
-		return NI660X_G1_CNT_MODE;
-	case NITIO_G2_CNT_MODE:
-		return NI660X_G2_CNT_MODE;
-	case NITIO_G3_CNT_MODE:
-		return NI660X_G3_CNT_MODE;
-	case NITIO_G0_GATE2:
-		return NI660X_G0_GATE2;
-	case NITIO_G1_GATE2:
-		return NI660X_G1_GATE2;
-	case NITIO_G2_GATE2:
-		return NI660X_G2_GATE2;
-	case NITIO_G3_GATE2:
-		return NI660X_G3_GATE2;
-	case NITIO_G0_DMA_CFG:
-		return NI660X_G0_DMA_CFG;
-	case NITIO_G0_DMA_STATUS:
-		return NI660X_G0_DMA_STATUS;
-	case NITIO_G1_DMA_CFG:
-		return NI660X_G1_DMA_CFG;
-	case NITIO_G1_DMA_STATUS:
-		return NI660X_G1_DMA_STATUS;
-	case NITIO_G2_DMA_CFG:
-		return NI660X_G2_DMA_CFG;
-	case NITIO_G2_DMA_STATUS:
-		return NI660X_G2_DMA_STATUS;
-	case NITIO_G3_DMA_CFG:
-		return NI660X_G3_DMA_CFG;
-	case NITIO_G3_DMA_STATUS:
-		return NI660X_G3_DMA_STATUS;
-	case NITIO_G0_INT_ACK:
-		return NI660X_G0_INT_ACK;
-	case NITIO_G1_INT_ACK:
-		return NI660X_G1_INT_ACK;
-	case NITIO_G2_INT_ACK:
-		return NI660X_G2_INT_ACK;
-	case NITIO_G3_INT_ACK:
-		return NI660X_G3_INT_ACK;
-	case NITIO_G0_STATUS:
-		return NI660X_G0_STATUS;
-	case NITIO_G1_STATUS:
-		return NI660X_G1_STATUS;
-	case NITIO_G2_STATUS:
-		return NI660X_G2_STATUS;
-	case NITIO_G3_STATUS:
-		return NI660X_G3_STATUS;
-	case NITIO_G0_INT_ENA:
-		return NI660X_G0_INT_ENA;
-	case NITIO_G1_INT_ENA:
-		return NI660X_G1_INT_ENA;
-	case NITIO_G2_INT_ENA:
-		return NI660X_G2_INT_ENA;
-	case NITIO_G3_INT_ENA:
-		return NI660X_G3_INT_ENA;
-	default:
-		BUG();
-		return 0;
-	}
-}
-
-static inline void ni_660x_write_register(struct comedi_device *dev,
-					  unsigned chip, unsigned bits,
-					  enum ni_660x_register reg)
-{
-	unsigned int addr = GPCT_OFFSET[chip] + registerData[reg].offset;
-
-	switch (registerData[reg].size) {
-	case DATA_2B:
-		writew(bits, dev->mmio + addr);
-		break;
-	case DATA_4B:
-		writel(bits, dev->mmio + addr);
-		break;
-	default:
-		BUG();
-		break;
-	}
-}
-
-static inline unsigned ni_660x_read_register(struct comedi_device *dev,
-					     unsigned chip,
-					     enum ni_660x_register reg)
-{
-	unsigned int addr = GPCT_OFFSET[chip] + registerData[reg].offset;
-
-	switch (registerData[reg].size) {
-	case DATA_2B:
-		return readw(dev->mmio + addr);
-	case DATA_4B:
-		return readl(dev->mmio + addr);
-	default:
-		BUG();
-		break;
-	}
-	return 0;
-}
-
-static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits,
-				   enum ni_gpct_register reg)
-{
-	struct comedi_device *dev = counter->counter_dev->dev;
-	enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg);
-	unsigned chip = counter->chip_index;
-
-	ni_660x_write_register(dev, chip, bits, ni_660x_register);
-}
-
-static unsigned ni_gpct_read_register(struct ni_gpct *counter,
-				      enum ni_gpct_register reg)
-{
-	struct comedi_device *dev = counter->counter_dev->dev;
-	enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg);
-	unsigned chip = counter->chip_index;
-
-	return ni_660x_read_register(dev, chip, ni_660x_register);
-}
-
-static inline struct mite_dma_descriptor_ring *mite_ring(struct ni_660x_private
-							 *priv,
-							 struct ni_gpct
-							 *counter)
-{
-	unsigned chip = counter->chip_index;
-
-	return priv->mite_rings[chip][counter->counter_index];
-}
-
-static inline void ni_660x_set_dma_channel(struct comedi_device *dev,
-					   unsigned mite_channel,
-					   struct ni_gpct *counter)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned chip = counter->chip_index;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
-	devpriv->dma_configuration_soft_copies[chip] &=
-		~dma_select_mask(mite_channel);
-	devpriv->dma_configuration_soft_copies[chip] |=
-		dma_select_bits(mite_channel, counter->counter_index);
-	ni_660x_write_register(dev, chip,
-			       devpriv->dma_configuration_soft_copies[chip] |
-			       dma_reset_bit(mite_channel), NI660X_DMA_CFG);
-	mmiowb();
-	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
-}
-
-static inline void ni_660x_unset_dma_channel(struct comedi_device *dev,
-					     unsigned mite_channel,
-					     struct ni_gpct *counter)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned chip = counter->chip_index;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
-	devpriv->dma_configuration_soft_copies[chip] &=
-	    ~dma_select_mask(mite_channel);
-	devpriv->dma_configuration_soft_copies[chip] |=
-	    dma_select_bits(mite_channel, dma_selection_none);
-	ni_660x_write_register(dev, chip,
-			       devpriv->dma_configuration_soft_copies[chip],
-			       NI660X_DMA_CFG);
-	mmiowb();
-	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
-}
-
-static int ni_660x_request_mite_channel(struct comedi_device *dev,
-					struct ni_gpct *counter,
-					enum comedi_io_direction direction)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned long flags;
-	struct mite_channel *mite_chan;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	BUG_ON(counter->mite_chan);
-	mite_chan = mite_request_channel(devpriv->mite,
-					 mite_ring(devpriv, counter));
-	if (!mite_chan) {
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-		dev_err(dev->class_dev,
-			"failed to reserve mite dma channel for counter\n");
-		return -EBUSY;
-	}
-	mite_chan->dir = direction;
-	ni_tio_set_mite_channel(counter, mite_chan);
-	ni_660x_set_dma_channel(dev, mite_chan->channel, counter);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-	return 0;
-}
-
-static void ni_660x_release_mite_channel(struct comedi_device *dev,
-					 struct ni_gpct *counter)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (counter->mite_chan) {
-		struct mite_channel *mite_chan = counter->mite_chan;
-
-		ni_660x_unset_dma_channel(dev, mite_chan->channel, counter);
-		ni_tio_set_mite_channel(counter, NULL);
-		mite_release_channel(mite_chan);
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-}
-
-static int ni_660x_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-	int retval;
-
-	retval = ni_660x_request_mite_channel(dev, counter, COMEDI_INPUT);
-	if (retval) {
-		dev_err(dev->class_dev,
-			"no dma channel available for use by counter\n");
-		return retval;
-	}
-	ni_tio_acknowledge(counter);
-
-	return ni_tio_cmd(dev, s);
-}
-
-static int ni_660x_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-	int retval;
-
-	retval = ni_tio_cancel(counter);
-	ni_660x_release_mite_channel(dev, counter);
-	return retval;
-}
-
-static void set_tio_counterswap(struct comedi_device *dev, int chip)
-{
-	unsigned bits = 0;
-
-	/*
-	 * See P. 3.5 of the Register-Level Programming manual.
-	 * The CounterSwap bit has to be set on the second chip,
-	 * otherwise it will try to use the same pins as the
-	 * first chip.
-	 */
-	if (chip)
-		bits = CounterSwap;
-
-	ni_660x_write_register(dev, chip, bits, NI660X_CLK_CFG);
-}
-
-static void ni_660x_handle_gpct_interrupt(struct comedi_device *dev,
-					  struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-
-	ni_tio_handle_interrupt(counter, s);
-	comedi_handle_events(dev, s);
-}
-
-static irqreturn_t ni_660x_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct ni_660x_private *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	unsigned i;
-	unsigned long flags;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-	/* lock to avoid race with comedi_poll */
-	spin_lock_irqsave(&devpriv->interrupt_lock, flags);
-	smp_mb();
-	for (i = 0; i < ni_660x_num_counters(dev); ++i) {
-		s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)];
-		ni_660x_handle_gpct_interrupt(dev, s);
-	}
-	spin_unlock_irqrestore(&devpriv->interrupt_lock, flags);
-	return IRQ_HANDLED;
-}
-
-static int ni_660x_input_poll(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	struct ni_gpct *counter = s->private;
-	unsigned long flags;
-
-	/* lock to avoid race with comedi_poll */
-	spin_lock_irqsave(&devpriv->interrupt_lock, flags);
-	mite_sync_input_dma(counter->mite_chan, s);
-	spin_unlock_irqrestore(&devpriv->interrupt_lock, flags);
-	return comedi_buf_read_n_available(s);
-}
-
-static int ni_660x_buf_change(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	struct ni_gpct *counter = s->private;
-	int ret;
-
-	ret = mite_buf_change(mite_ring(devpriv, counter), s);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int ni_660x_allocate_private(struct comedi_device *dev)
-{
-	struct ni_660x_private *devpriv;
-	unsigned i;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	spin_lock_init(&devpriv->mite_channel_lock);
-	spin_lock_init(&devpriv->interrupt_lock);
-	spin_lock_init(&devpriv->soft_reg_copy_lock);
-	for (i = 0; i < NUM_PFI_CHANNELS; ++i)
-		devpriv->pfi_output_selects[i] = pfi_output_select_counter;
-
-	return 0;
-}
-
-static int ni_660x_alloc_mite_rings(struct comedi_device *dev)
-{
-	const struct ni_660x_board *board = dev->board_ptr;
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned i;
-	unsigned j;
-
-	for (i = 0; i < board->n_chips; ++i) {
-		for (j = 0; j < counters_per_chip; ++j) {
-			devpriv->mite_rings[i][j] =
-			    mite_alloc_ring(devpriv->mite);
-			if (!devpriv->mite_rings[i][j])
-				return -ENOMEM;
-		}
-	}
-	return 0;
-}
-
-static void ni_660x_free_mite_rings(struct comedi_device *dev)
-{
-	const struct ni_660x_board *board = dev->board_ptr;
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned i;
-	unsigned j;
-
-	for (i = 0; i < board->n_chips; ++i) {
-		for (j = 0; j < counters_per_chip; ++j)
-			mite_free_ring(devpriv->mite_rings[i][j]);
-	}
-}
-
-static void init_tio_chip(struct comedi_device *dev, int chipset)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned i;
-
-	/*  init dma configuration register */
-	devpriv->dma_configuration_soft_copies[chipset] = 0;
-	for (i = 0; i < MAX_DMA_CHANNEL; ++i) {
-		devpriv->dma_configuration_soft_copies[chipset] |=
-		    dma_select_bits(i, dma_selection_none) & dma_select_mask(i);
-	}
-	ni_660x_write_register(dev, chipset,
-			       devpriv->dma_configuration_soft_copies[chipset],
-			       NI660X_DMA_CFG);
-	for (i = 0; i < NUM_PFI_CHANNELS; ++i)
-		ni_660x_write_register(dev, chipset, 0, IOConfigReg(i));
-}
-
-static int ni_660x_dio_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned base_bitfield_channel = CR_CHAN(insn->chanspec);
-
-	/*  Check if we have to write some bits */
-	if (data[0]) {
-		s->state &= ~(data[0] << base_bitfield_channel);
-		s->state |= (data[0] & data[1]) << base_bitfield_channel;
-		/* Write out the new digital output lines */
-		ni_660x_write_register(dev, 0, s->state, NI660X_DIO32_OUTPUT);
-	}
-	/* on return, data[1] contains the value of the digital
-	 * input and output lines. */
-	data[1] = (ni_660x_read_register(dev, 0, NI660X_DIO32_INPUT) >>
-			base_bitfield_channel);
-
-	return insn->n;
-}
-
-static void ni_660x_select_pfi_output(struct comedi_device *dev,
-				      unsigned pfi_channel,
-				      unsigned output_select)
-{
-	const struct ni_660x_board *board = dev->board_ptr;
-	static const unsigned counter_4_7_first_pfi = 8;
-	static const unsigned counter_4_7_last_pfi = 23;
-	unsigned active_chipset = 0;
-	unsigned idle_chipset = 0;
-	unsigned active_bits;
-	unsigned idle_bits;
-
-	if (board->n_chips > 1) {
-		if (output_select == pfi_output_select_counter &&
-		    pfi_channel >= counter_4_7_first_pfi &&
-		    pfi_channel <= counter_4_7_last_pfi) {
-			active_chipset = 1;
-			idle_chipset = 0;
-		} else {
-			active_chipset = 0;
-			idle_chipset = 1;
-		}
-	}
-
-	if (idle_chipset != active_chipset) {
-		idle_bits =
-		    ni_660x_read_register(dev, idle_chipset,
-					  IOConfigReg(pfi_channel));
-		idle_bits &= ~pfi_output_select_mask(pfi_channel);
-		idle_bits |=
-		    pfi_output_select_bits(pfi_channel,
-					   pfi_output_select_high_Z);
-		ni_660x_write_register(dev, idle_chipset, idle_bits,
-				       IOConfigReg(pfi_channel));
-	}
-
-	active_bits =
-	    ni_660x_read_register(dev, active_chipset,
-				  IOConfigReg(pfi_channel));
-	active_bits &= ~pfi_output_select_mask(pfi_channel);
-	active_bits |= pfi_output_select_bits(pfi_channel, output_select);
-	ni_660x_write_register(dev, active_chipset, active_bits,
-			       IOConfigReg(pfi_channel));
-}
-
-static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan,
-				   unsigned source)
-{
-	struct ni_660x_private *devpriv = dev->private;
-
-	if (source > num_pfi_output_selects)
-		return -EINVAL;
-	if (source == pfi_output_select_high_Z)
-		return -EINVAL;
-	if (chan < min_counter_pfi_chan) {
-		if (source == pfi_output_select_counter)
-			return -EINVAL;
-	} else if (chan > max_dio_pfi_chan) {
-		if (source == pfi_output_select_do)
-			return -EINVAL;
-	}
-
-	devpriv->pfi_output_selects[chan] = source;
-	if (devpriv->pfi_direction_bits & (((uint64_t) 1) << chan))
-		ni_660x_select_pfi_output(dev, chan,
-					  devpriv->pfi_output_selects[chan]);
-	return 0;
-}
-
-static int ni_660x_dio_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct ni_660x_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	uint64_t bit = 1ULL << chan;
-	unsigned int val;
-	int ret;
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIO_OUTPUT:
-		devpriv->pfi_direction_bits |= bit;
-		ni_660x_select_pfi_output(dev, chan,
-					  devpriv->pfi_output_selects[chan]);
-		break;
-
-	case INSN_CONFIG_DIO_INPUT:
-		devpriv->pfi_direction_bits &= ~bit;
-		ni_660x_select_pfi_output(dev, chan, pfi_output_select_high_Z);
-		break;
-
-	case INSN_CONFIG_DIO_QUERY:
-		data[1] = (devpriv->pfi_direction_bits & bit) ? COMEDI_OUTPUT
-							      : COMEDI_INPUT;
-		break;
-
-	case INSN_CONFIG_SET_ROUTING:
-		ret = ni_660x_set_pfi_routing(dev, chan, data[1]);
-		if (ret)
-			return ret;
-		break;
-
-	case INSN_CONFIG_GET_ROUTING:
-		data[1] = devpriv->pfi_output_selects[chan];
-		break;
-
-	case INSN_CONFIG_FILTER:
-		val = ni_660x_read_register(dev, 0, IOConfigReg(chan));
-		val &= ~pfi_input_select_mask(chan);
-		val |= pfi_input_select_bits(chan, data[1]);
-		ni_660x_write_register(dev, 0, val, IOConfigReg(chan));
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int ni_660x_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct ni_660x_board *board = NULL;
-	struct ni_660x_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-	unsigned i;
-	unsigned global_interrupt_config_bits;
-
-	if (context < ARRAY_SIZE(ni_660x_boards))
-		board = &ni_660x_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	ret = ni_660x_allocate_private(dev);
-	if (ret < 0)
-		return ret;
-	devpriv = dev->private;
-
-	devpriv->mite = mite_alloc(pcidev);
-	if (!devpriv->mite)
-		return -ENOMEM;
-
-	ret = mite_setup2(dev, devpriv->mite, true);
-	if (ret < 0)
-		return ret;
-
-	ret = ni_660x_alloc_mite_rings(dev);
-	if (ret < 0)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 2 + NI_660X_MAX_NUM_COUNTERS);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* Old GENERAL-PURPOSE COUNTER/TIME (GPCT) subdevice, no longer used */
-	s->type = COMEDI_SUBD_UNUSED;
-
-	s = &dev->subdevices[NI_660X_DIO_SUBDEV];
-	/* DIGITAL I/O SUBDEVICE */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = NUM_PFI_CHANNELS;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = ni_660x_dio_insn_bits;
-	s->insn_config = ni_660x_dio_insn_config;
-	/*  we use the ioconfig registers to control dio direction, so zero
-	output enables in stc dio control reg */
-	ni_660x_write_register(dev, 0, 0, NI660X_STC_DIO_CONTROL);
-
-	devpriv->counter_dev = ni_gpct_device_construct(dev,
-						     &ni_gpct_write_register,
-						     &ni_gpct_read_register,
-						     ni_gpct_variant_660x,
-						     ni_660x_num_counters
-						     (dev));
-	if (!devpriv->counter_dev)
-		return -ENOMEM;
-	for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) {
-		s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)];
-		if (i < ni_660x_num_counters(dev)) {
-			s->type = COMEDI_SUBD_COUNTER;
-			s->subdev_flags = SDF_READABLE | SDF_WRITABLE |
-					  SDF_LSAMPL | SDF_CMD_READ;
-			s->n_chan = 3;
-			s->maxdata = 0xffffffff;
-			s->insn_read = ni_tio_insn_read;
-			s->insn_write = ni_tio_insn_write;
-			s->insn_config = ni_tio_insn_config;
-			s->do_cmd = &ni_660x_cmd;
-			s->len_chanlist = 1;
-			s->do_cmdtest = ni_tio_cmdtest;
-			s->cancel = &ni_660x_cancel;
-			s->poll = &ni_660x_input_poll;
-			s->async_dma_dir = DMA_BIDIRECTIONAL;
-			s->buf_change = &ni_660x_buf_change;
-			s->private = &devpriv->counter_dev->counters[i];
-
-			devpriv->counter_dev->counters[i].chip_index =
-			    i / counters_per_chip;
-			devpriv->counter_dev->counters[i].counter_index =
-			    i % counters_per_chip;
-		} else {
-			s->type = COMEDI_SUBD_UNUSED;
-		}
-	}
-	for (i = 0; i < board->n_chips; ++i)
-		init_tio_chip(dev, i);
-
-	for (i = 0; i < ni_660x_num_counters(dev); ++i)
-		ni_tio_init_counter(&devpriv->counter_dev->counters[i]);
-
-	for (i = 0; i < NUM_PFI_CHANNELS; ++i) {
-		if (i < min_counter_pfi_chan)
-			ni_660x_set_pfi_routing(dev, i, pfi_output_select_do);
-		else
-			ni_660x_set_pfi_routing(dev, i,
-						pfi_output_select_counter);
-		ni_660x_select_pfi_output(dev, i, pfi_output_select_high_Z);
-	}
-	/* to be safe, set counterswap bits on tio chips after all the counter
-	   outputs have been set to high impedance mode */
-	for (i = 0; i < board->n_chips; ++i)
-		set_tio_counterswap(dev, i);
-
-	ret = request_irq(pcidev->irq, ni_660x_interrupt, IRQF_SHARED,
-			  dev->board_name, dev);
-	if (ret < 0) {
-		dev_warn(dev->class_dev, " irq not available\n");
-		return ret;
-	}
-	dev->irq = pcidev->irq;
-	global_interrupt_config_bits = Global_Int_Enable_Bit;
-	if (board->n_chips > 1)
-		global_interrupt_config_bits |= Cascade_Int_Enable_Bit;
-	ni_660x_write_register(dev, 0, global_interrupt_config_bits,
-			       NI660X_GLOBAL_INT_CFG);
-
-	return 0;
-}
-
-static void ni_660x_detach(struct comedi_device *dev)
-{
-	struct ni_660x_private *devpriv = dev->private;
-
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-	if (devpriv) {
-		if (devpriv->counter_dev)
-			ni_gpct_device_destroy(devpriv->counter_dev);
-		ni_660x_free_mite_rings(dev);
-		mite_detach(devpriv->mite);
-	}
-	if (dev->mmio)
-		iounmap(dev->mmio);
-	comedi_pci_disable(dev);
-}
-
-static struct comedi_driver ni_660x_driver = {
-	.driver_name	= "ni_660x",
-	.module		= THIS_MODULE,
-	.auto_attach	= ni_660x_auto_attach,
-	.detach		= ni_660x_detach,
-};
-
-static int ni_660x_pci_probe(struct pci_dev *dev,
-			     const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &ni_660x_driver, id->driver_data);
-}
-
-static const struct pci_device_id ni_660x_pci_table[] = {
-	{ PCI_VDEVICE(NI, 0x1310), BOARD_PCI6602 },
-	{ PCI_VDEVICE(NI, 0x1360), BOARD_PXI6602 },
-	{ PCI_VDEVICE(NI, 0x2c60), BOARD_PCI6601 },
-	{ PCI_VDEVICE(NI, 0x2cc0), BOARD_PXI6608 },
-	{ PCI_VDEVICE(NI, 0x1e40), BOARD_PXI6624 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ni_660x_pci_table);
-
-static struct pci_driver ni_660x_pci_driver = {
-	.name		= "ni_660x",
-	.id_table	= ni_660x_pci_table,
-	.probe		= ni_660x_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(ni_660x_driver, ni_660x_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
deleted file mode 100644
index f4c580f65a89..000000000000
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/*
-    comedi/drivers/ni_670x.c
-    Hardware driver for NI 670x devices
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_670x
-Description: National Instruments 670x
-Author: Bart Joris <bjoris@advalvas.be>
-Updated: Wed, 11 Dec 2002 18:25:35 -0800
-Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704
-Status: unknown
-
-Commands are not supported.
-*/
-
-/*
-	Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001
-
-	Manuals:
-
-	322110a.pdf	PCI/PXI-6704 User Manual
-	322110b.pdf	PCI/PXI-6703/6704 User Manual
-
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-#include "../comedi_pci.h"
-
-#define AO_VALUE_OFFSET			0x00
-#define	AO_CHAN_OFFSET			0x0c
-#define	AO_STATUS_OFFSET		0x10
-#define AO_CONTROL_OFFSET		0x10
-#define	DIO_PORT0_DIR_OFFSET	0x20
-#define	DIO_PORT0_DATA_OFFSET	0x24
-#define	DIO_PORT1_DIR_OFFSET	0x28
-#define	DIO_PORT1_DATA_OFFSET	0x2c
-#define	MISC_STATUS_OFFSET		0x14
-#define	MISC_CONTROL_OFFSET		0x14
-
-enum ni_670x_boardid {
-	BOARD_PCI6703,
-	BOARD_PXI6704,
-	BOARD_PCI6704,
-};
-
-struct ni_670x_board {
-	const char *name;
-	unsigned short ao_chans;
-};
-
-static const struct ni_670x_board ni_670x_boards[] = {
-	[BOARD_PCI6703] = {
-		.name		= "PCI-6703",
-		.ao_chans	= 16,
-	},
-	[BOARD_PXI6704] = {
-		.name		= "PXI-6704",
-		.ao_chans	= 32,
-	},
-	[BOARD_PCI6704] = {
-		.name		= "PCI-6704",
-		.ao_chans	= 32,
-	},
-};
-
-struct ni_670x_private {
-	int boardtype;
-	int dio;
-};
-
-static int ni_670x_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	/*
-	 * Channel number mapping:
-	 *
-	 * NI 6703/ NI 6704 | NI 6704 Only
-	 * -------------------------------
-	 * vch(0)  :  0     | ich(16) :  1
-	 * vch(1)  :  2     | ich(17) :  3
-	 * ...              | ...
-	 * vch(15) : 30     | ich(31) : 31
-	 */
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		/* First write in channel register which channel to use */
-		writel(((chan & 15) << 1) | ((chan & 16) >> 4),
-		       dev->mmio + AO_CHAN_OFFSET);
-		/* write channel value */
-		writel(val, dev->mmio + AO_VALUE_OFFSET);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int ni_670x_dio_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		writel(s->state, dev->mmio + DIO_PORT0_DATA_OFFSET);
-
-	data[1] = readl(dev->mmio + DIO_PORT0_DATA_OFFSET);
-
-	return insn->n;
-}
-
-static int ni_670x_dio_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	writel(s->io_bits, dev->mmio + DIO_PORT0_DIR_OFFSET);
-
-	return insn->n;
-}
-
-/* ripped from mite.h and mite_setup2() to avoid mite dependency */
-#define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
-#define WENAB		(1 << 7) /* window enable */
-
-static int ni_670x_mite_init(struct pci_dev *pcidev)
-{
-	void __iomem *mite_base;
-	u32 main_phys_addr;
-
-	/* ioremap the MITE registers (BAR 0) temporarily */
-	mite_base = pci_ioremap_bar(pcidev, 0);
-	if (!mite_base)
-		return -ENOMEM;
-
-	/* set data window to main registers (BAR 1) */
-	main_phys_addr = pci_resource_start(pcidev, 1);
-	writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR);
-
-	/* finished with MITE registers */
-	iounmap(mite_base);
-	return 0;
-}
-
-static int ni_670x_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct ni_670x_board *board = NULL;
-	struct ni_670x_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	if (context < ARRAY_SIZE(ni_670x_boards))
-		board = &ni_670x_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = ni_670x_mite_init(pcidev);
-	if (ret)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 1);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = board->ao_chans;
-	s->maxdata = 0xffff;
-	if (s->n_chan == 32) {
-		const struct comedi_lrange **range_table_list;
-
-		range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
-					   GFP_KERNEL);
-		if (!range_table_list)
-			return -ENOMEM;
-		s->range_table_list = range_table_list;
-		for (i = 0; i < 16; i++) {
-			range_table_list[i] = &range_bipolar10;
-			range_table_list[16 + i] = &range_0_20mA;
-		}
-	} else {
-		s->range_table = &range_bipolar10;
-	}
-	s->insn_write = ni_670x_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[1];
-	/* digital i/o subdevice */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = ni_670x_dio_insn_bits;
-	s->insn_config = ni_670x_dio_insn_config;
-
-	/* Config of misc registers */
-	writel(0x10, dev->mmio + MISC_CONTROL_OFFSET);
-	/* Config of ao registers */
-	writel(0x00, dev->mmio + AO_CONTROL_OFFSET);
-
-	return 0;
-}
-
-static void ni_670x_detach(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-
-	comedi_pci_detach(dev);
-	if (dev->n_subdevices) {
-		s = &dev->subdevices[0];
-		if (s)
-			kfree(s->range_table_list);
-	}
-}
-
-static struct comedi_driver ni_670x_driver = {
-	.driver_name	= "ni_670x",
-	.module		= THIS_MODULE,
-	.auto_attach	= ni_670x_auto_attach,
-	.detach		= ni_670x_detach,
-};
-
-static int ni_670x_pci_probe(struct pci_dev *dev,
-			     const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &ni_670x_driver, id->driver_data);
-}
-
-static const struct pci_device_id ni_670x_pci_table[] = {
-	{ PCI_VDEVICE(NI, 0x1290), BOARD_PCI6704 },
-	{ PCI_VDEVICE(NI, 0x1920), BOARD_PXI6704 },
-	{ PCI_VDEVICE(NI, 0x2c90), BOARD_PCI6703 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
-
-static struct pci_driver ni_670x_pci_driver = {
-	.name		= "ni_670x",
-	.id_table	= ni_670x_pci_table,
-	.probe		= ni_670x_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(ni_670x_driver, ni_670x_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
deleted file mode 100644
index 9b444f8c4e33..000000000000
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ /dev/null
@@ -1,796 +0,0 @@
-/*
-    comedi/drivers/ni_at_a2150.c
-    Driver for National Instruments AT-A2150 boards
-    Copyright (C) 2001, 2002 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_at_a2150
-Description: National Instruments AT-A2150
-Author: Frank Mori Hess
-Status: works
-Devices: [National Instruments] AT-A2150C (at_a2150c), AT-2150S (at_a2150s)
-
-If you want to ac couple the board's inputs, use AREF_OTHER.
-
-Configuration options:
-  [0] - I/O port base address
-  [1] - IRQ (optional, required for timed conversions)
-  [2] - DMA (optional, required for timed conversions)
-
-*/
-/*
-Yet another driver for obsolete hardware brought to you by Frank Hess.
-Testing and debugging help provided by Dave Andruczyk.
-
-This driver supports the boards:
-
-AT-A2150C
-AT-A2150S
-
-The only difference is their master clock frequencies.
-
-Options:
-	[0] - base io address
-	[1] - irq
-	[2] - dma channel
-
-References (from ftp://ftp.natinst.com/support/manuals):
-
-	   320360.pdf  AT-A2150 User Manual
-
-TODO:
-
-analog level triggering
-TRIG_WAKE_EOS
-
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-#include "comedi_8254.h"
-
-#define A2150_DMA_BUFFER_SIZE	0xff00	/*  size in bytes of dma buffer */
-
-/* Registers and bits */
-#define CONFIG_REG		0x0
-#define   CHANNEL_BITS(x)		((x) & 0x7)
-#define   CHANNEL_MASK		0x7
-#define   CLOCK_SELECT_BITS(x)		(((x) & 0x3) << 3)
-#define   CLOCK_DIVISOR_BITS(x)		(((x) & 0x3) << 5)
-#define   CLOCK_MASK		(0xf << 3)
-#define   ENABLE0_BIT		0x80	/*  enable (don't internally ground) channels 0 and 1 */
-#define   ENABLE1_BIT		0x100	/*  enable (don't internally ground) channels 2 and 3 */
-#define   AC0_BIT		0x200	/*  ac couple channels 0,1 */
-#define   AC1_BIT		0x400	/*  ac couple channels 2,3 */
-#define   APD_BIT		0x800	/*  analog power down */
-#define   DPD_BIT		0x1000	/*  digital power down */
-#define TRIGGER_REG		0x2	/*  trigger config register */
-#define   POST_TRIGGER_BITS		0x2
-#define   DELAY_TRIGGER_BITS		0x3
-#define   HW_TRIG_EN		0x10	/*  enable hardware trigger */
-#define FIFO_START_REG		0x6	/*  software start aquistion trigger */
-#define FIFO_RESET_REG		0x8	/*  clears fifo + fifo flags */
-#define FIFO_DATA_REG		0xa	/*  read data */
-#define DMA_TC_CLEAR_REG		0xe	/*  clear dma terminal count interrupt */
-#define STATUS_REG		0x12	/*  read only */
-#define   FNE_BIT		0x1	/*  fifo not empty */
-#define   OVFL_BIT		0x8	/*  fifo overflow */
-#define   EDAQ_BIT		0x10	/*  end of acquisition interrupt */
-#define   DCAL_BIT		0x20	/*  offset calibration in progress */
-#define   INTR_BIT		0x40	/*  interrupt has occurred */
-#define   DMA_TC_BIT		0x80	/*  dma terminal count interrupt has occurred */
-#define   ID_BITS(x)	(((x) >> 8) & 0x3)
-#define IRQ_DMA_CNTRL_REG		0x12	/*  write only */
-#define   DMA_CHAN_BITS(x)		((x) & 0x7)	/*  sets dma channel */
-#define   DMA_EN_BIT		0x8	/*  enables dma */
-#define   IRQ_LVL_BITS(x)		(((x) & 0xf) << 4)	/*  sets irq level */
-#define   FIFO_INTR_EN_BIT		0x100	/*  enable fifo interrupts */
-#define   FIFO_INTR_FHF_BIT		0x200	/*  interrupt fifo half full */
-#define   DMA_INTR_EN_BIT		0x800	/*  enable interrupt on dma terminal count */
-#define   DMA_DEM_EN_BIT	0x1000	/*  enables demand mode dma */
-#define I8253_BASE_REG		0x14
-
-struct a2150_board {
-	const char *name;
-	int clock[4];		/*  master clock periods, in nanoseconds */
-	int num_clocks;		/*  number of available master clock speeds */
-	int ai_speed;		/*  maximum conversion rate in nanoseconds */
-};
-
-/* analog input range */
-static const struct comedi_lrange range_a2150 = {
-	1, {
-		BIP_RANGE(2.828)
-	}
-};
-
-/* enum must match board indices */
-enum { a2150_c, a2150_s };
-static const struct a2150_board a2150_boards[] = {
-	{
-	 .name = "at-a2150c",
-	 .clock = {31250, 22676, 20833, 19531},
-	 .num_clocks = 4,
-	 .ai_speed = 19531,
-	 },
-	{
-	 .name = "at-a2150s",
-	 .clock = {62500, 50000, 41667, 0},
-	 .num_clocks = 3,
-	 .ai_speed = 41667,
-	 },
-};
-
-struct a2150_private {
-	struct comedi_isadma *dma;
-	unsigned int count;	/* number of data points left to be taken */
-	int irq_dma_bits;	/*  irq/dma register bits */
-	int config_bits;	/*  config register bits */
-};
-
-/* interrupt service routine */
-static irqreturn_t a2150_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct a2150_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[0];
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned short *buf = desc->virt_addr;
-	unsigned int max_points, num_points, residue, leftover;
-	unsigned short dpnt;
-	int status;
-	int i;
-
-	if (!dev->attached)
-		return IRQ_HANDLED;
-
-	status = inw(dev->iobase + STATUS_REG);
-	if ((status & INTR_BIT) == 0)
-		return IRQ_NONE;
-
-	if (status & OVFL_BIT) {
-		async->events |= COMEDI_CB_ERROR;
-		comedi_handle_events(dev, s);
-	}
-
-	if ((status & DMA_TC_BIT) == 0) {
-		async->events |= COMEDI_CB_ERROR;
-		comedi_handle_events(dev, s);
-		return IRQ_HANDLED;
-	}
-
-	/*
-	 * residue is the number of bytes left to be done on the dma
-	 * transfer.  It should always be zero at this point unless
-	 * the stop_src is set to external triggering.
-	 */
-	residue = comedi_isadma_disable(desc->chan);
-
-	/*  figure out how many points to read */
-	max_points = comedi_bytes_to_samples(s, desc->size);
-	num_points = max_points - comedi_bytes_to_samples(s, residue);
-	if (devpriv->count < num_points && cmd->stop_src == TRIG_COUNT)
-		num_points = devpriv->count;
-
-	/*  figure out how many points will be stored next time */
-	leftover = 0;
-	if (cmd->stop_src == TRIG_NONE) {
-		leftover = comedi_bytes_to_samples(s, desc->size);
-	} else if (devpriv->count > max_points) {
-		leftover = devpriv->count - max_points;
-		if (leftover > max_points)
-			leftover = max_points;
-	}
-	/* there should only be a residue if collection was stopped by having
-	 * the stop_src set to an external trigger, in which case there
-	 * will be no more data
-	 */
-	if (residue)
-		leftover = 0;
-
-	for (i = 0; i < num_points; i++) {
-		/* write data point to comedi buffer */
-		dpnt = buf[i];
-		/*  convert from 2's complement to unsigned coding */
-		dpnt ^= 0x8000;
-		comedi_buf_write_samples(s, &dpnt, 1);
-		if (cmd->stop_src == TRIG_COUNT) {
-			if (--devpriv->count == 0) {	/* end of acquisition */
-				async->events |= COMEDI_CB_EOA;
-				break;
-			}
-		}
-	}
-	/* re-enable dma */
-	if (leftover) {
-		desc->size = comedi_samples_to_bytes(s, leftover);
-		comedi_isadma_program(desc);
-	}
-
-	comedi_handle_events(dev, s);
-
-	/* clear interrupt */
-	outw(0x00, dev->iobase + DMA_TC_CLEAR_REG);
-
-	return IRQ_HANDLED;
-}
-
-static int a2150_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct a2150_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[0];
-
-	/*  disable dma on card */
-	devpriv->irq_dma_bits &= ~DMA_INTR_EN_BIT & ~DMA_EN_BIT;
-	outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG);
-
-	/*  disable computer's dma */
-	comedi_isadma_disable(desc->chan);
-
-	/*  clear fifo and reset triggering circuitry */
-	outw(0, dev->iobase + FIFO_RESET_REG);
-
-	return 0;
-}
-
-/*
- * sets bits in devpriv->clock_bits to nearest approximation of requested
- * period, adjusts requested period to actual timing.
- */
-static int a2150_get_timing(struct comedi_device *dev, unsigned int *period,
-			    unsigned int flags)
-{
-	const struct a2150_board *board = dev->board_ptr;
-	struct a2150_private *devpriv = dev->private;
-	int lub, glb, temp;
-	int lub_divisor_shift, lub_index, glb_divisor_shift, glb_index;
-	int i, j;
-
-	/*  initialize greatest lower and least upper bounds */
-	lub_divisor_shift = 3;
-	lub_index = 0;
-	lub = board->clock[lub_index] * (1 << lub_divisor_shift);
-	glb_divisor_shift = 0;
-	glb_index = board->num_clocks - 1;
-	glb = board->clock[glb_index] * (1 << glb_divisor_shift);
-
-	/*  make sure period is in available range */
-	if (*period < glb)
-		*period = glb;
-	if (*period > lub)
-		*period = lub;
-
-	/*  we can multiply period by 1, 2, 4, or 8, using (1 << i) */
-	for (i = 0; i < 4; i++) {
-		/*  there are a maximum of 4 master clocks */
-		for (j = 0; j < board->num_clocks; j++) {
-			/*  temp is the period in nanosec we are evaluating */
-			temp = board->clock[j] * (1 << i);
-			/*  if it is the best match yet */
-			if (temp < lub && temp >= *period) {
-				lub_divisor_shift = i;
-				lub_index = j;
-				lub = temp;
-			}
-			if (temp > glb && temp <= *period) {
-				glb_divisor_shift = i;
-				glb_index = j;
-				glb = temp;
-			}
-		}
-	}
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		/*  if least upper bound is better approximation */
-		if (lub - *period < *period - glb)
-			*period = lub;
-		else
-			*period = glb;
-		break;
-	case CMDF_ROUND_UP:
-		*period = lub;
-		break;
-	case CMDF_ROUND_DOWN:
-		*period = glb;
-		break;
-	}
-
-	/*  set clock bits for config register appropriately */
-	devpriv->config_bits &= ~CLOCK_MASK;
-	if (*period == lub) {
-		devpriv->config_bits |=
-		    CLOCK_SELECT_BITS(lub_index) |
-		    CLOCK_DIVISOR_BITS(lub_divisor_shift);
-	} else {
-		devpriv->config_bits |=
-		    CLOCK_SELECT_BITS(glb_index) |
-		    CLOCK_DIVISOR_BITS(glb_divisor_shift);
-	}
-
-	return 0;
-}
-
-static int a2150_set_chanlist(struct comedi_device *dev,
-			      unsigned int start_channel,
-			      unsigned int num_channels)
-{
-	struct a2150_private *devpriv = dev->private;
-
-	if (start_channel + num_channels > 4)
-		return -1;
-
-	devpriv->config_bits &= ~CHANNEL_MASK;
-
-	switch (num_channels) {
-	case 1:
-		devpriv->config_bits |= CHANNEL_BITS(0x4 | start_channel);
-		break;
-	case 2:
-		if (start_channel == 0)
-			devpriv->config_bits |= CHANNEL_BITS(0x2);
-		else if (start_channel == 2)
-			devpriv->config_bits |= CHANNEL_BITS(0x3);
-		else
-			return -1;
-		break;
-	case 4:
-		devpriv->config_bits |= CHANNEL_BITS(0x1);
-		break;
-	default:
-		return -1;
-	}
-
-	return 0;
-}
-
-static int a2150_ai_check_chanlist(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_cmd *cmd)
-{
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
-	int i;
-
-	if (cmd->chanlist_len == 2 && (chan0 == 1 || chan0 == 3)) {
-		dev_dbg(dev->class_dev,
-			"length 2 chanlist must be channels 0,1 or channels 2,3\n");
-		return -EINVAL;
-	}
-
-	if (cmd->chanlist_len == 3) {
-		dev_dbg(dev->class_dev,
-			"chanlist must have 1,2 or 4 channels\n");
-		return -EINVAL;
-	}
-
-	for (i = 1; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-
-		if (chan != (chan0 + i)) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must be consecutive channels, counting upwards\n");
-			return -EINVAL;
-		}
-
-		if (chan == 2)
-			aref0 = aref;
-		if (aref != aref0) {
-			dev_dbg(dev->class_dev,
-				"channels 0/1 and 2/3 must have the same analog reference\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int a2150_ai_cmdtest(struct comedi_device *dev,
-			    struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	const struct a2150_board *board = dev->board_ptr;
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_speed);
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		a2150_get_timing(dev, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= a2150_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct a2150_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[0];
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int old_config_bits = devpriv->config_bits;
-	unsigned int trigger_bits;
-
-	if (cmd->flags & CMDF_PRIORITY) {
-		dev_err(dev->class_dev,
-			"dma incompatible with hard real-time interrupt (CMDF_PRIORITY), aborting\n");
-		return -1;
-	}
-	/*  clear fifo and reset triggering circuitry */
-	outw(0, dev->iobase + FIFO_RESET_REG);
-
-	/* setup chanlist */
-	if (a2150_set_chanlist(dev, CR_CHAN(cmd->chanlist[0]),
-			       cmd->chanlist_len) < 0)
-		return -1;
-
-	/*  setup ac/dc coupling */
-	if (CR_AREF(cmd->chanlist[0]) == AREF_OTHER)
-		devpriv->config_bits |= AC0_BIT;
-	else
-		devpriv->config_bits &= ~AC0_BIT;
-	if (CR_AREF(cmd->chanlist[2]) == AREF_OTHER)
-		devpriv->config_bits |= AC1_BIT;
-	else
-		devpriv->config_bits &= ~AC1_BIT;
-
-	/*  setup timing */
-	a2150_get_timing(dev, &cmd->scan_begin_arg, cmd->flags);
-
-	/*  send timing, channel, config bits */
-	outw(devpriv->config_bits, dev->iobase + CONFIG_REG);
-
-	/*  initialize number of samples remaining */
-	devpriv->count = cmd->stop_arg * cmd->chanlist_len;
-
-	comedi_isadma_disable(desc->chan);
-
-	/*  set size of transfer to fill in 1/3 second */
-#define ONE_THIRD_SECOND 333333333
-	desc->size = comedi_bytes_per_sample(s) * cmd->chanlist_len *
-		    ONE_THIRD_SECOND / cmd->scan_begin_arg;
-	if (desc->size > desc->maxsize)
-		desc->size = desc->maxsize;
-	if (desc->size < comedi_bytes_per_sample(s))
-		desc->size = comedi_bytes_per_sample(s);
-	desc->size -= desc->size % comedi_bytes_per_sample(s);
-
-	comedi_isadma_program(desc);
-
-	/* clear dma interrupt before enabling it, to try and get rid of that
-	 * one spurious interrupt that has been happening */
-	outw(0x00, dev->iobase + DMA_TC_CLEAR_REG);
-
-	/*  enable dma on card */
-	devpriv->irq_dma_bits |= DMA_INTR_EN_BIT | DMA_EN_BIT;
-	outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG);
-
-	/*  may need to wait 72 sampling periods if timing was changed */
-	comedi_8254_load(dev->pacer, 2, 72, I8254_MODE0 | I8254_BINARY);
-
-	/*  setup start triggering */
-	trigger_bits = 0;
-	/*  decide if we need to wait 72 periods for valid data */
-	if (cmd->start_src == TRIG_NOW &&
-	    (old_config_bits & CLOCK_MASK) !=
-	    (devpriv->config_bits & CLOCK_MASK)) {
-		/*  set trigger source to delay trigger */
-		trigger_bits |= DELAY_TRIGGER_BITS;
-	} else {
-		/*  otherwise no delay */
-		trigger_bits |= POST_TRIGGER_BITS;
-	}
-	/*  enable external hardware trigger */
-	if (cmd->start_src == TRIG_EXT) {
-		trigger_bits |= HW_TRIG_EN;
-	} else if (cmd->start_src == TRIG_OTHER) {
-		/*  XXX add support for level/slope start trigger using TRIG_OTHER */
-		dev_err(dev->class_dev, "you shouldn't see this?\n");
-	}
-	/*  send trigger config bits */
-	outw(trigger_bits, dev->iobase + TRIGGER_REG);
-
-	/*  start acquisition for soft trigger */
-	if (cmd->start_src == TRIG_NOW)
-		outw(0, dev->iobase + FIFO_START_REG);
-
-	return 0;
-}
-
-static int a2150_ai_eoc(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + STATUS_REG);
-	if (status & FNE_BIT)
-		return 0;
-	return -EBUSY;
-}
-
-static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
-{
-	struct a2150_private *devpriv = dev->private;
-	unsigned int n;
-	int ret;
-
-	/*  clear fifo and reset triggering circuitry */
-	outw(0, dev->iobase + FIFO_RESET_REG);
-
-	/* setup chanlist */
-	if (a2150_set_chanlist(dev, CR_CHAN(insn->chanspec), 1) < 0)
-		return -1;
-
-	/*  set dc coupling */
-	devpriv->config_bits &= ~AC0_BIT;
-	devpriv->config_bits &= ~AC1_BIT;
-
-	/*  send timing, channel, config bits */
-	outw(devpriv->config_bits, dev->iobase + CONFIG_REG);
-
-	/*  disable dma on card */
-	devpriv->irq_dma_bits &= ~DMA_INTR_EN_BIT & ~DMA_EN_BIT;
-	outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG);
-
-	/*  setup start triggering */
-	outw(0, dev->iobase + TRIGGER_REG);
-
-	/*  start acquisition for soft trigger */
-	outw(0, dev->iobase + FIFO_START_REG);
-
-	/*
-	 * there is a 35.6 sample delay for data to get through the
-	 * antialias filter
-	 */
-	for (n = 0; n < 36; n++) {
-		ret = comedi_timeout(dev, s, insn, a2150_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		inw(dev->iobase + FIFO_DATA_REG);
-	}
-
-	/*  read data */
-	for (n = 0; n < insn->n; n++) {
-		ret = comedi_timeout(dev, s, insn, a2150_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[n] = inw(dev->iobase + FIFO_DATA_REG);
-		data[n] ^= 0x8000;
-	}
-
-	/*  clear fifo and reset triggering circuitry */
-	outw(0, dev->iobase + FIFO_RESET_REG);
-
-	return n;
-}
-
-static void a2150_alloc_irq_and_dma(struct comedi_device *dev,
-				    struct comedi_devconfig *it)
-{
-	struct a2150_private *devpriv = dev->private;
-	unsigned int irq_num = it->options[1];
-	unsigned int dma_chan = it->options[2];
-
-	/*
-	 * Only IRQs 15, 14, 12-9, and 7-3 are valid.
-	 * Only DMA channels 7-5 and 3-0 are valid.
-	 */
-	if (irq_num > 15 || dma_chan > 7 ||
-	    !((1 << irq_num) & 0xdef8) || !((1 << dma_chan) & 0xef))
-		return;
-
-	if (request_irq(irq_num, a2150_interrupt, 0, dev->board_name, dev))
-		return;
-
-	/* DMA uses 1 buffer */
-	devpriv->dma = comedi_isadma_alloc(dev, 1, dma_chan, dma_chan,
-					   A2150_DMA_BUFFER_SIZE,
-					   COMEDI_ISADMA_READ);
-	if (!devpriv->dma) {
-		free_irq(irq_num, dev);
-	} else {
-		dev->irq = irq_num;
-		devpriv->irq_dma_bits = IRQ_LVL_BITS(irq_num) |
-					DMA_CHAN_BITS(dma_chan);
-	}
-}
-
-static void a2150_free_dma(struct comedi_device *dev)
-{
-	struct a2150_private *devpriv = dev->private;
-
-	if (devpriv)
-		comedi_isadma_free(devpriv->dma);
-}
-
-static const struct a2150_board *a2150_probe(struct comedi_device *dev)
-{
-	int id = ID_BITS(inw(dev->iobase + STATUS_REG));
-
-	if (id >= ARRAY_SIZE(a2150_boards))
-		return NULL;
-
-	return &a2150_boards[id];
-}
-
-static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct a2150_board *board;
-	struct a2150_private *devpriv;
-	struct comedi_subdevice *s;
-	static const int timeout = 2000;
-	int i;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x1c);
-	if (ret)
-		return ret;
-
-	board = a2150_probe(dev);
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	/* an IRQ and DMA are required to support async commands */
-	a2150_alloc_irq_and_dma(dev, it);
-
-	dev->pacer = comedi_8254_init(dev->iobase + I8253_BASE_REG,
-				      0, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	/* analog input subdevice */
-	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_OTHER;
-	s->n_chan = 4;
-	s->maxdata = 0xffff;
-	s->range_table = &range_a2150;
-	s->insn_read = a2150_ai_rinsn;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->len_chanlist = s->n_chan;
-		s->do_cmd = a2150_ai_cmd;
-		s->do_cmdtest = a2150_ai_cmdtest;
-		s->cancel = a2150_cancel;
-	}
-
-	/*  set card's irq and dma levels */
-	outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG);
-
-	/*  reset and sync adc clock circuitry */
-	outw_p(DPD_BIT | APD_BIT, dev->iobase + CONFIG_REG);
-	outw_p(DPD_BIT, dev->iobase + CONFIG_REG);
-	/*  initialize configuration register */
-	devpriv->config_bits = 0;
-	outw(devpriv->config_bits, dev->iobase + CONFIG_REG);
-	/*  wait until offset calibration is done, then enable analog inputs */
-	for (i = 0; i < timeout; i++) {
-		if ((DCAL_BIT & inw(dev->iobase + STATUS_REG)) == 0)
-			break;
-		udelay(1000);
-	}
-	if (i == timeout) {
-		dev_err(dev->class_dev,
-			"timed out waiting for offset calibration to complete\n");
-		return -ETIME;
-	}
-	devpriv->config_bits |= ENABLE0_BIT | ENABLE1_BIT;
-	outw(devpriv->config_bits, dev->iobase + CONFIG_REG);
-
-	return 0;
-};
-
-static void a2150_detach(struct comedi_device *dev)
-{
-	if (dev->iobase)
-		outw(APD_BIT | DPD_BIT, dev->iobase + CONFIG_REG);
-	a2150_free_dma(dev);
-	comedi_legacy_detach(dev);
-};
-
-static struct comedi_driver ni_at_a2150_driver = {
-	.driver_name	= "ni_at_a2150",
-	.module		= THIS_MODULE,
-	.attach		= a2150_attach,
-	.detach		= a2150_detach,
-};
-module_comedi_driver(ni_at_a2150_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
deleted file mode 100644
index f27aa0e82234..000000000000
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ /dev/null
@@ -1,383 +0,0 @@
-/*
- * ni_at_ao.c
- * Driver for NI AT-AO-6/10 boards
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000,2002 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: ni_at_ao
- * Description: National Instruments AT-AO-6/10
- * Devices: [National Instruments] AT-AO-6 (at-ao-6), AT-AO-10 (at-ao-10)
- * Status: should work
- * Author: David A. Schleef <ds@schleef.org>
- * Updated: Sun Dec 26 12:26:28 EST 2004
- *
- * Configuration options:
- *   [0] - I/O port base address
- *   [1] - IRQ (unused)
- *   [2] - DMA (unused)
- *   [3] - analog output range, set by jumpers on hardware
- *         0 for -10 to 10V bipolar
- *         1 for 0V to 10V unipolar
- */
-
-#include <linux/module.h>
-
-#include "../comedidev.h"
-
-#include "comedi_8254.h"
-
-/*
- * Register map
- *
- * Register-level programming information can be found in NI
- * document 320379.pdf.
- */
-#define ATAO_DIO_REG		0x00
-#define ATAO_CFG2_REG		0x02
-#define ATAO_CFG2_CALLD_NOP	(0 << 14)
-#define ATAO_CFG2_CALLD(x)	((((x) >> 3) + 1) << 14)
-#define ATAO_CFG2_FFRTEN	(1 << 13)
-#define ATAO_CFG2_DACS(x)	(1 << (((x) / 2) + 8))
-#define ATAO_CFG2_LDAC(x)	(1 << (((x) / 2) + 3))
-#define ATAO_CFG2_PROMEN	(1 << 2)
-#define ATAO_CFG2_SCLK		(1 << 1)
-#define ATAO_CFG2_SDATA		(1 << 0)
-#define ATAO_CFG3_REG		0x04
-#define ATAO_CFG3_DMAMODE	(1 << 6)
-#define ATAO_CFG3_CLKOUT	(1 << 5)
-#define ATAO_CFG3_RCLKEN	(1 << 4)
-#define ATAO_CFG3_DOUTEN2	(1 << 3)
-#define ATAO_CFG3_DOUTEN1	(1 << 2)
-#define ATAO_CFG3_EN2_5V	(1 << 1)
-#define ATAO_CFG3_SCANEN	(1 << 0)
-#define ATAO_82C53_BASE		0x06
-#define ATAO_CFG1_REG		0x0a
-#define ATAO_CFG1_EXTINT2EN	(1 << 15)
-#define ATAO_CFG1_EXTINT1EN	(1 << 14)
-#define ATAO_CFG1_CNTINT2EN	(1 << 13)
-#define ATAO_CFG1_CNTINT1EN	(1 << 12)
-#define ATAO_CFG1_TCINTEN	(1 << 11)
-#define ATAO_CFG1_CNT1SRC	(1 << 10)
-#define ATAO_CFG1_CNT2SRC	(1 << 9)
-#define ATAO_CFG1_FIFOEN	(1 << 8)
-#define ATAO_CFG1_GRP2WR	(1 << 7)
-#define ATAO_CFG1_EXTUPDEN	(1 << 6)
-#define ATAO_CFG1_DMARQ		(1 << 5)
-#define ATAO_CFG1_DMAEN		(1 << 4)
-#define ATAO_CFG1_CH(x)		(((x) & 0xf) << 0)
-#define ATAO_STATUS_REG		0x0a
-#define ATAO_STATUS_FH		(1 << 6)
-#define ATAO_STATUS_FE		(1 << 5)
-#define ATAO_STATUS_FF		(1 << 4)
-#define ATAO_STATUS_INT2	(1 << 3)
-#define ATAO_STATUS_INT1	(1 << 2)
-#define ATAO_STATUS_TCINT	(1 << 1)
-#define ATAO_STATUS_PROMOUT	(1 << 0)
-#define ATAO_FIFO_WRITE_REG	0x0c
-#define ATAO_FIFO_CLEAR_REG	0x0c
-#define ATAO_AO_REG(x)		(0x0c + ((x) * 2))
-
-/* registers with _2_ are accessed when GRP2WR is set in CFG1 */
-#define ATAO_2_DMATCCLR_REG	0x00
-#define ATAO_2_INT1CLR_REG	0x02
-#define ATAO_2_INT2CLR_REG	0x04
-#define ATAO_2_RTSISHFT_REG	0x06
-#define ATAO_2_RTSISHFT_RSI	(1 << 0)
-#define ATAO_2_RTSISTRB_REG	0x07
-
-struct atao_board {
-	const char *name;
-	int n_ao_chans;
-};
-
-static const struct atao_board atao_boards[] = {
-	{
-		.name		= "at-ao-6",
-		.n_ao_chans	= 6,
-	}, {
-		.name		= "at-ao-10",
-		.n_ao_chans	= 10,
-	},
-};
-
-struct atao_private {
-	unsigned short cfg1;
-	unsigned short cfg3;
-
-	/* Used for caldac readback */
-	unsigned char caldac[21];
-};
-
-static void atao_select_reg_group(struct comedi_device *dev, int group)
-{
-	struct atao_private *devpriv = dev->private;
-
-	if (group)
-		devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
-	else
-		devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-}
-
-static int atao_ao_insn_write(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	if (chan == 0)
-		atao_select_reg_group(dev, 1);
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		/* the hardware expects two's complement values */
-		outw(comedi_offset_munge(s, val),
-		     dev->iobase + ATAO_AO_REG(chan));
-	}
-	s->readback[chan] = val;
-
-	if (chan == 0)
-		atao_select_reg_group(dev, 0);
-
-	return insn->n;
-}
-
-static int atao_dio_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + ATAO_DIO_REG);
-
-	data[1] = inw(dev->iobase + ATAO_DIO_REG);
-
-	return insn->n;
-}
-
-static int atao_dio_insn_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct atao_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 4)
-		mask = 0x0f;
-	else
-		mask = 0xf0;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	if (s->io_bits & 0x0f)
-		devpriv->cfg3 |= ATAO_CFG3_DOUTEN1;
-	else
-		devpriv->cfg3 &= ~ATAO_CFG3_DOUTEN1;
-	if (s->io_bits & 0xf0)
-		devpriv->cfg3 |= ATAO_CFG3_DOUTEN2;
-	else
-		devpriv->cfg3 &= ~ATAO_CFG3_DOUTEN2;
-
-	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3_REG);
-
-	return insn->n;
-}
-
-/*
- * There are three DAC8800 TrimDACs on the board. These are 8-channel,
- * 8-bit DACs that are used to calibrate the Analog Output channels.
- * The factory default calibration values are stored in the EEPROM.
- * The TrimDACs, and EEPROM addresses, are mapped as:
- *
- *        Channel       EEPROM  Description
- *   -----------------  ------  -----------------------------------
- *    0 - DAC0 Chan 0    0x30   AO Channel 0 Offset
- *    1 - DAC0 Chan 1    0x31   AO Channel 0 Gain
- *    2 - DAC0 Chan 2    0x32   AO Channel 1 Offset
- *    3 - DAC0 Chan 3    0x33   AO Channel 1 Gain
- *    4 - DAC0 Chan 4    0x34   AO Channel 2 Offset
- *    5 - DAC0 Chan 5    0x35   AO Channel 2 Gain
- *    6 - DAC0 Chan 6    0x36   AO Channel 3 Offset
- *    7 - DAC0 Chan 7    0x37   AO Channel 3 Gain
- *    8 - DAC1 Chan 0    0x38   AO Channel 4 Offset
- *    9 - DAC1 Chan 1    0x39   AO Channel 4 Gain
- *   10 - DAC1 Chan 2    0x3a   AO Channel 5 Offset
- *   11 - DAC1 Chan 3    0x3b   AO Channel 5 Gain
- *   12 - DAC1 Chan 4    0x3c   2.5V Offset
- *   13 - DAC1 Chan 5    0x3d   AO Channel 6 Offset (at-ao-10 only)
- *   14 - DAC1 Chan 6    0x3e   AO Channel 6 Gain   (at-ao-10 only)
- *   15 - DAC1 Chan 7    0x3f   AO Channel 7 Offset (at-ao-10 only)
- *   16 - DAC2 Chan 0    0x40   AO Channel 7 Gain   (at-ao-10 only)
- *   17 - DAC2 Chan 1    0x41   AO Channel 8 Offset (at-ao-10 only)
- *   18 - DAC2 Chan 2    0x42   AO Channel 8 Gain   (at-ao-10 only)
- *   19 - DAC2 Chan 3    0x43   AO Channel 9 Offset (at-ao-10 only)
- *   20 - DAC2 Chan 4    0x44   AO Channel 9 Gain   (at-ao-10 only)
- *        DAC2 Chan 5    0x45   Reserved
- *        DAC2 Chan 6    0x46   Reserved
- *        DAC2 Chan 7    0x47   Reserved
- */
-static int atao_calib_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	if (insn->n) {
-		unsigned int val = data[insn->n - 1];
-		unsigned int bitstring = ((chan & 0x7) << 8) | val;
-		unsigned int bits;
-		int bit;
-
-		/* write the channel and last data value to the caldac */
-		/* clock the bitstring to the caldac; MSB -> LSB */
-		for (bit = 1 << 10; bit; bit >>= 1) {
-			bits = (bit & bitstring) ? ATAO_CFG2_SDATA : 0;
-
-			outw(bits, dev->iobase + ATAO_CFG2_REG);
-			outw(bits | ATAO_CFG2_SCLK,
-			     dev->iobase + ATAO_CFG2_REG);
-		}
-
-		/* strobe the caldac to load the value */
-		outw(ATAO_CFG2_CALLD(chan), dev->iobase + ATAO_CFG2_REG);
-		outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static void atao_reset(struct comedi_device *dev)
-{
-	struct atao_private *devpriv = dev->private;
-
-	/* This is the reset sequence described in the manual */
-
-	devpriv->cfg1 = 0;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-
-	/* Put outputs of counter 1 and counter 2 in a high state */
-	comedi_8254_set_mode(dev->pacer, 0, I8254_MODE4 | I8254_BINARY);
-	comedi_8254_set_mode(dev->pacer, 1, I8254_MODE4 | I8254_BINARY);
-	comedi_8254_write(dev->pacer, 0, 0x0003);
-
-	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
-
-	devpriv->cfg3 = 0;
-	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3_REG);
-
-	inw(dev->iobase + ATAO_FIFO_CLEAR_REG);
-
-	atao_select_reg_group(dev, 1);
-	outw(0, dev->iobase + ATAO_2_INT1CLR_REG);
-	outw(0, dev->iobase + ATAO_2_INT2CLR_REG);
-	outw(0, dev->iobase + ATAO_2_DMATCCLR_REG);
-	atao_select_reg_group(dev, 0);
-}
-
-static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct atao_board *board = dev->board_ptr;
-	struct atao_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x20);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	dev->pacer = comedi_8254_init(dev->iobase + ATAO_82C53_BASE,
-				      0, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= board->n_ao_chans;
-	s->maxdata	= 0x0fff;
-	s->range_table	= it->options[3] ? &range_unipolar10 : &range_bipolar10;
-	s->insn_write	= atao_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= atao_dio_insn_bits;
-	s->insn_config	= atao_dio_insn_config;
-
-	/* caldac subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_CALIB;
-	s->subdev_flags	= SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan	= (board->n_ao_chans * 2) + 1;
-	s->maxdata	= 0xff;
-	s->insn_write	= atao_calib_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* EEPROM subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_UNUSED;
-
-	atao_reset(dev);
-
-	return 0;
-}
-
-static struct comedi_driver ni_at_ao_driver = {
-	.driver_name	= "ni_at_ao",
-	.module		= THIS_MODULE,
-	.attach		= atao_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &atao_boards[0].name,
-	.offset		= sizeof(struct atao_board),
-	.num_names	= ARRAY_SIZE(atao_boards),
-};
-module_comedi_driver(ni_at_ao_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for NI AT-AO-6/10 boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_atmio.c b/drivers/staging/comedi/drivers/ni_atmio.c
deleted file mode 100644
index 95435b81aa55..000000000000
--- a/drivers/staging/comedi/drivers/ni_atmio.c
+++ /dev/null
@@ -1,375 +0,0 @@
-/*
-    comedi/drivers/ni_atmio.c
-    Hardware driver for NI AT-MIO E series cards
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_atmio
-Description: National Instruments AT-MIO-E series
-Author: ds
-Devices: [National Instruments] AT-MIO-16E-1 (ni_atmio),
-  AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-64E-3,
-  AT-MIO-16XE-50, AT-MIO-16XE-10, AT-AI-16XE-10
-Status: works
-Updated: Thu May  1 20:03:02 CDT 2003
-
-The driver has 2.6 kernel isapnp support, and
-will automatically probe for a supported board if the
-I/O base is left unspecified with comedi_config.
-However, many of
-the isapnp id numbers are unknown.  If your board is not
-recognized, please send the output of 'cat /proc/isapnp'
-(you may need to modprobe the isa-pnp module for
-/proc/isapnp to exist) so the
-id numbers for your board can be added to the driver.
-
-Otherwise, you can use the isapnptools package to configure
-your board.  Use isapnp to
-configure the I/O base and IRQ for the board, and then pass
-the same values as
-parameters in comedi_config.  A sample isapnp.conf file is included
-in the etc/ directory of Comedilib.
-
-Comedilib includes a utility to autocalibrate these boards.  The
-boards seem to boot into a state where the all calibration DACs
-are at one extreme of their range, thus the default calibration
-is terrible.  Calibration at boot is strongly encouraged.
-
-To use the extended digital I/O on some of the boards, enable the
-8255 driver when configuring the Comedi source tree.
-
-External triggering is supported for some events.  The channel index
-(scan_begin_arg, etc.) maps to PFI0 - PFI9.
-
-Some of the more esoteric triggering possibilities of these boards
-are not supported.
-*/
-/*
-	The real guts of the driver is in ni_mio_common.c, which is included
-	both here and in ni_pcimio.c
-
-	Interrupt support added by Truxton Fulton <trux@truxton.com>
-
-	References for specifications:
-
-	   340747b.pdf  Register Level Programmer Manual (obsolete)
-	   340747c.pdf  Register Level Programmer Manual (new)
-	   DAQ-STC reference manual
-
-	Other possibly relevant info:
-
-	   320517c.pdf  User manual (obsolete)
-	   320517f.pdf  User manual (new)
-	   320889a.pdf  delete
-	   320906c.pdf  maximum signal ratings
-	   321066a.pdf  about 16x
-	   321791a.pdf  discontinuation of at-mio-16e-10 rev. c
-	   321808a.pdf  about at-mio-16e-10 rev P
-	   321837a.pdf  discontinuation of at-mio-16de-10 rev d
-	   321838a.pdf  about at-mio-16de-10 rev N
-
-	ISSUES:
-
-	need to deal with external reference for DAC, and other DAC
-	properties in board properties
-
-	deal with at-mio-16de-10 revision D to N changes, etc.
-
-*/
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-#include <linux/isapnp.h>
-
-#include "ni_stc.h"
-#include "8255.h"
-
-/*
- *  AT specific setup
- */
-
-static const struct ni_board_struct ni_boards[] = {
-	{
-		.name		= "at-mio-16e-1",
-		.device_id	= 44,
-		.isapnp_id	= 0x0000,	/* XXX unknown */
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 8192,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { mb88341 },
-	}, {
-		.name		= "at-mio-16e-2",
-		.device_id	= 25,
-		.isapnp_id	= 0x1900,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 2048,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 2000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { mb88341 },
-	}, {
-		.name		= "at-mio-16e-10",
-		.device_id	= 36,
-		.isapnp_id	= 0x2400,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 10000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 10000,
-		.caldac		= { ad8804_debug },
-	}, {
-		.name		= "at-mio-16de-10",
-		.device_id	= 37,
-		.isapnp_id	= 0x2500,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 10000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 10000,
-		.caldac		= { ad8804_debug },
-		.has_8255	= 1,
-	}, {
-		.name		= "at-mio-64e-3",
-		.device_id	= 38,
-		.isapnp_id	= 0x2600,
-		.n_adchan	= 64,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 2048,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 2000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { ad8804_debug },
-	}, {
-		.name		= "at-mio-16xe-50",
-		.device_id	= 39,
-		.isapnp_id	= 0x2700,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_8,
-		.ai_speed	= 50000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 50000,
-		.caldac		= { dac8800, dac8043 },
-	}, {
-		.name		= "at-mio-16xe-10",
-		.device_id	= 50,
-		.isapnp_id	= 0x0000,	/* XXX unknown */
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	}, {
-		.name		= "at-ai-16xe-10",
-		.device_id	= 51,
-		.isapnp_id	= 0x0000,	/* XXX unknown */
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,	/* unknown */
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	},
-};
-
-static const int ni_irqpin[] = {
-	-1, -1, -1, 0, 1, 2, -1, 3, -1, -1, 4, 5, 6, -1, -1, 7
-};
-
-#include "ni_mio_common.c"
-
-static struct pnp_device_id device_ids[] = {
-	{.id = "NIC1900", .driver_data = 0},
-	{.id = "NIC2400", .driver_data = 0},
-	{.id = "NIC2500", .driver_data = 0},
-	{.id = "NIC2600", .driver_data = 0},
-	{.id = "NIC2700", .driver_data = 0},
-	{.id = ""}
-};
-
-MODULE_DEVICE_TABLE(pnp, device_ids);
-
-static int ni_isapnp_find_board(struct pnp_dev **dev)
-{
-	struct pnp_dev *isapnp_dev = NULL;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
-		isapnp_dev = pnp_find_dev(NULL,
-					  ISAPNP_VENDOR('N', 'I', 'C'),
-					  ISAPNP_FUNCTION(ni_boards[i].
-							  isapnp_id), NULL);
-
-		if (!isapnp_dev || !isapnp_dev->card)
-			continue;
-
-		if (pnp_device_attach(isapnp_dev) < 0)
-			continue;
-
-		if (pnp_activate_dev(isapnp_dev) < 0) {
-			pnp_device_detach(isapnp_dev);
-			return -EAGAIN;
-		}
-
-		if (!pnp_port_valid(isapnp_dev, 0) ||
-		    !pnp_irq_valid(isapnp_dev, 0)) {
-			pnp_device_detach(isapnp_dev);
-			return -ENOMEM;
-		}
-		break;
-	}
-	if (i == ARRAY_SIZE(ni_boards))
-		return -ENODEV;
-	*dev = isapnp_dev;
-	return 0;
-}
-
-static const struct ni_board_struct *ni_atmio_probe(struct comedi_device *dev)
-{
-	int device_id = ni_read_eeprom(dev, 511);
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
-		const struct ni_board_struct *board = &ni_boards[i];
-
-		if (board->device_id == device_id)
-			return board;
-	}
-	if (device_id == 255)
-		dev_err(dev->class_dev, "can't find board\n");
-	 else if (device_id == 0)
-		dev_err(dev->class_dev,
-			"EEPROM read error (?) or device not found\n");
-	 else
-		dev_err(dev->class_dev,
-			"unknown device ID %d -- contact author\n", device_id);
-
-	return NULL;
-}
-
-static int ni_atmio_attach(struct comedi_device *dev,
-			   struct comedi_devconfig *it)
-{
-	const struct ni_board_struct *board;
-	struct pnp_dev *isapnp_dev;
-	int ret;
-	unsigned long iobase;
-	unsigned int irq;
-
-	ret = ni_alloc_private(dev);
-	if (ret)
-		return ret;
-
-	iobase = it->options[0];
-	irq = it->options[1];
-	isapnp_dev = NULL;
-	if (iobase == 0) {
-		ret = ni_isapnp_find_board(&isapnp_dev);
-		if (ret < 0)
-			return ret;
-
-		iobase = pnp_port_start(isapnp_dev, 0);
-		irq = pnp_irq(isapnp_dev, 0);
-		comedi_set_hw_dev(dev, &isapnp_dev->dev);
-	}
-
-	ret = comedi_request_region(dev, iobase, 0x20);
-	if (ret)
-		return ret;
-
-	board = ni_atmio_probe(dev);
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	/* irq stuff */
-
-	if (irq != 0) {
-		if (irq > 15 || ni_irqpin[irq] == -1)
-			return -EINVAL;
-		ret = request_irq(irq, ni_E_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret < 0)
-			return -EINVAL;
-		dev->irq = irq;
-	}
-
-	/* generic E series stuff in ni_mio_common.c */
-
-	ret = ni_E_init(dev, ni_irqpin[dev->irq], 0);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static void ni_atmio_detach(struct comedi_device *dev)
-{
-	struct pnp_dev *isapnp_dev;
-
-	mio_common_detach(dev);
-	comedi_legacy_detach(dev);
-
-	isapnp_dev = dev->hw_dev ? to_pnp_dev(dev->hw_dev) : NULL;
-	if (isapnp_dev)
-		pnp_device_detach(isapnp_dev);
-}
-
-static struct comedi_driver ni_atmio_driver = {
-	.driver_name	= "ni_atmio",
-	.module		= THIS_MODULE,
-	.attach		= ni_atmio_attach,
-	.detach		= ni_atmio_detach,
-};
-module_comedi_driver(ni_atmio_driver);
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
deleted file mode 100644
index c3eb54622bc3..000000000000
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ /dev/null
@@ -1,760 +0,0 @@
-/*
-   comedi/drivers/ni_atmio16d.c
-   Hardware driver for National Instruments AT-MIO16D board
-   Copyright (C) 2000 Chris R. Baugher <baugher@enteract.com>
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
- */
-/*
-Driver: ni_atmio16d
-Description: National Instruments AT-MIO-16D
-Author: Chris R. Baugher <baugher@enteract.com>
-Status: unknown
-Devices: [National Instruments] AT-MIO-16 (atmio16), AT-MIO-16D (atmio16d)
-*/
-/*
- * I must give credit here to Michal Dobes <dobes@tesnet.cz> who
- * wrote the driver for Advantec's pcl812 boards. I used the interrupt
- * handling code from his driver as an example for this one.
- *
- * Chris Baugher
- * 5/1/2000
- *
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-#include "8255.h"
-
-/* Configuration and Status Registers */
-#define COM_REG_1	0x00	/* wo 16 */
-#define STAT_REG	0x00	/* ro 16 */
-#define COM_REG_2	0x02	/* wo 16 */
-/* Event Strobe Registers */
-#define START_CONVERT_REG	0x08	/* wo 16 */
-#define START_DAQ_REG		0x0A	/* wo 16 */
-#define AD_CLEAR_REG		0x0C	/* wo 16 */
-#define EXT_STROBE_REG		0x0E	/* wo 16 */
-/* Analog Output Registers */
-#define DAC0_REG		0x10	/* wo 16 */
-#define DAC1_REG		0x12	/* wo 16 */
-#define INT2CLR_REG		0x14	/* wo 16 */
-/* Analog Input Registers */
-#define MUX_CNTR_REG		0x04	/* wo 16 */
-#define MUX_GAIN_REG		0x06	/* wo 16 */
-#define AD_FIFO_REG		0x16	/* ro 16 */
-#define DMA_TC_INT_CLR_REG	0x16	/* wo 16 */
-/* AM9513A Counter/Timer Registers */
-#define AM9513A_DATA_REG	0x18	/* rw 16 */
-#define AM9513A_COM_REG		0x1A	/* wo 16 */
-#define AM9513A_STAT_REG	0x1A	/* ro 16 */
-/* MIO-16 Digital I/O Registers */
-#define MIO_16_DIG_IN_REG	0x1C	/* ro 16 */
-#define MIO_16_DIG_OUT_REG	0x1C	/* wo 16 */
-/* RTSI Switch Registers */
-#define RTSI_SW_SHIFT_REG	0x1E	/* wo 8 */
-#define RTSI_SW_STROBE_REG	0x1F	/* wo 8 */
-/* DIO-24 Registers */
-#define DIO_24_PORTA_REG	0x00	/* rw 8 */
-#define DIO_24_PORTB_REG	0x01	/* rw 8 */
-#define DIO_24_PORTC_REG	0x02	/* rw 8 */
-#define DIO_24_CNFG_REG		0x03	/* wo 8 */
-
-/* Command Register bits */
-#define COMREG1_2SCADC		0x0001
-#define COMREG1_1632CNT		0x0002
-#define COMREG1_SCANEN		0x0008
-#define COMREG1_DAQEN		0x0010
-#define COMREG1_DMAEN		0x0020
-#define COMREG1_CONVINTEN	0x0080
-#define COMREG2_SCN2		0x0010
-#define COMREG2_INTEN		0x0080
-#define COMREG2_DOUTEN0		0x0100
-#define COMREG2_DOUTEN1		0x0200
-/* Status Register bits */
-#define STAT_AD_OVERRUN		0x0100
-#define STAT_AD_OVERFLOW	0x0200
-#define STAT_AD_DAQPROG		0x0800
-#define STAT_AD_CONVAVAIL	0x2000
-#define STAT_AD_DAQSTOPINT	0x4000
-/* AM9513A Counter/Timer defines */
-#define CLOCK_1_MHZ		0x8B25
-#define CLOCK_100_KHZ	0x8C25
-#define CLOCK_10_KHZ	0x8D25
-#define CLOCK_1_KHZ		0x8E25
-#define CLOCK_100_HZ	0x8F25
-
-struct atmio16_board_t {
-	const char *name;
-	int has_8255;
-};
-
-/* range structs */
-static const struct comedi_lrange range_atmio16d_ai_10_bipolar = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.02)
-	}
-};
-
-static const struct comedi_lrange range_atmio16d_ai_5_bipolar = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_atmio16d_ai_unipolar = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.02)
-	}
-};
-
-/* private data struct */
-struct atmio16d_private {
-	enum { adc_diff, adc_singleended } adc_mux;
-	enum { adc_bipolar10, adc_bipolar5, adc_unipolar10 } adc_range;
-	enum { adc_2comp, adc_straight } adc_coding;
-	enum { dac_bipolar, dac_unipolar } dac0_range, dac1_range;
-	enum { dac_internal, dac_external } dac0_reference, dac1_reference;
-	enum { dac_2comp, dac_straight } dac0_coding, dac1_coding;
-	const struct comedi_lrange *ao_range_type_list[2];
-	unsigned int com_reg_1_state; /* current state of command register 1 */
-	unsigned int com_reg_2_state; /* current state of command register 2 */
-};
-
-static void reset_counters(struct comedi_device *dev)
-{
-	/* Counter 2 */
-	outw(0xFFC2, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF02, dev->iobase + AM9513A_COM_REG);
-	outw(0x4, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF0A, dev->iobase + AM9513A_COM_REG);
-	outw(0x3, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF42, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF42, dev->iobase + AM9513A_COM_REG);
-	/* Counter 3 */
-	outw(0xFFC4, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF03, dev->iobase + AM9513A_COM_REG);
-	outw(0x4, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF0B, dev->iobase + AM9513A_COM_REG);
-	outw(0x3, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF44, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF44, dev->iobase + AM9513A_COM_REG);
-	/* Counter 4 */
-	outw(0xFFC8, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF04, dev->iobase + AM9513A_COM_REG);
-	outw(0x4, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF0C, dev->iobase + AM9513A_COM_REG);
-	outw(0x3, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF48, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF48, dev->iobase + AM9513A_COM_REG);
-	/* Counter 5 */
-	outw(0xFFD0, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF05, dev->iobase + AM9513A_COM_REG);
-	outw(0x4, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF0D, dev->iobase + AM9513A_COM_REG);
-	outw(0x3, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF50, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF50, dev->iobase + AM9513A_COM_REG);
-
-	outw(0, dev->iobase + AD_CLEAR_REG);
-}
-
-static void reset_atmio16d(struct comedi_device *dev)
-{
-	struct atmio16d_private *devpriv = dev->private;
-	int i;
-
-	/* now we need to initialize the board */
-	outw(0, dev->iobase + COM_REG_1);
-	outw(0, dev->iobase + COM_REG_2);
-	outw(0, dev->iobase + MUX_GAIN_REG);
-	/* init AM9513A timer */
-	outw(0xFFFF, dev->iobase + AM9513A_COM_REG);
-	outw(0xFFEF, dev->iobase + AM9513A_COM_REG);
-	outw(0xFF17, dev->iobase + AM9513A_COM_REG);
-	outw(0xF000, dev->iobase + AM9513A_DATA_REG);
-	for (i = 1; i <= 5; ++i) {
-		outw(0xFF00 + i, dev->iobase + AM9513A_COM_REG);
-		outw(0x0004, dev->iobase + AM9513A_DATA_REG);
-		outw(0xFF08 + i, dev->iobase + AM9513A_COM_REG);
-		outw(0x3, dev->iobase + AM9513A_DATA_REG);
-	}
-	outw(0xFF5F, dev->iobase + AM9513A_COM_REG);
-	/* timer init done */
-	outw(0, dev->iobase + AD_CLEAR_REG);
-	outw(0, dev->iobase + INT2CLR_REG);
-	/* select straight binary mode for Analog Input */
-	devpriv->com_reg_1_state |= 1;
-	outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
-	devpriv->adc_coding = adc_straight;
-	/* zero the analog outputs */
-	outw(2048, dev->iobase + DAC0_REG);
-	outw(2048, dev->iobase + DAC1_REG);
-}
-
-static irqreturn_t atmio16d_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned short val;
-
-	val = inw(dev->iobase + AD_FIFO_REG);
-	comedi_buf_write_samples(s, &val, 1);
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static int atmio16d_ai_cmdtest(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_FOLLOW | TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW) {
-		/* internal trigger */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	} else {
-#if 0
-		/* external trigger */
-		/* should be level/edge, hi/lo specification here */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-#endif
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
-#if 0
-	err |= comedi_check_trigger_arg_max(&cmd->convert_arg, SLOWEST_TIMER);
-#endif
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	return 0;
-}
-
-static int atmio16d_ai_cmd(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct atmio16d_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int timer, base_clock;
-	unsigned int sample_count, tmp, chan, gain;
-	int i;
-
-	/* This is slowly becoming a working command interface. *
-	 * It is still uber-experimental */
-
-	reset_counters(dev);
-
-	/* check if scanning multiple channels */
-	if (cmd->chanlist_len < 2) {
-		devpriv->com_reg_1_state &= ~COMREG1_SCANEN;
-		outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
-	} else {
-		devpriv->com_reg_1_state |= COMREG1_SCANEN;
-		devpriv->com_reg_2_state |= COMREG2_SCN2;
-		outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
-		outw(devpriv->com_reg_2_state, dev->iobase + COM_REG_2);
-	}
-
-	/* Setup the Mux-Gain Counter */
-	for (i = 0; i < cmd->chanlist_len; ++i) {
-		chan = CR_CHAN(cmd->chanlist[i]);
-		gain = CR_RANGE(cmd->chanlist[i]);
-		outw(i, dev->iobase + MUX_CNTR_REG);
-		tmp = chan | (gain << 6);
-		if (i == cmd->scan_end_arg - 1)
-			tmp |= 0x0010;	/* set LASTONE bit */
-		outw(tmp, dev->iobase + MUX_GAIN_REG);
-	}
-
-	/* Now program the sample interval timer */
-	/* Figure out which clock to use then get an
-	 * appropriate timer value */
-	if (cmd->convert_arg < 65536000) {
-		base_clock = CLOCK_1_MHZ;
-		timer = cmd->convert_arg / 1000;
-	} else if (cmd->convert_arg < 655360000) {
-		base_clock = CLOCK_100_KHZ;
-		timer = cmd->convert_arg / 10000;
-	} else /* cmd->convert_arg < 6553600000 */ {
-		base_clock = CLOCK_10_KHZ;
-		timer = cmd->convert_arg / 100000;
-	}
-	outw(0xFF03, dev->iobase + AM9513A_COM_REG);
-	outw(base_clock, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF0B, dev->iobase + AM9513A_COM_REG);
-	outw(0x2, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF44, dev->iobase + AM9513A_COM_REG);
-	outw(0xFFF3, dev->iobase + AM9513A_COM_REG);
-	outw(timer, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF24, dev->iobase + AM9513A_COM_REG);
-
-	/* Now figure out how many samples to get */
-	/* and program the sample counter */
-	sample_count = cmd->stop_arg * cmd->scan_end_arg;
-	outw(0xFF04, dev->iobase + AM9513A_COM_REG);
-	outw(0x1025, dev->iobase + AM9513A_DATA_REG);
-	outw(0xFF0C, dev->iobase + AM9513A_COM_REG);
-	if (sample_count < 65536) {
-		/* use only Counter 4 */
-		outw(sample_count, dev->iobase + AM9513A_DATA_REG);
-		outw(0xFF48, dev->iobase + AM9513A_COM_REG);
-		outw(0xFFF4, dev->iobase + AM9513A_COM_REG);
-		outw(0xFF28, dev->iobase + AM9513A_COM_REG);
-		devpriv->com_reg_1_state &= ~COMREG1_1632CNT;
-		outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
-	} else {
-		/* Counter 4 and 5 are needed */
-
-		tmp = sample_count & 0xFFFF;
-		if (tmp)
-			outw(tmp - 1, dev->iobase + AM9513A_DATA_REG);
-		else
-			outw(0xFFFF, dev->iobase + AM9513A_DATA_REG);
-
-		outw(0xFF48, dev->iobase + AM9513A_COM_REG);
-		outw(0, dev->iobase + AM9513A_DATA_REG);
-		outw(0xFF28, dev->iobase + AM9513A_COM_REG);
-		outw(0xFF05, dev->iobase + AM9513A_COM_REG);
-		outw(0x25, dev->iobase + AM9513A_DATA_REG);
-		outw(0xFF0D, dev->iobase + AM9513A_COM_REG);
-		tmp = sample_count & 0xFFFF;
-		if ((tmp == 0) || (tmp == 1)) {
-			outw((sample_count >> 16) & 0xFFFF,
-			     dev->iobase + AM9513A_DATA_REG);
-		} else {
-			outw(((sample_count >> 16) & 0xFFFF) + 1,
-			     dev->iobase + AM9513A_DATA_REG);
-		}
-		outw(0xFF70, dev->iobase + AM9513A_COM_REG);
-		devpriv->com_reg_1_state |= COMREG1_1632CNT;
-		outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
-	}
-
-	/* Program the scan interval timer ONLY IF SCANNING IS ENABLED */
-	/* Figure out which clock to use then get an
-	 * appropriate timer value */
-	if (cmd->chanlist_len > 1) {
-		if (cmd->scan_begin_arg < 65536000) {
-			base_clock = CLOCK_1_MHZ;
-			timer = cmd->scan_begin_arg / 1000;
-		} else if (cmd->scan_begin_arg < 655360000) {
-			base_clock = CLOCK_100_KHZ;
-			timer = cmd->scan_begin_arg / 10000;
-		} else /* cmd->scan_begin_arg < 6553600000 */ {
-			base_clock = CLOCK_10_KHZ;
-			timer = cmd->scan_begin_arg / 100000;
-		}
-		outw(0xFF02, dev->iobase + AM9513A_COM_REG);
-		outw(base_clock, dev->iobase + AM9513A_DATA_REG);
-		outw(0xFF0A, dev->iobase + AM9513A_COM_REG);
-		outw(0x2, dev->iobase + AM9513A_DATA_REG);
-		outw(0xFF42, dev->iobase + AM9513A_COM_REG);
-		outw(0xFFF2, dev->iobase + AM9513A_COM_REG);
-		outw(timer, dev->iobase + AM9513A_DATA_REG);
-		outw(0xFF22, dev->iobase + AM9513A_COM_REG);
-	}
-
-	/* Clear the A/D FIFO and reset the MUX counter */
-	outw(0, dev->iobase + AD_CLEAR_REG);
-	outw(0, dev->iobase + MUX_CNTR_REG);
-	outw(0, dev->iobase + INT2CLR_REG);
-	/* enable this acquisition operation */
-	devpriv->com_reg_1_state |= COMREG1_DAQEN;
-	outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
-	/* enable interrupts for conversion completion */
-	devpriv->com_reg_1_state |= COMREG1_CONVINTEN;
-	devpriv->com_reg_2_state |= COMREG2_INTEN;
-	outw(devpriv->com_reg_1_state, dev->iobase + COM_REG_1);
-	outw(devpriv->com_reg_2_state, dev->iobase + COM_REG_2);
-	/* apply a trigger. this starts the counters! */
-	outw(0, dev->iobase + START_DAQ_REG);
-
-	return 0;
-}
-
-/* This will cancel a running acquisition operation */
-static int atmio16d_ai_cancel(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	reset_atmio16d(dev);
-
-	return 0;
-}
-
-static int atmio16d_ai_eoc(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + STAT_REG);
-	if (status & STAT_AD_CONVAVAIL)
-		return 0;
-	if (status & STAT_AD_OVERFLOW) {
-		outw(0, dev->iobase + AD_CLEAR_REG);
-		return -EOVERFLOW;
-	}
-	return -EBUSY;
-}
-
-static int atmio16d_ai_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	struct atmio16d_private *devpriv = dev->private;
-	int i;
-	int chan;
-	int gain;
-	int ret;
-
-	chan = CR_CHAN(insn->chanspec);
-	gain = CR_RANGE(insn->chanspec);
-
-	/* reset the Analog input circuitry */
-	/* outw( 0, dev->iobase+AD_CLEAR_REG ); */
-	/* reset the Analog Input MUX Counter to 0 */
-	/* outw( 0, dev->iobase+MUX_CNTR_REG ); */
-
-	/* set the Input MUX gain */
-	outw(chan | (gain << 6), dev->iobase + MUX_GAIN_REG);
-
-	for (i = 0; i < insn->n; i++) {
-		/* start the conversion */
-		outw(0, dev->iobase + START_CONVERT_REG);
-
-		/* wait for it to finish */
-		ret = comedi_timeout(dev, s, insn, atmio16d_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* read the data now */
-		data[i] = inw(dev->iobase + AD_FIFO_REG);
-		/* change to two's complement if need be */
-		if (devpriv->adc_coding == adc_2comp)
-			data[i] ^= 0x800;
-	}
-
-	return i;
-}
-
-static int atmio16d_ao_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct atmio16d_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int reg = (chan) ? DAC1_REG : DAC0_REG;
-	bool munge = false;
-	int i;
-
-	if (chan == 0 && devpriv->dac0_coding == dac_2comp)
-		munge = true;
-	if (chan == 1 && devpriv->dac1_coding == dac_2comp)
-		munge = true;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		if (munge)
-			val ^= 0x800;
-
-		outw(val, dev->iobase + reg);
-	}
-
-	return insn->n;
-}
-
-static int atmio16d_dio_insn_bits(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + MIO_16_DIG_OUT_REG);
-
-	data[1] = inw(dev->iobase + MIO_16_DIG_IN_REG);
-
-	return insn->n;
-}
-
-static int atmio16d_dio_insn_config(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct atmio16d_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 4)
-		mask = 0x0f;
-	else
-		mask = 0xf0;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	devpriv->com_reg_2_state &= ~(COMREG2_DOUTEN0 | COMREG2_DOUTEN1);
-	if (s->io_bits & 0x0f)
-		devpriv->com_reg_2_state |= COMREG2_DOUTEN0;
-	if (s->io_bits & 0xf0)
-		devpriv->com_reg_2_state |= COMREG2_DOUTEN1;
-	outw(devpriv->com_reg_2_state, dev->iobase + COM_REG_2);
-
-	return insn->n;
-}
-
-/*
-   options[0] - I/O port
-   options[1] - MIO irq
-		0 == no irq
-		N == irq N {3,4,5,6,7,9,10,11,12,14,15}
-   options[2] - DIO irq
-		0 == no irq
-		N == irq N {3,4,5,6,7,9}
-   options[3] - DMA1 channel
-		0 == no DMA
-		N == DMA N {5,6,7}
-   options[4] - DMA2 channel
-		0 == no DMA
-		N == DMA N {5,6,7}
-
-   options[5] - a/d mux
-	0=differential, 1=single
-   options[6] - a/d range
-	0=bipolar10, 1=bipolar5, 2=unipolar10
-
-   options[7] - dac0 range
-	0=bipolar, 1=unipolar
-   options[8] - dac0 reference
-	0=internal, 1=external
-   options[9] - dac0 coding
-	0=2's comp, 1=straight binary
-
-   options[10] - dac1 range
-   options[11] - dac1 reference
-   options[12] - dac1 coding
- */
-
-static int atmio16d_attach(struct comedi_device *dev,
-			   struct comedi_devconfig *it)
-{
-	const struct atmio16_board_t *board = dev->board_ptr;
-	struct atmio16d_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x20);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	/* reset the atmio16d hardware */
-	reset_atmio16d(dev);
-
-	if (it->options[1]) {
-		ret = request_irq(it->options[1], atmio16d_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	/* set device options */
-	devpriv->adc_mux = it->options[5];
-	devpriv->adc_range = it->options[6];
-
-	devpriv->dac0_range = it->options[7];
-	devpriv->dac0_reference = it->options[8];
-	devpriv->dac0_coding = it->options[9];
-	devpriv->dac1_range = it->options[10];
-	devpriv->dac1_reference = it->options[11];
-	devpriv->dac1_coding = it->options[12];
-
-	/* setup sub-devices */
-	s = &dev->subdevices[0];
-	/* ai subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = (devpriv->adc_mux ? 16 : 8);
-	s->insn_read = atmio16d_ai_insn_read;
-	s->maxdata = 0xfff;	/* 4095 decimal */
-	switch (devpriv->adc_range) {
-	case adc_bipolar10:
-		s->range_table = &range_atmio16d_ai_10_bipolar;
-		break;
-	case adc_bipolar5:
-		s->range_table = &range_atmio16d_ai_5_bipolar;
-		break;
-	case adc_unipolar10:
-		s->range_table = &range_atmio16d_ai_unipolar;
-		break;
-	}
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->len_chanlist = 16;
-		s->do_cmdtest = atmio16d_ai_cmdtest;
-		s->do_cmd = atmio16d_ai_cmd;
-		s->cancel = atmio16d_ai_cancel;
-	}
-
-	/* ao subdevice */
-	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 2;
-	s->maxdata = 0xfff;	/* 4095 decimal */
-	s->range_table_list = devpriv->ao_range_type_list;
-	switch (devpriv->dac0_range) {
-	case dac_bipolar:
-		devpriv->ao_range_type_list[0] = &range_bipolar10;
-		break;
-	case dac_unipolar:
-		devpriv->ao_range_type_list[0] = &range_unipolar10;
-		break;
-	}
-	switch (devpriv->dac1_range) {
-	case dac_bipolar:
-		devpriv->ao_range_type_list[1] = &range_bipolar10;
-		break;
-	case dac_unipolar:
-		devpriv->ao_range_type_list[1] = &range_unipolar10;
-		break;
-	}
-	s->insn_write = atmio16d_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital I/O */
-	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
-	s->n_chan = 8;
-	s->insn_bits = atmio16d_dio_insn_bits;
-	s->insn_config = atmio16d_dio_insn_config;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-
-	/* 8255 subdevice */
-	s = &dev->subdevices[3];
-	if (board->has_8255) {
-		ret = subdev_8255_init(dev, s, NULL, 0x00);
-		if (ret)
-			return ret;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-/* don't yet know how to deal with counter/timers */
-#if 0
-	s = &dev->subdevices[4];
-	/* do */
-	s->type = COMEDI_SUBD_TIMER;
-	s->n_chan = 0;
-	s->maxdata = 0
-#endif
-
-	return 0;
-}
-
-static void atmio16d_detach(struct comedi_device *dev)
-{
-	reset_atmio16d(dev);
-	comedi_legacy_detach(dev);
-}
-
-static const struct atmio16_board_t atmio16_boards[] = {
-	{
-		.name		= "atmio16",
-		.has_8255	= 0,
-	}, {
-		.name		= "atmio16d",
-		.has_8255	= 1,
-	},
-};
-
-static struct comedi_driver atmio16d_driver = {
-	.driver_name	= "atmio16",
-	.module		= THIS_MODULE,
-	.attach		= atmio16d_attach,
-	.detach		= atmio16d_detach,
-	.board_name	= &atmio16_boards[0].name,
-	.num_names	= ARRAY_SIZE(atmio16_boards),
-	.offset		= sizeof(struct atmio16_board_t),
-};
-module_comedi_driver(atmio16d_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c
deleted file mode 100644
index 8f6396edd21c..000000000000
--- a/drivers/staging/comedi/drivers/ni_daq_700.c
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
- *     comedi/drivers/ni_daq_700.c
- *     Driver for DAQCard-700 DIO/AI
- *     copied from 8255
- *
- *     COMEDI - Linux Control and Measurement Device Interface
- *     Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- *     This program is free software; you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation; either version 2 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- */
-
-/*
- * Driver: ni_daq_700
- * Description: National Instruments PCMCIA DAQCard-700
- * Author: Fred Brooks <nsaspook@nsaspook.com>,
- *   based on ni_daq_dio24 by Daniel Vecino Castel <dvecino@able.es>
- * Devices: [National Instruments] PCMCIA DAQ-Card-700 (ni_daq_700)
- * Status: works
- * Updated: Wed, 21 May 2014 12:07:20 +0000
- *
- * The daqcard-700 appears in Comedi as a  digital I/O subdevice (0) with
- * 16 channels and a analog input subdevice (1) with 16 single-ended channels
- * or 8 differential channels, and three input ranges.
- *
- * Digital:  The channel 0 corresponds to the daqcard-700's output
- * port, bit 0; channel 8 corresponds to the input port, bit 0.
- *
- * Digital direction configuration: channels 0-7 output, 8-15 input.
- *
- * Analog: The input  range is 0 to 4095 with a default of -10 to +10 volts.
- * Valid ranges:
- *       0 for -10 to 10V bipolar
- *       1 for -5 to 5V bipolar
- *       2 for -2.5 to 2.5V bipolar
- *
- * IRQ is assigned but not used.
- *
- * Manuals:	Register level:	http://www.ni.com/pdf/manuals/340698.pdf
- *		User Manual:	http://www.ni.com/pdf/manuals/320676d.pdf
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pcmcia.h"
-
-/* daqcard700 registers */
-#define DIO_W		0x04	/* WO 8bit */
-#define DIO_R		0x05	/* RO 8bit */
-#define CMD_R1		0x00	/* WO 8bit */
-#define CMD_R2		0x07	/* RW 8bit */
-#define CMD_R3		0x05	/* W0 8bit */
-#define STA_R1		0x00	/* RO 8bit */
-#define STA_R2		0x01	/* RO 8bit */
-#define ADFIFO_R	0x02	/* RO 16bit */
-#define ADCLEAR_R	0x01	/* WO 8bit */
-#define CDA_R0		0x08	/* RW 8bit */
-#define CDA_R1		0x09	/* RW 8bit */
-#define CDA_R2		0x0A	/* RW 8bit */
-#define CMO_R		0x0B	/* RO 8bit */
-#define TIC_R		0x06	/* WO 8bit */
-/* daqcard700 modes */
-#define CMD_R3_DIFF     0x04    /* diff mode */
-
-static const struct comedi_lrange range_daq700_ai = {
-	3,
-	{
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5)
-	}
-};
-
-static int daq700_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int mask;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0xff)
-			outb(s->state & 0xff, dev->iobase + DIO_W);
-	}
-
-	val = s->state & 0xff;
-	val |= inb(dev->iobase + DIO_R) << 8;
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int daq700_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	/* The DIO channels are not configurable, fix the io_bits */
-	s->io_bits = 0x00ff;
-
-	return insn->n;
-}
-
-static int daq700_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + STA_R2);
-	if ((status & 0x03))
-		return -EOVERFLOW;
-	status = inb(dev->iobase + STA_R1);
-	if ((status & 0x02))
-		return -ENODATA;
-	if ((status & 0x11) == 0x01)
-		return 0;
-	return -EBUSY;
-}
-
-static int daq700_ai_rinsn(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn, unsigned int *data)
-{
-	int n;
-	int d;
-	int ret;
-	unsigned int chan	= CR_CHAN(insn->chanspec);
-	unsigned int aref	= CR_AREF(insn->chanspec);
-	unsigned int range	= CR_RANGE(insn->chanspec);
-	unsigned int r3_bits	= 0;
-
-	/* set channel input modes */
-	if (aref == AREF_DIFF)
-		r3_bits |= CMD_R3_DIFF;
-	/* write channel mode/range */
-	if (range >= 1)
-		range++;        /* convert range to hardware value */
-	outb(r3_bits | (range & 0x03), dev->iobase + CMD_R3);
-
-	/* write channel to multiplexer */
-	/* set mask scan bit high to disable scanning */
-	outb(chan | 0x80, dev->iobase + CMD_R1);
-	/* mux needs 2us to really settle [Fred Brooks]. */
-	udelay(2);
-
-	/* convert n samples */
-	for (n = 0; n < insn->n; n++) {
-		/* trigger conversion with out0 L to H */
-		outb(0x00, dev->iobase + CMD_R2); /* enable ADC conversions */
-		outb(0x30, dev->iobase + CMO_R); /* mode 0 out0 L, from H */
-		outb(0x00, dev->iobase + ADCLEAR_R);	/* clear the ADC FIFO */
-		/* read 16bit junk from FIFO to clear */
-		inw(dev->iobase + ADFIFO_R);
-		/* mode 1 out0 H, L to H, start conversion */
-		outb(0x32, dev->iobase + CMO_R);
-
-		/* wait for conversion to end */
-		ret = comedi_timeout(dev, s, insn, daq700_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* read data */
-		d = inw(dev->iobase + ADFIFO_R);
-		/* mangle the data as necessary */
-		/* Bipolar Offset Binary: 0 to 4095 for -10 to +10 */
-		d &= 0x0fff;
-		d ^= 0x0800;
-		data[n] = d;
-	}
-	return n;
-}
-
-/*
- * Data acquisition is enabled.
- * The counter 0 output is high.
- * The I/O connector pin CLK1 drives counter 1 source.
- * Multiple-channel scanning is disabled.
- * All interrupts are disabled.
- * The analog input range is set to +-10 V
- * The analog input mode is single-ended.
- * The analog input circuitry is initialized to channel 0.
- * The A/D FIFO is cleared.
- */
-static void daq700_ai_config(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	unsigned long iobase = dev->iobase;
-
-	outb(0x80, iobase + CMD_R1);	/* disable scanning, ADC to chan 0 */
-	outb(0x00, iobase + CMD_R2);	/* clear all bits */
-	outb(0x00, iobase + CMD_R3);	/* set +-10 range */
-	outb(0x32, iobase + CMO_R);	/* config counter mode1, out0 to H */
-	outb(0x00, iobase + TIC_R);	/* clear counter interrupt */
-	outb(0x00, iobase + ADCLEAR_R);	/* clear the ADC FIFO */
-	inw(iobase + ADFIFO_R);		/* read 16bit junk from FIFO to clear */
-}
-
-static int daq700_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	link->config_flags |= CONF_AUTO_SET_IO;
-	ret = comedi_pcmcia_enable(dev, NULL);
-	if (ret)
-		return ret;
-	dev->iobase = link->resource[0]->start;
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	/* DAQCard-700 dio */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->range_table	= &range_digital;
-	s->maxdata	= 1;
-	s->insn_bits	= daq700_dio_insn_bits;
-	s->insn_config	= daq700_dio_insn_config;
-	s->io_bits	= 0x00ff;
-
-	/* DAQCard-700 ai */
-	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan = 16;
-	s->maxdata = (1 << 12) - 1;
-	s->range_table = &range_daq700_ai;
-	s->insn_read = daq700_ai_rinsn;
-	daq700_ai_config(dev, s);
-
-	return 0;
-}
-
-static struct comedi_driver daq700_driver = {
-	.driver_name	= "ni_daq_700",
-	.module		= THIS_MODULE,
-	.auto_attach	= daq700_auto_attach,
-	.detach		= comedi_pcmcia_disable,
-};
-
-static int daq700_cs_attach(struct pcmcia_device *link)
-{
-	return comedi_pcmcia_auto_config(link, &daq700_driver);
-}
-
-static const struct pcmcia_device_id daq700_cs_ids[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x4743),
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, daq700_cs_ids);
-
-static struct pcmcia_driver daq700_cs_driver = {
-	.name		= "ni_daq_700",
-	.owner		= THIS_MODULE,
-	.id_table	= daq700_cs_ids,
-	.probe		= daq700_cs_attach,
-	.remove		= comedi_pcmcia_auto_unconfig,
-};
-module_comedi_pcmcia_driver(daq700_driver, daq700_cs_driver);
-
-MODULE_AUTHOR("Fred Brooks <nsaspook@nsaspook.com>");
-MODULE_DESCRIPTION(
-	"Comedi driver for National Instruments PCMCIA DAQCard-700 DIO/AI");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c
deleted file mode 100644
index d9de83ab0267..000000000000
--- a/drivers/staging/comedi/drivers/ni_daq_dio24.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
-    comedi/drivers/ni_daq_dio24.c
-    Driver for National Instruments PCMCIA DAQ-Card DIO-24
-    Copyright (C) 2002 Daniel Vecino Castel <dvecino@able.es>
-
-    PCMCIA crap at end of file is adapted from dummy_cs.c 1.31
-    2001/08/24 12:13:13 from the pcmcia package.
-    The initial developer of the pcmcia dummy_cs.c code is David A. Hinds
-    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
-    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_daq_dio24
-Description: National Instruments PCMCIA DAQ-Card DIO-24
-Author: Daniel Vecino Castel <dvecino@able.es>
-Devices: [National Instruments] PCMCIA DAQ-Card DIO-24 (ni_daq_dio24)
-Status: ?
-Updated: Thu, 07 Nov 2002 21:53:06 -0800
-
-This is just a wrapper around the 8255.o driver to properly handle
-the PCMCIA interface.
-*/
-
-#include <linux/module.h>
-#include "../comedi_pcmcia.h"
-
-#include "8255.h"
-
-static int dio24_auto_attach(struct comedi_device *dev,
-			     unsigned long context)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	struct comedi_subdevice *s;
-	int ret;
-
-	link->config_flags |= CONF_AUTO_SET_IO;
-	ret = comedi_pcmcia_enable(dev, NULL);
-	if (ret)
-		return ret;
-	dev->iobase = link->resource[0]->start;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	/* 8255 dio */
-	s = &dev->subdevices[0];
-	return subdev_8255_init(dev, s, NULL, 0x00);
-}
-
-static struct comedi_driver driver_dio24 = {
-	.driver_name	= "ni_daq_dio24",
-	.module		= THIS_MODULE,
-	.auto_attach	= dio24_auto_attach,
-	.detach		= comedi_pcmcia_disable,
-};
-
-static int dio24_cs_attach(struct pcmcia_device *link)
-{
-	return comedi_pcmcia_auto_config(link, &driver_dio24);
-}
-
-static const struct pcmcia_device_id dio24_cs_ids[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x475c),	/* daqcard-dio24 */
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, dio24_cs_ids);
-
-static struct pcmcia_driver dio24_cs_driver = {
-	.name		= "ni_daq_dio24",
-	.owner		= THIS_MODULE,
-	.id_table	= dio24_cs_ids,
-	.probe		= dio24_cs_attach,
-	.remove		= comedi_pcmcia_auto_unconfig,
-};
-module_comedi_pcmcia_driver(driver_dio24, dio24_cs_driver);
-
-MODULE_AUTHOR("Daniel Vecino Castel <dvecino@able.es>");
-MODULE_DESCRIPTION(
-	"Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
deleted file mode 100644
index 51e5e942b442..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * comedi/drivers/ni_labpc.c
- * Driver for National Instruments Lab-PC series boards and compatibles
- * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: ni_labpc
- * Description: National Instruments Lab-PC (& compatibles)
- * Devices: [National Instruments] Lab-PC-1200 (lab-pc-1200),
- *   Lab-PC-1200AI (lab-pc-1200ai), Lab-PC+ (lab-pc+)
- * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
- * Status: works
- *
- * Configuration options - ISA boards:
- *   [0] - I/O port base address
- *   [1] - IRQ (optional, required for timed or externally triggered
- *		conversions)
- *   [2] - DMA channel (optional)
- *
- * Tested with lab-pc-1200.  For the older Lab-PC+, not all input
- * ranges and analog references will work, the available ranges/arefs
- * will depend on how you have configured the jumpers on your board
- * (see your owner's manual).
- *
- * Kernel-level ISA plug-and-play support for the lab-pc-1200 boards
- * has not yet been added to the driver, mainly due to the fact that
- * I don't know the device id numbers. If you have one of these boards,
- * please file a bug report at http://comedi.org/ so I can get the
- * necessary information from you.
- *
- * The 1200 series boards have onboard calibration dacs for correcting
- * analog input/output offsets and gains. The proper settings for these
- * caldacs are stored on the board's eeprom. To read the caldac values
- * from the eeprom and store them into a file that can be then be used
- * by comedilib, use the comedi_calibrate program.
- *
- * The Lab-pc+ has quirky chanlist requirements when scanning multiple
- * channels. Multiple channel scan sequence must start at highest channel,
- * then decrement down to channel 0. The rest of the cards can scan down
- * like lab-pc+ or scan up from channel zero. Chanlists consisting of all
- * one channel are also legal, and allow you to pace conversions in bursts.
- *
- * NI manuals:
- * 341309a (labpc-1200 register manual)
- * 320502b (lab-pc+)
- */
-
-#include <linux/module.h>
-
-#include "../comedidev.h"
-
-#include "ni_labpc.h"
-#include "ni_labpc_isadma.h"
-
-static const struct labpc_boardinfo labpc_boards[] = {
-	{
-		.name			= "lab-pc-1200",
-		.ai_speed		= 10000,
-		.ai_scan_up		= 1,
-		.has_ao			= 1,
-		.is_labpc1200		= 1,
-	}, {
-		.name			= "lab-pc-1200ai",
-		.ai_speed		= 10000,
-		.ai_scan_up		= 1,
-		.is_labpc1200		= 1,
-	}, {
-		.name			= "lab-pc+",
-		.ai_speed		= 12000,
-		.has_ao			= 1,
-	},
-};
-
-static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	unsigned int irq = it->options[1];
-	unsigned int dma_chan = it->options[2];
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x20);
-	if (ret)
-		return ret;
-
-	ret = labpc_common_attach(dev, irq, 0);
-	if (ret)
-		return ret;
-
-	if (dev->irq)
-		labpc_init_dma_chan(dev, dma_chan);
-
-	return 0;
-}
-
-static void labpc_detach(struct comedi_device *dev)
-{
-	labpc_free_dma_chan(dev);
-	labpc_common_detach(dev);
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver labpc_driver = {
-	.driver_name	= "ni_labpc",
-	.module		= THIS_MODULE,
-	.attach		= labpc_attach,
-	.detach		= labpc_detach,
-	.num_names	= ARRAY_SIZE(labpc_boards),
-	.board_name	= &labpc_boards[0].name,
-	.offset		= sizeof(struct labpc_boardinfo),
-};
-module_comedi_driver(labpc_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for NI Lab-PC ISA boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h
deleted file mode 100644
index 83f878adbd53..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
-    ni_labpc.h
-
-    Header for ni_labpc.c and ni_labpc_cs.c
-
-    Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#ifndef _NI_LABPC_H
-#define _NI_LABPC_H
-
-#define EEPROM_SIZE	256	/*  256 byte eeprom */
-#define NUM_AO_CHAN	2	/*  boards have two analog output channels */
-
-enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer,
-	isa_dma_transfer
-};
-
-struct labpc_boardinfo {
-	const char *name;
-	int ai_speed;			/* maximum input speed in ns */
-	unsigned ai_scan_up:1;		/* can auto scan up in ai channels */
-	unsigned has_ao:1;		/* has analog outputs */
-	unsigned is_labpc1200:1;	/* has extra regs compared to pc+ */
-};
-
-struct labpc_private {
-	struct comedi_isadma *dma;
-	struct comedi_8254 *counter;
-
-	/*  number of data points left to be taken */
-	unsigned long long count;
-	/*  software copys of bits written to command registers */
-	unsigned int cmd1;
-	unsigned int cmd2;
-	unsigned int cmd3;
-	unsigned int cmd4;
-	unsigned int cmd5;
-	unsigned int cmd6;
-	/*  store last read of board status registers */
-	unsigned int stat1;
-	unsigned int stat2;
-
-	/* we are using dma/fifo-half-full/etc. */
-	enum transfer_type current_transfer;
-	/*
-	 * function pointers so we can use inb/outb or readb/writeb as
-	 * appropriate
-	 */
-	unsigned int (*read_byte)(struct comedi_device *, unsigned long reg);
-	void (*write_byte)(struct comedi_device *,
-			   unsigned int byte, unsigned long reg);
-};
-
-int labpc_common_attach(struct comedi_device *dev,
-			unsigned int irq, unsigned long isr_flags);
-void labpc_common_detach(struct comedi_device *dev);
-
-#endif /* _NI_LABPC_H */
diff --git a/drivers/staging/comedi/drivers/ni_labpc_common.c b/drivers/staging/comedi/drivers/ni_labpc_common.c
deleted file mode 100644
index 863afb28ee28..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc_common.c
+++ /dev/null
@@ -1,1355 +0,0 @@
-/*
- * comedi/drivers/ni_labpc_common.c
- *
- * Common support code for "ni_labpc", "ni_labpc_pci" and "ni_labpc_cs".
- *
- * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-#include "../comedidev.h"
-
-#include "comedi_8254.h"
-#include "8255.h"
-#include "ni_labpc.h"
-#include "ni_labpc_regs.h"
-#include "ni_labpc_isadma.h"
-
-enum scan_mode {
-	MODE_SINGLE_CHAN,
-	MODE_SINGLE_CHAN_INTERVAL,
-	MODE_MULT_CHAN_UP,
-	MODE_MULT_CHAN_DOWN,
-};
-
-static const struct comedi_lrange range_labpc_plus_ai = {
-	16, {
-		BIP_RANGE(5),
-		BIP_RANGE(4),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.25),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.05),
-		UNI_RANGE(10),
-		UNI_RANGE(8),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1),
-		UNI_RANGE(0.5),
-		UNI_RANGE(0.2),
-		UNI_RANGE(0.1)
-	}
-};
-
-static const struct comedi_lrange range_labpc_1200_ai = {
-	14, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.25),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.05),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1),
-		UNI_RANGE(0.5),
-		UNI_RANGE(0.2),
-		UNI_RANGE(0.1)
-	}
-};
-
-static const struct comedi_lrange range_labpc_ao = {
-	2, {
-		BIP_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-/* functions that do inb/outb and readb/writeb so we can use
- * function pointers to decide which to use */
-static unsigned int labpc_inb(struct comedi_device *dev, unsigned long reg)
-{
-	return inb(dev->iobase + reg);
-}
-
-static void labpc_outb(struct comedi_device *dev,
-		       unsigned int byte, unsigned long reg)
-{
-	outb(byte, dev->iobase + reg);
-}
-
-static unsigned int labpc_readb(struct comedi_device *dev, unsigned long reg)
-{
-	return readb(dev->mmio + reg);
-}
-
-static void labpc_writeb(struct comedi_device *dev,
-			 unsigned int byte, unsigned long reg)
-{
-	writeb(byte, dev->mmio + reg);
-}
-
-static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct labpc_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->cmd2 &= ~(CMD2_SWTRIG | CMD2_HWTRIG | CMD2_PRETRIG);
-	devpriv->write_byte(dev, devpriv->cmd2, CMD2_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	devpriv->cmd3 = 0;
-	devpriv->write_byte(dev, devpriv->cmd3, CMD3_REG);
-
-	return 0;
-}
-
-static void labpc_ai_set_chan_and_gain(struct comedi_device *dev,
-				       enum scan_mode mode,
-				       unsigned int chan,
-				       unsigned int range,
-				       unsigned int aref)
-{
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	struct labpc_private *devpriv = dev->private;
-
-	if (board->is_labpc1200) {
-		/*
-		 * The LabPC-1200 boards do not have a gain
-		 * of '0x10'. Skip the range values that would
-		 * result in this gain.
-		 */
-		range += (range > 0) + (range > 7);
-	}
-
-	/* munge channel bits for differential/scan disabled mode */
-	if ((mode == MODE_SINGLE_CHAN || mode == MODE_SINGLE_CHAN_INTERVAL) &&
-	    aref == AREF_DIFF)
-		chan *= 2;
-	devpriv->cmd1 = CMD1_MA(chan);
-	devpriv->cmd1 |= CMD1_GAIN(range);
-
-	devpriv->write_byte(dev, devpriv->cmd1, CMD1_REG);
-}
-
-static void labpc_setup_cmd6_reg(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 enum scan_mode mode,
-				 enum transfer_type xfer,
-				 unsigned int range,
-				 unsigned int aref,
-				 bool ena_intr)
-{
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	struct labpc_private *devpriv = dev->private;
-
-	if (!board->is_labpc1200)
-		return;
-
-	/* reference inputs to ground or common? */
-	if (aref != AREF_GROUND)
-		devpriv->cmd6 |= CMD6_NRSE;
-	else
-		devpriv->cmd6 &= ~CMD6_NRSE;
-
-	/* bipolar or unipolar range? */
-	if (comedi_range_is_unipolar(s, range))
-		devpriv->cmd6 |= CMD6_ADCUNI;
-	else
-		devpriv->cmd6 &= ~CMD6_ADCUNI;
-
-	/*  interrupt on fifo half full? */
-	if (xfer == fifo_half_full_transfer)
-		devpriv->cmd6 |= CMD6_HFINTEN;
-	else
-		devpriv->cmd6 &= ~CMD6_HFINTEN;
-
-	/* enable interrupt on counter a1 terminal count? */
-	if (ena_intr)
-		devpriv->cmd6 |= CMD6_DQINTEN;
-	else
-		devpriv->cmd6 &= ~CMD6_DQINTEN;
-
-	/* are we scanning up or down through channels? */
-	if (mode == MODE_MULT_CHAN_UP)
-		devpriv->cmd6 |= CMD6_SCANUP;
-	else
-		devpriv->cmd6 &= ~CMD6_SCANUP;
-
-	devpriv->write_byte(dev, devpriv->cmd6, CMD6_REG);
-}
-
-static unsigned int labpc_read_adc_fifo(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-	unsigned int lsb = devpriv->read_byte(dev, ADC_FIFO_REG);
-	unsigned int msb = devpriv->read_byte(dev, ADC_FIFO_REG);
-
-	return (msb << 8) | lsb;
-}
-
-static void labpc_clear_adc_fifo(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	devpriv->write_byte(dev, 0x1, ADC_FIFO_CLEAR_REG);
-	labpc_read_adc_fifo(dev);
-}
-
-static int labpc_ai_eoc(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned long context)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	devpriv->stat1 = devpriv->read_byte(dev, STAT1_REG);
-	if (devpriv->stat1 & STAT1_DAVAIL)
-		return 0;
-	return -EBUSY;
-}
-
-static int labpc_ai_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	struct labpc_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int aref = CR_AREF(insn->chanspec);
-	int ret;
-	int i;
-
-	/* disable timed conversions, interrupt generation and dma */
-	labpc_cancel(dev, s);
-
-	labpc_ai_set_chan_and_gain(dev, MODE_SINGLE_CHAN, chan, range, aref);
-
-	labpc_setup_cmd6_reg(dev, s, MODE_SINGLE_CHAN, fifo_not_empty_transfer,
-			     range, aref, false);
-
-	/* setup cmd4 register */
-	devpriv->cmd4 = 0;
-	devpriv->cmd4 |= CMD4_ECLKRCV;
-	/* single-ended/differential */
-	if (aref == AREF_DIFF)
-		devpriv->cmd4 |= CMD4_SEDIFF;
-	devpriv->write_byte(dev, devpriv->cmd4, CMD4_REG);
-
-	/* initialize pacer counter to prevent any problems */
-	comedi_8254_set_mode(devpriv->counter, 0, I8254_MODE2 | I8254_BINARY);
-
-	labpc_clear_adc_fifo(dev);
-
-	for (i = 0; i < insn->n; i++) {
-		/* trigger conversion */
-		devpriv->write_byte(dev, 0x1, ADC_START_CONVERT_REG);
-
-		ret = comedi_timeout(dev, s, insn, labpc_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[i] = labpc_read_adc_fifo(dev);
-	}
-
-	return insn->n;
-}
-
-static bool labpc_use_continuous_mode(const struct comedi_cmd *cmd,
-				      enum scan_mode mode)
-{
-	if (mode == MODE_SINGLE_CHAN || cmd->scan_begin_src == TRIG_FOLLOW)
-		return true;
-
-	return false;
-}
-
-static unsigned int labpc_ai_convert_period(const struct comedi_cmd *cmd,
-					    enum scan_mode mode)
-{
-	if (cmd->convert_src != TRIG_TIMER)
-		return 0;
-
-	if (mode == MODE_SINGLE_CHAN && cmd->scan_begin_src == TRIG_TIMER)
-		return cmd->scan_begin_arg;
-
-	return cmd->convert_arg;
-}
-
-static void labpc_set_ai_convert_period(struct comedi_cmd *cmd,
-					enum scan_mode mode, unsigned int ns)
-{
-	if (cmd->convert_src != TRIG_TIMER)
-		return;
-
-	if (mode == MODE_SINGLE_CHAN &&
-	    cmd->scan_begin_src == TRIG_TIMER) {
-		cmd->scan_begin_arg = ns;
-		if (cmd->convert_arg > cmd->scan_begin_arg)
-			cmd->convert_arg = cmd->scan_begin_arg;
-	} else {
-		cmd->convert_arg = ns;
-	}
-}
-
-static unsigned int labpc_ai_scan_period(const struct comedi_cmd *cmd,
-					 enum scan_mode mode)
-{
-	if (cmd->scan_begin_src != TRIG_TIMER)
-		return 0;
-
-	if (mode == MODE_SINGLE_CHAN && cmd->convert_src == TRIG_TIMER)
-		return 0;
-
-	return cmd->scan_begin_arg;
-}
-
-static void labpc_set_ai_scan_period(struct comedi_cmd *cmd,
-				     enum scan_mode mode, unsigned int ns)
-{
-	if (cmd->scan_begin_src != TRIG_TIMER)
-		return;
-
-	if (mode == MODE_SINGLE_CHAN && cmd->convert_src == TRIG_TIMER)
-		return;
-
-	cmd->scan_begin_arg = ns;
-}
-
-/* figures out what counter values to use based on command */
-static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
-			     enum scan_mode mode)
-{
-	struct comedi_8254 *pacer = dev->pacer;
-	unsigned int convert_period = labpc_ai_convert_period(cmd, mode);
-	unsigned int scan_period = labpc_ai_scan_period(cmd, mode);
-	unsigned int base_period;
-
-	/*
-	 * If both convert and scan triggers are TRIG_TIMER, then they
-	 * both rely on counter b0. If only one TRIG_TIMER is used, we
-	 * can use the generic cascaded timing functions.
-	 */
-	if (convert_period && scan_period) {
-		/*
-		 * pick the lowest divisor value we can (for maximum input
-		 * clock speed on convert and scan counters)
-		 */
-		pacer->next_div1 = (scan_period - 1) /
-				   (pacer->osc_base * I8254_MAX_COUNT) + 1;
-
-		comedi_check_trigger_arg_min(&pacer->next_div1, 2);
-		comedi_check_trigger_arg_max(&pacer->next_div1,
-					     I8254_MAX_COUNT);
-
-		base_period = pacer->osc_base * pacer->next_div1;
-
-		/*  set a0 for conversion frequency and b1 for scan frequency */
-		switch (cmd->flags & CMDF_ROUND_MASK) {
-		default:
-		case CMDF_ROUND_NEAREST:
-			pacer->next_div = DIV_ROUND_CLOSEST(convert_period,
-							    base_period);
-			pacer->next_div2 = DIV_ROUND_CLOSEST(scan_period,
-							     base_period);
-			break;
-		case CMDF_ROUND_UP:
-			pacer->next_div = DIV_ROUND_UP(convert_period,
-						       base_period);
-			pacer->next_div2 = DIV_ROUND_UP(scan_period,
-							base_period);
-			break;
-		case CMDF_ROUND_DOWN:
-			pacer->next_div = convert_period / base_period;
-			pacer->next_div2 = scan_period / base_period;
-			break;
-		}
-		/*  make sure a0 and b1 values are acceptable */
-		comedi_check_trigger_arg_min(&pacer->next_div, 2);
-		comedi_check_trigger_arg_max(&pacer->next_div, I8254_MAX_COUNT);
-		comedi_check_trigger_arg_min(&pacer->next_div2, 2);
-		comedi_check_trigger_arg_max(&pacer->next_div2,
-					     I8254_MAX_COUNT);
-
-		/*  write corrected timings to command */
-		labpc_set_ai_convert_period(cmd, mode,
-					    base_period * pacer->next_div);
-		labpc_set_ai_scan_period(cmd, mode,
-					 base_period * pacer->next_div2);
-	} else if (scan_period) {
-		/*
-		 * calculate cascaded counter values
-		 * that give desired scan timing
-		 * (pacer->next_div2 / pacer->next_div1)
-		 */
-		comedi_8254_cascade_ns_to_timer(pacer, &scan_period,
-						cmd->flags);
-		labpc_set_ai_scan_period(cmd, mode, scan_period);
-	} else if (convert_period) {
-		/*
-		 * calculate cascaded counter values
-		 * that give desired conversion timing
-		 * (pacer->next_div / pacer->next_div1)
-		 */
-		comedi_8254_cascade_ns_to_timer(pacer, &convert_period,
-						cmd->flags);
-		/* transfer div2 value so correct timer gets updated */
-		pacer->next_div = pacer->next_div2;
-		labpc_set_ai_convert_period(cmd, mode, convert_period);
-	}
-}
-
-static enum scan_mode labpc_ai_scan_mode(const struct comedi_cmd *cmd)
-{
-	unsigned int chan0;
-	unsigned int chan1;
-
-	if (cmd->chanlist_len == 1)
-		return MODE_SINGLE_CHAN;
-
-	/* chanlist may be NULL during cmdtest */
-	if (!cmd->chanlist)
-		return MODE_MULT_CHAN_UP;
-
-	chan0 = CR_CHAN(cmd->chanlist[0]);
-	chan1 = CR_CHAN(cmd->chanlist[1]);
-
-	if (chan0 < chan1)
-		return MODE_MULT_CHAN_UP;
-
-	if (chan0 > chan1)
-		return MODE_MULT_CHAN_DOWN;
-
-	return MODE_SINGLE_CHAN_INTERVAL;
-}
-
-static int labpc_ai_check_chanlist(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_cmd *cmd)
-{
-	enum scan_mode mode = labpc_ai_scan_mode(cmd);
-	unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
-	unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
-	unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-		unsigned int aref = CR_AREF(cmd->chanlist[i]);
-
-		switch (mode) {
-		case MODE_SINGLE_CHAN:
-			break;
-		case MODE_SINGLE_CHAN_INTERVAL:
-			if (chan != chan0) {
-				dev_dbg(dev->class_dev,
-					"channel scanning order specified in chanlist is not supported by hardware\n");
-				return -EINVAL;
-			}
-			break;
-		case MODE_MULT_CHAN_UP:
-			if (chan != i) {
-				dev_dbg(dev->class_dev,
-					"channel scanning order specified in chanlist is not supported by hardware\n");
-				return -EINVAL;
-			}
-			break;
-		case MODE_MULT_CHAN_DOWN:
-			if (chan != (cmd->chanlist_len - i - 1)) {
-				dev_dbg(dev->class_dev,
-					"channel scanning order specified in chanlist is not supported by hardware\n");
-				return -EINVAL;
-			}
-			break;
-		}
-
-		if (range != range0) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must all have the same range\n");
-			return -EINVAL;
-		}
-
-		if (aref != aref0) {
-			dev_dbg(dev->class_dev,
-				"entries in chanlist must all have the same reference\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static int labpc_ai_cmdtest(struct comedi_device *dev,
-			    struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	int err = 0;
-	int tmp, tmp2;
-	unsigned int stop_mask;
-	enum scan_mode mode;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_FOLLOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-
-	stop_mask = TRIG_COUNT | TRIG_NONE;
-	if (board->is_labpc1200)
-		stop_mask |= TRIG_EXT;
-	err |= comedi_check_trigger_src(&cmd->stop_src, stop_mask);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	/* can't have external stop and start triggers at once */
-	if (cmd->start_src == TRIG_EXT && cmd->stop_src == TRIG_EXT)
-		err++;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		/* start_arg value is ignored */
-		break;
-	}
-
-	if (!cmd->chanlist_len)
-		err |= -EINVAL;
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_speed);
-	}
-
-	/* make sure scan timing is not too fast */
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		if (cmd->convert_src == TRIG_TIMER) {
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    cmd->convert_arg *
-							    cmd->chanlist_len);
-		}
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    board->ai_speed *
-						    cmd->chanlist_len);
-	}
-
-	switch (cmd->stop_src) {
-	case TRIG_COUNT:
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-		break;
-	case TRIG_NONE:
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-		break;
-		/*
-		 * TRIG_EXT doesn't care since it doesn't
-		 * trigger off a numbered channel
-		 */
-	default:
-		break;
-	}
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	tmp = cmd->convert_arg;
-	tmp2 = cmd->scan_begin_arg;
-	mode = labpc_ai_scan_mode(cmd);
-	labpc_adc_timing(dev, cmd, mode);
-	if (tmp != cmd->convert_arg || tmp2 != cmd->scan_begin_arg)
-		err++;
-
-	if (err)
-		return 4;
-
-	/* Step 5: check channel list if it exists */
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= labpc_ai_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	struct labpc_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	enum scan_mode mode = labpc_ai_scan_mode(cmd);
-	unsigned int chanspec = (mode == MODE_MULT_CHAN_UP) ?
-				cmd->chanlist[cmd->chanlist_len - 1] :
-				cmd->chanlist[0];
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int aref = CR_AREF(chanspec);
-	enum transfer_type xfer;
-	unsigned long flags;
-
-	/* make sure board is disabled before setting up acquisition */
-	labpc_cancel(dev, s);
-
-	/*  initialize software conversion count */
-	if (cmd->stop_src == TRIG_COUNT)
-		devpriv->count = cmd->stop_arg * cmd->chanlist_len;
-
-	/*  setup hardware conversion counter */
-	if (cmd->stop_src == TRIG_EXT) {
-		/*
-		 * load counter a1 with count of 3
-		 * (pc+ manual says this is minimum allowed) using mode 0
-		 */
-		comedi_8254_load(devpriv->counter, 1,
-				 3, I8254_MODE0 | I8254_BINARY);
-	} else	{
-		/* just put counter a1 in mode 0 to set its output low */
-		comedi_8254_set_mode(devpriv->counter, 1,
-				     I8254_MODE0 | I8254_BINARY);
-	}
-
-	/* figure out what method we will use to transfer data */
-	if (devpriv->dma &&
-	    /* dma unsafe at RT priority,
-	     * and too much setup time for CMDF_WAKE_EOS */
-	    (cmd->flags & (CMDF_WAKE_EOS | CMDF_PRIORITY)) == 0)
-		xfer = isa_dma_transfer;
-	else if (/* pc-plus has no fifo-half full interrupt */
-		 board->is_labpc1200 &&
-		 /* wake-end-of-scan should interrupt on fifo not empty */
-		 (cmd->flags & CMDF_WAKE_EOS) == 0 &&
-		 /* make sure we are taking more than just a few points */
-		 (cmd->stop_src != TRIG_COUNT || devpriv->count > 256))
-		xfer = fifo_half_full_transfer;
-	else
-		xfer = fifo_not_empty_transfer;
-	devpriv->current_transfer = xfer;
-
-	labpc_ai_set_chan_and_gain(dev, mode, chan, range, aref);
-
-	labpc_setup_cmd6_reg(dev, s, mode, xfer, range, aref,
-			     (cmd->stop_src == TRIG_EXT));
-
-	/* manual says to set scan enable bit on second pass */
-	if (mode == MODE_MULT_CHAN_UP || mode == MODE_MULT_CHAN_DOWN) {
-		devpriv->cmd1 |= CMD1_SCANEN;
-		/* need a brief delay before enabling scan, or scan
-		 * list will get screwed when you switch
-		 * between scan up to scan down mode - dunno why */
-		udelay(1);
-		devpriv->write_byte(dev, devpriv->cmd1, CMD1_REG);
-	}
-
-	devpriv->write_byte(dev, cmd->chanlist_len, INTERVAL_COUNT_REG);
-	/*  load count */
-	devpriv->write_byte(dev, 0x1, INTERVAL_STROBE_REG);
-
-	if (cmd->convert_src == TRIG_TIMER ||
-	    cmd->scan_begin_src == TRIG_TIMER) {
-		struct comedi_8254 *pacer = dev->pacer;
-		struct comedi_8254 *counter = devpriv->counter;
-
-		comedi_8254_update_divisors(pacer);
-
-		/* set up pacing */
-		comedi_8254_load(pacer, 0, pacer->divisor1,
-				 I8254_MODE3 | I8254_BINARY);
-
-		/* set up conversion pacing */
-		comedi_8254_set_mode(counter, 0, I8254_MODE2 | I8254_BINARY);
-		if (labpc_ai_convert_period(cmd, mode))
-			comedi_8254_write(counter, 0, pacer->divisor);
-
-		/* set up scan pacing */
-		if (labpc_ai_scan_period(cmd, mode))
-			comedi_8254_load(pacer, 1, pacer->divisor2,
-					 I8254_MODE2 | I8254_BINARY);
-	}
-
-	labpc_clear_adc_fifo(dev);
-
-	if (xfer == isa_dma_transfer)
-		labpc_setup_dma(dev, s);
-
-	/*  enable error interrupts */
-	devpriv->cmd3 |= CMD3_ERRINTEN;
-	/*  enable fifo not empty interrupt? */
-	if (xfer == fifo_not_empty_transfer)
-		devpriv->cmd3 |= CMD3_FIFOINTEN;
-	devpriv->write_byte(dev, devpriv->cmd3, CMD3_REG);
-
-	/*  setup any external triggering/pacing (cmd4 register) */
-	devpriv->cmd4 = 0;
-	if (cmd->convert_src != TRIG_EXT)
-		devpriv->cmd4 |= CMD4_ECLKRCV;
-	/* XXX should discard first scan when using interval scanning
-	 * since manual says it is not synced with scan clock */
-	if (!labpc_use_continuous_mode(cmd, mode)) {
-		devpriv->cmd4 |= CMD4_INTSCAN;
-		if (cmd->scan_begin_src == TRIG_EXT)
-			devpriv->cmd4 |= CMD4_EOIRCV;
-	}
-	/*  single-ended/differential */
-	if (aref == AREF_DIFF)
-		devpriv->cmd4 |= CMD4_SEDIFF;
-	devpriv->write_byte(dev, devpriv->cmd4, CMD4_REG);
-
-	/*  startup acquisition */
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	/* use 2 cascaded counters for pacing */
-	devpriv->cmd2 |= CMD2_TBSEL;
-
-	devpriv->cmd2 &= ~(CMD2_SWTRIG | CMD2_HWTRIG | CMD2_PRETRIG);
-	if (cmd->start_src == TRIG_EXT)
-		devpriv->cmd2 |= CMD2_HWTRIG;
-	else
-		devpriv->cmd2 |= CMD2_SWTRIG;
-	if (cmd->stop_src == TRIG_EXT)
-		devpriv->cmd2 |= (CMD2_HWTRIG | CMD2_PRETRIG);
-
-	devpriv->write_byte(dev, devpriv->cmd2, CMD2_REG);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return 0;
-}
-
-/* read all available samples from ai fifo */
-static int labpc_drain_fifo(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-	struct comedi_async *async = dev->read_subdev->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned short data;
-	const int timeout = 10000;
-	unsigned int i;
-
-	devpriv->stat1 = devpriv->read_byte(dev, STAT1_REG);
-
-	for (i = 0; (devpriv->stat1 & STAT1_DAVAIL) && i < timeout;
-	     i++) {
-		/*  quit if we have all the data we want */
-		if (cmd->stop_src == TRIG_COUNT) {
-			if (devpriv->count == 0)
-				break;
-			devpriv->count--;
-		}
-		data = labpc_read_adc_fifo(dev);
-		comedi_buf_write_samples(dev->read_subdev, &data, 1);
-		devpriv->stat1 = devpriv->read_byte(dev, STAT1_REG);
-	}
-	if (i == timeout) {
-		dev_err(dev->class_dev, "ai timeout, fifo never empties\n");
-		async->events |= COMEDI_CB_ERROR;
-		return -1;
-	}
-
-	return 0;
-}
-
-/* makes sure all data acquired by board is transferred to comedi (used
- * when acquisition is terminated by stop_src == TRIG_EXT). */
-static void labpc_drain_dregs(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	if (devpriv->current_transfer == isa_dma_transfer)
-		labpc_drain_dma(dev);
-
-	labpc_drain_fifo(dev);
-}
-
-/* interrupt service routine */
-static irqreturn_t labpc_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	struct labpc_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async;
-	struct comedi_cmd *cmd;
-
-	if (!dev->attached) {
-		dev_err(dev->class_dev, "premature interrupt\n");
-		return IRQ_HANDLED;
-	}
-
-	async = s->async;
-	cmd = &async->cmd;
-
-	/* read board status */
-	devpriv->stat1 = devpriv->read_byte(dev, STAT1_REG);
-	if (board->is_labpc1200)
-		devpriv->stat2 = devpriv->read_byte(dev, STAT2_REG);
-
-	if ((devpriv->stat1 & (STAT1_GATA0 | STAT1_CNTINT | STAT1_OVERFLOW |
-			       STAT1_OVERRUN | STAT1_DAVAIL)) == 0 &&
-	    (devpriv->stat2 & STAT2_OUTA1) == 0 &&
-	    (devpriv->stat2 & STAT2_FIFONHF)) {
-		return IRQ_NONE;
-	}
-
-	if (devpriv->stat1 & STAT1_OVERRUN) {
-		/* clear error interrupt */
-		devpriv->write_byte(dev, 0x1, ADC_FIFO_CLEAR_REG);
-		async->events |= COMEDI_CB_ERROR;
-		comedi_handle_events(dev, s);
-		dev_err(dev->class_dev, "overrun\n");
-		return IRQ_HANDLED;
-	}
-
-	if (devpriv->current_transfer == isa_dma_transfer)
-		labpc_handle_dma_status(dev);
-	else
-		labpc_drain_fifo(dev);
-
-	if (devpriv->stat1 & STAT1_CNTINT) {
-		dev_err(dev->class_dev, "handled timer interrupt?\n");
-		/*  clear it */
-		devpriv->write_byte(dev, 0x1, TIMER_CLEAR_REG);
-	}
-
-	if (devpriv->stat1 & STAT1_OVERFLOW) {
-		/*  clear error interrupt */
-		devpriv->write_byte(dev, 0x1, ADC_FIFO_CLEAR_REG);
-		async->events |= COMEDI_CB_ERROR;
-		comedi_handle_events(dev, s);
-		dev_err(dev->class_dev, "overflow\n");
-		return IRQ_HANDLED;
-	}
-	/*  handle external stop trigger */
-	if (cmd->stop_src == TRIG_EXT) {
-		if (devpriv->stat2 & STAT2_OUTA1) {
-			labpc_drain_dregs(dev);
-			async->events |= COMEDI_CB_EOA;
-		}
-	}
-
-	/* TRIG_COUNT end of acquisition */
-	if (cmd->stop_src == TRIG_COUNT) {
-		if (devpriv->count == 0)
-			async->events |= COMEDI_CB_EOA;
-	}
-
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static void labpc_ao_write(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   unsigned int chan, unsigned int val)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	devpriv->write_byte(dev, val & 0xff, DAC_LSB_REG(chan));
-	devpriv->write_byte(dev, (val >> 8) & 0xff, DAC_MSB_REG(chan));
-
-	s->readback[chan] = val;
-}
-
-static int labpc_ao_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	struct labpc_private *devpriv = dev->private;
-	int channel, range;
-	unsigned long flags;
-
-	channel = CR_CHAN(insn->chanspec);
-
-	/* turn off pacing of analog output channel */
-	/* note: hardware bug in daqcard-1200 means pacing cannot
-	 * be independently enabled/disabled for its the two channels */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	devpriv->cmd2 &= ~CMD2_LDAC(channel);
-	devpriv->write_byte(dev, devpriv->cmd2, CMD2_REG);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	/* set range */
-	if (board->is_labpc1200) {
-		range = CR_RANGE(insn->chanspec);
-		if (comedi_range_is_unipolar(s, range))
-			devpriv->cmd6 |= CMD6_DACUNI(channel);
-		else
-			devpriv->cmd6 &= ~CMD6_DACUNI(channel);
-		/*  write to register */
-		devpriv->write_byte(dev, devpriv->cmd6, CMD6_REG);
-	}
-	/* send data */
-	labpc_ao_write(dev, s, channel, data[0]);
-
-	return 1;
-}
-
-/* lowlevel write to eeprom/dac */
-static void labpc_serial_out(struct comedi_device *dev, unsigned int value,
-			     unsigned int value_width)
-{
-	struct labpc_private *devpriv = dev->private;
-	int i;
-
-	for (i = 1; i <= value_width; i++) {
-		/*  clear serial clock */
-		devpriv->cmd5 &= ~CMD5_SCLK;
-		/*  send bits most significant bit first */
-		if (value & (1 << (value_width - i)))
-			devpriv->cmd5 |= CMD5_SDATA;
-		else
-			devpriv->cmd5 &= ~CMD5_SDATA;
-		udelay(1);
-		devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-		/*  set clock to load bit */
-		devpriv->cmd5 |= CMD5_SCLK;
-		udelay(1);
-		devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-	}
-}
-
-/* lowlevel read from eeprom */
-static unsigned int labpc_serial_in(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-	unsigned int value = 0;
-	int i;
-	const int value_width = 8;	/*  number of bits wide values are */
-
-	for (i = 1; i <= value_width; i++) {
-		/*  set serial clock */
-		devpriv->cmd5 |= CMD5_SCLK;
-		udelay(1);
-		devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-		/*  clear clock bit */
-		devpriv->cmd5 &= ~CMD5_SCLK;
-		udelay(1);
-		devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-		/*  read bits most significant bit first */
-		udelay(1);
-		devpriv->stat2 = devpriv->read_byte(dev, STAT2_REG);
-		if (devpriv->stat2 & STAT2_PROMOUT)
-			value |= 1 << (value_width - i);
-	}
-
-	return value;
-}
-
-static unsigned int labpc_eeprom_read(struct comedi_device *dev,
-				      unsigned int address)
-{
-	struct labpc_private *devpriv = dev->private;
-	unsigned int value;
-	/*  bits to tell eeprom to expect a read */
-	const int read_instruction = 0x3;
-	/*  8 bit write lengths to eeprom */
-	const int write_length = 8;
-
-	/*  enable read/write to eeprom */
-	devpriv->cmd5 &= ~CMD5_EEPROMCS;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-	devpriv->cmd5 |= (CMD5_EEPROMCS | CMD5_WRTPRT);
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	/*  send read instruction */
-	labpc_serial_out(dev, read_instruction, write_length);
-	/*  send 8 bit address to read from */
-	labpc_serial_out(dev, address, write_length);
-	/*  read result */
-	value = labpc_serial_in(dev);
-
-	/*  disable read/write to eeprom */
-	devpriv->cmd5 &= ~(CMD5_EEPROMCS | CMD5_WRTPRT);
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	return value;
-}
-
-static unsigned int labpc_eeprom_read_status(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-	unsigned int value;
-	const int read_status_instruction = 0x5;
-	const int write_length = 8;	/*  8 bit write lengths to eeprom */
-
-	/*  enable read/write to eeprom */
-	devpriv->cmd5 &= ~CMD5_EEPROMCS;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-	devpriv->cmd5 |= (CMD5_EEPROMCS | CMD5_WRTPRT);
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	/*  send read status instruction */
-	labpc_serial_out(dev, read_status_instruction, write_length);
-	/*  read result */
-	value = labpc_serial_in(dev);
-
-	/*  disable read/write to eeprom */
-	devpriv->cmd5 &= ~(CMD5_EEPROMCS | CMD5_WRTPRT);
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	return value;
-}
-
-static void labpc_eeprom_write(struct comedi_device *dev,
-			       unsigned int address, unsigned int value)
-{
-	struct labpc_private *devpriv = dev->private;
-	const int write_enable_instruction = 0x6;
-	const int write_instruction = 0x2;
-	const int write_length = 8;	/*  8 bit write lengths to eeprom */
-
-	/*  enable read/write to eeprom */
-	devpriv->cmd5 &= ~CMD5_EEPROMCS;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-	devpriv->cmd5 |= (CMD5_EEPROMCS | CMD5_WRTPRT);
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	/*  send write_enable instruction */
-	labpc_serial_out(dev, write_enable_instruction, write_length);
-	devpriv->cmd5 &= ~CMD5_EEPROMCS;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	/*  send write instruction */
-	devpriv->cmd5 |= CMD5_EEPROMCS;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-	labpc_serial_out(dev, write_instruction, write_length);
-	/*  send 8 bit address to write to */
-	labpc_serial_out(dev, address, write_length);
-	/*  write value */
-	labpc_serial_out(dev, value, write_length);
-	devpriv->cmd5 &= ~CMD5_EEPROMCS;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	/*  disable read/write to eeprom */
-	devpriv->cmd5 &= ~(CMD5_EEPROMCS | CMD5_WRTPRT);
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-}
-
-/* writes to 8 bit calibration dacs */
-static void write_caldac(struct comedi_device *dev, unsigned int channel,
-			 unsigned int value)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	/*  clear caldac load bit and make sure we don't write to eeprom */
-	devpriv->cmd5 &= ~(CMD5_CALDACLD | CMD5_EEPROMCS | CMD5_WRTPRT);
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-
-	/*  write 4 bit channel */
-	labpc_serial_out(dev, channel, 4);
-	/*  write 8 bit caldac value */
-	labpc_serial_out(dev, value, 8);
-
-	/*  set and clear caldac bit to load caldac value */
-	devpriv->cmd5 |= CMD5_CALDACLD;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-	devpriv->cmd5 &= ~CMD5_CALDACLD;
-	udelay(1);
-	devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-}
-
-static int labpc_calib_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/*
-	 * Only write the last data value to the caldac. Preceding
-	 * data would be overwritten anyway.
-	 */
-	if (insn->n > 0) {
-		unsigned int val = data[insn->n - 1];
-
-		if (s->readback[chan] != val) {
-			write_caldac(dev, chan, val);
-			s->readback[chan] = val;
-		}
-	}
-
-	return insn->n;
-}
-
-static int labpc_eeprom_ready(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned long context)
-{
-	unsigned int status;
-
-	/* make sure there isn't already a write in progress */
-	status = labpc_eeprom_read_status(dev);
-	if ((status & 0x1) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int labpc_eeprom_insn_write(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int ret;
-
-	/* only allow writes to user area of eeprom */
-	if (chan < 16 || chan > 127)
-		return -EINVAL;
-
-	/*
-	 * Only write the last data value to the eeprom. Preceding
-	 * data would be overwritten anyway.
-	 */
-	if (insn->n > 0) {
-		unsigned int val = data[insn->n - 1];
-
-		ret = comedi_timeout(dev, s, insn, labpc_eeprom_ready, 0);
-		if (ret)
-			return ret;
-
-		labpc_eeprom_write(dev, chan, val);
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-int labpc_common_attach(struct comedi_device *dev,
-			unsigned int irq, unsigned long isr_flags)
-{
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	struct labpc_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	if (dev->mmio) {
-		devpriv->read_byte = labpc_readb;
-		devpriv->write_byte = labpc_writeb;
-	} else {
-		devpriv->read_byte = labpc_inb;
-		devpriv->write_byte = labpc_outb;
-	}
-
-	/* initialize board's command registers */
-	devpriv->write_byte(dev, devpriv->cmd1, CMD1_REG);
-	devpriv->write_byte(dev, devpriv->cmd2, CMD2_REG);
-	devpriv->write_byte(dev, devpriv->cmd3, CMD3_REG);
-	devpriv->write_byte(dev, devpriv->cmd4, CMD4_REG);
-	if (board->is_labpc1200) {
-		devpriv->write_byte(dev, devpriv->cmd5, CMD5_REG);
-		devpriv->write_byte(dev, devpriv->cmd6, CMD6_REG);
-	}
-
-	if (irq) {
-		ret = request_irq(irq, labpc_interrupt, isr_flags,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = irq;
-	}
-
-	if (dev->mmio) {
-		dev->pacer = comedi_8254_mm_init(dev->mmio + COUNTER_B_BASE_REG,
-						 I8254_OSC_BASE_2MHZ,
-						 I8254_IO8, 0);
-		devpriv->counter = comedi_8254_mm_init(dev->mmio +
-						       COUNTER_A_BASE_REG,
-						       I8254_OSC_BASE_2MHZ,
-						       I8254_IO8, 0);
-	} else {
-		dev->pacer = comedi_8254_init(dev->iobase + COUNTER_B_BASE_REG,
-					      I8254_OSC_BASE_2MHZ,
-					      I8254_IO8, 0);
-		devpriv->counter = comedi_8254_init(dev->iobase +
-						    COUNTER_A_BASE_REG,
-						    I8254_OSC_BASE_2MHZ,
-						    I8254_IO8, 0);
-	}
-	if (!dev->pacer || !devpriv->counter)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 5);
-	if (ret)
-		return ret;
-
-	/* analog input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_COMMON | SDF_DIFF;
-	s->n_chan	= 8;
-	s->len_chanlist	= 8;
-	s->maxdata	= 0x0fff;
-	s->range_table	= board->is_labpc1200 ?
-			  &range_labpc_1200_ai : &range_labpc_plus_ai;
-	s->insn_read	= labpc_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->do_cmd	= labpc_ai_cmd;
-		s->do_cmdtest	= labpc_ai_cmdtest;
-		s->cancel	= labpc_cancel;
-	}
-
-	/* analog output */
-	s = &dev->subdevices[1];
-	if (board->has_ao) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_GROUND;
-		s->n_chan	= NUM_AO_CHAN;
-		s->maxdata	= 0x0fff;
-		s->range_table	= &range_labpc_ao;
-		s->insn_write	= labpc_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		/* initialize analog outputs to a known value */
-		for (i = 0; i < s->n_chan; i++)
-			labpc_ao_write(dev, s, i, s->maxdata / 2);
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* 8255 dio */
-	s = &dev->subdevices[2];
-	if (dev->mmio)
-		ret = subdev_8255_mm_init(dev, s, NULL, DIO_BASE_REG);
-	else
-		ret = subdev_8255_init(dev, s, NULL, DIO_BASE_REG);
-	if (ret)
-		return ret;
-
-	/*  calibration subdevices for boards that have one */
-	s = &dev->subdevices[3];
-	if (board->is_labpc1200) {
-		s->type		= COMEDI_SUBD_CALIB;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-		s->n_chan	= 16;
-		s->maxdata	= 0xff;
-		s->insn_write	= labpc_calib_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		for (i = 0; i < s->n_chan; i++) {
-			write_caldac(dev, i, s->maxdata / 2);
-			s->readback[i] = s->maxdata / 2;
-		}
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* EEPROM */
-	s = &dev->subdevices[4];
-	if (board->is_labpc1200) {
-		s->type		= COMEDI_SUBD_MEMORY;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-		s->n_chan	= EEPROM_SIZE;
-		s->maxdata	= 0xff;
-		s->insn_write	= labpc_eeprom_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		for (i = 0; i < s->n_chan; i++)
-			s->readback[i] = labpc_eeprom_read(dev, i);
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(labpc_common_attach);
-
-void labpc_common_detach(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	if (devpriv)
-		kfree(devpriv->counter);
-}
-EXPORT_SYMBOL_GPL(labpc_common_detach);
-
-static int __init labpc_common_init(void)
-{
-	return 0;
-}
-module_init(labpc_common_init);
-
-static void __exit labpc_common_exit(void)
-{
-}
-module_exit(labpc_common_exit);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi helper for ni_labpc, ni_labpc_pci, ni_labpc_cs");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c
deleted file mode 100644
index a1c69ac075d5..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc_cs.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
-    comedi/drivers/ni_labpc_cs.c
-    Driver for National Instruments daqcard-1200 boards
-    Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    PCMCIA crap is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13
-    from the pcmcia package.
-    The initial developer of the pcmcia dummy_cs.c code is David A. Hinds
-    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
-    are Copyright (C) 1999 David A. Hinds.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_labpc_cs
-Description: National Instruments Lab-PC (& compatibles)
-Author: Frank Mori Hess <fmhess@users.sourceforge.net>
-Devices: [National Instruments] DAQCard-1200 (daqcard-1200)
-Status: works
-
-Thanks go to Fredrik Lingvall for much testing and perseverance in
-helping to debug daqcard-1200 support.
-
-The 1200 series boards have onboard calibration dacs for correcting
-analog input/output offsets and gains.  The proper settings for these
-caldacs are stored on the board's eeprom.  To read the caldac values
-from the eeprom and store them into a file that can be then be used by
-comedilib, use the comedi_calibrate program.
-
-Configuration options:
-  none
-
-The daqcard-1200 has quirky chanlist requirements
-when scanning multiple channels.  Multiple channel scan
-sequence must start at highest channel, then decrement down to
-channel 0.  Chanlists consisting of all one channel
-are also legal, and allow you to pace conversions in bursts.
-
-*/
-
-/*
-
-NI manuals:
-340988a (daqcard-1200)
-
-*/
-
-#include <linux/module.h>
-
-#include "../comedi_pcmcia.h"
-
-#include "ni_labpc.h"
-
-static const struct labpc_boardinfo labpc_cs_boards[] = {
-	{
-		.name			= "daqcard-1200",
-		.ai_speed		= 10000,
-		.has_ao			= 1,
-		.is_labpc1200		= 1,
-	},
-};
-
-static int labpc_cs_auto_attach(struct comedi_device *dev,
-				unsigned long context)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	int ret;
-
-	/* The ni_labpc driver needs the board_ptr */
-	dev->board_ptr = &labpc_cs_boards[0];
-
-	link->config_flags |= CONF_AUTO_SET_IO |
-			      CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
-	ret = comedi_pcmcia_enable(dev, NULL);
-	if (ret)
-		return ret;
-	dev->iobase = link->resource[0]->start;
-
-	if (!link->irq)
-		return -EINVAL;
-
-	return labpc_common_attach(dev, link->irq, IRQF_SHARED);
-}
-
-static void labpc_cs_detach(struct comedi_device *dev)
-{
-	labpc_common_detach(dev);
-	comedi_pcmcia_disable(dev);
-}
-
-static struct comedi_driver driver_labpc_cs = {
-	.driver_name	= "ni_labpc_cs",
-	.module		= THIS_MODULE,
-	.auto_attach	= labpc_cs_auto_attach,
-	.detach		= labpc_cs_detach,
-};
-
-static int labpc_cs_attach(struct pcmcia_device *link)
-{
-	return comedi_pcmcia_auto_config(link, &driver_labpc_cs);
-}
-
-static const struct pcmcia_device_id labpc_cs_ids[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0103),	/* daqcard-1200 */
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, labpc_cs_ids);
-
-static struct pcmcia_driver labpc_cs_driver = {
-	.name		= "daqcard-1200",
-	.owner		= THIS_MODULE,
-	.id_table	= labpc_cs_ids,
-	.probe		= labpc_cs_attach,
-	.remove		= comedi_pcmcia_auto_unconfig,
-};
-module_comedi_pcmcia_driver(driver_labpc_cs, labpc_cs_driver);
-
-MODULE_DESCRIPTION("Comedi driver for National Instruments Lab-PC");
-MODULE_AUTHOR("Frank Mori Hess <fmhess@users.sourceforge.net>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_labpc_isadma.c b/drivers/staging/comedi/drivers/ni_labpc_isadma.c
deleted file mode 100644
index 29dbdf5ec25d..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc_isadma.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * comedi/drivers/ni_labpc_isadma.c
- * ISA DMA support for National Instruments Lab-PC series boards and
- * compatibles.
- *
- * Extracted from ni_labpc.c:
- * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-#include "ni_labpc.h"
-#include "ni_labpc_regs.h"
-#include "ni_labpc_isadma.h"
-
-/* size in bytes of dma buffer */
-#define LABPC_ISADMA_BUFFER_SIZE	0xff00
-
-/* utility function that suggests a dma transfer size in bytes */
-static unsigned int labpc_suggest_transfer_size(struct comedi_device *dev,
-						struct comedi_subdevice *s,
-						unsigned int maxbytes)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int sample_size = comedi_bytes_per_sample(s);
-	unsigned int size;
-	unsigned int freq;
-
-	if (cmd->convert_src == TRIG_TIMER)
-		freq = 1000000000 / cmd->convert_arg;
-	else
-		/* return some default value */
-		freq = 0xffffffff;
-
-	/* make buffer fill in no more than 1/3 second */
-	size = (freq / 3) * sample_size;
-
-	/* set a minimum and maximum size allowed */
-	if (size > maxbytes)
-		size = maxbytes;
-	else if (size < sample_size)
-		size = sample_size;
-
-	return size;
-}
-
-void labpc_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct labpc_private *devpriv = dev->private;
-	struct comedi_isadma_desc *desc = &devpriv->dma->desc[0];
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int sample_size = comedi_bytes_per_sample(s);
-
-	/* set appropriate size of transfer */
-	desc->size = labpc_suggest_transfer_size(dev, s, desc->maxsize);
-	if (cmd->stop_src == TRIG_COUNT &&
-	    devpriv->count * sample_size < desc->size)
-		desc->size = devpriv->count * sample_size;
-
-	comedi_isadma_program(desc);
-
-	/* set CMD3 bits for caller to enable DMA and interrupt */
-	devpriv->cmd3 |= (CMD3_DMAEN | CMD3_DMATCINTEN);
-}
-EXPORT_SYMBOL_GPL(labpc_setup_dma);
-
-void labpc_drain_dma(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-	struct comedi_isadma_desc *desc = &devpriv->dma->desc[0];
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int max_samples = comedi_bytes_to_samples(s, desc->size);
-	unsigned int residue;
-	unsigned int nsamples;
-	unsigned int leftover;
-
-	/*
-	 * residue is the number of bytes left to be done on the dma
-	 * transfer.  It should always be zero at this point unless
-	 * the stop_src is set to external triggering.
-	 */
-	residue = comedi_isadma_disable(desc->chan);
-
-	/*
-	 * Figure out how many samples to read for this transfer and
-	 * how many will be stored for next time.
-	 */
-	nsamples = max_samples - comedi_bytes_to_samples(s, residue);
-	if (cmd->stop_src == TRIG_COUNT) {
-		if (devpriv->count <= nsamples) {
-			nsamples = devpriv->count;
-			leftover = 0;
-		} else {
-			leftover = devpriv->count - nsamples;
-			if (leftover > max_samples)
-				leftover = max_samples;
-		}
-		devpriv->count -= nsamples;
-	} else {
-		leftover = max_samples;
-	}
-	desc->size = comedi_samples_to_bytes(s, leftover);
-
-	comedi_buf_write_samples(s, desc->virt_addr, nsamples);
-}
-EXPORT_SYMBOL_GPL(labpc_drain_dma);
-
-static void handle_isa_dma(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-	struct comedi_isadma_desc *desc = &devpriv->dma->desc[0];
-
-	labpc_drain_dma(dev);
-
-	if (desc->size)
-		comedi_isadma_program(desc);
-
-	/* clear dma tc interrupt */
-	devpriv->write_byte(dev, 0x1, DMATC_CLEAR_REG);
-}
-
-void labpc_handle_dma_status(struct comedi_device *dev)
-{
-	const struct labpc_boardinfo *board = dev->board_ptr;
-	struct labpc_private *devpriv = dev->private;
-
-	/*
-	 * if a dma terminal count of external stop trigger
-	 * has occurred
-	 */
-	if (devpriv->stat1 & STAT1_GATA0 ||
-	    (board->is_labpc1200 && devpriv->stat2 & STAT2_OUTA1))
-		handle_isa_dma(dev);
-}
-EXPORT_SYMBOL_GPL(labpc_handle_dma_status);
-
-void labpc_init_dma_chan(struct comedi_device *dev, unsigned int dma_chan)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	/* only DMA channels 3 and 1 are valid */
-	if (dma_chan != 1 && dma_chan != 3)
-		return;
-
-	/* DMA uses 1 buffer */
-	devpriv->dma = comedi_isadma_alloc(dev, 1, dma_chan, dma_chan,
-					   LABPC_ISADMA_BUFFER_SIZE,
-					   COMEDI_ISADMA_READ);
-}
-EXPORT_SYMBOL_GPL(labpc_init_dma_chan);
-
-void labpc_free_dma_chan(struct comedi_device *dev)
-{
-	struct labpc_private *devpriv = dev->private;
-
-	if (devpriv)
-		comedi_isadma_free(devpriv->dma);
-}
-EXPORT_SYMBOL_GPL(labpc_free_dma_chan);
-
-static int __init ni_labpc_isadma_init_module(void)
-{
-	return 0;
-}
-module_init(ni_labpc_isadma_init_module);
-
-static void __exit ni_labpc_isadma_cleanup_module(void)
-{
-}
-module_exit(ni_labpc_isadma_cleanup_module);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi NI Lab-PC ISA DMA support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_labpc_isadma.h b/drivers/staging/comedi/drivers/ni_labpc_isadma.h
deleted file mode 100644
index b8a1b0ee6290..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc_isadma.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * ni_labpc ISA DMA support.
-*/
-
-#ifndef _NI_LABPC_ISADMA_H
-#define _NI_LABPC_ISADMA_H
-
-#if IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA)
-
-void labpc_init_dma_chan(struct comedi_device *dev, unsigned int dma_chan);
-void labpc_free_dma_chan(struct comedi_device *dev);
-void labpc_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s);
-void labpc_drain_dma(struct comedi_device *dev);
-void labpc_handle_dma_status(struct comedi_device *dev);
-
-#else
-
-static inline void labpc_init_dma_chan(struct comedi_device *dev,
-				       unsigned int dma_chan)
-{
-}
-
-static inline void labpc_free_dma_chan(struct comedi_device *dev)
-{
-}
-
-static inline void labpc_setup_dma(struct comedi_device *dev,
-				   struct comedi_subdevice *s)
-{
-}
-
-static inline void labpc_drain_dma(struct comedi_device *dev)
-{
-}
-
-static inline void labpc_handle_dma_status(struct comedi_device *dev)
-{
-}
-
-#endif
-
-#endif /* _NI_LABPC_ISADMA_H */
diff --git a/drivers/staging/comedi/drivers/ni_labpc_pci.c b/drivers/staging/comedi/drivers/ni_labpc_pci.c
deleted file mode 100644
index 77d403801db5..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc_pci.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * comedi/drivers/ni_labpc_pci.c
- * Driver for National Instruments Lab-PC PCI-1200
- * Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: ni_labpc_pci
- * Description: National Instruments Lab-PC PCI-1200
- * Devices: [National Instruments] PCI-1200 (ni_pci-1200)
- * Author: Frank Mori Hess <fmhess@users.sourceforge.net>
- * Status: works
- *
- * This is the PCI-specific support split off from the ni_labpc driver.
- *
- * Configuration Options: not applicable, uses PCI auto config
- *
- * NI manuals:
- * 340914a (pci-1200)
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "ni_labpc.h"
-
-enum labpc_pci_boardid {
-	BOARD_NI_PCI1200,
-};
-
-static const struct labpc_boardinfo labpc_pci_boards[] = {
-	[BOARD_NI_PCI1200] = {
-		.name			= "ni_pci-1200",
-		.ai_speed		= 10000,
-		.ai_scan_up		= 1,
-		.has_ao			= 1,
-		.is_labpc1200		= 1,
-	},
-};
-
-/* ripped from mite.h and mite_setup2() to avoid mite dependency */
-#define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
-#define WENAB		(1 << 7) /* window enable */
-
-static int labpc_pci_mite_init(struct pci_dev *pcidev)
-{
-	void __iomem *mite_base;
-	u32 main_phys_addr;
-
-	/* ioremap the MITE registers (BAR 0) temporarily */
-	mite_base = pci_ioremap_bar(pcidev, 0);
-	if (!mite_base)
-		return -ENOMEM;
-
-	/* set data window to main registers (BAR 1) */
-	main_phys_addr = pci_resource_start(pcidev, 1);
-	writel(main_phys_addr | WENAB, mite_base + MITE_IODWBSR);
-
-	/* finished with MITE registers */
-	iounmap(mite_base);
-	return 0;
-}
-
-static int labpc_pci_auto_attach(struct comedi_device *dev,
-				 unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct labpc_boardinfo *board = NULL;
-	int ret;
-
-	if (context < ARRAY_SIZE(labpc_pci_boards))
-		board = &labpc_pci_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	ret = labpc_pci_mite_init(pcidev);
-	if (ret)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 1);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	return labpc_common_attach(dev, pcidev->irq, IRQF_SHARED);
-}
-
-static void labpc_pci_detach(struct comedi_device *dev)
-{
-	labpc_common_detach(dev);
-	comedi_pci_detach(dev);
-}
-
-static struct comedi_driver labpc_pci_comedi_driver = {
-	.driver_name	= "labpc_pci",
-	.module		= THIS_MODULE,
-	.auto_attach	= labpc_pci_auto_attach,
-	.detach		= labpc_pci_detach,
-};
-
-static const struct pci_device_id labpc_pci_table[] = {
-	{ PCI_VDEVICE(NI, 0x161), BOARD_NI_PCI1200 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, labpc_pci_table);
-
-static int labpc_pci_probe(struct pci_dev *dev,
-			   const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &labpc_pci_comedi_driver,
-				      id->driver_data);
-}
-
-static struct pci_driver labpc_pci_driver = {
-	.name		= "labpc_pci",
-	.id_table	= labpc_pci_table,
-	.probe		= labpc_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(labpc_pci_comedi_driver, labpc_pci_driver);
-
-MODULE_DESCRIPTION("Comedi: National Instruments Lab-PC PCI-1200 driver");
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_labpc_regs.h b/drivers/staging/comedi/drivers/ni_labpc_regs.h
deleted file mode 100644
index 2a274a3e4e73..000000000000
--- a/drivers/staging/comedi/drivers/ni_labpc_regs.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * ni_labpc register definitions.
-*/
-
-#ifndef _NI_LABPC_REGS_H
-#define _NI_LABPC_REGS_H
-
-/*
- * Register map (all registers are 8-bit)
- */
-#define STAT1_REG		0x00	/* R: Status 1 reg */
-#define STAT1_DAVAIL		(1 << 0)
-#define STAT1_OVERRUN		(1 << 1)
-#define STAT1_OVERFLOW		(1 << 2)
-#define STAT1_CNTINT		(1 << 3)
-#define STAT1_GATA0		(1 << 5)
-#define STAT1_EXTGATA0		(1 << 6)
-#define CMD1_REG		0x00	/* W: Command 1 reg */
-#define CMD1_MA(x)		(((x) & 0x7) << 0)
-#define CMD1_TWOSCMP		(1 << 3)
-#define CMD1_GAIN(x)		(((x) & 0x7) << 4)
-#define CMD1_SCANEN		(1 << 7)
-#define CMD2_REG		0x01	/* W: Command 2 reg */
-#define CMD2_PRETRIG		(1 << 0)
-#define CMD2_HWTRIG		(1 << 1)
-#define CMD2_SWTRIG		(1 << 2)
-#define CMD2_TBSEL		(1 << 3)
-#define CMD2_2SDAC0		(1 << 4)
-#define CMD2_2SDAC1		(1 << 5)
-#define CMD2_LDAC(x)		(1 << (6 + (x)))
-#define CMD3_REG		0x02	/* W: Command 3 reg */
-#define CMD3_DMAEN		(1 << 0)
-#define CMD3_DIOINTEN		(1 << 1)
-#define CMD3_DMATCINTEN		(1 << 2)
-#define CMD3_CNTINTEN		(1 << 3)
-#define CMD3_ERRINTEN		(1 << 4)
-#define CMD3_FIFOINTEN		(1 << 5)
-#define ADC_START_CONVERT_REG	0x03	/* W: Start Convert reg */
-#define DAC_LSB_REG(x)		(0x04 + 2 * (x)) /* W: DAC0/1 LSB reg */
-#define DAC_MSB_REG(x)		(0x05 + 2 * (x)) /* W: DAC0/1 MSB reg */
-#define ADC_FIFO_CLEAR_REG	0x08	/* W: A/D FIFO Clear reg */
-#define ADC_FIFO_REG		0x0a	/* R: A/D FIFO reg */
-#define DMATC_CLEAR_REG		0x0a	/* W: DMA Interrupt Clear reg */
-#define TIMER_CLEAR_REG		0x0c	/* W: Timer Interrupt Clear reg */
-#define CMD6_REG		0x0e	/* W: Command 6 reg */
-#define CMD6_NRSE		(1 << 0)
-#define CMD6_ADCUNI		(1 << 1)
-#define CMD6_DACUNI(x)		(1 << (2 + (x)))
-#define CMD6_HFINTEN		(1 << 5)
-#define CMD6_DQINTEN		(1 << 6)
-#define CMD6_SCANUP		(1 << 7)
-#define CMD4_REG		0x0f	/* W: Command 3 reg */
-#define CMD4_INTSCAN		(1 << 0)
-#define CMD4_EOIRCV		(1 << 1)
-#define CMD4_ECLKDRV		(1 << 2)
-#define CMD4_SEDIFF		(1 << 3)
-#define CMD4_ECLKRCV		(1 << 4)
-#define DIO_BASE_REG		0x10	/* R/W: 8255 DIO base reg */
-#define COUNTER_A_BASE_REG	0x14	/* R/W: 8253 Counter A base reg */
-#define COUNTER_B_BASE_REG	0x18	/* R/W: 8253 Counter B base reg */
-#define CMD5_REG		0x1c	/* W: Command 5 reg */
-#define CMD5_WRTPRT		(1 << 2)
-#define CMD5_DITHEREN		(1 << 3)
-#define CMD5_CALDACLD		(1 << 4)
-#define CMD5_SCLK		(1 << 5)
-#define CMD5_SDATA		(1 << 6)
-#define CMD5_EEPROMCS		(1 << 7)
-#define STAT2_REG		0x1d	/* R: Status 2 reg */
-#define STAT2_PROMOUT		(1 << 0)
-#define STAT2_OUTA1		(1 << 1)
-#define STAT2_FIFONHF		(1 << 2)
-#define INTERVAL_COUNT_REG	0x1e	/* W: Interval Counter Data reg */
-#define INTERVAL_STROBE_REG	0x1f	/* W: Interval Counter Strobe reg */
-
-#endif /* _NI_LABPC_REGS_H */
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
deleted file mode 100644
index 6cc304a4c59b..000000000000
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ /dev/null
@@ -1,5415 +0,0 @@
-/*
-    comedi/drivers/ni_mio_common.c
-    Hardware driver for DAQ-STC based boards
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
-    Copyright (C) 2002-2006 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-/*
-	This file is meant to be included by another file, e.g.,
-	ni_atmio.c or ni_pcimio.c.
-
-	Interrupt support originally added by Truxton Fulton
-	<trux@truxton.com>
-
-	References (from ftp://ftp.natinst.com/support/manuals):
-
-	   340747b.pdf  AT-MIO E series Register Level Programmer Manual
-	   341079b.pdf  PCI E Series RLPM
-	   340934b.pdf  DAQ-STC reference manual
-	67xx and 611x registers (from ftp://ftp.ni.com/support/daq/mhddk/documentation/)
-	release_ni611x.pdf
-	release_ni67xx.pdf
-	Other possibly relevant info:
-
-	   320517c.pdf  User manual (obsolete)
-	   320517f.pdf  User manual (new)
-	   320889a.pdf  delete
-	   320906c.pdf  maximum signal ratings
-	   321066a.pdf  about 16x
-	   321791a.pdf  discontinuation of at-mio-16e-10 rev. c
-	   321808a.pdf  about at-mio-16e-10 rev P
-	   321837a.pdf  discontinuation of at-mio-16de-10 rev d
-	   321838a.pdf  about at-mio-16de-10 rev N
-
-	ISSUES:
-
-	 - the interrupt routine needs to be cleaned up
-
-	2006-02-07: S-Series PCI-6143: Support has been added but is not
-		fully tested as yet. Terry Barnaby, BEAM Ltd.
-*/
-
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include "8255.h"
-#include "mite.h"
-
-/* A timeout count */
-#define NI_TIMEOUT 1000
-
-/* Note: this table must match the ai_gain_* definitions */
-static const short ni_gainlkup[][16] = {
-	[ai_gain_16] = {0, 1, 2, 3, 4, 5, 6, 7,
-			0x100, 0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107},
-	[ai_gain_8] = {1, 2, 4, 7, 0x101, 0x102, 0x104, 0x107},
-	[ai_gain_14] = {1, 2, 3, 4, 5, 6, 7,
-			0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107},
-	[ai_gain_4] = {0, 1, 4, 7},
-	[ai_gain_611x] = {0x00a, 0x00b, 0x001, 0x002,
-			  0x003, 0x004, 0x005, 0x006},
-	[ai_gain_622x] = {0, 1, 4, 5},
-	[ai_gain_628x] = {1, 2, 3, 4, 5, 6, 7},
-	[ai_gain_6143] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-};
-
-static const struct comedi_lrange range_ni_E_ai = {
-	16, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.25),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.05),
-		UNI_RANGE(20),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1),
-		UNI_RANGE(0.5),
-		UNI_RANGE(0.2),
-		UNI_RANGE(0.1)
-	}
-};
-
-static const struct comedi_lrange range_ni_E_ai_limited = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1)
-	}
-};
-
-static const struct comedi_lrange range_ni_E_ai_limited14 = {
-	14, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.2),
-		BIP_RANGE(0.1),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2),
-		UNI_RANGE(1),
-		UNI_RANGE(0.5),
-		UNI_RANGE(0.2),
-		UNI_RANGE(0.1)
-	}
-};
-
-static const struct comedi_lrange range_ni_E_ai_bipolar4 = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05)
-	}
-};
-
-static const struct comedi_lrange range_ni_E_ai_611x = {
-	8, {
-		BIP_RANGE(50),
-		BIP_RANGE(20),
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.2)
-	}
-};
-
-static const struct comedi_lrange range_ni_M_ai_622x = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(1),
-		BIP_RANGE(0.2)
-	}
-};
-
-static const struct comedi_lrange range_ni_M_ai_628x = {
-	7, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.2),
-		BIP_RANGE(0.1)
-	}
-};
-
-static const struct comedi_lrange range_ni_E_ao_ext = {
-	4, {
-		BIP_RANGE(10),
-		UNI_RANGE(10),
-		RANGE_ext(-1, 1),
-		RANGE_ext(0, 1)
-	}
-};
-
-static const struct comedi_lrange *const ni_range_lkup[] = {
-	[ai_gain_16] = &range_ni_E_ai,
-	[ai_gain_8] = &range_ni_E_ai_limited,
-	[ai_gain_14] = &range_ni_E_ai_limited14,
-	[ai_gain_4] = &range_ni_E_ai_bipolar4,
-	[ai_gain_611x] = &range_ni_E_ai_611x,
-	[ai_gain_622x] = &range_ni_M_ai_622x,
-	[ai_gain_628x] = &range_ni_M_ai_628x,
-	[ai_gain_6143] = &range_bipolar5
-};
-
-enum aimodes {
-	AIMODE_NONE = 0,
-	AIMODE_HALF_FULL = 1,
-	AIMODE_SCAN = 2,
-	AIMODE_SAMPLE = 3,
-};
-
-enum ni_common_subdevices {
-	NI_AI_SUBDEV,
-	NI_AO_SUBDEV,
-	NI_DIO_SUBDEV,
-	NI_8255_DIO_SUBDEV,
-	NI_UNUSED_SUBDEV,
-	NI_CALIBRATION_SUBDEV,
-	NI_EEPROM_SUBDEV,
-	NI_PFI_DIO_SUBDEV,
-	NI_CS5529_CALIBRATION_SUBDEV,
-	NI_SERIAL_SUBDEV,
-	NI_RTSI_SUBDEV,
-	NI_GPCT0_SUBDEV,
-	NI_GPCT1_SUBDEV,
-	NI_FREQ_OUT_SUBDEV,
-	NI_NUM_SUBDEVICES
-};
-static inline unsigned NI_GPCT_SUBDEV(unsigned counter_index)
-{
-	switch (counter_index) {
-	case 0:
-		return NI_GPCT0_SUBDEV;
-	case 1:
-		return NI_GPCT1_SUBDEV;
-	default:
-		break;
-	}
-	BUG();
-	return NI_GPCT0_SUBDEV;
-}
-
-enum timebase_nanoseconds {
-	TIMEBASE_1_NS = 50,
-	TIMEBASE_2_NS = 10000
-};
-
-#define SERIAL_DISABLED		0
-#define SERIAL_600NS		600
-#define SERIAL_1_2US		1200
-#define SERIAL_10US			10000
-
-static const int num_adc_stages_611x = 3;
-
-static void ni_writel(struct comedi_device *dev, uint32_t data, int reg)
-{
-	if (dev->mmio)
-		writel(data, dev->mmio + reg);
-
-	outl(data, dev->iobase + reg);
-}
-
-static void ni_writew(struct comedi_device *dev, uint16_t data, int reg)
-{
-	if (dev->mmio)
-		writew(data, dev->mmio + reg);
-
-	outw(data, dev->iobase + reg);
-}
-
-static void ni_writeb(struct comedi_device *dev, uint8_t data, int reg)
-{
-	if (dev->mmio)
-		writeb(data, dev->mmio + reg);
-
-	outb(data, dev->iobase + reg);
-}
-
-static uint32_t ni_readl(struct comedi_device *dev, int reg)
-{
-	if (dev->mmio)
-		return readl(dev->mmio + reg);
-
-	return inl(dev->iobase + reg);
-}
-
-static uint16_t ni_readw(struct comedi_device *dev, int reg)
-{
-	if (dev->mmio)
-		return readw(dev->mmio + reg);
-
-	return inw(dev->iobase + reg);
-}
-
-static uint8_t ni_readb(struct comedi_device *dev, int reg)
-{
-	if (dev->mmio)
-		return readb(dev->mmio + reg);
-
-	return inb(dev->iobase + reg);
-}
-
-/*
- * We automatically take advantage of STC registers that can be
- * read/written directly in the I/O space of the board.
- *
- * The AT-MIO and DAQCard devices map the low 8 STC registers to
- * iobase+reg*2.
- *
- * Most PCIMIO devices also map the low 8 STC registers but the
- * 611x devices map the read registers to iobase+(addr-1)*2.
- * For now non-windowed STC access is disabled if a PCIMIO device
- * is detected (devpriv->mite has been initialized).
- *
- * The M series devices do not used windowed registers for the
- * STC registers. The functions below handle the mapping of the
- * windowed STC registers to the m series register offsets.
- */
-
-struct mio_regmap {
-	unsigned int mio_reg;
-	int size;
-};
-
-static const struct mio_regmap m_series_stc_write_regmap[] = {
-	[NISTC_INTA_ACK_REG]		= { 0x104, 2 },
-	[NISTC_INTB_ACK_REG]		= { 0x106, 2 },
-	[NISTC_AI_CMD2_REG]		= { 0x108, 2 },
-	[NISTC_AO_CMD2_REG]		= { 0x10a, 2 },
-	[NISTC_G0_CMD_REG]		= { 0x10c, 2 },
-	[NISTC_G1_CMD_REG]		= { 0x10e, 2 },
-	[NISTC_AI_CMD1_REG]		= { 0x110, 2 },
-	[NISTC_AO_CMD1_REG]		= { 0x112, 2 },
-	/*
-	 * NISTC_DIO_OUT_REG maps to:
-	 * { NI_M_DIO_REG, 4 } and { NI_M_SCXI_SER_DO_REG, 1 }
-	 */
-	[NISTC_DIO_OUT_REG]		= { 0, 0 }, /* DOES NOT MAP CLEANLY */
-	[NISTC_DIO_CTRL_REG]		= { 0, 0 }, /* DOES NOT MAP CLEANLY */
-	[NISTC_AI_MODE1_REG]		= { 0x118, 2 },
-	[NISTC_AI_MODE2_REG]		= { 0x11a, 2 },
-	[NISTC_AI_SI_LOADA_REG]		= { 0x11c, 4 },
-	[NISTC_AI_SI_LOADB_REG]		= { 0x120, 4 },
-	[NISTC_AI_SC_LOADA_REG]		= { 0x124, 4 },
-	[NISTC_AI_SC_LOADB_REG]		= { 0x128, 4 },
-	[NISTC_AI_SI2_LOADA_REG]	= { 0x12c, 4 },
-	[NISTC_AI_SI2_LOADB_REG]	= { 0x130, 4 },
-	[NISTC_G0_MODE_REG]		= { 0x134, 2 },
-	[NISTC_G1_MODE_REG]		= { 0x136, 2 },
-	[NISTC_G0_LOADA_REG]		= { 0x138, 4 },
-	[NISTC_G0_LOADB_REG]		= { 0x13c, 4 },
-	[NISTC_G1_LOADA_REG]		= { 0x140, 4 },
-	[NISTC_G1_LOADB_REG]		= { 0x144, 4 },
-	[NISTC_G0_INPUT_SEL_REG]	= { 0x148, 2 },
-	[NISTC_G1_INPUT_SEL_REG]	= { 0x14a, 2 },
-	[NISTC_AO_MODE1_REG]		= { 0x14c, 2 },
-	[NISTC_AO_MODE2_REG]		= { 0x14e, 2 },
-	[NISTC_AO_UI_LOADA_REG]		= { 0x150, 4 },
-	[NISTC_AO_UI_LOADB_REG]		= { 0x154, 4 },
-	[NISTC_AO_BC_LOADA_REG]		= { 0x158, 4 },
-	[NISTC_AO_BC_LOADB_REG]		= { 0x15c, 4 },
-	[NISTC_AO_UC_LOADA_REG]		= { 0x160, 4 },
-	[NISTC_AO_UC_LOADB_REG]		= { 0x164, 4 },
-	[NISTC_CLK_FOUT_REG]		= { 0x170, 2 },
-	[NISTC_IO_BIDIR_PIN_REG]	= { 0x172, 2 },
-	[NISTC_RTSI_TRIG_DIR_REG]	= { 0x174, 2 },
-	[NISTC_INT_CTRL_REG]		= { 0x176, 2 },
-	[NISTC_AI_OUT_CTRL_REG]		= { 0x178, 2 },
-	[NISTC_ATRIG_ETC_REG]		= { 0x17a, 2 },
-	[NISTC_AI_START_STOP_REG]	= { 0x17c, 2 },
-	[NISTC_AI_TRIG_SEL_REG]		= { 0x17e, 2 },
-	[NISTC_AI_DIV_LOADA_REG]	= { 0x180, 4 },
-	[NISTC_AO_START_SEL_REG]	= { 0x184, 2 },
-	[NISTC_AO_TRIG_SEL_REG]		= { 0x186, 2 },
-	[NISTC_G0_AUTOINC_REG]		= { 0x188, 2 },
-	[NISTC_G1_AUTOINC_REG]		= { 0x18a, 2 },
-	[NISTC_AO_MODE3_REG]		= { 0x18c, 2 },
-	[NISTC_RESET_REG]		= { 0x190, 2 },
-	[NISTC_INTA_ENA_REG]		= { 0x192, 2 },
-	[NISTC_INTA2_ENA_REG]		= { 0, 0 }, /* E-Series only */
-	[NISTC_INTB_ENA_REG]		= { 0x196, 2 },
-	[NISTC_INTB2_ENA_REG]		= { 0, 0 }, /* E-Series only */
-	[NISTC_AI_PERSONAL_REG]		= { 0x19a, 2 },
-	[NISTC_AO_PERSONAL_REG]		= { 0x19c, 2 },
-	[NISTC_RTSI_TRIGA_OUT_REG]	= { 0x19e, 2 },
-	[NISTC_RTSI_TRIGB_OUT_REG]	= { 0x1a0, 2 },
-	[NISTC_RTSI_BOARD_REG]		= { 0, 0 }, /* Unknown */
-	[NISTC_CFG_MEM_CLR_REG]		= { 0x1a4, 2 },
-	[NISTC_ADC_FIFO_CLR_REG]	= { 0x1a6, 2 },
-	[NISTC_DAC_FIFO_CLR_REG]	= { 0x1a8, 2 },
-	[NISTC_AO_OUT_CTRL_REG]		= { 0x1ac, 2 },
-	[NISTC_AI_MODE3_REG]		= { 0x1ae, 2 },
-};
-
-static void m_series_stc_write(struct comedi_device *dev,
-			       unsigned int data, unsigned int reg)
-{
-	const struct mio_regmap *regmap;
-
-	if (reg < ARRAY_SIZE(m_series_stc_write_regmap)) {
-		regmap = &m_series_stc_write_regmap[reg];
-	} else {
-		dev_warn(dev->class_dev, "%s: unhandled register=0x%x\n",
-			 __func__, reg);
-		return;
-	}
-
-	switch (regmap->size) {
-	case 4:
-		ni_writel(dev, data, regmap->mio_reg);
-		break;
-	case 2:
-		ni_writew(dev, data, regmap->mio_reg);
-		break;
-	default:
-		dev_warn(dev->class_dev, "%s: unmapped register=0x%x\n",
-			 __func__, reg);
-		break;
-	}
-}
-
-static const struct mio_regmap m_series_stc_read_regmap[] = {
-	[NISTC_AI_STATUS1_REG]		= { 0x104, 2 },
-	[NISTC_AO_STATUS1_REG]		= { 0x106, 2 },
-	[NISTC_G01_STATUS_REG]		= { 0x108, 2 },
-	[NISTC_AI_STATUS2_REG]		= { 0, 0 }, /* Unknown */
-	[NISTC_AO_STATUS2_REG]		= { 0x10c, 2 },
-	[NISTC_DIO_IN_REG]		= { 0, 0 }, /* Unknown */
-	[NISTC_G0_HW_SAVE_REG]		= { 0x110, 4 },
-	[NISTC_G1_HW_SAVE_REG]		= { 0x114, 4 },
-	[NISTC_G0_SAVE_REG]		= { 0x118, 4 },
-	[NISTC_G1_SAVE_REG]		= { 0x11c, 4 },
-	[NISTC_AO_UI_SAVE_REG]		= { 0x120, 4 },
-	[NISTC_AO_BC_SAVE_REG]		= { 0x124, 4 },
-	[NISTC_AO_UC_SAVE_REG]		= { 0x128, 4 },
-	[NISTC_STATUS1_REG]		= { 0x136, 2 },
-	[NISTC_DIO_SERIAL_IN_REG]	= { 0x009, 1 },
-	[NISTC_STATUS2_REG]		= { 0x13a, 2 },
-	[NISTC_AI_SI_SAVE_REG]		= { 0x180, 4 },
-	[NISTC_AI_SC_SAVE_REG]		= { 0x184, 4 },
-};
-
-static unsigned int m_series_stc_read(struct comedi_device *dev,
-				      unsigned int reg)
-{
-	const struct mio_regmap *regmap;
-
-	if (reg < ARRAY_SIZE(m_series_stc_read_regmap)) {
-		regmap = &m_series_stc_read_regmap[reg];
-	} else {
-		dev_warn(dev->class_dev, "%s: unhandled register=0x%x\n",
-			 __func__, reg);
-		return 0;
-	}
-
-	switch (regmap->size) {
-	case 4:
-		return ni_readl(dev, regmap->mio_reg);
-	case 2:
-		return ni_readw(dev, regmap->mio_reg);
-	case 1:
-		return ni_readb(dev, regmap->mio_reg);
-	default:
-		dev_warn(dev->class_dev, "%s: unmapped register=0x%x\n",
-			 __func__, reg);
-		return 0;
-	}
-}
-
-static void ni_stc_writew(struct comedi_device *dev, uint16_t data, int reg)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	if (devpriv->is_m_series) {
-		m_series_stc_write(dev, data, reg);
-	} else {
-		spin_lock_irqsave(&devpriv->window_lock, flags);
-		if (!devpriv->mite && reg < 8) {
-			ni_writew(dev, data, reg * 2);
-		} else {
-			ni_writew(dev, reg, NI_E_STC_WINDOW_ADDR_REG);
-			ni_writew(dev, data, NI_E_STC_WINDOW_DATA_REG);
-		}
-		spin_unlock_irqrestore(&devpriv->window_lock, flags);
-	}
-}
-
-static void ni_stc_writel(struct comedi_device *dev, uint32_t data, int reg)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (devpriv->is_m_series) {
-		m_series_stc_write(dev, data, reg);
-	} else {
-		ni_stc_writew(dev, data >> 16, reg);
-		ni_stc_writew(dev, data & 0xffff, reg + 1);
-	}
-}
-
-static uint16_t ni_stc_readw(struct comedi_device *dev, int reg)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-	uint16_t val;
-
-	if (devpriv->is_m_series) {
-		val = m_series_stc_read(dev, reg);
-	} else {
-		spin_lock_irqsave(&devpriv->window_lock, flags);
-		if (!devpriv->mite && reg < 8) {
-			val = ni_readw(dev, reg * 2);
-		} else {
-			ni_writew(dev, reg, NI_E_STC_WINDOW_ADDR_REG);
-			val = ni_readw(dev, NI_E_STC_WINDOW_DATA_REG);
-		}
-		spin_unlock_irqrestore(&devpriv->window_lock, flags);
-	}
-	return val;
-}
-
-static uint32_t ni_stc_readl(struct comedi_device *dev, int reg)
-{
-	struct ni_private *devpriv = dev->private;
-	uint32_t val;
-
-	if (devpriv->is_m_series) {
-		val = m_series_stc_read(dev, reg);
-	} else {
-		val = ni_stc_readw(dev, reg) << 16;
-		val |= ni_stc_readw(dev, reg + 1);
-	}
-	return val;
-}
-
-static inline void ni_set_bitfield(struct comedi_device *dev, int reg,
-				   unsigned bit_mask, unsigned bit_values)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
-	switch (reg) {
-	case NISTC_INTA_ENA_REG:
-		devpriv->int_a_enable_reg &= ~bit_mask;
-		devpriv->int_a_enable_reg |= bit_values & bit_mask;
-		ni_stc_writew(dev, devpriv->int_a_enable_reg, reg);
-		break;
-	case NISTC_INTB_ENA_REG:
-		devpriv->int_b_enable_reg &= ~bit_mask;
-		devpriv->int_b_enable_reg |= bit_values & bit_mask;
-		ni_stc_writew(dev, devpriv->int_b_enable_reg, reg);
-		break;
-	case NISTC_IO_BIDIR_PIN_REG:
-		devpriv->io_bidirection_pin_reg &= ~bit_mask;
-		devpriv->io_bidirection_pin_reg |= bit_values & bit_mask;
-		ni_stc_writew(dev, devpriv->io_bidirection_pin_reg, reg);
-		break;
-	case NI_E_DMA_AI_AO_SEL_REG:
-		devpriv->ai_ao_select_reg &= ~bit_mask;
-		devpriv->ai_ao_select_reg |= bit_values & bit_mask;
-		ni_writeb(dev, devpriv->ai_ao_select_reg, reg);
-		break;
-	case NI_E_DMA_G0_G1_SEL_REG:
-		devpriv->g0_g1_select_reg &= ~bit_mask;
-		devpriv->g0_g1_select_reg |= bit_values & bit_mask;
-		ni_writeb(dev, devpriv->g0_g1_select_reg, reg);
-		break;
-	default:
-		dev_err(dev->class_dev, "called with invalid register %d\n",
-			reg);
-		break;
-	}
-	mmiowb();
-	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
-}
-
-#ifdef PCIDMA
-/* DMA channel setup */
-static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel)
-{
-	if (channel < 4)
-		return 1 << channel;
-	if (channel == 4)
-		return 0x3;
-	if (channel == 5)
-		return 0x5;
-	BUG();
-	return 0;
-}
-
-/* negative channel means no channel */
-static inline void ni_set_ai_dma_channel(struct comedi_device *dev, int channel)
-{
-	unsigned bits = 0;
-
-	if (channel >= 0)
-		bits = ni_stc_dma_channel_select_bitfield(channel);
-
-	ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG,
-			NI_E_DMA_AI_SEL_MASK, NI_E_DMA_AI_SEL(bits));
-}
-
-/* negative channel means no channel */
-static inline void ni_set_ao_dma_channel(struct comedi_device *dev, int channel)
-{
-	unsigned bits = 0;
-
-	if (channel >= 0)
-		bits = ni_stc_dma_channel_select_bitfield(channel);
-
-	ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG,
-			NI_E_DMA_AO_SEL_MASK, NI_E_DMA_AO_SEL(bits));
-}
-
-/* negative channel means no channel */
-static inline void ni_set_gpct_dma_channel(struct comedi_device *dev,
-					   unsigned gpct_index,
-					   int channel)
-{
-	unsigned bits = 0;
-
-	if (channel >= 0)
-		bits = ni_stc_dma_channel_select_bitfield(channel);
-
-	ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG,
-			NI_E_DMA_G0_G1_SEL_MASK(gpct_index),
-			NI_E_DMA_G0_G1_SEL(gpct_index, bits));
-}
-
-/* negative mite_channel means no channel */
-static inline void ni_set_cdo_dma_channel(struct comedi_device *dev,
-					  int mite_channel)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-	unsigned bits;
-
-	spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags);
-	devpriv->cdio_dma_select_reg &= ~NI_M_CDIO_DMA_SEL_CDO_MASK;
-	if (mite_channel >= 0) {
-		/*
-		 * XXX just guessing ni_stc_dma_channel_select_bitfield()
-		 * returns the right bits, under the assumption the cdio dma
-		 * selection works just like ai/ao/gpct.
-		 * Definitely works for dma channels 0 and 1.
-		 */
-		bits = ni_stc_dma_channel_select_bitfield(mite_channel);
-		devpriv->cdio_dma_select_reg |= NI_M_CDIO_DMA_SEL_CDO(bits);
-	}
-	ni_writeb(dev, devpriv->cdio_dma_select_reg, NI_M_CDIO_DMA_SEL_REG);
-	mmiowb();
-	spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags);
-}
-
-static int ni_request_ai_mite_channel(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	BUG_ON(devpriv->ai_mite_chan);
-	devpriv->ai_mite_chan =
-	    mite_request_channel(devpriv->mite, devpriv->ai_mite_ring);
-	if (!devpriv->ai_mite_chan) {
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-		dev_err(dev->class_dev,
-			"failed to reserve mite dma channel for analog input\n");
-		return -EBUSY;
-	}
-	devpriv->ai_mite_chan->dir = COMEDI_INPUT;
-	ni_set_ai_dma_channel(dev, devpriv->ai_mite_chan->channel);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-	return 0;
-}
-
-static int ni_request_ao_mite_channel(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	BUG_ON(devpriv->ao_mite_chan);
-	devpriv->ao_mite_chan =
-	    mite_request_channel(devpriv->mite, devpriv->ao_mite_ring);
-	if (!devpriv->ao_mite_chan) {
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-		dev_err(dev->class_dev,
-			"failed to reserve mite dma channel for analog outut\n");
-		return -EBUSY;
-	}
-	devpriv->ao_mite_chan->dir = COMEDI_OUTPUT;
-	ni_set_ao_dma_channel(dev, devpriv->ao_mite_chan->channel);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-	return 0;
-}
-
-static int ni_request_gpct_mite_channel(struct comedi_device *dev,
-					unsigned gpct_index,
-					enum comedi_io_direction direction)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-	struct mite_channel *mite_chan;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	BUG_ON(devpriv->counter_dev->counters[gpct_index].mite_chan);
-	mite_chan =
-	    mite_request_channel(devpriv->mite,
-				 devpriv->gpct_mite_ring[gpct_index]);
-	if (!mite_chan) {
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-		dev_err(dev->class_dev,
-			"failed to reserve mite dma channel for counter\n");
-		return -EBUSY;
-	}
-	mite_chan->dir = direction;
-	ni_tio_set_mite_channel(&devpriv->counter_dev->counters[gpct_index],
-				mite_chan);
-	ni_set_gpct_dma_channel(dev, gpct_index, mite_chan->channel);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-	return 0;
-}
-
-#endif /*  PCIDMA */
-
-static int ni_request_cdo_mite_channel(struct comedi_device *dev)
-{
-#ifdef PCIDMA
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	BUG_ON(devpriv->cdo_mite_chan);
-	devpriv->cdo_mite_chan =
-	    mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring);
-	if (!devpriv->cdo_mite_chan) {
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-		dev_err(dev->class_dev,
-			"failed to reserve mite dma channel for correlated digital output\n");
-		return -EBUSY;
-	}
-	devpriv->cdo_mite_chan->dir = COMEDI_OUTPUT;
-	ni_set_cdo_dma_channel(dev, devpriv->cdo_mite_chan->channel);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-#endif /*  PCIDMA */
-	return 0;
-}
-
-static void ni_release_ai_mite_channel(struct comedi_device *dev)
-{
-#ifdef PCIDMA
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ai_mite_chan) {
-		ni_set_ai_dma_channel(dev, -1);
-		mite_release_channel(devpriv->ai_mite_chan);
-		devpriv->ai_mite_chan = NULL;
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-#endif /*  PCIDMA */
-}
-
-static void ni_release_ao_mite_channel(struct comedi_device *dev)
-{
-#ifdef PCIDMA
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ao_mite_chan) {
-		ni_set_ao_dma_channel(dev, -1);
-		mite_release_channel(devpriv->ao_mite_chan);
-		devpriv->ao_mite_chan = NULL;
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-#endif /*  PCIDMA */
-}
-
-#ifdef PCIDMA
-static void ni_release_gpct_mite_channel(struct comedi_device *dev,
-					 unsigned gpct_index)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->counter_dev->counters[gpct_index].mite_chan) {
-		struct mite_channel *mite_chan =
-		    devpriv->counter_dev->counters[gpct_index].mite_chan;
-
-		ni_set_gpct_dma_channel(dev, gpct_index, -1);
-		ni_tio_set_mite_channel(&devpriv->
-					counter_dev->counters[gpct_index],
-					NULL);
-		mite_release_channel(mite_chan);
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-}
-#endif /*  PCIDMA */
-
-static void ni_release_cdo_mite_channel(struct comedi_device *dev)
-{
-#ifdef PCIDMA
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->cdo_mite_chan) {
-		ni_set_cdo_dma_channel(dev, -1);
-		mite_release_channel(devpriv->cdo_mite_chan);
-		devpriv->cdo_mite_chan = NULL;
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-#endif /*  PCIDMA */
-}
-
-#ifdef PCIDMA
-static void ni_e_series_enable_second_irq(struct comedi_device *dev,
-					  unsigned gpct_index, short enable)
-{
-	struct ni_private *devpriv = dev->private;
-	uint16_t val = 0;
-	int reg;
-
-	if (devpriv->is_m_series || gpct_index > 1)
-		return;
-
-	/*
-	 * e-series boards use the second irq signals to generate
-	 * dma requests for their counters
-	 */
-	if (gpct_index == 0) {
-		reg = NISTC_INTA2_ENA_REG;
-		if (enable)
-			val = NISTC_INTA_ENA_G0_GATE;
-	} else {
-		reg = NISTC_INTB2_ENA_REG;
-		if (enable)
-			val = NISTC_INTB_ENA_G1_GATE;
-	}
-	ni_stc_writew(dev, val, reg);
-}
-#endif /*  PCIDMA */
-
-static void ni_clear_ai_fifo(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	static const int timeout = 10000;
-	int i;
-
-	if (devpriv->is_6143) {
-		/*  Flush the 6143 data FIFO */
-		ni_writel(dev, 0x10, NI6143_AI_FIFO_CTRL_REG);
-		ni_writel(dev, 0x00, NI6143_AI_FIFO_CTRL_REG);
-		/*  Wait for complete */
-		for (i = 0; i < timeout; i++) {
-			if (!(ni_readl(dev, NI6143_AI_FIFO_STATUS_REG) & 0x10))
-				break;
-			udelay(1);
-		}
-		if (i == timeout)
-			dev_err(dev->class_dev, "FIFO flush timeout\n");
-	} else {
-		ni_stc_writew(dev, 1, NISTC_ADC_FIFO_CLR_REG);
-		if (devpriv->is_625x) {
-			ni_writeb(dev, 0, NI_M_STATIC_AI_CTRL_REG(0));
-			ni_writeb(dev, 1, NI_M_STATIC_AI_CTRL_REG(0));
-#if 0
-			/* the NI example code does 3 convert pulses for 625x boards,
-			   but that appears to be wrong in practice. */
-			ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE,
-				      NISTC_AI_CMD1_REG);
-			ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE,
-				      NISTC_AI_CMD1_REG);
-			ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE,
-				      NISTC_AI_CMD1_REG);
-#endif
-		}
-	}
-}
-
-static inline void ni_ao_win_outw(struct comedi_device *dev, uint16_t data,
-				  int addr)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->window_lock, flags);
-	ni_writew(dev, addr, NI611X_AO_WINDOW_ADDR_REG);
-	ni_writew(dev, data, NI611X_AO_WINDOW_DATA_REG);
-	spin_unlock_irqrestore(&devpriv->window_lock, flags);
-}
-
-static inline void ni_ao_win_outl(struct comedi_device *dev, uint32_t data,
-				  int addr)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->window_lock, flags);
-	ni_writew(dev, addr, NI611X_AO_WINDOW_ADDR_REG);
-	ni_writel(dev, data, NI611X_AO_WINDOW_DATA_REG);
-	spin_unlock_irqrestore(&devpriv->window_lock, flags);
-}
-
-static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-	unsigned short data;
-
-	spin_lock_irqsave(&devpriv->window_lock, flags);
-	ni_writew(dev, addr, NI611X_AO_WINDOW_ADDR_REG);
-	data = ni_readw(dev, NI611X_AO_WINDOW_DATA_REG);
-	spin_unlock_irqrestore(&devpriv->window_lock, flags);
-	return data;
-}
-
-/* ni_set_bits( ) allows different parts of the ni_mio_common driver to
-* share registers (such as Interrupt_A_Register) without interfering with
-* each other.
-*
-* NOTE: the switch/case statements are optimized out for a constant argument
-* so this is actually quite fast---  If you must wrap another function around this
-* make it inline to avoid a large speed penalty.
-*
-* value should only be 1 or 0.
-*/
-static inline void ni_set_bits(struct comedi_device *dev, int reg,
-			       unsigned bits, unsigned value)
-{
-	unsigned bit_values;
-
-	if (value)
-		bit_values = bits;
-	else
-		bit_values = 0;
-	ni_set_bitfield(dev, reg, bits, bit_values);
-}
-
-#ifdef PCIDMA
-static void ni_sync_ai_dma(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ai_mite_chan)
-		mite_sync_input_dma(devpriv->ai_mite_chan, s);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-}
-
-static int ni_ai_drain_dma(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	int i;
-	static const int timeout = 10000;
-	unsigned long flags;
-	int retval = 0;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ai_mite_chan) {
-		for (i = 0; i < timeout; i++) {
-			if ((ni_stc_readw(dev, NISTC_AI_STATUS1_REG) &
-			     NISTC_AI_STATUS1_FIFO_E)
-			    && mite_bytes_in_transit(devpriv->ai_mite_chan) ==
-			    0)
-				break;
-			udelay(5);
-		}
-		if (i == timeout) {
-			dev_err(dev->class_dev, "timed out\n");
-			dev_err(dev->class_dev,
-				"mite_bytes_in_transit=%i, AI_Status1_Register=0x%x\n",
-				mite_bytes_in_transit(devpriv->ai_mite_chan),
-				ni_stc_readw(dev, NISTC_AI_STATUS1_REG));
-			retval = -1;
-		}
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-
-	ni_sync_ai_dma(dev);
-
-	return retval;
-}
-
-static void mite_handle_b_linkc(struct mite_struct *mite,
-				struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ao_mite_chan)
-		mite_sync_output_dma(devpriv->ao_mite_chan, s);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-}
-
-static int ni_ao_wait_for_dma_load(struct comedi_device *dev)
-{
-	static const int timeout = 10000;
-	int i;
-
-	for (i = 0; i < timeout; i++) {
-		unsigned short b_status;
-
-		b_status = ni_stc_readw(dev, NISTC_AO_STATUS1_REG);
-		if (b_status & NISTC_AO_STATUS1_FIFO_HF)
-			break;
-		/* if we poll too often, the pci bus activity seems
-		   to slow the dma transfer down */
-		udelay(10);
-	}
-	if (i == timeout) {
-		dev_err(dev->class_dev, "timed out waiting for dma load\n");
-		return -EPIPE;
-	}
-	return 0;
-}
-#endif /* PCIDMA */
-
-#ifndef PCIDMA
-
-static void ni_ao_fifo_load(struct comedi_device *dev,
-			    struct comedi_subdevice *s, int n)
-{
-	struct ni_private *devpriv = dev->private;
-	int i;
-	unsigned short d;
-	u32 packed_data;
-
-	for (i = 0; i < n; i++) {
-		comedi_buf_read_samples(s, &d, 1);
-
-		if (devpriv->is_6xxx) {
-			packed_data = d & 0xffff;
-			/* 6711 only has 16 bit wide ao fifo */
-			if (!devpriv->is_6711) {
-				comedi_buf_read_samples(s, &d, 1);
-				i++;
-				packed_data |= (d << 16) & 0xffff0000;
-			}
-			ni_writel(dev, packed_data, NI611X_AO_FIFO_DATA_REG);
-		} else {
-			ni_writew(dev, d, NI_E_AO_FIFO_DATA_REG);
-		}
-	}
-}
-
-/*
- *  There's a small problem if the FIFO gets really low and we
- *  don't have the data to fill it.  Basically, if after we fill
- *  the FIFO with all the data available, the FIFO is _still_
- *  less than half full, we never clear the interrupt.  If the
- *  IRQ is in edge mode, we never get another interrupt, because
- *  this one wasn't cleared.  If in level mode, we get flooded
- *  with interrupts that we can't fulfill, because nothing ever
- *  gets put into the buffer.
- *
- *  This kind of situation is recoverable, but it is easier to
- *  just pretend we had a FIFO underrun, since there is a good
- *  chance it will happen anyway.  This is _not_ the case for
- *  RT code, as RT code might purposely be running close to the
- *  metal.  Needs to be fixed eventually.
- */
-static int ni_ao_fifo_half_empty(struct comedi_device *dev,
-				 struct comedi_subdevice *s)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	unsigned int nbytes;
-	unsigned int nsamples;
-
-	nbytes = comedi_buf_read_n_available(s);
-	if (nbytes == 0) {
-		s->async->events |= COMEDI_CB_OVERFLOW;
-		return 0;
-	}
-
-	nsamples = comedi_bytes_to_samples(s, nbytes);
-	if (nsamples > board->ao_fifo_depth / 2)
-		nsamples = board->ao_fifo_depth / 2;
-
-	ni_ao_fifo_load(dev, s, nsamples);
-
-	return 1;
-}
-
-static int ni_ao_prep_fifo(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	unsigned int nbytes;
-	unsigned int nsamples;
-
-	/* reset fifo */
-	ni_stc_writew(dev, 1, NISTC_DAC_FIFO_CLR_REG);
-	if (devpriv->is_6xxx)
-		ni_ao_win_outl(dev, 0x6, NI611X_AO_FIFO_OFFSET_LOAD_REG);
-
-	/* load some data */
-	nbytes = comedi_buf_read_n_available(s);
-	if (nbytes == 0)
-		return 0;
-
-	nsamples = comedi_bytes_to_samples(s, nbytes);
-	if (nsamples > board->ao_fifo_depth)
-		nsamples = board->ao_fifo_depth;
-
-	ni_ao_fifo_load(dev, s, nsamples);
-
-	return nsamples;
-}
-
-static void ni_ai_fifo_read(struct comedi_device *dev,
-			    struct comedi_subdevice *s, int n)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	u32 dl;
-	unsigned short data;
-	int i;
-
-	if (devpriv->is_611x) {
-		for (i = 0; i < n / 2; i++) {
-			dl = ni_readl(dev, NI611X_AI_FIFO_DATA_REG);
-			/* This may get the hi/lo data in the wrong order */
-			data = (dl >> 16) & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-			data = dl & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-		}
-		/* Check if there's a single sample stuck in the FIFO */
-		if (n % 2) {
-			dl = ni_readl(dev, NI611X_AI_FIFO_DATA_REG);
-			data = dl & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-		}
-	} else if (devpriv->is_6143) {
-		/*  This just reads the FIFO assuming the data is present, no checks on the FIFO status are performed */
-		for (i = 0; i < n / 2; i++) {
-			dl = ni_readl(dev, NI6143_AI_FIFO_DATA_REG);
-
-			data = (dl >> 16) & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-			data = dl & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-		}
-		if (n % 2) {
-			/* Assume there is a single sample stuck in the FIFO */
-			/* Get stranded sample into FIFO */
-			ni_writel(dev, 0x01, NI6143_AI_FIFO_CTRL_REG);
-			dl = ni_readl(dev, NI6143_AI_FIFO_DATA_REG);
-			data = (dl >> 16) & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-		}
-	} else {
-		if (n > sizeof(devpriv->ai_fifo_buffer) /
-		    sizeof(devpriv->ai_fifo_buffer[0])) {
-			dev_err(dev->class_dev,
-				"bug! ai_fifo_buffer too small\n");
-			async->events |= COMEDI_CB_ERROR;
-			return;
-		}
-		for (i = 0; i < n; i++) {
-			devpriv->ai_fifo_buffer[i] =
-			    ni_readw(dev, NI_E_AI_FIFO_DATA_REG);
-		}
-		comedi_buf_write_samples(s, devpriv->ai_fifo_buffer, n);
-	}
-}
-
-static void ni_handle_fifo_half_full(struct comedi_device *dev)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct comedi_subdevice *s = dev->read_subdev;
-	int n;
-
-	n = board->ai_fifo_depth / 2;
-
-	ni_ai_fifo_read(dev, s, n);
-}
-#endif
-
-/*
-   Empties the AI fifo
-*/
-static void ni_handle_fifo_dregs(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	u32 dl;
-	unsigned short data;
-	unsigned short fifo_empty;
-	int i;
-
-	if (devpriv->is_611x) {
-		while ((ni_stc_readw(dev, NISTC_AI_STATUS1_REG) &
-			NISTC_AI_STATUS1_FIFO_E) == 0) {
-			dl = ni_readl(dev, NI611X_AI_FIFO_DATA_REG);
-
-			/* This may get the hi/lo data in the wrong order */
-			data = dl >> 16;
-			comedi_buf_write_samples(s, &data, 1);
-			data = dl & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-		}
-	} else if (devpriv->is_6143) {
-		i = 0;
-		while (ni_readl(dev, NI6143_AI_FIFO_STATUS_REG) & 0x04) {
-			dl = ni_readl(dev, NI6143_AI_FIFO_DATA_REG);
-
-			/* This may get the hi/lo data in the wrong order */
-			data = dl >> 16;
-			comedi_buf_write_samples(s, &data, 1);
-			data = dl & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-			i += 2;
-		}
-		/*  Check if stranded sample is present */
-		if (ni_readl(dev, NI6143_AI_FIFO_STATUS_REG) & 0x01) {
-			/* Get stranded sample into FIFO */
-			ni_writel(dev, 0x01, NI6143_AI_FIFO_CTRL_REG);
-			dl = ni_readl(dev, NI6143_AI_FIFO_DATA_REG);
-			data = (dl >> 16) & 0xffff;
-			comedi_buf_write_samples(s, &data, 1);
-		}
-
-	} else {
-		fifo_empty = ni_stc_readw(dev, NISTC_AI_STATUS1_REG) &
-			     NISTC_AI_STATUS1_FIFO_E;
-		while (fifo_empty == 0) {
-			for (i = 0;
-			     i <
-			     sizeof(devpriv->ai_fifo_buffer) /
-			     sizeof(devpriv->ai_fifo_buffer[0]); i++) {
-				fifo_empty = ni_stc_readw(dev,
-							  NISTC_AI_STATUS1_REG) &
-						NISTC_AI_STATUS1_FIFO_E;
-				if (fifo_empty)
-					break;
-				devpriv->ai_fifo_buffer[i] =
-				    ni_readw(dev, NI_E_AI_FIFO_DATA_REG);
-			}
-			comedi_buf_write_samples(s, devpriv->ai_fifo_buffer, i);
-		}
-	}
-}
-
-static void get_last_sample_611x(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned short data;
-	u32 dl;
-
-	if (!devpriv->is_611x)
-		return;
-
-	/* Check if there's a single sample stuck in the FIFO */
-	if (ni_readb(dev, NI_E_STATUS_REG) & 0x80) {
-		dl = ni_readl(dev, NI611X_AI_FIFO_DATA_REG);
-		data = dl & 0xffff;
-		comedi_buf_write_samples(s, &data, 1);
-	}
-}
-
-static void get_last_sample_6143(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned short data;
-	u32 dl;
-
-	if (!devpriv->is_6143)
-		return;
-
-	/* Check if there's a single sample stuck in the FIFO */
-	if (ni_readl(dev, NI6143_AI_FIFO_STATUS_REG) & 0x01) {
-		/* Get stranded sample into FIFO */
-		ni_writel(dev, 0x01, NI6143_AI_FIFO_CTRL_REG);
-		dl = ni_readl(dev, NI6143_AI_FIFO_DATA_REG);
-
-		/* This may get the hi/lo data in the wrong order */
-		data = (dl >> 16) & 0xffff;
-		comedi_buf_write_samples(s, &data, 1);
-	}
-}
-
-static void shutdown_ai_command(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s = dev->read_subdev;
-
-#ifdef PCIDMA
-	ni_ai_drain_dma(dev);
-#endif
-	ni_handle_fifo_dregs(dev);
-	get_last_sample_611x(dev);
-	get_last_sample_6143(dev);
-
-	s->async->events |= COMEDI_CB_EOA;
-}
-
-static void ni_handle_eos(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (devpriv->aimode == AIMODE_SCAN) {
-#ifdef PCIDMA
-		static const int timeout = 10;
-		int i;
-
-		for (i = 0; i < timeout; i++) {
-			ni_sync_ai_dma(dev);
-			if ((s->async->events & COMEDI_CB_EOS))
-				break;
-			udelay(1);
-		}
-#else
-		ni_handle_fifo_dregs(dev);
-		s->async->events |= COMEDI_CB_EOS;
-#endif
-	}
-	/* handle special case of single scan */
-	if (devpriv->ai_cmd2 & NISTC_AI_CMD2_END_ON_EOS)
-		shutdown_ai_command(dev);
-}
-
-static void handle_gpct_interrupt(struct comedi_device *dev,
-				  unsigned short counter_index)
-{
-#ifdef PCIDMA
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s;
-
-	s = &dev->subdevices[NI_GPCT_SUBDEV(counter_index)];
-
-	ni_tio_handle_interrupt(&devpriv->counter_dev->counters[counter_index],
-				s);
-	comedi_handle_events(dev, s);
-#endif
-}
-
-static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status)
-{
-	unsigned short ack = 0;
-
-	if (a_status & NISTC_AI_STATUS1_SC_TC)
-		ack |= NISTC_INTA_ACK_AI_SC_TC;
-	if (a_status & NISTC_AI_STATUS1_START1)
-		ack |= NISTC_INTA_ACK_AI_START1;
-	if (a_status & NISTC_AI_STATUS1_START)
-		ack |= NISTC_INTA_ACK_AI_START;
-	if (a_status & NISTC_AI_STATUS1_STOP)
-		ack |= NISTC_INTA_ACK_AI_STOP;
-	if (ack)
-		ni_stc_writew(dev, ack, NISTC_INTA_ACK_REG);
-}
-
-static void handle_a_interrupt(struct comedi_device *dev, unsigned short status,
-			       unsigned ai_mite_status)
-{
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	/* 67xx boards don't have ai subdevice, but their gpct0 might generate an a interrupt */
-	if (s->type == COMEDI_SUBD_UNUSED)
-		return;
-
-#ifdef PCIDMA
-	if (ai_mite_status & CHSR_LINKC)
-		ni_sync_ai_dma(dev);
-
-	if (ai_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY |
-			       CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR |
-			       CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) {
-		dev_err(dev->class_dev,
-			"unknown mite interrupt (ai_mite_status=%08x)\n",
-			ai_mite_status);
-		s->async->events |= COMEDI_CB_ERROR;
-		/* disable_irq(dev->irq); */
-	}
-#endif
-
-	/* test for all uncommon interrupt events at the same time */
-	if (status & (NISTC_AI_STATUS1_ERR |
-		      NISTC_AI_STATUS1_SC_TC | NISTC_AI_STATUS1_START1)) {
-		if (status == 0xffff) {
-			dev_err(dev->class_dev, "Card removed?\n");
-			/* we probably aren't even running a command now,
-			 * so it's a good idea to be careful. */
-			if (comedi_is_subdevice_running(s)) {
-				s->async->events |= COMEDI_CB_ERROR;
-				comedi_handle_events(dev, s);
-			}
-			return;
-		}
-		if (status & NISTC_AI_STATUS1_ERR) {
-			dev_err(dev->class_dev, "ai error a_status=%04x\n",
-				status);
-
-			shutdown_ai_command(dev);
-
-			s->async->events |= COMEDI_CB_ERROR;
-			if (status & NISTC_AI_STATUS1_OVER)
-				s->async->events |= COMEDI_CB_OVERFLOW;
-
-			comedi_handle_events(dev, s);
-			return;
-		}
-		if (status & NISTC_AI_STATUS1_SC_TC) {
-			if (cmd->stop_src == TRIG_COUNT)
-				shutdown_ai_command(dev);
-		}
-	}
-#ifndef PCIDMA
-	if (status & NISTC_AI_STATUS1_FIFO_HF) {
-		int i;
-		static const int timeout = 10;
-		/* pcmcia cards (at least 6036) seem to stop producing interrupts if we
-		 *fail to get the fifo less than half full, so loop to be sure.*/
-		for (i = 0; i < timeout; ++i) {
-			ni_handle_fifo_half_full(dev);
-			if ((ni_stc_readw(dev, NISTC_AI_STATUS1_REG) &
-			     NISTC_AI_STATUS1_FIFO_HF) == 0)
-				break;
-		}
-	}
-#endif /*  !PCIDMA */
-
-	if (status & NISTC_AI_STATUS1_STOP)
-		ni_handle_eos(dev, s);
-
-	comedi_handle_events(dev, s);
-}
-
-static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status)
-{
-	unsigned short ack = 0;
-
-	if (b_status & NISTC_AO_STATUS1_BC_TC)
-		ack |= NISTC_INTB_ACK_AO_BC_TC;
-	if (b_status & NISTC_AO_STATUS1_OVERRUN)
-		ack |= NISTC_INTB_ACK_AO_ERR;
-	if (b_status & NISTC_AO_STATUS1_START)
-		ack |= NISTC_INTB_ACK_AO_START;
-	if (b_status & NISTC_AO_STATUS1_START1)
-		ack |= NISTC_INTB_ACK_AO_START1;
-	if (b_status & NISTC_AO_STATUS1_UC_TC)
-		ack |= NISTC_INTB_ACK_AO_UC_TC;
-	if (b_status & NISTC_AO_STATUS1_UI2_TC)
-		ack |= NISTC_INTB_ACK_AO_UI2_TC;
-	if (b_status & NISTC_AO_STATUS1_UPDATE)
-		ack |= NISTC_INTB_ACK_AO_UPDATE;
-	if (ack)
-		ni_stc_writew(dev, ack, NISTC_INTB_ACK_REG);
-}
-
-static void handle_b_interrupt(struct comedi_device *dev,
-			       unsigned short b_status, unsigned ao_mite_status)
-{
-	struct comedi_subdevice *s = dev->write_subdev;
-	/* unsigned short ack=0; */
-
-#ifdef PCIDMA
-	/* Currently, mite.c requires us to handle LINKC */
-	if (ao_mite_status & CHSR_LINKC) {
-		struct ni_private *devpriv = dev->private;
-
-		mite_handle_b_linkc(devpriv->mite, dev);
-	}
-
-	if (ao_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY |
-			       CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR |
-			       CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) {
-		dev_err(dev->class_dev,
-			"unknown mite interrupt (ao_mite_status=%08x)\n",
-			ao_mite_status);
-		s->async->events |= COMEDI_CB_ERROR;
-	}
-#endif
-
-	if (b_status == 0xffff)
-		return;
-	if (b_status & NISTC_AO_STATUS1_OVERRUN) {
-		dev_err(dev->class_dev,
-			"AO FIFO underrun status=0x%04x status2=0x%04x\n",
-			b_status, ni_stc_readw(dev, NISTC_AO_STATUS2_REG));
-		s->async->events |= COMEDI_CB_OVERFLOW;
-	}
-
-	if (b_status & NISTC_AO_STATUS1_BC_TC)
-		s->async->events |= COMEDI_CB_EOA;
-
-#ifndef PCIDMA
-	if (b_status & NISTC_AO_STATUS1_FIFO_REQ) {
-		int ret;
-
-		ret = ni_ao_fifo_half_empty(dev, s);
-		if (!ret) {
-			dev_err(dev->class_dev, "AO buffer underrun\n");
-			ni_set_bits(dev, NISTC_INTB_ENA_REG,
-				    NISTC_INTB_ENA_AO_FIFO |
-				    NISTC_INTB_ENA_AO_ERR, 0);
-			s->async->events |= COMEDI_CB_OVERFLOW;
-		}
-	}
-#endif
-
-	comedi_handle_events(dev, s);
-}
-
-static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s,
-			void *data, unsigned int num_bytes,
-			unsigned int chan_index)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int nsamples = comedi_bytes_to_samples(s, num_bytes);
-	unsigned short *array = data;
-	unsigned int *larray = data;
-	unsigned int i;
-
-	for (i = 0; i < nsamples; i++) {
-#ifdef PCIDMA
-		if (s->subdev_flags & SDF_LSAMPL)
-			larray[i] = le32_to_cpu(larray[i]);
-		else
-			array[i] = le16_to_cpu(array[i]);
-#endif
-		if (s->subdev_flags & SDF_LSAMPL)
-			larray[i] += devpriv->ai_offset[chan_index];
-		else
-			array[i] += devpriv->ai_offset[chan_index];
-		chan_index++;
-		chan_index %= cmd->chanlist_len;
-	}
-}
-
-#ifdef PCIDMA
-
-static int ni_ai_setup_MITE_dma(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	int retval;
-	unsigned long flags;
-
-	retval = ni_request_ai_mite_channel(dev);
-	if (retval)
-		return retval;
-
-	/* write alloc the entire buffer */
-	comedi_buf_write_alloc(s, s->async->prealloc_bufsz);
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (!devpriv->ai_mite_chan) {
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-		return -EIO;
-	}
-
-	if (devpriv->is_611x || devpriv->is_6143)
-		mite_prep_dma(devpriv->ai_mite_chan, 32, 16);
-	else if (devpriv->is_628x)
-		mite_prep_dma(devpriv->ai_mite_chan, 32, 32);
-	else
-		mite_prep_dma(devpriv->ai_mite_chan, 16, 16);
-
-	/*start the MITE */
-	mite_dma_arm(devpriv->ai_mite_chan);
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-
-	return 0;
-}
-
-static int ni_ao_setup_MITE_dma(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	int retval;
-	unsigned long flags;
-
-	retval = ni_request_ao_mite_channel(dev);
-	if (retval)
-		return retval;
-
-	/* read alloc the entire buffer */
-	comedi_buf_read_alloc(s, s->async->prealloc_bufsz);
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->ao_mite_chan) {
-		if (devpriv->is_611x || devpriv->is_6713) {
-			mite_prep_dma(devpriv->ao_mite_chan, 32, 32);
-		} else {
-			/* doing 32 instead of 16 bit wide transfers from memory
-			   makes the mite do 32 bit pci transfers, doubling pci bandwidth. */
-			mite_prep_dma(devpriv->ao_mite_chan, 16, 32);
-		}
-		mite_dma_arm(devpriv->ao_mite_chan);
-	} else {
-		retval = -EIO;
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-
-	return retval;
-}
-
-#endif /*  PCIDMA */
-
-/*
-   used for both cancel ioctl and board initialization
-
-   this is pretty harsh for a cancel, but it works...
- */
-
-static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned ai_personal;
-	unsigned ai_out_ctrl;
-
-	ni_release_ai_mite_channel(dev);
-	/* ai configuration */
-	ni_stc_writew(dev, NISTC_RESET_AI_CFG_START | NISTC_RESET_AI,
-		      NISTC_RESET_REG);
-
-	ni_set_bits(dev, NISTC_INTA_ENA_REG, NISTC_INTA_ENA_AI_MASK, 0);
-
-	ni_clear_ai_fifo(dev);
-
-	if (!devpriv->is_6143)
-		ni_writeb(dev, NI_E_MISC_CMD_EXT_ATRIG, NI_E_MISC_CMD_REG);
-
-	ni_stc_writew(dev, NISTC_AI_CMD1_DISARM, NISTC_AI_CMD1_REG);
-	ni_stc_writew(dev, NISTC_AI_MODE1_START_STOP |
-			   NISTC_AI_MODE1_RSVD
-			    /*| NISTC_AI_MODE1_TRIGGER_ONCE */,
-		      NISTC_AI_MODE1_REG);
-	ni_stc_writew(dev, 0, NISTC_AI_MODE2_REG);
-	/* generate FIFO interrupts on non-empty */
-	ni_stc_writew(dev, NISTC_AI_MODE3_FIFO_MODE_NE,
-		      NISTC_AI_MODE3_REG);
-
-	ai_personal = NISTC_AI_PERSONAL_SHIFTIN_PW |
-		      NISTC_AI_PERSONAL_SOC_POLARITY |
-		      NISTC_AI_PERSONAL_LOCALMUX_CLK_PW;
-	ai_out_ctrl = NISTC_AI_OUT_CTRL_SCAN_IN_PROG_SEL(3) |
-		      NISTC_AI_OUT_CTRL_EXTMUX_CLK_SEL(0) |
-		      NISTC_AI_OUT_CTRL_LOCALMUX_CLK_SEL(2) |
-		      NISTC_AI_OUT_CTRL_SC_TC_SEL(3);
-	if (devpriv->is_611x) {
-		ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_HIGH;
-	} else if (devpriv->is_6143) {
-		ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_LOW;
-	} else {
-		ai_personal |= NISTC_AI_PERSONAL_CONVERT_PW;
-		if (devpriv->is_622x)
-			ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_HIGH;
-		else
-			ai_out_ctrl |= NISTC_AI_OUT_CTRL_CONVERT_LOW;
-	}
-	ni_stc_writew(dev, ai_personal, NISTC_AI_PERSONAL_REG);
-	ni_stc_writew(dev, ai_out_ctrl, NISTC_AI_OUT_CTRL_REG);
-
-	/* the following registers should not be changed, because there
-	 * are no backup registers in devpriv.  If you want to change
-	 * any of these, add a backup register and other appropriate code:
-	 *      NISTC_AI_MODE1_REG
-	 *      NISTC_AI_MODE3_REG
-	 *      NISTC_AI_PERSONAL_REG
-	 *      NISTC_AI_OUT_CTRL_REG
-	 */
-
-	/* clear interrupts */
-	ni_stc_writew(dev, NISTC_INTA_ACK_AI_ALL, NISTC_INTA_ACK_REG);
-
-	ni_stc_writew(dev, NISTC_RESET_AI_CFG_END, NISTC_RESET_REG);
-
-	return 0;
-}
-
-static int ni_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	unsigned long flags;
-	int count;
-
-	/*  lock to avoid race with interrupt handler */
-	spin_lock_irqsave(&dev->spinlock, flags);
-#ifndef PCIDMA
-	ni_handle_fifo_dregs(dev);
-#else
-	ni_sync_ai_dma(dev);
-#endif
-	count = comedi_buf_n_bytes_ready(s);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return count;
-}
-
-static void ni_prime_channelgain_list(struct comedi_device *dev)
-{
-	int i;
-
-	ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE, NISTC_AI_CMD1_REG);
-	for (i = 0; i < NI_TIMEOUT; ++i) {
-		if (!(ni_stc_readw(dev, NISTC_AI_STATUS1_REG) &
-		      NISTC_AI_STATUS1_FIFO_E)) {
-			ni_stc_writew(dev, 1, NISTC_ADC_FIFO_CLR_REG);
-			return;
-		}
-		udelay(1);
-	}
-	dev_err(dev->class_dev, "timeout loading channel/gain list\n");
-}
-
-static void ni_m_series_load_channelgain_list(struct comedi_device *dev,
-					      unsigned int n_chan,
-					      unsigned int *list)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	unsigned int chan, range, aref;
-	unsigned int i;
-	unsigned int dither;
-	unsigned range_code;
-
-	ni_stc_writew(dev, 1, NISTC_CFG_MEM_CLR_REG);
-
-	if ((list[0] & CR_ALT_SOURCE)) {
-		unsigned bypass_bits;
-
-		chan = CR_CHAN(list[0]);
-		range = CR_RANGE(list[0]);
-		range_code = ni_gainlkup[board->gainlkup][range];
-		dither = (list[0] & CR_ALT_FILTER) != 0;
-		bypass_bits = NI_M_CFG_BYPASS_FIFO |
-			      NI_M_CFG_BYPASS_AI_CHAN(chan) |
-			      NI_M_CFG_BYPASS_AI_GAIN(range_code) |
-			      devpriv->ai_calib_source;
-		if (dither)
-			bypass_bits |= NI_M_CFG_BYPASS_AI_DITHER;
-		/*  don't use 2's complement encoding */
-		bypass_bits |= NI_M_CFG_BYPASS_AI_POLARITY;
-		ni_writel(dev, bypass_bits, NI_M_CFG_BYPASS_FIFO_REG);
-	} else {
-		ni_writel(dev, 0, NI_M_CFG_BYPASS_FIFO_REG);
-	}
-	for (i = 0; i < n_chan; i++) {
-		unsigned config_bits = 0;
-
-		chan = CR_CHAN(list[i]);
-		aref = CR_AREF(list[i]);
-		range = CR_RANGE(list[i]);
-		dither = (list[i] & CR_ALT_FILTER) != 0;
-
-		range_code = ni_gainlkup[board->gainlkup][range];
-		devpriv->ai_offset[i] = 0;
-		switch (aref) {
-		case AREF_DIFF:
-			config_bits |= NI_M_AI_CFG_CHAN_TYPE_DIFF;
-			break;
-		case AREF_COMMON:
-			config_bits |= NI_M_AI_CFG_CHAN_TYPE_COMMON;
-			break;
-		case AREF_GROUND:
-			config_bits |= NI_M_AI_CFG_CHAN_TYPE_GROUND;
-			break;
-		case AREF_OTHER:
-			break;
-		}
-		config_bits |= NI_M_AI_CFG_CHAN_SEL(chan);
-		config_bits |= NI_M_AI_CFG_BANK_SEL(chan);
-		config_bits |= NI_M_AI_CFG_GAIN(range_code);
-		if (i == n_chan - 1)
-			config_bits |= NI_M_AI_CFG_LAST_CHAN;
-		if (dither)
-			config_bits |= NI_M_AI_CFG_DITHER;
-		/*  don't use 2's complement encoding */
-		config_bits |= NI_M_AI_CFG_POLARITY;
-		ni_writew(dev, config_bits, NI_M_AI_CFG_FIFO_DATA_REG);
-	}
-	ni_prime_channelgain_list(dev);
-}
-
-/*
- * Notes on the 6110 and 6111:
- * These boards a slightly different than the rest of the series, since
- * they have multiple A/D converters.
- * From the driver side, the configuration memory is a
- * little different.
- * Configuration Memory Low:
- *   bits 15-9: same
- *   bit 8: unipolar/bipolar (should be 0 for bipolar)
- *   bits 0-3: gain.  This is 4 bits instead of 3 for the other boards
- *       1001 gain=0.1 (+/- 50)
- *       1010 0.2
- *       1011 0.1
- *       0001 1
- *       0010 2
- *       0011 5
- *       0100 10
- *       0101 20
- *       0110 50
- * Configuration Memory High:
- *   bits 12-14: Channel Type
- *       001 for differential
- *       000 for calibration
- *   bit 11: coupling  (this is not currently handled)
- *       1 AC coupling
- *       0 DC coupling
- *   bits 0-2: channel
- *       valid channels are 0-3
- */
-static void ni_load_channelgain_list(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     unsigned int n_chan, unsigned int *list)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	unsigned int offset = (s->maxdata + 1) >> 1;
-	unsigned int chan, range, aref;
-	unsigned int i;
-	unsigned int hi, lo;
-	unsigned int dither;
-
-	if (devpriv->is_m_series) {
-		ni_m_series_load_channelgain_list(dev, n_chan, list);
-		return;
-	}
-	if (n_chan == 1 && !devpriv->is_611x && !devpriv->is_6143) {
-		if (devpriv->changain_state
-		    && devpriv->changain_spec == list[0]) {
-			/*  ready to go. */
-			return;
-		}
-		devpriv->changain_state = 1;
-		devpriv->changain_spec = list[0];
-	} else {
-		devpriv->changain_state = 0;
-	}
-
-	ni_stc_writew(dev, 1, NISTC_CFG_MEM_CLR_REG);
-
-	/*  Set up Calibration mode if required */
-	if (devpriv->is_6143) {
-		if ((list[0] & CR_ALT_SOURCE)
-		    && !devpriv->ai_calib_source_enabled) {
-			/*  Strobe Relay enable bit */
-			ni_writew(dev, devpriv->ai_calib_source |
-				       NI6143_CALIB_CHAN_RELAY_ON,
-				  NI6143_CALIB_CHAN_REG);
-			ni_writew(dev, devpriv->ai_calib_source,
-				  NI6143_CALIB_CHAN_REG);
-			devpriv->ai_calib_source_enabled = 1;
-			msleep_interruptible(100);	/*  Allow relays to change */
-		} else if (!(list[0] & CR_ALT_SOURCE)
-			   && devpriv->ai_calib_source_enabled) {
-			/*  Strobe Relay disable bit */
-			ni_writew(dev, devpriv->ai_calib_source |
-				       NI6143_CALIB_CHAN_RELAY_OFF,
-				  NI6143_CALIB_CHAN_REG);
-			ni_writew(dev, devpriv->ai_calib_source,
-				  NI6143_CALIB_CHAN_REG);
-			devpriv->ai_calib_source_enabled = 0;
-			msleep_interruptible(100);	/*  Allow relays to change */
-		}
-	}
-
-	for (i = 0; i < n_chan; i++) {
-		if (!devpriv->is_6143 && (list[i] & CR_ALT_SOURCE))
-			chan = devpriv->ai_calib_source;
-		else
-			chan = CR_CHAN(list[i]);
-		aref = CR_AREF(list[i]);
-		range = CR_RANGE(list[i]);
-		dither = (list[i] & CR_ALT_FILTER) != 0;
-
-		/* fix the external/internal range differences */
-		range = ni_gainlkup[board->gainlkup][range];
-		if (devpriv->is_611x)
-			devpriv->ai_offset[i] = offset;
-		else
-			devpriv->ai_offset[i] = (range & 0x100) ? 0 : offset;
-
-		hi = 0;
-		if ((list[i] & CR_ALT_SOURCE)) {
-			if (devpriv->is_611x)
-				ni_writew(dev, CR_CHAN(list[i]) & 0x0003,
-					  NI611X_CALIB_CHAN_SEL_REG);
-		} else {
-			if (devpriv->is_611x)
-				aref = AREF_DIFF;
-			else if (devpriv->is_6143)
-				aref = AREF_OTHER;
-			switch (aref) {
-			case AREF_DIFF:
-				hi |= NI_E_AI_CFG_HI_TYPE_DIFF;
-				break;
-			case AREF_COMMON:
-				hi |= NI_E_AI_CFG_HI_TYPE_COMMON;
-				break;
-			case AREF_GROUND:
-				hi |= NI_E_AI_CFG_HI_TYPE_GROUND;
-				break;
-			case AREF_OTHER:
-				break;
-			}
-		}
-		hi |= NI_E_AI_CFG_HI_CHAN(chan);
-
-		ni_writew(dev, hi, NI_E_AI_CFG_HI_REG);
-
-		if (!devpriv->is_6143) {
-			lo = NI_E_AI_CFG_LO_GAIN(range);
-
-			if (i == n_chan - 1)
-				lo |= NI_E_AI_CFG_LO_LAST_CHAN;
-			if (dither)
-				lo |= NI_E_AI_CFG_LO_DITHER;
-
-			ni_writew(dev, lo, NI_E_AI_CFG_LO_REG);
-		}
-	}
-
-	/* prime the channel/gain list */
-	if (!devpriv->is_611x && !devpriv->is_6143)
-		ni_prime_channelgain_list(dev);
-}
-
-static int ni_ai_insn_read(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int mask = (s->maxdata + 1) >> 1;
-	int i, n;
-	unsigned signbits;
-	unsigned int d;
-	unsigned long dl;
-
-	ni_load_channelgain_list(dev, s, 1, &insn->chanspec);
-
-	ni_clear_ai_fifo(dev);
-
-	signbits = devpriv->ai_offset[0];
-	if (devpriv->is_611x) {
-		for (n = 0; n < num_adc_stages_611x; n++) {
-			ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE,
-				      NISTC_AI_CMD1_REG);
-			udelay(1);
-		}
-		for (n = 0; n < insn->n; n++) {
-			ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE,
-				      NISTC_AI_CMD1_REG);
-			/* The 611x has screwy 32-bit FIFOs. */
-			d = 0;
-			for (i = 0; i < NI_TIMEOUT; i++) {
-				if (ni_readb(dev, NI_E_STATUS_REG) & 0x80) {
-					d = ni_readl(dev,
-						     NI611X_AI_FIFO_DATA_REG);
-					d >>= 16;
-					d &= 0xffff;
-					break;
-				}
-				if (!(ni_stc_readw(dev, NISTC_AI_STATUS1_REG) &
-				      NISTC_AI_STATUS1_FIFO_E)) {
-					d = ni_readl(dev,
-						     NI611X_AI_FIFO_DATA_REG);
-					d &= 0xffff;
-					break;
-				}
-			}
-			if (i == NI_TIMEOUT) {
-				dev_err(dev->class_dev, "timeout\n");
-				return -ETIME;
-			}
-			d += signbits;
-			data[n] = d;
-		}
-	} else if (devpriv->is_6143) {
-		for (n = 0; n < insn->n; n++) {
-			ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE,
-				      NISTC_AI_CMD1_REG);
-
-			/* The 6143 has 32-bit FIFOs. You need to strobe a bit to move a single 16bit stranded sample into the FIFO */
-			dl = 0;
-			for (i = 0; i < NI_TIMEOUT; i++) {
-				if (ni_readl(dev, NI6143_AI_FIFO_STATUS_REG) &
-				    0x01) {
-					/* Get stranded sample into FIFO */
-					ni_writel(dev, 0x01,
-						  NI6143_AI_FIFO_CTRL_REG);
-					dl = ni_readl(dev,
-						      NI6143_AI_FIFO_DATA_REG);
-					break;
-				}
-			}
-			if (i == NI_TIMEOUT) {
-				dev_err(dev->class_dev, "timeout\n");
-				return -ETIME;
-			}
-			data[n] = (((dl >> 16) & 0xFFFF) + signbits) & 0xFFFF;
-		}
-	} else {
-		for (n = 0; n < insn->n; n++) {
-			ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE,
-				      NISTC_AI_CMD1_REG);
-			for (i = 0; i < NI_TIMEOUT; i++) {
-				if (!(ni_stc_readw(dev, NISTC_AI_STATUS1_REG) &
-				      NISTC_AI_STATUS1_FIFO_E))
-					break;
-			}
-			if (i == NI_TIMEOUT) {
-				dev_err(dev->class_dev, "timeout\n");
-				return -ETIME;
-			}
-			if (devpriv->is_m_series) {
-				dl = ni_readl(dev, NI_M_AI_FIFO_DATA_REG);
-				dl &= mask;
-				data[n] = dl;
-			} else {
-				d = ni_readw(dev, NI_E_AI_FIFO_DATA_REG);
-				d += signbits;	/* subtle: needs to be short addition */
-				data[n] = d;
-			}
-		}
-	}
-	return insn->n;
-}
-
-static int ni_ns_to_timer(const struct comedi_device *dev, unsigned nanosec,
-			  unsigned int flags)
-{
-	struct ni_private *devpriv = dev->private;
-	int divider;
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		divider = (nanosec + devpriv->clock_ns / 2) / devpriv->clock_ns;
-		break;
-	case CMDF_ROUND_DOWN:
-		divider = (nanosec) / devpriv->clock_ns;
-		break;
-	case CMDF_ROUND_UP:
-		divider = (nanosec + devpriv->clock_ns - 1) / devpriv->clock_ns;
-		break;
-	}
-	return divider - 1;
-}
-
-static unsigned ni_timer_to_ns(const struct comedi_device *dev, int timer)
-{
-	struct ni_private *devpriv = dev->private;
-
-	return devpriv->clock_ns * (timer + 1);
-}
-
-static unsigned ni_min_ai_scan_period_ns(struct comedi_device *dev,
-					 unsigned num_channels)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-
-	/* simultaneously-sampled inputs */
-	if (devpriv->is_611x || devpriv->is_6143)
-		return board->ai_speed;
-
-	/* multiplexed inputs */
-	return board->ai_speed * num_channels;
-}
-
-static int ni_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
-			 struct comedi_cmd *cmd)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int tmp;
-	unsigned int sources;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src,
-					TRIG_NOW | TRIG_INT | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT);
-
-	sources = TRIG_TIMER | TRIG_EXT;
-	if (devpriv->is_611x || devpriv->is_6143)
-		sources |= TRIG_NOW;
-	err |= comedi_check_trigger_src(&cmd->convert_src, sources);
-
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-	case TRIG_INT:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		tmp = CR_CHAN(cmd->start_arg);
-
-		if (tmp > 16)
-			tmp = 16;
-		tmp |= (cmd->start_arg & (CR_INVERT | CR_EDGE));
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, tmp);
-		break;
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-			ni_min_ai_scan_period_ns(dev, cmd->chanlist_len));
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-						    devpriv->clock_ns *
-						    0xffffff);
-	} else if (cmd->scan_begin_src == TRIG_EXT) {
-		/* external trigger */
-		unsigned int tmp = CR_CHAN(cmd->scan_begin_arg);
-
-		if (tmp > 16)
-			tmp = 16;
-		tmp |= (cmd->scan_begin_arg & (CR_INVERT | CR_EDGE));
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, tmp);
-	} else {		/* TRIG_OTHER */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		if (devpriv->is_611x || devpriv->is_6143) {
-			err |= comedi_check_trigger_arg_is(&cmd->convert_arg,
-							   0);
-		} else {
-			err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-							    board->ai_speed);
-			err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
-							    devpriv->clock_ns *
-							    0xffff);
-		}
-	} else if (cmd->convert_src == TRIG_EXT) {
-		/* external trigger */
-		unsigned int tmp = CR_CHAN(cmd->convert_arg);
-
-		if (tmp > 16)
-			tmp = 16;
-		tmp |= (cmd->convert_arg & (CR_ALT_FILTER | CR_INVERT));
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, tmp);
-	} else if (cmd->convert_src == TRIG_NOW) {
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		unsigned int max_count = 0x01000000;
-
-		if (devpriv->is_611x)
-			max_count -= num_adc_stages_611x;
-		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, max_count);
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	} else {
-		/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-	}
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		tmp = cmd->scan_begin_arg;
-		cmd->scan_begin_arg =
-		    ni_timer_to_ns(dev, ni_ns_to_timer(dev,
-						       cmd->scan_begin_arg,
-						       cmd->flags));
-		if (tmp != cmd->scan_begin_arg)
-			err++;
-	}
-	if (cmd->convert_src == TRIG_TIMER) {
-		if (!devpriv->is_611x && !devpriv->is_6143) {
-			tmp = cmd->convert_arg;
-			cmd->convert_arg =
-			    ni_timer_to_ns(dev, ni_ns_to_timer(dev,
-							       cmd->convert_arg,
-							       cmd->flags));
-			if (tmp != cmd->convert_arg)
-				err++;
-			if (cmd->scan_begin_src == TRIG_TIMER &&
-			    cmd->scan_begin_arg <
-			    cmd->convert_arg * cmd->scan_end_arg) {
-				cmd->scan_begin_arg =
-				    cmd->convert_arg * cmd->scan_end_arg;
-				err++;
-			}
-		}
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int ni_ai_inttrig(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 unsigned int trig_num)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	ni_stc_writew(dev, NISTC_AI_CMD2_START1_PULSE | devpriv->ai_cmd2,
-		      NISTC_AI_CMD2_REG);
-	s->async->inttrig = NULL;
-
-	return 1;
-}
-
-static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-	const struct comedi_cmd *cmd = &s->async->cmd;
-	int timer;
-	int mode1 = 0;		/* mode1 is needed for both stop and convert */
-	int mode2 = 0;
-	int start_stop_select = 0;
-	unsigned int stop_count;
-	int interrupt_a_enable = 0;
-	unsigned ai_trig;
-
-	if (dev->irq == 0) {
-		dev_err(dev->class_dev, "cannot run command without an irq\n");
-		return -EIO;
-	}
-	ni_clear_ai_fifo(dev);
-
-	ni_load_channelgain_list(dev, s, cmd->chanlist_len, cmd->chanlist);
-
-	/* start configuration */
-	ni_stc_writew(dev, NISTC_RESET_AI_CFG_START, NISTC_RESET_REG);
-
-	/* disable analog triggering for now, since it
-	 * interferes with the use of pfi0 */
-	devpriv->an_trig_etc_reg &= ~NISTC_ATRIG_ETC_ENA;
-	ni_stc_writew(dev, devpriv->an_trig_etc_reg, NISTC_ATRIG_ETC_REG);
-
-	ai_trig = NISTC_AI_TRIG_START2_SEL(0) | NISTC_AI_TRIG_START1_SYNC;
-	switch (cmd->start_src) {
-	case TRIG_INT:
-	case TRIG_NOW:
-		ai_trig |= NISTC_AI_TRIG_START1_EDGE |
-			   NISTC_AI_TRIG_START1_SEL(0);
-		break;
-	case TRIG_EXT:
-		ai_trig |= NISTC_AI_TRIG_START1_SEL(CR_CHAN(cmd->start_arg) +
-						    1);
-
-		if (cmd->start_arg & CR_INVERT)
-			ai_trig |= NISTC_AI_TRIG_START1_POLARITY;
-		if (cmd->start_arg & CR_EDGE)
-			ai_trig |= NISTC_AI_TRIG_START1_EDGE;
-		break;
-	}
-	ni_stc_writew(dev, ai_trig, NISTC_AI_TRIG_SEL_REG);
-
-	mode2 &= ~NISTC_AI_MODE2_PRE_TRIGGER;
-	mode2 &= ~NISTC_AI_MODE2_SC_INIT_LOAD_SRC;
-	mode2 &= ~NISTC_AI_MODE2_SC_RELOAD_MODE;
-	ni_stc_writew(dev, mode2, NISTC_AI_MODE2_REG);
-
-	if (cmd->chanlist_len == 1 || devpriv->is_611x || devpriv->is_6143) {
-		/* logic low */
-		start_stop_select |= NISTC_AI_STOP_POLARITY |
-				     NISTC_AI_STOP_SEL(31) |
-				     NISTC_AI_STOP_SYNC;
-	} else {
-		/*  ai configuration memory */
-		start_stop_select |= NISTC_AI_STOP_SEL(19);
-	}
-	ni_stc_writew(dev, start_stop_select, NISTC_AI_START_STOP_REG);
-
-	devpriv->ai_cmd2 = 0;
-	switch (cmd->stop_src) {
-	case TRIG_COUNT:
-		stop_count = cmd->stop_arg - 1;
-
-		if (devpriv->is_611x) {
-			/*  have to take 3 stage adc pipeline into account */
-			stop_count += num_adc_stages_611x;
-		}
-		/* stage number of scans */
-		ni_stc_writel(dev, stop_count, NISTC_AI_SC_LOADA_REG);
-
-		mode1 |= NISTC_AI_MODE1_START_STOP |
-			 NISTC_AI_MODE1_RSVD |
-			 NISTC_AI_MODE1_TRIGGER_ONCE;
-		ni_stc_writew(dev, mode1, NISTC_AI_MODE1_REG);
-		/* load SC (Scan Count) */
-		ni_stc_writew(dev, NISTC_AI_CMD1_SC_LOAD, NISTC_AI_CMD1_REG);
-
-		if (stop_count == 0) {
-			devpriv->ai_cmd2 |= NISTC_AI_CMD2_END_ON_EOS;
-			interrupt_a_enable |= NISTC_INTA_ENA_AI_STOP;
-			/*  this is required to get the last sample for chanlist_len > 1, not sure why */
-			if (cmd->chanlist_len > 1)
-				start_stop_select |= NISTC_AI_STOP_POLARITY |
-						     NISTC_AI_STOP_EDGE;
-		}
-		break;
-	case TRIG_NONE:
-		/* stage number of scans */
-		ni_stc_writel(dev, 0, NISTC_AI_SC_LOADA_REG);
-
-		mode1 |= NISTC_AI_MODE1_START_STOP |
-			 NISTC_AI_MODE1_RSVD |
-			 NISTC_AI_MODE1_CONTINUOUS;
-		ni_stc_writew(dev, mode1, NISTC_AI_MODE1_REG);
-
-		/* load SC (Scan Count) */
-		ni_stc_writew(dev, NISTC_AI_CMD1_SC_LOAD, NISTC_AI_CMD1_REG);
-		break;
-	}
-
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		/*
-		 * stop bits for non 611x boards
-		 * NISTC_AI_MODE3_SI_TRIG_DELAY=0
-		 * NISTC_AI_MODE2_PRE_TRIGGER=0
-		 * NISTC_AI_START_STOP_REG:
-		 * NISTC_AI_START_POLARITY=0	(?) rising edge
-		 * NISTC_AI_START_EDGE=1	edge triggered
-		 * NISTC_AI_START_SYNC=1	(?)
-		 * NISTC_AI_START_SEL=0		SI_TC
-		 * NISTC_AI_STOP_POLARITY=0	rising edge
-		 * NISTC_AI_STOP_EDGE=0		level
-		 * NISTC_AI_STOP_SYNC=1
-		 * NISTC_AI_STOP_SEL=19		external pin (configuration mem)
-		 */
-		start_stop_select |= NISTC_AI_START_EDGE | NISTC_AI_START_SYNC;
-		ni_stc_writew(dev, start_stop_select, NISTC_AI_START_STOP_REG);
-
-		mode2 &= ~NISTC_AI_MODE2_SI_INIT_LOAD_SRC;	/* A */
-		mode2 |= NISTC_AI_MODE2_SI_RELOAD_MODE(0);
-		/* mode2 |= NISTC_AI_MODE2_SC_RELOAD_MODE; */
-		ni_stc_writew(dev, mode2, NISTC_AI_MODE2_REG);
-
-		/* load SI */
-		timer = ni_ns_to_timer(dev, cmd->scan_begin_arg,
-				       CMDF_ROUND_NEAREST);
-		ni_stc_writel(dev, timer, NISTC_AI_SI_LOADA_REG);
-		ni_stc_writew(dev, NISTC_AI_CMD1_SI_LOAD, NISTC_AI_CMD1_REG);
-		break;
-	case TRIG_EXT:
-		if (cmd->scan_begin_arg & CR_EDGE)
-			start_stop_select |= NISTC_AI_START_EDGE;
-		if (cmd->scan_begin_arg & CR_INVERT)	/* falling edge */
-			start_stop_select |= NISTC_AI_START_POLARITY;
-		if (cmd->scan_begin_src != cmd->convert_src ||
-		    (cmd->scan_begin_arg & ~CR_EDGE) !=
-		    (cmd->convert_arg & ~CR_EDGE))
-			start_stop_select |= NISTC_AI_START_SYNC;
-		start_stop_select |=
-		    NISTC_AI_START_SEL(1 + CR_CHAN(cmd->scan_begin_arg));
-		ni_stc_writew(dev, start_stop_select, NISTC_AI_START_STOP_REG);
-		break;
-	}
-
-	switch (cmd->convert_src) {
-	case TRIG_TIMER:
-	case TRIG_NOW:
-		if (cmd->convert_arg == 0 || cmd->convert_src == TRIG_NOW)
-			timer = 1;
-		else
-			timer = ni_ns_to_timer(dev, cmd->convert_arg,
-					       CMDF_ROUND_NEAREST);
-		/* 0,0 does not work */
-		ni_stc_writew(dev, 1, NISTC_AI_SI2_LOADA_REG);
-		ni_stc_writew(dev, timer, NISTC_AI_SI2_LOADB_REG);
-
-		mode2 &= ~NISTC_AI_MODE2_SI2_INIT_LOAD_SRC;	/* A */
-		mode2 |= NISTC_AI_MODE2_SI2_RELOAD_MODE;	/* alternate */
-		ni_stc_writew(dev, mode2, NISTC_AI_MODE2_REG);
-
-		ni_stc_writew(dev, NISTC_AI_CMD1_SI2_LOAD, NISTC_AI_CMD1_REG);
-
-		mode2 |= NISTC_AI_MODE2_SI2_INIT_LOAD_SRC;	/* B */
-		mode2 |= NISTC_AI_MODE2_SI2_RELOAD_MODE;	/* alternate */
-		ni_stc_writew(dev, mode2, NISTC_AI_MODE2_REG);
-		break;
-	case TRIG_EXT:
-		mode1 |= NISTC_AI_MODE1_CONVERT_SRC(1 + cmd->convert_arg);
-		if ((cmd->convert_arg & CR_INVERT) == 0)
-			mode1 |= NISTC_AI_MODE1_CONVERT_POLARITY;
-		ni_stc_writew(dev, mode1, NISTC_AI_MODE1_REG);
-
-		mode2 |= NISTC_AI_MODE2_SC_GATE_ENA |
-			 NISTC_AI_MODE2_START_STOP_GATE_ENA;
-		ni_stc_writew(dev, mode2, NISTC_AI_MODE2_REG);
-
-		break;
-	}
-
-	if (dev->irq) {
-		/* interrupt on FIFO, errors, SC_TC */
-		interrupt_a_enable |= NISTC_INTA_ENA_AI_ERR |
-				      NISTC_INTA_ENA_AI_SC_TC;
-
-#ifndef PCIDMA
-		interrupt_a_enable |= NISTC_INTA_ENA_AI_FIFO;
-#endif
-
-		if ((cmd->flags & CMDF_WAKE_EOS) ||
-		    (devpriv->ai_cmd2 & NISTC_AI_CMD2_END_ON_EOS)) {
-			/* wake on end-of-scan */
-			devpriv->aimode = AIMODE_SCAN;
-		} else {
-			devpriv->aimode = AIMODE_HALF_FULL;
-		}
-
-		switch (devpriv->aimode) {
-		case AIMODE_HALF_FULL:
-			/*generate FIFO interrupts and DMA requests on half-full */
-#ifdef PCIDMA
-			ni_stc_writew(dev, NISTC_AI_MODE3_FIFO_MODE_HF_E,
-				      NISTC_AI_MODE3_REG);
-#else
-			ni_stc_writew(dev, NISTC_AI_MODE3_FIFO_MODE_HF,
-				      NISTC_AI_MODE3_REG);
-#endif
-			break;
-		case AIMODE_SAMPLE:
-			/*generate FIFO interrupts on non-empty */
-			ni_stc_writew(dev, NISTC_AI_MODE3_FIFO_MODE_NE,
-				      NISTC_AI_MODE3_REG);
-			break;
-		case AIMODE_SCAN:
-#ifdef PCIDMA
-			ni_stc_writew(dev, NISTC_AI_MODE3_FIFO_MODE_NE,
-				      NISTC_AI_MODE3_REG);
-#else
-			ni_stc_writew(dev, NISTC_AI_MODE3_FIFO_MODE_HF,
-				      NISTC_AI_MODE3_REG);
-#endif
-			interrupt_a_enable |= NISTC_INTA_ENA_AI_STOP;
-			break;
-		default:
-			break;
-		}
-
-		/* clear interrupts */
-		ni_stc_writew(dev, NISTC_INTA_ACK_AI_ALL, NISTC_INTA_ACK_REG);
-
-		ni_set_bits(dev, NISTC_INTA_ENA_REG, interrupt_a_enable, 1);
-	} else {
-		/* interrupt on nothing */
-		ni_set_bits(dev, NISTC_INTA_ENA_REG, ~0, 0);
-
-		/* XXX start polling if necessary */
-	}
-
-	/* end configuration */
-	ni_stc_writew(dev, NISTC_RESET_AI_CFG_END, NISTC_RESET_REG);
-
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		ni_stc_writew(dev, NISTC_AI_CMD1_SI2_ARM |
-				   NISTC_AI_CMD1_SI_ARM |
-				   NISTC_AI_CMD1_DIV_ARM |
-				   NISTC_AI_CMD1_SC_ARM,
-			      NISTC_AI_CMD1_REG);
-		break;
-	case TRIG_EXT:
-		ni_stc_writew(dev, NISTC_AI_CMD1_SI2_ARM |
-				   NISTC_AI_CMD1_SI_ARM |	/* XXX ? */
-				   NISTC_AI_CMD1_DIV_ARM |
-				   NISTC_AI_CMD1_SC_ARM,
-			      NISTC_AI_CMD1_REG);
-		break;
-	}
-
-#ifdef PCIDMA
-	{
-		int retval = ni_ai_setup_MITE_dma(dev);
-
-		if (retval)
-			return retval;
-	}
-#endif
-
-	if (cmd->start_src == TRIG_NOW) {
-		ni_stc_writew(dev, NISTC_AI_CMD2_START1_PULSE |
-				   devpriv->ai_cmd2,
-			      NISTC_AI_CMD2_REG);
-		s->async->inttrig = NULL;
-	} else if (cmd->start_src == TRIG_EXT) {
-		s->async->inttrig = NULL;
-	} else {	/* TRIG_INT */
-		s->async->inttrig = ni_ai_inttrig;
-	}
-
-	return 0;
-}
-
-static int ni_ai_insn_config(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn, unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (insn->n < 1)
-		return -EINVAL;
-
-	switch (data[0]) {
-	case INSN_CONFIG_ALT_SOURCE:
-		if (devpriv->is_m_series) {
-			if (data[1] & ~NI_M_CFG_BYPASS_AI_CAL_MASK)
-				return -EINVAL;
-			devpriv->ai_calib_source = data[1];
-		} else if (devpriv->is_6143) {
-			unsigned int calib_source;
-
-			calib_source = data[1] & 0xf;
-
-			devpriv->ai_calib_source = calib_source;
-			ni_writew(dev, calib_source, NI6143_CALIB_CHAN_REG);
-		} else {
-			unsigned int calib_source;
-			unsigned int calib_source_adjust;
-
-			calib_source = data[1] & 0xf;
-			calib_source_adjust = (data[1] >> 4) & 0xff;
-
-			if (calib_source >= 8)
-				return -EINVAL;
-			devpriv->ai_calib_source = calib_source;
-			if (devpriv->is_611x) {
-				ni_writeb(dev, calib_source_adjust,
-					  NI611X_CAL_GAIN_SEL_REG);
-			}
-		}
-		return 2;
-	default:
-		break;
-	}
-
-	return -EINVAL;
-}
-
-static void ni_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s,
-			void *data, unsigned int num_bytes,
-			unsigned int chan_index)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int nsamples = comedi_bytes_to_samples(s, num_bytes);
-	unsigned short *array = data;
-	unsigned int i;
-
-	for (i = 0; i < nsamples; i++) {
-		unsigned int range = CR_RANGE(cmd->chanlist[chan_index]);
-		unsigned short val = array[i];
-
-		/*
-		 * Munge data from unsigned to two's complement for
-		 * bipolar ranges.
-		 */
-		if (comedi_range_is_bipolar(s, range))
-			val = comedi_offset_munge(s, val);
-#ifdef PCIDMA
-		val = cpu_to_le16(val);
-#endif
-		array[i] = val;
-
-		chan_index++;
-		chan_index %= cmd->chanlist_len;
-	}
-}
-
-static int ni_m_series_ao_config_chanlist(struct comedi_device *dev,
-					  struct comedi_subdevice *s,
-					  unsigned int chanspec[],
-					  unsigned int n_chans, int timed)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int range;
-	unsigned int chan;
-	unsigned int conf;
-	int i;
-	int invert = 0;
-
-	if (timed) {
-		for (i = 0; i < s->n_chan; ++i) {
-			devpriv->ao_conf[i] &= ~NI_M_AO_CFG_BANK_UPDATE_TIMED;
-			ni_writeb(dev, devpriv->ao_conf[i],
-				  NI_M_AO_CFG_BANK_REG(i));
-			ni_writeb(dev, 0xf, NI_M_AO_WAVEFORM_ORDER_REG(i));
-		}
-	}
-	for (i = 0; i < n_chans; i++) {
-		const struct comedi_krange *krange;
-
-		chan = CR_CHAN(chanspec[i]);
-		range = CR_RANGE(chanspec[i]);
-		krange = s->range_table->range + range;
-		invert = 0;
-		conf = 0;
-		switch (krange->max - krange->min) {
-		case 20000000:
-			conf |= NI_M_AO_CFG_BANK_REF_INT_10V;
-			ni_writeb(dev, 0, NI_M_AO_REF_ATTENUATION_REG(chan));
-			break;
-		case 10000000:
-			conf |= NI_M_AO_CFG_BANK_REF_INT_5V;
-			ni_writeb(dev, 0, NI_M_AO_REF_ATTENUATION_REG(chan));
-			break;
-		case 4000000:
-			conf |= NI_M_AO_CFG_BANK_REF_INT_10V;
-			ni_writeb(dev, NI_M_AO_REF_ATTENUATION_X5,
-				  NI_M_AO_REF_ATTENUATION_REG(chan));
-			break;
-		case 2000000:
-			conf |= NI_M_AO_CFG_BANK_REF_INT_5V;
-			ni_writeb(dev, NI_M_AO_REF_ATTENUATION_X5,
-				  NI_M_AO_REF_ATTENUATION_REG(chan));
-			break;
-		default:
-			dev_err(dev->class_dev,
-				"bug! unhandled ao reference voltage\n");
-			break;
-		}
-		switch (krange->max + krange->min) {
-		case 0:
-			conf |= NI_M_AO_CFG_BANK_OFFSET_0V;
-			break;
-		case 10000000:
-			conf |= NI_M_AO_CFG_BANK_OFFSET_5V;
-			break;
-		default:
-			dev_err(dev->class_dev,
-				"bug! unhandled ao offset voltage\n");
-			break;
-		}
-		if (timed)
-			conf |= NI_M_AO_CFG_BANK_UPDATE_TIMED;
-		ni_writeb(dev, conf, NI_M_AO_CFG_BANK_REG(chan));
-		devpriv->ao_conf[chan] = conf;
-		ni_writeb(dev, i, NI_M_AO_WAVEFORM_ORDER_REG(chan));
-	}
-	return invert;
-}
-
-static int ni_old_ao_config_chanlist(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     unsigned int chanspec[],
-				     unsigned int n_chans)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int range;
-	unsigned int chan;
-	unsigned int conf;
-	int i;
-	int invert = 0;
-
-	for (i = 0; i < n_chans; i++) {
-		chan = CR_CHAN(chanspec[i]);
-		range = CR_RANGE(chanspec[i]);
-		conf = NI_E_AO_DACSEL(chan);
-
-		if (comedi_range_is_bipolar(s, range)) {
-			conf |= NI_E_AO_CFG_BIP;
-			invert = (s->maxdata + 1) >> 1;
-		} else {
-			invert = 0;
-		}
-		if (comedi_range_is_external(s, range))
-			conf |= NI_E_AO_EXT_REF;
-
-		/* not all boards can deglitch, but this shouldn't hurt */
-		if (chanspec[i] & CR_DEGLITCH)
-			conf |= NI_E_AO_DEGLITCH;
-
-		/* analog reference */
-		/* AREF_OTHER connects AO ground to AI ground, i think */
-		if (CR_AREF(chanspec[i]) == AREF_OTHER)
-			conf |= NI_E_AO_GROUND_REF;
-
-		ni_writew(dev, conf, NI_E_AO_CFG_REG);
-		devpriv->ao_conf[chan] = conf;
-	}
-	return invert;
-}
-
-static int ni_ao_config_chanlist(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 unsigned int chanspec[], unsigned int n_chans,
-				 int timed)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (devpriv->is_m_series)
-		return ni_m_series_ao_config_chanlist(dev, s, chanspec, n_chans,
-						      timed);
-	else
-		return ni_old_ao_config_chanlist(dev, s, chanspec, n_chans);
-}
-
-static int ni_ao_insn_write(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int reg;
-	int i;
-
-	if (devpriv->is_6xxx) {
-		ni_ao_win_outw(dev, 1 << chan, NI671X_AO_IMMEDIATE_REG);
-
-		reg = NI671X_DAC_DIRECT_DATA_REG(chan);
-	} else if (devpriv->is_m_series) {
-		reg = NI_M_DAC_DIRECT_DATA_REG(chan);
-	} else {
-		reg = NI_E_DAC_DIRECT_DATA_REG(chan);
-	}
-
-	ni_ao_config_chanlist(dev, s, &insn->chanspec, 1, 0);
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		if (devpriv->is_6xxx) {
-			/*
-			 * 6xxx boards have bipolar outputs, munge the
-			 * unsigned comedi values to 2's complement
-			 */
-			val = comedi_offset_munge(s, val);
-
-			ni_ao_win_outw(dev, val, reg);
-		} else if (devpriv->is_m_series) {
-			/*
-			 * M-series boards use offset binary values for
-			 * bipolar and uinpolar outputs
-			 */
-			ni_writew(dev, val, reg);
-		} else {
-			/*
-			 * Non-M series boards need two's complement values
-			 * for bipolar ranges.
-			 */
-			if (comedi_range_is_bipolar(s, range))
-				val = comedi_offset_munge(s, val);
-
-			ni_writew(dev, val, reg);
-		}
-	}
-
-	return insn->n;
-}
-
-static int ni_ao_insn_config(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn, unsigned int *data)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	unsigned int nbytes;
-
-	switch (data[0]) {
-	case INSN_CONFIG_GET_HARDWARE_BUFFER_SIZE:
-		switch (data[1]) {
-		case COMEDI_OUTPUT:
-			nbytes = comedi_samples_to_bytes(s,
-							 board->ao_fifo_depth);
-			data[2] = 1 + nbytes;
-			if (devpriv->mite)
-				data[2] += devpriv->mite->fifo_size;
-			break;
-		case COMEDI_INPUT:
-			data[2] = 0;
-			break;
-		default:
-			return -EINVAL;
-		}
-		return 0;
-	default:
-		break;
-	}
-
-	return -EINVAL;
-}
-
-static int ni_ao_inttrig(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 unsigned int trig_num)
-{
-	struct ni_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-	int interrupt_b_bits;
-	int i;
-	static const int timeout = 1000;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	/* Null trig at beginning prevent ao start trigger from executing more than
-	   once per command (and doing things like trying to allocate the ao dma channel
-	   multiple times) */
-	s->async->inttrig = NULL;
-
-	ni_set_bits(dev, NISTC_INTB_ENA_REG,
-		    NISTC_INTB_ENA_AO_FIFO | NISTC_INTB_ENA_AO_ERR, 0);
-	interrupt_b_bits = NISTC_INTB_ENA_AO_ERR;
-#ifdef PCIDMA
-	ni_stc_writew(dev, 1, NISTC_DAC_FIFO_CLR_REG);
-	if (devpriv->is_6xxx)
-		ni_ao_win_outl(dev, 0x6, NI611X_AO_FIFO_OFFSET_LOAD_REG);
-	ret = ni_ao_setup_MITE_dma(dev);
-	if (ret)
-		return ret;
-	ret = ni_ao_wait_for_dma_load(dev);
-	if (ret < 0)
-		return ret;
-#else
-	ret = ni_ao_prep_fifo(dev, s);
-	if (ret == 0)
-		return -EPIPE;
-
-	interrupt_b_bits |= NISTC_INTB_ENA_AO_FIFO;
-#endif
-
-	ni_stc_writew(dev, devpriv->ao_mode3 | NISTC_AO_MODE3_NOT_AN_UPDATE,
-		      NISTC_AO_MODE3_REG);
-	ni_stc_writew(dev, devpriv->ao_mode3, NISTC_AO_MODE3_REG);
-	/* wait for DACs to be loaded */
-	for (i = 0; i < timeout; i++) {
-		udelay(1);
-		if ((ni_stc_readw(dev, NISTC_STATUS2_REG) &
-		     NISTC_STATUS2_AO_TMRDACWRS_IN_PROGRESS) == 0)
-			break;
-	}
-	if (i == timeout) {
-		dev_err(dev->class_dev,
-			"timed out waiting for AO_TMRDACWRs_In_Progress_St to clear\n");
-		return -EIO;
-	}
-	/*
-	 * stc manual says we are need to clear error interrupt after
-	 * AO_TMRDACWRs_In_Progress_St clears
-	 */
-	ni_stc_writew(dev, NISTC_INTB_ACK_AO_ERR, NISTC_INTB_ACK_REG);
-
-	ni_set_bits(dev, NISTC_INTB_ENA_REG, interrupt_b_bits, 1);
-
-	ni_stc_writew(dev, NISTC_AO_CMD1_UI_ARM |
-			   NISTC_AO_CMD1_UC_ARM |
-			   NISTC_AO_CMD1_BC_ARM |
-			   NISTC_AO_CMD1_DAC1_UPDATE_MODE |
-			   NISTC_AO_CMD1_DAC0_UPDATE_MODE |
-			   devpriv->ao_cmd1,
-		      NISTC_AO_CMD1_REG);
-
-	ni_stc_writew(dev, NISTC_AO_CMD2_START1_PULSE | devpriv->ao_cmd2,
-		      NISTC_AO_CMD2_REG);
-
-	return 0;
-}
-
-static int ni_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	const struct comedi_cmd *cmd = &s->async->cmd;
-	int bits;
-	int i;
-	unsigned trigvar;
-	unsigned val;
-
-	if (dev->irq == 0) {
-		dev_err(dev->class_dev, "cannot run command without an irq\n");
-		return -EIO;
-	}
-
-	ni_stc_writew(dev, NISTC_RESET_AO_CFG_START, NISTC_RESET_REG);
-
-	ni_stc_writew(dev, NISTC_AO_CMD1_DISARM, NISTC_AO_CMD1_REG);
-
-	if (devpriv->is_6xxx) {
-		ni_ao_win_outw(dev, NI611X_AO_MISC_CLEAR_WG,
-			       NI611X_AO_MISC_REG);
-
-		bits = 0;
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			int chan;
-
-			chan = CR_CHAN(cmd->chanlist[i]);
-			bits |= 1 << chan;
-			ni_ao_win_outw(dev, chan, NI611X_AO_WAVEFORM_GEN_REG);
-		}
-		ni_ao_win_outw(dev, bits, NI611X_AO_TIMED_REG);
-	}
-
-	ni_ao_config_chanlist(dev, s, cmd->chanlist, cmd->chanlist_len, 1);
-
-	if (cmd->stop_src == TRIG_NONE) {
-		devpriv->ao_mode1 |= NISTC_AO_MODE1_CONTINUOUS;
-		devpriv->ao_mode1 &= ~NISTC_AO_MODE1_TRIGGER_ONCE;
-	} else {
-		devpriv->ao_mode1 &= ~NISTC_AO_MODE1_CONTINUOUS;
-		devpriv->ao_mode1 |= NISTC_AO_MODE1_TRIGGER_ONCE;
-	}
-	ni_stc_writew(dev, devpriv->ao_mode1, NISTC_AO_MODE1_REG);
-
-	val = devpriv->ao_trigger_select;
-	switch (cmd->start_src) {
-	case TRIG_INT:
-	case TRIG_NOW:
-		val &= ~(NISTC_AO_TRIG_START1_POLARITY |
-			 NISTC_AO_TRIG_START1_SEL_MASK);
-		val |= NISTC_AO_TRIG_START1_EDGE |
-		       NISTC_AO_TRIG_START1_SYNC;
-		break;
-	case TRIG_EXT:
-		val = NISTC_AO_TRIG_START1_SEL(CR_CHAN(cmd->start_arg) + 1);
-		if (cmd->start_arg & CR_INVERT) {
-			/* 0=active high, 1=active low. see daq-stc 3-24 (p186) */
-			val |= NISTC_AO_TRIG_START1_POLARITY;
-		}
-		if (cmd->start_arg & CR_EDGE) {
-			/* 0=edge detection disabled, 1=enabled */
-			val |= NISTC_AO_TRIG_START1_EDGE;
-		}
-		ni_stc_writew(dev, devpriv->ao_trigger_select,
-			      NISTC_AO_TRIG_SEL_REG);
-		break;
-	default:
-		BUG();
-		break;
-	}
-	devpriv->ao_trigger_select = val;
-	ni_stc_writew(dev, devpriv->ao_trigger_select, NISTC_AO_TRIG_SEL_REG);
-
-	devpriv->ao_mode3 &= ~NISTC_AO_MODE3_TRIG_LEN;
-	ni_stc_writew(dev, devpriv->ao_mode3, NISTC_AO_MODE3_REG);
-
-	ni_stc_writew(dev, devpriv->ao_mode1, NISTC_AO_MODE1_REG);
-	devpriv->ao_mode2 &= ~NISTC_AO_MODE2_BC_INIT_LOAD_SRC;
-	ni_stc_writew(dev, devpriv->ao_mode2, NISTC_AO_MODE2_REG);
-	if (cmd->stop_src == TRIG_NONE)
-		ni_stc_writel(dev, 0xffffff, NISTC_AO_BC_LOADA_REG);
-	else
-		ni_stc_writel(dev, 0, NISTC_AO_BC_LOADA_REG);
-	ni_stc_writew(dev, NISTC_AO_CMD1_BC_LOAD, NISTC_AO_CMD1_REG);
-	devpriv->ao_mode2 &= ~NISTC_AO_MODE2_UC_INIT_LOAD_SRC;
-	ni_stc_writew(dev, devpriv->ao_mode2, NISTC_AO_MODE2_REG);
-	switch (cmd->stop_src) {
-	case TRIG_COUNT:
-		if (devpriv->is_m_series) {
-			/*  this is how the NI example code does it for m-series boards, verified correct with 6259 */
-			ni_stc_writel(dev, cmd->stop_arg - 1,
-				      NISTC_AO_UC_LOADA_REG);
-			ni_stc_writew(dev, NISTC_AO_CMD1_UC_LOAD,
-				      NISTC_AO_CMD1_REG);
-		} else {
-			ni_stc_writel(dev, cmd->stop_arg,
-				      NISTC_AO_UC_LOADA_REG);
-			ni_stc_writew(dev, NISTC_AO_CMD1_UC_LOAD,
-				      NISTC_AO_CMD1_REG);
-			ni_stc_writel(dev, cmd->stop_arg - 1,
-				      NISTC_AO_UC_LOADA_REG);
-		}
-		break;
-	case TRIG_NONE:
-		ni_stc_writel(dev, 0xffffff, NISTC_AO_UC_LOADA_REG);
-		ni_stc_writew(dev, NISTC_AO_CMD1_UC_LOAD, NISTC_AO_CMD1_REG);
-		ni_stc_writel(dev, 0xffffff, NISTC_AO_UC_LOADA_REG);
-		break;
-	default:
-		ni_stc_writel(dev, 0, NISTC_AO_UC_LOADA_REG);
-		ni_stc_writew(dev, NISTC_AO_CMD1_UC_LOAD, NISTC_AO_CMD1_REG);
-		ni_stc_writel(dev, cmd->stop_arg, NISTC_AO_UC_LOADA_REG);
-	}
-
-	devpriv->ao_mode1 &= ~(NISTC_AO_MODE1_UPDATE_SRC_MASK |
-			       NISTC_AO_MODE1_UI_SRC_MASK |
-			       NISTC_AO_MODE1_UPDATE_SRC_POLARITY |
-			       NISTC_AO_MODE1_UI_SRC_POLARITY);
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:
-		devpriv->ao_cmd2 &= ~NISTC_AO_CMD2_BC_GATE_ENA;
-		trigvar =
-		    ni_ns_to_timer(dev, cmd->scan_begin_arg,
-				   CMDF_ROUND_NEAREST);
-		ni_stc_writel(dev, 1, NISTC_AO_UI_LOADA_REG);
-		ni_stc_writew(dev, NISTC_AO_CMD1_UI_LOAD, NISTC_AO_CMD1_REG);
-		ni_stc_writel(dev, trigvar, NISTC_AO_UI_LOADA_REG);
-		break;
-	case TRIG_EXT:
-		devpriv->ao_mode1 |=
-		    NISTC_AO_MODE1_UPDATE_SRC(cmd->scan_begin_arg);
-		if (cmd->scan_begin_arg & CR_INVERT)
-			devpriv->ao_mode1 |= NISTC_AO_MODE1_UPDATE_SRC_POLARITY;
-		devpriv->ao_cmd2 |= NISTC_AO_CMD2_BC_GATE_ENA;
-		break;
-	default:
-		BUG();
-		break;
-	}
-	ni_stc_writew(dev, devpriv->ao_cmd2, NISTC_AO_CMD2_REG);
-	ni_stc_writew(dev, devpriv->ao_mode1, NISTC_AO_MODE1_REG);
-	devpriv->ao_mode2 &= ~(NISTC_AO_MODE2_UI_RELOAD_MODE(3) |
-			       NISTC_AO_MODE2_UI_INIT_LOAD_SRC);
-	ni_stc_writew(dev, devpriv->ao_mode2, NISTC_AO_MODE2_REG);
-
-	if (cmd->scan_end_arg > 1) {
-		devpriv->ao_mode1 |= NISTC_AO_MODE1_MULTI_CHAN;
-		ni_stc_writew(dev,
-			      NISTC_AO_OUT_CTRL_CHANS(cmd->scan_end_arg - 1) |
-			      NISTC_AO_OUT_CTRL_UPDATE_SEL_HIGHZ,
-			      NISTC_AO_OUT_CTRL_REG);
-	} else {
-		unsigned bits;
-
-		devpriv->ao_mode1 &= ~NISTC_AO_MODE1_MULTI_CHAN;
-		bits = NISTC_AO_OUT_CTRL_UPDATE_SEL_HIGHZ;
-		if (devpriv->is_m_series || devpriv->is_6xxx) {
-			bits |= NISTC_AO_OUT_CTRL_CHANS(0);
-		} else {
-			bits |=
-			    NISTC_AO_OUT_CTRL_CHANS(CR_CHAN(cmd->chanlist[0]));
-		}
-		ni_stc_writew(dev, bits, NISTC_AO_OUT_CTRL_REG);
-	}
-	ni_stc_writew(dev, devpriv->ao_mode1, NISTC_AO_MODE1_REG);
-
-	ni_stc_writew(dev, NISTC_AO_CMD1_DAC1_UPDATE_MODE |
-			   NISTC_AO_CMD1_DAC0_UPDATE_MODE,
-		      NISTC_AO_CMD1_REG);
-
-	devpriv->ao_mode3 |= NISTC_AO_MODE3_STOP_ON_OVERRUN_ERR;
-	ni_stc_writew(dev, devpriv->ao_mode3, NISTC_AO_MODE3_REG);
-
-	devpriv->ao_mode2 &= ~NISTC_AO_MODE2_FIFO_MODE_MASK;
-#ifdef PCIDMA
-	devpriv->ao_mode2 |= NISTC_AO_MODE2_FIFO_MODE_HF_F;
-#else
-	devpriv->ao_mode2 |= NISTC_AO_MODE2_FIFO_MODE_HF;
-#endif
-	devpriv->ao_mode2 &= ~NISTC_AO_MODE2_FIFO_REXMIT_ENA;
-	ni_stc_writew(dev, devpriv->ao_mode2, NISTC_AO_MODE2_REG);
-
-	bits = NISTC_AO_PERSONAL_BC_SRC_SEL |
-	       NISTC_AO_PERSONAL_UPDATE_PW |
-	       NISTC_AO_PERSONAL_TMRDACWR_PW;
-	if (board->ao_fifo_depth)
-		bits |= NISTC_AO_PERSONAL_FIFO_ENA;
-	else
-		bits |= NISTC_AO_PERSONAL_DMA_PIO_CTRL;
-#if 0
-	/*
-	 * F Hess: windows driver does not set NISTC_AO_PERSONAL_NUM_DAC bit
-	 * for 6281, verified with bus analyzer.
-	 */
-	if (devpriv->is_m_series)
-		bits |= NISTC_AO_PERSONAL_NUM_DAC;
-#endif
-	ni_stc_writew(dev, bits, NISTC_AO_PERSONAL_REG);
-	/*  enable sending of ao dma requests */
-	ni_stc_writew(dev, NISTC_AO_START_AOFREQ_ENA, NISTC_AO_START_SEL_REG);
-
-	ni_stc_writew(dev, NISTC_RESET_AO_CFG_END, NISTC_RESET_REG);
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		ni_stc_writew(dev, NISTC_INTB_ACK_AO_BC_TC,
-			      NISTC_INTB_ACK_REG);
-		ni_set_bits(dev, NISTC_INTB_ENA_REG,
-			    NISTC_INTB_ENA_AO_BC_TC, 1);
-	}
-
-	s->async->inttrig = ni_ao_inttrig;
-
-	return 0;
-}
-
-static int ni_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
-			 struct comedi_cmd *cmd)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int tmp;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_INT:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		tmp = CR_CHAN(cmd->start_arg);
-
-		if (tmp > 18)
-			tmp = 18;
-		tmp |= (cmd->start_arg & (CR_INVERT | CR_EDGE));
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, tmp);
-		break;
-	}
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    board->ao_speed);
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-						    devpriv->clock_ns *
-						    0xffffff);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		tmp = cmd->scan_begin_arg;
-		cmd->scan_begin_arg =
-		    ni_timer_to_ns(dev, ni_ns_to_timer(dev,
-						       cmd->scan_begin_arg,
-						       cmd->flags));
-		if (tmp != cmd->scan_begin_arg)
-			err++;
-	}
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int ni_ao_reset(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-
-	ni_release_ao_mite_channel(dev);
-
-	ni_stc_writew(dev, NISTC_RESET_AO_CFG_START, NISTC_RESET_REG);
-	ni_stc_writew(dev, NISTC_AO_CMD1_DISARM, NISTC_AO_CMD1_REG);
-	ni_set_bits(dev, NISTC_INTB_ENA_REG, ~0, 0);
-	ni_stc_writew(dev, NISTC_AO_PERSONAL_BC_SRC_SEL, NISTC_AO_PERSONAL_REG);
-	ni_stc_writew(dev, NISTC_INTB_ACK_AO_ALL, NISTC_INTB_ACK_REG);
-	ni_stc_writew(dev, NISTC_AO_PERSONAL_BC_SRC_SEL |
-			   NISTC_AO_PERSONAL_UPDATE_PW |
-			   NISTC_AO_PERSONAL_TMRDACWR_PW,
-		      NISTC_AO_PERSONAL_REG);
-	ni_stc_writew(dev, 0, NISTC_AO_OUT_CTRL_REG);
-	ni_stc_writew(dev, 0, NISTC_AO_START_SEL_REG);
-	devpriv->ao_cmd1 = 0;
-	ni_stc_writew(dev, devpriv->ao_cmd1, NISTC_AO_CMD1_REG);
-	devpriv->ao_cmd2 = 0;
-	ni_stc_writew(dev, devpriv->ao_cmd2, NISTC_AO_CMD2_REG);
-	devpriv->ao_mode1 = 0;
-	ni_stc_writew(dev, devpriv->ao_mode1, NISTC_AO_MODE1_REG);
-	devpriv->ao_mode2 = 0;
-	ni_stc_writew(dev, devpriv->ao_mode2, NISTC_AO_MODE2_REG);
-	if (devpriv->is_m_series)
-		devpriv->ao_mode3 = NISTC_AO_MODE3_LAST_GATE_DISABLE;
-	else
-		devpriv->ao_mode3 = 0;
-	ni_stc_writew(dev, devpriv->ao_mode3, NISTC_AO_MODE3_REG);
-	devpriv->ao_trigger_select = 0;
-	ni_stc_writew(dev, devpriv->ao_trigger_select,
-		      NISTC_AO_TRIG_SEL_REG);
-	if (devpriv->is_6xxx) {
-		unsigned immediate_bits = 0;
-		unsigned i;
-
-		for (i = 0; i < s->n_chan; ++i)
-			immediate_bits |= 1 << i;
-		ni_ao_win_outw(dev, immediate_bits, NI671X_AO_IMMEDIATE_REG);
-		ni_ao_win_outw(dev, NI611X_AO_MISC_CLEAR_WG,
-			       NI611X_AO_MISC_REG);
-	}
-	ni_stc_writew(dev, NISTC_RESET_AO_CFG_END, NISTC_RESET_REG);
-
-	return 0;
-}
-
-/* digital io */
-
-static int ni_dio_insn_config(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	devpriv->dio_control &= ~NISTC_DIO_CTRL_DIR_MASK;
-	devpriv->dio_control |= NISTC_DIO_CTRL_DIR(s->io_bits);
-	ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG);
-
-	return insn->n;
-}
-
-static int ni_dio_insn_bits(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	/* Make sure we're not using the serial part of the dio */
-	if ((data[0] & (NISTC_DIO_SDIN | NISTC_DIO_SDOUT)) &&
-	    devpriv->serial_interval_ns)
-		return -EBUSY;
-
-	if (comedi_dio_update_state(s, data)) {
-		devpriv->dio_output &= ~NISTC_DIO_OUT_PARALLEL_MASK;
-		devpriv->dio_output |= NISTC_DIO_OUT_PARALLEL(s->state);
-		ni_stc_writew(dev, devpriv->dio_output, NISTC_DIO_OUT_REG);
-	}
-
-	data[1] = ni_stc_readw(dev, NISTC_DIO_IN_REG);
-
-	return insn->n;
-}
-
-static int ni_m_series_dio_insn_config(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_insn *insn,
-				       unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	ni_writel(dev, s->io_bits, NI_M_DIO_DIR_REG);
-
-	return insn->n;
-}
-
-static int ni_m_series_dio_insn_bits(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		ni_writel(dev, s->state, NI_M_DIO_REG);
-
-	data[1] = ni_readl(dev, NI_M_DIO_REG);
-
-	return insn->n;
-}
-
-static int ni_cdio_check_chanlist(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_cmd *cmd)
-{
-	int i;
-
-	for (i = 0; i < cmd->chanlist_len; ++i) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if (chan != i)
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int ni_cdio_cmdtest(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-	int tmp;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	tmp = cmd->scan_begin_arg;
-	tmp &= CR_PACK_FLAGS(NI_M_CDO_MODE_SAMPLE_SRC_MASK, 0, 0, CR_INVERT);
-	if (tmp != cmd->scan_begin_arg)
-		err |= -EINVAL;
-
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	if (cmd->chanlist && cmd->chanlist_len > 0)
-		err |= ni_cdio_check_chanlist(dev, s, cmd);
-
-	if (err)
-		return 5;
-
-	return 0;
-}
-
-static int ni_cdo_inttrig(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  unsigned int trig_num)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	const unsigned timeout = 1000;
-	int retval = 0;
-	unsigned i;
-#ifdef PCIDMA
-	struct ni_private *devpriv = dev->private;
-	unsigned long flags;
-#endif
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	s->async->inttrig = NULL;
-
-	/* read alloc the entire buffer */
-	comedi_buf_read_alloc(s, s->async->prealloc_bufsz);
-
-#ifdef PCIDMA
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->cdo_mite_chan) {
-		mite_prep_dma(devpriv->cdo_mite_chan, 32, 32);
-		mite_dma_arm(devpriv->cdo_mite_chan);
-	} else {
-		dev_err(dev->class_dev, "BUG: no cdo mite channel?\n");
-		retval = -EIO;
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-	if (retval < 0)
-		return retval;
-#endif
-	/*
-	 * XXX not sure what interrupt C group does
-	 * wait for dma to fill output fifo
-	 * ni_writeb(dev, NI_M_INTC_ENA, NI_M_INTC_ENA_REG);
-	 */
-	for (i = 0; i < timeout; ++i) {
-		if (ni_readl(dev, NI_M_CDIO_STATUS_REG) &
-		    NI_M_CDIO_STATUS_CDO_FIFO_FULL)
-			break;
-		udelay(10);
-	}
-	if (i == timeout) {
-		dev_err(dev->class_dev, "dma failed to fill cdo fifo!\n");
-		s->cancel(dev, s);
-		return -EIO;
-	}
-	ni_writel(dev, NI_M_CDO_CMD_ARM |
-		       NI_M_CDO_CMD_ERR_INT_ENA_SET |
-		       NI_M_CDO_CMD_F_E_INT_ENA_SET,
-		  NI_M_CDIO_CMD_REG);
-	return retval;
-}
-
-static int ni_cdio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	const struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned cdo_mode_bits;
-	int retval;
-
-	ni_writel(dev, NI_M_CDO_CMD_RESET, NI_M_CDIO_CMD_REG);
-	cdo_mode_bits = NI_M_CDO_MODE_FIFO_MODE |
-			NI_M_CDO_MODE_HALT_ON_ERROR |
-			NI_M_CDO_MODE_SAMPLE_SRC(CR_CHAN(cmd->scan_begin_arg));
-	if (cmd->scan_begin_arg & CR_INVERT)
-		cdo_mode_bits |= NI_M_CDO_MODE_POLARITY;
-	ni_writel(dev, cdo_mode_bits, NI_M_CDO_MODE_REG);
-	if (s->io_bits) {
-		ni_writel(dev, s->state, NI_M_CDO_FIFO_DATA_REG);
-		ni_writel(dev, NI_M_CDO_CMD_SW_UPDATE, NI_M_CDIO_CMD_REG);
-		ni_writel(dev, s->io_bits, NI_M_CDO_MASK_ENA_REG);
-	} else {
-		dev_err(dev->class_dev,
-			"attempted to run digital output command with no lines configured as outputs\n");
-		return -EIO;
-	}
-	retval = ni_request_cdo_mite_channel(dev);
-	if (retval < 0)
-		return retval;
-
-	s->async->inttrig = ni_cdo_inttrig;
-
-	return 0;
-}
-
-static int ni_cdio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	ni_writel(dev, NI_M_CDO_CMD_DISARM |
-		       NI_M_CDO_CMD_ERR_INT_ENA_CLR |
-		       NI_M_CDO_CMD_F_E_INT_ENA_CLR |
-		       NI_M_CDO_CMD_F_REQ_INT_ENA_CLR,
-		  NI_M_CDIO_CMD_REG);
-	/*
-	 * XXX not sure what interrupt C group does
-	 * ni_writeb(dev, 0, NI_M_INTC_ENA_REG);
-	 */
-	ni_writel(dev, 0, NI_M_CDO_MASK_ENA_REG);
-	ni_release_cdo_mite_channel(dev);
-	return 0;
-}
-
-static void handle_cdio_interrupt(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned cdio_status;
-	struct comedi_subdevice *s = &dev->subdevices[NI_DIO_SUBDEV];
-#ifdef PCIDMA
-	unsigned long flags;
-#endif
-
-	if (!devpriv->is_m_series)
-		return;
-#ifdef PCIDMA
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->cdo_mite_chan) {
-		unsigned cdo_mite_status =
-		    mite_get_status(devpriv->cdo_mite_chan);
-		if (cdo_mite_status & CHSR_LINKC) {
-			writel(CHOR_CLRLC,
-			       devpriv->mite->mite_io_addr +
-			       MITE_CHOR(devpriv->cdo_mite_chan->channel));
-		}
-		mite_sync_output_dma(devpriv->cdo_mite_chan, s);
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-#endif
-
-	cdio_status = ni_readl(dev, NI_M_CDIO_STATUS_REG);
-	if (cdio_status & NI_M_CDIO_STATUS_CDO_ERROR) {
-		/* XXX just guessing this is needed and does something useful */
-		ni_writel(dev, NI_M_CDO_CMD_ERR_INT_CONFIRM,
-			  NI_M_CDIO_CMD_REG);
-		s->async->events |= COMEDI_CB_OVERFLOW;
-	}
-	if (cdio_status & NI_M_CDIO_STATUS_CDO_FIFO_EMPTY) {
-		ni_writel(dev, NI_M_CDO_CMD_F_E_INT_ENA_CLR,
-			  NI_M_CDIO_CMD_REG);
-		/* s->async->events |= COMEDI_CB_EOA; */
-	}
-	comedi_handle_events(dev, s);
-}
-
-static int ni_serial_hw_readwrite8(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned char data_out,
-				   unsigned char *data_in)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int status1;
-	int err = 0, count = 20;
-
-	devpriv->dio_output &= ~NISTC_DIO_OUT_SERIAL_MASK;
-	devpriv->dio_output |= NISTC_DIO_OUT_SERIAL(data_out);
-	ni_stc_writew(dev, devpriv->dio_output, NISTC_DIO_OUT_REG);
-
-	status1 = ni_stc_readw(dev, NISTC_STATUS1_REG);
-	if (status1 & NISTC_STATUS1_SERIO_IN_PROG) {
-		err = -EBUSY;
-		goto Error;
-	}
-
-	devpriv->dio_control |= NISTC_DIO_CTRL_HW_SER_START;
-	ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG);
-	devpriv->dio_control &= ~NISTC_DIO_CTRL_HW_SER_START;
-
-	/* Wait until STC says we're done, but don't loop infinitely. */
-	while ((status1 = ni_stc_readw(dev, NISTC_STATUS1_REG)) &
-	       NISTC_STATUS1_SERIO_IN_PROG) {
-		/* Delay one bit per loop */
-		udelay((devpriv->serial_interval_ns + 999) / 1000);
-		if (--count < 0) {
-			dev_err(dev->class_dev,
-				"SPI serial I/O didn't finish in time!\n");
-			err = -ETIME;
-			goto Error;
-		}
-	}
-
-	/*
-	 * Delay for last bit. This delay is absolutely necessary, because
-	 * NISTC_STATUS1_SERIO_IN_PROG goes high one bit too early.
-	 */
-	udelay((devpriv->serial_interval_ns + 999) / 1000);
-
-	if (data_in)
-		*data_in = ni_stc_readw(dev, NISTC_DIO_SERIAL_IN_REG);
-
-Error:
-	ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG);
-
-	return err;
-}
-
-static int ni_serial_sw_readwrite8(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned char data_out,
-				   unsigned char *data_in)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned char mask, input = 0;
-
-	/* Wait for one bit before transfer */
-	udelay((devpriv->serial_interval_ns + 999) / 1000);
-
-	for (mask = 0x80; mask; mask >>= 1) {
-		/* Output current bit; note that we cannot touch s->state
-		   because it is a per-subdevice field, and serial is
-		   a separate subdevice from DIO. */
-		devpriv->dio_output &= ~NISTC_DIO_SDOUT;
-		if (data_out & mask)
-			devpriv->dio_output |= NISTC_DIO_SDOUT;
-		ni_stc_writew(dev, devpriv->dio_output, NISTC_DIO_OUT_REG);
-
-		/* Assert SDCLK (active low, inverted), wait for half of
-		   the delay, deassert SDCLK, and wait for the other half. */
-		devpriv->dio_control |= NISTC_DIO_SDCLK;
-		ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG);
-
-		udelay((devpriv->serial_interval_ns + 999) / 2000);
-
-		devpriv->dio_control &= ~NISTC_DIO_SDCLK;
-		ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG);
-
-		udelay((devpriv->serial_interval_ns + 999) / 2000);
-
-		/* Input current bit */
-		if (ni_stc_readw(dev, NISTC_DIO_IN_REG) & NISTC_DIO_SDIN)
-			input |= mask;
-	}
-
-	if (data_in)
-		*data_in = input;
-
-	return 0;
-}
-
-static int ni_serial_insn_config(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned clk_fout = devpriv->clock_and_fout;
-	int err = insn->n;
-	unsigned char byte_out, byte_in = 0;
-
-	if (insn->n != 2)
-		return -EINVAL;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SERIAL_CLOCK:
-		devpriv->serial_hw_mode = 1;
-		devpriv->dio_control |= NISTC_DIO_CTRL_HW_SER_ENA;
-
-		if (data[1] == SERIAL_DISABLED) {
-			devpriv->serial_hw_mode = 0;
-			devpriv->dio_control &= ~(NISTC_DIO_CTRL_HW_SER_ENA |
-						  NISTC_DIO_SDCLK);
-			data[1] = SERIAL_DISABLED;
-			devpriv->serial_interval_ns = data[1];
-		} else if (data[1] <= SERIAL_600NS) {
-			/* Warning: this clock speed is too fast to reliably
-			   control SCXI. */
-			devpriv->dio_control &= ~NISTC_DIO_CTRL_HW_SER_TIMEBASE;
-			clk_fout |= NISTC_CLK_FOUT_SLOW_TIMEBASE;
-			clk_fout &= ~NISTC_CLK_FOUT_DIO_SER_OUT_DIV2;
-			data[1] = SERIAL_600NS;
-			devpriv->serial_interval_ns = data[1];
-		} else if (data[1] <= SERIAL_1_2US) {
-			devpriv->dio_control &= ~NISTC_DIO_CTRL_HW_SER_TIMEBASE;
-			clk_fout |= NISTC_CLK_FOUT_SLOW_TIMEBASE |
-				    NISTC_CLK_FOUT_DIO_SER_OUT_DIV2;
-			data[1] = SERIAL_1_2US;
-			devpriv->serial_interval_ns = data[1];
-		} else if (data[1] <= SERIAL_10US) {
-			devpriv->dio_control |= NISTC_DIO_CTRL_HW_SER_TIMEBASE;
-			clk_fout |= NISTC_CLK_FOUT_SLOW_TIMEBASE |
-				    NISTC_CLK_FOUT_DIO_SER_OUT_DIV2;
-			/* Note: NISTC_CLK_FOUT_DIO_SER_OUT_DIV2 only affects
-			   600ns/1.2us. If you turn divide_by_2 off with the
-			   slow clock, you will still get 10us, except then
-			   all your delays are wrong. */
-			data[1] = SERIAL_10US;
-			devpriv->serial_interval_ns = data[1];
-		} else {
-			devpriv->dio_control &= ~(NISTC_DIO_CTRL_HW_SER_ENA |
-						  NISTC_DIO_SDCLK);
-			devpriv->serial_hw_mode = 0;
-			data[1] = (data[1] / 1000) * 1000;
-			devpriv->serial_interval_ns = data[1];
-		}
-		devpriv->clock_and_fout = clk_fout;
-
-		ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG);
-		ni_stc_writew(dev, devpriv->clock_and_fout, NISTC_CLK_FOUT_REG);
-		return 1;
-
-	case INSN_CONFIG_BIDIRECTIONAL_DATA:
-
-		if (devpriv->serial_interval_ns == 0)
-			return -EINVAL;
-
-		byte_out = data[1] & 0xFF;
-
-		if (devpriv->serial_hw_mode) {
-			err = ni_serial_hw_readwrite8(dev, s, byte_out,
-						      &byte_in);
-		} else if (devpriv->serial_interval_ns > 0) {
-			err = ni_serial_sw_readwrite8(dev, s, byte_out,
-						      &byte_in);
-		} else {
-			dev_err(dev->class_dev, "serial disabled!\n");
-			return -EINVAL;
-		}
-		if (err < 0)
-			return err;
-		data[1] = byte_in & 0xFF;
-		return insn->n;
-
-		break;
-	default:
-		return -EINVAL;
-	}
-}
-
-static void init_ao_67xx(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	int i;
-
-	for (i = 0; i < s->n_chan; i++) {
-		ni_ao_win_outw(dev, NI_E_AO_DACSEL(i) | 0x0,
-			       NI67XX_AO_CFG2_REG);
-	}
-	ni_ao_win_outw(dev, 0x0, NI67XX_AO_SP_UPDATES_REG);
-}
-
-static const struct mio_regmap ni_gpct_to_stc_regmap[] = {
-	[NITIO_G0_AUTO_INC]	= { NISTC_G0_AUTOINC_REG, 2 },
-	[NITIO_G1_AUTO_INC]	= { NISTC_G1_AUTOINC_REG, 2 },
-	[NITIO_G0_CMD]		= { NISTC_G0_CMD_REG, 2 },
-	[NITIO_G1_CMD]		= { NISTC_G1_CMD_REG, 2 },
-	[NITIO_G0_HW_SAVE]	= { NISTC_G0_HW_SAVE_REG, 4 },
-	[NITIO_G1_HW_SAVE]	= { NISTC_G1_HW_SAVE_REG, 4 },
-	[NITIO_G0_SW_SAVE]	= { NISTC_G0_SAVE_REG, 4 },
-	[NITIO_G1_SW_SAVE]	= { NISTC_G1_SAVE_REG, 4 },
-	[NITIO_G0_MODE]		= { NISTC_G0_MODE_REG, 2 },
-	[NITIO_G1_MODE]		= { NISTC_G1_MODE_REG, 2 },
-	[NITIO_G0_LOADA]	= { NISTC_G0_LOADA_REG, 4 },
-	[NITIO_G1_LOADA]	= { NISTC_G1_LOADA_REG, 4 },
-	[NITIO_G0_LOADB]	= { NISTC_G0_LOADB_REG, 4 },
-	[NITIO_G1_LOADB]	= { NISTC_G1_LOADB_REG, 4 },
-	[NITIO_G0_INPUT_SEL]	= { NISTC_G0_INPUT_SEL_REG, 2 },
-	[NITIO_G1_INPUT_SEL]	= { NISTC_G1_INPUT_SEL_REG, 2 },
-	[NITIO_G0_CNT_MODE]	= { 0x1b0, 2 },	/* M-Series only */
-	[NITIO_G1_CNT_MODE]	= { 0x1b2, 2 },	/* M-Series only */
-	[NITIO_G0_GATE2]	= { 0x1b4, 2 },	/* M-Series only */
-	[NITIO_G1_GATE2]	= { 0x1b6, 2 },	/* M-Series only */
-	[NITIO_G01_STATUS]	= { NISTC_G01_STATUS_REG, 2 },
-	[NITIO_G01_RESET]	= { NISTC_RESET_REG, 2 },
-	[NITIO_G01_STATUS1]	= { NISTC_STATUS1_REG, 2 },
-	[NITIO_G01_STATUS2]	= { NISTC_STATUS2_REG, 2 },
-	[NITIO_G0_DMA_CFG]	= { 0x1b8, 2 },	/* M-Series only */
-	[NITIO_G1_DMA_CFG]	= { 0x1ba, 2 },	/* M-Series only */
-	[NITIO_G0_DMA_STATUS]	= { 0x1b8, 2 },	/* M-Series only */
-	[NITIO_G1_DMA_STATUS]	= { 0x1ba, 2 },	/* M-Series only */
-	[NITIO_G0_ABZ]		= { 0x1c0, 2 },	/* M-Series only */
-	[NITIO_G1_ABZ]		= { 0x1c2, 2 },	/* M-Series only */
-	[NITIO_G0_INT_ACK]	= { NISTC_INTA_ACK_REG, 2 },
-	[NITIO_G1_INT_ACK]	= { NISTC_INTB_ACK_REG, 2 },
-	[NITIO_G0_STATUS]	= { NISTC_AI_STATUS1_REG, 2 },
-	[NITIO_G1_STATUS]	= { NISTC_AO_STATUS1_REG, 2 },
-	[NITIO_G0_INT_ENA]	= { NISTC_INTA_ENA_REG, 2 },
-	[NITIO_G1_INT_ENA]	= { NISTC_INTB_ENA_REG, 2 },
-};
-
-static unsigned int ni_gpct_to_stc_register(struct comedi_device *dev,
-					    enum ni_gpct_register reg)
-{
-	const struct mio_regmap *regmap;
-
-	if (reg < ARRAY_SIZE(ni_gpct_to_stc_regmap)) {
-		regmap = &ni_gpct_to_stc_regmap[reg];
-	} else {
-		dev_warn(dev->class_dev, "%s: unhandled register=0x%x\n",
-			 __func__, reg);
-		return 0;
-	}
-
-	return regmap->mio_reg;
-}
-
-static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits,
-				   enum ni_gpct_register reg)
-{
-	struct comedi_device *dev = counter->counter_dev->dev;
-	unsigned int stc_register = ni_gpct_to_stc_register(dev, reg);
-	static const unsigned gpct_interrupt_a_enable_mask =
-	    NISTC_INTA_ENA_G0_GATE | NISTC_INTA_ENA_G0_TC;
-	static const unsigned gpct_interrupt_b_enable_mask =
-	    NISTC_INTB_ENA_G1_GATE | NISTC_INTB_ENA_G1_TC;
-
-	if (stc_register == 0)
-		return;
-
-	switch (reg) {
-		/* m-series only registers */
-	case NITIO_G0_CNT_MODE:
-	case NITIO_G1_CNT_MODE:
-	case NITIO_G0_GATE2:
-	case NITIO_G1_GATE2:
-	case NITIO_G0_DMA_CFG:
-	case NITIO_G1_DMA_CFG:
-	case NITIO_G0_ABZ:
-	case NITIO_G1_ABZ:
-		ni_writew(dev, bits, stc_register);
-		break;
-
-		/* 32 bit registers */
-	case NITIO_G0_LOADA:
-	case NITIO_G1_LOADA:
-	case NITIO_G0_LOADB:
-	case NITIO_G1_LOADB:
-		ni_stc_writel(dev, bits, stc_register);
-		break;
-
-		/* 16 bit registers */
-	case NITIO_G0_INT_ENA:
-		BUG_ON(bits & ~gpct_interrupt_a_enable_mask);
-		ni_set_bitfield(dev, stc_register,
-				gpct_interrupt_a_enable_mask, bits);
-		break;
-	case NITIO_G1_INT_ENA:
-		BUG_ON(bits & ~gpct_interrupt_b_enable_mask);
-		ni_set_bitfield(dev, stc_register,
-				gpct_interrupt_b_enable_mask, bits);
-		break;
-	case NITIO_G01_RESET:
-		BUG_ON(bits & ~(NISTC_RESET_G0 | NISTC_RESET_G1));
-		/* fall-through */
-	default:
-		ni_stc_writew(dev, bits, stc_register);
-	}
-}
-
-static unsigned ni_gpct_read_register(struct ni_gpct *counter,
-				      enum ni_gpct_register reg)
-{
-	struct comedi_device *dev = counter->counter_dev->dev;
-	unsigned int stc_register = ni_gpct_to_stc_register(dev, reg);
-
-	if (stc_register == 0)
-		return 0;
-
-	switch (reg) {
-		/* m-series only registers */
-	case NITIO_G0_DMA_STATUS:
-	case NITIO_G1_DMA_STATUS:
-		return ni_readw(dev, stc_register);
-
-		/* 32 bit registers */
-	case NITIO_G0_HW_SAVE:
-	case NITIO_G1_HW_SAVE:
-	case NITIO_G0_SW_SAVE:
-	case NITIO_G1_SW_SAVE:
-		return ni_stc_readl(dev, stc_register);
-
-		/* 16 bit registers */
-	default:
-		return ni_stc_readw(dev, stc_register);
-	}
-}
-
-static int ni_freq_out_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int val = NISTC_CLK_FOUT_TO_DIVIDER(devpriv->clock_and_fout);
-	int i;
-
-	for (i = 0; i < insn->n; i++)
-		data[i] = val;
-
-	return insn->n;
-}
-
-static int ni_freq_out_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (insn->n) {
-		unsigned int val = data[insn->n - 1];
-
-		devpriv->clock_and_fout &= ~NISTC_CLK_FOUT_ENA;
-		ni_stc_writew(dev, devpriv->clock_and_fout, NISTC_CLK_FOUT_REG);
-		devpriv->clock_and_fout &= ~NISTC_CLK_FOUT_DIVIDER_MASK;
-
-		/* use the last data value to set the fout divider */
-		devpriv->clock_and_fout |= NISTC_CLK_FOUT_DIVIDER(val);
-
-		devpriv->clock_and_fout |= NISTC_CLK_FOUT_ENA;
-		ni_stc_writew(dev, devpriv->clock_and_fout, NISTC_CLK_FOUT_REG);
-	}
-	return insn->n;
-}
-
-static int ni_freq_out_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		switch (data[1]) {
-		case NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC:
-			devpriv->clock_and_fout &= ~NISTC_CLK_FOUT_TIMEBASE_SEL;
-			break;
-		case NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC:
-			devpriv->clock_and_fout |= NISTC_CLK_FOUT_TIMEBASE_SEL;
-			break;
-		default:
-			return -EINVAL;
-		}
-		ni_stc_writew(dev, devpriv->clock_and_fout, NISTC_CLK_FOUT_REG);
-		break;
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		if (devpriv->clock_and_fout & NISTC_CLK_FOUT_TIMEBASE_SEL) {
-			data[1] = NI_FREQ_OUT_TIMEBASE_2_CLOCK_SRC;
-			data[2] = TIMEBASE_2_NS;
-		} else {
-			data[1] = NI_FREQ_OUT_TIMEBASE_1_DIV_2_CLOCK_SRC;
-			data[2] = TIMEBASE_1_NS * 2;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-	return insn->n;
-}
-
-static int ni_8255_callback(struct comedi_device *dev,
-			    int dir, int port, int data, unsigned long iobase)
-{
-	if (dir) {
-		ni_writeb(dev, data, iobase + 2 * port);
-		return 0;
-	}
-
-	return ni_readb(dev, iobase + 2 * port);
-}
-
-static int ni_get_pwm_config(struct comedi_device *dev, unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	data[1] = devpriv->pwm_up_count * devpriv->clock_ns;
-	data[2] = devpriv->pwm_down_count * devpriv->clock_ns;
-	return 3;
-}
-
-static int ni_m_series_pwm_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned up_count, down_count;
-
-	switch (data[0]) {
-	case INSN_CONFIG_PWM_OUTPUT:
-		switch (data[1]) {
-		case CMDF_ROUND_NEAREST:
-			up_count =
-			    (data[2] +
-			     devpriv->clock_ns / 2) / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_DOWN:
-			up_count = data[2] / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_UP:
-			up_count =
-			    (data[2] + devpriv->clock_ns -
-			     1) / devpriv->clock_ns;
-			break;
-		default:
-			return -EINVAL;
-		}
-		switch (data[3]) {
-		case CMDF_ROUND_NEAREST:
-			down_count =
-			    (data[4] +
-			     devpriv->clock_ns / 2) / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_DOWN:
-			down_count = data[4] / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_UP:
-			down_count =
-			    (data[4] + devpriv->clock_ns -
-			     1) / devpriv->clock_ns;
-			break;
-		default:
-			return -EINVAL;
-		}
-		if (up_count * devpriv->clock_ns != data[2] ||
-		    down_count * devpriv->clock_ns != data[4]) {
-			data[2] = up_count * devpriv->clock_ns;
-			data[4] = down_count * devpriv->clock_ns;
-			return -EAGAIN;
-		}
-		ni_writel(dev, NI_M_CAL_PWM_HIGH_TIME(up_count) |
-			       NI_M_CAL_PWM_LOW_TIME(down_count),
-			  NI_M_CAL_PWM_REG);
-		devpriv->pwm_up_count = up_count;
-		devpriv->pwm_down_count = down_count;
-		return 5;
-	case INSN_CONFIG_GET_PWM_OUTPUT:
-		return ni_get_pwm_config(dev, data);
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int ni_6143_pwm_config(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned up_count, down_count;
-
-	switch (data[0]) {
-	case INSN_CONFIG_PWM_OUTPUT:
-		switch (data[1]) {
-		case CMDF_ROUND_NEAREST:
-			up_count =
-			    (data[2] +
-			     devpriv->clock_ns / 2) / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_DOWN:
-			up_count = data[2] / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_UP:
-			up_count =
-			    (data[2] + devpriv->clock_ns -
-			     1) / devpriv->clock_ns;
-			break;
-		default:
-			return -EINVAL;
-		}
-		switch (data[3]) {
-		case CMDF_ROUND_NEAREST:
-			down_count =
-			    (data[4] +
-			     devpriv->clock_ns / 2) / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_DOWN:
-			down_count = data[4] / devpriv->clock_ns;
-			break;
-		case CMDF_ROUND_UP:
-			down_count =
-			    (data[4] + devpriv->clock_ns -
-			     1) / devpriv->clock_ns;
-			break;
-		default:
-			return -EINVAL;
-		}
-		if (up_count * devpriv->clock_ns != data[2] ||
-		    down_count * devpriv->clock_ns != data[4]) {
-			data[2] = up_count * devpriv->clock_ns;
-			data[4] = down_count * devpriv->clock_ns;
-			return -EAGAIN;
-		}
-		ni_writel(dev, up_count, NI6143_CALIB_HI_TIME_REG);
-		devpriv->pwm_up_count = up_count;
-		ni_writel(dev, down_count, NI6143_CALIB_LO_TIME_REG);
-		devpriv->pwm_down_count = down_count;
-		return 5;
-	case INSN_CONFIG_GET_PWM_OUTPUT:
-		return ni_get_pwm_config(dev, data);
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int pack_mb88341(int addr, int val, int *bitstring)
-{
-	/*
-	   Fujitsu MB 88341
-	   Note that address bits are reversed.  Thanks to
-	   Ingo Keen for noticing this.
-
-	   Note also that the 88341 expects address values from
-	   1-12, whereas we use channel numbers 0-11.  The NI
-	   docs use 1-12, also, so be careful here.
-	 */
-	addr++;
-	*bitstring = ((addr & 0x1) << 11) |
-	    ((addr & 0x2) << 9) |
-	    ((addr & 0x4) << 7) | ((addr & 0x8) << 5) | (val & 0xff);
-	return 12;
-}
-
-static int pack_dac8800(int addr, int val, int *bitstring)
-{
-	*bitstring = ((addr & 0x7) << 8) | (val & 0xff);
-	return 11;
-}
-
-static int pack_dac8043(int addr, int val, int *bitstring)
-{
-	*bitstring = val & 0xfff;
-	return 12;
-}
-
-static int pack_ad8522(int addr, int val, int *bitstring)
-{
-	*bitstring = (val & 0xfff) | (addr ? 0xc000 : 0xa000);
-	return 16;
-}
-
-static int pack_ad8804(int addr, int val, int *bitstring)
-{
-	*bitstring = ((addr & 0xf) << 8) | (val & 0xff);
-	return 12;
-}
-
-static int pack_ad8842(int addr, int val, int *bitstring)
-{
-	*bitstring = ((addr + 1) << 8) | (val & 0xff);
-	return 12;
-}
-
-struct caldac_struct {
-	int n_chans;
-	int n_bits;
-	int (*packbits)(int, int, int *);
-};
-
-static struct caldac_struct caldacs[] = {
-	[mb88341] = {12, 8, pack_mb88341},
-	[dac8800] = {8, 8, pack_dac8800},
-	[dac8043] = {1, 12, pack_dac8043},
-	[ad8522] = {2, 12, pack_ad8522},
-	[ad8804] = {12, 8, pack_ad8804},
-	[ad8842] = {8, 8, pack_ad8842},
-	[ad8804_debug] = {16, 8, pack_ad8804},
-};
-
-static void ni_write_caldac(struct comedi_device *dev, int addr, int val)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	unsigned int loadbit = 0, bits = 0, bit, bitstring = 0;
-	unsigned int cmd;
-	int i;
-	int type;
-
-	if (devpriv->caldacs[addr] == val)
-		return;
-	devpriv->caldacs[addr] = val;
-
-	for (i = 0; i < 3; i++) {
-		type = board->caldac[i];
-		if (type == caldac_none)
-			break;
-		if (addr < caldacs[type].n_chans) {
-			bits = caldacs[type].packbits(addr, val, &bitstring);
-			loadbit = NI_E_SERIAL_CMD_DAC_LD(i);
-			break;
-		}
-		addr -= caldacs[type].n_chans;
-	}
-
-	/* bits will be 0 if there is no caldac for the given addr */
-	if (bits == 0)
-		return;
-
-	for (bit = 1 << (bits - 1); bit; bit >>= 1) {
-		cmd = (bit & bitstring) ? NI_E_SERIAL_CMD_SDATA : 0;
-		ni_writeb(dev, cmd, NI_E_SERIAL_CMD_REG);
-		udelay(1);
-		ni_writeb(dev, NI_E_SERIAL_CMD_SCLK | cmd, NI_E_SERIAL_CMD_REG);
-		udelay(1);
-	}
-	ni_writeb(dev, loadbit, NI_E_SERIAL_CMD_REG);
-	udelay(1);
-	ni_writeb(dev, 0, NI_E_SERIAL_CMD_REG);
-}
-
-static int ni_calib_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	ni_write_caldac(dev, CR_CHAN(insn->chanspec), data[0]);
-
-	return 1;
-}
-
-static int ni_calib_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	data[0] = devpriv->caldacs[CR_CHAN(insn->chanspec)];
-
-	return 1;
-}
-
-static void caldac_setup(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	int i, j;
-	int n_dacs;
-	int n_chans = 0;
-	int n_bits;
-	int diffbits = 0;
-	int type;
-	int chan;
-
-	type = board->caldac[0];
-	if (type == caldac_none)
-		return;
-	n_bits = caldacs[type].n_bits;
-	for (i = 0; i < 3; i++) {
-		type = board->caldac[i];
-		if (type == caldac_none)
-			break;
-		if (caldacs[type].n_bits != n_bits)
-			diffbits = 1;
-		n_chans += caldacs[type].n_chans;
-	}
-	n_dacs = i;
-	s->n_chan = n_chans;
-
-	if (diffbits) {
-		unsigned int *maxdata_list;
-
-		if (n_chans > MAX_N_CALDACS)
-			dev_err(dev->class_dev,
-				"BUG! MAX_N_CALDACS too small\n");
-		s->maxdata_list = maxdata_list = devpriv->caldac_maxdata_list;
-		chan = 0;
-		for (i = 0; i < n_dacs; i++) {
-			type = board->caldac[i];
-			for (j = 0; j < caldacs[type].n_chans; j++) {
-				maxdata_list[chan] =
-				    (1 << caldacs[type].n_bits) - 1;
-				chan++;
-			}
-		}
-
-		for (chan = 0; chan < s->n_chan; chan++)
-			ni_write_caldac(dev, i, s->maxdata_list[i] / 2);
-	} else {
-		type = board->caldac[0];
-		s->maxdata = (1 << caldacs[type].n_bits) - 1;
-
-		for (chan = 0; chan < s->n_chan; chan++)
-			ni_write_caldac(dev, i, s->maxdata / 2);
-	}
-}
-
-static int ni_read_eeprom(struct comedi_device *dev, int addr)
-{
-	unsigned int cmd = NI_E_SERIAL_CMD_EEPROM_CS;
-	int bit;
-	int bitstring;
-
-	bitstring = 0x0300 | ((addr & 0x100) << 3) | (addr & 0xff);
-	ni_writeb(dev, cmd, NI_E_SERIAL_CMD_REG);
-	for (bit = 0x8000; bit; bit >>= 1) {
-		if (bit & bitstring)
-			cmd |= NI_E_SERIAL_CMD_SDATA;
-		else
-			cmd &= ~NI_E_SERIAL_CMD_SDATA;
-
-		ni_writeb(dev, cmd, NI_E_SERIAL_CMD_REG);
-		ni_writeb(dev, NI_E_SERIAL_CMD_SCLK | cmd, NI_E_SERIAL_CMD_REG);
-	}
-	cmd = NI_E_SERIAL_CMD_EEPROM_CS;
-	bitstring = 0;
-	for (bit = 0x80; bit; bit >>= 1) {
-		ni_writeb(dev, cmd, NI_E_SERIAL_CMD_REG);
-		ni_writeb(dev, NI_E_SERIAL_CMD_SCLK | cmd, NI_E_SERIAL_CMD_REG);
-		if (ni_readb(dev, NI_E_STATUS_REG) & NI_E_STATUS_PROMOUT)
-			bitstring |= bit;
-	}
-	ni_writeb(dev, 0, NI_E_SERIAL_CMD_REG);
-
-	return bitstring;
-}
-
-static int ni_eeprom_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	data[0] = ni_read_eeprom(dev, CR_CHAN(insn->chanspec));
-
-	return 1;
-}
-
-static int ni_m_series_eeprom_insn_read(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	data[0] = devpriv->eeprom_buffer[CR_CHAN(insn->chanspec)];
-
-	return 1;
-}
-
-static unsigned ni_old_get_pfi_routing(struct comedi_device *dev,
-				       unsigned chan)
-{
-	/*  pre-m-series boards have fixed signals on pfi pins */
-	switch (chan) {
-	case 0:
-		return NI_PFI_OUTPUT_AI_START1;
-	case 1:
-		return NI_PFI_OUTPUT_AI_START2;
-	case 2:
-		return NI_PFI_OUTPUT_AI_CONVERT;
-	case 3:
-		return NI_PFI_OUTPUT_G_SRC1;
-	case 4:
-		return NI_PFI_OUTPUT_G_GATE1;
-	case 5:
-		return NI_PFI_OUTPUT_AO_UPDATE_N;
-	case 6:
-		return NI_PFI_OUTPUT_AO_START1;
-	case 7:
-		return NI_PFI_OUTPUT_AI_START_PULSE;
-	case 8:
-		return NI_PFI_OUTPUT_G_SRC0;
-	case 9:
-		return NI_PFI_OUTPUT_G_GATE0;
-	default:
-		dev_err(dev->class_dev, "bug, unhandled case in switch.\n");
-		break;
-	}
-	return 0;
-}
-
-static int ni_old_set_pfi_routing(struct comedi_device *dev,
-				  unsigned chan, unsigned source)
-{
-	/*  pre-m-series boards have fixed signals on pfi pins */
-	if (source != ni_old_get_pfi_routing(dev, chan))
-		return -EINVAL;
-	return 2;
-}
-
-static unsigned ni_m_series_get_pfi_routing(struct comedi_device *dev,
-					    unsigned chan)
-{
-	struct ni_private *devpriv = dev->private;
-	const unsigned array_offset = chan / 3;
-
-	return NI_M_PFI_OUT_SEL_TO_SRC(chan,
-				devpriv->pfi_output_select_reg[array_offset]);
-}
-
-static int ni_m_series_set_pfi_routing(struct comedi_device *dev,
-				       unsigned chan, unsigned source)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned index = chan / 3;
-	unsigned short val = devpriv->pfi_output_select_reg[index];
-
-	if ((source & 0x1f) != source)
-		return -EINVAL;
-
-	val &= ~NI_M_PFI_OUT_SEL_MASK(chan);
-	val |= NI_M_PFI_OUT_SEL(chan, source);
-	ni_writew(dev, val, NI_M_PFI_OUT_SEL_REG(index));
-	devpriv->pfi_output_select_reg[index] = val;
-
-	return 2;
-}
-
-static unsigned ni_get_pfi_routing(struct comedi_device *dev, unsigned chan)
-{
-	struct ni_private *devpriv = dev->private;
-
-	return (devpriv->is_m_series)
-			? ni_m_series_get_pfi_routing(dev, chan)
-			: ni_old_get_pfi_routing(dev, chan);
-}
-
-static int ni_set_pfi_routing(struct comedi_device *dev, unsigned chan,
-			      unsigned source)
-{
-	struct ni_private *devpriv = dev->private;
-
-	return (devpriv->is_m_series)
-			? ni_m_series_set_pfi_routing(dev, chan, source)
-			: ni_old_set_pfi_routing(dev, chan, source);
-}
-
-static int ni_config_filter(struct comedi_device *dev,
-			    unsigned pfi_channel,
-			    enum ni_pfi_filter_select filter)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned bits;
-
-	if (!devpriv->is_m_series)
-		return -ENOTSUPP;
-
-	bits = ni_readl(dev, NI_M_PFI_FILTER_REG);
-	bits &= ~NI_M_PFI_FILTER_SEL_MASK(pfi_channel);
-	bits |= NI_M_PFI_FILTER_SEL(pfi_channel, filter);
-	ni_writel(dev, bits, NI_M_PFI_FILTER_REG);
-	return 0;
-}
-
-static int ni_pfi_insn_config(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int chan;
-
-	if (insn->n < 1)
-		return -EINVAL;
-
-	chan = CR_CHAN(insn->chanspec);
-
-	switch (data[0]) {
-	case COMEDI_OUTPUT:
-		ni_set_bits(dev, NISTC_IO_BIDIR_PIN_REG, 1 << chan, 1);
-		break;
-	case COMEDI_INPUT:
-		ni_set_bits(dev, NISTC_IO_BIDIR_PIN_REG, 1 << chan, 0);
-		break;
-	case INSN_CONFIG_DIO_QUERY:
-		data[1] =
-		    (devpriv->io_bidirection_pin_reg & (1 << chan)) ?
-		    COMEDI_OUTPUT : COMEDI_INPUT;
-		return 0;
-	case INSN_CONFIG_SET_ROUTING:
-		return ni_set_pfi_routing(dev, chan, data[1]);
-	case INSN_CONFIG_GET_ROUTING:
-		data[1] = ni_get_pfi_routing(dev, chan);
-		break;
-	case INSN_CONFIG_FILTER:
-		return ni_config_filter(dev, chan, data[1]);
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int ni_pfi_insn_bits(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (!devpriv->is_m_series)
-		return -ENOTSUPP;
-
-	if (comedi_dio_update_state(s, data))
-		ni_writew(dev, s->state, NI_M_PFI_DO_REG);
-
-	data[1] = ni_readw(dev, NI_M_PFI_DI_REG);
-
-	return insn->n;
-}
-
-static int cs5529_wait_for_idle(struct comedi_device *dev)
-{
-	unsigned short status;
-	const int timeout = HZ;
-	int i;
-
-	for (i = 0; i < timeout; i++) {
-		status = ni_ao_win_inw(dev, NI67XX_CAL_STATUS_REG);
-		if ((status & NI67XX_CAL_STATUS_BUSY) == 0)
-			break;
-		set_current_state(TASK_INTERRUPTIBLE);
-		if (schedule_timeout(1))
-			return -EIO;
-	}
-	if (i == timeout) {
-		dev_err(dev->class_dev, "timeout\n");
-		return -ETIME;
-	}
-	return 0;
-}
-
-static void cs5529_command(struct comedi_device *dev, unsigned short value)
-{
-	static const int timeout = 100;
-	int i;
-
-	ni_ao_win_outw(dev, value, NI67XX_CAL_CMD_REG);
-	/* give time for command to start being serially clocked into cs5529.
-	 * this insures that the NI67XX_CAL_STATUS_BUSY bit will get properly
-	 * set before we exit this function.
-	 */
-	for (i = 0; i < timeout; i++) {
-		if (ni_ao_win_inw(dev, NI67XX_CAL_STATUS_REG) &
-		    NI67XX_CAL_STATUS_BUSY)
-			break;
-		udelay(1);
-	}
-	if (i == timeout)
-		dev_err(dev->class_dev,
-			"possible problem - never saw adc go busy?\n");
-}
-
-static int cs5529_do_conversion(struct comedi_device *dev,
-				unsigned short *data)
-{
-	int retval;
-	unsigned short status;
-
-	cs5529_command(dev, CS5529_CMD_CB | CS5529_CMD_SINGLE_CONV);
-	retval = cs5529_wait_for_idle(dev);
-	if (retval) {
-		dev_err(dev->class_dev,
-			"timeout or signal in cs5529_do_conversion()\n");
-		return -ETIME;
-	}
-	status = ni_ao_win_inw(dev, NI67XX_CAL_STATUS_REG);
-	if (status & NI67XX_CAL_STATUS_OSC_DETECT) {
-		dev_err(dev->class_dev,
-			"cs5529 conversion error, status CSS_OSC_DETECT\n");
-		return -EIO;
-	}
-	if (status & NI67XX_CAL_STATUS_OVERRANGE) {
-		dev_err(dev->class_dev,
-			"cs5529 conversion error, overrange (ignoring)\n");
-	}
-	if (data) {
-		*data = ni_ao_win_inw(dev, NI67XX_CAL_DATA_REG);
-		/* cs5529 returns 16 bit signed data in bipolar mode */
-		*data ^= (1 << 15);
-	}
-	return 0;
-}
-
-static int cs5529_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	int n, retval;
-	unsigned short sample;
-	unsigned int channel_select;
-	const unsigned int INTERNAL_REF = 0x1000;
-
-	/* Set calibration adc source.  Docs lie, reference select bits 8 to 11
-	 * do nothing. bit 12 seems to chooses internal reference voltage, bit
-	 * 13 causes the adc input to go overrange (maybe reads external reference?) */
-	if (insn->chanspec & CR_ALT_SOURCE)
-		channel_select = INTERNAL_REF;
-	else
-		channel_select = CR_CHAN(insn->chanspec);
-	ni_ao_win_outw(dev, channel_select, NI67XX_AO_CAL_CHAN_SEL_REG);
-
-	for (n = 0; n < insn->n; n++) {
-		retval = cs5529_do_conversion(dev, &sample);
-		if (retval < 0)
-			return retval;
-		data[n] = sample;
-	}
-	return insn->n;
-}
-
-static void cs5529_config_write(struct comedi_device *dev, unsigned int value,
-				unsigned int reg_select_bits)
-{
-	ni_ao_win_outw(dev, (value >> 16) & 0xff, NI67XX_CAL_CFG_HI_REG);
-	ni_ao_win_outw(dev, value & 0xffff, NI67XX_CAL_CFG_LO_REG);
-	reg_select_bits &= CS5529_CMD_REG_MASK;
-	cs5529_command(dev, CS5529_CMD_CB | reg_select_bits);
-	if (cs5529_wait_for_idle(dev))
-		dev_err(dev->class_dev,
-			"timeout or signal in %s\n", __func__);
-}
-
-static int init_cs5529(struct comedi_device *dev)
-{
-	unsigned int config_bits = CS5529_CFG_PORT_FLAG |
-				   CS5529_CFG_WORD_RATE_2180;
-
-#if 1
-	/* do self-calibration */
-	cs5529_config_write(dev, config_bits | CS5529_CFG_CALIB_BOTH_SELF,
-			    CS5529_CFG_REG);
-	/* need to force a conversion for calibration to run */
-	cs5529_do_conversion(dev, NULL);
-#else
-	/* force gain calibration to 1 */
-	cs5529_config_write(dev, 0x400000, CS5529_GAIN_REG);
-	cs5529_config_write(dev, config_bits | CS5529_CFG_CALIB_OFFSET_SELF,
-			    CS5529_CFG_REG);
-	if (cs5529_wait_for_idle(dev))
-		dev_err(dev->class_dev,
-			"timeout or signal in %s\n", __func__);
-#endif
-	return 0;
-}
-
-/*
- * Find best multiplier/divider to try and get the PLL running at 80 MHz
- * given an arbitrary frequency input clock.
- */
-static int ni_mseries_get_pll_parameters(unsigned reference_period_ns,
-					 unsigned *freq_divider,
-					 unsigned *freq_multiplier,
-					 unsigned *actual_period_ns)
-{
-	unsigned div;
-	unsigned best_div = 1;
-	unsigned mult;
-	unsigned best_mult = 1;
-	static const unsigned pico_per_nano = 1000;
-
-	const unsigned reference_picosec = reference_period_ns * pico_per_nano;
-	/* m-series wants the phased-locked loop to output 80MHz, which is divided by 4 to
-	 * 20 MHz for most timing clocks */
-	static const unsigned target_picosec = 12500;
-	static const unsigned fudge_factor_80_to_20Mhz = 4;
-	int best_period_picosec = 0;
-
-	for (div = 1; div <= NI_M_PLL_MAX_DIVISOR; ++div) {
-		for (mult = 1; mult <= NI_M_PLL_MAX_MULTIPLIER; ++mult) {
-			unsigned new_period_ps =
-			    (reference_picosec * div) / mult;
-			if (abs(new_period_ps - target_picosec) <
-			    abs(best_period_picosec - target_picosec)) {
-				best_period_picosec = new_period_ps;
-				best_div = div;
-				best_mult = mult;
-			}
-		}
-	}
-	if (best_period_picosec == 0)
-		return -EIO;
-
-	*freq_divider = best_div;
-	*freq_multiplier = best_mult;
-	*actual_period_ns =
-	    (best_period_picosec * fudge_factor_80_to_20Mhz +
-	     (pico_per_nano / 2)) / pico_per_nano;
-	return 0;
-}
-
-static int ni_mseries_set_pll_master_clock(struct comedi_device *dev,
-					   unsigned source, unsigned period_ns)
-{
-	struct ni_private *devpriv = dev->private;
-	static const unsigned min_period_ns = 50;
-	static const unsigned max_period_ns = 1000;
-	static const unsigned timeout = 1000;
-	unsigned pll_control_bits;
-	unsigned freq_divider;
-	unsigned freq_multiplier;
-	unsigned rtsi;
-	unsigned i;
-	int retval;
-
-	if (source == NI_MIO_PLL_PXI10_CLOCK)
-		period_ns = 100;
-	/*  these limits are somewhat arbitrary, but NI advertises 1 to 20MHz range so we'll use that */
-	if (period_ns < min_period_ns || period_ns > max_period_ns) {
-		dev_err(dev->class_dev,
-			"%s: you must specify an input clock frequency between %i and %i nanosec for the phased-lock loop\n",
-			__func__, min_period_ns, max_period_ns);
-		return -EINVAL;
-	}
-	devpriv->rtsi_trig_direction_reg &= ~NISTC_RTSI_TRIG_USE_CLK;
-	ni_stc_writew(dev, devpriv->rtsi_trig_direction_reg,
-		      NISTC_RTSI_TRIG_DIR_REG);
-	pll_control_bits = NI_M_PLL_CTRL_ENA | NI_M_PLL_CTRL_VCO_MODE_75_150MHZ;
-	devpriv->clock_and_fout2 |= NI_M_CLK_FOUT2_TIMEBASE1_PLL |
-				    NI_M_CLK_FOUT2_TIMEBASE3_PLL;
-	devpriv->clock_and_fout2 &= ~NI_M_CLK_FOUT2_PLL_SRC_MASK;
-	switch (source) {
-	case NI_MIO_PLL_PXI_STAR_TRIGGER_CLOCK:
-		devpriv->clock_and_fout2 |= NI_M_CLK_FOUT2_PLL_SRC_STAR;
-		break;
-	case NI_MIO_PLL_PXI10_CLOCK:
-		/* pxi clock is 10MHz */
-		devpriv->clock_and_fout2 |= NI_M_CLK_FOUT2_PLL_SRC_PXI10;
-		break;
-	default:
-		for (rtsi = 0; rtsi <= NI_M_MAX_RTSI_CHAN; ++rtsi) {
-			if (source == NI_MIO_PLL_RTSI_CLOCK(rtsi)) {
-				devpriv->clock_and_fout2 |=
-					NI_M_CLK_FOUT2_PLL_SRC_RTSI(rtsi);
-				break;
-			}
-		}
-		if (rtsi > NI_M_MAX_RTSI_CHAN)
-			return -EINVAL;
-		break;
-	}
-	retval = ni_mseries_get_pll_parameters(period_ns,
-					       &freq_divider,
-					       &freq_multiplier,
-					       &devpriv->clock_ns);
-	if (retval < 0) {
-		dev_err(dev->class_dev,
-			"bug, failed to find pll parameters\n");
-		return retval;
-	}
-
-	ni_writew(dev, devpriv->clock_and_fout2, NI_M_CLK_FOUT2_REG);
-	pll_control_bits |= NI_M_PLL_CTRL_DIVISOR(freq_divider) |
-			    NI_M_PLL_CTRL_MULTIPLIER(freq_multiplier);
-
-	ni_writew(dev, pll_control_bits, NI_M_PLL_CTRL_REG);
-	devpriv->clock_source = source;
-	/* it seems to typically take a few hundred microseconds for PLL to lock */
-	for (i = 0; i < timeout; ++i) {
-		if (ni_readw(dev, NI_M_PLL_STATUS_REG) & NI_M_PLL_STATUS_LOCKED)
-			break;
-		udelay(1);
-	}
-	if (i == timeout) {
-		dev_err(dev->class_dev,
-			"%s: timed out waiting for PLL to lock to reference clock source %i with period %i ns\n",
-			__func__, source, period_ns);
-		return -ETIMEDOUT;
-	}
-	return 3;
-}
-
-static int ni_set_master_clock(struct comedi_device *dev,
-			       unsigned source, unsigned period_ns)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (source == NI_MIO_INTERNAL_CLOCK) {
-		devpriv->rtsi_trig_direction_reg &= ~NISTC_RTSI_TRIG_USE_CLK;
-		ni_stc_writew(dev, devpriv->rtsi_trig_direction_reg,
-			      NISTC_RTSI_TRIG_DIR_REG);
-		devpriv->clock_ns = TIMEBASE_1_NS;
-		if (devpriv->is_m_series) {
-			devpriv->clock_and_fout2 &=
-			    ~(NI_M_CLK_FOUT2_TIMEBASE1_PLL |
-			      NI_M_CLK_FOUT2_TIMEBASE3_PLL);
-			ni_writew(dev, devpriv->clock_and_fout2,
-				  NI_M_CLK_FOUT2_REG);
-			ni_writew(dev, 0, NI_M_PLL_CTRL_REG);
-		}
-		devpriv->clock_source = source;
-	} else {
-		if (devpriv->is_m_series) {
-			return ni_mseries_set_pll_master_clock(dev, source,
-							       period_ns);
-		} else {
-			if (source == NI_MIO_RTSI_CLOCK) {
-				devpriv->rtsi_trig_direction_reg |=
-				    NISTC_RTSI_TRIG_USE_CLK;
-				ni_stc_writew(dev,
-					      devpriv->rtsi_trig_direction_reg,
-					      NISTC_RTSI_TRIG_DIR_REG);
-				if (period_ns == 0) {
-					dev_err(dev->class_dev,
-						"we don't handle an unspecified clock period correctly yet, returning error\n");
-					return -EINVAL;
-				}
-				devpriv->clock_ns = period_ns;
-				devpriv->clock_source = source;
-			} else {
-				return -EINVAL;
-			}
-		}
-	}
-	return 3;
-}
-
-static int ni_valid_rtsi_output_source(struct comedi_device *dev,
-				       unsigned chan, unsigned source)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (chan >= NISTC_RTSI_TRIG_NUM_CHAN(devpriv->is_m_series)) {
-		if (chan == NISTC_RTSI_TRIG_OLD_CLK_CHAN) {
-			if (source == NI_RTSI_OUTPUT_RTSI_OSC)
-				return 1;
-
-			dev_err(dev->class_dev,
-				"%s: invalid source for channel=%i, channel %i is always the RTSI clock for pre-m-series boards\n",
-				__func__, chan, NISTC_RTSI_TRIG_OLD_CLK_CHAN);
-			return 0;
-		}
-		return 0;
-	}
-	switch (source) {
-	case NI_RTSI_OUTPUT_ADR_START1:
-	case NI_RTSI_OUTPUT_ADR_START2:
-	case NI_RTSI_OUTPUT_SCLKG:
-	case NI_RTSI_OUTPUT_DACUPDN:
-	case NI_RTSI_OUTPUT_DA_START1:
-	case NI_RTSI_OUTPUT_G_SRC0:
-	case NI_RTSI_OUTPUT_G_GATE0:
-	case NI_RTSI_OUTPUT_RGOUT0:
-	case NI_RTSI_OUTPUT_RTSI_BRD_0:
-		return 1;
-	case NI_RTSI_OUTPUT_RTSI_OSC:
-		return (devpriv->is_m_series) ? 1 : 0;
-	default:
-		return 0;
-	}
-}
-
-static int ni_set_rtsi_routing(struct comedi_device *dev,
-			       unsigned chan, unsigned src)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (ni_valid_rtsi_output_source(dev, chan, src) == 0)
-		return -EINVAL;
-	if (chan < 4) {
-		devpriv->rtsi_trig_a_output_reg &= ~NISTC_RTSI_TRIG_MASK(chan);
-		devpriv->rtsi_trig_a_output_reg |= NISTC_RTSI_TRIG(chan, src);
-		ni_stc_writew(dev, devpriv->rtsi_trig_a_output_reg,
-			      NISTC_RTSI_TRIGA_OUT_REG);
-	} else if (chan < 8) {
-		devpriv->rtsi_trig_b_output_reg &= ~NISTC_RTSI_TRIG_MASK(chan);
-		devpriv->rtsi_trig_b_output_reg |= NISTC_RTSI_TRIG(chan, src);
-		ni_stc_writew(dev, devpriv->rtsi_trig_b_output_reg,
-			      NISTC_RTSI_TRIGB_OUT_REG);
-	}
-	return 2;
-}
-
-static unsigned ni_get_rtsi_routing(struct comedi_device *dev, unsigned chan)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (chan < 4) {
-		return NISTC_RTSI_TRIG_TO_SRC(chan,
-					      devpriv->rtsi_trig_a_output_reg);
-	} else if (chan < NISTC_RTSI_TRIG_NUM_CHAN(devpriv->is_m_series)) {
-		return NISTC_RTSI_TRIG_TO_SRC(chan,
-					      devpriv->rtsi_trig_b_output_reg);
-	} else {
-		if (chan == NISTC_RTSI_TRIG_OLD_CLK_CHAN)
-			return NI_RTSI_OUTPUT_RTSI_OSC;
-		dev_err(dev->class_dev, "bug! should never get here?\n");
-		return 0;
-	}
-}
-
-static int ni_rtsi_insn_config(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct ni_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int max_chan = NISTC_RTSI_TRIG_NUM_CHAN(devpriv->is_m_series);
-
-	switch (data[0]) {
-	case INSN_CONFIG_DIO_OUTPUT:
-		if (chan < max_chan) {
-			devpriv->rtsi_trig_direction_reg |=
-			    NISTC_RTSI_TRIG_DIR(chan, devpriv->is_m_series);
-		} else if (chan == NISTC_RTSI_TRIG_OLD_CLK_CHAN) {
-			devpriv->rtsi_trig_direction_reg |=
-			    NISTC_RTSI_TRIG_DRV_CLK;
-		}
-		ni_stc_writew(dev, devpriv->rtsi_trig_direction_reg,
-			      NISTC_RTSI_TRIG_DIR_REG);
-		break;
-	case INSN_CONFIG_DIO_INPUT:
-		if (chan < max_chan) {
-			devpriv->rtsi_trig_direction_reg &=
-			    ~NISTC_RTSI_TRIG_DIR(chan, devpriv->is_m_series);
-		} else if (chan == NISTC_RTSI_TRIG_OLD_CLK_CHAN) {
-			devpriv->rtsi_trig_direction_reg &=
-			    ~NISTC_RTSI_TRIG_DRV_CLK;
-		}
-		ni_stc_writew(dev, devpriv->rtsi_trig_direction_reg,
-			      NISTC_RTSI_TRIG_DIR_REG);
-		break;
-	case INSN_CONFIG_DIO_QUERY:
-		if (chan < max_chan) {
-			data[1] =
-			    (devpriv->rtsi_trig_direction_reg &
-			     NISTC_RTSI_TRIG_DIR(chan, devpriv->is_m_series))
-				? INSN_CONFIG_DIO_OUTPUT
-				: INSN_CONFIG_DIO_INPUT;
-		} else if (chan == NISTC_RTSI_TRIG_OLD_CLK_CHAN) {
-			data[1] = (devpriv->rtsi_trig_direction_reg &
-				   NISTC_RTSI_TRIG_DRV_CLK)
-				  ? INSN_CONFIG_DIO_OUTPUT
-				  : INSN_CONFIG_DIO_INPUT;
-		}
-		return 2;
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		return ni_set_master_clock(dev, data[1], data[2]);
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		data[1] = devpriv->clock_source;
-		data[2] = devpriv->clock_ns;
-		return 3;
-	case INSN_CONFIG_SET_ROUTING:
-		return ni_set_rtsi_routing(dev, chan, data[1]);
-	case INSN_CONFIG_GET_ROUTING:
-		data[1] = ni_get_rtsi_routing(dev, chan);
-		return 2;
-	default:
-		return -EINVAL;
-	}
-	return 1;
-}
-
-static int ni_rtsi_insn_bits(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned int *data)
-{
-	data[1] = 0;
-
-	return insn->n;
-}
-
-static void ni_rtsi_init(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-
-	/*  Initialises the RTSI bus signal switch to a default state */
-
-	/*
-	 * Use 10MHz instead of 20MHz for RTSI clock frequency. Appears
-	 * to have no effect, at least on pxi-6281, which always uses
-	 * 20MHz rtsi clock frequency
-	 */
-	devpriv->clock_and_fout2 = NI_M_CLK_FOUT2_RTSI_10MHZ;
-	/*  Set clock mode to internal */
-	if (ni_set_master_clock(dev, NI_MIO_INTERNAL_CLOCK, 0) < 0)
-		dev_err(dev->class_dev, "ni_set_master_clock failed, bug?\n");
-	/*  default internal lines routing to RTSI bus lines */
-	devpriv->rtsi_trig_a_output_reg =
-	    NISTC_RTSI_TRIG(0, NI_RTSI_OUTPUT_ADR_START1) |
-	    NISTC_RTSI_TRIG(1, NI_RTSI_OUTPUT_ADR_START2) |
-	    NISTC_RTSI_TRIG(2, NI_RTSI_OUTPUT_SCLKG) |
-	    NISTC_RTSI_TRIG(3, NI_RTSI_OUTPUT_DACUPDN);
-	ni_stc_writew(dev, devpriv->rtsi_trig_a_output_reg,
-		      NISTC_RTSI_TRIGA_OUT_REG);
-	devpriv->rtsi_trig_b_output_reg =
-	    NISTC_RTSI_TRIG(4, NI_RTSI_OUTPUT_DA_START1) |
-	    NISTC_RTSI_TRIG(5, NI_RTSI_OUTPUT_G_SRC0) |
-	    NISTC_RTSI_TRIG(6, NI_RTSI_OUTPUT_G_GATE0);
-	if (devpriv->is_m_series)
-		devpriv->rtsi_trig_b_output_reg |=
-		    NISTC_RTSI_TRIG(7, NI_RTSI_OUTPUT_RTSI_OSC);
-	ni_stc_writew(dev, devpriv->rtsi_trig_b_output_reg,
-		      NISTC_RTSI_TRIGB_OUT_REG);
-
-	/*
-	 * Sets the source and direction of the 4 on board lines
-	 * ni_stc_writew(dev, 0, NISTC_RTSI_BOARD_REG);
-	 */
-}
-
-#ifdef PCIDMA
-static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-	int retval;
-
-	retval = ni_request_gpct_mite_channel(dev, counter->counter_index,
-					      COMEDI_INPUT);
-	if (retval) {
-		dev_err(dev->class_dev,
-			"no dma channel available for use by counter\n");
-		return retval;
-	}
-	ni_tio_acknowledge(counter);
-	ni_e_series_enable_second_irq(dev, counter->counter_index, 1);
-
-	return ni_tio_cmd(dev, s);
-}
-
-static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-	int retval;
-
-	retval = ni_tio_cancel(counter);
-	ni_e_series_enable_second_irq(dev, counter->counter_index, 0);
-	ni_release_gpct_mite_channel(dev, counter->counter_index);
-	return retval;
-}
-#endif
-
-static irqreturn_t ni_E_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	unsigned short a_status;
-	unsigned short b_status;
-	unsigned int ai_mite_status = 0;
-	unsigned int ao_mite_status = 0;
-	unsigned long flags;
-#ifdef PCIDMA
-	struct ni_private *devpriv = dev->private;
-	struct mite_struct *mite = devpriv->mite;
-#endif
-
-	if (!dev->attached)
-		return IRQ_NONE;
-	smp_mb();		/*  make sure dev->attached is checked before handler does anything else. */
-
-	/*  lock to avoid race with comedi_poll */
-	spin_lock_irqsave(&dev->spinlock, flags);
-	a_status = ni_stc_readw(dev, NISTC_AI_STATUS1_REG);
-	b_status = ni_stc_readw(dev, NISTC_AO_STATUS1_REG);
-#ifdef PCIDMA
-	if (mite) {
-		struct ni_private *devpriv = dev->private;
-		unsigned long flags_too;
-
-		spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too);
-		if (devpriv->ai_mite_chan) {
-			ai_mite_status = mite_get_status(devpriv->ai_mite_chan);
-			if (ai_mite_status & CHSR_LINKC)
-				writel(CHOR_CLRLC,
-				       devpriv->mite->mite_io_addr +
-				       MITE_CHOR(devpriv->
-						 ai_mite_chan->channel));
-		}
-		if (devpriv->ao_mite_chan) {
-			ao_mite_status = mite_get_status(devpriv->ao_mite_chan);
-			if (ao_mite_status & CHSR_LINKC)
-				writel(CHOR_CLRLC,
-				       mite->mite_io_addr +
-				       MITE_CHOR(devpriv->
-						 ao_mite_chan->channel));
-		}
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too);
-	}
-#endif
-	ack_a_interrupt(dev, a_status);
-	ack_b_interrupt(dev, b_status);
-	if ((a_status & NISTC_AI_STATUS1_INTA) || (ai_mite_status & CHSR_INT))
-		handle_a_interrupt(dev, a_status, ai_mite_status);
-	if ((b_status & NISTC_AO_STATUS1_INTB) || (ao_mite_status & CHSR_INT))
-		handle_b_interrupt(dev, b_status, ao_mite_status);
-	handle_gpct_interrupt(dev, 0);
-	handle_gpct_interrupt(dev, 1);
-	handle_cdio_interrupt(dev);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-	return IRQ_HANDLED;
-}
-
-static int ni_alloc_private(struct comedi_device *dev)
-{
-	struct ni_private *devpriv;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	spin_lock_init(&devpriv->window_lock);
-	spin_lock_init(&devpriv->soft_reg_copy_lock);
-	spin_lock_init(&devpriv->mite_channel_lock);
-
-	return 0;
-}
-
-static int ni_E_init(struct comedi_device *dev,
-		     unsigned interrupt_pin, unsigned irq_polarity)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	int ret;
-	int i;
-
-	if (board->n_aochan > MAX_N_AO_CHAN) {
-		dev_err(dev->class_dev, "bug! n_aochan > MAX_N_AO_CHAN\n");
-		return -EINVAL;
-	}
-
-	/* initialize clock dividers */
-	devpriv->clock_and_fout = NISTC_CLK_FOUT_SLOW_DIV2 |
-				  NISTC_CLK_FOUT_SLOW_TIMEBASE |
-				  NISTC_CLK_FOUT_TO_BOARD_DIV2 |
-				  NISTC_CLK_FOUT_TO_BOARD;
-	if (!devpriv->is_6xxx) {
-		/* BEAM is this needed for PCI-6143 ?? */
-		devpriv->clock_and_fout |= (NISTC_CLK_FOUT_AI_OUT_DIV2 |
-					    NISTC_CLK_FOUT_AO_OUT_DIV2);
-	}
-	ni_stc_writew(dev, devpriv->clock_and_fout, NISTC_CLK_FOUT_REG);
-
-	ret = comedi_alloc_subdevices(dev, NI_NUM_SUBDEVICES);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[NI_AI_SUBDEV];
-	if (board->n_adchan) {
-		s->type		= COMEDI_SUBD_AI;
-		s->subdev_flags	= SDF_READABLE | SDF_DIFF | SDF_DITHER;
-		if (!devpriv->is_611x)
-			s->subdev_flags	|= SDF_GROUND | SDF_COMMON | SDF_OTHER;
-		if (board->ai_maxdata > 0xffff)
-			s->subdev_flags	|= SDF_LSAMPL;
-		if (devpriv->is_m_series)
-			s->subdev_flags	|= SDF_SOFT_CALIBRATED;
-		s->n_chan	= board->n_adchan;
-		s->maxdata	= board->ai_maxdata;
-		s->range_table	= ni_range_lkup[board->gainlkup];
-		s->insn_read	= ni_ai_insn_read;
-		s->insn_config	= ni_ai_insn_config;
-		if (dev->irq) {
-			dev->read_subdev = s;
-			s->subdev_flags	|= SDF_CMD_READ;
-			s->len_chanlist	= 512;
-			s->do_cmdtest	= ni_ai_cmdtest;
-			s->do_cmd	= ni_ai_cmd;
-			s->cancel	= ni_ai_reset;
-			s->poll		= ni_ai_poll;
-			s->munge	= ni_ai_munge;
-
-			if (devpriv->mite)
-				s->async_dma_dir = DMA_FROM_DEVICE;
-		}
-
-		/* reset the analog input configuration */
-		ni_ai_reset(dev, s);
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[NI_AO_SUBDEV];
-	if (board->n_aochan) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_DEGLITCH | SDF_GROUND;
-		if (devpriv->is_m_series)
-			s->subdev_flags	|= SDF_SOFT_CALIBRATED;
-		s->n_chan	= board->n_aochan;
-		s->maxdata	= board->ao_maxdata;
-		s->range_table	= board->ao_range_table;
-		s->insn_config	= ni_ao_insn_config;
-		s->insn_write	= ni_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		/*
-		 * Along with the IRQ we need either a FIFO or DMA for
-		 * async command support.
-		 */
-		if (dev->irq && (board->ao_fifo_depth || devpriv->mite)) {
-			dev->write_subdev = s;
-			s->subdev_flags	|= SDF_CMD_WRITE;
-			s->len_chanlist	= s->n_chan;
-			s->do_cmdtest	= ni_ao_cmdtest;
-			s->do_cmd	= ni_ao_cmd;
-			s->cancel	= ni_ao_reset;
-			if (!devpriv->is_m_series)
-				s->munge	= ni_ao_munge;
-
-			if (devpriv->mite)
-				s->async_dma_dir = DMA_TO_DEVICE;
-		}
-
-		if (devpriv->is_67xx)
-			init_ao_67xx(dev, s);
-
-		/* reset the analog output configuration */
-		ni_ao_reset(dev, s);
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[NI_DIO_SUBDEV];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= board->has_32dio_chan ? 32 : 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	if (devpriv->is_m_series) {
-		s->subdev_flags	|= SDF_LSAMPL;
-		s->insn_bits	= ni_m_series_dio_insn_bits;
-		s->insn_config	= ni_m_series_dio_insn_config;
-		if (dev->irq) {
-			s->subdev_flags	|= SDF_CMD_WRITE /* | SDF_CMD_READ */;
-			s->len_chanlist	= s->n_chan;
-			s->do_cmdtest	= ni_cdio_cmdtest;
-			s->do_cmd	= ni_cdio_cmd;
-			s->cancel	= ni_cdio_cancel;
-
-			/* M-series boards use DMA */
-			s->async_dma_dir = DMA_BIDIRECTIONAL;
-		}
-
-		/* reset DIO and set all channels to inputs */
-		ni_writel(dev, NI_M_CDO_CMD_RESET |
-			       NI_M_CDI_CMD_RESET,
-			  NI_M_CDIO_CMD_REG);
-		ni_writel(dev, s->io_bits, NI_M_DIO_DIR_REG);
-	} else {
-		s->insn_bits	= ni_dio_insn_bits;
-		s->insn_config	= ni_dio_insn_config;
-
-		/* set all channels to inputs */
-		devpriv->dio_control = NISTC_DIO_CTRL_DIR(s->io_bits);
-		ni_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG);
-	}
-
-	/* 8255 device */
-	s = &dev->subdevices[NI_8255_DIO_SUBDEV];
-	if (board->has_8255) {
-		ret = subdev_8255_init(dev, s, ni_8255_callback,
-				       NI_E_8255_BASE);
-		if (ret)
-			return ret;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/* formerly general purpose counter/timer device, but no longer used */
-	s = &dev->subdevices[NI_UNUSED_SUBDEV];
-	s->type = COMEDI_SUBD_UNUSED;
-
-	/* Calibration subdevice */
-	s = &dev->subdevices[NI_CALIBRATION_SUBDEV];
-	s->type		= COMEDI_SUBD_CALIB;
-	s->subdev_flags	= SDF_INTERNAL;
-	s->n_chan	= 1;
-	s->maxdata	= 0;
-	if (devpriv->is_m_series) {
-		/* internal PWM output used for AI nonlinearity calibration */
-		s->insn_config	= ni_m_series_pwm_config;
-
-		ni_writel(dev, 0x0, NI_M_CAL_PWM_REG);
-	} else if (devpriv->is_6143) {
-		/* internal PWM output used for AI nonlinearity calibration */
-		s->insn_config	= ni_6143_pwm_config;
-	} else {
-		s->subdev_flags	|= SDF_WRITABLE;
-		s->insn_read	= ni_calib_insn_read;
-		s->insn_write	= ni_calib_insn_write;
-
-		/* setup the caldacs and find the real n_chan and maxdata */
-		caldac_setup(dev, s);
-	}
-
-	/* EEPROM subdevice */
-	s = &dev->subdevices[NI_EEPROM_SUBDEV];
-	s->type		= COMEDI_SUBD_MEMORY;
-	s->subdev_flags	= SDF_READABLE | SDF_INTERNAL;
-	s->maxdata	= 0xff;
-	if (devpriv->is_m_series) {
-		s->n_chan	= M_SERIES_EEPROM_SIZE;
-		s->insn_read	= ni_m_series_eeprom_insn_read;
-	} else {
-		s->n_chan	= 512;
-		s->insn_read	= ni_eeprom_insn_read;
-	}
-
-	/* Digital I/O (PFI) subdevice */
-	s = &dev->subdevices[NI_PFI_DIO_SUBDEV];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	s->maxdata	= 1;
-	if (devpriv->is_m_series) {
-		s->n_chan	= 16;
-		s->insn_bits	= ni_pfi_insn_bits;
-
-		ni_writew(dev, s->state, NI_M_PFI_DO_REG);
-		for (i = 0; i < NUM_PFI_OUTPUT_SELECT_REGS; ++i) {
-			ni_writew(dev, devpriv->pfi_output_select_reg[i],
-				  NI_M_PFI_OUT_SEL_REG(i));
-		}
-	} else {
-		s->n_chan	= 10;
-	}
-	s->insn_config	= ni_pfi_insn_config;
-
-	ni_set_bits(dev, NISTC_IO_BIDIR_PIN_REG, ~0, 0);
-
-	/* cs5529 calibration adc */
-	s = &dev->subdevices[NI_CS5529_CALIBRATION_SUBDEV];
-	if (devpriv->is_67xx) {
-		s->type = COMEDI_SUBD_AI;
-		s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_INTERNAL;
-		/*  one channel for each analog output channel */
-		s->n_chan = board->n_aochan;
-		s->maxdata = (1 << 16) - 1;
-		s->range_table = &range_unknown;	/* XXX */
-		s->insn_read = cs5529_ai_insn_read;
-		s->insn_config = NULL;
-		init_cs5529(dev);
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
-
-	/* Serial */
-	s = &dev->subdevices[NI_SERIAL_SUBDEV];
-	s->type = COMEDI_SUBD_SERIAL;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan = 1;
-	s->maxdata = 0xff;
-	s->insn_config = ni_serial_insn_config;
-	devpriv->serial_interval_ns = 0;
-	devpriv->serial_hw_mode = 0;
-
-	/* RTSI */
-	s = &dev->subdevices[NI_RTSI_SUBDEV];
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->insn_bits = ni_rtsi_insn_bits;
-	s->insn_config = ni_rtsi_insn_config;
-	ni_rtsi_init(dev);
-
-	/* allocate and initialize the gpct counter device */
-	devpriv->counter_dev = ni_gpct_device_construct(dev,
-					ni_gpct_write_register,
-					ni_gpct_read_register,
-					(devpriv->is_m_series)
-						? ni_gpct_variant_m_series
-						: ni_gpct_variant_e_series,
-					NUM_GPCT);
-	if (!devpriv->counter_dev)
-		return -ENOMEM;
-
-	/* Counter (gpct) subdevices */
-	for (i = 0; i < NUM_GPCT; ++i) {
-		struct ni_gpct *gpct = &devpriv->counter_dev->counters[i];
-
-		/* setup and initialize the counter */
-		gpct->chip_index = 0;
-		gpct->counter_index = i;
-		ni_tio_init_counter(gpct);
-
-		s = &dev->subdevices[NI_GPCT_SUBDEV(i)];
-		s->type		= COMEDI_SUBD_COUNTER;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL;
-		s->n_chan	= 3;
-		s->maxdata	= (devpriv->is_m_series) ? 0xffffffff
-							 : 0x00ffffff;
-		s->insn_read	= ni_tio_insn_read;
-		s->insn_write	= ni_tio_insn_read;
-		s->insn_config	= ni_tio_insn_config;
-#ifdef PCIDMA
-		if (dev->irq && devpriv->mite) {
-			s->subdev_flags	|= SDF_CMD_READ /* | SDF_CMD_WRITE */;
-			s->len_chanlist	= 1;
-			s->do_cmdtest	= ni_tio_cmdtest;
-			s->do_cmd	= ni_gpct_cmd;
-			s->cancel	= ni_gpct_cancel;
-
-			s->async_dma_dir = DMA_BIDIRECTIONAL;
-		}
-#endif
-		s->private	= gpct;
-	}
-
-	/* Frequency output subdevice */
-	s = &dev->subdevices[NI_FREQ_OUT_SUBDEV];
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 0xf;
-	s->insn_read	= ni_freq_out_insn_read;
-	s->insn_write	= ni_freq_out_insn_write;
-	s->insn_config	= ni_freq_out_insn_config;
-
-	if (dev->irq) {
-		ni_stc_writew(dev,
-			      (irq_polarity ? NISTC_INT_CTRL_INT_POL : 0) |
-			      (NISTC_INT_CTRL_3PIN_INT & 0) |
-			      NISTC_INT_CTRL_INTA_ENA |
-			      NISTC_INT_CTRL_INTB_ENA |
-			      NISTC_INT_CTRL_INTA_SEL(interrupt_pin) |
-			      NISTC_INT_CTRL_INTB_SEL(interrupt_pin),
-			      NISTC_INT_CTRL_REG);
-	}
-
-	/* DMA setup */
-	ni_writeb(dev, devpriv->ai_ao_select_reg, NI_E_DMA_AI_AO_SEL_REG);
-	ni_writeb(dev, devpriv->g0_g1_select_reg, NI_E_DMA_G0_G1_SEL_REG);
-
-	if (devpriv->is_6xxx) {
-		ni_writeb(dev, 0, NI611X_MAGIC_REG);
-	} else if (devpriv->is_m_series) {
-		int channel;
-
-		for (channel = 0; channel < board->n_aochan; ++channel) {
-			ni_writeb(dev, 0xf,
-				  NI_M_AO_WAVEFORM_ORDER_REG(channel));
-			ni_writeb(dev, 0x0,
-				  NI_M_AO_REF_ATTENUATION_REG(channel));
-		}
-		ni_writeb(dev, 0x0, NI_M_AO_CALIB_REG);
-	}
-
-	return 0;
-}
-
-static void mio_common_detach(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-
-	if (devpriv) {
-		if (devpriv->counter_dev)
-			ni_gpct_device_destroy(devpriv->counter_dev);
-	}
-}
diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c
deleted file mode 100644
index e3d821bf2d6a..000000000000
--- a/drivers/staging/comedi/drivers/ni_mio_cs.c
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
-    comedi/drivers/ni_mio_cs.c
-    Hardware driver for NI PCMCIA MIO E series cards
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_mio_cs
-Description: National Instruments DAQCard E series
-Author: ds
-Status: works
-Devices: [National Instruments] DAQCard-AI-16XE-50 (ni_mio_cs),
-  DAQCard-AI-16E-4, DAQCard-6062E, DAQCard-6024E, DAQCard-6036E
-Updated: Thu Oct 23 19:43:17 CDT 2003
-
-See the notes in the ni_atmio.o driver.
-*/
-/*
-	The real guts of the driver is in ni_mio_common.c, which is
-	included by all the E series drivers.
-
-	References for specifications:
-
-	   341080a.pdf  DAQCard E Series Register Level Programmer Manual
-
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include "../comedi_pcmcia.h"
-#include "ni_stc.h"
-#include "8255.h"
-
-/*
- *  AT specific setup
- */
-
-static const struct ni_board_struct ni_boards[] = {
-	{
-		.name		= "DAQCard-ai-16xe-50",
-		.device_id	= 0x010d,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 1024,
-		.gainlkup	= ai_gain_8,
-		.ai_speed	= 5000,
-		.caldac		= { dac8800, dac8043 },
-	}, {
-		.name		= "DAQCard-ai-16e-4",
-		.device_id	= 0x010c,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 1024,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 4000,
-		.caldac		= { mb88341 },		/* verified */
-	}, {
-		.name		= "DAQCard-6062E",
-		.device_id	= 0x02c4,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 8192,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 2000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1176,
-		.caldac		= { ad8804_debug },	/* verified */
-	 }, {
-		/* specs incorrect! */
-		.name		= "DAQCard-6024E",
-		.device_id	= 0x075e,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 1024,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000000,
-		.caldac		= { ad8804_debug },
-	}, {
-		/* specs incorrect! */
-		.name		= "DAQCard-6036E",
-		.device_id	= 0x0245,
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 1024,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000000,
-		.caldac		= { ad8804_debug },
-	 },
-#if 0
-	{
-		.name		= "DAQCard-6715",
-		.device_id	= 0x0000,	/* unknown */
-		.n_aochan	= 8,
-		.ao_maxdata	= 0x0fff,
-		.ao_671x	= 8192,
-		.caldac		= { mb88341, mb88341 },
-	},
-#endif
-};
-
-#include "ni_mio_common.c"
-
-static const void *ni_getboardtype(struct comedi_device *dev,
-				   struct pcmcia_device *link)
-{
-	static const struct ni_board_struct *board;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(ni_boards); i++) {
-		board = &ni_boards[i];
-		if (board->device_id == link->card_id)
-			return board;
-	}
-	return NULL;
-}
-
-static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev, void *priv_data)
-{
-	int base, ret;
-
-	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
-	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
-
-	for (base = 0x000; base < 0x400; base += 0x20) {
-		p_dev->resource[0]->start = base;
-		ret = pcmcia_request_io(p_dev);
-		if (!ret)
-			return 0;
-	}
-	return -ENODEV;
-}
-
-static int mio_cs_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	static const struct ni_board_struct *board;
-	int ret;
-
-	board = ni_getboardtype(dev, link);
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	link->config_flags |= CONF_AUTO_SET_IO | CONF_ENABLE_IRQ;
-	ret = comedi_pcmcia_enable(dev, mio_pcmcia_config_loop);
-	if (ret)
-		return ret;
-	dev->iobase = link->resource[0]->start;
-
-	link->priv = dev;
-	ret = pcmcia_request_irq(link, ni_E_interrupt);
-	if (ret)
-		return ret;
-	dev->irq = link->irq;
-
-	ret = ni_alloc_private(dev);
-	if (ret)
-		return ret;
-
-	return ni_E_init(dev, 0, 1);
-}
-
-static void mio_cs_detach(struct comedi_device *dev)
-{
-	mio_common_detach(dev);
-	comedi_pcmcia_disable(dev);
-}
-
-static struct comedi_driver driver_ni_mio_cs = {
-	.driver_name	= "ni_mio_cs",
-	.module		= THIS_MODULE,
-	.auto_attach	= mio_cs_auto_attach,
-	.detach		= mio_cs_detach,
-};
-
-static int cs_attach(struct pcmcia_device *link)
-{
-	return comedi_pcmcia_auto_config(link, &driver_ni_mio_cs);
-}
-
-static const struct pcmcia_device_id ni_mio_cs_ids[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d),	/* DAQCard-ai-16xe-50 */
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c),	/* DAQCard-ai-16e-4 */
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4),	/* DAQCard-6062E */
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e),	/* DAQCard-6024E */
-	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245),	/* DAQCard-6036E */
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
-
-static struct pcmcia_driver ni_mio_cs_driver = {
-	.name		= "ni_mio_cs",
-	.owner		= THIS_MODULE,
-	.id_table	= ni_mio_cs_ids,
-	.probe		= cs_attach,
-	.remove		= comedi_pcmcia_auto_unconfig,
-};
-module_comedi_pcmcia_driver(driver_ni_mio_cs, ni_mio_cs_driver);
-
-MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
-MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
deleted file mode 100644
index ac79099bc23e..000000000000
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ /dev/null
@@ -1,1026 +0,0 @@
-/*
-    comedi/drivers/ni_pcidio.c
-    driver for National Instruments PCI-DIO-32HS
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1999,2002 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_pcidio
-Description: National Instruments PCI-DIO32HS, PCI-6533
-Author: ds
-Status: works
-Devices: [National Instruments] PCI-DIO-32HS (ni_pcidio)
-	 [National Instruments] PXI-6533, PCI-6533 (pxi-6533)
-	 [National Instruments] PCI-6534 (pci-6534)
-Updated: Mon, 09 Jan 2012 14:27:23 +0000
-
-The DIO32HS board appears as one subdevice, with 32 channels.
-Each channel is individually I/O configurable.  The channel order
-is 0=A0, 1=A1, 2=A2, ... 8=B0, 16=C0, 24=D0.  The driver only
-supports simple digital I/O; no handshaking is supported.
-
-DMA mostly works for the PCI-DIO32HS, but only in timed input mode.
-
-The PCI-DIO-32HS/PCI-6533 has a configurable external trigger. Setting
-scan_begin_arg to 0 or CR_EDGE triggers on the leading edge. Setting
-scan_begin_arg to CR_INVERT or (CR_EDGE | CR_INVERT) triggers on the
-trailing edge.
-
-This driver could be easily modified to support AT-MIO32HS and
-AT-MIO96.
-
-The PCI-6534 requires a firmware upload after power-up to work, the
-firmware data and instructions for loading it with comedi_config
-it are contained in the
-comedi_nonfree_firmware tarball available from http://www.comedi.org
-*/
-
-#define USE_DMA
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-
-#include "../comedi_pci.h"
-
-#include "mite.h"
-
-/* defines for the PCI-DIO-32HS */
-
-#define Window_Address			4	/* W */
-#define Interrupt_And_Window_Status	4	/* R */
-#define IntStatus1				(1<<0)
-#define IntStatus2				(1<<1)
-#define WindowAddressStatus_mask		0x7c
-
-#define Master_DMA_And_Interrupt_Control 5	/* W */
-#define InterruptLine(x)			((x)&3)
-#define OpenInt				(1<<2)
-#define Group_Status			5	/* R */
-#define DataLeft				(1<<0)
-#define Req					(1<<2)
-#define StopTrig				(1<<3)
-
-#define Group_1_Flags			6	/* R */
-#define Group_2_Flags			7	/* R */
-#define TransferReady				(1<<0)
-#define CountExpired				(1<<1)
-#define Waited				(1<<5)
-#define PrimaryTC				(1<<6)
-#define SecondaryTC				(1<<7)
-  /* #define SerialRose */
-  /* #define ReqRose */
-  /* #define Paused */
-
-#define Group_1_First_Clear		6	/* W */
-#define Group_2_First_Clear		7	/* W */
-#define ClearWaited				(1<<3)
-#define ClearPrimaryTC			(1<<4)
-#define ClearSecondaryTC			(1<<5)
-#define DMAReset				(1<<6)
-#define FIFOReset				(1<<7)
-#define ClearAll				0xf8
-
-#define Group_1_FIFO			8	/* W */
-#define Group_2_FIFO			12	/* W */
-
-#define Transfer_Count			20
-#define Chip_ID_D			24
-#define Chip_ID_I			25
-#define Chip_ID_O			26
-#define Chip_Version			27
-#define Port_IO(x)			(28+(x))
-#define Port_Pin_Directions(x)		(32+(x))
-#define Port_Pin_Mask(x)		(36+(x))
-#define Port_Pin_Polarities(x)		(40+(x))
-
-#define Master_Clock_Routing		45
-#define RTSIClocking(x)			(((x)&3)<<4)
-
-#define Group_1_Second_Clear		46	/* W */
-#define Group_2_Second_Clear		47	/* W */
-#define ClearExpired				(1<<0)
-
-#define Port_Pattern(x)			(48+(x))
-
-#define Data_Path			64
-#define FIFOEnableA		(1<<0)
-#define FIFOEnableB		(1<<1)
-#define FIFOEnableC		(1<<2)
-#define FIFOEnableD		(1<<3)
-#define Funneling(x)		(((x)&3)<<4)
-#define GroupDirection	(1<<7)
-
-#define Protocol_Register_1		65
-#define OpMode				Protocol_Register_1
-#define RunMode(x)		((x)&7)
-#define Numbered		(1<<3)
-
-#define Protocol_Register_2		66
-#define ClockReg			Protocol_Register_2
-#define ClockLine(x)		(((x)&3)<<5)
-#define InvertStopTrig	(1<<7)
-#define DataLatching(x)       (((x)&3)<<5)
-
-#define Protocol_Register_3		67
-#define Sequence			Protocol_Register_3
-
-#define Protocol_Register_14		68	/* 16 bit */
-#define ClockSpeed			Protocol_Register_14
-
-#define Protocol_Register_4		70
-#define ReqReg				Protocol_Register_4
-#define ReqConditioning(x)	(((x)&7)<<3)
-
-#define Protocol_Register_5		71
-#define BlockMode			Protocol_Register_5
-
-#define FIFO_Control			72
-#define ReadyLevel(x)		((x)&7)
-
-#define Protocol_Register_6		73
-#define LinePolarities			Protocol_Register_6
-#define InvertAck		(1<<0)
-#define InvertReq		(1<<1)
-#define InvertClock		(1<<2)
-#define InvertSerial		(1<<3)
-#define OpenAck		(1<<4)
-#define OpenClock		(1<<5)
-
-#define Protocol_Register_7		74
-#define AckSer				Protocol_Register_7
-#define AckLine(x)		(((x)&3)<<2)
-#define ExchangePins		(1<<7)
-
-#define Interrupt_Control		75
-  /* bits same as flags */
-
-#define DMA_Line_Control_Group1		76
-#define DMA_Line_Control_Group2		108
-/* channel zero is none */
-static inline unsigned primary_DMAChannel_bits(unsigned channel)
-{
-	return channel & 0x3;
-}
-
-static inline unsigned secondary_DMAChannel_bits(unsigned channel)
-{
-	return (channel << 2) & 0xc;
-}
-
-#define Transfer_Size_Control		77
-#define TransferWidth(x)	((x)&3)
-#define TransferLength(x)	(((x)&3)<<3)
-#define RequireRLevel		(1<<5)
-
-#define Protocol_Register_15		79
-#define DAQOptions			Protocol_Register_15
-#define StartSource(x)			((x)&0x3)
-#define InvertStart				(1<<2)
-#define StopSource(x)				(((x)&0x3)<<3)
-#define ReqStart				(1<<6)
-#define PreStart				(1<<7)
-
-#define Pattern_Detection		81
-#define DetectionMethod			(1<<0)
-#define InvertMatch				(1<<1)
-#define IE_Pattern_Detection			(1<<2)
-
-#define Protocol_Register_9		82
-#define ReqDelay			Protocol_Register_9
-
-#define Protocol_Register_10		83
-#define ReqNotDelay			Protocol_Register_10
-
-#define Protocol_Register_11		84
-#define AckDelay			Protocol_Register_11
-
-#define Protocol_Register_12		85
-#define AckNotDelay			Protocol_Register_12
-
-#define Protocol_Register_13		86
-#define Data1Delay			Protocol_Register_13
-
-#define Protocol_Register_8		88	/* 32 bit */
-#define StartDelay			Protocol_Register_8
-
-/* Firmware files for PCI-6524 */
-#define FW_PCI_6534_MAIN		"ni6534a.bin"
-#define FW_PCI_6534_SCARAB_DI		"niscrb01.bin"
-#define FW_PCI_6534_SCARAB_DO		"niscrb02.bin"
-MODULE_FIRMWARE(FW_PCI_6534_MAIN);
-MODULE_FIRMWARE(FW_PCI_6534_SCARAB_DI);
-MODULE_FIRMWARE(FW_PCI_6534_SCARAB_DO);
-
-enum pci_6534_firmware_registers {	/* 16 bit */
-	Firmware_Control_Register = 0x100,
-	Firmware_Status_Register = 0x104,
-	Firmware_Data_Register = 0x108,
-	Firmware_Mask_Register = 0x10c,
-	Firmware_Debug_Register = 0x110,
-};
-/* main fpga registers (32 bit)*/
-enum pci_6534_fpga_registers {
-	FPGA_Control1_Register = 0x200,
-	FPGA_Control2_Register = 0x204,
-	FPGA_Irq_Mask_Register = 0x208,
-	FPGA_Status_Register = 0x20c,
-	FPGA_Signature_Register = 0x210,
-	FPGA_SCALS_Counter_Register = 0x280,	/*write-clear */
-	FPGA_SCAMS_Counter_Register = 0x284,	/*write-clear */
-	FPGA_SCBLS_Counter_Register = 0x288,	/*write-clear */
-	FPGA_SCBMS_Counter_Register = 0x28c,	/*write-clear */
-	FPGA_Temp_Control_Register = 0x2a0,
-	FPGA_DAR_Register = 0x2a8,
-	FPGA_ELC_Read_Register = 0x2b8,
-	FPGA_ELC_Write_Register = 0x2bc,
-};
-enum FPGA_Control_Bits {
-	FPGA_Enable_Bit = 0x8000,
-};
-
-#define TIMER_BASE 50		/* nanoseconds */
-
-#ifdef USE_DMA
-#define IntEn (CountExpired|Waited|PrimaryTC|SecondaryTC)
-#else
-#define IntEn (TransferReady|CountExpired|Waited|PrimaryTC|SecondaryTC)
-#endif
-
-enum nidio_boardid {
-	BOARD_PCIDIO_32HS,
-	BOARD_PXI6533,
-	BOARD_PCI6534,
-};
-
-struct nidio_board {
-	const char *name;
-	unsigned int uses_firmware:1;
-};
-
-static const struct nidio_board nidio_boards[] = {
-	[BOARD_PCIDIO_32HS] = {
-		.name		= "pci-dio-32hs",
-	},
-	[BOARD_PXI6533] = {
-		.name		= "pxi-6533",
-	},
-	[BOARD_PCI6534] = {
-		.name		= "pci-6534",
-		.uses_firmware	= 1,
-	},
-};
-
-struct nidio96_private {
-	struct mite_struct *mite;
-	int boardtype;
-	int dio;
-	unsigned short OpModeBits;
-	struct mite_channel *di_mite_chan;
-	struct mite_dma_descriptor_ring *di_mite_ring;
-	spinlock_t mite_channel_lock;
-};
-
-static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
-{
-	struct nidio96_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	BUG_ON(devpriv->di_mite_chan);
-	devpriv->di_mite_chan =
-	    mite_request_channel_in_range(devpriv->mite,
-					  devpriv->di_mite_ring, 1, 2);
-	if (!devpriv->di_mite_chan) {
-		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-		dev_err(dev->class_dev, "failed to reserve mite dma channel\n");
-		return -EBUSY;
-	}
-	devpriv->di_mite_chan->dir = COMEDI_INPUT;
-	writeb(primary_DMAChannel_bits(devpriv->di_mite_chan->channel) |
-	       secondary_DMAChannel_bits(devpriv->di_mite_chan->channel),
-	       dev->mmio + DMA_Line_Control_Group1);
-	mmiowb();
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-	return 0;
-}
-
-static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev)
-{
-	struct nidio96_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->di_mite_chan) {
-		mite_dma_disarm(devpriv->di_mite_chan);
-		mite_dma_reset(devpriv->di_mite_chan);
-		mite_release_channel(devpriv->di_mite_chan);
-		devpriv->di_mite_chan = NULL;
-		writeb(primary_DMAChannel_bits(0) |
-		       secondary_DMAChannel_bits(0),
-		       dev->mmio + DMA_Line_Control_Group1);
-		mmiowb();
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-}
-
-static int setup_mite_dma(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct nidio96_private *devpriv = dev->private;
-	int retval;
-	unsigned long flags;
-
-	retval = ni_pcidio_request_di_mite_channel(dev);
-	if (retval)
-		return retval;
-
-	/* write alloc the entire buffer */
-	comedi_buf_write_alloc(s, s->async->prealloc_bufsz);
-
-	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	if (devpriv->di_mite_chan) {
-		mite_prep_dma(devpriv->di_mite_chan, 32, 32);
-		mite_dma_arm(devpriv->di_mite_chan);
-	} else {
-		retval = -EIO;
-	}
-	spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
-
-	return retval;
-}
-
-static int ni_pcidio_poll(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct nidio96_private *devpriv = dev->private;
-	unsigned long irq_flags;
-	int count;
-
-	spin_lock_irqsave(&dev->spinlock, irq_flags);
-	spin_lock(&devpriv->mite_channel_lock);
-	if (devpriv->di_mite_chan)
-		mite_sync_input_dma(devpriv->di_mite_chan, s);
-	spin_unlock(&devpriv->mite_channel_lock);
-	count = comedi_buf_n_bytes_ready(s);
-	spin_unlock_irqrestore(&dev->spinlock, irq_flags);
-	return count;
-}
-
-static irqreturn_t nidio_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct nidio96_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct mite_struct *mite = devpriv->mite;
-	unsigned int auxdata;
-	int flags;
-	int status;
-	int work = 0;
-	unsigned int m_status = 0;
-
-	/* interrupcions parasites */
-	if (!dev->attached) {
-		/* assume it's from another card */
-		return IRQ_NONE;
-	}
-
-	/* Lock to avoid race with comedi_poll */
-	spin_lock(&dev->spinlock);
-
-	status = readb(dev->mmio + Interrupt_And_Window_Status);
-	flags = readb(dev->mmio + Group_1_Flags);
-
-	spin_lock(&devpriv->mite_channel_lock);
-	if (devpriv->di_mite_chan)
-		m_status = mite_get_status(devpriv->di_mite_chan);
-
-	if (m_status & CHSR_INT) {
-		if (m_status & CHSR_LINKC) {
-			writel(CHOR_CLRLC,
-			       mite->mite_io_addr +
-			       MITE_CHOR(devpriv->di_mite_chan->channel));
-			mite_sync_input_dma(devpriv->di_mite_chan, s);
-			/* XXX need to byteswap */
-		}
-		if (m_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_DRDY |
-				 CHSR_DRQ1 | CHSR_MRDY)) {
-			dev_dbg(dev->class_dev,
-				"unknown mite interrupt, disabling IRQ\n");
-			async->events |= COMEDI_CB_ERROR;
-			disable_irq(dev->irq);
-		}
-	}
-	spin_unlock(&devpriv->mite_channel_lock);
-
-	while (status & DataLeft) {
-		work++;
-		if (work > 20) {
-			dev_dbg(dev->class_dev, "too much work in interrupt\n");
-			writeb(0x00,
-			       dev->mmio + Master_DMA_And_Interrupt_Control);
-			break;
-		}
-
-		flags &= IntEn;
-
-		if (flags & TransferReady) {
-			while (flags & TransferReady) {
-				work++;
-				if (work > 100) {
-					dev_dbg(dev->class_dev,
-						"too much work in interrupt\n");
-					writeb(0x00, dev->mmio +
-					       Master_DMA_And_Interrupt_Control
-					      );
-					goto out;
-				}
-				auxdata = readl(dev->mmio + Group_1_FIFO);
-				comedi_buf_write_samples(s, &auxdata, 1);
-				flags = readb(dev->mmio + Group_1_Flags);
-			}
-		}
-
-		if (flags & CountExpired) {
-			writeb(ClearExpired, dev->mmio + Group_1_Second_Clear);
-			async->events |= COMEDI_CB_EOA;
-
-			writeb(0x00, dev->mmio + OpMode);
-			break;
-		} else if (flags & Waited) {
-			writeb(ClearWaited, dev->mmio + Group_1_First_Clear);
-			async->events |= COMEDI_CB_ERROR;
-			break;
-		} else if (flags & PrimaryTC) {
-			writeb(ClearPrimaryTC,
-			       dev->mmio + Group_1_First_Clear);
-			async->events |= COMEDI_CB_EOA;
-		} else if (flags & SecondaryTC) {
-			writeb(ClearSecondaryTC,
-			       dev->mmio + Group_1_First_Clear);
-			async->events |= COMEDI_CB_EOA;
-		}
-
-		flags = readb(dev->mmio + Group_1_Flags);
-		status = readb(dev->mmio + Interrupt_And_Window_Status);
-	}
-
-out:
-	comedi_handle_events(dev, s);
-#if 0
-	if (!tag)
-		writeb(0x03, dev->mmio + Master_DMA_And_Interrupt_Control);
-#endif
-
-	spin_unlock(&dev->spinlock);
-	return IRQ_HANDLED;
-}
-
-static int ni_pcidio_insn_config(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	writel(s->io_bits, dev->mmio + Port_Pin_Directions(0));
-
-	return insn->n;
-}
-
-static int ni_pcidio_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		writel(s->state, dev->mmio + Port_IO(0));
-
-	data[1] = readl(dev->mmio + Port_IO(0));
-
-	return insn->n;
-}
-
-static int ni_pcidio_ns_to_timer(int *nanosec, unsigned int flags)
-{
-	int divider, base;
-
-	base = TIMER_BASE;
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		divider = (*nanosec + base / 2) / base;
-		break;
-	case CMDF_ROUND_DOWN:
-		divider = (*nanosec) / base;
-		break;
-	case CMDF_ROUND_UP:
-		divider = (*nanosec + base - 1) / base;
-		break;
-	}
-
-	*nanosec = base * divider;
-	return divider;
-}
-
-static int ni_pcidio_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-#define MAX_SPEED	(TIMER_BASE)	/* in nanoseconds */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    MAX_SPEED);
-		/* no minimum speed */
-	} else {
-		/* TRIG_EXT */
-		/* should be level/edge, hi/lo specification here */
-		if ((cmd->scan_begin_arg & ~(CR_EDGE | CR_INVERT)) != 0) {
-			cmd->scan_begin_arg &= (CR_EDGE | CR_INVERT);
-			err |= -EINVAL;
-		}
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		ni_pcidio_ns_to_timer(&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int ni_pcidio_inttrig(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     unsigned int trig_num)
-{
-	struct nidio96_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	writeb(devpriv->OpModeBits, dev->mmio + OpMode);
-	s->async->inttrig = NULL;
-
-	return 1;
-}
-
-static int ni_pcidio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct nidio96_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	/* XXX configure ports for input */
-	writel(0x0000, dev->mmio + Port_Pin_Directions(0));
-
-	if (1) {
-		/* enable fifos A B C D */
-		writeb(0x0f, dev->mmio + Data_Path);
-
-		/* set transfer width a 32 bits */
-		writeb(TransferWidth(0) | TransferLength(0),
-		       dev->mmio + Transfer_Size_Control);
-	} else {
-		writeb(0x03, dev->mmio + Data_Path);
-		writeb(TransferWidth(3) | TransferLength(0),
-		       dev->mmio + Transfer_Size_Control);
-	}
-
-	/* protocol configuration */
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/* page 4-5, "input with internal REQs" */
-		writeb(0, dev->mmio + OpMode);
-		writeb(0x00, dev->mmio + ClockReg);
-		writeb(1, dev->mmio + Sequence);
-		writeb(0x04, dev->mmio + ReqReg);
-		writeb(4, dev->mmio + BlockMode);
-		writeb(3, dev->mmio + LinePolarities);
-		writeb(0xc0, dev->mmio + AckSer);
-		writel(ni_pcidio_ns_to_timer(&cmd->scan_begin_arg,
-					     CMDF_ROUND_NEAREST),
-		       dev->mmio + StartDelay);
-		writeb(1, dev->mmio + ReqDelay);
-		writeb(1, dev->mmio + ReqNotDelay);
-		writeb(1, dev->mmio + AckDelay);
-		writeb(0x0b, dev->mmio + AckNotDelay);
-		writeb(0x01, dev->mmio + Data1Delay);
-		/* manual, page 4-5: ClockSpeed comment is incorrectly listed
-		 * on DAQOptions */
-		writew(0, dev->mmio + ClockSpeed);
-		writeb(0, dev->mmio + DAQOptions);
-	} else {
-		/* TRIG_EXT */
-		/* page 4-5, "input with external REQs" */
-		writeb(0, dev->mmio + OpMode);
-		writeb(0x00, dev->mmio + ClockReg);
-		writeb(0, dev->mmio + Sequence);
-		writeb(0x00, dev->mmio + ReqReg);
-		writeb(4, dev->mmio + BlockMode);
-		if (!(cmd->scan_begin_arg & CR_INVERT))	/* Leading Edge */
-			writeb(0, dev->mmio + LinePolarities);
-		else					/* Trailing Edge */
-			writeb(2, dev->mmio + LinePolarities);
-		writeb(0x00, dev->mmio + AckSer);
-		writel(1, dev->mmio + StartDelay);
-		writeb(1, dev->mmio + ReqDelay);
-		writeb(1, dev->mmio + ReqNotDelay);
-		writeb(1, dev->mmio + AckDelay);
-		writeb(0x0C, dev->mmio + AckNotDelay);
-		writeb(0x10, dev->mmio + Data1Delay);
-		writew(0, dev->mmio + ClockSpeed);
-		writeb(0x60, dev->mmio + DAQOptions);
-	}
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		writel(cmd->stop_arg,
-		       dev->mmio + Transfer_Count);
-	} else {
-		/* XXX */
-	}
-
-#ifdef USE_DMA
-	writeb(ClearPrimaryTC | ClearSecondaryTC,
-	       dev->mmio + Group_1_First_Clear);
-
-	{
-		int retval = setup_mite_dma(dev, s);
-
-		if (retval)
-			return retval;
-	}
-#else
-	writeb(0x00, dev->mmio + DMA_Line_Control_Group1);
-#endif
-	writeb(0x00, dev->mmio + DMA_Line_Control_Group2);
-
-	/* clear and enable interrupts */
-	writeb(0xff, dev->mmio + Group_1_First_Clear);
-	/* writeb(ClearExpired, dev->mmio+Group_1_Second_Clear); */
-
-	writeb(IntEn, dev->mmio + Interrupt_Control);
-	writeb(0x03, dev->mmio + Master_DMA_And_Interrupt_Control);
-
-	if (cmd->stop_src == TRIG_NONE) {
-		devpriv->OpModeBits = DataLatching(0) | RunMode(7);
-	} else {		/* TRIG_TIMER */
-		devpriv->OpModeBits = Numbered | RunMode(7);
-	}
-	if (cmd->start_src == TRIG_NOW) {
-		/* start */
-		writeb(devpriv->OpModeBits, dev->mmio + OpMode);
-		s->async->inttrig = NULL;
-	} else {
-		/* TRIG_INT */
-		s->async->inttrig = ni_pcidio_inttrig;
-	}
-
-	return 0;
-}
-
-static int ni_pcidio_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	writeb(0x00, dev->mmio + Master_DMA_And_Interrupt_Control);
-	ni_pcidio_release_di_mite_channel(dev);
-
-	return 0;
-}
-
-static int ni_pcidio_change(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct nidio96_private *devpriv = dev->private;
-	int ret;
-
-	ret = mite_buf_change(devpriv->di_mite_ring, s);
-	if (ret < 0)
-		return ret;
-
-	memset(s->async->prealloc_buf, 0xaa, s->async->prealloc_bufsz);
-
-	return 0;
-}
-
-static int pci_6534_load_fpga(struct comedi_device *dev,
-			      const u8 *data, size_t data_len,
-			      unsigned long context)
-{
-	static const int timeout = 1000;
-	int fpga_index = context;
-	int i;
-	size_t j;
-
-	writew(0x80 | fpga_index, dev->mmio + Firmware_Control_Register);
-	writew(0xc0 | fpga_index, dev->mmio + Firmware_Control_Register);
-	for (i = 0;
-	     (readw(dev->mmio + Firmware_Status_Register) & 0x2) == 0 &&
-	     i < timeout; ++i) {
-		udelay(1);
-	}
-	if (i == timeout) {
-		dev_warn(dev->class_dev,
-			 "ni_pcidio: failed to load fpga %i, waiting for status 0x2\n",
-			 fpga_index);
-		return -EIO;
-	}
-	writew(0x80 | fpga_index, dev->mmio + Firmware_Control_Register);
-	for (i = 0;
-	     readw(dev->mmio + Firmware_Status_Register) != 0x3 &&
-	     i < timeout; ++i) {
-		udelay(1);
-	}
-	if (i == timeout) {
-		dev_warn(dev->class_dev,
-			 "ni_pcidio: failed to load fpga %i, waiting for status 0x3\n",
-			 fpga_index);
-		return -EIO;
-	}
-	for (j = 0; j + 1 < data_len;) {
-		unsigned int value = data[j++];
-
-		value |= data[j++] << 8;
-		writew(value, dev->mmio + Firmware_Data_Register);
-		for (i = 0;
-		     (readw(dev->mmio + Firmware_Status_Register) & 0x2) == 0
-		     && i < timeout; ++i) {
-			udelay(1);
-		}
-		if (i == timeout) {
-			dev_warn(dev->class_dev,
-				 "ni_pcidio: failed to load word into fpga %i\n",
-				 fpga_index);
-			return -EIO;
-		}
-		if (need_resched())
-			schedule();
-	}
-	writew(0x0, dev->mmio + Firmware_Control_Register);
-	return 0;
-}
-
-static int pci_6534_reset_fpga(struct comedi_device *dev, int fpga_index)
-{
-	return pci_6534_load_fpga(dev, NULL, 0, fpga_index);
-}
-
-static int pci_6534_reset_fpgas(struct comedi_device *dev)
-{
-	int ret;
-	int i;
-
-	writew(0x0, dev->mmio + Firmware_Control_Register);
-	for (i = 0; i < 3; ++i) {
-		ret = pci_6534_reset_fpga(dev, i);
-		if (ret < 0)
-			break;
-	}
-	writew(0x0, dev->mmio + Firmware_Mask_Register);
-	return ret;
-}
-
-static void pci_6534_init_main_fpga(struct comedi_device *dev)
-{
-	writel(0, dev->mmio + FPGA_Control1_Register);
-	writel(0, dev->mmio + FPGA_Control2_Register);
-	writel(0, dev->mmio + FPGA_SCALS_Counter_Register);
-	writel(0, dev->mmio + FPGA_SCAMS_Counter_Register);
-	writel(0, dev->mmio + FPGA_SCBLS_Counter_Register);
-	writel(0, dev->mmio + FPGA_SCBMS_Counter_Register);
-}
-
-static int pci_6534_upload_firmware(struct comedi_device *dev)
-{
-	struct nidio96_private *devpriv = dev->private;
-	static const char *const fw_file[3] = {
-		FW_PCI_6534_SCARAB_DI,	/* loaded into scarab A for DI */
-		FW_PCI_6534_SCARAB_DO,	/* loaded into scarab B for DO */
-		FW_PCI_6534_MAIN,	/* loaded into main FPGA */
-	};
-	int ret;
-	int n;
-
-	ret = pci_6534_reset_fpgas(dev);
-	if (ret < 0)
-		return ret;
-	/* load main FPGA first, then the two scarabs */
-	for (n = 2; n >= 0; n--) {
-		ret = comedi_load_firmware(dev, &devpriv->mite->pcidev->dev,
-					   fw_file[n],
-					   pci_6534_load_fpga, n);
-		if (ret == 0 && n == 2)
-			pci_6534_init_main_fpga(dev);
-		if (ret < 0)
-			break;
-	}
-	return ret;
-}
-
-static void nidio_reset_board(struct comedi_device *dev)
-{
-	writel(0, dev->mmio + Port_IO(0));
-	writel(0, dev->mmio + Port_Pin_Directions(0));
-	writel(0, dev->mmio + Port_Pin_Mask(0));
-
-	/* disable interrupts on board */
-	writeb(0, dev->mmio + Master_DMA_And_Interrupt_Control);
-}
-
-static int nidio_auto_attach(struct comedi_device *dev,
-			     unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct nidio_board *board = NULL;
-	struct nidio96_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-	unsigned int irq;
-
-	if (context < ARRAY_SIZE(nidio_boards))
-		board = &nidio_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	spin_lock_init(&devpriv->mite_channel_lock);
-
-	devpriv->mite = mite_alloc(pcidev);
-	if (!devpriv->mite)
-		return -ENOMEM;
-
-	ret = mite_setup(dev, devpriv->mite);
-	if (ret < 0)
-		return ret;
-
-	devpriv->di_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (!devpriv->di_mite_ring)
-		return -ENOMEM;
-
-	if (board->uses_firmware) {
-		ret = pci_6534_upload_firmware(dev);
-		if (ret < 0)
-			return ret;
-	}
-
-	nidio_reset_board(dev);
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	dev_info(dev->class_dev, "%s rev=%d\n", dev->board_name,
-		 readb(dev->mmio + Chip_Version));
-
-	s = &dev->subdevices[0];
-
-	dev->read_subdev = s;
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags =
-		SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_PACKED |
-		SDF_CMD_READ;
-	s->n_chan = 32;
-	s->range_table = &range_digital;
-	s->maxdata = 1;
-	s->insn_config = &ni_pcidio_insn_config;
-	s->insn_bits = &ni_pcidio_insn_bits;
-	s->do_cmd = &ni_pcidio_cmd;
-	s->do_cmdtest = &ni_pcidio_cmdtest;
-	s->cancel = &ni_pcidio_cancel;
-	s->len_chanlist = 32;	/* XXX */
-	s->buf_change = &ni_pcidio_change;
-	s->async_dma_dir = DMA_BIDIRECTIONAL;
-	s->poll = &ni_pcidio_poll;
-
-	irq = pcidev->irq;
-	if (irq) {
-		ret = request_irq(irq, nidio_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = irq;
-	}
-
-	return 0;
-}
-
-static void nidio_detach(struct comedi_device *dev)
-{
-	struct nidio96_private *devpriv = dev->private;
-
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-	if (devpriv) {
-		if (devpriv->di_mite_ring) {
-			mite_free_ring(devpriv->di_mite_ring);
-			devpriv->di_mite_ring = NULL;
-		}
-		mite_detach(devpriv->mite);
-	}
-	if (dev->mmio)
-		iounmap(dev->mmio);
-	comedi_pci_disable(dev);
-}
-
-static struct comedi_driver ni_pcidio_driver = {
-	.driver_name	= "ni_pcidio",
-	.module		= THIS_MODULE,
-	.auto_attach	= nidio_auto_attach,
-	.detach		= nidio_detach,
-};
-
-static int ni_pcidio_pci_probe(struct pci_dev *dev,
-			       const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &ni_pcidio_driver, id->driver_data);
-}
-
-static const struct pci_device_id ni_pcidio_pci_table[] = {
-	{ PCI_VDEVICE(NI, 0x1150), BOARD_PCIDIO_32HS },
-	{ PCI_VDEVICE(NI, 0x12b0), BOARD_PCI6534 },
-	{ PCI_VDEVICE(NI, 0x1320), BOARD_PXI6533 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ni_pcidio_pci_table);
-
-static struct pci_driver ni_pcidio_pci_driver = {
-	.name		= "ni_pcidio",
-	.id_table	= ni_pcidio_pci_table,
-	.probe		= ni_pcidio_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(ni_pcidio_driver, ni_pcidio_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c
deleted file mode 100644
index 30a5a75d1fe7..000000000000
--- a/drivers/staging/comedi/drivers/ni_pcimio.c
+++ /dev/null
@@ -1,1307 +0,0 @@
-/*
-    comedi/drivers/ni_pcimio.c
-    Hardware driver for NI PCI-MIO E series cards
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_pcimio
-Description: National Instruments PCI-MIO-E series and M series (all boards)
-Author: ds, John Hallen, Frank Mori Hess, Rolf Mueller, Herbert Peremans,
-  Herman Bruyninckx, Terry Barnaby
-Status: works
-Devices: [National Instruments] PCI-MIO-16XE-50 (ni_pcimio),
-  PCI-MIO-16XE-10, PXI-6030E, PCI-MIO-16E-1, PCI-MIO-16E-4, PCI-6014, PCI-6040E,
-  PXI-6040E, PCI-6030E, PCI-6031E, PCI-6032E, PCI-6033E, PCI-6071E, PCI-6023E,
-  PCI-6024E, PCI-6025E, PXI-6025E, PCI-6034E, PCI-6035E, PCI-6052E,
-  PCI-6110, PCI-6111, PCI-6220, PCI-6221, PCI-6224, PXI-6224,
-  PCI-6225, PXI-6225, PCI-6229, PCI-6250, PCI-6251, PCIe-6251, PXIe-6251,
-  PCI-6254, PCI-6259, PCIe-6259,
-  PCI-6280, PCI-6281, PXI-6281, PCI-6284, PCI-6289,
-  PCI-6711, PXI-6711, PCI-6713, PXI-6713,
-  PXI-6071E, PCI-6070E, PXI-6070E,
-  PXI-6052E, PCI-6036E, PCI-6731, PCI-6733, PXI-6733,
-  PCI-6143, PXI-6143
-Updated: Mon, 09 Jan 2012 14:52:48 +0000
-
-These boards are almost identical to the AT-MIO E series, except that
-they use the PCI bus instead of ISA (i.e., AT).  See the notes for
-the ni_atmio.o driver for additional information about these boards.
-
-Autocalibration is supported on many of the devices, using the
-comedi_calibrate (or comedi_soft_calibrate for m-series) utility.
-M-Series boards do analog input and analog output calibration entirely
-in software. The software calibration corrects
-the analog input for offset, gain and
-nonlinearity.  The analog outputs are corrected for offset and gain.
-See the comedilib documentation on comedi_get_softcal_converter() for
-more information.
-
-By default, the driver uses DMA to transfer analog input data to
-memory.  When DMA is enabled, not all triggering features are
-supported.
-
-Digital I/O may not work on 673x.
-
-Note that the PCI-6143 is a simultaineous sampling device with 8 convertors.
-With this board all of the convertors perform one simultaineous sample during
-a scan interval. The period for a scan is used for the convert time in a
-Comedi cmd. The convert trigger source is normally set to TRIG_NOW by default.
-
-The RTSI trigger bus is supported on these cards on
-subdevice 10. See the comedilib documentation for details.
-
-Information (number of channels, bits, etc.) for some devices may be
-incorrect.  Please check this and submit a bug if there are problems
-for your device.
-
-SCXI is probably broken for m-series boards.
-
-Bugs:
- - When DMA is enabled, COMEDI_EV_CONVERT does
-   not work correctly.
-
-*/
-/*
-	The PCI-MIO E series driver was originally written by
-	Tomasz Motylewski <...>, and ported to comedi by ds.
-
-	References:
-
-	   341079b.pdf  PCI E Series Register-Level Programmer Manual
-	   340934b.pdf  DAQ-STC reference manual
-
-	   322080b.pdf  6711/6713/6715 User Manual
-
-	   320945c.pdf  PCI E Series User Manual
-	   322138a.pdf  PCI-6052E and DAQPad-6052E User Manual
-
-	ISSUES:
-
-	need to deal with external reference for DAC, and other DAC
-	properties in board properties
-
-	deal with at-mio-16de-10 revision D to N changes, etc.
-
-	need to add other CALDAC type
-
-	need to slow down DAC loading.  I don't trust NI's claim that
-	two writes to the PCI bus slows IO enough.  I would prefer to
-	use udelay().  Timing specs: (clock)
-		AD8522		30ns
-		DAC8043		120ns
-		DAC8800		60ns
-		MB88341		?
-
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include "../comedi_pci.h"
-
-#include <asm/byteorder.h>
-
-#include "ni_stc.h"
-#include "mite.h"
-
-#define PCIDMA
-
-/* These are not all the possible ao ranges for 628x boards.
- They can do OFFSET +- REFERENCE where OFFSET can be
- 0V, 5V, APFI<0,1>, or AO<0...3> and RANGE can
- be 10V, 5V, 2V, 1V, APFI<0,1>, AO<0...3>.  That's
- 63 different possibilities.  An AO channel
- can not act as it's own OFFSET or REFERENCE.
-*/
-static const struct comedi_lrange range_ni_M_628x_ao = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2),
-		BIP_RANGE(1),
-		RANGE(-5, 15),
-		UNI_RANGE(10),
-		RANGE(3, 7),
-		RANGE(4, 6),
-		RANGE_ext(-1, 1)
-	}
-};
-
-static const struct comedi_lrange range_ni_M_625x_ao = {
-	3, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		RANGE_ext(-1, 1)
-	}
-};
-
-enum ni_pcimio_boardid {
-	BOARD_PCIMIO_16XE_50,
-	BOARD_PCIMIO_16XE_10,
-	BOARD_PCI6014,
-	BOARD_PXI6030E,
-	BOARD_PCIMIO_16E_1,
-	BOARD_PCIMIO_16E_4,
-	BOARD_PXI6040E,
-	BOARD_PCI6031E,
-	BOARD_PCI6032E,
-	BOARD_PCI6033E,
-	BOARD_PCI6071E,
-	BOARD_PCI6023E,
-	BOARD_PCI6024E,
-	BOARD_PCI6025E,
-	BOARD_PXI6025E,
-	BOARD_PCI6034E,
-	BOARD_PCI6035E,
-	BOARD_PCI6052E,
-	BOARD_PCI6110,
-	BOARD_PCI6111,
-	/* BOARD_PCI6115, */
-	/* BOARD_PXI6115, */
-	BOARD_PCI6711,
-	BOARD_PXI6711,
-	BOARD_PCI6713,
-	BOARD_PXI6713,
-	BOARD_PCI6731,
-	/* BOARD_PXI6731, */
-	BOARD_PCI6733,
-	BOARD_PXI6733,
-	BOARD_PXI6071E,
-	BOARD_PXI6070E,
-	BOARD_PXI6052E,
-	BOARD_PXI6031E,
-	BOARD_PCI6036E,
-	BOARD_PCI6220,
-	BOARD_PCI6221,
-	BOARD_PCI6221_37PIN,
-	BOARD_PCI6224,
-	BOARD_PXI6224,
-	BOARD_PCI6225,
-	BOARD_PXI6225,
-	BOARD_PCI6229,
-	BOARD_PCI6250,
-	BOARD_PCI6251,
-	BOARD_PCIE6251,
-	BOARD_PXIE6251,
-	BOARD_PCI6254,
-	BOARD_PCI6259,
-	BOARD_PCIE6259,
-	BOARD_PCI6280,
-	BOARD_PCI6281,
-	BOARD_PXI6281,
-	BOARD_PCI6284,
-	BOARD_PCI6289,
-	BOARD_PCI6143,
-	BOARD_PXI6143,
-};
-
-static const struct ni_board_struct ni_boards[] = {
-	[BOARD_PCIMIO_16XE_50] = {
-		.name		= "pci-mio-16xe-50",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 2048,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_8,
-		.ai_speed	= 50000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 50000,
-		.caldac		= { dac8800, dac8043 },
-	},
-	[BOARD_PCIMIO_16XE_10] = {
-		.name		= "pci-mio-16xe-10",	/*  aka pci-6030E */
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 10000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	},
-	[BOARD_PCI6014] = {
-		.name		= "pci-6014",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 100000,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PXI6030E] = {
-		.name		= "pxi-6030e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 10000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	},
-	[BOARD_PCIMIO_16E_1] = {
-		.name		= "pci-mio-16e-1",	/* aka pci-6070e */
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { mb88341 },
-	},
-	[BOARD_PCIMIO_16E_4] = {
-		.name		= "pci-mio-16e-4",	/* aka pci-6040e */
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_16,
-		/*
-		 * there have been reported problems with
-		 * full speed on this board
-		 */
-		.ai_speed	= 2000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 512,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { ad8804_debug },	/* doc says mb88341 */
-	},
-	[BOARD_PXI6040E] = {
-		.name		= "pxi-6040e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 2000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 512,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { mb88341 },
-	},
-	[BOARD_PCI6031E] = {
-		.name		= "pci-6031e",
-		.n_adchan	= 64,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 10000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	},
-	[BOARD_PCI6032E] = {
-		.name		= "pci-6032e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	},
-	[BOARD_PCI6033E] = {
-		.name		= "pci-6033e",
-		.n_adchan	= 64,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	},
-	[BOARD_PCI6071E] = {
-		.name		= "pci-6071e",
-		.n_adchan	= 64,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PCI6023E] = {
-		.name		= "pci-6023e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.caldac		= { ad8804_debug },	/* manual is wrong */
-	},
-	[BOARD_PCI6024E] = {
-		.name		= "pci-6024e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 100000,
-		.caldac		= { ad8804_debug },	/* manual is wrong */
-	},
-	[BOARD_PCI6025E] = {
-		.name		= "pci-6025e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 100000,
-		.caldac		= { ad8804_debug },	/* manual is wrong */
-		.has_8255	= 1,
-	},
-	[BOARD_PXI6025E] = {
-		.name		= "pxi-6025e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 100000,
-		.caldac		= { ad8804_debug },	/* manual is wrong */
-		.has_8255	= 1,
-	},
-	[BOARD_PCI6034E] = {
-		.name		= "pci-6034e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PCI6035E] = {
-		.name		= "pci-6035e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 100000,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PCI6052E] = {
-		.name		= "pci-6052e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 3000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 3000,
-		/* manual is wrong */
-		.caldac		= { ad8804_debug, ad8804_debug, ad8522 },
-	},
-	[BOARD_PCI6110] = {
-		.name		= "pci-6110",
-		.n_adchan	= 4,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 8192,
-		.alwaysdither	= 0,
-		.gainlkup	= ai_gain_611x,
-		.ai_speed	= 200,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.reg_type	= ni_reg_611x,
-		.ao_range_table	= &range_bipolar10,
-		.ao_fifo_depth	= 2048,
-		.ao_speed	= 250,
-		.caldac		= { ad8804, ad8804 },
-	},
-	[BOARD_PCI6111] = {
-		.name		= "pci-6111",
-		.n_adchan	= 2,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 8192,
-		.gainlkup	= ai_gain_611x,
-		.ai_speed	= 200,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.reg_type	= ni_reg_611x,
-		.ao_range_table	= &range_bipolar10,
-		.ao_fifo_depth	= 2048,
-		.ao_speed	= 250,
-		.caldac		= { ad8804, ad8804 },
-	},
-#if 0
-	/* The 6115 boards probably need their own driver */
-	[BOARD_PCI6115] = {	/* .device_id = 0x2ed0, */
-		.name		= "pci-6115",
-		.n_adchan	= 4,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 8192,
-		.gainlkup	= ai_gain_611x,
-		.ai_speed	= 100,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_671x	= 1,
-		.ao_fifo_depth	= 2048,
-		.ao_speed	= 250,
-		.reg_611x	= 1,
-		/* XXX */
-		.caldac		= { ad8804_debug, ad8804_debug, ad8804_debug },
-	},
-#endif
-#if 0
-	[BOARD_PXI6115] = {	/* .device_id = ????, */
-		.name		= "pxi-6115",
-		.n_adchan	= 4,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 8192,
-		.gainlkup	= ai_gain_611x,
-		.ai_speed	= 100,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_671x	= 1,
-		.ao_fifo_depth	= 2048,
-		.ao_speed	= 250,
-		.reg_611x	= 1,
-		/* XXX */
-		.caldac		= { ad8804_debug, ad8804_debug, ad8804_debug },
-	},
-#endif
-	[BOARD_PCI6711] = {
-		.name = "pci-6711",
-		.n_aochan	= 4,
-		.ao_maxdata	= 0x0fff,
-		/* data sheet says 8192, but fifo really holds 16384 samples */
-		.ao_fifo_depth	= 16384,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000,
-		.reg_type	= ni_reg_6711,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PXI6711] = {
-		.name		= "pxi-6711",
-		.n_aochan	= 4,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 16384,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000,
-		.reg_type	= ni_reg_6711,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PCI6713] = {
-		.name		= "pci-6713",
-		.n_aochan	= 8,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 16384,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000,
-		.reg_type	= ni_reg_6713,
-		.caldac		= { ad8804_debug, ad8804_debug },
-	},
-	[BOARD_PXI6713] = {
-		.name		= "pxi-6713",
-		.n_aochan	= 8,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 16384,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000,
-		.reg_type	= ni_reg_6713,
-		.caldac		= { ad8804_debug, ad8804_debug },
-	},
-	[BOARD_PCI6731] = {
-		.name		= "pci-6731",
-		.n_aochan	= 4,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8192,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000,
-		.reg_type	= ni_reg_6711,
-		.caldac		= { ad8804_debug },
-	},
-#if 0
-	[BOARD_PXI6731] = {	/* .device_id = ????, */
-		.name		= "pxi-6731",
-		.n_aochan	= 4,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8192,
-		.ao_range_table	= &range_bipolar10,
-		.reg_type	= ni_reg_6711,
-		.caldac		= { ad8804_debug },
-	},
-#endif
-	[BOARD_PCI6733] = {
-		.name		= "pci-6733",
-		.n_aochan	= 8,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 16384,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000,
-		.reg_type	= ni_reg_6713,
-		.caldac		= { ad8804_debug, ad8804_debug },
-	},
-	[BOARD_PXI6733] = {
-		.name		= "pxi-6733",
-		.n_aochan	= 8,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 16384,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 1000,
-		.reg_type	= ni_reg_6713,
-		.caldac		= { ad8804_debug, ad8804_debug },
-	},
-	[BOARD_PXI6071E] = {
-		.name		= "pxi-6071e",
-		.n_adchan	= 64,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PXI6070E] = {
-		.name		= "pxi-6070e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x0fff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0x0fff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 1000,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PXI6052E] = {
-		.name		= "pxi-6052e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_16,
-		.ai_speed	= 3000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 3000,
-		.caldac		= { mb88341, mb88341, ad8522 },
-	},
-	[BOARD_PXI6031E] = {
-		.name		= "pxi-6031e",
-		.n_adchan	= 64,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_14,
-		.ai_speed	= 10000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 2048,
-		.ao_range_table	= &range_ni_E_ao_ext,
-		.ao_speed	= 10000,
-		.caldac		= { dac8800, dac8043, ad8522 },
-	},
-	[BOARD_PCI6036E] = {
-		.name = "pci-6036e",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,
-		.alwaysdither	= 1,
-		.gainlkup	= ai_gain_4,
-		.ai_speed	= 5000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_range_table	= &range_bipolar10,
-		.ao_speed	= 100000,
-		.caldac		= { ad8804_debug },
-	},
-	[BOARD_PCI6220] = {
-		.name		= "pci-6220",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 512,		/* FIXME: guess */
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.reg_type	= ni_reg_622x,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6221] = {
-		.name		= "pci-6221",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_bipolar10,
-		.reg_type	= ni_reg_622x,
-		.ao_speed	= 1200,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6221_37PIN] = {
-		.name		= "pci-6221_37pin",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_bipolar10,
-		.reg_type	= ni_reg_622x,
-		.ao_speed	= 1200,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6224] = {
-		.name		= "pci-6224",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.reg_type	= ni_reg_622x,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PXI6224] = {
-		.name		= "pxi-6224",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.reg_type	= ni_reg_622x,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6225] = {
-		.name		= "pci-6225",
-		.n_adchan	= 80,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_bipolar10,
-		.reg_type	= ni_reg_622x,
-		.ao_speed	= 1200,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PXI6225] = {
-		.name		= "pxi-6225",
-		.n_adchan	= 80,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_bipolar10,
-		.reg_type	= ni_reg_622x,
-		.ao_speed	= 1200,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6229] = {
-		.name		= "pci-6229",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_622x,
-		.ai_speed	= 4000,
-		.n_aochan	= 4,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_bipolar10,
-		.reg_type	= ni_reg_622x,
-		.ao_speed	= 1200,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6250] = {
-		.name		= "pci-6250",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 800,
-		.reg_type	= ni_reg_625x,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6251] = {
-		.name		= "pci-6251",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_ni_M_625x_ao,
-		.reg_type	= ni_reg_625x,
-		.ao_speed	= 350,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCIE6251] = {
-		.name		= "pcie-6251",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_ni_M_625x_ao,
-		.reg_type	= ni_reg_625x,
-		.ao_speed	= 350,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PXIE6251] = {
-		.name		= "pxie-6251",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 800,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_ni_M_625x_ao,
-		.reg_type	= ni_reg_625x,
-		.ao_speed	= 350,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6254] = {
-		.name		= "pci-6254",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 800,
-		.reg_type	= ni_reg_625x,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6259] = {
-		.name		= "pci-6259",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 800,
-		.n_aochan	= 4,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_ni_M_625x_ao,
-		.reg_type	= ni_reg_625x,
-		.ao_speed	= 350,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCIE6259] = {
-		.name		= "pcie-6259",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 4095,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 800,
-		.n_aochan	= 4,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_ni_M_625x_ao,
-		.reg_type	= ni_reg_625x,
-		.ao_speed	= 350,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6280] = {
-		.name		= "pci-6280",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x3ffff,
-		.ai_fifo_depth	= 2047,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 1600,
-		.ao_fifo_depth	= 8191,
-		.reg_type	= ni_reg_628x,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6281] = {
-		.name		= "pci-6281",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x3ffff,
-		.ai_fifo_depth	= 2047,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 1600,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table = &range_ni_M_628x_ao,
-		.reg_type	= ni_reg_628x,
-		.ao_speed	= 350,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PXI6281] = {
-		.name		= "pxi-6281",
-		.n_adchan	= 16,
-		.ai_maxdata	= 0x3ffff,
-		.ai_fifo_depth	= 2047,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 1600,
-		.n_aochan	= 2,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_ni_M_628x_ao,
-		.reg_type	= ni_reg_628x,
-		.ao_speed	= 350,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6284] = {
-		.name		= "pci-6284",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0x3ffff,
-		.ai_fifo_depth	= 2047,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 1600,
-		.reg_type	= ni_reg_628x,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6289] = {
-		.name		= "pci-6289",
-		.n_adchan	= 32,
-		.ai_maxdata	= 0x3ffff,
-		.ai_fifo_depth	= 2047,
-		.gainlkup	= ai_gain_628x,
-		.ai_speed	= 1600,
-		.n_aochan	= 4,
-		.ao_maxdata	= 0xffff,
-		.ao_fifo_depth	= 8191,
-		.ao_range_table	= &range_ni_M_628x_ao,
-		.reg_type	= ni_reg_628x,
-		.ao_speed	= 350,
-		.has_32dio_chan	= 1,
-		.caldac		= { caldac_none },
-	},
-	[BOARD_PCI6143] = {
-		.name		= "pci-6143",
-		.n_adchan	= 8,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 1024,
-		.gainlkup	= ai_gain_6143,
-		.ai_speed	= 4000,
-		.reg_type	= ni_reg_6143,
-		.caldac		= { ad8804_debug, ad8804_debug },
-	},
-	[BOARD_PXI6143] = {
-		.name		= "pxi-6143",
-		.n_adchan	= 8,
-		.ai_maxdata	= 0xffff,
-		.ai_fifo_depth	= 1024,
-		.gainlkup	= ai_gain_6143,
-		.ai_speed	= 4000,
-		.reg_type	= ni_reg_6143,
-		.caldac		= { ad8804_debug, ad8804_debug },
-	},
-};
-
-#include "ni_mio_common.c"
-
-static int pcimio_ai_change(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-	int ret;
-
-	ret = mite_buf_change(devpriv->ai_mite_ring, s);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int pcimio_ao_change(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-	int ret;
-
-	ret = mite_buf_change(devpriv->ao_mite_ring, s);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int pcimio_gpct0_change(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-	int ret;
-
-	ret = mite_buf_change(devpriv->gpct_mite_ring[0], s);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int pcimio_gpct1_change(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-	int ret;
-
-	ret = mite_buf_change(devpriv->gpct_mite_ring[1], s);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int pcimio_dio_change(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct ni_private *devpriv = dev->private;
-	int ret;
-
-	ret = mite_buf_change(devpriv->cdo_mite_ring, s);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static void m_series_init_eeprom_buffer(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-	static const int Start_Cal_EEPROM = 0x400;
-	static const unsigned window_size = 10;
-	static const int serial_number_eeprom_offset = 0x4;
-	static const int serial_number_eeprom_length = 0x4;
-	unsigned old_iodwbsr_bits;
-	unsigned old_iodwbsr1_bits;
-	unsigned old_iodwcr1_bits;
-	int i;
-
-	old_iodwbsr_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWBSR);
-	old_iodwbsr1_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWBSR_1);
-	old_iodwcr1_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWCR_1);
-	writel(0x0, devpriv->mite->mite_io_addr + MITE_IODWBSR);
-	writel(((0x80 | window_size) | devpriv->mite->daq_phys_addr),
-	       devpriv->mite->mite_io_addr + MITE_IODWBSR_1);
-	writel(0x1 | old_iodwcr1_bits,
-	       devpriv->mite->mite_io_addr + MITE_IODWCR_1);
-	writel(0xf, devpriv->mite->mite_io_addr + 0x30);
-
-	BUG_ON(serial_number_eeprom_length > sizeof(devpriv->serial_number));
-	for (i = 0; i < serial_number_eeprom_length; ++i) {
-		char *byte_ptr = (char *)&devpriv->serial_number + i;
-		*byte_ptr = ni_readb(dev, serial_number_eeprom_offset + i);
-	}
-	devpriv->serial_number = be32_to_cpu(devpriv->serial_number);
-
-	for (i = 0; i < M_SERIES_EEPROM_SIZE; ++i)
-		devpriv->eeprom_buffer[i] = ni_readb(dev, Start_Cal_EEPROM + i);
-
-	writel(old_iodwbsr1_bits, devpriv->mite->mite_io_addr + MITE_IODWBSR_1);
-	writel(old_iodwbsr_bits, devpriv->mite->mite_io_addr + MITE_IODWBSR);
-	writel(old_iodwcr1_bits, devpriv->mite->mite_io_addr + MITE_IODWCR_1);
-	writel(0x0, devpriv->mite->mite_io_addr + 0x30);
-}
-
-static void init_6143(struct comedi_device *dev)
-{
-	const struct ni_board_struct *board = dev->board_ptr;
-	struct ni_private *devpriv = dev->private;
-
-	/*  Disable interrupts */
-	ni_stc_writew(dev, 0, NISTC_INT_CTRL_REG);
-
-	/*  Initialise 6143 AI specific bits */
-
-	/* Set G0,G1 DMA mode to E series version */
-	ni_writeb(dev, 0x00, NI6143_MAGIC_REG);
-	/* Set EOCMode, ADCMode and pipelinedelay */
-	ni_writeb(dev, 0x80, NI6143_PIPELINE_DELAY_REG);
-	/* Set EOC Delay */
-	ni_writeb(dev, 0x00, NI6143_EOC_SET_REG);
-
-	/* Set the FIFO half full level */
-	ni_writel(dev, board->ai_fifo_depth / 2, NI6143_AI_FIFO_FLAG_REG);
-
-	/*  Strobe Relay disable bit */
-	devpriv->ai_calib_source_enabled = 0;
-	ni_writew(dev, devpriv->ai_calib_source | NI6143_CALIB_CHAN_RELAY_OFF,
-		  NI6143_CALIB_CHAN_REG);
-	ni_writew(dev, devpriv->ai_calib_source, NI6143_CALIB_CHAN_REG);
-}
-
-static void pcimio_detach(struct comedi_device *dev)
-{
-	struct ni_private *devpriv = dev->private;
-
-	mio_common_detach(dev);
-	if (dev->irq)
-		free_irq(dev->irq, dev);
-	if (devpriv) {
-		mite_free_ring(devpriv->ai_mite_ring);
-		mite_free_ring(devpriv->ao_mite_ring);
-		mite_free_ring(devpriv->cdo_mite_ring);
-		mite_free_ring(devpriv->gpct_mite_ring[0]);
-		mite_free_ring(devpriv->gpct_mite_ring[1]);
-		mite_detach(devpriv->mite);
-	}
-	if (dev->mmio)
-		iounmap(dev->mmio);
-	comedi_pci_disable(dev);
-}
-
-static int pcimio_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct ni_board_struct *board = NULL;
-	struct ni_private *devpriv;
-	unsigned int irq;
-	int ret;
-
-	if (context < ARRAY_SIZE(ni_boards))
-		board = &ni_boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	ret = ni_alloc_private(dev);
-	if (ret)
-		return ret;
-	devpriv = dev->private;
-
-	devpriv->mite = mite_alloc(pcidev);
-	if (!devpriv->mite)
-		return -ENOMEM;
-
-	if (board->reg_type & ni_reg_m_series_mask)
-		devpriv->is_m_series = 1;
-	if (board->reg_type & ni_reg_6xxx_mask)
-		devpriv->is_6xxx = 1;
-	if (board->reg_type == ni_reg_611x)
-		devpriv->is_611x = 1;
-	if (board->reg_type == ni_reg_6143)
-		devpriv->is_6143 = 1;
-	if (board->reg_type == ni_reg_622x)
-		devpriv->is_622x = 1;
-	if (board->reg_type == ni_reg_625x)
-		devpriv->is_625x = 1;
-	if (board->reg_type == ni_reg_628x)
-		devpriv->is_628x = 1;
-	if (board->reg_type & ni_reg_67xx_mask)
-		devpriv->is_67xx = 1;
-	if (board->reg_type == ni_reg_6711)
-		devpriv->is_6711 = 1;
-	if (board->reg_type == ni_reg_6713)
-		devpriv->is_6713 = 1;
-
-	ret = mite_setup(dev, devpriv->mite);
-	if (ret < 0)
-		return ret;
-
-	devpriv->ai_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (!devpriv->ai_mite_ring)
-		return -ENOMEM;
-	devpriv->ao_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (!devpriv->ao_mite_ring)
-		return -ENOMEM;
-	devpriv->cdo_mite_ring = mite_alloc_ring(devpriv->mite);
-	if (!devpriv->cdo_mite_ring)
-		return -ENOMEM;
-	devpriv->gpct_mite_ring[0] = mite_alloc_ring(devpriv->mite);
-	if (!devpriv->gpct_mite_ring[0])
-		return -ENOMEM;
-	devpriv->gpct_mite_ring[1] = mite_alloc_ring(devpriv->mite);
-	if (!devpriv->gpct_mite_ring[1])
-		return -ENOMEM;
-
-	if (devpriv->is_m_series)
-		m_series_init_eeprom_buffer(dev);
-	if (devpriv->is_6143)
-		init_6143(dev);
-
-	irq = pcidev->irq;
-	if (irq) {
-		ret = request_irq(irq, ni_E_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = irq;
-	}
-
-	ret = ni_E_init(dev, 0, 1);
-	if (ret < 0)
-		return ret;
-
-	dev->subdevices[NI_AI_SUBDEV].buf_change = &pcimio_ai_change;
-	dev->subdevices[NI_AO_SUBDEV].buf_change = &pcimio_ao_change;
-	dev->subdevices[NI_GPCT_SUBDEV(0)].buf_change = &pcimio_gpct0_change;
-	dev->subdevices[NI_GPCT_SUBDEV(1)].buf_change = &pcimio_gpct1_change;
-	dev->subdevices[NI_DIO_SUBDEV].buf_change = &pcimio_dio_change;
-
-	return 0;
-}
-
-static struct comedi_driver ni_pcimio_driver = {
-	.driver_name	= "ni_pcimio",
-	.module		= THIS_MODULE,
-	.auto_attach	= pcimio_auto_attach,
-	.detach		= pcimio_detach,
-};
-
-static int ni_pcimio_pci_probe(struct pci_dev *dev,
-			       const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &ni_pcimio_driver, id->driver_data);
-}
-
-static const struct pci_device_id ni_pcimio_pci_table[] = {
-	{ PCI_VDEVICE(NI, 0x0162), BOARD_PCIMIO_16XE_50 },	/* 0x1620? */
-	{ PCI_VDEVICE(NI, 0x1170), BOARD_PCIMIO_16XE_10 },
-	{ PCI_VDEVICE(NI, 0x1180), BOARD_PCIMIO_16E_1 },
-	{ PCI_VDEVICE(NI, 0x1190), BOARD_PCIMIO_16E_4 },
-	{ PCI_VDEVICE(NI, 0x11b0), BOARD_PXI6070E },
-	{ PCI_VDEVICE(NI, 0x11c0), BOARD_PXI6040E },
-	{ PCI_VDEVICE(NI, 0x11d0), BOARD_PXI6030E },
-	{ PCI_VDEVICE(NI, 0x1270), BOARD_PCI6032E },
-	{ PCI_VDEVICE(NI, 0x1330), BOARD_PCI6031E },
-	{ PCI_VDEVICE(NI, 0x1340), BOARD_PCI6033E },
-	{ PCI_VDEVICE(NI, 0x1350), BOARD_PCI6071E },
-	{ PCI_VDEVICE(NI, 0x14e0), BOARD_PCI6110 },
-	{ PCI_VDEVICE(NI, 0x14f0), BOARD_PCI6111 },
-	{ PCI_VDEVICE(NI, 0x1580), BOARD_PXI6031E },
-	{ PCI_VDEVICE(NI, 0x15b0), BOARD_PXI6071E },
-	{ PCI_VDEVICE(NI, 0x1880), BOARD_PCI6711 },
-	{ PCI_VDEVICE(NI, 0x1870), BOARD_PCI6713 },
-	{ PCI_VDEVICE(NI, 0x18b0), BOARD_PCI6052E },
-	{ PCI_VDEVICE(NI, 0x18c0), BOARD_PXI6052E },
-	{ PCI_VDEVICE(NI, 0x2410), BOARD_PCI6733 },
-	{ PCI_VDEVICE(NI, 0x2420), BOARD_PXI6733 },
-	{ PCI_VDEVICE(NI, 0x2430), BOARD_PCI6731 },
-	{ PCI_VDEVICE(NI, 0x2890), BOARD_PCI6036E },
-	{ PCI_VDEVICE(NI, 0x28c0), BOARD_PCI6014 },
-	{ PCI_VDEVICE(NI, 0x2a60), BOARD_PCI6023E },
-	{ PCI_VDEVICE(NI, 0x2a70), BOARD_PCI6024E },
-	{ PCI_VDEVICE(NI, 0x2a80), BOARD_PCI6025E },
-	{ PCI_VDEVICE(NI, 0x2ab0), BOARD_PXI6025E },
-	{ PCI_VDEVICE(NI, 0x2b80), BOARD_PXI6713 },
-	{ PCI_VDEVICE(NI, 0x2b90), BOARD_PXI6711 },
-	{ PCI_VDEVICE(NI, 0x2c80), BOARD_PCI6035E },
-	{ PCI_VDEVICE(NI, 0x2ca0), BOARD_PCI6034E },
-	{ PCI_VDEVICE(NI, 0x70aa), BOARD_PCI6229 },
-	{ PCI_VDEVICE(NI, 0x70ab), BOARD_PCI6259 },
-	{ PCI_VDEVICE(NI, 0x70ac), BOARD_PCI6289 },
-	{ PCI_VDEVICE(NI, 0x70af), BOARD_PCI6221 },
-	{ PCI_VDEVICE(NI, 0x70b0), BOARD_PCI6220 },
-	{ PCI_VDEVICE(NI, 0x70b4), BOARD_PCI6250 },
-	{ PCI_VDEVICE(NI, 0x70b6), BOARD_PCI6280 },
-	{ PCI_VDEVICE(NI, 0x70b7), BOARD_PCI6254 },
-	{ PCI_VDEVICE(NI, 0x70b8), BOARD_PCI6251 },
-	{ PCI_VDEVICE(NI, 0x70bc), BOARD_PCI6284 },
-	{ PCI_VDEVICE(NI, 0x70bd), BOARD_PCI6281 },
-	{ PCI_VDEVICE(NI, 0x70bf), BOARD_PXI6281 },
-	{ PCI_VDEVICE(NI, 0x70c0), BOARD_PCI6143 },
-	{ PCI_VDEVICE(NI, 0x70f2), BOARD_PCI6224 },
-	{ PCI_VDEVICE(NI, 0x70f3), BOARD_PXI6224 },
-	{ PCI_VDEVICE(NI, 0x710d), BOARD_PXI6143 },
-	{ PCI_VDEVICE(NI, 0x716c), BOARD_PCI6225 },
-	{ PCI_VDEVICE(NI, 0x716d), BOARD_PXI6225 },
-	{ PCI_VDEVICE(NI, 0x717f), BOARD_PCIE6259 },
-	{ PCI_VDEVICE(NI, 0x71bc), BOARD_PCI6221_37PIN },
-	{ PCI_VDEVICE(NI, 0x717d), BOARD_PCIE6251 },
-	{ PCI_VDEVICE(NI, 0x72e8), BOARD_PXIE6251 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, ni_pcimio_pci_table);
-
-static struct pci_driver ni_pcimio_pci_driver = {
-	.name		= "ni_pcimio",
-	.id_table	= ni_pcimio_pci_table,
-	.probe		= ni_pcimio_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(ni_pcimio_driver, ni_pcimio_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h
deleted file mode 100644
index 1d5af25b92a8..000000000000
--- a/drivers/staging/comedi/drivers/ni_stc.h
+++ /dev/null
@@ -1,1062 +0,0 @@
-/*
-    module/ni_stc.h
-    Register descriptions for NI DAQ-STC chip
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998-9 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-/*
-	References:
-	    DAQ-STC Technical Reference Manual
-*/
-
-#ifndef _COMEDI_NI_STC_H
-#define _COMEDI_NI_STC_H
-
-#include "ni_tio.h"
-
-/*
- * Registers in the National Instruments DAQ-STC chip
- */
-
-#define NISTC_INTA_ACK_REG		2
-#define NISTC_INTA_ACK_G0_GATE		BIT(15)
-#define NISTC_INTA_ACK_G0_TC		BIT(14)
-#define NISTC_INTA_ACK_AI_ERR		BIT(13)
-#define NISTC_INTA_ACK_AI_STOP		BIT(12)
-#define NISTC_INTA_ACK_AI_START		BIT(11)
-#define NISTC_INTA_ACK_AI_START2	BIT(10)
-#define NISTC_INTA_ACK_AI_START1	BIT(9)
-#define NISTC_INTA_ACK_AI_SC_TC		BIT(8)
-#define NISTC_INTA_ACK_AI_SC_TC_ERR	BIT(7)
-#define NISTC_INTA_ACK_G0_TC_ERR	BIT(6)
-#define NISTC_INTA_ACK_G0_GATE_ERR	BIT(5)
-#define NISTC_INTA_ACK_AI_ALL		(NISTC_INTA_ACK_AI_ERR |	\
-					 NISTC_INTA_ACK_AI_STOP |	\
-					 NISTC_INTA_ACK_AI_START |	\
-					 NISTC_INTA_ACK_AI_START2 |	\
-					 NISTC_INTA_ACK_AI_START1 |	\
-					 NISTC_INTA_ACK_AI_SC_TC |	\
-					 NISTC_INTA_ACK_AI_SC_TC_ERR)
-
-#define NISTC_INTB_ACK_REG		3
-#define NISTC_INTB_ACK_G1_GATE		BIT(15)
-#define NISTC_INTB_ACK_G1_TC		BIT(14)
-#define NISTC_INTB_ACK_AO_ERR		BIT(13)
-#define NISTC_INTB_ACK_AO_STOP		BIT(12)
-#define NISTC_INTB_ACK_AO_START		BIT(11)
-#define NISTC_INTB_ACK_AO_UPDATE	BIT(10)
-#define NISTC_INTB_ACK_AO_START1	BIT(9)
-#define NISTC_INTB_ACK_AO_BC_TC		BIT(8)
-#define NISTC_INTB_ACK_AO_UC_TC		BIT(7)
-#define NISTC_INTB_ACK_AO_UI2_TC	BIT(6)
-#define NISTC_INTB_ACK_AO_UI2_TC_ERR	BIT(5)
-#define NISTC_INTB_ACK_AO_BC_TC_ERR	BIT(4)
-#define NISTC_INTB_ACK_AO_BC_TC_TRIG_ERR BIT(3)
-#define NISTC_INTB_ACK_G1_TC_ERR	BIT(2)
-#define NISTC_INTB_ACK_G1_GATE_ERR	BIT(1)
-#define NISTC_INTB_ACK_AO_ALL		(NISTC_INTB_ACK_AO_ERR |	\
-					 NISTC_INTB_ACK_AO_STOP |	\
-					 NISTC_INTB_ACK_AO_START |	\
-					 NISTC_INTB_ACK_AO_UPDATE |	\
-					 NISTC_INTB_ACK_AO_START1 |	\
-					 NISTC_INTB_ACK_AO_BC_TC |	\
-					 NISTC_INTB_ACK_AO_UC_TC |	\
-					 NISTC_INTB_ACK_AO_BC_TC_ERR |	\
-					 NISTC_INTB_ACK_AO_BC_TC_TRIG_ERR)
-
-#define NISTC_AI_CMD2_REG		4
-#define NISTC_AI_CMD2_END_ON_SC_TC	BIT(15)
-#define NISTC_AI_CMD2_END_ON_EOS	BIT(14)
-#define NISTC_AI_CMD2_START1_DISABLE	BIT(11)
-#define NISTC_AI_CMD2_SC_SAVE_TRACE	BIT(10)
-#define NISTC_AI_CMD2_SI_SW_ON_SC_TC	BIT(9)
-#define NISTC_AI_CMD2_SI_SW_ON_STOP	BIT(8)
-#define NISTC_AI_CMD2_SI_SW_ON_TC	BIT(7)
-#define NISTC_AI_CMD2_SC_SW_ON_TC	BIT(4)
-#define NISTC_AI_CMD2_STOP_PULSE	BIT(3)
-#define NISTC_AI_CMD2_START_PULSE	BIT(2)
-#define NISTC_AI_CMD2_START2_PULSE	BIT(1)
-#define NISTC_AI_CMD2_START1_PULSE	BIT(0)
-
-#define NISTC_AO_CMD2_REG		5
-#define NISTC_AO_CMD2_END_ON_BC_TC(x)	(((x) & 0x3) << 14)
-#define NISTC_AO_CMD2_START_STOP_GATE_ENA BIT(13)
-#define NISTC_AO_CMD2_UC_SAVE_TRACE	BIT(12)
-#define NISTC_AO_CMD2_BC_GATE_ENA	BIT(11)
-#define NISTC_AO_CMD2_BC_SAVE_TRACE	BIT(10)
-#define NISTC_AO_CMD2_UI_SW_ON_BC_TC	BIT(9)
-#define NISTC_AO_CMD2_UI_SW_ON_STOP	BIT(8)
-#define NISTC_AO_CMD2_UI_SW_ON_TC	BIT(7)
-#define NISTC_AO_CMD2_UC_SW_ON_BC_TC	BIT(6)
-#define NISTC_AO_CMD2_UC_SW_ON_TC	BIT(5)
-#define NISTC_AO_CMD2_BC_SW_ON_TC	BIT(4)
-#define NISTC_AO_CMD2_MUTE_B		BIT(3)
-#define NISTC_AO_CMD2_MUTE_A		BIT(2)
-#define NISTC_AO_CMD2_UPDATE2_PULSE	BIT(1)
-#define NISTC_AO_CMD2_START1_PULSE	BIT(0)
-
-#define NISTC_G0_CMD_REG		6
-#define NISTC_G1_CMD_REG		7
-
-#define NISTC_AI_CMD1_REG		8
-#define NISTC_AI_CMD1_ATRIG_RESET	BIT(14)
-#define NISTC_AI_CMD1_DISARM		BIT(13)
-#define NISTC_AI_CMD1_SI2_ARM		BIT(12)
-#define NISTC_AI_CMD1_SI2_LOAD		BIT(11)
-#define NISTC_AI_CMD1_SI_ARM		BIT(10)
-#define NISTC_AI_CMD1_SI_LOAD		BIT(9)
-#define NISTC_AI_CMD1_DIV_ARM		BIT(8)
-#define NISTC_AI_CMD1_DIV_LOAD		BIT(7)
-#define NISTC_AI_CMD1_SC_ARM		BIT(6)
-#define NISTC_AI_CMD1_SC_LOAD		BIT(5)
-#define NISTC_AI_CMD1_SCAN_IN_PROG_PULSE BIT(4)
-#define NISTC_AI_CMD1_EXTMUX_CLK_PULSE	BIT(3)
-#define NISTC_AI_CMD1_LOCALMUX_CLK_PULSE BIT(2)
-#define NISTC_AI_CMD1_SC_TC_PULSE	BIT(1)
-#define NISTC_AI_CMD1_CONVERT_PULSE	BIT(0)
-
-#define NISTC_AO_CMD1_REG		9
-#define NISTC_AO_CMD1_ATRIG_RESET	BIT(15)
-#define NISTC_AO_CMD1_START_PULSE	BIT(14)
-#define NISTC_AO_CMD1_DISARM		BIT(13)
-#define NISTC_AO_CMD1_UI2_ARM_DISARM	BIT(12)
-#define NISTC_AO_CMD1_UI2_LOAD		BIT(11)
-#define NISTC_AO_CMD1_UI_ARM		BIT(10)
-#define NISTC_AO_CMD1_UI_LOAD		BIT(9)
-#define NISTC_AO_CMD1_UC_ARM		BIT(8)
-#define NISTC_AO_CMD1_UC_LOAD		BIT(7)
-#define NISTC_AO_CMD1_BC_ARM		BIT(6)
-#define NISTC_AO_CMD1_BC_LOAD		BIT(5)
-#define NISTC_AO_CMD1_DAC1_UPDATE_MODE	BIT(4)
-#define NISTC_AO_CMD1_LDAC1_SRC_SEL	BIT(3)
-#define NISTC_AO_CMD1_DAC0_UPDATE_MODE	BIT(2)
-#define NISTC_AO_CMD1_LDAC0_SRC_SEL	BIT(1)
-#define NISTC_AO_CMD1_UPDATE_PULSE	BIT(0)
-
-#define NISTC_DIO_OUT_REG		10
-#define NISTC_DIO_OUT_SERIAL(x)	(((x) & 0xff) << 8)
-#define NISTC_DIO_OUT_SERIAL_MASK	NISTC_DIO_OUT_SERIAL(0xff)
-#define NISTC_DIO_OUT_PARALLEL(x)	((x) & 0xff)
-#define NISTC_DIO_OUT_PARALLEL_MASK	NISTC_DIO_OUT_PARALLEL(0xff)
-#define NISTC_DIO_SDIN			BIT(4)
-#define NISTC_DIO_SDOUT			BIT(0)
-
-#define NISTC_DIO_CTRL_REG		11
-#define NISTC_DIO_SDCLK			BIT(11)
-#define NISTC_DIO_CTRL_HW_SER_TIMEBASE	BIT(10)
-#define NISTC_DIO_CTRL_HW_SER_ENA	BIT(9)
-#define NISTC_DIO_CTRL_HW_SER_START	BIT(8)
-#define NISTC_DIO_CTRL_DIR(x)		((x) & 0xff)
-#define NISTC_DIO_CTRL_DIR_MASK		NISTC_DIO_CTRL_DIR(0xff)
-
-#define NISTC_AI_MODE1_REG		12
-#define NISTC_AI_MODE1_CONVERT_SRC(x)	(((x) & 0x1f) << 11)
-#define NISTC_AI_MODE1_SI_SRC(x)	(((x) & 0x1f) << 6)
-#define NISTC_AI_MODE1_CONVERT_POLARITY	BIT(5)
-#define NISTC_AI_MODE1_SI_POLARITY	BIT(4)
-#define NISTC_AI_MODE1_START_STOP	BIT(3)
-#define NISTC_AI_MODE1_RSVD		BIT(2)
-#define NISTC_AI_MODE1_CONTINUOUS	BIT(1)
-#define NISTC_AI_MODE1_TRIGGER_ONCE	BIT(0)
-
-#define NISTC_AI_MODE2_REG		13
-#define NISTC_AI_MODE2_SC_GATE_ENA	BIT(15)
-#define NISTC_AI_MODE2_START_STOP_GATE_ENA BIT(14)
-#define NISTC_AI_MODE2_PRE_TRIGGER	BIT(13)
-#define NISTC_AI_MODE2_EXTMUX_PRESENT	BIT(12)
-#define NISTC_AI_MODE2_SI2_INIT_LOAD_SRC BIT(9)
-#define NISTC_AI_MODE2_SI2_RELOAD_MODE	BIT(8)
-#define NISTC_AI_MODE2_SI_INIT_LOAD_SRC	BIT(7)
-#define NISTC_AI_MODE2_SI_RELOAD_MODE(x) (((x) & 0x7) << 4)
-#define NISTC_AI_MODE2_SI_WR_SWITCH	BIT(3)
-#define NISTC_AI_MODE2_SC_INIT_LOAD_SRC	BIT(2)
-#define NISTC_AI_MODE2_SC_RELOAD_MODE	BIT(1)
-#define NISTC_AI_MODE2_SC_WR_SWITCH	BIT(0)
-
-#define NISTC_AI_SI_LOADA_REG		14
-#define NISTC_AI_SI_LOADB_REG		16
-#define NISTC_AI_SC_LOADA_REG		18
-#define NISTC_AI_SC_LOADB_REG		20
-#define NISTC_AI_SI2_LOADA_REG		23
-#define NISTC_AI_SI2_LOADB_REG		25
-
-#define NISTC_G0_MODE_REG		26
-#define NISTC_G1_MODE_REG		27
-#define NISTC_G0_LOADA_REG		28
-#define NISTC_G0_LOADB_REG		30
-#define NISTC_G1_LOADA_REG		32
-#define NISTC_G1_LOADB_REG		34
-#define NISTC_G0_INPUT_SEL_REG		36
-#define NISTC_G1_INPUT_SEL_REG		37
-
-#define NISTC_AO_MODE1_REG		38
-#define NISTC_AO_MODE1_UPDATE_SRC(x)	(((x) & 0x1f) << 11)
-#define NISTC_AO_MODE1_UPDATE_SRC_MASK	NISTC_AO_MODE1_UPDATE_SRC(0x1f)
-#define NISTC_AO_MODE1_UI_SRC(x)	(((x) & 0x1f) << 6)
-#define NISTC_AO_MODE1_UI_SRC_MASK	NISTC_AO_MODE1_UI_SRC(0x1f)
-#define NISTC_AO_MODE1_MULTI_CHAN	BIT(5)
-#define NISTC_AO_MODE1_UPDATE_SRC_POLARITY BIT(4)
-#define NISTC_AO_MODE1_UI_SRC_POLARITY	BIT(3)
-#define NISTC_AO_MODE1_UC_SW_EVERY_TC	BIT(2)
-#define NISTC_AO_MODE1_CONTINUOUS	BIT(1)
-#define NISTC_AO_MODE1_TRIGGER_ONCE	BIT(0)
-
-#define NISTC_AO_MODE2_REG		39
-#define NISTC_AO_MODE2_FIFO_MODE(x)	(((x) & 0x3) << 14)
-#define NISTC_AO_MODE2_FIFO_MODE_MASK	NISTC_AO_MODE2_FIFO_MODE(3)
-#define NISTC_AO_MODE2_FIFO_MODE_E	NISTC_AO_MODE2_FIFO_MODE(0)
-#define NISTC_AO_MODE2_FIFO_MODE_HF	NISTC_AO_MODE2_FIFO_MODE(1)
-#define NISTC_AO_MODE2_FIFO_MODE_F	NISTC_AO_MODE2_FIFO_MODE(2)
-#define NISTC_AO_MODE2_FIFO_MODE_HF_F	NISTC_AO_MODE2_FIFO_MODE(3)
-#define NISTC_AO_MODE2_FIFO_REXMIT_ENA	BIT(13)
-#define NISTC_AO_MODE2_START1_DISABLE	BIT(12)
-#define NISTC_AO_MODE2_UC_INIT_LOAD_SRC	BIT(11)
-#define NISTC_AO_MODE2_UC_WR_SWITCH	BIT(10)
-#define NISTC_AO_MODE2_UI2_INIT_LOAD_SRC BIT(9)
-#define NISTC_AO_MODE2_UI2_RELOAD_MODE	BIT(8)
-#define NISTC_AO_MODE2_UI_INIT_LOAD_SRC	BIT(7)
-#define NISTC_AO_MODE2_UI_RELOAD_MODE(x) (((x) & 0x7) << 4)
-#define NISTC_AO_MODE2_UI_WR_SWITCH	BIT(3)
-#define NISTC_AO_MODE2_BC_INIT_LOAD_SRC	BIT(2)
-#define NISTC_AO_MODE2_BC_RELOAD_MODE	BIT(1)
-#define NISTC_AO_MODE2_BC_WR_SWITCH	BIT(0)
-
-#define NISTC_AO_UI_LOADA_REG		40
-#define NISTC_AO_UI_LOADB_REG		42
-#define NISTC_AO_BC_LOADA_REG		44
-#define NISTC_AO_BC_LOADB_REG		46
-#define NISTC_AO_UC_LOADA_REG		48
-#define NISTC_AO_UC_LOADB_REG		50
-
-#define NISTC_CLK_FOUT_REG		56
-#define NISTC_CLK_FOUT_ENA		BIT(15)
-#define NISTC_CLK_FOUT_TIMEBASE_SEL	BIT(14)
-#define NISTC_CLK_FOUT_DIO_SER_OUT_DIV2	BIT(13)
-#define NISTC_CLK_FOUT_SLOW_DIV2	BIT(12)
-#define NISTC_CLK_FOUT_SLOW_TIMEBASE	BIT(11)
-#define NISTC_CLK_FOUT_G_SRC_DIV2	BIT(10)
-#define NISTC_CLK_FOUT_TO_BOARD_DIV2	BIT(9)
-#define NISTC_CLK_FOUT_TO_BOARD		BIT(8)
-#define NISTC_CLK_FOUT_AI_OUT_DIV2	BIT(7)
-#define NISTC_CLK_FOUT_AI_SRC_DIV2	BIT(6)
-#define NISTC_CLK_FOUT_AO_OUT_DIV2	BIT(5)
-#define NISTC_CLK_FOUT_AO_SRC_DIV2	BIT(4)
-#define NISTC_CLK_FOUT_DIVIDER(x)	(((x) & 0xf) << 0)
-#define NISTC_CLK_FOUT_TO_DIVIDER(x)	(((x) >> 0) & 0xf)
-#define NISTC_CLK_FOUT_DIVIDER_MASK	NISTC_CLK_FOUT_DIVIDER(0xf)
-
-#define NISTC_IO_BIDIR_PIN_REG		57
-
-#define NISTC_RTSI_TRIG_DIR_REG		58
-#define NISTC_RTSI_TRIG_OLD_CLK_CHAN	7
-#define NISTC_RTSI_TRIG_NUM_CHAN(_m)	((_m) ? 8 : 7)
-#define NISTC_RTSI_TRIG_DIR(_c, _m)	((_m) ? BIT(8 + (_c)) : BIT(7 + (_c)))
-#define NISTC_RTSI_TRIG_USE_CLK		BIT(1)
-#define NISTC_RTSI_TRIG_DRV_CLK		BIT(0)
-
-#define NISTC_INT_CTRL_REG		59
-#define NISTC_INT_CTRL_INTB_ENA		BIT(15)
-#define NISTC_INT_CTRL_INTB_SEL(x)	(((x) & 0x7) << 12)
-#define NISTC_INT_CTRL_INTA_ENA		BIT(11)
-#define NISTC_INT_CTRL_INTA_SEL(x)	(((x) & 0x7) << 8)
-#define NISTC_INT_CTRL_PASSTHRU0_POL	BIT(3)
-#define NISTC_INT_CTRL_PASSTHRU1_POL	BIT(2)
-#define NISTC_INT_CTRL_3PIN_INT		BIT(1)
-#define NISTC_INT_CTRL_INT_POL		BIT(0)
-
-#define NISTC_AI_OUT_CTRL_REG		60
-#define NISTC_AI_OUT_CTRL_START_SEL	BIT(10)
-#define NISTC_AI_OUT_CTRL_SCAN_IN_PROG_SEL(x)	(((x) & 0x3) << 8)
-#define NISTC_AI_OUT_CTRL_EXTMUX_CLK_SEL(x)	(((x) & 0x3) << 6)
-#define NISTC_AI_OUT_CTRL_LOCALMUX_CLK_SEL(x)	(((x) & 0x3) << 4)
-#define NISTC_AI_OUT_CTRL_SC_TC_SEL(x)		(((x) & 0x3) << 2)
-#define NISTC_AI_OUT_CTRL_CONVERT_SEL(x)	(((x) & 0x3) << 0)
-#define NISTC_AI_OUT_CTRL_CONVERT_HIGH_Z	NISTC_AI_OUT_CTRL_CONVERT_SEL(0)
-#define NISTC_AI_OUT_CTRL_CONVERT_GND		NISTC_AI_OUT_CTRL_CONVERT_SEL(1)
-#define NISTC_AI_OUT_CTRL_CONVERT_LOW		NISTC_AI_OUT_CTRL_CONVERT_SEL(2)
-#define NISTC_AI_OUT_CTRL_CONVERT_HIGH		NISTC_AI_OUT_CTRL_CONVERT_SEL(3)
-
-#define NISTC_ATRIG_ETC_REG		61
-#define NISTC_ATRIG_ETC_GPFO_1_ENA	BIT(15)
-#define NISTC_ATRIG_ETC_GPFO_0_ENA	BIT(14)
-#define NISTC_ATRIG_ETC_GPFO_0_SEL(x)	(((x) & 0x3) << 11)
-#define NISTC_ATRIG_ETC_GPFO_1_SEL	BIT(7)
-#define NISTC_ATRIG_ETC_DRV		BIT(4)
-#define NISTC_ATRIG_ETC_ENA		BIT(3)
-#define NISTC_ATRIG_ETC_MODE(x)		(((x) & 0x7) << 0)
-
-#define NISTC_AI_START_STOP_REG		62
-#define NISTC_AI_START_POLARITY		BIT(15)
-#define NISTC_AI_STOP_POLARITY		BIT(14)
-#define NISTC_AI_STOP_SYNC		BIT(13)
-#define NISTC_AI_STOP_EDGE		BIT(12)
-#define NISTC_AI_STOP_SEL(x)		(((x) & 0x1f) << 7)
-#define NISTC_AI_START_SYNC		BIT(6)
-#define NISTC_AI_START_EDGE		BIT(5)
-#define NISTC_AI_START_SEL(x)		(((x) & 0x1f) << 0)
-
-#define NISTC_AI_TRIG_SEL_REG		63
-#define NISTC_AI_TRIG_START1_POLARITY	BIT(15)
-#define NISTC_AI_TRIG_START2_POLARITY	BIT(14)
-#define NISTC_AI_TRIG_START2_SYNC	BIT(13)
-#define NISTC_AI_TRIG_START2_EDGE	BIT(12)
-#define NISTC_AI_TRIG_START2_SEL(x)	(((x) & 0x1f) << 7)
-#define NISTC_AI_TRIG_START1_SYNC	BIT(6)
-#define NISTC_AI_TRIG_START1_EDGE	BIT(5)
-#define NISTC_AI_TRIG_START1_SEL(x)	(((x) & 0x1f) << 0)
-
-#define NISTC_AI_DIV_LOADA_REG		64
-
-#define NISTC_AO_START_SEL_REG		66
-#define NISTC_AO_START_UI2_SW_GATE	BIT(15)
-#define NISTC_AO_START_UI2_EXT_GATE_POL	BIT(14)
-#define NISTC_AO_START_POLARITY		BIT(13)
-#define NISTC_AO_START_AOFREQ_ENA	BIT(12)
-#define NISTC_AO_START_UI2_EXT_GATE_SEL(x) (((x) & 0x1f) << 7)
-#define NISTC_AO_START_SYNC		BIT(6)
-#define NISTC_AO_START_EDGE		BIT(5)
-#define NISTC_AO_START_SEL(x)		(((x) & 0x1f) << 0)
-
-#define NISTC_AO_TRIG_SEL_REG		67
-#define NISTC_AO_TRIG_UI2_EXT_GATE_ENA	BIT(15)
-#define NISTC_AO_TRIG_DELAYED_START1	BIT(14)
-#define NISTC_AO_TRIG_START1_POLARITY	BIT(13)
-#define NISTC_AO_TRIG_UI2_SRC_POLARITY	BIT(12)
-#define NISTC_AO_TRIG_UI2_SRC_SEL(x)	(((x) & 0x1f) << 7)
-#define NISTC_AO_TRIG_START1_SYNC	BIT(6)
-#define NISTC_AO_TRIG_START1_EDGE	BIT(5)
-#define NISTC_AO_TRIG_START1_SEL(x)	(((x) & 0x1f) << 0)
-#define NISTC_AO_TRIG_START1_SEL_MASK	NISTC_AO_TRIG_START1_SEL(0x1f)
-
-#define NISTC_G0_AUTOINC_REG		68
-#define NISTC_G1_AUTOINC_REG		69
-
-#define NISTC_AO_MODE3_REG		70
-#define NISTC_AO_MODE3_UI2_SW_NEXT_TC		BIT(13)
-#define NISTC_AO_MODE3_UC_SW_EVERY_BC_TC	BIT(12)
-#define NISTC_AO_MODE3_TRIG_LEN			BIT(11)
-#define NISTC_AO_MODE3_STOP_ON_OVERRUN_ERR	BIT(5)
-#define NISTC_AO_MODE3_STOP_ON_BC_TC_TRIG_ERR	BIT(4)
-#define NISTC_AO_MODE3_STOP_ON_BC_TC_ERR	BIT(3)
-#define NISTC_AO_MODE3_NOT_AN_UPDATE		BIT(2)
-#define NISTC_AO_MODE3_SW_GATE			BIT(1)
-#define NISTC_AO_MODE3_LAST_GATE_DISABLE	BIT(0)	/* M-Series only */
-
-#define NISTC_RESET_REG			72
-#define NISTC_RESET_SOFTWARE		BIT(11)
-#define NISTC_RESET_AO_CFG_END		BIT(9)
-#define NISTC_RESET_AI_CFG_END		BIT(8)
-#define NISTC_RESET_AO_CFG_START	BIT(5)
-#define NISTC_RESET_AI_CFG_START	BIT(4)
-#define NISTC_RESET_G1			BIT(3)
-#define NISTC_RESET_G0			BIT(2)
-#define NISTC_RESET_AO			BIT(1)
-#define NISTC_RESET_AI			BIT(0)
-
-#define NISTC_INTA_ENA_REG		73
-#define NISTC_INTA2_ENA_REG		74
-#define NISTC_INTA_ENA_PASSTHRU0	BIT(9)
-#define NISTC_INTA_ENA_G0_GATE		BIT(8)
-#define NISTC_INTA_ENA_AI_FIFO		BIT(7)
-#define NISTC_INTA_ENA_G0_TC		BIT(6)
-#define NISTC_INTA_ENA_AI_ERR		BIT(5)
-#define NISTC_INTA_ENA_AI_STOP		BIT(4)
-#define NISTC_INTA_ENA_AI_START		BIT(3)
-#define NISTC_INTA_ENA_AI_START2	BIT(2)
-#define NISTC_INTA_ENA_AI_START1	BIT(1)
-#define NISTC_INTA_ENA_AI_SC_TC		BIT(0)
-#define NISTC_INTA_ENA_AI_MASK		(NISTC_INTA_ENA_AI_FIFO |	\
-					 NISTC_INTA_ENA_AI_ERR |	\
-					 NISTC_INTA_ENA_AI_STOP |	\
-					 NISTC_INTA_ENA_AI_START |	\
-					 NISTC_INTA_ENA_AI_START2 |	\
-					 NISTC_INTA_ENA_AI_START1 |	\
-					 NISTC_INTA_ENA_AI_SC_TC)
-
-#define NISTC_INTB_ENA_REG		75
-#define NISTC_INTB2_ENA_REG		76
-#define NISTC_INTB_ENA_PASSTHRU1	BIT(11)
-#define NISTC_INTB_ENA_G1_GATE		BIT(10)
-#define NISTC_INTB_ENA_G1_TC		BIT(9)
-#define NISTC_INTB_ENA_AO_FIFO		BIT(8)
-#define NISTC_INTB_ENA_AO_UI2_TC	BIT(7)
-#define NISTC_INTB_ENA_AO_UC_TC		BIT(6)
-#define NISTC_INTB_ENA_AO_ERR		BIT(5)
-#define NISTC_INTB_ENA_AO_STOP		BIT(4)
-#define NISTC_INTB_ENA_AO_START		BIT(3)
-#define NISTC_INTB_ENA_AO_UPDATE	BIT(2)
-#define NISTC_INTB_ENA_AO_START1	BIT(1)
-#define NISTC_INTB_ENA_AO_BC_TC		BIT(0)
-
-#define NISTC_AI_PERSONAL_REG		77
-#define NISTC_AI_PERSONAL_SHIFTIN_PW		BIT(15)
-#define NISTC_AI_PERSONAL_EOC_POLARITY		BIT(14)
-#define NISTC_AI_PERSONAL_SOC_POLARITY		BIT(13)
-#define NISTC_AI_PERSONAL_SHIFTIN_POL		BIT(12)
-#define NISTC_AI_PERSONAL_CONVERT_TIMEBASE	BIT(11)
-#define NISTC_AI_PERSONAL_CONVERT_PW		BIT(10)
-#define NISTC_AI_PERSONAL_CONVERT_ORIG_PULSE	BIT(9)
-#define NISTC_AI_PERSONAL_FIFO_FLAGS_POL	BIT(8)
-#define NISTC_AI_PERSONAL_OVERRUN_MODE		BIT(7)
-#define NISTC_AI_PERSONAL_EXTMUX_CLK_PW		BIT(6)
-#define NISTC_AI_PERSONAL_LOCALMUX_CLK_PW	BIT(5)
-#define NISTC_AI_PERSONAL_AIFREQ_POL		BIT(4)
-
-#define NISTC_AO_PERSONAL_REG		78
-#define NISTC_AO_PERSONAL_MULTI_DACS		BIT(15)	/* M-Series only */
-#define NISTC_AO_PERSONAL_NUM_DAC		BIT(14)	/* 1:single; 0:dual */
-#define NISTC_AO_PERSONAL_FAST_CPU		BIT(13)	/* M-Series reserved */
-#define NISTC_AO_PERSONAL_TMRDACWR_PW		BIT(12)
-#define NISTC_AO_PERSONAL_FIFO_FLAGS_POL	BIT(11)	/* M-Series reserved */
-#define NISTC_AO_PERSONAL_FIFO_ENA		BIT(10)
-#define NISTC_AO_PERSONAL_AOFREQ_POL		BIT(9)	/* M-Series reserved */
-#define NISTC_AO_PERSONAL_DMA_PIO_CTRL		BIT(8)	/* M-Series reserved */
-#define NISTC_AO_PERSONAL_UPDATE_ORIG_PULSE	BIT(7)
-#define NISTC_AO_PERSONAL_UPDATE_TIMEBASE	BIT(6)
-#define NISTC_AO_PERSONAL_UPDATE_PW		BIT(5)
-#define NISTC_AO_PERSONAL_BC_SRC_SEL		BIT(4)
-#define NISTC_AO_PERSONAL_INTERVAL_BUFFER_MODE	BIT(3)
-
-#define NISTC_RTSI_TRIGA_OUT_REG	79
-#define NISTC_RTSI_TRIGB_OUT_REG	80
-#define NISTC_RTSI_TRIGB_SUB_SEL1	BIT(15)	/* not for M-Series */
-#define NISTC_RTSI_TRIG(_c, _s)		(((_s) & 0xf) << (((_c) % 4) * 4))
-#define NISTC_RTSI_TRIG_MASK(_c)	NISTC_RTSI_TRIG((_c), 0xf)
-#define NISTC_RTSI_TRIG_TO_SRC(_c, _b)	(((_b) >> (((_c) % 4) * 4)) & 0xf)
-
-#define NISTC_RTSI_BOARD_REG		81
-
-#define NISTC_CFG_MEM_CLR_REG		82
-#define NISTC_ADC_FIFO_CLR_REG		83
-#define NISTC_DAC_FIFO_CLR_REG		84
-#define NISTC_WR_STROBE3_REG		85
-
-#define NISTC_AO_OUT_CTRL_REG		86
-#define NISTC_AO_OUT_CTRL_EXT_GATE_ENA		BIT(15)
-#define NISTC_AO_OUT_CTRL_EXT_GATE_SEL(x)	(((x) & 0x1f) << 10)
-#define NISTC_AO_OUT_CTRL_CHANS(x)		(((x) & 0xf) << 6)
-#define NISTC_AO_OUT_CTRL_UPDATE2_SEL(x)	(((x) & 0x3) << 4)
-#define NISTC_AO_OUT_CTRL_EXT_GATE_POL		BIT(3)
-#define NISTC_AO_OUT_CTRL_UPDATE2_TOGGLE	BIT(2)
-#define NISTC_AO_OUT_CTRL_UPDATE_SEL(x)		(((x) & 0x3) << 0)
-#define NISTC_AO_OUT_CTRL_UPDATE_SEL_HIGHZ	NISTC_AO_OUT_CTRL_UPDATE_SEL(0)
-#define NISTC_AO_OUT_CTRL_UPDATE_SEL_GND	NISTC_AO_OUT_CTRL_UPDATE_SEL(1)
-#define NISTC_AO_OUT_CTRL_UPDATE_SEL_LOW	NISTC_AO_OUT_CTRL_UPDATE_SEL(2)
-#define NISTC_AO_OUT_CTRL_UPDATE_SEL_HIGH	NISTC_AO_OUT_CTRL_UPDATE_SEL(3)
-
-#define NISTC_AI_MODE3_REG		87
-#define NISTC_AI_MODE3_TRIG_LEN		BIT(15)
-#define NISTC_AI_MODE3_DELAY_START	BIT(14)
-#define NISTC_AI_MODE3_SOFTWARE_GATE	BIT(13)
-#define NISTC_AI_MODE3_SI_TRIG_DELAY	BIT(12)
-#define NISTC_AI_MODE3_SI2_SRC_SEL	BIT(11)
-#define NISTC_AI_MODE3_DELAYED_START2	BIT(10)
-#define NISTC_AI_MODE3_DELAYED_START1	BIT(9)
-#define NISTC_AI_MODE3_EXT_GATE_MODE	BIT(8)
-#define NISTC_AI_MODE3_FIFO_MODE(x)	(((x) & 0x3) << 6)
-#define NISTC_AI_MODE3_FIFO_MODE_NE	NISTC_AI_MODE3_FIFO_MODE(0)
-#define NISTC_AI_MODE3_FIFO_MODE_HF	NISTC_AI_MODE3_FIFO_MODE(1)
-#define NISTC_AI_MODE3_FIFO_MODE_F	NISTC_AI_MODE3_FIFO_MODE(2)
-#define NISTC_AI_MODE3_FIFO_MODE_HF_E	NISTC_AI_MODE3_FIFO_MODE(3)
-#define NISTC_AI_MODE3_EXT_GATE_POL	BIT(5)
-#define NISTC_AI_MODE3_EXT_GATE_SEL(x)	(((x) & 0x1f) << 0)
-
-#define NISTC_AI_STATUS1_REG		2
-#define NISTC_AI_STATUS1_INTA		BIT(15)
-#define NISTC_AI_STATUS1_FIFO_F		BIT(14)
-#define NISTC_AI_STATUS1_FIFO_HF	BIT(13)
-#define NISTC_AI_STATUS1_FIFO_E		BIT(12)
-#define NISTC_AI_STATUS1_OVERRUN	BIT(11)
-#define NISTC_AI_STATUS1_OVERFLOW	BIT(10)
-#define NISTC_AI_STATUS1_SC_TC_ERR	BIT(9)
-#define NISTC_AI_STATUS1_OVER		(NISTC_AI_STATUS1_OVERRUN |	\
-					 NISTC_AI_STATUS1_OVERFLOW)
-#define NISTC_AI_STATUS1_ERR		(NISTC_AI_STATUS1_OVER |	\
-					 NISTC_AI_STATUS1_SC_TC_ERR)
-#define NISTC_AI_STATUS1_START2		BIT(8)
-#define NISTC_AI_STATUS1_START1		BIT(7)
-#define NISTC_AI_STATUS1_SC_TC		BIT(6)
-#define NISTC_AI_STATUS1_START		BIT(5)
-#define NISTC_AI_STATUS1_STOP		BIT(4)
-#define NISTC_AI_STATUS1_G0_TC		BIT(3)
-#define NISTC_AI_STATUS1_G0_GATE	BIT(2)
-#define NISTC_AI_STATUS1_FIFO_REQ	BIT(1)
-#define NISTC_AI_STATUS1_PASSTHRU0	BIT(0)
-
-#define NISTC_AO_STATUS1_REG		3
-#define NISTC_AO_STATUS1_INTB		BIT(15)
-#define NISTC_AO_STATUS1_FIFO_F		BIT(14)
-#define NISTC_AO_STATUS1_FIFO_HF	BIT(13)
-#define NISTC_AO_STATUS1_FIFO_E		BIT(12)
-#define NISTC_AO_STATUS1_BC_TC_ERR	BIT(11)
-#define NISTC_AO_STATUS1_START		BIT(10)
-#define NISTC_AO_STATUS1_OVERRUN	BIT(9)
-#define NISTC_AO_STATUS1_START1		BIT(8)
-#define NISTC_AO_STATUS1_BC_TC		BIT(7)
-#define NISTC_AO_STATUS1_UC_TC		BIT(6)
-#define NISTC_AO_STATUS1_UPDATE		BIT(5)
-#define NISTC_AO_STATUS1_UI2_TC		BIT(4)
-#define NISTC_AO_STATUS1_G1_TC		BIT(3)
-#define NISTC_AO_STATUS1_G1_GATE	BIT(2)
-#define NISTC_AO_STATUS1_FIFO_REQ	BIT(1)
-#define NISTC_AO_STATUS1_PASSTHRU1	BIT(0)
-
-#define NISTC_G01_STATUS_REG		4
-
-#define NISTC_AI_STATUS2_REG		5
-
-#define NISTC_AO_STATUS2_REG		6
-
-#define NISTC_DIO_IN_REG		7
-
-#define NISTC_G0_HW_SAVE_REG		8
-#define NISTC_G1_HW_SAVE_REG		10
-
-#define NISTC_G0_SAVE_REG		12
-#define NISTC_G1_SAVE_REG		14
-
-#define NISTC_AO_UI_SAVE_REG		16
-#define NISTC_AO_BC_SAVE_REG		18
-#define NISTC_AO_UC_SAVE_REG		20
-
-#define NISTC_STATUS1_REG		27
-#define NISTC_STATUS1_SERIO_IN_PROG	BIT(12)
-
-#define NISTC_DIO_SERIAL_IN_REG		28
-
-#define NISTC_STATUS2_REG		29
-#define NISTC_STATUS2_AO_TMRDACWRS_IN_PROGRESS	BIT(5)
-
-#define NISTC_AI_SI_SAVE_REG		64
-#define NISTC_AI_SC_SAVE_REG		66
-
-/*
- * PCI E Series Registers
- */
-#define NI_E_STC_WINDOW_ADDR_REG	0x00	/* rw16 */
-#define NI_E_STC_WINDOW_DATA_REG	0x02	/* rw16 */
-
-#define NI_E_STATUS_REG			0x01	/* r8 */
-#define NI_E_STATUS_AI_FIFO_LOWER_NE	BIT(3)
-#define NI_E_STATUS_PROMOUT		BIT(0)
-
-#define NI_E_DMA_AI_AO_SEL_REG		0x09	/* w8 */
-#define NI_E_DMA_AI_SEL(x)		(((x) & 0xf) << 0)
-#define NI_E_DMA_AI_SEL_MASK		NI_E_DMA_AI_SEL(0xf)
-#define NI_E_DMA_AO_SEL(x)		(((x) & 0xf) << 4)
-#define NI_E_DMA_AO_SEL_MASK		NI_E_DMA_AO_SEL(0xf)
-
-#define NI_E_DMA_G0_G1_SEL_REG		0x0b	/* w8 */
-#define NI_E_DMA_G0_G1_SEL(_g, _c)	(((_c) & 0xf) << ((_g) * 4))
-#define NI_E_DMA_G0_G1_SEL_MASK(_g)	NI_E_DMA_G0_G1_SEL((_g), 0xf)
-
-#define NI_E_SERIAL_CMD_REG		0x0d	/* w8 */
-#define NI_E_SERIAL_CMD_DAC_LD(x)	BIT(3 + (x))
-#define NI_E_SERIAL_CMD_EEPROM_CS	BIT(2)
-#define NI_E_SERIAL_CMD_SDATA		BIT(1)
-#define NI_E_SERIAL_CMD_SCLK		BIT(0)
-
-#define NI_E_MISC_CMD_REG		0x0f	/* w8 */
-#define NI_E_MISC_CMD_INTEXT_ATRIG(x)	(((x) & 0x1) << 7)
-#define NI_E_MISC_CMD_EXT_ATRIG		NI_E_MISC_CMD_INTEXT_ATRIG(0)
-#define NI_E_MISC_CMD_INT_ATRIG		NI_E_MISC_CMD_INTEXT_ATRIG(1)
-
-#define NI_E_AI_CFG_LO_REG		0x10	/* w16 */
-#define NI_E_AI_CFG_LO_LAST_CHAN	BIT(15)
-#define NI_E_AI_CFG_LO_GEN_TRIG		BIT(12)
-#define NI_E_AI_CFG_LO_DITHER		BIT(9)
-#define NI_E_AI_CFG_LO_UNI		BIT(8)
-#define NI_E_AI_CFG_LO_GAIN(x)		((x) << 0)
-
-#define NI_E_AI_CFG_HI_REG		0x12	/* w16 */
-#define NI_E_AI_CFG_HI_TYPE(x)		(((x) & 0x7) << 12)
-#define NI_E_AI_CFG_HI_TYPE_DIFF	NI_E_AI_CFG_HI_TYPE(1)
-#define NI_E_AI_CFG_HI_TYPE_COMMON	NI_E_AI_CFG_HI_TYPE(2)
-#define NI_E_AI_CFG_HI_TYPE_GROUND	NI_E_AI_CFG_HI_TYPE(3)
-#define NI_E_AI_CFG_HI_AC_COUPLE	BIT(11)
-#define NI_E_AI_CFG_HI_CHAN(x)		(((x) & 0x3f) << 0)
-
-#define NI_E_AO_CFG_REG			0x16	/* w16 */
-#define NI_E_AO_DACSEL(x)		((x) << 8)
-#define NI_E_AO_GROUND_REF		BIT(3)
-#define NI_E_AO_EXT_REF			BIT(2)
-#define NI_E_AO_DEGLITCH		BIT(1)
-#define NI_E_AO_CFG_BIP			BIT(0)
-
-#define NI_E_DAC_DIRECT_DATA_REG(x)	(0x18 + ((x) * 2)) /* w16 */
-
-#define NI_E_8255_BASE			0x19	/* rw8 */
-
-#define NI_E_AI_FIFO_DATA_REG		0x1c	/* r16 */
-
-#define NI_E_AO_FIFO_DATA_REG		0x1e	/* w16 */
-
-/*
- * 611x registers (these boards differ from the e-series)
- */
-#define NI611X_MAGIC_REG		0x19	/* w8 (new) */
-#define NI611X_CALIB_CHAN_SEL_REG	0x1a	/* w16 (new) */
-#define NI611X_AI_FIFO_DATA_REG		0x1c	/* r32 (incompatible) */
-#define NI611X_AI_FIFO_OFFSET_LOAD_REG	0x05	/* r8 (new) */
-#define NI611X_AO_FIFO_DATA_REG		0x14	/* w32 (incompatible) */
-#define NI611X_CAL_GAIN_SEL_REG		0x05	/* w8 (new) */
-
-#define NI611X_AO_WINDOW_ADDR_REG	0x18
-#define NI611X_AO_WINDOW_DATA_REG	0x1e
-
-/*
- * 6143 registers
- */
-#define NI6143_MAGIC_REG		0x19	/* w8 */
-#define NI6143_DMA_G0_G1_SEL_REG	0x0b	/* w8 */
-#define NI6143_PIPELINE_DELAY_REG	0x1f	/* w8 */
-#define NI6143_EOC_SET_REG		0x1d	/* w8 */
-#define NI6143_DMA_AI_SEL_REG		0x09	/* w8 */
-#define NI6143_AI_FIFO_DATA_REG		0x8c	/* r32 */
-#define NI6143_AI_FIFO_FLAG_REG		0x84	/* w32 */
-#define NI6143_AI_FIFO_CTRL_REG		0x88	/* w32 */
-#define NI6143_AI_FIFO_STATUS_REG	0x88	/* r32 */
-#define NI6143_AI_FIFO_DMA_THRESH_REG	0x90	/* w32 */
-#define NI6143_AI_FIFO_WORDS_AVAIL_REG	0x94	/* w32 */
-
-#define NI6143_CALIB_CHAN_REG		0x42	/* w16 */
-#define NI6143_CALIB_CHAN_RELAY_ON	BIT(15)
-#define NI6143_CALIB_CHAN_RELAY_OFF	BIT(14)
-#define NI6143_CALIB_CHAN(x)		(((x) & 0xf) << 0)
-#define NI6143_CALIB_CHAN_GND_GND	NI6143_CALIB_CHAN(0) /* Offset Cal */
-#define NI6143_CALIB_CHAN_2V5_GND	NI6143_CALIB_CHAN(2) /* 2.5V ref */
-#define NI6143_CALIB_CHAN_PWM_GND	NI6143_CALIB_CHAN(5) /* +-5V Self Cal */
-#define NI6143_CALIB_CHAN_2V5_PWM	NI6143_CALIB_CHAN(10) /* PWM Cal */
-#define NI6143_CALIB_CHAN_PWM_PWM	NI6143_CALIB_CHAN(13) /* CMRR */
-#define NI6143_CALIB_CHAN_GND_PWM	NI6143_CALIB_CHAN(14) /* PWM Cal */
-#define NI6143_CALIB_LO_TIME_REG	0x20	/* w16 */
-#define NI6143_CALIB_HI_TIME_REG	0x22	/* w16 */
-#define NI6143_RELAY_COUNTER_LOAD_REG	0x4c	/* w32 */
-#define NI6143_SIGNATURE_REG		0x50	/* w32 */
-#define NI6143_RELEASE_DATE_REG		0x54	/* w32 */
-#define NI6143_RELEASE_OLDEST_DATE_REG	0x58	/* w32 */
-
-/*
- * 671x, 611x windowed ao registers
- */
-#define NI671X_DAC_DIRECT_DATA_REG(x)	(0x00 + (x))	/* w16 */
-#define NI611X_AO_TIMED_REG		0x10	/* w16 */
-#define NI671X_AO_IMMEDIATE_REG		0x11	/* w16 */
-#define NI611X_AO_FIFO_OFFSET_LOAD_REG	0x13	/* w32 */
-#define NI67XX_AO_SP_UPDATES_REG	0x14	/* w16 */
-#define NI611X_AO_WAVEFORM_GEN_REG	0x15	/* w16 */
-#define NI611X_AO_MISC_REG		0x16	/* w16 */
-#define NI611X_AO_MISC_CLEAR_WG		BIT(0)
-#define NI67XX_AO_CAL_CHAN_SEL_REG	0x17	/* w16 */
-#define NI67XX_AO_CFG2_REG		0x18	/* w16 */
-#define NI67XX_CAL_CMD_REG		0x19	/* w16 */
-#define NI67XX_CAL_STATUS_REG		0x1a	/* r8 */
-#define NI67XX_CAL_STATUS_BUSY		BIT(0)
-#define NI67XX_CAL_STATUS_OSC_DETECT	BIT(1)
-#define NI67XX_CAL_STATUS_OVERRANGE	BIT(2)
-#define NI67XX_CAL_DATA_REG		0x1b	/* r16 */
-#define NI67XX_CAL_CFG_HI_REG		0x1c	/* rw16 */
-#define NI67XX_CAL_CFG_LO_REG		0x1d	/* rw16 */
-
-#define CS5529_CMD_CB			BIT(7)
-#define CS5529_CMD_SINGLE_CONV		BIT(6)
-#define CS5529_CMD_CONT_CONV		BIT(5)
-#define CS5529_CMD_READ			BIT(4)
-#define CS5529_CMD_REG(x)		(((x) & 0x7) << 1)
-#define CS5529_CMD_REG_MASK		CS5529_CMD_REG(7)
-#define CS5529_CMD_PWR_SAVE		BIT(0)
-
-#define CS5529_OFFSET_REG		CS5529_CMD_REG(0)
-#define CS5529_GAIN_REG			CS5529_CMD_REG(1)
-#define CS5529_CONV_DATA_REG		CS5529_CMD_REG(3)
-#define CS5529_SETUP_REG		CS5529_CMD_REG(4)
-
-#define CS5529_CFG_REG			CS5529_CMD_REG(2)
-#define CS5529_CFG_AOUT(x)		BIT(22 + (x))
-#define CS5529_CFG_DOUT(x)		BIT(18 + (x))
-#define CS5529_CFG_LOW_PWR_MODE		BIT(16)
-#define CS5529_CFG_WORD_RATE(x)		(((x) & 0x7) << 13)
-#define CS5529_CFG_WORD_RATE_MASK	CS5529_CFG_WORD_RATE(0x7)
-#define CS5529_CFG_WORD_RATE_2180	CS5529_CFG_WORD_RATE(0)
-#define CS5529_CFG_WORD_RATE_1092	CS5529_CFG_WORD_RATE(1)
-#define CS5529_CFG_WORD_RATE_532	CS5529_CFG_WORD_RATE(2)
-#define CS5529_CFG_WORD_RATE_388	CS5529_CFG_WORD_RATE(3)
-#define CS5529_CFG_WORD_RATE_324	CS5529_CFG_WORD_RATE(4)
-#define CS5529_CFG_WORD_RATE_17444	CS5529_CFG_WORD_RATE(5)
-#define CS5529_CFG_WORD_RATE_8724	CS5529_CFG_WORD_RATE(6)
-#define CS5529_CFG_WORD_RATE_4364	CS5529_CFG_WORD_RATE(7)
-#define CS5529_CFG_UNIPOLAR		BIT(12)
-#define CS5529_CFG_RESET		BIT(7)
-#define CS5529_CFG_RESET_VALID		BIT(6)
-#define CS5529_CFG_PORT_FLAG		BIT(5)
-#define CS5529_CFG_PWR_SAVE_SEL		BIT(4)
-#define CS5529_CFG_DONE_FLAG		BIT(3)
-#define CS5529_CFG_CALIB(x)		(((x) & 0x7) << 0)
-#define CS5529_CFG_CALIB_NONE		CS5529_CFG_CALIB(0)
-#define CS5529_CFG_CALIB_OFFSET_SELF	CS5529_CFG_CALIB(1)
-#define CS5529_CFG_CALIB_GAIN_SELF	CS5529_CFG_CALIB(2)
-#define CS5529_CFG_CALIB_BOTH_SELF	CS5529_CFG_CALIB(3)
-#define CS5529_CFG_CALIB_OFFSET_SYS	CS5529_CFG_CALIB(5)
-#define CS5529_CFG_CALIB_GAIN_SYS	CS5529_CFG_CALIB(6)
-
-/*
- * M-Series specific registers not handled by the DAQ-STC and GPCT register
- * remapping.
- */
-#define NI_M_CDIO_DMA_SEL_REG		0x007
-#define NI_M_CDIO_DMA_SEL_CDO(x)	(((x) & 0xf) << 4)
-#define NI_M_CDIO_DMA_SEL_CDO_MASK	NI_M_CDIO_DMA_SEL_CDO(0xf)
-#define NI_M_CDIO_DMA_SEL_CDI(x)	(((x) & 0xf) << 0)
-#define NI_M_CDIO_DMA_SEL_CDI_MASK	NI_M_CDIO_DMA_SEL_CDI(0xf)
-#define NI_M_SCXI_STATUS_REG		0x007
-#define NI_M_AI_AO_SEL_REG		0x009
-#define NI_M_G0_G1_SEL_REG		0x00b
-#define NI_M_MISC_CMD_REG		0x00f
-#define NI_M_SCXI_SER_DO_REG		0x011
-#define NI_M_SCXI_CTRL_REG		0x013
-#define NI_M_SCXI_OUT_ENA_REG		0x015
-#define NI_M_AI_FIFO_DATA_REG		0x01c
-#define NI_M_DIO_REG			0x024
-#define NI_M_DIO_DIR_REG		0x028
-#define NI_M_CAL_PWM_REG		0x040
-#define NI_M_CAL_PWM_HIGH_TIME(x)	(((x) & 0xffff) << 16)
-#define NI_M_CAL_PWM_LOW_TIME(x)	(((x) & 0xffff) << 0)
-#define NI_M_GEN_PWM_REG(x)		(0x044 + ((x) * 2))
-#define NI_M_AI_CFG_FIFO_DATA_REG	0x05e
-#define NI_M_AI_CFG_LAST_CHAN		BIT(14)
-#define NI_M_AI_CFG_DITHER		BIT(13)
-#define NI_M_AI_CFG_POLARITY		BIT(12)
-#define NI_M_AI_CFG_GAIN(x)		(((x) & 0x7) << 9)
-#define NI_M_AI_CFG_CHAN_TYPE(x)	(((x) & 0x7) << 6)
-#define NI_M_AI_CFG_CHAN_TYPE_MASK	NI_M_AI_CFG_CHAN_TYPE(7)
-#define NI_M_AI_CFG_CHAN_TYPE_CALIB	NI_M_AI_CFG_CHAN_TYPE(0)
-#define NI_M_AI_CFG_CHAN_TYPE_DIFF	NI_M_AI_CFG_CHAN_TYPE(1)
-#define NI_M_AI_CFG_CHAN_TYPE_COMMON	NI_M_AI_CFG_CHAN_TYPE(2)
-#define NI_M_AI_CFG_CHAN_TYPE_GROUND	NI_M_AI_CFG_CHAN_TYPE(3)
-#define NI_M_AI_CFG_CHAN_TYPE_AUX	NI_M_AI_CFG_CHAN_TYPE(5)
-#define NI_M_AI_CFG_CHAN_TYPE_GHOST	NI_M_AI_CFG_CHAN_TYPE(7)
-#define NI_M_AI_CFG_BANK_SEL(x)		((((x) & 0x40) << 4) | ((x) & 0x30))
-#define NI_M_AI_CFG_CHAN_SEL(x)		(((x) & 0xf) << 0)
-#define NI_M_INTC_ENA_REG		0x088
-#define NI_M_INTC_ENA			BIT(0)
-#define NI_M_INTC_STATUS_REG		0x088
-#define NI_M_INTC_STATUS		BIT(0)
-#define NI_M_ATRIG_CTRL_REG		0x08c
-#define NI_M_AO_SER_INT_ENA_REG		0x0a0
-#define NI_M_AO_SER_INT_ACK_REG		0x0a1
-#define NI_M_AO_SER_INT_STATUS_REG	0x0a1
-#define NI_M_AO_CALIB_REG		0x0a3
-#define NI_M_AO_FIFO_DATA_REG		0x0a4
-#define NI_M_PFI_FILTER_REG		0x0b0
-#define NI_M_PFI_FILTER_SEL(_c, _f)	(((_f) & 0x3) << ((_c) * 2))
-#define NI_M_PFI_FILTER_SEL_MASK(_c)	NI_M_PFI_FILTER_SEL((_c), 0x3)
-#define NI_M_RTSI_FILTER_REG		0x0b4
-#define NI_M_SCXI_LEGACY_COMPAT_REG	0x0bc
-#define NI_M_DAC_DIRECT_DATA_REG(x)	(0x0c0 + ((x) * 4))
-#define NI_M_AO_WAVEFORM_ORDER_REG(x)	(0x0c2 + ((x) * 4))
-#define NI_M_AO_CFG_BANK_REG(x)		(0x0c3 + ((x) * 4))
-#define NI_M_AO_CFG_BANK_BIPOLAR	BIT(7)
-#define NI_M_AO_CFG_BANK_UPDATE_TIMED	BIT(6)
-#define NI_M_AO_CFG_BANK_REF(x)		(((x) & 0x7) << 3)
-#define NI_M_AO_CFG_BANK_REF_MASK	NI_M_AO_CFG_BANK_REF(7)
-#define NI_M_AO_CFG_BANK_REF_INT_10V	NI_M_AO_CFG_BANK_REF(0)
-#define NI_M_AO_CFG_BANK_REF_INT_5V	NI_M_AO_CFG_BANK_REF(1)
-#define NI_M_AO_CFG_BANK_OFFSET(x)	(((x) & 0x7) << 0)
-#define NI_M_AO_CFG_BANK_OFFSET_MASK	NI_M_AO_CFG_BANK_OFFSET(7)
-#define NI_M_AO_CFG_BANK_OFFSET_0V	NI_M_AO_CFG_BANK_OFFSET(0)
-#define NI_M_AO_CFG_BANK_OFFSET_5V	NI_M_AO_CFG_BANK_OFFSET(1)
-#define NI_M_RTSI_SHARED_MUX_REG	0x1a2
-#define NI_M_CLK_FOUT2_REG		0x1c4
-#define NI_M_CLK_FOUT2_RTSI_10MHZ	BIT(7)
-#define NI_M_CLK_FOUT2_TIMEBASE3_PLL	BIT(6)
-#define NI_M_CLK_FOUT2_TIMEBASE1_PLL	BIT(5)
-#define NI_M_CLK_FOUT2_PLL_SRC(x)	(((x) & 0x1f) << 0)
-#define NI_M_CLK_FOUT2_PLL_SRC_MASK	NI_M_CLK_FOUT2_PLL_SRC(0x1f)
-#define NI_M_MAX_RTSI_CHAN		7
-#define NI_M_CLK_FOUT2_PLL_SRC_RTSI(x)	(((x) == NI_M_MAX_RTSI_CHAN)	\
-					 ? NI_M_CLK_FOUT2_PLL_SRC(0x1b)	\
-					 : NI_M_CLK_FOUT2_PLL_SRC(0xb + (x)))
-#define NI_M_CLK_FOUT2_PLL_SRC_STAR	NI_M_CLK_FOUT2_PLL_SRC(0x14)
-#define NI_M_CLK_FOUT2_PLL_SRC_PXI10	NI_M_CLK_FOUT2_PLL_SRC(0x1d)
-#define NI_M_PLL_CTRL_REG		0x1c6
-#define NI_M_PLL_CTRL_VCO_MODE(x)	(((x) & 0x3) << 13)
-#define NI_M_PLL_CTRL_VCO_MODE_200_325MHZ NI_M_PLL_CTRL_VCO_MODE(0)
-#define NI_M_PLL_CTRL_VCO_MODE_175_225MHZ NI_M_PLL_CTRL_VCO_MODE(1)
-#define NI_M_PLL_CTRL_VCO_MODE_100_225MHZ NI_M_PLL_CTRL_VCO_MODE(2)
-#define NI_M_PLL_CTRL_VCO_MODE_75_150MHZ  NI_M_PLL_CTRL_VCO_MODE(3)
-#define NI_M_PLL_CTRL_ENA		BIT(12)
-#define NI_M_PLL_MAX_DIVISOR		0x10
-#define NI_M_PLL_CTRL_DIVISOR(x)	(((x) & 0xf) << 8)
-#define NI_M_PLL_MAX_MULTIPLIER		0x100
-#define NI_M_PLL_CTRL_MULTIPLIER(x)	(((x) & 0xff) << 0)
-#define NI_M_PLL_STATUS_REG		0x1c8
-#define NI_M_PLL_STATUS_LOCKED		BIT(0)
-#define NI_M_PFI_OUT_SEL_REG(x)		(0x1d0 + ((x) * 2))
-#define NI_M_PFI_CHAN(_c)		(((_c) % 3) * 5)
-#define NI_M_PFI_OUT_SEL(_c, _s)	(((_s) & 0x1f) << NI_M_PFI_CHAN(_c))
-#define NI_M_PFI_OUT_SEL_MASK(_c)	(0x1f << NI_M_PFI_CHAN(_c))
-#define NI_M_PFI_OUT_SEL_TO_SRC(_c, _b)	(((_b) >> NI_M_PFI_CHAN(_c)) & 0x1f)
-#define NI_M_PFI_DI_REG			0x1dc
-#define NI_M_PFI_DO_REG			0x1de
-#define NI_M_CFG_BYPASS_FIFO_REG	0x218
-#define NI_M_CFG_BYPASS_FIFO		BIT(31)
-#define NI_M_CFG_BYPASS_AI_POLARITY	BIT(22)
-#define NI_M_CFG_BYPASS_AI_DITHER	BIT(21)
-#define NI_M_CFG_BYPASS_AI_GAIN(x)	(((x) & 0x7) << 18)
-#define NI_M_CFG_BYPASS_AO_CAL(x)	(((x) & 0xf) << 15)
-#define NI_M_CFG_BYPASS_AO_CAL_MASK	NI_M_CFG_BYPASS_AO_CAL(0xf)
-#define NI_M_CFG_BYPASS_AI_MODE_MUX(x)	(((x) & 0x3) << 13)
-#define NI_M_CFG_BYPASS_AI_MODE_MUX_MASK NI_M_CFG_BYPASS_AI_MODE_MUX(3)
-#define NI_M_CFG_BYPASS_AI_CAL_NEG(x)	(((x) & 0x7) << 10)
-#define NI_M_CFG_BYPASS_AI_CAL_NEG_MASK	NI_M_CFG_BYPASS_AI_CAL_NEG(7)
-#define NI_M_CFG_BYPASS_AI_CAL_POS(x)	(((x) & 0x7) << 7)
-#define NI_M_CFG_BYPASS_AI_CAL_POS_MASK	NI_M_CFG_BYPASS_AI_CAL_POS(7)
-#define NI_M_CFG_BYPASS_AI_CAL_MASK	(NI_M_CFG_BYPASS_AI_CAL_POS_MASK | \
-					 NI_M_CFG_BYPASS_AI_CAL_NEG_MASK | \
-					 NI_M_CFG_BYPASS_AI_MODE_MUX_MASK | \
-					 NI_M_CFG_BYPASS_AO_CAL_MASK)
-#define NI_M_CFG_BYPASS_AI_BANK(x)	(((x) & 0xf) << 3)
-#define NI_M_CFG_BYPASS_AI_BANK_MASK	NI_M_CFG_BYPASS_AI_BANK(0xf)
-#define NI_M_CFG_BYPASS_AI_CHAN(x)	(((x) & 0x7) << 0)
-#define NI_M_CFG_BYPASS_AI_CHAN_MASK	NI_M_CFG_BYPASS_AI_CHAN(7)
-#define NI_M_SCXI_DIO_ENA_REG		0x21c
-#define NI_M_CDI_FIFO_DATA_REG		0x220
-#define NI_M_CDO_FIFO_DATA_REG		0x220
-#define NI_M_CDIO_STATUS_REG		0x224
-#define NI_M_CDIO_STATUS_CDI_OVERFLOW	BIT(20)
-#define NI_M_CDIO_STATUS_CDI_OVERRUN	BIT(19)
-#define NI_M_CDIO_STATUS_CDI_ERROR	(NI_M_CDIO_STATUS_CDI_OVERFLOW | \
-					 NI_M_CDIO_STATUS_CDI_OVERRUN)
-#define NI_M_CDIO_STATUS_CDI_FIFO_REQ	BIT(18)
-#define NI_M_CDIO_STATUS_CDI_FIFO_FULL	BIT(17)
-#define NI_M_CDIO_STATUS_CDI_FIFO_EMPTY	BIT(16)
-#define NI_M_CDIO_STATUS_CDO_UNDERFLOW	BIT(4)
-#define NI_M_CDIO_STATUS_CDO_OVERRUN	BIT(3)
-#define NI_M_CDIO_STATUS_CDO_ERROR	(NI_M_CDIO_STATUS_CDO_UNDERFLOW | \
-					 NI_M_CDIO_STATUS_CDO_OVERRUN)
-#define NI_M_CDIO_STATUS_CDO_FIFO_REQ	BIT(2)
-#define NI_M_CDIO_STATUS_CDO_FIFO_FULL	BIT(1)
-#define NI_M_CDIO_STATUS_CDO_FIFO_EMPTY	BIT(0)
-#define NI_M_CDIO_CMD_REG		0x224
-#define NI_M_CDI_CMD_SW_UPDATE		BIT(20)
-#define NI_M_CDO_CMD_SW_UPDATE		BIT(19)
-#define NI_M_CDO_CMD_F_E_INT_ENA_CLR	BIT(17)
-#define NI_M_CDO_CMD_F_E_INT_ENA_SET	BIT(16)
-#define NI_M_CDI_CMD_ERR_INT_CONFIRM	BIT(15)
-#define NI_M_CDO_CMD_ERR_INT_CONFIRM	BIT(14)
-#define NI_M_CDI_CMD_F_REQ_INT_ENA_CLR	BIT(13)
-#define NI_M_CDI_CMD_F_REQ_INT_ENA_SET	BIT(12)
-#define NI_M_CDO_CMD_F_REQ_INT_ENA_CLR	BIT(11)
-#define NI_M_CDO_CMD_F_REQ_INT_ENA_SET	BIT(10)
-#define NI_M_CDI_CMD_ERR_INT_ENA_CLR	BIT(9)
-#define NI_M_CDI_CMD_ERR_INT_ENA_SET	BIT(8)
-#define NI_M_CDO_CMD_ERR_INT_ENA_CLR	BIT(7)
-#define NI_M_CDO_CMD_ERR_INT_ENA_SET	BIT(6)
-#define NI_M_CDI_CMD_RESET		BIT(5)
-#define NI_M_CDO_CMD_RESET		BIT(4)
-#define NI_M_CDI_CMD_ARM		BIT(3)
-#define NI_M_CDI_CMD_DISARM		BIT(2)
-#define NI_M_CDO_CMD_ARM		BIT(1)
-#define NI_M_CDO_CMD_DISARM		BIT(0)
-#define NI_M_CDI_MODE_REG		0x228
-#define NI_M_CDI_MODE_DATA_LANE(x)	(((x) & 0x3) << 12)
-#define NI_M_CDI_MODE_DATA_LANE_MASK	NI_M_CDI_MODE_DATA_LANE(3)
-#define NI_M_CDI_MODE_DATA_LANE_0_15	NI_M_CDI_MODE_DATA_LANE(0)
-#define NI_M_CDI_MODE_DATA_LANE_16_31	NI_M_CDI_MODE_DATA_LANE(1)
-#define NI_M_CDI_MODE_DATA_LANE_0_7	NI_M_CDI_MODE_DATA_LANE(0)
-#define NI_M_CDI_MODE_DATA_LANE_8_15	NI_M_CDI_MODE_DATA_LANE(1)
-#define NI_M_CDI_MODE_DATA_LANE_16_23	NI_M_CDI_MODE_DATA_LANE(2)
-#define NI_M_CDI_MODE_DATA_LANE_24_31	NI_M_CDI_MODE_DATA_LANE(3)
-#define NI_M_CDI_MODE_FIFO_MODE		BIT(11)
-#define NI_M_CDI_MODE_POLARITY		BIT(10)
-#define NI_M_CDI_MODE_HALT_ON_ERROR	BIT(9)
-#define NI_M_CDI_MODE_SAMPLE_SRC(x)	(((x) & 0x3f) << 0)
-#define NI_M_CDI_MODE_SAMPLE_SRC_MASK	NI_M_CDI_MODE_SAMPLE_SRC(0x3f)
-#define NI_M_CDO_MODE_REG		0x22c
-#define NI_M_CDO_MODE_DATA_LANE(x)	(((x) & 0x3) << 12)
-#define NI_M_CDO_MODE_DATA_LANE_MASK	NI_M_CDO_MODE_DATA_LANE(3)
-#define NI_M_CDO_MODE_DATA_LANE_0_15	NI_M_CDO_MODE_DATA_LANE(0)
-#define NI_M_CDO_MODE_DATA_LANE_16_31	NI_M_CDO_MODE_DATA_LANE(1)
-#define NI_M_CDO_MODE_DATA_LANE_0_7	NI_M_CDO_MODE_DATA_LANE(0)
-#define NI_M_CDO_MODE_DATA_LANE_8_15	NI_M_CDO_MODE_DATA_LANE(1)
-#define NI_M_CDO_MODE_DATA_LANE_16_23	NI_M_CDO_MODE_DATA_LANE(2)
-#define NI_M_CDO_MODE_DATA_LANE_24_31	NI_M_CDO_MODE_DATA_LANE(3)
-#define NI_M_CDO_MODE_FIFO_MODE		BIT(11)
-#define NI_M_CDO_MODE_POLARITY		BIT(10)
-#define NI_M_CDO_MODE_HALT_ON_ERROR	BIT(9)
-#define NI_M_CDO_MODE_RETRANSMIT	BIT(8)
-#define NI_M_CDO_MODE_SAMPLE_SRC(x)	(((x) & 0x3f) << 0)
-#define NI_M_CDO_MODE_SAMPLE_SRC_MASK	NI_M_CDO_MODE_SAMPLE_SRC(0x3f)
-#define NI_M_CDI_MASK_ENA_REG		0x230
-#define NI_M_CDO_MASK_ENA_REG		0x234
-#define NI_M_STATIC_AI_CTRL_REG(x)	((x) ? (0x260 + (x)) : 0x064)
-#define NI_M_AO_REF_ATTENUATION_REG(x)	(0x264 + (x))
-#define NI_M_AO_REF_ATTENUATION_X5	BIT(0)
-
-enum {
-	ai_gain_16 = 0,
-	ai_gain_8,
-	ai_gain_14,
-	ai_gain_4,
-	ai_gain_611x,
-	ai_gain_622x,
-	ai_gain_628x,
-	ai_gain_6143
-};
-
-enum caldac_enum {
-	caldac_none = 0,
-	mb88341,
-	dac8800,
-	dac8043,
-	ad8522,
-	ad8804,
-	ad8842,
-	ad8804_debug
-};
-
-enum ni_reg_type {
-	ni_reg_normal = 0x0,
-	ni_reg_611x = 0x1,
-	ni_reg_6711 = 0x2,
-	ni_reg_6713 = 0x4,
-	ni_reg_67xx_mask = 0x6,
-	ni_reg_6xxx_mask = 0x7,
-	ni_reg_622x = 0x8,
-	ni_reg_625x = 0x10,
-	ni_reg_628x = 0x18,
-	ni_reg_m_series_mask = 0x18,
-	ni_reg_6143 = 0x20
-};
-
-struct ni_board_struct {
-	const char *name;
-	int device_id;
-	int isapnp_id;
-
-	int n_adchan;
-	unsigned int ai_maxdata;
-
-	int ai_fifo_depth;
-	unsigned int alwaysdither:1;
-	int gainlkup;
-	int ai_speed;
-
-	int n_aochan;
-	unsigned int ao_maxdata;
-	int ao_fifo_depth;
-	const struct comedi_lrange *ao_range_table;
-	unsigned ao_speed;
-
-	int reg_type;
-	unsigned int has_8255:1;
-	unsigned int has_32dio_chan:1;
-
-	enum caldac_enum caldac[3];
-};
-
-#define MAX_N_CALDACS			34
-#define MAX_N_AO_CHAN			8
-#define NUM_GPCT			2
-
-#define NUM_PFI_OUTPUT_SELECT_REGS	6
-
-#define M_SERIES_EEPROM_SIZE		1024
-
-struct ni_private {
-	unsigned short dio_output;
-	unsigned short dio_control;
-	int aimode;
-	unsigned int ai_calib_source;
-	unsigned int ai_calib_source_enabled;
-	/* protects access to windowed registers */
-	spinlock_t window_lock;
-	/* protects interrupt/dma register access */
-	spinlock_t soft_reg_copy_lock;
-	/* protects mite DMA channel request/release */
-	spinlock_t mite_channel_lock;
-
-	int changain_state;
-	unsigned int changain_spec;
-
-	unsigned int caldac_maxdata_list[MAX_N_CALDACS];
-	unsigned short caldacs[MAX_N_CALDACS];
-
-	unsigned short ai_cmd2;
-
-	unsigned short ao_conf[MAX_N_AO_CHAN];
-	unsigned short ao_mode1;
-	unsigned short ao_mode2;
-	unsigned short ao_mode3;
-	unsigned short ao_cmd1;
-	unsigned short ao_cmd2;
-	unsigned short ao_trigger_select;
-
-	struct ni_gpct_device *counter_dev;
-	unsigned short an_trig_etc_reg;
-
-	unsigned ai_offset[512];
-
-	unsigned long serial_interval_ns;
-	unsigned char serial_hw_mode;
-	unsigned short clock_and_fout;
-	unsigned short clock_and_fout2;
-
-	unsigned short int_a_enable_reg;
-	unsigned short int_b_enable_reg;
-	unsigned short io_bidirection_pin_reg;
-	unsigned short rtsi_trig_direction_reg;
-	unsigned short rtsi_trig_a_output_reg;
-	unsigned short rtsi_trig_b_output_reg;
-	unsigned short pfi_output_select_reg[NUM_PFI_OUTPUT_SELECT_REGS];
-	unsigned short ai_ao_select_reg;
-	unsigned short g0_g1_select_reg;
-	unsigned short cdio_dma_select_reg;
-
-	unsigned clock_ns;
-	unsigned clock_source;
-
-	unsigned short pwm_up_count;
-	unsigned short pwm_down_count;
-
-	unsigned short ai_fifo_buffer[0x2000];
-	uint8_t eeprom_buffer[M_SERIES_EEPROM_SIZE];
-	__be32 serial_number;
-
-	struct mite_struct *mite;
-	struct mite_channel *ai_mite_chan;
-	struct mite_channel *ao_mite_chan;
-	struct mite_channel *cdo_mite_chan;
-	struct mite_dma_descriptor_ring *ai_mite_ring;
-	struct mite_dma_descriptor_ring *ao_mite_ring;
-	struct mite_dma_descriptor_ring *cdo_mite_ring;
-	struct mite_dma_descriptor_ring *gpct_mite_ring[NUM_GPCT];
-
-	/* ni_pcimio board type flags (based on the boardinfo reg_type) */
-	unsigned int is_m_series:1;
-	unsigned int is_6xxx:1;
-	unsigned int is_611x:1;
-	unsigned int is_6143:1;
-	unsigned int is_622x:1;
-	unsigned int is_625x:1;
-	unsigned int is_628x:1;
-	unsigned int is_67xx:1;
-	unsigned int is_6711:1;
-	unsigned int is_6713:1;
-};
-
-static const struct comedi_lrange range_ni_E_ao_ext;
-
-#endif /* _COMEDI_NI_STC_H */
diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c
deleted file mode 100644
index c20c51bef3e7..000000000000
--- a/drivers/staging/comedi/drivers/ni_tio.c
+++ /dev/null
@@ -1,1436 +0,0 @@
-/*
-  comedi/drivers/ni_tio.c
-  Support for NI general purpose counters
-
-  Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-*/
-
-/*
- * Module: ni_tio
- * Description: National Instruments general purpose counters
- * Author: J.P. Mellor <jpmellor@rose-hulman.edu>,
- *         Herman.Bruyninckx@mech.kuleuven.ac.be,
- *         Wim.Meeussen@mech.kuleuven.ac.be,
- *         Klaas.Gadeyne@mech.kuleuven.ac.be,
- *         Frank Mori Hess <fmhess@users.sourceforge.net>
- * Updated: Thu Nov 16 09:50:32 EST 2006
- * Status: works
- *
- * This module is not used directly by end-users.  Rather, it
- * is used by other drivers (for example ni_660x and ni_pcimio)
- * to provide support for NI's general purpose counters.  It was
- * originally based on the counter code from ni_660x.c and
- * ni_mio_common.c.
- *
- * References:
- * DAQ 660x Register-Level Programmer Manual  (NI 370505A-01)
- * DAQ 6601/6602 User Manual (NI 322137B-01)
- * 340934b.pdf  DAQ-STC reference manual
- */
-
-/*
-TODO:
-	Support use of both banks X and Y
-*/
-
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include "ni_tio_internal.h"
-
-/*
- * clock sources for ni e and m series boards,
- * get bits with GI_SRC_SEL()
- */
-#define NI_M_TIMEBASE_1_CLK		0x0	/* 20MHz */
-#define NI_M_PFI_CLK(x)			(((x) < 10) ? (1 + (x)) : (0xb + (x)))
-#define NI_M_RTSI_CLK(x)		(((x) == 7) ? 0x1b : (0xb + (x)))
-#define NI_M_TIMEBASE_2_CLK		0x12	/* 100KHz */
-#define NI_M_NEXT_TC_CLK		0x13
-#define NI_M_NEXT_GATE_CLK		0x14	/* Gi_Src_SubSelect=0 */
-#define NI_M_PXI_STAR_TRIGGER_CLK	0x14	/* Gi_Src_SubSelect=1 */
-#define NI_M_PXI10_CLK			0x1d
-#define NI_M_TIMEBASE_3_CLK		0x1e	/* 80MHz, Gi_Src_SubSelect=0 */
-#define NI_M_ANALOG_TRIGGER_OUT_CLK	0x1e	/* Gi_Src_SubSelect=1 */
-#define NI_M_LOGIC_LOW_CLK		0x1f
-#define NI_M_MAX_PFI_CHAN		15
-#define NI_M_MAX_RTSI_CHAN		7
-
-/*
- * clock sources for ni_660x boards,
- * get bits with GI_SRC_SEL()
- */
-#define NI_660X_TIMEBASE_1_CLK		0x0	/* 20MHz */
-#define NI_660X_SRC_PIN_I_CLK		0x1
-#define NI_660X_SRC_PIN_CLK(x)		(0x2 + (x))
-#define NI_660X_NEXT_GATE_CLK		0xa
-#define NI_660X_RTSI_CLK(x)		(0xb + (x))
-#define NI_660X_TIMEBASE_2_CLK		0x12	/* 100KHz */
-#define NI_660X_NEXT_TC_CLK		0x13
-#define NI_660X_TIMEBASE_3_CLK		0x1e	/* 80MHz */
-#define NI_660X_LOGIC_LOW_CLK		0x1f
-#define NI_660X_MAX_SRC_PIN		7
-#define NI_660X_MAX_RTSI_CHAN		6
-
-/* ni m series gate_select */
-#define NI_M_TIMESTAMP_MUX_GATE_SEL	0x0
-#define NI_M_PFI_GATE_SEL(x)		(((x) < 10) ? (1 + (x)) : (0xb + (x)))
-#define NI_M_RTSI_GATE_SEL(x)		(((x) == 7) ? 0x1b : (0xb + (x)))
-#define NI_M_AI_START2_GATE_SEL		0x12
-#define NI_M_PXI_STAR_TRIGGER_GATE_SEL	0x13
-#define NI_M_NEXT_OUT_GATE_SEL		0x14
-#define NI_M_AI_START1_GATE_SEL		0x1c
-#define NI_M_NEXT_SRC_GATE_SEL		0x1d
-#define NI_M_ANALOG_TRIG_OUT_GATE_SEL	0x1e
-#define NI_M_LOGIC_LOW_GATE_SEL		0x1f
-
-/* ni_660x gate select */
-#define NI_660X_SRC_PIN_I_GATE_SEL	0x0
-#define NI_660X_GATE_PIN_I_GATE_SEL	0x1
-#define NI_660X_PIN_GATE_SEL(x)		(0x2 + (x))
-#define NI_660X_NEXT_SRC_GATE_SEL	0xa
-#define NI_660X_RTSI_GATE_SEL(x)	(0xb + (x))
-#define NI_660X_NEXT_OUT_GATE_SEL	0x14
-#define NI_660X_LOGIC_LOW_GATE_SEL	0x1f
-#define NI_660X_MAX_GATE_PIN		7
-
-/* ni_660x second gate select */
-#define NI_660X_SRC_PIN_I_GATE2_SEL	0x0
-#define NI_660X_UD_PIN_I_GATE2_SEL	0x1
-#define NI_660X_UD_PIN_GATE2_SEL(x)	(0x2 + (x))
-#define NI_660X_NEXT_SRC_GATE2_SEL	0xa
-#define NI_660X_RTSI_GATE2_SEL(x)	(0xb + (x))
-#define NI_660X_NEXT_OUT_GATE2_SEL	0x14
-#define NI_660X_SELECTED_GATE2_SEL	0x1e
-#define NI_660X_LOGIC_LOW_GATE2_SEL	0x1f
-#define NI_660X_MAX_UP_DOWN_PIN		7
-
-static inline unsigned GI_ALT_SYNC(enum ni_gpct_variant variant)
-{
-	switch (variant) {
-	case ni_gpct_variant_e_series:
-	default:
-		return 0;
-	case ni_gpct_variant_m_series:
-		return GI_M_ALT_SYNC;
-	case ni_gpct_variant_660x:
-		return GI_660X_ALT_SYNC;
-	}
-}
-
-static inline unsigned GI_PRESCALE_X2(enum ni_gpct_variant variant)
-{
-	switch (variant) {
-	case ni_gpct_variant_e_series:
-	default:
-		return 0;
-	case ni_gpct_variant_m_series:
-		return GI_M_PRESCALE_X2;
-	case ni_gpct_variant_660x:
-		return GI_660X_PRESCALE_X2;
-	}
-}
-
-static inline unsigned GI_PRESCALE_X8(enum ni_gpct_variant variant)
-{
-	switch (variant) {
-	case ni_gpct_variant_e_series:
-	default:
-		return 0;
-	case ni_gpct_variant_m_series:
-		return GI_M_PRESCALE_X8;
-	case ni_gpct_variant_660x:
-		return GI_660X_PRESCALE_X8;
-	}
-}
-
-static inline unsigned GI_HW_ARM_SEL_MASK(enum ni_gpct_variant variant)
-{
-	switch (variant) {
-	case ni_gpct_variant_e_series:
-	default:
-		return 0;
-	case ni_gpct_variant_m_series:
-		return GI_M_HW_ARM_SEL_MASK;
-	case ni_gpct_variant_660x:
-		return GI_660X_HW_ARM_SEL_MASK;
-	}
-}
-
-static int ni_tio_has_gate2_registers(const struct ni_gpct_device *counter_dev)
-{
-	switch (counter_dev->variant) {
-	case ni_gpct_variant_e_series:
-	default:
-		return 0;
-	case ni_gpct_variant_m_series:
-	case ni_gpct_variant_660x:
-		return 1;
-	}
-}
-
-static void ni_tio_reset_count_and_disarm(struct ni_gpct *counter)
-{
-	unsigned cidx = counter->counter_index;
-
-	write_register(counter, GI_RESET(cidx), NITIO_RESET_REG(cidx));
-}
-
-static uint64_t ni_tio_clock_period_ps(const struct ni_gpct *counter,
-				       unsigned generic_clock_source)
-{
-	uint64_t clock_period_ps;
-
-	switch (generic_clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK) {
-	case NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS:
-		clock_period_ps = 50000;
-		break;
-	case NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS:
-		clock_period_ps = 10000000;
-		break;
-	case NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS:
-		clock_period_ps = 12500;
-		break;
-	case NI_GPCT_PXI10_CLOCK_SRC_BITS:
-		clock_period_ps = 100000;
-		break;
-	default:
-		/*
-		 * clock period is specified by user with prescaling
-		 * already taken into account.
-		 */
-		return counter->clock_period_ps;
-	}
-
-	switch (generic_clock_source & NI_GPCT_PRESCALE_MODE_CLOCK_SRC_MASK) {
-	case NI_GPCT_NO_PRESCALE_CLOCK_SRC_BITS:
-		break;
-	case NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS:
-		clock_period_ps *= 2;
-		break;
-	case NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS:
-		clock_period_ps *= 8;
-		break;
-	default:
-		BUG();
-		break;
-	}
-	return clock_period_ps;
-}
-
-static unsigned ni_tio_clock_src_modifiers(const struct ni_gpct *counter)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	const unsigned counting_mode_bits =
-		ni_tio_get_soft_copy(counter, NITIO_CNT_MODE_REG(cidx));
-	unsigned bits = 0;
-
-	if (ni_tio_get_soft_copy(counter, NITIO_INPUT_SEL_REG(cidx)) &
-	    GI_SRC_POL_INVERT)
-		bits |= NI_GPCT_INVERT_CLOCK_SRC_BIT;
-	if (counting_mode_bits & GI_PRESCALE_X2(counter_dev->variant))
-		bits |= NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS;
-	if (counting_mode_bits & GI_PRESCALE_X8(counter_dev->variant))
-		bits |= NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS;
-	return bits;
-}
-
-static unsigned ni_m_series_clock_src_select(const struct ni_gpct *counter)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	const unsigned second_gate_reg = NITIO_GATE2_REG(cidx);
-	unsigned clock_source = 0;
-	unsigned src;
-	unsigned i;
-
-	src = GI_BITS_TO_SRC(ni_tio_get_soft_copy(counter,
-						  NITIO_INPUT_SEL_REG(cidx)));
-
-	switch (src) {
-	case NI_M_TIMEBASE_1_CLK:
-		clock_source = NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS;
-		break;
-	case NI_M_TIMEBASE_2_CLK:
-		clock_source = NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS;
-		break;
-	case NI_M_TIMEBASE_3_CLK:
-		if (counter_dev->regs[second_gate_reg] & GI_SRC_SUBSEL)
-			clock_source =
-			    NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS;
-		else
-			clock_source = NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS;
-		break;
-	case NI_M_LOGIC_LOW_CLK:
-		clock_source = NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS;
-		break;
-	case NI_M_NEXT_GATE_CLK:
-		if (counter_dev->regs[second_gate_reg] & GI_SRC_SUBSEL)
-			clock_source = NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS;
-		else
-			clock_source = NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS;
-		break;
-	case NI_M_PXI10_CLK:
-		clock_source = NI_GPCT_PXI10_CLOCK_SRC_BITS;
-		break;
-	case NI_M_NEXT_TC_CLK:
-		clock_source = NI_GPCT_NEXT_TC_CLOCK_SRC_BITS;
-		break;
-	default:
-		for (i = 0; i <= NI_M_MAX_RTSI_CHAN; ++i) {
-			if (src == NI_M_RTSI_CLK(i)) {
-				clock_source = NI_GPCT_RTSI_CLOCK_SRC_BITS(i);
-				break;
-			}
-		}
-		if (i <= NI_M_MAX_RTSI_CHAN)
-			break;
-		for (i = 0; i <= NI_M_MAX_PFI_CHAN; ++i) {
-			if (src == NI_M_PFI_CLK(i)) {
-				clock_source = NI_GPCT_PFI_CLOCK_SRC_BITS(i);
-				break;
-			}
-		}
-		if (i <= NI_M_MAX_PFI_CHAN)
-			break;
-		BUG();
-		break;
-	}
-	clock_source |= ni_tio_clock_src_modifiers(counter);
-	return clock_source;
-}
-
-static unsigned ni_660x_clock_src_select(const struct ni_gpct *counter)
-{
-	unsigned clock_source = 0;
-	unsigned cidx = counter->counter_index;
-	unsigned src;
-	unsigned i;
-
-	src = GI_BITS_TO_SRC(ni_tio_get_soft_copy(counter,
-						  NITIO_INPUT_SEL_REG(cidx)));
-
-	switch (src) {
-	case NI_660X_TIMEBASE_1_CLK:
-		clock_source = NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS;
-		break;
-	case NI_660X_TIMEBASE_2_CLK:
-		clock_source = NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS;
-		break;
-	case NI_660X_TIMEBASE_3_CLK:
-		clock_source = NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS;
-		break;
-	case NI_660X_LOGIC_LOW_CLK:
-		clock_source = NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS;
-		break;
-	case NI_660X_SRC_PIN_I_CLK:
-		clock_source = NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS;
-		break;
-	case NI_660X_NEXT_GATE_CLK:
-		clock_source = NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS;
-		break;
-	case NI_660X_NEXT_TC_CLK:
-		clock_source = NI_GPCT_NEXT_TC_CLOCK_SRC_BITS;
-		break;
-	default:
-		for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) {
-			if (src == NI_660X_RTSI_CLK(i)) {
-				clock_source = NI_GPCT_RTSI_CLOCK_SRC_BITS(i);
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_RTSI_CHAN)
-			break;
-		for (i = 0; i <= NI_660X_MAX_SRC_PIN; ++i) {
-			if (src == NI_660X_SRC_PIN_CLK(i)) {
-				clock_source =
-				    NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(i);
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_SRC_PIN)
-			break;
-		BUG();
-		break;
-	}
-	clock_source |= ni_tio_clock_src_modifiers(counter);
-	return clock_source;
-}
-
-static unsigned ni_tio_generic_clock_src_select(const struct ni_gpct *counter)
-{
-	switch (counter->counter_dev->variant) {
-	case ni_gpct_variant_e_series:
-	case ni_gpct_variant_m_series:
-	default:
-		return ni_m_series_clock_src_select(counter);
-	case ni_gpct_variant_660x:
-		return ni_660x_clock_src_select(counter);
-	}
-}
-
-static void ni_tio_set_sync_mode(struct ni_gpct *counter, int force_alt_sync)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	const unsigned counting_mode_reg = NITIO_CNT_MODE_REG(cidx);
-	static const uint64_t min_normal_sync_period_ps = 25000;
-	unsigned mode;
-	uint64_t clock_period_ps;
-
-	if (ni_tio_counting_mode_registers_present(counter_dev) == 0)
-		return;
-
-	mode = ni_tio_get_soft_copy(counter, counting_mode_reg);
-	switch (mode & GI_CNT_MODE_MASK) {
-	case GI_CNT_MODE_QUADX1:
-	case GI_CNT_MODE_QUADX2:
-	case GI_CNT_MODE_QUADX4:
-	case GI_CNT_MODE_SYNC_SRC:
-		force_alt_sync = 1;
-		break;
-	default:
-		break;
-	}
-
-	clock_period_ps = ni_tio_clock_period_ps(counter,
-				ni_tio_generic_clock_src_select(counter));
-
-	/*
-	 * It's not clear what we should do if clock_period is unknown, so we
-	 * are not using the alt sync bit in that case, but allow the caller
-	 * to decide by using the force_alt_sync parameter.
-	 */
-	if (force_alt_sync ||
-	    (clock_period_ps && clock_period_ps < min_normal_sync_period_ps)) {
-		ni_tio_set_bits(counter, counting_mode_reg,
-				GI_ALT_SYNC(counter_dev->variant),
-				GI_ALT_SYNC(counter_dev->variant));
-	} else {
-		ni_tio_set_bits(counter, counting_mode_reg,
-				GI_ALT_SYNC(counter_dev->variant),
-				0x0);
-	}
-}
-
-static int ni_tio_set_counter_mode(struct ni_gpct *counter, unsigned mode)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned mode_reg_mask;
-	unsigned mode_reg_values;
-	unsigned input_select_bits = 0;
-	/* these bits map directly on to the mode register */
-	static const unsigned mode_reg_direct_mask =
-	    NI_GPCT_GATE_ON_BOTH_EDGES_BIT | NI_GPCT_EDGE_GATE_MODE_MASK |
-	    NI_GPCT_STOP_MODE_MASK | NI_GPCT_OUTPUT_MODE_MASK |
-	    NI_GPCT_HARDWARE_DISARM_MASK | NI_GPCT_LOADING_ON_TC_BIT |
-	    NI_GPCT_LOADING_ON_GATE_BIT | NI_GPCT_LOAD_B_SELECT_BIT;
-
-	mode_reg_mask = mode_reg_direct_mask | GI_RELOAD_SRC_SWITCHING;
-	mode_reg_values = mode & mode_reg_direct_mask;
-	switch (mode & NI_GPCT_RELOAD_SOURCE_MASK) {
-	case NI_GPCT_RELOAD_SOURCE_FIXED_BITS:
-		break;
-	case NI_GPCT_RELOAD_SOURCE_SWITCHING_BITS:
-		mode_reg_values |= GI_RELOAD_SRC_SWITCHING;
-		break;
-	case NI_GPCT_RELOAD_SOURCE_GATE_SELECT_BITS:
-		input_select_bits |= GI_GATE_SEL_LOAD_SRC;
-		mode_reg_mask |= GI_GATING_MODE_MASK;
-		mode_reg_values |= GI_LEVEL_GATING;
-		break;
-	default:
-		break;
-	}
-	ni_tio_set_bits(counter, NITIO_MODE_REG(cidx),
-			mode_reg_mask, mode_reg_values);
-
-	if (ni_tio_counting_mode_registers_present(counter_dev)) {
-		unsigned bits = 0;
-
-		bits |= GI_CNT_MODE(mode >> NI_GPCT_COUNTING_MODE_SHIFT);
-		bits |= GI_INDEX_PHASE((mode >> NI_GPCT_INDEX_PHASE_BITSHIFT));
-		if (mode & NI_GPCT_INDEX_ENABLE_BIT)
-			bits |= GI_INDEX_MODE;
-		ni_tio_set_bits(counter, NITIO_CNT_MODE_REG(cidx),
-				GI_CNT_MODE_MASK | GI_INDEX_PHASE_MASK |
-				GI_INDEX_MODE, bits);
-		ni_tio_set_sync_mode(counter, 0);
-	}
-
-	ni_tio_set_bits(counter, NITIO_CMD_REG(cidx), GI_CNT_DIR_MASK,
-			GI_CNT_DIR(mode >> NI_GPCT_COUNTING_DIRECTION_SHIFT));
-
-	if (mode & NI_GPCT_OR_GATE_BIT)
-		input_select_bits |= GI_OR_GATE;
-	if (mode & NI_GPCT_INVERT_OUTPUT_BIT)
-		input_select_bits |= GI_OUTPUT_POL_INVERT;
-	ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx),
-			GI_GATE_SEL_LOAD_SRC | GI_OR_GATE |
-			GI_OUTPUT_POL_INVERT, input_select_bits);
-
-	return 0;
-}
-
-int ni_tio_arm(struct ni_gpct *counter, int arm, unsigned start_trigger)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned command_transient_bits = 0;
-
-	if (arm) {
-		switch (start_trigger) {
-		case NI_GPCT_ARM_IMMEDIATE:
-			command_transient_bits |= GI_ARM;
-			break;
-		case NI_GPCT_ARM_PAIRED_IMMEDIATE:
-			command_transient_bits |= GI_ARM | GI_ARM_COPY;
-			break;
-		default:
-			break;
-		}
-		if (ni_tio_counting_mode_registers_present(counter_dev)) {
-			unsigned bits = 0;
-			unsigned sel_mask;
-
-			sel_mask = GI_HW_ARM_SEL_MASK(counter_dev->variant);
-
-			switch (start_trigger) {
-			case NI_GPCT_ARM_IMMEDIATE:
-			case NI_GPCT_ARM_PAIRED_IMMEDIATE:
-				break;
-			default:
-				if (start_trigger & NI_GPCT_ARM_UNKNOWN) {
-					/*
-					 * pass-through the least significant
-					 * bits so we can figure out what
-					 * select later
-					 */
-					bits |= GI_HW_ARM_ENA |
-						(GI_HW_ARM_SEL(start_trigger) &
-						 sel_mask);
-				} else {
-					return -EINVAL;
-				}
-				break;
-			}
-			ni_tio_set_bits(counter, NITIO_CNT_MODE_REG(cidx),
-					GI_HW_ARM_ENA | sel_mask, bits);
-		}
-	} else {
-		command_transient_bits |= GI_DISARM;
-	}
-	ni_tio_set_bits_transient(counter, NITIO_CMD_REG(cidx),
-				  0, 0, command_transient_bits);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(ni_tio_arm);
-
-static unsigned ni_660x_clk_src(unsigned int clock_source)
-{
-	unsigned clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK;
-	unsigned ni_660x_clock;
-	unsigned i;
-
-	switch (clk_src) {
-	case NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS:
-		ni_660x_clock = NI_660X_TIMEBASE_1_CLK;
-		break;
-	case NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS:
-		ni_660x_clock = NI_660X_TIMEBASE_2_CLK;
-		break;
-	case NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS:
-		ni_660x_clock = NI_660X_TIMEBASE_3_CLK;
-		break;
-	case NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS:
-		ni_660x_clock = NI_660X_LOGIC_LOW_CLK;
-		break;
-	case NI_GPCT_SOURCE_PIN_i_CLOCK_SRC_BITS:
-		ni_660x_clock = NI_660X_SRC_PIN_I_CLK;
-		break;
-	case NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS:
-		ni_660x_clock = NI_660X_NEXT_GATE_CLK;
-		break;
-	case NI_GPCT_NEXT_TC_CLOCK_SRC_BITS:
-		ni_660x_clock = NI_660X_NEXT_TC_CLK;
-		break;
-	default:
-		for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) {
-			if (clk_src == NI_GPCT_RTSI_CLOCK_SRC_BITS(i)) {
-				ni_660x_clock = NI_660X_RTSI_CLK(i);
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_RTSI_CHAN)
-			break;
-		for (i = 0; i <= NI_660X_MAX_SRC_PIN; ++i) {
-			if (clk_src == NI_GPCT_SOURCE_PIN_CLOCK_SRC_BITS(i)) {
-				ni_660x_clock = NI_660X_SRC_PIN_CLK(i);
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_SRC_PIN)
-			break;
-		ni_660x_clock = 0;
-		BUG();
-		break;
-	}
-	return GI_SRC_SEL(ni_660x_clock);
-}
-
-static unsigned ni_m_clk_src(unsigned int clock_source)
-{
-	unsigned clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK;
-	unsigned ni_m_series_clock;
-	unsigned i;
-
-	switch (clk_src) {
-	case NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_TIMEBASE_1_CLK;
-		break;
-	case NI_GPCT_TIMEBASE_2_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_TIMEBASE_2_CLK;
-		break;
-	case NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_TIMEBASE_3_CLK;
-		break;
-	case NI_GPCT_LOGIC_LOW_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_LOGIC_LOW_CLK;
-		break;
-	case NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_NEXT_GATE_CLK;
-		break;
-	case NI_GPCT_NEXT_TC_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_NEXT_TC_CLK;
-		break;
-	case NI_GPCT_PXI10_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_PXI10_CLK;
-		break;
-	case NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_PXI_STAR_TRIGGER_CLK;
-		break;
-	case NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS:
-		ni_m_series_clock = NI_M_ANALOG_TRIGGER_OUT_CLK;
-		break;
-	default:
-		for (i = 0; i <= NI_M_MAX_RTSI_CHAN; ++i) {
-			if (clk_src == NI_GPCT_RTSI_CLOCK_SRC_BITS(i)) {
-				ni_m_series_clock = NI_M_RTSI_CLK(i);
-				break;
-			}
-		}
-		if (i <= NI_M_MAX_RTSI_CHAN)
-			break;
-		for (i = 0; i <= NI_M_MAX_PFI_CHAN; ++i) {
-			if (clk_src == NI_GPCT_PFI_CLOCK_SRC_BITS(i)) {
-				ni_m_series_clock = NI_M_PFI_CLK(i);
-				break;
-			}
-		}
-		if (i <= NI_M_MAX_PFI_CHAN)
-			break;
-		pr_err("invalid clock source 0x%lx\n",
-		       (unsigned long)clock_source);
-		BUG();
-		ni_m_series_clock = 0;
-		break;
-	}
-	return GI_SRC_SEL(ni_m_series_clock);
-};
-
-static void ni_tio_set_source_subselect(struct ni_gpct *counter,
-					unsigned int clock_source)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	const unsigned second_gate_reg = NITIO_GATE2_REG(cidx);
-
-	if (counter_dev->variant != ni_gpct_variant_m_series)
-		return;
-	switch (clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK) {
-		/* Gi_Source_Subselect is zero */
-	case NI_GPCT_NEXT_GATE_CLOCK_SRC_BITS:
-	case NI_GPCT_TIMEBASE_3_CLOCK_SRC_BITS:
-		counter_dev->regs[second_gate_reg] &= ~GI_SRC_SUBSEL;
-		break;
-		/* Gi_Source_Subselect is one */
-	case NI_GPCT_ANALOG_TRIGGER_OUT_CLOCK_SRC_BITS:
-	case NI_GPCT_PXI_STAR_TRIGGER_CLOCK_SRC_BITS:
-		counter_dev->regs[second_gate_reg] |= GI_SRC_SUBSEL;
-		break;
-		/* Gi_Source_Subselect doesn't matter */
-	default:
-		return;
-	}
-	write_register(counter, counter_dev->regs[second_gate_reg],
-		       second_gate_reg);
-}
-
-static int ni_tio_set_clock_src(struct ni_gpct *counter,
-				unsigned int clock_source,
-				unsigned int period_ns)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned bits = 0;
-
-	/* FIXME: validate clock source */
-	switch (counter_dev->variant) {
-	case ni_gpct_variant_660x:
-		bits |= ni_660x_clk_src(clock_source);
-		break;
-	case ni_gpct_variant_e_series:
-	case ni_gpct_variant_m_series:
-	default:
-		bits |= ni_m_clk_src(clock_source);
-		break;
-	}
-	if (clock_source & NI_GPCT_INVERT_CLOCK_SRC_BIT)
-		bits |= GI_SRC_POL_INVERT;
-	ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx),
-			GI_SRC_SEL_MASK | GI_SRC_POL_INVERT, bits);
-	ni_tio_set_source_subselect(counter, clock_source);
-
-	if (ni_tio_counting_mode_registers_present(counter_dev)) {
-		bits = 0;
-		switch (clock_source & NI_GPCT_PRESCALE_MODE_CLOCK_SRC_MASK) {
-		case NI_GPCT_NO_PRESCALE_CLOCK_SRC_BITS:
-			break;
-		case NI_GPCT_PRESCALE_X2_CLOCK_SRC_BITS:
-			bits |= GI_PRESCALE_X2(counter_dev->variant);
-			break;
-		case NI_GPCT_PRESCALE_X8_CLOCK_SRC_BITS:
-			bits |= GI_PRESCALE_X8(counter_dev->variant);
-			break;
-		default:
-			return -EINVAL;
-		}
-		ni_tio_set_bits(counter, NITIO_CNT_MODE_REG(cidx),
-				GI_PRESCALE_X2(counter_dev->variant) |
-				GI_PRESCALE_X8(counter_dev->variant), bits);
-	}
-	counter->clock_period_ps = period_ns * 1000;
-	ni_tio_set_sync_mode(counter, 0);
-	return 0;
-}
-
-static void ni_tio_get_clock_src(struct ni_gpct *counter,
-				 unsigned int *clock_source,
-				 unsigned int *period_ns)
-{
-	uint64_t temp64;
-
-	*clock_source = ni_tio_generic_clock_src_select(counter);
-	temp64 = ni_tio_clock_period_ps(counter, *clock_source);
-	do_div(temp64, 1000);	/* ps to ns */
-	*period_ns = temp64;
-}
-
-static int ni_660x_set_gate(struct ni_gpct *counter, unsigned int gate_source)
-{
-	unsigned int chan = CR_CHAN(gate_source);
-	unsigned cidx = counter->counter_index;
-	unsigned gate_sel;
-	unsigned i;
-
-	switch (chan) {
-	case NI_GPCT_NEXT_SOURCE_GATE_SELECT:
-		gate_sel = NI_660X_NEXT_SRC_GATE_SEL;
-		break;
-	case NI_GPCT_NEXT_OUT_GATE_SELECT:
-	case NI_GPCT_LOGIC_LOW_GATE_SELECT:
-	case NI_GPCT_SOURCE_PIN_i_GATE_SELECT:
-	case NI_GPCT_GATE_PIN_i_GATE_SELECT:
-		gate_sel = chan & 0x1f;
-		break;
-	default:
-		for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) {
-			if (chan == NI_GPCT_RTSI_GATE_SELECT(i)) {
-				gate_sel = chan & 0x1f;
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_RTSI_CHAN)
-			break;
-		for (i = 0; i <= NI_660X_MAX_GATE_PIN; ++i) {
-			if (chan == NI_GPCT_GATE_PIN_GATE_SELECT(i)) {
-				gate_sel = chan & 0x1f;
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_GATE_PIN)
-			break;
-		return -EINVAL;
-	}
-	ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx),
-			GI_GATE_SEL_MASK, GI_GATE_SEL(gate_sel));
-	return 0;
-}
-
-static int ni_m_set_gate(struct ni_gpct *counter, unsigned int gate_source)
-{
-	unsigned int chan = CR_CHAN(gate_source);
-	unsigned cidx = counter->counter_index;
-	unsigned gate_sel;
-	unsigned i;
-
-	switch (chan) {
-	case NI_GPCT_TIMESTAMP_MUX_GATE_SELECT:
-	case NI_GPCT_AI_START2_GATE_SELECT:
-	case NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT:
-	case NI_GPCT_NEXT_OUT_GATE_SELECT:
-	case NI_GPCT_AI_START1_GATE_SELECT:
-	case NI_GPCT_NEXT_SOURCE_GATE_SELECT:
-	case NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT:
-	case NI_GPCT_LOGIC_LOW_GATE_SELECT:
-		gate_sel = chan & 0x1f;
-		break;
-	default:
-		for (i = 0; i <= NI_M_MAX_RTSI_CHAN; ++i) {
-			if (chan == NI_GPCT_RTSI_GATE_SELECT(i)) {
-				gate_sel = chan & 0x1f;
-				break;
-			}
-		}
-		if (i <= NI_M_MAX_RTSI_CHAN)
-			break;
-		for (i = 0; i <= NI_M_MAX_PFI_CHAN; ++i) {
-			if (chan == NI_GPCT_PFI_GATE_SELECT(i)) {
-				gate_sel = chan & 0x1f;
-				break;
-			}
-		}
-		if (i <= NI_M_MAX_PFI_CHAN)
-			break;
-		return -EINVAL;
-	}
-	ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx),
-			GI_GATE_SEL_MASK, GI_GATE_SEL(gate_sel));
-	return 0;
-}
-
-static int ni_660x_set_gate2(struct ni_gpct *counter, unsigned int gate_source)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned int chan = CR_CHAN(gate_source);
-	unsigned gate2_reg = NITIO_GATE2_REG(cidx);
-	unsigned gate2_sel;
-	unsigned i;
-
-	switch (chan) {
-	case NI_GPCT_SOURCE_PIN_i_GATE_SELECT:
-	case NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT:
-	case NI_GPCT_SELECTED_GATE_GATE_SELECT:
-	case NI_GPCT_NEXT_OUT_GATE_SELECT:
-	case NI_GPCT_LOGIC_LOW_GATE_SELECT:
-		gate2_sel = chan & 0x1f;
-		break;
-	case NI_GPCT_NEXT_SOURCE_GATE_SELECT:
-		gate2_sel = NI_660X_NEXT_SRC_GATE2_SEL;
-		break;
-	default:
-		for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) {
-			if (chan == NI_GPCT_RTSI_GATE_SELECT(i)) {
-				gate2_sel = chan & 0x1f;
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_RTSI_CHAN)
-			break;
-		for (i = 0; i <= NI_660X_MAX_UP_DOWN_PIN; ++i) {
-			if (chan == NI_GPCT_UP_DOWN_PIN_GATE_SELECT(i)) {
-				gate2_sel = chan & 0x1f;
-				break;
-			}
-		}
-		if (i <= NI_660X_MAX_UP_DOWN_PIN)
-			break;
-		return -EINVAL;
-	}
-	counter_dev->regs[gate2_reg] |= GI_GATE2_MODE;
-	counter_dev->regs[gate2_reg] &= ~GI_GATE2_SEL_MASK;
-	counter_dev->regs[gate2_reg] |= GI_GATE2_SEL(gate2_sel);
-	write_register(counter, counter_dev->regs[gate2_reg], gate2_reg);
-	return 0;
-}
-
-static int ni_m_set_gate2(struct ni_gpct *counter, unsigned int gate_source)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned int chan = CR_CHAN(gate_source);
-	unsigned gate2_reg = NITIO_GATE2_REG(cidx);
-	unsigned gate2_sel;
-
-	/*
-	 * FIXME: We don't know what the m-series second gate codes are,
-	 * so we'll just pass the bits through for now.
-	 */
-	switch (chan) {
-	default:
-		gate2_sel = chan & 0x1f;
-		break;
-	}
-	counter_dev->regs[gate2_reg] |= GI_GATE2_MODE;
-	counter_dev->regs[gate2_reg] &= ~GI_GATE2_SEL_MASK;
-	counter_dev->regs[gate2_reg] |= GI_GATE2_SEL(gate2_sel);
-	write_register(counter, counter_dev->regs[gate2_reg], gate2_reg);
-	return 0;
-}
-
-int ni_tio_set_gate_src(struct ni_gpct *counter, unsigned gate_index,
-			unsigned int gate_source)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned int chan = CR_CHAN(gate_source);
-	unsigned gate2_reg = NITIO_GATE2_REG(cidx);
-	unsigned mode = 0;
-
-	switch (gate_index) {
-	case 0:
-		if (chan == NI_GPCT_DISABLED_GATE_SELECT) {
-			ni_tio_set_bits(counter, NITIO_MODE_REG(cidx),
-					GI_GATING_MODE_MASK,
-					GI_GATING_DISABLED);
-			return 0;
-		}
-		if (gate_source & CR_INVERT)
-			mode |= GI_GATE_POL_INVERT;
-		if (gate_source & CR_EDGE)
-			mode |= GI_RISING_EDGE_GATING;
-		else
-			mode |= GI_LEVEL_GATING;
-		ni_tio_set_bits(counter, NITIO_MODE_REG(cidx),
-				GI_GATE_POL_INVERT | GI_GATING_MODE_MASK,
-				mode);
-		switch (counter_dev->variant) {
-		case ni_gpct_variant_e_series:
-		case ni_gpct_variant_m_series:
-		default:
-			return ni_m_set_gate(counter, gate_source);
-		case ni_gpct_variant_660x:
-			return ni_660x_set_gate(counter, gate_source);
-		}
-		break;
-	case 1:
-		if (!ni_tio_has_gate2_registers(counter_dev))
-			return -EINVAL;
-
-		if (chan == NI_GPCT_DISABLED_GATE_SELECT) {
-			counter_dev->regs[gate2_reg] &= ~GI_GATE2_MODE;
-			write_register(counter, counter_dev->regs[gate2_reg],
-				       gate2_reg);
-			return 0;
-		}
-		if (gate_source & CR_INVERT)
-			counter_dev->regs[gate2_reg] |= GI_GATE2_POL_INVERT;
-		else
-			counter_dev->regs[gate2_reg] &= ~GI_GATE2_POL_INVERT;
-		switch (counter_dev->variant) {
-		case ni_gpct_variant_m_series:
-			return ni_m_set_gate2(counter, gate_source);
-		case ni_gpct_variant_660x:
-			return ni_660x_set_gate2(counter, gate_source);
-		default:
-			BUG();
-			break;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(ni_tio_set_gate_src);
-
-static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned index,
-				unsigned int source)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned int abz_reg, shift, mask;
-
-	if (counter_dev->variant != ni_gpct_variant_m_series)
-		return -EINVAL;
-
-	abz_reg = NITIO_ABZ_REG(cidx);
-	switch (index) {
-	case NI_GPCT_SOURCE_ENCODER_A:
-		shift = 10;
-		break;
-	case NI_GPCT_SOURCE_ENCODER_B:
-		shift = 5;
-		break;
-	case NI_GPCT_SOURCE_ENCODER_Z:
-		shift = 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-	mask = 0x1f << shift;
-	if (source > 0x1f)
-		source = 0x1f;	/* Disable gate */
-
-	counter_dev->regs[abz_reg] &= ~mask;
-	counter_dev->regs[abz_reg] |= (source << shift) & mask;
-	write_register(counter, counter_dev->regs[abz_reg], abz_reg);
-	return 0;
-}
-
-static unsigned ni_660x_gate_to_generic_gate(unsigned gate)
-{
-	unsigned i;
-
-	switch (gate) {
-	case NI_660X_SRC_PIN_I_GATE_SEL:
-		return NI_GPCT_SOURCE_PIN_i_GATE_SELECT;
-	case NI_660X_GATE_PIN_I_GATE_SEL:
-		return NI_GPCT_GATE_PIN_i_GATE_SELECT;
-	case NI_660X_NEXT_SRC_GATE_SEL:
-		return NI_GPCT_NEXT_SOURCE_GATE_SELECT;
-	case NI_660X_NEXT_OUT_GATE_SEL:
-		return NI_GPCT_NEXT_OUT_GATE_SELECT;
-	case NI_660X_LOGIC_LOW_GATE_SEL:
-		return NI_GPCT_LOGIC_LOW_GATE_SELECT;
-	default:
-		for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) {
-			if (gate == NI_660X_RTSI_GATE_SEL(i))
-				return NI_GPCT_RTSI_GATE_SELECT(i);
-		}
-		for (i = 0; i <= NI_660X_MAX_GATE_PIN; ++i) {
-			if (gate == NI_660X_PIN_GATE_SEL(i))
-				return NI_GPCT_GATE_PIN_GATE_SELECT(i);
-		}
-		BUG();
-		break;
-	}
-	return 0;
-};
-
-static unsigned ni_m_gate_to_generic_gate(unsigned gate)
-{
-	unsigned i;
-
-	switch (gate) {
-	case NI_M_TIMESTAMP_MUX_GATE_SEL:
-		return NI_GPCT_TIMESTAMP_MUX_GATE_SELECT;
-	case NI_M_AI_START2_GATE_SEL:
-		return NI_GPCT_AI_START2_GATE_SELECT;
-	case NI_M_PXI_STAR_TRIGGER_GATE_SEL:
-		return NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT;
-	case NI_M_NEXT_OUT_GATE_SEL:
-		return NI_GPCT_NEXT_OUT_GATE_SELECT;
-	case NI_M_AI_START1_GATE_SEL:
-		return NI_GPCT_AI_START1_GATE_SELECT;
-	case NI_M_NEXT_SRC_GATE_SEL:
-		return NI_GPCT_NEXT_SOURCE_GATE_SELECT;
-	case NI_M_ANALOG_TRIG_OUT_GATE_SEL:
-		return NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT;
-	case NI_M_LOGIC_LOW_GATE_SEL:
-		return NI_GPCT_LOGIC_LOW_GATE_SELECT;
-	default:
-		for (i = 0; i <= NI_M_MAX_RTSI_CHAN; ++i) {
-			if (gate == NI_M_RTSI_GATE_SEL(i))
-				return NI_GPCT_RTSI_GATE_SELECT(i);
-		}
-		for (i = 0; i <= NI_M_MAX_PFI_CHAN; ++i) {
-			if (gate == NI_M_PFI_GATE_SEL(i))
-				return NI_GPCT_PFI_GATE_SELECT(i);
-		}
-		BUG();
-		break;
-	}
-	return 0;
-};
-
-static unsigned ni_660x_gate2_to_generic_gate(unsigned gate)
-{
-	unsigned i;
-
-	switch (gate) {
-	case NI_660X_SRC_PIN_I_GATE2_SEL:
-		return NI_GPCT_SOURCE_PIN_i_GATE_SELECT;
-	case NI_660X_UD_PIN_I_GATE2_SEL:
-		return NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT;
-	case NI_660X_NEXT_SRC_GATE2_SEL:
-		return NI_GPCT_NEXT_SOURCE_GATE_SELECT;
-	case NI_660X_NEXT_OUT_GATE2_SEL:
-		return NI_GPCT_NEXT_OUT_GATE_SELECT;
-	case NI_660X_SELECTED_GATE2_SEL:
-		return NI_GPCT_SELECTED_GATE_GATE_SELECT;
-	case NI_660X_LOGIC_LOW_GATE2_SEL:
-		return NI_GPCT_LOGIC_LOW_GATE_SELECT;
-	default:
-		for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) {
-			if (gate == NI_660X_RTSI_GATE2_SEL(i))
-				return NI_GPCT_RTSI_GATE_SELECT(i);
-		}
-		for (i = 0; i <= NI_660X_MAX_UP_DOWN_PIN; ++i) {
-			if (gate == NI_660X_UD_PIN_GATE2_SEL(i))
-				return NI_GPCT_UP_DOWN_PIN_GATE_SELECT(i);
-		}
-		BUG();
-		break;
-	}
-	return 0;
-};
-
-static unsigned ni_m_gate2_to_generic_gate(unsigned gate)
-{
-	/*
-	 * FIXME: the second gate sources for the m series are undocumented,
-	 * so we just return the raw bits for now.
-	 */
-	switch (gate) {
-	default:
-		return gate;
-	}
-	return 0;
-};
-
-static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned gate_index,
-			       unsigned int *gate_source)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned mode = ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx));
-	unsigned gate2_reg = NITIO_GATE2_REG(cidx);
-	unsigned gate;
-
-	switch (gate_index) {
-	case 0:
-		if ((mode & GI_GATING_MODE_MASK) == GI_GATING_DISABLED) {
-			*gate_source = NI_GPCT_DISABLED_GATE_SELECT;
-			return 0;
-		}
-
-		gate = GI_BITS_TO_GATE(ni_tio_get_soft_copy(counter,
-						NITIO_INPUT_SEL_REG(cidx)));
-
-		switch (counter_dev->variant) {
-		case ni_gpct_variant_e_series:
-		case ni_gpct_variant_m_series:
-		default:
-			*gate_source = ni_m_gate_to_generic_gate(gate);
-			break;
-		case ni_gpct_variant_660x:
-			*gate_source = ni_660x_gate_to_generic_gate(gate);
-			break;
-		}
-		if (mode & GI_GATE_POL_INVERT)
-			*gate_source |= CR_INVERT;
-		if ((mode & GI_GATING_MODE_MASK) != GI_LEVEL_GATING)
-			*gate_source |= CR_EDGE;
-		break;
-	case 1:
-		if ((mode & GI_GATING_MODE_MASK) == GI_GATING_DISABLED ||
-		    !(counter_dev->regs[gate2_reg] & GI_GATE2_MODE)) {
-			*gate_source = NI_GPCT_DISABLED_GATE_SELECT;
-			return 0;
-		}
-
-		gate = GI_BITS_TO_GATE2(counter_dev->regs[gate2_reg]);
-
-		switch (counter_dev->variant) {
-		case ni_gpct_variant_e_series:
-		case ni_gpct_variant_m_series:
-		default:
-			*gate_source = ni_m_gate2_to_generic_gate(gate);
-			break;
-		case ni_gpct_variant_660x:
-			*gate_source = ni_660x_gate2_to_generic_gate(gate);
-			break;
-		}
-		if (counter_dev->regs[gate2_reg] & GI_GATE2_POL_INVERT)
-			*gate_source |= CR_INVERT;
-		/* second gate can't have edge/level mode set independently */
-		if ((mode & GI_GATING_MODE_MASK) != GI_LEVEL_GATING)
-			*gate_source |= CR_EDGE;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-int ni_tio_insn_config(struct comedi_device *dev,
-		       struct comedi_subdevice *s,
-		       struct comedi_insn *insn,
-		       unsigned int *data)
-{
-	struct ni_gpct *counter = s->private;
-	unsigned cidx = counter->counter_index;
-	unsigned status;
-
-	switch (data[0]) {
-	case INSN_CONFIG_SET_COUNTER_MODE:
-		return ni_tio_set_counter_mode(counter, data[1]);
-	case INSN_CONFIG_ARM:
-		return ni_tio_arm(counter, 1, data[1]);
-	case INSN_CONFIG_DISARM:
-		ni_tio_arm(counter, 0, 0);
-		return 0;
-	case INSN_CONFIG_GET_COUNTER_STATUS:
-		data[1] = 0;
-		status = read_register(counter, NITIO_SHARED_STATUS_REG(cidx));
-		if (status & GI_ARMED(cidx)) {
-			data[1] |= COMEDI_COUNTER_ARMED;
-			if (status & GI_COUNTING(cidx))
-				data[1] |= COMEDI_COUNTER_COUNTING;
-		}
-		data[2] = COMEDI_COUNTER_ARMED | COMEDI_COUNTER_COUNTING;
-		return 0;
-	case INSN_CONFIG_SET_CLOCK_SRC:
-		return ni_tio_set_clock_src(counter, data[1], data[2]);
-	case INSN_CONFIG_GET_CLOCK_SRC:
-		ni_tio_get_clock_src(counter, &data[1], &data[2]);
-		return 0;
-	case INSN_CONFIG_SET_GATE_SRC:
-		return ni_tio_set_gate_src(counter, data[1], data[2]);
-	case INSN_CONFIG_GET_GATE_SRC:
-		return ni_tio_get_gate_src(counter, data[1], &data[2]);
-	case INSN_CONFIG_SET_OTHER_SRC:
-		return ni_tio_set_other_src(counter, data[1], data[2]);
-	case INSN_CONFIG_RESET:
-		ni_tio_reset_count_and_disarm(counter);
-		return 0;
-	default:
-		break;
-	}
-	return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(ni_tio_insn_config);
-
-static unsigned int ni_tio_read_sw_save_reg(struct comedi_device *dev,
-					    struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-	unsigned cidx = counter->counter_index;
-	unsigned int val;
-
-	ni_tio_set_bits(counter, NITIO_CMD_REG(cidx), GI_SAVE_TRACE, 0);
-	ni_tio_set_bits(counter, NITIO_CMD_REG(cidx),
-			GI_SAVE_TRACE, GI_SAVE_TRACE);
-
-	/*
-	 * The count doesn't get latched until the next clock edge, so it is
-	 * possible the count may change (once) while we are reading. Since
-	 * the read of the SW_Save_Reg isn't atomic (apparently even when it's
-	 * a 32 bit register according to 660x docs), we need to read twice
-	 * and make sure the reading hasn't changed. If it has, a third read
-	 * will be correct since the count value will definitely have latched
-	 * by then.
-	 */
-	val = read_register(counter, NITIO_SW_SAVE_REG(cidx));
-	if (val != read_register(counter, NITIO_SW_SAVE_REG(cidx)))
-		val = read_register(counter, NITIO_SW_SAVE_REG(cidx));
-
-	return val;
-}
-
-int ni_tio_insn_read(struct comedi_device *dev,
-		     struct comedi_subdevice *s,
-		     struct comedi_insn *insn,
-		     unsigned int *data)
-{
-	struct ni_gpct *counter = s->private;
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned int channel = CR_CHAN(insn->chanspec);
-	unsigned cidx = counter->counter_index;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		switch (channel) {
-		case 0:
-			data[i] = ni_tio_read_sw_save_reg(dev, s);
-			break;
-		case 1:
-			data[i] = counter_dev->regs[NITIO_LOADA_REG(cidx)];
-			break;
-		case 2:
-			data[i] = counter_dev->regs[NITIO_LOADB_REG(cidx)];
-			break;
-		}
-	}
-	return insn->n;
-}
-EXPORT_SYMBOL_GPL(ni_tio_insn_read);
-
-static unsigned ni_tio_next_load_register(struct ni_gpct *counter)
-{
-	unsigned cidx = counter->counter_index;
-	const unsigned bits =
-		read_register(counter, NITIO_SHARED_STATUS_REG(cidx));
-
-	return (bits & GI_NEXT_LOAD_SRC(cidx))
-			? NITIO_LOADB_REG(cidx)
-			: NITIO_LOADA_REG(cidx);
-}
-
-int ni_tio_insn_write(struct comedi_device *dev,
-		      struct comedi_subdevice *s,
-		      struct comedi_insn *insn,
-		      unsigned int *data)
-{
-	struct ni_gpct *counter = s->private;
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	const unsigned channel = CR_CHAN(insn->chanspec);
-	unsigned cidx = counter->counter_index;
-	unsigned load_reg;
-
-	if (insn->n < 1)
-		return 0;
-	switch (channel) {
-	case 0:
-		/*
-		 * Unsafe if counter is armed.
-		 * Should probably check status and return -EBUSY if armed.
-		 */
-
-		/*
-		 * Don't disturb load source select, just use whichever
-		 * load register is already selected.
-		 */
-		load_reg = ni_tio_next_load_register(counter);
-		write_register(counter, data[0], load_reg);
-		ni_tio_set_bits_transient(counter, NITIO_CMD_REG(cidx),
-					  0, 0, GI_LOAD);
-		/* restore load reg */
-		write_register(counter, counter_dev->regs[load_reg], load_reg);
-		break;
-	case 1:
-		counter_dev->regs[NITIO_LOADA_REG(cidx)] = data[0];
-		write_register(counter, data[0], NITIO_LOADA_REG(cidx));
-		break;
-	case 2:
-		counter_dev->regs[NITIO_LOADB_REG(cidx)] = data[0];
-		write_register(counter, data[0], NITIO_LOADB_REG(cidx));
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(ni_tio_insn_write);
-
-void ni_tio_init_counter(struct ni_gpct *counter)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-
-	ni_tio_reset_count_and_disarm(counter);
-
-	/* initialize counter registers */
-	counter_dev->regs[NITIO_AUTO_INC_REG(cidx)] = 0x0;
-	write_register(counter, 0x0, NITIO_AUTO_INC_REG(cidx));
-
-	ni_tio_set_bits(counter, NITIO_CMD_REG(cidx),
-			~0, GI_SYNC_GATE);
-
-	ni_tio_set_bits(counter, NITIO_MODE_REG(cidx), ~0, 0);
-
-	counter_dev->regs[NITIO_LOADA_REG(cidx)] = 0x0;
-	write_register(counter, 0x0, NITIO_LOADA_REG(cidx));
-
-	counter_dev->regs[NITIO_LOADB_REG(cidx)] = 0x0;
-	write_register(counter, 0x0, NITIO_LOADB_REG(cidx));
-
-	ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx), ~0, 0);
-
-	if (ni_tio_counting_mode_registers_present(counter_dev))
-		ni_tio_set_bits(counter, NITIO_CNT_MODE_REG(cidx), ~0, 0);
-
-	if (ni_tio_has_gate2_registers(counter_dev)) {
-		counter_dev->regs[NITIO_GATE2_REG(cidx)] = 0x0;
-		write_register(counter, 0x0, NITIO_GATE2_REG(cidx));
-	}
-
-	ni_tio_set_bits(counter, NITIO_DMA_CFG_REG(cidx), ~0, 0x0);
-
-	ni_tio_set_bits(counter, NITIO_INT_ENA_REG(cidx), ~0, 0x0);
-}
-EXPORT_SYMBOL_GPL(ni_tio_init_counter);
-
-struct ni_gpct_device *
-ni_gpct_device_construct(struct comedi_device *dev,
-			 void (*write_register)(struct ni_gpct *counter,
-						unsigned bits,
-						enum ni_gpct_register reg),
-			 unsigned (*read_register)(struct ni_gpct *counter,
-						   enum ni_gpct_register reg),
-			 enum ni_gpct_variant variant,
-			 unsigned num_counters)
-{
-	struct ni_gpct_device *counter_dev;
-	struct ni_gpct *counter;
-	unsigned i;
-
-	if (num_counters == 0)
-		return NULL;
-
-	counter_dev = kzalloc(sizeof(*counter_dev), GFP_KERNEL);
-	if (!counter_dev)
-		return NULL;
-
-	counter_dev->dev = dev;
-	counter_dev->write_register = write_register;
-	counter_dev->read_register = read_register;
-	counter_dev->variant = variant;
-
-	spin_lock_init(&counter_dev->regs_lock);
-
-	counter_dev->counters = kcalloc(num_counters, sizeof(*counter),
-					GFP_KERNEL);
-	if (!counter_dev->counters) {
-		kfree(counter_dev);
-		return NULL;
-	}
-
-	for (i = 0; i < num_counters; ++i) {
-		counter = &counter_dev->counters[i];
-		counter->counter_dev = counter_dev;
-		spin_lock_init(&counter->lock);
-	}
-	counter_dev->num_counters = num_counters;
-
-	return counter_dev;
-}
-EXPORT_SYMBOL_GPL(ni_gpct_device_construct);
-
-void ni_gpct_device_destroy(struct ni_gpct_device *counter_dev)
-{
-	if (!counter_dev->counters)
-		return;
-	kfree(counter_dev->counters);
-	kfree(counter_dev);
-}
-EXPORT_SYMBOL_GPL(ni_gpct_device_destroy);
-
-static int __init ni_tio_init_module(void)
-{
-	return 0;
-}
-module_init(ni_tio_init_module);
-
-static void __exit ni_tio_cleanup_module(void)
-{
-}
-module_exit(ni_tio_cleanup_module);
-
-MODULE_AUTHOR("Comedi <comedi@comedi.org>");
-MODULE_DESCRIPTION("Comedi support for NI general-purpose counters");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h
deleted file mode 100644
index 25aedd0e5867..000000000000
--- a/drivers/staging/comedi/drivers/ni_tio.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
-    drivers/ni_tio.h
-    Header file for NI general purpose counter support code (ni_tio.c)
-
-    COMEDI - Linux Control and Measurement Device Interface
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#ifndef _COMEDI_NI_TIO_H
-#define _COMEDI_NI_TIO_H
-
-#include "../comedidev.h"
-
-/* forward declarations */
-struct mite_struct;
-struct ni_gpct_device;
-
-enum ni_gpct_register {
-	NITIO_G0_AUTO_INC,
-	NITIO_G1_AUTO_INC,
-	NITIO_G2_AUTO_INC,
-	NITIO_G3_AUTO_INC,
-	NITIO_G0_CMD,
-	NITIO_G1_CMD,
-	NITIO_G2_CMD,
-	NITIO_G3_CMD,
-	NITIO_G0_HW_SAVE,
-	NITIO_G1_HW_SAVE,
-	NITIO_G2_HW_SAVE,
-	NITIO_G3_HW_SAVE,
-	NITIO_G0_SW_SAVE,
-	NITIO_G1_SW_SAVE,
-	NITIO_G2_SW_SAVE,
-	NITIO_G3_SW_SAVE,
-	NITIO_G0_MODE,
-	NITIO_G1_MODE,
-	NITIO_G2_MODE,
-	NITIO_G3_MODE,
-	NITIO_G0_LOADA,
-	NITIO_G1_LOADA,
-	NITIO_G2_LOADA,
-	NITIO_G3_LOADA,
-	NITIO_G0_LOADB,
-	NITIO_G1_LOADB,
-	NITIO_G2_LOADB,
-	NITIO_G3_LOADB,
-	NITIO_G0_INPUT_SEL,
-	NITIO_G1_INPUT_SEL,
-	NITIO_G2_INPUT_SEL,
-	NITIO_G3_INPUT_SEL,
-	NITIO_G0_CNT_MODE,
-	NITIO_G1_CNT_MODE,
-	NITIO_G2_CNT_MODE,
-	NITIO_G3_CNT_MODE,
-	NITIO_G0_GATE2,
-	NITIO_G1_GATE2,
-	NITIO_G2_GATE2,
-	NITIO_G3_GATE2,
-	NITIO_G01_STATUS,
-	NITIO_G23_STATUS,
-	NITIO_G01_RESET,
-	NITIO_G23_RESET,
-	NITIO_G01_STATUS1,
-	NITIO_G23_STATUS1,
-	NITIO_G01_STATUS2,
-	NITIO_G23_STATUS2,
-	NITIO_G0_DMA_CFG,
-	NITIO_G1_DMA_CFG,
-	NITIO_G2_DMA_CFG,
-	NITIO_G3_DMA_CFG,
-	NITIO_G0_DMA_STATUS,
-	NITIO_G1_DMA_STATUS,
-	NITIO_G2_DMA_STATUS,
-	NITIO_G3_DMA_STATUS,
-	NITIO_G0_ABZ,
-	NITIO_G1_ABZ,
-	NITIO_G0_INT_ACK,
-	NITIO_G1_INT_ACK,
-	NITIO_G2_INT_ACK,
-	NITIO_G3_INT_ACK,
-	NITIO_G0_STATUS,
-	NITIO_G1_STATUS,
-	NITIO_G2_STATUS,
-	NITIO_G3_STATUS,
-	NITIO_G0_INT_ENA,
-	NITIO_G1_INT_ENA,
-	NITIO_G2_INT_ENA,
-	NITIO_G3_INT_ENA,
-	NITIO_NUM_REGS,
-};
-
-enum ni_gpct_variant {
-	ni_gpct_variant_e_series,
-	ni_gpct_variant_m_series,
-	ni_gpct_variant_660x
-};
-
-struct ni_gpct {
-	struct ni_gpct_device *counter_dev;
-	unsigned counter_index;
-	unsigned chip_index;
-	uint64_t clock_period_ps;	/* clock period in picoseconds */
-	struct mite_channel *mite_chan;
-	spinlock_t lock;
-};
-
-struct ni_gpct_device {
-	struct comedi_device *dev;
-	void (*write_register)(struct ni_gpct *counter, unsigned bits,
-			       enum ni_gpct_register reg);
-	unsigned (*read_register)(struct ni_gpct *counter,
-				  enum ni_gpct_register reg);
-	enum ni_gpct_variant variant;
-	struct ni_gpct *counters;
-	unsigned num_counters;
-	unsigned regs[NITIO_NUM_REGS];
-	spinlock_t regs_lock;
-};
-
-struct ni_gpct_device *
-ni_gpct_device_construct(struct comedi_device *,
-			 void (*write_register)(struct ni_gpct *,
-						unsigned bits,
-						enum ni_gpct_register),
-			 unsigned (*read_register)(struct ni_gpct *,
-						   enum ni_gpct_register),
-			 enum ni_gpct_variant,
-			 unsigned num_counters);
-void ni_gpct_device_destroy(struct ni_gpct_device *);
-void ni_tio_init_counter(struct ni_gpct *);
-int ni_tio_insn_read(struct comedi_device *, struct comedi_subdevice *,
-		     struct comedi_insn *, unsigned int *data);
-int ni_tio_insn_config(struct comedi_device *, struct comedi_subdevice *,
-		       struct comedi_insn *, unsigned int *data);
-int ni_tio_insn_write(struct comedi_device *, struct comedi_subdevice *,
-		      struct comedi_insn *, unsigned int *data);
-int ni_tio_cmd(struct comedi_device *, struct comedi_subdevice *);
-int ni_tio_cmdtest(struct comedi_device *, struct comedi_subdevice *,
-		   struct comedi_cmd *);
-int ni_tio_cancel(struct ni_gpct *);
-void ni_tio_handle_interrupt(struct ni_gpct *, struct comedi_subdevice *);
-void ni_tio_set_mite_channel(struct ni_gpct *, struct mite_channel *);
-void ni_tio_acknowledge(struct ni_gpct *);
-
-#endif /* _COMEDI_NI_TIO_H */
diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h
deleted file mode 100644
index 2bceae493e23..000000000000
--- a/drivers/staging/comedi/drivers/ni_tio_internal.h
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
-    drivers/ni_tio_internal.h
-    Header file for NI general purpose counter support code (ni_tio.c and
-    ni_tiocmd.c)
-
-    COMEDI - Linux Control and Measurement Device Interface
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#ifndef _COMEDI_NI_TIO_INTERNAL_H
-#define _COMEDI_NI_TIO_INTERNAL_H
-
-#include "ni_tio.h"
-
-#define NITIO_AUTO_INC_REG(x)		(NITIO_G0_AUTO_INC + (x))
-#define GI_AUTO_INC_MASK		0xff
-#define NITIO_CMD_REG(x)		(NITIO_G0_CMD + (x))
-#define GI_ARM				(1 << 0)
-#define GI_SAVE_TRACE			(1 << 1)
-#define GI_LOAD				(1 << 2)
-#define GI_DISARM			(1 << 4)
-#define GI_CNT_DIR(x)			(((x) & 0x3) << 5)
-#define GI_CNT_DIR_MASK			(3 << 5)
-#define GI_WRITE_SWITCH			(1 << 7)
-#define GI_SYNC_GATE			(1 << 8)
-#define GI_LITTLE_BIG_ENDIAN		(1 << 9)
-#define GI_BANK_SWITCH_START		(1 << 10)
-#define GI_BANK_SWITCH_MODE		(1 << 11)
-#define GI_BANK_SWITCH_ENABLE		(1 << 12)
-#define GI_ARM_COPY			(1 << 13)
-#define GI_SAVE_TRACE_COPY		(1 << 14)
-#define GI_DISARM_COPY			(1 << 15)
-#define NITIO_HW_SAVE_REG(x)		(NITIO_G0_HW_SAVE + (x))
-#define NITIO_SW_SAVE_REG(x)		(NITIO_G0_SW_SAVE + (x))
-#define NITIO_MODE_REG(x)		(NITIO_G0_MODE + (x))
-#define GI_GATING_DISABLED		(0 << 0)
-#define GI_LEVEL_GATING			(1 << 0)
-#define GI_RISING_EDGE_GATING		(2 << 0)
-#define GI_FALLING_EDGE_GATING		(3 << 0)
-#define GI_GATING_MODE_MASK		(3 << 0)
-#define GI_GATE_ON_BOTH_EDGES		(1 << 2)
-#define GI_EDGE_GATE_STARTS_STOPS	(0 << 3)
-#define GI_EDGE_GATE_STOPS_STARTS	(1 << 3)
-#define GI_EDGE_GATE_STARTS		(2 << 3)
-#define GI_EDGE_GATE_NO_STARTS_OR_STOPS	(3 << 3)
-#define GI_EDGE_GATE_MODE_MASK		(3 << 3)
-#define GI_STOP_ON_GATE			(0 << 5)
-#define GI_STOP_ON_GATE_OR_TC		(1 << 5)
-#define GI_STOP_ON_GATE_OR_SECOND_TC	(2 << 5)
-#define GI_STOP_MODE_MASK		(3 << 5)
-#define GI_LOAD_SRC_SEL			(1 << 7)
-#define GI_OUTPUT_TC_PULSE		(1 << 8)
-#define GI_OUTPUT_TC_TOGGLE		(2 << 8)
-#define GI_OUTPUT_TC_OR_GATE_TOGGLE	(3 << 8)
-#define GI_OUTPUT_MODE_MASK		(3 << 8)
-#define GI_NO_HARDWARE_DISARM		(0 << 10)
-#define GI_DISARM_AT_TC			(1 << 10)
-#define GI_DISARM_AT_GATE		(2 << 10)
-#define GI_DISARM_AT_TC_OR_GATE		(3 << 10)
-#define GI_COUNTING_ONCE_MASK		(3 << 10)
-#define GI_LOADING_ON_TC		(1 << 12)
-#define GI_GATE_POL_INVERT		(1 << 13)
-#define GI_LOADING_ON_GATE		(1 << 14)
-#define GI_RELOAD_SRC_SWITCHING		(1 << 15)
-#define NITIO_LOADA_REG(x)		(NITIO_G0_LOADA + (x))
-#define NITIO_LOADB_REG(x)		(NITIO_G0_LOADB + (x))
-#define NITIO_INPUT_SEL_REG(x)		(NITIO_G0_INPUT_SEL + (x))
-#define GI_READ_ACKS_IRQ		(1 << 0)
-#define GI_WRITE_ACKS_IRQ		(1 << 1)
-#define GI_BITS_TO_SRC(x)		(((x) >> 2) & 0x1f)
-#define GI_SRC_SEL(x)			(((x) & 0x1f) << 2)
-#define GI_SRC_SEL_MASK			(0x1f << 2)
-#define GI_BITS_TO_GATE(x)		(((x) >> 7) & 0x1f)
-#define GI_GATE_SEL(x)			(((x) & 0x1f) << 7)
-#define GI_GATE_SEL_MASK		(0x1f << 7)
-#define GI_GATE_SEL_LOAD_SRC		(1 << 12)
-#define GI_OR_GATE			(1 << 13)
-#define GI_OUTPUT_POL_INVERT		(1 << 14)
-#define GI_SRC_POL_INVERT		(1 << 15)
-#define NITIO_CNT_MODE_REG(x)		(NITIO_G0_CNT_MODE + (x))
-#define GI_CNT_MODE(x)			(((x) & 0x7) << 0)
-#define GI_CNT_MODE_NORMAL		GI_CNT_MODE(0)
-#define GI_CNT_MODE_QUADX1		GI_CNT_MODE(1)
-#define GI_CNT_MODE_QUADX2		GI_CNT_MODE(2)
-#define GI_CNT_MODE_QUADX4		GI_CNT_MODE(3)
-#define GI_CNT_MODE_TWO_PULSE		GI_CNT_MODE(4)
-#define GI_CNT_MODE_SYNC_SRC		GI_CNT_MODE(6)
-#define GI_CNT_MODE_MASK		(7 << 0)
-#define GI_INDEX_MODE			(1 << 4)
-#define GI_INDEX_PHASE(x)		(((x) & 0x3) << 5)
-#define GI_INDEX_PHASE_MASK		(3 << 5)
-#define GI_HW_ARM_ENA			(1 << 7)
-#define GI_HW_ARM_SEL(x)		((x) << 8)
-#define GI_660X_HW_ARM_SEL_MASK		(0x7 << 8)
-#define GI_M_HW_ARM_SEL_MASK		(0x1f << 8)
-#define GI_660X_PRESCALE_X8		(1 << 12)
-#define GI_M_PRESCALE_X8		(1 << 13)
-#define GI_660X_ALT_SYNC		(1 << 13)
-#define GI_M_ALT_SYNC			(1 << 14)
-#define GI_660X_PRESCALE_X2		(1 << 14)
-#define GI_M_PRESCALE_X2		(1 << 15)
-#define NITIO_GATE2_REG(x)		(NITIO_G0_GATE2 + (x))
-#define GI_GATE2_MODE			(1 << 0)
-#define GI_BITS_TO_GATE2(x)		(((x) >> 7) & 0x1f)
-#define GI_GATE2_SEL(x)			(((x) & 0x1f) << 7)
-#define GI_GATE2_SEL_MASK		(0x1f << 7)
-#define GI_GATE2_POL_INVERT		(1 << 13)
-#define GI_GATE2_SUBSEL			(1 << 14)
-#define GI_SRC_SUBSEL			(1 << 15)
-#define NITIO_SHARED_STATUS_REG(x)	(NITIO_G01_STATUS + ((x) / 2))
-#define GI_SAVE(x)			(((x) % 2) ? (1 << 1) : (1 << 0))
-#define GI_COUNTING(x)			(((x) % 2) ? (1 << 3) : (1 << 2))
-#define GI_NEXT_LOAD_SRC(x)		(((x) % 2) ? (1 << 5) : (1 << 4))
-#define GI_STALE_DATA(x)		(((x) % 2) ? (1 << 7) : (1 << 6))
-#define GI_ARMED(x)			(((x) % 2) ? (1 << 9) : (1 << 8))
-#define GI_NO_LOAD_BETWEEN_GATES(x)	(((x) % 2) ? (1 << 11) : (1 << 10))
-#define GI_TC_ERROR(x)			(((x) % 2) ? (1 << 13) : (1 << 12))
-#define GI_GATE_ERROR(x)		(((x) % 2) ? (1 << 15) : (1 << 14))
-#define NITIO_RESET_REG(x)		(NITIO_G01_RESET + ((x) / 2))
-#define GI_RESET(x)			(1 << (2 + ((x) % 2)))
-#define NITIO_STATUS1_REG(x)		(NITIO_G01_STATUS1 + ((x) / 2))
-#define NITIO_STATUS2_REG(x)		(NITIO_G01_STATUS2 + ((x) / 2))
-#define GI_OUTPUT(x)			(((x) % 2) ? (1 << 1) : (1 << 0))
-#define GI_HW_SAVE(x)			(((x) % 2) ? (1 << 13) : (1 << 12))
-#define GI_PERMANENT_STALE(x)		(((x) % 2) ? (1 << 15) : (1 << 14))
-#define NITIO_DMA_CFG_REG(x)		(NITIO_G0_DMA_CFG + (x))
-#define GI_DMA_ENABLE			(1 << 0)
-#define GI_DMA_WRITE			(1 << 1)
-#define GI_DMA_INT_ENA			(1 << 2)
-#define GI_DMA_RESET			(1 << 3)
-#define GI_DMA_BANKSW_ERROR		(1 << 4)
-#define NITIO_DMA_STATUS_REG(x)		(NITIO_G0_DMA_STATUS + (x))
-#define GI_DMA_READBANK			(1 << 13)
-#define GI_DRQ_ERROR			(1 << 14)
-#define GI_DRQ_STATUS			(1 << 15)
-#define NITIO_ABZ_REG(x)		(NITIO_G0_ABZ + (x))
-#define NITIO_INT_ACK_REG(x)		(NITIO_G0_INT_ACK + (x))
-#define GI_GATE_ERROR_CONFIRM(x)	(((x) % 2) ? (1 << 1) : (1 << 5))
-#define GI_TC_ERROR_CONFIRM(x)		(((x) % 2) ? (1 << 2) : (1 << 6))
-#define GI_TC_INTERRUPT_ACK		(1 << 14)
-#define GI_GATE_INTERRUPT_ACK		(1 << 15)
-#define NITIO_STATUS_REG(x)		(NITIO_G0_STATUS + (x))
-#define GI_GATE_INTERRUPT		(1 << 2)
-#define GI_TC				(1 << 3)
-#define GI_INTERRUPT			(1 << 15)
-#define NITIO_INT_ENA_REG(x)		(NITIO_G0_INT_ENA + (x))
-#define GI_TC_INTERRUPT_ENABLE(x)	(((x) % 2) ? (1 << 9) : (1 << 6))
-#define GI_GATE_INTERRUPT_ENABLE(x)	(((x) % 2) ? (1 << 10) : (1 << 8))
-
-static inline void write_register(struct ni_gpct *counter, unsigned bits,
-				  enum ni_gpct_register reg)
-{
-	BUG_ON(reg >= NITIO_NUM_REGS);
-	counter->counter_dev->write_register(counter, bits, reg);
-}
-
-static inline unsigned read_register(struct ni_gpct *counter,
-				     enum ni_gpct_register reg)
-{
-	BUG_ON(reg >= NITIO_NUM_REGS);
-	return counter->counter_dev->read_register(counter, reg);
-}
-
-static inline int ni_tio_counting_mode_registers_present(const struct
-							 ni_gpct_device
-							 *counter_dev)
-{
-	switch (counter_dev->variant) {
-	case ni_gpct_variant_e_series:
-		return 0;
-	case ni_gpct_variant_m_series:
-	case ni_gpct_variant_660x:
-		return 1;
-	default:
-		BUG();
-		break;
-	}
-	return 0;
-}
-
-static inline void ni_tio_set_bits_transient(struct ni_gpct *counter,
-					     enum ni_gpct_register
-					     register_index, unsigned bit_mask,
-					     unsigned bit_values,
-					     unsigned transient_bit_values)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned long flags;
-
-	BUG_ON(register_index >= NITIO_NUM_REGS);
-	spin_lock_irqsave(&counter_dev->regs_lock, flags);
-	counter_dev->regs[register_index] &= ~bit_mask;
-	counter_dev->regs[register_index] |= (bit_values & bit_mask);
-	write_register(counter,
-		       counter_dev->regs[register_index] | transient_bit_values,
-		       register_index);
-	mmiowb();
-	spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
-}
-
-/* ni_tio_set_bits( ) is for safely writing to registers whose bits may be
- * twiddled in interrupt context, or whose software copy may be read in
- * interrupt context.
- */
-static inline void ni_tio_set_bits(struct ni_gpct *counter,
-				   enum ni_gpct_register register_index,
-				   unsigned bit_mask, unsigned bit_values)
-{
-	ni_tio_set_bits_transient(counter, register_index, bit_mask, bit_values,
-				  0x0);
-}
-
-/* ni_tio_get_soft_copy( ) is for safely reading the software copy of a register
-whose bits might be modified in interrupt context, or whose software copy
-might need to be read in interrupt context.
-*/
-static inline unsigned ni_tio_get_soft_copy(const struct ni_gpct *counter,
-					    enum ni_gpct_register
-					    register_index)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned long flags;
-	unsigned value;
-
-	BUG_ON(register_index >= NITIO_NUM_REGS);
-	spin_lock_irqsave(&counter_dev->regs_lock, flags);
-	value = counter_dev->regs[register_index];
-	spin_unlock_irqrestore(&counter_dev->regs_lock, flags);
-	return value;
-}
-
-int ni_tio_arm(struct ni_gpct *counter, int arm, unsigned start_trigger);
-int ni_tio_set_gate_src(struct ni_gpct *counter, unsigned gate_index,
-			unsigned int gate_source);
-
-#endif /* _COMEDI_NI_TIO_INTERNAL_H */
diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c
deleted file mode 100644
index 9b124b09e914..000000000000
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
-  comedi/drivers/ni_tiocmd.c
-  Command support for NI general purpose counters
-
-  Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net>
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-*/
-
-/*
- * Module: ni_tiocmd
- * Description: National Instruments general purpose counters command support
- * Author: J.P. Mellor <jpmellor@rose-hulman.edu>,
- *         Herman.Bruyninckx@mech.kuleuven.ac.be,
- *         Wim.Meeussen@mech.kuleuven.ac.be,
- *         Klaas.Gadeyne@mech.kuleuven.ac.be,
- *         Frank Mori Hess <fmhess@users.sourceforge.net>
- * Updated: Fri, 11 Apr 2008 12:32:35 +0100
- * Status: works
- *
- * This module is not used directly by end-users.  Rather, it
- * is used by other drivers (for example ni_660x and ni_pcimio)
- * to provide command support for NI's general purpose counters.
- * It was originally split out of ni_tio.c to stop the 'ni_tio'
- * module depending on the 'mite' module.
- *
- * References:
- * DAQ 660x Register-Level Programmer Manual  (NI 370505A-01)
- * DAQ 6601/6602 User Manual (NI 322137B-01)
- * 340934b.pdf  DAQ-STC reference manual
- */
-
-/*
-TODO:
-	Support use of both banks X and Y
-*/
-
-#include <linux/module.h>
-#include "ni_tio_internal.h"
-#include "mite.h"
-
-static void ni_tio_configure_dma(struct ni_gpct *counter,
-				 bool enable, bool read)
-{
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	unsigned mask;
-	unsigned bits;
-
-	mask = GI_READ_ACKS_IRQ | GI_WRITE_ACKS_IRQ;
-	bits = 0;
-
-	if (enable) {
-		if (read)
-			bits |= GI_READ_ACKS_IRQ;
-		else
-			bits |= GI_WRITE_ACKS_IRQ;
-	}
-	ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx), mask, bits);
-
-	switch (counter_dev->variant) {
-	case ni_gpct_variant_e_series:
-		break;
-	case ni_gpct_variant_m_series:
-	case ni_gpct_variant_660x:
-		mask = GI_DMA_ENABLE | GI_DMA_INT_ENA | GI_DMA_WRITE;
-		bits = 0;
-
-		if (enable)
-			bits |= GI_DMA_ENABLE | GI_DMA_INT_ENA;
-		if (!read)
-			bits |= GI_DMA_WRITE;
-		ni_tio_set_bits(counter, NITIO_DMA_CFG_REG(cidx), mask, bits);
-		break;
-	}
-}
-
-static int ni_tio_input_inttrig(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned int trig_num)
-{
-	struct ni_gpct *counter = s->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned long flags;
-	int ret = 0;
-
-	if (trig_num != cmd->start_src)
-		return -EINVAL;
-
-	spin_lock_irqsave(&counter->lock, flags);
-	if (counter->mite_chan)
-		mite_dma_arm(counter->mite_chan);
-	else
-		ret = -EIO;
-	spin_unlock_irqrestore(&counter->lock, flags);
-	if (ret < 0)
-		return ret;
-	ret = ni_tio_arm(counter, 1, NI_GPCT_ARM_IMMEDIATE);
-	s->async->inttrig = NULL;
-
-	return ret;
-}
-
-static int ni_tio_input_cmd(struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-	struct ni_gpct_device *counter_dev = counter->counter_dev;
-	unsigned cidx = counter->counter_index;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	int ret = 0;
-
-	/* write alloc the entire buffer */
-	comedi_buf_write_alloc(s, async->prealloc_bufsz);
-	counter->mite_chan->dir = COMEDI_INPUT;
-	switch (counter_dev->variant) {
-	case ni_gpct_variant_m_series:
-	case ni_gpct_variant_660x:
-		mite_prep_dma(counter->mite_chan, 32, 32);
-		break;
-	case ni_gpct_variant_e_series:
-		mite_prep_dma(counter->mite_chan, 16, 32);
-		break;
-	default:
-		BUG();
-		break;
-	}
-	ni_tio_set_bits(counter, NITIO_CMD_REG(cidx), GI_SAVE_TRACE, 0);
-	ni_tio_configure_dma(counter, true, true);
-
-	if (cmd->start_src == TRIG_INT) {
-		async->inttrig = &ni_tio_input_inttrig;
-	} else {	/* TRIG_NOW || TRIG_EXT || TRIG_OTHER */
-		async->inttrig = NULL;
-		mite_dma_arm(counter->mite_chan);
-
-		if (cmd->start_src == TRIG_NOW)
-			ret = ni_tio_arm(counter, 1, NI_GPCT_ARM_IMMEDIATE);
-		else if (cmd->start_src == TRIG_EXT)
-			ret = ni_tio_arm(counter, 1, cmd->start_arg);
-	}
-	return ret;
-}
-
-static int ni_tio_output_cmd(struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-
-	dev_err(counter->counter_dev->dev->class_dev,
-		"output commands not yet implemented.\n");
-	return -ENOTSUPP;
-
-	counter->mite_chan->dir = COMEDI_OUTPUT;
-	mite_prep_dma(counter->mite_chan, 32, 32);
-	ni_tio_configure_dma(counter, true, false);
-	mite_dma_arm(counter->mite_chan);
-	return ni_tio_arm(counter, 1, NI_GPCT_ARM_IMMEDIATE);
-}
-
-static int ni_tio_cmd_setup(struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	struct ni_gpct *counter = s->private;
-	unsigned cidx = counter->counter_index;
-	int set_gate_source = 0;
-	unsigned gate_source;
-	int retval = 0;
-
-	if (cmd->scan_begin_src == TRIG_EXT) {
-		set_gate_source = 1;
-		gate_source = cmd->scan_begin_arg;
-	} else if (cmd->convert_src == TRIG_EXT) {
-		set_gate_source = 1;
-		gate_source = cmd->convert_arg;
-	}
-	if (set_gate_source)
-		retval = ni_tio_set_gate_src(counter, 0, gate_source);
-	if (cmd->flags & CMDF_WAKE_EOS) {
-		ni_tio_set_bits(counter, NITIO_INT_ENA_REG(cidx),
-				GI_GATE_INTERRUPT_ENABLE(cidx),
-				GI_GATE_INTERRUPT_ENABLE(cidx));
-	}
-	return retval;
-}
-
-int ni_tio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct ni_gpct *counter = s->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	int retval = 0;
-	unsigned long flags;
-
-	spin_lock_irqsave(&counter->lock, flags);
-	if (!counter->mite_chan) {
-		dev_err(counter->counter_dev->dev->class_dev,
-			"commands only supported with DMA.  ");
-		dev_err(counter->counter_dev->dev->class_dev,
-			"Interrupt-driven commands not yet implemented.\n");
-		retval = -EIO;
-	} else {
-		retval = ni_tio_cmd_setup(s);
-		if (retval == 0) {
-			if (cmd->flags & CMDF_WRITE)
-				retval = ni_tio_output_cmd(s);
-			else
-				retval = ni_tio_input_cmd(s);
-		}
-	}
-	spin_unlock_irqrestore(&counter->lock, flags);
-	return retval;
-}
-EXPORT_SYMBOL_GPL(ni_tio_cmd);
-
-int ni_tio_cmdtest(struct comedi_device *dev,
-		   struct comedi_subdevice *s,
-		   struct comedi_cmd *cmd)
-{
-	struct ni_gpct *counter = s->private;
-	int err = 0;
-	unsigned int sources;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	sources = TRIG_NOW | TRIG_INT | TRIG_OTHER;
-	if (ni_tio_counting_mode_registers_present(counter->counter_dev))
-		sources |= TRIG_EXT;
-	err |= comedi_check_trigger_src(&cmd->start_src, sources);
-
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_FOLLOW | TRIG_EXT | TRIG_OTHER);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_NOW | TRIG_EXT | TRIG_OTHER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (cmd->convert_src != TRIG_NOW && cmd->scan_begin_src != TRIG_FOLLOW)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-	case TRIG_INT:
-	case TRIG_OTHER:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		/* start_arg is the start_trigger passed to ni_tio_arm() */
-		break;
-	}
-
-	if (cmd->scan_begin_src != TRIG_EXT)
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->convert_src != TRIG_EXT)
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(ni_tio_cmdtest);
-
-int ni_tio_cancel(struct ni_gpct *counter)
-{
-	unsigned cidx = counter->counter_index;
-	unsigned long flags;
-
-	ni_tio_arm(counter, 0, 0);
-	spin_lock_irqsave(&counter->lock, flags);
-	if (counter->mite_chan)
-		mite_dma_disarm(counter->mite_chan);
-	spin_unlock_irqrestore(&counter->lock, flags);
-	ni_tio_configure_dma(counter, false, false);
-
-	ni_tio_set_bits(counter, NITIO_INT_ENA_REG(cidx),
-			GI_GATE_INTERRUPT_ENABLE(cidx), 0x0);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(ni_tio_cancel);
-
-	/* During buffered input counter operation for e-series, the gate
-	   interrupt is acked automatically by the dma controller, due to the
-	   Gi_Read/Write_Acknowledges_IRQ bits in the input select register.  */
-static int should_ack_gate(struct ni_gpct *counter)
-{
-	unsigned long flags;
-	int retval = 0;
-
-	switch (counter->counter_dev->variant) {
-	case ni_gpct_variant_m_series:
-	/*  not sure if 660x really supports gate
-	    interrupts (the bits are not listed
-	    in register-level manual) */
-	case ni_gpct_variant_660x:
-		return 1;
-	case ni_gpct_variant_e_series:
-		spin_lock_irqsave(&counter->lock, flags);
-		{
-			if (!counter->mite_chan ||
-			    counter->mite_chan->dir != COMEDI_INPUT ||
-			    (mite_done(counter->mite_chan))) {
-				retval = 1;
-			}
-		}
-		spin_unlock_irqrestore(&counter->lock, flags);
-		break;
-	}
-	return retval;
-}
-
-static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter,
-					   int *gate_error,
-					   int *tc_error,
-					   int *perm_stale_data,
-					   int *stale_data)
-{
-	unsigned cidx = counter->counter_index;
-	const unsigned short gxx_status = read_register(counter,
-						NITIO_SHARED_STATUS_REG(cidx));
-	const unsigned short gi_status = read_register(counter,
-						NITIO_STATUS_REG(cidx));
-	unsigned ack = 0;
-
-	if (gate_error)
-		*gate_error = 0;
-	if (tc_error)
-		*tc_error = 0;
-	if (perm_stale_data)
-		*perm_stale_data = 0;
-	if (stale_data)
-		*stale_data = 0;
-
-	if (gxx_status & GI_GATE_ERROR(cidx)) {
-		ack |= GI_GATE_ERROR_CONFIRM(cidx);
-		if (gate_error) {
-			/*660x don't support automatic acknowledgment
-			  of gate interrupt via dma read/write
-			   and report bogus gate errors */
-			if (counter->counter_dev->variant !=
-			    ni_gpct_variant_660x)
-				*gate_error = 1;
-		}
-	}
-	if (gxx_status & GI_TC_ERROR(cidx)) {
-		ack |= GI_TC_ERROR_CONFIRM(cidx);
-		if (tc_error)
-			*tc_error = 1;
-	}
-	if (gi_status & GI_TC)
-		ack |= GI_TC_INTERRUPT_ACK;
-	if (gi_status & GI_GATE_INTERRUPT) {
-		if (should_ack_gate(counter))
-			ack |= GI_GATE_INTERRUPT_ACK;
-	}
-	if (ack)
-		write_register(counter, ack, NITIO_INT_ACK_REG(cidx));
-	if (ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)) &
-	    GI_LOADING_ON_GATE) {
-		if (gxx_status & GI_STALE_DATA(cidx)) {
-			if (stale_data)
-				*stale_data = 1;
-		}
-		if (read_register(counter, NITIO_STATUS2_REG(cidx)) &
-		    GI_PERMANENT_STALE(cidx)) {
-			dev_info(counter->counter_dev->dev->class_dev,
-				 "%s: Gi_Permanent_Stale_Data detected.\n",
-				 __func__);
-			if (perm_stale_data)
-				*perm_stale_data = 1;
-		}
-	}
-}
-
-void ni_tio_acknowledge(struct ni_gpct *counter)
-{
-	ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL, NULL);
-}
-EXPORT_SYMBOL_GPL(ni_tio_acknowledge);
-
-void ni_tio_handle_interrupt(struct ni_gpct *counter,
-			     struct comedi_subdevice *s)
-{
-	unsigned cidx = counter->counter_index;
-	unsigned gpct_mite_status;
-	unsigned long flags;
-	int gate_error;
-	int tc_error;
-	int perm_stale_data;
-
-	ni_tio_acknowledge_and_confirm(counter, &gate_error, &tc_error,
-				       &perm_stale_data, NULL);
-	if (gate_error) {
-		dev_notice(counter->counter_dev->dev->class_dev,
-			   "%s: Gi_Gate_Error detected.\n", __func__);
-		s->async->events |= COMEDI_CB_OVERFLOW;
-	}
-	if (perm_stale_data)
-		s->async->events |= COMEDI_CB_ERROR;
-	switch (counter->counter_dev->variant) {
-	case ni_gpct_variant_m_series:
-	case ni_gpct_variant_660x:
-		if (read_register(counter, NITIO_DMA_STATUS_REG(cidx)) &
-		    GI_DRQ_ERROR) {
-			dev_notice(counter->counter_dev->dev->class_dev,
-				   "%s: Gi_DRQ_Error detected.\n", __func__);
-			s->async->events |= COMEDI_CB_OVERFLOW;
-		}
-		break;
-	case ni_gpct_variant_e_series:
-		break;
-	}
-	spin_lock_irqsave(&counter->lock, flags);
-	if (!counter->mite_chan) {
-		spin_unlock_irqrestore(&counter->lock, flags);
-		return;
-	}
-	gpct_mite_status = mite_get_status(counter->mite_chan);
-	if (gpct_mite_status & CHSR_LINKC)
-		writel(CHOR_CLRLC,
-		       counter->mite_chan->mite->mite_io_addr +
-		       MITE_CHOR(counter->mite_chan->channel));
-	mite_sync_input_dma(counter->mite_chan, s);
-	spin_unlock_irqrestore(&counter->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ni_tio_handle_interrupt);
-
-void ni_tio_set_mite_channel(struct ni_gpct *counter,
-			     struct mite_channel *mite_chan)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&counter->lock, flags);
-	counter->mite_chan = mite_chan;
-	spin_unlock_irqrestore(&counter->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ni_tio_set_mite_channel);
-
-static int __init ni_tiocmd_init_module(void)
-{
-	return 0;
-}
-module_init(ni_tiocmd_init_module);
-
-static void __exit ni_tiocmd_cleanup_module(void)
-{
-}
-module_exit(ni_tiocmd_cleanup_module);
-
-MODULE_AUTHOR("Comedi <comedi@comedi.org>");
-MODULE_DESCRIPTION("Comedi command support for NI general-purpose counters");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c
deleted file mode 100644
index 88de8da3eff3..000000000000
--- a/drivers/staging/comedi/drivers/ni_usb6501.c
+++ /dev/null
@@ -1,615 +0,0 @@
-/*
- * comedi/drivers/ni_usb6501.c
- * Comedi driver for National Instruments USB-6501
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2014 Luca Ellero <luca.ellero@brickedbrain.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: ni_usb6501
- * Description: National Instruments USB-6501 module
- * Devices: [National Instruments] USB-6501 (ni_usb6501)
- * Author: Luca Ellero <luca.ellero@brickedbrain.com>
- * Updated: 8 Sep 2014
- * Status: works
- *
- *
- * Configuration Options:
- * none
- */
-
-/*
- * NI-6501 - USB PROTOCOL DESCRIPTION
- *
- * Every command is composed by two USB packets:
- *	- request (out)
- *	- response (in)
- *
- * Every packet is at least 12 bytes long, here is the meaning of
- * every field (all values are hex):
- *
- *	byte 0 is always 00
- *	byte 1 is always 01
- *	byte 2 is always 00
- *	byte 3 is the total packet length
- *
- *	byte 4 is always 00
- *	byte 5 is is the total packet length - 4
- *	byte 6 is always 01
- *	byte 7 is the command
- *
- *	byte 8 is 02 (request) or 00 (response)
- *	byte 9 is 00 (response) or 10 (port request) or 20 (counter request)
- *	byte 10 is always 00
- *	byte 11 is 00 (request) or 02 (response)
- *
- * PORT PACKETS
- *
- *	CMD: 0xE READ_PORT
- *	REQ: 00 01 00 10 00 0C 01 0E 02 10 00 00 00 03 <PORT> 00
- *	RES: 00 01 00 10 00 0C 01 00 00 00 00 02 00 03 <BMAP> 00
- *
- *	CMD: 0xF WRITE_PORT
- *	REQ: 00 01 00 14 00 10 01 0F 02 10 00 00 00 03 <PORT> 00 03 <BMAP> 00 00
- *	RES: 00 01 00 0C 00 08 01 00 00 00 00 02
- *
- *	CMD: 0x12 SET_PORT_DIR (0 = input, 1 = output)
- *	REQ: 00 01 00 18 00 14 01 12 02 10 00 00
- *	     00 05 <PORT 0> <PORT 1> <PORT 2> 00 05 00 00 00 00 00
- *	RES: 00 01 00 0C 00 08 01 00 00 00 00 02
- *
- * COUNTER PACKETS
- *
- *	CMD 0x9: START_COUNTER
- *	REQ: 00 01 00 0C 00 08 01 09 02 20 00 00
- *	RES: 00 01 00 0C 00 08 01 00 00 00 00 02
- *
- *	CMD 0xC: STOP_COUNTER
- *	REQ: 00 01 00 0C 00 08 01 0C 02 20 00 00
- *	RES: 00 01 00 0C 00 08 01 00 00 00 00 02
- *
- *	CMD 0xE: READ_COUNTER
- *	REQ: 00 01 00 0C 00 08 01 0E 02 20 00 00
- *	RES: 00 01 00 10 00 0C 01 00 00 00 00 02 <u32 counter value, Big Endian>
- *
- *	CMD 0xF: WRITE_COUNTER
- *	REQ: 00 01 00 10 00 0C 01 0F 02 20 00 00 <u32 counter value, Big Endian>
- *	RES: 00 01 00 0C 00 08 01 00 00 00 00 02
- *
- *
- *	Please  visit http://www.brickedbrain.com if you need
- *	additional information or have any questions.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include "../comedi_usb.h"
-
-#define	NI6501_TIMEOUT	1000
-
-/* Port request packets */
-static const u8 READ_PORT_REQUEST[]	= {0x00, 0x01, 0x00, 0x10,
-					   0x00, 0x0C, 0x01, 0x0E,
-					   0x02, 0x10, 0x00, 0x00,
-					   0x00, 0x03, 0x00, 0x00};
-
-static const u8 WRITE_PORT_REQUEST[]	= {0x00, 0x01, 0x00, 0x14,
-					   0x00, 0x10, 0x01, 0x0F,
-					   0x02, 0x10, 0x00, 0x00,
-					   0x00, 0x03, 0x00, 0x00,
-					   0x03, 0x00, 0x00, 0x00};
-
-static const u8 SET_PORT_DIR_REQUEST[]	= {0x00, 0x01, 0x00, 0x18,
-					   0x00, 0x14, 0x01, 0x12,
-					   0x02, 0x10, 0x00, 0x00,
-					   0x00, 0x05, 0x00, 0x00,
-					   0x00, 0x00, 0x05, 0x00,
-					   0x00, 0x00, 0x00, 0x00};
-
-/* Counter request packets */
-static const u8 START_COUNTER_REQUEST[]	= {0x00, 0x01, 0x00, 0x0C,
-					   0x00, 0x08, 0x01, 0x09,
-					   0x02, 0x20, 0x00, 0x00};
-
-static const u8 STOP_COUNTER_REQUEST[]	= {0x00, 0x01, 0x00, 0x0C,
-					   0x00, 0x08, 0x01, 0x0C,
-					   0x02, 0x20, 0x00, 0x00};
-
-static const u8 READ_COUNTER_REQUEST[]	= {0x00, 0x01, 0x00, 0x0C,
-					   0x00, 0x08, 0x01, 0x0E,
-					   0x02, 0x20, 0x00, 0x00};
-
-static const u8 WRITE_COUNTER_REQUEST[]	= {0x00, 0x01, 0x00, 0x10,
-					   0x00, 0x0C, 0x01, 0x0F,
-					   0x02, 0x20, 0x00, 0x00,
-					   0x00, 0x00, 0x00, 0x00};
-
-/* Response packets */
-static const u8 GENERIC_RESPONSE[]	= {0x00, 0x01, 0x00, 0x0C,
-					   0x00, 0x08, 0x01, 0x00,
-					   0x00, 0x00, 0x00, 0x02};
-
-static const u8 READ_PORT_RESPONSE[]	= {0x00, 0x01, 0x00, 0x10,
-					   0x00, 0x0C, 0x01, 0x00,
-					   0x00, 0x00, 0x00, 0x02,
-					   0x00, 0x03, 0x00, 0x00};
-
-static const u8 READ_COUNTER_RESPONSE[]	= {0x00, 0x01, 0x00, 0x10,
-					   0x00, 0x0C, 0x01, 0x00,
-					   0x00, 0x00, 0x00, 0x02,
-					   0x00, 0x00, 0x00, 0x00};
-
-enum commands {
-	READ_PORT,
-	WRITE_PORT,
-	SET_PORT_DIR,
-	START_COUNTER,
-	STOP_COUNTER,
-	READ_COUNTER,
-	WRITE_COUNTER
-};
-
-struct ni6501_private {
-	struct usb_endpoint_descriptor *ep_rx;
-	struct usb_endpoint_descriptor *ep_tx;
-	struct semaphore sem;
-	u8 *usb_rx_buf;
-	u8 *usb_tx_buf;
-};
-
-static int ni6501_port_command(struct comedi_device *dev, int command,
-			       unsigned int val, u8 *bitmap)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct ni6501_private *devpriv = dev->private;
-	int request_size, response_size;
-	u8 *tx = devpriv->usb_tx_buf;
-	int ret;
-
-	if (command != SET_PORT_DIR && !bitmap)
-		return -EINVAL;
-
-	down(&devpriv->sem);
-
-	switch (command) {
-	case READ_PORT:
-		request_size = sizeof(READ_PORT_REQUEST);
-		response_size = sizeof(READ_PORT_RESPONSE);
-		memcpy(tx, READ_PORT_REQUEST, request_size);
-		tx[14] = val & 0xff;
-		break;
-	case WRITE_PORT:
-		request_size = sizeof(WRITE_PORT_REQUEST);
-		response_size = sizeof(GENERIC_RESPONSE);
-		memcpy(tx, WRITE_PORT_REQUEST, request_size);
-		tx[14] = val & 0xff;
-		tx[17] = *bitmap;
-		break;
-	case SET_PORT_DIR:
-		request_size = sizeof(SET_PORT_DIR_REQUEST);
-		response_size = sizeof(GENERIC_RESPONSE);
-		memcpy(tx, SET_PORT_DIR_REQUEST, request_size);
-		tx[14] = val & 0xff;
-		tx[15] = (val >> 8) & 0xff;
-		tx[16] = (val >> 16) & 0xff;
-		break;
-	default:
-		ret = -EINVAL;
-		goto end;
-	}
-
-	ret = usb_bulk_msg(usb,
-			   usb_sndbulkpipe(usb,
-					   devpriv->ep_tx->bEndpointAddress),
-			   devpriv->usb_tx_buf,
-			   request_size,
-			   NULL,
-			   NI6501_TIMEOUT);
-	if (ret)
-		goto end;
-
-	ret = usb_bulk_msg(usb,
-			   usb_rcvbulkpipe(usb,
-					   devpriv->ep_rx->bEndpointAddress),
-			   devpriv->usb_rx_buf,
-			   response_size,
-			   NULL,
-			   NI6501_TIMEOUT);
-	if (ret)
-		goto end;
-
-	/* Check if results are valid */
-
-	if (command == READ_PORT) {
-		*bitmap = devpriv->usb_rx_buf[14];
-		/* mask bitmap for comparing */
-		devpriv->usb_rx_buf[14] = 0x00;
-
-		if (memcmp(devpriv->usb_rx_buf, READ_PORT_RESPONSE,
-			   sizeof(READ_PORT_RESPONSE))) {
-			ret = -EINVAL;
-		}
-	} else if (memcmp(devpriv->usb_rx_buf, GENERIC_RESPONSE,
-			  sizeof(GENERIC_RESPONSE))) {
-		ret = -EINVAL;
-	}
-end:
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int ni6501_counter_command(struct comedi_device *dev, int command,
-				  u32 *val)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct ni6501_private *devpriv = dev->private;
-	int request_size, response_size;
-	u8 *tx = devpriv->usb_tx_buf;
-	int ret;
-
-	if ((command == READ_COUNTER || command ==  WRITE_COUNTER) && !val)
-		return -EINVAL;
-
-	down(&devpriv->sem);
-
-	switch (command) {
-	case START_COUNTER:
-		request_size = sizeof(START_COUNTER_REQUEST);
-		response_size = sizeof(GENERIC_RESPONSE);
-		memcpy(tx, START_COUNTER_REQUEST, request_size);
-		break;
-	case STOP_COUNTER:
-		request_size = sizeof(STOP_COUNTER_REQUEST);
-		response_size = sizeof(GENERIC_RESPONSE);
-		memcpy(tx, STOP_COUNTER_REQUEST, request_size);
-		break;
-	case READ_COUNTER:
-		request_size = sizeof(READ_COUNTER_REQUEST);
-		response_size = sizeof(READ_COUNTER_RESPONSE);
-		memcpy(tx, READ_COUNTER_REQUEST, request_size);
-		break;
-	case WRITE_COUNTER:
-		request_size = sizeof(WRITE_COUNTER_REQUEST);
-		response_size = sizeof(GENERIC_RESPONSE);
-		memcpy(tx, WRITE_COUNTER_REQUEST, request_size);
-		/* Setup tx packet: bytes 12,13,14,15 hold the */
-		/* u32 counter value (Big Endian)	       */
-		*((__be32 *)&tx[12]) = cpu_to_be32(*val);
-		break;
-	default:
-		ret = -EINVAL;
-		goto end;
-	}
-
-	ret = usb_bulk_msg(usb,
-			   usb_sndbulkpipe(usb,
-					   devpriv->ep_tx->bEndpointAddress),
-			   devpriv->usb_tx_buf,
-			   request_size,
-			   NULL,
-			   NI6501_TIMEOUT);
-	if (ret)
-		goto end;
-
-	ret = usb_bulk_msg(usb,
-			   usb_rcvbulkpipe(usb,
-					   devpriv->ep_rx->bEndpointAddress),
-			   devpriv->usb_rx_buf,
-			   response_size,
-			   NULL,
-			   NI6501_TIMEOUT);
-	if (ret)
-		goto end;
-
-	/* Check if results are valid */
-
-	if (command == READ_COUNTER) {
-		int i;
-
-		/* Read counter value: bytes 12,13,14,15 of rx packet */
-		/* hold the u32 counter value (Big Endian)	      */
-		*val = be32_to_cpu(*((__be32 *)&devpriv->usb_rx_buf[12]));
-
-		/* mask counter value for comparing */
-		for (i = 12; i < sizeof(READ_COUNTER_RESPONSE); ++i)
-			devpriv->usb_rx_buf[i] = 0x00;
-
-		if (memcmp(devpriv->usb_rx_buf, READ_COUNTER_RESPONSE,
-			   sizeof(READ_COUNTER_RESPONSE))) {
-			ret = -EINVAL;
-		}
-	} else if (memcmp(devpriv->usb_rx_buf, GENERIC_RESPONSE,
-			  sizeof(GENERIC_RESPONSE))) {
-		ret = -EINVAL;
-	}
-end:
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int ni6501_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	ret = ni6501_port_command(dev, SET_PORT_DIR, s->io_bits, NULL);
-	if (ret)
-		return ret;
-
-	return insn->n;
-}
-
-static int ni6501_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int mask;
-	int ret;
-	u8 port;
-	u8 bitmap;
-
-	mask = comedi_dio_update_state(s, data);
-
-	for (port = 0; port < 3; port++) {
-		if (mask & (0xFF << port * 8)) {
-			bitmap = (s->state >> port * 8) & 0xFF;
-			ret = ni6501_port_command(dev, WRITE_PORT,
-						  port, &bitmap);
-			if (ret)
-				return ret;
-		}
-	}
-
-	data[1] = 0;
-
-	for (port = 0; port < 3; port++) {
-		ret = ni6501_port_command(dev, READ_PORT, port, &bitmap);
-		if (ret)
-			return ret;
-		data[1] |= bitmap << port * 8;
-	}
-
-	return insn->n;
-}
-
-static int ni6501_cnt_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	int ret;
-	u32 val = 0;
-
-	switch (data[0]) {
-	case INSN_CONFIG_ARM:
-		ret = ni6501_counter_command(dev, START_COUNTER, NULL);
-		break;
-	case INSN_CONFIG_DISARM:
-		ret = ni6501_counter_command(dev, STOP_COUNTER, NULL);
-		break;
-	case INSN_CONFIG_RESET:
-		ret = ni6501_counter_command(dev, STOP_COUNTER, NULL);
-		if (ret)
-			break;
-		ret = ni6501_counter_command(dev, WRITE_COUNTER, &val);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return ret ? ret : insn->n;
-}
-
-static int ni6501_cnt_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	int ret;
-	u32 val;
-	unsigned int i;
-
-	for (i = 0; i < insn->n; i++) {
-		ret = ni6501_counter_command(dev, READ_COUNTER,	&val);
-		if (ret)
-			return ret;
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int ni6501_cnt_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	int ret;
-
-	if (insn->n) {
-		u32 val = data[insn->n - 1];
-
-		ret = ni6501_counter_command(dev, WRITE_COUNTER, &val);
-		if (ret)
-			return ret;
-	}
-
-	return insn->n;
-}
-
-static int ni6501_alloc_usb_buffers(struct comedi_device *dev)
-{
-	struct ni6501_private *devpriv = dev->private;
-	size_t size;
-
-	size = le16_to_cpu(devpriv->ep_rx->wMaxPacketSize);
-	devpriv->usb_rx_buf = kzalloc(size, GFP_KERNEL);
-	if (!devpriv->usb_rx_buf)
-		return -ENOMEM;
-
-	size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
-	devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
-	if (!devpriv->usb_tx_buf) {
-		kfree(devpriv->usb_rx_buf);
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static int ni6501_find_endpoints(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct ni6501_private *devpriv = dev->private;
-	struct usb_host_interface *iface_desc = intf->cur_altsetting;
-	struct usb_endpoint_descriptor *ep_desc;
-	int i;
-
-	if (iface_desc->desc.bNumEndpoints != 2) {
-		dev_err(dev->class_dev, "Wrong number of endpoints\n");
-		return -ENODEV;
-	}
-
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
-		ep_desc = &iface_desc->endpoint[i].desc;
-
-		if (usb_endpoint_is_bulk_in(ep_desc)) {
-			if (!devpriv->ep_rx)
-				devpriv->ep_rx = ep_desc;
-			continue;
-		}
-
-		if (usb_endpoint_is_bulk_out(ep_desc)) {
-			if (!devpriv->ep_tx)
-				devpriv->ep_tx = ep_desc;
-			continue;
-		}
-	}
-
-	if (!devpriv->ep_rx || !devpriv->ep_tx)
-		return -ENODEV;
-
-	return 0;
-}
-
-static int ni6501_auto_attach(struct comedi_device *dev,
-			      unsigned long context)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct ni6501_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = ni6501_find_endpoints(dev);
-	if (ret)
-		return ret;
-
-	ret = ni6501_alloc_usb_buffers(dev);
-	if (ret)
-		return ret;
-
-	sema_init(&devpriv->sem, 1);
-	usb_set_intfdata(intf, devpriv);
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	/* Digital Input/Output subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 24;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= ni6501_dio_insn_bits;
-	s->insn_config	= ni6501_dio_insn_config;
-
-	/* Counter subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL;
-	s->n_chan	= 1;
-	s->maxdata	= 0xffffffff;
-	s->insn_read	= ni6501_cnt_insn_read;
-	s->insn_write	= ni6501_cnt_insn_write;
-	s->insn_config	= ni6501_cnt_insn_config;
-
-	return 0;
-}
-
-static void ni6501_detach(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct ni6501_private *devpriv = dev->private;
-
-	if (!devpriv)
-		return;
-
-	down(&devpriv->sem);
-
-	usb_set_intfdata(intf, NULL);
-
-	kfree(devpriv->usb_rx_buf);
-	kfree(devpriv->usb_tx_buf);
-
-	up(&devpriv->sem);
-}
-
-static struct comedi_driver ni6501_driver = {
-	.module		= THIS_MODULE,
-	.driver_name	= "ni6501",
-	.auto_attach	= ni6501_auto_attach,
-	.detach		= ni6501_detach,
-};
-
-static int ni6501_usb_probe(struct usb_interface *intf,
-			    const struct usb_device_id *id)
-{
-	return comedi_usb_auto_config(intf, &ni6501_driver, id->driver_info);
-}
-
-static const struct usb_device_id ni6501_usb_table[] = {
-	{ USB_DEVICE(0x3923, 0x718a) },
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, ni6501_usb_table);
-
-static struct usb_driver ni6501_usb_driver = {
-	.name		= "ni6501",
-	.id_table	= ni6501_usb_table,
-	.probe		= ni6501_usb_probe,
-	.disconnect	= comedi_usb_auto_unconfig,
-};
-module_comedi_usb_driver(ni6501_driver, ni6501_usb_driver);
-
-MODULE_AUTHOR("Luca Ellero");
-MODULE_DESCRIPTION("Comedi driver for National Instruments USB-6501");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
deleted file mode 100644
index cfc3a627d0ca..000000000000
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- * pcl711.c
- * Comedi driver for PC-LabCard PCL-711 and AdSys ACL-8112 and compatibles
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *		      Janne Jalkanen <jalkanen@cs.hut.fi>
- *		      Eric Bunn <ebu@cs.hut.fi>
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: pcl711
- * Description: Advantech PCL-711 and 711b, ADLink ACL-8112
- * Devices: [Advantech] PCL-711 (pcl711), PCL-711B (pcl711b),
- *   [ADLink] ACL-8112HG (acl8112hg), ACL-8112DG (acl8112dg)
- * Author: David A. Schleef <ds@schleef.org>
- *	   Janne Jalkanen <jalkanen@cs.hut.fi>
- *	   Eric Bunn <ebu@cs.hut.fi>
- * Updated:
- * Status: mostly complete
- *
- * Configuration Options:
- *   [0] - I/O port base
- *   [1] - IRQ, optional
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#include "comedi_8254.h"
-
-/*
- * I/O port register map
- */
-#define PCL711_TIMER_BASE	0x00
-#define PCL711_AI_LSB_REG	0x04
-#define PCL711_AI_MSB_REG	0x05
-#define PCL711_AI_MSB_DRDY	(1 << 4)
-#define PCL711_AO_LSB_REG(x)	(0x04 + ((x) * 2))
-#define PCL711_AO_MSB_REG(x)	(0x05 + ((x) * 2))
-#define PCL711_DI_LSB_REG	0x06
-#define PCL711_DI_MSB_REG	0x07
-#define PCL711_INT_STAT_REG	0x08
-#define PCL711_INT_STAT_CLR	(0 << 0)  /* any value will work */
-#define PCL711_AI_GAIN_REG	0x09
-#define PCL711_AI_GAIN(x)	(((x) & 0xf) << 0)
-#define PCL711_MUX_REG		0x0a
-#define PCL711_MUX_CHAN(x)	(((x) & 0xf) << 0)
-#define PCL711_MUX_CS0		(1 << 4)
-#define PCL711_MUX_CS1		(1 << 5)
-#define PCL711_MUX_DIFF		(PCL711_MUX_CS0 | PCL711_MUX_CS1)
-#define PCL711_MODE_REG		0x0b
-#define PCL711_MODE_DEFAULT	(0 << 0)
-#define PCL711_MODE_SOFTTRIG	(1 << 0)
-#define PCL711_MODE_EXT		(2 << 0)
-#define PCL711_MODE_EXT_IRQ	(3 << 0)
-#define PCL711_MODE_PACER	(4 << 0)
-#define PCL711_MODE_PACER_IRQ	(6 << 0)
-#define PCL711_MODE_IRQ(x)	(((x) & 0x7) << 4)
-#define PCL711_SOFTTRIG_REG	0x0c
-#define PCL711_SOFTTRIG		(0 << 0)  /* any value will work */
-#define PCL711_DO_LSB_REG	0x0d
-#define PCL711_DO_MSB_REG	0x0e
-
-static const struct comedi_lrange range_pcl711b_ai = {
-	5, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		BIP_RANGE(0.3125)
-	}
-};
-
-static const struct comedi_lrange range_acl8112hg_ai = {
-	12, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.005),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01),
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_acl8112dg_ai = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		BIP_RANGE(10)
-	}
-};
-
-struct pcl711_board {
-	const char *name;
-	int n_aichan;
-	int n_aochan;
-	int maxirq;
-	const struct comedi_lrange *ai_range_type;
-};
-
-static const struct pcl711_board boardtypes[] = {
-	{
-		.name		= "pcl711",
-		.n_aichan	= 8,
-		.n_aochan	= 1,
-		.ai_range_type	= &range_bipolar5,
-	}, {
-		.name		= "pcl711b",
-		.n_aichan	= 8,
-		.n_aochan	= 1,
-		.maxirq		= 7,
-		.ai_range_type	= &range_pcl711b_ai,
-	}, {
-		.name		= "acl8112hg",
-		.n_aichan	= 16,
-		.n_aochan	= 2,
-		.maxirq		= 15,
-		.ai_range_type	= &range_acl8112hg_ai,
-	}, {
-		.name		= "acl8112dg",
-		.n_aichan	= 16,
-		.n_aochan	= 2,
-		.maxirq		= 15,
-		.ai_range_type	= &range_acl8112dg_ai,
-	},
-};
-
-static void pcl711_ai_set_mode(struct comedi_device *dev, unsigned int mode)
-{
-	/*
-	 * The pcl711b board uses bits in the mode register to select the
-	 * interrupt. The other boards supported by this driver all use
-	 * jumpers on the board.
-	 *
-	 * Enables the interrupt when needed on the pcl711b board. These
-	 * bits do nothing on the other boards.
-	 */
-	if (mode == PCL711_MODE_EXT_IRQ || mode == PCL711_MODE_PACER_IRQ)
-		mode |= PCL711_MODE_IRQ(dev->irq);
-
-	outb(mode, dev->iobase + PCL711_MODE_REG);
-}
-
-static unsigned int pcl711_ai_get_sample(struct comedi_device *dev,
-					 struct comedi_subdevice *s)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + PCL711_AI_MSB_REG) << 8;
-	val |= inb(dev->iobase + PCL711_AI_LSB_REG);
-
-	return val & s->maxdata;
-}
-
-static int pcl711_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
-	pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
-	return 0;
-}
-
-static irqreturn_t pcl711_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int data;
-
-	if (!dev->attached) {
-		dev_err(dev->class_dev, "spurious interrupt\n");
-		return IRQ_HANDLED;
-	}
-
-	data = pcl711_ai_get_sample(dev, s);
-
-	outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
-
-	comedi_buf_write_samples(s, &data, 1);
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg)
-		s->async->events |= COMEDI_CB_EOA;
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-static void pcl711_set_changain(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned int chanspec)
-{
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int aref = CR_AREF(chanspec);
-	unsigned int mux = 0;
-
-	outb(PCL711_AI_GAIN(range), dev->iobase + PCL711_AI_GAIN_REG);
-
-	if (s->n_chan > 8) {
-		/* Select the correct MPC508A chip */
-		if (aref == AREF_DIFF) {
-			chan &= 0x7;
-			mux |= PCL711_MUX_DIFF;
-		} else {
-			if (chan < 8)
-				mux |= PCL711_MUX_CS0;
-			else
-				mux |= PCL711_MUX_CS1;
-		}
-	}
-	outb(mux | PCL711_MUX_CHAN(chan), dev->iobase + PCL711_MUX_REG);
-}
-
-static int pcl711_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + PCL711_AI_MSB_REG);
-	if ((status & PCL711_AI_MSB_DRDY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static int pcl711_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	int ret;
-	int i;
-
-	pcl711_set_changain(dev, s, insn->chanspec);
-
-	pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
-
-	for (i = 0; i < insn->n; i++) {
-		outb(PCL711_SOFTTRIG, dev->iobase + PCL711_SOFTTRIG_REG);
-
-		ret = comedi_timeout(dev, s, insn, pcl711_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[i] = pcl711_ai_get_sample(dev, s);
-	}
-
-	return insn->n;
-}
-
-static int pcl711_ai_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_EXT) {
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	} else {
-#define MAX_SPEED 1000
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    MAX_SPEED);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4 */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		unsigned int arg = cmd->scan_begin_arg;
-
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	pcl711_set_changain(dev, s, cmd->chanlist[0]);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-		outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
-		pcl711_ai_set_mode(dev, PCL711_MODE_PACER_IRQ);
-	} else {
-		pcl711_ai_set_mode(dev, PCL711_MODE_EXT_IRQ);
-	}
-
-	return 0;
-}
-
-static void pcl711_ao_write(struct comedi_device *dev,
-			    unsigned int chan, unsigned int val)
-{
-	outb(val & 0xff, dev->iobase + PCL711_AO_LSB_REG(chan));
-	outb((val >> 8) & 0xff, dev->iobase + PCL711_AO_MSB_REG(chan));
-}
-
-static int pcl711_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		pcl711_ao_write(dev, chan, val);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pcl711_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + PCL711_DI_LSB_REG);
-	val |= (inb(dev->iobase + PCL711_DI_MSB_REG) << 8);
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int pcl711_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int mask;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0x00ff)
-			outb(s->state & 0xff, dev->iobase + PCL711_DO_LSB_REG);
-		if (mask & 0xff00)
-			outb((s->state >> 8), dev->iobase + PCL711_DO_MSB_REG);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct pcl711_board *board = dev->board_ptr;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	if (it->options[1] && it->options[1] <= board->maxirq) {
-		ret = request_irq(it->options[1], pcl711_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	dev->pacer = comedi_8254_init(dev->iobase + PCL711_TIMER_BASE,
-				      I8254_OSC_BASE_2MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	if (board->n_aichan > 8)
-		s->subdev_flags	|= SDF_DIFF;
-	s->n_chan	= board->n_aichan;
-	s->maxdata	= 0xfff;
-	s->range_table	= board->ai_range_type;
-	s->insn_read	= pcl711_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= 1;
-		s->do_cmdtest	= pcl711_ai_cmdtest;
-		s->do_cmd	= pcl711_ai_cmd;
-		s->cancel	= pcl711_ai_cancel;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= board->n_aochan;
-	s->maxdata	= 0xfff;
-	s->range_table	= &range_bipolar5;
-	s->insn_write	= pcl711_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcl711_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcl711_do_insn_bits;
-
-	/* clear DAC */
-	pcl711_ao_write(dev, 0, 0x0);
-	pcl711_ao_write(dev, 1, 0x0);
-
-	return 0;
-}
-
-static struct comedi_driver pcl711_driver = {
-	.driver_name	= "pcl711",
-	.module		= THIS_MODULE,
-	.attach		= pcl711_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.offset		= sizeof(struct pcl711_board),
-};
-module_comedi_driver(pcl711_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for PCL-711 compatible boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcl724.c b/drivers/staging/comedi/drivers/pcl724.c
deleted file mode 100644
index 74b07e1744c7..000000000000
--- a/drivers/staging/comedi/drivers/pcl724.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * pcl724.c
- * Comedi driver for 8255 based ISA and PC/104 DIO boards
- *
- * Michal Dobes <dobes@tesnet.cz>
- */
-
-/*
- * Driver: pcl724
- * Description: Comedi driver for 8255 based ISA DIO boards
- * Devices: [Advantech] PCL-724 (pcl724), PCL-722 (pcl722), PCL-731 (pcl731),
- *  [ADLink] ACL-7122 (acl7122), ACL-7124 (acl7124), PET-48DIO (pet48dio),
- *  [WinSystems] PCM-IO48 (pcmio48),
- *  [Diamond Systems] ONYX-MM-DIO (onyx-mm-dio)
- * Author: Michal Dobes <dobes@tesnet.cz>
- * Status: untested
- *
- * Configuration options:
- *   [0] - IO Base
- *   [1] - IRQ (not supported)
- *   [2] - number of DIO (pcl722 and acl7122 boards)
- *	   0, 144: 144 DIO configuration
- *	   1,  96:  96 DIO configuration
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include "8255.h"
-
-struct pcl724_board {
-	const char *name;
-	unsigned int io_range;
-	unsigned int can_have96:1;
-	unsigned int is_pet48:1;
-	int numofports;
-};
-
-static const struct pcl724_board boardtypes[] = {
-	{
-		.name		= "pcl724",
-		.io_range	= 0x04,
-		.numofports	= 1,	/* 24 DIO channels */
-	}, {
-		.name		= "pcl722",
-		.io_range	= 0x20,
-		.can_have96	= 1,
-		.numofports	= 6,	/* 144 (or 96) DIO channels */
-	}, {
-		.name		= "pcl731",
-		.io_range	= 0x08,
-		.numofports	= 2,	/* 48 DIO channels */
-	}, {
-		.name		= "acl7122",
-		.io_range	= 0x20,
-		.can_have96	= 1,
-		.numofports	= 6,	/* 144 (or 96) DIO channels */
-	}, {
-		.name		= "acl7124",
-		.io_range	= 0x04,
-		.numofports	= 1,	/* 24 DIO channels */
-	}, {
-		.name		= "pet48dio",
-		.io_range	= 0x02,
-		.is_pet48	= 1,
-		.numofports	= 2,	/* 48 DIO channels */
-	}, {
-		.name		= "pcmio48",
-		.io_range	= 0x08,
-		.numofports	= 2,	/* 48 DIO channels */
-	}, {
-		.name		= "onyx-mm-dio",
-		.io_range	= 0x10,
-		.numofports	= 2,	/* 48 DIO channels */
-	},
-};
-
-static int pcl724_8255mapped_io(struct comedi_device *dev,
-				int dir, int port, int data,
-				unsigned long iobase)
-{
-	int movport = I8255_SIZE * (iobase >> 12);
-
-	iobase &= 0x0fff;
-
-	outb(port + movport, iobase);
-	if (dir) {
-		outb(data, iobase + 1);
-		return 0;
-	}
-	return inb(iobase + 1);
-}
-
-static int pcl724_attach(struct comedi_device *dev,
-			 struct comedi_devconfig *it)
-{
-	const struct pcl724_board *board = dev->board_ptr;
-	struct comedi_subdevice *s;
-	unsigned long iobase;
-	unsigned int iorange;
-	int n_subdevices;
-	int ret;
-	int i;
-
-	iorange = board->io_range;
-	n_subdevices = board->numofports;
-
-	/* Handle PCL-724 in 96 DIO configuration */
-	if (board->can_have96 &&
-	    (it->options[2] == 1 || it->options[2] == 96)) {
-		iorange = 0x10;
-		n_subdevices = 4;
-	}
-
-	ret = comedi_request_region(dev, it->options[0], iorange);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		if (board->is_pet48) {
-			iobase = dev->iobase + (i * 0x1000);
-			ret = subdev_8255_init(dev, s, pcl724_8255mapped_io,
-					       iobase);
-		} else {
-			ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
-		}
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver pcl724_driver = {
-	.driver_name	= "pcl724",
-	.module		= THIS_MODULE,
-	.attach		= pcl724_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.offset		= sizeof(struct pcl724_board),
-};
-module_comedi_driver(pcl724_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for 8255 based ISA and PC/104 DIO boards");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
deleted file mode 100644
index 256850ccb6fa..000000000000
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ /dev/null
@@ -1,432 +0,0 @@
-/*
- * pcl726.c
- * Comedi driver for 6/12-Channel D/A Output and DIO cards
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: pcl726
- * Description: Advantech PCL-726 & compatibles
- * Author: David A. Schleef <ds@schleef.org>
- * Status: untested
- * Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
- *   [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)
- *
- * Configuration Options:
- *   [0]  - IO Base
- *   [1]  - IRQ (ACL-6126 only)
- *   [2]  - D/A output range for channel 0
- *   [3]  - D/A output range for channel 1
- *
- * Boards with > 2 analog output channels:
- *   [4]  - D/A output range for channel 2
- *   [5]  - D/A output range for channel 3
- *   [6]  - D/A output range for channel 4
- *   [7]  - D/A output range for channel 5
- *
- * Boards with > 6 analog output channels:
- *   [8]  - D/A output range for channel 6
- *   [9]  - D/A output range for channel 7
- *   [10] - D/A output range for channel 8
- *   [11] - D/A output range for channel 9
- *   [12] - D/A output range for channel 10
- *   [13] - D/A output range for channel 11
- *
- * For PCL-726 the D/A output ranges are:
- *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA, 5: unknown
- *
- * For PCL-727:
- *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: 4-20mA
- *
- * For PCL-728 and ACL-6128:
- *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA, 5: 0-20mA
- *
- * For ACL-6126:
- *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#define PCL726_AO_MSB_REG(x)	(0x00 + ((x) * 2))
-#define PCL726_AO_LSB_REG(x)	(0x01 + ((x) * 2))
-#define PCL726_DO_MSB_REG	0x0c
-#define PCL726_DO_LSB_REG	0x0d
-#define PCL726_DI_MSB_REG	0x0e
-#define PCL726_DI_LSB_REG	0x0f
-
-#define PCL727_DI_MSB_REG	0x00
-#define PCL727_DI_LSB_REG	0x01
-#define PCL727_DO_MSB_REG	0x18
-#define PCL727_DO_LSB_REG	0x19
-
-static const struct comedi_lrange *const rangelist_726[] = {
-	&range_unipolar5,
-	&range_unipolar10,
-	&range_bipolar5,
-	&range_bipolar10,
-	&range_4_20mA,
-	&range_unknown
-};
-
-static const struct comedi_lrange *const rangelist_727[] = {
-	&range_unipolar5,
-	&range_unipolar10,
-	&range_bipolar5,
-	&range_4_20mA
-};
-
-static const struct comedi_lrange *const rangelist_728[] = {
-	&range_unipolar5,
-	&range_unipolar10,
-	&range_bipolar5,
-	&range_bipolar10,
-	&range_4_20mA,
-	&range_0_20mA
-};
-
-struct pcl726_board {
-	const char *name;
-	unsigned long io_len;
-	unsigned int irq_mask;
-	const struct comedi_lrange *const *ao_ranges;
-	int ao_num_ranges;
-	int ao_nchan;
-	unsigned int have_dio:1;
-	unsigned int is_pcl727:1;
-};
-
-static const struct pcl726_board pcl726_boards[] = {
-	{
-		.name		= "pcl726",
-		.io_len		= 0x10,
-		.ao_ranges	= &rangelist_726[0],
-		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
-		.ao_nchan	= 6,
-		.have_dio	= 1,
-	}, {
-		.name		= "pcl727",
-		.io_len		= 0x20,
-		.ao_ranges	= &rangelist_727[0],
-		.ao_num_ranges	= ARRAY_SIZE(rangelist_727),
-		.ao_nchan	= 12,
-		.have_dio	= 1,
-		.is_pcl727	= 1,
-	}, {
-		.name		= "pcl728",
-		.io_len		= 0x08,
-		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
-		.ao_ranges	= &rangelist_728[0],
-		.ao_nchan	= 2,
-	}, {
-		.name		= "acl6126",
-		.io_len		= 0x10,
-		.irq_mask	= 0x96e8,
-		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
-		.ao_ranges	= &rangelist_726[0],
-		.ao_nchan	= 6,
-		.have_dio	= 1,
-	}, {
-		.name		= "acl6128",
-		.io_len		= 0x08,
-		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
-		.ao_ranges	= &rangelist_728[0],
-		.ao_nchan	= 2,
-	},
-};
-
-struct pcl726_private {
-	const struct comedi_lrange *rangelist[12];
-	unsigned int cmd_running:1;
-};
-
-static int pcl726_intr_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	data[1] = 0;
-	return insn->n;
-}
-
-static int pcl726_intr_cmdtest(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-	/* Step 2b : and mutually compatible */
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-	err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	/* Step 5: check channel list if it exists */
-
-	return 0;
-}
-
-static int pcl726_intr_cmd(struct comedi_device *dev,
-			   struct comedi_subdevice *s)
-{
-	struct pcl726_private *devpriv = dev->private;
-
-	devpriv->cmd_running = 1;
-
-	return 0;
-}
-
-static int pcl726_intr_cancel(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct pcl726_private *devpriv = dev->private;
-
-	devpriv->cmd_running = 0;
-
-	return 0;
-}
-
-static irqreturn_t pcl726_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct pcl726_private *devpriv = dev->private;
-
-	if (devpriv->cmd_running) {
-		pcl726_intr_cancel(dev, s);
-
-		comedi_buf_write_samples(s, &s->state, 1);
-		comedi_handle_events(dev, s);
-	}
-
-	return IRQ_HANDLED;
-}
-
-static int pcl726_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		/* bipolar data to the DAC is two's complement */
-		if (comedi_chan_range_is_bipolar(s, chan, range))
-			val = comedi_offset_munge(s, val);
-
-		/* order is important, MSB then LSB */
-		outb((val >> 8) & 0xff, dev->iobase + PCL726_AO_MSB_REG(chan));
-		outb(val & 0xff, dev->iobase + PCL726_AO_LSB_REG(chan));
-	}
-
-	return insn->n;
-}
-
-static int pcl726_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	const struct pcl726_board *board = dev->board_ptr;
-	unsigned int val;
-
-	if (board->is_pcl727) {
-		val = inb(dev->iobase + PCL727_DI_LSB_REG);
-		val |= (inb(dev->iobase + PCL727_DI_MSB_REG) << 8);
-	} else {
-		val = inb(dev->iobase + PCL726_DI_LSB_REG);
-		val |= (inb(dev->iobase + PCL726_DI_MSB_REG) << 8);
-	}
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int pcl726_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	const struct pcl726_board *board = dev->board_ptr;
-	unsigned long io = dev->iobase;
-	unsigned int mask;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (board->is_pcl727) {
-			if (mask & 0x00ff)
-				outb(s->state & 0xff, io + PCL727_DO_LSB_REG);
-			if (mask & 0xff00)
-				outb((s->state >> 8), io + PCL727_DO_MSB_REG);
-		} else {
-			if (mask & 0x00ff)
-				outb(s->state & 0xff, io + PCL726_DO_LSB_REG);
-			if (mask & 0xff00)
-				outb((s->state >> 8), io + PCL726_DO_MSB_REG);
-		}
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int pcl726_attach(struct comedi_device *dev,
-			 struct comedi_devconfig *it)
-{
-	const struct pcl726_board *board = dev->board_ptr;
-	struct pcl726_private *devpriv;
-	struct comedi_subdevice *s;
-	int subdev;
-	int ret;
-	int i;
-
-	ret = comedi_request_region(dev, it->options[0], board->io_len);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	/*
-	 * Hook up the external trigger source interrupt only if the
-	 * user config option is valid and the board supports interrupts.
-	 */
-	if (it->options[1] && (board->irq_mask & (1 << it->options[1]))) {
-		ret = request_irq(it->options[1], pcl726_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0) {
-			/* External trigger source is from Pin-17 of CN3 */
-			dev->irq = it->options[1];
-		}
-	}
-
-	/* setup the per-channel analog output range_table_list */
-	for (i = 0; i < 12; i++) {
-		unsigned int opt = it->options[2 + i];
-
-		if (opt < board->ao_num_ranges && i < board->ao_nchan)
-			devpriv->rangelist[i] = board->ao_ranges[opt];
-		else
-			devpriv->rangelist[i] = &range_unknown;
-	}
-
-	subdev = board->have_dio ? 3 : 1;
-	if (dev->irq)
-		subdev++;
-	ret = comedi_alloc_subdevices(dev, subdev);
-	if (ret)
-		return ret;
-
-	subdev = 0;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[subdev++];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
-	s->n_chan	= board->ao_nchan;
-	s->maxdata	= 0x0fff;
-	s->range_table_list = devpriv->rangelist;
-	s->insn_write	= pcl726_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	if (board->have_dio) {
-		/* Digital Input subdevice */
-		s = &dev->subdevices[subdev++];
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= 16;
-		s->maxdata	= 1;
-		s->insn_bits	= pcl726_di_insn_bits;
-		s->range_table	= &range_digital;
-
-		/* Digital Output subdevice */
-		s = &dev->subdevices[subdev++];
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= 16;
-		s->maxdata	= 1;
-		s->insn_bits	= pcl726_do_insn_bits;
-		s->range_table	= &range_digital;
-	}
-
-	if (dev->irq) {
-		/* Digial Input subdevice - Interrupt support */
-		s = &dev->subdevices[subdev++];
-		dev->read_subdev = s;
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
-		s->n_chan	= 1;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcl726_intr_insn_bits;
-		s->len_chanlist	= 1;
-		s->do_cmdtest	= pcl726_intr_cmdtest;
-		s->do_cmd	= pcl726_intr_cmd;
-		s->cancel	= pcl726_intr_cancel;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver pcl726_driver = {
-	.driver_name	= "pcl726",
-	.module		= THIS_MODULE,
-	.attach		= pcl726_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &pcl726_boards[0].name,
-	.num_names	= ARRAY_SIZE(pcl726_boards),
-	.offset		= sizeof(struct pcl726_board),
-};
-module_comedi_driver(pcl726_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Advantech PCL-726 & compatibles");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcl730.c b/drivers/staging/comedi/drivers/pcl730.c
deleted file mode 100644
index ce958eef2a61..000000000000
--- a/drivers/staging/comedi/drivers/pcl730.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * comedi/drivers/pcl730.c
- * Driver for Advantech PCL-730 and clones
- * José Luis Sánchez
- */
-
-/*
- * Driver: pcl730
- * Description: Advantech PCL-730 (& compatibles)
- * Devices: [Advantech] PCL-730 (pcl730), PCM-3730 (pcm3730), PCL-725 (pcl725),
- *   PCL-733 (pcl733), PCL-734 (pcl734),
- *   [ADLink] ACL-7130 (acl7130), ACL-7225b (acl7225b),
- *   [ICP] ISO-730 (iso730), P8R8-DIO (p8r8dio), P16R16-DIO (p16r16dio),
- *   [Diamond Systems] OPMM-1616-XT (opmm-1616-xt), PEARL-MM-P (pearl-mm-p),
- *   IR104-PBF (ir104-pbf),
- * Author: José Luis Sánchez (jsanchezv@teleline.es)
- * Status: untested
- *
- * Configuration options:
- *   [0] - I/O port base
- *
- * Interrupts are not supported.
- * The ACL-7130 card has an 8254 timer/counter not supported by this driver.
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-/*
- * Register map
- *
- * The register map varies slightly depending on the board type but
- * all registers are 8-bit.
- *
- * The boardinfo 'io_range' is used to allow comedi to request the
- * proper range required by the board.
- *
- * The comedi_subdevice 'private' data is used to pass the register
- * offset to the (*insn_bits) functions to read/write the correct
- * registers.
- *
- * The basic register mapping looks like this:
- *
- *     BASE+0  Isolated outputs 0-7 (write) / inputs 0-7 (read)
- *     BASE+1  Isolated outputs 8-15 (write) / inputs 8-15 (read)
- *     BASE+2  TTL outputs 0-7 (write) / inputs 0-7 (read)
- *     BASE+3  TTL outputs 8-15 (write) / inputs 8-15 (read)
- *
- * The pcm3730 board does not have register BASE+1.
- *
- * The pcl725 and p8r8dio only have registers BASE+0 and BASE+1:
- *
- *     BASE+0  Isolated outputs 0-7 (write) (read back on p8r8dio)
- *     BASE+1  Isolated inputs 0-7 (read)
- *
- * The acl7225b and p16r16dio boards have this register mapping:
- *
- *     BASE+0  Isolated outputs 0-7 (write) (read back)
- *     BASE+1  Isolated outputs 8-15 (write) (read back)
- *     BASE+2  Isolated inputs 0-7 (read)
- *     BASE+3  Isolated inputs 8-15 (read)
- *
- * The pcl733 and pcl733 boards have this register mapping:
- *
- *     BASE+0  Isolated outputs 0-7 (write) or inputs 0-7 (read)
- *     BASE+1  Isolated outputs 8-15 (write) or inputs 8-15 (read)
- *     BASE+2  Isolated outputs 16-23 (write) or inputs 16-23 (read)
- *     BASE+3  Isolated outputs 24-31 (write) or inputs 24-31 (read)
- *
- * The opmm-1616-xt board has this register mapping:
- *
- *     BASE+0  Isolated outputs 0-7 (write) (read back)
- *     BASE+1  Isolated outputs 8-15 (write) (read back)
- *     BASE+2  Isolated inputs 0-7 (read)
- *     BASE+3  Isolated inputs 8-15 (read)
- *
- *     These registers are not currently supported:
- *
- *     BASE+2  Relay select register (write)
- *     BASE+3  Board reset control register (write)
- *     BASE+4  Interrupt control register (write)
- *     BASE+4  Change detect 7-0 status register (read)
- *     BASE+5  LED control register (write)
- *     BASE+5  Change detect 15-8 status register (read)
- *
- * The pearl-mm-p board has this register mapping:
- *
- *     BASE+0  Isolated outputs 0-7 (write)
- *     BASE+1  Isolated outputs 8-15 (write)
- *
- * The ir104-pbf board has this register mapping:
- *
- *     BASE+0  Isolated outputs 0-7 (write) (read back)
- *     BASE+1  Isolated outputs 8-15 (write) (read back)
- *     BASE+2  Isolated outputs 16-19 (write) (read back)
- *     BASE+4  Isolated inputs 0-7 (read)
- *     BASE+5  Isolated inputs 8-15 (read)
- *     BASE+6  Isolated inputs 16-19 (read)
- */
-
-struct pcl730_board {
-	const char *name;
-	unsigned int io_range;
-	unsigned is_pcl725:1;
-	unsigned is_acl7225b:1;
-	unsigned is_ir104:1;
-	unsigned has_readback:1;
-	unsigned has_ttl_io:1;
-	int n_subdevs;
-	int n_iso_out_chan;
-	int n_iso_in_chan;
-	int n_ttl_chan;
-};
-
-static const struct pcl730_board pcl730_boards[] = {
-	{
-		.name		= "pcl730",
-		.io_range	= 0x04,
-		.has_ttl_io	= 1,
-		.n_subdevs	= 4,
-		.n_iso_out_chan	= 16,
-		.n_iso_in_chan	= 16,
-		.n_ttl_chan	= 16,
-	}, {
-		.name		= "iso730",
-		.io_range	= 0x04,
-		.n_subdevs	= 4,
-		.n_iso_out_chan	= 16,
-		.n_iso_in_chan	= 16,
-		.n_ttl_chan	= 16,
-	}, {
-		.name		= "acl7130",
-		.io_range	= 0x08,
-		.has_ttl_io	= 1,
-		.n_subdevs	= 4,
-		.n_iso_out_chan	= 16,
-		.n_iso_in_chan	= 16,
-		.n_ttl_chan	= 16,
-	}, {
-		.name		= "pcm3730",
-		.io_range	= 0x04,
-		.has_ttl_io	= 1,
-		.n_subdevs	= 4,
-		.n_iso_out_chan	= 8,
-		.n_iso_in_chan	= 8,
-		.n_ttl_chan	= 16,
-	}, {
-		.name		= "pcl725",
-		.io_range	= 0x02,
-		.is_pcl725	= 1,
-		.n_subdevs	= 2,
-		.n_iso_out_chan	= 8,
-		.n_iso_in_chan	= 8,
-	}, {
-		.name		= "p8r8dio",
-		.io_range	= 0x02,
-		.is_pcl725	= 1,
-		.has_readback	= 1,
-		.n_subdevs	= 2,
-		.n_iso_out_chan	= 8,
-		.n_iso_in_chan	= 8,
-	}, {
-		.name		= "acl7225b",
-		.io_range	= 0x08,		/* only 4 are used */
-		.is_acl7225b	= 1,
-		.has_readback	= 1,
-		.n_subdevs	= 2,
-		.n_iso_out_chan	= 16,
-		.n_iso_in_chan	= 16,
-	}, {
-		.name		= "p16r16dio",
-		.io_range	= 0x04,
-		.is_acl7225b	= 1,
-		.has_readback	= 1,
-		.n_subdevs	= 2,
-		.n_iso_out_chan	= 16,
-		.n_iso_in_chan	= 16,
-	}, {
-		.name		= "pcl733",
-		.io_range	= 0x04,
-		.n_subdevs	= 1,
-		.n_iso_in_chan	= 32,
-	}, {
-		.name		= "pcl734",
-		.io_range	= 0x04,
-		.n_subdevs	= 1,
-		.n_iso_out_chan	= 32,
-	}, {
-		.name		= "opmm-1616-xt",
-		.io_range	= 0x10,
-		.is_acl7225b	= 1,
-		.has_readback	= 1,
-		.n_subdevs	= 2,
-		.n_iso_out_chan	= 16,
-		.n_iso_in_chan	= 16,
-	}, {
-		.name		= "pearl-mm-p",
-		.io_range	= 0x02,
-		.n_subdevs	= 1,
-		.n_iso_out_chan	= 16,
-	}, {
-		.name		= "ir104-pbf",
-		.io_range	= 0x08,
-		.is_ir104	= 1,
-		.has_readback	= 1,
-		.n_iso_out_chan	= 20,
-		.n_iso_in_chan	= 20,
-	},
-};
-
-static int pcl730_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned long reg = (unsigned long)s->private;
-	unsigned int mask;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		if (mask & 0x00ff)
-			outb(s->state & 0xff, dev->iobase + reg);
-		if ((mask & 0xff00) && (s->n_chan > 8))
-			outb((s->state >> 8) & 0xff, dev->iobase + reg + 1);
-		if ((mask & 0xff0000) && (s->n_chan > 16))
-			outb((s->state >> 16) & 0xff, dev->iobase + reg + 2);
-		if ((mask & 0xff000000) && (s->n_chan > 24))
-			outb((s->state >> 24) & 0xff, dev->iobase + reg + 3);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static unsigned int pcl730_get_bits(struct comedi_device *dev,
-				    struct comedi_subdevice *s)
-{
-	unsigned long reg = (unsigned long)s->private;
-	unsigned int val;
-
-	val = inb(dev->iobase + reg);
-	if (s->n_chan > 8)
-		val |= (inb(dev->iobase + reg + 1) << 8);
-	if (s->n_chan > 16)
-		val |= (inb(dev->iobase + reg + 2) << 16);
-	if (s->n_chan > 24)
-		val |= (inb(dev->iobase + reg + 3) << 24);
-
-	return val;
-}
-
-static int pcl730_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	data[1] = pcl730_get_bits(dev, s);
-
-	return insn->n;
-}
-
-static int pcl730_attach(struct comedi_device *dev,
-			 struct comedi_devconfig *it)
-{
-	const struct pcl730_board *board = dev->board_ptr;
-	struct comedi_subdevice *s;
-	int subdev;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], board->io_range);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, board->n_subdevs);
-	if (ret)
-		return ret;
-
-	subdev = 0;
-
-	if (board->n_iso_out_chan) {
-		/* Isolated Digital Outputs */
-		s = &dev->subdevices[subdev++];
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= board->n_iso_out_chan;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcl730_do_insn_bits;
-		s->private	= (void *)0;
-
-		/* get the initial state if supported */
-		if (board->has_readback)
-			s->state = pcl730_get_bits(dev, s);
-	}
-
-	if (board->n_iso_in_chan) {
-		/* Isolated Digital Inputs */
-		s = &dev->subdevices[subdev++];
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= board->n_iso_in_chan;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcl730_di_insn_bits;
-		s->private	= board->is_ir104 ? (void *)4 :
-				  board->is_acl7225b ? (void *)2 :
-				  board->is_pcl725 ? (void *)1 : (void *)0;
-	}
-
-	if (board->has_ttl_io) {
-		/* TTL Digital Outputs */
-		s = &dev->subdevices[subdev++];
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= board->n_ttl_chan;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcl730_do_insn_bits;
-		s->private	= (void *)2;
-
-		/* TTL Digital Inputs */
-		s = &dev->subdevices[subdev++];
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= board->n_ttl_chan;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcl730_di_insn_bits;
-		s->private	= (void *)2;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver pcl730_driver = {
-	.driver_name	= "pcl730",
-	.module		= THIS_MODULE,
-	.attach		= pcl730_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &pcl730_boards[0].name,
-	.num_names	= ARRAY_SIZE(pcl730_boards),
-	.offset		= sizeof(struct pcl730_board),
-};
-module_comedi_driver(pcl730_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
deleted file mode 100644
index 48f6cdf440b9..000000000000
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ /dev/null
@@ -1,1317 +0,0 @@
-/*
- * comedi/drivers/pcl812.c
- *
- * Author: Michal Dobes <dobes@tesnet.cz>
- *
- * hardware driver for Advantech cards
- *  card:   PCL-812, PCL-812PG, PCL-813, PCL-813B
- *  driver: pcl812,  pcl812pg,  pcl813,  pcl813b
- * and for ADlink cards
- *  card:   ACL-8112DG, ACL-8112HG, ACL-8112PG, ACL-8113, ACL-8216
- *  driver: acl8112dg,  acl8112hg,  acl8112pg,  acl8113,  acl8216
- * and for ICP DAS cards
- *  card:   ISO-813, A-821PGH, A-821PGL, A-821PGL-NDA, A-822PGH, A-822PGL,
- *  driver: iso813,  a821pgh,  a-821pgl, a-821pglnda,  a822pgh,  a822pgl,
- *  card:   A-823PGH, A-823PGL, A-826PG
- * driver:  a823pgh,  a823pgl,  a826pg
- */
-
-/*
- * Driver: pcl812
- * Description: Advantech PCL-812/PG, PCL-813/B,
- *	     ADLink ACL-8112DG/HG/PG, ACL-8113, ACL-8216,
- *	     ICP DAS A-821PGH/PGL/PGL-NDA, A-822PGH/PGL, A-823PGH/PGL, A-826PG,
- *	     ICP DAS ISO-813
- * Author: Michal Dobes <dobes@tesnet.cz>
- * Devices: [Advantech] PCL-812 (pcl812), PCL-812PG (pcl812pg),
- *	PCL-813 (pcl813), PCL-813B (pcl813b), [ADLink] ACL-8112DG (acl8112dg),
- *	ACL-8112HG (acl8112hg), ACL-8113 (acl-8113), ACL-8216 (acl8216),
- *	[ICP] ISO-813 (iso813), A-821PGH (a821pgh), A-821PGL (a821pgl),
- *	A-821PGL-NDA (a821pclnda), A-822PGH (a822pgh), A-822PGL (a822pgl),
- *	A-823PGH (a823pgh), A-823PGL (a823pgl), A-826PG (a826pg)
- * Updated: Mon, 06 Aug 2007 12:03:15 +0100
- * Status: works (I hope. My board fire up under my hands
- *	       and I cann't test all features.)
- *
- * This driver supports insn and cmd interfaces. Some boards support only insn
- * because their hardware don't allow more (PCL-813/B, ACL-8113, ISO-813).
- * Data transfer over DMA is supported only when you measure only one
- * channel, this is too hardware limitation of these boards.
- *
- * Options for PCL-812:
- *   [0] - IO Base
- *   [1] - IRQ  (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
- *   [2] - DMA  (0=disable, 1, 3)
- *   [3] - 0=trigger source is internal 8253 with 2MHz clock
- *         1=trigger source is external
- *   [4] - 0=A/D input range is +/-10V
- *	   1=A/D input range is +/-5V
- *	   2=A/D input range is +/-2.5V
- *	   3=A/D input range is +/-1.25V
- *	   4=A/D input range is +/-0.625V
- *	   5=A/D input range is +/-0.3125V
- *   [5] - 0=D/A outputs 0-5V  (internal reference -5V)
- *	   1=D/A outputs 0-10V (internal reference -10V)
- *	   2=D/A outputs unknown (external reference)
- *
- * Options for PCL-812PG, ACL-8112PG:
- *   [0] - IO Base
- *   [1] - IRQ  (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
- *   [2] - DMA  (0=disable, 1, 3)
- *   [3] - 0=trigger source is internal 8253 with 2MHz clock
- *	   1=trigger source is external
- *   [4] - 0=A/D have max +/-5V input
- *	   1=A/D have max +/-10V input
- *   [5] - 0=D/A outputs 0-5V  (internal reference -5V)
- *	   1=D/A outputs 0-10V (internal reference -10V)
- *	   2=D/A outputs unknown (external reference)
- *
- * Options for ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH, ACL-8216, A-826PG:
- *   [0] - IO Base
- *   [1] - IRQ  (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
- *   [2] - DMA  (0=disable, 1, 3)
- *   [3] - 0=trigger source is internal 8253 with 2MHz clock
- *	   1=trigger source is external
- *   [4] - 0=A/D channels are S.E.
- *	   1=A/D channels are DIFF
- *   [5] - 0=D/A outputs 0-5V  (internal reference -5V)
- *	   1=D/A outputs 0-10V (internal reference -10V)
- *	   2=D/A outputs unknown (external reference)
- *
- * Options for A-821PGL/PGH:
- *   [0] - IO Base
- *   [1] - IRQ  (0=disable, 2, 3, 4, 5, 6, 7)
- *   [2] - 0=A/D channels are S.E.
- *	   1=A/D channels are DIFF
- *   [3] - 0=D/A output 0-5V  (internal reference -5V)
- *	   1=D/A output 0-10V (internal reference -10V)
- *
- * Options for A-821PGL-NDA:
- *   [0] - IO Base
- *   [1] - IRQ  (0=disable, 2, 3, 4, 5, 6, 7)
- *   [2] - 0=A/D channels are S.E.
- *	   1=A/D channels are DIFF
- *
- * Options for PCL-813:
- *   [0] - IO Base
- *
- * Options for PCL-813B:
- *   [0] - IO Base
- *   [1] - 0= bipolar inputs
- *	   1= unipolar inputs
- *
- * Options for ACL-8113, ISO-813:
- *   [0] - IO Base
- *   [1] - 0= 10V bipolar inputs
- *	   1= 10V unipolar inputs
- *	   2= 20V bipolar inputs
- *	   3= 20V unipolar inputs
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/gfp.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-#include "comedi_8254.h"
-
-/* hardware types of the cards */
-#define boardPCL812PG	      0	/* and ACL-8112PG */
-#define boardPCL813B	      1
-#define boardPCL812	      2
-#define boardPCL813	      3
-#define boardISO813	      5
-#define boardACL8113	      6
-#define boardACL8112	      7 /* ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH */
-#define boardACL8216	      8	/* and ICP DAS A-826PG */
-#define boardA821	      9	/* PGH, PGL, PGL/NDA versions */
-
-/*
- * Register I/O map
- */
-#define PCL812_TIMER_BASE			0x00
-#define PCL812_AI_LSB_REG			0x04
-#define PCL812_AI_MSB_REG			0x05
-#define PCL812_AI_MSB_DRDY			(1 << 4)
-#define PCL812_AO_LSB_REG(x)			(0x04 + ((x) * 2))
-#define PCL812_AO_MSB_REG(x)			(0x05 + ((x) * 2))
-#define PCL812_DI_LSB_REG			0x06
-#define PCL812_DI_MSB_REG			0x07
-#define PCL812_STATUS_REG			0x08
-#define PCL812_STATUS_DRDY			(1 << 5)
-#define PCL812_RANGE_REG			0x09
-#define PCL812_MUX_REG				0x0a
-#define PCL812_MUX_CHAN(x)			((x) << 0)
-#define PCL812_MUX_CS0				(1 << 4)
-#define PCL812_MUX_CS1				(1 << 5)
-#define PCL812_CTRL_REG				0x0b
-#define PCL812_CTRL_DISABLE_TRIG		(0 << 0)
-#define PCL812_CTRL_SOFT_TRIG			(1 << 0)
-#define PCL812_CTRL_PACER_DMA_TRIG		(2 << 0)
-#define PCL812_CTRL_PACER_EOC_TRIG		(6 << 0)
-#define PCL812_SOFTTRIG_REG			0x0c
-#define PCL812_DO_LSB_REG			0x0d
-#define PCL812_DO_MSB_REG			0x0e
-
-#define MAX_CHANLIST_LEN    256	/* length of scan list */
-
-static const struct comedi_lrange range_pcl812pg_ai = {
-	5, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		BIP_RANGE(0.3125)
-	}
-};
-
-static const struct comedi_lrange range_pcl812pg2_ai = {
-	5, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range812_bipolar1_25 = {
-	1, {
-		BIP_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range812_bipolar0_625 = {
-	1, {
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range812_bipolar0_3125 = {
-	1, {
-		BIP_RANGE(0.3125)
-	}
-};
-
-static const struct comedi_lrange range_pcl813b_ai = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_pcl813b2_ai = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_iso813_1_ai = {
-	5, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		BIP_RANGE(0.3125)
-	}
-};
-
-static const struct comedi_lrange range_iso813_1_2_ai = {
-	5, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		UNI_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_iso813_2_ai = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_iso813_2_2_ai = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_acl8113_1_ai = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_acl8113_1_2_ai = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_acl8113_2_ai = {
-	3, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range_acl8113_2_2_ai = {
-	3, {
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5)
-	}
-};
-
-static const struct comedi_lrange range_acl8112dg_ai = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		BIP_RANGE(10)
-	}
-};
-
-static const struct comedi_lrange range_acl8112hg_ai = {
-	12, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.005),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01),
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_a821pgh_ai = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.005)
-	}
-};
-
-struct pcl812_board {
-	const char *name;
-	int board_type;
-	int n_aichan;
-	int n_aochan;
-	unsigned int ai_ns_min;
-	const struct comedi_lrange *rangelist_ai;
-	unsigned int IRQbits;
-	unsigned int has_dma:1;
-	unsigned int has_16bit_ai:1;
-	unsigned int has_mpc508_mux:1;
-	unsigned int has_dio:1;
-};
-
-static const struct pcl812_board boardtypes[] = {
-	{
-		.name		= "pcl812",
-		.board_type	= boardPCL812,
-		.n_aichan	= 16,
-		.n_aochan	= 2,
-		.ai_ns_min	= 33000,
-		.rangelist_ai	= &range_bipolar10,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "pcl812pg",
-		.board_type	= boardPCL812PG,
-		.n_aichan	= 16,
-		.n_aochan	= 2,
-		.ai_ns_min	= 33000,
-		.rangelist_ai	= &range_pcl812pg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "acl8112pg",
-		.board_type	= boardPCL812PG,
-		.n_aichan	= 16,
-		.n_aochan	= 2,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_pcl812pg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "acl8112dg",
-		.board_type	= boardACL8112,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_acl8112dg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_mpc508_mux	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "acl8112hg",
-		.board_type	= boardACL8112,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_acl8112hg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_mpc508_mux	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "a821pgl",
-		.board_type	= boardA821,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 1,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_pcl813b_ai,
-		.IRQbits	= 0x000c,
-		.has_dio	= 1,
-	}, {
-		.name		= "a821pglnda",
-		.board_type	= boardA821,
-		.n_aichan	= 16,	/* 8 differential */
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_pcl813b_ai,
-		.IRQbits	= 0x000c,
-	}, {
-		.name		= "a821pgh",
-		.board_type	= boardA821,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 1,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_a821pgh_ai,
-		.IRQbits	= 0x000c,
-		.has_dio	= 1,
-	}, {
-		.name		= "a822pgl",
-		.board_type	= boardACL8112,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_acl8112dg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "a822pgh",
-		.board_type	= boardACL8112,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_acl8112hg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "a823pgl",
-		.board_type	= boardACL8112,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 8000,
-		.rangelist_ai	= &range_acl8112dg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "a823pgh",
-		.board_type	= boardACL8112,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 8000,
-		.rangelist_ai	= &range_acl8112hg_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "pcl813",
-		.board_type	= boardPCL813,
-		.n_aichan	= 32,
-		.rangelist_ai	= &range_pcl813b_ai,
-	}, {
-		.name		= "pcl813b",
-		.board_type	= boardPCL813B,
-		.n_aichan	= 32,
-		.rangelist_ai	= &range_pcl813b_ai,
-	}, {
-		.name		= "acl8113",
-		.board_type	= boardACL8113,
-		.n_aichan	= 32,
-		.rangelist_ai	= &range_acl8113_1_ai,
-	}, {
-		.name		= "iso813",
-		.board_type	= boardISO813,
-		.n_aichan	= 32,
-		.rangelist_ai	= &range_iso813_1_ai,
-	}, {
-		.name		= "acl8216",
-		.board_type	= boardACL8216,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_pcl813b2_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_16bit_ai	= 1,
-		.has_mpc508_mux	= 1,
-		.has_dio	= 1,
-	}, {
-		.name		= "a826pg",
-		.board_type	= boardACL8216,
-		.n_aichan	= 16,	/* 8 differential */
-		.n_aochan	= 2,
-		.ai_ns_min	= 10000,
-		.rangelist_ai	= &range_pcl813b2_ai,
-		.IRQbits	= 0xdcfc,
-		.has_dma	= 1,
-		.has_16bit_ai	= 1,
-		.has_dio	= 1,
-	},
-};
-
-struct pcl812_private {
-	struct comedi_isadma *dma;
-	unsigned char range_correction;	/* =1 we must add 1 to range number */
-	unsigned int last_ai_chanspec;
-	unsigned char mode_reg_int; /* stored INT number for some cards */
-	unsigned int ai_poll_ptr; /* how many samples transfer poll */
-	unsigned int max_812_ai_mode0_rangewait; /* settling time for gain */
-	unsigned int use_diff:1;
-	unsigned int use_mpc508:1;
-	unsigned int use_ext_trg:1;
-	unsigned int ai_dma:1;
-	unsigned int ai_eos:1;
-};
-
-static void pcl812_ai_setup_dma(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned int unread_samples)
-{
-	struct pcl812_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned int bytes;
-	unsigned int max_samples;
-	unsigned int nsamples;
-
-	comedi_isadma_disable(dma->chan);
-
-	/* if using EOS, adapt DMA buffer to one scan */
-	bytes = devpriv->ai_eos ? comedi_bytes_per_scan(s) : desc->maxsize;
-	max_samples = comedi_bytes_to_samples(s, bytes);
-
-	/*
-	 * Determine dma size based on the buffer size plus the number of
-	 * unread samples and the number of samples remaining in the command.
-	 */
-	nsamples = comedi_nsamples_left(s, max_samples + unread_samples);
-	if (nsamples > unread_samples) {
-		nsamples -= unread_samples;
-		desc->size = comedi_samples_to_bytes(s, nsamples);
-		comedi_isadma_program(desc);
-	}
-}
-
-static void pcl812_ai_set_chan_range(struct comedi_device *dev,
-				     unsigned int chanspec, char wait)
-{
-	struct pcl812_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int mux = 0;
-
-	if (chanspec == devpriv->last_ai_chanspec)
-		return;
-
-	devpriv->last_ai_chanspec = chanspec;
-
-	if (devpriv->use_mpc508) {
-		if (devpriv->use_diff) {
-			mux |= PCL812_MUX_CS0 | PCL812_MUX_CS1;
-		} else {
-			if (chan < 8)
-				mux |= PCL812_MUX_CS0;
-			else
-				mux |= PCL812_MUX_CS1;
-		}
-	}
-
-	outb(mux | PCL812_MUX_CHAN(chan), dev->iobase + PCL812_MUX_REG);
-	outb(range + devpriv->range_correction, dev->iobase + PCL812_RANGE_REG);
-
-	if (wait)
-		/*
-		 * XXX this depends on selected range and can be very long for
-		 * some high gain ranges!
-		 */
-		udelay(devpriv->max_812_ai_mode0_rangewait);
-}
-
-static void pcl812_ai_clear_eoc(struct comedi_device *dev)
-{
-	/* writing any value clears the interrupt request */
-	outb(0, dev->iobase + PCL812_STATUS_REG);
-}
-
-static void pcl812_ai_soft_trig(struct comedi_device *dev)
-{
-	/* writing any value triggers a software conversion */
-	outb(255, dev->iobase + PCL812_SOFTTRIG_REG);
-}
-
-static unsigned int pcl812_ai_get_sample(struct comedi_device *dev,
-					 struct comedi_subdevice *s)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + PCL812_AI_MSB_REG) << 8;
-	val |= inb(dev->iobase + PCL812_AI_LSB_REG);
-
-	return val & s->maxdata;
-}
-
-static int pcl812_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	if (s->maxdata > 0x0fff) {
-		status = inb(dev->iobase + PCL812_STATUS_REG);
-		if ((status & PCL812_STATUS_DRDY) == 0)
-			return 0;
-	} else {
-		status = inb(dev->iobase + PCL812_AI_MSB_REG);
-		if ((status & PCL812_AI_MSB_DRDY) == 0)
-			return 0;
-	}
-	return -EBUSY;
-}
-
-static int pcl812_ai_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	const struct pcl812_board *board = dev->board_ptr;
-	struct pcl812_private *devpriv = dev->private;
-	int err = 0;
-	unsigned int flags;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-
-	if (devpriv->use_ext_trg)
-		flags = TRIG_EXT;
-	else
-		flags = TRIG_TIMER;
-	err |= comedi_check_trigger_src(&cmd->convert_src, flags);
-
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ai_ns_min);
-	} else {	/* TRIG_EXT */
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	}
-
-	err |= comedi_check_trigger_arg_min(&cmd->chanlist_len, 1);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		unsigned int arg = cmd->convert_arg;
-
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcl812_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int ctrl = 0;
-	unsigned int i;
-
-	pcl812_ai_set_chan_range(dev, cmd->chanlist[0], 1);
-
-	if (dma) {	/*  check if we can use DMA transfer */
-		devpriv->ai_dma = 1;
-		for (i = 1; i < cmd->chanlist_len; i++)
-			if (cmd->chanlist[0] != cmd->chanlist[i]) {
-				/*  we cann't use DMA :-( */
-				devpriv->ai_dma = 0;
-				break;
-			}
-	} else {
-		devpriv->ai_dma = 0;
-	}
-
-	devpriv->ai_poll_ptr = 0;
-
-	/*  don't we want wake up every scan? */
-	if (cmd->flags & CMDF_WAKE_EOS) {
-		devpriv->ai_eos = 1;
-
-		/*  DMA is useless for this situation */
-		if (cmd->chanlist_len == 1)
-			devpriv->ai_dma = 0;
-	}
-
-	if (devpriv->ai_dma) {
-		/* setup and enable dma for the first buffer */
-		dma->cur_dma = 0;
-		pcl812_ai_setup_dma(dev, s, 0);
-	}
-
-	switch (cmd->convert_src) {
-	case TRIG_TIMER:
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-		break;
-	}
-
-	if (devpriv->ai_dma)
-		ctrl |= PCL812_CTRL_PACER_DMA_TRIG;
-	else
-		ctrl |= PCL812_CTRL_PACER_EOC_TRIG;
-	outb(devpriv->mode_reg_int | ctrl, dev->iobase + PCL812_CTRL_REG);
-
-	return 0;
-}
-
-static bool pcl812_ai_next_chan(struct comedi_device *dev,
-				struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg) {
-		s->async->events |= COMEDI_CB_EOA;
-		return false;
-	}
-
-	return true;
-}
-
-static void pcl812_handle_eoc(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int chan = s->async->cur_chan;
-	unsigned int next_chan;
-	unsigned short val;
-
-	if (pcl812_ai_eoc(dev, s, NULL, 0)) {
-		dev_dbg(dev->class_dev, "A/D cmd IRQ without DRDY!\n");
-		s->async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-
-	val = pcl812_ai_get_sample(dev, s);
-	comedi_buf_write_samples(s, &val, 1);
-
-	/* Set up next channel. Added by abbotti 2010-01-20, but untested. */
-	next_chan = s->async->cur_chan;
-	if (cmd->chanlist[chan] != cmd->chanlist[next_chan])
-		pcl812_ai_set_chan_range(dev, cmd->chanlist[next_chan], 0);
-
-	pcl812_ai_next_chan(dev, s);
-}
-
-static void transfer_from_dma_buf(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned short *ptr,
-				  unsigned int bufptr, unsigned int len)
-{
-	unsigned int i;
-	unsigned short val;
-
-	for (i = len; i; i--) {
-		val = ptr[bufptr++];
-		comedi_buf_write_samples(s, &val, 1);
-
-		if (!pcl812_ai_next_chan(dev, s))
-			break;
-	}
-}
-
-static void pcl812_handle_dma(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct pcl812_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned int nsamples;
-	int bufptr;
-
-	nsamples = comedi_bytes_to_samples(s, desc->size) -
-		   devpriv->ai_poll_ptr;
-	bufptr = devpriv->ai_poll_ptr;
-	devpriv->ai_poll_ptr = 0;
-
-	/* restart dma with the next buffer */
-	dma->cur_dma = 1 - dma->cur_dma;
-	pcl812_ai_setup_dma(dev, s, nsamples);
-
-	transfer_from_dma_buf(dev, s, desc->virt_addr, bufptr, nsamples);
-}
-
-static irqreturn_t pcl812_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct pcl812_private *devpriv = dev->private;
-
-	if (!dev->attached) {
-		pcl812_ai_clear_eoc(dev);
-		return IRQ_HANDLED;
-	}
-
-	if (devpriv->ai_dma)
-		pcl812_handle_dma(dev, s);
-	else
-		pcl812_handle_eoc(dev, s);
-
-	pcl812_ai_clear_eoc(dev);
-
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcl812_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc;
-	unsigned long flags;
-	unsigned int poll;
-	int ret;
-
-	/* poll is valid only for DMA transfer */
-	if (!devpriv->ai_dma)
-		return 0;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	poll = comedi_isadma_poll(dma);
-	poll = comedi_bytes_to_samples(s, poll);
-	if (poll > devpriv->ai_poll_ptr) {
-		desc = &dma->desc[dma->cur_dma];
-		transfer_from_dma_buf(dev, s, desc->virt_addr,
-				      devpriv->ai_poll_ptr,
-				      poll - devpriv->ai_poll_ptr);
-		/* new buffer position */
-		devpriv->ai_poll_ptr = poll;
-
-		ret = comedi_buf_n_bytes_ready(s);
-	} else {
-		/* no new samples */
-		ret = 0;
-	}
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return ret;
-}
-
-static int pcl812_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct pcl812_private *devpriv = dev->private;
-
-	if (devpriv->ai_dma)
-		comedi_isadma_disable(devpriv->dma->chan);
-
-	outb(devpriv->mode_reg_int | PCL812_CTRL_DISABLE_TRIG,
-	     dev->iobase + PCL812_CTRL_REG);
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
-	pcl812_ai_clear_eoc(dev);
-	return 0;
-}
-
-static int pcl812_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct pcl812_private *devpriv = dev->private;
-	int ret = 0;
-	int i;
-
-	outb(devpriv->mode_reg_int | PCL812_CTRL_SOFT_TRIG,
-	     dev->iobase + PCL812_CTRL_REG);
-
-	pcl812_ai_set_chan_range(dev, insn->chanspec, 1);
-
-	for (i = 0; i < insn->n; i++) {
-		pcl812_ai_clear_eoc(dev);
-		pcl812_ai_soft_trig(dev);
-
-		ret = comedi_timeout(dev, s, insn, pcl812_ai_eoc, 0);
-		if (ret)
-			break;
-
-		data[i] = pcl812_ai_get_sample(dev, s);
-	}
-	outb(devpriv->mode_reg_int | PCL812_CTRL_DISABLE_TRIG,
-	     dev->iobase + PCL812_CTRL_REG);
-	pcl812_ai_clear_eoc(dev);
-
-	return ret ? ret : insn->n;
-}
-
-static int pcl812_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outb(val & 0xff, dev->iobase + PCL812_AO_LSB_REG(chan));
-		outb((val >> 8) & 0x0f, dev->iobase + PCL812_AO_MSB_REG(chan));
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pcl812_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	data[1] = inb(dev->iobase + PCL812_DI_LSB_REG) |
-		  (inb(dev->iobase + PCL812_DI_MSB_REG) << 8);
-
-	return insn->n;
-}
-
-static int pcl812_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		outb(s->state & 0xff, dev->iobase + PCL812_DO_LSB_REG);
-		outb((s->state >> 8), dev->iobase + PCL812_DO_MSB_REG);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void pcl812_reset(struct comedi_device *dev)
-{
-	const struct pcl812_board *board = dev->board_ptr;
-	struct pcl812_private *devpriv = dev->private;
-	unsigned int chan;
-
-	/* disable analog input trigger */
-	outb(devpriv->mode_reg_int | PCL812_CTRL_DISABLE_TRIG,
-	     dev->iobase + PCL812_CTRL_REG);
-	pcl812_ai_clear_eoc(dev);
-
-	/*
-	 * Invalidate last_ai_chanspec then set analog input to
-	 * known channel/range.
-	 */
-	devpriv->last_ai_chanspec = CR_PACK(16, 0, 0);
-	pcl812_ai_set_chan_range(dev, CR_PACK(0, 0, 0), 0);
-
-	/* set analog output channels to 0V */
-	for (chan = 0; chan < board->n_aochan; chan++) {
-		outb(0, dev->iobase + PCL812_AO_LSB_REG(chan));
-		outb(0, dev->iobase + PCL812_AO_MSB_REG(chan));
-	}
-
-	/* set all digital outputs low */
-	if (board->has_dio) {
-		outb(0, dev->iobase + PCL812_DO_MSB_REG);
-		outb(0, dev->iobase + PCL812_DO_LSB_REG);
-	}
-}
-
-static void pcl812_set_ai_range_table(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_devconfig *it)
-{
-	const struct pcl812_board *board = dev->board_ptr;
-	struct pcl812_private *devpriv = dev->private;
-
-	/* default to the range table from the boardinfo */
-	s->range_table = board->rangelist_ai;
-
-	/* now check the user config option based on the boardtype */
-	switch (board->board_type) {
-	case boardPCL812PG:
-		if (it->options[4] == 1)
-			s->range_table = &range_pcl812pg2_ai;
-		break;
-	case boardPCL812:
-		switch (it->options[4]) {
-		case 0:
-			s->range_table = &range_bipolar10;
-			break;
-		case 1:
-			s->range_table = &range_bipolar5;
-			break;
-		case 2:
-			s->range_table = &range_bipolar2_5;
-			break;
-		case 3:
-			s->range_table = &range812_bipolar1_25;
-			break;
-		case 4:
-			s->range_table = &range812_bipolar0_625;
-			break;
-		case 5:
-			s->range_table = &range812_bipolar0_3125;
-			break;
-		default:
-			s->range_table = &range_bipolar10;
-			break;
-		}
-		break;
-	case boardPCL813B:
-		if (it->options[1] == 1)
-			s->range_table = &range_pcl813b2_ai;
-		break;
-	case boardISO813:
-		switch (it->options[1]) {
-		case 0:
-			s->range_table = &range_iso813_1_ai;
-			break;
-		case 1:
-			s->range_table = &range_iso813_1_2_ai;
-			break;
-		case 2:
-			s->range_table = &range_iso813_2_ai;
-			devpriv->range_correction = 1;
-			break;
-		case 3:
-			s->range_table = &range_iso813_2_2_ai;
-			devpriv->range_correction = 1;
-			break;
-		default:
-			s->range_table = &range_iso813_1_ai;
-			break;
-		}
-		break;
-	case boardACL8113:
-		switch (it->options[1]) {
-		case 0:
-			s->range_table = &range_acl8113_1_ai;
-			break;
-		case 1:
-			s->range_table = &range_acl8113_1_2_ai;
-			break;
-		case 2:
-			s->range_table = &range_acl8113_2_ai;
-			devpriv->range_correction = 1;
-			break;
-		case 3:
-			s->range_table = &range_acl8113_2_2_ai;
-			devpriv->range_correction = 1;
-			break;
-		default:
-			s->range_table = &range_acl8113_1_ai;
-			break;
-		}
-		break;
-	}
-}
-
-static void pcl812_alloc_dma(struct comedi_device *dev, unsigned int dma_chan)
-{
-	struct pcl812_private *devpriv = dev->private;
-
-	/* only DMA channels 3 and 1 are valid */
-	if (!(dma_chan == 3 || dma_chan == 1))
-		return;
-
-	/* DMA uses two 8K buffers */
-	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan, dma_chan,
-					   PAGE_SIZE * 2, COMEDI_ISADMA_READ);
-}
-
-static void pcl812_free_dma(struct comedi_device *dev)
-{
-	struct pcl812_private *devpriv = dev->private;
-
-	if (devpriv)
-		comedi_isadma_free(devpriv->dma);
-}
-
-static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct pcl812_board *board = dev->board_ptr;
-	struct pcl812_private *devpriv;
-	struct comedi_subdevice *s;
-	int n_subdevices;
-	int subdev;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	if (board->IRQbits) {
-		dev->pacer = comedi_8254_init(dev->iobase + PCL812_TIMER_BASE,
-					      I8254_OSC_BASE_2MHZ,
-					      I8254_IO8, 0);
-		if (!dev->pacer)
-			return -ENOMEM;
-
-		if ((1 << it->options[1]) & board->IRQbits) {
-			ret = request_irq(it->options[1], pcl812_interrupt, 0,
-					  dev->board_name, dev);
-			if (ret == 0)
-				dev->irq = it->options[1];
-		}
-	}
-
-	/* we need an IRQ to do DMA on channel 3 or 1 */
-	if (dev->irq && board->has_dma)
-		pcl812_alloc_dma(dev, it->options[2]);
-
-	/* differential analog inputs? */
-	switch (board->board_type) {
-	case boardA821:
-		if (it->options[2] == 1)
-			devpriv->use_diff = 1;
-		break;
-	case boardACL8112:
-	case boardACL8216:
-		if (it->options[4] == 1)
-			devpriv->use_diff = 1;
-		break;
-	}
-
-	n_subdevices = 1;		/* all boardtypes have analog inputs */
-	if (board->n_aochan > 0)
-		n_subdevices++;
-	if (board->has_dio)
-		n_subdevices += 2;
-
-	ret = comedi_alloc_subdevices(dev, n_subdevices);
-	if (ret)
-		return ret;
-
-	subdev = 0;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[subdev];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE;
-	if (devpriv->use_diff) {
-		s->subdev_flags	|= SDF_DIFF;
-		s->n_chan	= board->n_aichan / 2;
-	} else {
-		s->subdev_flags	|= SDF_GROUND;
-		s->n_chan	= board->n_aichan;
-	}
-	s->maxdata	= board->has_16bit_ai ? 0xffff : 0x0fff;
-
-	pcl812_set_ai_range_table(dev, s, it);
-
-	s->insn_read	= pcl812_ai_insn_read;
-
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= MAX_CHANLIST_LEN;
-		s->do_cmdtest	= pcl812_ai_cmdtest;
-		s->do_cmd	= pcl812_ai_cmd;
-		s->poll		= pcl812_ai_poll;
-		s->cancel	= pcl812_ai_cancel;
-	}
-
-	devpriv->use_mpc508 = board->has_mpc508_mux;
-
-	subdev++;
-
-	/* analog output */
-	if (board->n_aochan > 0) {
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
-		s->n_chan	= board->n_aochan;
-		s->maxdata	= 0xfff;
-		s->range_table	= &range_unipolar5;
-		switch (board->board_type) {
-		case boardA821:
-			if (it->options[3] == 1)
-				s->range_table = &range_unipolar10;
-			break;
-		case boardPCL812:
-		case boardACL8112:
-		case boardPCL812PG:
-		case boardACL8216:
-			if (it->options[5] == 1)
-				s->range_table = &range_unipolar10;
-			if (it->options[5] == 2)
-				s->range_table = &range_unknown;
-			break;
-		}
-		s->insn_write	= pcl812_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-
-		subdev++;
-	}
-
-	if (board->has_dio) {
-		/* Digital Input subdevice */
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_DI;
-		s->subdev_flags	= SDF_READABLE;
-		s->n_chan	= 16;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcl812_di_insn_bits;
-		subdev++;
-
-		/* Digital Output subdevice */
-		s = &dev->subdevices[subdev];
-		s->type		= COMEDI_SUBD_DO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= 16;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcl812_do_insn_bits;
-		subdev++;
-	}
-
-	switch (board->board_type) {
-	case boardACL8216:
-	case boardPCL812PG:
-	case boardPCL812:
-	case boardACL8112:
-		devpriv->max_812_ai_mode0_rangewait = 1;
-		if (it->options[3] > 0)
-						/*  we use external trigger */
-			devpriv->use_ext_trg = 1;
-		break;
-	case boardA821:
-		devpriv->max_812_ai_mode0_rangewait = 1;
-		devpriv->mode_reg_int = (dev->irq << 4) & 0xf0;
-		break;
-	case boardPCL813B:
-	case boardPCL813:
-	case boardISO813:
-	case boardACL8113:
-		/* maybe there must by greatest timeout */
-		devpriv->max_812_ai_mode0_rangewait = 5;
-		break;
-	}
-
-	pcl812_reset(dev);
-
-	return 0;
-}
-
-static void pcl812_detach(struct comedi_device *dev)
-{
-	pcl812_free_dma(dev);
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver pcl812_driver = {
-	.driver_name	= "pcl812",
-	.module		= THIS_MODULE,
-	.attach		= pcl812_attach,
-	.detach		= pcl812_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.offset		= sizeof(struct pcl812_board),
-};
-module_comedi_driver(pcl812_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
deleted file mode 100644
index a353d1b155bb..000000000000
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ /dev/null
@@ -1,712 +0,0 @@
-/*
-   comedi/drivers/pcl816.c
-
-   Author:  Juan Grigera <juan@grigera.com.ar>
-	    based on pcl818 by Michal Dobes <dobes@tesnet.cz> and bits of pcl812
-
-   hardware driver for Advantech cards:
-    card:   PCL-816, PCL814B
-    driver: pcl816
-*/
-/*
-Driver: pcl816
-Description: Advantech PCL-816 cards, PCL-814
-Author: Juan Grigera <juan@grigera.com.ar>
-Devices: [Advantech] PCL-816 (pcl816), PCL-814B (pcl814b)
-Status: works
-Updated: Tue,  2 Apr 2002 23:15:21 -0800
-
-PCL 816 and 814B have 16 SE/DIFF ADCs, 16 DACs, 16 DI and 16 DO.
-Differences are at resolution (16 vs 12 bits).
-
-The driver support AI command mode, other subdevices not written.
-
-Analog output and digital input and output are not supported.
-
-Configuration Options:
-  [0] - IO Base
-  [1] - IRQ	(0=disable, 2, 3, 4, 5, 6, 7)
-  [2] - DMA	(0=disable, 1, 3)
-  [3] - 0, 10=10MHz clock for 8254
-	    1= 1MHz clock for 8254
-
-*/
-
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-#include "comedi_8254.h"
-
-/*
- * Register I/O map
- */
-#define PCL816_DO_DI_LSB_REG			0x00
-#define PCL816_DO_DI_MSB_REG			0x01
-#define PCL816_TIMER_BASE			0x04
-#define PCL816_AI_LSB_REG			0x08
-#define PCL816_AI_MSB_REG			0x09
-#define PCL816_RANGE_REG			0x09
-#define PCL816_CLRINT_REG			0x0a
-#define PCL816_MUX_REG				0x0b
-#define PCL816_MUX_SCAN(_first, _last)		(((_last) << 4) | (_first))
-#define PCL816_CTRL_REG				0x0c
-#define PCL816_CTRL_DISABLE_TRIG		(0 << 0)
-#define PCL816_CTRL_SOFT_TRIG			(1 << 0)
-#define PCL816_CTRL_PACER_TRIG			(1 << 1)
-#define PCL816_CTRL_EXT_TRIG			(1 << 2)
-#define PCL816_CTRL_POE				(1 << 3)
-#define PCL816_CTRL_DMAEN			(1 << 4)
-#define PCL816_CTRL_INTEN			(1 << 5)
-#define PCL816_CTRL_DMASRC_SLOT0		(0 << 6)
-#define PCL816_CTRL_DMASRC_SLOT1		(1 << 6)
-#define PCL816_CTRL_DMASRC_SLOT2		(2 << 6)
-#define PCL816_STATUS_REG			0x0d
-#define PCL816_STATUS_NEXT_CHAN_MASK		(0xf << 0)
-#define PCL816_STATUS_INTSRC_MASK		(3 << 4)
-#define PCL816_STATUS_INTSRC_SLOT0		(0 << 4)
-#define PCL816_STATUS_INTSRC_SLOT1		(1 << 4)
-#define PCL816_STATUS_INTSRC_SLOT2		(2 << 4)
-#define PCL816_STATUS_INTSRC_DMA		(3 << 4)
-#define PCL816_STATUS_INTACT			(1 << 6)
-#define PCL816_STATUS_DRDY			(1 << 7)
-
-#define MAGIC_DMA_WORD 0x5a5a
-
-static const struct comedi_lrange range_pcl816 = {
-	8, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25)
-	}
-};
-
-struct pcl816_board {
-	const char *name;
-	int ai_maxdata;
-	int ao_maxdata;
-	int ai_chanlist;
-};
-
-static const struct pcl816_board boardtypes[] = {
-	{
-		.name		= "pcl816",
-		.ai_maxdata	= 0xffff,
-		.ao_maxdata	= 0xffff,
-		.ai_chanlist	= 1024,
-	}, {
-		.name		= "pcl814b",
-		.ai_maxdata	= 0x3fff,
-		.ao_maxdata	= 0x3fff,
-		.ai_chanlist	= 1024,
-	},
-};
-
-struct pcl816_private {
-	struct comedi_isadma *dma;
-	unsigned int ai_poll_ptr;	/*  how many sampes transfer poll */
-	unsigned int ai_cmd_running:1;
-	unsigned int ai_cmd_canceled:1;
-};
-
-static void pcl816_ai_setup_dma(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned int unread_samples)
-{
-	struct pcl816_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned int max_samples = comedi_bytes_to_samples(s, desc->maxsize);
-	unsigned int nsamples;
-
-	comedi_isadma_disable(dma->chan);
-
-	/*
-	 * Determine dma size based on the buffer maxsize plus the number of
-	 * unread samples and the number of samples remaining in the command.
-	 */
-	nsamples = comedi_nsamples_left(s, max_samples + unread_samples);
-	if (nsamples > unread_samples) {
-		nsamples -= unread_samples;
-		desc->size = comedi_samples_to_bytes(s, nsamples);
-		comedi_isadma_program(desc);
-	}
-}
-
-static void pcl816_ai_set_chan_range(struct comedi_device *dev,
-				     unsigned int chan,
-				     unsigned int range)
-{
-	outb(chan, dev->iobase + PCL816_MUX_REG);
-	outb(range, dev->iobase + PCL816_RANGE_REG);
-}
-
-static void pcl816_ai_set_chan_scan(struct comedi_device *dev,
-				    unsigned int first_chan,
-				    unsigned int last_chan)
-{
-	outb(PCL816_MUX_SCAN(first_chan, last_chan),
-	     dev->iobase + PCL816_MUX_REG);
-}
-
-static void pcl816_ai_setup_chanlist(struct comedi_device *dev,
-				     unsigned int *chanlist,
-				     unsigned int seglen)
-{
-	unsigned int first_chan = CR_CHAN(chanlist[0]);
-	unsigned int last_chan;
-	unsigned int range;
-	unsigned int i;
-
-	/* store range list to card */
-	for (i = 0; i < seglen; i++) {
-		last_chan = CR_CHAN(chanlist[i]);
-		range = CR_RANGE(chanlist[i]);
-
-		pcl816_ai_set_chan_range(dev, last_chan, range);
-	}
-
-	udelay(1);
-
-	pcl816_ai_set_chan_scan(dev, first_chan, last_chan);
-}
-
-static void pcl816_ai_clear_eoc(struct comedi_device *dev)
-{
-	/* writing any value clears the interrupt request */
-	outb(0, dev->iobase + PCL816_CLRINT_REG);
-}
-
-static void pcl816_ai_soft_trig(struct comedi_device *dev)
-{
-	/* writing any value triggers a software conversion */
-	outb(0, dev->iobase + PCL816_AI_LSB_REG);
-}
-
-static unsigned int pcl816_ai_get_sample(struct comedi_device *dev,
-					 struct comedi_subdevice *s)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + PCL816_AI_MSB_REG) << 8;
-	val |= inb(dev->iobase + PCL816_AI_LSB_REG);
-
-	return val & s->maxdata;
-}
-
-static int pcl816_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + PCL816_STATUS_REG);
-	if ((status & PCL816_STATUS_DRDY) == 0)
-		return 0;
-	return -EBUSY;
-}
-
-static bool pcl816_ai_next_chan(struct comedi_device *dev,
-				struct comedi_subdevice *s)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg) {
-		s->async->events |= COMEDI_CB_EOA;
-		return false;
-	}
-
-	return true;
-}
-
-static void transfer_from_dma_buf(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned short *ptr,
-				  unsigned int bufptr, unsigned int len)
-{
-	unsigned short val;
-	int i;
-
-	for (i = 0; i < len; i++) {
-		val = ptr[bufptr++];
-		comedi_buf_write_samples(s, &val, 1);
-
-		if (!pcl816_ai_next_chan(dev, s))
-			return;
-	}
-}
-
-static irqreturn_t pcl816_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct pcl816_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned int nsamples;
-	unsigned int bufptr;
-
-	if (!dev->attached || !devpriv->ai_cmd_running) {
-		pcl816_ai_clear_eoc(dev);
-		return IRQ_HANDLED;
-	}
-
-	if (devpriv->ai_cmd_canceled) {
-		devpriv->ai_cmd_canceled = 0;
-		pcl816_ai_clear_eoc(dev);
-		return IRQ_HANDLED;
-	}
-
-	nsamples = comedi_bytes_to_samples(s, desc->size) -
-		   devpriv->ai_poll_ptr;
-	bufptr = devpriv->ai_poll_ptr;
-	devpriv->ai_poll_ptr = 0;
-
-	/* restart dma with the next buffer */
-	dma->cur_dma = 1 - dma->cur_dma;
-	pcl816_ai_setup_dma(dev, s, nsamples);
-
-	transfer_from_dma_buf(dev, s, desc->virt_addr, bufptr, nsamples);
-
-	pcl816_ai_clear_eoc(dev);
-
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static int check_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      unsigned int *chanlist,
-			      unsigned int chanlen)
-{
-	unsigned int chansegment[16];
-	unsigned int i, nowmustbechan, seglen, segpos;
-
-	/*  correct channel and range number check itself comedi/range.c */
-	if (chanlen < 1) {
-		dev_err(dev->class_dev, "range/channel list is empty!\n");
-		return 0;
-	}
-
-	if (chanlen > 1) {
-		/*  first channel is every time ok */
-		chansegment[0] = chanlist[0];
-		for (i = 1, seglen = 1; i < chanlen; i++, seglen++) {
-			/*  we detect loop, this must by finish */
-			if (chanlist[0] == chanlist[i])
-				break;
-			nowmustbechan =
-			    (CR_CHAN(chansegment[i - 1]) + 1) % chanlen;
-			if (nowmustbechan != CR_CHAN(chanlist[i])) {
-				/*  channel list isn't continuous :-( */
-				dev_dbg(dev->class_dev,
-					"channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
-					i, CR_CHAN(chanlist[i]), nowmustbechan,
-					CR_CHAN(chanlist[0]));
-				return 0;
-			}
-			/*  well, this is next correct channel in list */
-			chansegment[i] = chanlist[i];
-		}
-
-		/*  check whole chanlist */
-		for (i = 0, segpos = 0; i < chanlen; i++) {
-			if (chanlist[i] != chansegment[i % seglen]) {
-				dev_dbg(dev->class_dev,
-					"bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
-					i, CR_CHAN(chansegment[i]),
-					CR_RANGE(chansegment[i]),
-					CR_AREF(chansegment[i]),
-					CR_CHAN(chanlist[i % seglen]),
-					CR_RANGE(chanlist[i % seglen]),
-					CR_AREF(chansegment[i % seglen]));
-				return 0;	/*  chan/gain list is strange */
-			}
-		}
-	} else {
-		seglen = 1;
-	}
-
-	return seglen;	/*  we can serve this with MUX logic */
-}
-
-static int pcl816_ai_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_EXT | TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 10000);
-	else	/* TRIG_EXT */
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-	if (cmd->convert_src == TRIG_TIMER) {
-		unsigned int arg = cmd->convert_arg;
-
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* step 5: complain about special chanlist considerations */
-
-	if (cmd->chanlist) {
-		if (!check_channel_list(dev, s, cmd->chanlist,
-					cmd->chanlist_len))
-			return 5;	/*  incorrect channels list */
-	}
-
-	return 0;
-}
-
-static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcl816_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int ctrl;
-	unsigned int seglen;
-
-	if (devpriv->ai_cmd_running)
-		return -EBUSY;
-
-	seglen = check_channel_list(dev, s, cmd->chanlist, cmd->chanlist_len);
-	if (seglen < 1)
-		return -EINVAL;
-	pcl816_ai_setup_chanlist(dev, cmd->chanlist, seglen);
-	udelay(1);
-
-	devpriv->ai_cmd_running = 1;
-	devpriv->ai_poll_ptr = 0;
-	devpriv->ai_cmd_canceled = 0;
-
-	/* setup and enable dma for the first buffer */
-	dma->cur_dma = 0;
-	pcl816_ai_setup_dma(dev, s, 0);
-
-	comedi_8254_set_mode(dev->pacer, 0, I8254_MODE1 | I8254_BINARY);
-	comedi_8254_write(dev->pacer, 0, 0x0ff);
-	udelay(1);
-	comedi_8254_update_divisors(dev->pacer);
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-
-	ctrl = PCL816_CTRL_INTEN | PCL816_CTRL_DMAEN | PCL816_CTRL_DMASRC_SLOT0;
-	if (cmd->convert_src == TRIG_TIMER)
-		ctrl |= PCL816_CTRL_PACER_TRIG;
-	else	/* TRIG_EXT */
-		ctrl |= PCL816_CTRL_EXT_TRIG;
-
-	outb(ctrl, dev->iobase + PCL816_CTRL_REG);
-	outb((dma->chan << 4) | dev->irq,
-	     dev->iobase + PCL816_STATUS_REG);
-
-	return 0;
-}
-
-static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcl816_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc;
-	unsigned long flags;
-	unsigned int poll;
-	int ret;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	poll = comedi_isadma_poll(dma);
-	poll = comedi_bytes_to_samples(s, poll);
-	if (poll > devpriv->ai_poll_ptr) {
-		desc = &dma->desc[dma->cur_dma];
-		transfer_from_dma_buf(dev, s, desc->virt_addr,
-				      devpriv->ai_poll_ptr,
-				      poll - devpriv->ai_poll_ptr);
-		/* new buffer position */
-		devpriv->ai_poll_ptr = poll;
-
-		comedi_handle_events(dev, s);
-
-		ret = comedi_buf_n_bytes_ready(s);
-	} else {
-		/* no new samples */
-		ret = 0;
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	return ret;
-}
-
-static int pcl816_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct pcl816_private *devpriv = dev->private;
-
-	if (!devpriv->ai_cmd_running)
-		return 0;
-
-	outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
-	pcl816_ai_clear_eoc(dev);
-
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
-
-	devpriv->ai_cmd_running = 0;
-	devpriv->ai_cmd_canceled = 1;
-
-	return 0;
-}
-
-static int pcl816_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int ret = 0;
-	int i;
-
-	outb(PCL816_CTRL_SOFT_TRIG, dev->iobase + PCL816_CTRL_REG);
-
-	pcl816_ai_set_chan_range(dev, chan, range);
-	pcl816_ai_set_chan_scan(dev, chan, chan);
-
-	for (i = 0; i < insn->n; i++) {
-		pcl816_ai_clear_eoc(dev);
-		pcl816_ai_soft_trig(dev);
-
-		ret = comedi_timeout(dev, s, insn, pcl816_ai_eoc, 0);
-		if (ret)
-			break;
-
-		data[i] = pcl816_ai_get_sample(dev, s);
-	}
-	outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
-	pcl816_ai_clear_eoc(dev);
-
-	return ret ? ret : insn->n;
-}
-
-static int pcl816_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	data[1] = inb(dev->iobase + PCL816_DO_DI_LSB_REG) |
-		  (inb(dev->iobase + PCL816_DO_DI_MSB_REG) << 8);
-
-	return insn->n;
-}
-
-static int pcl816_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		outb(s->state & 0xff, dev->iobase + PCL816_DO_DI_LSB_REG);
-		outb((s->state >> 8), dev->iobase + PCL816_DO_DI_MSB_REG);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void pcl816_reset(struct comedi_device *dev)
-{
-	outb(PCL816_CTRL_DISABLE_TRIG, dev->iobase + PCL816_CTRL_REG);
-	pcl816_ai_set_chan_range(dev, 0, 0);
-	pcl816_ai_clear_eoc(dev);
-
-	/* set all digital outputs low */
-	outb(0, dev->iobase + PCL816_DO_DI_LSB_REG);
-	outb(0, dev->iobase + PCL816_DO_DI_MSB_REG);
-}
-
-static void pcl816_alloc_irq_and_dma(struct comedi_device *dev,
-				     struct comedi_devconfig *it)
-{
-	struct pcl816_private *devpriv = dev->private;
-	unsigned int irq_num = it->options[1];
-	unsigned int dma_chan = it->options[2];
-
-	/* only IRQs 2-7 and DMA channels 3 and 1 are valid */
-	if (!(irq_num >= 2 && irq_num <= 7) ||
-	    !(dma_chan == 3 || dma_chan == 1))
-		return;
-
-	if (request_irq(irq_num, pcl816_interrupt, 0, dev->board_name, dev))
-		return;
-
-	/* DMA uses two 16K buffers */
-	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan, dma_chan,
-					   PAGE_SIZE * 4, COMEDI_ISADMA_READ);
-	if (!devpriv->dma)
-		free_irq(irq_num, dev);
-	else
-		dev->irq = irq_num;
-}
-
-static void pcl816_free_dma(struct comedi_device *dev)
-{
-	struct pcl816_private *devpriv = dev->private;
-
-	if (devpriv)
-		comedi_isadma_free(devpriv->dma);
-}
-
-static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct pcl816_board *board = dev->board_ptr;
-	struct pcl816_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	/* an IRQ and DMA are required to support async commands */
-	pcl816_alloc_irq_and_dma(dev, it);
-
-	dev->pacer = comedi_8254_init(dev->iobase + PCL816_TIMER_BASE,
-				      I8254_OSC_BASE_10MHZ, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_CMD_READ | SDF_DIFF;
-	s->n_chan	= 16;
-	s->maxdata	= board->ai_maxdata;
-	s->range_table	= &range_pcl816;
-	s->insn_read	= pcl816_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= board->ai_chanlist;
-		s->do_cmdtest	= pcl816_ai_cmdtest;
-		s->do_cmd	= pcl816_ai_cmd;
-		s->poll		= pcl816_ai_poll;
-		s->cancel	= pcl816_ai_cancel;
-	}
-
-	/* Analog OUtput subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_UNUSED;
-#if 0
-	subdevs[1] = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
-	s->n_chan = 1;
-	s->maxdata = board->ao_maxdata;
-	s->range_table = &range_pcl816;
-#endif
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcl816_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcl816_do_insn_bits;
-
-	pcl816_reset(dev);
-
-	return 0;
-}
-
-static void pcl816_detach(struct comedi_device *dev)
-{
-	if (dev->private) {
-		pcl816_ai_cancel(dev, dev->read_subdev);
-		pcl816_reset(dev);
-	}
-	pcl816_free_dma(dev);
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver pcl816_driver = {
-	.driver_name	= "pcl816",
-	.module		= THIS_MODULE,
-	.attach		= pcl816_attach,
-	.detach		= pcl816_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.offset		= sizeof(struct pcl816_board),
-};
-module_comedi_driver(pcl816_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
deleted file mode 100644
index e1bdde977302..000000000000
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ /dev/null
@@ -1,1146 +0,0 @@
-/*
- * comedi/drivers/pcl818.c
- *
- * Driver: pcl818
- * Description: Advantech PCL-818 cards, PCL-718
- * Author: Michal Dobes <dobes@tesnet.cz>
- * Devices: [Advantech] PCL-818L (pcl818l), PCL-818H (pcl818h),
- *   PCL-818HD (pcl818hd), PCL-818HG (pcl818hg), PCL-818 (pcl818),
- *   PCL-718 (pcl718)
- * Status: works
- *
- * All cards have 16 SE/8 DIFF ADCs, one or two DACs, 16 DI and 16 DO.
- * Differences are only at maximal sample speed, range list and FIFO
- * support.
- * The driver support AI mode 0, 1, 3 other subdevices (AO, DI, DO) support
- * only mode 0. If DMA/FIFO/INT are disabled then AI support only mode 0.
- * PCL-818HD and PCL-818HG support 1kword FIFO. Driver support this FIFO
- * but this code is untested.
- * A word or two about DMA. Driver support DMA operations at two ways:
- * 1) DMA uses two buffers and after one is filled then is generated
- *    INT and DMA restart with second buffer. With this mode I'm unable run
- *    more that 80Ksamples/secs without data dropouts on K6/233.
- * 2) DMA uses one buffer and run in autoinit mode and the data are
- *    from DMA buffer moved on the fly with 2kHz interrupts from RTC.
- *    This mode is used if the interrupt 8 is available for allocation.
- *    If not, then first DMA mode is used. With this I can run at
- *    full speed one card (100ksamples/secs) or two cards with
- *    60ksamples/secs each (more is problem on account of ISA limitations).
- *    To use this mode you must have compiled  kernel with disabled
- *    "Enhanced Real Time Clock Support".
- *    Maybe you can have problems if you use xntpd or similar.
- *    If you've data dropouts with DMA mode 2 then:
- *     a) disable IDE DMA
- *     b) switch text mode console to fb.
- *
- *  Options for PCL-818L:
- *  [0] - IO Base
- *  [1] - IRQ        (0=disable, 2, 3, 4, 5, 6, 7)
- *  [2] - DMA        (0=disable, 1, 3)
- *  [3] - 0, 10=10MHz clock for 8254
- *            1= 1MHz clock for 8254
- *  [4] - 0,  5=A/D input  -5V.. +5V
- *        1, 10=A/D input -10V..+10V
- *  [5] - 0,  5=D/A output 0-5V  (internal reference -5V)
- *        1, 10=D/A output 0-10V (internal reference -10V)
- *        2    =D/A output unknown (external reference)
- *
- *  Options for PCL-818, PCL-818H:
- *  [0] - IO Base
- *  [1] - IRQ        (0=disable, 2, 3, 4, 5, 6, 7)
- *  [2] - DMA        (0=disable, 1, 3)
- *  [3] - 0, 10=10MHz clock for 8254
- *            1= 1MHz clock for 8254
- *  [4] - 0,  5=D/A output 0-5V  (internal reference -5V)
- *        1, 10=D/A output 0-10V (internal reference -10V)
- *        2    =D/A output unknown (external reference)
- *
- *  Options for PCL-818HD, PCL-818HG:
- *  [0] - IO Base
- *  [1] - IRQ        (0=disable, 2, 3, 4, 5, 6, 7)
- *  [2] - DMA/FIFO  (-1=use FIFO, 0=disable both FIFO and DMA,
- *                    1=use DMA ch 1, 3=use DMA ch 3)
- *  [3] - 0, 10=10MHz clock for 8254
- *            1= 1MHz clock for 8254
- *  [4] - 0,  5=D/A output 0-5V  (internal reference -5V)
- *        1, 10=D/A output 0-10V (internal reference -10V)
- *        2    =D/A output unknown (external reference)
- *
- *  Options for PCL-718:
- *  [0] - IO Base
- *  [1] - IRQ        (0=disable, 2, 3, 4, 5, 6, 7)
- *  [2] - DMA        (0=disable, 1, 3)
- *  [3] - 0, 10=10MHz clock for 8254
- *            1= 1MHz clock for 8254
- *  [4] -     0=A/D Range is +/-10V
- *            1=             +/-5V
- *            2=             +/-2.5V
- *            3=             +/-1V
- *            4=             +/-0.5V
- *            5=             user defined bipolar
- *            6=             0-10V
- *            7=             0-5V
- *            8=             0-2V
- *            9=             0-1V
- *           10=             user defined unipolar
- *  [5] - 0,  5=D/A outputs 0-5V  (internal reference -5V)
- *        1, 10=D/A outputs 0-10V (internal reference -10V)
- *            2=D/A outputs unknown (external reference)
- *  [6] - 0, 60=max  60kHz A/D sampling
- *        1,100=max 100kHz A/D sampling (PCL-718 with Option 001 installed)
- *
- */
-
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#include "comedi_isadma.h"
-#include "comedi_8254.h"
-
-/* boards constants */
-
-#define boardPCL818L 0
-#define boardPCL818H 1
-#define boardPCL818HD 2
-#define boardPCL818HG 3
-#define boardPCL818 4
-#define boardPCL718 5
-
-/*
- * Register I/O map
- */
-#define PCL818_AI_LSB_REG			0x00
-#define PCL818_AI_MSB_REG			0x01
-#define PCL818_RANGE_REG			0x01
-#define PCL818_MUX_REG				0x02
-#define PCL818_MUX_SCAN(_first, _last)		(((_last) << 4) | (_first))
-#define PCL818_DO_DI_LSB_REG			0x03
-#define PCL818_AO_LSB_REG(x)			(0x04 + ((x) * 2))
-#define PCL818_AO_MSB_REG(x)			(0x05 + ((x) * 2))
-#define PCL818_STATUS_REG			0x08
-#define PCL818_STATUS_NEXT_CHAN_MASK		(0xf << 0)
-#define PCL818_STATUS_INT			(1 << 4)
-#define PCL818_STATUS_MUX			(1 << 5)
-#define PCL818_STATUS_UNI			(1 << 6)
-#define PCL818_STATUS_EOC			(1 << 7)
-#define PCL818_CTRL_REG				0x09
-#define PCL818_CTRL_DISABLE_TRIG		(0 << 0)
-#define PCL818_CTRL_SOFT_TRIG			(1 << 0)
-#define PCL818_CTRL_EXT_TRIG			(2 << 0)
-#define PCL818_CTRL_PACER_TRIG			(3 << 0)
-#define PCL818_CTRL_DMAE			(1 << 2)
-#define PCL818_CTRL_IRQ(x)			((x) << 4)
-#define PCL818_CTRL_INTE			(1 << 7)
-#define PCL818_CNTENABLE_REG			0x0a
-#define PCL818_CNTENABLE_PACER_ENA		(0 << 0)
-#define PCL818_CNTENABLE_PACER_TRIG0		(1 << 0)
-#define PCL818_CNTENABLE_CNT0_EXT_CLK		(0 << 1)
-#define PCL818_CNTENABLE_CNT0_INT_CLK		(1 << 1)
-#define PCL818_DO_DI_MSB_REG			0x0b
-#define PCL818_TIMER_BASE			0x0c
-
-/* W: fifo enable/disable */
-#define PCL818_FI_ENABLE 6
-/* W: fifo interrupt clear */
-#define PCL818_FI_INTCLR 20
-/* W: fifo interrupt clear */
-#define PCL818_FI_FLUSH 25
-/* R: fifo status */
-#define PCL818_FI_STATUS 25
-/* R: one record from FIFO */
-#define PCL818_FI_DATALO 23
-#define PCL818_FI_DATAHI 24
-
-#define MAGIC_DMA_WORD 0x5a5a
-
-static const struct comedi_lrange range_pcl818h_ai = {
-	9, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625),
-		UNI_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(2.5),
-		UNI_RANGE(1.25),
-		BIP_RANGE(10)
-	}
-};
-
-static const struct comedi_lrange range_pcl818hg_ai = {
-	10, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.005),
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.01),
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_pcl818l_l_ai = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25),
-		BIP_RANGE(0.625)
-	}
-};
-
-static const struct comedi_lrange range_pcl818l_h_ai = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-
-static const struct comedi_lrange range718_bipolar1 = {
-	1, {
-		BIP_RANGE(1)
-	}
-};
-
-static const struct comedi_lrange range718_bipolar0_5 = {
-	1, {
-		BIP_RANGE(0.5)
-	}
-};
-
-static const struct comedi_lrange range718_unipolar2 = {
-	1, {
-		UNI_RANGE(2)
-	}
-};
-
-static const struct comedi_lrange range718_unipolar1 = {
-	1, {
-		BIP_RANGE(1)
-	}
-};
-
-struct pcl818_board {
-	const char *name;
-	unsigned int ns_min;
-	int n_aochan;
-	const struct comedi_lrange *ai_range_type;
-	unsigned int has_dma:1;
-	unsigned int has_fifo:1;
-	unsigned int is_818:1;
-};
-
-static const struct pcl818_board boardtypes[] = {
-	{
-		.name		= "pcl818l",
-		.ns_min		= 25000,
-		.n_aochan	= 1,
-		.ai_range_type	= &range_pcl818l_l_ai,
-		.has_dma	= 1,
-		.is_818		= 1,
-	}, {
-		.name		= "pcl818h",
-		.ns_min		= 10000,
-		.n_aochan	= 1,
-		.ai_range_type	= &range_pcl818h_ai,
-		.has_dma	= 1,
-		.is_818		= 1,
-	}, {
-		.name		= "pcl818hd",
-		.ns_min		= 10000,
-		.n_aochan	= 1,
-		.ai_range_type	= &range_pcl818h_ai,
-		.has_dma	= 1,
-		.has_fifo	= 1,
-		.is_818		= 1,
-	}, {
-		.name		= "pcl818hg",
-		.ns_min		= 10000,
-		.n_aochan	= 1,
-		.ai_range_type	= &range_pcl818hg_ai,
-		.has_dma	= 1,
-		.has_fifo	= 1,
-		.is_818		= 1,
-	}, {
-		.name		= "pcl818",
-		.ns_min		= 10000,
-		.n_aochan	= 2,
-		.ai_range_type	= &range_pcl818h_ai,
-		.has_dma	= 1,
-		.is_818		= 1,
-	}, {
-		.name		= "pcl718",
-		.ns_min		= 16000,
-		.n_aochan	= 2,
-		.ai_range_type	= &range_unipolar5,
-		.has_dma	= 1,
-	}, {
-		.name		= "pcm3718",
-		.ns_min		= 10000,
-		.ai_range_type	= &range_pcl818h_ai,
-		.has_dma	= 1,
-		.is_818		= 1,
-	},
-};
-
-struct pcl818_private {
-	struct comedi_isadma *dma;
-	/*  manimal allowed delay between samples (in us) for actual card */
-	unsigned int ns_min;
-	/*  MUX setting for actual AI operations */
-	unsigned int act_chanlist[16];
-	unsigned int act_chanlist_len;	/*  how long is actual MUX list */
-	unsigned int act_chanlist_pos;	/*  actual position in MUX list */
-	unsigned int usefifo:1;
-	unsigned int ai_cmd_running:1;
-	unsigned int ai_cmd_canceled:1;
-};
-
-static void pcl818_ai_setup_dma(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				unsigned int unread_samples)
-{
-	struct pcl818_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned int max_samples = comedi_bytes_to_samples(s, desc->maxsize);
-	unsigned int nsamples;
-
-	comedi_isadma_disable(dma->chan);
-
-	/*
-	 * Determine dma size based on the buffer maxsize plus the number of
-	 * unread samples and the number of samples remaining in the command.
-	 */
-	nsamples = comedi_nsamples_left(s, max_samples + unread_samples);
-	if (nsamples > unread_samples) {
-		nsamples -= unread_samples;
-		desc->size = comedi_samples_to_bytes(s, nsamples);
-		comedi_isadma_program(desc);
-	}
-}
-
-static void pcl818_ai_set_chan_range(struct comedi_device *dev,
-				     unsigned int chan,
-				     unsigned int range)
-{
-	outb(chan, dev->iobase + PCL818_MUX_REG);
-	outb(range, dev->iobase + PCL818_RANGE_REG);
-}
-
-static void pcl818_ai_set_chan_scan(struct comedi_device *dev,
-				    unsigned int first_chan,
-				    unsigned int last_chan)
-{
-	outb(PCL818_MUX_SCAN(first_chan, last_chan),
-	     dev->iobase + PCL818_MUX_REG);
-}
-
-static void pcl818_ai_setup_chanlist(struct comedi_device *dev,
-				     unsigned int *chanlist,
-				     unsigned int seglen)
-{
-	struct pcl818_private *devpriv = dev->private;
-	unsigned int first_chan = CR_CHAN(chanlist[0]);
-	unsigned int last_chan;
-	unsigned int range;
-	int i;
-
-	devpriv->act_chanlist_len = seglen;
-	devpriv->act_chanlist_pos = 0;
-
-	/* store range list to card */
-	for (i = 0; i < seglen; i++) {
-		last_chan = CR_CHAN(chanlist[i]);
-		range = CR_RANGE(chanlist[i]);
-
-		devpriv->act_chanlist[i] = last_chan;
-
-		pcl818_ai_set_chan_range(dev, last_chan, range);
-	}
-
-	udelay(1);
-
-	pcl818_ai_set_chan_scan(dev, first_chan, last_chan);
-}
-
-static void pcl818_ai_clear_eoc(struct comedi_device *dev)
-{
-	/* writing any value clears the interrupt request */
-	outb(0, dev->iobase + PCL818_STATUS_REG);
-}
-
-static void pcl818_ai_soft_trig(struct comedi_device *dev)
-{
-	/* writing any value triggers a software conversion */
-	outb(0, dev->iobase + PCL818_AI_LSB_REG);
-}
-
-static unsigned int pcl818_ai_get_fifo_sample(struct comedi_device *dev,
-					      struct comedi_subdevice *s,
-					      unsigned int *chan)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + PCL818_FI_DATALO);
-	val |= (inb(dev->iobase + PCL818_FI_DATAHI) << 8);
-
-	if (chan)
-		*chan = val & 0xf;
-
-	return (val >> 4) & s->maxdata;
-}
-
-static unsigned int pcl818_ai_get_sample(struct comedi_device *dev,
-					 struct comedi_subdevice *s,
-					 unsigned int *chan)
-{
-	unsigned int val;
-
-	val = inb(dev->iobase + PCL818_AI_MSB_REG) << 8;
-	val |= inb(dev->iobase + PCL818_AI_LSB_REG);
-
-	if (chan)
-		*chan = val & 0xf;
-
-	return (val >> 4) & s->maxdata;
-}
-
-static int pcl818_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + PCL818_STATUS_REG);
-	if (status & PCL818_STATUS_INT)
-		return 0;
-	return -EBUSY;
-}
-
-static bool pcl818_ai_write_sample(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int chan, unsigned int val)
-{
-	struct pcl818_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int expected_chan;
-
-	expected_chan = devpriv->act_chanlist[devpriv->act_chanlist_pos];
-	if (chan != expected_chan) {
-		dev_dbg(dev->class_dev,
-			"A/D mode1/3 %s - channel dropout %d!=%d !\n",
-			(devpriv->dma) ? "DMA" :
-			(devpriv->usefifo) ? "FIFO" : "IRQ",
-			chan, expected_chan);
-		s->async->events |= COMEDI_CB_ERROR;
-		return false;
-	}
-
-	comedi_buf_write_samples(s, &val, 1);
-
-	devpriv->act_chanlist_pos++;
-	if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len)
-		devpriv->act_chanlist_pos = 0;
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg) {
-		s->async->events |= COMEDI_CB_EOA;
-		return false;
-	}
-
-	return true;
-}
-
-static void pcl818_handle_eoc(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	unsigned int chan;
-	unsigned int val;
-
-	if (pcl818_ai_eoc(dev, s, NULL, 0)) {
-		dev_err(dev->class_dev, "A/D mode1/3 IRQ without DRDY!\n");
-		s->async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-
-	val = pcl818_ai_get_sample(dev, s, &chan);
-	pcl818_ai_write_sample(dev, s, chan, val);
-}
-
-static void pcl818_handle_dma(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct pcl818_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_isadma_desc *desc = &dma->desc[dma->cur_dma];
-	unsigned short *ptr = desc->virt_addr;
-	unsigned int nsamples = comedi_bytes_to_samples(s, desc->size);
-	unsigned int chan;
-	unsigned int val;
-	int i;
-
-	/* restart dma with the next buffer */
-	dma->cur_dma = 1 - dma->cur_dma;
-	pcl818_ai_setup_dma(dev, s, nsamples);
-
-	for (i = 0; i < nsamples; i++) {
-		val = ptr[i];
-		chan = val & 0xf;
-		val = (val >> 4) & s->maxdata;
-		if (!pcl818_ai_write_sample(dev, s, chan, val))
-			break;
-	}
-}
-
-static void pcl818_handle_fifo(struct comedi_device *dev,
-			       struct comedi_subdevice *s)
-{
-	unsigned int status;
-	unsigned int chan;
-	unsigned int val;
-	int i, len;
-
-	status = inb(dev->iobase + PCL818_FI_STATUS);
-
-	if (status & 4) {
-		dev_err(dev->class_dev, "A/D mode1/3 FIFO overflow!\n");
-		s->async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-
-	if (status & 1) {
-		dev_err(dev->class_dev,
-			"A/D mode1/3 FIFO interrupt without data!\n");
-		s->async->events |= COMEDI_CB_ERROR;
-		return;
-	}
-
-	if (status & 2)
-		len = 512;
-	else
-		len = 0;
-
-	for (i = 0; i < len; i++) {
-		val = pcl818_ai_get_fifo_sample(dev, s, &chan);
-		if (!pcl818_ai_write_sample(dev, s, chan, val))
-			break;
-	}
-}
-
-static irqreturn_t pcl818_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct pcl818_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (!dev->attached || !devpriv->ai_cmd_running) {
-		pcl818_ai_clear_eoc(dev);
-		return IRQ_HANDLED;
-	}
-
-	if (devpriv->ai_cmd_canceled) {
-		/*
-		 * The cleanup from ai_cancel() has been delayed
-		 * until now because the card doesn't seem to like
-		 * being reprogrammed while a DMA transfer is in
-		 * progress.
-		 */
-		s->async->scans_done = cmd->stop_arg;
-		s->cancel(dev, s);
-		return IRQ_HANDLED;
-	}
-
-	if (devpriv->dma)
-		pcl818_handle_dma(dev, s);
-	else if (devpriv->usefifo)
-		pcl818_handle_fifo(dev, s);
-	else
-		pcl818_handle_eoc(dev, s);
-
-	pcl818_ai_clear_eoc(dev);
-
-	comedi_handle_events(dev, s);
-	return IRQ_HANDLED;
-}
-
-static int check_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      unsigned int *chanlist, unsigned int n_chan)
-{
-	unsigned int chansegment[16];
-	unsigned int i, nowmustbechan, seglen, segpos;
-
-	/* correct channel and range number check itself comedi/range.c */
-	if (n_chan < 1) {
-		dev_err(dev->class_dev, "range/channel list is empty!\n");
-		return 0;
-	}
-
-	if (n_chan > 1) {
-		/*  first channel is every time ok */
-		chansegment[0] = chanlist[0];
-		/*  build part of chanlist */
-		for (i = 1, seglen = 1; i < n_chan; i++, seglen++) {
-			/* we detect loop, this must by finish */
-
-			if (chanlist[0] == chanlist[i])
-				break;
-			nowmustbechan =
-			    (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan;
-			if (nowmustbechan != CR_CHAN(chanlist[i])) {
-				/*  channel list isn't continuous :-( */
-				dev_dbg(dev->class_dev,
-					"channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
-					i, CR_CHAN(chanlist[i]), nowmustbechan,
-					CR_CHAN(chanlist[0]));
-				return 0;
-			}
-			/*  well, this is next correct channel in list */
-			chansegment[i] = chanlist[i];
-		}
-
-		/*  check whole chanlist */
-		for (i = 0, segpos = 0; i < n_chan; i++) {
-			if (chanlist[i] != chansegment[i % seglen]) {
-				dev_dbg(dev->class_dev,
-					"bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
-					i, CR_CHAN(chansegment[i]),
-					CR_RANGE(chansegment[i]),
-					CR_AREF(chansegment[i]),
-					CR_CHAN(chanlist[i % seglen]),
-					CR_RANGE(chanlist[i % seglen]),
-					CR_AREF(chansegment[i % seglen]));
-				return 0;	/*  chan/gain list is strange */
-			}
-		}
-	} else {
-		seglen = 1;
-	}
-	return seglen;
-}
-
-static int check_single_ended(unsigned int port)
-{
-	if (inb(port + PCL818_STATUS_REG) & PCL818_STATUS_MUX)
-		return 1;
-	return 0;
-}
-
-static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
-		      struct comedi_cmd *cmd)
-{
-	const struct pcl818_board *board = dev->board_ptr;
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    board->ns_min);
-	} else {	/* TRIG_EXT */
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		unsigned int arg = cmd->convert_arg;
-
-		comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	/* step 5: complain about special chanlist considerations */
-
-	if (cmd->chanlist) {
-		if (!check_channel_list(dev, s, cmd->chanlist,
-					cmd->chanlist_len))
-			return 5;	/*  incorrect channels list */
-	}
-
-	return 0;
-}
-
-static int pcl818_ai_cmd(struct comedi_device *dev,
-			 struct comedi_subdevice *s)
-{
-	struct pcl818_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int ctrl = 0;
-	unsigned int seglen;
-
-	if (devpriv->ai_cmd_running)
-		return -EBUSY;
-
-	seglen = check_channel_list(dev, s, cmd->chanlist, cmd->chanlist_len);
-	if (seglen < 1)
-		return -EINVAL;
-	pcl818_ai_setup_chanlist(dev, cmd->chanlist, seglen);
-
-	devpriv->ai_cmd_running = 1;
-	devpriv->ai_cmd_canceled = 0;
-	devpriv->act_chanlist_pos = 0;
-
-	if (cmd->convert_src == TRIG_TIMER)
-		ctrl |= PCL818_CTRL_PACER_TRIG;
-	else
-		ctrl |= PCL818_CTRL_EXT_TRIG;
-
-	outb(PCL818_CNTENABLE_PACER_ENA, dev->iobase + PCL818_CNTENABLE_REG);
-
-	if (dma) {
-		/* setup and enable dma for the first buffer */
-		dma->cur_dma = 0;
-		pcl818_ai_setup_dma(dev, s, 0);
-
-		ctrl |= PCL818_CTRL_INTE | PCL818_CTRL_IRQ(dev->irq) |
-			PCL818_CTRL_DMAE;
-	} else if (devpriv->usefifo) {
-		/* enable FIFO */
-		outb(1, dev->iobase + PCL818_FI_ENABLE);
-	} else {
-		ctrl |= PCL818_CTRL_INTE | PCL818_CTRL_IRQ(dev->irq);
-	}
-	outb(ctrl, dev->iobase + PCL818_CTRL_REG);
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		comedi_8254_update_divisors(dev->pacer);
-		comedi_8254_pacer_enable(dev->pacer, 1, 2, true);
-	}
-
-	return 0;
-}
-
-static int pcl818_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct pcl818_private *devpriv = dev->private;
-	struct comedi_isadma *dma = devpriv->dma;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (!devpriv->ai_cmd_running)
-		return 0;
-
-	if (dma) {
-		if (cmd->stop_src == TRIG_NONE ||
-		    (cmd->stop_src == TRIG_COUNT &&
-		     s->async->scans_done < cmd->stop_arg)) {
-			if (!devpriv->ai_cmd_canceled) {
-				/*
-				* Wait for running dma transfer to end,
-				* do cleanup in interrupt.
-				*/
-				devpriv->ai_cmd_canceled = 1;
-				return 0;
-			}
-		}
-		comedi_isadma_disable(dma->chan);
-	}
-
-	outb(PCL818_CTRL_DISABLE_TRIG, dev->iobase + PCL818_CTRL_REG);
-	comedi_8254_pacer_enable(dev->pacer, 1, 2, false);
-	pcl818_ai_clear_eoc(dev);
-
-	if (devpriv->usefifo) {	/*  FIFO shutdown */
-		outb(0, dev->iobase + PCL818_FI_INTCLR);
-		outb(0, dev->iobase + PCL818_FI_FLUSH);
-		outb(0, dev->iobase + PCL818_FI_ENABLE);
-	}
-	devpriv->ai_cmd_running = 0;
-	devpriv->ai_cmd_canceled = 0;
-
-	return 0;
-}
-
-static int pcl818_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int ret = 0;
-	int i;
-
-	outb(PCL818_CTRL_SOFT_TRIG, dev->iobase + PCL818_CTRL_REG);
-
-	pcl818_ai_set_chan_range(dev, chan, range);
-	pcl818_ai_set_chan_scan(dev, chan, chan);
-
-	for (i = 0; i < insn->n; i++) {
-		pcl818_ai_clear_eoc(dev);
-		pcl818_ai_soft_trig(dev);
-
-		ret = comedi_timeout(dev, s, insn, pcl818_ai_eoc, 0);
-		if (ret)
-			break;
-
-		data[i] = pcl818_ai_get_sample(dev, s, NULL);
-	}
-	pcl818_ai_clear_eoc(dev);
-
-	return ret ? ret : insn->n;
-}
-
-static int pcl818_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outb((val & 0x000f) << 4,
-		     dev->iobase + PCL818_AO_LSB_REG(chan));
-		outb((val & 0x0ff0) >> 4,
-		     dev->iobase + PCL818_AO_MSB_REG(chan));
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pcl818_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	data[1] = inb(dev->iobase + PCL818_DO_DI_LSB_REG) |
-		  (inb(dev->iobase + PCL818_DO_DI_MSB_REG) << 8);
-
-	return insn->n;
-}
-
-static int pcl818_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		outb(s->state & 0xff, dev->iobase + PCL818_DO_DI_LSB_REG);
-		outb((s->state >> 8), dev->iobase + PCL818_DO_DI_MSB_REG);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static void pcl818_reset(struct comedi_device *dev)
-{
-	const struct pcl818_board *board = dev->board_ptr;
-	unsigned int chan;
-
-	/* flush and disable the FIFO */
-	if (board->has_fifo) {
-		outb(0, dev->iobase + PCL818_FI_INTCLR);
-		outb(0, dev->iobase + PCL818_FI_FLUSH);
-		outb(0, dev->iobase + PCL818_FI_ENABLE);
-	}
-
-	/* disable analog input trigger */
-	outb(PCL818_CTRL_DISABLE_TRIG, dev->iobase + PCL818_CTRL_REG);
-	pcl818_ai_clear_eoc(dev);
-
-	pcl818_ai_set_chan_range(dev, 0, 0);
-
-	/* stop pacer */
-	outb(PCL818_CNTENABLE_PACER_ENA, dev->iobase + PCL818_CNTENABLE_REG);
-
-	/* set analog output channels to 0V */
-	for (chan = 0; chan < board->n_aochan; chan++) {
-		outb(0, dev->iobase + PCL818_AO_LSB_REG(chan));
-		outb(0, dev->iobase + PCL818_AO_MSB_REG(chan));
-	}
-
-	/* set all digital outputs low */
-	outb(0, dev->iobase + PCL818_DO_DI_MSB_REG);
-	outb(0, dev->iobase + PCL818_DO_DI_LSB_REG);
-}
-
-static void pcl818_set_ai_range_table(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct comedi_devconfig *it)
-{
-	const struct pcl818_board *board = dev->board_ptr;
-
-	/* default to the range table from the boardinfo */
-	s->range_table = board->ai_range_type;
-
-	/* now check the user config option based on the boardtype */
-	if (board->is_818) {
-		if (it->options[4] == 1 || it->options[4] == 10) {
-			/* secondary range list jumper selectable */
-			s->range_table = &range_pcl818l_h_ai;
-		}
-	} else {
-		switch (it->options[4]) {
-		case 0:
-			s->range_table = &range_bipolar10;
-			break;
-		case 1:
-			s->range_table = &range_bipolar5;
-			break;
-		case 2:
-			s->range_table = &range_bipolar2_5;
-			break;
-		case 3:
-			s->range_table = &range718_bipolar1;
-			break;
-		case 4:
-			s->range_table = &range718_bipolar0_5;
-			break;
-		case 6:
-			s->range_table = &range_unipolar10;
-			break;
-		case 7:
-			s->range_table = &range_unipolar5;
-			break;
-		case 8:
-			s->range_table = &range718_unipolar2;
-			break;
-		case 9:
-			s->range_table = &range718_unipolar1;
-			break;
-		default:
-			s->range_table = &range_unknown;
-			break;
-		}
-	}
-}
-
-static void pcl818_alloc_dma(struct comedi_device *dev, unsigned int dma_chan)
-{
-	struct pcl818_private *devpriv = dev->private;
-
-	/* only DMA channels 3 and 1 are valid */
-	if (!(dma_chan == 3 || dma_chan == 1))
-		return;
-
-	/* DMA uses two 16K buffers */
-	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan, dma_chan,
-					   PAGE_SIZE * 4, COMEDI_ISADMA_READ);
-}
-
-static void pcl818_free_dma(struct comedi_device *dev)
-{
-	struct pcl818_private *devpriv = dev->private;
-
-	if (devpriv)
-		comedi_isadma_free(devpriv->dma);
-}
-
-static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct pcl818_board *board = dev->board_ptr;
-	struct pcl818_private *devpriv;
-	struct comedi_subdevice *s;
-	unsigned int osc_base;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0],
-				    board->has_fifo ? 0x20 : 0x10);
-	if (ret)
-		return ret;
-
-	/* we can use IRQ 2-7 for async command support */
-	if (it->options[1] >= 2 && it->options[1] <= 7) {
-		ret = request_irq(it->options[1], pcl818_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	/* should we use the FIFO? */
-	if (dev->irq && board->has_fifo && it->options[2] == -1)
-		devpriv->usefifo = 1;
-
-	/* we need an IRQ to do DMA on channel 3 or 1 */
-	if (dev->irq && board->has_dma)
-		pcl818_alloc_dma(dev, it->options[2]);
-
-	/* use 1MHz or 10MHz oscilator */
-	if ((it->options[3] == 0) || (it->options[3] == 10))
-		osc_base = I8254_OSC_BASE_10MHZ;
-	else
-		osc_base = I8254_OSC_BASE_1MHZ;
-
-	dev->pacer = comedi_8254_init(dev->iobase + PCL818_TIMER_BASE,
-				      osc_base, I8254_IO8, 0);
-	if (!dev->pacer)
-		return -ENOMEM;
-
-	/* max sampling speed */
-	devpriv->ns_min = board->ns_min;
-	if (!board->is_818) {
-		/* extended PCL718 to 100kHz DAC */
-		if ((it->options[6] == 1) || (it->options[6] == 100))
-			devpriv->ns_min = 10000;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE;
-	if (check_single_ended(dev->iobase)) {
-		s->n_chan	= 16;
-		s->subdev_flags	|= SDF_COMMON | SDF_GROUND;
-	} else {
-		s->n_chan	= 8;
-		s->subdev_flags	|= SDF_DIFF;
-	}
-	s->maxdata	= 0x0fff;
-
-	pcl818_set_ai_range_table(dev, s, it);
-
-	s->insn_read	= pcl818_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->len_chanlist	= s->n_chan;
-		s->do_cmdtest	= ai_cmdtest;
-		s->do_cmd	= pcl818_ai_cmd;
-		s->cancel	= pcl818_ai_cancel;
-	}
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	if (board->n_aochan) {
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
-		s->n_chan	= board->n_aochan;
-		s->maxdata	= 0x0fff;
-		s->range_table	= &range_unipolar5;
-		if (board->is_818) {
-			if ((it->options[4] == 1) || (it->options[4] == 10))
-				s->range_table = &range_unipolar10;
-			if (it->options[4] == 2)
-				s->range_table = &range_unknown;
-		} else {
-			if ((it->options[5] == 1) || (it->options[5] == 10))
-				s->range_table = &range_unipolar10;
-			if (it->options[5] == 2)
-				s->range_table = &range_unknown;
-		}
-		s->insn_write	= pcl818_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	/* Digital Input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcl818_di_insn_bits;
-
-	/* Digital Output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcl818_do_insn_bits;
-
-	pcl818_reset(dev);
-
-	return 0;
-}
-
-static void pcl818_detach(struct comedi_device *dev)
-{
-	struct pcl818_private *devpriv = dev->private;
-
-	if (devpriv) {
-		pcl818_ai_cancel(dev, dev->read_subdev);
-		pcl818_reset(dev);
-	}
-	pcl818_free_dma(dev);
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver pcl818_driver = {
-	.driver_name	= "pcl818",
-	.module		= THIS_MODULE,
-	.attach		= pcl818_attach,
-	.detach		= pcl818_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
-	.offset		= sizeof(struct pcl818_board),
-};
-module_comedi_driver(pcl818_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcm3724.c b/drivers/staging/comedi/drivers/pcm3724.c
deleted file mode 100644
index 6176dfa24801..000000000000
--- a/drivers/staging/comedi/drivers/pcm3724.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
-    comedi/drivers/pcm724.c
-
-    Drew Csillag <drew_csillag@yahoo.com>
-
-    hardware driver for Advantech card:
-     card:   PCM-3724
-     driver: pcm3724
-
-    Options for PCM-3724
-     [0] - IO Base
-*/
-/*
-Driver: pcm3724
-Description: Advantech PCM-3724
-Author: Drew Csillag <drew_csillag@yahoo.com>
-Devices: [Advantech] PCM-3724 (pcm724)
-Status: tested
-
-This is driver for digital I/O boards PCM-3724 with 48 DIO.
-It needs 8255.o for operations and only immediate mode is supported.
-See the source for configuration details.
-
-Copy/pasted/hacked from pcm724.c
-*/
-/*
- * check_driver overrides:
- *   struct comedi_insn
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include "8255.h"
-
-#define BUF_C0 0x1
-#define BUF_B0 0x2
-#define BUF_A0 0x4
-#define BUF_C1 0x8
-#define BUF_B1 0x10
-#define BUF_A1 0x20
-
-#define GATE_A0 0x4
-#define GATE_B0	0x2
-#define GATE_C0	0x1
-#define GATE_A1	0x20
-#define GATE_B1	0x10
-#define GATE_C1 0x8
-
-/* used to track configured dios */
-struct priv_pcm3724 {
-	int dio_1;
-	int dio_2;
-};
-
-static int compute_buffer(int config, int devno, struct comedi_subdevice *s)
-{
-	/* 1 in io_bits indicates output */
-	if (s->io_bits & 0x0000ff) {
-		if (devno == 0)
-			config |= BUF_A0;
-		else
-			config |= BUF_A1;
-	}
-	if (s->io_bits & 0x00ff00) {
-		if (devno == 0)
-			config |= BUF_B0;
-		else
-			config |= BUF_B1;
-	}
-	if (s->io_bits & 0xff0000) {
-		if (devno == 0)
-			config |= BUF_C0;
-		else
-			config |= BUF_C1;
-	}
-	return config;
-}
-
-static void do_3724_config(struct comedi_device *dev,
-			   struct comedi_subdevice *s, int chanspec)
-{
-	struct comedi_subdevice *s_dio1 = &dev->subdevices[0];
-	struct comedi_subdevice *s_dio2 = &dev->subdevices[1];
-	int config;
-	int buffer_config;
-	unsigned long port_8255_cfg;
-
-	config = I8255_CTRL_CW;
-	buffer_config = 0;
-
-	/* 1 in io_bits indicates output, 1 in config indicates input */
-	if (!(s->io_bits & 0x0000ff))
-		config |= I8255_CTRL_A_IO;
-
-	if (!(s->io_bits & 0x00ff00))
-		config |= I8255_CTRL_B_IO;
-
-	if (!(s->io_bits & 0xff0000))
-		config |= I8255_CTRL_C_HI_IO | I8255_CTRL_C_LO_IO;
-
-	buffer_config = compute_buffer(0, 0, s_dio1);
-	buffer_config = compute_buffer(buffer_config, 1, s_dio2);
-
-	if (s == s_dio1)
-		port_8255_cfg = dev->iobase + I8255_CTRL_REG;
-	else
-		port_8255_cfg = dev->iobase + I8255_SIZE + I8255_CTRL_REG;
-
-	outb(buffer_config, dev->iobase + 8);	/* update buffer register */
-
-	outb(config, port_8255_cfg);
-}
-
-static void enable_chan(struct comedi_device *dev, struct comedi_subdevice *s,
-			int chanspec)
-{
-	struct priv_pcm3724 *priv = dev->private;
-	struct comedi_subdevice *s_dio1 = &dev->subdevices[0];
-	unsigned int mask;
-	int gatecfg;
-
-	gatecfg = 0;
-
-	mask = 1 << CR_CHAN(chanspec);
-	if (s == s_dio1)
-		priv->dio_1 |= mask;
-	else
-		priv->dio_2 |= mask;
-
-	if (priv->dio_1 & 0xff0000)
-		gatecfg |= GATE_C0;
-
-	if (priv->dio_1 & 0xff00)
-		gatecfg |= GATE_B0;
-
-	if (priv->dio_1 & 0xff)
-		gatecfg |= GATE_A0;
-
-	if (priv->dio_2 & 0xff0000)
-		gatecfg |= GATE_C1;
-
-	if (priv->dio_2 & 0xff00)
-		gatecfg |= GATE_B1;
-
-	if (priv->dio_2 & 0xff)
-		gatecfg |= GATE_A1;
-
-	outb(gatecfg, dev->iobase + 9);
-}
-
-/* overriding the 8255 insn config */
-static int subdev_3724_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 8)
-		mask = 0x0000ff;
-	else if (chan < 16)
-		mask = 0x00ff00;
-	else if (chan < 20)
-		mask = 0x0f0000;
-	else
-		mask = 0xf00000;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	do_3724_config(dev, s, insn->chanspec);
-	enable_chan(dev, s, insn->chanspec);
-
-	return insn->n;
-}
-
-static int pcm3724_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct priv_pcm3724 *priv;
-	struct comedi_subdevice *s;
-	int ret, i;
-
-	priv = comedi_alloc_devpriv(dev, sizeof(*priv));
-	if (!priv)
-		return -ENOMEM;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 2);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		ret = subdev_8255_init(dev, s, NULL, i * I8255_SIZE);
-		if (ret)
-			return ret;
-		s->insn_config = subdev_3724_insn_config;
-	}
-	return 0;
-}
-
-static struct comedi_driver pcm3724_driver = {
-	.driver_name	= "pcm3724",
-	.module		= THIS_MODULE,
-	.attach		= pcm3724_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(pcm3724_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcmad.c b/drivers/staging/comedi/drivers/pcmad.c
deleted file mode 100644
index 12f94fe82f5b..000000000000
--- a/drivers/staging/comedi/drivers/pcmad.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * pcmad.c
- * Hardware driver for Winsystems PCM-A/D12 and PCM-A/D16
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000,2001 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: pcmad
- * Description: Winsystems PCM-A/D12, PCM-A/D16
- * Devices: [Winsystems] PCM-A/D12 (pcmad12), PCM-A/D16 (pcmad16)
- * Author: ds
- * Status: untested
- *
- * This driver was written on a bet that I couldn't write a driver
- * in less than 2 hours.  I won the bet, but never got paid.  =(
- *
- * Configuration options:
- *   [0] - I/O port base
- *   [1] - IRQ (unused)
- *   [2] - Analog input reference (must match jumpers)
- *	   0 = single-ended (16 channels)
- *	   1 = differential (8 channels)
- *   [3] - Analog input encoding (must match jumpers)
- *	   0 = straight binary (0-5V input range)
- *	   1 = two's complement (+-10V input range)
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#define PCMAD_STATUS		0
-#define PCMAD_LSB		1
-#define PCMAD_MSB		2
-#define PCMAD_CONVERT		1
-
-struct pcmad_board_struct {
-	const char *name;
-	unsigned int ai_maxdata;
-};
-
-static const struct pcmad_board_struct pcmad_boards[] = {
-	{
-		.name		= "pcmad12",
-		.ai_maxdata	= 0x0fff,
-	}, {
-		.name		= "pcmad16",
-		.ai_maxdata	= 0xffff,
-	},
-};
-
-static int pcmad_ai_eoc(struct comedi_device *dev,
-			struct comedi_subdevice *s,
-			struct comedi_insn *insn,
-			unsigned long context)
-{
-	unsigned int status;
-
-	status = inb(dev->iobase + PCMAD_STATUS);
-	if ((status & 0x3) == 0x3)
-		return 0;
-	return -EBUSY;
-}
-
-static int pcmad_ai_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int ret;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		outb(chan, dev->iobase + PCMAD_CONVERT);
-
-		ret = comedi_timeout(dev, s, insn, pcmad_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		val = inb(dev->iobase + PCMAD_LSB) |
-		      (inb(dev->iobase + PCMAD_MSB) << 8);
-
-		/* data is shifted on the pcmad12, fix it */
-		if (s->maxdata == 0x0fff)
-			val >>= 4;
-
-		if (comedi_range_is_bipolar(s, range)) {
-			/* munge the two's complement value */
-			val ^= ((s->maxdata + 1) >> 1);
-		}
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct pcmad_board_struct *board = dev->board_ptr;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x04);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	if (it->options[1]) {
-		/* 8 differential channels */
-		s->subdev_flags	= SDF_READABLE | AREF_DIFF;
-		s->n_chan	= 8;
-	} else {
-		/* 16 single-ended channels */
-		s->subdev_flags	= SDF_READABLE | AREF_GROUND;
-		s->n_chan	= 16;
-	}
-	s->len_chanlist	= 1;
-	s->maxdata	= board->ai_maxdata;
-	s->range_table	= it->options[2] ? &range_bipolar10 : &range_unipolar5;
-	s->insn_read	= pcmad_ai_insn_read;
-
-	return 0;
-}
-
-static struct comedi_driver pcmad_driver = {
-	.driver_name	= "pcmad",
-	.module		= THIS_MODULE,
-	.attach		= pcmad_attach,
-	.detach		= comedi_legacy_detach,
-	.board_name	= &pcmad_boards[0].name,
-	.num_names	= ARRAY_SIZE(pcmad_boards),
-	.offset		= sizeof(pcmad_boards[0]),
-};
-module_comedi_driver(pcmad_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcmda12.c b/drivers/staging/comedi/drivers/pcmda12.c
deleted file mode 100644
index d86c5e2cd0c7..000000000000
--- a/drivers/staging/comedi/drivers/pcmda12.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * pcmda12.c
- * Driver for Winsystems PC-104 based PCM-D/A-12 8-channel AO board.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2006 Calin A. Culianu <calin@ajvar.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: pcmda12
- * Description: A driver for the Winsystems PCM-D/A-12
- * Devices: [Winsystems] PCM-D/A-12 (pcmda12)
- * Author: Calin Culianu <calin@ajvar.org>
- * Updated: Fri, 13 Jan 2006 12:01:01 -0500
- * Status: works
- *
- * A driver for the relatively straightforward-to-program PCM-D/A-12.
- * This board doesn't support commands, and the only way to set its
- * analog output range is to jumper the board. As such,
- * comedi_data_write() ignores the range value specified.
- *
- * The board uses 16 consecutive I/O addresses starting at the I/O port
- * base address. Each address corresponds to the LSB then MSB of a
- * particular channel from 0-7.
- *
- * Note that the board is not ISA-PNP capable and thus needs the I/O
- * port comedi_config parameter.
- *
- * Note that passing a nonzero value as the second config option will
- * enable "simultaneous xfer" mode for this board, in which AO writes
- * will not take effect until a subsequent read of any AO channel. This
- * is so that one can speed up programming by preloading all AO registers
- * with values before simultaneously setting them to take effect with one
- * read command.
- *
- * Configuration Options:
- *   [0] - I/O port base address
- *   [1] - Do Simultaneous Xfer (see description)
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-/* AI range is not configurable, it's set by jumpers on the board */
-static const struct comedi_lrange pcmda12_ranges = {
-	3, {
-		UNI_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(5)
-	}
-};
-
-struct pcmda12_private {
-	int simultaneous_xfer_mode;
-};
-
-static int pcmda12_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct pcmda12_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	unsigned long ioreg = dev->iobase + (chan * 2);
-	int i;
-
-	for (i = 0; i < insn->n; ++i) {
-		val = data[i];
-		outb(val & 0xff, ioreg);
-		outb((val >> 8) & 0xff, ioreg + 1);
-
-		/*
-		 * Initiate transfer if not in simultaneaous xfer
-		 * mode by reading one of the AO registers.
-		 */
-		if (!devpriv->simultaneous_xfer_mode)
-			inb(ioreg);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int pcmda12_ao_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct pcmda12_private *devpriv = dev->private;
-
-	/*
-	 * Initiate simultaneaous xfer mode by reading one of the
-	 * AO registers. All analog outputs will then be updated.
-	 */
-	if (devpriv->simultaneous_xfer_mode)
-		inb(dev->iobase);
-
-	return comedi_readback_insn_read(dev, s, insn, data);
-}
-
-static void pcmda12_ao_reset(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	int i;
-
-	for (i = 0; i < s->n_chan; ++i) {
-		outb(0, dev->iobase + (i * 2));
-		outb(0, dev->iobase + (i * 2) + 1);
-	}
-	/* Initiate transfer by reading one of the AO registers. */
-	inb(dev->iobase);
-}
-
-static int pcmda12_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct pcmda12_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	devpriv->simultaneous_xfer_mode = it->options[1];
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &pcmda12_ranges;
-	s->insn_write	= pcmda12_ao_insn_write;
-	s->insn_read	= pcmda12_ao_insn_read;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	pcmda12_ao_reset(dev, s);
-
-	return 0;
-}
-
-static struct comedi_driver pcmda12_driver = {
-	.driver_name	= "pcmda12",
-	.module		= THIS_MODULE,
-	.attach		= pcmda12_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(pcmda12_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
deleted file mode 100644
index 10472e6dd002..000000000000
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ /dev/null
@@ -1,786 +0,0 @@
-/*
- * pcmmio.c
- * Driver for Winsystems PC-104 based multifunction IO board.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2007 Calin A. Culianu <calin@ajvar.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: pcmmio
- * Description: A driver for the PCM-MIO multifunction board
- * Devices: [Winsystems] PCM-MIO (pcmmio)
- * Author: Calin Culianu <calin@ajvar.org>
- * Updated: Wed, May 16 2007 16:21:10 -0500
- * Status: works
- *
- * A driver for the PCM-MIO multifunction board from Winsystems. This
- * is a PC-104 based I/O board. It contains four subdevices:
- *
- *	subdevice 0 - 16 channels of 16-bit AI
- *	subdevice 1 - 8 channels of 16-bit AO
- *	subdevice 2 - first 24 channels of the 48 channel of DIO
- *			(with edge-triggered interrupt support)
- *	subdevice 3 - last 24 channels of the 48 channel DIO
- *			(no interrupt support for this bank of channels)
- *
- * Some notes:
- *
- * Synchronous reads and writes are the only things implemented for analog
- * input and output. The hardware itself can do streaming acquisition, etc.
- *
- * Asynchronous I/O for the DIO subdevices *is* implemented, however! They
- * are basically edge-triggered interrupts for any configuration of the
- * channels in subdevice 2.
- *
- * Also note that this interrupt support is untested.
- *
- * A few words about edge-detection IRQ support (commands on DIO):
- *
- * To use edge-detection IRQ support for the DIO subdevice, pass the IRQ
- * of the board to the comedi_config command. The board IRQ is not jumpered
- * but rather configured through software, so any IRQ from 1-15 is OK.
- *
- * Due to the genericity of the comedi API, you need to create a special
- * comedi_command in order to use edge-triggered interrupts for DIO.
- *
- * Use comedi_commands with TRIG_NOW.  Your callback will be called each
- * time an edge is detected on the specified DIO line(s), and the data
- * values will be two sample_t's, which should be concatenated to form
- * one 32-bit unsigned int. This value is the mask of channels that had
- * edges detected from your channel list. Note that the bits positions
- * in the mask correspond to positions in your chanlist when you
- * specified the command and *not* channel id's!
- *
- * To set the polarity of the edge-detection interrupts pass a nonzero value
- * for either CR_RANGE or CR_AREF for edge-up polarity, or a zero
- * value for both CR_RANGE and CR_AREF if you want edge-down polarity.
- *
- * Configuration Options:
- *   [0] - I/O port base address
- *   [1] - IRQ (optional -- for edge-detect interrupt support only,
- *		leave out if you don't need this feature)
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-#include "../comedidev.h"
-
-/*
- * Register I/O map
- */
-#define PCMMIO_AI_LSB_REG			0x00
-#define PCMMIO_AI_MSB_REG			0x01
-#define PCMMIO_AI_CMD_REG			0x02
-#define PCMMIO_AI_CMD_SE			(1 << 7)
-#define PCMMIO_AI_CMD_ODD_CHAN			(1 << 6)
-#define PCMMIO_AI_CMD_CHAN_SEL(x)		(((x) & 0x3) << 4)
-#define PCMMIO_AI_CMD_RANGE(x)			(((x) & 0x3) << 2)
-#define PCMMIO_RESOURCE_REG			0x02
-#define PCMMIO_RESOURCE_IRQ(x)			(((x) & 0xf) << 0)
-#define PCMMIO_AI_STATUS_REG			0x03
-#define PCMMIO_AI_STATUS_DATA_READY		(1 << 7)
-#define PCMMIO_AI_STATUS_DATA_DMA_PEND		(1 << 6)
-#define PCMMIO_AI_STATUS_CMD_DMA_PEND		(1 << 5)
-#define PCMMIO_AI_STATUS_IRQ_PEND		(1 << 4)
-#define PCMMIO_AI_STATUS_DATA_DRQ_ENA		(1 << 2)
-#define PCMMIO_AI_STATUS_REG_SEL		(1 << 3)
-#define PCMMIO_AI_STATUS_CMD_DRQ_ENA		(1 << 1)
-#define PCMMIO_AI_STATUS_IRQ_ENA		(1 << 0)
-#define PCMMIO_AI_RES_ENA_REG			0x03
-#define PCMMIO_AI_RES_ENA_CMD_REG_ACCESS	(0 << 3)
-#define PCMMIO_AI_RES_ENA_AI_RES_ACCESS		(1 << 3)
-#define PCMMIO_AI_RES_ENA_DIO_RES_ACCESS	(1 << 4)
-#define PCMMIO_AI_2ND_ADC_OFFSET		0x04
-
-#define PCMMIO_AO_LSB_REG			0x08
-#define PCMMIO_AO_LSB_SPAN(x)			(((x) & 0xf) << 0)
-#define PCMMIO_AO_MSB_REG			0x09
-#define PCMMIO_AO_CMD_REG			0x0a
-#define PCMMIO_AO_CMD_WR_SPAN			(0x2 << 4)
-#define PCMMIO_AO_CMD_WR_CODE			(0x3 << 4)
-#define PCMMIO_AO_CMD_UPDATE			(0x4 << 4)
-#define PCMMIO_AO_CMD_UPDATE_ALL		(0x5 << 4)
-#define PCMMIO_AO_CMD_WR_SPAN_UPDATE		(0x6 << 4)
-#define PCMMIO_AO_CMD_WR_CODE_UPDATE		(0x7 << 4)
-#define PCMMIO_AO_CMD_WR_SPAN_UPDATE_ALL	(0x8 << 4)
-#define PCMMIO_AO_CMD_WR_CODE_UPDATE_ALL	(0x9 << 4)
-#define PCMMIO_AO_CMD_RD_B1_SPAN		(0xa << 4)
-#define PCMMIO_AO_CMD_RD_B1_CODE		(0xb << 4)
-#define PCMMIO_AO_CMD_RD_B2_SPAN		(0xc << 4)
-#define PCMMIO_AO_CMD_RD_B2_CODE		(0xd << 4)
-#define PCMMIO_AO_CMD_NOP			(0xf << 4)
-#define PCMMIO_AO_CMD_CHAN_SEL(x)		(((x) & 0x03) << 1)
-#define PCMMIO_AO_CMD_CHAN_SEL_ALL		(0x0f << 0)
-#define PCMMIO_AO_STATUS_REG			0x0b
-#define PCMMIO_AO_STATUS_DATA_READY		(1 << 7)
-#define PCMMIO_AO_STATUS_DATA_DMA_PEND		(1 << 6)
-#define PCMMIO_AO_STATUS_CMD_DMA_PEND		(1 << 5)
-#define PCMMIO_AO_STATUS_IRQ_PEND		(1 << 4)
-#define PCMMIO_AO_STATUS_DATA_DRQ_ENA		(1 << 2)
-#define PCMMIO_AO_STATUS_REG_SEL		(1 << 3)
-#define PCMMIO_AO_STATUS_CMD_DRQ_ENA		(1 << 1)
-#define PCMMIO_AO_STATUS_IRQ_ENA		(1 << 0)
-#define PCMMIO_AO_RESOURCE_ENA_REG		0x0b
-#define PCMMIO_AO_2ND_DAC_OFFSET		0x04
-
-/*
- * WinSystems WS16C48
- *
- * Offset    Page 0       Page 1       Page 2       Page 3
- * ------  -----------  -----------  -----------  -----------
- *  0x10   Port 0 I/O   Port 0 I/O   Port 0 I/O   Port 0 I/O
- *  0x11   Port 1 I/O   Port 1 I/O   Port 1 I/O   Port 1 I/O
- *  0x12   Port 2 I/O   Port 2 I/O   Port 2 I/O   Port 2 I/O
- *  0x13   Port 3 I/O   Port 3 I/O   Port 3 I/O   Port 3 I/O
- *  0x14   Port 4 I/O   Port 4 I/O   Port 4 I/O   Port 4 I/O
- *  0x15   Port 5 I/O   Port 5 I/O   Port 5 I/O   Port 5 I/O
- *  0x16   INT_PENDING  INT_PENDING  INT_PENDING  INT_PENDING
- *  0x17    Page/Lock    Page/Lock    Page/Lock    Page/Lock
- *  0x18       N/A         POL_0       ENAB_0       INT_ID0
- *  0x19       N/A         POL_1       ENAB_1       INT_ID1
- *  0x1a       N/A         POL_2       ENAB_2       INT_ID2
- */
-#define PCMMIO_PORT_REG(x)			(0x10 + (x))
-#define PCMMIO_INT_PENDING_REG			0x16
-#define PCMMIO_PAGE_LOCK_REG			0x17
-#define PCMMIO_LOCK_PORT(x)			((1 << (x)) & 0x3f)
-#define PCMMIO_PAGE(x)				(((x) & 0x3) << 6)
-#define PCMMIO_PAGE_MASK			PCMUIO_PAGE(3)
-#define PCMMIO_PAGE_POL				1
-#define PCMMIO_PAGE_ENAB			2
-#define PCMMIO_PAGE_INT_ID			3
-#define PCMMIO_PAGE_REG(x)			(0x18 + (x))
-
-static const struct comedi_lrange pcmmio_ai_ranges = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		UNI_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-static const struct comedi_lrange pcmmio_ao_ranges = {
-	6, {
-		UNI_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-		BIP_RANGE(2.5),
-		RANGE(-2.5, 7.5)
-	}
-};
-
-struct pcmmio_private {
-	spinlock_t pagelock;	/* protects the page registers */
-	spinlock_t spinlock;	/* protects the member variables */
-	unsigned int enabled_mask;
-	unsigned int active:1;
-};
-
-static void pcmmio_dio_write(struct comedi_device *dev, unsigned int val,
-			     int page, int port)
-{
-	struct pcmmio_private *devpriv = dev->private;
-	unsigned long iobase = dev->iobase;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->pagelock, flags);
-	if (page == 0) {
-		/* Port registers are valid for any page */
-		outb(val & 0xff, iobase + PCMMIO_PORT_REG(port + 0));
-		outb((val >> 8) & 0xff, iobase + PCMMIO_PORT_REG(port + 1));
-		outb((val >> 16) & 0xff, iobase + PCMMIO_PORT_REG(port + 2));
-	} else {
-		outb(PCMMIO_PAGE(page), iobase + PCMMIO_PAGE_LOCK_REG);
-		outb(val & 0xff, iobase + PCMMIO_PAGE_REG(0));
-		outb((val >> 8) & 0xff, iobase + PCMMIO_PAGE_REG(1));
-		outb((val >> 16) & 0xff, iobase + PCMMIO_PAGE_REG(2));
-	}
-	spin_unlock_irqrestore(&devpriv->pagelock, flags);
-}
-
-static unsigned int pcmmio_dio_read(struct comedi_device *dev,
-				    int page, int port)
-{
-	struct pcmmio_private *devpriv = dev->private;
-	unsigned long iobase = dev->iobase;
-	unsigned long flags;
-	unsigned int val;
-
-	spin_lock_irqsave(&devpriv->pagelock, flags);
-	if (page == 0) {
-		/* Port registers are valid for any page */
-		val = inb(iobase + PCMMIO_PORT_REG(port + 0));
-		val |= (inb(iobase + PCMMIO_PORT_REG(port + 1)) << 8);
-		val |= (inb(iobase + PCMMIO_PORT_REG(port + 2)) << 16);
-	} else {
-		outb(PCMMIO_PAGE(page), iobase + PCMMIO_PAGE_LOCK_REG);
-		val = inb(iobase + PCMMIO_PAGE_REG(0));
-		val |= (inb(iobase + PCMMIO_PAGE_REG(1)) << 8);
-		val |= (inb(iobase + PCMMIO_PAGE_REG(2)) << 16);
-	}
-	spin_unlock_irqrestore(&devpriv->pagelock, flags);
-
-	return val;
-}
-
-/*
- * Each channel can be individually programmed for input or output.
- * Writing a '0' to a channel causes the corresponding output pin
- * to go to a high-z state (pulled high by an external 10K resistor).
- * This allows it to be used as an input. When used in the input mode,
- * a read reflects the inverted state of the I/O pin, such that a
- * high on the pin will read as a '0' in the register. Writing a '1'
- * to a bit position causes the pin to sink current (up to 12mA),
- * effectively pulling it low.
- */
-static int pcmmio_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	/* subdevice 2 uses ports 0-2, subdevice 3 uses ports 3-5 */
-	int port = s->index == 2 ? 0 : 3;
-	unsigned int chanmask = (1 << s->n_chan) - 1;
-	unsigned int mask;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		/*
-		 * Outputs are inverted, invert the state and
-		 * update the channels.
-		 *
-		 * The s->io_bits mask makes sure the input channels
-		 * are '0' so that the outputs pins stay in a high
-		 * z-state.
-		 */
-		val = ~s->state & chanmask;
-		val &= s->io_bits;
-		pcmmio_dio_write(dev, val, 0, port);
-	}
-
-	/* get inverted state of the channels from the port */
-	val = pcmmio_dio_read(dev, 0, port);
-
-	/* return the true state of the channels */
-	data[1] = ~val & chanmask;
-
-	return insn->n;
-}
-
-static int pcmmio_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	/* subdevice 2 uses ports 0-2, subdevice 3 uses ports 3-5 */
-	int port = s->index == 2 ? 0 : 3;
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	if (data[0] == INSN_CONFIG_DIO_INPUT)
-		pcmmio_dio_write(dev, s->io_bits, 0, port);
-
-	return insn->n;
-}
-
-static void pcmmio_reset(struct comedi_device *dev)
-{
-	/* Clear all the DIO port bits */
-	pcmmio_dio_write(dev, 0, 0, 0);
-	pcmmio_dio_write(dev, 0, 0, 3);
-
-	/* Clear all the paged registers */
-	pcmmio_dio_write(dev, 0, PCMMIO_PAGE_POL, 0);
-	pcmmio_dio_write(dev, 0, PCMMIO_PAGE_ENAB, 0);
-	pcmmio_dio_write(dev, 0, PCMMIO_PAGE_INT_ID, 0);
-}
-
-/* devpriv->spinlock is already locked */
-static void pcmmio_stop_intr(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct pcmmio_private *devpriv = dev->private;
-
-	devpriv->enabled_mask = 0;
-	devpriv->active = 0;
-	s->async->inttrig = NULL;
-
-	/* disable all dio interrupts */
-	pcmmio_dio_write(dev, 0, PCMMIO_PAGE_ENAB, 0);
-}
-
-static void pcmmio_handle_dio_intr(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   unsigned int triggered)
-{
-	struct pcmmio_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int val = 0;
-	unsigned long flags;
-	int i;
-
-	spin_lock_irqsave(&devpriv->spinlock, flags);
-
-	if (!devpriv->active)
-		goto done;
-
-	if (!(triggered & devpriv->enabled_mask))
-		goto done;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if (triggered & (1 << chan))
-			val |= (1 << i);
-	}
-
-	comedi_buf_write_samples(s, &val, 1);
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg)
-		s->async->events |= COMEDI_CB_EOA;
-
-done:
-	spin_unlock_irqrestore(&devpriv->spinlock, flags);
-
-	comedi_handle_events(dev, s);
-}
-
-static irqreturn_t interrupt_pcmmio(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	unsigned int triggered;
-	unsigned char int_pend;
-
-	/* are there any interrupts pending */
-	int_pend = inb(dev->iobase + PCMMIO_INT_PENDING_REG) & 0x07;
-	if (!int_pend)
-		return IRQ_NONE;
-
-	/* get, and clear, the pending interrupts */
-	triggered = pcmmio_dio_read(dev, PCMMIO_PAGE_INT_ID, 0);
-	pcmmio_dio_write(dev, 0, PCMMIO_PAGE_INT_ID, 0);
-
-	pcmmio_handle_dio_intr(dev, s, triggered);
-
-	return IRQ_HANDLED;
-}
-
-/* devpriv->spinlock is already locked */
-static void pcmmio_start_intr(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct pcmmio_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int bits = 0;
-	unsigned int pol_bits = 0;
-	int i;
-
-	devpriv->enabled_mask = 0;
-	devpriv->active = 1;
-	if (cmd->chanlist) {
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			unsigned int chanspec = cmd->chanlist[i];
-			unsigned int chan = CR_CHAN(chanspec);
-			unsigned int range = CR_RANGE(chanspec);
-			unsigned int aref = CR_AREF(chanspec);
-
-			bits |= (1 << chan);
-			pol_bits |= (((aref || range) ? 1 : 0) << chan);
-		}
-	}
-	bits &= ((1 << s->n_chan) - 1);
-	devpriv->enabled_mask = bits;
-
-	/* set polarity and enable interrupts */
-	pcmmio_dio_write(dev, pol_bits, PCMMIO_PAGE_POL, 0);
-	pcmmio_dio_write(dev, bits, PCMMIO_PAGE_ENAB, 0);
-}
-
-static int pcmmio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcmmio_private *devpriv = dev->private;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->spinlock, flags);
-	if (devpriv->active)
-		pcmmio_stop_intr(dev, s);
-	spin_unlock_irqrestore(&devpriv->spinlock, flags);
-
-	return 0;
-}
-
-static int pcmmio_inttrig_start_intr(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     unsigned int trig_num)
-{
-	struct pcmmio_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned long flags;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	spin_lock_irqsave(&devpriv->spinlock, flags);
-	s->async->inttrig = NULL;
-	if (devpriv->active)
-		pcmmio_start_intr(dev, s);
-	spin_unlock_irqrestore(&devpriv->spinlock, flags);
-
-	return 1;
-}
-
-/*
- * 'do_cmd' function for an 'INTERRUPT' subdevice.
- */
-static int pcmmio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcmmio_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devpriv->spinlock, flags);
-	devpriv->active = 1;
-
-	/* Set up start of acquisition. */
-	if (cmd->start_src == TRIG_INT)
-		s->async->inttrig = pcmmio_inttrig_start_intr;
-	else	/* TRIG_NOW */
-		pcmmio_start_intr(dev, s);
-
-	spin_unlock_irqrestore(&devpriv->spinlock, flags);
-
-	return 0;
-}
-
-static int pcmmio_cmdtest(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	/* if (err) return 4; */
-
-	return 0;
-}
-
-static int pcmmio_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned char status;
-
-	status = inb(dev->iobase + PCMMIO_AI_STATUS_REG);
-	if (status & PCMMIO_AI_STATUS_DATA_READY)
-		return 0;
-	return -EBUSY;
-}
-
-static int pcmmio_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned long iobase = dev->iobase;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int aref = CR_AREF(insn->chanspec);
-	unsigned char cmd = 0;
-	unsigned int val;
-	int ret;
-	int i;
-
-	/*
-	 * The PCM-MIO uses two Linear Tech LTC1859CG 8-channel A/D converters.
-	 * The devices use a full duplex serial interface which transmits and
-	 * receives data simultaneously. An 8-bit command is shifted into the
-	 * ADC interface to configure it for the next conversion. At the same
-	 * time, the data from the previous conversion is shifted out of the
-	 * device. Consequently, the conversion result is delayed by one
-	 * conversion from the command word.
-	 *
-	 * Setup the cmd for the conversions then do a dummy conversion to
-	 * flush the junk data. Then do each conversion requested by the
-	 * comedi_insn. Note that the last conversion will leave junk data
-	 * in ADC which will get flushed on the next comedi_insn.
-	 */
-
-	if (chan > 7) {
-		chan -= 8;
-		iobase += PCMMIO_AI_2ND_ADC_OFFSET;
-	}
-
-	if (aref == AREF_GROUND)
-		cmd |= PCMMIO_AI_CMD_SE;
-	if (chan % 2)
-		cmd |= PCMMIO_AI_CMD_ODD_CHAN;
-	cmd |= PCMMIO_AI_CMD_CHAN_SEL(chan / 2);
-	cmd |= PCMMIO_AI_CMD_RANGE(range);
-
-	outb(cmd, iobase + PCMMIO_AI_CMD_REG);
-
-	ret = comedi_timeout(dev, s, insn, pcmmio_ai_eoc, 0);
-	if (ret)
-		return ret;
-
-	val = inb(iobase + PCMMIO_AI_LSB_REG);
-	val |= inb(iobase + PCMMIO_AI_MSB_REG) << 8;
-
-	for (i = 0; i < insn->n; i++) {
-		outb(cmd, iobase + PCMMIO_AI_CMD_REG);
-
-		ret = comedi_timeout(dev, s, insn, pcmmio_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		val = inb(iobase + PCMMIO_AI_LSB_REG);
-		val |= inb(iobase + PCMMIO_AI_MSB_REG) << 8;
-
-		/* bipolar data is two's complement */
-		if (comedi_range_is_bipolar(s, range))
-			val = comedi_offset_munge(s, val);
-
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int pcmmio_ao_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned char status;
-
-	status = inb(dev->iobase + PCMMIO_AO_STATUS_REG);
-	if (status & PCMMIO_AO_STATUS_DATA_READY)
-		return 0;
-	return -EBUSY;
-}
-
-static int pcmmio_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned long iobase = dev->iobase;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned char cmd = 0;
-	int ret;
-	int i;
-
-	/*
-	 * The PCM-MIO has two Linear Tech LTC2704 DAC devices. Each device
-	 * is a 4-channel converter with software-selectable output range.
-	 */
-
-	if (chan > 3) {
-		cmd |= PCMMIO_AO_CMD_CHAN_SEL(chan - 4);
-		iobase += PCMMIO_AO_2ND_DAC_OFFSET;
-	} else {
-		cmd |= PCMMIO_AO_CMD_CHAN_SEL(chan);
-	}
-
-	/* set the range for the channel */
-	outb(PCMMIO_AO_LSB_SPAN(range), iobase + PCMMIO_AO_LSB_REG);
-	outb(0, iobase + PCMMIO_AO_MSB_REG);
-	outb(cmd | PCMMIO_AO_CMD_WR_SPAN_UPDATE, iobase + PCMMIO_AO_CMD_REG);
-
-	ret = comedi_timeout(dev, s, insn, pcmmio_ao_eoc, 0);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		/* write the data to the channel */
-		outb(val & 0xff, iobase + PCMMIO_AO_LSB_REG);
-		outb((val >> 8) & 0xff, iobase + PCMMIO_AO_MSB_REG);
-		outb(cmd | PCMMIO_AO_CMD_WR_CODE_UPDATE,
-		     iobase + PCMMIO_AO_CMD_REG);
-
-		ret = comedi_timeout(dev, s, insn, pcmmio_ao_eoc, 0);
-		if (ret)
-			return ret;
-
-		s->readback[chan] = val;
-	}
-
-	return insn->n;
-}
-
-static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct pcmmio_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 32);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	spin_lock_init(&devpriv->pagelock);
-	spin_lock_init(&devpriv->spinlock);
-
-	pcmmio_reset(dev);
-
-	if (it->options[1]) {
-		ret = request_irq(it->options[1], interrupt_pcmmio, 0,
-				  dev->board_name, dev);
-		if (ret == 0) {
-			dev->irq = it->options[1];
-
-			/* configure the interrupt routing on the board */
-			outb(PCMMIO_AI_RES_ENA_DIO_RES_ACCESS,
-			     dev->iobase + PCMMIO_AI_RES_ENA_REG);
-			outb(PCMMIO_RESOURCE_IRQ(dev->irq),
-			     dev->iobase + PCMMIO_RESOURCE_REG);
-		}
-	}
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF;
-	s->n_chan	= 16;
-	s->maxdata	= 0xffff;
-	s->range_table	= &pcmmio_ai_ranges;
-	s->insn_read	= pcmmio_ai_insn_read;
-
-	/* initialize the resource enable register by clearing it */
-	outb(PCMMIO_AI_RES_ENA_CMD_REG_ACCESS,
-	     dev->iobase + PCMMIO_AI_RES_ENA_REG);
-	outb(PCMMIO_AI_RES_ENA_CMD_REG_ACCESS,
-	     dev->iobase + PCMMIO_AI_RES_ENA_REG + PCMMIO_AI_2ND_ADC_OFFSET);
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 0xffff;
-	s->range_table	= &pcmmio_ao_ranges;
-	s->insn_write	= pcmmio_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* initialize the resource enable register by clearing it */
-	outb(0, dev->iobase + PCMMIO_AO_RESOURCE_ENA_REG);
-	outb(0, dev->iobase + PCMMIO_AO_2ND_DAC_OFFSET +
-		PCMMIO_AO_RESOURCE_ENA_REG);
-
-	/* Digital I/O subdevice with interrupt support */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 24;
-	s->maxdata	= 1;
-	s->len_chanlist	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcmmio_dio_insn_bits;
-	s->insn_config	= pcmmio_dio_insn_config;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ | SDF_LSAMPL | SDF_PACKED;
-		s->len_chanlist	= s->n_chan;
-		s->cancel	= pcmmio_cancel;
-		s->do_cmd	= pcmmio_cmd;
-		s->do_cmdtest	= pcmmio_cmdtest;
-	}
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 24;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= pcmmio_dio_insn_bits;
-	s->insn_config	= pcmmio_dio_insn_config;
-
-	return 0;
-}
-
-static struct comedi_driver pcmmio_driver = {
-	.driver_name	= "pcmmio",
-	.module		= THIS_MODULE,
-	.attach		= pcmmio_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(pcmmio_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Winsystems PCM-MIO PC/104 board");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
deleted file mode 100644
index 7ea813022ff6..000000000000
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * pcmuio.c
- * Comedi driver for Winsystems PC-104 based 48/96-channel DIO boards.
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2006 Calin A. Culianu <calin@ajvar.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: pcmuio
- * Description: Winsystems PC-104 based 48/96-channel DIO boards.
- * Devices: [Winsystems] PCM-UIO48A (pcmuio48), PCM-UIO96A (pcmuio96)
- * Author: Calin Culianu <calin@ajvar.org>
- * Updated: Fri, 13 Jan 2006 12:01:01 -0500
- * Status: works
- *
- * A driver for the relatively straightforward-to-program PCM-UIO48A and
- * PCM-UIO96A boards from Winsystems. These boards use either one or two
- * (in the 96-DIO version) WS16C48 ASIC HighDensity I/O Chips (HDIO). This
- * chip is interesting in that each I/O line is individually programmable
- * for INPUT or OUTPUT (thus comedi_dio_config can be done on a per-channel
- * basis). Also, each chip supports edge-triggered interrupts for the first
- * 24 I/O lines. Of course, since the 96-channel version of the board has
- * two ASICs, it can detect polarity changes on up to 48 I/O lines. Since
- * this is essentially an (non-PnP) ISA board, I/O Address and IRQ selection
- * are done through jumpers on the board. You need to pass that information
- * to this driver as the first and second comedi_config option, respectively.
- * Note that the 48-channel version uses 16 bytes of IO memory and the 96-
- * channel version uses 32-bytes (in case you are worried about conflicts).
- * The 48-channel board is split into two 24-channel comedi subdevices. The
- * 96-channel board is split into 4 24-channel DIO subdevices.
- *
- * Note that IRQ support has been added, but it is untested.
- *
- * To use edge-detection IRQ support, pass the IRQs of both ASICS (for the
- * 96 channel version) or just 1 ASIC (for 48-channel version). Then, use
- * comedi_commands with TRIG_NOW. Your callback will be called each time an
- * edge is triggered, and the data values will be two sample_t's, which
- * should be concatenated to form one 32-bit unsigned int.  This value is
- * the mask of channels that had edges detected from your channel list. Note
- * that the bits positions in the mask correspond to positions in your
- * chanlist when you specified the command and *not* channel id's!
- *
- * To set the polarity of the edge-detection interrupts pass a nonzero value
- * for either CR_RANGE or CR_AREF for edge-up polarity, or a zero value for
- * both CR_RANGE and CR_AREF if you want edge-down polarity.
- *
- * In the 48-channel version:
- *
- * On subdev 0, the first 24 channels channels are edge-detect channels.
- *
- * In the 96-channel board you have the following channels that can do edge
- * detection:
- *
- * subdev 0, channels 0-24  (first 24 channels of 1st ASIC)
- * subdev 2, channels 0-24  (first 24 channels of 2nd ASIC)
- *
- * Configuration Options:
- *  [0] - I/O port base address
- *  [1] - IRQ (for first ASIC, or first 24 channels)
- *  [2] - IRQ (for second ASIC, pcmuio96 only - IRQ for chans 48-72
- *             can be the same as first irq!)
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-/*
- * Register I/O map
- *
- * Offset    Page 0       Page 1       Page 2       Page 3
- * ------  -----------  -----------  -----------  -----------
- *  0x00   Port 0 I/O   Port 0 I/O   Port 0 I/O   Port 0 I/O
- *  0x01   Port 1 I/O   Port 1 I/O   Port 1 I/O   Port 1 I/O
- *  0x02   Port 2 I/O   Port 2 I/O   Port 2 I/O   Port 2 I/O
- *  0x03   Port 3 I/O   Port 3 I/O   Port 3 I/O   Port 3 I/O
- *  0x04   Port 4 I/O   Port 4 I/O   Port 4 I/O   Port 4 I/O
- *  0x05   Port 5 I/O   Port 5 I/O   Port 5 I/O   Port 5 I/O
- *  0x06   INT_PENDING  INT_PENDING  INT_PENDING  INT_PENDING
- *  0x07    Page/Lock    Page/Lock    Page/Lock    Page/Lock
- *  0x08       N/A         POL_0       ENAB_0       INT_ID0
- *  0x09       N/A         POL_1       ENAB_1       INT_ID1
- *  0x0a       N/A         POL_2       ENAB_2       INT_ID2
- */
-#define PCMUIO_PORT_REG(x)		(0x00 + (x))
-#define PCMUIO_INT_PENDING_REG		0x06
-#define PCMUIO_PAGE_LOCK_REG		0x07
-#define PCMUIO_LOCK_PORT(x)		((1 << (x)) & 0x3f)
-#define PCMUIO_PAGE(x)			(((x) & 0x3) << 6)
-#define PCMUIO_PAGE_MASK		PCMUIO_PAGE(3)
-#define PCMUIO_PAGE_POL			1
-#define PCMUIO_PAGE_ENAB		2
-#define PCMUIO_PAGE_INT_ID		3
-#define PCMUIO_PAGE_REG(x)		(0x08 + (x))
-
-#define PCMUIO_ASIC_IOSIZE		0x10
-#define PCMUIO_MAX_ASICS		2
-
-struct pcmuio_board {
-	const char *name;
-	const int num_asics;
-};
-
-static const struct pcmuio_board pcmuio_boards[] = {
-	{
-		.name		= "pcmuio48",
-		.num_asics	= 1,
-	}, {
-		.name		= "pcmuio96",
-		.num_asics	= 2,
-	},
-};
-
-struct pcmuio_asic {
-	spinlock_t pagelock;	/* protects the page registers */
-	spinlock_t spinlock;	/* protects member variables */
-	unsigned int enabled_mask;
-	unsigned int active:1;
-};
-
-struct pcmuio_private {
-	struct pcmuio_asic asics[PCMUIO_MAX_ASICS];
-	unsigned int irq2;
-};
-
-static inline unsigned long pcmuio_asic_iobase(struct comedi_device *dev,
-					       int asic)
-{
-	return dev->iobase + (asic * PCMUIO_ASIC_IOSIZE);
-}
-
-static inline int pcmuio_subdevice_to_asic(struct comedi_subdevice *s)
-{
-	/*
-	 * subdevice 0 and 1 are handled by the first asic
-	 * subdevice 2 and 3 are handled by the second asic
-	 */
-	return s->index / 2;
-}
-
-static inline int pcmuio_subdevice_to_port(struct comedi_subdevice *s)
-{
-	/*
-	 * subdevice 0 and 2 use port registers 0-2
-	 * subdevice 1 and 3 use port registers 3-5
-	 */
-	return (s->index % 2) ? 3 : 0;
-}
-
-static void pcmuio_write(struct comedi_device *dev, unsigned int val,
-			 int asic, int page, int port)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-	unsigned long iobase = pcmuio_asic_iobase(dev, asic);
-	unsigned long flags;
-
-	spin_lock_irqsave(&chip->pagelock, flags);
-	if (page == 0) {
-		/* Port registers are valid for any page */
-		outb(val & 0xff, iobase + PCMUIO_PORT_REG(port + 0));
-		outb((val >> 8) & 0xff, iobase + PCMUIO_PORT_REG(port + 1));
-		outb((val >> 16) & 0xff, iobase + PCMUIO_PORT_REG(port + 2));
-	} else {
-		outb(PCMUIO_PAGE(page), iobase + PCMUIO_PAGE_LOCK_REG);
-		outb(val & 0xff, iobase + PCMUIO_PAGE_REG(0));
-		outb((val >> 8) & 0xff, iobase + PCMUIO_PAGE_REG(1));
-		outb((val >> 16) & 0xff, iobase + PCMUIO_PAGE_REG(2));
-	}
-	spin_unlock_irqrestore(&chip->pagelock, flags);
-}
-
-static unsigned int pcmuio_read(struct comedi_device *dev,
-				int asic, int page, int port)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-	unsigned long iobase = pcmuio_asic_iobase(dev, asic);
-	unsigned long flags;
-	unsigned int val;
-
-	spin_lock_irqsave(&chip->pagelock, flags);
-	if (page == 0) {
-		/* Port registers are valid for any page */
-		val = inb(iobase + PCMUIO_PORT_REG(port + 0));
-		val |= (inb(iobase + PCMUIO_PORT_REG(port + 1)) << 8);
-		val |= (inb(iobase + PCMUIO_PORT_REG(port + 2)) << 16);
-	} else {
-		outb(PCMUIO_PAGE(page), iobase + PCMUIO_PAGE_LOCK_REG);
-		val = inb(iobase + PCMUIO_PAGE_REG(0));
-		val |= (inb(iobase + PCMUIO_PAGE_REG(1)) << 8);
-		val |= (inb(iobase + PCMUIO_PAGE_REG(2)) << 16);
-	}
-	spin_unlock_irqrestore(&chip->pagelock, flags);
-
-	return val;
-}
-
-/*
- * Each channel can be individually programmed for input or output.
- * Writing a '0' to a channel causes the corresponding output pin
- * to go to a high-z state (pulled high by an external 10K resistor).
- * This allows it to be used as an input. When used in the input mode,
- * a read reflects the inverted state of the I/O pin, such that a
- * high on the pin will read as a '0' in the register. Writing a '1'
- * to a bit position causes the pin to sink current (up to 12mA),
- * effectively pulling it low.
- */
-static int pcmuio_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	int asic = pcmuio_subdevice_to_asic(s);
-	int port = pcmuio_subdevice_to_port(s);
-	unsigned int chanmask = (1 << s->n_chan) - 1;
-	unsigned int mask;
-	unsigned int val;
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		/*
-		 * Outputs are inverted, invert the state and
-		 * update the channels.
-		 *
-		 * The s->io_bits mask makes sure the input channels
-		 * are '0' so that the outputs pins stay in a high
-		 * z-state.
-		 */
-		val = ~s->state & chanmask;
-		val &= s->io_bits;
-		pcmuio_write(dev, val, asic, 0, port);
-	}
-
-	/* get inverted state of the channels from the port */
-	val = pcmuio_read(dev, asic, 0, port);
-
-	/* return the true state of the channels */
-	data[1] = ~val & chanmask;
-
-	return insn->n;
-}
-
-static int pcmuio_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	int asic = pcmuio_subdevice_to_asic(s);
-	int port = pcmuio_subdevice_to_port(s);
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	if (data[0] == INSN_CONFIG_DIO_INPUT)
-		pcmuio_write(dev, s->io_bits, asic, 0, port);
-
-	return insn->n;
-}
-
-static void pcmuio_reset(struct comedi_device *dev)
-{
-	const struct pcmuio_board *board = dev->board_ptr;
-	int asic;
-
-	for (asic = 0; asic < board->num_asics; ++asic) {
-		/* first, clear all the DIO port bits */
-		pcmuio_write(dev, 0, asic, 0, 0);
-		pcmuio_write(dev, 0, asic, 0, 3);
-
-		/* Next, clear all the paged registers for each page */
-		pcmuio_write(dev, 0, asic, PCMUIO_PAGE_POL, 0);
-		pcmuio_write(dev, 0, asic, PCMUIO_PAGE_ENAB, 0);
-		pcmuio_write(dev, 0, asic, PCMUIO_PAGE_INT_ID, 0);
-	}
-}
-
-/* chip->spinlock is already locked */
-static void pcmuio_stop_intr(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	int asic = pcmuio_subdevice_to_asic(s);
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-
-	chip->enabled_mask = 0;
-	chip->active = 0;
-	s->async->inttrig = NULL;
-
-	/* disable all intrs for this subdev.. */
-	pcmuio_write(dev, 0, asic, PCMUIO_PAGE_ENAB, 0);
-}
-
-static void pcmuio_handle_intr_subdev(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      unsigned triggered)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	int asic = pcmuio_subdevice_to_asic(s);
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int val = 0;
-	unsigned long flags;
-	unsigned int i;
-
-	spin_lock_irqsave(&chip->spinlock, flags);
-
-	if (!chip->active)
-		goto done;
-
-	if (!(triggered & chip->enabled_mask))
-		goto done;
-
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-
-		if (triggered & (1 << chan))
-			val |= (1 << i);
-	}
-
-	comedi_buf_write_samples(s, &val, 1);
-
-	if (cmd->stop_src == TRIG_COUNT &&
-	    s->async->scans_done >= cmd->stop_arg)
-		s->async->events |= COMEDI_CB_EOA;
-
-done:
-	spin_unlock_irqrestore(&chip->spinlock, flags);
-
-	comedi_handle_events(dev, s);
-}
-
-static int pcmuio_handle_asic_interrupt(struct comedi_device *dev, int asic)
-{
-	/* there are could be two asics so we can't use dev->read_subdev */
-	struct comedi_subdevice *s = &dev->subdevices[asic * 2];
-	unsigned long iobase = pcmuio_asic_iobase(dev, asic);
-	unsigned int val;
-
-	/* are there any interrupts pending */
-	val = inb(iobase + PCMUIO_INT_PENDING_REG) & 0x07;
-	if (!val)
-		return 0;
-
-	/* get, and clear, the pending interrupts */
-	val = pcmuio_read(dev, asic, PCMUIO_PAGE_INT_ID, 0);
-	pcmuio_write(dev, 0, asic, PCMUIO_PAGE_INT_ID, 0);
-
-	/* handle the pending interrupts */
-	pcmuio_handle_intr_subdev(dev, s, val);
-
-	return 1;
-}
-
-static irqreturn_t pcmuio_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct pcmuio_private *devpriv = dev->private;
-	int handled = 0;
-
-	if (irq == dev->irq)
-		handled += pcmuio_handle_asic_interrupt(dev, 0);
-	if (irq == devpriv->irq2)
-		handled += pcmuio_handle_asic_interrupt(dev, 1);
-
-	return handled ? IRQ_HANDLED : IRQ_NONE;
-}
-
-/* chip->spinlock is already locked */
-static void pcmuio_start_intr(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	int asic = pcmuio_subdevice_to_asic(s);
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int bits = 0;
-	unsigned int pol_bits = 0;
-	int i;
-
-	chip->enabled_mask = 0;
-	chip->active = 1;
-	if (cmd->chanlist) {
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			unsigned int chanspec = cmd->chanlist[i];
-			unsigned int chan = CR_CHAN(chanspec);
-			unsigned int range = CR_RANGE(chanspec);
-			unsigned int aref = CR_AREF(chanspec);
-
-			bits |= (1 << chan);
-			pol_bits |= ((aref || range) ? 1 : 0) << chan;
-		}
-	}
-	bits &= ((1 << s->n_chan) - 1);
-	chip->enabled_mask = bits;
-
-	/* set pol and enab intrs for this subdev.. */
-	pcmuio_write(dev, pol_bits, asic, PCMUIO_PAGE_POL, 0);
-	pcmuio_write(dev, bits, asic, PCMUIO_PAGE_ENAB, 0);
-}
-
-static int pcmuio_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	int asic = pcmuio_subdevice_to_asic(s);
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-	unsigned long flags;
-
-	spin_lock_irqsave(&chip->spinlock, flags);
-	if (chip->active)
-		pcmuio_stop_intr(dev, s);
-	spin_unlock_irqrestore(&chip->spinlock, flags);
-
-	return 0;
-}
-
-static int pcmuio_inttrig_start_intr(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     unsigned int trig_num)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int asic = pcmuio_subdevice_to_asic(s);
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-	unsigned long flags;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	spin_lock_irqsave(&chip->spinlock, flags);
-	s->async->inttrig = NULL;
-	if (chip->active)
-		pcmuio_start_intr(dev, s);
-
-	spin_unlock_irqrestore(&chip->spinlock, flags);
-
-	return 1;
-}
-
-/*
- * 'do_cmd' function for an 'INTERRUPT' subdevice.
- */
-static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct pcmuio_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int asic = pcmuio_subdevice_to_asic(s);
-	struct pcmuio_asic *chip = &devpriv->asics[asic];
-	unsigned long flags;
-
-	spin_lock_irqsave(&chip->spinlock, flags);
-	chip->active = 1;
-
-	/* Set up start of acquisition. */
-	if (cmd->start_src == TRIG_INT)
-		s->async->inttrig = pcmuio_inttrig_start_intr;
-	else	/* TRIG_NOW */
-		pcmuio_start_intr(dev, s);
-
-	spin_unlock_irqrestore(&chip->spinlock, flags);
-
-	return 0;
-}
-
-static int pcmuio_cmdtest(struct comedi_device *dev,
-			  struct comedi_subdevice *s,
-			  struct comedi_cmd *cmd)
-{
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	/* if (err) return 4; */
-
-	return 0;
-}
-
-static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct pcmuio_board *board = dev->board_ptr;
-	struct comedi_subdevice *s;
-	struct pcmuio_private *devpriv;
-	int ret;
-	int i;
-
-	ret = comedi_request_region(dev, it->options[0],
-				    board->num_asics * PCMUIO_ASIC_IOSIZE);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	for (i = 0; i < PCMUIO_MAX_ASICS; ++i) {
-		struct pcmuio_asic *chip = &devpriv->asics[i];
-
-		spin_lock_init(&chip->pagelock);
-		spin_lock_init(&chip->spinlock);
-	}
-
-	pcmuio_reset(dev);
-
-	if (it->options[1]) {
-		/* request the irq for the 1st asic */
-		ret = request_irq(it->options[1], pcmuio_interrupt, 0,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = it->options[1];
-	}
-
-	if (board->num_asics == 2) {
-		if (it->options[2] == dev->irq) {
-			/* the same irq (or none) is used by both asics */
-			devpriv->irq2 = it->options[2];
-		} else if (it->options[2]) {
-			/* request the irq for the 2nd asic */
-			ret = request_irq(it->options[2], pcmuio_interrupt, 0,
-					  dev->board_name, dev);
-			if (ret == 0)
-				devpriv->irq2 = it->options[2];
-		}
-	}
-
-	ret = comedi_alloc_subdevices(dev, board->num_asics * 2);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < dev->n_subdevices; ++i) {
-		s = &dev->subdevices[i];
-		s->type		= COMEDI_SUBD_DIO;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-		s->n_chan	= 24;
-		s->maxdata	= 1;
-		s->range_table	= &range_digital;
-		s->insn_bits	= pcmuio_dio_insn_bits;
-		s->insn_config	= pcmuio_dio_insn_config;
-
-		/* subdevices 0 and 2 can support interrupts */
-		if ((i == 0 && dev->irq) || (i == 2 && devpriv->irq2)) {
-			/* setup the interrupt subdevice */
-			dev->read_subdev = s;
-			s->subdev_flags	|= SDF_CMD_READ | SDF_LSAMPL |
-					   SDF_PACKED;
-			s->len_chanlist	= s->n_chan;
-			s->cancel	= pcmuio_cancel;
-			s->do_cmd	= pcmuio_cmd;
-			s->do_cmdtest	= pcmuio_cmdtest;
-		}
-	}
-
-	return 0;
-}
-
-static void pcmuio_detach(struct comedi_device *dev)
-{
-	struct pcmuio_private *devpriv = dev->private;
-
-	if (devpriv) {
-		pcmuio_reset(dev);
-
-		/* free the 2nd irq if used, the core will free the 1st one */
-		if (devpriv->irq2 && devpriv->irq2 != dev->irq)
-			free_irq(devpriv->irq2, dev);
-	}
-	comedi_legacy_detach(dev);
-}
-
-static struct comedi_driver pcmuio_driver = {
-	.driver_name	= "pcmuio",
-	.module		= THIS_MODULE,
-	.attach		= pcmuio_attach,
-	.detach		= pcmuio_detach,
-	.board_name	= &pcmuio_boards[0].name,
-	.offset		= sizeof(struct pcmuio_board),
-	.num_names	= ARRAY_SIZE(pcmuio_boards),
-};
-module_comedi_driver(pcmuio_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/plx9052.h b/drivers/staging/comedi/drivers/plx9052.h
deleted file mode 100644
index fbcf25069807..000000000000
--- a/drivers/staging/comedi/drivers/plx9052.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
-    comedi/drivers/plx9052.h
-    Definitions for the PLX-9052 PCI interface chip
-
-    Copyright (C) 2002 MEV Ltd. <http://www.mev.co.uk/>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#ifndef _PLX9052_H_
-#define _PLX9052_H_
-
-/*
- * INTCSR - Interrupt Control/Status register
- */
-#define PLX9052_INTCSR			0x4c
-#define PLX9052_INTCSR_LI1ENAB		(1 << 0)  /* LI1 enabled */
-#define PLX9052_INTCSR_LI1POL		(1 << 1)  /* LI1 active high */
-#define PLX9052_INTCSR_LI1STAT		(1 << 2)  /* LI1 active */
-#define PLX9052_INTCSR_LI2ENAB		(1 << 3)  /* LI2 enabled */
-#define PLX9052_INTCSR_LI2POL		(1 << 4)  /* LI2 active high */
-#define PLX9052_INTCSR_LI2STAT		(1 << 5)  /* LI2 active */
-#define PLX9052_INTCSR_PCIENAB		(1 << 6)  /* PCIINT enabled */
-#define PLX9052_INTCSR_SOFTINT		(1 << 7)  /* generate soft int */
-#define PLX9052_INTCSR_LI1SEL		(1 << 8)  /* LI1 edge */
-#define PLX9052_INTCSR_LI2SEL		(1 << 9)  /* LI2 edge */
-#define PLX9052_INTCSR_LI1CLRINT	(1 << 10) /* LI1 clear int */
-#define PLX9052_INTCSR_LI2CLRINT	(1 << 11) /* LI2 clear int */
-#define PLX9052_INTCSR_ISAMODE		(1 << 12) /* ISA interface mode */
-
-/*
- * CNTRL - User I/O, Direct Slave Response, Serial EEPROM, and
- * Initialization Control register
- */
-#define PLX9052_CNTRL			0x50
-#define PLX9052_CNTRL_WAITO		(1 << 0)  /* UIO0 or WAITO# select */
-#define PLX9052_CNTRL_UIO0_DIR		(1 << 1)  /* UIO0 direction */
-#define PLX9052_CNTRL_UIO0_DATA		(1 << 2)  /* UIO0 data */
-#define PLX9052_CNTRL_LLOCKO		(1 << 3)  /* UIO1 or LLOCKo# select */
-#define PLX9052_CNTRL_UIO1_DIR		(1 << 4)  /* UIO1 direction */
-#define PLX9052_CNTRL_UIO1_DATA		(1 << 5)  /* UIO1 data */
-#define PLX9052_CNTRL_CS2		(1 << 6)  /* UIO2 or CS2# select */
-#define PLX9052_CNTRL_UIO2_DIR		(1 << 7)  /* UIO2 direction */
-#define PLX9052_CNTRL_UIO2_DATA		(1 << 8)  /* UIO2 data */
-#define PLX9052_CNTRL_CS3		(1 << 9)  /* UIO3 or CS3# select */
-#define PLX9052_CNTRL_UIO3_DIR		(1 << 10) /* UIO3 direction */
-#define PLX9052_CNTRL_UIO3_DATA		(1 << 11) /* UIO3 data */
-#define PLX9052_CNTRL_PCIBAR01		(0 << 12) /* bar 0 (mem) and 1 (I/O) */
-#define PLX9052_CNTRL_PCIBAR0		(1 << 12) /* bar 0 (mem) only */
-#define PLX9052_CNTRL_PCIBAR1		(2 << 12) /* bar 1 (I/O) only */
-#define PLX9052_CNTRL_PCI2_1_FEATURES	(1 << 14) /* PCI r2.1 features enabled */
-#define PLX9052_CNTRL_PCI_R_W_FLUSH	(1 << 15) /* read w/write flush mode */
-#define PLX9052_CNTRL_PCI_R_NO_FLUSH	(1 << 16) /* read no flush mode */
-#define PLX9052_CNTRL_PCI_R_NO_WRITE	(1 << 17) /* read no write mode */
-#define PLX9052_CNTRL_PCI_W_RELEASE	(1 << 18) /* write release bus mode */
-#define PLX9052_CNTRL_RETRY_CLKS(x)	(((x) & 0xf) << 19) /* slave retry clks */
-#define PLX9052_CNTRL_LOCK_ENAB		(1 << 23) /* slave LOCK# enable */
-#define PLX9052_CNTRL_EEPROM_MASK	(0x1f << 24) /* EEPROM bits */
-#define PLX9052_CNTRL_EEPROM_CLK	(1 << 24) /* EEPROM clock */
-#define PLX9052_CNTRL_EEPROM_CS		(1 << 25) /* EEPROM chip select */
-#define PLX9052_CNTRL_EEPROM_DOUT	(1 << 26) /* EEPROM write bit */
-#define PLX9052_CNTRL_EEPROM_DIN	(1 << 27) /* EEPROM read bit */
-#define PLX9052_CNTRL_EEPROM_PRESENT	(1 << 28) /* EEPROM present */
-#define PLX9052_CNTRL_RELOAD_CFG	(1 << 29) /* reload configuration */
-#define PLX9052_CNTRL_PCI_RESET		(1 << 30) /* PCI adapter reset */
-#define PLX9052_CNTRL_MASK_REV		(1 << 31) /* mask revision */
-
-#endif /* _PLX9052_H_ */
diff --git a/drivers/staging/comedi/drivers/plx9080.h b/drivers/staging/comedi/drivers/plx9080.h
deleted file mode 100644
index 25706531b885..000000000000
--- a/drivers/staging/comedi/drivers/plx9080.h
+++ /dev/null
@@ -1,422 +0,0 @@
-/* plx9080.h
- *
- * Copyright (C) 2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
- *
- * I modified this file from the plx9060.h header for the
- * wanXL device driver in the linux kernel,
- * for the register offsets and bit definitions.  Made minor modifications,
- * added plx9080 registers and
- * stripped out stuff that was specifically for the wanXL driver.
- * Note: I've only made sure the definitions are correct as far
- * as I make use of them.  There are still various plx9060-isms
- * left in this header file.
- *
- ********************************************************************
- *
- * Copyright (C) 1999 RG Studio s.c.
- * Written by Krzysztof Halasa <khc@rgstudio.com.pl>
- *
- * Portions (C) SBE Inc., used by permission.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef __COMEDI_PLX9080_H
-#define __COMEDI_PLX9080_H
-
-/*  descriptor block used for chained dma transfers */
-struct plx_dma_desc {
-	__le32 pci_start_addr;
-	__le32 local_start_addr;
-	/* transfer_size is in bytes, only first 23 bits of register are used */
-	__le32 transfer_size;
-	/* address of next descriptor (quad word aligned), plus some
-	 * additional bits (see PLX_DMA0_DESCRIPTOR_REG) */
-	__le32 next;
-};
-
-/**********************************************************************
-**            Register Offsets and Bit Definitions
-**
-** Note: All offsets zero relative.  IE. Some standard base address
-** must be added to the Register Number to properly access the register.
-**
-**********************************************************************/
-
-#define PLX_LAS0RNG_REG         0x0000	/* L, Local Addr Space 0 Range Register */
-#define PLX_LAS1RNG_REG         0x00f0	/* L, Local Addr Space 1 Range Register */
-#define  LRNG_IO           0x00000001	/* Map to: 1=I/O, 0=Mem */
-#define  LRNG_ANY32        0x00000000	/* Locate anywhere in 32 bit */
-#define  LRNG_LT1MB        0x00000002	/* Locate in 1st meg */
-#define  LRNG_ANY64        0x00000004	/* Locate anywhere in 64 bit */
-#define  LRNG_MEM_MASK     0xfffffff0	/*  bits that specify range for memory io */
-#define  LRNG_IO_MASK     0xfffffffa	/*  bits that specify range for normal io */
-
-#define PLX_LAS0MAP_REG         0x0004	/* L, Local Addr Space 0 Remap Register */
-#define PLX_LAS1MAP_REG         0x00f4	/* L, Local Addr Space 1 Remap Register */
-#define  LMAP_EN           0x00000001	/* Enable slave decode */
-#define  LMAP_MEM_MASK     0xfffffff0	/*  bits that specify decode for memory io */
-#define  LMAP_IO_MASK     0xfffffffa	/*  bits that specify decode bits for normal io */
-
-/* Mode/Arbitration Register.
-*/
-#define PLX_MARB_REG         0x8	/* L, Local Arbitration Register */
-#define PLX_DMAARB_REG      0xac
-enum marb_bits {
-	MARB_LLT_MASK = 0x000000ff,	/* Local Bus Latency Timer */
-	MARB_LPT_MASK = 0x0000ff00,	/* Local Bus Pause Timer */
-	MARB_LTEN = 0x00010000,	/* Latency Timer Enable */
-	MARB_LPEN = 0x00020000,	/* Pause Timer Enable */
-	MARB_BREQ = 0x00040000,	/* Local Bus BREQ Enable */
-	MARB_DMA_PRIORITY_MASK = 0x00180000,
-	MARB_LBDS_GIVE_UP_BUS_MODE = 0x00200000,	/* local bus direct slave give up bus mode */
-	MARB_DS_LLOCK_ENABLE = 0x00400000,	/* direct slave LLOCKo# enable */
-	MARB_PCI_REQUEST_MODE = 0x00800000,
-	MARB_PCIv21_MODE = 0x01000000,	/* pci specification v2.1 mode */
-	MARB_PCI_READ_NO_WRITE_MODE = 0x02000000,
-	MARB_PCI_READ_WITH_WRITE_FLUSH_MODE = 0x04000000,
-	MARB_GATE_TIMER_WITH_BREQ = 0x08000000,	/* gate local bus latency timer with BREQ */
-	MARB_PCI_READ_NO_FLUSH_MODE = 0x10000000,
-	MARB_USE_SUBSYSTEM_IDS = 0x20000000,
-};
-
-#define PLX_BIGEND_REG 0xc
-enum bigend_bits {
-	BIGEND_CONFIG = 0x1,	/* use big endian ordering for configuration register accesses */
-	BIGEND_DIRECT_MASTER = 0x2,
-	BIGEND_DIRECT_SLAVE_LOCAL0 = 0x4,
-	BIGEND_ROM = 0x8,
-	BIGEND_BYTE_LANE = 0x10,	/* use byte lane consisting of most significant bits instead of least significant */
-	BIGEND_DIRECT_SLAVE_LOCAL1 = 0x20,
-	BIGEND_DMA1 = 0x40,
-	BIGEND_DMA0 = 0x80,
-};
-
-/* Note: The Expansion ROM  stuff is only relevant to the PC environment.
-**       This expansion ROM code is executed by the host CPU at boot time.
-**       For this reason no bit definitions are provided here.
-*/
-#define PLX_ROMRNG_REG         0x0010	/* L, Expn ROM Space Range Register */
-#define PLX_ROMMAP_REG         0x0014	/* L, Local Addr Space Range Register */
-
-#define PLX_REGION0_REG         0x0018	/* L, Local Bus Region 0 Descriptor */
-#define  RGN_WIDTH         0x00000002	/* Local bus width bits */
-#define  RGN_8BITS         0x00000000	/* 08 bit Local Bus */
-#define  RGN_16BITS        0x00000001	/* 16 bit Local Bus */
-#define  RGN_32BITS        0x00000002	/* 32 bit Local Bus */
-#define  RGN_MWS           0x0000003C	/* Memory Access Wait States */
-#define  RGN_0MWS          0x00000000
-#define  RGN_1MWS          0x00000004
-#define  RGN_2MWS          0x00000008
-#define  RGN_3MWS          0x0000000C
-#define  RGN_4MWS          0x00000010
-#define  RGN_6MWS          0x00000018
-#define  RGN_8MWS          0x00000020
-#define  RGN_MRE           0x00000040	/* Memory Space Ready Input Enable */
-#define  RGN_MBE           0x00000080	/* Memory Space Bterm Input Enable */
-#define  RGN_READ_PREFETCH_DISABLE 0x00000100
-#define  RGN_ROM_PREFETCH_DISABLE 0x00000200
-#define  RGN_READ_PREFETCH_COUNT_ENABLE 0x00000400
-#define  RGN_RWS           0x003C0000	/* Expn ROM Wait States */
-#define  RGN_RRE           0x00400000	/* ROM Space Ready Input Enable */
-#define  RGN_RBE           0x00800000	/* ROM Space Bterm Input Enable */
-#define  RGN_MBEN          0x01000000	/* Memory Space Burst Enable */
-#define  RGN_RBEN          0x04000000	/* ROM Space Burst Enable */
-#define  RGN_THROT         0x08000000	/* De-assert TRDY when FIFO full */
-#define  RGN_TRD           0xF0000000	/* Target Ready Delay /8 */
-
-#define PLX_REGION1_REG         0x00f8	/* L, Local Bus Region 1 Descriptor */
-
-#define PLX_DMRNG_REG          0x001C	/* L, Direct Master Range Register */
-
-#define PLX_LBAPMEM_REG        0x0020	/* L, Lcl Base Addr for PCI mem space */
-
-#define PLX_LBAPIO_REG         0x0024	/* L, Lcl Base Addr for PCI I/O space */
-
-#define PLX_DMMAP_REG          0x0028	/* L, Direct Master Remap Register */
-#define  DMM_MAE           0x00000001	/* Direct Mstr Memory Acc Enable */
-#define  DMM_IAE           0x00000002	/* Direct Mstr I/O Acc Enable */
-#define  DMM_LCK           0x00000004	/* LOCK Input Enable */
-#define  DMM_PF4           0x00000008	/* Prefetch 4 Mode Enable */
-#define  DMM_THROT         0x00000010	/* Assert IRDY when read FIFO full */
-#define  DMM_PAF0          0x00000000	/* Programmable Almost fill level */
-#define  DMM_PAF1          0x00000020	/* Programmable Almost fill level */
-#define  DMM_PAF2          0x00000040	/* Programmable Almost fill level */
-#define  DMM_PAF3          0x00000060	/* Programmable Almost fill level */
-#define  DMM_PAF4          0x00000080	/* Programmable Almost fill level */
-#define  DMM_PAF5          0x000000A0	/* Programmable Almost fill level */
-#define  DMM_PAF6          0x000000C0	/* Programmable Almost fill level */
-#define  DMM_PAF7          0x000000D0	/* Programmable Almost fill level */
-#define  DMM_MAP           0xFFFF0000	/* Remap Address Bits */
-
-#define PLX_CAR_REG            0x002C	/* L, Configuration Address Register */
-#define  CAR_CT0           0x00000000	/* Config Type 0 */
-#define  CAR_CT1           0x00000001	/* Config Type 1 */
-#define  CAR_REG           0x000000FC	/* Register Number Bits */
-#define  CAR_FUN           0x00000700	/* Function Number Bits */
-#define  CAR_DEV           0x0000F800	/* Device Number Bits */
-#define  CAR_BUS           0x00FF0000	/* Bus Number Bits */
-#define  CAR_CFG           0x80000000	/* Config Spc Access Enable */
-
-#define PLX_DBR_IN_REG         0x0060	/* L, PCI to Local Doorbell Register */
-
-#define PLX_DBR_OUT_REG        0x0064	/* L, Local to PCI Doorbell Register */
-
-#define PLX_INTRCS_REG         0x0068	/* L, Interrupt Control/Status Reg */
-#define  ICS_AERR          0x00000001	/* Assert LSERR on ABORT */
-#define  ICS_PERR          0x00000002	/* Assert LSERR on Parity Error */
-#define  ICS_SERR          0x00000004	/* Generate PCI SERR# */
-#define  ICS_MBIE          0x00000008	/*  mailbox interrupt enable */
-#define  ICS_PIE           0x00000100	/* PCI Interrupt Enable */
-#define  ICS_PDIE          0x00000200	/* PCI Doorbell Interrupt Enable */
-#define  ICS_PAIE          0x00000400	/* PCI Abort Interrupt Enable */
-#define  ICS_PLIE          0x00000800	/* PCI Local Int Enable */
-#define  ICS_RAE           0x00001000	/* Retry Abort Enable */
-#define  ICS_PDIA          0x00002000	/* PCI Doorbell Interrupt Active */
-#define  ICS_PAIA          0x00004000	/* PCI Abort Interrupt Active */
-#define  ICS_LIA           0x00008000	/* Local Interrupt Active */
-#define  ICS_LIE           0x00010000	/* Local Interrupt Enable */
-#define  ICS_LDIE          0x00020000	/* Local Doorbell Int Enable */
-#define  ICS_DMA0_E        0x00040000	/* DMA #0 Interrupt Enable */
-#define  ICS_DMA1_E        0x00080000	/* DMA #1 Interrupt Enable */
-#define  ICS_LDIA          0x00100000	/* Local Doorbell Int Active */
-#define  ICS_DMA0_A        0x00200000	/* DMA #0 Interrupt Active */
-#define  ICS_DMA1_A        0x00400000	/* DMA #1 Interrupt Active */
-#define  ICS_BIA           0x00800000	/* BIST Interrupt Active */
-#define  ICS_TA_DM         0x01000000	/* Target Abort - Direct Master */
-#define  ICS_TA_DMA0       0x02000000	/* Target Abort - DMA #0 */
-#define  ICS_TA_DMA1       0x04000000	/* Target Abort - DMA #1 */
-#define  ICS_TA_RA         0x08000000	/* Target Abort - Retry Timeout */
-#define  ICS_MBIA(x)       (0x10000000 << ((x) & 0x3))	/*  mailbox x is active */
-
-#define PLX_CONTROL_REG        0x006C	/* L, EEPROM Cntl & PCI Cmd Codes */
-#define  CTL_RDMA          0x0000000E	/* DMA Read Command */
-#define  CTL_WDMA          0x00000070	/* DMA Write Command */
-#define  CTL_RMEM          0x00000600	/* Memory Read Command */
-#define  CTL_WMEM          0x00007000	/* Memory Write Command */
-#define  CTL_USERO         0x00010000	/* USERO output pin control bit */
-#define  CTL_USERI         0x00020000	/* USERI input pin bit */
-#define  CTL_EE_CLK        0x01000000	/* EEPROM Clock line */
-#define  CTL_EE_CS         0x02000000	/* EEPROM Chip Select */
-#define  CTL_EE_W          0x04000000	/* EEPROM Write bit */
-#define  CTL_EE_R          0x08000000	/* EEPROM Read bit */
-#define  CTL_EECHK         0x10000000	/* EEPROM Present bit */
-#define  CTL_EERLD         0x20000000	/* EEPROM Reload Register */
-#define  CTL_RESET         0x40000000	/* !! Adapter Reset !! */
-#define  CTL_READY         0x80000000	/* Local Init Done */
-
-#define PLX_ID_REG	0x70	/*  hard-coded plx vendor and device ids */
-
-#define PLX_REVISION_REG	0x74	/*  silicon revision */
-
-#define PLX_DMA0_MODE_REG	0x80	/*  dma channel 0 mode register */
-#define PLX_DMA1_MODE_REG	0x94	/*  dma channel 0 mode register */
-#define  PLX_LOCAL_BUS_16_WIDE_BITS	0x1
-#define  PLX_LOCAL_BUS_32_WIDE_BITS	0x3
-#define  PLX_LOCAL_BUS_WIDTH_MASK	0x3
-#define  PLX_DMA_EN_READYIN_BIT	0x40	/*  enable ready in input */
-#define  PLX_EN_BTERM_BIT	0x80	/*  enable BTERM# input */
-#define  PLX_DMA_LOCAL_BURST_EN_BIT	0x100	/*  enable local burst mode */
-#define  PLX_EN_CHAIN_BIT	0x200	/*  enables chaining */
-#define  PLX_EN_DMA_DONE_INTR_BIT	0x400	/*  enables interrupt on dma done */
-#define  PLX_LOCAL_ADDR_CONST_BIT	0x800	/*  hold local address constant (don't increment) */
-#define  PLX_DEMAND_MODE_BIT	0x1000	/*  enables demand-mode for dma transfer */
-#define  PLX_EOT_ENABLE_BIT	0x4000
-#define  PLX_STOP_MODE_BIT 0x8000
-#define  PLX_DMA_INTR_PCI_BIT	0x20000	/*  routes dma interrupt to pci bus (instead of local bus) */
-
-#define PLX_DMA0_PCI_ADDRESS_REG	0x84	/*  pci address that dma transfers start at */
-#define PLX_DMA1_PCI_ADDRESS_REG	0x98
-
-#define PLX_DMA0_LOCAL_ADDRESS_REG	0x88	/*  local address that dma transfers start at */
-#define PLX_DMA1_LOCAL_ADDRESS_REG	0x9c
-
-#define PLX_DMA0_TRANSFER_SIZE_REG	0x8c	/*  number of bytes to transfer (first 23 bits) */
-#define PLX_DMA1_TRANSFER_SIZE_REG	0xa0
-
-#define PLX_DMA0_DESCRIPTOR_REG	0x90	/*  descriptor pointer register */
-#define PLX_DMA1_DESCRIPTOR_REG	0xa4
-#define  PLX_DESC_IN_PCI_BIT	0x1	/*  descriptor is located in pci space (not local space) */
-#define  PLX_END_OF_CHAIN_BIT	0x2	/*  end of chain bit */
-#define  PLX_INTR_TERM_COUNT	0x4	/*  interrupt when this descriptor's transfer is finished */
-#define  PLX_XFER_LOCAL_TO_PCI 0x8	/*  transfer from local to pci bus (not pci to local) */
-
-#define PLX_DMA0_CS_REG	0xa8	/*  command status register */
-#define PLX_DMA1_CS_REG	0xa9
-#define  PLX_DMA_EN_BIT	0x1	/*  enable dma channel */
-#define  PLX_DMA_START_BIT	0x2	/*  start dma transfer */
-#define  PLX_DMA_ABORT_BIT	0x4	/*  abort dma transfer */
-#define  PLX_CLEAR_DMA_INTR_BIT	0x8	/*  clear dma interrupt */
-#define  PLX_DMA_DONE_BIT	0x10	/*  transfer done status bit */
-
-#define PLX_DMA0_THRESHOLD_REG	0xb0	/*  command status register */
-
-/*
- * Accesses near the end of memory can cause the PLX chip
- * to pre-fetch data off of end-of-ram.  Limit the size of
- * memory so host-side accesses cannot occur.
- */
-
-#define PLX_PREFETCH   32
-
-/*
- * The PCI Interface, via the PCI-9060 Chip, has up to eight (8) Mailbox
- * Registers.  The PUTS (Power-Up Test Suite) handles the board-side
- * interface/interaction using the first 4 registers.  Specifications for
- * the use of the full PUTS' command and status interface is contained
- * within a separate SBE PUTS Manual.  The Host-Side Device Driver only
- * uses a subset of the full PUTS interface.
- */
-
-/*****************************************/
-/***    MAILBOX #(-1) - MEM ACCESS STS ***/
-/*****************************************/
-
-#define MBX_STS_VALID      0x57584744	/* 'WXGD' */
-#define MBX_STS_DILAV      0x44475857	/* swapped = 'DGXW' */
-
-/*****************************************/
-/***    MAILBOX #0  -  PUTS STATUS     ***/
-/*****************************************/
-
-#define MBX_STS_MASK       0x000000ff	/* PUTS Status Register bits */
-#define MBX_STS_TMASK      0x0000000f	/* register bits for TEST number */
-
-#define MBX_STS_PCIRESET   0x00000100	/* Host issued PCI reset request */
-#define MBX_STS_BUSY       0x00000080	/* PUTS is in progress */
-#define MBX_STS_ERROR      0x00000040	/* PUTS has failed */
-#define MBX_STS_RESERVED   0x000000c0	/* Undefined -> status in transition.
-					   We are in process of changing
-					   bits; we SET Error bit before
-					   RESET of Busy bit */
-
-#define MBX_RESERVED_5     0x00000020	/* FYI: reserved/unused bit */
-#define MBX_RESERVED_4     0x00000010	/* FYI: reserved/unused bit */
-
-/******************************************/
-/***    MAILBOX #1  -  PUTS COMMANDS    ***/
-/******************************************/
-
-/*
- * Any attempt to execute an unimplement command results in the PUTS
- * interface executing a NOOP and continuing as if the offending command
- * completed normally.  Note: this supplies a simple method to interrogate
- * mailbox command processing functionality.
- */
-
-#define MBX_CMD_MASK       0xffff0000	/* PUTS Command Register bits */
-
-#define MBX_CMD_ABORTJ     0x85000000	/* abort and jump */
-#define MBX_CMD_RESETP     0x86000000	/* reset and pause at start */
-#define MBX_CMD_PAUSE      0x87000000	/* pause immediately */
-#define MBX_CMD_PAUSEC     0x88000000	/* pause on completion */
-#define MBX_CMD_RESUME     0x89000000	/* resume operation */
-#define MBX_CMD_STEP       0x8a000000	/* single step tests */
-
-#define MBX_CMD_BSWAP      0x8c000000	/* identify byte swap scheme */
-#define MBX_CMD_BSWAP_0    0x8c000000	/* use scheme 0 */
-#define MBX_CMD_BSWAP_1    0x8c000001	/* use scheme 1 */
-
-#define MBX_CMD_SETHMS     0x8d000000	/* setup host memory access window
-					   size */
-#define MBX_CMD_SETHBA     0x8e000000	/* setup host memory access base
-					   address */
-#define MBX_CMD_MGO        0x8f000000	/* perform memory setup and continue
-					   (IE. Done) */
-#define MBX_CMD_NOOP       0xFF000000	/* dummy, illegal command */
-
-/*****************************************/
-/***    MAILBOX #2  -  MEMORY SIZE     ***/
-/*****************************************/
-
-#define MBX_MEMSZ_MASK     0xffff0000	/* PUTS Memory Size Register bits */
-
-#define MBX_MEMSZ_128KB    0x00020000	/* 128 kilobyte board */
-#define MBX_MEMSZ_256KB    0x00040000	/* 256 kilobyte board */
-#define MBX_MEMSZ_512KB    0x00080000	/* 512 kilobyte board */
-#define MBX_MEMSZ_1MB      0x00100000	/* 1 megabyte board */
-#define MBX_MEMSZ_2MB      0x00200000	/* 2 megabyte board */
-#define MBX_MEMSZ_4MB      0x00400000	/* 4 megabyte board */
-#define MBX_MEMSZ_8MB      0x00800000	/* 8 megabyte board */
-#define MBX_MEMSZ_16MB     0x01000000	/* 16 megabyte board */
-
-/***************************************/
-/***    MAILBOX #2  -  BOARD TYPE    ***/
-/***************************************/
-
-#define MBX_BTYPE_MASK          0x0000ffff	/* PUTS Board Type Register */
-#define MBX_BTYPE_FAMILY_MASK   0x0000ff00	/* PUTS Board Family Register */
-#define MBX_BTYPE_SUBTYPE_MASK  0x000000ff	/* PUTS Board Subtype */
-
-#define MBX_BTYPE_PLX9060       0x00000100	/* PLX family type */
-#define MBX_BTYPE_PLX9080       0x00000300	/* PLX wanXL100s family type */
-
-#define MBX_BTYPE_WANXL_4       0x00000104	/* wanXL400, 4-port */
-#define MBX_BTYPE_WANXL_2       0x00000102	/* wanXL200, 2-port */
-#define MBX_BTYPE_WANXL_1s      0x00000301	/* wanXL100s, 1-port */
-#define MBX_BTYPE_WANXL_1t      0x00000401	/* wanXL100T1, 1-port */
-
-/*****************************************/
-/***    MAILBOX #3  -  SHMQ MAILBOX    ***/
-/*****************************************/
-
-#define MBX_SMBX_MASK           0x000000ff	/* PUTS SHMQ Mailbox bits */
-
-/***************************************/
-/***    GENERIC HOST-SIDE DRIVER     ***/
-/***************************************/
-
-#define MBX_ERR    0
-#define MBX_OK     1
-
-/* mailbox check routine - type of testing */
-#define MBXCHK_STS      0x00	/* check for PUTS status */
-#define MBXCHK_NOWAIT   0x01	/* dont care about PUTS status */
-
-/* system allocates this many bytes for address mapping mailbox space */
-#define MBX_ADDR_SPACE_360 0x80	/* wanXL100s/200/400 */
-#define MBX_ADDR_MASK_360 (MBX_ADDR_SPACE_360-1)
-
-static inline int plx9080_abort_dma(void __iomem *iobase, unsigned int channel)
-{
-	void __iomem *dma_cs_addr;
-	uint8_t dma_status;
-	const int timeout = 10000;
-	unsigned int i;
-
-	if (channel)
-		dma_cs_addr = iobase + PLX_DMA1_CS_REG;
-	else
-		dma_cs_addr = iobase + PLX_DMA0_CS_REG;
-
-	/*  abort dma transfer if necessary */
-	dma_status = readb(dma_cs_addr);
-	if ((dma_status & PLX_DMA_EN_BIT) == 0)
-		return 0;
-
-	/*  wait to make sure done bit is zero */
-	for (i = 0; (dma_status & PLX_DMA_DONE_BIT) && i < timeout; i++) {
-		udelay(1);
-		dma_status = readb(dma_cs_addr);
-	}
-	if (i == timeout)
-		return -ETIMEDOUT;
-
-	/*  disable and abort channel */
-	writeb(PLX_DMA_ABORT_BIT, dma_cs_addr);
-	/*  wait for dma done bit */
-	dma_status = readb(dma_cs_addr);
-	for (i = 0; (dma_status & PLX_DMA_DONE_BIT) == 0 && i < timeout; i++) {
-		udelay(1);
-		dma_status = readb(dma_cs_addr);
-	}
-	if (i == timeout)
-		return -ETIMEDOUT;
-
-	return 0;
-}
-
-#endif /* __COMEDI_PLX9080_H */
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
deleted file mode 100644
index 152cb146fc16..000000000000
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ /dev/null
@@ -1,815 +0,0 @@
-/*======================================================================
-
-    comedi/drivers/quatech_daqp_cs.c
-
-    Quatech DAQP PCMCIA data capture cards COMEDI client driver
-    Copyright (C) 2000, 2003 Brent Baccala <baccala@freesoft.org>
-    The DAQP interface code in this file is released into the public domain.
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998 David A. Schleef <ds@schleef.org>
-    http://www.comedi.org/
-
-    quatech_daqp_cs.c 1.10
-
-    Documentation for the DAQP PCMCIA cards can be found on Quatech's site:
-
-		ftp://ftp.quatech.com/Manuals/daqp-208.pdf
-
-    This manual is for both the DAQP-208 and the DAQP-308.
-
-    What works:
-
-	- A/D conversion
-	    - 8 channels
-	    - 4 gain ranges
-	    - ground ref or differential
-	    - single-shot and timed both supported
-	- D/A conversion, single-shot
-	- digital I/O
-
-    What doesn't:
-
-	- any kind of triggering - external or D/A channel 1
-	- the card's optional expansion board
-	- the card's timer (for anything other than A/D conversion)
-	- D/A update modes other than immediate (i.e, timed)
-	- fancier timing modes
-	- setting card's FIFO buffer thresholds to anything but default
-
-======================================================================*/
-
-/*
-Driver: quatech_daqp_cs
-Description: Quatech DAQP PCMCIA data capture cards
-Author: Brent Baccala <baccala@freesoft.org>
-Status: works
-Devices: [Quatech] DAQP-208 (daqp), DAQP-308
-*/
-
-#include <linux/module.h>
-#include <linux/semaphore.h>
-#include <linux/completion.h>
-
-#include "../comedi_pcmcia.h"
-
-struct daqp_private {
-	int stop;
-
-	enum { semaphore, buffer } interrupt_mode;
-
-	struct completion eos;
-};
-
-/* The DAQP communicates with the system through a 16 byte I/O window. */
-
-#define DAQP_FIFO_SIZE		4096
-
-#define DAQP_FIFO		0
-#define DAQP_SCANLIST		1
-#define DAQP_CONTROL		2
-#define DAQP_STATUS		2
-#define DAQP_DIGITAL_IO		3
-#define DAQP_PACER_LOW		4
-#define DAQP_PACER_MID		5
-#define DAQP_PACER_HIGH		6
-#define DAQP_COMMAND		7
-#define DAQP_DA			8
-#define DAQP_TIMER		10
-#define DAQP_AUX		15
-
-#define DAQP_SCANLIST_DIFFERENTIAL	0x4000
-#define DAQP_SCANLIST_GAIN(x)		((x)<<12)
-#define DAQP_SCANLIST_CHANNEL(x)	((x)<<8)
-#define DAQP_SCANLIST_START		0x0080
-#define DAQP_SCANLIST_EXT_GAIN(x)	((x)<<4)
-#define DAQP_SCANLIST_EXT_CHANNEL(x)	(x)
-
-#define DAQP_CONTROL_PACER_100kHz	0xc0
-#define DAQP_CONTROL_PACER_1MHz		0x80
-#define DAQP_CONTROL_PACER_5MHz		0x40
-#define DAQP_CONTROL_PACER_EXTERNAL	0x00
-#define DAQP_CONTORL_EXPANSION		0x20
-#define DAQP_CONTROL_EOS_INT_ENABLE	0x10
-#define DAQP_CONTROL_FIFO_INT_ENABLE	0x08
-#define DAQP_CONTROL_TRIGGER_ONESHOT	0x00
-#define DAQP_CONTROL_TRIGGER_CONTINUOUS	0x04
-#define DAQP_CONTROL_TRIGGER_INTERNAL	0x00
-#define DAQP_CONTROL_TRIGGER_EXTERNAL	0x02
-#define DAQP_CONTROL_TRIGGER_RISING	0x00
-#define DAQP_CONTROL_TRIGGER_FALLING	0x01
-
-#define DAQP_STATUS_IDLE		0x80
-#define DAQP_STATUS_RUNNING		0x40
-#define DAQP_STATUS_EVENTS		0x38
-#define DAQP_STATUS_DATA_LOST		0x20
-#define DAQP_STATUS_END_OF_SCAN		0x10
-#define DAQP_STATUS_FIFO_THRESHOLD	0x08
-#define DAQP_STATUS_FIFO_FULL		0x04
-#define DAQP_STATUS_FIFO_NEARFULL	0x02
-#define DAQP_STATUS_FIFO_EMPTY		0x01
-
-#define DAQP_COMMAND_ARM		0x80
-#define DAQP_COMMAND_RSTF		0x40
-#define DAQP_COMMAND_RSTQ		0x20
-#define DAQP_COMMAND_STOP		0x10
-#define DAQP_COMMAND_LATCH		0x08
-#define DAQP_COMMAND_100kHz		0x00
-#define DAQP_COMMAND_50kHz		0x02
-#define DAQP_COMMAND_25kHz		0x04
-#define DAQP_COMMAND_FIFO_DATA		0x01
-#define DAQP_COMMAND_FIFO_PROGRAM	0x00
-
-#define DAQP_AUX_TRIGGER_TTL		0x00
-#define DAQP_AUX_TRIGGER_ANALOG		0x80
-#define DAQP_AUX_TRIGGER_PRETRIGGER	0x40
-#define DAQP_AUX_TIMER_INT_ENABLE	0x20
-#define DAQP_AUX_TIMER_RELOAD		0x00
-#define DAQP_AUX_TIMER_PAUSE		0x08
-#define DAQP_AUX_TIMER_GO		0x10
-#define DAQP_AUX_TIMER_GO_EXTERNAL	0x18
-#define DAQP_AUX_TIMER_EXTERNAL_SRC	0x04
-#define DAQP_AUX_TIMER_INTERNAL_SRC	0x00
-#define DAQP_AUX_DA_DIRECT		0x00
-#define DAQP_AUX_DA_OVERFLOW		0x01
-#define DAQP_AUX_DA_EXTERNAL		0x02
-#define DAQP_AUX_DA_PACER		0x03
-
-#define DAQP_AUX_RUNNING		0x80
-#define DAQP_AUX_TRIGGERED		0x40
-#define DAQP_AUX_DA_BUFFER		0x20
-#define DAQP_AUX_TIMER_OVERFLOW		0x10
-#define DAQP_AUX_CONVERSION		0x08
-#define DAQP_AUX_DATA_LOST		0x04
-#define DAQP_AUX_FIFO_NEARFULL		0x02
-#define DAQP_AUX_FIFO_EMPTY		0x01
-
-static const struct comedi_lrange range_daqp_ai = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(2.5),
-		BIP_RANGE(1.25)
-	}
-};
-
-/* Cancel a running acquisition */
-
-static int daqp_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct daqp_private *devpriv = dev->private;
-
-	if (devpriv->stop)
-		return -EIO;
-
-	outb(DAQP_COMMAND_STOP, dev->iobase + DAQP_COMMAND);
-
-	/* flush any linguring data in FIFO - superfluous here */
-	/* outb(DAQP_COMMAND_RSTF, dev->iobase+DAQP_COMMAND); */
-
-	devpriv->interrupt_mode = semaphore;
-
-	return 0;
-}
-
-/* Interrupt handler
- *
- * Operates in one of two modes.  If devpriv->interrupt_mode is
- * 'semaphore', just signal the devpriv->eos completion and return
- * (one-shot mode).  Otherwise (continuous mode), read data in from
- * the card, transfer it to the buffer provided by the higher-level
- * comedi kernel module, and signal various comedi callback routines,
- * which run pretty quick.
- */
-static enum irqreturn daqp_interrupt(int irq, void *dev_id)
-{
-	struct comedi_device *dev = dev_id;
-	struct daqp_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int loop_limit = 10000;
-	int status;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	switch (devpriv->interrupt_mode) {
-	case semaphore:
-		complete(&devpriv->eos);
-		break;
-
-	case buffer:
-		while (!((status = inb(dev->iobase + DAQP_STATUS))
-			 & DAQP_STATUS_FIFO_EMPTY)) {
-			unsigned short data;
-
-			if (status & DAQP_STATUS_DATA_LOST) {
-				s->async->events |= COMEDI_CB_OVERFLOW;
-				dev_warn(dev->class_dev, "data lost\n");
-				break;
-			}
-
-			data = inb(dev->iobase + DAQP_FIFO);
-			data |= inb(dev->iobase + DAQP_FIFO) << 8;
-			data ^= 0x8000;
-
-			comedi_buf_write_samples(s, &data, 1);
-
-			/* If there's a limit, decrement it
-			 * and stop conversion if zero
-			 */
-
-			if (cmd->stop_src == TRIG_COUNT &&
-			    s->async->scans_done >= cmd->stop_arg) {
-				s->async->events |= COMEDI_CB_EOA;
-				break;
-			}
-
-			if ((loop_limit--) <= 0)
-				break;
-		}
-
-		if (loop_limit <= 0) {
-			dev_warn(dev->class_dev,
-				 "loop_limit reached in daqp_interrupt()\n");
-			s->async->events |= COMEDI_CB_ERROR;
-		}
-
-		comedi_handle_events(dev, s);
-	}
-	return IRQ_HANDLED;
-}
-
-static void daqp_ai_set_one_scanlist_entry(struct comedi_device *dev,
-					   unsigned int chanspec,
-					   int start)
-{
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int aref = CR_AREF(chanspec);
-	unsigned int val;
-
-	val = DAQP_SCANLIST_CHANNEL(chan) | DAQP_SCANLIST_GAIN(range);
-
-	if (aref == AREF_DIFF)
-		val |= DAQP_SCANLIST_DIFFERENTIAL;
-
-	if (start)
-		val |= DAQP_SCANLIST_START;
-
-	outb(val & 0xff, dev->iobase + DAQP_SCANLIST);
-	outb((val >> 8) & 0xff, dev->iobase + DAQP_SCANLIST);
-}
-
-/* One-shot analog data acquisition routine */
-
-static int daqp_ai_insn_read(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn, unsigned int *data)
-{
-	struct daqp_private *devpriv = dev->private;
-	int i;
-	int v;
-	int counter = 10000;
-
-	if (devpriv->stop)
-		return -EIO;
-
-	/* Stop any running conversion */
-	daqp_ai_cancel(dev, s);
-
-	outb(0, dev->iobase + DAQP_AUX);
-
-	/* Reset scan list queue */
-	outb(DAQP_COMMAND_RSTQ, dev->iobase + DAQP_COMMAND);
-
-	/* Program one scan list entry */
-	daqp_ai_set_one_scanlist_entry(dev, insn->chanspec, 1);
-
-	/* Reset data FIFO (see page 28 of DAQP User's Manual) */
-
-	outb(DAQP_COMMAND_RSTF, dev->iobase + DAQP_COMMAND);
-
-	/* Set trigger */
-
-	v = DAQP_CONTROL_TRIGGER_ONESHOT | DAQP_CONTROL_TRIGGER_INTERNAL
-	    | DAQP_CONTROL_PACER_100kHz | DAQP_CONTROL_EOS_INT_ENABLE;
-
-	outb(v, dev->iobase + DAQP_CONTROL);
-
-	/* Reset any pending interrupts (my card has a tendency to require
-	 * require multiple reads on the status register to achieve this)
-	 */
-
-	while (--counter
-	       && (inb(dev->iobase + DAQP_STATUS) & DAQP_STATUS_EVENTS))
-		;
-	if (!counter) {
-		dev_err(dev->class_dev,
-			"couldn't clear interrupts in status register\n");
-		return -1;
-	}
-
-	init_completion(&devpriv->eos);
-	devpriv->interrupt_mode = semaphore;
-
-	for (i = 0; i < insn->n; i++) {
-		/* Start conversion */
-		outb(DAQP_COMMAND_ARM | DAQP_COMMAND_FIFO_DATA,
-		     dev->iobase + DAQP_COMMAND);
-
-		/* Wait for interrupt service routine to unblock completion */
-		/* Maybe could use a timeout here, but it's interruptible */
-		if (wait_for_completion_interruptible(&devpriv->eos))
-			return -EINTR;
-
-		data[i] = inb(dev->iobase + DAQP_FIFO);
-		data[i] |= inb(dev->iobase + DAQP_FIFO) << 8;
-		data[i] ^= 0x8000;
-	}
-
-	return insn->n;
-}
-
-/* This function converts ns nanoseconds to a counter value suitable
- * for programming the device.  We always use the DAQP's 5 MHz clock,
- * which with its 24-bit counter, allows values up to 84 seconds.
- * Also, the function adjusts ns so that it cooresponds to the actual
- * time that the device will use.
- */
-
-static int daqp_ns_to_timer(unsigned int *ns, unsigned int flags)
-{
-	int timer;
-
-	timer = *ns / 200;
-	*ns = timer * 200;
-
-	return timer;
-}
-
-/* cmdtest tests a particular command to see if it is valid.
- * Using the cmdtest ioctl, a user can create a valid cmd
- * and then have it executed by the cmd ioctl.
- *
- * cmdtest returns 1,2,3,4 or 0, depending on which tests
- * the command passes.
- */
-
-static int daqp_ai_cmdtest(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-#define MAX_SPEED	10000	/* 100 kHz - in nanoseconds */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    MAX_SPEED);
-	}
-
-	/* If both scan_begin and convert are both timer values, the only
-	 * way that can make sense is if the scan time is the number of
-	 * conversions times the convert time
-	 */
-
-	if (cmd->scan_begin_src == TRIG_TIMER && cmd->convert_src == TRIG_TIMER
-	    && cmd->scan_begin_arg != cmd->convert_arg * cmd->scan_end_arg) {
-		err |= -EINVAL;
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    MAX_SPEED);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		daqp_ns_to_timer(&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		daqp_ns_to_timer(&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int daqp_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct daqp_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int counter;
-	int scanlist_start_on_every_entry;
-	int threshold;
-
-	int i;
-	int v;
-
-	if (devpriv->stop)
-		return -EIO;
-
-	/* Stop any running conversion */
-	daqp_ai_cancel(dev, s);
-
-	outb(0, dev->iobase + DAQP_AUX);
-
-	/* Reset scan list queue */
-	outb(DAQP_COMMAND_RSTQ, dev->iobase + DAQP_COMMAND);
-
-	/* Program pacer clock
-	 *
-	 * There's two modes we can operate in.  If convert_src is
-	 * TRIG_TIMER, then convert_arg specifies the time between
-	 * each conversion, so we program the pacer clock to that
-	 * frequency and set the SCANLIST_START bit on every scanlist
-	 * entry.  Otherwise, convert_src is TRIG_NOW, which means
-	 * we want the fastest possible conversions, scan_begin_src
-	 * is TRIG_TIMER, and scan_begin_arg specifies the time between
-	 * each scan, so we program the pacer clock to this frequency
-	 * and only set the SCANLIST_START bit on the first entry.
-	 */
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		counter = daqp_ns_to_timer(&cmd->convert_arg, cmd->flags);
-		outb(counter & 0xff, dev->iobase + DAQP_PACER_LOW);
-		outb((counter >> 8) & 0xff, dev->iobase + DAQP_PACER_MID);
-		outb((counter >> 16) & 0xff, dev->iobase + DAQP_PACER_HIGH);
-		scanlist_start_on_every_entry = 1;
-	} else {
-		counter = daqp_ns_to_timer(&cmd->scan_begin_arg, cmd->flags);
-		outb(counter & 0xff, dev->iobase + DAQP_PACER_LOW);
-		outb((counter >> 8) & 0xff, dev->iobase + DAQP_PACER_MID);
-		outb((counter >> 16) & 0xff, dev->iobase + DAQP_PACER_HIGH);
-		scanlist_start_on_every_entry = 0;
-	}
-
-	/* Program scan list */
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		int start = (i == 0 || scanlist_start_on_every_entry);
-
-		daqp_ai_set_one_scanlist_entry(dev, cmd->chanlist[i], start);
-	}
-
-	/* Now it's time to program the FIFO threshold, basically the
-	 * number of samples the card will buffer before it interrupts
-	 * the CPU.
-	 *
-	 * If we don't have a stop count, then use half the size of
-	 * the FIFO (the manufacturer's recommendation).  Consider
-	 * that the FIFO can hold 2K samples (4K bytes).  With the
-	 * threshold set at half the FIFO size, we have a margin of
-	 * error of 1024 samples.  At the chip's maximum sample rate
-	 * of 100,000 Hz, the CPU would have to delay interrupt
-	 * service for a full 10 milliseconds in order to lose data
-	 * here (as opposed to higher up in the kernel).  I've never
-	 * seen it happen.  However, for slow sample rates it may
-	 * buffer too much data and introduce too much delay for the
-	 * user application.
-	 *
-	 * If we have a stop count, then things get more interesting.
-	 * If the stop count is less than the FIFO size (actually
-	 * three-quarters of the FIFO size - see below), we just use
-	 * the stop count itself as the threshold, the card interrupts
-	 * us when that many samples have been taken, and we kill the
-	 * acquisition at that point and are done.  If the stop count
-	 * is larger than that, then we divide it by 2 until it's less
-	 * than three quarters of the FIFO size (we always leave the
-	 * top quarter of the FIFO as protection against sluggish CPU
-	 * interrupt response) and use that as the threshold.  So, if
-	 * the stop count is 4000 samples, we divide by two twice to
-	 * get 1000 samples, use that as the threshold, take four
-	 * interrupts to get our 4000 samples and are done.
-	 *
-	 * The algorithm could be more clever.  For example, if 81000
-	 * samples are requested, we could set the threshold to 1500
-	 * samples and take 54 interrupts to get 81000.  But 54 isn't
-	 * a power of two, so this algorithm won't find that option.
-	 * Instead, it'll set the threshold at 1266 and take 64
-	 * interrupts to get 81024 samples, of which the last 24 will
-	 * be discarded... but we won't get the last interrupt until
-	 * they've been collected.  To find the first option, the
-	 * computer could look at the prime decomposition of the
-	 * sample count (81000 = 3^4 * 5^3 * 2^3) and factor it into a
-	 * threshold (1500 = 3 * 5^3 * 2^2) and an interrupt count (54
-	 * = 3^3 * 2).  Hmmm... a one-line while loop or prime
-	 * decomposition of integers... I'll leave it the way it is.
-	 *
-	 * I'll also note a mini-race condition before ignoring it in
-	 * the code.  Let's say we're taking 4000 samples, as before.
-	 * After 1000 samples, we get an interrupt.  But before that
-	 * interrupt is completely serviced, another sample is taken
-	 * and loaded into the FIFO.  Since the interrupt handler
-	 * empties the FIFO before returning, it will read 1001 samples.
-	 * If that happens four times, we'll end up taking 4004 samples,
-	 * not 4000.  The interrupt handler will discard the extra four
-	 * samples (by halting the acquisition with four samples still
-	 * in the FIFO), but we will have to wait for them.
-	 *
-	 * In short, this code works pretty well, but for either of
-	 * the two reasons noted, might end up waiting for a few more
-	 * samples than actually requested.  Shouldn't make too much
-	 * of a difference.
-	 */
-
-	/* Save away the number of conversions we should perform, and
-	 * compute the FIFO threshold (in bytes, not samples - that's
-	 * why we multiple devpriv->count by 2 = sizeof(sample))
-	 */
-
-	if (cmd->stop_src == TRIG_COUNT) {
-		unsigned long long nsamples;
-		unsigned long long nbytes;
-
-		nsamples = (unsigned long long)cmd->stop_arg *
-			   cmd->scan_end_arg;
-		nbytes = nsamples * comedi_bytes_per_sample(s);
-		while (nbytes > DAQP_FIFO_SIZE * 3 / 4)
-			nbytes /= 2;
-		threshold = nbytes;
-	} else {
-		threshold = DAQP_FIFO_SIZE / 2;
-	}
-
-	/* Reset data FIFO (see page 28 of DAQP User's Manual) */
-
-	outb(DAQP_COMMAND_RSTF, dev->iobase + DAQP_COMMAND);
-
-	/* Set FIFO threshold.  First two bytes are near-empty
-	 * threshold, which is unused; next two bytes are near-full
-	 * threshold.  We computed the number of bytes we want in the
-	 * FIFO when the interrupt is generated, what the card wants
-	 * is actually the number of available bytes left in the FIFO
-	 * when the interrupt is to happen.
-	 */
-
-	outb(0x00, dev->iobase + DAQP_FIFO);
-	outb(0x00, dev->iobase + DAQP_FIFO);
-
-	outb((DAQP_FIFO_SIZE - threshold) & 0xff, dev->iobase + DAQP_FIFO);
-	outb((DAQP_FIFO_SIZE - threshold) >> 8, dev->iobase + DAQP_FIFO);
-
-	/* Set trigger */
-
-	v = DAQP_CONTROL_TRIGGER_CONTINUOUS | DAQP_CONTROL_TRIGGER_INTERNAL
-	    | DAQP_CONTROL_PACER_5MHz | DAQP_CONTROL_FIFO_INT_ENABLE;
-
-	outb(v, dev->iobase + DAQP_CONTROL);
-
-	/* Reset any pending interrupts (my card has a tendency to require
-	 * require multiple reads on the status register to achieve this)
-	 */
-	counter = 100;
-	while (--counter
-	       && (inb(dev->iobase + DAQP_STATUS) & DAQP_STATUS_EVENTS))
-		;
-	if (!counter) {
-		dev_err(dev->class_dev,
-			"couldn't clear interrupts in status register\n");
-		return -1;
-	}
-
-	devpriv->interrupt_mode = buffer;
-
-	/* Start conversion */
-	outb(DAQP_COMMAND_ARM | DAQP_COMMAND_FIFO_DATA,
-	     dev->iobase + DAQP_COMMAND);
-
-	return 0;
-}
-
-static int daqp_ao_insn_write(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	struct daqp_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	if (devpriv->stop)
-		return -EIO;
-
-	/* Make sure D/A update mode is direct update */
-	outb(0, dev->iobase + DAQP_AUX);
-
-	for (i = 0; i > insn->n; i++) {
-		unsigned val = data[i];
-
-		s->readback[chan] = val;
-
-		val &= 0x0fff;
-		val ^= 0x0800;		/* Flip the sign */
-		val |= (chan << 12);
-
-		outw(val, dev->iobase + DAQP_DA);
-	}
-
-	return insn->n;
-}
-
-static int daqp_di_insn_bits(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned int *data)
-{
-	struct daqp_private *devpriv = dev->private;
-
-	if (devpriv->stop)
-		return -EIO;
-
-	data[0] = inb(dev->iobase + DAQP_DIGITAL_IO);
-
-	return insn->n;
-}
-
-static int daqp_do_insn_bits(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned int *data)
-{
-	struct daqp_private *devpriv = dev->private;
-
-	if (devpriv->stop)
-		return -EIO;
-
-	if (comedi_dio_update_state(s, data))
-		outb(s->state, dev->iobase + DAQP_DIGITAL_IO);
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int daqp_auto_attach(struct comedi_device *dev,
-			    unsigned long context)
-{
-	struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
-	struct daqp_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	link->config_flags |= CONF_AUTO_SET_IO | CONF_ENABLE_IRQ;
-	ret = comedi_pcmcia_enable(dev, NULL);
-	if (ret)
-		return ret;
-	dev->iobase = link->resource[0]->start;
-
-	link->priv = dev;
-	ret = pcmcia_request_irq(link, daqp_interrupt);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ;
-	s->n_chan	= 8;
-	s->len_chanlist	= 2048;
-	s->maxdata	= 0xffff;
-	s->range_table	= &range_daqp_ai;
-	s->insn_read	= daqp_ai_insn_read;
-	s->do_cmdtest	= daqp_ai_cmdtest;
-	s->do_cmd	= daqp_ai_cmd;
-	s->cancel	= daqp_ai_cancel;
-
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &range_bipolar5;
-	s->insn_write	= daqp_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 1;
-	s->insn_bits	= daqp_di_insn_bits;
-
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 1;
-	s->maxdata	= 1;
-	s->insn_bits	= daqp_do_insn_bits;
-
-	return 0;
-}
-
-static struct comedi_driver driver_daqp = {
-	.driver_name	= "quatech_daqp_cs",
-	.module		= THIS_MODULE,
-	.auto_attach	= daqp_auto_attach,
-	.detach		= comedi_pcmcia_disable,
-};
-
-static int daqp_cs_suspend(struct pcmcia_device *link)
-{
-	struct comedi_device *dev = link->priv;
-	struct daqp_private *devpriv = dev ? dev->private : NULL;
-
-	/* Mark the device as stopped, to block IO until later */
-	if (devpriv)
-		devpriv->stop = 1;
-
-	return 0;
-}
-
-static int daqp_cs_resume(struct pcmcia_device *link)
-{
-	struct comedi_device *dev = link->priv;
-	struct daqp_private *devpriv = dev ? dev->private : NULL;
-
-	if (devpriv)
-		devpriv->stop = 0;
-
-	return 0;
-}
-
-static int daqp_cs_attach(struct pcmcia_device *link)
-{
-	return comedi_pcmcia_auto_config(link, &driver_daqp);
-}
-
-static const struct pcmcia_device_id daqp_cs_id_table[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0027),
-	PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, daqp_cs_id_table);
-
-static struct pcmcia_driver daqp_cs_driver = {
-	.name		= "quatech_daqp_cs",
-	.owner		= THIS_MODULE,
-	.id_table	= daqp_cs_id_table,
-	.probe		= daqp_cs_attach,
-	.remove		= comedi_pcmcia_auto_unconfig,
-	.suspend	= daqp_cs_suspend,
-	.resume		= daqp_cs_resume,
-};
-module_comedi_pcmcia_driver(driver_daqp, daqp_cs_driver);
-
-MODULE_DESCRIPTION("Comedi driver for Quatech DAQP PCMCIA data capture cards");
-MODULE_AUTHOR("Brent Baccala <baccala@freesoft.org>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
deleted file mode 100644
index 4c13f5eb0c84..000000000000
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ /dev/null
@@ -1,1344 +0,0 @@
-/*
- * comedi/drivers/rtd520.c
- * Comedi driver for Real Time Devices (RTD) PCI4520/DM7520
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2001 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: rtd520
- * Description: Real Time Devices PCI4520/DM7520
- * Devices: [Real Time Devices] DM7520HR-1 (DM7520), DM7520HR-8,
- *   PCI4520 (PCI4520), PCI4520-8
- * Author: Dan Christian
- * Status: Works. Only tested on DM7520-8. Not SMP safe.
- *
- * Configuration options: not applicable, uses PCI auto config
- */
-
-/*
- * Created by Dan Christian, NASA Ames Research Center.
- *
- * The PCI4520 is a PCI card. The DM7520 is a PC/104-plus card.
- * Both have:
- *   8/16 12 bit ADC with FIFO and channel gain table
- *   8 bits high speed digital out (for external MUX) (or 8 in or 8 out)
- *   8 bits high speed digital in with FIFO and interrupt on change (or 8 IO)
- *   2 12 bit DACs with FIFOs
- *   2 bits output
- *   2 bits input
- *   bus mastering DMA
- *   timers: ADC sample, pacer, burst, about, delay, DA1, DA2
- *   sample counter
- *   3 user timer/counters (8254)
- *   external interrupt
- *
- * The DM7520 has slightly fewer features (fewer gain steps).
- *
- * These boards can support external multiplexors and multi-board
- * synchronization, but this driver doesn't support that.
- *
- * Board docs: http://www.rtdusa.com/PC104/DM/analog%20IO/dm7520.htm
- * Data sheet: http://www.rtdusa.com/pdf/dm7520.pdf
- * Example source: http://www.rtdusa.com/examples/dm/dm7520.zip
- * Call them and ask for the register level manual.
- * PCI chip: http://www.plxtech.com/products/io/pci9080
- *
- * Notes:
- * This board is memory mapped. There is some IO stuff, but it isn't needed.
- *
- * I use a pretty loose naming style within the driver (rtd_blah).
- * All externally visible names should be rtd520_blah.
- * I use camelCase for structures (and inside them).
- * I may also use upper CamelCase for function names (old habit).
- *
- * This board is somewhat related to the RTD PCI4400 board.
- *
- * I borrowed heavily from the ni_mio_common, ni_atmio16d, mite, and
- * das1800, since they have the best documented code. Driver cb_pcidas64.c
- * uses the same DMA controller.
- *
- * As far as I can tell, the About interrupt doesn't work if Sample is
- * also enabled. It turns out that About really isn't needed, since
- * we always count down samples read.
- *
- * There was some timer/counter code, but it didn't follow the right API.
- */
-
-/*
- * driver status:
- *
- * Analog-In supports instruction and command mode.
- *
- * With DMA, you can sample at 1.15Mhz with 70% idle on a 400Mhz K6-2
- * (single channel, 64K read buffer). I get random system lockups when
- * using DMA with ALI-15xx based systems. I haven't been able to test
- * any other chipsets. The lockups happen soon after the start of an
- * acquistion, not in the middle of a long run.
- *
- * Without DMA, you can do 620Khz sampling with 20% idle on a 400Mhz K6-2
- * (with a 256K read buffer).
- *
- * Digital-IO and Analog-Out only support instruction mode.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-
-#include "plx9080.h"
-
-/*
- * Local Address Space 0 Offsets
- */
-#define LAS0_USER_IO		0x0008	/* User I/O */
-#define LAS0_ADC		0x0010	/* FIFO Status/Software A/D Start */
-#define FS_DAC1_NOT_EMPTY	(1 << 0)	/* DAC1 FIFO not empty */
-#define FS_DAC1_HEMPTY		(1 << 1)	/* DAC1 FIFO half empty */
-#define FS_DAC1_NOT_FULL	(1 << 2)	/* DAC1 FIFO not full */
-#define FS_DAC2_NOT_EMPTY	(1 << 4)	/* DAC2 FIFO not empty */
-#define FS_DAC2_HEMPTY		(1 << 5)	/* DAC2 FIFO half empty */
-#define FS_DAC2_NOT_FULL	(1 << 6)	/* DAC2 FIFO not full */
-#define FS_ADC_NOT_EMPTY	(1 << 8)	/* ADC FIFO not empty */
-#define FS_ADC_HEMPTY		(1 << 9)	/* ADC FIFO half empty */
-#define FS_ADC_NOT_FULL		(1 << 10)	/* ADC FIFO not full */
-#define FS_DIN_NOT_EMPTY	(1 << 12)	/* DIN FIFO not empty */
-#define FS_DIN_HEMPTY		(1 << 13)	/* DIN FIFO half empty */
-#define FS_DIN_NOT_FULL		(1 << 14)	/* DIN FIFO not full */
-#define LAS0_DAC1		0x0014	/* Software D/A1 Update (w) */
-#define LAS0_DAC2		0x0018	/* Software D/A2 Update (w) */
-#define LAS0_DAC		0x0024	/* Software Simultaneous Update (w) */
-#define LAS0_PACER		0x0028	/* Software Pacer Start/Stop */
-#define LAS0_TIMER		0x002c	/* Timer Status/HDIN Software Trig. */
-#define LAS0_IT			0x0030	/* Interrupt Status/Enable */
-#define IRQM_ADC_FIFO_WRITE	(1 << 0)	/* ADC FIFO Write */
-#define IRQM_CGT_RESET		(1 << 1)	/* Reset CGT */
-#define IRQM_CGT_PAUSE		(1 << 3)	/* Pause CGT */
-#define IRQM_ADC_ABOUT_CNT	(1 << 4)	/* About Counter out */
-#define IRQM_ADC_DELAY_CNT	(1 << 5)	/* Delay Counter out */
-#define IRQM_ADC_SAMPLE_CNT	(1 << 6)	/* ADC Sample Counter */
-#define IRQM_DAC1_UCNT		(1 << 7)	/* DAC1 Update Counter */
-#define IRQM_DAC2_UCNT		(1 << 8)	/* DAC2 Update Counter */
-#define IRQM_UTC1		(1 << 9)	/* User TC1 out */
-#define IRQM_UTC1_INV		(1 << 10)	/* User TC1 out, inverted */
-#define IRQM_UTC2		(1 << 11)	/* User TC2 out */
-#define IRQM_DIGITAL_IT		(1 << 12)	/* Digital Interrupt */
-#define IRQM_EXTERNAL_IT	(1 << 13)	/* External Interrupt */
-#define IRQM_ETRIG_RISING	(1 << 14)	/* Ext Trigger rising-edge */
-#define IRQM_ETRIG_FALLING	(1 << 15)	/* Ext Trigger falling-edge */
-#define LAS0_CLEAR		0x0034	/* Clear/Set Interrupt Clear Mask */
-#define LAS0_OVERRUN		0x0038	/* Pending interrupts/Clear Overrun */
-#define LAS0_PCLK		0x0040	/* Pacer Clock (24bit) */
-#define LAS0_BCLK		0x0044	/* Burst Clock (10bit) */
-#define LAS0_ADC_SCNT		0x0048	/* A/D Sample counter (10bit) */
-#define LAS0_DAC1_UCNT		0x004c	/* D/A1 Update counter (10 bit) */
-#define LAS0_DAC2_UCNT		0x0050	/* D/A2 Update counter (10 bit) */
-#define LAS0_DCNT		0x0054	/* Delay counter (16 bit) */
-#define LAS0_ACNT		0x0058	/* About counter (16 bit) */
-#define LAS0_DAC_CLK		0x005c	/* DAC clock (16bit) */
-#define LAS0_UTC0		0x0060	/* 8254 TC Counter 0 */
-#define LAS0_UTC1		0x0064	/* 8254 TC Counter 1 */
-#define LAS0_UTC2		0x0068	/* 8254 TC Counter 2 */
-#define LAS0_UTC_CTRL		0x006c	/* 8254 TC Control */
-#define LAS0_DIO0		0x0070	/* Digital I/O Port 0 */
-#define LAS0_DIO1		0x0074	/* Digital I/O Port 1 */
-#define LAS0_DIO0_CTRL		0x0078	/* Digital I/O Control */
-#define LAS0_DIO_STATUS		0x007c	/* Digital I/O Status */
-#define LAS0_BOARD_RESET	0x0100	/* Board reset */
-#define LAS0_DMA0_SRC		0x0104	/* DMA 0 Sources select */
-#define LAS0_DMA1_SRC		0x0108	/* DMA 1 Sources select */
-#define LAS0_ADC_CONVERSION	0x010c	/* A/D Conversion Signal select */
-#define LAS0_BURST_START	0x0110	/* Burst Clock Start Trigger select */
-#define LAS0_PACER_START	0x0114	/* Pacer Clock Start Trigger select */
-#define LAS0_PACER_STOP		0x0118	/* Pacer Clock Stop Trigger select */
-#define LAS0_ACNT_STOP_ENABLE	0x011c	/* About Counter Stop Enable */
-#define LAS0_PACER_REPEAT	0x0120	/* Pacer Start Trigger Mode select */
-#define LAS0_DIN_START		0x0124	/* HiSpd DI Sampling Signal select */
-#define LAS0_DIN_FIFO_CLEAR	0x0128	/* Digital Input FIFO Clear */
-#define LAS0_ADC_FIFO_CLEAR	0x012c	/* A/D FIFO Clear */
-#define LAS0_CGT_WRITE		0x0130	/* Channel Gain Table Write */
-#define LAS0_CGL_WRITE		0x0134	/* Channel Gain Latch Write */
-#define LAS0_CG_DATA		0x0138	/* Digital Table Write */
-#define LAS0_CGT_ENABLE		0x013c	/* Channel Gain Table Enable */
-#define LAS0_CG_ENABLE		0x0140	/* Digital Table Enable */
-#define LAS0_CGT_PAUSE		0x0144	/* Table Pause Enable */
-#define LAS0_CGT_RESET		0x0148	/* Reset Channel Gain Table */
-#define LAS0_CGT_CLEAR		0x014c	/* Clear Channel Gain Table */
-#define LAS0_DAC1_CTRL		0x0150	/* D/A1 output type/range */
-#define LAS0_DAC1_SRC		0x0154	/* D/A1 update source */
-#define LAS0_DAC1_CYCLE		0x0158	/* D/A1 cycle mode */
-#define LAS0_DAC1_RESET		0x015c	/* D/A1 FIFO reset */
-#define LAS0_DAC1_FIFO_CLEAR	0x0160	/* D/A1 FIFO clear */
-#define LAS0_DAC2_CTRL		0x0164	/* D/A2 output type/range */
-#define LAS0_DAC2_SRC		0x0168	/* D/A2 update source */
-#define LAS0_DAC2_CYCLE		0x016c	/* D/A2 cycle mode */
-#define LAS0_DAC2_RESET		0x0170	/* D/A2 FIFO reset */
-#define LAS0_DAC2_FIFO_CLEAR	0x0174	/* D/A2 FIFO clear */
-#define LAS0_ADC_SCNT_SRC	0x0178	/* A/D Sample Counter Source select */
-#define LAS0_PACER_SELECT	0x0180	/* Pacer Clock select */
-#define LAS0_SBUS0_SRC		0x0184	/* SyncBus 0 Source select */
-#define LAS0_SBUS0_ENABLE	0x0188	/* SyncBus 0 enable */
-#define LAS0_SBUS1_SRC		0x018c	/* SyncBus 1 Source select */
-#define LAS0_SBUS1_ENABLE	0x0190	/* SyncBus 1 enable */
-#define LAS0_SBUS2_SRC		0x0198	/* SyncBus 2 Source select */
-#define LAS0_SBUS2_ENABLE	0x019c	/* SyncBus 2 enable */
-#define LAS0_ETRG_POLARITY	0x01a4	/* Ext. Trigger polarity select */
-#define LAS0_EINT_POLARITY	0x01a8	/* Ext. Interrupt polarity select */
-#define LAS0_UTC0_CLOCK		0x01ac	/* UTC0 Clock select */
-#define LAS0_UTC0_GATE		0x01b0	/* UTC0 Gate select */
-#define LAS0_UTC1_CLOCK		0x01b4	/* UTC1 Clock select */
-#define LAS0_UTC1_GATE		0x01b8	/* UTC1 Gate select */
-#define LAS0_UTC2_CLOCK		0x01bc	/* UTC2 Clock select */
-#define LAS0_UTC2_GATE		0x01c0	/* UTC2 Gate select */
-#define LAS0_UOUT0_SELECT	0x01c4	/* User Output 0 source select */
-#define LAS0_UOUT1_SELECT	0x01c8	/* User Output 1 source select */
-#define LAS0_DMA0_RESET		0x01cc	/* DMA0 Request state machine reset */
-#define LAS0_DMA1_RESET		0x01d0	/* DMA1 Request state machine reset */
-
-/*
- * Local Address Space 1 Offsets
- */
-#define LAS1_ADC_FIFO		0x0000	/* A/D FIFO (16bit) */
-#define LAS1_HDIO_FIFO		0x0004	/* HiSpd DI FIFO (16bit) */
-#define LAS1_DAC1_FIFO		0x0008	/* D/A1 FIFO (16bit) */
-#define LAS1_DAC2_FIFO		0x000c	/* D/A2 FIFO (16bit) */
-
-/*======================================================================
-  Driver specific stuff (tunable)
-======================================================================*/
-
-/* We really only need 2 buffers.  More than that means being much
-   smarter about knowing which ones are full. */
-#define DMA_CHAIN_COUNT 2	/* max DMA segments/buffers in a ring (min 2) */
-
-/* Target period for periodic transfers.  This sets the user read latency. */
-/* Note: There are certain rates where we give this up and transfer 1/2 FIFO */
-/* If this is too low, efficiency is poor */
-#define TRANS_TARGET_PERIOD 10000000	/* 10 ms (in nanoseconds) */
-
-/* Set a practical limit on how long a list to support (affects memory use) */
-/* The board support a channel list up to the FIFO length (1K or 8K) */
-#define RTD_MAX_CHANLIST	128	/* max channel list that we allow */
-
-/*======================================================================
-  Board specific stuff
-======================================================================*/
-
-#define RTD_CLOCK_RATE	8000000	/* 8Mhz onboard clock */
-#define RTD_CLOCK_BASE	125	/* clock period in ns */
-
-/* Note: these speed are slower than the spec, but fit the counter resolution*/
-#define RTD_MAX_SPEED	1625	/* when sampling, in nanoseconds */
-/* max speed if we don't have to wait for settling */
-#define RTD_MAX_SPEED_1	875	/* if single channel, in nanoseconds */
-
-#define RTD_MIN_SPEED	2097151875	/* (24bit counter) in nanoseconds */
-/* min speed when only 1 channel (no burst counter) */
-#define RTD_MIN_SPEED_1	5000000	/* 200Hz, in nanoseconds */
-
-/* Setup continuous ring of 1/2 FIFO transfers.  See RTD manual p91 */
-#define DMA_MODE_BITS (\
-		       PLX_LOCAL_BUS_16_WIDE_BITS \
-		       | PLX_DMA_EN_READYIN_BIT \
-		       | PLX_DMA_LOCAL_BURST_EN_BIT \
-		       | PLX_EN_CHAIN_BIT \
-		       | PLX_DMA_INTR_PCI_BIT \
-		       | PLX_LOCAL_ADDR_CONST_BIT \
-		       | PLX_DEMAND_MODE_BIT)
-
-#define DMA_TRANSFER_BITS (\
-/* descriptors in PCI memory*/  PLX_DESC_IN_PCI_BIT \
-/* interrupt at end of block */ | PLX_INTR_TERM_COUNT \
-/* from board to PCI */		| PLX_XFER_LOCAL_TO_PCI)
-
-/*======================================================================
-  Comedi specific stuff
-======================================================================*/
-
-/*
- * The board has 3 input modes and the gains of 1,2,4,...32 (, 64, 128)
- */
-static const struct comedi_lrange rtd_ai_7520_range = {
-	18, {
-		/* +-5V input range gain steps */
-		BIP_RANGE(5.0),
-		BIP_RANGE(5.0 / 2),
-		BIP_RANGE(5.0 / 4),
-		BIP_RANGE(5.0 / 8),
-		BIP_RANGE(5.0 / 16),
-		BIP_RANGE(5.0 / 32),
-		/* +-10V input range gain steps */
-		BIP_RANGE(10.0),
-		BIP_RANGE(10.0 / 2),
-		BIP_RANGE(10.0 / 4),
-		BIP_RANGE(10.0 / 8),
-		BIP_RANGE(10.0 / 16),
-		BIP_RANGE(10.0 / 32),
-		/* +10V input range gain steps */
-		UNI_RANGE(10.0),
-		UNI_RANGE(10.0 / 2),
-		UNI_RANGE(10.0 / 4),
-		UNI_RANGE(10.0 / 8),
-		UNI_RANGE(10.0 / 16),
-		UNI_RANGE(10.0 / 32),
-	}
-};
-
-/* PCI4520 has two more gains (6 more entries) */
-static const struct comedi_lrange rtd_ai_4520_range = {
-	24, {
-		/* +-5V input range gain steps */
-		BIP_RANGE(5.0),
-		BIP_RANGE(5.0 / 2),
-		BIP_RANGE(5.0 / 4),
-		BIP_RANGE(5.0 / 8),
-		BIP_RANGE(5.0 / 16),
-		BIP_RANGE(5.0 / 32),
-		BIP_RANGE(5.0 / 64),
-		BIP_RANGE(5.0 / 128),
-		/* +-10V input range gain steps */
-		BIP_RANGE(10.0),
-		BIP_RANGE(10.0 / 2),
-		BIP_RANGE(10.0 / 4),
-		BIP_RANGE(10.0 / 8),
-		BIP_RANGE(10.0 / 16),
-		BIP_RANGE(10.0 / 32),
-		BIP_RANGE(10.0 / 64),
-		BIP_RANGE(10.0 / 128),
-		/* +10V input range gain steps */
-		UNI_RANGE(10.0),
-		UNI_RANGE(10.0 / 2),
-		UNI_RANGE(10.0 / 4),
-		UNI_RANGE(10.0 / 8),
-		UNI_RANGE(10.0 / 16),
-		UNI_RANGE(10.0 / 32),
-		UNI_RANGE(10.0 / 64),
-		UNI_RANGE(10.0 / 128),
-	}
-};
-
-/* Table order matches range values */
-static const struct comedi_lrange rtd_ao_range = {
-	4, {
-		UNI_RANGE(5),
-		UNI_RANGE(10),
-		BIP_RANGE(5),
-		BIP_RANGE(10),
-	}
-};
-
-enum rtd_boardid {
-	BOARD_DM7520,
-	BOARD_PCI4520,
-};
-
-struct rtd_boardinfo {
-	const char *name;
-	int range_bip10;	/* start of +-10V range */
-	int range_uni10;	/* start of +10V range */
-	const struct comedi_lrange *ai_range;
-};
-
-static const struct rtd_boardinfo rtd520Boards[] = {
-	[BOARD_DM7520] = {
-		.name		= "DM7520",
-		.range_bip10	= 6,
-		.range_uni10	= 12,
-		.ai_range	= &rtd_ai_7520_range,
-	},
-	[BOARD_PCI4520] = {
-		.name		= "PCI4520",
-		.range_bip10	= 8,
-		.range_uni10	= 16,
-		.ai_range	= &rtd_ai_4520_range,
-	},
-};
-
-struct rtd_private {
-	/* memory mapped board structures */
-	void __iomem *las1;
-	void __iomem *lcfg;
-
-	long ai_count;		/* total transfer size (samples) */
-	int xfer_count;		/* # to transfer data. 0->1/2FIFO */
-	int flags;		/* flag event modes */
-	unsigned fifosz;
-};
-
-/* bit defines for "flags" */
-#define SEND_EOS	0x01	/* send End Of Scan events */
-#define DMA0_ACTIVE	0x02	/* DMA0 is active */
-#define DMA1_ACTIVE	0x04	/* DMA1 is active */
-
-/*
-  Given a desired period and the clock period (both in ns),
-  return the proper counter value (divider-1).
-  Sets the original period to be the true value.
-  Note: you have to check if the value is larger than the counter range!
-*/
-static int rtd_ns_to_timer_base(unsigned int *nanosec,
-				unsigned int flags, int base)
-{
-	int divider;
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		divider = (*nanosec + base / 2) / base;
-		break;
-	case CMDF_ROUND_DOWN:
-		divider = (*nanosec) / base;
-		break;
-	case CMDF_ROUND_UP:
-		divider = (*nanosec + base - 1) / base;
-		break;
-	}
-	if (divider < 2)
-		divider = 2;	/* min is divide by 2 */
-
-	/* Note: we don't check for max, because different timers
-	   have different ranges */
-
-	*nanosec = base * divider;
-	return divider - 1;	/* countdown is divisor+1 */
-}
-
-/*
-  Given a desired period (in ns),
-  return the proper counter value (divider-1) for the internal clock.
-  Sets the original period to be the true value.
-*/
-static int rtd_ns_to_timer(unsigned int *ns, unsigned int flags)
-{
-	return rtd_ns_to_timer_base(ns, flags, RTD_CLOCK_BASE);
-}
-
-/*
-  Convert a single comedi channel-gain entry to a RTD520 table entry
-*/
-static unsigned short rtd_convert_chan_gain(struct comedi_device *dev,
-					    unsigned int chanspec, int index)
-{
-	const struct rtd_boardinfo *board = dev->board_ptr;
-	unsigned int chan = CR_CHAN(chanspec);
-	unsigned int range = CR_RANGE(chanspec);
-	unsigned int aref = CR_AREF(chanspec);
-	unsigned short r = 0;
-
-	r |= chan & 0xf;
-
-	/* Note: we also setup the channel list bipolar flag array */
-	if (range < board->range_bip10) {
-		/* +-5 range */
-		r |= 0x000;
-		r |= (range & 0x7) << 4;
-	} else if (range < board->range_uni10) {
-		/* +-10 range */
-		r |= 0x100;
-		r |= ((range - board->range_bip10) & 0x7) << 4;
-	} else {
-		/* +10 range */
-		r |= 0x200;
-		r |= ((range - board->range_uni10) & 0x7) << 4;
-	}
-
-	switch (aref) {
-	case AREF_GROUND:	/* on-board ground */
-		break;
-
-	case AREF_COMMON:
-		r |= 0x80;	/* ref external analog common */
-		break;
-
-	case AREF_DIFF:
-		r |= 0x400;	/* differential inputs */
-		break;
-
-	case AREF_OTHER:	/* ??? */
-		break;
-	}
-	return r;
-}
-
-/*
-  Setup the channel-gain table from a comedi list
-*/
-static void rtd_load_channelgain_list(struct comedi_device *dev,
-				      unsigned int n_chan, unsigned int *list)
-{
-	if (n_chan > 1) {	/* setup channel gain table */
-		int ii;
-
-		writel(0, dev->mmio + LAS0_CGT_CLEAR);
-		writel(1, dev->mmio + LAS0_CGT_ENABLE);
-		for (ii = 0; ii < n_chan; ii++) {
-			writel(rtd_convert_chan_gain(dev, list[ii], ii),
-			       dev->mmio + LAS0_CGT_WRITE);
-		}
-	} else {		/* just use the channel gain latch */
-		writel(0, dev->mmio + LAS0_CGT_ENABLE);
-		writel(rtd_convert_chan_gain(dev, list[0], 0),
-		       dev->mmio + LAS0_CGL_WRITE);
-	}
-}
-
-/* determine fifo size by doing adc conversions until the fifo half
-empty status flag clears */
-static int rtd520_probe_fifo_depth(struct comedi_device *dev)
-{
-	unsigned int chanspec = CR_PACK(0, 0, AREF_GROUND);
-	unsigned i;
-	static const unsigned limit = 0x2000;
-	unsigned fifo_size = 0;
-
-	writel(0, dev->mmio + LAS0_ADC_FIFO_CLEAR);
-	rtd_load_channelgain_list(dev, 1, &chanspec);
-	/* ADC conversion trigger source: SOFTWARE */
-	writel(0, dev->mmio + LAS0_ADC_CONVERSION);
-	/* convert  samples */
-	for (i = 0; i < limit; ++i) {
-		unsigned fifo_status;
-		/* trigger conversion */
-		writew(0, dev->mmio + LAS0_ADC);
-		udelay(1);
-		fifo_status = readl(dev->mmio + LAS0_ADC);
-		if ((fifo_status & FS_ADC_HEMPTY) == 0) {
-			fifo_size = 2 * i;
-			break;
-		}
-	}
-	if (i == limit) {
-		dev_info(dev->class_dev, "failed to probe fifo size.\n");
-		return -EIO;
-	}
-	writel(0, dev->mmio + LAS0_ADC_FIFO_CLEAR);
-	if (fifo_size != 0x400 && fifo_size != 0x2000) {
-		dev_info(dev->class_dev,
-			 "unexpected fifo size of %i, expected 1024 or 8192.\n",
-			 fifo_size);
-		return -EIO;
-	}
-	return fifo_size;
-}
-
-static int rtd_ai_eoc(struct comedi_device *dev,
-		      struct comedi_subdevice *s,
-		      struct comedi_insn *insn,
-		      unsigned long context)
-{
-	unsigned int status;
-
-	status = readl(dev->mmio + LAS0_ADC);
-	if (status & FS_ADC_NOT_EMPTY)
-		return 0;
-	return -EBUSY;
-}
-
-static int rtd_ai_rinsn(struct comedi_device *dev,
-			struct comedi_subdevice *s, struct comedi_insn *insn,
-			unsigned int *data)
-{
-	struct rtd_private *devpriv = dev->private;
-	unsigned int range = CR_RANGE(insn->chanspec);
-	int ret;
-	int n;
-
-	/* clear any old fifo data */
-	writel(0, dev->mmio + LAS0_ADC_FIFO_CLEAR);
-
-	/* write channel to multiplexer and clear channel gain table */
-	rtd_load_channelgain_list(dev, 1, &insn->chanspec);
-
-	/* ADC conversion trigger source: SOFTWARE */
-	writel(0, dev->mmio + LAS0_ADC_CONVERSION);
-
-	/* convert n samples */
-	for (n = 0; n < insn->n; n++) {
-		unsigned short d;
-		/* trigger conversion */
-		writew(0, dev->mmio + LAS0_ADC);
-
-		ret = comedi_timeout(dev, s, insn, rtd_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* read data */
-		d = readw(devpriv->las1 + LAS1_ADC_FIFO);
-		d >>= 3;	/* low 3 bits are marker lines */
-
-		/* convert bipolar data to comedi unsigned data */
-		if (comedi_range_is_bipolar(s, range))
-			d = comedi_offset_munge(s, d);
-
-		data[n] = d & s->maxdata;
-	}
-
-	/* return the number of samples read/written */
-	return n;
-}
-
-/*
-  Get what we know is there.... Fast!
-  This uses 1/2 the bus cycles of read_dregs (below).
-
-  The manual claims that we can do a lword read, but it doesn't work here.
-*/
-static int ai_read_n(struct comedi_device *dev, struct comedi_subdevice *s,
-		     int count)
-{
-	struct rtd_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	int ii;
-
-	for (ii = 0; ii < count; ii++) {
-		unsigned int range = CR_RANGE(cmd->chanlist[async->cur_chan]);
-		unsigned short d;
-
-		if (0 == devpriv->ai_count) {	/* done */
-			d = readw(devpriv->las1 + LAS1_ADC_FIFO);
-			continue;
-		}
-
-		d = readw(devpriv->las1 + LAS1_ADC_FIFO);
-		d >>= 3;	/* low 3 bits are marker lines */
-
-		/* convert bipolar data to comedi unsigned data */
-		if (comedi_range_is_bipolar(s, range))
-			d = comedi_offset_munge(s, d);
-		d &= s->maxdata;
-
-		if (!comedi_buf_write_samples(s, &d, 1))
-			return -1;
-
-		if (devpriv->ai_count > 0)	/* < 0, means read forever */
-			devpriv->ai_count--;
-	}
-	return 0;
-}
-
-/*
-  Handle all rtd520 interrupts.
-  Runs atomically and is never re-entered.
-  This is a "slow handler";  other interrupts may be active.
-  The data conversion may someday happen in a "bottom half".
-*/
-static irqreturn_t rtd_interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct rtd_private *devpriv = dev->private;
-	u32 overrun;
-	u16 status;
-	u16 fifo_status;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-
-	fifo_status = readl(dev->mmio + LAS0_ADC);
-	/* check for FIFO full, this automatically halts the ADC! */
-	if (!(fifo_status & FS_ADC_NOT_FULL))	/* 0 -> full */
-		goto xfer_abort;
-
-	status = readw(dev->mmio + LAS0_IT);
-	/* if interrupt was not caused by our board, or handled above */
-	if (0 == status)
-		return IRQ_HANDLED;
-
-	if (status & IRQM_ADC_ABOUT_CNT) {	/* sample count -> read FIFO */
-		/*
-		 * since the priority interrupt controller may have queued
-		 * a sample counter interrupt, even though we have already
-		 * finished, we must handle the possibility that there is
-		 * no data here
-		 */
-		if (!(fifo_status & FS_ADC_HEMPTY)) {
-			/* FIFO half full */
-			if (ai_read_n(dev, s, devpriv->fifosz / 2) < 0)
-				goto xfer_abort;
-
-			if (0 == devpriv->ai_count)
-				goto xfer_done;
-		} else if (devpriv->xfer_count > 0) {
-			if (fifo_status & FS_ADC_NOT_EMPTY) {
-				/* FIFO not empty */
-				if (ai_read_n(dev, s, devpriv->xfer_count) < 0)
-					goto xfer_abort;
-
-				if (0 == devpriv->ai_count)
-					goto xfer_done;
-			}
-		}
-	}
-
-	overrun = readl(dev->mmio + LAS0_OVERRUN) & 0xffff;
-	if (overrun)
-		goto xfer_abort;
-
-	/* clear the interrupt */
-	writew(status, dev->mmio + LAS0_CLEAR);
-	readw(dev->mmio + LAS0_CLEAR);
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-
-xfer_abort:
-	s->async->events |= COMEDI_CB_ERROR;
-
-xfer_done:
-	s->async->events |= COMEDI_CB_EOA;
-
-	/* clear the interrupt */
-	status = readw(dev->mmio + LAS0_IT);
-	writew(status, dev->mmio + LAS0_CLEAR);
-	readw(dev->mmio + LAS0_CLEAR);
-
-	fifo_status = readl(dev->mmio + LAS0_ADC);
-	overrun = readl(dev->mmio + LAS0_OVERRUN) & 0xffff;
-
-	comedi_handle_events(dev, s);
-
-	return IRQ_HANDLED;
-}
-
-/*
-  cmdtest tests a particular command to see if it is valid.
-  Using the cmdtest ioctl, a user can create a valid cmd
-  and then have it executed by the cmd ioctl (asynchronously).
-
-  cmdtest returns 1,2,3,4 or 0, depending on which tests
-  the command passes.
-*/
-
-static int rtd_ai_cmdtest(struct comedi_device *dev,
-			  struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/* Note: these are time periods, not actual rates */
-		if (1 == cmd->chanlist_len) {	/* no scanning */
-			if (comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 RTD_MAX_SPEED_1)) {
-				rtd_ns_to_timer(&cmd->scan_begin_arg,
-						CMDF_ROUND_UP);
-				err |= -EINVAL;
-			}
-			if (comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-							 RTD_MIN_SPEED_1)) {
-				rtd_ns_to_timer(&cmd->scan_begin_arg,
-						CMDF_ROUND_DOWN);
-				err |= -EINVAL;
-			}
-		} else {
-			if (comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-							 RTD_MAX_SPEED)) {
-				rtd_ns_to_timer(&cmd->scan_begin_arg,
-						CMDF_ROUND_UP);
-				err |= -EINVAL;
-			}
-			if (comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-							 RTD_MIN_SPEED)) {
-				rtd_ns_to_timer(&cmd->scan_begin_arg,
-						CMDF_ROUND_DOWN);
-				err |= -EINVAL;
-			}
-		}
-	} else {
-		/* external trigger */
-		/* should be level/edge, hi/lo specification here */
-		/* should specify multiple external triggers */
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 9);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		if (1 == cmd->chanlist_len) {	/* no scanning */
-			if (comedi_check_trigger_arg_min(&cmd->convert_arg,
-							 RTD_MAX_SPEED_1)) {
-				rtd_ns_to_timer(&cmd->convert_arg,
-						CMDF_ROUND_UP);
-				err |= -EINVAL;
-			}
-			if (comedi_check_trigger_arg_max(&cmd->convert_arg,
-							 RTD_MIN_SPEED_1)) {
-				rtd_ns_to_timer(&cmd->convert_arg,
-						CMDF_ROUND_DOWN);
-				err |= -EINVAL;
-			}
-		} else {
-			if (comedi_check_trigger_arg_min(&cmd->convert_arg,
-							 RTD_MAX_SPEED)) {
-				rtd_ns_to_timer(&cmd->convert_arg,
-						CMDF_ROUND_UP);
-				err |= -EINVAL;
-			}
-			if (comedi_check_trigger_arg_max(&cmd->convert_arg,
-							 RTD_MIN_SPEED)) {
-				rtd_ns_to_timer(&cmd->convert_arg,
-						CMDF_ROUND_DOWN);
-				err |= -EINVAL;
-			}
-		}
-	} else {
-		/* external trigger */
-		/* see above */
-		err |= comedi_check_trigger_arg_max(&cmd->convert_arg, 9);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		rtd_ns_to_timer(&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		rtd_ns_to_timer(&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			arg = cmd->convert_arg * cmd->scan_end_arg;
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    arg);
-		}
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-/*
-  Execute a analog in command with many possible triggering options.
-  The data get stored in the async structure of the subdevice.
-  This is usually done by an interrupt handler.
-  Userland gets to the data using read calls.
-*/
-static int rtd_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct rtd_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int timer;
-
-	/* stop anything currently running */
-	/* pacer stop source: SOFTWARE */
-	writel(0, dev->mmio + LAS0_PACER_STOP);
-	writel(0, dev->mmio + LAS0_PACER);	/* stop pacer */
-	writel(0, dev->mmio + LAS0_ADC_CONVERSION);
-	writew(0, dev->mmio + LAS0_IT);
-	writel(0, dev->mmio + LAS0_ADC_FIFO_CLEAR);
-	writel(0, dev->mmio + LAS0_OVERRUN);
-
-	/* start configuration */
-	/* load channel list and reset CGT */
-	rtd_load_channelgain_list(dev, cmd->chanlist_len, cmd->chanlist);
-
-	/* setup the common case and override if needed */
-	if (cmd->chanlist_len > 1) {
-		/* pacer start source: SOFTWARE */
-		writel(0, dev->mmio + LAS0_PACER_START);
-		/* burst trigger source: PACER */
-		writel(1, dev->mmio + LAS0_BURST_START);
-		/* ADC conversion trigger source: BURST */
-		writel(2, dev->mmio + LAS0_ADC_CONVERSION);
-	} else {		/* single channel */
-		/* pacer start source: SOFTWARE */
-		writel(0, dev->mmio + LAS0_PACER_START);
-		/* ADC conversion trigger source: PACER */
-		writel(1, dev->mmio + LAS0_ADC_CONVERSION);
-	}
-	writel((devpriv->fifosz / 2 - 1) & 0xffff, dev->mmio + LAS0_ACNT);
-
-	if (TRIG_TIMER == cmd->scan_begin_src) {
-		/* scan_begin_arg is in nanoseconds */
-		/* find out how many samples to wait before transferring */
-		if (cmd->flags & CMDF_WAKE_EOS) {
-			/*
-			 * this may generate un-sustainable interrupt rates
-			 * the application is responsible for doing the
-			 * right thing
-			 */
-			devpriv->xfer_count = cmd->chanlist_len;
-			devpriv->flags |= SEND_EOS;
-		} else {
-			/* arrange to transfer data periodically */
-			devpriv->xfer_count =
-			    (TRANS_TARGET_PERIOD * cmd->chanlist_len) /
-			    cmd->scan_begin_arg;
-			if (devpriv->xfer_count < cmd->chanlist_len) {
-				/* transfer after each scan (and avoid 0) */
-				devpriv->xfer_count = cmd->chanlist_len;
-			} else {	/* make a multiple of scan length */
-				devpriv->xfer_count =
-				    (devpriv->xfer_count +
-				     cmd->chanlist_len - 1)
-				    / cmd->chanlist_len;
-				devpriv->xfer_count *= cmd->chanlist_len;
-			}
-			devpriv->flags |= SEND_EOS;
-		}
-		if (devpriv->xfer_count >= (devpriv->fifosz / 2)) {
-			/* out of counter range, use 1/2 fifo instead */
-			devpriv->xfer_count = 0;
-			devpriv->flags &= ~SEND_EOS;
-		} else {
-			/* interrupt for each transfer */
-			writel((devpriv->xfer_count - 1) & 0xffff,
-			       dev->mmio + LAS0_ACNT);
-		}
-	} else {		/* unknown timing, just use 1/2 FIFO */
-		devpriv->xfer_count = 0;
-		devpriv->flags &= ~SEND_EOS;
-	}
-	/* pacer clock source: INTERNAL 8MHz */
-	writel(1, dev->mmio + LAS0_PACER_SELECT);
-	/* just interrupt, don't stop */
-	writel(1, dev->mmio + LAS0_ACNT_STOP_ENABLE);
-
-	/* BUG??? these look like enumerated values, but they are bit fields */
-
-	/* First, setup when to stop */
-	switch (cmd->stop_src) {
-	case TRIG_COUNT:	/* stop after N scans */
-		devpriv->ai_count = cmd->stop_arg * cmd->chanlist_len;
-		if ((devpriv->xfer_count > 0)
-		    && (devpriv->xfer_count > devpriv->ai_count)) {
-			devpriv->xfer_count = devpriv->ai_count;
-		}
-		break;
-
-	case TRIG_NONE:	/* stop when cancel is called */
-		devpriv->ai_count = -1;	/* read forever */
-		break;
-	}
-
-	/* Scan timing */
-	switch (cmd->scan_begin_src) {
-	case TRIG_TIMER:	/* periodic scanning */
-		timer = rtd_ns_to_timer(&cmd->scan_begin_arg,
-					CMDF_ROUND_NEAREST);
-		/* set PACER clock */
-		writel(timer & 0xffffff, dev->mmio + LAS0_PCLK);
-
-		break;
-
-	case TRIG_EXT:
-		/* pacer start source: EXTERNAL */
-		writel(1, dev->mmio + LAS0_PACER_START);
-		break;
-	}
-
-	/* Sample timing within a scan */
-	switch (cmd->convert_src) {
-	case TRIG_TIMER:	/* periodic */
-		if (cmd->chanlist_len > 1) {
-			/* only needed for multi-channel */
-			timer = rtd_ns_to_timer(&cmd->convert_arg,
-						CMDF_ROUND_NEAREST);
-			/* setup BURST clock */
-			writel(timer & 0x3ff, dev->mmio + LAS0_BCLK);
-		}
-
-		break;
-
-	case TRIG_EXT:		/* external */
-		/* burst trigger source: EXTERNAL */
-		writel(2, dev->mmio + LAS0_BURST_START);
-		break;
-	}
-	/* end configuration */
-
-	/* This doesn't seem to work.  There is no way to clear an interrupt
-	   that the priority controller has queued! */
-	writew(~0, dev->mmio + LAS0_CLEAR);
-	readw(dev->mmio + LAS0_CLEAR);
-
-	/* TODO: allow multiple interrupt sources */
-	/* transfer every N samples */
-	writew(IRQM_ADC_ABOUT_CNT, dev->mmio + LAS0_IT);
-
-	/* BUG: start_src is ASSUMED to be TRIG_NOW */
-	/* BUG? it seems like things are running before the "start" */
-	readl(dev->mmio + LAS0_PACER);	/* start pacer */
-	return 0;
-}
-
-/*
-  Stop a running data acquisition.
-*/
-static int rtd_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct rtd_private *devpriv = dev->private;
-
-	/* pacer stop source: SOFTWARE */
-	writel(0, dev->mmio + LAS0_PACER_STOP);
-	writel(0, dev->mmio + LAS0_PACER);	/* stop pacer */
-	writel(0, dev->mmio + LAS0_ADC_CONVERSION);
-	writew(0, dev->mmio + LAS0_IT);
-	devpriv->ai_count = 0;	/* stop and don't transfer any more */
-	writel(0, dev->mmio + LAS0_ADC_FIFO_CLEAR);
-	return 0;
-}
-
-static int rtd_ao_eoc(struct comedi_device *dev,
-		      struct comedi_subdevice *s,
-		      struct comedi_insn *insn,
-		      unsigned long context)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int bit = (chan == 0) ? FS_DAC1_NOT_EMPTY : FS_DAC2_NOT_EMPTY;
-	unsigned int status;
-
-	status = readl(dev->mmio + LAS0_ADC);
-	if (status & bit)
-		return 0;
-	return -EBUSY;
-}
-
-static int rtd_ao_winsn(struct comedi_device *dev,
-			struct comedi_subdevice *s, struct comedi_insn *insn,
-			unsigned int *data)
-{
-	struct rtd_private *devpriv = dev->private;
-	int i;
-	int chan = CR_CHAN(insn->chanspec);
-	int range = CR_RANGE(insn->chanspec);
-	int ret;
-
-	/* Configure the output range (table index matches the range values) */
-	writew(range & 7,
-	       dev->mmio + ((chan == 0) ? LAS0_DAC1_CTRL : LAS0_DAC2_CTRL));
-
-	/* Writing a list of values to an AO channel is probably not
-	 * very useful, but that's how the interface is defined. */
-	for (i = 0; i < insn->n; ++i) {
-		int val = data[i] << 3;
-
-		/* VERIFY: comedi range and offset conversions */
-
-		if ((range > 1)	/* bipolar */
-		    && (data[i] < 2048)) {
-			/* offset and sign extend */
-			val = (((int)data[i]) - 2048) << 3;
-		} else {	/* unipolor */
-			val = data[i] << 3;
-		}
-
-		/* a typical programming sequence */
-		writew(val, devpriv->las1 +
-			((chan == 0) ? LAS1_DAC1_FIFO : LAS1_DAC2_FIFO));
-		writew(0, dev->mmio + ((chan == 0) ? LAS0_DAC1 : LAS0_DAC2));
-
-		s->readback[chan] = data[i];
-
-		ret = comedi_timeout(dev, s, insn, rtd_ao_eoc, 0);
-		if (ret)
-			return ret;
-	}
-
-	/* return the number of samples read/written */
-	return i;
-}
-
-static int rtd_dio_insn_bits(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		writew(s->state & 0xff, dev->mmio + LAS0_DIO0);
-
-	data[1] = readw(dev->mmio + LAS0_DIO0) & 0xff;
-
-	return insn->n;
-}
-
-static int rtd_dio_insn_config(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	/* TODO support digital match interrupts and strobes */
-
-	/* set direction */
-	writew(0x01, dev->mmio + LAS0_DIO_STATUS);
-	writew(s->io_bits & 0xff, dev->mmio + LAS0_DIO0_CTRL);
-
-	/* clear interrupts */
-	writew(0x00, dev->mmio + LAS0_DIO_STATUS);
-
-	/* port1 can only be all input or all output */
-
-	/* there are also 2 user input lines and 2 user output lines */
-
-	return insn->n;
-}
-
-static void rtd_reset(struct comedi_device *dev)
-{
-	struct rtd_private *devpriv = dev->private;
-
-	writel(0, dev->mmio + LAS0_BOARD_RESET);
-	udelay(100);		/* needed? */
-	writel(0, devpriv->lcfg + PLX_INTRCS_REG);
-	writew(0, dev->mmio + LAS0_IT);
-	writew(~0, dev->mmio + LAS0_CLEAR);
-	readw(dev->mmio + LAS0_CLEAR);
-}
-
-/*
- * initialize board, per RTD spec
- * also, initialize shadow registers
- */
-static void rtd_init_board(struct comedi_device *dev)
-{
-	rtd_reset(dev);
-
-	writel(0, dev->mmio + LAS0_OVERRUN);
-	writel(0, dev->mmio + LAS0_CGT_CLEAR);
-	writel(0, dev->mmio + LAS0_ADC_FIFO_CLEAR);
-	writel(0, dev->mmio + LAS0_DAC1_RESET);
-	writel(0, dev->mmio + LAS0_DAC2_RESET);
-	/* clear digital IO fifo */
-	writew(0, dev->mmio + LAS0_DIO_STATUS);
-	writeb((0 << 6) | 0x30, dev->mmio + LAS0_UTC_CTRL);
-	writeb((1 << 6) | 0x30, dev->mmio + LAS0_UTC_CTRL);
-	writeb((2 << 6) | 0x30, dev->mmio + LAS0_UTC_CTRL);
-	writeb((3 << 6) | 0x00, dev->mmio + LAS0_UTC_CTRL);
-	/* TODO: set user out source ??? */
-}
-
-/* The RTD driver does this */
-static void rtd_pci_latency_quirk(struct comedi_device *dev,
-				  struct pci_dev *pcidev)
-{
-	unsigned char pci_latency;
-
-	pci_read_config_byte(pcidev, PCI_LATENCY_TIMER, &pci_latency);
-	if (pci_latency < 32) {
-		dev_info(dev->class_dev,
-			 "PCI latency changed from %d to %d\n",
-			 pci_latency, 32);
-		pci_write_config_byte(pcidev, PCI_LATENCY_TIMER, 32);
-	}
-}
-
-static int rtd_auto_attach(struct comedi_device *dev,
-			   unsigned long context)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	const struct rtd_boardinfo *board = NULL;
-	struct rtd_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	if (context < ARRAY_SIZE(rtd520Boards))
-		board = &rtd520Boards[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 2);
-	devpriv->las1 = pci_ioremap_bar(pcidev, 3);
-	devpriv->lcfg = pci_ioremap_bar(pcidev, 0);
-	if (!dev->mmio || !devpriv->las1 || !devpriv->lcfg)
-		return -ENOMEM;
-
-	rtd_pci_latency_quirk(dev, pcidev);
-
-	if (pcidev->irq) {
-		ret = request_irq(pcidev->irq, rtd_interrupt, IRQF_SHARED,
-				  dev->board_name, dev);
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog input subdevice */
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_COMMON | SDF_DIFF;
-	s->n_chan	= 16;
-	s->maxdata	= 0x0fff;
-	s->range_table	= board->ai_range;
-	s->len_chanlist	= RTD_MAX_CHANLIST;
-	s->insn_read	= rtd_ai_rinsn;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->do_cmd	= rtd_ai_cmd;
-		s->do_cmdtest	= rtd_ai_cmdtest;
-		s->cancel	= rtd_ai_cancel;
-	}
-
-	s = &dev->subdevices[1];
-	/* analog output subdevice */
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 2;
-	s->maxdata	= 0x0fff;
-	s->range_table	= &rtd_ao_range;
-	s->insn_write	= rtd_ao_winsn;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	/* digital i/o subdevice */
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	/* we only support port 0 right now.  Ignoring port 1 and user IO */
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= rtd_dio_insn_bits;
-	s->insn_config	= rtd_dio_insn_config;
-
-	/* timer/counter subdevices (not currently supported) */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 3;
-	s->maxdata	= 0xffff;
-
-	rtd_init_board(dev);
-
-	ret = rtd520_probe_fifo_depth(dev);
-	if (ret < 0)
-		return ret;
-	devpriv->fifosz = ret;
-
-	if (dev->irq)
-		writel(ICS_PIE | ICS_PLIE, devpriv->lcfg + PLX_INTRCS_REG);
-
-	return 0;
-}
-
-static void rtd_detach(struct comedi_device *dev)
-{
-	struct rtd_private *devpriv = dev->private;
-
-	if (devpriv) {
-		/* Shut down any board ops by resetting it */
-		if (dev->mmio && devpriv->lcfg)
-			rtd_reset(dev);
-		if (dev->irq)
-			free_irq(dev->irq, dev);
-		if (dev->mmio)
-			iounmap(dev->mmio);
-		if (devpriv->las1)
-			iounmap(devpriv->las1);
-		if (devpriv->lcfg)
-			iounmap(devpriv->lcfg);
-	}
-	comedi_pci_disable(dev);
-}
-
-static struct comedi_driver rtd520_driver = {
-	.driver_name	= "rtd520",
-	.module		= THIS_MODULE,
-	.auto_attach	= rtd_auto_attach,
-	.detach		= rtd_detach,
-};
-
-static int rtd520_pci_probe(struct pci_dev *dev,
-			    const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &rtd520_driver, id->driver_data);
-}
-
-static const struct pci_device_id rtd520_pci_table[] = {
-	{ PCI_VDEVICE(RTD, 0x7520), BOARD_DM7520 },
-	{ PCI_VDEVICE(RTD, 0x4520), BOARD_PCI4520 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, rtd520_pci_table);
-
-static struct pci_driver rtd520_pci_driver = {
-	.name		= "rtd520",
-	.id_table	= rtd520_pci_table,
-	.probe		= rtd520_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(rtd520_driver, rtd520_pci_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
deleted file mode 100644
index 340ac776e951..000000000000
--- a/drivers/staging/comedi/drivers/rti800.c
+++ /dev/null
@@ -1,362 +0,0 @@
-/*
- * comedi/drivers/rti800.c
- * Hardware driver for Analog Devices RTI-800/815 board
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: rti800
- * Description: Analog Devices RTI-800/815
- * Devices: [Analog Devices] RTI-800 (rti800), RTI-815 (rti815)
- * Author: David A. Schleef <ds@schleef.org>
- * Status: unknown
- * Updated: Fri, 05 Sep 2008 14:50:44 +0100
- *
- * Configuration options:
- *   [0] - I/O port base address
- *   [1] - IRQ (not supported / unused)
- *   [2] - A/D mux/reference (number of channels)
- *	   0 = differential
- *	   1 = pseudodifferential (common)
- *	   2 = single-ended
- *   [3] - A/D range
- *	   0 = [-10,10]
- *	   1 = [-5,5]
- *	   2 = [0,10]
- *   [4] - A/D encoding
- *	   0 = two's complement
- *	   1 = straight binary
- *   [5] - DAC 0 range
- *	   0 = [-10,10]
- *	   1 = [0,10]
- *   [6] - DAC 0 encoding
- *	   0 = two's complement
- *	   1 = straight binary
- *   [7] - DAC 1 range (same as DAC 0)
- *   [8] - DAC 1 encoding (same as DAC 0)
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-/*
- * Register map
- */
-#define RTI800_CSR		0x00
-#define RTI800_CSR_BUSY		(1 << 7)
-#define RTI800_CSR_DONE		(1 << 6)
-#define RTI800_CSR_OVERRUN	(1 << 5)
-#define RTI800_CSR_TCR		(1 << 4)
-#define RTI800_CSR_DMA_ENAB	(1 << 3)
-#define RTI800_CSR_INTR_TC	(1 << 2)
-#define RTI800_CSR_INTR_EC	(1 << 1)
-#define RTI800_CSR_INTR_OVRN	(1 << 0)
-#define RTI800_MUXGAIN		0x01
-#define RTI800_CONVERT		0x02
-#define RTI800_ADCLO		0x03
-#define RTI800_ADCHI		0x04
-#define RTI800_DAC0LO		0x05
-#define RTI800_DAC0HI		0x06
-#define RTI800_DAC1LO		0x07
-#define RTI800_DAC1HI		0x08
-#define RTI800_CLRFLAGS		0x09
-#define RTI800_DI		0x0a
-#define RTI800_DO		0x0b
-#define RTI800_9513A_DATA	0x0c
-#define RTI800_9513A_CNTRL	0x0d
-#define RTI800_9513A_STATUS	0x0d
-
-static const struct comedi_lrange range_rti800_ai_10_bipolar = {
-	4, {
-		BIP_RANGE(10),
-		BIP_RANGE(1),
-		BIP_RANGE(0.1),
-		BIP_RANGE(0.02)
-	}
-};
-
-static const struct comedi_lrange range_rti800_ai_5_bipolar = {
-	4, {
-		BIP_RANGE(5),
-		BIP_RANGE(0.5),
-		BIP_RANGE(0.05),
-		BIP_RANGE(0.01)
-	}
-};
-
-static const struct comedi_lrange range_rti800_ai_unipolar = {
-	4, {
-		UNI_RANGE(10),
-		UNI_RANGE(1),
-		UNI_RANGE(0.1),
-		UNI_RANGE(0.02)
-	}
-};
-
-static const struct comedi_lrange *const rti800_ai_ranges[] = {
-	&range_rti800_ai_10_bipolar,
-	&range_rti800_ai_5_bipolar,
-	&range_rti800_ai_unipolar,
-};
-
-static const struct comedi_lrange *const rti800_ao_ranges[] = {
-	&range_bipolar10,
-	&range_unipolar10,
-};
-
-struct rti800_board {
-	const char *name;
-	int has_ao;
-};
-
-static const struct rti800_board rti800_boardtypes[] = {
-	{
-		.name		= "rti800",
-	}, {
-		.name		= "rti815",
-		.has_ao		= 1,
-	},
-};
-
-struct rti800_private {
-	bool adc_2comp;
-	bool dac_2comp[2];
-	const struct comedi_lrange *ao_range_type_list[2];
-	unsigned char muxgain_bits;
-};
-
-static int rti800_ai_eoc(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned long context)
-{
-	unsigned char status;
-
-	status = inb(dev->iobase + RTI800_CSR);
-	if (status & RTI800_CSR_OVERRUN) {
-		outb(0, dev->iobase + RTI800_CLRFLAGS);
-		return -EOVERFLOW;
-	}
-	if (status & RTI800_CSR_DONE)
-		return 0;
-	return -EBUSY;
-}
-
-static int rti800_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct rti800_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int gain = CR_RANGE(insn->chanspec);
-	unsigned char muxgain_bits;
-	int ret;
-	int i;
-
-	inb(dev->iobase + RTI800_ADCHI);
-	outb(0, dev->iobase + RTI800_CLRFLAGS);
-
-	muxgain_bits = chan | (gain << 5);
-	if (muxgain_bits != devpriv->muxgain_bits) {
-		devpriv->muxgain_bits = muxgain_bits;
-		outb(devpriv->muxgain_bits, dev->iobase + RTI800_MUXGAIN);
-		/*
-		 * Without a delay here, the RTI_CSR_OVERRUN bit
-		 * gets set, and you will have an error.
-		 */
-		if (insn->n > 0) {
-			int delay = (gain == 0) ? 10 :
-				    (gain == 1) ? 20 :
-				    (gain == 2) ? 40 : 80;
-
-			udelay(delay);
-		}
-	}
-
-	for (i = 0; i < insn->n; i++) {
-		outb(0, dev->iobase + RTI800_CONVERT);
-
-		ret = comedi_timeout(dev, s, insn, rti800_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		data[i] = inb(dev->iobase + RTI800_ADCLO);
-		data[i] |= (inb(dev->iobase + RTI800_ADCHI) & 0xf) << 8;
-
-		if (devpriv->adc_2comp)
-			data[i] ^= 0x800;
-	}
-
-	return insn->n;
-}
-
-static int rti800_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct rti800_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int reg_lo = chan ? RTI800_DAC1LO : RTI800_DAC0LO;
-	int reg_hi = chan ? RTI800_DAC1HI : RTI800_DAC0HI;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		if (devpriv->dac_2comp[chan])
-			val ^= 0x800;
-
-		outb(val & 0xff, dev->iobase + reg_lo);
-		outb((val >> 8) & 0xff, dev->iobase + reg_hi);
-	}
-
-	return insn->n;
-}
-
-static int rti800_di_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	data[1] = inb(dev->iobase + RTI800_DI);
-	return insn->n;
-}
-
-static int rti800_do_insn_bits(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data)) {
-		/* Outputs are inverted... */
-		outb(s->state ^ 0xff, dev->iobase + RTI800_DO);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	const struct rti800_board *board = dev->board_ptr;
-	struct rti800_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x10);
-	if (ret)
-		return ret;
-
-	outb(0, dev->iobase + RTI800_CSR);
-	inb(dev->iobase + RTI800_ADCHI);
-	outb(0, dev->iobase + RTI800_CLRFLAGS);
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	devpriv->adc_2comp = (it->options[4] == 0);
-	devpriv->dac_2comp[0] = (it->options[6] == 0);
-	devpriv->dac_2comp[1] = (it->options[8] == 0);
-	/* invalid, forces the MUXGAIN register to be set when first used */
-	devpriv->muxgain_bits = 0xff;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* ai subdevice */
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	s->n_chan	= (it->options[2] ? 16 : 8);
-	s->insn_read	= rti800_ai_insn_read;
-	s->maxdata	= 0x0fff;
-	s->range_table	= (it->options[3] < ARRAY_SIZE(rti800_ai_ranges))
-				? rti800_ai_ranges[it->options[3]]
-				: &range_unknown;
-
-	s = &dev->subdevices[1];
-	if (board->has_ao) {
-		/* ao subdevice (only on rti815) */
-		s->type		= COMEDI_SUBD_AO;
-		s->subdev_flags	= SDF_WRITABLE;
-		s->n_chan	= 2;
-		s->maxdata	= 0x0fff;
-		s->range_table_list = devpriv->ao_range_type_list;
-		devpriv->ao_range_type_list[0] =
-			(it->options[5] < ARRAY_SIZE(rti800_ao_ranges))
-				? rti800_ao_ranges[it->options[5]]
-				: &range_unknown;
-		devpriv->ao_range_type_list[1] =
-			(it->options[7] < ARRAY_SIZE(rti800_ao_ranges))
-				? rti800_ao_ranges[it->options[7]]
-				: &range_unknown;
-		s->insn_write	= rti800_ao_insn_write;
-
-		ret = comedi_alloc_subdev_readback(s);
-		if (ret)
-			return ret;
-	} else {
-		s->type		= COMEDI_SUBD_UNUSED;
-	}
-
-	s = &dev->subdevices[2];
-	/* di */
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 8;
-	s->insn_bits	= rti800_di_insn_bits;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-
-	s = &dev->subdevices[3];
-	/* do */
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->insn_bits	= rti800_do_insn_bits;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-
-	/*
-	 * There is also an Am9513 timer on these boards. This subdevice
-	 * is not currently supported.
-	 */
-
-	return 0;
-}
-
-static struct comedi_driver rti800_driver = {
-	.driver_name	= "rti800",
-	.module		= THIS_MODULE,
-	.attach		= rti800_attach,
-	.detach		= comedi_legacy_detach,
-	.num_names	= ARRAY_SIZE(rti800_boardtypes),
-	.board_name	= &rti800_boardtypes[0].name,
-	.offset		= sizeof(struct rti800_board),
-};
-module_comedi_driver(rti800_driver);
-
-MODULE_DESCRIPTION("Comedi: RTI-800 Multifunction Analog/Digital board");
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/rti802.c b/drivers/staging/comedi/drivers/rti802.c
deleted file mode 100644
index 6db58fcfd496..000000000000
--- a/drivers/staging/comedi/drivers/rti802.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * rti802.c
- * Comedi driver for Analog Devices RTI-802 board
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: rti802
- * Description: Analog Devices RTI-802
- * Author: Anders Blomdell <anders.blomdell@control.lth.se>
- * Devices: [Analog Devices] RTI-802 (rti802)
- * Status: works
- *
- * Configuration Options:
- *   [0] - i/o base
- *   [1] - unused
- *   [2,4,6,8,10,12,14,16] - dac#[0-7]  0=two's comp, 1=straight
- *   [3,5,7,9,11,13,15,17] - dac#[0-7]  0=bipolar, 1=unipolar
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-/*
- * Register I/O map
- */
-#define RTI802_SELECT		0x00
-#define RTI802_DATALOW		0x01
-#define RTI802_DATAHIGH		0x02
-
-struct rti802_private {
-	enum {
-		dac_2comp, dac_straight
-	} dac_coding[8];
-	const struct comedi_lrange *range_type_list[8];
-};
-
-static int rti802_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct rti802_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	outb(chan, dev->iobase + RTI802_SELECT);
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val = data[i];
-
-		s->readback[chan] = val;
-
-		/* munge offset binary to two's complement if needed */
-		if (devpriv->dac_coding[chan] == dac_2comp)
-			val = comedi_offset_munge(s, val);
-
-		outb(val & 0xff, dev->iobase + RTI802_DATALOW);
-		outb((val >> 8) & 0xff, dev->iobase + RTI802_DATAHIGH);
-	}
-
-	return insn->n;
-}
-
-static int rti802_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct rti802_private *devpriv;
-	struct comedi_subdevice *s;
-	int i;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x04);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->maxdata	= 0xfff;
-	s->n_chan	= 8;
-	s->insn_write	= rti802_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s->range_table_list = devpriv->range_type_list;
-	for (i = 0; i < 8; i++) {
-		devpriv->dac_coding[i] = (it->options[3 + 2 * i])
-			? (dac_straight) : (dac_2comp);
-		devpriv->range_type_list[i] = (it->options[2 + 2 * i])
-			? &range_unipolar10 : &range_bipolar10;
-	}
-
-	return 0;
-}
-
-static struct comedi_driver rti802_driver = {
-	.driver_name	= "rti802",
-	.module		= THIS_MODULE,
-	.attach		= rti802_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(rti802_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Analog Devices RTI-802 board");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
deleted file mode 100644
index 6f3e8a08e75c..000000000000
--- a/drivers/staging/comedi/drivers/s526.c
+++ /dev/null
@@ -1,614 +0,0 @@
-/*
-    comedi/drivers/s526.c
-    Sensoray s526 Comedi driver
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: s526
-Description: Sensoray 526 driver
-Devices: [Sensoray] 526 (s526)
-Author: Richie
-	Everett Wang <everett.wang@everteq.com>
-Updated: Thu, 14 Sep. 2006
-Status: experimental
-
-Encoder works
-Analog input works
-Analog output works
-PWM output works
-Commands are not supported yet.
-
-Configuration Options:
-
-comedi_config /dev/comedi0 s526 0x2C0,0x3
-
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-#include <asm/byteorder.h>
-
-#define S526_START_AI_CONV	0
-#define S526_AI_READ		0
-
-/* Ports */
-#define S526_NUM_PORTS 27
-
-/* registers */
-#define REG_TCR 0x00
-#define REG_WDC 0x02
-#define REG_DAC 0x04
-#define REG_ADC 0x06
-#define REG_ADD 0x08
-#define REG_DIO 0x0A
-#define REG_IER 0x0C
-#define REG_ISR 0x0E
-#define REG_MSC 0x10
-#define REG_C0L 0x12
-#define REG_C0H 0x14
-#define REG_C0M 0x16
-#define REG_C0C 0x18
-#define REG_C1L 0x1A
-#define REG_C1H 0x1C
-#define REG_C1M 0x1E
-#define REG_C1C 0x20
-#define REG_C2L 0x22
-#define REG_C2H 0x24
-#define REG_C2M 0x26
-#define REG_C2C 0x28
-#define REG_C3L 0x2A
-#define REG_C3H 0x2C
-#define REG_C3M 0x2E
-#define REG_C3C 0x30
-#define REG_EED 0x32
-#define REG_EEC 0x34
-
-struct counter_mode_register_t {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
-	unsigned short coutSource:1;
-	unsigned short coutPolarity:1;
-	unsigned short autoLoadResetRcap:3;
-	unsigned short hwCtEnableSource:2;
-	unsigned short ctEnableCtrl:2;
-	unsigned short clockSource:2;
-	unsigned short countDir:1;
-	unsigned short countDirCtrl:1;
-	unsigned short outputRegLatchCtrl:1;
-	unsigned short preloadRegSel:1;
-	unsigned short reserved:1;
- #elif defined(__BIG_ENDIAN_BITFIELD)
-	unsigned short reserved:1;
-	unsigned short preloadRegSel:1;
-	unsigned short outputRegLatchCtrl:1;
-	unsigned short countDirCtrl:1;
-	unsigned short countDir:1;
-	unsigned short clockSource:2;
-	unsigned short ctEnableCtrl:2;
-	unsigned short hwCtEnableSource:2;
-	unsigned short autoLoadResetRcap:3;
-	unsigned short coutPolarity:1;
-	unsigned short coutSource:1;
-#else
-#error Unknown bit field order
-#endif
-};
-
-union cmReg {
-	struct counter_mode_register_t reg;
-	unsigned short value;
-};
-
-struct s526_private {
-	unsigned int gpct_config[4];
-	unsigned short ai_config;
-};
-
-static int s526_gpct_rinsn(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned long chan_iobase = dev->iobase + chan * 8;
-	unsigned int lo;
-	unsigned int hi;
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		/* Read the low word first */
-		lo = inw(chan_iobase + REG_C0L) & 0xffff;
-		hi = inw(chan_iobase + REG_C0H) & 0xff;
-
-		data[i] = (hi << 16) | lo;
-	}
-
-	return insn->n;
-}
-
-static int s526_gpct_insn_config(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct s526_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned long chan_iobase = dev->iobase + chan * 8;
-	unsigned int val;
-	union cmReg cmReg;
-
-	/*  Check what type of Counter the user requested, data[0] contains */
-	/*  the Application type */
-	switch (data[0]) {
-	case INSN_CONFIG_GPCT_QUADRATURE_ENCODER:
-		/*
-		   data[0]: Application Type
-		   data[1]: Counter Mode Register Value
-		   data[2]: Pre-load Register Value
-		   data[3]: Conter Control Register
-		 */
-		devpriv->gpct_config[chan] = data[0];
-
-#if 0
-		/*  Example of Counter Application */
-		/* One-shot (software trigger) */
-		cmReg.reg.coutSource = 0;	/*  out RCAP */
-		cmReg.reg.coutPolarity = 1;	/*  Polarity inverted */
-		cmReg.reg.autoLoadResetRcap = 0;/*  Auto load disabled */
-		cmReg.reg.hwCtEnableSource = 3;	/*  NOT RCAP */
-		cmReg.reg.ctEnableCtrl = 2;	/*  Hardware */
-		cmReg.reg.clockSource = 2;	/*  Internal */
-		cmReg.reg.countDir = 1;	/*  Down */
-		cmReg.reg.countDirCtrl = 1;	/*  Software */
-		cmReg.reg.outputRegLatchCtrl = 0;	/*  latch on read */
-		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-		cmReg.reg.reserved = 0;
-
-		outw(cmReg.value, chan_iobase + REG_C0M);
-
-		outw(0x0001, chan_iobase + REG_C0H);
-		outw(0x3C68, chan_iobase + REG_C0L);
-
-		/*  Reset the counter */
-		outw(0x8000, chan_iobase + REG_C0C);
-		/*  Load the counter from PR0 */
-		outw(0x4000, chan_iobase + REG_C0C);
-
-		/*  Reset RCAP (fires one-shot) */
-		outw(0x0008, chan_iobase + REG_C0C);
-
-#endif
-
-#if 1
-		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		outw(cmReg.value, chan_iobase + REG_C0M);
-
-		/*  Reset the counter if it is software preload */
-		if (cmReg.reg.autoLoadResetRcap == 0) {
-			/*  Reset the counter */
-			outw(0x8000, chan_iobase + REG_C0C);
-			/* Load the counter from PR0
-			 * outw(0x4000, chan_iobase + REG_C0C);
-			 */
-		}
-#else
-		/*  0 quadrature, 1 software control */
-		cmReg.reg.countDirCtrl = 0;
-
-		/*  data[1] contains GPCT_X1, GPCT_X2 or GPCT_X4 */
-		if (data[1] == GPCT_X2)
-			cmReg.reg.clockSource = 1;
-		else if (data[1] == GPCT_X4)
-			cmReg.reg.clockSource = 2;
-		else
-			cmReg.reg.clockSource = 0;
-
-		/*  When to take into account the indexpulse: */
-		/*if (data[2] == GPCT_IndexPhaseLowLow) {
-		} else if (data[2] == GPCT_IndexPhaseLowHigh) {
-		} else if (data[2] == GPCT_IndexPhaseHighLow) {
-		} else if (data[2] == GPCT_IndexPhaseHighHigh) {
-		}*/
-		/*  Take into account the index pulse? */
-		if (data[3] == GPCT_RESET_COUNTER_ON_INDEX)
-			/*  Auto load with INDEX^ */
-			cmReg.reg.autoLoadResetRcap = 4;
-
-		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		outw(cmReg.value, chan_iobase + REG_C0M);
-
-		/*  Load the pre-load register high word */
-		val = (data[2] >> 16) & 0xffff;
-		outw(val, chan_iobase + REG_C0H);
-
-		/*  Load the pre-load register low word */
-		val = data[2] & 0xffff;
-		outw(val, chan_iobase + REG_C0L);
-
-		/*  Write the Counter Control Register */
-		if (data[3]) {
-			val = data[3] & 0xffff;
-			outw(val, chan_iobase + REG_C0C);
-		}
-		/*  Reset the counter if it is software preload */
-		if (cmReg.reg.autoLoadResetRcap == 0) {
-			/*  Reset the counter */
-			outw(0x8000, chan_iobase + REG_C0C);
-			/*  Load the counter from PR0 */
-			outw(0x4000, chan_iobase + REG_C0C);
-		}
-#endif
-		break;
-
-	case INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR:
-		/*
-		   data[0]: Application Type
-		   data[1]: Counter Mode Register Value
-		   data[2]: Pre-load Register 0 Value
-		   data[3]: Pre-load Register 1 Value
-		   data[4]: Conter Control Register
-		 */
-		devpriv->gpct_config[chan] = data[0];
-
-		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-		outw(cmReg.value, chan_iobase + REG_C0M);
-
-		/*  Load the pre-load register 0 high word */
-		val = (data[2] >> 16) & 0xffff;
-		outw(val, chan_iobase + REG_C0H);
-
-		/*  Load the pre-load register 0 low word */
-		val = data[2] & 0xffff;
-		outw(val, chan_iobase + REG_C0L);
-
-		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 1;	/*  PR1 */
-		outw(cmReg.value, chan_iobase + REG_C0M);
-
-		/*  Load the pre-load register 1 high word */
-		val = (data[3] >> 16) & 0xffff;
-		outw(val, chan_iobase + REG_C0H);
-
-		/*  Load the pre-load register 1 low word */
-		val = data[3] & 0xffff;
-		outw(val, chan_iobase + REG_C0L);
-
-		/*  Write the Counter Control Register */
-		if (data[4]) {
-			val = data[4] & 0xffff;
-			outw(val, chan_iobase + REG_C0C);
-		}
-		break;
-
-	case INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR:
-		/*
-		   data[0]: Application Type
-		   data[1]: Counter Mode Register Value
-		   data[2]: Pre-load Register 0 Value
-		   data[3]: Pre-load Register 1 Value
-		   data[4]: Conter Control Register
-		 */
-		devpriv->gpct_config[chan] = data[0];
-
-		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 0;	/*  PR0 */
-		outw(cmReg.value, chan_iobase + REG_C0M);
-
-		/*  Load the pre-load register 0 high word */
-		val = (data[2] >> 16) & 0xffff;
-		outw(val, chan_iobase + REG_C0H);
-
-		/*  Load the pre-load register 0 low word */
-		val = data[2] & 0xffff;
-		outw(val, chan_iobase + REG_C0L);
-
-		/*  Set Counter Mode Register */
-		cmReg.value = data[1] & 0xffff;
-		cmReg.reg.preloadRegSel = 1;	/*  PR1 */
-		outw(cmReg.value, chan_iobase + REG_C0M);
-
-		/*  Load the pre-load register 1 high word */
-		val = (data[3] >> 16) & 0xffff;
-		outw(val, chan_iobase + REG_C0H);
-
-		/*  Load the pre-load register 1 low word */
-		val = data[3] & 0xffff;
-		outw(val, chan_iobase + REG_C0L);
-
-		/*  Write the Counter Control Register */
-		if (data[4]) {
-			val = data[4] & 0xffff;
-			outw(val, chan_iobase + REG_C0C);
-		}
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-static int s526_gpct_winsn(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   struct comedi_insn *insn,
-			   unsigned int *data)
-{
-	struct s526_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned long chan_iobase = dev->iobase + chan * 8;
-
-	inw(chan_iobase + REG_C0M);	/* Is this read required? */
-
-	/*  Check what Application of Counter this channel is configured for */
-	switch (devpriv->gpct_config[chan]) {
-	case INSN_CONFIG_GPCT_PULSE_TRAIN_GENERATOR:
-		/* data[0] contains the PULSE_WIDTH
-		   data[1] contains the PULSE_PERIOD
-		   @pre PULSE_PERIOD > PULSE_WIDTH > 0
-		   The above periods must be expressed as a multiple of the
-		   pulse frequency on the selected source
-		 */
-		if ((data[1] <= data[0]) || !data[0])
-			return -EINVAL;
-
-		/* Fall thru to write the PULSE_WIDTH */
-
-	case INSN_CONFIG_GPCT_QUADRATURE_ENCODER:
-	case INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR:
-		outw((data[0] >> 16) & 0xffff, chan_iobase + REG_C0H);
-		outw(data[0] & 0xffff, chan_iobase + REG_C0L);
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
-#define ISR_ADC_DONE 0x4
-static int s526_ai_insn_config(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	struct s526_private *devpriv = dev->private;
-	int result = -EINVAL;
-
-	if (insn->n < 1)
-		return result;
-
-	result = insn->n;
-
-	/* data[0] : channels was set in relevant bits.
-	   data[1] : delay
-	 */
-	/* COMMENT: abbotti 2008-07-24: I don't know why you'd want to
-	 * enable channels here.  The channel should be enabled in the
-	 * INSN_READ handler. */
-
-	/*  Enable ADC interrupt */
-	outw(ISR_ADC_DONE, dev->iobase + REG_IER);
-	devpriv->ai_config = (data[0] & 0x3ff) << 5;
-	if (data[1] > 0)
-		devpriv->ai_config |= 0x8000;	/* set the delay */
-
-	devpriv->ai_config |= 0x0001;		/* ADC start bit */
-
-	return result;
-}
-
-static int s526_ai_eoc(struct comedi_device *dev,
-		       struct comedi_subdevice *s,
-		       struct comedi_insn *insn,
-		       unsigned long context)
-{
-	unsigned int status;
-
-	status = inw(dev->iobase + REG_ISR);
-	if (status & ISR_ADC_DONE)
-		return 0;
-	return -EBUSY;
-}
-
-static int s526_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
-			 struct comedi_insn *insn, unsigned int *data)
-{
-	struct s526_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int n;
-	unsigned short value;
-	unsigned int d;
-	int ret;
-
-	/* Set configured delay, enable channel for this channel only,
-	 * select "ADC read" channel, set "ADC start" bit. */
-	value = (devpriv->ai_config & 0x8000) |
-		((1 << 5) << chan) | (chan << 1) | 0x0001;
-
-	/* convert n samples */
-	for (n = 0; n < insn->n; n++) {
-		/* trigger conversion */
-		outw(value, dev->iobase + REG_ADC);
-
-		/* wait for conversion to end */
-		ret = comedi_timeout(dev, s, insn, s526_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		outw(ISR_ADC_DONE, dev->iobase + REG_ISR);
-
-		/* read data */
-		d = inw(dev->iobase + REG_ADD);
-
-		/* munge data */
-		data[n] = d ^ 0x8000;
-	}
-
-	/* return the number of samples read/written */
-	return n;
-}
-
-static int s526_ao_insn_write(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	int i;
-
-	outw(chan << 1, dev->iobase + REG_DAC);
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-		outw(val, dev->iobase + REG_ADD);
-		/* starts the D/A conversion */
-		outw((chan << 1) | 1, dev->iobase + REG_DAC);
-	}
-	s->readback[chan] = val;
-
-	return insn->n;
-}
-
-static int s526_dio_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + REG_DIO);
-
-	data[1] = inw(dev->iobase + REG_DIO) & 0xff;
-
-	return insn->n;
-}
-
-static int s526_dio_insn_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	int ret;
-
-	if (chan < 4)
-		mask = 0x0f;
-	else
-		mask = 0xf0;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, mask);
-	if (ret)
-		return ret;
-
-	/* bit 10/11 set the group 1/2's mode */
-	if (s->io_bits & 0x0f)
-		s->state |= (1 << 10);
-	else
-		s->state &= ~(1 << 10);
-	if (s->io_bits & 0xf0)
-		s->state |= (1 << 11);
-	else
-		s->state &= ~(1 << 11);
-
-	outw(s->state, dev->iobase + REG_DIO);
-
-	return insn->n;
-}
-
-static int s526_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct s526_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_request_region(dev, it->options[0], 0x40);
-	if (ret)
-		return ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_alloc_subdevices(dev, 4);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* GENERAL-PURPOSE COUNTER/TIME (GPCT) */
-	s->type = COMEDI_SUBD_COUNTER;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL;
-	s->n_chan = 4;
-	s->maxdata = 0x00ffffff;	/* 24 bit counter */
-	s->insn_read = s526_gpct_rinsn;
-	s->insn_config = s526_gpct_insn_config;
-	s->insn_write = s526_gpct_winsn;
-
-	s = &dev->subdevices[1];
-	/* analog input subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_DIFF;
-	/* channels 0 to 7 are the regular differential inputs */
-	/* channel 8 is "reference 0" (+10V), channel 9 is "reference 1" (0V) */
-	s->n_chan = 10;
-	s->maxdata = 0xffff;
-	s->range_table = &range_bipolar10;
-	s->len_chanlist = 16;
-	s->insn_read = s526_ai_rinsn;
-	s->insn_config = s526_ai_insn_config;
-
-	s = &dev->subdevices[2];
-	/* analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 4;
-	s->maxdata = 0xffff;
-	s->range_table = &range_bipolar10;
-	s->insn_write = s526_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[3];
-	/* digital i/o subdevice */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = s526_dio_insn_bits;
-	s->insn_config = s526_dio_insn_config;
-
-	return 0;
-}
-
-static struct comedi_driver s526_driver = {
-	.driver_name	= "s526",
-	.module		= THIS_MODULE,
-	.attach		= s526_attach,
-	.detach		= comedi_legacy_detach,
-};
-module_comedi_driver(s526_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
deleted file mode 100644
index 35f0f676eb28..000000000000
--- a/drivers/staging/comedi/drivers/s626.c
+++ /dev/null
@@ -1,2921 +0,0 @@
-/*
- * comedi/drivers/s626.c
- * Sensoray s626 Comedi driver
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * Based on Sensoray Model 626 Linux driver Version 0.2
- * Copyright (C) 2002-2004 Sensoray Co., Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: s626
- * Description: Sensoray 626 driver
- * Devices: [Sensoray] 626 (s626)
- * Authors: Gianluca Palli <gpalli@deis.unibo.it>,
- * Updated: Fri, 15 Feb 2008 10:28:42 +0000
- * Status: experimental
-
- * Configuration options: not applicable, uses PCI auto config
-
- * INSN_CONFIG instructions:
- *   analog input:
- *    none
- *
- *   analog output:
- *    none
- *
- *   digital channel:
- *    s626 has 3 dio subdevices (2,3 and 4) each with 16 i/o channels
- *    supported configuration options:
- *    INSN_CONFIG_DIO_QUERY
- *    COMEDI_INPUT
- *    COMEDI_OUTPUT
- *
- *   encoder:
- *    Every channel must be configured before reading.
- *
- *   Example code
- *
- *    insn.insn=INSN_CONFIG;   //configuration instruction
- *    insn.n=1;                //number of operation (must be 1)
- *    insn.data=&initialvalue; //initial value loaded into encoder
- *                             //during configuration
- *    insn.subdev=5;           //encoder subdevice
- *    insn.chanspec=CR_PACK(encoder_channel,0,AREF_OTHER); //encoder_channel
- *                                                         //to configure
- *
- *    comedi_do_insn(cf,&insn); //executing configuration
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-#include "../comedi_pci.h"
-
-#include "s626.h"
-
-struct s626_buffer_dma {
-	dma_addr_t physical_base;
-	void *logical_base;
-};
-
-struct s626_private {
-	uint8_t ai_cmd_running;		/* ai_cmd is running */
-	unsigned int ai_sample_timer;	/* time between samples in
-					 * units of the timer */
-	int ai_convert_count;		/* conversion counter */
-	unsigned int ai_convert_timer;	/* time between conversion in
-					 * units of the timer */
-	uint16_t counter_int_enabs;	/* counter interrupt enable mask
-					 * for MISC2 register */
-	uint8_t adc_items;		/* number of items in ADC poll list */
-	struct s626_buffer_dma rps_buf;	/* DMA buffer used to hold ADC (RPS1)
-					 * program */
-	struct s626_buffer_dma ana_buf;	/* DMA buffer used to receive ADC data
-					 * and hold DAC data */
-	uint32_t *dac_wbuf;		/* pointer to logical adrs of DMA buffer
-					 * used to hold DAC data */
-	uint16_t dacpol;		/* image of DAC polarity register */
-	uint8_t trim_setpoint[12];	/* images of TrimDAC setpoints */
-	uint32_t i2c_adrs;		/* I2C device address for onboard EEPROM
-					 * (board rev dependent) */
-};
-
-/* Counter overflow/index event flag masks for RDMISC2. */
-#define S626_INDXMASK(C) (1 << (((C) > 2) ? ((C) * 2 - 1) : ((C) * 2 +  4)))
-#define S626_OVERMASK(C) (1 << (((C) > 2) ? ((C) * 2 + 5) : ((C) * 2 + 10)))
-
-/*
- * Enable/disable a function or test status bit(s) that are accessed
- * through Main Control Registers 1 or 2.
- */
-static void s626_mc_enable(struct comedi_device *dev,
-			   unsigned int cmd, unsigned int reg)
-{
-	unsigned int val = (cmd << 16) | cmd;
-
-	mmiowb();
-	writel(val, dev->mmio + reg);
-}
-
-static void s626_mc_disable(struct comedi_device *dev,
-			    unsigned int cmd, unsigned int reg)
-{
-	writel(cmd << 16, dev->mmio + reg);
-	mmiowb();
-}
-
-static bool s626_mc_test(struct comedi_device *dev,
-			 unsigned int cmd, unsigned int reg)
-{
-	unsigned int val;
-
-	val = readl(dev->mmio + reg);
-
-	return (val & cmd) ? true : false;
-}
-
-#define S626_BUGFIX_STREG(REGADRS)   ((REGADRS) - 4)
-
-/* Write a time slot control record to TSL2. */
-#define S626_VECTPORT(VECTNUM)		(S626_P_TSL2 + ((VECTNUM) << 2))
-
-static const struct comedi_lrange s626_range_table = {
-	2, {
-		BIP_RANGE(5),
-		BIP_RANGE(10)
-	}
-};
-
-/*
- * Execute a DEBI transfer.  This must be called from within a critical section.
- */
-static void s626_debi_transfer(struct comedi_device *dev)
-{
-	static const int timeout = 10000;
-	int i;
-
-	/* Initiate upload of shadow RAM to DEBI control register */
-	s626_mc_enable(dev, S626_MC2_UPLD_DEBI, S626_P_MC2);
-
-	/*
-	 * Wait for completion of upload from shadow RAM to
-	 * DEBI control register.
-	 */
-	for (i = 0; i < timeout; i++) {
-		if (s626_mc_test(dev, S626_MC2_UPLD_DEBI, S626_P_MC2))
-			break;
-		udelay(1);
-	}
-	if (i == timeout)
-		dev_err(dev->class_dev,
-			"Timeout while uploading to DEBI control register\n");
-
-	/* Wait until DEBI transfer is done */
-	for (i = 0; i < timeout; i++) {
-		if (!(readl(dev->mmio + S626_P_PSR) & S626_PSR_DEBI_S))
-			break;
-		udelay(1);
-	}
-	if (i == timeout)
-		dev_err(dev->class_dev, "DEBI transfer timeout\n");
-}
-
-/*
- * Read a value from a gate array register.
- */
-static uint16_t s626_debi_read(struct comedi_device *dev, uint16_t addr)
-{
-	/* Set up DEBI control register value in shadow RAM */
-	writel(S626_DEBI_CMD_RDWORD | addr, dev->mmio + S626_P_DEBICMD);
-
-	/*  Execute the DEBI transfer. */
-	s626_debi_transfer(dev);
-
-	return readl(dev->mmio + S626_P_DEBIAD);
-}
-
-/*
- * Write a value to a gate array register.
- */
-static void s626_debi_write(struct comedi_device *dev, uint16_t addr,
-			    uint16_t wdata)
-{
-	/* Set up DEBI control register value in shadow RAM */
-	writel(S626_DEBI_CMD_WRWORD | addr, dev->mmio + S626_P_DEBICMD);
-	writel(wdata, dev->mmio + S626_P_DEBIAD);
-
-	/*  Execute the DEBI transfer. */
-	s626_debi_transfer(dev);
-}
-
-/*
- * Replace the specified bits in a gate array register.  Imports: mask
- * specifies bits that are to be preserved, wdata is new value to be
- * or'd with the masked original.
- */
-static void s626_debi_replace(struct comedi_device *dev, unsigned int addr,
-			      unsigned int mask, unsigned int wdata)
-{
-	unsigned int val;
-
-	addr &= 0xffff;
-	writel(S626_DEBI_CMD_RDWORD | addr, dev->mmio + S626_P_DEBICMD);
-	s626_debi_transfer(dev);
-
-	writel(S626_DEBI_CMD_WRWORD | addr, dev->mmio + S626_P_DEBICMD);
-	val = readl(dev->mmio + S626_P_DEBIAD);
-	val &= mask;
-	val |= wdata;
-	writel(val & 0xffff, dev->mmio + S626_P_DEBIAD);
-	s626_debi_transfer(dev);
-}
-
-/* **************  EEPROM ACCESS FUNCTIONS  ************** */
-
-static int s626_i2c_handshake_eoc(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned long context)
-{
-	bool status;
-
-	status = s626_mc_test(dev, S626_MC2_UPLD_IIC, S626_P_MC2);
-	if (status)
-		return 0;
-	return -EBUSY;
-}
-
-static int s626_i2c_handshake(struct comedi_device *dev, uint32_t val)
-{
-	unsigned int ctrl;
-	int ret;
-
-	/* Write I2C command to I2C Transfer Control shadow register */
-	writel(val, dev->mmio + S626_P_I2CCTRL);
-
-	/*
-	 * Upload I2C shadow registers into working registers and
-	 * wait for upload confirmation.
-	 */
-	s626_mc_enable(dev, S626_MC2_UPLD_IIC, S626_P_MC2);
-	ret = comedi_timeout(dev, NULL, NULL, s626_i2c_handshake_eoc, 0);
-	if (ret)
-		return ret;
-
-	/* Wait until I2C bus transfer is finished or an error occurs */
-	do {
-		ctrl = readl(dev->mmio + S626_P_I2CCTRL);
-	} while ((ctrl & (S626_I2C_BUSY | S626_I2C_ERR)) == S626_I2C_BUSY);
-
-	/* Return non-zero if I2C error occurred */
-	return ctrl & S626_I2C_ERR;
-}
-
-/* Read uint8_t from EEPROM. */
-static uint8_t s626_i2c_read(struct comedi_device *dev, uint8_t addr)
-{
-	struct s626_private *devpriv = dev->private;
-
-	/*
-	 * Send EEPROM target address:
-	 *  Byte2 = I2C command: write to I2C EEPROM device.
-	 *  Byte1 = EEPROM internal target address.
-	 *  Byte0 = Not sent.
-	 */
-	if (s626_i2c_handshake(dev, S626_I2C_B2(S626_I2C_ATTRSTART,
-						devpriv->i2c_adrs) |
-				    S626_I2C_B1(S626_I2C_ATTRSTOP, addr) |
-				    S626_I2C_B0(S626_I2C_ATTRNOP, 0)))
-		/* Abort function and declare error if handshake failed. */
-		return 0;
-
-	/*
-	 * Execute EEPROM read:
-	 *  Byte2 = I2C command: read from I2C EEPROM device.
-	 *  Byte1 receives uint8_t from EEPROM.
-	 *  Byte0 = Not sent.
-	 */
-	if (s626_i2c_handshake(dev, S626_I2C_B2(S626_I2C_ATTRSTART,
-						(devpriv->i2c_adrs | 1)) |
-				    S626_I2C_B1(S626_I2C_ATTRSTOP, 0) |
-				    S626_I2C_B0(S626_I2C_ATTRNOP, 0)))
-		/* Abort function and declare error if handshake failed. */
-		return 0;
-
-	return (readl(dev->mmio + S626_P_I2CCTRL) >> 16) & 0xff;
-}
-
-/* ***********  DAC FUNCTIONS *********** */
-
-/* TrimDac LogicalChan-to-PhysicalChan mapping table. */
-static const uint8_t s626_trimchan[] = { 10, 9, 8, 3, 2, 7, 6, 1, 0, 5, 4 };
-
-/* TrimDac LogicalChan-to-EepromAdrs mapping table. */
-static const uint8_t s626_trimadrs[] = {
-	0x40, 0x41, 0x42, 0x50, 0x51, 0x52, 0x53, 0x60, 0x61, 0x62, 0x63
-};
-
-enum {
-	s626_send_dac_wait_not_mc1_a2out,
-	s626_send_dac_wait_ssr_af2_out,
-	s626_send_dac_wait_fb_buffer2_msb_00,
-	s626_send_dac_wait_fb_buffer2_msb_ff
-};
-
-static int s626_send_dac_eoc(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned long context)
-{
-	unsigned int status;
-
-	switch (context) {
-	case s626_send_dac_wait_not_mc1_a2out:
-		status = readl(dev->mmio + S626_P_MC1);
-		if (!(status & S626_MC1_A2OUT))
-			return 0;
-		break;
-	case s626_send_dac_wait_ssr_af2_out:
-		status = readl(dev->mmio + S626_P_SSR);
-		if (status & S626_SSR_AF2_OUT)
-			return 0;
-		break;
-	case s626_send_dac_wait_fb_buffer2_msb_00:
-		status = readl(dev->mmio + S626_P_FB_BUFFER2);
-		if (!(status & 0xff000000))
-			return 0;
-		break;
-	case s626_send_dac_wait_fb_buffer2_msb_ff:
-		status = readl(dev->mmio + S626_P_FB_BUFFER2);
-		if (status & 0xff000000)
-			return 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return -EBUSY;
-}
-
-/*
- * Private helper function: Transmit serial data to DAC via Audio
- * channel 2.  Assumes: (1) TSL2 slot records initialized, and (2)
- * dacpol contains valid target image.
- */
-static int s626_send_dac(struct comedi_device *dev, uint32_t val)
-{
-	struct s626_private *devpriv = dev->private;
-	int ret;
-
-	/* START THE SERIAL CLOCK RUNNING ------------- */
-
-	/*
-	 * Assert DAC polarity control and enable gating of DAC serial clock
-	 * and audio bit stream signals.  At this point in time we must be
-	 * assured of being in time slot 0.  If we are not in slot 0, the
-	 * serial clock and audio stream signals will be disabled; this is
-	 * because the following s626_debi_write statement (which enables
-	 * signals to be passed through the gate array) would execute before
-	 * the trailing edge of WS1/WS3 (which turns off the signals), thus
-	 * causing the signals to be inactive during the DAC write.
-	 */
-	s626_debi_write(dev, S626_LP_DACPOL, devpriv->dacpol);
-
-	/* TRANSFER OUTPUT DWORD VALUE INTO A2'S OUTPUT FIFO ---------------- */
-
-	/* Copy DAC setpoint value to DAC's output DMA buffer. */
-	/* writel(val, dev->mmio + (uint32_t)devpriv->dac_wbuf); */
-	*devpriv->dac_wbuf = val;
-
-	/*
-	 * Enable the output DMA transfer. This will cause the DMAC to copy
-	 * the DAC's data value to A2's output FIFO. The DMA transfer will
-	 * then immediately terminate because the protection address is
-	 * reached upon transfer of the first DWORD value.
-	 */
-	s626_mc_enable(dev, S626_MC1_A2OUT, S626_P_MC1);
-
-	/* While the DMA transfer is executing ... */
-
-	/*
-	 * Reset Audio2 output FIFO's underflow flag (along with any
-	 * other FIFO underflow/overflow flags). When set, this flag
-	 * will indicate that we have emerged from slot 0.
-	 */
-	writel(S626_ISR_AFOU, dev->mmio + S626_P_ISR);
-
-	/*
-	 * Wait for the DMA transfer to finish so that there will be data
-	 * available in the FIFO when time slot 1 tries to transfer a DWORD
-	 * from the FIFO to the output buffer register.  We test for DMA
-	 * Done by polling the DMAC enable flag; this flag is automatically
-	 * cleared when the transfer has finished.
-	 */
-	ret = comedi_timeout(dev, NULL, NULL, s626_send_dac_eoc,
-			     s626_send_dac_wait_not_mc1_a2out);
-	if (ret) {
-		dev_err(dev->class_dev, "DMA transfer timeout\n");
-		return ret;
-	}
-
-	/* START THE OUTPUT STREAM TO THE TARGET DAC -------------------- */
-
-	/*
-	 * FIFO data is now available, so we enable execution of time slots
-	 * 1 and higher by clearing the EOS flag in slot 0.  Note that SD3
-	 * will be shifted in and stored in FB_BUFFER2 for end-of-slot-list
-	 * detection.
-	 */
-	writel(S626_XSD2 | S626_RSD3 | S626_SIB_A2,
-	       dev->mmio + S626_VECTPORT(0));
-
-	/*
-	 * Wait for slot 1 to execute to ensure that the Packet will be
-	 * transmitted.  This is detected by polling the Audio2 output FIFO
-	 * underflow flag, which will be set when slot 1 execution has
-	 * finished transferring the DAC's data DWORD from the output FIFO
-	 * to the output buffer register.
-	 */
-	ret = comedi_timeout(dev, NULL, NULL, s626_send_dac_eoc,
-			     s626_send_dac_wait_ssr_af2_out);
-	if (ret) {
-		dev_err(dev->class_dev,
-			"TSL timeout waiting for slot 1 to execute\n");
-		return ret;
-	}
-
-	/*
-	 * Set up to trap execution at slot 0 when the TSL sequencer cycles
-	 * back to slot 0 after executing the EOS in slot 5.  Also,
-	 * simultaneously shift out and in the 0x00 that is ALWAYS the value
-	 * stored in the last byte to be shifted out of the FIFO's DWORD
-	 * buffer register.
-	 */
-	writel(S626_XSD2 | S626_XFIFO_2 | S626_RSD2 | S626_SIB_A2 | S626_EOS,
-	       dev->mmio + S626_VECTPORT(0));
-
-	/* WAIT FOR THE TRANSACTION TO FINISH ----------------------- */
-
-	/*
-	 * Wait for the TSL to finish executing all time slots before
-	 * exiting this function.  We must do this so that the next DAC
-	 * write doesn't start, thereby enabling clock/chip select signals:
-	 *
-	 * 1. Before the TSL sequence cycles back to slot 0, which disables
-	 *    the clock/cs signal gating and traps slot // list execution.
-	 *    we have not yet finished slot 5 then the clock/cs signals are
-	 *    still gated and we have not finished transmitting the stream.
-	 *
-	 * 2. While slots 2-5 are executing due to a late slot 0 trap.  In
-	 *    this case, the slot sequence is currently repeating, but with
-	 *    clock/cs signals disabled.  We must wait for slot 0 to trap
-	 *    execution before setting up the next DAC setpoint DMA transfer
-	 *    and enabling the clock/cs signals.  To detect the end of slot 5,
-	 *    we test for the FB_BUFFER2 MSB contents to be equal to 0xFF.  If
-	 *    the TSL has not yet finished executing slot 5 ...
-	 */
-	if (readl(dev->mmio + S626_P_FB_BUFFER2) & 0xff000000) {
-		/*
-		 * The trap was set on time and we are still executing somewhere
-		 * in slots 2-5, so we now wait for slot 0 to execute and trap
-		 * TSL execution.  This is detected when FB_BUFFER2 MSB changes
-		 * from 0xFF to 0x00, which slot 0 causes to happen by shifting
-		 * out/in on SD2 the 0x00 that is always referenced by slot 5.
-		 */
-		ret = comedi_timeout(dev, NULL, NULL, s626_send_dac_eoc,
-				     s626_send_dac_wait_fb_buffer2_msb_00);
-		if (ret) {
-			dev_err(dev->class_dev,
-				"TSL timeout waiting for slot 0 to execute\n");
-			return ret;
-		}
-	}
-	/*
-	 * Either (1) we were too late setting the slot 0 trap; the TSL
-	 * sequencer restarted slot 0 before we could set the EOS trap flag,
-	 * or (2) we were not late and execution is now trapped at slot 0.
-	 * In either case, we must now change slot 0 so that it will store
-	 * value 0xFF (instead of 0x00) to FB_BUFFER2 next time it executes.
-	 * In order to do this, we reprogram slot 0 so that it will shift in
-	 * SD3, which is driven only by a pull-up resistor.
-	 */
-	writel(S626_RSD3 | S626_SIB_A2 | S626_EOS,
-	       dev->mmio + S626_VECTPORT(0));
-
-	/*
-	 * Wait for slot 0 to execute, at which time the TSL is setup for
-	 * the next DAC write.  This is detected when FB_BUFFER2 MSB changes
-	 * from 0x00 to 0xFF.
-	 */
-	ret = comedi_timeout(dev, NULL, NULL, s626_send_dac_eoc,
-			     s626_send_dac_wait_fb_buffer2_msb_ff);
-	if (ret) {
-		dev_err(dev->class_dev,
-			"TSL timeout waiting for slot 0 to execute\n");
-		return ret;
-	}
-	return 0;
-}
-
-/*
- * Private helper function: Write setpoint to an application DAC channel.
- */
-static int s626_set_dac(struct comedi_device *dev,
-			uint16_t chan, int16_t dacdata)
-{
-	struct s626_private *devpriv = dev->private;
-	uint16_t signmask;
-	uint32_t ws_image;
-	uint32_t val;
-
-	/*
-	 * Adjust DAC data polarity and set up Polarity Control Register image.
-	 */
-	signmask = 1 << chan;
-	if (dacdata < 0) {
-		dacdata = -dacdata;
-		devpriv->dacpol |= signmask;
-	} else {
-		devpriv->dacpol &= ~signmask;
-	}
-
-	/* Limit DAC setpoint value to valid range. */
-	if ((uint16_t)dacdata > 0x1FFF)
-		dacdata = 0x1FFF;
-
-	/*
-	 * Set up TSL2 records (aka "vectors") for DAC update.  Vectors V2
-	 * and V3 transmit the setpoint to the target DAC.  V4 and V5 send
-	 * data to a non-existent TrimDac channel just to keep the clock
-	 * running after sending data to the target DAC.  This is necessary
-	 * to eliminate the clock glitch that would otherwise occur at the
-	 * end of the target DAC's serial data stream.  When the sequence
-	 * restarts at V0 (after executing V5), the gate array automatically
-	 * disables gating for the DAC clock and all DAC chip selects.
-	 */
-
-	/* Choose DAC chip select to be asserted */
-	ws_image = (chan & 2) ? S626_WS1 : S626_WS2;
-	/* Slot 2: Transmit high data byte to target DAC */
-	writel(S626_XSD2 | S626_XFIFO_1 | ws_image,
-	       dev->mmio + S626_VECTPORT(2));
-	/* Slot 3: Transmit low data byte to target DAC */
-	writel(S626_XSD2 | S626_XFIFO_0 | ws_image,
-	       dev->mmio + S626_VECTPORT(3));
-	/* Slot 4: Transmit to non-existent TrimDac channel to keep clock */
-	writel(S626_XSD2 | S626_XFIFO_3 | S626_WS3,
-	       dev->mmio + S626_VECTPORT(4));
-	/* Slot 5: running after writing target DAC's low data byte */
-	writel(S626_XSD2 | S626_XFIFO_2 | S626_WS3 | S626_EOS,
-	       dev->mmio + S626_VECTPORT(5));
-
-	/*
-	 * Construct and transmit target DAC's serial packet:
-	 * (A10D DDDD), (DDDD DDDD), (0x0F), (0x00) where A is chan<0>,
-	 * and D<12:0> is the DAC setpoint.  Append a WORD value (that writes
-	 * to a  non-existent TrimDac channel) that serves to keep the clock
-	 * running after the packet has been sent to the target DAC.
-	 */
-	val = 0x0F000000;	/* Continue clock after target DAC data
-				 * (write to non-existent trimdac). */
-	val |= 0x00004000;	/* Address the two main dual-DAC devices
-				 * (TSL's chip select enables target device). */
-	val |= ((uint32_t)(chan & 1) << 15);	/* Address the DAC channel
-						 * within the device. */
-	val |= (uint32_t)dacdata;	/* Include DAC setpoint data. */
-	return s626_send_dac(dev, val);
-}
-
-static int s626_write_trim_dac(struct comedi_device *dev,
-			       uint8_t logical_chan, uint8_t dac_data)
-{
-	struct s626_private *devpriv = dev->private;
-	uint32_t chan;
-
-	/*
-	 * Save the new setpoint in case the application needs to read it back
-	 * later.
-	 */
-	devpriv->trim_setpoint[logical_chan] = (uint8_t)dac_data;
-
-	/* Map logical channel number to physical channel number. */
-	chan = s626_trimchan[logical_chan];
-
-	/*
-	 * Set up TSL2 records for TrimDac write operation.  All slots shift
-	 * 0xFF in from pulled-up SD3 so that the end of the slot sequence
-	 * can be detected.
-	 */
-
-	/* Slot 2: Send high uint8_t to target TrimDac */
-	writel(S626_XSD2 | S626_XFIFO_1 | S626_WS3,
-	       dev->mmio + S626_VECTPORT(2));
-	/* Slot 3: Send low uint8_t to target TrimDac */
-	writel(S626_XSD2 | S626_XFIFO_0 | S626_WS3,
-	       dev->mmio + S626_VECTPORT(3));
-	/* Slot 4: Send NOP high uint8_t to DAC0 to keep clock running */
-	writel(S626_XSD2 | S626_XFIFO_3 | S626_WS1,
-	       dev->mmio + S626_VECTPORT(4));
-	/* Slot 5: Send NOP low  uint8_t to DAC0 */
-	writel(S626_XSD2 | S626_XFIFO_2 | S626_WS1 | S626_EOS,
-	       dev->mmio + S626_VECTPORT(5));
-
-	/*
-	 * Construct and transmit target DAC's serial packet:
-	 * (0000 AAAA), (DDDD DDDD), (0x00), (0x00) where A<3:0> is the
-	 * DAC channel's address, and D<7:0> is the DAC setpoint.  Append a
-	 * WORD value (that writes a channel 0 NOP command to a non-existent
-	 * main DAC channel) that serves to keep the clock running after the
-	 * packet has been sent to the target DAC.
-	 */
-
-	/*
-	 * Address the DAC channel within the trimdac device.
-	 * Include DAC setpoint data.
-	 */
-	return s626_send_dac(dev, (chan << 8) | dac_data);
-}
-
-static int s626_load_trim_dacs(struct comedi_device *dev)
-{
-	uint8_t i;
-	int ret;
-
-	/* Copy TrimDac setpoint values from EEPROM to TrimDacs. */
-	for (i = 0; i < ARRAY_SIZE(s626_trimchan); i++) {
-		ret = s626_write_trim_dac(dev, i,
-					  s626_i2c_read(dev, s626_trimadrs[i]));
-		if (ret)
-			return ret;
-	}
-	return 0;
-}
-
-/* ******  COUNTER FUNCTIONS  ******* */
-
-/*
- * All counter functions address a specific counter by means of the
- * "Counter" argument, which is a logical counter number.  The Counter
- * argument may have any of the following legal values: 0=0A, 1=1A,
- * 2=2A, 3=0B, 4=1B, 5=2B.
- */
-
-/*
- * Return/set a counter pair's latch trigger source.  0: On read
- * access, 1: A index latches A, 2: B index latches B, 3: A overflow
- * latches B.
- */
-static void s626_set_latch_source(struct comedi_device *dev,
-				  unsigned int chan, uint16_t value)
-{
-	s626_debi_replace(dev, S626_LP_CRB(chan),
-			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_LATCHSRC),
-			  S626_SET_CRB_LATCHSRC(value));
-}
-
-/*
- * Write value into counter preload register.
- */
-static void s626_preload(struct comedi_device *dev,
-			 unsigned int chan, uint32_t value)
-{
-	s626_debi_write(dev, S626_LP_CNTR(chan), value);
-	s626_debi_write(dev, S626_LP_CNTR(chan) + 2, value >> 16);
-}
-
-/* ******  PRIVATE COUNTER FUNCTIONS ****** */
-
-/*
- * Reset a counter's index and overflow event capture flags.
- */
-static void s626_reset_cap_flags(struct comedi_device *dev,
-				 unsigned int chan)
-{
-	uint16_t set;
-
-	set = S626_SET_CRB_INTRESETCMD(1);
-	if (chan < 3)
-		set |= S626_SET_CRB_INTRESET_A(1);
-	else
-		set |= S626_SET_CRB_INTRESET_B(1);
-
-	s626_debi_replace(dev, S626_LP_CRB(chan), ~S626_CRBMSK_INTCTRL, set);
-}
-
-#ifdef unused
-/*
- * Return counter setup in a format (COUNTER_SETUP) that is consistent
- * for both A and B counters.
- */
-static uint16_t s626_get_mode_a(struct comedi_device *dev,
-				unsigned int chan)
-{
-	uint16_t cra;
-	uint16_t crb;
-	uint16_t setup;
-	unsigned cntsrc, clkmult, clkpol, encmode;
-
-	/* Fetch CRA and CRB register images. */
-	cra = s626_debi_read(dev, S626_LP_CRA(chan));
-	crb = s626_debi_read(dev, S626_LP_CRB(chan));
-
-	/*
-	 * Populate the standardized counter setup bit fields.
-	 */
-	setup =
-		/* LoadSrc  = LoadSrcA. */
-		S626_SET_STD_LOADSRC(S626_GET_CRA_LOADSRC_A(cra)) |
-		/* LatchSrc = LatchSrcA. */
-		S626_SET_STD_LATCHSRC(S626_GET_CRB_LATCHSRC(crb)) |
-		/* IntSrc   = IntSrcA. */
-		S626_SET_STD_INTSRC(S626_GET_CRA_INTSRC_A(cra)) |
-		/* IndxSrc  = IndxSrcA. */
-		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_A(cra)) |
-		/* IndxPol  = IndxPolA. */
-		S626_SET_STD_INDXPOL(S626_GET_CRA_INDXPOL_A(cra)) |
-		/* ClkEnab  = ClkEnabA. */
-		S626_SET_STD_CLKENAB(S626_GET_CRB_CLKENAB_A(crb));
-
-	/* Adjust mode-dependent parameters. */
-	cntsrc = S626_GET_CRA_CNTSRC_A(cra);
-	if (cntsrc & S626_CNTSRC_SYSCLK) {
-		/* Timer mode (CntSrcA<1> == 1): */
-		encmode = S626_ENCMODE_TIMER;
-		/* Set ClkPol to indicate count direction (CntSrcA<0>). */
-		clkpol = cntsrc & 1;
-		/* ClkMult must be 1x in Timer mode. */
-		clkmult = S626_CLKMULT_1X;
-	} else {
-		/* Counter mode (CntSrcA<1> == 0): */
-		encmode = S626_ENCMODE_COUNTER;
-		/* Pass through ClkPol. */
-		clkpol = S626_GET_CRA_CLKPOL_A(cra);
-		/* Force ClkMult to 1x if not legal, else pass through. */
-		clkmult = S626_GET_CRA_CLKMULT_A(cra);
-		if (clkmult == S626_CLKMULT_SPECIAL)
-			clkmult = S626_CLKMULT_1X;
-	}
-	setup |= S626_SET_STD_ENCMODE(encmode) | S626_SET_STD_CLKMULT(clkmult) |
-		 S626_SET_STD_CLKPOL(clkpol);
-
-	/* Return adjusted counter setup. */
-	return setup;
-}
-
-static uint16_t s626_get_mode_b(struct comedi_device *dev,
-				unsigned int chan)
-{
-	uint16_t cra;
-	uint16_t crb;
-	uint16_t setup;
-	unsigned cntsrc, clkmult, clkpol, encmode;
-
-	/* Fetch CRA and CRB register images. */
-	cra = s626_debi_read(dev, S626_LP_CRA(chan));
-	crb = s626_debi_read(dev, S626_LP_CRB(chan));
-
-	/*
-	 * Populate the standardized counter setup bit fields.
-	 */
-	setup =
-		/* IntSrc   = IntSrcB. */
-		S626_SET_STD_INTSRC(S626_GET_CRB_INTSRC_B(crb)) |
-		/* LatchSrc = LatchSrcB. */
-		S626_SET_STD_LATCHSRC(S626_GET_CRB_LATCHSRC(crb)) |
-		/* LoadSrc  = LoadSrcB. */
-		S626_SET_STD_LOADSRC(S626_GET_CRB_LOADSRC_B(crb)) |
-		/* IndxPol  = IndxPolB. */
-		S626_SET_STD_INDXPOL(S626_GET_CRB_INDXPOL_B(crb)) |
-		/* ClkEnab  = ClkEnabB. */
-		S626_SET_STD_CLKENAB(S626_GET_CRB_CLKENAB_B(crb)) |
-		/* IndxSrc  = IndxSrcB. */
-		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_B(cra));
-
-	/* Adjust mode-dependent parameters. */
-	cntsrc = S626_GET_CRA_CNTSRC_B(cra);
-	clkmult = S626_GET_CRB_CLKMULT_B(crb);
-	if (clkmult == S626_CLKMULT_SPECIAL) {
-		/* Extender mode (ClkMultB == S626_CLKMULT_SPECIAL): */
-		encmode = S626_ENCMODE_EXTENDER;
-		/* Indicate multiplier is 1x. */
-		clkmult = S626_CLKMULT_1X;
-		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
-		clkpol = cntsrc & 1;
-	} else if (cntsrc & S626_CNTSRC_SYSCLK) {
-		/* Timer mode (CntSrcB<1> == 1): */
-		encmode = S626_ENCMODE_TIMER;
-		/* Indicate multiplier is 1x. */
-		clkmult = S626_CLKMULT_1X;
-		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
-		clkpol = cntsrc & 1;
-	} else {
-		/* If Counter mode (CntSrcB<1> == 0): */
-		encmode = S626_ENCMODE_COUNTER;
-		/* Clock multiplier is passed through. */
-		/* Clock polarity is passed through. */
-		clkpol = S626_GET_CRB_CLKPOL_B(crb);
-	}
-	setup |= S626_SET_STD_ENCMODE(encmode) | S626_SET_STD_CLKMULT(clkmult) |
-		 S626_SET_STD_CLKPOL(clkpol);
-
-	/* Return adjusted counter setup. */
-	return setup;
-}
-
-static uint16_t s626_get_mode(struct comedi_device *dev,
-			      unsigned int chan)
-{
-	return (chan < 3) ? s626_get_mode_a(dev, chan)
-			  : s626_get_mode_b(dev, chan);
-}
-#endif
-
-/*
- * Set the operating mode for the specified counter.  The setup
- * parameter is treated as a COUNTER_SETUP data type.  The following
- * parameters are programmable (all other parms are ignored): ClkMult,
- * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
- */
-static void s626_set_mode_a(struct comedi_device *dev,
-			    unsigned int chan, uint16_t setup,
-			    uint16_t disable_int_src)
-{
-	struct s626_private *devpriv = dev->private;
-	uint16_t cra;
-	uint16_t crb;
-	unsigned cntsrc, clkmult, clkpol;
-
-	/* Initialize CRA and CRB images. */
-	/* Preload trigger is passed through. */
-	cra = S626_SET_CRA_LOADSRC_A(S626_GET_STD_LOADSRC(setup));
-	/* IndexSrc is passed through. */
-	cra |= S626_SET_CRA_INDXSRC_A(S626_GET_STD_INDXSRC(setup));
-
-	/* Reset any pending CounterA event captures. */
-	crb = S626_SET_CRB_INTRESETCMD(1) | S626_SET_CRB_INTRESET_A(1);
-	/* Clock enable is passed through. */
-	crb |= S626_SET_CRB_CLKENAB_A(S626_GET_STD_CLKENAB(setup));
-
-	/* Force IntSrc to Disabled if disable_int_src is asserted. */
-	if (!disable_int_src)
-		cra |= S626_SET_CRA_INTSRC_A(S626_GET_STD_INTSRC(setup));
-
-	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	clkpol = S626_GET_STD_CLKPOL(setup);
-	switch (S626_GET_STD_ENCMODE(setup)) {
-	case S626_ENCMODE_EXTENDER: /* Extender Mode: */
-		/* Force to Timer mode (Extender valid only for B counters). */
-		/* Fall through to case S626_ENCMODE_TIMER: */
-	case S626_ENCMODE_TIMER:	/* Timer Mode: */
-		/* CntSrcA<1> selects system clock */
-		cntsrc = S626_CNTSRC_SYSCLK;
-		/* Count direction (CntSrcA<0>) obtained from ClkPol. */
-		cntsrc |= clkpol;
-		/* ClkPolA behaves as always-on clock enable. */
-		clkpol = 1;
-		/* ClkMult must be 1x. */
-		clkmult = S626_CLKMULT_1X;
-		break;
-	default:		/* Counter Mode: */
-		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cntsrc = S626_CNTSRC_ENCODER;
-		/* Clock polarity is passed through. */
-		/* Force multiplier to x1 if not legal, else pass through. */
-		clkmult = S626_GET_STD_CLKMULT(setup);
-		if (clkmult == S626_CLKMULT_SPECIAL)
-			clkmult = S626_CLKMULT_1X;
-		break;
-	}
-	cra |= S626_SET_CRA_CNTSRC_A(cntsrc) | S626_SET_CRA_CLKPOL_A(clkpol) |
-	       S626_SET_CRA_CLKMULT_A(clkmult);
-
-	/*
-	 * Force positive index polarity if IndxSrc is software-driven only,
-	 * otherwise pass it through.
-	 */
-	if (S626_GET_STD_INDXSRC(setup) != S626_INDXSRC_SOFT)
-		cra |= S626_SET_CRA_INDXPOL_A(S626_GET_STD_INDXPOL(setup));
-
-	/*
-	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
-	 * enable mask to indicate the counter interrupt is disabled.
-	 */
-	if (disable_int_src)
-		devpriv->counter_int_enabs &= ~(S626_OVERMASK(chan) |
-						S626_INDXMASK(chan));
-
-	/*
-	 * While retaining CounterB and LatchSrc configurations, program the
-	 * new counter operating mode.
-	 */
-	s626_debi_replace(dev, S626_LP_CRA(chan),
-			  S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CNTSRC_B, cra);
-	s626_debi_replace(dev, S626_LP_CRB(chan),
-			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_CLKENAB_A), crb);
-}
-
-static void s626_set_mode_b(struct comedi_device *dev,
-			    unsigned int chan, uint16_t setup,
-			    uint16_t disable_int_src)
-{
-	struct s626_private *devpriv = dev->private;
-	uint16_t cra;
-	uint16_t crb;
-	unsigned cntsrc, clkmult, clkpol;
-
-	/* Initialize CRA and CRB images. */
-	/* IndexSrc is passed through. */
-	cra = S626_SET_CRA_INDXSRC_B(S626_GET_STD_INDXSRC(setup));
-
-	/* Reset event captures and disable interrupts. */
-	crb = S626_SET_CRB_INTRESETCMD(1) | S626_SET_CRB_INTRESET_B(1);
-	/* Clock enable is passed through. */
-	crb |= S626_SET_CRB_CLKENAB_B(S626_GET_STD_CLKENAB(setup));
-	/* Preload trigger source is passed through. */
-	crb |= S626_SET_CRB_LOADSRC_B(S626_GET_STD_LOADSRC(setup));
-
-	/* Force IntSrc to Disabled if disable_int_src is asserted. */
-	if (!disable_int_src)
-		crb |= S626_SET_CRB_INTSRC_B(S626_GET_STD_INTSRC(setup));
-
-	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	clkpol = S626_GET_STD_CLKPOL(setup);
-	switch (S626_GET_STD_ENCMODE(setup)) {
-	case S626_ENCMODE_TIMER:	/* Timer Mode: */
-		/* CntSrcB<1> selects system clock */
-		cntsrc = S626_CNTSRC_SYSCLK;
-		/* with direction (CntSrcB<0>) obtained from ClkPol. */
-		cntsrc |= clkpol;
-		/* ClkPolB behaves as always-on clock enable. */
-		clkpol = 1;
-		/* ClkMultB must be 1x. */
-		clkmult = S626_CLKMULT_1X;
-		break;
-	case S626_ENCMODE_EXTENDER:	/* Extender Mode: */
-		/* CntSrcB source is OverflowA (same as "timer") */
-		cntsrc = S626_CNTSRC_SYSCLK;
-		/* with direction obtained from ClkPol. */
-		cntsrc |= clkpol;
-		/* ClkPolB controls IndexB -- always set to active. */
-		clkpol = 1;
-		/* ClkMultB selects OverflowA as the clock source. */
-		clkmult = S626_CLKMULT_SPECIAL;
-		break;
-	default:		/* Counter Mode: */
-		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cntsrc = S626_CNTSRC_ENCODER;
-		/* ClkPol is passed through. */
-		/* Force ClkMult to x1 if not legal, otherwise pass through. */
-		clkmult = S626_GET_STD_CLKMULT(setup);
-		if (clkmult == S626_CLKMULT_SPECIAL)
-			clkmult = S626_CLKMULT_1X;
-		break;
-	}
-	cra |= S626_SET_CRA_CNTSRC_B(cntsrc);
-	crb |= S626_SET_CRB_CLKPOL_B(clkpol) | S626_SET_CRB_CLKMULT_B(clkmult);
-
-	/*
-	 * Force positive index polarity if IndxSrc is software-driven only,
-	 * otherwise pass it through.
-	 */
-	if (S626_GET_STD_INDXSRC(setup) != S626_INDXSRC_SOFT)
-		crb |= S626_SET_CRB_INDXPOL_B(S626_GET_STD_INDXPOL(setup));
-
-	/*
-	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
-	 * enable mask to indicate the counter interrupt is disabled.
-	 */
-	if (disable_int_src)
-		devpriv->counter_int_enabs &= ~(S626_OVERMASK(chan) |
-						S626_INDXMASK(chan));
-
-	/*
-	 * While retaining CounterA and LatchSrc configurations, program the
-	 * new counter operating mode.
-	 */
-	s626_debi_replace(dev, S626_LP_CRA(chan),
-			  ~(S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CNTSRC_B), cra);
-	s626_debi_replace(dev, S626_LP_CRB(chan),
-			  S626_CRBMSK_CLKENAB_A | S626_CRBMSK_LATCHSRC, crb);
-}
-
-static void s626_set_mode(struct comedi_device *dev,
-			  unsigned int chan,
-			  uint16_t setup, uint16_t disable_int_src)
-{
-	if (chan < 3)
-		s626_set_mode_a(dev, chan, setup, disable_int_src);
-	else
-		s626_set_mode_b(dev, chan, setup, disable_int_src);
-}
-
-/*
- * Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index.
- */
-static void s626_set_enable(struct comedi_device *dev,
-			    unsigned int chan, uint16_t enab)
-{
-	unsigned int mask = S626_CRBMSK_INTCTRL;
-	unsigned int set;
-
-	if (chan < 3) {
-		mask |= S626_CRBMSK_CLKENAB_A;
-		set = S626_SET_CRB_CLKENAB_A(enab);
-	} else {
-		mask |= S626_CRBMSK_CLKENAB_B;
-		set = S626_SET_CRB_CLKENAB_B(enab);
-	}
-	s626_debi_replace(dev, S626_LP_CRB(chan), ~mask, set);
-}
-
-#ifdef unused
-static uint16_t s626_get_enable(struct comedi_device *dev,
-				unsigned int chan)
-{
-	uint16_t crb = s626_debi_read(dev, S626_LP_CRB(chan));
-
-	return (chan < 3) ? S626_GET_CRB_CLKENAB_A(crb)
-			  : S626_GET_CRB_CLKENAB_B(crb);
-}
-#endif
-
-#ifdef unused
-static uint16_t s626_get_latch_source(struct comedi_device *dev,
-				      unsigned int chan)
-{
-	return S626_GET_CRB_LATCHSRC(s626_debi_read(dev, S626_LP_CRB(chan)));
-}
-#endif
-
-/*
- * Return/set the event that will trigger transfer of the preload
- * register into the counter.  0=ThisCntr_Index, 1=ThisCntr_Overflow,
- * 2=OverflowA (B counters only), 3=disabled.
- */
-static void s626_set_load_trig(struct comedi_device *dev,
-			       unsigned int chan, uint16_t trig)
-{
-	uint16_t reg;
-	uint16_t mask;
-	uint16_t set;
-
-	if (chan < 3) {
-		reg = S626_LP_CRA(chan);
-		mask = S626_CRAMSK_LOADSRC_A;
-		set = S626_SET_CRA_LOADSRC_A(trig);
-	} else {
-		reg = S626_LP_CRB(chan);
-		mask = S626_CRBMSK_LOADSRC_B | S626_CRBMSK_INTCTRL;
-		set = S626_SET_CRB_LOADSRC_B(trig);
-	}
-	s626_debi_replace(dev, reg, ~mask, set);
-}
-
-#ifdef unused
-static uint16_t s626_get_load_trig(struct comedi_device *dev,
-				   unsigned int chan)
-{
-	if (chan < 3)
-		return S626_GET_CRA_LOADSRC_A(s626_debi_read(dev,
-							S626_LP_CRA(chan)));
-	else
-		return S626_GET_CRB_LOADSRC_B(s626_debi_read(dev,
-							S626_LP_CRB(chan)));
-}
-#endif
-
-/*
- * Return/set counter interrupt source and clear any captured
- * index/overflow events.  int_source: 0=Disabled, 1=OverflowOnly,
- * 2=IndexOnly, 3=IndexAndOverflow.
- */
-static void s626_set_int_src(struct comedi_device *dev,
-			     unsigned int chan, uint16_t int_source)
-{
-	struct s626_private *devpriv = dev->private;
-	uint16_t cra_reg = S626_LP_CRA(chan);
-	uint16_t crb_reg = S626_LP_CRB(chan);
-
-	if (chan < 3) {
-		/* Reset any pending counter overflow or index captures */
-		s626_debi_replace(dev, crb_reg, ~S626_CRBMSK_INTCTRL,
-				  S626_SET_CRB_INTRESETCMD(1) |
-				  S626_SET_CRB_INTRESET_A(1));
-
-		/* Program counter interrupt source */
-		s626_debi_replace(dev, cra_reg, ~S626_CRAMSK_INTSRC_A,
-				  S626_SET_CRA_INTSRC_A(int_source));
-	} else {
-		uint16_t crb;
-
-		/* Cache writeable CRB register image */
-		crb = s626_debi_read(dev, crb_reg);
-		crb &= ~S626_CRBMSK_INTCTRL;
-
-		/* Reset any pending counter overflow or index captures */
-		s626_debi_write(dev, crb_reg,
-				crb | S626_SET_CRB_INTRESETCMD(1) |
-				S626_SET_CRB_INTRESET_B(1));
-
-		/* Program counter interrupt source */
-		s626_debi_write(dev, crb_reg,
-				(crb & ~S626_CRBMSK_INTSRC_B) |
-				S626_SET_CRB_INTSRC_B(int_source));
-	}
-
-	/* Update MISC2 interrupt enable mask. */
-	devpriv->counter_int_enabs &= ~(S626_OVERMASK(chan) |
-					S626_INDXMASK(chan));
-	switch (int_source) {
-	case 0:
-	default:
-		break;
-	case 1:
-		devpriv->counter_int_enabs |= S626_OVERMASK(chan);
-		break;
-	case 2:
-		devpriv->counter_int_enabs |= S626_INDXMASK(chan);
-		break;
-	case 3:
-		devpriv->counter_int_enabs |= (S626_OVERMASK(chan) |
-					       S626_INDXMASK(chan));
-		break;
-	}
-}
-
-#ifdef unused
-static uint16_t s626_get_int_src(struct comedi_device *dev,
-				 unsigned int chan)
-{
-	if (chan < 3)
-		return S626_GET_CRA_INTSRC_A(s626_debi_read(dev,
-							S626_LP_CRA(chan)));
-	else
-		return S626_GET_CRB_INTSRC_B(s626_debi_read(dev,
-							S626_LP_CRB(chan)));
-}
-#endif
-
-#ifdef unused
-/*
- * Return/set the clock multiplier.
- */
-static void s626_set_clk_mult(struct comedi_device *dev,
-			      unsigned int chan, uint16_t value)
-{
-	uint16_t mode;
-
-	mode = s626_get_mode(dev, chan);
-	mode &= ~S626_STDMSK_CLKMULT;
-	mode |= S626_SET_STD_CLKMULT(value);
-
-	s626_set_mode(dev, chan, mode, false);
-}
-
-static uint16_t s626_get_clk_mult(struct comedi_device *dev,
-				  unsigned int chan)
-{
-	return S626_GET_STD_CLKMULT(s626_get_mode(dev, chan));
-}
-
-/*
- * Return/set the clock polarity.
- */
-static void s626_set_clk_pol(struct comedi_device *dev,
-			     unsigned int chan, uint16_t value)
-{
-	uint16_t mode;
-
-	mode = s626_get_mode(dev, chan);
-	mode &= ~S626_STDMSK_CLKPOL;
-	mode |= S626_SET_STD_CLKPOL(value);
-
-	s626_set_mode(dev, chan, mode, false);
-}
-
-static uint16_t s626_get_clk_pol(struct comedi_device *dev,
-				 unsigned int chan)
-{
-	return S626_GET_STD_CLKPOL(s626_get_mode(dev, chan));
-}
-
-/*
- * Return/set the encoder mode.
- */
-static void s626_set_enc_mode(struct comedi_device *dev,
-			      unsigned int chan, uint16_t value)
-{
-	uint16_t mode;
-
-	mode = s626_get_mode(dev, chan);
-	mode &= ~S626_STDMSK_ENCMODE;
-	mode |= S626_SET_STD_ENCMODE(value);
-
-	s626_set_mode(dev, chan, mode, false);
-}
-
-static uint16_t s626_get_enc_mode(struct comedi_device *dev,
-				  unsigned int chan)
-{
-	return S626_GET_STD_ENCMODE(s626_get_mode(dev, chan));
-}
-
-/*
- * Return/set the index polarity.
- */
-static void s626_set_index_pol(struct comedi_device *dev,
-			       unsigned int chan, uint16_t value)
-{
-	uint16_t mode;
-
-	mode = s626_get_mode(dev, chan);
-	mode &= ~S626_STDMSK_INDXPOL;
-	mode |= S626_SET_STD_INDXPOL(value != 0);
-
-	s626_set_mode(dev, chan, mode, false);
-}
-
-static uint16_t s626_get_index_pol(struct comedi_device *dev,
-				   unsigned int chan)
-{
-	return S626_GET_STD_INDXPOL(s626_get_mode(dev, chan));
-}
-
-/*
- * Return/set the index source.
- */
-static void s626_set_index_src(struct comedi_device *dev,
-			       unsigned int chan, uint16_t value)
-{
-	uint16_t mode;
-
-	mode = s626_get_mode(dev, chan);
-	mode &= ~S626_STDMSK_INDXSRC;
-	mode |= S626_SET_STD_INDXSRC(value != 0);
-
-	s626_set_mode(dev, chan, mode, false);
-}
-
-static uint16_t s626_get_index_src(struct comedi_device *dev,
-				   unsigned int chan)
-{
-	return S626_GET_STD_INDXSRC(s626_get_mode(dev, chan));
-}
-#endif
-
-/*
- * Generate an index pulse.
- */
-static void s626_pulse_index(struct comedi_device *dev,
-			     unsigned int chan)
-{
-	if (chan < 3) {
-		uint16_t cra;
-
-		cra = s626_debi_read(dev, S626_LP_CRA(chan));
-
-		/* Pulse index */
-		s626_debi_write(dev, S626_LP_CRA(chan),
-				(cra ^ S626_CRAMSK_INDXPOL_A));
-		s626_debi_write(dev, S626_LP_CRA(chan), cra);
-	} else {
-		uint16_t crb;
-
-		crb = s626_debi_read(dev, S626_LP_CRB(chan));
-		crb &= ~S626_CRBMSK_INTCTRL;
-
-		/* Pulse index */
-		s626_debi_write(dev, S626_LP_CRB(chan),
-				(crb ^ S626_CRBMSK_INDXPOL_B));
-		s626_debi_write(dev, S626_LP_CRB(chan), crb);
-	}
-}
-
-static unsigned int s626_ai_reg_to_uint(unsigned int data)
-{
-	return ((data >> 18) & 0x3fff) ^ 0x2000;
-}
-
-static int s626_dio_set_irq(struct comedi_device *dev, unsigned int chan)
-{
-	unsigned int group = chan / 16;
-	unsigned int mask = 1 << (chan - (16 * group));
-	unsigned int status;
-
-	/* set channel to capture positive edge */
-	status = s626_debi_read(dev, S626_LP_RDEDGSEL(group));
-	s626_debi_write(dev, S626_LP_WREDGSEL(group), mask | status);
-
-	/* enable interrupt on selected channel */
-	status = s626_debi_read(dev, S626_LP_RDINTSEL(group));
-	s626_debi_write(dev, S626_LP_WRINTSEL(group), mask | status);
-
-	/* enable edge capture write command */
-	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_EDCAP);
-
-	/* enable edge capture on selected channel */
-	status = s626_debi_read(dev, S626_LP_RDCAPSEL(group));
-	s626_debi_write(dev, S626_LP_WRCAPSEL(group), mask | status);
-
-	return 0;
-}
-
-static int s626_dio_reset_irq(struct comedi_device *dev, unsigned int group,
-			      unsigned int mask)
-{
-	/* disable edge capture write command */
-	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_NOEDCAP);
-
-	/* enable edge capture on selected channel */
-	s626_debi_write(dev, S626_LP_WRCAPSEL(group), mask);
-
-	return 0;
-}
-
-static int s626_dio_clear_irq(struct comedi_device *dev)
-{
-	unsigned int group;
-
-	/* disable edge capture write command */
-	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_NOEDCAP);
-
-	/* clear all dio pending events and interrupt */
-	for (group = 0; group < S626_DIO_BANKS; group++)
-		s626_debi_write(dev, S626_LP_WRCAPSEL(group), 0xffff);
-
-	return 0;
-}
-
-static void s626_handle_dio_interrupt(struct comedi_device *dev,
-				      uint16_t irqbit, uint8_t group)
-{
-	struct s626_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	s626_dio_reset_irq(dev, group, irqbit);
-
-	if (devpriv->ai_cmd_running) {
-		/* check if interrupt is an ai acquisition start trigger */
-		if ((irqbit >> (cmd->start_arg - (16 * group))) == 1 &&
-		    cmd->start_src == TRIG_EXT) {
-			/* Start executing the RPS program */
-			s626_mc_enable(dev, S626_MC1_ERPS1, S626_P_MC1);
-
-			if (cmd->scan_begin_src == TRIG_EXT)
-				s626_dio_set_irq(dev, cmd->scan_begin_arg);
-		}
-		if ((irqbit >> (cmd->scan_begin_arg - (16 * group))) == 1 &&
-		    cmd->scan_begin_src == TRIG_EXT) {
-			/* Trigger ADC scan loop start */
-			s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
-
-			if (cmd->convert_src == TRIG_EXT) {
-				devpriv->ai_convert_count = cmd->chanlist_len;
-
-				s626_dio_set_irq(dev, cmd->convert_arg);
-			}
-
-			if (cmd->convert_src == TRIG_TIMER) {
-				devpriv->ai_convert_count = cmd->chanlist_len;
-				s626_set_enable(dev, 5, S626_CLKENAB_ALWAYS);
-			}
-		}
-		if ((irqbit >> (cmd->convert_arg - (16 * group))) == 1 &&
-		    cmd->convert_src == TRIG_EXT) {
-			/* Trigger ADC scan loop start */
-			s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
-
-			devpriv->ai_convert_count--;
-			if (devpriv->ai_convert_count > 0)
-				s626_dio_set_irq(dev, cmd->convert_arg);
-		}
-	}
-}
-
-static void s626_check_dio_interrupts(struct comedi_device *dev)
-{
-	uint16_t irqbit;
-	uint8_t group;
-
-	for (group = 0; group < S626_DIO_BANKS; group++) {
-		/* read interrupt type */
-		irqbit = s626_debi_read(dev, S626_LP_RDCAPFLG(group));
-
-		/* check if interrupt is generated from dio channels */
-		if (irqbit) {
-			s626_handle_dio_interrupt(dev, irqbit, group);
-			return;
-		}
-	}
-}
-
-static void s626_check_counter_interrupts(struct comedi_device *dev)
-{
-	struct s626_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	uint16_t irqbit;
-
-	/* read interrupt type */
-	irqbit = s626_debi_read(dev, S626_LP_RDMISC2);
-
-	/* check interrupt on counters */
-	if (irqbit & S626_IRQ_COINT1A) {
-		/* clear interrupt capture flag */
-		s626_reset_cap_flags(dev, 0);
-	}
-	if (irqbit & S626_IRQ_COINT2A) {
-		/* clear interrupt capture flag */
-		s626_reset_cap_flags(dev, 1);
-	}
-	if (irqbit & S626_IRQ_COINT3A) {
-		/* clear interrupt capture flag */
-		s626_reset_cap_flags(dev, 2);
-	}
-	if (irqbit & S626_IRQ_COINT1B) {
-		/* clear interrupt capture flag */
-		s626_reset_cap_flags(dev, 3);
-	}
-	if (irqbit & S626_IRQ_COINT2B) {
-		/* clear interrupt capture flag */
-		s626_reset_cap_flags(dev, 4);
-
-		if (devpriv->ai_convert_count > 0) {
-			devpriv->ai_convert_count--;
-			if (devpriv->ai_convert_count == 0)
-				s626_set_enable(dev, 4, S626_CLKENAB_INDEX);
-
-			if (cmd->convert_src == TRIG_TIMER) {
-				/* Trigger ADC scan loop start */
-				s626_mc_enable(dev, S626_MC2_ADC_RPS,
-					       S626_P_MC2);
-			}
-		}
-	}
-	if (irqbit & S626_IRQ_COINT3B) {
-		/* clear interrupt capture flag */
-		s626_reset_cap_flags(dev, 5);
-
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			/* Trigger ADC scan loop start */
-			s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
-		}
-
-		if (cmd->convert_src == TRIG_TIMER) {
-			devpriv->ai_convert_count = cmd->chanlist_len;
-			s626_set_enable(dev, 4, S626_CLKENAB_ALWAYS);
-		}
-	}
-}
-
-static bool s626_handle_eos_interrupt(struct comedi_device *dev)
-{
-	struct s626_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	/*
-	 * Init ptr to DMA buffer that holds new ADC data.  We skip the
-	 * first uint16_t in the buffer because it contains junk data
-	 * from the final ADC of the previous poll list scan.
-	 */
-	uint32_t *readaddr = (uint32_t *)devpriv->ana_buf.logical_base + 1;
-	int i;
-
-	/* get the data and hand it over to comedi */
-	for (i = 0; i < cmd->chanlist_len; i++) {
-		unsigned short tempdata;
-
-		/*
-		 * Convert ADC data to 16-bit integer values and copy
-		 * to application buffer.
-		 */
-		tempdata = s626_ai_reg_to_uint(*readaddr);
-		readaddr++;
-
-		comedi_buf_write_samples(s, &tempdata, 1);
-	}
-
-	if (cmd->stop_src == TRIG_COUNT && async->scans_done >= cmd->stop_arg)
-		async->events |= COMEDI_CB_EOA;
-
-	if (async->events & COMEDI_CB_CANCEL_MASK)
-		devpriv->ai_cmd_running = 0;
-
-	if (devpriv->ai_cmd_running && cmd->scan_begin_src == TRIG_EXT)
-		s626_dio_set_irq(dev, cmd->scan_begin_arg);
-
-	comedi_handle_events(dev, s);
-
-	return !devpriv->ai_cmd_running;
-}
-
-static irqreturn_t s626_irq_handler(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	unsigned long flags;
-	uint32_t irqtype, irqstatus;
-
-	if (!dev->attached)
-		return IRQ_NONE;
-	/* lock to avoid race with comedi_poll */
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	/* save interrupt enable register state */
-	irqstatus = readl(dev->mmio + S626_P_IER);
-
-	/* read interrupt type */
-	irqtype = readl(dev->mmio + S626_P_ISR);
-
-	/* disable master interrupt */
-	writel(0, dev->mmio + S626_P_IER);
-
-	/* clear interrupt */
-	writel(irqtype, dev->mmio + S626_P_ISR);
-
-	switch (irqtype) {
-	case S626_IRQ_RPS1:	/* end_of_scan occurs */
-		if (s626_handle_eos_interrupt(dev))
-			irqstatus = 0;
-		break;
-	case S626_IRQ_GPIO3:	/* check dio and counter interrupt */
-		/* s626_dio_clear_irq(dev); */
-		s626_check_dio_interrupts(dev);
-		s626_check_counter_interrupts(dev);
-		break;
-	}
-
-	/* enable interrupt */
-	writel(irqstatus, dev->mmio + S626_P_IER);
-
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-	return IRQ_HANDLED;
-}
-
-/*
- * This function builds the RPS program for hardware driven acquisition.
- */
-static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
-{
-	struct s626_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	uint32_t *rps;
-	uint32_t jmp_adrs;
-	uint16_t i;
-	uint16_t n;
-	uint32_t local_ppl;
-
-	/* Stop RPS program in case it is currently running */
-	s626_mc_disable(dev, S626_MC1_ERPS1, S626_P_MC1);
-
-	/* Set starting logical address to write RPS commands. */
-	rps = (uint32_t *)devpriv->rps_buf.logical_base;
-
-	/* Initialize RPS instruction pointer */
-	writel((uint32_t)devpriv->rps_buf.physical_base,
-	       dev->mmio + S626_P_RPSADDR1);
-
-	/* Construct RPS program in rps_buf DMA buffer */
-	if (cmd->scan_begin_src != TRIG_FOLLOW) {
-		/* Wait for Start trigger. */
-		*rps++ = S626_RPS_PAUSE | S626_RPS_SIGADC;
-		*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_SIGADC;
-	}
-
-	/*
-	 * SAA7146 BUG WORKAROUND Do a dummy DEBI Write.  This is necessary
-	 * because the first RPS DEBI Write following a non-RPS DEBI write
-	 * seems to always fail.  If we don't do this dummy write, the ADC
-	 * gain might not be set to the value required for the first slot in
-	 * the poll list; the ADC gain would instead remain unchanged from
-	 * the previously programmed value.
-	 */
-	/* Write DEBI Write command and address to shadow RAM. */
-	*rps++ = S626_RPS_LDREG | (S626_P_DEBICMD >> 2);
-	*rps++ = S626_DEBI_CMD_WRWORD | S626_LP_GSEL;
-	*rps++ = S626_RPS_LDREG | (S626_P_DEBIAD >> 2);
-	/* Write DEBI immediate data  to shadow RAM: */
-	*rps++ = S626_GSEL_BIPOLAR5V;	/* arbitrary immediate data  value. */
-	*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_DEBI;
-	/* Reset "shadow RAM  uploaded" flag. */
-	/* Invoke shadow RAM upload. */
-	*rps++ = S626_RPS_UPLOAD | S626_RPS_DEBI;
-	/* Wait for shadow upload to finish. */
-	*rps++ = S626_RPS_PAUSE | S626_RPS_DEBI;
-
-	/*
-	 * Digitize all slots in the poll list. This is implemented as a
-	 * for loop to limit the slot count to 16 in case the application
-	 * forgot to set the S626_EOPL flag in the final slot.
-	 */
-	for (devpriv->adc_items = 0; devpriv->adc_items < 16;
-	     devpriv->adc_items++) {
-		/*
-		 * Convert application's poll list item to private board class
-		 * format.  Each app poll list item is an uint8_t with form
-		 * (EOPL,x,x,RANGE,CHAN<3:0>), where RANGE code indicates 0 =
-		 * +-10V, 1 = +-5V, and EOPL = End of Poll List marker.
-		 */
-		local_ppl = (*ppl << 8) | (*ppl & 0x10 ? S626_GSEL_BIPOLAR5V :
-					   S626_GSEL_BIPOLAR10V);
-
-		/* Switch ADC analog gain. */
-		/* Write DEBI command and address to shadow RAM. */
-		*rps++ = S626_RPS_LDREG | (S626_P_DEBICMD >> 2);
-		*rps++ = S626_DEBI_CMD_WRWORD | S626_LP_GSEL;
-		/* Write DEBI immediate data to shadow RAM. */
-		*rps++ = S626_RPS_LDREG | (S626_P_DEBIAD >> 2);
-		*rps++ = local_ppl;
-		/* Reset "shadow RAM uploaded" flag. */
-		*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_DEBI;
-		/* Invoke shadow RAM upload. */
-		*rps++ = S626_RPS_UPLOAD | S626_RPS_DEBI;
-		/* Wait for shadow upload to finish. */
-		*rps++ = S626_RPS_PAUSE | S626_RPS_DEBI;
-		/* Select ADC analog input channel. */
-		*rps++ = S626_RPS_LDREG | (S626_P_DEBICMD >> 2);
-		/* Write DEBI command and address to shadow RAM. */
-		*rps++ = S626_DEBI_CMD_WRWORD | S626_LP_ISEL;
-		*rps++ = S626_RPS_LDREG | (S626_P_DEBIAD >> 2);
-		/* Write DEBI immediate data to shadow RAM. */
-		*rps++ = local_ppl;
-		/* Reset "shadow RAM uploaded" flag. */
-		*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_DEBI;
-		/* Invoke shadow RAM upload. */
-		*rps++ = S626_RPS_UPLOAD | S626_RPS_DEBI;
-		/* Wait for shadow upload to finish. */
-		*rps++ = S626_RPS_PAUSE | S626_RPS_DEBI;
-
-		/*
-		 * Delay at least 10 microseconds for analog input settling.
-		 * Instead of padding with NOPs, we use S626_RPS_JUMP
-		 * instructions here; this allows us to produce a longer delay
-		 * than is possible with NOPs because each S626_RPS_JUMP
-		 * flushes the RPS' instruction prefetch pipeline.
-		 */
-		jmp_adrs =
-			(uint32_t)devpriv->rps_buf.physical_base +
-			(uint32_t)((unsigned long)rps -
-				   (unsigned long)devpriv->
-						  rps_buf.logical_base);
-		for (i = 0; i < (10 * S626_RPSCLK_PER_US / 2); i++) {
-			jmp_adrs += 8;	/* Repeat to implement time delay: */
-			/* Jump to next RPS instruction. */
-			*rps++ = S626_RPS_JUMP;
-			*rps++ = jmp_adrs;
-		}
-
-		if (cmd->convert_src != TRIG_NOW) {
-			/* Wait for Start trigger. */
-			*rps++ = S626_RPS_PAUSE | S626_RPS_SIGADC;
-			*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_SIGADC;
-		}
-		/* Start ADC by pulsing GPIO1. */
-		/* Begin ADC Start pulse. */
-		*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2);
-		*rps++ = S626_GPIO_BASE | S626_GPIO1_LO;
-		*rps++ = S626_RPS_NOP;
-		/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
-		/* End ADC Start pulse. */
-		*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2);
-		*rps++ = S626_GPIO_BASE | S626_GPIO1_HI;
-		/*
-		 * Wait for ADC to complete (GPIO2 is asserted high when ADC not
-		 * busy) and for data from previous conversion to shift into FB
-		 * BUFFER 1 register.
-		 */
-		/* Wait for ADC done. */
-		*rps++ = S626_RPS_PAUSE | S626_RPS_GPIO2;
-
-		/* Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
-		*rps++ = S626_RPS_STREG |
-			 (S626_BUGFIX_STREG(S626_P_FB_BUFFER1) >> 2);
-		*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
-			 (devpriv->adc_items << 2);
-
-		/*
-		 * If this slot's EndOfPollList flag is set, all channels have
-		 * now been processed.
-		 */
-		if (*ppl++ & S626_EOPL) {
-			devpriv->adc_items++; /* Adjust poll list item count. */
-			break;	/* Exit poll list processing loop. */
-		}
-	}
-
-	/*
-	 * VERSION 2.01 CHANGE: DELAY CHANGED FROM 250NS to 2US.  Allow the
-	 * ADC to stabilize for 2 microseconds before starting the final
-	 * (dummy) conversion.  This delay is necessary to allow sufficient
-	 * time between last conversion finished and the start of the dummy
-	 * conversion.  Without this delay, the last conversion's data value
-	 * is sometimes set to the previous conversion's data value.
-	 */
-	for (n = 0; n < (2 * S626_RPSCLK_PER_US); n++)
-		*rps++ = S626_RPS_NOP;
-
-	/*
-	 * Start a dummy conversion to cause the data from the last
-	 * conversion of interest to be shifted in.
-	 */
-	/* Begin ADC Start pulse. */
-	*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2);
-	*rps++ = S626_GPIO_BASE | S626_GPIO1_LO;
-	*rps++ = S626_RPS_NOP;
-	/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
-	*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2); /* End ADC Start pulse. */
-	*rps++ = S626_GPIO_BASE | S626_GPIO1_HI;
-
-	/*
-	 * Wait for the data from the last conversion of interest to arrive
-	 * in FB BUFFER 1 register.
-	 */
-	*rps++ = S626_RPS_PAUSE | S626_RPS_GPIO2;	/* Wait for ADC done. */
-
-	/* Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
-	*rps++ = S626_RPS_STREG | (S626_BUGFIX_STREG(S626_P_FB_BUFFER1) >> 2);
-	*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
-		 (devpriv->adc_items << 2);
-
-	/* Indicate ADC scan loop is finished. */
-	/* Signal ReadADC() that scan is done. */
-	/* *rps++= S626_RPS_CLRSIGNAL | S626_RPS_SIGADC; */
-
-	/* invoke interrupt */
-	if (devpriv->ai_cmd_running == 1)
-		*rps++ = S626_RPS_IRQ;
-
-	/* Restart RPS program at its beginning. */
-	*rps++ = S626_RPS_JUMP;	/* Branch to start of RPS program. */
-	*rps++ = (uint32_t)devpriv->rps_buf.physical_base;
-
-	/* End of RPS program build */
-}
-
-#ifdef unused_code
-static int s626_ai_rinsn(struct comedi_device *dev,
-			 struct comedi_subdevice *s,
-			 struct comedi_insn *insn,
-			 unsigned int *data)
-{
-	struct s626_private *devpriv = dev->private;
-	uint8_t i;
-	int32_t *readaddr;
-
-	/* Trigger ADC scan loop start */
-	s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
-
-	/* Wait until ADC scan loop is finished (RPS Signal 0 reset) */
-	while (s626_mc_test(dev, S626_MC2_ADC_RPS, S626_P_MC2))
-		;
-
-	/*
-	 * Init ptr to DMA buffer that holds new ADC data.  We skip the
-	 * first uint16_t in the buffer because it contains junk data from
-	 * the final ADC of the previous poll list scan.
-	 */
-	readaddr = (uint32_t *)devpriv->ana_buf.logical_base + 1;
-
-	/*
-	 * Convert ADC data to 16-bit integer values and
-	 * copy to application buffer.
-	 */
-	for (i = 0; i < devpriv->adc_items; i++) {
-		*data = s626_ai_reg_to_uint(*readaddr++);
-		data++;
-	}
-
-	return i;
-}
-#endif
-
-static int s626_ai_eoc(struct comedi_device *dev,
-		       struct comedi_subdevice *s,
-		       struct comedi_insn *insn,
-		       unsigned long context)
-{
-	unsigned int status;
-
-	status = readl(dev->mmio + S626_P_PSR);
-	if (status & S626_PSR_GPIO2)
-		return 0;
-	return -EBUSY;
-}
-
-static int s626_ai_insn_read(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned int *data)
-{
-	uint16_t chan = CR_CHAN(insn->chanspec);
-	uint16_t range = CR_RANGE(insn->chanspec);
-	uint16_t adc_spec = 0;
-	uint32_t gpio_image;
-	uint32_t tmp;
-	int ret;
-	int n;
-
-	/*
-	 * Convert application's ADC specification into form
-	 *  appropriate for register programming.
-	 */
-	if (range == 0)
-		adc_spec = (chan << 8) | (S626_GSEL_BIPOLAR5V);
-	else
-		adc_spec = (chan << 8) | (S626_GSEL_BIPOLAR10V);
-
-	/* Switch ADC analog gain. */
-	s626_debi_write(dev, S626_LP_GSEL, adc_spec);	/* Set gain. */
-
-	/* Select ADC analog input channel. */
-	s626_debi_write(dev, S626_LP_ISEL, adc_spec);	/* Select channel. */
-
-	for (n = 0; n < insn->n; n++) {
-		/* Delay 10 microseconds for analog input settling. */
-		udelay(10);
-
-		/* Start ADC by pulsing GPIO1 low */
-		gpio_image = readl(dev->mmio + S626_P_GPIO);
-		/* Assert ADC Start command */
-		writel(gpio_image & ~S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-		/* and stretch it out */
-		writel(gpio_image & ~S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-		writel(gpio_image & ~S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-		/* Negate ADC Start command */
-		writel(gpio_image | S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-
-		/*
-		 * Wait for ADC to complete (GPIO2 is asserted high when
-		 * ADC not busy) and for data from previous conversion to
-		 * shift into FB BUFFER 1 register.
-		 */
-
-		/* Wait for ADC done */
-		ret = comedi_timeout(dev, s, insn, s626_ai_eoc, 0);
-		if (ret)
-			return ret;
-
-		/* Fetch ADC data */
-		if (n != 0) {
-			tmp = readl(dev->mmio + S626_P_FB_BUFFER1);
-			data[n - 1] = s626_ai_reg_to_uint(tmp);
-		}
-
-		/*
-		 * Allow the ADC to stabilize for 4 microseconds before
-		 * starting the next (final) conversion.  This delay is
-		 * necessary to allow sufficient time between last
-		 * conversion finished and the start of the next
-		 * conversion.  Without this delay, the last conversion's
-		 * data value is sometimes set to the previous
-		 * conversion's data value.
-		 */
-		udelay(4);
-	}
-
-	/*
-	 * Start a dummy conversion to cause the data from the
-	 * previous conversion to be shifted in.
-	 */
-	gpio_image = readl(dev->mmio + S626_P_GPIO);
-	/* Assert ADC Start command */
-	writel(gpio_image & ~S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-	/* and stretch it out */
-	writel(gpio_image & ~S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-	writel(gpio_image & ~S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-	/* Negate ADC Start command */
-	writel(gpio_image | S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-
-	/* Wait for the data to arrive in FB BUFFER 1 register. */
-
-	/* Wait for ADC done */
-	ret = comedi_timeout(dev, s, insn, s626_ai_eoc, 0);
-	if (ret)
-		return ret;
-
-	/* Fetch ADC data from audio interface's input shift register. */
-
-	/* Fetch ADC data */
-	if (n != 0) {
-		tmp = readl(dev->mmio + S626_P_FB_BUFFER1);
-		data[n - 1] = s626_ai_reg_to_uint(tmp);
-	}
-
-	return n;
-}
-
-static int s626_ai_load_polllist(uint8_t *ppl, struct comedi_cmd *cmd)
-{
-	int n;
-
-	for (n = 0; n < cmd->chanlist_len; n++) {
-		if (CR_RANGE(cmd->chanlist[n]) == 0)
-			ppl[n] = CR_CHAN(cmd->chanlist[n]) | S626_RANGE_5V;
-		else
-			ppl[n] = CR_CHAN(cmd->chanlist[n]) | S626_RANGE_10V;
-	}
-	if (n != 0)
-		ppl[n - 1] |= S626_EOPL;
-
-	return n;
-}
-
-static int s626_ai_inttrig(struct comedi_device *dev,
-			   struct comedi_subdevice *s,
-			   unsigned int trig_num)
-{
-	struct comedi_cmd *cmd = &s->async->cmd;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	/* Start executing the RPS program */
-	s626_mc_enable(dev, S626_MC1_ERPS1, S626_P_MC1);
-
-	s->async->inttrig = NULL;
-
-	return 1;
-}
-
-/*
- * This function doesn't require a particular form, this is just what
- * happens to be used in some of the drivers.  It should convert ns
- * nanoseconds to a counter value suitable for programming the device.
- * Also, it should adjust ns so that it cooresponds to the actual time
- * that the device will use.
- */
-static int s626_ns_to_timer(unsigned int *nanosec, unsigned int flags)
-{
-	int divider, base;
-
-	base = 500;		/* 2MHz internal clock */
-
-	switch (flags & CMDF_ROUND_MASK) {
-	case CMDF_ROUND_NEAREST:
-	default:
-		divider = DIV_ROUND_CLOSEST(*nanosec, base);
-		break;
-	case CMDF_ROUND_DOWN:
-		divider = (*nanosec) / base;
-		break;
-	case CMDF_ROUND_UP:
-		divider = DIV_ROUND_UP(*nanosec, base);
-		break;
-	}
-
-	*nanosec = base * divider;
-	return divider - 1;
-}
-
-static void s626_timer_load(struct comedi_device *dev,
-			    unsigned int chan, int tick)
-{
-	uint16_t setup =
-		/* Preload upon index. */
-		S626_SET_STD_LOADSRC(S626_LOADSRC_INDX) |
-		/* Disable hardware index. */
-		S626_SET_STD_INDXSRC(S626_INDXSRC_SOFT) |
-		/* Operating mode is Timer. */
-		S626_SET_STD_ENCMODE(S626_ENCMODE_TIMER) |
-		/* Count direction is Down. */
-		S626_SET_STD_CLKPOL(S626_CNTDIR_DOWN) |
-		/* Clock multiplier is 1x. */
-		S626_SET_STD_CLKMULT(S626_CLKMULT_1X) |
-		/* Enabled by index */
-		S626_SET_STD_CLKENAB(S626_CLKENAB_INDEX);
-	uint16_t value_latchsrc = S626_LATCHSRC_A_INDXA;
-	/* uint16_t enab = S626_CLKENAB_ALWAYS; */
-
-	s626_set_mode(dev, chan, setup, false);
-
-	/* Set the preload register */
-	s626_preload(dev, chan, tick);
-
-	/*
-	 * Software index pulse forces the preload register to load
-	 * into the counter
-	 */
-	s626_set_load_trig(dev, chan, 0);
-	s626_pulse_index(dev, chan);
-
-	/* set reload on counter overflow */
-	s626_set_load_trig(dev, chan, 1);
-
-	/* set interrupt on overflow */
-	s626_set_int_src(dev, chan, S626_INTSRC_OVER);
-
-	s626_set_latch_source(dev, chan, value_latchsrc);
-	/* s626_set_enable(dev, chan, (uint16_t)(enab != 0)); */
-}
-
-/* TO COMPLETE  */
-static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct s626_private *devpriv = dev->private;
-	uint8_t ppl[16];
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int tick;
-
-	if (devpriv->ai_cmd_running) {
-		dev_err(dev->class_dev,
-			"s626_ai_cmd: Another ai_cmd is running\n");
-		return -EBUSY;
-	}
-	/* disable interrupt */
-	writel(0, dev->mmio + S626_P_IER);
-
-	/* clear interrupt request */
-	writel(S626_IRQ_RPS1 | S626_IRQ_GPIO3, dev->mmio + S626_P_ISR);
-
-	/* clear any pending interrupt */
-	s626_dio_clear_irq(dev);
-	/* s626_enc_clear_irq(dev); */
-
-	/* reset ai_cmd_running flag */
-	devpriv->ai_cmd_running = 0;
-
-	s626_ai_load_polllist(ppl, cmd);
-	devpriv->ai_cmd_running = 1;
-	devpriv->ai_convert_count = 0;
-
-	switch (cmd->scan_begin_src) {
-	case TRIG_FOLLOW:
-		break;
-	case TRIG_TIMER:
-		/*
-		 * set a counter to generate adc trigger at scan_begin_arg
-		 * interval
-		 */
-		tick = s626_ns_to_timer(&cmd->scan_begin_arg, cmd->flags);
-
-		/* load timer value and enable interrupt */
-		s626_timer_load(dev, 5, tick);
-		s626_set_enable(dev, 5, S626_CLKENAB_ALWAYS);
-		break;
-	case TRIG_EXT:
-		/* set the digital line and interrupt for scan trigger */
-		if (cmd->start_src != TRIG_EXT)
-			s626_dio_set_irq(dev, cmd->scan_begin_arg);
-		break;
-	}
-
-	switch (cmd->convert_src) {
-	case TRIG_NOW:
-		break;
-	case TRIG_TIMER:
-		/*
-		 * set a counter to generate adc trigger at convert_arg
-		 * interval
-		 */
-		tick = s626_ns_to_timer(&cmd->convert_arg, cmd->flags);
-
-		/* load timer value and enable interrupt */
-		s626_timer_load(dev, 4, tick);
-		s626_set_enable(dev, 4, S626_CLKENAB_INDEX);
-		break;
-	case TRIG_EXT:
-		/* set the digital line and interrupt for convert trigger */
-		if (cmd->scan_begin_src != TRIG_EXT &&
-		    cmd->start_src == TRIG_EXT)
-			s626_dio_set_irq(dev, cmd->convert_arg);
-		break;
-	}
-
-	s626_reset_adc(dev, ppl);
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-		/* Trigger ADC scan loop start */
-		/* s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2); */
-
-		/* Start executing the RPS program */
-		s626_mc_enable(dev, S626_MC1_ERPS1, S626_P_MC1);
-		s->async->inttrig = NULL;
-		break;
-	case TRIG_EXT:
-		/* configure DIO channel for acquisition trigger */
-		s626_dio_set_irq(dev, cmd->start_arg);
-		s->async->inttrig = NULL;
-		break;
-	case TRIG_INT:
-		s->async->inttrig = s626_ai_inttrig;
-		break;
-	}
-
-	/* enable interrupt */
-	writel(S626_IRQ_GPIO3 | S626_IRQ_RPS1, dev->mmio + S626_P_IER);
-
-	return 0;
-}
-
-static int s626_ai_cmdtest(struct comedi_device *dev,
-			   struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	int err = 0;
-	unsigned int arg;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src,
-					TRIG_NOW | TRIG_INT | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT | TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	switch (cmd->start_src) {
-	case TRIG_NOW:
-	case TRIG_INT:
-		err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-		break;
-	case TRIG_EXT:
-		err |= comedi_check_trigger_arg_max(&cmd->start_arg, 39);
-		break;
-	}
-
-	if (cmd->scan_begin_src == TRIG_EXT)
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 39);
-	if (cmd->convert_src == TRIG_EXT)
-		err |= comedi_check_trigger_arg_max(&cmd->convert_arg, 39);
-
-#define S626_MAX_SPEED	200000	/* in nanoseconds */
-#define S626_MIN_SPEED	2000000000	/* in nanoseconds */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    S626_MAX_SPEED);
-		err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg,
-						    S626_MIN_SPEED);
-	} else {
-		/*
-		 * external trigger
-		 * should be level/edge, hi/lo specification here
-		 * should specify multiple external triggers
-		 * err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 9);
-		 */
-	}
-	if (cmd->convert_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg,
-						    S626_MAX_SPEED);
-		err |= comedi_check_trigger_arg_max(&cmd->convert_arg,
-						    S626_MIN_SPEED);
-	} else {
-		/*
-		 * external trigger - see above
-		 * err |= comedi_check_trigger_arg_max(&cmd->scan_begin_arg, 9);
-		 */
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		arg = cmd->scan_begin_arg;
-		s626_ns_to_timer(&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
-	}
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		arg = cmd->convert_arg;
-		s626_ns_to_timer(&arg, cmd->flags);
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg);
-
-		if (cmd->scan_begin_src == TRIG_TIMER) {
-			arg = cmd->convert_arg * cmd->scan_end_arg;
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    arg);
-		}
-	}
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int s626_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct s626_private *devpriv = dev->private;
-
-	/* Stop RPS program in case it is currently running */
-	s626_mc_disable(dev, S626_MC1_ERPS1, S626_P_MC1);
-
-	/* disable master interrupt */
-	writel(0, dev->mmio + S626_P_IER);
-
-	devpriv->ai_cmd_running = 0;
-
-	return 0;
-}
-
-static int s626_ao_insn_write(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		int16_t dacdata = (int16_t)data[i];
-		int ret;
-
-		dacdata -= (0x1fff);
-
-		ret = s626_set_dac(dev, chan, dacdata);
-		if (ret)
-			return ret;
-
-		s->readback[chan] = data[i];
-	}
-
-	return insn->n;
-}
-
-/* *************** DIGITAL I/O FUNCTIONS *************** */
-
-/*
- * All DIO functions address a group of DIO channels by means of
- * "group" argument.  group may be 0, 1 or 2, which correspond to DIO
- * ports A, B and C, respectively.
- */
-
-static void s626_dio_init(struct comedi_device *dev)
-{
-	uint16_t group;
-
-	/* Prepare to treat writes to WRCapSel as capture disables. */
-	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_NOEDCAP);
-
-	/* For each group of sixteen channels ... */
-	for (group = 0; group < S626_DIO_BANKS; group++) {
-		/* Disable all interrupts */
-		s626_debi_write(dev, S626_LP_WRINTSEL(group), 0);
-		/* Disable all event captures */
-		s626_debi_write(dev, S626_LP_WRCAPSEL(group), 0xffff);
-		/* Init all DIOs to default edge polarity */
-		s626_debi_write(dev, S626_LP_WREDGSEL(group), 0);
-		/* Program all outputs to inactive state */
-		s626_debi_write(dev, S626_LP_WRDOUT(group), 0);
-	}
-}
-
-static int s626_dio_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned long group = (unsigned long)s->private;
-
-	if (comedi_dio_update_state(s, data))
-		s626_debi_write(dev, S626_LP_WRDOUT(group), s->state);
-
-	data[1] = s626_debi_read(dev, S626_LP_RDDIN(group));
-
-	return insn->n;
-}
-
-static int s626_dio_insn_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	unsigned long group = (unsigned long)s->private;
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	s626_debi_write(dev, S626_LP_WRDOUT(group), s->io_bits);
-
-	return insn->n;
-}
-
-/*
- * Now this function initializes the value of the counter (data[0])
- * and set the subdevice. To complete with trigger and interrupt
- * configuration.
- *
- * FIXME: data[0] is supposed to be an INSN_CONFIG_xxx constant indicating
- * what is being configured, but this function appears to be using data[0]
- * as a variable.
- */
-static int s626_enc_insn_config(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	uint16_t setup =
-		/* Preload upon index. */
-		S626_SET_STD_LOADSRC(S626_LOADSRC_INDX) |
-		/* Disable hardware index. */
-		S626_SET_STD_INDXSRC(S626_INDXSRC_SOFT) |
-		/* Operating mode is Counter. */
-		S626_SET_STD_ENCMODE(S626_ENCMODE_COUNTER) |
-		/* Active high clock. */
-		S626_SET_STD_CLKPOL(S626_CLKPOL_POS) |
-		/* Clock multiplier is 1x. */
-		S626_SET_STD_CLKMULT(S626_CLKMULT_1X) |
-		/* Enabled by index */
-		S626_SET_STD_CLKENAB(S626_CLKENAB_INDEX);
-	/* uint16_t disable_int_src = true; */
-	/* uint32_t Preloadvalue;              //Counter initial value */
-	uint16_t value_latchsrc = S626_LATCHSRC_AB_READ;
-	uint16_t enab = S626_CLKENAB_ALWAYS;
-
-	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
-
-	s626_set_mode(dev, chan, setup, true);
-	s626_preload(dev, chan, data[0]);
-	s626_pulse_index(dev, chan);
-	s626_set_latch_source(dev, chan, value_latchsrc);
-	s626_set_enable(dev, chan, (enab != 0));
-
-	return insn->n;
-}
-
-static int s626_enc_insn_read(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn,
-			      unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	uint16_t cntr_latch_reg = S626_LP_CNTR(chan);
-	int i;
-
-	for (i = 0; i < insn->n; i++) {
-		unsigned int val;
-
-		/*
-		 * Read the counter's output latch LSW/MSW.
-		 * Latches on LSW read.
-		 */
-		val = s626_debi_read(dev, cntr_latch_reg);
-		val |= (s626_debi_read(dev, cntr_latch_reg + 2) << 16);
-		data[i] = val;
-	}
-
-	return insn->n;
-}
-
-static int s626_enc_insn_write(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/* Set the preload register */
-	s626_preload(dev, chan, data[0]);
-
-	/*
-	 * Software index pulse forces the preload register to load
-	 * into the counter
-	 */
-	s626_set_load_trig(dev, chan, 0);
-	s626_pulse_index(dev, chan);
-	s626_set_load_trig(dev, chan, 2);
-
-	return 1;
-}
-
-static void s626_write_misc2(struct comedi_device *dev, uint16_t new_image)
-{
-	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_WENABLE);
-	s626_debi_write(dev, S626_LP_WRMISC2, new_image);
-	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_WDISABLE);
-}
-
-static void s626_counters_init(struct comedi_device *dev)
-{
-	int chan;
-	uint16_t setup =
-		/* Preload upon index. */
-		S626_SET_STD_LOADSRC(S626_LOADSRC_INDX) |
-		/* Disable hardware index. */
-		S626_SET_STD_INDXSRC(S626_INDXSRC_SOFT) |
-		/* Operating mode is counter. */
-		S626_SET_STD_ENCMODE(S626_ENCMODE_COUNTER) |
-		/* Active high clock. */
-		S626_SET_STD_CLKPOL(S626_CLKPOL_POS) |
-		/* Clock multiplier is 1x. */
-		S626_SET_STD_CLKMULT(S626_CLKMULT_1X) |
-		/* Enabled by index */
-		S626_SET_STD_CLKENAB(S626_CLKENAB_INDEX);
-
-	/*
-	 * Disable all counter interrupts and clear any captured counter events.
-	 */
-	for (chan = 0; chan < S626_ENCODER_CHANNELS; chan++) {
-		s626_set_mode(dev, chan, setup, true);
-		s626_set_int_src(dev, chan, 0);
-		s626_reset_cap_flags(dev, chan);
-		s626_set_enable(dev, chan, S626_CLKENAB_ALWAYS);
-	}
-}
-
-static int s626_allocate_dma_buffers(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct s626_private *devpriv = dev->private;
-	void *addr;
-	dma_addr_t appdma;
-
-	addr = pci_alloc_consistent(pcidev, S626_DMABUF_SIZE, &appdma);
-	if (!addr)
-		return -ENOMEM;
-	devpriv->ana_buf.logical_base = addr;
-	devpriv->ana_buf.physical_base = appdma;
-
-	addr = pci_alloc_consistent(pcidev, S626_DMABUF_SIZE, &appdma);
-	if (!addr)
-		return -ENOMEM;
-	devpriv->rps_buf.logical_base = addr;
-	devpriv->rps_buf.physical_base = appdma;
-
-	return 0;
-}
-
-static void s626_free_dma_buffers(struct comedi_device *dev)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct s626_private *devpriv = dev->private;
-
-	if (!devpriv)
-		return;
-
-	if (devpriv->rps_buf.logical_base)
-		pci_free_consistent(pcidev, S626_DMABUF_SIZE,
-				    devpriv->rps_buf.logical_base,
-				    devpriv->rps_buf.physical_base);
-	if (devpriv->ana_buf.logical_base)
-		pci_free_consistent(pcidev, S626_DMABUF_SIZE,
-				    devpriv->ana_buf.logical_base,
-				    devpriv->ana_buf.physical_base);
-}
-
-static int s626_initialize(struct comedi_device *dev)
-{
-	struct s626_private *devpriv = dev->private;
-	dma_addr_t phys_buf;
-	uint16_t chan;
-	int i;
-	int ret;
-
-	/* Enable DEBI and audio pins, enable I2C interface */
-	s626_mc_enable(dev, S626_MC1_DEBI | S626_MC1_AUDIO | S626_MC1_I2C,
-		       S626_P_MC1);
-
-	/*
-	 * Configure DEBI operating mode
-	 *
-	 *  Local bus is 16 bits wide
-	 *  Declare DEBI transfer timeout interval
-	 *  Set up byte lane steering
-	 *  Intel-compatible local bus (DEBI never times out)
-	 */
-	writel(S626_DEBI_CFG_SLAVE16 |
-	       (S626_DEBI_TOUT << S626_DEBI_CFG_TOUT_BIT) | S626_DEBI_SWAP |
-	       S626_DEBI_CFG_INTEL, dev->mmio + S626_P_DEBICFG);
-
-	/* Disable MMU paging */
-	writel(S626_DEBI_PAGE_DISABLE, dev->mmio + S626_P_DEBIPAGE);
-
-	/* Init GPIO so that ADC Start* is negated */
-	writel(S626_GPIO_BASE | S626_GPIO1_HI, dev->mmio + S626_P_GPIO);
-
-	/* I2C device address for onboard eeprom (revb) */
-	devpriv->i2c_adrs = 0xA0;
-
-	/*
-	 * Issue an I2C ABORT command to halt any I2C
-	 * operation in progress and reset BUSY flag.
-	 */
-	writel(S626_I2C_CLKSEL | S626_I2C_ABORT,
-	       dev->mmio + S626_P_I2CSTAT);
-	s626_mc_enable(dev, S626_MC2_UPLD_IIC, S626_P_MC2);
-	ret = comedi_timeout(dev, NULL, NULL, s626_i2c_handshake_eoc, 0);
-	if (ret)
-		return ret;
-
-	/*
-	 * Per SAA7146 data sheet, write to STATUS
-	 * reg twice to reset all  I2C error flags.
-	 */
-	for (i = 0; i < 2; i++) {
-		writel(S626_I2C_CLKSEL, dev->mmio + S626_P_I2CSTAT);
-		s626_mc_enable(dev, S626_MC2_UPLD_IIC, S626_P_MC2);
-		ret = comedi_timeout(dev, NULL, NULL, s626_i2c_handshake_eoc, 0);
-		if (ret)
-			return ret;
-	}
-
-	/*
-	 * Init audio interface functional attributes: set DAC/ADC
-	 * serial clock rates, invert DAC serial clock so that
-	 * DAC data setup times are satisfied, enable DAC serial
-	 * clock out.
-	 */
-	writel(S626_ACON2_INIT, dev->mmio + S626_P_ACON2);
-
-	/*
-	 * Set up TSL1 slot list, which is used to control the
-	 * accumulation of ADC data: S626_RSD1 = shift data in on SD1.
-	 * S626_SIB_A1  = store data uint8_t at next available location
-	 * in FB BUFFER1 register.
-	 */
-	writel(S626_RSD1 | S626_SIB_A1, dev->mmio + S626_P_TSL1);
-	writel(S626_RSD1 | S626_SIB_A1 | S626_EOS,
-	       dev->mmio + S626_P_TSL1 + 4);
-
-	/* Enable TSL1 slot list so that it executes all the time */
-	writel(S626_ACON1_ADCSTART, dev->mmio + S626_P_ACON1);
-
-	/*
-	 * Initialize RPS registers used for ADC
-	 */
-
-	/* Physical start of RPS program */
-	writel((uint32_t)devpriv->rps_buf.physical_base,
-	       dev->mmio + S626_P_RPSADDR1);
-	/* RPS program performs no explicit mem writes */
-	writel(0, dev->mmio + S626_P_RPSPAGE1);
-	/* Disable RPS timeouts */
-	writel(0, dev->mmio + S626_P_RPS1_TOUT);
-
-#if 0
-	/*
-	 * SAA7146 BUG WORKAROUND
-	 *
-	 * Initialize SAA7146 ADC interface to a known state by
-	 * invoking ADCs until FB BUFFER 1 register shows that it
-	 * is correctly receiving ADC data. This is necessary
-	 * because the SAA7146 ADC interface does not start up in
-	 * a defined state after a PCI reset.
-	 */
-	{
-		struct comedi_subdevice *s = dev->read_subdev;
-		uint8_t poll_list;
-		uint16_t adc_data;
-		uint16_t start_val;
-		uint16_t index;
-		unsigned int data[16];
-
-		/* Create a simple polling list for analog input channel 0 */
-		poll_list = S626_EOPL;
-		s626_reset_adc(dev, &poll_list);
-
-		/* Get initial ADC value */
-		s626_ai_rinsn(dev, s, NULL, data);
-		start_val = data[0];
-
-		/*
-		 * VERSION 2.01 CHANGE: TIMEOUT ADDED TO PREVENT HANGED
-		 * EXECUTION.
-		 *
-		 * Invoke ADCs until the new ADC value differs from the initial
-		 * value or a timeout occurs.  The timeout protects against the
-		 * possibility that the driver is restarting and the ADC data is
-		 * a fixed value resulting from the applied ADC analog input
-		 * being unusually quiet or at the rail.
-		 */
-		for (index = 0; index < 500; index++) {
-			s626_ai_rinsn(dev, s, NULL, data);
-			adc_data = data[0];
-			if (adc_data != start_val)
-				break;
-		}
-	}
-#endif	/* SAA7146 BUG WORKAROUND */
-
-	/*
-	 * Initialize the DAC interface
-	 */
-
-	/*
-	 * Init Audio2's output DMAC attributes:
-	 *   burst length = 1 DWORD
-	 *   threshold = 1 DWORD.
-	 */
-	writel(0, dev->mmio + S626_P_PCI_BT_A);
-
-	/*
-	 * Init Audio2's output DMA physical addresses.  The protection
-	 * address is set to 1 DWORD past the base address so that a
-	 * single DWORD will be transferred each time a DMA transfer is
-	 * enabled.
-	 */
-	phys_buf = devpriv->ana_buf.physical_base +
-		   (S626_DAC_WDMABUF_OS * sizeof(uint32_t));
-	writel((uint32_t)phys_buf, dev->mmio + S626_P_BASEA2_OUT);
-	writel((uint32_t)(phys_buf + sizeof(uint32_t)),
-	       dev->mmio + S626_P_PROTA2_OUT);
-
-	/*
-	 * Cache Audio2's output DMA buffer logical address.  This is
-	 * where DAC data is buffered for A2 output DMA transfers.
-	 */
-	devpriv->dac_wbuf = (uint32_t *)devpriv->ana_buf.logical_base +
-			    S626_DAC_WDMABUF_OS;
-
-	/*
-	 * Audio2's output channels does not use paging.  The
-	 * protection violation handling bit is set so that the
-	 * DMAC will automatically halt and its PCI address pointer
-	 * will be reset when the protection address is reached.
-	 */
-	writel(8, dev->mmio + S626_P_PAGEA2_OUT);
-
-	/*
-	 * Initialize time slot list 2 (TSL2), which is used to control
-	 * the clock generation for and serialization of data to be sent
-	 * to the DAC devices.  Slot 0 is a NOP that is used to trap TSL
-	 * execution; this permits other slots to be safely modified
-	 * without first turning off the TSL sequencer (which is
-	 * apparently impossible to do).  Also, SD3 (which is driven by a
-	 * pull-up resistor) is shifted in and stored to the MSB of
-	 * FB_BUFFER2 to be used as evidence that the slot sequence has
-	 * not yet finished executing.
-	 */
-
-	/* Slot 0: Trap TSL execution, shift 0xFF into FB_BUFFER2 */
-	writel(S626_XSD2 | S626_RSD3 | S626_SIB_A2 | S626_EOS,
-	       dev->mmio + S626_VECTPORT(0));
-
-	/*
-	 * Initialize slot 1, which is constant.  Slot 1 causes a
-	 * DWORD to be transferred from audio channel 2's output FIFO
-	 * to the FIFO's output buffer so that it can be serialized
-	 * and sent to the DAC during subsequent slots.  All remaining
-	 * slots are dynamically populated as required by the target
-	 * DAC device.
-	 */
-
-	/* Slot 1: Fetch DWORD from Audio2's output FIFO */
-	writel(S626_LF_A2, dev->mmio + S626_VECTPORT(1));
-
-	/* Start DAC's audio interface (TSL2) running */
-	writel(S626_ACON1_DACSTART, dev->mmio + S626_P_ACON1);
-
-	/*
-	 * Init Trim DACs to calibrated values.  Do it twice because the
-	 * SAA7146 audio channel does not always reset properly and
-	 * sometimes causes the first few TrimDAC writes to malfunction.
-	 */
-	s626_load_trim_dacs(dev);
-	ret = s626_load_trim_dacs(dev);
-	if (ret)
-		return ret;
-
-	/*
-	 * Manually init all gate array hardware in case this is a soft
-	 * reset (we have no way of determining whether this is a warm
-	 * or cold start).  This is necessary because the gate array will
-	 * reset only in response to a PCI hard reset; there is no soft
-	 * reset function.
-	 */
-
-	/*
-	 * Init all DAC outputs to 0V and init all DAC setpoint and
-	 * polarity images.
-	 */
-	for (chan = 0; chan < S626_DAC_CHANNELS; chan++) {
-		ret = s626_set_dac(dev, chan, 0);
-		if (ret)
-			return ret;
-	}
-
-	/* Init counters */
-	s626_counters_init(dev);
-
-	/*
-	 * Without modifying the state of the Battery Backup enab, disable
-	 * the watchdog timer, set DIO channels 0-5 to operate in the
-	 * standard DIO (vs. counter overflow) mode, disable the battery
-	 * charger, and reset the watchdog interval selector to zero.
-	 */
-	s626_write_misc2(dev, (s626_debi_read(dev, S626_LP_RDMISC2) &
-			       S626_MISC2_BATT_ENABLE));
-
-	/* Initialize the digital I/O subsystem */
-	s626_dio_init(dev);
-
-	return 0;
-}
-
-static int s626_auto_attach(struct comedi_device *dev,
-			    unsigned long context_unused)
-{
-	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct s626_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
-	dev->mmio = pci_ioremap_bar(pcidev, 0);
-	if (!dev->mmio)
-		return -ENOMEM;
-
-	/* disable master interrupt */
-	writel(0, dev->mmio + S626_P_IER);
-
-	/* soft reset */
-	writel(S626_MC1_SOFT_RESET, dev->mmio + S626_P_MC1);
-
-	/* DMA FIXME DMA// */
-
-	ret = s626_allocate_dma_buffers(dev);
-	if (ret)
-		return ret;
-
-	if (pcidev->irq) {
-		ret = request_irq(pcidev->irq, s626_irq_handler, IRQF_SHARED,
-				  dev->board_name, dev);
-
-		if (ret == 0)
-			dev->irq = pcidev->irq;
-	}
-
-	ret = comedi_alloc_subdevices(dev, 6);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* analog input subdevice */
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_DIFF;
-	s->n_chan	= S626_ADC_CHANNELS;
-	s->maxdata	= 0x3fff;
-	s->range_table	= &s626_range_table;
-	s->len_chanlist	= S626_ADC_CHANNELS;
-	s->insn_read	= s626_ai_insn_read;
-	if (dev->irq) {
-		dev->read_subdev = s;
-		s->subdev_flags	|= SDF_CMD_READ;
-		s->do_cmd	= s626_ai_cmd;
-		s->do_cmdtest	= s626_ai_cmdtest;
-		s->cancel	= s626_ai_cancel;
-	}
-
-	s = &dev->subdevices[1];
-	/* analog output subdevice */
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= S626_DAC_CHANNELS;
-	s->maxdata	= 0x3fff;
-	s->range_table	= &range_bipolar10;
-	s->insn_write	= s626_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[2];
-	/* digital I/O subdevice */
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->io_bits	= 0xffff;
-	s->private	= (void *)0;	/* DIO group 0 */
-	s->range_table	= &range_digital;
-	s->insn_config	= s626_dio_insn_config;
-	s->insn_bits	= s626_dio_insn_bits;
-
-	s = &dev->subdevices[3];
-	/* digital I/O subdevice */
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->io_bits	= 0xffff;
-	s->private	= (void *)1;	/* DIO group 1 */
-	s->range_table	= &range_digital;
-	s->insn_config	= s626_dio_insn_config;
-	s->insn_bits	= s626_dio_insn_bits;
-
-	s = &dev->subdevices[4];
-	/* digital I/O subdevice */
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= 16;
-	s->maxdata	= 1;
-	s->io_bits	= 0xffff;
-	s->private	= (void *)2;	/* DIO group 2 */
-	s->range_table	= &range_digital;
-	s->insn_config	= s626_dio_insn_config;
-	s->insn_bits	= s626_dio_insn_bits;
-
-	s = &dev->subdevices[5];
-	/* encoder (counter) subdevice */
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE | SDF_LSAMPL;
-	s->n_chan	= S626_ENCODER_CHANNELS;
-	s->maxdata	= 0xffffff;
-	s->range_table	= &range_unknown;
-	s->insn_config	= s626_enc_insn_config;
-	s->insn_read	= s626_enc_insn_read;
-	s->insn_write	= s626_enc_insn_write;
-
-	return s626_initialize(dev);
-}
-
-static void s626_detach(struct comedi_device *dev)
-{
-	struct s626_private *devpriv = dev->private;
-
-	if (devpriv) {
-		/* stop ai_command */
-		devpriv->ai_cmd_running = 0;
-
-		if (dev->mmio) {
-			/* interrupt mask */
-			/* Disable master interrupt */
-			writel(0, dev->mmio + S626_P_IER);
-			/* Clear board's IRQ status flag */
-			writel(S626_IRQ_GPIO3 | S626_IRQ_RPS1,
-			       dev->mmio + S626_P_ISR);
-
-			/* Disable the watchdog timer and battery charger. */
-			s626_write_misc2(dev, 0);
-
-			/* Close all interfaces on 7146 device */
-			writel(S626_MC1_SHUTDOWN, dev->mmio + S626_P_MC1);
-			writel(S626_ACON1_BASE, dev->mmio + S626_P_ACON1);
-		}
-	}
-	comedi_pci_detach(dev);
-	s626_free_dma_buffers(dev);
-}
-
-static struct comedi_driver s626_driver = {
-	.driver_name	= "s626",
-	.module		= THIS_MODULE,
-	.auto_attach	= s626_auto_attach,
-	.detach		= s626_detach,
-};
-
-static int s626_pci_probe(struct pci_dev *dev,
-			  const struct pci_device_id *id)
-{
-	return comedi_pci_auto_config(dev, &s626_driver, id->driver_data);
-}
-
-/*
- * For devices with vendor:device id == 0x1131:0x7146 you must specify
- * also subvendor:subdevice ids, because otherwise it will conflict with
- * Philips SAA7146 media/dvb based cards.
- */
-static const struct pci_device_id s626_pci_table[] = {
-	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146,
-			 0x6000, 0x0272) },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, s626_pci_table);
-
-static struct pci_driver s626_pci_driver = {
-	.name		= "s626",
-	.id_table	= s626_pci_table,
-	.probe		= s626_pci_probe,
-	.remove		= comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(s626_driver, s626_pci_driver);
-
-MODULE_AUTHOR("Gianluca Palli <gpalli@deis.unibo.it>");
-MODULE_DESCRIPTION("Sensoray 626 Comedi driver module");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
deleted file mode 100644
index b83424e7507b..000000000000
--- a/drivers/staging/comedi/drivers/s626.h
+++ /dev/null
@@ -1,760 +0,0 @@
-/*
- * comedi/drivers/s626.h
- * Sensoray s626 Comedi driver, header file
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
- *
- * Based on Sensoray Model 626 Linux driver Version 0.2
- * Copyright (C) 2002-2004 Sensoray Co., Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef S626_H_INCLUDED
-#define S626_H_INCLUDED
-
-#define S626_DMABUF_SIZE	4096	/* 4k pages */
-
-#define S626_ADC_CHANNELS       16
-#define S626_DAC_CHANNELS       4
-#define S626_ENCODER_CHANNELS   6
-#define S626_DIO_CHANNELS       48
-#define S626_DIO_BANKS		3	/* Number of DIO groups. */
-#define S626_DIO_EXTCHANS	40	/* Number of extended-capability
-					 * DIO channels. */
-
-#define S626_NUM_TRIMDACS	12	/* Number of valid TrimDAC channels. */
-
-/* PCI bus interface types. */
-#define S626_INTEL		1	/* Intel bus type. */
-#define S626_MOTOROLA		2	/* Motorola bus type. */
-
-#define S626_PLATFORM		S626_INTEL /* *** SELECT PLATFORM TYPE *** */
-
-#define S626_RANGE_5V		0x10	/* +/-5V range */
-#define S626_RANGE_10V		0x00	/* +/-10V range */
-
-#define S626_EOPL		0x80	/* End of ADC poll list marker. */
-#define S626_GSEL_BIPOLAR5V	0x00F0	/* S626_LP_GSEL setting 5V bipolar. */
-#define S626_GSEL_BIPOLAR10V	0x00A0	/* S626_LP_GSEL setting 10V bipolar. */
-
-/* Error codes that must be visible to this base class. */
-#define S626_ERR_ILLEGAL_PARM	0x00010000	/* Illegal function parameter
-						 * value was specified. */
-#define S626_ERR_I2C		0x00020000	/* I2C error. */
-#define S626_ERR_COUNTERSETUP	0x00200000	/* Illegal setup specified for
-						 * counter channel. */
-#define S626_ERR_DEBI_TIMEOUT	0x00400000	/* DEBI transfer timed out. */
-
-/*
- * Organization (physical order) and size (in DWORDs) of logical DMA buffers
- * contained by ANA_DMABUF.
- */
-#define S626_ADC_DMABUF_DWORDS	40	/* ADC DMA buffer must hold 16 samples,
-					 * plus pre/post garbage samples. */
-#define S626_DAC_WDMABUF_DWORDS	1	/* DAC output DMA buffer holds a single
-					 * sample. */
-
-/* All remaining space in 4KB DMA buffer is available for the RPS1 program. */
-
-/* Address offsets, in DWORDS, from base of DMA buffer. */
-#define S626_DAC_WDMABUF_OS	S626_ADC_DMABUF_DWORDS
-
-/*  Interrupt enable bit in ISR and IER. */
-#define S626_IRQ_GPIO3		0x00000040	/* IRQ enable for GPIO3. */
-#define S626_IRQ_RPS1		0x10000000
-#define S626_ISR_AFOU		0x00000800
-/* Audio fifo under/overflow  detected. */
-
-#define S626_IRQ_COINT1A	0x0400	/* counter 1A overflow interrupt mask */
-#define S626_IRQ_COINT1B	0x0800	/* counter 1B overflow interrupt mask */
-#define S626_IRQ_COINT2A	0x1000	/* counter 2A overflow interrupt mask */
-#define S626_IRQ_COINT2B	0x2000	/* counter 2B overflow interrupt mask */
-#define S626_IRQ_COINT3A	0x4000	/* counter 3A overflow interrupt mask */
-#define S626_IRQ_COINT3B	0x8000	/* counter 3B overflow interrupt mask */
-
-/* RPS command codes. */
-#define S626_RPS_CLRSIGNAL	0x00000000	/* CLEAR SIGNAL */
-#define S626_RPS_SETSIGNAL	0x10000000	/* SET SIGNAL */
-#define S626_RPS_NOP		0x00000000	/* NOP */
-#define S626_RPS_PAUSE		0x20000000	/* PAUSE */
-#define S626_RPS_UPLOAD		0x40000000	/* UPLOAD */
-#define S626_RPS_JUMP		0x80000000	/* JUMP */
-#define S626_RPS_LDREG		0x90000100	/* LDREG (1 uint32_t only) */
-#define S626_RPS_STREG		0xA0000100	/* STREG (1 uint32_t only) */
-#define S626_RPS_STOP		0x50000000	/* STOP */
-#define S626_RPS_IRQ		0x60000000	/* IRQ */
-
-#define S626_RPS_LOGICAL_OR	0x08000000	/* Logical OR conditionals. */
-#define S626_RPS_INVERT		0x04000000	/* Test for negated
-						 * semaphores. */
-#define S626_RPS_DEBI		0x00000002	/* DEBI done */
-
-#define S626_RPS_SIG0		0x00200000	/* RPS semaphore 0
-						 * (used by ADC). */
-#define S626_RPS_SIG1		0x00400000	/* RPS semaphore 1
-						 * (used by DAC). */
-#define S626_RPS_SIG2		0x00800000	/* RPS semaphore 2
-						 * (not used). */
-#define S626_RPS_GPIO2		0x00080000	/* RPS GPIO2 */
-#define S626_RPS_GPIO3		0x00100000	/* RPS GPIO3 */
-
-#define S626_RPS_SIGADC		S626_RPS_SIG0	/* Trigger/status for
-						 * ADC's RPS program. */
-#define S626_RPS_SIGDAC		S626_RPS_SIG1	/* Trigger/status for
-						 * DAC's RPS program. */
-
-/* RPS clock parameters. */
-#define S626_RPSCLK_SCALAR	8	/* This is apparent ratio of
-					 * PCI/RPS clks (undocumented!!). */
-#define S626_RPSCLK_PER_US	(33 / S626_RPSCLK_SCALAR)
-					/* Number of RPS clocks in one
-					 * microsecond. */
-
-/* Event counter source addresses. */
-#define S626_SBA_RPS_A0		0x27	/* Time of RPS0 busy, in PCI clocks. */
-
-/* GPIO constants. */
-#define S626_GPIO_BASE		0x10004000	/* GPIO 0,2,3 = inputs,
-						 * GPIO3 = IRQ; GPIO1 = out. */
-#define S626_GPIO1_LO		0x00000000	/* GPIO1 set to LOW. */
-#define S626_GPIO1_HI		0x00001000	/* GPIO1 set to HIGH. */
-
-/* Primary Status Register (PSR) constants. */
-#define S626_PSR_DEBI_E		0x00040000	/* DEBI event flag. */
-#define S626_PSR_DEBI_S		0x00080000	/* DEBI status flag. */
-#define S626_PSR_A2_IN		0x00008000	/* Audio output DMA2 protection
-						 * address reached. */
-#define S626_PSR_AFOU		0x00000800	/* Audio FIFO under/overflow
-						 * detected. */
-#define S626_PSR_GPIO2		0x00000020	/* GPIO2 input pin: 0=AdcBusy,
-						 * 1=AdcIdle. */
-#define S626_PSR_EC0S		0x00000001	/* Event counter 0 threshold
-						 * reached. */
-
-/* Secondary Status Register (SSR) constants. */
-#define S626_SSR_AF2_OUT	0x00000200	/* Audio 2 output FIFO
-						 * under/overflow detected. */
-
-/* Master Control Register 1 (MC1) constants. */
-#define S626_MC1_SOFT_RESET	0x80000000	/* Invoke 7146 soft reset. */
-#define S626_MC1_SHUTDOWN	0x3FFF0000	/* Shut down all MC1-controlled
-						 * enables. */
-
-#define S626_MC1_ERPS1		0x2000	/* Enab/disable RPS task 1. */
-#define S626_MC1_ERPS0		0x1000	/* Enab/disable RPS task 0. */
-#define S626_MC1_DEBI		0x0800	/* Enab/disable DEBI pins. */
-#define S626_MC1_AUDIO		0x0200	/* Enab/disable audio port pins. */
-#define S626_MC1_I2C		0x0100	/* Enab/disable I2C interface. */
-#define S626_MC1_A2OUT		0x0008	/* Enab/disable transfer on A2 out. */
-#define S626_MC1_A2IN		0x0004	/* Enab/disable transfer on A2 in. */
-#define S626_MC1_A1IN		0x0001	/* Enab/disable transfer on A1 in. */
-
-/* Master Control Register 2 (MC2) constants. */
-#define S626_MC2_UPLD_DEBI	0x0002	/* Upload DEBI. */
-#define S626_MC2_UPLD_IIC	0x0001	/* Upload I2C. */
-#define S626_MC2_RPSSIG2	0x2000	/* RPS signal 2 (not used). */
-#define S626_MC2_RPSSIG1	0x1000	/* RPS signal 1 (DAC RPS busy). */
-#define S626_MC2_RPSSIG0	0x0800	/* RPS signal 0 (ADC RPS busy). */
-
-#define S626_MC2_ADC_RPS	S626_MC2_RPSSIG0	/* ADC RPS busy. */
-#define S626_MC2_DAC_RPS	S626_MC2_RPSSIG1	/* DAC RPS busy. */
-
-/* PCI BUS (SAA7146) REGISTER ADDRESS OFFSETS */
-#define S626_P_PCI_BT_A		0x004C	/* Audio DMA burst/threshold control. */
-#define S626_P_DEBICFG		0x007C	/* DEBI configuration. */
-#define S626_P_DEBICMD		0x0080	/* DEBI command. */
-#define S626_P_DEBIPAGE		0x0084	/* DEBI page. */
-#define S626_P_DEBIAD		0x0088	/* DEBI target address. */
-#define S626_P_I2CCTRL		0x008C	/* I2C control. */
-#define S626_P_I2CSTAT		0x0090	/* I2C status. */
-#define S626_P_BASEA2_IN	0x00AC	/* Audio input 2 base physical DMAbuf
-					 * address. */
-#define S626_P_PROTA2_IN	0x00B0	/* Audio input 2 physical DMAbuf
-					 * protection address. */
-#define S626_P_PAGEA2_IN	0x00B4	/* Audio input 2 paging attributes. */
-#define S626_P_BASEA2_OUT	0x00B8	/* Audio output 2 base physical DMAbuf
-					 * address. */
-#define S626_P_PROTA2_OUT	0x00BC	/* Audio output 2 physical DMAbuf
-					 * protection address. */
-#define S626_P_PAGEA2_OUT	0x00C0	/* Audio output 2 paging attributes. */
-#define S626_P_RPSPAGE0		0x00C4	/* RPS0 page. */
-#define S626_P_RPSPAGE1		0x00C8	/* RPS1 page. */
-#define S626_P_RPS0_TOUT	0x00D4	/* RPS0 time-out. */
-#define S626_P_RPS1_TOUT	0x00D8	/* RPS1 time-out. */
-#define S626_P_IER		0x00DC	/* Interrupt enable. */
-#define S626_P_GPIO		0x00E0	/* General-purpose I/O. */
-#define S626_P_EC1SSR		0x00E4	/* Event counter set 1 source select. */
-#define S626_P_ECT1R		0x00EC	/* Event counter threshold set 1. */
-#define S626_P_ACON1		0x00F4	/* Audio control 1. */
-#define S626_P_ACON2		0x00F8	/* Audio control 2. */
-#define S626_P_MC1		0x00FC	/* Master control 1. */
-#define S626_P_MC2		0x0100	/* Master control 2. */
-#define S626_P_RPSADDR0		0x0104	/* RPS0 instruction pointer. */
-#define S626_P_RPSADDR1		0x0108	/* RPS1 instruction pointer. */
-#define S626_P_ISR		0x010C	/* Interrupt status. */
-#define S626_P_PSR		0x0110	/* Primary status. */
-#define S626_P_SSR		0x0114	/* Secondary status. */
-#define S626_P_EC1R		0x0118	/* Event counter set 1. */
-#define S626_P_ADP4		0x0138	/* Logical audio DMA pointer of audio
-					 * input FIFO A2_IN. */
-#define S626_P_FB_BUFFER1	0x0144	/* Audio feedback buffer 1. */
-#define S626_P_FB_BUFFER2	0x0148	/* Audio feedback buffer 2. */
-#define S626_P_TSL1		0x0180	/* Audio time slot list 1. */
-#define S626_P_TSL2		0x01C0	/* Audio time slot list 2. */
-
-/* LOCAL BUS (GATE ARRAY) REGISTER ADDRESS OFFSETS */
-/* Analog I/O registers: */
-#define S626_LP_DACPOL		0x0082	/* Write DAC polarity. */
-#define S626_LP_GSEL		0x0084	/* Write ADC gain. */
-#define S626_LP_ISEL		0x0086	/* Write ADC channel select. */
-
-/* Digital I/O registers */
-#define S626_LP_RDDIN(x)	(0x0040 + (x) * 0x10)	/* R: digital input */
-#define S626_LP_WRINTSEL(x)	(0x0042 + (x) * 0x10)	/* W: int enable */
-#define S626_LP_WREDGSEL(x)	(0x0044 + (x) * 0x10)	/* W: edge selection */
-#define S626_LP_WRCAPSEL(x)	(0x0046 + (x) * 0x10)	/* W: capture enable */
-#define S626_LP_RDCAPFLG(x)	(0x0048 + (x) * 0x10)	/* R: edges captured */
-#define S626_LP_WRDOUT(x)	(0x0048 + (x) * 0x10)	/* W: digital output */
-#define S626_LP_RDINTSEL(x)	(0x004a + (x) * 0x10)	/* R: int enable */
-#define S626_LP_RDEDGSEL(x)	(0x004c + (x) * 0x10)	/* R: edge selection */
-#define S626_LP_RDCAPSEL(x)	(0x004e + (x) * 0x10)	/* R: capture enable */
-
-/* Counter registers (read/write): 0A 1A 2A 0B 1B 2B */
-#define S626_LP_CRA(x)		(0x0000 + (((x) % 3) * 0x4))
-#define S626_LP_CRB(x)		(0x0002 + (((x) % 3) * 0x4))
-
-/* Counter PreLoad (write) and Latch (read) Registers: 0A 1A 2A 0B 1B 2B */
-#define S626_LP_CNTR(x)		(0x000c  + (((x) < 3) ? 0x0 : 0x4) + \
-					   (((x) % 3) * 0x8))
-
-/* Miscellaneous Registers (read/write): */
-#define S626_LP_MISC1		0x0088	/* Read/write Misc1. */
-#define S626_LP_WRMISC2		0x0090	/* Write Misc2. */
-#define S626_LP_RDMISC2		0x0082	/* Read Misc2. */
-
-/* Bit masks for MISC1 register that are the same for reads and writes. */
-#define S626_MISC1_WENABLE	0x8000	/* enab writes to MISC2 (except Clear
-					 * Watchdog bit). */
-#define S626_MISC1_WDISABLE	0x0000	/* Disable writes to MISC2. */
-#define S626_MISC1_EDCAP	0x1000	/* Enable edge capture on DIO chans
-					 * specified by S626_LP_WRCAPSELx. */
-#define S626_MISC1_NOEDCAP	0x0000	/* Disable edge capture on specified
-					 * DIO chans. */
-
-/* Bit masks for MISC1 register reads. */
-#define S626_RDMISC1_WDTIMEOUT	0x4000	/* Watchdog timer timed out. */
-
-/* Bit masks for MISC2 register writes. */
-#define S626_WRMISC2_WDCLEAR	0x8000	/* Reset watchdog timer to zero. */
-#define S626_WRMISC2_CHARGE_ENABLE 0x4000 /* Enable battery trickle charging. */
-
-/* Bit masks for MISC2 register that are the same for reads and writes. */
-#define S626_MISC2_BATT_ENABLE	0x0008	/* Backup battery enable. */
-#define S626_MISC2_WDENABLE	0x0004	/* Watchdog timer enable. */
-#define S626_MISC2_WDPERIOD_MASK 0x0003	/* Watchdog interval select mask. */
-
-/* Bit masks for ACON1 register. */
-#define S626_A2_RUN		0x40000000	/* Run A2 based on TSL2. */
-#define S626_A1_RUN		0x20000000	/* Run A1 based on TSL1. */
-#define S626_A1_SWAP		0x00200000	/* Use big-endian for A1. */
-#define S626_A2_SWAP		0x00100000	/* Use big-endian for A2. */
-#define S626_WS_MODES		0x00019999	/* WS0 = TSL1 trigger input,
-						 * WS1-WS4 = CS* outputs. */
-
-#if S626_PLATFORM == S626_INTEL		/* Base ACON1 config: always run
-					 * A1 based on TSL1. */
-#define S626_ACON1_BASE		(S626_WS_MODES | S626_A1_RUN)
-#elif S626_PLATFORM == S626_MOTOROLA
-#define S626_ACON1_BASE		\
-	(S626_WS_MODES | S626_A1_RUN | S626_A1_SWAP | S626_A2_SWAP)
-#endif
-
-#define S626_ACON1_ADCSTART	S626_ACON1_BASE	/* Start ADC: run A1
-						 * based on TSL1. */
-#define S626_ACON1_DACSTART	(S626_ACON1_BASE | S626_A2_RUN)
-/* Start transmit to DAC: run A2 based on TSL2. */
-#define S626_ACON1_DACSTOP	S626_ACON1_BASE	/* Halt A2. */
-
-/* Bit masks for ACON2 register. */
-#define S626_A1_CLKSRC_BCLK1	0x00000000	/* A1 bit rate = BCLK1 (ADC). */
-#define S626_A2_CLKSRC_X1	0x00800000	/* A2 bit rate = ACLK/1
-						 * (DACs). */
-#define S626_A2_CLKSRC_X2	0x00C00000	/* A2 bit rate = ACLK/2
-						 * (DACs). */
-#define S626_A2_CLKSRC_X4	0x01400000	/* A2 bit rate = ACLK/4
-						 * (DACs). */
-#define S626_INVERT_BCLK2	0x00100000	/* Invert BCLK2 (DACs). */
-#define S626_BCLK2_OE		0x00040000	/* Enable BCLK2 (DACs). */
-#define S626_ACON2_XORMASK	0x000C0000	/* XOR mask for ACON2
-						 * active-low bits. */
-
-#define S626_ACON2_INIT		(S626_ACON2_XORMASK ^ \
-				 (S626_A1_CLKSRC_BCLK1 | S626_A2_CLKSRC_X2 | \
-				  S626_INVERT_BCLK2 | S626_BCLK2_OE))
-
-/* Bit masks for timeslot records. */
-#define S626_WS1		0x40000000	/* WS output to assert. */
-#define S626_WS2		0x20000000
-#define S626_WS3		0x10000000
-#define S626_WS4		0x08000000
-#define S626_RSD1		0x01000000	/* Shift A1 data in on SD1. */
-#define S626_SDW_A1		0x00800000	/* Store rcv'd char at next char
-						 * slot of DWORD1 buffer. */
-#define S626_SIB_A1		0x00400000	/* Store rcv'd char at next
-						 * char slot of FB1 buffer. */
-#define S626_SF_A1		0x00200000	/* Write unsigned long
-						 * buffer to input FIFO. */
-
-/* Select parallel-to-serial converter's data source: */
-#define S626_XFIFO_0		0x00000000	/* Data fifo byte 0. */
-#define S626_XFIFO_1		0x00000010	/* Data fifo byte 1. */
-#define S626_XFIFO_2		0x00000020	/* Data fifo byte 2. */
-#define S626_XFIFO_3		0x00000030	/* Data fifo byte 3. */
-#define S626_XFB0		0x00000040	/* FB_BUFFER byte 0. */
-#define S626_XFB1		0x00000050	/* FB_BUFFER byte 1. */
-#define S626_XFB2		0x00000060	/* FB_BUFFER byte 2. */
-#define S626_XFB3		0x00000070	/* FB_BUFFER byte 3. */
-#define S626_SIB_A2		0x00000200	/* Store next dword from A2's
-						 * input shifter to FB2
-						 * buffer. */
-#define S626_SF_A2		0x00000100	/* Store next dword from A2's
-						 * input shifter to its input
-						 * fifo. */
-#define S626_LF_A2		0x00000080	/* Load next dword from A2's
-						 * output fifo into its
-						 * output dword buffer. */
-#define S626_XSD2		0x00000008	/* Shift data out on SD2. */
-#define S626_RSD3		0x00001800	/* Shift data in on SD3. */
-#define S626_RSD2		0x00001000	/* Shift data in on SD2. */
-#define S626_LOW_A2		0x00000002	/* Drive last SD low for 7 clks,
-						 * then tri-state. */
-#define S626_EOS		0x00000001	/* End of superframe. */
-
-/* I2C configuration constants. */
-#define S626_I2C_CLKSEL		0x0400		/* I2C bit rate =
-						 * PCIclk/480 = 68.75 KHz. */
-#define S626_I2C_BITRATE	68.75		/* I2C bus data bit rate
-						 * (determined by
-						 * S626_I2C_CLKSEL) in KHz. */
-#define S626_I2C_WRTIME		15.0		/* Worst case time, in msec,
-						 * for EEPROM internal write
-						 * op. */
-
-/* I2C manifest constants. */
-
-/* Max retries to wait for EEPROM write. */
-#define S626_I2C_RETRIES	(S626_I2C_WRTIME * S626_I2C_BITRATE / 9.0)
-#define S626_I2C_ERR		0x0002	/* I2C control/status flag ERROR. */
-#define S626_I2C_BUSY		0x0001	/* I2C control/status flag BUSY. */
-#define S626_I2C_ABORT		0x0080	/* I2C status flag ABORT. */
-#define S626_I2C_ATTRSTART	0x3	/* I2C attribute START. */
-#define S626_I2C_ATTRCONT	0x2	/* I2C attribute CONT. */
-#define S626_I2C_ATTRSTOP	0x1	/* I2C attribute STOP. */
-#define S626_I2C_ATTRNOP	0x0	/* I2C attribute NOP. */
-
-/* Code macros used for constructing I2C command bytes. */
-#define S626_I2C_B2(ATTR, VAL)	(((ATTR) << 6) | ((VAL) << 24))
-#define S626_I2C_B1(ATTR, VAL)	(((ATTR) << 4) | ((VAL) << 16))
-#define S626_I2C_B0(ATTR, VAL)	(((ATTR) << 2) | ((VAL) <<  8))
-
-/* DEBI command constants. */
-#define S626_DEBI_CMD_SIZE16	(2 << 17)	/* Transfer size is always
-						 * 2 bytes. */
-#define S626_DEBI_CMD_READ	0x00010000	/* Read operation. */
-#define S626_DEBI_CMD_WRITE	0x00000000	/* Write operation. */
-
-/* Read immediate 2 bytes. */
-#define S626_DEBI_CMD_RDWORD	(S626_DEBI_CMD_READ | S626_DEBI_CMD_SIZE16)
-
-/* Write immediate 2 bytes. */
-#define S626_DEBI_CMD_WRWORD	(S626_DEBI_CMD_WRITE | S626_DEBI_CMD_SIZE16)
-
-/* DEBI configuration constants. */
-#define S626_DEBI_CFG_XIRQ_EN	0x80000000	/* Enable external interrupt
-						 * on GPIO3. */
-#define S626_DEBI_CFG_XRESUME	0x40000000	/* Resume block */
-						/* Transfer when XIRQ
-						 * deasserted. */
-#define S626_DEBI_CFG_TOQ	0x03C00000	/* Timeout (15 PCI cycles). */
-#define S626_DEBI_CFG_FAST	0x10000000	/* Fast mode enable. */
-
-/* 4-bit field that specifies DEBI timeout value in PCI clock cycles: */
-#define S626_DEBI_CFG_TOUT_BIT	22	/* Finish DEBI cycle after this many
-					 * clocks. */
-
-/* 2-bit field that specifies Endian byte lane steering: */
-#define S626_DEBI_CFG_SWAP_NONE	0x00000000	/* Straight - don't swap any
-						 * bytes (Intel). */
-#define S626_DEBI_CFG_SWAP_2	0x00100000	/* 2-byte swap (Motorola). */
-#define S626_DEBI_CFG_SWAP_4	0x00200000	/* 4-byte swap. */
-#define S626_DEBI_CFG_SLAVE16	0x00080000	/* Slave is able to serve
-						 * 16-bit cycles. */
-#define S626_DEBI_CFG_INC	0x00040000	/* Enable address increment
-						 * for block transfers. */
-#define S626_DEBI_CFG_INTEL	0x00020000	/* Intel style local bus. */
-#define S626_DEBI_CFG_TIMEROFF	0x00010000	/* Disable timer. */
-
-#if S626_PLATFORM == S626_INTEL
-
-#define S626_DEBI_TOUT		7	/* Wait 7 PCI clocks (212 ns) before
-					 * polling RDY. */
-
-/* Intel byte lane steering (pass through all byte lanes). */
-#define S626_DEBI_SWAP		S626_DEBI_CFG_SWAP_NONE
-
-#elif S626_PLATFORM == S626_MOTOROLA
-
-#define S626_DEBI_TOUT		15	/* Wait 15 PCI clocks (454 ns) maximum
-					 * before timing out. */
-
-/* Motorola byte lane steering. */
-#define S626_DEBI_SWAP		S626_DEBI_CFG_SWAP_2
-
-#endif
-
-/* DEBI page table constants. */
-#define S626_DEBI_PAGE_DISABLE	0x00000000	/* Paging disable. */
-
-/* ******* EXTRA FROM OTHER SENSORAY  * .h  ******* */
-
-/* LoadSrc values: */
-#define S626_LOADSRC_INDX	0	/* Preload core in response to Index. */
-#define S626_LOADSRC_OVER	1	/* Preload core in response to
-					 * Overflow. */
-#define S626_LOADSRCB_OVERA	2	/* Preload B core in response to
-					 * A Overflow. */
-#define S626_LOADSRC_NONE	3	/* Never preload core. */
-
-/* IntSrc values: */
-#define S626_INTSRC_NONE	0	/* Interrupts disabled. */
-#define S626_INTSRC_OVER	1	/* Interrupt on Overflow. */
-#define S626_INTSRC_INDX	2	/* Interrupt on Index. */
-#define S626_INTSRC_BOTH	3	/* Interrupt on Index or Overflow. */
-
-/* LatchSrc values: */
-#define S626_LATCHSRC_AB_READ	0	/* Latch on read. */
-#define S626_LATCHSRC_A_INDXA	1	/* Latch A on A Index. */
-#define S626_LATCHSRC_B_INDXB	2	/* Latch B on B Index. */
-#define S626_LATCHSRC_B_OVERA	3	/* Latch B on A Overflow. */
-
-/* IndxSrc values: */
-#define S626_INDXSRC_ENCODER	0	/* Encoder. */
-#define S626_INDXSRC_DIGIN	1	/* Digital inputs. */
-#define S626_INDXSRC_SOFT	2	/* S/w controlled by IndxPol bit. */
-#define S626_INDXSRC_DISABLED	3	/* Index disabled. */
-
-/* IndxPol values: */
-#define S626_INDXPOL_POS	0	/* Index input is active high. */
-#define S626_INDXPOL_NEG	1	/* Index input is active low. */
-
-/* Logical encoder mode values: */
-#define S626_ENCMODE_COUNTER	0	/* Counter mode. */
-#define S626_ENCMODE_TIMER	2	/* Timer mode. */
-#define S626_ENCMODE_EXTENDER	3	/* Extender mode. */
-
-/* Physical CntSrc values (for Counter A source and Counter B source): */
-#define S626_CNTSRC_ENCODER	0	/* Encoder */
-#define S626_CNTSRC_DIGIN	1	/* Digital inputs */
-#define S626_CNTSRC_SYSCLK	2	/* System clock up */
-#define S626_CNTSRC_SYSCLK_DOWN	3	/* System clock down */
-
-/* ClkPol values: */
-#define S626_CLKPOL_POS		0	/* Counter/Extender clock is
-					 * active high. */
-#define S626_CLKPOL_NEG		1	/* Counter/Extender clock is
-					 * active low. */
-#define S626_CNTDIR_UP		0	/* Timer counts up. */
-#define S626_CNTDIR_DOWN	1	/* Timer counts down. */
-
-/* ClkEnab values: */
-#define S626_CLKENAB_ALWAYS	0	/* Clock always enabled. */
-#define S626_CLKENAB_INDEX	1	/* Clock is enabled by index. */
-
-/* ClkMult values: */
-#define S626_CLKMULT_4X		0	/* 4x clock multiplier. */
-#define S626_CLKMULT_2X		1	/* 2x clock multiplier. */
-#define S626_CLKMULT_1X		2	/* 1x clock multiplier. */
-#define S626_CLKMULT_SPECIAL	3	/* Special clock multiplier value. */
-
-/* Sanity-check limits for parameters. */
-
-#define S626_NUM_COUNTERS	6	/* Maximum valid counter
-					 * logical channel number. */
-#define S626_NUM_INTSOURCES	4
-#define S626_NUM_LATCHSOURCES	4
-#define S626_NUM_CLKMULTS	4
-#define S626_NUM_CLKSOURCES	4
-#define S626_NUM_CLKPOLS	2
-#define S626_NUM_INDEXPOLS	2
-#define S626_NUM_INDEXSOURCES	2
-#define S626_NUM_LOADTRIGS	4
-
-/* General macros for manipulating bitfields: */
-#define S626_MAKE(x, w, p)	(((x) & ((1 << (w)) - 1)) << (p))
-#define S626_UNMAKE(v, w, p)	(((v) >> (p)) & ((1 << (w)) - 1))
-
-/* Bit field positions in CRA: */
-#define S626_CRABIT_INDXSRC_B	14	/* B index source. */
-#define S626_CRABIT_CNTSRC_B	12	/* B counter source. */
-#define S626_CRABIT_INDXPOL_A	11	/* A index polarity. */
-#define S626_CRABIT_LOADSRC_A	 9	/* A preload trigger. */
-#define S626_CRABIT_CLKMULT_A	 7	/* A clock multiplier. */
-#define S626_CRABIT_INTSRC_A	 5	/* A interrupt source. */
-#define S626_CRABIT_CLKPOL_A	 4	/* A clock polarity. */
-#define S626_CRABIT_INDXSRC_A	 2	/* A index source. */
-#define S626_CRABIT_CNTSRC_A	 0	/* A counter source. */
-
-/* Bit field widths in CRA: */
-#define S626_CRAWID_INDXSRC_B	2
-#define S626_CRAWID_CNTSRC_B	2
-#define S626_CRAWID_INDXPOL_A	1
-#define S626_CRAWID_LOADSRC_A	2
-#define S626_CRAWID_CLKMULT_A	2
-#define S626_CRAWID_INTSRC_A	2
-#define S626_CRAWID_CLKPOL_A	1
-#define S626_CRAWID_INDXSRC_A	2
-#define S626_CRAWID_CNTSRC_A	2
-
-/* Bit field masks for CRA: */
-#define S626_CRAMSK_INDXSRC_B	S626_SET_CRA_INDXSRC_B(~0)
-#define S626_CRAMSK_CNTSRC_B	S626_SET_CRA_CNTSRC_B(~0)
-#define S626_CRAMSK_INDXPOL_A	S626_SET_CRA_INDXPOL_A(~0)
-#define S626_CRAMSK_LOADSRC_A	S626_SET_CRA_LOADSRC_A(~0)
-#define S626_CRAMSK_CLKMULT_A	S626_SET_CRA_CLKMULT_A(~0)
-#define S626_CRAMSK_INTSRC_A	S626_SET_CRA_INTSRC_A(~0)
-#define S626_CRAMSK_CLKPOL_A	S626_SET_CRA_CLKPOL_A(~0)
-#define S626_CRAMSK_INDXSRC_A	S626_SET_CRA_INDXSRC_A(~0)
-#define S626_CRAMSK_CNTSRC_A	S626_SET_CRA_CNTSRC_A(~0)
-
-/* Construct parts of the CRA value: */
-#define S626_SET_CRA_INDXSRC_B(x)	\
-	S626_MAKE((x), S626_CRAWID_INDXSRC_B, S626_CRABIT_INDXSRC_B)
-#define S626_SET_CRA_CNTSRC_B(x)	\
-	S626_MAKE((x), S626_CRAWID_CNTSRC_B, S626_CRABIT_CNTSRC_B)
-#define S626_SET_CRA_INDXPOL_A(x)	\
-	S626_MAKE((x), S626_CRAWID_INDXPOL_A, S626_CRABIT_INDXPOL_A)
-#define S626_SET_CRA_LOADSRC_A(x)	\
-	S626_MAKE((x), S626_CRAWID_LOADSRC_A, S626_CRABIT_LOADSRC_A)
-#define S626_SET_CRA_CLKMULT_A(x)	\
-	S626_MAKE((x), S626_CRAWID_CLKMULT_A, S626_CRABIT_CLKMULT_A)
-#define S626_SET_CRA_INTSRC_A(x)	\
-	S626_MAKE((x), S626_CRAWID_INTSRC_A, S626_CRABIT_INTSRC_A)
-#define S626_SET_CRA_CLKPOL_A(x)	\
-	S626_MAKE((x), S626_CRAWID_CLKPOL_A, S626_CRABIT_CLKPOL_A)
-#define S626_SET_CRA_INDXSRC_A(x)	\
-	S626_MAKE((x), S626_CRAWID_INDXSRC_A, S626_CRABIT_INDXSRC_A)
-#define S626_SET_CRA_CNTSRC_A(x)	\
-	S626_MAKE((x), S626_CRAWID_CNTSRC_A, S626_CRABIT_CNTSRC_A)
-
-/* Extract parts of the CRA value: */
-#define S626_GET_CRA_INDXSRC_B(v)	\
-	S626_UNMAKE((v), S626_CRAWID_INDXSRC_B, S626_CRABIT_INDXSRC_B)
-#define S626_GET_CRA_CNTSRC_B(v)	\
-	S626_UNMAKE((v), S626_CRAWID_CNTSRC_B, S626_CRABIT_CNTSRC_B)
-#define S626_GET_CRA_INDXPOL_A(v)	\
-	S626_UNMAKE((v), S626_CRAWID_INDXPOL_A, S626_CRABIT_INDXPOL_A)
-#define S626_GET_CRA_LOADSRC_A(v)	\
-	S626_UNMAKE((v), S626_CRAWID_LOADSRC_A, S626_CRABIT_LOADSRC_A)
-#define S626_GET_CRA_CLKMULT_A(v)	\
-	S626_UNMAKE((v), S626_CRAWID_CLKMULT_A, S626_CRABIT_CLKMULT_A)
-#define S626_GET_CRA_INTSRC_A(v)	\
-	S626_UNMAKE((v), S626_CRAWID_INTSRC_A, S626_CRABIT_INTSRC_A)
-#define S626_GET_CRA_CLKPOL_A(v)	\
-	S626_UNMAKE((v), S626_CRAWID_CLKPOL_A, S626_CRABIT_CLKPOL_A)
-#define S626_GET_CRA_INDXSRC_A(v)	\
-	S626_UNMAKE((v), S626_CRAWID_INDXSRC_A, S626_CRABIT_INDXSRC_A)
-#define S626_GET_CRA_CNTSRC_A(v)	\
-	S626_UNMAKE((v), S626_CRAWID_CNTSRC_A, S626_CRABIT_CNTSRC_A)
-
-/* Bit field positions in CRB: */
-#define S626_CRBBIT_INTRESETCMD	15	/* (w) Interrupt reset command. */
-#define S626_CRBBIT_CNTDIR_B	15	/* (r) B counter direction. */
-#define S626_CRBBIT_INTRESET_B	14	/* (w) B interrupt reset enable. */
-#define S626_CRBBIT_OVERDO_A	14	/* (r) A overflow routed to dig. out. */
-#define S626_CRBBIT_INTRESET_A	13	/* (w) A interrupt reset enable. */
-#define S626_CRBBIT_OVERDO_B	13	/* (r) B overflow routed to dig. out. */
-#define S626_CRBBIT_CLKENAB_A	12	/* A clock enable. */
-#define S626_CRBBIT_INTSRC_B	10	/* B interrupt source. */
-#define S626_CRBBIT_LATCHSRC	 8	/* A/B latch source. */
-#define S626_CRBBIT_LOADSRC_B	 6	/* B preload trigger. */
-#define S626_CRBBIT_CLEAR_B	 7	/* B cleared when A overflows. */
-#define S626_CRBBIT_CLKMULT_B	 3	/* B clock multiplier. */
-#define S626_CRBBIT_CLKENAB_B	 2	/* B clock enable. */
-#define S626_CRBBIT_INDXPOL_B	 1	/* B index polarity. */
-#define S626_CRBBIT_CLKPOL_B	 0	/* B clock polarity. */
-
-/* Bit field widths in CRB: */
-#define S626_CRBWID_INTRESETCMD	1
-#define S626_CRBWID_CNTDIR_B	1
-#define S626_CRBWID_INTRESET_B	1
-#define S626_CRBWID_OVERDO_A	1
-#define S626_CRBWID_INTRESET_A	1
-#define S626_CRBWID_OVERDO_B	1
-#define S626_CRBWID_CLKENAB_A	1
-#define S626_CRBWID_INTSRC_B	2
-#define S626_CRBWID_LATCHSRC	2
-#define S626_CRBWID_LOADSRC_B	2
-#define S626_CRBWID_CLEAR_B	1
-#define S626_CRBWID_CLKMULT_B	2
-#define S626_CRBWID_CLKENAB_B	1
-#define S626_CRBWID_INDXPOL_B	1
-#define S626_CRBWID_CLKPOL_B	1
-
-/* Bit field masks for CRB: */
-#define S626_CRBMSK_INTRESETCMD	S626_SET_CRB_INTRESETCMD(~0)	/* (w) */
-#define S626_CRBMSK_CNTDIR_B	S626_CRBMSK_INTRESETCMD		/* (r) */
-#define S626_CRBMSK_INTRESET_B	S626_SET_CRB_INTRESET_B(~0)	/* (w) */
-#define S626_CRBMSK_OVERDO_A	S626_CRBMSK_INTRESET_B		/* (r) */
-#define S626_CRBMSK_INTRESET_A	S626_SET_CRB_INTRESET_A(~0)	/* (w) */
-#define S626_CRBMSK_OVERDO_B	S626_CRBMSK_INTRESET_A		/* (r) */
-#define S626_CRBMSK_CLKENAB_A	S626_SET_CRB_CLKENAB_A(~0)
-#define S626_CRBMSK_INTSRC_B	S626_SET_CRB_INTSRC_B(~0)
-#define S626_CRBMSK_LATCHSRC	S626_SET_CRB_LATCHSRC(~0)
-#define S626_CRBMSK_LOADSRC_B	S626_SET_CRB_LOADSRC_B(~0)
-#define S626_CRBMSK_CLEAR_B	S626_SET_CRB_CLEAR_B(~0)
-#define S626_CRBMSK_CLKMULT_B	S626_SET_CRB_CLKMULT_B(~0)
-#define S626_CRBMSK_CLKENAB_B	S626_SET_CRB_CLKENAB_B(~0)
-#define S626_CRBMSK_INDXPOL_B	S626_SET_CRB_INDXPOL_B(~0)
-#define S626_CRBMSK_CLKPOL_B	S626_SET_CRB_CLKPOL_B(~0)
-
-/* Interrupt reset control bits. */
-#define S626_CRBMSK_INTCTRL	(S626_CRBMSK_INTRESETCMD | \
-				 S626_CRBMSK_INTRESET_A | \
-				 S626_CRBMSK_INTRESET_B)
-
-/* Construct parts of the CRB value: */
-#define S626_SET_CRB_INTRESETCMD(x)	\
-	S626_MAKE((x), S626_CRBWID_INTRESETCMD, S626_CRBBIT_INTRESETCMD)
-#define S626_SET_CRB_INTRESET_B(x)	\
-	S626_MAKE((x), S626_CRBWID_INTRESET_B, S626_CRBBIT_INTRESET_B)
-#define S626_SET_CRB_INTRESET_A(x)	\
-	S626_MAKE((x), S626_CRBWID_INTRESET_A, S626_CRBBIT_INTRESET_A)
-#define S626_SET_CRB_CLKENAB_A(x)	\
-	S626_MAKE((x), S626_CRBWID_CLKENAB_A, S626_CRBBIT_CLKENAB_A)
-#define S626_SET_CRB_INTSRC_B(x)	\
-	S626_MAKE((x), S626_CRBWID_INTSRC_B, S626_CRBBIT_INTSRC_B)
-#define S626_SET_CRB_LATCHSRC(x)	\
-	S626_MAKE((x), S626_CRBWID_LATCHSRC, S626_CRBBIT_LATCHSRC)
-#define S626_SET_CRB_LOADSRC_B(x)	\
-	S626_MAKE((x), S626_CRBWID_LOADSRC_B, S626_CRBBIT_LOADSRC_B)
-#define S626_SET_CRB_CLEAR_B(x)	\
-	S626_MAKE((x), S626_CRBWID_CLEAR_B, S626_CRBBIT_CLEAR_B)
-#define S626_SET_CRB_CLKMULT_B(x)	\
-	S626_MAKE((x), S626_CRBWID_CLKMULT_B, S626_CRBBIT_CLKMULT_B)
-#define S626_SET_CRB_CLKENAB_B(x)	\
-	S626_MAKE((x), S626_CRBWID_CLKENAB_B, S626_CRBBIT_CLKENAB_B)
-#define S626_SET_CRB_INDXPOL_B(x)	\
-	S626_MAKE((x), S626_CRBWID_INDXPOL_B, S626_CRBBIT_INDXPOL_B)
-#define S626_SET_CRB_CLKPOL_B(x)	\
-	S626_MAKE((x), S626_CRBWID_CLKPOL_B, S626_CRBBIT_CLKPOL_B)
-
-/* Extract parts of the CRB value: */
-#define S626_GET_CRB_CNTDIR_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_CNTDIR_B, S626_CRBBIT_CNTDIR_B)
-#define S626_GET_CRB_OVERDO_A(v)	\
-	S626_UNMAKE((v), S626_CRBWID_OVERDO_A, S626_CRBBIT_OVERDO_A)
-#define S626_GET_CRB_OVERDO_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_OVERDO_B, S626_CRBBIT_OVERDO_B)
-#define S626_GET_CRB_CLKENAB_A(v)	\
-	S626_UNMAKE((v), S626_CRBWID_CLKENAB_A, S626_CRBBIT_CLKENAB_A)
-#define S626_GET_CRB_INTSRC_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_INTSRC_B, S626_CRBBIT_INTSRC_B)
-#define S626_GET_CRB_LATCHSRC(v)	\
-	S626_UNMAKE((v), S626_CRBWID_LATCHSRC, S626_CRBBIT_LATCHSRC)
-#define S626_GET_CRB_LOADSRC_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_LOADSRC_B, S626_CRBBIT_LOADSRC_B)
-#define S626_GET_CRB_CLEAR_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_CLEAR_B, S626_CRBBIT_CLEAR_B)
-#define S626_GET_CRB_CLKMULT_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_CLKMULT_B, S626_CRBBIT_CLKMULT_B)
-#define S626_GET_CRB_CLKENAB_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_CLKENAB_B, S626_CRBBIT_CLKENAB_B)
-#define S626_GET_CRB_INDXPOL_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_INDXPOL_B, S626_CRBBIT_INDXPOL_B)
-#define S626_GET_CRB_CLKPOL_B(v)	\
-	S626_UNMAKE((v), S626_CRBWID_CLKPOL_B, S626_CRBBIT_CLKPOL_B)
-
-/* Bit field positions for standardized SETUP structure: */
-#define S626_STDBIT_INTSRC	13
-#define S626_STDBIT_LATCHSRC	11
-#define S626_STDBIT_LOADSRC	 9
-#define S626_STDBIT_INDXSRC	 7
-#define S626_STDBIT_INDXPOL	 6
-#define S626_STDBIT_ENCMODE	 4
-#define S626_STDBIT_CLKPOL	 3
-#define S626_STDBIT_CLKMULT	 1
-#define S626_STDBIT_CLKENAB	 0
-
-/* Bit field widths for standardized SETUP structure: */
-#define S626_STDWID_INTSRC	2
-#define S626_STDWID_LATCHSRC	2
-#define S626_STDWID_LOADSRC	2
-#define S626_STDWID_INDXSRC	2
-#define S626_STDWID_INDXPOL	1
-#define S626_STDWID_ENCMODE	2
-#define S626_STDWID_CLKPOL	1
-#define S626_STDWID_CLKMULT	2
-#define S626_STDWID_CLKENAB	1
-
-/* Bit field masks for standardized SETUP structure: */
-#define S626_STDMSK_INTSRC	S626_SET_STD_INTSRC(~0)
-#define S626_STDMSK_LATCHSRC	S626_SET_STD_LATCHSRC(~0)
-#define S626_STDMSK_LOADSRC	S626_SET_STD_LOADSRC(~0)
-#define S626_STDMSK_INDXSRC	S626_SET_STD_INDXSRC(~0)
-#define S626_STDMSK_INDXPOL	S626_SET_STD_INDXPOL(~0)
-#define S626_STDMSK_ENCMODE	S626_SET_STD_ENCMODE(~0)
-#define S626_STDMSK_CLKPOL	S626_SET_STD_CLKPOL(~0)
-#define S626_STDMSK_CLKMULT	S626_SET_STD_CLKMULT(~0)
-#define S626_STDMSK_CLKENAB	S626_SET_STD_CLKENAB(~0)
-
-/* Construct parts of standardized SETUP structure: */
-#define S626_SET_STD_INTSRC(x)	\
-	S626_MAKE((x), S626_STDWID_INTSRC, S626_STDBIT_INTSRC)
-#define S626_SET_STD_LATCHSRC(x)	\
-	S626_MAKE((x), S626_STDWID_LATCHSRC, S626_STDBIT_LATCHSRC)
-#define S626_SET_STD_LOADSRC(x)	\
-	S626_MAKE((x), S626_STDWID_LOADSRC, S626_STDBIT_LOADSRC)
-#define S626_SET_STD_INDXSRC(x)	\
-	S626_MAKE((x), S626_STDWID_INDXSRC, S626_STDBIT_INDXSRC)
-#define S626_SET_STD_INDXPOL(x)	\
-	S626_MAKE((x), S626_STDWID_INDXPOL, S626_STDBIT_INDXPOL)
-#define S626_SET_STD_ENCMODE(x)	\
-	S626_MAKE((x), S626_STDWID_ENCMODE, S626_STDBIT_ENCMODE)
-#define S626_SET_STD_CLKPOL(x)	\
-	S626_MAKE((x), S626_STDWID_CLKPOL, S626_STDBIT_CLKPOL)
-#define S626_SET_STD_CLKMULT(x)	\
-	S626_MAKE((x), S626_STDWID_CLKMULT, S626_STDBIT_CLKMULT)
-#define S626_SET_STD_CLKENAB(x)	\
-	S626_MAKE((x), S626_STDWID_CLKENAB, S626_STDBIT_CLKENAB)
-
-/* Extract parts of standardized SETUP structure: */
-#define S626_GET_STD_INTSRC(v)	\
-	S626_UNMAKE((v), S626_STDWID_INTSRC, S626_STDBIT_INTSRC)
-#define S626_GET_STD_LATCHSRC(v)	\
-	S626_UNMAKE((v), S626_STDWID_LATCHSRC, S626_STDBIT_LATCHSRC)
-#define S626_GET_STD_LOADSRC(v)	\
-	S626_UNMAKE((v), S626_STDWID_LOADSRC, S626_STDBIT_LOADSRC)
-#define S626_GET_STD_INDXSRC(v)	\
-	S626_UNMAKE((v), S626_STDWID_INDXSRC, S626_STDBIT_INDXSRC)
-#define S626_GET_STD_INDXPOL(v)	\
-	S626_UNMAKE((v), S626_STDWID_INDXPOL, S626_STDBIT_INDXPOL)
-#define S626_GET_STD_ENCMODE(v)	\
-	S626_UNMAKE((v), S626_STDWID_ENCMODE, S626_STDBIT_ENCMODE)
-#define S626_GET_STD_CLKPOL(v)	\
-	S626_UNMAKE((v), S626_STDWID_CLKPOL, S626_STDBIT_CLKPOL)
-#define S626_GET_STD_CLKMULT(v)	\
-	S626_UNMAKE((v), S626_STDWID_CLKMULT, S626_STDBIT_CLKMULT)
-#define S626_GET_STD_CLKENAB(v)	\
-	S626_UNMAKE((v), S626_STDWID_CLKENAB, S626_STDBIT_CLKENAB)
-
-#endif
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
deleted file mode 100644
index 5f19374c460d..000000000000
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ /dev/null
@@ -1,798 +0,0 @@
-/*
-    comedi/drivers/serial2002.c
-    Skeleton code for a Comedi driver
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2002 Anders Blomdell <anders.blomdell@control.lth.se>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-/*
-Driver: serial2002
-Description: Driver for serial connected hardware
-Devices:
-Author: Anders Blomdell
-Updated: Fri,  7 Jun 2002 12:56:45 -0700
-Status: in development
-
-*/
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/ktime.h>
-
-#include <linux/termios.h>
-#include <asm/ioctls.h>
-#include <linux/serial.h>
-#include <linux/poll.h>
-
-struct serial2002_range_table_t {
-	/*  HACK... */
-	int length;
-	struct comedi_krange range;
-};
-
-struct serial2002_private {
-	int port;		/*  /dev/ttyS<port> */
-	int speed;		/*  baudrate */
-	struct file *tty;
-	unsigned int ao_readback[32];
-	unsigned char digital_in_mapping[32];
-	unsigned char digital_out_mapping[32];
-	unsigned char analog_in_mapping[32];
-	unsigned char analog_out_mapping[32];
-	unsigned char encoder_in_mapping[32];
-	struct serial2002_range_table_t in_range[32], out_range[32];
-};
-
-struct serial_data {
-	enum { is_invalid, is_digital, is_channel } kind;
-	int index;
-	unsigned long value;
-};
-
-/*
- * The configuration serial_data.value read from the device is
- * a bitmask that defines specific options of a channel:
- *
- * 4:0 - the channel to configure
- * 7:5 - the kind of channel
- * 9:8 - the command used to configure the channel
- *
- * The remaining bits vary in use depending on the command:
- *
- * BITS     15:10 - the channel bits (maxdata)
- * MIN/MAX  12:10 - the units multiplier for the scale
- *          13    - the sign of the scale
- *          33:14 - the base value for the range
- */
-#define S2002_CFG_CHAN(x)		((x) & 0x1f)
-#define S2002_CFG_KIND(x)		(((x) >> 5) & 0x7)
-#define S2002_CFG_KIND_INVALID		0
-#define S2002_CFG_KIND_DIGITAL_IN	1
-#define S2002_CFG_KIND_DIGITAL_OUT	2
-#define S2002_CFG_KIND_ANALOG_IN	3
-#define S2002_CFG_KIND_ANALOG_OUT	4
-#define S2002_CFG_KIND_ENCODER_IN	5
-#define S2002_CFG_CMD(x)		(((x) >> 8) & 0x3)
-#define S2002_CFG_CMD_BITS		0
-#define S2002_CFG_CMD_MIN		1
-#define S2002_CFG_CMD_MAX		2
-#define S2002_CFG_BITS(x)		(((x) >> 10) & 0x3f)
-#define S2002_CFG_UNITS(x)		(((x) >> 10) & 0x7)
-#define S2002_CFG_SIGN(x)		(((x) >> 13) & 0x1)
-#define S2002_CFG_BASE(x)		(((x) >> 14) & 0xfffff)
-
-static long serial2002_tty_ioctl(struct file *f, unsigned op,
-				 unsigned long param)
-{
-	if (f->f_op->unlocked_ioctl)
-		return f->f_op->unlocked_ioctl(f, op, param);
-
-	return -ENOSYS;
-}
-
-static int serial2002_tty_write(struct file *f, unsigned char *buf, int count)
-{
-	const char __user *p = (__force const char __user *)buf;
-	int result;
-	loff_t offset = 0;
-	mm_segment_t oldfs;
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-	result = __vfs_write(f, p, count, &offset);
-	set_fs(oldfs);
-	return result;
-}
-
-static void serial2002_tty_read_poll_wait(struct file *f, int timeout)
-{
-	struct poll_wqueues table;
-	ktime_t start, now;
-
-	start = ktime_get();
-	poll_initwait(&table);
-	while (1) {
-		long elapsed;
-		int mask;
-
-		mask = f->f_op->poll(f, &table.pt);
-		if (mask & (POLLRDNORM | POLLRDBAND | POLLIN |
-			    POLLHUP | POLLERR)) {
-			break;
-		}
-		now = ktime_get();
-		elapsed = ktime_us_delta(now, start);
-		if (elapsed > timeout)
-			break;
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(((timeout - elapsed) * HZ) / 10000);
-	}
-	poll_freewait(&table);
-}
-
-static int serial2002_tty_read(struct file *f, int timeout)
-{
-	unsigned char ch;
-	int result;
-
-	result = -1;
-	if (!IS_ERR(f)) {
-		mm_segment_t oldfs;
-		char __user *p = (__force char __user *)&ch;
-		loff_t offset = 0;
-
-		oldfs = get_fs();
-		set_fs(KERNEL_DS);
-		if (f->f_op->poll) {
-			serial2002_tty_read_poll_wait(f, timeout);
-
-			if (__vfs_read(f, p, 1, &offset) == 1)
-				result = ch;
-		} else {
-			/* Device does not support poll, busy wait */
-			int retries = 0;
-
-			while (1) {
-				retries++;
-				if (retries >= timeout)
-					break;
-
-				if (__vfs_read(f, p, 1, &offset) == 1) {
-					result = ch;
-					break;
-				}
-				udelay(100);
-			}
-		}
-		set_fs(oldfs);
-	}
-	return result;
-}
-
-static void serial2002_tty_setspeed(struct file *f, int speed)
-{
-	struct termios termios;
-	struct serial_struct serial;
-	mm_segment_t oldfs;
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-
-	/* Set speed */
-	serial2002_tty_ioctl(f, TCGETS, (unsigned long)&termios);
-	termios.c_iflag = 0;
-	termios.c_oflag = 0;
-	termios.c_lflag = 0;
-	termios.c_cflag = CLOCAL | CS8 | CREAD;
-	termios.c_cc[VMIN] = 0;
-	termios.c_cc[VTIME] = 0;
-	switch (speed) {
-	case 2400:
-		termios.c_cflag |= B2400;
-		break;
-	case 4800:
-		termios.c_cflag |= B4800;
-		break;
-	case 9600:
-		termios.c_cflag |= B9600;
-		break;
-	case 19200:
-		termios.c_cflag |= B19200;
-		break;
-	case 38400:
-		termios.c_cflag |= B38400;
-		break;
-	case 57600:
-		termios.c_cflag |= B57600;
-		break;
-	case 115200:
-		termios.c_cflag |= B115200;
-		break;
-	default:
-		termios.c_cflag |= B9600;
-		break;
-	}
-	serial2002_tty_ioctl(f, TCSETS, (unsigned long)&termios);
-
-	/* Set low latency */
-	serial2002_tty_ioctl(f, TIOCGSERIAL, (unsigned long)&serial);
-	serial.flags |= ASYNC_LOW_LATENCY;
-	serial2002_tty_ioctl(f, TIOCSSERIAL, (unsigned long)&serial);
-
-	set_fs(oldfs);
-}
-
-static void serial2002_poll_digital(struct file *f, int channel)
-{
-	char cmd;
-
-	cmd = 0x40 | (channel & 0x1f);
-	serial2002_tty_write(f, &cmd, 1);
-}
-
-static void serial2002_poll_channel(struct file *f, int channel)
-{
-	char cmd;
-
-	cmd = 0x60 | (channel & 0x1f);
-	serial2002_tty_write(f, &cmd, 1);
-}
-
-static struct serial_data serial2002_read(struct file *f, int timeout)
-{
-	struct serial_data result;
-	int length;
-
-	result.kind = is_invalid;
-	result.index = 0;
-	result.value = 0;
-	length = 0;
-	while (1) {
-		int data = serial2002_tty_read(f, timeout);
-
-		length++;
-		if (data < 0) {
-			break;
-		} else if (data & 0x80) {
-			result.value = (result.value << 7) | (data & 0x7f);
-		} else {
-			if (length == 1) {
-				switch ((data >> 5) & 0x03) {
-				case 0:
-					result.value = 0;
-					result.kind = is_digital;
-					break;
-				case 1:
-					result.value = 1;
-					result.kind = is_digital;
-					break;
-				}
-			} else {
-				result.value =
-				    (result.value << 2) | ((data & 0x60) >> 5);
-				result.kind = is_channel;
-			}
-			result.index = data & 0x1f;
-			break;
-		}
-	}
-	return result;
-}
-
-static void serial2002_write(struct file *f, struct serial_data data)
-{
-	if (data.kind == is_digital) {
-		unsigned char ch =
-		    ((data.value << 5) & 0x20) | (data.index & 0x1f);
-		serial2002_tty_write(f, &ch, 1);
-	} else {
-		unsigned char ch[6];
-		int i = 0;
-
-		if (data.value >= (1L << 30)) {
-			ch[i] = 0x80 | ((data.value >> 30) & 0x03);
-			i++;
-		}
-		if (data.value >= (1L << 23)) {
-			ch[i] = 0x80 | ((data.value >> 23) & 0x7f);
-			i++;
-		}
-		if (data.value >= (1L << 16)) {
-			ch[i] = 0x80 | ((data.value >> 16) & 0x7f);
-			i++;
-		}
-		if (data.value >= (1L << 9)) {
-			ch[i] = 0x80 | ((data.value >> 9) & 0x7f);
-			i++;
-		}
-		ch[i] = 0x80 | ((data.value >> 2) & 0x7f);
-		i++;
-		ch[i] = ((data.value << 5) & 0x60) | (data.index & 0x1f);
-		i++;
-		serial2002_tty_write(f, ch, i);
-	}
-}
-
-struct config_t {
-	short int kind;
-	short int bits;
-	int min;
-	int max;
-};
-
-static int serial2002_setup_subdevice(struct comedi_subdevice *s,
-				      struct config_t *cfg,
-				      struct serial2002_range_table_t *range,
-				      unsigned char *mapping,
-				      int kind)
-{
-	const struct comedi_lrange **range_table_list = NULL;
-	unsigned int *maxdata_list;
-	int j, chan;
-
-	for (chan = 0, j = 0; j < 32; j++) {
-		if (cfg[j].kind == kind)
-			chan++;
-	}
-	s->n_chan = chan;
-	s->maxdata = 0;
-	kfree(s->maxdata_list);
-	maxdata_list = kmalloc_array(s->n_chan, sizeof(unsigned int),
-				     GFP_KERNEL);
-	if (!maxdata_list)
-		return -ENOMEM;
-	s->maxdata_list = maxdata_list;
-	kfree(s->range_table_list);
-	s->range_table = NULL;
-	s->range_table_list = NULL;
-	if (kind == 1 || kind == 2) {
-		s->range_table = &range_digital;
-	} else if (range) {
-		range_table_list = kmalloc_array(s->n_chan, sizeof(*range),
-						 GFP_KERNEL);
-		if (!range_table_list)
-			return -ENOMEM;
-		s->range_table_list = range_table_list;
-	}
-	for (chan = 0, j = 0; j < 32; j++) {
-		if (cfg[j].kind == kind) {
-			if (mapping)
-				mapping[chan] = j;
-			if (range && range_table_list) {
-				range[j].length = 1;
-				range[j].range.min = cfg[j].min;
-				range[j].range.max = cfg[j].max;
-				range_table_list[chan] =
-				    (const struct comedi_lrange *)&range[j];
-			}
-			maxdata_list[chan] = ((long long)1 << cfg[j].bits) - 1;
-			chan++;
-		}
-	}
-	return 0;
-}
-
-static int serial2002_setup_subdevs(struct comedi_device *dev)
-{
-	struct serial2002_private *devpriv = dev->private;
-	struct config_t *di_cfg;
-	struct config_t *do_cfg;
-	struct config_t *ai_cfg;
-	struct config_t *ao_cfg;
-	struct config_t *cfg;
-	struct comedi_subdevice *s;
-	int result = 0;
-	int i;
-
-	/* Allocate the temporary structs to hold the configuration data */
-	di_cfg = kcalloc(32, sizeof(*cfg), GFP_KERNEL);
-	do_cfg = kcalloc(32, sizeof(*cfg), GFP_KERNEL);
-	ai_cfg = kcalloc(32, sizeof(*cfg), GFP_KERNEL);
-	ao_cfg = kcalloc(32, sizeof(*cfg), GFP_KERNEL);
-	if (!di_cfg || !do_cfg || !ai_cfg || !ao_cfg) {
-		result = -ENOMEM;
-		goto err_alloc_configs;
-	}
-
-	/* Read the configuration from the connected device */
-	serial2002_tty_setspeed(devpriv->tty, devpriv->speed);
-	serial2002_poll_channel(devpriv->tty, 31);
-	while (1) {
-		struct serial_data data = serial2002_read(devpriv->tty, 1000);
-		int kind = S2002_CFG_KIND(data.value);
-		int channel = S2002_CFG_CHAN(data.value);
-		int range = S2002_CFG_BASE(data.value);
-		int cmd = S2002_CFG_CMD(data.value);
-
-		if (data.kind != is_channel || data.index != 31 ||
-		    kind == S2002_CFG_KIND_INVALID)
-			break;
-
-		switch (kind) {
-		case S2002_CFG_KIND_DIGITAL_IN:
-			cfg = di_cfg;
-			break;
-		case S2002_CFG_KIND_DIGITAL_OUT:
-			cfg = do_cfg;
-			break;
-		case S2002_CFG_KIND_ANALOG_IN:
-			cfg = ai_cfg;
-			break;
-		case S2002_CFG_KIND_ANALOG_OUT:
-			cfg = ao_cfg;
-			break;
-		case S2002_CFG_KIND_ENCODER_IN:
-			cfg = ai_cfg;
-			break;
-		default:
-			cfg = NULL;
-			break;
-		}
-		if (!cfg)
-			continue;	/* unknown kind, skip it */
-
-		cfg[channel].kind = kind;
-
-		switch (cmd) {
-		case S2002_CFG_CMD_BITS:
-			cfg[channel].bits = S2002_CFG_BITS(data.value);
-			break;
-		case S2002_CFG_CMD_MIN:
-		case S2002_CFG_CMD_MAX:
-			switch (S2002_CFG_UNITS(data.value)) {
-			case 0:
-				range *= 1000000;
-				break;
-			case 1:
-				range *= 1000;
-				break;
-			case 2:
-				range *= 1;
-				break;
-			}
-			if (S2002_CFG_SIGN(data.value))
-				range = -range;
-			if (cmd == S2002_CFG_CMD_MIN)
-				cfg[channel].min = range;
-			else
-				cfg[channel].max = range;
-			break;
-		}
-	}
-
-	/* Fill in subdevice data */
-	for (i = 0; i <= 4; i++) {
-		unsigned char *mapping = NULL;
-		struct serial2002_range_table_t *range = NULL;
-		int kind = 0;
-
-		s = &dev->subdevices[i];
-
-		switch (i) {
-		case 0:
-			cfg = di_cfg;
-			mapping = devpriv->digital_in_mapping;
-			kind = S2002_CFG_KIND_DIGITAL_IN;
-			break;
-		case 1:
-			cfg = do_cfg;
-			mapping = devpriv->digital_out_mapping;
-			kind = S2002_CFG_KIND_DIGITAL_OUT;
-			break;
-		case 2:
-			cfg = ai_cfg;
-			mapping = devpriv->analog_in_mapping;
-			range = devpriv->in_range;
-			kind = S2002_CFG_KIND_ANALOG_IN;
-			break;
-		case 3:
-			cfg = ao_cfg;
-			mapping = devpriv->analog_out_mapping;
-			range = devpriv->out_range;
-			kind = S2002_CFG_KIND_ANALOG_OUT;
-			break;
-		case 4:
-			cfg = ai_cfg;
-			mapping = devpriv->encoder_in_mapping;
-			range = devpriv->in_range;
-			kind = S2002_CFG_KIND_ENCODER_IN;
-			break;
-		}
-
-		if (serial2002_setup_subdevice(s, cfg, range, mapping, kind))
-			break;	/* err handled below */
-	}
-	if (i <= 4) {
-		/*
-		 * Failed to allocate maxdata_list or range_table_list
-		 * for a subdevice that needed it.
-		 */
-		result = -ENOMEM;
-		for (i = 0; i <= 4; i++) {
-			s = &dev->subdevices[i];
-			kfree(s->maxdata_list);
-			s->maxdata_list = NULL;
-			kfree(s->range_table_list);
-			s->range_table_list = NULL;
-		}
-	}
-
-err_alloc_configs:
-	kfree(di_cfg);
-	kfree(do_cfg);
-	kfree(ai_cfg);
-	kfree(ao_cfg);
-
-	if (result) {
-		if (devpriv->tty) {
-			filp_close(devpriv->tty, NULL);
-			devpriv->tty = NULL;
-		}
-	}
-
-	return result;
-}
-
-static int serial2002_open(struct comedi_device *dev)
-{
-	struct serial2002_private *devpriv = dev->private;
-	int result;
-	char port[20];
-
-	sprintf(port, "/dev/ttyS%d", devpriv->port);
-	devpriv->tty = filp_open(port, O_RDWR, 0);
-	if (IS_ERR(devpriv->tty)) {
-		result = (int)PTR_ERR(devpriv->tty);
-		dev_err(dev->class_dev, "file open error = %d\n", result);
-	} else {
-		result = serial2002_setup_subdevs(dev);
-	}
-	return result;
-}
-
-static void serial2002_close(struct comedi_device *dev)
-{
-	struct serial2002_private *devpriv = dev->private;
-
-	if (!IS_ERR(devpriv->tty) && devpriv->tty)
-		filp_close(devpriv->tty, NULL);
-}
-
-static int serial2002_di_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct serial2002_private *devpriv = dev->private;
-	int n;
-	int chan;
-
-	chan = devpriv->digital_in_mapping[CR_CHAN(insn->chanspec)];
-	for (n = 0; n < insn->n; n++) {
-		struct serial_data read;
-
-		serial2002_poll_digital(devpriv->tty, chan);
-		while (1) {
-			read = serial2002_read(devpriv->tty, 1000);
-			if (read.kind != is_digital || read.index == chan)
-				break;
-		}
-		data[n] = read.value;
-	}
-	return n;
-}
-
-static int serial2002_do_insn_write(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct serial2002_private *devpriv = dev->private;
-	int n;
-	int chan;
-
-	chan = devpriv->digital_out_mapping[CR_CHAN(insn->chanspec)];
-	for (n = 0; n < insn->n; n++) {
-		struct serial_data write;
-
-		write.kind = is_digital;
-		write.index = chan;
-		write.value = data[n];
-		serial2002_write(devpriv->tty, write);
-	}
-	return n;
-}
-
-static int serial2002_ai_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct serial2002_private *devpriv = dev->private;
-	int n;
-	int chan;
-
-	chan = devpriv->analog_in_mapping[CR_CHAN(insn->chanspec)];
-	for (n = 0; n < insn->n; n++) {
-		struct serial_data read;
-
-		serial2002_poll_channel(devpriv->tty, chan);
-		while (1) {
-			read = serial2002_read(devpriv->tty, 1000);
-			if (read.kind != is_channel || read.index == chan)
-				break;
-		}
-		data[n] = read.value;
-	}
-	return n;
-}
-
-static int serial2002_ao_insn_write(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct serial2002_private *devpriv = dev->private;
-	int n;
-	int chan;
-
-	chan = devpriv->analog_out_mapping[CR_CHAN(insn->chanspec)];
-	for (n = 0; n < insn->n; n++) {
-		struct serial_data write;
-
-		write.kind = is_channel;
-		write.index = chan;
-		write.value = data[n];
-		serial2002_write(devpriv->tty, write);
-		devpriv->ao_readback[chan] = data[n];
-	}
-	return n;
-}
-
-static int serial2002_ao_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct serial2002_private *devpriv = dev->private;
-	int n;
-	int chan = CR_CHAN(insn->chanspec);
-
-	for (n = 0; n < insn->n; n++)
-		data[n] = devpriv->ao_readback[chan];
-
-	return n;
-}
-
-static int serial2002_encoder_insn_read(struct comedi_device *dev,
-					struct comedi_subdevice *s,
-					struct comedi_insn *insn,
-					unsigned int *data)
-{
-	struct serial2002_private *devpriv = dev->private;
-	int n;
-	int chan;
-
-	chan = devpriv->encoder_in_mapping[CR_CHAN(insn->chanspec)];
-	for (n = 0; n < insn->n; n++) {
-		struct serial_data read;
-
-		serial2002_poll_channel(devpriv->tty, chan);
-		while (1) {
-			read = serial2002_read(devpriv->tty, 1000);
-			if (read.kind != is_channel || read.index == chan)
-				break;
-		}
-		data[n] = read.value;
-	}
-	return n;
-}
-
-static int serial2002_attach(struct comedi_device *dev,
-			     struct comedi_devconfig *it)
-{
-	struct serial2002_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	devpriv->port = it->options[0];
-	devpriv->speed = it->options[1];
-
-	ret = comedi_alloc_subdevices(dev, 5);
-	if (ret)
-		return ret;
-
-	/* digital input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 0;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_read	= serial2002_di_insn_read;
-
-	/* digital output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 0;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_write	= serial2002_do_insn_write;
-
-	/* analog input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	s->n_chan	= 0;
-	s->maxdata	= 1;
-	s->range_table	= NULL;
-	s->insn_read	= serial2002_ai_insn_read;
-
-	/* analog output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 0;
-	s->maxdata	= 1;
-	s->range_table	= NULL;
-	s->insn_write	= serial2002_ao_insn_write;
-	s->insn_read	= serial2002_ao_insn_read;
-
-	/* encoder input subdevice */
-	s = &dev->subdevices[4];
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE | SDF_LSAMPL;
-	s->n_chan	= 0;
-	s->maxdata	= 1;
-	s->range_table	= NULL;
-	s->insn_read	= serial2002_encoder_insn_read;
-
-	dev->open	= serial2002_open;
-	dev->close	= serial2002_close;
-
-	return 0;
-}
-
-static void serial2002_detach(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-	int i;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		kfree(s->maxdata_list);
-		kfree(s->range_table_list);
-	}
-}
-
-static struct comedi_driver serial2002_driver = {
-	.driver_name	= "serial2002",
-	.module		= THIS_MODULE,
-	.attach		= serial2002_attach,
-	.detach		= serial2002_detach,
-};
-module_comedi_driver(serial2002_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/ssv_dnp.c b/drivers/staging/comedi/drivers/ssv_dnp.c
deleted file mode 100644
index acc7f3445c58..000000000000
--- a/drivers/staging/comedi/drivers/ssv_dnp.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
-    comedi/drivers/ssv_dnp.c
-    generic comedi driver for SSV Embedded Systems' DIL/Net-PCs
-    Copyright (C) 2001 Robert Schwebel <robert@schwebel.de>
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ssv_dnp
-Description: SSV Embedded Systems DIL/Net-PC
-Author: Robert Schwebel <robert@schwebel.de>
-Devices: [SSV Embedded Systems] DIL/Net-PC 1486 (dnp-1486)
-Status: unknown
-*/
-
-/* include files ----------------------------------------------------------- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-/* Some global definitions: the registers of the DNP ----------------------- */
-/*                                                                           */
-/* For port A and B the mode register has bits corresponding to the output   */
-/* pins, where Bit-N = 0 -> input, Bit-N = 1 -> output. Note that bits       */
-/* 4 to 7 correspond to pin 0..3 for port C data register. Ensure that bits  */
-/* 0..3 remain unchanged! For details about Port C Mode Register see         */
-/* the remarks in dnp_insn_config() below.                                   */
-
-#define CSCIR 0x22		/* Chip Setup and Control Index Register     */
-#define CSCDR 0x23		/* Chip Setup and Control Data Register      */
-#define PAMR  0xa5		/* Port A Mode Register                      */
-#define PADR  0xa9		/* Port A Data Register                      */
-#define PBMR  0xa4		/* Port B Mode Register                      */
-#define PBDR  0xa8		/* Port B Data Register                      */
-#define PCMR  0xa3		/* Port C Mode Register                      */
-#define PCDR  0xa7		/* Port C Data Register                      */
-
-static int dnp_dio_insn_bits(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned int *data)
-{
-	unsigned int mask;
-	unsigned int val;
-
-	/*
-	 * Ports A and B are straight forward: each bit corresponds to an
-	 * output pin with the same order. Port C is different: bits 0...3
-	 * correspond to bits 4...7 of the output register (PCDR).
-	 */
-
-	mask = comedi_dio_update_state(s, data);
-	if (mask) {
-		outb(PADR, CSCIR);
-		outb(s->state & 0xff, CSCDR);
-
-		outb(PBDR, CSCIR);
-		outb((s->state >> 8) & 0xff, CSCDR);
-
-		outb(PCDR, CSCIR);
-		val = inb(CSCDR) & 0x0f;
-		outb(((s->state >> 12) & 0xf0) | val, CSCDR);
-	}
-
-	outb(PADR, CSCIR);
-	val = inb(CSCDR);
-	outb(PBDR, CSCIR);
-	val |= (inb(CSCDR) << 8);
-	outb(PCDR, CSCIR);
-	val |= ((inb(CSCDR) & 0xf0) << 12);
-
-	data[1] = val;
-
-	return insn->n;
-}
-
-static int dnp_dio_insn_config(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int mask;
-	unsigned int val;
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	if (chan < 8) {			/* Port A */
-		mask = 1 << chan;
-		outb(PAMR, CSCIR);
-	} else if (chan < 16) {		/* Port B */
-		mask = 1 << (chan - 8);
-		outb(PBMR, CSCIR);
-	} else {			/* Port C */
-		/*
-		 * We have to pay attention with port C.
-		 * This is the meaning of PCMR:
-		 *   Bit in PCMR:              7 6 5 4 3 2 1 0
-		 *   Corresponding port C pin: d 3 d 2 d 1 d 0   d= don't touch
-		 *
-		 * Multiplication by 2 brings bits into correct position
-		 * for PCMR!
-		 */
-		mask = 1 << ((chan - 16) * 2);
-		outb(PCMR, CSCIR);
-	}
-
-	val = inb(CSCDR);
-	if (data[0] == COMEDI_OUTPUT)
-		val |= mask;
-	else
-		val &= ~mask;
-	outb(val, CSCDR);
-
-	return insn->n;
-}
-
-static int dnp_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret)
-		return ret;
-
-	s = &dev->subdevices[0];
-	/* digital i/o subdevice                                             */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 20;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = dnp_dio_insn_bits;
-	s->insn_config = dnp_dio_insn_config;
-
-	/* We use the I/O ports 0x22,0x23 and 0xa3-0xa9, which are always
-	 * allocated for the primary 8259, so we don't need to allocate them
-	 * ourselves. */
-
-	/* configure all ports as input (default)                            */
-	outb(PAMR, CSCIR);
-	outb(0x00, CSCDR);
-	outb(PBMR, CSCIR);
-	outb(0x00, CSCDR);
-	outb(PCMR, CSCIR);
-	outb((inb(CSCDR) & 0xAA), CSCDR);
-
-	return 0;
-}
-
-static void dnp_detach(struct comedi_device *dev)
-{
-	outb(PAMR, CSCIR);
-	outb(0x00, CSCDR);
-	outb(PBMR, CSCIR);
-	outb(0x00, CSCDR);
-	outb(PCMR, CSCIR);
-	outb((inb(CSCDR) & 0xAA), CSCDR);
-}
-
-static struct comedi_driver dnp_driver = {
-	.driver_name	= "dnp-1486",
-	.module		= THIS_MODULE,
-	.attach		= dnp_attach,
-	.detach		= dnp_detach,
-};
-module_comedi_driver(dnp_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/unioxx5.c b/drivers/staging/comedi/drivers/unioxx5.c
deleted file mode 100644
index 51498b889c6c..000000000000
--- a/drivers/staging/comedi/drivers/unioxx5.c
+++ /dev/null
@@ -1,506 +0,0 @@
-/***************************************************************************
- *                                                                         *
- *  comedi/drivers/unioxx5.c                                               *
- *  Driver for Fastwel UNIOxx-5 (analog and digital i/o) boards.           *
- *                                                                         *
- *  Copyright (C) 2006 Kruchinin Daniil (asgard) [asgard@etersoft.ru]      *
- *                                                                         *
- *  COMEDI - Linux Control and Measurement Device Interface                *
- *  Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org>              *
- *                                                                         *
- *  This program is free software; you can redistribute it and/or modify   *
- *  it under the terms of the GNU General Public License as published by   *
- *  the Free Software Foundation; either version 2 of the License, or      *
- *  (at your option) any later version.                                    *
- *                                                                         *
- *  This program is distributed in the hope that it will be useful,        *
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
- *  GNU General Public License for more details.                           *
- *                                                                         *
- ***************************************************************************/
-/*
-
-Driver: unioxx5
-Description: Driver for Fastwel UNIOxx-5 (analog and digital i/o) boards.
-Author: Kruchinin Daniil (asgard) <asgard@etersoft.ru>
-Status: unknown
-Updated: 2006-10-09
-Devices: [Fastwel] UNIOxx-5 (unioxx5),
-
- This card supports digital and analog I/O. It written for g01
- subdevices only.
- channels range: 0 .. 23 dio channels
- and 0 .. 11 analog modules range
- During attaching unioxx5 module displays modules identifiers
- (see dmesg after comedi_config) in format:
- | [module_number] module_id |
-
-*/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include "../comedidev.h"
-
-#define UNIOXX5_SIZE 0x10
-#define UNIOXX5_SUBDEV_BASE 0xA000	/* base addr of first subdev */
-#define UNIOXX5_SUBDEV_ODDS 0x400
-
-/* modules types */
-#define MODULE_DIGITAL 0
-#define MODULE_OUTPUT_MASK 0x80	/* analog input/output */
-
-/* constants for digital i/o */
-#define UNIOXX5_NUM_OF_CHANS 24
-
-/* constants for analog i/o */
-#define TxBE  0x10		/* transmit buffer enable */
-#define RxCA  0x20		/* 1 receive character available */
-#define Rx2CA 0x40		/* 2 receive character available */
-#define Rx4CA 0x80		/* 4 receive character available */
-
-/* bytes mask errors */
-#define Rx2CA_ERR_MASK 0x04	/* 2 bytes receiving error */
-#define Rx4CA_ERR_MASK 0x08	/* 4 bytes receiving error */
-
-/* channel modes */
-#define ALL_2_INPUT  0		/* config all digital channels to input */
-#define ALL_2_OUTPUT 1		/* config all digital channels to output */
-
-/* 'private' structure for each subdevice */
-struct unioxx5_subd_priv {
-	int usp_iobase;
-	/* 12 modules. each can be 70L or 73L */
-	unsigned char usp_module_type[12];
-	/* for saving previous written value for analog modules */
-	unsigned char usp_extra_data[12][4];
-	unsigned char usp_prev_wr_val[3];	/* previous written value */
-	unsigned char usp_prev_cn_val[3];	/* previous channel value */
-};
-
-static int __unioxx5_define_chan_offset(int chan_num)
-{
-	if (chan_num < 0 || chan_num > 23)
-		return -1;
-
-	return (chan_num >> 3) + 1;
-}
-
-#if 0				/* not used? */
-static void __unioxx5_digital_config(struct comedi_subdevice *s, int mode)
-{
-	struct unioxx5_subd_priv *usp = s->private;
-	struct device *csdev = s->device->class_dev;
-	int i, mask;
-
-	mask = (mode == ALL_2_OUTPUT) ? 0xFF : 0x00;
-	dev_dbg(csdev, "mode = %d\n", mask);
-
-	outb(1, usp->usp_iobase + 0);
-
-	for (i = 0; i < 3; i++)
-		outb(mask, usp->usp_iobase + i);
-
-	outb(0, usp->usp_iobase + 0);
-}
-#endif
-
-/* configure channels for analog i/o (even to output, odd to input) */
-static void __unioxx5_analog_config(struct unioxx5_subd_priv *usp, int channel)
-{
-	int chan_a, chan_b, conf, channel_offset;
-
-	channel_offset = __unioxx5_define_chan_offset(channel);
-	conf = usp->usp_prev_cn_val[channel_offset - 1];
-	chan_a = chan_b = 1;
-
-	/* setting channel A and channel B mask */
-	if (channel % 2 == 0) {
-		chan_a <<= channel & 0x07;
-		chan_b <<= (channel + 1) & 0x07;
-	} else {
-		chan_a <<= (channel - 1) & 0x07;
-		chan_b <<= channel & 0x07;
-	}
-
-	conf |= chan_a;		/* even channel ot output */
-	conf &= ~chan_b;	/* odd channel to input */
-
-	outb(1, usp->usp_iobase + 0);
-	outb(conf, usp->usp_iobase + channel_offset);
-	outb(0, usp->usp_iobase + 0);
-
-	usp->usp_prev_cn_val[channel_offset - 1] = conf;
-}
-
-static int __unioxx5_digital_read(struct comedi_subdevice *s,
-				  unsigned int *data, int channel, int minor)
-{
-	struct unioxx5_subd_priv *usp = s->private;
-	struct device *csdev = s->device->class_dev;
-	int channel_offset, mask = 1 << (channel & 0x07);
-
-	channel_offset = __unioxx5_define_chan_offset(channel);
-	if (channel_offset < 0) {
-		dev_err(csdev,
-			"undefined channel %d. channel range is 0 .. 23\n",
-			channel);
-		return 0;
-	}
-
-	*data = inb(usp->usp_iobase + channel_offset);
-	*data &= mask;
-
-	/* correct the read value to 0 or 1 */
-	if (channel_offset > 1)
-		channel -= 2 << channel_offset;
-	*data >>= channel;
-	return 1;
-}
-
-static int __unioxx5_analog_read(struct comedi_subdevice *s,
-				 unsigned int *data, int channel, int minor)
-{
-	struct unioxx5_subd_priv *usp = s->private;
-	struct device *csdev = s->device->class_dev;
-	int module_no, read_ch;
-	char control;
-
-	module_no = channel / 2;
-	read_ch = channel % 2;	/* depend on type of channel (A or B) */
-
-	/* defining if given module can work on input */
-	if (usp->usp_module_type[module_no] & MODULE_OUTPUT_MASK) {
-		dev_err(csdev,
-			"module in position %d with id 0x%02x is for output only",
-			module_no, usp->usp_module_type[module_no]);
-		return 0;
-	}
-
-	__unioxx5_analog_config(usp, channel);
-	/* sends module number to card(1 .. 12) */
-	outb(module_no + 1, usp->usp_iobase + 5);
-	outb('V', usp->usp_iobase + 6);	/* sends to module (V)erify command */
-	control = inb(usp->usp_iobase);	/* get control register byte */
-
-	/* waits while reading four bytes will be allowed */
-	while (!((control = inb(usp->usp_iobase + 0)) & Rx4CA))
-		;
-
-	/* if four bytes readding error occurs - return 0(false) */
-	if ((control & Rx4CA_ERR_MASK)) {
-		dev_err(csdev, "4 bytes error\n");
-		return 0;
-	}
-
-	if (read_ch)
-		*data = inw(usp->usp_iobase + 6);	/* channel B */
-	else
-		*data = inw(usp->usp_iobase + 4);	/* channel A */
-
-	return 1;
-}
-
-static int __unioxx5_digital_write(struct comedi_subdevice *s,
-				   unsigned int *data, int channel, int minor)
-{
-	struct unioxx5_subd_priv *usp = s->private;
-	struct device *csdev = s->device->class_dev;
-	int channel_offset, val;
-	int mask = 1 << (channel & 0x07);
-
-	channel_offset = __unioxx5_define_chan_offset(channel);
-	if (channel_offset < 0) {
-		dev_err(csdev,
-			"undefined channel %d. channel range is 0 .. 23\n",
-			channel);
-		return 0;
-	}
-
-	/* getting previous written value */
-	val = usp->usp_prev_wr_val[channel_offset - 1];
-
-	if (*data)
-		val |= mask;
-	else
-		val &= ~mask;
-
-	outb(val, usp->usp_iobase + channel_offset);
-	/* saving new written value */
-	usp->usp_prev_wr_val[channel_offset - 1] = val;
-
-	return 1;
-}
-
-static int __unioxx5_analog_write(struct comedi_subdevice *s,
-				  unsigned int *data, int channel, int minor)
-{
-	struct unioxx5_subd_priv *usp = s->private;
-	struct device *csdev = s->device->class_dev;
-	int module, i;
-
-	module = channel / 2;	/* definig module number(0 .. 11) */
-	i = (channel % 2) << 1;	/* depends on type of channel (A or B) */
-
-	/* defining if given module can work on output */
-	if (!(usp->usp_module_type[module] & MODULE_OUTPUT_MASK)) {
-		dev_err(csdev,
-			"module in position %d with id 0x%0x is for input only!\n",
-			module, usp->usp_module_type[module]);
-		return 0;
-	}
-
-	__unioxx5_analog_config(usp, channel);
-	/* saving minor byte */
-	usp->usp_extra_data[module][i++] = (unsigned char)(*data & 0x00FF);
-	/* saving major byte */
-	usp->usp_extra_data[module][i] = (unsigned char)((*data & 0xFF00) >> 8);
-
-	/* while(!((inb(usp->usp_iobase + 0)) & TxBE)); */
-	/* sending module number to card(1 .. 12) */
-	outb(module + 1, usp->usp_iobase + 5);
-	outb('W', usp->usp_iobase + 6);	/* sends (W)rite command to module */
-
-	/* sending for bytes to module(one byte per cycle iteration) */
-	for (i = 0; i < 4; i++) {
-		while (!((inb(usp->usp_iobase + 0)) & TxBE))
-			;	/* waits while writing will be allowed */
-		outb(usp->usp_extra_data[module][i], usp->usp_iobase + 6);
-	}
-
-	return 1;
-}
-
-static int unioxx5_subdev_read(struct comedi_device *dev,
-			       struct comedi_subdevice *subdev,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	struct unioxx5_subd_priv *usp = subdev->private;
-	int channel, type;
-
-	channel = CR_CHAN(insn->chanspec);
-	/* defining module type(analog or digital) */
-	type = usp->usp_module_type[channel / 2];
-
-	if (type == MODULE_DIGITAL) {
-		if (!__unioxx5_digital_read(subdev, data, channel, dev->minor))
-			return -1;
-	} else {
-		if (!__unioxx5_analog_read(subdev, data, channel, dev->minor))
-			return -1;
-	}
-
-	return 1;
-}
-
-static int unioxx5_subdev_write(struct comedi_device *dev,
-				struct comedi_subdevice *subdev,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	struct unioxx5_subd_priv *usp = subdev->private;
-	int channel, type;
-
-	channel = CR_CHAN(insn->chanspec);
-	/* defining module type(analog or digital) */
-	type = usp->usp_module_type[channel / 2];
-
-	if (type == MODULE_DIGITAL) {
-		if (!__unioxx5_digital_write(subdev, data, channel, dev->minor))
-			return -1;
-	} else {
-		if (!__unioxx5_analog_write(subdev, data, channel, dev->minor))
-			return -1;
-	}
-
-	return 1;
-}
-
-/* for digital modules only */
-static int unioxx5_insn_config(struct comedi_device *dev,
-			       struct comedi_subdevice *subdev,
-			       struct comedi_insn *insn, unsigned int *data)
-{
-	int channel_offset, flags, channel = CR_CHAN(insn->chanspec), type;
-	struct unioxx5_subd_priv *usp = subdev->private;
-	int mask = 1 << (channel & 0x07);
-
-	type = usp->usp_module_type[channel / 2];
-
-	if (type != MODULE_DIGITAL) {
-		dev_err(dev->class_dev,
-			"channel configuration accessible only for digital modules\n");
-		return -1;
-	}
-
-	channel_offset = __unioxx5_define_chan_offset(channel);
-	if (channel_offset < 0) {
-		dev_err(dev->class_dev,
-			"undefined channel %d. channel range is 0 .. 23\n",
-			channel);
-		return -1;
-	}
-
-	/* gets previously written value */
-	flags = usp->usp_prev_cn_val[channel_offset - 1];
-
-	switch (*data) {
-	case COMEDI_INPUT:
-		flags &= ~mask;
-		break;
-	case COMEDI_OUTPUT:
-		flags |= mask;
-		break;
-	default:
-		dev_err(dev->class_dev, "unknown flag\n");
-		return -1;
-	}
-
-	/*                                                        *\
-	 * sets channels buffer to 1(after this we are allowed to *
-	 * change channel type on input or output)                *
-	 \*                                                        */
-	outb(1, usp->usp_iobase + 0);
-	/* changes type of _one_ channel */
-	outb(flags, usp->usp_iobase + channel_offset);
-	/* sets channels bank to 0(allows directly input/output) */
-	outb(0, usp->usp_iobase + 0);
-	/* saves written value */
-	usp->usp_prev_cn_val[channel_offset - 1] = flags;
-
-	return 0;
-}
-
-/* initializing subdevice with given address */
-static int __unioxx5_subdev_init(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 int iobase)
-{
-	struct unioxx5_subd_priv *usp;
-	int i, to, ndef_flag = 0;
-	int ret;
-
-	usp = comedi_alloc_spriv(s, sizeof(*usp));
-	if (!usp)
-		return -ENOMEM;
-
-	ret = __comedi_request_region(dev, iobase, UNIOXX5_SIZE);
-	if (ret)
-		return ret;
-	usp->usp_iobase = iobase;
-
-	/* defining modules types */
-	for (i = 0; i < 12; i++) {
-		to = 10000;
-
-		__unioxx5_analog_config(usp, i * 2);
-		/* sends channel number to card */
-		outb(i + 1, iobase + 5);
-		outb('H', iobase + 6);	/* requests EEPROM world */
-		while (!(inb(iobase + 0) & TxBE))
-			;	/* waits while writing will be allowed */
-		outb(0, iobase + 6);
-
-		/* waits while reading of two bytes will be allowed */
-		while (!(inb(iobase + 0) & Rx2CA)) {
-			if (--to <= 0) {
-				ndef_flag = 1;
-				break;
-			}
-		}
-
-		if (ndef_flag) {
-			usp->usp_module_type[i] = 0;
-			ndef_flag = 0;
-		} else {
-			usp->usp_module_type[i] = inb(iobase + 6);
-		}
-
-		udelay(1);
-	}
-
-	/* initial subdevice for digital or analog i/o */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = UNIOXX5_NUM_OF_CHANS;
-	s->maxdata = 0xFFF;
-	s->range_table = &range_digital;
-	s->insn_read = unioxx5_subdev_read;
-	s->insn_write = unioxx5_subdev_write;
-	/* for digital modules only!!! */
-	s->insn_config = unioxx5_insn_config;
-
-	return 0;
-}
-
-static int unioxx5_attach(struct comedi_device *dev,
-			  struct comedi_devconfig *it)
-{
-	struct comedi_subdevice *s;
-	int iobase, i, n_subd;
-	int id, num, ba;
-	int ret;
-
-	iobase = it->options[0];
-
-	dev->iobase = iobase;
-	iobase += UNIOXX5_SUBDEV_BASE;
-	n_subd = 0;
-
-	/* getting number of subdevices with types 'g01' */
-	for (i = 0, ba = iobase; i < 4; i++, ba += UNIOXX5_SUBDEV_ODDS) {
-		id = inb(ba + 0xE);
-		num = inb(ba + 0xF);
-
-		if (id != 'g' || num != 1)
-			continue;
-
-		n_subd++;
-	}
-
-	/* unioxx5 can has from two to four subdevices */
-	if (n_subd < 2) {
-		dev_err(dev->class_dev,
-			"your card must has at least 2 'g01' subdevices\n");
-		return -1;
-	}
-
-	ret = comedi_alloc_subdevices(dev, n_subd);
-	if (ret)
-		return ret;
-
-	/* initializing each of for same subdevices */
-	for (i = 0; i < n_subd; i++, iobase += UNIOXX5_SUBDEV_ODDS) {
-		s = &dev->subdevices[i];
-		ret = __unioxx5_subdev_init(dev, s, iobase);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static void unioxx5_detach(struct comedi_device *dev)
-{
-	struct comedi_subdevice *s;
-	struct unioxx5_subd_priv *spriv;
-	int i;
-
-	for (i = 0; i < dev->n_subdevices; i++) {
-		s = &dev->subdevices[i];
-		spriv = s->private;
-		if (spriv && spriv->usp_iobase)
-			release_region(spriv->usp_iobase, UNIOXX5_SIZE);
-	}
-}
-
-static struct comedi_driver unioxx5_driver = {
-	.driver_name	= "unioxx5",
-	.module		= THIS_MODULE,
-	.attach		= unioxx5_attach,
-	.detach		= unioxx5_detach,
-};
-module_comedi_driver(unioxx5_driver);
-
-MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
deleted file mode 100644
index ced05e581620..000000000000
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ /dev/null
@@ -1,1751 +0,0 @@
-/*
- * usbdux.c
- * Copyright (C) 2003-2014 Bernd Porr, mail@berndporr.me.uk
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: usbdux
- * Description: University of Stirling USB DAQ & INCITE Technology Limited
- * Devices: [ITL] USB-DUX (usbdux)
- * Author: Bernd Porr <mail@berndporr.me.uk>
- * Updated: 10 Oct 2014
- * Status: Stable
- *
- * Connection scheme for the counter at the digital port:
- * 0=/CLK0, 1=UP/DOWN0, 2=RESET0, 4=/CLK1, 5=UP/DOWN1, 6=RESET1.
- * The sampling rate of the counter is approximately 500Hz.
- *
- * Note that under USB2.0 the length of the channel list determines
- * the max sampling rate. If you sample only one channel you get 8kHz
- * sampling rate. If you sample two channels you get 4kHz and so on.
- */
-
-/*
- * I must give credit here to Chris Baugher who
- * wrote the driver for AT-MIO-16d. I used some parts of this
- * driver. I also must give credits to David Brownell
- * who supported me with the USB development.
- *
- * Bernd Porr
- *
- *
- * Revision history:
- * 0.94: D/A output should work now with any channel list combinations
- * 0.95: .owner commented out for kernel vers below 2.4.19
- *       sanity checks in ai/ao_cmd
- * 0.96: trying to get it working with 2.6, moved all memory alloc to comedi's
- *       attach final USB IDs
- *       moved memory allocation completely to the corresponding comedi
- *       functions firmware upload is by fxload and no longer by comedi (due to
- *       enumeration)
- * 0.97: USB IDs received, adjusted table
- * 0.98: SMP, locking, memory alloc: moved all usb memory alloc
- *       to the usb subsystem and moved all comedi related memory
- *       alloc to comedi.
- *       | kernel | registration | usbdux-usb | usbdux-comedi | comedi |
- * 0.99: USB 2.0: changed protocol to isochronous transfer
- *                IRQ transfer is too buggy and too risky in 2.0
- *                for the high speed ISO transfer is now a working version
- *                available
- * 0.99b: Increased the iso transfer buffer for high sp.to 10 buffers. Some VIA
- *        chipsets miss out IRQs. Deeper buffering is needed.
- * 1.00: full USB 2.0 support for the A/D converter. Now: max 8kHz sampling
- *       rate.
- *       Firmware vers 1.00 is needed for this.
- *       Two 16 bit up/down/reset counter with a sampling rate of 1kHz
- *       And loads of cleaning up, in particular streamlining the
- *       bulk transfers.
- * 1.1:  moved EP4 transfers to EP1 to make space for a PWM output on EP4
- * 1.2:  added PWM support via EP4
- * 2.0:  PWM seems to be stable and is not interfering with the other functions
- * 2.1:  changed PWM API
- * 2.2:  added firmware kernel request to fix an udev problem
- * 2.3:  corrected a bug in bulk timeouts which were far too short
- * 2.4:  fixed a bug which causes the driver to hang when it ran out of data.
- *       Thanks to Jan-Matthias Braun and Ian to spot the bug and fix it.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/fcntl.h>
-#include <linux/compiler.h>
-
-#include "../comedi_usb.h"
-
-/* constants for firmware upload and download */
-#define USBDUX_FIRMWARE		"usbdux_firmware.bin"
-#define USBDUX_FIRMWARE_MAX_LEN	0x2000
-#define USBDUX_FIRMWARE_CMD	0xa0
-#define VENDOR_DIR_IN		0xc0
-#define VENDOR_DIR_OUT		0x40
-#define USBDUX_CPU_CS		0xe600
-
-/* usbdux bulk transfer commands */
-#define USBDUX_CMD_MULT_AI	0
-#define USBDUX_CMD_AO		1
-#define USBDUX_CMD_DIO_CFG	2
-#define USBDUX_CMD_DIO_BITS	3
-#define USBDUX_CMD_SINGLE_AI	4
-#define USBDUX_CMD_TIMER_RD	5
-#define USBDUX_CMD_TIMER_WR	6
-#define USBDUX_CMD_PWM_ON	7
-#define USBDUX_CMD_PWM_OFF	8
-
-/* timeout for the USB-transfer in ms */
-#define BULK_TIMEOUT		1000
-
-/* 300Hz max frequ under PWM */
-#define MIN_PWM_PERIOD  ((long)(1E9/300))
-
-/* Default PWM frequency */
-#define PWM_DEFAULT_PERIOD ((long)(1E9/100))
-
-/* Size of one A/D value */
-#define SIZEADIN          ((sizeof(uint16_t)))
-
-/*
- * Size of the input-buffer IN BYTES
- * Always multiple of 8 for 8 microframes which is needed in the highspeed mode
- */
-#define SIZEINBUF         ((8*SIZEADIN))
-
-/* 16 bytes. */
-#define SIZEINSNBUF       16
-
-/* size of one value for the D/A converter: channel and value */
-#define SIZEDAOUT          ((sizeof(uint8_t)+sizeof(uint16_t)))
-
-/*
- * Size of the output-buffer in bytes
- * Actually only the first 4 triplets are used but for the
- * high speed mode we need to pad it to 8 (microframes).
- */
-#define SIZEOUTBUF         ((8*SIZEDAOUT))
-
-/*
- * Size of the buffer for the dux commands: just now max size is determined
- * by the analogue out + command byte + panic bytes...
- */
-#define SIZEOFDUXBUFFER    ((8*SIZEDAOUT+2))
-
-/* Number of in-URBs which receive the data: min=2 */
-#define NUMOFINBUFFERSFULL     5
-
-/* Number of out-URBs which send the data: min=2 */
-#define NUMOFOUTBUFFERSFULL    5
-
-/* Number of in-URBs which receive the data: min=5 */
-/* must have more buffers due to buggy USB ctr */
-#define NUMOFINBUFFERSHIGH     10
-
-/* Number of out-URBs which send the data: min=5 */
-/* must have more buffers due to buggy USB ctr */
-#define NUMOFOUTBUFFERSHIGH    10
-
-/* number of retries to get the right dux command */
-#define RETRIES 10
-
-static const struct comedi_lrange range_usbdux_ai_range = {
-	4, {
-		BIP_RANGE(4.096),
-		BIP_RANGE(4.096 / 2),
-		UNI_RANGE(4.096),
-		UNI_RANGE(4.096 / 2)
-	}
-};
-
-static const struct comedi_lrange range_usbdux_ao_range = {
-	2, {
-		BIP_RANGE(4.096),
-		UNI_RANGE(4.096)
-	}
-};
-
-struct usbdux_private {
-	/* actual number of in-buffers */
-	int n_ai_urbs;
-	/* actual number of out-buffers */
-	int n_ao_urbs;
-	/* ISO-transfer handling: buffers */
-	struct urb **ai_urbs;
-	struct urb **ao_urbs;
-	/* pwm-transfer handling */
-	struct urb *pwm_urb;
-	/* PWM period */
-	unsigned int pwm_period;
-	/* PWM internal delay for the GPIF in the FX2 */
-	uint8_t pwm_delay;
-	/* size of the PWM buffer which holds the bit pattern */
-	int pwm_buf_sz;
-	/* input buffer for the ISO-transfer */
-	__le16 *in_buf;
-	/* input buffer for single insn */
-	__le16 *insn_buf;
-
-	unsigned int high_speed:1;
-	unsigned int ai_cmd_running:1;
-	unsigned int ao_cmd_running:1;
-	unsigned int pwm_cmd_running:1;
-
-	/* time between samples in units of the timer */
-	unsigned int ai_timer;
-	unsigned int ao_timer;
-	/* counter between aquisitions */
-	unsigned int ai_counter;
-	unsigned int ao_counter;
-	/* interval in frames/uframes */
-	unsigned int ai_interval;
-	/* commands */
-	uint8_t *dux_commands;
-	struct semaphore sem;
-};
-
-static void usbdux_unlink_urbs(struct urb **urbs, int num_urbs)
-{
-	int i;
-
-	for (i = 0; i < num_urbs; i++)
-		usb_kill_urb(urbs[i]);
-}
-
-static void usbdux_ai_stop(struct comedi_device *dev, int do_unlink)
-{
-	struct usbdux_private *devpriv = dev->private;
-
-	if (do_unlink && devpriv->ai_urbs)
-		usbdux_unlink_urbs(devpriv->ai_urbs, devpriv->n_ai_urbs);
-
-	devpriv->ai_cmd_running = 0;
-}
-
-static int usbdux_ai_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct usbdux_private *devpriv = dev->private;
-
-	/* prevent other CPUs from submitting new commands just now */
-	down(&devpriv->sem);
-	/* unlink only if the urb really has been submitted */
-	usbdux_ai_stop(dev, devpriv->ai_cmd_running);
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-static void usbduxsub_ai_handle_urb(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct urb *urb)
-{
-	struct usbdux_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	int ret;
-	int i;
-
-	devpriv->ai_counter--;
-	if (devpriv->ai_counter == 0) {
-		devpriv->ai_counter = devpriv->ai_timer;
-
-		/* get the data from the USB bus and hand it over to comedi */
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			unsigned int range = CR_RANGE(cmd->chanlist[i]);
-			uint16_t val = le16_to_cpu(devpriv->in_buf[i]);
-
-			/* bipolar data is two's-complement */
-			if (comedi_range_is_bipolar(s, range))
-				val ^= ((s->maxdata + 1) >> 1);
-
-			/* transfer data */
-			if (!comedi_buf_write_samples(s, &val, 1))
-				return;
-		}
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg)
-			async->events |= COMEDI_CB_EOA;
-	}
-
-	/* if command is still running, resubmit urb */
-	if (!(async->events & COMEDI_CB_CANCEL_MASK)) {
-		urb->dev = comedi_to_usb_dev(dev);
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret < 0) {
-			dev_err(dev->class_dev,
-				"urb resubmit failed in int-context! err=%d\n",
-				ret);
-			if (ret == -EL2NSYNC)
-				dev_err(dev->class_dev,
-					"buggy USB host controller or bug in IRQ handler!\n");
-			async->events |= COMEDI_CB_ERROR;
-		}
-	}
-}
-
-static void usbduxsub_ai_isoc_irq(struct urb *urb)
-{
-	struct comedi_device *dev = urb->context;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct usbdux_private *devpriv = dev->private;
-
-	/* exit if not running a command, do not resubmit urb */
-	if (!devpriv->ai_cmd_running)
-		return;
-
-	switch (urb->status) {
-	case 0:
-		/* copy the result in the transfer buffer */
-		memcpy(devpriv->in_buf, urb->transfer_buffer, SIZEINBUF);
-		usbduxsub_ai_handle_urb(dev, s, urb);
-		break;
-
-	case -EILSEQ:
-		/*
-		 * error in the ISOchronous data
-		 * we don't copy the data into the transfer buffer
-		 * and recycle the last data byte
-		 */
-		dev_dbg(dev->class_dev, "CRC error in ISO IN stream\n");
-		usbduxsub_ai_handle_urb(dev, s, urb);
-		break;
-
-	case -ECONNRESET:
-	case -ENOENT:
-	case -ESHUTDOWN:
-	case -ECONNABORTED:
-		/* after an unlink command, unplug, ... etc */
-		async->events |= COMEDI_CB_ERROR;
-		break;
-
-	default:
-		/* a real error */
-		dev_err(dev->class_dev,
-			"Non-zero urb status received in ai intr context: %d\n",
-			urb->status);
-		async->events |= COMEDI_CB_ERROR;
-		break;
-	}
-
-	/*
-	 * comedi_handle_events() cannot be used in this driver. The (*cancel)
-	 * operation would unlink the urb.
-	 */
-	if (async->events & COMEDI_CB_CANCEL_MASK)
-		usbdux_ai_stop(dev, 0);
-
-	comedi_event(dev, s);
-}
-
-static void usbdux_ao_stop(struct comedi_device *dev, int do_unlink)
-{
-	struct usbdux_private *devpriv = dev->private;
-
-	if (do_unlink && devpriv->ao_urbs)
-		usbdux_unlink_urbs(devpriv->ao_urbs, devpriv->n_ao_urbs);
-
-	devpriv->ao_cmd_running = 0;
-}
-
-static int usbdux_ao_cancel(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct usbdux_private *devpriv = dev->private;
-
-	/* prevent other CPUs from submitting a command just now */
-	down(&devpriv->sem);
-	/* unlink only if it is really running */
-	usbdux_ao_stop(dev, devpriv->ao_cmd_running);
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-static void usbduxsub_ao_handle_urb(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct urb *urb)
-{
-	struct usbdux_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	uint8_t *datap;
-	int ret;
-	int i;
-
-	devpriv->ao_counter--;
-	if (devpriv->ao_counter == 0) {
-		devpriv->ao_counter = devpriv->ao_timer;
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg) {
-			async->events |= COMEDI_CB_EOA;
-			return;
-		}
-
-		/* transmit data to the USB bus */
-		datap = urb->transfer_buffer;
-		*datap++ = cmd->chanlist_len;
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-			unsigned short val;
-
-			if (!comedi_buf_read_samples(s, &val, 1)) {
-				dev_err(dev->class_dev, "buffer underflow\n");
-				async->events |= COMEDI_CB_OVERFLOW;
-				return;
-			}
-
-			/* pointer to the DA */
-			*datap++ = val & 0xff;
-			*datap++ = (val >> 8) & 0xff;
-			*datap++ = chan << 6;
-			s->readback[chan] = val;
-		}
-	}
-
-	/* if command is still running, resubmit urb for BULK transfer */
-	if (!(async->events & COMEDI_CB_CANCEL_MASK)) {
-		urb->transfer_buffer_length = SIZEOUTBUF;
-		urb->dev = comedi_to_usb_dev(dev);
-		urb->status = 0;
-		if (devpriv->high_speed)
-			urb->interval = 8;	/* uframes */
-		else
-			urb->interval = 1;	/* frames */
-		urb->number_of_packets = 1;
-		urb->iso_frame_desc[0].offset = 0;
-		urb->iso_frame_desc[0].length = SIZEOUTBUF;
-		urb->iso_frame_desc[0].status = 0;
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret < 0) {
-			dev_err(dev->class_dev,
-				"ao urb resubm failed in int-cont. ret=%d",
-				ret);
-			if (ret == -EL2NSYNC)
-				dev_err(dev->class_dev,
-					"buggy USB host controller or bug in IRQ handling!\n");
-			async->events |= COMEDI_CB_ERROR;
-		}
-	}
-}
-
-static void usbduxsub_ao_isoc_irq(struct urb *urb)
-{
-	struct comedi_device *dev = urb->context;
-	struct comedi_subdevice *s = dev->write_subdev;
-	struct comedi_async *async = s->async;
-	struct usbdux_private *devpriv = dev->private;
-
-	/* exit if not running a command, do not resubmit urb */
-	if (!devpriv->ao_cmd_running)
-		return;
-
-	switch (urb->status) {
-	case 0:
-		usbduxsub_ao_handle_urb(dev, s, urb);
-		break;
-
-	case -ECONNRESET:
-	case -ENOENT:
-	case -ESHUTDOWN:
-	case -ECONNABORTED:
-		/* after an unlink command, unplug, ... etc */
-		async->events |= COMEDI_CB_ERROR;
-		break;
-
-	default:
-		/* a real error */
-		dev_err(dev->class_dev,
-			"Non-zero urb status received in ao intr context: %d\n",
-			urb->status);
-		async->events |= COMEDI_CB_ERROR;
-		break;
-	}
-
-	/*
-	 * comedi_handle_events() cannot be used in this driver. The (*cancel)
-	 * operation would unlink the urb.
-	 */
-	if (async->events & COMEDI_CB_CANCEL_MASK)
-		usbdux_ao_stop(dev, 0);
-
-	comedi_event(dev, s);
-}
-
-static int usbdux_submit_urbs(struct comedi_device *dev,
-			      struct urb **urbs, int num_urbs,
-			      int input_urb)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbdux_private *devpriv = dev->private;
-	struct urb *urb;
-	int ret;
-	int i;
-
-	/* Submit all URBs and start the transfer on the bus */
-	for (i = 0; i < num_urbs; i++) {
-		urb = urbs[i];
-
-		/* in case of a resubmission after an unlink... */
-		if (input_urb)
-			urb->interval = devpriv->ai_interval;
-		urb->context = dev;
-		urb->dev = usb;
-		urb->status = 0;
-		urb->transfer_flags = URB_ISO_ASAP;
-
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret)
-			return ret;
-	}
-	return 0;
-}
-
-static int usbdux_ai_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	struct usbdux_private *this_usbduxsub = dev->private;
-	int err = 0, i;
-	unsigned int tmp_timer;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		if (this_usbduxsub->high_speed) {
-			/*
-			 * In high speed mode microframes are possible.
-			 * However, during one microframe we can roughly
-			 * sample one channel. Thus, the more channels
-			 * are in the channel list the more time we need.
-			 */
-			i = 1;
-			/* find a power of 2 for the number of channels */
-			while (i < (cmd->chanlist_len))
-				i = i * 2;
-
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    1000000 / 8 * i);
-			/* now calc the real sampling rate with all the
-			 * rounding errors */
-			tmp_timer =
-			    ((unsigned int)(cmd->scan_begin_arg / 125000)) *
-			    125000;
-		} else {
-			/* full speed */
-			/* 1kHz scans every USB frame */
-			err |= comedi_check_trigger_arg_min(&cmd->
-							    scan_begin_arg,
-							    1000000);
-			/*
-			 * calc the real sampling rate with the rounding errors
-			 */
-			tmp_timer = ((unsigned int)(cmd->scan_begin_arg /
-						   1000000)) * 1000000;
-		}
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg,
-						   tmp_timer);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	return 0;
-}
-
-/*
- * creates the ADC command for the MAX1271
- * range is the range value from comedi
- */
-static uint8_t create_adc_command(unsigned int chan, unsigned int range)
-{
-	uint8_t p = (range <= 1);
-	uint8_t r = ((range % 2) == 0);
-
-	return (chan << 4) | ((p == 1) << 2) | ((r == 1) << 3);
-}
-
-static int send_dux_commands(struct comedi_device *dev, unsigned int cmd_type)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbdux_private *devpriv = dev->private;
-	int nsent;
-
-	devpriv->dux_commands[0] = cmd_type;
-
-	return usb_bulk_msg(usb, usb_sndbulkpipe(usb, 1),
-			    devpriv->dux_commands, SIZEOFDUXBUFFER,
-			    &nsent, BULK_TIMEOUT);
-}
-
-static int receive_dux_commands(struct comedi_device *dev, unsigned int command)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbdux_private *devpriv = dev->private;
-	int ret;
-	int nrec;
-	int i;
-
-	for (i = 0; i < RETRIES; i++) {
-		ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, 8),
-				   devpriv->insn_buf, SIZEINSNBUF,
-				   &nrec, BULK_TIMEOUT);
-		if (ret < 0)
-			return ret;
-		if (le16_to_cpu(devpriv->insn_buf[0]) == command)
-			return ret;
-	}
-	/* command not received */
-	return -EFAULT;
-}
-
-static int usbdux_ai_inttrig(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     unsigned int trig_num)
-{
-	struct usbdux_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	down(&devpriv->sem);
-
-	if (!devpriv->ai_cmd_running) {
-		devpriv->ai_cmd_running = 1;
-		ret = usbdux_submit_urbs(dev, devpriv->ai_urbs,
-					 devpriv->n_ai_urbs, 1);
-		if (ret < 0) {
-			devpriv->ai_cmd_running = 0;
-			goto ai_trig_exit;
-		}
-		s->async->inttrig = NULL;
-	} else {
-		ret = -EBUSY;
-	}
-
-ai_trig_exit:
-	up(&devpriv->sem);
-	return ret;
-}
-
-static int usbdux_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct usbdux_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int len = cmd->chanlist_len;
-	int ret = -EBUSY;
-	int i;
-
-	/* block other CPUs from starting an ai_cmd */
-	down(&devpriv->sem);
-
-	if (devpriv->ai_cmd_running)
-		goto ai_cmd_exit;
-
-	devpriv->dux_commands[1] = len;
-	for (i = 0; i < len; ++i) {
-		unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-		unsigned int range = CR_RANGE(cmd->chanlist[i]);
-
-		devpriv->dux_commands[i + 2] = create_adc_command(chan, range);
-	}
-
-	ret = send_dux_commands(dev, USBDUX_CMD_MULT_AI);
-	if (ret < 0)
-		goto ai_cmd_exit;
-
-	if (devpriv->high_speed) {
-		/*
-		 * every channel gets a time window of 125us. Thus, if we
-		 * sample all 8 channels we need 1ms. If we sample only one
-		 * channel we need only 125us
-		 */
-		devpriv->ai_interval = 1;
-		/* find a power of 2 for the interval */
-		while (devpriv->ai_interval < len)
-			devpriv->ai_interval *= 2;
-
-		devpriv->ai_timer = cmd->scan_begin_arg /
-				    (125000 * devpriv->ai_interval);
-	} else {
-		/* interval always 1ms */
-		devpriv->ai_interval = 1;
-		devpriv->ai_timer = cmd->scan_begin_arg / 1000000;
-	}
-	if (devpriv->ai_timer < 1) {
-		ret = -EINVAL;
-		goto ai_cmd_exit;
-	}
-
-	devpriv->ai_counter = devpriv->ai_timer;
-
-	if (cmd->start_src == TRIG_NOW) {
-		/* enable this acquisition operation */
-		devpriv->ai_cmd_running = 1;
-		ret = usbdux_submit_urbs(dev, devpriv->ai_urbs,
-					 devpriv->n_ai_urbs, 1);
-		if (ret < 0) {
-			devpriv->ai_cmd_running = 0;
-			/* fixme: unlink here?? */
-			goto ai_cmd_exit;
-		}
-		s->async->inttrig = NULL;
-	} else {
-		/* TRIG_INT */
-		/* don't enable the acquision operation */
-		/* wait for an internal signal */
-		s->async->inttrig = usbdux_ai_inttrig;
-	}
-
-ai_cmd_exit:
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-/* Mode 0 is used to get a single conversion on demand */
-static int usbdux_ai_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct usbdux_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	unsigned int val;
-	int ret = -EBUSY;
-	int i;
-
-	down(&devpriv->sem);
-
-	if (devpriv->ai_cmd_running)
-		goto ai_read_exit;
-
-	/* set command for the first channel */
-	devpriv->dux_commands[1] = create_adc_command(chan, range);
-
-	/* adc commands */
-	ret = send_dux_commands(dev, USBDUX_CMD_SINGLE_AI);
-	if (ret < 0)
-		goto ai_read_exit;
-
-	for (i = 0; i < insn->n; i++) {
-		ret = receive_dux_commands(dev, USBDUX_CMD_SINGLE_AI);
-		if (ret < 0)
-			goto ai_read_exit;
-
-		val = le16_to_cpu(devpriv->insn_buf[1]);
-
-		/* bipolar data is two's-complement */
-		if (comedi_range_is_bipolar(s, range))
-			val ^= ((s->maxdata + 1) >> 1);
-
-		data[i] = val;
-	}
-
-ai_read_exit:
-	up(&devpriv->sem);
-
-	return ret ? ret : insn->n;
-}
-
-static int usbdux_ao_insn_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct usbdux_private *devpriv = dev->private;
-	int ret;
-
-	down(&devpriv->sem);
-	ret = comedi_readback_insn_read(dev, s, insn, data);
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int usbdux_ao_insn_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct usbdux_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int val = s->readback[chan];
-	__le16 *p = (__le16 *)&devpriv->dux_commands[2];
-	int ret = -EBUSY;
-	int i;
-
-	down(&devpriv->sem);
-
-	if (devpriv->ao_cmd_running)
-		goto ao_write_exit;
-
-	/* number of channels: 1 */
-	devpriv->dux_commands[1] = 1;
-	/* channel number */
-	devpriv->dux_commands[4] = chan << 6;
-
-	for (i = 0; i < insn->n; i++) {
-		val = data[i];
-
-		/* one 16 bit value */
-		*p = cpu_to_le16(val);
-
-		ret = send_dux_commands(dev, USBDUX_CMD_AO);
-		if (ret < 0)
-			goto ao_write_exit;
-
-		s->readback[chan] = val;
-	}
-
-ao_write_exit:
-	up(&devpriv->sem);
-
-	return ret ? ret : insn->n;
-}
-
-static int usbdux_ao_inttrig(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     unsigned int trig_num)
-{
-	struct usbdux_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	down(&devpriv->sem);
-
-	if (!devpriv->ao_cmd_running) {
-		devpriv->ao_cmd_running = 1;
-		ret = usbdux_submit_urbs(dev, devpriv->ao_urbs,
-					 devpriv->n_ao_urbs, 0);
-		if (ret < 0) {
-			devpriv->ao_cmd_running = 0;
-			goto ao_trig_exit;
-		}
-		s->async->inttrig = NULL;
-	} else {
-		ret = -EBUSY;
-	}
-
-ao_trig_exit:
-	up(&devpriv->sem);
-	return ret;
-}
-
-static int usbdux_ao_cmdtest(struct comedi_device *dev,
-			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
-{
-	struct usbdux_private *this_usbduxsub = dev->private;
-	int err = 0;
-	unsigned int flags;
-
-	if (!this_usbduxsub)
-		return -EFAULT;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-
-	if (0) {		/* (this_usbduxsub->high_speed) */
-		/* the sampling rate is set by the coversion rate */
-		flags = TRIG_FOLLOW;
-	} else {
-		/* start a new scan (output at once) with a timer */
-		flags = TRIG_TIMER;
-	}
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, flags);
-
-	if (0) {		/* (this_usbduxsub->high_speed) */
-		/*
-		 * in usb-2.0 only one conversion it transmitted
-		 * but with 8kHz/n
-		 */
-		flags = TRIG_TIMER;
-	} else {
-		/*
-		 * all conversion events happen simultaneously with
-		 * a rate of 1kHz/n
-		 */
-		flags = TRIG_NOW;
-	}
-	err |= comedi_check_trigger_src(&cmd->convert_src, flags);
-
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_FOLLOW)	/* internal trigger */
-		err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
-
-	if (cmd->scan_begin_src == TRIG_TIMER) {
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    1000000);
-	}
-
-	/* not used now, is for later use */
-	if (cmd->convert_src == TRIG_TIMER)
-		err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 125000);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	return 0;
-}
-
-static int usbdux_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
-{
-	struct usbdux_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret = -EBUSY;
-
-	down(&devpriv->sem);
-
-	if (devpriv->ao_cmd_running)
-		goto ao_cmd_exit;
-
-	/* we count in steps of 1ms (125us) */
-	/* 125us mode not used yet */
-	if (0) {		/* (devpriv->high_speed) */
-		/* 125us */
-		/* timing of the conversion itself: every 125 us */
-		devpriv->ao_timer = cmd->convert_arg / 125000;
-	} else {
-		/* 1ms */
-		/* timing of the scan: we get all channels at once */
-		devpriv->ao_timer = cmd->scan_begin_arg / 1000000;
-		if (devpriv->ao_timer < 1) {
-			ret = -EINVAL;
-			goto ao_cmd_exit;
-		}
-	}
-
-	devpriv->ao_counter = devpriv->ao_timer;
-
-	if (cmd->start_src == TRIG_NOW) {
-		/* enable this acquisition operation */
-		devpriv->ao_cmd_running = 1;
-		ret = usbdux_submit_urbs(dev, devpriv->ao_urbs,
-					 devpriv->n_ao_urbs, 0);
-		if (ret < 0) {
-			devpriv->ao_cmd_running = 0;
-			/* fixme: unlink here?? */
-			goto ao_cmd_exit;
-		}
-		s->async->inttrig = NULL;
-	} else {
-		/* TRIG_INT */
-		/* submit the urbs later */
-		/* wait for an internal signal */
-		s->async->inttrig = usbdux_ao_inttrig;
-	}
-
-ao_cmd_exit:
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int usbdux_dio_insn_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	/*
-	 * We don't tell the firmware here as it would take 8 frames
-	 * to submit the information. We do it in the insn_bits.
-	 */
-	return insn->n;
-}
-
-static int usbdux_dio_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct usbdux_private *devpriv = dev->private;
-	int ret;
-
-	down(&devpriv->sem);
-
-	comedi_dio_update_state(s, data);
-
-	/* Always update the hardware. See the (*insn_config). */
-	devpriv->dux_commands[1] = s->io_bits;
-	devpriv->dux_commands[2] = s->state;
-
-	/*
-	 * This command also tells the firmware to return
-	 * the digital input lines.
-	 */
-	ret = send_dux_commands(dev, USBDUX_CMD_DIO_BITS);
-	if (ret < 0)
-		goto dio_exit;
-	ret = receive_dux_commands(dev, USBDUX_CMD_DIO_BITS);
-	if (ret < 0)
-		goto dio_exit;
-
-	data[1] = le16_to_cpu(devpriv->insn_buf[1]);
-
-dio_exit:
-	up(&devpriv->sem);
-
-	return ret ? ret : insn->n;
-}
-
-static int usbdux_counter_read(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn,
-			       unsigned int *data)
-{
-	struct usbdux_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int ret = 0;
-	int i;
-
-	down(&devpriv->sem);
-
-	for (i = 0; i < insn->n; i++) {
-		ret = send_dux_commands(dev, USBDUX_CMD_TIMER_RD);
-		if (ret < 0)
-			goto counter_read_exit;
-		ret = receive_dux_commands(dev, USBDUX_CMD_TIMER_RD);
-		if (ret < 0)
-			goto counter_read_exit;
-
-		data[i] = le16_to_cpu(devpriv->insn_buf[chan + 1]);
-	}
-
-counter_read_exit:
-	up(&devpriv->sem);
-
-	return ret ? ret : insn->n;
-}
-
-static int usbdux_counter_write(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct usbdux_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	__le16 *p = (__le16 *)&devpriv->dux_commands[2];
-	int ret = 0;
-	int i;
-
-	down(&devpriv->sem);
-
-	devpriv->dux_commands[1] = chan;
-
-	for (i = 0; i < insn->n; i++) {
-		*p = cpu_to_le16(data[i]);
-
-		ret = send_dux_commands(dev, USBDUX_CMD_TIMER_WR);
-		if (ret < 0)
-			break;
-	}
-
-	up(&devpriv->sem);
-
-	return ret ? ret : insn->n;
-}
-
-static int usbdux_counter_config(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
-{
-	/* nothing to do so far */
-	return 2;
-}
-
-static void usbduxsub_unlink_pwm_urbs(struct comedi_device *dev)
-{
-	struct usbdux_private *devpriv = dev->private;
-
-	usb_kill_urb(devpriv->pwm_urb);
-}
-
-static void usbdux_pwm_stop(struct comedi_device *dev, int do_unlink)
-{
-	struct usbdux_private *devpriv = dev->private;
-
-	if (do_unlink)
-		usbduxsub_unlink_pwm_urbs(dev);
-
-	devpriv->pwm_cmd_running = 0;
-}
-
-static int usbdux_pwm_cancel(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct usbdux_private *devpriv = dev->private;
-	int ret;
-
-	down(&devpriv->sem);
-	/* unlink only if it is really running */
-	usbdux_pwm_stop(dev, devpriv->pwm_cmd_running);
-	ret = send_dux_commands(dev, USBDUX_CMD_PWM_OFF);
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static void usbduxsub_pwm_irq(struct urb *urb)
-{
-	struct comedi_device *dev = urb->context;
-	struct usbdux_private *devpriv = dev->private;
-	int ret;
-
-	switch (urb->status) {
-	case 0:
-		/* success */
-		break;
-
-	case -ECONNRESET:
-	case -ENOENT:
-	case -ESHUTDOWN:
-	case -ECONNABORTED:
-		/*
-		 * after an unlink command, unplug, ... etc
-		 * no unlink needed here. Already shutting down.
-		 */
-		if (devpriv->pwm_cmd_running)
-			usbdux_pwm_stop(dev, 0);
-
-		return;
-
-	default:
-		/* a real error */
-		if (devpriv->pwm_cmd_running) {
-			dev_err(dev->class_dev,
-				"Non-zero urb status received in pwm intr context: %d\n",
-				urb->status);
-			usbdux_pwm_stop(dev, 0);
-		}
-		return;
-	}
-
-	/* are we actually running? */
-	if (!devpriv->pwm_cmd_running)
-		return;
-
-	urb->transfer_buffer_length = devpriv->pwm_buf_sz;
-	urb->dev = comedi_to_usb_dev(dev);
-	urb->status = 0;
-	if (devpriv->pwm_cmd_running) {
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret < 0) {
-			dev_err(dev->class_dev,
-				"pwm urb resubm failed in int-cont. ret=%d",
-				ret);
-			if (ret == -EL2NSYNC)
-				dev_err(dev->class_dev,
-					"buggy USB host controller or bug in IRQ handling!\n");
-
-			/* don't do an unlink here */
-			usbdux_pwm_stop(dev, 0);
-		}
-	}
-}
-
-static int usbduxsub_submit_pwm_urbs(struct comedi_device *dev)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbdux_private *devpriv = dev->private;
-	struct urb *urb = devpriv->pwm_urb;
-
-	/* in case of a resubmission after an unlink... */
-	usb_fill_bulk_urb(urb, usb, usb_sndbulkpipe(usb, 4),
-			  urb->transfer_buffer,
-			  devpriv->pwm_buf_sz,
-			  usbduxsub_pwm_irq,
-			  dev);
-
-	return usb_submit_urb(urb, GFP_ATOMIC);
-}
-
-static int usbdux_pwm_period(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     unsigned int period)
-{
-	struct usbdux_private *devpriv = dev->private;
-	int fx2delay = 255;
-
-	if (period < MIN_PWM_PERIOD)
-		return -EAGAIN;
-
-	fx2delay = (period / (6 * 512 * 1000 / 33)) - 6;
-	if (fx2delay > 255)
-		return -EAGAIN;
-
-	devpriv->pwm_delay = fx2delay;
-	devpriv->pwm_period = period;
-
-	return 0;
-}
-
-static int usbdux_pwm_start(struct comedi_device *dev,
-			    struct comedi_subdevice *s)
-{
-	struct usbdux_private *devpriv = dev->private;
-	int ret = 0;
-
-	down(&devpriv->sem);
-
-	if (devpriv->pwm_cmd_running)
-		goto pwm_start_exit;
-
-	devpriv->dux_commands[1] = devpriv->pwm_delay;
-	ret = send_dux_commands(dev, USBDUX_CMD_PWM_ON);
-	if (ret < 0)
-		goto pwm_start_exit;
-
-	/* initialise the buffer */
-	memset(devpriv->pwm_urb->transfer_buffer, 0, devpriv->pwm_buf_sz);
-
-	devpriv->pwm_cmd_running = 1;
-	ret = usbduxsub_submit_pwm_urbs(dev);
-	if (ret < 0)
-		devpriv->pwm_cmd_running = 0;
-
-pwm_start_exit:
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static void usbdux_pwm_pattern(struct comedi_device *dev,
-			       struct comedi_subdevice *s,
-			       unsigned int chan,
-			       unsigned int value,
-			       unsigned int sign)
-{
-	struct usbdux_private *devpriv = dev->private;
-	char pwm_mask = (1 << chan);	/* DIO bit for the PWM data */
-	char sgn_mask = (16 << chan);	/* DIO bit for the sign */
-	char *buf = (char *)(devpriv->pwm_urb->transfer_buffer);
-	int szbuf = devpriv->pwm_buf_sz;
-	int i;
-
-	for (i = 0; i < szbuf; i++) {
-		char c = *buf;
-
-		c &= ~pwm_mask;
-		if (i < value)
-			c |= pwm_mask;
-		if (!sign)
-			c &= ~sgn_mask;
-		else
-			c |= sgn_mask;
-		*buf++ = c;
-	}
-}
-
-static int usbdux_pwm_write(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn,
-			    unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/*
-	 * It doesn't make sense to support more than one value here
-	 * because it would just overwrite the PWM buffer.
-	 */
-	if (insn->n != 1)
-		return -EINVAL;
-
-	/*
-	 * The sign is set via a special INSN only, this gives us 8 bits
-	 * for normal operation, sign is 0 by default.
-	 */
-	usbdux_pwm_pattern(dev, s, chan, data[0], 0);
-
-	return insn->n;
-}
-
-static int usbdux_pwm_config(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn,
-			     unsigned int *data)
-{
-	struct usbdux_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	switch (data[0]) {
-	case INSN_CONFIG_ARM:
-		/*
-		 * if not zero the PWM is limited to a certain time which is
-		 * not supported here
-		 */
-		if (data[1] != 0)
-			return -EINVAL;
-		return usbdux_pwm_start(dev, s);
-	case INSN_CONFIG_DISARM:
-		return usbdux_pwm_cancel(dev, s);
-	case INSN_CONFIG_GET_PWM_STATUS:
-		data[1] = devpriv->pwm_cmd_running;
-		return 0;
-	case INSN_CONFIG_PWM_SET_PERIOD:
-		return usbdux_pwm_period(dev, s, data[1]);
-	case INSN_CONFIG_PWM_GET_PERIOD:
-		data[1] = devpriv->pwm_period;
-		return 0;
-	case INSN_CONFIG_PWM_SET_H_BRIDGE:
-		/*
-		 * data[1] = value
-		 * data[2] = sign (for a relay)
-		 */
-		usbdux_pwm_pattern(dev, s, chan, data[1], (data[2] != 0));
-		return 0;
-	case INSN_CONFIG_PWM_GET_H_BRIDGE:
-		/* values are not kept in this driver, nothing to return here */
-		return -EINVAL;
-	}
-	return -EINVAL;
-}
-
-static int usbdux_firmware_upload(struct comedi_device *dev,
-				  const u8 *data, size_t size,
-				  unsigned long context)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	uint8_t *buf;
-	uint8_t *tmp;
-	int ret;
-
-	if (!data)
-		return 0;
-
-	if (size > USBDUX_FIRMWARE_MAX_LEN) {
-		dev_err(dev->class_dev,
-			"usbdux firmware binary it too large for FX2.\n");
-		return -ENOMEM;
-	}
-
-	/* we generate a local buffer for the firmware */
-	buf = kmemdup(data, size, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	/* we need a malloc'ed buffer for usb_control_msg() */
-	tmp = kmalloc(1, GFP_KERNEL);
-	if (!tmp) {
-		kfree(buf);
-		return -ENOMEM;
-	}
-
-	/* stop the current firmware on the device */
-	*tmp = 1;	/* 7f92 to one */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUX_FIRMWARE_CMD,
-			      VENDOR_DIR_OUT,
-			      USBDUX_CPU_CS, 0x0000,
-			      tmp, 1,
-			      BULK_TIMEOUT);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "can not stop firmware\n");
-		goto done;
-	}
-
-	/* upload the new firmware to the device */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUX_FIRMWARE_CMD,
-			      VENDOR_DIR_OUT,
-			      0, 0x0000,
-			      buf, size,
-			      BULK_TIMEOUT);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "firmware upload failed\n");
-		goto done;
-	}
-
-	/* start the new firmware on the device */
-	*tmp = 0;	/* 7f92 to zero */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUX_FIRMWARE_CMD,
-			      VENDOR_DIR_OUT,
-			      USBDUX_CPU_CS, 0x0000,
-			      tmp, 1,
-			      BULK_TIMEOUT);
-	if (ret < 0)
-		dev_err(dev->class_dev, "can not start firmware\n");
-
-done:
-	kfree(tmp);
-	kfree(buf);
-	return ret;
-}
-
-static int usbdux_alloc_usb_buffers(struct comedi_device *dev)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbdux_private *devpriv = dev->private;
-	struct urb *urb;
-	int i;
-
-	devpriv->dux_commands = kzalloc(SIZEOFDUXBUFFER, GFP_KERNEL);
-	devpriv->in_buf = kzalloc(SIZEINBUF, GFP_KERNEL);
-	devpriv->insn_buf = kzalloc(SIZEINSNBUF, GFP_KERNEL);
-	devpriv->ai_urbs = kcalloc(devpriv->n_ai_urbs, sizeof(void *),
-				   GFP_KERNEL);
-	devpriv->ao_urbs = kcalloc(devpriv->n_ao_urbs, sizeof(void *),
-				   GFP_KERNEL);
-	if (!devpriv->dux_commands || !devpriv->in_buf || !devpriv->insn_buf ||
-	    !devpriv->ai_urbs || !devpriv->ao_urbs)
-		return -ENOMEM;
-
-	for (i = 0; i < devpriv->n_ai_urbs; i++) {
-		/* one frame: 1ms */
-		urb = usb_alloc_urb(1, GFP_KERNEL);
-		if (!urb)
-			return -ENOMEM;
-		devpriv->ai_urbs[i] = urb;
-
-		urb->dev = usb;
-		urb->context = dev;
-		urb->pipe = usb_rcvisocpipe(usb, 6);
-		urb->transfer_flags = URB_ISO_ASAP;
-		urb->transfer_buffer = kzalloc(SIZEINBUF, GFP_KERNEL);
-		if (!urb->transfer_buffer)
-			return -ENOMEM;
-
-		urb->complete = usbduxsub_ai_isoc_irq;
-		urb->number_of_packets = 1;
-		urb->transfer_buffer_length = SIZEINBUF;
-		urb->iso_frame_desc[0].offset = 0;
-		urb->iso_frame_desc[0].length = SIZEINBUF;
-	}
-
-	for (i = 0; i < devpriv->n_ao_urbs; i++) {
-		/* one frame: 1ms */
-		urb = usb_alloc_urb(1, GFP_KERNEL);
-		if (!urb)
-			return -ENOMEM;
-		devpriv->ao_urbs[i] = urb;
-
-		urb->dev = usb;
-		urb->context = dev;
-		urb->pipe = usb_sndisocpipe(usb, 2);
-		urb->transfer_flags = URB_ISO_ASAP;
-		urb->transfer_buffer = kzalloc(SIZEOUTBUF, GFP_KERNEL);
-		if (!urb->transfer_buffer)
-			return -ENOMEM;
-
-		urb->complete = usbduxsub_ao_isoc_irq;
-		urb->number_of_packets = 1;
-		urb->transfer_buffer_length = SIZEOUTBUF;
-		urb->iso_frame_desc[0].offset = 0;
-		urb->iso_frame_desc[0].length = SIZEOUTBUF;
-		if (devpriv->high_speed)
-			urb->interval = 8;	/* uframes */
-		else
-			urb->interval = 1;	/* frames */
-	}
-
-	/* pwm */
-	if (devpriv->pwm_buf_sz) {
-		urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!urb)
-			return -ENOMEM;
-		devpriv->pwm_urb = urb;
-
-		/* max bulk ep size in high speed */
-		urb->transfer_buffer = kzalloc(devpriv->pwm_buf_sz,
-					       GFP_KERNEL);
-		if (!urb->transfer_buffer)
-			return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static void usbdux_free_usb_buffers(struct comedi_device *dev)
-{
-	struct usbdux_private *devpriv = dev->private;
-	struct urb *urb;
-	int i;
-
-	urb = devpriv->pwm_urb;
-	if (urb) {
-		kfree(urb->transfer_buffer);
-		usb_free_urb(urb);
-	}
-	if (devpriv->ao_urbs) {
-		for (i = 0; i < devpriv->n_ao_urbs; i++) {
-			urb = devpriv->ao_urbs[i];
-			if (urb) {
-				kfree(urb->transfer_buffer);
-				usb_free_urb(urb);
-			}
-		}
-		kfree(devpriv->ao_urbs);
-	}
-	if (devpriv->ai_urbs) {
-		for (i = 0; i < devpriv->n_ai_urbs; i++) {
-			urb = devpriv->ai_urbs[i];
-			if (urb) {
-				kfree(urb->transfer_buffer);
-				usb_free_urb(urb);
-			}
-		}
-		kfree(devpriv->ai_urbs);
-	}
-	kfree(devpriv->insn_buf);
-	kfree(devpriv->in_buf);
-	kfree(devpriv->dux_commands);
-}
-
-static int usbdux_auto_attach(struct comedi_device *dev,
-			      unsigned long context_unused)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbdux_private *devpriv;
-	struct comedi_subdevice *s;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	sema_init(&devpriv->sem, 1);
-
-	usb_set_intfdata(intf, devpriv);
-
-	devpriv->high_speed = (usb->speed == USB_SPEED_HIGH);
-	if (devpriv->high_speed) {
-		devpriv->n_ai_urbs = NUMOFINBUFFERSHIGH;
-		devpriv->n_ao_urbs = NUMOFOUTBUFFERSHIGH;
-		devpriv->pwm_buf_sz = 512;
-	} else {
-		devpriv->n_ai_urbs = NUMOFINBUFFERSFULL;
-		devpriv->n_ao_urbs = NUMOFOUTBUFFERSFULL;
-	}
-
-	ret = usbdux_alloc_usb_buffers(dev);
-	if (ret)
-		return ret;
-
-	/* setting to alternate setting 3: enabling iso ep and bulk ep. */
-	ret = usb_set_interface(usb, intf->altsetting->desc.bInterfaceNumber,
-				3);
-	if (ret < 0) {
-		dev_err(dev->class_dev,
-			"could not set alternate setting 3 in high speed\n");
-		return ret;
-	}
-
-	ret = comedi_load_firmware(dev, &usb->dev, USBDUX_FIRMWARE,
-				   usbdux_firmware_upload, 0);
-	if (ret < 0)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, (devpriv->high_speed) ? 5 : 4);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_CMD_READ;
-	s->n_chan	= 8;
-	s->maxdata	= 0x0fff;
-	s->len_chanlist	= 8;
-	s->range_table	= &range_usbdux_ai_range;
-	s->insn_read	= usbdux_ai_insn_read;
-	s->do_cmdtest	= usbdux_ai_cmdtest;
-	s->do_cmd	= usbdux_ai_cmd;
-	s->cancel	= usbdux_ai_cancel;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	dev->write_subdev = s;
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE;
-	s->n_chan	= 4;
-	s->maxdata	= 0x0fff;
-	s->len_chanlist	= s->n_chan;
-	s->range_table	= &range_usbdux_ao_range;
-	s->do_cmdtest	= usbdux_ao_cmdtest;
-	s->do_cmd	= usbdux_ao_cmd;
-	s->cancel	= usbdux_ao_cancel;
-	s->insn_read	= usbdux_ao_insn_read;
-	s->insn_write	= usbdux_ao_insn_write;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= usbdux_dio_insn_bits;
-	s->insn_config	= usbdux_dio_insn_config;
-
-	/* Counter subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE;
-	s->n_chan	= 4;
-	s->maxdata	= 0xffff;
-	s->insn_read	= usbdux_counter_read;
-	s->insn_write	= usbdux_counter_write;
-	s->insn_config	= usbdux_counter_config;
-
-	if (devpriv->high_speed) {
-		/* PWM subdevice */
-		s = &dev->subdevices[4];
-		s->type		= COMEDI_SUBD_PWM;
-		s->subdev_flags	= SDF_WRITABLE | SDF_PWM_HBRIDGE;
-		s->n_chan	= 8;
-		s->maxdata	= devpriv->pwm_buf_sz;
-		s->insn_write	= usbdux_pwm_write;
-		s->insn_config	= usbdux_pwm_config;
-
-		usbdux_pwm_period(dev, s, PWM_DEFAULT_PERIOD);
-	}
-
-	return 0;
-}
-
-static void usbdux_detach(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usbdux_private *devpriv = dev->private;
-
-	usb_set_intfdata(intf, NULL);
-
-	if (!devpriv)
-		return;
-
-	down(&devpriv->sem);
-
-	/* force unlink all urbs */
-	usbdux_pwm_stop(dev, 1);
-	usbdux_ao_stop(dev, 1);
-	usbdux_ai_stop(dev, 1);
-
-	usbdux_free_usb_buffers(dev);
-
-	up(&devpriv->sem);
-}
-
-static struct comedi_driver usbdux_driver = {
-	.driver_name	= "usbdux",
-	.module		= THIS_MODULE,
-	.auto_attach	= usbdux_auto_attach,
-	.detach		= usbdux_detach,
-};
-
-static int usbdux_usb_probe(struct usb_interface *intf,
-			    const struct usb_device_id *id)
-{
-	return comedi_usb_auto_config(intf, &usbdux_driver, 0);
-}
-
-static const struct usb_device_id usbdux_usb_table[] = {
-	{ USB_DEVICE(0x13d8, 0x0001) },
-	{ USB_DEVICE(0x13d8, 0x0002) },
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, usbdux_usb_table);
-
-static struct usb_driver usbdux_usb_driver = {
-	.name		= "usbdux",
-	.probe		= usbdux_usb_probe,
-	.disconnect	= comedi_usb_auto_unconfig,
-	.id_table	= usbdux_usb_table,
-};
-module_comedi_usb_driver(usbdux_driver, usbdux_usb_driver);
-
-MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com");
-MODULE_DESCRIPTION("Stirling/ITL USB-DUX -- Bernd.Porr@f2s.com");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(USBDUX_FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c
deleted file mode 100644
index d90dc59982be..000000000000
--- a/drivers/staging/comedi/drivers/usbduxfast.c
+++ /dev/null
@@ -1,1107 +0,0 @@
-/*
- *  Copyright (C) 2004-2014 Bernd Porr, mail@berndporr.me.uk
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: usbduxfast
- * Description: University of Stirling USB DAQ & INCITE Technology Limited
- * Devices: [ITL] USB-DUX-FAST (usbduxfast)
- * Author: Bernd Porr <mail@berndporr.me.uk>
- * Updated: 10 Oct 2014
- * Status: stable
- */
-
-/*
- * I must give credit here to Chris Baugher who
- * wrote the driver for AT-MIO-16d. I used some parts of this
- * driver. I also must give credits to David Brownell
- * who supported me with the USB development.
- *
- * Bernd Porr
- *
- *
- * Revision history:
- * 0.9: Dropping the first data packet which seems to be from the last transfer.
- *      Buffer overflows in the FX2 are handed over to comedi.
- * 0.92: Dropping now 4 packets. The quad buffer has to be emptied.
- *       Added insn command basically for testing. Sample rate is
- *       1MHz/16ch=62.5kHz
- * 0.99: Ian Abbott pointed out a bug which has been corrected. Thanks!
- * 0.99a: added external trigger.
- * 1.00: added firmware kernel request to the driver which fixed
- *       udev coldplug problem
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/fcntl.h>
-#include <linux/compiler.h>
-#include "../comedi_usb.h"
-
-/*
- * timeout for the USB-transfer
- */
-#define EZTIMEOUT	30
-
-/*
- * constants for "firmware" upload and download
- */
-#define FIRMWARE		"usbduxfast_firmware.bin"
-#define FIRMWARE_MAX_LEN	0x2000
-#define USBDUXFASTSUB_FIRMWARE	0xA0
-#define VENDOR_DIR_IN		0xC0
-#define VENDOR_DIR_OUT		0x40
-
-/*
- * internal addresses of the 8051 processor
- */
-#define USBDUXFASTSUB_CPUCS	0xE600
-
-/*
- * max lenghth of the transfer-buffer for software upload
- */
-#define TB_LEN	0x2000
-
-/*
- * input endpoint number
- */
-#define BULKINEP	6
-
-/*
- * endpoint for the A/D channellist: bulk OUT
- */
-#define CHANNELLISTEP	4
-
-/*
- * number of channels
- */
-#define NUMCHANNELS	32
-
-/*
- * size of the waveform descriptor
- */
-#define WAVESIZE	0x20
-
-/*
- * size of one A/D value
- */
-#define SIZEADIN	(sizeof(int16_t))
-
-/*
- * size of the input-buffer IN BYTES
- */
-#define SIZEINBUF	512
-
-/*
- * 16 bytes
- */
-#define SIZEINSNBUF	512
-
-/*
- * size of the buffer for the dux commands in bytes
- */
-#define SIZEOFDUXBUF	256
-
-/*
- * number of in-URBs which receive the data: min=5
- */
-#define NUMOFINBUFFERSHIGH	10
-
-/*
- * min delay steps for more than one channel
- * basically when the mux gives up ;-)
- *
- * steps at 30MHz in the FX2
- */
-#define MIN_SAMPLING_PERIOD	9
-
-/*
- * max number of 1/30MHz delay steps
- */
-#define MAX_SAMPLING_PERIOD	500
-
-/*
- * number of received packets to ignore before we start handing data
- * over to comedi, it's quad buffering and we have to ignore 4 packets
- */
-#define PACKETS_TO_IGNORE	4
-
-/*
- * comedi constants
- */
-static const struct comedi_lrange range_usbduxfast_ai_range = {
-	2, {
-		BIP_RANGE(0.75),
-		BIP_RANGE(0.5)
-	}
-};
-
-/*
- * private structure of one subdevice
- *
- * this is the structure which holds all the data of this driver
- * one sub device just now: A/D
- */
-struct usbduxfast_private {
-	struct urb *urb;	/* BULK-transfer handling: urb */
-	uint8_t *duxbuf;
-	int8_t *inbuf;
-	short int ai_cmd_running;	/* asynchronous command is running */
-	int ignore;		/* counter which ignores the first
-				   buffers */
-	struct semaphore sem;
-};
-
-/*
- * bulk transfers to usbduxfast
- */
-#define SENDADCOMMANDS            0
-#define SENDINITEP6               1
-
-static int usbduxfast_send_cmd(struct comedi_device *dev, int cmd_type)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxfast_private *devpriv = dev->private;
-	int nsent;
-	int ret;
-
-	devpriv->duxbuf[0] = cmd_type;
-
-	ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, CHANNELLISTEP),
-			   devpriv->duxbuf, SIZEOFDUXBUF,
-			   &nsent, 10000);
-	if (ret < 0)
-		dev_err(dev->class_dev,
-			"could not transmit command to the usb-device, err=%d\n",
-			ret);
-	return ret;
-}
-
-static void usbduxfast_cmd_data(struct comedi_device *dev, int index,
-				uint8_t len, uint8_t op, uint8_t out,
-				uint8_t log)
-{
-	struct usbduxfast_private *devpriv = dev->private;
-
-	/* Set the GPIF bytes, the first byte is the command byte */
-	devpriv->duxbuf[1 + 0x00 + index] = len;
-	devpriv->duxbuf[1 + 0x08 + index] = op;
-	devpriv->duxbuf[1 + 0x10 + index] = out;
-	devpriv->duxbuf[1 + 0x18 + index] = log;
-}
-
-static int usbduxfast_ai_stop(struct comedi_device *dev, int do_unlink)
-{
-	struct usbduxfast_private *devpriv = dev->private;
-
-	/* stop aquistion */
-	devpriv->ai_cmd_running = 0;
-
-	if (do_unlink && devpriv->urb) {
-		/* kill the running transfer */
-		usb_kill_urb(devpriv->urb);
-	}
-
-	return 0;
-}
-
-static int usbduxfast_ai_cancel(struct comedi_device *dev,
-				struct comedi_subdevice *s)
-{
-	struct usbduxfast_private *devpriv = dev->private;
-	int ret;
-
-	if (!devpriv)
-		return -EFAULT;
-
-	down(&devpriv->sem);
-	ret = usbduxfast_ai_stop(dev, 1);
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static void usbduxfast_ai_handle_urb(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct urb *urb)
-{
-	struct usbduxfast_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	int ret;
-
-	if (devpriv->ignore) {
-		devpriv->ignore--;
-	} else {
-		unsigned int nsamples;
-
-		nsamples = comedi_bytes_to_samples(s, urb->actual_length);
-		nsamples = comedi_nsamples_left(s, nsamples);
-		comedi_buf_write_samples(s, urb->transfer_buffer, nsamples);
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg)
-			async->events |= COMEDI_CB_EOA;
-	}
-
-	/* if command is still running, resubmit urb for BULK transfer */
-	if (!(async->events & COMEDI_CB_CANCEL_MASK)) {
-		urb->dev = comedi_to_usb_dev(dev);
-		urb->status = 0;
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret < 0) {
-			dev_err(dev->class_dev, "urb resubm failed: %d", ret);
-			async->events |= COMEDI_CB_ERROR;
-		}
-	}
-}
-
-static void usbduxfast_ai_interrupt(struct urb *urb)
-{
-	struct comedi_device *dev = urb->context;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-	struct usbduxfast_private *devpriv = dev->private;
-
-	/* exit if not running a command, do not resubmit urb */
-	if (!devpriv->ai_cmd_running)
-		return;
-
-	switch (urb->status) {
-	case 0:
-		usbduxfast_ai_handle_urb(dev, s, urb);
-		break;
-
-	case -ECONNRESET:
-	case -ENOENT:
-	case -ESHUTDOWN:
-	case -ECONNABORTED:
-		/* after an unlink command, unplug, ... etc */
-		async->events |= COMEDI_CB_ERROR;
-		break;
-
-	default:
-		/* a real error */
-		dev_err(dev->class_dev,
-			"non-zero urb status received in ai intr context: %d\n",
-			urb->status);
-		async->events |= COMEDI_CB_ERROR;
-		break;
-	}
-
-	/*
-	 * comedi_handle_events() cannot be used in this driver. The (*cancel)
-	 * operation would unlink the urb.
-	 */
-	if (async->events & COMEDI_CB_CANCEL_MASK)
-		usbduxfast_ai_stop(dev, 0);
-
-	comedi_event(dev, s);
-}
-
-static int usbduxfast_submit_urb(struct comedi_device *dev)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxfast_private *devpriv = dev->private;
-	int ret;
-
-	if (!devpriv)
-		return -EFAULT;
-
-	usb_fill_bulk_urb(devpriv->urb, usb, usb_rcvbulkpipe(usb, BULKINEP),
-			  devpriv->inbuf, SIZEINBUF,
-			  usbduxfast_ai_interrupt, dev);
-
-	ret = usb_submit_urb(devpriv->urb, GFP_ATOMIC);
-	if (ret) {
-		dev_err(dev->class_dev, "usb_submit_urb error %d\n", ret);
-		return ret;
-	}
-	return 0;
-}
-
-static int usbduxfast_ai_cmdtest(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_cmd *cmd)
-{
-	int err = 0;
-	long int steps, tmp;
-	int min_sample_period;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src,
-					TRIG_NOW | TRIG_EXT | TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_FOLLOW | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->scan_begin_src);
-	err |= comedi_check_trigger_is_unique(cmd->convert_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	/* can't have external stop and start triggers at once */
-	if (cmd->start_src == TRIG_EXT && cmd->stop_src == TRIG_EXT)
-		err |= -EINVAL;
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (!cmd->chanlist_len)
-		err |= -EINVAL;
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->chanlist_len == 1)
-		min_sample_period = 1;
-	else
-		min_sample_period = MIN_SAMPLING_PERIOD;
-
-	if (cmd->convert_src == TRIG_TIMER) {
-		steps = cmd->convert_arg * 30;
-		if (steps < (min_sample_period * 1000))
-			steps = min_sample_period * 1000;
-
-		if (steps > (MAX_SAMPLING_PERIOD * 1000))
-			steps = MAX_SAMPLING_PERIOD * 1000;
-
-		/* calc arg again */
-		tmp = steps / 30;
-		err |= comedi_check_trigger_arg_is(&cmd->convert_arg, tmp);
-	}
-
-	/* stop source */
-	switch (cmd->stop_src) {
-	case TRIG_COUNT:
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-		break;
-	case TRIG_NONE:
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-		break;
-		/*
-		 * TRIG_EXT doesn't care since it doesn't trigger
-		 * off a numbered channel
-		 */
-	default:
-		break;
-	}
-
-	if (err)
-		return 3;
-
-	/* step 4: fix up any arguments */
-
-	return 0;
-}
-
-static int usbduxfast_ai_inttrig(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 unsigned int trig_num)
-{
-	struct usbduxfast_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	if (!devpriv)
-		return -EFAULT;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	down(&devpriv->sem);
-
-	if (!devpriv->ai_cmd_running) {
-		devpriv->ai_cmd_running = 1;
-		ret = usbduxfast_submit_urb(dev);
-		if (ret < 0) {
-			dev_err(dev->class_dev, "urbSubmit: err=%d\n", ret);
-			devpriv->ai_cmd_running = 0;
-			up(&devpriv->sem);
-			return ret;
-		}
-		s->async->inttrig = NULL;
-	} else {
-		dev_err(dev->class_dev, "ai is already running\n");
-	}
-	up(&devpriv->sem);
-	return 1;
-}
-
-static int usbduxfast_ai_cmd(struct comedi_device *dev,
-			     struct comedi_subdevice *s)
-{
-	struct usbduxfast_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int chan, gain, rngmask = 0xff;
-	int i, j, ret;
-	int result;
-	long steps, steps_tmp;
-
-	if (!devpriv)
-		return -EFAULT;
-
-	down(&devpriv->sem);
-	if (devpriv->ai_cmd_running) {
-		dev_err(dev->class_dev, "ai_cmd not possible\n");
-		up(&devpriv->sem);
-		return -EBUSY;
-	}
-
-	/*
-	 * ignore the first buffers from the device if there
-	 * is an error condition
-	 */
-	devpriv->ignore = PACKETS_TO_IGNORE;
-
-	gain = CR_RANGE(cmd->chanlist[0]);
-	for (i = 0; i < cmd->chanlist_len; ++i) {
-		chan = CR_CHAN(cmd->chanlist[i]);
-		if (chan != i) {
-			dev_err(dev->class_dev,
-				"channels are not consecutive\n");
-			up(&devpriv->sem);
-			return -EINVAL;
-		}
-		if ((gain != CR_RANGE(cmd->chanlist[i]))
-			&& (cmd->chanlist_len > 3)) {
-			dev_err(dev->class_dev,
-				"gain must be the same for all channels\n");
-			up(&devpriv->sem);
-			return -EINVAL;
-		}
-		if (i >= NUMCHANNELS) {
-			dev_err(dev->class_dev, "chanlist too long\n");
-			break;
-		}
-	}
-	steps = 0;
-	if (cmd->convert_src == TRIG_TIMER)
-		steps = (cmd->convert_arg * 30) / 1000;
-
-	if ((steps < MIN_SAMPLING_PERIOD) && (cmd->chanlist_len != 1)) {
-		dev_err(dev->class_dev,
-			"steps=%ld, scan_begin_arg=%d. Not properly tested by cmdtest?\n",
-			steps, cmd->scan_begin_arg);
-		up(&devpriv->sem);
-		return -EINVAL;
-	}
-	if (steps > MAX_SAMPLING_PERIOD) {
-		dev_err(dev->class_dev, "sampling rate too low\n");
-		up(&devpriv->sem);
-		return -EINVAL;
-	}
-	if ((cmd->start_src == TRIG_EXT) && (cmd->chanlist_len != 1)
-	    && (cmd->chanlist_len != 16)) {
-		dev_err(dev->class_dev,
-			"TRIG_EXT only with 1 or 16 channels possible\n");
-		up(&devpriv->sem);
-		return -EINVAL;
-	}
-
-	switch (cmd->chanlist_len) {
-	case 1:
-		/*
-		 * one channel
-		 */
-
-		if (CR_RANGE(cmd->chanlist[0]) > 0)
-			rngmask = 0xff - 0x04;
-		else
-			rngmask = 0xff;
-
-		/*
-		 * for external trigger: looping in this state until
-		 * the RDY0 pin becomes zero
-		 */
-
-		/* we loop here until ready has been set */
-		if (cmd->start_src == TRIG_EXT) {
-			/* branch back to state 0 */
-			/* deceision state w/o data */
-			/* RDY0 = 0 */
-			usbduxfast_cmd_data(dev, 0, 0x01, 0x01, rngmask, 0x00);
-		} else {	/* we just proceed to state 1 */
-			usbduxfast_cmd_data(dev, 0, 0x01, 0x00, rngmask, 0x00);
-		}
-
-		if (steps < MIN_SAMPLING_PERIOD) {
-			/* for fast single channel aqu without mux */
-			if (steps <= 1) {
-				/*
-				 * we just stay here at state 1 and rexecute
-				 * the same state this gives us 30MHz sampling
-				 * rate
-				 */
-
-				/* branch back to state 1 */
-				/* deceision state with data */
-				/* doesn't matter */
-				usbduxfast_cmd_data(dev, 1,
-						    0x89, 0x03, rngmask, 0xff);
-			} else {
-				/*
-				 * we loop through two states: data and delay
-				 * max rate is 15MHz
-				 */
-				/* data */
-				/* doesn't matter */
-				usbduxfast_cmd_data(dev, 1, steps - 1,
-						    0x02, rngmask, 0x00);
-
-				/* branch back to state 1 */
-				/* deceision state w/o data */
-				/* doesn't matter */
-				usbduxfast_cmd_data(dev, 2,
-						    0x09, 0x01, rngmask, 0xff);
-			}
-		} else {
-			/*
-			 * we loop through 3 states: 2x delay and 1x data
-			 * this gives a min sampling rate of 60kHz
-			 */
-
-			/* we have 1 state with duration 1 */
-			steps = steps - 1;
-
-			/* do the first part of the delay */
-			usbduxfast_cmd_data(dev, 1,
-					    steps / 2, 0x00, rngmask, 0x00);
-
-			/* and the second part */
-			usbduxfast_cmd_data(dev, 2, steps - steps / 2,
-					    0x00, rngmask, 0x00);
-
-			/* get the data and branch back */
-
-			/* branch back to state 1 */
-			/* deceision state w data */
-			/* doesn't matter */
-			usbduxfast_cmd_data(dev, 3,
-					    0x09, 0x03, rngmask, 0xff);
-		}
-		break;
-
-	case 2:
-		/*
-		 * two channels
-		 * commit data to the FIFO
-		 */
-
-		if (CR_RANGE(cmd->chanlist[0]) > 0)
-			rngmask = 0xff - 0x04;
-		else
-			rngmask = 0xff;
-
-		/* data */
-		usbduxfast_cmd_data(dev, 0, 0x01, 0x02, rngmask, 0x00);
-
-		/* we have 1 state with duration 1: state 0 */
-		steps_tmp = steps - 1;
-
-		if (CR_RANGE(cmd->chanlist[1]) > 0)
-			rngmask = 0xff - 0x04;
-		else
-			rngmask = 0xff;
-
-		/* do the first part of the delay */
-		/* count */
-		usbduxfast_cmd_data(dev, 1, steps_tmp / 2,
-				    0x00, 0xfe & rngmask, 0x00);
-
-		/* and the second part */
-		usbduxfast_cmd_data(dev, 2, steps_tmp  - steps_tmp / 2,
-				    0x00, rngmask, 0x00);
-
-		/* data */
-		usbduxfast_cmd_data(dev, 3, 0x01, 0x02, rngmask, 0x00);
-
-		/*
-		 * we have 2 states with duration 1: step 6 and
-		 * the IDLE state
-		 */
-		steps_tmp = steps - 2;
-
-		if (CR_RANGE(cmd->chanlist[0]) > 0)
-			rngmask = 0xff - 0x04;
-		else
-			rngmask = 0xff;
-
-		/* do the first part of the delay */
-		/* reset */
-		usbduxfast_cmd_data(dev, 4, steps_tmp / 2,
-				    0x00, (0xff - 0x02) & rngmask, 0x00);
-
-		/* and the second part */
-		usbduxfast_cmd_data(dev, 5, steps_tmp - steps_tmp / 2,
-				    0x00, rngmask, 0x00);
-
-		usbduxfast_cmd_data(dev, 6, 0x01, 0x00, rngmask, 0x00);
-		break;
-
-	case 3:
-		/*
-		 * three channels
-		 */
-		for (j = 0; j < 1; j++) {
-			int index = j * 2;
-
-			if (CR_RANGE(cmd->chanlist[j]) > 0)
-				rngmask = 0xff - 0x04;
-			else
-				rngmask = 0xff;
-			/*
-			 * commit data to the FIFO and do the first part
-			 * of the delay
-			 */
-			/* data */
-			/* no change */
-			usbduxfast_cmd_data(dev, index, steps / 2,
-					    0x02, rngmask, 0x00);
-
-			if (CR_RANGE(cmd->chanlist[j + 1]) > 0)
-				rngmask = 0xff - 0x04;
-			else
-				rngmask = 0xff;
-
-			/* do the second part of the delay */
-			/* no data */
-			/* count */
-			usbduxfast_cmd_data(dev, index + 1, steps - steps / 2,
-					    0x00, 0xfe & rngmask, 0x00);
-		}
-
-		/* 2 steps with duration 1: the idele step and step 6: */
-		steps_tmp = steps - 2;
-
-		/* commit data to the FIFO and do the first part of the delay */
-		/* data */
-		usbduxfast_cmd_data(dev, 4, steps_tmp / 2,
-				    0x02, rngmask, 0x00);
-
-		if (CR_RANGE(cmd->chanlist[0]) > 0)
-			rngmask = 0xff - 0x04;
-		else
-			rngmask = 0xff;
-
-		/* do the second part of the delay */
-		/* no data */
-		/* reset */
-		usbduxfast_cmd_data(dev, 5, steps_tmp - steps_tmp / 2,
-				    0x00, (0xff - 0x02) & rngmask, 0x00);
-
-		usbduxfast_cmd_data(dev, 6, 0x01, 0x00, rngmask, 0x00);
-		break;
-
-	case 16:
-		if (CR_RANGE(cmd->chanlist[0]) > 0)
-			rngmask = 0xff - 0x04;
-		else
-			rngmask = 0xff;
-
-		if (cmd->start_src == TRIG_EXT) {
-			/*
-			 * we loop here until ready has been set
-			 */
-
-			/* branch back to state 0 */
-			/* deceision state w/o data */
-			/* reset */
-			/* RDY0 = 0 */
-			usbduxfast_cmd_data(dev, 0, 0x01, 0x01,
-					    (0xff - 0x02) & rngmask, 0x00);
-		} else {
-			/*
-			 * we just proceed to state 1
-			 */
-
-			/* 30us reset pulse */
-			/* reset */
-			usbduxfast_cmd_data(dev, 0, 0xff, 0x00,
-					    (0xff - 0x02) & rngmask, 0x00);
-		}
-
-		/* commit data to the FIFO */
-		/* data */
-		usbduxfast_cmd_data(dev, 1, 0x01, 0x02, rngmask, 0x00);
-
-		/* we have 2 states with duration 1 */
-		steps = steps - 2;
-
-		/* do the first part of the delay */
-		usbduxfast_cmd_data(dev, 2, steps / 2,
-				    0x00, 0xfe & rngmask, 0x00);
-
-		/* and the second part */
-		usbduxfast_cmd_data(dev, 3, steps - steps / 2,
-				    0x00, rngmask, 0x00);
-
-		/* branch back to state 1 */
-		/* deceision state w/o data */
-		/* doesn't matter */
-		usbduxfast_cmd_data(dev, 4, 0x09, 0x01, rngmask, 0xff);
-
-		break;
-
-	default:
-		dev_err(dev->class_dev, "unsupported combination of channels\n");
-		up(&devpriv->sem);
-		return -EFAULT;
-	}
-
-	/* 0 means that the AD commands are sent */
-	result = usbduxfast_send_cmd(dev, SENDADCOMMANDS);
-	if (result < 0) {
-		up(&devpriv->sem);
-		return result;
-	}
-
-	if ((cmd->start_src == TRIG_NOW) || (cmd->start_src == TRIG_EXT)) {
-		/* enable this acquisition operation */
-		devpriv->ai_cmd_running = 1;
-		ret = usbduxfast_submit_urb(dev);
-		if (ret < 0) {
-			devpriv->ai_cmd_running = 0;
-			/* fixme: unlink here?? */
-			up(&devpriv->sem);
-			return ret;
-		}
-		s->async->inttrig = NULL;
-	} else {	/* TRIG_INT */
-		s->async->inttrig = usbduxfast_ai_inttrig;
-	}
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-/*
- * Mode 0 is used to get a single conversion on demand.
- */
-static int usbduxfast_ai_insn_read(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxfast_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	unsigned int range = CR_RANGE(insn->chanspec);
-	uint8_t rngmask = range ? (0xff - 0x04) : 0xff;
-	int i, j, n, actual_length;
-	int ret;
-
-	down(&devpriv->sem);
-
-	if (devpriv->ai_cmd_running) {
-		dev_err(dev->class_dev,
-			"ai_insn_read not possible, async cmd is running\n");
-		up(&devpriv->sem);
-		return -EBUSY;
-	}
-
-	/* set command for the first channel */
-
-	/* commit data to the FIFO */
-	/* data */
-	usbduxfast_cmd_data(dev, 0, 0x01, 0x02, rngmask, 0x00);
-
-	/* do the first part of the delay */
-	usbduxfast_cmd_data(dev, 1, 0x0c, 0x00, 0xfe & rngmask, 0x00);
-	usbduxfast_cmd_data(dev, 2, 0x01, 0x00, 0xfe & rngmask, 0x00);
-	usbduxfast_cmd_data(dev, 3, 0x01, 0x00, 0xfe & rngmask, 0x00);
-	usbduxfast_cmd_data(dev, 4, 0x01, 0x00, 0xfe & rngmask, 0x00);
-
-	/* second part */
-	usbduxfast_cmd_data(dev, 5, 0x0c, 0x00, rngmask, 0x00);
-	usbduxfast_cmd_data(dev, 6, 0x01, 0x00, rngmask, 0x00);
-
-	ret = usbduxfast_send_cmd(dev, SENDADCOMMANDS);
-	if (ret < 0) {
-		up(&devpriv->sem);
-		return ret;
-	}
-
-	for (i = 0; i < PACKETS_TO_IGNORE; i++) {
-		ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, BULKINEP),
-				   devpriv->inbuf, SIZEINBUF,
-				   &actual_length, 10000);
-		if (ret < 0) {
-			dev_err(dev->class_dev, "insn timeout, no data\n");
-			up(&devpriv->sem);
-			return ret;
-		}
-	}
-
-	for (i = 0; i < insn->n;) {
-		ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, BULKINEP),
-				   devpriv->inbuf, SIZEINBUF,
-				   &actual_length, 10000);
-		if (ret < 0) {
-			dev_err(dev->class_dev, "insn data error: %d\n", ret);
-			up(&devpriv->sem);
-			return ret;
-		}
-		n = actual_length / sizeof(uint16_t);
-		if ((n % 16) != 0) {
-			dev_err(dev->class_dev, "insn data packet corrupted\n");
-			up(&devpriv->sem);
-			return -EINVAL;
-		}
-		for (j = chan; (j < n) && (i < insn->n); j = j + 16) {
-			data[i] = ((uint16_t *) (devpriv->inbuf))[j];
-			i++;
-		}
-	}
-
-	up(&devpriv->sem);
-
-	return insn->n;
-}
-
-static int usbduxfast_attach_common(struct comedi_device *dev)
-{
-	struct usbduxfast_private *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	int ret;
-
-	down(&devpriv->sem);
-
-	ret = comedi_alloc_subdevices(dev, 1);
-	if (ret) {
-		up(&devpriv->sem);
-		return ret;
-	}
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_CMD_READ;
-	s->n_chan	= 16;
-	s->len_chanlist	= 16;
-	s->insn_read	= usbduxfast_ai_insn_read;
-	s->do_cmdtest	= usbduxfast_ai_cmdtest;
-	s->do_cmd	= usbduxfast_ai_cmd;
-	s->cancel	= usbduxfast_ai_cancel;
-	s->maxdata	= 0x1000;
-	s->range_table	= &range_usbduxfast_ai_range;
-
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-static int usbduxfast_upload_firmware(struct comedi_device *dev,
-				      const u8 *data, size_t size,
-				      unsigned long context)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	uint8_t *buf;
-	unsigned char *tmp;
-	int ret;
-
-	if (!data)
-		return 0;
-
-	if (size > FIRMWARE_MAX_LEN) {
-		dev_err(dev->class_dev, "firmware binary too large for FX2\n");
-		return -ENOMEM;
-	}
-
-	/* we generate a local buffer for the firmware */
-	buf = kmemdup(data, size, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	/* we need a malloc'ed buffer for usb_control_msg() */
-	tmp = kmalloc(1, GFP_KERNEL);
-	if (!tmp) {
-		kfree(buf);
-		return -ENOMEM;
-	}
-
-	/* stop the current firmware on the device */
-	*tmp = 1;	/* 7f92 to one */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUXFASTSUB_FIRMWARE,
-			      VENDOR_DIR_OUT,
-			      USBDUXFASTSUB_CPUCS, 0x0000,
-			      tmp, 1,
-			      EZTIMEOUT);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "can not stop firmware\n");
-		goto done;
-	}
-
-	/* upload the new firmware to the device */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUXFASTSUB_FIRMWARE,
-			      VENDOR_DIR_OUT,
-			      0, 0x0000,
-			      buf, size,
-			      EZTIMEOUT);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "firmware upload failed\n");
-		goto done;
-	}
-
-	/* start the new firmware on the device */
-	*tmp = 0;	/* 7f92 to zero */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUXFASTSUB_FIRMWARE,
-			      VENDOR_DIR_OUT,
-			      USBDUXFASTSUB_CPUCS, 0x0000,
-			      tmp, 1,
-			      EZTIMEOUT);
-	if (ret < 0)
-		dev_err(dev->class_dev, "can not start firmware\n");
-
-done:
-	kfree(tmp);
-	kfree(buf);
-	return ret;
-}
-
-static int usbduxfast_auto_attach(struct comedi_device *dev,
-				  unsigned long context_unused)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxfast_private *devpriv;
-	int ret;
-
-	if (usb->speed != USB_SPEED_HIGH) {
-		dev_err(dev->class_dev,
-			"This driver needs USB 2.0 to operate. Aborting...\n");
-		return -ENODEV;
-	}
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	sema_init(&devpriv->sem, 1);
-	usb_set_intfdata(intf, devpriv);
-
-	devpriv->duxbuf = kmalloc(SIZEOFDUXBUF, GFP_KERNEL);
-	if (!devpriv->duxbuf)
-		return -ENOMEM;
-
-	ret = usb_set_interface(usb,
-				intf->altsetting->desc.bInterfaceNumber, 1);
-	if (ret < 0) {
-		dev_err(dev->class_dev,
-			"could not switch to alternate setting 1\n");
-		return -ENODEV;
-	}
-
-	devpriv->urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!devpriv->urb) {
-		dev_err(dev->class_dev, "Could not alloc. urb\n");
-		return -ENOMEM;
-	}
-
-	devpriv->inbuf = kmalloc(SIZEINBUF, GFP_KERNEL);
-	if (!devpriv->inbuf)
-		return -ENOMEM;
-
-	ret = comedi_load_firmware(dev, &usb->dev, FIRMWARE,
-				   usbduxfast_upload_firmware, 0);
-	if (ret)
-		return ret;
-
-	return usbduxfast_attach_common(dev);
-}
-
-static void usbduxfast_detach(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usbduxfast_private *devpriv = dev->private;
-
-	if (!devpriv)
-		return;
-
-	down(&devpriv->sem);
-
-	usb_set_intfdata(intf, NULL);
-
-	if (devpriv->urb) {
-		/* waits until a running transfer is over */
-		usb_kill_urb(devpriv->urb);
-
-		kfree(devpriv->inbuf);
-		devpriv->inbuf = NULL;
-
-		usb_free_urb(devpriv->urb);
-		devpriv->urb = NULL;
-	}
-
-	kfree(devpriv->duxbuf);
-	devpriv->duxbuf = NULL;
-
-	devpriv->ai_cmd_running = 0;
-
-	up(&devpriv->sem);
-}
-
-static struct comedi_driver usbduxfast_driver = {
-	.driver_name	= "usbduxfast",
-	.module		= THIS_MODULE,
-	.auto_attach	= usbduxfast_auto_attach,
-	.detach		= usbduxfast_detach,
-};
-
-static int usbduxfast_usb_probe(struct usb_interface *intf,
-				const struct usb_device_id *id)
-{
-	return comedi_usb_auto_config(intf, &usbduxfast_driver, 0);
-}
-
-static const struct usb_device_id usbduxfast_usb_table[] = {
-	/* { USB_DEVICE(0x4b4, 0x8613) }, testing */
-	{ USB_DEVICE(0x13d8, 0x0010) },	/* real ID */
-	{ USB_DEVICE(0x13d8, 0x0011) },	/* real ID */
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, usbduxfast_usb_table);
-
-static struct usb_driver usbduxfast_usb_driver = {
-	.name		= "usbduxfast",
-	.probe		= usbduxfast_usb_probe,
-	.disconnect	= comedi_usb_auto_unconfig,
-	.id_table	= usbduxfast_usb_table,
-};
-module_comedi_usb_driver(usbduxfast_driver, usbduxfast_usb_driver);
-
-MODULE_AUTHOR("Bernd Porr, BerndPorr@f2s.com");
-MODULE_DESCRIPTION("USB-DUXfast, BerndPorr@f2s.com");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
deleted file mode 100644
index 649cf47184a4..000000000000
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ /dev/null
@@ -1,1627 +0,0 @@
-/*
- * usbduxsigma.c
- * Copyright (C) 2011-2015 Bernd Porr, mail@berndporr.me.uk
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * Driver: usbduxsigma
- * Description: University of Stirling USB DAQ & INCITE Technology Limited
- * Devices: [ITL] USB-DUX-SIGMA (usbduxsigma)
- * Author: Bernd Porr <mail@berndporr.me.uk>
- * Updated: 20 July 2015
- * Status: stable
- */
-
-/*
- * I must give credit here to Chris Baugher who
- * wrote the driver for AT-MIO-16d. I used some parts of this
- * driver. I also must give credits to David Brownell
- * who supported me with the USB development.
- *
- * Note: the raw data from the A/D converter is 24 bit big endian
- * anything else is little endian to/from the dux board
- *
- *
- * Revision history:
- *   0.1: initial version
- *   0.2: all basic functions implemented, digital I/O only for one port
- *   0.3: proper vendor ID and driver name
- *   0.4: fixed D/A voltage range
- *   0.5: various bug fixes, health check at startup
- *   0.6: corrected wrong input range
- *   0.7: rewrite code that urb->interval is always 1
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/fcntl.h>
-#include <linux/compiler.h>
-#include <asm/unaligned.h>
-
-#include "../comedi_usb.h"
-
-/* timeout for the USB-transfer in ms*/
-#define BULK_TIMEOUT 1000
-
-/* constants for "firmware" upload and download */
-#define FIRMWARE		"usbduxsigma_firmware.bin"
-#define FIRMWARE_MAX_LEN	0x4000
-#define USBDUXSUB_FIRMWARE	0xa0
-#define VENDOR_DIR_IN		0xc0
-#define VENDOR_DIR_OUT		0x40
-
-/* internal addresses of the 8051 processor */
-#define USBDUXSUB_CPUCS 0xE600
-
-/* 300Hz max frequ under PWM */
-#define MIN_PWM_PERIOD  ((long)(1E9/300))
-
-/* Default PWM frequency */
-#define PWM_DEFAULT_PERIOD ((long)(1E9/100))
-
-/* Number of channels (16 AD and offset)*/
-#define NUMCHANNELS 16
-
-/* Size of one A/D value */
-#define SIZEADIN          ((sizeof(uint32_t)))
-
-/*
- * Size of the async input-buffer IN BYTES, the DIO state is transmitted
- * as the first byte.
- */
-#define SIZEINBUF         (((NUMCHANNELS+1)*SIZEADIN))
-
-/* 16 bytes. */
-#define SIZEINSNBUF       16
-
-/* Number of DA channels */
-#define NUMOUTCHANNELS    8
-
-/* size of one value for the D/A converter: channel and value */
-#define SIZEDAOUT          ((sizeof(uint8_t)+sizeof(uint16_t)))
-
-/*
- * Size of the output-buffer in bytes
- * Actually only the first 4 triplets are used but for the
- * high speed mode we need to pad it to 8 (microframes).
- */
-#define SIZEOUTBUF         ((8*SIZEDAOUT))
-
-/*
- * Size of the buffer for the dux commands: just now max size is determined
- * by the analogue out + command byte + panic bytes...
- */
-#define SIZEOFDUXBUFFER    ((8*SIZEDAOUT+2))
-
-/* Number of in-URBs which receive the data: min=2 */
-#define NUMOFINBUFFERSFULL     5
-
-/* Number of out-URBs which send the data: min=2 */
-#define NUMOFOUTBUFFERSFULL    5
-
-/* Number of in-URBs which receive the data: min=5 */
-/* must have more buffers due to buggy USB ctr */
-#define NUMOFINBUFFERSHIGH     10
-
-/* Number of out-URBs which send the data: min=5 */
-/* must have more buffers due to buggy USB ctr */
-#define NUMOFOUTBUFFERSHIGH    10
-
-/* number of retries to get the right dux command */
-#define RETRIES 10
-
-/* bulk transfer commands to usbduxsigma */
-#define USBBUXSIGMA_AD_CMD		9
-#define USBDUXSIGMA_DA_CMD		1
-#define USBDUXSIGMA_DIO_CFG_CMD		2
-#define USBDUXSIGMA_DIO_BITS_CMD	3
-#define USBDUXSIGMA_SINGLE_AD_CMD	4
-#define USBDUXSIGMA_PWM_ON_CMD		7
-#define USBDUXSIGMA_PWM_OFF_CMD		8
-
-static const struct comedi_lrange usbduxsigma_ai_range = {
-	1, {
-		BIP_RANGE(2.5 * 0x800000 / 0x780000 / 2.0)
-	}
-};
-
-struct usbduxsigma_private {
-	/* actual number of in-buffers */
-	int n_ai_urbs;
-	/* actual number of out-buffers */
-	int n_ao_urbs;
-	/* ISO-transfer handling: buffers */
-	struct urb **ai_urbs;
-	struct urb **ao_urbs;
-	/* pwm-transfer handling */
-	struct urb *pwm_urb;
-	/* PWM period */
-	unsigned int pwm_period;
-	/* PWM internal delay for the GPIF in the FX2 */
-	uint8_t pwm_delay;
-	/* size of the PWM buffer which holds the bit pattern */
-	int pwm_buf_sz;
-	/* input buffer for the ISO-transfer */
-	__be32 *in_buf;
-	/* input buffer for single insn */
-	uint8_t *insn_buf;
-
-	unsigned high_speed:1;
-	unsigned ai_cmd_running:1;
-	unsigned ao_cmd_running:1;
-	unsigned pwm_cmd_running:1;
-
-	/* time between samples in units of the timer */
-	unsigned int ai_timer;
-	unsigned int ao_timer;
-	/* counter between acquisitions */
-	unsigned int ai_counter;
-	unsigned int ao_counter;
-	/* interval in frames/uframes */
-	unsigned int ai_interval;
-	/* commands */
-	uint8_t *dux_commands;
-	struct semaphore sem;
-};
-
-static void usbduxsigma_unlink_urbs(struct urb **urbs, int num_urbs)
-{
-	int i;
-
-	for (i = 0; i < num_urbs; i++)
-		usb_kill_urb(urbs[i]);
-}
-
-static void usbduxsigma_ai_stop(struct comedi_device *dev, int do_unlink)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-
-	if (do_unlink && devpriv->ai_urbs)
-		usbduxsigma_unlink_urbs(devpriv->ai_urbs, devpriv->n_ai_urbs);
-
-	devpriv->ai_cmd_running = 0;
-}
-
-static int usbduxsigma_ai_cancel(struct comedi_device *dev,
-				 struct comedi_subdevice *s)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-
-	down(&devpriv->sem);
-	/* unlink only if it is really running */
-	usbduxsigma_ai_stop(dev, devpriv->ai_cmd_running);
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-static void usbduxsigma_ai_handle_urb(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct urb *urb)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	uint32_t val;
-	int ret;
-	int i;
-
-	if ((urb->actual_length > 0) && (urb->status != -EXDEV)) {
-		devpriv->ai_counter--;
-		if (devpriv->ai_counter == 0) {
-			devpriv->ai_counter = devpriv->ai_timer;
-
-			/* get the data from the USB bus
-			   and hand it over to comedi */
-			for (i = 0; i < cmd->chanlist_len; i++) {
-				/* transfer data,
-				   note first byte is the DIO state */
-				val = be32_to_cpu(devpriv->in_buf[i+1]);
-				val &= 0x00ffffff; /* strip status byte */
-				val ^= 0x00800000; /* convert to unsigned */
-
-				if (!comedi_buf_write_samples(s, &val, 1))
-					return;
-			}
-
-			if (cmd->stop_src == TRIG_COUNT &&
-			    async->scans_done >= cmd->stop_arg)
-				async->events |= COMEDI_CB_EOA;
-		}
-	}
-
-	/* if command is still running, resubmit urb */
-	if (!(async->events & COMEDI_CB_CANCEL_MASK)) {
-		urb->dev = comedi_to_usb_dev(dev);
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret < 0) {
-			dev_err(dev->class_dev, "urb resubmit failed (%d)\n",
-				ret);
-			if (ret == -EL2NSYNC)
-				dev_err(dev->class_dev,
-					"buggy USB host controller or bug in IRQ handler\n");
-			async->events |= COMEDI_CB_ERROR;
-		}
-	}
-}
-
-static void usbduxsigma_ai_urb_complete(struct urb *urb)
-{
-	struct comedi_device *dev = urb->context;
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->read_subdev;
-	struct comedi_async *async = s->async;
-
-	/* exit if not running a command, do not resubmit urb */
-	if (!devpriv->ai_cmd_running)
-		return;
-
-	switch (urb->status) {
-	case 0:
-		/* copy the result in the transfer buffer */
-		memcpy(devpriv->in_buf, urb->transfer_buffer, SIZEINBUF);
-		usbduxsigma_ai_handle_urb(dev, s, urb);
-		break;
-
-	case -EILSEQ:
-		/*
-		 * error in the ISOchronous data
-		 * we don't copy the data into the transfer buffer
-		 * and recycle the last data byte
-		 */
-		dev_dbg(dev->class_dev, "CRC error in ISO IN stream\n");
-		usbduxsigma_ai_handle_urb(dev, s, urb);
-		break;
-
-	case -ECONNRESET:
-	case -ENOENT:
-	case -ESHUTDOWN:
-	case -ECONNABORTED:
-		/* happens after an unlink command */
-		async->events |= COMEDI_CB_ERROR;
-		break;
-
-	default:
-		/* a real error */
-		dev_err(dev->class_dev, "non-zero urb status (%d)\n",
-			urb->status);
-		async->events |= COMEDI_CB_ERROR;
-		break;
-	}
-
-	/*
-	 * comedi_handle_events() cannot be used in this driver. The (*cancel)
-	 * operation would unlink the urb.
-	 */
-	if (async->events & COMEDI_CB_CANCEL_MASK)
-		usbduxsigma_ai_stop(dev, 0);
-
-	comedi_event(dev, s);
-}
-
-static void usbduxsigma_ao_stop(struct comedi_device *dev, int do_unlink)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-
-	if (do_unlink && devpriv->ao_urbs)
-		usbduxsigma_unlink_urbs(devpriv->ao_urbs, devpriv->n_ao_urbs);
-
-	devpriv->ao_cmd_running = 0;
-}
-
-static int usbduxsigma_ao_cancel(struct comedi_device *dev,
-				 struct comedi_subdevice *s)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-
-	down(&devpriv->sem);
-	/* unlink only if it is really running */
-	usbduxsigma_ao_stop(dev, devpriv->ao_cmd_running);
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-static void usbduxsigma_ao_handle_urb(struct comedi_device *dev,
-				      struct comedi_subdevice *s,
-				      struct urb *urb)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_async *async = s->async;
-	struct comedi_cmd *cmd = &async->cmd;
-	uint8_t *datap;
-	int ret;
-	int i;
-
-	devpriv->ao_counter--;
-	if (devpriv->ao_counter == 0) {
-		devpriv->ao_counter = devpriv->ao_timer;
-
-		if (cmd->stop_src == TRIG_COUNT &&
-		    async->scans_done >= cmd->stop_arg) {
-			async->events |= COMEDI_CB_EOA;
-			return;
-		}
-
-		/* transmit data to the USB bus */
-		datap = urb->transfer_buffer;
-		*datap++ = cmd->chanlist_len;
-		for (i = 0; i < cmd->chanlist_len; i++) {
-			unsigned int chan = CR_CHAN(cmd->chanlist[i]);
-			unsigned short val;
-
-			if (!comedi_buf_read_samples(s, &val, 1)) {
-				dev_err(dev->class_dev, "buffer underflow\n");
-				async->events |= COMEDI_CB_OVERFLOW;
-				return;
-			}
-
-			*datap++ = val;
-			*datap++ = chan;
-			s->readback[chan] = val;
-		}
-	}
-
-	/* if command is still running, resubmit urb */
-	if (!(async->events & COMEDI_CB_CANCEL_MASK)) {
-		urb->transfer_buffer_length = SIZEOUTBUF;
-		urb->dev = comedi_to_usb_dev(dev);
-		urb->status = 0;
-		urb->interval = 1;	/* (u)frames */
-		urb->number_of_packets = 1;
-		urb->iso_frame_desc[0].offset = 0;
-		urb->iso_frame_desc[0].length = SIZEOUTBUF;
-		urb->iso_frame_desc[0].status = 0;
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret < 0) {
-			dev_err(dev->class_dev, "urb resubmit failed (%d)\n",
-				ret);
-			if (ret == -EL2NSYNC)
-				dev_err(dev->class_dev,
-					"buggy USB host controller or bug in IRQ handler\n");
-			async->events |= COMEDI_CB_ERROR;
-		}
-	}
-}
-
-static void usbduxsigma_ao_urb_complete(struct urb *urb)
-{
-	struct comedi_device *dev = urb->context;
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_subdevice *s = dev->write_subdev;
-	struct comedi_async *async = s->async;
-
-	/* exit if not running a command, do not resubmit urb */
-	if (!devpriv->ao_cmd_running)
-		return;
-
-	switch (urb->status) {
-	case 0:
-		usbduxsigma_ao_handle_urb(dev, s, urb);
-		break;
-
-	case -ECONNRESET:
-	case -ENOENT:
-	case -ESHUTDOWN:
-	case -ECONNABORTED:
-		/* happens after an unlink command */
-		async->events |= COMEDI_CB_ERROR;
-		break;
-
-	default:
-		/* a real error */
-		dev_err(dev->class_dev, "non-zero urb status (%d)\n",
-			urb->status);
-		async->events |= COMEDI_CB_ERROR;
-		break;
-	}
-
-	/*
-	 * comedi_handle_events() cannot be used in this driver. The (*cancel)
-	 * operation would unlink the urb.
-	 */
-	if (async->events & COMEDI_CB_CANCEL_MASK)
-		usbduxsigma_ao_stop(dev, 0);
-
-	comedi_event(dev, s);
-}
-
-static int usbduxsigma_submit_urbs(struct comedi_device *dev,
-				   struct urb **urbs, int num_urbs,
-				   int input_urb)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct urb *urb;
-	int ret;
-	int i;
-
-	/* Submit all URBs and start the transfer on the bus */
-	for (i = 0; i < num_urbs; i++) {
-		urb = urbs[i];
-
-		/* in case of a resubmission after an unlink... */
-		if (input_urb)
-			urb->interval = 1;
-		urb->context = dev;
-		urb->dev = usb;
-		urb->status = 0;
-		urb->transfer_flags = URB_ISO_ASAP;
-
-		ret = usb_submit_urb(urb, GFP_ATOMIC);
-		if (ret)
-			return ret;
-	}
-	return 0;
-}
-
-static int usbduxsigma_chans_to_interval(int num_chan)
-{
-	if (num_chan <= 2)
-		return 2;	/* 4kHz */
-	if (num_chan <= 8)
-		return 4;	/* 2kHz */
-	return 8;		/* 1kHz */
-}
-
-static int usbduxsigma_ai_cmdtest(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_cmd *cmd)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	int high_speed = devpriv->high_speed;
-	int interval = usbduxsigma_chans_to_interval(cmd->chanlist_len);
-	unsigned int tmp;
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err)
-		return 1;
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	if (high_speed) {
-		/*
-		 * In high speed mode microframes are possible.
-		 * However, during one microframe we can roughly
-		 * sample two channels. Thus, the more channels
-		 * are in the channel list the more time we need.
-		 */
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    (125000 * interval));
-	} else {
-		/* full speed */
-		/* 1kHz scans every USB frame */
-		err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg,
-						    1000000);
-	}
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	tmp = rounddown(cmd->scan_begin_arg, high_speed ? 125000 : 1000000);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, tmp);
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-/*
- * creates the ADC command for the MAX1271
- * range is the range value from comedi
- */
-static void create_adc_command(unsigned int chan,
-			       uint8_t *muxsg0,
-			       uint8_t *muxsg1)
-{
-	if (chan < 8)
-		(*muxsg0) = (*muxsg0) | (1 << chan);
-	else if (chan < 16)
-		(*muxsg1) = (*muxsg1) | (1 << (chan-8));
-}
-
-static int usbbuxsigma_send_cmd(struct comedi_device *dev, int cmd_type)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxsigma_private *devpriv = dev->private;
-	int nsent;
-
-	devpriv->dux_commands[0] = cmd_type;
-
-	return usb_bulk_msg(usb, usb_sndbulkpipe(usb, 1),
-			    devpriv->dux_commands, SIZEOFDUXBUFFER,
-			    &nsent, BULK_TIMEOUT);
-}
-
-static int usbduxsigma_receive_cmd(struct comedi_device *dev, int command)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxsigma_private *devpriv = dev->private;
-	int nrec;
-	int ret;
-	int i;
-
-	for (i = 0; i < RETRIES; i++) {
-		ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, 8),
-				   devpriv->insn_buf, SIZEINSNBUF,
-				   &nrec, BULK_TIMEOUT);
-		if (ret < 0)
-			return ret;
-
-		if (devpriv->insn_buf[0] == command)
-			return 0;
-	}
-	/*
-	 * This is only reached if the data has been requested a
-	 * couple of times and the command was not received.
-	 */
-	return -EFAULT;
-}
-
-static int usbduxsigma_ai_inttrig(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int trig_num)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	down(&devpriv->sem);
-	if (!devpriv->ai_cmd_running) {
-		devpriv->ai_cmd_running = 1;
-		ret = usbduxsigma_submit_urbs(dev, devpriv->ai_urbs,
-					      devpriv->n_ai_urbs, 1);
-		if (ret < 0) {
-			devpriv->ai_cmd_running = 0;
-			up(&devpriv->sem);
-			return ret;
-		}
-		s->async->inttrig = NULL;
-	}
-	up(&devpriv->sem);
-
-	return 1;
-}
-
-static int usbduxsigma_ai_cmd(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int len = cmd->chanlist_len;
-	uint8_t muxsg0 = 0;
-	uint8_t muxsg1 = 0;
-	uint8_t sysred = 0;
-	int ret;
-	int i;
-
-	down(&devpriv->sem);
-
-	if (devpriv->high_speed) {
-		/*
-		 * every 2 channels get a time window of 125us. Thus, if we
-		 * sample all 16 channels we need 1ms. If we sample only one
-		 * channel we need only 125us
-		 */
-		unsigned int interval = usbduxsigma_chans_to_interval(len);
-
-		devpriv->ai_interval = interval;
-		devpriv->ai_timer = cmd->scan_begin_arg / (125000 * interval);
-	} else {
-		/* interval always 1ms */
-		devpriv->ai_interval = 1;
-		devpriv->ai_timer = cmd->scan_begin_arg / 1000000;
-	}
-
-	for (i = 0; i < len; i++) {
-		unsigned int chan  = CR_CHAN(cmd->chanlist[i]);
-
-		create_adc_command(chan, &muxsg0, &muxsg1);
-	}
-
-	devpriv->dux_commands[1] = devpriv->ai_interval;
-	devpriv->dux_commands[2] = len;  /* num channels per time step */
-	devpriv->dux_commands[3] = 0x12; /* CONFIG0 */
-	devpriv->dux_commands[4] = 0x03; /* CONFIG1: 23kHz sample, delay 0us */
-	devpriv->dux_commands[5] = 0x00; /* CONFIG3: diff. channels off */
-	devpriv->dux_commands[6] = muxsg0;
-	devpriv->dux_commands[7] = muxsg1;
-	devpriv->dux_commands[8] = sysred;
-
-	ret = usbbuxsigma_send_cmd(dev, USBBUXSIGMA_AD_CMD);
-	if (ret < 0) {
-		up(&devpriv->sem);
-		return ret;
-	}
-
-	devpriv->ai_counter = devpriv->ai_timer;
-
-	if (cmd->start_src == TRIG_NOW) {
-		/* enable this acquisition operation */
-		devpriv->ai_cmd_running = 1;
-		ret = usbduxsigma_submit_urbs(dev, devpriv->ai_urbs,
-					      devpriv->n_ai_urbs, 1);
-		if (ret < 0) {
-			devpriv->ai_cmd_running = 0;
-			up(&devpriv->sem);
-			return ret;
-		}
-		s->async->inttrig = NULL;
-	} else {	/* TRIG_INT */
-		s->async->inttrig = usbduxsigma_ai_inttrig;
-	}
-
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-static int usbduxsigma_ai_insn_read(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	uint8_t muxsg0 = 0;
-	uint8_t muxsg1 = 0;
-	uint8_t sysred = 0;
-	int ret;
-	int i;
-
-	down(&devpriv->sem);
-	if (devpriv->ai_cmd_running) {
-		up(&devpriv->sem);
-		return -EBUSY;
-	}
-
-	create_adc_command(chan, &muxsg0, &muxsg1);
-
-	/* Mode 0 is used to get a single conversion on demand */
-	devpriv->dux_commands[1] = 0x16; /* CONFIG0: chopper on */
-	devpriv->dux_commands[2] = 0x80; /* CONFIG1: 2kHz sampling rate */
-	devpriv->dux_commands[3] = 0x00; /* CONFIG3: diff. channels off */
-	devpriv->dux_commands[4] = muxsg0;
-	devpriv->dux_commands[5] = muxsg1;
-	devpriv->dux_commands[6] = sysred;
-
-	/* adc commands */
-	ret = usbbuxsigma_send_cmd(dev, USBDUXSIGMA_SINGLE_AD_CMD);
-	if (ret < 0) {
-		up(&devpriv->sem);
-		return ret;
-	}
-
-	for (i = 0; i < insn->n; i++) {
-		uint32_t val;
-
-		ret = usbduxsigma_receive_cmd(dev, USBDUXSIGMA_SINGLE_AD_CMD);
-		if (ret < 0) {
-			up(&devpriv->sem);
-			return ret;
-		}
-
-		/* 32 bits big endian from the A/D converter */
-		val = be32_to_cpu(get_unaligned((__be32
-						 *)(devpriv->insn_buf + 1)));
-		val &= 0x00ffffff;	/* strip status byte */
-		val ^= 0x00800000;	/* convert to unsigned */
-
-		data[i] = val;
-	}
-	up(&devpriv->sem);
-
-	return insn->n;
-}
-
-static int usbduxsigma_ao_insn_read(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    struct comedi_insn *insn,
-				    unsigned int *data)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	int ret;
-
-	down(&devpriv->sem);
-	ret = comedi_readback_insn_read(dev, s, insn, data);
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static int usbduxsigma_ao_insn_write(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int ret;
-	int i;
-
-	down(&devpriv->sem);
-	if (devpriv->ao_cmd_running) {
-		up(&devpriv->sem);
-		return -EBUSY;
-	}
-
-	for (i = 0; i < insn->n; i++) {
-		devpriv->dux_commands[1] = 1;		/* num channels */
-		devpriv->dux_commands[2] = data[i];	/* value */
-		devpriv->dux_commands[3] = chan;	/* channel number */
-		ret = usbbuxsigma_send_cmd(dev, USBDUXSIGMA_DA_CMD);
-		if (ret < 0) {
-			up(&devpriv->sem);
-			return ret;
-		}
-		s->readback[chan] = data[i];
-	}
-	up(&devpriv->sem);
-
-	return insn->n;
-}
-
-static int usbduxsigma_ao_inttrig(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int trig_num)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	if (trig_num != cmd->start_arg)
-		return -EINVAL;
-
-	down(&devpriv->sem);
-	if (!devpriv->ao_cmd_running) {
-		devpriv->ao_cmd_running = 1;
-		ret = usbduxsigma_submit_urbs(dev, devpriv->ao_urbs,
-					      devpriv->n_ao_urbs, 0);
-		if (ret < 0) {
-			devpriv->ao_cmd_running = 0;
-			up(&devpriv->sem);
-			return ret;
-		}
-		s->async->inttrig = NULL;
-	}
-	up(&devpriv->sem);
-
-	return 1;
-}
-
-static int usbduxsigma_ao_cmdtest(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_cmd *cmd)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	unsigned int tmp;
-	int err = 0;
-
-	/* Step 1 : check if triggers are trivially valid */
-
-	err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_INT);
-
-	/*
-	 * For now, always use "scan" timing with all channels updated at once
-	 * (cmd->scan_begin_src == TRIG_TIMER, cmd->convert_src == TRIG_NOW).
-	 *
-	 * In a future version, "convert" timing with channels updated
-	 * indivually may be supported in high speed mode
-	 * (cmd->scan_begin_src == TRIG_FOLLOW, cmd->convert_src == TRIG_TIMER).
-	 */
-	err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_TIMER);
-	err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_NOW);
-	err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
-	err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
-
-	if (err) {
-		up(&devpriv->sem);
-		return 1;
-	}
-
-	/* Step 2a : make sure trigger sources are unique */
-
-	err |= comedi_check_trigger_is_unique(cmd->start_src);
-	err |= comedi_check_trigger_is_unique(cmd->stop_src);
-
-	/* Step 2b : and mutually compatible */
-
-	if (err)
-		return 2;
-
-	/* Step 3: check if arguments are trivially valid */
-
-	err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
-
-	err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, 1000000);
-
-	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
-					   cmd->chanlist_len);
-
-	if (cmd->stop_src == TRIG_COUNT)
-		err |= comedi_check_trigger_arg_min(&cmd->stop_arg, 1);
-	else	/* TRIG_NONE */
-		err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
-	if (err)
-		return 3;
-
-	/* Step 4: fix up any arguments */
-
-	tmp = rounddown(cmd->scan_begin_arg, 1000000);
-	err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, tmp);
-
-	if (err)
-		return 4;
-
-	return 0;
-}
-
-static int usbduxsigma_ao_cmd(struct comedi_device *dev,
-			      struct comedi_subdevice *s)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct comedi_cmd *cmd = &s->async->cmd;
-	int ret;
-
-	down(&devpriv->sem);
-
-	/*
-	 * For now, only "scan" timing is supported.  A future version may
-	 * support "convert" timing in high speed mode.
-	 *
-	 * Timing of the scan: every 1ms all channels updated at once.
-	 */
-	devpriv->ao_timer = cmd->scan_begin_arg / 1000000;
-
-	devpriv->ao_counter = devpriv->ao_timer;
-
-	if (cmd->start_src == TRIG_NOW) {
-		/* enable this acquisition operation */
-		devpriv->ao_cmd_running = 1;
-		ret = usbduxsigma_submit_urbs(dev, devpriv->ao_urbs,
-					      devpriv->n_ao_urbs, 0);
-		if (ret < 0) {
-			devpriv->ao_cmd_running = 0;
-			up(&devpriv->sem);
-			return ret;
-		}
-		s->async->inttrig = NULL;
-	} else {	/* TRIG_INT */
-		s->async->inttrig = usbduxsigma_ao_inttrig;
-	}
-
-	up(&devpriv->sem);
-
-	return 0;
-}
-
-static int usbduxsigma_dio_insn_config(struct comedi_device *dev,
-				       struct comedi_subdevice *s,
-				       struct comedi_insn *insn,
-				       unsigned int *data)
-{
-	int ret;
-
-	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
-	if (ret)
-		return ret;
-
-	/*
-	 * We don't tell the firmware here as it would take 8 frames
-	 * to submit the information. We do it in the (*insn_bits).
-	 */
-	return insn->n;
-}
-
-static int usbduxsigma_dio_insn_bits(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	int ret;
-
-	down(&devpriv->sem);
-
-	comedi_dio_update_state(s, data);
-
-	/* Always update the hardware. See the (*insn_config). */
-	devpriv->dux_commands[1] = s->io_bits & 0xff;
-	devpriv->dux_commands[4] = s->state & 0xff;
-	devpriv->dux_commands[2] = (s->io_bits >> 8) & 0xff;
-	devpriv->dux_commands[5] = (s->state >> 8) & 0xff;
-	devpriv->dux_commands[3] = (s->io_bits >> 16) & 0xff;
-	devpriv->dux_commands[6] = (s->state >> 16) & 0xff;
-
-	ret = usbbuxsigma_send_cmd(dev, USBDUXSIGMA_DIO_BITS_CMD);
-	if (ret < 0)
-		goto done;
-	ret = usbduxsigma_receive_cmd(dev, USBDUXSIGMA_DIO_BITS_CMD);
-	if (ret < 0)
-		goto done;
-
-	s->state = devpriv->insn_buf[1] |
-		   (devpriv->insn_buf[2] << 8) |
-		   (devpriv->insn_buf[3] << 16);
-
-	data[1] = s->state;
-	ret = insn->n;
-
-done:
-	up(&devpriv->sem);
-
-	return ret;
-}
-
-static void usbduxsigma_pwm_stop(struct comedi_device *dev, int do_unlink)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-
-	if (do_unlink) {
-		if (devpriv->pwm_urb)
-			usb_kill_urb(devpriv->pwm_urb);
-	}
-
-	devpriv->pwm_cmd_running = 0;
-}
-
-static int usbduxsigma_pwm_cancel(struct comedi_device *dev,
-				  struct comedi_subdevice *s)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-
-	/* unlink only if it is really running */
-	usbduxsigma_pwm_stop(dev, devpriv->pwm_cmd_running);
-
-	return usbbuxsigma_send_cmd(dev, USBDUXSIGMA_PWM_OFF_CMD);
-}
-
-static void usbduxsigma_pwm_urb_complete(struct urb *urb)
-{
-	struct comedi_device *dev = urb->context;
-	struct usbduxsigma_private *devpriv = dev->private;
-	int ret;
-
-	switch (urb->status) {
-	case 0:
-		/* success */
-		break;
-
-	case -ECONNRESET:
-	case -ENOENT:
-	case -ESHUTDOWN:
-	case -ECONNABORTED:
-		/* happens after an unlink command */
-		if (devpriv->pwm_cmd_running)
-			usbduxsigma_pwm_stop(dev, 0);	/* w/o unlink */
-		return;
-
-	default:
-		/* a real error */
-		if (devpriv->pwm_cmd_running) {
-			dev_err(dev->class_dev, "non-zero urb status (%d)\n",
-				urb->status);
-			usbduxsigma_pwm_stop(dev, 0);	/* w/o unlink */
-		}
-		return;
-	}
-
-	if (!devpriv->pwm_cmd_running)
-		return;
-
-	urb->transfer_buffer_length = devpriv->pwm_buf_sz;
-	urb->dev = comedi_to_usb_dev(dev);
-	urb->status = 0;
-	ret = usb_submit_urb(urb, GFP_ATOMIC);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "urb resubmit failed (%d)\n", ret);
-		if (ret == -EL2NSYNC)
-			dev_err(dev->class_dev,
-				"buggy USB host controller or bug in IRQ handler\n");
-		usbduxsigma_pwm_stop(dev, 0);	/* w/o unlink */
-	}
-}
-
-static int usbduxsigma_submit_pwm_urb(struct comedi_device *dev)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct urb *urb = devpriv->pwm_urb;
-
-	/* in case of a resubmission after an unlink... */
-	usb_fill_bulk_urb(urb, usb, usb_sndbulkpipe(usb, 4),
-			  urb->transfer_buffer, devpriv->pwm_buf_sz,
-			  usbduxsigma_pwm_urb_complete, dev);
-
-	return usb_submit_urb(urb, GFP_ATOMIC);
-}
-
-static int usbduxsigma_pwm_period(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  unsigned int period)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	int fx2delay = 255;
-
-	if (period < MIN_PWM_PERIOD)
-		return -EAGAIN;
-
-	fx2delay = (period / (6 * 512 * 1000 / 33)) - 6;
-	if (fx2delay > 255)
-		return -EAGAIN;
-
-	devpriv->pwm_delay = fx2delay;
-	devpriv->pwm_period = period;
-	return 0;
-}
-
-static int usbduxsigma_pwm_start(struct comedi_device *dev,
-				 struct comedi_subdevice *s)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	int ret;
-
-	if (devpriv->pwm_cmd_running)
-		return 0;
-
-	devpriv->dux_commands[1] = devpriv->pwm_delay;
-	ret = usbbuxsigma_send_cmd(dev, USBDUXSIGMA_PWM_ON_CMD);
-	if (ret < 0)
-		return ret;
-
-	memset(devpriv->pwm_urb->transfer_buffer, 0, devpriv->pwm_buf_sz);
-
-	devpriv->pwm_cmd_running = 1;
-	ret = usbduxsigma_submit_pwm_urb(dev);
-	if (ret < 0) {
-		devpriv->pwm_cmd_running = 0;
-		return ret;
-	}
-
-	return 0;
-}
-
-static void usbduxsigma_pwm_pattern(struct comedi_device *dev,
-				    struct comedi_subdevice *s,
-				    unsigned int chan,
-				    unsigned int value,
-				    unsigned int sign)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	char pwm_mask = (1 << chan);	/* DIO bit for the PWM data */
-	char sgn_mask = (16 << chan);	/* DIO bit for the sign */
-	char *buf = (char *)(devpriv->pwm_urb->transfer_buffer);
-	int szbuf = devpriv->pwm_buf_sz;
-	int i;
-
-	for (i = 0; i < szbuf; i++) {
-		char c = *buf;
-
-		c &= ~pwm_mask;
-		if (i < value)
-			c |= pwm_mask;
-		if (!sign)
-			c &= ~sgn_mask;
-		else
-			c |= sgn_mask;
-		*buf++ = c;
-	}
-}
-
-static int usbduxsigma_pwm_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	/*
-	 * It doesn't make sense to support more than one value here
-	 * because it would just overwrite the PWM buffer.
-	 */
-	if (insn->n != 1)
-		return -EINVAL;
-
-	/*
-	 * The sign is set via a special INSN only, this gives us 8 bits
-	 * for normal operation, sign is 0 by default.
-	 */
-	usbduxsigma_pwm_pattern(dev, s, chan, data[0], 0);
-
-	return insn->n;
-}
-
-static int usbduxsigma_pwm_config(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-
-	switch (data[0]) {
-	case INSN_CONFIG_ARM:
-		/*
-		 * if not zero the PWM is limited to a certain time which is
-		 * not supported here
-		 */
-		if (data[1] != 0)
-			return -EINVAL;
-		return usbduxsigma_pwm_start(dev, s);
-	case INSN_CONFIG_DISARM:
-		return usbduxsigma_pwm_cancel(dev, s);
-	case INSN_CONFIG_GET_PWM_STATUS:
-		data[1] = devpriv->pwm_cmd_running;
-		return 0;
-	case INSN_CONFIG_PWM_SET_PERIOD:
-		return usbduxsigma_pwm_period(dev, s, data[1]);
-	case INSN_CONFIG_PWM_GET_PERIOD:
-		data[1] = devpriv->pwm_period;
-		return 0;
-	case INSN_CONFIG_PWM_SET_H_BRIDGE:
-		/*
-		 * data[1] = value
-		 * data[2] = sign (for a relay)
-		 */
-		usbduxsigma_pwm_pattern(dev, s, chan, data[1], (data[2] != 0));
-		return 0;
-	case INSN_CONFIG_PWM_GET_H_BRIDGE:
-		/* values are not kept in this driver, nothing to return */
-		return -EINVAL;
-	}
-	return -EINVAL;
-}
-
-static int usbduxsigma_getstatusinfo(struct comedi_device *dev, int chan)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	uint8_t sysred;
-	uint32_t val;
-	int ret;
-
-	switch (chan) {
-	default:
-	case 0:
-		sysred = 0;		/* ADC zero */
-		break;
-	case 1:
-		sysred = 1;		/* ADC offset */
-		break;
-	case 2:
-		sysred = 4;		/* VCC */
-		break;
-	case 3:
-		sysred = 8;		/* temperature */
-		break;
-	case 4:
-		sysred = 16;		/* gain */
-		break;
-	case 5:
-		sysred =  32;		/* ref */
-		break;
-	}
-
-	devpriv->dux_commands[1] = 0x12; /* CONFIG0 */
-	devpriv->dux_commands[2] = 0x80; /* CONFIG1: 2kHz sampling rate */
-	devpriv->dux_commands[3] = 0x00; /* CONFIG3: diff. channels off */
-	devpriv->dux_commands[4] = 0;
-	devpriv->dux_commands[5] = 0;
-	devpriv->dux_commands[6] = sysred;
-	ret = usbbuxsigma_send_cmd(dev, USBDUXSIGMA_SINGLE_AD_CMD);
-	if (ret < 0)
-		return ret;
-
-	ret = usbduxsigma_receive_cmd(dev, USBDUXSIGMA_SINGLE_AD_CMD);
-	if (ret < 0)
-		return ret;
-
-	/* 32 bits big endian from the A/D converter */
-	val = be32_to_cpu(get_unaligned((__be32 *)(devpriv->insn_buf + 1)));
-	val &= 0x00ffffff;	/* strip status byte */
-	val ^= 0x00800000;	/* convert to unsigned */
-
-	return (int)val;
-}
-
-static int usbduxsigma_firmware_upload(struct comedi_device *dev,
-				       const u8 *data, size_t size,
-				       unsigned long context)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	uint8_t *buf;
-	uint8_t *tmp;
-	int ret;
-
-	if (!data)
-		return 0;
-
-	if (size > FIRMWARE_MAX_LEN) {
-		dev_err(dev->class_dev, "firmware binary too large for FX2\n");
-		return -ENOMEM;
-	}
-
-	/* we generate a local buffer for the firmware */
-	buf = kmemdup(data, size, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	/* we need a malloc'ed buffer for usb_control_msg() */
-	tmp = kmalloc(1, GFP_KERNEL);
-	if (!tmp) {
-		kfree(buf);
-		return -ENOMEM;
-	}
-
-	/* stop the current firmware on the device */
-	*tmp = 1;	/* 7f92 to one */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUXSUB_FIRMWARE,
-			      VENDOR_DIR_OUT,
-			      USBDUXSUB_CPUCS, 0x0000,
-			      tmp, 1,
-			      BULK_TIMEOUT);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "can not stop firmware\n");
-		goto done;
-	}
-
-	/* upload the new firmware to the device */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUXSUB_FIRMWARE,
-			      VENDOR_DIR_OUT,
-			      0, 0x0000,
-			      buf, size,
-			      BULK_TIMEOUT);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "firmware upload failed\n");
-		goto done;
-	}
-
-	/* start the new firmware on the device */
-	*tmp = 0;	/* 7f92 to zero */
-	ret = usb_control_msg(usb, usb_sndctrlpipe(usb, 0),
-			      USBDUXSUB_FIRMWARE,
-			      VENDOR_DIR_OUT,
-			      USBDUXSUB_CPUCS, 0x0000,
-			      tmp, 1,
-			      BULK_TIMEOUT);
-	if (ret < 0)
-		dev_err(dev->class_dev, "can not start firmware\n");
-
-done:
-	kfree(tmp);
-	kfree(buf);
-	return ret;
-}
-
-static int usbduxsigma_alloc_usb_buffers(struct comedi_device *dev)
-{
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct urb *urb;
-	int i;
-
-	devpriv->dux_commands = kzalloc(SIZEOFDUXBUFFER, GFP_KERNEL);
-	devpriv->in_buf = kzalloc(SIZEINBUF, GFP_KERNEL);
-	devpriv->insn_buf = kzalloc(SIZEINSNBUF, GFP_KERNEL);
-	devpriv->ai_urbs = kcalloc(devpriv->n_ai_urbs, sizeof(urb), GFP_KERNEL);
-	devpriv->ao_urbs = kcalloc(devpriv->n_ao_urbs, sizeof(urb), GFP_KERNEL);
-	if (!devpriv->dux_commands || !devpriv->in_buf || !devpriv->insn_buf ||
-	    !devpriv->ai_urbs || !devpriv->ao_urbs)
-		return -ENOMEM;
-
-	for (i = 0; i < devpriv->n_ai_urbs; i++) {
-		/* one frame: 1ms */
-		urb = usb_alloc_urb(1, GFP_KERNEL);
-		if (!urb)
-			return -ENOMEM;
-		devpriv->ai_urbs[i] = urb;
-		urb->dev = usb;
-		/* will be filled later with a pointer to the comedi-device */
-		/* and ONLY then the urb should be submitted */
-		urb->context = NULL;
-		urb->pipe = usb_rcvisocpipe(usb, 6);
-		urb->transfer_flags = URB_ISO_ASAP;
-		urb->transfer_buffer = kzalloc(SIZEINBUF, GFP_KERNEL);
-		if (!urb->transfer_buffer)
-			return -ENOMEM;
-		urb->complete = usbduxsigma_ai_urb_complete;
-		urb->number_of_packets = 1;
-		urb->transfer_buffer_length = SIZEINBUF;
-		urb->iso_frame_desc[0].offset = 0;
-		urb->iso_frame_desc[0].length = SIZEINBUF;
-	}
-
-	for (i = 0; i < devpriv->n_ao_urbs; i++) {
-		/* one frame: 1ms */
-		urb = usb_alloc_urb(1, GFP_KERNEL);
-		if (!urb)
-			return -ENOMEM;
-		devpriv->ao_urbs[i] = urb;
-		urb->dev = usb;
-		/* will be filled later with a pointer to the comedi-device */
-		/* and ONLY then the urb should be submitted */
-		urb->context = NULL;
-		urb->pipe = usb_sndisocpipe(usb, 2);
-		urb->transfer_flags = URB_ISO_ASAP;
-		urb->transfer_buffer = kzalloc(SIZEOUTBUF, GFP_KERNEL);
-		if (!urb->transfer_buffer)
-			return -ENOMEM;
-		urb->complete = usbduxsigma_ao_urb_complete;
-		urb->number_of_packets = 1;
-		urb->transfer_buffer_length = SIZEOUTBUF;
-		urb->iso_frame_desc[0].offset = 0;
-		urb->iso_frame_desc[0].length = SIZEOUTBUF;
-		urb->interval = 1;	/* (u)frames */
-	}
-
-	if (devpriv->pwm_buf_sz) {
-		urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!urb)
-			return -ENOMEM;
-		devpriv->pwm_urb = urb;
-
-		urb->transfer_buffer = kzalloc(devpriv->pwm_buf_sz,
-					       GFP_KERNEL);
-		if (!urb->transfer_buffer)
-			return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static void usbduxsigma_free_usb_buffers(struct comedi_device *dev)
-{
-	struct usbduxsigma_private *devpriv = dev->private;
-	struct urb *urb;
-	int i;
-
-	urb = devpriv->pwm_urb;
-	if (urb) {
-		kfree(urb->transfer_buffer);
-		usb_free_urb(urb);
-	}
-	if (devpriv->ao_urbs) {
-		for (i = 0; i < devpriv->n_ao_urbs; i++) {
-			urb = devpriv->ao_urbs[i];
-			if (urb) {
-				kfree(urb->transfer_buffer);
-				usb_free_urb(urb);
-			}
-		}
-		kfree(devpriv->ao_urbs);
-	}
-	if (devpriv->ai_urbs) {
-		for (i = 0; i < devpriv->n_ai_urbs; i++) {
-			urb = devpriv->ai_urbs[i];
-			if (urb) {
-				kfree(urb->transfer_buffer);
-				usb_free_urb(urb);
-			}
-		}
-		kfree(devpriv->ai_urbs);
-	}
-	kfree(devpriv->insn_buf);
-	kfree(devpriv->in_buf);
-	kfree(devpriv->dux_commands);
-}
-
-static int usbduxsigma_auto_attach(struct comedi_device *dev,
-				   unsigned long context_unused)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usbduxsigma_private *devpriv;
-	struct comedi_subdevice *s;
-	int offset;
-	int ret;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	sema_init(&devpriv->sem, 1);
-
-	usb_set_intfdata(intf, devpriv);
-
-	devpriv->high_speed = (usb->speed == USB_SPEED_HIGH);
-	if (devpriv->high_speed) {
-		devpriv->n_ai_urbs = NUMOFINBUFFERSHIGH;
-		devpriv->n_ao_urbs = NUMOFOUTBUFFERSHIGH;
-		devpriv->pwm_buf_sz = 512;
-	} else {
-		devpriv->n_ai_urbs = NUMOFINBUFFERSFULL;
-		devpriv->n_ao_urbs = NUMOFOUTBUFFERSFULL;
-	}
-
-	ret = usbduxsigma_alloc_usb_buffers(dev);
-	if (ret)
-		return ret;
-
-	/* setting to alternate setting 3: enabling iso ep and bulk ep. */
-	ret = usb_set_interface(usb, intf->altsetting->desc.bInterfaceNumber,
-				3);
-	if (ret < 0) {
-		dev_err(dev->class_dev,
-			"could not set alternate setting 3 in high speed\n");
-		return ret;
-	}
-
-	ret = comedi_load_firmware(dev, &usb->dev, FIRMWARE,
-				   usbduxsigma_firmware_upload, 0);
-	if (ret)
-		return ret;
-
-	ret = comedi_alloc_subdevices(dev, (devpriv->high_speed) ? 4 : 3);
-	if (ret)
-		return ret;
-
-	/* Analog Input subdevice */
-	s = &dev->subdevices[0];
-	dev->read_subdev = s;
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND | SDF_CMD_READ | SDF_LSAMPL;
-	s->n_chan	= NUMCHANNELS;
-	s->len_chanlist	= NUMCHANNELS;
-	s->maxdata	= 0x00ffffff;
-	s->range_table	= &usbduxsigma_ai_range;
-	s->insn_read	= usbduxsigma_ai_insn_read;
-	s->do_cmdtest	= usbduxsigma_ai_cmdtest;
-	s->do_cmd	= usbduxsigma_ai_cmd;
-	s->cancel	= usbduxsigma_ai_cancel;
-
-	/* Analog Output subdevice */
-	s = &dev->subdevices[1];
-	dev->write_subdev = s;
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE;
-	s->n_chan	= 4;
-	s->len_chanlist	= s->n_chan;
-	s->maxdata	= 0x00ff;
-	s->range_table	= &range_unipolar2_5;
-	s->insn_write	= usbduxsigma_ao_insn_write;
-	s->insn_read	= usbduxsigma_ao_insn_read;
-	s->do_cmdtest	= usbduxsigma_ao_cmdtest;
-	s->do_cmd	= usbduxsigma_ao_cmd;
-	s->cancel	= usbduxsigma_ao_cancel;
-
-	ret = comedi_alloc_subdev_readback(s);
-	if (ret)
-		return ret;
-
-	/* Digital I/O subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DIO;
-	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-	s->n_chan	= 24;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= usbduxsigma_dio_insn_bits;
-	s->insn_config	= usbduxsigma_dio_insn_config;
-
-	if (devpriv->high_speed) {
-		/* Timer / pwm subdevice */
-		s = &dev->subdevices[3];
-		s->type		= COMEDI_SUBD_PWM;
-		s->subdev_flags	= SDF_WRITABLE | SDF_PWM_HBRIDGE;
-		s->n_chan	= 8;
-		s->maxdata	= devpriv->pwm_buf_sz;
-		s->insn_write	= usbduxsigma_pwm_write;
-		s->insn_config	= usbduxsigma_pwm_config;
-
-		usbduxsigma_pwm_period(dev, s, PWM_DEFAULT_PERIOD);
-	}
-
-	offset = usbduxsigma_getstatusinfo(dev, 0);
-	if (offset < 0) {
-		dev_err(dev->class_dev,
-			"Communication to USBDUXSIGMA failed! Check firmware and cabling.\n");
-		return offset;
-	}
-
-	dev_info(dev->class_dev, "ADC_zero = %x\n", offset);
-
-	return 0;
-}
-
-static void usbduxsigma_detach(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usbduxsigma_private *devpriv = dev->private;
-
-	usb_set_intfdata(intf, NULL);
-
-	if (!devpriv)
-		return;
-
-	down(&devpriv->sem);
-
-	/* force unlink all urbs */
-	usbduxsigma_ai_stop(dev, 1);
-	usbduxsigma_ao_stop(dev, 1);
-	usbduxsigma_pwm_stop(dev, 1);
-
-	usbduxsigma_free_usb_buffers(dev);
-
-	up(&devpriv->sem);
-}
-
-static struct comedi_driver usbduxsigma_driver = {
-	.driver_name	= "usbduxsigma",
-	.module		= THIS_MODULE,
-	.auto_attach	= usbduxsigma_auto_attach,
-	.detach		= usbduxsigma_detach,
-};
-
-static int usbduxsigma_usb_probe(struct usb_interface *intf,
-				 const struct usb_device_id *id)
-{
-	return comedi_usb_auto_config(intf, &usbduxsigma_driver, 0);
-}
-
-static const struct usb_device_id usbduxsigma_usb_table[] = {
-	{ USB_DEVICE(0x13d8, 0x0020) },
-	{ USB_DEVICE(0x13d8, 0x0021) },
-	{ USB_DEVICE(0x13d8, 0x0022) },
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, usbduxsigma_usb_table);
-
-static struct usb_driver usbduxsigma_usb_driver = {
-	.name		= "usbduxsigma",
-	.probe		= usbduxsigma_usb_probe,
-	.disconnect	= comedi_usb_auto_unconfig,
-	.id_table	= usbduxsigma_usb_table,
-};
-module_comedi_usb_driver(usbduxsigma_driver, usbduxsigma_usb_driver);
-
-MODULE_AUTHOR("Bernd Porr, mail@berndporr.me.uk");
-MODULE_DESCRIPTION("Stirling/ITL USB-DUX SIGMA -- mail@berndporr.me.uk");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(FIRMWARE);
diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
deleted file mode 100644
index 3af075aa3946..000000000000
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ /dev/null
@@ -1,888 +0,0 @@
-/*
-    comedi/drivers/vmk80xx.c
-    Velleman USB Board Low-Level Driver
-
-    Copyright (C) 2009 Manuel Gebele <forensixs@gmx.de>, Germany
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
- * Driver: vmk80xx
- * Description: Velleman USB Board Low-Level Driver
- * Devices: [Velleman] K8055 (K8055/VM110), K8061 (K8061/VM140),
- *   VM110 (K8055/VM110), VM140 (K8061/VM140)
- * Author: Manuel Gebele <forensixs@gmx.de>
- * Updated: Sun, 10 May 2009 11:14:59 +0200
- * Status: works
- *
- * Supports:
- *  - analog input
- *  - analog output
- *  - digital input
- *  - digital output
- *  - counter
- *  - pwm
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/errno.h>
-#include <linux/input.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/uaccess.h>
-
-#include "../comedi_usb.h"
-
-enum {
-	DEVICE_VMK8055,
-	DEVICE_VMK8061
-};
-
-#define VMK8055_DI_REG          0x00
-#define VMK8055_DO_REG          0x01
-#define VMK8055_AO1_REG         0x02
-#define VMK8055_AO2_REG         0x03
-#define VMK8055_AI1_REG         0x02
-#define VMK8055_AI2_REG         0x03
-#define VMK8055_CNT1_REG        0x04
-#define VMK8055_CNT2_REG        0x06
-
-#define VMK8061_CH_REG          0x01
-#define VMK8061_DI_REG          0x01
-#define VMK8061_DO_REG          0x01
-#define VMK8061_PWM_REG1        0x01
-#define VMK8061_PWM_REG2        0x02
-#define VMK8061_CNT_REG         0x02
-#define VMK8061_AO_REG          0x02
-#define VMK8061_AI_REG1         0x02
-#define VMK8061_AI_REG2         0x03
-
-#define VMK8055_CMD_RST         0x00
-#define VMK8055_CMD_DEB1_TIME   0x01
-#define VMK8055_CMD_DEB2_TIME   0x02
-#define VMK8055_CMD_RST_CNT1    0x03
-#define VMK8055_CMD_RST_CNT2    0x04
-#define VMK8055_CMD_WRT_AD      0x05
-
-#define VMK8061_CMD_RD_AI       0x00
-#define VMK8061_CMR_RD_ALL_AI   0x01	/* !non-active! */
-#define VMK8061_CMD_SET_AO      0x02
-#define VMK8061_CMD_SET_ALL_AO  0x03	/* !non-active! */
-#define VMK8061_CMD_OUT_PWM     0x04
-#define VMK8061_CMD_RD_DI       0x05
-#define VMK8061_CMD_DO          0x06	/* !non-active! */
-#define VMK8061_CMD_CLR_DO      0x07
-#define VMK8061_CMD_SET_DO      0x08
-#define VMK8061_CMD_RD_CNT      0x09	/* TODO: completely pointless? */
-#define VMK8061_CMD_RST_CNT     0x0a	/* TODO: completely pointless? */
-#define VMK8061_CMD_RD_VERSION  0x0b	/* internal usage */
-#define VMK8061_CMD_RD_JMP_STAT 0x0c	/* TODO: not implemented yet */
-#define VMK8061_CMD_RD_PWR_STAT 0x0d	/* internal usage */
-#define VMK8061_CMD_RD_DO       0x0e
-#define VMK8061_CMD_RD_AO       0x0f
-#define VMK8061_CMD_RD_PWM      0x10
-
-#define IC3_VERSION             (1 << 0)
-#define IC6_VERSION             (1 << 1)
-
-enum vmk80xx_model {
-	VMK8055_MODEL,
-	VMK8061_MODEL
-};
-
-static const struct comedi_lrange vmk8061_range = {
-	2, {
-		UNI_RANGE(5),
-		UNI_RANGE(10)
-	}
-};
-
-struct vmk80xx_board {
-	const char *name;
-	enum vmk80xx_model model;
-	const struct comedi_lrange *range;
-	int ai_nchans;
-	unsigned int ai_maxdata;
-	int ao_nchans;
-	int di_nchans;
-	unsigned int cnt_maxdata;
-	int pwm_nchans;
-	unsigned int pwm_maxdata;
-};
-
-static const struct vmk80xx_board vmk80xx_boardinfo[] = {
-	[DEVICE_VMK8055] = {
-		.name		= "K8055 (VM110)",
-		.model		= VMK8055_MODEL,
-		.range		= &range_unipolar5,
-		.ai_nchans	= 2,
-		.ai_maxdata	= 0x00ff,
-		.ao_nchans	= 2,
-		.di_nchans	= 6,
-		.cnt_maxdata	= 0xffff,
-	},
-	[DEVICE_VMK8061] = {
-		.name		= "K8061 (VM140)",
-		.model		= VMK8061_MODEL,
-		.range		= &vmk8061_range,
-		.ai_nchans	= 8,
-		.ai_maxdata	= 0x03ff,
-		.ao_nchans	= 8,
-		.di_nchans	= 8,
-		.cnt_maxdata	= 0,	/* unknown, device is not writeable */
-		.pwm_nchans	= 1,
-		.pwm_maxdata	= 0x03ff,
-	},
-};
-
-struct vmk80xx_private {
-	struct usb_endpoint_descriptor *ep_rx;
-	struct usb_endpoint_descriptor *ep_tx;
-	struct semaphore limit_sem;
-	unsigned char *usb_rx_buf;
-	unsigned char *usb_tx_buf;
-	enum vmk80xx_model model;
-};
-
-static void vmk80xx_do_bulk_msg(struct comedi_device *dev)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	__u8 tx_addr;
-	__u8 rx_addr;
-	unsigned int tx_pipe;
-	unsigned int rx_pipe;
-	size_t size;
-
-	tx_addr = devpriv->ep_tx->bEndpointAddress;
-	rx_addr = devpriv->ep_rx->bEndpointAddress;
-	tx_pipe = usb_sndbulkpipe(usb, tx_addr);
-	rx_pipe = usb_rcvbulkpipe(usb, rx_addr);
-
-	/*
-	 * The max packet size attributes of the K8061
-	 * input/output endpoints are identical
-	 */
-	size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
-
-	usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf,
-		     size, NULL, devpriv->ep_tx->bInterval);
-	usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, size, NULL, HZ * 10);
-}
-
-static int vmk80xx_read_packet(struct comedi_device *dev)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usb_endpoint_descriptor *ep;
-	unsigned int pipe;
-
-	if (devpriv->model == VMK8061_MODEL) {
-		vmk80xx_do_bulk_msg(dev);
-		return 0;
-	}
-
-	ep = devpriv->ep_rx;
-	pipe = usb_rcvintpipe(usb, ep->bEndpointAddress);
-	return usb_interrupt_msg(usb, pipe, devpriv->usb_rx_buf,
-				 le16_to_cpu(ep->wMaxPacketSize), NULL,
-				 HZ * 10);
-}
-
-static int vmk80xx_write_packet(struct comedi_device *dev, int cmd)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	struct usb_device *usb = comedi_to_usb_dev(dev);
-	struct usb_endpoint_descriptor *ep;
-	unsigned int pipe;
-
-	devpriv->usb_tx_buf[0] = cmd;
-
-	if (devpriv->model == VMK8061_MODEL) {
-		vmk80xx_do_bulk_msg(dev);
-		return 0;
-	}
-
-	ep = devpriv->ep_tx;
-	pipe = usb_sndintpipe(usb, ep->bEndpointAddress);
-	return usb_interrupt_msg(usb, pipe, devpriv->usb_tx_buf,
-				 le16_to_cpu(ep->wMaxPacketSize), NULL,
-				 HZ * 10);
-}
-
-static int vmk80xx_reset_device(struct comedi_device *dev)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	size_t size;
-	int retval;
-
-	size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
-	memset(devpriv->usb_tx_buf, 0, size);
-	retval = vmk80xx_write_packet(dev, VMK8055_CMD_RST);
-	if (retval)
-		return retval;
-	/* set outputs to known state as we cannot read them */
-	return vmk80xx_write_packet(dev, VMK8055_CMD_WRT_AD);
-}
-
-static int vmk80xx_ai_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	int chan;
-	int reg[2];
-	int n;
-
-	down(&devpriv->limit_sem);
-	chan = CR_CHAN(insn->chanspec);
-
-	switch (devpriv->model) {
-	case VMK8055_MODEL:
-		if (!chan)
-			reg[0] = VMK8055_AI1_REG;
-		else
-			reg[0] = VMK8055_AI2_REG;
-		break;
-	case VMK8061_MODEL:
-	default:
-		reg[0] = VMK8061_AI_REG1;
-		reg[1] = VMK8061_AI_REG2;
-		devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_AI;
-		devpriv->usb_tx_buf[VMK8061_CH_REG] = chan;
-		break;
-	}
-
-	for (n = 0; n < insn->n; n++) {
-		if (vmk80xx_read_packet(dev))
-			break;
-
-		if (devpriv->model == VMK8055_MODEL) {
-			data[n] = devpriv->usb_rx_buf[reg[0]];
-			continue;
-		}
-
-		/* VMK8061_MODEL */
-		data[n] = devpriv->usb_rx_buf[reg[0]] + 256 *
-		    devpriv->usb_rx_buf[reg[1]];
-	}
-
-	up(&devpriv->limit_sem);
-
-	return n;
-}
-
-static int vmk80xx_ao_insn_write(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	int chan;
-	int cmd;
-	int reg;
-	int n;
-
-	down(&devpriv->limit_sem);
-	chan = CR_CHAN(insn->chanspec);
-
-	switch (devpriv->model) {
-	case VMK8055_MODEL:
-		cmd = VMK8055_CMD_WRT_AD;
-		if (!chan)
-			reg = VMK8055_AO1_REG;
-		else
-			reg = VMK8055_AO2_REG;
-		break;
-	default:		/* NOTE: avoid compiler warnings */
-		cmd = VMK8061_CMD_SET_AO;
-		reg = VMK8061_AO_REG;
-		devpriv->usb_tx_buf[VMK8061_CH_REG] = chan;
-		break;
-	}
-
-	for (n = 0; n < insn->n; n++) {
-		devpriv->usb_tx_buf[reg] = data[n];
-
-		if (vmk80xx_write_packet(dev, cmd))
-			break;
-	}
-
-	up(&devpriv->limit_sem);
-
-	return n;
-}
-
-static int vmk80xx_ao_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	int chan;
-	int reg;
-	int n;
-
-	down(&devpriv->limit_sem);
-	chan = CR_CHAN(insn->chanspec);
-
-	reg = VMK8061_AO_REG - 1;
-
-	devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_AO;
-
-	for (n = 0; n < insn->n; n++) {
-		if (vmk80xx_read_packet(dev))
-			break;
-
-		data[n] = devpriv->usb_rx_buf[reg + chan];
-	}
-
-	up(&devpriv->limit_sem);
-
-	return n;
-}
-
-static int vmk80xx_di_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	unsigned char *rx_buf;
-	int reg;
-	int retval;
-
-	down(&devpriv->limit_sem);
-
-	rx_buf = devpriv->usb_rx_buf;
-
-	if (devpriv->model == VMK8061_MODEL) {
-		reg = VMK8061_DI_REG;
-		devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_DI;
-	} else {
-		reg = VMK8055_DI_REG;
-	}
-
-	retval = vmk80xx_read_packet(dev);
-
-	if (!retval) {
-		if (devpriv->model == VMK8055_MODEL)
-			data[1] = (((rx_buf[reg] >> 4) & 0x03) |
-				  ((rx_buf[reg] << 2) & 0x04) |
-				  ((rx_buf[reg] >> 3) & 0x18));
-		else
-			data[1] = rx_buf[reg];
-
-		retval = 2;
-	}
-
-	up(&devpriv->limit_sem);
-
-	return retval;
-}
-
-static int vmk80xx_do_insn_bits(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn,
-				unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	unsigned char *rx_buf = devpriv->usb_rx_buf;
-	unsigned char *tx_buf = devpriv->usb_tx_buf;
-	int reg, cmd;
-	int ret = 0;
-
-	if (devpriv->model == VMK8061_MODEL) {
-		reg = VMK8061_DO_REG;
-		cmd = VMK8061_CMD_DO;
-	} else { /* VMK8055_MODEL */
-		reg = VMK8055_DO_REG;
-		cmd = VMK8055_CMD_WRT_AD;
-	}
-
-	down(&devpriv->limit_sem);
-
-	if (comedi_dio_update_state(s, data)) {
-		tx_buf[reg] = s->state;
-		ret = vmk80xx_write_packet(dev, cmd);
-		if (ret)
-			goto out;
-	}
-
-	if (devpriv->model == VMK8061_MODEL) {
-		tx_buf[0] = VMK8061_CMD_RD_DO;
-		ret = vmk80xx_read_packet(dev);
-		if (ret)
-			goto out;
-		data[1] = rx_buf[reg];
-	} else {
-		data[1] = s->state;
-	}
-
-out:
-	up(&devpriv->limit_sem);
-
-	return ret ? ret : insn->n;
-}
-
-static int vmk80xx_cnt_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	int chan;
-	int reg[2];
-	int n;
-
-	down(&devpriv->limit_sem);
-	chan = CR_CHAN(insn->chanspec);
-
-	switch (devpriv->model) {
-	case VMK8055_MODEL:
-		if (!chan)
-			reg[0] = VMK8055_CNT1_REG;
-		else
-			reg[0] = VMK8055_CNT2_REG;
-		break;
-	case VMK8061_MODEL:
-	default:
-		reg[0] = VMK8061_CNT_REG;
-		reg[1] = VMK8061_CNT_REG;
-		devpriv->usb_tx_buf[0] = VMK8061_CMD_RD_CNT;
-		break;
-	}
-
-	for (n = 0; n < insn->n; n++) {
-		if (vmk80xx_read_packet(dev))
-			break;
-
-		if (devpriv->model == VMK8055_MODEL)
-			data[n] = devpriv->usb_rx_buf[reg[0]];
-		else /* VMK8061_MODEL */
-			data[n] = devpriv->usb_rx_buf[reg[0] * (chan + 1) + 1]
-			    + 256 * devpriv->usb_rx_buf[reg[1] * 2 + 2];
-	}
-
-	up(&devpriv->limit_sem);
-
-	return n;
-}
-
-static int vmk80xx_cnt_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	unsigned int chan = CR_CHAN(insn->chanspec);
-	int cmd;
-	int reg;
-	int ret;
-
-	down(&devpriv->limit_sem);
-	switch (data[0]) {
-	case INSN_CONFIG_RESET:
-		if (devpriv->model == VMK8055_MODEL) {
-			if (!chan) {
-				cmd = VMK8055_CMD_RST_CNT1;
-				reg = VMK8055_CNT1_REG;
-			} else {
-				cmd = VMK8055_CMD_RST_CNT2;
-				reg = VMK8055_CNT2_REG;
-			}
-			devpriv->usb_tx_buf[reg] = 0x00;
-		} else {
-			cmd = VMK8061_CMD_RST_CNT;
-		}
-		ret = vmk80xx_write_packet(dev, cmd);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-	up(&devpriv->limit_sem);
-
-	return ret ? ret : insn->n;
-}
-
-static int vmk80xx_cnt_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	unsigned long debtime;
-	unsigned long val;
-	int chan;
-	int cmd;
-	int n;
-
-	down(&devpriv->limit_sem);
-	chan = CR_CHAN(insn->chanspec);
-
-	if (!chan)
-		cmd = VMK8055_CMD_DEB1_TIME;
-	else
-		cmd = VMK8055_CMD_DEB2_TIME;
-
-	for (n = 0; n < insn->n; n++) {
-		debtime = data[n];
-		if (debtime == 0)
-			debtime = 1;
-
-		/* TODO: Prevent overflows */
-		if (debtime > 7450)
-			debtime = 7450;
-
-		val = int_sqrt(debtime * 1000 / 115);
-		if (((val + 1) * val) < debtime * 1000 / 115)
-			val += 1;
-
-		devpriv->usb_tx_buf[6 + chan] = val;
-
-		if (vmk80xx_write_packet(dev, cmd))
-			break;
-	}
-
-	up(&devpriv->limit_sem);
-
-	return n;
-}
-
-static int vmk80xx_pwm_insn_read(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	unsigned char *tx_buf;
-	unsigned char *rx_buf;
-	int reg[2];
-	int n;
-
-	down(&devpriv->limit_sem);
-
-	tx_buf = devpriv->usb_tx_buf;
-	rx_buf = devpriv->usb_rx_buf;
-
-	reg[0] = VMK8061_PWM_REG1;
-	reg[1] = VMK8061_PWM_REG2;
-
-	tx_buf[0] = VMK8061_CMD_RD_PWM;
-
-	for (n = 0; n < insn->n; n++) {
-		if (vmk80xx_read_packet(dev))
-			break;
-
-		data[n] = rx_buf[reg[0]] + 4 * rx_buf[reg[1]];
-	}
-
-	up(&devpriv->limit_sem);
-
-	return n;
-}
-
-static int vmk80xx_pwm_insn_write(struct comedi_device *dev,
-				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn,
-				  unsigned int *data)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	unsigned char *tx_buf;
-	int reg[2];
-	int cmd;
-	int n;
-
-	down(&devpriv->limit_sem);
-
-	tx_buf = devpriv->usb_tx_buf;
-
-	reg[0] = VMK8061_PWM_REG1;
-	reg[1] = VMK8061_PWM_REG2;
-
-	cmd = VMK8061_CMD_OUT_PWM;
-
-	/*
-	 * The followin piece of code was translated from the inline
-	 * assembler code in the DLL source code.
-	 *
-	 * asm
-	 *   mov eax, k  ; k is the value (data[n])
-	 *   and al, 03h ; al are the lower 8 bits of eax
-	 *   mov lo, al  ; lo is the low part (tx_buf[reg[0]])
-	 *   mov eax, k
-	 *   shr eax, 2  ; right shift eax register by 2
-	 *   mov hi, al  ; hi is the high part (tx_buf[reg[1]])
-	 * end;
-	 */
-	for (n = 0; n < insn->n; n++) {
-		tx_buf[reg[0]] = (unsigned char)(data[n] & 0x03);
-		tx_buf[reg[1]] = (unsigned char)(data[n] >> 2) & 0xff;
-
-		if (vmk80xx_write_packet(dev, cmd))
-			break;
-	}
-
-	up(&devpriv->limit_sem);
-
-	return n;
-}
-
-static int vmk80xx_find_usb_endpoints(struct comedi_device *dev)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct usb_host_interface *iface_desc = intf->cur_altsetting;
-	struct usb_endpoint_descriptor *ep_desc;
-	int i;
-
-	if (iface_desc->desc.bNumEndpoints != 2)
-		return -ENODEV;
-
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
-		ep_desc = &iface_desc->endpoint[i].desc;
-
-		if (usb_endpoint_is_int_in(ep_desc) ||
-		    usb_endpoint_is_bulk_in(ep_desc)) {
-			if (!devpriv->ep_rx)
-				devpriv->ep_rx = ep_desc;
-			continue;
-		}
-
-		if (usb_endpoint_is_int_out(ep_desc) ||
-		    usb_endpoint_is_bulk_out(ep_desc)) {
-			if (!devpriv->ep_tx)
-				devpriv->ep_tx = ep_desc;
-			continue;
-		}
-	}
-
-	if (!devpriv->ep_rx || !devpriv->ep_tx)
-		return -ENODEV;
-
-	return 0;
-}
-
-static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev)
-{
-	struct vmk80xx_private *devpriv = dev->private;
-	size_t size;
-
-	size = le16_to_cpu(devpriv->ep_rx->wMaxPacketSize);
-	devpriv->usb_rx_buf = kzalloc(size, GFP_KERNEL);
-	if (!devpriv->usb_rx_buf)
-		return -ENOMEM;
-
-	size = le16_to_cpu(devpriv->ep_tx->wMaxPacketSize);
-	devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
-	if (!devpriv->usb_tx_buf) {
-		kfree(devpriv->usb_rx_buf);
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static int vmk80xx_init_subdevices(struct comedi_device *dev)
-{
-	const struct vmk80xx_board *board = dev->board_ptr;
-	struct vmk80xx_private *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	int n_subd;
-	int ret;
-
-	down(&devpriv->limit_sem);
-
-	if (devpriv->model == VMK8055_MODEL)
-		n_subd = 5;
-	else
-		n_subd = 6;
-	ret = comedi_alloc_subdevices(dev, n_subd);
-	if (ret) {
-		up(&devpriv->limit_sem);
-		return ret;
-	}
-
-	/* Analog input subdevice */
-	s = &dev->subdevices[0];
-	s->type		= COMEDI_SUBD_AI;
-	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	s->n_chan	= board->ai_nchans;
-	s->maxdata	= board->ai_maxdata;
-	s->range_table	= board->range;
-	s->insn_read	= vmk80xx_ai_insn_read;
-
-	/* Analog output subdevice */
-	s = &dev->subdevices[1];
-	s->type		= COMEDI_SUBD_AO;
-	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
-	s->n_chan	= board->ao_nchans;
-	s->maxdata	= 0x00ff;
-	s->range_table	= board->range;
-	s->insn_write	= vmk80xx_ao_insn_write;
-	if (devpriv->model == VMK8061_MODEL) {
-		s->subdev_flags	|= SDF_READABLE;
-		s->insn_read	= vmk80xx_ao_insn_read;
-	}
-
-	/* Digital input subdevice */
-	s = &dev->subdevices[2];
-	s->type		= COMEDI_SUBD_DI;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= board->di_nchans;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= vmk80xx_di_insn_bits;
-
-	/* Digital output subdevice */
-	s = &dev->subdevices[3];
-	s->type		= COMEDI_SUBD_DO;
-	s->subdev_flags	= SDF_WRITABLE;
-	s->n_chan	= 8;
-	s->maxdata	= 1;
-	s->range_table	= &range_digital;
-	s->insn_bits	= vmk80xx_do_insn_bits;
-
-	/* Counter subdevice */
-	s = &dev->subdevices[4];
-	s->type		= COMEDI_SUBD_COUNTER;
-	s->subdev_flags	= SDF_READABLE;
-	s->n_chan	= 2;
-	s->maxdata	= board->cnt_maxdata;
-	s->insn_read	= vmk80xx_cnt_insn_read;
-	s->insn_config	= vmk80xx_cnt_insn_config;
-	if (devpriv->model == VMK8055_MODEL) {
-		s->subdev_flags	|= SDF_WRITABLE;
-		s->insn_write	= vmk80xx_cnt_insn_write;
-	}
-
-	/* PWM subdevice */
-	if (devpriv->model == VMK8061_MODEL) {
-		s = &dev->subdevices[5];
-		s->type		= COMEDI_SUBD_PWM;
-		s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
-		s->n_chan	= board->pwm_nchans;
-		s->maxdata	= board->pwm_maxdata;
-		s->insn_read	= vmk80xx_pwm_insn_read;
-		s->insn_write	= vmk80xx_pwm_insn_write;
-	}
-
-	up(&devpriv->limit_sem);
-
-	return 0;
-}
-
-static int vmk80xx_auto_attach(struct comedi_device *dev,
-			       unsigned long context)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	const struct vmk80xx_board *board = NULL;
-	struct vmk80xx_private *devpriv;
-	int ret;
-
-	if (context < ARRAY_SIZE(vmk80xx_boardinfo))
-		board = &vmk80xx_boardinfo[context];
-	if (!board)
-		return -ENODEV;
-	dev->board_ptr = board;
-	dev->board_name = board->name;
-
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
-	devpriv->model = board->model;
-
-	ret = vmk80xx_find_usb_endpoints(dev);
-	if (ret)
-		return ret;
-
-	ret = vmk80xx_alloc_usb_buffers(dev);
-	if (ret)
-		return ret;
-
-	sema_init(&devpriv->limit_sem, 8);
-
-	usb_set_intfdata(intf, devpriv);
-
-	if (devpriv->model == VMK8055_MODEL)
-		vmk80xx_reset_device(dev);
-
-	return vmk80xx_init_subdevices(dev);
-}
-
-static void vmk80xx_detach(struct comedi_device *dev)
-{
-	struct usb_interface *intf = comedi_to_usb_interface(dev);
-	struct vmk80xx_private *devpriv = dev->private;
-
-	if (!devpriv)
-		return;
-
-	down(&devpriv->limit_sem);
-
-	usb_set_intfdata(intf, NULL);
-
-	kfree(devpriv->usb_rx_buf);
-	kfree(devpriv->usb_tx_buf);
-
-	up(&devpriv->limit_sem);
-}
-
-static struct comedi_driver vmk80xx_driver = {
-	.module		= THIS_MODULE,
-	.driver_name	= "vmk80xx",
-	.auto_attach	= vmk80xx_auto_attach,
-	.detach		= vmk80xx_detach,
-};
-
-static int vmk80xx_usb_probe(struct usb_interface *intf,
-			     const struct usb_device_id *id)
-{
-	return comedi_usb_auto_config(intf, &vmk80xx_driver, id->driver_info);
-}
-
-static const struct usb_device_id vmk80xx_usb_id_table[] = {
-	{ USB_DEVICE(0x10cf, 0x5500), .driver_info = DEVICE_VMK8055 },
-	{ USB_DEVICE(0x10cf, 0x5501), .driver_info = DEVICE_VMK8055 },
-	{ USB_DEVICE(0x10cf, 0x5502), .driver_info = DEVICE_VMK8055 },
-	{ USB_DEVICE(0x10cf, 0x5503), .driver_info = DEVICE_VMK8055 },
-	{ USB_DEVICE(0x10cf, 0x8061), .driver_info = DEVICE_VMK8061 },
-	{ USB_DEVICE(0x10cf, 0x8062), .driver_info = DEVICE_VMK8061 },
-	{ USB_DEVICE(0x10cf, 0x8063), .driver_info = DEVICE_VMK8061 },
-	{ USB_DEVICE(0x10cf, 0x8064), .driver_info = DEVICE_VMK8061 },
-	{ USB_DEVICE(0x10cf, 0x8065), .driver_info = DEVICE_VMK8061 },
-	{ USB_DEVICE(0x10cf, 0x8066), .driver_info = DEVICE_VMK8061 },
-	{ USB_DEVICE(0x10cf, 0x8067), .driver_info = DEVICE_VMK8061 },
-	{ USB_DEVICE(0x10cf, 0x8068), .driver_info = DEVICE_VMK8061 },
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, vmk80xx_usb_id_table);
-
-static struct usb_driver vmk80xx_usb_driver = {
-	.name		= "vmk80xx",
-	.id_table	= vmk80xx_usb_id_table,
-	.probe		= vmk80xx_usb_probe,
-	.disconnect	= comedi_usb_auto_unconfig,
-};
-module_comedi_usb_driver(vmk80xx_driver, vmk80xx_usb_driver);
-
-MODULE_AUTHOR("Manuel Gebele <forensixs@gmx.de>");
-MODULE_DESCRIPTION("Velleman USB Board Low-Level Driver");
-MODULE_SUPPORTED_DEVICE("K8055/K8061 aka VM110/VM140");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/comedi/drivers/z8536.h b/drivers/staging/comedi/drivers/z8536.h
deleted file mode 100644
index 7be53109cc8d..000000000000
--- a/drivers/staging/comedi/drivers/z8536.h
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * Z8536 CIO Internal registers
- */
-
-#ifndef _Z8536_H
-#define _Z8536_H
-
-/* Master Interrupt Control register */
-#define Z8536_INT_CTRL_REG		0x00
-#define Z8536_INT_CTRL_MIE		BIT(7)	/* Master Interrupt Enable */
-#define Z8536_INT_CTRL_DLC		BIT(6)	/* Disable Lower Chain */
-#define Z8536_INT_CTRL_NV		BIT(5)	/* No Vector */
-#define Z8536_INT_CTRL_PA_VIS		BIT(4)	/* Port A Vect Inc Status */
-#define Z8536_INT_CTRL_PB_VIS		BIT(3)	/* Port B Vect Inc Status */
-#define Z8536_INT_CTRL_VT_VIS		BIT(2)	/* C/T Vect Inc Status */
-#define Z8536_INT_CTRL_RJA		BIT(1)	/* Right Justified Addresses */
-#define Z8536_INT_CTRL_RESET		BIT(0)	/* Reset */
-
-/* Master Configuration Control register */
-#define Z8536_CFG_CTRL_REG		0x01
-#define Z8536_CFG_CTRL_PBE		BIT(7)	/* Port B Enable */
-#define Z8536_CFG_CTRL_CT1E		BIT(6)	/* C/T 1 Enable */
-#define Z8536_CFG_CTRL_CT2E		BIT(5)	/* C/T 2 Enable */
-#define Z8536_CFG_CTRL_PCE_CT3E		BIT(4)	/* Port C & C/T 3 Enable */
-#define Z8536_CFG_CTRL_PLC		BIT(3)	/* Port A/B Link Control */
-#define Z8536_CFG_CTRL_PAE		BIT(2)	/* Port A Enable */
-#define Z8536_CFG_CTRL_LC_INDEP		(0 << 0)/* C/Ts Independent */
-#define Z8536_CFG_CTRL_LC_GATE		(1 << 0)/* C/T 1 Out Gates C/T 2 */
-#define Z8536_CFG_CTRL_LC_TRIG		(2 << 0)/* C/T 1 Out Triggers C/T 2 */
-#define Z8536_CFG_CTRL_LC_CLK		(3 << 0)/* C/T 1 Out Clocks C/T 2 */
-#define Z8536_CFG_CTRL_LC_MASK		(3 << 0)/* C/T Link Control mask */
-
-/* Interrupt Vector registers */
-#define Z8536_PA_INT_VECT_REG		0x02
-#define Z8536_PB_INT_VECT_REG		0x03
-#define Z8536_CT_INT_VECT_REG		0x04
-#define Z8536_CURR_INT_VECT_REG		0x1f
-
-/* Port A/B & Counter/Timer 1/2/3 Command and Status registers */
-#define Z8536_PA_CMDSTAT_REG		0x08
-#define Z8536_PB_CMDSTAT_REG		0x09
-#define Z8536_CT1_CMDSTAT_REG		0x0a
-#define Z8536_CT2_CMDSTAT_REG		0x0b
-#define Z8536_CT3_CMDSTAT_REG		0x0c
-#define Z8536_CT_CMDSTAT_REG(x)		(0x0a + (x))
-#define Z8536_CMD_NULL			(0 << 5)/* Null Code */
-#define Z8536_CMD_CLR_IP_IUS		(1 << 5)/* Clear IP & IUS */
-#define Z8536_CMD_SET_IUS		(2 << 5)/* Set IUS */
-#define Z8536_CMD_CLR_IUS		(3 << 5)/* Clear IUS */
-#define Z8536_CMD_SET_IP		(4 << 5)/* Set IP */
-#define Z8536_CMD_CLR_IP		(5 << 5)/* Clear IP */
-#define Z8536_CMD_SET_IE		(6 << 5)/* Set IE */
-#define Z8536_CMD_CLR_IE		(7 << 5)/* Clear IE */
-#define Z8536_CMD_MASK			(7 << 5)
-
-#define Z8536_STAT_IUS			BIT(7)	/* Interrupt Under Service */
-#define Z8536_STAT_IE			BIT(6)	/* Interrupt Enable */
-#define Z8536_STAT_IP			BIT(5)	/* Interrupt Pending */
-#define Z8536_STAT_ERR			BIT(4)	/* Interrupt Error */
-#define Z8536_STAT_IE_IP		(Z8536_STAT_IE | Z8536_STAT_IP)
-
-#define Z8536_PAB_STAT_ORE		BIT(3)	/* Output Register Empty */
-#define Z8536_PAB_STAT_IRF		BIT(2)	/* Input Register Full */
-#define Z8536_PAB_STAT_PMF		BIT(1)	/* Pattern Match Flag */
-#define Z8536_PAB_CMDSTAT_IOE		BIT(0)	/* Interrupt On Error */
-
-#define Z8536_CT_CMD_RCC		BIT(3)	/* Read Counter Control */
-#define Z8536_CT_CMDSTAT_GCB		BIT(2)	/* Gate Command Bit */
-#define Z8536_CT_CMD_TCB		BIT(1)	/* Trigger Command Bit */
-#define Z8536_CT_STAT_CIP		BIT(0)	/* Count In Progress */
-
-/* Port Data registers */
-#define Z8536_PA_DATA_REG		0x0d
-#define Z8536_PB_DATA_REG		0x0e
-#define Z8536_PC_DATA_REG		0x0f
-
-/* Counter/Timer 1/2/3 Current Count registers */
-#define Z8536_CT1_VAL_MSB_REG		0x10
-#define Z8536_CT1_VAL_LSB_REG		0x11
-#define Z8536_CT2_VAL_MSB_REG		0x12
-#define Z8536_CT2_VAL_LSB_REG		0x13
-#define Z8536_CT3_VAL_MSB_REG		0x14
-#define Z8536_CT3_VAL_LSB_REG		0x15
-#define Z8536_CT_VAL_MSB_REG(x)		(0x10 + ((x) * 2))
-#define Z8536_CT_VAL_LSB_REG(x)		(0x11 + ((x) * 2))
-
-/* Counter/Timer 1/2/3 Time Constant registers */
-#define Z8536_CT1_RELOAD_MSB_REG	0x16
-#define Z8536_CT1_RELOAD_LSB_REG	0x17
-#define Z8536_CT2_RELOAD_MSB_REG	0x18
-#define Z8536_CT2_RELOAD_LSB_REG	0x19
-#define Z8536_CT3_RELOAD_MSB_REG	0x1a
-#define Z8536_CT3_RELOAD_LSB_REG	0x1b
-#define Z8536_CT_RELOAD_MSB_REG(x)	(0x16 + ((x) * 2))
-#define Z8536_CT_RELOAD_LSB_REG(x)	(0x17 + ((x) * 2))
-
-/* Counter/Timer 1/2/3 Mode Specification registers */
-#define Z8536_CT1_MODE_REG		0x1c
-#define Z8536_CT2_MODE_REG		0x1d
-#define Z8536_CT3_MODE_REG		0x1e
-#define Z8536_CT_MODE_REG(x)		(0x1c + (x))
-#define Z8536_CT_MODE_CSC		BIT(7)	/* Continuous/Single Cycle */
-#define Z8536_CT_MODE_EOE		BIT(6)	/* External Output Enable */
-#define Z8536_CT_MODE_ECE		BIT(5)	/* External Count Enable */
-#define Z8536_CT_MODE_ETE		BIT(4)	/* External Trigger Enable */
-#define Z8536_CT_MODE_EGE		BIT(3)	/* External Gate Enable */
-#define Z8536_CT_MODE_REB		BIT(2)	/* Retrigger Enable Bit */
-#define Z8536_CT_MODE_DCS_PULSE		(0 << 0)/* Duty Cycle - Pulse */
-#define Z8536_CT_MODE_DCS_ONESHOT	(1 << 0)/* Duty Cycle - One-Shot */
-#define Z8536_CT_MODE_DCS_SQRWAVE	(2 << 0)/* Duty Cycle - Square Wave */
-#define Z8536_CT_MODE_DCS_DO_NOT_USE	(3 << 0)/* Duty Cycle - Do Not Use */
-#define Z8536_CT_MODE_DCS_MASK		(3 << 0)/* Duty Cycle mask */
-
-/* Port A/B Mode Specification registers */
-#define Z8536_PA_MODE_REG		0x20
-#define Z8536_PB_MODE_REG		0x28
-#define Z8536_PAB_MODE_PTS_BIT		(0 << 6)/* Bit Port */
-#define Z8536_PAB_MODE_PTS_INPUT	(1 << 6)/* Input Port */
-#define Z8536_PAB_MODE_PTS_OUTPUT	(2 << 6)/* Output Port */
-#define Z8536_PAB_MODE_PTS_BIDIR	(3 << 6)/* Bidirectional Port */
-#define Z8536_PAB_MODE_PTS_MASK		(3 << 6)/* Port Type Select mask */
-#define Z8536_PAB_MODE_ITB		BIT(5)	/* Interrupt on Two Bytes */
-#define Z8536_PAB_MODE_SB		BIT(4)	/* Single Buffered mode */
-#define Z8536_PAB_MODE_IMO		BIT(3)	/* Interrupt on Match Only */
-#define Z8536_PAB_MODE_PMS_DISABLE	(0 << 1)/* Disable Pattern Match */
-#define Z8536_PAB_MODE_PMS_AND		(1 << 1)/* "AND" mode */
-#define Z8536_PAB_MODE_PMS_OR		(2 << 1)/* "OR" mode */
-#define Z8536_PAB_MODE_PMS_OR_PEV	(3 << 1)/* "OR-Priority" mode */
-#define Z8536_PAB_MODE_PMS_MASK		(3 << 1)/* Pattern Mode mask */
-#define Z8536_PAB_MODE_LPM		BIT(0)	/* Latch on Pattern Match */
-#define Z8536_PAB_MODE_DTE		BIT(0)	/* Deskew Timer Enabled */
-
-/* Port A/B Handshake Specification registers */
-#define Z8536_PA_HANDSHAKE_REG		0x21
-#define Z8536_PB_HANDSHAKE_REG		0x29
-#define Z8536_PAB_HANDSHAKE_HST_INTER	(0 << 6)/* Interlocked Handshake */
-#define Z8536_PAB_HANDSHAKE_HST_STROBED	(1 << 6)/* Strobed Handshake */
-#define Z8536_PAB_HANDSHAKE_HST_PULSED	(2 << 6)/* Pulsed Handshake */
-#define Z8536_PAB_HANDSHAKE_HST_3WIRE	(3 << 6)/* Three-Wire Handshake */
-#define Z8536_PAB_HANDSHAKE_HST_MASK	(3 << 6)/* Handshake Type mask */
-#define Z8536_PAB_HANDSHAKE_RWS_DISABLE	(0 << 3)/* Req/Wait Disabled */
-#define Z8536_PAB_HANDSHAKE_RWS_OUTWAIT	(1 << 3)/* Output Wait */
-#define Z8536_PAB_HANDSHAKE_RWS_INWAIT	(3 << 3)/* Input Wait */
-#define Z8536_PAB_HANDSHAKE_RWS_SPREQ	(4 << 3)/* Special Request */
-#define Z8536_PAB_HANDSHAKE_RWS_OUTREQ	(5 << 4)/* Output Request */
-#define Z8536_PAB_HANDSHAKE_RWS_INREQ	(7 << 3)/* Input Request */
-#define Z8536_PAB_HANDSHAKE_RWS_MASK	(7 << 3)/* Req/Wait mask */
-#define Z8536_PAB_HANDSHAKE_DESKEW(x)	((x) << 0)/* Deskew Time */
-#define Z8536_PAB_HANDSHAKE_DESKEW_MASK	(3 << 0)/* Deskew Time mask */
-
-/*
- * Port A/B/C Data Path Polarity registers
- *
- *	0 = Non-Inverting
- *	1 = Inverting
- */
-#define Z8536_PA_DPP_REG		0x22
-#define Z8536_PB_DPP_REG		0x2a
-#define Z8536_PC_DPP_REG		0x05
-
-/*
- * Port A/B/C Data Direction registers
- *
- *	0 = Output bit
- *	1 = Input bit
- */
-#define Z8536_PA_DD_REG			0x23
-#define Z8536_PB_DD_REG			0x2b
-#define Z8536_PC_DD_REG			0x06
-
-/*
- * Port A/B/C Special I/O Control registers
- *
- *	0 = Normal Input or Output
- *	1 = Output with open drain or Input with 1's catcher
- */
-#define Z8536_PA_SIO_REG		0x24
-#define Z8536_PB_SIO_REG		0x2c
-#define Z8536_PC_SIO_REG		0x07
-
-/*
- * Port A/B Pattern Polarity/Transition/Mask registers
- *
- *	PM PT PP  Pattern Specification
- *	-- -- --  -------------------------------------
- *	 0  0  x  Bit masked off
- *	 0  1  x  Any transition
- *	 1  0  0  Zero (low-level)
- *	 1  0  1  One (high-level)
- *	 1  1  0  One-to-zero transition (falling-edge)
- *	 1  1  1  Zero-to-one transition (rising-edge)
- */
-#define Z8536_PA_PP_REG			0x25
-#define Z8536_PB_PP_REG			0x2d
-
-#define Z8536_PA_PT_REG			0x26
-#define Z8536_PB_PT_REG			0x2e
-
-#define Z8536_PA_PM_REG			0x27
-#define Z8536_PB_PM_REG			0x2f
-
-#endif	/* _Z8536_H */
diff --git a/drivers/staging/comedi/kcomedilib/Makefile b/drivers/staging/comedi/kcomedilib/Makefile
deleted file mode 100644
index 3aff8ed08e2d..000000000000
--- a/drivers/staging/comedi/kcomedilib/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-ccflags-$(CONFIG_COMEDI_DEBUG)		:= -DDEBUG
-
-obj-$(CONFIG_COMEDI_KCOMEDILIB)	+= kcomedilib.o
-
-kcomedilib-objs := kcomedilib_main.o
diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
deleted file mode 100644
index 76bf5619fdd5..000000000000
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
-    kcomedilib/kcomedilib.c
-    a comedlib interface for kernel modules
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-
-#include <linux/module.h>
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fcntl.h>
-#include <linux/mm.h>
-#include <linux/io.h>
-
-#include "../comedi.h"
-#include "../comedilib.h"
-#include "../comedidev.h"
-
-MODULE_AUTHOR("David Schleef <ds@schleef.org>");
-MODULE_DESCRIPTION("Comedi kernel library");
-MODULE_LICENSE("GPL");
-
-struct comedi_device *comedi_open(const char *filename)
-{
-	struct comedi_device *dev, *retval = NULL;
-	unsigned int minor;
-
-	if (strncmp(filename, "/dev/comedi", 11) != 0)
-		return NULL;
-
-	if (kstrtouint(filename + 11, 0, &minor))
-		return NULL;
-
-	if (minor >= COMEDI_NUM_BOARD_MINORS)
-		return NULL;
-
-	dev = comedi_dev_get_from_minor(minor);
-	if (!dev)
-		return NULL;
-
-	down_read(&dev->attach_lock);
-	if (dev->attached)
-		retval = dev;
-	else
-		retval = NULL;
-	up_read(&dev->attach_lock);
-
-	if (!retval)
-		comedi_dev_put(dev);
-
-	return retval;
-}
-EXPORT_SYMBOL_GPL(comedi_open);
-
-int comedi_close(struct comedi_device *dev)
-{
-	comedi_dev_put(dev);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_close);
-
-static int comedi_do_insn(struct comedi_device *dev,
-			  struct comedi_insn *insn,
-			  unsigned int *data)
-{
-	struct comedi_subdevice *s;
-	int ret;
-
-	mutex_lock(&dev->mutex);
-
-	if (!dev->attached) {
-		ret = -EINVAL;
-		goto error;
-	}
-
-	/* a subdevice instruction */
-	if (insn->subdev >= dev->n_subdevices) {
-		ret = -EINVAL;
-		goto error;
-	}
-	s = &dev->subdevices[insn->subdev];
-
-	if (s->type == COMEDI_SUBD_UNUSED) {
-		dev_err(dev->class_dev,
-			"%d not usable subdevice\n", insn->subdev);
-		ret = -EIO;
-		goto error;
-	}
-
-	/* XXX check lock */
-
-	ret = comedi_check_chanlist(s, 1, &insn->chanspec);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "bad chanspec\n");
-		ret = -EINVAL;
-		goto error;
-	}
-
-	if (s->busy) {
-		ret = -EBUSY;
-		goto error;
-	}
-	s->busy = dev;
-
-	switch (insn->insn) {
-	case INSN_BITS:
-		ret = s->insn_bits(dev, s, insn, data);
-		break;
-	case INSN_CONFIG:
-		/* XXX should check instruction length */
-		ret = s->insn_config(dev, s, insn, data);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-
-	s->busy = NULL;
-error:
-
-	mutex_unlock(&dev->mutex);
-	return ret;
-}
-
-int comedi_dio_get_config(struct comedi_device *dev, unsigned int subdev,
-			  unsigned int chan, unsigned int *io)
-{
-	struct comedi_insn insn;
-	unsigned int data[2];
-	int ret;
-
-	memset(&insn, 0, sizeof(insn));
-	insn.insn = INSN_CONFIG;
-	insn.n = 2;
-	insn.subdev = subdev;
-	insn.chanspec = CR_PACK(chan, 0, 0);
-	data[0] = INSN_CONFIG_DIO_QUERY;
-	data[1] = 0;
-	ret = comedi_do_insn(dev, &insn, data);
-	if (ret >= 0)
-		*io = data[1];
-	return ret;
-}
-EXPORT_SYMBOL_GPL(comedi_dio_get_config);
-
-int comedi_dio_config(struct comedi_device *dev, unsigned int subdev,
-		      unsigned int chan, unsigned int io)
-{
-	struct comedi_insn insn;
-
-	memset(&insn, 0, sizeof(insn));
-	insn.insn = INSN_CONFIG;
-	insn.n = 1;
-	insn.subdev = subdev;
-	insn.chanspec = CR_PACK(chan, 0, 0);
-
-	return comedi_do_insn(dev, &insn, &io);
-}
-EXPORT_SYMBOL_GPL(comedi_dio_config);
-
-int comedi_dio_bitfield2(struct comedi_device *dev, unsigned int subdev,
-			 unsigned int mask, unsigned int *bits,
-			 unsigned int base_channel)
-{
-	struct comedi_insn insn;
-	unsigned int data[2];
-	unsigned int n_chan;
-	unsigned int shift;
-	int ret;
-
-	base_channel = CR_CHAN(base_channel);
-	n_chan = comedi_get_n_channels(dev, subdev);
-	if (base_channel >= n_chan)
-		return -EINVAL;
-
-	memset(&insn, 0, sizeof(insn));
-	insn.insn = INSN_BITS;
-	insn.chanspec = base_channel;
-	insn.n = 2;
-	insn.subdev = subdev;
-
-	data[0] = mask;
-	data[1] = *bits;
-
-	/*
-	 * Most drivers ignore the base channel in insn->chanspec.
-	 * Fix this here if the subdevice has <= 32 channels.
-	 */
-	if (n_chan <= 32) {
-		shift = base_channel;
-		if (shift) {
-			insn.chanspec = 0;
-			data[0] <<= shift;
-			data[1] <<= shift;
-		}
-	} else {
-		shift = 0;
-	}
-
-	ret = comedi_do_insn(dev, &insn, data);
-	*bits = data[1] >> shift;
-	return ret;
-}
-EXPORT_SYMBOL_GPL(comedi_dio_bitfield2);
-
-int comedi_find_subdevice_by_type(struct comedi_device *dev, int type,
-				  unsigned int subd)
-{
-	struct comedi_subdevice *s;
-	int ret = -ENODEV;
-
-	down_read(&dev->attach_lock);
-	if (dev->attached)
-		for (; subd < dev->n_subdevices; subd++) {
-			s = &dev->subdevices[subd];
-			if (s->type == type) {
-				ret = subd;
-				break;
-			}
-		}
-	up_read(&dev->attach_lock);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(comedi_find_subdevice_by_type);
-
-int comedi_get_n_channels(struct comedi_device *dev, unsigned int subdevice)
-{
-	int n;
-
-	down_read(&dev->attach_lock);
-	if (!dev->attached || subdevice >= dev->n_subdevices)
-		n = 0;
-	else
-		n = dev->subdevices[subdevice].n_chan;
-	up_read(&dev->attach_lock);
-
-	return n;
-}
-EXPORT_SYMBOL_GPL(comedi_get_n_channels);
diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c
deleted file mode 100644
index 91dea25b5724..000000000000
--- a/drivers/staging/comedi/proc.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * /proc interface for comedi
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-/*
- * This is some serious bloatware.
- *
- * Taken from Dave A.'s PCL-711 driver, 'cuz I thought it
- * was cool.
- */
-
-#include "comedidev.h"
-#include "comedi_internal.h"
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-
-static int comedi_read(struct seq_file *m, void *v)
-{
-	int i;
-	int devices_q = 0;
-	struct comedi_driver *driv;
-
-	seq_printf(m, "comedi version " COMEDI_RELEASE "\nformat string: %s\n",
-		   "\"%2d: %-20s %-20s %4d\", i, driver_name, board_name, n_subdevices");
-
-	for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) {
-		struct comedi_device *dev = comedi_dev_get_from_minor(i);
-
-		if (!dev)
-			continue;
-
-		down_read(&dev->attach_lock);
-		if (dev->attached) {
-			devices_q = 1;
-			seq_printf(m, "%2d: %-20s %-20s %4d\n",
-				   i, dev->driver->driver_name,
-				   dev->board_name, dev->n_subdevices);
-		}
-		up_read(&dev->attach_lock);
-		comedi_dev_put(dev);
-	}
-	if (!devices_q)
-		seq_puts(m, "no devices\n");
-
-	mutex_lock(&comedi_drivers_list_lock);
-	for (driv = comedi_drivers; driv; driv = driv->next) {
-		seq_printf(m, "%s:\n", driv->driver_name);
-		for (i = 0; i < driv->num_names; i++)
-			seq_printf(m, " %s\n",
-				   *(char **)((char *)driv->board_name +
-					      i * driv->offset));
-
-		if (!driv->num_names)
-			seq_printf(m, " %s\n", driv->driver_name);
-	}
-	mutex_unlock(&comedi_drivers_list_lock);
-
-	return 0;
-}
-
-/*
- * seq_file wrappers for procfile show routines.
- */
-static int comedi_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, comedi_read, NULL);
-}
-
-static const struct file_operations comedi_proc_fops = {
-	.open		= comedi_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-void comedi_proc_init(void)
-{
-	proc_create("comedi", 0644, NULL, &comedi_proc_fops);
-}
-
-void comedi_proc_cleanup(void)
-{
-	remove_proc_entry("comedi", NULL);
-}
diff --git a/drivers/staging/comedi/range.c b/drivers/staging/comedi/range.c
deleted file mode 100644
index ce3a58a7a171..000000000000
--- a/drivers/staging/comedi/range.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * comedi/range.c
- * comedi routines for voltage ranges
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/uaccess.h>
-#include "comedidev.h"
-#include "comedi_internal.h"
-
-const struct comedi_lrange range_bipolar10 = { 1, {BIP_RANGE(10)} };
-EXPORT_SYMBOL_GPL(range_bipolar10);
-const struct comedi_lrange range_bipolar5 = { 1, {BIP_RANGE(5)} };
-EXPORT_SYMBOL_GPL(range_bipolar5);
-const struct comedi_lrange range_bipolar2_5 = { 1, {BIP_RANGE(2.5)} };
-EXPORT_SYMBOL_GPL(range_bipolar2_5);
-const struct comedi_lrange range_unipolar10 = { 1, {UNI_RANGE(10)} };
-EXPORT_SYMBOL_GPL(range_unipolar10);
-const struct comedi_lrange range_unipolar5 = { 1, {UNI_RANGE(5)} };
-EXPORT_SYMBOL_GPL(range_unipolar5);
-const struct comedi_lrange range_unipolar2_5 = { 1, {UNI_RANGE(2.5)} };
-EXPORT_SYMBOL_GPL(range_unipolar2_5);
-const struct comedi_lrange range_0_20mA = { 1, {RANGE_mA(0, 20)} };
-EXPORT_SYMBOL_GPL(range_0_20mA);
-const struct comedi_lrange range_4_20mA = { 1, {RANGE_mA(4, 20)} };
-EXPORT_SYMBOL_GPL(range_4_20mA);
-const struct comedi_lrange range_0_32mA = { 1, {RANGE_mA(0, 32)} };
-EXPORT_SYMBOL_GPL(range_0_32mA);
-const struct comedi_lrange range_unknown = { 1, {{0, 1000000, UNIT_none} } };
-EXPORT_SYMBOL_GPL(range_unknown);
-
-/*
- * COMEDI_RANGEINFO ioctl
- * range information
- *
- * arg:
- *	pointer to comedi_rangeinfo structure
- *
- * reads:
- *	comedi_rangeinfo structure
- *
- * writes:
- *	array of comedi_krange structures to rangeinfo->range_ptr pointer
- */
-int do_rangeinfo_ioctl(struct comedi_device *dev,
-		       struct comedi_rangeinfo __user *arg)
-{
-	struct comedi_rangeinfo it;
-	int subd, chan;
-	const struct comedi_lrange *lr;
-	struct comedi_subdevice *s;
-
-	if (copy_from_user(&it, arg, sizeof(struct comedi_rangeinfo)))
-		return -EFAULT;
-	subd = (it.range_type >> 24) & 0xf;
-	chan = (it.range_type >> 16) & 0xff;
-
-	if (!dev->attached)
-		return -EINVAL;
-	if (subd >= dev->n_subdevices)
-		return -EINVAL;
-	s = &dev->subdevices[subd];
-	if (s->range_table) {
-		lr = s->range_table;
-	} else if (s->range_table_list) {
-		if (chan >= s->n_chan)
-			return -EINVAL;
-		lr = s->range_table_list[chan];
-	} else {
-		return -EINVAL;
-	}
-
-	if (RANGE_LENGTH(it.range_type) != lr->length) {
-		dev_dbg(dev->class_dev,
-			"wrong length %d should be %d (0x%08x)\n",
-			RANGE_LENGTH(it.range_type),
-			lr->length, it.range_type);
-		return -EINVAL;
-	}
-
-	if (copy_to_user(it.range_ptr, lr->range,
-			 sizeof(struct comedi_krange) * lr->length))
-		return -EFAULT;
-
-	return 0;
-}
-
-/**
- * comedi_check_chanlist() - Validate each element in a chanlist.
- * @s: comedi_subdevice struct
- * @n: number of elements in the chanlist
- * @chanlist: the chanlist to validate
- *
- * Each element consists of a channel number, a range index, an analog
- * reference type and some flags, all packed into an unsigned int.
- *
- * This checks that the channel number and range index are supported by
- * the comedi subdevice.  It does not check whether the analog reference
- * type and the flags are supported.  Drivers that care should check those
- * themselves.
- *
- * Return: %0 if all @chanlist elements are valid (success),
- *         %-EINVAL if one or more elements are invalid.
- */
-int comedi_check_chanlist(struct comedi_subdevice *s, int n,
-			  unsigned int *chanlist)
-{
-	struct comedi_device *dev = s->device;
-	unsigned int chanspec;
-	int chan, range_len, i;
-
-	for (i = 0; i < n; i++) {
-		chanspec = chanlist[i];
-		chan = CR_CHAN(chanspec);
-		if (s->range_table)
-			range_len = s->range_table->length;
-		else if (s->range_table_list && chan < s->n_chan)
-			range_len = s->range_table_list[chan]->length;
-		else
-			range_len = 0;
-		if (chan >= s->n_chan ||
-		    CR_RANGE(chanspec) >= range_len) {
-			dev_warn(dev->class_dev,
-				 "bad chanlist[%d]=0x%08x chan=%d range length=%d\n",
-				 i, chanspec, chan, range_len);
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(comedi_check_chanlist);
diff --git a/drivers/staging/dgap/Kconfig b/drivers/staging/dgap/Kconfig
deleted file mode 100644
index 3bbe9e122365..000000000000
--- a/drivers/staging/dgap/Kconfig
+++ /dev/null
@@ -1,6 +0,0 @@
-config DGAP
-       tristate "Digi EPCA PCI products"
-       default n
-       depends on TTY && HAS_IOMEM
-       ---help---
-       Driver for the Digi International EPCA PCI based product line
diff --git a/drivers/staging/dgap/Makefile b/drivers/staging/dgap/Makefile
deleted file mode 100644
index 0063d044ca71..000000000000
--- a/drivers/staging/dgap/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_DGAP) += dgap.o
diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
deleted file mode 100644
index 9112dd2bf4d7..000000000000
--- a/drivers/staging/dgap/dgap.c
+++ /dev/null
@@ -1,7159 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
- */
-
-/*
- *      In the original out of kernel Digi dgap driver, firmware
- *      loading was done via user land to driver handshaking.
- *
- *      For cards that support a concentrator (port expander),
- *      I believe the concentrator its self told the card which
- *      concentrator is actually attached and then that info
- *      was used to tell user land which concentrator firmware
- *      image was to be downloaded. I think even the BIOS or
- *      FEP images required could change with the connection
- *      of a particular concentrator.
- *
- *      Since I have no access to any of these cards or
- *      concentrators, I cannot put the correct concentrator
- *      firmware file names into the firmware_info structure
- *      as is now done for the BIOS and FEP images.
- *
- *      I think, but am not certain, that the cards supporting
- *      concentrators will function without them. So support
- *      of these cards has been left in this driver.
- *
- *      In order to fully support those cards, they would
- *      either have to be acquired for dissection or maybe
- *      Digi International could provide some assistance.
- */
-#undef DIGI_CONCENTRATORS_SUPPORTED
-
-#define pr_fmt(fmt) "dgap: " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/delay.h>	/* For udelay */
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/sched.h>
-
-#include <linux/interrupt.h>	/* For tasklet and interrupt structs/defines */
-#include <linux/ctype.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial_reg.h>
-#include <linux/io.h>		/* For read[bwl]/write[bwl] */
-
-#include <linux/string.h>
-#include <linux/device.h>
-#include <linux/kdev_t.h>
-#include <linux/firmware.h>
-
-#include "dgap.h"
-
-/*
- * File operations permitted on Control/Management major.
- */
-static const struct file_operations dgap_board_fops = {
-	.owner	= THIS_MODULE,
-};
-
-static uint dgap_numboards;
-static struct board_t *dgap_board[MAXBOARDS];
-static ulong dgap_poll_counter;
-static int dgap_driver_state = DRIVER_INITIALIZED;
-static int dgap_poll_tick = 20;	/* Poll interval - 20 ms */
-
-static struct class *dgap_class;
-
-static uint dgap_count = 500;
-
-/*
- * Poller stuff
- */
-static DEFINE_SPINLOCK(dgap_poll_lock);	/* Poll scheduling lock */
-static ulong dgap_poll_time;		/* Time of next poll */
-static uint dgap_poll_stop;		/* Used to tell poller to stop */
-static struct timer_list dgap_poll_timer;
-
-/*
-     SUPPORTED PRODUCTS
-
-     Card Model               Number of Ports      Interface
-     ----------------------------------------------------------------
-     Acceleport Xem           4 - 64              (EIA232 & EIA422)
-     Acceleport Xr            4 & 8               (EIA232)
-     Acceleport Xr 920        4 & 8               (EIA232)
-     Acceleport C/X           8 - 128             (EIA232)
-     Acceleport EPC/X         8 - 224             (EIA232)
-     Acceleport Xr/422        4 & 8               (EIA422)
-     Acceleport 2r/920        2                   (EIA232)
-     Acceleport 4r/920        4                   (EIA232)
-     Acceleport 8r/920        8                   (EIA232)
-
-     IBM 8-Port Asynchronous PCI Adapter          (EIA232)
-     IBM 128-Port Asynchronous PCI Adapter        (EIA232 & EIA422)
-*/
-
-static struct pci_device_id dgap_pci_tbl[] = {
-	{ DIGI_VID, PCI_DEV_XEM_DID,      PCI_ANY_ID, PCI_ANY_ID, 0, 0,  0 },
-	{ DIGI_VID, PCI_DEV_CX_DID,       PCI_ANY_ID, PCI_ANY_ID, 0, 0,  1 },
-	{ DIGI_VID, PCI_DEV_CX_IBM_DID,   PCI_ANY_ID, PCI_ANY_ID, 0, 0,  2 },
-	{ DIGI_VID, PCI_DEV_EPCJ_DID,     PCI_ANY_ID, PCI_ANY_ID, 0, 0,  3 },
-	{ DIGI_VID, PCI_DEV_920_2_DID,    PCI_ANY_ID, PCI_ANY_ID, 0, 0,  4 },
-	{ DIGI_VID, PCI_DEV_920_4_DID,    PCI_ANY_ID, PCI_ANY_ID, 0, 0,  5 },
-	{ DIGI_VID, PCI_DEV_920_8_DID,    PCI_ANY_ID, PCI_ANY_ID, 0, 0,  6 },
-	{ DIGI_VID, PCI_DEV_XR_DID,       PCI_ANY_ID, PCI_ANY_ID, 0, 0,  7 },
-	{ DIGI_VID, PCI_DEV_XRJ_DID,      PCI_ANY_ID, PCI_ANY_ID, 0, 0,  8 },
-	{ DIGI_VID, PCI_DEV_XR_422_DID,   PCI_ANY_ID, PCI_ANY_ID, 0, 0,  9 },
-	{ DIGI_VID, PCI_DEV_XR_IBM_DID,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
-	{ DIGI_VID, PCI_DEV_XR_SAIP_DID,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
-	{ DIGI_VID, PCI_DEV_XR_BULL_DID,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
-	{ DIGI_VID, PCI_DEV_920_8_HP_DID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13 },
-	{ DIGI_VID, PCI_DEV_XEM_HP_DID,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 14 },
-	{0,}					/* 0 terminated list. */
-};
-MODULE_DEVICE_TABLE(pci, dgap_pci_tbl);
-
-/*
- * A generic list of Product names, PCI Vendor ID, and PCI Device ID.
- */
-struct board_id {
-	uint config_type;
-	u8 *name;
-	uint maxports;
-	uint dpatype;
-};
-
-static struct board_id dgap_ids[] = {
-	{ PPCM,        PCI_DEV_XEM_NAME,     64, (T_PCXM|T_PCLITE|T_PCIBUS) },
-	{ PCX,         PCI_DEV_CX_NAME,     128, (T_CX|T_PCIBUS)            },
-	{ PCX,         PCI_DEV_CX_IBM_NAME, 128, (T_CX|T_PCIBUS)            },
-	{ PEPC,        PCI_DEV_EPCJ_NAME,   224, (T_EPC|T_PCIBUS)           },
-	{ APORT2_920P, PCI_DEV_920_2_NAME,    2, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ APORT4_920P, PCI_DEV_920_4_NAME,    4, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ APORT8_920P, PCI_DEV_920_8_NAME,    8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ PAPORT8,     PCI_DEV_XR_NAME,       8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ PAPORT8,     PCI_DEV_XRJ_NAME,      8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ PAPORT8,     PCI_DEV_XR_422_NAME,   8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ PAPORT8,     PCI_DEV_XR_IBM_NAME,   8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ PAPORT8,     PCI_DEV_XR_SAIP_NAME,  8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ PAPORT8,     PCI_DEV_XR_BULL_NAME,  8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ APORT8_920P, PCI_DEV_920_8_HP_NAME, 8, (T_PCXR|T_PCLITE|T_PCIBUS) },
-	{ PPCM,        PCI_DEV_XEM_HP_NAME,  64, (T_PCXM|T_PCLITE|T_PCIBUS) },
-	{0,}						/* 0 terminated list. */
-};
-
-struct firmware_info {
-	u8 *conf_name;  /* dgap.conf */
-	u8 *bios_name;	/* BIOS filename */
-	u8 *fep_name;	/* FEP  filename */
-	u8 *con_name;	/* Concentrator filename  FIXME*/
-	int num;        /* sequence number */
-};
-
-/*
- * Firmware - BIOS, FEP, and CONC filenames
- */
-static struct firmware_info fw_info[] = {
-	{ "dgap/dgap.conf", "dgap/sxbios.bin",  "dgap/sxfep.bin",  NULL, 0 },
-	{ "dgap/dgap.conf", "dgap/cxpbios.bin", "dgap/cxpfep.bin", NULL, 1 },
-	{ "dgap/dgap.conf", "dgap/cxpbios.bin", "dgap/cxpfep.bin", NULL, 2 },
-	{ "dgap/dgap.conf", "dgap/pcibios.bin", "dgap/pcifep.bin", NULL, 3 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 4 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 5 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 6 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 7 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 8 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 9 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 10 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 11 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 12 },
-	{ "dgap/dgap.conf", "dgap/xrbios.bin",  "dgap/xrfep.bin",  NULL, 13 },
-	{ "dgap/dgap.conf", "dgap/sxbios.bin",  "dgap/sxfep.bin",  NULL, 14 },
-	{NULL,}
-};
-
-/*
- * Default transparent print information.
- */
-static struct digi_t dgap_digi_init = {
-	.digi_flags =	DIGI_COOK,	/* Flags			*/
-	.digi_maxcps =	100,		/* Max CPS			*/
-	.digi_maxchar =	50,		/* Max chars in print queue	*/
-	.digi_bufsize =	100,		/* Printer buffer size		*/
-	.digi_onlen =	4,		/* size of printer on string	*/
-	.digi_offlen =	4,		/* size of printer off string	*/
-	.digi_onstr =	"\033[5i",	/* ANSI printer on string ]	*/
-	.digi_offstr =	"\033[4i",	/* ANSI printer off string ]	*/
-	.digi_term =	"ansi"		/* default terminal type	*/
-};
-
-/*
- * Define a local default termios struct. All ports will be created
- * with this termios initially.
- *
- * This defines a raw port at 9600 baud, 8 data bits, no parity,
- * 1 stop bit.
- */
-
-static struct ktermios dgap_default_termios = {
-	.c_iflag =	(DEFAULT_IFLAGS),	/* iflags */
-	.c_oflag =	(DEFAULT_OFLAGS),	/* oflags */
-	.c_cflag =	(DEFAULT_CFLAGS),	/* cflags */
-	.c_lflag =	(DEFAULT_LFLAGS),	/* lflags */
-	.c_cc =		INIT_C_CC,
-	.c_line =	0,
-};
-
-/*
- * Our needed internal static variables from dgap_parse.c
- */
-static struct cnode dgap_head;
-#define MAXCWORD 200
-static char dgap_cword[MAXCWORD];
-
-struct toklist {
-	int token;
-	char *string;
-};
-
-static struct toklist dgap_brdtype[] = {
-	{ PCX,		"Digi_AccelePort_C/X_PCI" },
-	{ PEPC,		"Digi_AccelePort_EPC/X_PCI" },
-	{ PPCM,		"Digi_AccelePort_Xem_PCI" },
-	{ APORT2_920P,	"Digi_AccelePort_2r_920_PCI" },
-	{ APORT4_920P,	"Digi_AccelePort_4r_920_PCI" },
-	{ APORT8_920P,	"Digi_AccelePort_8r_920_PCI" },
-	{ PAPORT4,	"Digi_AccelePort_4r_PCI(EIA-232/RS-422)" },
-	{ PAPORT8,	"Digi_AccelePort_8r_PCI(EIA-232/RS-422)" },
-	{ 0, NULL }
-};
-
-static struct toklist dgap_tlist[] = {
-	{ BEGIN,	"config_begin" },
-	{ END,		"config_end" },
-	{ BOARD,	"board"	},
-	{ IO,		"io" },
-	{ PCIINFO,	"pciinfo" },
-	{ LINE,		"line" },
-	{ CONC,		"conc" },
-	{ CONC,		"concentrator" },
-	{ CX,		"cx" },
-	{ CX,		"ccon" },
-	{ EPC,		"epccon" },
-	{ EPC,		"epc" },
-	{ MOD,		"module" },
-	{ ID,		"id" },
-	{ STARTO,	"start" },
-	{ SPEED,	"speed"	},
-	{ CABLE,	"cable"	},
-	{ CONNECT,	"connect" },
-	{ METHOD,	"method" },
-	{ STATUS,	"status" },
-	{ CUSTOM,	"Custom" },
-	{ BASIC,	"Basic"	},
-	{ MEM,		"mem" },
-	{ MEM,		"memory" },
-	{ PORTS,	"ports"	},
-	{ MODEM,	"modem"	},
-	{ NPORTS,	"nports" },
-	{ TTYN,		"ttyname" },
-	{ CU,		"cuname" },
-	{ PRINT,	"prname" },
-	{ CMAJOR,	"major"	 },
-	{ ALTPIN,	"altpin" },
-	{ USEINTR,	"useintr" },
-	{ TTSIZ,	"ttysize" },
-	{ CHSIZ,	"chsize" },
-	{ BSSIZ,	"boardsize" },
-	{ UNTSIZ,	"schedsize" },
-	{ F2SIZ,	"f2200size" },
-	{ VPSIZ,	"vpixsize" },
-	{ 0,		NULL }
-};
-
-
-/*
- * dgap_sindex: much like index(), but it looks for a match of any character in
- * the group, and returns that position.
- */
-static char *dgap_sindex(char *string, char *group)
-{
-	char *ptr;
-
-	if (!string || !group)
-		return NULL;
-
-	for (; *string; string++) {
-		for (ptr = group; *ptr; ptr++) {
-			if (*ptr == *string)
-				return string;
-		}
-	}
-
-	return NULL;
-}
-
-/*
- * get a word from the input stream, also keep track of current line number.
- * words are separated by whitespace.
- */
-static char *dgap_getword(char **in)
-{
-	char *ret_ptr = *in;
-
-	char *ptr = dgap_sindex(*in, " \t\n");
-
-	/* If no word found, return null */
-	if (!ptr)
-		return NULL;
-
-	/* Mark new location for our buffer */
-	*ptr = '\0';
-	*in = ptr + 1;
-
-	/* Eat any extra spaces/tabs/newlines that might be present */
-	while (*in && **in && ((**in == ' ') ||
-			       (**in == '\t') ||
-			       (**in == '\n'))) {
-		**in = '\0';
-		*in = *in + 1;
-	}
-
-	return ret_ptr;
-}
-
-
-/*
- * Get a token from the input file; return 0 if end of file is reached
- */
-static int dgap_gettok(char **in)
-{
-	char *w;
-	struct toklist *t;
-
-	if (strstr(dgap_cword, "board")) {
-		w = dgap_getword(in);
-		snprintf(dgap_cword, MAXCWORD, "%s", w);
-		for (t = dgap_brdtype; t->token != 0; t++) {
-			if (!strcmp(w, t->string))
-				return t->token;
-		}
-	} else {
-		while ((w = dgap_getword(in))) {
-			snprintf(dgap_cword, MAXCWORD, "%s", w);
-			for (t = dgap_tlist; t->token != 0; t++) {
-				if (!strcmp(w, t->string))
-					return t->token;
-			}
-		}
-	}
-
-	return 0;
-}
-
-/*
- * dgap_checknode: see if all the necessary info has been supplied for a node
- * before creating the next node.
- */
-static int dgap_checknode(struct cnode *p)
-{
-	switch (p->type) {
-	case LNODE:
-		if (p->u.line.v_speed == 0) {
-			pr_err("line speed not specified");
-			return 1;
-		}
-		return 0;
-
-	case CNODE:
-		if (p->u.conc.v_speed == 0) {
-			pr_err("concentrator line speed not specified");
-			return 1;
-		}
-		if (p->u.conc.v_nport == 0) {
-			pr_err("number of ports on concentrator not specified");
-			return 1;
-		}
-		if (p->u.conc.v_id == 0) {
-			pr_err("concentrator id letter not specified");
-			return 1;
-		}
-		return 0;
-
-	case MNODE:
-		if (p->u.module.v_nport == 0) {
-			pr_err("number of ports on EBI module not specified");
-			return 1;
-		}
-		if (p->u.module.v_id == 0) {
-			pr_err("EBI module id letter not specified");
-			return 1;
-		}
-		return 0;
-	}
-	return 0;
-}
-
-/*
- * Given a board pointer, returns whether we should use interrupts or not.
- */
-static uint dgap_config_get_useintr(struct board_t *bd)
-{
-	struct cnode *p;
-
-	if (!bd)
-		return 0;
-
-	for (p = bd->bd_config; p; p = p->next) {
-		if (p->type == INTRNODE) {
-			/*
-			 * check for pcxr types.
-			 */
-			return p->u.useintr;
-		}
-	}
-
-	/* If not found, then don't turn on interrupts. */
-	return 0;
-}
-
-/*
- * Given a board pointer, returns whether we turn on altpin or not.
- */
-static uint dgap_config_get_altpin(struct board_t *bd)
-{
-	struct cnode *p;
-
-	if (!bd)
-		return 0;
-
-	for (p = bd->bd_config; p; p = p->next) {
-		if (p->type == ANODE) {
-			/*
-			 * check for pcxr types.
-			 */
-			return p->u.altpin;
-		}
-	}
-
-	/* If not found, then don't turn on interrupts. */
-	return 0;
-}
-
-/*
- * Given a specific type of board, if found, detached link and
- * returns the first occurrence in the list.
- */
-static struct cnode *dgap_find_config(int type, int bus, int slot)
-{
-	struct cnode *p, *prev, *prev2, *found;
-
-	p = &dgap_head;
-
-	while (p->next) {
-		prev = p;
-		p = p->next;
-
-		if (p->type != BNODE)
-			continue;
-
-		if (p->u.board.type != type)
-			continue;
-
-		if (p->u.board.v_pcibus &&
-		    p->u.board.pcibus != bus)
-			continue;
-
-		if (p->u.board.v_pcislot &&
-		    p->u.board.pcislot != slot)
-			continue;
-
-		found = p;
-		/*
-		 * Keep walking thru the list till we
-		 * find the next board.
-		 */
-		while (p->next) {
-			prev2 = p;
-			p = p->next;
-
-			if (p->type != BNODE)
-				continue;
-
-			/*
-			 * Mark the end of our 1 board
-			 * chain of configs.
-			 */
-			prev2->next = NULL;
-
-			/*
-			 * Link the "next" board to the
-			 * previous board, effectively
-			 * "unlinking" our board from
-			 * the main config.
-			 */
-			prev->next = p;
-
-			return found;
-		}
-		/*
-		 * It must be the last board in the list.
-		 */
-		prev->next = NULL;
-		return found;
-	}
-	return NULL;
-}
-
-/*
- * Given a board pointer, walks the config link, counting up
- * all ports user specified should be on the board.
- * (This does NOT mean they are all actually present right now tho)
- */
-static uint dgap_config_get_num_prts(struct board_t *bd)
-{
-	int count = 0;
-	struct cnode *p;
-
-	if (!bd)
-		return 0;
-
-	for (p = bd->bd_config; p; p = p->next) {
-
-		switch (p->type) {
-		case BNODE:
-			/*
-			 * check for pcxr types.
-			 */
-			if (p->u.board.type > EPCFE)
-				count += p->u.board.nport;
-			break;
-		case CNODE:
-			count += p->u.conc.nport;
-			break;
-		case MNODE:
-			count += p->u.module.nport;
-			break;
-		}
-	}
-	return count;
-}
-
-static char *dgap_create_config_string(struct board_t *bd, char *string)
-{
-	char *ptr = string;
-	struct cnode *p;
-	struct cnode *q;
-	int speed;
-
-	if (!bd) {
-		*ptr = 0xff;
-		return string;
-	}
-
-	for (p = bd->bd_config; p; p = p->next) {
-
-		switch (p->type) {
-		case LNODE:
-			*ptr = '\0';
-			ptr++;
-			*ptr = p->u.line.speed;
-			ptr++;
-			break;
-		case CNODE:
-			/*
-			 * Because the EPC/con concentrators can have EM modules
-			 * hanging off of them, we have to walk ahead in the
-			 * list and keep adding the number of ports on each EM
-			 * to the config. UGH!
-			 */
-			speed = p->u.conc.speed;
-			q = p->next;
-			if (q && (q->type == MNODE)) {
-				*ptr = (p->u.conc.nport + 0x80);
-				ptr++;
-				p = q;
-				while (q->next && (q->next->type) == MNODE) {
-					*ptr = (q->u.module.nport + 0x80);
-					ptr++;
-					p = q;
-					q = q->next;
-				}
-				*ptr = q->u.module.nport;
-				ptr++;
-			} else {
-				*ptr = p->u.conc.nport;
-				ptr++;
-			}
-
-			*ptr = speed;
-			ptr++;
-			break;
-		}
-	}
-
-	*ptr = 0xff;
-	return string;
-}
-
-/*
- * Parse a configuration file read into memory as a string.
- */
-static int dgap_parsefile(char **in)
-{
-	struct cnode *p, *brd, *line, *conc;
-	int rc;
-	char *s;
-	int linecnt = 0;
-
-	p = &dgap_head;
-	brd = line = conc = NULL;
-
-	/* perhaps we are adding to an existing list? */
-	while (p->next)
-		p = p->next;
-
-	/* file must start with a BEGIN */
-	while ((rc = dgap_gettok(in)) != BEGIN) {
-		if (rc == 0) {
-			pr_err("unexpected EOF");
-			return -1;
-		}
-	}
-
-	for (; ;) {
-		int board_type = 0;
-		int conc_type = 0;
-		int module_type = 0;
-
-		rc = dgap_gettok(in);
-		if (rc == 0) {
-			pr_err("unexpected EOF");
-			return -1;
-		}
-
-		switch (rc) {
-		case BEGIN:	/* should only be 1 begin */
-			pr_err("unexpected config_begin\n");
-			return -1;
-
-		case END:
-			return 0;
-
-		case BOARD:	/* board info */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-
-			p->type = BNODE;
-			p->u.board.status = kstrdup("No", GFP_KERNEL);
-			line = conc = NULL;
-			brd = p;
-			linecnt = -1;
-
-			board_type = dgap_gettok(in);
-			if (board_type == 0) {
-				pr_err("board !!type not specified");
-				return -1;
-			}
-
-			p->u.board.type = board_type;
-
-			break;
-
-		case IO:	/* i/o port */
-			if (p->type != BNODE) {
-				pr_err("IO port only valid for boards");
-				return -1;
-			}
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			p->u.board.portstr = kstrdup(s, GFP_KERNEL);
-			if (kstrtol(s, 0, &p->u.board.port)) {
-				pr_err("bad number for IO port");
-				return -1;
-			}
-			p->u.board.v_port = 1;
-			break;
-
-		case MEM:	/* memory address */
-			if (p->type != BNODE) {
-				pr_err("memory address only valid for boards");
-				return -1;
-			}
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			p->u.board.addrstr = kstrdup(s, GFP_KERNEL);
-			if (kstrtoul(s, 0, &p->u.board.addr)) {
-				pr_err("bad number for memory address");
-				return -1;
-			}
-			p->u.board.v_addr = 1;
-			break;
-
-		case PCIINFO:	/* pci information */
-			if (p->type != BNODE) {
-				pr_err("memory address only valid for boards");
-				return -1;
-			}
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			p->u.board.pcibusstr = kstrdup(s, GFP_KERNEL);
-			if (kstrtoul(s, 0, &p->u.board.pcibus)) {
-				pr_err("bad number for pci bus");
-				return -1;
-			}
-			p->u.board.v_pcibus = 1;
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			p->u.board.pcislotstr = kstrdup(s, GFP_KERNEL);
-			if (kstrtoul(s, 0, &p->u.board.pcislot)) {
-				pr_err("bad number for pci slot");
-				return -1;
-			}
-			p->u.board.v_pcislot = 1;
-			break;
-
-		case METHOD:
-			if (p->type != BNODE) {
-				pr_err("install method only valid for boards");
-				return -1;
-			}
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			p->u.board.method = kstrdup(s, GFP_KERNEL);
-			p->u.board.v_method = 1;
-			break;
-
-		case STATUS:
-			if (p->type != BNODE) {
-				pr_err("config status only valid for boards");
-				return -1;
-			}
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			p->u.board.status = kstrdup(s, GFP_KERNEL);
-			break;
-
-		case NPORTS:	/* number of ports */
-			if (p->type == BNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.board.nport)) {
-					pr_err("bad number for number of ports");
-					return -1;
-				}
-				p->u.board.v_nport = 1;
-			} else if (p->type == CNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.conc.nport)) {
-					pr_err("bad number for number of ports");
-					return -1;
-				}
-				p->u.conc.v_nport = 1;
-			} else if (p->type == MNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.module.nport)) {
-					pr_err("bad number for number of ports");
-					return -1;
-				}
-				p->u.module.v_nport = 1;
-			} else {
-				pr_err("nports only valid for concentrators or modules");
-				return -1;
-			}
-			break;
-
-		case ID:	/* letter ID used in tty name */
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-
-			p->u.board.status = kstrdup(s, GFP_KERNEL);
-
-			if (p->type == CNODE) {
-				p->u.conc.id = kstrdup(s, GFP_KERNEL);
-				p->u.conc.v_id = 1;
-			} else if (p->type == MNODE) {
-				p->u.module.id = kstrdup(s, GFP_KERNEL);
-				p->u.module.v_id = 1;
-			} else {
-				pr_err("id only valid for concentrators or modules");
-				return -1;
-			}
-			break;
-
-		case STARTO:	/* start offset of ID */
-			if (p->type == BNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.board.start)) {
-					pr_err("bad number for start of tty count");
-					return -1;
-				}
-				p->u.board.v_start = 1;
-			} else if (p->type == CNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.conc.start)) {
-					pr_err("bad number for start of tty count");
-					return -1;
-				}
-				p->u.conc.v_start = 1;
-			} else if (p->type == MNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.module.start)) {
-					pr_err("bad number for start of tty count");
-					return -1;
-				}
-				p->u.module.v_start = 1;
-			} else {
-				pr_err("start only valid for concentrators or modules");
-				return -1;
-			}
-			break;
-
-		case TTYN:	/* tty name prefix */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = TNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpeced end of file");
-				return -1;
-			}
-			p->u.ttyname = kstrdup(s, GFP_KERNEL);
-			if (!p->u.ttyname)
-				return -1;
-
-			break;
-
-		case CU:	/* cu name prefix */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = CUNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpeced end of file");
-				return -1;
-			}
-			p->u.cuname = kstrdup(s, GFP_KERNEL);
-			if (!p->u.cuname)
-				return -1;
-
-			break;
-
-		case LINE:	/* line information */
-			if (dgap_checknode(p))
-				return -1;
-			if (!brd) {
-				pr_err("must specify board before line info");
-				return -1;
-			}
-			switch (brd->u.board.type) {
-			case PPCM:
-				pr_err("line not valid for PC/em");
-				return -1;
-			}
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = LNODE;
-			conc = NULL;
-			line = p;
-			linecnt++;
-			break;
-
-		case CONC:	/* concentrator information */
-			if (dgap_checknode(p))
-				return -1;
-			if (!line) {
-				pr_err("must specify line info before concentrator");
-				return -1;
-			}
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = CNODE;
-			conc = p;
-
-			if (linecnt)
-				brd->u.board.conc2++;
-			else
-				brd->u.board.conc1++;
-
-			conc_type = dgap_gettok(in);
-			if (conc_type == 0 || (conc_type != CX &&
-			    conc_type != EPC)) {
-				pr_err("failed to set a type of concentratros");
-				return -1;
-			}
-
-			p->u.conc.type = conc_type;
-
-			break;
-
-		case MOD:	/* EBI module */
-			if (dgap_checknode(p))
-				return -1;
-			if (!brd) {
-				pr_err("must specify board info before EBI modules");
-				return -1;
-			}
-			switch (brd->u.board.type) {
-			case PPCM:
-				linecnt = 0;
-				break;
-			default:
-				if (!conc) {
-					pr_err("must specify concentrator info before EBI module");
-					return -1;
-				}
-			}
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = MNODE;
-
-			if (linecnt)
-				brd->u.board.module2++;
-			else
-				brd->u.board.module1++;
-
-			module_type = dgap_gettok(in);
-			if (module_type == 0 || (module_type != PORTS &&
-			    module_type != MODEM)) {
-				pr_err("failed to set a type of module");
-				return -1;
-			}
-
-			p->u.module.type = module_type;
-
-			break;
-
-		case CABLE:
-			if (p->type == LNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				p->u.line.cable = kstrdup(s, GFP_KERNEL);
-				p->u.line.v_cable = 1;
-			}
-			break;
-
-		case SPEED:	/* sync line speed indication */
-			if (p->type == LNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.line.speed)) {
-					pr_err("bad number for line speed");
-					return -1;
-				}
-				p->u.line.v_speed = 1;
-			} else if (p->type == CNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				if (kstrtol(s, 0, &p->u.conc.speed)) {
-					pr_err("bad number for line speed");
-					return -1;
-				}
-				p->u.conc.v_speed = 1;
-			} else {
-				pr_err("speed valid only for lines or concentrators.");
-				return -1;
-			}
-			break;
-
-		case CONNECT:
-			if (p->type == CNODE) {
-				s = dgap_getword(in);
-				if (!s) {
-					pr_err("unexpected end of file");
-					return -1;
-				}
-				p->u.conc.connect = kstrdup(s, GFP_KERNEL);
-				p->u.conc.v_connect = 1;
-			}
-			break;
-		case PRINT:	/* transparent print name prefix */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = PNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpeced end of file");
-				return -1;
-			}
-			p->u.printname = kstrdup(s, GFP_KERNEL);
-			if (!p->u.printname)
-				return -1;
-
-			break;
-
-		case CMAJOR:	/* major number */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = JNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.majornumber)) {
-				pr_err("bad number for major number");
-				return -1;
-			}
-			break;
-
-		case ALTPIN:	/* altpin setting */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = ANODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.altpin)) {
-				pr_err("bad number for altpin");
-				return -1;
-			}
-			break;
-
-		case USEINTR:		/* enable interrupt setting */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = INTRNODE;
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.useintr)) {
-				pr_err("bad number for useintr");
-				return -1;
-			}
-			break;
-
-		case TTSIZ:	/* size of tty structure */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = TSNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.ttysize)) {
-				pr_err("bad number for ttysize");
-				return -1;
-			}
-			break;
-
-		case CHSIZ:	/* channel structure size */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = CSNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.chsize)) {
-				pr_err("bad number for chsize");
-				return -1;
-			}
-			break;
-
-		case BSSIZ:	/* board structure size */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = BSNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.bssize)) {
-				pr_err("bad number for bssize");
-				return -1;
-			}
-			break;
-
-		case UNTSIZ:	/* sched structure size */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = USNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.unsize)) {
-				pr_err("bad number for schedsize");
-				return -1;
-			}
-			break;
-
-		case F2SIZ:	/* f2200 structure size */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = FSNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.f2size)) {
-				pr_err("bad number for f2200size");
-				return -1;
-			}
-			break;
-
-		case VPSIZ:	/* vpix structure size */
-			if (dgap_checknode(p))
-				return -1;
-
-			p->next = kzalloc(sizeof(struct cnode), GFP_KERNEL);
-			if (!p->next)
-				return -1;
-
-			p = p->next;
-			p->type = VSNODE;
-
-			s = dgap_getword(in);
-			if (!s) {
-				pr_err("unexpected end of file");
-				return -1;
-			}
-			if (kstrtol(s, 0, &p->u.vpixsize)) {
-				pr_err("bad number for vpixsize");
-				return -1;
-			}
-			break;
-		}
-	}
-}
-
-static void dgap_cleanup_nodes(void)
-{
-	struct cnode *p;
-
-	p = &dgap_head;
-
-	while (p) {
-		struct cnode *tmp = p->next;
-
-		if (p->type == NULLNODE) {
-			p = tmp;
-			continue;
-		}
-
-		switch (p->type) {
-		case BNODE:
-			kfree(p->u.board.portstr);
-			kfree(p->u.board.addrstr);
-			kfree(p->u.board.pcibusstr);
-			kfree(p->u.board.pcislotstr);
-			kfree(p->u.board.method);
-			break;
-		case CNODE:
-			kfree(p->u.conc.id);
-			kfree(p->u.conc.connect);
-			break;
-		case MNODE:
-			kfree(p->u.module.id);
-			break;
-		case TNODE:
-			kfree(p->u.ttyname);
-			break;
-		case CUNODE:
-			kfree(p->u.cuname);
-			break;
-		case LNODE:
-			kfree(p->u.line.cable);
-			break;
-		case PNODE:
-			kfree(p->u.printname);
-			break;
-		}
-
-		kfree(p->u.board.status);
-		kfree(p);
-		p = tmp;
-	}
-}
-
-/*
- * Retrives the current custom baud rate from FEP memory,
- * and returns it back to the user.
- * Returns 0 on error.
- */
-static uint dgap_get_custom_baud(struct channel_t *ch)
-{
-	u8 __iomem *vaddr;
-	ulong offset;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-
-	if (!ch->ch_bd || ch->ch_bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-
-	if (!(ch->ch_bd->bd_flags & BD_FEP5PLUS))
-		return 0;
-
-	vaddr = ch->ch_bd->re_map_membase;
-
-	if (!vaddr)
-		return 0;
-
-	/*
-	 * Go get from fep mem, what the fep
-	 * believes the custom baud rate is.
-	 */
-	offset = (ioread16(vaddr + ECS_SEG) << 4) + (ch->ch_portnum * 0x28)
-	       + LINE_SPEED;
-
-	return readw(vaddr + offset);
-}
-
-/*
- * Remap PCI memory.
- */
-static int dgap_remap(struct board_t *brd)
-{
-	if (!brd || brd->magic != DGAP_BOARD_MAGIC)
-		return -EIO;
-
-	if (!request_mem_region(brd->membase, 0x200000, "dgap"))
-		return -ENOMEM;
-
-	if (!request_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000,
-					"dgap"))
-		goto err_req_mem;
-
-	brd->re_map_membase = ioremap(brd->membase, 0x200000);
-	if (!brd->re_map_membase)
-		goto err_remap_mem;
-
-	brd->re_map_port = ioremap((brd->membase + PCI_IO_OFFSET), 0x200000);
-	if (!brd->re_map_port)
-		goto err_remap_port;
-
-	return 0;
-
-err_remap_port:
-	iounmap(brd->re_map_membase);
-err_remap_mem:
-	release_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000);
-err_req_mem:
-	release_mem_region(brd->membase, 0x200000);
-
-	return -ENOMEM;
-}
-
-static void dgap_unmap(struct board_t *brd)
-{
-	iounmap(brd->re_map_port);
-	iounmap(brd->re_map_membase);
-	release_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000);
-	release_mem_region(brd->membase, 0x200000);
-}
-
-/*
- * dgap_parity_scan()
- *
- * Convert the FEP5 way of reporting parity errors and breaks into
- * the Linux line discipline way.
- */
-static void dgap_parity_scan(struct channel_t *ch, unsigned char *cbuf,
-				unsigned char *fbuf, int *len)
-{
-	int l = *len;
-	int count = 0;
-	unsigned char *in, *cout, *fout;
-	unsigned char c;
-
-	in = cbuf;
-	cout = cbuf;
-	fout = fbuf;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	while (l--) {
-		c = *in++;
-		switch (ch->pscan_state) {
-		default:
-			/* reset to sanity and fall through */
-			ch->pscan_state = 0;
-
-		case 0:
-			/* No FF seen yet */
-			if (c == (unsigned char) '\377')
-				/* delete this character from stream */
-				ch->pscan_state = 1;
-			else {
-				*cout++ = c;
-				*fout++ = TTY_NORMAL;
-				count += 1;
-			}
-			break;
-
-		case 1:
-			/* first FF seen */
-			if (c == (unsigned char) '\377') {
-				/* doubled ff, transform to single ff */
-				*cout++ = c;
-				*fout++ = TTY_NORMAL;
-				count += 1;
-				ch->pscan_state = 0;
-			} else {
-				/* save value examination in next state */
-				ch->pscan_savechar = c;
-				ch->pscan_state = 2;
-			}
-			break;
-
-		case 2:
-			/* third character of ff sequence */
-
-			*cout++ = c;
-
-			if (ch->pscan_savechar == 0x0) {
-
-				if (c == 0x0) {
-					ch->ch_err_break++;
-					*fout++ = TTY_BREAK;
-				} else {
-					ch->ch_err_parity++;
-					*fout++ = TTY_PARITY;
-				}
-			}
-
-			count += 1;
-			ch->pscan_state = 0;
-		}
-	}
-	*len = count;
-}
-
-/*=======================================================================
- *
- *      dgap_input - Process received data.
- *
- *              ch      - Pointer to channel structure.
- *
- *=======================================================================*/
-
-static void dgap_input(struct channel_t *ch)
-{
-	struct board_t *bd;
-	struct bs_t __iomem *bs;
-	struct tty_struct *tp;
-	struct tty_ldisc *ld;
-	uint rmask;
-	uint head;
-	uint tail;
-	int data_len;
-	ulong lock_flags;
-	ulong lock_flags2;
-	int flip_len;
-	int len;
-	int n;
-	u8 *buf;
-	u8 tmpchar;
-	int s;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	tp = ch->ch_tun.un_tty;
-
-	bs  = ch->ch_bs;
-	if (!bs)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	/*
-	 *      Figure the number of characters in the buffer.
-	 *      Exit immediately if none.
-	 */
-
-	rmask = ch->ch_rsize - 1;
-
-	head = readw(&(bs->rx_head));
-	head &= rmask;
-	tail = readw(&(bs->rx_tail));
-	tail &= rmask;
-
-	data_len = (head - tail) & rmask;
-
-	if (data_len == 0) {
-		writeb(1, &(bs->idata));
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return;
-	}
-
-	/*
-	 * If the device is not open, or CREAD is off, flush
-	 * input data and return immediately.
-	 */
-	if ((bd->state != BOARD_READY) || !tp  ||
-	    (tp->magic != TTY_MAGIC) ||
-	    !(ch->ch_tun.un_flags & UN_ISOPEN) ||
-	    !(tp->termios.c_cflag & CREAD) ||
-	    (ch->ch_tun.un_flags & UN_CLOSING)) {
-
-		writew(head, &(bs->rx_tail));
-		writeb(1, &(bs->idata));
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return;
-	}
-
-	/*
-	 * If we are throttled, simply don't read any data.
-	 */
-	if (ch->ch_flags & CH_RXBLOCK) {
-		writeb(1, &(bs->idata));
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return;
-	}
-
-	/*
-	 *      Ignore oruns.
-	 */
-	tmpchar = readb(&(bs->orun));
-	if (tmpchar) {
-		ch->ch_err_overrun++;
-		writeb(0, &(bs->orun));
-	}
-
-	/* Decide how much data we can send into the tty layer */
-	flip_len = TTY_FLIPBUF_SIZE;
-
-	/* Chop down the length, if needed */
-	len = min(data_len, flip_len);
-	len = min(len, (N_TTY_BUF_SIZE - 1));
-
-	ld = tty_ldisc_ref(tp);
-
-#ifdef TTY_DONT_FLIP
-	/*
-	 * If the DONT_FLIP flag is on, don't flush our buffer, and act
-	 * like the ld doesn't have any space to put the data right now.
-	 */
-	if (test_bit(TTY_DONT_FLIP, &tp->flags))
-		len = 0;
-#endif
-
-	/*
-	 * If we were unable to get a reference to the ld,
-	 * don't flush our buffer, and act like the ld doesn't
-	 * have any space to put the data right now.
-	 */
-	if (!ld) {
-		len = 0;
-	} else {
-		/*
-		 * If ld doesn't have a pointer to a receive_buf function,
-		 * flush the data, then act like the ld doesn't have any
-		 * space to put the data right now.
-		 */
-		if (!ld->ops->receive_buf) {
-			writew(head, &(bs->rx_tail));
-			len = 0;
-		}
-	}
-
-	if (len <= 0) {
-		writeb(1, &(bs->idata));
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		if (ld)
-			tty_ldisc_deref(ld);
-		return;
-	}
-
-	buf = ch->ch_bd->flipbuf;
-	n = len;
-
-	/*
-	 * n now contains the most amount of data we can copy,
-	 * bounded either by our buffer size or the amount
-	 * of data the card actually has pending...
-	 */
-	while (n) {
-
-		s = ((head >= tail) ? head : ch->ch_rsize) - tail;
-		s = min(s, n);
-
-		if (s <= 0)
-			break;
-
-		memcpy_fromio(buf, ch->ch_raddr + tail, s);
-
-		tail += s;
-		buf += s;
-
-		n -= s;
-		/* Flip queue if needed */
-		tail &= rmask;
-	}
-
-	writew(tail, &(bs->rx_tail));
-	writeb(1, &(bs->idata));
-	ch->ch_rxcount += len;
-
-	/*
-	 * If we are completely raw, we don't need to go through a lot
-	 * of the tty layers that exist.
-	 * In this case, we take the shortest and fastest route we
-	 * can to relay the data to the user.
-	 *
-	 * On the other hand, if we are not raw, we need to go through
-	 * the tty layer, which has its API more well defined.
-	 */
-	if (I_PARMRK(tp) || I_BRKINT(tp) || I_INPCK(tp)) {
-		dgap_parity_scan(ch, ch->ch_bd->flipbuf,
-				 ch->ch_bd->flipflagbuf, &len);
-
-		len = tty_buffer_request_room(tp->port, len);
-		tty_insert_flip_string_flags(tp->port, ch->ch_bd->flipbuf,
-			ch->ch_bd->flipflagbuf, len);
-	} else {
-		len = tty_buffer_request_room(tp->port, len);
-		tty_insert_flip_string(tp->port, ch->ch_bd->flipbuf, len);
-	}
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	/* Tell the tty layer its okay to "eat" the data now */
-	tty_flip_buffer_push(tp->port);
-
-	if (ld)
-		tty_ldisc_deref(ld);
-
-}
-
-static void dgap_write_wakeup(struct board_t *bd, struct channel_t *ch,
-			      struct un_t *un, u32 mask,
-			      unsigned long *irq_flags1,
-			      unsigned long *irq_flags2)
-{
-	if (!(un->un_flags & mask))
-		return;
-
-	un->un_flags &= ~mask;
-
-	if (!(un->un_flags & UN_ISOPEN))
-		return;
-
-	if ((un->un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-	    un->un_tty->ldisc->ops->write_wakeup) {
-		spin_unlock_irqrestore(&ch->ch_lock, *irq_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, *irq_flags1);
-
-		(un->un_tty->ldisc->ops->write_wakeup)(un->un_tty);
-
-		spin_lock_irqsave(&bd->bd_lock, *irq_flags1);
-		spin_lock_irqsave(&ch->ch_lock, *irq_flags2);
-	}
-	wake_up_interruptible(&un->un_tty->write_wait);
-	wake_up_interruptible(&un->un_flags_wait);
-}
-
-/************************************************************************
- * Determines when CARRIER changes state and takes appropriate
- * action.
- ************************************************************************/
-static void dgap_carrier(struct channel_t *ch)
-{
-	struct board_t *bd;
-
-	int virt_carrier = 0;
-	int phys_carrier = 0;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	/* Make sure altpin is always set correctly */
-	if (ch->ch_digi.digi_flags & DIGI_ALTPIN) {
-		ch->ch_dsr      = DM_CD;
-		ch->ch_cd       = DM_DSR;
-	} else {
-		ch->ch_dsr      = DM_DSR;
-		ch->ch_cd       = DM_CD;
-	}
-
-	if (ch->ch_mistat & D_CD(ch))
-		phys_carrier = 1;
-
-	if (ch->ch_digi.digi_flags & DIGI_FORCEDCD)
-		virt_carrier = 1;
-
-	if (ch->ch_c_cflag & CLOCAL)
-		virt_carrier = 1;
-
-	/*
-	 * Test for a VIRTUAL carrier transition to HIGH.
-	 */
-	if (((ch->ch_flags & CH_FCAR) == 0) && (virt_carrier == 1)) {
-
-		/*
-		 * When carrier rises, wake any threads waiting
-		 * for carrier in the open routine.
-		 */
-
-		if (waitqueue_active(&(ch->ch_flags_wait)))
-			wake_up_interruptible(&ch->ch_flags_wait);
-	}
-
-	/*
-	 * Test for a PHYSICAL carrier transition to HIGH.
-	 */
-	if (((ch->ch_flags & CH_CD) == 0) && (phys_carrier == 1)) {
-
-		/*
-		 * When carrier rises, wake any threads waiting
-		 * for carrier in the open routine.
-		 */
-
-		if (waitqueue_active(&(ch->ch_flags_wait)))
-			wake_up_interruptible(&ch->ch_flags_wait);
-	}
-
-	/*
-	 *  Test for a PHYSICAL transition to low, so long as we aren't
-	 *  currently ignoring physical transitions (which is what "virtual
-	 *  carrier" indicates).
-	 *
-	 *  The transition of the virtual carrier to low really doesn't
-	 *  matter... it really only means "ignore carrier state", not
-	 *  "make pretend that carrier is there".
-	 */
-	if ((virt_carrier == 0) &&
-	    ((ch->ch_flags & CH_CD) != 0) &&
-	    (phys_carrier == 0)) {
-
-		/*
-		 *   When carrier drops:
-		 *
-		 *   Drop carrier on all open units.
-		 *
-		 *   Flush queues, waking up any task waiting in the
-		 *   line discipline.
-		 *
-		 *   Send a hangup to the control terminal.
-		 *
-		 *   Enable all select calls.
-		 */
-		if (waitqueue_active(&(ch->ch_flags_wait)))
-			wake_up_interruptible(&ch->ch_flags_wait);
-
-		if (ch->ch_tun.un_open_count > 0)
-			tty_hangup(ch->ch_tun.un_tty);
-
-		if (ch->ch_pun.un_open_count > 0)
-			tty_hangup(ch->ch_pun.un_tty);
-	}
-
-	/*
-	 *  Make sure that our cached values reflect the current reality.
-	 */
-	if (virt_carrier == 1)
-		ch->ch_flags |= CH_FCAR;
-	else
-		ch->ch_flags &= ~CH_FCAR;
-
-	if (phys_carrier == 1)
-		ch->ch_flags |= CH_CD;
-	else
-		ch->ch_flags &= ~CH_CD;
-}
-
-/*=======================================================================
- *
- *      dgap_event - FEP to host event processing routine.
- *
- *              bd     - Board of current event.
- *
- *=======================================================================*/
-static int dgap_event(struct board_t *bd)
-{
-	struct channel_t *ch;
-	ulong lock_flags;
-	ulong lock_flags2;
-	struct bs_t __iomem *bs;
-	u8 __iomem *event;
-	u8 __iomem *vaddr;
-	struct ev_t __iomem *eaddr;
-	uint head;
-	uint tail;
-	int port;
-	int reason;
-	int modem;
-	int b1;
-
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return -EIO;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-
-	vaddr = bd->re_map_membase;
-
-	if (!vaddr) {
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	eaddr = (struct ev_t __iomem *) (vaddr + EVBUF);
-
-	/* Get our head and tail */
-	head = readw(&(eaddr->ev_head));
-	tail = readw(&(eaddr->ev_tail));
-
-	/*
-	 * Forget it if pointers out of range.
-	 */
-
-	if (head >= EVMAX - EVSTART || tail >= EVMAX - EVSTART ||
-	    (head | tail) & 03) {
-		/* Let go of board lock */
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	/*
-	 * Loop to process all the events in the buffer.
-	 */
-	while (tail != head) {
-
-		/*
-		 * Get interrupt information.
-		 */
-
-		event = bd->re_map_membase + tail + EVSTART;
-
-		port   = ioread8(event);
-		reason = ioread8(event + 1);
-		modem  = ioread8(event + 2);
-		b1     = ioread8(event + 3);
-
-		/*
-		 * Make sure the interrupt is valid.
-		 */
-		if (port >= bd->nasync)
-			goto next;
-
-		if (!(reason & (IFMODEM | IFBREAK | IFTLW | IFTEM | IFDATA)))
-			goto next;
-
-		ch = bd->channels[port];
-
-		if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-			goto next;
-
-		/*
-		 * If we have made it here, the event was valid.
-		 * Lock down the channel.
-		 */
-		spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-		bs = ch->ch_bs;
-
-		if (!bs) {
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			goto next;
-		}
-
-		/*
-		 * Process received data.
-		 */
-		if (reason & IFDATA) {
-
-			/*
-			 * ALL LOCKS *MUST* BE DROPPED BEFORE CALLING INPUT!
-			 * input could send some data to ld, which in turn
-			 * could do a callback to one of our other functions.
-			 */
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-			dgap_input(ch);
-
-			spin_lock_irqsave(&bd->bd_lock, lock_flags);
-			spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-			if (ch->ch_flags & CH_RACTIVE)
-				ch->ch_flags |= CH_RENABLE;
-			else
-				writeb(1, &(bs->idata));
-
-			if (ch->ch_flags & CH_RWAIT) {
-				ch->ch_flags &= ~CH_RWAIT;
-
-				wake_up_interruptible
-					(&ch->ch_tun.un_flags_wait);
-			}
-		}
-
-		/*
-		 * Process Modem change signals.
-		 */
-		if (reason & IFMODEM) {
-			ch->ch_mistat = modem;
-			dgap_carrier(ch);
-		}
-
-		/*
-		 * Process break.
-		 */
-		if (reason & IFBREAK) {
-
-			if (ch->ch_tun.un_tty) {
-				/* A break has been indicated */
-				ch->ch_err_break++;
-				tty_buffer_request_room
-					(ch->ch_tun.un_tty->port, 1);
-				tty_insert_flip_char(ch->ch_tun.un_tty->port,
-						     0, TTY_BREAK);
-				tty_flip_buffer_push(ch->ch_tun.un_tty->port);
-			}
-		}
-
-		/*
-		 * Process Transmit low.
-		 */
-		if (reason & IFTLW) {
-			dgap_write_wakeup(bd, ch, &ch->ch_tun, UN_LOW,
-					  &lock_flags, &lock_flags2);
-			dgap_write_wakeup(bd, ch, &ch->ch_pun, UN_LOW,
-					  &lock_flags, &lock_flags2);
-			if (ch->ch_flags & CH_WLOW) {
-				ch->ch_flags &= ~CH_WLOW;
-				wake_up_interruptible(&ch->ch_flags_wait);
-			}
-		}
-
-		/*
-		 * Process Transmit empty.
-		 */
-		if (reason & IFTEM) {
-			dgap_write_wakeup(bd, ch, &ch->ch_tun, UN_EMPTY,
-					  &lock_flags, &lock_flags2);
-			dgap_write_wakeup(bd, ch, &ch->ch_pun, UN_EMPTY,
-					  &lock_flags, &lock_flags2);
-			if (ch->ch_flags & CH_WEMPTY) {
-				ch->ch_flags &= ~CH_WEMPTY;
-				wake_up_interruptible(&ch->ch_flags_wait);
-			}
-		}
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-
-next:
-		tail = (tail + 4) & (EVMAX - EVSTART - 4);
-	}
-
-	writew(tail, &(eaddr->ev_tail));
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	return 0;
-}
-
-/*
- * Our board poller function.
- */
-static void dgap_poll_tasklet(unsigned long data)
-{
-	struct board_t *bd = (struct board_t *) data;
-	ulong lock_flags;
-	char __iomem *vaddr;
-	u16 head, tail;
-
-	if (!bd || (bd->magic != DGAP_BOARD_MAGIC))
-		return;
-
-	if (bd->inhibit_poller)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-
-	vaddr = bd->re_map_membase;
-
-	/*
-	 * If board is ready, parse deeper to see if there is anything to do.
-	 */
-	if (bd->state == BOARD_READY) {
-
-		struct ev_t __iomem *eaddr;
-
-		if (!bd->re_map_membase) {
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			return;
-		}
-		if (!bd->re_map_port) {
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			return;
-		}
-
-		if (!bd->nasync)
-			goto out;
-
-		eaddr = (struct ev_t __iomem *) (vaddr + EVBUF);
-
-		/* Get our head and tail */
-		head = readw(&(eaddr->ev_head));
-		tail = readw(&(eaddr->ev_tail));
-
-		/*
-		 * If there is an event pending. Go service it.
-		 */
-		if (head != tail) {
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			dgap_event(bd);
-			spin_lock_irqsave(&bd->bd_lock, lock_flags);
-		}
-
-out:
-		/*
-		 * If board is doing interrupts, ACK the interrupt.
-		 */
-		if (bd && bd->intr_running)
-			readb(bd->re_map_port + 2);
-
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return;
-	}
-
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-}
-
-/*
- * dgap_found_board()
- *
- * A board has been found, init it.
- */
-static struct board_t *dgap_found_board(struct pci_dev *pdev, int id,
-					int boardnum)
-{
-	struct board_t *brd;
-	unsigned int pci_irq;
-	int i;
-	int ret;
-
-	/* get the board structure and prep it */
-	brd = kzalloc(sizeof(struct board_t), GFP_KERNEL);
-	if (!brd)
-		return ERR_PTR(-ENOMEM);
-
-	/* store the info for the board we've found */
-	brd->magic = DGAP_BOARD_MAGIC;
-	brd->boardnum = boardnum;
-	brd->vendor = dgap_pci_tbl[id].vendor;
-	brd->device = dgap_pci_tbl[id].device;
-	brd->pdev = pdev;
-	brd->pci_bus = pdev->bus->number;
-	brd->pci_slot = PCI_SLOT(pdev->devfn);
-	brd->name = dgap_ids[id].name;
-	brd->maxports = dgap_ids[id].maxports;
-	brd->type = dgap_ids[id].config_type;
-	brd->dpatype = dgap_ids[id].dpatype;
-	brd->dpastatus = BD_NOFEP;
-	init_waitqueue_head(&brd->state_wait);
-
-	spin_lock_init(&brd->bd_lock);
-
-	brd->inhibit_poller	= FALSE;
-	brd->wait_for_bios	= 0;
-	brd->wait_for_fep	= 0;
-
-	for (i = 0; i < MAXPORTS; i++)
-		brd->channels[i] = NULL;
-
-	/* store which card & revision we have */
-	pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &brd->subvendor);
-	pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &brd->subdevice);
-	pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev);
-
-	pci_irq = pdev->irq;
-	brd->irq = pci_irq;
-
-	/* get the PCI Base Address Registers */
-
-	/* Xr Jupiter and EPC use BAR 2 */
-	if (brd->device == PCI_DEV_XRJ_DID || brd->device == PCI_DEV_EPCJ_DID) {
-		brd->membase     = pci_resource_start(pdev, 2);
-		brd->membase_end = pci_resource_end(pdev, 2);
-	}
-	/* Everyone else uses BAR 0 */
-	else {
-		brd->membase     = pci_resource_start(pdev, 0);
-		brd->membase_end = pci_resource_end(pdev, 0);
-	}
-
-	if (!brd->membase) {
-		ret = -ENODEV;
-		goto free_brd;
-	}
-
-	if (brd->membase & 1)
-		brd->membase &= ~3;
-	else
-		brd->membase &= ~15;
-
-	/*
-	 * On the PCI boards, there is no IO space allocated
-	 * The I/O registers will be in the first 3 bytes of the
-	 * upper 2MB of the 4MB memory space.  The board memory
-	 * will be mapped into the low 2MB of the 4MB memory space
-	 */
-	brd->port = brd->membase + PCI_IO_OFFSET;
-	brd->port_end = brd->port + PCI_IO_SIZE_DGAP;
-
-	/*
-	 * Special initialization for non-PLX boards
-	 */
-	if (brd->device != PCI_DEV_XRJ_DID && brd->device != PCI_DEV_EPCJ_DID) {
-		unsigned short cmd;
-
-		pci_write_config_byte(pdev, 0x40, 0);
-		pci_write_config_byte(pdev, 0x46, 0);
-
-		/* Limit burst length to 2 doubleword transactions */
-		pci_write_config_byte(pdev, 0x42, 1);
-
-		/*
-		 * Enable IO and mem if not already done.
-		 * This was needed for support on Itanium.
-		 */
-		pci_read_config_word(pdev, PCI_COMMAND, &cmd);
-		cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
-		pci_write_config_word(pdev, PCI_COMMAND, cmd);
-	}
-
-	/* init our poll helper tasklet */
-	tasklet_init(&brd->helper_tasklet, dgap_poll_tasklet,
-			(unsigned long) brd);
-
-	ret = dgap_remap(brd);
-	if (ret)
-		goto free_brd;
-
-	pr_info("dgap: board %d: %s (rev %d), irq %ld\n",
-		boardnum, brd->name, brd->rev, brd->irq);
-
-	return brd;
-
-free_brd:
-	kfree(brd);
-
-	return ERR_PTR(ret);
-}
-
-/*
- * dgap_intr()
- *
- * Driver interrupt handler.
- */
-static irqreturn_t dgap_intr(int irq, void *voidbrd)
-{
-	struct board_t *brd = voidbrd;
-
-	if (!brd)
-		return IRQ_NONE;
-
-	/*
-	 * Check to make sure its for us.
-	 */
-	if (brd->magic != DGAP_BOARD_MAGIC)
-		return IRQ_NONE;
-
-	brd->intr_count++;
-
-	/*
-	 * Schedule tasklet to run at a better time.
-	 */
-	tasklet_schedule(&brd->helper_tasklet);
-	return IRQ_HANDLED;
-}
-
-/*****************************************************************************
-*
-* Function:
-*
-*    dgap_poll_handler
-*
-* Author:
-*
-*    Scott H Kilau
-*
-* Parameters:
-*
-*    dummy -- ignored
-*
-* Return Values:
-*
-*    none
-*
-* Description:
-*
-*    As each timer expires, it determines (a) whether the "transmit"
-*    waiter needs to be woken up, and (b) whether the poller needs to
-*    be rescheduled.
-*
-******************************************************************************/
-
-static void dgap_poll_handler(ulong dummy)
-{
-	unsigned int i;
-	struct board_t *brd;
-	unsigned long lock_flags;
-	ulong new_time;
-
-	dgap_poll_counter++;
-
-	/*
-	 * Do not start the board state machine until
-	 * driver tells us its up and running, and has
-	 * everything it needs.
-	 */
-	if (dgap_driver_state != DRIVER_READY)
-		goto schedule_poller;
-
-	/*
-	 * If we have just 1 board, or the system is not SMP,
-	 * then use the typical old style poller.
-	 * Otherwise, use our new tasklet based poller, which should
-	 * speed things up for multiple boards.
-	 */
-	if ((dgap_numboards == 1) || (num_online_cpus() <= 1)) {
-		for (i = 0; i < dgap_numboards; i++) {
-
-			brd = dgap_board[i];
-
-			if (brd->state == BOARD_FAILED)
-				continue;
-			if (!brd->intr_running)
-				/* Call the real board poller directly */
-				dgap_poll_tasklet((unsigned long) brd);
-		}
-	} else {
-		/*
-		 * Go thru each board, kicking off a
-		 * tasklet for each if needed
-		 */
-		for (i = 0; i < dgap_numboards; i++) {
-			brd = dgap_board[i];
-
-			/*
-			 * Attempt to grab the board lock.
-			 *
-			 * If we can't get it, no big deal, the next poll
-			 * will get it. Basically, I just really don't want
-			 * to spin in here, because I want to kick off my
-			 * tasklets as fast as I can, and then get out the
-			 * poller.
-			 */
-			if (!spin_trylock(&brd->bd_lock))
-				continue;
-
-			/*
-			 * If board is in a failed state, don't bother
-			 *  scheduling a tasklet
-			 */
-			if (brd->state == BOARD_FAILED) {
-				spin_unlock(&brd->bd_lock);
-				continue;
-			}
-
-			/* Schedule a poll helper task */
-			if (!brd->intr_running)
-				tasklet_schedule(&brd->helper_tasklet);
-
-			/*
-			 * Can't do DGAP_UNLOCK here, as we don't have
-			 * lock_flags because we did a trylock above.
-			 */
-			spin_unlock(&brd->bd_lock);
-		}
-	}
-
-schedule_poller:
-
-	/*
-	 * Schedule ourself back at the nominal wakeup interval.
-	 */
-	spin_lock_irqsave(&dgap_poll_lock, lock_flags);
-	dgap_poll_time +=  dgap_jiffies_from_ms(dgap_poll_tick);
-
-	new_time = dgap_poll_time - jiffies;
-
-	if ((ulong) new_time >= 2 * dgap_poll_tick) {
-		dgap_poll_time =
-			jiffies +  dgap_jiffies_from_ms(dgap_poll_tick);
-	}
-
-	dgap_poll_timer.function = dgap_poll_handler;
-	dgap_poll_timer.data = 0;
-	dgap_poll_timer.expires = dgap_poll_time;
-	spin_unlock_irqrestore(&dgap_poll_lock, lock_flags);
-
-	if (!dgap_poll_stop)
-		add_timer(&dgap_poll_timer);
-}
-
-/*=======================================================================
- *
- *      dgap_cmdb - Sends a 2 byte command to the FEP.
- *
- *              ch      - Pointer to channel structure.
- *              cmd     - Command to be sent.
- *              byte1   - Integer containing first byte to be sent.
- *              byte2   - Integer containing second byte to be sent.
- *              ncmds   - Wait until ncmds or fewer cmds are left
- *                        in the cmd buffer before returning.
- *
- *=======================================================================*/
-static void dgap_cmdb(struct channel_t *ch, u8 cmd, u8 byte1,
-			u8 byte2, uint ncmds)
-{
-	char __iomem *vaddr;
-	struct __iomem cm_t *cm_addr;
-	uint count;
-	uint n;
-	u16 head;
-	u16 tail;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * Check if board is still alive.
-	 */
-	if (ch->ch_bd->state == BOARD_FAILED)
-		return;
-
-	/*
-	 * Make sure the pointers are in range before
-	 * writing to the FEP memory.
-	 */
-	vaddr = ch->ch_bd->re_map_membase;
-
-	if (!vaddr)
-		return;
-
-	cm_addr = (struct cm_t __iomem *) (vaddr + CMDBUF);
-	head = readw(&(cm_addr->cm_head));
-
-	/*
-	 * Forget it if pointers out of range.
-	 */
-	if (head >= (CMDMAX - CMDSTART) || (head & 03)) {
-		ch->ch_bd->state = BOARD_FAILED;
-		return;
-	}
-
-	/*
-	 * Put the data in the circular command buffer.
-	 */
-	writeb(cmd, (vaddr + head + CMDSTART + 0));
-	writeb((u8) ch->ch_portnum, (vaddr + head + CMDSTART + 1));
-	writeb(byte1, (vaddr + head + CMDSTART + 2));
-	writeb(byte2, (vaddr + head + CMDSTART + 3));
-
-	head = (head + 4) & (CMDMAX - CMDSTART - 4);
-
-	writew(head, &(cm_addr->cm_head));
-
-	/*
-	 * Wait if necessary before updating the head
-	 * pointer to limit the number of outstanding
-	 * commands to the FEP.   If the time spent waiting
-	 * is outlandish, declare the FEP dead.
-	 */
-	for (count = dgap_count ;;) {
-
-		head = readw(&(cm_addr->cm_head));
-		tail = readw(&(cm_addr->cm_tail));
-
-		n = (head - tail) & (CMDMAX - CMDSTART - 4);
-
-		if (n <= ncmds * sizeof(struct cm_t))
-			break;
-
-		if (--count == 0) {
-			ch->ch_bd->state = BOARD_FAILED;
-			return;
-		}
-		udelay(10);
-	}
-}
-
-/*=======================================================================
- *
- *      dgap_cmdw - Sends a 1 word command to the FEP.
- *
- *              ch      - Pointer to channel structure.
- *              cmd     - Command to be sent.
- *              word    - Integer containing word to be sent.
- *              ncmds   - Wait until ncmds or fewer cmds are left
- *                        in the cmd buffer before returning.
- *
- *=======================================================================*/
-static void dgap_cmdw(struct channel_t *ch, u8 cmd, u16 word, uint ncmds)
-{
-	char __iomem *vaddr;
-	struct __iomem cm_t *cm_addr;
-	uint count;
-	uint n;
-	u16 head;
-	u16 tail;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * Check if board is still alive.
-	 */
-	if (ch->ch_bd->state == BOARD_FAILED)
-		return;
-
-	/*
-	 * Make sure the pointers are in range before
-	 * writing to the FEP memory.
-	 */
-	vaddr = ch->ch_bd->re_map_membase;
-	if (!vaddr)
-		return;
-
-	cm_addr = (struct cm_t __iomem *) (vaddr + CMDBUF);
-	head = readw(&(cm_addr->cm_head));
-
-	/*
-	 * Forget it if pointers out of range.
-	 */
-	if (head >= (CMDMAX - CMDSTART) || (head & 03)) {
-		ch->ch_bd->state = BOARD_FAILED;
-		return;
-	}
-
-	/*
-	 * Put the data in the circular command buffer.
-	 */
-	writeb(cmd, (vaddr + head + CMDSTART + 0));
-	writeb((u8) ch->ch_portnum, (vaddr + head + CMDSTART + 1));
-	writew((u16) word, (vaddr + head + CMDSTART + 2));
-
-	head = (head + 4) & (CMDMAX - CMDSTART - 4);
-
-	writew(head, &(cm_addr->cm_head));
-
-	/*
-	 * Wait if necessary before updating the head
-	 * pointer to limit the number of outstanding
-	 * commands to the FEP.   If the time spent waiting
-	 * is outlandish, declare the FEP dead.
-	 */
-	for (count = dgap_count ;;) {
-
-		head = readw(&(cm_addr->cm_head));
-		tail = readw(&(cm_addr->cm_tail));
-
-		n = (head - tail) & (CMDMAX - CMDSTART - 4);
-
-		if (n <= ncmds * sizeof(struct cm_t))
-			break;
-
-		if (--count == 0) {
-			ch->ch_bd->state = BOARD_FAILED;
-			return;
-		}
-		udelay(10);
-	}
-}
-
-/*=======================================================================
- *
- *      dgap_cmdw_ext - Sends a extended word command to the FEP.
- *
- *              ch      - Pointer to channel structure.
- *              cmd     - Command to be sent.
- *              word    - Integer containing word to be sent.
- *              ncmds   - Wait until ncmds or fewer cmds are left
- *                        in the cmd buffer before returning.
- *
- *=======================================================================*/
-static void dgap_cmdw_ext(struct channel_t *ch, u16 cmd, u16 word, uint ncmds)
-{
-	char __iomem *vaddr;
-	struct __iomem cm_t *cm_addr;
-	uint count;
-	uint n;
-	u16 head;
-	u16 tail;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * Check if board is still alive.
-	 */
-	if (ch->ch_bd->state == BOARD_FAILED)
-		return;
-
-	/*
-	 * Make sure the pointers are in range before
-	 * writing to the FEP memory.
-	 */
-	vaddr = ch->ch_bd->re_map_membase;
-	if (!vaddr)
-		return;
-
-	cm_addr = (struct cm_t __iomem *) (vaddr + CMDBUF);
-	head = readw(&(cm_addr->cm_head));
-
-	/*
-	 * Forget it if pointers out of range.
-	 */
-	if (head >= (CMDMAX - CMDSTART) || (head & 03)) {
-		ch->ch_bd->state = BOARD_FAILED;
-		return;
-	}
-
-	/*
-	 * Put the data in the circular command buffer.
-	 */
-
-	/* Write an FF to tell the FEP that we want an extended command */
-	writeb((u8) 0xff, (vaddr + head + CMDSTART + 0));
-
-	writeb((u8) ch->ch_portnum, (vaddr + head + CMDSTART + 1));
-	writew((u16) cmd, (vaddr + head + CMDSTART + 2));
-
-	/*
-	 * If the second part of the command won't fit,
-	 * put it at the beginning of the circular buffer.
-	 */
-	if (((head + 4) >= ((CMDMAX - CMDSTART)) || (head & 03)))
-		writew((u16) word, (vaddr + CMDSTART));
-	else
-		writew((u16) word, (vaddr + head + CMDSTART + 4));
-
-	head = (head + 8) & (CMDMAX - CMDSTART - 4);
-
-	writew(head, &(cm_addr->cm_head));
-
-	/*
-	 * Wait if necessary before updating the head
-	 * pointer to limit the number of outstanding
-	 * commands to the FEP.   If the time spent waiting
-	 * is outlandish, declare the FEP dead.
-	 */
-	for (count = dgap_count ;;) {
-
-		head = readw(&(cm_addr->cm_head));
-		tail = readw(&(cm_addr->cm_tail));
-
-		n = (head - tail) & (CMDMAX - CMDSTART - 4);
-
-		if (n <= ncmds * sizeof(struct cm_t))
-			break;
-
-		if (--count == 0) {
-			ch->ch_bd->state = BOARD_FAILED;
-			return;
-		}
-		udelay(10);
-	}
-}
-
-/*=======================================================================
- *
- *      dgap_wmove - Write data to FEP buffer.
- *
- *              ch      - Pointer to channel structure.
- *              buf     - Pointer to characters to be moved.
- *              cnt     - Number of characters to move.
- *
- *=======================================================================*/
-static void dgap_wmove(struct channel_t *ch, char *buf, uint cnt)
-{
-	int n;
-	char __iomem *taddr;
-	struct bs_t __iomem *bs;
-	u16 head;
-
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * Check parameters.
-	 */
-	bs   = ch->ch_bs;
-	head = readw(&(bs->tx_head));
-
-	/*
-	 * If pointers are out of range, just return.
-	 */
-	if ((cnt > ch->ch_tsize) ||
-	    (unsigned)(head - ch->ch_tstart) >= ch->ch_tsize)
-		return;
-
-	/*
-	 * If the write wraps over the top of the circular buffer,
-	 * move the portion up to the wrap point, and reset the
-	 * pointers to the bottom.
-	 */
-	n = ch->ch_tstart + ch->ch_tsize - head;
-
-	if (cnt >= n) {
-		cnt -= n;
-		taddr = ch->ch_taddr + head;
-		memcpy_toio(taddr, buf, n);
-		head = ch->ch_tstart;
-		buf += n;
-	}
-
-	/*
-	 * Move rest of data.
-	 */
-	taddr = ch->ch_taddr + head;
-	n = cnt;
-	memcpy_toio(taddr, buf, n);
-	head += cnt;
-
-	writew(head, &(bs->tx_head));
-}
-
-/*
- * Calls the firmware to reset this channel.
- */
-static void dgap_firmware_reset_port(struct channel_t *ch)
-{
-	dgap_cmdb(ch, CHRESET, 0, 0, 0);
-
-	/*
-	 * Now that the channel is reset, we need to make sure
-	 * all the current settings get reapplied to the port
-	 * in the firmware.
-	 *
-	 * So we will set the driver's cache of firmware
-	 * settings all to 0, and then call param.
-	 */
-	ch->ch_fepiflag = 0;
-	ch->ch_fepcflag = 0;
-	ch->ch_fepoflag = 0;
-	ch->ch_fepstartc = 0;
-	ch->ch_fepstopc = 0;
-	ch->ch_fepastartc = 0;
-	ch->ch_fepastopc = 0;
-	ch->ch_mostat = 0;
-	ch->ch_hflow = 0;
-}
-
-/*=======================================================================
- *
- *      dgap_param - Set Digi parameters.
- *
- *              struct tty_struct *     - TTY for port.
- *
- *=======================================================================*/
-static int dgap_param(struct channel_t *ch, struct board_t *bd, u32 un_type)
-{
-	u16 head;
-	u16 cflag;
-	u16 iflag;
-	u8 mval;
-	u8 hflow;
-
-	/*
-	 * If baud rate is zero, flush queues, and set mval to drop DTR.
-	 */
-	if ((ch->ch_c_cflag & (CBAUD)) == 0) {
-
-		/* flush rx */
-		head = readw(&(ch->ch_bs->rx_head));
-		writew(head, &(ch->ch_bs->rx_tail));
-
-		/* flush tx */
-		head = readw(&(ch->ch_bs->tx_head));
-		writew(head, &(ch->ch_bs->tx_tail));
-
-		ch->ch_flags |= (CH_BAUD0);
-
-		/* Drop RTS and DTR */
-		ch->ch_mval &= ~(D_RTS(ch)|D_DTR(ch));
-		mval = D_DTR(ch) | D_RTS(ch);
-		ch->ch_baud_info = 0;
-
-	} else if (ch->ch_custom_speed && (bd->bd_flags & BD_FEP5PLUS)) {
-		/*
-		 * Tell the fep to do the command
-		 */
-
-		dgap_cmdw_ext(ch, 0xff01, ch->ch_custom_speed, 0);
-
-		/*
-		 * Now go get from fep mem, what the fep
-		 * believes the custom baud rate is.
-		 */
-		ch->ch_custom_speed = dgap_get_custom_baud(ch);
-		ch->ch_baud_info = ch->ch_custom_speed;
-
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-			ch->ch_mval |= (D_RTS(ch)|D_DTR(ch));
-		}
-		mval = D_DTR(ch) | D_RTS(ch);
-
-	} else {
-		/*
-		 * Set baud rate, character size, and parity.
-		 */
-
-
-		int iindex = 0;
-		int jindex = 0;
-		int baud = 0;
-
-		ulong bauds[4][16] = {
-			{ /* slowbaud */
-				0,	50,	75,	110,
-				134,	150,	200,	300,
-				600,	1200,	1800,	2400,
-				4800,	9600,	19200,	38400 },
-			{ /* slowbaud & CBAUDEX */
-				0,	57600,	115200,	230400,
-				460800,	150,	200,	921600,
-				600,	1200,	1800,	2400,
-				4800,	9600,	19200,	38400 },
-			{ /* fastbaud */
-				0,	57600,	76800,	115200,
-				14400,	57600,	230400,	76800,
-				115200,	230400,	28800,	460800,
-				921600,	9600,	19200,	38400 },
-			{ /* fastbaud & CBAUDEX */
-				0,	57600,	115200,	230400,
-				460800,	150,	200,	921600,
-				600,	1200,	1800,	2400,
-				4800,	9600,	19200,	38400 }
-		};
-
-		/*
-		 * Only use the TXPrint baud rate if the
-		 * terminal unit is NOT open
-		 */
-		if (!(ch->ch_tun.un_flags & UN_ISOPEN) &&
-		    un_type == DGAP_PRINT)
-			baud = C_BAUD(ch->ch_pun.un_tty) & 0xff;
-		else
-			baud = C_BAUD(ch->ch_tun.un_tty) & 0xff;
-
-		if (ch->ch_c_cflag & CBAUDEX)
-			iindex = 1;
-
-		if (ch->ch_digi.digi_flags & DIGI_FAST)
-			iindex += 2;
-
-		jindex = baud;
-
-		if ((iindex >= 0) && (iindex < 4) &&
-		    (jindex >= 0) && (jindex < 16))
-			baud = bauds[iindex][jindex];
-		else
-			baud = 0;
-
-		if (baud == 0)
-			baud = 9600;
-
-		ch->ch_baud_info = baud;
-
-		/*
-		 * CBAUD has bit position 0x1000 set these days to
-		 * indicate Linux baud rate remap.
-		 * We use a different bit assignment for high speed.
-		 * Clear this bit out while grabbing the parts of
-		 * "cflag" we want.
-		 */
-		cflag = ch->ch_c_cflag & ((CBAUD ^ CBAUDEX) | PARODD | PARENB |
-						   CSTOPB | CSIZE);
-
-		/*
-		 * HUPCL bit is used by FEP to indicate fast baud
-		 * table is to be used.
-		 */
-		if ((ch->ch_digi.digi_flags & DIGI_FAST) ||
-		    (ch->ch_c_cflag & CBAUDEX))
-			cflag |= HUPCL;
-
-		if ((ch->ch_c_cflag & CBAUDEX) &&
-		    !(ch->ch_digi.digi_flags & DIGI_FAST)) {
-			/*
-			 * The below code is trying to guarantee that only
-			 * baud rates 115200, 230400, 460800, 921600 are
-			 * remapped. We use exclusive or  because the various
-			 * baud rates share common bit positions and therefore
-			 * can't be tested for easily.
-			 */
-			tcflag_t tcflag = (ch->ch_c_cflag & CBAUD) | CBAUDEX;
-			int baudpart = 0;
-
-			/*
-			 * Map high speed requests to index
-			 * into FEP's baud table
-			 */
-			switch (tcflag) {
-			case B57600:
-				baudpart = 1;
-				break;
-#ifdef B76800
-			case B76800:
-				baudpart = 2;
-				break;
-#endif
-			case B115200:
-				baudpart = 3;
-				break;
-			case B230400:
-				baudpart = 9;
-				break;
-			case B460800:
-				baudpart = 11;
-				break;
-#ifdef B921600
-			case B921600:
-				baudpart = 12;
-				break;
-#endif
-			default:
-				baudpart = 0;
-			}
-
-			if (baudpart)
-				cflag = (cflag & ~(CBAUD | CBAUDEX)) | baudpart;
-		}
-
-		cflag &= 0xffff;
-
-		if (cflag != ch->ch_fepcflag) {
-			ch->ch_fepcflag = (u16) (cflag & 0xffff);
-
-			/*
-			 * Okay to have channel and board
-			 * locks held calling this
-			 */
-			dgap_cmdw(ch, SCFLAG, (u16) cflag, 0);
-		}
-
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-			ch->ch_mval |= (D_RTS(ch)|D_DTR(ch));
-		}
-		mval = D_DTR(ch) | D_RTS(ch);
-	}
-
-	/*
-	 * Get input flags.
-	 */
-	iflag = ch->ch_c_iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK |
-				  INPCK | ISTRIP | IXON | IXANY | IXOFF);
-
-	if ((ch->ch_startc == _POSIX_VDISABLE) ||
-	    (ch->ch_stopc == _POSIX_VDISABLE)) {
-		iflag &= ~(IXON | IXOFF);
-		ch->ch_c_iflag &= ~(IXON | IXOFF);
-	}
-
-	/*
-	 * Only the IBM Xr card can switch between
-	 * 232 and 422 modes on the fly
-	 */
-	if (bd->device == PCI_DEV_XR_IBM_DID) {
-		if (ch->ch_digi.digi_flags & DIGI_422)
-			dgap_cmdb(ch, SCOMMODE, MODE_422, 0, 0);
-		else
-			dgap_cmdb(ch, SCOMMODE, MODE_232, 0, 0);
-	}
-
-	if (ch->ch_digi.digi_flags & DIGI_ALTPIN)
-		iflag |= IALTPIN;
-
-	if (iflag != ch->ch_fepiflag) {
-		ch->ch_fepiflag = iflag;
-
-		/* Okay to have channel and board locks held calling this */
-		dgap_cmdw(ch, SIFLAG, (u16) ch->ch_fepiflag, 0);
-	}
-
-	/*
-	 * Select hardware handshaking.
-	 */
-	hflow = 0;
-
-	if (ch->ch_c_cflag & CRTSCTS)
-		hflow |= (D_RTS(ch) | D_CTS(ch));
-	if (ch->ch_digi.digi_flags & RTSPACE)
-		hflow |= D_RTS(ch);
-	if (ch->ch_digi.digi_flags & DTRPACE)
-		hflow |= D_DTR(ch);
-	if (ch->ch_digi.digi_flags & CTSPACE)
-		hflow |= D_CTS(ch);
-	if (ch->ch_digi.digi_flags & DSRPACE)
-		hflow |= D_DSR(ch);
-	if (ch->ch_digi.digi_flags & DCDPACE)
-		hflow |= D_CD(ch);
-
-	if (hflow != ch->ch_hflow) {
-		ch->ch_hflow = hflow;
-
-		/* Okay to have channel and board locks held calling this */
-		dgap_cmdb(ch, SHFLOW, (u8) hflow, 0xff, 0);
-	}
-
-	/*
-	 * Set RTS and/or DTR Toggle if needed,
-	 * but only if product is FEP5+ based.
-	 */
-	if (bd->bd_flags & BD_FEP5PLUS) {
-		u16 hflow2 = 0;
-
-		if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE)
-			hflow2 |= (D_RTS(ch));
-		if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE)
-			hflow2 |= (D_DTR(ch));
-
-		dgap_cmdw_ext(ch, 0xff03, hflow2, 0);
-	}
-
-	/*
-	 * Set modem control lines.
-	 */
-
-	mval ^= ch->ch_mforce & (mval ^ ch->ch_mval);
-
-	if (ch->ch_mostat ^ mval) {
-		ch->ch_mostat = mval;
-
-		/* Okay to have channel and board locks held calling this */
-		dgap_cmdb(ch, SMODEM, (u8) mval, D_RTS(ch)|D_DTR(ch), 0);
-	}
-
-	/*
-	 * Read modem signals, and then call carrier function.
-	 */
-	ch->ch_mistat = readb(&(ch->ch_bs->m_stat));
-	dgap_carrier(ch);
-
-	/*
-	 * Set the start and stop characters.
-	 */
-	if (ch->ch_startc != ch->ch_fepstartc ||
-	    ch->ch_stopc != ch->ch_fepstopc) {
-		ch->ch_fepstartc = ch->ch_startc;
-		ch->ch_fepstopc =  ch->ch_stopc;
-
-		/* Okay to have channel and board locks held calling this */
-		dgap_cmdb(ch, SFLOWC, ch->ch_fepstartc, ch->ch_fepstopc, 0);
-	}
-
-	/*
-	 * Set the Auxiliary start and stop characters.
-	 */
-	if (ch->ch_astartc != ch->ch_fepastartc ||
-	    ch->ch_astopc != ch->ch_fepastopc) {
-		ch->ch_fepastartc = ch->ch_astartc;
-		ch->ch_fepastopc = ch->ch_astopc;
-
-		/* Okay to have channel and board locks held calling this */
-		dgap_cmdb(ch, SAFLOWC, ch->ch_fepastartc, ch->ch_fepastopc, 0);
-	}
-
-	return 0;
-}
-
-/*
- * dgap_block_til_ready()
- *
- * Wait for DCD, if needed.
- */
-static int dgap_block_til_ready(struct tty_struct *tty, struct file *file,
-				struct channel_t *ch)
-{
-	int retval = 0;
-	struct un_t *un;
-	ulong lock_flags;
-	uint old_flags;
-	int sleep_on_un_flags;
-
-	if (!tty || tty->magic != TTY_MAGIC || !file || !ch ||
-		ch->magic != DGAP_CHANNEL_MAGIC)
-		return -EIO;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return -EIO;
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-
-	ch->ch_wopen++;
-
-	/* Loop forever */
-	while (1) {
-
-		sleep_on_un_flags = 0;
-
-		/*
-		 * If board has failed somehow during our sleep,
-		 * bail with error.
-		 */
-		if (ch->ch_bd->state == BOARD_FAILED) {
-			retval = -EIO;
-			break;
-		}
-
-		/* If tty was hung up, break out of loop and set error. */
-		if (tty_hung_up_p(file)) {
-			retval = -EAGAIN;
-			break;
-		}
-
-		/*
-		 * If either unit is in the middle of the fragile part of close,
-		 * we just cannot touch the channel safely.
-		 * Go back to sleep, knowing that when the channel can be
-		 * touched safely, the close routine will signal the
-		 * ch_wait_flags to wake us back up.
-		 */
-		if (!((ch->ch_tun.un_flags | ch->ch_pun.un_flags) &
-		      UN_CLOSING)) {
-
-			/*
-			 * Our conditions to leave cleanly and happily:
-			 * 1) NONBLOCKING on the tty is set.
-			 * 2) CLOCAL is set.
-			 * 3) DCD (fake or real) is active.
-			 */
-
-			if (file->f_flags & O_NONBLOCK)
-				break;
-
-			if (tty->flags & (1 << TTY_IO_ERROR))
-				break;
-
-			if (ch->ch_flags & CH_CD)
-				break;
-
-			if (ch->ch_flags & CH_FCAR)
-				break;
-		} else {
-			sleep_on_un_flags = 1;
-		}
-
-		/*
-		 * If there is a signal pending, the user probably
-		 * interrupted (ctrl-c) us.
-		 * Leave loop with error set.
-		 */
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-
-		/*
-		 * Store the flags before we let go of channel lock
-		 */
-		if (sleep_on_un_flags)
-			old_flags = ch->ch_tun.un_flags | ch->ch_pun.un_flags;
-		else
-			old_flags = ch->ch_flags;
-
-		/*
-		 * Let go of channel lock before calling schedule.
-		 * Our poller will get any FEP events and wake us up when DCD
-		 * eventually goes active.
-		 */
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-		/*
-		 * Wait for something in the flags to change
-		 * from the current value.
-		 */
-		if (sleep_on_un_flags) {
-			retval = wait_event_interruptible(un->un_flags_wait,
-				(old_flags != (ch->ch_tun.un_flags |
-					       ch->ch_pun.un_flags)));
-		} else {
-			retval = wait_event_interruptible(ch->ch_flags_wait,
-				(old_flags != ch->ch_flags));
-		}
-
-		/*
-		 * We got woken up for some reason.
-		 * Before looping around, grab our channel lock.
-		 */
-		spin_lock_irqsave(&ch->ch_lock, lock_flags);
-	}
-
-	ch->ch_wopen--;
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	return retval;
-}
-
-/*
- * dgap_tty_flush_buffer()
- *
- * Flush Tx buffer (make in == out)
- */
-static void dgap_tty_flush_buffer(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-	u16 head;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	ch->ch_flags &= ~CH_STOP;
-	head = readw(&(ch->ch_bs->tx_head));
-	dgap_cmdw(ch, FLUSHTX, (u16) head, 0);
-	dgap_cmdw(ch, RESUMETX, 0, 0);
-	if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) {
-		ch->ch_tun.un_flags &= ~(UN_LOW|UN_EMPTY);
-		wake_up_interruptible(&ch->ch_tun.un_flags_wait);
-	}
-	if (ch->ch_pun.un_flags & (UN_LOW|UN_EMPTY)) {
-		ch->ch_pun.un_flags &= ~(UN_LOW|UN_EMPTY);
-		wake_up_interruptible(&ch->ch_pun.un_flags_wait);
-	}
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-	if (waitqueue_active(&tty->write_wait))
-		wake_up_interruptible(&tty->write_wait);
-	tty_wakeup(tty);
-}
-
-/*
- * dgap_tty_hangup()
- *
- * Hangup the port.  Like a close, but don't wait for output to drain.
- */
-static void dgap_tty_hangup(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	/* flush the transmit queues */
-	dgap_tty_flush_buffer(tty);
-}
-
-/*
- * dgap_tty_chars_in_buffer()
- *
- * Return number of characters that have not been transmitted yet.
- *
- * This routine is used by the line discipline to determine if there
- * is data waiting to be transmitted/drained/flushed or not.
- */
-static int dgap_tty_chars_in_buffer(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	struct bs_t __iomem *bs;
-	u8 tbusy;
-	uint chars;
-	u16 thead, ttail, tmask, chead, ctail;
-	ulong lock_flags = 0;
-	ulong lock_flags2 = 0;
-
-	if (!tty)
-		return 0;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-
-	bs = ch->ch_bs;
-	if (!bs)
-		return 0;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	tmask = (ch->ch_tsize - 1);
-
-	/* Get Transmit queue pointers */
-	thead = readw(&(bs->tx_head)) & tmask;
-	ttail = readw(&(bs->tx_tail)) & tmask;
-
-	/* Get tbusy flag */
-	tbusy = readb(&(bs->tbusy));
-
-	/* Get Command queue pointers */
-	chead = readw(&(ch->ch_cm->cm_head));
-	ctail = readw(&(ch->ch_cm->cm_tail));
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	/*
-	 * The only way we know for sure if there is no pending
-	 * data left to be transferred, is if:
-	 * 1) Transmit head and tail are equal (empty).
-	 * 2) Command queue head and tail are equal (empty).
-	 * 3) The "TBUSY" flag is 0. (Transmitter not busy).
-	 */
-
-	if ((ttail == thead) && (tbusy == 0) && (chead == ctail)) {
-		chars = 0;
-	} else {
-		if (thead >= ttail)
-			chars = thead - ttail;
-		else
-			chars = thead - ttail + ch->ch_tsize;
-		/*
-		 * Fudge factor here.
-		 * If chars is zero, we know that the command queue had
-		 * something in it or tbusy was set.  Because we cannot
-		 * be sure if there is still some data to be transmitted,
-		 * lets lie, and tell ld we have 1 byte left.
-		 */
-		if (chars == 0) {
-			/*
-			 * If TBUSY is still set, and our tx buffers are empty,
-			 * force the firmware to send me another wakeup after
-			 * TBUSY has been cleared.
-			 */
-			if (tbusy != 0) {
-				spin_lock_irqsave(&ch->ch_lock, lock_flags);
-				un->un_flags |= UN_EMPTY;
-				writeb(1, &(bs->iempty));
-				spin_unlock_irqrestore(&ch->ch_lock,
-						       lock_flags);
-			}
-			chars = 1;
-		}
-	}
-
-	return chars;
-}
-
-static int dgap_wait_for_drain(struct tty_struct *tty)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	struct bs_t __iomem *bs;
-	int ret = 0;
-	uint count = 1;
-	ulong lock_flags = 0;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -EIO;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return -EIO;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return -EIO;
-
-	bs = ch->ch_bs;
-	if (!bs)
-		return -EIO;
-
-	/* Loop until data is drained */
-	while (count != 0) {
-
-		count = dgap_tty_chars_in_buffer(tty);
-
-		if (count == 0)
-			break;
-
-		/* Set flag waiting for drain */
-		spin_lock_irqsave(&ch->ch_lock, lock_flags);
-		un->un_flags |= UN_EMPTY;
-		writeb(1, &(bs->iempty));
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-		/* Go to sleep till we get woken up */
-		ret = wait_event_interruptible(un->un_flags_wait,
-					((un->un_flags & UN_EMPTY) == 0));
-		/* If ret is non-zero, user ctrl-c'ed us */
-		if (ret)
-			break;
-	}
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-	un->un_flags &= ~(UN_EMPTY);
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	return ret;
-}
-
-/*
- * dgap_maxcps_room
- *
- * Reduces bytes_available to the max number of characters
- * that can be sent currently given the maxcps value, and
- * returns the new bytes_available.  This only affects printer
- * output.
- */
-static int dgap_maxcps_room(struct channel_t *ch, struct un_t *un,
-			    int bytes_available)
-{
-	/*
-	 * If its not the Transparent print device, return
-	 * the full data amount.
-	 */
-	if (un->un_type != DGAP_PRINT)
-		return bytes_available;
-
-	if (ch->ch_digi.digi_maxcps > 0 && ch->ch_digi.digi_bufsize > 0) {
-		int cps_limit = 0;
-		unsigned long current_time = jiffies;
-		unsigned long buffer_time = current_time +
-			(HZ * ch->ch_digi.digi_bufsize) /
-			ch->ch_digi.digi_maxcps;
-
-		if (ch->ch_cpstime < current_time) {
-			/* buffer is empty */
-			ch->ch_cpstime = current_time;   /* reset ch_cpstime */
-			cps_limit = ch->ch_digi.digi_bufsize;
-		} else if (ch->ch_cpstime < buffer_time) {
-			/* still room in the buffer */
-			cps_limit = ((buffer_time - ch->ch_cpstime) *
-				     ch->ch_digi.digi_maxcps) / HZ;
-		} else {
-			/* no room in the buffer */
-			cps_limit = 0;
-		}
-
-		bytes_available = min(cps_limit, bytes_available);
-	}
-
-	return bytes_available;
-}
-
-static inline void dgap_set_firmware_event(struct un_t *un, unsigned int event)
-{
-	struct channel_t *ch;
-	struct bs_t __iomem *bs;
-
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-	bs = ch->ch_bs;
-	if (!bs)
-		return;
-
-	if ((event & UN_LOW) != 0) {
-		if ((un->un_flags & UN_LOW) == 0) {
-			un->un_flags |= UN_LOW;
-			writeb(1, &(bs->ilow));
-		}
-	}
-	if ((event & UN_LOW) != 0) {
-		if ((un->un_flags & UN_EMPTY) == 0) {
-			un->un_flags |= UN_EMPTY;
-			writeb(1, &(bs->iempty));
-		}
-	}
-}
-
-/*
- * dgap_tty_write_room()
- *
- * Return space available in Tx buffer
- */
-static int dgap_tty_write_room(struct tty_struct *tty)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	struct bs_t __iomem *bs;
-	u16 head, tail, tmask;
-	int ret;
-	ulong lock_flags = 0;
-
-	if (!tty)
-		return 0;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-
-	bs = ch->ch_bs;
-	if (!bs)
-		return 0;
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-
-	tmask = ch->ch_tsize - 1;
-	head = readw(&(bs->tx_head)) & tmask;
-	tail = readw(&(bs->tx_tail)) & tmask;
-
-	ret = tail - head - 1;
-	if (ret < 0)
-		ret += ch->ch_tsize;
-
-	/* Limit printer to maxcps */
-	ret = dgap_maxcps_room(ch, un, ret);
-
-	/*
-	 * If we are printer device, leave space for
-	 * possibly both the on and off strings.
-	 */
-	if (un->un_type == DGAP_PRINT) {
-		if (!(ch->ch_flags & CH_PRON))
-			ret -= ch->ch_digi.digi_onlen;
-		ret -= ch->ch_digi.digi_offlen;
-	} else {
-		if (ch->ch_flags & CH_PRON)
-			ret -= ch->ch_digi.digi_offlen;
-	}
-
-	if (ret < 0)
-		ret = 0;
-
-	/*
-	 * Schedule FEP to wake us up if needed.
-	 *
-	 * TODO:  This might be overkill...
-	 * Do we really need to schedule callbacks from the FEP
-	 * in every case?  Can we get smarter based on ret?
-	 */
-	dgap_set_firmware_event(un, UN_LOW | UN_EMPTY);
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	return ret;
-}
-
-/*
- * dgap_tty_write()
- *
- * Take data from the user or kernel and send it out to the FEP.
- * In here exists all the Transparent Print magic as well.
- */
-static int dgap_tty_write(struct tty_struct *tty, const unsigned char *buf,
-				int count)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	struct bs_t __iomem *bs;
-	char __iomem *vaddr;
-	u16 head, tail, tmask, remain;
-	int bufcount, n;
-	ulong lock_flags;
-
-	if (!tty)
-		return 0;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-
-	bs = ch->ch_bs;
-	if (!bs)
-		return 0;
-
-	if (!count)
-		return 0;
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-
-	/* Get our space available for the channel from the board */
-	tmask = ch->ch_tsize - 1;
-	head = readw(&(bs->tx_head)) & tmask;
-	tail = readw(&(bs->tx_tail)) & tmask;
-
-	bufcount = tail - head - 1;
-	if (bufcount < 0)
-		bufcount += ch->ch_tsize;
-
-	/*
-	 * Limit printer output to maxcps overall, with bursts allowed
-	 * up to bufsize characters.
-	 */
-	bufcount = dgap_maxcps_room(ch, un, bufcount);
-
-	/*
-	 * Take minimum of what the user wants to send, and the
-	 * space available in the FEP buffer.
-	 */
-	count = min(count, bufcount);
-
-	/*
-	 * Bail if no space left.
-	 */
-	if (count <= 0) {
-		dgap_set_firmware_event(un, UN_LOW | UN_EMPTY);
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-		return 0;
-	}
-
-	/*
-	 * Output the printer ON string, if we are in terminal mode, but
-	 * need to be in printer mode.
-	 */
-	if ((un->un_type == DGAP_PRINT) && !(ch->ch_flags & CH_PRON)) {
-		dgap_wmove(ch, ch->ch_digi.digi_onstr,
-		    (int) ch->ch_digi.digi_onlen);
-		head = readw(&(bs->tx_head)) & tmask;
-		ch->ch_flags |= CH_PRON;
-	}
-
-	/*
-	 * On the other hand, output the printer OFF string, if we are
-	 * currently in printer mode, but need to output to the terminal.
-	 */
-	if ((un->un_type != DGAP_PRINT) && (ch->ch_flags & CH_PRON)) {
-		dgap_wmove(ch, ch->ch_digi.digi_offstr,
-			(int) ch->ch_digi.digi_offlen);
-		head = readw(&(bs->tx_head)) & tmask;
-		ch->ch_flags &= ~CH_PRON;
-	}
-
-	n = count;
-
-	/*
-	 * If the write wraps over the top of the circular buffer,
-	 * move the portion up to the wrap point, and reset the
-	 * pointers to the bottom.
-	 */
-	remain = ch->ch_tstart + ch->ch_tsize - head;
-
-	if (n >= remain) {
-		n -= remain;
-		vaddr = ch->ch_taddr + head;
-
-		memcpy_toio(vaddr, (u8 *) buf, remain);
-
-		head = ch->ch_tstart;
-		buf += remain;
-	}
-
-	if (n > 0) {
-
-		/*
-		 * Move rest of data.
-		 */
-		vaddr = ch->ch_taddr + head;
-		remain = n;
-
-		memcpy_toio(vaddr, (u8 *) buf, remain);
-		head += remain;
-
-	}
-
-	if (count) {
-		ch->ch_txcount += count;
-		head &= tmask;
-		writew(head, &(bs->tx_head));
-	}
-
-	dgap_set_firmware_event(un, UN_LOW | UN_EMPTY);
-
-	/*
-	 * If this is the print device, and the
-	 * printer is still on, we need to turn it
-	 * off before going idle.  If the buffer is
-	 * non-empty, wait until it goes empty.
-	 * Otherwise turn it off right now.
-	 */
-	if ((un->un_type == DGAP_PRINT) && (ch->ch_flags & CH_PRON)) {
-		tail = readw(&(bs->tx_tail)) & tmask;
-
-		if (tail != head) {
-			un->un_flags |= UN_EMPTY;
-			writeb(1, &(bs->iempty));
-		} else {
-			dgap_wmove(ch, ch->ch_digi.digi_offstr,
-				(int) ch->ch_digi.digi_offlen);
-			head = readw(&(bs->tx_head)) & tmask;
-			ch->ch_flags &= ~CH_PRON;
-		}
-	}
-
-	/* Update printer buffer empty time. */
-	if ((un->un_type == DGAP_PRINT) && (ch->ch_digi.digi_maxcps > 0)
-	    && (ch->ch_digi.digi_bufsize > 0)) {
-		ch->ch_cpstime += (HZ * count) / ch->ch_digi.digi_maxcps;
-	}
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	return count;
-}
-
-/*
- * dgap_tty_put_char()
- *
- * Put a character into ch->ch_buf
- *
- *      - used by the line discipline for OPOST processing
- */
-static int dgap_tty_put_char(struct tty_struct *tty, unsigned char c)
-{
-	/*
-	 * Simply call tty_write.
-	 */
-	dgap_tty_write(tty, &c, 1);
-	return 1;
-}
-
-/*
- * Return modem signals to ld.
- */
-static int dgap_tty_tiocmget(struct tty_struct *tty)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	int result;
-	u8 mstat;
-	ulong lock_flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -EIO;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return -EIO;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return -EIO;
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-
-	mstat = readb(&(ch->ch_bs->m_stat));
-	/* Append any outbound signals that might be pending... */
-	mstat |= ch->ch_mostat;
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	result = 0;
-
-	if (mstat & D_DTR(ch))
-		result |= TIOCM_DTR;
-	if (mstat & D_RTS(ch))
-		result |= TIOCM_RTS;
-	if (mstat & D_CTS(ch))
-		result |= TIOCM_CTS;
-	if (mstat & D_DSR(ch))
-		result |= TIOCM_DSR;
-	if (mstat & D_RI(ch))
-		result |= TIOCM_RI;
-	if (mstat & D_CD(ch))
-		result |= TIOCM_CD;
-
-	return result;
-}
-
-/*
- * dgap_tty_tiocmset()
- *
- * Set modem signals, called by ld.
- */
-static int dgap_tty_tiocmset(struct tty_struct *tty,
-		unsigned int set, unsigned int clear)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -EIO;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return -EIO;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return -EIO;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return -EIO;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	if (set & TIOCM_RTS) {
-		ch->ch_mforce |= D_RTS(ch);
-		ch->ch_mval   |= D_RTS(ch);
-	}
-
-	if (set & TIOCM_DTR) {
-		ch->ch_mforce |= D_DTR(ch);
-		ch->ch_mval   |= D_DTR(ch);
-	}
-
-	if (clear & TIOCM_RTS) {
-		ch->ch_mforce |= D_RTS(ch);
-		ch->ch_mval   &= ~(D_RTS(ch));
-	}
-
-	if (clear & TIOCM_DTR) {
-		ch->ch_mforce |= D_DTR(ch);
-		ch->ch_mval   &= ~(D_DTR(ch));
-	}
-
-	dgap_param(ch, bd, un->un_type);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	return 0;
-}
-
-/*
- * dgap_tty_send_break()
- *
- * Send a Break, called by ld.
- */
-static int dgap_tty_send_break(struct tty_struct *tty, int msec)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -EIO;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return -EIO;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return -EIO;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return -EIO;
-
-	switch (msec) {
-	case -1:
-		msec = 0xFFFF;
-		break;
-	case 0:
-		msec = 1;
-		break;
-	default:
-		msec /= 10;
-		break;
-	}
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-#if 0
-	dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0);
-#endif
-	dgap_cmdw(ch, SBREAK, (u16) msec, 0);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	return 0;
-}
-
-/*
- * dgap_tty_wait_until_sent()
- *
- * wait until data has been transmitted, called by ld.
- */
-static void dgap_tty_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	dgap_wait_for_drain(tty);
-}
-
-/*
- * dgap_send_xchar()
- *
- * send a high priority character, called by ld.
- */
-static void dgap_tty_send_xchar(struct tty_struct *tty, char c)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	/*
-	 * This is technically what we should do.
-	 * However, the NIST tests specifically want
-	 * to see each XON or XOFF character that it
-	 * sends, so lets just send each character
-	 * by hand...
-	 */
-#if 0
-	if (c == STOP_CHAR(tty))
-		dgap_cmdw(ch, RPAUSE, 0, 0);
-	else if (c == START_CHAR(tty))
-		dgap_cmdw(ch, RRESUME, 0, 0);
-	else
-		dgap_wmove(ch, &c, 1);
-#else
-	dgap_wmove(ch, &c, 1);
-#endif
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-}
-
-/*
- * Return modem signals to ld.
- */
-static int dgap_get_modem_info(struct channel_t *ch, unsigned int __user *value)
-{
-	int result;
-	u8 mstat;
-	ulong lock_flags;
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-
-	mstat = readb(&(ch->ch_bs->m_stat));
-	/* Append any outbound signals that might be pending... */
-	mstat |= ch->ch_mostat;
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	result = 0;
-
-	if (mstat & D_DTR(ch))
-		result |= TIOCM_DTR;
-	if (mstat & D_RTS(ch))
-		result |= TIOCM_RTS;
-	if (mstat & D_CTS(ch))
-		result |= TIOCM_CTS;
-	if (mstat & D_DSR(ch))
-		result |= TIOCM_DSR;
-	if (mstat & D_RI(ch))
-		result |= TIOCM_RI;
-	if (mstat & D_CD(ch))
-		result |= TIOCM_CD;
-
-	return put_user(result, value);
-}
-
-/*
- * dgap_set_modem_info()
- *
- * Set modem signals, called by ld.
- */
-static int dgap_set_modem_info(struct channel_t *ch, struct board_t *bd,
-			       struct un_t *un, unsigned int command,
-			       unsigned int __user *value)
-{
-	int ret;
-	unsigned int arg;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	ret = get_user(arg, value);
-	if (ret)
-		return ret;
-
-	switch (command) {
-	case TIOCMBIS:
-		if (arg & TIOCM_RTS) {
-			ch->ch_mforce |= D_RTS(ch);
-			ch->ch_mval   |= D_RTS(ch);
-		}
-
-		if (arg & TIOCM_DTR) {
-			ch->ch_mforce |= D_DTR(ch);
-			ch->ch_mval   |= D_DTR(ch);
-		}
-
-		break;
-
-	case TIOCMBIC:
-		if (arg & TIOCM_RTS) {
-			ch->ch_mforce |= D_RTS(ch);
-			ch->ch_mval   &= ~(D_RTS(ch));
-		}
-
-		if (arg & TIOCM_DTR) {
-			ch->ch_mforce |= D_DTR(ch);
-			ch->ch_mval   &= ~(D_DTR(ch));
-		}
-
-		break;
-
-	case TIOCMSET:
-		ch->ch_mforce = D_DTR(ch)|D_RTS(ch);
-
-		if (arg & TIOCM_RTS)
-			ch->ch_mval |= D_RTS(ch);
-		else
-			ch->ch_mval &= ~(D_RTS(ch));
-
-		if (arg & TIOCM_DTR)
-			ch->ch_mval |= (D_DTR(ch));
-		else
-			ch->ch_mval &= ~(D_DTR(ch));
-
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	dgap_param(ch, bd, un->un_type);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	return 0;
-}
-
-/*
- * dgap_tty_digigeta()
- *
- * Ioctl to get the information for ditty.
- *
- *
- *
- */
-static int dgap_tty_digigeta(struct channel_t *ch,
-			     struct digi_t __user *retinfo)
-{
-	struct digi_t tmp;
-	ulong lock_flags;
-
-	if (!retinfo)
-		return -EFAULT;
-
-	memset(&tmp, 0, sizeof(tmp));
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-	memcpy(&tmp, &ch->ch_digi, sizeof(tmp));
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-		return -EFAULT;
-
-	return 0;
-}
-
-/*
- * dgap_tty_digiseta()
- *
- * Ioctl to set the information for ditty.
- *
- *
- *
- */
-static int dgap_tty_digiseta(struct channel_t *ch, struct board_t *bd,
-			     struct un_t *un, struct digi_t __user *new_info)
-{
-	struct digi_t new_digi;
-	ulong lock_flags = 0;
-	unsigned long lock_flags2;
-
-	if (copy_from_user(&new_digi, new_info, sizeof(struct digi_t)))
-		return -EFAULT;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	memcpy(&ch->ch_digi, &new_digi, sizeof(struct digi_t));
-
-	if (ch->ch_digi.digi_maxcps < 1)
-		ch->ch_digi.digi_maxcps = 1;
-
-	if (ch->ch_digi.digi_maxcps > 10000)
-		ch->ch_digi.digi_maxcps = 10000;
-
-	if (ch->ch_digi.digi_bufsize < 10)
-		ch->ch_digi.digi_bufsize = 10;
-
-	if (ch->ch_digi.digi_maxchar < 1)
-		ch->ch_digi.digi_maxchar = 1;
-
-	if (ch->ch_digi.digi_maxchar > ch->ch_digi.digi_bufsize)
-		ch->ch_digi.digi_maxchar = ch->ch_digi.digi_bufsize;
-
-	if (ch->ch_digi.digi_onlen > DIGI_PLEN)
-		ch->ch_digi.digi_onlen = DIGI_PLEN;
-
-	if (ch->ch_digi.digi_offlen > DIGI_PLEN)
-		ch->ch_digi.digi_offlen = DIGI_PLEN;
-
-	dgap_param(ch, bd, un->un_type);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	return 0;
-}
-
-/*
- * dgap_tty_digigetedelay()
- *
- * Ioctl to get the current edelay setting.
- *
- *
- *
- */
-static int dgap_tty_digigetedelay(struct tty_struct *tty, int __user *retinfo)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	int tmp;
-	ulong lock_flags;
-
-	if (!retinfo)
-		return -EFAULT;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -EFAULT;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return -EFAULT;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return -EFAULT;
-
-	memset(&tmp, 0, sizeof(tmp));
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-	tmp = readw(&(ch->ch_bs->edelay));
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-		return -EFAULT;
-
-	return 0;
-}
-
-/*
- * dgap_tty_digisetedelay()
- *
- * Ioctl to set the EDELAY setting
- *
- */
-static int dgap_tty_digisetedelay(struct channel_t *ch, struct board_t *bd,
-				  struct un_t *un, int __user *new_info)
-{
-	int new_digi;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (copy_from_user(&new_digi, new_info, sizeof(int)))
-		return -EFAULT;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	writew((u16) new_digi, &(ch->ch_bs->edelay));
-
-	dgap_param(ch, bd, un->un_type);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-	return 0;
-}
-
-/*
- * dgap_tty_digigetcustombaud()
- *
- * Ioctl to get the current custom baud rate setting.
- */
-static int dgap_tty_digigetcustombaud(struct channel_t *ch, struct un_t *un,
-				      int __user *retinfo)
-{
-	int tmp;
-	ulong lock_flags;
-
-	if (!retinfo)
-		return -EFAULT;
-
-	memset(&tmp, 0, sizeof(tmp));
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-	tmp = dgap_get_custom_baud(ch);
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-		return -EFAULT;
-
-	return 0;
-}
-
-/*
- * dgap_tty_digisetcustombaud()
- *
- * Ioctl to set the custom baud rate setting
- */
-static int dgap_tty_digisetcustombaud(struct channel_t *ch, struct board_t *bd,
-				      struct un_t *un, int __user *new_info)
-{
-	uint new_rate;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (copy_from_user(&new_rate, new_info, sizeof(unsigned int)))
-		return -EFAULT;
-
-	if (bd->bd_flags & BD_FEP5PLUS) {
-
-		spin_lock_irqsave(&bd->bd_lock, lock_flags);
-		spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-		ch->ch_custom_speed = new_rate;
-
-		dgap_param(ch, bd, un->un_type);
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-	}
-
-	return 0;
-}
-
-/*
- * dgap_set_termios()
- */
-static void dgap_tty_set_termios(struct tty_struct *tty,
-				struct ktermios *old_termios)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long lock_flags;
-	unsigned long lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	ch->ch_c_cflag   = tty->termios.c_cflag;
-	ch->ch_c_iflag   = tty->termios.c_iflag;
-	ch->ch_c_oflag   = tty->termios.c_oflag;
-	ch->ch_c_lflag   = tty->termios.c_lflag;
-	ch->ch_startc    = tty->termios.c_cc[VSTART];
-	ch->ch_stopc     = tty->termios.c_cc[VSTOP];
-
-	dgap_carrier(ch);
-	dgap_param(ch, bd, un->un_type);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-}
-
-static void dgap_tty_throttle(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	ch->ch_flags |= (CH_RXBLOCK);
-#if 1
-	dgap_cmdw(ch, RPAUSE, 0, 0);
-#endif
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-}
-
-static void dgap_tty_unthrottle(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	ch->ch_flags &= ~(CH_RXBLOCK);
-
-#if 1
-	dgap_cmdw(ch, RRESUME, 0, 0);
-#endif
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-}
-
-static struct board_t *find_board_by_major(unsigned int major)
-{
-	unsigned int i;
-
-	for (i = 0; i < MAXBOARDS; i++) {
-		struct board_t *brd = dgap_board[i];
-
-		if (!brd)
-			return NULL;
-		if (major == brd->serial_driver->major ||
-		    major == brd->print_driver->major)
-			return brd;
-	}
-
-	return NULL;
-}
-
-/************************************************************************
- *
- * TTY Entry points and helper functions
- *
- ************************************************************************/
-
-/*
- * dgap_tty_open()
- *
- */
-static int dgap_tty_open(struct tty_struct *tty, struct file *file)
-{
-	struct board_t *brd;
-	struct channel_t *ch;
-	struct un_t *un;
-	struct bs_t __iomem *bs;
-	uint major;
-	uint minor;
-	int rc;
-	ulong lock_flags;
-	ulong lock_flags2;
-	u16 head;
-
-	major = MAJOR(tty_devnum(tty));
-	minor = MINOR(tty_devnum(tty));
-
-	brd = find_board_by_major(major);
-	if (!brd)
-		return -EIO;
-
-	/*
-	 * If board is not yet up to a state of READY, go to
-	 * sleep waiting for it to happen or they cancel the open.
-	 */
-	rc = wait_event_interruptible(brd->state_wait,
-		(brd->state & BOARD_READY));
-
-	if (rc)
-		return rc;
-
-	spin_lock_irqsave(&brd->bd_lock, lock_flags);
-
-	/* The wait above should guarantee this cannot happen */
-	if (brd->state != BOARD_READY) {
-		spin_unlock_irqrestore(&brd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	/* If opened device is greater than our number of ports, bail. */
-	if (MINOR(tty_devnum(tty)) > brd->nasync) {
-		spin_unlock_irqrestore(&brd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	ch = brd->channels[minor];
-	if (!ch) {
-		spin_unlock_irqrestore(&brd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	/* Grab channel lock */
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	/* Figure out our type */
-	if (major == brd->serial_driver->major) {
-		un = &brd->channels[minor]->ch_tun;
-		un->un_type = DGAP_SERIAL;
-	} else if (major == brd->print_driver->major) {
-		un = &brd->channels[minor]->ch_pun;
-		un->un_type = DGAP_PRINT;
-	} else {
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&brd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	/* Store our unit into driver_data, so we always have it available. */
-	tty->driver_data = un;
-
-	/*
-	 * Error if channel info pointer is NULL.
-	 */
-	bs = ch->ch_bs;
-	if (!bs) {
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&brd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	/*
-	 * Initialize tty's
-	 */
-	if (!(un->un_flags & UN_ISOPEN)) {
-		/* Store important variables. */
-		un->un_tty     = tty;
-
-		/* Maybe do something here to the TTY struct as well? */
-	}
-
-	/*
-	 * Initialize if neither terminal or printer is open.
-	 */
-	if (!((ch->ch_tun.un_flags | ch->ch_pun.un_flags) & UN_ISOPEN)) {
-
-		ch->ch_mforce = 0;
-		ch->ch_mval = 0;
-
-		/*
-		 * Flush input queue.
-		 */
-		head = readw(&(bs->rx_head));
-		writew(head, &(bs->rx_tail));
-
-		ch->ch_flags = 0;
-		ch->pscan_state = 0;
-		ch->pscan_savechar = 0;
-
-		ch->ch_c_cflag   = tty->termios.c_cflag;
-		ch->ch_c_iflag   = tty->termios.c_iflag;
-		ch->ch_c_oflag   = tty->termios.c_oflag;
-		ch->ch_c_lflag   = tty->termios.c_lflag;
-		ch->ch_startc = tty->termios.c_cc[VSTART];
-		ch->ch_stopc  = tty->termios.c_cc[VSTOP];
-
-		/* TODO: flush our TTY struct here? */
-	}
-
-	dgap_carrier(ch);
-	/*
-	 * Run param in case we changed anything
-	 */
-	dgap_param(ch, brd, un->un_type);
-
-	/*
-	 * follow protocol for opening port
-	 */
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&brd->bd_lock, lock_flags);
-
-	rc = dgap_block_til_ready(tty, file, ch);
-
-	if (!un->un_tty)
-		return -ENODEV;
-
-	/* No going back now, increment our unit and channel counters */
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-	ch->ch_open_count++;
-	un->un_open_count++;
-	un->un_flags |= (UN_ISOPEN);
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-	return rc;
-}
-
-/*
- * dgap_tty_close()
- *
- */
-static void dgap_tty_close(struct tty_struct *tty, struct file *file)
-{
-	struct ktermios *ts;
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	ts = &tty->termios;
-
-	spin_lock_irqsave(&ch->ch_lock, lock_flags);
-
-	/*
-	 * Determine if this is the last close or not - and if we agree about
-	 * which type of close it is with the Line Discipline
-	 */
-	if ((tty->count == 1) && (un->un_open_count != 1)) {
-		/*
-		 * Uh, oh.  tty->count is 1, which means that the tty
-		 * structure will be freed.  un_open_count should always
-		 * be one in these conditions.  If it's greater than
-		 * one, we've got real problems, since it means the
-		 * serial port won't be shutdown.
-		 */
-		un->un_open_count = 1;
-	}
-
-	if (--un->un_open_count < 0)
-		un->un_open_count = 0;
-
-	ch->ch_open_count--;
-
-	if (ch->ch_open_count && un->un_open_count) {
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-		return;
-	}
-
-	/* OK, its the last close on the unit */
-
-	un->un_flags |= UN_CLOSING;
-
-	tty->closing = 1;
-
-	/*
-	 * Only officially close channel if count is 0 and
-	 * DIGI_PRINTER bit is not set.
-	 */
-	if ((ch->ch_open_count == 0) &&
-	    !(ch->ch_digi.digi_flags & DIGI_PRINTER)) {
-
-		ch->ch_flags &= ~(CH_RXBLOCK);
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-
-		/* wait for output to drain */
-		/* This will also return if we take an interrupt */
-
-		dgap_wait_for_drain(tty);
-
-		dgap_tty_flush_buffer(tty);
-		tty_ldisc_flush(tty);
-
-		spin_lock_irqsave(&ch->ch_lock, lock_flags);
-
-		tty->closing = 0;
-
-		/*
-		 * If we have HUPCL set, lower DTR and RTS
-		 */
-		if (ch->ch_c_cflag & HUPCL) {
-			ch->ch_mostat &= ~(D_RTS(ch)|D_DTR(ch));
-			dgap_cmdb(ch, SMODEM, 0, D_DTR(ch)|D_RTS(ch), 0);
-
-			/*
-			 * Go to sleep to ensure RTS/DTR
-			 * have been dropped for modems to see it.
-			 */
-			spin_unlock_irqrestore(&ch->ch_lock,
-					lock_flags);
-
-			/* .25 second delay for dropping RTS/DTR */
-			schedule_timeout_interruptible(msecs_to_jiffies(250));
-
-			spin_lock_irqsave(&ch->ch_lock, lock_flags);
-		}
-
-		ch->pscan_state = 0;
-		ch->pscan_savechar = 0;
-		ch->ch_baud_info = 0;
-
-	}
-
-	/*
-	 * turn off print device when closing print device.
-	 */
-	if ((un->un_type == DGAP_PRINT)  && (ch->ch_flags & CH_PRON)) {
-		dgap_wmove(ch, ch->ch_digi.digi_offstr,
-			(int) ch->ch_digi.digi_offlen);
-		ch->ch_flags &= ~CH_PRON;
-	}
-
-	un->un_tty = NULL;
-	un->un_flags &= ~(UN_ISOPEN | UN_CLOSING);
-	tty->driver_data = NULL;
-
-	wake_up_interruptible(&ch->ch_flags_wait);
-	wake_up_interruptible(&un->un_flags_wait);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags);
-}
-
-static void dgap_tty_start(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	dgap_cmdw(ch, RESUMETX, 0, 0);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-}
-
-static void dgap_tty_stop(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	dgap_cmdw(ch, PAUSETX, 0, 0);
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-}
-
-/*
- * dgap_tty_flush_chars()
- *
- * Flush the cook buffer
- *
- * Note to self, and any other poor souls who venture here:
- *
- * flush in this case DOES NOT mean dispose of the data.
- * instead, it means "stop buffering and send it if you
- * haven't already."  Just guess how I figured that out...   SRW 2-Jun-98
- *
- * It is also always called in interrupt context - JAR 8-Sept-99
- */
-static void dgap_tty_flush_chars(struct tty_struct *tty)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	ulong lock_flags;
-	ulong lock_flags2;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	/* TODO: Do something here */
-
-	spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-	spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-}
-
-/*****************************************************************************
- *
- * The IOCTL function and all of its helpers
- *
- *****************************************************************************/
-
-/*
- * dgap_tty_ioctl()
- *
- * The usual assortment of ioctl's
- */
-static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
-		unsigned long arg)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	int rc;
-	u16 head;
-	ulong lock_flags = 0;
-	ulong lock_flags2 = 0;
-	void __user *uarg = (void __user *) arg;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -ENODEV;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return -ENODEV;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return -ENODEV;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return -ENODEV;
-
-	spin_lock_irqsave(&bd->bd_lock, lock_flags);
-	spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-	if (un->un_open_count <= 0) {
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return -EIO;
-	}
-
-	switch (cmd) {
-
-	/* Here are all the standard ioctl's that we MUST implement */
-
-	case TCSBRK:
-		/*
-		 * TCSBRK is SVID version: non-zero arg --> no break
-		 * this behaviour is exploited by tcdrain().
-		 *
-		 * According to POSIX.1 spec (7.2.2.1.2) breaks should be
-		 * between 0.25 and 0.5 seconds so we'll ask for something
-		 * in the middle: 0.375 seconds.
-		 */
-		rc = tty_check_change(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		if (rc)
-			return rc;
-
-		rc = dgap_wait_for_drain(tty);
-
-		if (rc)
-			return -EINTR;
-
-		spin_lock_irqsave(&bd->bd_lock, lock_flags);
-		spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-		if (((cmd == TCSBRK) && (!arg)) || (cmd == TCSBRKP))
-			dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0);
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-		return 0;
-
-	case TCSBRKP:
-		/* support for POSIX tcsendbreak()
-
-		 * According to POSIX.1 spec (7.2.2.1.2) breaks should be
-		 * between 0.25 and 0.5 seconds so we'll ask for something
-		 * in the middle: 0.375 seconds.
-		 */
-		rc = tty_check_change(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		if (rc)
-			return rc;
-
-		rc = dgap_wait_for_drain(tty);
-		if (rc)
-			return -EINTR;
-
-		spin_lock_irqsave(&bd->bd_lock, lock_flags);
-		spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-		dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0);
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-		return 0;
-
-	case TIOCSBRK:
-		/*
-		 * FEP5 doesn't support turning on a break unconditionally.
-		 * The FEP5 device will stop sending a break automatically
-		 * after the specified time value that was sent when turning on
-		 * the break.
-		 */
-		rc = tty_check_change(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		if (rc)
-			return rc;
-
-		rc = dgap_wait_for_drain(tty);
-		if (rc)
-			return -EINTR;
-
-		spin_lock_irqsave(&bd->bd_lock, lock_flags);
-		spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-
-		dgap_cmdw(ch, SBREAK, (u16) SBREAK_TIME, 0);
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-		return 0;
-
-	case TIOCCBRK:
-		/*
-		 * FEP5 doesn't support turning off a break unconditionally.
-		 * The FEP5 device will stop sending a break automatically
-		 * after the specified time value that was sent when turning on
-		 * the break.
-		 */
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return 0;
-
-	case TIOCGSOFTCAR:
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-		return put_user(C_CLOCAL(tty) ? 1 : 0,
-				(unsigned long __user *) arg);
-
-	case TIOCSSOFTCAR:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-		rc = get_user(arg, (unsigned long __user *) arg);
-		if (rc)
-			return rc;
-
-		spin_lock_irqsave(&bd->bd_lock, lock_flags);
-		spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-		tty->termios.c_cflag = ((tty->termios.c_cflag & ~CLOCAL) |
-						(arg ? CLOCAL : 0));
-		dgap_param(ch, bd, un->un_type);
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-		return 0;
-
-	case TIOCMGET:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_get_modem_info(ch, uarg);
-
-	case TIOCMBIS:
-	case TIOCMBIC:
-	case TIOCMSET:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_set_modem_info(ch, bd, un, cmd, uarg);
-
-		/*
-		 * Here are any additional ioctl's that we want to implement
-		 */
-
-	case TCFLSH:
-		/*
-		 * The linux tty driver doesn't have a flush
-		 * input routine for the driver, assuming all backed
-		 * up data is in the line disc. buffers.  However,
-		 * we all know that's not the case.  Here, we
-		 * act on the ioctl, but then lie and say we didn't
-		 * so the line discipline will process the flush
-		 * also.
-		 */
-		rc = tty_check_change(tty);
-		if (rc) {
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			return rc;
-		}
-
-		if ((arg == TCIFLUSH) || (arg == TCIOFLUSH)) {
-			if (!(un->un_type == DGAP_PRINT)) {
-				head = readw(&(ch->ch_bs->rx_head));
-				writew(head, &(ch->ch_bs->rx_tail));
-				writeb(0, &(ch->ch_bs->orun));
-			}
-		}
-
-		if ((arg != TCOFLUSH) && (arg != TCIOFLUSH)) {
-			/* pretend we didn't recognize this IOCTL */
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-			return -ENOIOCTLCMD;
-		}
-
-		ch->ch_flags &= ~CH_STOP;
-		head = readw(&(ch->ch_bs->tx_head));
-		dgap_cmdw(ch, FLUSHTX, (u16) head, 0);
-		dgap_cmdw(ch, RESUMETX, 0, 0);
-		if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) {
-			ch->ch_tun.un_flags &= ~(UN_LOW|UN_EMPTY);
-			wake_up_interruptible(&ch->ch_tun.un_flags_wait);
-		}
-		if (ch->ch_pun.un_flags & (UN_LOW|UN_EMPTY)) {
-			ch->ch_pun.un_flags &= ~(UN_LOW|UN_EMPTY);
-			wake_up_interruptible(&ch->ch_pun.un_flags_wait);
-		}
-		if (waitqueue_active(&tty->write_wait))
-			wake_up_interruptible(&tty->write_wait);
-
-		/* Can't hold any locks when calling tty_wakeup! */
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		tty_wakeup(tty);
-
-		/* pretend we didn't recognize this IOCTL */
-		return -ENOIOCTLCMD;
-
-	case TCSETSF:
-	case TCSETSW:
-		/*
-		 * The linux tty driver doesn't have a flush
-		 * input routine for the driver, assuming all backed
-		 * up data is in the line disc. buffers.  However,
-		 * we all know that's not the case.  Here, we
-		 * act on the ioctl, but then lie and say we didn't
-		 * so the line discipline will process the flush
-		 * also.
-		 */
-		if (cmd == TCSETSF) {
-			/* flush rx */
-			ch->ch_flags &= ~CH_STOP;
-			head = readw(&(ch->ch_bs->rx_head));
-			writew(head, &(ch->ch_bs->rx_tail));
-		}
-
-		/* now wait for all the output to drain */
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		rc = dgap_wait_for_drain(tty);
-		if (rc)
-			return -EINTR;
-
-		/* pretend we didn't recognize this */
-		return -ENOIOCTLCMD;
-
-	case TCSETAW:
-
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		rc = dgap_wait_for_drain(tty);
-		if (rc)
-			return -EINTR;
-
-		/* pretend we didn't recognize this */
-		return -ENOIOCTLCMD;
-
-	case TCXONC:
-		/*
-		 * The Linux Line Discipline (LD) would do this for us if we
-		 * let it, but we have the special firmware options to do this
-		 * the "right way" regardless of hardware or software flow
-		 * control so we'll do it outselves instead of letting the LD
-		 * do it.
-		 */
-		rc = tty_check_change(tty);
-		if (rc) {
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			return rc;
-		}
-
-		switch (arg) {
-
-		case TCOON:
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			dgap_tty_start(tty);
-			return 0;
-		case TCOOFF:
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			dgap_tty_stop(tty);
-			return 0;
-		case TCION:
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			/* Make the ld do it */
-			return -ENOIOCTLCMD;
-		case TCIOFF:
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			/* Make the ld do it */
-			return -ENOIOCTLCMD;
-		default:
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			return -EINVAL;
-		}
-
-	case DIGI_GETA:
-		/* get information for ditty */
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_tty_digigeta(ch, uarg);
-
-	case DIGI_SETAW:
-	case DIGI_SETAF:
-
-		/* set information for ditty */
-		if (cmd == (DIGI_SETAW)) {
-
-			spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-			spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-			rc = dgap_wait_for_drain(tty);
-			if (rc)
-				return -EINTR;
-			spin_lock_irqsave(&bd->bd_lock, lock_flags);
-			spin_lock_irqsave(&ch->ch_lock, lock_flags2);
-		} else
-			tty_ldisc_flush(tty);
-		/* fall thru */
-
-	case DIGI_SETA:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_tty_digiseta(ch, bd, un, uarg);
-
-	case DIGI_GEDELAY:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_tty_digigetedelay(tty, uarg);
-
-	case DIGI_SEDELAY:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_tty_digisetedelay(ch, bd, un, uarg);
-
-	case DIGI_GETCUSTOMBAUD:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_tty_digigetcustombaud(ch, un, uarg);
-
-	case DIGI_SETCUSTOMBAUD:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return dgap_tty_digisetcustombaud(ch, bd, un, uarg);
-
-	case DIGI_RESET_PORT:
-		dgap_firmware_reset_port(ch);
-		dgap_param(ch, bd, un->un_type);
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-		return 0;
-
-	default:
-		spin_unlock_irqrestore(&ch->ch_lock, lock_flags2);
-		spin_unlock_irqrestore(&bd->bd_lock, lock_flags);
-
-		return -ENOIOCTLCMD;
-	}
-}
-
-static const struct tty_operations dgap_tty_ops = {
-	.open = dgap_tty_open,
-	.close = dgap_tty_close,
-	.write = dgap_tty_write,
-	.write_room = dgap_tty_write_room,
-	.flush_buffer = dgap_tty_flush_buffer,
-	.chars_in_buffer = dgap_tty_chars_in_buffer,
-	.flush_chars = dgap_tty_flush_chars,
-	.ioctl = dgap_tty_ioctl,
-	.set_termios = dgap_tty_set_termios,
-	.stop = dgap_tty_stop,
-	.start = dgap_tty_start,
-	.throttle = dgap_tty_throttle,
-	.unthrottle = dgap_tty_unthrottle,
-	.hangup = dgap_tty_hangup,
-	.put_char = dgap_tty_put_char,
-	.tiocmget = dgap_tty_tiocmget,
-	.tiocmset = dgap_tty_tiocmset,
-	.break_ctl = dgap_tty_send_break,
-	.wait_until_sent = dgap_tty_wait_until_sent,
-	.send_xchar = dgap_tty_send_xchar
-};
-
-/************************************************************************
- *
- * TTY Initialization/Cleanup Functions
- *
- ************************************************************************/
-
-/*
- * dgap_tty_register()
- *
- * Init the tty subsystem for this board.
- */
-static int dgap_tty_register(struct board_t *brd)
-{
-	int rc;
-
-	brd->serial_driver = tty_alloc_driver(MAXPORTS,
-					      TTY_DRIVER_REAL_RAW |
-					      TTY_DRIVER_DYNAMIC_DEV |
-					      TTY_DRIVER_HARDWARE_BREAK);
-	if (IS_ERR(brd->serial_driver))
-		return PTR_ERR(brd->serial_driver);
-
-	snprintf(brd->serial_name, MAXTTYNAMELEN, "tty_dgap_%d_",
-		 brd->boardnum);
-	brd->serial_driver->name = brd->serial_name;
-	brd->serial_driver->name_base = 0;
-	brd->serial_driver->major = 0;
-	brd->serial_driver->minor_start = 0;
-	brd->serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	brd->serial_driver->subtype = SERIAL_TYPE_NORMAL;
-	brd->serial_driver->init_termios = dgap_default_termios;
-	brd->serial_driver->driver_name = DRVSTR;
-
-	/*
-	 * Entry points for driver.  Called by the kernel from
-	 * tty_io.c and n_tty.c.
-	 */
-	tty_set_operations(brd->serial_driver, &dgap_tty_ops);
-
-	/*
-	 * If we're doing transparent print, we have to do all of the above
-	 * again, separately so we don't get the LD confused about what major
-	 * we are when we get into the dgap_tty_open() routine.
-	 */
-	brd->print_driver = tty_alloc_driver(MAXPORTS,
-					     TTY_DRIVER_REAL_RAW |
-					     TTY_DRIVER_DYNAMIC_DEV |
-					     TTY_DRIVER_HARDWARE_BREAK);
-	if (IS_ERR(brd->print_driver)) {
-		rc = PTR_ERR(brd->print_driver);
-		goto free_serial_drv;
-	}
-
-	snprintf(brd->print_name, MAXTTYNAMELEN, "pr_dgap_%d_",
-		 brd->boardnum);
-	brd->print_driver->name = brd->print_name;
-	brd->print_driver->name_base = 0;
-	brd->print_driver->major = 0;
-	brd->print_driver->minor_start = 0;
-	brd->print_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	brd->print_driver->subtype = SERIAL_TYPE_NORMAL;
-	brd->print_driver->init_termios = dgap_default_termios;
-	brd->print_driver->driver_name = DRVSTR;
-
-	/*
-	 * Entry points for driver.  Called by the kernel from
-	 * tty_io.c and n_tty.c.
-	 */
-	tty_set_operations(brd->print_driver, &dgap_tty_ops);
-
-	/* Register tty devices */
-	rc = tty_register_driver(brd->serial_driver);
-	if (rc < 0)
-		goto free_print_drv;
-
-	/* Register Transparent Print devices */
-	rc = tty_register_driver(brd->print_driver);
-	if (rc < 0)
-		goto unregister_serial_drv;
-
-	return 0;
-
-unregister_serial_drv:
-	tty_unregister_driver(brd->serial_driver);
-free_print_drv:
-	put_tty_driver(brd->print_driver);
-free_serial_drv:
-	put_tty_driver(brd->serial_driver);
-
-	return rc;
-}
-
-static void dgap_tty_unregister(struct board_t *brd)
-{
-	tty_unregister_driver(brd->print_driver);
-	tty_unregister_driver(brd->serial_driver);
-	put_tty_driver(brd->print_driver);
-	put_tty_driver(brd->serial_driver);
-}
-
-static int dgap_alloc_flipbuf(struct board_t *brd)
-{
-	/*
-	 * allocate flip buffer for board.
-	 */
-	brd->flipbuf = kmalloc(MYFLIPLEN, GFP_KERNEL);
-	if (!brd->flipbuf)
-		return -ENOMEM;
-
-	brd->flipflagbuf = kmalloc(MYFLIPLEN, GFP_KERNEL);
-	if (!brd->flipflagbuf) {
-		kfree(brd->flipbuf);
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static void dgap_free_flipbuf(struct board_t *brd)
-{
-	kfree(brd->flipbuf);
-	kfree(brd->flipflagbuf);
-}
-
-static struct board_t *dgap_verify_board(struct device *p)
-{
-	struct board_t *bd;
-
-	if (!p)
-		return NULL;
-
-	bd = dev_get_drvdata(p);
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC || bd->state != BOARD_READY)
-		return NULL;
-
-	return bd;
-}
-
-static ssize_t dgap_ports_state_show(struct device *p,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count,
-			"%d %s\n", bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_open_count ? "Open" : "Closed");
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_state, S_IRUSR, dgap_ports_state_show, NULL);
-
-static ssize_t dgap_ports_baud_show(struct device *p,
-				    struct device_attribute *attr,
-				    char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++) {
-		count +=  snprintf(buf + count, PAGE_SIZE - count, "%d %d\n",
-				   bd->channels[i]->ch_portnum,
-				   bd->channels[i]->ch_baud_info);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_baud, S_IRUSR, dgap_ports_baud_show, NULL);
-
-static ssize_t dgap_ports_msignals_show(struct device *p,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++) {
-		if (bd->channels[i]->ch_open_count)
-			count += snprintf(buf + count, PAGE_SIZE - count,
-				"%d %s %s %s %s %s %s\n",
-				bd->channels[i]->ch_portnum,
-				(bd->channels[i]->ch_mostat &
-				 UART_MCR_RTS) ? "RTS" : "",
-				(bd->channels[i]->ch_mistat &
-				 UART_MSR_CTS) ? "CTS" : "",
-				(bd->channels[i]->ch_mostat &
-				 UART_MCR_DTR) ? "DTR" : "",
-				(bd->channels[i]->ch_mistat &
-				 UART_MSR_DSR) ? "DSR" : "",
-				(bd->channels[i]->ch_mistat &
-				 UART_MSR_DCD) ? "DCD" : "",
-				(bd->channels[i]->ch_mistat &
-				 UART_MSR_RI)  ? "RI"  : "");
-		else
-			count += snprintf(buf + count, PAGE_SIZE - count,
-				"%d\n", bd->channels[i]->ch_portnum);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_msignals, S_IRUSR, dgap_ports_msignals_show, NULL);
-
-static ssize_t dgap_ports_iflag_show(struct device *p,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++)
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-				  bd->channels[i]->ch_portnum,
-				  bd->channels[i]->ch_c_iflag);
-	return count;
-}
-static DEVICE_ATTR(ports_iflag, S_IRUSR, dgap_ports_iflag_show, NULL);
-
-static ssize_t dgap_ports_cflag_show(struct device *p,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++)
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-				  bd->channels[i]->ch_portnum,
-				  bd->channels[i]->ch_c_cflag);
-	return count;
-}
-static DEVICE_ATTR(ports_cflag, S_IRUSR, dgap_ports_cflag_show, NULL);
-
-static ssize_t dgap_ports_oflag_show(struct device *p,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++)
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-				  bd->channels[i]->ch_portnum,
-				  bd->channels[i]->ch_c_oflag);
-	return count;
-}
-static DEVICE_ATTR(ports_oflag, S_IRUSR, dgap_ports_oflag_show, NULL);
-
-static ssize_t dgap_ports_lflag_show(struct device *p,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++)
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-				  bd->channels[i]->ch_portnum,
-				  bd->channels[i]->ch_c_lflag);
-	return count;
-}
-static DEVICE_ATTR(ports_lflag, S_IRUSR, dgap_ports_lflag_show, NULL);
-
-static ssize_t dgap_ports_digi_flag_show(struct device *p,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++)
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-				  bd->channels[i]->ch_portnum,
-				  bd->channels[i]->ch_digi.digi_flags);
-	return count;
-}
-static DEVICE_ATTR(ports_digi_flag, S_IRUSR, dgap_ports_digi_flag_show, NULL);
-
-static ssize_t dgap_ports_rxcount_show(struct device *p,
-				       struct device_attribute *attr,
-				       char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++)
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n",
-				  bd->channels[i]->ch_portnum,
-				  bd->channels[i]->ch_rxcount);
-	return count;
-}
-static DEVICE_ATTR(ports_rxcount, S_IRUSR, dgap_ports_rxcount_show, NULL);
-
-static ssize_t dgap_ports_txcount_show(struct device *p,
-				       struct device_attribute *attr,
-				       char *buf)
-{
-	struct board_t *bd;
-	int count = 0;
-	unsigned int i;
-
-	bd = dgap_verify_board(p);
-	if (!bd)
-		return 0;
-
-	for (i = 0; i < bd->nasync; i++)
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n",
-				  bd->channels[i]->ch_portnum,
-				  bd->channels[i]->ch_txcount);
-	return count;
-}
-static DEVICE_ATTR(ports_txcount, S_IRUSR, dgap_ports_txcount_show, NULL);
-
-static ssize_t dgap_tty_state_show(struct device *d,
-				   struct device_attribute *attr,
-				   char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%s", un->un_open_count ?
-			"Open" : "Closed");
-}
-static DEVICE_ATTR(state, S_IRUSR, dgap_tty_state_show, NULL);
-
-static ssize_t dgap_tty_baud_show(struct device *d,
-				  struct device_attribute *attr,
-				  char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_baud_info);
-}
-static DEVICE_ATTR(baud, S_IRUSR, dgap_tty_baud_show, NULL);
-
-static ssize_t dgap_tty_msignals_show(struct device *d,
-				      struct device_attribute *attr,
-				      char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	if (ch->ch_open_count) {
-		return snprintf(buf, PAGE_SIZE, "%s %s %s %s %s %s\n",
-			(ch->ch_mostat & UART_MCR_RTS) ? "RTS" : "",
-			(ch->ch_mistat & UART_MSR_CTS) ? "CTS" : "",
-			(ch->ch_mostat & UART_MCR_DTR) ? "DTR" : "",
-			(ch->ch_mistat & UART_MSR_DSR) ? "DSR" : "",
-			(ch->ch_mistat & UART_MSR_DCD) ? "DCD" : "",
-			(ch->ch_mistat & UART_MSR_RI)  ? "RI"  : "");
-	}
-	return 0;
-}
-static DEVICE_ATTR(msignals, S_IRUSR, dgap_tty_msignals_show, NULL);
-
-static ssize_t dgap_tty_iflag_show(struct device *d,
-				   struct device_attribute *attr,
-				   char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_iflag);
-}
-static DEVICE_ATTR(iflag, S_IRUSR, dgap_tty_iflag_show, NULL);
-
-static ssize_t dgap_tty_cflag_show(struct device *d,
-				   struct device_attribute *attr,
-				   char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_cflag);
-}
-static DEVICE_ATTR(cflag, S_IRUSR, dgap_tty_cflag_show, NULL);
-
-static ssize_t dgap_tty_oflag_show(struct device *d,
-				   struct device_attribute *attr,
-				   char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_oflag);
-}
-static DEVICE_ATTR(oflag, S_IRUSR, dgap_tty_oflag_show, NULL);
-
-static ssize_t dgap_tty_lflag_show(struct device *d,
-				   struct device_attribute *attr,
-				   char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_lflag);
-}
-static DEVICE_ATTR(lflag, S_IRUSR, dgap_tty_lflag_show, NULL);
-
-static ssize_t dgap_tty_digi_flag_show(struct device *d,
-				       struct device_attribute *attr,
-				       char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_digi.digi_flags);
-}
-static DEVICE_ATTR(digi_flag, S_IRUSR, dgap_tty_digi_flag_show, NULL);
-
-static ssize_t dgap_tty_rxcount_show(struct device *d,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_rxcount);
-}
-static DEVICE_ATTR(rxcount, S_IRUSR, dgap_tty_rxcount_show, NULL);
-
-static ssize_t dgap_tty_txcount_show(struct device *d,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_txcount);
-}
-static DEVICE_ATTR(txcount, S_IRUSR, dgap_tty_txcount_show, NULL);
-
-static ssize_t dgap_tty_name_show(struct device *d,
-				  struct device_attribute *attr,
-				  char *buf)
-{
-	struct board_t *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	int cn;
-	int bn;
-	struct cnode *cptr;
-	int found = FALSE;
-	int ncount = 0;
-	int starto = 0;
-	int i;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	bn = bd->boardnum;
-	cn = ch->ch_portnum;
-
-	for (cptr = bd->bd_config; cptr; cptr = cptr->next) {
-
-		if ((cptr->type == BNODE) &&
-		    ((cptr->u.board.type == APORT2_920P) ||
-		     (cptr->u.board.type == APORT4_920P) ||
-		     (cptr->u.board.type == APORT8_920P) ||
-		     (cptr->u.board.type == PAPORT4) ||
-		     (cptr->u.board.type == PAPORT8))) {
-
-			found = TRUE;
-			if (cptr->u.board.v_start)
-				starto = cptr->u.board.start;
-			else
-				starto = 1;
-		}
-
-		if (cptr->type == TNODE && found == TRUE) {
-			char *ptr1;
-
-			if (strstr(cptr->u.ttyname, "tty")) {
-				ptr1 = cptr->u.ttyname;
-				ptr1 += 3;
-			} else
-				ptr1 = cptr->u.ttyname;
-
-			for (i = 0; i < dgap_config_get_num_prts(bd); i++) {
-				if (cn != i)
-					continue;
-
-				return snprintf(buf, PAGE_SIZE, "%s%s%02d\n",
-						(un->un_type == DGAP_PRINT) ?
-						 "pr" : "tty",
-						ptr1, i + starto);
-			}
-		}
-
-		if (cptr->type == CNODE) {
-
-			for (i = 0; i < cptr->u.conc.nport; i++) {
-				if (cn != (i + ncount))
-					continue;
-
-				return snprintf(buf, PAGE_SIZE, "%s%s%02ld\n",
-						(un->un_type == DGAP_PRINT) ?
-						 "pr" : "tty",
-						cptr->u.conc.id,
-						i + (cptr->u.conc.v_start ?
-						     cptr->u.conc.start : 1));
-			}
-
-			ncount += cptr->u.conc.nport;
-		}
-
-		if (cptr->type == MNODE) {
-
-			for (i = 0; i < cptr->u.module.nport; i++) {
-				if (cn != (i + ncount))
-					continue;
-
-				return snprintf(buf, PAGE_SIZE, "%s%s%02ld\n",
-						(un->un_type == DGAP_PRINT) ?
-						 "pr" : "tty",
-						cptr->u.module.id,
-						i + (cptr->u.module.v_start ?
-						     cptr->u.module.start : 1));
-			}
-
-			ncount += cptr->u.module.nport;
-		}
-	}
-
-	return snprintf(buf, PAGE_SIZE, "%s_dgap_%d_%d\n",
-		(un->un_type == DGAP_PRINT) ? "pr" : "tty", bn, cn);
-}
-static DEVICE_ATTR(custom_name, S_IRUSR, dgap_tty_name_show, NULL);
-
-static struct attribute *dgap_sysfs_tty_entries[] = {
-	&dev_attr_state.attr,
-	&dev_attr_baud.attr,
-	&dev_attr_msignals.attr,
-	&dev_attr_iflag.attr,
-	&dev_attr_cflag.attr,
-	&dev_attr_oflag.attr,
-	&dev_attr_lflag.attr,
-	&dev_attr_digi_flag.attr,
-	&dev_attr_rxcount.attr,
-	&dev_attr_txcount.attr,
-	&dev_attr_custom_name.attr,
-	NULL
-};
-
-
-/* this function creates the sys files that will export each signal status
- * to sysfs each value will be put in a separate filename
- */
-static void dgap_create_ports_sysfiles(struct board_t *bd)
-{
-	dev_set_drvdata(&bd->pdev->dev, bd);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_state);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_baud);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_msignals);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_iflag);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_cflag);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_oflag);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_lflag);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_rxcount);
-	device_create_file(&(bd->pdev->dev), &dev_attr_ports_txcount);
-}
-
-/* removes all the sys files created for that port */
-static void dgap_remove_ports_sysfiles(struct board_t *bd)
-{
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_state);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_baud);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_msignals);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_iflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_cflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_oflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_lflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_rxcount);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_txcount);
-}
-
-/*
- * Copies the BIOS code from the user to the board,
- * and starts the BIOS running.
- */
-static void dgap_do_bios_load(struct board_t *brd, const u8 *ubios, int len)
-{
-	u8 __iomem *addr;
-	uint offset;
-	unsigned int i;
-
-	if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase)
-		return;
-
-	addr = brd->re_map_membase;
-
-	/*
-	 * clear POST area
-	 */
-	for (i = 0; i < 16; i++)
-		writeb(0, addr + POSTAREA + i);
-
-	/*
-	 * Download bios
-	 */
-	offset = 0x1000;
-	memcpy_toio(addr + offset, ubios, len);
-
-	writel(0x0bf00401, addr);
-	writel(0, (addr + 4));
-
-	/* Clear the reset, and change states. */
-	writeb(FEPCLR, brd->re_map_port);
-}
-
-/*
- * Checks to see if the BIOS completed running on the card.
- */
-static int dgap_test_bios(struct board_t *brd)
-{
-	u8 __iomem *addr;
-	u16 word;
-	u16 err1;
-	u16 err2;
-
-	if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase)
-		return -EINVAL;
-
-	addr = brd->re_map_membase;
-	word = readw(addr + POSTAREA);
-
-	/*
-	 * It can take 5-6 seconds for a board to
-	 * pass the bios self test and post results.
-	 * Give it 10 seconds.
-	 */
-	brd->wait_for_bios = 0;
-	while (brd->wait_for_bios < 1000) {
-		/* Check to see if BIOS thinks board is good. (GD). */
-		if (word == *(u16 *) "GD")
-			return 0;
-		msleep_interruptible(10);
-		brd->wait_for_bios++;
-		word = readw(addr + POSTAREA);
-	}
-
-	/* Gave up on board after too long of time taken */
-	err1 = readw(addr + SEQUENCE);
-	err2 = readw(addr + ERROR);
-	dev_warn(&brd->pdev->dev, "%s failed diagnostics.  Error #(%x,%x).\n",
-		brd->name, err1, err2);
-	brd->state = BOARD_FAILED;
-	brd->dpastatus = BD_NOBIOS;
-
-	return -EIO;
-}
-
-/*
- * Copies the FEP code from the user to the board,
- * and starts the FEP running.
- */
-static void dgap_do_fep_load(struct board_t *brd, const u8 *ufep, int len)
-{
-	u8 __iomem *addr;
-	uint offset;
-
-	if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase)
-		return;
-
-	addr = brd->re_map_membase;
-
-	/*
-	 * Download FEP
-	 */
-	offset = 0x1000;
-	memcpy_toio(addr + offset, ufep, len);
-
-	/*
-	 * If board is a concentrator product, we need to give
-	 * it its config string describing how the concentrators look.
-	 */
-	if ((brd->type == PCX) || (brd->type == PEPC)) {
-		u8 string[100];
-		u8 __iomem *config;
-		u8 *xconfig;
-		unsigned int i = 0;
-
-		xconfig = dgap_create_config_string(brd, string);
-
-		/* Write string to board memory */
-		config = addr + CONFIG;
-		for (; i < CONFIGSIZE; i++, config++, xconfig++) {
-			writeb(*xconfig, config);
-			if ((*xconfig & 0xff) == 0xff)
-				break;
-		}
-	}
-
-	writel(0xbfc01004, (addr + 0xc34));
-	writel(0x3, (addr + 0xc30));
-
-}
-
-/*
- * Waits for the FEP to report thats its ready for us to use.
- */
-static int dgap_test_fep(struct board_t *brd)
-{
-	u8 __iomem *addr;
-	u16 word;
-	u16 err1;
-	u16 err2;
-
-	if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase)
-		return -EINVAL;
-
-	addr = brd->re_map_membase;
-	word = readw(addr + FEPSTAT);
-
-	/*
-	 * It can take 2-3 seconds for the FEP to
-	 * be up and running. Give it 5 secs.
-	 */
-	brd->wait_for_fep = 0;
-	while (brd->wait_for_fep < 500) {
-		/* Check to see if FEP is up and running now. */
-		if (word == *(u16 *) "OS") {
-			/*
-			 * Check to see if the board can support FEP5+ commands.
-			*/
-			word = readw(addr + FEP5_PLUS);
-			if (word == *(u16 *) "5A")
-				brd->bd_flags |= BD_FEP5PLUS;
-
-			return 0;
-		}
-		msleep_interruptible(10);
-		brd->wait_for_fep++;
-		word = readw(addr + FEPSTAT);
-	}
-
-	/* Gave up on board after too long of time taken */
-	err1 = readw(addr + SEQUENCE);
-	err2 = readw(addr + ERROR);
-	dev_warn(&brd->pdev->dev,
-		 "FEPOS for %s not functioning.  Error #(%x,%x).\n",
-		 brd->name, err1, err2);
-	brd->state = BOARD_FAILED;
-	brd->dpastatus = BD_NOFEP;
-
-	return -EIO;
-}
-
-/*
- * Physically forces the FEP5 card to reset itself.
- */
-static void dgap_do_reset_board(struct board_t *brd)
-{
-	u8 check;
-	u32 check1;
-	u32 check2;
-	unsigned int i;
-
-	if (!brd || (brd->magic != DGAP_BOARD_MAGIC) ||
-	    !brd->re_map_membase || !brd->re_map_port)
-		return;
-
-	/* FEPRST does not vary among supported boards */
-	writeb(FEPRST, brd->re_map_port);
-
-	for (i = 0; i <= 1000; i++) {
-		check = readb(brd->re_map_port) & 0xe;
-		if (check == FEPRST)
-			break;
-		udelay(10);
-
-	}
-	if (i > 1000) {
-		dev_warn(&brd->pdev->dev,
-			 "dgap: Board not resetting...  Failing board.\n");
-		brd->state = BOARD_FAILED;
-		brd->dpastatus = BD_NOFEP;
-		return;
-	}
-
-	/*
-	 * Make sure there really is memory out there.
-	 */
-	writel(0xa55a3cc3, (brd->re_map_membase + LOWMEM));
-	writel(0x5aa5c33c, (brd->re_map_membase + HIGHMEM));
-	check1 = readl(brd->re_map_membase + LOWMEM);
-	check2 = readl(brd->re_map_membase + HIGHMEM);
-
-	if ((check1 != 0xa55a3cc3) || (check2 != 0x5aa5c33c)) {
-		dev_warn(&brd->pdev->dev,
-			 "No memory at %p for board.\n",
-			 brd->re_map_membase);
-		brd->state = BOARD_FAILED;
-		brd->dpastatus = BD_NOFEP;
-		return;
-	}
-}
-
-#ifdef DIGI_CONCENTRATORS_SUPPORTED
-/*
- * Sends a concentrator image into the FEP5 board.
- */
-static void dgap_do_conc_load(struct board_t *brd, u8 *uaddr, int len)
-{
-	char __iomem *vaddr;
-	u16 offset;
-	struct downld_t *to_dp;
-
-	if (!brd || (brd->magic != DGAP_BOARD_MAGIC) || !brd->re_map_membase)
-		return;
-
-	vaddr = brd->re_map_membase;
-
-	offset = readw((u16 *) (vaddr + DOWNREQ));
-	to_dp = (struct downld_t *) (vaddr + (int) offset);
-	memcpy_toio(to_dp, uaddr, len);
-
-	/* Tell card we have data for it */
-	writew(0, vaddr + (DOWNREQ));
-
-	brd->conc_dl_status = NO_PENDING_CONCENTRATOR_REQUESTS;
-}
-#endif
-
-#define EXPANSION_ROM_SIZE	(64 * 1024)
-#define FEP5_ROM_MAGIC		(0xFEFFFFFF)
-
-static void dgap_get_vpd(struct board_t *brd)
-{
-	u32 magic;
-	u32 base_offset;
-	u16 rom_offset;
-	u16 vpd_offset;
-	u16 image_length;
-	u16 i;
-	u8 byte1;
-	u8 byte2;
-
-	/*
-	 * Poke the magic number at the PCI Rom Address location.
-	 * If VPD is supported, the value read from that address
-	 * will be non-zero.
-	 */
-	magic = FEP5_ROM_MAGIC;
-	pci_write_config_dword(brd->pdev, PCI_ROM_ADDRESS, magic);
-	pci_read_config_dword(brd->pdev, PCI_ROM_ADDRESS, &magic);
-
-	/* VPD not supported, bail */
-	if (!magic)
-		return;
-
-	/*
-	 * To get to the OTPROM memory, we have to send the boards base
-	 * address or'ed with 1 into the PCI Rom Address location.
-	 */
-	magic = brd->membase | 0x01;
-	pci_write_config_dword(brd->pdev, PCI_ROM_ADDRESS, magic);
-	pci_read_config_dword(brd->pdev, PCI_ROM_ADDRESS, &magic);
-
-	byte1 = readb(brd->re_map_membase);
-	byte2 = readb(brd->re_map_membase + 1);
-
-	/*
-	 * If the board correctly swapped to the OTPROM memory,
-	 * the first 2 bytes (header) should be 0x55, 0xAA
-	 */
-	if (byte1 == 0x55 && byte2 == 0xAA) {
-
-		base_offset = 0;
-
-		/*
-		 * We have to run through all the OTPROM memory looking
-		 * for the VPD offset.
-		 */
-		while (base_offset <= EXPANSION_ROM_SIZE) {
-
-			/*
-			 * Lots of magic numbers here.
-			 *
-			 * The VPD offset is located inside the ROM Data
-			 * Structure.
-			 *
-			 * We also have to remember the length of each
-			 * ROM Data Structure, so we can "hop" to the next
-			 * entry if the VPD isn't in the current
-			 * ROM Data Structure.
-			 */
-			rom_offset = readw(brd->re_map_membase +
-						base_offset + 0x18);
-			image_length = readw(brd->re_map_membase +
-						rom_offset + 0x10) * 512;
-			vpd_offset = readw(brd->re_map_membase +
-						rom_offset + 0x08);
-
-			/* Found the VPD entry */
-			if (vpd_offset)
-				break;
-
-			/* We didn't find a VPD entry, go to next ROM entry. */
-			base_offset += image_length;
-
-			byte1 = readb(brd->re_map_membase + base_offset);
-			byte2 = readb(brd->re_map_membase + base_offset + 1);
-
-			/*
-			 * If the new ROM offset doesn't have 0x55, 0xAA
-			 * as its header, we have run out of ROM.
-			 */
-			if (byte1 != 0x55 || byte2 != 0xAA)
-				break;
-		}
-
-		/*
-		 * If we have a VPD offset, then mark the board
-		 * as having a valid VPD, and copy VPDSIZE (512) bytes of
-		 * that VPD to the buffer we have in our board structure.
-		 */
-		if (vpd_offset) {
-			brd->bd_flags |= BD_HAS_VPD;
-			for (i = 0; i < VPDSIZE; i++) {
-				brd->vpd[i] = readb(brd->re_map_membase +
-							vpd_offset + i);
-			}
-		}
-	}
-
-	/*
-	 * We MUST poke the magic number at the PCI Rom Address location again.
-	 * This makes the card report the regular board memory back to us,
-	 * rather than the OTPROM memory.
-	 */
-	magic = FEP5_ROM_MAGIC;
-	pci_write_config_dword(brd->pdev, PCI_ROM_ADDRESS, magic);
-}
-
-
-static ssize_t dgap_driver_version_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%s\n", DG_PART);
-}
-static DRIVER_ATTR(version, S_IRUSR, dgap_driver_version_show, NULL);
-
-
-static ssize_t dgap_driver_boards_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n", dgap_numboards);
-}
-static DRIVER_ATTR(boards, S_IRUSR, dgap_driver_boards_show, NULL);
-
-
-static ssize_t dgap_driver_maxboards_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n", MAXBOARDS);
-}
-static DRIVER_ATTR(maxboards, S_IRUSR, dgap_driver_maxboards_show, NULL);
-
-
-static ssize_t dgap_driver_pollcounter_show(struct device_driver *ddp,
-					    char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%ld\n", dgap_poll_counter);
-}
-static DRIVER_ATTR(pollcounter, S_IRUSR, dgap_driver_pollcounter_show, NULL);
-
-static ssize_t dgap_driver_pollrate_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%dms\n", dgap_poll_tick);
-}
-
-static ssize_t dgap_driver_pollrate_store(struct device_driver *ddp,
-					  const char *buf, size_t count)
-{
-	if (sscanf(buf, "%d\n", &dgap_poll_tick) != 1)
-		return -EINVAL;
-	return count;
-}
-static DRIVER_ATTR(pollrate, (S_IRUSR | S_IWUSR), dgap_driver_pollrate_show,
-		   dgap_driver_pollrate_store);
-
-
-static int dgap_create_driver_sysfiles(struct pci_driver *dgap_driver)
-{
-	int rc = 0;
-	struct device_driver *driverfs = &dgap_driver->driver;
-
-	rc |= driver_create_file(driverfs, &driver_attr_version);
-	rc |= driver_create_file(driverfs, &driver_attr_boards);
-	rc |= driver_create_file(driverfs, &driver_attr_maxboards);
-	rc |= driver_create_file(driverfs, &driver_attr_pollrate);
-	rc |= driver_create_file(driverfs, &driver_attr_pollcounter);
-
-	return rc;
-}
-
-static void dgap_remove_driver_sysfiles(struct pci_driver *dgap_driver)
-{
-	struct device_driver *driverfs = &dgap_driver->driver;
-
-	driver_remove_file(driverfs, &driver_attr_version);
-	driver_remove_file(driverfs, &driver_attr_boards);
-	driver_remove_file(driverfs, &driver_attr_maxboards);
-	driver_remove_file(driverfs, &driver_attr_pollrate);
-	driver_remove_file(driverfs, &driver_attr_pollcounter);
-}
-
-static struct attribute_group dgap_tty_attribute_group = {
-	.name = NULL,
-	.attrs = dgap_sysfs_tty_entries,
-};
-
-static void dgap_create_tty_sysfs(struct un_t *un, struct device *c)
-{
-	int ret;
-
-	ret = sysfs_create_group(&c->kobj, &dgap_tty_attribute_group);
-	if (ret)
-		return;
-
-	dev_set_drvdata(c, un);
-
-}
-
-static void dgap_remove_tty_sysfs(struct device *c)
-{
-	sysfs_remove_group(&c->kobj, &dgap_tty_attribute_group);
-}
-
-/*
- * Create pr and tty device entries
- */
-static int dgap_tty_register_ports(struct board_t *brd)
-{
-	struct channel_t *ch;
-	int i;
-	int ret;
-
-	brd->serial_ports = kcalloc(brd->nasync, sizeof(*brd->serial_ports),
-					GFP_KERNEL);
-	if (!brd->serial_ports)
-		return -ENOMEM;
-
-	brd->printer_ports = kcalloc(brd->nasync, sizeof(*brd->printer_ports),
-					GFP_KERNEL);
-	if (!brd->printer_ports) {
-		ret = -ENOMEM;
-		goto free_serial_ports;
-	}
-
-	for (i = 0; i < brd->nasync; i++) {
-		tty_port_init(&brd->serial_ports[i]);
-		tty_port_init(&brd->printer_ports[i]);
-	}
-
-	ch = brd->channels[0];
-	for (i = 0; i < brd->nasync; i++, ch = brd->channels[i]) {
-
-		struct device *classp;
-
-		classp = tty_port_register_device(&brd->serial_ports[i],
-						  brd->serial_driver,
-						  i, NULL);
-
-		if (IS_ERR(classp)) {
-			ret = PTR_ERR(classp);
-			goto unregister_ttys;
-		}
-
-		dgap_create_tty_sysfs(&ch->ch_tun, classp);
-		ch->ch_tun.un_sysfs = classp;
-
-		classp = tty_port_register_device(&brd->printer_ports[i],
-						  brd->print_driver,
-						  i, NULL);
-
-		if (IS_ERR(classp)) {
-			ret = PTR_ERR(classp);
-			goto unregister_ttys;
-		}
-
-		dgap_create_tty_sysfs(&ch->ch_pun, classp);
-		ch->ch_pun.un_sysfs = classp;
-	}
-	dgap_create_ports_sysfiles(brd);
-
-	return 0;
-
-unregister_ttys:
-	while (i >= 0) {
-		ch = brd->channels[i];
-		if (ch->ch_tun.un_sysfs) {
-			dgap_remove_tty_sysfs(ch->ch_tun.un_sysfs);
-			tty_unregister_device(brd->serial_driver, i);
-		}
-
-		if (ch->ch_pun.un_sysfs) {
-			dgap_remove_tty_sysfs(ch->ch_pun.un_sysfs);
-			tty_unregister_device(brd->print_driver, i);
-		}
-		i--;
-	}
-
-	for (i = 0; i < brd->nasync; i++) {
-		tty_port_destroy(&brd->serial_ports[i]);
-		tty_port_destroy(&brd->printer_ports[i]);
-	}
-
-	kfree(brd->printer_ports);
-	brd->printer_ports = NULL;
-
-free_serial_ports:
-	kfree(brd->serial_ports);
-	brd->serial_ports = NULL;
-
-	return ret;
-}
-
-/*
- * dgap_cleanup_tty()
- *
- * Uninitialize the TTY portion of this driver.  Free all memory and
- * resources.
- */
-static void dgap_cleanup_tty(struct board_t *brd)
-{
-	struct device *dev;
-	unsigned int i;
-
-	for (i = 0; i < brd->nasync; i++) {
-		tty_port_destroy(&brd->serial_ports[i]);
-		dev = brd->channels[i]->ch_tun.un_sysfs;
-		dgap_remove_tty_sysfs(dev);
-		tty_unregister_device(brd->serial_driver, i);
-	}
-	tty_unregister_driver(brd->serial_driver);
-	put_tty_driver(brd->serial_driver);
-	kfree(brd->serial_ports);
-
-	for (i = 0; i < brd->nasync; i++) {
-		tty_port_destroy(&brd->printer_ports[i]);
-		dev = brd->channels[i]->ch_pun.un_sysfs;
-		dgap_remove_tty_sysfs(dev);
-		tty_unregister_device(brd->print_driver, i);
-	}
-	tty_unregister_driver(brd->print_driver);
-	put_tty_driver(brd->print_driver);
-	kfree(brd->printer_ports);
-}
-
-static int dgap_request_irq(struct board_t *brd)
-{
-	int rc;
-
-	if (!brd || brd->magic != DGAP_BOARD_MAGIC)
-		return -ENODEV;
-
-	/*
-	 * Set up our interrupt handler if we are set to do interrupts.
-	 */
-	if (dgap_config_get_useintr(brd) && brd->irq) {
-
-		rc = request_irq(brd->irq, dgap_intr, IRQF_SHARED, "DGAP", brd);
-
-		if (!rc)
-			brd->intr_used = 1;
-	}
-	return 0;
-}
-
-static void dgap_free_irq(struct board_t *brd)
-{
-	if (brd->intr_used && brd->irq)
-		free_irq(brd->irq, brd);
-}
-
-static int dgap_firmware_load(struct pci_dev *pdev, int card_type,
-			      struct board_t *brd)
-{
-	const struct firmware *fw;
-	char *tmp_ptr;
-	int ret;
-	char *dgap_config_buf;
-
-	dgap_get_vpd(brd);
-	dgap_do_reset_board(brd);
-
-	if (fw_info[card_type].conf_name) {
-		ret = request_firmware(&fw, fw_info[card_type].conf_name,
-					 &pdev->dev);
-		if (ret) {
-			dev_err(&pdev->dev, "config file %s not found\n",
-				fw_info[card_type].conf_name);
-			return ret;
-		}
-
-		dgap_config_buf = kzalloc(fw->size + 1, GFP_KERNEL);
-		if (!dgap_config_buf) {
-			release_firmware(fw);
-			return -ENOMEM;
-		}
-
-		memcpy(dgap_config_buf, fw->data, fw->size);
-		release_firmware(fw);
-
-		/*
-		 * preserve dgap_config_buf
-		 * as dgap_parsefile would
-		 * otherwise alter it.
-		 */
-		tmp_ptr = dgap_config_buf;
-
-		if (dgap_parsefile(&tmp_ptr) != 0) {
-			kfree(dgap_config_buf);
-			return -EINVAL;
-		}
-		kfree(dgap_config_buf);
-	}
-
-	/*
-	 * Match this board to a config the user created for us.
-	 */
-	brd->bd_config =
-		dgap_find_config(brd->type, brd->pci_bus, brd->pci_slot);
-
-	/*
-	 * Because the 4 port Xr products share the same PCI ID
-	 * as the 8 port Xr products, if we receive a NULL config
-	 * back, and this is a PAPORT8 board, retry with a
-	 * PAPORT4 attempt as well.
-	 */
-	if (brd->type == PAPORT8 && !brd->bd_config)
-		brd->bd_config =
-			dgap_find_config(PAPORT4, brd->pci_bus, brd->pci_slot);
-
-	if (!brd->bd_config) {
-		dev_err(&pdev->dev, "No valid configuration found\n");
-		return -EINVAL;
-	}
-
-	if (fw_info[card_type].bios_name) {
-		ret = request_firmware(&fw, fw_info[card_type].bios_name,
-					&pdev->dev);
-		if (ret) {
-			dev_err(&pdev->dev, "bios file %s not found\n",
-				fw_info[card_type].bios_name);
-			return ret;
-		}
-		dgap_do_bios_load(brd, fw->data, fw->size);
-		release_firmware(fw);
-
-		/* Wait for BIOS to test board... */
-		ret = dgap_test_bios(brd);
-		if (ret)
-			return ret;
-	}
-
-	if (fw_info[card_type].fep_name) {
-		ret = request_firmware(&fw, fw_info[card_type].fep_name,
-					&pdev->dev);
-		if (ret) {
-			dev_err(&pdev->dev, "dgap: fep file %s not found\n",
-				fw_info[card_type].fep_name);
-			return ret;
-		}
-		dgap_do_fep_load(brd, fw->data, fw->size);
-		release_firmware(fw);
-
-		/* Wait for FEP to load on board... */
-		ret = dgap_test_fep(brd);
-		if (ret)
-			return ret;
-	}
-
-#ifdef DIGI_CONCENTRATORS_SUPPORTED
-	/*
-	 * If this is a CX or EPCX, we need to see if the firmware
-	 * is requesting a concentrator image from us.
-	 */
-	if ((bd->type == PCX) || (bd->type == PEPC)) {
-		chk_addr = (u16 *) (vaddr + DOWNREQ);
-		/* Nonzero if FEP is requesting concentrator image. */
-		check = readw(chk_addr);
-		vaddr = brd->re_map_membase;
-	}
-
-	if (fw_info[card_type].con_name && check && vaddr) {
-		ret = request_firmware(&fw, fw_info[card_type].con_name,
-					&pdev->dev);
-		if (ret) {
-			dev_err(&pdev->dev, "conc file %s not found\n",
-				fw_info[card_type].con_name);
-			return ret;
-		}
-		/* Put concentrator firmware loading code here */
-		offset = readw((u16 *) (vaddr + DOWNREQ));
-		memcpy_toio(offset, fw->data, fw->size);
-
-		dgap_do_conc_load(brd, (char *)fw->data, fw->size)
-		release_firmware(fw);
-	}
-#endif
-
-	return 0;
-}
-
-/*
- * dgap_tty_init()
- *
- * Init the tty subsystem.  Called once per board after board has been
- * downloaded and init'ed.
- */
-static int dgap_tty_init(struct board_t *brd)
-{
-	int i;
-	int tlw;
-	uint true_count;
-	u8 __iomem *vaddr;
-	u8 modem;
-	struct channel_t *ch;
-	struct bs_t __iomem *bs;
-	struct cm_t __iomem *cm;
-	int ret;
-
-	/*
-	 * Initialize board structure elements.
-	 */
-
-	vaddr = brd->re_map_membase;
-	true_count = readw((vaddr + NCHAN));
-
-	brd->nasync = dgap_config_get_num_prts(brd);
-
-	if (!brd->nasync)
-		brd->nasync = brd->maxports;
-
-	if (brd->nasync > brd->maxports)
-		brd->nasync = brd->maxports;
-
-	if (true_count != brd->nasync) {
-		dev_warn(&brd->pdev->dev,
-			 "%s configured for %d ports, has %d ports.\n",
-			 brd->name, brd->nasync, true_count);
-
-		if ((brd->type == PPCM) &&
-		    (true_count == 64 || true_count == 0)) {
-			dev_warn(&brd->pdev->dev,
-				 "Please make SURE the EBI cable running from the card\n");
-			dev_warn(&brd->pdev->dev,
-				 "to each EM module is plugged into EBI IN!\n");
-		}
-
-		brd->nasync = true_count;
-
-		/* If no ports, don't bother going any further */
-		if (!brd->nasync) {
-			brd->state = BOARD_FAILED;
-			brd->dpastatus = BD_NOFEP;
-			return -EIO;
-		}
-	}
-
-	/*
-	 * Allocate channel memory that might not have been allocated
-	 * when the driver was first loaded.
-	 */
-	for (i = 0; i < brd->nasync; i++) {
-		brd->channels[i] =
-			kzalloc(sizeof(struct channel_t), GFP_KERNEL);
-		if (!brd->channels[i]) {
-			ret = -ENOMEM;
-			goto free_chan;
-		}
-	}
-
-	ch = brd->channels[0];
-	vaddr = brd->re_map_membase;
-
-	bs = (struct bs_t __iomem *) ((ulong) vaddr + CHANBUF);
-	cm = (struct cm_t __iomem *) ((ulong) vaddr + CMDBUF);
-
-	brd->bd_bs = bs;
-
-	/* Set up channel variables */
-	for (i = 0; i < brd->nasync; i++, ch = brd->channels[i], bs++) {
-
-		spin_lock_init(&ch->ch_lock);
-
-		/* Store all our magic numbers */
-		ch->magic = DGAP_CHANNEL_MAGIC;
-		ch->ch_tun.magic = DGAP_UNIT_MAGIC;
-		ch->ch_tun.un_type = DGAP_SERIAL;
-		ch->ch_tun.un_ch = ch;
-		ch->ch_tun.un_dev = i;
-
-		ch->ch_pun.magic = DGAP_UNIT_MAGIC;
-		ch->ch_pun.un_type = DGAP_PRINT;
-		ch->ch_pun.un_ch = ch;
-		ch->ch_pun.un_dev = i;
-
-		ch->ch_vaddr = vaddr;
-		ch->ch_bs = bs;
-		ch->ch_cm = cm;
-		ch->ch_bd = brd;
-		ch->ch_portnum = i;
-		ch->ch_digi = dgap_digi_init;
-
-		/*
-		 * Set up digi dsr and dcd bits based on altpin flag.
-		 */
-		if (dgap_config_get_altpin(brd)) {
-			ch->ch_dsr	= DM_CD;
-			ch->ch_cd	= DM_DSR;
-			ch->ch_digi.digi_flags |= DIGI_ALTPIN;
-		} else {
-			ch->ch_cd	= DM_CD;
-			ch->ch_dsr	= DM_DSR;
-		}
-
-		ch->ch_taddr = vaddr + (ioread16(&(ch->ch_bs->tx_seg)) << 4);
-		ch->ch_raddr = vaddr + (ioread16(&(ch->ch_bs->rx_seg)) << 4);
-		ch->ch_tx_win = 0;
-		ch->ch_rx_win = 0;
-		ch->ch_tsize = readw(&(ch->ch_bs->tx_max)) + 1;
-		ch->ch_rsize = readw(&(ch->ch_bs->rx_max)) + 1;
-		ch->ch_tstart = 0;
-		ch->ch_rstart = 0;
-
-		/*
-		 * Set queue water marks, interrupt mask,
-		 * and general tty parameters.
-		 */
-		tlw = ch->ch_tsize >= 2000 ? ((ch->ch_tsize * 5) / 8) :
-						ch->ch_tsize / 2;
-		ch->ch_tlw = tlw;
-
-		dgap_cmdw(ch, STLOW, tlw, 0);
-
-		dgap_cmdw(ch, SRLOW, ch->ch_rsize / 2, 0);
-
-		dgap_cmdw(ch, SRHIGH, 7 * ch->ch_rsize / 8, 0);
-
-		ch->ch_mistat = readb(&(ch->ch_bs->m_stat));
-
-		init_waitqueue_head(&ch->ch_flags_wait);
-		init_waitqueue_head(&ch->ch_tun.un_flags_wait);
-		init_waitqueue_head(&ch->ch_pun.un_flags_wait);
-
-		/* Turn on all modem interrupts for now */
-		modem = (DM_CD | DM_DSR | DM_CTS | DM_RI);
-		writeb(modem, &(ch->ch_bs->m_int));
-
-		/*
-		 * Set edelay to 0 if interrupts are turned on,
-		 * otherwise set edelay to the usual 100.
-		 */
-		if (brd->intr_used)
-			writew(0, &(ch->ch_bs->edelay));
-		else
-			writew(100, &(ch->ch_bs->edelay));
-
-		writeb(1, &(ch->ch_bs->idata));
-	}
-
-	return 0;
-
-free_chan:
-	while (--i >= 0) {
-		kfree(brd->channels[i]);
-		brd->channels[i] = NULL;
-	}
-	return ret;
-}
-
-/*
- * dgap_tty_free()
- *
- * Free the channles which are allocated in dgap_tty_init().
- */
-static void dgap_tty_free(struct board_t *brd)
-{
-	int i;
-
-	for (i = 0; i < brd->nasync; i++)
-		kfree(brd->channels[i]);
-}
-
-static int dgap_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	int rc;
-	struct board_t *brd;
-
-	if (dgap_numboards >= MAXBOARDS)
-		return -EPERM;
-
-	rc = pci_enable_device(pdev);
-	if (rc)
-		return -EIO;
-
-	brd = dgap_found_board(pdev, ent->driver_data, dgap_numboards);
-	if (IS_ERR(brd))
-		return PTR_ERR(brd);
-
-	rc = dgap_firmware_load(pdev, ent->driver_data, brd);
-	if (rc)
-		goto cleanup_brd;
-
-	rc = dgap_alloc_flipbuf(brd);
-	if (rc)
-		goto cleanup_brd;
-
-	rc = dgap_tty_register(brd);
-	if (rc)
-		goto free_flipbuf;
-
-	rc = dgap_request_irq(brd);
-	if (rc)
-		goto unregister_tty;
-
-	/*
-	 * Do tty device initialization.
-	 */
-	rc = dgap_tty_init(brd);
-	if (rc < 0)
-		goto free_irq;
-
-	rc = dgap_tty_register_ports(brd);
-	if (rc)
-		goto tty_free;
-
-	brd->state = BOARD_READY;
-	brd->dpastatus = BD_RUNNING;
-
-	dgap_board[dgap_numboards++] = brd;
-
-	return 0;
-
-tty_free:
-	dgap_tty_free(brd);
-free_irq:
-	dgap_free_irq(brd);
-unregister_tty:
-	dgap_tty_unregister(brd);
-free_flipbuf:
-	dgap_free_flipbuf(brd);
-cleanup_brd:
-	dgap_cleanup_nodes();
-	dgap_unmap(brd);
-	kfree(brd);
-
-	return rc;
-}
-
-/*
- * dgap_cleanup_board()
- *
- * Free all the memory associated with a board
- */
-static void dgap_cleanup_board(struct board_t *brd)
-{
-	unsigned int i;
-
-	if (!brd || brd->magic != DGAP_BOARD_MAGIC)
-		return;
-
-	dgap_free_irq(brd);
-
-	tasklet_kill(&brd->helper_tasklet);
-
-	dgap_unmap(brd);
-
-	/* Free all allocated channels structs */
-	for (i = 0; i < MAXPORTS ; i++)
-		kfree(brd->channels[i]);
-
-	kfree(brd->flipbuf);
-	kfree(brd->flipflagbuf);
-
-	dgap_board[brd->boardnum] = NULL;
-
-	kfree(brd);
-}
-
-static void dgap_stop(bool removesys, struct pci_driver *drv)
-{
-	unsigned long lock_flags;
-
-	spin_lock_irqsave(&dgap_poll_lock, lock_flags);
-	dgap_poll_stop = 1;
-	spin_unlock_irqrestore(&dgap_poll_lock, lock_flags);
-
-	del_timer_sync(&dgap_poll_timer);
-	if (removesys)
-		dgap_remove_driver_sysfiles(drv);
-
-	device_destroy(dgap_class, MKDEV(DIGI_DGAP_MAJOR, 0));
-	class_destroy(dgap_class);
-	unregister_chrdev(DIGI_DGAP_MAJOR, "dgap");
-}
-
-static void dgap_remove_one(struct pci_dev *dev)
-{
-	unsigned int i;
-	struct pci_driver *drv = to_pci_driver(dev->dev.driver);
-
-	dgap_stop(true, drv);
-	for (i = 0; i < dgap_numboards; ++i) {
-		dgap_remove_ports_sysfiles(dgap_board[i]);
-		dgap_cleanup_tty(dgap_board[i]);
-		dgap_cleanup_board(dgap_board[i]);
-	}
-
-	dgap_cleanup_nodes();
-}
-
-static struct pci_driver dgap_driver = {
-	.name		= "dgap",
-	.probe		= dgap_init_one,
-	.id_table	= dgap_pci_tbl,
-	.remove		= dgap_remove_one,
-};
-
-/*
- * Start of driver.
- */
-static int dgap_start(void)
-{
-	int rc;
-	unsigned long flags;
-	struct device *device;
-
-	dgap_numboards = 0;
-
-	pr_info("For the tools package please visit http://www.digi.com\n");
-
-	/*
-	 * Register our base character device into the kernel.
-	 */
-
-	/*
-	 * Register management/dpa devices
-	 */
-	rc = register_chrdev(DIGI_DGAP_MAJOR, "dgap", &dgap_board_fops);
-	if (rc < 0)
-		return rc;
-
-	dgap_class = class_create(THIS_MODULE, "dgap_mgmt");
-	if (IS_ERR(dgap_class)) {
-		rc = PTR_ERR(dgap_class);
-		goto failed_class;
-	}
-
-	device = device_create(dgap_class, NULL,
-		MKDEV(DIGI_DGAP_MAJOR, 0),
-		NULL, "dgap_mgmt");
-	if (IS_ERR(device)) {
-		rc = PTR_ERR(device);
-		goto failed_device;
-	}
-
-	/* Start the poller */
-	spin_lock_irqsave(&dgap_poll_lock, flags);
-	setup_timer(&dgap_poll_timer, dgap_poll_handler, 0);
-	dgap_poll_timer.data = 0;
-	dgap_poll_time = jiffies + dgap_jiffies_from_ms(dgap_poll_tick);
-	dgap_poll_timer.expires = dgap_poll_time;
-	spin_unlock_irqrestore(&dgap_poll_lock, flags);
-
-	add_timer(&dgap_poll_timer);
-
-	return rc;
-
-failed_device:
-	class_destroy(dgap_class);
-failed_class:
-	unregister_chrdev(DIGI_DGAP_MAJOR, "dgap");
-	return rc;
-}
-
-/************************************************************************
- *
- * Driver load/unload functions
- *
- ************************************************************************/
-
-/*
- * init_module()
- *
- * Module load.  This is where it all starts.
- */
-static int dgap_init_module(void)
-{
-	int rc;
-
-	pr_info("%s, Digi International Part Number %s\n", DG_NAME, DG_PART);
-
-	rc = dgap_start();
-	if (rc)
-		return rc;
-
-	rc = pci_register_driver(&dgap_driver);
-	if (rc) {
-		dgap_stop(false, NULL);
-		return rc;
-	}
-
-	rc = dgap_create_driver_sysfiles(&dgap_driver);
-	if (rc)
-		goto err_unregister;
-
-	dgap_driver_state = DRIVER_READY;
-
-	return 0;
-
-err_unregister:
-	pci_unregister_driver(&dgap_driver);
-	return rc;
-}
-
-/*
- * dgap_cleanup_module()
- *
- * Module unload.  This is where it all ends.
- */
-static void dgap_cleanup_module(void)
-{
-	if (dgap_numboards)
-		pci_unregister_driver(&dgap_driver);
-}
-
-module_init(dgap_init_module);
-module_exit(dgap_cleanup_module);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Digi International, http://www.digi.com");
-MODULE_DESCRIPTION("Driver for the Digi International EPCA PCI based product line");
-MODULE_SUPPORTED_DEVICE("dgap");
diff --git a/drivers/staging/dgap/dgap.h b/drivers/staging/dgap/dgap.h
deleted file mode 100644
index e707ed5fe949..000000000000
--- a/drivers/staging/dgap/dgap.h
+++ /dev/null
@@ -1,1233 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *      Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	NOTE: THIS IS A SHARED HEADER. DO NOT CHANGE CODING STYLE!!!
- *
- *************************************************************************
- *
- * Driver includes
- *
- *************************************************************************/
-
-#ifndef __DGAP_DRIVER_H
-#define __DGAP_DRIVER_H
-
-#include <linux/types.h>        /* To pick up the varions Linux types */
-#include <linux/tty.h>          /* To pick up the various tty structs/defines */
-#include <linux/interrupt.h>    /* For irqreturn_t type */
-
-#ifndef TRUE
-# define TRUE 1
-#endif
-
-#ifndef FALSE
-# define FALSE 0
-#endif
-
-#if !defined(TTY_FLIPBUF_SIZE)
-# define TTY_FLIPBUF_SIZE 512
-#endif
-
-/*************************************************************************
- *
- * Driver defines
- *
- *************************************************************************/
-
-/*
- * Driver identification
- */
-#define	DG_NAME		"dgap-1.3-16"
-#define	DG_PART		"40002347_C"
-#define	DRVSTR		"dgap"
-
-/*
- * defines from dgap_pci.h
- */
-#define PCIMAX 32			/* maximum number of PCI boards */
-
-#define DIGI_VID		0x114F
-
-#define PCI_DEV_EPC_DID		0x0002
-#define PCI_DEV_XEM_DID		0x0004
-#define PCI_DEV_XR_DID		0x0005
-#define PCI_DEV_CX_DID		0x0006
-#define PCI_DEV_XRJ_DID		0x0009	/* PLX-based Xr adapter */
-#define PCI_DEV_XR_IBM_DID	0x0011	/* IBM 8-port Async Adapter */
-#define PCI_DEV_XR_BULL_DID	0x0013	/* BULL 8-port Async Adapter */
-#define PCI_DEV_XR_SAIP_DID	0x001c	/* SAIP card - Xr adapter */
-#define PCI_DEV_XR_422_DID	0x0012	/* Xr-422 */
-#define PCI_DEV_920_2_DID	0x0034	/* XR-Plus 920 K, 2 port */
-#define PCI_DEV_920_4_DID	0x0026	/* XR-Plus 920 K, 4 port */
-#define PCI_DEV_920_8_DID	0x0027	/* XR-Plus 920 K, 8 port */
-#define PCI_DEV_EPCJ_DID	0x000a	/* PLX 9060 chip for PCI  */
-#define PCI_DEV_CX_IBM_DID	0x001b	/* IBM 128-port Async Adapter */
-#define PCI_DEV_920_8_HP_DID	0x0058	/* HP XR-Plus 920 K, 8 port */
-#define PCI_DEV_XEM_HP_DID	0x0059  /* HP Xem PCI */
-
-#define PCI_DEV_XEM_NAME	"AccelePort XEM"
-#define PCI_DEV_CX_NAME		"AccelePort CX"
-#define PCI_DEV_XR_NAME		"AccelePort Xr"
-#define PCI_DEV_XRJ_NAME	"AccelePort Xr (PLX)"
-#define PCI_DEV_XR_SAIP_NAME	"AccelePort Xr (SAIP)"
-#define PCI_DEV_920_2_NAME	"AccelePort Xr920 2 port"
-#define PCI_DEV_920_4_NAME	"AccelePort Xr920 4 port"
-#define PCI_DEV_920_8_NAME	"AccelePort Xr920 8 port"
-#define PCI_DEV_XR_422_NAME	"AccelePort Xr 422"
-#define PCI_DEV_EPCJ_NAME	"AccelePort EPC (PLX)"
-#define PCI_DEV_XR_BULL_NAME	"AccelePort Xr (BULL)"
-#define PCI_DEV_XR_IBM_NAME	"AccelePort Xr (IBM)"
-#define PCI_DEV_CX_IBM_NAME	"AccelePort CX (IBM)"
-#define PCI_DEV_920_8_HP_NAME	"AccelePort Xr920 8 port (HP)"
-#define PCI_DEV_XEM_HP_NAME	"AccelePort XEM (HP)"
-
-/*
- * On the PCI boards, there is no IO space allocated
- * The I/O registers will be in the first 3 bytes of the
- * upper 2MB of the 4MB memory space.  The board memory
- * will be mapped into the low 2MB of the 4MB memory space
- */
-
-/* Potential location of PCI Bios from E0000 to FFFFF*/
-#define PCI_BIOS_SIZE		0x00020000
-
-/* Size of Memory and I/O for PCI (4MB) */
-#define PCI_RAM_SIZE		0x00400000
-
-/* Size of Memory (2MB) */
-#define PCI_MEM_SIZE		0x00200000
-
-/* Max PCI Window Size (2MB) */
-#define PCI_WIN_SIZE		0x00200000
-
-#define PCI_WIN_SHIFT		21 /* 21 bits max */
-
-/* Offset of I/0 in Memory (2MB) */
-#define PCI_IO_OFFSET		0x00200000
-
-/* Size of IO (2MB) */
-#define PCI_IO_SIZE_DGAP	0x00200000
-
-/* Number of boards we support at once. */
-#define	MAXBOARDS	32
-#define	MAXPORTS	224
-#define MAXTTYNAMELEN	200
-
-/* Our 3 magic numbers for our board, channel and unit structs */
-#define DGAP_BOARD_MAGIC	0x5c6df104
-#define DGAP_CHANNEL_MAGIC	0x6c6df104
-#define DGAP_UNIT_MAGIC		0x7c6df104
-
-/* Serial port types */
-#define DGAP_SERIAL		0
-#define DGAP_PRINT		1
-
-#define	SERIAL_TYPE_NORMAL	1
-
-/* 4 extra for alignment play space */
-#define WRITEBUFLEN		((4096) + 4)
-#define MYFLIPLEN		N_TTY_BUF_SIZE
-
-#define SBREAK_TIME 0x25
-#define U2BSIZE 0x400
-
-#define dgap_jiffies_from_ms(a) (((a) * HZ) / 1000)
-
-/*
- * Our major for the mgmt devices.
- *
- * We can use 22, because Digi was allocated 22 and 23 for the epca driver.
- * 22 has now become obsolete now that the "cu" devices have
- * been removed from 2.6.
- * Also, this *IS* the epca driver, just PCI only now.
- */
-#ifndef DIGI_DGAP_MAJOR
-# define DIGI_DGAP_MAJOR         22
-#endif
-
-/*
- * The parameters we use to define the periods of the moving averages.
- */
-#define		MA_PERIOD	(HZ / 10)
-#define		SMA_DUR		(1 * HZ)
-#define		EMA_DUR		(1 * HZ)
-#define		SMA_NPERIODS	(SMA_DUR / MA_PERIOD)
-#define		EMA_NPERIODS	(EMA_DUR / MA_PERIOD)
-
-/*
- * Define a local default termios struct. All ports will be created
- * with this termios initially.  This is the same structure that is defined
- * as the default in tty_io.c with the same settings overridden as in serial.c
- *
- * In short, this should match the internal serial ports' defaults.
- */
-#define	DEFAULT_IFLAGS	(ICRNL | IXON)
-#define	DEFAULT_OFLAGS	(OPOST | ONLCR)
-#define	DEFAULT_CFLAGS	(B9600 | CS8 | CREAD | HUPCL | CLOCAL)
-#define	DEFAULT_LFLAGS	(ISIG | ICANON | ECHO | ECHOE | ECHOK | \
-			ECHOCTL | ECHOKE | IEXTEN)
-
-#ifndef _POSIX_VDISABLE
-#define _POSIX_VDISABLE ('\0')
-#endif
-
-#define SNIFF_MAX	65536		/* Sniff buffer size (2^n) */
-#define SNIFF_MASK	(SNIFF_MAX - 1)	/* Sniff wrap mask */
-
-#define VPDSIZE (512)
-
-/************************************************************************
- *      FEP memory offsets
- ************************************************************************/
-#define START           0x0004L         /* Execution start address      */
-
-#define CMDBUF          0x0d10L         /* Command (cm_t) structure offset */
-#define CMDSTART        0x0400L         /* Start of command buffer      */
-#define CMDMAX          0x0800L         /* End of command buffer        */
-
-#define EVBUF           0x0d18L         /* Event (ev_t) structure       */
-#define EVSTART         0x0800L         /* Start of event buffer        */
-#define EVMAX           0x0c00L         /* End of event buffer          */
-#define FEP5_PLUS       0x0E40          /* ASCII '5' and ASCII 'A' is here  */
-#define ECS_SEG         0x0E44          /* Segment of the extended      */
-					/* channel structure            */
-#define LINE_SPEED      0x10            /* Offset into ECS_SEG for line */
-					/* speed if the fep has extended */
-					/* capabilities                 */
-
-/* BIOS MAGIC SPOTS */
-#define ERROR           0x0C14L		/* BIOS error code              */
-#define SEQUENCE	0x0C12L		/* BIOS sequence indicator      */
-#define POSTAREA	0x0C00L		/* POST complete message area   */
-
-/* FEP MAGIC SPOTS */
-#define FEPSTAT         POSTAREA        /* OS here when FEP comes up    */
-#define NCHAN           0x0C02L         /* number of ports FEP sees     */
-#define PANIC           0x0C10L         /* PANIC area for FEP           */
-#define KMEMEM          0x0C30L         /* Memory for KME use           */
-#define CONFIG          0x0CD0L         /* Concentrator configuration info */
-#define CONFIGSIZE      0x0030          /* configuration info size      */
-#define DOWNREQ         0x0D00          /* Download request buffer pointer */
-
-#define CHANBUF         0x1000L         /* Async channel (bs_t) structs */
-#define FEPOSSIZE       0x1FFF          /* 8K FEPOS                     */
-
-#define XEMPORTS    0xC02	/*
-				 * Offset in board memory where FEP5 stores
-				 * how many ports it has detected.
-				 * NOTE: FEP5 reports 64 ports when the user
-				 * has the cable in EBI OUT instead of EBI IN.
-				 */
-
-#define FEPCLR      0x00
-#define FEPMEM      0x02
-#define FEPRST      0x04
-#define FEPINT      0x08
-#define FEPMASK     0x0e
-#define FEPWIN      0x80
-
-#define LOWMEM      0x0100
-#define HIGHMEM     0x7f00
-
-#define FEPTIMEOUT 200000
-
-#define ENABLE_INTR	0x0e04		/* Enable interrupts flag */
-#define FEPPOLL_MIN	1		/* minimum of 1 millisecond */
-#define FEPPOLL_MAX	20		/* maximum of 20 milliseconds */
-#define FEPPOLL		0x0c26		/* Fep event poll interval */
-
-#define	IALTPIN		0x0080		/* Input flag to swap DSR <-> DCD */
-
-/************************************************************************
- * FEP supported functions
- ************************************************************************/
-#define SRLOW		0xe0		/* Set receive low water	*/
-#define SRHIGH		0xe1		/* Set receive high water	*/
-#define FLUSHTX		0xe2		/* Flush transmit buffer	*/
-#define PAUSETX		0xe3		/* Pause data transmission	*/
-#define RESUMETX	0xe4		/* Resume data transmission	*/
-#define SMINT		0xe5		/* Set Modem Interrupt		*/
-#define SAFLOWC		0xe6		/* Set Aux. flow control chars	*/
-#define SBREAK		0xe8		/* Send break			*/
-#define SMODEM		0xe9		/* Set 8530 modem control lines	*/
-#define SIFLAG		0xea		/* Set UNIX iflags		*/
-#define SFLOWC		0xeb		/* Set flow control characters	*/
-#define STLOW		0xec		/* Set transmit low water mark	*/
-#define RPAUSE		0xee		/* Pause receive		*/
-#define RRESUME		0xef		/* Resume receive		*/
-#define CHRESET		0xf0		/* Reset Channel		*/
-#define BUFSETALL	0xf2		/* Set Tx & Rx buffer size avail*/
-#define SOFLAG		0xf3		/* Set UNIX oflags		*/
-#define SHFLOW		0xf4		/* Set hardware handshake	*/
-#define SCFLAG		0xf5		/* Set UNIX cflags		*/
-#define SVNEXT		0xf6		/* Set VNEXT character		*/
-#define SPINTFC		0xfc		/* Reserved			*/
-#define SCOMMODE	0xfd		/* Set RS232/422 mode		*/
-
-/************************************************************************
- *	Modes for SCOMMODE
- ************************************************************************/
-#define MODE_232	0x00
-#define MODE_422	0x01
-
-/************************************************************************
- *      Event flags.
- ************************************************************************/
-#define IFBREAK         0x01            /* Break received               */
-#define IFTLW           0x02            /* Transmit low water           */
-#define IFTEM           0x04            /* Transmitter empty            */
-#define IFDATA          0x08            /* Receive data present         */
-#define IFMODEM         0x20            /* Modem status change          */
-
-/************************************************************************
- *      Modem flags
- ************************************************************************/
-#       define  DM_RTS          0x02    /* Request to send              */
-#       define  DM_CD           0x80    /* Carrier detect               */
-#       define  DM_DSR          0x20    /* Data set ready               */
-#       define  DM_CTS          0x10    /* Clear to send                */
-#       define  DM_RI           0x40    /* Ring indicator               */
-#       define  DM_DTR          0x01    /* Data terminal ready          */
-
-/*
- * defines from dgap_conf.h
- */
-#define NULLNODE 0		/* header node, not used */
-#define BNODE 1			/* Board node */
-#define LNODE 2			/* Line node */
-#define CNODE 3			/* Concentrator node */
-#define MNODE 4			/* EBI Module node */
-#define TNODE 5			/* tty name prefix node */
-#define	CUNODE 6		/* cu name prefix (non-SCO) */
-#define PNODE 7			/* trans. print prefix node */
-#define JNODE 8			/* maJor number node */
-#define ANODE 9			/* altpin */
-#define	TSNODE 10		/* tty structure size */
-#define CSNODE 11		/* channel structure size */
-#define BSNODE 12		/* board structure size */
-#define USNODE 13		/* unit schedule structure size */
-#define FSNODE 14		/* f2200 structure size */
-#define VSNODE 15		/* size of VPIX structures */
-#define INTRNODE 16		/* enable interrupt */
-
-/* Enumeration of tokens */
-#define	BEGIN	1
-#define	END	2
-#define	BOARD	10
-
-#define EPCFS	11 /* start of EPC family definitions */
-#define	ICX		11
-#define	MCX		13
-#define PCX	14
-#define	IEPC	15
-#define	EEPC	16
-#define	MEPC	17
-#define	IPCM	18
-#define	EPCM	19
-#define	MPCM	20
-#define PEPC	21
-#define PPCM	22
-#ifdef CP
-#define ICP     23
-#define ECP     24
-#define MCP     25
-#endif
-#define EPCFE	25 /* end of EPC family definitions */
-#define	PC2E	26
-#define	PC4E	27
-#define	PC4E8K	28
-#define	PC8E	29
-#define	PC8E8K	30
-#define	PC16E	31
-#define MC2E8K  34
-#define MC4E8K  35
-#define MC8E8K  36
-
-#define AVANFS	42	/* start of Avanstar family definitions */
-#define A8P	42
-#define A16P	43
-#define AVANFE	43	/* end of Avanstar family definitions */
-
-#define DA2000FS	44 /* start of AccelePort 2000 family definitions */
-#define DA22		44 /* AccelePort 2002 */
-#define DA24		45 /* AccelePort 2004 */
-#define DA28		46 /* AccelePort 2008 */
-#define DA216		47 /* AccelePort 2016 */
-#define DAR4		48 /* AccelePort RAS 4 port */
-#define DAR8		49 /* AccelePort RAS 8 port */
-#define DDR24		50 /* DataFire RAS 24 port */
-#define DDR30		51 /* DataFire RAS 30 port */
-#define DDR48		52 /* DataFire RAS 48 port */
-#define DDR60		53 /* DataFire RAS 60 port */
-#define DA2000FE	53 /* end of AccelePort 2000/RAS family definitions */
-
-#define PCXRFS	106	/* start of PCXR family definitions */
-#define	APORT4	106
-#define	APORT8	107
-#define PAPORT4 108
-#define PAPORT8 109
-#define APORT4_920I	110
-#define APORT8_920I	111
-#define APORT4_920P	112
-#define APORT8_920P	113
-#define APORT2_920P 114
-#define PCXRFE	117	/* end of PCXR family definitions */
-
-#define	LINE	82
-#ifdef T1
-#define T1M	83
-#define E1M	84
-#endif
-#define	CONC	64
-#define	CX	65
-#define	EPC	66
-#define	MOD	67
-#define	PORTS	68
-#define METHOD	69
-#define CUSTOM	70
-#define BASIC	71
-#define STATUS	72
-#define MODEM	73
-/* The following tokens can appear in multiple places */
-#define	SPEED	74
-#define	NPORTS	75
-#define	ID	76
-#define CABLE	77
-#define CONNECT	78
-#define	IO	79
-#define	MEM	80
-#define DPSZ	81
-
-#define	TTYN	90
-#define	CU	91
-#define	PRINT	92
-#define	XPRINT	93
-#define CMAJOR   94
-#define ALTPIN  95
-#define STARTO 96
-#define USEINTR  97
-#define PCIINFO  98
-
-#define	TTSIZ	100
-#define	CHSIZ	101
-#define BSSIZ	102
-#define	UNTSIZ	103
-#define	F2SIZ	104
-#define	VPSIZ	105
-
-#define	TOTAL_BOARD	2
-#define	CURRENT_BRD	4
-#define	BOARD_TYPE	6
-#define	IO_ADDRESS	8
-#define	MEM_ADDRESS	10
-
-#define	FIELDS_PER_PAGE	18
-
-#define TB_FIELD	1
-#define CB_FIELD	3
-#define BT_FIELD	5
-#define IO_FIELD	7
-#define ID_FIELD	8
-#define ME_FIELD	9
-#define TTY_FIELD	11
-#define CU_FIELD	13
-#define PR_FIELD	15
-#define MPR_FIELD	17
-
-#define	MAX_FIELD	512
-
-#define	INIT		0
-#define	NITEMS		128
-#define MAX_ITEM	512
-
-#define	DSCRINST	1
-#define	DSCRNUM		3
-#define	ALTPINQ		5
-#define	SSAVE		7
-
-#define	DSCR		"32"
-#define	ONETONINE	"123456789"
-#define	ALL		"1234567890"
-
-/*
- * All the possible states the driver can be while being loaded.
- */
-enum {
-	DRIVER_INITIALIZED = 0,
-	DRIVER_READY
-};
-
-/*
- * All the possible states the board can be while booting up.
- */
-enum {
-	BOARD_FAILED = 0,
-	BOARD_READY
-};
-
-/*
- * All the possible states that a requested concentrator image can be in.
- */
-enum {
-	NO_PENDING_CONCENTRATOR_REQUESTS = 0,
-	NEED_CONCENTRATOR,
-	REQUESTED_CONCENTRATOR
-};
-
-/*
- * Modem line constants are defined as macros because DSR and
- * DCD are swapable using the ditty altpin option.
- */
-#define D_CD(ch)        ch->ch_cd       /* Carrier detect       */
-#define D_DSR(ch)       ch->ch_dsr      /* Data set ready       */
-#define D_RTS(ch)       DM_RTS          /* Request to send      */
-#define D_CTS(ch)       DM_CTS          /* Clear to send        */
-#define D_RI(ch)        DM_RI           /* Ring indicator       */
-#define D_DTR(ch)       DM_DTR          /* Data terminal ready  */
-
-/*************************************************************************
- *
- * Structures and closely related defines.
- *
- *************************************************************************/
-
-/*
- * A structure to hold a statistics counter.  We also
- * compute moving averages for this counter.
- */
-struct macounter {
-	u32		cnt;	/* Total count */
-	ulong		accum;	/* Acuumulator per period */
-	ulong		sma;	/* Simple moving average */
-	ulong		ema;	/* Exponential moving average */
-};
-
-/************************************************************************
- * Device flag definitions for bd_flags.
- ************************************************************************/
-#define	BD_FEP5PLUS	0x0001          /* Supports FEP5 Plus commands */
-#define BD_HAS_VPD	0x0002		/* Board has VPD info available */
-
-/*
- *	Per-board information
- */
-struct board_t {
-	int		magic;		/* Board Magic number.  */
-	int		boardnum;	/* Board number: 0-3 */
-
-	int		type;		/* Type of board */
-	char		*name;		/* Product Name */
-	struct pci_dev	*pdev;		/* Pointer to the pci_dev struct */
-	u16		vendor;		/* PCI vendor ID */
-	u16		device;		/* PCI device ID */
-	u16		subvendor;	/* PCI subsystem vendor ID */
-	u16		subdevice;	/* PCI subsystem device ID */
-	u8		rev;		/* PCI revision ID */
-	uint		pci_bus;	/* PCI bus value */
-	uint		pci_slot;	/* PCI slot value */
-	u16		maxports;	/* MAX ports this board can handle */
-	u8		vpd[VPDSIZE];	/* VPD of board, if found */
-	u32		bd_flags;	/* Board flags */
-
-	spinlock_t	bd_lock;	/* Used to protect board */
-
-	u32		state;		/* State of card. */
-	wait_queue_head_t state_wait;	/* Place to sleep on for state change */
-
-	struct		tasklet_struct helper_tasklet; /* Poll helper tasklet */
-
-	u32		wait_for_bios;
-	u32		wait_for_fep;
-
-	struct cnode    *bd_config;	/* Config of board */
-
-	u16		nasync;		/* Number of ports on card */
-
-	ulong		irq;		/* Interrupt request number */
-	ulong		intr_count;	/* Count of interrupts */
-	u32		intr_used;	/* Non-zero if using interrupts */
-	u32		intr_running;	/* Non-zero if FEP knows its doing */
-					/* interrupts */
-
-	ulong		port;		/* Start of base io port of the card */
-	ulong		port_end;	/* End of base io port of the card */
-	ulong		membase;	/* Start of base memory of the card */
-	ulong		membase_end;	/* End of base memory of the card */
-
-	u8 __iomem	*re_map_port;	/* Remapped io port of the card */
-	u8 __iomem	*re_map_membase;/* Remapped memory of the card */
-
-	u8		inhibit_poller; /* Tells the poller to leave us alone */
-
-	struct channel_t *channels[MAXPORTS]; /* array of pointers to our */
-					      /* channels.                */
-
-	struct tty_driver	*serial_driver;
-	struct tty_port *serial_ports;
-	char		serial_name[200];
-	struct tty_driver	*print_driver;
-	struct tty_port *printer_ports;
-	char		print_name[200];
-
-	struct bs_t __iomem *bd_bs;	/* Base structure pointer         */
-
-	char	*flipbuf;		/* Our flip buffer, alloced if    */
-					/* board is found                 */
-	char	*flipflagbuf;		/* Our flip flag buffer, alloced  */
-					/* if board is found              */
-
-	u16		dpatype;	/* The board "type", as defined   */
-					/* by DPA                         */
-	u16		dpastatus;	/* The board "status", as defined */
-					/* by DPA                         */
-
-	u32		conc_dl_status;	/* Status of any pending conc     */
-					/* download                       */
-};
-
-/************************************************************************
- * Unit flag definitions for un_flags.
- ************************************************************************/
-#define UN_ISOPEN	0x0001		/* Device is open		*/
-#define UN_CLOSING	0x0002		/* Line is being closed		*/
-#define UN_IMM		0x0004		/* Service immediately		*/
-#define UN_BUSY		0x0008		/* Some work this channel	*/
-#define UN_BREAKI	0x0010		/* Input break received		*/
-#define UN_PWAIT	0x0020		/* Printer waiting for terminal	*/
-#define UN_TIME		0x0040		/* Waiting on time		*/
-#define UN_EMPTY	0x0080		/* Waiting output queue empty	*/
-#define UN_LOW		0x0100		/* Waiting output low water mark*/
-#define UN_EXCL_OPEN	0x0200		/* Open for exclusive use	*/
-#define UN_WOPEN	0x0400		/* Device waiting for open	*/
-#define UN_WIOCTL	0x0800		/* Device waiting for open	*/
-#define UN_HANGUP	0x8000		/* Carrier lost			*/
-
-struct device;
-
-/************************************************************************
- * Structure for terminal or printer unit.
- ************************************************************************/
-struct un_t {
-	int	magic;		/* Unit Magic Number.			*/
-	struct	channel_t *un_ch;
-	u32	un_time;
-	u32	un_type;
-	int	un_open_count;	/* Counter of opens to port		*/
-	struct tty_struct *un_tty;/* Pointer to unit tty structure	*/
-	u32	un_flags;	/* Unit flags				*/
-	wait_queue_head_t un_flags_wait; /* Place to sleep to wait on unit */
-	u32	un_dev;		/* Minor device number			*/
-	tcflag_t un_oflag;	/* oflags being done on board		*/
-	tcflag_t un_lflag;	/* lflags being done on board		*/
-	struct device *un_sysfs;
-};
-
-/************************************************************************
- * Device flag definitions for ch_flags.
- ************************************************************************/
-#define CH_PRON         0x0001          /* Printer on string                */
-#define CH_OUT          0x0002          /* Dial-out device open             */
-#define CH_STOP         0x0004          /* Output is stopped                */
-#define CH_STOPI        0x0008          /* Input is stopped                 */
-#define CH_CD           0x0010          /* Carrier is present               */
-#define CH_FCAR         0x0020          /* Carrier forced on                */
-
-#define CH_RXBLOCK      0x0080          /* Enable rx blocked flag           */
-#define CH_WLOW         0x0100          /* Term waiting low event           */
-#define CH_WEMPTY       0x0200          /* Term waiting empty event         */
-#define CH_RENABLE      0x0400          /* Buffer just emptied          */
-#define CH_RACTIVE      0x0800          /* Process active in xxread()   */
-#define CH_RWAIT        0x1000          /* Process waiting in xxread()  */
-#define CH_BAUD0	0x2000		/* Used for checking B0 transitions */
-#define CH_HANGUP       0x8000		/* Hangup received                  */
-
-/*
- * Definitions for ch_sniff_flags
- */
-#define SNIFF_OPEN	0x1
-#define SNIFF_WAIT_DATA	0x2
-#define SNIFF_WAIT_SPACE 0x4
-
-/************************************************************************
- ***	Definitions for Digi ditty(1) command.
- ************************************************************************/
-
-/************************************************************************
- * This module provides application access to special Digi
- * serial line enhancements which are not standard UNIX(tm) features.
- ************************************************************************/
-
-#if !defined(TIOCMODG)
-
-#define	TIOCMODG	(('d'<<8) | 250)	/* get modem ctrl state	*/
-#define	TIOCMODS	(('d'<<8) | 251)	/* set modem ctrl state	*/
-
-#ifndef TIOCM_LE
-#define		TIOCM_LE	0x01		/* line enable		*/
-#define		TIOCM_DTR	0x02		/* data terminal ready	*/
-#define		TIOCM_RTS	0x04		/* request to send	*/
-#define		TIOCM_ST	0x08		/* secondary transmit	*/
-#define		TIOCM_SR	0x10		/* secondary receive	*/
-#define		TIOCM_CTS	0x20		/* clear to send	*/
-#define		TIOCM_CAR	0x40		/* carrier detect	*/
-#define		TIOCM_RNG	0x80		/* ring	indicator	*/
-#define		TIOCM_DSR	0x100		/* data set ready	*/
-#define		TIOCM_RI	TIOCM_RNG	/* ring (alternate)	*/
-#define		TIOCM_CD	TIOCM_CAR	/* carrier detect (alt)	*/
-#endif
-
-#endif
-
-#if !defined(TIOCMSET)
-#define	TIOCMSET	(('d'<<8) | 252)	/* set modem ctrl state	*/
-#define	TIOCMGET	(('d'<<8) | 253)	/* set modem ctrl state	*/
-#endif
-
-#if !defined(TIOCMBIC)
-#define	TIOCMBIC	(('d'<<8) | 254)	/* set modem ctrl state */
-#define	TIOCMBIS	(('d'<<8) | 255)	/* set modem ctrl state */
-#endif
-
-#if !defined(TIOCSDTR)
-#define	TIOCSDTR	(('e'<<8) | 0)		/* set DTR		*/
-#define	TIOCCDTR	(('e'<<8) | 1)		/* clear DTR		*/
-#endif
-
-/************************************************************************
- * Ioctl command arguments for DIGI parameters.
- ************************************************************************/
-#define DIGI_GETA	(('e'<<8) | 94)		/* Read params		*/
-
-#define DIGI_SETA	(('e'<<8) | 95)		/* Set params		*/
-#define DIGI_SETAW	(('e'<<8) | 96)		/* Drain & set params	*/
-#define DIGI_SETAF	(('e'<<8) | 97)		/* Drain, flush & set params */
-
-#define DIGI_KME	(('e'<<8) | 98)		/* Read/Write Host	*/
-						/* Adapter Memory	*/
-
-#define	DIGI_GETFLOW	(('e'<<8) | 99)		/* Get startc/stopc flow */
-						/* control characters    */
-#define	DIGI_SETFLOW	(('e'<<8) | 100)	/* Set startc/stopc flow */
-						/* control characters	 */
-#define	DIGI_GETAFLOW	(('e'<<8) | 101)	/* Get Aux. startc/stopc */
-						/* flow control chars    */
-#define	DIGI_SETAFLOW	(('e'<<8) | 102)	/* Set Aux. startc/stopc */
-						/* flow control chars	 */
-
-#define DIGI_GEDELAY	(('d'<<8) | 246)	/* Get edelay */
-#define DIGI_SEDELAY	(('d'<<8) | 247)	/* Set edelay */
-
-struct	digiflow_t {
-	unsigned char	startc;			/* flow cntl start char	*/
-	unsigned char	stopc;			/* flow cntl stop char	*/
-};
-
-#ifdef	FLOW_2200
-#define	F2200_GETA	(('e'<<8) | 104)	/* Get 2x36 flow cntl flags */
-#define	F2200_SETAW	(('e'<<8) | 105)	/* Set 2x36 flow cntl flags */
-#define		F2200_MASK	0x03		/* 2200 flow cntl bit mask  */
-#define		FCNTL_2200	0x01		/* 2x36 terminal flow cntl  */
-#define		PCNTL_2200	0x02		/* 2x36 printer flow cntl   */
-#define	F2200_XON	0xf8
-#define	P2200_XON	0xf9
-#define	F2200_XOFF	0xfa
-#define	P2200_XOFF	0xfb
-
-#define	FXOFF_MASK	0x03			/* 2200 flow status mask    */
-#define	RCVD_FXOFF	0x01			/* 2x36 Terminal XOFF rcvd  */
-#define	RCVD_PXOFF	0x02			/* 2x36 Printer XOFF rcvd   */
-#endif
-
-/************************************************************************
- * Values for digi_flags
- ************************************************************************/
-#define DIGI_IXON	0x0001		/* Handle IXON in the FEP	*/
-#define DIGI_FAST	0x0002		/* Fast baud rates		*/
-#define RTSPACE		0x0004		/* RTS input flow control	*/
-#define CTSPACE		0x0008		/* CTS output flow control	*/
-#define DSRPACE		0x0010		/* DSR output flow control	*/
-#define DCDPACE		0x0020		/* DCD output flow control	*/
-#define DTRPACE		0x0040		/* DTR input flow control	*/
-#define DIGI_COOK	0x0080		/* Cooked processing done in FEP */
-#define DIGI_FORCEDCD	0x0100		/* Force carrier		*/
-#define	DIGI_ALTPIN	0x0200		/* Alternate RJ-45 pin config	*/
-#define	DIGI_AIXON	0x0400		/* Aux flow control in fep	*/
-#define	DIGI_PRINTER	0x0800		/* Hold port open for flow cntrl*/
-#define DIGI_PP_INPUT	0x1000		/* Change parallel port to input*/
-#define DIGI_DTR_TOGGLE 0x2000		/* Support DTR Toggle		*/
-#define	DIGI_422	0x4000		/* for 422/232 selectable panel */
-#define DIGI_RTS_TOGGLE	0x8000		/* Support RTS Toggle		*/
-
-/************************************************************************
- * These options are not supported on the comxi.
- ************************************************************************/
-#define	DIGI_COMXI	(DIGI_FAST|DIGI_COOK|DSRPACE|DCDPACE|DTRPACE)
-
-#define DIGI_PLEN	28		/* String length		*/
-#define	DIGI_TSIZ	10		/* Terminal string len		*/
-
-/************************************************************************
- * Structure used with ioctl commands for DIGI parameters.
- ************************************************************************/
-struct digi_t {
-	unsigned short	digi_flags;		/* Flags (see above)	*/
-	unsigned short	digi_maxcps;		/* Max printer CPS	*/
-	unsigned short	digi_maxchar;		/* Max chars in print queue */
-	unsigned short	digi_bufsize;		/* Buffer size		*/
-	unsigned char	digi_onlen;		/* Length of ON string	*/
-	unsigned char	digi_offlen;		/* Length of OFF string	*/
-	char		digi_onstr[DIGI_PLEN];	/* Printer on string	*/
-	char		digi_offstr[DIGI_PLEN];	/* Printer off string	*/
-	char		digi_term[DIGI_TSIZ];	/* terminal string	*/
-};
-
-/************************************************************************
- * KME definitions and structures.
- ************************************************************************/
-#define	RW_IDLE		0	/* Operation complete			*/
-#define	RW_READ		1	/* Read Concentrator Memory		*/
-#define	RW_WRITE	2	/* Write Concentrator Memory		*/
-
-struct rw_t {
-	unsigned char	rw_req;		/* Request type			*/
-	unsigned char	rw_board;	/* Host Adapter board number	*/
-	unsigned char	rw_conc;	/* Concentrator number		*/
-	unsigned char	rw_reserved;	/* Reserved for expansion	*/
-	unsigned long	rw_addr;	/* Address in concentrator	*/
-	unsigned short	rw_size;	/* Read/write request length	*/
-	unsigned char	rw_data[128];	/* Data to read/write		*/
-};
-
-/************************************************************************
- * Structure to get driver status information
- ************************************************************************/
-struct digi_dinfo {
-	unsigned long	dinfo_nboards;		/* # boards configured	*/
-	char		dinfo_reserved[12];	/* for future expansion */
-	char		dinfo_version[16];	/* driver version       */
-};
-
-#define	DIGI_GETDD	(('d'<<8) | 248)	/* get driver info      */
-
-/************************************************************************
- * Structure used with ioctl commands for per-board information
- *
- * physsize and memsize differ when board has "windowed" memory
- ************************************************************************/
-struct digi_info {
-	unsigned long	info_bdnum;		/* Board number (0 based)  */
-	unsigned long	info_ioport;		/* io port address         */
-	unsigned long	info_physaddr;		/* memory address          */
-	unsigned long	info_physsize;		/* Size of host mem window */
-	unsigned long	info_memsize;		/* Amount of dual-port mem */
-						/* on board                */
-	unsigned short	info_bdtype;		/* Board type              */
-	unsigned short	info_nports;		/* number of ports         */
-	char		info_bdstate;		/* board state             */
-	char		info_reserved[7];	/* for future expansion    */
-};
-
-#define	DIGI_GETBD	(('d'<<8) | 249)	/* get board info          */
-
-struct digi_stat {
-	unsigned int	info_chan;		/* Channel number (0 based)  */
-	unsigned int	info_brd;		/* Board number (0 based)  */
-	unsigned long	info_cflag;		/* cflag for channel       */
-	unsigned long	info_iflag;		/* iflag for channel       */
-	unsigned long	info_oflag;		/* oflag for channel       */
-	unsigned long	info_mstat;		/* mstat for channel       */
-	unsigned long	info_tx_data;		/* tx_data for channel       */
-	unsigned long	info_rx_data;		/* rx_data for channel       */
-	unsigned long	info_hflow;		/* hflow for channel       */
-	unsigned long	info_reserved[8];	/* for future expansion    */
-};
-
-#define	DIGI_GETSTAT	(('d'<<8) | 244)	/* get board info          */
-/************************************************************************
- *
- * Structure used with ioctl commands for per-channel information
- *
- ************************************************************************/
-struct digi_ch {
-	unsigned long	info_bdnum;		/* Board number (0 based)  */
-	unsigned long	info_channel;		/* Channel index number    */
-	unsigned long	info_ch_cflag;		/* Channel cflag           */
-	unsigned long	info_ch_iflag;		/* Channel iflag           */
-	unsigned long	info_ch_oflag;		/* Channel oflag           */
-	unsigned long	info_chsize;		/* Channel structure size  */
-	unsigned long	info_sleep_stat;	/* sleep status		   */
-	dev_t		info_dev;		/* device number	   */
-	unsigned char	info_initstate;		/* Channel init state	   */
-	unsigned char	info_running;		/* Channel running state   */
-	long		reserved[8];		/* reserved for future use */
-};
-
-/*
-* This structure is used with the DIGI_FEPCMD ioctl to
-* tell the driver which port to send the command for.
-*/
-struct digi_cmd {
-	int	cmd;
-	int	word;
-	int	ncmds;
-	int	chan; /* channel index (zero based) */
-	int	bdid; /* board index (zero based) */
-};
-
-/*
-*  info_sleep_stat defines
-*/
-#define INFO_RUNWAIT	0x0001
-#define INFO_WOPEN	0x0002
-#define INFO_TTIOW	0x0004
-#define INFO_CH_RWAIT	0x0008
-#define INFO_CH_WEMPTY	0x0010
-#define INFO_CH_WLOW	0x0020
-#define INFO_XXBUF_BUSY 0x0040
-
-#define	DIGI_GETCH	(('d'<<8) | 245)	/* get board info          */
-
-/* Board type definitions */
-
-#define	SUBTYPE		0007
-#define	T_PCXI		0000
-#define T_PCXM		0001
-#define T_PCXE		0002
-#define T_PCXR		0003
-#define T_SP		0004
-#define T_SP_PLUS	0005
-#	define T_HERC	0000
-#	define T_HOU	0001
-#	define T_LON	0002
-#	define T_CHA	0003
-#define FAMILY		0070
-#define T_COMXI		0000
-#define T_PCXX		0010
-#define T_CX		0020
-#define T_EPC		0030
-#define	T_PCLITE	0040
-#define	T_SPXX		0050
-#define	T_AVXX		0060
-#define T_DXB		0070
-#define T_A2K_4_8	0070
-#define BUSTYPE		0700
-#define T_ISABUS	0000
-#define T_MCBUS		0100
-#define	T_EISABUS	0200
-#define	T_PCIBUS	0400
-
-/* Board State Definitions */
-
-#define	BD_RUNNING	0x0
-#define	BD_REASON	0x7f
-#define	BD_NOTFOUND	0x1
-#define	BD_NOIOPORT	0x2
-#define	BD_NOMEM	0x3
-#define	BD_NOBIOS	0x4
-#define	BD_NOFEP	0x5
-#define	BD_FAILED	0x6
-#define BD_ALLOCATED	0x7
-#define BD_TRIBOOT	0x8
-#define	BD_BADKME	0x80
-
-#define DIGI_LOOPBACK	(('d'<<8) | 252)	/* Enable/disable UART  */
-						/* internal loopback    */
-#define DIGI_SPOLL	(('d'<<8) | 254)	/* change poller rate   */
-
-#define DIGI_SETCUSTOMBAUD _IOW('e', 106, int)	/* Set integer baud rate */
-#define DIGI_GETCUSTOMBAUD _IOR('e', 107, int)	/* Get integer baud rate */
-#define DIGI_RESET_PORT	   (('e'<<8) | 93)	/* Reset port		 */
-
-/************************************************************************
- * Channel information structure.
- ************************************************************************/
-struct channel_t {
-	int magic;			/* Channel Magic Number		*/
-	struct bs_t __iomem *ch_bs;	/* Base structure pointer       */
-	struct cm_t __iomem *ch_cm;	/* Command queue pointer        */
-	struct board_t *ch_bd;		/* Board structure pointer      */
-	u8 __iomem *ch_vaddr;		/* FEP memory origin            */
-	u8 __iomem *ch_taddr;		/* Write buffer origin          */
-	u8 __iomem *ch_raddr;		/* Read buffer origin           */
-	struct digi_t  ch_digi;		/* Transparent Print structure  */
-	struct un_t ch_tun;		/* Terminal unit info           */
-	struct un_t ch_pun;		/* Printer unit info            */
-
-	spinlock_t	ch_lock;	/* provide for serialization */
-	wait_queue_head_t ch_flags_wait;
-
-	u32	pscan_state;
-	u8	pscan_savechar;
-
-	u32 ch_portnum;			/* Port number, 0 offset.	*/
-	u32 ch_open_count;		/* open count			*/
-	u32	ch_flags;		/* Channel flags                */
-
-	u32	ch_cpstime;		/* Time for CPS calculations    */
-
-	tcflag_t ch_c_iflag;		/* channel iflags               */
-	tcflag_t ch_c_cflag;		/* channel cflags               */
-	tcflag_t ch_c_oflag;		/* channel oflags               */
-	tcflag_t ch_c_lflag;		/* channel lflags               */
-
-	u16  ch_fepiflag;		/* FEP tty iflags               */
-	u16  ch_fepcflag;		/* FEP tty cflags               */
-	u16  ch_fepoflag;		/* FEP tty oflags               */
-	u16  ch_wopen;			/* Waiting for open process cnt */
-	u16  ch_tstart;			/* Transmit buffer start        */
-	u16  ch_tsize;			/* Transmit buffer size         */
-	u16  ch_rstart;			/* Receive buffer start         */
-	u16  ch_rsize;			/* Receive buffer size          */
-	u16  ch_rdelay;			/* Receive delay time           */
-
-	u16	ch_tlw;			/* Our currently set low water mark */
-
-	u16  ch_cook;			/* Output character mask        */
-
-	u8   ch_card;			/* Card channel is on           */
-	u8   ch_stopc;			/* Stop character               */
-	u8   ch_startc;			/* Start character              */
-
-	u8   ch_mostat;			/* FEP output modem status      */
-	u8   ch_mistat;			/* FEP input modem status       */
-	u8   ch_mforce;			/* Modem values to be forced    */
-	u8   ch_mval;			/* Force values                 */
-	u8   ch_fepstopc;		/* FEP stop character           */
-	u8   ch_fepstartc;		/* FEP start character          */
-
-	u8   ch_astopc;			/* Auxiliary Stop character     */
-	u8   ch_astartc;		/* Auxiliary Start character    */
-	u8   ch_fepastopc;		/* Auxiliary FEP stop char      */
-	u8   ch_fepastartc;		/* Auxiliary FEP start char     */
-
-	u8   ch_hflow;			/* FEP hardware handshake       */
-	u8   ch_dsr;			/* stores real dsr value        */
-	u8   ch_cd;			/* stores real cd value         */
-	u8   ch_tx_win;			/* channel tx buffer window     */
-	u8   ch_rx_win;			/* channel rx buffer window     */
-	uint	ch_custom_speed;	/* Custom baud, if set		*/
-	uint	ch_baud_info;		/* Current baud info for /proc output */
-	ulong	ch_rxcount;		/* total of data received so far      */
-	ulong	ch_txcount;		/* total of data transmitted so far   */
-	ulong	ch_err_parity;		/* Count of parity errors on channel  */
-	ulong	ch_err_frame;		/* Count of framing errors on channel */
-	ulong	ch_err_break;		/* Count of breaks on channel	*/
-	ulong	ch_err_overrun;		/* Count of overruns on channel	*/
-};
-
-/************************************************************************
- * Command structure definition.
- ************************************************************************/
-struct cm_t {
-	unsigned short cm_head;		/* Command buffer head offset */
-	unsigned short cm_tail;		/* Command buffer tail offset */
-	unsigned short cm_start;	/* start offset of buffer     */
-	unsigned short cm_max;		/* last offset of buffer      */
-};
-
-/************************************************************************
- * Event structure definition.
- ************************************************************************/
-struct ev_t {
-	unsigned short ev_head;		/* Command buffer head offset */
-	unsigned short ev_tail;		/* Command buffer tail offset */
-	unsigned short ev_start;	/* start offset of buffer     */
-	unsigned short ev_max;		/* last offset of buffer      */
-};
-
-/************************************************************************
- * Download buffer structure.
- ************************************************************************/
-struct downld_t {
-	u8	dl_type;		/* Header                       */
-	u8	dl_seq;			/* Download sequence            */
-	ushort	dl_srev;		/* Software revision number     */
-	ushort	dl_lrev;		/* Low revision number          */
-	ushort	dl_hrev;		/* High revision number         */
-	ushort	dl_seg;			/* Start segment address        */
-	ushort	dl_size;		/* Number of bytes to download  */
-	u8	dl_data[1024];		/* Download data                */
-};
-
-/************************************************************************
- * Per channel buffer structure
- ************************************************************************
- *              Base Structure Entries Usage Meanings to Host           *
- *                                                                      *
- *        W = read write        R = read only                           *
- *        C = changed by commands only                                  *
- *        U = unknown (may be changed w/o notice)                       *
- ************************************************************************/
-struct bs_t {
-	unsigned short  tp_jmp;		/* Transmit poll jump	 */
-	unsigned short  tc_jmp;		/* Cooked procedure jump */
-	unsigned short  ri_jmp;		/* Not currently used	 */
-	unsigned short  rp_jmp;		/* Receive poll jump	 */
-
-	unsigned short  tx_seg;		/* W Tx segment	 */
-	unsigned short  tx_head;	/* W Tx buffer head offset */
-	unsigned short  tx_tail;	/* R Tx buffer tail offset */
-	unsigned short  tx_max;		/* W Tx buffer size - 1    */
-
-	unsigned short  rx_seg;		/* W Rx segment	    */
-	unsigned short  rx_head;	/* W Rx buffer head offset */
-	unsigned short  rx_tail;	/* R Rx buffer tail offset */
-	unsigned short  rx_max;		/* W Rx buffer size - 1    */
-
-	unsigned short  tx_lw;		/* W Tx buffer low water mark */
-	unsigned short  rx_lw;		/* W Rx buffer low water mark */
-	unsigned short  rx_hw;		/* W Rx buffer high water mark*/
-	unsigned short  incr;		/* W Increment to next channel*/
-
-	unsigned short  fepdev;		/* U SCC device base address  */
-	unsigned short  edelay;		/* W Exception delay          */
-	unsigned short  blen;		/* W Break length             */
-	unsigned short  btime;		/* U Break complete time      */
-
-	unsigned short  iflag;		/* C UNIX input flags         */
-	unsigned short  oflag;		/* C UNIX output flags        */
-	unsigned short  cflag;		/* C UNIX control flags       */
-	unsigned short  wfill[13];	/* U Reserved for expansion   */
-
-	unsigned char   num;		/* U Channel number           */
-	unsigned char   ract;		/* U Receiver active counter  */
-	unsigned char   bstat;		/* U Break status bits        */
-	unsigned char   tbusy;		/* W Transmit busy            */
-	unsigned char   iempty;		/* W Transmit empty event     */
-					/* enable                     */
-	unsigned char   ilow;		/* W Transmit low-water event */
-					/* enable                     */
-	unsigned char   idata;		/* W Receive data interrupt   */
-					/* enable                     */
-	unsigned char   eflag;		/* U Host event flags         */
-
-	unsigned char   tflag;		/* U Transmit flags           */
-	unsigned char   rflag;		/* U Receive flags            */
-	unsigned char   xmask;		/* U Transmit ready flags     */
-	unsigned char   xval;		/* U Transmit ready value     */
-	unsigned char   m_stat;		/* RC Modem status bits       */
-	unsigned char   m_change;	/* U Modem bits which changed */
-	unsigned char   m_int;		/* W Modem interrupt enable   */
-					/* bits                       */
-	unsigned char   m_last;		/* U Last modem status        */
-
-	unsigned char   mtran;		/* C Unreported modem trans   */
-	unsigned char   orun;		/* C Buffer overrun occurred  */
-	unsigned char   astartc;	/* W Auxiliary Xon char       */
-	unsigned char   astopc;		/* W Auxiliary Xoff char      */
-	unsigned char   startc;		/* W Xon character            */
-	unsigned char   stopc;		/* W Xoff character           */
-	unsigned char   vnextc;		/* W Vnext character          */
-	unsigned char   hflow;		/* C Software flow control    */
-
-	unsigned char   fillc;		/* U Delay Fill character     */
-	unsigned char   ochar;		/* U Saved output character   */
-	unsigned char   omask;		/* U Output character mask    */
-
-	unsigned char   bfill[13];	/* U Reserved for expansion   */
-
-	unsigned char   scc[16];	/* U SCC registers            */
-};
-
-struct cnode {
-	struct cnode *next;
-	int type;
-	int numbrd;
-
-	union {
-		struct {
-			char  type;	/* Board Type           */
-			long  port;	/* I/O Address		*/
-			char  *portstr; /* I/O Address in string */
-			long  addr;	/* Memory Address	*/
-			char  *addrstr; /* Memory Address in string */
-			long  pcibus;	/* PCI BUS		*/
-			char  *pcibusstr; /* PCI BUS in string */
-			long  pcislot;	/* PCI SLOT		*/
-			char  *pcislotstr; /* PCI SLOT in string */
-			long  nport;	/* Number of Ports	*/
-			char  *id;	/* tty id		*/
-			long  start;	/* start of tty counting */
-			char  *method;  /* Install method       */
-			char  v_port;
-			char  v_addr;
-			char  v_pcibus;
-			char  v_pcislot;
-			char  v_nport;
-			char  v_id;
-			char  v_start;
-			char  v_method;
-			char  line1;
-			char  line2;
-			char  conc1;   /* total concs in line1 */
-			char  conc2;   /* total concs in line2 */
-			char  module1; /* total modules for line1 */
-			char  module2; /* total modules for line2 */
-			char  *status; /* config status */
-			char  *dimstatus;	 /* Y/N */
-			int   status_index; /* field pointer */
-		} board;
-
-		struct {
-			char  *cable;
-			char  v_cable;
-			long  speed;
-			char  v_speed;
-		} line;
-
-		struct {
-			char  type;
-			char  *connect;
-			long  speed;
-			long  nport;
-			char  *id;
-			char  *idstr;
-			long  start;
-			char  v_connect;
-			char  v_speed;
-			char  v_nport;
-			char  v_id;
-			char  v_start;
-		} conc;
-
-		struct {
-			char type;
-			long nport;
-			char *id;
-			char *idstr;
-			long start;
-			char v_nport;
-			char v_id;
-			char v_start;
-		} module;
-
-		char *ttyname;
-		char *cuname;
-		char *printname;
-		long majornumber;
-		long altpin;
-		long ttysize;
-		long chsize;
-		long bssize;
-		long unsize;
-		long f2size;
-		long vpixsize;
-		long useintr;
-	} u;
-};
-#endif
diff --git a/drivers/staging/dgnc/Kconfig b/drivers/staging/dgnc/Kconfig
deleted file mode 100644
index 032c2a795238..000000000000
--- a/drivers/staging/dgnc/Kconfig
+++ /dev/null
@@ -1,6 +0,0 @@
-config DGNC
-       tristate "Digi Neo and Classic PCI Products"
-       default n
-       depends on TTY && PCI
-       ---help---
-       Driver for the Digi International Neo and Classic PCI based product line.
diff --git a/drivers/staging/dgnc/Makefile b/drivers/staging/dgnc/Makefile
deleted file mode 100644
index 995c874f40eb..000000000000
--- a/drivers/staging/dgnc/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-obj-$(CONFIG_DGNC) += dgnc.o
-
-dgnc-objs :=   dgnc_cls.o dgnc_driver.o\
-               dgnc_mgmt.o dgnc_neo.o\
-               dgnc_tty.o dgnc_sysfs.o\
-	       dgnc_utils.o
diff --git a/drivers/staging/dgnc/TODO b/drivers/staging/dgnc/TODO
deleted file mode 100644
index 0e0825bd70ae..000000000000
--- a/drivers/staging/dgnc/TODO
+++ /dev/null
@@ -1,10 +0,0 @@
-* checkpatch fixes
-* remove unnecessary comments
-* remove unnecessary error messages. Example kzalloc() has its
-  own error message. Adding an extra one is useless.
-* use goto statements for error handling when appropriate
-* there is a lot of unnecessary code in the driver. It was
-  originally a standalone driver. Remove uneeded code.
-
-Please send patches to Greg Kroah-Hartman <greg@kroah.com> and
-Cc: Lidza Louina <lidza.louina@gmail.com>
diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
deleted file mode 100644
index a629a78964ce..000000000000
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ /dev/null
@@ -1,1314 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>	/* For jiffies, task states */
-#include <linux/interrupt.h>	/* For tasklet and interrupt structs/defines */
-#include <linux/delay.h>	/* For udelay */
-#include <linux/io.h>		/* For read[bwl]/write[bwl] */
-#include <linux/serial.h>	/* For struct async_serial */
-#include <linux/serial_reg.h>	/* For the various UART offsets */
-#include <linux/pci.h>
-
-#include "dgnc_driver.h"	/* Driver main header file */
-#include "dgnc_cls.h"
-#include "dgnc_tty.h"
-
-static inline void cls_parse_isr(struct dgnc_board *brd, uint port);
-static inline void cls_clear_break(struct channel_t *ch, int force);
-static inline void cls_set_cts_flow_control(struct channel_t *ch);
-static inline void cls_set_rts_flow_control(struct channel_t *ch);
-static inline void cls_set_ixon_flow_control(struct channel_t *ch);
-static inline void cls_set_ixoff_flow_control(struct channel_t *ch);
-static inline void cls_set_no_output_flow_control(struct channel_t *ch);
-static inline void cls_set_no_input_flow_control(struct channel_t *ch);
-static void cls_parse_modem(struct channel_t *ch, unsigned char signals);
-static void cls_tasklet(unsigned long data);
-static void cls_vpd(struct dgnc_board *brd);
-static void cls_uart_init(struct channel_t *ch);
-static void cls_uart_off(struct channel_t *ch);
-static int cls_drain(struct tty_struct *tty, uint seconds);
-static void cls_param(struct tty_struct *tty);
-static void cls_assert_modem_signals(struct channel_t *ch);
-static void cls_flush_uart_write(struct channel_t *ch);
-static void cls_flush_uart_read(struct channel_t *ch);
-static void cls_disable_receiver(struct channel_t *ch);
-static void cls_enable_receiver(struct channel_t *ch);
-static void cls_send_break(struct channel_t *ch, int msecs);
-static void cls_send_start_character(struct channel_t *ch);
-static void cls_send_stop_character(struct channel_t *ch);
-static void cls_copy_data_from_uart_to_queue(struct channel_t *ch);
-static void cls_copy_data_from_queue_to_uart(struct channel_t *ch);
-static uint cls_get_uart_bytes_left(struct channel_t *ch);
-static void cls_send_immediate_char(struct channel_t *ch, unsigned char);
-static irqreturn_t cls_intr(int irq, void *voidbrd);
-
-struct board_ops dgnc_cls_ops = {
-	.tasklet =			cls_tasklet,
-	.intr =				cls_intr,
-	.uart_init =			cls_uart_init,
-	.uart_off =			cls_uart_off,
-	.drain =			cls_drain,
-	.param =			cls_param,
-	.vpd =				cls_vpd,
-	.assert_modem_signals =		cls_assert_modem_signals,
-	.flush_uart_write =		cls_flush_uart_write,
-	.flush_uart_read =		cls_flush_uart_read,
-	.disable_receiver =		cls_disable_receiver,
-	.enable_receiver =		cls_enable_receiver,
-	.send_break =			cls_send_break,
-	.send_start_character =		cls_send_start_character,
-	.send_stop_character =		cls_send_stop_character,
-	.copy_data_from_queue_to_uart = cls_copy_data_from_queue_to_uart,
-	.get_uart_bytes_left =		cls_get_uart_bytes_left,
-	.send_immediate_char =		cls_send_immediate_char
-};
-
-static inline void cls_set_cts_flow_control(struct channel_t *ch)
-{
-	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
-	unsigned char ier = readb(&ch->ch_cls_uart->ier);
-	unsigned char isr_fcr = 0;
-
-	/*
-	 * The Enhanced Register Set may only be accessed when
-	 * the Line Control Register is set to 0xBFh.
-	 */
-	writeb(UART_EXAR654_ENHANCED_REGISTER_SET, &ch->ch_cls_uart->lcr);
-
-	isr_fcr = readb(&ch->ch_cls_uart->isr_fcr);
-
-	/* Turn on CTS flow control, turn off IXON flow control */
-	isr_fcr |= (UART_EXAR654_EFR_ECB | UART_EXAR654_EFR_CTSDSR);
-	isr_fcr &= ~(UART_EXAR654_EFR_IXON);
-
-	writeb(isr_fcr, &ch->ch_cls_uart->isr_fcr);
-
-	/* Write old LCR value back out, which turns enhanced access off */
-	writeb(lcrb, &ch->ch_cls_uart->lcr);
-
-	/*
-	 * Enable interrupts for CTS flow, turn off interrupts for
-	 * received XOFF chars
-	 */
-	ier |= (UART_EXAR654_IER_CTSDSR);
-	ier &= ~(UART_EXAR654_IER_XOFF);
-	writeb(ier, &ch->ch_cls_uart->ier);
-
-	/* Set the usual FIFO values */
-	writeb((UART_FCR_ENABLE_FIFO), &ch->ch_cls_uart->isr_fcr);
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_16654_FCR_RXTRIGGER_56 |
-		UART_16654_FCR_TXTRIGGER_16 | UART_FCR_CLEAR_RCVR),
-		&ch->ch_cls_uart->isr_fcr);
-
-	ch->ch_t_tlevel = 16;
-
-}
-
-static inline void cls_set_ixon_flow_control(struct channel_t *ch)
-{
-	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
-	unsigned char ier = readb(&ch->ch_cls_uart->ier);
-	unsigned char isr_fcr = 0;
-
-	/*
-	 * The Enhanced Register Set may only be accessed when
-	 * the Line Control Register is set to 0xBFh.
-	 */
-	writeb(UART_EXAR654_ENHANCED_REGISTER_SET, &ch->ch_cls_uart->lcr);
-
-	isr_fcr = readb(&ch->ch_cls_uart->isr_fcr);
-
-	/* Turn on IXON flow control, turn off CTS flow control */
-	isr_fcr |= (UART_EXAR654_EFR_ECB | UART_EXAR654_EFR_IXON);
-	isr_fcr &= ~(UART_EXAR654_EFR_CTSDSR);
-
-	writeb(isr_fcr, &ch->ch_cls_uart->isr_fcr);
-
-	/* Now set our current start/stop chars while in enhanced mode */
-	writeb(ch->ch_startc, &ch->ch_cls_uart->mcr);
-	writeb(0, &ch->ch_cls_uart->lsr);
-	writeb(ch->ch_stopc, &ch->ch_cls_uart->msr);
-	writeb(0, &ch->ch_cls_uart->spr);
-
-	/* Write old LCR value back out, which turns enhanced access off */
-	writeb(lcrb, &ch->ch_cls_uart->lcr);
-
-	/*
-	 * Disable interrupts for CTS flow, turn on interrupts for
-	 * received XOFF chars
-	 */
-	ier &= ~(UART_EXAR654_IER_CTSDSR);
-	ier |= (UART_EXAR654_IER_XOFF);
-	writeb(ier, &ch->ch_cls_uart->ier);
-
-	/* Set the usual FIFO values */
-	writeb((UART_FCR_ENABLE_FIFO), &ch->ch_cls_uart->isr_fcr);
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_16654_FCR_RXTRIGGER_16 |
-		UART_16654_FCR_TXTRIGGER_16 | UART_FCR_CLEAR_RCVR),
-		&ch->ch_cls_uart->isr_fcr);
-
-}
-
-static inline void cls_set_no_output_flow_control(struct channel_t *ch)
-{
-	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
-	unsigned char ier = readb(&ch->ch_cls_uart->ier);
-	unsigned char isr_fcr = 0;
-
-	/*
-	 * The Enhanced Register Set may only be accessed when
-	 * the Line Control Register is set to 0xBFh.
-	 */
-	writeb(UART_EXAR654_ENHANCED_REGISTER_SET, &ch->ch_cls_uart->lcr);
-
-	isr_fcr = readb(&ch->ch_cls_uart->isr_fcr);
-
-	/* Turn off IXON flow control, turn off CTS flow control */
-	isr_fcr |= (UART_EXAR654_EFR_ECB);
-	isr_fcr &= ~(UART_EXAR654_EFR_CTSDSR | UART_EXAR654_EFR_IXON);
-
-	writeb(isr_fcr, &ch->ch_cls_uart->isr_fcr);
-
-	/* Write old LCR value back out, which turns enhanced access off */
-	writeb(lcrb, &ch->ch_cls_uart->lcr);
-
-	/*
-	 * Disable interrupts for CTS flow, turn off interrupts for
-	 * received XOFF chars
-	 */
-	ier &= ~(UART_EXAR654_IER_CTSDSR);
-	ier &= ~(UART_EXAR654_IER_XOFF);
-	writeb(ier, &ch->ch_cls_uart->ier);
-
-	/* Set the usual FIFO values */
-	writeb((UART_FCR_ENABLE_FIFO), &ch->ch_cls_uart->isr_fcr);
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_16654_FCR_RXTRIGGER_16 |
-		UART_16654_FCR_TXTRIGGER_16 | UART_FCR_CLEAR_RCVR),
-		&ch->ch_cls_uart->isr_fcr);
-
-	ch->ch_r_watermark = 0;
-	ch->ch_t_tlevel = 16;
-	ch->ch_r_tlevel = 16;
-
-}
-
-static inline void cls_set_rts_flow_control(struct channel_t *ch)
-{
-	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
-	unsigned char ier = readb(&ch->ch_cls_uart->ier);
-	unsigned char isr_fcr = 0;
-
-	/*
-	 * The Enhanced Register Set may only be accessed when
-	 * the Line Control Register is set to 0xBFh.
-	 */
-	writeb(UART_EXAR654_ENHANCED_REGISTER_SET, &ch->ch_cls_uart->lcr);
-
-	isr_fcr = readb(&ch->ch_cls_uart->isr_fcr);
-
-	/* Turn on RTS flow control, turn off IXOFF flow control */
-	isr_fcr |= (UART_EXAR654_EFR_ECB | UART_EXAR654_EFR_RTSDTR);
-	isr_fcr &= ~(UART_EXAR654_EFR_IXOFF);
-
-	writeb(isr_fcr, &ch->ch_cls_uart->isr_fcr);
-
-	/* Write old LCR value back out, which turns enhanced access off */
-	writeb(lcrb, &ch->ch_cls_uart->lcr);
-
-	/* Enable interrupts for RTS flow */
-	ier |= (UART_EXAR654_IER_RTSDTR);
-	writeb(ier, &ch->ch_cls_uart->ier);
-
-	/* Set the usual FIFO values */
-	writeb((UART_FCR_ENABLE_FIFO), &ch->ch_cls_uart->isr_fcr);
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_16654_FCR_RXTRIGGER_56 |
-		UART_16654_FCR_TXTRIGGER_16 | UART_FCR_CLEAR_RCVR),
-		&ch->ch_cls_uart->isr_fcr);
-
-	ch->ch_r_watermark = 4;
-	ch->ch_r_tlevel = 8;
-
-}
-
-static inline void cls_set_ixoff_flow_control(struct channel_t *ch)
-{
-	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
-	unsigned char ier = readb(&ch->ch_cls_uart->ier);
-	unsigned char isr_fcr = 0;
-
-	/*
-	 * The Enhanced Register Set may only be accessed when
-	 * the Line Control Register is set to 0xBFh.
-	 */
-	writeb(UART_EXAR654_ENHANCED_REGISTER_SET, &ch->ch_cls_uart->lcr);
-
-	isr_fcr = readb(&ch->ch_cls_uart->isr_fcr);
-
-	/* Turn on IXOFF flow control, turn off RTS flow control */
-	isr_fcr |= (UART_EXAR654_EFR_ECB | UART_EXAR654_EFR_IXOFF);
-	isr_fcr &= ~(UART_EXAR654_EFR_RTSDTR);
-
-	writeb(isr_fcr, &ch->ch_cls_uart->isr_fcr);
-
-	/* Now set our current start/stop chars while in enhanced mode */
-	writeb(ch->ch_startc, &ch->ch_cls_uart->mcr);
-	writeb(0, &ch->ch_cls_uart->lsr);
-	writeb(ch->ch_stopc, &ch->ch_cls_uart->msr);
-	writeb(0, &ch->ch_cls_uart->spr);
-
-	/* Write old LCR value back out, which turns enhanced access off */
-	writeb(lcrb, &ch->ch_cls_uart->lcr);
-
-	/* Disable interrupts for RTS flow */
-	ier &= ~(UART_EXAR654_IER_RTSDTR);
-	writeb(ier, &ch->ch_cls_uart->ier);
-
-	/* Set the usual FIFO values */
-	writeb((UART_FCR_ENABLE_FIFO), &ch->ch_cls_uart->isr_fcr);
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_16654_FCR_RXTRIGGER_16 |
-		UART_16654_FCR_TXTRIGGER_16 | UART_FCR_CLEAR_RCVR),
-		&ch->ch_cls_uart->isr_fcr);
-
-}
-
-static inline void cls_set_no_input_flow_control(struct channel_t *ch)
-{
-	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
-	unsigned char ier = readb(&ch->ch_cls_uart->ier);
-	unsigned char isr_fcr = 0;
-
-	/*
-	 * The Enhanced Register Set may only be accessed when
-	 * the Line Control Register is set to 0xBFh.
-	 */
-	writeb(UART_EXAR654_ENHANCED_REGISTER_SET, &ch->ch_cls_uart->lcr);
-
-	isr_fcr = readb(&ch->ch_cls_uart->isr_fcr);
-
-	/* Turn off IXOFF flow control, turn off RTS flow control */
-	isr_fcr |= (UART_EXAR654_EFR_ECB);
-	isr_fcr &= ~(UART_EXAR654_EFR_RTSDTR | UART_EXAR654_EFR_IXOFF);
-
-	writeb(isr_fcr, &ch->ch_cls_uart->isr_fcr);
-
-	/* Write old LCR value back out, which turns enhanced access off */
-	writeb(lcrb, &ch->ch_cls_uart->lcr);
-
-	/* Disable interrupts for RTS flow */
-	ier &= ~(UART_EXAR654_IER_RTSDTR);
-	writeb(ier, &ch->ch_cls_uart->ier);
-
-	/* Set the usual FIFO values */
-	writeb((UART_FCR_ENABLE_FIFO), &ch->ch_cls_uart->isr_fcr);
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_16654_FCR_RXTRIGGER_16 |
-		UART_16654_FCR_TXTRIGGER_16 | UART_FCR_CLEAR_RCVR),
-		&ch->ch_cls_uart->isr_fcr);
-
-	ch->ch_t_tlevel = 16;
-	ch->ch_r_tlevel = 16;
-
-}
-
-/*
- * cls_clear_break.
- * Determines whether its time to shut off break condition.
- *
- * No locks are assumed to be held when calling this function.
- * channel lock is held and released in this function.
- */
-static inline void cls_clear_break(struct channel_t *ch, int force)
-{
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* Bail if we aren't currently sending a break. */
-	if (!ch->ch_stop_sending_break) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
-
-	/* Turn break off, and unset some variables */
-	if (ch->ch_flags & CH_BREAK_SENDING) {
-		if (time_after(jiffies, ch->ch_stop_sending_break) || force) {
-			unsigned char temp = readb(&ch->ch_cls_uart->lcr);
-
-			writeb((temp & ~UART_LCR_SBC), &ch->ch_cls_uart->lcr);
-			ch->ch_flags &= ~(CH_BREAK_SENDING);
-			ch->ch_stop_sending_break = 0;
-		}
-	}
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-/* Parse the ISR register for the specific port */
-static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
-{
-	struct channel_t *ch;
-	unsigned char isr = 0;
-	unsigned long flags;
-
-	/*
-	 * No need to verify board pointer, it was already
-	 * verified in the interrupt routine.
-	 */
-
-	if (port >= brd->nasync)
-		return;
-
-	ch = brd->channels[port];
-	if (ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	/* Here we try to figure out what caused the interrupt to happen */
-	while (1) {
-
-		isr = readb(&ch->ch_cls_uart->isr_fcr);
-
-		/* Bail if no pending interrupt on port */
-		if (isr & UART_IIR_NO_INT)
-			break;
-
-		/* Receive Interrupt pending */
-		if (isr & (UART_IIR_RDI | UART_IIR_RDI_TIMEOUT)) {
-			/* Read data from uart -> queue */
-			brd->intr_rx++;
-			ch->ch_intr_rx++;
-			cls_copy_data_from_uart_to_queue(ch);
-			dgnc_check_queue_flow_control(ch);
-		}
-
-		/* Transmit Hold register empty pending */
-		if (isr & UART_IIR_THRI) {
-			/* Transfer data (if any) from Write Queue -> UART. */
-			spin_lock_irqsave(&ch->ch_lock, flags);
-			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-			brd->intr_tx++;
-			ch->ch_intr_tx++;
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			cls_copy_data_from_queue_to_uart(ch);
-		}
-
-		/* CTS/RTS change of state */
-		if (isr & UART_IIR_CTSRTS) {
-			brd->intr_modem++;
-			ch->ch_intr_modem++;
-			/*
-			 * Don't need to do anything, the cls_parse_modem
-			 * below will grab the updated modem signals.
-			 */
-		}
-
-		/* Parse any modem signal changes */
-		cls_parse_modem(ch, readb(&ch->ch_cls_uart->msr));
-	}
-}
-
-/*
- * cls_param()
- * Send any/all changes to the line to the UART.
- */
-static void cls_param(struct tty_struct *tty)
-{
-	unsigned char lcr = 0;
-	unsigned char uart_lcr = 0;
-	unsigned char ier = 0;
-	unsigned char uart_ier = 0;
-	uint baud = 9600;
-	int quot = 0;
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t   *un;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = (struct un_t *) tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	/*
-	 * If baud rate is zero, flush queues, and set mval to drop DTR.
-	 */
-	if ((ch->ch_c_cflag & (CBAUD)) == 0) {
-		ch->ch_r_head = 0;
-		ch->ch_r_tail = 0;
-		ch->ch_e_head = 0;
-		ch->ch_e_tail = 0;
-		ch->ch_w_head = 0;
-		ch->ch_w_tail = 0;
-
-		cls_flush_uart_write(ch);
-		cls_flush_uart_read(ch);
-
-		/* The baudrate is B0 so all modem lines are to be dropped. */
-		ch->ch_flags |= (CH_BAUD0);
-		ch->ch_mostat &= ~(UART_MCR_RTS | UART_MCR_DTR);
-		cls_assert_modem_signals(ch);
-		ch->ch_old_baud = 0;
-		return;
-	} else if (ch->ch_custom_speed) {
-
-		baud = ch->ch_custom_speed;
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-
-			/*
-			 * Bring back up RTS and DTR...
-			 * Also handle RTS or DTR toggle if set.
-			 */
-			if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_RTS);
-			if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_DTR);
-		}
-
-	} else {
-		int iindex = 0;
-		int jindex = 0;
-
-		ulong bauds[4][16] = {
-			{ /* slowbaud */
-				0,      50,     75,     110,
-				134,    150,    200,    300,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* slowbaud & CBAUDEX */
-				0,      57600,  115200, 230400,
-				460800, 150,    200,    921600,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* fastbaud */
-				0,      57600,   76800, 115200,
-				131657, 153600, 230400, 460800,
-				921600, 1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* fastbaud & CBAUDEX */
-				0,      57600,  115200, 230400,
-				460800, 150,    200,    921600,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 }
-		};
-
-		/*
-		 * Only use the TXPrint baud rate if the terminal
-		 * unit is NOT open
-		 */
-		if (!(ch->ch_tun.un_flags & UN_ISOPEN) &&
-					 (un->un_type == DGNC_PRINT))
-			baud = C_BAUD(ch->ch_pun.un_tty) & 0xff;
-		else
-			baud = C_BAUD(ch->ch_tun.un_tty) & 0xff;
-
-		if (ch->ch_c_cflag & CBAUDEX)
-			iindex = 1;
-
-		if (ch->ch_digi.digi_flags & DIGI_FAST)
-			iindex += 2;
-
-		jindex = baud;
-
-		if ((iindex >= 0) && (iindex < 4) && (jindex >= 0) &&
-								(jindex < 16)) {
-			baud = bauds[iindex][jindex];
-		} else {
-			baud = 0;
-		}
-
-		if (baud == 0)
-			baud = 9600;
-
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-
-			/*
-			 * Bring back up RTS and DTR...
-			 * Also handle RTS or DTR toggle if set.
-			 */
-			if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_RTS);
-			if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_DTR);
-		}
-	}
-
-	if (ch->ch_c_cflag & PARENB)
-		lcr |= UART_LCR_PARITY;
-
-	if (!(ch->ch_c_cflag & PARODD))
-		lcr |= UART_LCR_EPAR;
-
-	/*
-	 * Not all platforms support mark/space parity,
-	 * so this will hide behind an ifdef.
-	 */
-#ifdef CMSPAR
-	if (ch->ch_c_cflag & CMSPAR)
-		lcr |= UART_LCR_SPAR;
-#endif
-
-	if (ch->ch_c_cflag & CSTOPB)
-		lcr |= UART_LCR_STOP;
-
-	switch (ch->ch_c_cflag & CSIZE) {
-	case CS5:
-		lcr |= UART_LCR_WLEN5;
-		break;
-	case CS6:
-		lcr |= UART_LCR_WLEN6;
-		break;
-	case CS7:
-		lcr |= UART_LCR_WLEN7;
-		break;
-	case CS8:
-	default:
-		lcr |= UART_LCR_WLEN8;
-		break;
-	}
-
-	uart_ier = readb(&ch->ch_cls_uart->ier);
-	ier =  uart_ier;
-	uart_lcr = readb(&ch->ch_cls_uart->lcr);
-
-	if (baud == 0)
-		baud = 9600;
-
-	quot = ch->ch_bd->bd_dividend / baud;
-
-	if (quot != 0 && ch->ch_old_baud != baud) {
-		ch->ch_old_baud = baud;
-		writeb(UART_LCR_DLAB, &ch->ch_cls_uart->lcr);
-		writeb((quot & 0xff), &ch->ch_cls_uart->txrx);
-		writeb((quot >> 8), &ch->ch_cls_uart->ier);
-		writeb(lcr, &ch->ch_cls_uart->lcr);
-	}
-
-	if (uart_lcr != lcr)
-		writeb(lcr, &ch->ch_cls_uart->lcr);
-
-	if (ch->ch_c_cflag & CREAD)
-		ier |= (UART_IER_RDI | UART_IER_RLSI);
-	else
-		ier &= ~(UART_IER_RDI | UART_IER_RLSI);
-
-	/*
-	 * Have the UART interrupt on modem signal changes ONLY when
-	 * we are in hardware flow control mode, or CLOCAL/FORCEDCD is not set.
-	 */
-	if ((ch->ch_digi.digi_flags & CTSPACE) ||
-		(ch->ch_digi.digi_flags & RTSPACE) ||
-		(ch->ch_c_cflag & CRTSCTS) ||
-		!(ch->ch_digi.digi_flags & DIGI_FORCEDCD) ||
-		!(ch->ch_c_cflag & CLOCAL))
-			ier |= UART_IER_MSI;
-	else
-			ier &= ~UART_IER_MSI;
-
-	ier |= UART_IER_THRI;
-
-	if (ier != uart_ier)
-		writeb(ier, &ch->ch_cls_uart->ier);
-
-	if (ch->ch_digi.digi_flags & CTSPACE || ch->ch_c_cflag & CRTSCTS) {
-		cls_set_cts_flow_control(ch);
-	} else if (ch->ch_c_iflag & IXON) {
-		/*
-		 * If start/stop is set to disable, then we should
-		 * disable flow control
-		 */
-		if ((ch->ch_startc == _POSIX_VDISABLE) ||
-					 (ch->ch_stopc == _POSIX_VDISABLE))
-			cls_set_no_output_flow_control(ch);
-		else
-			cls_set_ixon_flow_control(ch);
-	} else {
-		cls_set_no_output_flow_control(ch);
-	}
-
-	if (ch->ch_digi.digi_flags & RTSPACE || ch->ch_c_cflag & CRTSCTS) {
-		cls_set_rts_flow_control(ch);
-	} else if (ch->ch_c_iflag & IXOFF) {
-		/*
-		 * If start/stop is set to disable, then we should disable
-		 * flow control
-		 */
-		if ((ch->ch_startc == _POSIX_VDISABLE) ||
-				(ch->ch_stopc == _POSIX_VDISABLE))
-			cls_set_no_input_flow_control(ch);
-		else
-			cls_set_ixoff_flow_control(ch);
-	} else {
-		cls_set_no_input_flow_control(ch);
-	}
-
-	cls_assert_modem_signals(ch);
-
-	/* Get current status of the modem signals now */
-	cls_parse_modem(ch, readb(&ch->ch_cls_uart->msr));
-}
-
-/*
- * Our board poller function.
- */
-static void cls_tasklet(unsigned long data)
-{
-	struct dgnc_board *bd = (struct dgnc_board *) data;
-	struct channel_t *ch;
-	unsigned long flags;
-	int i;
-	int state = 0;
-	int ports = 0;
-
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	/* Cache a couple board values */
-	spin_lock_irqsave(&bd->bd_lock, flags);
-	state = bd->state;
-	ports = bd->nasync;
-	spin_unlock_irqrestore(&bd->bd_lock, flags);
-
-	/*
-	 * Do NOT allow the interrupt routine to read the intr registers
-	 * Until we release this lock.
-	 */
-	spin_lock_irqsave(&bd->bd_intr_lock, flags);
-
-	/*
-	 * If board is ready, parse deeper to see if there is anything to do.
-	 */
-	if ((state == BOARD_READY) && (ports > 0)) {
-
-		/* Loop on each port */
-		for (i = 0; i < ports; i++) {
-			ch = bd->channels[i];
-
-			/*
-			 * NOTE: Remember you CANNOT hold any channel
-			 * locks when calling input.
-			 * During input processing, its possible we
-			 * will call ld, which might do callbacks back
-			 * into us.
-			 */
-			dgnc_input(ch);
-
-			/*
-			 * Channel lock is grabbed and then released
-			 * inside this routine.
-			 */
-			cls_copy_data_from_queue_to_uart(ch);
-			dgnc_wakeup_writes(ch);
-
-			/*
-			 * Check carrier function.
-			 */
-			dgnc_carrier(ch);
-
-			/*
-			 * The timing check of turning off the break is done
-			 * inside clear_break()
-			 */
-			if (ch->ch_stop_sending_break)
-				cls_clear_break(ch, 0);
-		}
-	}
-
-	spin_unlock_irqrestore(&bd->bd_intr_lock, flags);
-
-}
-
-/*
- * cls_intr()
- *
- * Classic specific interrupt handler.
- */
-static irqreturn_t cls_intr(int irq, void *voidbrd)
-{
-	struct dgnc_board *brd = voidbrd;
-	uint i = 0;
-	unsigned char poll_reg;
-	unsigned long flags;
-
-	/*
-	 * Check to make sure it didn't receive interrupt with a null board
-	 * associated or a board pointer that wasn't ours.
-	 */
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return IRQ_NONE;
-
-	spin_lock_irqsave(&brd->bd_intr_lock, flags);
-
-	brd->intr_count++;
-
-	/*
-	 * Check the board's global interrupt offset to see if we
-	 * we actually do have an interrupt pending for us.
-	 */
-	poll_reg = readb(brd->re_map_membase + UART_CLASSIC_POLL_ADDR_OFFSET);
-
-	/* If 0, no interrupts pending */
-	if (!poll_reg) {
-		spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
-		return IRQ_NONE;
-	}
-
-	/* Parse each port to find out what caused the interrupt */
-	for (i = 0; i < brd->nasync; i++)
-		cls_parse_isr(brd, i);
-
-	/*
-	 * Schedule tasklet to more in-depth servicing at a better time.
-	 */
-	tasklet_schedule(&brd->helper_tasklet);
-
-	spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
-
-	return IRQ_HANDLED;
-}
-
-static void cls_disable_receiver(struct channel_t *ch)
-{
-	unsigned char tmp = readb(&ch->ch_cls_uart->ier);
-
-	tmp &= ~(UART_IER_RDI);
-	writeb(tmp, &ch->ch_cls_uart->ier);
-}
-
-static void cls_enable_receiver(struct channel_t *ch)
-{
-	unsigned char tmp = readb(&ch->ch_cls_uart->ier);
-
-	tmp |= (UART_IER_RDI);
-	writeb(tmp, &ch->ch_cls_uart->ier);
-}
-
-static void cls_copy_data_from_uart_to_queue(struct channel_t *ch)
-{
-	int qleft = 0;
-	unsigned char linestatus = 0;
-	unsigned char error_mask = 0;
-	ushort head;
-	ushort tail;
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* cache head and tail of queue */
-	head = ch->ch_r_head;
-	tail = ch->ch_r_tail;
-
-	/* Store how much space we have left in the queue */
-	qleft = (tail - head - 1);
-	if (qleft < 0)
-		qleft += RQUEUEMASK + 1;
-
-	/*
-	 * Create a mask to determine whether we should
-	 * insert the character (if any) into our queue.
-	 */
-	if (ch->ch_c_iflag & IGNBRK)
-		error_mask |= UART_LSR_BI;
-
-	while (1) {
-		linestatus = readb(&ch->ch_cls_uart->lsr);
-
-		if (!(linestatus & (UART_LSR_DR)))
-			break;
-
-		/*
-		 * Discard character if we are ignoring the error mask.
-		*/
-		if (linestatus & error_mask)  {
-			unsigned char discard;
-
-			linestatus = 0;
-			discard = readb(&ch->ch_cls_uart->txrx);
-			continue;
-		}
-
-		/*
-		 * If our queue is full, we have no choice but to drop some
-		 * data. The assumption is that HWFLOW or SWFLOW should have
-		 * stopped things way way before we got to this point.
-		 *
-		 * I decided that I wanted to ditch the oldest data first,
-		 * I hope thats okay with everyone? Yes? Good.
-		 */
-		while (qleft < 1) {
-			tail = (tail + 1) & RQUEUEMASK;
-			ch->ch_r_tail = tail;
-			ch->ch_err_overrun++;
-			qleft++;
-		}
-
-		ch->ch_equeue[head] = linestatus & (UART_LSR_BI | UART_LSR_PE
-								 | UART_LSR_FE);
-		ch->ch_rqueue[head] = readb(&ch->ch_cls_uart->txrx);
-
-		qleft--;
-
-		if (ch->ch_equeue[head] & UART_LSR_PE)
-			ch->ch_err_parity++;
-		if (ch->ch_equeue[head] & UART_LSR_BI)
-			ch->ch_err_break++;
-		if (ch->ch_equeue[head] & UART_LSR_FE)
-			ch->ch_err_frame++;
-
-		/* Add to, and flip head if needed */
-		head = (head + 1) & RQUEUEMASK;
-		ch->ch_rxcount++;
-	}
-
-	/*
-	 * Write new final heads to channel structure.
-	 */
-	ch->ch_r_head = head & RQUEUEMASK;
-	ch->ch_e_head = head & EQUEUEMASK;
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-/*
- * This function basically goes to sleep for secs, or until
- * it gets signalled that the port has fully drained.
- */
-static int cls_drain(struct tty_struct *tty, uint seconds)
-{
-	unsigned long flags;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -ENXIO;
-
-	un = (struct un_t *) tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return -ENXIO;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -ENXIO;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	un->un_flags |= UN_EMPTY;
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	/*
-	 * NOTE: Do something with time passed in.
-	 */
-
-	/* If ret is non-zero, user ctrl-c'ed us */
-
-	return wait_event_interruptible(un->un_flags_wait,
-					 ((un->un_flags & UN_EMPTY) == 0));
-}
-
-/* Channel lock MUST be held before calling this function! */
-static void cls_flush_uart_write(struct channel_t *ch)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT),
-						&ch->ch_cls_uart->isr_fcr);
-	udelay(10);
-
-	ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-}
-
-/* Channel lock MUST be held before calling this function! */
-static void cls_flush_uart_read(struct channel_t *ch)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * For complete POSIX compatibility, we should be purging the
-	 * read FIFO in the UART here.
-	 *
-	 * However, clearing the read FIFO (UART_FCR_CLEAR_RCVR) also
-	 * incorrectly flushes write data as well as just basically trashing the
-	 * FIFO.
-	 *
-	 * Presumably, this is a bug in this UART.
-	 */
-
-	udelay(10);
-}
-
-static void cls_copy_data_from_queue_to_uart(struct channel_t *ch)
-{
-	ushort head;
-	ushort tail;
-	int n;
-	int qlen;
-	uint len_written = 0;
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* No data to write to the UART */
-	if (ch->ch_w_tail == ch->ch_w_head)
-		goto exit_unlock;
-
-	/* If port is "stopped", don't send any data to the UART */
-	if ((ch->ch_flags & CH_FORCED_STOP) ||
-				 (ch->ch_flags & CH_BREAK_SENDING))
-		goto exit_unlock;
-
-	if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM)))
-		goto exit_unlock;
-
-	n = 32;
-
-	/* cache head and tail of queue */
-	head = ch->ch_w_head & WQUEUEMASK;
-	tail = ch->ch_w_tail & WQUEUEMASK;
-	qlen = (head - tail) & WQUEUEMASK;
-
-	/* Find minimum of the FIFO space, versus queue length */
-	n = min(n, qlen);
-
-	while (n > 0) {
-
-		/*
-		 * If RTS Toggle mode is on, turn on RTS now if not already set,
-		 * and make sure we get an event when the data transfer has
-		 * completed.
-		 */
-		if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) {
-			if (!(ch->ch_mostat & UART_MCR_RTS)) {
-				ch->ch_mostat |= (UART_MCR_RTS);
-				cls_assert_modem_signals(ch);
-			}
-			ch->ch_tun.un_flags |= (UN_EMPTY);
-		}
-
-		/*
-		 * If DTR Toggle mode is on, turn on DTR now if not already set,
-		 * and make sure we get an event when the data transfer has
-		 * completed.
-		 */
-		if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) {
-			if (!(ch->ch_mostat & UART_MCR_DTR)) {
-				ch->ch_mostat |= (UART_MCR_DTR);
-				cls_assert_modem_signals(ch);
-			}
-			ch->ch_tun.un_flags |= (UN_EMPTY);
-		}
-		writeb(ch->ch_wqueue[ch->ch_w_tail], &ch->ch_cls_uart->txrx);
-		ch->ch_w_tail++;
-		ch->ch_w_tail &= WQUEUEMASK;
-		ch->ch_txcount++;
-		len_written++;
-		n--;
-	}
-
-	if (len_written > 0)
-		ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-
-exit_unlock:
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-static void cls_parse_modem(struct channel_t *ch, unsigned char signals)
-{
-	unsigned char msignals = signals;
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * Do altpin switching. Altpin switches DCD and DSR.
-	 * This prolly breaks DSRPACE, so we should be more clever here.
-	 */
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	if (ch->ch_digi.digi_flags & DIGI_ALTPIN) {
-		unsigned char mswap = signals;
-
-		if (mswap & UART_MSR_DDCD) {
-			msignals &= ~UART_MSR_DDCD;
-			msignals |= UART_MSR_DDSR;
-		}
-		if (mswap & UART_MSR_DDSR) {
-			msignals &= ~UART_MSR_DDSR;
-			msignals |= UART_MSR_DDCD;
-		}
-		if (mswap & UART_MSR_DCD) {
-			msignals &= ~UART_MSR_DCD;
-			msignals |= UART_MSR_DSR;
-		}
-		if (mswap & UART_MSR_DSR) {
-			msignals &= ~UART_MSR_DSR;
-			msignals |= UART_MSR_DCD;
-		}
-	}
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	/*
-	 * Scrub off lower bits. They signify delta's, which I don't
-	 * care about
-	 */
-	signals &= 0xf0;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	if (msignals & UART_MSR_DCD)
-		ch->ch_mistat |= UART_MSR_DCD;
-	else
-		ch->ch_mistat &= ~UART_MSR_DCD;
-
-	if (msignals & UART_MSR_DSR)
-		ch->ch_mistat |= UART_MSR_DSR;
-	else
-		ch->ch_mistat &= ~UART_MSR_DSR;
-
-	if (msignals & UART_MSR_RI)
-		ch->ch_mistat |= UART_MSR_RI;
-	else
-		ch->ch_mistat &= ~UART_MSR_RI;
-
-	if (msignals & UART_MSR_CTS)
-		ch->ch_mistat |= UART_MSR_CTS;
-	else
-		ch->ch_mistat &= ~UART_MSR_CTS;
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-/* Make the UART raise any of the output signals we want up */
-static void cls_assert_modem_signals(struct channel_t *ch)
-{
-	unsigned char out;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	out = ch->ch_mostat;
-
-	if (ch->ch_flags & CH_LOOPBACK)
-		out |= UART_MCR_LOOP;
-
-	writeb(out, &ch->ch_cls_uart->mcr);
-
-	/* Give time for the UART to actually drop the signals */
-	udelay(10);
-}
-
-static void cls_send_start_character(struct channel_t *ch)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	if (ch->ch_startc != _POSIX_VDISABLE) {
-		ch->ch_xon_sends++;
-		writeb(ch->ch_startc, &ch->ch_cls_uart->txrx);
-	}
-}
-
-static void cls_send_stop_character(struct channel_t *ch)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	if (ch->ch_stopc != _POSIX_VDISABLE) {
-		ch->ch_xoff_sends++;
-		writeb(ch->ch_stopc, &ch->ch_cls_uart->txrx);
-	}
-}
-
-/* Inits UART */
-static void cls_uart_init(struct channel_t *ch)
-{
-	unsigned char lcrb = readb(&ch->ch_cls_uart->lcr);
-	unsigned char isr_fcr = 0;
-
-	writeb(0, &ch->ch_cls_uart->ier);
-
-	/*
-	 * The Enhanced Register Set may only be accessed when
-	 * the Line Control Register is set to 0xBFh.
-	 */
-	writeb(UART_EXAR654_ENHANCED_REGISTER_SET, &ch->ch_cls_uart->lcr);
-
-	isr_fcr = readb(&ch->ch_cls_uart->isr_fcr);
-
-	/* Turn on Enhanced/Extended controls */
-	isr_fcr |= (UART_EXAR654_EFR_ECB);
-
-	writeb(isr_fcr, &ch->ch_cls_uart->isr_fcr);
-
-	/* Write old LCR value back out, which turns enhanced access off */
-	writeb(lcrb, &ch->ch_cls_uart->lcr);
-
-	/* Clear out UART and FIFO */
-	readb(&ch->ch_cls_uart->txrx);
-
-	writeb((UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|UART_FCR_CLEAR_XMIT),
-						 &ch->ch_cls_uart->isr_fcr);
-	udelay(10);
-
-	ch->ch_flags |= (CH_FIFO_ENABLED | CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-
-	readb(&ch->ch_cls_uart->lsr);
-	readb(&ch->ch_cls_uart->msr);
-}
-
-/*
- * Turns off UART.
- */
-static void cls_uart_off(struct channel_t *ch)
-{
-	writeb(0, &ch->ch_cls_uart->ier);
-}
-
-/*
- * cls_get_uarts_bytes_left.
- * Returns 0 is nothing left in the FIFO, returns 1 otherwise.
- *
- * The channel lock MUST be held by the calling function.
- */
-static uint cls_get_uart_bytes_left(struct channel_t *ch)
-{
-	unsigned char left = 0;
-	unsigned char lsr = 0;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-
-	lsr = readb(&ch->ch_cls_uart->lsr);
-
-	/* Determine whether the Transmitter is empty or not */
-	if (!(lsr & UART_LSR_TEMT)) {
-		if (ch->ch_flags & CH_TX_FIFO_EMPTY)
-			tasklet_schedule(&ch->ch_bd->helper_tasklet);
-		left = 1;
-	} else {
-		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		left = 0;
-	}
-
-	return left;
-}
-
-/*
- * cls_send_break.
- * Starts sending a break thru the UART.
- *
- * The channel lock MUST be held by the calling function.
- */
-static void cls_send_break(struct channel_t *ch, int msecs)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * If we receive a time of 0, this means turn off the break.
-	 */
-	if (msecs == 0) {
-		/* Turn break off, and unset some variables */
-		if (ch->ch_flags & CH_BREAK_SENDING) {
-			unsigned char temp = readb(&ch->ch_cls_uart->lcr);
-
-			writeb((temp & ~UART_LCR_SBC), &ch->ch_cls_uart->lcr);
-			ch->ch_flags &= ~(CH_BREAK_SENDING);
-			ch->ch_stop_sending_break = 0;
-		}
-		return;
-	}
-
-	/*
-	 * Set the time we should stop sending the break.
-	 * If we are already sending a break, toss away the existing
-	 * time to stop, and use this new value instead.
-	 */
-	ch->ch_stop_sending_break = jiffies + dgnc_jiffies_from_ms(msecs);
-
-	/* Tell the UART to start sending the break */
-	if (!(ch->ch_flags & CH_BREAK_SENDING)) {
-		unsigned char temp = readb(&ch->ch_cls_uart->lcr);
-
-		writeb((temp | UART_LCR_SBC), &ch->ch_cls_uart->lcr);
-		ch->ch_flags |= (CH_BREAK_SENDING);
-	}
-}
-
-/*
- * cls_send_immediate_char.
- * Sends a specific character as soon as possible to the UART,
- * jumping over any bytes that might be in the write queue.
- *
- * The channel lock MUST be held by the calling function.
- */
-static void cls_send_immediate_char(struct channel_t *ch, unsigned char c)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	writeb(c, &ch->ch_cls_uart->txrx);
-}
-
-static void cls_vpd(struct dgnc_board *brd)
-{
-	ulong           vpdbase;        /* Start of io base of the card */
-	u8 __iomem           *re_map_vpdbase;/* Remapped memory of the card */
-	int i = 0;
-
-	vpdbase = pci_resource_start(brd->pdev, 3);
-
-	/* No VPD */
-	if (!vpdbase)
-		return;
-
-	re_map_vpdbase = ioremap(vpdbase, 0x400);
-
-	if (!re_map_vpdbase)
-		return;
-
-	/* Store the VPD into our buffer */
-	for (i = 0; i < 0x40; i++) {
-		brd->vpd[i] = readb(re_map_vpdbase + i);
-		pr_info("%x ", brd->vpd[i]);
-	}
-	pr_info("\n");
-
-	if (re_map_vpdbase)
-		iounmap(re_map_vpdbase);
-}
diff --git a/drivers/staging/dgnc/dgnc_cls.h b/drivers/staging/dgnc/dgnc_cls.h
deleted file mode 100644
index 2597e36d38c4..000000000000
--- a/drivers/staging/dgnc/dgnc_cls.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef __DGNC_CLS_H
-#define __DGNC_CLS_H
-
-/************************************************************************
- * Per channel/port Classic UART structure				*
- ************************************************************************
- *		Base Structure Entries Usage Meanings to Host		*
- *									*
- *	W = read write		R = read only				*
- *			U = Unused.					*
- ************************************************************************/
-
-/*
- * txrx    : WR RHR/THR - Holding reg
- * ier     : WR IER - Interrupt Enable Reg
- * isr_fcr : WR ISR/FCR - Interrupt Status Reg/Fifo Control Reg
- * lcr     : WR LCR - Line Control Reg
- * mcr     : WR MCR - Modem Control Reg
- * lsr     : WR LSR - Line Status Reg
- * msr     : WR MSG - Modem Status Reg
- * spr     : WR SPR - Scratch pad Reg
- */
-struct cls_uart_struct {
-	u8 txrx;
-	u8 ier;
-	u8 isr_fcr;
-	u8 lcr;
-	u8 mcr;
-	u8 lsr;
-	u8 msr;
-	u8 spr;
-};
-
-/* Where to read the interrupt register (8bits) */
-#define	UART_CLASSIC_POLL_ADDR_OFFSET	0x40
-
-#define UART_EXAR654_ENHANCED_REGISTER_SET 0xBF
-
-#define UART_16654_FCR_TXTRIGGER_16	0x10
-#define UART_16654_FCR_RXTRIGGER_16	0x40
-#define UART_16654_FCR_RXTRIGGER_56	0x80
-
-/* Received CTS/RTS change of state */
-#define UART_IIR_CTSRTS			0x20
-
-/* Receiver data TIMEOUT */
-#define UART_IIR_RDI_TIMEOUT		0x0C
-
-/*
- * These are the EXTENDED definitions for the Exar 654's Interrupt
- * Enable Register.
- */
-#define UART_EXAR654_EFR_ECB      0x10    /* Enhanced control bit */
-#define UART_EXAR654_EFR_IXON     0x2     /* Receiver compares Xon1/Xoff1 */
-#define UART_EXAR654_EFR_IXOFF    0x8     /* Transmit Xon1/Xoff1 */
-#define UART_EXAR654_EFR_RTSDTR   0x40    /* Auto RTS/DTR Flow Control Enable */
-#define UART_EXAR654_EFR_CTSDSR   0x80    /* Auto CTS/DSR Flow COntrol Enable */
-#define UART_EXAR654_IER_XOFF     0x20    /* Xoff Interrupt Enable */
-#define UART_EXAR654_IER_RTSDTR   0x40    /* Output Interrupt Enable */
-#define UART_EXAR654_IER_CTSDSR   0x80    /* Input Interrupt Enable */
-
-/*
- * Our Global Variables
- */
-extern struct board_ops dgnc_cls_ops;
-
-#endif
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
deleted file mode 100644
index 7546aff65002..000000000000
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ /dev/null
@@ -1,720 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include "dgnc_driver.h"
-#include "dgnc_pci.h"
-#include "dgnc_mgmt.h"
-#include "dgnc_tty.h"
-#include "dgnc_cls.h"
-#include "dgnc_neo.h"
-#include "dgnc_sysfs.h"
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Digi International, http://www.digi.com");
-MODULE_DESCRIPTION("Driver for the Digi International Neo and Classic PCI based product line");
-MODULE_SUPPORTED_DEVICE("dgnc");
-
-/**************************************************************************
- *
- * protos for this file
- *
- */
-static int		dgnc_start(void);
-static int		dgnc_finalize_board_init(struct dgnc_board *brd);
-static void		dgnc_init_globals(void);
-static int		dgnc_found_board(struct pci_dev *pdev, int id);
-static void		dgnc_cleanup_board(struct dgnc_board *brd);
-static void		dgnc_poll_handler(ulong dummy);
-static int		dgnc_init_one(struct pci_dev *pdev,
-				      const struct pci_device_id *ent);
-static void		dgnc_do_remap(struct dgnc_board *brd);
-
-/*
- * File operations permitted on Control/Management major.
- */
-static const struct file_operations dgnc_BoardFops = {
-	.owner		=	THIS_MODULE,
-	.unlocked_ioctl =	dgnc_mgmt_ioctl,
-	.open		=	dgnc_mgmt_open,
-	.release	=	dgnc_mgmt_close
-};
-
-
-/*
- * Globals
- */
-uint			dgnc_NumBoards;
-struct dgnc_board		*dgnc_Board[MAXBOARDS];
-DEFINE_SPINLOCK(dgnc_global_lock);
-uint			dgnc_Major;
-int			dgnc_poll_tick = 20;	/* Poll interval - 20 ms */
-
-/*
- * Static vars.
- */
-static struct class *dgnc_class;
-
-/*
- * Poller stuff
- */
-static DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */
-static ulong		dgnc_poll_time; /* Time of next poll */
-static uint		dgnc_poll_stop; /* Used to tell poller to stop */
-static struct timer_list dgnc_poll_timer;
-
-
-static const struct pci_device_id dgnc_pci_tbl[] = {
-	{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_DID),     .driver_data = 0},
-	{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_422_DID), .driver_data = 1},
-	{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_8_DID),     .driver_data = 2},
-	{PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_8_422_DID), .driver_data = 3},
-	{0,}
-};
-MODULE_DEVICE_TABLE(pci, dgnc_pci_tbl);
-
-struct board_id {
-	unsigned char *name;
-	uint maxports;
-	unsigned int is_pci_express;
-};
-
-static struct board_id dgnc_Ids[] = {
-	{	PCI_DEVICE_CLASSIC_4_PCI_NAME,		4,	0	},
-	{	PCI_DEVICE_CLASSIC_4_422_PCI_NAME,	4,	0	},
-	{	PCI_DEVICE_CLASSIC_8_PCI_NAME,		8,	0	},
-	{	PCI_DEVICE_CLASSIC_8_422_PCI_NAME,	8,	0	},
-	{	PCI_DEVICE_NEO_4_PCI_NAME,		4,	0	},
-	{	PCI_DEVICE_NEO_8_PCI_NAME,		8,	0	},
-	{	PCI_DEVICE_NEO_2DB9_PCI_NAME,		2,	0	},
-	{	PCI_DEVICE_NEO_2DB9PRI_PCI_NAME,	2,	0	},
-	{	PCI_DEVICE_NEO_2RJ45_PCI_NAME,		2,	0	},
-	{	PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME,	2,	0	},
-	{	PCI_DEVICE_NEO_1_422_PCI_NAME,		1,	0	},
-	{	PCI_DEVICE_NEO_1_422_485_PCI_NAME,	1,	0	},
-	{	PCI_DEVICE_NEO_2_422_485_PCI_NAME,	2,	0	},
-	{	PCI_DEVICE_NEO_EXPRESS_8_PCI_NAME,	8,	1	},
-	{	PCI_DEVICE_NEO_EXPRESS_4_PCI_NAME,	4,	1	},
-	{	PCI_DEVICE_NEO_EXPRESS_4RJ45_PCI_NAME,	4,	1	},
-	{	PCI_DEVICE_NEO_EXPRESS_8RJ45_PCI_NAME,	8,	1	},
-	{	NULL,					0,	0	}
-};
-
-static struct pci_driver dgnc_driver = {
-	.name		= "dgnc",
-	.probe		= dgnc_init_one,
-	.id_table       = dgnc_pci_tbl,
-};
-
-/************************************************************************
- *
- * Driver load/unload functions
- *
- ************************************************************************/
-
-/*
- * dgnc_cleanup_module()
- *
- * Module unload.  This is where it all ends.
- */
-static void dgnc_cleanup_module(void)
-{
-	int i;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dgnc_poll_lock, flags);
-	dgnc_poll_stop = 1;
-	spin_unlock_irqrestore(&dgnc_poll_lock, flags);
-
-	/* Turn off poller right away. */
-	del_timer_sync(&dgnc_poll_timer);
-
-	dgnc_remove_driver_sysfiles(&dgnc_driver);
-
-	device_destroy(dgnc_class, MKDEV(dgnc_Major, 0));
-	class_destroy(dgnc_class);
-	unregister_chrdev(dgnc_Major, "dgnc");
-
-	for (i = 0; i < dgnc_NumBoards; ++i) {
-		dgnc_remove_ports_sysfiles(dgnc_Board[i]);
-		dgnc_tty_uninit(dgnc_Board[i]);
-		dgnc_cleanup_board(dgnc_Board[i]);
-	}
-
-	dgnc_tty_post_uninit();
-
-	if (dgnc_NumBoards)
-		pci_unregister_driver(&dgnc_driver);
-}
-
-/*
- * init_module()
- *
- * Module load.  This is where it all starts.
- */
-static int __init dgnc_init_module(void)
-{
-	int rc = 0;
-
-	/*
-	 * Initialize global stuff
-	 */
-	rc = dgnc_start();
-
-	if (rc < 0)
-		return rc;
-
-	/*
-	 * Find and configure all the cards
-	 */
-	rc = pci_register_driver(&dgnc_driver);
-
-	/*
-	 * If something went wrong in the scan, bail out of driver.
-	 */
-	if (rc < 0) {
-		/* Only unregister if it was actually registered. */
-		if (dgnc_NumBoards)
-			pci_unregister_driver(&dgnc_driver);
-		else
-			pr_warn("WARNING: dgnc driver load failed.  No Digi Neo or Classic boards found.\n");
-
-		dgnc_cleanup_module();
-	} else {
-		dgnc_create_driver_sysfiles(&dgnc_driver);
-	}
-
-	return rc;
-}
-
-module_init(dgnc_init_module);
-module_exit(dgnc_cleanup_module);
-
-/*
- * Start of driver.
- */
-static int dgnc_start(void)
-{
-	int rc = 0;
-	unsigned long flags;
-	struct device *dev;
-
-	/* make sure that the globals are init'd before we do anything else */
-	dgnc_init_globals();
-
-	/*
-	 * Register our base character device into the kernel.
-	 * This allows the download daemon to connect to the downld device
-	 * before any of the boards are init'ed.
-	 *
-	 * Register management/dpa devices
-	 */
-	rc = register_chrdev(0, "dgnc", &dgnc_BoardFops);
-	if (rc < 0) {
-		pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc);
-		return rc;
-	}
-	dgnc_Major = rc;
-
-	dgnc_class = class_create(THIS_MODULE, "dgnc_mgmt");
-	if (IS_ERR(dgnc_class)) {
-		rc = PTR_ERR(dgnc_class);
-		pr_err(DRVSTR ": Can't create dgnc_mgmt class (%d)\n", rc);
-		goto failed_class;
-	}
-
-	dev = device_create(dgnc_class, NULL,
-			MKDEV(dgnc_Major, 0),
-			NULL, "dgnc_mgmt");
-	if (IS_ERR(dev)) {
-		rc = PTR_ERR(dev);
-		pr_err(DRVSTR ": Can't create device (%d)\n", rc);
-		goto failed_device;
-	}
-
-	/*
-	 * Init any global tty stuff.
-	 */
-	rc = dgnc_tty_preinit();
-
-	if (rc < 0) {
-		pr_err(DRVSTR ": tty preinit - not enough memory (%d)\n", rc);
-		goto failed_tty;
-	}
-
-	/* Start the poller */
-	spin_lock_irqsave(&dgnc_poll_lock, flags);
-	setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
-	dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
-	dgnc_poll_timer.expires = dgnc_poll_time;
-	spin_unlock_irqrestore(&dgnc_poll_lock, flags);
-
-	add_timer(&dgnc_poll_timer);
-
-	return 0;
-
-failed_tty:
-	device_destroy(dgnc_class, MKDEV(dgnc_Major, 0));
-failed_device:
-	class_destroy(dgnc_class);
-failed_class:
-	unregister_chrdev(dgnc_Major, "dgnc");
-	return rc;
-}
-
-/* returns count (>= 0), or negative on error */
-static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	int rc;
-
-	/* wake up and enable device */
-	rc = pci_enable_device(pdev);
-
-	if (rc < 0) {
-		rc = -EIO;
-	} else {
-		rc = dgnc_found_board(pdev, ent->driver_data);
-		if (rc == 0)
-			dgnc_NumBoards++;
-	}
-	return rc;
-}
-
-/*
- * dgnc_cleanup_board()
- *
- * Free all the memory associated with a board
- */
-static void dgnc_cleanup_board(struct dgnc_board *brd)
-{
-	int i = 0;
-
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	switch (brd->device) {
-	case PCI_DEVICE_CLASSIC_4_DID:
-	case PCI_DEVICE_CLASSIC_8_DID:
-	case PCI_DEVICE_CLASSIC_4_422_DID:
-	case PCI_DEVICE_CLASSIC_8_422_DID:
-
-		/* Tell card not to interrupt anymore. */
-		outb(0, brd->iobase + 0x4c);
-		break;
-
-	default:
-		break;
-	}
-
-	if (brd->irq)
-		free_irq(brd->irq, brd);
-
-	tasklet_kill(&brd->helper_tasklet);
-
-	if (brd->re_map_membase) {
-		iounmap(brd->re_map_membase);
-		brd->re_map_membase = NULL;
-	}
-
-	if (brd->msgbuf_head) {
-		unsigned long flags;
-
-		spin_lock_irqsave(&dgnc_global_lock, flags);
-		brd->msgbuf = NULL;
-		dev_dbg(&brd->pdev->dev, "%s\n", brd->msgbuf_head);
-		kfree(brd->msgbuf_head);
-		brd->msgbuf_head = NULL;
-		spin_unlock_irqrestore(&dgnc_global_lock, flags);
-	}
-
-	/* Free all allocated channels structs */
-	for (i = 0; i < MAXPORTS ; i++) {
-		if (brd->channels[i]) {
-			kfree(brd->channels[i]->ch_rqueue);
-			kfree(brd->channels[i]->ch_equeue);
-			kfree(brd->channels[i]->ch_wqueue);
-			kfree(brd->channels[i]);
-			brd->channels[i] = NULL;
-		}
-	}
-
-
-	dgnc_Board[brd->boardnum] = NULL;
-
-	kfree(brd);
-}
-
-
-/*
- * dgnc_found_board()
- *
- * A board has been found, init it.
- */
-static int dgnc_found_board(struct pci_dev *pdev, int id)
-{
-	struct dgnc_board *brd;
-	unsigned int pci_irq;
-	int i = 0;
-	int rc = 0;
-	unsigned long flags;
-
-	/* get the board structure and prep it */
-	dgnc_Board[dgnc_NumBoards] = kzalloc(sizeof(*brd), GFP_KERNEL);
-	brd = dgnc_Board[dgnc_NumBoards];
-
-	if (!brd)
-		return -ENOMEM;
-
-	/* make a temporary message buffer for the boot messages */
-	brd->msgbuf_head = kcalloc(8192, sizeof(u8), GFP_KERNEL);
-	brd->msgbuf = brd->msgbuf_head;
-
-	if (!brd->msgbuf) {
-		kfree(brd);
-		return -ENOMEM;
-	}
-
-	/* store the info for the board we've found */
-	brd->magic = DGNC_BOARD_MAGIC;
-	brd->boardnum = dgnc_NumBoards;
-	brd->vendor = dgnc_pci_tbl[id].vendor;
-	brd->device = dgnc_pci_tbl[id].device;
-	brd->pdev = pdev;
-	brd->pci_bus = pdev->bus->number;
-	brd->pci_slot = PCI_SLOT(pdev->devfn);
-	brd->name = dgnc_Ids[id].name;
-	brd->maxports = dgnc_Ids[id].maxports;
-	if (dgnc_Ids[i].is_pci_express)
-		brd->bd_flags |= BD_IS_PCI_EXPRESS;
-	brd->dpastatus = BD_NOFEP;
-	init_waitqueue_head(&brd->state_wait);
-
-	spin_lock_init(&brd->bd_lock);
-	spin_lock_init(&brd->bd_intr_lock);
-
-	brd->state		= BOARD_FOUND;
-
-	for (i = 0; i < MAXPORTS; i++)
-		brd->channels[i] = NULL;
-
-	/* store which card & revision we have */
-	pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &brd->subvendor);
-	pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &brd->subdevice);
-	pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev);
-
-	pci_irq = pdev->irq;
-	brd->irq = pci_irq;
-
-
-	switch (brd->device) {
-
-	case PCI_DEVICE_CLASSIC_4_DID:
-	case PCI_DEVICE_CLASSIC_8_DID:
-	case PCI_DEVICE_CLASSIC_4_422_DID:
-	case PCI_DEVICE_CLASSIC_8_422_DID:
-
-		brd->dpatype = T_CLASSIC | T_PCIBUS;
-
-		/*
-		 * For PCI ClassicBoards
-		 * PCI Local Address (i.e. "resource" number) space
-		 * 0	PLX Memory Mapped Config
-		 * 1	PLX I/O Mapped Config
-		 * 2	I/O Mapped UARTs and Status
-		 * 3	Memory Mapped VPD
-		 * 4	Memory Mapped UARTs and Status
-		 */
-
-
-		/* get the PCI Base Address Registers */
-		brd->membase = pci_resource_start(pdev, 4);
-
-		if (!brd->membase) {
-			dev_err(&brd->pdev->dev,
-				"Card has no PCI IO resources, failing.\n");
-			return -ENODEV;
-		}
-
-		brd->membase_end = pci_resource_end(pdev, 4);
-
-		if (brd->membase & 1)
-			brd->membase &= ~3;
-		else
-			brd->membase &= ~15;
-
-		brd->iobase	= pci_resource_start(pdev, 1);
-		brd->iobase_end = pci_resource_end(pdev, 1);
-		brd->iobase	= ((unsigned int) (brd->iobase)) & 0xFFFE;
-
-		/* Assign the board_ops struct */
-		brd->bd_ops = &dgnc_cls_ops;
-
-		brd->bd_uart_offset = 0x8;
-		brd->bd_dividend = 921600;
-
-		dgnc_do_remap(brd);
-
-		/* Get and store the board VPD, if it exists */
-		brd->bd_ops->vpd(brd);
-
-		/*
-		 * Enable Local Interrupt 1		  (0x1),
-		 * Local Interrupt 1 Polarity Active high (0x2),
-		 * Enable PCI interrupt			  (0x40)
-		 */
-		outb(0x43, brd->iobase + 0x4c);
-
-		break;
-
-
-	case PCI_DEVICE_NEO_4_DID:
-	case PCI_DEVICE_NEO_8_DID:
-	case PCI_DEVICE_NEO_2DB9_DID:
-	case PCI_DEVICE_NEO_2DB9PRI_DID:
-	case PCI_DEVICE_NEO_2RJ45_DID:
-	case PCI_DEVICE_NEO_2RJ45PRI_DID:
-	case PCI_DEVICE_NEO_1_422_DID:
-	case PCI_DEVICE_NEO_1_422_485_DID:
-	case PCI_DEVICE_NEO_2_422_485_DID:
-	case PCI_DEVICE_NEO_EXPRESS_8_DID:
-	case PCI_DEVICE_NEO_EXPRESS_4_DID:
-	case PCI_DEVICE_NEO_EXPRESS_4RJ45_DID:
-	case PCI_DEVICE_NEO_EXPRESS_8RJ45_DID:
-
-		/*
-		 * This chip is set up 100% when we get to it.
-		 * No need to enable global interrupts or anything.
-		 */
-		if (brd->bd_flags & BD_IS_PCI_EXPRESS)
-			brd->dpatype = T_NEO_EXPRESS | T_PCIBUS;
-		else
-			brd->dpatype = T_NEO | T_PCIBUS;
-
-		/* get the PCI Base Address Registers */
-		brd->membase     = pci_resource_start(pdev, 0);
-		brd->membase_end = pci_resource_end(pdev, 0);
-
-		if (brd->membase & 1)
-			brd->membase &= ~3;
-		else
-			brd->membase &= ~15;
-
-		/* Assign the board_ops struct */
-		brd->bd_ops = &dgnc_neo_ops;
-
-		brd->bd_uart_offset = 0x200;
-		brd->bd_dividend = 921600;
-
-		dgnc_do_remap(brd);
-
-		if (brd->re_map_membase) {
-
-			/* Read and store the dvid after remapping */
-			brd->dvid = readb(brd->re_map_membase + 0x8D);
-
-			/* Get and store the board VPD, if it exists */
-			brd->bd_ops->vpd(brd);
-		}
-		break;
-
-	default:
-		dev_err(&brd->pdev->dev,
-			"Didn't find any compatible Neo/Classic PCI boards.\n");
-		return -ENXIO;
-
-	}
-
-	/*
-	 * Do tty device initialization.
-	 */
-
-	rc = dgnc_tty_register(brd);
-	if (rc < 0) {
-		pr_err(DRVSTR ": Can't register tty devices (%d)\n", rc);
-		goto failed;
-	}
-
-	rc = dgnc_finalize_board_init(brd);
-	if (rc < 0) {
-		pr_err(DRVSTR ": Can't finalize board init (%d)\n", rc);
-		goto failed;
-	}
-
-	rc = dgnc_tty_init(brd);
-	if (rc < 0) {
-		pr_err(DRVSTR ": Can't init tty devices (%d)\n", rc);
-		goto failed;
-	}
-
-	brd->state = BOARD_READY;
-	brd->dpastatus = BD_RUNNING;
-
-	dgnc_create_ports_sysfiles(brd);
-
-	/* init our poll helper tasklet */
-	tasklet_init(&brd->helper_tasklet,
-		     brd->bd_ops->tasklet,
-		     (unsigned long) brd);
-
-	spin_lock_irqsave(&dgnc_global_lock, flags);
-	brd->msgbuf = NULL;
-	dev_dbg(&brd->pdev->dev, "%s\n", brd->msgbuf_head);
-	kfree(brd->msgbuf_head);
-	brd->msgbuf_head = NULL;
-	spin_unlock_irqrestore(&dgnc_global_lock, flags);
-
-	wake_up_interruptible(&brd->state_wait);
-
-	return 0;
-
-failed:
-	dgnc_tty_uninit(brd);
-	brd->state = BOARD_FAILED;
-	brd->dpastatus = BD_NOFEP;
-
-	return -ENXIO;
-
-}
-
-
-static int dgnc_finalize_board_init(struct dgnc_board *brd)
-{
-	int rc = 0;
-
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return -ENODEV;
-
-	if (brd->irq) {
-		rc = request_irq(brd->irq, brd->bd_ops->intr,
-				 IRQF_SHARED, "DGNC", brd);
-
-		if (rc) {
-			dev_err(&brd->pdev->dev,
-				"Failed to hook IRQ %d\n", brd->irq);
-			brd->state = BOARD_FAILED;
-			brd->dpastatus = BD_NOFEP;
-			rc = -ENODEV;
-		}
-	}
-	return rc;
-}
-
-/*
- * Remap PCI memory.
- */
-static void dgnc_do_remap(struct dgnc_board *brd)
-{
-
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	brd->re_map_membase = ioremap(brd->membase, 0x1000);
-}
-
-
-/*****************************************************************************
-*
-* Function:
-*
-*    dgnc_poll_handler
-*
-* Author:
-*
-*    Scott H Kilau
-*
-* Parameters:
-*
-*    dummy -- ignored
-*
-* Return Values:
-*
-*    none
-*
-* Description:
-*
-*    As each timer expires, it determines (a) whether the "transmit"
-*    waiter needs to be woken up, and (b) whether the poller needs to
-*    be rescheduled.
-*
-******************************************************************************/
-
-static void dgnc_poll_handler(ulong dummy)
-{
-	struct dgnc_board *brd;
-	unsigned long flags;
-	int i;
-	unsigned long new_time;
-
-	/* Go thru each board, kicking off a tasklet for each if needed */
-	for (i = 0; i < dgnc_NumBoards; i++) {
-		brd = dgnc_Board[i];
-
-		spin_lock_irqsave(&brd->bd_lock, flags);
-
-		/* If board is in a failed state don't schedule a tasklet */
-		if (brd->state == BOARD_FAILED) {
-			spin_unlock_irqrestore(&brd->bd_lock, flags);
-			continue;
-		}
-
-		/* Schedule a poll helper task */
-		tasklet_schedule(&brd->helper_tasklet);
-
-		spin_unlock_irqrestore(&brd->bd_lock, flags);
-	}
-
-	/*
-	 * Schedule ourself back at the nominal wakeup interval.
-	 */
-	spin_lock_irqsave(&dgnc_poll_lock, flags);
-	dgnc_poll_time += dgnc_jiffies_from_ms(dgnc_poll_tick);
-
-	new_time = dgnc_poll_time - jiffies;
-
-	if ((ulong) new_time >= 2 * dgnc_poll_tick)
-		dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
-
-	setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
-	dgnc_poll_timer.expires = dgnc_poll_time;
-	spin_unlock_irqrestore(&dgnc_poll_lock, flags);
-
-	if (!dgnc_poll_stop)
-		add_timer(&dgnc_poll_timer);
-}
-
-/*
- * dgnc_init_globals()
- *
- * This is where we initialize the globals from the static insmod
- * configuration variables.  These are declared near the head of
- * this file.
- */
-static void dgnc_init_globals(void)
-{
-	int i = 0;
-
-	dgnc_NumBoards		= 0;
-
-	for (i = 0; i < MAXBOARDS; i++)
-		dgnc_Board[i] = NULL;
-
-	init_timer(&dgnc_poll_timer);
-}
-
diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
deleted file mode 100644
index 06ece5151fe4..000000000000
--- a/drivers/staging/dgnc/dgnc_driver.h
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *      Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
- *************************************************************************
- *
- * Driver includes
- *
- *************************************************************************/
-
-#ifndef __DGNC_DRIVER_H
-#define __DGNC_DRIVER_H
-
-#include <linux/types.h>
-#include <linux/tty.h>
-#include <linux/interrupt.h>
-
-#include "digi.h"		/* Digi specific ioctl header */
-#include "dgnc_sysfs.h"		/* Support for SYSFS */
-
-/*************************************************************************
- *
- * Driver defines
- *
- *************************************************************************/
-
-/* Driver identification and error statments */
-#define	PROCSTR		"dgnc"			/* /proc entries	 */
-#define	DEVSTR		"/dev/dg/dgnc"		/* /dev entries		 */
-#define	DRVSTR		"dgnc"			/* Driver name string	 */
-#define	DG_PART		"40002369_F"		/* RPM part number	 */
-
-#define TRC_TO_CONSOLE 1
-
-/* Number of boards we support at once. */
-#define	MAXBOARDS	20
-#define	MAXPORTS	8
-#define MAXTTYNAMELEN	200
-
-/* Our 3 magic numbers for our board, channel and unit structs */
-#define DGNC_BOARD_MAGIC	0x5c6df104
-#define DGNC_CHANNEL_MAGIC	0x6c6df104
-#define DGNC_UNIT_MAGIC		0x7c6df104
-
-/* Serial port types */
-#define DGNC_SERIAL		0
-#define DGNC_PRINT		1
-
-#define	SERIAL_TYPE_NORMAL	1
-
-#define PORT_NUM(dev)	((dev) & 0x7f)
-#define IS_PRINT(dev)	(((dev) & 0xff) >= 0x80)
-
-/* MAX number of stop characters we will send when our read queue is getting full */
-#define MAX_STOPS_SENT 5
-
-/* 4 extra for alignment play space */
-#define WRITEBUFLEN		((4096) + 4)
-
-#define dgnc_jiffies_from_ms(a) (((a) * HZ) / 1000)
-
-/*
- * Define a local default termios struct. All ports will be created
- * with this termios initially.  This is the same structure that is defined
- * as the default in tty_io.c with the same settings overridden as in serial.c
- *
- * In short, this should match the internal serial ports' defaults.
- */
-#define	DEFAULT_IFLAGS	(ICRNL | IXON)
-#define	DEFAULT_OFLAGS	(OPOST | ONLCR)
-#define	DEFAULT_CFLAGS	(B9600 | CS8 | CREAD | HUPCL | CLOCAL)
-#define	DEFAULT_LFLAGS	(ISIG | ICANON | ECHO | ECHOE | ECHOK | \
-			ECHOCTL | ECHOKE | IEXTEN)
-
-#ifndef _POSIX_VDISABLE
-#define   _POSIX_VDISABLE '\0'
-#endif
-
-
-/*
- * All the possible states the driver can be while being loaded.
- */
-enum {
-	DRIVER_INITIALIZED = 0,
-	DRIVER_READY
-};
-
-/*
- * All the possible states the board can be while booting up.
- */
-enum {
-	BOARD_FAILED = 0,
-	BOARD_FOUND,
-	BOARD_READY
-};
-
-
-/*************************************************************************
- *
- * Structures and closely related defines.
- *
- *************************************************************************/
-
-struct dgnc_board;
-struct channel_t;
-
-/************************************************************************
- * Per board operations structure				       *
- ************************************************************************/
-struct board_ops {
-	void (*tasklet)(unsigned long data);
-	irqreturn_t (*intr)(int irq, void *voidbrd);
-	void (*uart_init)(struct channel_t *ch);
-	void (*uart_off)(struct channel_t *ch);
-	int  (*drain)(struct tty_struct *tty, uint seconds);
-	void (*param)(struct tty_struct *tty);
-	void (*vpd)(struct dgnc_board *brd);
-	void (*assert_modem_signals)(struct channel_t *ch);
-	void (*flush_uart_write)(struct channel_t *ch);
-	void (*flush_uart_read)(struct channel_t *ch);
-	void (*disable_receiver)(struct channel_t *ch);
-	void (*enable_receiver)(struct channel_t *ch);
-	void (*send_break)(struct channel_t *ch, int);
-	void (*send_start_character)(struct channel_t *ch);
-	void (*send_stop_character)(struct channel_t *ch);
-	void (*copy_data_from_queue_to_uart)(struct channel_t *ch);
-	uint (*get_uart_bytes_left)(struct channel_t *ch);
-	void (*send_immediate_char)(struct channel_t *ch, unsigned char);
-};
-
-/************************************************************************
- * Device flag definitions for bd_flags.
- ************************************************************************/
-#define BD_IS_PCI_EXPRESS     0x0001	  /* Is a PCI Express board */
-
-
-/*
- *	Per-board information
- */
-struct dgnc_board {
-	int		magic;		/* Board Magic number.  */
-	int		boardnum;	/* Board number: 0-32 */
-
-	int		type;		/* Type of board */
-	char		*name;		/* Product Name */
-	struct pci_dev	*pdev;		/* Pointer to the pci_dev struct */
-	unsigned long	bd_flags;	/* Board flags */
-	u16		vendor;		/* PCI vendor ID */
-	u16		device;		/* PCI device ID */
-	u16		subvendor;	/* PCI subsystem vendor ID */
-	u16		subdevice;	/* PCI subsystem device ID */
-	unsigned char	rev;		/* PCI revision ID */
-	uint		pci_bus;	/* PCI bus value */
-	uint		pci_slot;	/* PCI slot value */
-	uint		maxports;	/* MAX ports this board can handle */
-	unsigned char	dvid;		/* Board specific device id */
-	unsigned char	vpd[128];	/* VPD of board, if found */
-	unsigned char	serial_num[20];	/* Serial number of board, if found in VPD */
-
-	spinlock_t	bd_lock;	/* Used to protect board */
-
-	spinlock_t	bd_intr_lock;	/* Used to protect the poller tasklet and
-					 * the interrupt routine from each other.
-					 */
-
-	uint		state;		/* State of card. */
-	wait_queue_head_t state_wait;	/* Place to sleep on for state change */
-
-	struct		tasklet_struct helper_tasklet; /* Poll helper tasklet */
-
-	uint		nasync;		/* Number of ports on card */
-
-	uint		irq;		/* Interrupt request number */
-	ulong		intr_count;	/* Count of interrupts */
-	ulong		intr_modem;	/* Count of interrupts */
-	ulong		intr_tx;	/* Count of interrupts */
-	ulong		intr_rx;	/* Count of interrupts */
-
-	ulong		membase;	/* Start of base memory of the card */
-	ulong		membase_end;	/* End of base memory of the card */
-
-	u8 __iomem		*re_map_membase;/* Remapped memory of the card */
-
-	ulong		iobase;		/* Start of io base of the card */
-	ulong		iobase_end;	/* End of io base of the card */
-
-	uint		bd_uart_offset;	/* Space between each UART */
-
-	struct channel_t *channels[MAXPORTS]; /* array of pointers to our channels. */
-
-	struct tty_driver	SerialDriver;
-	char		SerialName[200];
-	struct tty_driver	PrintDriver;
-	char		PrintName[200];
-
-	bool		dgnc_Major_Serial_Registered;
-	bool		dgnc_Major_TransparentPrint_Registered;
-
-	uint		dgnc_Serial_Major;
-	uint		dgnc_TransparentPrint_Major;
-
-	uint		TtyRefCnt;
-
-	u16		dpatype;	/* The board "type", as defined by DPA */
-	u16		dpastatus;	/* The board "status", as defined by DPA */
-
-	/*
-	 *	Mgmt data.
-	 */
-	char		*msgbuf_head;
-	char		*msgbuf;
-
-	uint		bd_dividend;	/* Board/UARTs specific dividend */
-
-	struct board_ops *bd_ops;
-
-	/* /proc/<board> entries */
-	struct proc_dir_entry *proc_entry_pointer;
-	struct dgnc_proc_entry *dgnc_board_table;
-
-};
-
-
-/************************************************************************
- * Unit flag definitions for un_flags.
- ************************************************************************/
-#define UN_ISOPEN	0x0001		/* Device is open		*/
-#define UN_CLOSING	0x0002		/* Line is being closed		*/
-#define UN_IMM		0x0004		/* Service immediately		*/
-#define UN_BUSY		0x0008		/* Some work this channel	*/
-#define UN_BREAKI	0x0010		/* Input break received		*/
-#define UN_PWAIT	0x0020		/* Printer waiting for terminal	*/
-#define UN_TIME		0x0040		/* Waiting on time		*/
-#define UN_EMPTY	0x0080		/* Waiting output queue empty	*/
-#define UN_LOW		0x0100		/* Waiting output low water mark*/
-#define UN_EXCL_OPEN	0x0200		/* Open for exclusive use	*/
-#define UN_WOPEN	0x0400		/* Device waiting for open	*/
-#define UN_WIOCTL	0x0800		/* Device waiting for open	*/
-#define UN_HANGUP	0x8000		/* Carrier lost			*/
-
-struct device;
-
-/************************************************************************
- * Structure for terminal or printer unit.
- ************************************************************************/
-struct un_t {
-	int	magic;		/* Unit Magic Number.			*/
-	struct	channel_t *un_ch;
-	ulong	un_time;
-	uint	un_type;
-	uint	un_open_count;	/* Counter of opens to port		*/
-	struct tty_struct *un_tty;/* Pointer to unit tty structure	*/
-	uint	un_flags;	/* Unit flags				*/
-	wait_queue_head_t un_flags_wait; /* Place to sleep to wait on unit */
-	uint	un_dev;		/* Minor device number			*/
-	struct device *un_sysfs;
-};
-
-
-/************************************************************************
- * Device flag definitions for ch_flags.
- ************************************************************************/
-#define CH_PRON		0x0001		/* Printer on string		*/
-#define CH_STOP		0x0002		/* Output is stopped		*/
-#define CH_STOPI	0x0004		/* Input is stopped		*/
-#define CH_CD		0x0008		/* Carrier is present		*/
-#define CH_FCAR		0x0010		/* Carrier forced on		*/
-#define CH_HANGUP       0x0020		/* Hangup received		*/
-
-#define CH_RECEIVER_OFF	0x0040		/* Receiver is off		*/
-#define CH_OPENING	0x0080		/* Port in fragile open state	*/
-#define CH_CLOSING	0x0100		/* Port in fragile close state	*/
-#define CH_FIFO_ENABLED 0x0200		/* Port has FIFOs enabled	*/
-#define CH_TX_FIFO_EMPTY 0x0400		/* TX Fifo is completely empty	*/
-#define CH_TX_FIFO_LWM  0x0800		/* TX Fifo is below Low Water	*/
-#define CH_BREAK_SENDING 0x1000		/* Break is being sent		*/
-#define CH_LOOPBACK 0x2000		/* Channel is in lookback mode	*/
-#define CH_BAUD0	0x08000		/* Used for checking B0 transitions */
-#define CH_FORCED_STOP  0x20000		/* Output is forcibly stopped	*/
-#define CH_FORCED_STOPI 0x40000		/* Input is forcibly stopped	*/
-
-
-/* Our Read/Error/Write queue sizes */
-#define RQUEUEMASK	0x1FFF		/* 8 K - 1 */
-#define EQUEUEMASK	0x1FFF		/* 8 K - 1 */
-#define WQUEUEMASK	0x0FFF		/* 4 K - 1 */
-#define RQUEUESIZE	(RQUEUEMASK + 1)
-#define EQUEUESIZE	RQUEUESIZE
-#define WQUEUESIZE	(WQUEUEMASK + 1)
-
-
-/************************************************************************
- * Channel information structure.
- ************************************************************************/
-struct channel_t {
-	int magic;			/* Channel Magic Number		*/
-	struct dgnc_board	*ch_bd;		/* Board structure pointer      */
-	struct digi_t	ch_digi;	/* Transparent Print structure  */
-	struct un_t	ch_tun;		/* Terminal unit info	   */
-	struct un_t	ch_pun;		/* Printer unit info	    */
-
-	spinlock_t	ch_lock;	/* provide for serialization */
-	wait_queue_head_t ch_flags_wait;
-
-	uint		ch_portnum;	/* Port number, 0 offset.	*/
-	uint		ch_open_count;	/* open count			*/
-	uint		ch_flags;	/* Channel flags		*/
-
-	ulong		ch_close_delay;	/* How long we should drop RTS/DTR for */
-
-	ulong		ch_cpstime;	/* Time for CPS calculations    */
-
-	tcflag_t	ch_c_iflag;	/* channel iflags	       */
-	tcflag_t	ch_c_cflag;	/* channel cflags	       */
-	tcflag_t	ch_c_oflag;	/* channel oflags	       */
-	tcflag_t	ch_c_lflag;	/* channel lflags	       */
-	unsigned char	ch_stopc;	/* Stop character	       */
-	unsigned char	ch_startc;	/* Start character	      */
-
-	uint		ch_old_baud;	/* Cache of the current baud */
-	uint		ch_custom_speed;/* Custom baud, if set */
-
-	uint		ch_wopen;	/* Waiting for open process cnt */
-
-	unsigned char		ch_mostat;	/* FEP output modem status      */
-	unsigned char		ch_mistat;	/* FEP input modem status       */
-
-	struct neo_uart_struct __iomem *ch_neo_uart;	/* Pointer to the "mapped" UART struct */
-	struct cls_uart_struct __iomem *ch_cls_uart;	/* Pointer to the "mapped" UART struct */
-
-	unsigned char	ch_cached_lsr;	/* Cached value of the LSR register */
-
-	unsigned char	*ch_rqueue;	/* Our read queue buffer - malloc'ed */
-	ushort		ch_r_head;	/* Head location of the read queue */
-	ushort		ch_r_tail;	/* Tail location of the read queue */
-
-	unsigned char	*ch_equeue;	/* Our error queue buffer - malloc'ed */
-	ushort		ch_e_head;	/* Head location of the error queue */
-	ushort		ch_e_tail;	/* Tail location of the error queue */
-
-	unsigned char	*ch_wqueue;	/* Our write queue buffer - malloc'ed */
-	ushort		ch_w_head;	/* Head location of the write queue */
-	ushort		ch_w_tail;	/* Tail location of the write queue */
-
-	ulong		ch_rxcount;	/* total of data received so far */
-	ulong		ch_txcount;	/* total of data transmitted so far */
-
-	unsigned char		ch_r_tlevel;	/* Receive Trigger level */
-	unsigned char		ch_t_tlevel;	/* Transmit Trigger level */
-
-	unsigned char		ch_r_watermark;	/* Receive Watermark */
-
-	ulong		ch_stop_sending_break;	/* Time we should STOP sending a break */
-
-	uint		ch_stops_sent;	/* How many times I have sent a stop character
-					 * to try to stop the other guy sending.
-					 */
-	ulong		ch_err_parity;	/* Count of parity errors on channel */
-	ulong		ch_err_frame;	/* Count of framing errors on channel */
-	ulong		ch_err_break;	/* Count of breaks on channel */
-	ulong		ch_err_overrun; /* Count of overruns on channel */
-
-	ulong		ch_xon_sends;	/* Count of xons transmitted */
-	ulong		ch_xoff_sends;	/* Count of xoffs transmitted */
-
-	ulong		ch_intr_modem;	/* Count of interrupts */
-	ulong		ch_intr_tx;	/* Count of interrupts */
-	ulong		ch_intr_rx;	/* Count of interrupts */
-
-
-	/* /proc/<board>/<channel> entries */
-	struct proc_dir_entry *proc_entry_pointer;
-	struct dgnc_proc_entry *dgnc_channel_table;
-
-};
-
-/*
- * Our Global Variables.
- */
-extern uint		dgnc_Major;		/* Our driver/mgmt major */
-extern int		dgnc_poll_tick;		/* Poll interval - 20 ms */
-extern spinlock_t	dgnc_global_lock;	/* Driver global spinlock */
-extern uint		dgnc_NumBoards;		/* Total number of boards */
-extern struct dgnc_board	*dgnc_Board[MAXBOARDS];	/* Array of board structs */
-
-#endif
diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
deleted file mode 100644
index b13318a82fe1..000000000000
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-/************************************************************************
- *
- * This file implements the mgmt functionality for the
- * Neo and ClassicBoard based product lines.
- *
- ************************************************************************
- */
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/sched.h>	/* For jiffies, task states */
-#include <linux/interrupt.h>	/* For tasklet and interrupt structs/defines */
-#include <linux/serial_reg.h>
-#include <linux/termios.h>
-#include <linux/uaccess.h>	/* For copy_from_user/copy_to_user */
-
-#include "dgnc_driver.h"
-#include "dgnc_pci.h"
-#include "dgnc_mgmt.h"
-
-
-/* Our "in use" variables, to enforce 1 open only */
-static int dgnc_mgmt_in_use[MAXMGMTDEVICES];
-
-
-/*
- * dgnc_mgmt_open()
- *
- * Open the mgmt/downld/dpa device
- */
-int dgnc_mgmt_open(struct inode *inode, struct file *file)
-{
-	unsigned long flags;
-	unsigned int minor = iminor(inode);
-
-	spin_lock_irqsave(&dgnc_global_lock, flags);
-
-	/* mgmt device */
-	if (minor < MAXMGMTDEVICES) {
-		/* Only allow 1 open at a time on mgmt device */
-		if (dgnc_mgmt_in_use[minor]) {
-			spin_unlock_irqrestore(&dgnc_global_lock, flags);
-			return -EBUSY;
-		}
-		dgnc_mgmt_in_use[minor]++;
-	} else {
-		spin_unlock_irqrestore(&dgnc_global_lock, flags);
-		return -ENXIO;
-	}
-
-	spin_unlock_irqrestore(&dgnc_global_lock, flags);
-
-	return 0;
-}
-
-
-/*
- * dgnc_mgmt_close()
- *
- * Open the mgmt/dpa device
- */
-int dgnc_mgmt_close(struct inode *inode, struct file *file)
-{
-	unsigned long flags;
-	unsigned int minor = iminor(inode);
-
-	spin_lock_irqsave(&dgnc_global_lock, flags);
-
-	/* mgmt device */
-	if (minor < MAXMGMTDEVICES) {
-		if (dgnc_mgmt_in_use[minor])
-			dgnc_mgmt_in_use[minor] = 0;
-	}
-	spin_unlock_irqrestore(&dgnc_global_lock, flags);
-
-	return 0;
-}
-
-
-/*
- * dgnc_mgmt_ioctl()
- *
- * ioctl the mgmt/dpa device
- */
-
-long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	unsigned long flags;
-	void __user *uarg = (void __user *) arg;
-
-	switch (cmd) {
-
-	case DIGI_GETDD:
-	{
-		/*
-		 * This returns the total number of boards
-		 * in the system, as well as driver version
-		 * and has space for a reserved entry
-		 */
-		struct digi_dinfo ddi;
-
-		spin_lock_irqsave(&dgnc_global_lock, flags);
-
-		ddi.dinfo_nboards = dgnc_NumBoards;
-		sprintf(ddi.dinfo_version, "%s", DG_PART);
-
-		spin_unlock_irqrestore(&dgnc_global_lock, flags);
-
-		if (copy_to_user(uarg, &ddi, sizeof(ddi)))
-			return -EFAULT;
-
-		break;
-	}
-
-	case DIGI_GETBD:
-	{
-		int brd;
-
-		struct digi_info di;
-
-		if (copy_from_user(&brd, uarg, sizeof(int)))
-			return -EFAULT;
-
-		if (brd < 0 || brd >= dgnc_NumBoards)
-			return -ENODEV;
-
-		memset(&di, 0, sizeof(di));
-
-		di.info_bdnum = brd;
-
-		spin_lock_irqsave(&dgnc_Board[brd]->bd_lock, flags);
-
-		di.info_bdtype = dgnc_Board[brd]->dpatype;
-		di.info_bdstate = dgnc_Board[brd]->dpastatus;
-		di.info_ioport = 0;
-		di.info_physaddr = (ulong) dgnc_Board[brd]->membase;
-		di.info_physsize = (ulong) dgnc_Board[brd]->membase - dgnc_Board[brd]->membase_end;
-		if (dgnc_Board[brd]->state != BOARD_FAILED)
-			di.info_nports = dgnc_Board[brd]->nasync;
-		else
-			di.info_nports = 0;
-
-		spin_unlock_irqrestore(&dgnc_Board[brd]->bd_lock, flags);
-
-		if (copy_to_user(uarg, &di, sizeof(di)))
-			return -EFAULT;
-
-		break;
-	}
-
-	case DIGI_GET_NI_INFO:
-	{
-		struct channel_t *ch;
-		struct ni_info ni;
-		unsigned char mstat = 0;
-		uint board = 0;
-		uint channel = 0;
-
-		if (copy_from_user(&ni, uarg, sizeof(ni)))
-			return -EFAULT;
-
-		board = ni.board;
-		channel = ni.channel;
-
-		/* Verify boundaries on board */
-		if (board >= dgnc_NumBoards)
-			return -ENODEV;
-
-		/* Verify boundaries on channel */
-		if (channel >= dgnc_Board[board]->nasync)
-			return -ENODEV;
-
-		ch = dgnc_Board[board]->channels[channel];
-
-		if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-			return -ENODEV;
-
-		memset(&ni, 0, sizeof(ni));
-		ni.board = board;
-		ni.channel = channel;
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-
-		mstat = (ch->ch_mostat | ch->ch_mistat);
-
-		if (mstat & UART_MCR_DTR) {
-			ni.mstat |= TIOCM_DTR;
-			ni.dtr = TIOCM_DTR;
-		}
-		if (mstat & UART_MCR_RTS) {
-			ni.mstat |= TIOCM_RTS;
-			ni.rts = TIOCM_RTS;
-		}
-		if (mstat & UART_MSR_CTS) {
-			ni.mstat |= TIOCM_CTS;
-			ni.cts = TIOCM_CTS;
-		}
-		if (mstat & UART_MSR_RI) {
-			ni.mstat |= TIOCM_RI;
-			ni.ri = TIOCM_RI;
-		}
-		if (mstat & UART_MSR_DCD) {
-			ni.mstat |= TIOCM_CD;
-			ni.dcd = TIOCM_CD;
-		}
-		if (mstat & UART_MSR_DSR)
-			ni.mstat |= TIOCM_DSR;
-
-		ni.iflag = ch->ch_c_iflag;
-		ni.oflag = ch->ch_c_oflag;
-		ni.cflag = ch->ch_c_cflag;
-		ni.lflag = ch->ch_c_lflag;
-
-		if (ch->ch_digi.digi_flags & CTSPACE ||
-		    ch->ch_c_cflag & CRTSCTS)
-			ni.hflow = 1;
-		else
-			ni.hflow = 0;
-
-		if ((ch->ch_flags & CH_STOPI) ||
-		    (ch->ch_flags & CH_FORCED_STOPI))
-			ni.recv_stopped = 1;
-		else
-			ni.recv_stopped = 0;
-
-		if ((ch->ch_flags & CH_STOP) || (ch->ch_flags & CH_FORCED_STOP))
-			ni.xmit_stopped = 1;
-		else
-			ni.xmit_stopped = 0;
-
-		ni.curtx = ch->ch_txcount;
-		ni.currx = ch->ch_rxcount;
-
-		ni.baud = ch->ch_old_baud;
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		if (copy_to_user(uarg, &ni, sizeof(ni)))
-			return -EFAULT;
-
-		break;
-	}
-
-
-	}
-
-	return 0;
-}
diff --git a/drivers/staging/dgnc/dgnc_mgmt.h b/drivers/staging/dgnc/dgnc_mgmt.h
deleted file mode 100644
index 708abe9594d4..000000000000
--- a/drivers/staging/dgnc/dgnc_mgmt.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef __DGNC_MGMT_H
-#define __DGNC_MGMT_H
-
-#define MAXMGMTDEVICES 8
-
-int dgnc_mgmt_open(struct inode *inode, struct file *file);
-int dgnc_mgmt_close(struct inode *inode, struct file *file);
-long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-#endif
-
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
deleted file mode 100644
index 900e3ae55a38..000000000000
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ /dev/null
@@ -1,1846 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-
-#include <linux/kernel.h>
-#include <linux/sched.h>	/* For jiffies, task states */
-#include <linux/interrupt.h>    /* For tasklet and interrupt structs/defines */
-#include <linux/delay.h>	/* For udelay */
-#include <linux/io.h>		/* For read[bwl]/write[bwl] */
-#include <linux/serial.h>	/* For struct async_serial */
-#include <linux/serial_reg.h>	/* For the various UART offsets */
-
-#include "dgnc_driver.h"	/* Driver main header file */
-#include "dgnc_neo.h"		/* Our header file */
-#include "dgnc_tty.h"
-
-static inline void neo_parse_lsr(struct dgnc_board *brd, uint port);
-static inline void neo_parse_isr(struct dgnc_board *brd, uint port);
-static void neo_copy_data_from_uart_to_queue(struct channel_t *ch);
-static inline void neo_clear_break(struct channel_t *ch, int force);
-static inline void neo_set_cts_flow_control(struct channel_t *ch);
-static inline void neo_set_rts_flow_control(struct channel_t *ch);
-static inline void neo_set_ixon_flow_control(struct channel_t *ch);
-static inline void neo_set_ixoff_flow_control(struct channel_t *ch);
-static inline void neo_set_no_output_flow_control(struct channel_t *ch);
-static inline void neo_set_no_input_flow_control(struct channel_t *ch);
-static inline void neo_set_new_start_stop_chars(struct channel_t *ch);
-static void neo_parse_modem(struct channel_t *ch, unsigned char signals);
-static void neo_tasklet(unsigned long data);
-static void neo_vpd(struct dgnc_board *brd);
-static void neo_uart_init(struct channel_t *ch);
-static void neo_uart_off(struct channel_t *ch);
-static int neo_drain(struct tty_struct *tty, uint seconds);
-static void neo_param(struct tty_struct *tty);
-static void neo_assert_modem_signals(struct channel_t *ch);
-static void neo_flush_uart_write(struct channel_t *ch);
-static void neo_flush_uart_read(struct channel_t *ch);
-static void neo_disable_receiver(struct channel_t *ch);
-static void neo_enable_receiver(struct channel_t *ch);
-static void neo_send_break(struct channel_t *ch, int msecs);
-static void neo_send_start_character(struct channel_t *ch);
-static void neo_send_stop_character(struct channel_t *ch);
-static void neo_copy_data_from_queue_to_uart(struct channel_t *ch);
-static uint neo_get_uart_bytes_left(struct channel_t *ch);
-static void neo_send_immediate_char(struct channel_t *ch, unsigned char c);
-static irqreturn_t neo_intr(int irq, void *voidbrd);
-
-
-struct board_ops dgnc_neo_ops = {
-	.tasklet =			neo_tasklet,
-	.intr =				neo_intr,
-	.uart_init =			neo_uart_init,
-	.uart_off =			neo_uart_off,
-	.drain =			neo_drain,
-	.param =			neo_param,
-	.vpd =				neo_vpd,
-	.assert_modem_signals =		neo_assert_modem_signals,
-	.flush_uart_write =		neo_flush_uart_write,
-	.flush_uart_read =		neo_flush_uart_read,
-	.disable_receiver =		neo_disable_receiver,
-	.enable_receiver =		neo_enable_receiver,
-	.send_break =			neo_send_break,
-	.send_start_character =		neo_send_start_character,
-	.send_stop_character =		neo_send_stop_character,
-	.copy_data_from_queue_to_uart =	neo_copy_data_from_queue_to_uart,
-	.get_uart_bytes_left =		neo_get_uart_bytes_left,
-	.send_immediate_char =		neo_send_immediate_char
-};
-
-static uint dgnc_offset_table[8] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 };
-
-
-/*
- * This function allows calls to ensure that all outstanding
- * PCI writes have been completed, by doing a PCI read against
- * a non-destructive, read-only location on the Neo card.
- *
- * In this case, we are reading the DVID (Read-only Device Identification)
- * value of the Neo card.
- */
-static inline void neo_pci_posting_flush(struct dgnc_board *bd)
-{
-	readb(bd->re_map_membase + 0x8D);
-}
-
-static inline void neo_set_cts_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-
-	/* Turn on auto CTS flow control */
-#if 1
-	ier |= UART_17158_IER_CTSDSR;
-#else
-	ier &= ~(UART_17158_IER_CTSDSR);
-#endif
-
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_CTSDSR);
-
-	/* Turn off auto Xon flow control */
-	efr &= ~UART_17158_EFR_IXON;
-
-	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr);
-
-	/* Feed the UART our trigger levels */
-	writeb(8, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 8;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static inline void neo_set_rts_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn on auto RTS flow control */
-#if 1
-	ier |= UART_17158_IER_RTSDTR;
-#else
-	ier &= ~(UART_17158_IER_RTSDTR);
-#endif
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_RTSDTR);
-
-	/* Turn off auto Xoff flow control */
-	ier &= ~UART_17158_IER_XOFF;
-	efr &= ~UART_17158_EFR_IXOFF;
-
-	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr);
-	ch->ch_r_watermark = 4;
-
-	writeb(32, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 32;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	/*
-	 * From the Neo UART spec sheet:
-	 * The auto RTS/DTR function must be started by asserting
-	 * RTS/DTR# output pin (MCR bit-0 or 1 to logic 1 after
-	 * it is enabled.
-	 */
-	ch->ch_mostat |= UART_MCR_RTS;
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static inline void neo_set_ixon_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto CTS flow control */
-	ier &= ~UART_17158_IER_CTSDSR;
-	efr &= ~UART_17158_EFR_CTSDSR;
-
-	/* Turn on auto Xon flow control */
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXON);
-
-	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr);
-	ch->ch_r_watermark = 4;
-
-	writeb(32, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 32;
-
-	/* Tell UART what start/stop chars it should be looking for */
-	writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1);
-	writeb(0, &ch->ch_neo_uart->xonchar2);
-
-	writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1);
-	writeb(0, &ch->ch_neo_uart->xoffchar2);
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static inline void neo_set_ixoff_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto RTS flow control */
-	ier &= ~UART_17158_IER_RTSDTR;
-	efr &= ~UART_17158_EFR_RTSDTR;
-
-	/* Turn on auto Xoff flow control */
-	ier |= UART_17158_IER_XOFF;
-	efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXOFF);
-
-	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr);
-
-	writeb(8, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 8;
-
-	/* Tell UART what start/stop chars it should be looking for */
-	writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1);
-	writeb(0, &ch->ch_neo_uart->xonchar2);
-
-	writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1);
-	writeb(0, &ch->ch_neo_uart->xoffchar2);
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static inline void neo_set_no_input_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto RTS flow control */
-	ier &= ~UART_17158_IER_RTSDTR;
-	efr &= ~UART_17158_EFR_RTSDTR;
-
-	/* Turn off auto Xoff flow control */
-	ier &= ~UART_17158_IER_XOFF;
-	if (ch->ch_c_iflag & IXON)
-		efr &= ~(UART_17158_EFR_IXOFF);
-	else
-		efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXOFF);
-
-
-	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr);
-
-	ch->ch_r_watermark = 0;
-
-	writeb(16, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 16;
-
-	writeb(16, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 16;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static inline void neo_set_no_output_flow_control(struct channel_t *ch)
-{
-	unsigned char ier = readb(&ch->ch_neo_uart->ier);
-	unsigned char efr = readb(&ch->ch_neo_uart->efr);
-
-	/* Turn off auto CTS flow control */
-	ier &= ~UART_17158_IER_CTSDSR;
-	efr &= ~UART_17158_EFR_CTSDSR;
-
-	/* Turn off auto Xon flow control */
-	if (ch->ch_c_iflag & IXOFF)
-		efr &= ~UART_17158_EFR_IXON;
-	else
-		efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXON);
-
-	/* Why? Becuz Exar's spec says we have to zero it out before setting it */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Turn on UART enhanced bits */
-	writeb(efr, &ch->ch_neo_uart->efr);
-
-	/* Turn on table D, with 8 char hi/low watermarks */
-	writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr);
-
-	ch->ch_r_watermark = 0;
-
-	writeb(16, &ch->ch_neo_uart->tfifo);
-	ch->ch_t_tlevel = 16;
-
-	writeb(16, &ch->ch_neo_uart->rfifo);
-	ch->ch_r_tlevel = 16;
-
-	writeb(ier, &ch->ch_neo_uart->ier);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-/* change UARTs start/stop chars */
-static inline void neo_set_new_start_stop_chars(struct channel_t *ch)
-{
-
-	/* if hardware flow control is set, then skip this whole thing */
-	if (ch->ch_digi.digi_flags & (CTSPACE | RTSPACE) || ch->ch_c_cflag & CRTSCTS)
-		return;
-
-	/* Tell UART what start/stop chars it should be looking for */
-	writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1);
-	writeb(0, &ch->ch_neo_uart->xonchar2);
-
-	writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1);
-	writeb(0, &ch->ch_neo_uart->xoffchar2);
-
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-/*
- * No locks are assumed to be held when calling this function.
- */
-static inline void neo_clear_break(struct channel_t *ch, int force)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* Bail if we aren't currently sending a break. */
-	if (!ch->ch_stop_sending_break) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
-
-	/* Turn break off, and unset some variables */
-	if (ch->ch_flags & CH_BREAK_SENDING) {
-		if (time_after_eq(jiffies, ch->ch_stop_sending_break)
-		    || force) {
-			unsigned char temp = readb(&ch->ch_neo_uart->lcr);
-
-			writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr);
-			neo_pci_posting_flush(ch->ch_bd);
-			ch->ch_flags &= ~(CH_BREAK_SENDING);
-			ch->ch_stop_sending_break = 0;
-		}
-	}
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-/*
- * Parse the ISR register.
- */
-static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
-{
-	struct channel_t *ch;
-	unsigned char isr;
-	unsigned char cause;
-	unsigned long flags;
-
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	if (port >= brd->maxports)
-		return;
-
-	ch = brd->channels[port];
-	if (ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	/* Here we try to figure out what caused the interrupt to happen */
-	while (1) {
-
-		isr = readb(&ch->ch_neo_uart->isr_fcr);
-
-		/* Bail if no pending interrupt */
-		if (isr & UART_IIR_NO_INT)
-			break;
-
-		/*
-		 * Yank off the upper 2 bits, which just show that the FIFO's are enabled.
-		 */
-		isr &= ~(UART_17158_IIR_FIFO_ENABLED);
-
-		if (isr & (UART_17158_IIR_RDI_TIMEOUT | UART_IIR_RDI)) {
-			/* Read data from uart -> queue */
-			brd->intr_rx++;
-			ch->ch_intr_rx++;
-			neo_copy_data_from_uart_to_queue(ch);
-
-			/* Call our tty layer to enforce queue flow control if needed. */
-			spin_lock_irqsave(&ch->ch_lock, flags);
-			dgnc_check_queue_flow_control(ch);
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-		}
-
-		if (isr & UART_IIR_THRI) {
-			brd->intr_tx++;
-			ch->ch_intr_tx++;
-			/* Transfer data (if any) from Write Queue -> UART. */
-			spin_lock_irqsave(&ch->ch_lock, flags);
-			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			neo_copy_data_from_queue_to_uart(ch);
-		}
-
-		if (isr & UART_17158_IIR_XONXOFF) {
-			cause = readb(&ch->ch_neo_uart->xoffchar1);
-
-			/*
-			 * Since the UART detected either an XON or
-			 * XOFF match, we need to figure out which
-			 * one it was, so we can suspend or resume data flow.
-			 */
-			if (cause == UART_17158_XON_DETECT) {
-				/* Is output stopped right now, if so, resume it */
-				if (brd->channels[port]->ch_flags & CH_STOP) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_flags &= ~(CH_STOP);
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			} else if (cause == UART_17158_XOFF_DETECT) {
-				if (!(brd->channels[port]->ch_flags & CH_STOP)) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_flags |= CH_STOP;
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			}
-		}
-
-		if (isr & UART_17158_IIR_HWFLOW_STATE_CHANGE) {
-			/*
-			 * If we get here, this means the hardware is doing auto flow control.
-			 * Check to see whether RTS/DTR or CTS/DSR caused this interrupt.
-			 */
-			brd->intr_modem++;
-			ch->ch_intr_modem++;
-			cause = readb(&ch->ch_neo_uart->mcr);
-			/* Which pin is doing auto flow? RTS or DTR? */
-			if ((cause & 0x4) == 0) {
-				if (cause & UART_MCR_RTS) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat |= UART_MCR_RTS;
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				} else {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat &= ~(UART_MCR_RTS);
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			} else {
-				if (cause & UART_MCR_DTR) {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat |= UART_MCR_DTR;
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				} else {
-					spin_lock_irqsave(&ch->ch_lock,
-							  flags);
-					ch->ch_mostat &= ~(UART_MCR_DTR);
-					spin_unlock_irqrestore(&ch->ch_lock,
-							       flags);
-				}
-			}
-		}
-
-		/* Parse any modem signal changes */
-		neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr));
-	}
-}
-
-
-static inline void neo_parse_lsr(struct dgnc_board *brd, uint port)
-{
-	struct channel_t *ch;
-	int linestatus;
-	unsigned long flags;
-
-	/*
-	 * Check to make sure it didn't receive interrupt with a null board
-	 * associated or a board pointer that wasn't ours.
-	 */
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	if (port >= brd->maxports)
-		return;
-
-	ch = brd->channels[port];
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	linestatus = readb(&ch->ch_neo_uart->lsr);
-
-	ch->ch_cached_lsr |= linestatus;
-
-	if (ch->ch_cached_lsr & UART_LSR_DR) {
-		brd->intr_rx++;
-		ch->ch_intr_rx++;
-		/* Read data from uart -> queue */
-		neo_copy_data_from_uart_to_queue(ch);
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		dgnc_check_queue_flow_control(ch);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-	}
-
-	/*
-	 * The next 3 tests should *NOT* happen, as the above test
-	 * should encapsulate all 3... At least, thats what Exar says.
-	 */
-
-	if (linestatus & UART_LSR_PE)
-		ch->ch_err_parity++;
-
-	if (linestatus & UART_LSR_FE)
-		ch->ch_err_frame++;
-
-	if (linestatus & UART_LSR_BI)
-		ch->ch_err_break++;
-
-	if (linestatus & UART_LSR_OE) {
-		/*
-		 * Rx Oruns. Exar says that an orun will NOT corrupt
-		 * the FIFO. It will just replace the holding register
-		 * with this new data byte. So basically just ignore this.
-		 * Probably we should eventually have an orun stat in our driver...
-		 */
-		ch->ch_err_overrun++;
-	}
-
-	if (linestatus & UART_LSR_THRE) {
-		brd->intr_tx++;
-		ch->ch_intr_tx++;
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		/* Transfer data (if any) from Write Queue -> UART. */
-		neo_copy_data_from_queue_to_uart(ch);
-	} else if (linestatus & UART_17158_TX_AND_FIFO_CLR) {
-		brd->intr_tx++;
-		ch->ch_intr_tx++;
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		/* Transfer data (if any) from Write Queue -> UART. */
-		neo_copy_data_from_queue_to_uart(ch);
-	}
-}
-
-
-/*
- * neo_param()
- * Send any/all changes to the line to the UART.
- */
-static void neo_param(struct tty_struct *tty)
-{
-	unsigned char lcr = 0;
-	unsigned char uart_lcr = 0;
-	unsigned char ier = 0;
-	unsigned char uart_ier = 0;
-	uint baud = 9600;
-	int quot = 0;
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t   *un;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = (struct un_t *) tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	/*
-	 * If baud rate is zero, flush queues, and set mval to drop DTR.
-	 */
-	if ((ch->ch_c_cflag & (CBAUD)) == 0) {
-		ch->ch_r_head = 0;
-		ch->ch_r_tail = 0;
-		ch->ch_e_head = 0;
-		ch->ch_e_tail = 0;
-		ch->ch_w_head = 0;
-		ch->ch_w_tail = 0;
-
-		neo_flush_uart_write(ch);
-		neo_flush_uart_read(ch);
-
-		/* The baudrate is B0 so all modem lines are to be dropped. */
-		ch->ch_flags |= (CH_BAUD0);
-		ch->ch_mostat &= ~(UART_MCR_RTS | UART_MCR_DTR);
-		neo_assert_modem_signals(ch);
-		ch->ch_old_baud = 0;
-		return;
-
-	} else if (ch->ch_custom_speed) {
-
-		baud = ch->ch_custom_speed;
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-
-			/*
-			 * Bring back up RTS and DTR...
-			 * Also handle RTS or DTR toggle if set.
-			 */
-			if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_RTS);
-			if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_DTR);
-		}
-	} else {
-		int iindex = 0;
-		int jindex = 0;
-
-		ulong bauds[4][16] = {
-			{ /* slowbaud */
-				0,      50,     75,     110,
-				134,    150,    200,    300,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* slowbaud & CBAUDEX */
-				0,      57600,  115200, 230400,
-				460800, 150,    200,    921600,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* fastbaud */
-				0,      57600,   76800, 115200,
-				131657, 153600, 230400, 460800,
-				921600, 1200,   1800,   2400,
-				4800,   9600,   19200,  38400 },
-			{ /* fastbaud & CBAUDEX */
-				0,      57600,  115200, 230400,
-				460800, 150,    200,    921600,
-				600,    1200,   1800,   2400,
-				4800,   9600,   19200,  38400 }
-		};
-
-		/* Only use the TXPrint baud rate if the terminal unit is NOT open */
-		if (!(ch->ch_tun.un_flags & UN_ISOPEN) && (un->un_type == DGNC_PRINT))
-			baud = C_BAUD(ch->ch_pun.un_tty) & 0xff;
-		else
-			baud = C_BAUD(ch->ch_tun.un_tty) & 0xff;
-
-		if (ch->ch_c_cflag & CBAUDEX)
-			iindex = 1;
-
-		if (ch->ch_digi.digi_flags & DIGI_FAST)
-			iindex += 2;
-
-		jindex = baud;
-
-		if ((iindex >= 0) && (iindex < 4) && (jindex >= 0) && (jindex < 16))
-			baud = bauds[iindex][jindex];
-		else
-			baud = 0;
-
-		if (baud == 0)
-			baud = 9600;
-
-		/* Handle transition from B0 */
-		if (ch->ch_flags & CH_BAUD0) {
-			ch->ch_flags &= ~(CH_BAUD0);
-
-			/*
-			 * Bring back up RTS and DTR...
-			 * Also handle RTS or DTR toggle if set.
-			 */
-			if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_RTS);
-			if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE))
-				ch->ch_mostat |= (UART_MCR_DTR);
-		}
-	}
-
-	if (ch->ch_c_cflag & PARENB)
-		lcr |= UART_LCR_PARITY;
-
-	if (!(ch->ch_c_cflag & PARODD))
-		lcr |= UART_LCR_EPAR;
-
-	/*
-	 * Not all platforms support mark/space parity,
-	 * so this will hide behind an ifdef.
-	 */
-#ifdef CMSPAR
-	if (ch->ch_c_cflag & CMSPAR)
-		lcr |= UART_LCR_SPAR;
-#endif
-
-	if (ch->ch_c_cflag & CSTOPB)
-		lcr |= UART_LCR_STOP;
-
-	switch (ch->ch_c_cflag & CSIZE) {
-	case CS5:
-		lcr |= UART_LCR_WLEN5;
-		break;
-	case CS6:
-		lcr |= UART_LCR_WLEN6;
-		break;
-	case CS7:
-		lcr |= UART_LCR_WLEN7;
-		break;
-	case CS8:
-	default:
-		lcr |= UART_LCR_WLEN8;
-		break;
-	}
-
-	uart_ier = readb(&ch->ch_neo_uart->ier);
-	ier = uart_ier;
-
-	uart_lcr = readb(&ch->ch_neo_uart->lcr);
-
-	if (baud == 0)
-		baud = 9600;
-
-	quot = ch->ch_bd->bd_dividend / baud;
-
-	if (quot != 0 && ch->ch_old_baud != baud) {
-		ch->ch_old_baud = baud;
-		writeb(UART_LCR_DLAB, &ch->ch_neo_uart->lcr);
-		writeb((quot & 0xff), &ch->ch_neo_uart->txrx);
-		writeb((quot >> 8), &ch->ch_neo_uart->ier);
-		writeb(lcr, &ch->ch_neo_uart->lcr);
-	}
-
-	if (uart_lcr != lcr)
-		writeb(lcr, &ch->ch_neo_uart->lcr);
-
-	if (ch->ch_c_cflag & CREAD)
-		ier |= (UART_IER_RDI | UART_IER_RLSI);
-	else
-		ier &= ~(UART_IER_RDI | UART_IER_RLSI);
-
-	/*
-	 * Have the UART interrupt on modem signal changes ONLY when
-	 * we are in hardware flow control mode, or CLOCAL/FORCEDCD is not set.
-	 */
-	if ((ch->ch_digi.digi_flags & CTSPACE) ||
-	    (ch->ch_digi.digi_flags & RTSPACE) ||
-	    (ch->ch_c_cflag & CRTSCTS) ||
-	    !(ch->ch_digi.digi_flags & DIGI_FORCEDCD) ||
-	    !(ch->ch_c_cflag & CLOCAL))
-		ier |= UART_IER_MSI;
-	else
-		ier &= ~UART_IER_MSI;
-
-	ier |= UART_IER_THRI;
-
-	if (ier != uart_ier)
-		writeb(ier, &ch->ch_neo_uart->ier);
-
-	/* Set new start/stop chars */
-	neo_set_new_start_stop_chars(ch);
-
-	if (ch->ch_digi.digi_flags & CTSPACE || ch->ch_c_cflag & CRTSCTS) {
-		neo_set_cts_flow_control(ch);
-	} else if (ch->ch_c_iflag & IXON) {
-		/* If start/stop is set to disable, then we should disable flow control */
-		if ((ch->ch_startc == _POSIX_VDISABLE) || (ch->ch_stopc == _POSIX_VDISABLE))
-			neo_set_no_output_flow_control(ch);
-		else
-			neo_set_ixon_flow_control(ch);
-	} else {
-		neo_set_no_output_flow_control(ch);
-	}
-
-	if (ch->ch_digi.digi_flags & RTSPACE || ch->ch_c_cflag & CRTSCTS) {
-		neo_set_rts_flow_control(ch);
-	} else if (ch->ch_c_iflag & IXOFF) {
-		/* If start/stop is set to disable, then we should disable flow control */
-		if ((ch->ch_startc == _POSIX_VDISABLE) || (ch->ch_stopc == _POSIX_VDISABLE))
-			neo_set_no_input_flow_control(ch);
-		else
-			neo_set_ixoff_flow_control(ch);
-	} else {
-		neo_set_no_input_flow_control(ch);
-	}
-
-	/*
-	 * Adjust the RX FIFO Trigger level if baud is less than 9600.
-	 * Not exactly elegant, but this is needed because of the Exar chip's
-	 * delay on firing off the RX FIFO interrupt on slower baud rates.
-	 */
-	if (baud < 9600) {
-		writeb(1, &ch->ch_neo_uart->rfifo);
-		ch->ch_r_tlevel = 1;
-	}
-
-	neo_assert_modem_signals(ch);
-
-	/* Get current status of the modem signals now */
-	neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr));
-}
-
-
-/*
- * Our board poller function.
- */
-static void neo_tasklet(unsigned long data)
-{
-	struct dgnc_board *bd = (struct dgnc_board *) data;
-	struct channel_t *ch;
-	unsigned long flags;
-	int i;
-	int state = 0;
-	int ports = 0;
-
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	/* Cache a couple board values */
-	spin_lock_irqsave(&bd->bd_lock, flags);
-	state = bd->state;
-	ports = bd->nasync;
-	spin_unlock_irqrestore(&bd->bd_lock, flags);
-
-	/*
-	 * Do NOT allow the interrupt routine to read the intr registers
-	 * Until we release this lock.
-	 */
-	spin_lock_irqsave(&bd->bd_intr_lock, flags);
-
-	/*
-	 * If board is ready, parse deeper to see if there is anything to do.
-	 */
-	if ((state == BOARD_READY) && (ports > 0)) {
-		/* Loop on each port */
-		for (i = 0; i < ports; i++) {
-			ch = bd->channels[i];
-
-			/* Just being careful... */
-			if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-				continue;
-
-			/*
-			 * NOTE: Remember you CANNOT hold any channel
-			 * locks when calling the input routine.
-			 *
-			 * During input processing, its possible we
-			 * will call the Linux ld, which might in turn,
-			 * do a callback right back into us, resulting
-			 * in us trying to grab the channel lock twice!
-			 */
-			dgnc_input(ch);
-
-			/*
-			 * Channel lock is grabbed and then released
-			 * inside both of these routines, but neither
-			 * call anything else that could call back into us.
-			 */
-			neo_copy_data_from_queue_to_uart(ch);
-			dgnc_wakeup_writes(ch);
-
-			/*
-			 * Call carrier carrier function, in case something
-			 * has changed.
-			 */
-			dgnc_carrier(ch);
-
-			/*
-			 * Check to see if we need to turn off a sending break.
-			 * The timing check is done inside clear_break()
-			 */
-			if (ch->ch_stop_sending_break)
-				neo_clear_break(ch, 0);
-		}
-	}
-
-	/* Allow interrupt routine to access the interrupt register again */
-	spin_unlock_irqrestore(&bd->bd_intr_lock, flags);
-
-}
-
-
-/*
- * dgnc_neo_intr()
- *
- * Neo specific interrupt handler.
- */
-static irqreturn_t neo_intr(int irq, void *voidbrd)
-{
-	struct dgnc_board *brd = voidbrd;
-	struct channel_t *ch;
-	int port = 0;
-	int type = 0;
-	int current_port;
-	u32 tmp;
-	u32 uart_poll;
-	unsigned long flags;
-	unsigned long flags2;
-
-	/*
-	 * Check to make sure it didn't receive interrupt with a null board
-	 * associated or a board pointer that wasn't ours.
-	 */
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return IRQ_NONE;
-
-	brd->intr_count++;
-
-	/* Lock out the slow poller from running on this board. */
-	spin_lock_irqsave(&brd->bd_intr_lock, flags);
-
-	/*
-	 * Read in "extended" IRQ information from the 32bit Neo register.
-	 * Bits 0-7: What port triggered the interrupt.
-	 * Bits 8-31: Each 3bits indicate what type of interrupt occurred.
-	 */
-	uart_poll = readl(brd->re_map_membase + UART_17158_POLL_ADDR_OFFSET);
-
-	/*
-	 * If 0, no interrupts pending.
-	 * This can happen if the IRQ is shared among a couple Neo/Classic boards.
-	 */
-	if (!uart_poll) {
-		spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
-		return IRQ_NONE;
-	}
-
-	/* At this point, we have at least SOMETHING to service, dig further... */
-
-	current_port = 0;
-
-	/* Loop on each port */
-	while ((uart_poll & 0xff) != 0) {
-
-		tmp = uart_poll;
-
-		/* Check current port to see if it has interrupt pending */
-		if ((tmp & dgnc_offset_table[current_port]) != 0) {
-			port = current_port;
-			type = tmp >> (8 + (port * 3));
-			type &= 0x7;
-		} else {
-			current_port++;
-			continue;
-		}
-
-		/* Remove this port + type from uart_poll */
-		uart_poll &= ~(dgnc_offset_table[port]);
-
-		if (!type) {
-			/* If no type, just ignore it, and move onto next port */
-			continue;
-		}
-
-		/* Switch on type of interrupt we have */
-		switch (type) {
-
-		case UART_17158_RXRDY_TIMEOUT:
-			/*
-			 * RXRDY Time-out is cleared by reading data in the
-			 * RX FIFO until it falls below the trigger level.
-			 */
-
-			/* Verify the port is in range. */
-			if (port >= brd->nasync)
-				continue;
-
-			ch = brd->channels[port];
-			neo_copy_data_from_uart_to_queue(ch);
-
-			/* Call our tty layer to enforce queue flow control if needed. */
-			spin_lock_irqsave(&ch->ch_lock, flags2);
-			dgnc_check_queue_flow_control(ch);
-			spin_unlock_irqrestore(&ch->ch_lock, flags2);
-
-			continue;
-
-		case UART_17158_RX_LINE_STATUS:
-			/*
-			 * RXRDY and RX LINE Status (logic OR of LSR[4:1])
-			 */
-			neo_parse_lsr(brd, port);
-			continue;
-
-		case UART_17158_TXRDY:
-			/*
-			 * TXRDY interrupt clears after reading ISR register for the UART channel.
-			 */
-
-			/*
-			 * Yes, this is odd...
-			 * Why would I check EVERY possibility of type of
-			 * interrupt, when we know its TXRDY???
-			 * Becuz for some reason, even tho we got triggered for TXRDY,
-			 * it seems to be occasionally wrong. Instead of TX, which
-			 * it should be, I was getting things like RXDY too. Weird.
-			 */
-			neo_parse_isr(brd, port);
-			continue;
-
-		case UART_17158_MSR:
-			/*
-			 * MSR or flow control was seen.
-			 */
-			neo_parse_isr(brd, port);
-			continue;
-
-		default:
-			/*
-			 * The UART triggered us with a bogus interrupt type.
-			 * It appears the Exar chip, when REALLY bogged down, will throw
-			 * these once and awhile.
-			 * Its harmless, just ignore it and move on.
-			 */
-			continue;
-		}
-	}
-
-	/*
-	 * Schedule tasklet to more in-depth servicing at a better time.
-	 */
-	tasklet_schedule(&brd->helper_tasklet);
-
-	spin_unlock_irqrestore(&brd->bd_intr_lock, flags);
-
-	return IRQ_HANDLED;
-}
-
-
-/*
- * Neo specific way of turning off the receiver.
- * Used as a way to enforce queue flow control when in
- * hardware flow control mode.
- */
-static void neo_disable_receiver(struct channel_t *ch)
-{
-	unsigned char tmp = readb(&ch->ch_neo_uart->ier);
-
-	tmp &= ~(UART_IER_RDI);
-	writeb(tmp, &ch->ch_neo_uart->ier);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-/*
- * Neo specific way of turning on the receiver.
- * Used as a way to un-enforce queue flow control when in
- * hardware flow control mode.
- */
-static void neo_enable_receiver(struct channel_t *ch)
-{
-	unsigned char tmp = readb(&ch->ch_neo_uart->ier);
-
-	tmp |= (UART_IER_RDI);
-	writeb(tmp, &ch->ch_neo_uart->ier);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static void neo_copy_data_from_uart_to_queue(struct channel_t *ch)
-{
-	int qleft = 0;
-	unsigned char linestatus = 0;
-	unsigned char error_mask = 0;
-	int n = 0;
-	int total = 0;
-	ushort head;
-	ushort tail;
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* cache head and tail of queue */
-	head = ch->ch_r_head & RQUEUEMASK;
-	tail = ch->ch_r_tail & RQUEUEMASK;
-
-	/* Get our cached LSR */
-	linestatus = ch->ch_cached_lsr;
-	ch->ch_cached_lsr = 0;
-
-	/* Store how much space we have left in the queue */
-	qleft = tail - head - 1;
-	if (qleft < 0)
-		qleft += RQUEUEMASK + 1;
-
-	/*
-	 * If the UART is not in FIFO mode, force the FIFO copy to
-	 * NOT be run, by setting total to 0.
-	 *
-	 * On the other hand, if the UART IS in FIFO mode, then ask
-	 * the UART to give us an approximation of data it has RX'ed.
-	 */
-	if (!(ch->ch_flags & CH_FIFO_ENABLED))
-		total = 0;
-	else {
-		total = readb(&ch->ch_neo_uart->rfifo);
-
-		/*
-		 * EXAR chip bug - RX FIFO COUNT - Fudge factor.
-		 *
-		 * This resolves a problem/bug with the Exar chip that sometimes
-		 * returns a bogus value in the rfifo register.
-		 * The count can be any where from 0-3 bytes "off".
-		 * Bizarre, but true.
-		 */
-		if ((ch->ch_bd->dvid & 0xf0) >= UART_XR17E158_DVID)
-			total -= 1;
-		else
-			total -= 3;
-	}
-
-
-	/*
-	 * Finally, bound the copy to make sure we don't overflow
-	 * our own queue...
-	 * The byte by byte copy loop below this loop this will
-	 * deal with the queue overflow possibility.
-	 */
-	total = min(total, qleft);
-
-	while (total > 0) {
-
-		/*
-		 * Grab the linestatus register, we need to check
-		 * to see if there are any errors in the FIFO.
-		 */
-		linestatus = readb(&ch->ch_neo_uart->lsr);
-
-		/*
-		 * Break out if there is a FIFO error somewhere.
-		 * This will allow us to go byte by byte down below,
-		 * finding the exact location of the error.
-		 */
-		if (linestatus & UART_17158_RX_FIFO_DATA_ERROR)
-			break;
-
-		/* Make sure we don't go over the end of our queue */
-		n = min(((uint) total), (RQUEUESIZE - (uint) head));
-
-		/*
-		 * Cut down n even further if needed, this is to fix
-		 * a problem with memcpy_fromio() with the Neo on the
-		 * IBM pSeries platform.
-		 * 15 bytes max appears to be the magic number.
-		 */
-		n = min_t(uint, n, 12);
-
-		/*
-		 * Since we are grabbing the linestatus register, which
-		 * will reset some bits after our read, we need to ensure
-		 * we don't miss our TX FIFO emptys.
-		 */
-		if (linestatus & (UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR))
-			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-
-		linestatus = 0;
-
-		/* Copy data from uart to the queue */
-		memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, n);
-
-		/*
-		 * Since RX_FIFO_DATA_ERROR was 0, we are guaranteed
-		 * that all the data currently in the FIFO is free of
-		 * breaks and parity/frame/orun errors.
-		 */
-		memset(ch->ch_equeue + head, 0, n);
-
-		/* Add to and flip head if needed */
-		head = (head + n) & RQUEUEMASK;
-		total -= n;
-		qleft -= n;
-		ch->ch_rxcount += n;
-	}
-
-	/*
-	 * Create a mask to determine whether we should
-	 * insert the character (if any) into our queue.
-	 */
-	if (ch->ch_c_iflag & IGNBRK)
-		error_mask |= UART_LSR_BI;
-
-	/*
-	 * Now cleanup any leftover bytes still in the UART.
-	 * Also deal with any possible queue overflow here as well.
-	 */
-	while (1) {
-
-		/*
-		 * Its possible we have a linestatus from the loop above
-		 * this, so we "OR" on any extra bits.
-		 */
-		linestatus |= readb(&ch->ch_neo_uart->lsr);
-
-		/*
-		 * If the chip tells us there is no more data pending to
-		 * be read, we can then leave.
-		 * But before we do, cache the linestatus, just in case.
-		 */
-		if (!(linestatus & UART_LSR_DR)) {
-			ch->ch_cached_lsr = linestatus;
-			break;
-		}
-
-		/* No need to store this bit */
-		linestatus &= ~UART_LSR_DR;
-
-		/*
-		 * Since we are grabbing the linestatus register, which
-		 * will reset some bits after our read, we need to ensure
-		 * we don't miss our TX FIFO emptys.
-		 */
-		if (linestatus & (UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR)) {
-			linestatus &= ~(UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR);
-			ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		}
-
-		/*
-		 * Discard character if we are ignoring the error mask.
-		 */
-		if (linestatus & error_mask)  {
-			unsigned char discard;
-
-			linestatus = 0;
-			memcpy_fromio(&discard, &ch->ch_neo_uart->txrxburst, 1);
-			continue;
-		}
-
-		/*
-		 * If our queue is full, we have no choice but to drop some data.
-		 * The assumption is that HWFLOW or SWFLOW should have stopped
-		 * things way way before we got to this point.
-		 *
-		 * I decided that I wanted to ditch the oldest data first,
-		 * I hope thats okay with everyone? Yes? Good.
-		 */
-		while (qleft < 1) {
-			tail = (tail + 1) & RQUEUEMASK;
-			ch->ch_r_tail = tail;
-			ch->ch_err_overrun++;
-			qleft++;
-		}
-
-		memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, 1);
-		ch->ch_equeue[head] = (unsigned char) linestatus;
-
-		/* Ditch any remaining linestatus value. */
-		linestatus = 0;
-
-		/* Add to and flip head if needed */
-		head = (head + 1) & RQUEUEMASK;
-
-		qleft--;
-		ch->ch_rxcount++;
-	}
-
-	/*
-	 * Write new final heads to channel structure.
-	 */
-	ch->ch_r_head = head & RQUEUEMASK;
-	ch->ch_e_head = head & EQUEUEMASK;
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-/*
- * This function basically goes to sleep for secs, or until
- * it gets signalled that the port has fully drained.
- */
-static int neo_drain(struct tty_struct *tty, uint seconds)
-{
-	unsigned long flags;
-	struct channel_t *ch;
-	struct un_t *un;
-	int rc = 0;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -ENXIO;
-
-	un = (struct un_t *) tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return -ENXIO;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -ENXIO;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	un->un_flags |= UN_EMPTY;
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	/*
-	 * Go to sleep waiting for the tty layer to wake me back up when
-	 * the empty flag goes away.
-	 *
-	 * NOTE: TODO: Do something with time passed in.
-	 */
-	rc = wait_event_interruptible(un->un_flags_wait, ((un->un_flags & UN_EMPTY) == 0));
-
-	/* If ret is non-zero, user ctrl-c'ed us */
-	return rc;
-}
-
-
-/*
- * Flush the WRITE FIFO on the Neo.
- *
- * NOTE: Channel lock MUST be held before calling this function!
- */
-static void neo_flush_uart_write(struct channel_t *ch)
-{
-	unsigned char tmp = 0;
-	int i = 0;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr);
-	neo_pci_posting_flush(ch->ch_bd);
-
-	for (i = 0; i < 10; i++) {
-
-		/* Check to see if the UART feels it completely flushed the FIFO. */
-		tmp = readb(&ch->ch_neo_uart->isr_fcr);
-		if (tmp & 4)
-			udelay(10);
-		else
-			break;
-	}
-
-	ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-}
-
-
-/*
- * Flush the READ FIFO on the Neo.
- *
- * NOTE: Channel lock MUST be held before calling this function!
- */
-static void neo_flush_uart_read(struct channel_t *ch)
-{
-	unsigned char tmp = 0;
-	int i = 0;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR), &ch->ch_neo_uart->isr_fcr);
-	neo_pci_posting_flush(ch->ch_bd);
-
-	for (i = 0; i < 10; i++) {
-
-		/* Check to see if the UART feels it completely flushed the FIFO. */
-		tmp = readb(&ch->ch_neo_uart->isr_fcr);
-		if (tmp & 2)
-			udelay(10);
-		else
-			break;
-	}
-}
-
-
-static void neo_copy_data_from_queue_to_uart(struct channel_t *ch)
-{
-	ushort head;
-	ushort tail;
-	int n;
-	int s;
-	int qlen;
-	uint len_written = 0;
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* No data to write to the UART */
-	if (ch->ch_w_tail == ch->ch_w_head)
-		goto exit_unlock;
-
-	/* If port is "stopped", don't send any data to the UART */
-	if ((ch->ch_flags & CH_FORCED_STOP) ||
-		 (ch->ch_flags & CH_BREAK_SENDING))
-		goto exit_unlock;
-
-	/*
-	 * If FIFOs are disabled. Send data directly to txrx register
-	 */
-	if (!(ch->ch_flags & CH_FIFO_ENABLED)) {
-		unsigned char lsrbits = readb(&ch->ch_neo_uart->lsr);
-
-		/* Cache the LSR bits for later parsing */
-		ch->ch_cached_lsr |= lsrbits;
-		if (ch->ch_cached_lsr & UART_LSR_THRE) {
-			ch->ch_cached_lsr &= ~(UART_LSR_THRE);
-
-			/*
-			 * If RTS Toggle mode is on, turn on RTS now if not already set,
-			 * and make sure we get an event when the data transfer has completed.
-			 */
-			if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) {
-				if (!(ch->ch_mostat & UART_MCR_RTS)) {
-					ch->ch_mostat |= (UART_MCR_RTS);
-					neo_assert_modem_signals(ch);
-				}
-				ch->ch_tun.un_flags |= (UN_EMPTY);
-			}
-			/*
-			 * If DTR Toggle mode is on, turn on DTR now if not already set,
-			 * and make sure we get an event when the data transfer has completed.
-			 */
-			if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) {
-				if (!(ch->ch_mostat & UART_MCR_DTR)) {
-					ch->ch_mostat |= (UART_MCR_DTR);
-					neo_assert_modem_signals(ch);
-				}
-				ch->ch_tun.un_flags |= (UN_EMPTY);
-			}
-
-			writeb(ch->ch_wqueue[ch->ch_w_tail], &ch->ch_neo_uart->txrx);
-			ch->ch_w_tail++;
-			ch->ch_w_tail &= WQUEUEMASK;
-			ch->ch_txcount++;
-		}
-
-		goto exit_unlock;
-	}
-
-	/*
-	 * We have to do it this way, because of the EXAR TXFIFO count bug.
-	 */
-	if ((ch->ch_bd->dvid & 0xf0) < UART_XR17E158_DVID) {
-		if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM)))
-			goto exit_unlock;
-
-		len_written = 0;
-
-		n = readb(&ch->ch_neo_uart->tfifo);
-
-		if ((unsigned int) n > ch->ch_t_tlevel)
-			goto exit_unlock;
-
-		n = UART_17158_TX_FIFOSIZE - ch->ch_t_tlevel;
-	} else {
-		n = UART_17158_TX_FIFOSIZE - readb(&ch->ch_neo_uart->tfifo);
-	}
-
-	/* cache head and tail of queue */
-	head = ch->ch_w_head & WQUEUEMASK;
-	tail = ch->ch_w_tail & WQUEUEMASK;
-	qlen = (head - tail) & WQUEUEMASK;
-
-	/* Find minimum of the FIFO space, versus queue length */
-	n = min(n, qlen);
-
-	while (n > 0) {
-
-		s = ((head >= tail) ? head : WQUEUESIZE) - tail;
-		s = min(s, n);
-
-		if (s <= 0)
-			break;
-
-		/*
-		 * If RTS Toggle mode is on, turn on RTS now if not already set,
-		 * and make sure we get an event when the data transfer has completed.
-		 */
-		if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) {
-			if (!(ch->ch_mostat & UART_MCR_RTS)) {
-				ch->ch_mostat |= (UART_MCR_RTS);
-				neo_assert_modem_signals(ch);
-			}
-			ch->ch_tun.un_flags |= (UN_EMPTY);
-		}
-
-		/*
-		 * If DTR Toggle mode is on, turn on DTR now if not already set,
-		 * and make sure we get an event when the data transfer has completed.
-		 */
-		if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) {
-			if (!(ch->ch_mostat & UART_MCR_DTR)) {
-				ch->ch_mostat |= (UART_MCR_DTR);
-				neo_assert_modem_signals(ch);
-			}
-			ch->ch_tun.un_flags |= (UN_EMPTY);
-		}
-
-		memcpy_toio(&ch->ch_neo_uart->txrxburst, ch->ch_wqueue + tail, s);
-
-		/* Add and flip queue if needed */
-		tail = (tail + s) & WQUEUEMASK;
-		n -= s;
-		ch->ch_txcount += s;
-		len_written += s;
-	}
-
-	/* Update the final tail */
-	ch->ch_w_tail = tail & WQUEUEMASK;
-
-	if (len_written > 0) {
-		neo_pci_posting_flush(ch->ch_bd);
-		ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-	}
-
-exit_unlock:
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-static void neo_parse_modem(struct channel_t *ch, unsigned char signals)
-{
-	unsigned char msignals = signals;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	/*
-	 * Do altpin switching. Altpin switches DCD and DSR.
-	 * This prolly breaks DSRPACE, so we should be more clever here.
-	 */
-	if (ch->ch_digi.digi_flags & DIGI_ALTPIN) {
-		unsigned char mswap = msignals;
-
-		if (mswap & UART_MSR_DDCD) {
-			msignals &= ~UART_MSR_DDCD;
-			msignals |= UART_MSR_DDSR;
-		}
-		if (mswap & UART_MSR_DDSR) {
-			msignals &= ~UART_MSR_DDSR;
-			msignals |= UART_MSR_DDCD;
-		}
-		if (mswap & UART_MSR_DCD) {
-			msignals &= ~UART_MSR_DCD;
-			msignals |= UART_MSR_DSR;
-		}
-		if (mswap & UART_MSR_DSR) {
-			msignals &= ~UART_MSR_DSR;
-			msignals |= UART_MSR_DCD;
-		}
-	}
-
-	/* Scrub off lower bits. They signify delta's, which I don't care about */
-	msignals &= 0xf0;
-
-	if (msignals & UART_MSR_DCD)
-		ch->ch_mistat |= UART_MSR_DCD;
-	else
-		ch->ch_mistat &= ~UART_MSR_DCD;
-
-	if (msignals & UART_MSR_DSR)
-		ch->ch_mistat |= UART_MSR_DSR;
-	else
-		ch->ch_mistat &= ~UART_MSR_DSR;
-
-	if (msignals & UART_MSR_RI)
-		ch->ch_mistat |= UART_MSR_RI;
-	else
-		ch->ch_mistat &= ~UART_MSR_RI;
-
-	if (msignals & UART_MSR_CTS)
-		ch->ch_mistat |= UART_MSR_CTS;
-	else
-		ch->ch_mistat &= ~UART_MSR_CTS;
-}
-
-
-/* Make the UART raise any of the output signals we want up */
-static void neo_assert_modem_signals(struct channel_t *ch)
-{
-	unsigned char out;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	out = ch->ch_mostat;
-
-	if (ch->ch_flags & CH_LOOPBACK)
-		out |= UART_MCR_LOOP;
-
-	writeb(out, &ch->ch_neo_uart->mcr);
-	neo_pci_posting_flush(ch->ch_bd);
-
-	/* Give time for the UART to actually raise/drop the signals */
-	udelay(10);
-}
-
-
-static void neo_send_start_character(struct channel_t *ch)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	if (ch->ch_startc != _POSIX_VDISABLE) {
-		ch->ch_xon_sends++;
-		writeb(ch->ch_startc, &ch->ch_neo_uart->txrx);
-		neo_pci_posting_flush(ch->ch_bd);
-		udelay(10);
-	}
-}
-
-
-static void neo_send_stop_character(struct channel_t *ch)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	if (ch->ch_stopc != _POSIX_VDISABLE) {
-		ch->ch_xoff_sends++;
-		writeb(ch->ch_stopc, &ch->ch_neo_uart->txrx);
-		neo_pci_posting_flush(ch->ch_bd);
-		udelay(10);
-	}
-}
-
-
-/*
- * neo_uart_init
- */
-static void neo_uart_init(struct channel_t *ch)
-{
-
-	writeb(0, &ch->ch_neo_uart->ier);
-	writeb(0, &ch->ch_neo_uart->efr);
-	writeb(UART_EFR_ECB, &ch->ch_neo_uart->efr);
-
-
-	/* Clear out UART and FIFO */
-	readb(&ch->ch_neo_uart->txrx);
-	writeb((UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr);
-	readb(&ch->ch_neo_uart->lsr);
-	readb(&ch->ch_neo_uart->msr);
-
-	ch->ch_flags |= CH_FIFO_ENABLED;
-
-	/* Assert any signals we want up */
-	writeb(ch->ch_mostat, &ch->ch_neo_uart->mcr);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-/*
- * Make the UART completely turn off.
- */
-static void neo_uart_off(struct channel_t *ch)
-{
-	/* Turn off UART enhanced bits */
-	writeb(0, &ch->ch_neo_uart->efr);
-
-	/* Stop all interrupts from occurring. */
-	writeb(0, &ch->ch_neo_uart->ier);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static uint neo_get_uart_bytes_left(struct channel_t *ch)
-{
-	unsigned char left = 0;
-	unsigned char lsr = readb(&ch->ch_neo_uart->lsr);
-
-	/* We must cache the LSR as some of the bits get reset once read... */
-	ch->ch_cached_lsr |= lsr;
-
-	/* Determine whether the Transmitter is empty or not */
-	if (!(lsr & UART_LSR_TEMT)) {
-		if (ch->ch_flags & CH_TX_FIFO_EMPTY)
-			tasklet_schedule(&ch->ch_bd->helper_tasklet);
-		left = 1;
-	} else {
-		ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);
-		left = 0;
-	}
-
-	return left;
-}
-
-
-/* Channel lock MUST be held by the calling function! */
-static void neo_send_break(struct channel_t *ch, int msecs)
-{
-	/*
-	 * If we receive a time of 0, this means turn off the break.
-	 */
-	if (msecs == 0) {
-		if (ch->ch_flags & CH_BREAK_SENDING) {
-			unsigned char temp = readb(&ch->ch_neo_uart->lcr);
-
-			writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr);
-			neo_pci_posting_flush(ch->ch_bd);
-			ch->ch_flags &= ~(CH_BREAK_SENDING);
-			ch->ch_stop_sending_break = 0;
-		}
-		return;
-	}
-
-	/*
-	 * Set the time we should stop sending the break.
-	 * If we are already sending a break, toss away the existing
-	 * time to stop, and use this new value instead.
-	 */
-	ch->ch_stop_sending_break = jiffies + dgnc_jiffies_from_ms(msecs);
-
-	/* Tell the UART to start sending the break */
-	if (!(ch->ch_flags & CH_BREAK_SENDING)) {
-		unsigned char temp = readb(&ch->ch_neo_uart->lcr);
-
-		writeb((temp | UART_LCR_SBC), &ch->ch_neo_uart->lcr);
-		neo_pci_posting_flush(ch->ch_bd);
-		ch->ch_flags |= (CH_BREAK_SENDING);
-	}
-}
-
-
-/*
- * neo_send_immediate_char.
- *
- * Sends a specific character as soon as possible to the UART,
- * jumping over any bytes that might be in the write queue.
- *
- * The channel lock MUST be held by the calling function.
- */
-static void neo_send_immediate_char(struct channel_t *ch, unsigned char c)
-{
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	writeb(c, &ch->ch_neo_uart->txrx);
-	neo_pci_posting_flush(ch->ch_bd);
-}
-
-
-static unsigned int neo_read_eeprom(unsigned char __iomem *base, unsigned int address)
-{
-	unsigned int enable;
-	unsigned int bits;
-	unsigned int databit;
-	unsigned int val;
-
-	/* enable chip select */
-	writeb(NEO_EECS, base + NEO_EEREG);
-	/* READ */
-	enable = (address | 0x180);
-
-	for (bits = 9; bits--; ) {
-		databit = (enable & (1 << bits)) ? NEO_EEDI : 0;
-		/* Set read address */
-		writeb(databit | NEO_EECS, base + NEO_EEREG);
-		writeb(databit | NEO_EECS | NEO_EECK, base + NEO_EEREG);
-	}
-
-	val = 0;
-
-	for (bits = 17; bits--; ) {
-		/* clock to EEPROM */
-		writeb(NEO_EECS, base + NEO_EEREG);
-		writeb(NEO_EECS | NEO_EECK, base + NEO_EEREG);
-		val <<= 1;
-		/* read EEPROM */
-		if (readb(base + NEO_EEREG) & NEO_EEDO)
-			val |= 1;
-	}
-
-	/* clock falling edge */
-	writeb(NEO_EECS, base + NEO_EEREG);
-
-	/* drop chip select */
-	writeb(0x00, base + NEO_EEREG);
-
-	return val;
-}
-
-
-static void neo_vpd(struct dgnc_board *brd)
-{
-	unsigned int i = 0;
-	unsigned int a;
-
-	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	if (!brd->re_map_membase)
-		return;
-
-	/* Store the VPD into our buffer */
-	for (i = 0; i < NEO_VPD_IMAGESIZE; i++) {
-		a = neo_read_eeprom(brd->re_map_membase, i);
-		brd->vpd[i*2] = a & 0xff;
-		brd->vpd[(i*2)+1] = (a >> 8) & 0xff;
-	}
-
-	if  (((brd->vpd[0x08] != 0x82)	   /* long resource name tag */
-		&&  (brd->vpd[0x10] != 0x82))   /* long resource name tag (PCI-66 files)*/
-		||  (brd->vpd[0x7F] != 0x78)) { /* small resource end tag */
-
-		memset(brd->vpd, '\0', NEO_VPD_IMAGESIZE);
-	} else {
-		/* Search for the serial number */
-		for (i = 0; i < NEO_VPD_IMAGEBYTES - 3; i++)
-			if (brd->vpd[i] == 'S' && brd->vpd[i + 1] == 'N')
-				strncpy(brd->serial_num, &(brd->vpd[i + 3]), 9);
-	}
-}
diff --git a/drivers/staging/dgnc/dgnc_neo.h b/drivers/staging/dgnc/dgnc_neo.h
deleted file mode 100644
index c528df5a0e5a..000000000000
--- a/drivers/staging/dgnc/dgnc_neo.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef __DGNC_NEO_H
-#define __DGNC_NEO_H
-
-#include "dgnc_driver.h"
-
-/************************************************************************
- * Per channel/port NEO UART structure					*
- ************************************************************************
- *		Base Structure Entries Usage Meanings to Host		*
- *									*
- *	W = read write		R = read only				*
- *			U = Unused.					*
- ************************************************************************/
-
-struct neo_uart_struct {
-	u8 txrx;		/* WR  RHR/THR - Holding Reg */
-	u8 ier;		/* WR  IER - Interrupt Enable Reg */
-	u8 isr_fcr;		/* WR  ISR/FCR - Interrupt Status Reg/Fifo Control Reg */
-	u8 lcr;		/* WR  LCR - Line Control Reg */
-	u8 mcr;		/* WR  MCR - Modem Control Reg */
-	u8 lsr;		/* WR  LSR - Line Status Reg */
-	u8 msr;		/* WR  MSR - Modem Status Reg */
-	u8 spr;		/* WR  SPR - Scratch Pad Reg */
-	u8 fctr;		/* WR  FCTR - Feature Control Reg */
-	u8 efr;		/* WR  EFR - Enhanced Function Reg */
-	u8 tfifo;		/* WR  TXCNT/TXTRG - Transmit FIFO Reg */
-	u8 rfifo;		/* WR  RXCNT/RXTRG - Receive  FIFO Reg */
-	u8 xoffchar1;	/* WR  XOFF 1 - XOff Character 1 Reg */
-	u8 xoffchar2;	/* WR  XOFF 2 - XOff Character 2 Reg */
-	u8 xonchar1;	/* WR  XON 1 - Xon Character 1 Reg */
-	u8 xonchar2;	/* WR  XON 2 - XOn Character 2 Reg */
-
-	u8 reserved1[0x2ff - 0x200]; /* U   Reserved by Exar */
-	u8 txrxburst[64];	/* RW  64 bytes of RX/TX FIFO Data */
-	u8 reserved2[0x37f - 0x340]; /* U   Reserved by Exar */
-	u8 rxburst_with_errors[64];	/* R  64 bytes of RX FIFO Data + LSR */
-};
-
-/* Where to read the extended interrupt register (32bits instead of 8bits) */
-#define	UART_17158_POLL_ADDR_OFFSET	0x80
-
-/* These are the current dvid's of the Neo boards */
-#define UART_XR17C158_DVID 0x20
-#define UART_XR17D158_DVID 0x20
-#define UART_XR17E158_DVID 0x40
-
-#define NEO_EECK  0x10		/* Clock */
-#define NEO_EECS  0x20		/* Chip Select */
-#define NEO_EEDI  0x40		/* Data In  is an Output Pin */
-#define NEO_EEDO  0x80		/* Data Out is an Input Pin */
-#define NEO_EEREG 0x8E		/* offset to EEPROM control reg */
-
-
-#define NEO_VPD_IMAGESIZE 0x40	/* size of image to read from EEPROM in words */
-#define NEO_VPD_IMAGEBYTES (NEO_VPD_IMAGESIZE * 2)
-
-/*
- * These are the redefinitions for the FCTR on the XR17C158, since
- * Exar made them different than their earlier design. (XR16C854)
- */
-
-/* These are only applicable when table D is selected */
-#define UART_17158_FCTR_RTS_NODELAY	0x00
-#define UART_17158_FCTR_RTS_4DELAY	0x01
-#define UART_17158_FCTR_RTS_6DELAY	0x02
-#define UART_17158_FCTR_RTS_8DELAY	0x03
-#define UART_17158_FCTR_RTS_12DELAY	0x12
-#define UART_17158_FCTR_RTS_16DELAY	0x05
-#define UART_17158_FCTR_RTS_20DELAY	0x13
-#define UART_17158_FCTR_RTS_24DELAY	0x06
-#define UART_17158_FCTR_RTS_28DELAY	0x14
-#define UART_17158_FCTR_RTS_32DELAY	0x07
-#define UART_17158_FCTR_RTS_36DELAY	0x16
-#define UART_17158_FCTR_RTS_40DELAY	0x08
-#define UART_17158_FCTR_RTS_44DELAY	0x09
-#define UART_17158_FCTR_RTS_48DELAY	0x10
-#define UART_17158_FCTR_RTS_52DELAY	0x11
-
-#define UART_17158_FCTR_RTS_IRDA	0x10
-#define UART_17158_FCTR_RS485		0x20
-#define UART_17158_FCTR_TRGA		0x00
-#define UART_17158_FCTR_TRGB		0x40
-#define UART_17158_FCTR_TRGC		0x80
-#define UART_17158_FCTR_TRGD		0xC0
-
-/* 17158 trigger table selects.. */
-#define UART_17158_FCTR_BIT6		0x40
-#define UART_17158_FCTR_BIT7		0x80
-
-/* 17158 TX/RX memmapped buffer offsets */
-#define UART_17158_RX_FIFOSIZE		64
-#define UART_17158_TX_FIFOSIZE		64
-
-/* 17158 Extended IIR's */
-#define UART_17158_IIR_RDI_TIMEOUT	0x0C	/* Receiver data TIMEOUT */
-#define UART_17158_IIR_XONXOFF		0x10	/* Received an XON/XOFF char */
-#define UART_17158_IIR_HWFLOW_STATE_CHANGE 0x20	/* CTS/DSR or RTS/DTR state change */
-#define UART_17158_IIR_FIFO_ENABLED	0xC0	/* 16550 FIFOs are Enabled */
-
-/*
- * These are the extended interrupts that get sent
- * back to us from the UART's 32bit interrupt register
- */
-#define UART_17158_RX_LINE_STATUS	0x1	/* RX Ready */
-#define UART_17158_RXRDY_TIMEOUT	0x2	/* RX Ready Timeout */
-#define UART_17158_TXRDY		0x3	/* TX Ready */
-#define UART_17158_MSR			0x4	/* Modem State Change */
-#define UART_17158_TX_AND_FIFO_CLR	0x40	/* Transmitter Holding Reg Empty */
-#define UART_17158_RX_FIFO_DATA_ERROR	0x80	/* UART detected an RX FIFO Data error */
-
-/*
- * These are the EXTENDED definitions for the 17C158's Interrupt
- * Enable Register.
- */
-#define UART_17158_EFR_ECB	0x10	/* Enhanced control bit */
-#define UART_17158_EFR_IXON	0x2	/* Receiver compares Xon1/Xoff1 */
-#define UART_17158_EFR_IXOFF	0x8	/* Transmit Xon1/Xoff1 */
-#define UART_17158_EFR_RTSDTR	0x40	/* Auto RTS/DTR Flow Control Enable */
-#define UART_17158_EFR_CTSDSR	0x80	/* Auto CTS/DSR Flow COntrol Enable */
-
-#define UART_17158_XOFF_DETECT	0x1	/* Indicates whether chip saw an incoming XOFF char  */
-#define UART_17158_XON_DETECT	0x2	/* Indicates whether chip saw an incoming XON char */
-
-#define UART_17158_IER_RSVD1	0x10	/* Reserved by Exar */
-#define UART_17158_IER_XOFF	0x20	/* Xoff Interrupt Enable */
-#define UART_17158_IER_RTSDTR	0x40	/* Output Interrupt Enable */
-#define UART_17158_IER_CTSDSR	0x80	/* Input Interrupt Enable */
-
-/*
- * Our Global Variables
- */
-extern struct board_ops dgnc_neo_ops;
-
-#endif
diff --git a/drivers/staging/dgnc/dgnc_pci.h b/drivers/staging/dgnc/dgnc_pci.h
deleted file mode 100644
index 617d40d1ec19..000000000000
--- a/drivers/staging/dgnc/dgnc_pci.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef __DGNC_PCI_H
-#define __DGNC_PCI_H
-
-#define PCIMAX 32			/* maximum number of PCI boards */
-
-#define DIGI_VID				0x114F
-
-#define PCI_DEVICE_CLASSIC_4_DID		0x0028
-#define PCI_DEVICE_CLASSIC_8_DID		0x0029
-#define PCI_DEVICE_CLASSIC_4_422_DID		0x00D0
-#define PCI_DEVICE_CLASSIC_8_422_DID		0x00D1
-#define PCI_DEVICE_NEO_4_DID			0x00B0
-#define PCI_DEVICE_NEO_8_DID			0x00B1
-#define PCI_DEVICE_NEO_2DB9_DID			0x00C8
-#define PCI_DEVICE_NEO_2DB9PRI_DID		0x00C9
-#define PCI_DEVICE_NEO_2RJ45_DID		0x00CA
-#define PCI_DEVICE_NEO_2RJ45PRI_DID		0x00CB
-#define PCI_DEVICE_NEO_1_422_DID		0x00CC
-#define PCI_DEVICE_NEO_1_422_485_DID		0x00CD
-#define PCI_DEVICE_NEO_2_422_485_DID		0x00CE
-#define PCI_DEVICE_NEO_EXPRESS_8_DID		0x00F0
-#define PCI_DEVICE_NEO_EXPRESS_4_DID		0x00F1
-#define PCI_DEVICE_NEO_EXPRESS_4RJ45_DID	0x00F2
-#define PCI_DEVICE_NEO_EXPRESS_8RJ45_DID	0x00F3
-#define PCI_DEVICE_NEO_EXPRESS_4_IBM_DID	0x00F4
-
-#define PCI_DEVICE_CLASSIC_4_PCI_NAME		"ClassicBoard 4 PCI"
-#define PCI_DEVICE_CLASSIC_8_PCI_NAME		"ClassicBoard 8 PCI"
-#define PCI_DEVICE_CLASSIC_4_422_PCI_NAME	"ClassicBoard 4 422 PCI"
-#define PCI_DEVICE_CLASSIC_8_422_PCI_NAME	"ClassicBoard 8 422 PCI"
-#define PCI_DEVICE_NEO_4_PCI_NAME		"Neo 4 PCI"
-#define PCI_DEVICE_NEO_8_PCI_NAME		"Neo 8 PCI"
-#define PCI_DEVICE_NEO_2DB9_PCI_NAME		"Neo 2 - DB9 Universal PCI"
-#define PCI_DEVICE_NEO_2DB9PRI_PCI_NAME		"Neo 2 - DB9 Universal PCI - Powered Ring Indicator"
-#define PCI_DEVICE_NEO_2RJ45_PCI_NAME		"Neo 2 - RJ45 Universal PCI"
-#define PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME	"Neo 2 - RJ45 Universal PCI - Powered Ring Indicator"
-#define PCI_DEVICE_NEO_1_422_PCI_NAME		"Neo 1 422 PCI"
-#define PCI_DEVICE_NEO_1_422_485_PCI_NAME	"Neo 1 422/485 PCI"
-#define PCI_DEVICE_NEO_2_422_485_PCI_NAME	"Neo 2 422/485 PCI"
-
-#define PCI_DEVICE_NEO_EXPRESS_8_PCI_NAME	"Neo 8 PCI Express"
-#define PCI_DEVICE_NEO_EXPRESS_4_PCI_NAME	"Neo 4 PCI Express"
-#define PCI_DEVICE_NEO_EXPRESS_4RJ45_PCI_NAME	"Neo 4 PCI Express RJ45"
-#define PCI_DEVICE_NEO_EXPRESS_8RJ45_PCI_NAME	"Neo 8 PCI Express RJ45"
-#define PCI_DEVICE_NEO_EXPRESS_4_IBM_PCI_NAME	"Neo 4 PCI Express IBM"
-
-
-/* Size of Memory and I/O for PCI (4 K) */
-#define PCI_RAM_SIZE				0x1000
-
-/* Size of Memory (2MB) */
-#define PCI_MEM_SIZE				0x1000
-
-#endif
diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c
deleted file mode 100644
index 44db8703eba4..000000000000
--- a/drivers/staging/dgnc/dgnc_sysfs.c
+++ /dev/null
@@ -1,735 +0,0 @@
-/*
- * Copyright 2004 Digi International (www.digi.com)
- *      Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/ctype.h>
-#include <linux/string.h>
-#include <linux/serial_reg.h>
-#include <linux/device.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-
-#include "dgnc_driver.h"
-#include "dgnc_mgmt.h"
-
-
-static ssize_t dgnc_driver_version_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%s\n", DG_PART);
-}
-static DRIVER_ATTR(version, S_IRUSR, dgnc_driver_version_show, NULL);
-
-
-static ssize_t dgnc_driver_boards_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n", dgnc_NumBoards);
-}
-static DRIVER_ATTR(boards, S_IRUSR, dgnc_driver_boards_show, NULL);
-
-
-static ssize_t dgnc_driver_maxboards_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n", MAXBOARDS);
-}
-static DRIVER_ATTR(maxboards, S_IRUSR, dgnc_driver_maxboards_show, NULL);
-
-
-static ssize_t dgnc_driver_pollrate_show(struct device_driver *ddp, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%dms\n", dgnc_poll_tick);
-}
-
-static ssize_t dgnc_driver_pollrate_store(struct device_driver *ddp,
-					  const char *buf, size_t count)
-{
-	int ret;
-
-	ret = sscanf(buf, "%d\n", &dgnc_poll_tick);
-	if (ret != 1)
-		return -EINVAL;
-	return count;
-}
-static DRIVER_ATTR(pollrate, (S_IRUSR | S_IWUSR), dgnc_driver_pollrate_show,
-		   dgnc_driver_pollrate_store);
-
-
-void dgnc_create_driver_sysfiles(struct pci_driver *dgnc_driver)
-{
-	int rc = 0;
-	struct device_driver *driverfs = &dgnc_driver->driver;
-
-	rc |= driver_create_file(driverfs, &driver_attr_version);
-	rc |= driver_create_file(driverfs, &driver_attr_boards);
-	rc |= driver_create_file(driverfs, &driver_attr_maxboards);
-	rc |= driver_create_file(driverfs, &driver_attr_pollrate);
-	if (rc)
-		pr_err("DGNC: sysfs driver_create_file failed!\n");
-}
-
-
-void dgnc_remove_driver_sysfiles(struct pci_driver *dgnc_driver)
-{
-	struct device_driver *driverfs = &dgnc_driver->driver;
-
-	driver_remove_file(driverfs, &driver_attr_version);
-	driver_remove_file(driverfs, &driver_attr_boards);
-	driver_remove_file(driverfs, &driver_attr_maxboards);
-	driver_remove_file(driverfs, &driver_attr_pollrate);
-}
-
-
-#define DGNC_VERIFY_BOARD(p, bd)				\
-	do {							\
-		if (!p)						\
-			return 0;				\
-								\
-		bd = dev_get_drvdata(p);			\
-		if (!bd || bd->magic != DGNC_BOARD_MAGIC)	\
-			return 0;				\
-		if (bd->state != BOARD_READY)			\
-			return 0;				\
-	} while (0)
-
-
-
-static ssize_t dgnc_vpd_show(struct device *p, struct device_attribute *attr,
-			     char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	count += sprintf(buf + count,
-		"\n      0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F");
-	for (i = 0; i < 0x40 * 2; i++) {
-		if (!(i % 16))
-			count += sprintf(buf + count, "\n%04X ", i * 2);
-		count += sprintf(buf + count, "%02X ", bd->vpd[i]);
-	}
-	count += sprintf(buf + count, "\n");
-
-	return count;
-}
-static DEVICE_ATTR(vpd, S_IRUSR, dgnc_vpd_show, NULL);
-
-static ssize_t dgnc_serial_number_show(struct device *p,
-				       struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	if (bd->serial_num[0] == '\0')
-		count += sprintf(buf + count, "<UNKNOWN>\n");
-	else
-		count += sprintf(buf + count, "%s\n", bd->serial_num);
-
-	return count;
-}
-static DEVICE_ATTR(serial_number, S_IRUSR, dgnc_serial_number_show, NULL);
-
-
-static ssize_t dgnc_ports_state_show(struct device *p,
-				     struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count,
-			"%d %s\n", bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_open_count ? "Open" : "Closed");
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_state, S_IRUSR, dgnc_ports_state_show, NULL);
-
-
-static ssize_t dgnc_ports_baud_show(struct device *p,
-				    struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count +=  snprintf(buf + count, PAGE_SIZE - count,
-			"%d %d\n", bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_old_baud);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_baud, S_IRUSR, dgnc_ports_baud_show, NULL);
-
-
-static ssize_t dgnc_ports_msignals_show(struct device *p,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		if (bd->channels[i]->ch_open_count) {
-			count += snprintf(buf + count, PAGE_SIZE - count,
-				"%d %s %s %s %s %s %s\n",
-				bd->channels[i]->ch_portnum,
-				(bd->channels[i]->ch_mostat & UART_MCR_RTS) ? "RTS" : "",
-				(bd->channels[i]->ch_mistat & UART_MSR_CTS) ? "CTS" : "",
-				(bd->channels[i]->ch_mostat & UART_MCR_DTR) ? "DTR" : "",
-				(bd->channels[i]->ch_mistat & UART_MSR_DSR) ? "DSR" : "",
-				(bd->channels[i]->ch_mistat & UART_MSR_DCD) ? "DCD" : "",
-				(bd->channels[i]->ch_mistat & UART_MSR_RI)  ? "RI"  : "");
-		} else {
-			count += snprintf(buf + count, PAGE_SIZE - count,
-				"%d\n", bd->channels[i]->ch_portnum);
-		}
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_msignals, S_IRUSR, dgnc_ports_msignals_show, NULL);
-
-
-static ssize_t dgnc_ports_iflag_show(struct device *p,
-				     struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-			bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_c_iflag);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_iflag, S_IRUSR, dgnc_ports_iflag_show, NULL);
-
-
-static ssize_t dgnc_ports_cflag_show(struct device *p,
-				     struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-			bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_c_cflag);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_cflag, S_IRUSR, dgnc_ports_cflag_show, NULL);
-
-
-static ssize_t dgnc_ports_oflag_show(struct device *p,
-				     struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-			bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_c_oflag);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_oflag, S_IRUSR, dgnc_ports_oflag_show, NULL);
-
-
-static ssize_t dgnc_ports_lflag_show(struct device *p,
-				     struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-			bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_c_lflag);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_lflag, S_IRUSR, dgnc_ports_lflag_show, NULL);
-
-
-static ssize_t dgnc_ports_digi_flag_show(struct device *p,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %x\n",
-			bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_digi.digi_flags);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_digi_flag, S_IRUSR, dgnc_ports_digi_flag_show, NULL);
-
-
-static ssize_t dgnc_ports_rxcount_show(struct device *p,
-				       struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n",
-			bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_rxcount);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_rxcount, S_IRUSR, dgnc_ports_rxcount_show, NULL);
-
-
-static ssize_t dgnc_ports_txcount_show(struct device *p,
-				       struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	int count = 0;
-	int i = 0;
-
-	DGNC_VERIFY_BOARD(p, bd);
-
-	for (i = 0; i < bd->nasync; i++) {
-		count += snprintf(buf + count, PAGE_SIZE - count, "%d %ld\n",
-			bd->channels[i]->ch_portnum,
-			bd->channels[i]->ch_txcount);
-	}
-	return count;
-}
-static DEVICE_ATTR(ports_txcount, S_IRUSR, dgnc_ports_txcount_show, NULL);
-
-
-/* this function creates the sys files that will export each signal status
- * to sysfs each value will be put in a separate filename
- */
-void dgnc_create_ports_sysfiles(struct dgnc_board *bd)
-{
-	int rc = 0;
-
-	dev_set_drvdata(&bd->pdev->dev, bd);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_state);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_baud);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_msignals);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_iflag);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_cflag);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_oflag);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_lflag);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_rxcount);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_ports_txcount);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_vpd);
-	rc |= device_create_file(&(bd->pdev->dev), &dev_attr_serial_number);
-	if (rc)
-		dev_err(&bd->pdev->dev, "dgnc: sysfs device_create_file failed!\n");
-}
-
-
-/* removes all the sys files created for that port */
-void dgnc_remove_ports_sysfiles(struct dgnc_board *bd)
-{
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_state);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_baud);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_msignals);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_iflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_cflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_oflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_lflag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_digi_flag);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_rxcount);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_txcount);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_vpd);
-	device_remove_file(&(bd->pdev->dev), &dev_attr_serial_number);
-}
-
-
-static ssize_t dgnc_tty_state_show(struct device *d,
-				   struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%s",
-			un->un_open_count ? "Open" : "Closed");
-}
-static DEVICE_ATTR(state, S_IRUSR, dgnc_tty_state_show, NULL);
-
-
-static ssize_t dgnc_tty_baud_show(struct device *d,
-				  struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_old_baud);
-}
-static DEVICE_ATTR(baud, S_IRUSR, dgnc_tty_baud_show, NULL);
-
-
-static ssize_t dgnc_tty_msignals_show(struct device *d,
-				      struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	if (ch->ch_open_count) {
-		return snprintf(buf, PAGE_SIZE, "%s %s %s %s %s %s\n",
-			(ch->ch_mostat & UART_MCR_RTS) ? "RTS" : "",
-			(ch->ch_mistat & UART_MSR_CTS) ? "CTS" : "",
-			(ch->ch_mostat & UART_MCR_DTR) ? "DTR" : "",
-			(ch->ch_mistat & UART_MSR_DSR) ? "DSR" : "",
-			(ch->ch_mistat & UART_MSR_DCD) ? "DCD" : "",
-			(ch->ch_mistat & UART_MSR_RI)  ? "RI"  : "");
-	}
-	return 0;
-}
-static DEVICE_ATTR(msignals, S_IRUSR, dgnc_tty_msignals_show, NULL);
-
-
-static ssize_t dgnc_tty_iflag_show(struct device *d,
-				   struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_iflag);
-}
-static DEVICE_ATTR(iflag, S_IRUSR, dgnc_tty_iflag_show, NULL);
-
-
-static ssize_t dgnc_tty_cflag_show(struct device *d,
-				   struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_cflag);
-}
-static DEVICE_ATTR(cflag, S_IRUSR, dgnc_tty_cflag_show, NULL);
-
-
-static ssize_t dgnc_tty_oflag_show(struct device *d,
-				   struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_oflag);
-}
-static DEVICE_ATTR(oflag, S_IRUSR, dgnc_tty_oflag_show, NULL);
-
-
-static ssize_t dgnc_tty_lflag_show(struct device *d,
-				   struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_lflag);
-}
-static DEVICE_ATTR(lflag, S_IRUSR, dgnc_tty_lflag_show, NULL);
-
-
-static ssize_t dgnc_tty_digi_flag_show(struct device *d,
-				       struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_digi.digi_flags);
-}
-static DEVICE_ATTR(digi_flag, S_IRUSR, dgnc_tty_digi_flag_show, NULL);
-
-
-static ssize_t dgnc_tty_rxcount_show(struct device *d,
-				     struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_rxcount);
-}
-static DEVICE_ATTR(rxcount, S_IRUSR, dgnc_tty_rxcount_show, NULL);
-
-
-static ssize_t dgnc_tty_txcount_show(struct device *d,
-				     struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_txcount);
-}
-static DEVICE_ATTR(txcount, S_IRUSR, dgnc_tty_txcount_show, NULL);
-
-
-static ssize_t dgnc_tty_name_show(struct device *d,
-				  struct device_attribute *attr, char *buf)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-
-	if (!d)
-		return 0;
-	un = dev_get_drvdata(d);
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return 0;
-	if (bd->state != BOARD_READY)
-		return 0;
-
-	return snprintf(buf, PAGE_SIZE, "%sn%d%c\n",
-		(un->un_type == DGNC_PRINT) ? "pr" : "tty",
-		bd->boardnum + 1, 'a' + ch->ch_portnum);
-}
-static DEVICE_ATTR(custom_name, S_IRUSR, dgnc_tty_name_show, NULL);
-
-
-static struct attribute *dgnc_sysfs_tty_entries[] = {
-	&dev_attr_state.attr,
-	&dev_attr_baud.attr,
-	&dev_attr_msignals.attr,
-	&dev_attr_iflag.attr,
-	&dev_attr_cflag.attr,
-	&dev_attr_oflag.attr,
-	&dev_attr_lflag.attr,
-	&dev_attr_digi_flag.attr,
-	&dev_attr_rxcount.attr,
-	&dev_attr_txcount.attr,
-	&dev_attr_custom_name.attr,
-	NULL
-};
-
-
-static struct attribute_group dgnc_tty_attribute_group = {
-	.name = NULL,
-	.attrs = dgnc_sysfs_tty_entries,
-};
-
-
-void dgnc_create_tty_sysfs(struct un_t *un, struct device *c)
-{
-	int ret;
-
-	ret = sysfs_create_group(&c->kobj, &dgnc_tty_attribute_group);
-	if (ret) {
-		dev_err(c, "dgnc: failed to create sysfs tty device attributes.\n");
-		sysfs_remove_group(&c->kobj, &dgnc_tty_attribute_group);
-		return;
-	}
-
-	dev_set_drvdata(c, un);
-
-}
-
-
-void dgnc_remove_tty_sysfs(struct device *c)
-{
-	sysfs_remove_group(&c->kobj, &dgnc_tty_attribute_group);
-}
-
diff --git a/drivers/staging/dgnc/dgnc_sysfs.h b/drivers/staging/dgnc/dgnc_sysfs.h
deleted file mode 100644
index 7be7d55bc49e..000000000000
--- a/drivers/staging/dgnc/dgnc_sysfs.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef __DGNC_SYSFS_H
-#define __DGNC_SYSFS_H
-
-#include <linux/device.h>
-#include "dgnc_driver.h"
-
-struct dgnc_board;
-struct channel_t;
-struct un_t;
-struct pci_driver;
-struct class_device;
-
-void dgnc_create_ports_sysfiles(struct dgnc_board *bd);
-void dgnc_remove_ports_sysfiles(struct dgnc_board *bd);
-
-void dgnc_create_driver_sysfiles(struct pci_driver *);
-void dgnc_remove_driver_sysfiles(struct pci_driver *);
-
-int dgnc_tty_class_init(void);
-int dgnc_tty_class_destroy(void);
-
-void dgnc_create_tty_sysfs(struct un_t *un, struct device *c);
-void dgnc_remove_tty_sysfs(struct device *c);
-
-#endif
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
deleted file mode 100644
index fbfe79a70263..000000000000
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ /dev/null
@@ -1,2999 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-/************************************************************************
- *
- * This file implements the tty driver functionality for the
- * Neo and ClassicBoard PCI based product lines.
- *
- ************************************************************************
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>	/* For jiffies, task states */
-#include <linux/interrupt.h>	/* For tasklet and interrupt structs/defines */
-#include <linux/module.h>
-#include <linux/ctype.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/types.h>
-#include <linux/serial_reg.h>
-#include <linux/slab.h>
-#include <linux/delay.h>	/* For udelay */
-#include <linux/uaccess.h>	/* For copy_from_user/copy_to_user */
-#include <linux/pci.h>
-#include "dgnc_driver.h"
-#include "dgnc_tty.h"
-#include "dgnc_neo.h"
-#include "dgnc_cls.h"
-#include "dgnc_sysfs.h"
-#include "dgnc_utils.h"
-
-/*
- * internal variables
- */
-static struct dgnc_board	*dgnc_BoardsByMajor[256];
-static unsigned char		*dgnc_TmpWriteBuf;
-
-/*
- * Default transparent print information.
- */
-static struct digi_t dgnc_digi_init = {
-	.digi_flags =	DIGI_COOK,	/* Flags			*/
-	.digi_maxcps =	100,		/* Max CPS			*/
-	.digi_maxchar =	50,		/* Max chars in print queue	*/
-	.digi_bufsize =	100,		/* Printer buffer size		*/
-	.digi_onlen =	4,		/* size of printer on string	*/
-	.digi_offlen =	4,		/* size of printer off string	*/
-	.digi_onstr =	"\033[5i",	/* ANSI printer on string ]	*/
-	.digi_offstr =	"\033[4i",	/* ANSI printer off string ]	*/
-	.digi_term =	"ansi"		/* default terminal type	*/
-};
-
-
-/*
- * Define a local default termios struct. All ports will be created
- * with this termios initially.
- *
- * This defines a raw port at 9600 baud, 8 data bits, no parity,
- * 1 stop bit.
- */
-static struct ktermios DgncDefaultTermios = {
-	.c_iflag =	(DEFAULT_IFLAGS),	/* iflags */
-	.c_oflag =	(DEFAULT_OFLAGS),	/* oflags */
-	.c_cflag =	(DEFAULT_CFLAGS),	/* cflags */
-	.c_lflag =	(DEFAULT_LFLAGS),	/* lflags */
-	.c_cc =		INIT_C_CC,
-	.c_line =	0,
-};
-
-
-/* Our function prototypes */
-static int dgnc_tty_open(struct tty_struct *tty, struct file *file);
-static void dgnc_tty_close(struct tty_struct *tty, struct file *file);
-static int dgnc_block_til_ready(struct tty_struct *tty, struct file *file, struct channel_t *ch);
-static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
-static int dgnc_tty_digigeta(struct tty_struct *tty, struct digi_t __user *retinfo);
-static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_info);
-static int dgnc_tty_write_room(struct tty_struct *tty);
-static int dgnc_tty_put_char(struct tty_struct *tty, unsigned char c);
-static int dgnc_tty_chars_in_buffer(struct tty_struct *tty);
-static void dgnc_tty_start(struct tty_struct *tty);
-static void dgnc_tty_stop(struct tty_struct *tty);
-static void dgnc_tty_throttle(struct tty_struct *tty);
-static void dgnc_tty_unthrottle(struct tty_struct *tty);
-static void dgnc_tty_flush_chars(struct tty_struct *tty);
-static void dgnc_tty_flush_buffer(struct tty_struct *tty);
-static void dgnc_tty_hangup(struct tty_struct *tty);
-static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, unsigned int __user *value);
-static int dgnc_get_modem_info(struct channel_t *ch, unsigned int __user *value);
-static int dgnc_tty_tiocmget(struct tty_struct *tty);
-static int dgnc_tty_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear);
-static int dgnc_tty_send_break(struct tty_struct *tty, int msec);
-static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout);
-static int dgnc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count);
-static void dgnc_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios);
-static void dgnc_tty_send_xchar(struct tty_struct *tty, char ch);
-
-
-static const struct tty_operations dgnc_tty_ops = {
-	.open = dgnc_tty_open,
-	.close = dgnc_tty_close,
-	.write = dgnc_tty_write,
-	.write_room = dgnc_tty_write_room,
-	.flush_buffer = dgnc_tty_flush_buffer,
-	.chars_in_buffer = dgnc_tty_chars_in_buffer,
-	.flush_chars = dgnc_tty_flush_chars,
-	.ioctl = dgnc_tty_ioctl,
-	.set_termios = dgnc_tty_set_termios,
-	.stop = dgnc_tty_stop,
-	.start = dgnc_tty_start,
-	.throttle = dgnc_tty_throttle,
-	.unthrottle = dgnc_tty_unthrottle,
-	.hangup = dgnc_tty_hangup,
-	.put_char = dgnc_tty_put_char,
-	.tiocmget = dgnc_tty_tiocmget,
-	.tiocmset = dgnc_tty_tiocmset,
-	.break_ctl = dgnc_tty_send_break,
-	.wait_until_sent = dgnc_tty_wait_until_sent,
-	.send_xchar = dgnc_tty_send_xchar
-};
-
-/************************************************************************
- *
- * TTY Initialization/Cleanup Functions
- *
- ************************************************************************/
-
-/*
- * dgnc_tty_preinit()
- *
- * Initialize any global tty related data before we download any boards.
- */
-int dgnc_tty_preinit(void)
-{
-	/*
-	 * Allocate a buffer for doing the copy from user space to
-	 * kernel space in dgnc_write().  We only use one buffer and
-	 * control access to it with a semaphore.  If we are paging, we
-	 * are already in trouble so one buffer won't hurt much anyway.
-	 *
-	 * We are okay to sleep in the malloc, as this routine
-	 * is only called during module load, (not in interrupt context),
-	 * and with no locks held.
-	 */
-	dgnc_TmpWriteBuf = kmalloc(WRITEBUFLEN, GFP_KERNEL);
-
-	if (!dgnc_TmpWriteBuf)
-		return -ENOMEM;
-
-	return 0;
-}
-
-
-/*
- * dgnc_tty_register()
- *
- * Init the tty subsystem for this board.
- */
-int dgnc_tty_register(struct dgnc_board *brd)
-{
-	int rc = 0;
-
-	brd->SerialDriver.magic = TTY_DRIVER_MAGIC;
-
-	snprintf(brd->SerialName, MAXTTYNAMELEN, "tty_dgnc_%d_", brd->boardnum);
-
-	brd->SerialDriver.name = brd->SerialName;
-	brd->SerialDriver.name_base = 0;
-	brd->SerialDriver.major = 0;
-	brd->SerialDriver.minor_start = 0;
-	brd->SerialDriver.num = brd->maxports;
-	brd->SerialDriver.type = TTY_DRIVER_TYPE_SERIAL;
-	brd->SerialDriver.subtype = SERIAL_TYPE_NORMAL;
-	brd->SerialDriver.init_termios = DgncDefaultTermios;
-	brd->SerialDriver.driver_name = DRVSTR;
-	brd->SerialDriver.flags = (TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK);
-
-	/*
-	 * The kernel wants space to store pointers to
-	 * tty_struct's and termios's.
-	 */
-	brd->SerialDriver.ttys = kcalloc(brd->maxports, sizeof(*brd->SerialDriver.ttys), GFP_KERNEL);
-	if (!brd->SerialDriver.ttys)
-		return -ENOMEM;
-
-	kref_init(&brd->SerialDriver.kref);
-	brd->SerialDriver.termios = kcalloc(brd->maxports, sizeof(*brd->SerialDriver.termios), GFP_KERNEL);
-	if (!brd->SerialDriver.termios)
-		return -ENOMEM;
-
-	/*
-	 * Entry points for driver.  Called by the kernel from
-	 * tty_io.c and n_tty.c.
-	 */
-	tty_set_operations(&brd->SerialDriver, &dgnc_tty_ops);
-
-	if (!brd->dgnc_Major_Serial_Registered) {
-		/* Register tty devices */
-		rc = tty_register_driver(&brd->SerialDriver);
-		if (rc < 0) {
-			dev_dbg(&brd->pdev->dev,
-				"Can't register tty device (%d)\n", rc);
-			return rc;
-		}
-		brd->dgnc_Major_Serial_Registered = true;
-	}
-
-	/*
-	 * If we're doing transparent print, we have to do all of the above
-	 * again, separately so we don't get the LD confused about what major
-	 * we are when we get into the dgnc_tty_open() routine.
-	 */
-	brd->PrintDriver.magic = TTY_DRIVER_MAGIC;
-	snprintf(brd->PrintName, MAXTTYNAMELEN, "pr_dgnc_%d_", brd->boardnum);
-
-	brd->PrintDriver.name = brd->PrintName;
-	brd->PrintDriver.name_base = 0;
-	brd->PrintDriver.major = brd->SerialDriver.major;
-	brd->PrintDriver.minor_start = 0x80;
-	brd->PrintDriver.num = brd->maxports;
-	brd->PrintDriver.type = TTY_DRIVER_TYPE_SERIAL;
-	brd->PrintDriver.subtype = SERIAL_TYPE_NORMAL;
-	brd->PrintDriver.init_termios = DgncDefaultTermios;
-	brd->PrintDriver.driver_name = DRVSTR;
-	brd->PrintDriver.flags = (TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK);
-
-	/*
-	 * The kernel wants space to store pointers to
-	 * tty_struct's and termios's.  Must be separated from
-	 * the Serial Driver so we don't get confused
-	 */
-	brd->PrintDriver.ttys = kcalloc(brd->maxports, sizeof(*brd->PrintDriver.ttys), GFP_KERNEL);
-	if (!brd->PrintDriver.ttys)
-		return -ENOMEM;
-	kref_init(&brd->PrintDriver.kref);
-	brd->PrintDriver.termios = kcalloc(brd->maxports, sizeof(*brd->PrintDriver.termios), GFP_KERNEL);
-	if (!brd->PrintDriver.termios)
-		return -ENOMEM;
-
-	/*
-	 * Entry points for driver.  Called by the kernel from
-	 * tty_io.c and n_tty.c.
-	 */
-	tty_set_operations(&brd->PrintDriver, &dgnc_tty_ops);
-
-	if (!brd->dgnc_Major_TransparentPrint_Registered) {
-		/* Register Transparent Print devices */
-		rc = tty_register_driver(&brd->PrintDriver);
-		if (rc < 0) {
-			dev_dbg(&brd->pdev->dev,
-				"Can't register Transparent Print device(%d)\n",
-				rc);
-			return rc;
-		}
-		brd->dgnc_Major_TransparentPrint_Registered = true;
-	}
-
-	dgnc_BoardsByMajor[brd->SerialDriver.major] = brd;
-	brd->dgnc_Serial_Major = brd->SerialDriver.major;
-	brd->dgnc_TransparentPrint_Major = brd->PrintDriver.major;
-
-	return rc;
-}
-
-
-/*
- * dgnc_tty_init()
- *
- * Init the tty subsystem.  Called once per board after board has been
- * downloaded and init'ed.
- */
-int dgnc_tty_init(struct dgnc_board *brd)
-{
-	int i;
-	void __iomem *vaddr;
-	struct channel_t *ch;
-
-	if (!brd)
-		return -ENXIO;
-
-	/*
-	 * Initialize board structure elements.
-	 */
-
-	vaddr = brd->re_map_membase;
-
-	brd->nasync = brd->maxports;
-
-	for (i = 0; i < brd->nasync; i++) {
-		/*
-		 * Okay to malloc with GFP_KERNEL, we are not at
-		 * interrupt context, and there are no locks held.
-		 */
-		brd->channels[i] = kzalloc(sizeof(*brd->channels[i]),
-					   GFP_KERNEL);
-		if (!brd->channels[i])
-			goto err_free_channels;
-	}
-
-	ch = brd->channels[0];
-	vaddr = brd->re_map_membase;
-
-	/* Set up channel variables */
-	for (i = 0; i < brd->nasync; i++, ch = brd->channels[i]) {
-		spin_lock_init(&ch->ch_lock);
-
-		/* Store all our magic numbers */
-		ch->magic = DGNC_CHANNEL_MAGIC;
-		ch->ch_tun.magic = DGNC_UNIT_MAGIC;
-		ch->ch_tun.un_ch = ch;
-		ch->ch_tun.un_type = DGNC_SERIAL;
-		ch->ch_tun.un_dev = i;
-
-		ch->ch_pun.magic = DGNC_UNIT_MAGIC;
-		ch->ch_pun.un_ch = ch;
-		ch->ch_pun.un_type = DGNC_PRINT;
-		ch->ch_pun.un_dev = i + 128;
-
-		if (brd->bd_uart_offset == 0x200)
-			ch->ch_neo_uart = vaddr + (brd->bd_uart_offset * i);
-		else
-			ch->ch_cls_uart = vaddr + (brd->bd_uart_offset * i);
-
-		ch->ch_bd = brd;
-		ch->ch_portnum = i;
-		ch->ch_digi = dgnc_digi_init;
-
-		/* .25 second delay */
-		ch->ch_close_delay = 250;
-
-		init_waitqueue_head(&ch->ch_flags_wait);
-		init_waitqueue_head(&ch->ch_tun.un_flags_wait);
-		init_waitqueue_head(&ch->ch_pun.un_flags_wait);
-
-		{
-			struct device *classp;
-
-			classp = tty_register_device(&brd->SerialDriver, i,
-				&(ch->ch_bd->pdev->dev));
-			ch->ch_tun.un_sysfs = classp;
-			dgnc_create_tty_sysfs(&ch->ch_tun, classp);
-
-			classp = tty_register_device(&brd->PrintDriver, i,
-				&(ch->ch_bd->pdev->dev));
-			ch->ch_pun.un_sysfs = classp;
-			dgnc_create_tty_sysfs(&ch->ch_pun, classp);
-		}
-
-	}
-
-	return 0;
-
-err_free_channels:
-	for (i = i - 1; i >= 0; --i) {
-		kfree(brd->channels[i]);
-		brd->channels[i] = NULL;
-	}
-	return -ENOMEM;
-}
-
-
-/*
- * dgnc_tty_post_uninit()
- *
- * UnInitialize any global tty related data.
- */
-void dgnc_tty_post_uninit(void)
-{
-	kfree(dgnc_TmpWriteBuf);
-	dgnc_TmpWriteBuf = NULL;
-}
-
-
-/*
- * dgnc_tty_uninit()
- *
- * Uninitialize the TTY portion of this driver.  Free all memory and
- * resources.
- */
-void dgnc_tty_uninit(struct dgnc_board *brd)
-{
-	int i = 0;
-
-	if (brd->dgnc_Major_Serial_Registered) {
-		dgnc_BoardsByMajor[brd->SerialDriver.major] = NULL;
-		brd->dgnc_Serial_Major = 0;
-		for (i = 0; i < brd->nasync; i++) {
-			if (brd->channels[i])
-				dgnc_remove_tty_sysfs(brd->channels[i]->
-						      ch_tun.un_sysfs);
-			tty_unregister_device(&brd->SerialDriver, i);
-		}
-		tty_unregister_driver(&brd->SerialDriver);
-		brd->dgnc_Major_Serial_Registered = false;
-	}
-
-	if (brd->dgnc_Major_TransparentPrint_Registered) {
-		dgnc_BoardsByMajor[brd->PrintDriver.major] = NULL;
-		brd->dgnc_TransparentPrint_Major = 0;
-		for (i = 0; i < brd->nasync; i++) {
-			if (brd->channels[i])
-				dgnc_remove_tty_sysfs(brd->channels[i]->
-						      ch_pun.un_sysfs);
-			tty_unregister_device(&brd->PrintDriver, i);
-		}
-		tty_unregister_driver(&brd->PrintDriver);
-		brd->dgnc_Major_TransparentPrint_Registered = false;
-	}
-
-	kfree(brd->SerialDriver.ttys);
-	brd->SerialDriver.ttys = NULL;
-	kfree(brd->SerialDriver.termios);
-	brd->SerialDriver.termios = NULL;
-	kfree(brd->PrintDriver.ttys);
-	brd->PrintDriver.ttys = NULL;
-	kfree(brd->PrintDriver.termios);
-	brd->PrintDriver.termios = NULL;
-}
-
-/*=======================================================================
- *
- *	dgnc_wmove - Write data to transmit queue.
- *
- *		ch	- Pointer to channel structure.
- *		buf	- Poiter to characters to be moved.
- *		n	- Number of characters to move.
- *
- *=======================================================================*/
-static void dgnc_wmove(struct channel_t *ch, char *buf, uint n)
-{
-	int	remain;
-	uint	head;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	head = ch->ch_w_head & WQUEUEMASK;
-
-	/*
-	 * If the write wraps over the top of the circular buffer,
-	 * move the portion up to the wrap point, and reset the
-	 * pointers to the bottom.
-	 */
-	remain = WQUEUESIZE - head;
-
-	if (n >= remain) {
-		n -= remain;
-		memcpy(ch->ch_wqueue + head, buf, remain);
-		head = 0;
-		buf += remain;
-	}
-
-	if (n > 0) {
-		/*
-		 * Move rest of data.
-		 */
-		remain = n;
-		memcpy(ch->ch_wqueue + head, buf, remain);
-		head += remain;
-	}
-
-	head &= WQUEUEMASK;
-	ch->ch_w_head = head;
-}
-
-
-
-
-/*=======================================================================
- *
- *      dgnc_input - Process received data.
- *
- *	      ch      - Pointer to channel structure.
- *
- *=======================================================================*/
-void dgnc_input(struct channel_t *ch)
-{
-	struct dgnc_board *bd;
-	struct tty_struct *tp;
-	struct tty_ldisc *ld = NULL;
-	uint	rmask;
-	ushort	head;
-	ushort	tail;
-	int	data_len;
-	unsigned long flags;
-	int flip_len;
-	int len = 0;
-	int n = 0;
-	int s = 0;
-	int i = 0;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	tp = ch->ch_tun.un_tty;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/*
-	 *      Figure the number of characters in the buffer.
-	 *      Exit immediately if none.
-	 */
-	rmask = RQUEUEMASK;
-	head = ch->ch_r_head & rmask;
-	tail = ch->ch_r_tail & rmask;
-	data_len = (head - tail) & rmask;
-
-	if (data_len == 0)
-		goto exit_unlock;
-
-	/*
-	 * If the device is not open, or CREAD is off,
-	 * flush input data and return immediately.
-	 */
-	if (!tp || (tp->magic != TTY_MAGIC) || !(ch->ch_tun.un_flags & UN_ISOPEN) ||
-	    !(tp->termios.c_cflag & CREAD) || (ch->ch_tun.un_flags & UN_CLOSING)) {
-
-		ch->ch_r_head = tail;
-
-		/* Force queue flow control to be released, if needed */
-		dgnc_check_queue_flow_control(ch);
-
-		goto exit_unlock;
-	}
-
-	/*
-	 * If we are throttled, simply don't read any data.
-	 */
-	if (ch->ch_flags & CH_FORCED_STOPI)
-		goto exit_unlock;
-
-	flip_len = TTY_FLIPBUF_SIZE;
-
-	/* Chop down the length, if needed */
-	len = min(data_len, flip_len);
-	len = min(len, (N_TTY_BUF_SIZE - 1));
-
-	ld = tty_ldisc_ref(tp);
-
-	/*
-	 * If we were unable to get a reference to the ld,
-	 * don't flush our buffer, and act like the ld doesn't
-	 * have any space to put the data right now.
-	 */
-	if (!ld) {
-		len = 0;
-	} else {
-		/*
-		 * If ld doesn't have a pointer to a receive_buf function,
-		 * flush the data, then act like the ld doesn't have any
-		 * space to put the data right now.
-		 */
-		if (!ld->ops->receive_buf) {
-			ch->ch_r_head = ch->ch_r_tail;
-			len = 0;
-		}
-	}
-
-	if (len <= 0)
-		goto exit_unlock;
-
-	/*
-	 * The tty layer in the kernel has changed in 2.6.16+.
-	 *
-	 * The flip buffers in the tty structure are no longer exposed,
-	 * and probably will be going away eventually.
-	 *
-	 * If we are completely raw, we don't need to go through a lot
-	 * of the tty layers that exist.
-	 * In this case, we take the shortest and fastest route we
-	 * can to relay the data to the user.
-	 *
-	 * On the other hand, if we are not raw, we need to go through
-	 * the new 2.6.16+ tty layer, which has its API more well defined.
-	 */
-	len = tty_buffer_request_room(tp->port, len);
-	n = len;
-
-	/*
-	 * n now contains the most amount of data we can copy,
-	 * bounded either by how much the Linux tty layer can handle,
-	 * or the amount of data the card actually has pending...
-	 */
-	while (n) {
-		s = ((head >= tail) ? head : RQUEUESIZE) - tail;
-		s = min(s, n);
-
-		if (s <= 0)
-			break;
-
-		/*
-		 * If conditions are such that ld needs to see all
-		 * UART errors, we will have to walk each character
-		 * and error byte and send them to the buffer one at
-		 * a time.
-		 */
-		if (I_PARMRK(tp) || I_BRKINT(tp) || I_INPCK(tp)) {
-			for (i = 0; i < s; i++) {
-				if (*(ch->ch_equeue + tail + i) & UART_LSR_BI)
-					tty_insert_flip_char(tp->port, *(ch->ch_rqueue + tail + i), TTY_BREAK);
-				else if (*(ch->ch_equeue + tail + i) & UART_LSR_PE)
-					tty_insert_flip_char(tp->port, *(ch->ch_rqueue + tail + i), TTY_PARITY);
-				else if (*(ch->ch_equeue + tail + i) & UART_LSR_FE)
-					tty_insert_flip_char(tp->port, *(ch->ch_rqueue + tail + i), TTY_FRAME);
-				else
-					tty_insert_flip_char(tp->port, *(ch->ch_rqueue + tail + i), TTY_NORMAL);
-			}
-		} else {
-			tty_insert_flip_string(tp->port, ch->ch_rqueue + tail, s);
-		}
-
-		tail += s;
-		n -= s;
-		/* Flip queue if needed */
-		tail &= rmask;
-	}
-
-	ch->ch_r_tail = tail & rmask;
-	ch->ch_e_tail = tail & rmask;
-	dgnc_check_queue_flow_control(ch);
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	/* Tell the tty layer its okay to "eat" the data now */
-	tty_flip_buffer_push(tp->port);
-
-	if (ld)
-		tty_ldisc_deref(ld);
-	return;
-
-exit_unlock:
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-	if (ld)
-		tty_ldisc_deref(ld);
-}
-
-
-/************************************************************************
- * Determines when CARRIER changes state and takes appropriate
- * action.
- ************************************************************************/
-void dgnc_carrier(struct channel_t *ch)
-{
-	struct dgnc_board *bd;
-
-	int virt_carrier = 0;
-	int phys_carrier = 0;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	if (ch->ch_mistat & UART_MSR_DCD)
-		phys_carrier = 1;
-
-	if (ch->ch_digi.digi_flags & DIGI_FORCEDCD)
-		virt_carrier = 1;
-
-	if (ch->ch_c_cflag & CLOCAL)
-		virt_carrier = 1;
-
-	/*
-	 * Test for a VIRTUAL carrier transition to HIGH.
-	 */
-	if (((ch->ch_flags & CH_FCAR) == 0) && (virt_carrier == 1)) {
-
-		/*
-		 * When carrier rises, wake any threads waiting
-		 * for carrier in the open routine.
-		 */
-
-		if (waitqueue_active(&(ch->ch_flags_wait)))
-			wake_up_interruptible(&ch->ch_flags_wait);
-	}
-
-	/*
-	 * Test for a PHYSICAL carrier transition to HIGH.
-	 */
-	if (((ch->ch_flags & CH_CD) == 0) && (phys_carrier == 1)) {
-
-		/*
-		 * When carrier rises, wake any threads waiting
-		 * for carrier in the open routine.
-		 */
-
-		if (waitqueue_active(&(ch->ch_flags_wait)))
-			wake_up_interruptible(&ch->ch_flags_wait);
-	}
-
-	/*
-	 *  Test for a PHYSICAL transition to low, so long as we aren't
-	 *  currently ignoring physical transitions (which is what "virtual
-	 *  carrier" indicates).
-	 *
-	 *  The transition of the virtual carrier to low really doesn't
-	 *  matter... it really only means "ignore carrier state", not
-	 *  "make pretend that carrier is there".
-	 */
-	if ((virt_carrier == 0) && ((ch->ch_flags & CH_CD) != 0) &&
-	    (phys_carrier == 0)) {
-
-		/*
-		 *   When carrier drops:
-		 *
-		 *   Drop carrier on all open units.
-		 *
-		 *   Flush queues, waking up any task waiting in the
-		 *   line discipline.
-		 *
-		 *   Send a hangup to the control terminal.
-		 *
-		 *   Enable all select calls.
-		 */
-		if (waitqueue_active(&(ch->ch_flags_wait)))
-			wake_up_interruptible(&ch->ch_flags_wait);
-
-		if (ch->ch_tun.un_open_count > 0)
-			tty_hangup(ch->ch_tun.un_tty);
-
-		if (ch->ch_pun.un_open_count > 0)
-			tty_hangup(ch->ch_pun.un_tty);
-	}
-
-	/*
-	 *  Make sure that our cached values reflect the current reality.
-	 */
-	if (virt_carrier == 1)
-		ch->ch_flags |= CH_FCAR;
-	else
-		ch->ch_flags &= ~CH_FCAR;
-
-	if (phys_carrier == 1)
-		ch->ch_flags |= CH_CD;
-	else
-		ch->ch_flags &= ~CH_CD;
-}
-
-/*
- *  Assign the custom baud rate to the channel structure
- */
-static void dgnc_set_custom_speed(struct channel_t *ch, uint newrate)
-{
-	int testdiv;
-	int testrate_high;
-	int testrate_low;
-	int deltahigh;
-	int deltalow;
-
-	if (newrate <= 0) {
-		ch->ch_custom_speed = 0;
-		return;
-	}
-
-	/*
-	 *  Since the divisor is stored in a 16-bit integer, we make sure
-	 *  we don't allow any rates smaller than a 16-bit integer would allow.
-	 *  And of course, rates above the dividend won't fly.
-	 */
-	if (newrate && newrate < ((ch->ch_bd->bd_dividend / 0xFFFF) + 1))
-		newrate = ((ch->ch_bd->bd_dividend / 0xFFFF) + 1);
-
-	if (newrate && newrate > ch->ch_bd->bd_dividend)
-		newrate = ch->ch_bd->bd_dividend;
-
-	if (newrate > 0) {
-		testdiv = ch->ch_bd->bd_dividend / newrate;
-
-		/*
-		 *  If we try to figure out what rate the board would use
-		 *  with the test divisor, it will be either equal or higher
-		 *  than the requested baud rate.  If we then determine the
-		 *  rate with a divisor one higher, we will get the next lower
-		 *  supported rate below the requested.
-		 */
-		testrate_high = ch->ch_bd->bd_dividend / testdiv;
-		testrate_low  = ch->ch_bd->bd_dividend / (testdiv + 1);
-
-		/*
-		 *  If the rate for the requested divisor is correct, just
-		 *  use it and be done.
-		 */
-		if (testrate_high != newrate) {
-			/*
-			 *  Otherwise, pick the rate that is closer (i.e. whichever rate
-			 *  has a smaller delta).
-			 */
-			deltahigh = testrate_high - newrate;
-			deltalow = newrate - testrate_low;
-
-			if (deltahigh < deltalow)
-				newrate = testrate_high;
-			else
-				newrate = testrate_low;
-		}
-	}
-
-	ch->ch_custom_speed = newrate;
-}
-
-
-void dgnc_check_queue_flow_control(struct channel_t *ch)
-{
-	int qleft = 0;
-
-	/* Store how much space we have left in the queue */
-	qleft = ch->ch_r_tail - ch->ch_r_head - 1;
-	if (qleft < 0)
-		qleft += RQUEUEMASK + 1;
-
-	/*
-	 * Check to see if we should enforce flow control on our queue because
-	 * the ld (or user) isn't reading data out of our queue fast enuf.
-	 *
-	 * NOTE: This is done based on what the current flow control of the
-	 * port is set for.
-	 *
-	 * 1) HWFLOW (RTS) - Turn off the UART's Receive interrupt.
-	 *	This will cause the UART's FIFO to back up, and force
-	 *	the RTS signal to be dropped.
-	 * 2) SWFLOW (IXOFF) - Keep trying to send a stop character to
-	 *	the other side, in hopes it will stop sending data to us.
-	 * 3) NONE - Nothing we can do.  We will simply drop any extra data
-	 *	that gets sent into us when the queue fills up.
-	 */
-	if (qleft < 256) {
-		/* HWFLOW */
-		if (ch->ch_digi.digi_flags & CTSPACE || ch->ch_c_cflag & CRTSCTS) {
-			if (!(ch->ch_flags & CH_RECEIVER_OFF)) {
-				ch->ch_bd->bd_ops->disable_receiver(ch);
-				ch->ch_flags |= (CH_RECEIVER_OFF);
-			}
-		}
-		/* SWFLOW */
-		else if (ch->ch_c_iflag & IXOFF) {
-			if (ch->ch_stops_sent <= MAX_STOPS_SENT) {
-				ch->ch_bd->bd_ops->send_stop_character(ch);
-				ch->ch_stops_sent++;
-			}
-		}
-	}
-
-	/*
-	 * Check to see if we should unenforce flow control because
-	 * ld (or user) finally read enuf data out of our queue.
-	 *
-	 * NOTE: This is done based on what the current flow control of the
-	 * port is set for.
-	 *
-	 * 1) HWFLOW (RTS) - Turn back on the UART's Receive interrupt.
-	 *	This will cause the UART's FIFO to raise RTS back up,
-	 *	which will allow the other side to start sending data again.
-	 * 2) SWFLOW (IXOFF) - Send a start character to
-	 *	the other side, so it will start sending data to us again.
-	 * 3) NONE - Do nothing. Since we didn't do anything to turn off the
-	 *	other side, we don't need to do anything now.
-	 */
-	if (qleft > (RQUEUESIZE / 2)) {
-		/* HWFLOW */
-		if (ch->ch_digi.digi_flags & RTSPACE || ch->ch_c_cflag & CRTSCTS) {
-			if (ch->ch_flags & CH_RECEIVER_OFF) {
-				ch->ch_bd->bd_ops->enable_receiver(ch);
-				ch->ch_flags &= ~(CH_RECEIVER_OFF);
-			}
-		}
-		/* SWFLOW */
-		else if (ch->ch_c_iflag & IXOFF && ch->ch_stops_sent) {
-			ch->ch_stops_sent = 0;
-			ch->ch_bd->bd_ops->send_start_character(ch);
-		}
-	}
-}
-
-
-void dgnc_wakeup_writes(struct channel_t *ch)
-{
-	int qlen = 0;
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/*
-	 * If channel now has space, wake up anyone waiting on the condition.
-	 */
-	qlen = ch->ch_w_head - ch->ch_w_tail;
-	if (qlen < 0)
-		qlen += WQUEUESIZE;
-
-	if (qlen >= (WQUEUESIZE - 256)) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
-
-	if (ch->ch_tun.un_flags & UN_ISOPEN) {
-		if ((ch->ch_tun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-			ch->ch_tun.un_tty->ldisc->ops->write_wakeup) {
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			(ch->ch_tun.un_tty->ldisc->ops->write_wakeup)(ch->ch_tun.un_tty);
-			spin_lock_irqsave(&ch->ch_lock, flags);
-		}
-
-		wake_up_interruptible(&ch->ch_tun.un_tty->write_wait);
-
-		/*
-		 * If unit is set to wait until empty, check to make sure
-		 * the queue AND FIFO are both empty.
-		 */
-		if (ch->ch_tun.un_flags & UN_EMPTY) {
-			if ((qlen == 0) && (ch->ch_bd->bd_ops->get_uart_bytes_left(ch) == 0)) {
-				ch->ch_tun.un_flags &= ~(UN_EMPTY);
-
-				/*
-				 * If RTS Toggle mode is on, whenever
-				 * the queue and UART is empty, keep RTS low.
-				 */
-				if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) {
-					ch->ch_mostat &= ~(UART_MCR_RTS);
-					ch->ch_bd->bd_ops->assert_modem_signals(ch);
-				}
-
-				/*
-				 * If DTR Toggle mode is on, whenever
-				 * the queue and UART is empty, keep DTR low.
-				 */
-				if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) {
-					ch->ch_mostat &= ~(UART_MCR_DTR);
-					ch->ch_bd->bd_ops->assert_modem_signals(ch);
-				}
-			}
-		}
-
-		wake_up_interruptible(&ch->ch_tun.un_flags_wait);
-	}
-
-	if (ch->ch_pun.un_flags & UN_ISOPEN) {
-		if ((ch->ch_pun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-			ch->ch_pun.un_tty->ldisc->ops->write_wakeup) {
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			(ch->ch_pun.un_tty->ldisc->ops->write_wakeup)(ch->ch_pun.un_tty);
-			spin_lock_irqsave(&ch->ch_lock, flags);
-		}
-
-		wake_up_interruptible(&ch->ch_pun.un_tty->write_wait);
-
-		/*
-		 * If unit is set to wait until empty, check to make sure
-		 * the queue AND FIFO are both empty.
-		 */
-		if (ch->ch_pun.un_flags & UN_EMPTY) {
-			if ((qlen == 0) && (ch->ch_bd->bd_ops->get_uart_bytes_left(ch) == 0))
-				ch->ch_pun.un_flags &= ~(UN_EMPTY);
-		}
-
-		wake_up_interruptible(&ch->ch_pun.un_flags_wait);
-	}
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-
-/************************************************************************
- *
- * TTY Entry points and helper functions
- *
- ************************************************************************/
-
-/*
- * dgnc_tty_open()
- *
- */
-static int dgnc_tty_open(struct tty_struct *tty, struct file *file)
-{
-	struct dgnc_board	*brd;
-	struct channel_t *ch;
-	struct un_t	*un;
-	uint		major = 0;
-	uint		minor = 0;
-	int		rc = 0;
-	unsigned long flags;
-
-	rc = 0;
-
-	major = MAJOR(tty_devnum(tty));
-	minor = MINOR(tty_devnum(tty));
-
-	if (major > 255)
-		return -ENXIO;
-
-	/* Get board pointer from our array of majors we have allocated */
-	brd = dgnc_BoardsByMajor[major];
-	if (!brd)
-		return -ENXIO;
-
-	/*
-	 * If board is not yet up to a state of READY, go to
-	 * sleep waiting for it to happen or they cancel the open.
-	 */
-	rc = wait_event_interruptible(brd->state_wait,
-		(brd->state & BOARD_READY));
-
-	if (rc)
-		return rc;
-
-	spin_lock_irqsave(&brd->bd_lock, flags);
-
-	/* If opened device is greater than our number of ports, bail. */
-	if (PORT_NUM(minor) >= brd->nasync) {
-		spin_unlock_irqrestore(&brd->bd_lock, flags);
-		return -ENXIO;
-	}
-
-	ch = brd->channels[PORT_NUM(minor)];
-	if (!ch) {
-		spin_unlock_irqrestore(&brd->bd_lock, flags);
-		return -ENXIO;
-	}
-
-	/* Drop board lock */
-	spin_unlock_irqrestore(&brd->bd_lock, flags);
-
-	/* Grab channel lock */
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* Figure out our type */
-	if (!IS_PRINT(minor)) {
-		un = &brd->channels[PORT_NUM(minor)]->ch_tun;
-		un->un_type = DGNC_SERIAL;
-	} else if (IS_PRINT(minor)) {
-		un = &brd->channels[PORT_NUM(minor)]->ch_pun;
-		un->un_type = DGNC_PRINT;
-	} else {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return -ENXIO;
-	}
-
-	/*
-	 * If the port is still in a previous open, and in a state
-	 * where we simply cannot safely keep going, wait until the
-	 * state clears.
-	 */
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	rc = wait_event_interruptible(ch->ch_flags_wait, ((ch->ch_flags & CH_OPENING) == 0));
-
-	/* If ret is non-zero, user ctrl-c'ed us */
-	if (rc)
-		return -EINTR;
-
-	/*
-	 * If either unit is in the middle of the fragile part of close,
-	 * we just cannot touch the channel safely.
-	 * Go to sleep, knowing that when the channel can be
-	 * touched safely, the close routine will signal the
-	 * ch_flags_wait to wake us back up.
-	 */
-	rc = wait_event_interruptible(ch->ch_flags_wait,
-		(((ch->ch_tun.un_flags | ch->ch_pun.un_flags) & UN_CLOSING) == 0));
-
-	/* If ret is non-zero, user ctrl-c'ed us */
-	if (rc)
-		return -EINTR;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-
-	/* Store our unit into driver_data, so we always have it available. */
-	tty->driver_data = un;
-
-
-	/*
-	 * Initialize tty's
-	 */
-	if (!(un->un_flags & UN_ISOPEN)) {
-		/* Store important variables. */
-		un->un_tty     = tty;
-
-		/* Maybe do something here to the TTY struct as well? */
-	}
-
-
-	/*
-	 * Allocate channel buffers for read/write/error.
-	 * Set flag, so we don't get trounced on.
-	 */
-	ch->ch_flags |= (CH_OPENING);
-
-	/* Drop locks, as malloc with GFP_KERNEL can sleep */
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	if (!ch->ch_rqueue)
-		ch->ch_rqueue = kzalloc(RQUEUESIZE, GFP_KERNEL);
-	if (!ch->ch_equeue)
-		ch->ch_equeue = kzalloc(EQUEUESIZE, GFP_KERNEL);
-	if (!ch->ch_wqueue)
-		ch->ch_wqueue = kzalloc(WQUEUESIZE, GFP_KERNEL);
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_flags &= ~(CH_OPENING);
-	wake_up_interruptible(&ch->ch_flags_wait);
-
-	/*
-	 * Initialize if neither terminal or printer is open.
-	 */
-	if (!((ch->ch_tun.un_flags | ch->ch_pun.un_flags) & UN_ISOPEN)) {
-
-		/*
-		 * Flush input queues.
-		 */
-		ch->ch_r_head = 0;
-		ch->ch_r_tail = 0;
-		ch->ch_e_head = 0;
-		ch->ch_e_tail = 0;
-		ch->ch_w_head = 0;
-		ch->ch_w_tail = 0;
-
-		brd->bd_ops->flush_uart_write(ch);
-		brd->bd_ops->flush_uart_read(ch);
-
-		ch->ch_flags = 0;
-		ch->ch_cached_lsr = 0;
-		ch->ch_stop_sending_break = 0;
-		ch->ch_stops_sent = 0;
-
-		ch->ch_c_cflag   = tty->termios.c_cflag;
-		ch->ch_c_iflag   = tty->termios.c_iflag;
-		ch->ch_c_oflag   = tty->termios.c_oflag;
-		ch->ch_c_lflag   = tty->termios.c_lflag;
-		ch->ch_startc = tty->termios.c_cc[VSTART];
-		ch->ch_stopc  = tty->termios.c_cc[VSTOP];
-
-		/*
-		 * Bring up RTS and DTR...
-		 * Also handle RTS or DTR toggle if set.
-		 */
-		if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE))
-			ch->ch_mostat |= (UART_MCR_RTS);
-		if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE))
-			ch->ch_mostat |= (UART_MCR_DTR);
-
-		/* Tell UART to init itself */
-		brd->bd_ops->uart_init(ch);
-	}
-
-	/*
-	 * Run param in case we changed anything
-	 */
-	brd->bd_ops->param(tty);
-
-	dgnc_carrier(ch);
-
-	/*
-	 * follow protocol for opening port
-	 */
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	rc = dgnc_block_til_ready(tty, file, ch);
-
-	/* No going back now, increment our unit and channel counters */
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	ch->ch_open_count++;
-	un->un_open_count++;
-	un->un_flags |= (UN_ISOPEN);
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	return rc;
-}
-
-
-/*
- * dgnc_block_til_ready()
- *
- * Wait for DCD, if needed.
- */
-static int dgnc_block_til_ready(struct tty_struct *tty, struct file *file, struct channel_t *ch)
-{
-	int retval = 0;
-	struct un_t *un = NULL;
-	unsigned long flags;
-	uint	old_flags = 0;
-	int	sleep_on_un_flags = 0;
-
-	if (!tty || tty->magic != TTY_MAGIC || !file || !ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -ENXIO;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return -ENXIO;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_wopen++;
-
-	/* Loop forever */
-	while (1) {
-
-		sleep_on_un_flags = 0;
-
-		/*
-		 * If board has failed somehow during our sleep, bail with error.
-		 */
-		if (ch->ch_bd->state == BOARD_FAILED) {
-			retval = -ENXIO;
-			break;
-		}
-
-		/* If tty was hung up, break out of loop and set error. */
-		if (tty_hung_up_p(file)) {
-			retval = -EAGAIN;
-			break;
-		}
-
-		/*
-		 * If either unit is in the middle of the fragile part of close,
-		 * we just cannot touch the channel safely.
-		 * Go back to sleep, knowing that when the channel can be
-		 * touched safely, the close routine will signal the
-		 * ch_wait_flags to wake us back up.
-		 */
-		if (!((ch->ch_tun.un_flags | ch->ch_pun.un_flags) & UN_CLOSING)) {
-
-			/*
-			 * Our conditions to leave cleanly and happily:
-			 * 1) NONBLOCKING on the tty is set.
-			 * 2) CLOCAL is set.
-			 * 3) DCD (fake or real) is active.
-			 */
-
-			if (file->f_flags & O_NONBLOCK)
-				break;
-
-			if (tty->flags & (1 << TTY_IO_ERROR)) {
-				retval = -EIO;
-				break;
-			}
-
-			if (ch->ch_flags & CH_CD)
-				break;
-
-			if (ch->ch_flags & CH_FCAR)
-				break;
-		} else {
-			sleep_on_un_flags = 1;
-		}
-
-		/*
-		 * If there is a signal pending, the user probably
-		 * interrupted (ctrl-c) us.
-		 * Leave loop with error set.
-		 */
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-
-		/*
-		 * Store the flags before we let go of channel lock
-		 */
-		if (sleep_on_un_flags)
-			old_flags = ch->ch_tun.un_flags | ch->ch_pun.un_flags;
-		else
-			old_flags = ch->ch_flags;
-
-		/*
-		 * Let go of channel lock before calling schedule.
-		 * Our poller will get any FEP events and wake us up when DCD
-		 * eventually goes active.
-		 */
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		/*
-		 * Wait for something in the flags to change from the current value.
-		 */
-		if (sleep_on_un_flags)
-			retval = wait_event_interruptible(un->un_flags_wait,
-				(old_flags != (ch->ch_tun.un_flags | ch->ch_pun.un_flags)));
-		else
-			retval = wait_event_interruptible(ch->ch_flags_wait,
-				(old_flags != ch->ch_flags));
-
-		/*
-		 * We got woken up for some reason.
-		 * Before looping around, grab our channel lock.
-		 */
-		spin_lock_irqsave(&ch->ch_lock, flags);
-	}
-
-	ch->ch_wopen--;
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	if (retval)
-		return retval;
-
-	return 0;
-}
-
-
-/*
- * dgnc_tty_hangup()
- *
- * Hangup the port.  Like a close, but don't wait for output to drain.
- */
-static void dgnc_tty_hangup(struct tty_struct *tty)
-{
-	struct un_t	*un;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	/* flush the transmit queues */
-	dgnc_tty_flush_buffer(tty);
-
-}
-
-
-/*
- * dgnc_tty_close()
- *
- */
-static void dgnc_tty_close(struct tty_struct *tty, struct file *file)
-{
-	struct ktermios *ts;
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-	int rc = 0;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	ts = &tty->termios;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/*
-	 * Determine if this is the last close or not - and if we agree about
-	 * which type of close it is with the Line Discipline
-	 */
-	if ((tty->count == 1) && (un->un_open_count != 1)) {
-		/*
-		 * Uh, oh.  tty->count is 1, which means that the tty
-		 * structure will be freed.  un_open_count should always
-		 * be one in these conditions.  If it's greater than
-		 * one, we've got real problems, since it means the
-		 * serial port won't be shutdown.
-		 */
-		dev_dbg(tty->dev,
-			"tty->count is 1, un open count is %d\n",
-			un->un_open_count);
-		un->un_open_count = 1;
-	}
-
-	if (un->un_open_count)
-		un->un_open_count--;
-	else
-		dev_dbg(tty->dev,
-			"bad serial port open count of %d\n",
-			un->un_open_count);
-
-	ch->ch_open_count--;
-
-	if (ch->ch_open_count && un->un_open_count) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return;
-	}
-
-	/* OK, its the last close on the unit */
-	un->un_flags |= UN_CLOSING;
-
-	tty->closing = 1;
-
-
-	/*
-	 * Only officially close channel if count is 0 and
-	 * DIGI_PRINTER bit is not set.
-	 */
-	if ((ch->ch_open_count == 0) && !(ch->ch_digi.digi_flags & DIGI_PRINTER)) {
-
-		ch->ch_flags &= ~(CH_STOPI | CH_FORCED_STOPI);
-
-		/*
-		 * turn off print device when closing print device.
-		 */
-		if ((un->un_type == DGNC_PRINT) && (ch->ch_flags & CH_PRON)) {
-			dgnc_wmove(ch, ch->ch_digi.digi_offstr,
-				(int) ch->ch_digi.digi_offlen);
-			ch->ch_flags &= ~CH_PRON;
-		}
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		/* wait for output to drain */
-		/* This will also return if we take an interrupt */
-
-		rc = bd->bd_ops->drain(tty, 0);
-
-		dgnc_tty_flush_buffer(tty);
-		tty_ldisc_flush(tty);
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-
-		tty->closing = 0;
-
-		/*
-		 * If we have HUPCL set, lower DTR and RTS
-		 */
-		if (ch->ch_c_cflag & HUPCL) {
-
-			/* Drop RTS/DTR */
-			ch->ch_mostat &= ~(UART_MCR_DTR | UART_MCR_RTS);
-			bd->bd_ops->assert_modem_signals(ch);
-
-			/*
-			 * Go to sleep to ensure RTS/DTR
-			 * have been dropped for modems to see it.
-			 */
-			if (ch->ch_close_delay) {
-				spin_unlock_irqrestore(&ch->ch_lock,
-						       flags);
-				dgnc_ms_sleep(ch->ch_close_delay);
-				spin_lock_irqsave(&ch->ch_lock, flags);
-			}
-		}
-
-		ch->ch_old_baud = 0;
-
-		/* Turn off UART interrupts for this port */
-		ch->ch_bd->bd_ops->uart_off(ch);
-	} else {
-		/*
-		 * turn off print device when closing print device.
-		 */
-		if ((un->un_type == DGNC_PRINT) && (ch->ch_flags & CH_PRON)) {
-			dgnc_wmove(ch, ch->ch_digi.digi_offstr,
-				(int) ch->ch_digi.digi_offlen);
-			ch->ch_flags &= ~CH_PRON;
-		}
-	}
-
-	un->un_tty = NULL;
-	un->un_flags &= ~(UN_ISOPEN | UN_CLOSING);
-
-	wake_up_interruptible(&ch->ch_flags_wait);
-	wake_up_interruptible(&un->un_flags_wait);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-/*
- * dgnc_tty_chars_in_buffer()
- *
- * Return number of characters that have not been transmitted yet.
- *
- * This routine is used by the line discipline to determine if there
- * is data waiting to be transmitted/drained/flushed or not.
- */
-static int dgnc_tty_chars_in_buffer(struct tty_struct *tty)
-{
-	struct channel_t *ch = NULL;
-	struct un_t *un = NULL;
-	ushort thead;
-	ushort ttail;
-	uint tmask;
-	uint chars = 0;
-	unsigned long flags;
-
-	if (tty == NULL)
-		return 0;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	tmask = WQUEUEMASK;
-	thead = ch->ch_w_head & tmask;
-	ttail = ch->ch_w_tail & tmask;
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	if (ttail == thead) {
-		chars = 0;
-	} else {
-		if (thead >= ttail)
-			chars = thead - ttail;
-		else
-			chars = thead - ttail + WQUEUESIZE;
-	}
-
-	return chars;
-}
-
-
-/*
- * dgnc_maxcps_room
- *
- * Reduces bytes_available to the max number of characters
- * that can be sent currently given the maxcps value, and
- * returns the new bytes_available.  This only affects printer
- * output.
- */
-static int dgnc_maxcps_room(struct tty_struct *tty, int bytes_available)
-{
-	struct channel_t *ch = NULL;
-	struct un_t *un = NULL;
-
-	if (!tty)
-		return bytes_available;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return bytes_available;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return bytes_available;
-
-	/*
-	 * If its not the Transparent print device, return
-	 * the full data amount.
-	 */
-	if (un->un_type != DGNC_PRINT)
-		return bytes_available;
-
-	if (ch->ch_digi.digi_maxcps > 0 && ch->ch_digi.digi_bufsize > 0) {
-		int cps_limit = 0;
-		unsigned long current_time = jiffies;
-		unsigned long buffer_time = current_time +
-			(HZ * ch->ch_digi.digi_bufsize) / ch->ch_digi.digi_maxcps;
-
-		if (ch->ch_cpstime < current_time) {
-			/* buffer is empty */
-			ch->ch_cpstime = current_time;	    /* reset ch_cpstime */
-			cps_limit = ch->ch_digi.digi_bufsize;
-		} else if (ch->ch_cpstime < buffer_time) {
-			/* still room in the buffer */
-			cps_limit = ((buffer_time - ch->ch_cpstime) * ch->ch_digi.digi_maxcps) / HZ;
-		} else {
-			/* no room in the buffer */
-			cps_limit = 0;
-		}
-
-		bytes_available = min(cps_limit, bytes_available);
-	}
-
-	return bytes_available;
-}
-
-
-/*
- * dgnc_tty_write_room()
- *
- * Return space available in Tx buffer
- */
-static int dgnc_tty_write_room(struct tty_struct *tty)
-{
-	struct channel_t *ch = NULL;
-	struct un_t *un = NULL;
-	ushort head;
-	ushort tail;
-	ushort tmask;
-	int ret = 0;
-	unsigned long flags;
-
-	if (tty == NULL || dgnc_TmpWriteBuf == NULL)
-		return 0;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	tmask = WQUEUEMASK;
-	head = (ch->ch_w_head) & tmask;
-	tail = (ch->ch_w_tail) & tmask;
-
-	ret = tail - head - 1;
-	if (ret < 0)
-		ret += WQUEUESIZE;
-
-	/* Limit printer to maxcps */
-	ret = dgnc_maxcps_room(tty, ret);
-
-	/*
-	 * If we are printer device, leave space for
-	 * possibly both the on and off strings.
-	 */
-	if (un->un_type == DGNC_PRINT) {
-		if (!(ch->ch_flags & CH_PRON))
-			ret -= ch->ch_digi.digi_onlen;
-		ret -= ch->ch_digi.digi_offlen;
-	} else {
-		if (ch->ch_flags & CH_PRON)
-			ret -= ch->ch_digi.digi_offlen;
-	}
-
-	if (ret < 0)
-		ret = 0;
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	return ret;
-}
-
-
-/*
- * dgnc_tty_put_char()
- *
- * Put a character into ch->ch_buf
- *
- *      - used by the line discipline for OPOST processing
- */
-static int dgnc_tty_put_char(struct tty_struct *tty, unsigned char c)
-{
-	/*
-	 * Simply call tty_write.
-	 */
-	dgnc_tty_write(tty, &c, 1);
-	return 1;
-}
-
-
-/*
- * dgnc_tty_write()
- *
- * Take data from the user or kernel and send it out to the FEP.
- * In here exists all the Transparent Print magic as well.
- */
-static int dgnc_tty_write(struct tty_struct *tty,
-		const unsigned char *buf, int count)
-{
-	struct channel_t *ch = NULL;
-	struct un_t *un = NULL;
-	int bufcount = 0, n = 0;
-	int orig_count = 0;
-	unsigned long flags;
-	ushort head;
-	ushort tail;
-	ushort tmask;
-	uint remain;
-
-	if (tty == NULL || dgnc_TmpWriteBuf == NULL)
-		return 0;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return 0;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return 0;
-
-	if (!count)
-		return 0;
-
-	/*
-	 * Store original amount of characters passed in.
-	 * This helps to figure out if we should ask the FEP
-	 * to send us an event when it has more space available.
-	 */
-	orig_count = count;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* Get our space available for the channel from the board */
-	tmask = WQUEUEMASK;
-	head = (ch->ch_w_head) & tmask;
-	tail = (ch->ch_w_tail) & tmask;
-
-	bufcount = tail - head - 1;
-	if (bufcount < 0)
-		bufcount += WQUEUESIZE;
-
-	/*
-	 * Limit printer output to maxcps overall, with bursts allowed
-	 * up to bufsize characters.
-	 */
-	bufcount = dgnc_maxcps_room(tty, bufcount);
-
-	/*
-	 * Take minimum of what the user wants to send, and the
-	 * space available in the FEP buffer.
-	 */
-	count = min(count, bufcount);
-
-	/*
-	 * Bail if no space left.
-	 */
-	if (count <= 0)
-		goto exit_retry;
-
-	/*
-	 * Output the printer ON string, if we are in terminal mode, but
-	 * need to be in printer mode.
-	 */
-	if ((un->un_type == DGNC_PRINT) && !(ch->ch_flags & CH_PRON)) {
-		dgnc_wmove(ch, ch->ch_digi.digi_onstr,
-		    (int) ch->ch_digi.digi_onlen);
-		head = (ch->ch_w_head) & tmask;
-		ch->ch_flags |= CH_PRON;
-	}
-
-	/*
-	 * On the other hand, output the printer OFF string, if we are
-	 * currently in printer mode, but need to output to the terminal.
-	 */
-	if ((un->un_type != DGNC_PRINT) && (ch->ch_flags & CH_PRON)) {
-		dgnc_wmove(ch, ch->ch_digi.digi_offstr,
-			(int) ch->ch_digi.digi_offlen);
-		head = (ch->ch_w_head) & tmask;
-		ch->ch_flags &= ~CH_PRON;
-	}
-
-	n = count;
-
-	/*
-	 * If the write wraps over the top of the circular buffer,
-	 * move the portion up to the wrap point, and reset the
-	 * pointers to the bottom.
-	 */
-	remain = WQUEUESIZE - head;
-
-	if (n >= remain) {
-		n -= remain;
-		memcpy(ch->ch_wqueue + head, buf, remain);
-		head = 0;
-		buf += remain;
-	}
-
-	if (n > 0) {
-		/*
-		 * Move rest of data.
-		 */
-		remain = n;
-		memcpy(ch->ch_wqueue + head, buf, remain);
-		head += remain;
-	}
-
-	if (count) {
-		head &= tmask;
-		ch->ch_w_head = head;
-	}
-
-	/* Update printer buffer empty time. */
-	if ((un->un_type == DGNC_PRINT) && (ch->ch_digi.digi_maxcps > 0)
-	    && (ch->ch_digi.digi_bufsize > 0)) {
-		ch->ch_cpstime += (HZ * count) / ch->ch_digi.digi_maxcps;
-	}
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	if (count) {
-		/*
-		 * Channel lock is grabbed and then released
-		 * inside this routine.
-		 */
-		ch->ch_bd->bd_ops->copy_data_from_queue_to_uart(ch);
-	}
-
-	return count;
-
-exit_retry:
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-	return 0;
-}
-
-
-/*
- * Return modem signals to ld.
- */
-
-static int dgnc_tty_tiocmget(struct tty_struct *tty)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	int result = -EIO;
-	unsigned char mstat = 0;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return result;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return result;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return result;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	mstat = (ch->ch_mostat | ch->ch_mistat);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	result = 0;
-
-	if (mstat & UART_MCR_DTR)
-		result |= TIOCM_DTR;
-	if (mstat & UART_MCR_RTS)
-		result |= TIOCM_RTS;
-	if (mstat & UART_MSR_CTS)
-		result |= TIOCM_CTS;
-	if (mstat & UART_MSR_DSR)
-		result |= TIOCM_DSR;
-	if (mstat & UART_MSR_RI)
-		result |= TIOCM_RI;
-	if (mstat & UART_MSR_DCD)
-		result |= TIOCM_CD;
-
-	return result;
-}
-
-
-/*
- * dgnc_tty_tiocmset()
- *
- * Set modem signals, called by ld.
- */
-
-static int dgnc_tty_tiocmset(struct tty_struct *tty,
-		unsigned int set, unsigned int clear)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	int ret = -EIO;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return ret;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return ret;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return ret;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return ret;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	if (set & TIOCM_RTS)
-		ch->ch_mostat |= UART_MCR_RTS;
-
-	if (set & TIOCM_DTR)
-		ch->ch_mostat |= UART_MCR_DTR;
-
-	if (clear & TIOCM_RTS)
-		ch->ch_mostat &= ~(UART_MCR_RTS);
-
-	if (clear & TIOCM_DTR)
-		ch->ch_mostat &= ~(UART_MCR_DTR);
-
-	ch->ch_bd->bd_ops->assert_modem_signals(ch);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	return 0;
-}
-
-
-/*
- * dgnc_tty_send_break()
- *
- * Send a Break, called by ld.
- */
-static int dgnc_tty_send_break(struct tty_struct *tty, int msec)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	int ret = -EIO;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return ret;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return ret;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return ret;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return ret;
-
-	switch (msec) {
-	case -1:
-		msec = 0xFFFF;
-		break;
-	case 0:
-		msec = 0;
-		break;
-	default:
-		break;
-	}
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_bd->bd_ops->send_break(ch, msec);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	return 0;
-
-}
-
-
-/*
- * dgnc_tty_wait_until_sent()
- *
- * wait until data has been transmitted, called by ld.
- */
-static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	int rc;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	rc = bd->bd_ops->drain(tty, 0);
-}
-
-
-/*
- * dgnc_send_xchar()
- *
- * send a high priority character, called by ld.
- */
-static void dgnc_tty_send_xchar(struct tty_struct *tty, char c)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	dev_dbg(tty->dev, "dgnc_tty_send_xchar start\n");
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	bd->bd_ops->send_immediate_char(ch, c);
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	dev_dbg(tty->dev, "dgnc_tty_send_xchar finish\n");
-}
-
-
-
-
-/*
- * Return modem signals to ld.
- */
-static inline int dgnc_get_mstat(struct channel_t *ch)
-{
-	unsigned char mstat;
-	int result = -EIO;
-	unsigned long flags;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -ENXIO;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	mstat = (ch->ch_mostat | ch->ch_mistat);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	result = 0;
-
-	if (mstat & UART_MCR_DTR)
-		result |= TIOCM_DTR;
-	if (mstat & UART_MCR_RTS)
-		result |= TIOCM_RTS;
-	if (mstat & UART_MSR_CTS)
-		result |= TIOCM_CTS;
-	if (mstat & UART_MSR_DSR)
-		result |= TIOCM_DSR;
-	if (mstat & UART_MSR_RI)
-		result |= TIOCM_RI;
-	if (mstat & UART_MSR_DCD)
-		result |= TIOCM_CD;
-
-	return result;
-}
-
-
-
-/*
- * Return modem signals to ld.
- */
-static int dgnc_get_modem_info(struct channel_t *ch, unsigned int  __user *value)
-{
-	int result;
-
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -ENXIO;
-
-	result = dgnc_get_mstat(ch);
-
-	if (result < 0)
-		return -ENXIO;
-
-	return put_user(result, value);
-}
-
-
-/*
- * dgnc_set_modem_info()
- *
- * Set modem signals, called by ld.
- */
-static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, unsigned int __user *value)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	int ret = -ENXIO;
-	unsigned int arg = 0;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return ret;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return ret;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return ret;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return ret;
-
-	ret = get_user(arg, value);
-	if (ret)
-		return ret;
-
-	switch (command) {
-	case TIOCMBIS:
-		if (arg & TIOCM_RTS)
-			ch->ch_mostat |= UART_MCR_RTS;
-
-		if (arg & TIOCM_DTR)
-			ch->ch_mostat |= UART_MCR_DTR;
-
-		break;
-
-	case TIOCMBIC:
-		if (arg & TIOCM_RTS)
-			ch->ch_mostat &= ~(UART_MCR_RTS);
-
-		if (arg & TIOCM_DTR)
-			ch->ch_mostat &= ~(UART_MCR_DTR);
-
-		break;
-
-	case TIOCMSET:
-
-		if (arg & TIOCM_RTS)
-			ch->ch_mostat |= UART_MCR_RTS;
-		else
-			ch->ch_mostat &= ~(UART_MCR_RTS);
-
-		if (arg & TIOCM_DTR)
-			ch->ch_mostat |= UART_MCR_DTR;
-		else
-			ch->ch_mostat &= ~(UART_MCR_DTR);
-
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_bd->bd_ops->assert_modem_signals(ch);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	return 0;
-}
-
-
-/*
- * dgnc_tty_digigeta()
- *
- * Ioctl to get the information for ditty.
- *
- *
- *
- */
-static int dgnc_tty_digigeta(struct tty_struct *tty, struct digi_t __user *retinfo)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	struct digi_t tmp;
-	unsigned long flags;
-
-	if (!retinfo)
-		return -EFAULT;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -EFAULT;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return -EFAULT;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -EFAULT;
-
-	memset(&tmp, 0, sizeof(tmp));
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-	memcpy(&tmp, &ch->ch_digi, sizeof(tmp));
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-		return -EFAULT;
-
-	return 0;
-}
-
-
-/*
- * dgnc_tty_digiseta()
- *
- * Ioctl to set the information for ditty.
- *
- *
- *
- */
-static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_info)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	struct digi_t new_digi;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -EFAULT;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return -EFAULT;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -EFAULT;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return -EFAULT;
-
-	if (copy_from_user(&new_digi, new_info, sizeof(new_digi)))
-		return -EFAULT;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/*
-	 * Handle transistions to and from RTS Toggle.
-	 */
-	if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) && (new_digi.digi_flags & DIGI_RTS_TOGGLE))
-		ch->ch_mostat &= ~(UART_MCR_RTS);
-	if ((ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) && !(new_digi.digi_flags & DIGI_RTS_TOGGLE))
-		ch->ch_mostat |= (UART_MCR_RTS);
-
-	/*
-	 * Handle transistions to and from DTR Toggle.
-	 */
-	if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) && (new_digi.digi_flags & DIGI_DTR_TOGGLE))
-		ch->ch_mostat &= ~(UART_MCR_DTR);
-	if ((ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) && !(new_digi.digi_flags & DIGI_DTR_TOGGLE))
-		ch->ch_mostat |= (UART_MCR_DTR);
-
-	memcpy(&ch->ch_digi, &new_digi, sizeof(new_digi));
-
-	if (ch->ch_digi.digi_maxcps < 1)
-		ch->ch_digi.digi_maxcps = 1;
-
-	if (ch->ch_digi.digi_maxcps > 10000)
-		ch->ch_digi.digi_maxcps = 10000;
-
-	if (ch->ch_digi.digi_bufsize < 10)
-		ch->ch_digi.digi_bufsize = 10;
-
-	if (ch->ch_digi.digi_maxchar < 1)
-		ch->ch_digi.digi_maxchar = 1;
-
-	if (ch->ch_digi.digi_maxchar > ch->ch_digi.digi_bufsize)
-		ch->ch_digi.digi_maxchar = ch->ch_digi.digi_bufsize;
-
-	if (ch->ch_digi.digi_onlen > DIGI_PLEN)
-		ch->ch_digi.digi_onlen = DIGI_PLEN;
-
-	if (ch->ch_digi.digi_offlen > DIGI_PLEN)
-		ch->ch_digi.digi_offlen = DIGI_PLEN;
-
-	ch->ch_bd->bd_ops->param(tty);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-	return 0;
-}
-
-
-/*
- * dgnc_set_termios()
- */
-static void dgnc_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_c_cflag   = tty->termios.c_cflag;
-	ch->ch_c_iflag   = tty->termios.c_iflag;
-	ch->ch_c_oflag   = tty->termios.c_oflag;
-	ch->ch_c_lflag   = tty->termios.c_lflag;
-	ch->ch_startc = tty->termios.c_cc[VSTART];
-	ch->ch_stopc  = tty->termios.c_cc[VSTOP];
-
-	ch->ch_bd->bd_ops->param(tty);
-	dgnc_carrier(ch);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-static void dgnc_tty_throttle(struct tty_struct *tty)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_flags |= (CH_FORCED_STOPI);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-static void dgnc_tty_unthrottle(struct tty_struct *tty)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_flags &= ~(CH_FORCED_STOPI);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-static void dgnc_tty_start(struct tty_struct *tty)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_flags &= ~(CH_FORCED_STOP);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-static void dgnc_tty_stop(struct tty_struct *tty)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_flags |= (CH_FORCED_STOP);
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-/*
- * dgnc_tty_flush_chars()
- *
- * Flush the cook buffer
- *
- * Note to self, and any other poor souls who venture here:
- *
- * flush in this case DOES NOT mean dispose of the data.
- * instead, it means "stop buffering and send it if you
- * haven't already."  Just guess how I figured that out...   SRW 2-Jun-98
- *
- * It is also always called in interrupt context - JAR 8-Sept-99
- */
-static void dgnc_tty_flush_chars(struct tty_struct *tty)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	/* Do something maybe here */
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-
-/*
- * dgnc_tty_flush_buffer()
- *
- * Flush Tx buffer (make in == out)
- */
-static void dgnc_tty_flush_buffer(struct tty_struct *tty)
-{
-	struct channel_t *ch;
-	struct un_t *un;
-	unsigned long flags;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	ch->ch_flags &= ~CH_STOP;
-
-	/* Flush our write queue */
-	ch->ch_w_head = ch->ch_w_tail;
-
-	/* Flush UARTs transmit FIFO */
-	ch->ch_bd->bd_ops->flush_uart_write(ch);
-
-	if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) {
-		ch->ch_tun.un_flags &= ~(UN_LOW|UN_EMPTY);
-		wake_up_interruptible(&ch->ch_tun.un_flags_wait);
-	}
-	if (ch->ch_pun.un_flags & (UN_LOW|UN_EMPTY)) {
-		ch->ch_pun.un_flags &= ~(UN_LOW|UN_EMPTY);
-		wake_up_interruptible(&ch->ch_pun.un_flags_wait);
-	}
-
-	spin_unlock_irqrestore(&ch->ch_lock, flags);
-}
-
-
-
-/*****************************************************************************
- *
- * The IOCTL function and all of its helpers
- *
- *****************************************************************************/
-
-/*
- * dgnc_tty_ioctl()
- *
- * The usual assortment of ioctl's
- */
-static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
-		unsigned long arg)
-{
-	struct dgnc_board *bd;
-	struct channel_t *ch;
-	struct un_t *un;
-	int rc;
-	unsigned long flags;
-	void __user *uarg = (void __user *) arg;
-
-	if (!tty || tty->magic != TTY_MAGIC)
-		return -ENODEV;
-
-	un = tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return -ENODEV;
-
-	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return -ENODEV;
-
-	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return -ENODEV;
-
-	spin_lock_irqsave(&ch->ch_lock, flags);
-
-	if (un->un_open_count <= 0) {
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return -EIO;
-	}
-
-	switch (cmd) {
-
-	/* Here are all the standard ioctl's that we MUST implement */
-
-	case TCSBRK:
-		/*
-		 * TCSBRK is SVID version: non-zero arg --> no break
-		 * this behaviour is exploited by tcdrain().
-		 *
-		 * According to POSIX.1 spec (7.2.2.1.2) breaks should be
-		 * between 0.25 and 0.5 seconds so we'll ask for something
-		 * in the middle: 0.375 seconds.
-		 */
-		rc = tty_check_change(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		if (rc)
-			return rc;
-
-		rc = ch->ch_bd->bd_ops->drain(tty, 0);
-
-		if (rc)
-			return -EINTR;
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-
-		if (((cmd == TCSBRK) && (!arg)) || (cmd == TCSBRKP))
-			ch->ch_bd->bd_ops->send_break(ch, 250);
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		return 0;
-
-
-	case TCSBRKP:
-		/* support for POSIX tcsendbreak()
-		 * According to POSIX.1 spec (7.2.2.1.2) breaks should be
-		 * between 0.25 and 0.5 seconds so we'll ask for something
-		 * in the middle: 0.375 seconds.
-		 */
-		rc = tty_check_change(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		if (rc)
-			return rc;
-
-		rc = ch->ch_bd->bd_ops->drain(tty, 0);
-		if (rc)
-			return -EINTR;
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-
-		ch->ch_bd->bd_ops->send_break(ch, 250);
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		return 0;
-
-	case TIOCSBRK:
-		rc = tty_check_change(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		if (rc)
-			return rc;
-
-		rc = ch->ch_bd->bd_ops->drain(tty, 0);
-		if (rc)
-			return -EINTR;
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-
-		ch->ch_bd->bd_ops->send_break(ch, 250);
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		return 0;
-
-	case TIOCCBRK:
-		/* Do Nothing */
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return 0;
-
-	case TIOCGSOFTCAR:
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		rc = put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *) arg);
-		return rc;
-
-	case TIOCSSOFTCAR:
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		rc = get_user(arg, (unsigned long __user *) arg);
-		if (rc)
-			return rc;
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		tty->termios.c_cflag = ((tty->termios.c_cflag & ~CLOCAL) | (arg ? CLOCAL : 0));
-		ch->ch_bd->bd_ops->param(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		return 0;
-
-	case TIOCMGET:
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return dgnc_get_modem_info(ch, uarg);
-
-	case TIOCMBIS:
-	case TIOCMBIC:
-	case TIOCMSET:
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return dgnc_set_modem_info(tty, cmd, uarg);
-
-		/*
-		 * Here are any additional ioctl's that we want to implement
-		 */
-
-	case TCFLSH:
-		/*
-		 * The linux tty driver doesn't have a flush
-		 * input routine for the driver, assuming all backed
-		 * up data is in the line disc. buffers.  However,
-		 * we all know that's not the case.  Here, we
-		 * act on the ioctl, but then lie and say we didn't
-		 * so the line discipline will process the flush
-		 * also.
-		 */
-		rc = tty_check_change(tty);
-		if (rc) {
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			return rc;
-		}
-
-		if ((arg == TCIFLUSH) || (arg == TCIOFLUSH)) {
-			ch->ch_r_head = ch->ch_r_tail;
-			ch->ch_bd->bd_ops->flush_uart_read(ch);
-			/* Force queue flow control to be released, if needed */
-			dgnc_check_queue_flow_control(ch);
-		}
-
-		if ((arg == TCOFLUSH) || (arg == TCIOFLUSH)) {
-			if (!(un->un_type == DGNC_PRINT)) {
-				ch->ch_w_head = ch->ch_w_tail;
-				ch->ch_bd->bd_ops->flush_uart_write(ch);
-
-				if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) {
-					ch->ch_tun.un_flags &= ~(UN_LOW|UN_EMPTY);
-					wake_up_interruptible(&ch->ch_tun.un_flags_wait);
-				}
-
-				if (ch->ch_pun.un_flags & (UN_LOW|UN_EMPTY)) {
-					ch->ch_pun.un_flags &= ~(UN_LOW|UN_EMPTY);
-					wake_up_interruptible(&ch->ch_pun.un_flags_wait);
-				}
-
-			}
-		}
-
-		/* pretend we didn't recognize this IOCTL */
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return -ENOIOCTLCMD;
-	case TCSETSF:
-	case TCSETSW:
-		/*
-		 * The linux tty driver doesn't have a flush
-		 * input routine for the driver, assuming all backed
-		 * up data is in the line disc. buffers.  However,
-		 * we all know that's not the case.  Here, we
-		 * act on the ioctl, but then lie and say we didn't
-		 * so the line discipline will process the flush
-		 * also.
-		 */
-		if (cmd == TCSETSF) {
-			/* flush rx */
-			ch->ch_flags &= ~CH_STOP;
-			ch->ch_r_head = ch->ch_r_tail;
-			ch->ch_bd->bd_ops->flush_uart_read(ch);
-			/* Force queue flow control to be released, if needed */
-			dgnc_check_queue_flow_control(ch);
-		}
-
-		/* now wait for all the output to drain */
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		rc = ch->ch_bd->bd_ops->drain(tty, 0);
-		if (rc)
-			return -EINTR;
-
-		/* pretend we didn't recognize this */
-		return -ENOIOCTLCMD;
-
-	case TCSETAW:
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		rc = ch->ch_bd->bd_ops->drain(tty, 0);
-		if (rc)
-			return -EINTR;
-
-		/* pretend we didn't recognize this */
-		return -ENOIOCTLCMD;
-
-	case TCXONC:
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		/* Make the ld do it */
-		return -ENOIOCTLCMD;
-
-	case DIGI_GETA:
-		/* get information for ditty */
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return dgnc_tty_digigeta(tty, uarg);
-
-	case DIGI_SETAW:
-	case DIGI_SETAF:
-
-		/* set information for ditty */
-		if (cmd == (DIGI_SETAW)) {
-
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			rc = ch->ch_bd->bd_ops->drain(tty, 0);
-
-			if (rc)
-				return -EINTR;
-
-			spin_lock_irqsave(&ch->ch_lock, flags);
-		} else {
-			tty_ldisc_flush(tty);
-		}
-		/* fall thru */
-
-	case DIGI_SETA:
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return dgnc_tty_digiseta(tty, uarg);
-
-	case DIGI_LOOPBACK:
-		{
-			uint loopback = 0;
-			/* Let go of locks when accessing user space, could sleep */
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			rc = get_user(loopback, (unsigned int __user *) arg);
-			if (rc)
-				return rc;
-			spin_lock_irqsave(&ch->ch_lock, flags);
-
-			/* Enable/disable internal loopback for this port */
-			if (loopback)
-				ch->ch_flags |= CH_LOOPBACK;
-			else
-				ch->ch_flags &= ~(CH_LOOPBACK);
-
-			ch->ch_bd->bd_ops->param(tty);
-			spin_unlock_irqrestore(&ch->ch_lock, flags);
-			return 0;
-		}
-
-	case DIGI_GETCUSTOMBAUD:
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		rc = put_user(ch->ch_custom_speed, (unsigned int __user *) arg);
-		return rc;
-
-	case DIGI_SETCUSTOMBAUD:
-	{
-		int new_rate;
-		/* Let go of locks when accessing user space, could sleep */
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		rc = get_user(new_rate, (int __user *) arg);
-		if (rc)
-			return rc;
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		dgnc_set_custom_speed(ch, new_rate);
-		ch->ch_bd->bd_ops->param(tty);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return 0;
-	}
-
-	/*
-	 * This ioctl allows insertion of a character into the front
-	 * of any pending data to be transmitted.
-	 *
-	 * This ioctl is to satify the "Send Character Immediate"
-	 * call that the RealPort protocol spec requires.
-	 */
-	case DIGI_REALPORT_SENDIMMEDIATE:
-	{
-		unsigned char c;
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		rc = get_user(c, (unsigned char __user *) arg);
-		if (rc)
-			return rc;
-		spin_lock_irqsave(&ch->ch_lock, flags);
-		ch->ch_bd->bd_ops->send_immediate_char(ch, c);
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		return 0;
-	}
-
-	/*
-	 * This ioctl returns all the current counts for the port.
-	 *
-	 * This ioctl is to satify the "Line Error Counters"
-	 * call that the RealPort protocol spec requires.
-	 */
-	case DIGI_REALPORT_GETCOUNTERS:
-	{
-		struct digi_getcounter buf;
-
-		buf.norun = ch->ch_err_overrun;
-		buf.noflow = 0;		/* The driver doesn't keep this stat */
-		buf.nframe = ch->ch_err_frame;
-		buf.nparity = ch->ch_err_parity;
-		buf.nbreak = ch->ch_err_break;
-		buf.rbytes = ch->ch_rxcount;
-		buf.tbytes = ch->ch_txcount;
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		if (copy_to_user(uarg, &buf, sizeof(buf)))
-			return -EFAULT;
-
-		return 0;
-	}
-
-	/*
-	 * This ioctl returns all current events.
-	 *
-	 * This ioctl is to satify the "Event Reporting"
-	 * call that the RealPort protocol spec requires.
-	 */
-	case DIGI_REALPORT_GETEVENTS:
-	{
-		unsigned int events = 0;
-
-		/* NOTE: MORE EVENTS NEEDS TO BE ADDED HERE */
-		if (ch->ch_flags & CH_BREAK_SENDING)
-			events |= EV_TXB;
-		if ((ch->ch_flags & CH_STOP) || (ch->ch_flags & CH_FORCED_STOP))
-			events |= (EV_OPU | EV_OPS);
-
-		if ((ch->ch_flags & CH_STOPI) || (ch->ch_flags & CH_FORCED_STOPI))
-			events |= (EV_IPU | EV_IPS);
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-		rc = put_user(events, (unsigned int __user *) arg);
-		return rc;
-	}
-
-	/*
-	 * This ioctl returns TOUT and TIN counters based
-	 * upon the values passed in by the RealPort Server.
-	 * It also passes back whether the UART Transmitter is
-	 * empty as well.
-	 */
-	case DIGI_REALPORT_GETBUFFERS:
-	{
-		struct digi_getbuffer buf;
-		int tdist;
-		int count;
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		/*
-		 * Get data from user first.
-		 */
-		if (copy_from_user(&buf, uarg, sizeof(buf)))
-			return -EFAULT;
-
-		spin_lock_irqsave(&ch->ch_lock, flags);
-
-		/*
-		 * Figure out how much data is in our RX and TX queues.
-		 */
-		buf.rxbuf = (ch->ch_r_head - ch->ch_r_tail) & RQUEUEMASK;
-		buf.txbuf = (ch->ch_w_head - ch->ch_w_tail) & WQUEUEMASK;
-
-		/*
-		 * Is the UART empty? Add that value to whats in our TX queue.
-		 */
-		count = buf.txbuf + ch->ch_bd->bd_ops->get_uart_bytes_left(ch);
-
-		/*
-		 * Figure out how much data the RealPort Server believes should
-		 * be in our TX queue.
-		 */
-		tdist = (buf.tIn - buf.tOut) & 0xffff;
-
-		/*
-		 * If we have more data than the RealPort Server believes we
-		 * should have, reduce our count to its amount.
-		 *
-		 * This count difference CAN happen because the Linux LD can
-		 * insert more characters into our queue for OPOST processing
-		 * that the RealPort Server doesn't know about.
-		 */
-		if (buf.txbuf > tdist)
-			buf.txbuf = tdist;
-
-		/*
-		 * Report whether our queue and UART TX are completely empty.
-		 */
-		if (count)
-			buf.txdone = 0;
-		else
-			buf.txdone = 1;
-
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		if (copy_to_user(uarg, &buf, sizeof(buf)))
-			return -EFAULT;
-
-		return 0;
-	}
-	default:
-		spin_unlock_irqrestore(&ch->ch_lock, flags);
-
-		return -ENOIOCTLCMD;
-	}
-}
diff --git a/drivers/staging/dgnc/dgnc_tty.h b/drivers/staging/dgnc/dgnc_tty.h
deleted file mode 100644
index 21d3369b875c..000000000000
--- a/drivers/staging/dgnc/dgnc_tty.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef __DGNC_TTY_H
-#define __DGNC_TTY_H
-
-#include "dgnc_driver.h"
-
-int	dgnc_tty_register(struct dgnc_board *brd);
-
-int	dgnc_tty_preinit(void);
-int     dgnc_tty_init(struct dgnc_board *);
-
-void	dgnc_tty_post_uninit(void);
-void	dgnc_tty_uninit(struct dgnc_board *);
-
-void	dgnc_input(struct channel_t *ch);
-void	dgnc_carrier(struct channel_t *ch);
-void	dgnc_wakeup_writes(struct channel_t *ch);
-void	dgnc_check_queue_flow_control(struct channel_t *ch);
-
-#endif
diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c
deleted file mode 100644
index f76de82908d3..000000000000
--- a/drivers/staging/dgnc/dgnc_utils.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#include <linux/tty.h>
-#include <linux/sched.h>
-#include "dgnc_utils.h"
-#include "digi.h"
-
-/*
- * dgnc_ms_sleep()
- *
- * Put the driver to sleep for x ms's
- *
- * Returns 0 if timed out, !0 (showing signal) if interrupted by a signal.
- */
-int dgnc_ms_sleep(ulong ms)
-{
-	__set_current_state(TASK_INTERRUPTIBLE);
-	schedule_timeout((ms * HZ) / 1000);
-	return signal_pending(current);
-}
diff --git a/drivers/staging/dgnc/dgnc_utils.h b/drivers/staging/dgnc/dgnc_utils.h
deleted file mode 100644
index 1164c3a09c6b..000000000000
--- a/drivers/staging/dgnc/dgnc_utils.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __DGNC_UTILS_H
-#define __DGNC_UTILS_H
-
-int dgnc_ms_sleep(ulong ms);
-
-#endif
diff --git a/drivers/staging/dgnc/digi.h b/drivers/staging/dgnc/digi.h
deleted file mode 100644
index cf9dcae7cc3f..000000000000
--- a/drivers/staging/dgnc/digi.h
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * Copyright 2003 Digi International (www.digi.com)
- *	Scott H Kilau <Scott_Kilau at digi dot com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- */
-
-#ifndef __DIGI_H
-#define __DIGI_H
-
-#ifndef TIOCM_LE
-#define		TIOCM_LE	0x01		/* line enable		*/
-#define		TIOCM_DTR	0x02		/* data terminal ready	*/
-#define		TIOCM_RTS	0x04		/* request to send	*/
-#define		TIOCM_ST	0x08		/* secondary transmit	*/
-#define		TIOCM_SR	0x10		/* secondary receive	*/
-#define		TIOCM_CTS	0x20		/* clear to send	*/
-#define		TIOCM_CAR	0x40		/* carrier detect	*/
-#define		TIOCM_RNG	0x80		/* ring	indicator	*/
-#define		TIOCM_DSR	0x100		/* data set ready	*/
-#define		TIOCM_RI	TIOCM_RNG	/* ring (alternate)	*/
-#define		TIOCM_CD	TIOCM_CAR	/* carrier detect (alt)	*/
-#endif
-
-#if !defined(TIOCMSET)
-#define	TIOCMSET	(('d'<<8) | 252)	/* set modem ctrl state	*/
-#define	TIOCMGET	(('d'<<8) | 253)	/* set modem ctrl state	*/
-#endif
-
-#if !defined(TIOCMBIC)
-#define	TIOCMBIC	(('d'<<8) | 254)	/* set modem ctrl state */
-#define	TIOCMBIS	(('d'<<8) | 255)	/* set modem ctrl state */
-#endif
-
-#define DIGI_GETA	(('e'<<8) | 94)		/* Read params		*/
-#define DIGI_SETA	(('e'<<8) | 95)		/* Set params		*/
-#define DIGI_SETAW	(('e'<<8) | 96)		/* Drain & set params	*/
-#define DIGI_SETAF	(('e'<<8) | 97)		/* Drain, flush & set params */
-#define DIGI_GET_NI_INFO (('d'<<8) | 250) /* Non-intelligent state info */
-#define DIGI_LOOPBACK (('d'<<8) | 252) /*
-					* Enable/disable UART
-					* internal loopback
-					*/
-#define DIGI_FAST	0x0002		/* Fast baud rates		*/
-#define RTSPACE		0x0004		/* RTS input flow control	*/
-#define CTSPACE		0x0008		/* CTS output flow control	*/
-#define DIGI_COOK	0x0080		/* Cooked processing done in FEP */
-#define DIGI_FORCEDCD	0x0100		/* Force carrier		*/
-#define	DIGI_ALTPIN	0x0200		/* Alternate RJ-45 pin config	*/
-#define	DIGI_PRINTER	0x0800		/* Hold port open for flow cntrl*/
-#define DIGI_DTR_TOGGLE	0x2000		/* Support DTR Toggle           */
-#define DIGI_RTS_TOGGLE	0x8000		/* Support RTS Toggle		*/
-#define DIGI_PLEN	28		/* String length		*/
-#define	DIGI_TSIZ	10		/* Terminal string len		*/
-
-/************************************************************************
- * Structure used with ioctl commands for DIGI parameters.
- ************************************************************************/
-struct digi_t {
-	unsigned short	digi_flags;		/* Flags (see above)	*/
-	unsigned short	digi_maxcps;		/* Max printer CPS	*/
-	unsigned short	digi_maxchar;		/* Max chars in print queue */
-	unsigned short	digi_bufsize;		/* Buffer size		*/
-	unsigned char	digi_onlen;		/* Length of ON string	*/
-	unsigned char	digi_offlen;		/* Length of OFF string	*/
-	char		digi_onstr[DIGI_PLEN];	/* Printer on string	*/
-	char		digi_offstr[DIGI_PLEN];	/* Printer off string	*/
-	char		digi_term[DIGI_TSIZ];	/* terminal string	*/
-};
-
-/************************************************************************
- * Structure to get driver status information
- ************************************************************************/
-struct digi_dinfo {
-	unsigned int	dinfo_nboards;		/* # boards configured	*/
-	char		dinfo_reserved[12];	/* for future expansion */
-	char		dinfo_version[16];	/* driver version       */
-};
-
-#define	DIGI_GETDD	(('d'<<8) | 248)	/* get driver info      */
-
-/************************************************************************
- * Structure used with ioctl commands for per-board information
- *
- * physsize and memsize differ when board has "windowed" memory
- ************************************************************************/
-struct digi_info {
-	unsigned int	info_bdnum;		/* Board number (0 based)  */
-	unsigned int	info_ioport;		/* io port address         */
-	unsigned int	info_physaddr;		/* memory address          */
-	unsigned int	info_physsize;		/* Size of host mem window */
-	unsigned int	info_memsize;		/* Amount of dual-port mem */
-						/* on board                */
-	unsigned short	info_bdtype;		/* Board type              */
-	unsigned short	info_nports;		/* number of ports         */
-	char		info_bdstate;		/* board state             */
-	char		info_reserved[7];	/* for future expansion    */
-};
-
-#define	DIGI_GETBD	(('d'<<8) | 249)	/* get board info          */
-
-struct digi_getbuffer /* Struct for holding buffer use counts */
-{
-	unsigned long tIn;
-	unsigned long tOut;
-	unsigned long rxbuf;
-	unsigned long txbuf;
-	unsigned long txdone;
-};
-
-struct digi_getcounter {
-	unsigned long norun;		/* number of UART overrun errors */
-	unsigned long noflow;		/* number of buffer overflow errors */
-	unsigned long nframe;		/* number of framing errors */
-	unsigned long nparity;		/* number of parity errors */
-	unsigned long nbreak;		/* number of breaks received */
-	unsigned long rbytes;		/* number of received bytes */
-	unsigned long tbytes;		/* number of bytes transmitted fully */
-};
-
-/* Board State Definitions */
-#define	BD_RUNNING	0x0
-#define	BD_NOFEP	0x5
-
-#define DIGI_SETCUSTOMBAUD _IOW('e', 106, int)	/* Set integer baud rate */
-#define DIGI_GETCUSTOMBAUD _IOR('e', 107, int)	/* Get integer baud rate */
-
-#define DIGI_REALPORT_GETBUFFERS (('e'<<8) | 108)
-#define DIGI_REALPORT_SENDIMMEDIATE (('e'<<8) | 109)
-#define DIGI_REALPORT_GETCOUNTERS (('e'<<8) | 110)
-#define DIGI_REALPORT_GETEVENTS (('e'<<8) | 111)
-
-#define EV_OPU 0x0001 /* !<Output paused by client */
-#define EV_OPS 0x0002 /* !<Output paused by reqular sw flowctrl */
-#define EV_IPU 0x0010 /* !<Input paused unconditionally by user */
-#define EV_IPS 0x0020 /* !<Input paused by high/low water marks */
-#define EV_TXB 0x0040 /* !<Transmit break pending */
-
-/*
- * This structure holds data needed for the intelligent <--> nonintelligent
- * DPA translation
- */
-struct ni_info {
-	int board;
-	int channel;
-	int dtr;
-	int rts;
-	int cts;
-	int dsr;
-	int ri;
-	int dcd;
-	int curtx;
-	int currx;
-	unsigned short iflag;
-	unsigned short oflag;
-	unsigned short cflag;
-	unsigned short lflag;
-	unsigned int mstat;
-	unsigned char hflow;
-	unsigned char xmit_stopped;
-	unsigned char recv_stopped;
-	unsigned int baud;
-};
-
-#define T_CLASSIC 0002
-#define T_PCIBUS 0400
-#define T_NEO_EXPRESS 0001
-#define T_NEO 0000
-
-#define TTY_FLIPBUF_SIZE 512
-#endif /* DIGI_H */
diff --git a/drivers/staging/emxx_udc/Kconfig b/drivers/staging/emxx_udc/Kconfig
deleted file mode 100644
index cc3402020487..000000000000
--- a/drivers/staging/emxx_udc/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-config USB_EMXX
-	bool "EMXX USB Function Device Controller"
- 	depends on USB_GADGET && (ARCH_SHMOBILE || (ARM && COMPILE_TEST))
-	help
-	   The Emma Mobile series of SoCs from Renesas Electronics and
-	   former NEC Electronics include USB Function hardware.
-
-	   Say "y" to link the driver statically, or "m" to build a
-	   dynamically linked module called "emxx_udc" and force all
-	   gadget drivers to also be dynamically linked.
diff --git a/drivers/staging/emxx_udc/Makefile b/drivers/staging/emxx_udc/Makefile
deleted file mode 100644
index 6352724c0b57..000000000000
--- a/drivers/staging/emxx_udc/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_USB_EMXX)	:= emxx_udc.o
diff --git a/drivers/staging/emxx_udc/TODO b/drivers/staging/emxx_udc/TODO
deleted file mode 100644
index 1319379beb7e..000000000000
--- a/drivers/staging/emxx_udc/TODO
+++ /dev/null
@@ -1,4 +0,0 @@
-* add clock framework support (platform device with CCF needs special care)
-* break out board-specific VBUS GPIO to work with multiplatform
-* DT bindings
-* move driver into drivers/usb/gadget/
diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
deleted file mode 100644
index b6b76ff09657..000000000000
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ /dev/null
@@ -1,3428 +0,0 @@
-/*
- *  drivers/usb/gadget/emxx_udc.c
- *     EMXX FCD (Function Controller Driver) for USB.
- *
- *  Copyright (C) 2010 Renesas Electronics Corporation
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software Foundation,
- *  Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/proc_fs.h>
-#include <linux/clk.h>
-#include <linux/ctype.h>
-#include <linux/string.h>
-#include <linux/dma-mapping.h>
-#include <linux/workqueue.h>
-#include <linux/device.h>
-
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-#include <linux/irq.h>
-#include <linux/gpio.h>
-
-#include "emxx_udc.h"
-
-#define	DRIVER_DESC	"EMXX UDC driver"
-#define	DMA_ADDR_INVALID	(~(dma_addr_t)0)
-
-static const char	driver_name[] = "emxx_udc";
-static const char	driver_desc[] = DRIVER_DESC;
-
-/*===========================================================================*/
-/* Prototype */
-static void _nbu2ss_ep_dma_abort(struct nbu2ss_udc *, struct nbu2ss_ep *);
-static void _nbu2ss_ep0_enable(struct nbu2ss_udc *);
-/*static void _nbu2ss_ep0_disable(struct nbu2ss_udc *);*/
-static void _nbu2ss_ep_done(struct nbu2ss_ep *, struct nbu2ss_req *, int);
-static void _nbu2ss_set_test_mode(struct nbu2ss_udc *, u32 mode);
-static void _nbu2ss_endpoint_toggle_reset(struct nbu2ss_udc *udc, u8 ep_adrs);
-
-static int _nbu2ss_pullup(struct nbu2ss_udc *, int);
-static void _nbu2ss_fifo_flush(struct nbu2ss_udc *, struct nbu2ss_ep *);
-
-/*===========================================================================*/
-/* Macro */
-#define	_nbu2ss_zero_len_pkt(udc, epnum)	\
-	_nbu2ss_ep_in_end(udc, epnum, 0, 0)
-
-
-/*===========================================================================*/
-/* Global */
-struct nbu2ss_udc udc_controller;
-
-
-/*-------------------------------------------------------------------------*/
-/* Read */
-static inline u32 _nbu2ss_readl(void *address)
-{
-	return __raw_readl(address);
-}
-
-/*-------------------------------------------------------------------------*/
-/* Write */
-static inline void _nbu2ss_writel(void *address, u32 udata)
-{
-	__raw_writel(udata, address);
-}
-
-/*-------------------------------------------------------------------------*/
-/* Set Bit */
-static inline void _nbu2ss_bitset(void *address, u32 udata)
-{
-	u32	reg_dt = __raw_readl(address) | (udata);
-
-	__raw_writel(reg_dt, address);
-}
-
-/*-------------------------------------------------------------------------*/
-/* Clear Bit */
-static inline void _nbu2ss_bitclr(void *address, u32 udata)
-{
-	u32	reg_dt = __raw_readl(address) & ~(udata);
-
-	__raw_writel(reg_dt, address);
-}
-
-#ifdef UDC_DEBUG_DUMP
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_dump_register(struct nbu2ss_udc *udc)
-{
-	int		i;
-	u32 reg_data;
-
-	pr_info("=== %s()\n", __func__);
-
-	if (udc == NULL) {
-		pr_err("%s udc == NULL\n", __func__);
-		return;
-	}
-
-	spin_unlock(&udc->lock);
-
-	dev_dbg(&udc->dev, "\n-USB REG-\n");
-	for (i = 0x0 ; i < USB_BASE_SIZE ; i += 16) {
-		reg_data =   _nbu2ss_readl(
-			(u32 *)IO_ADDRESS(USB_BASE_ADDRESS + i));
-		dev_dbg(&udc->dev, "USB%04x =%08x", i, (int)reg_data);
-
-		reg_data =  _nbu2ss_readl(
-			(u32 *)IO_ADDRESS(USB_BASE_ADDRESS + i + 4));
-		dev_dbg(&udc->dev, " %08x", (int)reg_data);
-
-		reg_data =  _nbu2ss_readl(
-			(u32 *)IO_ADDRESS(USB_BASE_ADDRESS + i + 8));
-		dev_dbg(&udc->dev, " %08x", (int)reg_data);
-
-		reg_data =  _nbu2ss_readl(
-			(u32 *)IO_ADDRESS(USB_BASE_ADDRESS + i + 12));
-		dev_dbg(&udc->dev, " %08x\n", (int)reg_data);
-
-	}
-
-	spin_lock(&udc->lock);
-}
-#endif /* UDC_DEBUG_DUMP */
-
-/*-------------------------------------------------------------------------*/
-/* Endpoint 0 Callback (Complete) */
-static void _nbu2ss_ep0_complete(struct usb_ep *_ep, struct usb_request *_req)
-{
-	u8		recipient;
-	u16		selector;
-	u32		test_mode;
-	struct usb_ctrlrequest	*p_ctrl;
-	struct nbu2ss_udc *udc;
-
-	if ((_ep == NULL) || (_req == NULL))
-		return;
-
-	udc = (struct nbu2ss_udc *)_req->context;
-	p_ctrl = &udc->ctrl;
-	if ((p_ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
-
-		if (p_ctrl->bRequest == USB_REQ_SET_FEATURE) {
-			/*-------------------------------------------------*/
-			/* SET_FEATURE */
-			recipient = (u8)(p_ctrl->bRequestType & USB_RECIP_MASK);
-			selector  = p_ctrl->wValue;
-			if ((recipient == USB_RECIP_DEVICE) &&
-				(selector == USB_DEVICE_TEST_MODE)) {
-				test_mode = (u32)(p_ctrl->wIndex >> 8);
-				_nbu2ss_set_test_mode(udc, test_mode);
-			}
-		}
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-/* Initialization usb_request */
-static void _nbu2ss_create_ep0_packet(
-	struct nbu2ss_udc *udc,
-	void *p_buf,
-	unsigned length
-)
-{
-	udc->ep0_req.req.buf		= p_buf;
-	udc->ep0_req.req.length		= length;
-	udc->ep0_req.req.dma		= 0;
-	udc->ep0_req.req.zero		= TRUE;
-	udc->ep0_req.req.complete	= _nbu2ss_ep0_complete;
-	udc->ep0_req.req.status		= -EINPROGRESS;
-	udc->ep0_req.req.context	= udc;
-	udc->ep0_req.req.actual		= 0;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Acquisition of the first address of RAM(FIFO) */
-static u32 _nbu2ss_get_begin_ram_address(struct nbu2ss_udc *udc)
-{
-	u32		num, buf_type;
-	u32		data, last_ram_adr, use_ram_size;
-
-	struct ep_regs *p_ep_regs;
-
-	last_ram_adr = (D_RAM_SIZE_CTRL / sizeof(u32)) * 2;
-	use_ram_size = 0;
-
-	for (num = 0; num < NUM_ENDPOINTS - 1; num++) {
-		p_ep_regs = &udc->p_regs->EP_REGS[num];
-		data = _nbu2ss_readl(&p_ep_regs->EP_PCKT_ADRS);
-		buf_type = _nbu2ss_readl(&p_ep_regs->EP_CONTROL) & EPn_BUF_TYPE;
-		if (buf_type == 0) {
-			/* Single Buffer */
-			use_ram_size += (data & EPn_MPKT) / sizeof(u32);
-		} else {
-			/* Double Buffer */
-			use_ram_size += ((data & EPn_MPKT) / sizeof(u32)) * 2;
-		}
-
-		if ((data >> 16) > last_ram_adr)
-			last_ram_adr = data>>16;
-	}
-
-	return last_ram_adr + use_ram_size;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Construction of Endpoint */
-static int _nbu2ss_ep_init(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
-{
-	u32		num;
-	u32		data;
-	u32		begin_adrs;
-
-	if (ep->epnum == 0)
-		return	-EINVAL;
-
-	num = ep->epnum - 1;
-
-	/*-------------------------------------------------------------*/
-	/* RAM Transfer Address */
-	begin_adrs = _nbu2ss_get_begin_ram_address(udc);
-	data = (begin_adrs << 16) | ep->ep.maxpacket;
-	_nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_PCKT_ADRS, data);
-
-	/*-------------------------------------------------------------*/
-	/* Interrupt Enable */
-	data = 1 << (ep->epnum + 8);
-	_nbu2ss_bitset(&udc->p_regs->USB_INT_ENA, data);
-
-	/*-------------------------------------------------------------*/
-	/* Endpoint Type(Mode) */
-	/*   Bulk, Interrupt, ISO */
-	switch (ep->ep_type) {
-	case USB_ENDPOINT_XFER_BULK:
-		data = EPn_BULK;
-		break;
-
-	case USB_ENDPOINT_XFER_INT:
-		data = EPn_BUF_SINGLE | EPn_INTERRUPT;
-		break;
-
-	case USB_ENDPOINT_XFER_ISOC:
-		data = EPn_ISO;
-		break;
-
-	default:
-		data = 0;
-		break;
-	}
-
-	_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-	_nbu2ss_endpoint_toggle_reset(udc, (ep->epnum|ep->direct));
-
-	if (ep->direct == USB_DIR_OUT) {
-		/*---------------------------------------------------------*/
-		/* OUT */
-		data = EPn_EN | EPn_BCLR | EPn_DIR0;
-		_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = (EPn_ONAK | EPn_OSTL_EN | EPn_OSTL);
-		_nbu2ss_bitclr(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = (EPn_OUT_EN | EPn_OUT_END_EN);
-		_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_INT_ENA, data);
-	} else {
-		/*---------------------------------------------------------*/
-		/* IN */
-		data = (EPn_EN | EPn_BCLR | EPn_AUTO);
-		_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = (EPn_ISTL);
-		_nbu2ss_bitclr(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = (EPn_IN_EN | EPn_IN_END_EN);
-		_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_INT_ENA, data);
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Release of Endpoint */
-static int _nbu2ss_epn_exit(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
-{
-	u32		num;
-	u32		data;
-
-	if ((ep->epnum == 0) || (udc->vbus_active == 0))
-		return	-EINVAL;
-
-	num = ep->epnum - 1;
-
-	/*-------------------------------------------------------------*/
-	/* RAM Transfer Address */
-	_nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_PCKT_ADRS, 0);
-
-	/*-------------------------------------------------------------*/
-	/* Interrupt Disable */
-	data = 1 << (ep->epnum + 8);
-	_nbu2ss_bitclr(&udc->p_regs->USB_INT_ENA, data);
-
-	if (ep->direct == USB_DIR_OUT) {
-		/*---------------------------------------------------------*/
-		/* OUT */
-		data = EPn_ONAK | EPn_BCLR;
-		_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = EPn_EN | EPn_DIR0;
-		_nbu2ss_bitclr(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = EPn_OUT_EN | EPn_OUT_END_EN;
-		_nbu2ss_bitclr(&udc->p_regs->EP_REGS[num].EP_INT_ENA, data);
-	} else {
-		/*---------------------------------------------------------*/
-		/* IN */
-		data = EPn_BCLR;
-		_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = EPn_EN | EPn_AUTO;
-		_nbu2ss_bitclr(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-
-		data = EPn_IN_EN | EPn_IN_END_EN;
-		_nbu2ss_bitclr(&udc->p_regs->EP_REGS[num].EP_INT_ENA, data);
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-/* DMA setting (without Endpoint 0) */
-static void _nbu2ss_ep_dma_init(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
-{
-	u32		num;
-	u32		data;
-
-	data = _nbu2ss_readl(&udc->p_regs->USBSSCONF);
-	if (((ep->epnum == 0) || (data & (1 << ep->epnum)) == 0))
-		return;		/* Not Support DMA */
-
-	num = ep->epnum - 1;
-
-	if (ep->direct == USB_DIR_OUT) {
-		/*---------------------------------------------------------*/
-		/* OUT */
-		data = ep->ep.maxpacket;
-		_nbu2ss_writel(&udc->p_regs->EP_DCR[num].EP_DCR2, data);
-
-		/*---------------------------------------------------------*/
-		/* Transfer Direct */
-		data = DCR1_EPn_DIR0;
-		_nbu2ss_bitset(&udc->p_regs->EP_DCR[num].EP_DCR1, data);
-
-		/*---------------------------------------------------------*/
-		/* DMA Mode etc. */
-		data = EPn_STOP_MODE | EPn_STOP_SET  | EPn_DMAMODE0;
-		_nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_DMA_CTRL, data);
-	} else {
-		/*---------------------------------------------------------*/
-		/* IN */
-		_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_CONTROL, EPn_AUTO);
-
-		/*---------------------------------------------------------*/
-		/* DMA Mode etc. */
-		data = EPn_BURST_SET | EPn_DMAMODE0;
-		_nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_DMA_CTRL, data);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-/* DMA setting release */
-static void _nbu2ss_ep_dma_exit(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
-{
-	u32		num;
-	u32		data;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (udc->vbus_active == 0)
-		return;		/* VBUS OFF */
-
-	data = _nbu2ss_readl(&preg->USBSSCONF);
-	if ((ep->epnum == 0) || ((data & (1 << ep->epnum)) == 0))
-		return;		/* Not Support DMA */
-
-	num = ep->epnum - 1;
-
-	_nbu2ss_ep_dma_abort(udc, ep);
-
-	if (ep->direct == USB_DIR_OUT) {
-		/*---------------------------------------------------------*/
-		/* OUT */
-		_nbu2ss_writel(&preg->EP_DCR[num].EP_DCR2, 0);
-		_nbu2ss_bitclr(&preg->EP_DCR[num].EP_DCR1, DCR1_EPn_DIR0);
-		_nbu2ss_writel(&preg->EP_REGS[num].EP_DMA_CTRL, 0);
-	} else {
-		/*---------------------------------------------------------*/
-		/* IN */
-		_nbu2ss_bitclr(&preg->EP_REGS[num].EP_CONTROL, EPn_AUTO);
-		_nbu2ss_writel(&preg->EP_REGS[num].EP_DMA_CTRL, 0);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-/* Abort DMA */
-static void _nbu2ss_ep_dma_abort(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
-{
-	struct fc_regs	*preg = udc->p_regs;
-
-	_nbu2ss_bitclr(&preg->EP_DCR[ep->epnum-1].EP_DCR1, DCR1_EPn_REQEN);
-	mdelay(DMA_DISABLE_TIME);	/* DCR1_EPn_REQEN Clear */
-	_nbu2ss_bitclr(&preg->EP_REGS[ep->epnum-1].EP_DMA_CTRL, EPn_DMA_EN);
-}
-
-/*-------------------------------------------------------------------------*/
-/* Start IN Transfer */
-static void _nbu2ss_ep_in_end(
-	struct nbu2ss_udc *udc,
-	u32 epnum,
-	u32 data32,
-	u32 length
-)
-{
-	u32		data;
-	u32		num;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (length >= sizeof(u32))
-		return;
-
-	if (epnum == 0) {
-		_nbu2ss_bitclr(&preg->EP0_CONTROL, EP0_AUTO);
-
-		/* Writing of 1-4 bytes */
-		if (length)
-			_nbu2ss_writel(&preg->EP0_WRITE, data32);
-
-		data = ((length << 5) & EP0_DW) | EP0_DEND;
-		_nbu2ss_writel(&preg->EP0_CONTROL, data);
-
-		_nbu2ss_bitset(&preg->EP0_CONTROL, EP0_AUTO);
-	} else {
-		num = epnum - 1;
-
-		_nbu2ss_bitclr(&preg->EP_REGS[num].EP_CONTROL, EPn_AUTO);
-
-		/* Writing of 1-4 bytes */
-		if (length)
-			_nbu2ss_writel(&preg->EP_REGS[num].EP_WRITE, data32);
-
-		data = (((((u32)length) << 5) & EPn_DW) | EPn_DEND);
-		_nbu2ss_bitset(&preg->EP_REGS[num].EP_CONTROL, data);
-
-		_nbu2ss_bitset(&preg->EP_REGS[num].EP_CONTROL, EPn_AUTO);
-	}
-}
-
-#ifdef USE_DMA
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_dma_map_single(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	u8		direct
-)
-{
-	if (req->req.dma == DMA_ADDR_INVALID) {
-		if (req->unaligned)
-			req->req.dma = ep->phys_buf;
-		else {
-			req->req.dma = dma_map_single(
-				udc->gadget.dev.parent,
-				req->req.buf,
-				req->req.length,
-				(direct == USB_DIR_IN)
-				? DMA_TO_DEVICE : DMA_FROM_DEVICE);
-		}
-		req->mapped = 1;
-	} else {
-		if (!req->unaligned)
-			dma_sync_single_for_device(
-				udc->gadget.dev.parent,
-				req->req.dma,
-				req->req.length,
-				(direct == USB_DIR_IN)
-				? DMA_TO_DEVICE : DMA_FROM_DEVICE);
-
-		req->mapped = 0;
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_dma_unmap_single(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	u8		direct
-)
-{
-	u8		data[4];
-	u8		*p;
-	u32		count = 0;
-
-	if (direct == USB_DIR_OUT) {
-		count = req->req.actual % 4;
-		if (count) {
-			p = req->req.buf;
-			p += (req->req.actual - count);
-			memcpy(data, p, count);
-		}
-	}
-
-	if (req->mapped) {
-		if (req->unaligned) {
-			if (direct == USB_DIR_OUT)
-				memcpy(req->req.buf, ep->virt_buf,
-					req->req.actual & 0xfffffffc);
-		} else
-			dma_unmap_single(udc->gadget.dev.parent,
-				req->req.dma, req->req.length,
-				(direct == USB_DIR_IN)
-				? DMA_TO_DEVICE
-				: DMA_FROM_DEVICE);
-		req->req.dma = DMA_ADDR_INVALID;
-		req->mapped = 0;
-	} else {
-		if (!req->unaligned)
-			dma_sync_single_for_cpu(udc->gadget.dev.parent,
-				req->req.dma, req->req.length,
-				(direct == USB_DIR_IN)
-				? DMA_TO_DEVICE
-				: DMA_FROM_DEVICE);
-	}
-
-	if (count) {
-		p = req->req.buf;
-		p += (req->req.actual - count);
-		memcpy(p, data, count);
-	}
-}
-#endif
-
-/*-------------------------------------------------------------------------*/
-/* Endpoint 0 OUT Transfer (PIO) */
-static int EP0_out_PIO(struct nbu2ss_udc *udc, u8 *pBuf, u32 length)
-{
-	u32		i;
-	int		nret   = 0;
-	u32		iWordLength = 0;
-	union usb_reg_access *pBuf32 = (union usb_reg_access *)pBuf;
-
-	/*------------------------------------------------------------*/
-	/* Read Length */
-	iWordLength = length / sizeof(u32);
-
-	/*------------------------------------------------------------*/
-	/* PIO Read */
-	if (iWordLength) {
-		for (i = 0; i < iWordLength; i++) {
-			pBuf32->dw = _nbu2ss_readl(&udc->p_regs->EP0_READ);
-			pBuf32++;
-		}
-		nret = iWordLength * sizeof(u32);
-	}
-
-	return nret;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Endpoint 0 OUT Transfer (PIO, OverBytes) */
-static int EP0_out_OverBytes(struct nbu2ss_udc *udc, u8 *pBuf, u32 length)
-{
-	u32		i;
-	u32		iReadSize = 0;
-	union usb_reg_access  Temp32;
-	union usb_reg_access  *pBuf32 = (union usb_reg_access *)pBuf;
-
-	if ((0 < length) && (length < sizeof(u32))) {
-		Temp32.dw = _nbu2ss_readl(&udc->p_regs->EP0_READ);
-		for (i = 0 ; i < length ; i++)
-			pBuf32->byte.DATA[i] = Temp32.byte.DATA[i];
-		iReadSize += length;
-	}
-
-	return iReadSize;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Endpoint 0 IN Transfer (PIO) */
-static int EP0_in_PIO(struct nbu2ss_udc *udc, u8 *pBuf, u32 length)
-{
-	u32		i;
-	u32		iMaxLength   = EP0_PACKETSIZE;
-	u32		iWordLength  = 0;
-	u32		iWriteLength = 0;
-	union usb_reg_access  *pBuf32 = (union usb_reg_access *)pBuf;
-
-	/*------------------------------------------------------------*/
-	/* Transfer Length */
-	if (iMaxLength < length)
-		iWordLength = iMaxLength / sizeof(u32);
-	else
-		iWordLength = length / sizeof(u32);
-
-	/*------------------------------------------------------------*/
-	/* PIO */
-	for (i = 0; i < iWordLength; i++) {
-		_nbu2ss_writel(&udc->p_regs->EP0_WRITE, pBuf32->dw);
-		pBuf32++;
-		iWriteLength += sizeof(u32);
-	}
-
-	return iWriteLength;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Endpoint 0 IN Transfer (PIO, OverBytes) */
-static int EP0_in_OverBytes(struct nbu2ss_udc *udc, u8 *pBuf, u32 iRemainSize)
-{
-	u32		i;
-	union usb_reg_access  Temp32;
-	union usb_reg_access  *pBuf32 = (union usb_reg_access *)pBuf;
-
-	if ((0 < iRemainSize) && (iRemainSize < sizeof(u32))) {
-		for (i = 0 ; i < iRemainSize ; i++)
-			Temp32.byte.DATA[i] = pBuf32->byte.DATA[i];
-		_nbu2ss_ep_in_end(udc, 0, Temp32.dw, iRemainSize);
-
-		return iRemainSize;
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Transfer NULL Packet (Epndoint 0) */
-static int EP0_send_NULL(struct nbu2ss_udc *udc, bool pid_flag)
-{
-	u32		data;
-
-	data = _nbu2ss_readl(&udc->p_regs->EP0_CONTROL);
-	data &= ~(u32)EP0_INAK;
-
-	if (pid_flag)
-		data |= (EP0_INAK_EN | EP0_PIDCLR | EP0_DEND);
-	else
-		data |= (EP0_INAK_EN | EP0_DEND);
-
-	_nbu2ss_writel(&udc->p_regs->EP0_CONTROL, data);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Receive NULL Packet (Endpoint 0) */
-static int EP0_receive_NULL(struct nbu2ss_udc *udc, bool pid_flag)
-{
-	u32		data;
-
-	data = _nbu2ss_readl(&udc->p_regs->EP0_CONTROL);
-	data &= ~(u32)EP0_ONAK;
-
-	if (pid_flag)
-		data |= EP0_PIDCLR;
-
-	_nbu2ss_writel(&udc->p_regs->EP0_CONTROL, data);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_ep0_in_transfer(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req
-)
-{
-	u8		*pBuffer;			/* IN Data Buffer */
-	u32		data;
-	u32		iRemainSize = 0;
-	int		result = 0;
-
-	/*-------------------------------------------------------------*/
-	/* End confirmation */
-	if (req->req.actual == req->req.length) {
-		if ((req->req.actual % EP0_PACKETSIZE) == 0) {
-			if (req->zero) {
-				req->zero = false;
-				EP0_send_NULL(udc, FALSE);
-				return 1;
-			}
-		}
-
-		return 0;		/* Transfer End */
-	}
-
-	/*-------------------------------------------------------------*/
-	/* NAK release */
-	data = _nbu2ss_readl(&udc->p_regs->EP0_CONTROL);
-	data |= EP0_INAK_EN;
-	data &= ~(u32)EP0_INAK;
-	_nbu2ss_writel(&udc->p_regs->EP0_CONTROL, data);
-
-	iRemainSize = req->req.length - req->req.actual;
-	pBuffer = (u8 *)req->req.buf;
-	pBuffer += req->req.actual;
-
-	/*-------------------------------------------------------------*/
-	/* Data transfer */
-	result = EP0_in_PIO(udc, pBuffer, iRemainSize);
-
-	req->div_len = result;
-	iRemainSize -= result;
-
-	if (iRemainSize == 0) {
-		EP0_send_NULL(udc, FALSE);
-		return result;
-	}
-
-	if ((iRemainSize < sizeof(u32)) && (result != EP0_PACKETSIZE)) {
-		pBuffer += result;
-		result += EP0_in_OverBytes(udc, pBuffer, iRemainSize);
-		req->div_len = result;
-	}
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_ep0_out_transfer(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req
-)
-{
-	u8		*pBuffer;
-	u32		iRemainSize;
-	u32		iRecvLength;
-	int		result = 0;
-	int		fRcvZero;
-
-	/*-------------------------------------------------------------*/
-	/* Receive data confirmation */
-	iRecvLength = _nbu2ss_readl(&udc->p_regs->EP0_LENGTH) & EP0_LDATA;
-	if (iRecvLength != 0) {
-
-		fRcvZero = 0;
-
-		iRemainSize = req->req.length - req->req.actual;
-		pBuffer = (u8 *)req->req.buf;
-		pBuffer += req->req.actual;
-
-		result = EP0_out_PIO(udc, pBuffer
-					, min(iRemainSize, iRecvLength));
-		if (result < 0)
-			return result;
-
-		req->req.actual += result;
-		iRecvLength -= result;
-
-		if ((0 < iRecvLength) && (iRecvLength < sizeof(u32))) {
-			pBuffer += result;
-			iRemainSize -= result;
-
-			result = EP0_out_OverBytes(udc, pBuffer
-					, min(iRemainSize, iRecvLength));
-			req->req.actual += result;
-		}
-	} else {
-		fRcvZero = 1;
-	}
-
-	/*-------------------------------------------------------------*/
-	/* End confirmation */
-	if (req->req.actual == req->req.length) {
-		if ((req->req.actual % EP0_PACKETSIZE) == 0) {
-			if (req->zero) {
-				req->zero = false;
-				EP0_receive_NULL(udc, FALSE);
-				return 1;
-			}
-		}
-
-		return 0;		/* Transfer End */
-	}
-
-	if ((req->req.actual % EP0_PACKETSIZE) != 0)
-		return 0;		/* Short Packet Transfer End */
-
-	if (req->req.actual > req->req.length) {
-		dev_err(udc->dev, " *** Overrun Error\n");
-		return -EOVERFLOW;
-	}
-
-	if (fRcvZero != 0) {
-		iRemainSize = _nbu2ss_readl(&udc->p_regs->EP0_CONTROL);
-		if (iRemainSize & EP0_ONAK) {
-			/*---------------------------------------------------*/
-			/* NACK release */
-			_nbu2ss_bitclr(&udc->p_regs->EP0_CONTROL, EP0_ONAK);
-		}
-		result = 1;
-	}
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_out_dma(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_req *req,
-	u32		num,
-	u32		length
-)
-{
-	u8		*pBuffer;
-	u32		mpkt;
-	u32		lmpkt;
-	u32		dmacnt;
-	u32		burst = 1;
-	u32		data;
-	int		result = -EINVAL;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (req->dma_flag)
-		return 1;		/* DMA is forwarded */
-
-	req->dma_flag = TRUE;
-	pBuffer = (u8 *)req->req.dma;
-	pBuffer += req->req.actual;
-
-	/* DMA Address */
-	_nbu2ss_writel(&preg->EP_DCR[num].EP_TADR, (u32)pBuffer);
-
-	/* Number of transfer packets */
-	mpkt = _nbu2ss_readl(&preg->EP_REGS[num].EP_PCKT_ADRS) & EPn_MPKT;
-	dmacnt = (length / mpkt);
-	lmpkt = (length % mpkt) & ~(u32)0x03;
-
-	if (DMA_MAX_COUNT < dmacnt) {
-		dmacnt = DMA_MAX_COUNT;
-		lmpkt = 0;
-	} else if (0 != lmpkt) {
-		if (0 == dmacnt)
-			burst = 0;	/* Burst OFF */
-		dmacnt++;
-	}
-
-	data = mpkt | (lmpkt << 16);
-	_nbu2ss_writel(&preg->EP_DCR[num].EP_DCR2, data);
-
-	data = ((dmacnt & 0xff) << 16) | DCR1_EPn_DIR0 | DCR1_EPn_REQEN;
-	_nbu2ss_writel(&preg->EP_DCR[num].EP_DCR1, data);
-
-	if (0 == burst) {
-		_nbu2ss_writel(&preg->EP_REGS[num].EP_LEN_DCNT, 0);
-		_nbu2ss_bitclr(&preg->EP_REGS[num].EP_DMA_CTRL, EPn_BURST_SET);
-	} else {
-		_nbu2ss_writel(&preg->EP_REGS[num].EP_LEN_DCNT
-				, (dmacnt << 16));
-		_nbu2ss_bitset(&preg->EP_REGS[num].EP_DMA_CTRL, EPn_BURST_SET);
-	}
-	_nbu2ss_bitset(&preg->EP_REGS[num].EP_DMA_CTRL, EPn_DMA_EN);
-
-	result = length & ~(u32)0x03;
-	req->div_len = result;
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_epn_out_pio(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	u32		length
-)
-{
-	u8		*pBuffer;
-	u32		i;
-	u32		data;
-	u32		iWordLength;
-	union usb_reg_access	Temp32;
-	union usb_reg_access	*pBuf32;
-	int		result = 0;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (req->dma_flag)
-		return 1;		/* DMA is forwarded */
-
-	if (length == 0)
-		return 0;
-
-	pBuffer = (u8 *)req->req.buf;
-	pBuf32 = (union usb_reg_access *)(pBuffer + req->req.actual);
-
-	iWordLength = length / sizeof(u32);
-	if (iWordLength > 0) {
-		/*---------------------------------------------------------*/
-		/* Copy of every four bytes */
-		for (i = 0; i < iWordLength; i++) {
-			pBuf32->dw =
-			_nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_READ);
-			pBuf32++;
-		}
-		result = iWordLength * sizeof(u32);
-	}
-
-	data = length - result;
-	if (data > 0) {
-		/*---------------------------------------------------------*/
-		/* Copy of fraction byte */
-		Temp32.dw = _nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_READ);
-		for (i = 0 ; i < data ; i++)
-			pBuf32->byte.DATA[i] = Temp32.byte.DATA[i];
-		result += data;
-	}
-
-	req->req.actual += result;
-
-	if ((req->req.actual == req->req.length)
-			|| ((req->req.actual % ep->ep.maxpacket) != 0)) {
-
-		result = 0;
-	}
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_epn_out_data(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	u32		data_size
-)
-{
-	u32		num;
-	u32		iBufSize;
-	int		nret = 1;
-
-	if (ep->epnum == 0)
-		return -EINVAL;
-
-	num = ep->epnum - 1;
-
-	iBufSize = min((req->req.length - req->req.actual), data_size);
-
-	if ((ep->ep_type != USB_ENDPOINT_XFER_INT)
-		&& (req->req.dma != 0)
-		&& (iBufSize  >= sizeof(u32))) {
-		nret = _nbu2ss_out_dma(udc, req, num, iBufSize);
-	} else {
-		iBufSize = min_t(u32, iBufSize, ep->ep.maxpacket);
-		nret = _nbu2ss_epn_out_pio(udc, ep, req, iBufSize);
-	}
-
-	return nret;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_epn_out_transfer(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req
-)
-{
-	u32		num;
-	u32		iRecvLength;
-	int		result = 1;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (ep->epnum == 0)
-		return -EINVAL;
-
-	num = ep->epnum - 1;
-
-	/*-------------------------------------------------------------*/
-	/* Receive Length */
-	iRecvLength
-		= _nbu2ss_readl(&preg->EP_REGS[num].EP_LEN_DCNT) & EPn_LDATA;
-
-	if (iRecvLength != 0) {
-		result = _nbu2ss_epn_out_data(udc, ep, req, iRecvLength);
-		if (iRecvLength < ep->ep.maxpacket) {
-			if (iRecvLength == result) {
-				req->req.actual += result;
-				result = 0;
-			}
-		}
-	} else {
-		if ((req->req.actual == req->req.length)
-			|| ((req->req.actual % ep->ep.maxpacket) != 0)) {
-
-			result = 0;
-		}
-	}
-
-	if (result == 0) {
-		if ((req->req.actual % ep->ep.maxpacket) == 0) {
-			if (req->zero) {
-				req->zero = false;
-				return 1;
-			}
-		}
-	}
-
-	if (req->req.actual > req->req.length) {
-		dev_err(udc->dev, " Overrun Error\n");
-		dev_err(udc->dev, " actual = %d, length = %d\n",
-			req->req.actual, req->req.length);
-		result = -EOVERFLOW;
-	}
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_in_dma(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	u32		num,
-	u32		length
-)
-{
-	u8		*pBuffer;
-	u32		mpkt;		/* MaxPacketSize */
-	u32		lmpkt;		/* Last Packet Data Size */
-	u32		dmacnt;		/* IN Data Size */
-	u32		iWriteLength;
-	u32		data;
-	int		result = -EINVAL;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (req->dma_flag)
-		return 1;		/* DMA is forwarded */
-
-#ifdef USE_DMA
-	if (req->req.actual == 0)
-		_nbu2ss_dma_map_single(udc, ep, req, USB_DIR_IN);
-#endif
-	req->dma_flag = TRUE;
-
-	/* MAX Packet Size */
-	mpkt = _nbu2ss_readl(&preg->EP_REGS[num].EP_PCKT_ADRS) & EPn_MPKT;
-
-	if ((DMA_MAX_COUNT * mpkt) < length)
-		iWriteLength = DMA_MAX_COUNT * mpkt;
-	else
-		iWriteLength = length;
-
-	/*------------------------------------------------------------*/
-	/* Number of transmission packets */
-	if (mpkt < iWriteLength) {
-		dmacnt = iWriteLength / mpkt;
-		lmpkt  = (iWriteLength % mpkt) & ~(u32)0x3;
-		if (lmpkt != 0)
-			dmacnt++;
-		else
-			lmpkt = mpkt & ~(u32)0x3;
-
-	} else {
-		dmacnt = 1;
-		lmpkt  = iWriteLength & ~(u32)0x3;
-	}
-
-	/* Packet setting */
-	data = mpkt | (lmpkt << 16);
-	_nbu2ss_writel(&preg->EP_DCR[num].EP_DCR2, data);
-
-	/* Address setting */
-	pBuffer = (u8 *)req->req.dma;
-	pBuffer += req->req.actual;
-	_nbu2ss_writel(&preg->EP_DCR[num].EP_TADR, (u32)pBuffer);
-
-	/* Packet and DMA setting */
-	data = ((dmacnt & 0xff) << 16) | DCR1_EPn_REQEN;
-	_nbu2ss_writel(&preg->EP_DCR[num].EP_DCR1, data);
-
-	/* Packet setting of EPC */
-	data = dmacnt << 16;
-	_nbu2ss_writel(&preg->EP_REGS[num].EP_LEN_DCNT, data);
-
-	/*DMA setting of EPC */
-	_nbu2ss_bitset(&preg->EP_REGS[num].EP_DMA_CTRL, EPn_DMA_EN);
-
-	result = iWriteLength & ~(u32)0x3;
-	req->div_len = result;
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_epn_in_pio(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	u32		length
-)
-{
-	u8		*pBuffer;
-	u32		i;
-	u32		data;
-	u32		iWordLength;
-	union usb_reg_access	Temp32;
-	union usb_reg_access	*pBuf32 = NULL;
-	int		result = 0;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (req->dma_flag)
-		return 1;		/* DMA is forwarded */
-
-	if (length > 0) {
-		pBuffer = (u8 *)req->req.buf;
-		pBuf32 = (union usb_reg_access *)(pBuffer + req->req.actual);
-
-		iWordLength = length / sizeof(u32);
-		if (iWordLength > 0) {
-			for (i = 0; i < iWordLength; i++) {
-				_nbu2ss_writel(
-					&preg->EP_REGS[ep->epnum-1].EP_WRITE
-					, pBuf32->dw
-				);
-
-				pBuf32++;
-			}
-			result = iWordLength * sizeof(u32);
-		}
-	}
-
-	if (result != ep->ep.maxpacket) {
-		data = length - result;
-		Temp32.dw = 0;
-		for (i = 0 ; i < data ; i++)
-			Temp32.byte.DATA[i] = pBuf32->byte.DATA[i];
-
-		_nbu2ss_ep_in_end(udc, ep->epnum, Temp32.dw, data);
-		result += data;
-	}
-
-	req->div_len = result;
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_epn_in_data(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	u32		data_size
-)
-{
-	u32		num;
-	int		nret = 1;
-
-	if (ep->epnum == 0)
-		return -EINVAL;
-
-	num = ep->epnum - 1;
-
-	if ((ep->ep_type != USB_ENDPOINT_XFER_INT)
-		&& (req->req.dma != 0)
-		&& (data_size >= sizeof(u32))) {
-		nret = _nbu2ss_in_dma(udc, ep, req, num, data_size);
-	} else {
-		data_size = min_t(u32, data_size, ep->ep.maxpacket);
-		nret = _nbu2ss_epn_in_pio(udc, ep, req, data_size);
-	}
-
-	return nret;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_epn_in_transfer(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req
-)
-{
-	u32		num;
-	u32		iBufSize;
-	int		result = 0;
-	u32		status;
-
-	if (ep->epnum == 0)
-		return -EINVAL;
-
-	num = ep->epnum - 1;
-
-	status = _nbu2ss_readl(&udc->p_regs->EP_REGS[num].EP_STATUS);
-
-	/*-------------------------------------------------------------*/
-	/* State confirmation of FIFO */
-	if (req->req.actual == 0) {
-		if ((status & EPn_IN_EMPTY) == 0)
-			return 1;	/* Not Empty */
-
-	} else {
-		if ((status & EPn_IN_FULL) != 0)
-			return 1;	/* Not Empty */
-	}
-
-	/*-------------------------------------------------------------*/
-	/* Start transfer */
-	iBufSize = req->req.length - req->req.actual;
-	if (iBufSize > 0)
-		result = _nbu2ss_epn_in_data(udc, ep, req, iBufSize);
-	else if (req->req.length == 0)
-		_nbu2ss_zero_len_pkt(udc, ep->epnum);
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_start_transfer(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	bool	bflag)
-{
-	int		nret = -EINVAL;
-
-	req->dma_flag = FALSE;
-	req->div_len = 0;
-
-	if (req->req.length == 0)
-		req->zero = false;
-	else {
-		if ((req->req.length % ep->ep.maxpacket) == 0)
-			req->zero = req->req.zero;
-		else
-			req->zero = false;
-	}
-
-	if (ep->epnum == 0) {
-		/* EP0 */
-		switch (udc->ep0state) {
-		case EP0_IN_DATA_PHASE:
-			nret = _nbu2ss_ep0_in_transfer(udc, ep, req);
-			break;
-
-		case EP0_OUT_DATA_PHASE:
-			nret = _nbu2ss_ep0_out_transfer(udc, ep, req);
-			break;
-
-		case EP0_IN_STATUS_PHASE:
-			nret = EP0_send_NULL(udc, TRUE);
-			break;
-
-		default:
-			break;
-		}
-
-	} else {
-		/* EPn */
-		if (ep->direct == USB_DIR_OUT) {
-			/* OUT */
-			if (bflag == FALSE)
-				nret = _nbu2ss_epn_out_transfer(udc, ep, req);
-		} else {
-			/* IN */
-			nret = _nbu2ss_epn_in_transfer(udc, ep, req);
-		}
-	}
-
-	return nret;
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_restert_transfer(struct nbu2ss_ep *ep)
-{
-	u32		length;
-	bool	bflag = FALSE;
-	struct nbu2ss_req *req;
-
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
-	if (req == NULL)
-		return;
-
-	if (ep->epnum > 0) {
-		length = _nbu2ss_readl(
-			&ep->udc->p_regs->EP_REGS[ep->epnum-1].EP_LEN_DCNT);
-
-		length &= EPn_LDATA;
-		if (length < ep->ep.maxpacket)
-			bflag = TRUE;
-	}
-
-	_nbu2ss_start_transfer(ep->udc, ep, req, bflag);
-}
-
-/*-------------------------------------------------------------------------*/
-/*	Endpoint Toggle Reset */
-static void _nbu2ss_endpoint_toggle_reset(
-	struct nbu2ss_udc *udc,
-	u8 ep_adrs)
-{
-	u8		num;
-	u32		data;
-
-	if ((ep_adrs == 0) || (ep_adrs == 0x80))
-		return;
-
-	num = (ep_adrs & 0x7F) - 1;
-
-	if (ep_adrs & USB_DIR_IN)
-		data = EPn_IPIDCLR;
-	else
-		data = EPn_BCLR | EPn_OPIDCLR;
-
-	_nbu2ss_bitset(&udc->p_regs->EP_REGS[num].EP_CONTROL, data);
-}
-
-/*-------------------------------------------------------------------------*/
-/*	Endpoint STALL set */
-static void _nbu2ss_set_endpoint_stall(
-	struct nbu2ss_udc *udc,
-	u8 ep_adrs,
-	bool bstall)
-{
-	u8		num, epnum;
-	u32		data;
-	struct nbu2ss_ep *ep;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if ((ep_adrs == 0) || (ep_adrs == 0x80)) {
-		if (bstall) {
-			/* Set STALL */
-			_nbu2ss_bitset(&preg->EP0_CONTROL, EP0_STL);
-		} else {
-			/* Clear STALL */
-			_nbu2ss_bitclr(&preg->EP0_CONTROL, EP0_STL);
-		}
-	} else {
-		epnum = ep_adrs & USB_ENDPOINT_NUMBER_MASK;
-		num = epnum - 1;
-		ep = &udc->ep[epnum];
-
-		if (bstall) {
-			/* Set STALL */
-			ep->halted = TRUE;
-
-			if (ep_adrs & USB_DIR_IN)
-				data = EPn_BCLR | EPn_ISTL;
-			else
-				data = EPn_OSTL_EN | EPn_OSTL;
-
-			_nbu2ss_bitset(&preg->EP_REGS[num].EP_CONTROL, data);
-		} else {
-			/* Clear STALL */
-			ep->stalled = FALSE;
-			if (ep_adrs & USB_DIR_IN) {
-				_nbu2ss_bitclr(&preg->EP_REGS[num].EP_CONTROL
-						, EPn_ISTL);
-			} else {
-				data =
-				_nbu2ss_readl(&preg->EP_REGS[num].EP_CONTROL);
-
-				data &= ~EPn_OSTL;
-				data |= EPn_OSTL_EN;
-
-				_nbu2ss_writel(&preg->EP_REGS[num].EP_CONTROL
-						, data);
-			}
-
-			ep->stalled = FALSE;
-			if (ep->halted) {
-				ep->halted = FALSE;
-				_nbu2ss_restert_transfer(ep);
-			}
-		}
-	}
-}
-
-
-/*-------------------------------------------------------------------------*/
-/* Device Descriptor */
-static struct usb_device_descriptor device_desc = {
-	.bLength              = sizeof(device_desc),
-	.bDescriptorType      = USB_DT_DEVICE,
-	.bcdUSB               = cpu_to_le16(0x0200),
-	.bDeviceClass         = USB_CLASS_VENDOR_SPEC,
-	.bDeviceSubClass      = 0x00,
-	.bDeviceProtocol      = 0x00,
-	.bMaxPacketSize0      = 64,
-	.idVendor             = cpu_to_le16(0x0409),
-	.idProduct            = cpu_to_le16(0xfff0),
-	.bcdDevice            = 0xffff,
-	.iManufacturer        = 0x00,
-	.iProduct             = 0x00,
-	.iSerialNumber        = 0x00,
-	.bNumConfigurations   = 0x01,
-};
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_set_test_mode(struct nbu2ss_udc *udc, u32 mode)
-{
-	u32		data;
-
-	if (mode > MAX_TEST_MODE_NUM)
-		return;
-
-	dev_info(udc->dev, "SET FEATURE : test mode = %d\n", mode);
-
-	data = _nbu2ss_readl(&udc->p_regs->USB_CONTROL);
-	data &= ~TEST_FORCE_ENABLE;
-	data |= mode << TEST_MODE_SHIFT;
-
-	_nbu2ss_writel(&udc->p_regs->USB_CONTROL, data);
-	_nbu2ss_bitset(&udc->p_regs->TEST_CONTROL, CS_TESTMODEEN);
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_set_feature_device(
-	struct nbu2ss_udc *udc,
-	u16 selector,
-	u16 wIndex
-)
-{
-	int	result = -EOPNOTSUPP;
-
-	switch (selector) {
-	case USB_DEVICE_REMOTE_WAKEUP:
-		if (0x0000 == wIndex) {
-			udc->remote_wakeup = U2F_ENABLE;
-			result = 0;
-		}
-		break;
-
-	case USB_DEVICE_TEST_MODE:
-		wIndex >>= 8;
-		if (wIndex <= MAX_TEST_MODE_NUM)
-			result = 0;
-		break;
-
-	default:
-		break;
-	}
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_get_ep_stall(struct nbu2ss_udc *udc, u8 ep_adrs)
-{
-	u8		epnum;
-	u32		data = 0, bit_data;
-	struct fc_regs	*preg = udc->p_regs;
-
-	epnum = ep_adrs & ~USB_ENDPOINT_DIR_MASK;
-	if (epnum == 0) {
-		data = _nbu2ss_readl(&preg->EP0_CONTROL);
-		bit_data = EP0_STL;
-
-	} else {
-		data = _nbu2ss_readl(&preg->EP_REGS[epnum-1].EP_CONTROL);
-		if ((data & EPn_EN) == 0)
-			return -1;
-
-		if (ep_adrs & USB_ENDPOINT_DIR_MASK)
-			bit_data = EPn_ISTL;
-		else
-			bit_data = EPn_OSTL;
-	}
-
-	if ((data & bit_data) == 0)
-		return 0;
-	return 1;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline int _nbu2ss_req_feature(struct nbu2ss_udc *udc, bool bset)
-{
-	u8	recipient = (u8)(udc->ctrl.bRequestType & USB_RECIP_MASK);
-	u8	direction = (u8)(udc->ctrl.bRequestType & USB_DIR_IN);
-	u16	selector  = udc->ctrl.wValue;
-	u16	wIndex    = udc->ctrl.wIndex;
-	u8	ep_adrs;
-	int	result = -EOPNOTSUPP;
-
-	if ((0x0000 != udc->ctrl.wLength) ||
-			(USB_DIR_OUT != direction)) {
-		return -EINVAL;
-	}
-
-	switch (recipient) {
-	case USB_RECIP_DEVICE:
-		if (bset)
-			result =
-			_nbu2ss_set_feature_device(udc, selector, wIndex);
-		break;
-
-	case USB_RECIP_ENDPOINT:
-		if (0x0000 == (wIndex & 0xFF70)) {
-			if (USB_ENDPOINT_HALT == selector) {
-				ep_adrs = wIndex & 0xFF;
-				if (bset == FALSE) {
-					_nbu2ss_endpoint_toggle_reset(
-						udc, ep_adrs);
-				}
-
-				_nbu2ss_set_endpoint_stall(
-					udc, ep_adrs, bset);
-
-				result = 0;
-			}
-		}
-		break;
-
-	default:
-		break;
-	}
-
-	if (result >= 0)
-		_nbu2ss_create_ep0_packet(udc, udc->ep0_buf, 0);
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline enum usb_device_speed _nbu2ss_get_speed(struct nbu2ss_udc *udc)
-{
-	u32		data;
-	enum usb_device_speed speed = USB_SPEED_FULL;
-
-	data = _nbu2ss_readl(&udc->p_regs->USB_STATUS);
-	if (data & HIGH_SPEED)
-		speed = USB_SPEED_HIGH;
-
-	return speed;
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_epn_set_stall(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep
-)
-{
-	u8	ep_adrs;
-	u32	regdata;
-	int	limit_cnt = 0;
-
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (ep->direct == USB_DIR_IN) {
-		for (limit_cnt = 0
-			; limit_cnt < IN_DATA_EMPTY_COUNT
-			; limit_cnt++) {
-
-			regdata = _nbu2ss_readl(
-				&preg->EP_REGS[ep->epnum-1].EP_STATUS);
-
-			if ((regdata & EPn_IN_DATA) == 0)
-				break;
-
-			mdelay(1);
-		}
-	}
-
-	ep_adrs = ep->epnum | ep->direct;
-	_nbu2ss_set_endpoint_stall(udc, ep_adrs, 1);
-}
-
-/*-------------------------------------------------------------------------*/
-static int std_req_get_status(struct nbu2ss_udc *udc)
-{
-	u32	length;
-	u16	status_data = 0;
-	u8	recipient = (u8)(udc->ctrl.bRequestType & USB_RECIP_MASK);
-	u8	direction = (u8)(udc->ctrl.bRequestType & USB_DIR_IN);
-	u8	ep_adrs;
-	int	result = -EINVAL;
-
-	if ((0x0000 != udc->ctrl.wValue)
-		|| (USB_DIR_IN != direction)) {
-
-		return result;
-	}
-
-	length = min_t(u16, udc->ctrl.wLength, sizeof(status_data));
-
-	switch (recipient) {
-	case USB_RECIP_DEVICE:
-		if (udc->ctrl.wIndex == 0x0000) {
-			if (udc->gadget.is_selfpowered)
-				status_data |= (1 << USB_DEVICE_SELF_POWERED);
-
-			if (udc->remote_wakeup)
-				status_data |= (1 << USB_DEVICE_REMOTE_WAKEUP);
-
-			result = 0;
-		}
-		break;
-
-	case USB_RECIP_ENDPOINT:
-		if (0x0000 == (udc->ctrl.wIndex & 0xFF70)) {
-			ep_adrs = (u8)(udc->ctrl.wIndex & 0xFF);
-			result = _nbu2ss_get_ep_stall(udc, ep_adrs);
-
-			if (result > 0)
-				status_data |= (1 << USB_ENDPOINT_HALT);
-		}
-		break;
-
-	default:
-		break;
-	}
-
-	if (result >= 0) {
-		memcpy(udc->ep0_buf, &status_data, length);
-		_nbu2ss_create_ep0_packet(udc, udc->ep0_buf, length);
-		_nbu2ss_ep0_in_transfer(udc, &udc->ep[0], &udc->ep0_req);
-
-	} else {
-		dev_err(udc->dev, " Error GET_STATUS\n");
-	}
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int std_req_clear_feature(struct nbu2ss_udc *udc)
-{
-	return _nbu2ss_req_feature(udc, FALSE);
-}
-
-/*-------------------------------------------------------------------------*/
-static int std_req_set_feature(struct nbu2ss_udc *udc)
-{
-	return _nbu2ss_req_feature(udc, TRUE);
-}
-
-/*-------------------------------------------------------------------------*/
-static int std_req_set_address(struct nbu2ss_udc *udc)
-{
-	int		result = 0;
-	u32		wValue = udc->ctrl.wValue;
-
-	if ((0x00 != udc->ctrl.bRequestType)	||
-		(0x0000 != udc->ctrl.wIndex)	||
-		(0x0000 != udc->ctrl.wLength)) {
-		return -EINVAL;
-	}
-
-	if (wValue != (wValue & 0x007F))
-		return -EINVAL;
-
-	wValue <<= USB_ADRS_SHIFT;
-
-	_nbu2ss_writel(&udc->p_regs->USB_ADDRESS, wValue);
-	_nbu2ss_create_ep0_packet(udc, udc->ep0_buf, 0);
-
-	return result;
-}
-
-/*-------------------------------------------------------------------------*/
-static int std_req_set_configuration(struct nbu2ss_udc *udc)
-{
-	u32 ConfigValue = (u32)(udc->ctrl.wValue & 0x00ff);
-
-	if ((0x0000 != udc->ctrl.wIndex)	||
-		(0x0000 != udc->ctrl.wLength)	||
-		(0x00 != udc->ctrl.bRequestType)) {
-		return -EINVAL;
-	}
-
-	udc->curr_config = ConfigValue;
-
-	if (ConfigValue > 0) {
-		_nbu2ss_bitset(&udc->p_regs->USB_CONTROL, CONF);
-		udc->devstate = USB_STATE_CONFIGURED;
-
-	} else {
-		_nbu2ss_bitclr(&udc->p_regs->USB_CONTROL, CONF);
-		udc->devstate = USB_STATE_ADDRESS;
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_read_request_data(struct nbu2ss_udc *udc, u32 *pdata)
-{
-	if ((udc == NULL) && (pdata == NULL))
-		return;
-
-	*pdata = _nbu2ss_readl(&udc->p_regs->SETUP_DATA0);
-	pdata++;
-	*pdata = _nbu2ss_readl(&udc->p_regs->SETUP_DATA1);
-}
-
-/*-------------------------------------------------------------------------*/
-static inline int _nbu2ss_decode_request(struct nbu2ss_udc *udc)
-{
-	bool			bcall_back = TRUE;
-	int			nret = -EINVAL;
-	struct usb_ctrlrequest	*p_ctrl;
-
-	p_ctrl = &udc->ctrl;
-	_nbu2ss_read_request_data(udc, (u32 *)p_ctrl);
-
-	/* ep0 state control */
-	if (p_ctrl->wLength == 0) {
-		udc->ep0state = EP0_IN_STATUS_PHASE;
-
-	} else {
-		if (p_ctrl->bRequestType & USB_DIR_IN)
-			udc->ep0state = EP0_IN_DATA_PHASE;
-		else
-			udc->ep0state = EP0_OUT_DATA_PHASE;
-	}
-
-	if ((p_ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
-		switch (p_ctrl->bRequest) {
-		case USB_REQ_GET_STATUS:
-			nret = std_req_get_status(udc);
-			bcall_back = FALSE;
-			break;
-
-		case USB_REQ_CLEAR_FEATURE:
-			nret = std_req_clear_feature(udc);
-			bcall_back = FALSE;
-			break;
-
-		case USB_REQ_SET_FEATURE:
-			nret = std_req_set_feature(udc);
-			bcall_back = FALSE;
-			break;
-
-		case USB_REQ_SET_ADDRESS:
-			nret = std_req_set_address(udc);
-			bcall_back = FALSE;
-			break;
-
-		case USB_REQ_SET_CONFIGURATION:
-			nret = std_req_set_configuration(udc);
-			break;
-
-		default:
-			break;
-		}
-	}
-
-	if (bcall_back == FALSE) {
-		if (udc->ep0state == EP0_IN_STATUS_PHASE) {
-			if (nret >= 0) {
-				/*--------------------------------------*/
-				/* Status Stage */
-				nret = EP0_send_NULL(udc, TRUE);
-			}
-		}
-
-	} else {
-		spin_unlock(&udc->lock);
-		nret = udc->driver->setup(&udc->gadget, &udc->ctrl);
-		spin_lock(&udc->lock);
-	}
-
-	if (nret < 0)
-		udc->ep0state = EP0_IDLE;
-
-	return nret;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline int _nbu2ss_ep0_in_data_stage(struct nbu2ss_udc *udc)
-{
-	int			nret;
-	struct nbu2ss_req	*req;
-	struct nbu2ss_ep	*ep = &udc->ep[0];
-
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
-	if (req == NULL)
-		req = &udc->ep0_req;
-
-	req->req.actual += req->div_len;
-	req->div_len = 0;
-
-	nret = _nbu2ss_ep0_in_transfer(udc, ep, req);
-	if (nret == 0) {
-		udc->ep0state = EP0_OUT_STATUS_PAHSE;
-		EP0_receive_NULL(udc, TRUE);
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline int _nbu2ss_ep0_out_data_stage(struct nbu2ss_udc *udc)
-{
-	int			nret;
-	struct nbu2ss_req	*req;
-	struct nbu2ss_ep	*ep = &udc->ep[0];
-
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
-	if (req == NULL)
-		req = &udc->ep0_req;
-
-	nret = _nbu2ss_ep0_out_transfer(udc, ep, req);
-	if (nret == 0) {
-		udc->ep0state = EP0_IN_STATUS_PHASE;
-		EP0_send_NULL(udc, TRUE);
-
-	} else if (nret < 0) {
-		_nbu2ss_bitset(&udc->p_regs->EP0_CONTROL, EP0_BCLR);
-		req->req.status = nret;
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline int _nbu2ss_ep0_status_stage(struct nbu2ss_udc *udc)
-{
-	struct nbu2ss_req	*req;
-	struct nbu2ss_ep	*ep = &udc->ep[0];
-
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
-	if (req == NULL) {
-		req = &udc->ep0_req;
-		if (req->req.complete)
-			req->req.complete(&ep->ep, &req->req);
-
-	} else {
-		if (req->req.complete)
-			_nbu2ss_ep_done(ep, req, 0);
-	}
-
-	udc->ep0state = EP0_IDLE;
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_ep0_int(struct nbu2ss_udc *udc)
-{
-	int		i;
-	u32		status;
-	u32		intr;
-	int		nret = -1;
-
-	status = _nbu2ss_readl(&udc->p_regs->EP0_STATUS);
-	intr = status & EP0_STATUS_RW_BIT;
-	_nbu2ss_writel(&udc->p_regs->EP0_STATUS, ~(u32)intr);
-
-	status &= (SETUP_INT | EP0_IN_INT | EP0_OUT_INT
-			| STG_END_INT | EP0_OUT_NULL_INT);
-
-	if (status == 0) {
-		dev_info(udc->dev, "%s Not Decode Interrupt\n", __func__);
-		dev_info(udc->dev, "EP0_STATUS = 0x%08x\n", intr);
-		return;
-	}
-
-	if (udc->gadget.speed == USB_SPEED_UNKNOWN)
-		udc->gadget.speed = _nbu2ss_get_speed(udc);
-
-	for (i = 0; i < EP0_END_XFER; i++) {
-		switch (udc->ep0state) {
-		case EP0_IDLE:
-			if (status & SETUP_INT) {
-				status = 0;
-				nret = _nbu2ss_decode_request(udc);
-			}
-			break;
-
-		case EP0_IN_DATA_PHASE:
-			if (status & EP0_IN_INT) {
-				status &= ~EP0_IN_INT;
-				nret = _nbu2ss_ep0_in_data_stage(udc);
-			}
-			break;
-
-		case EP0_OUT_DATA_PHASE:
-			if (status & EP0_OUT_INT) {
-				status &= ~EP0_OUT_INT;
-				nret = _nbu2ss_ep0_out_data_stage(udc);
-			}
-			break;
-
-		case EP0_IN_STATUS_PHASE:
-			if ((status & STG_END_INT) || (status & SETUP_INT)) {
-				status &= ~(STG_END_INT | EP0_IN_INT);
-				nret = _nbu2ss_ep0_status_stage(udc);
-			}
-			break;
-
-		case EP0_OUT_STATUS_PAHSE:
-			if ((status & STG_END_INT)
-			|| (status & SETUP_INT)
-			|| (status & EP0_OUT_NULL_INT)) {
-				status &= ~(STG_END_INT
-						| EP0_OUT_INT
-						| EP0_OUT_NULL_INT);
-
-				nret = _nbu2ss_ep0_status_stage(udc);
-			}
-
-			break;
-
-		default:
-			status = 0;
-			break;
-		}
-
-		if (status == 0)
-			break;
-	}
-
-	if (nret < 0) {
-		/* Send Stall */
-		_nbu2ss_set_endpoint_stall(udc, 0, TRUE);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_ep_done(
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req,
-	int status)
-{
-	struct nbu2ss_udc *udc = ep->udc;
-
-	list_del_init(&req->queue);
-
-	if (status == -ECONNRESET)
-		_nbu2ss_fifo_flush(udc, ep);
-
-	if (likely(req->req.status == -EINPROGRESS))
-		req->req.status = status;
-
-	if (ep->stalled)
-		_nbu2ss_epn_set_stall(udc, ep);
-	else {
-		if (!list_empty(&ep->queue))
-			_nbu2ss_restert_transfer(ep);
-	}
-
-#ifdef USE_DMA
-	if ((ep->direct == USB_DIR_OUT) && (ep->epnum > 0) &&
-			(req->req.dma != 0))
-		_nbu2ss_dma_unmap_single(udc, ep, req, USB_DIR_OUT);
-#endif
-
-	spin_unlock(&udc->lock);
-	req->req.complete(&ep->ep, &req->req);
-	spin_lock(&udc->lock);
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_epn_in_int(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req)
-{
-	int	result = 0;
-	u32	status;
-
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (req->dma_flag)
-		return;		/* DMA is forwarded */
-
-	req->req.actual += req->div_len;
-	req->div_len = 0;
-
-	if (req->req.actual != req->req.length) {
-		/*---------------------------------------------------------*/
-		/* remainder of data */
-		result = _nbu2ss_epn_in_transfer(udc, ep, req);
-
-	} else {
-		if (req->zero && ((req->req.actual % ep->ep.maxpacket) == 0)) {
-
-			status =
-			_nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_STATUS);
-
-			if ((status & EPn_IN_FULL) == 0) {
-				/*-----------------------------------------*/
-				/* 0 Length Packet */
-				req->zero = false;
-				_nbu2ss_zero_len_pkt(udc, ep->epnum);
-			}
-			return;
-		}
-	}
-
-	if (result <= 0) {
-		/*---------------------------------------------------------*/
-		/* Complete */
-		_nbu2ss_ep_done(ep, req, result);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_epn_out_int(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req)
-{
-	int	result;
-
-	result = _nbu2ss_epn_out_transfer(udc, ep, req);
-	if (result <= 0)
-		_nbu2ss_ep_done(ep, req, result);
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_epn_in_dma_int(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req)
-{
-	u32		mpkt;
-	u32		size;
-	struct usb_request *preq;
-
-	preq = &req->req;
-
-	if (req->dma_flag == FALSE)
-		return;
-
-	preq->actual += req->div_len;
-	req->div_len = 0;
-	req->dma_flag = FALSE;
-
-#ifdef USE_DMA
-	_nbu2ss_dma_unmap_single(udc, ep, req, USB_DIR_IN);
-#endif
-
-	if (preq->actual != preq->length) {
-		_nbu2ss_epn_in_transfer(udc, ep, req);
-	} else {
-		mpkt = ep->ep.maxpacket;
-		size = preq->actual % mpkt;
-		if (size > 0) {
-			if (((preq->actual & 0x03) == 0) && (size < mpkt))
-				_nbu2ss_ep_in_end(udc, ep->epnum, 0, 0);
-		} else {
-			_nbu2ss_epn_in_int(udc, ep, req);
-		}
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_epn_out_dma_int(
-	struct nbu2ss_udc *udc,
-	struct nbu2ss_ep *ep,
-	struct nbu2ss_req *req)
-{
-	int		i;
-	u32		num;
-	u32		dmacnt, ep_dmacnt;
-	u32		mpkt;
-	struct fc_regs	*preg = udc->p_regs;
-
-	num = ep->epnum - 1;
-
-	if (req->req.actual == req->req.length) {
-		if ((req->req.length % ep->ep.maxpacket) && !req->zero) {
-			req->div_len = 0;
-			req->dma_flag = FALSE;
-			_nbu2ss_ep_done(ep, req, 0);
-			return;
-		}
-	}
-
-	ep_dmacnt = _nbu2ss_readl(&preg->EP_REGS[num].EP_LEN_DCNT)
-		 & EPn_DMACNT;
-	ep_dmacnt >>= 16;
-
-	for (i = 0; i < EPC_PLL_LOCK_COUNT; i++) {
-		dmacnt = _nbu2ss_readl(&preg->EP_DCR[num].EP_DCR1)
-			 & DCR1_EPn_DMACNT;
-		dmacnt >>= 16;
-		if (ep_dmacnt == dmacnt)
-			break;
-	}
-
-	_nbu2ss_bitclr(&preg->EP_DCR[num].EP_DCR1, DCR1_EPn_REQEN);
-
-	if (dmacnt != 0) {
-		mpkt = ep->ep.maxpacket;
-		if ((req->div_len % mpkt) == 0)
-			req->div_len -= mpkt * dmacnt;
-	}
-
-	if ((req->req.actual % ep->ep.maxpacket) > 0) {
-		if (req->req.actual == req->div_len) {
-			req->div_len = 0;
-			req->dma_flag = FALSE;
-			_nbu2ss_ep_done(ep, req, 0);
-			return;
-		}
-	}
-
-	req->req.actual += req->div_len;
-	req->div_len = 0;
-	req->dma_flag = FALSE;
-
-	_nbu2ss_epn_out_int(udc, ep, req);
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_epn_int(struct nbu2ss_udc *udc, u32 epnum)
-{
-	u32	num;
-	u32	status;
-
-	struct nbu2ss_req	*req;
-	struct nbu2ss_ep	*ep = &udc->ep[epnum];
-
-	num = epnum - 1;
-
-	/* Interrupt Status */
-	status = _nbu2ss_readl(&udc->p_regs->EP_REGS[num].EP_STATUS);
-
-	/* Interrupt Clear */
-	_nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_STATUS, ~(u32)status);
-
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
-
-	if (req == NULL) {
-		/* pr_warn("=== %s(%d) req == NULL\n", __func__, epnum); */
-		return;
-	}
-
-	if (status & EPn_OUT_END_INT) {
-		status &= ~EPn_OUT_INT;
-		_nbu2ss_epn_out_dma_int(udc, ep, req);
-	}
-
-	if (status & EPn_OUT_INT)
-		_nbu2ss_epn_out_int(udc, ep, req);
-
-	if (status & EPn_IN_END_INT) {
-		status &= ~EPn_IN_INT;
-		_nbu2ss_epn_in_dma_int(udc, ep, req);
-	}
-
-	if (status & EPn_IN_INT)
-		_nbu2ss_epn_in_int(udc, ep, req);
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_ep_int(struct nbu2ss_udc *udc, u32 epnum)
-{
-	if (epnum == 0)
-		_nbu2ss_ep0_int(udc);
-	else
-		_nbu2ss_epn_int(udc, epnum);
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_ep0_enable(struct nbu2ss_udc *udc)
-{
-	_nbu2ss_bitset(&udc->p_regs->EP0_CONTROL, (EP0_AUTO | EP0_BCLR));
-	_nbu2ss_writel(&udc->p_regs->EP0_INT_ENA, EP0_INT_EN_BIT);
-}
-
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_nuke(struct nbu2ss_udc *udc,
-			struct nbu2ss_ep *ep,
-			int status)
-{
-	struct nbu2ss_req *req;
-
-	/* Endpoint Disable */
-	_nbu2ss_epn_exit(udc, ep);
-
-	/* DMA Disable */
-	_nbu2ss_ep_dma_exit(udc, ep);
-
-	if (list_empty(&ep->queue))
-		return 0;
-
-	/* called with irqs blocked */
-	list_for_each_entry(req, &ep->queue, queue) {
-		_nbu2ss_ep_done(ep, req, status);
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_quiesce(struct nbu2ss_udc *udc)
-{
-	struct nbu2ss_ep	*ep;
-
-	udc->gadget.speed = USB_SPEED_UNKNOWN;
-
-	_nbu2ss_nuke(udc, &udc->ep[0], -ESHUTDOWN);
-
-	/* Endpoint n */
-	list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) {
-		_nbu2ss_nuke(udc, ep, -ESHUTDOWN);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_pullup(struct nbu2ss_udc *udc, int is_on)
-{
-	u32	reg_dt;
-
-	if (udc->vbus_active == 0)
-		return -ESHUTDOWN;
-
-	if (is_on) {
-		/* D+ Pullup */
-		if (udc->driver) {
-			reg_dt = (_nbu2ss_readl(&udc->p_regs->USB_CONTROL)
-				| PUE2) & ~(u32)CONNECTB;
-
-			_nbu2ss_writel(&udc->p_regs->USB_CONTROL, reg_dt);
-		}
-
-	} else {
-		/* D+ Pulldown */
-		reg_dt = (_nbu2ss_readl(&udc->p_regs->USB_CONTROL) | CONNECTB)
-			& ~(u32)PUE2;
-
-		_nbu2ss_writel(&udc->p_regs->USB_CONTROL, reg_dt);
-		udc->gadget.speed = USB_SPEED_UNKNOWN;
-	}
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_fifo_flush(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
-{
-	struct fc_regs	*p = udc->p_regs;
-
-	if (udc->vbus_active == 0)
-		return;
-
-	if (ep->epnum == 0) {
-		/* EP0 */
-		_nbu2ss_bitset(&p->EP0_CONTROL, EP0_BCLR);
-
-	} else {
-		/* EPn */
-		_nbu2ss_ep_dma_abort(udc, ep);
-		_nbu2ss_bitset(&p->EP_REGS[ep->epnum - 1].EP_CONTROL, EPn_BCLR);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static int _nbu2ss_enable_controller(struct nbu2ss_udc *udc)
-{
-	int	waitcnt = 0;
-
-	if (udc->udc_enabled)
-		return 0;
-
-	/*
-		Reset
-	*/
-	_nbu2ss_bitset(&udc->p_regs->EPCTR, (DIRPD | EPC_RST));
-	udelay(EPC_RST_DISABLE_TIME);	/* 1us wait */
-
-	_nbu2ss_bitclr(&udc->p_regs->EPCTR, DIRPD);
-	mdelay(EPC_DIRPD_DISABLE_TIME);	/* 1ms wait */
-
-	_nbu2ss_bitclr(&udc->p_regs->EPCTR, EPC_RST);
-
-	_nbu2ss_writel(&udc->p_regs->AHBSCTR, WAIT_MODE);
-
-		_nbu2ss_writel(&udc->p_regs->AHBMCTR,
-			HBUSREQ_MODE | HTRANS_MODE | WBURST_TYPE);
-
-	while (!(_nbu2ss_readl(&udc->p_regs->EPCTR) & PLL_LOCK)) {
-		waitcnt++;
-		udelay(1);	/* 1us wait */
-		if (waitcnt == EPC_PLL_LOCK_COUNT) {
-			dev_err(udc->dev, "*** Reset Cancel failed\n");
-			return -EINVAL;
-		}
-	}
-
-		_nbu2ss_bitset(&udc->p_regs->UTMI_CHARACTER_1, USB_SQUSET);
-
-	_nbu2ss_bitset(&udc->p_regs->USB_CONTROL, (INT_SEL | SOF_RCV));
-
-	/* EP0 */
-	_nbu2ss_ep0_enable(udc);
-
-	/* USB Interrupt Enable */
-	_nbu2ss_bitset(&udc->p_regs->USB_INT_ENA, USB_INT_EN_BIT);
-
-	udc->udc_enabled = TRUE;
-
-	return 0;
-}
-
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_reset_controller(struct nbu2ss_udc *udc)
-{
-	_nbu2ss_bitset(&udc->p_regs->EPCTR, EPC_RST);
-	_nbu2ss_bitclr(&udc->p_regs->EPCTR, EPC_RST);
-}
-
-/*-------------------------------------------------------------------------*/
-static void _nbu2ss_disable_controller(struct nbu2ss_udc *udc)
-{
-	if (udc->udc_enabled) {
-		udc->udc_enabled = FALSE;
-		_nbu2ss_reset_controller(udc);
-		_nbu2ss_bitset(&udc->p_regs->EPCTR, (DIRPD | EPC_RST));
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_check_vbus(struct nbu2ss_udc *udc)
-{
-	int	nret;
-	u32	reg_dt;
-
-	/* chattering */
-	mdelay(VBUS_CHATTERING_MDELAY);		/* wait (ms) */
-
-	/* VBUS ON Check*/
-	reg_dt = gpio_get_value(VBUS_VALUE);
-	if (reg_dt == 0) {
-
-		udc->linux_suspended = 0;
-
-		_nbu2ss_reset_controller(udc);
-		dev_info(udc->dev, " ----- VBUS OFF\n");
-
-		if (udc->vbus_active == 1) {
-			/* VBUS OFF */
-			udc->vbus_active = 0;
-			if (udc->usb_suspended) {
-				udc->usb_suspended = 0;
-				/* _nbu2ss_reset_controller(udc); */
-			}
-			udc->devstate = USB_STATE_NOTATTACHED;
-
-			_nbu2ss_quiesce(udc);
-			if (udc->driver) {
-				spin_unlock(&udc->lock);
-				udc->driver->disconnect(&udc->gadget);
-				spin_lock(&udc->lock);
-			}
-
-			_nbu2ss_disable_controller(udc);
-		}
-	} else {
-		mdelay(5);		/* wait (5ms) */
-		reg_dt = gpio_get_value(VBUS_VALUE);
-		if (reg_dt == 0)
-			return;
-
-		dev_info(udc->dev, " ----- VBUS ON\n");
-
-		if (udc->linux_suspended)
-			return;
-
-		if (udc->vbus_active == 0) {
-			/* VBUS ON */
-			udc->vbus_active = 1;
-			udc->devstate = USB_STATE_POWERED;
-
-			nret = _nbu2ss_enable_controller(udc);
-			if (nret < 0) {
-				_nbu2ss_disable_controller(udc);
-				udc->vbus_active = 0;
-				return;
-			}
-
-			_nbu2ss_pullup(udc, 1);
-
-#ifdef UDC_DEBUG_DUMP
-			_nbu2ss_dump_register(udc);
-#endif /* UDC_DEBUG_DUMP */
-
-		} else {
-			if (udc->devstate == USB_STATE_POWERED)
-				_nbu2ss_pullup(udc, 1);
-		}
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_int_bus_reset(struct nbu2ss_udc *udc)
-{
-	udc->devstate		= USB_STATE_DEFAULT;
-	udc->remote_wakeup	= 0;
-
-	_nbu2ss_quiesce(udc);
-
-	udc->ep0state = EP0_IDLE;
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_int_usb_resume(struct nbu2ss_udc *udc)
-{
-	if (udc->usb_suspended == 1) {
-		udc->usb_suspended = 0;
-		if (udc->driver && udc->driver->resume) {
-			spin_unlock(&udc->lock);
-			udc->driver->resume(&udc->gadget);
-			spin_lock(&udc->lock);
-		}
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static inline void _nbu2ss_int_usb_suspend(struct nbu2ss_udc *udc)
-{
-	u32	reg_dt;
-
-	if (udc->usb_suspended == 0) {
-		reg_dt = gpio_get_value(VBUS_VALUE);
-
-		if (reg_dt == 0)
-			return;
-
-		udc->usb_suspended = 1;
-		if (udc->driver && udc->driver->suspend) {
-			spin_unlock(&udc->lock);
-			udc->driver->suspend(&udc->gadget);
-			spin_lock(&udc->lock);
-		}
-
-		_nbu2ss_bitset(&udc->p_regs->USB_CONTROL, SUSPEND);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-/* VBUS (GPIO153) Interrupt */
-static irqreturn_t _nbu2ss_vbus_irq(int irq, void *_udc)
-{
-	struct nbu2ss_udc	*udc = (struct nbu2ss_udc *)_udc;
-
-	spin_lock(&udc->lock);
-	_nbu2ss_check_vbus(udc);
-	spin_unlock(&udc->lock);
-
-	return IRQ_HANDLED;
-}
-
-/*-------------------------------------------------------------------------*/
-/* Interrupt (udc) */
-static irqreturn_t _nbu2ss_udc_irq(int irq, void *_udc)
-{
-	u8	suspend_flag = 0;
-	u32	status;
-	u32	epnum, int_bit;
-
-	struct nbu2ss_udc	*udc = (struct nbu2ss_udc *)_udc;
-	struct fc_regs	*preg = udc->p_regs;
-
-	if (gpio_get_value(VBUS_VALUE) == 0) {
-		_nbu2ss_writel(&preg->USB_INT_STA, ~USB_INT_STA_RW);
-		_nbu2ss_writel(&preg->USB_INT_ENA, 0);
-		return IRQ_HANDLED;
-	}
-
-	spin_lock(&udc->lock);
-
-	for (;;) {
-		if (gpio_get_value(VBUS_VALUE) == 0) {
-			_nbu2ss_writel(&preg->USB_INT_STA, ~USB_INT_STA_RW);
-			_nbu2ss_writel(&preg->USB_INT_ENA, 0);
-			status = 0;
-		} else
-			status = _nbu2ss_readl(&preg->USB_INT_STA);
-
-		if (status == 0)
-			break;
-
-		_nbu2ss_writel(&preg->USB_INT_STA, ~(status & USB_INT_STA_RW));
-
-		if (status & USB_RST_INT) {
-			/* USB Reset */
-			_nbu2ss_int_bus_reset(udc);
-		}
-
-		if (status & RSUM_INT) {
-			/* Resume */
-			_nbu2ss_int_usb_resume(udc);
-		}
-
-		if (status & SPND_INT) {
-			/* Suspend */
-			suspend_flag = 1;
-		}
-
-		if (status & EPn_INT) {
-			/* EP INT */
-			int_bit = status >> 8;
-
-			for (epnum = 0; epnum < NUM_ENDPOINTS; epnum++) {
-
-				if (0x01 & int_bit)
-					_nbu2ss_ep_int(udc, epnum);
-
-				int_bit >>= 1;
-
-				if (int_bit == 0)
-					break;
-			}
-		}
-	}
-
-	if (suspend_flag)
-		_nbu2ss_int_usb_suspend(udc);
-
-	spin_unlock(&udc->lock);
-
-	return IRQ_HANDLED;
-}
-
-/*-------------------------------------------------------------------------*/
-/* usb_ep_ops */
-static int nbu2ss_ep_enable(
-	struct usb_ep *_ep,
-	const struct usb_endpoint_descriptor *desc)
-{
-	u8		ep_type;
-	unsigned long	flags;
-
-	struct nbu2ss_ep	*ep;
-	struct nbu2ss_udc	*udc;
-
-	if ((_ep == NULL) || (desc == NULL)) {
-		pr_err(" *** %s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	ep = container_of(_ep, struct nbu2ss_ep, ep);
-	if ((ep == NULL) || (ep->udc == NULL)) {
-		pr_err(" *** %s, ep == NULL !!\n", __func__);
-		return -EINVAL;
-	}
-
-	ep_type = usb_endpoint_type(desc);
-	if ((ep_type == USB_ENDPOINT_XFER_CONTROL)
-		|| (ep_type == USB_ENDPOINT_XFER_ISOC)) {
-
-		pr_err(" *** %s, bat bmAttributes\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = ep->udc;
-	if (udc->vbus_active == 0)
-		return -ESHUTDOWN;
-
-	if ((udc->driver == NULL)
-		|| (udc->gadget.speed == USB_SPEED_UNKNOWN)) {
-
-		dev_err(ep->udc->dev, " *** %s, udc !!\n", __func__);
-		return -ESHUTDOWN;
-	}
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-	ep->desc = desc;
-	ep->epnum = usb_endpoint_num(desc);
-	ep->direct = desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK;
-	ep->ep_type = ep_type;
-	ep->wedged = 0;
-	ep->halted = FALSE;
-	ep->stalled = FALSE;
-
-	ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
-
-	/* DMA setting */
-	_nbu2ss_ep_dma_init(udc, ep);
-
-	/* Endpoint setting */
-	_nbu2ss_ep_init(udc, ep);
-
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_ep_disable(struct usb_ep *_ep)
-{
-	struct nbu2ss_ep	*ep;
-	struct nbu2ss_udc	*udc;
-	unsigned long		flags;
-
-	if (_ep == NULL) {
-		pr_err(" *** %s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	ep = container_of(_ep, struct nbu2ss_ep, ep);
-	if ((ep == NULL) || (ep->udc == NULL)) {
-		pr_err("udc: *** %s, ep == NULL !!\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = ep->udc;
-	if (udc->vbus_active == 0)
-		return -ESHUTDOWN;
-
-	spin_lock_irqsave(&udc->lock, flags);
-	_nbu2ss_nuke(udc, ep, -EINPROGRESS);		/* dequeue request */
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static struct usb_request *nbu2ss_ep_alloc_request(
-	struct usb_ep *ep,
-	gfp_t gfp_flags)
-{
-	struct nbu2ss_req *req;
-
-	req = kzalloc(sizeof(*req), gfp_flags);
-	if (!req)
-		return 0;
-
-#ifdef USE_DMA
-	req->req.dma = DMA_ADDR_INVALID;
-#endif
-	INIT_LIST_HEAD(&req->queue);
-
-	return &req->req;
-}
-
-/*-------------------------------------------------------------------------*/
-static void nbu2ss_ep_free_request(
-	struct usb_ep *_ep,
-	struct usb_request *_req)
-{
-	struct nbu2ss_req *req;
-
-	if (_req != NULL) {
-		req = container_of(_req, struct nbu2ss_req, req);
-
-		kfree(req);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_ep_queue(
-	struct usb_ep *_ep,
-	struct usb_request *_req,
-	gfp_t gfp_flags)
-{
-	struct nbu2ss_req	*req;
-	struct nbu2ss_ep	*ep;
-	struct nbu2ss_udc	*udc;
-	unsigned long		flags;
-	bool			bflag;
-	int			result = -EINVAL;
-
-	/* catch various bogus parameters */
-	if ((_ep == NULL) || (_req == NULL)) {
-		if (_ep == NULL)
-			pr_err("udc: %s --- _ep == NULL\n", __func__);
-
-		if (_req == NULL)
-			pr_err("udc: %s --- _req == NULL\n", __func__);
-
-		return -EINVAL;
-	}
-
-	req = container_of(_req, struct nbu2ss_req, req);
-	if (unlikely
-	    (!_req->complete || !_req->buf
-	     || !list_empty(&req->queue))) {
-
-		if (!_req->complete)
-			pr_err("udc: %s --- !_req->complete\n", __func__);
-
-		if (!_req->buf)
-			pr_err("udc:%s --- !_req->buf\n", __func__);
-
-		if (!list_empty(&req->queue))
-			pr_err("%s --- !list_empty(&req->queue)\n", __func__);
-
-		return -EINVAL;
-	}
-
-	ep = container_of(_ep, struct nbu2ss_ep, ep);
-	udc = ep->udc;
-
-	if (udc->vbus_active == 0) {
-		dev_info(udc->dev, "Can't ep_queue (VBUS OFF)\n");
-		return -ESHUTDOWN;
-	}
-
-	if (unlikely(!udc->driver)) {
-		dev_err(udc->dev, "%s, bogus device state %p\n", __func__,
-				udc->driver);
-		return -ESHUTDOWN;
-	}
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-#ifdef USE_DMA
-	if ((u32)req->req.buf & 0x3)
-		req->unaligned = TRUE;
-	else
-		req->unaligned = FALSE;
-
-	if (req->unaligned) {
-		if (ep->virt_buf == NULL)
-			ep->virt_buf = (u8 *)dma_alloc_coherent(
-				NULL, PAGE_SIZE,
-				&ep->phys_buf, GFP_ATOMIC | GFP_DMA);
-		if (ep->epnum > 0)  {
-			if (ep->direct == USB_DIR_IN)
-				memcpy(ep->virt_buf, req->req.buf,
-					req->req.length);
-		}
-	}
-
-	if ((ep->epnum > 0) && (ep->direct == USB_DIR_OUT) &&
-			(req->req.dma != 0))
-		_nbu2ss_dma_map_single(udc, ep, req, USB_DIR_OUT);
-#endif
-
-	_req->status = -EINPROGRESS;
-	_req->actual = 0;
-
-	bflag = list_empty(&ep->queue);
-	list_add_tail(&req->queue, &ep->queue);
-
-	if ((bflag != FALSE) && (ep->stalled == FALSE)) {
-
-		result = _nbu2ss_start_transfer(udc, ep, req, FALSE);
-		if (result < 0) {
-			dev_err(udc->dev, " *** %s, result = %d\n", __func__,
-					result);
-			list_del(&req->queue);
-		} else if ((ep->epnum > 0) && (ep->direct == USB_DIR_OUT)) {
-#ifdef USE_DMA
-			if (req->req.length < 4 &&
-				req->req.length == req->req.actual)
-#else
-			if (req->req.length == req->req.actual)
-#endif
-				_nbu2ss_ep_done(ep, req, result);
-		}
-	}
-
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_ep_dequeue(
-	struct usb_ep *_ep,
-	struct usb_request *_req)
-{
-	struct nbu2ss_req	*req;
-	struct nbu2ss_ep	*ep;
-	struct nbu2ss_udc	*udc;
-	unsigned long flags;
-
-	/* catch various bogus parameters */
-	if ((_ep == NULL) || (_req == NULL)) {
-		/* pr_err("%s, bad param(1)\n", __func__); */
-		return -EINVAL;
-	}
-
-	ep = container_of(_ep, struct nbu2ss_ep, ep);
-	if (!ep) {
-		pr_err("%s, ep == NULL !!\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = ep->udc;
-	if (udc == NULL)
-		return -EINVAL;
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-	/* make sure it's actually queued on this endpoint */
-	list_for_each_entry(req, &ep->queue, queue) {
-		if (&req->req == _req)
-			break;
-	}
-	if (&req->req != _req) {
-		spin_unlock_irqrestore(&udc->lock, flags);
-		pr_debug("%s no queue(EINVAL)\n", __func__);
-		return -EINVAL;
-	}
-
-	_nbu2ss_ep_done(ep, req, -ECONNRESET);
-
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_ep_set_halt(struct usb_ep *_ep, int value)
-{
-	u8		ep_adrs;
-	unsigned long	flags;
-
-	struct nbu2ss_ep	*ep;
-	struct nbu2ss_udc	*udc;
-
-	if (!_ep) {
-		pr_err("%s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	ep = container_of(_ep, struct nbu2ss_ep, ep);
-	if (!ep) {
-		pr_err("%s, bad ep\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = ep->udc;
-	if (!udc) {
-		dev_err(ep->udc->dev, " *** %s, bad udc\n", __func__);
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-	ep_adrs = ep->epnum | ep->direct;
-	if (value == 0) {
-		_nbu2ss_set_endpoint_stall(udc, ep_adrs, value);
-		ep->stalled = FALSE;
-	} else {
-		if (list_empty(&ep->queue))
-			_nbu2ss_epn_set_stall(udc, ep);
-		else
-			ep->stalled = TRUE;
-	}
-
-	if (value == 0)
-		ep->wedged = 0;
-
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-static int nbu2ss_ep_set_wedge(struct usb_ep *_ep)
-{
-	return nbu2ss_ep_set_halt(_ep, 1);
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_ep_fifo_status(struct usb_ep *_ep)
-{
-	u32		data;
-	struct nbu2ss_ep	*ep;
-	struct nbu2ss_udc	*udc;
-	unsigned long		flags;
-	struct fc_regs		*preg;
-
-	if (!_ep) {
-		pr_err("%s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	ep = container_of(_ep, struct nbu2ss_ep, ep);
-	if (!ep) {
-		pr_err("%s, bad ep\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = ep->udc;
-	if (!udc) {
-		dev_err(ep->udc->dev, "%s, bad udc\n", __func__);
-		return -EINVAL;
-	}
-
-	preg = udc->p_regs;
-
-	data = gpio_get_value(VBUS_VALUE);
-	if (data == 0)
-		return -EINVAL;
-
-	spin_lock_irqsave(&udc->lock, flags);
-
-	if (ep->epnum == 0) {
-		data = _nbu2ss_readl(&preg->EP0_LENGTH) & EP0_LDATA;
-
-	} else {
-		data = _nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_LEN_DCNT)
-			& EPn_LDATA;
-	}
-
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static void  nbu2ss_ep_fifo_flush(struct usb_ep *_ep)
-{
-	u32			data;
-	struct nbu2ss_ep	*ep;
-	struct nbu2ss_udc	*udc;
-	unsigned long		flags;
-
-	if (!_ep) {
-		pr_err("udc: %s, bad param\n", __func__);
-		return;
-	}
-
-	ep = container_of(_ep, struct nbu2ss_ep, ep);
-	if (!ep) {
-		pr_err("udc: %s, bad ep\n", __func__);
-		return;
-	}
-
-	udc = ep->udc;
-	if (!udc) {
-		dev_err(ep->udc->dev, "%s, bad udc\n", __func__);
-		return;
-	}
-
-	data = gpio_get_value(VBUS_VALUE);
-	if (data == 0)
-		return;
-
-	spin_lock_irqsave(&udc->lock, flags);
-	_nbu2ss_fifo_flush(udc, ep);
-	spin_unlock_irqrestore(&udc->lock, flags);
-}
-
-/*-------------------------------------------------------------------------*/
-static struct usb_ep_ops nbu2ss_ep_ops = {
-	.enable		= nbu2ss_ep_enable,
-	.disable	= nbu2ss_ep_disable,
-
-	.alloc_request	= nbu2ss_ep_alloc_request,
-	.free_request	= nbu2ss_ep_free_request,
-
-	.queue		= nbu2ss_ep_queue,
-	.dequeue	= nbu2ss_ep_dequeue,
-
-	.set_halt	= nbu2ss_ep_set_halt,
-	.set_wedge	= nbu2ss_ep_set_wedge,
-
-	.fifo_status	= nbu2ss_ep_fifo_status,
-	.fifo_flush	= nbu2ss_ep_fifo_flush,
-};
-
-
-/*-------------------------------------------------------------------------*/
-/* usb_gadget_ops */
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_gad_get_frame(struct usb_gadget *pgadget)
-{
-	u32			data;
-	struct nbu2ss_udc	*udc;
-
-	if (pgadget == NULL) {
-		pr_err("udc: %s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = container_of(pgadget, struct nbu2ss_udc, gadget);
-	if (udc == NULL) {
-		dev_err(&pgadget->dev, "%s, udc == NULL\n", __func__);
-		return -EINVAL;
-	}
-
-	data = gpio_get_value(VBUS_VALUE);
-	if (data == 0)
-		return -EINVAL;
-
-	data = _nbu2ss_readl(&udc->p_regs->USB_ADDRESS) & FRAME;
-
-	return data;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_gad_wakeup(struct usb_gadget *pgadget)
-{
-	int	i;
-	u32	data;
-
-	struct nbu2ss_udc	*udc;
-
-	if (pgadget == NULL) {
-		pr_err("%s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = container_of(pgadget, struct nbu2ss_udc, gadget);
-	if (udc == NULL) {
-		dev_err(&pgadget->dev, "%s, udc == NULL\n", __func__);
-		return -EINVAL;
-	}
-
-	data = gpio_get_value(VBUS_VALUE);
-	if (data == 0) {
-		dev_warn(&pgadget->dev, "VBUS LEVEL = %d\n", data);
-		return -EINVAL;
-	}
-
-	_nbu2ss_bitset(&udc->p_regs->EPCTR, PLL_RESUME);
-
-	for (i = 0; i < EPC_PLL_LOCK_COUNT; i++) {
-		data = _nbu2ss_readl(&udc->p_regs->EPCTR);
-
-		if (data & PLL_LOCK)
-			break;
-	}
-
-	_nbu2ss_bitclr(&udc->p_regs->EPCTR, PLL_RESUME);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_gad_set_selfpowered(struct usb_gadget *pgadget,
-					int is_selfpowered)
-{
-	struct nbu2ss_udc       *udc;
-	unsigned long		flags;
-
-	if (pgadget == NULL) {
-		pr_err("%s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = container_of(pgadget, struct nbu2ss_udc, gadget);
-
-	spin_lock_irqsave(&udc->lock, flags);
-	pgadget->is_selfpowered = (is_selfpowered != 0);
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_gad_vbus_session(struct usb_gadget *pgadget, int is_active)
-{
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_gad_vbus_draw(struct usb_gadget *pgadget, unsigned mA)
-{
-	struct nbu2ss_udc	*udc;
-	unsigned long		flags;
-
-	if (pgadget == NULL) {
-		pr_err("%s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = container_of(pgadget, struct nbu2ss_udc, gadget);
-
-	spin_lock_irqsave(&udc->lock, flags);
-	udc->mA = mA;
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_gad_pullup(struct usb_gadget *pgadget, int is_on)
-{
-	struct nbu2ss_udc	*udc;
-	unsigned long		flags;
-
-	if (pgadget == NULL) {
-		pr_err("%s, bad param\n", __func__);
-		return -EINVAL;
-	}
-
-	udc = container_of(pgadget, struct nbu2ss_udc, gadget);
-
-	if (udc->driver == NULL) {
-		pr_warn("%s, Not Regist Driver\n", __func__);
-		return -EINVAL;
-	}
-
-	if (udc->vbus_active == 0)
-		return -ESHUTDOWN;
-
-	spin_lock_irqsave(&udc->lock, flags);
-	_nbu2ss_pullup(udc, is_on);
-	spin_unlock_irqrestore(&udc->lock, flags);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_gad_ioctl(
-	struct usb_gadget *pgadget,
-	unsigned code,
-	unsigned long param)
-{
-	return 0;
-}
-
-
-static const struct usb_gadget_ops nbu2ss_gadget_ops = {
-	.get_frame		= nbu2ss_gad_get_frame,
-	.wakeup			= nbu2ss_gad_wakeup,
-	.set_selfpowered	= nbu2ss_gad_set_selfpowered,
-	.vbus_session		= nbu2ss_gad_vbus_session,
-	.vbus_draw		= nbu2ss_gad_vbus_draw,
-	.pullup			= nbu2ss_gad_pullup,
-	.ioctl			= nbu2ss_gad_ioctl,
-};
-
-static const struct {
-	const char *name;
-	const struct usb_ep_caps caps;
-} ep_info[NUM_ENDPOINTS] = {
-#define EP_INFO(_name, _caps) \
-	{ \
-		.name = _name, \
-		.caps = _caps, \
-	}
-
-	EP_INFO("ep0",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("ep1-bulk",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("ep2-bulk",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("ep3in-int",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
-	EP_INFO("ep4-iso",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("ep5-iso",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("ep6-bulk",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("ep7-bulk",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("ep8in-int",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
-	EP_INFO("ep9-iso",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("epa-iso",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("epb-bulk",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("epc-bulk",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
-	EP_INFO("epdin-int",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
-
-#undef EP_INFO
-};
-
-/*-------------------------------------------------------------------------*/
-static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
-{
-	int	i;
-
-	INIT_LIST_HEAD(&udc->gadget.ep_list);
-	udc->gadget.ep0 = &udc->ep[0].ep;
-
-	for (i = 0; i < NUM_ENDPOINTS; i++) {
-		struct nbu2ss_ep *ep = &udc->ep[i];
-
-		ep->udc = udc;
-		ep->desc = NULL;
-
-		ep->ep.driver_data = NULL;
-		ep->ep.name = ep_info[i].name;
-		ep->ep.caps = ep_info[i].caps;
-		ep->ep.ops = &nbu2ss_ep_ops;
-
-		usb_ep_set_maxpacket_limit(&ep->ep,
-				i == 0 ? EP0_PACKETSIZE : EP_PACKETSIZE);
-
-		list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
-		INIT_LIST_HEAD(&ep->queue);
-	}
-
-	list_del_init(&udc->ep[0].ep.ep_list);
-}
-
-/*-------------------------------------------------------------------------*/
-/* platform_driver */
-static int __init nbu2ss_drv_contest_init(
-	struct platform_device *pdev,
-	struct nbu2ss_udc *udc)
-{
-	spin_lock_init(&udc->lock);
-	udc->dev = &pdev->dev;
-
-	udc->gadget.is_selfpowered = 1;
-	udc->devstate = USB_STATE_NOTATTACHED;
-	udc->pdev = pdev;
-	udc->mA = 0;
-
-	udc->pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-
-	/* init Endpoint */
-	nbu2ss_drv_ep_init(udc);
-
-	/* init Gadget */
-	udc->gadget.ops = &nbu2ss_gadget_ops;
-	udc->gadget.ep0 = &udc->ep[0].ep;
-	udc->gadget.speed = USB_SPEED_UNKNOWN;
-	udc->gadget.name = driver_name;
-	/* udc->gadget.is_dualspeed = 1; */
-
-	device_initialize(&udc->gadget.dev);
-
-	dev_set_name(&udc->gadget.dev, "gadget");
-	udc->gadget.dev.parent = &pdev->dev;
-	udc->gadget.dev.dma_mask = pdev->dev.dma_mask;
-
-	return 0;
-}
-
-/*
- *	probe - binds to the platform device
- */
-static int nbu2ss_drv_probe(struct platform_device *pdev)
-{
-	int	status = -ENODEV;
-	struct nbu2ss_udc	*udc;
-	struct resource *r;
-	int irq;
-	void __iomem *mmio_base;
-
-	udc = &udc_controller;
-	memset(udc, 0, sizeof(struct nbu2ss_udc));
-
-	platform_set_drvdata(pdev, udc);
-
-	/* require I/O memory and IRQ to be provided as resources */
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	mmio_base = devm_ioremap_resource(&pdev->dev, r);
-	if (IS_ERR(mmio_base))
-		return PTR_ERR(mmio_base);
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "failed to get IRQ\n");
-		return irq;
-	}
-	status = devm_request_irq(&pdev->dev, irq, _nbu2ss_udc_irq,
-				  0, driver_name, udc);
-
-	/* IO Memory */
-	udc->p_regs = (struct fc_regs *)mmio_base;
-
-	/* USB Function Controller Interrupt */
-	if (status != 0) {
-		dev_err(udc->dev, "request_irq(USB_UDC_IRQ_1) failed\n");
-		goto cleanup1;
-	}
-
-	/* Driver Initialization */
-	status = nbu2ss_drv_contest_init(pdev, udc);
-	if (status < 0) {
-		/* Error */
-		goto cleanup1;
-	}
-
-	/* VBUS Interrupt */
-	irq_set_irq_type(INT_VBUS, IRQ_TYPE_EDGE_BOTH);
-	status = request_irq(INT_VBUS,
-				_nbu2ss_vbus_irq,
-				IRQF_SHARED,
-				driver_name,
-				udc);
-
-	if (status != 0) {
-		dev_err(udc->dev, "request_irq(INT_VBUS) failed\n");
-		goto cleanup1;
-	}
-
-	return status;
-
-cleanup1:
-	return status;
-}
-
-/*-------------------------------------------------------------------------*/
-static void nbu2ss_drv_shutdown(struct platform_device *pdev)
-{
-	struct nbu2ss_udc	*udc;
-
-	udc = platform_get_drvdata(pdev);
-	if (udc == NULL)
-		return;
-
-	_nbu2ss_disable_controller(udc);
-}
-
-/*-------------------------------------------------------------------------*/
-static int __exit nbu2ss_drv_remove(struct platform_device *pdev)
-{
-	struct nbu2ss_udc	*udc;
-	struct nbu2ss_ep	*ep;
-	int	i;
-
-	udc = &udc_controller;
-
-	for (i = 0; i < NUM_ENDPOINTS; i++) {
-		ep = &udc->ep[i];
-		if (ep->virt_buf)
-			dma_free_coherent(NULL, PAGE_SIZE,
-				(void *)ep->virt_buf, ep->phys_buf);
-	}
-
-	/* Interrupt Handler - Release */
-	free_irq(INT_VBUS, udc);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_drv_suspend(struct platform_device *pdev, pm_message_t state)
-{
-	struct nbu2ss_udc	*udc;
-
-	udc = platform_get_drvdata(pdev);
-	if (udc == NULL)
-		return 0;
-
-	if (udc->vbus_active) {
-		udc->vbus_active = 0;
-		udc->devstate = USB_STATE_NOTATTACHED;
-		udc->linux_suspended = 1;
-
-		if (udc->usb_suspended) {
-			udc->usb_suspended = 0;
-			_nbu2ss_reset_controller(udc);
-		}
-
-		_nbu2ss_quiesce(udc);
-	}
-	_nbu2ss_disable_controller(udc);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int nbu2ss_drv_resume(struct platform_device *pdev)
-{
-	u32	data;
-	struct nbu2ss_udc	*udc;
-
-	udc = platform_get_drvdata(pdev);
-	if (udc == NULL)
-		return 0;
-
-	data = gpio_get_value(VBUS_VALUE);
-	if (data) {
-		udc->vbus_active = 1;
-		udc->devstate = USB_STATE_POWERED;
-		_nbu2ss_enable_controller(udc);
-		_nbu2ss_pullup(udc, 1);
-	}
-
-	udc->linux_suspended = 0;
-
-	return 0;
-}
-
-
-static struct platform_driver udc_driver = {
-	.probe		= nbu2ss_drv_probe,
-	.shutdown	= nbu2ss_drv_shutdown,
-	.remove		= __exit_p(nbu2ss_drv_remove),
-	.suspend	= nbu2ss_drv_suspend,
-	.resume		= nbu2ss_drv_resume,
-	.driver		= {
-		.name	= driver_name,
-	},
-};
-
-module_platform_driver(udc_driver);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("Renesas Electronics Corporation");
-MODULE_LICENSE("GPL");
-
-
diff --git a/drivers/staging/emxx_udc/emxx_udc.h b/drivers/staging/emxx_udc/emxx_udc.h
deleted file mode 100644
index 0db6b41333ea..000000000000
--- a/drivers/staging/emxx_udc/emxx_udc.h
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- *  EMXX FCD (Function Controller Driver) for USB.
- *
- *  Copyright (C) 2010 Renesas Electronics Corporation
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software Foundation,
- *  Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
- */
-
-
-
-
-#ifndef _LINUX_EMXX_H
-#define _LINUX_EMXX_H
-
-
-
-/*---------------------------------------------------------------------------*/
-/*----------------- Default undef */
-#if 0
-#define DEBUG
-#define UDC_DEBUG_DUMP
-#endif
-
-/*----------------- Default define */
-#define	USE_DMA	1
-#define USE_SUSPEND_WAIT	1
-
-
-
-#ifndef TRUE
-#define TRUE	1
-#define FALSE	0
-#endif
-
-
-/*------------ Board dependence(Resource) */
-#define	VBUS_VALUE		GPIO_VBUS
-
-/* below hacked up for staging integration */
-#define GPIO_VBUS 0 /* GPIO_P153 on KZM9D */
-#define INT_VBUS 0 /* IRQ for GPIO_P153 */
-
-/*------------ Board dependence(Wait) */
-
-/* CHATTERING wait time ms */
-#define VBUS_CHATTERING_MDELAY		1
-/* DMA Abort wait time ms */
-#define DMA_DISABLE_TIME		10
-
-
-
-/*------------ Controller dependence */
-#define NUM_ENDPOINTS		14		/* Endpoint */
-#define REG_EP_NUM		15		/* Endpoint Register */
-#define DMA_MAX_COUNT		256		/* DMA Block */
-
-
-
-#define EPC_RST_DISABLE_TIME		1	/* 1 usec */
-#define EPC_DIRPD_DISABLE_TIME		1	/* 1 msec */
-#define EPC_PLL_LOCK_COUNT		1000	/* 1000 */
-#define IN_DATA_EMPTY_COUNT		1000	/* 1000 */
-
-#define CHATGER_TIME			700	/* 700msec */
-#define USB_SUSPEND_TIME		2000	/* 2 sec */
-
-
-/* U2F FLAG */
-#define U2F_ENABLE		1
-#define U2F_DISABLE		0
-
-
-/*------- BIT */
-#define BIT00		0x00000001
-#define BIT01		0x00000002
-#define BIT02		0x00000004
-#define BIT03		0x00000008
-#define BIT04		0x00000010
-#define BIT05		0x00000020
-#define BIT06		0x00000040
-#define BIT07		0x00000080
-#define BIT08		0x00000100
-#define BIT09		0x00000200
-#define BIT10		0x00000400
-#define BIT11		0x00000800
-#define BIT12		0x00001000
-#define BIT13		0x00002000
-#define BIT14		0x00004000
-#define BIT15		0x00008000
-#define BIT16		0x00010000
-#define BIT17		0x00020000
-#define BIT18		0x00040000
-#define BIT19		0x00080000
-#define BIT20		0x00100000
-#define BIT21		0x00200000
-#define BIT22		0x00400000
-#define BIT23		0x00800000
-#define BIT24		0x01000000
-#define BIT25		0x02000000
-#define BIT26		0x04000000
-#define BIT27		0x08000000
-#define BIT28		0x10000000
-#define BIT29		0x20000000
-#define BIT30		0x40000000
-#define BIT31		0x80000000
-
-#define TEST_FORCE_ENABLE		(BIT18+BIT16)
-
-#define INT_SEL				BIT10
-#define CONSTFS				BIT09
-#define SOF_RCV				BIT08
-#define RSUM_IN				BIT07
-#define SUSPEND				BIT06
-#define CONF				BIT05
-#define DEFAULT				BIT04
-#define CONNECTB			BIT03
-#define PUE2				BIT02
-
-#define MAX_TEST_MODE_NUM		0x05
-#define TEST_MODE_SHIFT			16
-
-/*------- (0x0004) USB Status Register */
-#define SPEED_MODE			BIT06
-#define HIGH_SPEED			BIT06
-
-#define CONF				BIT05
-#define DEFAULT				BIT04
-#define USB_RST				BIT03
-#define SPND_OUT			BIT02
-#define RSUM_OUT			BIT01
-
-/*------- (0x0008) USB Address Register */
-#define USB_ADDR			0x007F0000
-#define SOF_STATUS			BIT15
-#define UFRAME				(BIT14+BIT13+BIT12)
-#define FRAME				0x000007FF
-
-#define USB_ADRS_SHIFT			16
-
-/*------- (0x000C) UTMI Characteristic 1 Register */
-#define SQUSET				(BIT07+BIT06+BIT05+BIT04)
-
-#define USB_SQUSET			(BIT06+BIT05+BIT04)
-
-/*------- (0x0010) TEST Control Register */
-#define FORCEHS				BIT02
-#define CS_TESTMODEEN			BIT01
-#define LOOPBACK			BIT00
-
-/*------- (0x0018) Setup Data 0 Register */
-/*------- (0x001C) Setup Data 1 Register */
-
-/*------- (0x0020) USB Interrupt Status Register */
-#define EPn_INT				0x00FFFF00
-#define EP15_INT			BIT23
-#define EP14_INT			BIT22
-#define EP13_INT			BIT21
-#define EP12_INT			BIT20
-#define EP11_INT			BIT19
-#define EP10_INT			BIT18
-#define EP9_INT				BIT17
-#define EP8_INT				BIT16
-#define EP7_INT				BIT15
-#define EP6_INT				BIT14
-#define EP5_INT				BIT13
-#define EP4_INT				BIT12
-#define EP3_INT				BIT11
-#define EP2_INT				BIT10
-#define EP1_INT				BIT09
-#define EP0_INT				BIT08
-#define SPEED_MODE_INT			BIT06
-#define SOF_ERROR_INT			BIT05
-#define SOF_INT				BIT04
-#define USB_RST_INT			BIT03
-#define SPND_INT			BIT02
-#define RSUM_INT			BIT01
-
-#define USB_INT_STA_RW			0x7E
-
-/*------- (0x0024) USB Interrupt Enable Register */
-#define EP15_0_EN			0x00FFFF00
-#define EP15_EN				BIT23
-#define EP14_EN				BIT22
-#define EP13_EN				BIT21
-#define EP12_EN				BIT20
-#define EP11_EN				BIT19
-#define EP10_EN				BIT18
-#define EP9_EN				BIT17
-#define EP8_EN				BIT16
-#define EP7_EN				BIT15
-#define EP6_EN				BIT14
-#define EP5_EN				BIT13
-#define EP4_EN				BIT12
-#define EP3_EN				BIT11
-#define EP2_EN				BIT10
-#define EP1_EN				BIT09
-#define EP0_EN				BIT08
-#define SPEED_MODE_EN			BIT06
-#define SOF_ERROR_EN			BIT05
-#define SOF_EN				BIT04
-#define USB_RST_EN			BIT03
-#define SPND_EN				BIT02
-#define RSUM_EN				BIT01
-
-#define USB_INT_EN_BIT	\
-	(EP0_EN|SPEED_MODE_EN|USB_RST_EN|SPND_EN|RSUM_EN)
-
-/*------- (0x0028) EP0 Control Register */
-#define EP0_STGSEL			BIT18
-#define EP0_OVERSEL			BIT17
-#define EP0_AUTO			BIT16
-#define EP0_PIDCLR			BIT09
-#define EP0_BCLR			BIT08
-#define EP0_DEND			BIT07
-#define EP0_DW				(BIT06+BIT05)
-#define EP0_DW4				0
-#define EP0_DW3				(BIT06+BIT05)
-#define EP0_DW2				BIT06
-#define EP0_DW1				BIT05
-
-#define EP0_INAK_EN			BIT04
-#define EP0_PERR_NAK_CLR		BIT03
-#define EP0_STL				BIT02
-#define EP0_INAK			BIT01
-#define EP0_ONAK			BIT00
-
-/*------- (0x002C) EP0 Status Register */
-#define EP0_PID				BIT18
-#define EP0_PERR_NAK			BIT17
-#define EP0_PERR_NAK_INT		BIT16
-#define EP0_OUT_NAK_INT			BIT15
-#define EP0_OUT_NULL			BIT14
-#define EP0_OUT_FULL			BIT13
-#define EP0_OUT_EMPTY			BIT12
-#define EP0_IN_NAK_INT			BIT11
-#define EP0_IN_DATA			BIT10
-#define EP0_IN_FULL			BIT09
-#define EP0_IN_EMPTY			BIT08
-#define EP0_OUT_NULL_INT		BIT07
-#define EP0_OUT_OR_INT			BIT06
-#define EP0_OUT_INT			BIT05
-#define EP0_IN_INT			BIT04
-#define EP0_STALL_INT			BIT03
-#define STG_END_INT			BIT02
-#define STG_START_INT			BIT01
-#define SETUP_INT			BIT00
-
-#define EP0_STATUS_RW_BIT	(BIT16|BIT15|BIT11|0xFF)
-
-/*------- (0x0030) EP0 Interrupt Enable Register */
-#define EP0_PERR_NAK_EN			BIT16
-#define EP0_OUT_NAK_EN			BIT15
-
-#define EP0_IN_NAK_EN			BIT11
-
-#define EP0_OUT_NULL_EN			BIT07
-#define EP0_OUT_OR_EN			BIT06
-#define EP0_OUT_EN			BIT05
-#define EP0_IN_EN			BIT04
-#define EP0_STALL_EN			BIT03
-#define STG_END_EN			BIT02
-#define STG_START_EN			BIT01
-#define SETUP_EN			BIT00
-
-#define EP0_INT_EN_BIT	\
-	(EP0_OUT_OR_EN|EP0_OUT_EN|EP0_IN_EN|STG_END_EN|SETUP_EN)
-
-/*------- (0x0034) EP0 Length Register */
-#define EP0_LDATA			0x0000007F
-
-/*------- (0x0038) EP0 Read Register */
-/*------- (0x003C) EP0 Write Register */
-
-/*------- (0x0040:) EPn Control Register */
-#define EPn_EN				BIT31
-#define EPn_BUF_TYPE			BIT30
-#define EPn_BUF_SINGLE			BIT30
-
-#define EPn_DIR0			BIT26
-#define EPn_MODE			(BIT25+BIT24)
-#define EPn_BULK			0
-#define EPn_INTERRUPT			BIT24
-#define EPn_ISO				BIT25
-
-#define EPn_OVERSEL			BIT17
-#define EPn_AUTO			BIT16
-
-#define EPn_IPIDCLR			BIT11
-#define EPn_OPIDCLR			BIT10
-#define EPn_BCLR			BIT09
-#define EPn_CBCLR			BIT08
-#define EPn_DEND			BIT07
-#define EPn_DW				(BIT06+BIT05)
-#define EPn_DW4				0
-#define EPn_DW3				(BIT06+BIT05)
-#define EPn_DW2				BIT06
-#define EPn_DW1				BIT05
-
-#define EPn_OSTL_EN			BIT04
-#define EPn_ISTL			BIT03
-#define EPn_OSTL			BIT02
-
-#define EPn_ONAK			BIT00
-
-/*------- (0x0044:) EPn Status Register	*/
-#define EPn_ISO_PIDERR			BIT29		/* R */
-#define EPn_OPID			BIT28		/* R */
-#define EPn_OUT_NOTKN			BIT27		/* R */
-#define EPn_ISO_OR			BIT26		/* R */
-
-#define EPn_ISO_CRC			BIT24		/* R */
-#define EPn_OUT_END_INT			BIT23		/* RW */
-#define EPn_OUT_OR_INT			BIT22		/* RW */
-#define EPn_OUT_NAK_ERR_INT		BIT21		/* RW */
-#define EPn_OUT_STALL_INT		BIT20		/* RW */
-#define EPn_OUT_INT			BIT19		/* RW */
-#define EPn_OUT_NULL_INT		BIT18		/* RW */
-#define EPn_OUT_FULL			BIT17		/* R */
-#define EPn_OUT_EMPTY			BIT16		/* R */
-
-#define EPn_IPID			BIT10		/* R */
-#define EPn_IN_NOTKN			BIT09		/* R */
-#define EPn_ISO_UR			BIT08		/* R */
-#define EPn_IN_END_INT			BIT07		/* RW */
-
-#define EPn_IN_NAK_ERR_INT		BIT05		/* RW */
-#define EPn_IN_STALL_INT		BIT04		/* RW */
-#define EPn_IN_INT			BIT03		/* RW */
-#define EPn_IN_DATA			BIT02		/* R */
-#define EPn_IN_FULL			BIT01		/* R */
-#define EPn_IN_EMPTY			BIT00		/* R */
-
-#define EPn_INT_EN	\
-	(EPn_OUT_END_INT|EPn_OUT_INT|EPn_IN_END_INT|EPn_IN_INT)
-
-/*------- (0x0048:) EPn Interrupt Enable Register */
-#define EPn_OUT_END_EN			BIT23		/* RW */
-#define EPn_OUT_OR_EN			BIT22		/* RW */
-#define EPn_OUT_NAK_ERR_EN		BIT21		/* RW */
-#define EPn_OUT_STALL_EN		BIT20		/* RW */
-#define EPn_OUT_EN			BIT19		/* RW */
-#define EPn_OUT_NULL_EN			BIT18		/* RW */
-
-#define EPn_IN_END_EN			BIT07		/* RW */
-
-#define EPn_IN_NAK_ERR_EN		BIT05		/* RW */
-#define EPn_IN_STALL_EN			BIT04		/* RW */
-#define EPn_IN_EN			BIT03		/* RW */
-
-/*------- (0x004C:) EPn Interrupt Enable Register */
-#define EPn_STOP_MODE			BIT11
-#define EPn_DEND_SET			BIT10
-#define EPn_BURST_SET			BIT09
-#define EPn_STOP_SET			BIT08
-
-#define EPn_DMA_EN			BIT04
-
-#define EPn_DMAMODE0			BIT00
-
-/*------- (0x0050:) EPn MaxPacket & BaseAddress Register */
-#define EPn_BASEAD			0x1FFF0000
-#define EPn_MPKT			0x000007FF
-
-/*------- (0x0054:) EPn Length & DMA Count Register */
-#define EPn_DMACNT			0x01FF0000
-#define EPn_LDATA			0x000007FF
-
-/*------- (0x0058:) EPn Read Register */
-/*------- (0x005C:) EPn Write Register */
-
-/*------- (0x1000) AHBSCTR Register */
-#define WAIT_MODE			BIT00
-
-/*------- (0x1004) AHBMCTR Register */
-#define ARBITER_CTR			BIT31		/* RW */
-#define MCYCLE_RST			BIT12		/* RW */
-
-#define ENDIAN_CTR			(BIT09+BIT08)	/* RW */
-#define ENDIAN_BYTE_SWAP		BIT09
-#define ENDIAN_HALF_WORD_SWAP		ENDIAN_CTR
-
-#define HBUSREQ_MODE			BIT05		/* RW */
-#define HTRANS_MODE			BIT04		/* RW */
-
-#define WBURST_TYPE			BIT02		/* RW */
-#define BURST_TYPE			(BIT01+BIT00)	/* RW */
-#define BURST_MAX_16			0
-#define BURST_MAX_8			BIT00
-#define BURST_MAX_4			BIT01
-#define BURST_SINGLE			BURST_TYPE
-
-/*------- (0x1008) AHBBINT Register */
-#define DMA_ENDINT			0xFFFE0000	/* RW */
-
-#define AHB_VBUS_INT			BIT13		/* RW */
-
-#define MBUS_ERRINT			BIT06		/* RW */
-
-#define SBUS_ERRINT0			BIT04		/* RW */
-#define ERR_MASTER			0x0000000F	/* R */
-
-/*------- (0x100C) AHBBINTEN Register */
-#define DMA_ENDINTEN			0xFFFE0000	/* RW */
-
-#define VBUS_INTEN			BIT13		/* RW */
-
-#define MBUS_ERRINTEN			BIT06		/* RW */
-
-#define SBUS_ERRINT0EN			BIT04		/* RW */
-
-/*------- (0x1010) EPCTR Register */
-#define DIRPD				BIT12		/* RW */
-
-#define VBUS_LEVEL			BIT08		/* R */
-
-#define PLL_RESUME			BIT05		/* RW */
-#define PLL_LOCK			BIT04		/* R */
-
-#define EPC_RST				BIT00		/* RW */
-
-/*------- (0x1014) USBF_EPTEST Register */
-#define LINESTATE			(BIT09+BIT08)	/* R */
-#define DM_LEVEL			BIT09		/* R */
-#define DP_LEVEL			BIT08		/* R */
-
-#define PHY_TST				BIT01		/* RW */
-#define PHY_TSTCLK			BIT00		/* RW */
-
-/*------- (0x1020) USBSSVER Register */
-#define AHBB_VER			0x00FF0000	/* R */
-#define EPC_VER				0x0000FF00	/* R */
-#define SS_VER				0x000000FF	/* R */
-
-/*------- (0x1024) USBSSCONF Register */
-#define EP_AVAILABLE			0xFFFF0000	/* R */
-#define DMA_AVAILABLE			0x0000FFFF	/* R */
-
-/*------- (0x1110:) EPnDCR1 Register */
-#define DCR1_EPn_DMACNT			0x00FF0000	/* RW */
-
-#define DCR1_EPn_DIR0			BIT01		/* RW */
-#define DCR1_EPn_REQEN			BIT00		/* RW */
-
-/*------- (0x1114:) EPnDCR2 Register */
-#define DCR2_EPn_LMPKT			0x07FF0000	/* RW */
-
-#define DCR2_EPn_MPKT			0x000007FF	/* RW */
-
-/*------- (0x1118:) EPnTADR Register */
-#define EPn_TADR			0xFFFFFFFF	/* RW */
-
-
-
-/*===========================================================================*/
-/* Struct */
-/*------- ep_regs */
-struct ep_regs {
-	u32 EP_CONTROL;			/* EP Control */
-	u32 EP_STATUS;			/* EP Status */
-	u32 EP_INT_ENA;			/* EP Interrupt Enable */
-	u32 EP_DMA_CTRL;		/* EP DMA Control */
-	u32 EP_PCKT_ADRS;		/* EP Maxpacket & BaseAddress */
-	u32 EP_LEN_DCNT;		/* EP Length & DMA count */
-	u32 EP_READ;			/* EP Read */
-	u32 EP_WRITE;			/* EP Write */
-};
-
-/*------- ep_dcr */
-struct ep_dcr {
-	u32 EP_DCR1;			/* EP_DCR1 */
-	u32 EP_DCR2;			/* EP_DCR2 */
-	u32 EP_TADR;			/* EP_TADR */
-	u32 Reserved;			/* Reserved */
-};
-
-/*------- Function Registers */
-struct fc_regs {
-	u32 USB_CONTROL;		/* (0x0000) USB Control */
-	u32 USB_STATUS;			/* (0x0004) USB Status */
-	u32 USB_ADDRESS;		/* (0x0008) USB Address */
-	u32 UTMI_CHARACTER_1;		/* (0x000C) UTMI Setting */
-	u32 TEST_CONTROL;		/* (0x0010) TEST Control */
-	u32 Reserved_14;		/* (0x0014) Reserved */
-	u32 SETUP_DATA0;		/* (0x0018) Setup Data0 */
-	u32 SETUP_DATA1;		/* (0x001C) Setup Data1 */
-	u32 USB_INT_STA;		/* (0x0020) USB Interrupt Status */
-	u32 USB_INT_ENA;		/* (0x0024) USB Interrupt Enable */
-	u32 EP0_CONTROL;		/* (0x0028) EP0 Control */
-	u32 EP0_STATUS;			/* (0x002C) EP0 Status */
-	u32 EP0_INT_ENA;		/* (0x0030) EP0 Interrupt Enable */
-	u32 EP0_LENGTH;			/* (0x0034) EP0 Length */
-	u32 EP0_READ;			/* (0x0038) EP0 Read */
-	u32 EP0_WRITE;			/* (0x003C) EP0 Write */
-
-	struct ep_regs EP_REGS[REG_EP_NUM];	/* Endpoint Register */
-
-	u8 Reserved220[0x1000-0x220];	/* (0x0220:0x0FFF) Reserved */
-
-	u32 AHBSCTR;			/* (0x1000) AHBSCTR */
-	u32 AHBMCTR;			/* (0x1004) AHBMCTR */
-	u32 AHBBINT;			/* (0x1008) AHBBINT */
-	u32 AHBBINTEN;			/* (0x100C) AHBBINTEN */
-	u32 EPCTR;			/* (0x1010) EPCTR */
-	u32 USBF_EPTEST;		/* (0x1014) USBF_EPTEST */
-
-	u8 Reserved1018[0x20-0x18];	/* (0x1018:0x101F) Reserved */
-
-	u32 USBSSVER;			/* (0x1020) USBSSVER */
-	u32 USBSSCONF;			/* (0x1024) USBSSCONF */
-
-	u8 Reserved1028[0x110-0x28];	/* (0x1028:0x110F) Reserved */
-
-	struct ep_dcr EP_DCR[REG_EP_NUM];	/* */
-
-	u8 Reserved1200[0x1000-0x200];	/* Reserved */
-} __aligned(32);
-
-
-
-
-
-
-
-
-#define EP0_PACKETSIZE			64
-#define EP_PACKETSIZE			1024
-
-/* EPn RAM SIZE */
-#define D_RAM_SIZE_CTRL			64
-
-/* EPn Bulk Endpoint Max Packet Size */
-#define D_FS_RAM_SIZE_BULK		64
-#define D_HS_RAM_SIZE_BULK		512
-
-
-struct nbu2ss_udc;
-
-
-enum ep0_state {
-	EP0_IDLE,
-	EP0_IN_DATA_PHASE,
-	EP0_OUT_DATA_PHASE,
-	EP0_IN_STATUS_PHASE,
-	EP0_OUT_STATUS_PAHSE,
-	EP0_END_XFER,
-	EP0_SUSPEND,
-	EP0_STALL,
-};
-
-struct nbu2ss_req {
-	struct usb_request		req;
-	struct list_head		queue;
-
-	u32			div_len;
-	bool		dma_flag;
-	bool		zero;
-
-	bool		unaligned;
-
-	unsigned			mapped:1;
-};
-
-struct nbu2ss_ep {
-	struct usb_ep			ep;
-	struct list_head		queue;
-
-	struct nbu2ss_udc		*udc;
-
-	const struct usb_endpoint_descriptor *desc;
-
-	u8		epnum;
-	u8		direct;
-	u8		ep_type;
-
-	unsigned		wedged:1;
-	unsigned		halted:1;
-	unsigned		stalled:1;
-
-	u8		*virt_buf;
-	dma_addr_t	phys_buf;
-};
-
-
-struct nbu2ss_udc {
-	struct usb_gadget gadget;
-	struct usb_gadget_driver *driver;
-	struct platform_device *pdev;
-	struct device *dev;
-	spinlock_t lock;
-	struct completion		*pdone;
-
-	enum ep0_state			ep0state;
-	enum usb_device_state	devstate;
-	struct usb_ctrlrequest	ctrl;
-	struct nbu2ss_req		ep0_req;
-	u8		ep0_buf[EP0_PACKETSIZE];
-
-	struct nbu2ss_ep	ep[NUM_ENDPOINTS];
-
-	unsigned		softconnect:1;
-	unsigned		vbus_active:1;
-	unsigned		linux_suspended:1;
-	unsigned		linux_resume:1;
-	unsigned		usb_suspended:1;
-	unsigned		remote_wakeup:1;
-	unsigned		udc_enabled:1;
-
-	unsigned		mA;
-
-	u32		curr_config;	/* Current Configuration Number */
-
-	struct fc_regs		*p_regs;
-};
-
-/* USB register access structure */
-union usb_reg_access {
-	struct {
-		unsigned char	DATA[4];
-	} byte;
-	unsigned int		dw;
-};
-
-/*-------------------------------------------------------------------------*/
-
-#endif  /* _LINUX_EMXX_H */
diff --git a/drivers/staging/fbtft/Kconfig b/drivers/staging/fbtft/Kconfig
index d473010fa474..c2655768209a 100644
--- a/drivers/staging/fbtft/Kconfig
+++ b/drivers/staging/fbtft/Kconfig
@@ -1,188 +1,173 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig FB_TFT
 	tristate "Support for small TFT LCD display modules"
 	depends on FB && SPI
+	depends on FB_DEVICE
+	depends on BACKLIGHT_CLASS_DEVICE
 	depends on GPIOLIB || COMPILE_TEST
-	select FB_SYS_FILLRECT
-	select FB_SYS_COPYAREA
-	select FB_SYS_IMAGEBLIT
-	select FB_SYS_FOPS
-	select FB_DEFERRED_IO
 	select FB_BACKLIGHT
+	select FB_SYSMEM_HELPERS_DEFERRED
+
+if FB_TFT
 
 config FB_TFT_AGM1264K_FL
 	tristate "FB driver for the AGM1264K-FL LCD display"
-	depends on FB_TFT
 	help
 	  Framebuffer support for the AGM1264K-FL LCD display (two Samsung KS0108 compatible chips)
 
 config FB_TFT_BD663474
 	tristate "FB driver for the BD663474 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for BD663474
 
 config FB_TFT_HX8340BN
 	tristate "FB driver for the HX8340BN LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for HX8340BN
 
 config FB_TFT_HX8347D
 	tristate "FB driver for the HX8347D LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for HX8347D
 
 config FB_TFT_HX8353D
 	tristate "FB driver for the HX8353D LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for HX8353D
 
 config FB_TFT_HX8357D
 	tristate "FB driver for the HX8357D LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for HX8357D
 
 config FB_TFT_ILI9163
 	tristate "FB driver for the ILI9163 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ILI9163
 
 config FB_TFT_ILI9320
 	tristate "FB driver for the ILI9320 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ILI9320
 
 config FB_TFT_ILI9325
 	tristate "FB driver for the ILI9325 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ILI9325
 
 config FB_TFT_ILI9340
 	tristate "FB driver for the ILI9340 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ILI9340
 
 config FB_TFT_ILI9341
 	tristate "FB driver for the ILI9341 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ILI9341
 
 config FB_TFT_ILI9481
 	tristate "FB driver for the ILI9481 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ILI9481
 
 config FB_TFT_ILI9486
 	tristate "FB driver for the ILI9486 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ILI9486
 
 config FB_TFT_PCD8544
 	tristate "FB driver for the PCD8544 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for PCD8544
 
 config FB_TFT_RA8875
-        tristate "FB driver for the RA8875 LCD Controller"
-        depends on FB_TFT
+	tristate "FB driver for the RA8875 LCD Controller"
 	help
 	  Generic Framebuffer support for RA8875
 
 config FB_TFT_S6D02A1
 	tristate "FB driver for the S6D02A1 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for S6D02A1
 
 config FB_TFT_S6D1121
 	tristate "FB driver for the S6D1211 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for S6D1121
 
+config FB_TFT_SEPS525
+	tristate "FB driver for the SEPS525 LCD Controller"
+	help
+	  Generic Framebuffer support for SEPS525
+	  Say Y if you have such a display that utilizes this controller.
+
+config FB_TFT_SH1106
+	tristate "FB driver for the SH1106 OLED Controller"
+	help
+	  Framebuffer support for SH1106
+
 config FB_TFT_SSD1289
 	tristate "FB driver for the SSD1289 LCD Controller"
-	depends on FB_TFT
 	help
 	  Framebuffer support for SSD1289
 
+config FB_TFT_SSD1305
+	tristate "FB driver for the SSD1305 OLED Controller"
+	help
+	  Framebuffer support for SSD1305
+
 config FB_TFT_SSD1306
 	tristate "FB driver for the SSD1306 OLED Controller"
-	depends on FB_TFT
 	help
 	  Framebuffer support for SSD1306
 
 config FB_TFT_SSD1331
 	tristate "FB driver for the SSD1331 LCD Controller"
-	depends on FB_TFT
 	help
 	  Framebuffer support for SSD1331
 
 config FB_TFT_SSD1351
 	tristate "FB driver for the SSD1351 LCD Controller"
-	depends on FB_TFT
 	help
 	  Framebuffer support for SSD1351
 
 config FB_TFT_ST7735R
 	tristate "FB driver for the ST7735R LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for ST7735R
 
+config FB_TFT_ST7789V
+	tristate "FB driver for the ST7789V LCD Controller"
+	help
+	  This enables generic framebuffer support for the Sitronix ST7789V
+	  display controller. The controller is intended for small color
+	  displays with a resolution of up to 320x240 pixels.
+
+	  Say Y if you have such a display that utilizes this controller.
+
 config FB_TFT_TINYLCD
 	tristate "FB driver for tinylcd.com display"
-	depends on FB_TFT
 	help
 	  Custom Framebuffer support for tinylcd.com display
 
 config FB_TFT_TLS8204
 	tristate "FB driver for the TLS8204 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for TLS8204
 
 config FB_TFT_UC1611
 	tristate "FB driver for the UC1611 LCD controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for UC1611
 
 config FB_TFT_UC1701
 	tristate "FB driver for the UC1701 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for UC1701
 
 config FB_TFT_UPD161704
 	tristate "FB driver for the uPD161704 LCD Controller"
-	depends on FB_TFT
 	help
 	  Generic Framebuffer support for uPD161704
 
-config FB_TFT_WATTEROTT
-	tristate "FB driver for the WATTEROTT LCD Controller"
-	depends on FB_TFT
-	help
-	  Generic Framebuffer support for WATTEROTT
-
-config FB_FLEX
-	tristate "Generic FB driver for TFT LCD displays"
-	depends on FB_TFT
-	help
-	  Generic Framebuffer support for TFT LCD displays.
-
-config FB_TFT_FBTFT_DEVICE
-	tristate "Module to for adding FBTFT devices"
-	depends on FB_TFT
+endif
diff --git a/drivers/staging/fbtft/Makefile b/drivers/staging/fbtft/Makefile
index b26efdc87775..e9cdf0f0a7da 100644
--- a/drivers/staging/fbtft/Makefile
+++ b/drivers/staging/fbtft/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Core module
 obj-$(CONFIG_FB_TFT)             += fbtft.o
 fbtft-y                          += fbtft-core.o fbtft-sysfs.o fbtft-bus.o fbtft-io.o
@@ -20,18 +21,18 @@ obj-$(CONFIG_FB_TFT_PCD8544)     += fb_pcd8544.o
 obj-$(CONFIG_FB_TFT_RA8875)      += fb_ra8875.o
 obj-$(CONFIG_FB_TFT_S6D02A1)     += fb_s6d02a1.o
 obj-$(CONFIG_FB_TFT_S6D1121)     += fb_s6d1121.o
+obj-$(CONFIG_FB_TFT_SEPS525)     += fb_seps525.o
+obj-$(CONFIG_FB_TFT_SH1106)      += fb_sh1106.o
 obj-$(CONFIG_FB_TFT_SSD1289)     += fb_ssd1289.o
+obj-$(CONFIG_FB_TFT_SSD1305)     += fb_ssd1305.o
 obj-$(CONFIG_FB_TFT_SSD1306)     += fb_ssd1306.o
+obj-$(CONFIG_FB_TFT_SSD1305)     += fb_ssd1325.o
 obj-$(CONFIG_FB_TFT_SSD1331)     += fb_ssd1331.o
 obj-$(CONFIG_FB_TFT_SSD1351)     += fb_ssd1351.o
 obj-$(CONFIG_FB_TFT_ST7735R)     += fb_st7735r.o
+obj-$(CONFIG_FB_TFT_ST7789V)     += fb_st7789v.o
 obj-$(CONFIG_FB_TFT_TINYLCD)     += fb_tinylcd.o
 obj-$(CONFIG_FB_TFT_TLS8204)     += fb_tls8204.o
 obj-$(CONFIG_FB_TFT_UC1611)      += fb_uc1611.o
 obj-$(CONFIG_FB_TFT_UC1701)      += fb_uc1701.o
 obj-$(CONFIG_FB_TFT_UPD161704)   += fb_upd161704.o
-obj-$(CONFIG_FB_TFT_WATTEROTT)   += fb_watterott.o
-obj-$(CONFIG_FB_FLEX)            += flexfb.o
-
-# Device modules
-obj-$(CONFIG_FB_TFT_FBTFT_DEVICE) += fbtft_device.o
diff --git a/drivers/staging/fbtft/TODO b/drivers/staging/fbtft/TODO
new file mode 100644
index 000000000000..e72a08bf221c
--- /dev/null
+++ b/drivers/staging/fbtft/TODO
@@ -0,0 +1,3 @@
+* convert all these over to drm_simple_display_pipe and submit for inclusion
+  into the DRM subsystem under drivers/gpu/drm - fbdev doesn't take any new
+  drivers anymore.
diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index 94dd49ce18de..207d578547cd 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -1,23 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for Two KS0108 LCD controllers in AGM1264K-FL display
  *
  * Copyright (C) 2014 ololoshka2871
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
 
@@ -41,8 +32,7 @@
 #define CS0			gpio.aux[0]
 #define CS1			gpio.aux[1]
 
-
-/* diffusing error (�Floyd-Steinberg�) */
+/* diffusing error (Floyd-Steinberg) */
 #define DIFFUSING_MATRIX_WIDTH	2
 #define DIFFUSING_MATRIX_HEIGHT	2
 
@@ -75,8 +65,6 @@ static int init_display(struct fbtft_par *par)
 {
 	u8 i;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	for (i = 0; i < 2; ++i) {
@@ -89,19 +77,6 @@ static int init_display(struct fbtft_par *par)
 	return 0;
 }
 
-static void reset(struct fbtft_par *par)
-{
-	if (par->gpio.reset == -1)
-		return;
-
-	dev_dbg(par->info->device, "%s()\n", __func__);
-
-	gpio_set_value(par->gpio.reset, 0);
-	udelay(20);
-	gpio_set_value(par->gpio.reset, 1);
-	mdelay(120);
-}
-
 /* Check if all necessary GPIOS defined */
 static int verify_gpios(struct fbtft_par *par)
 {
@@ -110,30 +85,30 @@ static int verify_gpios(struct fbtft_par *par)
 	dev_dbg(par->info->device,
 		"%s()\n", __func__);
 
-	if (par->EPIN < 0) {
+	if (!par->EPIN) {
 		dev_err(par->info->device,
 			"Missing info about 'wr' (aka E) gpio. Aborting.\n");
 		return -EINVAL;
 	}
 	for (i = 0; i < 8; ++i) {
-		if (par->gpio.db[i] < 0) {
+		if (!par->gpio.db[i]) {
 			dev_err(par->info->device,
 				"Missing info about 'db[%i]' gpio. Aborting.\n",
 				i);
 			return -EINVAL;
 		}
 	}
-	if (par->CS0 < 0) {
+	if (!par->CS0) {
 		dev_err(par->info->device,
 			"Missing info about 'cs0' gpio. Aborting.\n");
 		return -EINVAL;
 	}
-	if (par->CS1 < 0) {
+	if (!par->CS1) {
 		dev_err(par->info->device,
 			"Missing info about 'cs1' gpio. Aborting.\n");
 		return -EINVAL;
 	}
-	if (par->RW < 0) {
+	if (!par->RW) {
 		dev_err(par->info->device,
 			"Missing info about 'rw' gpio. Aborting.\n");
 		return -EINVAL;
@@ -151,22 +126,22 @@ request_gpios_match(struct fbtft_par *par, const struct fbtft_gpio *gpio)
 	if (strcasecmp(gpio->name, "wr") == 0) {
 		/* left ks0108 E pin */
 		par->EPIN = gpio->gpio;
-		return GPIOF_OUT_INIT_LOW;
+		return GPIOD_OUT_LOW;
 	} else if (strcasecmp(gpio->name, "cs0") == 0) {
 		/* left ks0108 controller pin */
 		par->CS0 = gpio->gpio;
-		return GPIOF_OUT_INIT_HIGH;
+		return GPIOD_OUT_HIGH;
 	} else if (strcasecmp(gpio->name, "cs1") == 0) {
 		/* right ks0108 controller pin */
 		par->CS1 = gpio->gpio;
-		return GPIOF_OUT_INIT_HIGH;
+		return GPIOD_OUT_HIGH;
 	}
 
 	/* if write (rw = 0) e(1->0) perform write */
 	/* if read (rw = 1) e(0->1) set data on D0-7*/
 	else if (strcasecmp(gpio->name, "rw") == 0) {
 		par->RW = gpio->gpio;
-		return GPIOF_OUT_INIT_LOW;
+		return GPIOD_OUT_LOW;
 	}
 
 	return FBTFT_GPIO_NO_MATCH;
@@ -180,7 +155,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 {
 	va_list args;
 	int i, ret;
-	u8 *buf = (u8 *)par->buf;
+	u8 *buf = par->buf;
 
 	if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) {
 		va_start(args, len);
@@ -188,9 +163,9 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 			buf[i] = (u8)va_arg(args, unsigned int);
 
 		va_end(args);
-		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par,
-			par->info->device, u8, buf, len, "%s: ", __func__);
-	}
+		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device,
+				  u8, buf, len, "%s: ", __func__);
+}
 
 	va_start(args, len);
 
@@ -206,15 +181,15 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 	/* select chip */
 	if (*buf) {
 		/* cs1 */
-		gpio_set_value(par->CS0, 1);
-		gpio_set_value(par->CS1, 0);
+		gpiod_set_value(par->CS0, 0);
+		gpiod_set_value(par->CS1, 1);
 	} else {
 		/* cs0 */
-		gpio_set_value(par->CS0, 0);
-		gpio_set_value(par->CS1, 1);
+		gpiod_set_value(par->CS0, 1);
+		gpiod_set_value(par->CS1, 0);
 	}
 
-	gpio_set_value(par->RS, 0); /* RS->0 (command mode) */
+	gpiod_set_value(par->RS, 0); /* RS->0 (command mode) */
 	len--;
 
 	if (len) {
@@ -245,15 +220,11 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	addr_win.ys_page = ys / 8;
 	addr_win.xe = xe;
 	addr_win.ye_page = ye / 8;
-
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys_page=%d, xe=%d, ye_page=%d)\n", __func__,
-		addr_win.xs, addr_win.ys_page, addr_win.xe, addr_win.ye_page);
 }
 
 static void
 construct_line_bitmap(struct fbtft_par *par, u8 *dest, signed short *src,
-						int xs, int xe, int y)
+		      int xs, int xe, int y)
 {
 	int x, i;
 
@@ -271,22 +242,53 @@ construct_line_bitmap(struct fbtft_par *par, u8 *dest, signed short *src,
 	}
 }
 
+static void iterate_diffusion_matrix(u32 xres, u32 yres, int x,
+				     int y, signed short *convert_buf,
+				     signed short pixel, signed short error)
+{
+	u16 i, j;
+
+	/* diffusion matrix row */
+	for (i = 0; i < DIFFUSING_MATRIX_WIDTH; ++i)
+		/* diffusion matrix column */
+		for (j = 0; j < DIFFUSING_MATRIX_HEIGHT; ++j) {
+			signed short *write_pos;
+			signed char coeff;
+
+			/* skip pixels out of zone */
+			if (x + i < 0 || x + i >= xres || y + j >= yres)
+				continue;
+			write_pos = &convert_buf[(y + j) * xres + x + i];
+			coeff = diffusing_matrix[i][j];
+			if (-1 == coeff) {
+				/* pixel itself */
+				*write_pos = pixel;
+			} else {
+				signed short p = *write_pos + error * coeff;
+
+				if (p > WHITE)
+					p = WHITE;
+				if (p < BLACK)
+					p = BLACK;
+				*write_pos = p;
+			}
+		}
+}
+
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	u8 *buf = par->txbuf.buf;
 	int x, y;
 	int ret = 0;
 
 	/* buffer to convert RGB565 -> grayscale16 -> Dithered image 1bpp */
-	signed short *convert_buf = kmalloc(par->info->var.xres *
-		par->info->var.yres * sizeof(signed short), GFP_NOIO);
+	signed short *convert_buf = kmalloc_array(par->info->var.xres *
+		par->info->var.yres, sizeof(signed short), GFP_NOIO);
 
 	if (!convert_buf)
 		return -ENOMEM;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
 	/* converting to grayscale16 */
 	for (x = 0; x < par->info->var.xres; ++x)
 		for (y = 0; y < par->info->var.yres; ++y) {
@@ -312,7 +314,6 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 			signed short error_b = pixel - BLACK;
 			signed short error_w = pixel - WHITE;
 			signed short error;
-			u16 i, j;
 
 			/* what color close? */
 			if (abs(error_b) >= abs(error_w)) {
@@ -327,55 +328,30 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 
 			error /= 8;
 
-			/* diffusion matrix row */
-			for (i = 0; i < DIFFUSING_MATRIX_WIDTH; ++i)
-				/* diffusion matrix column */
-				for (j = 0; j < DIFFUSING_MATRIX_HEIGHT; ++j) {
-					signed short *write_pos;
-					signed char coeff;
-
-					/* skip pixels out of zone */
-					if (x + i < 0 ||
-						x + i >= par->info->var.xres
-						|| y + j >= par->info->var.yres)
-						continue;
-					write_pos = &convert_buf[
-						(y + j) * par->info->var.xres +
-						x + i];
-					coeff = diffusing_matrix[i][j];
-					if (coeff == -1)
-						/* pixel itself */
-						*write_pos = pixel;
-					else {
-						signed short p = *write_pos +
-							error * coeff;
-
-						if (p > WHITE)
-							p = WHITE;
-						if (p < BLACK)
-							p = BLACK;
-						*write_pos = p;
-					}
-				}
+			iterate_diffusion_matrix(par->info->var.xres,
+						 par->info->var.yres,
+						 x, y, convert_buf,
+						 pixel, error);
 		}
 
-	 /* 1 string = 2 pages */
-	 for (y = addr_win.ys_page; y <= addr_win.ye_page; ++y) {
+	/* 1 string = 2 pages */
+	for (y = addr_win.ys_page; y <= addr_win.ye_page; ++y) {
 		/* left half of display */
 		if (addr_win.xs < par->info->var.xres / 2) {
 			construct_line_bitmap(par, buf, convert_buf,
-				addr_win.xs, par->info->var.xres / 2, y);
+					      addr_win.xs,
+					      par->info->var.xres / 2, y);
 
 			len = par->info->var.xres / 2 - addr_win.xs;
 
 			/* select left side (sc0)
 			 * set addr
 			 */
-			write_reg(par, 0x00, (1 << 6) | (u8)addr_win.xs);
+			write_reg(par, 0x00, BIT(6) | (u8)addr_win.xs);
 			write_reg(par, 0x00, (0x17 << 3) | (u8)y);
 
 			/* write bitmap */
-			gpio_set_value(par->RS, 1); /* RS->1 (data mode) */
+			gpiod_set_value(par->RS, 1); /* RS->1 (data mode) */
 			ret = par->fbtftops.write(par, buf, len);
 			if (ret < 0)
 				dev_err(par->info->device,
@@ -385,19 +361,20 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 		/* right half of display */
 		if (addr_win.xe >= par->info->var.xres / 2) {
 			construct_line_bitmap(par, buf,
-				convert_buf, par->info->var.xres / 2,
-				addr_win.xe + 1, y);
+					      convert_buf,
+					      par->info->var.xres / 2,
+					      addr_win.xe + 1, y);
 
 			len = addr_win.xe + 1 - par->info->var.xres / 2;
 
 			/* select right side (sc1)
 			 * set addr
 			 */
-			write_reg(par, 0x01, 1 << 6);
+			write_reg(par, 0x01, BIT(6));
 			write_reg(par, 0x01, (0x17 << 3) | (u8)y);
 
 			/* write bitmap */
-			gpio_set_value(par->RS, 1); /* RS->1 (data mode) */
+			gpiod_set_value(par->RS, 1); /* RS->1 (data mode) */
 			par->fbtftops.write(par, buf, len);
 			if (ret < 0)
 				dev_err(par->info->device,
@@ -407,8 +384,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	}
 	kfree(convert_buf);
 
-	gpio_set_value(par->CS0, 1);
-	gpio_set_value(par->CS1, 1);
+	gpiod_set_value(par->CS0, 0);
+	gpiod_set_value(par->CS1, 0);
 
 	return ret;
 }
@@ -416,24 +393,23 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 static int write(struct fbtft_par *par, void *buf, size_t len)
 {
 	fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len,
-		"%s(len=%d): ", __func__, len);
-
-	gpio_set_value(par->RW, 0); /* set write mode */
+			  "%s(len=%zu): ", __func__, len);
 
+	gpiod_set_value(par->RW, 0); /* set write mode */
 
 	while (len--) {
 		u8 i, data;
 
-		data = *(u8 *) buf++;
+		data = *(u8 *)buf++;
 
 		/* set data bus */
 		for (i = 0; i < 8; ++i)
-			gpio_set_value(par->gpio.db[i], data & (1 << i));
+			gpiod_set_value(par->gpio.db[i], data & (1 << i));
 		/* set E */
-		gpio_set_value(par->EPIN, 1);
+		gpiod_set_value(par->EPIN, 0);
 		udelay(5);
 		/* unset E - write */
-		gpio_set_value(par->EPIN, 0);
+		gpiod_set_value(par->EPIN, 1);
 		udelay(1);
 	}
 
@@ -450,12 +426,12 @@ static struct fbtft_display display = {
 		.set_addr_win = set_addr_win,
 		.verify_gpios = verify_gpios,
 		.request_gpios_match = request_gpios_match,
-		.reset = reset,
 		.write = write,
 		.write_register = write_reg8_bus8,
 		.write_vmem = write_vmem,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "displaytronic,fb_agm1264k-fl", &display);
 
 MODULE_ALIAS("platform:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_bd663474.c b/drivers/staging/fbtft/fb_bd663474.c
index 17a2162a7e5b..1629c2c440a9 100644
--- a/drivers/staging/fbtft/fb_bd663474.c
+++ b/drivers/staging/fbtft/fb_bd663474.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the uPD161704 LCD Controller
  *
@@ -6,26 +7,11 @@
  * Based on fb_ili9325.c by Noralf Tronnes
  * Based on ili9325.c by Jeroen Domburg
  * Init code from UTFT library by Henning Karlsen
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/delay.h>
 
 #include "fbtft.h"
@@ -37,11 +23,6 @@
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
-
 	par->fbtftops.reset(par);
 
 	/* Initialization sequence from Lib_UTFT */
@@ -122,8 +103,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
 	switch (par->info->var.rotate) {
 	/* R200h = Horizontal GRAM Start Address */
 	/* R201h = Vertical GRAM Start Address */
@@ -149,8 +128,6 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	/* AM: GRAM update direction */
 	case 0:
@@ -181,6 +158,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "hitachi,bd663474", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_hx8340bn.c b/drivers/staging/fbtft/fb_hx8340bn.c
index 54528aa0c0ef..2fd7b87ea0ce 100644
--- a/drivers/staging/fbtft/fb_hx8340bn.c
+++ b/drivers/staging/fbtft/fb_hx8340bn.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8340BN LCD Controller
  *
@@ -7,20 +8,6 @@
  * This is done by transferring eight 9-bit words in 9 bytes.
  *
  * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
@@ -29,6 +16,7 @@
 #include <linux/vmalloc.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -39,68 +27,80 @@
 #define DEFAULT_GAMMA	"1 3 0E 5 0 2 09 0 6 1 7 1 0 2 2\n" \
 			"3 3 17 8 4 7 05 7 6 0 3 1 6 0 0 "
 
-
 static bool emulate;
-module_param(emulate, bool, 0);
+module_param(emulate, bool, 0000);
 MODULE_PARM_DESC(emulate, "Force emulation in 9-bit mode");
 
-
 static int init_display(struct fbtft_par *par)
 {
 	par->fbtftops.reset(par);
 
 	/* BTL221722-276L startup sequence, from datasheet */
 
-	/* SETEXTCOM: Set extended command set (C1h)
-	   This command is used to set extended command set access enable.
-	   Enable: After command (C1h), must write: ffh,83h,40h */
+	/*
+	 * SETEXTCOM: Set extended command set (C1h)
+	 * This command is used to set extended command set access enable.
+	 * Enable: After command (C1h), must write: ffh,83h,40h
+	 */
 	write_reg(par, 0xC1, 0xFF, 0x83, 0x40);
 
-	/* Sleep out
-	   This command turns off sleep mode.
-	   In this mode the DC/DC converter is enabled, Internal oscillator
-	   is started, and panel scanning is started. */
+	/*
+	 * Sleep out
+	 * This command turns off sleep mode.
+	 * In this mode the DC/DC converter is enabled, Internal oscillator
+	 * is started, and panel scanning is started.
+	 */
 	write_reg(par, 0x11);
 	mdelay(150);
 
 	/* Undoc'd register? */
 	write_reg(par, 0xCA, 0x70, 0x00, 0xD9);
 
-	/* SETOSC: Set Internal Oscillator (B0h)
-	   This command is used to set internal oscillator related settings */
-	/*	OSC_EN: Enable internal oscillator */
-	/*	Internal oscillator frequency: 125% x 2.52MHz */
+	/*
+	 * SETOSC: Set Internal Oscillator (B0h)
+	 * This command is used to set internal oscillator related settings
+	 *	OSC_EN: Enable internal oscillator
+	 *	Internal oscillator frequency: 125% x 2.52MHz
+	 */
 	write_reg(par, 0xB0, 0x01, 0x11);
 
 	/* Drive ability setting */
 	write_reg(par, 0xC9, 0x90, 0x49, 0x10, 0x28, 0x28, 0x10, 0x00, 0x06);
 	mdelay(20);
 
-	/* SETPWCTR5: Set Power Control 5(B5h)
-	   This command is used to set VCOM Low and VCOM High Voltage */
-	/* VCOMH 0110101 :  3.925 */
-	/* VCOML 0100000 : -1.700 */
-	/* 45h=69  VCOMH: "VMH" + 5d   VCOML: "VMH" + 5d */
+	/*
+	 * SETPWCTR5: Set Power Control 5(B5h)
+	 * This command is used to set VCOM Low and VCOM High Voltage
+	 * VCOMH 0110101 :  3.925
+	 * VCOML 0100000 : -1.700
+	 * 45h=69  VCOMH: "VMH" + 5d   VCOML: "VMH" + 5d
+	 */
 	write_reg(par, 0xB5, 0x35, 0x20, 0x45);
 
-	/* SETPWCTR4: Set Power Control 4(B4h)
-		VRH[4:0]:	Specify the VREG1 voltage adjusting.
-				VREG1 voltage is for gamma voltage setting.
-		BT[2:0]:	Switch the output factor of step-up circuit 2
-				for VGH and VGL voltage generation. */
+	/*
+	 * SETPWCTR4: Set Power Control 4(B4h)
+	 *	VRH[4:0]:	Specify the VREG1 voltage adjusting.
+	 *			VREG1 voltage is for gamma voltage setting.
+	 *	BT[2:0]:	Switch the output factor of step-up circuit 2
+	 *			for VGH and VGL voltage generation.
+	 */
 	write_reg(par, 0xB4, 0x33, 0x25, 0x4C);
 	mdelay(10);
 
-	/* Interface Pixel Format (3Ah)
-	   This command is used to define the format of RGB picture data,
-	   which is to be transfer via the system and RGB interface. */
-	/* RGB interface: 16 Bit/Pixel	*/
-	write_reg(par, 0x3A, 0x05);
-
-	/* Display on (29h)
-	   This command is used to recover from DISPLAY OFF mode.
-	   Output from the Frame Memory is enabled. */
-	write_reg(par, 0x29);
+	/*
+	 * Interface Pixel Format (3Ah)
+	 * This command is used to define the format of RGB picture data,
+	 * which is to be transfer via the system and RGB interface.
+	 * RGB interface: 16 Bit/Pixel
+	 */
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT);
+
+	/*
+	 * Display on (29h)
+	 * This command is used to recover from DISPLAY OFF mode.
+	 * Output from the Frame Memory is enabled.
+	 */
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 	mdelay(10);
 
 	return 0;
@@ -108,30 +108,33 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	write_reg(par, FBTFT_CASET, 0x00, xs, 0x00, xe);
-	write_reg(par, FBTFT_RASET, 0x00, ys, 0x00, ye);
-	write_reg(par, FBTFT_RAMWR);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS, 0x00, xs, 0x00, xe);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS, 0x00, ys, 0x00, ye);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 static int set_var(struct fbtft_par *par)
 {
 	/* MADCTL - Memory data access control */
 	/* RGB/BGR can be set with H/W pin SRGB and MADCTL BGR bit */
-#define MY (1 << 7)
-#define MX (1 << 6)
-#define MV (1 << 5)
+#define MY BIT(7)
+#define MX BIT(6)
+#define MV BIT(5)
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x36, par->bgr << 3);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, par->bgr << 3);
 		break;
 	case 270:
-		write_reg(par, 0x36, MX | MV | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MX | MV | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, MX | MY | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MX | MY | (par->bgr << 3));
 		break;
 	case 90:
-		write_reg(par, 0x36, MY | MV | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MY | MV | (par->bgr << 3));
 		break;
 	}
 
@@ -139,16 +142,16 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-  Gamma Curve selection, GC (only GC0 can be customized):
-    0 = 2.2, 1 = 1.8, 2 = 2.5, 3 = 1.0
-  Gamma string format:
-    OP0 OP1 CP0 CP1 CP2 CP3 CP4 MP0 MP1 MP2 MP3 MP4 MP5 CGM0 CGM1
-    ON0 ON1 CN0 CN1 CN2 CN3 CN4 MN0 MN1 MN2 MN3 MN4 MN5 XXXX  GC
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma Curve selection, GC (only GC0 can be customized):
+ *   0 = 2.2, 1 = 1.8, 2 = 2.5, 3 = 1.0
+ * Gamma string format:
+ *   OP0 OP1 CP0 CP1 CP2 CP3 CP4 MP0 MP1 MP2 MP3 MP4 MP5 CGM0 CGM1
+ *   ON0 ON1 CN0 CN1 CN2 CN3 CN4 MN0 MN1 MN2 MN3 MN4 MN5 XXXX  GC
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	unsigned long mask[] = {
+	static const unsigned long mask[] = {
 		0x0f, 0x0f, 0x1f, 0x0f, 0x0f, 0x0f, 0x1f, 0x07, 0x07, 0x07,
 		0x07, 0x07, 0x07, 0x03, 0x03, 0x0f, 0x0f, 0x1f, 0x0f, 0x0f,
 		0x0f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x00, 0x00,
@@ -160,38 +163,39 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 		for (j = 0; j < par->gamma.num_values; j++)
 			CURVE(i, j) &= mask[i * par->gamma.num_values + j];
 
-	write_reg(par, 0x26, 1 << CURVE(1, 14)); /* Gamma Set (26h) */
+	/* Gamma Set (26h) */
+	write_reg(par, MIPI_DCS_SET_GAMMA_CURVE, 1 << CURVE(1, 14));
 
 	if (CURVE(1, 14))
 		return 0; /* only GC0 can be customized */
 
 	write_reg(par, 0xC2,
-		(CURVE(0, 8) << 4) | CURVE(0, 7),
-		(CURVE(0, 10) << 4) | CURVE(0, 9),
-		(CURVE(0, 12) << 4) | CURVE(0, 11),
-		CURVE(0, 2),
-		(CURVE(0, 4) << 4) | CURVE(0, 3),
-		CURVE(0, 5),
-		CURVE(0, 6),
-		(CURVE(0, 1) << 4) | CURVE(0, 0),
-		(CURVE(0, 14) << 2) | CURVE(0, 13));
+		  (CURVE(0, 8) << 4) | CURVE(0, 7),
+		  (CURVE(0, 10) << 4) | CURVE(0, 9),
+		  (CURVE(0, 12) << 4) | CURVE(0, 11),
+		  CURVE(0, 2),
+		  (CURVE(0, 4) << 4) | CURVE(0, 3),
+		  CURVE(0, 5),
+		  CURVE(0, 6),
+		  (CURVE(0, 1) << 4) | CURVE(0, 0),
+		  (CURVE(0, 14) << 2) | CURVE(0, 13));
 
 	write_reg(par, 0xC3,
-		(CURVE(1, 8) << 4) | CURVE(1, 7),
-		(CURVE(1, 10) << 4) | CURVE(1, 9),
-		(CURVE(1, 12) << 4) | CURVE(1, 11),
-		CURVE(1, 2),
-		(CURVE(1, 4) << 4) | CURVE(1, 3),
-		CURVE(1, 5),
-		CURVE(1, 6),
-		(CURVE(1, 1) << 4) | CURVE(1, 0));
+		  (CURVE(1, 8) << 4) | CURVE(1, 7),
+		  (CURVE(1, 10) << 4) | CURVE(1, 9),
+		  (CURVE(1, 12) << 4) | CURVE(1, 11),
+		  CURVE(1, 2),
+		  (CURVE(1, 4) << 4) | CURVE(1, 3),
+		  CURVE(1, 5),
+		  CURVE(1, 6),
+		  (CURVE(1, 1) << 4) | CURVE(1, 0));
 
 	mdelay(10);
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 8,
@@ -208,6 +212,7 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "himax,hx8340bn", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_hx8347d.c b/drivers/staging/fbtft/fb_hx8347d.c
index 03ae95b4f79e..a9b72a8b42b5 100644
--- a/drivers/staging/fbtft/fb_hx8347d.c
+++ b/drivers/staging/fbtft/fb_hx8347d.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8347D LCD Controller
  *
  * Copyright (C) 2013 Christian Vogelgsang
  *
  * Based on driver code found here: https://github.com/watterott/r61505u-Adapter
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
@@ -33,11 +20,8 @@
 #define DEFAULT_GAMMA	"0 0 0 0 0 0 0 0 0 0 0 0 0 0\n" \
 			"0 0 0 0 0 0 0 0 0 0 0 0 0 0"
 
-
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	/* driving ability */
@@ -84,17 +68,11 @@ static int init_display(struct fbtft_par *par)
 	mdelay(40);
 	write_reg(par, 0x28, 0x3C);
 
-	/* orientation */
-	write_reg(par, 0x16, 0x60 | (par->bgr << 3));
-
 	return 0;
 }
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	write_reg(par, 0x02, (xs >> 8) & 0xFF);
 	write_reg(par, 0x03, xs & 0xFF);
 	write_reg(par, 0x04, (xe >> 8) & 0xFF);
@@ -106,23 +84,46 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	write_reg(par, 0x22);
 }
 
+#define MEM_Y   BIT(7) /* MY row address order */
+#define MEM_X   BIT(6) /* MX column address order */
+#define MEM_V   BIT(5) /* MV row / column exchange */
+#define MEM_L   BIT(4) /* ML vertical refresh order */
+#define MEM_BGR (3) /* RGB-BGR Order */
+static int set_var(struct fbtft_par *par)
+{
+	switch (par->info->var.rotate) {
+	case 0:
+		write_reg(par, 0x16, MEM_V | MEM_X | (par->bgr << MEM_BGR));
+		break;
+	case 270:
+		write_reg(par, 0x16, par->bgr << MEM_BGR);
+		break;
+	case 180:
+		write_reg(par, 0x16, MEM_V | MEM_Y | (par->bgr << MEM_BGR));
+		break;
+	case 90:
+		write_reg(par, 0x16, MEM_X | MEM_Y | (par->bgr << MEM_BGR));
+		break;
+	}
+
+	return 0;
+}
+
 /*
-  Gamma string format:
-    VRP0 VRP1 VRP2 VRP3 VRP4 VRP5 PRP0 PRP1 PKP0 PKP1 PKP2 PKP3 PKP4 CGM
-    VRN0 VRN1 VRN2 VRN3 VRN4 VRN5 PRN0 PRN1 PKN0 PKN1 PKN2 PKN3 PKN4 CGM
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma string format:
+ *   VRP0 VRP1 VRP2 VRP3 VRP4 VRP5 PRP0 PRP1 PKP0 PKP1 PKP2 PKP3 PKP4 CGM
+ *   VRN0 VRN1 VRN2 VRN3 VRN4 VRN5 PRN0 PRN1 PKN0 PKN1 PKN2 PKN3 PKN4 CGM
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	unsigned long mask[] = {
+	static const unsigned long mask[] = {
 		0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x7f, 0x7f, 0x1f, 0x1f,
 		0x1f, 0x1f, 0x1f, 0x0f,
 	};
 	int i, j;
 	int acc = 0;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	for (i = 0; i < par->gamma.num_curves; i++)
 		for (j = 0; j < par->gamma.num_values; j++) {
@@ -152,8 +153,8 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 8,
@@ -165,9 +166,11 @@ static struct fbtft_display display = {
 	.fbtftops = {
 		.init_display = init_display,
 		.set_addr_win = set_addr_win,
+		.set_var = set_var,
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "himax,hx8347d", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_hx8353d.c b/drivers/staging/fbtft/fb_hx8353d.c
index d7f4308e1249..3e73b69b6a27 100644
--- a/drivers/staging/fbtft/fb_hx8353d.c
+++ b/drivers/staging/fbtft/fb_hx8353d.c
@@ -1,28 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8353D LCD Controller
  *
  * Copyright (c) 2014 Petr Olivka
  * Copyright (c) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -31,9 +19,6 @@
 
 static int init_display(struct fbtft_par *par)
 {
-
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 	mdelay(150);
 
@@ -53,18 +38,18 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0x3A, 0x05);
 
 	/* MEM ACCESS */
-	write_reg(par, 0x36, 0xC0);
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0xC0);
 
 	/* SLPOUT - Sleep out & booster on */
-	write_reg(par, 0x11);
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
 	mdelay(150);
 
 	/* DISPON - Display On */
-	write_reg(par, 0x29);
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 
 	/* RGBSET */
-	write_reg(par, 0x2D,
-		 0,  2,  4,  6,  8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
+	write_reg(par, MIPI_DCS_WRITE_LUT,
+		  0,  2,  4,  6,  8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
 		32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62,
 		 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 		16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
@@ -78,9 +63,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	/* column address */
 	write_reg(par, 0x2a, xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
 
@@ -91,55 +73,54 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 	write_reg(par, 0x2c);
 }
 
-#define my (1 << 7)
-#define mx (1 << 6)
-#define mv (1 << 5)
+#define my BIT(7)
+#define mx BIT(6)
+#define mv BIT(5)
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	/* madctl - memory data access control
-	     rgb/bgr:
-	     1. mode selection pin srgb
-		rgb h/w pin for color filter setting: 0=rgb, 1=bgr
-	     2. madctl rgb bit
-		rgb-bgr order color filter panel: 0=rgb, 1=bgr */
+	/*
+	 * madctl - memory data access control
+	 *   rgb/bgr:
+	 *   1. mode selection pin srgb
+	 *	rgb h/w pin for color filter setting: 0=rgb, 1=bgr
+	 *   2. madctl rgb bit
+	 *	rgb-bgr order color filter panel: 0=rgb, 1=bgr
+	 */
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x36, mx | my | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  mx | my | (par->bgr << 3));
 		break;
 	case 270:
-		write_reg(par, 0x36, my | mv | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  my | mv | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, par->bgr << 3);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  par->bgr << 3);
 		break;
 	case 90:
-		write_reg(par, 0x36, mx | mv | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  mx | mv | (par->bgr << 3));
 		break;
 	}
 
 	return 0;
 }
 
-/*
-  gamma string format:
-*/
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+/* gamma string format: */
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	write_reg(par, 0xE0,
-		curves[0], curves[1], curves[2], curves[3],
-		curves[4], curves[5], curves[6], curves[7],
-		curves[8], curves[9], curves[10], curves[11],
-		curves[12], curves[13], curves[14], curves[15],
-		curves[16], curves[17], curves[18]);
+		  curves[0], curves[1], curves[2], curves[3],
+		  curves[4], curves[5], curves[6], curves[7],
+		  curves[8], curves[9], curves[10], curves[11],
+		  curves[12], curves[13], curves[14], curves[15],
+		  curves[16], curves[17], curves[18]);
 
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = 128,
@@ -154,6 +135,7 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "himax,hx8353d", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_hx8357d.c b/drivers/staging/fbtft/fb_hx8357d.c
index 8c7bb3ac8030..94a357e8fdf6 100644
--- a/drivers/staging/fbtft/fb_hx8357d.c
+++ b/drivers/staging/fbtft/fb_hx8357d.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8357D LCD Controller
  * Copyright (C) 2015 Adafruit Industries
@@ -6,25 +7,13 @@
  * Copyright (C) 2013 Christian Vogelgsang
  *
  * Based on driver code found here: https://github.com/watterott/r61505u-Adapter
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 #include "fb_hx8357d.h"
@@ -33,15 +22,12 @@
 #define WIDTH		320
 #define HEIGHT		480
 
-
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	/* Reset things like Gamma */
-	write_reg(par, HX8357B_SWRESET);
+	write_reg(par, MIPI_DCS_SOFT_RESET);
 	usleep_range(5000, 7000);
 
 	/* setextc */
@@ -61,83 +47,83 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, HX8357_SETPANEL, 0x05);
 
 	write_reg(par, HX8357_SETPWR1,
-		0x00,  /* Not deep standby */
-		0x15,  /* BT */
-		0x1C,  /* VSPR */
-		0x1C,  /* VSNR */
-		0x83,  /* AP */
-		0xAA);  /* FS */
+		  0x00,  /* Not deep standby */
+		  0x15,  /* BT */
+		  0x1C,  /* VSPR */
+		  0x1C,  /* VSNR */
+		  0x83,  /* AP */
+		  0xAA);  /* FS */
 
 	write_reg(par, HX8357D_SETSTBA,
-		0x50,  /* OPON normal */
-		0x50,  /* OPON idle */
-		0x01,  /* STBA */
-		0x3C,  /* STBA */
-		0x1E,  /* STBA */
-		0x08);  /* GEN */
+		  0x50,  /* OPON normal */
+		  0x50,  /* OPON idle */
+		  0x01,  /* STBA */
+		  0x3C,  /* STBA */
+		  0x1E,  /* STBA */
+		  0x08);  /* GEN */
 
 	write_reg(par, HX8357D_SETCYC,
-		0x02,  /* NW 0x02 */
-		0x40,  /* RTN */
-		0x00,  /* DIV */
-		0x2A,  /* DUM */
-		0x2A,  /* DUM */
-		0x0D,  /* GDON */
-		0x78);  /* GDOFF */
+		  0x02,  /* NW 0x02 */
+		  0x40,  /* RTN */
+		  0x00,  /* DIV */
+		  0x2A,  /* DUM */
+		  0x2A,  /* DUM */
+		  0x0D,  /* GDON */
+		  0x78);  /* GDOFF */
 
 	write_reg(par, HX8357D_SETGAMMA,
-		0x02,
-		0x0A,
-		0x11,
-		0x1d,
-		0x23,
-		0x35,
-		0x41,
-		0x4b,
-		0x4b,
-		0x42,
-		0x3A,
-		0x27,
-		0x1B,
-		0x08,
-		0x09,
-		0x03,
-		0x02,
-		0x0A,
-		0x11,
-		0x1d,
-		0x23,
-		0x35,
-		0x41,
-		0x4b,
-		0x4b,
-		0x42,
-		0x3A,
-		0x27,
-		0x1B,
-		0x08,
-		0x09,
-		0x03,
-		0x00,
-		0x01);
+		  0x02,
+		  0x0A,
+		  0x11,
+		  0x1d,
+		  0x23,
+		  0x35,
+		  0x41,
+		  0x4b,
+		  0x4b,
+		  0x42,
+		  0x3A,
+		  0x27,
+		  0x1B,
+		  0x08,
+		  0x09,
+		  0x03,
+		  0x02,
+		  0x0A,
+		  0x11,
+		  0x1d,
+		  0x23,
+		  0x35,
+		  0x41,
+		  0x4b,
+		  0x4b,
+		  0x42,
+		  0x3A,
+		  0x27,
+		  0x1B,
+		  0x08,
+		  0x09,
+		  0x03,
+		  0x00,
+		  0x01);
 
 	/* 16 bit */
-	write_reg(par, HX8357_COLMOD, 0x55);
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
 
-	write_reg(par, HX8357_MADCTL, 0xC0);
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0xC0);
 
 	/* TE off */
-	write_reg(par, HX8357_TEON, 0x00);
+	write_reg(par, MIPI_DCS_SET_TEAR_ON, 0x00);
 
 	/* tear line */
-	write_reg(par, HX8357_TEARLINE, 0x00, 0x02);
+	write_reg(par, MIPI_DCS_SET_TEAR_SCANLINE, 0x00, 0x02);
 
 	/* Exit Sleep */
-	write_reg(par, HX8357_SLPOUT);
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
 	msleep(150);
 
 	/* display on */
-	write_reg(par, HX8357_DISPON);
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 	usleep_range(5000, 7000);
 
 	return 0;
@@ -145,21 +131,15 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
-	/* Column addr set */
-	write_reg(par, HX8357_CASET,
-		xs >> 8, xs & 0xff,  /* XSTART */
-		xe >> 8, xe & 0xff); /* XEND */
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xff,  /* XSTART */
+		  xe >> 8, xe & 0xff); /* XEND */
 
-	/* Row addr set */
-	write_reg(par, HX8357_PASET,
-		ys >> 8, ys & 0xff,  /* YSTART */
-		ye >> 8, ye & 0xff); /* YEND */
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xff,  /* YSTART */
+		  ye >> 8, ye & 0xff); /* YEND */
 
-	/* write to RAM */
-	write_reg(par, HX8357_RAMWR);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 #define HX8357D_MADCTL_MY  0x80
@@ -173,8 +153,6 @@ static int set_var(struct fbtft_par *par)
 {
 	u8 val;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 270:
 		val = HX8357D_MADCTL_MV | HX8357D_MADCTL_MX;
@@ -193,7 +171,7 @@ static int set_var(struct fbtft_par *par)
 	val |= (par->bgr ? HX8357D_MADCTL_RGB : HX8357D_MADCTL_BGR);
 
 	/* Memory Access Control */
-	write_reg(par, HX8357_MADCTL, val);
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, val);
 
 	return 0;
 }
@@ -210,6 +188,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "himax,hx8357d", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_hx8357d.h b/drivers/staging/fbtft/fb_hx8357d.h
index de05e8cdf04c..6180b093f94f 100644
--- a/drivers/staging/fbtft/fb_hx8357d.h
+++ b/drivers/staging/fbtft/fb_hx8357d.h
@@ -1,17 +1,18 @@
-/***************************************************
-  This is our library for the Adafruit  ILI9341 Breakout and Shield
-  ----> http://www.adafruit.com/products/1651
-
-  Check out the links above for our tutorials and wiring diagrams
-  These displays use SPI to communicate, 4 or 5 pins are required to
-  interface (RST is optional)
-  Adafruit invests time and resources providing this open source code,
-  please support Adafruit and open-source hardware by purchasing
-  products from Adafruit!
-
-  Written by Limor Fried/Ladyada for Adafruit Industries.
-  MIT license, all text above must be included in any redistribution
- ****************************************************/
+/* SPDX-License-Identifier: MIT */
+/*
+ * This is our library for the Adafruit  ILI9341 Breakout and Shield
+ * ----> http://www.adafruit.com/products/1651
+ *
+ * Check out the links above for our tutorials and wiring diagrams
+ * These displays use SPI to communicate, 4 or 5 pins are required to
+ * interface (RST is optional)
+ * Adafruit invests time and resources providing this open source code,
+ * please support Adafruit and open-source hardware by purchasing
+ * products from Adafruit!
+ *
+ * Written by Limor Fried/Ladyada for Adafruit Industries.
+ * MIT license, all text above must be included in any redistribution
+ */
 
 #ifndef __HX8357_H__
 #define __HX8357_H__
@@ -22,38 +23,6 @@
 #define HX8357_TFTWIDTH  320
 #define HX8357_TFTHEIGHT 480
 
-#define HX8357B_NOP     0x00
-#define HX8357B_SWRESET 0x01
-#define HX8357B_RDDID   0x04
-#define HX8357B_RDDST   0x09
-
-#define HX8357B_RDPOWMODE  0x0A
-#define HX8357B_RDMADCTL  0x0B
-#define HX8357B_RDCOLMOD  0x0C
-#define HX8357B_RDDIM  0x0D
-#define HX8357B_RDDSDR  0x0F
-
-#define HX8357_SLPIN   0x10
-#define HX8357_SLPOUT  0x11
-#define HX8357B_PTLON   0x12
-#define HX8357B_NORON   0x13
-
-#define HX8357_INVOFF  0x20
-#define HX8357_INVON   0x21
-#define HX8357_DISPOFF 0x28
-#define HX8357_DISPON  0x29
-
-#define HX8357_CASET   0x2A
-#define HX8357_PASET   0x2B
-#define HX8357_RAMWR   0x2C
-#define HX8357_RAMRD   0x2E
-
-#define HX8357B_PTLAR   0x30
-#define HX8357_TEON  0x35
-#define HX8357_TEARLINE  0x44
-#define HX8357_MADCTL  0x36
-#define HX8357_COLMOD  0x3A
-
 #define HX8357_SETOSC 0xB0
 #define HX8357_SETPWR1 0xB1
 #define HX8357B_SETDISPLAY 0xB2
diff --git a/drivers/staging/fbtft/fb_ili9163.c b/drivers/staging/fbtft/fb_ili9163.c
index ed92a64306ff..6582a2c90aaf 100644
--- a/drivers/staging/fbtft/fb_ili9163.c
+++ b/drivers/staging/fbtft/fb_ili9163.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9163 LCD Controller
  *
@@ -5,23 +6,13 @@
  *
  * Based on ili9325.c by Noralf Tronnes and
  * .S.U.M.O.T.O.Y. by Max MC Costa (https://github.com/sumotoy/TFT_ILI9163C).
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -38,37 +29,11 @@
 #endif
 
 /* ILI9163C commands */
-#define CMD_NOP		0x00 /* Non operation*/
-#define CMD_SWRESET	0x01 /* Soft Reset */
-#define CMD_SLPIN	0x10 /* Sleep ON */
-#define CMD_SLPOUT	0x11 /* Sleep OFF */
-#define CMD_PTLON	0x12 /* Partial Mode ON */
-#define CMD_NORML	0x13 /* Normal Display ON */
-#define CMD_DINVOF	0x20 /* Display Inversion OFF */
-#define CMD_DINVON	0x21 /* Display Inversion ON */
-#define CMD_GAMMASET	0x26 /* Gamma Set (0x01[1],0x02[2],0x04[3],0x08[4]) */
-#define CMD_DISPOFF	0x28 /* Display OFF */
-#define CMD_DISPON	0x29 /* Display ON */
-#define CMD_IDLEON	0x39 /* Idle Mode ON */
-#define CMD_IDLEOF	0x38 /* Idle Mode OFF */
-#define CMD_CLMADRS	0x2A /* Column Address Set */
-#define CMD_PGEADRS	0x2B /* Page Address Set */
-
-#define CMD_RAMWR	0x2C /* Memory Write */
-#define CMD_RAMRD	0x2E /* Memory Read */
-#define CMD_CLRSPACE	0x2D /* Color Space : 4K/65K/262K */
-#define CMD_PARTAREA	0x30 /* Partial Area */
-#define CMD_VSCLLDEF	0x33 /* Vertical Scroll Definition */
-#define CMD_TEFXLON	0x34 /* Tearing Effect Line ON */
-#define CMD_TEFXLOF	0x35 /* Tearing Effect Line OFF */
-#define CMD_MADCTL	0x36 /* Memory Access Control */
-
-#define CMD_PIXFMT	0x3A /* Interface Pixel Format */
-#define CMD_FRMCTR1	0xB1 /* Frame Rate Control
-				(In normal mode/Full colors) */
+#define CMD_FRMCTR1	0xB1 /* Frame Rate Control */
+			     /*	(In normal mode/Full colors) */
 #define CMD_FRMCTR2	0xB2 /* Frame Rate Control (In Idle mode/8-colors) */
-#define CMD_FRMCTR3	0xB3 /* Frame Rate Control
-				(In Partial mode/full colors) */
+#define CMD_FRMCTR3	0xB3 /* Frame Rate Control */
+			     /*	(In Partial mode/full colors) */
 #define CMD_DINVCTR	0xB4 /* Display Inversion Control */
 #define CMD_RGBBLK	0xB5 /* RGB Interface Blanking Porch setting */
 #define CMD_DFUNCTR	0xB6 /* Display Function set 5 */
@@ -88,17 +53,18 @@
 #define CMD_GAMRSEL	0xF2 /* GAM_R_SEL */
 
 /*
-This display:
-http://www.ebay.com/itm/Replace-Nokia-5110-LCD-1-44-Red-Serial-128X128-SPI-Color-TFT-LCD-Display-Module-/271422122271
-This particular display has a design error! The controller has 3 pins to
-configure to constrain the memory and resolution to a fixed dimension (in
-that case 128x128) but they leaved those pins configured for 128x160 so
-there was several pixel memory addressing problems.
-I solved by setup several parameters that dinamically fix the resolution as
-needit so below the parameters for this display. If you have a strain or a
-correct display (can happen with chinese) you can copy those parameters and
-create setup for different displays.
-*/
+ * This display:
+ * http://www.ebay.com/itm/Replace-Nokia-5110-LCD-1-44-Red-Serial-128X128-SPI-
+ * Color-TFT-LCD-Display-Module-/271422122271
+ * This particular display has a design error! The controller has 3 pins to
+ * configure to constrain the memory and resolution to a fixed dimension (in
+ * that case 128x128) but they leaved those pins configured for 128x160 so
+ * there was several pixel memory addressing problems.
+ * I solved by setup several parameters that dinamically fix the resolution as
+ * needit so below the parameters for this display. If you have a strain or a
+ * correct display (can happen with chinese) you can copy those parameters and
+ * create setup for different displays.
+ */
 
 #ifdef RED
 #define __OFFSET		32 /*see note 2 - this is the red version */
@@ -108,23 +74,19 @@ create setup for different displays.
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
-
-	write_reg(par, CMD_SWRESET); /* software reset */
+	write_reg(par, MIPI_DCS_SOFT_RESET); /* software reset */
 	mdelay(500);
-	write_reg(par, CMD_SLPOUT); /* exit sleep */
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE); /* exit sleep */
 	mdelay(5);
-	write_reg(par, CMD_PIXFMT, 0x05); /* Set Color Format 16bit */
-	write_reg(par, CMD_GAMMASET, 0x02); /* default gamma curve 3 */
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT);
+	/* default gamma curve 3 */
+	write_reg(par, MIPI_DCS_SET_GAMMA_CURVE, 0x02);
 #ifdef GAMMA_ADJ
 	write_reg(par, CMD_GAMRSEL, 0x01); /* Enable Gamma adj */
 #endif
-	write_reg(par, CMD_NORML);
+	write_reg(par, MIPI_DCS_ENTER_NORMAL_MODE);
 	write_reg(par, CMD_DFUNCTR, 0xff, 0x06);
 	/* Frame Rate Control (In normal mode/Full colors) */
 	write_reg(par, CMD_FRMCTR1, 0x08, 0x02);
@@ -137,75 +99,71 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, CMD_VCOMCTR1, 0x50, 0x63);
 	write_reg(par, CMD_VCOMOFFS, 0);
 
-	write_reg(par, CMD_CLMADRS, 0, 0, 0, WIDTH); /* Set Column Address */
-	write_reg(par, CMD_PGEADRS, 0, 0, 0, HEIGHT); /* Set Page Address */
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS, 0, 0, 0, WIDTH);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS, 0, 0, 0, HEIGHT);
 
-	write_reg(par, CMD_DISPON); /* display ON */
-	write_reg(par, CMD_RAMWR); /* Memory Write */
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON); /* display ON */
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START); /* Memory Write */
 
 	return 0;
 }
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys,
-				int xe, int ye)
+			 int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, CMD_CLMADRS, xs >> 8, xs & 0xff, xe >> 8,
-				xe & 0xff);
-		write_reg(par, CMD_PGEADRS,
-				(ys + __OFFSET) >> 8, (ys + __OFFSET) & 0xff,
-				(ye + __OFFSET) >> 8, (ye + __OFFSET) & 0xff);
+		write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+			  xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
+		write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+			  (ys + __OFFSET) >> 8, (ys + __OFFSET) & 0xff,
+			  (ye + __OFFSET) >> 8, (ye + __OFFSET) & 0xff);
 		break;
 	case 90:
-		write_reg(par, CMD_CLMADRS,
-				(xs + __OFFSET) >> 8, (xs + __OFFSET) & 0xff,
-				(xe + __OFFSET) >> 8, (xe + __OFFSET) & 0xff);
-		write_reg(par, CMD_PGEADRS, ys >> 8, ys & 0xff, ye >> 8,
-				ye & 0xff);
+		write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+			  (xs + __OFFSET) >> 8, (xs + __OFFSET) & 0xff,
+			  (xe + __OFFSET) >> 8, (xe + __OFFSET) & 0xff);
+		write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+			  ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
 		break;
 	case 180:
 	case 270:
-		write_reg(par, CMD_CLMADRS, xs >> 8, xs & 0xff, xe >> 8,
-				xe & 0xff);
-		write_reg(par, CMD_PGEADRS, ys >> 8, ys & 0xff, ye >> 8,
-				ye & 0xff);
+		write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+			  xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
+		write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+			  ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
 		break;
 	default:
-		par->info->var.rotate = 0; /* Fix incorrect setting */
+		/* Fix incorrect setting */
+		par->info->var.rotate = 0;
 	}
-	write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 /*
-7) MY:  1(bottom to top),	0(top to bottom)    Row Address Order
-6) MX:  1(R to L),		0(L to R)	    Column Address Order
-5) MV:  1(Exchanged),		0(normal)	    Row/Column exchange
-4) ML:  1(bottom to top),	0(top to bottom)    Vertical Refresh Order
-3) RGB: 1(BGR),			0(RGB)		    Color Space
-2) MH:  1(R to L),		0(L to R)	    Horizontal Refresh Order
-1)
-0)
-
-	MY, MX, MV, ML,RGB, MH, D1, D0
-	0 | 0 | 0 | 0 | 1 | 0 | 0 | 0	//normal
-	1 | 0 | 0 | 0 | 1 | 0 | 0 | 0	//Y-Mirror
-	0 | 1 | 0 | 0 | 1 | 0 | 0 | 0	//X-Mirror
-	1 | 1 | 0 | 0 | 1 | 0 | 0 | 0	//X-Y-Mirror
-	0 | 0 | 1 | 0 | 1 | 0 | 0 | 0	//X-Y Exchange
-	1 | 0 | 1 | 0 | 1 | 0 | 0 | 0	//X-Y Exchange, Y-Mirror
-	0 | 1 | 1 | 0 | 1 | 0 | 0 | 0	//XY exchange
-	1 | 1 | 1 | 0 | 1 | 0 | 0 | 0
-*/
+ * 7) MY:  1(bottom to top),	0(top to bottom)    Row Address Order
+ * 6) MX:  1(R to L),		0(L to R)	    Column Address Order
+ * 5) MV:  1(Exchanged),	0(normal)	    Row/Column exchange
+ * 4) ML:  1(bottom to top),	0(top to bottom)    Vertical Refresh Order
+ * 3) RGB: 1(BGR),		0(RGB)		    Color Space
+ * 2) MH:  1(R to L),		0(L to R)	    Horizontal Refresh Order
+ * 1)
+ * 0)
+ *
+ *	MY, MX, MV, ML,RGB, MH, D1, D0
+ *	0 | 0 | 0 | 0 | 1 | 0 | 0 | 0	//normal
+ *	1 | 0 | 0 | 0 | 1 | 0 | 0 | 0	//Y-Mirror
+ *	0 | 1 | 0 | 0 | 1 | 0 | 0 | 0	//X-Mirror
+ *	1 | 1 | 0 | 0 | 1 | 0 | 0 | 0	//X-Y-Mirror
+ *	0 | 0 | 1 | 0 | 1 | 0 | 0 | 0	//X-Y Exchange
+ *	1 | 0 | 1 | 0 | 1 | 0 | 0 | 0	//X-Y Exchange, Y-Mirror
+ *	0 | 1 | 1 | 0 | 1 | 0 | 0 | 0	//XY exchange
+ *	1 | 1 | 1 | 0 | 1 | 0 | 0 | 0
+ */
 static int set_var(struct fbtft_par *par)
 {
 	u8 mactrl_data = 0; /* Avoid compiler warning */
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 0:
 		mactrl_data = 0x08;
@@ -223,50 +181,49 @@ static int set_var(struct fbtft_par *par)
 
 	/* Colorspcae */
 	if (par->bgr)
-		mactrl_data |= (1 << 2);
-	write_reg(par, CMD_MADCTL, mactrl_data);
-	write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
+		mactrl_data |= BIT(2);
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, mactrl_data);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 	return 0;
 }
 
 #ifdef GAMMA_ADJ
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int gamma_adj(struct fbtft_par *par, unsigned long *curves)
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int gamma_adj(struct fbtft_par *par, u32 *curves)
 {
-	unsigned long mask[] = {
+	static const unsigned long mask[] = {
 		0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
 		0x1f, 0x3f, 0x0f, 0x0f, 0x7f, 0x1f,
 		0x3F, 0x3F, 0x3F, 0x3F, 0x3F};
 	int i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	for (i = 0; i < GAMMA_NUM; i++)
 		for (j = 0; j < GAMMA_LEN; j++)
-			CURVE(i, j) &= mask[i*par->gamma.num_values + j];
+			CURVE(i, j) &= mask[i * par->gamma.num_values + j];
 
 	write_reg(par, CMD_PGAMMAC,
-				CURVE(0, 0),
-				CURVE(0, 1),
-				CURVE(0, 2),
-				CURVE(0, 3),
-				CURVE(0, 4),
-				CURVE(0, 5),
-				CURVE(0, 6),
-				(CURVE(0, 7) << 4) | CURVE(0, 8),
-				CURVE(0, 9),
-				CURVE(0, 10),
-				CURVE(0, 11),
-				CURVE(0, 12),
-				CURVE(0, 13),
-				CURVE(0, 14),
-				CURVE(0, 15)
-				);
-
-	write_reg(par, CMD_RAMWR); /* Write Data to GRAM mode */
+		  CURVE(0, 0),
+		  CURVE(0, 1),
+		  CURVE(0, 2),
+		  CURVE(0, 3),
+		  CURVE(0, 4),
+		  CURVE(0, 5),
+		  CURVE(0, 6),
+		  (CURVE(0, 7) << 4) | CURVE(0, 8),
+		  CURVE(0, 9),
+		  CURVE(0, 10),
+		  CURVE(0, 11),
+		  CURVE(0, 12),
+		  CURVE(0, 13),
+		  CURVE(0, 14),
+		  CURVE(0, 15));
+
+	/* Write Data to GRAM mode */
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 
 	return 0;
 }
+
 #undef CURVE
 #endif
 
diff --git a/drivers/staging/fbtft/fb_ili9320.c b/drivers/staging/fbtft/fb_ili9320.c
index ef4fa6b72c79..050fc2367c12 100644
--- a/drivers/staging/fbtft/fb_ili9320.c
+++ b/drivers/staging/fbtft/fb_ili9320.c
@@ -1,27 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9320 LCD Controller
  *
  * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 
@@ -33,31 +19,25 @@
 #define DEFAULT_GAMMA	"07 07 6 0 0 0 5 5 4 0\n" \
 			"07 08 4 7 5 1 2 0 7 7"
 
-
-static unsigned read_devicecode(struct fbtft_par *par)
+static unsigned int read_devicecode(struct fbtft_par *par)
 {
-	int ret;
 	u8 rxbuf[8] = {0, };
 
 	write_reg(par, 0x0000);
-	ret = par->fbtftops.read(par, rxbuf, 4);
+	par->fbtftops.read(par, rxbuf, 4);
 	return (rxbuf[2] << 8) | rxbuf[3];
 }
 
 static int init_display(struct fbtft_par *par)
 {
-	unsigned devcode;
-
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
+	unsigned int devcode;
 
 	par->fbtftops.reset(par);
 
 	devcode = read_devicecode(par);
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "Device code: 0x%04X\n",
-		devcode);
 	if ((devcode != 0x0000) && (devcode != 0x9320))
 		dev_warn(par->info->device,
-			"Unrecognized Device code: 0x%04X (expected 0x9320)\n",
+			 "Unrecognized Device code: 0x%04X (expected 0x9320)\n",
 			devcode);
 
 	/* Initialization sequence from ILI9320 Application Notes */
@@ -96,7 +76,6 @@ static int init_display(struct fbtft_par *par)
 	/* RGB interface polarity */
 	write_reg(par, 0x000F, 0x0000);
 
-
 	/* ***********Power On sequence *************** */
 	/* SAP, BT[3:0], AP, DSTB, SLP, STB */
 	write_reg(par, 0x0010, 0x0000);
@@ -181,9 +160,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	switch (par->info->var.rotate) {
 	/* R20h = Horizontal GRAM Start Address */
 	/* R21h = Vertical GRAM Start Address */
@@ -209,8 +185,6 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 0:
 		write_reg(par, 0x3, (par->bgr << 12) | 0x30);
@@ -229,25 +203,23 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-  Gamma string format:
-    VRP0 VRP1 RP0 RP1 KP0 KP1 KP2 KP3 KP4 KP5
-    VRN0 VRN1 RN0 RN1 KN0 KN1 KN2 KN3 KN4 KN5
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma string format:
+ *  VRP0 VRP1 RP0 RP1 KP0 KP1 KP2 KP3 KP4 KP5
+ *  VRN0 VRN1 RN0 RN1 KN0 KN1 KN2 KN3 KN4 KN5
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	unsigned long mask[] = {
+	static const unsigned long mask[] = {
 		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 	};
 	int i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	for (i = 0; i < 2; i++)
 		for (j = 0; j < 10; j++)
-			CURVE(i, j) &= mask[i*par->gamma.num_values + j];
+			CURVE(i, j) &= mask[i * par->gamma.num_values + j];
 
 	write_reg(par, 0x0030, CURVE(0, 5) << 8 | CURVE(0, 4));
 	write_reg(par, 0x0031, CURVE(0, 7) << 8 | CURVE(0, 6));
@@ -263,8 +235,8 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 16,
@@ -280,6 +252,7 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9320", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_ili9325.c b/drivers/staging/fbtft/fb_ili9325.c
index 19d254e9a420..16d3b17ca279 100644
--- a/drivers/staging/fbtft/fb_ili9325.c
+++ b/drivers/staging/fbtft/fb_ili9325.c
@@ -1,29 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9325 LCD Controller
  *
  * Copyright (C) 2013 Noralf Tronnes
  *
  * Based on ili9325.c by Jeroen Domburg
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/delay.h>
 
 #include "fbtft.h"
@@ -36,78 +22,68 @@
 #define DEFAULT_GAMMA	"0F 00 7 2 0 0 6 5 4 1\n" \
 			"04 16 2 7 6 3 2 1 7 7"
 
-
-static unsigned bt = 6; /* VGL=Vci*4 , VGH=Vci*4 */
-module_param(bt, uint, 0);
+static unsigned int bt = 6; /* VGL=Vci*4 , VGH=Vci*4 */
+module_param(bt, uint, 0000);
 MODULE_PARM_DESC(bt, "Sets the factor used in the step-up circuits");
 
-static unsigned vc = 0x03; /* Vci1=Vci*0.80 */
-module_param(vc, uint, 0);
-MODULE_PARM_DESC(vc,
-"Sets the ratio factor of Vci to generate the reference voltages Vci1");
+static unsigned int vc = 0x03; /* Vci1=Vci*0.80 */
+module_param(vc, uint, 0000);
+MODULE_PARM_DESC(vc, "Sets the ratio factor of Vci to generate the reference voltages Vci1");
 
-static unsigned vrh = 0x0d; /* VREG1OUT=Vci*1.85 */
-module_param(vrh, uint, 0);
-MODULE_PARM_DESC(vrh,
-"Set the amplifying rate (1.6 ~ 1.9) of Vci applied to output the VREG1OUT");
+static unsigned int vrh = 0x0d; /* VREG1OUT=Vci*1.85 */
+module_param(vrh, uint, 0000);
+MODULE_PARM_DESC(vrh, "Set the amplifying rate (1.6 ~ 1.9) of Vci applied to output the VREG1OUT");
 
-static unsigned vdv = 0x12; /* VCOMH amplitude=VREG1OUT*0.98 */
-module_param(vdv, uint, 0);
-MODULE_PARM_DESC(vdv,
-"Select the factor of VREG1OUT to set the amplitude of Vcom");
+static unsigned int vdv = 0x12; /* VCOMH amplitude=VREG1OUT*0.98 */
+module_param(vdv, uint, 0000);
+MODULE_PARM_DESC(vdv, "Select the factor of VREG1OUT to set the amplitude of Vcom");
 
-static unsigned vcm = 0x0a; /* VCOMH=VREG1OUT*0.735 */
-module_param(vcm, uint, 0);
+static unsigned int vcm = 0x0a; /* VCOMH=VREG1OUT*0.735 */
+module_param(vcm, uint, 0000);
 MODULE_PARM_DESC(vcm, "Set the internal VcomH voltage");
 
-
 /*
-Verify that this configuration is within the Voltage limits
-
-Display module configuration: Vcc = IOVcc = Vci = 3.3V
-
- Voltages
-----------
-Vci                                =   3.3
-Vci1           =  Vci * 0.80       =   2.64
-DDVDH          =  Vci1 * 2         =   5.28
-VCL            = -Vci1             =  -2.64
-VREG1OUT       =  Vci * 1.85       =   4.88
-VCOMH          =  VREG1OUT * 0.735 =   3.59
-VCOM amplitude =  VREG1OUT * 0.98  =   4.79
-VGH            =  Vci * 4          =  13.2
-VGL            = -Vci * 4          = -13.2
-
- Limits
---------
-Power supplies
-1.65 < IOVcc < 3.30   =>  1.65 < 3.3 < 3.30
-2.40 < Vcc   < 3.30   =>  2.40 < 3.3 < 3.30
-2.50 < Vci   < 3.30   =>  2.50 < 3.3 < 3.30
-
-Source/VCOM power supply voltage
- 4.50 < DDVDH < 6.0   =>  4.50 <  5.28 <  6.0
--3.0  < VCL   < -2.0  =>  -3.0 < -2.64 < -2.0
-VCI - VCL < 6.0       =>  5.94 < 6.0
-
-Gate driver output voltage
- 10  < VGH   < 20     =>   10 <  13.2  < 20
--15  < VGL   < -5     =>  -15 < -13.2  < -5
-VGH - VGL < 32        =>   26.4 < 32
-
-VCOM driver output voltage
-VCOMH - VCOML < 6.0   =>  4.79 < 6.0
-*/
+ * Verify that this configuration is within the Voltage limits
+ *
+ * Display module configuration: Vcc = IOVcc = Vci = 3.3V
+ *
+ * Voltages
+ * ----------
+ * Vci                                =   3.3
+ * Vci1           =  Vci * 0.80       =   2.64
+ * DDVDH          =  Vci1 * 2         =   5.28
+ * VCL            = -Vci1             =  -2.64
+ * VREG1OUT       =  Vci * 1.85       =   4.88
+ * VCOMH          =  VREG1OUT * 0.735 =   3.59
+ * VCOM amplitude =  VREG1OUT * 0.98  =   4.79
+ * VGH            =  Vci * 4          =  13.2
+ * VGL            = -Vci * 4          = -13.2
+ *
+ * Limits
+ * --------
+ * Power supplies
+ * 1.65 < IOVcc < 3.30   =>  1.65 < 3.3 < 3.30
+ * 2.40 < Vcc   < 3.30   =>  2.40 < 3.3 < 3.30
+ * 2.50 < Vci   < 3.30   =>  2.50 < 3.3 < 3.30
+ *
+ * Source/VCOM power supply voltage
+ *  4.50 < DDVDH < 6.0   =>  4.50 <  5.28 <  6.0
+ * -3.0  < VCL   < -2.0  =>  -3.0 < -2.64 < -2.0
+ * VCI - VCL < 6.0       =>  5.94 < 6.0
+ *
+ * Gate driver output voltage
+ *  10  < VGH   < 20     =>   10 <  13.2  < 20
+ * -15  < VGL   < -5     =>  -15 < -13.2  < -5
+ * VGH - VGL < 32        =>   26.4 < 32
+ *
+ * VCOM driver output voltage
+ * VCOMH - VCOML < 6.0   =>  4.79 < 6.0
+ */
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
-
 	bt &= 0x07;
 	vc &= 0x07;
 	vrh &= 0x0f;
@@ -137,7 +113,7 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
 	mdelay(200); /* Dis-charge capacitor power voltage */
 	write_reg(par, 0x0010, /* SAP, BT[3:0], AP, DSTB, SLP, STB */
-		(1 << 12) | (bt << 8) | (1 << 7) | (0x01 << 4));
+		BIT(12) | (bt << 8) | BIT(7) | BIT(4));
 	write_reg(par, 0x0011, 0x220 | vc); /* DC1[2:0], DC0[2:0], VC[2:0] */
 	mdelay(50); /* Delay 50ms */
 	write_reg(par, 0x0012, vrh); /* Internal reference voltage= Vci; */
@@ -176,8 +152,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
 	switch (par->info->var.rotate) {
 	/* R20h = Horizontal GRAM Start Address */
 	/* R21h = Vertical GRAM Start Address */
@@ -203,8 +177,6 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	/* AM: GRAM update direction */
 	case 0:
@@ -225,25 +197,23 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-  Gamma string format:
-    VRP0 VRP1 RP0 RP1 KP0 KP1 KP2 KP3 KP4 KP5
-    VRN0 VRN1 RN0 RN1 KN0 KN1 KN2 KN3 KN4 KN5
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma string format:
+ *  VRP0 VRP1 RP0 RP1 KP0 KP1 KP2 KP3 KP4 KP5
+ *  VRN0 VRN1 RN0 RN1 KN0 KN1 KN2 KN3 KN4 KN5
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	unsigned long mask[] = {
+	static const unsigned long mask[] = {
 		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 	};
 	int i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	for (i = 0; i < 2; i++)
 		for (j = 0; j < 10; j++)
-			CURVE(i, j) &= mask[i*par->gamma.num_values + j];
+			CURVE(i, j) &= mask[i * par->gamma.num_values + j];
 
 	write_reg(par, 0x0030, CURVE(0, 5) << 8 | CURVE(0, 4));
 	write_reg(par, 0x0031, CURVE(0, 7) << 8 | CURVE(0, 6));
@@ -259,8 +229,8 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 16,
@@ -278,6 +248,7 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9325", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_ili9340.c b/drivers/staging/fbtft/fb_ili9340.c
index 0f4a42f89e5e..704236bcaf3f 100644
--- a/drivers/staging/fbtft/fb_ili9340.c
+++ b/drivers/staging/fbtft/fb_ili9340.c
@@ -1,28 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9340 LCD Controller
  *
  * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -30,12 +17,9 @@
 #define WIDTH		240
 #define HEIGHT		320
 
-
 /* Init sequence taken from: Arduino Library for the Adafruit 2.2" display */
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	write_reg(par, 0xEF, 0x03, 0x80, 0x02);
@@ -60,7 +44,7 @@ static int init_display(struct fbtft_par *par)
 
 	/* COLMOD: Pixel Format Set */
 	/* 16 bits/pixel */
-	write_reg(par, 0x3A, 0x55);
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
 
 	/* Frame Rate Control */
 	/* Division ratio = fosc, Frame Rate = 79Hz */
@@ -72,43 +56,37 @@ static int init_display(struct fbtft_par *par)
 	/* Gamma Function Disable */
 	write_reg(par, 0xF2, 0x00);
 
-	/* Gamma curve selected  */
-	write_reg(par, 0x26, 0x01);
+	/* Gamma curve selection */
+	write_reg(par, MIPI_DCS_SET_GAMMA_CURVE, 0x01);
 
 	/* Positive Gamma Correction */
 	write_reg(par, 0xE0,
-		0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E, 0xF1,
-		0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00);
+		  0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E, 0xF1,
+		  0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00);
 
 	/* Negative Gamma Correction */
 	write_reg(par, 0xE1,
-		0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31, 0xC1,
-		0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F);
+		  0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31, 0xC1,
+		  0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F);
 
-	/* Sleep OUT */
-	write_reg(par, 0x11);
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
 
 	mdelay(120);
 
-	/* Display ON */
-	write_reg(par, 0x29);
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 
 	return 0;
 }
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Column address */
-	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
-	/* Row address */
-	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
-
-	/* Memory write */
-	write_reg(par, 0x2C);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 #define ILI9340_MADCTL_MV  0x20
@@ -118,8 +96,6 @@ static int set_var(struct fbtft_par *par)
 {
 	u8 val;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 270:
 		val = ILI9340_MADCTL_MV;
@@ -135,12 +111,11 @@ static int set_var(struct fbtft_par *par)
 		break;
 	}
 	/* Memory Access Control  */
-	write_reg(par, 0x36, val | (par->bgr << 3));
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, val | (par->bgr << 3));
 
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -151,6 +126,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9340", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_ili9341.c b/drivers/staging/fbtft/fb_ili9341.c
index 709492e560b6..47e72b87d76d 100644
--- a/drivers/staging/fbtft/fb_ili9341.c
+++ b/drivers/staging/fbtft/fb_ili9341.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9341 LCD display controller
  *
@@ -8,26 +9,13 @@
  *
  * Copyright (C) 2013 Christian Vogelgsang
  * Based on adafruit22fb.c by Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -38,17 +26,14 @@
 #define DEFAULT_GAMMA	"1F 1A 18 0A 0F 06 45 87 32 0A 07 02 07 05 00\n" \
 			"00 25 27 05 10 09 3A 78 4D 05 18 0D 38 3A 1F"
 
-
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	/* startup sequence for MI0283QT-9A */
-	write_reg(par, 0x01); /* software reset */
+	write_reg(par, MIPI_DCS_SOFT_RESET);
 	mdelay(5);
-	write_reg(par, 0x28); /* display off */
+	write_reg(par, MIPI_DCS_SET_DISPLAY_OFF);
 	/* --------------------------------------------------------- */
 	write_reg(par, 0xCF, 0x00, 0x83, 0x30);
 	write_reg(par, 0xED, 0x64, 0x03, 0x12, 0x81);
@@ -63,18 +48,18 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0xC5, 0x35, 0x3E);
 	write_reg(par, 0xC7, 0xBE);
 	/* ------------memory access control------------------------ */
-	write_reg(par, 0x3A, 0x55); /* 16bit pixel */
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55); /* 16bit pixel */
 	/* ------------frame rate----------------------------------- */
 	write_reg(par, 0xB1, 0x00, 0x1B);
 	/* ------------Gamma---------------------------------------- */
 	/* write_reg(par, 0xF2, 0x08); */ /* Gamma Function Disable */
-	write_reg(par, 0x26, 0x01);
+	write_reg(par, MIPI_DCS_SET_GAMMA_CURVE, 0x01);
 	/* ------------display-------------------------------------- */
 	write_reg(par, 0xB7, 0x07); /* entry mode set */
 	write_reg(par, 0xB6, 0x0A, 0x82, 0x27, 0x00);
-	write_reg(par, 0x11); /* sleep out */
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
 	mdelay(100);
-	write_reg(par, 0x29); /* display on */
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 	mdelay(20);
 
 	return 0;
@@ -82,45 +67,39 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
-	/* Column address set */
-	write_reg(par, 0x2A,
-		(xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  (xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);
 
-	/* Row address set */
-	write_reg(par, 0x2B,
-		(ys >> 8) & 0xFF, ys & 0xFF, (ye >> 8) & 0xFF, ye & 0xFF);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  (ys >> 8) & 0xFF, ys & 0xFF, (ye >> 8) & 0xFF, ye & 0xFF);
 
-	/* Memory write */
-	write_reg(par, 0x2C);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
-#define MEM_Y   (7) /* MY row address order */
-#define MEM_X   (6) /* MX column address order */
-#define MEM_V   (5) /* MV row / column exchange */
-#define MEM_L   (4) /* ML vertical refresh order */
-#define MEM_H   (2) /* MH horizontal refresh order */
+#define MEM_Y   BIT(7) /* MY row address order */
+#define MEM_X   BIT(6) /* MX column address order */
+#define MEM_V   BIT(5) /* MV row / column exchange */
+#define MEM_L   BIT(4) /* ML vertical refresh order */
+#define MEM_H   BIT(2) /* MH horizontal refresh order */
 #define MEM_BGR (3) /* RGB-BGR Order */
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x36, (1 << MEM_X) | (par->bgr << MEM_BGR));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MEM_X | (par->bgr << MEM_BGR));
 		break;
 	case 270:
-		write_reg(par, 0x36,
-			(1<<MEM_V) | (1 << MEM_L) | (par->bgr << MEM_BGR));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MEM_V | MEM_L | (par->bgr << MEM_BGR));
 		break;
 	case 180:
-		write_reg(par, 0x36, (1 << MEM_Y) | (par->bgr << MEM_BGR));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MEM_Y | (par->bgr << MEM_BGR));
 		break;
 	case 90:
-		write_reg(par, 0x36, (1 << MEM_Y) | (1 << MEM_X) |
-				     (1 << MEM_V) | (par->bgr << MEM_BGR));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MEM_Y | MEM_X | MEM_V | (par->bgr << MEM_BGR));
 		break;
 	}
 
@@ -128,29 +107,27 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-  Gamma string format:
-    Positive: Par1 Par2 [...] Par15
-    Negative: Par1 Par2 [...] Par15
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma string format:
+ *  Positive: Par1 Par2 [...] Par15
+ *  Negative: Par1 Par2 [...] Par15
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
 	int i;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	for (i = 0; i < par->gamma.num_curves; i++)
 		write_reg(par, 0xE0 + i,
-			CURVE(i, 0), CURVE(i, 1), CURVE(i, 2),
-			CURVE(i, 3), CURVE(i, 4), CURVE(i, 5),
-			CURVE(i, 6), CURVE(i, 7), CURVE(i, 8),
-			CURVE(i, 9), CURVE(i, 10), CURVE(i, 11),
-			CURVE(i, 12), CURVE(i, 13), CURVE(i, 14));
+			  CURVE(i, 0), CURVE(i, 1), CURVE(i, 2),
+			  CURVE(i, 3), CURVE(i, 4), CURVE(i, 5),
+			  CURVE(i, 6), CURVE(i, 7), CURVE(i, 8),
+			  CURVE(i, 9), CURVE(i, 10), CURVE(i, 11),
+			  CURVE(i, 12), CURVE(i, 13), CURVE(i, 14));
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 8,
@@ -167,7 +144,8 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
-FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9341", &display);
+
+FBTFT_REGISTER_SPI_DRIVER(DRVNAME, "ilitek", "ili9341", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
 MODULE_ALIAS("platform:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_ili9481.c b/drivers/staging/fbtft/fb_ili9481.c
index 8bae09c2d5ce..19eba085ea53 100644
--- a/drivers/staging/fbtft/fb_ili9481.c
+++ b/drivers/staging/fbtft/fb_ili9481.c
@@ -1,28 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9481 LCD Controller
  *
  * Copyright (c) 2014 Petr Olivka
  * Copyright (c) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -30,10 +18,9 @@
 #define WIDTH		320
 #define HEIGHT		480
 
-static int default_init_sequence[] = {
-
+static const s16 default_init_sequence[] = {
 	/* SLP_OUT - Sleep out */
-	-1, 0x11,
+	-1, MIPI_DCS_EXIT_SLEEP_MODE,
 	-2, 50,
 	/* Power setting */
 	-1, 0xD0, 0x07, 0x42, 0x18,
@@ -46,49 +33,47 @@ static int default_init_sequence[] = {
 	/* Frame rate & inv. */
 	-1, 0xC5, 0x03,
 	/* Pixel format */
-	-1, 0x3A, 0x55,
+	-1, MIPI_DCS_SET_PIXEL_FORMAT, 0x55,
 	/* Gamma */
 	-1, 0xC8, 0x00, 0x32, 0x36, 0x45, 0x06, 0x16,
 		  0x37, 0x75, 0x77, 0x54, 0x0C, 0x00,
 	/* DISP_ON */
-	-1, 0x29,
+	-1, MIPI_DCS_SET_DISPLAY_ON,
 	-3
 };
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
 
-	/* column address */
-	write_reg(par, 0x2a, xs >> 8, xs & 0xff, xe >> 8, xe & 0xff);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
 
-	/* Row address */
-	write_reg(par, 0x2b, ys >> 8, ys & 0xff, ye >> 8, ye & 0xff);
-
-	/* memory write */
-	write_reg(par, 0x2c);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 #define HFLIP 0x01
 #define VFLIP 0x02
-#define ROWxCOL 0x20
+#define ROW_X_COL 0x20
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 270:
-		write_reg(par, 0x36, ROWxCOL | HFLIP | VFLIP | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  ROW_X_COL | HFLIP | VFLIP | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, VFLIP | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  VFLIP | (par->bgr << 3));
 		break;
 	case 90:
-		write_reg(par, 0x36, ROWxCOL | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  ROW_X_COL | (par->bgr << 3));
 		break;
 	default:
-		write_reg(par, 0x36, HFLIP | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  HFLIP | (par->bgr << 3));
 		break;
 	}
 
@@ -105,6 +90,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9481", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_ili9486.c b/drivers/staging/fbtft/fb_ili9486.c
index dd4ddca384ad..66210a7137fc 100644
--- a/drivers/staging/fbtft/fb_ili9486.c
+++ b/drivers/staging/fbtft/fb_ili9486.c
@@ -1,26 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9486 LCD Controller
  *
  * Copyright (C) 2014 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -28,16 +16,14 @@
 #define WIDTH		320
 #define HEIGHT		480
 
-
 /* this init sequence matches PiScreen */
-static int default_init_sequence[] = {
+static const s16 default_init_sequence[] = {
 	/* Interface Mode Control */
 	-1, 0xb0, 0x0,
-	/* Sleep OUT */
-	-1, 0x11,
+	-1, MIPI_DCS_EXIT_SLEEP_MODE,
 	-2, 250,
 	/* Interface Pixel Format */
-	-1, 0x3A, 0x55,
+	-1, MIPI_DCS_SET_PIXEL_FORMAT, 0x55,
 	/* Power Control 3 */
 	-1, 0xC2, 0x44,
 	/* VCOM Control 1 */
@@ -51,45 +37,41 @@ static int default_init_sequence[] = {
 	/* Digital Gamma Control 1 */
 	-1, 0xE2, 0x0F, 0x32, 0x2E, 0x0B, 0x0D, 0x05, 0x47, 0x75,
 		  0x37, 0x06, 0x10, 0x03, 0x24, 0x20, 0x00,
-	/* Sleep OUT */
-	-1, 0x11,
-	/* Display ON */
-	-1, 0x29,
+	-1, MIPI_DCS_EXIT_SLEEP_MODE,
+	-1, MIPI_DCS_SET_DISPLAY_ON,
 	/* end marker */
 	-3
 };
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Column address */
-	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
-	/* Row address */
-	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
-
-	/* Memory write */
-	write_reg(par, 0x2C);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x36, 0x80 | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  0x80 | (par->bgr << 3));
 		break;
 	case 90:
-		write_reg(par, 0x36, 0x20 | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  0x20 | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, 0x40 | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  0x40 | (par->bgr << 3));
 		break;
 	case 270:
-		write_reg(par, 0x36, 0xE0 | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  0xE0 | (par->bgr << 3));
 		break;
 	default:
 		break;
@@ -98,7 +80,6 @@ static int set_var(struct fbtft_par *par)
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -109,6 +90,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "ilitek,ili9486", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_pcd8544.c b/drivers/staging/fbtft/fb_pcd8544.c
index 15da0ec77513..08f8a4bb8772 100644
--- a/drivers/staging/fbtft/fb_pcd8544.c
+++ b/drivers/staging/fbtft/fb_pcd8544.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the PCD8544 LCD Controller
  *
@@ -5,26 +6,12 @@
  * Any pixel value except 0 turns the pixel on.
  *
  * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 
@@ -33,22 +20,19 @@
 #define DRVNAME	       "fb_pcd8544"
 #define WIDTH          84
 #define HEIGHT         48
-#define TXBUFLEN       (84*6)
+#define TXBUFLEN       (84 * 6)
 #define DEFAULT_GAMMA  "40" /* gamma controls the contrast in this driver */
 
-static unsigned tc;
-module_param(tc, uint, 0);
+static unsigned int tc;
+module_param(tc, uint, 0000);
 MODULE_PARM_DESC(tc, "TC[1:0] Temperature coefficient: 0-3 (default: 0)");
 
-static unsigned bs = 4;
-module_param(bs, uint, 0);
+static unsigned int bs = 4;
+module_param(bs, uint, 0000);
 MODULE_PARM_DESC(bs, "BS[2:0] Bias voltage level: 0-7 (default: 4)");
 
-
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	/* Function set
@@ -101,9 +85,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par, "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n",
-		      __func__, xs, ys, xe, ye);
-
 	/* H=0 Set X address of RAM
 	 *
 	 * 7:1  1
@@ -122,25 +103,24 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	u8 *buf = par->txbuf.buf;
 	int x, y, i;
 	int ret = 0;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
 	for (x = 0; x < 84; x++) {
 		for (y = 0; y < 6; y++) {
 			*buf = 0x00;
 			for (i = 0; i < 8; i++)
-				*buf |= (vmem16[(y*8+i)*84+x] ? 1 : 0) << i;
+				*buf |= (vmem16[(y * 8 + i) * 84 + x] ?
+					 1 : 0) << i;
 			buf++;
 		}
 	}
 
 	/* Write data */
-	gpio_set_value(par->gpio.dc, 1);
-	ret = par->fbtftops.write(par, par->txbuf.buf, 6*84);
+	gpiod_set_value(par->gpio.dc, 1);
+	ret = par->fbtftops.write(par, par->txbuf.buf, 6 * 84);
 	if (ret < 0)
 		dev_err(par->info->device, "write failed and returned: %d\n",
 			ret);
@@ -148,10 +128,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	return ret;
 }
 
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	curves[0] &= 0x7F;
 
@@ -162,7 +140,6 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -179,10 +156,11 @@ static struct fbtft_display display = {
 	},
 	.backlight = 1,
 };
-FBTFT_REGISTER_DRIVER(DRVNAME, "philips,pdc8544", &display);
+
+FBTFT_REGISTER_DRIVER(DRVNAME, "philips,pcd8544", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
-MODULE_ALIAS("spi:pdc8544");
+MODULE_ALIAS("spi:pcd8544");
 
 MODULE_DESCRIPTION("FB driver for the PCD8544 LCD Controller");
 MODULE_AUTHOR("Noralf Tronnes");
diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c
index 54bc566b09fd..0ab1de6647d0 100644
--- a/drivers/staging/fbtft/fb_ra8875.c
+++ b/drivers/staging/fbtft/fb_ra8875.c
@@ -1,32 +1,7 @@
-/******************************************************************************
-
-  ProjectName: FBTFT driver                       ***** *****
-	       for the RA8875 LCD Controller     *     *      ************
-						*   **   **   *           *
-  Copyright � by Pf@nne & NOTRO                *   *   *   *   *   ****	   *
-						*   *       *   *   *   *   *
-  Last modification by:                        *   *       *   *   ****    *
-  - Pf@nne (pf@nne-mail.de)                     *   *     *****           *
-						 *   *        *   *******
-						  *****      *   *
-  Date    : 10.06.2014                                      *   *
-  Version : V1.13                                          *****
-  Revision : 5
-
-*******************************************************************************
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * FBTFT driver for the RA8875 LCD Controller
+ * Copyright by Pf@nne & NOTRO
  */
 
 #include <linux/module.h>
@@ -34,7 +9,7 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include "fbtft.h"
 
 #define DRVNAME "fb_ra8875"
@@ -49,7 +24,7 @@ static int write_spi(struct fbtft_par *par, void *buf, size_t len)
 	struct spi_message m;
 
 	fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len,
-		"%s(len=%d): ", __func__, len);
+			  "%s(len=%zu): ", __func__, len);
 
 	if (!par->spi) {
 		dev_err(par->info->device,
@@ -58,24 +33,13 @@ static int write_spi(struct fbtft_par *par, void *buf, size_t len)
 	}
 
 	spi_message_init(&m);
-	if (par->txbuf.dma && buf == par->txbuf.buf) {
-		t.tx_dma = par->txbuf.dma;
-		m.is_dma_mapped = 1;
-	}
 	spi_message_add_tail(&t, &m);
 	return spi_sync(par->spi, &m);
 }
 
 static int init_display(struct fbtft_par *par)
 {
-	gpio_set_value(par->gpio.dc, 1);
-
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-		"%s()\n", __func__);
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-		"display size %dx%d\n",
-		par->info->var.xres,
-		par->info->var.yres);
+	gpiod_set_value(par->gpio.dc, 1);
 
 	par->fbtftops.reset(par);
 
@@ -197,18 +161,15 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	/* Set_Active_Window */
 	write_reg(par, 0x30, xs & 0x00FF);
 	write_reg(par, 0x31, (xs & 0xFF00) >> 8);
 	write_reg(par, 0x32, ys & 0x00FF);
 	write_reg(par, 0x33, (ys & 0xFF00) >> 8);
-	write_reg(par, 0x34, (xs+xe) & 0x00FF);
-	write_reg(par, 0x35, ((xs+xe) & 0xFF00) >> 8);
-	write_reg(par, 0x36, (ys+ye) & 0x00FF);
-	write_reg(par, 0x37, ((ys+ye) & 0xFF00) >> 8);
+	write_reg(par, 0x34, (xs + xe) & 0x00FF);
+	write_reg(par, 0x35, ((xs + xe) & 0xFF00) >> 8);
+	write_reg(par, 0x36, (ys + ye) & 0x00FF);
+	write_reg(par, 0x37, ((ys + ye) & 0xFF00) >> 8);
 
 	/* Set_Memory_Write_Cursor */
 	write_reg(par, 0x46,  xs & 0xff);
@@ -223,7 +184,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 {
 	va_list args;
 	int i, ret;
-	u8 *buf = (u8 *)par->buf;
+	u8 *buf = par->buf;
 
 	/* slow down spi-speed for writing registers */
 	par->fbtftops.write = write_spi;
@@ -234,7 +195,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 			buf[i] = (u8)va_arg(args, unsigned int);
 		va_end(args);
 		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device,
-			u8, buf, len, "%s: ", __func__);
+				  u8, buf, len, "%s: ", __func__);
 	}
 
 	va_start(args, len);
@@ -276,7 +237,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 {
 	u16 *vmem16;
-	u16 *txbuf16 = (u16 *)par->txbuf.buf;
+	__be16 *txbuf16;
 	size_t remain;
 	size_t to_copy;
 	size_t tx_array_size;
@@ -285,18 +246,18 @@ static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 	size_t startbyte_size = 0;
 
 	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s(offset=%zu, len=%zu)\n",
-		__func__, offset, len);
+		      __func__, offset, len);
 
 	remain = len / 2;
-	vmem16 = (u16 *)(par->info->screen_base + offset);
+	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 	tx_array_size = par->txbuf.len / 2;
-		txbuf16 = (u16 *)(par->txbuf.buf + 1);
-		tx_array_size -= 2;
-		*(u8 *)(par->txbuf.buf) = 0x00;
-		startbyte_size = 1;
+	txbuf16 = par->txbuf.buf + 1;
+	tx_array_size -= 2;
+	*(u8 *)(par->txbuf.buf) = 0x00;
+	startbyte_size = 1;
 
 	while (remain) {
-		to_copy = remain > tx_array_size ? tx_array_size : remain;
+		to_copy = min(tx_array_size, remain);
 		dev_dbg(par->info->device, "    to_copy=%zu, remain=%zu\n",
 			to_copy, remain - to_copy);
 
@@ -324,6 +285,7 @@ static struct fbtft_display display = {
 		.write = write_spi,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "raio,ra8875", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_s6d02a1.c b/drivers/staging/fbtft/fb_s6d02a1.c
index f3302525ec00..d3d6871d8c47 100644
--- a/drivers/staging/fbtft/fb_s6d02a1.c
+++ b/drivers/staging/fbtft/fb_s6d02a1.c
@@ -1,52 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the S6D02A1 LCD Controller
  *
  * Based on fb_st7735r.c by Noralf Tronnes
  * Init code from UTFT library by Henning Karlsen
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
 #define DRVNAME "fb_s6d02a1"
 
-static int default_init_sequence[] = {
-
+static const s16 default_init_sequence[] = {
 	-1, 0xf0, 0x5a, 0x5a,
 
 	-1, 0xfc, 0x5a, 0x5a,
 
-	-1, 0xfa, 0x02, 0x1f, 0x00, 0x10, 0x22, 0x30, 0x38, 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3d, 0x02, 0x01,
+	-1, 0xfa, 0x02, 0x1f, 0x00, 0x10, 0x22, 0x30, 0x38,
+	0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3d, 0x02, 0x01,
 
-	-1, 0xfb, 0x21, 0x00, 0x02, 0x04, 0x07, 0x0a, 0x0b, 0x0c, 0x0c, 0x16, 0x1e, 0x30, 0x3f, 0x01, 0x02,
+	-1, 0xfb, 0x21, 0x00, 0x02, 0x04, 0x07, 0x0a, 0x0b,
+	0x0c, 0x0c, 0x16, 0x1e, 0x30, 0x3f, 0x01, 0x02,
 
 	/* power setting sequence */
-	-1, 0xfd, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x01, 0x01, 0x00, 0x1f, 0x1f,
+	-1, 0xfd, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x01,
+	0x01, 0x00, 0x1f, 0x1f,
 
-	-1, 0xf4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x3f, 0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,
+	-1, 0xf4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x3f,
+	0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,
 
-	-1, 0xf5, 0x00, 0x70, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6d, 0x66, 0x06,
+	-1, 0xf5, 0x00, 0x70, 0x66, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x6d, 0x66, 0x06,
 
-	-1, 0xf6, 0x02, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x02, 0x00, 0x06, 0x01, 0x00,
+	-1, 0xf6, 0x02, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x02,
+	0x00, 0x06, 0x01, 0x00,
 
-	-1, 0xf2, 0x00, 0x01, 0x03, 0x08, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x04, 0x08, 0x08,
+	-1, 0xf2, 0x00, 0x01, 0x03, 0x08, 0x08, 0x04, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x04, 0x08, 0x08,
 
 	-1, 0xf8, 0x11,
 
@@ -54,7 +48,7 @@ static int default_init_sequence[] = {
 
 	-1, 0xf3, 0x00, 0x00,
 
-	-1, 0x11,
+	-1, MIPI_DCS_EXIT_SLEEP_MODE,
 	-2, 50,
 
 	-1, 0xf3, 0x00, 0x01,
@@ -66,7 +60,8 @@ static int default_init_sequence[] = {
 	-1, 0xf3, 0x00, 0x0f,
 	-2, 50,
 
-	-1, 0xf4, 0x00, 0x04, 0x00, 0x00, 0x00, 0x3f, 0x3f, 0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,
+	-1, 0xf4, 0x00, 0x04, 0x00, 0x00, 0x00, 0x3f, 0x3f,
+	0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,
 	-2, 50,
 
 	-1, 0xf3, 0x00, 0x1f,
@@ -77,24 +72,26 @@ static int default_init_sequence[] = {
 	-1, 0xf3, 0x00, 0xff,
 	-2, 50,
 
-	-1, 0xfd, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x00, 0x01, 0x00, 0x16, 0x16,
+	-1, 0xfd, 0x00, 0x00, 0x00, 0x17, 0x10, 0x00, 0x00,
+	0x01, 0x00, 0x16, 0x16,
 
-	-1, 0xf4, 0x00, 0x09, 0x00, 0x00, 0x00, 0x3f, 0x3f, 0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,
+	-1, 0xf4, 0x00, 0x09, 0x00, 0x00, 0x00, 0x3f, 0x3f,
+	0x07, 0x00, 0x3C, 0x36, 0x00, 0x3C, 0x36, 0x00,
 
 	/* initializing sequence */
 
-	-1, 0x36, 0x08,
+	-1, MIPI_DCS_SET_ADDRESS_MODE, 0x08,
 
-	-1, 0x35, 0x00,
+	-1, MIPI_DCS_SET_TEAR_ON, 0x00,
 
-	-1, 0x3a, 0x05,
+	-1, MIPI_DCS_SET_PIXEL_FORMAT, 0x05,
 
-	/* gamma setting sequence */
-	-1, 0x26, 0x01,	/* preset gamma curves, possible values 0x01, 0x02, 0x04, 0x08 */
+	/* gamma setting - possible values 0x01, 0x02, 0x04, 0x08 */
+	-1, MIPI_DCS_SET_GAMMA_CURVE, 0x01,
 
 	-2, 150,
-	-1, 0x29,
-	-1, 0x2c,
+	-1, MIPI_DCS_SET_DISPLAY_ON,
+	-1, MIPI_DCS_WRITE_MEMORY_START,
 	/* end marker */
 	-3
 
@@ -102,44 +99,44 @@ static int default_init_sequence[] = {
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
-	/* Column address */
-	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Row address */
-	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
-	/* Memory write */
-	write_reg(par, 0x2C);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
-#define MY (1 << 7)
-#define MX (1 << 6)
-#define MV (1 << 5)
+#define MY BIT(7)
+#define MX BIT(6)
+#define MV BIT(5)
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	/* MADCTL - Memory data access control
-	     RGB/BGR:
-		1. Mode selection pin SRGB
-			RGB H/W pin for color filter setting: 0=RGB, 1=BGR
-		2. MADCTL RGB bit
-			RGB-BGR ORDER color filter panel: 0=RGB, 1=BGR */
+	/*
+	 * Memory data access control (0x36h)
+	 * RGB/BGR:
+	 *	1. Mode selection pin SRGB
+	 *		RGB H/W pin for color filter setting: 0=RGB, 1=BGR
+	 *	2. MADCTL RGB bit
+	 *		RGB-BGR ORDER color filter panel: 0=RGB, 1=BGR
+	 */
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x36, MX | MY | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MX | MY | (par->bgr << 3));
 		break;
 	case 270:
-		write_reg(par, 0x36, MY | MV | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MY | MV | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, par->bgr << 3);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  par->bgr << 3);
 		break;
 	case 90:
-		write_reg(par, 0x36, MX | MV | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MX | MV | (par->bgr << 3));
 		break;
 	}
 
@@ -156,6 +153,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "samsung,s6d02a1", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_s6d1121.c b/drivers/staging/fbtft/fb_s6d1121.c
index 2e1b72ad54aa..62f27172f844 100644
--- a/drivers/staging/fbtft/fb_s6d1121.c
+++ b/drivers/staging/fbtft/fb_s6d1121.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the S6D1121 LCD Controller
  *
@@ -6,26 +7,11 @@
  * Based on fb_ili9325.c by Noralf Tronnes
  * Based on ili9325.c by Jeroen Domburg
  * Init code from UTFT library by Henning Karlsen
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/delay.h>
 
 #include "fbtft.h"
@@ -40,13 +26,8 @@
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
-
 	/* Initialization sequence from Lib_UTFT */
 
 	write_reg(par, 0x0011, 0x2004);
@@ -86,8 +67,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
 	switch (par->info->var.rotate) {
 	/* R20h = Horizontal GRAM Start Address */
 	/* R21h = Vertical GRAM Start Address */
@@ -113,8 +92,6 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	/* AM: GRAM update direction */
 	case 0:
@@ -135,26 +112,24 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-  Gamma string format:
-    PKP0 PKP1 PKP2 PKP3 PKP4 PKP5 PKP6 PKP7 PKP8 PKP9 PKP10 PKP11 VRP0 VRP1
-    PKN0 PKN1 PKN2 PKN3 PKN4 PKN5 PKN6 PKN7 PRN8 PRN9 PRN10 PRN11 VRN0 VRN1
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma string format:
+ * PKP0 PKP1 PKP2 PKP3 PKP4 PKP5 PKP6 PKP7 PKP8 PKP9 PKP10 PKP11 VRP0 VRP1
+ * PKN0 PKN1 PKN2 PKN3 PKN4 PKN5 PKN6 PKN7 PRN8 PRN9 PRN10 PRN11 VRN0 VRN1
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	unsigned long mask[] = {
+	static const unsigned long mask[] = {
 		0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
 		0x3f, 0x3f, 0x1f, 0x1f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
 		0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x1f, 0x1f,
 	};
 	int i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	for (i = 0; i < 2; i++)
 		for (j = 0; j < 14; j++)
-			CURVE(i, j) &= mask[i*par->gamma.num_values + j];
+			CURVE(i, j) &= mask[i * par->gamma.num_values + j];
 
 	write_reg(par, 0x0030, CURVE(0, 1) << 8 | CURVE(0, 0));
 	write_reg(par, 0x0031, CURVE(0, 3) << 8 | CURVE(0, 2));
@@ -175,8 +150,8 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 16,
@@ -194,6 +169,7 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "samsung,s6d1121", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_seps525.c b/drivers/staging/fbtft/fb_seps525.c
new file mode 100644
index 000000000000..46c257308b49
--- /dev/null
+++ b/drivers/staging/fbtft/fb_seps525.c
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * FB driver for the NHD-1.69-160128UGC3 (Newhaven Display International, Inc.)
+ * using the SEPS525 (Syncoam) LCD Controller
+ *
+ * Copyright (C) 2016 Analog Devices Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/bits.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include "fbtft.h"
+
+#define DRVNAME		"fb_seps525"
+#define WIDTH		160
+#define HEIGHT		128
+
+#define SEPS525_INDEX 0x00
+#define SEPS525_STATUS_RD 0x01
+#define SEPS525_OSC_CTL 0x02
+#define SEPS525_IREF 0x80
+#define SEPS525_CLOCK_DIV 0x03
+#define SEPS525_REDUCE_CURRENT 0x04
+#define SEPS525_SOFT_RST 0x05
+#define SEPS525_DISP_ONOFF 0x06
+#define SEPS525_PRECHARGE_TIME_R 0x08
+#define SEPS525_PRECHARGE_TIME_G 0x09
+#define SEPS525_PRECHARGE_TIME_B 0x0A
+#define SEPS525_PRECHARGE_CURRENT_R 0x0B
+#define SEPS525_PRECHARGE_CURRENT_G 0x0C
+#define SEPS525_PRECHARGE_CURRENT_B 0x0D
+#define SEPS525_DRIVING_CURRENT_R 0x10
+#define SEPS525_DRIVING_CURRENT_G 0x11
+#define SEPS525_DRIVING_CURRENT_B 0x12
+#define SEPS525_DISPLAYMODE_SET 0x13
+#define SEPS525_RGBIF 0x14
+#define SEPS525_RGB_POL 0x15
+#define SEPS525_MEMORY_WRITEMODE 0x16
+#define SEPS525_MX1_ADDR 0x17
+#define SEPS525_MX2_ADDR 0x18
+#define SEPS525_MY1_ADDR 0x19
+#define SEPS525_MY2_ADDR 0x1A
+#define SEPS525_MEMORY_ACCESS_POINTER_X 0x20
+#define SEPS525_MEMORY_ACCESS_POINTER_Y 0x21
+#define SEPS525_DDRAM_DATA_ACCESS_PORT 0x22
+#define SEPS525_GRAY_SCALE_TABLE_INDEX 0x50
+#define SEPS525_GRAY_SCALE_TABLE_DATA 0x51
+#define SEPS525_DUTY 0x28
+#define SEPS525_DSL 0x29
+#define SEPS525_D1_DDRAM_FAC 0x2E
+#define SEPS525_D1_DDRAM_FAR 0x2F
+#define SEPS525_D2_DDRAM_SAC 0x31
+#define SEPS525_D2_DDRAM_SAR 0x32
+#define SEPS525_SCR1_FX1 0x33
+#define SEPS525_SCR1_FX2 0x34
+#define SEPS525_SCR1_FY1 0x35
+#define SEPS525_SCR1_FY2 0x36
+#define SEPS525_SCR2_SX1 0x37
+#define SEPS525_SCR2_SX2 0x38
+#define SEPS525_SCR2_SY1 0x39
+#define SEPS525_SCR2_SY2 0x3A
+#define SEPS525_SCREEN_SAVER_CONTEROL 0x3B
+#define SEPS525_SS_SLEEP_TIMER 0x3C
+#define SEPS525_SCREEN_SAVER_MODE 0x3D
+#define SEPS525_SS_SCR1_FU 0x3E
+#define SEPS525_SS_SCR1_MXY 0x3F
+#define SEPS525_SS_SCR2_FU 0x40
+#define SEPS525_SS_SCR2_MXY 0x41
+#define SEPS525_MOVING_DIRECTION 0x42
+#define SEPS525_SS_SCR2_SX1 0x47
+#define SEPS525_SS_SCR2_SX2 0x48
+#define SEPS525_SS_SCR2_SY1 0x49
+#define SEPS525_SS_SCR2_SY2 0x4A
+
+/* SEPS525_DISPLAYMODE_SET */
+#define MODE_SWAP_BGR	BIT(7)
+#define MODE_SM		BIT(6)
+#define MODE_RD		BIT(5)
+#define MODE_CD		BIT(4)
+
+#define seps525_use_window	0 /* FBTFT doesn't really use it today */
+
+/* Init sequence taken from: Arduino Library for the Adafruit 2.2" display */
+static int init_display(struct fbtft_par *par)
+{
+	par->fbtftops.reset(par);
+
+	usleep_range(1000, 5000);
+
+	/* Disable Oscillator Power Down */
+	write_reg(par, SEPS525_REDUCE_CURRENT, 0x03);
+	usleep_range(1000, 5000);
+	/* Set Normal Driving Current */
+	write_reg(par, SEPS525_REDUCE_CURRENT, 0x00);
+	usleep_range(1000, 5000);
+
+	write_reg(par, SEPS525_SCREEN_SAVER_CONTEROL, 0x00);
+	/* Set EXPORT1 Pin at Internal Clock */
+	write_reg(par, SEPS525_OSC_CTL, 0x01);
+	/* Set Clock as 120 Frames/Sec */
+	write_reg(par, SEPS525_CLOCK_DIV, 0x90);
+	/* Set Reference Voltage Controlled by External Resister */
+	write_reg(par, SEPS525_IREF, 0x01);
+
+	/* precharge time R G B */
+	write_reg(par, SEPS525_PRECHARGE_TIME_R, 0x04);
+	write_reg(par, SEPS525_PRECHARGE_TIME_G, 0x05);
+	write_reg(par, SEPS525_PRECHARGE_TIME_B, 0x05);
+
+	/* precharge current R G B (uA) */
+	write_reg(par, SEPS525_PRECHARGE_CURRENT_R, 0x9D);
+	write_reg(par, SEPS525_PRECHARGE_CURRENT_G, 0x8C);
+	write_reg(par, SEPS525_PRECHARGE_CURRENT_B, 0x57);
+
+	/* driving current R G B (uA) */
+	write_reg(par, SEPS525_DRIVING_CURRENT_R, 0x56);
+	write_reg(par, SEPS525_DRIVING_CURRENT_G, 0x4D);
+	write_reg(par, SEPS525_DRIVING_CURRENT_B, 0x46);
+	/* Set Color Sequence */
+	write_reg(par, SEPS525_DISPLAYMODE_SET, 0xA0);
+	write_reg(par, SEPS525_RGBIF, 0x01); /* Set MCU Interface Mode */
+	/* Set Memory Write Mode */
+	write_reg(par, SEPS525_MEMORY_WRITEMODE, 0x66);
+	write_reg(par, SEPS525_DUTY, 0x7F); /* 1/128 Duty (0x0F~0x7F) */
+	/* Set Mapping RAM Display Start Line (0x00~0x7F) */
+	write_reg(par, SEPS525_DSL, 0x00);
+	write_reg(par, SEPS525_DISP_ONOFF, 0x01); /* Display On (0x00/0x01) */
+	/* Set All Internal Register Value as Normal Mode */
+	write_reg(par, SEPS525_SOFT_RST, 0x00);
+	/* Set RGB Interface Polarity as Active Low */
+	write_reg(par, SEPS525_RGB_POL, 0x00);
+
+	write_reg(par, SEPS525_DDRAM_DATA_ACCESS_PORT);
+
+	return 0;
+}
+
+static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
+{
+	if (seps525_use_window) {
+		/* Set Window Xs,Ys Xe,Ye*/
+		write_reg(par, SEPS525_MX1_ADDR, xs);
+		write_reg(par, SEPS525_MX2_ADDR, xe);
+		write_reg(par, SEPS525_MY1_ADDR, ys);
+		write_reg(par, SEPS525_MY2_ADDR, ye);
+	}
+	/* start position X,Y */
+	write_reg(par, SEPS525_MEMORY_ACCESS_POINTER_X, xs);
+	write_reg(par, SEPS525_MEMORY_ACCESS_POINTER_Y, ys);
+
+	write_reg(par, SEPS525_DDRAM_DATA_ACCESS_PORT);
+}
+
+static int set_var(struct fbtft_par *par)
+{
+	u8 val;
+
+	switch (par->info->var.rotate) {
+	case 0:
+		val = 0;
+		break;
+	case 180:
+		val = MODE_RD | MODE_CD;
+		break;
+	case 90:
+	case 270:
+
+	default:
+		return -EINVAL;
+	}
+	/* Memory Access Control  */
+	write_reg(par, SEPS525_DISPLAYMODE_SET, val |
+		       (par->bgr ? MODE_SWAP_BGR : 0));
+
+	write_reg(par, SEPS525_DDRAM_DATA_ACCESS_PORT);
+
+	return 0;
+}
+
+static struct fbtft_display display = {
+	.regwidth = 8,
+	.width = WIDTH,
+	.height = HEIGHT,
+	.fbtftops = {
+		.init_display = init_display,
+		.set_addr_win = set_addr_win,
+		.set_var = set_var,
+	},
+};
+
+FBTFT_REGISTER_DRIVER(DRVNAME, "syncoam,seps525", &display);
+
+MODULE_ALIAS("spi:" DRVNAME);
+MODULE_ALIAS("platform:" DRVNAME);
+MODULE_ALIAS("spi:seps525");
+MODULE_ALIAS("platform:seps525");
+
+MODULE_DESCRIPTION("FB driver for the SEPS525 LCD Controller");
+MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fb_sh1106.c b/drivers/staging/fbtft/fb_sh1106.c
new file mode 100644
index 000000000000..e4c50c1ffed0
--- /dev/null
+++ b/drivers/staging/fbtft/fb_sh1106.c
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * FB driver for the SH1106 OLED Controller
+ * Based on the SSD1306 driver by Noralf Tronnes
+ *
+ * Copyright (C) 2017 Heiner Kallweit
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include "fbtft.h"
+
+#define DRVNAME		"fb_sh1106"
+#define WIDTH		128
+#define HEIGHT		64
+
+/* Init sequence based on the Adafruit SSD1306 Arduino library */
+static int init_display(struct fbtft_par *par)
+{
+	if (!par->info->var.xres || par->info->var.xres > WIDTH ||
+	    !par->info->var.yres || par->info->var.yres > HEIGHT ||
+	    par->info->var.yres % 8) {
+		dev_err(par->info->device, "Invalid screen size\n");
+		return -EINVAL;
+	}
+
+	if (par->info->var.rotate) {
+		dev_err(par->info->device, "Display rotation not supported\n");
+		return -EINVAL;
+	}
+
+	par->fbtftops.reset(par);
+
+	/* Set Display OFF */
+	write_reg(par, 0xAE);
+
+	/* Set Display Clock Divide Ratio/ Oscillator Frequency */
+	write_reg(par, 0xD5, 0x80);
+
+	/* Set Multiplex Ratio */
+	write_reg(par, 0xA8, par->info->var.yres - 1);
+
+	/* Set Display Offset */
+	write_reg(par, 0xD3, 0x00);
+
+	/* Set Display Start Line */
+	write_reg(par, 0x40 | 0x0);
+
+	/* Set Segment Re-map */
+	/* column address 127 is mapped to SEG0 */
+	write_reg(par, 0xA0 | 0x1);
+
+	/* Set COM Output Scan Direction */
+	/* remapped mode. Scan from COM[N-1] to COM0 */
+	write_reg(par, 0xC8);
+
+	/* Set COM Pins Hardware Configuration */
+	if (par->info->var.yres == 64)
+		/* A[4]=1b, Alternative COM pin configuration */
+		write_reg(par, 0xDA, 0x12);
+	else if (par->info->var.yres == 48)
+		/* A[4]=1b, Alternative COM pin configuration */
+		write_reg(par, 0xDA, 0x12);
+	else
+		/* A[4]=0b, Sequential COM pin configuration */
+		write_reg(par, 0xDA, 0x02);
+
+	/* Set Pre-charge Period */
+	write_reg(par, 0xD9, 0xF1);
+
+	/* Set VCOMH Deselect Level */
+	write_reg(par, 0xDB, 0x40);
+
+	/* Set Display ON */
+	write_reg(par, 0xAF);
+
+	msleep(150);
+
+	return 0;
+}
+
+static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
+{
+}
+
+static int blank(struct fbtft_par *par, bool on)
+{
+	write_reg(par, on ? 0xAE : 0xAF);
+
+	return 0;
+}
+
+/* Gamma is used to control Contrast */
+static int set_gamma(struct fbtft_par *par, u32 *curves)
+{
+	/* apply mask */
+	curves[0] &= 0xFF;
+
+	/* Set Contrast Control for BANK0 */
+	write_reg(par, 0x81, curves[0]);
+
+	return 0;
+}
+
+static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
+{
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
+	u32 xres = par->info->var.xres;
+	int page, page_start, page_end, x, i, ret;
+	u8 *buf = par->txbuf.buf;
+
+	/* offset refers to vmem with 2 bytes element size */
+	page_start = offset / (8 * 2 * xres);
+	page_end = DIV_ROUND_UP(offset + len, 8 * 2 * xres);
+
+	for (page = page_start; page < page_end; page++) {
+		/* set page and set column to 2 because of vidmem width 132 */
+		write_reg(par, 0xb0 | page, 0x00 | 2, 0x10 | 0);
+
+		memset(buf, 0, xres);
+		for (x = 0; x < xres; x++)
+			for (i = 0; i < 8; i++)
+				if (vmem16[(page * 8 + i) * xres + x])
+					buf[x] |= BIT(i);
+
+		/* Write data */
+		ret = fbtft_write_buf_dc(par, buf, xres, 1);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void write_register(struct fbtft_par *par, int len, ...)
+{
+	va_list args;
+	int i;
+
+	va_start(args, len);
+
+	for (i = 0; i < len; i++)
+		par->buf[i] = va_arg(args, unsigned int);
+
+	/* keep DC low for all command bytes to transfer */
+	fbtft_write_buf_dc(par, par->buf, len, 0);
+
+	va_end(args);
+}
+
+static struct fbtft_display display = {
+	.regwidth = 8,
+	.width = WIDTH,
+	.height = HEIGHT,
+	.txbuflen = WIDTH,
+	.gamma_num = 1,
+	.gamma_len = 1,
+	/* set default contrast to 0xcd = 80% */
+	.gamma = "cd",
+	.fbtftops = {
+		.write_vmem = write_vmem,
+		.write_register = write_register,
+		.init_display = init_display,
+		.set_addr_win = set_addr_win,
+		.blank = blank,
+		.set_gamma = set_gamma,
+	},
+};
+
+FBTFT_REGISTER_SPI_DRIVER(DRVNAME, "sinowealth", "sh1106", &display);
+
+MODULE_DESCRIPTION("SH1106 OLED Driver");
+MODULE_AUTHOR("Heiner Kallweit");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fb_ssd1289.c b/drivers/staging/fbtft/fb_ssd1289.c
index 17a77e061498..255a6d21ca8e 100644
--- a/drivers/staging/fbtft/fb_ssd1289.c
+++ b/drivers/staging/fbtft/fb_ssd1289.c
@@ -1,29 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the SSD1289 LCD Controller
  *
  * Copyright (C) 2013 Noralf Tronnes
  *
  * Init sequence taken from ITDB02_Graph16.cpp - (C)2010-2011 Henning Karlsen
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 
 #include "fbtft.h"
 
@@ -33,20 +19,14 @@
 #define DEFAULT_GAMMA	"02 03 2 5 7 7 4 2 4 2\n" \
 			"02 03 2 5 7 5 4 2 4 2"
 
-static unsigned reg11 = 0x6040;
-module_param(reg11, uint, 0);
+static unsigned int reg11 = 0x6040;
+module_param(reg11, uint, 0000);
 MODULE_PARM_DESC(reg11, "Register 11h value");
 
-
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
-
 	write_reg(par, 0x00, 0x0001);
 	write_reg(par, 0x03, 0xA8A4);
 	write_reg(par, 0x0C, 0x0000);
@@ -54,7 +34,7 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0x0E, 0x2B00);
 	write_reg(par, 0x1E, 0x00B7);
 	write_reg(par, 0x01,
-		(1 << 13) | (par->bgr << 11) | (1 << 9) | (HEIGHT - 1));
+		  BIT(13) | (par->bgr << 11) | BIT(9) | (HEIGHT - 1));
 	write_reg(par, 0x02, 0x0600);
 	write_reg(par, 0x10, 0x0000);
 	write_reg(par, 0x05, 0x0000);
@@ -84,9 +64,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	switch (par->info->var.rotate) {
 	/* R4Eh - Set GDDRAM X address counter */
 	/* R4Fh - Set GDDRAM Y address counter */
@@ -114,13 +91,8 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	if (par->fbtftops.init_display != init_display) {
 		/* don't risk messing up register 11h */
-		fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-			"%s: skipping since custom init_display() is used\n",
-			__func__);
 		return 0;
 	}
 
@@ -143,25 +115,23 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-  Gamma string format:
-    VRP0 VRP1 PRP0 PRP1 PKP0 PKP1 PKP2 PKP3 PKP4 PKP5
-    VRN0 VRN1 PRN0 PRN1 PKN0 PKN1 PKN2 PKN3 PKN4 PKN5
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma string format:
+ * VRP0 VRP1 PRP0 PRP1 PKP0 PKP1 PKP2 PKP3 PKP4 PKP5
+ * VRN0 VRN1 PRN0 PRN1 PKN0 PKN1 PKN2 PKN3 PKN4 PKN5
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	unsigned long mask[] = {
+	static const unsigned long mask[] = {
 		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 		0x1f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
 	};
 	int i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	for (i = 0; i < 2; i++)
 		for (j = 0; j < 10; j++)
-			CURVE(i, j) &= mask[i*par->gamma.num_values + j];
+			CURVE(i, j) &= mask[i * par->gamma.num_values + j];
 
 	write_reg(par, 0x0030, CURVE(0, 5) << 8 | CURVE(0, 4));
 	write_reg(par, 0x0031, CURVE(0, 7) << 8 | CURVE(0, 6));
@@ -176,8 +146,8 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 16,
@@ -193,6 +163,7 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "solomon,ssd1289", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_ssd1305.c b/drivers/staging/fbtft/fb_ssd1305.c
new file mode 100644
index 000000000000..020fe48fed0b
--- /dev/null
+++ b/drivers/staging/fbtft/fb_ssd1305.c
@@ -0,0 +1,207 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * FB driver for the SSD1305 OLED Controller
+ *
+ * based on SSD1306 driver by Noralf Tronnes
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/gpio/consumer.h>
+#include <linux/delay.h>
+
+#include "fbtft.h"
+
+#define DRVNAME		"fb_ssd1305"
+
+#define WIDTH 128
+#define HEIGHT 64
+
+/*
+ * write_reg() caveat:
+ *
+ *    This doesn't work because D/C has to be LOW for both values:
+ *      write_reg(par, val1, val2);
+ *
+ *    Do it like this:
+ *      write_reg(par, val1);
+ *      write_reg(par, val2);
+ */
+
+/* Init sequence taken from the Adafruit SSD1306 Arduino library */
+static int init_display(struct fbtft_par *par)
+{
+	par->fbtftops.reset(par);
+
+	if (par->gamma.curves[0] == 0) {
+		mutex_lock(&par->gamma.lock);
+		if (par->info->var.yres == 64)
+			par->gamma.curves[0] = 0xCF;
+		else
+			par->gamma.curves[0] = 0x8F;
+		mutex_unlock(&par->gamma.lock);
+	}
+
+	/* Set Display OFF */
+	write_reg(par, 0xAE);
+
+	/* Set Display Clock Divide Ratio/ Oscillator Frequency */
+	write_reg(par, 0xD5);
+	write_reg(par, 0x80);
+
+	/* Set Multiplex Ratio */
+	write_reg(par, 0xA8);
+	if (par->info->var.yres == 64)
+		write_reg(par, 0x3F);
+	else
+		write_reg(par, 0x1F);
+
+	/* Set Display Offset */
+	write_reg(par, 0xD3);
+	write_reg(par, 0x0);
+
+	/* Set Display Start Line */
+	write_reg(par, 0x40 | 0x0);
+
+	/* Charge Pump Setting */
+	write_reg(par, 0x8D);
+	/* A[2] = 1b, Enable charge pump during display on */
+	write_reg(par, 0x14);
+
+	/* Set Memory Addressing Mode */
+	write_reg(par, 0x20);
+	/* Vertical addressing mode  */
+	write_reg(par, 0x01);
+
+	/*
+	 * Set Segment Re-map
+	 * column address 127 is mapped to SEG0
+	 */
+	write_reg(par, 0xA0 | ((par->info->var.rotate == 180) ? 0x0 : 0x1));
+
+	/*
+	 * Set COM Output Scan Direction
+	 * remapped mode. Scan from COM[N-1] to COM0
+	 */
+	write_reg(par, ((par->info->var.rotate == 180) ? 0xC8 : 0xC0));
+
+	/* Set COM Pins Hardware Configuration */
+	write_reg(par, 0xDA);
+	if (par->info->var.yres == 64) {
+		/* A[4]=1b, Alternative COM pin configuration */
+		write_reg(par, 0x12);
+	} else {
+		/* A[4]=0b, Sequential COM pin configuration */
+		write_reg(par, 0x02);
+	}
+
+	/* Set Pre-charge Period */
+	write_reg(par, 0xD9);
+	write_reg(par, 0xF1);
+
+	/*
+	 * Entire Display ON
+	 * Resume to RAM content display. Output follows RAM content
+	 */
+	write_reg(par, 0xA4);
+
+	/*
+	 * Set Normal Display
+	 *  0 in RAM: OFF in display panel
+	 *  1 in RAM: ON in display panel
+	 */
+	write_reg(par, 0xA6);
+
+	/* Set Display ON */
+	write_reg(par, 0xAF);
+
+	return 0;
+}
+
+static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
+{
+	/* Set Lower Column Start Address for Page Addressing Mode */
+	write_reg(par, 0x00 | ((par->info->var.rotate == 180) ? 0x0 : 0x4));
+	/* Set Higher Column Start Address for Page Addressing Mode */
+	write_reg(par, 0x10 | 0x0);
+	/* Set Display Start Line */
+	write_reg(par, 0x40 | 0x0);
+}
+
+static int blank(struct fbtft_par *par, bool on)
+{
+	if (on)
+		write_reg(par, 0xAE);
+	else
+		write_reg(par, 0xAF);
+	return 0;
+}
+
+/* Gamma is used to control Contrast */
+static int set_gamma(struct fbtft_par *par, u32 *curves)
+{
+	curves[0] &= 0xFF;
+	/* Set Contrast Control for BANK0 */
+	write_reg(par, 0x81);
+	write_reg(par, curves[0]);
+
+	return 0;
+}
+
+static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
+{
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
+	u8 *buf = par->txbuf.buf;
+	int x, y, i;
+	int ret;
+
+	for (x = 0; x < par->info->var.xres; x++) {
+		for (y = 0; y < par->info->var.yres / 8; y++) {
+			*buf = 0x00;
+			for (i = 0; i < 8; i++)
+				*buf |= (vmem16[(y * 8 + i) *
+						par->info->var.xres + x] ?
+					 1 : 0) << i;
+			buf++;
+		}
+	}
+
+	/* Write data */
+	gpiod_set_value(par->gpio.dc, 1);
+	ret = par->fbtftops.write(par, par->txbuf.buf,
+				  par->info->var.xres * par->info->var.yres /
+				  8);
+	if (ret < 0)
+		dev_err(par->info->device, "write failed and returned: %d\n",
+			ret);
+	return ret;
+}
+
+static struct fbtft_display display = {
+	.regwidth = 8,
+	.width = WIDTH,
+	.height = HEIGHT,
+	.txbuflen = WIDTH * HEIGHT / 8,
+	.gamma_num = 1,
+	.gamma_len = 1,
+	.gamma = "00",
+	.fbtftops = {
+		.write_vmem = write_vmem,
+		.init_display = init_display,
+		.set_addr_win = set_addr_win,
+		.blank = blank,
+		.set_gamma = set_gamma,
+	},
+};
+
+FBTFT_REGISTER_DRIVER(DRVNAME, "solomon,ssd1305", &display);
+
+MODULE_ALIAS("spi:" DRVNAME);
+MODULE_ALIAS("platform:" DRVNAME);
+MODULE_ALIAS("spi:ssd1305");
+MODULE_ALIAS("platform:ssd1305");
+
+MODULE_DESCRIPTION("SSD1305 OLED Driver");
+MODULE_AUTHOR("Alexey Mednyy");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fb_ssd1306.c b/drivers/staging/fbtft/fb_ssd1306.c
index 15ee44dd130b..478d710469b9 100644
--- a/drivers/staging/fbtft/fb_ssd1306.c
+++ b/drivers/staging/fbtft/fb_ssd1306.c
@@ -1,27 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the SSD1306 OLED Controller
  *
  * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/delay.h>
 
 #include "fbtft.h"
@@ -30,23 +17,20 @@
 #define WIDTH		128
 #define HEIGHT		64
 
-
 /*
-  write_reg() caveat:
-
-     This doesn't work because D/C has to be LOW for both values:
-       write_reg(par, val1, val2);
-
-     Do it like this:
-       write_reg(par, val1);
-       write_reg(par, val2);
-*/
+ * write_reg() caveat:
+ *
+ * This doesn't work because D/C has to be LOW for both values:
+ * write_reg(par, val1, val2);
+ *
+ * Do it like this:
+ * write_reg(par, val1);
+ * write_reg(par, val2);
+ */
 
 /* Init sequence taken from the Adafruit SSD1306 Arduino library */
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	if (par->gamma.curves[0] == 0) {
@@ -69,6 +53,8 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0xA8);
 	if (par->info->var.yres == 64)
 		write_reg(par, 0x3F);
+	else if (par->info->var.yres == 48)
+		write_reg(par, 0x2F);
 	else
 		write_reg(par, 0x1F);
 
@@ -89,7 +75,7 @@ static int init_display(struct fbtft_par *par)
 	/* Vertical addressing mode  */
 	write_reg(par, 0x01);
 
-	/*Set Segment Re-map */
+	/* Set Segment Re-map */
 	/* column address 127 is mapped to SEG0 */
 	write_reg(par, 0xA0 | 0x1);
 
@@ -102,6 +88,9 @@ static int init_display(struct fbtft_par *par)
 	if (par->info->var.yres == 64)
 		/* A[4]=1b, Alternative COM pin configuration */
 		write_reg(par, 0x12);
+	else if (par->info->var.yres == 48)
+		/* A[4]=1b, Alternative COM pin configuration */
+		write_reg(par, 0x12);
 	else
 		/* A[4]=0b, Sequential COM pin configuration */
 		write_reg(par, 0x02);
@@ -120,8 +109,9 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0xA4);
 
 	/* Set Normal Display
-	   0 in RAM: OFF in display panel
-	   1 in RAM: ON in display panel */
+	 * 0 in RAM: OFF in display panel
+	 * 1 in RAM: ON in display panel
+	 */
 	write_reg(par, 0xA6);
 
 	/* Set Display ON */
@@ -130,24 +120,34 @@ static int init_display(struct fbtft_par *par)
 	return 0;
 }
 
-static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
+static void set_addr_win_64x48(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
+	/* Set Column Address */
+	write_reg(par, 0x21);
+	write_reg(par, 0x20);
+	write_reg(par, 0x5F);
+
+	/* Set Page Address */
+	write_reg(par, 0x22);
+	write_reg(par, 0x0);
+	write_reg(par, 0x5);
+}
 
+static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
+{
 	/* Set Lower Column Start Address for Page Addressing Mode */
 	write_reg(par, 0x00 | 0x0);
 	/* Set Higher Column Start Address for Page Addressing Mode */
 	write_reg(par, 0x10 | 0x0);
 	/* Set Display Start Line */
 	write_reg(par, 0x40 | 0x0);
+
+	if (par->info->var.xres == 64 && par->info->var.yres == 48)
+		set_addr_win_64x48(par);
 }
 
 static int blank(struct fbtft_par *par, bool on)
 {
-	fbtft_par_dbg(DEBUG_BLANK, par, "%s(blank=%s)\n",
-		__func__, on ? "true" : "false");
-
 	if (on)
 		write_reg(par, 0xAE);
 	else
@@ -156,10 +156,8 @@ static int blank(struct fbtft_par *par, bool on)
 }
 
 /* Gamma is used to control Contrast */
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	curves[0] &= 0xFF;
 
@@ -172,26 +170,26 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
+	u32 xres = par->info->var.xres;
+	u32 yres = par->info->var.yres;
 	u8 *buf = par->txbuf.buf;
 	int x, y, i;
 	int ret = 0;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
-	for (x = 0; x < par->info->var.xres; x++) {
-		for (y = 0; y < par->info->var.yres/8; y++) {
+	for (x = 0; x < xres; x++) {
+		for (y = 0; y < yres / 8; y++) {
 			*buf = 0x00;
 			for (i = 0; i < 8; i++)
-				*buf |= (vmem16[(y*8+i)*par->info->var.xres+x] ? 1 : 0) << i;
+				if (vmem16[(y * 8 + i) * xres + x])
+					*buf |= BIT(i);
 			buf++;
 		}
 	}
 
 	/* Write data */
-	gpio_set_value(par->gpio.dc, 1);
-	ret = par->fbtftops.write(par, par->txbuf.buf,
-				par->info->var.xres*par->info->var.yres/8);
+	gpiod_set_value(par->gpio.dc, 1);
+	ret = par->fbtftops.write(par, par->txbuf.buf, xres * yres / 8);
 	if (ret < 0)
 		dev_err(par->info->device, "write failed and returned: %d\n",
 			ret);
@@ -199,7 +197,6 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	return ret;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -216,7 +213,6 @@ static struct fbtft_display display = {
 	},
 };
 
-
 FBTFT_REGISTER_DRIVER(DRVNAME, "solomon,ssd1306", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_ssd1325.c b/drivers/staging/fbtft/fb_ssd1325.c
new file mode 100644
index 000000000000..256b0b87a930
--- /dev/null
+++ b/drivers/staging/fbtft/fb_ssd1325.c
@@ -0,0 +1,185 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * FB driver for the SSD1325 OLED Controller
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/gpio/consumer.h>
+#include <linux/delay.h>
+
+#include "fbtft.h"
+
+#define DRVNAME		"fb_ssd1325"
+
+#define WIDTH 128
+#define HEIGHT 64
+#define GAMMA_NUM   1
+#define GAMMA_LEN   15
+#define DEFAULT_GAMMA "7 1 1 1 1 2 2 3 3 4 4 5 5 6 6"
+
+/*
+ * write_reg() caveat:
+ *
+ *    This doesn't work because D/C has to be LOW for both values:
+ *      write_reg(par, val1, val2);
+ *
+ *    Do it like this:
+ *      write_reg(par, val1);
+ *      write_reg(par, val2);
+ */
+
+/* Init sequence taken from the Adafruit SSD1306 Arduino library */
+static int init_display(struct fbtft_par *par)
+{
+	par->fbtftops.reset(par);
+
+	write_reg(par, 0xb3);
+	write_reg(par, 0xf0);
+	write_reg(par, 0xae);
+	write_reg(par, 0xa1);
+	write_reg(par, 0x00);
+	write_reg(par, 0xa8);
+	write_reg(par, 0x3f);
+	write_reg(par, 0xa0);
+	write_reg(par, 0x45);
+	write_reg(par, 0xa2);
+	write_reg(par, 0x40);
+	write_reg(par, 0x75);
+	write_reg(par, 0x00);
+	write_reg(par, 0x3f);
+	write_reg(par, 0x15);
+	write_reg(par, 0x00);
+	write_reg(par, 0x7f);
+	write_reg(par, 0xa4);
+	write_reg(par, 0xaf);
+
+	return 0;
+}
+
+static uint8_t rgb565_to_g16(u16 pixel)
+{
+	u16 b = pixel & 0x1f;
+	u16 g = (pixel & (0x3f << 5)) >> 5;
+	u16 r = (pixel & (0x1f << (5 + 6))) >> (5 + 6);
+
+	pixel = (299 * r + 587 * g + 114 * b) / 195;
+	if (pixel > 255)
+		pixel = 255;
+	return (uint8_t)pixel / 16;
+}
+
+static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
+{
+	write_reg(par, 0x75);
+	write_reg(par, 0x00);
+	write_reg(par, 0x3f);
+	write_reg(par, 0x15);
+	write_reg(par, 0x00);
+	write_reg(par, 0x7f);
+}
+
+static int blank(struct fbtft_par *par, bool on)
+{
+	if (on)
+		write_reg(par, 0xAE);
+	else
+		write_reg(par, 0xAF);
+	return 0;
+}
+
+/*
+ * Grayscale Lookup Table
+ * GS1 - GS15
+ * The "Gamma curve" contains the relative values between the entries
+ * in the Lookup table.
+ *
+ * 0 = Setting of GS1 < Setting of GS2 < Setting of GS3.....<
+ * Setting of GS14 < Setting of GS15
+ */
+static int set_gamma(struct fbtft_par *par, u32 *curves)
+{
+	int i;
+
+	for (i = 0; i < GAMMA_LEN; i++) {
+		if (i > 0 && curves[i] < 1) {
+			dev_err(par->info->device,
+				"Illegal value in Grayscale Lookup Table at index %d.\n"
+				"Must be greater than 0\n", i);
+			return -EINVAL;
+		}
+		if (curves[i] > 7) {
+			dev_err(par->info->device,
+				"Illegal value(s) in Grayscale Lookup Table.\n"
+				"At index=%d, the accumulated value has exceeded 7\n",
+				i);
+			return -EINVAL;
+		}
+	}
+	write_reg(par, 0xB8);
+	for (i = 0; i < 8; i++)
+		write_reg(par, (curves[i] & 0xFF));
+	return 0;
+}
+
+static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
+{
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
+	u8 *buf = par->txbuf.buf;
+	u8 n1;
+	u8 n2;
+	int y, x;
+	int ret;
+
+	for (x = 0; x < par->info->var.xres; x++) {
+		if (x % 2)
+			continue;
+		for (y = 0; y < par->info->var.yres; y++) {
+			n1 = rgb565_to_g16(vmem16[y * par->info->var.xres + x]);
+			n2 = rgb565_to_g16(vmem16
+					   [y * par->info->var.xres + x + 1]);
+			*buf = (n1 << 4) | n2;
+			buf++;
+		}
+	}
+
+	gpiod_set_value(par->gpio.dc, 1);
+
+	/* Write data */
+	ret = par->fbtftops.write(par, par->txbuf.buf,
+				par->info->var.xres * par->info->var.yres / 2);
+	if (ret < 0)
+		dev_err(par->info->device,
+			"%s: write failed and returned: %d\n", __func__, ret);
+
+	return ret;
+}
+
+static struct fbtft_display display = {
+	.regwidth = 8,
+	.width = WIDTH,
+	.height = HEIGHT,
+	.txbuflen = WIDTH * HEIGHT / 2,
+	.gamma_num = GAMMA_NUM,
+	.gamma_len = GAMMA_LEN,
+	.gamma = DEFAULT_GAMMA,
+	.fbtftops = {
+		.write_vmem = write_vmem,
+		.init_display = init_display,
+		.set_addr_win = set_addr_win,
+		.blank = blank,
+		.set_gamma = set_gamma,
+	},
+};
+
+FBTFT_REGISTER_DRIVER(DRVNAME, "solomon,ssd1325", &display);
+
+MODULE_ALIAS("spi:" DRVNAME);
+MODULE_ALIAS("platform:" DRVNAME);
+MODULE_ALIAS("spi:ssd1325");
+MODULE_ALIAS("platform:ssd1325");
+
+MODULE_DESCRIPTION("SSD1325 OLED Driver");
+MODULE_AUTHOR("Alexey Mednyy");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c
index 5bb741046c85..06b7056d6c71 100644
--- a/drivers/staging/fbtft/fb_ssd1331.c
+++ b/drivers/staging/fbtft/fb_ssd1331.c
@@ -1,7 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 
@@ -23,12 +24,16 @@
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	write_reg(par, 0xae); /* Display Off */
-	write_reg(par, 0xa0, 0x70 | (par->bgr << 2)); /* Set Colour Depth */
+
+	/* Set Column Address Mapping, COM Scan Direction and Colour Depth */
+	if (par->info->var.rotate == 180)
+		write_reg(par, 0xa0, 0x60 | (par->bgr << 2));
+	else
+		write_reg(par, 0xa0, 0x72 | (par->bgr << 2));
+
 	write_reg(par, 0x72); /* RGB colour */
 	write_reg(par, 0xa1, 0x00); /* Set Display Start Line */
 	write_reg(par, 0xa2, 0x00); /* Set Display Offset */
@@ -54,9 +59,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	write_reg(par, 0x15, xs, xe);
 	write_reg(par, 0x75, ys, ye);
 }
@@ -65,21 +67,21 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 {
 	va_list args;
 	int i, ret;
-	u8 *buf = (u8 *)par->buf;
+	u8 *buf = par->buf;
 
 	if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) {
 		va_start(args, len);
 		for (i = 0; i < len; i++)
 			buf[i] = (u8)va_arg(args, unsigned int);
 		va_end(args);
-		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, u8, buf, len, "%s: ", __func__);
+		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device,
+				  u8, buf, len, "%s: ", __func__);
 	}
 
 	va_start(args, len);
 
 	*buf = (u8)va_arg(args, unsigned int);
-	if (par->gpio.dc != -1)
-		gpio_set_value(par->gpio.dc, 0);
+	gpiod_set_value(par->gpio.dc, 0);
 	ret = par->fbtftops.write(par, par->buf, sizeof(u8));
 	if (ret < 0) {
 		va_end(args);
@@ -101,74 +103,70 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 			return;
 		}
 	}
-	if (par->gpio.dc != -1)
-		gpio_set_value(par->gpio.dc, 1);
+	gpiod_set_value(par->gpio.dc, 1);
 	va_end(args);
 }
 
 /*
-	Grayscale Lookup Table
-	GS1 - GS63
-	The driver Gamma curve contains the relative values between the entries
-	in the Lookup table.
-
-	From datasheet:
-	8.8 Gray Scale Decoder
-
-		there are total 180 Gamma Settings (Setting 0 to Setting 180)
-		available for the Gray Scale table.
-
-		The gray scale is defined in incremental way, with reference
-		to the length of previous table entry:
-			Setting of GS1 has to be >= 0
-			Setting of GS2 has to be > Setting of GS1 +1
-			Setting of GS3 has to be > Setting of GS2 +1
-			:
-			Setting of GS63 has to be > Setting of GS62 +1
-
-
-*/
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Grayscale Lookup Table
+ * GS1 - GS63
+ * The driver Gamma curve contains the relative values between the entries
+ * in the Lookup table.
+ *
+ * From datasheet:
+ * 8.8 Gray Scale Decoder
+ *
+ * there are total 180 Gamma Settings (Setting 0 to Setting 180)
+ * available for the Gray Scale table.
+ *
+ * The gray scale is defined in incremental way, with reference
+ * to the length of previous table entry:
+ * Setting of GS1 has to be >= 0
+ * Setting of GS2 has to be > Setting of GS1 +1
+ * Setting of GS3 has to be > Setting of GS2 +1
+ * :
+ * Setting of GS63 has to be > Setting of GS62 +1
+ *
+ */
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
 	unsigned long tmp[GAMMA_NUM * GAMMA_LEN];
 	int i, acc = 0;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	for (i = 0; i < 63; i++) {
 		if (i > 0 && curves[i] < 2) {
 			dev_err(par->info->device,
-				"Illegal value in Grayscale Lookup Table at index %d. " \
-				"Must be greater than 1\n", i);
+				"Illegal value in Grayscale Lookup Table at index %d. Must be greater than 1\n",
+				i);
 			return -EINVAL;
 		}
 		acc += curves[i];
 		tmp[i] = acc;
 		if (acc > 180) {
 			dev_err(par->info->device,
-				"Illegal value(s) in Grayscale Lookup Table. " \
-				"At index=%d, the accumulated value has exceeded 180\n", i);
+				"Illegal value(s) in Grayscale Lookup Table. At index=%d, the accumulated value has exceeded 180\n",
+				i);
 			return -EINVAL;
 		}
 	}
 
 	write_reg(par, 0xB8,
-	tmp[0], tmp[1], tmp[2], tmp[3], tmp[4], tmp[5], tmp[6], tmp[7],
-	tmp[8], tmp[9], tmp[10], tmp[11], tmp[12], tmp[13], tmp[14], tmp[15],
-	tmp[16], tmp[17], tmp[18], tmp[19], tmp[20], tmp[21], tmp[22], tmp[23],
-	tmp[24], tmp[25], tmp[26], tmp[27], tmp[28], tmp[29], tmp[30], tmp[31],
-	tmp[32], tmp[33], tmp[34], tmp[35], tmp[36], tmp[37], tmp[38], tmp[39],
-	tmp[40], tmp[41], tmp[42], tmp[43], tmp[44], tmp[45], tmp[46], tmp[47],
-	tmp[48], tmp[49], tmp[50], tmp[51], tmp[52], tmp[53], tmp[54], tmp[55],
-	tmp[56], tmp[57], tmp[58], tmp[59], tmp[60], tmp[61], tmp[62]);
+		  tmp[0], tmp[1], tmp[2], tmp[3], tmp[4], tmp[5], tmp[6],
+		  tmp[7], tmp[8], tmp[9], tmp[10], tmp[11], tmp[12], tmp[13],
+		  tmp[14], tmp[15], tmp[16], tmp[17], tmp[18], tmp[19], tmp[20],
+		  tmp[21], tmp[22], tmp[23], tmp[24], tmp[25], tmp[26],	tmp[27],
+		  tmp[28], tmp[29], tmp[30], tmp[31], tmp[32], tmp[33], tmp[34],
+		  tmp[35], tmp[36], tmp[37], tmp[38], tmp[39], tmp[40], tmp[41],
+		  tmp[42], tmp[43], tmp[44], tmp[45], tmp[46], tmp[47], tmp[48],
+		  tmp[49], tmp[50], tmp[51], tmp[52], tmp[53], tmp[54], tmp[55],
+		  tmp[56], tmp[57], tmp[58], tmp[59], tmp[60], tmp[61],
+		  tmp[62]);
 
 	return 0;
 }
 
 static int blank(struct fbtft_par *par, bool on)
 {
-	fbtft_par_dbg(DEBUG_BLANK, par, "%s(blank=%s)\n",
-		__func__, on ? "true" : "false");
 	if (on)
 		write_reg(par, 0xAE);
 	else
@@ -176,7 +174,6 @@ static int blank(struct fbtft_par *par, bool on)
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
diff --git a/drivers/staging/fbtft/fb_ssd1351.c b/drivers/staging/fbtft/fb_ssd1351.c
index 9bcd7a0aeed4..6736b09b2f45 100644
--- a/drivers/staging/fbtft/fb_ssd1351.c
+++ b/drivers/staging/fbtft/fb_ssd1351.c
@@ -1,9 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/backlight.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
+#include <linux/string_choices.h>
 
 #include "fbtft.h"
 
@@ -25,10 +28,8 @@ static void register_onboard_backlight(struct fbtft_par *par);
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	if (par->pdata
-		&& par->pdata->display.backlight == FBTFT_ONBOARD_BACKLIGHT) {
+	if (par->pdata &&
+	    par->pdata->display.backlight == FBTFT_ONBOARD_BACKLIGHT) {
 		/* module uses onboard GPIO for panel power */
 		par->fbtftops.register_backlight = register_onboard_backlight;
 	}
@@ -61,9 +62,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	write_reg(par, 0x15, xs, xe);
 	write_reg(par, 0x75, ys, ye);
 	write_reg(par, 0x5c);
@@ -71,15 +69,10 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	unsigned remap;
-
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
+	unsigned int remap;
 
 	if (par->fbtftops.init_display != init_display) {
 		/* don't risk messing up register A0h */
-		fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-			"%s: skipping since custom init_display() is used\n",
-			__func__);
 		return 0;
 	}
 
@@ -87,10 +80,10 @@ static int set_var(struct fbtft_par *par)
 
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0xA0, remap | 0x00 | 1<<4);
+		write_reg(par, 0xA0, remap | 0x00 | BIT(4));
 		break;
 	case 270:
-		write_reg(par, 0xA0, remap | 0x03 | 1<<4);
+		write_reg(par, 0xA0, remap | 0x03 | BIT(4));
 		break;
 	case 180:
 		write_reg(par, 0xA0, remap | 0x02);
@@ -104,68 +97,73 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-	Grayscale Lookup Table
-	GS1 - GS63
-	The driver Gamma curve contains the relative values between the entries
-	in the Lookup table.
-
-	From datasheet:
-	8.8 Gray Scale Decoder
-
-		there are total 180 Gamma Settings (Setting 0 to Setting 180)
-		available for the Gray Scale table.
-
-		The gray scale is defined in incremental way, with reference
-		to the length of previous table entry:
-			Setting of GS1 has to be >= 0
-			Setting of GS2 has to be > Setting of GS1 +1
-			Setting of GS3 has to be > Setting of GS2 +1
-			:
-			Setting of GS63 has to be > Setting of GS62 +1
-
-
-*/
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Grayscale Lookup Table
+ * GS1 - GS63
+ * The driver Gamma curve contains the relative values between the entries
+ * in the Lookup table.
+ *
+ * From datasheet:
+ * 8.8 Gray Scale Decoder
+ *
+ *	there are total 180 Gamma Settings (Setting 0 to Setting 180)
+ *	available for the Gray Scale table.
+ *
+ *	The gray scale is defined in incremental way, with reference
+ *	to the length of previous table entry:
+ *		Setting of GS1 has to be >= 0
+ *		Setting of GS2 has to be > Setting of GS1 +1
+ *		Setting of GS3 has to be > Setting of GS2 +1
+ *		:
+ *		Setting of GS63 has to be > Setting of GS62 +1
+ *
+ */
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
 	unsigned long tmp[GAMMA_NUM * GAMMA_LEN];
 	int i, acc = 0;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	for (i = 0; i < 63; i++) {
 		if (i > 0 && curves[i] < 2) {
 			dev_err(par->info->device,
-				"Illegal value in Grayscale Lookup Table at index %d. " \
-				"Must be greater than 1\n", i);
+				"Illegal value in Grayscale Lookup Table at index %d : %d. Must be greater than 1\n",
+				i, curves[i]);
 			return -EINVAL;
 		}
 		acc += curves[i];
 		tmp[i] = acc;
 		if (acc > 180) {
 			dev_err(par->info->device,
-				"Illegal value(s) in Grayscale Lookup Table. " \
-				"At index=%d, the accumulated value has exceeded 180\n", i);
+				"Illegal value(s) in Grayscale Lookup Table. At index=%d : %d, the accumulated value has exceeded 180\n",
+				i, acc);
 			return -EINVAL;
 		}
 	}
 
 	write_reg(par, 0xB8,
-	tmp[0], tmp[1], tmp[2], tmp[3], tmp[4], tmp[5], tmp[6], tmp[7],
-	tmp[8], tmp[9], tmp[10], tmp[11], tmp[12], tmp[13], tmp[14], tmp[15],
-	tmp[16], tmp[17], tmp[18], tmp[19], tmp[20], tmp[21], tmp[22], tmp[23],
-	tmp[24], tmp[25], tmp[26], tmp[27], tmp[28], tmp[29], tmp[30], tmp[31],
-	tmp[32], tmp[33], tmp[34], tmp[35], tmp[36], tmp[37], tmp[38], tmp[39],
-	tmp[40], tmp[41], tmp[42], tmp[43], tmp[44], tmp[45], tmp[46], tmp[47],
-	tmp[48], tmp[49], tmp[50], tmp[51], tmp[52], tmp[53], tmp[54], tmp[55],
-	tmp[56], tmp[57], tmp[58], tmp[59], tmp[60], tmp[61], tmp[62]);
+		  tmp[0],  tmp[1],  tmp[2],  tmp[3],
+		  tmp[4],  tmp[5],  tmp[6],  tmp[7],
+		  tmp[8],  tmp[9],  tmp[10], tmp[11],
+		  tmp[12], tmp[13], tmp[14], tmp[15],
+		  tmp[16], tmp[17], tmp[18], tmp[19],
+		  tmp[20], tmp[21], tmp[22], tmp[23],
+		  tmp[24], tmp[25], tmp[26], tmp[27],
+		  tmp[28], tmp[29], tmp[30], tmp[31],
+		  tmp[32], tmp[33], tmp[34], tmp[35],
+		  tmp[36], tmp[37], tmp[38], tmp[39],
+		  tmp[40], tmp[41], tmp[42], tmp[43],
+		  tmp[44], tmp[45], tmp[46], tmp[47],
+		  tmp[48], tmp[49], tmp[50], tmp[51],
+		  tmp[52], tmp[53], tmp[54], tmp[55],
+		  tmp[56], tmp[57], tmp[58], tmp[59],
+		  tmp[60], tmp[61], tmp[62]);
 
 	return 0;
 }
 
 static int blank(struct fbtft_par *par, bool on)
 {
-	fbtft_par_dbg(DEBUG_BLANK, par, "%s(blank=%s)\n",
-		__func__, on ? "true" : "false");
+	fbtft_par_dbg(DEBUG_BLANK, par, "(%s=%s)\n",
+		      __func__, str_true_false(on));
 	if (on)
 		write_reg(par, 0xAE);
 	else
@@ -173,7 +171,6 @@ static int blank(struct fbtft_par *par, bool on)
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -190,43 +187,35 @@ static struct fbtft_display display = {
 	},
 };
 
-#ifdef CONFIG_FB_BACKLIGHT
 static int update_onboard_backlight(struct backlight_device *bd)
 {
 	struct fbtft_par *par = bl_get_data(bd);
 	bool on;
 
-	fbtft_par_dbg(DEBUG_BACKLIGHT, par,
-		"%s: power=%d, fb_blank=%d\n",
-		__func__, bd->props.power, bd->props.fb_blank);
+	fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s: power=%d\n", __func__, bd->props.power);
 
-	on = (bd->props.power == FB_BLANK_UNBLANK)
-		&& (bd->props.fb_blank == FB_BLANK_UNBLANK);
+	on = !backlight_is_blank(bd);
 	/* Onboard backlight connected to GPIO0 on SSD1351, GPIO1 unused */
 	write_reg(par, 0xB5, on ? 0x03 : 0x02);
 
 	return 0;
 }
 
+static const struct backlight_ops bl_ops = {
+	.update_status = update_onboard_backlight,
+};
+
 static void register_onboard_backlight(struct fbtft_par *par)
 {
 	struct backlight_device *bd;
 	struct backlight_properties bl_props = { 0, };
-	struct backlight_ops *bl_ops;
 
-	fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s()\n", __func__);
-
-	bl_ops = devm_kzalloc(par->info->device, sizeof(struct backlight_ops),
-				GFP_KERNEL);
-	if (!bl_ops)
-		return;
-
-	bl_ops->update_status = update_onboard_backlight;
 	bl_props.type = BACKLIGHT_RAW;
-	bl_props.power = FB_BLANK_POWERDOWN;
+	bl_props.power = BACKLIGHT_POWER_OFF;
 
 	bd = backlight_device_register(dev_driver_string(par->info->device),
-				par->info->device, par, bl_ops, &bl_props);
+				       par->info->device, par, &bl_ops,
+				       &bl_props);
 	if (IS_ERR(bd)) {
 		dev_err(par->info->device,
 			"cannot register backlight device (%ld)\n",
@@ -238,10 +227,6 @@ static void register_onboard_backlight(struct fbtft_par *par)
 	if (!par->fbtftops.unregister_backlight)
 		par->fbtftops.unregister_backlight = fbtft_unregister_backlight;
 }
-#else
-static void register_onboard_backlight(struct fbtft_par *par) { };
-#endif
-
 
 FBTFT_REGISTER_DRIVER(DRVNAME, "solomon,ssd1351", &display);
 
diff --git a/drivers/staging/fbtft/fb_st7735r.c b/drivers/staging/fbtft/fb_st7735r.c
index f65224318610..9670a8989b91 100644
--- a/drivers/staging/fbtft/fb_st7735r.c
+++ b/drivers/staging/fbtft/fb_st7735r.c
@@ -1,26 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ST7735R LCD Controller
  *
  * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -28,46 +16,51 @@
 #define DEFAULT_GAMMA   "0F 1A 0F 18 2F 28 20 22 1F 1B 23 37 00 07 02 10\n" \
 			"0F 1B 0F 17 33 2C 29 2E 30 30 39 3F 00 07 03 10"
 
-
-static int default_init_sequence[] = {
-	/* SWRESET - Software reset */
-	-1, 0x01,
+static const s16 default_init_sequence[] = {
+	-1, MIPI_DCS_SOFT_RESET,
 	-2, 150,                               /* delay */
 
-	/* SLPOUT - Sleep out & booster on */
-	-1, 0x11,
+	-1, MIPI_DCS_EXIT_SLEEP_MODE,
 	-2, 500,                               /* delay */
 
 	/* FRMCTR1 - frame rate control: normal mode
-	     frame rate = fosc / (1 x 2 + 40) * (LINE + 2C + 2D) */
+	 * frame rate = fosc / (1 x 2 + 40) * (LINE + 2C + 2D)
+	 */
 	-1, 0xB1, 0x01, 0x2C, 0x2D,
 
 	/* FRMCTR2 - frame rate control: idle mode
-	     frame rate = fosc / (1 x 2 + 40) * (LINE + 2C + 2D) */
+	 * frame rate = fosc / (1 x 2 + 40) * (LINE + 2C + 2D)
+	 */
 	-1, 0xB2, 0x01, 0x2C, 0x2D,
 
 	/* FRMCTR3 - frame rate control - partial mode
-	     dot inversion mode, line inversion mode */
+	 * dot inversion mode, line inversion mode
+	 */
 	-1, 0xB3, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D,
 
 	/* INVCTR - display inversion control
-	     no inversion */
+	 * no inversion
+	 */
 	-1, 0xB4, 0x07,
 
 	/* PWCTR1 - Power Control
-	     -4.6V, AUTO mode */
+	 * -4.6V, AUTO mode
+	 */
 	-1, 0xC0, 0xA2, 0x02, 0x84,
 
 	/* PWCTR2 - Power Control
-	     VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD */
+	 * VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD
+	 */
 	-1, 0xC1, 0xC5,
 
 	/* PWCTR3 - Power Control
-	     Opamp current small, Boost frequency */
+	 * Opamp current small, Boost frequency
+	 */
 	-1, 0xC2, 0x0A, 0x00,
 
 	/* PWCTR4 - Power Control
-	     BCLK/2, Opamp current small & Medium low */
+	 * BCLK/2, Opamp current small & Medium low
+	 */
 	-1, 0xC3, 0x8A, 0x2A,
 
 	/* PWCTR5 - Power Control */
@@ -76,18 +69,14 @@ static int default_init_sequence[] = {
 	/* VMCTR1 - Power Control */
 	-1, 0xC5, 0x0E,
 
-	/* INVOFF - Display inversion off */
-	-1, 0x20,
+	-1, MIPI_DCS_EXIT_INVERT_MODE,
 
-	/* COLMOD - Interface pixel format */
-	-1, 0x3A, 0x05,
+	-1, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT,
 
-	/* DISPON - Display On */
-	-1, 0x29,
+	-1, MIPI_DCS_SET_DISPLAY_ON,
 	-2, 100,                               /* delay */
 
-	/* NORON - Partial off (Normal) */
-	-1, 0x13,
+	-1, MIPI_DCS_ENTER_NORMAL_MODE,
 	-2, 10,                               /* delay */
 
 	/* end marker */
@@ -96,44 +85,43 @@ static int default_init_sequence[] = {
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
-	/* Column address */
-	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Row address */
-	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
-	/* Memory write */
-	write_reg(par, 0x2C);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
-#define MY (1 << 7)
-#define MX (1 << 6)
-#define MV (1 << 5)
+#define MY BIT(7)
+#define MX BIT(6)
+#define MV BIT(5)
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* MADCTL - Memory data access control
-	     RGB/BGR:
-	     1. Mode selection pin SRGB
-		RGB H/W pin for color filter setting: 0=RGB, 1=BGR
-	     2. MADCTL RGB bit
-		RGB-BGR ORDER color filter panel: 0=RGB, 1=BGR */
+	 * RGB/BGR:
+	 * 1. Mode selection pin SRGB
+	 *    RGB H/W pin for color filter setting: 0=RGB, 1=BGR
+	 * 2. MADCTL RGB bit
+	 *    RGB-BGR ORDER color filter panel: 0=RGB, 1=BGR
+	 */
 	switch (par->info->var.rotate) {
 	case 0:
-		write_reg(par, 0x36, MX | MY | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MX | MY | (par->bgr << 3));
 		break;
 	case 270:
-		write_reg(par, 0x36, MY | MV | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MY | MV | (par->bgr << 3));
 		break;
 	case 180:
-		write_reg(par, 0x36, par->bgr << 3);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  par->bgr << 3);
 		break;
 	case 90:
-		write_reg(par, 0x36, MX | MV | (par->bgr << 3));
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+			  MX | MV | (par->bgr << 3));
 		break;
 	}
 
@@ -141,17 +129,15 @@ static int set_var(struct fbtft_par *par)
 }
 
 /*
-  Gamma string format:
-    VRF0P VOS0P PK0P PK1P PK2P PK3P PK4P PK5P PK6P PK7P PK8P PK9P SELV0P SELV1P SELV62P SELV63P
-    VRF0N VOS0N PK0N PK1N PK2N PK3N PK4N PK5N PK6N PK7N PK8N PK9N SELV0N SELV1N SELV62N SELV63N
-*/
-#define CURVE(num, idx)  curves[num*par->gamma.num_values + idx]
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+ * Gamma string format:
+ * VRF0P VOS0P PK0P PK1P PK2P PK3P PK4P PK5P PK6P PK7P PK8P PK9P SELV0P SELV1P SELV62P SELV63P
+ * VRF0N VOS0N PK0N PK1N PK2N PK3N PK4N PK5N PK6N PK7N PK8N PK9N SELV0N SELV1N SELV62N SELV63N
+ */
+#define CURVE(num, idx)  curves[(num) * par->gamma.num_values + (idx)]
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
 	int i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	for (i = 0; i < par->gamma.num_curves; i++)
 		for (j = 0; j < par->gamma.num_values; j++)
@@ -159,15 +145,19 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 	for (i = 0; i < par->gamma.num_curves; i++)
 		write_reg(par, 0xE0 + i,
-			CURVE(i, 0), CURVE(i, 1), CURVE(i, 2), CURVE(i, 3),
-			CURVE(i, 4), CURVE(i, 5), CURVE(i, 6), CURVE(i, 7),
-			CURVE(i, 8), CURVE(i, 9), CURVE(i, 10), CURVE(i, 11),
-			CURVE(i, 12), CURVE(i, 13), CURVE(i, 14), CURVE(i, 15));
+			  CURVE(i, 0),  CURVE(i, 1),
+			  CURVE(i, 2),  CURVE(i, 3),
+			  CURVE(i, 4),  CURVE(i, 5),
+			  CURVE(i, 6),  CURVE(i, 7),
+			  CURVE(i, 8),  CURVE(i, 9),
+			  CURVE(i, 10), CURVE(i, 11),
+			  CURVE(i, 12), CURVE(i, 13),
+			  CURVE(i, 14), CURVE(i, 15));
 
 	return 0;
 }
-#undef CURVE
 
+#undef CURVE
 
 static struct fbtft_display display = {
 	.regwidth = 8,
@@ -183,6 +173,7 @@ static struct fbtft_display display = {
 		.set_gamma = set_gamma,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "sitronix,st7735r", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c
new file mode 100644
index 000000000000..861a154144e6
--- /dev/null
+++ b/drivers/staging/fbtft/fb_st7789v.c
@@ -0,0 +1,394 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * FB driver for the ST7789V LCD Controller
+ *
+ * Copyright (C) 2015 Dennis Menschel
+ */
+
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/completion.h>
+#include <linux/module.h>
+
+#include <video/mipi_display.h>
+
+#include "fbtft.h"
+
+#define DRVNAME "fb_st7789v"
+
+#define DEFAULT_GAMMA \
+	"70 2C 2E 15 10 09 48 33 53 0B 19 18 20 25\n" \
+	"70 2C 2E 15 10 09 48 33 53 0B 19 18 20 25"
+
+#define HSD20_IPS_GAMMA \
+	"D0 05 0A 09 08 05 2E 44 45 0F 17 16 2B 33\n" \
+	"D0 05 0A 09 08 05 2E 43 45 0F 16 16 2B 33"
+
+#define HSD20_IPS 1
+
+/**
+ * enum st7789v_command - ST7789V display controller commands
+ *
+ * @PORCTRL: porch setting
+ * @GCTRL: gate control
+ * @VCOMS: VCOM setting
+ * @VDVVRHEN: VDV and VRH command enable
+ * @VRHS: VRH set
+ * @VDVS: VDV set
+ * @VCMOFSET: VCOM offset set
+ * @PWCTRL1: power control 1
+ * @PVGAMCTRL: positive voltage gamma control
+ * @NVGAMCTRL: negative voltage gamma control
+ *
+ * The command names are the same as those found in the datasheet to ease
+ * looking up their semantics and usage.
+ *
+ * Note that the ST7789V display controller offers quite a few more commands
+ * which have been omitted from this list as they are not used at the moment.
+ * Furthermore, commands that are compliant with the MIPI DCS have been left
+ * out as well to avoid duplicate entries.
+ */
+enum st7789v_command {
+	PORCTRL = 0xB2,
+	GCTRL = 0xB7,
+	VCOMS = 0xBB,
+	VDVVRHEN = 0xC2,
+	VRHS = 0xC3,
+	VDVS = 0xC4,
+	VCMOFSET = 0xC5,
+	PWCTRL1 = 0xD0,
+	PVGAMCTRL = 0xE0,
+	NVGAMCTRL = 0xE1,
+};
+
+#define MADCTL_BGR BIT(3) /* bitmask for RGB/BGR order */
+#define MADCTL_MV BIT(5) /* bitmask for page/column order */
+#define MADCTL_MX BIT(6) /* bitmask for column address order */
+#define MADCTL_MY BIT(7) /* bitmask for page address order */
+
+/* 60Hz for 16.6ms, configured as 2*16.6ms */
+#define PANEL_TE_TIMEOUT_MS  33
+
+static struct completion panel_te; /* completion for panel TE line */
+static int irq_te; /* Linux IRQ for LCD TE line */
+
+static irqreturn_t panel_te_handler(int irq, void *data)
+{
+	complete(&panel_te);
+	return IRQ_HANDLED;
+}
+
+/*
+ * init_tearing_effect_line() - init tearing effect line.
+ * @par: FBTFT parameter object.
+ *
+ * Return: 0 on success, or a negative error code otherwise.
+ */
+static int init_tearing_effect_line(struct fbtft_par *par)
+{
+	struct device *dev = par->info->device;
+	struct gpio_desc *te;
+	int rc, irq;
+
+	te = gpiod_get_optional(dev, "te", GPIOD_IN);
+	if (IS_ERR(te))
+		return dev_err_probe(dev, PTR_ERR(te), "Failed to request te GPIO\n");
+
+	/* if te is NULL, indicating no configuration, directly return success */
+	if (!te) {
+		irq_te = 0;
+		return 0;
+	}
+
+	irq = gpiod_to_irq(te);
+
+	/* GPIO is locked as an IRQ, we may drop the reference */
+	gpiod_put(te);
+
+	if (irq < 0)
+		return irq;
+
+	irq_te = irq;
+	init_completion(&panel_te);
+
+	/* The effective state is high and lasts no more than 1000 microseconds */
+	rc = devm_request_irq(dev, irq_te, panel_te_handler,
+			      IRQF_TRIGGER_RISING, "TE_GPIO", par);
+	if (rc)
+		return dev_err_probe(dev, rc, "TE IRQ request failed.\n");
+
+	disable_irq_nosync(irq_te);
+
+	return 0;
+}
+
+/**
+ * init_display() - initialize the display controller
+ *
+ * @par: FBTFT parameter object
+ *
+ * Most of the commands in this init function set their parameters to the
+ * same default values which are already in place after the display has been
+ * powered up. (The main exception to this rule is the pixel format which
+ * would default to 18 instead of 16 bit per pixel.)
+ * Nonetheless, this sequence can be used as a template for concrete
+ * displays which usually need some adjustments.
+ *
+ * Return: 0 on success, < 0 if error occurred.
+ */
+static int init_display(struct fbtft_par *par)
+{
+	int rc;
+
+	par->fbtftops.reset(par);
+
+	rc = init_tearing_effect_line(par);
+	if (rc)
+		return rc;
+
+	/* turn off sleep mode */
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
+	mdelay(120);
+
+	/* set pixel format to RGB-565 */
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT);
+	if (HSD20_IPS)
+		write_reg(par, PORCTRL, 0x05, 0x05, 0x00, 0x33, 0x33);
+
+	else
+		write_reg(par, PORCTRL, 0x08, 0x08, 0x00, 0x22, 0x22);
+
+	/*
+	 * VGH = 13.26V
+	 * VGL = -10.43V
+	 */
+	if (HSD20_IPS)
+		write_reg(par, GCTRL, 0x75);
+	else
+		write_reg(par, GCTRL, 0x35);
+
+	/*
+	 * VDV and VRH register values come from command write
+	 * (instead of NVM)
+	 */
+	write_reg(par, VDVVRHEN, 0x01, 0xFF);
+
+	/*
+	 * VAP =  4.1V + (VCOM + VCOM offset + 0.5 * VDV)
+	 * VAN = -4.1V + (VCOM + VCOM offset + 0.5 * VDV)
+	 */
+	if (HSD20_IPS)
+		write_reg(par, VRHS, 0x13);
+	else
+		write_reg(par, VRHS, 0x0B);
+
+	/* VDV = 0V */
+	write_reg(par, VDVS, 0x20);
+
+	/* VCOM = 0.9V */
+	if (HSD20_IPS)
+		write_reg(par, VCOMS, 0x22);
+	else
+		write_reg(par, VCOMS, 0x20);
+
+	/* VCOM offset = 0V */
+	write_reg(par, VCMOFSET, 0x20);
+
+	/*
+	 * AVDD = 6.8V
+	 * AVCL = -4.8V
+	 * VDS = 2.3V
+	 */
+	write_reg(par, PWCTRL1, 0xA4, 0xA1);
+
+	/* TE line output is off by default when powering on */
+	if (irq_te)
+		write_reg(par, MIPI_DCS_SET_TEAR_ON, 0x00);
+
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
+
+	if (HSD20_IPS)
+		write_reg(par, MIPI_DCS_ENTER_INVERT_MODE);
+
+	return 0;
+}
+
+/*
+ * write_vmem() - write data to display.
+ * @par: FBTFT parameter object.
+ * @offset: offset from screen_buffer.
+ * @len: the length of data to be writte.
+ *
+ * Return: 0 on success, or a negative error code otherwise.
+ */
+static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
+{
+	struct device *dev = par->info->device;
+	int ret;
+
+	if (irq_te) {
+		enable_irq(irq_te);
+		reinit_completion(&panel_te);
+		ret = wait_for_completion_timeout(&panel_te,
+						  msecs_to_jiffies(PANEL_TE_TIMEOUT_MS));
+		if (ret == 0)
+			dev_err(dev, "wait panel TE timeout\n");
+
+		disable_irq(irq_te);
+	}
+
+	switch (par->pdata->display.buswidth) {
+	case 8:
+		ret = fbtft_write_vmem16_bus8(par, offset, len);
+		break;
+	case 9:
+		ret = fbtft_write_vmem16_bus9(par, offset, len);
+		break;
+	case 16:
+		ret = fbtft_write_vmem16_bus16(par, offset, len);
+		break;
+	default:
+		dev_err(dev, "Unsupported buswidth %d\n",
+			par->pdata->display.buswidth);
+		ret = 0;
+		break;
+	}
+
+	return ret;
+}
+
+/**
+ * set_var() - apply LCD properties like rotation and BGR mode
+ *
+ * @par: FBTFT parameter object
+ *
+ * Return: 0 on success, < 0 if error occurred.
+ */
+static int set_var(struct fbtft_par *par)
+{
+	u8 madctl_par = 0;
+
+	if (par->bgr)
+		madctl_par |= MADCTL_BGR;
+	switch (par->info->var.rotate) {
+	case 0:
+		break;
+	case 90:
+		madctl_par |= (MADCTL_MV | MADCTL_MY);
+		break;
+	case 180:
+		madctl_par |= (MADCTL_MX | MADCTL_MY);
+		break;
+	case 270:
+		madctl_par |= (MADCTL_MV | MADCTL_MX);
+		break;
+	default:
+		return -EINVAL;
+	}
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, madctl_par);
+	return 0;
+}
+
+/**
+ * set_gamma() - set gamma curves
+ *
+ * @par: FBTFT parameter object
+ * @curves: gamma curves
+ *
+ * Before the gamma curves are applied, they are preprocessed with a bitmask
+ * to ensure syntactically correct input for the display controller.
+ * This implies that the curves input parameter might be changed by this
+ * function and that illegal gamma values are auto-corrected and not
+ * reported as errors.
+ *
+ * Return: 0 on success, < 0 if error occurred.
+ */
+static int set_gamma(struct fbtft_par *par, u32 *curves)
+{
+	int i;
+	int j;
+	int c; /* curve index offset */
+
+	/*
+	 * Bitmasks for gamma curve command parameters.
+	 * The masks are the same for both positive and negative voltage
+	 * gamma curves.
+	 */
+	static const u8 gamma_par_mask[] = {
+		0xFF, /* V63[3:0], V0[3:0]*/
+		0x3F, /* V1[5:0] */
+		0x3F, /* V2[5:0] */
+		0x1F, /* V4[4:0] */
+		0x1F, /* V6[4:0] */
+		0x3F, /* J0[1:0], V13[3:0] */
+		0x7F, /* V20[6:0] */
+		0x77, /* V36[2:0], V27[2:0] */
+		0x7F, /* V43[6:0] */
+		0x3F, /* J1[1:0], V50[3:0] */
+		0x1F, /* V57[4:0] */
+		0x1F, /* V59[4:0] */
+		0x3F, /* V61[5:0] */
+		0x3F, /* V62[5:0] */
+	};
+
+	for (i = 0; i < par->gamma.num_curves; i++) {
+		c = i * par->gamma.num_values;
+		for (j = 0; j < par->gamma.num_values; j++)
+			curves[c + j] &= gamma_par_mask[j];
+		write_reg(par, PVGAMCTRL + i,
+			  curves[c + 0],  curves[c + 1],  curves[c + 2],
+			  curves[c + 3],  curves[c + 4],  curves[c + 5],
+			  curves[c + 6],  curves[c + 7],  curves[c + 8],
+			  curves[c + 9],  curves[c + 10], curves[c + 11],
+			  curves[c + 12], curves[c + 13]);
+	}
+	return 0;
+}
+
+/**
+ * blank() - blank the display
+ *
+ * @par: FBTFT parameter object
+ * @on: whether to enable or disable blanking the display
+ *
+ * Return: 0 on success, < 0 if error occurred.
+ */
+static int blank(struct fbtft_par *par, bool on)
+{
+	if (on)
+		write_reg(par, MIPI_DCS_SET_DISPLAY_OFF);
+	else
+		write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
+	return 0;
+}
+
+static struct fbtft_display display = {
+	.regwidth = 8,
+	.width = 240,
+	.height = 320,
+	.gamma_num = 2,
+	.gamma_len = 14,
+	.gamma = HSD20_IPS_GAMMA,
+	.fbtftops = {
+		.init_display = init_display,
+		.write_vmem = write_vmem,
+		.set_var = set_var,
+		.set_gamma = set_gamma,
+		.blank = blank,
+	},
+};
+
+FBTFT_REGISTER_DRIVER(DRVNAME, "sitronix,st7789v", &display);
+
+MODULE_ALIAS("spi:" DRVNAME);
+MODULE_ALIAS("platform:" DRVNAME);
+MODULE_ALIAS("spi:st7789v");
+MODULE_ALIAS("platform:st7789v");
+
+MODULE_DESCRIPTION("FB driver for the ST7789V LCD Controller");
+MODULE_AUTHOR("Dennis Menschel");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fb_tinylcd.c b/drivers/staging/fbtft/fb_tinylcd.c
index 4c740b7e9f53..9469248f2c50 100644
--- a/drivers/staging/fbtft/fb_tinylcd.c
+++ b/drivers/staging/fbtft/fb_tinylcd.c
@@ -1,27 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Custom FB driver for tinylcd.com display
  *
  * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -29,11 +17,8 @@
 #define WIDTH		320
 #define HEIGHT		480
 
-
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	write_reg(par, 0xB0, 0x80);
@@ -45,7 +30,7 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0xB4, 0x02);
 	write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
 	write_reg(par, 0xB7, 0x07);
-	write_reg(par, 0x36, 0x58);
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x58);
 	write_reg(par, 0xF0, 0x36, 0xA5, 0xD3);
 	write_reg(par, 0xE5, 0x80);
 	write_reg(par, 0xE5, 0x01);
@@ -53,57 +38,50 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0xE5, 0x00);
 	write_reg(par, 0xF0, 0x36, 0xA5, 0x53);
 	write_reg(par, 0xE0, 0x00, 0x35, 0x33, 0x00, 0x00, 0x00,
-			     0x00, 0x35, 0x33, 0x00, 0x00, 0x00);
-	write_reg(par, 0x3A, 0x55);
-	write_reg(par, 0x11);
+		       0x00, 0x35, 0x33, 0x00, 0x00, 0x00);
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
 	udelay(250);
-	write_reg(par, 0x29);
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 
 	return 0;
 }
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-	/* Column address */
-	write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
-	/* Row address */
-	write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
-
-	/* Memory write */
-	write_reg(par, 0x2C);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	case 270:
 		write_reg(par, 0xB6, 0x00, 0x02, 0x3B);
-		write_reg(par, 0x36, 0x28);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x28);
 		break;
 	case 180:
 		write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
-		write_reg(par, 0x36, 0x58);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x58);
 		break;
 	case 90:
 		write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
-		write_reg(par, 0x36, 0x38);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x38);
 		break;
 	default:
 		write_reg(par, 0xB6, 0x00, 0x22, 0x3B);
-		write_reg(par, 0x36, 0x08);
+		write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0x08);
 		break;
 	}
 
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -114,6 +92,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "neosec,tinylcd", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_tls8204.c b/drivers/staging/fbtft/fb_tls8204.c
index 3253a25e9184..bec6dd0ffb01 100644
--- a/drivers/staging/fbtft/fb_tls8204.c
+++ b/drivers/staging/fbtft/fb_tls8204.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the TLS8204 LCD Controller
  *
@@ -6,26 +7,12 @@
  *
  * Copyright (C) 2013 Noralf Tronnes
  * Copyright (C) 2014 Michael Hope (adapted for the TLS8204)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 
@@ -39,32 +26,30 @@
 /* gamma is used to control contrast in this driver */
 #define DEFAULT_GAMMA	"40"
 
-static unsigned bs = 4;
-module_param(bs, uint, 0);
+static unsigned int bs = 4;
+module_param(bs, uint, 0000);
 MODULE_PARM_DESC(bs, "BS[2:0] Bias voltage level: 0-7 (default: 4)");
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	/* Enter extended command mode */
-	write_reg(par, 0x21); /* 5:1  1
-				 2:0  PD - Powerdown control: chip is active
-				 1:0  V  - Entry mode: horizontal addressing
-				 0:1  H  - Extended instruction set control:
-						extended
-			      */
+	write_reg(par, 0x21);	/* 5:1  1
+				 * 2:0  PD - Powerdown control: chip is active
+				 * 1:0  V  - Entry mode: horizontal addressing
+				 * 0:1  H  - Extended instruction set control:
+				 *	     extended
+				 */
 
 	/* H=1 Bias system */
-	write_reg(par, 0x10 | (bs & 0x7)); /*
-				 4:1  1
-				 3:0  0
-				 2:x  BS2 - Bias System
-				 1:x  BS1
-				 0:x  BS0
-			      */
+	write_reg(par, 0x10 | (bs & 0x7));
+				/* 4:1  1
+				 * 3:0  0
+				 * 2:x  BS2 - Bias System
+				 * 1:x  BS1
+				 * 0:x  BS0
+				 */
 
 	/* Set the address of the first display line. */
 	write_reg(par, 0x04 | (64 >> 6));
@@ -74,62 +59,57 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0x20);
 
 	/* H=0 Display control */
-	write_reg(par, 0x08 | 4); /*
-				 3:1  1
-				 2:1  D  - DE: 10=normal mode
-				 1:0  0
-				 0:0  E
-			      */
+	write_reg(par, 0x08 | 4);
+				/* 3:1  1
+				 * 2:1  D - DE: 10=normal mode
+				 * 1:0  0
+				 * 0:0  E
+				 */
 
 	return 0;
 }
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		      "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n",
-		      __func__, xs, ys, xe, ye);
-
 	/* H=0 Set X address of RAM */
-	write_reg(par, 0x80); /* 7:1  1
-				 6-0: X[6:0] - 0x00
-			      */
+	write_reg(par, 0x80);	/* 7:1  1
+				 * 6-0: X[6:0] - 0x00
+				 */
 
 	/* H=0 Set Y address of RAM */
-	write_reg(par, 0x40); /* 7:0  0
-				 6:1  1
-				 2-0: Y[2:0] - 0x0
-			      */
+	write_reg(par, 0x40);	/* 7:0  0
+				 * 6:1  1
+				 * 2-0: Y[2:0] - 0x0
+				 */
 }
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	int x, y, i;
 	int ret = 0;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
-	for (y = 0; y < HEIGHT/8; y++) {
+	for (y = 0; y < HEIGHT / 8; y++) {
 		u8 *buf = par->txbuf.buf;
-		/* The display is 102x68 but the LCD is 84x48.  Set
-		   the write pointer at the start of each row. */
-		gpio_set_value(par->gpio.dc, 0);
+		/* The display is 102x68 but the LCD is 84x48.
+		 * Set the write pointer at the start of each row.
+		 */
+		gpiod_set_value(par->gpio.dc, 0);
 		write_reg(par, 0x80 | 0);
 		write_reg(par, 0x40 | y);
 
 		for (x = 0; x < WIDTH; x++) {
 			u8 ch = 0;
 
-			for (i = 0; i < 8*WIDTH; i += WIDTH) {
+			for (i = 0; i < 8 * WIDTH; i += WIDTH) {
 				ch >>= 1;
-				if (vmem16[(y*8*WIDTH)+i+x])
+				if (vmem16[(y * 8 * WIDTH) + i + x])
 					ch |= 0x80;
 			}
 			*buf++ = ch;
 		}
 		/* Write the row */
-		gpio_set_value(par->gpio.dc, 1);
+		gpiod_set_value(par->gpio.dc, 1);
 		ret = par->fbtftops.write(par, par->txbuf.buf, WIDTH);
 		if (ret < 0) {
 			dev_err(par->info->device,
@@ -141,10 +121,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	return ret;
 }
 
-static int set_gamma(struct fbtft_par *par, unsigned long *curves)
+static int set_gamma(struct fbtft_par *par, u32 *curves)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* apply mask */
 	curves[0] &= 0x7F;
 
@@ -155,7 +133,6 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 	return 0;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -172,6 +149,7 @@ static struct fbtft_display display = {
 	},
 	.backlight = 1,
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "teralane,tls8204", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_uc1611.c b/drivers/staging/fbtft/fb_uc1611.c
index 32f3a9d921d6..ca35b386a12d 100644
--- a/drivers/staging/fbtft/fb_uc1611.c
+++ b/drivers/staging/fbtft/fb_uc1611.c
@@ -1,25 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the UltraChip UC1611 LCD controller
  *
  * The display is 4-bit grayscale (16 shades) 240x160.
  *
  * Copyright (C) 2015 Henri Chain
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 
@@ -41,44 +32,48 @@
  */
 
 /* BR -> actual ratio: 0-3 -> 5, 10, 11, 13 */
-static unsigned ratio = 2;
-module_param(ratio, uint, 0);
+static unsigned int ratio = 2;
+module_param(ratio, uint, 0000);
 MODULE_PARM_DESC(ratio, "BR[1:0] Bias voltage ratio: 0-3 (default: 2)");
 
-static unsigned gain = 3;
-module_param(gain, uint, 0);
+static unsigned int gain = 3;
+module_param(gain, uint, 0000);
 MODULE_PARM_DESC(gain, "GN[1:0] Bias voltage gain: 0-3 (default: 3)");
 
-static unsigned pot = 16;
-module_param(pot, uint, 0);
+static unsigned int pot = 16;
+module_param(pot, uint, 0000);
 MODULE_PARM_DESC(pot, "PM[6:0] Bias voltage pot.: 0-63 (default: 16)");
 
 /* TC -> % compensation per deg C: 0-3 -> -.05, -.10, -.015, -.20 */
-static unsigned temp;
-module_param(temp, uint, 0);
+static unsigned int temp;
+module_param(temp, uint, 0000);
 MODULE_PARM_DESC(temp, "TC[1:0] Temperature compensation: 0-3 (default: 0)");
 
 /* PC[1:0] -> LCD capacitance: 0-3 -> <20nF, 20-28 nF, 29-40 nF, 40-56 nF */
-static unsigned load = 1;
-module_param(load, uint, 0);
+static unsigned int load = 1;
+module_param(load, uint, 0000);
 MODULE_PARM_DESC(load, "PC[1:0] Panel Loading: 0-3 (default: 1)");
 
 /* PC[3:2] -> V_LCD: 0, 1, 3 -> ext., int. with ratio = 5, int. standard */
-static unsigned pump = 3;
-module_param(pump, uint, 0);
+static unsigned int pump = 3;
+module_param(pump, uint, 0000);
 MODULE_PARM_DESC(pump, "PC[3:2] Pump control: 0,1,3 (default: 3)");
 
 static int init_display(struct fbtft_par *par)
 {
 	int ret;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	/* Set CS active high */
-	par->spi->mode |= SPI_CS_HIGH;
-	ret = par->spi->master->setup(par->spi);
+	/*
+	 * Set CS active inverse polarity: just setting SPI_CS_HIGH does not
+	 * work with GPIO based chip selects that are logically active high
+	 * but inverted inside the GPIO library, so enforce inverted
+	 * semantics.
+	 */
+	par->spi->mode ^= SPI_CS_HIGH;
+	ret = spi_setup(par->spi);
 	if (ret) {
-		dev_err(par->info->device, "Could not set SPI_CS_HIGH\n");
+		dev_err(par->info->device,
+			"Could not set inverse CS polarity\n");
 		return ret;
 	}
 
@@ -102,7 +97,7 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, 0x2C | (pump & 0x03));
 
 	/* Set inverse display */
-	write_reg(par, 0xA6 | (0x01 & 0x01));
+	write_reg(par, 0xA6 | 0x01);
 
 	/* Set 4-bit grayscale mode */
 	write_reg(par, 0xD0 | (0x02 & 0x03));
@@ -115,10 +110,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		      "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n",
-		      __func__, xs, ys, xe, ye);
-
 	switch (par->info->var.rotate) {
 	case 90:
 	case 270:
@@ -144,9 +135,6 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int blank(struct fbtft_par *par, bool on)
 {
-	fbtft_par_dbg(DEBUG_BLANK, par, "%s(blank=%s)\n",
-		      __func__, on ? "true" : "false");
-
 	if (on)
 		write_reg(par, 0xA8 | 0x00);
 	else
@@ -156,8 +144,6 @@ static int blank(struct fbtft_par *par, bool on)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* par->info->fix.visual = FB_VISUAL_PSEUDOCOLOR; */
 	par->info->var.grayscale = 1;
 	par->info->var.red.offset    = 0;
@@ -174,8 +160,8 @@ static int set_var(struct fbtft_par *par)
 		/* Set RAM address control */
 		write_reg(par, 0x88
 			| (0x0 & 0x1) << 2 /* Increment positively */
-			| (0x1 & 0x1) << 1 /* Increment page first */
-			| (0x1 & 0x1));    /* Wrap around (default) */
+			| (0x1 << 1)	   /* Increment page first */
+			| 0x1);		   /* Wrap around (default) */
 
 		/* Set LCD mapping */
 		write_reg(par, 0xC0
@@ -188,11 +174,11 @@ static int set_var(struct fbtft_par *par)
 		write_reg(par, 0x88
 			| (0x0 & 0x1) << 2 /* Increment positively */
 			| (0x0 & 0x1) << 1 /* Increment column first */
-			| (0x1 & 0x1));    /* Wrap around (default) */
+			| 0x1);		   /* Wrap around (default) */
 
 		/* Set LCD mapping */
 		write_reg(par, 0xC0
-			| (0x1 & 0x1) << 2 /* Mirror Y ON */
+			| (0x1 << 2)	   /* Mirror Y ON */
 			| (0x0 & 0x1) << 1 /* Mirror X OFF */
 			| (0x0 & 0x1));    /* MS nibble last (default) */
 		break;
@@ -200,13 +186,13 @@ static int set_var(struct fbtft_par *par)
 		/* Set RAM address control */
 		write_reg(par, 0x88
 			| (0x0 & 0x1) << 2 /* Increment positively */
-			| (0x1 & 0x1) << 1 /* Increment page first */
-			| (0x1 & 0x1));    /* Wrap around (default) */
+			| (0x1 << 1)	   /* Increment page first */
+			| 0x1);		   /* Wrap around (default) */
 
 		/* Set LCD mapping */
 		write_reg(par, 0xC0
-			| (0x1 & 0x1) << 2 /* Mirror Y ON */
-			| (0x1 & 0x1) << 1 /* Mirror X ON */
+			| (0x1 << 2)	   /* Mirror Y ON */
+			| (0x1 << 1)	   /* Mirror X ON */
 			| (0x0 & 0x1));    /* MS nibble last (default) */
 		break;
 	default:
@@ -214,12 +200,12 @@ static int set_var(struct fbtft_par *par)
 		write_reg(par, 0x88
 			| (0x0 & 0x1) << 2 /* Increment positively */
 			| (0x0 & 0x1) << 1 /* Increment column first */
-			| (0x1 & 0x1));    /* Wrap around (default) */
+			| 0x1);		   /* Wrap around (default) */
 
 		/* Set LCD mapping */
 		write_reg(par, 0xC0
 			| (0x0 & 0x1) << 2 /* Mirror Y OFF */
-			| (0x1 & 0x1) << 1 /* Mirror X ON */
+			| (0x1 << 1)	   /* Mirror X ON */
 			| (0x0 & 0x1));    /* MS nibble last (default) */
 		break;
 	}
@@ -229,17 +215,15 @@ static int set_var(struct fbtft_par *par)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u8 *vmem8 = (u8 *)(par->info->screen_base);
-	u8 *buf8 = (u8 *)(par->txbuf.buf);
-	u16 *buf16 = (u16 *)(par->txbuf.buf);
+	u8 *vmem8 = (u8 *)(par->info->screen_buffer);
+	u8 *buf8 = par->txbuf.buf;
+	u16 *buf16 = par->txbuf.buf;
 	int line_length = par->info->fix.line_length;
-	int y_start = (offset / line_length);
+	int y_start = offset / line_length;
 	int y_end = (offset + len - 1) / line_length;
 	int x, y, i;
 	int ret = 0;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
 	switch (par->pdata->display.buswidth) {
 	case 8:
 		switch (par->info->var.rotate) {
@@ -270,7 +254,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 			}
 			break;
 		}
-		gpio_set_value(par->gpio.dc, 1);
+		gpiod_set_value(par->gpio.dc, 1);
 
 		/* Write data */
 		ret = par->fbtftops.write(par, par->txbuf.buf, len / 2);
diff --git a/drivers/staging/fbtft/fb_uc1701.c b/drivers/staging/fbtft/fb_uc1701.c
index 26d669b57916..e4ccc73868a7 100644
--- a/drivers/staging/fbtft/fb_uc1701.c
+++ b/drivers/staging/fbtft/fb_uc1701.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the UC1701 LCD Controller
  *
@@ -5,26 +6,12 @@
  * Any pixel value except 0 turns the pixel on.
  *
  * Copyright (C) 2014 Juergen Holzmann
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 
@@ -33,7 +20,7 @@
 #define DRVNAME	"fb_uc1701"
 #define WIDTH	  102
 #define HEIGHT	 64
-#define PAGES	  (HEIGHT/8)
+#define PAGES	  (HEIGHT / 8)
 
 /* 1: Display on/off */
 #define LCD_DISPLAY_ENABLE    0xAE
@@ -73,11 +60,8 @@
 /* column offset for bottom view orientation */
 #define SHIFT_ADDR_TOPVIEW    30
 
-
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
 	/* softreset of LCD */
@@ -85,11 +69,11 @@ static int init_display(struct fbtft_par *par)
 	mdelay(10);
 
 	/* set startpoint */
-	/* LCD_START_LINE | (pos & 0x3F) */
 	write_reg(par, LCD_START_LINE);
 
 	/* select orientation BOTTOMVIEW */
 	write_reg(par, LCD_BOTTOMVIEW | 1);
+
 	/* output mode select (turns display upside-down) */
 	write_reg(par, LCD_SCAN_DIR | 0x00);
 
@@ -103,25 +87,19 @@ static int init_display(struct fbtft_par *par)
 	write_reg(par, LCD_BIAS | 0);
 
 	/* power control mode: all features on */
-	/* LCD_POWER_CONTROL | (val&0x07) */
 	write_reg(par, LCD_POWER_CONTROL | 0x07);
 
 	/* set voltage regulator R/R */
-	/* LCD_VOLTAGE | (val&0x07) */
 	write_reg(par, LCD_VOLTAGE | 0x07);
 
 	/* volume mode set */
-	/* LCD_VOLUME_MODE,val&0x3f,LCD_NO_OP */
 	write_reg(par, LCD_VOLUME_MODE);
-	/* LCD_VOLUME_MODE,val&0x3f,LCD_NO_OP */
 	write_reg(par, 0x09);
-	/* ???? */
-	/* LCD_VOLUME_MODE,val&0x3f,LCD_NO_OP */
 	write_reg(par, LCD_NO_OP);
 
 	/* advanced program control */
 	write_reg(par, LCD_ADV_PROG_CTRL);
-	write_reg(par, LCD_ADV_PROG_CTRL2|LCD_TEMPCOMP_HIGH);
+	write_reg(par, LCD_ADV_PROG_CTRL2 | LCD_TEMPCOMP_HIGH);
 
 	/* enable display */
 	write_reg(par, LCD_DISPLAY_ENABLE | 1);
@@ -131,55 +109,36 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par, "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
 	/* goto address */
-	/* LCD_PAGE_ADDRESS | ((page) & 0x1F),
-	 (((col)+SHIFT_ADDR_NORMAL) & 0x0F),
-	 LCD_COL_ADDRESS | ((((col)+SHIFT_ADDR_NORMAL)>>4) & 0x0F) */
 	write_reg(par, LCD_PAGE_ADDRESS);
-	/* LCD_PAGE_ADDRESS | ((page) & 0x1F),
-	 (((col)+SHIFT_ADDR_NORMAL) & 0x0F),
-	  LCD_COL_ADDRESS | ((((col)+SHIFT_ADDR_NORMAL)>>4) & 0x0F) */
 	write_reg(par, 0x00);
-	/* LCD_PAGE_ADDRESS | ((page) & 0x1F),
-	 (((col)+SHIFT_ADDR_NORMAL) & 0x0F),
-	  LCD_COL_ADDRESS | ((((col)+SHIFT_ADDR_NORMAL)>>4) & 0x0F) */
 	write_reg(par, LCD_COL_ADDRESS);
 }
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
-	u8 *buf = par->txbuf.buf;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
+	u8 *buf;
 	int x, y, i;
 	int ret = 0;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
 	for (y = 0; y < PAGES; y++) {
 		buf = par->txbuf.buf;
 		for (x = 0; x < WIDTH; x++) {
 			*buf = 0x00;
 			for (i = 0; i < 8; i++)
-				*buf |= (vmem16[((y*8*WIDTH)+(i*WIDTH))+x] ? 1 : 0) << i;
+				*buf |= (vmem16[((y * 8 * WIDTH) +
+						 (i * WIDTH)) + x] ?
+					 1 : 0) << i;
 			buf++;
 		}
-		/* LCD_PAGE_ADDRESS | ((page) & 0x1F),
-		 (((col)+SHIFT_ADDR_NORMAL) & 0x0F),
-		  LCD_COL_ADDRESS | ((((col)+SHIFT_ADDR_NORMAL)>>4) & 0x0F) */
-		write_reg(par, LCD_PAGE_ADDRESS|(u8)y);
-		/* LCD_PAGE_ADDRESS | ((page) & 0x1F),
-		 (((col)+SHIFT_ADDR_NORMAL) & 0x0F),
-		  LCD_COL_ADDRESS | ((((col)+SHIFT_ADDR_NORMAL)>>4) & 0x0F) */
+
+		write_reg(par, LCD_PAGE_ADDRESS | (u8)y);
 		write_reg(par, 0x00);
-		/* LCD_PAGE_ADDRESS | ((page) & 0x1F),
-		 (((col)+SHIFT_ADDR_NORMAL) & 0x0F),
-		  LCD_COL_ADDRESS | ((((col)+SHIFT_ADDR_NORMAL)>>4) & 0x0F) */
 		write_reg(par, LCD_COL_ADDRESS);
-		gpio_set_value(par->gpio.dc, 1);
+		gpiod_set_value(par->gpio.dc, 1);
 		ret = par->fbtftops.write(par, par->txbuf.buf, WIDTH);
-		gpio_set_value(par->gpio.dc, 0);
+		gpiod_set_value(par->gpio.dc, 0);
 	}
 
 	if (ret < 0)
@@ -189,7 +148,6 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	return ret;
 }
 
-
 static struct fbtft_display display = {
 	.regwidth = 8,
 	.width = WIDTH,
@@ -201,6 +159,7 @@ static struct fbtft_display display = {
 	},
 	.backlight = 1,
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "UltraChip,uc1701", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_upd161704.c b/drivers/staging/fbtft/fb_upd161704.c
index 176c2106d724..c680160d6380 100644
--- a/drivers/staging/fbtft/fb_upd161704.c
+++ b/drivers/staging/fbtft/fb_upd161704.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the uPD161704 LCD Controller
  *
@@ -6,26 +7,11 @@
  * Based on fb_ili9325.c by Noralf Tronnes
  * Based on ili9325.c by Jeroen Domburg
  * Init code from UTFT library by Henning Karlsen
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
 #include <linux/delay.h>
 
 #include "fbtft.h"
@@ -37,13 +23,8 @@
 
 static int init_display(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	par->fbtftops.reset(par);
 
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
-
 	/* Initialization sequence from Lib_UTFT */
 
 	/* register reset */
@@ -131,8 +112,6 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
 	switch (par->info->var.rotate) {
 	/* R20h = Horizontal GRAM Start Address */
 	/* R21h = Vertical GRAM Start Address */
@@ -159,8 +138,6 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int set_var(struct fbtft_par *par)
 {
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	switch (par->info->var.rotate) {
 	/* AM: GRAM update direction */
 	case 0:
@@ -194,6 +171,7 @@ static struct fbtft_display display = {
 		.set_var = set_var,
 	},
 };
+
 FBTFT_REGISTER_DRIVER(DRVNAME, "nec,upd161704", &display);
 
 MODULE_ALIAS("spi:" DRVNAME);
diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c
deleted file mode 100644
index 88fb2c0132d5..000000000000
--- a/drivers/staging/fbtft/fb_watterott.c
+++ /dev/null
@@ -1,324 +0,0 @@
-/*
- * FB driver for the Watterott LCD Controller
- *
- * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-
-#include "fbtft.h"
-
-#define DRVNAME			"fb_watterott"
-#define WIDTH			320
-#define HEIGHT			240
-#define FPS			5
-#define TXBUFLEN		1024
-#define DEFAULT_BRIGHTNESS	50
-
-#define CMD_VERSION		0x01
-#define CMD_LCD_LED		0x10
-#define CMD_LCD_RESET		0x11
-#define CMD_LCD_ORIENTATION	0x20
-#define CMD_LCD_DRAWIMAGE	0x27
-#define COLOR_RGB323		8
-#define COLOR_RGB332		9
-#define COLOR_RGB233		10
-#define COLOR_RGB565		16
-
-
-static short mode = 565;
-module_param(mode, short, 0);
-MODULE_PARM_DESC(mode, "RGB color transfer mode: 332, 565 (default)");
-
-static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
-{
-	va_list args;
-	int i, ret;
-	u8 *buf = par->buf;
-
-	va_start(args, len);
-	for (i = 0; i < len; i++)
-		*buf++ = (u8)va_arg(args, unsigned int);
-	va_end(args);
-
-	fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par,
-		par->info->device, u8, par->buf, len, "%s: ", __func__);
-
-	ret = par->fbtftops.write(par, par->buf, len);
-	if (ret < 0) {
-		dev_err(par->info->device,
-			"write() failed and returned %d\n", ret);
-		return;
-	}
-}
-
-static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
-{
-	unsigned start_line, end_line;
-	u16 *vmem16 = (u16 *)(par->info->screen_base + offset);
-	u16 *pos = par->txbuf.buf + 1;
-	u16 *buf16 = par->txbuf.buf + 10;
-	int i, j;
-	int ret = 0;
-
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
-	start_line = offset / par->info->fix.line_length;
-	end_line = start_line + (len / par->info->fix.line_length) - 1;
-
-	/* Set command header. pos: x, y, w, h */
-	((u8 *)par->txbuf.buf)[0] = CMD_LCD_DRAWIMAGE;
-	pos[0] = 0;
-	pos[2] = cpu_to_be16(par->info->var.xres);
-	pos[3] = cpu_to_be16(1);
-	((u8 *)par->txbuf.buf)[9] = COLOR_RGB565;
-
-	for (i = start_line; i <= end_line; i++) {
-		pos[1] = cpu_to_be16(i);
-		for (j = 0; j < par->info->var.xres; j++)
-			buf16[j] = cpu_to_be16(*vmem16++);
-		ret = par->fbtftops.write(par,
-			par->txbuf.buf, 10 + par->info->fix.line_length);
-		if (ret < 0)
-			return ret;
-		udelay(300);
-	}
-
-	return 0;
-}
-
-#define RGB565toRGB323(c) (((c&0xE000)>>8) | ((c&0600)>>6) | ((c&0x001C)>>2))
-#define RGB565toRGB332(c) (((c&0xE000)>>8) | ((c&0700)>>6) | ((c&0x0018)>>3))
-#define RGB565toRGB233(c) (((c&0xC000)>>8) | ((c&0700)>>5) | ((c&0x001C)>>2))
-
-static int write_vmem_8bit(struct fbtft_par *par, size_t offset, size_t len)
-{
-	unsigned start_line, end_line;
-	u16 *vmem16 = (u16 *)(par->info->screen_base + offset);
-	u16 *pos = par->txbuf.buf + 1;
-	u8 *buf8 = par->txbuf.buf + 10;
-	int i, j;
-	int ret = 0;
-
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s()\n", __func__);
-
-	start_line = offset / par->info->fix.line_length;
-	end_line = start_line + (len / par->info->fix.line_length) - 1;
-
-	/* Set command header. pos: x, y, w, h */
-	((u8 *)par->txbuf.buf)[0] = CMD_LCD_DRAWIMAGE;
-	pos[0] = 0;
-	pos[2] = cpu_to_be16(par->info->var.xres);
-	pos[3] = cpu_to_be16(1);
-	((u8 *)par->txbuf.buf)[9] = COLOR_RGB332;
-
-	for (i = start_line; i <= end_line; i++) {
-		pos[1] = cpu_to_be16(i);
-		for (j = 0; j < par->info->var.xres; j++) {
-			buf8[j] = RGB565toRGB332(*vmem16);
-			vmem16++;
-		}
-		ret = par->fbtftops.write(par,
-			par->txbuf.buf, 10 + par->info->var.xres);
-		if (ret < 0)
-			return ret;
-		udelay(700);
-	}
-
-	return 0;
-}
-
-static unsigned firmware_version(struct fbtft_par *par)
-{
-	u8 rxbuf[4] = {0, };
-
-	write_reg(par, CMD_VERSION);
-	par->fbtftops.read(par, rxbuf, 4);
-	if (rxbuf[1] != '.')
-		return 0;
-
-	return (rxbuf[0] - '0') << 8 | (rxbuf[2] - '0') << 4 | (rxbuf[3] - '0');
-}
-
-static int init_display(struct fbtft_par *par)
-{
-	int ret;
-	unsigned version;
-	u8 save_mode;
-
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	/* enable SPI interface by having CS and MOSI low during reset */
-	save_mode = par->spi->mode;
-	par->spi->mode |= SPI_CS_HIGH;
-	ret = par->spi->master->setup(par->spi); /* set CS inactive low */
-	if (ret) {
-		dev_err(par->info->device, "Could not set SPI_CS_HIGH\n");
-		return ret;
-	}
-	write_reg(par, 0x00); /* make sure mode is set */
-
-	mdelay(50);
-	par->fbtftops.reset(par);
-	mdelay(1000);
-	par->spi->mode = save_mode;
-	ret = par->spi->master->setup(par->spi);
-	if (ret) {
-		dev_err(par->info->device, "Could not restore SPI mode\n");
-		return ret;
-	}
-	write_reg(par, 0x00);
-
-	version = firmware_version(par);
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "Firmware version: %x.%02x\n",
-						version >> 8, version & 0xFF);
-
-	if (mode == 332)
-		par->fbtftops.write_vmem = write_vmem_8bit;
-	return 0;
-}
-
-static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
-{
-	/* not used on this controller */
-}
-
-static int set_var(struct fbtft_par *par)
-{
-	u8 rotate;
-
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	/* this controller rotates clock wise */
-	switch (par->info->var.rotate) {
-	case 90:
-		rotate = 27;
-		break;
-	case 180:
-		rotate = 18;
-		break;
-	case 270:
-		rotate = 9;
-		break;
-	default:
-		rotate = 0;
-	}
-	write_reg(par, CMD_LCD_ORIENTATION, rotate);
-
-	return 0;
-}
-
-static int verify_gpios(struct fbtft_par *par)
-{
-	if (par->gpio.reset < 0) {
-		dev_err(par->info->device, "Missing 'reset' gpio. Aborting.\n");
-		return -EINVAL;
-	}
-	return 0;
-}
-
-#ifdef CONFIG_FB_BACKLIGHT
-static int backlight_chip_update_status(struct backlight_device *bd)
-{
-	struct fbtft_par *par = bl_get_data(bd);
-	int brightness = bd->props.brightness;
-
-	fbtft_par_dbg(DEBUG_BACKLIGHT, par,
-		"%s: brightness=%d, power=%d, fb_blank=%d\n",
-		__func__, bd->props.brightness, bd->props.power,
-		bd->props.fb_blank);
-
-	if (bd->props.power != FB_BLANK_UNBLANK)
-		brightness = 0;
-
-	if (bd->props.fb_blank != FB_BLANK_UNBLANK)
-		brightness = 0;
-
-	write_reg(par, CMD_LCD_LED, brightness);
-
-	return 0;
-}
-
-static void register_chip_backlight(struct fbtft_par *par)
-{
-	struct backlight_device *bd;
-	struct backlight_properties bl_props = { 0, };
-	struct backlight_ops *bl_ops;
-
-	fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s()\n", __func__);
-
-	bl_ops = devm_kzalloc(par->info->device, sizeof(struct backlight_ops),
-				GFP_KERNEL);
-	if (!bl_ops) {
-		dev_err(par->info->device,
-			"%s: could not allocate memory for backlight operations.\n",
-			__func__);
-		return;
-	}
-
-	bl_ops->update_status = backlight_chip_update_status;
-	bl_props.type = BACKLIGHT_RAW;
-	bl_props.power = FB_BLANK_POWERDOWN;
-	bl_props.max_brightness = 100;
-	bl_props.brightness = DEFAULT_BRIGHTNESS;
-
-	bd = backlight_device_register(dev_driver_string(par->info->device),
-				par->info->device, par, bl_ops, &bl_props);
-	if (IS_ERR(bd)) {
-		dev_err(par->info->device,
-			"cannot register backlight device (%ld)\n",
-			PTR_ERR(bd));
-		return;
-	}
-	par->info->bl_dev = bd;
-
-	if (!par->fbtftops.unregister_backlight)
-		par->fbtftops.unregister_backlight = fbtft_unregister_backlight;
-}
-#else
-#define register_chip_backlight NULL
-#endif
-
-
-static struct fbtft_display display = {
-	.regwidth = 8,
-	.buswidth = 8,
-	.width = WIDTH,
-	.height = HEIGHT,
-	.fps = FPS,
-	.txbuflen = TXBUFLEN,
-	.fbtftops = {
-		.write_register = write_reg8_bus8,
-		.write_vmem = write_vmem,
-		.init_display = init_display,
-		.set_addr_win = set_addr_win,
-		.set_var = set_var,
-		.verify_gpios = verify_gpios,
-		.register_backlight = register_chip_backlight,
-	},
-};
-FBTFT_REGISTER_DRIVER(DRVNAME, "watterott,openlcd", &display);
-
-MODULE_ALIAS("spi:" DRVNAME);
-
-MODULE_DESCRIPTION("FB driver for the Watterott LCD Controller");
-MODULE_AUTHOR("Noralf Tronnes");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c
index 912c6328fb87..30e436ff19e4 100644
--- a/drivers/staging/fbtft/fbtft-bus.c
+++ b/drivers/staging/fbtft/fbtft-bus.c
@@ -1,52 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/errno.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include "fbtft.h"
 
-
-
-
 /*****************************************************************************
  *
  *   void (*write_reg)(struct fbtft_par *par, int len, ...);
  *
  *****************************************************************************/
 
-#define define_fbtft_write_reg(func, type, modifier)                          \
+#define define_fbtft_write_reg(func, buffer_type, data_type, modifier)        \
 void func(struct fbtft_par *par, int len, ...)                                \
 {                                                                             \
 	va_list args;                                                         \
 	int i, ret;                                                           \
 	int offset = 0;                                                       \
-	type *buf = (type *)par->buf;                                         \
+	buffer_type *buf = (buffer_type *)par->buf;                           \
 									      \
 	if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) {                    \
 		va_start(args, len);                                          \
 		for (i = 0; i < len; i++) {                                   \
-			buf[i] = (type)va_arg(args, unsigned int);            \
+			buf[i] = modifier((data_type)va_arg(args,             \
+							    unsigned int));   \
 		}                                                             \
 		va_end(args);                                                 \
-		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, type, buf, len, "%s: ", __func__);   \
+		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par,                  \
+				  par->info->device, buffer_type, buf, len,   \
+				  "%s: ", __func__);                          \
 	}                                                                     \
 									      \
 	va_start(args, len);                                                  \
 									      \
 	if (par->startbyte) {                                                 \
 		*(u8 *)par->buf = par->startbyte;                             \
-		buf = (type *)(par->buf + 1);                                 \
+		buf = (buffer_type *)(par->buf + 1);                          \
 		offset = 1;                                                   \
 	}                                                                     \
 									      \
-	*buf = modifier((type)va_arg(args, unsigned int));                    \
-	if (par->gpio.dc != -1)                                               \
-		gpio_set_value(par->gpio.dc, 0);                              \
-	ret = par->fbtftops.write(par, par->buf, sizeof(type)+offset);        \
-	if (ret < 0) {                                                        \
-		va_end(args);                                                 \
-		dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret); \
-		return;                                                       \
-	}                                                                     \
+	*buf = modifier((data_type)va_arg(args, unsigned int));               \
+	ret = fbtft_write_buf_dc(par, par->buf, sizeof(data_type) + offset,   \
+				 0);                                          \
+	if (ret < 0)							      \
+		goto out;						      \
 	len--;                                                                \
 									      \
 	if (par->startbyte)                                                   \
@@ -54,25 +51,20 @@ void func(struct fbtft_par *par, int len, ...)                                \
 									      \
 	if (len) {                                                            \
 		i = len;                                                      \
-		while (i--) {                                                 \
-			*buf++ = modifier((type)va_arg(args, unsigned int));  \
-		}                                                             \
-		if (par->gpio.dc != -1)                                       \
-			gpio_set_value(par->gpio.dc, 1);                      \
-		ret = par->fbtftops.write(par, par->buf, len * (sizeof(type)+offset)); \
-		if (ret < 0) {                                                \
-			va_end(args);                                         \
-			dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret); \
-			return;                                               \
-		}                                                             \
+		while (i--)						      \
+			*buf++ = modifier((data_type)va_arg(args,             \
+							    unsigned int));   \
+		fbtft_write_buf_dc(par, par->buf,			      \
+				   len * (sizeof(data_type) + offset), 1);    \
 	}                                                                     \
+out:									      \
 	va_end(args);                                                         \
 }                                                                             \
 EXPORT_SYMBOL(func);
 
-define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, )
-define_fbtft_write_reg(fbtft_write_reg16_bus8, u16, cpu_to_be16)
-define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, )
+define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, u8, )
+define_fbtft_write_reg(fbtft_write_reg16_bus8, __be16, u16, cpu_to_be16)
+define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, u16, )
 
 void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)
 {
@@ -87,14 +79,16 @@ void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)
 			*(((u8 *)buf) + i) = (u8)va_arg(args, unsigned int);
 		va_end(args);
 		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par,
-			par->info->device, u8, buf, len, "%s: ", __func__);
+				  par->info->device, u8, buf, len, "%s: ",
+				  __func__);
 	}
 	if (len <= 0)
 		return;
 
 	if (par->spi && (par->spi->bits_per_word == 8)) {
 		/* we're emulating 9-bit, pad start of buffer with no-ops
-		   (assuming here that zero is a no-op) */
+		 * (assuming here that zero is a no-op)
+		 */
 		pad = (len % 4) ? 4 - (len % 4) : 0;
 		for (i = 0; i < pad; i++)
 			*buf++ = 0x000;
@@ -117,9 +111,6 @@ void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)
 }
 EXPORT_SYMBOL(fbtft_write_reg8_bus9);
 
-
-
-
 /*****************************************************************************
  *
  *   int (*write_vmem)(struct fbtft_par *par);
@@ -130,7 +121,7 @@ EXPORT_SYMBOL(fbtft_write_reg8_bus9);
 int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 {
 	u16 *vmem16;
-	u16 *txbuf16 = (u16 *)par->txbuf.buf;
+	__be16 *txbuf16 = par->txbuf.buf;
 	size_t remain;
 	size_t to_copy;
 	size_t tx_array_size;
@@ -138,14 +129,10 @@ int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 	int ret = 0;
 	size_t startbyte_size = 0;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s(offset=%zu, len=%zu)\n",
-		__func__, offset, len);
-
 	remain = len / 2;
-	vmem16 = (u16 *)(par->info->screen_base + offset);
+	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 
-	if (par->gpio.dc != -1)
-		gpio_set_value(par->gpio.dc, 1);
+	gpiod_set_value(par->gpio.dc, 1);
 
 	/* non buffered write */
 	if (!par->txbuf.buf)
@@ -155,16 +142,16 @@ int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 	tx_array_size = par->txbuf.len / 2;
 
 	if (par->startbyte) {
-		txbuf16 = (u16 *)(par->txbuf.buf + 1);
+		txbuf16 = par->txbuf.buf + 1;
 		tx_array_size -= 2;
 		*(u8 *)(par->txbuf.buf) = par->startbyte | 0x2;
 		startbyte_size = 1;
 	}
 
 	while (remain) {
-		to_copy = remain > tx_array_size ? tx_array_size : remain;
-		dev_dbg(par->info->device, "    to_copy=%zu, remain=%zu\n",
-						to_copy, remain - to_copy);
+		to_copy = min(tx_array_size, remain);
+		dev_dbg(par->info->device, "to_copy=%zu, remain=%zu\n",
+			to_copy, remain - to_copy);
 
 		for (i = 0; i < to_copy; i++)
 			txbuf16[i] = cpu_to_be16(vmem16[i]);
@@ -184,7 +171,7 @@ EXPORT_SYMBOL(fbtft_write_vmem16_bus8);
 /* 16 bit pixel over 9-bit SPI bus: dc + high byte, dc + low byte */
 int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u8 __iomem *vmem8;
+	u8 *vmem8;
 	u16 *txbuf16 = par->txbuf.buf;
 	size_t remain;
 	size_t to_copy;
@@ -192,35 +179,32 @@ int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len)
 	int i;
 	int ret = 0;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s(offset=%zu, len=%zu)\n",
-		__func__, offset, len);
-
 	if (!par->txbuf.buf) {
 		dev_err(par->info->device, "%s: txbuf.buf is NULL\n", __func__);
 		return -1;
 	}
 
 	remain = len;
-	vmem8 = par->info->screen_base + offset;
+	vmem8 = par->info->screen_buffer + offset;
 
 	tx_array_size = par->txbuf.len / 2;
 
 	while (remain) {
-		to_copy = remain > tx_array_size ? tx_array_size : remain;
-		dev_dbg(par->info->device, "    to_copy=%zu, remain=%zu\n",
-						to_copy, remain - to_copy);
+		to_copy = min(tx_array_size, remain);
+		dev_dbg(par->info->device, "to_copy=%zu, remain=%zu\n",
+			to_copy, remain - to_copy);
 
 #ifdef __LITTLE_ENDIAN
 		for (i = 0; i < to_copy; i += 2) {
-			txbuf16[i]     = 0x0100 | ioread8(vmem8 + i + 1);
-			txbuf16[i + 1] = 0x0100 | ioread8(vmem8 + i);
+			txbuf16[i]     = 0x0100 | vmem8[i + 1];
+			txbuf16[i + 1] = 0x0100 | vmem8[i];
 		}
 #else
 		for (i = 0; i < to_copy; i++)
-			txbuf16[i]   = 0x0100 | ioread8(vmem8 + i);
+			txbuf16[i]   = 0x0100 | vmem8[i];
 #endif
 		vmem8 = vmem8 + to_copy;
-		ret = par->fbtftops.write(par, par->txbuf.buf, to_copy*2);
+		ret = par->fbtftops.write(par, par->txbuf.buf, to_copy * 2);
 		if (ret < 0)
 			return ret;
 		remain -= to_copy;
@@ -242,15 +226,9 @@ int fbtft_write_vmem16_bus16(struct fbtft_par *par, size_t offset, size_t len)
 {
 	u16 *vmem16;
 
-	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s(offset=%zu, len=%zu)\n",
-		__func__, offset, len);
-
-	vmem16 = (u16 *)(par->info->screen_base + offset);
-
-	if (par->gpio.dc != -1)
-		gpio_set_value(par->gpio.dc, 1);
+	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 
 	/* no need for buffered write with 16-bit bus */
-	return par->fbtftops.write(par, vmem16, len);
+	return fbtft_write_buf_dc(par, vmem16, len, 1);
 }
 EXPORT_SYMBOL(fbtft_write_vmem16_bus16);
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 23392eb6799e..8a5ccc8ae0a1 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2013 Noralf Tronnes
  *
  * This driver is inspired by:
  *   st7735fb.c, Copyright (C) 2011, Matt Porter
  *   broadsheetfb.c, Copyright (C) 2008, Jaya Kumar
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
@@ -29,33 +16,40 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/fb.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include <linux/delay.h>
 #include <linux/uaccess.h>
 #include <linux/backlight.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/spinlock.h>
-#include <linux/dma-mapping.h>
-#include <linux/of.h>
-#include <linux/of_gpio.h>
+
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 #include "internal.h"
 
 static unsigned long debug;
-module_param(debug, ulong, 0);
+module_param(debug, ulong, 0000);
 MODULE_PARM_DESC(debug, "override device debug level");
 
-#ifdef CONFIG_HAS_DMA
-static bool dma = true;
-module_param(dma, bool, 0);
-MODULE_PARM_DESC(dma, "Use DMA buffer");
-#endif
+int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc)
+{
+	int ret;
+
+	gpiod_set_value(par->gpio.dc, dc);
 
+	ret = par->fbtftops.write(par, buf, len);
+	if (ret < 0)
+		dev_err(par->info->device,
+			"write() failed and returned %d\n", ret);
+	return ret;
+}
+EXPORT_SYMBOL(fbtft_write_buf_dc);
 
 void fbtft_dbg_hex(const struct device *dev, int groupsize,
-			void *buf, size_t len, const char *fmt, ...)
+		   const void *buf, size_t len, const char *fmt, ...)
 {
 	va_list args;
 	static char textbuf[512];
@@ -67,7 +61,7 @@ void fbtft_dbg_hex(const struct device *dev, int groupsize,
 	va_end(args);
 
 	hex_dump_to_buffer(buf, len, 32, groupsize, text + text_len,
-				512 - text_len, false);
+			   512 - text_len, false);
 
 	if (len > 32)
 		dev_info(dev, "%s ...\n", text);
@@ -76,189 +70,76 @@ void fbtft_dbg_hex(const struct device *dev, int groupsize,
 }
 EXPORT_SYMBOL(fbtft_dbg_hex);
 
-static unsigned long fbtft_request_gpios_match(struct fbtft_par *par,
-					const struct fbtft_gpio *gpio)
-{
-	int ret;
-	long val;
-
-	fbtft_par_dbg(DEBUG_REQUEST_GPIOS_MATCH, par, "%s('%s')\n",
-		__func__, gpio->name);
-
-	if (strcasecmp(gpio->name, "reset") == 0) {
-		par->gpio.reset = gpio->gpio;
-		return GPIOF_OUT_INIT_HIGH;
-	} else if (strcasecmp(gpio->name, "dc") == 0) {
-		par->gpio.dc = gpio->gpio;
-		return GPIOF_OUT_INIT_LOW;
-	} else if (strcasecmp(gpio->name, "cs") == 0) {
-		par->gpio.cs = gpio->gpio;
-		return GPIOF_OUT_INIT_HIGH;
-	} else if (strcasecmp(gpio->name, "wr") == 0) {
-		par->gpio.wr = gpio->gpio;
-		return GPIOF_OUT_INIT_HIGH;
-	} else if (strcasecmp(gpio->name, "rd") == 0) {
-		par->gpio.rd = gpio->gpio;
-		return GPIOF_OUT_INIT_HIGH;
-	} else if (strcasecmp(gpio->name, "latch") == 0) {
-		par->gpio.latch = gpio->gpio;
-		return GPIOF_OUT_INIT_LOW;
-	} else if (gpio->name[0] == 'd' && gpio->name[1] == 'b') {
-		ret = kstrtol(&gpio->name[2], 10, &val);
-		if (ret == 0 && val < 16) {
-			par->gpio.db[val] = gpio->gpio;
-			return GPIOF_OUT_INIT_LOW;
-		}
-	} else if (strcasecmp(gpio->name, "led") == 0) {
-		par->gpio.led[0] = gpio->gpio;
-		return GPIOF_OUT_INIT_LOW;
-	} else if (strcasecmp(gpio->name, "led_") == 0) {
-		par->gpio.led[0] = gpio->gpio;
-		return GPIOF_OUT_INIT_HIGH;
-	}
-
-	return FBTFT_GPIO_NO_MATCH;
-}
-
-static int fbtft_request_gpios(struct fbtft_par *par)
-{
-	struct fbtft_platform_data *pdata = par->pdata;
-	const struct fbtft_gpio *gpio;
-	unsigned long flags;
-	int ret;
-
-	if (pdata && pdata->gpios) {
-		gpio = pdata->gpios;
-		while (gpio->name[0]) {
-			flags = FBTFT_GPIO_NO_MATCH;
-			/* if driver provides match function, try it first,
-			   if no match use our own */
-			if (par->fbtftops.request_gpios_match)
-				flags = par->fbtftops.request_gpios_match(par, gpio);
-			if (flags == FBTFT_GPIO_NO_MATCH)
-				flags = fbtft_request_gpios_match(par, gpio);
-			if (flags != FBTFT_GPIO_NO_MATCH) {
-				ret = devm_gpio_request_one(par->info->device,
-						gpio->gpio, flags,
-						par->info->device->driver->name);
-				if (ret < 0) {
-					dev_err(par->info->device,
-						"%s: gpio_request_one('%s'=%d) failed with %d\n",
-						__func__, gpio->name,
-						gpio->gpio, ret);
-					return ret;
-				}
-				fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par,
-					"%s: '%s' = GPIO%d\n",
-					__func__, gpio->name, gpio->gpio);
-			}
-			gpio++;
-		}
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_OF
 static int fbtft_request_one_gpio(struct fbtft_par *par,
-				  const char *name, int index, int *gpiop)
+				  const char *name, int index,
+				  struct gpio_desc **gpiop)
 {
 	struct device *dev = par->info->device;
-	struct device_node *node = dev->of_node;
-	int gpio, flags, ret = 0;
-	enum of_gpio_flags of_flags;
 
-	if (of_find_property(node, name, NULL)) {
-		gpio = of_get_named_gpio_flags(node, name, index, &of_flags);
-		if (gpio == -ENOENT)
-			return 0;
-		if (gpio == -EPROBE_DEFER)
-			return gpio;
-		if (gpio < 0) {
-			dev_err(dev,
-				"failed to get '%s' from DT\n", name);
-			return gpio;
-		}
+	*gpiop = devm_gpiod_get_index_optional(dev, name, index,
+					       GPIOD_OUT_LOW);
+	if (IS_ERR(*gpiop))
+		return dev_err_probe(dev, PTR_ERR(*gpiop), "Failed to request %s GPIO\n", name);
 
-		/* active low translates to initially low */
-		flags = (of_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW :
-							GPIOF_OUT_INIT_HIGH;
-		ret = devm_gpio_request_one(dev, gpio, flags,
-						dev->driver->name);
-		if (ret) {
-			dev_err(dev,
-				"gpio_request_one('%s'=%d) failed with %d\n",
-				name, gpio, ret);
-			return ret;
-		}
-		if (gpiop)
-			*gpiop = gpio;
-		fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, "%s: '%s' = GPIO%d\n",
-							__func__, name, gpio);
-	}
+	fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, "%s: '%s' GPIO\n",
+		      __func__, name);
 
-	return ret;
+	return 0;
 }
 
-static int fbtft_request_gpios_dt(struct fbtft_par *par)
+static int fbtft_request_gpios(struct fbtft_par *par)
 {
 	int i;
 	int ret;
 
-	if (!par->info->device->of_node)
-		return -EINVAL;
-
-	ret = fbtft_request_one_gpio(par, "reset-gpios", 0, &par->gpio.reset);
+	ret = fbtft_request_one_gpio(par, "reset", 0, &par->gpio.reset);
 	if (ret)
 		return ret;
-	ret = fbtft_request_one_gpio(par, "dc-gpios", 0, &par->gpio.dc);
+	ret = fbtft_request_one_gpio(par, "dc", 0, &par->gpio.dc);
 	if (ret)
 		return ret;
-	ret = fbtft_request_one_gpio(par, "rd-gpios", 0, &par->gpio.rd);
+	ret = fbtft_request_one_gpio(par, "rd", 0, &par->gpio.rd);
 	if (ret)
 		return ret;
-	ret = fbtft_request_one_gpio(par, "wr-gpios", 0, &par->gpio.wr);
+	ret = fbtft_request_one_gpio(par, "wr", 0, &par->gpio.wr);
 	if (ret)
 		return ret;
-	ret = fbtft_request_one_gpio(par, "cs-gpios", 0, &par->gpio.cs);
+	ret = fbtft_request_one_gpio(par, "cs", 0, &par->gpio.cs);
 	if (ret)
 		return ret;
-	ret = fbtft_request_one_gpio(par, "latch-gpios", 0, &par->gpio.latch);
+	ret = fbtft_request_one_gpio(par, "latch", 0, &par->gpio.latch);
 	if (ret)
 		return ret;
 	for (i = 0; i < 16; i++) {
-		ret = fbtft_request_one_gpio(par, "db-gpios", i,
-						&par->gpio.db[i]);
+		ret = fbtft_request_one_gpio(par, "db", i,
+					     &par->gpio.db[i]);
 		if (ret)
 			return ret;
-		ret = fbtft_request_one_gpio(par, "led-gpios", i,
-						&par->gpio.led[i]);
+		ret = fbtft_request_one_gpio(par, "led", i,
+					     &par->gpio.led[i]);
 		if (ret)
 			return ret;
-		ret = fbtft_request_one_gpio(par, "aux-gpios", i,
-						&par->gpio.aux[i]);
+		ret = fbtft_request_one_gpio(par, "aux", i,
+					     &par->gpio.aux[i]);
 		if (ret)
 			return ret;
 	}
 
 	return 0;
 }
-#endif
 
-#ifdef CONFIG_FB_BACKLIGHT
 static int fbtft_backlight_update_status(struct backlight_device *bd)
 {
 	struct fbtft_par *par = bl_get_data(bd);
-	bool polarity = !!(bd->props.state & BL_CORE_DRIVER1);
+	bool polarity = par->polarity;
 
-	fbtft_par_dbg(DEBUG_BACKLIGHT, par,
-		"%s: polarity=%d, power=%d, fb_blank=%d\n",
-		__func__, polarity, bd->props.power, bd->props.fb_blank);
+	fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s: polarity=%d, power=%d\n", __func__,
+		      polarity, bd->props.power);
 
-	if ((bd->props.power == FB_BLANK_UNBLANK) && (bd->props.fb_blank == FB_BLANK_UNBLANK))
-		gpio_set_value(par->gpio.led[0], polarity);
+	if (!backlight_is_blank(bd))
+		gpiod_set_value(par->gpio.led[0], polarity);
 	else
-		gpio_set_value(par->gpio.led[0], !polarity);
+		gpiod_set_value(par->gpio.led[0], !polarity);
 
 	return 0;
 }
@@ -270,48 +151,40 @@ static int fbtft_backlight_get_brightness(struct backlight_device *bd)
 
 void fbtft_unregister_backlight(struct fbtft_par *par)
 {
-	const struct backlight_ops *bl_ops;
-
-	fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s()\n", __func__);
-
 	if (par->info->bl_dev) {
-		par->info->bl_dev->props.power = FB_BLANK_POWERDOWN;
+		par->info->bl_dev->props.power = BACKLIGHT_POWER_OFF;
 		backlight_update_status(par->info->bl_dev);
-		bl_ops = par->info->bl_dev->ops;
 		backlight_device_unregister(par->info->bl_dev);
 		par->info->bl_dev = NULL;
 	}
 }
+EXPORT_SYMBOL(fbtft_unregister_backlight);
+
+static const struct backlight_ops fbtft_bl_ops = {
+	.get_brightness	= fbtft_backlight_get_brightness,
+	.update_status	= fbtft_backlight_update_status,
+};
 
 void fbtft_register_backlight(struct fbtft_par *par)
 {
 	struct backlight_device *bd;
 	struct backlight_properties bl_props = { 0, };
-	struct backlight_ops *bl_ops;
-
-	fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s()\n", __func__);
 
-	if (par->gpio.led[0] == -1) {
+	if (!par->gpio.led[0]) {
 		fbtft_par_dbg(DEBUG_BACKLIGHT, par,
-			"%s(): led pin not set, exiting.\n", __func__);
+			      "%s(): led pin not set, exiting.\n", __func__);
 		return;
 	}
 
-	bl_ops = devm_kzalloc(par->info->device, sizeof(struct backlight_ops),
-				GFP_KERNEL);
-	if (!bl_ops)
-		return;
-
-	bl_ops->get_brightness = fbtft_backlight_get_brightness;
-	bl_ops->update_status = fbtft_backlight_update_status;
 	bl_props.type = BACKLIGHT_RAW;
 	/* Assume backlight is off, get polarity from current state of pin */
-	bl_props.power = FB_BLANK_POWERDOWN;
-	if (!gpio_get_value(par->gpio.led[0]))
-		bl_props.state |= BL_CORE_DRIVER1;
+	bl_props.power = BACKLIGHT_POWER_OFF;
+	if (!gpiod_get_value(par->gpio.led[0]))
+		par->polarity = true;
 
 	bd = backlight_device_register(dev_driver_string(par->info->device),
-				par->info->device, par, bl_ops, &bl_props);
+				       par->info->device, par,
+				       &fbtft_bl_ops, &bl_props);
 	if (IS_ERR(bd)) {
 		dev_err(par->info->device,
 			"cannot register backlight device (%ld)\n",
@@ -323,58 +196,48 @@ void fbtft_register_backlight(struct fbtft_par *par)
 	if (!par->fbtftops.unregister_backlight)
 		par->fbtftops.unregister_backlight = fbtft_unregister_backlight;
 }
-#else
-void fbtft_register_backlight(struct fbtft_par *par) { };
-void fbtft_unregister_backlight(struct fbtft_par *par) { };
-#endif
 EXPORT_SYMBOL(fbtft_register_backlight);
-EXPORT_SYMBOL(fbtft_unregister_backlight);
 
 static void fbtft_set_addr_win(struct fbtft_par *par, int xs, int ys, int xe,
 			       int ye)
 {
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  (xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);
 
-	/* Column address set */
-	write_reg(par, 0x2A,
-		(xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  (ys >> 8) & 0xFF, ys & 0xFF, (ye >> 8) & 0xFF, ye & 0xFF);
 
-	/* Row address set */
-	write_reg(par, 0x2B,
-		(ys >> 8) & 0xFF, ys & 0xFF, (ye >> 8) & 0xFF, ye & 0xFF);
-
-	/* Memory write */
-	write_reg(par, 0x2C);
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
-
 static void fbtft_reset(struct fbtft_par *par)
 {
-	if (par->gpio.reset == -1)
+	if (!par->gpio.reset)
 		return;
-	fbtft_par_dbg(DEBUG_RESET, par, "%s()\n", __func__);
-	gpio_set_value(par->gpio.reset, 0);
-	udelay(20);
-	gpio_set_value(par->gpio.reset, 1);
-	mdelay(120);
-}
 
+	gpiod_set_value_cansleep(par->gpio.reset, 1);
+	usleep_range(20, 40);
+	gpiod_set_value_cansleep(par->gpio.reset, 0);
+	msleep(120);
+
+	gpiod_set_value_cansleep(par->gpio.cs, 1);  /* Activate chip */
+}
 
-static void fbtft_update_display(struct fbtft_par *par, unsigned start_line,
-				 unsigned end_line)
+static void fbtft_update_display(struct fbtft_par *par, unsigned int start_line,
+				 unsigned int end_line)
 {
 	size_t offset, len;
-	struct timespec ts_start, ts_end, ts_fps, ts_duration;
-	long fps_ms, fps_us, duration_ms, duration_us;
+	ktime_t ts_start, ts_end;
 	long fps, throughput;
 	bool timeit = false;
 	int ret = 0;
 
-	if (unlikely(par->debug & (DEBUG_TIME_FIRST_UPDATE | DEBUG_TIME_EACH_UPDATE))) {
+	if (unlikely(par->debug & (DEBUG_TIME_FIRST_UPDATE |
+			DEBUG_TIME_EACH_UPDATE))) {
 		if ((par->debug & DEBUG_TIME_EACH_UPDATE) ||
-				((par->debug & DEBUG_TIME_FIRST_UPDATE) && !par->first_update_done)) {
-			getnstimeofday(&ts_start);
+		    ((par->debug & DEBUG_TIME_FIRST_UPDATE) &&
+		    !par->first_update_done)) {
+			ts_start = ktime_get();
 			timeit = true;
 		}
 	}
@@ -382,25 +245,27 @@ static void fbtft_update_display(struct fbtft_par *par, unsigned start_line,
 	/* Sanity checks */
 	if (start_line > end_line) {
 		dev_warn(par->info->device,
-			"%s: start_line=%u is larger than end_line=%u. Shouldn't happen, will do full display update\n",
-			__func__, start_line, end_line);
+			 "%s: start_line=%u is larger than end_line=%u. Shouldn't happen, will do full display update\n",
+			 __func__, start_line, end_line);
 		start_line = 0;
 		end_line = par->info->var.yres - 1;
 	}
-	if (start_line > par->info->var.yres - 1 || end_line > par->info->var.yres - 1) {
+	if (start_line > par->info->var.yres - 1 ||
+	    end_line > par->info->var.yres - 1) {
 		dev_warn(par->info->device,
-			"%s: start_line=%u or end_line=%u is larger than max=%d. Shouldn't happen, will do full display update\n",
-			__func__, start_line, end_line, par->info->var.yres - 1);
+			 "%s: start_line=%u or end_line=%u is larger than max=%d. Shouldn't happen, will do full display update\n",
+			 __func__, start_line,
+			 end_line, par->info->var.yres - 1);
 		start_line = 0;
 		end_line = par->info->var.yres - 1;
 	}
 
 	fbtft_par_dbg(DEBUG_UPDATE_DISPLAY, par, "%s(start_line=%u, end_line=%u)\n",
-		__func__, start_line, end_line);
+		      __func__, start_line, end_line);
 
 	if (par->fbtftops.set_addr_win)
 		par->fbtftops.set_addr_win(par, 0, start_line,
-				par->info->var.xres-1, end_line);
+				par->info->var.xres - 1, end_line);
 
 	offset = start_line * par->info->fix.line_length;
 	len = (end_line - start_line + 1) * par->info->fix.line_length;
@@ -411,35 +276,25 @@ static void fbtft_update_display(struct fbtft_par *par, unsigned start_line,
 			__func__);
 
 	if (unlikely(timeit)) {
-		getnstimeofday(&ts_end);
-		if (par->update_time.tv_nsec == 0 && par->update_time.tv_sec == 0) {
-			par->update_time.tv_sec = ts_start.tv_sec;
-			par->update_time.tv_nsec = ts_start.tv_nsec;
-		}
-		ts_fps = timespec_sub(ts_start, par->update_time);
-		par->update_time.tv_sec = ts_start.tv_sec;
-		par->update_time.tv_nsec = ts_start.tv_nsec;
-		fps_ms = (ts_fps.tv_sec * 1000) + ((ts_fps.tv_nsec / 1000000) % 1000);
-		fps_us = (ts_fps.tv_nsec / 1000) % 1000;
-		fps = fps_ms * 1000 + fps_us;
+		ts_end = ktime_get();
+		if (!ktime_to_ns(par->update_time))
+			par->update_time = ts_start;
+
+		fps = ktime_us_delta(ts_start, par->update_time);
+		par->update_time = ts_start;
 		fps = fps ? 1000000 / fps : 0;
 
-		ts_duration = timespec_sub(ts_end, ts_start);
-		duration_ms = (ts_duration.tv_sec * 1000) + ((ts_duration.tv_nsec / 1000000) % 1000);
-		duration_us = (ts_duration.tv_nsec / 1000) % 1000;
-		throughput = duration_ms * 1000 + duration_us;
+		throughput = ktime_us_delta(ts_end, ts_start);
 		throughput = throughput ? (len * 1000) / throughput : 0;
 		throughput = throughput * 1000 / 1024;
 
 		dev_info(par->info->device,
-			"Display update: %ld kB/s (%ld.%.3ld ms), fps=%ld (%ld.%.3ld ms)\n",
-			throughput, duration_ms, duration_us,
-			fps, fps_ms, fps_us);
+			 "Display update: %ld kB/s, fps=%ld\n",
+			 throughput, fps);
 		par->first_update_done = true;
 	}
 }
 
-
 static void fbtft_mkdirty(struct fb_info *info, int y, int height)
 {
 	struct fbtft_par *par = info->par;
@@ -448,7 +303,7 @@ static void fbtft_mkdirty(struct fb_info *info, int y, int height)
 	/* special case, needed ? */
 	if (y == -1) {
 		y = 0;
-		height = info->var.yres - 1;
+		height = info->var.yres;
 	}
 
 	/* Mark display lines/area as dirty */
@@ -463,14 +318,12 @@ static void fbtft_mkdirty(struct fb_info *info, int y, int height)
 	schedule_delayed_work(&info->deferred_work, fbdefio->delay);
 }
 
-static void fbtft_deferred_io(struct fb_info *info, struct list_head *pagelist)
+static void fbtft_deferred_io(struct fb_info *info, struct list_head *pagereflist)
 {
 	struct fbtft_par *par = info->par;
-	unsigned dirty_lines_start, dirty_lines_end;
-	struct page *page;
-	unsigned long index;
-	unsigned y_low = 0, y_high = 0;
-	int count = 0;
+	unsigned int dirty_lines_start, dirty_lines_end;
+	struct fb_deferred_io_pageref *pageref;
+	unsigned int y_low = 0, y_high = 0;
 
 	spin_lock(&par->dirty_lock);
 	dirty_lines_start = par->dirty_lines_start;
@@ -481,14 +334,10 @@ static void fbtft_deferred_io(struct fb_info *info, struct list_head *pagelist)
 	spin_unlock(&par->dirty_lock);
 
 	/* Mark display lines as dirty */
-	list_for_each_entry(page, pagelist, lru) {
-		count++;
-		index = page->index << PAGE_SHIFT;
-		y_low = index / info->fix.line_length;
-		y_high = (index + PAGE_SIZE - 1) / info->fix.line_length;
-		dev_dbg(info->device,
-			"page->index=%lu y_low=%d y_high=%d\n",
-			page->index, y_low, y_high);
+	list_for_each_entry(pageref, pagereflist, list) {
+		y_low = pageref->offset / info->fix.line_length;
+		y_high = (pageref->offset + PAGE_SIZE - 1) / info->fix.line_length;
+		dev_dbg(info->device, "y_low=%d y_high=%d\n", y_low, y_high);
 		if (y_high > info->var.yres - 1)
 			y_high = info->var.yres - 1;
 		if (y_low < dirty_lines_start)
@@ -501,76 +350,19 @@ static void fbtft_deferred_io(struct fb_info *info, struct list_head *pagelist)
 					dirty_lines_start, dirty_lines_end);
 }
 
-
-static void fbtft_fb_fillrect(struct fb_info *info,
-			      const struct fb_fillrect *rect)
-{
-	struct fbtft_par *par = info->par;
-
-	dev_dbg(info->dev,
-		"%s: dx=%d, dy=%d, width=%d, height=%d\n",
-		__func__, rect->dx, rect->dy, rect->width, rect->height);
-	sys_fillrect(info, rect);
-
-	par->fbtftops.mkdirty(info, rect->dy, rect->height);
-}
-
-static void fbtft_fb_copyarea(struct fb_info *info,
-			      const struct fb_copyarea *area)
-{
-	struct fbtft_par *par = info->par;
-
-	dev_dbg(info->dev,
-		"%s: dx=%d, dy=%d, width=%d, height=%d\n",
-		__func__,  area->dx, area->dy, area->width, area->height);
-	sys_copyarea(info, area);
-
-	par->fbtftops.mkdirty(info, area->dy, area->height);
-}
-
-static void fbtft_fb_imageblit(struct fb_info *info,
-			       const struct fb_image *image)
-{
-	struct fbtft_par *par = info->par;
-
-	dev_dbg(info->dev,
-		"%s: dx=%d, dy=%d, width=%d, height=%d\n",
-		__func__,  image->dx, image->dy, image->width, image->height);
-	sys_imageblit(info, image);
-
-	par->fbtftops.mkdirty(info, image->dy, image->height);
-}
-
-static ssize_t fbtft_fb_write(struct fb_info *info, const char __user *buf,
-			      size_t count, loff_t *ppos)
-{
-	struct fbtft_par *par = info->par;
-	ssize_t res;
-
-	dev_dbg(info->dev,
-		"%s: count=%zd, ppos=%llu\n", __func__,  count, *ppos);
-	res = fb_sys_write(info, buf, count, ppos);
-
-	/* TODO: only mark changed area
-	   update all for now */
-	par->fbtftops.mkdirty(info, -1, 0);
-
-	return res;
-}
-
 /* from pxafb.c */
-static unsigned int chan_to_field(unsigned chan, struct fb_bitfield *bf)
+static unsigned int chan_to_field(unsigned int chan, struct fb_bitfield *bf)
 {
 	chan &= 0xffff;
 	chan >>= 16 - bf->length;
 	return chan << bf->offset;
 }
 
-static int fbtft_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
-			      unsigned blue, unsigned transp,
-			      struct fb_info *info)
+static int fbtft_fb_setcolreg(unsigned int regno, unsigned int red,
+			      unsigned int green, unsigned int blue,
+			      unsigned int transp, struct fb_info *info)
 {
-	unsigned val;
+	unsigned int val;
 	int ret = 1;
 
 	dev_dbg(info->dev,
@@ -590,7 +382,6 @@ static int fbtft_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
 			ret = 0;
 		}
 		break;
-
 	}
 	return ret;
 }
@@ -620,6 +411,32 @@ static int fbtft_fb_blank(int blank, struct fb_info *info)
 	return ret;
 }
 
+static void fbtft_ops_damage_range(struct fb_info *info, off_t off, size_t len)
+{
+	struct fbtft_par *par = info->par;
+
+	/* TODO: only mark changed area update all for now */
+	par->fbtftops.mkdirty(info, -1, 0);
+}
+
+static void fbtft_ops_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u32 height)
+{
+	struct fbtft_par *par = info->par;
+
+	par->fbtftops.mkdirty(info, y, height);
+}
+
+FB_GEN_DEFAULT_DEFERRED_SYSMEM_OPS(fbtft_ops,
+				   fbtft_ops_damage_range,
+				   fbtft_ops_damage_area)
+
+static const struct fb_ops fbtft_ops = {
+	.owner        = THIS_MODULE,
+	FB_DEFAULT_DEFERRED_OPS(fbtft_ops),
+	.fb_setcolreg = fbtft_fb_setcolreg,
+	.fb_blank     = fbtft_fb_blank,
+};
+
 static void fbtft_merge_fbtftops(struct fbtft_ops *dst, struct fbtft_ops *src)
 {
 	if (src->write)
@@ -663,11 +480,11 @@ static void fbtft_merge_fbtftops(struct fbtft_ops *dst, struct fbtft_ops *src)
  *
  * @display: pointer to structure describing the display
  * @dev: pointer to the device for this fb, this can be NULL
+ * @pdata: platform data for the display in use
  *
  * Creates a new frame buffer info structure.
  *
  * Also creates and populates the following structures:
- *   info->fbops
  *   info->fbdefio
  *   info->pseudo_palette
  *   par->fbtftops
@@ -682,23 +499,23 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 {
 	struct fb_info *info;
 	struct fbtft_par *par;
-	struct fb_ops *fbops = NULL;
 	struct fb_deferred_io *fbdefio = NULL;
 	u8 *vmem = NULL;
 	void *txbuf = NULL;
 	void *buf = NULL;
-	unsigned width;
-	unsigned height;
+	unsigned int width;
+	unsigned int height;
 	int txbuflen = display->txbuflen;
-	unsigned bpp = display->bpp;
-	unsigned fps = display->fps;
-	int vmem_size, i;
-	int *init_sequence = display->init_sequence;
+	unsigned int bpp = display->bpp;
+	unsigned int fps = display->fps;
+	int vmem_size;
+	const s16 *init_sequence = display->init_sequence;
 	char *gamma = display->gamma;
-	unsigned long *gamma_curves = NULL;
+	u32 *gamma_curves = NULL;
 
 	/* sanity check */
-	if (display->gamma_num * display->gamma_len > FBTFT_GAMMA_MAX_VALUES_TOTAL) {
+	if (display->gamma_num * display->gamma_len >
+			FBTFT_GAMMA_MAX_VALUES_TOTAL) {
 		dev_err(dev, "FBTFT_GAMMA_MAX_VALUES_TOTAL=%d is exceeded\n",
 			FBTFT_GAMMA_MAX_VALUES_TOTAL);
 		return NULL;
@@ -751,60 +568,52 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 		height = display->height;
 	}
 
-	vmem_size = display->width * display->height * bpp / 8;
-	vmem = vzalloc(vmem_size);
-	if (!vmem)
-		goto alloc_fail;
-
-	fbops = devm_kzalloc(dev, sizeof(struct fb_ops), GFP_KERNEL);
-	if (!fbops)
-		goto alloc_fail;
-
 	fbdefio = devm_kzalloc(dev, sizeof(struct fb_deferred_io), GFP_KERNEL);
 	if (!fbdefio)
-		goto alloc_fail;
+		return NULL;
 
 	buf = devm_kzalloc(dev, 128, GFP_KERNEL);
 	if (!buf)
-		goto alloc_fail;
+		return NULL;
 
 	if (display->gamma_num && display->gamma_len) {
-		gamma_curves = devm_kzalloc(dev, display->gamma_num * display->gamma_len * sizeof(gamma_curves[0]),
-						GFP_KERNEL);
+		gamma_curves = devm_kcalloc(dev,
+					    display->gamma_num *
+					    display->gamma_len,
+					    sizeof(gamma_curves[0]),
+					    GFP_KERNEL);
 		if (!gamma_curves)
-			goto alloc_fail;
+			return NULL;
 	}
 
 	info = framebuffer_alloc(sizeof(struct fbtft_par), dev);
 	if (!info)
-		goto alloc_fail;
+		return NULL;
 
-	info->screen_base = (u8 __force __iomem *)vmem;
-	info->fbops = fbops;
-	info->fbdefio = fbdefio;
+	vmem_size = display->width * display->height * bpp / 8;
+	vmem = vzalloc(vmem_size);
+	if (!vmem)
+		goto release_framebuf;
 
-	fbops->owner        =      dev->driver->owner;
-	fbops->fb_read      =      fb_sys_read;
-	fbops->fb_write     =      fbtft_fb_write;
-	fbops->fb_fillrect  =      fbtft_fb_fillrect;
-	fbops->fb_copyarea  =      fbtft_fb_copyarea;
-	fbops->fb_imageblit =      fbtft_fb_imageblit;
-	fbops->fb_setcolreg =      fbtft_fb_setcolreg;
-	fbops->fb_blank     =      fbtft_fb_blank;
+	info->screen_buffer = vmem;
+	info->fbops = &fbtft_ops;
+	info->fbdefio = fbdefio;
 
-	fbdefio->delay =           HZ/fps;
-	fbdefio->deferred_io =     fbtft_deferred_io;
-	fb_deferred_io_init(info);
+	fbdefio->delay =            HZ / fps;
+	fbdefio->sort_pagereflist = true;
+	fbdefio->deferred_io =      fbtft_deferred_io;
 
-	strncpy(info->fix.id, dev->driver->name, 16);
+	snprintf(info->fix.id, sizeof(info->fix.id), "%s", dev->driver->name);
 	info->fix.type =           FB_TYPE_PACKED_PIXELS;
 	info->fix.visual =         FB_VISUAL_TRUECOLOR;
 	info->fix.xpanstep =	   0;
 	info->fix.ypanstep =	   0;
 	info->fix.ywrapstep =	   0;
-	info->fix.line_length =    width*bpp/8;
+	info->fix.line_length =    width * bpp / 8;
 	info->fix.accel =          FB_ACCEL_NONE;
 	info->fix.smem_len =       vmem_size;
+	if (fb_deferred_io_init(info))
+		goto release_screen_buffer;
 
 	info->var.rotate =         pdata->rotate;
 	info->var.xres =           width;
@@ -824,7 +633,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	info->var.transp.offset =  0;
 	info->var.transp.length =  0;
 
-	info->flags =              FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
+	info->flags =              FBINFO_VIRTFB;
 
 	par = info->par;
 	par->info = info;
@@ -842,14 +651,16 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	info->pseudo_palette = par->pseudo_palette;
 
 	if (par->gamma.curves && gamma) {
-		if (fbtft_gamma_parse_str(par,
-			par->gamma.curves, gamma, strlen(gamma)))
-			goto alloc_fail;
+		if (fbtft_gamma_parse_str(par, par->gamma.curves, gamma,
+					  strlen(gamma)))
+			goto cleanup_deferred;
 	}
 
 	/* Transmit buffer */
 	if (txbuflen == -1)
 		txbuflen = vmem_size + 2; /* add in case startbyte is used */
+	if (txbuflen >= vmem_size + 2)
+		txbuflen = 0;
 
 #ifdef __LITTLE_ENDIAN
 	if ((!txbuflen) && (bpp > 8))
@@ -857,34 +668,13 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 #endif
 
 	if (txbuflen > 0) {
-#ifdef CONFIG_HAS_DMA
-		if (dma) {
-			dev->coherent_dma_mask = ~0;
-			txbuf = dmam_alloc_coherent(dev, txbuflen, &par->txbuf.dma, GFP_DMA);
-		} else
-#endif
-		{
-			txbuf = devm_kzalloc(par->info->device, txbuflen, GFP_KERNEL);
-		}
+		txbuf = kzalloc(txbuflen, GFP_KERNEL);
 		if (!txbuf)
-			goto alloc_fail;
+			goto cleanup_deferred;
 		par->txbuf.buf = txbuf;
 		par->txbuf.len = txbuflen;
 	}
 
-	/* Initialize gpios to disabled */
-	par->gpio.reset = -1;
-	par->gpio.dc = -1;
-	par->gpio.rd = -1;
-	par->gpio.wr = -1;
-	par->gpio.cs = -1;
-	par->gpio.latch = -1;
-	for (i = 0; i < 16; i++) {
-		par->gpio.db[i] = -1;
-		par->gpio.led[i] = -1;
-		par->gpio.aux[i] = -1;
-	}
-
 	/* default fbtft operations */
 	par->fbtftops.write = fbtft_write_spi;
 	par->fbtftops.read = fbtft_read_spi;
@@ -894,7 +684,6 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	par->fbtftops.reset = fbtft_reset;
 	par->fbtftops.mkdirty = fbtft_mkdirty;
 	par->fbtftops.update_display = fbtft_update_display;
-	par->fbtftops.request_gpios = fbtft_request_gpios;
 	if (display->backlight)
 		par->fbtftops.register_backlight = fbtft_register_backlight;
 
@@ -903,9 +692,12 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 
 	return info;
 
-alloc_fail:
-	vfree(vmem);
-
+cleanup_deferred:
+	fb_deferred_io_cleanup(info);
+release_screen_buffer:
+	vfree(info->screen_buffer);
+release_framebuf:
+	framebuffer_release(info);
 	return NULL;
 }
 EXPORT_SYMBOL(fbtft_framebuffer_alloc);
@@ -918,8 +710,11 @@ EXPORT_SYMBOL(fbtft_framebuffer_alloc);
  */
 void fbtft_framebuffer_release(struct fb_info *info)
 {
+	struct fbtft_par *par = info->par;
+
+	kfree(par->txbuf.buf);
 	fb_deferred_io_cleanup(info);
-	vfree(info->screen_base);
+	vfree(info->screen_buffer);
 	framebuffer_release(info);
 }
 EXPORT_SYMBOL(fbtft_framebuffer_release);
@@ -993,35 +788,28 @@ int fbtft_register_framebuffer(struct fb_info *fb_info)
 
 	fbtft_sysfs_init(par);
 
-	if (par->txbuf.buf)
-		sprintf(text1, ", %zu KiB %sbuffer memory",
-			par->txbuf.len >> 10, par->txbuf.dma ? "DMA " : "");
+	if (par->txbuf.buf && par->txbuf.len >= 1024)
+		sprintf(text1, ", %zu KiB buffer memory", par->txbuf.len >> 10);
 	if (spi)
-		sprintf(text2, ", spi%d.%d at %d MHz", spi->master->bus_num,
-				spi->chip_select, spi->max_speed_hz/1000000);
+		sprintf(text2, ", spi%d.%d at %d MHz", spi->controller->bus_num,
+			spi_get_chipselect(spi, 0), spi->max_speed_hz / 1000000);
 	dev_info(fb_info->dev,
-		"%s frame buffer, %dx%d, %d KiB video memory%s, fps=%lu%s\n",
-		fb_info->fix.id, fb_info->var.xres, fb_info->var.yres,
-		fb_info->fix.smem_len >> 10, text1,
-		HZ/fb_info->fbdefio->delay, text2);
+		 "%s frame buffer, %dx%d, %d KiB video memory%s, fps=%lu%s\n",
+		 fb_info->fix.id, fb_info->var.xres, fb_info->var.yres,
+		 fb_info->fix.smem_len >> 10, text1,
+		 HZ / fb_info->fbdefio->delay, text2);
 
-#ifdef CONFIG_FB_BACKLIGHT
 	/* Turn on backlight if available */
 	if (fb_info->bl_dev) {
-		fb_info->bl_dev->props.power = FB_BLANK_UNBLANK;
+		fb_info->bl_dev->props.power = BACKLIGHT_POWER_ON;
 		fb_info->bl_dev->ops->update_status(fb_info->bl_dev);
 	}
-#endif
 
 	return 0;
 
 reg_fail:
 	if (par->fbtftops.unregister_backlight)
 		par->fbtftops.unregister_backlight(par);
-	if (spi)
-		spi_set_drvdata(spi, NULL);
-	if (par->pdev)
-		platform_set_drvdata(par->pdev, NULL);
 
 	return ret;
 }
@@ -1039,65 +827,66 @@ EXPORT_SYMBOL(fbtft_register_framebuffer);
 int fbtft_unregister_framebuffer(struct fb_info *fb_info)
 {
 	struct fbtft_par *par = fb_info->par;
-	struct spi_device *spi = par->spi;
 
-	if (spi)
-		spi_set_drvdata(spi, NULL);
-	if (par->pdev)
-		platform_set_drvdata(par->pdev, NULL);
 	if (par->fbtftops.unregister_backlight)
 		par->fbtftops.unregister_backlight(par);
 	fbtft_sysfs_exit(par);
-	return unregister_framebuffer(fb_info);
+	unregister_framebuffer(fb_info);
+
+	return 0;
 }
 EXPORT_SYMBOL(fbtft_unregister_framebuffer);
 
-#ifdef CONFIG_OF
 /**
- * fbtft_init_display_dt() - Device Tree init_display() function
+ * fbtft_init_display_from_property() - Device Tree init_display() function
  * @par: Driver data
  *
  * Return: 0 if successful, negative if error
  */
-static int fbtft_init_display_dt(struct fbtft_par *par)
+static int fbtft_init_display_from_property(struct fbtft_par *par)
 {
-	struct device_node *node = par->info->device->of_node;
-	struct property *prop;
-	const __be32 *p;
+	struct device *dev = par->info->device;
+	int buf[64], count, index, i, j, ret;
+	u32 *values;
 	u32 val;
-	int buf[64], i, j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
-	if (!node)
+	count = device_property_count_u32(dev, "init");
+	if (count < 0)
+		return count;
+	if (count == 0)
 		return -EINVAL;
 
-	prop = of_find_property(node, "init", NULL);
-	p = of_prop_next_u32(prop, NULL, &val);
-	if (!p)
-		return -EINVAL;
+	values = kmalloc_array(count + 1, sizeof(*values), GFP_KERNEL);
+	if (!values)
+		return -ENOMEM;
+
+	ret = device_property_read_u32_array(dev, "init", values, count);
+	if (ret)
+		goto out_free;
 
 	par->fbtftops.reset(par);
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
 
-	while (p) {
+	index = -1;
+	val = values[++index];
+
+	while (index < count) {
 		if (val & FBTFT_OF_INIT_CMD) {
 			val &= 0xFFFF;
 			i = 0;
-			while (p && !(val & 0xFFFF0000)) {
+			while ((index < count) && !(val & 0xFFFF0000)) {
 				if (i > 63) {
-					dev_err(par->info->device,
-					"%s: Maximum register values exceeded\n",
-					__func__);
-					return -EINVAL;
+					dev_err(dev,
+						"%s: Maximum register values exceeded\n",
+						__func__);
+					ret = -EINVAL;
+					goto out_free;
 				}
 				buf[i++] = val;
-				p = of_prop_next_u32(prop, p, &val);
+				val = values[++index];
 			}
 			/* make debug message */
 			fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-				"init: write_register:\n");
+				      "init: write_register:\n");
 			for (j = 0; j < i; j++)
 				fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
 					      "buf[%d] = %02X\n", j, buf[j]);
@@ -1121,19 +910,20 @@ static int fbtft_init_display_dt(struct fbtft_par *par)
 				buf[60], buf[61], buf[62], buf[63]);
 		} else if (val & FBTFT_OF_INIT_DELAY) {
 			fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-				"init: msleep(%u)\n", val & 0xFFFF);
+				      "init: msleep(%u)\n", val & 0xFFFF);
 			msleep(val & 0xFFFF);
-			p = of_prop_next_u32(prop, p, &val);
+			val = values[++index];
 		} else {
-			dev_err(par->info->device, "illegal init value 0x%X\n",
-									val);
-			return -EINVAL;
+			dev_err(dev, "illegal init value 0x%X\n", val);
+			ret = -EINVAL;
+			goto out_free;
 		}
 	}
 
-	return 0;
+out_free:
+	kfree(values);
+	return ret;
 }
-#endif
 
 /**
  * fbtft_init_display() - Generic init_display() function
@@ -1146,13 +936,9 @@ static int fbtft_init_display_dt(struct fbtft_par *par)
 int fbtft_init_display(struct fbtft_par *par)
 {
 	int buf[64];
-	char msg[128];
-	char str[16];
-	int i = 0;
+	int i;
 	int j;
 
-	fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
 	/* sanity check */
 	if (!par->init_sequence) {
 		dev_err(par->info->device,
@@ -1161,9 +947,11 @@ int fbtft_init_display(struct fbtft_par *par)
 	}
 
 	/* make sure stop marker exists */
-	for (i = 0; i < FBTFT_MAX_INIT_SEQUENCE; i++)
+	for (i = 0; i < FBTFT_MAX_INIT_SEQUENCE; i++) {
 		if (par->init_sequence[i] == -3)
 			break;
+	}
+
 	if (i == FBTFT_MAX_INIT_SEQUENCE) {
 		dev_err(par->info->device,
 			"missing stop marker at end of init sequence\n");
@@ -1171,8 +959,6 @@ int fbtft_init_display(struct fbtft_par *par)
 	}
 
 	par->fbtftops.reset(par);
-	if (par->gpio.cs != -1)
-		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
 
 	i = 0;
 	while (i < FBTFT_MAX_INIT_SEQUENCE) {
@@ -1185,7 +971,7 @@ int fbtft_init_display(struct fbtft_par *par)
 				"missing delimiter at position %d\n", i);
 			return -EINVAL;
 		}
-		if (par->init_sequence[i+1] < 0) {
+		if (par->init_sequence[i + 1] < 0) {
 			dev_err(par->info->device,
 				"missing value after delimiter %d at position %d\n",
 				par->init_sequence[i], i);
@@ -1194,25 +980,22 @@ int fbtft_init_display(struct fbtft_par *par)
 		switch (par->init_sequence[i]) {
 		case -1:
 			i++;
+
 			/* make debug message */
-			strcpy(msg, "");
-			j = i + 1;
-			while (par->init_sequence[j] >= 0) {
-				sprintf(str, "0x%02X ", par->init_sequence[j]);
-				strcat(msg, str);
-				j++;
-			}
-			fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-				"init: write(0x%02X) %s\n",
-				par->init_sequence[i], msg);
+			for (j = 0; par->init_sequence[i + 1 + j] >= 0; j++)
+				;
+
+			fbtft_par_dbg_hex(DEBUG_INIT_DISPLAY, par, par->info->device,
+					  s16, &par->init_sequence[i + 1], j,
+					  "init: write(0x%02X)", par->init_sequence[i]);
 
 			/* Write */
 			j = 0;
 			while (par->init_sequence[i] >= 0) {
 				if (j > 63) {
 					dev_err(par->info->device,
-					"%s: Maximum register values exceeded\n",
-					__func__);
+						"%s: Maximum register values exceeded\n",
+						__func__);
 					return -EINVAL;
 				}
 				buf[j++] = par->init_sequence[i++];
@@ -1238,7 +1021,8 @@ int fbtft_init_display(struct fbtft_par *par)
 		case -2:
 			i++;
 			fbtft_par_dbg(DEBUG_INIT_DISPLAY, par,
-				"init: mdelay(%d)\n", par->init_sequence[i]);
+				      "init: mdelay(%d)\n",
+				      par->init_sequence[i]);
 			mdelay(par->init_sequence[i++]);
 			break;
 		default:
@@ -1268,10 +1052,8 @@ static int fbtft_verify_gpios(struct fbtft_par *par)
 	struct fbtft_platform_data *pdata = par->pdata;
 	int i;
 
-	fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__);
-
-	if (pdata->display.buswidth != 9 && par->startbyte == 0 &&
-							par->gpio.dc < 0) {
+	if (pdata->display.buswidth != 9 &&  par->startbyte == 0 &&
+	    !par->gpio.dc) {
 		dev_err(par->info->device,
 			"Missing info about 'dc' gpio. Aborting.\n");
 		return -EINVAL;
@@ -1280,12 +1062,12 @@ static int fbtft_verify_gpios(struct fbtft_par *par)
 	if (!par->pdev)
 		return 0;
 
-	if (par->gpio.wr < 0) {
+	if (!par->gpio.wr) {
 		dev_err(par->info->device, "Missing 'wr' gpio. Aborting.\n");
 		return -EINVAL;
 	}
 	for (i = 0; i < pdata->display.buswidth; i++) {
-		if (par->gpio.db[i] < 0) {
+		if (!par->gpio.db[i]) {
 			dev_err(par->info->device,
 				"Missing 'db%02d' gpio. Aborting.\n", i);
 			return -EINVAL;
@@ -1295,27 +1077,25 @@ static int fbtft_verify_gpios(struct fbtft_par *par)
 	return 0;
 }
 
-#ifdef CONFIG_OF
 /* returns 0 if the property is not present */
-static u32 fbtft_of_value(struct device_node *node, const char *propname)
+static u32 fbtft_property_value(struct device *dev, const char *propname)
 {
 	int ret;
 	u32 val = 0;
 
-	ret = of_property_read_u32(node, propname, &val);
+	ret = device_property_read_u32(dev, propname, &val);
 	if (ret == 0)
-		pr_info("%s: %s = %u\n", __func__, propname, val);
+		dev_info(dev, "%s: %s = %u\n", __func__, propname, val);
 
 	return val;
 }
 
-static struct fbtft_platform_data *fbtft_probe_dt(struct device *dev)
+static struct fbtft_platform_data *fbtft_properties_read(struct device *dev)
 {
-	struct device_node *node = dev->of_node;
 	struct fbtft_platform_data *pdata;
 
-	if (!node) {
-		dev_err(dev, "Missing platform data or DT\n");
+	if (!dev_fwnode(dev)) {
+		dev_err(dev, "Missing platform data or properties\n");
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -1323,35 +1103,30 @@ static struct fbtft_platform_data *fbtft_probe_dt(struct device *dev)
 	if (!pdata)
 		return ERR_PTR(-ENOMEM);
 
-	pdata->display.width = fbtft_of_value(node, "width");
-	pdata->display.height = fbtft_of_value(node, "height");
-	pdata->display.regwidth = fbtft_of_value(node, "regwidth");
-	pdata->display.buswidth = fbtft_of_value(node, "buswidth");
-	pdata->display.backlight = fbtft_of_value(node, "backlight");
-	pdata->display.bpp = fbtft_of_value(node, "bpp");
-	pdata->display.debug = fbtft_of_value(node, "debug");
-	pdata->rotate = fbtft_of_value(node, "rotate");
-	pdata->bgr = of_property_read_bool(node, "bgr");
-	pdata->fps = fbtft_of_value(node, "fps");
-	pdata->txbuflen = fbtft_of_value(node, "txbuflen");
-	pdata->startbyte = fbtft_of_value(node, "startbyte");
-	of_property_read_string(node, "gamma", (const char **)&pdata->gamma);
-
-	if (of_find_property(node, "led-gpios", NULL))
+	pdata->display.width = fbtft_property_value(dev, "width");
+	pdata->display.height = fbtft_property_value(dev, "height");
+	pdata->display.regwidth = fbtft_property_value(dev, "regwidth");
+	pdata->display.buswidth = fbtft_property_value(dev, "buswidth");
+	pdata->display.backlight = fbtft_property_value(dev, "backlight");
+	pdata->display.bpp = fbtft_property_value(dev, "bpp");
+	pdata->display.debug = fbtft_property_value(dev, "debug");
+	pdata->rotate = fbtft_property_value(dev, "rotate");
+	pdata->bgr = device_property_read_bool(dev, "bgr");
+	pdata->fps = fbtft_property_value(dev, "fps");
+	pdata->txbuflen = fbtft_property_value(dev, "txbuflen");
+	pdata->startbyte = fbtft_property_value(dev, "startbyte");
+	device_property_read_string(dev, "gamma", (const char **)&pdata->gamma);
+
+	if (device_property_present(dev, "led-gpios"))
 		pdata->display.backlight = 1;
-	if (of_find_property(node, "init", NULL))
-		pdata->display.fbtftops.init_display = fbtft_init_display_dt;
-	pdata->display.fbtftops.request_gpios = fbtft_request_gpios_dt;
+	if (device_property_present(dev, "init"))
+		pdata->display.fbtftops.init_display =
+			fbtft_init_display_from_property;
+
+	pdata->display.fbtftops.request_gpios = fbtft_request_gpios;
 
 	return pdata;
 }
-#else
-static struct fbtft_platform_data *fbtft_probe_dt(struct device *dev)
-{
-	dev_err(dev, "Missing platform data\n");
-	return ERR_PTR(-EINVAL);
-}
-#endif
 
 /**
  * fbtft_probe_common() - Generic device probe() helper function
@@ -1366,7 +1141,8 @@ static struct fbtft_platform_data *fbtft_probe_dt(struct device *dev)
  * Return: 0 if successful, negative if error
  */
 int fbtft_probe_common(struct fbtft_display *display,
-			struct spi_device *sdev, struct platform_device *pdev)
+		       struct spi_device *sdev,
+		       struct platform_device *pdev)
 {
 	struct device *dev;
 	struct fb_info *info;
@@ -1379,12 +1155,9 @@ int fbtft_probe_common(struct fbtft_display *display,
 	else
 		dev = &pdev->dev;
 
-	if (unlikely(display->debug & DEBUG_DRIVER_INIT_FUNCTIONS))
-		dev_info(dev, "%s()\n", __func__);
-
 	pdata = dev->platform_data;
 	if (!pdata) {
-		pdata = fbtft_probe_dt(dev);
+		pdata = fbtft_properties_read(dev);
 		if (IS_ERR(pdata))
 			return PTR_ERR(pdata);
 	}
@@ -1398,25 +1171,23 @@ int fbtft_probe_common(struct fbtft_display *display,
 	par->pdev = pdev;
 
 	if (display->buswidth == 0) {
-		dev_err(dev, "buswidth is not set\n");
-		return -EINVAL;
+		ret = dev_err_probe(dev, -EINVAL, "buswidth is not set\n");
+		goto out_release;
 	}
 
 	/* write register functions */
-	if (display->regwidth == 8 && display->buswidth == 8) {
+	if (display->regwidth == 8 && display->buswidth == 8)
 		par->fbtftops.write_register = fbtft_write_reg8_bus8;
-	} else
-	if (display->regwidth == 8 && display->buswidth == 9 && par->spi) {
+	else if (display->regwidth == 8 && display->buswidth == 9 && par->spi)
 		par->fbtftops.write_register = fbtft_write_reg8_bus9;
-	} else if (display->regwidth == 16 && display->buswidth == 8) {
+	else if (display->regwidth == 16 && display->buswidth == 8)
 		par->fbtftops.write_register = fbtft_write_reg16_bus8;
-	} else if (display->regwidth == 16 && display->buswidth == 16) {
+	else if (display->regwidth == 16 && display->buswidth == 16)
 		par->fbtftops.write_register = fbtft_write_reg16_bus16;
-	} else {
+	else
 		dev_warn(dev,
-			"no default functions for regwidth=%d and buswidth=%d\n",
-			display->regwidth, display->buswidth);
-	}
+			 "no default functions for regwidth=%d and buswidth=%d\n",
+			 display->regwidth, display->buswidth);
 
 	/* write_vmem() functions */
 	if (display->buswidth == 8)
@@ -1436,19 +1207,16 @@ int fbtft_probe_common(struct fbtft_display *display,
 
 	/* 9-bit SPI setup */
 	if (par->spi && display->buswidth == 9) {
-		par->spi->bits_per_word = 9;
-		ret = par->spi->master->setup(par->spi);
-		if (ret) {
+		if (par->spi->controller->bits_per_word_mask & SPI_BPW_MASK(9)) {
+			par->spi->bits_per_word = 9;
+		} else {
 			dev_warn(&par->spi->dev,
-				"9-bit SPI not available, emulating using 8-bit.\n");
-			par->spi->bits_per_word = 8;
-			ret = par->spi->master->setup(par->spi);
-			if (ret)
-				goto out_release;
+				 "9-bit SPI not available, emulating using 8-bit.\n");
 			/* allocate buffer with room for dc bits */
 			par->extra = devm_kzalloc(par->info->device,
-				par->txbuf.len + (par->txbuf.len / 8) + 8,
-				GFP_KERNEL);
+						  par->txbuf.len +
+						  (par->txbuf.len / 8) + 8,
+						  GFP_KERNEL);
 			if (!par->extra) {
 				ret = -ENOMEM;
 				goto out_release;
@@ -1489,24 +1257,19 @@ EXPORT_SYMBOL(fbtft_probe_common);
  * @info: Framebuffer
  *
  * Unregisters and releases the framebuffer
- *
- * Return: 0 if successful, negative if error
  */
-int fbtft_remove_common(struct device *dev, struct fb_info *info)
+void fbtft_remove_common(struct device *dev, struct fb_info *info)
 {
 	struct fbtft_par *par;
 
-	if (!info)
-		return -EINVAL;
 	par = info->par;
 	if (par)
 		fbtft_par_dbg(DEBUG_DRIVER_INIT_FUNCTIONS, par,
-			"%s()\n", __func__);
+			      "%s()\n", __func__);
 	fbtft_unregister_framebuffer(info);
 	fbtft_framebuffer_release(info);
-
-	return 0;
 }
 EXPORT_SYMBOL(fbtft_remove_common);
 
+MODULE_DESCRIPTION("Core FB support for small TFT LCD display modules");
 MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/fbtft-io.c b/drivers/staging/fbtft/fbtft-io.c
index a6f091fb975c..de1904a443c2 100644
--- a/drivers/staging/fbtft/fbtft-io.c
+++ b/drivers/staging/fbtft/fbtft-io.c
@@ -1,6 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/errno.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/spi/spi.h>
 #include "fbtft.h"
 
@@ -13,7 +14,7 @@ int fbtft_write_spi(struct fbtft_par *par, void *buf, size_t len)
 	struct spi_message m;
 
 	fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len,
-		"%s(len=%d): ", __func__, len);
+			  "%s(len=%zu): ", __func__, len);
 
 	if (!par->spi) {
 		dev_err(par->info->device,
@@ -22,10 +23,6 @@ int fbtft_write_spi(struct fbtft_par *par, void *buf, size_t len)
 	}
 
 	spi_message_init(&m);
-	if (par->txbuf.dma && buf == par->txbuf.buf) {
-		t.tx_dma = par->txbuf.dma;
-		m.is_dma_mapped = 1;
-	}
 	spi_message_add_tail(&t, &m);
 	return spi_sync(par->spi, &m);
 }
@@ -50,7 +47,7 @@ int fbtft_write_spi_emulate_9(struct fbtft_par *par, void *buf, size_t len)
 	u64 val, dc, tmp;
 
 	fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len,
-		"%s(len=%d): ", __func__, len);
+			  "%s(len=%zu): ", __func__, len);
 
 	if (!par->extra) {
 		dev_err(par->info->device, "%s: error: par->extra is NULL\n",
@@ -75,7 +72,7 @@ int fbtft_write_spi_emulate_9(struct fbtft_par *par, void *buf, size_t len)
 			src++;
 		}
 		tmp |= ((*src & 0x0100) ? 1 : 0);
-		*(u64 *)dst = cpu_to_be64(tmp);
+		*(__be64 *)dst = cpu_to_be64(tmp);
 		dst += 8;
 		*dst++ = (u8)(*src++ & 0x00FF);
 		added++;
@@ -112,14 +109,15 @@ int fbtft_read_spi(struct fbtft_par *par, void *buf, size_t len)
 		txbuf[0] = par->startbyte | 0x3;
 		t.tx_buf = txbuf;
 		fbtft_par_dbg_hex(DEBUG_READ, par, par->info->device, u8,
-			txbuf, len, "%s(len=%d) txbuf => ", __func__, len);
+				  txbuf, len, "%s(len=%zu) txbuf => ",
+				  __func__, len);
 	}
 
 	spi_message_init(&m);
 	spi_message_add_tail(&t, &m);
 	ret = spi_sync(par->spi, &m);
 	fbtft_par_dbg_hex(DEBUG_READ, par, par->info->device, u8, buf, len,
-		"%s(len=%d) buf <= ", __func__, len);
+			  "%s(len=%zu) buf <= ", __func__, len);
 
 	return ret;
 }
@@ -138,39 +136,39 @@ int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len)
 #endif
 
 	fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len,
-		"%s(len=%d): ", __func__, len);
+			  "%s(len=%zu): ", __func__, len);
 
 	while (len--) {
-		data = *(u8 *) buf;
+		data = *(u8 *)buf;
 
 		/* Start writing by pulling down /WR */
-		gpio_set_value(par->gpio.wr, 0);
+		gpiod_set_value(par->gpio.wr, 1);
 
 		/* Set data */
 #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
 		if (data == prev_data) {
-			gpio_set_value(par->gpio.wr, 0); /* used as delay */
+			gpiod_set_value(par->gpio.wr, 1); /* used as delay */
 		} else {
 			for (i = 0; i < 8; i++) {
 				if ((data & 1) != (prev_data & 1))
-					gpio_set_value(par->gpio.db[i],
-								data & 1);
+					gpiod_set_value(par->gpio.db[i],
+							data & 1);
 				data >>= 1;
 				prev_data >>= 1;
 			}
 		}
 #else
 		for (i = 0; i < 8; i++) {
-			gpio_set_value(par->gpio.db[i], data & 1);
+			gpiod_set_value(par->gpio.db[i], data & 1);
 			data >>= 1;
 		}
 #endif
 
 		/* Pullup /WR */
-		gpio_set_value(par->gpio.wr, 1);
+		gpiod_set_value(par->gpio.wr, 0);
 
 #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
-		prev_data = *(u8 *) buf;
+		prev_data = *(u8 *)buf;
 #endif
 		buf++;
 	}
@@ -188,39 +186,39 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len)
 #endif
 
 	fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len,
-		"%s(len=%d): ", __func__, len);
+			  "%s(len=%zu): ", __func__, len);
 
 	while (len) {
-		data = *(u16 *) buf;
+		data = *(u16 *)buf;
 
 		/* Start writing by pulling down /WR */
-		gpio_set_value(par->gpio.wr, 0);
+		gpiod_set_value(par->gpio.wr, 1);
 
 		/* Set data */
 #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
 		if (data == prev_data) {
-			gpio_set_value(par->gpio.wr, 0); /* used as delay */
+			gpiod_set_value(par->gpio.wr, 1); /* used as delay */
 		} else {
 			for (i = 0; i < 16; i++) {
 				if ((data & 1) != (prev_data & 1))
-					gpio_set_value(par->gpio.db[i],
-								data & 1);
+					gpiod_set_value(par->gpio.db[i],
+							data & 1);
 				data >>= 1;
 				prev_data >>= 1;
 			}
 		}
 #else
 		for (i = 0; i < 16; i++) {
-			gpio_set_value(par->gpio.db[i], data & 1);
+			gpiod_set_value(par->gpio.db[i], data & 1);
 			data >>= 1;
 		}
 #endif
 
 		/* Pullup /WR */
-		gpio_set_value(par->gpio.wr, 1);
+		gpiod_set_value(par->gpio.wr, 0);
 
 #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
-		prev_data = *(u16 *) buf;
+		prev_data = *(u16 *)buf;
 #endif
 		buf += 2;
 		len -= 2;
diff --git a/drivers/staging/fbtft/fbtft-sysfs.c b/drivers/staging/fbtft/fbtft-sysfs.c
index c4cc452f9f2b..e45c90a03a90 100644
--- a/drivers/staging/fbtft/fbtft-sysfs.c
+++ b/drivers/staging/fbtft/fbtft-sysfs.c
@@ -1,10 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "fbtft.h"
 #include "internal.h"
 
 static int get_next_ulong(char **str_p, unsigned long *val, char *sep, int base)
 {
 	char *p_val;
-	int ret;
 
 	if (!str_p || !(*str_p))
 		return -EINVAL;
@@ -14,29 +14,22 @@ static int get_next_ulong(char **str_p, unsigned long *val, char *sep, int base)
 	if (!p_val)
 		return -EINVAL;
 
-	ret = kstrtoul(p_val, base, val);
-	if (ret)
-		return -EINVAL;
-
-	return 0;
+	return kstrtoul(p_val, base, val);
 }
 
-int fbtft_gamma_parse_str(struct fbtft_par *par, unsigned long *curves,
-						const char *str, int size)
+int fbtft_gamma_parse_str(struct fbtft_par *par, u32 *curves,
+			  const char *str, int size)
 {
 	char *str_p, *curve_p = NULL;
 	char *tmp;
 	unsigned long val = 0;
 	int ret = 0;
 	int curve_counter, value_counter;
-
-	fbtft_par_dbg(DEBUG_SYSFS, par, "%s() str=\n", __func__);
+	int _count;
 
 	if (!str || !curves)
 		return -EINVAL;
 
-	fbtft_par_dbg(DEBUG_SYSFS, par, "%s\n", str);
-
 	tmp = kmemdup(str, size + 1, GFP_KERNEL);
 	if (!tmp)
 		return -ENOMEM;
@@ -72,7 +65,10 @@ int fbtft_gamma_parse_str(struct fbtft_par *par, unsigned long *curves,
 			ret = get_next_ulong(&curve_p, &val, " ", 16);
 			if (ret)
 				goto out;
-			curves[curve_counter * par->gamma.num_values + value_counter] = val;
+
+			_count = curve_counter * par->gamma.num_values +
+				 value_counter;
+			curves[_count] = val;
 			value_counter++;
 		}
 		if (value_counter != par->gamma.num_values) {
@@ -94,7 +90,7 @@ out:
 }
 
 static ssize_t
-sprintf_gamma(struct fbtft_par *par, unsigned long *curves, char *buf)
+sprintf_gamma(struct fbtft_par *par, u32 *curves, char *buf)
 {
 	ssize_t len = 0;
 	unsigned int i, j;
@@ -103,8 +99,8 @@ sprintf_gamma(struct fbtft_par *par, unsigned long *curves, char *buf)
 	for (i = 0; i < par->gamma.num_curves; i++) {
 		for (j = 0; j < par->gamma.num_values; j++)
 			len += scnprintf(&buf[len], PAGE_SIZE,
-				"%04lx ", curves[i*par->gamma.num_values + j]);
-		buf[len-1] = '\n';
+			     "%04x ", curves[i * par->gamma.num_values + j]);
+		buf[len - 1] = '\n';
 	}
 	mutex_unlock(&par->gamma.lock);
 
@@ -112,12 +108,12 @@ sprintf_gamma(struct fbtft_par *par, unsigned long *curves, char *buf)
 }
 
 static ssize_t store_gamma_curve(struct device *device,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
 {
 	struct fb_info *fb_info = dev_get_drvdata(device);
 	struct fbtft_par *par = fb_info->par;
-	unsigned long tmp_curves[FBTFT_GAMMA_MAX_VALUES_TOTAL];
+	u32 tmp_curves[FBTFT_GAMMA_MAX_VALUES_TOTAL];
 	int ret;
 
 	ret = fbtft_gamma_parse_str(par, tmp_curves, buf, count);
@@ -130,7 +126,8 @@ static ssize_t store_gamma_curve(struct device *device,
 
 	mutex_lock(&par->gamma.lock);
 	memcpy(par->gamma.curves, tmp_curves,
-		par->gamma.num_curves * par->gamma.num_values * sizeof(tmp_curves[0]));
+	       par->gamma.num_curves * par->gamma.num_values *
+	       sizeof(tmp_curves[0]));
 	mutex_unlock(&par->gamma.lock);
 
 	return count;
@@ -149,7 +146,6 @@ static struct device_attribute gamma_device_attrs[] = {
 	__ATTR(gamma, 0660, show_gamma_curve, store_gamma_curve),
 };
 
-
 void fbtft_expand_debug_value(unsigned long *debug)
 {
 	switch (*debug & 0x7) {
@@ -178,8 +174,8 @@ void fbtft_expand_debug_value(unsigned long *debug)
 }
 
 static ssize_t store_debug(struct device *device,
-				struct device_attribute *attr,
-				const char *buf, size_t count)
+			   struct device_attribute *attr,
+			   const char *buf, size_t count)
 {
 	struct fb_info *fb_info = dev_get_drvdata(device);
 	struct fbtft_par *par = fb_info->par;
@@ -194,18 +190,17 @@ static ssize_t store_debug(struct device *device,
 }
 
 static ssize_t show_debug(struct device *device,
-				struct device_attribute *attr, char *buf)
+			  struct device_attribute *attr, char *buf)
 {
 	struct fb_info *fb_info = dev_get_drvdata(device);
 	struct fbtft_par *par = fb_info->par;
 
-	return snprintf(buf, PAGE_SIZE, "%lu\n", par->debug);
+	return sysfs_emit(buf, "%lu\n", par->debug);
 }
 
-static struct device_attribute debug_device_attr = \
+static struct device_attribute debug_device_attr =
 	__ATTR(debug, 0660, show_debug, store_debug);
 
-
 void fbtft_sysfs_init(struct fbtft_par *par)
 {
 	device_create_file(par->info->dev, &debug_device_attr);
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 7e9a506d65f9..317be17b95c1 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -1,20 +1,5 @@
-/*
- * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (C) 2013 Noralf Tronnes */
 
 #ifndef __LINUX_FBTFT_H
 #define __LINUX_FBTFT_H
@@ -24,15 +9,6 @@
 #include <linux/spi/spi.h>
 #include <linux/platform_device.h>
 
-
-#define FBTFT_NOP		0x00
-#define FBTFT_SWRESET	0x01
-#define FBTFT_RDDID		0x04
-#define FBTFT_RDDST		0x09
-#define FBTFT_CASET		0x2A
-#define FBTFT_RASET		0x2B
-#define FBTFT_RAMWR		0x2C
-
 #define FBTFT_ONBOARD_BACKLIGHT 2
 
 #define FBTFT_GPIO_NO_MATCH		0xFFFF
@@ -51,7 +27,7 @@
  */
 struct fbtft_gpio {
 	char name[FBTFT_GPIO_NAME_SIZE];
-	unsigned gpio;
+	struct gpio_desc *gpio;
 };
 
 struct fbtft_par;
@@ -88,16 +64,16 @@ struct fbtft_ops {
 	void (*write_register)(struct fbtft_par *par, int len, ...);
 
 	void (*set_addr_win)(struct fbtft_par *par,
-		int xs, int ys, int xe, int ye);
+			     int xs, int ys, int xe, int ye);
 	void (*reset)(struct fbtft_par *par);
 	void (*mkdirty)(struct fb_info *info, int from, int to);
 	void (*update_display)(struct fbtft_par *par,
-				unsigned start_line, unsigned end_line);
+			       unsigned int start_line, unsigned int end_line);
 	int (*init_display)(struct fbtft_par *par);
 	int (*blank)(struct fbtft_par *par, bool on);
 
 	unsigned long (*request_gpios_match)(struct fbtft_par *par,
-		const struct fbtft_gpio *gpio);
+					     const struct fbtft_gpio *gpio);
 	int (*request_gpios)(struct fbtft_par *par);
 	int (*verify_gpios)(struct fbtft_par *par);
 
@@ -105,7 +81,7 @@ struct fbtft_ops {
 	void (*unregister_backlight)(struct fbtft_par *par);
 
 	int (*set_var)(struct fbtft_par *par);
-	int (*set_gamma)(struct fbtft_par *par, unsigned long *curves);
+	int (*set_gamma)(struct fbtft_par *par, u32 *curves);
 };
 
 /**
@@ -128,16 +104,16 @@ struct fbtft_ops {
  * This structure is not stored by FBTFT except for init_sequence.
  */
 struct fbtft_display {
-	unsigned width;
-	unsigned height;
-	unsigned regwidth;
-	unsigned buswidth;
-	unsigned backlight;
+	unsigned int width;
+	unsigned int height;
+	unsigned int regwidth;
+	unsigned int buswidth;
+	unsigned int backlight;
 	struct fbtft_ops fbtftops;
-	unsigned bpp;
-	unsigned fps;
+	unsigned int bpp;
+	unsigned int fps;
 	int txbuflen;
-	int *init_sequence;
+	const s16 *init_sequence;
 	char *gamma;
 	int gamma_num;
 	int gamma_len;
@@ -158,10 +134,9 @@ struct fbtft_display {
  */
 struct fbtft_platform_data {
 	struct fbtft_display display;
-	const struct fbtft_gpio *gpios;
-	unsigned rotate;
+	unsigned int rotate;
 	bool bgr;
-	unsigned fps;
+	unsigned int fps;
 	int txbuflen;
 	u8 startbyte;
 	char *gamma;
@@ -222,48 +197,52 @@ struct fbtft_par {
 	u32 pseudo_palette[16];
 	struct {
 		void *buf;
-		dma_addr_t dma;
 		size_t len;
 	} txbuf;
 	u8 *buf;
 	u8 startbyte;
 	struct fbtft_ops fbtftops;
+	/* Spinlock to ensure thread-safe access to dirty_lines_start and dirty_lines_end */
 	spinlock_t dirty_lock;
-	unsigned dirty_lines_start;
-	unsigned dirty_lines_end;
+	unsigned int dirty_lines_start;
+	unsigned int dirty_lines_end;
 	struct {
-		int reset;
-		int dc;
-		int rd;
-		int wr;
-		int latch;
-		int cs;
-		int db[16];
-		int led[16];
-		int aux[16];
+		struct gpio_desc *reset;
+		struct gpio_desc *dc;
+		struct gpio_desc *rd;
+		struct gpio_desc *wr;
+		struct gpio_desc *latch;
+		struct gpio_desc *cs;
+		struct gpio_desc *db[16];
+		struct gpio_desc *led[16];
+		struct gpio_desc *aux[16];
 	} gpio;
-	int *init_sequence;
+	const s16 *init_sequence;
 	struct {
+		/* Mutex to synchronize access to gamma curve locking */
 		struct mutex lock;
-		unsigned long *curves;
+		u32 *curves;
 		int num_values;
 		int num_curves;
 	} gamma;
 	unsigned long debug;
 	bool first_update_done;
-	struct timespec update_time;
+	ktime_t update_time;
 	bool bgr;
 	void *extra;
+	bool polarity;
 };
 
-#define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__})/sizeof(int))
+#define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__}) / sizeof(int))
 
-#define write_reg(par, ...)                                              \
-	par->fbtftops.write_register(par, NUMARGS(__VA_ARGS__), __VA_ARGS__)
+#define write_reg(par, ...)                                            \
+	((par)->fbtftops.write_register(par, NUMARGS(__VA_ARGS__), __VA_ARGS__))
 
 /* fbtft-core.c */
+int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc);
+__printf(5, 6)
 void fbtft_dbg_hex(const struct device *dev, int groupsize,
-		   void *buf, size_t len, const char *fmt, ...);
+		   const void *buf, size_t len, const char *fmt, ...);
 struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 					struct device *dev,
 					struct fbtft_platform_data *pdata);
@@ -275,7 +254,7 @@ void fbtft_unregister_backlight(struct fbtft_par *par);
 int fbtft_init_display(struct fbtft_par *par);
 int fbtft_probe_common(struct fbtft_display *display, struct spi_device *sdev,
 		       struct platform_device *pdev);
-int fbtft_remove_common(struct device *dev, struct fb_info *info);
+void fbtft_remove_common(struct device *dev, struct fb_info *info);
 
 /* fbtft-io.c */
 int fbtft_write_spi(struct fbtft_par *par, void *buf, size_t len);
@@ -295,59 +274,63 @@ void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...);
 void fbtft_write_reg16_bus8(struct fbtft_par *par, int len, ...);
 void fbtft_write_reg16_bus16(struct fbtft_par *par, int len, ...);
 
+#define FBTFT_DT_TABLE(_compatible)						\
+static const struct of_device_id dt_ids[] = {					\
+	{ .compatible = _compatible },						\
+	{},									\
+};										\
+MODULE_DEVICE_TABLE(of, dt_ids);
+
+#define FBTFT_SPI_DRIVER(_name, _compatible, _display, _spi_ids)		\
+										\
+static int fbtft_driver_probe_spi(struct spi_device *spi)			\
+{										\
+	return fbtft_probe_common(_display, spi, NULL);				\
+}										\
+										\
+static void fbtft_driver_remove_spi(struct spi_device *spi)			\
+{										\
+	struct fb_info *info = spi_get_drvdata(spi);				\
+										\
+	fbtft_remove_common(&spi->dev, info);					\
+}										\
+										\
+static struct spi_driver fbtft_driver_spi_driver = {				\
+	.driver = {								\
+		.name = _name,							\
+		.of_match_table = dt_ids,					\
+	},									\
+	.id_table = _spi_ids,							\
+	.probe = fbtft_driver_probe_spi,					\
+	.remove = fbtft_driver_remove_spi,					\
+};
 
 #define FBTFT_REGISTER_DRIVER(_name, _compatible, _display)                \
 									   \
-static int fbtft_driver_probe_spi(struct spi_device *spi)                  \
-{                                                                          \
-	return fbtft_probe_common(_display, spi, NULL);                    \
-}                                                                          \
-									   \
-static int fbtft_driver_remove_spi(struct spi_device *spi)                 \
-{                                                                          \
-	struct fb_info *info = spi_get_drvdata(spi);                       \
-									   \
-	return fbtft_remove_common(&spi->dev, info);                       \
-}                                                                          \
-									   \
 static int fbtft_driver_probe_pdev(struct platform_device *pdev)           \
 {                                                                          \
 	return fbtft_probe_common(_display, NULL, pdev);                   \
 }                                                                          \
 									   \
-static int fbtft_driver_remove_pdev(struct platform_device *pdev)          \
+static void fbtft_driver_remove_pdev(struct platform_device *pdev)	   \
 {                                                                          \
 	struct fb_info *info = platform_get_drvdata(pdev);                 \
 									   \
-	return fbtft_remove_common(&pdev->dev, info);                      \
+	fbtft_remove_common(&pdev->dev, info);                             \
 }                                                                          \
 									   \
-static const struct of_device_id dt_ids[] = {                              \
-	{ .compatible = _compatible },                                     \
-	{},                                                                \
-};                                                                         \
-									   \
-MODULE_DEVICE_TABLE(of, dt_ids);                                           \
+FBTFT_DT_TABLE(_compatible)						   \
 									   \
-									   \
-static struct spi_driver fbtft_driver_spi_driver = {                       \
-	.driver = {                                                        \
-		.name   = _name,                                           \
-		.owner  = THIS_MODULE,                                     \
-		.of_match_table = of_match_ptr(dt_ids),                    \
-	},                                                                 \
-	.probe  = fbtft_driver_probe_spi,                                  \
-	.remove = fbtft_driver_remove_spi,                                 \
-};                                                                         \
+FBTFT_SPI_DRIVER(_name, _compatible, _display, NULL)			   \
 									   \
 static struct platform_driver fbtft_driver_platform_driver = {             \
 	.driver = {                                                        \
 		.name   = _name,                                           \
 		.owner  = THIS_MODULE,                                     \
-		.of_match_table = of_match_ptr(dt_ids),                    \
+		.of_match_table = dt_ids,                                  \
 	},                                                                 \
 	.probe  = fbtft_driver_probe_pdev,                                 \
-	.remove = fbtft_driver_remove_pdev,                                \
+	.remove = fbtft_driver_remove_pdev,				   \
 };                                                                         \
 									   \
 static int __init fbtft_driver_module_init(void)                           \
@@ -357,7 +340,10 @@ static int __init fbtft_driver_module_init(void)                           \
 	ret = spi_register_driver(&fbtft_driver_spi_driver);               \
 	if (ret < 0)                                                       \
 		return ret;                                                \
-	return platform_driver_register(&fbtft_driver_platform_driver);    \
+	ret = platform_driver_register(&fbtft_driver_platform_driver);     \
+	if (ret < 0)                                                       \
+		spi_unregister_driver(&fbtft_driver_spi_driver);           \
+	return ret;                                                        \
 }                                                                          \
 									   \
 static void __exit fbtft_driver_module_exit(void)                          \
@@ -369,52 +355,72 @@ static void __exit fbtft_driver_module_exit(void)                          \
 module_init(fbtft_driver_module_init);                                     \
 module_exit(fbtft_driver_module_exit);
 
+#define FBTFT_REGISTER_SPI_DRIVER(_name, _comp_vend, _comp_dev, _display)	\
+										\
+FBTFT_DT_TABLE(_comp_vend "," _comp_dev)					\
+										\
+static const struct spi_device_id spi_ids[] = {					\
+	{ .name = _comp_dev },							\
+	{},									\
+};										\
+MODULE_DEVICE_TABLE(spi, spi_ids);						\
+										\
+FBTFT_SPI_DRIVER(_name, _comp_vend "," _comp_dev, _display, spi_ids)		\
+										\
+module_spi_driver(fbtft_driver_spi_driver);
 
 /* Debug macros */
 
 /* shorthand debug levels */
 #define DEBUG_LEVEL_1	DEBUG_REQUEST_GPIOS
-#define DEBUG_LEVEL_2	(DEBUG_LEVEL_1 | DEBUG_DRIVER_INIT_FUNCTIONS | DEBUG_TIME_FIRST_UPDATE)
-#define DEBUG_LEVEL_3	(DEBUG_LEVEL_2 | DEBUG_RESET | DEBUG_INIT_DISPLAY | DEBUG_BLANK | DEBUG_REQUEST_GPIOS | DEBUG_FREE_GPIOS | DEBUG_VERIFY_GPIOS | DEBUG_BACKLIGHT | DEBUG_SYSFS)
-#define DEBUG_LEVEL_4	(DEBUG_LEVEL_2 | DEBUG_FB_READ | DEBUG_FB_WRITE | DEBUG_FB_FILLRECT | DEBUG_FB_COPYAREA | DEBUG_FB_IMAGEBLIT | DEBUG_FB_BLANK)
+#define DEBUG_LEVEL_2	(DEBUG_LEVEL_1 | DEBUG_DRIVER_INIT_FUNCTIONS        \
+				       | DEBUG_TIME_FIRST_UPDATE)
+#define DEBUG_LEVEL_3	(DEBUG_LEVEL_2 | DEBUG_RESET | DEBUG_INIT_DISPLAY   \
+				       | DEBUG_BLANK | DEBUG_REQUEST_GPIOS  \
+				       | DEBUG_FREE_GPIOS                   \
+				       | DEBUG_VERIFY_GPIOS                 \
+				       | DEBUG_BACKLIGHT | DEBUG_SYSFS)
+#define DEBUG_LEVEL_4	(DEBUG_LEVEL_2 | DEBUG_FB_READ | DEBUG_FB_WRITE     \
+				       | DEBUG_FB_FILLRECT                  \
+				       | DEBUG_FB_COPYAREA                  \
+				       | DEBUG_FB_IMAGEBLIT | DEBUG_FB_BLANK)
 #define DEBUG_LEVEL_5	(DEBUG_LEVEL_3 | DEBUG_UPDATE_DISPLAY)
 #define DEBUG_LEVEL_6	(DEBUG_LEVEL_4 | DEBUG_LEVEL_5)
 #define DEBUG_LEVEL_7	0xFFFFFFFF
 
-#define DEBUG_DRIVER_INIT_FUNCTIONS (1<<3)
-#define DEBUG_TIME_FIRST_UPDATE     (1<<4)
-#define DEBUG_TIME_EACH_UPDATE      (1<<5)
-#define DEBUG_DEFERRED_IO           (1<<6)
-#define DEBUG_FBTFT_INIT_FUNCTIONS  (1<<7)
+#define DEBUG_DRIVER_INIT_FUNCTIONS BIT(3)
+#define DEBUG_TIME_FIRST_UPDATE     BIT(4)
+#define DEBUG_TIME_EACH_UPDATE      BIT(5)
+#define DEBUG_DEFERRED_IO           BIT(6)
+#define DEBUG_FBTFT_INIT_FUNCTIONS  BIT(7)
 
 /* fbops */
-#define DEBUG_FB_READ               (1<<8)
-#define DEBUG_FB_WRITE              (1<<9)
-#define DEBUG_FB_FILLRECT           (1<<10)
-#define DEBUG_FB_COPYAREA           (1<<11)
-#define DEBUG_FB_IMAGEBLIT          (1<<12)
-#define DEBUG_FB_SETCOLREG          (1<<13)
-#define DEBUG_FB_BLANK              (1<<14)
+#define DEBUG_FB_READ               BIT(8)
+#define DEBUG_FB_WRITE              BIT(9)
+#define DEBUG_FB_FILLRECT           BIT(10)
+#define DEBUG_FB_COPYAREA           BIT(11)
+#define DEBUG_FB_IMAGEBLIT          BIT(12)
+#define DEBUG_FB_SETCOLREG          BIT(13)
+#define DEBUG_FB_BLANK              BIT(14)
 
-#define DEBUG_SYSFS                 (1<<16)
+#define DEBUG_SYSFS                 BIT(16)
 
 /* fbtftops */
-#define DEBUG_BACKLIGHT             (1<<17)
-#define DEBUG_READ                  (1<<18)
-#define DEBUG_WRITE                 (1<<19)
-#define DEBUG_WRITE_VMEM            (1<<20)
-#define DEBUG_WRITE_REGISTER        (1<<21)
-#define DEBUG_SET_ADDR_WIN          (1<<22)
-#define DEBUG_RESET                 (1<<23)
-#define DEBUG_MKDIRTY               (1<<24)
-#define DEBUG_UPDATE_DISPLAY        (1<<25)
-#define DEBUG_INIT_DISPLAY          (1<<26)
-#define DEBUG_BLANK                 (1<<27)
-#define DEBUG_REQUEST_GPIOS         (1<<28)
-#define DEBUG_FREE_GPIOS            (1<<29)
-#define DEBUG_REQUEST_GPIOS_MATCH   (1<<30)
-#define DEBUG_VERIFY_GPIOS          (1<<31)
-
+#define DEBUG_BACKLIGHT             BIT(17)
+#define DEBUG_READ                  BIT(18)
+#define DEBUG_WRITE                 BIT(19)
+#define DEBUG_WRITE_VMEM            BIT(20)
+#define DEBUG_WRITE_REGISTER        BIT(21)
+#define DEBUG_SET_ADDR_WIN          BIT(22)
+#define DEBUG_RESET                 BIT(23)
+#define DEBUG_MKDIRTY               BIT(24)
+#define DEBUG_UPDATE_DISPLAY        BIT(25)
+#define DEBUG_INIT_DISPLAY          BIT(26)
+#define DEBUG_BLANK                 BIT(27)
+#define DEBUG_REQUEST_GPIOS         BIT(28)
+#define DEBUG_FREE_GPIOS            BIT(29)
+#define DEBUG_REQUEST_GPIOS_MATCH   BIT(30)
+#define DEBUG_VERIFY_GPIOS          BIT(31)
 
 #define fbtft_init_dbg(dev, format, arg...)                  \
 do {                                                         \
@@ -425,15 +431,15 @@ do {                                                         \
 
 #define fbtft_par_dbg(level, par, format, arg...)            \
 do {                                                         \
-	if (unlikely(par->debug & level))                    \
-		dev_info(par->info->device, format, ##arg);  \
+	if (unlikely((par)->debug & (level)))                    \
+		dev_info((par)->info->device, format, ##arg);  \
 } while (0)
 
-
 #define fbtft_par_dbg_hex(level, par, dev, type, buf, num, format, arg...) \
 do {                                                                       \
-	if (unlikely(par->debug & level))                                  \
-		fbtft_dbg_hex(dev, sizeof(type), buf, num * sizeof(type), format, ##arg); \
+	if (unlikely((par)->debug & (level)))                                  \
+		fbtft_dbg_hex(dev, sizeof(type), buf,\
+			      (num) * sizeof(type), format, ##arg); \
 } while (0)
 
 #endif /* __LINUX_FBTFT_H */
diff --git a/drivers/staging/fbtft/fbtft_device.c b/drivers/staging/fbtft/fbtft_device.c
deleted file mode 100644
index fa916e88d549..000000000000
--- a/drivers/staging/fbtft/fbtft_device.c
+++ /dev/null
@@ -1,1515 +0,0 @@
-/*
- *
- * Copyright (C) 2013, Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/gpio.h>
-#include <linux/spi/spi.h>
-
-#include "fbtft.h"
-
-#define DRVNAME "fbtft_device"
-
-#define MAX_GPIOS 32
-
-static struct spi_device *spi_device;
-static struct platform_device *p_device;
-
-static char *name;
-module_param(name, charp, 0);
-MODULE_PARM_DESC(name, "Devicename (required). name=list => list all supported devices.");
-
-static unsigned rotate;
-module_param(rotate, uint, 0);
-MODULE_PARM_DESC(rotate,
-"Angle to rotate display counter clockwise: 0, 90, 180, 270");
-
-static unsigned busnum;
-module_param(busnum, uint, 0);
-MODULE_PARM_DESC(busnum, "SPI bus number (default=0)");
-
-static unsigned cs;
-module_param(cs, uint, 0);
-MODULE_PARM_DESC(cs, "SPI chip select (default=0)");
-
-static unsigned speed;
-module_param(speed, uint, 0);
-MODULE_PARM_DESC(speed, "SPI speed (override device default)");
-
-static int mode = -1;
-module_param(mode, int, 0);
-MODULE_PARM_DESC(mode, "SPI mode (override device default)");
-
-static char *gpios;
-module_param(gpios, charp, 0);
-MODULE_PARM_DESC(gpios,
-"List of gpios. Comma separated with the form: reset:23,dc:24 (when overriding the default, all gpios must be specified)");
-
-static unsigned fps;
-module_param(fps, uint, 0);
-MODULE_PARM_DESC(fps, "Frames per second (override driver default)");
-
-static char *gamma;
-module_param(gamma, charp, 0);
-MODULE_PARM_DESC(gamma,
-"String representation of Gamma Curve(s). Driver specific.");
-
-static int txbuflen;
-module_param(txbuflen, int, 0);
-MODULE_PARM_DESC(txbuflen, "txbuflen (override driver default)");
-
-static int bgr = -1;
-module_param(bgr, int, 0);
-MODULE_PARM_DESC(bgr,
-"BGR bit (supported by some drivers).");
-
-static unsigned startbyte;
-module_param(startbyte, uint, 0);
-MODULE_PARM_DESC(startbyte, "Sets the Start byte used by some SPI displays.");
-
-static bool custom;
-module_param(custom, bool, 0);
-MODULE_PARM_DESC(custom, "Add a custom display device. Use speed= argument to make it a SPI device, else platform_device");
-
-static unsigned width;
-module_param(width, uint, 0);
-MODULE_PARM_DESC(width, "Display width, used with the custom argument");
-
-static unsigned height;
-module_param(height, uint, 0);
-MODULE_PARM_DESC(height, "Display height, used with the custom argument");
-
-static unsigned buswidth = 8;
-module_param(buswidth, uint, 0);
-MODULE_PARM_DESC(buswidth, "Display bus width, used with the custom argument");
-
-static int init[FBTFT_MAX_INIT_SEQUENCE];
-static int init_num;
-module_param_array(init, int, &init_num, 0);
-MODULE_PARM_DESC(init, "Init sequence, used with the custom argument");
-
-static unsigned long debug;
-module_param(debug, ulong, 0);
-MODULE_PARM_DESC(debug,
-"level: 0-7 (the remaining 29 bits is for advanced usage)");
-
-static unsigned verbose = 3;
-module_param(verbose, uint, 0);
-MODULE_PARM_DESC(verbose,
-"0 silent, >0 show gpios, >1 show devices, >2 show devices before (default=3)");
-
-
-struct fbtft_device_display {
-	char *name;
-	struct spi_board_info *spi;
-	struct platform_device *pdev;
-};
-
-static void fbtft_device_pdev_release(struct device *dev);
-
-static int write_gpio16_wr_slow(struct fbtft_par *par, void *buf, size_t len);
-static void adafruit18_green_tab_set_addr_win(struct fbtft_par *par,
-	int xs, int ys, int xe, int ye);
-
-#define ADAFRUIT18_GAMMA \
-		"02 1c 07 12 37 32 29 2d 29 25 2B 39 00 01 03 10\n" \
-		"03 1d 07 06 2E 2C 29 2D 2E 2E 37 3F 00 00 02 10"
-
-static int hy28b_init_sequence[] = {
-	-1, 0x00e7, 0x0010, -1, 0x0000, 0x0001,
-	-1, 0x0001, 0x0100, -1, 0x0002, 0x0700,
-	-1, 0x0003, 0x1030, -1, 0x0004, 0x0000,
-	-1, 0x0008, 0x0207, -1, 0x0009, 0x0000,
-	-1, 0x000a, 0x0000, -1, 0x000c, 0x0001,
-	-1, 0x000d, 0x0000, -1, 0x000f, 0x0000,
-	-1, 0x0010, 0x0000, -1, 0x0011, 0x0007,
-	-1, 0x0012, 0x0000, -1, 0x0013, 0x0000,
-	-2, 50, -1, 0x0010, 0x1590, -1, 0x0011,
-	0x0227, -2, 50, -1, 0x0012, 0x009c, -2, 50,
-	-1, 0x0013, 0x1900, -1, 0x0029, 0x0023,
-	-1, 0x002b, 0x000e, -2, 50,
-	-1, 0x0020, 0x0000, -1, 0x0021, 0x0000,
-	-2, 50, -1, 0x0050, 0x0000,
-	-1, 0x0051, 0x00ef, -1, 0x0052, 0x0000,
-	-1, 0x0053, 0x013f, -1, 0x0060, 0xa700,
-	-1, 0x0061, 0x0001, -1, 0x006a, 0x0000,
-	-1, 0x0080, 0x0000, -1, 0x0081, 0x0000,
-	-1, 0x0082, 0x0000, -1, 0x0083, 0x0000,
-	-1, 0x0084, 0x0000, -1, 0x0085, 0x0000,
-	-1, 0x0090, 0x0010, -1, 0x0092, 0x0000,
-	-1, 0x0093, 0x0003, -1, 0x0095, 0x0110,
-	-1, 0x0097, 0x0000, -1, 0x0098, 0x0000,
-	-1, 0x0007, 0x0133, -1, 0x0020, 0x0000,
-	-1, 0x0021, 0x0000, -2, 100, -3 };
-
-#define HY28B_GAMMA \
-	"04 1F 4 7 7 0 7 7 6 0\n" \
-	"0F 00 1 7 4 0 0 0 6 7"
-
-static int pitft_init_sequence[] = {
-	-1, 0x01, -2, 5, -1, 0x28, -1, 0xEF,
-	0x03, 0x80, 0x02, -1, 0xCF, 0x00, 0xC1, 0x30,
-	-1, 0xED, 0x64, 0x03, 0x12, 0x81,
-	-1, 0xE8, 0x85, 0x00, 0x78,
-	-1, 0xCB, 0x39, 0x2C, 0x00, 0x34, 0x02,
-	-1, 0xF7, 0x20, -1, 0xEA, 0x00, 0x00,
-	-1, 0xC0, 0x23, -1, 0xC1, 0x10, -1, 0xC5,
-	0x3e, 0x28, -1, 0xC7, 0x86, -1, 0x3A, 0x55,
-	-1, 0xB1, 0x00, 0x18, -1, 0xB6, 0x08, 0x82,
-	0x27, -1, 0xF2, 0x00, -1, 0x26, 0x01,
-	-1, 0xE0, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08,
-	0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03,
-	0x0E, 0x09, 0x00, -1, 0xE1, 0x00, 0x0E, 0x14,
-	0x03, 0x11, 0x07, 0x31, 0xC1, 0x48,
-	0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F, -1,
-	0x11, -2, 100, -1, 0x29, -2, 20, -3 };
-
-static int waveshare32b_init_sequence[] = {
-	-1, 0xCB, 0x39, 0x2C, 0x00, 0x34, 0x02,
-	-1, 0xCF, 0x00, 0xC1, 0x30,
-	-1, 0xE8, 0x85, 0x00, 0x78, -1, 0xEA, 0x00,
-	0x00, -1, 0xED, 0x64, 0x03, 0x12, 0x81,
-	-1, 0xF7, 0x20, -1, 0xC0, 0x23, -1, 0xC1,
-	0x10, -1, 0xC5, 0x3e, 0x28, -1, 0xC7, 0x86,
-	-1, 0x36, 0x28, -1, 0x3A, 0x55, -1, 0xB1, 0x00,
-	0x18, -1, 0xB6, 0x08, 0x82, 0x27,
-	-1, 0xF2, 0x00, -1, 0x26, 0x01,
-	-1, 0xE0, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E,
-	0xF1, 0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00,
-	-1, 0xE1, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31,
-	0xC1, 0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F,
-	-1, 0x11, -2, 120, -1, 0x29, -1, 0x2c, -3 };
-
-/* Supported displays in alphabetical order */
-static struct fbtft_device_display displays[] = {
-	{
-		.name = "adafruit18",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_st7735r",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-				.gamma = ADAFRUIT18_GAMMA,
-			}
-		}
-	}, {
-		.name = "adafruit18_green",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_st7735r",
-			.max_speed_hz = 4000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-					.fbtftops.set_addr_win =
-					    adafruit18_green_tab_set_addr_win,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-				.gamma = ADAFRUIT18_GAMMA,
-			}
-		}
-	}, {
-		.name = "adafruit22",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_hx8340bn",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 9,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "led", 23 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "adafruit22a",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9340",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "adafruit28",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9341",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "adafruit13m",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ssd1306",
-			.max_speed_hz = 16000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "agm1264k-fl",
-		.pdev = &(struct platform_device) {
-			.name = "fb_agm1264k-fl",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = FBTFT_ONBOARD_BACKLIGHT,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			},
-			}
-		}
-	}, {
-		.name = "dogs102",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_uc1701",
-			.max_speed_hz = 8000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 13 },
-					{ "dc", 6 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "er_tftm050_2",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ra8875",
-			.max_speed_hz = 5000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-					.width = 480,
-					.height = 272,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "er_tftm070_5",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ra8875",
-			.max_speed_hz = 5000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-					.width = 800,
-					.height = 480,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "ew24ha0",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_uc1611",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "ew24ha0_9bit",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_uc1611",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 9,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "flexfb",
-		.spi = &(struct spi_board_info) {
-			.modalias = "flexfb",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "flexpfb",
-		.pdev = &(struct platform_device) {
-			.name = "flexpfb",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 17 },
-					{ "dc", 1 },
-					{ "wr", 0 },
-					{ "cs", 21 },
-					{ "db00", 9 },
-					{ "db01", 11 },
-					{ "db02", 18 },
-					{ "db03", 23 },
-					{ "db04", 24 },
-					{ "db05", 25 },
-					{ "db06", 8 },
-					{ "db07", 7 },
-					{ "led", 4 },
-					{},
-				},
-			},
-			}
-		}
-	}, {
-		.name = "freetronicsoled128",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ssd1351",
-			.max_speed_hz = 20000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = FBTFT_ONBOARD_BACKLIGHT,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 24 },
-					{ "dc", 25 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "hx8353d",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_hx8353d",
-			.max_speed_hz = 16000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 23 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "hy28a",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9320",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.startbyte = 0x70,
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "hy28b",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9325",
-			.max_speed_hz = 48000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-					.init_sequence = hy28b_init_sequence,
-				},
-				.startbyte = 0x70,
-				.bgr = true,
-				.fps = 50,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "led", 18 },
-					{},
-				},
-				.gamma = HY28B_GAMMA,
-			}
-		}
-	}, {
-		.name = "ili9481",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9481",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.regwidth = 16,
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 22 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "itdb24",
-		.pdev = &(struct platform_device) {
-			.name = "fb_s6d1121",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = false,
-				.gpios = (const struct fbtft_gpio []) {
-					/* Wiring for LCD adapter kit */
-					{ "reset", 7 },
-					{ "dc", 0 },	/* rev 2: 2 */
-					{ "wr", 1 },	/* rev 2: 3 */
-					{ "cs", 8 },
-					{ "db00", 17 },
-					{ "db01", 18 },
-					{ "db02", 21 }, /* rev 2: 27 */
-					{ "db03", 22 },
-					{ "db04", 23 },
-					{ "db05", 24 },
-					{ "db06", 25 },
-					{ "db07", 4 },
-					{}
-				},
-			},
-			}
-		}
-	}, {
-		.name = "itdb28",
-		.pdev = &(struct platform_device) {
-			.name = "fb_ili9325",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			},
-			}
-		}
-	}, {
-		.name = "itdb28_spi",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9325",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "mi0283qt-2",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_hx8347d",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.startbyte = 0x70,
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "mi0283qt-9a",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9341",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 9,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "mi0283qt-v2",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_watterott",
-			.max_speed_hz = 4000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "nokia3310",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_pcd8544",
-			.max_speed_hz = 400000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 23 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "nokia3310a",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_tls8204",
-			.max_speed_hz = 1000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 23 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "nokia5110",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9163",
-			.max_speed_hz = 12000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			}
-		}
-	}, {
-
-		.name = "piscreen",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9486",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.regwidth = 16,
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 22 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "pitft",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9340",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.chip_select = 0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-					.init_sequence = pitft_init_sequence,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "dc", 25 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "pioled",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ssd1351",
-			.max_speed_hz = 20000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 24 },
-					{ "dc", 25 },
-					{},
-				},
-				.gamma =	"0 2 2 2 2 2 2 2 "
-						"2 2 2 2 2 2 2 2 "
-						"2 2 2 2 2 2 2 2 "
-						"2 2 2 2 2 2 2 3 "
-						"3 3 3 3 3 3 3 3 "
-						"3 3 3 3 3 3 3 3 "
-						"3 3 3 4 4 4 4 4 "
-						"4 4 4 4 4 4 4"
-			}
-		}
-	}, {
-		.name = "rpi-display",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9341",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 23 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "s6d02a1",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_s6d02a1",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 23 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "sainsmart18",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_st7735r",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "sainsmart32",
-		.pdev = &(struct platform_device) {
-			.name = "fb_ssd1289",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 16,
-					.txbuflen = -2, /* disable buffer */
-					.backlight = 1,
-					.fbtftops.write = write_gpio16_wr_slow,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			},
-		},
-		}
-	}, {
-		.name = "sainsmart32_fast",
-		.pdev = &(struct platform_device) {
-			.name = "fb_ssd1289",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 16,
-					.txbuflen = -2, /* disable buffer */
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			},
-		},
-		}
-	}, {
-		.name = "sainsmart32_latched",
-		.pdev = &(struct platform_device) {
-			.name = "fb_ssd1289",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 16,
-					.txbuflen = -2, /* disable buffer */
-					.backlight = 1,
-					.fbtftops.write =
-						fbtft_write_gpio16_wr_latched,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			},
-		},
-		}
-	}, {
-		.name = "sainsmart32_spi",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ssd1289",
-			.max_speed_hz = 16000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "spidev",
-		.spi = &(struct spi_board_info) {
-			.modalias = "spidev",
-			.max_speed_hz = 500000,
-			.bus_num = 0,
-			.chip_select = 0,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "ssd1331",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ssd1331",
-			.max_speed_hz = 20000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 24 },
-					{ "dc", 25 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "tinylcd35",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_tinylcd",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "tm022hdh26",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9341",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 25 },
-					{ "dc", 24 },
-					{ "led", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "tontec35_9481", /* boards before 02 July 2014 */
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9481",
-			.max_speed_hz = 128000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 15 },
-					{ "dc", 25 },
-					{ "led_", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "tontec35_9486", /* boards after 02 July 2014 */
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9486",
-			.max_speed_hz = 128000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 15 },
-					{ "dc", 25 },
-					{ "led_", 18 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "upd161704",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_upd161704",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 24 },
-					{ "dc", 25 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "waveshare32b",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_ili9340",
-			.max_speed_hz = 48000000,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-					.backlight = 1,
-					.init_sequence =
-						waveshare32b_init_sequence,
-				},
-				.bgr = true,
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 27 },
-					{ "dc", 22 },
-					{},
-				},
-			}
-		}
-	}, {
-		.name = "waveshare22",
-		.spi = &(struct spi_board_info) {
-			.modalias = "fb_bd663474",
-			.max_speed_hz = 32000000,
-			.mode = SPI_MODE_3,
-			.platform_data = &(struct fbtft_platform_data) {
-				.display = {
-					.buswidth = 8,
-				},
-				.gpios = (const struct fbtft_gpio []) {
-					{ "reset", 24 },
-					{ "dc", 25 },
-					{},
-				},
-			}
-		}
-	}, {
-		/* This should be the last item.
-		   Used with the custom argument */
-		.name = "",
-		.spi = &(struct spi_board_info) {
-			.modalias = "",
-			.max_speed_hz = 0,
-			.mode = SPI_MODE_0,
-			.platform_data = &(struct fbtft_platform_data) {
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			}
-		},
-		.pdev = &(struct platform_device) {
-			.name = "",
-			.id = 0,
-			.dev = {
-			.release = fbtft_device_pdev_release,
-			.platform_data = &(struct fbtft_platform_data) {
-				.gpios = (const struct fbtft_gpio []) {
-					{},
-				},
-			},
-		},
-		},
-	}
-};
-
-static int write_gpio16_wr_slow(struct fbtft_par *par, void *buf, size_t len)
-{
-	u16 data;
-	int i;
-#ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
-	static u16 prev_data;
-#endif
-
-	fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len,
-		"%s(len=%d): ", __func__, len);
-
-	while (len) {
-		data = *(u16 *) buf;
-
-		/* Start writing by pulling down /WR */
-		gpio_set_value(par->gpio.wr, 0);
-
-		/* Set data */
-#ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
-		if (data == prev_data) {
-			gpio_set_value(par->gpio.wr, 0); /* used as delay */
-		} else {
-			for (i = 0; i < 16; i++) {
-				if ((data & 1) != (prev_data & 1))
-					gpio_set_value(par->gpio.db[i],
-								data & 1);
-				data >>= 1;
-				prev_data >>= 1;
-			}
-		}
-#else
-		for (i = 0; i < 16; i++) {
-			gpio_set_value(par->gpio.db[i], data & 1);
-			data >>= 1;
-		}
-#endif
-
-		/* Pullup /WR */
-		gpio_set_value(par->gpio.wr, 1);
-
-#ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO
-		prev_data = *(u16 *) buf;
-#endif
-		buf += 2;
-		len -= 2;
-	}
-
-	return 0;
-}
-
-static void adafruit18_green_tab_set_addr_win(struct fbtft_par *par,
-						int xs, int ys, int xe, int ye)
-{
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		"%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-	write_reg(par, 0x2A, 0, xs + 2, 0, xe + 2);
-	write_reg(par, 0x2B, 0, ys + 1, 0, ye + 1);
-	write_reg(par, 0x2C);
-}
-
-/* used if gpios parameter is present */
-static struct fbtft_gpio fbtft_device_param_gpios[MAX_GPIOS+1] = { };
-
-static void fbtft_device_pdev_release(struct device *dev)
-{
-/* Needed to silence this message:
-Device 'xxx' does not have a release() function, it is broken and must be fixed
-*/
-}
-
-static int spi_device_found(struct device *dev, void *data)
-{
-	struct spi_device *spi = container_of(dev, struct spi_device, dev);
-
-	pr_info(DRVNAME":      %s %s %dkHz %d bits mode=0x%02X\n",
-		spi->modalias, dev_name(dev), spi->max_speed_hz/1000,
-		spi->bits_per_word, spi->mode);
-
-	return 0;
-}
-
-static void pr_spi_devices(void)
-{
-	pr_info(DRVNAME":  SPI devices registered:\n");
-	bus_for_each_dev(&spi_bus_type, NULL, NULL, spi_device_found);
-}
-
-static int p_device_found(struct device *dev, void *data)
-{
-	struct platform_device
-	*pdev = container_of(dev, struct platform_device, dev);
-
-	if (strstr(pdev->name, "fb"))
-		pr_info(DRVNAME":      %s id=%d pdata? %s\n",
-				pdev->name, pdev->id,
-				pdev->dev.platform_data ? "yes" : "no");
-
-	return 0;
-}
-
-static void pr_p_devices(void)
-{
-	pr_info(DRVNAME":  'fb' Platform devices registered:\n");
-	bus_for_each_dev(&platform_bus_type, NULL, NULL, p_device_found);
-}
-
-#ifdef MODULE
-static void fbtft_device_spi_delete(struct spi_master *master, unsigned cs)
-{
-	struct device *dev;
-	char str[32];
-
-	snprintf(str, sizeof(str), "%s.%u", dev_name(&master->dev), cs);
-
-	dev = bus_find_device_by_name(&spi_bus_type, NULL, str);
-	if (dev) {
-		if (verbose)
-			pr_info(DRVNAME": Deleting %s\n", str);
-		device_del(dev);
-	}
-}
-
-static int fbtft_device_spi_device_register(struct spi_board_info *spi)
-{
-	struct spi_master *master;
-
-	master = spi_busnum_to_master(spi->bus_num);
-	if (!master) {
-		pr_err(DRVNAME ":  spi_busnum_to_master(%d) returned NULL\n",
-								spi->bus_num);
-		return -EINVAL;
-	}
-	/* make sure it's available */
-	fbtft_device_spi_delete(master, spi->chip_select);
-	spi_device = spi_new_device(master, spi);
-	put_device(&master->dev);
-	if (!spi_device) {
-		pr_err(DRVNAME ":    spi_new_device() returned NULL\n");
-		return -EPERM;
-	}
-	return 0;
-}
-#else
-static int fbtft_device_spi_device_register(struct spi_board_info *spi)
-{
-	return spi_register_board_info(spi, 1);
-}
-#endif
-
-static int __init fbtft_device_init(void)
-{
-	struct spi_board_info *spi = NULL;
-	struct fbtft_platform_data *pdata;
-	const struct fbtft_gpio *gpio = NULL;
-	char *p_gpio, *p_name, *p_num;
-	bool found = false;
-	int i = 0;
-	long val;
-	int ret = 0;
-
-	pr_debug("\n\n"DRVNAME": init\n");
-
-	if (name == NULL) {
-#ifdef MODULE
-		pr_err(DRVNAME":  missing module parameter: 'name'\n");
-		return -EINVAL;
-#else
-		return 0;
-#endif
-	}
-
-	if (init_num > FBTFT_MAX_INIT_SEQUENCE) {
-		pr_err(DRVNAME
-			":  init parameter: exceeded max array size: %d\n",
-			FBTFT_MAX_INIT_SEQUENCE);
-		return -EINVAL;
-	}
-
-	/* parse module parameter: gpios */
-	while ((p_gpio = strsep(&gpios, ","))) {
-		if (strchr(p_gpio, ':') == NULL) {
-			pr_err(DRVNAME
-				":  error: missing ':' in gpios parameter: %s\n",
-				p_gpio);
-			return -EINVAL;
-		}
-		p_num = p_gpio;
-		p_name = strsep(&p_num, ":");
-		if (p_name == NULL || p_num == NULL) {
-			pr_err(DRVNAME
-				":  something bad happened parsing gpios parameter: %s\n",
-				p_gpio);
-			return -EINVAL;
-		}
-		ret = kstrtol(p_num, 10, &val);
-		if (ret) {
-			pr_err(DRVNAME
-				":  could not parse number in gpios parameter: %s:%s\n",
-				p_name, p_num);
-			return -EINVAL;
-		}
-		strcpy(fbtft_device_param_gpios[i].name, p_name);
-		fbtft_device_param_gpios[i++].gpio = (int) val;
-		if (i == MAX_GPIOS) {
-			pr_err(DRVNAME
-				":  gpios parameter: exceeded max array size: %d\n",
-				MAX_GPIOS);
-			return -EINVAL;
-		}
-	}
-	if (fbtft_device_param_gpios[0].name[0])
-		gpio = fbtft_device_param_gpios;
-
-	if (verbose > 2)
-		pr_spi_devices(); /* print list of registered SPI devices */
-
-	if (verbose > 2)
-		pr_p_devices(); /* print list of 'fb' platform devices */
-
-	pr_debug(DRVNAME":  name='%s', busnum=%d, cs=%d\n", name, busnum, cs);
-
-	if (rotate > 0 && rotate < 4) {
-		rotate = (4 - rotate) * 90;
-		pr_warn("argument 'rotate' should be an angle. Values 1-3 is deprecated. Setting it to %d.\n",
-			rotate);
-	}
-	if (rotate != 0 && rotate != 90 && rotate != 180 && rotate != 270) {
-		pr_warn("argument 'rotate' illegal value: %d. Setting it to 0.\n",
-			rotate);
-		rotate = 0;
-	}
-
-	/* name=list lists all supported displays */
-	if (strncmp(name, "list", 32) == 0) {
-		pr_info(DRVNAME":  Supported displays:\n");
-
-		for (i = 0; i < ARRAY_SIZE(displays); i++)
-			pr_info(DRVNAME":      %s\n", displays[i].name);
-		return -ECANCELED;
-	}
-
-	if (custom) {
-		i = ARRAY_SIZE(displays) - 1;
-		displays[i].name = name;
-		if (speed == 0) {
-			displays[i].pdev->name = name;
-			displays[i].spi = NULL;
-		} else {
-			strncpy(displays[i].spi->modalias, name, SPI_NAME_SIZE);
-			displays[i].pdev = NULL;
-		}
-	}
-
-	for (i = 0; i < ARRAY_SIZE(displays); i++) {
-		if (strncmp(name, displays[i].name, 32) == 0) {
-			if (displays[i].spi) {
-				spi = displays[i].spi;
-				spi->chip_select = cs;
-				spi->bus_num = busnum;
-				if (speed)
-					spi->max_speed_hz = speed;
-				if (mode != -1)
-					spi->mode = mode;
-				pdata = (void *)spi->platform_data;
-			} else if (displays[i].pdev) {
-				p_device = displays[i].pdev;
-				pdata = p_device->dev.platform_data;
-			} else {
-				pr_err(DRVNAME": broken displays array\n");
-				return -EINVAL;
-			}
-
-			pdata->rotate = rotate;
-			if (bgr == 0)
-				pdata->bgr = false;
-			else if (bgr == 1)
-				pdata->bgr = true;
-			if (startbyte)
-				pdata->startbyte = startbyte;
-			if (gamma)
-				pdata->gamma = gamma;
-			pdata->display.debug = debug;
-			if (fps)
-				pdata->fps = fps;
-			if (txbuflen)
-				pdata->txbuflen = txbuflen;
-			if (init_num)
-				pdata->display.init_sequence = init;
-			if (gpio)
-				pdata->gpios = gpio;
-			if (custom) {
-				pdata->display.width = width;
-				pdata->display.height = height;
-				pdata->display.buswidth = buswidth;
-				pdata->display.backlight = 1;
-			}
-
-			if (displays[i].spi) {
-				ret = fbtft_device_spi_device_register(spi);
-				if (ret) {
-					pr_err(DRVNAME
-						": failed to register SPI device\n");
-					return ret;
-				}
-			} else {
-				ret = platform_device_register(p_device);
-				if (ret < 0) {
-					pr_err(DRVNAME
-						":    platform_device_register() returned %d\n",
-						ret);
-					return ret;
-				}
-			}
-			found = true;
-			break;
-		}
-	}
-
-	if (!found) {
-		pr_err(DRVNAME":  display not supported: '%s'\n", name);
-		return -EINVAL;
-	}
-
-	if (verbose && pdata && pdata->gpios) {
-		gpio = pdata->gpios;
-		pr_info(DRVNAME":  GPIOS used by '%s':\n", name);
-		found = false;
-		while (verbose && gpio->name[0]) {
-			pr_info(DRVNAME":    '%s' = GPIO%d\n",
-				gpio->name, gpio->gpio);
-			gpio++;
-			found = true;
-		}
-		if (!found)
-			pr_info(DRVNAME":    (none)\n");
-	}
-
-	if (spi_device && (verbose > 1))
-		pr_spi_devices();
-	if (p_device && (verbose > 1))
-		pr_p_devices();
-
-	return 0;
-}
-
-static void __exit fbtft_device_exit(void)
-{
-	pr_debug(DRVNAME" - exit\n");
-
-	if (spi_device) {
-		device_del(&spi_device->dev);
-		kfree(spi_device);
-	}
-
-	if (p_device)
-		platform_device_unregister(p_device);
-
-}
-
-arch_initcall(fbtft_device_init);
-module_exit(fbtft_device_exit);
-
-MODULE_DESCRIPTION("Add a FBTFT device.");
-MODULE_AUTHOR("Noralf Tronnes");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/flexfb.c b/drivers/staging/fbtft/flexfb.c
deleted file mode 100644
index c763efc5de7d..000000000000
--- a/drivers/staging/fbtft/flexfb.c
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * Generic FB driver for TFT LCD displays
- *
- * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/delay.h>
-
-#include "fbtft.h"
-
-#define DRVNAME	    "flexfb"
-
-static char *chip;
-module_param(chip, charp, 0);
-MODULE_PARM_DESC(chip, "LCD controller");
-
-static unsigned int width;
-module_param(width, uint, 0);
-MODULE_PARM_DESC(width, "Display width");
-
-static unsigned int height;
-module_param(height, uint, 0);
-MODULE_PARM_DESC(height, "Display height");
-
-static int init[512];
-static int init_num;
-module_param_array(init, int, &init_num, 0);
-MODULE_PARM_DESC(init, "Init sequence");
-
-static unsigned int setaddrwin;
-module_param(setaddrwin, uint, 0);
-MODULE_PARM_DESC(setaddrwin, "Which set_addr_win() implementation to use");
-
-static unsigned int buswidth = 8;
-module_param(buswidth, uint, 0);
-MODULE_PARM_DESC(buswidth, "Width of databus (default: 8)");
-
-static unsigned int regwidth = 8;
-module_param(regwidth, uint, 0);
-MODULE_PARM_DESC(regwidth, "Width of controller register (default: 8)");
-
-static bool nobacklight;
-module_param(nobacklight, bool, 0);
-MODULE_PARM_DESC(nobacklight, "Turn off backlight functionality.");
-
-static bool latched;
-module_param(latched, bool, 0);
-MODULE_PARM_DESC(latched, "Use with latched 16-bit databus");
-
-static int *initp;
-static int initp_num;
-
-/* default init sequences */
-static int st7735r_init[] = {
--1, 0x01, -2, 150, -1, 0x11, -2, 500, -1, 0xB1, 0x01, 0x2C, 0x2D, -1, 0xB2, 0x01, 0x2C, 0x2D, -1, 0xB3, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D,
--1, 0xB4, 0x07, -1, 0xC0, 0xA2, 0x02, 0x84, -1, 0xC1, 0xC5, -1, 0xC2, 0x0A, 0x00, -1, 0xC3, 0x8A, 0x2A, -1, 0xC4, 0x8A, 0xEE, -1, 0xC5, 0x0E,
--1, 0x20, -1, 0x36, 0xC0, -1, 0x3A, 0x05, -1, 0xE0, 0x0f, 0x1a, 0x0f, 0x18, 0x2f, 0x28, 0x20, 0x22, 0x1f, 0x1b, 0x23, 0x37, 0x00, 0x07, 0x02, 0x10,
--1, 0xE1, 0x0f, 0x1b, 0x0f, 0x17, 0x33, 0x2c, 0x29, 0x2e, 0x30, 0x30, 0x39, 0x3f, 0x00, 0x07, 0x03, 0x10, -1, 0x29, -2, 100, -1, 0x13, -2, 10, -3 };
-
-static int ssd1289_init[] = {
--1, 0x00, 0x0001, -1, 0x03, 0xA8A4, -1, 0x0C, 0x0000, -1, 0x0D, 0x080C, -1, 0x0E, 0x2B00, -1, 0x1E, 0x00B7, -1, 0x01, 0x2B3F, -1, 0x02, 0x0600,
--1, 0x10, 0x0000, -1, 0x11, 0x6070, -1, 0x05, 0x0000, -1, 0x06, 0x0000, -1, 0x16, 0xEF1C, -1, 0x17, 0x0003, -1, 0x07, 0x0233, -1, 0x0B, 0x0000,
--1, 0x0F, 0x0000, -1, 0x41, 0x0000, -1, 0x42, 0x0000, -1, 0x48, 0x0000, -1, 0x49, 0x013F, -1, 0x4A, 0x0000, -1, 0x4B, 0x0000, -1, 0x44, 0xEF00,
--1, 0x45, 0x0000, -1, 0x46, 0x013F, -1, 0x30, 0x0707, -1, 0x31, 0x0204, -1, 0x32, 0x0204, -1, 0x33, 0x0502, -1, 0x34, 0x0507, -1, 0x35, 0x0204,
--1, 0x36, 0x0204, -1, 0x37, 0x0502, -1, 0x3A, 0x0302, -1, 0x3B, 0x0302, -1, 0x23, 0x0000, -1, 0x24, 0x0000, -1, 0x25, 0x8000, -1, 0x4f, 0x0000,
--1, 0x4e, 0x0000, -1, 0x22, -3 };
-
-static int hx8340bn_init[] = {
--1, 0xC1, 0xFF, 0x83, 0x40, -1, 0x11, -2, 150, -1, 0xCA, 0x70, 0x00, 0xD9, -1, 0xB0, 0x01, 0x11,
--1, 0xC9, 0x90, 0x49, 0x10, 0x28, 0x28, 0x10, 0x00, 0x06, -2, 20, -1, 0xC2, 0x60, 0x71, 0x01, 0x0E, 0x05, 0x02, 0x09, 0x31, 0x0A,
--1, 0xC3, 0x67, 0x30, 0x61, 0x17, 0x48, 0x07, 0x05, 0x33, -2, 10, -1, 0xB5, 0x35, 0x20, 0x45, -1, 0xB4, 0x33, 0x25, 0x4C, -2, 10,
--1, 0x3A, 0x05, -1, 0x29, -2, 10, -3 };
-
-static int ili9225_init[] = {
--1, 0x0001, 0x011C, -1, 0x0002, 0x0100, -1, 0x0003, 0x1030, -1, 0x0008, 0x0808, -1, 0x000C, 0x0000, -1, 0x000F, 0x0A01, -1, 0x0020, 0x0000,
--1, 0x0021, 0x0000, -2, 50, -1, 0x0010, 0x0A00, -1, 0x0011, 0x1038, -2, 50, -1, 0x0012, 0x1121, -1, 0x0013, 0x004E, -1, 0x0014, 0x676F,
--1, 0x0030, 0x0000, -1, 0x0031, 0x00DB, -1, 0x0032, 0x0000, -1, 0x0033, 0x0000, -1, 0x0034, 0x00DB, -1, 0x0035, 0x0000, -1, 0x0036, 0x00AF,
--1, 0x0037, 0x0000, -1, 0x0038, 0x00DB, -1, 0x0039, 0x0000, -1, 0x0050, 0x0000, -1, 0x0051, 0x060A, -1, 0x0052, 0x0D0A, -1, 0x0053, 0x0303,
--1, 0x0054, 0x0A0D, -1, 0x0055, 0x0A06, -1, 0x0056, 0x0000, -1, 0x0057, 0x0303, -1, 0x0058, 0x0000, -1, 0x0059, 0x0000, -2, 50,
--1, 0x0007, 0x1017, -2, 50, -3 };
-
-static int ili9320_init[] = {
--1, 0x00E5, 0x8000, -1, 0x0000, 0x0001, -1, 0x0001, 0x0100, -1, 0x0002, 0x0700, -1, 0x0003, 0x1030, -1, 0x0004, 0x0000, -1, 0x0008, 0x0202,
--1, 0x0009, 0x0000, -1, 0x000A, 0x0000, -1, 0x000C, 0x0000, -1, 0x000D, 0x0000, -1, 0x000F, 0x0000, -1, 0x0010, 0x0000, -1, 0x0011, 0x0007,
--1, 0x0012, 0x0000, -1, 0x0013, 0x0000, -2, 200, -1, 0x0010, 0x17B0, -1, 0x0011, 0x0031, -2, 50, -1, 0x0012, 0x0138, -2, 50, -1, 0x0013, 0x1800,
--1, 0x0029, 0x0008, -2, 50, -1, 0x0020, 0x0000, -1, 0x0021, 0x0000, -1, 0x0030, 0x0000, -1, 0x0031, 0x0505, -1, 0x0032, 0x0004,
--1, 0x0035, 0x0006, -1, 0x0036, 0x0707, -1, 0x0037, 0x0105, -1, 0x0038, 0x0002, -1, 0x0039, 0x0707, -1, 0x003C, 0x0704, -1, 0x003D, 0x0807,
--1, 0x0050, 0x0000, -1, 0x0051, 0x00EF, -1, 0x0052, 0x0000, -1, 0x0053, 0x013F, -1, 0x0060, 0x2700, -1, 0x0061, 0x0001, -1, 0x006A, 0x0000,
--1, 0x0080, 0x0000, -1, 0x0081, 0x0000, -1, 0x0082, 0x0000, -1, 0x0083, 0x0000, -1, 0x0084, 0x0000, -1, 0x0085, 0x0000, -1, 0x0090, 0x0010,
--1, 0x0092, 0x0000, -1, 0x0093, 0x0003, -1, 0x0095, 0x0110, -1, 0x0097, 0x0000, -1, 0x0098, 0x0000, -1, 0x0007, 0x0173, -3 };
-
-static int ili9325_init[] = {
--1, 0x00E3, 0x3008, -1, 0x00E7, 0x0012, -1, 0x00EF, 0x1231, -1, 0x0001, 0x0100, -1, 0x0002, 0x0700, -1, 0x0003, 0x1030, -1, 0x0004, 0x0000,
--1, 0x0008, 0x0207, -1, 0x0009, 0x0000, -1, 0x000A, 0x0000, -1, 0x000C, 0x0000, -1, 0x000D, 0x0000, -1, 0x000F, 0x0000, -1, 0x0010, 0x0000,
--1, 0x0011, 0x0007, -1, 0x0012, 0x0000, -1, 0x0013, 0x0000, -2, 200, -1, 0x0010, 0x1690, -1, 0x0011, 0x0223, -2, 50, -1, 0x0012, 0x000D, -2, 50,
--1, 0x0013, 0x1200, -1, 0x0029, 0x000A, -1, 0x002B, 0x000C, -2, 50, -1, 0x0020, 0x0000, -1, 0x0021, 0x0000, -1, 0x0030, 0x0000,
--1, 0x0031, 0x0506, -1, 0x0032, 0x0104, -1, 0x0035, 0x0207, -1, 0x0036, 0x000F, -1, 0x0037, 0x0306, -1, 0x0038, 0x0102, -1, 0x0039, 0x0707,
--1, 0x003C, 0x0702, -1, 0x003D, 0x1604, -1, 0x0050, 0x0000, -1, 0x0051, 0x00EF, -1, 0x0052, 0x0000, -1, 0x0053, 0x013F, -1, 0x0060, 0xA700,
--1, 0x0061, 0x0001, -1, 0x006A, 0x0000, -1, 0x0080, 0x0000, -1, 0x0081, 0x0000, -1, 0x0082, 0x0000, -1, 0x0083, 0x0000, -1, 0x0084, 0x0000,
--1, 0x0085, 0x0000, -1, 0x0090, 0x0010, -1, 0x0092, 0x0600, -1, 0x0007, 0x0133, -3 };
-
-static int ili9341_init[] = {
--1, 0x28, -2, 20, -1, 0xCF, 0x00, 0x83, 0x30, -1, 0xED, 0x64, 0x03, 0x12, 0x81, -1, 0xE8, 0x85, 0x01, 0x79,
--1, 0xCB, 0x39, 0x2c, 0x00, 0x34, 0x02, -1, 0xF7, 0x20, -1, 0xEA, 0x00, 0x00, -1, 0xC0, 0x26, -1, 0xC1, 0x11,
--1, 0xC5, 0x35, 0x3E, -1, 0xC7, 0xBE, -1, 0xB1, 0x00, 0x1B, -1, 0xB6, 0x0a, 0x82, 0x27, 0x00, -1, 0xB7, 0x07,
--1, 0x3A, 0x55, -1, 0x36, 0x48, -1, 0x11, -2, 120, -1, 0x29, -2, 20, -3 };
-
-static int ssd1351_init[] = { -1, 0xfd, 0x12, -1, 0xfd, 0xb1, -1, 0xae, -1, 0xb3, 0xf1, -1, 0xca, 0x7f, -1, 0xa0, 0x74,
-			      -1, 0x15, 0x00, 0x7f, -1, 0x75, 0x00, 0x7f, -1, 0xa1, 0x00, -1, 0xa2, 0x00, -1, 0xb5, 0x00,
-			      -1, 0xab, 0x01, -1, 0xb1, 0x32, -1, 0xb4, 0xa0, 0xb5, 0x55, -1, 0xbb, 0x17, -1, 0xbe, 0x05,
-			      -1, 0xc1, 0xc8, 0x80, 0xc8, -1, 0xc7, 0x0f, -1, 0xb6, 0x01, -1, 0xa6, -1, 0xaf, -3 };
-
-/**
- * struct flexfb_lcd_controller - Describes the LCD controller properties
- * @name: Model name of the chip
- * @width: Width of display in pixels
- * @height: Height of display in pixels
- * @setaddrwin: Which set_addr_win() implementation to use
- * @regwidth: LCD Controller Register width in bits
- * @init_seq: LCD initialization sequence
- * @init_seq_sz: Size of LCD initialization sequence
- */
-struct flexfb_lcd_controller {
-	const char *name;
-	unsigned int width;
-	unsigned int height;
-	unsigned int setaddrwin;
-	unsigned int regwidth;
-	int *init_seq;
-	int init_seq_sz;
-};
-
-static const struct flexfb_lcd_controller flexfb_chip_table[] = {
-	{
-		.name = "st7735r",
-		.width = 120,
-		.height = 160,
-		.init_seq = st7735r_init,
-		.init_seq_sz = ARRAY_SIZE(st7735r_init),
-	},
-	{
-		.name = "hx8340bn",
-		.width = 176,
-		.height = 220,
-		.init_seq = hx8340bn_init,
-		.init_seq_sz = ARRAY_SIZE(hx8340bn_init),
-	},
-	{
-		.name = "ili9225",
-		.width = 176,
-		.height = 220,
-		.regwidth = 16,
-		.init_seq = ili9225_init,
-		.init_seq_sz = ARRAY_SIZE(ili9225_init),
-	},
-	{
-		.name = "ili9225",
-		.width = 176,
-		.height = 220,
-		.regwidth = 16,
-		.init_seq = ili9225_init,
-		.init_seq_sz = ARRAY_SIZE(ili9225_init),
-	},
-	{
-		.name = "ili9225",
-		.width = 176,
-		.height = 220,
-		.regwidth = 16,
-		.init_seq = ili9225_init,
-		.init_seq_sz = ARRAY_SIZE(ili9225_init),
-	},
-	{
-		.name = "ili9320",
-		.width = 240,
-		.height = 320,
-		.setaddrwin = 1,
-		.regwidth = 16,
-		.init_seq = ili9320_init,
-		.init_seq_sz = ARRAY_SIZE(ili9320_init),
-	},
-	{
-		.name = "ili9325",
-		.width = 240,
-		.height = 320,
-		.setaddrwin = 1,
-		.regwidth = 16,
-		.init_seq = ili9325_init,
-		.init_seq_sz = ARRAY_SIZE(ili9325_init),
-	},
-	{
-		.name = "ili9341",
-		.width = 240,
-		.height = 320,
-		.init_seq = ili9341_init,
-		.init_seq_sz = ARRAY_SIZE(ili9341_init),
-	},
-	{
-		.name = "ssd1289",
-		.width = 240,
-		.height = 320,
-		.setaddrwin = 2,
-		.regwidth = 16,
-		.init_seq = ssd1289_init,
-		.init_seq_sz = ARRAY_SIZE(ssd1289_init),
-	},
-	{
-		.name = "ssd1351",
-		.width = 128,
-		.height = 128,
-		.setaddrwin = 3,
-		.init_seq = ssd1351_init,
-		.init_seq_sz = ARRAY_SIZE(ssd1351_init),
-	},
-};
-
-/* ili9320, ili9325 */
-static void flexfb_set_addr_win_1(struct fbtft_par *par,
-				  int xs, int ys, int xe, int ye)
-{
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par, "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n",
-		      __func__, xs, ys, xe, ye);
-	switch (par->info->var.rotate) {
-	/* R20h = Horizontal GRAM Start Address */
-	/* R21h = Vertical GRAM Start Address */
-	case 0:
-		write_reg(par, 0x0020, xs);
-		write_reg(par, 0x0021, ys);
-		break;
-	case 180:
-		write_reg(par, 0x0020, width - 1 - xs);
-		write_reg(par, 0x0021, height - 1 - ys);
-		break;
-	case 270:
-		write_reg(par, 0x0020, width - 1 - ys);
-		write_reg(par, 0x0021, xs);
-		break;
-	case 90:
-		write_reg(par, 0x0020, ys);
-		write_reg(par, 0x0021, height - 1 - xs);
-		break;
-	}
-	write_reg(par, 0x0022); /* Write Data to GRAM */
-}
-
-/* ssd1289 */
-static void flexfb_set_addr_win_2(struct fbtft_par *par,
-				  int xs, int ys, int xe, int ye)
-{
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		      "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n",
-		      __func__, xs, ys, xe, ye);
-
-	switch (par->info->var.rotate) {
-	/* R4Eh - Set GDDRAM X address counter */
-	/* R4Fh - Set GDDRAM Y address counter */
-	case 0:
-		write_reg(par, 0x4e, xs);
-		write_reg(par, 0x4f, ys);
-		break;
-	case 180:
-		write_reg(par, 0x4e, par->info->var.xres - 1 - xs);
-		write_reg(par, 0x4f, par->info->var.yres - 1 - ys);
-		break;
-	case 270:
-		write_reg(par, 0x4e, par->info->var.yres - 1 - ys);
-		write_reg(par, 0x4f, xs);
-		break;
-	case 90:
-		write_reg(par, 0x4e, ys);
-		write_reg(par, 0x4f, par->info->var.xres - 1 - xs);
-		break;
-	}
-
-	/* R22h - RAM data write */
-	write_reg(par, 0x22, 0);
-}
-
-/* ssd1351 */
-static void set_addr_win_3(struct fbtft_par *par,
-			   int xs, int ys, int xe, int ye)
-{
-	fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
-		      "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__,
-		      xs, ys, xe, ye);
-
-	write_reg(par, 0x15, xs, xe);
-	write_reg(par, 0x75, ys, ye);
-	write_reg(par, 0x5C);
-}
-
-static int flexfb_verify_gpios_dc(struct fbtft_par *par)
-{
-	fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__);
-
-	if (par->gpio.dc < 0) {
-		dev_err(par->info->device,
-			"Missing info about 'dc' gpio. Aborting.\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int flexfb_verify_gpios_db(struct fbtft_par *par)
-{
-	int i;
-	int num_db = buswidth;
-
-	fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__);
-
-	if (par->gpio.dc < 0) {
-		dev_err(par->info->device, "Missing info about 'dc' gpio. Aborting.\n");
-		return -EINVAL;
-	}
-	if (par->gpio.wr < 0) {
-		dev_err(par->info->device, "Missing info about 'wr' gpio. Aborting.\n");
-		return -EINVAL;
-	}
-	if (latched && (par->gpio.latch < 0)) {
-		dev_err(par->info->device, "Missing info about 'latch' gpio. Aborting.\n");
-		return -EINVAL;
-	}
-	if (latched)
-		num_db = buswidth / 2;
-	for (i = 0; i < num_db; i++) {
-		if (par->gpio.db[i] < 0) {
-			dev_err(par->info->device,
-				"Missing info about 'db%02d' gpio. Aborting.\n",
-				i);
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static void flexfb_chip_load_param(const struct flexfb_lcd_controller *chip)
-{
-	if (!width)
-		width = chip->width;
-	if (!height)
-		height = chip->height;
-	setaddrwin = chip->setaddrwin;
-	if (chip->regwidth)
-		regwidth = chip->regwidth;
-	if (!init_num) {
-		initp = chip->init_seq;
-		initp_num = chip->init_seq_sz;
-	}
-}
-
-static struct fbtft_display flex_display = { };
-
-static int flexfb_chip_init(const struct device *dev)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(flexfb_chip_table); i++)
-		if (!strcmp(chip, flexfb_chip_table[i].name)) {
-			flexfb_chip_load_param(&flexfb_chip_table[i]);
-			return 0;
-		}
-
-	dev_err(dev, "chip=%s is not supported\n", chip);
-
-	return -EINVAL;
-}
-
-static int flexfb_probe_common(struct spi_device *sdev,
-			       struct platform_device *pdev)
-{
-	struct device *dev;
-	struct fb_info *info;
-	struct fbtft_par *par;
-	int ret;
-
-	initp = init;
-	initp_num = init_num;
-
-	if (sdev)
-		dev = &sdev->dev;
-	else
-		dev = &pdev->dev;
-
-	fbtft_init_dbg(dev, "%s(%s)\n", __func__,
-		       sdev ? "'SPI device'" : "'Platform device'");
-
-	if (chip) {
-		ret = flexfb_chip_init(dev);
-		if (ret)
-			return ret;
-	}
-
-	if (width == 0 || height == 0) {
-		dev_err(dev, "argument(s) missing: width and height has to be set.\n");
-		return -EINVAL;
-	}
-	flex_display.width = width;
-	flex_display.height = height;
-	fbtft_init_dbg(dev, "Display resolution: %dx%d\n", width, height);
-	fbtft_init_dbg(dev, "chip = %s\n", chip ? chip : "not set");
-	fbtft_init_dbg(dev, "setaddrwin = %d\n", setaddrwin);
-	fbtft_init_dbg(dev, "regwidth = %d\n", regwidth);
-	fbtft_init_dbg(dev, "buswidth = %d\n", buswidth);
-
-	info = fbtft_framebuffer_alloc(&flex_display, dev, dev->platform_data);
-	if (!info)
-		return -ENOMEM;
-
-	par = info->par;
-	if (sdev)
-		par->spi = sdev;
-	else
-		par->pdev = pdev;
-	if (!par->init_sequence)
-		par->init_sequence = initp;
-	par->fbtftops.init_display = fbtft_init_display;
-
-	/* registerwrite functions */
-	switch (regwidth) {
-	case 8:
-		par->fbtftops.write_register = fbtft_write_reg8_bus8;
-		break;
-	case 16:
-		par->fbtftops.write_register = fbtft_write_reg16_bus8;
-		break;
-	default:
-		dev_err(dev,
-			"argument 'regwidth': %d is not supported.\n",
-			regwidth);
-		return -EINVAL;
-	}
-
-	/* bus functions */
-	if (sdev) {
-		par->fbtftops.write = fbtft_write_spi;
-		switch (buswidth) {
-		case 8:
-			par->fbtftops.write_vmem = fbtft_write_vmem16_bus8;
-			if (!par->startbyte)
-				par->fbtftops.verify_gpios = flexfb_verify_gpios_dc;
-			break;
-		case 9:
-			if (regwidth == 16) {
-				dev_err(dev, "argument 'regwidth': %d is not supported with buswidth=%d and SPI.\n", regwidth, buswidth);
-				return -EINVAL;
-			}
-			par->fbtftops.write_register = fbtft_write_reg8_bus9;
-			par->fbtftops.write_vmem = fbtft_write_vmem16_bus9;
-			sdev->bits_per_word = 9;
-			ret = sdev->master->setup(sdev);
-			if (ret) {
-				dev_warn(dev,
-					"9-bit SPI not available, emulating using 8-bit.\n");
-				sdev->bits_per_word = 8;
-				ret = sdev->master->setup(sdev);
-				if (ret)
-					goto out_release;
-				/* allocate buffer with room for dc bits */
-				par->extra = devm_kzalloc(par->info->device,
-						par->txbuf.len + (par->txbuf.len / 8) + 8,
-						GFP_KERNEL);
-				if (!par->extra) {
-					ret = -ENOMEM;
-					goto out_release;
-				}
-				par->fbtftops.write = fbtft_write_spi_emulate_9;
-			}
-			break;
-		default:
-			dev_err(dev, "argument 'buswidth': %d is not supported with SPI.\n", buswidth);
-			return -EINVAL;
-		}
-	} else {
-		par->fbtftops.verify_gpios = flexfb_verify_gpios_db;
-		switch (buswidth) {
-		case 8:
-			par->fbtftops.write = fbtft_write_gpio8_wr;
-			par->fbtftops.write_vmem = fbtft_write_vmem16_bus8;
-			break;
-		case 16:
-			par->fbtftops.write_register = fbtft_write_reg16_bus16;
-			if (latched)
-				par->fbtftops.write = fbtft_write_gpio16_wr_latched;
-			else
-				par->fbtftops.write = fbtft_write_gpio16_wr;
-			par->fbtftops.write_vmem = fbtft_write_vmem16_bus16;
-			break;
-		default:
-			dev_err(dev, "argument 'buswidth': %d is not supported with parallel.\n", buswidth);
-			return -EINVAL;
-		}
-	}
-
-	/* set_addr_win function */
-	switch (setaddrwin) {
-	case 0:
-		/* use default */
-		break;
-	case 1:
-		par->fbtftops.set_addr_win = flexfb_set_addr_win_1;
-		break;
-	case 2:
-		par->fbtftops.set_addr_win = flexfb_set_addr_win_2;
-		break;
-	case 3:
-		par->fbtftops.set_addr_win = set_addr_win_3;
-		break;
-	default:
-		dev_err(dev, "argument 'setaddrwin': unknown value %d.\n",
-			setaddrwin);
-		return -EINVAL;
-	}
-
-	if (!nobacklight)
-		par->fbtftops.register_backlight = fbtft_register_backlight;
-
-	ret = fbtft_register_framebuffer(info);
-	if (ret < 0)
-		goto out_release;
-
-	return 0;
-
-out_release:
-	fbtft_framebuffer_release(info);
-
-	return ret;
-}
-
-static int flexfb_remove_common(struct device *dev, struct fb_info *info)
-{
-	struct fbtft_par *par;
-
-	if (!info)
-		return -EINVAL;
-	par = info->par;
-	if (par)
-		fbtft_par_dbg(DEBUG_DRIVER_INIT_FUNCTIONS, par, "%s()\n",
-			      __func__);
-	fbtft_unregister_framebuffer(info);
-	fbtft_framebuffer_release(info);
-
-	return 0;
-}
-
-static int flexfb_probe_spi(struct spi_device *spi)
-{
-	return flexfb_probe_common(spi, NULL);
-}
-
-static int flexfb_remove_spi(struct spi_device *spi)
-{
-	struct fb_info *info = spi_get_drvdata(spi);
-
-	return flexfb_remove_common(&spi->dev, info);
-}
-
-static int flexfb_probe_pdev(struct platform_device *pdev)
-{
-	return flexfb_probe_common(NULL, pdev);
-}
-
-static int flexfb_remove_pdev(struct platform_device *pdev)
-{
-	struct fb_info *info = platform_get_drvdata(pdev);
-
-	return flexfb_remove_common(&pdev->dev, info);
-}
-
-static struct spi_driver flexfb_spi_driver = {
-	.driver = {
-		.name   = DRVNAME,
-		.owner  = THIS_MODULE,
-	},
-	.probe  = flexfb_probe_spi,
-	.remove = flexfb_remove_spi,
-};
-
-static const struct platform_device_id flexfb_platform_ids[] = {
-	{ "flexpfb", 0 },
-	{ },
-};
-
-static struct platform_driver flexfb_platform_driver = {
-	.driver = {
-		.name   = DRVNAME,
-	},
-	.id_table = flexfb_platform_ids,
-	.probe  = flexfb_probe_pdev,
-	.remove = flexfb_remove_pdev,
-};
-
-static int __init flexfb_init(void)
-{
-	int ret, ret2;
-
-	ret = spi_register_driver(&flexfb_spi_driver);
-	ret2 = platform_driver_register(&flexfb_platform_driver);
-	if (ret < 0)
-		return ret;
-	return ret2;
-}
-
-static void __exit flexfb_exit(void)
-{
-	spi_unregister_driver(&flexfb_spi_driver);
-	platform_driver_unregister(&flexfb_platform_driver);
-}
-
-/* ------------------------------------------------------------------------- */
-
-module_init(flexfb_init);
-module_exit(flexfb_exit);
-
-MODULE_DESCRIPTION("Generic FB driver for TFT LCD displays");
-MODULE_AUTHOR("Noralf Tronnes");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fbtft/internal.h b/drivers/staging/fbtft/internal.h
index eea0ec5ff4d3..ae2ff4a4a472 100644
--- a/drivers/staging/fbtft/internal.h
+++ b/drivers/staging/fbtft/internal.h
@@ -1,17 +1,5 @@
-/*
- * Copyright (C) 2013 Noralf Tronnes
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (C) 2013 Noralf Tronnes */
 
 #ifndef __LINUX_FBTFT_INTERNAL_H
 #define __LINUX_FBTFT_INTERNAL_H
@@ -19,7 +7,7 @@
 void fbtft_sysfs_init(struct fbtft_par *par);
 void fbtft_sysfs_exit(struct fbtft_par *par);
 void fbtft_expand_debug_value(unsigned long *debug);
-int fbtft_gamma_parse_str(struct fbtft_par *par, unsigned long *curves,
+int fbtft_gamma_parse_str(struct fbtft_par *par, u32 *curves,
 			  const char *str, int size);
 
 #endif /* __LINUX_FBTFT_INTERNAL_H */
diff --git a/drivers/staging/fsl-mc/Kconfig b/drivers/staging/fsl-mc/Kconfig
deleted file mode 100644
index 32df07b15e09..000000000000
--- a/drivers/staging/fsl-mc/Kconfig
+++ /dev/null
@@ -1 +0,0 @@
-source "drivers/staging/fsl-mc/bus/Kconfig"
diff --git a/drivers/staging/fsl-mc/Makefile b/drivers/staging/fsl-mc/Makefile
deleted file mode 100644
index 9c6a00128c65..000000000000
--- a/drivers/staging/fsl-mc/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-# Freescale Management Complex (MC) bus drivers
-obj-$(CONFIG_FSL_MC_BUS)	+= bus/
diff --git a/drivers/staging/fsl-mc/README.txt b/drivers/staging/fsl-mc/README.txt
deleted file mode 100644
index 8214102f104b..000000000000
--- a/drivers/staging/fsl-mc/README.txt
+++ /dev/null
@@ -1,364 +0,0 @@
-Copyright (C) 2015 Freescale Semiconductor Inc.
-
-DPAA2 (Data Path Acceleration Architecture Gen2)
-------------------------------------------------
-
-This document provides an overview of the Freescale DPAA2 architecture
-and how it is integrated into the Linux kernel.
-
-Contents summary
-   -DPAA2 overview
-   -Overview of DPAA2 objects
-   -DPAA2 Linux driver architecture overview
-        -bus driver
-        -dprc driver
-        -allocator
-        -dpio driver
-        -Ethernet
-        -mac
-
-DPAA2 Overview
---------------
-
-DPAA2 is a hardware architecture designed for high-speeed network
-packet processing.  DPAA2 consists of sophisticated mechanisms for
-processing Ethernet packets, queue management, buffer management,
-autonomous L2 switching, virtual Ethernet bridging, and accelerator
-(e.g. crypto) sharing.
-
-A DPAA2 hardware component called the Management Complex (or MC) manages the
-DPAA2 hardware resources.  The MC provides an object-based abstraction for
-software drivers to use the DPAA2 hardware.
-
-The MC uses DPAA2 hardware resources such as queues, buffer pools, and
-network ports to create functional objects/devices such as network
-interfaces, an L2 switch, or accelerator instances.
-
-The MC provides memory-mapped I/O command interfaces (MC portals)
-which DPAA2 software drivers use to operate on DPAA2 objects:
-
-         +--------------------------------------+
-         |                  OS                  |
-         |                        DPAA2 drivers |
-         |                             |        |
-         +-----------------------------|--------+
-                                       |
-                                       | (create,discover,connect
-                                       |  config,use,destroy)
-                                       |
-                         DPAA2         |
-         +------------------------| mc portal |-+
-         |                             |        |
-         |   +- - - - - - - - - - - - -V- - -+  |
-         |   |                               |  |
-         |   |   Management Complex (MC)     |  |
-         |   |                               |  |
-         |   +- - - - - - - - - - - - - - - -+  |
-         |                                      |
-         | Hardware                  Hardware   |
-         | Resources                 Objects    |
-         | ---------                 -------    |
-         | -queues                   -DPRC      |
-         | -buffer pools             -DPMCP     |
-         | -Eth MACs/ports           -DPIO      |
-         | -network interface        -DPNI      |
-         |  profiles                 -DPMAC     |
-         | -queue portals            -DPBP      |
-         | -MC portals                ...       |
-         |  ...                                 |
-         |                                      |
-         +--------------------------------------+
-
-The MC mediates operations such as create, discover,
-connect, configuration, and destroy.  Fast-path operations
-on data, such as packet transmit/receive, are not mediated by
-the MC and are done directly using memory mapped regions in
-DPIO objects.
-
-Overview of DPAA2 Objects
--------------------------
-The section provides a brief overview of some key objects
-in the DPAA2 hardware.  A simple scenario is described illustrating
-the objects involved in creating a network interfaces.
-
--DPRC (Datapath Resource Container)
-
-    A DPRC is an container object that holds all the other
-    types of DPAA2 objects.  In the example diagram below there
-    are 8 objects of 5 types (DPMCP, DPIO, DPBP, DPNI, and DPMAC)
-    in the container.
-
-    +---------------------------------------------------------+
-    | DPRC                                                    |
-    |                                                         |
-    |  +-------+  +-------+  +-------+  +-------+  +-------+  |
-    |  | DPMCP |  | DPIO  |  | DPBP  |  | DPNI  |  | DPMAC |  |
-    |  +-------+  +-------+  +-------+  +---+---+  +---+---+  |
-    |  | DPMCP |  | DPIO  |                                   |
-    |  +-------+  +-------+                                   |
-    |  | DPMCP |                                              |
-    |  +-------+                                              |
-    |                                                         |
-    +---------------------------------------------------------+
-
-    From the point of view of an OS, a DPRC is bus-like.  Like
-    a plug-and-play bus, such as PCI, DPRC commands can be used to
-    enumerate the contents of the DPRC, discover the hardware
-    objects present (including mappable regions and interrupts).
-
-     dprc.1 (bus)
-       |
-       +--+--------+-------+-------+-------+
-          |        |       |       |       |
-        dpmcp.1  dpio.1  dpbp.1  dpni.1  dpmac.1
-        dpmcp.2  dpio.2
-        dpmcp.3
-
-    Hardware objects can be created and destroyed dynamically, providing
-    the ability to hot plug/unplug objects in and out of the DPRC.
-
-    A DPRC has a mappable mmio region (an MC portal) that can be used
-    to send MC commands.  It has an interrupt for status events (like
-    hotplug).
-
-    All objects in a container share the same hardware "isolation context".
-    This means that with respect to an IOMMU the isolation granularity
-    is at the DPRC (container) level, not at the individual object
-    level.
-
-    DPRCs can be defined statically and populated with objects
-    via a config file passed to the MC when firmware starts
-    it.  There is also a Linux user space tool called "restool"
-    that can be used to create/destroy containers and objects
-    dynamically.
-
--DPAA2 Objects for an Ethernet Network Interface
-
-    A typical Ethernet NIC is monolithic-- the NIC device contains TX/RX
-    queuing mechanisms, configuration mechanisms, buffer management,
-    physical ports, and interrupts.  DPAA2 uses a more granular approach
-    utilizing multiple hardware objects.  Each object has specialized
-    functions, and are used together by software to provide Ethernet network
-    interface functionality.  This approach provides efficient use of finite
-    hardware resources, flexibility, and performance advantages.
-
-    The diagram below shows the objects needed for a simple
-    network interface configuration on a system with 2 CPUs.
-
-              +---+---+ +---+---+
-                 CPU0     CPU1
-              +---+---+ +---+---+
-                  |         |
-              +---+---+ +---+---+
-                 DPIO     DPIO
-              +---+---+ +---+---+
-                    \     /
-                     \   /
-                      \ /
-                   +---+---+
-                      DPNI  --- DPBP,DPMCP
-                   +---+---+
-                       |
-                       |
-                   +---+---+
-                     DPMAC
-                   +---+---+
-                       |
-                    port/PHY
-
-    Below the objects are described.  For each object a brief description
-    is provided along with a summary of the kinds of operations the object
-    supports and a summary of key resources of the object (mmio regions
-    and irqs).
-
-       -DPMAC (Datapath Ethernet MAC): represents an Ethernet MAC, a
-        hardware device that connects to an Ethernet PHY and allows
-        physical transmission and reception of Ethernet frames.
-           -mmio regions: none
-           -irqs: dpni link change
-           -commands: set link up/down, link config, get stats,
-             irq config, enable, reset
-
-       -DPNI (Datapath Network Interface): contains TX/RX queues,
-        network interface configuration, and rx buffer pool configuration
-        mechanisms.
-           -mmio regions: none
-           -irqs: link state
-           -commands: port config, offload config, queue config,
-            parse/classify config, irq config, enable, reset
-
-       -DPIO (Datapath I/O): provides interfaces to enqueue and dequeue
-        packets and do hardware buffer pool management operations.  For
-        optimum performance there is typically DPIO per CPU.  This allows
-        each CPU to perform simultaneous enqueue/dequeue operations.
-           -mmio regions: queue operations, buffer mgmt
-           -irqs: data availability, congestion notification, buffer
-                  pool depletion
-           -commands: irq config, enable, reset
-
-       -DPBP (Datapath Buffer Pool): represents a hardware buffer
-        pool.
-           -mmio regions: none
-           -irqs: none
-           -commands: enable, reset
-
-       -DPMCP (Datapath MC Portal): provides an MC command portal.
-        Used by drivers to send commands to the MC to manage
-        objects.
-           -mmio regions: MC command portal
-           -irqs: command completion
-           -commands: irq config, enable, reset
-
-    Object Connections
-    ------------------
-    Some objects have explicit relationships that must
-    be configured:
-
-       -DPNI <--> DPMAC
-       -DPNI <--> DPNI
-       -DPNI <--> L2-switch-port
-          A DPNI must be connected to something such as a DPMAC,
-          another DPNI, or L2 switch port.  The DPNI connection
-          is made via a DPRC command.
-
-              +-------+  +-------+
-              | DPNI  |  | DPMAC |
-              +---+---+  +---+---+
-                  |          |
-                  +==========+
-
-       -DPNI <--> DPBP
-          A network interface requires a 'buffer pool' (DPBP
-          object) which provides a list of pointers to memory
-          where received Ethernet data is to be copied.  The
-          Ethernet driver configures the DPBPs associated with
-          the network interface.
-
-    Interrupts
-    ----------
-    All interrupts generated by DPAA2 objects are message
-    interrupts.  At the hardware level message interrupts
-    generated by devices will normally have 3 components--
-    1) a non-spoofable 'device-id' expressed on the hardware
-    bus, 2) an address, 3) a data value.
-
-    In the case of DPAA2 devices/objects, all objects in the
-    same container/DPRC share the same 'device-id'.
-    For ARM-based SoC this is the same as the stream ID.
-
-
-DPAA2 Linux Driver Overview
----------------------------
-
-This section provides an overview of the Linux kernel drivers for
-DPAA2-- 1) the bus driver and associated "DPAA2 infrastructure"
-drivers and 2) functional object drivers (such as Ethernet).
-
-As described previously, a DPRC is a container that holds the other
-types of DPAA2 objects.  It is functionally similar to a plug-and-play
-bus controller.
-
-Each object in the DPRC is a Linux "device" and is bound to a driver.
-The diagram below shows the Linux drivers involved in a networking
-scenario and the objects bound to each driver.  A brief description
-of each driver follows.
-
-                                             +------------+
-                                             | OS Network |
-                                             |   Stack    |
-                 +------------+              +------------+
-                 | Allocator  |. . . . . . . |  Ethernet  |
-                 |(dpmcp,dpbp)|              |   (dpni)   |
-                 +-.----------+              +---+---+----+
-                  .          .                   ^   |
-                 .            .     <data avail, |   |<enqueue,
-                .              .     tx confirm> |   | dequeue>
-    +-------------+             .                |   |
-    | DPRC driver |              .           +---+---V----+     +---------+
-    |   (dprc)    |               . . . . . .| DPIO driver|     |   MAC   |
-    +----------+--+                          |  (dpio)    |     | (dpmac) |
-               |                             +------+-----+     +-----+---+
-               |<dev add/remove>                    |                 |
-               |                                    |                 |
-          +----+--------------+                     |              +--+---+
-          |   mc-bus driver   |                     |              | PHY  |
-          |                   |                     |              |driver|
-          | /fsl-mc@80c000000 |                     |              +--+---+
-          +-------------------+                     |                 |
-                                                    |                 |
- ================================ HARDWARE =========|=================|======
-                                                  DPIO                |
-                                                    |                 |
-                                                  DPNI---DPBP         |
-                                                    |                 |
-                                                  DPMAC               |
-                                                    |                 |
-                                                   PHY ---------------+
- ===================================================|========================
-
-A brief description of each driver is provided below.
-
-    mc-bus driver
-    -------------
-    The mc-bus driver is a platform driver and is probed from an
-    "/fsl-mc@xxxx" node in the device tree passed in by boot firmware.
-    It is responsible for bootstrapping the DPAA2 kernel infrastructure.
-    Key functions include:
-       -registering a new bus type named "fsl-mc" with the kernel,
-        and implementing bus call-backs (e.g. match/uevent/dev_groups)
-       -implemeting APIs for DPAA2 driver registration and for device
-        add/remove
-       -creates an MSI irq domain
-       -do a device add of the 'root' DPRC device, which is needed
-        to bootstrap things
-
-    DPRC driver
-    -----------
-    The dprc-driver is bound DPRC objects and does runtime management
-    of a bus instance.  It performs the initial bus scan of the DPRC
-    and handles interrupts for container events such as hot plug.
-
-    Allocator
-    ----------
-    Certain objects such as DPMCP and DPBP are generic and fungible,
-    and are intended to be used by other drivers.  For example,
-    the DPAA2 Ethernet driver needs:
-       -DPMCPs to send MC commands, to configure network interfaces
-       -DPBPs for network buffer pools
-
-    The allocator driver registers for these allocatable object types
-    and those objects are bound to the allocator when the bus is probed.
-    The allocator maintains a pool of objects that are available for
-    allocation by other DPAA2 drivers.
-
-    DPIO driver
-    -----------
-    The DPIO driver is bound to DPIO objects and provides services that allow
-    other drivers such as the Ethernet driver to receive and transmit data.
-    Key services include:
-        -data availability notifications
-        -hardware queuing operations (enqueue and dequeue of data)
-        -hardware buffer pool management
-
-    There is typically one DPIO object per physical CPU for optimum
-    performance, allowing each CPU to simultaneously enqueue
-    and dequeue data.
-
-    The DPIO driver operates on behalf of all DPAA2 drivers
-    active in the kernel--  Ethernet, crypto, compression,
-    etc.
-
-    Ethernet
-    --------
-    The Ethernet driver is bound to a DPNI and implements the kernel
-    interfaces needed to connect the DPAA2 network interface to
-    the network stack.
-
-    Each DPNI corresponds to a Linux network interface.
-
-    MAC driver
-    ----------
-    An Ethernet PHY is an off-chip, board specific component and is managed
-    by the appropriate PHY driver via an mdio bus.  The MAC driver
-    plays a role of being a proxy between the PHY driver and the
-    MC.  It does this proxy via the MC commands to a DPMAC object.
diff --git a/drivers/staging/fsl-mc/TODO b/drivers/staging/fsl-mc/TODO
deleted file mode 100644
index 389436891b93..000000000000
--- a/drivers/staging/fsl-mc/TODO
+++ /dev/null
@@ -1,31 +0,0 @@
-* Decide if multiple root fsl-mc buses will be supported per Linux instance,
-  and if so add support for this.
-
-* Add at least one device driver for a DPAA2 object (child device of the
-  fsl-mc bus).  Most likely candidate for this is adding DPAA2 Ethernet
-  driver support, which depends on drivers for several objects: DPNI,
-  DPIO, DPMAC.  Other pre-requisites include:
-
-     * interrupt support. for meaningful driver support we need
-       interrupts, and thus need message interrupt support by the bus
-       driver.
-          -Note: this has dependencies on generic MSI support work
-           in process upstream, see [1] and [2].
-
-     * Management Complex (MC) command serialization. locking mechanisms
-       are needed by drivers to serialize commands sent to the MC, including
-       from atomic context.
-
-     * MC firmware uprev.  The MC firmware upon which the fsl-mc
-       bus driver and DPAA2 object drivers are based is continuing
-       to evolve, so minor updates are needed to keep in sync with binary
-       interface changes to the MC.
-
-* Cleanup
-
-Please send any patches to Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
-german.rivera@freescale.com, devel@driverdev.osuosl.org,
-linux-kernel@vger.kernel.org
-
-[1] https://lkml.org/lkml/2015/7/9/93
-[2] https://lkml.org/lkml/2015/7/7/712
diff --git a/drivers/staging/fsl-mc/bus/Kconfig b/drivers/staging/fsl-mc/bus/Kconfig
deleted file mode 100644
index 0d779d9ccbd8..000000000000
--- a/drivers/staging/fsl-mc/bus/Kconfig
+++ /dev/null
@@ -1,24 +0,0 @@
-#
-# Freescale Management Complex (MC) bus drivers
-#
-# Copyright (C) 2014 Freescale Semiconductor, Inc.
-#
-# This file is released under the GPLv2
-#
-
-config FSL_MC_BUS
-	tristate "Freescale Management Complex (MC) bus driver"
-	depends on OF && ARM64
-	help
-	  Driver to enable the bus infrastructure for the Freescale
-          QorIQ Management Complex (fsl-mc). The fsl-mc is a hardware
-	  module of the QorIQ LS2 SoCs, that does resource management
-	  for hardware building-blocks in the SoC that can be used
-	  to dynamically create networking hardware objects such as
-	  network interfaces (NICs), crypto accelerator instances,
-	  or L2 switches.
-
-	  Only enable this option when building the kernel for
-	  Freescale QorQIQ LS2xxxx SoCs.
-
-
diff --git a/drivers/staging/fsl-mc/bus/Makefile b/drivers/staging/fsl-mc/bus/Makefile
deleted file mode 100644
index 25433a998478..000000000000
--- a/drivers/staging/fsl-mc/bus/Makefile
+++ /dev/null
@@ -1,17 +0,0 @@
-#
-# Freescale Management Complex (MC) bus drivers
-#
-# Copyright (C) 2014 Freescale Semiconductor, Inc.
-#
-# This file is released under the GPLv2
-#
-obj-$(CONFIG_FSL_MC_BUS) += mc-bus-driver.o
-
-mc-bus-driver-objs := mc-bus.o \
-		      mc-sys.o \
-		      dprc.o \
-		      dpmng.o \
-		      dprc-driver.o \
-		      mc-allocator.o \
-		      dpmcp.o \
-		      dpbp.o
diff --git a/drivers/staging/fsl-mc/bus/dpbp.c b/drivers/staging/fsl-mc/bus/dpbp.c
deleted file mode 100644
index d99ab6d0bbb1..000000000000
--- a/drivers/staging/fsl-mc/bus/dpbp.c
+++ /dev/null
@@ -1,358 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in the
-* documentation and/or other materials provided with the distribution.
-* * Neither the name of the above-listed copyright holders nor the
-* names of any contributors may be used to endorse or promote products
-* derived from this software without specific prior written permission.
-*
-*
-* ALTERNATIVELY, this software may be distributed under the terms of the
-* GNU General Public License ("GPL") as published by the Free Software
-* Foundation, either version 2 of that License or (at your option) any
-* later version.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
-* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-*/
-#include "../include/mc-sys.h"
-#include "../include/mc-cmd.h"
-#include "../include/dpbp.h"
-#include "../include/dpbp-cmd.h"
-
-int dpbp_open(struct fsl_mc_io *mc_io, int dpbp_id, uint16_t *token)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_OPEN,
-					  MC_CMD_PRI_LOW, 0);
-	cmd.params[0] |= mc_enc(0, 32, dpbp_id);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
-
-	return err;
-}
-EXPORT_SYMBOL(dpbp_open);
-
-int dpbp_close(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLOSE, MC_CMD_PRI_HIGH,
-					  token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-EXPORT_SYMBOL(dpbp_close);
-
-int dpbp_create(struct fsl_mc_io *mc_io,
-		const struct dpbp_cfg *cfg,
-		uint16_t *token)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	(void)(cfg); /* unused */
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE,
-					  MC_CMD_PRI_LOW, 0);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
-
-	return 0;
-}
-
-int dpbp_destroy(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpbp_enable(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_ENABLE, MC_CMD_PRI_LOW,
-					  token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-EXPORT_SYMBOL(dpbp_enable);
-
-int dpbp_disable(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_DISABLE,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-EXPORT_SYMBOL(dpbp_disable);
-
-int dpbp_is_enabled(struct fsl_mc_io *mc_io, uint16_t token, int *en)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_IS_ENABLED, MC_CMD_PRI_LOW,
-					  token);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*en = (int)mc_dec(cmd.params[0], 0, 1);
-
-	return 0;
-}
-
-int dpbp_reset(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_RESET,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpbp_set_irq(struct fsl_mc_io *mc_io,
-		 uint16_t token,
-		 uint8_t irq_index,
-		 uint64_t irq_paddr,
-		 uint32_t irq_val,
-		 int user_irq_id)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 8, irq_index);
-	cmd.params[0] |= mc_enc(32, 32, irq_val);
-	cmd.params[1] |= mc_enc(0, 64, irq_paddr);
-	cmd.params[2] |= mc_enc(0, 32, user_irq_id);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpbp_get_irq(struct fsl_mc_io *mc_io,
-		 uint16_t token,
-		 uint8_t irq_index,
-		 int *type,
-		 uint64_t *irq_paddr,
-		 uint32_t *irq_val,
-		 int *user_irq_id)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*irq_val = (uint32_t)mc_dec(cmd.params[0], 0, 32);
-	*irq_paddr = (uint64_t)mc_dec(cmd.params[1], 0, 64);
-	*user_irq_id = (int)mc_dec(cmd.params[2], 0, 32);
-	*type = (int)mc_dec(cmd.params[2], 32, 32);
-	return 0;
-}
-
-int dpbp_set_irq_enable(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			uint8_t irq_index,
-			uint8_t en)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_ENABLE,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 8, en);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpbp_get_irq_enable(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			uint8_t irq_index,
-			uint8_t *en)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_ENABLE,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*en = (uint8_t)mc_dec(cmd.params[0], 0, 8);
-	return 0;
-}
-
-int dpbp_set_irq_mask(struct fsl_mc_io *mc_io,
-		      uint16_t token,
-		      uint8_t irq_index,
-		      uint32_t mask)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_MASK,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, mask);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpbp_get_irq_mask(struct fsl_mc_io *mc_io,
-		      uint16_t token,
-		      uint8_t irq_index,
-		      uint32_t *mask)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_MASK,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*mask = (uint32_t)mc_dec(cmd.params[0], 0, 32);
-	return 0;
-}
-
-int dpbp_get_irq_status(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			uint8_t irq_index,
-			uint32_t *status)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_STATUS,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*status = (uint32_t)mc_dec(cmd.params[0], 0, 32);
-	return 0;
-}
-
-int dpbp_clear_irq_status(struct fsl_mc_io *mc_io,
-			  uint16_t token,
-			  uint8_t irq_index,
-			  uint32_t status)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLEAR_IRQ_STATUS,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, status);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpbp_get_attributes(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			struct dpbp_attr *attr)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_ATTR,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	attr->bpid = (uint16_t)mc_dec(cmd.params[0], 16, 16);
-	attr->id = (int)mc_dec(cmd.params[0], 32, 32);
-	attr->version.major = (uint16_t)mc_dec(cmd.params[1], 0, 16);
-	attr->version.minor = (uint16_t)mc_dec(cmd.params[1], 16, 16);
-	return 0;
-}
-EXPORT_SYMBOL(dpbp_get_attributes);
diff --git a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h
deleted file mode 100644
index 57f326b60b76..000000000000
--- a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef _FSL_DPMCP_CMD_H
-#define _FSL_DPMCP_CMD_H
-
-/* DPMCP Version */
-#define DPMCP_VER_MAJOR				2
-#define DPMCP_VER_MINOR				0
-
-/* Command IDs */
-#define DPMCP_CMDID_CLOSE				0x800
-#define DPMCP_CMDID_OPEN				0x80b
-#define DPMCP_CMDID_CREATE				0x90b
-#define DPMCP_CMDID_DESTROY				0x900
-
-#define DPMCP_CMDID_GET_ATTR				0x004
-#define DPMCP_CMDID_RESET				0x005
-
-#define DPMCP_CMDID_SET_IRQ				0x010
-#define DPMCP_CMDID_GET_IRQ				0x011
-#define DPMCP_CMDID_SET_IRQ_ENABLE			0x012
-#define DPMCP_CMDID_GET_IRQ_ENABLE			0x013
-#define DPMCP_CMDID_SET_IRQ_MASK			0x014
-#define DPMCP_CMDID_GET_IRQ_MASK			0x015
-#define DPMCP_CMDID_GET_IRQ_STATUS			0x016
-#define DPMCP_CMDID_CLEAR_IRQ_STATUS			0x017
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_CREATE(cmd, cfg) \
-	MC_CMD_OP(cmd, 0, 0,  32, int,      cfg->portal_id)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_SET_IRQ(cmd, irq_index, irq_addr, irq_val, user_irq_id) \
-do { \
-	MC_CMD_OP(cmd, 0, 0,  8,  uint8_t,  irq_index);\
-	MC_CMD_OP(cmd, 0, 32, 32, uint32_t, irq_val);\
-	MC_CMD_OP(cmd, 1, 0,  64, uint64_t, irq_addr); \
-	MC_CMD_OP(cmd, 2, 0,  32, int,	    user_irq_id); \
-} while (0)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_GET_IRQ(cmd, irq_index) \
-	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_RSP_GET_IRQ(cmd, type, irq_addr, irq_val, user_irq_id) \
-do { \
-	MC_RSP_OP(cmd, 0, 0,  32, uint32_t, irq_val); \
-	MC_RSP_OP(cmd, 1, 0,  64, uint64_t, irq_addr); \
-	MC_RSP_OP(cmd, 2, 0,  32, int,	    user_irq_id); \
-	MC_RSP_OP(cmd, 2, 32, 32, int,	    type); \
-} while (0)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_SET_IRQ_ENABLE(cmd, irq_index, en) \
-do { \
-	MC_CMD_OP(cmd, 0, 0,  8,  uint8_t,  en); \
-	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index);\
-} while (0)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_GET_IRQ_ENABLE(cmd, irq_index) \
-	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_RSP_GET_IRQ_ENABLE(cmd, en) \
-	MC_RSP_OP(cmd, 0, 0,  8,  uint8_t,  en)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_SET_IRQ_MASK(cmd, irq_index, mask) \
-do { \
-	MC_CMD_OP(cmd, 0, 0,  32, uint32_t, mask);\
-	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index);\
-} while (0)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_GET_IRQ_MASK(cmd, irq_index) \
-	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_RSP_GET_IRQ_MASK(cmd, mask) \
-	MC_RSP_OP(cmd, 0, 0,  32, uint32_t, mask)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_GET_IRQ_STATUS(cmd, irq_index) \
-	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_RSP_GET_IRQ_STATUS(cmd, status) \
-	MC_RSP_OP(cmd, 0, 0,  32, uint32_t, status)
-
-/*                cmd, param, offset, width, type, arg_name */
-#define DPMCP_CMD_CLEAR_IRQ_STATUS(cmd, irq_index, status) \
-do { \
-	MC_CMD_OP(cmd, 0, 0,  32, uint32_t, status); \
-	MC_CMD_OP(cmd, 0, 32, 8,  uint8_t,  irq_index);\
-} while (0)
-
-/*                cmd, param, offset, width, type,	arg_name */
-#define DPMCP_RSP_GET_ATTRIBUTES(cmd, attr) \
-do { \
-	MC_RSP_OP(cmd, 0, 32, 32, int,	    attr->id);\
-	MC_RSP_OP(cmd, 1, 0,  16, uint16_t, attr->version.major);\
-	MC_RSP_OP(cmd, 1, 16, 16, uint16_t, attr->version.minor);\
-} while (0)
-
-#endif /* _FSL_DPMCP_CMD_H */
diff --git a/drivers/staging/fsl-mc/bus/dpmcp.c b/drivers/staging/fsl-mc/bus/dpmcp.c
deleted file mode 100644
index 6b9da5b7fd00..000000000000
--- a/drivers/staging/fsl-mc/bus/dpmcp.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#include "../include/mc-sys.h"
-#include "../include/mc-cmd.h"
-#include "dpmcp.h"
-#include "dpmcp-cmd.h"
-
-int dpmcp_open(struct fsl_mc_io *mc_io, int dpmcp_id, uint16_t *token)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_OPEN,
-					  MC_CMD_PRI_LOW, 0);
-	cmd.params[0] |= mc_enc(0, 32, dpmcp_id);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
-
-	return err;
-}
-
-int dpmcp_close(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLOSE, MC_CMD_PRI_HIGH,
-					  token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpmcp_create(struct fsl_mc_io *mc_io,
-		 const struct dpmcp_cfg *cfg,
-		uint16_t *token)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CREATE,
-					  MC_CMD_PRI_LOW, 0);
-	cmd.params[0] |= mc_enc(0, 32, cfg->portal_id);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
-
-	return 0;
-}
-
-int dpmcp_destroy(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_DESTROY,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpmcp_reset(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_RESET,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpmcp_set_irq(struct fsl_mc_io *mc_io,
-		  uint16_t token,
-		 uint8_t irq_index,
-		 uint64_t irq_addr,
-		 uint32_t irq_val,
-		 int user_irq_id)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 8, irq_index);
-	cmd.params[0] |= mc_enc(32, 32, irq_val);
-	cmd.params[1] |= mc_enc(0, 64, irq_addr);
-	cmd.params[2] |= mc_enc(0, 32, user_irq_id);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpmcp_get_irq(struct fsl_mc_io *mc_io,
-		  uint16_t token,
-		 uint8_t irq_index,
-		 int *type,
-		 uint64_t *irq_addr,
-		 uint32_t *irq_val,
-		 int *user_irq_id)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*irq_val = (uint32_t)mc_dec(cmd.params[0], 0, 32);
-	*irq_addr = (uint64_t)mc_dec(cmd.params[1], 0, 64);
-	*user_irq_id = (int)mc_dec(cmd.params[2], 0, 32);
-	*type = (int)mc_dec(cmd.params[2], 32, 32);
-	return 0;
-}
-
-int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io,
-			 uint16_t token,
-			uint8_t irq_index,
-			uint8_t en)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_ENABLE,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 8, en);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io,
-			 uint16_t token,
-			uint8_t irq_index,
-			uint8_t *en)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_ENABLE,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*en = (uint8_t)mc_dec(cmd.params[0], 0, 8);
-	return 0;
-}
-
-int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io,
-		       uint16_t token,
-		      uint8_t irq_index,
-		      uint32_t mask)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_MASK,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, mask);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io,
-		       uint16_t token,
-		      uint8_t irq_index,
-		      uint32_t *mask)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_MASK,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*mask = (uint32_t)mc_dec(cmd.params[0], 0, 32);
-	return 0;
-}
-
-int dpmcp_get_irq_status(struct fsl_mc_io *mc_io,
-			 uint16_t token,
-			uint8_t irq_index,
-			uint32_t *status)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_STATUS,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*status = (uint32_t)mc_dec(cmd.params[0], 0, 32);
-	return 0;
-}
-
-int dpmcp_clear_irq_status(struct fsl_mc_io *mc_io,
-			   uint16_t token,
-			  uint8_t irq_index,
-			  uint32_t status)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLEAR_IRQ_STATUS,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, status);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dpmcp_get_attributes(struct fsl_mc_io *mc_io,
-			 uint16_t token,
-			struct dpmcp_attr *attr)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_ATTR,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	attr->id = (int)mc_dec(cmd.params[0], 32, 32);
-	attr->version.major = (uint16_t)mc_dec(cmd.params[1], 0, 16);
-	attr->version.minor = (uint16_t)mc_dec(cmd.params[1], 16, 16);
-	return 0;
-}
diff --git a/drivers/staging/fsl-mc/bus/dpmcp.h b/drivers/staging/fsl-mc/bus/dpmcp.h
deleted file mode 100644
index 5e7c21952ce5..000000000000
--- a/drivers/staging/fsl-mc/bus/dpmcp.h
+++ /dev/null
@@ -1,311 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef __FSL_DPMCP_H
-#define __FSL_DPMCP_H
-
-/* Data Path Management Command Portal API
- * Contains initialization APIs and runtime control APIs for DPMCP
- */
-
-struct fsl_mc_io;
-
-/**
- * dpmcp_open() - Open a control session for the specified object.
- * @mc_io:	Pointer to MC portal's I/O object
- * @dpmcp_id:	DPMCP unique ID
- * @token:	Returned token; use in subsequent API calls
- *
- * This function can be used to open a control session for an
- * already created object; an object may have been declared in
- * the DPL or by calling the dpmcp_create function.
- * This function returns a unique authentication token,
- * associated with the specific object ID and the specific MC
- * portal; this token must be used in all subsequent commands for
- * this specific object
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_open(struct fsl_mc_io *mc_io, int dpmcp_id, uint16_t *token);
-
-/* Get portal ID from pool */
-#define DPMCP_GET_PORTAL_ID_FROM_POOL (-1)
-
-/**
- * dpmcp_close() - Close the control session of the object
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- *
- * After this function is called, no further operations are
- * allowed on the object without opening a new control session.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_close(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * struct dpmcp_cfg() - Structure representing DPMCP configuration
- * @portal_id:	Portal ID; 'DPMCP_GET_PORTAL_ID_FROM_POOL' to get the portal ID
- *		from pool
- */
-struct dpmcp_cfg {
-	int portal_id;
-};
-
-/**
- * dpmcp_create() - Create the DPMCP object.
- * @mc_io:	Pointer to MC portal's I/O object
- * @cfg:	Configuration structure
- * @token:	Returned token; use in subsequent API calls
- *
- * Create the DPMCP object, allocate required resources and
- * perform required initialization.
- *
- * The object can be created either by declaring it in the
- * DPL file, or by calling this function.
- * This function returns a unique authentication token,
- * associated with the specific object ID and the specific MC
- * portal; this token must be used in all subsequent calls to
- * this specific object. For objects that are created using the
- * DPL file, call dpmcp_open function to get an authentication
- * token first.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_create(struct fsl_mc_io	*mc_io,
-		 const struct dpmcp_cfg	*cfg,
-		uint16_t		*token);
-
-/**
- * dpmcp_destroy() - Destroy the DPMCP object and release all its resources.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- *
- * Return:	'0' on Success; error code otherwise.
- */
-int dpmcp_destroy(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * dpmcp_reset() - Reset the DPMCP, returns the object to initial state.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_reset(struct fsl_mc_io *mc_io, uint16_t token);
-
-/* IRQ */
-/*!
- * @name dpmcp IRQ Index and Events
- */
-#define DPMCP_IRQ_INDEX                             0
-/*!< Irq index */
-#define DPMCP_IRQ_EVENT_CMD_DONE                    0x00000001
-/*!< irq event - Indicates that the link state changed */
-/* @} */
-
-/**
- * dpmcp_set_irq() - Set IRQ information for the DPMCP to trigger an interrupt.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	Identifies the interrupt index to configure
- * @irq_addr:	Address that must be written to
- *				signal a message-based interrupt
- * @irq_val:	Value to write into irq_addr address
- * @user_irq_id: A user defined number associated with this IRQ
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_set_irq(struct fsl_mc_io	*mc_io,
-		  uint16_t		token,
-		 uint8_t		irq_index,
-		 uint64_t		irq_addr,
-		 uint32_t		irq_val,
-		 int			user_irq_id);
-
-/**
- * dpmcp_get_irq() - Get IRQ information from the DPMCP.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	The interrupt index to configure
- * @type:	Interrupt type: 0 represents message interrupt
- *				type (both irq_addr and irq_val are valid)
- * @irq_addr:	Returned address that must be written to
- *				signal the message-based interrupt
- * @irq_val:	Value to write into irq_addr address
- * @user_irq_id: A user defined number associated with this IRQ
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_get_irq(struct fsl_mc_io	*mc_io,
-		  uint16_t		token,
-		 uint8_t		irq_index,
-		 int			*type,
-		 uint64_t		*irq_addr,
-		 uint32_t		*irq_val,
-		 int			*user_irq_id);
-
-/**
- * dpmcp_set_irq_enable() - Set overall interrupt state.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	The interrupt index to configure
- * @en:	Interrupt state - enable = 1, disable = 0
- *
- * Allows GPP software to control when interrupts are generated.
- * Each interrupt can have up to 32 causes.  The enable/disable control's the
- * overall interrupt state. if the interrupt is disabled no causes will cause
- * an interrupt.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_set_irq_enable(struct fsl_mc_io	*mc_io,
-			 uint16_t		token,
-			uint8_t			irq_index,
-			uint8_t			en);
-
-/**
- * dpmcp_get_irq_enable() - Get overall interrupt state
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	The interrupt index to configure
- * @en:		Returned interrupt state - enable = 1, disable = 0
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_get_irq_enable(struct fsl_mc_io	*mc_io,
-			 uint16_t		token,
-			uint8_t			irq_index,
-			uint8_t			*en);
-
-/**
- * dpmcp_set_irq_mask() - Set interrupt mask.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	The interrupt index to configure
- * @mask:	Event mask to trigger interrupt;
- *			each bit:
- *				0 = ignore event
- *				1 = consider event for asserting IRQ
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_set_irq_mask(struct fsl_mc_io	*mc_io,
-		       uint16_t		token,
-		      uint8_t		irq_index,
-		      uint32_t		mask);
-
-/**
- * dpmcp_get_irq_mask() - Get interrupt mask.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	The interrupt index to configure
- * @mask:	Returned event mask to trigger interrupt
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_get_irq_mask(struct fsl_mc_io	*mc_io,
-		       uint16_t		token,
-		      uint8_t		irq_index,
-		      uint32_t		*mask);
-
-/**
- * dpmcp_get_irq_status() - Get the current status of any pending interrupts.
- *
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	The interrupt index to configure
- * @status:	Returned interrupts status - one bit per cause:
- *			0 = no interrupt pending
- *			1 = interrupt pending
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_get_irq_status(struct fsl_mc_io	*mc_io,
-			 uint16_t		token,
-			uint8_t			irq_index,
-			uint32_t		*status);
-
-/**
- * dpmcp_clear_irq_status() - Clear a pending interrupt's status
- *
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @irq_index:	The interrupt index to configure
- * @status:	Bits to clear (W1C) - one bit per cause:
- *					0 = don't change
- *					1 = clear status bit
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_clear_irq_status(struct fsl_mc_io	*mc_io,
-			   uint16_t		token,
-			  uint8_t		irq_index,
-			  uint32_t		status);
-
-/**
- * struct dpmcp_attr - Structure representing DPMCP attributes
- * @id:		DPMCP object ID
- * @version:	DPMCP version
- */
-struct dpmcp_attr {
-	int id;
-	/**
-	 * struct version - Structure representing DPMCP version
-	 * @major:	DPMCP major version
-	 * @minor:	DPMCP minor version
-	 */
-	struct {
-		uint16_t major;
-		uint16_t minor;
-	} version;
-};
-
-/**
- * dpmcp_get_attributes - Retrieve DPMCP attributes.
- *
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPMCP object
- * @attr:	Returned object's attributes
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmcp_get_attributes(struct fsl_mc_io	*mc_io,
-			 uint16_t		token,
-			struct dpmcp_attr	*attr);
-
-#endif /* __FSL_DPMCP_H */
diff --git a/drivers/staging/fsl-mc/bus/dpmng-cmd.h b/drivers/staging/fsl-mc/bus/dpmng-cmd.h
deleted file mode 100644
index ba8cfa9635dd..000000000000
--- a/drivers/staging/fsl-mc/bus/dpmng-cmd.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of the above-listed copyright holders nor the
- *       names of any contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*************************************************************************//*
- dpmng-cmd.h
-
- defines portal commands
-
- *//**************************************************************************/
-
-#ifndef __FSL_DPMNG_CMD_H
-#define __FSL_DPMNG_CMD_H
-
-/* Command IDs */
-#define DPMNG_CMDID_GET_CONT_ID			0x830
-#define DPMNG_CMDID_GET_VERSION			0x831
-
-#endif /* __FSL_DPMNG_CMD_H */
diff --git a/drivers/staging/fsl-mc/bus/dpmng.c b/drivers/staging/fsl-mc/bus/dpmng.c
deleted file mode 100644
index 58328e8118e9..000000000000
--- a/drivers/staging/fsl-mc/bus/dpmng.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in the
-* documentation and/or other materials provided with the distribution.
-* * Neither the name of the above-listed copyright holders nor the
-* names of any contributors may be used to endorse or promote products
-* derived from this software without specific prior written permission.
-*
-*
-* ALTERNATIVELY, this software may be distributed under the terms of the
-* GNU General Public License ("GPL") as published by the Free Software
-* Foundation, either version 2 of that License or (at your option) any
-* later version.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
-* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-*/
-#include "../include/mc-sys.h"
-#include "../include/mc-cmd.h"
-#include "../include/dpmng.h"
-#include "dpmng-cmd.h"
-
-int mc_get_version(struct fsl_mc_io *mc_io, struct mc_version *mc_ver_info)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_VERSION,
-					  MC_CMD_PRI_LOW, 0);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	mc_ver_info->revision = mc_dec(cmd.params[0], 0, 32);
-	mc_ver_info->major = mc_dec(cmd.params[0], 32, 32);
-	mc_ver_info->minor = mc_dec(cmd.params[1], 0, 32);
-
-	return 0;
-}
-
-int dpmng_get_container_id(struct fsl_mc_io *mc_io, int *container_id)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_CONT_ID,
-					  MC_CMD_PRI_LOW, 0);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*container_id = mc_dec(cmd.params[0], 0, 32);
-
-	return 0;
-}
-
diff --git a/drivers/staging/fsl-mc/bus/dprc-cmd.h b/drivers/staging/fsl-mc/bus/dprc-cmd.h
deleted file mode 100644
index 09202489c2b2..000000000000
--- a/drivers/staging/fsl-mc/bus/dprc-cmd.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of the above-listed copyright holders nor the
- *       names of any contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*************************************************************************//*
- dprc-cmd.h
-
- defines dprc portal commands
-
- *//**************************************************************************/
-
-#ifndef _FSL_DPRC_CMD_H
-#define _FSL_DPRC_CMD_H
-
-/* DPRC Version */
-#define DPRC_VER_MAJOR				3
-#define DPRC_VER_MINOR				0
-
-/* Command IDs */
-#define DPRC_CMDID_CLOSE			0x800
-#define DPRC_CMDID_OPEN				0x805
-#define DPRC_CMDID_CREATE			0x905
-
-#define DPRC_CMDID_GET_ATTR			0x004
-#define DPRC_CMDID_RESET_CONT			0x005
-
-#define DPRC_CMDID_SET_IRQ			0x010
-#define DPRC_CMDID_GET_IRQ			0x011
-#define DPRC_CMDID_SET_IRQ_ENABLE		0x012
-#define DPRC_CMDID_GET_IRQ_ENABLE		0x013
-#define DPRC_CMDID_SET_IRQ_MASK			0x014
-#define DPRC_CMDID_GET_IRQ_MASK			0x015
-#define DPRC_CMDID_GET_IRQ_STATUS		0x016
-#define DPRC_CMDID_CLEAR_IRQ_STATUS		0x017
-
-#define DPRC_CMDID_CREATE_CONT			0x151
-#define DPRC_CMDID_DESTROY_CONT			0x152
-#define DPRC_CMDID_SET_RES_QUOTA		0x155
-#define DPRC_CMDID_GET_RES_QUOTA		0x156
-#define DPRC_CMDID_ASSIGN			0x157
-#define DPRC_CMDID_UNASSIGN			0x158
-#define DPRC_CMDID_GET_OBJ_COUNT		0x159
-#define DPRC_CMDID_GET_OBJ			0x15A
-#define DPRC_CMDID_GET_RES_COUNT		0x15B
-#define DPRC_CMDID_GET_RES_IDS			0x15C
-#define DPRC_CMDID_GET_OBJ_REG			0x15E
-
-#define DPRC_CMDID_CONNECT			0x167
-#define DPRC_CMDID_DISCONNECT			0x168
-#define DPRC_CMDID_GET_POOL			0x169
-#define DPRC_CMDID_GET_POOL_COUNT		0x16A
-#define DPRC_CMDID_GET_PORTAL_PADDR		0x16B
-
-#define DPRC_CMDID_GET_CONNECTION		0x16C
-
-#endif /* _FSL_DPRC_CMD_H */
diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c
deleted file mode 100644
index 35c06cff1a06..000000000000
--- a/drivers/staging/fsl-mc/bus/dprc-driver.c
+++ /dev/null
@@ -1,486 +0,0 @@
-/*
- * Freescale data path resource container (DPRC) driver
- *
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
- * Author: German Rivera <German.Rivera@freescale.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include "../include/mc-private.h"
-#include "../include/mc-sys.h"
-#include <linux/module.h>
-#include <linux/slab.h>
-#include "dprc-cmd.h"
-
-struct dprc_child_objs {
-	int child_count;
-	struct dprc_obj_desc *child_array;
-};
-
-static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data)
-{
-	int i;
-	struct dprc_child_objs *objs;
-	struct fsl_mc_device *mc_dev;
-
-	WARN_ON(!dev);
-	WARN_ON(!data);
-	mc_dev = to_fsl_mc_device(dev);
-	objs = data;
-
-	for (i = 0; i < objs->child_count; i++) {
-		struct dprc_obj_desc *obj_desc = &objs->child_array[i];
-
-		if (strlen(obj_desc->type) != 0 &&
-		    FSL_MC_DEVICE_MATCH(mc_dev, obj_desc))
-			break;
-	}
-
-	if (i == objs->child_count)
-		fsl_mc_device_remove(mc_dev);
-
-	return 0;
-}
-
-static int __fsl_mc_device_remove(struct device *dev, void *data)
-{
-	WARN_ON(!dev);
-	WARN_ON(data);
-	fsl_mc_device_remove(to_fsl_mc_device(dev));
-	return 0;
-}
-
-/**
- * dprc_remove_devices - Removes devices for objects removed from a DPRC
- *
- * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
- * @obj_desc_array: array of object descriptors for child objects currently
- * present in the DPRC in the MC.
- * @num_child_objects_in_mc: number of entries in obj_desc_array
- *
- * Synchronizes the state of the Linux bus driver with the actual state of
- * the MC by removing devices that represent MC objects that have
- * been dynamically removed in the physical DPRC.
- */
-static void dprc_remove_devices(struct fsl_mc_device *mc_bus_dev,
-				struct dprc_obj_desc *obj_desc_array,
-				int num_child_objects_in_mc)
-{
-	if (num_child_objects_in_mc != 0) {
-		/*
-		 * Remove child objects that are in the DPRC in Linux,
-		 * but not in the MC:
-		 */
-		struct dprc_child_objs objs;
-
-		objs.child_count = num_child_objects_in_mc;
-		objs.child_array = obj_desc_array;
-		device_for_each_child(&mc_bus_dev->dev, &objs,
-				      __fsl_mc_device_remove_if_not_in_mc);
-	} else {
-		/*
-		 * There are no child objects for this DPRC in the MC.
-		 * So, remove all the child devices from Linux:
-		 */
-		device_for_each_child(&mc_bus_dev->dev, NULL,
-				      __fsl_mc_device_remove);
-	}
-}
-
-static int __fsl_mc_device_match(struct device *dev, void *data)
-{
-	struct dprc_obj_desc *obj_desc = data;
-	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
-
-	return FSL_MC_DEVICE_MATCH(mc_dev, obj_desc);
-}
-
-static struct fsl_mc_device *fsl_mc_device_lookup(struct dprc_obj_desc
-								*obj_desc,
-						  struct fsl_mc_device
-								*mc_bus_dev)
-{
-	struct device *dev;
-
-	dev = device_find_child(&mc_bus_dev->dev, obj_desc,
-				__fsl_mc_device_match);
-
-	return dev ? to_fsl_mc_device(dev) : NULL;
-}
-
-/**
- * check_plugged_state_change - Check change in an MC object's plugged state
- *
- * @mc_dev: pointer to the fsl-mc device for a given MC object
- * @obj_desc: pointer to the MC object's descriptor in the MC
- *
- * If the plugged state has changed from unplugged to plugged, the fsl-mc
- * device is bound to the corresponding device driver.
- * If the plugged state has changed from plugged to unplugged, the fsl-mc
- * device is unbound from the corresponding device driver.
- */
-static void check_plugged_state_change(struct fsl_mc_device *mc_dev,
-				       struct dprc_obj_desc *obj_desc)
-{
-	int error;
-	uint32_t plugged_flag_at_mc =
-			(obj_desc->state & DPRC_OBJ_STATE_PLUGGED);
-
-	if (plugged_flag_at_mc !=
-	    (mc_dev->obj_desc.state & DPRC_OBJ_STATE_PLUGGED)) {
-		if (plugged_flag_at_mc) {
-			mc_dev->obj_desc.state |= DPRC_OBJ_STATE_PLUGGED;
-			error = device_attach(&mc_dev->dev);
-			if (error < 0) {
-				dev_err(&mc_dev->dev,
-					"device_attach() failed: %d\n",
-					error);
-			}
-		} else {
-			mc_dev->obj_desc.state &= ~DPRC_OBJ_STATE_PLUGGED;
-			device_release_driver(&mc_dev->dev);
-		}
-	}
-}
-
-/**
- * dprc_add_new_devices - Adds devices to the logical bus for a DPRC
- *
- * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
- * @obj_desc_array: array of device descriptors for child devices currently
- * present in the physical DPRC.
- * @num_child_objects_in_mc: number of entries in obj_desc_array
- *
- * Synchronizes the state of the Linux bus driver with the actual
- * state of the MC by adding objects that have been newly discovered
- * in the physical DPRC.
- */
-static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev,
-				 struct dprc_obj_desc *obj_desc_array,
-				 int num_child_objects_in_mc)
-{
-	int error;
-	int i;
-
-	for (i = 0; i < num_child_objects_in_mc; i++) {
-		struct fsl_mc_device *child_dev;
-		struct dprc_obj_desc *obj_desc = &obj_desc_array[i];
-
-		if (strlen(obj_desc->type) == 0)
-			continue;
-
-		/*
-		 * Check if device is already known to Linux:
-		 */
-		child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev);
-		if (child_dev) {
-			check_plugged_state_change(child_dev, obj_desc);
-			continue;
-		}
-
-		error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev,
-					  &child_dev);
-		if (error < 0)
-			continue;
-	}
-}
-
-static void dprc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev)
-{
-	int pool_type;
-	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
-
-	for (pool_type = 0; pool_type < FSL_MC_NUM_POOL_TYPES; pool_type++) {
-		struct fsl_mc_resource_pool *res_pool =
-		    &mc_bus->resource_pools[pool_type];
-
-		res_pool->type = pool_type;
-		res_pool->max_count = 0;
-		res_pool->free_count = 0;
-		res_pool->mc_bus = mc_bus;
-		INIT_LIST_HEAD(&res_pool->free_list);
-		mutex_init(&res_pool->mutex);
-	}
-}
-
-static void dprc_cleanup_resource_pool(struct fsl_mc_device *mc_bus_dev,
-				       enum fsl_mc_pool_type pool_type)
-{
-	struct fsl_mc_resource *resource;
-	struct fsl_mc_resource *next;
-	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
-	struct fsl_mc_resource_pool *res_pool =
-					&mc_bus->resource_pools[pool_type];
-	int free_count = 0;
-
-	WARN_ON(res_pool->type != pool_type);
-	WARN_ON(res_pool->free_count != res_pool->max_count);
-
-	list_for_each_entry_safe(resource, next, &res_pool->free_list, node) {
-		free_count++;
-		WARN_ON(resource->type != res_pool->type);
-		WARN_ON(resource->parent_pool != res_pool);
-		devm_kfree(&mc_bus_dev->dev, resource);
-	}
-
-	WARN_ON(free_count != res_pool->free_count);
-}
-
-static void dprc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev)
-{
-	int pool_type;
-
-	for (pool_type = 0; pool_type < FSL_MC_NUM_POOL_TYPES; pool_type++)
-		dprc_cleanup_resource_pool(mc_bus_dev, pool_type);
-}
-
-/**
- * dprc_scan_objects - Discover objects in a DPRC
- *
- * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
- *
- * Detects objects added and removed from a DPRC and synchronizes the
- * state of the Linux bus driver, MC by adding and removing
- * devices accordingly.
- * Two types of devices can be found in a DPRC: allocatable objects (e.g.,
- * dpbp, dpmcp) and non-allocatable devices (e.g., dprc, dpni).
- * All allocatable devices needed to be probed before all non-allocatable
- * devices, to ensure that device drivers for non-allocatable
- * devices can allocate any type of allocatable devices.
- * That is, we need to ensure that the corresponding resource pools are
- * populated before they can get allocation requests from probe callbacks
- * of the device drivers for the non-allocatable devices.
- */
-int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev)
-{
-	int num_child_objects;
-	int dprc_get_obj_failures;
-	int error;
-	struct dprc_obj_desc *child_obj_desc_array = NULL;
-
-	error = dprc_get_obj_count(mc_bus_dev->mc_io,
-				   mc_bus_dev->mc_handle,
-				   &num_child_objects);
-	if (error < 0) {
-		dev_err(&mc_bus_dev->dev, "dprc_get_obj_count() failed: %d\n",
-			error);
-		return error;
-	}
-
-	if (num_child_objects != 0) {
-		int i;
-
-		child_obj_desc_array =
-		    devm_kmalloc_array(&mc_bus_dev->dev, num_child_objects,
-				       sizeof(*child_obj_desc_array),
-				       GFP_KERNEL);
-		if (!child_obj_desc_array)
-			return -ENOMEM;
-
-		/*
-		 * Discover objects currently present in the physical DPRC:
-		 */
-		dprc_get_obj_failures = 0;
-		for (i = 0; i < num_child_objects; i++) {
-			struct dprc_obj_desc *obj_desc =
-			    &child_obj_desc_array[i];
-
-			error = dprc_get_obj(mc_bus_dev->mc_io,
-					     mc_bus_dev->mc_handle,
-					     i, obj_desc);
-			if (error < 0) {
-				dev_err(&mc_bus_dev->dev,
-					"dprc_get_obj(i=%d) failed: %d\n",
-					i, error);
-				/*
-				 * Mark the obj entry as "invalid", by using the
-				 * empty string as obj type:
-				 */
-				obj_desc->type[0] = '\0';
-				obj_desc->id = error;
-				dprc_get_obj_failures++;
-				continue;
-			}
-
-			dev_dbg(&mc_bus_dev->dev,
-				"Discovered object: type %s, id %d\n",
-				obj_desc->type, obj_desc->id);
-		}
-
-		if (dprc_get_obj_failures != 0) {
-			dev_err(&mc_bus_dev->dev,
-				"%d out of %d devices could not be retrieved\n",
-				dprc_get_obj_failures, num_child_objects);
-		}
-	}
-
-	dprc_remove_devices(mc_bus_dev, child_obj_desc_array,
-			    num_child_objects);
-
-	dprc_add_new_devices(mc_bus_dev, child_obj_desc_array,
-			     num_child_objects);
-
-	if (child_obj_desc_array)
-		devm_kfree(&mc_bus_dev->dev, child_obj_desc_array);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(dprc_scan_objects);
-
-/**
- * dprc_scan_container - Scans a physical DPRC and synchronizes Linux bus state
- *
- * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
- *
- * Scans the physical DPRC and synchronizes the state of the Linux
- * bus driver with the actual state of the MC by adding and removing
- * devices as appropriate.
- */
-int dprc_scan_container(struct fsl_mc_device *mc_bus_dev)
-{
-	int error;
-	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev);
-
-	dprc_init_all_resource_pools(mc_bus_dev);
-
-	/*
-	 * Discover objects in the DPRC:
-	 */
-	mutex_lock(&mc_bus->scan_mutex);
-	error = dprc_scan_objects(mc_bus_dev);
-	mutex_unlock(&mc_bus->scan_mutex);
-	if (error < 0)
-		goto error;
-
-	return 0;
-error:
-	dprc_cleanup_all_resource_pools(mc_bus_dev);
-	return error;
-}
-EXPORT_SYMBOL_GPL(dprc_scan_container);
-
-/**
- * dprc_probe - callback invoked when a DPRC is being bound to this driver
- *
- * @mc_dev: Pointer to fsl-mc device representing a DPRC
- *
- * It opens the physical DPRC in the MC.
- * It scans the DPRC to discover the MC objects contained in it.
- * It creates the interrupt pool for the MC bus associated with the DPRC.
- * It configures the interrupts for the DPRC device itself.
- */
-static int dprc_probe(struct fsl_mc_device *mc_dev)
-{
-	int error;
-	size_t region_size;
-	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev);
-
-	if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0))
-		return -EINVAL;
-
-	if (!mc_dev->mc_io) {
-		/*
-		 * This is a child DPRC:
-		 */
-		if (WARN_ON(mc_dev->obj_desc.region_count == 0))
-			return -EINVAL;
-
-		region_size = mc_dev->regions[0].end -
-			      mc_dev->regions[0].start + 1;
-
-		error = fsl_create_mc_io(&mc_dev->dev,
-					 mc_dev->regions[0].start,
-					 region_size,
-					 NULL, 0, &mc_dev->mc_io);
-		if (error < 0)
-			return error;
-	}
-
-	error = dprc_open(mc_dev->mc_io, mc_dev->obj_desc.id,
-			  &mc_dev->mc_handle);
-	if (error < 0) {
-		dev_err(&mc_dev->dev, "dprc_open() failed: %d\n", error);
-		goto error_cleanup_mc_io;
-	}
-
-	mutex_init(&mc_bus->scan_mutex);
-
-	/*
-	 * Discover MC objects in DPRC object:
-	 */
-	error = dprc_scan_container(mc_dev);
-	if (error < 0)
-		goto error_cleanup_open;
-
-	dev_info(&mc_dev->dev, "DPRC device bound to driver");
-	return 0;
-
-error_cleanup_open:
-	(void)dprc_close(mc_dev->mc_io, mc_dev->mc_handle);
-
-error_cleanup_mc_io:
-	fsl_destroy_mc_io(mc_dev->mc_io);
-	return error;
-}
-
-/**
- * dprc_remove - callback invoked when a DPRC is being unbound from this driver
- *
- * @mc_dev: Pointer to fsl-mc device representing the DPRC
- *
- * It removes the DPRC's child objects from Linux (not from the MC) and
- * closes the DPRC device in the MC.
- * It tears down the interrupts that were configured for the DPRC device.
- * It destroys the interrupt pool associated with this MC bus.
- */
-static int dprc_remove(struct fsl_mc_device *mc_dev)
-{
-	int error;
-
-	if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0))
-		return -EINVAL;
-	if (WARN_ON(!mc_dev->mc_io))
-		return -EINVAL;
-
-	device_for_each_child(&mc_dev->dev, NULL, __fsl_mc_device_remove);
-	dprc_cleanup_all_resource_pools(mc_dev);
-	error = dprc_close(mc_dev->mc_io, mc_dev->mc_handle);
-	if (error < 0)
-		dev_err(&mc_dev->dev, "dprc_close() failed: %d\n", error);
-
-	dev_info(&mc_dev->dev, "DPRC device unbound from driver");
-	return 0;
-}
-
-static const struct fsl_mc_device_match_id match_id_table[] = {
-	{
-	 .vendor = FSL_MC_VENDOR_FREESCALE,
-	 .obj_type = "dprc",
-	 .ver_major = DPRC_VER_MAJOR,
-	 .ver_minor = DPRC_VER_MINOR},
-	{.vendor = 0x0},
-};
-
-static struct fsl_mc_driver dprc_driver = {
-	.driver = {
-		   .name = FSL_MC_DPRC_DRIVER_NAME,
-		   .owner = THIS_MODULE,
-		   .pm = NULL,
-		   },
-	.match_id_table = match_id_table,
-	.probe = dprc_probe,
-	.remove = dprc_remove,
-};
-
-int __init dprc_driver_init(void)
-{
-	return fsl_mc_driver_register(&dprc_driver);
-}
-
-void __exit dprc_driver_exit(void)
-{
-	fsl_mc_driver_unregister(&dprc_driver);
-}
diff --git a/drivers/staging/fsl-mc/bus/dprc.c b/drivers/staging/fsl-mc/bus/dprc.c
deleted file mode 100644
index 19b26e630b62..000000000000
--- a/drivers/staging/fsl-mc/bus/dprc.c
+++ /dev/null
@@ -1,913 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in the
-* documentation and/or other materials provided with the distribution.
-* * Neither the name of the above-listed copyright holders nor the
-* names of any contributors may be used to endorse or promote products
-* derived from this software without specific prior written permission.
-*
-*
-* ALTERNATIVELY, this software may be distributed under the terms of the
-* GNU General Public License ("GPL") as published by the Free Software
-* Foundation, either version 2 of that License or (at your option) any
-* later version.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
-* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-*/
-#include "../include/mc-sys.h"
-#include "../include/mc-cmd.h"
-#include "../include/dprc.h"
-#include "dprc-cmd.h"
-
-int dprc_open(struct fsl_mc_io *mc_io, int container_id, uint16_t *token)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_OPEN, MC_CMD_PRI_LOW,
-					  0);
-	cmd.params[0] |= mc_enc(0, 32, container_id);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*token = MC_CMD_HDR_READ_TOKEN(cmd.header);
-
-	return 0;
-}
-EXPORT_SYMBOL(dprc_open);
-
-int dprc_close(struct fsl_mc_io *mc_io, uint16_t token)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLOSE, MC_CMD_PRI_HIGH,
-					  token);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-EXPORT_SYMBOL(dprc_close);
-
-int dprc_create_container(struct fsl_mc_io *mc_io,
-			  uint16_t token,
-			  struct dprc_cfg *cfg,
-			  int *child_container_id,
-			  uint64_t *child_portal_paddr)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.params[0] |= mc_enc(32, 16, cfg->icid);
-	cmd.params[0] |= mc_enc(0, 32, cfg->options);
-	cmd.params[1] |= mc_enc(32, 32, cfg->portal_id);
-
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CREATE_CONT,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*child_container_id = mc_dec(cmd.params[1], 0, 32);
-	*child_portal_paddr = mc_dec(cmd.params[2], 0, 64);
-
-	return 0;
-}
-
-int dprc_destroy_container(struct fsl_mc_io *mc_io,
-			   uint16_t token,
-			   int child_container_id)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_DESTROY_CONT,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, child_container_id);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_reset_container(struct fsl_mc_io *mc_io,
-			 uint16_t token,
-			 int child_container_id)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_RESET_CONT,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, child_container_id);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_irq(struct fsl_mc_io *mc_io,
-		 uint16_t token,
-		 uint8_t irq_index,
-		 int *type,
-		 uint64_t *irq_paddr,
-		 uint32_t *irq_val,
-		 int *user_irq_id)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*irq_val = mc_dec(cmd.params[0], 0, 32);
-	*irq_paddr = mc_dec(cmd.params[1], 0, 64);
-	*user_irq_id = mc_dec(cmd.params[2], 0, 32);
-	*type = mc_dec(cmd.params[2], 32, 32);
-
-	return 0;
-}
-
-int dprc_set_irq(struct fsl_mc_io *mc_io,
-		 uint16_t token,
-		 uint8_t irq_index,
-		 uint64_t irq_paddr,
-		 uint32_t irq_val,
-		 int user_irq_id)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-	cmd.params[0] |= mc_enc(0, 32, irq_val);
-	cmd.params[1] |= mc_enc(0, 64, irq_paddr);
-	cmd.params[2] |= mc_enc(0, 32, user_irq_id);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_irq_enable(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			uint8_t irq_index,
-			uint8_t *en)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_ENABLE,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*en = mc_dec(cmd.params[0], 0, 8);
-
-	return 0;
-}
-
-int dprc_set_irq_enable(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			uint8_t irq_index,
-			uint8_t en)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_ENABLE,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 8, en);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_irq_mask(struct fsl_mc_io *mc_io,
-		      uint16_t token,
-		      uint8_t irq_index,
-		      uint32_t *mask)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_MASK,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*mask = mc_dec(cmd.params[0], 0, 32);
-
-	return 0;
-}
-
-int dprc_set_irq_mask(struct fsl_mc_io *mc_io,
-		      uint16_t token,
-		      uint8_t irq_index,
-		      uint32_t mask)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_MASK,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, mask);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_irq_status(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			uint8_t irq_index,
-			uint32_t *status)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_STATUS,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*status = mc_dec(cmd.params[0], 0, 32);
-
-	return 0;
-}
-
-int dprc_clear_irq_status(struct fsl_mc_io *mc_io,
-			  uint16_t token,
-			  uint8_t irq_index,
-			  uint32_t status)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLEAR_IRQ_STATUS,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, status);
-	cmd.params[0] |= mc_enc(32, 8, irq_index);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_attributes(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			struct dprc_attributes *attr)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_ATTR,
-					  MC_CMD_PRI_LOW,
-					  token);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	attr->container_id = mc_dec(cmd.params[0], 0, 32);
-	attr->icid = mc_dec(cmd.params[0], 32, 16);
-	attr->options = mc_dec(cmd.params[1], 0, 32);
-	attr->portal_id = mc_dec(cmd.params[1], 32, 32);
-	attr->version.major = mc_dec(cmd.params[2], 0, 16);
-	attr->version.minor = mc_dec(cmd.params[2], 16, 16);
-
-	return 0;
-}
-
-int dprc_set_res_quota(struct fsl_mc_io *mc_io,
-		       uint16_t token,
-		       int child_container_id,
-		       char *type,
-		       uint16_t quota)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_RES_QUOTA,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, child_container_id);
-	cmd.params[0] |= mc_enc(32, 16, quota);
-	cmd.params[1] |= mc_enc(0, 8, type[0]);
-	cmd.params[1] |= mc_enc(8, 8, type[1]);
-	cmd.params[1] |= mc_enc(16, 8, type[2]);
-	cmd.params[1] |= mc_enc(24, 8, type[3]);
-	cmd.params[1] |= mc_enc(32, 8, type[4]);
-	cmd.params[1] |= mc_enc(40, 8, type[5]);
-	cmd.params[1] |= mc_enc(48, 8, type[6]);
-	cmd.params[1] |= mc_enc(56, 8, type[7]);
-	cmd.params[2] |= mc_enc(0, 8, type[8]);
-	cmd.params[2] |= mc_enc(8, 8, type[9]);
-	cmd.params[2] |= mc_enc(16, 8, type[10]);
-	cmd.params[2] |= mc_enc(24, 8, type[11]);
-	cmd.params[2] |= mc_enc(32, 8, type[12]);
-	cmd.params[2] |= mc_enc(40, 8, type[13]);
-	cmd.params[2] |= mc_enc(48, 8, type[14]);
-	cmd.params[2] |= mc_enc(56, 8, '\0');
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_res_quota(struct fsl_mc_io *mc_io,
-		       uint16_t token,
-		       int child_container_id,
-		       char *type,
-		       uint16_t *quota)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_QUOTA,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, child_container_id);
-	cmd.params[1] |= mc_enc(0, 8, type[0]);
-	cmd.params[1] |= mc_enc(8, 8, type[1]);
-	cmd.params[1] |= mc_enc(16, 8, type[2]);
-	cmd.params[1] |= mc_enc(24, 8, type[3]);
-	cmd.params[1] |= mc_enc(32, 8, type[4]);
-	cmd.params[1] |= mc_enc(40, 8, type[5]);
-	cmd.params[1] |= mc_enc(48, 8, type[6]);
-	cmd.params[1] |= mc_enc(56, 8, type[7]);
-	cmd.params[2] |= mc_enc(0, 8, type[8]);
-	cmd.params[2] |= mc_enc(8, 8, type[9]);
-	cmd.params[2] |= mc_enc(16, 8, type[10]);
-	cmd.params[2] |= mc_enc(24, 8, type[11]);
-	cmd.params[2] |= mc_enc(32, 8, type[12]);
-	cmd.params[2] |= mc_enc(40, 8, type[13]);
-	cmd.params[2] |= mc_enc(48, 8, type[14]);
-	cmd.params[2] |= mc_enc(56, 8, '\0');
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*quota = mc_dec(cmd.params[0], 32, 16);
-
-	return 0;
-}
-
-int dprc_assign(struct fsl_mc_io *mc_io,
-		uint16_t token,
-		int container_id,
-		struct dprc_res_req *res_req)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_ASSIGN,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, container_id);
-	cmd.params[0] |= mc_enc(32, 32, res_req->options);
-	cmd.params[1] |= mc_enc(0, 32, res_req->num);
-	cmd.params[1] |= mc_enc(32, 32, res_req->id_base_align);
-	cmd.params[2] |= mc_enc(0, 8, res_req->type[0]);
-	cmd.params[2] |= mc_enc(8, 8, res_req->type[1]);
-	cmd.params[2] |= mc_enc(16, 8, res_req->type[2]);
-	cmd.params[2] |= mc_enc(24, 8, res_req->type[3]);
-	cmd.params[2] |= mc_enc(32, 8, res_req->type[4]);
-	cmd.params[2] |= mc_enc(40, 8, res_req->type[5]);
-	cmd.params[2] |= mc_enc(48, 8, res_req->type[6]);
-	cmd.params[2] |= mc_enc(56, 8, res_req->type[7]);
-	cmd.params[3] |= mc_enc(0, 8, res_req->type[8]);
-	cmd.params[3] |= mc_enc(8, 8, res_req->type[9]);
-	cmd.params[3] |= mc_enc(16, 8, res_req->type[10]);
-	cmd.params[3] |= mc_enc(24, 8, res_req->type[11]);
-	cmd.params[3] |= mc_enc(32, 8, res_req->type[12]);
-	cmd.params[3] |= mc_enc(40, 8, res_req->type[13]);
-	cmd.params[3] |= mc_enc(48, 8, res_req->type[14]);
-	cmd.params[3] |= mc_enc(56, 8, res_req->type[15]);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_unassign(struct fsl_mc_io *mc_io,
-		  uint16_t token,
-		  int child_container_id,
-		  struct dprc_res_req *res_req)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_UNASSIGN,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(0, 32, child_container_id);
-	cmd.params[0] |= mc_enc(32, 32, res_req->options);
-	cmd.params[1] |= mc_enc(0, 32, res_req->num);
-	cmd.params[1] |= mc_enc(32, 32, res_req->id_base_align);
-	cmd.params[2] |= mc_enc(0, 8, res_req->type[0]);
-	cmd.params[2] |= mc_enc(8, 8, res_req->type[1]);
-	cmd.params[2] |= mc_enc(16, 8, res_req->type[2]);
-	cmd.params[2] |= mc_enc(24, 8, res_req->type[3]);
-	cmd.params[2] |= mc_enc(32, 8, res_req->type[4]);
-	cmd.params[2] |= mc_enc(40, 8, res_req->type[5]);
-	cmd.params[2] |= mc_enc(48, 8, res_req->type[6]);
-	cmd.params[2] |= mc_enc(56, 8, res_req->type[7]);
-	cmd.params[3] |= mc_enc(0, 8, res_req->type[8]);
-	cmd.params[3] |= mc_enc(8, 8, res_req->type[9]);
-	cmd.params[3] |= mc_enc(16, 8, res_req->type[10]);
-	cmd.params[3] |= mc_enc(24, 8, res_req->type[11]);
-	cmd.params[3] |= mc_enc(32, 8, res_req->type[12]);
-	cmd.params[3] |= mc_enc(40, 8, res_req->type[13]);
-	cmd.params[3] |= mc_enc(48, 8, res_req->type[14]);
-	cmd.params[3] |= mc_enc(56, 8, res_req->type[15]);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_pool_count(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			int *pool_count)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL_COUNT,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*pool_count = mc_dec(cmd.params[0], 0, 32);
-
-	return 0;
-}
-
-int dprc_get_pool(struct fsl_mc_io *mc_io,
-		  uint16_t token,
-		  int pool_index,
-		  char *type)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(0, 32, pool_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	type[0] = mc_dec(cmd.params[1], 0, 8);
-	type[1] = mc_dec(cmd.params[1], 8, 8);
-	type[2] = mc_dec(cmd.params[1], 16, 8);
-	type[3] = mc_dec(cmd.params[1], 24, 8);
-	type[4] = mc_dec(cmd.params[1], 32, 8);
-	type[5] = mc_dec(cmd.params[1], 40, 8);
-	type[6] = mc_dec(cmd.params[1], 48, 8);
-	type[7] = mc_dec(cmd.params[1], 56, 8);
-	type[8] = mc_dec(cmd.params[2], 0, 8);
-	type[9] = mc_dec(cmd.params[2], 8, 8);
-	type[10] = mc_dec(cmd.params[2], 16, 8);
-	type[11] = mc_dec(cmd.params[2], 24, 8);
-	type[12] = mc_dec(cmd.params[2], 32, 8);
-	type[13] = mc_dec(cmd.params[2], 40, 8);
-	type[14] = mc_dec(cmd.params[2], 48, 8);
-	type[15] = '\0';
-
-	return 0;
-}
-
-int dprc_get_obj_count(struct fsl_mc_io *mc_io, uint16_t token, int *obj_count)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_COUNT,
-					  MC_CMD_PRI_LOW, token);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*obj_count = mc_dec(cmd.params[0], 32, 32);
-
-	return 0;
-}
-EXPORT_SYMBOL(dprc_get_obj_count);
-
-int dprc_get_obj(struct fsl_mc_io *mc_io,
-		 uint16_t token,
-		 int obj_index,
-		 struct dprc_obj_desc *obj_desc)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(0, 32, obj_index);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	obj_desc->id = mc_dec(cmd.params[0], 32, 32);
-	obj_desc->vendor = mc_dec(cmd.params[1], 0, 16);
-	obj_desc->irq_count = mc_dec(cmd.params[1], 16, 8);
-	obj_desc->region_count = mc_dec(cmd.params[1], 24, 8);
-	obj_desc->state = mc_dec(cmd.params[1], 32, 32);
-	obj_desc->ver_major = mc_dec(cmd.params[2], 0, 16);
-	obj_desc->ver_minor = mc_dec(cmd.params[2], 16, 16);
-	obj_desc->type[0] = mc_dec(cmd.params[3], 0, 8);
-	obj_desc->type[1] = mc_dec(cmd.params[3], 8, 8);
-	obj_desc->type[2] = mc_dec(cmd.params[3], 16, 8);
-	obj_desc->type[3] = mc_dec(cmd.params[3], 24, 8);
-	obj_desc->type[4] = mc_dec(cmd.params[3], 32, 8);
-	obj_desc->type[5] = mc_dec(cmd.params[3], 40, 8);
-	obj_desc->type[6] = mc_dec(cmd.params[3], 48, 8);
-	obj_desc->type[7] = mc_dec(cmd.params[3], 56, 8);
-	obj_desc->type[8] = mc_dec(cmd.params[4], 0, 8);
-	obj_desc->type[9] = mc_dec(cmd.params[4], 8, 8);
-	obj_desc->type[10] = mc_dec(cmd.params[4], 16, 8);
-	obj_desc->type[11] = mc_dec(cmd.params[4], 24, 8);
-	obj_desc->type[12] = mc_dec(cmd.params[4], 32, 8);
-	obj_desc->type[13] = mc_dec(cmd.params[4], 40, 8);
-	obj_desc->type[14] = mc_dec(cmd.params[4], 48, 8);
-	obj_desc->type[15] = '\0';
-
-	return 0;
-}
-EXPORT_SYMBOL(dprc_get_obj);
-
-int dprc_get_res_count(struct fsl_mc_io *mc_io,
-		       uint16_t token,
-		       char *type,
-		       int *res_count)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	*res_count = 0;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_COUNT,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[1] |= mc_enc(0, 8, type[0]);
-	cmd.params[1] |= mc_enc(8, 8, type[1]);
-	cmd.params[1] |= mc_enc(16, 8, type[2]);
-	cmd.params[1] |= mc_enc(24, 8, type[3]);
-	cmd.params[1] |= mc_enc(32, 8, type[4]);
-	cmd.params[1] |= mc_enc(40, 8, type[5]);
-	cmd.params[1] |= mc_enc(48, 8, type[6]);
-	cmd.params[1] |= mc_enc(56, 8, type[7]);
-	cmd.params[2] |= mc_enc(0, 8, type[8]);
-	cmd.params[2] |= mc_enc(8, 8, type[9]);
-	cmd.params[2] |= mc_enc(16, 8, type[10]);
-	cmd.params[2] |= mc_enc(24, 8, type[11]);
-	cmd.params[2] |= mc_enc(32, 8, type[12]);
-	cmd.params[2] |= mc_enc(40, 8, type[13]);
-	cmd.params[2] |= mc_enc(48, 8, type[14]);
-	cmd.params[2] |= mc_enc(56, 8, '\0');
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*res_count = mc_dec(cmd.params[0], 0, 32);
-
-	return 0;
-}
-EXPORT_SYMBOL(dprc_get_res_count);
-
-int dprc_get_res_ids(struct fsl_mc_io *mc_io,
-		     uint16_t token,
-		     char *type,
-		     struct dprc_res_ids_range_desc *range_desc)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_IDS,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(42, 7, range_desc->iter_status);
-	cmd.params[1] |= mc_enc(0, 32, range_desc->base_id);
-	cmd.params[1] |= mc_enc(32, 32, range_desc->last_id);
-	cmd.params[2] |= mc_enc(0, 8, type[0]);
-	cmd.params[2] |= mc_enc(8, 8, type[1]);
-	cmd.params[2] |= mc_enc(16, 8, type[2]);
-	cmd.params[2] |= mc_enc(24, 8, type[3]);
-	cmd.params[2] |= mc_enc(32, 8, type[4]);
-	cmd.params[2] |= mc_enc(40, 8, type[5]);
-	cmd.params[2] |= mc_enc(48, 8, type[6]);
-	cmd.params[2] |= mc_enc(56, 8, type[7]);
-	cmd.params[3] |= mc_enc(0, 8, type[8]);
-	cmd.params[3] |= mc_enc(8, 8, type[9]);
-	cmd.params[3] |= mc_enc(16, 8, type[10]);
-	cmd.params[3] |= mc_enc(24, 8, type[11]);
-	cmd.params[3] |= mc_enc(32, 8, type[12]);
-	cmd.params[3] |= mc_enc(40, 8, type[13]);
-	cmd.params[3] |= mc_enc(48, 8, type[14]);
-	cmd.params[3] |= mc_enc(56, 8, '\0');
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	range_desc->iter_status = mc_dec(cmd.params[0], 42, 7);
-	range_desc->base_id = mc_dec(cmd.params[1], 0, 32);
-	range_desc->last_id = mc_dec(cmd.params[1], 32, 32);
-
-	return 0;
-}
-EXPORT_SYMBOL(dprc_get_res_ids);
-
-int dprc_get_portal_paddr(struct fsl_mc_io *mc_io,
-			  uint16_t token,
-			  int portal_id,
-			  uint64_t *portal_addr)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_PORTAL_PADDR,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, portal_id);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	*portal_addr = mc_dec(cmd.params[1], 0, 64);
-
-	return 0;
-}
-EXPORT_SYMBOL(dprc_get_portal_paddr);
-
-int dprc_get_obj_region(struct fsl_mc_io *mc_io,
-			uint16_t token,
-			char *obj_type,
-			int obj_id,
-			uint8_t region_index,
-			struct dprc_region_desc *region_desc)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG,
-					  MC_CMD_PRI_LOW, token);
-	cmd.params[0] |= mc_enc(0, 32, obj_id);
-	cmd.params[0] |= mc_enc(48, 8, region_index);
-	cmd.params[3] |= mc_enc(0, 8, obj_type[0]);
-	cmd.params[3] |= mc_enc(8, 8, obj_type[1]);
-	cmd.params[3] |= mc_enc(16, 8, obj_type[2]);
-	cmd.params[3] |= mc_enc(24, 8, obj_type[3]);
-	cmd.params[3] |= mc_enc(32, 8, obj_type[4]);
-	cmd.params[3] |= mc_enc(40, 8, obj_type[5]);
-	cmd.params[3] |= mc_enc(48, 8, obj_type[6]);
-	cmd.params[3] |= mc_enc(56, 8, obj_type[7]);
-	cmd.params[4] |= mc_enc(0, 8, obj_type[8]);
-	cmd.params[4] |= mc_enc(8, 8, obj_type[9]);
-	cmd.params[4] |= mc_enc(16, 8, obj_type[10]);
-	cmd.params[4] |= mc_enc(24, 8, obj_type[11]);
-	cmd.params[4] |= mc_enc(32, 8, obj_type[12]);
-	cmd.params[4] |= mc_enc(40, 8, obj_type[13]);
-	cmd.params[4] |= mc_enc(48, 8, obj_type[14]);
-	cmd.params[4] |= mc_enc(56, 8, '\0');
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	region_desc->base_paddr = mc_dec(cmd.params[1], 0, 64);
-	region_desc->size = mc_dec(cmd.params[2], 0, 32);
-
-	return 0;
-}
-EXPORT_SYMBOL(dprc_get_obj_region);
-
-int dprc_connect(struct fsl_mc_io *mc_io,
-		 uint16_t token,
-		 const struct dprc_endpoint *endpoint1,
-		 const struct dprc_endpoint *endpoint2)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_CONNECT,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(0, 32, endpoint1->id);
-	cmd.params[0] |= mc_enc(32, 32, endpoint1->interface_id);
-	cmd.params[1] |= mc_enc(0, 32, endpoint2->id);
-	cmd.params[1] |= mc_enc(32, 32, endpoint2->interface_id);
-	cmd.params[2] |= mc_enc(0, 8, endpoint1->type[0]);
-	cmd.params[2] |= mc_enc(8, 8, endpoint1->type[1]);
-	cmd.params[2] |= mc_enc(16, 8, endpoint1->type[2]);
-	cmd.params[2] |= mc_enc(24, 8, endpoint1->type[3]);
-	cmd.params[2] |= mc_enc(32, 8, endpoint1->type[4]);
-	cmd.params[2] |= mc_enc(40, 8, endpoint1->type[5]);
-	cmd.params[2] |= mc_enc(48, 8, endpoint1->type[6]);
-	cmd.params[2] |= mc_enc(56, 8, endpoint1->type[7]);
-	cmd.params[3] |= mc_enc(0, 8, endpoint1->type[8]);
-	cmd.params[3] |= mc_enc(8, 8, endpoint1->type[9]);
-	cmd.params[3] |= mc_enc(16, 8, endpoint1->type[10]);
-	cmd.params[3] |= mc_enc(24, 8, endpoint1->type[11]);
-	cmd.params[3] |= mc_enc(32, 8, endpoint1->type[12]);
-	cmd.params[3] |= mc_enc(40, 8, endpoint1->type[13]);
-	cmd.params[3] |= mc_enc(48, 8, endpoint1->type[14]);
-	cmd.params[3] |= mc_enc(56, 8, endpoint1->type[15]);
-	cmd.params[5] |= mc_enc(0, 8, endpoint2->type[0]);
-	cmd.params[5] |= mc_enc(8, 8, endpoint2->type[1]);
-	cmd.params[5] |= mc_enc(16, 8, endpoint2->type[2]);
-	cmd.params[5] |= mc_enc(24, 8, endpoint2->type[3]);
-	cmd.params[5] |= mc_enc(32, 8, endpoint2->type[4]);
-	cmd.params[5] |= mc_enc(40, 8, endpoint2->type[5]);
-	cmd.params[5] |= mc_enc(48, 8, endpoint2->type[6]);
-	cmd.params[5] |= mc_enc(56, 8, endpoint2->type[7]);
-	cmd.params[6] |= mc_enc(0, 8, endpoint2->type[8]);
-	cmd.params[6] |= mc_enc(8, 8, endpoint2->type[9]);
-	cmd.params[6] |= mc_enc(16, 8, endpoint2->type[10]);
-	cmd.params[6] |= mc_enc(24, 8, endpoint2->type[11]);
-	cmd.params[6] |= mc_enc(32, 8, endpoint2->type[12]);
-	cmd.params[6] |= mc_enc(40, 8, endpoint2->type[13]);
-	cmd.params[6] |= mc_enc(48, 8, endpoint2->type[14]);
-	cmd.params[6] |= mc_enc(56, 8, endpoint2->type[15]);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_disconnect(struct fsl_mc_io *mc_io,
-		    uint16_t token,
-		    const struct dprc_endpoint *endpoint)
-{
-	struct mc_command cmd = { 0 };
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_DISCONNECT,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(0, 32, endpoint->id);
-	cmd.params[0] |= mc_enc(32, 32, endpoint->interface_id);
-	cmd.params[1] |= mc_enc(0, 8, endpoint->type[0]);
-	cmd.params[1] |= mc_enc(8, 8, endpoint->type[1]);
-	cmd.params[1] |= mc_enc(16, 8, endpoint->type[2]);
-	cmd.params[1] |= mc_enc(24, 8, endpoint->type[3]);
-	cmd.params[1] |= mc_enc(32, 8, endpoint->type[4]);
-	cmd.params[1] |= mc_enc(40, 8, endpoint->type[5]);
-	cmd.params[1] |= mc_enc(48, 8, endpoint->type[6]);
-	cmd.params[1] |= mc_enc(56, 8, endpoint->type[7]);
-	cmd.params[2] |= mc_enc(0, 8, endpoint->type[8]);
-	cmd.params[2] |= mc_enc(8, 8, endpoint->type[9]);
-	cmd.params[2] |= mc_enc(16, 8, endpoint->type[10]);
-	cmd.params[2] |= mc_enc(24, 8, endpoint->type[11]);
-	cmd.params[2] |= mc_enc(32, 8, endpoint->type[12]);
-	cmd.params[2] |= mc_enc(40, 8, endpoint->type[13]);
-	cmd.params[2] |= mc_enc(48, 8, endpoint->type[14]);
-	cmd.params[2] |= mc_enc(56, 8, endpoint->type[15]);
-
-	/* send command to mc*/
-	return mc_send_command(mc_io, &cmd);
-}
-
-int dprc_get_connection(struct fsl_mc_io *mc_io,
-			uint16_t token,
-					const struct dprc_endpoint *endpoint1,
-					struct dprc_endpoint *endpoint2,
-					int *state)
-{
-	struct mc_command cmd = { 0 };
-	int err;
-
-	/* prepare command */
-	cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONNECTION,
-					  MC_CMD_PRI_LOW,
-					  token);
-	cmd.params[0] |= mc_enc(0, 32, endpoint1->id);
-	cmd.params[0] |= mc_enc(32, 32, endpoint1->interface_id);
-	cmd.params[1] |= mc_enc(0, 8, endpoint1->type[0]);
-	cmd.params[1] |= mc_enc(8, 8, endpoint1->type[1]);
-	cmd.params[1] |= mc_enc(16, 8, endpoint1->type[2]);
-	cmd.params[1] |= mc_enc(24, 8, endpoint1->type[3]);
-	cmd.params[1] |= mc_enc(32, 8, endpoint1->type[4]);
-	cmd.params[1] |= mc_enc(40, 8, endpoint1->type[5]);
-	cmd.params[1] |= mc_enc(48, 8, endpoint1->type[6]);
-	cmd.params[1] |= mc_enc(56, 8, endpoint1->type[7]);
-	cmd.params[2] |= mc_enc(0, 8, endpoint1->type[8]);
-	cmd.params[2] |= mc_enc(8, 8, endpoint1->type[9]);
-	cmd.params[2] |= mc_enc(16, 8, endpoint1->type[10]);
-	cmd.params[2] |= mc_enc(24, 8, endpoint1->type[11]);
-	cmd.params[2] |= mc_enc(32, 8, endpoint1->type[12]);
-	cmd.params[2] |= mc_enc(40, 8, endpoint1->type[13]);
-	cmd.params[2] |= mc_enc(48, 8, endpoint1->type[14]);
-	cmd.params[2] |= mc_enc(56, 8, endpoint1->type[15]);
-
-	/* send command to mc*/
-	err = mc_send_command(mc_io, &cmd);
-	if (err)
-		return err;
-
-	/* retrieve response parameters */
-	endpoint2->id = mc_dec(cmd.params[3], 0, 32);
-	endpoint2->interface_id = mc_dec(cmd.params[3], 32, 32);
-	endpoint2->type[0] = mc_dec(cmd.params[4], 0, 8);
-	endpoint2->type[1] = mc_dec(cmd.params[4], 8, 8);
-	endpoint2->type[2] = mc_dec(cmd.params[4], 16, 8);
-	endpoint2->type[3] = mc_dec(cmd.params[4], 24, 8);
-	endpoint2->type[4] = mc_dec(cmd.params[4], 32, 8);
-	endpoint2->type[5] = mc_dec(cmd.params[4], 40, 8);
-	endpoint2->type[6] = mc_dec(cmd.params[4], 48, 8);
-	endpoint2->type[7] = mc_dec(cmd.params[4], 56, 8);
-	endpoint2->type[8] = mc_dec(cmd.params[5], 0, 8);
-	endpoint2->type[9] = mc_dec(cmd.params[5], 8, 8);
-	endpoint2->type[10] = mc_dec(cmd.params[5], 16, 8);
-	endpoint2->type[11] = mc_dec(cmd.params[5], 24, 8);
-	endpoint2->type[12] = mc_dec(cmd.params[5], 32, 8);
-	endpoint2->type[13] = mc_dec(cmd.params[5], 40, 8);
-	endpoint2->type[14] = mc_dec(cmd.params[5], 48, 8);
-	endpoint2->type[15] = mc_dec(cmd.params[5], 56, 8);
-	*state = mc_dec(cmd.params[6], 0, 32);
-
-	return 0;
-}
diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c
deleted file mode 100644
index e36235ddbe3e..000000000000
--- a/drivers/staging/fsl-mc/bus/mc-allocator.c
+++ /dev/null
@@ -1,573 +0,0 @@
-/*
- * Freescale MC object device allocator driver
- *
- * Copyright (C) 2013 Freescale Semiconductor, Inc.
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include "../include/mc-private.h"
-#include "../include/mc-sys.h"
-#include <linux/module.h>
-#include "../include/dpbp-cmd.h"
-#include "../include/dpcon-cmd.h"
-#include "dpmcp-cmd.h"
-#include "dpmcp.h"
-
-/**
- * fsl_mc_resource_pool_add_device - add allocatable device to a resource
- * pool of a given MC bus
- *
- * @mc_bus: pointer to the MC bus
- * @pool_type: MC bus pool type
- * @mc_dev: Pointer to allocatable MC object device
- *
- * It adds an allocatable MC object device to a container's resource pool of
- * the given resource type
- */
-static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus
-								*mc_bus,
-							enum fsl_mc_pool_type
-								pool_type,
-							struct fsl_mc_device
-								*mc_dev)
-{
-	struct fsl_mc_resource_pool *res_pool;
-	struct fsl_mc_resource *resource;
-	struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev;
-	int error = -EINVAL;
-	bool mutex_locked = false;
-
-	if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES))
-		goto out;
-	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
-		goto out;
-	if (WARN_ON(mc_dev->resource))
-		goto out;
-
-	res_pool = &mc_bus->resource_pools[pool_type];
-	if (WARN_ON(res_pool->type != pool_type))
-		goto out;
-	if (WARN_ON(res_pool->mc_bus != mc_bus))
-		goto out;
-
-	mutex_lock(&res_pool->mutex);
-	mutex_locked = true;
-
-	if (WARN_ON(res_pool->max_count < 0))
-		goto out;
-	if (WARN_ON(res_pool->free_count < 0 ||
-		    res_pool->free_count > res_pool->max_count))
-		goto out;
-
-	resource = devm_kzalloc(&mc_bus_dev->dev, sizeof(*resource),
-				GFP_KERNEL);
-	if (!resource) {
-		error = -ENOMEM;
-		dev_err(&mc_bus_dev->dev,
-			"Failed to allocate memory for fsl_mc_resource\n");
-		goto out;
-	}
-
-	resource->type = pool_type;
-	resource->id = mc_dev->obj_desc.id;
-	resource->data = mc_dev;
-	resource->parent_pool = res_pool;
-	INIT_LIST_HEAD(&resource->node);
-	list_add_tail(&resource->node, &res_pool->free_list);
-	mc_dev->resource = resource;
-	res_pool->free_count++;
-	res_pool->max_count++;
-	error = 0;
-out:
-	if (mutex_locked)
-		mutex_unlock(&res_pool->mutex);
-
-	return error;
-}
-
-/**
- * fsl_mc_resource_pool_remove_device - remove an allocatable device from a
- * resource pool
- *
- * @mc_dev: Pointer to allocatable MC object device
- *
- * It permanently removes an allocatable MC object device from the resource
- * pool, the device is currently in, as long as it is in the pool's free list.
- */
-static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device
-								   *mc_dev)
-{
-	struct fsl_mc_device *mc_bus_dev;
-	struct fsl_mc_bus *mc_bus;
-	struct fsl_mc_resource_pool *res_pool;
-	struct fsl_mc_resource *resource;
-	int error = -EINVAL;
-	bool mutex_locked = false;
-
-	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
-		goto out;
-
-	resource = mc_dev->resource;
-	if (WARN_ON(resource->data != mc_dev))
-		goto out;
-
-	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
-	mc_bus = to_fsl_mc_bus(mc_bus_dev);
-	res_pool = resource->parent_pool;
-	if (WARN_ON(res_pool != &mc_bus->resource_pools[resource->type]))
-		goto out;
-
-	mutex_lock(&res_pool->mutex);
-	mutex_locked = true;
-
-	if (WARN_ON(res_pool->max_count <= 0))
-		goto out;
-	if (WARN_ON(res_pool->free_count <= 0 ||
-		    res_pool->free_count > res_pool->max_count))
-		goto out;
-
-	/*
-	 * If the device is currently allocated, its resource is not
-	 * in the free list and thus, the device cannot be removed.
-	 */
-	if (list_empty(&resource->node)) {
-		error = -EBUSY;
-		dev_err(&mc_bus_dev->dev,
-			"Device %s cannot be removed from resource pool\n",
-			dev_name(&mc_dev->dev));
-		goto out;
-	}
-
-	list_del(&resource->node);
-	INIT_LIST_HEAD(&resource->node);
-	res_pool->free_count--;
-	res_pool->max_count--;
-
-	devm_kfree(&mc_bus_dev->dev, resource);
-	mc_dev->resource = NULL;
-	error = 0;
-out:
-	if (mutex_locked)
-		mutex_unlock(&res_pool->mutex);
-
-	return error;
-}
-
-static const char *const fsl_mc_pool_type_strings[] = {
-	[FSL_MC_POOL_DPMCP] = "dpmcp",
-	[FSL_MC_POOL_DPBP] = "dpbp",
-	[FSL_MC_POOL_DPCON] = "dpcon",
-};
-
-static int __must_check object_type_to_pool_type(const char *object_type,
-						 enum fsl_mc_pool_type
-								*pool_type)
-{
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(fsl_mc_pool_type_strings); i++) {
-		if (strcmp(object_type, fsl_mc_pool_type_strings[i]) == 0) {
-			*pool_type = i;
-			return 0;
-		}
-	}
-
-	return -EINVAL;
-}
-
-int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
-					  enum fsl_mc_pool_type pool_type,
-					  struct fsl_mc_resource **new_resource)
-{
-	struct fsl_mc_resource_pool *res_pool;
-	struct fsl_mc_resource *resource;
-	struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev;
-	int error = -EINVAL;
-	bool mutex_locked = false;
-
-	BUILD_BUG_ON(ARRAY_SIZE(fsl_mc_pool_type_strings) !=
-		     FSL_MC_NUM_POOL_TYPES);
-
-	*new_resource = NULL;
-	if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES))
-		goto error;
-
-	res_pool = &mc_bus->resource_pools[pool_type];
-	if (WARN_ON(res_pool->mc_bus != mc_bus))
-		goto error;
-
-	mutex_lock(&res_pool->mutex);
-	mutex_locked = true;
-	resource = list_first_entry_or_null(&res_pool->free_list,
-					    struct fsl_mc_resource, node);
-
-	if (!resource) {
-		WARN_ON(res_pool->free_count != 0);
-		error = -ENXIO;
-		dev_err(&mc_bus_dev->dev,
-			"No more resources of type %s left\n",
-			fsl_mc_pool_type_strings[pool_type]);
-		goto error;
-	}
-
-	if (WARN_ON(resource->type != pool_type))
-		goto error;
-	if (WARN_ON(resource->parent_pool != res_pool))
-		goto error;
-	if (WARN_ON(res_pool->free_count <= 0 ||
-		    res_pool->free_count > res_pool->max_count))
-		goto error;
-
-	list_del(&resource->node);
-	INIT_LIST_HEAD(&resource->node);
-
-	res_pool->free_count--;
-	mutex_unlock(&res_pool->mutex);
-	*new_resource = resource;
-	return 0;
-error:
-	if (mutex_locked)
-		mutex_unlock(&res_pool->mutex);
-
-	return error;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_resource_allocate);
-
-void fsl_mc_resource_free(struct fsl_mc_resource *resource)
-{
-	struct fsl_mc_resource_pool *res_pool;
-	bool mutex_locked = false;
-
-	res_pool = resource->parent_pool;
-	if (WARN_ON(resource->type != res_pool->type))
-		goto out;
-
-	mutex_lock(&res_pool->mutex);
-	mutex_locked = true;
-	if (WARN_ON(res_pool->free_count < 0 ||
-		    res_pool->free_count >= res_pool->max_count))
-		goto out;
-
-	if (WARN_ON(!list_empty(&resource->node)))
-		goto out;
-
-	list_add_tail(&resource->node, &res_pool->free_list);
-	res_pool->free_count++;
-out:
-	if (mutex_locked)
-		mutex_unlock(&res_pool->mutex);
-}
-EXPORT_SYMBOL_GPL(fsl_mc_resource_free);
-
-/**
- * fsl_mc_portal_allocate - Allocates an MC portal
- *
- * @mc_dev: MC device for which the MC portal is to be allocated
- * @mc_io_flags: Flags for the fsl_mc_io object that wraps the allocated
- * MC portal.
- * @new_mc_io: Pointer to area where the pointer to the fsl_mc_io object
- * that wraps the allocated MC portal is to be returned
- *
- * This function allocates an MC portal from the device's parent DPRC,
- * from the corresponding MC bus' pool of MC portals and wraps
- * it in a new fsl_mc_io object. If 'mc_dev' is a DPRC itself, the
- * portal is allocated from its own MC bus.
- */
-int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
-					uint16_t mc_io_flags,
-					struct fsl_mc_io **new_mc_io)
-{
-	struct fsl_mc_device *mc_bus_dev;
-	struct fsl_mc_bus *mc_bus;
-	phys_addr_t mc_portal_phys_addr;
-	size_t mc_portal_size;
-	struct fsl_mc_device *mc_adev;
-	int error = -EINVAL;
-	struct fsl_mc_resource *resource = NULL;
-	struct fsl_mc_io *mc_io = NULL;
-
-	if (mc_dev->flags & FSL_MC_IS_DPRC) {
-		mc_bus_dev = mc_dev;
-	} else {
-		if (WARN_ON(mc_dev->dev.parent->bus != &fsl_mc_bus_type))
-			return error;
-
-		mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
-	}
-
-	mc_bus = to_fsl_mc_bus(mc_bus_dev);
-	*new_mc_io = NULL;
-	error = fsl_mc_resource_allocate(mc_bus, FSL_MC_POOL_DPMCP, &resource);
-	if (error < 0)
-		return error;
-
-	mc_adev = resource->data;
-	if (WARN_ON(!mc_adev))
-		goto error_cleanup_resource;
-
-	if (WARN_ON(mc_adev->obj_desc.region_count == 0))
-		goto error_cleanup_resource;
-
-	mc_portal_phys_addr = mc_adev->regions[0].start;
-	mc_portal_size = mc_adev->regions[0].end -
-			 mc_adev->regions[0].start + 1;
-
-	if (WARN_ON(mc_portal_size != mc_bus_dev->mc_io->portal_size))
-		goto error_cleanup_resource;
-
-	error = fsl_create_mc_io(&mc_bus_dev->dev,
-				 mc_portal_phys_addr,
-				 mc_portal_size, resource,
-				 mc_io_flags, &mc_io);
-	if (error < 0)
-		goto error_cleanup_resource;
-
-	*new_mc_io = mc_io;
-	return 0;
-
-error_cleanup_resource:
-	fsl_mc_resource_free(resource);
-	return error;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_portal_allocate);
-
-/**
- * fsl_mc_portal_free - Returns an MC portal to the pool of free MC portals
- * of a given MC bus
- *
- * @mc_io: Pointer to the fsl_mc_io object that wraps the MC portal to free
- */
-void fsl_mc_portal_free(struct fsl_mc_io *mc_io)
-{
-	struct fsl_mc_resource *resource;
-
-	resource = mc_io->resource;
-	if (WARN_ON(resource->type != FSL_MC_POOL_DPMCP))
-		return;
-	if (WARN_ON(!resource->data))
-		return;
-
-	fsl_destroy_mc_io(mc_io);
-	fsl_mc_resource_free(resource);
-}
-EXPORT_SYMBOL_GPL(fsl_mc_portal_free);
-
-/**
- * fsl_mc_portal_reset - Resets the dpmcp object for a given fsl_mc_io object
- *
- * @mc_io: Pointer to the fsl_mc_io object that wraps the MC portal to free
- */
-int fsl_mc_portal_reset(struct fsl_mc_io *mc_io)
-{
-	int error;
-	uint16_t token;
-	struct fsl_mc_resource *resource = mc_io->resource;
-	struct fsl_mc_device *mc_dev = resource->data;
-
-	if (WARN_ON(resource->type != FSL_MC_POOL_DPMCP))
-		return -EINVAL;
-
-	if (WARN_ON(!mc_dev))
-		return -EINVAL;
-
-	error = dpmcp_open(mc_io, mc_dev->obj_desc.id, &token);
-	if (error < 0) {
-		dev_err(&mc_dev->dev, "dpmcp_open() failed: %d\n", error);
-		return error;
-	}
-
-	error = dpmcp_reset(mc_io, token);
-	if (error < 0) {
-		dev_err(&mc_dev->dev, "dpmcp_reset() failed: %d\n", error);
-		return error;
-	}
-
-	error = dpmcp_close(mc_io, token);
-	if (error < 0) {
-		dev_err(&mc_dev->dev, "dpmcp_close() failed: %d\n", error);
-		return error;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_portal_reset);
-
-/**
- * fsl_mc_object_allocate - Allocates a MC object device of the given
- * pool type from a given MC bus
- *
- * @mc_dev: MC device for which the MC object device is to be allocated
- * @pool_type: MC bus resource pool type
- * @new_mc_dev: Pointer to area where the pointer to the allocated
- * MC object device is to be returned
- *
- * This function allocates a MC object device from the device's parent DPRC,
- * from the corresponding MC bus' pool of allocatable MC object devices of
- * the given resource type. mc_dev cannot be a DPRC itself.
- *
- * NOTE: pool_type must be different from FSL_MC_POOL_MCP, since MC
- * portals are allocated using fsl_mc_portal_allocate(), instead of
- * this function.
- */
-int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev,
-					enum fsl_mc_pool_type pool_type,
-					struct fsl_mc_device **new_mc_adev)
-{
-	struct fsl_mc_device *mc_bus_dev;
-	struct fsl_mc_bus *mc_bus;
-	struct fsl_mc_device *mc_adev;
-	int error = -EINVAL;
-	struct fsl_mc_resource *resource = NULL;
-
-	*new_mc_adev = NULL;
-	if (WARN_ON(mc_dev->flags & FSL_MC_IS_DPRC))
-		goto error;
-
-	if (WARN_ON(mc_dev->dev.parent->bus != &fsl_mc_bus_type))
-		goto error;
-
-	if (WARN_ON(pool_type == FSL_MC_POOL_DPMCP))
-		goto error;
-
-	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
-	mc_bus = to_fsl_mc_bus(mc_bus_dev);
-	error = fsl_mc_resource_allocate(mc_bus, pool_type, &resource);
-	if (error < 0)
-		goto error;
-
-	mc_adev = resource->data;
-	if (WARN_ON(!mc_adev))
-		goto error;
-
-	*new_mc_adev = mc_adev;
-	return 0;
-error:
-	if (resource)
-		fsl_mc_resource_free(resource);
-
-	return error;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_object_allocate);
-
-/**
- * fsl_mc_object_free - Returns an allocatable MC object device to the
- * corresponding resource pool of a given MC bus.
- *
- * @mc_adev: Pointer to the MC object device
- */
-void fsl_mc_object_free(struct fsl_mc_device *mc_adev)
-{
-	struct fsl_mc_resource *resource;
-
-	resource = mc_adev->resource;
-	if (WARN_ON(resource->type == FSL_MC_POOL_DPMCP))
-		return;
-	if (WARN_ON(resource->data != mc_adev))
-		return;
-
-	fsl_mc_resource_free(resource);
-}
-EXPORT_SYMBOL_GPL(fsl_mc_object_free);
-
-/**
- * fsl_mc_allocator_probe - callback invoked when an allocatable device is
- * being added to the system
- */
-static int fsl_mc_allocator_probe(struct fsl_mc_device *mc_dev)
-{
-	enum fsl_mc_pool_type pool_type;
-	struct fsl_mc_device *mc_bus_dev;
-	struct fsl_mc_bus *mc_bus;
-	int error = -EINVAL;
-
-	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
-		goto error;
-
-	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
-	if (WARN_ON(mc_bus_dev->dev.bus != &fsl_mc_bus_type))
-		goto error;
-
-	mc_bus = to_fsl_mc_bus(mc_bus_dev);
-	error = object_type_to_pool_type(mc_dev->obj_desc.type, &pool_type);
-	if (error < 0)
-		goto error;
-
-	error = fsl_mc_resource_pool_add_device(mc_bus, pool_type, mc_dev);
-	if (error < 0)
-		goto error;
-
-	dev_info(&mc_dev->dev,
-		 "Allocatable MC object device bound to fsl_mc_allocator driver");
-	return 0;
-error:
-
-	return error;
-}
-
-/**
- * fsl_mc_allocator_remove - callback invoked when an allocatable device is
- * being removed from the system
- */
-static int fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev)
-{
-	int error = -EINVAL;
-
-	if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type)))
-		goto out;
-
-	error = fsl_mc_resource_pool_remove_device(mc_dev);
-	if (error < 0)
-		goto out;
-
-	dev_info(&mc_dev->dev,
-		 "Allocatable MC object device unbound from fsl_mc_allocator driver");
-	error = 0;
-out:
-	return error;
-}
-
-static const struct fsl_mc_device_match_id match_id_table[] = {
-	{
-	 .vendor = FSL_MC_VENDOR_FREESCALE,
-	 .obj_type = "dpbp",
-	 .ver_major = DPBP_VER_MAJOR,
-	 .ver_minor = DPBP_VER_MINOR
-	},
-	{
-	 .vendor = FSL_MC_VENDOR_FREESCALE,
-	 .obj_type = "dpmcp",
-	 .ver_major = DPMCP_VER_MAJOR,
-	 .ver_minor = DPMCP_VER_MINOR
-	},
-	{
-	 .vendor = FSL_MC_VENDOR_FREESCALE,
-	 .obj_type = "dpcon",
-	 .ver_major = DPCON_VER_MAJOR,
-	 .ver_minor = DPCON_VER_MINOR
-	},
-	{.vendor = 0x0},
-};
-
-static struct fsl_mc_driver fsl_mc_allocator_driver = {
-	.driver = {
-		   .name = "fsl_mc_allocator",
-		   .owner = THIS_MODULE,
-		   .pm = NULL,
-		   },
-	.match_id_table = match_id_table,
-	.probe = fsl_mc_allocator_probe,
-	.remove = fsl_mc_allocator_remove,
-};
-
-int __init fsl_mc_allocator_driver_init(void)
-{
-	return fsl_mc_driver_register(&fsl_mc_allocator_driver);
-}
-
-void __exit fsl_mc_allocator_driver_exit(void)
-{
-	fsl_mc_driver_unregister(&fsl_mc_allocator_driver);
-}
diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c
deleted file mode 100644
index 766a65959b01..000000000000
--- a/drivers/staging/fsl-mc/bus/mc-bus.c
+++ /dev/null
@@ -1,792 +0,0 @@
-/*
- * Freescale Management Complex (MC) bus driver
- *
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
- * Author: German Rivera <German.Rivera@freescale.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include "../include/mc-private.h"
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/of_address.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/limits.h>
-#include "../include/dpmng.h"
-#include "../include/mc-sys.h"
-#include "dprc-cmd.h"
-
-static struct kmem_cache *mc_dev_cache;
-
-/**
- * fsl_mc_bus_match - device to driver matching callback
- * @dev: the MC object device structure to match against
- * @drv: the device driver to search for matching MC object device id
- * structures
- *
- * Returns 1 on success, 0 otherwise.
- */
-static int fsl_mc_bus_match(struct device *dev, struct device_driver *drv)
-{
-	const struct fsl_mc_device_match_id *id;
-	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
-	struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(drv);
-	bool found = false;
-	bool major_version_mismatch = false;
-	bool minor_version_mismatch = false;
-
-	if (WARN_ON(!fsl_mc_bus_type.dev_root))
-		goto out;
-
-	if (!mc_drv->match_id_table)
-		goto out;
-
-	/*
-	 * If the object is not 'plugged' don't match.
-	 * Only exception is the root DPRC, which is a special case.
-	 */
-	if ((mc_dev->obj_desc.state & DPRC_OBJ_STATE_PLUGGED) == 0 &&
-	    &mc_dev->dev != fsl_mc_bus_type.dev_root)
-		goto out;
-
-	/*
-	 * Traverse the match_id table of the given driver, trying to find
-	 * a matching for the given MC object device.
-	 */
-	for (id = mc_drv->match_id_table; id->vendor != 0x0; id++) {
-		if (id->vendor == mc_dev->obj_desc.vendor &&
-		    strcmp(id->obj_type, mc_dev->obj_desc.type) == 0) {
-			if (id->ver_major == mc_dev->obj_desc.ver_major) {
-				found = true;
-				if (id->ver_minor != mc_dev->obj_desc.ver_minor)
-					minor_version_mismatch = true;
-			} else {
-				major_version_mismatch = true;
-			}
-
-			break;
-		}
-	}
-
-	if (major_version_mismatch) {
-		dev_warn(dev,
-			 "Major version mismatch: driver version %u.%u, MC object version %u.%u\n",
-			 id->ver_major, id->ver_minor,
-			 mc_dev->obj_desc.ver_major,
-			 mc_dev->obj_desc.ver_minor);
-	} else if (minor_version_mismatch) {
-		dev_warn(dev,
-			 "Minor version mismatch: driver version %u.%u, MC object version %u.%u\n",
-			 id->ver_major, id->ver_minor,
-			 mc_dev->obj_desc.ver_major,
-			 mc_dev->obj_desc.ver_minor);
-	}
-
-out:
-	dev_dbg(dev, "%smatched\n", found ? "" : "not ");
-	return found;
-}
-
-/**
- * fsl_mc_bus_uevent - callback invoked when a device is added
- */
-static int fsl_mc_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
-	pr_debug("%s invoked\n", __func__);
-	return 0;
-}
-
-struct bus_type fsl_mc_bus_type = {
-	.name = "fsl-mc",
-	.match = fsl_mc_bus_match,
-	.uevent = fsl_mc_bus_uevent,
-};
-EXPORT_SYMBOL_GPL(fsl_mc_bus_type);
-
-static int fsl_mc_driver_probe(struct device *dev)
-{
-	struct fsl_mc_driver *mc_drv;
-	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
-	int error;
-
-	if (WARN_ON(!dev->driver))
-		return -EINVAL;
-
-	mc_drv = to_fsl_mc_driver(dev->driver);
-	if (WARN_ON(!mc_drv->probe))
-		return -EINVAL;
-
-	error = mc_drv->probe(mc_dev);
-	if (error < 0) {
-		dev_err(dev, "MC object device probe callback failed: %d\n",
-			error);
-		return error;
-	}
-
-	return 0;
-}
-
-static int fsl_mc_driver_remove(struct device *dev)
-{
-	struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
-	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
-	int error;
-
-	if (WARN_ON(!dev->driver))
-		return -EINVAL;
-
-	error = mc_drv->remove(mc_dev);
-	if (error < 0) {
-		dev_err(dev,
-			"MC object device remove callback failed: %d\n",
-			error);
-		return error;
-	}
-
-	return 0;
-}
-
-static void fsl_mc_driver_shutdown(struct device *dev)
-{
-	struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
-	struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
-
-	mc_drv->shutdown(mc_dev);
-}
-
-/**
- * __fsl_mc_driver_register - registers a child device driver with the
- * MC bus
- *
- * This function is implicitly invoked from the registration function of
- * fsl_mc device drivers, which is generated by the
- * module_fsl_mc_driver() macro.
- */
-int __fsl_mc_driver_register(struct fsl_mc_driver *mc_driver,
-			     struct module *owner)
-{
-	int error;
-
-	mc_driver->driver.owner = owner;
-	mc_driver->driver.bus = &fsl_mc_bus_type;
-
-	if (mc_driver->probe)
-		mc_driver->driver.probe = fsl_mc_driver_probe;
-
-	if (mc_driver->remove)
-		mc_driver->driver.remove = fsl_mc_driver_remove;
-
-	if (mc_driver->shutdown)
-		mc_driver->driver.shutdown = fsl_mc_driver_shutdown;
-
-	error = driver_register(&mc_driver->driver);
-	if (error < 0) {
-		pr_err("driver_register() failed for %s: %d\n",
-		       mc_driver->driver.name, error);
-		return error;
-	}
-
-	pr_info("MC object device driver %s registered\n",
-		mc_driver->driver.name);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(__fsl_mc_driver_register);
-
-/**
- * fsl_mc_driver_unregister - unregisters a device driver from the
- * MC bus
- */
-void fsl_mc_driver_unregister(struct fsl_mc_driver *mc_driver)
-{
-	driver_unregister(&mc_driver->driver);
-}
-EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister);
-
-static int get_dprc_icid(struct fsl_mc_io *mc_io,
-			 int container_id, uint16_t *icid)
-{
-	uint16_t dprc_handle;
-	struct dprc_attributes attr;
-	int error;
-
-	error = dprc_open(mc_io, container_id, &dprc_handle);
-	if (error < 0) {
-		pr_err("dprc_open() failed: %d\n", error);
-		return error;
-	}
-
-	memset(&attr, 0, sizeof(attr));
-	error = dprc_get_attributes(mc_io, dprc_handle, &attr);
-	if (error < 0) {
-		pr_err("dprc_get_attributes() failed: %d\n", error);
-		goto common_cleanup;
-	}
-
-	*icid = attr.icid;
-	error = 0;
-
-common_cleanup:
-	(void)dprc_close(mc_io, dprc_handle);
-	return error;
-}
-
-static int translate_mc_addr(uint64_t mc_addr, phys_addr_t *phys_addr)
-{
-	int i;
-	struct fsl_mc *mc = dev_get_drvdata(fsl_mc_bus_type.dev_root->parent);
-
-	if (mc->num_translation_ranges == 0) {
-		/*
-		 * Do identity mapping:
-		 */
-		*phys_addr = mc_addr;
-		return 0;
-	}
-
-	for (i = 0; i < mc->num_translation_ranges; i++) {
-		struct fsl_mc_addr_translation_range *range =
-			&mc->translation_ranges[i];
-
-		if (mc_addr >= range->start_mc_addr &&
-		    mc_addr < range->end_mc_addr) {
-			*phys_addr = range->start_phys_addr +
-				     (mc_addr - range->start_mc_addr);
-			return 0;
-		}
-	}
-
-	return -EFAULT;
-}
-
-static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
-					  struct fsl_mc_device *mc_bus_dev)
-{
-	int i;
-	int error;
-	struct resource *regions;
-	struct dprc_obj_desc *obj_desc = &mc_dev->obj_desc;
-	struct device *parent_dev = mc_dev->dev.parent;
-
-	regions = kmalloc_array(obj_desc->region_count,
-				sizeof(regions[0]), GFP_KERNEL);
-	if (!regions)
-		return -ENOMEM;
-
-	for (i = 0; i < obj_desc->region_count; i++) {
-		struct dprc_region_desc region_desc;
-
-		error = dprc_get_obj_region(mc_bus_dev->mc_io,
-					    mc_bus_dev->mc_handle,
-					    obj_desc->type,
-					    obj_desc->id, i, &region_desc);
-		if (error < 0) {
-			dev_err(parent_dev,
-				"dprc_get_obj_region() failed: %d\n", error);
-			goto error_cleanup_regions;
-		}
-
-		WARN_ON(region_desc.base_paddr == 0x0);
-		WARN_ON(region_desc.size == 0);
-		error = translate_mc_addr(region_desc.base_paddr,
-					  &regions[i].start);
-		if (error < 0) {
-			dev_err(parent_dev,
-				"Invalid MC address: %#llx\n",
-				region_desc.base_paddr);
-			goto error_cleanup_regions;
-		}
-
-		regions[i].end = regions[i].start + region_desc.size - 1;
-		regions[i].name = "fsl-mc object MMIO region";
-		regions[i].flags = IORESOURCE_IO;
-	}
-
-	mc_dev->regions = regions;
-	return 0;
-
-error_cleanup_regions:
-	kfree(regions);
-	return error;
-}
-
-/**
- * Add a newly discovered MC object device to be visible in Linux
- */
-int fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
-		      struct fsl_mc_io *mc_io,
-		      struct device *parent_dev,
-		      struct fsl_mc_device **new_mc_dev)
-{
-	int error;
-	struct fsl_mc_device *mc_dev = NULL;
-	struct fsl_mc_bus *mc_bus = NULL;
-	struct fsl_mc_device *parent_mc_dev;
-
-	if (parent_dev->bus == &fsl_mc_bus_type)
-		parent_mc_dev = to_fsl_mc_device(parent_dev);
-	else
-		parent_mc_dev = NULL;
-
-	if (strcmp(obj_desc->type, "dprc") == 0) {
-		/*
-		 * Allocate an MC bus device object:
-		 */
-		mc_bus = devm_kzalloc(parent_dev, sizeof(*mc_bus), GFP_KERNEL);
-		if (!mc_bus)
-			return -ENOMEM;
-
-		mc_dev = &mc_bus->mc_dev;
-	} else {
-		/*
-		 * Allocate a regular fsl_mc_device object:
-		 */
-		mc_dev = kmem_cache_zalloc(mc_dev_cache, GFP_KERNEL);
-		if (!mc_dev)
-			return -ENOMEM;
-	}
-
-	mc_dev->obj_desc = *obj_desc;
-	mc_dev->mc_io = mc_io;
-	device_initialize(&mc_dev->dev);
-	mc_dev->dev.parent = parent_dev;
-	mc_dev->dev.bus = &fsl_mc_bus_type;
-	dev_set_name(&mc_dev->dev, "%s.%d", obj_desc->type, obj_desc->id);
-
-	if (strcmp(obj_desc->type, "dprc") == 0) {
-		struct fsl_mc_io *mc_io2;
-
-		mc_dev->flags |= FSL_MC_IS_DPRC;
-
-		/*
-		 * To get the DPRC's ICID, we need to open the DPRC
-		 * in get_dprc_icid(). For child DPRCs, we do so using the
-		 * parent DPRC's MC portal instead of the child DPRC's MC
-		 * portal, in case the child DPRC is already opened with
-		 * its own portal (e.g., the DPRC used by AIOP).
-		 *
-		 * NOTE: There cannot be more than one active open for a
-		 * given MC object, using the same MC portal.
-		 */
-		if (parent_mc_dev) {
-			/*
-			 * device being added is a child DPRC device
-			 */
-			mc_io2 = parent_mc_dev->mc_io;
-		} else {
-			/*
-			 * device being added is the root DPRC device
-			 */
-			if (WARN_ON(!mc_io)) {
-				error = -EINVAL;
-				goto error_cleanup_dev;
-			}
-
-			mc_io2 = mc_io;
-
-			if (!fsl_mc_bus_type.dev_root)
-				fsl_mc_bus_type.dev_root = &mc_dev->dev;
-		}
-
-		error = get_dprc_icid(mc_io2, obj_desc->id, &mc_dev->icid);
-		if (error < 0)
-			goto error_cleanup_dev;
-	} else {
-		/*
-		 * A non-DPRC MC object device has to be a child of another
-		 * MC object (specifically a DPRC object)
-		 */
-		mc_dev->icid = parent_mc_dev->icid;
-		mc_dev->dma_mask = FSL_MC_DEFAULT_DMA_MASK;
-		mc_dev->dev.dma_mask = &mc_dev->dma_mask;
-	}
-
-	/*
-	 * Get MMIO regions for the device from the MC:
-	 *
-	 * NOTE: the root DPRC is a special case as its MMIO region is
-	 * obtained from the device tree
-	 */
-	if (parent_mc_dev && obj_desc->region_count != 0) {
-		error = fsl_mc_device_get_mmio_regions(mc_dev,
-						       parent_mc_dev);
-		if (error < 0)
-			goto error_cleanup_dev;
-	}
-
-	/*
-	 * The device-specific probe callback will get invoked by device_add()
-	 */
-	error = device_add(&mc_dev->dev);
-	if (error < 0) {
-		dev_err(parent_dev,
-			"device_add() failed for device %s: %d\n",
-			dev_name(&mc_dev->dev), error);
-		goto error_cleanup_dev;
-	}
-
-	(void)get_device(&mc_dev->dev);
-	dev_dbg(parent_dev, "Added MC object device %s\n",
-		dev_name(&mc_dev->dev));
-
-	*new_mc_dev = mc_dev;
-	return 0;
-
-error_cleanup_dev:
-	kfree(mc_dev->regions);
-	if (mc_bus)
-		devm_kfree(parent_dev, mc_bus);
-	else
-		kmem_cache_free(mc_dev_cache, mc_dev);
-
-	return error;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_device_add);
-
-/**
- * fsl_mc_device_remove - Remove a MC object device from being visible to
- * Linux
- *
- * @mc_dev: Pointer to a MC object device object
- */
-void fsl_mc_device_remove(struct fsl_mc_device *mc_dev)
-{
-	struct fsl_mc_bus *mc_bus = NULL;
-
-	kfree(mc_dev->regions);
-
-	/*
-	 * The device-specific remove callback will get invoked by device_del()
-	 */
-	device_del(&mc_dev->dev);
-	put_device(&mc_dev->dev);
-
-	if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) {
-		mc_bus = to_fsl_mc_bus(mc_dev);
-		if (mc_dev->mc_io) {
-			fsl_destroy_mc_io(mc_dev->mc_io);
-			mc_dev->mc_io = NULL;
-		}
-
-		if (&mc_dev->dev == fsl_mc_bus_type.dev_root)
-			fsl_mc_bus_type.dev_root = NULL;
-	}
-
-	if (mc_bus)
-		devm_kfree(mc_dev->dev.parent, mc_bus);
-	else
-		kmem_cache_free(mc_dev_cache, mc_dev);
-}
-EXPORT_SYMBOL_GPL(fsl_mc_device_remove);
-
-static int parse_mc_ranges(struct device *dev,
-			   int *paddr_cells,
-			   int *mc_addr_cells,
-			   int *mc_size_cells,
-			   const __be32 **ranges_start,
-			   uint8_t *num_ranges)
-{
-	const __be32 *prop;
-	int range_tuple_cell_count;
-	int ranges_len;
-	int tuple_len;
-	struct device_node *mc_node = dev->of_node;
-
-	*ranges_start = of_get_property(mc_node, "ranges", &ranges_len);
-	if (!(*ranges_start) || !ranges_len) {
-		dev_warn(dev,
-			 "missing or empty ranges property for device tree node '%s'\n",
-			 mc_node->name);
-
-		*num_ranges = 0;
-		return 0;
-	}
-
-	*paddr_cells = of_n_addr_cells(mc_node);
-
-	prop = of_get_property(mc_node, "#address-cells", NULL);
-	if (prop)
-		*mc_addr_cells = be32_to_cpup(prop);
-	else
-		*mc_addr_cells = *paddr_cells;
-
-	prop = of_get_property(mc_node, "#size-cells", NULL);
-	if (prop)
-		*mc_size_cells = be32_to_cpup(prop);
-	else
-		*mc_size_cells = of_n_size_cells(mc_node);
-
-	range_tuple_cell_count = *paddr_cells + *mc_addr_cells +
-				 *mc_size_cells;
-
-	tuple_len = range_tuple_cell_count * sizeof(__be32);
-	if (ranges_len % tuple_len != 0) {
-		dev_err(dev, "malformed ranges property '%s'\n", mc_node->name);
-		return -EINVAL;
-	}
-
-	*num_ranges = ranges_len / tuple_len;
-	return 0;
-}
-
-static int get_mc_addr_translation_ranges(struct device *dev,
-					  struct fsl_mc_addr_translation_range
-						**ranges,
-					  uint8_t *num_ranges)
-{
-	int error;
-	int paddr_cells;
-	int mc_addr_cells;
-	int mc_size_cells;
-	int i;
-	const __be32 *ranges_start;
-	const __be32 *cell;
-
-	error = parse_mc_ranges(dev,
-				&paddr_cells,
-				&mc_addr_cells,
-				&mc_size_cells,
-				&ranges_start,
-				num_ranges);
-	if (error < 0)
-		return error;
-
-	if (!(*num_ranges)) {
-		/*
-		 * Missing or empty ranges property ("ranges;") for the
-		 * 'fsl,qoriq-mc' node. In this case, identity mapping
-		 * will be used.
-		 */
-		*ranges = NULL;
-		return 0;
-	}
-
-	*ranges = devm_kcalloc(dev, *num_ranges,
-			       sizeof(struct fsl_mc_addr_translation_range),
-			       GFP_KERNEL);
-	if (!(*ranges))
-		return -ENOMEM;
-
-	cell = ranges_start;
-	for (i = 0; i < *num_ranges; ++i) {
-		struct fsl_mc_addr_translation_range *range = &(*ranges)[i];
-
-		range->start_mc_addr = of_read_number(cell, mc_addr_cells);
-		cell += mc_addr_cells;
-		range->start_phys_addr = of_read_number(cell, paddr_cells);
-		cell += paddr_cells;
-		range->end_mc_addr = range->start_mc_addr +
-				     of_read_number(cell, mc_size_cells);
-
-		cell += mc_size_cells;
-	}
-
-	return 0;
-}
-
-/**
- * fsl_mc_bus_probe - callback invoked when the root MC bus is being
- * added
- */
-static int fsl_mc_bus_probe(struct platform_device *pdev)
-{
-	struct dprc_obj_desc obj_desc;
-	int error;
-	struct fsl_mc *mc;
-	struct fsl_mc_device *mc_bus_dev = NULL;
-	struct fsl_mc_io *mc_io = NULL;
-	int container_id;
-	phys_addr_t mc_portal_phys_addr;
-	uint32_t mc_portal_size;
-	struct mc_version mc_version;
-	struct resource res;
-
-	dev_info(&pdev->dev, "Root MC bus device probed");
-
-	mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);
-	if (!mc)
-		return -ENOMEM;
-
-	platform_set_drvdata(pdev, mc);
-
-	/*
-	 * Get physical address of MC portal for the root DPRC:
-	 */
-	error = of_address_to_resource(pdev->dev.of_node, 0, &res);
-	if (error < 0) {
-		dev_err(&pdev->dev,
-			"of_address_to_resource() failed for %s\n",
-			pdev->dev.of_node->full_name);
-		return error;
-	}
-
-	mc_portal_phys_addr = res.start;
-	mc_portal_size = resource_size(&res);
-	error = fsl_create_mc_io(&pdev->dev, mc_portal_phys_addr,
-				 mc_portal_size, NULL, 0, &mc_io);
-	if (error < 0)
-		return error;
-
-	error = mc_get_version(mc_io, &mc_version);
-	if (error != 0) {
-		dev_err(&pdev->dev,
-			"mc_get_version() failed with error %d\n", error);
-		goto error_cleanup_mc_io;
-	}
-
-	dev_info(&pdev->dev,
-		 "Freescale Management Complex Firmware version: %u.%u.%u\n",
-		 mc_version.major, mc_version.minor, mc_version.revision);
-
-	if (mc_version.major < MC_VER_MAJOR) {
-		dev_err(&pdev->dev,
-			"ERROR: MC firmware version not supported by driver (driver version: %u.%u)\n",
-			MC_VER_MAJOR, MC_VER_MINOR);
-		error = -ENOTSUPP;
-		goto error_cleanup_mc_io;
-	}
-
-	if (mc_version.major > MC_VER_MAJOR) {
-		dev_warn(&pdev->dev,
-			 "WARNING: driver may not support newer MC firmware features (driver version: %u.%u)\n",
-			 MC_VER_MAJOR, MC_VER_MINOR);
-	}
-
-	error = get_mc_addr_translation_ranges(&pdev->dev,
-					       &mc->translation_ranges,
-					       &mc->num_translation_ranges);
-	if (error < 0)
-		goto error_cleanup_mc_io;
-
-	error = dpmng_get_container_id(mc_io, &container_id);
-	if (error < 0) {
-		dev_err(&pdev->dev,
-			"dpmng_get_container_id() failed: %d\n", error);
-		goto error_cleanup_mc_io;
-	}
-
-	obj_desc.vendor = FSL_MC_VENDOR_FREESCALE;
-	strcpy(obj_desc.type, "dprc");
-	obj_desc.id = container_id;
-	obj_desc.ver_major = DPRC_VER_MAJOR;
-	obj_desc.ver_minor = DPRC_VER_MINOR;
-	obj_desc.region_count = 0;
-
-	error = fsl_mc_device_add(&obj_desc, mc_io, &pdev->dev, &mc_bus_dev);
-	if (error < 0)
-		goto error_cleanup_mc_io;
-
-	mc->root_mc_bus_dev = mc_bus_dev;
-	return 0;
-
-error_cleanup_mc_io:
-	fsl_destroy_mc_io(mc_io);
-	return error;
-}
-
-/**
- * fsl_mc_bus_remove - callback invoked when the root MC bus is being
- * removed
- */
-static int fsl_mc_bus_remove(struct platform_device *pdev)
-{
-	struct fsl_mc *mc = platform_get_drvdata(pdev);
-
-	if (WARN_ON(&mc->root_mc_bus_dev->dev != fsl_mc_bus_type.dev_root))
-		return -EINVAL;
-
-	fsl_mc_device_remove(mc->root_mc_bus_dev);
-	dev_info(&pdev->dev, "Root MC bus device removed");
-	return 0;
-}
-
-static const struct of_device_id fsl_mc_bus_match_table[] = {
-	{.compatible = "fsl,qoriq-mc",},
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, fsl_mc_bus_match_table);
-
-static struct platform_driver fsl_mc_bus_driver = {
-	.driver = {
-		   .name = "fsl_mc_bus",
-		   .pm = NULL,
-		   .of_match_table = fsl_mc_bus_match_table,
-		   },
-	.probe = fsl_mc_bus_probe,
-	.remove = fsl_mc_bus_remove,
-};
-
-static int __init fsl_mc_bus_driver_init(void)
-{
-	int error;
-
-	mc_dev_cache = kmem_cache_create("fsl_mc_device",
-					 sizeof(struct fsl_mc_device), 0, 0,
-					 NULL);
-	if (!mc_dev_cache) {
-		pr_err("Could not create fsl_mc_device cache\n");
-		return -ENOMEM;
-	}
-
-	error = bus_register(&fsl_mc_bus_type);
-	if (error < 0) {
-		pr_err("fsl-mc bus type registration failed: %d\n", error);
-		goto error_cleanup_cache;
-	}
-
-	pr_info("fsl-mc bus type registered\n");
-
-	error = platform_driver_register(&fsl_mc_bus_driver);
-	if (error < 0) {
-		pr_err("platform_driver_register() failed: %d\n", error);
-		goto error_cleanup_bus;
-	}
-
-	error = dprc_driver_init();
-	if (error < 0)
-		goto error_cleanup_driver;
-
-	error = fsl_mc_allocator_driver_init();
-	if (error < 0)
-		goto error_cleanup_dprc_driver;
-
-	return 0;
-
-error_cleanup_dprc_driver:
-	dprc_driver_exit();
-
-error_cleanup_driver:
-	platform_driver_unregister(&fsl_mc_bus_driver);
-
-error_cleanup_bus:
-	bus_unregister(&fsl_mc_bus_type);
-
-error_cleanup_cache:
-	kmem_cache_destroy(mc_dev_cache);
-	return error;
-}
-
-postcore_initcall(fsl_mc_bus_driver_init);
-
-static void __exit fsl_mc_bus_driver_exit(void)
-{
-	if (WARN_ON(!mc_dev_cache))
-		return;
-
-	fsl_mc_allocator_driver_exit();
-	dprc_driver_exit();
-	platform_driver_unregister(&fsl_mc_bus_driver);
-	bus_unregister(&fsl_mc_bus_type);
-	kmem_cache_destroy(mc_dev_cache);
-	pr_info("MC bus unregistered\n");
-}
-
-module_exit(fsl_mc_bus_driver_exit);
-
-MODULE_AUTHOR("Freescale Semiconductor Inc.");
-MODULE_DESCRIPTION("Freescale Management Complex (MC) bus driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/fsl-mc/bus/mc-sys.c b/drivers/staging/fsl-mc/bus/mc-sys.c
deleted file mode 100644
index 5737f599f0ef..000000000000
--- a/drivers/staging/fsl-mc/bus/mc-sys.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
- *
- * I/O services to send MC commands to the MC hardware
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of the above-listed copyright holders nor the
- *       names of any contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "../include/mc-sys.h"
-#include "../include/mc-cmd.h"
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
-
-/**
- * Timeout in jiffies to wait for the completion of an MC command
- */
-#define MC_CMD_COMPLETION_TIMEOUT_JIFFIES   (HZ / 2)	/* 500 ms */
-
-/*
- * usleep_range() min and max values used to throttle down polling
- * iterations while waiting for MC command completion
- */
-#define MC_CMD_COMPLETION_POLLING_MIN_SLEEP_USECS    10
-#define MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS    500
-
-#define MC_CMD_HDR_READ_CMDID(_hdr) \
-	((uint16_t)mc_dec((_hdr), MC_CMD_HDR_CMDID_O, MC_CMD_HDR_CMDID_S))
-
-/**
- * Creates an MC I/O object
- *
- * @dev: device to be associated with the MC I/O object
- * @mc_portal_phys_addr: physical address of the MC portal to use
- * @mc_portal_size: size in bytes of the MC portal
- * @resource: Pointer to MC bus object allocator resource associated
- * with this MC I/O object or NULL if none.
- * @flags: flags for the new MC I/O object
- * @new_mc_io: Area to return pointer to newly created MC I/O object
- *
- * Returns '0' on Success; Error code otherwise.
- */
-int __must_check fsl_create_mc_io(struct device *dev,
-				  phys_addr_t mc_portal_phys_addr,
-				  uint32_t mc_portal_size,
-				  struct fsl_mc_resource *resource,
-				  uint32_t flags, struct fsl_mc_io **new_mc_io)
-{
-	struct fsl_mc_io *mc_io;
-	void __iomem *mc_portal_virt_addr;
-	struct resource *res;
-
-	mc_io = devm_kzalloc(dev, sizeof(*mc_io), GFP_KERNEL);
-	if (!mc_io)
-		return -ENOMEM;
-
-	mc_io->dev = dev;
-	mc_io->flags = flags;
-	mc_io->portal_phys_addr = mc_portal_phys_addr;
-	mc_io->portal_size = mc_portal_size;
-	mc_io->resource = resource;
-	res = devm_request_mem_region(dev,
-				      mc_portal_phys_addr,
-				      mc_portal_size,
-				      "mc_portal");
-	if (!res) {
-		dev_err(dev,
-			"devm_request_mem_region failed for MC portal %#llx\n",
-			mc_portal_phys_addr);
-		return -EBUSY;
-	}
-
-	mc_portal_virt_addr = devm_ioremap_nocache(dev,
-						   mc_portal_phys_addr,
-						   mc_portal_size);
-	if (!mc_portal_virt_addr) {
-		dev_err(dev,
-			"devm_ioremap_nocache failed for MC portal %#llx\n",
-			mc_portal_phys_addr);
-		return -ENXIO;
-	}
-
-	mc_io->portal_virt_addr = mc_portal_virt_addr;
-	*new_mc_io = mc_io;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(fsl_create_mc_io);
-
-/**
- * Destroys an MC I/O object
- *
- * @mc_io: MC I/O object to destroy
- */
-void fsl_destroy_mc_io(struct fsl_mc_io *mc_io)
-{
-	devm_iounmap(mc_io->dev, mc_io->portal_virt_addr);
-	devm_release_mem_region(mc_io->dev,
-				mc_io->portal_phys_addr,
-				mc_io->portal_size);
-
-	mc_io->portal_virt_addr = NULL;
-	devm_kfree(mc_io->dev, mc_io);
-}
-EXPORT_SYMBOL_GPL(fsl_destroy_mc_io);
-
-static int mc_status_to_error(enum mc_cmd_status status)
-{
-	static const int mc_status_to_error_map[] = {
-		[MC_CMD_STATUS_OK] = 0,
-		[MC_CMD_STATUS_AUTH_ERR] = -EACCES,
-		[MC_CMD_STATUS_NO_PRIVILEGE] = -EPERM,
-		[MC_CMD_STATUS_DMA_ERR] = -EIO,
-		[MC_CMD_STATUS_CONFIG_ERR] = -ENXIO,
-		[MC_CMD_STATUS_TIMEOUT] = -ETIMEDOUT,
-		[MC_CMD_STATUS_NO_RESOURCE] = -ENAVAIL,
-		[MC_CMD_STATUS_NO_MEMORY] = -ENOMEM,
-		[MC_CMD_STATUS_BUSY] = -EBUSY,
-		[MC_CMD_STATUS_UNSUPPORTED_OP] = -ENOTSUPP,
-		[MC_CMD_STATUS_INVALID_STATE] = -ENODEV,
-	};
-
-	if (WARN_ON((u32)status >= ARRAY_SIZE(mc_status_to_error_map)))
-		return -EINVAL;
-
-	return mc_status_to_error_map[status];
-}
-
-static const char *mc_status_to_string(enum mc_cmd_status status)
-{
-	static const char *const status_strings[] = {
-		[MC_CMD_STATUS_OK] = "Command completed successfully",
-		[MC_CMD_STATUS_READY] = "Command ready to be processed",
-		[MC_CMD_STATUS_AUTH_ERR] = "Authentication error",
-		[MC_CMD_STATUS_NO_PRIVILEGE] = "No privilege",
-		[MC_CMD_STATUS_DMA_ERR] = "DMA or I/O error",
-		[MC_CMD_STATUS_CONFIG_ERR] = "Configuration error",
-		[MC_CMD_STATUS_TIMEOUT] = "Operation timed out",
-		[MC_CMD_STATUS_NO_RESOURCE] = "No resources",
-		[MC_CMD_STATUS_NO_MEMORY] = "No memory available",
-		[MC_CMD_STATUS_BUSY] = "Device is busy",
-		[MC_CMD_STATUS_UNSUPPORTED_OP] = "Unsupported operation",
-		[MC_CMD_STATUS_INVALID_STATE] = "Invalid state"
-	};
-
-	if ((unsigned int)status >= ARRAY_SIZE(status_strings))
-		return "Unknown MC error";
-
-	return status_strings[status];
-}
-
-/**
- * mc_write_command - writes a command to a Management Complex (MC) portal
- *
- * @portal: pointer to an MC portal
- * @cmd: pointer to a filled command
- */
-static inline void mc_write_command(struct mc_command __iomem *portal,
-				    struct mc_command *cmd)
-{
-	int i;
-
-	/* copy command parameters into the portal */
-	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
-		writeq(cmd->params[i], &portal->params[i]);
-
-	/* submit the command by writing the header */
-	writeq(cmd->header, &portal->header);
-}
-
-/**
- * mc_read_response - reads the response for the last MC command from a
- * Management Complex (MC) portal
- *
- * @portal: pointer to an MC portal
- * @resp: pointer to command response buffer
- *
- * Returns MC_CMD_STATUS_OK on Success; Error code otherwise.
- */
-static inline enum mc_cmd_status mc_read_response(struct mc_command __iomem *
-						  portal,
-						  struct mc_command *resp)
-{
-	int i;
-	enum mc_cmd_status status;
-
-	/* Copy command response header from MC portal: */
-	resp->header = readq(&portal->header);
-	status = MC_CMD_HDR_READ_STATUS(resp->header);
-	if (status != MC_CMD_STATUS_OK)
-		return status;
-
-	/* Copy command response data from MC portal: */
-	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)
-		resp->params[i] = readq(&portal->params[i]);
-
-	return status;
-}
-
-/**
- * Sends an command to the MC device using the given MC I/O object
- *
- * @mc_io: MC I/O object to be used
- * @cmd: command to be sent
- *
- * Returns '0' on Success; Error code otherwise.
- *
- * NOTE: This function cannot be invoked from from atomic contexts.
- */
-int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd)
-{
-	enum mc_cmd_status status;
-	unsigned long jiffies_until_timeout =
-	    jiffies + MC_CMD_COMPLETION_TIMEOUT_JIFFIES;
-
-	/*
-	 * Send command to the MC hardware:
-	 */
-	mc_write_command(mc_io->portal_virt_addr, cmd);
-
-	/*
-	 * Wait for response from the MC hardware:
-	 */
-	for (;;) {
-		status = mc_read_response(mc_io->portal_virt_addr, cmd);
-		if (status != MC_CMD_STATUS_READY)
-			break;
-
-		/*
-		 * TODO: When MC command completion interrupts are supported
-		 * call wait function here instead of usleep_range()
-		 */
-		usleep_range(MC_CMD_COMPLETION_POLLING_MIN_SLEEP_USECS,
-			     MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS);
-
-		if (time_after_eq(jiffies, jiffies_until_timeout)) {
-			pr_debug("MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
-				 mc_io->portal_phys_addr,
-				 (unsigned int)
-					MC_CMD_HDR_READ_TOKEN(cmd->header),
-				 (unsigned int)
-					MC_CMD_HDR_READ_CMDID(cmd->header));
-
-			return -ETIMEDOUT;
-		}
-	}
-
-	if (status != MC_CMD_STATUS_OK) {
-		pr_debug("MC command failed: portal: %#llx, obj handle: %#x, command: %#x, status: %s (%#x)\n",
-			 mc_io->portal_phys_addr,
-			 (unsigned int)MC_CMD_HDR_READ_TOKEN(cmd->header),
-			 (unsigned int)MC_CMD_HDR_READ_CMDID(cmd->header),
-			 mc_status_to_string(status),
-			 (unsigned int)status);
-
-		return mc_status_to_error(status);
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(mc_send_command);
diff --git a/drivers/staging/fsl-mc/include/dpbp-cmd.h b/drivers/staging/fsl-mc/include/dpbp-cmd.h
deleted file mode 100644
index 1fd70a215194..000000000000
--- a/drivers/staging/fsl-mc/include/dpbp-cmd.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in the
-* documentation and/or other materials provided with the distribution.
-* * Neither the name of the above-listed copyright holders nor the
-* names of any contributors may be used to endorse or promote products
-* derived from this software without specific prior written permission.
-*
-*
-* ALTERNATIVELY, this software may be distributed under the terms of the
-* GNU General Public License ("GPL") as published by the Free Software
-* Foundation, either version 2 of that License or (at your option) any
-* later version.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
-* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-*/
-#ifndef _FSL_DPBP_CMD_H
-#define _FSL_DPBP_CMD_H
-
-/* DPBP Version */
-#define DPBP_VER_MAJOR				2
-#define DPBP_VER_MINOR				0
-
-/* Command IDs */
-#define DPBP_CMDID_CLOSE				0x800
-#define DPBP_CMDID_OPEN					0x804
-#define DPBP_CMDID_CREATE				0x904
-#define DPBP_CMDID_DESTROY				0x900
-
-#define DPBP_CMDID_ENABLE				0x002
-#define DPBP_CMDID_DISABLE				0x003
-#define DPBP_CMDID_GET_ATTR				0x004
-#define DPBP_CMDID_RESET				0x005
-#define DPBP_CMDID_IS_ENABLED				0x006
-
-#define DPBP_CMDID_SET_IRQ				0x010
-#define DPBP_CMDID_GET_IRQ				0x011
-#define DPBP_CMDID_SET_IRQ_ENABLE			0x012
-#define DPBP_CMDID_GET_IRQ_ENABLE			0x013
-#define DPBP_CMDID_SET_IRQ_MASK				0x014
-#define DPBP_CMDID_GET_IRQ_MASK				0x015
-#define DPBP_CMDID_GET_IRQ_STATUS			0x016
-#define DPBP_CMDID_CLEAR_IRQ_STATUS			0x017
-
-#endif /* _FSL_DPBP_CMD_H */
diff --git a/drivers/staging/fsl-mc/include/dpbp.h b/drivers/staging/fsl-mc/include/dpbp.h
deleted file mode 100644
index 5f3c8e74d2ad..000000000000
--- a/drivers/staging/fsl-mc/include/dpbp.h
+++ /dev/null
@@ -1,330 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef __FSL_DPBP_H
-#define __FSL_DPBP_H
-
-/* Data Path Buffer Pool API
- * Contains initialization APIs and runtime control APIs for DPBP
- */
-
-struct fsl_mc_io;
-
-/**
- * dpbp_open() - Open a control session for the specified object.
- * @mc_io:	Pointer to MC portal's I/O object
- * @dpbp_id:	DPBP unique ID
- * @token:	Returned token; use in subsequent API calls
- *
- * This function can be used to open a control session for an
- * already created object; an object may have been declared in
- * the DPL or by calling the dpbp_create function.
- * This function returns a unique authentication token,
- * associated with the specific object ID and the specific MC
- * portal; this token must be used in all subsequent commands for
- * this specific object
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_open(struct fsl_mc_io *mc_io, int dpbp_id, uint16_t *token);
-
-/**
- * dpbp_close() - Close the control session of the object
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- *
- * After this function is called, no further operations are
- * allowed on the object without opening a new control session.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_close(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * struct dpbp_cfg() - Structure representing DPBP configuration
- * @options:	place holder
- */
-struct dpbp_cfg {
-	uint32_t options;
-};
-
-/**
- * dpbp_create() - Create the DPBP object.
- * @mc_io:	Pointer to MC portal's I/O object
- * @cfg:	Configuration structure
- * @token:	Returned token; use in subsequent API calls
- *
- * Create the DPBP object, allocate required resources and
- * perform required initialization.
- *
- * The object can be created either by declaring it in the
- * DPL file, or by calling this function.
- * This function returns a unique authentication token,
- * associated with the specific object ID and the specific MC
- * portal; this token must be used in all subsequent calls to
- * this specific object. For objects that are created using the
- * DPL file, call dpbp_open function to get an authentication
- * token first.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_create(struct fsl_mc_io	*mc_io,
-		const struct dpbp_cfg	*cfg,
-		uint16_t		*token);
-
-/**
- * dpbp_destroy() - Destroy the DPBP object and release all its resources.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- *
- * Return:	'0' on Success; error code otherwise.
- */
-int dpbp_destroy(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * dpbp_enable() - Enable the DPBP.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_enable(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * dpbp_disable() - Disable the DPBP.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_disable(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * dpbp_is_enabled() - Check if the DPBP is enabled.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @en:		Returns '1' if object is enabled; '0' otherwise
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_is_enabled(struct fsl_mc_io *mc_io, uint16_t token, int *en);
-
-/**
- * dpbp_reset() - Reset the DPBP, returns the object to initial state.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_reset(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * dpbp_set_irq() - Set IRQ information for the DPBP to trigger an interrupt.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	Identifies the interrupt index to configure
- * @irq_addr:	Address that must be written to
- *				signal a message-based interrupt
- * @irq_val:	Value to write into irq_addr address
- * @user_irq_id: A user defined number associated with this IRQ
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_set_irq(struct fsl_mc_io	*mc_io,
-		 uint16_t		token,
-		 uint8_t		irq_index,
-		 uint64_t		irq_addr,
-		 uint32_t		irq_val,
-		 int			user_irq_id);
-
-/**
- * dpbp_get_irq() - Get IRQ information from the DPBP.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	The interrupt index to configure
- * @type:	Interrupt type: 0 represents message interrupt
- *				type (both irq_addr and irq_val are valid)
- * @irq_addr:	Returned address that must be written to
- *				signal the message-based interrupt
- * @irq_val:	Value to write into irq_addr address
- * @user_irq_id: A user defined number associated with this IRQ
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_get_irq(struct fsl_mc_io	*mc_io,
-		 uint16_t		token,
-		 uint8_t		irq_index,
-		 int			*type,
-		 uint64_t		*irq_addr,
-		 uint32_t		*irq_val,
-		 int			*user_irq_id);
-
-/**
- * dpbp_set_irq_enable() - Set overall interrupt state.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	The interrupt index to configure
- * @en:	Interrupt state - enable = 1, disable = 0
- *
- * Allows GPP software to control when interrupts are generated.
- * Each interrupt can have up to 32 causes.  The enable/disable control's the
- * overall interrupt state. if the interrupt is disabled no causes will cause
- * an interrupt.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_set_irq_enable(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			uint8_t			irq_index,
-			uint8_t			en);
-
-/**
- * dpbp_get_irq_enable() - Get overall interrupt state
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	The interrupt index to configure
- * @en:		Returned interrupt state - enable = 1, disable = 0
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_get_irq_enable(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			uint8_t			irq_index,
-			uint8_t			*en);
-
-/**
- * dpbp_set_irq_mask() - Set interrupt mask.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	The interrupt index to configure
- * @mask:	Event mask to trigger interrupt;
- *			each bit:
- *				0 = ignore event
- *				1 = consider event for asserting IRQ
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_set_irq_mask(struct fsl_mc_io	*mc_io,
-		      uint16_t		token,
-		      uint8_t		irq_index,
-		      uint32_t		mask);
-
-/**
- * dpbp_get_irq_mask() - Get interrupt mask.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	The interrupt index to configure
- * @mask:	Returned event mask to trigger interrupt
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_get_irq_mask(struct fsl_mc_io	*mc_io,
-		      uint16_t		token,
-		      uint8_t		irq_index,
-		      uint32_t		*mask);
-
-/**
- * dpbp_get_irq_status() - Get the current status of any pending interrupts.
- *
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	The interrupt index to configure
- * @status:	Returned interrupts status - one bit per cause:
- *			0 = no interrupt pending
- *			1 = interrupt pending
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_get_irq_status(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			uint8_t			irq_index,
-			uint32_t		*status);
-
-/**
- * dpbp_clear_irq_status() - Clear a pending interrupt's status
- *
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @irq_index:	The interrupt index to configure
- * @status:	Bits to clear (W1C) - one bit per cause:
- *					0 = don't change
- *					1 = clear status bit
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_clear_irq_status(struct fsl_mc_io	*mc_io,
-			  uint16_t		token,
-			  uint8_t		irq_index,
-			  uint32_t		status);
-
-/**
- * struct dpbp_attr - Structure representing DPBP attributes
- * @id:		DPBP object ID
- * @version:	DPBP version
- * @bpid:	Hardware buffer pool ID; should be used as an argument in
- *		acquire/release operations on buffers
- */
-struct dpbp_attr {
-	int id;
-	/**
-	 * struct version - Structure representing DPBP version
-	 * @major:	DPBP major version
-	 * @minor:	DPBP minor version
-	 */
-	struct {
-		uint16_t major;
-		uint16_t minor;
-	} version;
-	uint16_t bpid;
-};
-
-/**
- * dpbp_get_attributes - Retrieve DPBP attributes.
- *
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPBP object
- * @attr:	Returned object's attributes
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpbp_get_attributes(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			struct dpbp_attr	*attr);
-
-/** @} */
-
-#endif /* __FSL_DPBP_H */
diff --git a/drivers/staging/fsl-mc/include/dpcon-cmd.h b/drivers/staging/fsl-mc/include/dpcon-cmd.h
deleted file mode 100644
index c878d33bfd86..000000000000
--- a/drivers/staging/fsl-mc/include/dpcon-cmd.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in the
-* documentation and/or other materials provided with the distribution.
-* * Neither the name of the above-listed copyright holders nor the
-* names of any contributors may be used to endorse or promote products
-* derived from this software without specific prior written permission.
-*
-*
-* ALTERNATIVELY, this software may be distributed under the terms of the
-* GNU General Public License ("GPL") as published by the Free Software
-* Foundation, either version 2 of that License or (at your option) any
-* later version.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
-* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-*/
-#ifndef _FSL_DPCON_CMD_H
-#define _FSL_DPCON_CMD_H
-
-/* DPCON Version */
-#define DPCON_VER_MAJOR				2
-#define DPCON_VER_MINOR				0
-
-/* Command IDs */
-#define DPCON_CMDID_CLOSE				0x800
-#define DPCON_CMDID_OPEN				0x808
-#define DPCON_CMDID_CREATE				0x908
-#define DPCON_CMDID_DESTROY				0x900
-
-#define DPCON_CMDID_ENABLE				0x002
-#define DPCON_CMDID_DISABLE				0x003
-#define DPCON_CMDID_GET_ATTR				0x004
-#define DPCON_CMDID_RESET				0x005
-#define DPCON_CMDID_IS_ENABLED				0x006
-
-#define DPCON_CMDID_SET_IRQ				0x010
-#define DPCON_CMDID_GET_IRQ				0x011
-#define DPCON_CMDID_SET_IRQ_ENABLE			0x012
-#define DPCON_CMDID_GET_IRQ_ENABLE			0x013
-#define DPCON_CMDID_SET_IRQ_MASK			0x014
-#define DPCON_CMDID_GET_IRQ_MASK			0x015
-#define DPCON_CMDID_GET_IRQ_STATUS			0x016
-#define DPCON_CMDID_CLEAR_IRQ_STATUS			0x017
-
-#define DPCON_CMDID_SET_NOTIFICATION			0x100
-
-#endif /* _FSL_DPCON_CMD_H */
diff --git a/drivers/staging/fsl-mc/include/dpmng.h b/drivers/staging/fsl-mc/include/dpmng.h
deleted file mode 100644
index 1b052b830993..000000000000
--- a/drivers/staging/fsl-mc/include/dpmng.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef __FSL_DPMNG_H
-#define __FSL_DPMNG_H
-
-/* Management Complex General API
- * Contains general API for the Management Complex firmware
- */
-
-struct fsl_mc_io;
-
-/**
- * Management Complex firmware version information
- */
-#define MC_VER_MAJOR 6
-#define MC_VER_MINOR 0
-
-/**
- * struct mc_versoin
- * @major: Major version number: incremented on API compatibility changes
- * @minor: Minor version number: incremented on API additions (that are
- *		backward compatible); reset when major version is incremented
- * @revision: Internal revision number: incremented on implementation changes
- *		and/or bug fixes that have no impact on API
- */
-struct mc_version {
-	uint32_t major;
-	uint32_t minor;
-	uint32_t revision;
-};
-
-/**
- * mc_get_version() - Retrieves the Management Complex firmware
- *			version information
- * @mc_io:		Pointer to opaque I/O object
- * @mc_ver_info:	Returned version information structure
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int mc_get_version(struct fsl_mc_io *mc_io, struct mc_version *mc_ver_info);
-
-/**
- * dpmng_get_container_id() - Get container ID associated with a given portal.
- * @mc_io:		Pointer to MC portal's I/O object
- * @container_id:	Requested container ID
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dpmng_get_container_id(struct fsl_mc_io *mc_io, int *container_id);
-
-#endif /* __FSL_DPMNG_H */
diff --git a/drivers/staging/fsl-mc/include/dprc.h b/drivers/staging/fsl-mc/include/dprc.h
deleted file mode 100644
index f1862a78a409..000000000000
--- a/drivers/staging/fsl-mc/include/dprc.h
+++ /dev/null
@@ -1,801 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef _FSL_DPRC_H
-#define _FSL_DPRC_H
-
-/* Data Path Resource Container API
- * Contains DPRC API for managing and querying DPAA resources
- */
-
-struct fsl_mc_io;
-
-/**
- * Set this value as the icid value in dprc_cfg structure when creating a
- * container, in case the ICID is not selected by the user and should be
- * allocated by the DPRC from the pool of ICIDs.
- */
-#define DPRC_GET_ICID_FROM_POOL			(uint16_t)(~(0))
-
-/**
- * Set this value as the portal_id value in dprc_cfg structure when creating a
- * container, in case the portal ID is not specifically selected by the
- * user and should be allocated by the DPRC from the pool of portal ids.
- */
-#define DPRC_GET_PORTAL_ID_FROM_POOL	(int)(~(0))
-
-/**
- * dprc_open() - Open DPRC object for use
- * @mc_io:	Pointer to MC portal's I/O object
- * @container_id: Container ID to open
- * @token:	Returned token of DPRC object
- *
- * Return:	'0' on Success; Error code otherwise.
- *
- * @warning	Required before any operation on the object.
- */
-int dprc_open(struct fsl_mc_io *mc_io, int container_id, uint16_t *token);
-
-/**
- * dprc_close() - Close the control session of the object
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- *
- * After this function is called, no further operations are
- * allowed on the object without opening a new control session.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_close(struct fsl_mc_io *mc_io, uint16_t token);
-
-/**
- * Container general options
- *
- * These options may be selected at container creation by the container creator
- * and can be retrieved using dprc_get_attributes()
- */
-
-/* Spawn Policy Option allowed - Indicates that the new container is allowed
- * to spawn and have its own child containers.
- */
-#define DPRC_CFG_OPT_SPAWN_ALLOWED		0x00000001
-
-/* General Container allocation policy - Indicates that the new container is
- * allowed to allocate requested resources from its parent container; if not
- * set, the container is only allowed to use resources in its own pools; Note
- * that this is a container's global policy, but the parent container may
- * override it and set specific quota per resource type.
- */
-#define DPRC_CFG_OPT_ALLOC_ALLOWED		0x00000002
-
-/* Object initialization allowed - software context associated with this
- * container is allowed to invoke object initialization operations.
- */
-#define DPRC_CFG_OPT_OBJ_CREATE_ALLOWED	0x00000004
-
-/* Topology change allowed - software context associated with this
- * container is allowed to invoke topology operations, such as attach/detach
- * of network objects.
- */
-#define DPRC_CFG_OPT_TOPOLOGY_CHANGES_ALLOWED	0x00000008
-
-/* IOMMU bypass - indicates whether objects of this container are permitted
- * to bypass the IOMMU.
- */
-#define DPRC_CFG_OPT_IOMMU_BYPASS		0x00000010
-
-/* AIOP - Indicates that container belongs to AIOP.  */
-#define DPRC_CFG_OPT_AIOP			0x00000020
-
-/**
- * struct dprc_cfg - Container configuration options
- * @icid: Container's ICID; if set to 'DPRC_GET_ICID_FROM_POOL', a free
- *		ICID value is allocated by the DPRC
- * @portal_id: Portal ID; if set to 'DPRC_GET_PORTAL_ID_FROM_POOL', a free
- *		portal ID is allocated by the DPRC
- * @options: Combination of 'DPRC_CFG_OPT_<X>' options
- */
-struct dprc_cfg {
-	uint16_t icid;
-	int portal_id;
-	uint64_t options;
-};
-
-/**
- * dprc_create_container() - Create child container
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @cfg:	Child container configuration
- * @child_container_id:	Returned child container ID
- * @child_portal_paddr:	Returned base physical address of the
- *					child portal
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_create_container(struct fsl_mc_io	*mc_io,
-			  uint16_t		token,
-			  struct dprc_cfg	*cfg,
-			  int			*child_container_id,
-			  uint64_t		*child_portal_paddr);
-
-/**
- * dprc_destroy_container() - Destroy child container.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @child_container_id:	ID of the container to destroy
- *
- * This function terminates the child container, so following this call the
- * child container ID becomes invalid.
- *
- * Notes:
- * - All resources and objects of the destroyed container are returned to the
- * parent container or destroyed if were created be the destroyed container.
- * - This function destroy all the child containers of the specified
- *   container prior to destroying the container itself.
- *
- * warning: Only the parent container is allowed to destroy a child policy
- *		Container 0 can't be destroyed
- *
- * Return:	'0' on Success; Error code otherwise.
- *
- */
-int dprc_destroy_container(struct fsl_mc_io	*mc_io,
-			   uint16_t		token,
-			   int			child_container_id);
-
-/**
- * dprc_reset_container - Reset child container.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @child_container_id:	ID of the container to reset
- *
- * In case a software context crashes or becomes non-responsive, the parent
- * may wish to reset its resources container before the software context is
- * restarted.
- *
- * This routine informs all objects assigned to the child container that the
- * container is being reset, so they may perform any cleanup operations that are
- * needed. All objects handles that were owned by the child container shall be
- * closed.
- *
- * Note that such request may be submitted even if the child software context
- * has not crashed, but the resulting object cleanup operations will not be
- * aware of that.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_reset_container(struct fsl_mc_io *mc_io,
-			 uint16_t token,
-			 int child_container_id);
-
-/* IRQ */
-
-/* Number of dprc's IRQs */
-#define DPRC_NUM_OF_IRQS		1
-
-/* Object irq events */
-
-/* IRQ event - Indicates that a new object assigned to the container */
-#define DPRC_IRQ_EVENT_OBJ_ADDED		0x00000001
-/* IRQ event - Indicates that an object was unassigned from the container */
-#define DPRC_IRQ_EVENT_OBJ_REMOVED		0x00000002
-/* IRQ event - Indicates that resources assigned to the container */
-#define DPRC_IRQ_EVENT_RES_ADDED		0x00000004
-/* IRQ event - Indicates that resources unassigned from the container */
-#define DPRC_IRQ_EVENT_RES_REMOVED		0x00000008
-/* IRQ event - Indicates that one of the descendant containers that opened by
- * this container is destroyed
- */
-#define DPRC_IRQ_EVENT_CONTAINER_DESTROYED	0x00000010
-
-/* IRQ event - Indicates that on one of the container's opened object is
- * destroyed
- */
-#define DPRC_IRQ_EVENT_OBJ_DESTROYED		0x00000020
-
-/* Irq event - Indicates that object is created at the container */
-#define DPRC_IRQ_EVENT_OBJ_CREATED		0x00000040
-
-/**
- * dprc_set_irq() - Set IRQ information for the DPRC to trigger an interrupt.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:	Identifies the interrupt index to configure
- * @irq_addr:	Address that must be written to
- *			signal a message-based interrupt
- * @irq_val:	Value to write into irq_addr address
- * @user_irq_id: Returned a user defined number associated with this IRQ
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_set_irq(struct fsl_mc_io	*mc_io,
-		 uint16_t		token,
-		 uint8_t		irq_index,
-		 uint64_t		irq_addr,
-		 uint32_t		irq_val,
-		 int			user_irq_id);
-
-/**
- * dprc_get_irq() - Get IRQ information from the DPRC.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:	The interrupt index to configure
- * @type:	Returned interrupt type: 0 represents message interrupt
- *			type (both irq_addr and irq_val are valid)
- * @irq_addr:	Returned address that must be written to
- *			signal the message-based interrupt
- * @irq_val:	Value to write into irq_addr address
- * @user_irq_id: A user defined number associated with this IRQ
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_irq(struct fsl_mc_io	*mc_io,
-		 uint16_t		token,
-		 uint8_t		irq_index,
-		 int			*type,
-		 uint64_t		*irq_addr,
-		 uint32_t		*irq_val,
-		 int			*user_irq_id);
-
-/**
- * dprc_set_irq_enable() - Set overall interrupt state.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:	The interrupt index to configure
- * @en:		Interrupt state - enable = 1, disable = 0
- *
- * Allows GPP software to control when interrupts are generated.
- * Each interrupt can have up to 32 causes.  The enable/disable control's the
- * overall interrupt state. if the interrupt is disabled no causes will cause
- * an interrupt.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_set_irq_enable(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			uint8_t			irq_index,
-			uint8_t			en);
-
-/**
- * dprc_get_irq_enable() - Get overall interrupt state.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:  The interrupt index to configure
- * @en:		Returned interrupt state - enable = 1, disable = 0
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_irq_enable(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			uint8_t			irq_index,
-			uint8_t			*en);
-
-/**
- * dprc_set_irq_mask() - Set interrupt mask.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:	The interrupt index to configure
- * @mask:	event mask to trigger interrupt;
- *			each bit:
- *				0 = ignore event
- *				1 = consider event for asserting irq
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_set_irq_mask(struct fsl_mc_io	*mc_io,
-		      uint16_t		token,
-		      uint8_t		irq_index,
-		      uint32_t		mask);
-
-/**
- * dprc_get_irq_mask() - Get interrupt mask.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:	The interrupt index to configure
- * @mask:	Returned event mask to trigger interrupt
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_irq_mask(struct fsl_mc_io	*mc_io,
-		      uint16_t		token,
-		      uint8_t		irq_index,
-		      uint32_t		*mask);
-
-/**
- * dprc_get_irq_status() - Get the current status of any pending interrupts.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:	The interrupt index to configure
- * @status:	Returned interrupts status - one bit per cause:
- *			0 = no interrupt pending
- *			1 = interrupt pending
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_irq_status(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			uint8_t			irq_index,
-			uint32_t		*status);
-
-/**
- * dprc_clear_irq_status() - Clear a pending interrupt's status
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @irq_index:	The interrupt index to configure
- * @status:	bits to clear (W1C) - one bit per cause:
- *					0 = don't change
- *					1 = clear status bit
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_clear_irq_status(struct fsl_mc_io	*mc_io,
-			  uint16_t		token,
-			  uint8_t		irq_index,
-			  uint32_t		status);
-
-/**
- * struct dprc_attributes - Container attributes
- * @container_id: Container's ID
- * @icid: Container's ICID
- * @portal_id: Container's portal ID
- * @options: Container's options as set at container's creation
- * @version: DPRC version
- */
-struct dprc_attributes {
-	int container_id;
-	uint16_t icid;
-	int portal_id;
-	uint64_t options;
-	/**
-	 * struct version - DPRC version
-	 * @major: DPRC major version
-	 * @minor: DPRC minor version
-	 */
-	struct {
-		uint16_t major;
-		uint16_t minor;
-	} version;
-};
-
-/**
- * dprc_get_attributes() - Obtains container attributes
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @attributes	Returned container attributes
- *
- * Return:     '0' on Success; Error code otherwise.
- */
-int dprc_get_attributes(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			struct dprc_attributes	*attributes);
-
-/**
- * dprc_set_res_quota() - Set allocation policy for a specific resource/object
- *		type in a child container
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @child_container_id:	ID of the child container
- * @type:	Resource/object type
- * @quota:	Sets the maximum number of resources of	the selected type
- *		that the child container is allowed to allocate from its parent;
- *		when quota is set to -1, the policy is the same as container's
- *		general policy.
- *
- * Allocation policy determines whether or not a container may allocate
- * resources from its parent. Each container has a 'global' allocation policy
- * that is set when the container is created.
- *
- * This function sets allocation policy for a specific resource type.
- * The default policy for all resource types matches the container's 'global'
- * allocation policy.
- *
- * Return:	'0' on Success; Error code otherwise.
- *
- * @warning	Only the parent container is allowed to change a child policy.
- */
-int dprc_set_res_quota(struct fsl_mc_io	*mc_io,
-		       uint16_t		token,
-		       int		child_container_id,
-		       char		*type,
-		       uint16_t		quota);
-
-/**
- * dprc_get_res_quota() - Gets the allocation policy of a specific
- *		resource/object type in a child container
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @child_container_id;	ID of the child container
- * @type:	resource/object type
- * @quota:	Returnes the maximum number of resources of the selected type
- *		that the child container is allowed to allocate from the parent;
- *		when quota is set to -1, the policy is the same as container's
- *		general policy.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_res_quota(struct fsl_mc_io	*mc_io,
-		       uint16_t		token,
-		       int		child_container_id,
-		       char		*type,
-		       uint16_t		*quota);
-
-/* Resource request options */
-
-/* Explicit resource ID request - The requested objects/resources
- * are explicit and sequential (in case of resources).
- * The base ID is given at res_req at base_align field
- */
-#define DPRC_RES_REQ_OPT_EXPLICIT		0x00000001
-
-/* Aligned resources request - Relevant only for resources
- * request (and not objects). Indicates that resources base ID should be
- * sequential and aligned to the value given at dprc_res_req base_align field
- */
-#define DPRC_RES_REQ_OPT_ALIGNED		0x00000002
-
-/* Plugged Flag - Relevant only for object assignment request.
- * Indicates that after all objects assigned. An interrupt will be invoked at
- * the relevant GPP. The assigned object will be marked as plugged.
- * plugged objects can't be assigned from their container
- */
-#define DPRC_RES_REQ_OPT_PLUGGED		0x00000004
-
-/**
- * struct dprc_res_req - Resource request descriptor, to be used in assignment
- *			or un-assignment of resources and objects.
- * @type: Resource/object type: Represent as a NULL terminated string.
- *	This string may received by using dprc_get_pool() to get resource
- *	type and dprc_get_obj() to get object type;
- *	Note: it is not possible to assign/un-assign DPRC objects
- * @num: Number of resources
- * @options: Request options: combination of DPRC_RES_REQ_OPT_ options
- * @id_base_align: In case of explicit assignment (DPRC_RES_REQ_OPT_EXPLICIT
- *		is set at option), this field represents the required base ID
- *		for resource allocation; In case of aligned assignment
- *		(DPRC_RES_REQ_OPT_ALIGNED is set at option), this field
- *		indicates the required alignment for the resource ID(s) -
- *		use 0 if there is no alignment or explicit ID requirements
- */
-struct dprc_res_req {
-	char type[16];
-	uint32_t num;
-	uint32_t options;
-	int id_base_align;
-};
-
-/**
- * dprc_assign() - Assigns objects or resource to a child container.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @container_id: ID of the child container
- * @res_req:	Describes the type and amount of resources to
- *			assign to the given container
- *
- * Assignment is usually done by a parent (this DPRC) to one of its child
- * containers.
- *
- * According to the DPRC allocation policy, the assigned resources may be taken
- * (allocated) from the container's ancestors, if not enough resources are
- * available in the container itself.
- *
- * The type of assignment depends on the dprc_res_req options, as follows:
- * - DPRC_RES_REQ_OPT_EXPLICIT: indicates that assigned resources should have
- *   the explicit base ID specified at the id_base_align field of res_req.
- * - DPRC_RES_REQ_OPT_ALIGNED: indicates that the assigned resources should be
- *   aligned to the value given at id_base_align field of res_req.
- * - DPRC_RES_REQ_OPT_PLUGGED: Relevant only for object assignment,
- *   and indicates that the object must be set to the plugged state.
- *
- * A container may use this function with its own ID in order to change a
- * object state to plugged or unplugged.
- *
- * If IRQ information has been set in the child DPRC, it will signal an
- * interrupt following every change in its object assignment.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_assign(struct fsl_mc_io	*mc_io,
-		uint16_t		token,
-		int			container_id,
-		struct dprc_res_req	*res_req);
-
-/**
- * dprc_unassign() - Un-assigns objects or resources from a child container
- *		and moves them into this (parent) DPRC.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @child_container_id:	ID of the child container
- * @res_req:	Describes the type and amount of resources to un-assign from
- *		the child container
- *
- * Un-assignment of objects can succeed only if the object is not in the
- * plugged or opened state.
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_unassign(struct fsl_mc_io	*mc_io,
-		  uint16_t		token,
-		  int			child_container_id,
-		  struct dprc_res_req	*res_req);
-
-/**
- * dprc_get_pool_count() - Get the number of dprc's pools
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @pool_count:	Returned number of resource pools in the dprc
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_pool_count(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			int			*pool_count);
-
-/**
- * dprc_get_pool() - Get the type (string) of a certain dprc's pool
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @pool_index;	Index of the pool to be queried (< pool_count)
- * @type:	The type of the pool
- *
- * The pool types retrieved one by one by incrementing
- * pool_index up to (not including) the value of pool_count returned
- * from dprc_get_pool_count(). dprc_get_pool_count() must
- * be called prior to dprc_get_pool().
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_pool(struct fsl_mc_io	*mc_io,
-		  uint16_t		token,
-		  int			pool_index,
-		  char			*type);
-
-/**
- * dprc_get_obj_count() - Obtains the number of objects in the DPRC
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @obj_count:	Number of objects assigned to the DPRC
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_obj_count(struct fsl_mc_io *mc_io, uint16_t token, int *obj_count);
-
-/* Objects Attributes Flags */
-
-/* Opened state - Indicates that an object is open by at least one owner */
-#define DPRC_OBJ_STATE_OPEN		0x00000001
-/* Plugged state - Indicates that the object is plugged */
-#define DPRC_OBJ_STATE_PLUGGED		0x00000002
-
-/**
- * struct dprc_obj_desc - Object descriptor, returned from dprc_get_obj()
- * @type: Type of object: NULL terminated string
- * @id: ID of logical object resource
- * @vendor: Object vendor identifier
- * @ver_major: Major version number
- * @ver_minor:  Minor version number
- * @irq_count: Number of interrupts supported by the object
- * @region_count: Number of mappable regions supported by the object
- * @state: Object state: combination of DPRC_OBJ_STATE_ states
- */
-struct dprc_obj_desc {
-	char type[16];
-	int id;
-	uint16_t vendor;
-	uint16_t ver_major;
-	uint16_t ver_minor;
-	uint8_t irq_count;
-	uint8_t region_count;
-	uint32_t state;
-};
-
-/**
- * dprc_get_obj() - Get general information on an object
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @obj_index:	Index of the object to be queried (< obj_count)
- * @obj_desc:	Returns the requested object descriptor
- *
- * The object descriptors are retrieved one by one by incrementing
- * obj_index up to (not including) the value of obj_count returned
- * from dprc_get_obj_count(). dprc_get_obj_count() must
- * be called prior to dprc_get_obj().
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_obj(struct fsl_mc_io	*mc_io,
-		 uint16_t		token,
-		 int			obj_index,
-		 struct dprc_obj_desc	*obj_desc);
-
-/**
- * dprc_get_res_count() - Obtains the number of free resources that are assigned
- *		to this container, by pool type
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @type:	pool type
- * @res_count:	Returned number of free resources of the given
- *			resource type that are assigned to this DPRC
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_res_count(struct fsl_mc_io	*mc_io,
-		       uint16_t		token,
-		       char		*type,
-		       int		*res_count);
-
-/**
- * enum dprc_iter_status - Iteration status
- * @DPRC_ITER_STATUS_FIRST: Perform first iteration
- * @DPRC_ITER_STATUS_MORE: Indicates more/next iteration is needed
- * @DPRC_ITER_STATUS_LAST: Indicates last iteration
- */
-enum dprc_iter_status {
-	DPRC_ITER_STATUS_FIRST = 0,
-	DPRC_ITER_STATUS_MORE = 1,
-	DPRC_ITER_STATUS_LAST = 2
-};
-
-/**
- * struct dprc_res_ids_range_desc - Resource ID range descriptor
- * @base_id: Base resource ID of this range
- * @last_id: Last resource ID of this range
- * @iter_status: Iteration status - should be set to DPRC_ITER_STATUS_FIRST at
- *	first iteration; while the returned marker is DPRC_ITER_STATUS_MORE,
- *	additional iterations are needed, until the returned marker is
- *	DPRC_ITER_STATUS_LAST
- */
-struct dprc_res_ids_range_desc {
-	int base_id;
-	int last_id;
-	enum dprc_iter_status iter_status;
-};
-
-/**
- * dprc_get_res_ids() - Obtains IDs of free resources in the container
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @type:	pool type
- * @range_desc:	range descriptor
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_res_ids(struct fsl_mc_io			*mc_io,
-		     uint16_t				token,
-		     char				*type,
-		     struct dprc_res_ids_range_desc	*range_desc);
-
-/**
- * dprc_get_portal_paddr() - Get the physical address of MC portals
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @portal_id:	MC portal ID
- * @portal_addr: The physical address of the MC portal ID
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_portal_paddr(struct fsl_mc_io	*mc_io,
-			  uint16_t		token,
-			  int			portal_id,
-			  uint64_t		*portal_addr);
-
-/**
- * struct dprc_region_desc - Mappable region descriptor
- * @base_paddr: Region base physical address
- * @size: Region size (in bytes)
- */
-struct dprc_region_desc {
-	uint64_t base_paddr;
-	uint32_t size;
-};
-
-/**
- * dprc_get_obj_region() - Get region information for a specified object.
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @obj_type;	Object type as returned in dprc_get_obj()
- * @obj_id:	Unique object instance as returned in dprc_get_obj()
- * @region_index: The specific region to query
- * @region_desc:  Returns the requested region descriptor
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_get_obj_region(struct fsl_mc_io	*mc_io,
-			uint16_t		token,
-			char			*obj_type,
-			int			obj_id,
-			uint8_t			region_index,
-			struct dprc_region_desc	*region_desc);
-
-/**
- * struct dprc_endpoint - Endpoint description for link connect/disconnect
- *			operations
- * @type: Endpoint object type: NULL terminated string
- * @id: Endpoint object ID
- * @interface_id: Interface ID; should be set for endpoints with multiple
- *		interfaces ("dpsw", "dpdmux"); for others, always set to 0
- */
-struct dprc_endpoint {
-	char type[16];
-	int id;
-	int interface_id;
-};
-
-/**
- * dprc_connect() - Connect two endpoints to create a network link between them
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @endpoint1:	Endpoint 1 configuration parameters
- * @endpoint2:	Endpoint 2 configuration parameters
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_connect(struct fsl_mc_io		*mc_io,
-		 uint16_t			token,
-		 const struct dprc_endpoint	*endpoint1,
-		 const struct dprc_endpoint	*endpoint2);
-
-/**
- * dprc_disconnect() - Disconnect one endpoint to remove its network connection
- * @mc_io:	Pointer to MC portal's I/O object
- * @token:	Token of DPRC object
- * @endpoint:	Endpoint configuration parameters
- *
- * Return:	'0' on Success; Error code otherwise.
- */
-int dprc_disconnect(struct fsl_mc_io		*mc_io,
-		    uint16_t			token,
-		    const struct dprc_endpoint	*endpoint);
-
-/**
-* dprc_get_connection() - Get connected endpoint and link status if connection
-*			exists.
-* @mc_io		Pointer to MC portal's I/O object
-* @token		Token of DPRC object
-* @endpoint1	Endpoint 1 configuration parameters
-* @endpoint2	Returned endpoint 2 configuration parameters
-* @state:	Returned link state: 1 - link is up, 0 - link is down
-*
-* Return:     '0' on Success; -ENAVAIL if connection does not exist.
-*/
-int dprc_get_connection(struct fsl_mc_io		*mc_io,
-			uint16_t			token,
-			const struct dprc_endpoint	*endpoint1,
-			struct dprc_endpoint		*endpoint2,
-			int				*state);
-
-#endif /* _FSL_DPRC_H */
-
diff --git a/drivers/staging/fsl-mc/include/mc-cmd.h b/drivers/staging/fsl-mc/include/mc-cmd.h
deleted file mode 100644
index 32501e020054..000000000000
--- a/drivers/staging/fsl-mc/include/mc-cmd.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef __FSL_MC_CMD_H
-#define __FSL_MC_CMD_H
-
-#define MC_CMD_NUM_OF_PARAMS	7
-
-#define MAKE_UMASK64(_width) \
-	((uint64_t)((_width) < 64 ? ((uint64_t)1 << (_width)) - 1 : -1))
-
-static inline uint64_t mc_enc(int lsoffset, int width, uint64_t val)
-{
-	return (uint64_t)(((uint64_t)val & MAKE_UMASK64(width)) << lsoffset);
-}
-
-static inline uint64_t mc_dec(uint64_t val, int lsoffset, int width)
-{
-	return (uint64_t)((val >> lsoffset) & MAKE_UMASK64(width));
-}
-
-struct mc_command {
-	uint64_t header;
-	uint64_t params[MC_CMD_NUM_OF_PARAMS];
-};
-
-enum mc_cmd_status {
-	MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
-	MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
-	MC_CMD_STATUS_AUTH_ERR = 0x3, /* Authentication error */
-	MC_CMD_STATUS_NO_PRIVILEGE = 0x4, /* No privilege */
-	MC_CMD_STATUS_DMA_ERR = 0x5, /* DMA or I/O error */
-	MC_CMD_STATUS_CONFIG_ERR = 0x6, /* Configuration error */
-	MC_CMD_STATUS_TIMEOUT = 0x7, /* Operation timed out */
-	MC_CMD_STATUS_NO_RESOURCE = 0x8, /* No resources */
-	MC_CMD_STATUS_NO_MEMORY = 0x9, /* No memory available */
-	MC_CMD_STATUS_BUSY = 0xA, /* Device is busy */
-	MC_CMD_STATUS_UNSUPPORTED_OP = 0xB, /* Unsupported operation */
-	MC_CMD_STATUS_INVALID_STATE = 0xC /* Invalid state */
-};
-
-#define MC_CMD_HDR_CMDID_O	52	/* Command ID field offset */
-#define MC_CMD_HDR_CMDID_S	12	/* Command ID field size */
-#define MC_CMD_HDR_TOKEN_O	38	/* Token field offset */
-#define MC_CMD_HDR_TOKEN_S	10	/* Token field size */
-#define MC_CMD_HDR_STATUS_O	16	/* Status field offset */
-#define MC_CMD_HDR_STATUS_S	8	/* Status field size*/
-#define MC_CMD_HDR_PRI_O	15	/* Priority field offset */
-#define MC_CMD_HDR_PRI_S	1	/* Priority field size */
-
-#define MC_CMD_HDR_READ_STATUS(_hdr) \
-	((enum mc_cmd_status)mc_dec((_hdr), \
-		MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S))
-
-#define MC_CMD_HDR_READ_TOKEN(_hdr) \
-	((uint16_t)mc_dec((_hdr), MC_CMD_HDR_TOKEN_O, MC_CMD_HDR_TOKEN_S))
-
-#define MC_CMD_PRI_LOW		0 /* Low Priority command indication */
-#define MC_CMD_PRI_HIGH		1 /* High Priority command indication */
-
-#define MC_EXT_OP(_ext, _param, _offset, _width, _type, _arg) \
-	((_ext)[_param] |= mc_enc((_offset), (_width), _arg))
-
-#define MC_CMD_OP(_cmd, _param, _offset, _width, _type, _arg) \
-	((_cmd).params[_param] |= mc_enc((_offset), (_width), _arg))
-
-#define MC_RSP_OP(_cmd, _param, _offset, _width, _type, _arg) \
-	(_arg = (_type)mc_dec(_cmd.params[_param], (_offset), (_width)))
-
-static inline uint64_t mc_encode_cmd_header(uint16_t cmd_id,
-					    uint8_t priority,
-					    uint16_t token)
-{
-	uint64_t hdr;
-
-	hdr = mc_enc(MC_CMD_HDR_CMDID_O, MC_CMD_HDR_CMDID_S, cmd_id);
-	hdr |= mc_enc(MC_CMD_HDR_TOKEN_O, MC_CMD_HDR_TOKEN_S, token);
-	hdr |= mc_enc(MC_CMD_HDR_PRI_O, MC_CMD_HDR_PRI_S, priority);
-	hdr |= mc_enc(MC_CMD_HDR_STATUS_O, MC_CMD_HDR_STATUS_S,
-		       MC_CMD_STATUS_READY);
-
-	return hdr;
-}
-
-#endif /* __FSL_MC_CMD_H */
diff --git a/drivers/staging/fsl-mc/include/mc-private.h b/drivers/staging/fsl-mc/include/mc-private.h
deleted file mode 100644
index c045f49f227e..000000000000
--- a/drivers/staging/fsl-mc/include/mc-private.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Freescale Management Complex (MC) bus private declarations
- *
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
- * Author: German Rivera <German.Rivera@freescale.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-#ifndef _FSL_MC_PRIVATE_H_
-#define _FSL_MC_PRIVATE_H_
-
-#include "../include/mc.h"
-#include <linux/mutex.h>
-#include <linux/stringify.h>
-
-#define FSL_MC_DPRC_DRIVER_NAME    "fsl_mc_dprc"
-
-#define FSL_MC_DEVICE_MATCH(_mc_dev, _obj_desc) \
-	(strcmp((_mc_dev)->obj_desc.type, (_obj_desc)->type) == 0 && \
-	 (_mc_dev)->obj_desc.id == (_obj_desc)->id)
-
-#define FSL_MC_IS_ALLOCATABLE(_obj_type) \
-	(strcmp(_obj_type, "dpbp") == 0 || \
-	 strcmp(_obj_type, "dpmcp") == 0 || \
-	 strcmp(_obj_type, "dpcon") == 0)
-
-/**
- * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
- * @root_mc_bus_dev: MC object device representing the root DPRC
- * @addr_translation_ranges: array of bus to system address translation ranges
- */
-struct fsl_mc {
-	struct fsl_mc_device *root_mc_bus_dev;
-	uint8_t num_translation_ranges;
-	struct fsl_mc_addr_translation_range *translation_ranges;
-};
-
-/**
- * struct fsl_mc_addr_translation_range - bus to system address translation
- * range
- * @start_mc_addr: Start MC address of the range being translated
- * @end_mc_addr: MC address of the first byte after the range (last MC
- * address of the range is end_mc_addr - 1)
- * @start_phys_addr: system physical address corresponding to start_mc_addr
- */
-struct fsl_mc_addr_translation_range {
-	uint64_t start_mc_addr;
-	uint64_t end_mc_addr;
-	phys_addr_t start_phys_addr;
-};
-
-/**
- * struct fsl_mc_resource_pool - Pool of MC resources of a given
- * type
- * @type: type of resources in the pool
- * @max_count: maximum number of resources in the pool
- * @free_count: number of free resources in the pool
- * @mutex: mutex to serialize access to the pool's free list
- * @free_list: anchor node of list of free resources in the pool
- * @mc_bus: pointer to the MC bus that owns this resource pool
- */
-struct fsl_mc_resource_pool {
-	enum fsl_mc_pool_type type;
-	int16_t max_count;
-	int16_t free_count;
-	struct mutex mutex;	/* serializes access to free_list */
-	struct list_head free_list;
-	struct fsl_mc_bus *mc_bus;
-};
-
-/**
- * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC
- * @mc_dev: fsl-mc device for the bus device itself.
- * @resource_pools: array of resource pools (one pool per resource type)
- * for this MC bus. These resources represent allocatable entities
- * from the physical DPRC.
- * @scan_mutex: Serializes bus scanning
- */
-struct fsl_mc_bus {
-	struct fsl_mc_device mc_dev;
-	struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES];
-	struct mutex scan_mutex;    /* serializes bus scanning */
-};
-
-#define to_fsl_mc_bus(_mc_dev) \
-	container_of(_mc_dev, struct fsl_mc_bus, mc_dev)
-
-int __must_check fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
-				   struct fsl_mc_io *mc_io,
-				   struct device *parent_dev,
-				   struct fsl_mc_device **new_mc_dev);
-
-void fsl_mc_device_remove(struct fsl_mc_device *mc_dev);
-
-int dprc_scan_container(struct fsl_mc_device *mc_bus_dev);
-
-int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev);
-
-int __init dprc_driver_init(void);
-
-void __exit dprc_driver_exit(void);
-
-int __init fsl_mc_allocator_driver_init(void);
-
-void __exit fsl_mc_allocator_driver_exit(void);
-
-int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
-					  enum fsl_mc_pool_type pool_type,
-					  struct fsl_mc_resource
-							  **new_resource);
-
-void fsl_mc_resource_free(struct fsl_mc_resource *resource);
-
-#endif /* _FSL_MC_PRIVATE_H_ */
diff --git a/drivers/staging/fsl-mc/include/mc-sys.h b/drivers/staging/fsl-mc/include/mc-sys.h
deleted file mode 100644
index cb3b5a296615..000000000000
--- a/drivers/staging/fsl-mc/include/mc-sys.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
- *
- * Interface of the I/O services to send MC commands to the MC hardware
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *     * Neither the name of the above-listed copyright holders nor the
- *       names of any contributors may be used to endorse or promote products
- *       derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _FSL_MC_SYS_H
-#define _FSL_MC_SYS_H
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/dma-mapping.h>
-
-struct fsl_mc_resource;
-struct mc_command;
-
-/**
- * struct fsl_mc_io - MC I/O object to be passed-in to mc_send_command()
- * @dev: device associated with this Mc I/O object
- * @flags: flags for mc_send_command()
- * @portal_size: MC command portal size in bytes
- * @portal_phys_addr: MC command portal physical address
- * @portal_virt_addr: MC command portal virtual address
- * @resource: generic resource associated with the MC portal if
- * the MC portal came from a resource pool, or NULL if the MC portal
- * is permanently bound to a device (e.g., a DPRC)
- */
-struct fsl_mc_io {
-	struct device *dev;
-	uint32_t flags;
-	uint32_t portal_size;
-	phys_addr_t portal_phys_addr;
-	void __iomem *portal_virt_addr;
-	struct fsl_mc_resource *resource;
-};
-
-int __must_check fsl_create_mc_io(struct device *dev,
-				  phys_addr_t mc_portal_phys_addr,
-				  uint32_t mc_portal_size,
-				  struct fsl_mc_resource *resource,
-				  uint32_t flags, struct fsl_mc_io **new_mc_io);
-
-void fsl_destroy_mc_io(struct fsl_mc_io *mc_io);
-
-int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd);
-
-#endif /* _FSL_MC_SYS_H */
diff --git a/drivers/staging/fsl-mc/include/mc.h b/drivers/staging/fsl-mc/include/mc.h
deleted file mode 100644
index fa02ef0529e7..000000000000
--- a/drivers/staging/fsl-mc/include/mc.h
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * Freescale Management Complex (MC) bus public interface
- *
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
- * Author: German Rivera <German.Rivera@freescale.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-#ifndef _FSL_MC_H_
-#define _FSL_MC_H_
-
-#include <linux/device.h>
-#include <linux/mod_devicetable.h>
-#include <linux/list.h>
-#include "../include/dprc.h"
-
-#define FSL_MC_VENDOR_FREESCALE	0x1957
-
-struct fsl_mc_device;
-struct fsl_mc_io;
-
-/**
- * struct fsl_mc_driver - MC object device driver object
- * @driver: Generic device driver
- * @match_id_table: table of supported device matching Ids
- * @probe: Function called when a device is added
- * @remove: Function called when a device is removed
- * @shutdown: Function called at shutdown time to quiesce the device
- * @suspend: Function called when a device is stopped
- * @resume: Function called when a device is resumed
- *
- * Generic DPAA device driver object for device drivers that are registered
- * with a DPRC bus. This structure is to be embedded in each device-specific
- * driver structure.
- */
-struct fsl_mc_driver {
-	struct device_driver driver;
-	const struct fsl_mc_device_match_id *match_id_table;
-	int (*probe)(struct fsl_mc_device *dev);
-	int (*remove)(struct fsl_mc_device *dev);
-	void (*shutdown)(struct fsl_mc_device *dev);
-	int (*suspend)(struct fsl_mc_device *dev, pm_message_t state);
-	int (*resume)(struct fsl_mc_device *dev);
-};
-
-#define to_fsl_mc_driver(_drv) \
-	container_of(_drv, struct fsl_mc_driver, driver)
-
-/**
- * struct fsl_mc_device_match_id - MC object device Id entry for driver matching
- * @vendor: vendor ID
- * @obj_type: MC object type
- * @ver_major: MC object version major number
- * @ver_minor: MC object version minor number
- *
- * Type of entries in the "device Id" table for MC object devices supported by
- * a MC object device driver. The last entry of the table has vendor set to 0x0
- */
-struct fsl_mc_device_match_id {
-	uint16_t vendor;
-	const char obj_type[16];
-	uint32_t ver_major;
-	uint32_t ver_minor;
-};
-
-/**
- * enum fsl_mc_pool_type - Types of allocatable MC bus resources
- *
- * Entries in these enum are used as indices in the array of resource
- * pools of an fsl_mc_bus object.
- */
-enum fsl_mc_pool_type {
-	FSL_MC_POOL_DPMCP = 0x0,    /* corresponds to "dpmcp" in the MC */
-	FSL_MC_POOL_DPBP,	    /* corresponds to "dpbp" in the MC */
-	FSL_MC_POOL_DPCON,	    /* corresponds to "dpcon" in the MC */
-
-	/*
-	 * NOTE: New resource pool types must be added before this entry
-	 */
-	FSL_MC_NUM_POOL_TYPES
-};
-
-/**
- * struct fsl_mc_resource - MC generic resource
- * @type: type of resource
- * @id: unique MC resource Id within the resources of the same type
- * @data: pointer to resource-specific data if the resource is currently
- * allocated, or NULL if the resource is not currently allocated.
- * @parent_pool: pointer to the parent resource pool from which this
- * resource is allocated from.
- * @node: Node in the free list of the corresponding resource pool
- *
- * NOTE: This structure is to be embedded as a field of specific
- * MC resource structures.
- */
-struct fsl_mc_resource {
-	enum fsl_mc_pool_type type;
-	int32_t id;
-	void *data;
-	struct fsl_mc_resource_pool *parent_pool;
-	struct list_head node;
-};
-
-/**
- * Bit masks for a MC object device (struct fsl_mc_device) flags
- */
-#define FSL_MC_IS_DPRC	0x0001
-
-/**
- * Default DMA mask for devices on a fsl-mc bus
- */
-#define FSL_MC_DEFAULT_DMA_MASK	(~0ULL)
-
-/**
- * struct fsl_mc_device - MC object device object
- * @dev: Linux driver model device object
- * @dma_mask: Default DMA mask
- * @flags: MC object device flags
- * @icid: Isolation context ID for the device
- * @mc_handle: MC handle for the corresponding MC object opened
- * @mc_io: Pointer to MC IO object assigned to this device or
- * NULL if none.
- * @obj_desc: MC description of the DPAA device
- * @regions: pointer to array of MMIO region entries
- * @resource: generic resource associated with this MC object device, if any.
- *
- * Generic device object for MC object devices that are "attached" to a
- * MC bus.
- *
- * NOTES:
- * - For a non-DPRC object its icid is the same as its parent DPRC's icid.
- * - The SMMU notifier callback gets invoked after device_add() has been
- *   called for an MC object device, but before the device-specific probe
- *   callback gets called.
- * - DP_OBJ_DPRC objects are the only MC objects that have built-in MC
- *   portals. For all other MC objects, their device drivers are responsible for
- *   allocating MC portals for them by calling fsl_mc_portal_allocate().
- * - Some types of MC objects (e.g., DP_OBJ_DPBP, DP_OBJ_DPCON) are
- *   treated as resources that can be allocated/deallocated from the
- *   corresponding resource pool in the object's parent DPRC, using the
- *   fsl_mc_object_allocate()/fsl_mc_object_free() functions. These MC objects
- *   are known as "allocatable" objects. For them, the corresponding
- *   fsl_mc_device's 'resource' points to the associated resource object.
- *   For MC objects that are not allocatable (e.g., DP_OBJ_DPRC, DP_OBJ_DPNI),
- *   'resource' is NULL.
- */
-struct fsl_mc_device {
-	struct device dev;
-	uint64_t dma_mask;
-	uint16_t flags;
-	uint16_t icid;
-	uint16_t mc_handle;
-	struct fsl_mc_io *mc_io;
-	struct dprc_obj_desc obj_desc;
-	struct resource *regions;
-	struct fsl_mc_resource *resource;
-};
-
-#define to_fsl_mc_device(_dev) \
-	container_of(_dev, struct fsl_mc_device, dev)
-
-/*
- * module_fsl_mc_driver() - Helper macro for drivers that don't do
- * anything special in module init/exit.  This eliminates a lot of
- * boilerplate.  Each module may only use this macro once, and
- * calling it replaces module_init() and module_exit()
- */
-#define module_fsl_mc_driver(__fsl_mc_driver) \
-	module_driver(__fsl_mc_driver, fsl_mc_driver_register, \
-		      fsl_mc_driver_unregister)
-
-/*
- * Macro to avoid include chaining to get THIS_MODULE
- */
-#define fsl_mc_driver_register(drv) \
-	__fsl_mc_driver_register(drv, THIS_MODULE)
-
-int __must_check __fsl_mc_driver_register(struct fsl_mc_driver *fsl_mc_driver,
-					  struct module *owner);
-
-void fsl_mc_driver_unregister(struct fsl_mc_driver *driver);
-
-int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
-					uint16_t mc_io_flags,
-					struct fsl_mc_io **new_mc_io);
-
-void fsl_mc_portal_free(struct fsl_mc_io *mc_io);
-
-int fsl_mc_portal_reset(struct fsl_mc_io *mc_io);
-
-int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev,
-					enum fsl_mc_pool_type pool_type,
-					struct fsl_mc_device **new_mc_adev);
-
-void fsl_mc_object_free(struct fsl_mc_device *mc_adev);
-
-extern struct bus_type fsl_mc_bus_type;
-
-#endif /* _FSL_MC_H_ */
diff --git a/drivers/staging/ft1000/Kconfig b/drivers/staging/ft1000/Kconfig
deleted file mode 100644
index c54b4e83d6e9..000000000000
--- a/drivers/staging/ft1000/Kconfig
+++ /dev/null
@@ -1,22 +0,0 @@
-config FT1000
-	tristate "Drivers for Flarion ft1000 devices"
-
-if FT1000
-
-config FT1000_USB
-	tristate "Driver for ft1000 usb devices."
-	depends on USB
-	depends on NET
-	help
-	  Say Y if you want to have support for Qleadtek FLASH-OFDM USB Modem [LR7F04],
-	  Qleadtek Express Card or Leadtek Multi-band modem HSDPA.
-
-config FT1000_PCMCIA
-	tristate "Driver for ft1000 pcmcia device."
-	depends on PCMCIA
-	depends on NET
-	help
-	  Say Y if you want to have support for Flarion card also called
-	  Multimedia Net Card.
-
-endif
diff --git a/drivers/staging/ft1000/Makefile b/drivers/staging/ft1000/Makefile
deleted file mode 100644
index 3e987770a142..000000000000
--- a/drivers/staging/ft1000/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_FT1000_USB)	+= ft1000-usb/
-obj-$(CONFIG_FT1000_PCMCIA)	+= ft1000-pcmcia/
-
diff --git a/drivers/staging/ft1000/TODO b/drivers/staging/ft1000/TODO
deleted file mode 100644
index 1d346bc4f443..000000000000
--- a/drivers/staging/ft1000/TODO
+++ /dev/null
@@ -1,9 +0,0 @@
-TODO:
-	- checkpatch.pl cleanups
-	- coding style
-	- sparse fixes
-	- adapt to latest usb and pcmcia api changes
-	- change firmware loading for usb driver to proper kernel method (request_firmware)
-
-Please send patches to Greg Kroah-Hartman <greg@kroah.com> and
-Cc: Marek Belisko <marek.belisko@gmail.com>
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/Makefile b/drivers/staging/ft1000/ft1000-pcmcia/Makefile
deleted file mode 100644
index 715de3f00e33..000000000000
--- a/drivers/staging/ft1000/ft1000-pcmcia/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_FT1000_PCMCIA) = ft1000_pcmcia.o
-ft1000_pcmcia-y := ft1000_hw.o ft1000_dnld.o ft1000_cs.o
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/boot.h b/drivers/staging/ft1000/ft1000-pcmcia/boot.h
deleted file mode 100644
index e4a698528520..000000000000
--- a/drivers/staging/ft1000/ft1000-pcmcia/boot.h
+++ /dev/null
@@ -1,158 +0,0 @@
-/*---------------------------------------------------------------------------
-  FT1000 driver for Flarion Flash OFDM NIC Device
-
-  Copyright (C) 2002 Flarion Technologies, All rights reserved.
-
-  This program is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by the Free
-  Software Foundation; either version 2 of the License, or (at your option) any
-  later version. This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-  more details. You should have received a copy of the GNU General Public
-  License along with this program; if not, write to the
-  Free Software Foundation, Inc., 59 Temple Place -
-  Suite 330, Boston, MA 02111-1307, USA.
-  ---------------------------------------------------------------------------
-
-  File:         boot.h
-
-  Description:    boatloader
-
-  History:
-  1/11/05    Whc                Ported to Linux.
-
-  ---------------------------------------------------------------------------*/
-#ifndef _BOOTH_
-#define _BOOTH_
-
-/* Official bootloader */
-static unsigned char bootimage[] = {
-	0x00, 0x00, 0x01, 0x5E, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x02, 0xD7,
-	0x00, 0x00, 0x01, 0x5E, 0x46, 0xB3,
-	0xE6, 0x02, 0x00, 0x98, 0xE6, 0x8C,
-	0x00, 0x98, 0xFB, 0x92, 0xFF, 0xFF,
-	0x98, 0xFB, 0x94, 0xFF, 0xFF, 0x98,
-	0xFB, 0x06, 0x08, 0x00, 0x98, 0xFB,
-	0x96, 0x84, 0x00, 0x98, 0xFB, 0x08,
-	0x1C, 0x00, 0x98, 0xFB, 0x51, 0x25,
-	0x10, 0x1C, 0x00, 0xE6, 0x51, 0x01,
-	0x07, 0xFD, 0x4C, 0xFF, 0x20, 0xF5,
-	0x51, 0x02, 0x20, 0x08, 0x00, 0x4C,
-	0xFF, 0x20, 0x3C, 0x00, 0xC0, 0x64,
-	0x98, 0xC0, 0x66, 0x98, 0xC0, 0x68,
-	0x98, 0xC0, 0x6A, 0x98, 0xC0, 0x6C,
-	0x98, 0x90, 0x08, 0x90, 0x09, 0x90,
-	0x0A, 0x90, 0x0B, 0x90, 0x0C, 0x90,
-	0x0D, 0x90, 0x0E, 0x90, 0x0F, 0x90,
-	0x04, 0x90, 0x06, 0xFB, 0x51, 0x22,
-	0x16, 0x08, 0x03, 0xFB, 0x51, 0x52,
-	0x16, 0x08, 0x04, 0xFB, 0x51, 0x24,
-	0x2B, 0x08, 0x06, 0xFB, 0x51, 0x54,
-	0x2B, 0x08, 0x07, 0xFB, 0x51, 0x24,
-	0x2B, 0x08, 0x09, 0xFB, 0x51, 0x54,
-	0x2B, 0x08, 0x0A, 0xFB, 0x51, 0x12,
-	0x16, 0x08, 0x0C, 0xFB, 0x51, 0x52,
-	0x16, 0x08, 0x0D, 0x78, 0x00, 0x00,
-	0x00, 0x16, 0x00, 0x00, 0xEC, 0x31,
-	0xAE, 0x00, 0x00, 0x81, 0x4C, 0x0F,
-	0xE6, 0x43, 0xFF, 0xEC, 0x31, 0x4E,
-	0x00, 0x00, 0x91, 0xEC, 0x31, 0xAE,
-	0x00, 0x00, 0x91, 0x4C, 0x0F, 0xE6,
-	0x43, 0xFF, 0xEC, 0x31, 0x5E, 0x00,
-	0x00, 0xA1, 0xEB, 0x31, 0x08, 0x00,
-	0x00, 0xA6, 0xEB, 0x31, 0x08, 0x00,
-	0x00, 0xAC, 0x3C, 0x00, 0xEB, 0x31,
-	0x08, 0x00, 0x00, 0xA8, 0x76, 0xFE,
-	0xFE, 0x08, 0xEB, 0x31, 0x08, 0x20,
-	0x00, 0x00, 0x76, 0xFF, 0xFF, 0x18,
-	0xED, 0x31, 0x08, 0x20, 0x00, 0x00,
-	0x26, 0x10, 0x04, 0x10, 0xF5, 0x3C,
-	0x01, 0x3C, 0x00, 0x08, 0x01, 0x12,
-	0x3C, 0x11, 0x3C, 0x00, 0x08, 0x01,
-	0x0B, 0x08, 0x00, 0x6D, 0xEC, 0x31,
-	0xAE, 0x20, 0x00, 0x06, 0xED, 0x4D,
-	0x08, 0x00, 0x00, 0x67, 0x80, 0x6F,
-	0x00, 0x01, 0x0B, 0x6F, 0x00, 0x02,
-	0x2E, 0x76, 0xEE, 0x01, 0x48, 0x06,
-	0x01, 0x39, 0xED, 0x4D, 0x18, 0x00,
-	0x02, 0xED, 0x4D, 0x08, 0x00, 0x04,
-	0x14, 0x06, 0xA4, 0xED, 0x31, 0x22,
-	0x00, 0x00, 0xAC, 0x76, 0xEE, 0x07,
-	0x48, 0x6D, 0x22, 0x01, 0x1E, 0x08,
-	0x01, 0x58, 0xEB, 0x31, 0x08, 0x00,
-	0x00, 0xAC, 0x06, 0xFF, 0xBA, 0x3C,
-	0x00, 0xEB, 0x31, 0x08, 0x20, 0x00,
-	0x04, 0x3C, 0x30, 0xEB, 0x31, 0x08,
-	0x20, 0x00, 0x02, 0x3C, 0x10, 0xEB,
-	0x31, 0x08, 0x20, 0x00, 0x00, 0xED,
-	0x31, 0x08, 0x20, 0x00, 0x00, 0x04,
-	0x10, 0xF7, 0xED, 0x31, 0x08, 0x00,
-	0x00, 0xA2, 0x91, 0x00, 0x9C, 0x3C,
-	0x80, 0xEB, 0x31, 0x08, 0x20, 0x00,
-	0x04, 0x3C, 0x20, 0xEB, 0x31, 0x08,
-	0x20, 0x00, 0x02, 0x3C, 0x10, 0xEB,
-	0x31, 0x08, 0x20, 0x00, 0x00, 0xED,
-	0x31, 0x08, 0x20, 0x00, 0x00, 0x04,
-	0x10, 0xF7, 0xED, 0x31, 0x08, 0x20,
-	0x00, 0x04, 0x42, 0x10, 0x90, 0x08,
-	0xEC, 0x31, 0xAE, 0x20, 0x00, 0x06,
-	0xA4, 0x41, 0x08, 0x00, 0xB6, 0xED,
-	0x41, 0x28, 0x7D, 0xFF, 0xFF, 0x22,
-	0xB3, 0x40, 0x98, 0x2A, 0x32, 0xEB,
-	0x41, 0x28, 0xB4, 0x43, 0xFC, 0x05,
-	0xFF, 0xE6, 0xA0, 0x31, 0x20, 0x00,
-	0x06, 0xEB, 0x31, 0x08, 0x20, 0x00,
-	0x04, 0x3C, 0x20, 0xEB, 0x31, 0x08,
-	0x20, 0x00, 0x02, 0x3C, 0x10, 0xEB,
-	0x31, 0x08, 0x20, 0x00, 0x00, 0xED,
-	0x31, 0x08, 0x20, 0x00, 0x00, 0x04,
-	0x10, 0xF7, 0xED, 0x31, 0x08, 0x20,
-	0x00, 0x04, 0x42, 0x10, 0x90, 0x08,
-	0xEC, 0x31, 0xAE, 0x20, 0x00, 0x06,
-	0xA4, 0x41, 0x08, 0x00, 0x68, 0xED,
-	0x41, 0x28, 0x7D, 0xFF, 0xFF, 0x22,
-	0xB3, 0x40, 0x98, 0x2A, 0x32, 0xEB,
-	0x41, 0x28, 0xB4, 0x43, 0xFC, 0x05,
-	0xFF, 0xE6, 0x48, 0x04, 0xEB, 0x31,
-	0x08, 0x20, 0x00, 0x04, 0xEB, 0x31,
-	0x18, 0x20, 0x00, 0x02, 0x3C, 0x11,
-	0xEB, 0x31, 0x18, 0x20, 0x00, 0x00,
-	0xED, 0x31, 0x08, 0x20, 0x00, 0x00,
-	0x04, 0x10, 0xF7, 0xED, 0x31, 0x08,
-	0x20, 0x00, 0x02, 0x66, 0x00, 0x6F,
-	0x00, 0x01, 0x16, 0x76, 0xEE, 0x06,
-	0x48, 0x4A, 0x1E, 0x48, 0x04, 0xED,
-	0x31, 0x08, 0x20, 0x00, 0x04, 0xEB,
-	0x31, 0x08, 0x00, 0x00, 0xA4, 0x48,
-	0x04, 0xED, 0x31, 0x08, 0x20, 0x00,
-	0x04, 0xEB, 0x31, 0x08, 0x00, 0x00,
-	0xA2, 0x48, 0x04, 0x20, 0x20, 0x4A,
-	0x7C, 0x46, 0x82, 0x50, 0x05, 0x50,
-	0x15, 0xB5, 0x1E, 0x98, 0xED, 0x31,
-	0x08, 0x00, 0x00, 0xA8, 0x10, 0x47,
-	0x3B, 0x2C, 0x01, 0xDB, 0x40, 0x11,
-	0x98, 0xC1, 0x1E, 0x98, 0x10, 0x07,
-	0x30, 0xF9, 0x40, 0x07, 0x18, 0x98,
-	0x2A, 0x10, 0xEB, 0x31, 0x08, 0x00,
-	0x00, 0xA8, 0xA4, 0x1E, 0x98, 0xBB,
-	0x1E, 0x98, 0x50, 0x14, 0x50, 0x04,
-	0x46, 0x83, 0x48, 0x04, 0x02, 0x01,
-	0x00, 0x50, 0x05, 0x50, 0x15, 0x10,
-	0x87, 0x3F, 0x90, 0x2B, 0x18, 0x01,
-	0x00, 0xC0, 0x31, 0x00, 0x00, 0xAE,
-	0xDF, 0x41, 0x00, 0x08, 0x00, 0x1A,
-	0x42, 0x11, 0x67, 0x01, 0xDF, 0x41,
-	0x02, 0x08, 0x00, 0x10, 0x42, 0x11,
-	0x62, 0x01, 0xB4, 0x43, 0x4A, 0x68,
-	0x50, 0x14, 0x50, 0x04, 0x24, 0x10,
-	0x48, 0x04, 0xF2, 0x31, 0x00, 0x01,
-	0x00, 0x00, 0xAE, 0xF6, 0x31, 0x00,
-	0x01, 0x00, 0x00, 0xAE, 0x62, 0xE4,
-	0xE5, 0x61, 0x04, 0x48, 0x04, 0xE5,
-	0x63, 0x05, 0x48, 0x04, 0x20, 0x20,
-	0x00, 0x00, 0x00, 0x00
-};
-
-#endif
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000.h b/drivers/staging/ft1000/ft1000-pcmcia/ft1000.h
deleted file mode 100644
index e1861cf5de73..000000000000
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*---------------------------------------------------------------------------
-  FT1000 driver for Flarion Flash OFDM NIC Device
-
-  Copyright (C) 2002 Flarion Technologies, All rights reserved.
-
-  This program is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by the Free
-  Software Foundation; either version 2 of the License, or (at your option) any
-  later version. This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-  more details. You should have received a copy of the GNU General Public
-  License along with this program; if not, write to the
-  Free Software Foundation, Inc., 59 Temple Place -
-  Suite 330, Boston, MA 02111-1307, USA.
-  ---------------------------------------------------------------------------
-  Description:    Common structures and defines
-  ---------------------------------------------------------------------------*/
-#ifndef _FT1000H_
-#define _FT1000H_
-
-#include "../ft1000.h"
-
-#define FT1000_DRV_VER 0x01010300
-
-#define FT1000_DPRAM_BASE	0x0000	/* Dual Port RAM starting offset */
-
-/*
- * Maximum number of occurrence of pseudo header errors before resetting PC
- * Card.
- */
-#define MAX_PH_ERR	300
-
-#define SUCCESS	0x00
-#define FAILURE	0x01
-
-struct ft1000_pcmcia {
-	int PktIntfErr;
-	u16 packetseqnum;
-	void *link;
-};
-
-struct pcmcia_device;
-struct net_device;
-struct net_device *init_ft1000_card(struct pcmcia_device *link,
-				    void *ft1000_reset);
-void stop_ft1000_card(struct net_device *dev);
-int card_download(struct net_device *dev, const u8 *pFileStart,
-		  size_t FileLength);
-
-u16 ft1000_read_dpram(struct net_device *dev, int offset);
-void card_bootload(struct net_device *dev);
-u16 ft1000_read_dpram_mag_16(struct net_device *dev, int offset, int Index);
-u32 ft1000_read_dpram_mag_32(struct net_device *dev, int offset);
-void ft1000_write_dpram_mag_32(struct net_device *dev, int offset, u32 value);
-
-/* Read the value of a given ASIC register. */
-static inline u16 ft1000_read_reg(struct net_device *dev, u16 offset)
-{
-	return inw(dev->base_addr + offset);
-}
-
-/* Set the value of a given ASIC register. */
-static inline void ft1000_write_reg(struct net_device *dev, u16 offset,
-				    u16 value)
-{
-	outw(value, dev->base_addr + offset);
-}
-
-#endif
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000.img b/drivers/staging/ft1000/ft1000-pcmcia/ft1000.img
deleted file mode 100644
index aad3c80d07c8..000000000000
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000.img
+++ /dev/null
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c
deleted file mode 100644
index e5cc5bedf031..000000000000
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_cs.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*---------------------------------------------------------------------------
-  FT1000 driver for Flarion Flash OFDM NIC Device
-
-  Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
-  Copyright (C) 2002 Flarion Technologies, All rights reserved.
-  Copyright (C) 2006 Patrik Ostrihon, All rights reserved.
-  Copyright (C) 2006 ProWeb Consulting, a.s, All rights reserved.
-
-  The initial developer of the original code is David A. Hinds
-  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds.
-
-  This file was modified to support the Flarion Flash OFDM NIC Device
-  by Wai Chan (w.chan@flarion.com).
-
-  Port for kernel 2.6 created by Patrik Ostrihon (patrik.ostrihon@pwc.sk)
-
-  This program is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by the Free
-  Software Foundation; either version 2 of the License, or (at your option) any
-  later version. This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-  more details. You should have received a copy of the GNU General Public
-  License along with this program; if not, write to the
-  Free Software Foundation, Inc., 59 Temple Place -
-  Suite 330, Boston, MA 02111-1307, USA.
-  -----------------------------------------------------------------------------*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-
-/*====================================================================*/
-
-MODULE_AUTHOR("Wai Chan");
-MODULE_DESCRIPTION("FT1000 PCMCIA driver");
-MODULE_LICENSE("GPL");
-
-/*====================================================================*/
-
-static int ft1000_config(struct pcmcia_device *link);
-static void ft1000_detach(struct pcmcia_device *link);
-static int ft1000_attach(struct pcmcia_device *link);
-
-#include "ft1000.h"
-
-/*====================================================================*/
-
-static void ft1000_reset(struct pcmcia_device *link)
-{
-	pcmcia_reset_card(link->socket);
-}
-
-static int ft1000_attach(struct pcmcia_device *link)
-{
-	link->priv = NULL;
-	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
-
-	return ft1000_config(link);
-}
-
-static void ft1000_detach(struct pcmcia_device *link)
-{
-	struct net_device *dev = link->priv;
-
-	if (dev)
-		stop_ft1000_card(dev);
-
-	pcmcia_disable_device(link);
-	free_netdev(dev);
-}
-
-static int ft1000_confcheck(struct pcmcia_device *link, void *priv_data)
-{
-	return pcmcia_request_io(link);
-}
-
-/*======================================================================
-
-  ft1000_config() is scheduled to run after a CARD_INSERTION event
-  is received, to configure the PCMCIA socket, and to make the
-  device available to the system.
-
-  ======================================================================*/
-
-static int ft1000_config(struct pcmcia_device *link)
-{
-	int ret;
-
-	dev_dbg(&link->dev, "ft1000_cs: ft1000_config(0x%p)\n", link);
-
-	/* setup IO window */
-	ret = pcmcia_loop_config(link, ft1000_confcheck, NULL);
-	if (ret) {
-		dev_err(&link->dev, "Could not configure pcmcia\n");
-		return -ENODEV;
-	}
-
-	/* configure device */
-	ret = pcmcia_enable_device(link);
-	if (ret) {
-		dev_err(&link->dev, "Could not enable pcmcia\n");
-		goto failed;
-	}
-
-	link->priv = init_ft1000_card(link, &ft1000_reset);
-	if (!link->priv) {
-		dev_err(&link->dev, "Could not register as network device\n");
-		goto failed;
-	}
-
-	/* Finally, report what we've done */
-
-	return 0;
-failed:
-	pcmcia_disable_device(link);
-	return -ENODEV;
-}
-
-static int ft1000_suspend(struct pcmcia_device *link)
-{
-	struct net_device *dev = link->priv;
-
-	if (link->open)
-		netif_device_detach(dev);
-	return 0;
-}
-
-static int ft1000_resume(struct pcmcia_device *link)
-{
-	return 0;
-}
-
-/*====================================================================*/
-
-static const struct pcmcia_device_id ft1000_ids[] = {
-	PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x0100),
-	PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1000),
-	PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1300),
-	PCMCIA_DEVICE_NULL,
-};
-
-MODULE_DEVICE_TABLE(pcmcia, ft1000_ids);
-
-static struct pcmcia_driver ft1000_cs_driver = {
-	.owner		= THIS_MODULE,
-	.name		= "ft1000_cs",
-	.probe		= ft1000_attach,
-	.remove		= ft1000_detach,
-	.id_table	= ft1000_ids,
-	.suspend	= ft1000_suspend,
-	.resume		= ft1000_resume,
-};
-
-module_pcmcia_driver(ft1000_cs_driver);
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
deleted file mode 100644
index 83683e9a1451..000000000000
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
+++ /dev/null
@@ -1,769 +0,0 @@
-/*---------------------------------------------------------------------------
-  FT1000 driver for Flarion Flash OFDM NIC Device
-
-  Copyright (C) 2002 Flarion Technologies, All rights reserved.
-
-  This program is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by the Free
-  Software Foundation; either version 2 of the License, or (at your option) any
-  later version. This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-  more details. You should have received a copy of the GNU General Public
-  License along with this program; if not, write to the
-  Free Software Foundation, Inc., 59 Temple Place -
-  Suite 330, Boston, MA 02111-1307, USA.
-  --------------------------------------------------------------------------
-
-  Description: This module will handshake with the DSP bootloader to
-  download the DSP runtime image.
-
-  ---------------------------------------------------------------------------*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#define __KERNEL_SYSCALLS__
-
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/unistd.h>
-#include <linux/netdevice.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/uaccess.h>
-#include <linux/vmalloc.h>
-
-#include "ft1000.h"
-#include "boot.h"
-
-#define  MAX_DSP_WAIT_LOOPS      100
-#define  DSP_WAIT_SLEEP_TIME     1	/* 1 millisecond */
-
-#define  MAX_LENGTH              0x7f0
-
-#define  DWNLD_MAG_HANDSHAKE_LOC 0x00
-#define  DWNLD_MAG_TYPE_LOC      0x01
-#define  DWNLD_MAG_SIZE_LOC      0x02
-#define  DWNLD_MAG_PS_HDR_LOC    0x03
-
-#define  DWNLD_HANDSHAKE_LOC     0x02
-#define  DWNLD_TYPE_LOC          0x04
-#define  DWNLD_SIZE_MSW_LOC      0x06
-#define  DWNLD_SIZE_LSW_LOC      0x08
-#define  DWNLD_PS_HDR_LOC        0x0A
-
-#define  HANDSHAKE_TIMEOUT_VALUE 0xF1F1
-#define  HANDSHAKE_RESET_VALUE   0xFEFE	/* When DSP requests startover */
-#define  HANDSHAKE_DSP_BL_READY  0xFEFE	/* At start DSP writes this when bootloader ready */
-#define  HANDSHAKE_DRIVER_READY  0xFFFF	/* Driver writes after receiving 0xFEFE */
-#define  HANDSHAKE_SEND_DATA     0x0000	/* DSP writes this when ready for more data */
-
-#define  HANDSHAKE_REQUEST       0x0001	/* Request from DSP */
-#define  HANDSHAKE_RESPONSE      0x0000	/* Satisfied DSP request */
-
-#define  REQUEST_CODE_LENGTH     0x0000
-#define  REQUEST_RUN_ADDRESS     0x0001
-#define  REQUEST_CODE_SEGMENT    0x0002	/* In WORD count */
-#define  REQUEST_DONE_BL         0x0003
-#define  REQUEST_DONE_CL         0x0004
-#define  REQUEST_VERSION_INFO    0x0005
-#define  REQUEST_CODE_BY_VERSION 0x0006
-#define  REQUEST_MAILBOX_DATA    0x0007
-#define  REQUEST_FILE_CHECKSUM   0x0008
-
-#define  STATE_START_DWNLD       0x01
-#define  STATE_BOOT_DWNLD        0x02
-#define  STATE_CODE_DWNLD        0x03
-#define  STATE_DONE_DWNLD        0x04
-#define  STATE_SECTION_PROV      0x05
-#define  STATE_DONE_PROV         0x06
-#define  STATE_DONE_FILE         0x07
-
-u16 get_handshake(struct net_device *dev, u16 expected_value);
-void put_handshake(struct net_device *dev, u16 handshake_value);
-u16 get_request_type(struct net_device *dev);
-long get_request_value(struct net_device *dev);
-void put_request_value(struct net_device *dev, long lvalue);
-u16 hdr_checksum(struct pseudo_hdr *pHdr);
-
-struct dsp_file_hdr {
-	u32  version_id;	/* Version ID of this image format. */
-	u32  package_id;	/* Package ID of code release. */
-	u32  build_date;	/* Date/time stamp when file was built. */
-	u32  commands_offset;	/* Offset to attached commands in Pseudo Hdr format. */
-	u32  loader_offset;	/* Offset to bootloader code. */
-	u32  loader_code_address;	/* Start address of bootloader. */
-	u32  loader_code_end;	/* Where bootloader code ends. */
-	u32  loader_code_size;
-	u32  version_data_offset;	/* Offset were scrambled version data begins. */
-	u32  version_data_size;	/* Size, in words, of scrambled version data. */
-	u32  nDspImages;	/* Number of DSP images in file. */
-} __packed;
-
-struct dsp_image_info {
-	u32  coff_date;		/* Date/time when DSP Coff image was built. */
-	u32  begin_offset;	/* Offset in file where image begins. */
-	u32  end_offset;	/* Offset in file where image begins. */
-	u32  run_address;	/* On chip Start address of DSP code. */
-	u32  image_size;	/* Size of image. */
-	u32  version;		/* Embedded version # of DSP code. */
-	unsigned short checksum;	/* Dsp File checksum */
-	unsigned short pad1;
-} __packed;
-
-void card_bootload(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	unsigned long flags;
-	u32 *pdata;
-	u32 size;
-	u32 i;
-	u32 templong;
-
-	netdev_dbg(dev, "card_bootload is called\n");
-
-	pdata = (u32 *)bootimage;
-	size = sizeof(bootimage);
-
-	/* check for odd word */
-	if (size & 0x0003)
-		size += 4;
-
-	/* Provide mutual exclusive access while reading ASIC registers. */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-
-	/* need to set i/o base address initially and hardware will autoincrement */
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, FT1000_DPRAM_BASE);
-	/* write bytes */
-	for (i = 0; i < (size >> 2); i++) {
-		templong = *pdata++;
-		outl(templong, dev->base_addr + FT1000_REG_MAG_DPDATA);
-	}
-
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-}
-
-u16 get_handshake(struct net_device *dev, u16 expected_value)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 handshake;
-	u32 tempx;
-	int loopcnt;
-
-	loopcnt = 0;
-	while (loopcnt < MAX_DSP_WAIT_LOOPS) {
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 DWNLD_HANDSHAKE_LOC);
-
-			handshake = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-		} else {
-			tempx =
-				ntohl(ft1000_read_dpram_mag_32
-				      (dev, DWNLD_MAG_HANDSHAKE_LOC));
-			handshake = (u16)tempx;
-		}
-
-		if ((handshake == expected_value)
-		    || (handshake == HANDSHAKE_RESET_VALUE)) {
-			return handshake;
-		}
-		loopcnt++;
-		mdelay(DSP_WAIT_SLEEP_TIME);
-
-	}
-
-	return HANDSHAKE_TIMEOUT_VALUE;
-
-}
-
-void put_handshake(struct net_device *dev, u16 handshake_value)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u32 tempx;
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 DWNLD_HANDSHAKE_LOC);
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA, handshake_value);	/* Handshake */
-	} else {
-		tempx = (u32)handshake_value;
-		tempx = ntohl(tempx);
-		ft1000_write_dpram_mag_32(dev, DWNLD_MAG_HANDSHAKE_LOC, tempx);	/* Handshake */
-	}
-}
-
-u16 get_request_type(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 request_type;
-	u32 tempx;
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, DWNLD_TYPE_LOC);
-		request_type = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-	} else {
-		tempx = ft1000_read_dpram_mag_32(dev, DWNLD_MAG_TYPE_LOC);
-		tempx = ntohl(tempx);
-		request_type = (u16)tempx;
-	}
-
-	return request_type;
-
-}
-
-long get_request_value(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	long value;
-	u16 w_val;
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 DWNLD_SIZE_MSW_LOC);
-
-		w_val = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-
-		value = (long)(w_val << 16);
-
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 DWNLD_SIZE_LSW_LOC);
-
-		w_val = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-
-		value = (long)(value | w_val);
-	} else {
-		value = ft1000_read_dpram_mag_32(dev, DWNLD_MAG_SIZE_LOC);
-		value = ntohl(value);
-	}
-
-	return value;
-
-}
-
-void put_request_value(struct net_device *dev, long lvalue)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 size;
-	u32 tempx;
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		size = (u16) (lvalue >> 16);
-
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 DWNLD_SIZE_MSW_LOC);
-
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA, size);
-
-		size = (u16) (lvalue);
-
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 DWNLD_SIZE_LSW_LOC);
-
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA, size);
-	} else {
-		tempx = ntohl(lvalue);
-		ft1000_write_dpram_mag_32(dev, DWNLD_MAG_SIZE_LOC, tempx);	/* Handshake */
-	}
-
-}
-
-u16 hdr_checksum(struct pseudo_hdr *pHdr)
-{
-	u16 *usPtr = (u16 *)pHdr;
-	u16 chksum;
-
-	chksum = (((((usPtr[0] ^ usPtr[1]) ^ usPtr[2]) ^ usPtr[3]) ^
-		    usPtr[4]) ^ usPtr[5]) ^ usPtr[6];
-
-	return chksum;
-}
-
-int card_download(struct net_device *dev, const u8 *pFileStart,
-		  size_t FileLength)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	int Status = SUCCESS;
-	u32 uiState;
-	u16 handshake;
-	struct pseudo_hdr *pHdr;
-	u16 usHdrLength;
-	long word_length;
-	u16 request;
-	u16 temp;
-	struct prov_record *pprov_record;
-	u8 *pbuffer;
-	struct dsp_file_hdr *pFileHdr5;
-	struct dsp_image_info *pDspImageInfoV6 = NULL;
-	long requested_version;
-	bool bGoodVersion = false;
-	struct drv_msg *pMailBoxData;
-	u16 *pUsData = NULL;
-	u16 *pUsFile = NULL;
-	u8 *pUcFile = NULL;
-	u8 *pBootEnd = NULL;
-	u8 *pCodeEnd = NULL;
-	int imageN;
-	long file_version;
-	long loader_code_address = 0;
-	long loader_code_size = 0;
-	long run_address = 0;
-	long run_size = 0;
-	unsigned long flags;
-	unsigned long templong;
-	unsigned long image_chksum = 0;
-
-	file_version = *(long *)pFileStart;
-	if (file_version != 6) {
-		pr_err("unsupported firmware version %ld\n", file_version);
-		Status = FAILURE;
-	}
-
-	uiState = STATE_START_DWNLD;
-
-	pFileHdr5 = (struct dsp_file_hdr *)pFileStart;
-
-	pUsFile = (u16 *) ((long)pFileStart + pFileHdr5->loader_offset);
-	pUcFile = (u8 *) ((long)pFileStart + pFileHdr5->loader_offset);
-	pBootEnd = (u8 *) ((long)pFileStart + pFileHdr5->loader_code_end);
-	loader_code_address = pFileHdr5->loader_code_address;
-	loader_code_size = pFileHdr5->loader_code_size;
-	bGoodVersion = false;
-
-	while ((Status == SUCCESS) && (uiState != STATE_DONE_FILE)) {
-
-		switch (uiState) {
-		case STATE_START_DWNLD:
-
-			handshake = get_handshake(dev, HANDSHAKE_DSP_BL_READY);
-
-			if (handshake == HANDSHAKE_DSP_BL_READY)
-				put_handshake(dev, HANDSHAKE_DRIVER_READY);
-			else
-				Status = FAILURE;
-
-			uiState = STATE_BOOT_DWNLD;
-
-			break;
-
-		case STATE_BOOT_DWNLD:
-			handshake = get_handshake(dev, HANDSHAKE_REQUEST);
-			if (handshake == HANDSHAKE_REQUEST) {
-				/*
-				 * Get type associated with the request.
-				 */
-				request = get_request_type(dev);
-				switch (request) {
-				case REQUEST_RUN_ADDRESS:
-					put_request_value(dev,
-							  loader_code_address);
-					break;
-				case REQUEST_CODE_LENGTH:
-					put_request_value(dev,
-							  loader_code_size);
-					break;
-				case REQUEST_DONE_BL:
-					/* Reposition ptrs to beginning of code section */
-					pUsFile = (u16 *) ((long)pBootEnd);
-					pUcFile = (u8 *) ((long)pBootEnd);
-					uiState = STATE_CODE_DWNLD;
-					break;
-				case REQUEST_CODE_SEGMENT:
-					word_length = get_request_value(dev);
-					if (word_length > MAX_LENGTH) {
-						Status = FAILURE;
-						break;
-					}
-					if ((word_length * 2 + (long)pUcFile) >
-					    (long)pBootEnd) {
-						/*
-						 * Error, beyond boot code range.
-						 */
-						Status = FAILURE;
-						break;
-					}
-					/* Provide mutual exclusive access while reading ASIC registers. */
-					spin_lock_irqsave(&info->dpram_lock,
-							  flags);
-					/*
-					 * Position ASIC DPRAM auto-increment pointer.
-					 */
-					outw(DWNLD_MAG_PS_HDR_LOC,
-					     dev->base_addr +
-					     FT1000_REG_DPRAM_ADDR);
-					if (word_length & 0x01)
-						word_length++;
-					word_length = word_length / 2;
-
-					for (; word_length > 0; word_length--) {	/* In words */
-						templong = *pUsFile++;
-						templong |=
-							(*pUsFile++ << 16);
-						pUcFile += 4;
-						outl(templong,
-						     dev->base_addr +
-						     FT1000_REG_MAG_DPDATAL);
-					}
-					spin_unlock_irqrestore(&info->
-							       dpram_lock,
-							       flags);
-					break;
-				default:
-					Status = FAILURE;
-					break;
-				}
-				put_handshake(dev, HANDSHAKE_RESPONSE);
-			} else {
-				Status = FAILURE;
-			}
-
-			break;
-
-		case STATE_CODE_DWNLD:
-			handshake = get_handshake(dev, HANDSHAKE_REQUEST);
-			if (handshake == HANDSHAKE_REQUEST) {
-				/*
-				 * Get type associated with the request.
-				 */
-				request = get_request_type(dev);
-				switch (request) {
-				case REQUEST_FILE_CHECKSUM:
-					netdev_dbg(dev,
-						   "ft1000_dnld: REQUEST_FOR_CHECKSUM\n");
-					put_request_value(dev, image_chksum);
-					break;
-				case REQUEST_RUN_ADDRESS:
-					if (bGoodVersion) {
-						put_request_value(dev,
-								  run_address);
-					} else {
-						Status = FAILURE;
-						break;
-					}
-					break;
-				case REQUEST_CODE_LENGTH:
-					if (bGoodVersion) {
-						put_request_value(dev,
-								  run_size);
-					} else {
-						Status = FAILURE;
-						break;
-					}
-					break;
-				case REQUEST_DONE_CL:
-					/* Reposition ptrs to beginning of provisioning section */
-					pUsFile = (u16 *) ((long)pFileStart + pFileHdr5->commands_offset);
-					pUcFile = (u8 *) ((long)pFileStart + pFileHdr5->commands_offset);
-					uiState = STATE_DONE_DWNLD;
-					break;
-				case REQUEST_CODE_SEGMENT:
-					if (!bGoodVersion) {
-						Status = FAILURE;
-						break;
-					}
-					word_length = get_request_value(dev);
-					if (word_length > MAX_LENGTH) {
-						Status = FAILURE;
-						break;
-					}
-					if ((word_length * 2 + (long)pUcFile) >
-					    (long)pCodeEnd) {
-						/*
-						 * Error, beyond boot code range.
-						 */
-						Status = FAILURE;
-						break;
-					}
-					/*
-					 * Position ASIC DPRAM auto-increment pointer.
-					 */
-					outw(DWNLD_MAG_PS_HDR_LOC,
-					     dev->base_addr +
-					     FT1000_REG_DPRAM_ADDR);
-					if (word_length & 0x01)
-						word_length++;
-					word_length = word_length / 2;
-
-					for (; word_length > 0; word_length--) {	/* In words */
-						templong = *pUsFile++;
-						templong |=
-							(*pUsFile++ << 16);
-						pUcFile += 4;
-						outl(templong,
-						     dev->base_addr +
-						     FT1000_REG_MAG_DPDATAL);
-					}
-					break;
-
-				case REQUEST_MAILBOX_DATA:
-					/* Convert length from byte count to word count. Make sure we round up. */
-					word_length =
-						(long)(info->DSPInfoBlklen + 1) / 2;
-					put_request_value(dev, word_length);
-					pMailBoxData =
-						(struct drv_msg *)&info->DSPInfoBlk[0];
-					pUsData =
-						(u16 *)&pMailBoxData->data[0];
-					/* Provide mutual exclusive access while reading ASIC registers. */
-					spin_lock_irqsave(&info->dpram_lock,
-							  flags);
-					if (file_version == 5) {
-						/*
-						 * Position ASIC DPRAM auto-increment pointer.
-						 */
-						ft1000_write_reg(dev,
-								 FT1000_REG_DPRAM_ADDR,
-								 DWNLD_PS_HDR_LOC);
-
-						for (; word_length > 0; word_length--) {	/* In words */
-							temp = ntohs(*pUsData);
-							ft1000_write_reg(dev,
-									 FT1000_REG_DPRAM_DATA,
-									 temp);
-							pUsData++;
-						}
-					} else {
-						/*
-						 * Position ASIC DPRAM auto-increment pointer.
-						 */
-						outw(DWNLD_MAG_PS_HDR_LOC,
-						     dev->base_addr +
-						     FT1000_REG_DPRAM_ADDR);
-						if (word_length & 0x01)
-							word_length++;
-
-						word_length = word_length / 2;
-
-						for (; word_length > 0; word_length--) {	/* In words */
-							templong = *pUsData++;
-							templong |=
-								(*pUsData++ << 16);
-							outl(templong,
-							     dev->base_addr +
-							     FT1000_REG_MAG_DPDATAL);
-						}
-					}
-					spin_unlock_irqrestore(&info->
-							       dpram_lock,
-							       flags);
-					break;
-
-				case REQUEST_VERSION_INFO:
-					word_length =
-						pFileHdr5->version_data_size;
-					put_request_value(dev, word_length);
-					pUsFile =
-						(u16 *) ((long)pFileStart +
-							 pFileHdr5->
-							 version_data_offset);
-					/* Provide mutual exclusive access while reading ASIC registers. */
-					spin_lock_irqsave(&info->dpram_lock,
-							  flags);
-					/*
-					 * Position ASIC DPRAM auto-increment pointer.
-					 */
-					outw(DWNLD_MAG_PS_HDR_LOC,
-					     dev->base_addr +
-					     FT1000_REG_DPRAM_ADDR);
-					if (word_length & 0x01)
-						word_length++;
-					word_length = word_length / 2;
-
-					for (; word_length > 0; word_length--) {	/* In words */
-						templong =
-							ntohs(*pUsFile++);
-						temp =
-							ntohs(*pUsFile++);
-						templong |=
-							(temp << 16);
-						outl(templong,
-						     dev->base_addr +
-						     FT1000_REG_MAG_DPDATAL);
-					}
-					spin_unlock_irqrestore(&info->
-							       dpram_lock,
-							       flags);
-					break;
-
-				case REQUEST_CODE_BY_VERSION:
-					bGoodVersion = false;
-					requested_version =
-						get_request_value(dev);
-					pDspImageInfoV6 =
-						(struct dsp_image_info *) ((long)
-									   pFileStart
-									   +
-									   sizeof
-									   (struct dsp_file_hdr));
-					for (imageN = 0;
-					     imageN <
-						     pFileHdr5->nDspImages;
-					     imageN++) {
-						temp = (u16)
-							(pDspImageInfoV6->
-							 version);
-						templong = temp;
-						temp = (u16)
-							(pDspImageInfoV6->
-							 version >> 16);
-						templong |=
-							(temp << 16);
-						if (templong ==
-						    requested_version) {
-							bGoodVersion =
-								true;
-							pUsFile =
-								(u16
-								 *) ((long)
-								     pFileStart
-								     +
-								     pDspImageInfoV6->
-								     begin_offset);
-							pUcFile =
-								(u8
-								 *) ((long)
-								     pFileStart
-								     +
-								     pDspImageInfoV6->
-								     begin_offset);
-							pCodeEnd =
-								(u8
-								 *) ((long)
-								     pFileStart
-								     +
-								     pDspImageInfoV6->
-								     end_offset);
-							run_address =
-								pDspImageInfoV6->
-								run_address;
-							run_size =
-								pDspImageInfoV6->
-								image_size;
-							image_chksum =
-								(u32)
-								pDspImageInfoV6->
-								checksum;
-							netdev_dbg(dev,
-								   "ft1000_dnld: image_chksum = 0x%8x\n",
-								   (unsigned
-								    int)
-								   image_chksum);
-							break;
-						}
-						pDspImageInfoV6++;
-					}
-					if (!bGoodVersion) {
-						/*
-						 * Error, beyond boot code range.
-						 */
-						Status = FAILURE;
-						break;
-					}
-					break;
-
-				default:
-					Status = FAILURE;
-					break;
-				}
-				put_handshake(dev, HANDSHAKE_RESPONSE);
-			} else {
-				Status = FAILURE;
-			}
-
-			break;
-
-		case STATE_DONE_DWNLD:
-			if (((unsigned long)(pUcFile) - (unsigned long) pFileStart) >=
-			    (unsigned long)FileLength) {
-				uiState = STATE_DONE_FILE;
-				break;
-			}
-
-			pHdr = (struct pseudo_hdr *)pUsFile;
-
-			if (pHdr->portdest == 0x80	/* DspOAM */
-			    && (pHdr->portsrc == 0x00	/* Driver */
-				|| pHdr->portsrc == 0x10 /* FMM */)) {
-				uiState = STATE_SECTION_PROV;
-			} else {
-				netdev_dbg(dev,
-					   "Download error: Bad Port IDs in Pseudo Record\n");
-				netdev_dbg(dev, "\t Port Source = 0x%2.2x\n",
-					   pHdr->portsrc);
-				netdev_dbg(dev, "\t Port Destination = 0x%2.2x\n",
-					   pHdr->portdest);
-				Status = FAILURE;
-			}
-
-			break;
-
-		case STATE_SECTION_PROV:
-
-			pHdr = (struct pseudo_hdr *)pUcFile;
-
-			if (pHdr->checksum == hdr_checksum(pHdr)) {
-				if (pHdr->portdest != 0x80 /* Dsp OAM */) {
-					uiState = STATE_DONE_PROV;
-					break;
-				}
-				usHdrLength = ntohs(pHdr->length);	/* Byte length for PROV records */
-
-				/* Get buffer for provisioning data */
-				pbuffer =
-					kmalloc(usHdrLength + sizeof(struct pseudo_hdr),
-						GFP_ATOMIC);
-				if (pbuffer) {
-					memcpy(pbuffer, pUcFile,
-					       (u32) (usHdrLength +
-						      sizeof(struct pseudo_hdr)));
-					/* link provisioning data */
-					pprov_record =
-						kmalloc(sizeof(struct prov_record),
-							GFP_ATOMIC);
-					if (pprov_record) {
-						pprov_record->pprov_data =
-							pbuffer;
-						list_add_tail(&pprov_record->
-							      list,
-							      &info->prov_list);
-						/* Move to next entry if available */
-						pUcFile =
-							(u8 *)((unsigned long) pUcFile +
-							       (unsigned long) ((usHdrLength + 1) & 0xFFFFFFFE) + sizeof(struct pseudo_hdr));
-						if ((unsigned long) (pUcFile) -
-						    (unsigned long) (pFileStart) >=
-						    (unsigned long)FileLength) {
-							uiState =
-								STATE_DONE_FILE;
-						}
-					} else {
-						kfree(pbuffer);
-						Status = FAILURE;
-					}
-				} else {
-					Status = FAILURE;
-				}
-			} else {
-				/* Checksum did not compute */
-				Status = FAILURE;
-			}
-
-			break;
-
-		case STATE_DONE_PROV:
-			uiState = STATE_DONE_FILE;
-			break;
-
-		default:
-			Status = FAILURE;
-			break;
-		}		/* End Switch */
-
-	}			/* End while */
-
-	return Status;
-
-}
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
deleted file mode 100644
index eecfa377054d..000000000000
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c
+++ /dev/null
@@ -1,2068 +0,0 @@
-/*---------------------------------------------------------------------------
-  FT1000 driver for Flarion Flash OFDM NIC Device
-
-  Copyright (C) 2002 Flarion Technologies, All rights reserved.
-  Copyright (C) 2006 Patrik Ostrihon, All rights reserved.
-  Copyright (C) 2006 ProWeb Consulting, a.s, All rights reserved.
-
-  This program is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by the Free
-  Software Foundation; either version 2 of the License, or (at your option) any
-  later version. This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-  more details. You should have received a copy of the GNU General Public
-  License along with this program; if not, write to the
-  Free Software Foundation, Inc., 59 Temple Place -
-  Suite 330, Boston, MA 02111-1307, USA.
-  -------------------------------------------------------------------------*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/in.h>
-#include <linux/io.h>
-#include <linux/bitops.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/ioport.h>
-#include <linux/wait.h>
-#include <linux/vmalloc.h>
-
-#include <linux/firmware.h>
-#include <linux/ethtool.h>
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/cisreg.h>
-#include <pcmcia/ds.h>
-
-#include <linux/delay.h>
-#include "ft1000.h"
-
-static const struct firmware *fw_entry;
-
-static void ft1000_hbchk(u_long data);
-static struct timer_list poll_timer = {
-	.function = ft1000_hbchk
-};
-
-static u16 cmdbuffer[1024];
-static u8 tempbuffer[1600];
-static u8 ft1000_card_present;
-static u8 flarion_ft1000_cnt;
-
-static irqreturn_t ft1000_interrupt(int irq, void *dev_id);
-static void ft1000_enable_interrupts(struct net_device *dev);
-static void ft1000_disable_interrupts(struct net_device *dev);
-
-/* new kernel */
-MODULE_AUTHOR("");
-MODULE_DESCRIPTION("Support for Flarion Flash OFDM NIC Device. Support for PCMCIA when used with ft1000_cs.");
-MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("FT1000");
-
-#define MAX_RCV_LOOP   100
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_read_fifo_len
-  Description: This function will read the ASIC Uplink FIFO status register
-  which will return the number of bytes remaining in the Uplink FIFO.
-  Sixteen bytes are subtracted to make sure that the ASIC does not
-  reach its threshold.
-  Input:
-  dev    - network device structure
-  Output:
-  value  - number of bytes available in the ASIC Uplink FIFO.
-
-  -------------------------------------------------------------------------*/
-static inline u16 ft1000_read_fifo_len(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-
-	if (info->AsicID == ELECTRABUZZ_ID)
-		return (ft1000_read_reg(dev, FT1000_REG_UFIFO_STAT) - 16);
-	else
-		return (ft1000_read_reg(dev, FT1000_REG_MAG_UFSR) - 16);
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_read_dpram
-  Description: This function will read the specific area of dpram
-  (Electrabuzz ASIC only)
-  Input:
-  dev    - device structure
-  offset - index of dpram
-  Output:
-  value  - value of dpram
-
-  -------------------------------------------------------------------------*/
-u16 ft1000_read_dpram(struct net_device *dev, int offset)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	unsigned long flags;
-	u16 data;
-
-	/* Provide mutual exclusive access while reading ASIC registers. */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, offset);
-	data = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-
-	return data;
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_write_dpram
-  Description: This function will write to a specific area of dpram
-  (Electrabuzz ASIC only)
-  Input:
-  dev    - device structure
-  offset - index of dpram
-  value  - value to write
-  Output:
-  none.
-
-  -------------------------------------------------------------------------*/
-static inline void ft1000_write_dpram(struct net_device *dev,
-				      int offset, u16 value)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	unsigned long flags;
-
-	/* Provide mutual exclusive access while reading ASIC registers. */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, offset);
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA, value);
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_read_dpram_mag_16
-  Description: This function will read the specific area of dpram
-  (Magnemite ASIC only)
-  Input:
-  dev    - device structure
-  offset - index of dpram
-  Output:
-  value  - value of dpram
-
-  -------------------------------------------------------------------------*/
-u16 ft1000_read_dpram_mag_16(struct net_device *dev, int offset, int Index)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	unsigned long flags;
-	u16 data;
-
-	/* Provide mutual exclusive access while reading ASIC registers. */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, offset);
-	/* check if we want to read upper or lower 32-bit word */
-	if (Index)
-		data = ft1000_read_reg(dev, FT1000_REG_MAG_DPDATAL);
-	else
-		data = ft1000_read_reg(dev, FT1000_REG_MAG_DPDATAH);
-
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-
-	return data;
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_write_dpram_mag_16
-  Description: This function will write to a specific area of dpram
-  (Magnemite ASIC only)
-  Input:
-  dev    - device structure
-  offset - index of dpram
-  value  - value to write
-  Output:
-  none.
-
-  -------------------------------------------------------------------------*/
-static inline void ft1000_write_dpram_mag_16(struct net_device *dev,
-					     int offset, u16 value, int Index)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	unsigned long flags;
-
-	/* Provide mutual exclusive access while reading ASIC registers. */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, offset);
-	if (Index)
-		ft1000_write_reg(dev, FT1000_REG_MAG_DPDATAL, value);
-	else
-		ft1000_write_reg(dev, FT1000_REG_MAG_DPDATAH, value);
-
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_read_dpram_mag_32
-  Description: This function will read the specific area of dpram
-  (Magnemite ASIC only)
-  Input:
-  dev    - device structure
-  offset - index of dpram
-  Output:
-  value  - value of dpram
-
-  -------------------------------------------------------------------------*/
-u32 ft1000_read_dpram_mag_32(struct net_device *dev, int offset)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	unsigned long flags;
-	u32 data;
-
-	/* Provide mutual exclusive access while reading ASIC registers. */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, offset);
-	data = inl(dev->base_addr + FT1000_REG_MAG_DPDATAL);
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-
-	return data;
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_write_dpram_mag_32
-  Description: This function will write to a specific area of dpram
-  (Magnemite ASIC only)
-  Input:
-  dev    - device structure
-  offset - index of dpram
-  value  - value to write
-  Output:
-  none.
-
-  -------------------------------------------------------------------------*/
-void ft1000_write_dpram_mag_32(struct net_device *dev, int offset, u32 value)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	unsigned long flags;
-
-	/* Provide mutual exclusive access while reading ASIC registers. */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-	ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, offset);
-	outl(value, dev->base_addr + FT1000_REG_MAG_DPDATAL);
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_enable_interrupts
-  Description: This function will enable interrupts base on the current
-	       interrupt mask.
-  Input:
-  dev    - device structure
-  Output:
-  None.
-
-  -------------------------------------------------------------------------*/
-static void ft1000_enable_interrupts(struct net_device *dev)
-{
-	u16 tempword;
-
-	ft1000_write_reg(dev, FT1000_REG_SUP_IMASK, ISR_DEFAULT_MASK);
-	tempword = ft1000_read_reg(dev, FT1000_REG_SUP_IMASK);
-	pr_debug("current interrupt enable mask = 0x%x\n", tempword);
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_disable_interrupts
-  Description: This function will disable all interrupts.
-  Input:
-  dev    - device structure
-  Output:
-  None.
-
-  -------------------------------------------------------------------------*/
-static void ft1000_disable_interrupts(struct net_device *dev)
-{
-	u16 tempword;
-
-	ft1000_write_reg(dev, FT1000_REG_SUP_IMASK, ISR_MASK_ALL);
-	tempword = ft1000_read_reg(dev, FT1000_REG_SUP_IMASK);
-	pr_debug("current interrupt enable mask = 0x%x\n", tempword);
-}
-
-/*---------------------------------------------------------------------------
-  Function:	ft1000_read_dsp_timer
-  Description:	This function reads the DSP timer and stores its value in the
-		DSP_TIME field of the ft1000_info struct passed as argument
-  Input:
-  dev    - device structure
-  info   - ft1000_info structure
-  Output:
-  None.
-
-  -------------------------------------------------------------------------*/
-static void ft1000_read_dsp_timer(struct net_device *dev,
-				  struct ft1000_info *info)
-{
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		info->DSP_TIME[0] = ft1000_read_dpram(dev, FT1000_DSP_TIMER0);
-		info->DSP_TIME[1] = ft1000_read_dpram(dev, FT1000_DSP_TIMER1);
-		info->DSP_TIME[2] = ft1000_read_dpram(dev, FT1000_DSP_TIMER2);
-		info->DSP_TIME[3] = ft1000_read_dpram(dev, FT1000_DSP_TIMER3);
-	} else {
-		info->DSP_TIME[0] =
-			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER0,
-						 FT1000_MAG_DSP_TIMER0_INDX);
-		info->DSP_TIME[1] =
-			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER1,
-						 FT1000_MAG_DSP_TIMER1_INDX);
-		info->DSP_TIME[2] =
-			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER2,
-						 FT1000_MAG_DSP_TIMER2_INDX);
-		info->DSP_TIME[3] =
-			ft1000_read_dpram_mag_16(dev, FT1000_MAG_DSP_TIMER3,
-						 FT1000_MAG_DSP_TIMER3_INDX);
-	}
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_reset_asic
-  Description: This function will call the Card Service function to reset the
-  ASIC.
-  Input:
-  dev    - device structure
-  Output:
-  none
-
-  -------------------------------------------------------------------------*/
-static void ft1000_reset_asic(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	struct ft1000_pcmcia *pcmcia = info->priv;
-	u16 tempword;
-
-	(*info->ft1000_reset) (pcmcia->link);
-
-	/*
-	 * Let's use the register provided by the Magnemite ASIC to reset the
-	 * ASIC and DSP.
-	 */
-	if (info->AsicID == MAGNEMITE_ID) {
-		ft1000_write_reg(dev, FT1000_REG_RESET,
-				 DSP_RESET_BIT | ASIC_RESET_BIT);
-	}
-	mdelay(1);
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		/* set watermark to -1 in order to not generate an interrupt */
-		ft1000_write_reg(dev, FT1000_REG_WATERMARK, 0xffff);
-	} else {
-		/* set watermark to -1 in order to not generate an interrupt */
-		ft1000_write_reg(dev, FT1000_REG_MAG_WATERMARK, 0xffff);
-	}
-	/* clear interrupts */
-	tempword = ft1000_read_reg(dev, FT1000_REG_SUP_ISR);
-	pr_debug("interrupt status register = 0x%x\n", tempword);
-	ft1000_write_reg(dev, FT1000_REG_SUP_ISR, tempword);
-	tempword = ft1000_read_reg(dev, FT1000_REG_SUP_ISR);
-	pr_debug("interrupt status register = 0x%x\n", tempword);
-
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_reset_card
-  Description: This function will reset the card
-  Input:
-  dev    - device structure
-  Output:
-  status - false (card reset fail)
-  true  (card reset successful)
-
-  -------------------------------------------------------------------------*/
-static int ft1000_reset_card(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 tempword;
-	int i;
-	unsigned long flags;
-	struct prov_record *ptr;
-	struct prov_record *tmp;
-
-	info->CardReady = 0;
-	info->ProgConStat = 0;
-	info->squeseqnum = 0;
-	ft1000_disable_interrupts(dev);
-
-	/* del_timer(&poll_timer); */
-
-	/* Make sure we free any memory reserve for provisioning */
-	list_for_each_entry_safe(ptr, tmp, &info->prov_list, list) {
-		pr_debug("deleting provisioning record\n");
-		list_del(&ptr->list);
-		kfree(ptr->pprov_data);
-		kfree(ptr);
-	}
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		pr_debug("resetting DSP\n");
-		ft1000_write_reg(dev, FT1000_REG_RESET, DSP_RESET_BIT);
-	} else {
-		pr_debug("resetting ASIC and DSP\n");
-		ft1000_write_reg(dev, FT1000_REG_RESET,
-				 DSP_RESET_BIT | ASIC_RESET_BIT);
-	}
-
-	/* Copy DSP session record into info block if this is not a coldstart */
-	if (ft1000_card_present == 1) {
-		spin_lock_irqsave(&info->dpram_lock, flags);
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 FT1000_DPRAM_RX_BASE);
-			for (i = 0; i < MAX_DSP_SESS_REC; i++) {
-				info->DSPSess.Rec[i] =
-					ft1000_read_reg(dev,
-							FT1000_REG_DPRAM_DATA);
-			}
-		} else {
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 FT1000_DPRAM_MAG_RX_BASE);
-			for (i = 0; i < MAX_DSP_SESS_REC / 2; i++) {
-				info->DSPSess.MagRec[i] =
-					inl(dev->base_addr
-						+ FT1000_REG_MAG_DPDATA);
-			}
-		}
-		spin_unlock_irqrestore(&info->dpram_lock, flags);
-	}
-
-	pr_debug("resetting ASIC\n");
-	mdelay(10);
-	/* reset ASIC */
-	ft1000_reset_asic(dev);
-
-	pr_debug("downloading dsp image\n");
-
-	if (info->AsicID == MAGNEMITE_ID) {
-		/* Put dsp in reset and take ASIC out of reset */
-		pr_debug("Put DSP in reset and take ASIC out of reset\n");
-		ft1000_write_reg(dev, FT1000_REG_RESET, DSP_RESET_BIT);
-
-		/* Setting MAGNEMITE ASIC to big endian mode */
-		ft1000_write_reg(dev, FT1000_REG_SUP_CTRL, HOST_INTF_BE);
-		/* Download bootloader */
-		card_bootload(dev);
-
-		/* Take DSP out of reset */
-		ft1000_write_reg(dev, FT1000_REG_RESET, 0);
-		/* FLARION_DSP_ACTIVE; */
-		mdelay(10);
-		pr_debug("Take DSP out of reset\n");
-
-		/*
-		 * Wait for 0xfefe indicating dsp ready before starting
-		 * download
-		 */
-		for (i = 0; i < 50; i++) {
-			tempword = ft1000_read_dpram_mag_16(dev,
-						FT1000_MAG_DPRAM_FEFE,
-						FT1000_MAG_DPRAM_FEFE_INDX);
-			if (tempword == 0xfefe)
-				break;
-			mdelay(20);
-		}
-
-		if (i == 50) {
-			pr_debug("No FEFE detected from DSP\n");
-			return false;
-		}
-
-	} else {
-		/* Take DSP out of reset */
-		ft1000_write_reg(dev, FT1000_REG_RESET, ~DSP_RESET_BIT);
-		mdelay(10);
-	}
-
-	if (card_download(dev, fw_entry->data, fw_entry->size)) {
-		pr_debug("card download unsuccessful\n");
-		return false;
-	}
-	pr_debug("card download successful\n");
-
-	mdelay(10);
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		/*
-		 * Need to initialize the FIFO length counter to zero in order
-		 * to sync up with the DSP
-		 */
-		info->fifo_cnt = 0;
-		ft1000_write_dpram(dev, FT1000_FIFO_LEN, info->fifo_cnt);
-		/* Initialize DSP heartbeat area to ho */
-		ft1000_write_dpram(dev, FT1000_HI_HO, ho);
-		tempword = ft1000_read_dpram(dev, FT1000_HI_HO);
-		pr_debug("hi_ho value = 0x%x\n", tempword);
-	} else {
-		/* Initialize DSP heartbeat area to ho */
-		ft1000_write_dpram_mag_16(dev, FT1000_MAG_HI_HO, ho_mag,
-					  FT1000_MAG_HI_HO_INDX);
-		tempword =
-			ft1000_read_dpram_mag_16(dev, FT1000_MAG_HI_HO,
-						 FT1000_MAG_HI_HO_INDX);
-		pr_debug("hi_ho value = 0x%x\n", tempword);
-	}
-
-	info->CardReady = 1;
-	ft1000_enable_interrupts(dev);
-
-	/* Schedule heartbeat process to run every 2 seconds */
-	/* poll_timer.expires = jiffies + (2*HZ); */
-	/* poll_timer.data = (u_long)dev; */
-	/* add_timer(&poll_timer); */
-
-	return true;
-
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_chkcard
-  Description: This function will check if the device is presently available on
-  the system.
-  Input:
-  dev    - device structure
-  Output:
-  status - false (device is not present)
-  true  (device is present)
-
-  -------------------------------------------------------------------------*/
-static int ft1000_chkcard(struct net_device *dev)
-{
-	u16 tempword;
-
-	/*
-	 * Mask register is used to check for device presence since it is never
-	 * set to zero.
-	 */
-	tempword = ft1000_read_reg(dev, FT1000_REG_SUP_IMASK);
-	if (tempword == 0) {
-		pr_debug("IMASK = 0 Card not detected\n");
-		return false;
-	}
-	/*
-	 * The system will return the value of 0xffff for the version register
-	 * if the device is not present.
-	 */
-	tempword = ft1000_read_reg(dev, FT1000_REG_ASIC_ID);
-	if (tempword == 0xffff) {
-		pr_debug("Version = 0xffff Card not detected\n");
-		return false;
-	}
-	return true;
-}
-
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_hbchk
-  Description: This function will perform the heart beat check of the DSP as
-  well as the ASIC.
-  Input:
-  dev    - device structure
-  Output:
-  none
-
-  -------------------------------------------------------------------------*/
-static void ft1000_hbchk(u_long data)
-{
-	struct net_device *dev = (struct net_device *)data;
-
-	struct ft1000_info *info;
-	u16 tempword;
-
-	info = netdev_priv(dev);
-
-	if (info->CardReady == 1) {
-		/* Perform dsp heartbeat check */
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			tempword = ft1000_read_dpram(dev, FT1000_HI_HO);
-		} else {
-			tempword =
-				ntohs(ft1000_read_dpram_mag_16
-				      (dev, FT1000_MAG_HI_HO,
-				       FT1000_MAG_HI_HO_INDX));
-		}
-		pr_debug("hi_ho value = 0x%x\n", tempword);
-		/* Let's perform another check if ho is not detected */
-		if (tempword != ho) {
-			if (info->AsicID == ELECTRABUZZ_ID)
-				tempword = ft1000_read_dpram(dev, FT1000_HI_HO);
-			else
-				tempword = ntohs(ft1000_read_dpram_mag_16(dev,
-							FT1000_MAG_HI_HO,
-							FT1000_MAG_HI_HO_INDX));
-		}
-		if (tempword != ho) {
-			pr_info("heartbeat failed - no ho detected\n");
-			ft1000_read_dsp_timer(dev, info);
-			info->DrvErrNum = DSP_HB_INFO;
-			if (ft1000_reset_card(dev) == 0) {
-				pr_info("Hardware Failure Detected - PC Card disabled\n");
-				info->ProgConStat = 0xff;
-				return;
-			}
-			/* Schedule this module to run every 2 seconds */
-			poll_timer.expires = jiffies + (2*HZ);
-			poll_timer.data = (u_long)dev;
-			add_timer(&poll_timer);
-			return;
-		}
-
-		tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
-		/* Let's check doorbell again if fail */
-		if (tempword & FT1000_DB_HB)
-			tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
-
-		if (tempword & FT1000_DB_HB) {
-			pr_info("heartbeat doorbell not clear by firmware\n");
-			ft1000_read_dsp_timer(dev, info);
-			info->DrvErrNum = DSP_HB_INFO;
-			if (ft1000_reset_card(dev) == 0) {
-				pr_info("Hardware Failure Detected - PC Card disabled\n");
-				info->ProgConStat = 0xff;
-				return;
-			}
-			/* Schedule this module to run every 2 seconds */
-			poll_timer.expires = jiffies + (2*HZ);
-			poll_timer.data = (u_long)dev;
-			add_timer(&poll_timer);
-			return;
-		}
-		/*
-		 * Set dedicated area to hi and ring appropriate doorbell
-		 * according to hi/ho heartbeat protocol
-		 */
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			ft1000_write_dpram(dev, FT1000_HI_HO, hi);
-		} else {
-			ft1000_write_dpram_mag_16(dev, FT1000_MAG_HI_HO, hi_mag,
-						  FT1000_MAG_HI_HO_INDX);
-		}
-
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			tempword = ft1000_read_dpram(dev, FT1000_HI_HO);
-		} else {
-			tempword =
-				ntohs(ft1000_read_dpram_mag_16
-				      (dev, FT1000_MAG_HI_HO,
-				       FT1000_MAG_HI_HO_INDX));
-		}
-		/* Let's write hi again if fail */
-		if (tempword != hi) {
-			if (info->AsicID == ELECTRABUZZ_ID)
-				ft1000_write_dpram(dev, FT1000_HI_HO, hi);
-			else
-				ft1000_write_dpram_mag_16(dev, FT1000_MAG_HI_HO,
-						hi_mag, FT1000_MAG_HI_HO_INDX);
-
-			if (info->AsicID == ELECTRABUZZ_ID)
-				tempword = ft1000_read_dpram(dev, FT1000_HI_HO);
-			else
-				tempword = ntohs(ft1000_read_dpram_mag_16(dev,
-							FT1000_MAG_HI_HO,
-							FT1000_MAG_HI_HO_INDX));
-		}
-
-		if (tempword != hi) {
-			pr_info("heartbeat failed - cannot write hi into DPRAM\n");
-			ft1000_read_dsp_timer(dev, info);
-			info->DrvErrNum = DSP_HB_INFO;
-			if (ft1000_reset_card(dev) == 0) {
-				pr_info("Hardware Failure Detected - PC Card disabled\n");
-				info->ProgConStat = 0xff;
-				return;
-			}
-			/* Schedule this module to run every 2 seconds */
-			poll_timer.expires = jiffies + (2*HZ);
-			poll_timer.data = (u_long)dev;
-			add_timer(&poll_timer);
-			return;
-		}
-		ft1000_write_reg(dev, FT1000_REG_DOORBELL, FT1000_DB_HB);
-
-	}
-
-	/* Schedule this module to run every 2 seconds */
-	poll_timer.expires = jiffies + (2 * HZ);
-	poll_timer.data = (u_long)dev;
-	add_timer(&poll_timer);
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_send_cmd
-  Description:
-  Input:
-  Output:
-
-  -------------------------------------------------------------------------*/
-static void ft1000_send_cmd(struct net_device *dev, u16 *ptempbuffer, int size,
-			    u16 qtype)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	int i;
-	u16 tempword;
-	unsigned long flags;
-
-	size += sizeof(struct pseudo_hdr);
-	/* check for odd byte and increment to 16-bit word align value */
-	if ((size & 0x0001))
-		size++;
-	pr_debug("total length = %d\n", size);
-	pr_debug("length = %d\n", ntohs(*ptempbuffer));
-	/*
-	 * put message into slow queue area
-	 * All messages are in the form total_len + pseudo header + message body
-	 */
-	spin_lock_irqsave(&info->dpram_lock, flags);
-
-	/* Make sure SLOWQ doorbell is clear */
-	tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
-	i = 0;
-	while (tempword & FT1000_DB_DPRAM_TX) {
-		mdelay(10);
-		i++;
-		if (i == 10) {
-			spin_unlock_irqrestore(&info->dpram_lock, flags);
-			return;
-		}
-		tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
-	}
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 FT1000_DPRAM_TX_BASE);
-		/* Write total length to dpram */
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA, size);
-		/* Write pseudo header and messgae body */
-		for (i = 0; i < (size >> 1); i++) {
-			pr_debug("data %d = 0x%x\n", i, *ptempbuffer);
-			tempword = htons(*ptempbuffer++);
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA, tempword);
-		}
-	} else {
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 FT1000_DPRAM_MAG_TX_BASE);
-		/* Write total length to dpram */
-		ft1000_write_reg(dev, FT1000_REG_MAG_DPDATAH, htons(size));
-		/* Write pseudo header and messgae body */
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 FT1000_DPRAM_MAG_TX_BASE + 1);
-		for (i = 0; i < (size >> 2); i++) {
-			pr_debug("data = 0x%x\n", *ptempbuffer);
-			outw(*ptempbuffer++,
-			     dev->base_addr + FT1000_REG_MAG_DPDATAL);
-			pr_debug("data = 0x%x\n", *ptempbuffer);
-			outw(*ptempbuffer++,
-			     dev->base_addr + FT1000_REG_MAG_DPDATAH);
-		}
-		pr_debug("data = 0x%x\n", *ptempbuffer);
-		outw(*ptempbuffer++, dev->base_addr + FT1000_REG_MAG_DPDATAL);
-		pr_debug("data = 0x%x\n", *ptempbuffer);
-		outw(*ptempbuffer++, dev->base_addr + FT1000_REG_MAG_DPDATAH);
-	}
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-
-	/* ring doorbell to notify DSP that we have a message ready */
-	ft1000_write_reg(dev, FT1000_REG_DOORBELL, FT1000_DB_DPRAM_TX);
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_receive_cmd
-  Description: This function will read a message from the dpram area.
-  Input:
-  dev - network device structure
-  pbuffer - caller supply address to buffer
-  pnxtph - pointer to next pseudo header
-  Output:
-  Status = 0 (unsuccessful)
-  = 1 (successful)
-
-  -------------------------------------------------------------------------*/
-static bool ft1000_receive_cmd(struct net_device *dev, u16 *pbuffer,
-			       int maxsz, u16 *pnxtph)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 size;
-	u16 *ppseudohdr;
-	int i;
-	u16 tempword;
-	unsigned long flags;
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		size = ft1000_read_dpram(dev, *pnxtph)
-			+ sizeof(struct pseudo_hdr);
-	} else {
-		size = ntohs(ft1000_read_dpram_mag_16(dev, FT1000_MAG_PH_LEN,
-						      FT1000_MAG_PH_LEN_INDX))
-				+ sizeof(struct pseudo_hdr);
-	}
-	if (size > maxsz) {
-		pr_debug("Invalid command length = %d\n", size);
-		return false;
-	}
-	ppseudohdr = (u16 *)pbuffer;
-	spin_lock_irqsave(&info->dpram_lock, flags);
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 FT1000_DPRAM_RX_BASE + 2);
-		for (i = 0; i <= (size >> 1); i++) {
-			tempword =
-				ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-			*pbuffer++ = ntohs(tempword);
-		}
-	} else {
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 FT1000_DPRAM_MAG_RX_BASE);
-		*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAH);
-		pr_debug("received data = 0x%x\n", *pbuffer);
-		pbuffer++;
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-				 FT1000_DPRAM_MAG_RX_BASE + 1);
-		for (i = 0; i <= (size >> 2); i++) {
-			*pbuffer =
-				inw(dev->base_addr +
-				    FT1000_REG_MAG_DPDATAL);
-			pbuffer++;
-			*pbuffer =
-				inw(dev->base_addr +
-				    FT1000_REG_MAG_DPDATAH);
-			pbuffer++;
-		}
-		/* copy odd aligned word */
-		*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAL);
-		pr_debug("received data = 0x%x\n", *pbuffer);
-		pbuffer++;
-		*pbuffer = inw(dev->base_addr + FT1000_REG_MAG_DPDATAH);
-		pr_debug("received data = 0x%x\n", *pbuffer);
-		pbuffer++;
-	}
-	if (size & 0x0001) {
-		/* copy odd byte from fifo */
-		tempword = ft1000_read_reg(dev, FT1000_REG_DPRAM_DATA);
-		*pbuffer = ntohs(tempword);
-	}
-	spin_unlock_irqrestore(&info->dpram_lock, flags);
-
-	/*
-	 * Check if pseudo header checksum is good
-	 * Calculate pseudo header checksum
-	 */
-	tempword = *ppseudohdr++;
-	for (i = 1; i < 7; i++)
-		tempword ^= *ppseudohdr++;
-	if (tempword != *ppseudohdr) {
-		pr_debug("Pseudo header checksum mismatch\n");
-		/* Drop this message */
-		return false;
-	}
-	return true;
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_proc_drvmsg
-  Description: This function will process the various driver messages.
-  Input:
-  dev    - device structure
-  pnxtph - pointer to next pseudo header
-  Output:
-  none
-
-  -------------------------------------------------------------------------*/
-static void ft1000_proc_drvmsg(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 msgtype;
-	u16 tempword;
-	struct media_msg *pmediamsg;
-	struct dsp_init_msg *pdspinitmsg;
-	struct drv_msg *pdrvmsg;
-	u16 len;
-	u16 i;
-	struct prov_record *ptr;
-	struct pseudo_hdr *ppseudo_hdr;
-	u16 *pmsg;
-	struct timeval tv;
-	union {
-		u8 byte[2];
-		u16 wrd;
-	} convert;
-
-	if (info->AsicID == ELECTRABUZZ_ID)
-		tempword = FT1000_DPRAM_RX_BASE+2;
-	else
-		tempword = FT1000_DPRAM_MAG_RX_BASE;
-
-	if (ft1000_receive_cmd(dev, &cmdbuffer[0], MAX_CMD_SQSIZE, &tempword)) {
-
-		/*
-		 * Get the message type which is total_len + PSEUDO header
-		 * + msgtype + message body
-		 */
-		pdrvmsg = (struct drv_msg *)&cmdbuffer[0];
-		msgtype = ntohs(pdrvmsg->type);
-		pr_debug("Command message type = 0x%x\n", msgtype);
-		switch (msgtype) {
-		case DSP_PROVISION:
-			pr_debug("Got a provisioning request message from DSP\n");
-			mdelay(25);
-			while (list_empty(&info->prov_list) == 0) {
-				pr_debug("Sending a provisioning message\n");
-				/* Make sure SLOWQ doorbell is clear */
-				tempword = ft1000_read_reg(dev,
-							   FT1000_REG_DOORBELL);
-				i = 0;
-				while (tempword & FT1000_DB_DPRAM_TX) {
-					mdelay(5);
-					i++;
-					if (i == 10)
-						break;
-				}
-				ptr = list_entry(info->prov_list.next,
-						 struct prov_record, list);
-				len = *(u16 *)ptr->pprov_data;
-				len = htons(len);
-
-				pmsg = (u16 *)ptr->pprov_data;
-				ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-				/* Insert slow queue sequence number */
-				ppseudo_hdr->seq_num = info->squeseqnum++;
-				ppseudo_hdr->portsrc = 0;
-				/* Calculate new checksum */
-				ppseudo_hdr->checksum = *pmsg++;
-				pr_debug("checksum = 0x%x\n",
-					 ppseudo_hdr->checksum);
-				for (i = 1; i < 7; i++) {
-					ppseudo_hdr->checksum ^= *pmsg++;
-					pr_debug("checksum = 0x%x\n",
-						 ppseudo_hdr->checksum);
-				}
-
-				ft1000_send_cmd(dev, (u16 *)ptr->pprov_data,
-						len, SLOWQ_TYPE);
-				list_del(&ptr->list);
-				kfree(ptr->pprov_data);
-				kfree(ptr);
-			}
-			/*
-			 * Indicate adapter is ready to take application
-			 * messages after all provisioning messages are sent
-			 */
-			info->CardReady = 1;
-			break;
-		case MEDIA_STATE:
-			pmediamsg = (struct media_msg *)&cmdbuffer[0];
-			if (info->ProgConStat != 0xFF) {
-				if (pmediamsg->state) {
-					pr_debug("Media is up\n");
-					if (info->mediastate == 0) {
-						netif_carrier_on(dev);
-						netif_wake_queue(dev);
-						info->mediastate = 1;
-						do_gettimeofday(&tv);
-						info->ConTm = tv.tv_sec;
-					}
-				} else {
-					pr_debug("Media is down\n");
-					if (info->mediastate == 1) {
-						info->mediastate = 0;
-						netif_carrier_off(dev);
-						netif_stop_queue(dev);
-						info->ConTm = 0;
-					}
-				}
-			} else {
-				pr_debug("Media is down\n");
-				if (info->mediastate == 1) {
-					info->mediastate = 0;
-					netif_carrier_off(dev);
-					netif_stop_queue(dev);
-					info->ConTm = 0;
-				}
-			}
-			break;
-		case DSP_INIT_MSG:
-			pdspinitmsg = (struct dsp_init_msg *)&cmdbuffer[0];
-			memcpy(info->DspVer, pdspinitmsg->DspVer, DSPVERSZ);
-			pr_debug("DSPVER = 0x%2x 0x%2x 0x%2x 0x%2x\n",
-				 info->DspVer[0], info->DspVer[1],
-				 info->DspVer[2], info->DspVer[3]);
-			memcpy(info->HwSerNum, pdspinitmsg->HwSerNum,
-			       HWSERNUMSZ);
-			memcpy(info->Sku, pdspinitmsg->Sku, SKUSZ);
-			memcpy(info->eui64, pdspinitmsg->eui64, EUISZ);
-			dev->dev_addr[0] = info->eui64[0];
-			dev->dev_addr[1] = info->eui64[1];
-			dev->dev_addr[2] = info->eui64[2];
-			dev->dev_addr[3] = info->eui64[5];
-			dev->dev_addr[4] = info->eui64[6];
-			dev->dev_addr[5] = info->eui64[7];
-
-			if (ntohs(pdspinitmsg->length) ==
-			    (sizeof(struct dsp_init_msg) - 20)) {
-				memcpy(info->ProductMode,
-				       pdspinitmsg->ProductMode, MODESZ);
-				memcpy(info->RfCalVer, pdspinitmsg->RfCalVer,
-				       CALVERSZ);
-				memcpy(info->RfCalDate, pdspinitmsg->RfCalDate,
-				       CALDATESZ);
-				pr_debug("RFCalVer = 0x%2x 0x%2x\n",
-					 info->RfCalVer[0], info->RfCalVer[1]);
-			}
-
-			break;
-		case DSP_STORE_INFO:
-			pr_debug("Got DSP_STORE_INFO\n");
-			tempword = ntohs(pdrvmsg->length);
-			info->DSPInfoBlklen = tempword;
-			if (tempword < (MAX_DSP_SESS_REC - 4)) {
-				pmsg = (u16 *)&pdrvmsg->data[0];
-				for (i = 0; i < ((tempword + 1) / 2); i++) {
-					pr_debug("dsp info data = 0x%x\n",
-						 *pmsg);
-					info->DSPInfoBlk[i + 10] = *pmsg++;
-				}
-			}
-			break;
-		case DSP_GET_INFO:
-			pr_debug("Got DSP_GET_INFO\n");
-			/*
-			 * copy dsp info block to dsp
-			 * allow any outstanding ioctl to finish
-			 */
-			mdelay(10);
-			tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
-			if (tempword & FT1000_DB_DPRAM_TX) {
-				mdelay(10);
-				tempword = ft1000_read_reg(dev,
-							   FT1000_REG_DOORBELL);
-				if (tempword & FT1000_DB_DPRAM_TX)
-					mdelay(10);
-			}
-
-			if ((tempword & FT1000_DB_DPRAM_TX) == 0) {
-				/*
-				 * Put message into Slow Queue
-				 * Form Pseudo header
-				 */
-				pmsg = (u16 *)info->DSPInfoBlk;
-				ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-				ppseudo_hdr->length =
-					htons(info->DSPInfoBlklen + 4);
-				ppseudo_hdr->source = 0x10;
-				ppseudo_hdr->destination = 0x20;
-				ppseudo_hdr->portdest = 0;
-				ppseudo_hdr->portsrc = 0;
-				ppseudo_hdr->sh_str_id = 0;
-				ppseudo_hdr->control = 0;
-				ppseudo_hdr->rsvd1 = 0;
-				ppseudo_hdr->rsvd2 = 0;
-				ppseudo_hdr->qos_class = 0;
-				/* Insert slow queue sequence number */
-				ppseudo_hdr->seq_num = info->squeseqnum++;
-				/* Insert application id */
-				ppseudo_hdr->portsrc = 0;
-				/* Calculate new checksum */
-				ppseudo_hdr->checksum = *pmsg++;
-				for (i = 1; i < 7; i++)
-					ppseudo_hdr->checksum ^= *pmsg++;
-
-				info->DSPInfoBlk[8] = 0x7200;
-				info->DSPInfoBlk[9] =
-					htons(info->DSPInfoBlklen);
-				ft1000_send_cmd(dev, info->DSPInfoBlk,
-						(u16)(info->DSPInfoBlklen+4),
-						0);
-			}
-
-			break;
-		case GET_DRV_ERR_RPT_MSG:
-			pr_debug("Got GET_DRV_ERR_RPT_MSG\n");
-			/*
-			 * copy driver error message to dsp
-			 * allow any outstanding ioctl to finish
-			 */
-			mdelay(10);
-			tempword = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
-			if (tempword & FT1000_DB_DPRAM_TX) {
-				mdelay(10);
-				tempword = ft1000_read_reg(dev,
-							   FT1000_REG_DOORBELL);
-				if (tempword & FT1000_DB_DPRAM_TX)
-					mdelay(10);
-			}
-
-			if ((tempword & FT1000_DB_DPRAM_TX) == 0) {
-				/*
-				 * Put message into Slow Queue
-				 * Form Pseudo header
-				 */
-				pmsg = (u16 *)&tempbuffer[0];
-				ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-				ppseudo_hdr->length = htons(0x0012);
-				ppseudo_hdr->source = 0x10;
-				ppseudo_hdr->destination = 0x20;
-				ppseudo_hdr->portdest = 0;
-				ppseudo_hdr->portsrc = 0;
-				ppseudo_hdr->sh_str_id = 0;
-				ppseudo_hdr->control = 0;
-				ppseudo_hdr->rsvd1 = 0;
-				ppseudo_hdr->rsvd2 = 0;
-				ppseudo_hdr->qos_class = 0;
-				/* Insert slow queue sequence number */
-				ppseudo_hdr->seq_num = info->squeseqnum++;
-				/* Insert application id */
-				ppseudo_hdr->portsrc = 0;
-				/* Calculate new checksum */
-				ppseudo_hdr->checksum = *pmsg++;
-				for (i = 1; i < 7; i++)
-					ppseudo_hdr->checksum ^= *pmsg++;
-
-				pmsg = (u16 *)&tempbuffer[16];
-				*pmsg++ = htons(RSP_DRV_ERR_RPT_MSG);
-				*pmsg++ = htons(0x000e);
-				*pmsg++ = htons(info->DSP_TIME[0]);
-				*pmsg++ = htons(info->DSP_TIME[1]);
-				*pmsg++ = htons(info->DSP_TIME[2]);
-				*pmsg++ = htons(info->DSP_TIME[3]);
-				convert.byte[0] = info->DspVer[0];
-				convert.byte[1] = info->DspVer[1];
-				*pmsg++ = convert.wrd;
-				convert.byte[0] = info->DspVer[2];
-				convert.byte[1] = info->DspVer[3];
-				*pmsg++ = convert.wrd;
-				*pmsg++ = htons(info->DrvErrNum);
-
-				ft1000_send_cmd(dev, (u16 *)&tempbuffer[0],
-						(u16)(0x0012), 0);
-				info->DrvErrNum = 0;
-			}
-
-			break;
-		default:
-			break;
-		}
-	}
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_parse_dpram_msg
-  Description: This function will parse the message received from the DSP
-  via the DPRAM interface.
-  Input:
-  dev    - device structure
-  Output:
-  status - FAILURE
-  SUCCESS
-
-  -------------------------------------------------------------------------*/
-static int ft1000_parse_dpram_msg(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 doorbell;
-	u16 portid;
-	u16 nxtph;
-	u16 total_len;
-	int i = 0;
-	unsigned long flags;
-
-	doorbell = ft1000_read_reg(dev, FT1000_REG_DOORBELL);
-	pr_debug("Doorbell = 0x%x\n", doorbell);
-
-	if (doorbell & FT1000_ASIC_RESET_REQ) {
-		/* Copy DSP session record from info block */
-		spin_lock_irqsave(&info->dpram_lock, flags);
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 FT1000_DPRAM_RX_BASE);
-			for (i = 0; i < MAX_DSP_SESS_REC; i++) {
-				ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA,
-						 info->DSPSess.Rec[i]);
-			}
-		} else {
-			ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR,
-					 FT1000_DPRAM_MAG_RX_BASE);
-			for (i = 0; i < MAX_DSP_SESS_REC / 2; i++) {
-				outl(info->DSPSess.MagRec[i],
-				     dev->base_addr + FT1000_REG_MAG_DPDATA);
-			}
-		}
-		spin_unlock_irqrestore(&info->dpram_lock, flags);
-
-		/* clear ASIC RESET request */
-		ft1000_write_reg(dev, FT1000_REG_DOORBELL,
-				 FT1000_ASIC_RESET_REQ);
-		pr_debug("Got an ASIC RESET Request\n");
-		ft1000_write_reg(dev, FT1000_REG_DOORBELL,
-				 FT1000_ASIC_RESET_DSP);
-
-		if (info->AsicID == MAGNEMITE_ID) {
-			/* Setting MAGNEMITE ASIC to big endian mode */
-			ft1000_write_reg(dev, FT1000_REG_SUP_CTRL,
-					 HOST_INTF_BE);
-		}
-	}
-
-	if (doorbell & FT1000_DSP_ASIC_RESET) {
-		pr_debug("Got a dsp ASIC reset message\n");
-		ft1000_write_reg(dev, FT1000_REG_DOORBELL,
-				 FT1000_DSP_ASIC_RESET);
-		udelay(200);
-		return SUCCESS;
-	}
-
-	if (doorbell & FT1000_DB_DPRAM_RX) {
-		pr_debug("Got a slow queue message\n");
-		nxtph = FT1000_DPRAM_RX_BASE + 2;
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			total_len =
-				ft1000_read_dpram(dev, FT1000_DPRAM_RX_BASE);
-		} else {
-			total_len =
-				ntohs(ft1000_read_dpram_mag_16
-				      (dev, FT1000_MAG_TOTAL_LEN,
-				       FT1000_MAG_TOTAL_LEN_INDX));
-		}
-		pr_debug("total length = %d\n", total_len);
-		if ((total_len < MAX_CMD_SQSIZE)
-				&& (total_len > sizeof(struct pseudo_hdr))) {
-			total_len += nxtph;
-			/*
-			 * ft1000_read_reg will return a value that needs to be
-			 * byteswap in order to get DSP_QID_OFFSET.
-			 */
-			if (info->AsicID == ELECTRABUZZ_ID) {
-				portid = (ft1000_read_dpram(dev, DSP_QID_OFFSET
-						+ FT1000_DPRAM_RX_BASE + 2)
-						>> 8) & 0xff;
-			} else {
-				portid =
-					ft1000_read_dpram_mag_16
-					 (dev, FT1000_MAG_PORT_ID,
-					  FT1000_MAG_PORT_ID_INDX) & 0xff;
-			}
-			pr_debug("DSP_QID = 0x%x\n", portid);
-
-			if (portid == DRIVERID) {
-				/*
-				 * We are assumming one driver message from the
-				 * DSP at a time.
-				 */
-				ft1000_proc_drvmsg(dev);
-			}
-		}
-		ft1000_write_reg(dev, FT1000_REG_DOORBELL, FT1000_DB_DPRAM_RX);
-	}
-
-	if (doorbell & FT1000_DB_COND_RESET) {
-		/* Reset ASIC and DSP */
-		ft1000_read_dsp_timer(dev, info);
-		info->DrvErrNum = DSP_CONDRESET_INFO;
-		pr_debug("DSP conditional reset requested\n");
-		ft1000_reset_card(dev);
-		ft1000_write_reg(dev, FT1000_REG_DOORBELL,
-				 FT1000_DB_COND_RESET);
-	}
-	/* let's clear any unexpected doorbells from DSP */
-	doorbell =
-		doorbell & ~(FT1000_DB_DPRAM_RX | FT1000_ASIC_RESET_REQ |
-			     FT1000_DB_COND_RESET | 0xff00);
-	if (doorbell) {
-		pr_debug("Clearing unexpected doorbell = 0x%x\n", doorbell);
-		ft1000_write_reg(dev, FT1000_REG_DOORBELL, doorbell);
-	}
-
-	return SUCCESS;
-
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_flush_fifo
-  Description: This function will flush one packet from the downlink
-  FIFO.
-  Input:
-  dev      - device structure
-  drv_err  - driver error causing the flush fifo
-  Output:
-  None.
-
-  -------------------------------------------------------------------------*/
-static void ft1000_flush_fifo(struct net_device *dev, u16 DrvErrNum)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	struct ft1000_pcmcia *pcmcia = info->priv;
-	u16 i;
-	u32 templong;
-	u16 tempword;
-
-	if (pcmcia->PktIntfErr > MAX_PH_ERR) {
-		ft1000_read_dsp_timer(dev, info);
-		info->DrvErrNum = DrvErrNum;
-		ft1000_reset_card(dev);
-		return;
-	}
-	/* Flush corrupted pkt from FIFO */
-	i = 0;
-	do {
-		if (info->AsicID == ELECTRABUZZ_ID) {
-			tempword =
-				ft1000_read_reg(dev, FT1000_REG_DFIFO);
-			tempword =
-				ft1000_read_reg(dev, FT1000_REG_DFIFO_STAT);
-		} else {
-			templong =
-				inl(dev->base_addr + FT1000_REG_MAG_DFR);
-			tempword =
-				inw(dev->base_addr + FT1000_REG_MAG_DFSR);
-		}
-		i++;
-		/*
-		 * This should never happen unless the ASIC is broken.
-		 * We must reset to recover.
-		 */
-		if ((i > 2048) || (tempword == 0)) {
-			ft1000_read_dsp_timer(dev, info);
-			if (tempword == 0) {
-				/*
-				 * Let's check if ASIC reads are still ok by
-				 * reading the Mask register which is never zero
-				 * at this point of the code.
-				 */
-				tempword =
-					inw(dev->base_addr +
-					    FT1000_REG_SUP_IMASK);
-				if (tempword == 0) {
-					/*
-					 * This indicates that we can not
-					 * communicate with the ASIC
-					 */
-					info->DrvErrNum = FIFO_FLUSH_BADCNT;
-				} else {
-					/*
-					 * Let's assume that we really flush
-					 * the FIFO
-					 */
-					pcmcia->PktIntfErr++;
-					return;
-				}
-			} else {
-				info->DrvErrNum = FIFO_FLUSH_MAXLIMIT;
-			}
-			return;
-		}
-		tempword = inw(dev->base_addr + FT1000_REG_SUP_STAT);
-	} while ((tempword & 0x03) != 0x03);
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		i++;
-		pr_debug("Flushing FIFO complete = %x\n", tempword);
-		/* Flush last word in FIFO. */
-		tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
-		/* Update FIFO counter for DSP */
-		i = i * 2;
-		pr_debug("Flush Data byte count to dsp = %d\n", i);
-		info->fifo_cnt += i;
-		ft1000_write_dpram(dev, FT1000_FIFO_LEN,
-				   info->fifo_cnt);
-	} else {
-		pr_debug("Flushing FIFO complete = %x\n", tempword);
-		/* Flush last word in FIFO */
-		templong = inl(dev->base_addr + FT1000_REG_MAG_DFR);
-		tempword = inw(dev->base_addr + FT1000_REG_SUP_STAT);
-		pr_debug("FT1000_REG_SUP_STAT = 0x%x\n", tempword);
-		tempword = inw(dev->base_addr + FT1000_REG_MAG_DFSR);
-		pr_debug("FT1000_REG_MAG_DFSR = 0x%x\n", tempword);
-	}
-	if (DrvErrNum)
-		pcmcia->PktIntfErr++;
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_copy_up_pkt
-  Description: This function will pull Flarion packets out of the Downlink
-  FIFO and convert it to an ethernet packet.  The ethernet packet will
-  then be deliver to the TCP/IP stack.
-  Input:
-  dev    - device structure
-  Output:
-  status - FAILURE
-  SUCCESS
-
-  -------------------------------------------------------------------------*/
-static int ft1000_copy_up_pkt(struct net_device *dev)
-{
-	u16 tempword;
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 len;
-	struct sk_buff *skb;
-	u16 i;
-	u8 *pbuffer = NULL;
-	u8 *ptemp = NULL;
-	u16 chksum;
-	u32 *ptemplong;
-	u32 templong;
-
-	/* Read length */
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
-		len = tempword;
-	} else {
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRL);
-		len = ntohs(tempword);
-	}
-	chksum = tempword;
-	pr_debug("Number of Bytes in FIFO = %d\n", len);
-
-	if (len > ENET_MAX_SIZE) {
-		pr_debug("size of ethernet packet invalid\n");
-		if (info->AsicID == MAGNEMITE_ID) {
-			/* Read High word to complete 32 bit access */
-			tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRH);
-		}
-		ft1000_flush_fifo(dev, DSP_PKTLEN_INFO);
-		info->stats.rx_errors++;
-		return FAILURE;
-	}
-
-	skb = dev_alloc_skb(len + 12 + 2);
-
-	if (skb == NULL) {
-		/* Read High word to complete 32 bit access */
-		if (info->AsicID == MAGNEMITE_ID)
-			tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRH);
-
-		ft1000_flush_fifo(dev, 0);
-		info->stats.rx_errors++;
-		return FAILURE;
-	}
-	pbuffer = (u8 *)skb_put(skb, len + 12);
-
-	/* Pseudo header */
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		for (i = 1; i < 7; i++) {
-			tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
-			chksum ^= tempword;
-		}
-		/* read checksum value */
-		tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
-	} else {
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRH);
-		pr_debug("Pseudo = 0x%x\n", tempword);
-		chksum ^= tempword;
-
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRL);
-		pr_debug("Pseudo = 0x%x\n", tempword);
-		chksum ^= tempword;
-
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRH);
-		pr_debug("Pseudo = 0x%x\n", tempword);
-		chksum ^= tempword;
-
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRL);
-		pr_debug("Pseudo = 0x%x\n", tempword);
-		chksum ^= tempword;
-
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRH);
-		pr_debug("Pseudo = 0x%x\n", tempword);
-		chksum ^= tempword;
-
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRL);
-		pr_debug("Pseudo = 0x%x\n", tempword);
-		chksum ^= tempword;
-
-		/* read checksum value */
-		tempword = ft1000_read_reg(dev, FT1000_REG_MAG_DFRH);
-		pr_debug("Pseudo = 0x%x\n", tempword);
-	}
-
-	if (chksum != tempword) {
-		pr_debug("Packet checksum mismatch 0x%x 0x%x\n",
-			 chksum, tempword);
-		ft1000_flush_fifo(dev, DSP_PKTPHCKSUM_INFO);
-		info->stats.rx_errors++;
-		kfree_skb(skb);
-		return FAILURE;
-	}
-	/* subtract the number of bytes read already */
-	ptemp = pbuffer;
-
-	/* fake MAC address */
-	*pbuffer++ = dev->dev_addr[0];
-	*pbuffer++ = dev->dev_addr[1];
-	*pbuffer++ = dev->dev_addr[2];
-	*pbuffer++ = dev->dev_addr[3];
-	*pbuffer++ = dev->dev_addr[4];
-	*pbuffer++ = dev->dev_addr[5];
-	*pbuffer++ = 0x00;
-	*pbuffer++ = 0x07;
-	*pbuffer++ = 0x35;
-	*pbuffer++ = 0xff;
-	*pbuffer++ = 0xff;
-	*pbuffer++ = 0xfe;
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		for (i = 0; i < len / 2; i++) {
-			tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
-			*pbuffer++ = (u8) (tempword >> 8);
-			*pbuffer++ = (u8)tempword;
-			if (ft1000_chkcard(dev) == false) {
-				kfree_skb(skb);
-				return FAILURE;
-			}
-		}
-
-		/* Need to read one more word if odd byte */
-		if (len & 0x0001) {
-			tempword = ft1000_read_reg(dev, FT1000_REG_DFIFO);
-			*pbuffer++ = (u8) (tempword >> 8);
-		}
-	} else {
-		ptemplong = (u32 *)pbuffer;
-		for (i = 0; i < len / 4; i++) {
-			templong = inl(dev->base_addr + FT1000_REG_MAG_DFR);
-			pr_debug("Data = 0x%8x\n", templong);
-			*ptemplong++ = templong;
-		}
-
-		/* Need to read one more word if odd align. */
-		if (len & 0x0003) {
-			templong = inl(dev->base_addr + FT1000_REG_MAG_DFR);
-			pr_debug("Data = 0x%8x\n", templong);
-			*ptemplong++ = templong;
-		}
-
-	}
-
-	pr_debug("Data passed to Protocol layer:\n");
-	for (i = 0; i < len + 12; i++)
-		pr_debug("Protocol Data: 0x%x\n", *ptemp++);
-
-	skb->dev = dev;
-	skb->protocol = eth_type_trans(skb, dev);
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
-	netif_rx(skb);
-
-	info->stats.rx_packets++;
-	/* Add on 12 bytes for MAC address which was removed */
-	info->stats.rx_bytes += (len + 12);
-
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		/* track how many bytes have been read from FIFO - round up to
-		 * 16 bit word */
-		tempword = len + 16;
-		if (tempword & 0x01)
-			tempword++;
-		info->fifo_cnt += tempword;
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_ADDR, FT1000_FIFO_LEN);
-		ft1000_write_reg(dev, FT1000_REG_DPRAM_DATA, info->fifo_cnt);
-	}
-
-	return SUCCESS;
-}
-
-/*---------------------------------------------------------------------------
-
-  Function:   ft1000_copy_down_pkt
-  Description: This function will take an ethernet packet and convert it to
-  a Flarion packet prior to sending it to the ASIC Downlink
-  FIFO.
-  Input:
-  dev    - device structure
-  packet - address of ethernet packet
-  len    - length of IP packet
-  Output:
-  status - FAILURE
-  SUCCESS
-
-  -------------------------------------------------------------------------*/
-static int ft1000_copy_down_pkt(struct net_device *dev, u16 *packet, u16 len)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	struct ft1000_pcmcia *pcmcia = info->priv;
-	union {
-		struct pseudo_hdr blk;
-		u16 buff[sizeof(struct pseudo_hdr) >> 1];
-		u8 buffc[sizeof(struct pseudo_hdr)];
-	} pseudo;
-	int i;
-	u32 *plong;
-
-	/* Check if there is room on the FIFO */
-	if (len > ft1000_read_fifo_len(dev)) {
-		udelay(10);
-		if (len > ft1000_read_fifo_len(dev))
-			udelay(20);
-		if (len > ft1000_read_fifo_len(dev))
-			udelay(20);
-		if (len > ft1000_read_fifo_len(dev))
-			udelay(20);
-		if (len > ft1000_read_fifo_len(dev))
-			udelay(20);
-		if (len > ft1000_read_fifo_len(dev))
-			udelay(20);
-		if (len > ft1000_read_fifo_len(dev)) {
-			pr_debug("Transmit FIFO is full - pkt drop\n");
-			info->stats.tx_errors++;
-			return SUCCESS;
-		}
-	}
-	/* Create pseudo header and send pseudo/ip to hardware */
-	if (info->AsicID == ELECTRABUZZ_ID)
-		pseudo.blk.length = len;
-	else
-		pseudo.blk.length = ntohs(len);
-
-	pseudo.blk.source = DSPID;	/* Need to swap to get in correct
-					   order */
-	pseudo.blk.destination = HOSTID;
-	pseudo.blk.portdest = NETWORKID;	/* Need to swap to get in
-						   correct order */
-	pseudo.blk.portsrc = DSPAIRID;
-	pseudo.blk.sh_str_id = 0;
-	pseudo.blk.control = 0;
-	pseudo.blk.rsvd1 = 0;
-	pseudo.blk.seq_num = 0;
-	pseudo.blk.rsvd2 = pcmcia->packetseqnum++;
-	pseudo.blk.qos_class = 0;
-	/* Calculate pseudo header checksum */
-	pseudo.blk.checksum = pseudo.buff[0];
-	for (i = 1; i < 7; i++)
-		pseudo.blk.checksum ^= pseudo.buff[i];
-
-	/* Production Mode */
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		/* copy first word to UFIFO_BEG reg */
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_BEG, pseudo.buff[0]);
-		pr_debug("data 0 BEG = 0x%04x\n", pseudo.buff[0]);
-
-		/* copy subsequent words to UFIFO_MID reg */
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_MID, pseudo.buff[1]);
-		pr_debug("data 1 MID = 0x%04x\n", pseudo.buff[1]);
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_MID, pseudo.buff[2]);
-		pr_debug("data 2 MID = 0x%04x\n", pseudo.buff[2]);
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_MID, pseudo.buff[3]);
-		pr_debug("data 3 MID = 0x%04x\n", pseudo.buff[3]);
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_MID, pseudo.buff[4]);
-		pr_debug("data 4 MID = 0x%04x\n", pseudo.buff[4]);
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_MID, pseudo.buff[5]);
-		pr_debug("data 5 MID = 0x%04x\n", pseudo.buff[5]);
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_MID, pseudo.buff[6]);
-		pr_debug("data 6 MID = 0x%04x\n", pseudo.buff[6]);
-		ft1000_write_reg(dev, FT1000_REG_UFIFO_MID, pseudo.buff[7]);
-		pr_debug("data 7 MID = 0x%04x\n", pseudo.buff[7]);
-
-		/* Write PPP type + IP Packet into Downlink FIFO */
-		for (i = 0; i < (len >> 1) - 1; i++) {
-			ft1000_write_reg(dev, FT1000_REG_UFIFO_MID,
-					 htons(*packet));
-			pr_debug("data %d MID = 0x%04x\n",
-				 i + 8, htons(*packet));
-			packet++;
-		}
-
-		/* Check for odd byte */
-		if (len & 0x0001) {
-			ft1000_write_reg(dev, FT1000_REG_UFIFO_MID,
-					 htons(*packet));
-			pr_debug("data MID = 0x%04x\n", htons(*packet));
-			packet++;
-			ft1000_write_reg(dev, FT1000_REG_UFIFO_END,
-					 htons(*packet));
-			pr_debug("data %d MID = 0x%04x\n",
-				 i + 8, htons(*packet));
-		} else {
-			ft1000_write_reg(dev, FT1000_REG_UFIFO_END,
-					 htons(*packet));
-			pr_debug("data %d MID = 0x%04x\n",
-				 i + 8, htons(*packet));
-		}
-	} else {
-		outl(*(u32 *)&pseudo.buff[0],
-		     dev->base_addr + FT1000_REG_MAG_UFDR);
-		pr_debug("Pseudo = 0x%8x\n", *(u32 *)&pseudo.buff[0]);
-		outl(*(u32 *)&pseudo.buff[2],
-		     dev->base_addr + FT1000_REG_MAG_UFDR);
-		pr_debug("Pseudo = 0x%8x\n", *(u32 *)&pseudo.buff[2]);
-		outl(*(u32 *)&pseudo.buff[4],
-		     dev->base_addr + FT1000_REG_MAG_UFDR);
-		pr_debug("Pseudo = 0x%8x\n", *(u32 *)&pseudo.buff[4]);
-		outl(*(u32 *)&pseudo.buff[6],
-		     dev->base_addr + FT1000_REG_MAG_UFDR);
-		pr_debug("Pseudo = 0x%8x\n", *(u32 *)&pseudo.buff[6]);
-
-		plong = (u32 *)packet;
-		/* Write PPP type + IP Packet into Downlink FIFO */
-		for (i = 0; i < (len >> 2); i++)
-			outl(*plong++, dev->base_addr + FT1000_REG_MAG_UFDR);
-
-		/* Check for odd alignment */
-		if (len & 0x0003) {
-			pr_debug("data = 0x%8x\n", *plong);
-			outl(*plong++, dev->base_addr + FT1000_REG_MAG_UFDR);
-		}
-		outl(1, dev->base_addr + FT1000_REG_MAG_UFER);
-	}
-
-	info->stats.tx_packets++;
-	/* Add 14 bytes for MAC address plus ethernet type */
-	info->stats.tx_bytes += (len + 14);
-	return SUCCESS;
-}
-
-static struct net_device_stats *ft1000_stats(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-
-	return &info->stats;
-}
-
-static int ft1000_open(struct net_device *dev)
-{
-	ft1000_reset_card(dev);
-
-	/* schedule ft1000_hbchk to perform periodic heartbeat checks on DSP
-	 * and ASIC */
-	init_timer(&poll_timer);
-	poll_timer.expires = jiffies + (2 * HZ);
-	poll_timer.data = (u_long)dev;
-	add_timer(&poll_timer);
-
-	return 0;
-}
-
-static int ft1000_close(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-
-	info->CardReady = 0;
-	del_timer(&poll_timer);
-
-	if (ft1000_card_present == 1) {
-		pr_debug("Media is down\n");
-		netif_stop_queue(dev);
-
-		ft1000_disable_interrupts(dev);
-		ft1000_write_reg(dev, FT1000_REG_RESET, DSP_RESET_BIT);
-
-		/* reset ASIC */
-		ft1000_reset_asic(dev);
-	}
-	return 0;
-}
-
-static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	u8 *pdata;
-
-	if (skb == NULL) {
-		pr_debug("skb == NULL!!!\n");
-		return 0;
-	}
-
-	pr_debug("length of packet = %d\n", skb->len);
-
-	pdata = (u8 *)skb->data;
-
-	if (info->mediastate == 0) {
-		/* Drop packet is mediastate is down */
-		pr_debug("mediastate is down\n");
-		return SUCCESS;
-	}
-
-	if ((skb->len < ENET_HEADER_SIZE) || (skb->len > ENET_MAX_SIZE)) {
-		/* Drop packet which has invalid size */
-		pr_debug("invalid ethernet length\n");
-		return SUCCESS;
-	}
-	ft1000_copy_down_pkt(dev, (u16 *) (pdata + ENET_HEADER_SIZE - 2),
-			     skb->len - ENET_HEADER_SIZE + 2);
-
-	dev_kfree_skb(skb);
-
-	return 0;
-}
-
-static irqreturn_t ft1000_interrupt(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	struct ft1000_info *info = netdev_priv(dev);
-	u16 tempword;
-	u16 inttype;
-	int cnt;
-
-	if (info->CardReady == 0) {
-		ft1000_disable_interrupts(dev);
-		return IRQ_HANDLED;
-	}
-
-	if (ft1000_chkcard(dev) == false) {
-		ft1000_disable_interrupts(dev);
-		return IRQ_HANDLED;
-	}
-
-	ft1000_disable_interrupts(dev);
-
-	/* Read interrupt type */
-	inttype = ft1000_read_reg(dev, FT1000_REG_SUP_ISR);
-
-	/* Make sure we process all interrupt before leaving the ISR due to the
-	 * edge trigger interrupt type */
-	while (inttype) {
-		if (inttype & ISR_DOORBELL_PEND)
-			ft1000_parse_dpram_msg(dev);
-
-		if (inttype & ISR_RCV) {
-			pr_debug("Data in FIFO\n");
-
-			cnt = 0;
-			do {
-				/* Check if we have packets in the Downlink
-				 * FIFO */
-				if (info->AsicID == ELECTRABUZZ_ID) {
-					tempword = ft1000_read_reg(dev,
-							FT1000_REG_DFIFO_STAT);
-				} else {
-					tempword = ft1000_read_reg(dev,
-							FT1000_REG_MAG_DFSR);
-				}
-				if (!(tempword & 0x1f))
-					break;
-				ft1000_copy_up_pkt(dev);
-				cnt++;
-			} while (cnt < MAX_RCV_LOOP);
-
-		}
-		/* clear interrupts */
-		tempword = ft1000_read_reg(dev, FT1000_REG_SUP_ISR);
-		pr_debug("interrupt status register = 0x%x\n", tempword);
-		ft1000_write_reg(dev, FT1000_REG_SUP_ISR, tempword);
-
-		/* Read interrupt type */
-		inttype = ft1000_read_reg(dev, FT1000_REG_SUP_ISR);
-		pr_debug("interrupt status register after clear = 0x%x\n",
-			 inttype);
-	}
-	ft1000_enable_interrupts(dev);
-	return IRQ_HANDLED;
-}
-
-void stop_ft1000_card(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	struct prov_record *ptr;
-	struct prov_record *tmp;
-	/* int cnt; */
-
-	info->CardReady = 0;
-	ft1000_card_present = 0;
-	netif_stop_queue(dev);
-	ft1000_disable_interrupts(dev);
-
-	/* Make sure we free any memory reserve for provisioning */
-	list_for_each_entry_safe(ptr, tmp, &info->prov_list, list) {
-		list_del(&ptr->list);
-		kfree(ptr->pprov_data);
-		kfree(ptr);
-	}
-
-	kfree(info->priv);
-
-	if (info->registered) {
-		unregister_netdev(dev);
-		info->registered = 0;
-	}
-
-	free_irq(dev->irq, dev);
-	release_region(dev->base_addr, 256);
-	release_firmware(fw_entry);
-	flarion_ft1000_cnt--;
-
-}
-
-static void ft1000_get_drvinfo(struct net_device *dev,
-			       struct ethtool_drvinfo *info)
-{
-	struct ft1000_info *ft_info;
-
-	ft_info = netdev_priv(dev);
-
-	strlcpy(info->driver, "ft1000", sizeof(info->driver));
-	snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx",
-		 dev->base_addr);
-	snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d.%d",
-		 ft_info->DspVer[0], ft_info->DspVer[1], ft_info->DspVer[2],
-		 ft_info->DspVer[3]);
-}
-
-static u32 ft1000_get_link(struct net_device *dev)
-{
-	struct ft1000_info *info;
-
-	info = netdev_priv(dev);
-	return info->mediastate;
-}
-
-static const struct ethtool_ops ops = {
-	.get_drvinfo = ft1000_get_drvinfo,
-	.get_link = ft1000_get_link
-};
-
-struct net_device *init_ft1000_card(struct pcmcia_device *link,
-				    void *ft1000_reset)
-{
-	struct ft1000_info *info;
-	struct ft1000_pcmcia *pcmcia;
-	struct net_device *dev;
-
-	static const struct net_device_ops ft1000ops = {
-			.ndo_open = &ft1000_open,
-			.ndo_stop = &ft1000_close,
-			.ndo_start_xmit = &ft1000_start_xmit,
-			.ndo_get_stats = &ft1000_stats,
-		};
-
-	pr_debug("irq = %d, port = 0x%04llx\n",
-		 link->irq, (unsigned long long)link->resource[0]->start);
-
-	flarion_ft1000_cnt++;
-
-	if (flarion_ft1000_cnt > 1) {
-		flarion_ft1000_cnt--;
-
-		dev_info(&link->dev,
-			 "This driver can not support more than one instance\n");
-		return NULL;
-	}
-
-	dev = alloc_etherdev(sizeof(struct ft1000_info));
-	if (!dev) {
-		dev_err(&link->dev, "Failed to allocate etherdev\n");
-		return NULL;
-	}
-
-	SET_NETDEV_DEV(dev, &link->dev);
-	info = netdev_priv(dev);
-
-	memset(info, 0, sizeof(struct ft1000_info));
-
-	pr_debug("address of dev = 0x%p\n", dev);
-	pr_debug("address of dev info = 0x%p\n", info);
-	pr_debug("device name = %s\n", dev->name);
-
-	memset(&info->stats, 0, sizeof(struct net_device_stats));
-
-	info->priv = kzalloc(sizeof(struct ft1000_pcmcia), GFP_KERNEL);
-	pcmcia = info->priv;
-	pcmcia->link = link;
-
-	spin_lock_init(&info->dpram_lock);
-	info->DrvErrNum = 0;
-	info->registered = 1;
-	info->ft1000_reset = ft1000_reset;
-	info->mediastate = 0;
-	info->fifo_cnt = 0;
-	info->CardReady = 0;
-	info->DSP_TIME[0] = 0;
-	info->DSP_TIME[1] = 0;
-	info->DSP_TIME[2] = 0;
-	info->DSP_TIME[3] = 0;
-	flarion_ft1000_cnt = 0;
-
-	INIT_LIST_HEAD(&info->prov_list);
-
-	info->squeseqnum = 0;
-
-	/* dev->hard_start_xmit = &ft1000_start_xmit; */
-	/* dev->get_stats = &ft1000_stats; */
-	/* dev->open = &ft1000_open; */
-	/* dev->stop = &ft1000_close; */
-
-	dev->netdev_ops = &ft1000ops;
-
-	pr_debug("device name = %s\n", dev->name);
-
-	dev->irq = link->irq;
-	dev->base_addr = link->resource[0]->start;
-	if (pcmcia_get_mac_from_cis(link, dev)) {
-		netdev_err(dev, "Could not read mac address\n");
-		goto err_dev;
-	}
-
-	if (request_irq(dev->irq, ft1000_interrupt, IRQF_SHARED, dev->name,
-			dev)) {
-		netdev_err(dev, "Could not request_irq\n");
-		goto err_dev;
-	}
-
-	if (request_region(dev->base_addr, 256, dev->name) == NULL) {
-		netdev_err(dev, "Could not request_region\n");
-		goto err_irq;
-	}
-
-	if (register_netdev(dev)) {
-		pr_debug("Could not register netdev\n");
-		goto err_reg;
-	}
-
-	info->AsicID = ft1000_read_reg(dev, FT1000_REG_ASIC_ID);
-	if (info->AsicID == ELECTRABUZZ_ID) {
-		pr_debug("ELECTRABUZZ ASIC\n");
-		if (request_firmware(&fw_entry, "ft1000.img",
-				     &link->dev) != 0) {
-			pr_info("Could not open ft1000.img\n");
-			goto err_unreg;
-		}
-	} else {
-		pr_debug("MAGNEMITE ASIC\n");
-		if (request_firmware(&fw_entry, "ft2000.img",
-				     &link->dev) != 0) {
-			pr_info("Could not open ft2000.img\n");
-			goto err_unreg;
-		}
-	}
-
-	ft1000_enable_interrupts(dev);
-
-	ft1000_card_present = 1;
-	dev->ethtool_ops = &ops;
-	pr_info("%s: addr 0x%04lx irq %d, MAC addr %pM\n",
-		dev->name, dev->base_addr, dev->irq, dev->dev_addr);
-	return dev;
-
-err_unreg:
-	unregister_netdev(dev);
-err_reg:
-	release_region(dev->base_addr, 256);
-err_irq:
-	free_irq(dev->irq, dev);
-err_dev:
-	free_netdev(dev);
-	return NULL;
-}
diff --git a/drivers/staging/ft1000/ft1000-usb/Makefile b/drivers/staging/ft1000/ft1000-usb/Makefile
deleted file mode 100644
index 7c4b78456254..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_FT1000_USB) += ft1000.o
-
-ft1000-y := ft1000_debug.o ft1000_download.o ft1000_hw.o ft1000_usb.o
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c b/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c
deleted file mode 100644
index f241a3a5a684..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_debug.c
+++ /dev/null
@@ -1,789 +0,0 @@
-/*
- *---------------------------------------------------------------------------
- * FT1000 driver for Flarion Flash OFDM NIC Device
- *
- * Copyright (C) 2006 Flarion Technologies, All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) any
- * later version. This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details. You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place -
- * Suite 330, Boston, MA 02111-1307, USA.
- *---------------------------------------------------------------------------
- *
- * File:         ft1000_chdev.c
- *
- * Description:  Custom character device dispatch routines.
- *
- * History:
- * 8/29/02    Whc                Ported to Linux.
- * 6/05/06    Whc                Porting to Linux 2.6.9
- *
- *---------------------------------------------------------------------------
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/poll.h>
-#include <linux/netdevice.h>
-#include <linux/delay.h>
-
-#include <linux/ioctl.h>
-#include <linux/debugfs.h>
-#include "ft1000_usb.h"
-
-static int ft1000_flarion_cnt;
-
-static int ft1000_open(struct inode *inode, struct file *file);
-static unsigned int ft1000_poll_dev(struct file *file, poll_table *wait);
-static long ft1000_ioctl(struct file *file, unsigned int command,
-			 unsigned long argument);
-static int ft1000_release(struct inode *inode, struct file *file);
-
-/* List to free receive command buffer pool */
-struct list_head freercvpool;
-
-/* lock to arbitrate free buffer list for receive command data */
-spinlock_t free_buff_lock;
-
-int numofmsgbuf;
-
-/*
- * Table of entry-point routines for char device
- */
-static const struct file_operations ft1000fops = {
-	.unlocked_ioctl	= ft1000_ioctl,
-	.poll		= ft1000_poll_dev,
-	.open		= ft1000_open,
-	.release	= ft1000_release,
-	.llseek		= no_llseek,
-};
-
-/*
-  ---------------------------------------------------------------------------
-  * Function:    ft1000_get_buffer
-  *
-  * Parameters:
-  *
-  * Returns:
-  *
-  * Description:
-  *
-  * Notes:
-  *
-  *---------------------------------------------------------------------------
-  */
-struct dpram_blk *ft1000_get_buffer(struct list_head *bufflist)
-{
-	unsigned long flags;
-	struct dpram_blk *ptr;
-
-	spin_lock_irqsave(&free_buff_lock, flags);
-	/* Check if buffer is available */
-	if (list_empty(bufflist)) {
-		pr_debug("No more buffer - %d\n", numofmsgbuf);
-		ptr = NULL;
-	} else {
-		numofmsgbuf--;
-		ptr = list_entry(bufflist->next, struct dpram_blk, list);
-		list_del(&ptr->list);
-		/* pr_debug("number of free msg buffers = %d\n", numofmsgbuf); */
-	}
-	spin_unlock_irqrestore(&free_buff_lock, flags);
-
-	return ptr;
-}
-
-
-
-
-/*
- *---------------------------------------------------------------------------
- * Function:    ft1000_free_buffer
- *
- * Parameters:
- *
- * Returns:
- *
- * Description:
- *
- * Notes:
- *
- *---------------------------------------------------------------------------
- */
-void ft1000_free_buffer(struct dpram_blk *pdpram_blk, struct list_head *plist)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&free_buff_lock, flags);
-	/* Put memory back to list */
-	list_add_tail(&pdpram_blk->list, plist);
-	numofmsgbuf++;
-	/*pr_debug("number of free msg buffers = %d\n", numofmsgbuf); */
-	spin_unlock_irqrestore(&free_buff_lock, flags);
-}
-
-/*
- *---------------------------------------------------------------------------
- * Function:    ft1000_CreateDevice
- *
- * Parameters:  dev - pointer to adapter object
- *
- * Returns:     0 if successful
- *
- * Description: Creates a private char device.
- *
- * Notes:       Only called by init_module().
- *
- *---------------------------------------------------------------------------
- */
-int ft1000_create_dev(struct ft1000_usb *dev)
-{
-	int result;
-	int i;
-	struct dentry *dir, *file;
-	struct ft1000_debug_dirs *tmp;
-
-	/* make a new device name */
-	sprintf(dev->DeviceName, "%s%d", "FT1000_", dev->CardNumber);
-
-	pr_debug("number of instance = %d\n", ft1000_flarion_cnt);
-	pr_debug("DeviceCreated = %x\n", dev->DeviceCreated);
-
-	if (dev->DeviceCreated) {
-		pr_debug("\"%s\" already registered\n", dev->DeviceName);
-		return -EIO;
-	}
-
-
-	/* register the device */
-	pr_debug("\"%s\" debugfs device registration\n", dev->DeviceName);
-
-	tmp = kmalloc(sizeof(struct ft1000_debug_dirs), GFP_KERNEL);
-	if (tmp == NULL) {
-		result = -1;
-		goto fail;
-	}
-
-	dir = debugfs_create_dir(dev->DeviceName, NULL);
-	if (IS_ERR(dir)) {
-		result = PTR_ERR(dir);
-		goto debug_dir_fail;
-	}
-
-	file = debugfs_create_file("device", S_IRUGO | S_IWUSR, dir,
-				   dev, &ft1000fops);
-	if (IS_ERR(file)) {
-		result = PTR_ERR(file);
-		goto debug_file_fail;
-	}
-
-	tmp->dent = dir;
-	tmp->file = file;
-	tmp->int_number = dev->CardNumber;
-	list_add(&tmp->list, &dev->nodes.list);
-
-	pr_debug("registered debugfs directory \"%s\"\n", dev->DeviceName);
-
-	/* initialize application information */
-	dev->appcnt = 0;
-	for (i = 0; i < MAX_NUM_APP; i++) {
-		dev->app_info[i].nTxMsg = 0;
-		dev->app_info[i].nRxMsg = 0;
-		dev->app_info[i].nTxMsgReject = 0;
-		dev->app_info[i].nRxMsgMiss = 0;
-		dev->app_info[i].fileobject = NULL;
-		dev->app_info[i].app_id = i+1;
-		dev->app_info[i].DspBCMsgFlag = 0;
-		dev->app_info[i].NumOfMsg = 0;
-		init_waitqueue_head(&dev->app_info[i].wait_dpram_msg);
-		INIT_LIST_HEAD(&dev->app_info[i].app_sqlist);
-	}
-
-	dev->DeviceCreated = TRUE;
-	ft1000_flarion_cnt++;
-
-	return 0;
-
-debug_file_fail:
-	debugfs_remove(dir);
-debug_dir_fail:
-	kfree(tmp);
-fail:
-	return result;
-}
-
-/*
- *---------------------------------------------------------------------------
- * Function:    ft1000_DestroyDeviceDEBUG
- *
- * Parameters:  dev - pointer to adapter object
- *
- * Description: Destroys a private char device.
- *
- * Notes:       Only called by cleanup_module().
- *
- *---------------------------------------------------------------------------
- */
-void ft1000_destroy_dev(struct net_device *netdev)
-{
-	struct ft1000_info *info = netdev_priv(netdev);
-	struct ft1000_usb *dev = info->priv;
-	int i;
-	struct dpram_blk *pdpram_blk;
-	struct dpram_blk *ptr;
-	struct list_head *pos, *q;
-	struct ft1000_debug_dirs *dir;
-
-	if (dev->DeviceCreated) {
-		ft1000_flarion_cnt--;
-		list_for_each_safe(pos, q, &dev->nodes.list) {
-			dir = list_entry(pos, struct ft1000_debug_dirs, list);
-			if (dir->int_number == dev->CardNumber) {
-				debugfs_remove(dir->file);
-				debugfs_remove(dir->dent);
-				list_del(pos);
-				kfree(dir);
-			}
-		}
-		pr_debug("unregistered device \"%s\"\n", dev->DeviceName);
-
-		/* Make sure we free any memory reserve for slow Queue */
-		for (i = 0; i < MAX_NUM_APP; i++) {
-			while (list_empty(&dev->app_info[i].app_sqlist) == 0) {
-				pdpram_blk = list_entry(dev->app_info[i].app_sqlist.next,
-							struct dpram_blk, list);
-				list_del(&pdpram_blk->list);
-				ft1000_free_buffer(pdpram_blk, &freercvpool);
-
-			}
-			wake_up_interruptible(&dev->app_info[i].wait_dpram_msg);
-		}
-
-		/* Remove buffer allocated for receive command data */
-		if (ft1000_flarion_cnt == 0) {
-			while (list_empty(&freercvpool) == 0) {
-				ptr = list_entry(freercvpool.next, struct dpram_blk, list);
-				list_del(&ptr->list);
-				kfree(ptr->pbuffer);
-				kfree(ptr);
-			}
-		}
-		dev->DeviceCreated = FALSE;
-	}
-
-
-}
-
-/*
- *---------------------------------------------------------------------------
- * Function:    ft1000_open
- *
- * Parameters:
- *
- * Description:
- *
- * Notes:
- *
- *---------------------------------------------------------------------------
- */
-static int ft1000_open(struct inode *inode, struct file *file)
-{
-	struct ft1000_info *info;
-	struct ft1000_usb *dev = (struct ft1000_usb *)inode->i_private;
-	int i, num;
-
-	num = MINOR(inode->i_rdev) & 0xf;
-	pr_debug("minor number=%d\n", num);
-
-	info = file->private_data = netdev_priv(dev->net);
-
-	pr_debug("f_owner = %p number of application = %d\n",
-		 &file->f_owner, dev->appcnt);
-
-	/* Check if maximum number of application exceeded */
-	if (dev->appcnt > MAX_NUM_APP) {
-		pr_debug("Maximum number of application exceeded\n");
-		return -EACCES;
-	}
-
-	/* Search for available application info block */
-	for (i = 0; i < MAX_NUM_APP; i++) {
-		if (dev->app_info[i].fileobject == NULL)
-			break;
-	}
-
-	/* Fail due to lack of application info block */
-	if (i == MAX_NUM_APP) {
-		pr_debug("Could not find an application info block\n");
-		return -EACCES;
-	}
-
-	dev->appcnt++;
-	dev->app_info[i].fileobject = &file->f_owner;
-	dev->app_info[i].nTxMsg = 0;
-	dev->app_info[i].nRxMsg = 0;
-	dev->app_info[i].nTxMsgReject = 0;
-	dev->app_info[i].nRxMsgMiss = 0;
-
-	nonseekable_open(inode, file);
-	return 0;
-}
-
-
-/*
- *---------------------------------------------------------------------------
- * Function:    ft1000_poll_dev
- *
- * Parameters:
- *
- * Description:
- *
- * Notes:
- *
- *---------------------------------------------------------------------------
- */
-
-static unsigned int ft1000_poll_dev(struct file *file, poll_table *wait)
-{
-	struct net_device *netdev = file->private_data;
-	struct ft1000_info *info = netdev_priv(netdev);
-	struct ft1000_usb *dev = info->priv;
-	int i;
-
-	if (ft1000_flarion_cnt == 0) {
-		pr_debug("called with ft1000_flarion_cnt value zero\n");
-		return -EBADF;
-	}
-
-	/* Search for matching file object */
-	for (i = 0; i < MAX_NUM_APP; i++) {
-		if (dev->app_info[i].fileobject == &file->f_owner) {
-			/* pr_debug("Message is for AppId = %d\n", dev->app_info[i].app_id); */
-			break;
-		}
-	}
-
-	/* Could not find application info block */
-	if (i == MAX_NUM_APP) {
-		pr_debug("Could not find application info block\n");
-		return -EACCES;
-	}
-
-	if (list_empty(&dev->app_info[i].app_sqlist) == 0) {
-		pr_debug("Message detected in slow queue\n");
-		return(POLLIN | POLLRDNORM | POLLPRI);
-	}
-
-	poll_wait(file, &dev->app_info[i].wait_dpram_msg, wait);
-	/* pr_debug("Polling for data from DSP\n"); */
-
-	return 0;
-}
-
-/*
- *---------------------------------------------------------------------------
- * Function:    ft1000_ioctl
- *
- * Parameters:
- *
- * Description:
- *
- * Notes:
- *
- *---------------------------------------------------------------------------
- */
-static long ft1000_ioctl(struct file *file, unsigned int command,
-			 unsigned long argument)
-{
-	void __user *argp = (void __user *)argument;
-	struct ft1000_info *info;
-	struct ft1000_usb *ft1000dev;
-	int result = 0;
-	int cmd;
-	int i;
-	u16 tempword;
-	unsigned long flags;
-	struct timeval tv;
-	struct IOCTL_GET_VER get_ver_data;
-	struct IOCTL_GET_DSP_STAT get_stat_data;
-	u8 ConnectionMsg[] = {
-		0x00, 0x44, 0x10, 0x20, 0x80, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x93, 0x64,
-		0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x0a,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12,
-		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0x00, 0x00, 0x02, 0x37, 0x00, 0x00, 0x00, 0x08,
-		0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x7f, 0x00,
-		0x00, 0x01, 0x00, 0x00
-	};
-
-	unsigned short ledStat = 0;
-	unsigned short conStat = 0;
-
-	if (ft1000_flarion_cnt == 0) {
-		pr_debug("called with ft1000_flarion_cnt of zero\n");
-		return -EBADF;
-	}
-
-	/* pr_debug("command = 0x%x argument = 0x%8x\n", command, (u32)argument); */
-
-	info = file->private_data;
-	ft1000dev = info->priv;
-	cmd = _IOC_NR(command);
-	/* pr_debug("cmd = 0x%x\n", cmd); */
-
-	/* process the command */
-	switch (cmd) {
-	case IOCTL_REGISTER_CMD:
-		pr_debug("IOCTL_FT1000_REGISTER called\n");
-		result = get_user(tempword, (__u16 __user *)argp);
-		if (result) {
-			pr_debug("result = %d failed to get_user\n", result);
-			break;
-		}
-		if (tempword == DSPBCMSGID) {
-			/* Search for matching file object */
-			for (i = 0; i < MAX_NUM_APP; i++) {
-				if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
-					ft1000dev->app_info[i].DspBCMsgFlag = 1;
-					pr_debug("Registered for broadcast messages\n");
-					break;
-				}
-			}
-		}
-		break;
-
-	case IOCTL_GET_VER_CMD:
-		pr_debug("IOCTL_FT1000_GET_VER called\n");
-
-		get_ver_data.drv_ver = FT1000_DRV_VER;
-
-		if (copy_to_user(argp, &get_ver_data, sizeof(get_ver_data))) {
-			pr_debug("copy fault occurred\n");
-			result = -EFAULT;
-			break;
-		}
-
-		pr_debug("driver version = 0x%x\n",
-			 (unsigned int)get_ver_data.drv_ver);
-
-		break;
-	case IOCTL_CONNECT:
-		/* Connect Message */
-		pr_debug("IOCTL_FT1000_CONNECT\n");
-		ConnectionMsg[79] = 0xfc;
-		result = card_send_command(ft1000dev, ConnectionMsg, 0x4c);
-
-		break;
-	case IOCTL_DISCONNECT:
-		/* Disconnect Message */
-		pr_debug("IOCTL_FT1000_DISCONNECT\n");
-		ConnectionMsg[79] = 0xfd;
-		result = card_send_command(ft1000dev, ConnectionMsg, 0x4c);
-		break;
-	case IOCTL_GET_DSP_STAT_CMD:
-		/* pr_debug("IOCTL_FT1000_GET_DSP_STAT\n"); */
-		memset(&get_stat_data, 0, sizeof(get_stat_data));
-		memcpy(get_stat_data.DspVer, info->DspVer, DSPVERSZ);
-		memcpy(get_stat_data.HwSerNum, info->HwSerNum, HWSERNUMSZ);
-		memcpy(get_stat_data.Sku, info->Sku, SKUSZ);
-		memcpy(get_stat_data.eui64, info->eui64, EUISZ);
-
-		if (info->ProgConStat != 0xFF) {
-			ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_LED,
-					    (u8 *)&ledStat, FT1000_MAG_DSP_LED_INDX);
-			get_stat_data.LedStat = ntohs(ledStat);
-			pr_debug("LedStat = 0x%x\n", get_stat_data.LedStat);
-			ft1000_read_dpram16(ft1000dev, FT1000_MAG_DSP_CON_STATE,
-					    (u8 *)&conStat, FT1000_MAG_DSP_CON_STATE_INDX);
-			get_stat_data.ConStat = ntohs(conStat);
-			pr_debug("ConStat = 0x%x\n", get_stat_data.ConStat);
-		} else {
-			get_stat_data.ConStat = 0x0f;
-		}
-
-
-		get_stat_data.nTxPkts = info->stats.tx_packets;
-		get_stat_data.nRxPkts = info->stats.rx_packets;
-		get_stat_data.nTxBytes = info->stats.tx_bytes;
-		get_stat_data.nRxBytes = info->stats.rx_bytes;
-		do_gettimeofday(&tv);
-		get_stat_data.ConTm = (u32)(tv.tv_sec - info->ConTm);
-		pr_debug("Connection Time = %d\n", (int)get_stat_data.ConTm);
-		if (copy_to_user(argp, &get_stat_data, sizeof(get_stat_data))) {
-			pr_debug("copy fault occurred\n");
-			result = -EFAULT;
-			break;
-		}
-		pr_debug("GET_DSP_STAT succeed\n");
-		break;
-	case IOCTL_SET_DPRAM_CMD:
-	{
-		struct IOCTL_DPRAM_BLK *dpram_data = NULL;
-		/* struct IOCTL_DPRAM_COMMAND dpram_command; */
-		u16 qtype;
-		u16 msgsz;
-		struct pseudo_hdr *ppseudo_hdr;
-		u16 *pmsg;
-		u16 total_len;
-		u16 app_index;
-		u16 status;
-
-		/* pr_debug("IOCTL_FT1000_SET_DPRAM called\n");*/
-
-
-		if (ft1000_flarion_cnt == 0)
-			return -EBADF;
-
-		if (ft1000dev->DrvMsgPend)
-			return -ENOTTY;
-
-		if (ft1000dev->fProvComplete == 0)
-			return -EACCES;
-
-		ft1000dev->fAppMsgPend = true;
-
-		if (info->CardReady) {
-
-			/* pr_debug("try to SET_DPRAM\n"); */
-
-			/* Get the length field to see how many bytes to copy */
-			result = get_user(msgsz, (__u16 __user *)argp);
-			if (result)
-				break;
-			msgsz = ntohs(msgsz);
-			/* pr_debug("length of message = %d\n", msgsz); */
-
-			if (msgsz > MAX_CMD_SQSIZE) {
-				pr_debug("bad message length = %d\n", msgsz);
-				result = -EINVAL;
-				break;
-			}
-
-			result = -ENOMEM;
-			dpram_data = kmalloc(msgsz + 2, GFP_KERNEL);
-			if (!dpram_data)
-				break;
-
-			if (copy_from_user(dpram_data, argp, msgsz+2)) {
-				pr_debug("copy fault occurred\n");
-				result = -EFAULT;
-			} else {
-				/* Check if this message came from a registered application */
-				for (i = 0; i < MAX_NUM_APP; i++) {
-					if (ft1000dev->app_info[i].fileobject == &file->f_owner)
-						break;
-				}
-				if (i == MAX_NUM_APP) {
-					pr_debug("No matching application fileobject\n");
-					result = -EINVAL;
-					kfree(dpram_data);
-					break;
-				}
-				app_index = i;
-
-				/* Check message qtype type which is the lower byte within qos_class */
-				qtype = ntohs(dpram_data->pseudohdr.qos_class) & 0xff;
-				/* pr_debug("qtype = %d\n", qtype); */
-				if (!qtype) {
-					/* Put message into Slow Queue */
-					/* Only put a message into the DPRAM if msg doorbell is available */
-					status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
-					/* pr_debug("READ REGISTER tempword=%x\n", tempword); */
-					if (tempword & FT1000_DB_DPRAM_TX) {
-						/* Suspend for 2ms and try again due to DSP doorbell busy */
-						mdelay(2);
-						status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
-						if (tempword & FT1000_DB_DPRAM_TX) {
-							/* Suspend for 1ms and try again due to DSP doorbell busy */
-							mdelay(1);
-							status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
-							if (tempword & FT1000_DB_DPRAM_TX) {
-								status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
-								if (tempword & FT1000_DB_DPRAM_TX) {
-									/* Suspend for 3ms and try again due to DSP doorbell busy */
-									mdelay(3);
-									status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_DOORBELL);
-									if (tempword & FT1000_DB_DPRAM_TX) {
-										pr_debug("Doorbell not available\n");
-										result = -ENOTTY;
-										kfree(dpram_data);
-										break;
-									}
-								}
-							}
-						}
-					}
-
-					/*pr_debug("finished reading register\n"); */
-
-					/* Make sure we are within the limits of the slow queue memory limitation */
-					if ((msgsz < MAX_CMD_SQSIZE) && (msgsz > PSEUDOSZ)) {
-						/* Need to put sequence number plus new checksum for message */
-						pmsg = (u16 *)&dpram_data->pseudohdr;
-						ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-						total_len = msgsz+2;
-						if (total_len & 0x1)
-							total_len++;
-
-						/* Insert slow queue sequence number */
-						ppseudo_hdr->seq_num = info->squeseqnum++;
-						ppseudo_hdr->portsrc = ft1000dev->app_info[app_index].app_id;
-						/* Calculate new checksum */
-						ppseudo_hdr->checksum = *pmsg++;
-						/* pr_debug("checksum = 0x%x\n", ppseudo_hdr->checksum); */
-						for (i = 1; i < 7; i++) {
-							ppseudo_hdr->checksum ^= *pmsg++;
-							/* pr_debug("checksum = 0x%x\n", ppseudo_hdr->checksum); */
-						}
-						pmsg++;
-						ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-						result = card_send_command(ft1000dev, dpram_data, total_len+2);
-
-
-						ft1000dev->app_info[app_index].nTxMsg++;
-					} else {
-						result = -EINVAL;
-					}
-				}
-			}
-		} else {
-			pr_debug("Card not ready take messages\n");
-			result = -EACCES;
-		}
-		kfree(dpram_data);
-
-	}
-	break;
-	case IOCTL_GET_DPRAM_CMD:
-	{
-		struct dpram_blk *pdpram_blk;
-		struct IOCTL_DPRAM_BLK __user *pioctl_dpram;
-		int msglen;
-
-		/* pr_debug("IOCTL_FT1000_GET_DPRAM called\n"); */
-
-		if (ft1000_flarion_cnt == 0)
-			return -EBADF;
-
-		/* Search for matching file object */
-		for (i = 0; i < MAX_NUM_APP; i++) {
-			if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
-				/*pr_debug("Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
-				break;
-			}
-		}
-
-		/* Could not find application info block */
-		if (i == MAX_NUM_APP) {
-			pr_debug("Could not find application info block\n");
-			result = -EBADF;
-			break;
-		}
-
-		result = 0;
-		pioctl_dpram = argp;
-		if (list_empty(&ft1000dev->app_info[i].app_sqlist) == 0) {
-			/* pr_debug("Message detected in slow queue\n"); */
-			spin_lock_irqsave(&free_buff_lock, flags);
-			pdpram_blk = list_entry(ft1000dev->app_info[i].app_sqlist.next,
-						struct dpram_blk, list);
-			list_del(&pdpram_blk->list);
-			ft1000dev->app_info[i].NumOfMsg--;
-			/* pr_debug("NumOfMsg for app %d = %d\n", i, ft1000dev->app_info[i].NumOfMsg); */
-			spin_unlock_irqrestore(&free_buff_lock, flags);
-			msglen = ntohs(*(u16 *)pdpram_blk->pbuffer) + PSEUDOSZ;
-			result = get_user(msglen, &pioctl_dpram->total_len);
-			if (result)
-				break;
-			msglen = htons(msglen);
-			/* pr_debug("msg length = %x\n", msglen); */
-			if (copy_to_user(&pioctl_dpram->pseudohdr, pdpram_blk->pbuffer, msglen)) {
-				pr_debug("copy fault occurred\n");
-				result = -EFAULT;
-				break;
-			}
-
-			ft1000_free_buffer(pdpram_blk, &freercvpool);
-			result = msglen;
-		}
-		/* pr_debug("IOCTL_FT1000_GET_DPRAM no message\n"); */
-	}
-	break;
-
-	default:
-		pr_debug("unknown command: 0x%x\n", command);
-		result = -ENOTTY;
-		break;
-	}
-	ft1000dev->fAppMsgPend = false;
-	return result;
-}
-
-/*
- *---------------------------------------------------------------------------
- * Function:    ft1000_release
- *
- * Parameters:
- *
- * Description:
- *
- * Notes:
- *
- *---------------------------------------------------------------------------
- */
-static int ft1000_release(struct inode *inode, struct file *file)
-{
-	struct ft1000_info *info;
-	struct net_device *dev;
-	struct ft1000_usb *ft1000dev;
-	int i;
-	struct dpram_blk *pdpram_blk;
-	struct dpram_blk *tmp;
-
-	dev = file->private_data;
-	info = netdev_priv(dev);
-	ft1000dev = info->priv;
-
-	if (ft1000_flarion_cnt == 0) {
-		ft1000dev->appcnt--;
-		return -EBADF;
-	}
-
-	/* Search for matching file object */
-	for (i = 0; i < MAX_NUM_APP; i++) {
-		if (ft1000dev->app_info[i].fileobject == &file->f_owner) {
-			/* pr_debug("Message is for AppId = %d\n", ft1000dev->app_info[i].app_id); */
-			break;
-		}
-	}
-
-	if (i == MAX_NUM_APP)
-		return 0;
-
-	list_for_each_entry_safe(pdpram_blk, tmp, &ft1000dev->app_info[i].app_sqlist, list) {
-		pr_debug("Remove and free memory queue up on slow queue\n");
-		list_del(&pdpram_blk->list);
-		ft1000_free_buffer(pdpram_blk, &freercvpool);
-	}
-
-	/* initialize application information */
-	ft1000dev->appcnt--;
-	pr_debug("appcnt = %d\n", ft1000dev->appcnt);
-	ft1000dev->app_info[i].fileobject = NULL;
-
-	return 0;
-}
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
deleted file mode 100644
index 297b7aece506..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ /dev/null
@@ -1,1058 +0,0 @@
-/*
- * CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
- *
- * This file is part of Express Card USB Driver
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/usb.h>
-#include <linux/vmalloc.h>
-#include "ft1000_usb.h"
-
-
-#define  DWNLD_HANDSHAKE_LOC     0x02
-#define  DWNLD_TYPE_LOC          0x04
-#define  DWNLD_SIZE_MSW_LOC      0x06
-#define  DWNLD_SIZE_LSW_LOC      0x08
-#define  DWNLD_PS_HDR_LOC        0x0A
-
-#define  MAX_DSP_WAIT_LOOPS      40
-#define  DSP_WAIT_SLEEP_TIME     1000       /* 1 millisecond */
-#define  DSP_WAIT_DISPATCH_LVL   50         /* 50 usec */
-
-#define  HANDSHAKE_TIMEOUT_VALUE 0xF1F1
-#define  HANDSHAKE_RESET_VALUE   0xFEFE   /* When DSP requests startover */
-#define  HANDSHAKE_RESET_VALUE_USB   0xFE7E   /* When DSP requests startover */
-#define  HANDSHAKE_DSP_BL_READY  0xFEFE   /* At start DSP writes this when bootloader ready */
-#define  HANDSHAKE_DSP_BL_READY_USB  0xFE7E   /* At start DSP writes this when bootloader ready */
-#define  HANDSHAKE_DRIVER_READY  0xFFFF   /* Driver writes after receiving 0xFEFE */
-#define  HANDSHAKE_SEND_DATA     0x0000   /* DSP writes this when ready for more data */
-
-#define  HANDSHAKE_REQUEST       0x0001   /* Request from DSP */
-#define  HANDSHAKE_RESPONSE      0x0000   /* Satisfied DSP request */
-
-#define  REQUEST_CODE_LENGTH     0x0000
-#define  REQUEST_RUN_ADDRESS     0x0001
-#define  REQUEST_CODE_SEGMENT    0x0002   /* In WORD count */
-#define  REQUEST_DONE_BL         0x0003
-#define  REQUEST_DONE_CL         0x0004
-#define  REQUEST_VERSION_INFO    0x0005
-#define  REQUEST_CODE_BY_VERSION 0x0006
-#define  REQUEST_MAILBOX_DATA    0x0007
-#define  REQUEST_FILE_CHECKSUM   0x0008
-
-#define  STATE_START_DWNLD       0x01
-#define  STATE_BOOT_DWNLD        0x02
-#define  STATE_CODE_DWNLD        0x03
-#define  STATE_DONE_DWNLD        0x04
-#define  STATE_SECTION_PROV      0x05
-#define  STATE_DONE_PROV         0x06
-#define  STATE_DONE_FILE         0x07
-
-#define  MAX_LENGTH              0x7f0
-
-/* Temporary download mechanism for Magnemite */
-#define  DWNLD_MAG_TYPE_LOC          0x00
-#define  DWNLD_MAG_LEN_LOC           0x01
-#define  DWNLD_MAG_ADDR_LOC          0x02
-#define  DWNLD_MAG_CHKSUM_LOC        0x03
-#define  DWNLD_MAG_VAL_LOC           0x04
-
-#define  HANDSHAKE_MAG_DSP_BL_READY  0xFEFE0000   /* At start DSP writes this when bootloader ready */
-#define  HANDSHAKE_MAG_DSP_ENTRY     0x01000000   /* Dsp writes this to request for entry address */
-#define  HANDSHAKE_MAG_DSP_DATA      0x02000000   /* Dsp writes this to request for data block */
-#define  HANDSHAKE_MAG_DSP_DONE      0x03000000   /* Dsp writes this to indicate download done */
-
-#define  HANDSHAKE_MAG_DRV_READY     0xFFFF0000   /* Driver writes this to indicate ready to download */
-#define  HANDSHAKE_MAG_DRV_DATA      0x02FECDAB   /* Driver writes this to indicate data available to DSP */
-#define  HANDSHAKE_MAG_DRV_ENTRY     0x01FECDAB   /* Driver writes this to indicate entry point to DSP */
-
-#define  HANDSHAKE_MAG_TIMEOUT_VALUE 0xF1F1
-
-
-/* New Magnemite downloader */
-#define  DWNLD_MAG1_HANDSHAKE_LOC     0x00
-#define  DWNLD_MAG1_TYPE_LOC          0x01
-#define  DWNLD_MAG1_SIZE_LOC          0x02
-#define  DWNLD_MAG1_PS_HDR_LOC        0x03
-
-struct dsp_file_hdr {
-	long              version_id;          /* Version ID of this image format. */
-	long              package_id;          /* Package ID of code release. */
-	long              build_date;          /* Date/time stamp when file was built. */
-	long              commands_offset;     /* Offset to attached commands in Pseudo Hdr format. */
-	long              loader_offset;       /* Offset to bootloader code. */
-	long              loader_code_address; /* Start address of bootloader. */
-	long              loader_code_end;     /* Where bootloader code ends. */
-	long              loader_code_size;
-	long              version_data_offset; /* Offset were scrambled version data begins. */
-	long              version_data_size;   /* Size, in words, of scrambled version data. */
-	long              nDspImages;          /* Number of DSP images in file. */
-};
-
-struct dsp_image_info {
-	long              coff_date;           /* Date/time when DSP Coff image was built. */
-	long              begin_offset;        /* Offset in file where image begins. */
-	long              end_offset;          /* Offset in file where image begins. */
-	long              run_address;         /* On chip Start address of DSP code. */
-	long              image_size;          /* Size of image. */
-	long              version;             /* Embedded version # of DSP code. */
-	unsigned short    checksum;            /* DSP File checksum */
-	unsigned short    pad1;
-} __packed;
-
-
-/* checks if the doorbell register is cleared */
-static int check_usb_db(struct ft1000_usb *ft1000dev)
-{
-	int loopcnt;
-	u16 temp;
-	int status;
-
-	loopcnt = 0;
-
-	while (loopcnt < 10) {
-		status = ft1000_read_register(ft1000dev, &temp,
-					      FT1000_REG_DOORBELL);
-		pr_debug("read FT1000_REG_DOORBELL value is %x\n", temp);
-		if (temp & 0x0080) {
-			pr_debug("Got checkusb doorbell\n");
-			status = ft1000_write_register(ft1000dev, 0x0080,
-						       FT1000_REG_DOORBELL);
-			status = ft1000_write_register(ft1000dev, 0x0100,
-						       FT1000_REG_DOORBELL);
-			status = ft1000_write_register(ft1000dev,  0x8000,
-						       FT1000_REG_DOORBELL);
-			break;
-		}
-		loopcnt++;
-		msleep(10);
-
-	}
-
-	loopcnt = 0;
-	while (loopcnt < 20) {
-		status = ft1000_read_register(ft1000dev, &temp,
-					      FT1000_REG_DOORBELL);
-		pr_debug("Doorbell = 0x%x\n", temp);
-		if (temp & 0x8000) {
-			loopcnt++;
-			msleep(10);
-		} else	{
-			pr_debug("door bell is cleared, return 0\n");
-			return 0;
-		}
-	}
-
-	return -1;
-}
-
-/* gets the handshake and compares it with the expected value */
-static u16 get_handshake(struct ft1000_usb *ft1000dev, u16 expected_value)
-{
-	u16 handshake;
-	int loopcnt;
-	int status = 0;
-
-	loopcnt = 0;
-
-	while (loopcnt < 100) {
-		/* Need to clear downloader doorbell if Hartley ASIC */
-		status = ft1000_write_register(ft1000dev,  FT1000_DB_DNLD_RX,
-					       FT1000_REG_DOORBELL);
-		if (ft1000dev->fcodeldr) {
-			pr_debug("fcodeldr is %d\n", ft1000dev->fcodeldr);
-			ft1000dev->fcodeldr = 0;
-			status = check_usb_db(ft1000dev);
-			if (status != 0) {
-				pr_debug("check_usb_db failed\n");
-				break;
-			}
-			status = ft1000_write_register(ft1000dev,
-						       FT1000_DB_DNLD_RX,
-						       FT1000_REG_DOORBELL);
-		}
-
-		status = ft1000_read_dpram16(ft1000dev,
-					     DWNLD_MAG1_HANDSHAKE_LOC,
-					     (u8 *)&handshake, 1);
-		handshake = ntohs(handshake);
-
-		if (status)
-			return HANDSHAKE_TIMEOUT_VALUE;
-
-		if ((handshake == expected_value) ||
-		    (handshake == HANDSHAKE_RESET_VALUE_USB)) {
-			return handshake;
-		}
-		loopcnt++;
-		msleep(10);
-	}
-
-	return HANDSHAKE_TIMEOUT_VALUE;
-}
-
-/* write the handshake value to the handshake location */
-static void put_handshake(struct ft1000_usb *ft1000dev, u16 handshake_value)
-{
-	u32 tempx;
-	u16 tempword;
-	int status;
-
-	tempx = (u32)handshake_value;
-	tempx = ntohl(tempx);
-
-	tempword = (u16)(tempx & 0xffff);
-	status = ft1000_write_dpram16(ft1000dev, DWNLD_MAG1_HANDSHAKE_LOC,
-				      tempword, 0);
-	tempword = (u16)(tempx >> 16);
-	status = ft1000_write_dpram16(ft1000dev, DWNLD_MAG1_HANDSHAKE_LOC,
-				      tempword, 1);
-	status = ft1000_write_register(ft1000dev, FT1000_DB_DNLD_TX,
-				       FT1000_REG_DOORBELL);
-}
-
-static u16 get_handshake_usb(struct ft1000_usb *ft1000dev, u16 expected_value)
-{
-	u16 handshake;
-	int loopcnt;
-	u16 temp;
-	int status = 0;
-
-	loopcnt = 0;
-	handshake = 0;
-
-	while (loopcnt < 100) {
-		if (ft1000dev->usbboot == 2) {
-			status = ft1000_read_dpram32(ft1000dev, 0,
-						     (u8 *)&ft1000dev->tempbuf[0], 64);
-			for (temp = 0; temp < 16; temp++) {
-				pr_debug("tempbuf %d = 0x%x\n",
-					 temp, ft1000dev->tempbuf[temp]);
-			}
-			status = ft1000_read_dpram16(ft1000dev,
-						     DWNLD_MAG1_HANDSHAKE_LOC,
-						     (u8 *)&handshake, 1);
-			pr_debug("handshake from read_dpram16 = 0x%x\n",
-				 handshake);
-			if (ft1000dev->dspalive == ft1000dev->tempbuf[6]) {
-				handshake = 0;
-			} else {
-				handshake = ft1000dev->tempbuf[1];
-				ft1000dev->dspalive =
-					ft1000dev->tempbuf[6];
-			}
-		} else {
-			status = ft1000_read_dpram16(ft1000dev,
-						     DWNLD_MAG1_HANDSHAKE_LOC,
-						     (u8 *)&handshake, 1);
-		}
-
-		loopcnt++;
-		msleep(10);
-		handshake = ntohs(handshake);
-		if ((handshake == expected_value) ||
-		    (handshake == HANDSHAKE_RESET_VALUE_USB))
-			return handshake;
-	}
-
-	return HANDSHAKE_TIMEOUT_VALUE;
-}
-
-static void put_handshake_usb(struct ft1000_usb *ft1000dev, u16 handshake_value)
-{
-	int i;
-
-	for (i = 0; i < 1000; i++)
-		;
-}
-
-static u16 get_request_type(struct ft1000_usb *ft1000dev)
-{
-	u16 request_type;
-	int status;
-	u16 tempword;
-	u32 tempx;
-
-	if (ft1000dev->bootmode == 1) {
-		status = fix_ft1000_read_dpram32(ft1000dev,
-						 DWNLD_MAG1_TYPE_LOC,
-						 (u8 *)&tempx);
-		tempx = ntohl(tempx);
-	} else {
-		tempx = 0;
-		status = ft1000_read_dpram16(ft1000dev,
-					     DWNLD_MAG1_TYPE_LOC,
-					     (u8 *)&tempword, 1);
-		tempx |= (tempword << 16);
-		tempx = ntohl(tempx);
-	}
-	request_type = (u16)tempx;
-
-	return request_type;
-}
-
-static u16 get_request_type_usb(struct ft1000_usb *ft1000dev)
-{
-	u16 request_type;
-	int status;
-	u16 tempword;
-	u32 tempx;
-
-	if (ft1000dev->bootmode == 1) {
-		status = fix_ft1000_read_dpram32(ft1000dev,
-						 DWNLD_MAG1_TYPE_LOC,
-						 (u8 *)&tempx);
-		tempx = ntohl(tempx);
-	} else {
-		if (ft1000dev->usbboot == 2) {
-			tempx = ft1000dev->tempbuf[2];
-			tempword = ft1000dev->tempbuf[3];
-		} else {
-			tempx = 0;
-			status = ft1000_read_dpram16(ft1000dev,
-						     DWNLD_MAG1_TYPE_LOC,
-						     (u8 *)&tempword, 1);
-		}
-		tempx |= (tempword << 16);
-		tempx = ntohl(tempx);
-	}
-	request_type = (u16)tempx;
-
-	return request_type;
-}
-
-static long get_request_value(struct ft1000_usb *ft1000dev)
-{
-	u32 value;
-	u16 tempword;
-	int status;
-
-	if (ft1000dev->bootmode == 1) {
-		status = fix_ft1000_read_dpram32(ft1000dev,
-						 DWNLD_MAG1_SIZE_LOC,
-						 (u8 *)&value);
-		value = ntohl(value);
-	} else	{
-		status = ft1000_read_dpram16(ft1000dev,
-					     DWNLD_MAG1_SIZE_LOC,
-					     (u8 *)&tempword, 0);
-		value = tempword;
-		status = ft1000_read_dpram16(ft1000dev,
-					     DWNLD_MAG1_SIZE_LOC,
-					     (u8 *)&tempword, 1);
-		value |= (tempword << 16);
-		value = ntohl(value);
-	}
-
-	return value;
-}
-
-
-/* writes a value to DWNLD_MAG1_SIZE_LOC */
-static void put_request_value(struct ft1000_usb *ft1000dev, long lvalue)
-{
-	u32    tempx;
-	int    status;
-
-	tempx = ntohl(lvalue);
-	status = fix_ft1000_write_dpram32(ft1000dev, DWNLD_MAG1_SIZE_LOC,
-					  (u8 *)&tempx);
-}
-
-
-
-/* returns the checksum of the pseudo header */
-static u16 hdr_checksum(struct pseudo_hdr *pHdr)
-{
-	u16   *usPtr = (u16 *)pHdr;
-	u16   chksum;
-
-
-	chksum = (((((usPtr[0] ^ usPtr[1]) ^ usPtr[2]) ^ usPtr[3]) ^
-		    usPtr[4]) ^ usPtr[5]) ^ usPtr[6];
-
-	return chksum;
-}
-
-static int check_buffers(u16 *buff_w, u16 *buff_r, int len, int offset)
-{
-	int i;
-
-	for (i = 0; i < len; i++) {
-		if (buff_w[i] != buff_r[i + offset])
-			return -EREMOTEIO;
-	}
-
-	return 0;
-}
-
-static int write_dpram32_and_check(struct ft1000_usb *ft1000dev,
-				   u16 tempbuffer[], u16 dpram)
-{
-	int status;
-	u16 resultbuffer[64];
-	int i;
-
-	for (i = 0; i < 10; i++) {
-		status = ft1000_write_dpram32(ft1000dev, dpram,
-					      (u8 *)&tempbuffer[0], 64);
-		if (status == 0) {
-			/* Work around for ASIC bit stuffing problem. */
-			if ((tempbuffer[31] & 0xfe00) == 0xfe00) {
-				status = ft1000_write_dpram32(ft1000dev,
-							      dpram+12, (u8 *)&tempbuffer[24],
-							      64);
-			}
-			/* Let's check the data written */
-			status = ft1000_read_dpram32(ft1000dev, dpram,
-						     (u8 *)&resultbuffer[0], 64);
-			if ((tempbuffer[31] & 0xfe00) == 0xfe00) {
-				if (check_buffers(tempbuffer, resultbuffer, 28,
-						  0)) {
-					pr_debug("DPRAM write failed 1 during bootloading\n");
-					usleep_range(9000, 11000);
-					break;
-				}
-				status = ft1000_read_dpram32(ft1000dev,
-							     dpram+12,
-							     (u8 *)&resultbuffer[0], 64);
-
-				if (check_buffers(tempbuffer, resultbuffer, 16,
-						  24)) {
-					pr_debug("DPRAM write failed 2 during bootloading\n");
-					usleep_range(9000, 11000);
-					break;
-				}
-			} else {
-				if (check_buffers(tempbuffer, resultbuffer, 32,
-						  0)) {
-					pr_debug("DPRAM write failed 3 during bootloading\n");
-					usleep_range(9000, 11000);
-					break;
-				}
-			}
-			if (status == 0)
-				break;
-		}
-	}
-	return status;
-}
-
-/* writes a block of DSP image to DPRAM
- * Parameters:  struct ft1000_usb  - device structure
- *              u16 **pUsFile - DSP image file pointer in u16
- *              u8  **pUcFile - DSP image file pointer in u8
- *              long word_length - length of the buffer to be written to DPRAM
- */
-static int write_blk(struct ft1000_usb *ft1000dev, u16 **pUsFile, u8 **pUcFile,
-		     long word_length)
-{
-	int status = 0;
-	u16 dpram;
-	int loopcnt, i;
-	u16 tempword;
-	u16 tempbuffer[64];
-
-	/*pr_debug("start word_length = %d\n",(int)word_length); */
-	dpram = (u16)DWNLD_MAG1_PS_HDR_LOC;
-	tempword = *(*pUsFile);
-	(*pUsFile)++;
-	status = ft1000_write_dpram16(ft1000dev, dpram, tempword, 0);
-	tempword = *(*pUsFile);
-	(*pUsFile)++;
-	status = ft1000_write_dpram16(ft1000dev, dpram++, tempword, 1);
-
-	*pUcFile = *pUcFile + 4;
-	word_length--;
-	tempword = (u16)word_length;
-	word_length = (word_length / 16) + 1;
-	for (; word_length > 0; word_length--) { /* In words */
-		loopcnt = 0;
-		for (i = 0; i < 32; i++) {
-			if (tempword != 0) {
-				tempbuffer[i++] = *(*pUsFile);
-				(*pUsFile)++;
-				tempbuffer[i] = *(*pUsFile);
-				(*pUsFile)++;
-				*pUcFile = *pUcFile + 4;
-				loopcnt++;
-				tempword--;
-			} else {
-				tempbuffer[i++] = 0;
-				tempbuffer[i] = 0;
-			}
-		}
-
-		/*pr_debug("loopcnt is %d\n", loopcnt); */
-		/*pr_debug("write_blk: bootmode = %d\n", bootmode); */
-		/*pr_debug("write_blk: dpram = %x\n", dpram); */
-		if (ft1000dev->bootmode == 0) {
-			if (dpram >= 0x3F4)
-				status = ft1000_write_dpram32(ft1000dev, dpram,
-							      (u8 *)&tempbuffer[0], 8);
-			else
-				status = ft1000_write_dpram32(ft1000dev, dpram,
-							      (u8 *)&tempbuffer[0], 64);
-		} else {
-			status = write_dpram32_and_check(ft1000dev, tempbuffer,
-							 dpram);
-			if (status != 0) {
-				pr_debug("Write failed tempbuffer[31] = 0x%x\n",
-					 tempbuffer[31]);
-				break;
-			}
-		}
-		dpram = dpram + loopcnt;
-	}
-	return status;
-}
-
-static void usb_dnld_complete(struct urb *urb)
-{
-	/* pr_debug("****** usb_dnld_complete\n"); */
-}
-
-/* writes a block of DSP image to DPRAM
- * Parameters:  struct ft1000_usb  - device structure
- *              u16 **pUsFile - DSP image file pointer in u16
- *              u8  **pUcFile - DSP image file pointer in u8
- *              long word_length - length of the buffer to be written to DPRAM
- */
-static int write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
-			  u8 **pUcFile, long word_length)
-{
-	int byte_length;
-
-	byte_length = word_length * 4;
-
-	if (byte_length && ((byte_length % 64) == 0))
-		byte_length += 4;
-
-	if (byte_length < 64)
-		byte_length = 68;
-
-	usb_init_urb(ft1000dev->tx_urb);
-	memcpy(ft1000dev->tx_buf, *pUcFile, byte_length);
-	usb_fill_bulk_urb(ft1000dev->tx_urb,
-			  ft1000dev->dev,
-			  usb_sndbulkpipe(ft1000dev->dev,
-					  ft1000dev->bulk_out_endpointAddr),
-			  ft1000dev->tx_buf, byte_length, usb_dnld_complete,
-			  ft1000dev);
-
-	usb_submit_urb(ft1000dev->tx_urb, GFP_ATOMIC);
-
-	*pUsFile = *pUsFile + (word_length << 1);
-	*pUcFile = *pUcFile + (word_length << 2);
-
-	return 0;
-}
-
-static int scram_start_dwnld(struct ft1000_usb *ft1000dev, u16 *hshake,
-			     u32 *state)
-{
-	int status = 0;
-
-	if (ft1000dev->usbboot)
-		*hshake = get_handshake_usb(ft1000dev, HANDSHAKE_DSP_BL_READY);
-	else
-		*hshake = get_handshake(ft1000dev, HANDSHAKE_DSP_BL_READY);
-	if (*hshake == HANDSHAKE_DSP_BL_READY) {
-		pr_debug("handshake is HANDSHAKE_DSP_BL_READY, call put_handshake(HANDSHAKE_DRIVER_READY)\n");
-		put_handshake(ft1000dev, HANDSHAKE_DRIVER_READY);
-	} else if (*hshake == HANDSHAKE_TIMEOUT_VALUE) {
-		status = -ETIMEDOUT;
-	} else {
-		pr_debug("Download error: Handshake failed\n");
-		status = -ENETRESET;
-	}
-	*state = STATE_BOOT_DWNLD;
-	return status;
-}
-
-static int request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
-				u8 **c_file, const u8 *endpoint, bool boot_case)
-{
-	long word_length;
-	int status = 0;
-
-	word_length = get_request_value(ft1000dev);
-	/*pr_debug("word_length = 0x%x\n", (int)word_length); */
-	/*NdisMSleep (100); */
-	if (word_length > MAX_LENGTH) {
-		pr_debug("Download error: Max length exceeded\n");
-		return -1;
-	}
-	if ((word_length * 2 + (long)c_file) > (long)endpoint) {
-		/* Error, beyond boot code range.*/
-		pr_debug("Download error: Requested len=%d exceeds BOOT code boundary\n",
-			 (int)word_length);
-		return -1;
-	}
-	if (word_length & 0x1)
-		word_length++;
-	word_length = word_length / 2;
-
-	if (boot_case) {
-		status = write_blk(ft1000dev, s_file, c_file, word_length);
-		/*pr_debug("write_blk returned %d\n", status); */
-	} else {
-		status = write_blk_fifo(ft1000dev, s_file, c_file, word_length);
-		if (ft1000dev->usbboot == 0)
-			ft1000dev->usbboot++;
-		if (ft1000dev->usbboot == 1)
-			status |= ft1000_write_dpram16(ft1000dev,
-						       DWNLD_MAG1_PS_HDR_LOC, 0, 0);
-	}
-	return status;
-}
-
-/* Scramble downloader for Harley based ASIC via USB interface */
-int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
-		u32 FileLength)
-{
-	int status = 0;
-	u32 state;
-	u16 handshake;
-	struct pseudo_hdr *pseudo_header;
-	u16 pseudo_header_len;
-	long word_length;
-	u16 request;
-	u16 temp;
-
-	struct dsp_file_hdr *file_hdr;
-	struct dsp_image_info *dsp_img_info = NULL;
-	long requested_version;
-	bool correct_version;
-	struct drv_msg *mailbox_data;
-	u16 *data = NULL;
-	u16 *s_file = NULL;
-	u8 *c_file = NULL;
-	u8 *boot_end = NULL, *code_end = NULL;
-	int image;
-	long loader_code_address, loader_code_size = 0;
-	long run_address = 0, run_size = 0;
-
-	u32 templong;
-	u32 image_chksum = 0;
-
-	u16 dpram = 0;
-	u8 *pbuffer;
-	struct prov_record *pprov_record;
-	struct ft1000_info *pft1000info = netdev_priv(ft1000dev->net);
-
-	ft1000dev->fcodeldr = 0;
-	ft1000dev->usbboot = 0;
-	ft1000dev->dspalive = 0xffff;
-
-	/*
-	 * Get version id of file, at first 4 bytes of file, for newer files.
-	 */
-
-	state = STATE_START_DWNLD;
-
-	file_hdr = pFileStart;
-
-	ft1000_write_register(ft1000dev, 0x800, FT1000_REG_MAG_WATERMARK);
-
-	s_file = (u16 *) (pFileStart + file_hdr->loader_offset);
-	c_file = (u8 *) (pFileStart + file_hdr->loader_offset);
-
-	boot_end = (u8 *) (pFileStart + file_hdr->loader_code_end);
-
-	loader_code_address = file_hdr->loader_code_address;
-	loader_code_size = file_hdr->loader_code_size;
-	correct_version = false;
-
-	while ((status == 0) && (state != STATE_DONE_FILE)) {
-		switch (state) {
-		case STATE_START_DWNLD:
-			status = scram_start_dwnld(ft1000dev, &handshake,
-						   &state);
-			break;
-
-		case STATE_BOOT_DWNLD:
-			pr_debug("STATE_BOOT_DWNLD\n");
-			ft1000dev->bootmode = 1;
-			handshake = get_handshake(ft1000dev, HANDSHAKE_REQUEST);
-			if (handshake == HANDSHAKE_REQUEST) {
-				/*
-				 * Get type associated with the request.
-				 */
-				request = get_request_type(ft1000dev);
-				switch (request) {
-				case REQUEST_RUN_ADDRESS:
-					pr_debug("REQUEST_RUN_ADDRESS\n");
-					put_request_value(ft1000dev,
-							  loader_code_address);
-					break;
-				case REQUEST_CODE_LENGTH:
-					pr_debug("REQUEST_CODE_LENGTH\n");
-					put_request_value(ft1000dev,
-							  loader_code_size);
-					break;
-				case REQUEST_DONE_BL:
-					pr_debug("REQUEST_DONE_BL\n");
-					/* Reposition ptrs to beginning of code section */
-					s_file = (u16 *) (boot_end);
-					c_file = (u8 *) (boot_end);
-					/* pr_debug("download:s_file = 0x%8x\n", (int)s_file); */
-					/* pr_debug("FT1000:download:c_file = 0x%8x\n", (int)c_file); */
-					state = STATE_CODE_DWNLD;
-					ft1000dev->fcodeldr = 1;
-					break;
-				case REQUEST_CODE_SEGMENT:
-					status = request_code_segment(ft1000dev,
-								      &s_file, &c_file,
-								      boot_end,
-								      true);
-					break;
-				default:
-					pr_debug("Download error: Bad request type=%d in BOOT download state\n",
-						 request);
-					status = -1;
-					break;
-				}
-				if (ft1000dev->usbboot)
-					put_handshake_usb(ft1000dev,
-							  HANDSHAKE_RESPONSE);
-				else
-					put_handshake(ft1000dev,
-						      HANDSHAKE_RESPONSE);
-			} else {
-				pr_debug("Download error: Handshake failed\n");
-				status = -1;
-			}
-
-			break;
-
-		case STATE_CODE_DWNLD:
-			/* pr_debug("STATE_CODE_DWNLD\n"); */
-			ft1000dev->bootmode = 0;
-			if (ft1000dev->usbboot)
-				handshake =
-					get_handshake_usb(ft1000dev,
-							  HANDSHAKE_REQUEST);
-			else
-				handshake =
-					get_handshake(ft1000dev, HANDSHAKE_REQUEST);
-			if (handshake == HANDSHAKE_REQUEST) {
-				/*
-				 * Get type associated with the request.
-				 */
-				if (ft1000dev->usbboot)
-					request =
-						get_request_type_usb(ft1000dev);
-				else
-					request = get_request_type(ft1000dev);
-				switch (request) {
-				case REQUEST_FILE_CHECKSUM:
-					pr_debug("image_chksum = 0x%8x\n",
-						 image_chksum);
-					put_request_value(ft1000dev,
-							  image_chksum);
-					break;
-				case REQUEST_RUN_ADDRESS:
-					pr_debug("REQUEST_RUN_ADDRESS\n");
-					if (correct_version) {
-						pr_debug("run_address = 0x%8x\n",
-							 (int)run_address);
-						put_request_value(ft1000dev,
-								  run_address);
-					} else {
-						pr_debug("Download error: Got Run address request before image offset request\n");
-						status = -1;
-						break;
-					}
-					break;
-				case REQUEST_CODE_LENGTH:
-					pr_debug("REQUEST_CODE_LENGTH\n");
-					if (correct_version) {
-						pr_debug("run_size = 0x%8x\n",
-							 (int)run_size);
-						put_request_value(ft1000dev,
-								  run_size);
-					} else {
-						pr_debug("Download error: Got Size request before image offset request\n");
-						status = -1;
-						break;
-					}
-					break;
-				case REQUEST_DONE_CL:
-					ft1000dev->usbboot = 3;
-					/* Reposition ptrs to beginning of provisioning section */
-					s_file =
-						(u16 *) (pFileStart +
-							 file_hdr->commands_offset);
-					c_file =
-						(u8 *) (pFileStart +
-							file_hdr->commands_offset);
-					state = STATE_DONE_DWNLD;
-					break;
-				case REQUEST_CODE_SEGMENT:
-					/* pr_debug("REQUEST_CODE_SEGMENT - CODELOADER\n"); */
-					if (!correct_version) {
-						pr_debug("Download error: Got Code Segment request before image offset request\n");
-						status = -1;
-						break;
-					}
-
-					status = request_code_segment(ft1000dev,
-								      &s_file, &c_file,
-								      code_end,
-								      false);
-
-					break;
-
-				case REQUEST_MAILBOX_DATA:
-					pr_debug("REQUEST_MAILBOX_DATA\n");
-					/* Convert length from byte count to word count. Make sure we round up. */
-					word_length =
-						(long)(pft1000info->DSPInfoBlklen +
-						       1) / 2;
-					put_request_value(ft1000dev,
-							  word_length);
-					mailbox_data =
-						(struct drv_msg *)&(pft1000info->
-								    DSPInfoBlk[0]);
-					/*
-					 * Position ASIC DPRAM auto-increment pointer.
-					 */
-
-					data = (u16 *)&mailbox_data->data[0];
-					dpram = (u16)DWNLD_MAG1_PS_HDR_LOC;
-					if (word_length & 0x1)
-						word_length++;
-
-					word_length = word_length / 2;
-
-					for (; word_length > 0; word_length--) {	/* In words */
-
-						templong = *data++;
-						templong |= (*data++ << 16);
-						status =
-							fix_ft1000_write_dpram32
-							(ft1000dev, dpram++,
-							 (u8 *)&templong);
-
-					}
-					break;
-
-				case REQUEST_VERSION_INFO:
-					pr_debug("REQUEST_VERSION_INFO\n");
-					word_length =
-						file_hdr->version_data_size;
-					put_request_value(ft1000dev,
-							  word_length);
-					/*
-					 * Position ASIC DPRAM auto-increment pointer.
-					 */
-
-					s_file =
-						(u16 *) (pFileStart +
-							 file_hdr->
-							 version_data_offset);
-
-					dpram = (u16)DWNLD_MAG1_PS_HDR_LOC;
-					if (word_length & 0x1)
-						word_length++;
-
-					word_length = word_length / 2;
-
-					for (; word_length > 0; word_length--) {	/* In words */
-
-						templong = ntohs(*s_file++);
-						temp = ntohs(*s_file++);
-						templong |= (temp << 16);
-						status =
-							fix_ft1000_write_dpram32
-							(ft1000dev, dpram++,
-							 (u8 *)&templong);
-
-					}
-					break;
-
-				case REQUEST_CODE_BY_VERSION:
-					pr_debug("REQUEST_CODE_BY_VERSION\n");
-					correct_version = false;
-					requested_version =
-						get_request_value(ft1000dev);
-
-					dsp_img_info =
-						(struct dsp_image_info *)(pFileStart
-									  +
-									  sizeof
-									  (struct
-									   dsp_file_hdr));
-
-					for (image = 0;
-					     image < file_hdr->nDspImages;
-					     image++) {
-
-						if (dsp_img_info->version ==
-						    requested_version) {
-							correct_version = true;
-							pr_debug("correct_version is TRUE\n");
-							s_file =
-								(u16 *) (pFileStart
-									 +
-									 dsp_img_info->
-									 begin_offset);
-							c_file =
-								(u8 *) (pFileStart +
-									dsp_img_info->
-									begin_offset);
-							code_end =
-								(u8 *) (pFileStart +
-									dsp_img_info->
-									end_offset);
-							run_address =
-								dsp_img_info->
-								run_address;
-							run_size =
-								dsp_img_info->
-								image_size;
-							image_chksum =
-								(u32)dsp_img_info->
-								checksum;
-							break;
-						}
-						dsp_img_info++;
-
-					}	/* end of for */
-
-					if (!correct_version) {
-						/*
-						 * Error, beyond boot code range.
-						 */
-						pr_debug("Download error: Bad Version Request = 0x%x.\n",
-							 (int)requested_version);
-						status = -1;
-						break;
-					}
-					break;
-
-				default:
-					pr_debug("Download error: Bad request type=%d in CODE download state.\n",
-						 request);
-					status = -1;
-					break;
-				}
-				if (ft1000dev->usbboot)
-					put_handshake_usb(ft1000dev,
-							  HANDSHAKE_RESPONSE);
-				else
-					put_handshake(ft1000dev,
-						      HANDSHAKE_RESPONSE);
-			} else {
-				pr_debug("Download error: Handshake failed\n");
-				status = -1;
-			}
-
-			break;
-
-		case STATE_DONE_DWNLD:
-			pr_debug("Code loader is done...\n");
-			state = STATE_SECTION_PROV;
-			break;
-
-		case STATE_SECTION_PROV:
-			pr_debug("STATE_SECTION_PROV\n");
-			pseudo_header = (struct pseudo_hdr *)c_file;
-
-			if (pseudo_header->checksum ==
-			    hdr_checksum(pseudo_header)) {
-				if (pseudo_header->portdest !=
-				    0x80 /* Dsp OAM */) {
-					state = STATE_DONE_PROV;
-					break;
-				}
-				pseudo_header_len = ntohs(pseudo_header->length);	/* Byte length for PROV records */
-
-				/* Get buffer for provisioning data */
-				pbuffer =
-					kmalloc(pseudo_header_len +
-						 sizeof(struct pseudo_hdr),
-						GFP_ATOMIC);
-				if (pbuffer) {
-					memcpy(pbuffer, c_file,
-					       (u32) (pseudo_header_len +
-						      sizeof(struct
-							     pseudo_hdr)));
-					/* link provisioning data */
-					pprov_record =
-						kmalloc(sizeof(struct prov_record),
-							GFP_ATOMIC);
-					if (pprov_record) {
-						pprov_record->pprov_data =
-							pbuffer;
-						list_add_tail(&pprov_record->
-							      list,
-							      &pft1000info->
-							      prov_list);
-						/* Move to next entry if available */
-						c_file =
-							(u8 *) ((unsigned long)
-								c_file +
-								(u32) ((pseudo_header_len + 1) & 0xFFFFFFFE) + sizeof(struct pseudo_hdr));
-						if ((unsigned long)(c_file) -
-						    (unsigned long)(pFileStart)
-						    >=
-						    (unsigned long)FileLength) {
-							state = STATE_DONE_FILE;
-						}
-					} else {
-						kfree(pbuffer);
-						status = -1;
-					}
-				} else {
-					status = -1;
-				}
-			} else {
-				/* Checksum did not compute */
-				status = -1;
-			}
-			pr_debug("after STATE_SECTION_PROV, state = %d, status= %d\n",
-				 state, status);
-			break;
-
-		case STATE_DONE_PROV:
-			pr_debug("STATE_DONE_PROV\n");
-			state = STATE_DONE_FILE;
-			break;
-
-		default:
-			status = -1;
-			break;
-		}		/* End Switch */
-
-		if (status != 0)
-			break;
-
-/****
- // Check if Card is present
- status = Harley_Read_Register(&temp, FT1000_REG_SUP_IMASK);
- if ( (status != NDIS_STATUS_SUCCESS) || (temp == 0x0000) ) {
- break;
- }
-
- status = Harley_Read_Register(&temp, FT1000_REG_ASIC_ID);
- if ( (status != NDIS_STATUS_SUCCESS) || (temp == 0xffff) ) {
- break;
- }
-****/
-
-	}			/* End while */
-
-	pr_debug("Download exiting with status = 0x%8x\n", status);
-	ft1000_write_register(ft1000dev, FT1000_DB_DNLD_TX,
-			      FT1000_REG_DOORBELL);
-
-	return status;
-}
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
deleted file mode 100644
index 96209703ba25..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ /dev/null
@@ -1,1586 +0,0 @@
-/* CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
- *
- *
- * This file is part of Express Card USB Driver
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/usb.h>
-#include "ft1000_usb.h"
-#include <linux/types.h>
-
-#define HARLEY_READ_REGISTER     0x0
-#define HARLEY_WRITE_REGISTER    0x01
-#define HARLEY_READ_DPRAM_32     0x02
-#define HARLEY_READ_DPRAM_LOW    0x03
-#define HARLEY_READ_DPRAM_HIGH   0x04
-#define HARLEY_WRITE_DPRAM_32    0x05
-#define HARLEY_WRITE_DPRAM_LOW   0x06
-#define HARLEY_WRITE_DPRAM_HIGH  0x07
-
-#define HARLEY_READ_OPERATION    0xc1
-#define HARLEY_WRITE_OPERATION   0x41
-
-#if 0
-#define JDEBUG
-#endif
-
-static int ft1000_submit_rx_urb(struct ft1000_info *info);
-
-static u8 tempbuffer[1600];
-
-#define MAX_RCV_LOOP   100
-
-/* send a control message via USB interface synchronously
- *  Parameters:  ft1000_usb  - device structure
- *               pipe - usb control message pipe
- *               request - control request
- *               requesttype - control message request type
- *               value - value to be written or 0
- *               index - register index
- *               data - data buffer to hold the read/write values
- *               size - data size
- *               timeout - control message time out value
- */
-static int ft1000_control(struct ft1000_usb *ft1000dev, unsigned int pipe,
-			  u8 request, u8 requesttype, u16 value, u16 index,
-			  void *data, u16 size, int timeout)
-{
-	int ret;
-
-	if ((ft1000dev == NULL) || (ft1000dev->dev == NULL)) {
-		pr_debug("ft1000dev or ft1000dev->dev == NULL, failure\n");
-		return -ENODEV;
-	}
-
-	ret = usb_control_msg(ft1000dev->dev, pipe, request, requesttype,
-			      value, index, data, size, timeout);
-
-	if (ret > 0)
-		ret = 0;
-
-	return ret;
-}
-
-/* returns the value in a register */
-int ft1000_read_register(struct ft1000_usb *ft1000dev, u16 *Data,
-			 u16 nRegIndx)
-{
-	int ret = 0;
-
-	ret = ft1000_control(ft1000dev,
-			     usb_rcvctrlpipe(ft1000dev->dev, 0),
-			     HARLEY_READ_REGISTER,
-			     HARLEY_READ_OPERATION,
-			     0,
-			     nRegIndx,
-			     Data,
-			     2,
-			     USB_CTRL_GET_TIMEOUT);
-
-	return ret;
-}
-
-/* writes the value in a register */
-int ft1000_write_register(struct ft1000_usb *ft1000dev, u16 value,
-			  u16 nRegIndx)
-{
-	int ret = 0;
-
-	ret = ft1000_control(ft1000dev,
-			     usb_sndctrlpipe(ft1000dev->dev, 0),
-			     HARLEY_WRITE_REGISTER,
-			     HARLEY_WRITE_OPERATION,
-			     value,
-			     nRegIndx,
-			     NULL,
-			     0,
-			     USB_CTRL_SET_TIMEOUT);
-
-	return ret;
-}
-
-/* read a number of bytes from DPRAM */
-int ft1000_read_dpram32(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer,
-			u16 cnt)
-{
-	int ret = 0;
-
-	ret = ft1000_control(ft1000dev,
-			     usb_rcvctrlpipe(ft1000dev->dev, 0),
-			     HARLEY_READ_DPRAM_32,
-			     HARLEY_READ_OPERATION,
-			     0,
-			     indx,
-			     buffer,
-			     cnt,
-			     USB_CTRL_GET_TIMEOUT);
-
-	return ret;
-}
-
-/* writes into DPRAM a number of bytes */
-int ft1000_write_dpram32(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer,
-			 u16 cnt)
-{
-	int ret = 0;
-
-	if (cnt % 4)
-		cnt += cnt - (cnt % 4);
-
-	ret = ft1000_control(ft1000dev,
-			     usb_sndctrlpipe(ft1000dev->dev, 0),
-			     HARLEY_WRITE_DPRAM_32,
-			     HARLEY_WRITE_OPERATION,
-			     0,
-			     indx,
-			     buffer,
-			     cnt,
-			     USB_CTRL_SET_TIMEOUT);
-
-	return ret;
-}
-
-/* read 16 bits from DPRAM */
-int ft1000_read_dpram16(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer,
-			u8 highlow)
-{
-	int ret = 0;
-	u8 request;
-
-	if (highlow == 0)
-		request = HARLEY_READ_DPRAM_LOW;
-	else
-		request = HARLEY_READ_DPRAM_HIGH;
-
-	ret = ft1000_control(ft1000dev,
-			     usb_rcvctrlpipe(ft1000dev->dev, 0),
-			     request,
-			     HARLEY_READ_OPERATION,
-			     0,
-			     indx,
-			     buffer,
-			     2,
-			     USB_CTRL_GET_TIMEOUT);
-
-	return ret;
-}
-
-/* write into DPRAM a number of bytes */
-int ft1000_write_dpram16(struct ft1000_usb *ft1000dev, u16 indx, u16 value,
-			 u8 highlow)
-{
-	int ret = 0;
-	u8 request;
-
-	if (highlow == 0)
-		request = HARLEY_WRITE_DPRAM_LOW;
-	else
-		request = HARLEY_WRITE_DPRAM_HIGH;
-
-	ret = ft1000_control(ft1000dev,
-			     usb_sndctrlpipe(ft1000dev->dev, 0),
-			     request,
-			     HARLEY_WRITE_OPERATION,
-			     value,
-			     indx,
-			     NULL,
-			     0,
-			     USB_CTRL_SET_TIMEOUT);
-
-	return ret;
-}
-
-/* read DPRAM 4 words at a time */
-int fix_ft1000_read_dpram32(struct ft1000_usb *ft1000dev, u16 indx,
-			    u8 *buffer)
-{
-	u8 buf[16];
-	u16 pos;
-	int ret = 0;
-
-	pos = (indx / 4) * 4;
-	ret = ft1000_read_dpram32(ft1000dev, pos, buf, 16);
-
-	if (ret == 0) {
-		pos = (indx % 4) * 4;
-		*buffer++ = buf[pos++];
-		*buffer++ = buf[pos++];
-		*buffer++ = buf[pos++];
-		*buffer++ = buf[pos++];
-	} else {
-		pr_debug("DPRAM32 Read failed\n");
-		*buffer++ = 0;
-		*buffer++ = 0;
-		*buffer++ = 0;
-		*buffer++ = 0;
-	}
-
-	return ret;
-}
-
-
-/* Description: This function write to DPRAM 4 words at a time */
-int fix_ft1000_write_dpram32(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer)
-{
-	u16 pos1;
-	u16 pos2;
-	u16 i;
-	u8 buf[32];
-	u8 resultbuffer[32];
-	u8 *pdata;
-	int ret  = 0;
-
-	pos1 = (indx / 4) * 4;
-	pdata = buffer;
-	ret = ft1000_read_dpram32(ft1000dev, pos1, buf, 16);
-
-	if (ret == 0) {
-		pos2 = (indx % 4)*4;
-		buf[pos2++] = *buffer++;
-		buf[pos2++] = *buffer++;
-		buf[pos2++] = *buffer++;
-		buf[pos2++] = *buffer++;
-		ret = ft1000_write_dpram32(ft1000dev, pos1, buf, 16);
-	} else {
-		pr_debug("DPRAM32 Read failed\n");
-		return ret;
-	}
-
-	ret = ft1000_read_dpram32(ft1000dev, pos1, (u8 *)&resultbuffer[0], 16);
-
-	if (ret == 0) {
-		buffer = pdata;
-		for (i = 0; i < 16; i++) {
-			if (buf[i] != resultbuffer[i])
-				ret = -1;
-		}
-	}
-
-	if (ret == -1) {
-		ret = ft1000_write_dpram32(ft1000dev, pos1,
-					   (u8 *)&tempbuffer[0], 16);
-		ret = ft1000_read_dpram32(ft1000dev, pos1,
-					  (u8 *)&resultbuffer[0], 16);
-		if (ret == 0) {
-			buffer = pdata;
-			for (i = 0; i < 16; i++) {
-				if (tempbuffer[i] != resultbuffer[i]) {
-					ret = -1;
-					pr_debug("Failed to write\n");
-				}
-			}
-		}
-	}
-
-	return ret;
-}
-
-/* reset or activate the DSP */
-static void card_reset_dsp(struct ft1000_usb *ft1000dev, bool value)
-{
-	int status = 0;
-	u16 tempword;
-
-	status = ft1000_write_register(ft1000dev, HOST_INTF_BE,
-				       FT1000_REG_SUP_CTRL);
-	status = ft1000_read_register(ft1000dev, &tempword,
-				      FT1000_REG_SUP_CTRL);
-
-	if (value) {
-		pr_debug("Reset DSP\n");
-		status = ft1000_read_register(ft1000dev, &tempword,
-					      FT1000_REG_RESET);
-		tempword |= DSP_RESET_BIT;
-		status = ft1000_write_register(ft1000dev, tempword,
-					       FT1000_REG_RESET);
-	} else {
-		pr_debug("Activate DSP\n");
-		status = ft1000_read_register(ft1000dev, &tempword,
-					      FT1000_REG_RESET);
-		tempword |= DSP_ENCRYPTED;
-		tempword &= ~DSP_UNENCRYPTED;
-		status = ft1000_write_register(ft1000dev, tempword,
-					       FT1000_REG_RESET);
-		status = ft1000_read_register(ft1000dev, &tempword,
-					      FT1000_REG_RESET);
-		tempword &= ~EFUSE_MEM_DISABLE;
-		tempword &= ~DSP_RESET_BIT;
-		status = ft1000_write_register(ft1000dev, tempword,
-					       FT1000_REG_RESET);
-		status = ft1000_read_register(ft1000dev, &tempword,
-					      FT1000_REG_RESET);
-	}
-}
-
-/* send a command to ASIC
- *  Parameters:  ft1000_usb  - device structure
- *               ptempbuffer - command buffer
- *               size - command buffer size
- */
-int card_send_command(struct ft1000_usb *ft1000dev, void *ptempbuffer,
-		      int size)
-{
-	int ret;
-	unsigned short temp;
-	unsigned char *commandbuf;
-
-	pr_debug("enter card_send_command... size=%d\n", size);
-
-	ret = ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
-	if (ret)
-		return ret;
-
-	commandbuf = kmalloc(size + 2, GFP_KERNEL);
-	if (!commandbuf)
-		return -ENOMEM;
-	memcpy((void *)commandbuf + 2, ptempbuffer, size);
-
-	if (temp & 0x0100)
-		usleep_range(900, 1100);
-
-	/* check for odd word */
-	size = size + 2;
-
-	/* Must force to be 32 bit aligned */
-	if (size % 4)
-		size += 4 - (size % 4);
-
-	ret = ft1000_write_dpram32(ft1000dev, 0, commandbuf, size);
-	if (ret)
-		return ret;
-	usleep_range(900, 1100);
-	ret = ft1000_write_register(ft1000dev, FT1000_DB_DPRAM_TX,
-				    FT1000_REG_DOORBELL);
-	if (ret)
-		return ret;
-	usleep_range(900, 1100);
-
-	ret = ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
-
-#if 0
-	if ((temp & 0x0100) == 0)
-		pr_debug("Message sent\n");
-#endif
-	return ret;
-}
-
-/* load or reload the DSP */
-int dsp_reload(struct ft1000_usb *ft1000dev)
-{
-	int status;
-	u16 tempword;
-	u32 templong;
-
-	struct ft1000_info *pft1000info;
-
-	pft1000info = netdev_priv(ft1000dev->net);
-
-	pft1000info->CardReady = 0;
-
-	/* Program Interrupt Mask register */
-	status = ft1000_write_register(ft1000dev, 0xffff, FT1000_REG_SUP_IMASK);
-
-	status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_RESET);
-	tempword |= ASIC_RESET_BIT;
-	status = ft1000_write_register(ft1000dev, tempword, FT1000_REG_RESET);
-	msleep(1000);
-	status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_RESET);
-	pr_debug("Reset Register = 0x%x\n", tempword);
-
-	/* Toggle DSP reset */
-	card_reset_dsp(ft1000dev, 1);
-	msleep(1000);
-	card_reset_dsp(ft1000dev, 0);
-	msleep(1000);
-
-	status = ft1000_write_register(ft1000dev, HOST_INTF_BE,
-				       FT1000_REG_SUP_CTRL);
-
-	/* Let's check for FEFE */
-	status =
-		ft1000_read_dpram32(ft1000dev, FT1000_MAG_DPRAM_FEFE_INDX,
-				    (u8 *)&templong, 4);
-	pr_debug("templong (fefe) = 0x%8x\n", templong);
-
-	/* call codeloader */
-	status = scram_dnldr(ft1000dev, pFileStart, FileLength);
-
-	if (status != 0)
-		return -EIO;
-
-	msleep(1000);
-
-	return 0;
-}
-
-/* call the Card Service function to reset the ASIC. */
-static void ft1000_reset_asic(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	struct ft1000_usb *ft1000dev = info->priv;
-	u16 tempword;
-
-	/* Let's use the register provided by the Magnemite ASIC to reset the
-	 * ASIC and DSP.
-	 */
-	ft1000_write_register(ft1000dev, DSP_RESET_BIT | ASIC_RESET_BIT,
-			      FT1000_REG_RESET);
-
-	mdelay(1);
-
-	/* set watermark to -1 in order to not generate an interrupt */
-	ft1000_write_register(ft1000dev, 0xffff, FT1000_REG_MAG_WATERMARK);
-
-	/* clear interrupts */
-	ft1000_read_register(ft1000dev, &tempword, FT1000_REG_SUP_ISR);
-	pr_debug("interrupt status register = 0x%x\n", tempword);
-	ft1000_write_register(ft1000dev, tempword, FT1000_REG_SUP_ISR);
-	ft1000_read_register(ft1000dev, &tempword, FT1000_REG_SUP_ISR);
-	pr_debug("interrupt status register = 0x%x\n", tempword);
-}
-
-static int ft1000_reset_card(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-	struct ft1000_usb *ft1000dev = info->priv;
-	u16 tempword;
-	struct prov_record *ptr;
-	struct prov_record *tmp;
-
-	ft1000dev->fCondResetPend = true;
-	info->CardReady = 0;
-	ft1000dev->fProvComplete = false;
-
-	/* Make sure we free any memory reserve for provisioning */
-	list_for_each_entry_safe(ptr, tmp, &info->prov_list, list) {
-		pr_debug("deleting provisioning record\n");
-		list_del(&ptr->list);
-		kfree(ptr->pprov_data);
-		kfree(ptr);
-	}
-
-	pr_debug("reset asic\n");
-	ft1000_reset_asic(dev);
-
-	pr_debug("call dsp_reload\n");
-	dsp_reload(ft1000dev);
-
-	pr_debug("dsp reload successful\n");
-
-	mdelay(10);
-
-	/* Initialize DSP heartbeat area */
-	ft1000_write_dpram16(ft1000dev, FT1000_MAG_HI_HO, ho_mag,
-			     FT1000_MAG_HI_HO_INDX);
-	ft1000_read_dpram16(ft1000dev, FT1000_MAG_HI_HO, (u8 *)&tempword,
-			    FT1000_MAG_HI_HO_INDX);
-	pr_debug("hi_ho value = 0x%x\n", tempword);
-
-	info->CardReady = 1;
-
-	ft1000dev->fCondResetPend = false;
-
-	return TRUE;
-}
-
-/* callback function when a urb is transmitted */
-static void ft1000_usb_transmit_complete(struct urb *urb)
-{
-
-	struct ft1000_usb *ft1000dev = urb->context;
-
-	if (urb->status)
-		pr_err("%s: TX status %d\n", ft1000dev->net->name, urb->status);
-
-	netif_wake_queue(ft1000dev->net);
-}
-
-/* take an ethernet packet and convert it to a Flarion
- *  packet prior to sending it to the ASIC Downlink FIFO.
- */
-static int ft1000_copy_down_pkt(struct net_device *netdev, u8 *packet, u16 len)
-{
-	struct ft1000_info *pInfo = netdev_priv(netdev);
-	struct ft1000_usb *pFt1000Dev = pInfo->priv;
-
-	int count, ret;
-	u8 *t;
-	struct pseudo_hdr hdr;
-
-	if (!pInfo->CardReady) {
-		pr_debug("Card Not Ready\n");
-		return -ENODEV;
-	}
-
-	count = sizeof(struct pseudo_hdr) + len;
-	if (count > MAX_BUF_SIZE) {
-		pr_debug("Message Size Overflow! size = %d\n", count);
-		return -EINVAL;
-	}
-
-	if (count % 4)
-		count = count + (4 - (count % 4));
-
-	memset(&hdr, 0, sizeof(struct pseudo_hdr));
-
-	hdr.length = ntohs(count);
-	hdr.source = 0x10;
-	hdr.destination = 0x20;
-	hdr.portdest = 0x20;
-	hdr.portsrc = 0x10;
-	hdr.sh_str_id = 0x91;
-	hdr.control = 0x00;
-
-	hdr.checksum = hdr.length ^ hdr.source ^ hdr.destination ^
-		hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ hdr.control;
-
-	memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr));
-	memcpy(&pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)], packet, len);
-
-	netif_stop_queue(netdev);
-
-	usb_fill_bulk_urb(pFt1000Dev->tx_urb,
-			  pFt1000Dev->dev,
-			  usb_sndbulkpipe(pFt1000Dev->dev,
-					  pFt1000Dev->bulk_out_endpointAddr),
-			  pFt1000Dev->tx_buf, count,
-			  ft1000_usb_transmit_complete, pFt1000Dev);
-
-	t = (u8 *)pFt1000Dev->tx_urb->transfer_buffer;
-
-	ret = usb_submit_urb(pFt1000Dev->tx_urb, GFP_ATOMIC);
-
-	if (ret) {
-		pr_debug("failed tx_urb %d\n", ret);
-		return ret;
-	}
-	pInfo->stats.tx_packets++;
-	pInfo->stats.tx_bytes += (len + 14);
-
-	return 0;
-}
-
-/* transmit an ethernet packet
- *  Parameters:  skb - socket buffer to be sent
- *               dev - network device
- */
-static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct ft1000_info *pInfo = netdev_priv(dev);
-	struct ft1000_usb *pFt1000Dev = pInfo->priv;
-	u8 *pdata;
-	int maxlen, pipe;
-
-	if (skb == NULL) {
-		pr_debug("skb == NULL!!!\n");
-		return NETDEV_TX_OK;
-	}
-
-	if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
-		pr_debug("network driver is closed, return\n");
-		goto err;
-	}
-
-	pipe = usb_sndbulkpipe(pFt1000Dev->dev,
-			       pFt1000Dev->bulk_out_endpointAddr);
-	maxlen = usb_maxpacket(pFt1000Dev->dev, pipe, usb_pipeout(pipe));
-
-	pdata = (u8 *)skb->data;
-
-	if (pInfo->mediastate == 0) {
-		/* Drop packet is mediastate is down */
-		pr_debug("mediastate is down\n");
-		goto err;
-	}
-
-	if ((skb->len < ENET_HEADER_SIZE) || (skb->len > ENET_MAX_SIZE)) {
-		/* Drop packet which has invalid size */
-		pr_debug("invalid ethernet length\n");
-		goto err;
-	}
-
-	ft1000_copy_down_pkt(dev, pdata + ENET_HEADER_SIZE - 2,
-			     skb->len - ENET_HEADER_SIZE + 2);
-
-err:
-	dev_kfree_skb(skb);
-
-	return NETDEV_TX_OK;
-}
-
-/* open the network driver */
-static int ft1000_open(struct net_device *dev)
-{
-	struct ft1000_info *pInfo = netdev_priv(dev);
-	struct ft1000_usb *pFt1000Dev = pInfo->priv;
-	struct timeval tv;
-
-	pr_debug("ft1000_open is called for card %d\n", pFt1000Dev->CardNumber);
-
-	pInfo->stats.rx_bytes = 0;
-	pInfo->stats.tx_bytes = 0;
-	pInfo->stats.rx_packets = 0;
-	pInfo->stats.tx_packets = 0;
-	do_gettimeofday(&tv);
-	pInfo->ConTm = tv.tv_sec;
-	pInfo->ProgConStat = 0;
-
-	netif_start_queue(dev);
-
-	netif_carrier_on(dev);
-
-	return ft1000_submit_rx_urb(pInfo);
-}
-
-static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-
-	return &(info->stats);
-}
-
-static const struct net_device_ops ftnet_ops = {
-	.ndo_open = &ft1000_open,
-	.ndo_stop = &ft1000_close,
-	.ndo_start_xmit = &ft1000_start_xmit,
-	.ndo_get_stats = &ft1000_netdev_stats,
-};
-
-/* initialize the network device */
-static int ft1000_reset(void *dev)
-{
-	ft1000_reset_card(dev);
-	return 0;
-}
-
-int init_ft1000_netdev(struct ft1000_usb *ft1000dev)
-{
-	struct net_device *netdev;
-	struct ft1000_info *pInfo = NULL;
-	struct dpram_blk *pdpram_blk;
-	int i, ret_val;
-	struct list_head *cur, *tmp;
-	char card_nr[2];
-	u8 gCardIndex = 0;
-
-	netdev = alloc_etherdev(sizeof(struct ft1000_info));
-	if (!netdev) {
-		pr_debug("can not allocate network device\n");
-		return -ENOMEM;
-	}
-
-	pInfo = netdev_priv(netdev);
-
-	memset(pInfo, 0, sizeof(struct ft1000_info));
-
-	dev_alloc_name(netdev, netdev->name);
-
-	pr_debug("network device name is %s\n", netdev->name);
-
-	if (strncmp(netdev->name, "eth", 3) == 0) {
-		card_nr[0] = netdev->name[3];
-		card_nr[1] = '\0';
-		ret_val = kstrtou8(card_nr, 10, &gCardIndex);
-		if (ret_val) {
-			netdev_err(ft1000dev->net, "Can't parse netdev\n");
-			goto err_net;
-		}
-
-		ft1000dev->CardNumber = gCardIndex;
-		pr_debug("card number = %d\n", ft1000dev->CardNumber);
-	} else {
-		netdev_err(ft1000dev->net, "ft1000: Invalid device name\n");
-		ret_val = -ENXIO;
-		goto err_net;
-	}
-
-	memset(&pInfo->stats, 0, sizeof(struct net_device_stats));
-
-	spin_lock_init(&pInfo->dpram_lock);
-	pInfo->priv = ft1000dev;
-	pInfo->DrvErrNum = 0;
-	pInfo->registered = 1;
-	pInfo->ft1000_reset = ft1000_reset;
-	pInfo->mediastate = 0;
-	pInfo->fifo_cnt = 0;
-	ft1000dev->DeviceCreated = FALSE;
-	pInfo->CardReady = 0;
-	pInfo->DSP_TIME[0] = 0;
-	pInfo->DSP_TIME[1] = 0;
-	pInfo->DSP_TIME[2] = 0;
-	pInfo->DSP_TIME[3] = 0;
-	ft1000dev->fAppMsgPend = false;
-	ft1000dev->fCondResetPend = false;
-	ft1000dev->usbboot = 0;
-	ft1000dev->dspalive = 0;
-	memset(&ft1000dev->tempbuf[0], 0, sizeof(ft1000dev->tempbuf));
-
-	INIT_LIST_HEAD(&pInfo->prov_list);
-
-	INIT_LIST_HEAD(&ft1000dev->nodes.list);
-
-	netdev->netdev_ops = &ftnet_ops;
-
-	ft1000dev->net = netdev;
-
-	pr_debug("Initialize free_buff_lock and freercvpool\n");
-	spin_lock_init(&free_buff_lock);
-
-	/* initialize a list of buffers to be use for queuing
-	 * up receive command data
-	 */
-	INIT_LIST_HEAD(&freercvpool);
-
-	/* create list of free buffers */
-	for (i = 0; i < NUM_OF_FREE_BUFFERS; i++) {
-		/* Get memory for DPRAM_DATA link list */
-		pdpram_blk = kmalloc(sizeof(struct dpram_blk), GFP_KERNEL);
-		if (pdpram_blk == NULL) {
-			ret_val = -ENOMEM;
-			goto err_free;
-		}
-		/* Get a block of memory to store command data */
-		pdpram_blk->pbuffer = kmalloc(MAX_CMD_SQSIZE, GFP_KERNEL);
-		if (pdpram_blk->pbuffer == NULL) {
-			ret_val = -ENOMEM;
-			kfree(pdpram_blk);
-			goto err_free;
-		}
-		/* link provisioning data */
-		list_add_tail(&pdpram_blk->list, &freercvpool);
-	}
-	numofmsgbuf = NUM_OF_FREE_BUFFERS;
-
-	return 0;
-
-err_free:
-	list_for_each_safe(cur, tmp, &freercvpool) {
-		pdpram_blk = list_entry(cur, struct dpram_blk, list);
-		list_del(&pdpram_blk->list);
-		kfree(pdpram_blk->pbuffer);
-		kfree(pdpram_blk);
-	}
-err_net:
-	free_netdev(netdev);
-	return ret_val;
-}
-
-/* register the network driver */
-int reg_ft1000_netdev(struct ft1000_usb *ft1000dev,
-		      struct usb_interface *intf)
-{
-	struct net_device *netdev;
-	struct ft1000_info *pInfo;
-	int rc;
-
-	netdev = ft1000dev->net;
-	pInfo = netdev_priv(ft1000dev->net);
-
-	ft1000_read_register(ft1000dev, &pInfo->AsicID, FT1000_REG_ASIC_ID);
-
-	usb_set_intfdata(intf, pInfo);
-	SET_NETDEV_DEV(netdev, &intf->dev);
-
-	rc = register_netdev(netdev);
-	if (rc) {
-		pr_debug("could not register network device\n");
-		free_netdev(netdev);
-		return rc;
-	}
-
-	ft1000_create_dev(ft1000dev);
-
-	pInfo->CardReady = 1;
-
-	return 0;
-}
-
-/* take a packet from the FIFO up link and
- *  convert it into an ethernet packet and deliver it to the IP stack
- */
-static int ft1000_copy_up_pkt(struct urb *urb)
-{
-	struct ft1000_info *info = urb->context;
-	struct ft1000_usb *ft1000dev = info->priv;
-	struct net_device *net = ft1000dev->net;
-
-	u16 tempword;
-	u16 len;
-	u16 lena;
-	struct sk_buff *skb;
-	u16 i;
-	u8 *pbuffer = NULL;
-	u8 *ptemp = NULL;
-	u16 *chksum;
-
-	if (ft1000dev->status & FT1000_STATUS_CLOSING) {
-		pr_debug("network driver is closed, return\n");
-		return 0;
-	}
-	/* Read length */
-	len = urb->transfer_buffer_length;
-	lena = urb->actual_length;
-
-	chksum = (u16 *)ft1000dev->rx_buf;
-
-	tempword = *chksum++;
-	for (i = 1; i < 7; i++)
-		tempword ^= *chksum++;
-
-	if (tempword != *chksum) {
-		info->stats.rx_errors++;
-		ft1000_submit_rx_urb(info);
-		return -1;
-	}
-
-	skb = dev_alloc_skb(len + 12 + 2);
-
-	if (skb == NULL) {
-		info->stats.rx_errors++;
-		ft1000_submit_rx_urb(info);
-		return -1;
-	}
-
-	pbuffer = (u8 *)skb_put(skb, len + 12);
-
-	/* subtract the number of bytes read already */
-	ptemp = pbuffer;
-
-	/* fake MAC address */
-	*pbuffer++ = net->dev_addr[0];
-	*pbuffer++ = net->dev_addr[1];
-	*pbuffer++ = net->dev_addr[2];
-	*pbuffer++ = net->dev_addr[3];
-	*pbuffer++ = net->dev_addr[4];
-	*pbuffer++ = net->dev_addr[5];
-	*pbuffer++ = 0x00;
-	*pbuffer++ = 0x07;
-	*pbuffer++ = 0x35;
-	*pbuffer++ = 0xff;
-	*pbuffer++ = 0xff;
-	*pbuffer++ = 0xfe;
-
-	memcpy(pbuffer, ft1000dev->rx_buf + sizeof(struct pseudo_hdr),
-	       len - sizeof(struct pseudo_hdr));
-
-	skb->dev = net;
-
-	skb->protocol = eth_type_trans(skb, net);
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
-	netif_rx(skb);
-
-	info->stats.rx_packets++;
-	/* Add on 12 bytes for MAC address which was removed */
-	info->stats.rx_bytes += (lena + 12);
-
-	ft1000_submit_rx_urb(info);
-
-	return 0;
-}
-
-
-/* the receiving function of the network driver */
-static int ft1000_submit_rx_urb(struct ft1000_info *info)
-{
-	int result;
-	struct ft1000_usb *pFt1000Dev = info->priv;
-
-	if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
-		pr_debug("network driver is closed, return\n");
-		return -ENODEV;
-	}
-
-	usb_fill_bulk_urb(pFt1000Dev->rx_urb,
-			  pFt1000Dev->dev,
-			  usb_rcvbulkpipe(pFt1000Dev->dev,
-					  pFt1000Dev->bulk_in_endpointAddr),
-			  pFt1000Dev->rx_buf, MAX_BUF_SIZE,
-			  (usb_complete_t)ft1000_copy_up_pkt, info);
-
-	result = usb_submit_urb(pFt1000Dev->rx_urb, GFP_ATOMIC);
-
-	if (result) {
-		pr_err("submitting rx_urb %d failed\n", result);
-		return result;
-	}
-
-	return 0;
-}
-
-/* close the network driver */
-int ft1000_close(struct net_device *net)
-{
-	struct ft1000_info *pInfo = netdev_priv(net);
-	struct ft1000_usb *ft1000dev = pInfo->priv;
-
-	ft1000dev->status |= FT1000_STATUS_CLOSING;
-
-	pr_debug("pInfo=%p, ft1000dev=%p\n", pInfo, ft1000dev);
-	netif_carrier_off(net);
-	netif_stop_queue(net);
-	ft1000dev->status &= ~FT1000_STATUS_CLOSING;
-
-	pInfo->ProgConStat = 0xff;
-
-	return 0;
-}
-
-/* check if the device is presently available on the system. */
-static int ft1000_chkcard(struct ft1000_usb *dev)
-{
-	u16 tempword;
-	int status;
-
-	if (dev->fCondResetPend) {
-		pr_debug("Card is being reset, return FALSE\n");
-		return TRUE;
-	}
-	/* Mask register is used to check for device presence since it is never
-	 * set to zero.
-	 */
-	status = ft1000_read_register(dev, &tempword, FT1000_REG_SUP_IMASK);
-	if (tempword == 0) {
-		pr_debug("IMASK = 0 Card not detected\n");
-		return FALSE;
-	}
-	/* The system will return the value of 0xffff for the version register
-	 * if the device is not present.
-	 */
-	status = ft1000_read_register(dev, &tempword, FT1000_REG_ASIC_ID);
-	if (tempword != 0x1b01) {
-		dev->status |= FT1000_STATUS_CLOSING;
-		pr_debug("Version = 0xffff Card not detected\n");
-		return FALSE;
-	}
-	return TRUE;
-}
-
-/* read a message from the dpram area.
- *  Input:
- *    dev - network device structure
- *    pbuffer - caller supply address to buffer
- */
-static bool ft1000_receive_cmd(struct ft1000_usb *dev, u16 *pbuffer,
-			       int maxsz)
-{
-	u16 size;
-	int ret;
-	u16 *ppseudohdr;
-	int i;
-	u16 tempword;
-
-	ret =
-		ft1000_read_dpram16(dev, FT1000_MAG_PH_LEN, (u8 *)&size,
-				    FT1000_MAG_PH_LEN_INDX);
-	size = ntohs(size) + PSEUDOSZ;
-	if (size > maxsz) {
-		pr_debug("Invalid command length = %d\n", size);
-		return FALSE;
-	}
-	ppseudohdr = (u16 *)pbuffer;
-	ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE,
-			      FT1000_REG_DPRAM_ADDR);
-	ret =
-		ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
-	pbuffer++;
-	ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE + 1,
-			      FT1000_REG_DPRAM_ADDR);
-	for (i = 0; i <= (size >> 2); i++) {
-		ret =
-			ft1000_read_register(dev, pbuffer,
-					     FT1000_REG_MAG_DPDATAL);
-		pbuffer++;
-		ret =
-			ft1000_read_register(dev, pbuffer,
-					     FT1000_REG_MAG_DPDATAH);
-		pbuffer++;
-	}
-	/* copy odd aligned word */
-	ret =
-		ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAL);
-
-	pbuffer++;
-	ret =
-		ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
-
-	pbuffer++;
-	if (size & 0x0001) {
-		/* copy odd byte from fifo */
-		ret =
-			ft1000_read_register(dev, &tempword,
-					     FT1000_REG_DPRAM_DATA);
-		*pbuffer = ntohs(tempword);
-	}
-	/* Check if pseudo header checksum is good
-	 * Calculate pseudo header checksum
-	 */
-	tempword = *ppseudohdr++;
-	for (i = 1; i < 7; i++)
-		tempword ^= *ppseudohdr++;
-
-	if (tempword != *ppseudohdr)
-		return FALSE;
-
-	return TRUE;
-}
-
-static int ft1000_dsp_prov(void *arg)
-{
-	struct ft1000_usb *dev = (struct ft1000_usb *)arg;
-	struct ft1000_info *info = netdev_priv(dev->net);
-	u16 tempword;
-	u16 len;
-	u16 i = 0;
-	struct prov_record *ptr;
-	struct pseudo_hdr *ppseudo_hdr;
-	u16 *pmsg;
-	int status;
-	u16 TempShortBuf[256];
-
-	while (list_empty(&info->prov_list) == 0) {
-		pr_debug("DSP Provisioning List Entry\n");
-
-		/* Check if doorbell is available */
-		pr_debug("check if doorbell is cleared\n");
-		status = ft1000_read_register(dev, &tempword,
-					      FT1000_REG_DOORBELL);
-		if (status) {
-			pr_debug("ft1000_read_register error\n");
-			break;
-		}
-
-		while (tempword & FT1000_DB_DPRAM_TX) {
-			mdelay(10);
-			i++;
-			if (i == 10) {
-				pr_debug("message drop\n");
-				return -1;
-			}
-			ft1000_read_register(dev, &tempword,
-					     FT1000_REG_DOORBELL);
-		}
-
-		if (!(tempword & FT1000_DB_DPRAM_TX)) {
-			pr_debug("*** Provision Data Sent to DSP\n");
-
-			/* Send provisioning data */
-			ptr = list_entry(info->prov_list.next,
-					 struct prov_record, list);
-			len = *(u16 *)ptr->pprov_data;
-			len = htons(len);
-			len += PSEUDOSZ;
-
-			pmsg = (u16 *)ptr->pprov_data;
-			ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-			/* Insert slow queue sequence number */
-			ppseudo_hdr->seq_num = info->squeseqnum++;
-			ppseudo_hdr->portsrc = 0;
-			/* Calculate new checksum */
-			ppseudo_hdr->checksum = *pmsg++;
-			for (i = 1; i < 7; i++)
-				ppseudo_hdr->checksum ^= *pmsg++;
-
-			TempShortBuf[0] = 0;
-			TempShortBuf[1] = htons(len);
-			memcpy(&TempShortBuf[2], ppseudo_hdr, len);
-
-			status =
-				ft1000_write_dpram32(dev, 0,
-						     (u8 *)&TempShortBuf[0],
-						     (unsigned short)(len + 2));
-			status =
-				ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
-						      FT1000_REG_DOORBELL);
-
-			list_del(&ptr->list);
-			kfree(ptr->pprov_data);
-			kfree(ptr);
-		}
-		usleep_range(9000, 11000);
-	}
-
-	pr_debug("DSP Provisioning List Entry finished\n");
-
-	msleep(100);
-
-	dev->fProvComplete = true;
-	info->CardReady = 1;
-
-	return 0;
-}
-
-static int ft1000_proc_drvmsg(struct ft1000_usb *dev, u16 size)
-{
-	struct ft1000_info *info = netdev_priv(dev->net);
-	u16 msgtype;
-	u16 tempword;
-	struct media_msg *pmediamsg;
-	struct dsp_init_msg *pdspinitmsg;
-	struct drv_msg *pdrvmsg;
-	u16 i;
-	struct pseudo_hdr *ppseudo_hdr;
-	u16 *pmsg;
-	int status;
-	union {
-		u8 byte[2];
-		u16 wrd;
-	} convert;
-
-	char *cmdbuffer = kmalloc(1600, GFP_KERNEL);
-
-	if (!cmdbuffer)
-		return -ENOMEM;
-
-	status = ft1000_read_dpram32(dev, 0x200, cmdbuffer, size);
-
-#ifdef JDEBUG
-	print_hex_dump_debug("cmdbuffer: ", HEX_DUMP_OFFSET, 16, 1,
-			     cmdbuffer, size, true);
-#endif
-	pdrvmsg = (struct drv_msg *)&cmdbuffer[2];
-	msgtype = ntohs(pdrvmsg->type);
-	pr_debug("Command message type = 0x%x\n", msgtype);
-	switch (msgtype) {
-	case MEDIA_STATE:{
-		pr_debug("Command message type = MEDIA_STATE\n");
-		pmediamsg = (struct media_msg *)&cmdbuffer[0];
-		if (info->ProgConStat != 0xFF) {
-			if (pmediamsg->state) {
-				pr_debug("Media is up\n");
-				if (info->mediastate == 0) {
-					if (dev->NetDevRegDone)
-						netif_wake_queue(dev->net);
-					info->mediastate = 1;
-				}
-			} else {
-				pr_debug("Media is down\n");
-				if (info->mediastate == 1) {
-					info->mediastate = 0;
-					if (dev->NetDevRegDone)
-						info->ConTm = 0;
-				}
-			}
-		} else {
-			pr_debug("Media is down\n");
-			if (info->mediastate == 1) {
-				info->mediastate = 0;
-				info->ConTm = 0;
-			}
-		}
-		break;
-	}
-	case DSP_INIT_MSG:{
-		pr_debug("Command message type = DSP_INIT_MSG\n");
-		pdspinitmsg = (struct dsp_init_msg *)&cmdbuffer[2];
-		memcpy(info->DspVer, pdspinitmsg->DspVer, DSPVERSZ);
-		pr_debug("DSPVER = 0x%2x 0x%2x 0x%2x 0x%2x\n",
-			 info->DspVer[0], info->DspVer[1], info->DspVer[2],
-			 info->DspVer[3]);
-		memcpy(info->HwSerNum, pdspinitmsg->HwSerNum,
-		       HWSERNUMSZ);
-		memcpy(info->Sku, pdspinitmsg->Sku, SKUSZ);
-		memcpy(info->eui64, pdspinitmsg->eui64, EUISZ);
-		pr_debug("EUI64=%2x.%2x.%2x.%2x.%2x.%2x.%2x.%2x\n",
-			 info->eui64[0], info->eui64[1], info->eui64[2],
-			 info->eui64[3], info->eui64[4], info->eui64[5],
-			 info->eui64[6], info->eui64[7]);
-		dev->net->dev_addr[0] = info->eui64[0];
-		dev->net->dev_addr[1] = info->eui64[1];
-		dev->net->dev_addr[2] = info->eui64[2];
-		dev->net->dev_addr[3] = info->eui64[5];
-		dev->net->dev_addr[4] = info->eui64[6];
-		dev->net->dev_addr[5] = info->eui64[7];
-
-		if (ntohs(pdspinitmsg->length) ==
-		    (sizeof(struct dsp_init_msg) - 20)) {
-			memcpy(info->ProductMode, pdspinitmsg->ProductMode,
-			       MODESZ);
-			memcpy(info->RfCalVer, pdspinitmsg->RfCalVer, CALVERSZ);
-			memcpy(info->RfCalDate, pdspinitmsg->RfCalDate,
-			       CALDATESZ);
-			pr_debug("RFCalVer = 0x%2x 0x%2x\n",
-				 info->RfCalVer[0], info->RfCalVer[1]);
-		}
-		break;
-	}
-	case DSP_PROVISION:{
-		pr_debug("Command message type = DSP_PROVISION\n");
-
-		/* kick off dspprov routine to start provisioning
-		 * Send provisioning data to DSP
-		 */
-		if (list_empty(&info->prov_list) == 0) {
-			dev->fProvComplete = false;
-			status = ft1000_dsp_prov(dev);
-			if (status != 0)
-				goto out;
-		} else {
-			dev->fProvComplete = true;
-			status = ft1000_write_register(dev, FT1000_DB_HB,
-						       FT1000_REG_DOORBELL);
-			pr_debug("No more DSP provisioning data in dsp image\n");
-		}
-		pr_debug("DSP PROVISION is done\n");
-		break;
-	}
-	case DSP_STORE_INFO:{
-		pr_debug("Command message type = DSP_STORE_INFO");
-		tempword = ntohs(pdrvmsg->length);
-		info->DSPInfoBlklen = tempword;
-		if (tempword < (MAX_DSP_SESS_REC - 4)) {
-			pmsg = (u16 *)&pdrvmsg->data[0];
-			for (i = 0; i < ((tempword + 1) / 2); i++) {
-				pr_debug("dsp info data = 0x%x\n", *pmsg);
-				info->DSPInfoBlk[i + 10] = *pmsg++;
-			}
-		} else {
-			info->DSPInfoBlklen = 0;
-		}
-		break;
-	}
-	case DSP_GET_INFO:{
-		pr_debug("Got DSP_GET_INFO\n");
-		/* copy dsp info block to dsp */
-		dev->DrvMsgPend = 1;
-		/* allow any outstanding ioctl to finish */
-		mdelay(10);
-		status = ft1000_read_register(dev, &tempword,
-					      FT1000_REG_DOORBELL);
-		if (tempword & FT1000_DB_DPRAM_TX) {
-			mdelay(10);
-			status = ft1000_read_register(dev, &tempword,
-						      FT1000_REG_DOORBELL);
-			if (tempword & FT1000_DB_DPRAM_TX) {
-				mdelay(10);
-				status = ft1000_read_register(dev, &tempword,
-							FT1000_REG_DOORBELL);
-				if (tempword & FT1000_DB_DPRAM_TX)
-					break;
-			}
-		}
-		/* Put message into Slow Queue Form Pseudo header */
-		pmsg = (u16 *)info->DSPInfoBlk;
-		*pmsg++ = 0;
-		*pmsg++ = htons(info->DSPInfoBlklen + 20 + info->DSPInfoBlklen);
-		ppseudo_hdr =
-			(struct pseudo_hdr *)(u16 *)&info->DSPInfoBlk[2];
-		ppseudo_hdr->length = htons(info->DSPInfoBlklen + 4
-					    + info->DSPInfoBlklen);
-		ppseudo_hdr->source = 0x10;
-		ppseudo_hdr->destination = 0x20;
-		ppseudo_hdr->portdest = 0;
-		ppseudo_hdr->portsrc = 0;
-		ppseudo_hdr->sh_str_id = 0;
-		ppseudo_hdr->control = 0;
-		ppseudo_hdr->rsvd1 = 0;
-		ppseudo_hdr->rsvd2 = 0;
-		ppseudo_hdr->qos_class = 0;
-		/* Insert slow queue sequence number */
-		ppseudo_hdr->seq_num = info->squeseqnum++;
-		/* Insert application id */
-		ppseudo_hdr->portsrc = 0;
-		/* Calculate new checksum */
-		ppseudo_hdr->checksum = *pmsg++;
-		for (i = 1; i < 7; i++)
-			ppseudo_hdr->checksum ^= *pmsg++;
-
-		info->DSPInfoBlk[10] = 0x7200;
-		info->DSPInfoBlk[11] = htons(info->DSPInfoBlklen);
-		status = ft1000_write_dpram32(dev, 0,
-				(u8 *)&info->DSPInfoBlk[0],
-				(unsigned short)(info->DSPInfoBlklen + 22));
-		status = ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
-					       FT1000_REG_DOORBELL);
-		dev->DrvMsgPend = 0;
-		break;
-	}
-	case GET_DRV_ERR_RPT_MSG:{
-		pr_debug("Got GET_DRV_ERR_RPT_MSG\n");
-		/* copy driver error message to dsp */
-		dev->DrvMsgPend = 1;
-		/* allow any outstanding ioctl to finish */
-		mdelay(10);
-		status = ft1000_read_register(dev, &tempword,
-					      FT1000_REG_DOORBELL);
-		if (tempword & FT1000_DB_DPRAM_TX) {
-			mdelay(10);
-			status = ft1000_read_register(dev, &tempword,
-						      FT1000_REG_DOORBELL);
-			if (tempword & FT1000_DB_DPRAM_TX)
-				mdelay(10);
-		}
-		if ((tempword & FT1000_DB_DPRAM_TX) == 0) {
-			/* Put message into Slow Queue Form Pseudo header */
-			pmsg = (u16 *)&tempbuffer[0];
-			ppseudo_hdr = (struct pseudo_hdr *)pmsg;
-			ppseudo_hdr->length = htons(0x0012);
-			ppseudo_hdr->source = 0x10;
-			ppseudo_hdr->destination = 0x20;
-			ppseudo_hdr->portdest = 0;
-			ppseudo_hdr->portsrc = 0;
-			ppseudo_hdr->sh_str_id = 0;
-			ppseudo_hdr->control = 0;
-			ppseudo_hdr->rsvd1 = 0;
-			ppseudo_hdr->rsvd2 = 0;
-			ppseudo_hdr->qos_class = 0;
-			/* Insert slow queue sequence number */
-			ppseudo_hdr->seq_num = info->squeseqnum++;
-			/* Insert application id */
-			ppseudo_hdr->portsrc = 0;
-			/* Calculate new checksum */
-			ppseudo_hdr->checksum = *pmsg++;
-			for (i = 1; i < 7; i++)
-				ppseudo_hdr->checksum ^= *pmsg++;
-
-			pmsg = (u16 *)&tempbuffer[16];
-			*pmsg++ = htons(RSP_DRV_ERR_RPT_MSG);
-			*pmsg++ = htons(0x000e);
-			*pmsg++ = htons(info->DSP_TIME[0]);
-			*pmsg++ = htons(info->DSP_TIME[1]);
-			*pmsg++ = htons(info->DSP_TIME[2]);
-			*pmsg++ = htons(info->DSP_TIME[3]);
-			convert.byte[0] = info->DspVer[0];
-			convert.byte[1] = info->DspVer[1];
-			*pmsg++ = convert.wrd;
-			convert.byte[0] = info->DspVer[2];
-			convert.byte[1] = info->DspVer[3];
-			*pmsg++ = convert.wrd;
-			*pmsg++ = htons(info->DrvErrNum);
-
-			status = card_send_command(dev,
-					(unsigned char *)&tempbuffer[0],
-					(u16)(0x0012 + PSEUDOSZ));
-			if (status)
-				goto out;
-			info->DrvErrNum = 0;
-		}
-		dev->DrvMsgPend = 0;
-		break;
-	}
-	default:
-		break;
-	}
-
-	status = 0;
-out:
-	kfree(cmdbuffer);
-	return status;
-}
-
-/* Check which application has registered for dsp broadcast messages */
-static int dsp_broadcast_msg_id(struct ft1000_usb *dev)
-{
-	struct dpram_blk *pdpram_blk;
-	unsigned long flags;
-	int i;
-
-	for (i = 0; i < MAX_NUM_APP; i++) {
-		if ((dev->app_info[i].DspBCMsgFlag)
-		    && (dev->app_info[i].fileobject)
-		    && (dev->app_info[i].NumOfMsg
-			< MAX_MSG_LIMIT)) {
-			pdpram_blk = ft1000_get_buffer(&freercvpool);
-			if (pdpram_blk == NULL) {
-				pr_debug("Out of memory in free receive command pool\n");
-				dev->app_info[i].nRxMsgMiss++;
-				return -1;
-			}
-			if (ft1000_receive_cmd(dev, pdpram_blk->pbuffer,
-					       MAX_CMD_SQSIZE)) {
-				/* Put message into the
-				 * appropriate application block
-				 */
-				dev->app_info[i].nRxMsg++;
-				spin_lock_irqsave(&free_buff_lock, flags);
-				list_add_tail(&pdpram_blk->list,
-					      &dev->app_info[i] .app_sqlist);
-				dev->app_info[i].NumOfMsg++;
-				spin_unlock_irqrestore(&free_buff_lock, flags);
-				wake_up_interruptible(&dev->app_info[i]
-						      .wait_dpram_msg);
-			} else {
-				dev->app_info[i].nRxMsgMiss++;
-				ft1000_free_buffer(pdpram_blk, &freercvpool);
-				pr_debug("ft1000_get_buffer NULL\n");
-				return -1;
-			}
-		}
-	}
-	return 0;
-}
-
-static int handle_misc_portid(struct ft1000_usb *dev)
-{
-	struct dpram_blk *pdpram_blk;
-	int i;
-
-	pdpram_blk = ft1000_get_buffer(&freercvpool);
-	if (pdpram_blk == NULL) {
-		pr_debug("Out of memory in free receive command pool\n");
-		return -1;
-	}
-	if (!ft1000_receive_cmd(dev, pdpram_blk->pbuffer, MAX_CMD_SQSIZE))
-		goto exit_failure;
-
-	/* Search for correct application block */
-	for (i = 0; i < MAX_NUM_APP; i++) {
-		if (dev->app_info[i].app_id == ((struct pseudo_hdr *)
-						pdpram_blk->pbuffer)->portdest)
-			break;
-	}
-	if (i == MAX_NUM_APP) {
-		pr_debug("No application matching id = %d\n",
-			 ((struct pseudo_hdr *)pdpram_blk->pbuffer)->portdest);
-		goto exit_failure;
-	} else if (dev->app_info[i].NumOfMsg > MAX_MSG_LIMIT) {
-		goto exit_failure;
-	} else {
-		dev->app_info[i].nRxMsg++;
-		/* Put message into the appropriate application block */
-		list_add_tail(&pdpram_blk->list, &dev->app_info[i].app_sqlist);
-		dev->app_info[i].NumOfMsg++;
-	}
-	return 0;
-
-exit_failure:
-	ft1000_free_buffer(pdpram_blk, &freercvpool);
-	return -1;
-}
-
-int ft1000_poll(void *dev_id)
-{
-	struct ft1000_usb *dev = (struct ft1000_usb *)dev_id;
-	struct ft1000_info *info = netdev_priv(dev->net);
-	u16 tempword;
-	int status;
-	u16 size;
-	int i;
-	u16 data;
-	u16 modulo;
-	u16 portid;
-
-	if (ft1000_chkcard(dev) == FALSE) {
-		pr_debug("failed\n");
-		return -1;
-	}
-	status = ft1000_read_register(dev, &tempword, FT1000_REG_DOORBELL);
-	if (!status) {
-		if (tempword & FT1000_DB_DPRAM_RX) {
-			status = ft1000_read_dpram16(dev,
-						     0x200, (u8 *)&data, 0);
-			size = ntohs(data) + 16 + 2;
-			if (size % 4) {
-				modulo = 4 - (size % 4);
-				size = size + modulo;
-			}
-			status = ft1000_read_dpram16(dev, 0x201,
-						     (u8 *)&portid, 1);
-			portid &= 0xff;
-			if (size < MAX_CMD_SQSIZE) {
-				switch (portid) {
-				case DRIVERID:
-					pr_debug("FT1000_REG_DOORBELL message type: FT1000_DB_DPRAM_RX : portid DRIVERID\n");
-					status = ft1000_proc_drvmsg(dev, size);
-					if (status != 0)
-						return status;
-					break;
-				case DSPBCMSGID:
-					status = dsp_broadcast_msg_id(dev);
-					break;
-				default:
-					status = handle_misc_portid(dev);
-					break;
-				}
-			} else
-				pr_debug("Invalid total length for SlowQ = %d\n",
-					 size);
-			status = ft1000_write_register(dev,
-						       FT1000_DB_DPRAM_RX,
-						       FT1000_REG_DOORBELL);
-		} else if (tempword & FT1000_DSP_ASIC_RESET) {
-			/* Let's reset the ASIC from the Host side as well */
-			status = ft1000_write_register(dev, ASIC_RESET_BIT,
-						       FT1000_REG_RESET);
-			status = ft1000_read_register(dev, &tempword,
-						      FT1000_REG_RESET);
-			i = 0;
-			while (tempword & ASIC_RESET_BIT) {
-				status = ft1000_read_register(dev, &tempword,
-							      FT1000_REG_RESET);
-				usleep_range(9000, 11000);
-				i++;
-				if (i == 100)
-					break;
-			}
-			if (i == 100) {
-				pr_debug("Unable to reset ASIC\n");
-				return 0;
-			}
-			usleep_range(9000, 11000);
-			/* Program WMARK register */
-			status = ft1000_write_register(dev, 0x600,
-					       FT1000_REG_MAG_WATERMARK);
-			/* clear ASIC reset doorbell */
-			status = ft1000_write_register(dev,
-						       FT1000_DSP_ASIC_RESET,
-						       FT1000_REG_DOORBELL);
-			usleep_range(9000, 11000);
-		} else if (tempword & FT1000_ASIC_RESET_REQ) {
-			pr_debug("FT1000_REG_DOORBELL message type: FT1000_ASIC_RESET_REQ\n");
-			/* clear ASIC reset request from DSP */
-			status = ft1000_write_register(dev,
-						       FT1000_ASIC_RESET_REQ,
-						       FT1000_REG_DOORBELL);
-			status = ft1000_write_register(dev, HOST_INTF_BE,
-						       FT1000_REG_SUP_CTRL);
-			/* copy dsp session record from Adapter block */
-			status = ft1000_write_dpram32(dev, 0,
-				      (u8 *)&info->DSPSess.Rec[0], 1024);
-			status = ft1000_write_register(dev, 0x600,
-					       FT1000_REG_MAG_WATERMARK);
-			/* ring doorbell to tell DSP that
-			 * ASIC is out of reset
-			 * */
-			status = ft1000_write_register(dev,
-						       FT1000_ASIC_RESET_DSP,
-						       FT1000_REG_DOORBELL);
-		} else if (tempword & FT1000_DB_COND_RESET) {
-			pr_debug("FT1000_REG_DOORBELL message type: FT1000_DB_COND_RESET\n");
-			if (!dev->fAppMsgPend) {
-				/* Reset ASIC and DSP */
-				status = ft1000_read_dpram16(dev,
-						FT1000_MAG_DSP_TIMER0,
-						(u8 *)&info->DSP_TIME[0],
-						FT1000_MAG_DSP_TIMER0_INDX);
-				status = ft1000_read_dpram16(dev,
-						FT1000_MAG_DSP_TIMER1,
-						(u8 *)&info->DSP_TIME[1],
-						FT1000_MAG_DSP_TIMER1_INDX);
-				status = ft1000_read_dpram16(dev,
-						FT1000_MAG_DSP_TIMER2,
-						(u8 *)&info->DSP_TIME[2],
-						FT1000_MAG_DSP_TIMER2_INDX);
-				status = ft1000_read_dpram16(dev,
-						FT1000_MAG_DSP_TIMER3,
-						(u8 *)&info->DSP_TIME[3],
-						FT1000_MAG_DSP_TIMER3_INDX);
-				info->CardReady = 0;
-				info->DrvErrNum = DSP_CONDRESET_INFO;
-				pr_debug("DSP conditional reset requested\n");
-				info->ft1000_reset(dev->net);
-			} else {
-				dev->fProvComplete = false;
-				dev->fCondResetPend = true;
-			}
-			ft1000_write_register(dev, FT1000_DB_COND_RESET,
-					      FT1000_REG_DOORBELL);
-		}
-	}
-	return 0;
-}
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_ioctl.h b/drivers/staging/ft1000/ft1000-usb/ft1000_ioctl.h
deleted file mode 100644
index e9472bebda0b..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_ioctl.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- *---------------------------------------------------------------------------
- * FT1000 driver for Flarion Flash OFDM NIC Device
- *
- * Copyright (C) 2002 Flarion Technologies, All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) any
- * later version. This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details. You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place -
- * Suite 330, Boston, MA 02111-1307, USA.
- *---------------------------------------------------------------------------
- *
- * File:         ft1000_ioctl.h
- *
- * Description:    Common structures and defines relating to IOCTL
- *
- * History:
- * 11/5/02    Whc                Created.
- *
- *---------------------------------------------------------------------------
- */
-#ifndef _FT1000IOCTLH_
-#define _FT1000IOCTLH_
-
-struct IOCTL_GET_VER {
-	unsigned long drv_ver;
-} __packed;
-
-/* Data structure for Dsp statistics */
-struct IOCTL_GET_DSP_STAT {
-	unsigned char DspVer[DSPVERSZ];        /* DSP version number */
-	unsigned char HwSerNum[HWSERNUMSZ];    /* Hardware Serial Number */
-	unsigned char Sku[SKUSZ];              /* SKU */
-	unsigned char eui64[EUISZ];            /* EUI64 */
-	unsigned short ConStat;                /* Connection Status */
-	/*    Bits 0-3 = Connection Status Field */
-	/*               0000=Idle (Disconnect) */
-	/*               0001=Searching */
-	/*               0010=Active (Connected) */
-	/*               0011=Waiting for L2 down */
-	/*               0100=Sleep */
-	unsigned short LedStat;                /* Led Status */
-	/*    Bits 0-3   = Signal Strength Field */
-	/*                 0000 = -105dBm to -92dBm */
-	/*                 0001 = -92dBm to -85dBm */
-	/*                 0011 = -85dBm to -75dBm */
-	/*                 0111 = -75dBm to -50dBm */
-	/*                 1111 = -50dBm to 0dBm */
-	/*    Bits 4-7   = Reserved */
-	/*    Bits 8-11  = SNR Field */
-	/*                 0000 = <2dB */
-	/*                 0001 = 2dB to 8dB */
-	/*                 0011 = 8dB to 15dB */
-	/*                 0111 = 15dB to 22dB */
-	/*                 1111 = >22dB */
-	/*    Bits 12-15 = Reserved */
-	unsigned long nTxPkts;                /* Number of packets transmitted
-					       * from host to dsp
-					       */
-	unsigned long nRxPkts;                /* Number of packets received from
-					       * dsp to host
-					       */
-	unsigned long nTxBytes;               /* Number of bytes transmitted
-					       * from host to dsp
-					       */
-	unsigned long nRxBytes;               /* Number of bytes received from
-					       * dsp to host
-					       */
-	unsigned long ConTm;                  /* Current session connection time
-					       * in seconds
-					       */
-	unsigned char CalVer[CALVERSZ];       /* Proprietary Calibration
-					       * Version
-					       */
-	unsigned char CalDate[CALDATESZ];     /* Proprietary Calibration Date */
-} __packed;
-
-/* Data structure for Dual Ported RAM messaging between Host and Dsp */
-struct IOCTL_DPRAM_BLK {
-	unsigned short total_len;
-	struct pseudo_hdr pseudohdr;
-	unsigned char buffer[1780];
-} __packed;
-
-struct IOCTL_DPRAM_COMMAND {
-	unsigned short extra;
-	struct IOCTL_DPRAM_BLK dpram_blk;
-} __packed;
-
-/*
- * Custom IOCTL command codes
- */
-#define FT1000_MAGIC_CODE      'F'
-
-#define IOCTL_REGISTER_CMD	0
-#define IOCTL_SET_DPRAM_CMD	3
-#define IOCTL_GET_DPRAM_CMD	4
-#define IOCTL_GET_DSP_STAT_CMD	6
-#define IOCTL_GET_VER_CMD	7
-#define IOCTL_CONNECT		10
-#define IOCTL_DISCONNECT	11
-
-#define IOCTL_FT1000_GET_DSP_STAT _IOR(FT1000_MAGIC_CODE,		\
-				       IOCTL_GET_DSP_STAT_CMD,		\
-				       struct IOCTL_GET_DSP_STAT)
-#define IOCTL_FT1000_GET_VER _IOR(FT1000_MAGIC_CODE, IOCTL_GET_VER_CMD, \
-				  struct IOCTL_GET_VER)
-#define IOCTL_FT1000_CONNECT _IO(FT1000_MAGIC_CODE, IOCTL_CONNECT)
-#define IOCTL_FT1000_DISCONNECT _IO(FT1000_MAGIC_CODE, IOCTL_DISCONNECT)
-#define IOCTL_FT1000_SET_DPRAM _IOW(FT1000_MAGIC_CODE, IOCTL_SET_DPRAM_CMD, \
-				    struct IOCTL_DPRAM_BLK)
-#define IOCTL_FT1000_GET_DPRAM _IOR(FT1000_MAGIC_CODE, IOCTL_GET_DPRAM_CMD, \
-				    struct IOCTL_DPRAM_BLK)
-#define IOCTL_FT1000_REGISTER  _IOW(FT1000_MAGIC_CODE, IOCTL_REGISTER_CMD, \
-				    unsigned short *)
-
-#endif /* _FT1000IOCTLH_ */
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
deleted file mode 100644
index fd255c62083f..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*=====================================================
- * CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
- *
- *
- * This file is part of Express Card USB Driver
- *====================================================
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/firmware.h>
-#include "ft1000_usb.h"
-
-#include <linux/kthread.h>
-
-MODULE_DESCRIPTION("FT1000 EXPRESS CARD DRIVER");
-MODULE_LICENSE("Dual MPL/GPL");
-MODULE_SUPPORTED_DEVICE("QFT FT1000 Express Cards");
-
-void *pFileStart;
-size_t FileLength;
-
-#define VENDOR_ID 0x1291	/* Qualcomm vendor id */
-#define PRODUCT_ID 0x11		/* fake product id */
-
-/* table of devices that work with this driver */
-static struct usb_device_id id_table[] = {
-	{USB_DEVICE(VENDOR_ID, PRODUCT_ID)},
-	{},
-};
-
-MODULE_DEVICE_TABLE(usb, id_table);
-
-static bool gPollingfailed;
-static int ft1000_poll_thread(void *arg)
-{
-	int ret;
-
-	while (!kthread_should_stop()) {
-		usleep_range(10000, 11000);
-		if (!gPollingfailed) {
-			ret = ft1000_poll(arg);
-			if (ret != 0) {
-				pr_debug("polling failed\n");
-				gPollingfailed = true;
-			}
-		}
-	}
-	return 0;
-}
-
-static int ft1000_probe(struct usb_interface *interface,
-			const struct usb_device_id *id)
-{
-	struct usb_host_interface *iface_desc;
-	struct usb_endpoint_descriptor *endpoint;
-	struct usb_device *dev;
-	unsigned numaltsetting;
-	int i, ret = 0, size;
-
-	struct ft1000_usb *ft1000dev;
-	struct ft1000_info *pft1000info = NULL;
-	const struct firmware *dsp_fw;
-
-	ft1000dev = kzalloc(sizeof(struct ft1000_usb), GFP_KERNEL);
-	if (!ft1000dev)
-		return -ENOMEM;
-
-	dev = interface_to_usbdev(interface);
-	pr_debug("usb device descriptor info - number of configuration is %d\n",
-		 dev->descriptor.bNumConfigurations);
-
-	ft1000dev->dev = dev;
-	ft1000dev->status = 0;
-	ft1000dev->net = NULL;
-	ft1000dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
-	ft1000dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!ft1000dev->tx_urb || !ft1000dev->rx_urb) {
-		ret = -ENOMEM;
-		goto err_fw;
-	}
-
-	numaltsetting = interface->num_altsetting;
-	pr_debug("number of alt settings is: %d\n", numaltsetting);
-	iface_desc = interface->cur_altsetting;
-	pr_debug("number of endpoints is: %d\n",
-		 iface_desc->desc.bNumEndpoints);
-	pr_debug("descriptor type is: %d\n", iface_desc->desc.bDescriptorType);
-	pr_debug("interface number is: %d\n",
-		 iface_desc->desc.bInterfaceNumber);
-	pr_debug("alternatesetting is: %d\n",
-		 iface_desc->desc.bAlternateSetting);
-	pr_debug("interface class is: %d\n", iface_desc->desc.bInterfaceClass);
-	pr_debug("control endpoint info:\n");
-	pr_debug("descriptor0 type -- %d\n",
-		 iface_desc->endpoint[0].desc.bmAttributes);
-	pr_debug("descriptor1 type -- %d\n",
-		 iface_desc->endpoint[1].desc.bmAttributes);
-	pr_debug("descriptor2 type -- %d\n",
-		 iface_desc->endpoint[2].desc.bmAttributes);
-
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
-		endpoint =
-			(struct usb_endpoint_descriptor *)&iface_desc->
-			endpoint[i].desc;
-		pr_debug("endpoint %d\n", i);
-		pr_debug("bEndpointAddress=%x, bmAttributes=%x\n",
-			 endpoint->bEndpointAddress, endpoint->bmAttributes);
-		if ((endpoint->bEndpointAddress & USB_DIR_IN)
-		    && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-			USB_ENDPOINT_XFER_BULK)) {
-			ft1000dev->bulk_in_endpointAddr =
-				endpoint->bEndpointAddress;
-			pr_debug("in: %d\n", endpoint->bEndpointAddress);
-		}
-
-		if (!(endpoint->bEndpointAddress & USB_DIR_IN)
-		    && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-			USB_ENDPOINT_XFER_BULK)) {
-			ft1000dev->bulk_out_endpointAddr =
-				endpoint->bEndpointAddress;
-			pr_debug("out: %d\n", endpoint->bEndpointAddress);
-		}
-	}
-
-	pr_debug("bulk_in=%d, bulk_out=%d\n",
-		 ft1000dev->bulk_in_endpointAddr,
-		 ft1000dev->bulk_out_endpointAddr);
-
-	ret = request_firmware(&dsp_fw, "ft3000.img", &dev->dev);
-	if (ret < 0) {
-		dev_err(interface->usb_dev, "Error request_firmware()\n");
-		goto err_fw;
-	}
-
-	size = max_t(uint, dsp_fw->size, 4096);
-	pFileStart = kmalloc(size, GFP_KERNEL);
-
-	if (!pFileStart) {
-		release_firmware(dsp_fw);
-		ret = -ENOMEM;
-		goto err_fw;
-	}
-
-	memcpy(pFileStart, dsp_fw->data, dsp_fw->size);
-	FileLength = dsp_fw->size;
-	release_firmware(dsp_fw);
-
-	pr_debug("start downloading dsp image...\n");
-
-	ret = init_ft1000_netdev(ft1000dev);
-	if (ret)
-		goto err_load;
-
-	pft1000info = netdev_priv(ft1000dev->net);
-
-	pr_debug("pft1000info=%p\n", pft1000info);
-	ret = dsp_reload(ft1000dev);
-	if (ret) {
-		dev_err(interface->usb_dev,
-			"Problem with DSP image loading\n");
-		goto err_load;
-	}
-
-	gPollingfailed = false;
-	ft1000dev->pPollThread =
-		kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
-
-	if (IS_ERR(ft1000dev->pPollThread)) {
-		ret = PTR_ERR(ft1000dev->pPollThread);
-		goto err_load;
-	}
-
-	msleep(500);
-
-	while (!pft1000info->CardReady) {
-		if (gPollingfailed) {
-			ret = -EIO;
-			goto err_thread;
-		}
-		msleep(100);
-		pr_debug("Waiting for Card Ready\n");
-	}
-
-	pr_debug("Card Ready!!!! Registering network device\n");
-
-	ret = reg_ft1000_netdev(ft1000dev, interface);
-	if (ret)
-		goto err_thread;
-
-	ft1000dev->NetDevRegDone = 1;
-
-	return 0;
-
-err_thread:
-	kthread_stop(ft1000dev->pPollThread);
-err_load:
-	kfree(pFileStart);
-err_fw:
-	usb_free_urb(ft1000dev->rx_urb);
-	usb_free_urb(ft1000dev->tx_urb);
-	kfree(ft1000dev);
-	return ret;
-}
-
-static void ft1000_disconnect(struct usb_interface *interface)
-{
-	struct ft1000_info *pft1000info;
-	struct ft1000_usb *ft1000dev;
-
-	pft1000info = (struct ft1000_info *)usb_get_intfdata(interface);
-	pr_debug("In disconnect pft1000info=%p\n", pft1000info);
-
-	if (pft1000info) {
-		ft1000dev = pft1000info->priv;
-		if (ft1000dev->pPollThread)
-			kthread_stop(ft1000dev->pPollThread);
-
-		pr_debug("threads are terminated\n");
-
-		if (ft1000dev->net) {
-			pr_debug("destroy char driver\n");
-			ft1000_destroy_dev(ft1000dev->net);
-			unregister_netdev(ft1000dev->net);
-			pr_debug("network device unregistered\n");
-			free_netdev(ft1000dev->net);
-
-		}
-
-		usb_free_urb(ft1000dev->rx_urb);
-		usb_free_urb(ft1000dev->tx_urb);
-
-		pr_debug("urb freed\n");
-
-		kfree(ft1000dev);
-	}
-	kfree(pFileStart);
-}
-
-static struct usb_driver ft1000_usb_driver = {
-	.name = "ft1000usb",
-	.probe = ft1000_probe,
-	.disconnect = ft1000_disconnect,
-	.id_table = id_table,
-};
-
-module_usb_driver(ft1000_usb_driver);
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
deleted file mode 100644
index 9b5050fcbb66..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
+++ /dev/null
@@ -1,150 +0,0 @@
-#ifndef _FT1000_USB_H_
-#define _FT1000_USB_H_
-
-#include "../ft1000.h"
-#include "ft1000_ioctl.h"
-#define FT1000_DRV_VER      0x01010403
-
-#define  MAX_NUM_APP         6
-#define  MAX_MSG_LIMIT       200
-#define  NUM_OF_FREE_BUFFERS 1500
-
-#define PSEUDOSZ                16
-
-struct app_info_block {
-	u32 nTxMsg;                    /* DPRAM msg sent to DSP with app_id */
-	u32 nRxMsg;                    /* DPRAM msg rcv from dsp with app_id */
-	u32 nTxMsgReject;              /* DPRAM msg rejected due to DSP doorbell
-					* set
-					*/
-	u32 nRxMsgMiss;                /* DPRAM msg dropped due to overflow */
-	struct fown_struct *fileobject;/* Application's file object */
-	u16 app_id;                    /* Application id */
-	int DspBCMsgFlag;
-	int NumOfMsg;                   /* number of messages queued up */
-	wait_queue_head_t wait_dpram_msg;
-	struct list_head app_sqlist;   /* link list of msgs for applicaton on
-					* slow queue
-					*/
-} __packed;
-
-#define FALSE           0
-#define TRUE            1
-
-#define FT1000_STATUS_CLOSING  0x01
-
-#define DSPBCMSGID              0x10
-
-/* Electrabuzz specific DPRAM mapping */
-/* this is used by ft1000_usb driver - isn't that a bug? */
-#undef FT1000_DPRAM_RX_BASE
-#define FT1000_DPRAM_RX_BASE	0x1800	/* RX AREA (SlowQ) */
-
-/* MEMORY MAP FOR MAGNEMITE */
-/* the indexes are swapped comparing to PCMCIA - is it OK or a bug? */
-#undef FT1000_MAG_DSP_LED_INDX
-#define FT1000_MAG_DSP_LED_INDX		0x1	/* dsp led status for PAD
-						 * device
-						 */
-#undef FT1000_MAG_DSP_CON_STATE_INDX
-#define FT1000_MAG_DSP_CON_STATE_INDX	0x0	/* DSP Connection Status Info */
-
-/* Maximum times trying to get ASIC out of reset */
-#define MAX_ASIC_RESET_CNT      20
-
-#define MAX_BUF_SIZE            4096
-
-struct ft1000_debug_dirs {
-	struct list_head list;
-	struct dentry *dent;
-	struct dentry *file;
-	int int_number;
-};
-
-struct ft1000_usb {
-	struct usb_device *dev;
-	struct net_device *net;
-
-	u32 status;
-
-	struct urb *rx_urb;
-	struct urb *tx_urb;
-
-	u8 tx_buf[MAX_BUF_SIZE];
-	u8 rx_buf[MAX_BUF_SIZE];
-
-	u8 bulk_in_endpointAddr;
-	u8 bulk_out_endpointAddr;
-
-	struct task_struct *pPollThread;
-	unsigned char fcodeldr;
-	unsigned char bootmode;
-	unsigned char usbboot;
-	unsigned short dspalive;
-	bool fProvComplete;
-	bool fCondResetPend;
-	bool fAppMsgPend;
-	int DeviceCreated;
-	int NetDevRegDone;
-	u8 CardNumber;
-	u8 DeviceName[15];
-	struct ft1000_debug_dirs nodes;
-	spinlock_t fifo_lock;
-	int appcnt;
-	struct app_info_block app_info[MAX_NUM_APP];
-	u16 DrvMsgPend;
-	unsigned short tempbuf[32];
-} __packed;
-
-
-struct dpram_blk {
-	struct list_head list;
-	u16 *pbuffer;
-} __packed;
-
-int ft1000_read_register(struct ft1000_usb *ft1000dev,
-			 u16 *Data, u16 nRegIndx);
-int ft1000_write_register(struct ft1000_usb *ft1000dev,
-			  u16 value, u16 nRegIndx);
-int ft1000_read_dpram32(struct ft1000_usb *ft1000dev,
-			u16 indx, u8 *buffer, u16 cnt);
-int ft1000_write_dpram32(struct ft1000_usb *ft1000dev,
-			 u16 indx, u8 *buffer, u16 cnt);
-int ft1000_read_dpram16(struct ft1000_usb *ft1000dev,
-			u16 indx, u8 *buffer, u8 highlow);
-int ft1000_write_dpram16(struct ft1000_usb *ft1000dev,
-			 u16 indx, u16 value, u8 highlow);
-int fix_ft1000_read_dpram32(struct ft1000_usb *ft1000dev,
-			    u16 indx, u8 *buffer);
-int fix_ft1000_write_dpram32(struct ft1000_usb *ft1000dev,
-			     u16 indx, u8 *buffer);
-
-extern void *pFileStart;
-extern size_t FileLength;
-extern int numofmsgbuf;
-
-int ft1000_close(struct net_device *dev);
-int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
-		u32  FileLength);
-
-extern struct list_head freercvpool;
-
-/* lock to arbitrate free buffer list for receive command data */
-extern spinlock_t free_buff_lock;
-
-int ft1000_create_dev(struct ft1000_usb *dev);
-void ft1000_destroy_dev(struct net_device *dev);
-int card_send_command(struct ft1000_usb *ft1000dev,
-		      void *ptempbuffer, int size);
-
-struct dpram_blk *ft1000_get_buffer(struct list_head *bufflist);
-void ft1000_free_buffer(struct dpram_blk *pdpram_blk, struct list_head *plist);
-
-int dsp_reload(struct ft1000_usb *ft1000dev);
-int init_ft1000_netdev(struct ft1000_usb *ft1000dev);
-struct usb_interface;
-int reg_ft1000_netdev(struct ft1000_usb *ft1000dev,
-		      struct usb_interface *intf);
-int ft1000_poll(void *dev_id);
-
-#endif  /* _FT1000_USB_H_ */
diff --git a/drivers/staging/ft1000/ft1000-usb/ft3000.img b/drivers/staging/ft1000/ft1000-usb/ft3000.img
deleted file mode 100644
index 7bef6bd3680a..000000000000
--- a/drivers/staging/ft1000/ft1000-usb/ft3000.img
+++ /dev/null
diff --git a/drivers/staging/ft1000/ft1000.h b/drivers/staging/ft1000/ft1000.h
deleted file mode 100644
index 8a2e4caa532d..000000000000
--- a/drivers/staging/ft1000/ft1000.h
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * Common structures and definitions for FT1000 Flarion Flash OFDM PCMCIA and
- * USB devices.
- *
- * Originally copyright (c) 2002 Flarion Technologies
- *
- */
-
-#define DSPVERSZ	4
-#define HWSERNUMSZ	16
-#define SKUSZ		20
-#define EUISZ		8
-#define MODESZ		2
-#define CALVERSZ	2
-#define CALDATESZ	6
-
-#define ELECTRABUZZ_ID	0	/* ASIC ID for Electrabuzz */
-#define MAGNEMITE_ID	0x1a01	/* ASIC ID for Magnemite */
-
-/* MEMORY MAP common to both ELECTRABUZZ and MAGNEMITE */
-#define	FT1000_REG_DPRAM_ADDR	0x000E	/* DPADR - Dual Port Ram Indirect
-					 * Address Register
-					 */
-#define	FT1000_REG_SUP_CTRL	0x0020	/* HCTR - Host Control Register */
-#define	FT1000_REG_SUP_STAT	0x0022	/* HSTAT - Host Status Register */
-#define	FT1000_REG_RESET	0x0024	/* HCTR - Host Control Register */
-#define	FT1000_REG_SUP_ISR	0x0026	/* HISR - Host Interrupt Status
-					 * Register
-					 */
-#define	FT1000_REG_SUP_IMASK	0x0028	/* HIMASK - Host Interrupt Mask */
-#define	FT1000_REG_DOORBELL	0x002a	/* DBELL - Door Bell Register */
-#define FT1000_REG_ASIC_ID	0x002e	/* ASICID - ASIC Identification
-					 * Number
-					 */
-
-/* MEMORY MAP FOR ELECTRABUZZ ASIC */
-#define FT1000_REG_UFIFO_STAT	0x0000	/* UFSR - Uplink FIFO status register */
-#define FT1000_REG_UFIFO_BEG	0x0002	/* UFBR	- Uplink FIFO beginning
-					 * register
-					 */
-#define	FT1000_REG_UFIFO_MID	0x0004	/* UFMR	- Uplink FIFO middle register */
-#define	FT1000_REG_UFIFO_END	0x0006	/* UFER	- Uplink FIFO end register */
-#define	FT1000_REG_DFIFO_STAT	0x0008	/* DFSR - Downlink FIFO status
-					 * register
-					 */
-#define	FT1000_REG_DFIFO	0x000A	/* DFR - Downlink FIFO Register */
-#define	FT1000_REG_DPRAM_DATA	0x000C	/* DPRAM - Dual Port Indirect
-					 * Data Register
-					 */
-#define	FT1000_REG_WATERMARK	0x0010	/* WMARK - Watermark Register */
-
-/* MEMORY MAP FOR MAGNEMITE */
-#define FT1000_REG_MAG_UFDR	0x0000	/* UFDR - Uplink FIFO Data
-					 * Register (32-bits)
-					 */
-#define FT1000_REG_MAG_UFDRL	0x0000	/* UFDRL - Uplink FIFO Data
-					 * Register low-word (16-bits)
-					 */
-#define FT1000_REG_MAG_UFDRH	0x0002	/* UFDRH - Uplink FIFO Data Register
-					 * high-word (16-bits)
-					 */
-#define FT1000_REG_MAG_UFER	0x0004	/* UFER - Uplink FIFO End Register */
-#define FT1000_REG_MAG_UFSR	0x0006	/* UFSR - Uplink FIFO Status Register */
-#define FT1000_REG_MAG_DFR	0x0008	/* DFR - Downlink FIFO Register
-					 * (32-bits)
-					 */
-#define FT1000_REG_MAG_DFRL	0x0008	/* DFRL - Downlink FIFO Register
-					 * low-word (16-bits)
-					 */
-#define FT1000_REG_MAG_DFRH	0x000a	/* DFRH - Downlink FIFO Register
-					 * high-word (16-bits)
-					 */
-#define FT1000_REG_MAG_DFSR	0x000c	/* DFSR - Downlink FIFO Status
-					 * Register
-					 */
-#define FT1000_REG_MAG_DPDATA	0x0010	/* DPDATA - Dual Port RAM Indirect
-					 * Data Register (32-bits)
-					 */
-#define FT1000_REG_MAG_DPDATAL	0x0010	/* DPDATAL - Dual Port RAM Indirect
-					 * Data Register low-word (16-bits)
-					 */
-#define FT1000_REG_MAG_DPDATAH	0x0012	/* DPDATAH - Dual Port RAM Indirect Data
-					 * Register high-word (16-bits)
-					 */
-#define	FT1000_REG_MAG_WATERMARK 0x002c	/* WMARK - Watermark Register */
-#define FT1000_REG_MAG_VERSION	0x0030	/* LLC Version */
-
-/* Reserved Dual Port RAM offsets for Electrabuzz */
-#define FT1000_DPRAM_TX_BASE	0x0002	/* Host to PC Card Messaging Area */
-#define FT1000_DPRAM_RX_BASE	0x0800	/* PC Card to Host Messaging Area */
-#define FT1000_FIFO_LEN		0x07FC	/* total length for DSP FIFO tracking */
-#define FT1000_HI_HO		0x07FE	/* heartbeat with HI/HO */
-#define FT1000_DSP_STATUS	0x0FFE	/* dsp status - non-zero is a request
-					 * to reset dsp
-					 */
-#define FT1000_DSP_LED		0x0FFA	/* dsp led status for PAD device */
-#define FT1000_DSP_CON_STATE	0x0FF8	/* DSP Connection Status Info */
-#define FT1000_DPRAM_FEFE	0x0002	/* location for dsp ready indicator */
-#define FT1000_DSP_TIMER0	0x1FF0	/* Timer Field from Basestation */
-#define FT1000_DSP_TIMER1	0x1FF2	/* Timer Field from Basestation */
-#define FT1000_DSP_TIMER2	0x1FF4	/* Timer Field from Basestation */
-#define FT1000_DSP_TIMER3	0x1FF6	/* Timer Field from Basestation */
-
-/* Reserved Dual Port RAM offsets for Magnemite */
-#define FT1000_DPRAM_MAG_TX_BASE	0x0000	/* Host to PC Card
-						 * Messaging Area
-						 */
-#define FT1000_DPRAM_MAG_RX_BASE	0x0200	/* PC Card to Host
-						 * Messaging Area
-						 */
-
-#define FT1000_MAG_FIFO_LEN		0x1FF	/* total length for DSP
-						 * FIFO tracking
-						 */
-#define FT1000_MAG_FIFO_LEN_INDX	0x1	/* low-word index */
-#define FT1000_MAG_HI_HO		0x1FF	/* heartbeat with HI/HO */
-#define FT1000_MAG_HI_HO_INDX		0x0	/* high-word index */
-#define FT1000_MAG_DSP_LED		0x3FE	/* dsp led status for
-						 * PAD device
-						 */
-#define FT1000_MAG_DSP_LED_INDX		0x0	/* dsp led status for
-						 * PAD device
-						 */
-#define FT1000_MAG_DSP_CON_STATE	0x3FE	/* DSP Connection Status Info */
-#define FT1000_MAG_DSP_CON_STATE_INDX	0x1	/* DSP Connection Status Info */
-#define FT1000_MAG_DPRAM_FEFE		0x000	/* location for dsp ready
-						 * indicator
-						 */
-#define FT1000_MAG_DPRAM_FEFE_INDX	0x0	/* location for dsp ready
-						 * indicator
-						 */
-#define FT1000_MAG_DSP_TIMER0		0x3FC	/* Timer Field from
-						 * Basestation
-						 */
-#define FT1000_MAG_DSP_TIMER0_INDX	0x1
-#define FT1000_MAG_DSP_TIMER1		0x3FC	/* Timer Field from
-						 * Basestation
-						 */
-#define FT1000_MAG_DSP_TIMER1_INDX	0x0
-#define FT1000_MAG_DSP_TIMER2		0x3FD	/* Timer Field from
-						 * Basestation
-						 */
-#define FT1000_MAG_DSP_TIMER2_INDX	0x1
-#define FT1000_MAG_DSP_TIMER3		0x3FD	/* Timer Field from
-						 * Basestation
-						 */
-#define FT1000_MAG_DSP_TIMER3_INDX	0x0
-#define FT1000_MAG_TOTAL_LEN		0x200
-#define FT1000_MAG_TOTAL_LEN_INDX	0x1
-#define FT1000_MAG_PH_LEN		0x200
-#define FT1000_MAG_PH_LEN_INDX		0x0
-#define FT1000_MAG_PORT_ID		0x201
-#define FT1000_MAG_PORT_ID_INDX		0x0
-
-#define HOST_INTF_LE	0x0	/* Host interface little endian mode */
-#define HOST_INTF_BE	0x1	/* Host interface big endian mode */
-
-/* FT1000 to Host Doorbell assignments */
-#define FT1000_DB_DPRAM_RX	0x0001	/* this value indicates that DSP
-					 * has data for host in DPRAM
-					 */
-#define FT1000_DB_DNLD_RX	0x0002	/* Downloader handshake doorbell */
-#define FT1000_ASIC_RESET_REQ	0x0004	/* DSP requesting host to
-					 * reset the ASIC
-					 */
-#define FT1000_DSP_ASIC_RESET	0x0008	/* DSP indicating host that
-					 * it will reset the ASIC
-					 */
-#define FT1000_DB_COND_RESET	0x0010	/* DSP request for a card reset. */
-
-/* Host to FT1000 Doorbell assignments */
-#define FT1000_DB_DPRAM_TX	0x0100	/* this value indicates that host
-					 * has data for DSP in DPRAM.
-					 */
-#define FT1000_DB_DNLD_TX	0x0200	/* Downloader handshake doorbell */
-#define FT1000_ASIC_RESET_DSP	0x0400	/* Responds to FT1000_ASIC_RESET_REQ */
-#define FT1000_DB_HB		0x1000	/* Indicates that supervisor has a
-					 * heartbeat message for DSP.
-					 */
-
-#define hi			0x6869	/* PC Card heartbeat values */
-#define ho			0x686f	/* PC Card heartbeat values */
-
-/* Magnemite specific defines */
-#define hi_mag			0x6968	/* Byte swap hi to avoid
-					 * additional system call
-					 */
-#define ho_mag			0x6f68	/* Byte swap ho to avoid
-					 * additional system call
-					 */
-
-/* Bit field definitions for Host Interrupt Status Register */
-/* Indicate the cause of an interrupt. */
-#define ISR_EMPTY		0x00	/* no bits set */
-#define ISR_DOORBELL_ACK	0x01	/* Doorbell acknowledge from DSP */
-#define ISR_DOORBELL_PEND	0x02	/* Doorbell pending from DSP */
-#define ISR_RCV			0x04	/* Packet available in Downlink FIFO */
-#define ISR_WATERMARK		0x08	/* Watermark requirements satisfied */
-
-/* Bit field definition for Host Interrupt Mask */
-#define ISR_MASK_NONE		0x0000	/* no bits set */
-#define ISR_MASK_DOORBELL_ACK	0x0001	/* Doorbell acknowledge mask */
-#define ISR_MASK_DOORBELL_PEND	0x0002	/* Doorbell pending mask */
-#define ISR_MASK_RCV		0x0004	/* Downlink Packet available mask */
-#define ISR_MASK_WATERMARK	0x0008	/* Watermark interrupt mask */
-#define ISR_MASK_ALL		0xffff	/* Mask all interrupts */
-/* Default interrupt mask
- * (Enable Doorbell pending and Packet available interrupts)
- */
-#define ISR_DEFAULT_MASK	0x7ff9
-
-/* Bit field definition for Host Control Register */
-#define DSP_RESET_BIT		0x0001	/* Bit field to control
-					 * dsp reset state
-					 */
-					/* (0 = out of reset 1 = reset) */
-#define ASIC_RESET_BIT		0x0002	/* Bit field to control
-					 * ASIC reset state
-					 */
-					/* (0 = out of reset 1 = reset) */
-#define DSP_UNENCRYPTED		0x0004
-#define DSP_ENCRYPTED		0x0008
-#define EFUSE_MEM_DISABLE	0x0040
-
-/* Application specific IDs */
-#define DSPID		0x20
-#define HOSTID		0x10
-#define DSPAIRID	0x90
-#define DRIVERID	0x00
-#define NETWORKID	0x20
-
-/* Size of DPRAM Message */
-#define MAX_CMD_SQSIZE	1780
-
-#define ENET_MAX_SIZE		1514
-#define ENET_HEADER_SIZE	14
-
-#define SLOWQ_TYPE	0
-#define FASTQ_TYPE	1
-
-#define MAX_DSP_SESS_REC	1024
-
-#define DSP_QID_OFFSET	4
-
-/* Driver message types */
-#define MEDIA_STATE		0x0010
-#define TIME_UPDATE		0x0020
-#define DSP_PROVISION		0x0030
-#define DSP_INIT_MSG		0x0050
-#define DSP_HIBERNATE		0x0060
-#define DSP_STORE_INFO		0x0070
-#define DSP_GET_INFO		0x0071
-#define GET_DRV_ERR_RPT_MSG	0x0073
-#define RSP_DRV_ERR_RPT_MSG	0x0074
-
-/* Driver Error Messages for DSP */
-#define DSP_HB_INFO		0x7ef0
-#define DSP_FIFO_INFO		0x7ef1
-#define DSP_CONDRESET_INFO	0x7ef2
-#define DSP_CMDLEN_INFO		0x7ef3
-#define DSP_CMDPHCKSUM_INFO	0x7ef4
-#define DSP_PKTPHCKSUM_INFO	0x7ef5
-#define DSP_PKTLEN_INFO		0x7ef6
-#define DSP_USER_RESET		0x7ef7
-#define FIFO_FLUSH_MAXLIMIT	0x7ef8
-#define FIFO_FLUSH_BADCNT	0x7ef9
-#define FIFO_ZERO_LEN		0x7efa
-
-/* Pseudo Header structure */
-struct pseudo_hdr {
-	unsigned short	length;		/* length of msg body */
-	unsigned char	source;		/* hardware source id */
-					/*    Host = 0x10 */
-					/*    Dsp  = 0x20 */
-	unsigned char	destination;	/* hardware destination id
-					 * (refer to source)
-					 */
-	unsigned char	portdest;	/* software destination port id */
-					/*    Host = 0x00 */
-					/*    Applicaton Broadcast = 0x10 */
-					/*    Network Stack = 0x20 */
-					/*    Dsp OAM = 0x80 */
-					/*    Dsp Airlink = 0x90 */
-					/*    Dsp Loader = 0xa0 */
-					/*    Dsp MIP = 0xb0 */
-	unsigned char	portsrc;	/* software source port id
-					 * (refer to portdest)
-					 */
-	unsigned short	sh_str_id;	/* not used */
-	unsigned char	control;	/* not used */
-	unsigned char	rsvd1;
-	unsigned char	seq_num;	/* message sequence number */
-	unsigned char	rsvd2;
-	unsigned short	qos_class;	/* not used */
-	unsigned short	checksum;	/* pseudo header checksum */
-} __packed;
-
-struct drv_msg {
-	struct pseudo_hdr pseudo;
-	u16 type;
-	u16 length;
-	u8  data[0];
-} __packed;
-
-struct media_msg {
-	struct pseudo_hdr pseudo;
-	u16 type;
-	u16 length;
-	u16 state;
-	u32 ip_addr;
-	u32 net_mask;
-	u32 gateway;
-	u32 dns_1;
-	u32 dns_2;
-} __packed;
-
-struct dsp_init_msg {
-	struct pseudo_hdr pseudo;
-	u16 type;
-	u16 length;
-	u8 DspVer[DSPVERSZ];		/* DSP version number */
-	u8 HwSerNum[HWSERNUMSZ];	/* Hardware Serial Number */
-	u8 Sku[SKUSZ];			/* SKU */
-	u8 eui64[EUISZ];		/* EUI64 */
-	u8 ProductMode[MODESZ];		/* Product Mode (Market/Production) */
-	u8 RfCalVer[CALVERSZ];		/* Rf Calibration version */
-	u8 RfCalDate[CALDATESZ];	/* Rf Calibration date */
-} __packed;
-
-struct prov_record {
-	struct list_head list;
-	u8 *pprov_data;
-};
-
-struct ft1000_info {
-	void *priv;
-	struct net_device_stats stats;
-	u16 DrvErrNum;
-	u16 AsicID;
-	int CardReady;
-	int registered;
-	int mediastate;
-	u8 squeseqnum;			/* sequence number on slow queue */
-	spinlock_t dpram_lock;
-	u16 fifo_cnt;
-	u8 DspVer[DSPVERSZ];		/* DSP version number */
-	u8 HwSerNum[HWSERNUMSZ];	/* Hardware Serial Number */
-	u8 Sku[SKUSZ];			/* SKU */
-	u8 eui64[EUISZ];		/* EUI64 */
-	time_t ConTm;			/* Connection Time */
-	u8 ProductMode[MODESZ];
-	u8 RfCalVer[CALVERSZ];
-	u8 RfCalDate[CALDATESZ];
-	u16 DSP_TIME[4];
-	u16 LedStat;
-	u16 ConStat;
-	u16 ProgConStat;
-	struct list_head prov_list;
-	u16 DSPInfoBlklen;
-	int (*ft1000_reset)(void *);
-	u16 DSPInfoBlk[MAX_DSP_SESS_REC];
-	union {
-		u16 Rec[MAX_DSP_SESS_REC];
-		u32 MagRec[MAX_DSP_SESS_REC/2];
-	} DSPSess;
-};
diff --git a/drivers/staging/fwserial/Kconfig b/drivers/staging/fwserial/Kconfig
deleted file mode 100644
index 9c7c9267d52c..000000000000
--- a/drivers/staging/fwserial/Kconfig
+++ /dev/null
@@ -1,31 +0,0 @@
-config FIREWIRE_SERIAL
-       tristate "TTY over Firewire"
-       depends on FIREWIRE && TTY
-       help
-          This enables TTY over IEEE 1394, providing high-speed serial
-	  connectivity to cabled peers. This driver implements a
-	  ad-hoc transport protocol and is currently limited to
-	  Linux-to-Linux communication.
-
-	  To compile this driver as a module, say M here:  the module will
-	  be called firewire-serial.
-
-if FIREWIRE_SERIAL
-
-config FWTTY_MAX_TOTAL_PORTS
-       int "Maximum number of serial ports supported"
-       default "64"
-       help
-          Set this to the maximum number of serial ports you want the
-	  firewire-serial driver to support.
-
-config FWTTY_MAX_CARD_PORTS
-       int "Maximum number of serial ports supported per adapter"
-       range 0 FWTTY_MAX_TOTAL_PORTS
-       default "32"
-       help
-          Set this to the maximum number of serial ports each firewire
-	  adapter supports. The actual number of serial ports registered
-	  is set with the module parameter "ttys".
-
-endif
diff --git a/drivers/staging/fwserial/Makefile b/drivers/staging/fwserial/Makefile
deleted file mode 100644
index 2170869a19b1..000000000000
--- a/drivers/staging/fwserial/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_FIREWIRE_SERIAL) += firewire-serial.o
-firewire-serial-objs := fwserial.o dma_fifo.o
diff --git a/drivers/staging/fwserial/TODO b/drivers/staging/fwserial/TODO
deleted file mode 100644
index 382a7959407c..000000000000
--- a/drivers/staging/fwserial/TODO
+++ /dev/null
@@ -1,14 +0,0 @@
-TODOs prior to this driver moving out of staging
-------------------------------------------------
-1. Implement retries for RCODE_BUSY, RCODE_NO_ACK and RCODE_SEND_ERROR
-   - I/O is handled asynchronously which presents some issues when error
-     conditions occur.
-2. Implement _robust_ console on top of this. The existing prototype console
-   driver is not ready for the big leagues yet.
-3. Expose means of controlling attach/detach of peers via sysfs. Include
-   GUID-to-port matching/whitelist/blacklist.
-
--- Issues with firewire stack --
-1. This driver uses the same unregistered vendor id that the firewire core does
-     (0xd00d1e). Perhaps this could be exposed as a define in
-     firewire.h?
diff --git a/drivers/staging/fwserial/dma_fifo.c b/drivers/staging/fwserial/dma_fifo.c
deleted file mode 100644
index 7a3347c3d02b..000000000000
--- a/drivers/staging/fwserial/dma_fifo.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/*
- * DMA-able FIFO implementation
- *
- * Copyright (C) 2012 Peter Hurley <peter@hurleysoftware.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/bug.h>
-
-#include "dma_fifo.h"
-
-#ifdef DEBUG_TRACING
-#define df_trace(s, args...) pr_debug(s, ##args)
-#else
-#define df_trace(s, args...)
-#endif
-
-#define FAIL(fifo, condition, format...) ({				\
-	fifo->corrupt = !!(condition);					\
-	WARN(fifo->corrupt, format);					\
-})
-
-/*
- * private helper fn to determine if check is in open interval (lo,hi)
- */
-static bool addr_check(unsigned check, unsigned lo, unsigned hi)
-{
-	return check - (lo + 1) < (hi - 1) - lo;
-}
-
-/**
- * dma_fifo_init: initialize the fifo to a valid but inoperative state
- * @fifo: address of in-place "struct dma_fifo" object
- */
-void dma_fifo_init(struct dma_fifo *fifo)
-{
-	memset(fifo, 0, sizeof(*fifo));
-	INIT_LIST_HEAD(&fifo->pending);
-}
-
-/**
- * dma_fifo_alloc - initialize and allocate dma_fifo
- * @fifo: address of in-place "struct dma_fifo" object
- * @size: 'apparent' size, in bytes, of fifo
- * @align: dma alignment to maintain (should be at least cpu cache alignment),
- *         must be power of 2
- * @tx_limit: maximum # of bytes transmissible per dma (rounded down to
- *            multiple of alignment, but at least align size)
- * @open_limit: maximum # of outstanding dma transactions allowed
- * @gfp_mask: get_free_pages mask, passed to kmalloc()
- *
- * The 'apparent' size will be rounded up to next greater aligned size.
- * Returns 0 if no error, otherwise an error code
- */
-int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned align,
-		   int tx_limit, int open_limit, gfp_t gfp_mask)
-{
-	int capacity;
-
-	if (!is_power_of_2(align) || size < 0)
-		return -EINVAL;
-
-	size = round_up(size, align);
-	capacity = size + align * open_limit + align * DMA_FIFO_GUARD;
-	fifo->data = kmalloc(capacity, gfp_mask);
-	if (!fifo->data)
-		return -ENOMEM;
-
-	fifo->in = 0;
-	fifo->out = 0;
-	fifo->done = 0;
-	fifo->size = size;
-	fifo->avail = size;
-	fifo->align = align;
-	fifo->tx_limit = max_t(int, round_down(tx_limit, align), align);
-	fifo->open = 0;
-	fifo->open_limit = open_limit;
-	fifo->guard = size + align * open_limit;
-	fifo->capacity = capacity;
-	fifo->corrupt = 0;
-
-	return 0;
-}
-
-/**
- * dma_fifo_free - frees the fifo
- * @fifo: address of in-place "struct dma_fifo" to free
- *
- * Also reinits the fifo to a valid but inoperative state. This
- * allows the fifo to be reused with a different target requiring
- * different fifo parameters.
- */
-void dma_fifo_free(struct dma_fifo *fifo)
-{
-	struct dma_pending *pending, *next;
-
-	if (fifo->data == NULL)
-		return;
-
-	list_for_each_entry_safe(pending, next, &fifo->pending, link)
-		list_del_init(&pending->link);
-	kfree(fifo->data);
-	fifo->data = NULL;
-}
-
-/**
- * dma_fifo_reset - dumps the fifo contents and reinits for reuse
- * @fifo: address of in-place "struct dma_fifo" to reset
- */
-void dma_fifo_reset(struct dma_fifo *fifo)
-{
-	struct dma_pending *pending, *next;
-
-	if (fifo->data == NULL)
-		return;
-
-	list_for_each_entry_safe(pending, next, &fifo->pending, link)
-		list_del_init(&pending->link);
-	fifo->in = 0;
-	fifo->out = 0;
-	fifo->done = 0;
-	fifo->avail = fifo->size;
-	fifo->open = 0;
-	fifo->corrupt = 0;
-}
-
-/**
- * dma_fifo_in - copies data into the fifo
- * @fifo: address of in-place "struct dma_fifo" to write to
- * @src: buffer to copy from
- * @n: # of bytes to copy
- *
- * Returns the # of bytes actually copied, which can be less than requested if
- * the fifo becomes full. If < 0, return is error code.
- */
-int dma_fifo_in(struct dma_fifo *fifo, const void *src, int n)
-{
-	int ofs, l;
-
-	if (fifo->data == NULL)
-		return -ENOENT;
-	if (fifo->corrupt)
-		return -ENXIO;
-
-	if (n > fifo->avail)
-		n = fifo->avail;
-	if (n <= 0)
-		return 0;
-
-	ofs = fifo->in % fifo->capacity;
-	l = min(n, fifo->capacity - ofs);
-	memcpy(fifo->data + ofs, src, l);
-	memcpy(fifo->data, src + l, n - l);
-
-	if (FAIL(fifo, addr_check(fifo->done, fifo->in, fifo->in + n) ||
-		 fifo->avail < n,
-		 "fifo corrupt: in:%u out:%u done:%u n:%d avail:%d",
-		 fifo->in, fifo->out, fifo->done, n, fifo->avail))
-		return -ENXIO;
-
-	fifo->in += n;
-	fifo->avail -= n;
-
-	df_trace("in:%u out:%u done:%u n:%d avail:%d", fifo->in, fifo->out,
-		 fifo->done, n, fifo->avail);
-
-	return n;
-}
-
-/**
- * dma_fifo_out_pend - gets address/len of next avail read and marks as pended
- * @fifo: address of in-place "struct dma_fifo" to read from
- * @pended: address of structure to fill with read address/len
- *          The data/len fields will be NULL/0 if no dma is pended.
- *
- * Returns the # of used bytes remaining in fifo (ie, if > 0, more data
- * remains in the fifo that was not pended). If < 0, return is error code.
- */
-int dma_fifo_out_pend(struct dma_fifo *fifo, struct dma_pending *pended)
-{
-	unsigned len, n, ofs, l, limit;
-
-	if (fifo->data == NULL)
-		return -ENOENT;
-	if (fifo->corrupt)
-		return -ENXIO;
-
-	pended->len = 0;
-	pended->data = NULL;
-	pended->out = fifo->out;
-
-	len = fifo->in - fifo->out;
-	if (!len)
-		return -ENODATA;
-	if (fifo->open == fifo->open_limit)
-		return -EAGAIN;
-
-	n = len;
-	ofs = fifo->out % fifo->capacity;
-	l = fifo->capacity - ofs;
-	limit = min_t(unsigned, l, fifo->tx_limit);
-	if (n > limit) {
-		n = limit;
-		fifo->out += limit;
-	} else if (ofs + n > fifo->guard) {
-		fifo->out += l;
-		fifo->in = fifo->out;
-	} else {
-		fifo->out += round_up(n, fifo->align);
-		fifo->in = fifo->out;
-	}
-
-	df_trace("in: %u out: %u done: %u n: %d len: %u avail: %d", fifo->in,
-		 fifo->out, fifo->done, n, len, fifo->avail);
-
-	pended->len = n;
-	pended->data = fifo->data + ofs;
-	pended->next = fifo->out;
-	list_add_tail(&pended->link, &fifo->pending);
-	++fifo->open;
-
-	if (FAIL(fifo, fifo->open > fifo->open_limit,
-		 "past open limit:%d (limit:%d)",
-		 fifo->open, fifo->open_limit))
-		return -ENXIO;
-	if (FAIL(fifo, fifo->out & (fifo->align - 1),
-		 "fifo out unaligned:%u (align:%u)",
-		 fifo->out, fifo->align))
-		return -ENXIO;
-
-	return len - n;
-}
-
-/**
- * dma_fifo_out_complete - marks pended dma as completed
- * @fifo: address of in-place "struct dma_fifo" which was read from
- * @complete: address of structure for previously pended dma to mark completed
- */
-int dma_fifo_out_complete(struct dma_fifo *fifo, struct dma_pending *complete)
-{
-	struct dma_pending *pending, *next, *tmp;
-
-	if (fifo->data == NULL)
-		return -ENOENT;
-	if (fifo->corrupt)
-		return -ENXIO;
-	if (list_empty(&fifo->pending) && fifo->open == 0)
-		return -EINVAL;
-
-	if (FAIL(fifo, list_empty(&fifo->pending) != (fifo->open == 0),
-		 "pending list disagrees with open count:%d",
-		 fifo->open))
-		return -ENXIO;
-
-	tmp = complete->data;
-	*tmp = *complete;
-	list_replace(&complete->link, &tmp->link);
-	dp_mark_completed(tmp);
-
-	/* Only update the fifo in the original pended order */
-	list_for_each_entry_safe(pending, next, &fifo->pending, link) {
-		if (!dp_is_completed(pending)) {
-			df_trace("still pending: saved out: %u len: %d",
-				 pending->out, pending->len);
-			break;
-		}
-
-		if (FAIL(fifo, pending->out != fifo->done ||
-			 addr_check(fifo->in, fifo->done, pending->next),
-			 "in:%u out:%u done:%u saved:%u next:%u",
-			 fifo->in, fifo->out, fifo->done, pending->out,
-			 pending->next))
-			return -ENXIO;
-
-		list_del_init(&pending->link);
-		fifo->done = pending->next;
-		fifo->avail += pending->len;
-		--fifo->open;
-
-		df_trace("in: %u out: %u done: %u len: %u avail: %d", fifo->in,
-			 fifo->out, fifo->done, pending->len, fifo->avail);
-	}
-
-	if (FAIL(fifo, fifo->open < 0, "open dma:%d < 0", fifo->open))
-		return -ENXIO;
-	if (FAIL(fifo, fifo->avail > fifo->size, "fifo avail:%d > size:%d",
-		 fifo->avail, fifo->size))
-		return -ENXIO;
-
-	return 0;
-}
diff --git a/drivers/staging/fwserial/dma_fifo.h b/drivers/staging/fwserial/dma_fifo.h
deleted file mode 100644
index 410988224f89..000000000000
--- a/drivers/staging/fwserial/dma_fifo.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * DMA-able FIFO interface
- *
- * Copyright (C) 2012 Peter Hurley <peter@hurleysoftware.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef _DMA_FIFO_H_
-#define _DMA_FIFO_H_
-
-/**
- * The design basis for the DMA FIFO is to provide an output side that
- * complies with the streaming DMA API design that can be DMA'd from directly
- * (without additional copying), coupled with an input side that maintains a
- * logically consistent 'apparent' size (ie, bytes in + bytes avail is static
- * for the lifetime of the FIFO).
- *
- * DMA output transactions originate on a cache line boundary and can be
- * variably-sized. DMA output transactions can be retired out-of-order but
- * the FIFO will only advance the output in the original input sequence.
- * This means the FIFO will eventually stall if a transaction is never retired.
- *
- * Chunking the output side into cache line multiples means that some FIFO
- * memory is unused. For example, if all the avail input has been pended out,
- * then the in and out markers are re-aligned to the next cache line.
- * The maximum possible waste is
- *     (cache line alignment - 1) * (max outstanding dma transactions)
- * This potential waste requires additional hidden capacity within the FIFO
- * to be able to accept input while the 'apparent' size has not been reached.
- *
- * Additional cache lines (ie, guard area) are used to minimize DMA
- * fragmentation when wrapping at the end of the FIFO. Input is allowed into the
- * guard area, but the in and out FIFO markers are wrapped when DMA is pended.
- */
-
-#define DMA_FIFO_GUARD 3   /* # of cache lines to reserve for the guard area */
-
-struct dma_fifo {
-	unsigned	 in;
-	unsigned	 out;		/* updated when dma is pended         */
-	unsigned	 done;		/* updated upon dma completion        */
-	struct {
-		unsigned corrupt:1;
-	};
-	int		 size;		/* 'apparent' size of fifo	      */
-	int		 guard;		/* ofs of guard area		      */
-	int		 capacity;	/* size + reserved                    */
-	int		 avail;		/* # of unused bytes in fifo          */
-	unsigned	 align;		/* must be power of 2                 */
-	int		 tx_limit;	/* max # of bytes per dma transaction */
-	int		 open_limit;	/* max # of outstanding allowed       */
-	int		 open;		/* # of outstanding dma transactions  */
-	struct list_head pending;	/* fifo markers for outstanding dma   */
-	void		 *data;
-};
-
-struct dma_pending {
-	struct list_head link;
-	void		 *data;
-	unsigned	 len;
-	unsigned         next;
-	unsigned         out;
-};
-
-static inline void dp_mark_completed(struct dma_pending *dp)
-{
-	dp->data += 1;
-}
-
-static inline bool dp_is_completed(struct dma_pending *dp)
-{
-	return (unsigned long)dp->data & 1UL;
-}
-
-void dma_fifo_init(struct dma_fifo *fifo);
-int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned align,
-		   int tx_limit, int open_limit, gfp_t gfp_mask);
-void dma_fifo_free(struct dma_fifo *fifo);
-void dma_fifo_reset(struct dma_fifo *fifo);
-int dma_fifo_in(struct dma_fifo *fifo, const void *src, int n);
-int dma_fifo_out_pend(struct dma_fifo *fifo, struct dma_pending *pended);
-int dma_fifo_out_complete(struct dma_fifo *fifo,
-			  struct dma_pending *complete);
-
-/* returns the # of used bytes in the fifo */
-static inline int dma_fifo_level(struct dma_fifo *fifo)
-{
-	return fifo->size - fifo->avail;
-}
-
-/* returns the # of bytes ready for output in the fifo */
-static inline int dma_fifo_out_level(struct dma_fifo *fifo)
-{
-	return fifo->in - fifo->out;
-}
-
-/* returns the # of unused bytes in the fifo */
-static inline int dma_fifo_avail(struct dma_fifo *fifo)
-{
-	return fifo->avail;
-}
-
-/* returns true if fifo has max # of outstanding dmas */
-static inline bool dma_fifo_busy(struct dma_fifo *fifo)
-{
-	return fifo->open == fifo->open_limit;
-}
-
-/* changes the max size of dma returned from dma_fifo_out_pend() */
-static inline int dma_fifo_change_tx_limit(struct dma_fifo *fifo, int tx_limit)
-{
-	tx_limit = round_down(tx_limit, fifo->align);
-	fifo->tx_limit = max_t(int, tx_limit, fifo->align);
-	return 0;
-}
-
-#endif /* _DMA_FIFO_H_ */
diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
deleted file mode 100644
index b3ea4bb54e2c..000000000000
--- a/drivers/staging/fwserial/fwserial.c
+++ /dev/null
@@ -1,2957 +0,0 @@
-/*
- * FireWire Serial driver
- *
- * Copyright (C) 2012 Peter Hurley <peter@hurleysoftware.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/mod_devicetable.h>
-#include <linux/rculist.h>
-#include <linux/workqueue.h>
-#include <linux/ratelimit.h>
-#include <linux/bug.h>
-#include <linux/uaccess.h>
-
-#include "fwserial.h"
-
-#define be32_to_u64(hi, lo)  ((u64)be32_to_cpu(hi) << 32 | be32_to_cpu(lo))
-
-#define LINUX_VENDOR_ID   0xd00d1eU  /* same id used in card root directory   */
-#define FWSERIAL_VERSION  0x00e81cU  /* must be unique within LINUX_VENDOR_ID */
-
-/* configurable options */
-static int num_ttys = 4;	    /* # of std ttys to create per fw_card    */
-				    /* - doubles as loopback port index       */
-static bool auto_connect = true;    /* try to VIRT_CABLE to every peer        */
-static bool create_loop_dev = true; /* create a loopback device for each card */
-
-module_param_named(ttys, num_ttys, int, S_IRUGO | S_IWUSR);
-module_param_named(auto, auto_connect, bool, S_IRUGO | S_IWUSR);
-module_param_named(loop, create_loop_dev, bool, S_IRUGO | S_IWUSR);
-
-/*
- * Threshold below which the tty is woken for writing
- * - should be equal to WAKEUP_CHARS in drivers/tty/n_tty.c because
- *   even if the writer is woken, n_tty_poll() won't set POLLOUT until
- *   our fifo is below this level
- */
-#define WAKEUP_CHARS             256
-
-/**
- * fwserial_list: list of every fw_serial created for each fw_card
- * See discussion in fwserial_probe.
- */
-static LIST_HEAD(fwserial_list);
-static DEFINE_MUTEX(fwserial_list_mutex);
-
-/**
- * port_table: array of tty ports allocated to each fw_card
- *
- * tty ports are allocated during probe when an fw_serial is first
- * created for a given fw_card. Ports are allocated in a contiguous block,
- * each block consisting of 'num_ports' ports.
- */
-static struct fwtty_port *port_table[MAX_TOTAL_PORTS];
-static DEFINE_MUTEX(port_table_lock);
-static bool port_table_corrupt;
-#define FWTTY_INVALID_INDEX  MAX_TOTAL_PORTS
-
-#define loop_idx(port)	(((port)->index) / num_ports)
-#define table_idx(loop)	((loop) * num_ports + num_ttys)
-
-/* total # of tty ports created per fw_card */
-static int num_ports;
-
-/* slab used as pool for struct fwtty_transactions */
-static struct kmem_cache *fwtty_txn_cache;
-
-struct tty_driver *fwtty_driver;
-static struct tty_driver *fwloop_driver;
-
-static struct dentry *fwserial_debugfs;
-
-struct fwtty_transaction;
-typedef void (*fwtty_transaction_cb)(struct fw_card *card, int rcode,
-				     void *data, size_t length,
-				     struct fwtty_transaction *txn);
-
-struct fwtty_transaction {
-	struct fw_transaction      fw_txn;
-	fwtty_transaction_cb       callback;
-	struct fwtty_port	   *port;
-	union {
-		struct dma_pending dma_pended;
-	};
-};
-
-#define to_device(a, b)			(a->b)
-#define fwtty_err(p, fmt, ...)						\
-	dev_err(to_device(p, device), fmt, ##__VA_ARGS__)
-#define fwtty_info(p, fmt, ...)						\
-	dev_info(to_device(p, device), fmt, ##__VA_ARGS__)
-#define fwtty_notice(p, fmt, ...)					\
-	dev_notice(to_device(p, device), fmt, ##__VA_ARGS__)
-#define fwtty_dbg(p, fmt, ...)						\
-	dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
-#define fwtty_err_ratelimited(p, fmt, ...)				\
-	dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
-
-#ifdef DEBUG
-static inline void debug_short_write(struct fwtty_port *port, int c, int n)
-{
-	int avail;
-
-	if (n < c) {
-		spin_lock_bh(&port->lock);
-		avail = dma_fifo_avail(&port->tx_fifo);
-		spin_unlock_bh(&port->lock);
-		fwtty_dbg(port, "short write: avail:%d req:%d wrote:%d\n",
-			  avail, c, n);
-	}
-}
-#else
-#define debug_short_write(port, c, n)
-#endif
-
-static struct fwtty_peer *__fwserial_peer_by_node_id(struct fw_card *card,
-						     int generation, int id);
-
-#ifdef FWTTY_PROFILING
-
-static void fwtty_profile_fifo(struct fwtty_port *port, unsigned *stat)
-{
-	spin_lock_bh(&port->lock);
-	fwtty_profile_data(stat, dma_fifo_avail(&port->tx_fifo));
-	spin_unlock_bh(&port->lock);
-}
-
-static void fwtty_dump_profile(struct seq_file *m, struct stats *stats)
-{
-	/* for each stat, print sum of 0 to 2^k, then individually */
-	int k = 4;
-	unsigned sum;
-	int j;
-	char t[10];
-
-	snprintf(t, 10, "< %d", 1 << k);
-	seq_printf(m, "\n%14s  %6s", " ", t);
-	for (j = k + 1; j < DISTRIBUTION_MAX_INDEX; ++j)
-		seq_printf(m, "%6d", 1 << j);
-
-	++k;
-	for (j = 0, sum = 0; j <= k; ++j)
-		sum += stats->reads[j];
-	seq_printf(m, "\n%14s: %6d", "reads", sum);
-	for (j = k + 1; j <= DISTRIBUTION_MAX_INDEX; ++j)
-		seq_printf(m, "%6d", stats->reads[j]);
-
-	for (j = 0, sum = 0; j <= k; ++j)
-		sum += stats->writes[j];
-	seq_printf(m, "\n%14s: %6d", "writes", sum);
-	for (j = k + 1; j <= DISTRIBUTION_MAX_INDEX; ++j)
-		seq_printf(m, "%6d", stats->writes[j]);
-
-	for (j = 0, sum = 0; j <= k; ++j)
-		sum += stats->txns[j];
-	seq_printf(m, "\n%14s: %6d", "txns", sum);
-	for (j = k + 1; j <= DISTRIBUTION_MAX_INDEX; ++j)
-		seq_printf(m, "%6d", stats->txns[j]);
-
-	for (j = 0, sum = 0; j <= k; ++j)
-		sum += stats->unthrottle[j];
-	seq_printf(m, "\n%14s: %6d", "avail @ unthr", sum);
-	for (j = k + 1; j <= DISTRIBUTION_MAX_INDEX; ++j)
-		seq_printf(m, "%6d", stats->unthrottle[j]);
-}
-
-#else
-#define fwtty_profile_fifo(port, stat)
-#define fwtty_dump_profile(m, stats)
-#endif
-
-/*
- * Returns the max receive packet size for the given node
- * Devices which are OHCI v1.0/ v1.1/ v1.2-draft or RFC 2734 compliant
- * are required by specification to support max_rec of 8 (512 bytes) or more.
- */
-static inline int device_max_receive(struct fw_device *fw_device)
-{
-	/* see IEEE 1394-2008 table 8-8 */
-	return min(2 << fw_device->max_rec, 4096);
-}
-
-static void fwtty_log_tx_error(struct fwtty_port *port, int rcode)
-{
-	switch (rcode) {
-	case RCODE_SEND_ERROR:
-		fwtty_err_ratelimited(port, "card busy\n");
-		break;
-	case RCODE_ADDRESS_ERROR:
-		fwtty_err_ratelimited(port, "bad unit addr or write length\n");
-		break;
-	case RCODE_DATA_ERROR:
-		fwtty_err_ratelimited(port, "failed rx\n");
-		break;
-	case RCODE_NO_ACK:
-		fwtty_err_ratelimited(port, "missing ack\n");
-		break;
-	case RCODE_BUSY:
-		fwtty_err_ratelimited(port, "remote busy\n");
-		break;
-	default:
-		fwtty_err_ratelimited(port, "failed tx: %d\n", rcode);
-	}
-}
-
-static void fwtty_txn_constructor(void *this)
-{
-	struct fwtty_transaction *txn = this;
-
-	init_timer(&txn->fw_txn.split_timeout_timer);
-}
-
-static void fwtty_common_callback(struct fw_card *card, int rcode,
-				  void *payload, size_t len, void *cb_data)
-{
-	struct fwtty_transaction *txn = cb_data;
-	struct fwtty_port *port = txn->port;
-
-	if (port && rcode != RCODE_COMPLETE)
-		fwtty_log_tx_error(port, rcode);
-	if (txn->callback)
-		txn->callback(card, rcode, payload, len, txn);
-	kmem_cache_free(fwtty_txn_cache, txn);
-}
-
-static int fwtty_send_data_async(struct fwtty_peer *peer, int tcode,
-				 unsigned long long addr, void *payload,
-				 size_t len, fwtty_transaction_cb callback,
-				 struct fwtty_port *port)
-{
-	struct fwtty_transaction *txn;
-	int generation;
-
-	txn = kmem_cache_alloc(fwtty_txn_cache, GFP_ATOMIC);
-	if (!txn)
-		return -ENOMEM;
-
-	txn->callback = callback;
-	txn->port = port;
-
-	generation = peer->generation;
-	smp_rmb();
-	fw_send_request(peer->serial->card, &txn->fw_txn, tcode,
-			peer->node_id, generation, peer->speed, addr, payload,
-			len, fwtty_common_callback, txn);
-	return 0;
-}
-
-static void fwtty_send_txn_async(struct fwtty_peer *peer,
-				 struct fwtty_transaction *txn, int tcode,
-				 unsigned long long addr, void *payload,
-				 size_t len, fwtty_transaction_cb callback,
-				 struct fwtty_port *port)
-{
-	int generation;
-
-	txn->callback = callback;
-	txn->port = port;
-
-	generation = peer->generation;
-	smp_rmb();
-	fw_send_request(peer->serial->card, &txn->fw_txn, tcode,
-			peer->node_id, generation, peer->speed, addr, payload,
-			len, fwtty_common_callback, txn);
-}
-
-static void __fwtty_restart_tx(struct fwtty_port *port)
-{
-	int len, avail;
-
-	len = dma_fifo_out_level(&port->tx_fifo);
-	if (len)
-		schedule_delayed_work(&port->drain, 0);
-	avail = dma_fifo_avail(&port->tx_fifo);
-
-	fwtty_dbg(port, "fifo len: %d avail: %d\n", len, avail);
-}
-
-static void fwtty_restart_tx(struct fwtty_port *port)
-{
-	spin_lock_bh(&port->lock);
-	__fwtty_restart_tx(port);
-	spin_unlock_bh(&port->lock);
-}
-
-/**
- * fwtty_update_port_status - decodes & dispatches line status changes
- *
- * Note: in loopback, the port->lock is being held. Only use functions that
- * don't attempt to reclaim the port->lock.
- */
-static void fwtty_update_port_status(struct fwtty_port *port, unsigned status)
-{
-	unsigned delta;
-	struct tty_struct *tty;
-
-	/* simulated LSR/MSR status from remote */
-	status &= ~MCTRL_MASK;
-	delta = (port->mstatus ^ status) & ~MCTRL_MASK;
-	delta &= ~(status & TIOCM_RNG);
-	port->mstatus = status;
-
-	if (delta & TIOCM_RNG)
-		++port->icount.rng;
-	if (delta & TIOCM_DSR)
-		++port->icount.dsr;
-	if (delta & TIOCM_CAR)
-		++port->icount.dcd;
-	if (delta & TIOCM_CTS)
-		++port->icount.cts;
-
-	fwtty_dbg(port, "status: %x delta: %x\n", status, delta);
-
-	if (delta & TIOCM_CAR) {
-		tty = tty_port_tty_get(&port->port);
-		if (tty && !C_CLOCAL(tty)) {
-			if (status & TIOCM_CAR)
-				wake_up_interruptible(&port->port.open_wait);
-			else
-				schedule_work(&port->hangup);
-		}
-		tty_kref_put(tty);
-	}
-
-	if (delta & TIOCM_CTS) {
-		tty = tty_port_tty_get(&port->port);
-		if (tty && C_CRTSCTS(tty)) {
-			if (tty->hw_stopped) {
-				if (status & TIOCM_CTS) {
-					tty->hw_stopped = 0;
-					if (port->loopback)
-						__fwtty_restart_tx(port);
-					else
-						fwtty_restart_tx(port);
-				}
-			} else {
-				if (~status & TIOCM_CTS)
-					tty->hw_stopped = 1;
-			}
-		}
-		tty_kref_put(tty);
-
-	} else if (delta & OOB_TX_THROTTLE) {
-		tty = tty_port_tty_get(&port->port);
-		if (tty) {
-			if (tty->hw_stopped) {
-				if (~status & OOB_TX_THROTTLE) {
-					tty->hw_stopped = 0;
-					if (port->loopback)
-						__fwtty_restart_tx(port);
-					else
-						fwtty_restart_tx(port);
-				}
-			} else {
-				if (status & OOB_TX_THROTTLE)
-					tty->hw_stopped = 1;
-			}
-		}
-		tty_kref_put(tty);
-	}
-
-	if (delta & (UART_LSR_BI << 24)) {
-		if (status & (UART_LSR_BI << 24)) {
-			port->break_last = jiffies;
-			schedule_delayed_work(&port->emit_breaks, 0);
-		} else {
-			/* run emit_breaks one last time (if pending) */
-			mod_delayed_work(system_wq, &port->emit_breaks, 0);
-		}
-	}
-
-	if (delta & (TIOCM_DSR | TIOCM_CAR | TIOCM_CTS | TIOCM_RNG))
-		wake_up_interruptible(&port->port.delta_msr_wait);
-}
-
-/**
- * __fwtty_port_line_status - generate 'line status' for indicated port
- *
- * This function returns a remote 'MSR' state based on the local 'MCR' state,
- * as if a null modem cable was attached. The actual status is a mangling
- * of TIOCM_* bits suitable for sending to a peer's status_addr.
- *
- * Note: caller must be holding port lock
- */
-static unsigned __fwtty_port_line_status(struct fwtty_port *port)
-{
-	unsigned status = 0;
-
-	/* TODO: add module param to tie RNG to DTR as well */
-
-	if (port->mctrl & TIOCM_DTR)
-		status |= TIOCM_DSR | TIOCM_CAR;
-	if (port->mctrl & TIOCM_RTS)
-		status |= TIOCM_CTS;
-	if (port->mctrl & OOB_RX_THROTTLE)
-		status |= OOB_TX_THROTTLE;
-	/* emulate BRK as add'l line status */
-	if (port->break_ctl)
-		status |= UART_LSR_BI << 24;
-
-	return status;
-}
-
-/**
- * __fwtty_write_port_status - send the port line status to peer
- *
- * Note: caller must be holding the port lock.
- */
-static int __fwtty_write_port_status(struct fwtty_port *port)
-{
-	struct fwtty_peer *peer;
-	int err = -ENOENT;
-	unsigned status = __fwtty_port_line_status(port);
-
-	rcu_read_lock();
-	peer = rcu_dereference(port->peer);
-	if (peer) {
-		err = fwtty_send_data_async(peer, TCODE_WRITE_QUADLET_REQUEST,
-					    peer->status_addr, &status,
-					    sizeof(status), NULL, port);
-	}
-	rcu_read_unlock();
-
-	return err;
-}
-
-/**
- * fwtty_write_port_status - same as above but locked by port lock
- */
-static int fwtty_write_port_status(struct fwtty_port *port)
-{
-	int err;
-
-	spin_lock_bh(&port->lock);
-	err = __fwtty_write_port_status(port);
-	spin_unlock_bh(&port->lock);
-	return err;
-}
-
-static void fwtty_throttle_port(struct fwtty_port *port)
-{
-	struct tty_struct *tty;
-	unsigned old;
-
-	tty = tty_port_tty_get(&port->port);
-	if (!tty)
-		return;
-
-	spin_lock_bh(&port->lock);
-
-	old = port->mctrl;
-	port->mctrl |= OOB_RX_THROTTLE;
-	if (C_CRTSCTS(tty))
-		port->mctrl &= ~TIOCM_RTS;
-	if (~old & OOB_RX_THROTTLE)
-		__fwtty_write_port_status(port);
-
-	spin_unlock_bh(&port->lock);
-
-	tty_kref_put(tty);
-}
-
-/**
- * fwtty_do_hangup - wait for ldisc to deliver all pending rx; only then hangup
- *
- * When the remote has finished tx, and all in-flight rx has been received and
- * and pushed to the flip buffer, the remote may close its device. This will
- * drop DTR on the remote which will drop carrier here. Typically, the tty is
- * hung up when carrier is dropped or lost.
- *
- * However, there is a race between the hang up and the line discipline
- * delivering its data to the reader. A hangup will cause the ldisc to flush
- * (ie., clear) the read buffer and flip buffer. Because of firewire's
- * relatively high throughput, the ldisc frequently lags well behind the driver,
- * resulting in lost data (which has already been received and written to
- * the flip buffer) when the remote closes its end.
- *
- * Unfortunately, since the flip buffer offers no direct method for determining
- * if it holds data, ensuring the ldisc has delivered all data is problematic.
- */
-
-/* FIXME: drop this workaround when __tty_hangup waits for ldisc completion */
-static void fwtty_do_hangup(struct work_struct *work)
-{
-	struct fwtty_port *port = to_port(work, hangup);
-	struct tty_struct *tty;
-
-	schedule_timeout_uninterruptible(msecs_to_jiffies(50));
-
-	tty = tty_port_tty_get(&port->port);
-	if (tty)
-		tty_vhangup(tty);
-	tty_kref_put(tty);
-}
-
-static void fwtty_emit_breaks(struct work_struct *work)
-{
-	struct fwtty_port *port = to_port(to_delayed_work(work), emit_breaks);
-	static const char buf[16];
-	unsigned long now = jiffies;
-	unsigned long elapsed = now - port->break_last;
-	int n, t, c, brk = 0;
-
-	/* generate breaks at the line rate (but at least 1) */
-	n = (elapsed * port->cps) / HZ + 1;
-	port->break_last = now;
-
-	fwtty_dbg(port, "sending %d brks\n", n);
-
-	while (n) {
-		t = min(n, 16);
-		c = tty_insert_flip_string_fixed_flag(&port->port, buf,
-						      TTY_BREAK, t);
-		n -= c;
-		brk += c;
-		if (c < t)
-			break;
-	}
-	tty_flip_buffer_push(&port->port);
-
-	if (port->mstatus & (UART_LSR_BI << 24))
-		schedule_delayed_work(&port->emit_breaks, FREQ_BREAKS);
-	port->icount.brk += brk;
-}
-
-static int fwtty_rx(struct fwtty_port *port, unsigned char *data, size_t len)
-{
-	int c, n = len;
-	unsigned lsr;
-	int err = 0;
-
-	fwtty_dbg(port, "%d\n", n);
-	fwtty_profile_data(port->stats.reads, n);
-
-	if (port->write_only) {
-		n = 0;
-		goto out;
-	}
-
-	/* disregard break status; breaks are generated by emit_breaks work */
-	lsr = (port->mstatus >> 24) & ~UART_LSR_BI;
-
-	if (port->overrun)
-		lsr |= UART_LSR_OE;
-
-	if (lsr & UART_LSR_OE)
-		++port->icount.overrun;
-
-	lsr &= port->status_mask;
-	if (lsr & ~port->ignore_mask & UART_LSR_OE) {
-		if (!tty_insert_flip_char(&port->port, 0, TTY_OVERRUN)) {
-			err = -EIO;
-			goto out;
-		}
-	}
-	port->overrun = false;
-
-	if (lsr & port->ignore_mask & ~UART_LSR_OE) {
-		/* TODO: don't drop SAK and Magic SysRq here */
-		n = 0;
-		goto out;
-	}
-
-	c = tty_insert_flip_string_fixed_flag(&port->port, data, TTY_NORMAL, n);
-	if (c > 0)
-		tty_flip_buffer_push(&port->port);
-	n -= c;
-
-	if (n) {
-		port->overrun = true;
-		err = -EIO;
-		fwtty_err_ratelimited(port, "flip buffer overrun\n");
-
-	} else {
-		/* throttle the sender if remaining flip buffer space has
-		 * reached high watermark to avoid losing data which may be
-		 * in-flight. Since the AR request context is 32k, that much
-		 * data may have _already_ been acked.
-		 */
-		if (tty_buffer_space_avail(&port->port) < HIGH_WATERMARK)
-			fwtty_throttle_port(port);
-	}
-
-out:
-	port->icount.rx += len;
-	port->stats.lost += n;
-	return err;
-}
-
-/**
- * fwtty_port_handler - bus address handler for port reads/writes
- * @parameters: fw_address_callback_t as specified by firewire core interface
- *
- * This handler is responsible for handling inbound read/write dma from remotes.
- */
-static void fwtty_port_handler(struct fw_card *card,
-			       struct fw_request *request,
-			       int tcode, int destination, int source,
-			       int generation,
-			       unsigned long long addr,
-			       void *data, size_t len,
-			       void *callback_data)
-{
-	struct fwtty_port *port = callback_data;
-	struct fwtty_peer *peer;
-	int err;
-	int rcode;
-
-	/* Only accept rx from the peer virtual-cabled to this port */
-	rcu_read_lock();
-	peer = __fwserial_peer_by_node_id(card, generation, source);
-	rcu_read_unlock();
-	if (!peer || peer != rcu_access_pointer(port->peer)) {
-		rcode = RCODE_ADDRESS_ERROR;
-		fwtty_err_ratelimited(port, "ignoring unauthenticated data\n");
-		goto respond;
-	}
-
-	switch (tcode) {
-	case TCODE_WRITE_QUADLET_REQUEST:
-		if (addr != port->rx_handler.offset || len != 4) {
-			rcode = RCODE_ADDRESS_ERROR;
-		} else {
-			fwtty_update_port_status(port, *(unsigned *)data);
-			rcode = RCODE_COMPLETE;
-		}
-		break;
-
-	case TCODE_WRITE_BLOCK_REQUEST:
-		if (addr != port->rx_handler.offset + 4 ||
-		    len > port->rx_handler.length - 4) {
-			rcode = RCODE_ADDRESS_ERROR;
-		} else {
-			err = fwtty_rx(port, data, len);
-			switch (err) {
-			case 0:
-				rcode = RCODE_COMPLETE;
-				break;
-			case -EIO:
-				rcode = RCODE_DATA_ERROR;
-				break;
-			default:
-				rcode = RCODE_CONFLICT_ERROR;
-				break;
-			}
-		}
-		break;
-
-	default:
-		rcode = RCODE_TYPE_ERROR;
-	}
-
-respond:
-	fw_send_response(card, request, rcode);
-}
-
-/**
- * fwtty_tx_complete - callback for tx dma
- * @data: ignored, has no meaning for write txns
- * @length: ignored, has no meaning for write txns
- *
- * The writer must be woken here if the fifo has been emptied because it
- * may have slept if chars_in_buffer was != 0
- */
-static void fwtty_tx_complete(struct fw_card *card, int rcode,
-			      void *data, size_t length,
-			      struct fwtty_transaction *txn)
-{
-	struct fwtty_port *port = txn->port;
-	int len;
-
-	fwtty_dbg(port, "rcode: %d\n", rcode);
-
-	switch (rcode) {
-	case RCODE_COMPLETE:
-		spin_lock_bh(&port->lock);
-		dma_fifo_out_complete(&port->tx_fifo, &txn->dma_pended);
-		len = dma_fifo_level(&port->tx_fifo);
-		spin_unlock_bh(&port->lock);
-
-		port->icount.tx += txn->dma_pended.len;
-		break;
-
-	default:
-		/* TODO: implement retries */
-		spin_lock_bh(&port->lock);
-		dma_fifo_out_complete(&port->tx_fifo, &txn->dma_pended);
-		len = dma_fifo_level(&port->tx_fifo);
-		spin_unlock_bh(&port->lock);
-
-		port->stats.dropped += txn->dma_pended.len;
-	}
-
-	if (len < WAKEUP_CHARS)
-		tty_port_tty_wakeup(&port->port);
-}
-
-static int fwtty_tx(struct fwtty_port *port, bool drain)
-{
-	struct fwtty_peer *peer;
-	struct fwtty_transaction *txn;
-	struct tty_struct *tty;
-	int n, len;
-
-	tty = tty_port_tty_get(&port->port);
-	if (!tty)
-		return -ENOENT;
-
-	rcu_read_lock();
-	peer = rcu_dereference(port->peer);
-	if (!peer) {
-		n = -EIO;
-		goto out;
-	}
-
-	if (test_and_set_bit(IN_TX, &port->flags)) {
-		n = -EALREADY;
-		goto out;
-	}
-
-	/* try to write as many dma transactions out as possible */
-	n = -EAGAIN;
-	while (!tty->stopped && !tty->hw_stopped &&
-	       !test_bit(STOP_TX, &port->flags)) {
-		txn = kmem_cache_alloc(fwtty_txn_cache, GFP_ATOMIC);
-		if (!txn) {
-			n = -ENOMEM;
-			break;
-		}
-
-		spin_lock_bh(&port->lock);
-		n = dma_fifo_out_pend(&port->tx_fifo, &txn->dma_pended);
-		spin_unlock_bh(&port->lock);
-
-		fwtty_dbg(port, "out: %u rem: %d\n", txn->dma_pended.len, n);
-
-		if (n < 0) {
-			kmem_cache_free(fwtty_txn_cache, txn);
-			if (n == -EAGAIN) {
-				++port->stats.tx_stall;
-			} else if (n == -ENODATA) {
-				fwtty_profile_data(port->stats.txns, 0);
-			} else {
-				++port->stats.fifo_errs;
-				fwtty_err_ratelimited(port, "fifo err: %d\n",
-						      n);
-			}
-			break;
-		}
-
-		fwtty_profile_data(port->stats.txns, txn->dma_pended.len);
-
-		fwtty_send_txn_async(peer, txn, TCODE_WRITE_BLOCK_REQUEST,
-				     peer->fifo_addr, txn->dma_pended.data,
-				     txn->dma_pended.len, fwtty_tx_complete,
-				     port);
-		++port->stats.sent;
-
-		/*
-		 * Stop tx if the 'last view' of the fifo is empty or if
-		 * this is the writer and there's not enough data to bother
-		 */
-		if (n == 0 || (!drain && n < WRITER_MINIMUM))
-			break;
-	}
-
-	if (n >= 0 || n == -EAGAIN || n == -ENOMEM || n == -ENODATA) {
-		spin_lock_bh(&port->lock);
-		len = dma_fifo_out_level(&port->tx_fifo);
-		if (len) {
-			unsigned long delay = (n == -ENOMEM) ? HZ : 1;
-
-			schedule_delayed_work(&port->drain, delay);
-		}
-		len = dma_fifo_level(&port->tx_fifo);
-		spin_unlock_bh(&port->lock);
-
-		/* wakeup the writer */
-		if (drain && len < WAKEUP_CHARS)
-			tty_wakeup(tty);
-	}
-
-	clear_bit(IN_TX, &port->flags);
-	wake_up_interruptible(&port->wait_tx);
-
-out:
-	rcu_read_unlock();
-	tty_kref_put(tty);
-	return n;
-}
-
-static void fwtty_drain_tx(struct work_struct *work)
-{
-	struct fwtty_port *port = to_port(to_delayed_work(work), drain);
-
-	fwtty_tx(port, true);
-}
-
-static void fwtty_write_xchar(struct fwtty_port *port, char ch)
-{
-	struct fwtty_peer *peer;
-
-	++port->stats.xchars;
-
-	fwtty_dbg(port, "%02x\n", ch);
-
-	rcu_read_lock();
-	peer = rcu_dereference(port->peer);
-	if (peer) {
-		fwtty_send_data_async(peer, TCODE_WRITE_BLOCK_REQUEST,
-				      peer->fifo_addr, &ch, sizeof(ch),
-				      NULL, port);
-	}
-	rcu_read_unlock();
-}
-
-struct fwtty_port *fwtty_port_get(unsigned index)
-{
-	struct fwtty_port *port;
-
-	if (index >= MAX_TOTAL_PORTS)
-		return NULL;
-
-	mutex_lock(&port_table_lock);
-	port = port_table[index];
-	if (port)
-		kref_get(&port->serial->kref);
-	mutex_unlock(&port_table_lock);
-	return port;
-}
-EXPORT_SYMBOL(fwtty_port_get);
-
-static int fwtty_ports_add(struct fw_serial *serial)
-{
-	int err = -EBUSY;
-	int i, j;
-
-	if (port_table_corrupt)
-		return err;
-
-	mutex_lock(&port_table_lock);
-	for (i = 0; i + num_ports <= MAX_TOTAL_PORTS; i += num_ports) {
-		if (!port_table[i]) {
-			for (j = 0; j < num_ports; ++i, ++j) {
-				serial->ports[j]->index = i;
-				port_table[i] = serial->ports[j];
-			}
-			err = 0;
-			break;
-		}
-	}
-	mutex_unlock(&port_table_lock);
-	return err;
-}
-
-static void fwserial_destroy(struct kref *kref)
-{
-	struct fw_serial *serial = to_serial(kref, kref);
-	struct fwtty_port **ports = serial->ports;
-	int j, i = ports[0]->index;
-
-	synchronize_rcu();
-
-	mutex_lock(&port_table_lock);
-	for (j = 0; j < num_ports; ++i, ++j) {
-		port_table_corrupt |= port_table[i] != ports[j];
-		WARN_ONCE(port_table_corrupt, "port_table[%d]: %p != ports[%d]: %p",
-			  i, port_table[i], j, ports[j]);
-
-		port_table[i] = NULL;
-	}
-	mutex_unlock(&port_table_lock);
-
-	for (j = 0; j < num_ports; ++j) {
-		fw_core_remove_address_handler(&ports[j]->rx_handler);
-		tty_port_destroy(&ports[j]->port);
-		kfree(ports[j]);
-	}
-	kfree(serial);
-}
-
-void fwtty_port_put(struct fwtty_port *port)
-{
-	kref_put(&port->serial->kref, fwserial_destroy);
-}
-EXPORT_SYMBOL(fwtty_port_put);
-
-static void fwtty_port_dtr_rts(struct tty_port *tty_port, int on)
-{
-	struct fwtty_port *port = to_port(tty_port, port);
-
-	fwtty_dbg(port, "on/off: %d\n", on);
-
-	spin_lock_bh(&port->lock);
-	/* Don't change carrier state if this is a console */
-	if (!port->port.console) {
-		if (on)
-			port->mctrl |= TIOCM_DTR | TIOCM_RTS;
-		else
-			port->mctrl &= ~(TIOCM_DTR | TIOCM_RTS);
-	}
-
-	__fwtty_write_port_status(port);
-	spin_unlock_bh(&port->lock);
-}
-
-/**
- * fwtty_port_carrier_raised: required tty_port operation
- *
- * This port operation is polled after a tty has been opened and is waiting for
- * carrier detect -- see drivers/tty/tty_port:tty_port_block_til_ready().
- */
-static int fwtty_port_carrier_raised(struct tty_port *tty_port)
-{
-	struct fwtty_port *port = to_port(tty_port, port);
-	int rc;
-
-	rc = (port->mstatus & TIOCM_CAR);
-
-	fwtty_dbg(port, "%d\n", rc);
-
-	return rc;
-}
-
-static unsigned set_termios(struct fwtty_port *port, struct tty_struct *tty)
-{
-	unsigned baud, frame;
-
-	baud = tty_termios_baud_rate(&tty->termios);
-	tty_termios_encode_baud_rate(&tty->termios, baud, baud);
-
-	/* compute bit count of 2 frames */
-	frame = 12 + ((C_CSTOPB(tty)) ? 4 : 2) + ((C_PARENB(tty)) ? 2 : 0);
-
-	switch (C_CSIZE(tty)) {
-	case CS5:
-		frame -= (C_CSTOPB(tty)) ? 1 : 0;
-		break;
-	case CS6:
-		frame += 2;
-		break;
-	case CS7:
-		frame += 4;
-		break;
-	case CS8:
-		frame += 6;
-		break;
-	}
-
-	port->cps = (baud << 1) / frame;
-
-	port->status_mask = UART_LSR_OE;
-	if (_I_FLAG(tty, BRKINT | PARMRK))
-		port->status_mask |= UART_LSR_BI;
-
-	port->ignore_mask = 0;
-	if (I_IGNBRK(tty)) {
-		port->ignore_mask |= UART_LSR_BI;
-		if (I_IGNPAR(tty))
-			port->ignore_mask |= UART_LSR_OE;
-	}
-
-	port->write_only = !C_CREAD(tty);
-
-	/* turn off echo and newline xlat if loopback */
-	if (port->loopback) {
-		tty->termios.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHOKE |
-					  ECHONL | ECHOPRT | ECHOCTL);
-		tty->termios.c_oflag &= ~ONLCR;
-	}
-
-	return baud;
-}
-
-static int fwtty_port_activate(struct tty_port *tty_port,
-			       struct tty_struct *tty)
-{
-	struct fwtty_port *port = to_port(tty_port, port);
-	unsigned baud;
-	int err;
-
-	set_bit(TTY_IO_ERROR, &tty->flags);
-
-	err = dma_fifo_alloc(&port->tx_fifo, FWTTY_PORT_TXFIFO_LEN,
-			     cache_line_size(),
-			     port->max_payload,
-			     FWTTY_PORT_MAX_PEND_DMA,
-			     GFP_KERNEL);
-	if (err)
-		return err;
-
-	spin_lock_bh(&port->lock);
-
-	baud = set_termios(port, tty);
-
-	/* if console, don't change carrier state */
-	if (!port->port.console) {
-		port->mctrl = 0;
-		if (baud != 0)
-			port->mctrl = TIOCM_DTR | TIOCM_RTS;
-	}
-
-	if (C_CRTSCTS(tty) && ~port->mstatus & TIOCM_CTS)
-		tty->hw_stopped = 1;
-
-	__fwtty_write_port_status(port);
-	spin_unlock_bh(&port->lock);
-
-	clear_bit(TTY_IO_ERROR, &tty->flags);
-
-	return 0;
-}
-
-/**
- * fwtty_port_shutdown
- *
- * Note: the tty port core ensures this is not the console and
- * manages TTY_IO_ERROR properly
- */
-static void fwtty_port_shutdown(struct tty_port *tty_port)
-{
-	struct fwtty_port *port = to_port(tty_port, port);
-
-	/* TODO: cancel outstanding transactions */
-
-	cancel_delayed_work_sync(&port->emit_breaks);
-	cancel_delayed_work_sync(&port->drain);
-
-	spin_lock_bh(&port->lock);
-	port->flags = 0;
-	port->break_ctl = 0;
-	port->overrun = 0;
-	__fwtty_write_port_status(port);
-	dma_fifo_free(&port->tx_fifo);
-	spin_unlock_bh(&port->lock);
-}
-
-static int fwtty_open(struct tty_struct *tty, struct file *fp)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	return tty_port_open(&port->port, tty, fp);
-}
-
-static void fwtty_close(struct tty_struct *tty, struct file *fp)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	tty_port_close(&port->port, tty, fp);
-}
-
-static void fwtty_hangup(struct tty_struct *tty)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	tty_port_hangup(&port->port);
-}
-
-static void fwtty_cleanup(struct tty_struct *tty)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	tty->driver_data = NULL;
-	fwtty_port_put(port);
-}
-
-static int fwtty_install(struct tty_driver *driver, struct tty_struct *tty)
-{
-	struct fwtty_port *port = fwtty_port_get(tty->index);
-	int err;
-
-	err = tty_standard_install(driver, tty);
-	if (!err)
-		tty->driver_data = port;
-	else
-		fwtty_port_put(port);
-	return err;
-}
-
-static int fwloop_install(struct tty_driver *driver, struct tty_struct *tty)
-{
-	struct fwtty_port *port = fwtty_port_get(table_idx(tty->index));
-	int err;
-
-	err = tty_standard_install(driver, tty);
-	if (!err)
-		tty->driver_data = port;
-	else
-		fwtty_port_put(port);
-	return err;
-}
-
-static int fwtty_write(struct tty_struct *tty, const unsigned char *buf, int c)
-{
-	struct fwtty_port *port = tty->driver_data;
-	int n, len;
-
-	fwtty_dbg(port, "%d\n", c);
-	fwtty_profile_data(port->stats.writes, c);
-
-	spin_lock_bh(&port->lock);
-	n = dma_fifo_in(&port->tx_fifo, buf, c);
-	len = dma_fifo_out_level(&port->tx_fifo);
-	if (len < DRAIN_THRESHOLD)
-		schedule_delayed_work(&port->drain, 1);
-	spin_unlock_bh(&port->lock);
-
-	if (len >= DRAIN_THRESHOLD)
-		fwtty_tx(port, false);
-
-	debug_short_write(port, c, n);
-
-	return (n < 0) ? 0 : n;
-}
-
-static int fwtty_write_room(struct tty_struct *tty)
-{
-	struct fwtty_port *port = tty->driver_data;
-	int n;
-
-	spin_lock_bh(&port->lock);
-	n = dma_fifo_avail(&port->tx_fifo);
-	spin_unlock_bh(&port->lock);
-
-	fwtty_dbg(port, "%d\n", n);
-
-	return n;
-}
-
-static int fwtty_chars_in_buffer(struct tty_struct *tty)
-{
-	struct fwtty_port *port = tty->driver_data;
-	int n;
-
-	spin_lock_bh(&port->lock);
-	n = dma_fifo_level(&port->tx_fifo);
-	spin_unlock_bh(&port->lock);
-
-	fwtty_dbg(port, "%d\n", n);
-
-	return n;
-}
-
-static void fwtty_send_xchar(struct tty_struct *tty, char ch)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	fwtty_dbg(port, "%02x\n", ch);
-
-	fwtty_write_xchar(port, ch);
-}
-
-static void fwtty_throttle(struct tty_struct *tty)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	/*
-	 * Ignore throttling (but not unthrottling).
-	 * It only makes sense to throttle when data will no longer be
-	 * accepted by the tty flip buffer. For example, it is
-	 * possible for received data to overflow the tty buffer long
-	 * before the line discipline ever has a chance to throttle the driver.
-	 * Additionally, the driver may have already completed the I/O
-	 * but the tty buffer is still emptying, so the line discipline is
-	 * throttling and unthrottling nothing.
-	 */
-
-	++port->stats.throttled;
-}
-
-static void fwtty_unthrottle(struct tty_struct *tty)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	fwtty_dbg(port, "CRTSCTS: %d\n", C_CRTSCTS(tty) != 0);
-
-	fwtty_profile_fifo(port, port->stats.unthrottle);
-
-	spin_lock_bh(&port->lock);
-	port->mctrl &= ~OOB_RX_THROTTLE;
-	if (C_CRTSCTS(tty))
-		port->mctrl |= TIOCM_RTS;
-	__fwtty_write_port_status(port);
-	spin_unlock_bh(&port->lock);
-}
-
-static int check_msr_delta(struct fwtty_port *port, unsigned long mask,
-			   struct async_icount *prev)
-{
-	struct async_icount now;
-	int delta;
-
-	now = port->icount;
-
-	delta = ((mask & TIOCM_RNG && prev->rng != now.rng) ||
-		 (mask & TIOCM_DSR && prev->dsr != now.dsr) ||
-		 (mask & TIOCM_CAR && prev->dcd != now.dcd) ||
-		 (mask & TIOCM_CTS && prev->cts != now.cts));
-
-	*prev = now;
-
-	return delta;
-}
-
-static int wait_msr_change(struct fwtty_port *port, unsigned long mask)
-{
-	struct async_icount prev;
-
-	prev = port->icount;
-
-	return wait_event_interruptible(port->port.delta_msr_wait,
-					check_msr_delta(port, mask, &prev));
-}
-
-static int get_serial_info(struct fwtty_port *port,
-			   struct serial_struct __user *info)
-{
-	struct serial_struct tmp;
-
-	memset(&tmp, 0, sizeof(tmp));
-
-	tmp.type =  PORT_UNKNOWN;
-	tmp.line =  port->port.tty->index;
-	tmp.flags = port->port.flags;
-	tmp.xmit_fifo_size = FWTTY_PORT_TXFIFO_LEN;
-	tmp.baud_base = 400000000;
-	tmp.close_delay = port->port.close_delay;
-
-	return (copy_to_user(info, &tmp, sizeof(*info))) ? -EFAULT : 0;
-}
-
-static int set_serial_info(struct fwtty_port *port,
-			   struct serial_struct __user *info)
-{
-	struct serial_struct tmp;
-
-	if (copy_from_user(&tmp, info, sizeof(tmp)))
-		return -EFAULT;
-
-	if (tmp.irq != 0 || tmp.port != 0 || tmp.custom_divisor != 0 ||
-	    tmp.baud_base != 400000000)
-		return -EPERM;
-
-	if (!capable(CAP_SYS_ADMIN)) {
-		if (((tmp.flags & ~ASYNC_USR_MASK) !=
-		     (port->port.flags & ~ASYNC_USR_MASK)))
-			return -EPERM;
-	} else {
-		port->port.close_delay = tmp.close_delay * HZ / 100;
-	}
-
-	return 0;
-}
-
-static int fwtty_ioctl(struct tty_struct *tty, unsigned cmd,
-		       unsigned long arg)
-{
-	struct fwtty_port *port = tty->driver_data;
-	int err;
-
-	switch (cmd) {
-	case TIOCGSERIAL:
-		mutex_lock(&port->port.mutex);
-		err = get_serial_info(port, (void __user *)arg);
-		mutex_unlock(&port->port.mutex);
-		break;
-
-	case TIOCSSERIAL:
-		mutex_lock(&port->port.mutex);
-		err = set_serial_info(port, (void __user *)arg);
-		mutex_unlock(&port->port.mutex);
-		break;
-
-	case TIOCMIWAIT:
-		err = wait_msr_change(port, arg);
-		break;
-
-	default:
-		err = -ENOIOCTLCMD;
-	}
-
-	return err;
-}
-
-static void fwtty_set_termios(struct tty_struct *tty, struct ktermios *old)
-{
-	struct fwtty_port *port = tty->driver_data;
-	unsigned baud;
-
-	spin_lock_bh(&port->lock);
-	baud = set_termios(port, tty);
-
-	if ((baud == 0) && (old->c_cflag & CBAUD)) {
-		port->mctrl &= ~(TIOCM_DTR | TIOCM_RTS);
-	} else if ((baud != 0) && !(old->c_cflag & CBAUD)) {
-		if (C_CRTSCTS(tty) || !test_bit(TTY_THROTTLED, &tty->flags))
-			port->mctrl |= TIOCM_DTR | TIOCM_RTS;
-		else
-			port->mctrl |= TIOCM_DTR;
-	}
-	__fwtty_write_port_status(port);
-	spin_unlock_bh(&port->lock);
-
-	if (old->c_cflag & CRTSCTS) {
-		if (!C_CRTSCTS(tty)) {
-			tty->hw_stopped = 0;
-			fwtty_restart_tx(port);
-		}
-	} else if (C_CRTSCTS(tty) && ~port->mstatus & TIOCM_CTS) {
-		tty->hw_stopped = 1;
-	}
-}
-
-/**
- * fwtty_break_ctl - start/stop sending breaks
- *
- * Signals the remote to start or stop generating simulated breaks.
- * First, stop dequeueing from the fifo and wait for writer/drain to leave tx
- * before signalling the break line status. This guarantees any pending rx will
- * be queued to the line discipline before break is simulated on the remote.
- * Conversely, turning off break_ctl requires signalling the line status change,
- * then enabling tx.
- */
-static int fwtty_break_ctl(struct tty_struct *tty, int state)
-{
-	struct fwtty_port *port = tty->driver_data;
-	long ret;
-
-	fwtty_dbg(port, "%d\n", state);
-
-	if (state == -1) {
-		set_bit(STOP_TX, &port->flags);
-		ret = wait_event_interruptible_timeout(port->wait_tx,
-					       !test_bit(IN_TX, &port->flags),
-					       10);
-		if (ret == 0 || ret == -ERESTARTSYS) {
-			clear_bit(STOP_TX, &port->flags);
-			fwtty_restart_tx(port);
-			return -EINTR;
-		}
-	}
-
-	spin_lock_bh(&port->lock);
-	port->break_ctl = (state == -1);
-	__fwtty_write_port_status(port);
-	spin_unlock_bh(&port->lock);
-
-	if (state == 0) {
-		spin_lock_bh(&port->lock);
-		dma_fifo_reset(&port->tx_fifo);
-		clear_bit(STOP_TX, &port->flags);
-		spin_unlock_bh(&port->lock);
-	}
-	return 0;
-}
-
-static int fwtty_tiocmget(struct tty_struct *tty)
-{
-	struct fwtty_port *port = tty->driver_data;
-	unsigned tiocm;
-
-	spin_lock_bh(&port->lock);
-	tiocm = (port->mctrl & MCTRL_MASK) | (port->mstatus & ~MCTRL_MASK);
-	spin_unlock_bh(&port->lock);
-
-	fwtty_dbg(port, "%x\n", tiocm);
-
-	return tiocm;
-}
-
-static int fwtty_tiocmset(struct tty_struct *tty, unsigned set, unsigned clear)
-{
-	struct fwtty_port *port = tty->driver_data;
-
-	fwtty_dbg(port, "set: %x clear: %x\n", set, clear);
-
-	/* TODO: simulate loopback if TIOCM_LOOP set */
-
-	spin_lock_bh(&port->lock);
-	port->mctrl &= ~(clear & MCTRL_MASK & 0xffff);
-	port->mctrl |= set & MCTRL_MASK & 0xffff;
-	__fwtty_write_port_status(port);
-	spin_unlock_bh(&port->lock);
-	return 0;
-}
-
-static int fwtty_get_icount(struct tty_struct *tty,
-			    struct serial_icounter_struct *icount)
-{
-	struct fwtty_port *port = tty->driver_data;
-	struct stats stats;
-
-	memcpy(&stats, &port->stats, sizeof(stats));
-	if (port->port.console)
-		(*port->fwcon_ops->stats)(&stats, port->con_data);
-
-	icount->cts = port->icount.cts;
-	icount->dsr = port->icount.dsr;
-	icount->rng = port->icount.rng;
-	icount->dcd = port->icount.dcd;
-	icount->rx  = port->icount.rx;
-	icount->tx  = port->icount.tx + stats.xchars;
-	icount->frame   = port->icount.frame;
-	icount->overrun = port->icount.overrun;
-	icount->parity  = port->icount.parity;
-	icount->brk     = port->icount.brk;
-	icount->buf_overrun = port->icount.overrun;
-	return 0;
-}
-
-static void fwtty_proc_show_port(struct seq_file *m, struct fwtty_port *port)
-{
-	struct stats stats;
-
-	memcpy(&stats, &port->stats, sizeof(stats));
-	if (port->port.console)
-		(*port->fwcon_ops->stats)(&stats, port->con_data);
-
-	seq_printf(m, " addr:%012llx tx:%d rx:%d", port->rx_handler.offset,
-		   port->icount.tx + stats.xchars, port->icount.rx);
-	seq_printf(m, " cts:%d dsr:%d rng:%d dcd:%d", port->icount.cts,
-		   port->icount.dsr, port->icount.rng, port->icount.dcd);
-	seq_printf(m, " fe:%d oe:%d pe:%d brk:%d", port->icount.frame,
-		   port->icount.overrun, port->icount.parity, port->icount.brk);
-}
-
-static void fwtty_debugfs_show_port(struct seq_file *m, struct fwtty_port *port)
-{
-	struct stats stats;
-
-	memcpy(&stats, &port->stats, sizeof(stats));
-	if (port->port.console)
-		(*port->fwcon_ops->stats)(&stats, port->con_data);
-
-	seq_printf(m, " dr:%d st:%d err:%d lost:%d", stats.dropped,
-		   stats.tx_stall, stats.fifo_errs, stats.lost);
-	seq_printf(m, " pkts:%d thr:%d", stats.sent, stats.throttled);
-
-	if (port->port.console) {
-		seq_puts(m, "\n    ");
-		(*port->fwcon_ops->proc_show)(m, port->con_data);
-	}
-
-	fwtty_dump_profile(m, &port->stats);
-}
-
-static void fwtty_debugfs_show_peer(struct seq_file *m, struct fwtty_peer *peer)
-{
-	int generation = peer->generation;
-
-	smp_rmb();
-	seq_printf(m, " %s:", dev_name(&peer->unit->device));
-	seq_printf(m, " node:%04x gen:%d", peer->node_id, generation);
-	seq_printf(m, " sp:%d max:%d guid:%016llx", peer->speed,
-		   peer->max_payload, (unsigned long long) peer->guid);
-	seq_printf(m, " mgmt:%012llx", (unsigned long long) peer->mgmt_addr);
-	seq_printf(m, " addr:%012llx", (unsigned long long) peer->status_addr);
-	seq_putc(m, '\n');
-}
-
-static int fwtty_proc_show(struct seq_file *m, void *v)
-{
-	struct fwtty_port *port;
-	int i;
-
-	seq_puts(m, "fwserinfo: 1.0 driver: 1.0\n");
-	for (i = 0; i < MAX_TOTAL_PORTS && (port = fwtty_port_get(i)); ++i) {
-		seq_printf(m, "%2d:", i);
-		if (capable(CAP_SYS_ADMIN))
-			fwtty_proc_show_port(m, port);
-		fwtty_port_put(port);
-		seq_puts(m, "\n");
-	}
-	return 0;
-}
-
-static int fwtty_debugfs_stats_show(struct seq_file *m, void *v)
-{
-	struct fw_serial *serial = m->private;
-	struct fwtty_port *port;
-	int i;
-
-	for (i = 0; i < num_ports; ++i) {
-		port = fwtty_port_get(serial->ports[i]->index);
-		if (port) {
-			seq_printf(m, "%2d:", port->index);
-			fwtty_proc_show_port(m, port);
-			fwtty_debugfs_show_port(m, port);
-			fwtty_port_put(port);
-			seq_puts(m, "\n");
-		}
-	}
-	return 0;
-}
-
-static int fwtty_debugfs_peers_show(struct seq_file *m, void *v)
-{
-	struct fw_serial *serial = m->private;
-	struct fwtty_peer *peer;
-
-	rcu_read_lock();
-	seq_printf(m, "card: %s  guid: %016llx\n",
-		   dev_name(serial->card->device),
-		   (unsigned long long) serial->card->guid);
-	list_for_each_entry_rcu(peer, &serial->peer_list, list)
-		fwtty_debugfs_show_peer(m, peer);
-	rcu_read_unlock();
-	return 0;
-}
-
-static int fwtty_proc_open(struct inode *inode, struct file *fp)
-{
-	return single_open(fp, fwtty_proc_show, NULL);
-}
-
-static int fwtty_stats_open(struct inode *inode, struct file *fp)
-{
-	return single_open(fp, fwtty_debugfs_stats_show, inode->i_private);
-}
-
-static int fwtty_peers_open(struct inode *inode, struct file *fp)
-{
-	return single_open(fp, fwtty_debugfs_peers_show, inode->i_private);
-}
-
-static const struct file_operations fwtty_stats_fops = {
-	.owner =	THIS_MODULE,
-	.open =		fwtty_stats_open,
-	.read =		seq_read,
-	.llseek =	seq_lseek,
-	.release =	single_release,
-};
-
-static const struct file_operations fwtty_peers_fops = {
-	.owner =	THIS_MODULE,
-	.open =		fwtty_peers_open,
-	.read =		seq_read,
-	.llseek =	seq_lseek,
-	.release =	single_release,
-};
-
-static const struct file_operations fwtty_proc_fops = {
-	.owner =        THIS_MODULE,
-	.open =         fwtty_proc_open,
-	.read =         seq_read,
-	.llseek =       seq_lseek,
-	.release =      single_release,
-};
-
-static const struct tty_port_operations fwtty_port_ops = {
-	.dtr_rts =		fwtty_port_dtr_rts,
-	.carrier_raised =	fwtty_port_carrier_raised,
-	.shutdown =		fwtty_port_shutdown,
-	.activate =		fwtty_port_activate,
-};
-
-static const struct tty_operations fwtty_ops = {
-	.open =			fwtty_open,
-	.close =		fwtty_close,
-	.hangup =		fwtty_hangup,
-	.cleanup =		fwtty_cleanup,
-	.install =		fwtty_install,
-	.write =		fwtty_write,
-	.write_room =		fwtty_write_room,
-	.chars_in_buffer =	fwtty_chars_in_buffer,
-	.send_xchar =           fwtty_send_xchar,
-	.throttle =             fwtty_throttle,
-	.unthrottle =           fwtty_unthrottle,
-	.ioctl =		fwtty_ioctl,
-	.set_termios =		fwtty_set_termios,
-	.break_ctl =		fwtty_break_ctl,
-	.tiocmget =		fwtty_tiocmget,
-	.tiocmset =		fwtty_tiocmset,
-	.get_icount =		fwtty_get_icount,
-	.proc_fops =		&fwtty_proc_fops,
-};
-
-static const struct tty_operations fwloop_ops = {
-	.open =			fwtty_open,
-	.close =		fwtty_close,
-	.hangup =		fwtty_hangup,
-	.cleanup =		fwtty_cleanup,
-	.install =		fwloop_install,
-	.write =		fwtty_write,
-	.write_room =		fwtty_write_room,
-	.chars_in_buffer =	fwtty_chars_in_buffer,
-	.send_xchar =           fwtty_send_xchar,
-	.throttle =             fwtty_throttle,
-	.unthrottle =           fwtty_unthrottle,
-	.ioctl =		fwtty_ioctl,
-	.set_termios =		fwtty_set_termios,
-	.break_ctl =		fwtty_break_ctl,
-	.tiocmget =		fwtty_tiocmget,
-	.tiocmset =		fwtty_tiocmset,
-	.get_icount =		fwtty_get_icount,
-};
-
-static inline int mgmt_pkt_expected_len(__be16 code)
-{
-	static const struct fwserial_mgmt_pkt pkt;
-
-	switch (be16_to_cpu(code)) {
-	case FWSC_VIRT_CABLE_PLUG:
-		return sizeof(pkt.hdr) + sizeof(pkt.plug_req);
-
-	case FWSC_VIRT_CABLE_PLUG_RSP:  /* | FWSC_RSP_OK */
-		return sizeof(pkt.hdr) + sizeof(pkt.plug_rsp);
-
-	case FWSC_VIRT_CABLE_UNPLUG:
-	case FWSC_VIRT_CABLE_UNPLUG_RSP:
-	case FWSC_VIRT_CABLE_PLUG_RSP | FWSC_RSP_NACK:
-	case FWSC_VIRT_CABLE_UNPLUG_RSP | FWSC_RSP_NACK:
-		return sizeof(pkt.hdr);
-
-	default:
-		return -1;
-	}
-}
-
-static inline void fill_plug_params(struct virt_plug_params *params,
-				    struct fwtty_port *port)
-{
-	u64 status_addr = port->rx_handler.offset;
-	u64 fifo_addr = port->rx_handler.offset + 4;
-	size_t fifo_len = port->rx_handler.length - 4;
-
-	params->status_hi = cpu_to_be32(status_addr >> 32);
-	params->status_lo = cpu_to_be32(status_addr);
-	params->fifo_hi = cpu_to_be32(fifo_addr >> 32);
-	params->fifo_lo = cpu_to_be32(fifo_addr);
-	params->fifo_len = cpu_to_be32(fifo_len);
-}
-
-static inline void fill_plug_req(struct fwserial_mgmt_pkt *pkt,
-				 struct fwtty_port *port)
-{
-	pkt->hdr.code = cpu_to_be16(FWSC_VIRT_CABLE_PLUG);
-	pkt->hdr.len = cpu_to_be16(mgmt_pkt_expected_len(pkt->hdr.code));
-	fill_plug_params(&pkt->plug_req, port);
-}
-
-static inline void fill_plug_rsp_ok(struct fwserial_mgmt_pkt *pkt,
-				    struct fwtty_port *port)
-{
-	pkt->hdr.code = cpu_to_be16(FWSC_VIRT_CABLE_PLUG_RSP);
-	pkt->hdr.len = cpu_to_be16(mgmt_pkt_expected_len(pkt->hdr.code));
-	fill_plug_params(&pkt->plug_rsp, port);
-}
-
-static inline void fill_plug_rsp_nack(struct fwserial_mgmt_pkt *pkt)
-{
-	pkt->hdr.code = cpu_to_be16(FWSC_VIRT_CABLE_PLUG_RSP | FWSC_RSP_NACK);
-	pkt->hdr.len = cpu_to_be16(mgmt_pkt_expected_len(pkt->hdr.code));
-}
-
-static inline void fill_unplug_req(struct fwserial_mgmt_pkt *pkt)
-{
-	pkt->hdr.code = cpu_to_be16(FWSC_VIRT_CABLE_UNPLUG);
-	pkt->hdr.len = cpu_to_be16(mgmt_pkt_expected_len(pkt->hdr.code));
-}
-
-static inline void fill_unplug_rsp_nack(struct fwserial_mgmt_pkt *pkt)
-{
-	pkt->hdr.code = cpu_to_be16(FWSC_VIRT_CABLE_UNPLUG_RSP | FWSC_RSP_NACK);
-	pkt->hdr.len = cpu_to_be16(mgmt_pkt_expected_len(pkt->hdr.code));
-}
-
-static inline void fill_unplug_rsp_ok(struct fwserial_mgmt_pkt *pkt)
-{
-	pkt->hdr.code = cpu_to_be16(FWSC_VIRT_CABLE_UNPLUG_RSP);
-	pkt->hdr.len = cpu_to_be16(mgmt_pkt_expected_len(pkt->hdr.code));
-}
-
-static void fwserial_virt_plug_complete(struct fwtty_peer *peer,
-					struct virt_plug_params *params)
-{
-	struct fwtty_port *port = peer->port;
-
-	peer->status_addr = be32_to_u64(params->status_hi, params->status_lo);
-	peer->fifo_addr = be32_to_u64(params->fifo_hi, params->fifo_lo);
-	peer->fifo_len = be32_to_cpu(params->fifo_len);
-	peer_set_state(peer, FWPS_ATTACHED);
-
-	/* reconfigure tx_fifo optimally for this peer */
-	spin_lock_bh(&port->lock);
-	port->max_payload = min(peer->max_payload, peer->fifo_len);
-	dma_fifo_change_tx_limit(&port->tx_fifo, port->max_payload);
-	spin_unlock_bh(&peer->port->lock);
-
-	if (port->port.console && port->fwcon_ops->notify != NULL)
-		(*port->fwcon_ops->notify)(FWCON_NOTIFY_ATTACH, port->con_data);
-
-	fwtty_info(&peer->unit, "peer (guid:%016llx) connected on %s\n",
-		   (unsigned long long)peer->guid, dev_name(port->device));
-}
-
-static inline int fwserial_send_mgmt_sync(struct fwtty_peer *peer,
-					  struct fwserial_mgmt_pkt *pkt)
-{
-	int generation;
-	int rcode, tries = 5;
-
-	do {
-		generation = peer->generation;
-		smp_rmb();
-
-		rcode = fw_run_transaction(peer->serial->card,
-					   TCODE_WRITE_BLOCK_REQUEST,
-					   peer->node_id,
-					   generation, peer->speed,
-					   peer->mgmt_addr,
-					   pkt, be16_to_cpu(pkt->hdr.len));
-		if (rcode == RCODE_BUSY || rcode == RCODE_SEND_ERROR ||
-		    rcode == RCODE_GENERATION) {
-			fwtty_dbg(&peer->unit, "mgmt write error: %d\n", rcode);
-			continue;
-		} else {
-			break;
-		}
-	} while (--tries > 0);
-	return rcode;
-}
-
-/**
- * fwserial_claim_port - attempt to claim port @ index for peer
- *
- * Returns ptr to claimed port or error code (as ERR_PTR())
- * Can sleep - must be called from process context
- */
-static struct fwtty_port *fwserial_claim_port(struct fwtty_peer *peer,
-					      int index)
-{
-	struct fwtty_port *port;
-
-	if (index < 0 || index >= num_ports)
-		return ERR_PTR(-EINVAL);
-
-	/* must guarantee that previous port releases have completed */
-	synchronize_rcu();
-
-	port = peer->serial->ports[index];
-	spin_lock_bh(&port->lock);
-	if (!rcu_access_pointer(port->peer))
-		rcu_assign_pointer(port->peer, peer);
-	else
-		port = ERR_PTR(-EBUSY);
-	spin_unlock_bh(&port->lock);
-
-	return port;
-}
-
-/**
- * fwserial_find_port - find avail port and claim for peer
- *
- * Returns ptr to claimed port or NULL if none avail
- * Can sleep - must be called from process context
- */
-static struct fwtty_port *fwserial_find_port(struct fwtty_peer *peer)
-{
-	struct fwtty_port **ports = peer->serial->ports;
-	int i;
-
-	/* must guarantee that previous port releases have completed */
-	synchronize_rcu();
-
-	/* TODO: implement optional GUID-to-specific port # matching */
-
-	/* find an unattached port (but not the loopback port, if present) */
-	for (i = 0; i < num_ttys; ++i) {
-		spin_lock_bh(&ports[i]->lock);
-		if (!ports[i]->peer) {
-			/* claim port */
-			rcu_assign_pointer(ports[i]->peer, peer);
-			spin_unlock_bh(&ports[i]->lock);
-			return ports[i];
-		}
-		spin_unlock_bh(&ports[i]->lock);
-	}
-	return NULL;
-}
-
-static void fwserial_release_port(struct fwtty_port *port, bool reset)
-{
-	/* drop carrier (and all other line status) */
-	if (reset)
-		fwtty_update_port_status(port, 0);
-
-	spin_lock_bh(&port->lock);
-
-	/* reset dma fifo max transmission size back to S100 */
-	port->max_payload = link_speed_to_max_payload(SCODE_100);
-	dma_fifo_change_tx_limit(&port->tx_fifo, port->max_payload);
-
-	RCU_INIT_POINTER(port->peer, NULL);
-	spin_unlock_bh(&port->lock);
-
-	if (port->port.console && port->fwcon_ops->notify != NULL)
-		(*port->fwcon_ops->notify)(FWCON_NOTIFY_DETACH, port->con_data);
-}
-
-static void fwserial_plug_timeout(unsigned long data)
-{
-	struct fwtty_peer *peer = (struct fwtty_peer *)data;
-	struct fwtty_port *port;
-
-	spin_lock_bh(&peer->lock);
-	if (peer->state != FWPS_PLUG_PENDING) {
-		spin_unlock_bh(&peer->lock);
-		return;
-	}
-
-	port = peer_revert_state(peer);
-	spin_unlock_bh(&peer->lock);
-
-	if (port)
-		fwserial_release_port(port, false);
-}
-
-/**
- * fwserial_connect_peer - initiate virtual cable with peer
- *
- * Returns 0 if VIRT_CABLE_PLUG request was successfully sent,
- * otherwise error code.  Must be called from process context.
- */
-static int fwserial_connect_peer(struct fwtty_peer *peer)
-{
-	struct fwtty_port *port;
-	struct fwserial_mgmt_pkt *pkt;
-	int err, rcode;
-
-	pkt = kmalloc(sizeof(*pkt), GFP_KERNEL);
-	if (!pkt)
-		return -ENOMEM;
-
-	port = fwserial_find_port(peer);
-	if (!port) {
-		fwtty_err(&peer->unit, "avail ports in use\n");
-		err = -EBUSY;
-		goto free_pkt;
-	}
-
-	spin_lock_bh(&peer->lock);
-
-	/* only initiate VIRT_CABLE_PLUG if peer is currently not attached */
-	if (peer->state != FWPS_NOT_ATTACHED) {
-		err = -EBUSY;
-		goto release_port;
-	}
-
-	peer->port = port;
-	peer_set_state(peer, FWPS_PLUG_PENDING);
-
-	fill_plug_req(pkt, peer->port);
-
-	setup_timer(&peer->timer, fwserial_plug_timeout, (unsigned long)peer);
-	mod_timer(&peer->timer, jiffies + VIRT_CABLE_PLUG_TIMEOUT);
-	spin_unlock_bh(&peer->lock);
-
-	rcode = fwserial_send_mgmt_sync(peer, pkt);
-
-	spin_lock_bh(&peer->lock);
-	if (peer->state == FWPS_PLUG_PENDING && rcode != RCODE_COMPLETE) {
-		if (rcode == RCODE_CONFLICT_ERROR)
-			err = -EAGAIN;
-		else
-			err = -EIO;
-		goto cancel_timer;
-	}
-	spin_unlock_bh(&peer->lock);
-
-	kfree(pkt);
-	return 0;
-
-cancel_timer:
-	del_timer(&peer->timer);
-	peer_revert_state(peer);
-release_port:
-	spin_unlock_bh(&peer->lock);
-	fwserial_release_port(port, false);
-free_pkt:
-	kfree(pkt);
-	return err;
-}
-
-/**
- * fwserial_close_port -
- * HUP the tty (if the tty exists) and unregister the tty device.
- * Only used by the unit driver upon unit removal to disconnect and
- * cleanup all attached ports
- *
- * The port reference is put by fwtty_cleanup (if a reference was
- * ever taken).
- */
-static void fwserial_close_port(struct tty_driver *driver,
-				struct fwtty_port *port)
-{
-	struct tty_struct *tty;
-
-	mutex_lock(&port->port.mutex);
-	tty = tty_port_tty_get(&port->port);
-	if (tty) {
-		tty_vhangup(tty);
-		tty_kref_put(tty);
-	}
-	mutex_unlock(&port->port.mutex);
-
-	if (driver == fwloop_driver)
-		tty_unregister_device(driver, loop_idx(port));
-	else
-		tty_unregister_device(driver, port->index);
-}
-
-/**
- * fwserial_lookup - finds first fw_serial associated with card
- * @card: fw_card to match
- *
- * NB: caller must be holding fwserial_list_mutex
- */
-static struct fw_serial *fwserial_lookup(struct fw_card *card)
-{
-	struct fw_serial *serial;
-
-	list_for_each_entry(serial, &fwserial_list, list) {
-		if (card == serial->card)
-			return serial;
-	}
-
-	return NULL;
-}
-
-/**
- * __fwserial_lookup_rcu - finds first fw_serial associated with card
- * @card: fw_card to match
- *
- * NB: caller must be inside rcu_read_lock() section
- */
-static struct fw_serial *__fwserial_lookup_rcu(struct fw_card *card)
-{
-	struct fw_serial *serial;
-
-	list_for_each_entry_rcu(serial, &fwserial_list, list) {
-		if (card == serial->card)
-			return serial;
-	}
-
-	return NULL;
-}
-
-/**
- * __fwserial_peer_by_node_id - finds a peer matching the given generation + id
- *
- * If a matching peer could not be found for the specified generation/node id,
- * this could be because:
- * a) the generation has changed and one of the nodes hasn't updated yet
- * b) the remote node has created its remote unit device before this
- *    local node has created its corresponding remote unit device
- * In either case, the remote node should retry
- *
- * Note: caller must be in rcu_read_lock() section
- */
-static struct fwtty_peer *__fwserial_peer_by_node_id(struct fw_card *card,
-						     int generation, int id)
-{
-	struct fw_serial *serial;
-	struct fwtty_peer *peer;
-
-	serial = __fwserial_lookup_rcu(card);
-	if (!serial) {
-		/*
-		 * Something is very wrong - there should be a matching
-		 * fw_serial structure for every fw_card. Maybe the remote node
-		 * has created its remote unit device before this driver has
-		 * been probed for any unit devices...
-		 */
-		fwtty_err(card, "unknown card (guid %016llx)\n",
-			  (unsigned long long) card->guid);
-		return NULL;
-	}
-
-	list_for_each_entry_rcu(peer, &serial->peer_list, list) {
-		int g = peer->generation;
-
-		smp_rmb();
-		if (generation == g && id == peer->node_id)
-			return peer;
-	}
-
-	return NULL;
-}
-
-#ifdef DEBUG
-static void __dump_peer_list(struct fw_card *card)
-{
-	struct fw_serial *serial;
-	struct fwtty_peer *peer;
-
-	serial = __fwserial_lookup_rcu(card);
-	if (!serial)
-		return;
-
-	list_for_each_entry_rcu(peer, &serial->peer_list, list) {
-		int g = peer->generation;
-
-		smp_rmb();
-		fwtty_dbg(card, "peer(%d:%x) guid: %016llx\n",
-			  g, peer->node_id, (unsigned long long) peer->guid);
-	}
-}
-#else
-#define __dump_peer_list(s)
-#endif
-
-static void fwserial_auto_connect(struct work_struct *work)
-{
-	struct fwtty_peer *peer = to_peer(to_delayed_work(work), connect);
-	int err;
-
-	err = fwserial_connect_peer(peer);
-	if (err == -EAGAIN && ++peer->connect_retries < MAX_CONNECT_RETRIES)
-		schedule_delayed_work(&peer->connect, CONNECT_RETRY_DELAY);
-}
-
-static void fwserial_peer_workfn(struct work_struct *work)
-{
-	struct fwtty_peer *peer = to_peer(work, work);
-
-	peer->workfn(work);
-}
-
-/**
- * fwserial_add_peer - add a newly probed 'serial' unit device as a 'peer'
- * @serial: aggregate representing the specific fw_card to add the peer to
- * @unit: 'peer' to create and add to peer_list of serial
- *
- * Adds a 'peer' (ie, a local or remote 'serial' unit device) to the list of
- * peers for a specific fw_card. Optionally, auto-attach this peer to an
- * available tty port. This function is called either directly or indirectly
- * as a result of a 'serial' unit device being created & probed.
- *
- * Note: this function is serialized with fwserial_remove_peer() by the
- * fwserial_list_mutex held in fwserial_probe().
- *
- * A 1:1 correspondence between an fw_unit and an fwtty_peer is maintained
- * via the dev_set_drvdata() for the device of the fw_unit.
- */
-static int fwserial_add_peer(struct fw_serial *serial, struct fw_unit *unit)
-{
-	struct device *dev = &unit->device;
-	struct fw_device  *parent = fw_parent_device(unit);
-	struct fwtty_peer *peer;
-	struct fw_csr_iterator ci;
-	int key, val;
-	int generation;
-
-	peer = kzalloc(sizeof(*peer), GFP_KERNEL);
-	if (!peer)
-		return -ENOMEM;
-
-	peer_set_state(peer, FWPS_NOT_ATTACHED);
-
-	dev_set_drvdata(dev, peer);
-	peer->unit = unit;
-	peer->guid = (u64)parent->config_rom[3] << 32 | parent->config_rom[4];
-	peer->speed = parent->max_speed;
-	peer->max_payload = min(device_max_receive(parent),
-				link_speed_to_max_payload(peer->speed));
-
-	generation = parent->generation;
-	smp_rmb();
-	peer->node_id = parent->node_id;
-	smp_wmb();
-	peer->generation = generation;
-
-	/* retrieve the mgmt bus addr from the unit directory */
-	fw_csr_iterator_init(&ci, unit->directory);
-	while (fw_csr_iterator_next(&ci, &key, &val)) {
-		if (key == (CSR_OFFSET | CSR_DEPENDENT_INFO)) {
-			peer->mgmt_addr = CSR_REGISTER_BASE + 4 * val;
-			break;
-		}
-	}
-	if (peer->mgmt_addr == 0ULL) {
-		/*
-		 * No mgmt address effectively disables VIRT_CABLE_PLUG -
-		 * this peer will not be able to attach to a remote
-		 */
-		peer_set_state(peer, FWPS_NO_MGMT_ADDR);
-	}
-
-	spin_lock_init(&peer->lock);
-	peer->port = NULL;
-
-	init_timer(&peer->timer);
-	INIT_WORK(&peer->work, fwserial_peer_workfn);
-	INIT_DELAYED_WORK(&peer->connect, fwserial_auto_connect);
-
-	/* associate peer with specific fw_card */
-	peer->serial = serial;
-	list_add_rcu(&peer->list, &serial->peer_list);
-
-	fwtty_info(&peer->unit, "peer added (guid:%016llx)\n",
-		   (unsigned long long)peer->guid);
-
-	/* identify the local unit & virt cable to loopback port */
-	if (parent->is_local) {
-		serial->self = peer;
-		if (create_loop_dev) {
-			struct fwtty_port *port;
-
-			port = fwserial_claim_port(peer, num_ttys);
-			if (!IS_ERR(port)) {
-				struct virt_plug_params params;
-
-				spin_lock_bh(&peer->lock);
-				peer->port = port;
-				fill_plug_params(&params, port);
-				fwserial_virt_plug_complete(peer, &params);
-				spin_unlock_bh(&peer->lock);
-
-				fwtty_write_port_status(port);
-			}
-		}
-
-	} else if (auto_connect) {
-		/* auto-attach to remote units only (if policy allows) */
-		schedule_delayed_work(&peer->connect, 1);
-	}
-
-	return 0;
-}
-
-/**
- * fwserial_remove_peer - remove a 'serial' unit device as a 'peer'
- *
- * Remove a 'peer' from its list of peers. This function is only
- * called by fwserial_remove() on bus removal of the unit device.
- *
- * Note: this function is serialized with fwserial_add_peer() by the
- * fwserial_list_mutex held in fwserial_remove().
- */
-static void fwserial_remove_peer(struct fwtty_peer *peer)
-{
-	struct fwtty_port *port;
-
-	spin_lock_bh(&peer->lock);
-	peer_set_state(peer, FWPS_GONE);
-	spin_unlock_bh(&peer->lock);
-
-	cancel_delayed_work_sync(&peer->connect);
-	cancel_work_sync(&peer->work);
-
-	spin_lock_bh(&peer->lock);
-	/* if this unit is the local unit, clear link */
-	if (peer == peer->serial->self)
-		peer->serial->self = NULL;
-
-	/* cancel the request timeout timer (if running) */
-	del_timer(&peer->timer);
-
-	port = peer->port;
-	peer->port = NULL;
-
-	list_del_rcu(&peer->list);
-
-	fwtty_info(&peer->unit, "peer removed (guid:%016llx)\n",
-		   (unsigned long long)peer->guid);
-
-	spin_unlock_bh(&peer->lock);
-
-	if (port)
-		fwserial_release_port(port, true);
-
-	synchronize_rcu();
-	kfree(peer);
-}
-
-/**
- * fwserial_create - init everything to create TTYs for a specific fw_card
- * @unit: fw_unit for first 'serial' unit device probed for this fw_card
- *
- * This function inits the aggregate structure (an fw_serial instance)
- * used to manage the TTY ports registered by a specific fw_card. Also, the
- * unit device is added as the first 'peer'.
- *
- * This unit device may represent a local unit device (as specified by the
- * config ROM unit directory) or it may represent a remote unit device
- * (as specified by the reading of the remote node's config ROM).
- *
- * Returns 0 to indicate "ownership" of the unit device, or a negative errno
- * value to indicate which error.
- */
-static int fwserial_create(struct fw_unit *unit)
-{
-	struct fw_device *parent = fw_parent_device(unit);
-	struct fw_card *card = parent->card;
-	struct fw_serial *serial;
-	struct fwtty_port *port;
-	struct device *tty_dev;
-	int i, j;
-	int err;
-
-	serial = kzalloc(sizeof(*serial), GFP_KERNEL);
-	if (!serial)
-		return -ENOMEM;
-
-	kref_init(&serial->kref);
-	serial->card = card;
-	INIT_LIST_HEAD(&serial->peer_list);
-
-	for (i = 0; i < num_ports; ++i) {
-		port = kzalloc(sizeof(*port), GFP_KERNEL);
-		if (!port) {
-			err = -ENOMEM;
-			goto free_ports;
-		}
-		tty_port_init(&port->port);
-		port->index = FWTTY_INVALID_INDEX;
-		port->port.ops = &fwtty_port_ops;
-		port->serial = serial;
-		tty_buffer_set_limit(&port->port, 128 * 1024);
-
-		spin_lock_init(&port->lock);
-		INIT_DELAYED_WORK(&port->drain, fwtty_drain_tx);
-		INIT_DELAYED_WORK(&port->emit_breaks, fwtty_emit_breaks);
-		INIT_WORK(&port->hangup, fwtty_do_hangup);
-		init_waitqueue_head(&port->wait_tx);
-		port->max_payload = link_speed_to_max_payload(SCODE_100);
-		dma_fifo_init(&port->tx_fifo);
-
-		RCU_INIT_POINTER(port->peer, NULL);
-		serial->ports[i] = port;
-
-		/* get unique bus addr region for port's status & recv fifo */
-		port->rx_handler.length = FWTTY_PORT_RXFIFO_LEN + 4;
-		port->rx_handler.address_callback = fwtty_port_handler;
-		port->rx_handler.callback_data = port;
-		/*
-		 * XXX: use custom memory region above cpu physical memory addrs
-		 * this will ease porting to 64-bit firewire adapters
-		 */
-		err = fw_core_add_address_handler(&port->rx_handler,
-						  &fw_high_memory_region);
-		if (err) {
-			kfree(port);
-			goto free_ports;
-		}
-	}
-	/* preserve i for error cleanup */
-
-	err = fwtty_ports_add(serial);
-	if (err) {
-		fwtty_err(&unit, "no space in port table\n");
-		goto free_ports;
-	}
-
-	for (j = 0; j < num_ttys; ++j) {
-		tty_dev = tty_port_register_device(&serial->ports[j]->port,
-						   fwtty_driver,
-						   serial->ports[j]->index,
-						   card->device);
-		if (IS_ERR(tty_dev)) {
-			err = PTR_ERR(tty_dev);
-			fwtty_err(&unit, "register tty device error (%d)\n",
-				  err);
-			goto unregister_ttys;
-		}
-
-		serial->ports[j]->device = tty_dev;
-	}
-	/* preserve j for error cleanup */
-
-	if (create_loop_dev) {
-		struct device *loop_dev;
-
-		loop_dev = tty_port_register_device(&serial->ports[j]->port,
-						    fwloop_driver,
-						    loop_idx(serial->ports[j]),
-						    card->device);
-		if (IS_ERR(loop_dev)) {
-			err = PTR_ERR(loop_dev);
-			fwtty_err(&unit, "create loop device failed (%d)\n",
-				  err);
-			goto unregister_ttys;
-		}
-		serial->ports[j]->device = loop_dev;
-		serial->ports[j]->loopback = true;
-	}
-
-	if (!IS_ERR_OR_NULL(fwserial_debugfs)) {
-		serial->debugfs = debugfs_create_dir(dev_name(&unit->device),
-						     fwserial_debugfs);
-		if (!IS_ERR_OR_NULL(serial->debugfs)) {
-			debugfs_create_file("peers", 0444, serial->debugfs,
-					    serial, &fwtty_peers_fops);
-			debugfs_create_file("stats", 0444, serial->debugfs,
-					    serial, &fwtty_stats_fops);
-		}
-	}
-
-	list_add_rcu(&serial->list, &fwserial_list);
-
-	fwtty_notice(&unit, "TTY over FireWire on device %s (guid %016llx)\n",
-		     dev_name(card->device), (unsigned long long) card->guid);
-
-	err = fwserial_add_peer(serial, unit);
-	if (!err)
-		return 0;
-
-	fwtty_err(&unit, "unable to add peer unit device (%d)\n", err);
-
-	/* fall-through to error processing */
-	debugfs_remove_recursive(serial->debugfs);
-
-	list_del_rcu(&serial->list);
-	if (create_loop_dev)
-		tty_unregister_device(fwloop_driver,
-				      loop_idx(serial->ports[j]));
-unregister_ttys:
-	for (--j; j >= 0; --j)
-		tty_unregister_device(fwtty_driver, serial->ports[j]->index);
-	kref_put(&serial->kref, fwserial_destroy);
-	return err;
-
-free_ports:
-	for (--i; i >= 0; --i) {
-		tty_port_destroy(&serial->ports[i]->port);
-		kfree(serial->ports[i]);
-	}
-	kfree(serial);
-	return err;
-}
-
-/**
- * fwserial_probe: bus probe function for firewire 'serial' unit devices
- *
- * A 'serial' unit device is created and probed as a result of:
- * - declaring a ieee1394 bus id table for 'devices' matching a fabricated
- *   'serial' unit specifier id
- * - adding a unit directory to the config ROM(s) for a 'serial' unit
- *
- * The firewire core registers unit devices by enumerating unit directories
- * of a node's config ROM after reading the config ROM when a new node is
- * added to the bus topology after a bus reset.
- *
- * The practical implications of this are:
- * - this probe is called for both local and remote nodes that have a 'serial'
- *   unit directory in their config ROM (that matches the specifiers in
- *   fwserial_id_table).
- * - no specific order is enforced for local vs. remote unit devices
- *
- * This unit driver copes with the lack of specific order in the same way the
- * firewire net driver does -- each probe, for either a local or remote unit
- * device, is treated as a 'peer' (has a struct fwtty_peer instance) and the
- * first peer created for a given fw_card (tracked by the global fwserial_list)
- * creates the underlying TTYs (aggregated in a fw_serial instance).
- *
- * NB: an early attempt to differentiate local & remote unit devices by creating
- *     peers only for remote units and fw_serial instances (with their
- *     associated TTY devices) only for local units was discarded. Managing
- *     the peer lifetimes on device removal proved too complicated.
- *
- * fwserial_probe/fwserial_remove are effectively serialized by the
- * fwserial_list_mutex. This is necessary because the addition of the first peer
- * for a given fw_card will trigger the creation of the fw_serial for that
- * fw_card, which must not simultaneously contend with the removal of the
- * last peer for a given fw_card triggering the destruction of the same
- * fw_serial for the same fw_card.
- */
-static int fwserial_probe(struct fw_unit *unit,
-			  const struct ieee1394_device_id *id)
-{
-	struct fw_serial *serial;
-	int err;
-
-	mutex_lock(&fwserial_list_mutex);
-	serial = fwserial_lookup(fw_parent_device(unit)->card);
-	if (!serial)
-		err = fwserial_create(unit);
-	else
-		err = fwserial_add_peer(serial, unit);
-	mutex_unlock(&fwserial_list_mutex);
-	return err;
-}
-
-/**
- * fwserial_remove: bus removal function for firewire 'serial' unit devices
- *
- * The corresponding 'peer' for this unit device is removed from the list of
- * peers for the associated fw_serial (which has a 1:1 correspondence with a
- * specific fw_card). If this is the last peer being removed, then trigger
- * the destruction of the underlying TTYs.
- */
-static void fwserial_remove(struct fw_unit *unit)
-{
-	struct fwtty_peer *peer = dev_get_drvdata(&unit->device);
-	struct fw_serial *serial = peer->serial;
-	int i;
-
-	mutex_lock(&fwserial_list_mutex);
-	fwserial_remove_peer(peer);
-
-	if (list_empty(&serial->peer_list)) {
-		/* unlink from the fwserial_list here */
-		list_del_rcu(&serial->list);
-
-		debugfs_remove_recursive(serial->debugfs);
-
-		for (i = 0; i < num_ttys; ++i)
-			fwserial_close_port(fwtty_driver, serial->ports[i]);
-		if (create_loop_dev)
-			fwserial_close_port(fwloop_driver, serial->ports[i]);
-		kref_put(&serial->kref, fwserial_destroy);
-	}
-	mutex_unlock(&fwserial_list_mutex);
-}
-
-/**
- * fwserial_update: bus update function for 'firewire' serial unit devices
- *
- * Updates the new node_id and bus generation for this peer. Note that locking
- * is unnecessary; but careful memory barrier usage is important to enforce the
- * load and store order of generation & node_id.
- *
- * The fw-core orders the write of node_id before generation in the parent
- * fw_device to ensure that a stale node_id cannot be used with a current
- * bus generation. So the generation value must be read before the node_id.
- *
- * In turn, this orders the write of node_id before generation in the peer to
- * also ensure a stale node_id cannot be used with a current bus generation.
- */
-static void fwserial_update(struct fw_unit *unit)
-{
-	struct fw_device *parent = fw_parent_device(unit);
-	struct fwtty_peer *peer = dev_get_drvdata(&unit->device);
-	int generation;
-
-	generation = parent->generation;
-	smp_rmb();
-	peer->node_id = parent->node_id;
-	smp_wmb();
-	peer->generation = generation;
-}
-
-static const struct ieee1394_device_id fwserial_id_table[] = {
-	{
-		.match_flags  = IEEE1394_MATCH_SPECIFIER_ID |
-				IEEE1394_MATCH_VERSION,
-		.specifier_id = LINUX_VENDOR_ID,
-		.version      = FWSERIAL_VERSION,
-	},
-	{ }
-};
-
-static struct fw_driver fwserial_driver = {
-	.driver = {
-		.owner  = THIS_MODULE,
-		.name   = KBUILD_MODNAME,
-		.bus    = &fw_bus_type,
-	},
-	.probe    = fwserial_probe,
-	.update   = fwserial_update,
-	.remove   = fwserial_remove,
-	.id_table = fwserial_id_table,
-};
-
-#define FW_UNIT_SPECIFIER(id)	((CSR_SPECIFIER_ID << 24) | (id))
-#define FW_UNIT_VERSION(ver)	((CSR_VERSION << 24) | (ver))
-#define FW_UNIT_ADDRESS(ofs)	(((CSR_OFFSET | CSR_DEPENDENT_INFO) << 24)  \
-				 | (((ofs) - CSR_REGISTER_BASE) >> 2))
-/* XXX: config ROM definitons could be improved with semi-automated offset
- * and length calculation
- */
-#define FW_ROM_LEN(quads)	((quads) << 16)
-#define FW_ROM_DESCRIPTOR(ofs)	(((CSR_LEAF | CSR_DESCRIPTOR) << 24) | (ofs))
-
-struct fwserial_unit_directory_data {
-	u32	len_crc;
-	u32	unit_specifier;
-	u32	unit_sw_version;
-	u32	unit_addr_offset;
-	u32	desc1_ofs;
-	u32	desc1_len_crc;
-	u32	desc1_data[5];
-} __packed;
-
-static struct fwserial_unit_directory_data fwserial_unit_directory_data = {
-	.len_crc = FW_ROM_LEN(4),
-	.unit_specifier = FW_UNIT_SPECIFIER(LINUX_VENDOR_ID),
-	.unit_sw_version = FW_UNIT_VERSION(FWSERIAL_VERSION),
-	.desc1_ofs = FW_ROM_DESCRIPTOR(1),
-	.desc1_len_crc = FW_ROM_LEN(5),
-	.desc1_data = {
-		0x00000000,			/*   type = text            */
-		0x00000000,			/*   enc = ASCII, lang EN   */
-		0x4c696e75,			/* 'Linux TTY'              */
-		0x78205454,
-		0x59000000,
-	},
-};
-
-static struct fw_descriptor fwserial_unit_directory = {
-	.length = sizeof(fwserial_unit_directory_data) / sizeof(u32),
-	.key    = (CSR_DIRECTORY | CSR_UNIT) << 24,
-	.data   = (u32 *)&fwserial_unit_directory_data,
-};
-
-/*
- * The management address is in the unit space region but above other known
- * address users (to keep wild writes from causing havoc)
- */
-static const struct fw_address_region fwserial_mgmt_addr_region = {
-	.start = CSR_REGISTER_BASE + 0x1e0000ULL,
-	.end = 0x1000000000000ULL,
-};
-
-static struct fw_address_handler fwserial_mgmt_addr_handler;
-
-/**
- * fwserial_handle_plug_req - handle VIRT_CABLE_PLUG request work
- * @work: ptr to peer->work
- *
- * Attempts to complete the VIRT_CABLE_PLUG handshake sequence for this peer.
- *
- * This checks for a collided request-- ie, that a VIRT_CABLE_PLUG request was
- * already sent to this peer. If so, the collision is resolved by comparing
- * guid values; the loser sends the plug response.
- *
- * Note: if an error prevents a response, don't do anything -- the
- * remote will timeout its request.
- */
-static void fwserial_handle_plug_req(struct work_struct *work)
-{
-	struct fwtty_peer *peer = to_peer(work, work);
-	struct virt_plug_params *plug_req = &peer->work_params.plug_req;
-	struct fwtty_port *port;
-	struct fwserial_mgmt_pkt *pkt;
-	int rcode;
-
-	pkt = kmalloc(sizeof(*pkt), GFP_KERNEL);
-	if (!pkt)
-		return;
-
-	port = fwserial_find_port(peer);
-
-	spin_lock_bh(&peer->lock);
-
-	switch (peer->state) {
-	case FWPS_NOT_ATTACHED:
-		if (!port) {
-			fwtty_err(&peer->unit, "no more ports avail\n");
-			fill_plug_rsp_nack(pkt);
-		} else {
-			peer->port = port;
-			fill_plug_rsp_ok(pkt, peer->port);
-			peer_set_state(peer, FWPS_PLUG_RESPONDING);
-			/* don't release claimed port */
-			port = NULL;
-		}
-		break;
-
-	case FWPS_PLUG_PENDING:
-		if (peer->serial->card->guid > peer->guid)
-			goto cleanup;
-
-		/* We lost - hijack the already-claimed port and send ok */
-		del_timer(&peer->timer);
-		fill_plug_rsp_ok(pkt, peer->port);
-		peer_set_state(peer, FWPS_PLUG_RESPONDING);
-		break;
-
-	default:
-		fill_plug_rsp_nack(pkt);
-	}
-
-	spin_unlock_bh(&peer->lock);
-	if (port)
-		fwserial_release_port(port, false);
-
-	rcode = fwserial_send_mgmt_sync(peer, pkt);
-
-	spin_lock_bh(&peer->lock);
-	if (peer->state == FWPS_PLUG_RESPONDING) {
-		if (rcode == RCODE_COMPLETE) {
-			struct fwtty_port *tmp = peer->port;
-
-			fwserial_virt_plug_complete(peer, plug_req);
-			spin_unlock_bh(&peer->lock);
-
-			fwtty_write_port_status(tmp);
-			spin_lock_bh(&peer->lock);
-		} else {
-			fwtty_err(&peer->unit, "PLUG_RSP error (%d)\n", rcode);
-			port = peer_revert_state(peer);
-		}
-	}
-cleanup:
-	spin_unlock_bh(&peer->lock);
-	if (port)
-		fwserial_release_port(port, false);
-	kfree(pkt);
-}
-
-static void fwserial_handle_unplug_req(struct work_struct *work)
-{
-	struct fwtty_peer *peer = to_peer(work, work);
-	struct fwtty_port *port = NULL;
-	struct fwserial_mgmt_pkt *pkt;
-	int rcode;
-
-	pkt = kmalloc(sizeof(*pkt), GFP_KERNEL);
-	if (!pkt)
-		return;
-
-	spin_lock_bh(&peer->lock);
-
-	switch (peer->state) {
-	case FWPS_ATTACHED:
-		fill_unplug_rsp_ok(pkt);
-		peer_set_state(peer, FWPS_UNPLUG_RESPONDING);
-		break;
-
-	case FWPS_UNPLUG_PENDING:
-		if (peer->serial->card->guid > peer->guid)
-			goto cleanup;
-
-		/* We lost - send unplug rsp */
-		del_timer(&peer->timer);
-		fill_unplug_rsp_ok(pkt);
-		peer_set_state(peer, FWPS_UNPLUG_RESPONDING);
-		break;
-
-	default:
-		fill_unplug_rsp_nack(pkt);
-	}
-
-	spin_unlock_bh(&peer->lock);
-
-	rcode = fwserial_send_mgmt_sync(peer, pkt);
-
-	spin_lock_bh(&peer->lock);
-	if (peer->state == FWPS_UNPLUG_RESPONDING) {
-		if (rcode != RCODE_COMPLETE)
-			fwtty_err(&peer->unit, "UNPLUG_RSP error (%d)\n",
-				  rcode);
-		port = peer_revert_state(peer);
-	}
-cleanup:
-	spin_unlock_bh(&peer->lock);
-	if (port)
-		fwserial_release_port(port, true);
-	kfree(pkt);
-}
-
-static int fwserial_parse_mgmt_write(struct fwtty_peer *peer,
-				     struct fwserial_mgmt_pkt *pkt,
-				     unsigned long long addr,
-				     size_t len)
-{
-	struct fwtty_port *port = NULL;
-	bool reset = false;
-	int rcode;
-
-	if (addr != fwserial_mgmt_addr_handler.offset || len < sizeof(pkt->hdr))
-		return RCODE_ADDRESS_ERROR;
-
-	if (len != be16_to_cpu(pkt->hdr.len) ||
-	    len != mgmt_pkt_expected_len(pkt->hdr.code))
-		return RCODE_DATA_ERROR;
-
-	spin_lock_bh(&peer->lock);
-	if (peer->state == FWPS_GONE) {
-		/*
-		 * This should never happen - it would mean that the
-		 * remote unit that just wrote this transaction was
-		 * already removed from the bus -- and the removal was
-		 * processed before we rec'd this transaction
-		 */
-		fwtty_err(&peer->unit, "peer already removed\n");
-		spin_unlock_bh(&peer->lock);
-		return RCODE_ADDRESS_ERROR;
-	}
-
-	rcode = RCODE_COMPLETE;
-
-	fwtty_dbg(&peer->unit, "mgmt: hdr.code: %04hx\n", pkt->hdr.code);
-
-	switch (be16_to_cpu(pkt->hdr.code) & FWSC_CODE_MASK) {
-	case FWSC_VIRT_CABLE_PLUG:
-		if (work_pending(&peer->work)) {
-			fwtty_err(&peer->unit, "plug req: busy\n");
-			rcode = RCODE_CONFLICT_ERROR;
-
-		} else {
-			peer->work_params.plug_req = pkt->plug_req;
-			peer->workfn = fwserial_handle_plug_req;
-			queue_work(system_unbound_wq, &peer->work);
-		}
-		break;
-
-	case FWSC_VIRT_CABLE_PLUG_RSP:
-		if (peer->state != FWPS_PLUG_PENDING) {
-			rcode = RCODE_CONFLICT_ERROR;
-
-		} else if (be16_to_cpu(pkt->hdr.code) & FWSC_RSP_NACK) {
-			fwtty_notice(&peer->unit, "NACK plug rsp\n");
-			port = peer_revert_state(peer);
-
-		} else {
-			struct fwtty_port *tmp = peer->port;
-
-			fwserial_virt_plug_complete(peer, &pkt->plug_rsp);
-			spin_unlock_bh(&peer->lock);
-
-			fwtty_write_port_status(tmp);
-			spin_lock_bh(&peer->lock);
-		}
-		break;
-
-	case FWSC_VIRT_CABLE_UNPLUG:
-		if (work_pending(&peer->work)) {
-			fwtty_err(&peer->unit, "unplug req: busy\n");
-			rcode = RCODE_CONFLICT_ERROR;
-		} else {
-			peer->workfn = fwserial_handle_unplug_req;
-			queue_work(system_unbound_wq, &peer->work);
-		}
-		break;
-
-	case FWSC_VIRT_CABLE_UNPLUG_RSP:
-		if (peer->state != FWPS_UNPLUG_PENDING) {
-			rcode = RCODE_CONFLICT_ERROR;
-		} else {
-			if (be16_to_cpu(pkt->hdr.code) & FWSC_RSP_NACK)
-				fwtty_notice(&peer->unit, "NACK unplug?\n");
-			port = peer_revert_state(peer);
-			reset = true;
-		}
-		break;
-
-	default:
-		fwtty_err(&peer->unit, "unknown mgmt code %d\n",
-			  be16_to_cpu(pkt->hdr.code));
-		rcode = RCODE_DATA_ERROR;
-	}
-	spin_unlock_bh(&peer->lock);
-
-	if (port)
-		fwserial_release_port(port, reset);
-
-	return rcode;
-}
-
-/**
- * fwserial_mgmt_handler: bus address handler for mgmt requests
- * @parameters: fw_address_callback_t as specified by firewire core interface
- *
- * This handler is responsible for handling virtual cable requests from remotes
- * for all cards.
- */
-static void fwserial_mgmt_handler(struct fw_card *card,
-				  struct fw_request *request,
-				  int tcode, int destination, int source,
-				  int generation,
-				  unsigned long long addr,
-				  void *data, size_t len,
-				  void *callback_data)
-{
-	struct fwserial_mgmt_pkt *pkt = data;
-	struct fwtty_peer *peer;
-	int rcode;
-
-	rcu_read_lock();
-	peer = __fwserial_peer_by_node_id(card, generation, source);
-	if (!peer) {
-		fwtty_dbg(card, "peer(%d:%x) not found\n", generation, source);
-		__dump_peer_list(card);
-		rcode = RCODE_CONFLICT_ERROR;
-
-	} else {
-		switch (tcode) {
-		case TCODE_WRITE_BLOCK_REQUEST:
-			rcode = fwserial_parse_mgmt_write(peer, pkt, addr, len);
-			break;
-
-		default:
-			rcode = RCODE_TYPE_ERROR;
-		}
-	}
-
-	rcu_read_unlock();
-	fw_send_response(card, request, rcode);
-}
-
-static int __init fwserial_init(void)
-{
-	int err, num_loops = !!(create_loop_dev);
-
-	/* XXX: placeholder for a "firewire" debugfs node */
-	fwserial_debugfs = debugfs_create_dir(KBUILD_MODNAME, NULL);
-
-	/* num_ttys/num_ports must not be set above the static alloc avail */
-	if (num_ttys + num_loops > MAX_CARD_PORTS)
-		num_ttys = MAX_CARD_PORTS - num_loops;
-
-	num_ports = num_ttys + num_loops;
-
-	fwtty_driver = tty_alloc_driver(MAX_TOTAL_PORTS, TTY_DRIVER_REAL_RAW
-					| TTY_DRIVER_DYNAMIC_DEV);
-	if (IS_ERR(fwtty_driver)) {
-		err = PTR_ERR(fwtty_driver);
-		goto remove_debugfs;
-	}
-
-	fwtty_driver->driver_name	= KBUILD_MODNAME;
-	fwtty_driver->name		= tty_dev_name;
-	fwtty_driver->major		= 0;
-	fwtty_driver->minor_start	= 0;
-	fwtty_driver->type		= TTY_DRIVER_TYPE_SERIAL;
-	fwtty_driver->subtype		= SERIAL_TYPE_NORMAL;
-	fwtty_driver->init_termios	    = tty_std_termios;
-	fwtty_driver->init_termios.c_cflag  |= CLOCAL;
-	tty_set_operations(fwtty_driver, &fwtty_ops);
-
-	err = tty_register_driver(fwtty_driver);
-	if (err) {
-		pr_err("register tty driver failed (%d)\n", err);
-		goto put_tty;
-	}
-
-	if (create_loop_dev) {
-		fwloop_driver = tty_alloc_driver(MAX_TOTAL_PORTS / num_ports,
-						 TTY_DRIVER_REAL_RAW
-						 | TTY_DRIVER_DYNAMIC_DEV);
-		if (IS_ERR(fwloop_driver)) {
-			err = PTR_ERR(fwloop_driver);
-			goto unregister_driver;
-		}
-
-		fwloop_driver->driver_name	= KBUILD_MODNAME "_loop";
-		fwloop_driver->name		= loop_dev_name;
-		fwloop_driver->major		= 0;
-		fwloop_driver->minor_start	= 0;
-		fwloop_driver->type		= TTY_DRIVER_TYPE_SERIAL;
-		fwloop_driver->subtype		= SERIAL_TYPE_NORMAL;
-		fwloop_driver->init_termios	    = tty_std_termios;
-		fwloop_driver->init_termios.c_cflag  |= CLOCAL;
-		tty_set_operations(fwloop_driver, &fwloop_ops);
-
-		err = tty_register_driver(fwloop_driver);
-		if (err) {
-			pr_err("register loop driver failed (%d)\n", err);
-			goto put_loop;
-		}
-	}
-
-	fwtty_txn_cache = kmem_cache_create("fwtty_txn_cache",
-					    sizeof(struct fwtty_transaction),
-					    0, 0, fwtty_txn_constructor);
-	if (!fwtty_txn_cache) {
-		err = -ENOMEM;
-		goto unregister_loop;
-	}
-
-	/*
-	 * Ideally, this address handler would be registered per local node
-	 * (rather than the same handler for all local nodes). However,
-	 * since the firewire core requires the config rom descriptor *before*
-	 * the local unit device(s) are created, a single management handler
-	 * must suffice for all local serial units.
-	 */
-	fwserial_mgmt_addr_handler.length = sizeof(struct fwserial_mgmt_pkt);
-	fwserial_mgmt_addr_handler.address_callback = fwserial_mgmt_handler;
-
-	err = fw_core_add_address_handler(&fwserial_mgmt_addr_handler,
-					  &fwserial_mgmt_addr_region);
-	if (err) {
-		pr_err("add management handler failed (%d)\n", err);
-		goto destroy_cache;
-	}
-
-	fwserial_unit_directory_data.unit_addr_offset =
-		FW_UNIT_ADDRESS(fwserial_mgmt_addr_handler.offset);
-	err = fw_core_add_descriptor(&fwserial_unit_directory);
-	if (err) {
-		pr_err("add unit descriptor failed (%d)\n", err);
-		goto remove_handler;
-	}
-
-	err = driver_register(&fwserial_driver.driver);
-	if (err) {
-		pr_err("register fwserial driver failed (%d)\n", err);
-		goto remove_descriptor;
-	}
-
-	return 0;
-
-remove_descriptor:
-	fw_core_remove_descriptor(&fwserial_unit_directory);
-remove_handler:
-	fw_core_remove_address_handler(&fwserial_mgmt_addr_handler);
-destroy_cache:
-	kmem_cache_destroy(fwtty_txn_cache);
-unregister_loop:
-	if (create_loop_dev)
-		tty_unregister_driver(fwloop_driver);
-put_loop:
-	if (create_loop_dev)
-		put_tty_driver(fwloop_driver);
-unregister_driver:
-	tty_unregister_driver(fwtty_driver);
-put_tty:
-	put_tty_driver(fwtty_driver);
-remove_debugfs:
-	debugfs_remove_recursive(fwserial_debugfs);
-
-	return err;
-}
-
-static void __exit fwserial_exit(void)
-{
-	driver_unregister(&fwserial_driver.driver);
-	fw_core_remove_descriptor(&fwserial_unit_directory);
-	fw_core_remove_address_handler(&fwserial_mgmt_addr_handler);
-	kmem_cache_destroy(fwtty_txn_cache);
-	if (create_loop_dev) {
-		tty_unregister_driver(fwloop_driver);
-		put_tty_driver(fwloop_driver);
-	}
-	tty_unregister_driver(fwtty_driver);
-	put_tty_driver(fwtty_driver);
-	debugfs_remove_recursive(fwserial_debugfs);
-}
-
-module_init(fwserial_init);
-module_exit(fwserial_exit);
-
-MODULE_AUTHOR("Peter Hurley (peter@hurleysoftware.com)");
-MODULE_DESCRIPTION("FireWire Serial TTY Driver");
-MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(ieee1394, fwserial_id_table);
-MODULE_PARM_DESC(ttys, "Number of ttys to create for each local firewire node");
-MODULE_PARM_DESC(auto, "Auto-connect a tty to each firewire node discovered");
-MODULE_PARM_DESC(loop, "Create a loopback device, fwloop<n>, with ttys");
diff --git a/drivers/staging/fwserial/fwserial.h b/drivers/staging/fwserial/fwserial.h
deleted file mode 100644
index 787aa4f3a41b..000000000000
--- a/drivers/staging/fwserial/fwserial.h
+++ /dev/null
@@ -1,369 +0,0 @@
-#ifndef _FIREWIRE_FWSERIAL_H
-#define _FIREWIRE_FWSERIAL_H
-
-#include <linux/kernel.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/list.h>
-#include <linux/firewire.h>
-#include <linux/firewire-constants.h>
-#include <linux/spinlock.h>
-#include <linux/rcupdate.h>
-#include <linux/mutex.h>
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-#include <linux/module.h>
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-
-#include "dma_fifo.h"
-
-#ifdef FWTTY_PROFILING
-#define DISTRIBUTION_MAX_SIZE     8192
-#define DISTRIBUTION_MAX_INDEX    (ilog2(DISTRIBUTION_MAX_SIZE) + 1)
-static inline void fwtty_profile_data(unsigned stat[], unsigned val)
-{
-	int n = (val) ? min(ilog2(val) + 1, DISTRIBUTION_MAX_INDEX) : 0;
-	++stat[n];
-}
-#else
-#define DISTRIBUTION_MAX_INDEX    0
-#define fwtty_profile_data(st, n)
-#endif
-
-/* Parameters for both VIRT_CABLE_PLUG & VIRT_CABLE_PLUG_RSP mgmt codes */
-struct virt_plug_params {
-	__be32  status_hi;
-	__be32  status_lo;
-	__be32	fifo_hi;
-	__be32	fifo_lo;
-	__be32	fifo_len;
-};
-
-struct peer_work_params {
-	union {
-		struct virt_plug_params plug_req;
-	};
-};
-
-/**
- * fwtty_peer: structure representing local & remote unit devices
- * @unit: unit child device of fw_device node
- * @serial: back pointer to associated fw_serial aggregate
- * @guid: unique 64-bit guid for this unit device
- * @generation: most recent bus generation
- * @node_id: most recent node_id
- * @speed: link speed of peer (0 = S100, 2 = S400, ... 5 = S3200)
- * @mgmt_addr: bus addr region to write mgmt packets to
- * @status_addr: bus addr register to write line status to
- * @fifo_addr: bus addr region to write serial output to
- * @fifo_len:  max length for single write to fifo_addr
- * @list: link for insertion into fw_serial's peer_list
- * @rcu: for deferring peer reclamation
- * @lock: spinlock to synchonize changes to state & port fields
- * @work: only one work item can be queued at any one time
- *        Note: pending work is canceled prior to removal, so this
- *        peer is valid for at least the lifetime of the work function
- * @work_params: parameter block for work functions
- * @timer: timer for resetting peer state if remote request times out
- * @state: current state
- * @connect: work item for auto-connecting
- * @connect_retries: # of connections already attempted
- * @port: associated tty_port (usable if state == FWSC_ATTACHED)
- */
-struct fwtty_peer {
-	struct fw_unit		*unit;
-	struct fw_serial	*serial;
-	u64			guid;
-	int			generation;
-	int			node_id;
-	unsigned		speed;
-	int			max_payload;
-	u64			mgmt_addr;
-
-	/* these are usable only if state == FWSC_ATTACHED */
-	u64			status_addr;
-	u64			fifo_addr;
-	int			fifo_len;
-
-	struct list_head	list;
-	struct rcu_head		rcu;
-
-	spinlock_t		lock;
-	work_func_t		workfn;
-	struct work_struct	work;
-	struct peer_work_params work_params;
-	struct timer_list	timer;
-	int			state;
-	struct delayed_work	connect;
-	int			connect_retries;
-
-	struct fwtty_port	*port;
-};
-
-#define to_peer(ptr, field)	(container_of(ptr, struct fwtty_peer, field))
-
-/* state values for fwtty_peer.state field */
-enum fwtty_peer_state {
-	FWPS_GONE,
-	FWPS_NOT_ATTACHED,
-	FWPS_ATTACHED,
-	FWPS_PLUG_PENDING,
-	FWPS_PLUG_RESPONDING,
-	FWPS_UNPLUG_PENDING,
-	FWPS_UNPLUG_RESPONDING,
-
-	FWPS_NO_MGMT_ADDR = -1,
-};
-
-#define CONNECT_RETRY_DELAY	HZ
-#define MAX_CONNECT_RETRIES	10
-
-/* must be holding peer lock for these state funclets */
-static inline void peer_set_state(struct fwtty_peer *peer, int new)
-{
-	peer->state = new;
-}
-
-static inline struct fwtty_port *peer_revert_state(struct fwtty_peer *peer)
-{
-	struct fwtty_port *port = peer->port;
-
-	peer->port = NULL;
-	peer_set_state(peer, FWPS_NOT_ATTACHED);
-	return port;
-}
-
-struct fwserial_mgmt_pkt {
-	struct {
-		__be16		len;
-		__be16		code;
-	} hdr;
-	union {
-		struct virt_plug_params plug_req;
-		struct virt_plug_params plug_rsp;
-	};
-} __packed;
-
-/* fwserial_mgmt_packet codes */
-#define FWSC_RSP_OK			0x0000
-#define FWSC_RSP_NACK			0x8000
-#define FWSC_CODE_MASK			0x0fff
-
-#define FWSC_VIRT_CABLE_PLUG		1
-#define FWSC_VIRT_CABLE_UNPLUG		2
-#define FWSC_VIRT_CABLE_PLUG_RSP	3
-#define FWSC_VIRT_CABLE_UNPLUG_RSP	4
-
-/* 1 min. plug timeout -- suitable for userland authorization */
-#define VIRT_CABLE_PLUG_TIMEOUT		(60 * HZ)
-
-struct stats {
-	unsigned	xchars;
-	unsigned	dropped;
-	unsigned	tx_stall;
-	unsigned	fifo_errs;
-	unsigned	sent;
-	unsigned	lost;
-	unsigned	throttled;
-	unsigned	reads[DISTRIBUTION_MAX_INDEX + 1];
-	unsigned	writes[DISTRIBUTION_MAX_INDEX + 1];
-	unsigned	txns[DISTRIBUTION_MAX_INDEX + 1];
-	unsigned	unthrottle[DISTRIBUTION_MAX_INDEX + 1];
-};
-
-struct fwconsole_ops {
-	void (*notify)(int code, void *data);
-	void (*stats)(struct stats *stats, void *data);
-	void (*proc_show)(struct seq_file *m, void *data);
-};
-
-/* codes for console ops notify */
-#define FWCON_NOTIFY_ATTACH		1
-#define FWCON_NOTIFY_DETACH		2
-
-/**
- * fwtty_port: structure used to track/represent underlying tty_port
- * @port: underlying tty_port
- * @device: tty device
- * @index: index into port_table for this particular port
- *    note: minor = index + minor_start assigned by tty_alloc_driver()
- * @serial: back pointer to the containing fw_serial
- * @rx_handler: bus address handler for unique addr region used by remotes
- *              to communicate with this port. Every port uses
- *		fwtty_port_handler() for per port transactions.
- * @fwcon_ops: ops for attached fw_console (if any)
- * @con_data: private data for fw_console
- * @wait_tx: waitqueue for sleeping until writer/drain completes tx
- * @emit_breaks: delayed work responsible for generating breaks when the
- *               break line status is active
- * @cps : characters per second computed from the termios settings
- * @break_last: timestamp in jiffies from last emit_breaks
- * @hangup: work responsible for HUPing when carrier is dropped/lost
- * @mstatus: loose virtualization of LSR/MSR
- *         bits 15..0  correspond to TIOCM_* bits
- *         bits 19..16 reserved for mctrl
- *         bit 20      OOB_TX_THROTTLE
- *	   bits 23..21 reserved
- *         bits 31..24 correspond to UART_LSR_* bits
- * @lock: spinlock for protecting concurrent access to fields below it
- * @mctrl: loose virtualization of MCR
- *         bits 15..0  correspond to TIOCM_* bits
- *         bit 16      OOB_RX_THROTTLE
- *         bits 19..17 reserved
- *	   bits 31..20 reserved for mstatus
- * @drain: delayed work scheduled to ensure that writes are flushed.
- *         The work can race with the writer but concurrent sending is
- *         prevented with the IN_TX flag. Scheduled under lock to
- *         limit scheduling when fifo has just been drained.
- * @tx_fifo: fifo used to store & block-up writes for dma to remote
- * @max_payload: max bytes transmissible per dma (based on peer's max_payload)
- * @status_mask: UART_LSR_* bitmask significant to rx (based on termios)
- * @ignore_mask: UART_LSR_* bitmask of states to ignore (also based on termios)
- * @break_ctl: if set, port is 'sending break' to remote
- * @write_only: self-explanatory
- * @overrun: previous rx was lost (partially or completely)
- * @loopback: if set, port is in loopback mode
- * @flags: atomic bit flags
- *         bit 0: IN_TX - gate to allow only one cpu to send from the dma fifo
- *                        at a time.
- *         bit 1: STOP_TX - force tx to exit while sending
- * @peer: rcu-pointer to associated fwtty_peer (if attached)
- *        NULL if no peer attached
- * @icount: predefined statistics reported by the TIOCGICOUNT ioctl
- * @stats: additional statistics reported in /proc/tty/driver/firewire_serial
- */
-struct fwtty_port {
-	struct tty_port		   port;
-	struct device		   *device;
-	unsigned		   index;
-	struct fw_serial	   *serial;
-	struct fw_address_handler  rx_handler;
-
-	struct fwconsole_ops	   *fwcon_ops;
-	void			   *con_data;
-
-	wait_queue_head_t	   wait_tx;
-	struct delayed_work	   emit_breaks;
-	unsigned		   cps;
-	unsigned long		   break_last;
-
-	struct work_struct	   hangup;
-
-	unsigned		   mstatus;
-
-	spinlock_t		   lock;
-	unsigned		   mctrl;
-	struct delayed_work	   drain;
-	struct dma_fifo		   tx_fifo;
-	int			   max_payload;
-	unsigned		   status_mask;
-	unsigned		   ignore_mask;
-	unsigned		   break_ctl:1,
-				   write_only:1,
-				   overrun:1,
-				   loopback:1;
-	unsigned long		   flags;
-
-	struct fwtty_peer __rcu	   *peer;
-
-	struct async_icount	   icount;
-	struct stats		   stats;
-};
-
-#define to_port(ptr, field)	(container_of(ptr, struct fwtty_port, field))
-
-/* bit #s for flags field */
-#define IN_TX                      0
-#define STOP_TX                    1
-
-/* bitmasks for special mctrl/mstatus bits */
-#define OOB_RX_THROTTLE   0x00010000
-#define MCTRL_RSRVD       0x000e0000
-#define OOB_TX_THROTTLE   0x00100000
-#define MSTATUS_RSRVD     0x00e00000
-
-#define MCTRL_MASK        (TIOCM_DTR | TIOCM_RTS | TIOCM_OUT1 | TIOCM_OUT2 | \
-			   TIOCM_LOOP | OOB_RX_THROTTLE | MCTRL_RSRVD)
-
-/* XXX even every 1/50th secs. may be unnecessarily accurate */
-/* delay in jiffies between brk emits */
-#define FREQ_BREAKS        (HZ / 50)
-
-/* Ports are allocated in blocks of num_ports for each fw_card */
-#define MAX_CARD_PORTS           CONFIG_FWTTY_MAX_CARD_PORTS
-#define MAX_TOTAL_PORTS          CONFIG_FWTTY_MAX_TOTAL_PORTS
-
-/* tuning parameters */
-#define FWTTY_PORT_TXFIFO_LEN	4096
-#define FWTTY_PORT_MAX_PEND_DMA    8    /* costs a cache line per pend */
-#define DRAIN_THRESHOLD         1024
-#define MAX_ASYNC_PAYLOAD       4096    /* ohci-defined limit          */
-#define WRITER_MINIMUM           128
-/* TODO: how to set watermark to AR context size? see fwtty_rx() */
-#define HIGH_WATERMARK         32768	/* AR context is 32K	       */
-
-/*
- * Size of bus addr region above 4GB used per port as the recv addr
- * - must be at least as big as the MAX_ASYNC_PAYLOAD
- */
-#define FWTTY_PORT_RXFIFO_LEN	MAX_ASYNC_PAYLOAD
-
-/**
- * fw_serial: aggregate used to associate tty ports with specific fw_card
- * @card: fw_card associated with this fw_serial device (1:1 association)
- * @kref: reference-counted multi-port management allows delayed destroy
- * @self: local unit device as 'peer'. Not valid until local unit device
- *         is enumerated.
- * @list: link for insertion into fwserial_list
- * @peer_list: list of local & remote unit devices attached to this card
- * @ports: fixed array of tty_ports provided by this serial device
- */
-struct fw_serial {
-	struct fw_card	  *card;
-	struct kref	  kref;
-
-	struct dentry	  *debugfs;
-	struct fwtty_peer *self;
-
-	struct list_head  list;
-	struct list_head  peer_list;
-
-	struct fwtty_port *ports[MAX_CARD_PORTS];
-};
-
-#define to_serial(ptr, field)	(container_of(ptr, struct fw_serial, field))
-
-#define TTY_DEV_NAME		    "fwtty"	/* ttyFW was taken           */
-static const char tty_dev_name[] =  TTY_DEV_NAME;
-static const char loop_dev_name[] = "fwloop";
-
-extern struct tty_driver *fwtty_driver;
-
-struct fwtty_port *fwtty_port_get(unsigned index);
-void fwtty_port_put(struct fwtty_port *port);
-
-static inline void fwtty_bind_console(struct fwtty_port *port,
-				      struct fwconsole_ops *fwcon_ops,
-				      void *data)
-{
-	port->con_data = data;
-	port->fwcon_ops = fwcon_ops;
-}
-
-/*
- * Returns the max send async payload size in bytes based on the unit device
- * link speed. Self-limiting asynchronous bandwidth (via reducing the payload)
- * is not necessary and does not work, because
- *   1) asynchronous traffic will absorb all available bandwidth (less that
- *	being used for isochronous traffic)
- *   2) isochronous arbitration always wins.
- */
-static inline int link_speed_to_max_payload(unsigned speed)
-{
-	/* Max async payload is 4096 - see IEEE 1394-2008 tables 6-4, 16-18 */
-	return min(512 << speed, 4096);
-}
-
-#endif /* _FIREWIRE_FWSERIAL_H */
diff --git a/drivers/staging/gdm724x/Kconfig b/drivers/staging/gdm724x/Kconfig
deleted file mode 100644
index 0a1f090bbf38..000000000000
--- a/drivers/staging/gdm724x/Kconfig
+++ /dev/null
@@ -1,15 +0,0 @@
-#
-# GCT GDM724x LTE driver configuration
-#
-
-config LTE_GDM724X
-	tristate "GCT GDM724x LTE support"
-	depends on NET && USB && TTY && m
-	help
-	  This driver supports GCT GDM724x LTE chip based USB modem devices.
-	  It exposes 4 network devices to be used per PDN and 2 tty devices to be
-	  used for AT commands and DM monitoring applications.
-	  The modules will be called gdmulte.ko and gdmtty.ko
-
-	  GCT-ATCx can be used for AT Commands
-	  GCT-DMx can be used for LTE protocol monitoring
diff --git a/drivers/staging/gdm724x/Makefile b/drivers/staging/gdm724x/Makefile
deleted file mode 100644
index ba7f11a6a097..000000000000
--- a/drivers/staging/gdm724x/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-obj-$(CONFIG_LTE_GDM724X) := gdmulte.o
-gdmulte-y += gdm_lte.o netlink_k.o
-gdmulte-y += gdm_usb.o gdm_endian.o
-
-obj-$(CONFIG_LTE_GDM724X) += gdmtty.o
-gdmtty-y := gdm_tty.o gdm_mux.o
-
diff --git a/drivers/staging/gdm724x/TODO b/drivers/staging/gdm724x/TODO
deleted file mode 100644
index b2b571ecb063..000000000000
--- a/drivers/staging/gdm724x/TODO
+++ /dev/null
@@ -1,16 +0,0 @@
-TODO:
-- Clean up coding style to meet kernel standard. (80 line limit, netdev_err)
-- Remove test for host endian
-- Remove confusing macros (endian, hci_send, sdu_send, rcv_with_cb)
-- Fixes for every instances of function returning -1
-- Check for skb->len in gdm_lte_emulate_arp()
-- Use ALIGN() macro for dummy_cnt in up_to_host()
-- Error handling in init_usb()
-- Explain reason for multiples of 512 bytes in alloc_tx_struct()
-- Review use of atomic allocation for tx structs
-- No error checking for alloc_tx_struct in do_tx()
-- fix up static tty port allocation to be dynamic
-
-Patches to:
-	Jonathan Kim <jonathankim@gctsemi.com>
-	Dean ahn <deanahn@gctsemi.com>
diff --git a/drivers/staging/gdm724x/gdm_endian.c b/drivers/staging/gdm724x/gdm_endian.c
deleted file mode 100644
index d7144e7afa32..000000000000
--- a/drivers/staging/gdm724x/gdm_endian.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include "gdm_endian.h"
-
-void gdm_set_endian(struct gdm_endian *ed, u8 dev_endian)
-{
-	if (dev_endian == ENDIANNESS_BIG)
-		ed->dev_ed = ENDIANNESS_BIG;
-	else
-		ed->dev_ed = ENDIANNESS_LITTLE;
-}
-
-u16 gdm_cpu_to_dev16(struct gdm_endian *ed, u16 x)
-{
-	if (ed->dev_ed == ENDIANNESS_LITTLE)
-		return cpu_to_le16(x);
-	else
-		return cpu_to_be16(x);
-}
-
-u16 gdm_dev16_to_cpu(struct gdm_endian *ed, u16 x)
-{
-	if (ed->dev_ed == ENDIANNESS_LITTLE)
-		return le16_to_cpu(x);
-	else
-		return be16_to_cpu(x);
-}
-
-u32 gdm_cpu_to_dev32(struct gdm_endian *ed, u32 x)
-{
-	if (ed->dev_ed == ENDIANNESS_LITTLE)
-		return cpu_to_le32(x);
-	else
-		return cpu_to_be32(x);
-}
-
-u32 gdm_dev32_to_cpu(struct gdm_endian *ed, u32 x)
-{
-	if (ed->dev_ed == ENDIANNESS_LITTLE)
-		return le32_to_cpu(x);
-	else
-		return be32_to_cpu(x);
-}
diff --git a/drivers/staging/gdm724x/gdm_endian.h b/drivers/staging/gdm724x/gdm_endian.h
deleted file mode 100644
index 6177870830e5..000000000000
--- a/drivers/staging/gdm724x/gdm_endian.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM_ENDIAN_H__
-#define __GDM_ENDIAN_H__
-
-#include <linux/types.h>
-
-enum {
-	ENDIANNESS_MIN = 0,
-	ENDIANNESS_UNKNOWN,
-	ENDIANNESS_LITTLE,
-	ENDIANNESS_BIG,
-	ENDIANNESS_MIDDLE,
-	ENDIANNESS_MAX
-};
-
-struct gdm_endian {
-	u8 dev_ed;
-};
-
-void gdm_set_endian(struct gdm_endian *ed, u8 dev_endian);
-u16 gdm_cpu_to_dev16(struct gdm_endian *ed, u16 x);
-u16 gdm_dev16_to_cpu(struct gdm_endian *ed, u16 x);
-u32 gdm_cpu_to_dev32(struct gdm_endian *ed, u32 x);
-u32 gdm_dev32_to_cpu(struct gdm_endian *ed, u32 x);
-
-#endif /*__GDM_ENDIAN_H__*/
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
deleted file mode 100644
index a8d2cffb411c..000000000000
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ /dev/null
@@ -1,947 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/etherdevice.h>
-#include <linux/ip.h>
-#include <linux/ipv6.h>
-#include <linux/udp.h>
-#include <linux/in.h>
-#include <linux/if_arp.h>
-#include <linux/if_ether.h>
-#include <linux/if_vlan.h>
-#include <linux/in6.h>
-#include <linux/tcp.h>
-#include <linux/icmp.h>
-#include <linux/icmpv6.h>
-#include <linux/uaccess.h>
-#include <net/ndisc.h>
-
-#include "gdm_lte.h"
-#include "netlink_k.h"
-#include "hci.h"
-#include "hci_packet.h"
-#include "gdm_endian.h"
-
-/*
- * Netlink protocol number
- */
-#define NETLINK_LTE 30
-
-/*
- * Default MTU Size
- */
-#define DEFAULT_MTU_SIZE 1500
-
-#define IP_VERSION_4	4
-#define IP_VERSION_6	6
-
-static struct {
-	int ref_cnt;
-	struct sock *sock;
-} lte_event;
-
-static struct device_type wwan_type = {
-	.name   = "wwan",
-};
-
-static int gdm_lte_open(struct net_device *dev)
-{
-	netif_start_queue(dev);
-	return 0;
-}
-
-static int gdm_lte_close(struct net_device *dev)
-{
-	netif_stop_queue(dev);
-	return 0;
-}
-
-static int gdm_lte_set_config(struct net_device *dev, struct ifmap *map)
-{
-	if (dev->flags & IFF_UP)
-		return -EBUSY;
-	return 0;
-}
-
-static void tx_complete(void *arg)
-{
-	struct nic *nic = arg;
-
-	if (netif_queue_stopped(nic->netdev))
-		netif_wake_queue(nic->netdev);
-}
-
-static int gdm_lte_rx(struct sk_buff *skb, struct nic *nic, int nic_type)
-{
-	int ret;
-
-	ret = netif_rx_ni(skb);
-	if (ret == NET_RX_DROP) {
-		nic->stats.rx_dropped++;
-	} else {
-		nic->stats.rx_packets++;
-		nic->stats.rx_bytes += skb->len + ETH_HLEN;
-	}
-
-	return 0;
-}
-
-static int gdm_lte_emulate_arp(struct sk_buff *skb_in, u32 nic_type)
-{
-	struct nic *nic = netdev_priv(skb_in->dev);
-	struct sk_buff *skb_out;
-	struct ethhdr eth;
-	struct vlan_ethhdr vlan_eth;
-	struct arphdr *arp_in;
-	struct arphdr *arp_out;
-	struct arpdata {
-		u8 ar_sha[ETH_ALEN];
-		u8 ar_sip[4];
-		u8 ar_tha[ETH_ALEN];
-		u8 ar_tip[4];
-	};
-	struct arpdata *arp_data_in;
-	struct arpdata *arp_data_out;
-	u8 arp_temp[60];
-	void *mac_header_data;
-	u32 mac_header_len;
-
-	/* Format the mac header so that it can be put to skb */
-	if (ntohs(((struct ethhdr *)skb_in->data)->h_proto) == ETH_P_8021Q) {
-		memcpy(&vlan_eth, skb_in->data, sizeof(struct vlan_ethhdr));
-		mac_header_data = &vlan_eth;
-		mac_header_len = VLAN_ETH_HLEN;
-	} else {
-		memcpy(&eth, skb_in->data, sizeof(struct ethhdr));
-		mac_header_data = &eth;
-		mac_header_len = ETH_HLEN;
-	}
-
-	/* Get the pointer of the original request */
-	arp_in = (struct arphdr *)(skb_in->data + mac_header_len);
-	arp_data_in = (struct arpdata *)(skb_in->data + mac_header_len +
-					sizeof(struct arphdr));
-
-	/* Get the pointer of the outgoing response */
-	arp_out = (struct arphdr *)arp_temp;
-	arp_data_out = (struct arpdata *)(arp_temp + sizeof(struct arphdr));
-
-	/* Copy the arp header */
-	memcpy(arp_out, arp_in, sizeof(struct arphdr));
-	arp_out->ar_op = htons(ARPOP_REPLY);
-
-	/* Copy the arp payload: based on 2 bytes of mac and fill the IP */
-	arp_data_out->ar_sha[0] = arp_data_in->ar_sha[0];
-	arp_data_out->ar_sha[1] = arp_data_in->ar_sha[1];
-	memcpy(&arp_data_out->ar_sha[2], &arp_data_in->ar_tip[0], 4);
-	memcpy(&arp_data_out->ar_sip[0], &arp_data_in->ar_tip[0], 4);
-	memcpy(&arp_data_out->ar_tha[0], &arp_data_in->ar_sha[0], 6);
-	memcpy(&arp_data_out->ar_tip[0], &arp_data_in->ar_sip[0], 4);
-
-	/* Fill the destination mac with source mac of the received packet */
-	memcpy(mac_header_data, mac_header_data + ETH_ALEN, ETH_ALEN);
-	/* Fill the source mac with nic's source mac */
-	memcpy(mac_header_data + ETH_ALEN, nic->src_mac_addr, ETH_ALEN);
-
-	/* Alloc skb and reserve align */
-	skb_out = dev_alloc_skb(skb_in->len);
-	if (!skb_out)
-		return -ENOMEM;
-	skb_reserve(skb_out, NET_IP_ALIGN);
-
-	memcpy(skb_put(skb_out, mac_header_len), mac_header_data,
-		mac_header_len);
-	memcpy(skb_put(skb_out, sizeof(struct arphdr)), arp_out,
-		sizeof(struct arphdr));
-	memcpy(skb_put(skb_out, sizeof(struct arpdata)), arp_data_out,
-		sizeof(struct arpdata));
-
-	skb_out->protocol = ((struct ethhdr *)mac_header_data)->h_proto;
-	skb_out->dev = skb_in->dev;
-	skb_reset_mac_header(skb_out);
-	skb_pull(skb_out, ETH_HLEN);
-
-	gdm_lte_rx(skb_out, nic, nic_type);
-
-	return 0;
-}
-
-static int icmp6_checksum(struct ipv6hdr *ipv6, u16 *ptr, int len)
-{
-	unsigned short *w = ptr;
-	int sum = 0;
-	int i;
-
-	union {
-		struct {
-			u8 ph_src[16];
-			u8 ph_dst[16];
-			u32 ph_len;
-			u8 ph_zero[3];
-			u8 ph_nxt;
-		} ph __packed;
-		u16 pa[20];
-	} pseudo_header;
-
-	memset(&pseudo_header, 0, sizeof(pseudo_header));
-	memcpy(&pseudo_header.ph.ph_src, &ipv6->saddr.in6_u.u6_addr8, 16);
-	memcpy(&pseudo_header.ph.ph_dst, &ipv6->daddr.in6_u.u6_addr8, 16);
-	pseudo_header.ph.ph_len = ipv6->payload_len;
-	pseudo_header.ph.ph_nxt = ipv6->nexthdr;
-
-	w = (u16 *)&pseudo_header;
-	for (i = 0; i < ARRAY_SIZE(pseudo_header.pa); i++)
-		sum += pseudo_header.pa[i];
-
-	w = ptr;
-	while (len > 1) {
-		sum += *w++;
-		len -= 2;
-	}
-
-	sum = (sum >> 16) + (sum & 0xFFFF);
-	sum += (sum >> 16);
-	sum = ~sum & 0xffff;
-
-	return sum;
-}
-
-static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
-{
-	struct nic *nic = netdev_priv(skb_in->dev);
-	struct sk_buff *skb_out;
-	struct ethhdr eth;
-	struct vlan_ethhdr vlan_eth;
-	struct neighbour_advertisement {
-		u8 target_address[16];
-		u8 type;
-		u8 length;
-		u8 link_layer_address[6];
-	};
-	struct neighbour_advertisement na;
-	struct neighbour_solicitation {
-		u8 target_address[16];
-	};
-	struct neighbour_solicitation *ns;
-	struct ipv6hdr *ipv6_in;
-	struct ipv6hdr ipv6_out;
-	struct icmp6hdr *icmp6_in;
-	struct icmp6hdr icmp6_out;
-
-	void *mac_header_data;
-	u32 mac_header_len;
-
-	/* Format the mac header so that it can be put to skb */
-	if (ntohs(((struct ethhdr *)skb_in->data)->h_proto) == ETH_P_8021Q) {
-		memcpy(&vlan_eth, skb_in->data, sizeof(struct vlan_ethhdr));
-		if (ntohs(vlan_eth.h_vlan_encapsulated_proto) != ETH_P_IPV6)
-			return -1;
-		mac_header_data = &vlan_eth;
-		mac_header_len = VLAN_ETH_HLEN;
-	} else {
-		memcpy(&eth, skb_in->data, sizeof(struct ethhdr));
-		if (ntohs(eth.h_proto) != ETH_P_IPV6)
-			return -1;
-		mac_header_data = &eth;
-		mac_header_len = ETH_HLEN;
-	}
-
-	/* Check if this is IPv6 ICMP packet */
-	ipv6_in = (struct ipv6hdr *)(skb_in->data + mac_header_len);
-	if (ipv6_in->version != 6 || ipv6_in->nexthdr != IPPROTO_ICMPV6)
-		return -1;
-
-	/* Check if this is NDP packet */
-	icmp6_in = (struct icmp6hdr *)(skb_in->data + mac_header_len +
-					sizeof(struct ipv6hdr));
-	if (icmp6_in->icmp6_type == NDISC_ROUTER_SOLICITATION) { /* Check RS */
-		return -1;
-	} else if (icmp6_in->icmp6_type == NDISC_NEIGHBOUR_SOLICITATION) {
-		/* Check NS */
-		u8 icmp_na[sizeof(struct icmp6hdr) +
-			sizeof(struct neighbour_advertisement)];
-		u8 zero_addr8[16] = {0,};
-
-		if (memcmp(ipv6_in->saddr.in6_u.u6_addr8, zero_addr8, 16) == 0)
-			/* Duplicate Address Detection: Source IP is all zero */
-			return 0;
-
-		icmp6_out.icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT;
-		icmp6_out.icmp6_code = 0;
-		icmp6_out.icmp6_cksum = 0;
-		/* R=0, S=1, O=1 */
-		icmp6_out.icmp6_dataun.un_data32[0] = htonl(0x60000000);
-
-		ns = (struct neighbour_solicitation *)
-			(skb_in->data + mac_header_len +
-			 sizeof(struct ipv6hdr) + sizeof(struct icmp6hdr));
-		memcpy(&na.target_address, ns->target_address, 16);
-		na.type = 0x02;
-		na.length = 1;
-		na.link_layer_address[0] = 0x00;
-		na.link_layer_address[1] = 0x0a;
-		na.link_layer_address[2] = 0x3b;
-		na.link_layer_address[3] = 0xaf;
-		na.link_layer_address[4] = 0x63;
-		na.link_layer_address[5] = 0xc7;
-
-		memcpy(&ipv6_out, ipv6_in, sizeof(struct ipv6hdr));
-		memcpy(ipv6_out.saddr.in6_u.u6_addr8, &na.target_address, 16);
-		memcpy(ipv6_out.daddr.in6_u.u6_addr8,
-			ipv6_in->saddr.in6_u.u6_addr8, 16);
-		ipv6_out.payload_len = htons(sizeof(struct icmp6hdr) +
-				sizeof(struct neighbour_advertisement));
-
-		memcpy(icmp_na, &icmp6_out, sizeof(struct icmp6hdr));
-		memcpy(icmp_na + sizeof(struct icmp6hdr), &na,
-			sizeof(struct neighbour_advertisement));
-
-		icmp6_out.icmp6_cksum = icmp6_checksum(&ipv6_out,
-					(u16 *)icmp_na, sizeof(icmp_na));
-	} else {
-		return -1;
-	}
-
-	/* Fill the destination mac with source mac of the received packet */
-	memcpy(mac_header_data, mac_header_data + ETH_ALEN, ETH_ALEN);
-	/* Fill the source mac with nic's source mac */
-	memcpy(mac_header_data + ETH_ALEN, nic->src_mac_addr, ETH_ALEN);
-
-	/* Alloc skb and reserve align */
-	skb_out = dev_alloc_skb(skb_in->len);
-	if (!skb_out)
-		return -ENOMEM;
-	skb_reserve(skb_out, NET_IP_ALIGN);
-
-	memcpy(skb_put(skb_out, mac_header_len), mac_header_data,
-		mac_header_len);
-	memcpy(skb_put(skb_out, sizeof(struct ipv6hdr)), &ipv6_out,
-		sizeof(struct ipv6hdr));
-	memcpy(skb_put(skb_out, sizeof(struct icmp6hdr)), &icmp6_out,
-		sizeof(struct icmp6hdr));
-	memcpy(skb_put(skb_out, sizeof(struct neighbour_advertisement)), &na,
-		sizeof(struct neighbour_advertisement));
-
-	skb_out->protocol = ((struct ethhdr *)mac_header_data)->h_proto;
-	skb_out->dev = skb_in->dev;
-	skb_reset_mac_header(skb_out);
-	skb_pull(skb_out, ETH_HLEN);
-
-	gdm_lte_rx(skb_out, nic, nic_type);
-
-	return 0;
-}
-
-static s32 gdm_lte_tx_nic_type(struct net_device *dev, struct sk_buff *skb)
-{
-	struct nic *nic = netdev_priv(dev);
-	struct ethhdr *eth;
-	struct vlan_ethhdr *vlan_eth;
-	struct iphdr *ip;
-	struct ipv6hdr *ipv6;
-	int mac_proto;
-	void *network_data;
-	u32 nic_type = 0;
-
-	/* NIC TYPE is based on the nic_id of this net_device */
-	nic_type = 0x00000010 | nic->nic_id;
-
-	/* Get ethernet protocol */
-	eth = (struct ethhdr *)skb->data;
-	if (ntohs(eth->h_proto) == ETH_P_8021Q) {
-		vlan_eth = (struct vlan_ethhdr *)skb->data;
-		mac_proto = ntohs(vlan_eth->h_vlan_encapsulated_proto);
-		network_data = skb->data + VLAN_ETH_HLEN;
-		nic_type |= NIC_TYPE_F_VLAN;
-	} else {
-		mac_proto = ntohs(eth->h_proto);
-		network_data = skb->data + ETH_HLEN;
-	}
-
-	/* Process packet for nic type */
-	switch (mac_proto) {
-	case ETH_P_ARP:
-		nic_type |= NIC_TYPE_ARP;
-		break;
-	case ETH_P_IP:
-		nic_type |= NIC_TYPE_F_IPV4;
-		ip = (struct iphdr *)network_data;
-
-		/* Check DHCPv4 */
-		if (ip->protocol == IPPROTO_UDP) {
-			struct udphdr *udp = (struct udphdr *)
-					(network_data + sizeof(struct iphdr));
-			if (ntohs(udp->dest) == 67 || ntohs(udp->dest) == 68)
-				nic_type |= NIC_TYPE_F_DHCP;
-		}
-		break;
-	case ETH_P_IPV6:
-		nic_type |= NIC_TYPE_F_IPV6;
-		ipv6 = (struct ipv6hdr *)network_data;
-
-		if (ipv6->nexthdr == IPPROTO_ICMPV6) /* Check NDP request */ {
-			struct icmp6hdr *icmp6 = (struct icmp6hdr *)
-					(network_data + sizeof(struct ipv6hdr));
-			if (icmp6->icmp6_type == NDISC_NEIGHBOUR_SOLICITATION)
-				nic_type |= NIC_TYPE_ICMPV6;
-		} else if (ipv6->nexthdr == IPPROTO_UDP) /* Check DHCPv6 */ {
-			struct udphdr *udp = (struct udphdr *)
-					(network_data + sizeof(struct ipv6hdr));
-			if (ntohs(udp->dest) == 546 || ntohs(udp->dest) == 547)
-				nic_type |= NIC_TYPE_F_DHCP;
-		}
-		break;
-	default:
-		break;
-	}
-
-	return nic_type;
-}
-
-static int gdm_lte_tx(struct sk_buff *skb, struct net_device *dev)
-{
-	struct nic *nic = netdev_priv(dev);
-	u32 nic_type;
-	void *data_buf;
-	int data_len;
-	int idx;
-	int ret = 0;
-
-	nic_type = gdm_lte_tx_nic_type(dev, skb);
-	if (nic_type == 0) {
-		netdev_err(dev, "tx - invalid nic_type\n");
-		return -1;
-	}
-
-	if (nic_type & NIC_TYPE_ARP) {
-		if (gdm_lte_emulate_arp(skb, nic_type) == 0) {
-			dev_kfree_skb(skb);
-			return 0;
-		}
-	}
-
-	if (nic_type & NIC_TYPE_ICMPV6) {
-		if (gdm_lte_emulate_ndp(skb, nic_type) == 0) {
-			dev_kfree_skb(skb);
-			return 0;
-		}
-	}
-
-	/*
-	 * Need byte shift (that is, remove VLAN tag) if there is one
-	 * For the case of ARP, this breaks the offset as vlan_ethhdr+4
-	 * is treated as ethhdr	However, it shouldn't be a problem as
-	 * the response starts from arp_hdr and ethhdr is created by this
-	 * driver based on the NIC mac
-	 */
-	if (nic_type & NIC_TYPE_F_VLAN) {
-		struct vlan_ethhdr *vlan_eth = (struct vlan_ethhdr *)skb->data;
-
-		nic->vlan_id = ntohs(vlan_eth->h_vlan_TCI) & VLAN_VID_MASK;
-		data_buf = skb->data + (VLAN_ETH_HLEN - ETH_HLEN);
-		data_len = skb->len - (VLAN_ETH_HLEN - ETH_HLEN);
-	} else {
-		nic->vlan_id = 0;
-		data_buf = skb->data;
-		data_len = skb->len;
-	}
-
-	/* If it is a ICMPV6 packet, clear all the other bits :
-	 * for backward compatibility with the firmware
-	 */
-	if (nic_type & NIC_TYPE_ICMPV6)
-		nic_type = NIC_TYPE_ICMPV6;
-
-	/* If it is not a dhcp packet, clear all the flag bits :
-	 * original NIC, otherwise the special flag (IPVX | DHCP)
-	 */
-	if (!(nic_type & NIC_TYPE_F_DHCP))
-		nic_type &= NIC_TYPE_MASK;
-
-	ret = sscanf(dev->name, "lte%d", &idx);
-	if (ret != 1) {
-		dev_kfree_skb(skb);
-		return -EINVAL;
-	}
-
-	ret = nic->phy_dev->send_sdu_func(nic->phy_dev->priv_dev,
-					  data_buf, data_len,
-					  nic->pdn_table.dft_eps_id, 0,
-					  tx_complete, nic, idx,
-					  nic_type);
-
-	if (ret == TX_NO_BUFFER || ret == TX_NO_SPC) {
-		netif_stop_queue(dev);
-		if (ret == TX_NO_BUFFER)
-			ret = 0;
-		else
-			ret = -ENOSPC;
-	} else if (ret == TX_NO_DEV) {
-		ret = -ENODEV;
-	}
-
-	/* Updates tx stats */
-	if (ret) {
-		nic->stats.tx_dropped++;
-	} else {
-		nic->stats.tx_packets++;
-		nic->stats.tx_bytes += data_len;
-	}
-	dev_kfree_skb(skb);
-
-	return 0;
-}
-
-static struct net_device_stats *gdm_lte_stats(struct net_device *dev)
-{
-	struct nic *nic = netdev_priv(dev);
-
-	return &nic->stats;
-}
-
-static int gdm_lte_event_send(struct net_device *dev, char *buf, int len)
-{
-	struct nic *nic = netdev_priv(dev);
-	struct hci_packet *hci = (struct hci_packet *)buf;
-	int idx;
-	int ret;
-
-	ret = sscanf(dev->name, "lte%d", &idx);
-	if (ret != 1)
-		return -EINVAL;
-
-	return netlink_send(lte_event.sock, idx, 0, buf,
-			    gdm_dev16_to_cpu(
-				    nic->phy_dev->get_endian(
-					    nic->phy_dev->priv_dev), hci->len)
-			    + HCI_HEADER_SIZE);
-}
-
-static void gdm_lte_event_rcv(struct net_device *dev, u16 type,
-				void *msg, int len)
-{
-	struct nic *nic = netdev_priv(dev);
-
-	nic->phy_dev->send_hci_func(nic->phy_dev->priv_dev, msg, len, NULL,
-				    NULL);
-}
-
-int gdm_lte_event_init(void)
-{
-	if (lte_event.ref_cnt == 0)
-		lte_event.sock = netlink_init(NETLINK_LTE, gdm_lte_event_rcv);
-
-	if (lte_event.sock) {
-		lte_event.ref_cnt++;
-		return 0;
-	}
-
-	pr_err("event init failed\n");
-	return -1;
-}
-
-void gdm_lte_event_exit(void)
-{
-	if (lte_event.sock && --lte_event.ref_cnt == 0) {
-		netlink_exit(lte_event.sock);
-		lte_event.sock = NULL;
-	}
-}
-
-static u8 find_dev_index(u32 nic_type)
-{
-	u8 index;
-
-	index = (u8)(nic_type & 0x0000000f);
-	if (index > MAX_NIC_TYPE)
-		index = 0;
-
-	return index;
-}
-
-static void gdm_lte_netif_rx(struct net_device *dev, char *buf,
-			int len, int flagged_nic_type)
-{
-	u32 nic_type;
-	struct nic *nic;
-	struct sk_buff *skb;
-	struct ethhdr eth;
-	struct vlan_ethhdr vlan_eth;
-	void *mac_header_data;
-	u32 mac_header_len;
-	char ip_version = 0;
-
-	nic_type = flagged_nic_type & NIC_TYPE_MASK;
-	nic = netdev_priv(dev);
-
-	if (flagged_nic_type & NIC_TYPE_F_DHCP) {
-		/* Change the destination mac address
-		 * with the one requested the IP
-		 */
-		if (flagged_nic_type & NIC_TYPE_F_IPV4) {
-			struct dhcp_packet {
-				u8 op;      /* BOOTREQUEST or BOOTREPLY */
-				u8 htype;   /* hardware address type.
-					     * 1 = 10mb ethernet
-					     */
-				u8 hlen;    /* hardware address length */
-				u8 hops;    /* used by relay agents only */
-				u32 xid;    /* unique id */
-				u16 secs;   /* elapsed since client began
-					     * acquisition/renewal
-					     */
-				u16 flags;  /* only one flag so far: */
-				#define BROADCAST_FLAG 0x8000
-				/* "I need broadcast replies" */
-				u32 ciaddr; /* client IP (if client is in
-					     * BOUND, RENEW or REBINDING state)
-					     */
-				u32 yiaddr; /* 'your' (client) IP address */
-				/* IP address of next server to use in
-				 * bootstrap, returned in DHCPOFFER,
-				 * DHCPACK by server
-				 */
-				u32 siaddr_nip;
-				u32 gateway_nip; /* relay agent IP address */
-				u8 chaddr[16];   /* link-layer client hardware
-						  * address (MAC)
-						  */
-				u8 sname[64];    /* server host name (ASCIZ) */
-				u8 file[128];    /* boot file name (ASCIZ) */
-				u32 cookie;      /* fixed first four option
-						  * bytes (99,130,83,99 dec)
-						  */
-			} __packed;
-			void *addr = buf + sizeof(struct iphdr) +
-				sizeof(struct udphdr) +
-				offsetof(struct dhcp_packet, chaddr);
-			ether_addr_copy(nic->dest_mac_addr, addr);
-		}
-	}
-
-	if (nic->vlan_id > 0) {
-		mac_header_data = (void *)&vlan_eth;
-		mac_header_len = VLAN_ETH_HLEN;
-	} else {
-		mac_header_data = (void *)&eth;
-		mac_header_len = ETH_HLEN;
-	}
-
-	/* Format the data so that it can be put to skb */
-	ether_addr_copy(mac_header_data, nic->dest_mac_addr);
-	memcpy(mac_header_data + ETH_ALEN, nic->src_mac_addr, ETH_ALEN);
-
-	vlan_eth.h_vlan_TCI = htons(nic->vlan_id);
-	vlan_eth.h_vlan_proto = htons(ETH_P_8021Q);
-
-	if (nic_type == NIC_TYPE_ARP) {
-		/* Should be response: Only happens because
-		 * there was a request from the host
-		 */
-		eth.h_proto = htons(ETH_P_ARP);
-		vlan_eth.h_vlan_encapsulated_proto = htons(ETH_P_ARP);
-	} else {
-		ip_version = buf[0] >> 4;
-		if (ip_version == IP_VERSION_4) {
-			eth.h_proto = htons(ETH_P_IP);
-			vlan_eth.h_vlan_encapsulated_proto = htons(ETH_P_IP);
-		} else if (ip_version == IP_VERSION_6) {
-			eth.h_proto = htons(ETH_P_IPV6);
-			vlan_eth.h_vlan_encapsulated_proto = htons(ETH_P_IPV6);
-		} else {
-			netdev_err(dev, "Unknown IP version %d\n", ip_version);
-			return;
-		}
-	}
-
-	/* Alloc skb and reserve align */
-	skb = dev_alloc_skb(len + mac_header_len + NET_IP_ALIGN);
-	if (!skb)
-		return;
-	skb_reserve(skb, NET_IP_ALIGN);
-
-	memcpy(skb_put(skb, mac_header_len), mac_header_data, mac_header_len);
-	memcpy(skb_put(skb, len), buf, len);
-
-	skb->protocol = ((struct ethhdr *)mac_header_data)->h_proto;
-	skb->dev = dev;
-	skb_reset_mac_header(skb);
-	skb_pull(skb, ETH_HLEN);
-
-	gdm_lte_rx(skb, nic, nic_type);
-}
-
-static void gdm_lte_multi_sdu_pkt(struct phy_dev *phy_dev, char *buf, int len)
-{
-	struct net_device *dev;
-	struct multi_sdu *multi_sdu = (struct multi_sdu *)buf;
-	struct sdu *sdu = NULL;
-	u8 *data = (u8 *)multi_sdu->data;
-	u16 i = 0;
-	u16 num_packet;
-	u16 hci_len;
-	u16 cmd_evt;
-	u32 nic_type;
-	u8 index;
-
-	hci_len = gdm_dev16_to_cpu(phy_dev->get_endian(phy_dev->priv_dev),
-				multi_sdu->len);
-	num_packet = gdm_dev16_to_cpu(phy_dev->get_endian(phy_dev->priv_dev),
-				multi_sdu->num_packet);
-
-	for (i = 0; i < num_packet; i++) {
-		sdu = (struct sdu *)data;
-
-		cmd_evt = gdm_dev16_to_cpu(phy_dev->
-				get_endian(phy_dev->priv_dev), sdu->cmd_evt);
-		hci_len = gdm_dev16_to_cpu(phy_dev->
-				get_endian(phy_dev->priv_dev), sdu->len);
-		nic_type = gdm_dev32_to_cpu(phy_dev->
-				get_endian(phy_dev->priv_dev), sdu->nic_type);
-
-		if (cmd_evt != LTE_RX_SDU) {
-			pr_err("rx sdu wrong hci %04x\n", cmd_evt);
-			return;
-		}
-		if (hci_len < 12) {
-			pr_err("rx sdu invalid len %d\n", hci_len);
-			return;
-		}
-
-		index = find_dev_index(nic_type);
-		if (index < MAX_NIC_TYPE) {
-			dev = phy_dev->dev[index];
-			gdm_lte_netif_rx(dev, (char *)sdu->data,
-					(int)(hci_len-12), nic_type);
-		} else {
-			pr_err("rx sdu invalid nic_type :%x\n", nic_type);
-		}
-
-		data += ((hci_len+3) & 0xfffc) + HCI_HEADER_SIZE;
-	}
-}
-
-static void gdm_lte_pdn_table(struct net_device *dev, char *buf, int len)
-{
-	struct nic *nic = netdev_priv(dev);
-	struct hci_pdn_table_ind *pdn_table = (struct hci_pdn_table_ind *)buf;
-
-	if (pdn_table->activate) {
-		nic->pdn_table.activate = pdn_table->activate;
-		nic->pdn_table.dft_eps_id = gdm_dev32_to_cpu(
-						nic->phy_dev->get_endian(
-							nic->phy_dev->priv_dev),
-						pdn_table->dft_eps_id);
-		nic->pdn_table.nic_type = gdm_dev32_to_cpu(
-						nic->phy_dev->get_endian(
-							nic->phy_dev->priv_dev),
-						pdn_table->nic_type);
-
-		netdev_info(dev, "pdn activated, nic_type=0x%x\n",
-			    nic->pdn_table.nic_type);
-	} else {
-		memset(&nic->pdn_table, 0x00, sizeof(struct pdn_table));
-		netdev_info(dev, "pdn deactivated\n");
-	}
-}
-
-static int gdm_lte_receive_pkt(struct phy_dev *phy_dev, char *buf, int len)
-{
-	struct hci_packet *hci = (struct hci_packet *)buf;
-	struct hci_pdn_table_ind *pdn_table = (struct hci_pdn_table_ind *)buf;
-	struct sdu *sdu;
-	struct net_device *dev;
-	int ret = 0;
-	u16 cmd_evt;
-	u32 nic_type;
-	u8 index;
-
-	if (!len)
-		return ret;
-
-	cmd_evt = gdm_dev16_to_cpu(phy_dev->get_endian(phy_dev->priv_dev),
-				hci->cmd_evt);
-
-	dev = phy_dev->dev[0];
-	if (dev == NULL)
-		return 0;
-
-	switch (cmd_evt) {
-	case LTE_RX_SDU:
-		sdu = (struct sdu *)hci->data;
-		nic_type = gdm_dev32_to_cpu(phy_dev->
-				get_endian(phy_dev->priv_dev), sdu->nic_type);
-		index = find_dev_index(nic_type);
-		dev = phy_dev->dev[index];
-		gdm_lte_netif_rx(dev, hci->data, len, nic_type);
-		break;
-	case LTE_RX_MULTI_SDU:
-		gdm_lte_multi_sdu_pkt(phy_dev, buf, len);
-		break;
-	case LTE_LINK_ON_OFF_INDICATION:
-		netdev_info(dev, "link %s\n",
-			    ((struct hci_connect_ind *)buf)->connect
-			    ? "on" : "off");
-		break;
-	case LTE_PDN_TABLE_IND:
-		pdn_table = (struct hci_pdn_table_ind *)buf;
-		nic_type = gdm_dev32_to_cpu(phy_dev->
-				get_endian(phy_dev->priv_dev),
-				pdn_table->nic_type);
-		index = find_dev_index(nic_type);
-		dev = phy_dev->dev[index];
-		gdm_lte_pdn_table(dev, buf, len);
-		/* Fall through */
-	default:
-		ret = gdm_lte_event_send(dev, buf, len);
-		break;
-	}
-
-	return ret;
-}
-
-static int rx_complete(void *arg, void *data, int len, int context)
-{
-	struct phy_dev *phy_dev = (struct phy_dev *)arg;
-
-	return gdm_lte_receive_pkt(phy_dev, (char *)data, len);
-}
-
-void start_rx_proc(struct phy_dev *phy_dev)
-{
-	int i;
-
-	for (i = 0; i < MAX_RX_SUBMIT_COUNT; i++)
-		phy_dev->rcv_func(phy_dev->priv_dev,
-				rx_complete, phy_dev, USB_COMPLETE);
-}
-
-static struct net_device_ops gdm_netdev_ops = {
-	.ndo_open			= gdm_lte_open,
-	.ndo_stop			= gdm_lte_close,
-	.ndo_set_config			= gdm_lte_set_config,
-	.ndo_start_xmit			= gdm_lte_tx,
-	.ndo_get_stats			= gdm_lte_stats,
-};
-
-static u8 gdm_lte_macaddr[ETH_ALEN] = {0x00, 0x0a, 0x3b, 0x00, 0x00, 0x00};
-
-static void form_mac_address(u8 *dev_addr, u8 *nic_src, u8 *nic_dest,
-			u8 *mac_address, u8 index)
-{
-	/* Form the dev_addr */
-	if (!mac_address)
-		ether_addr_copy(dev_addr, gdm_lte_macaddr);
-	else
-		ether_addr_copy(dev_addr, mac_address);
-
-	/* The last byte of the mac address
-	 * should be less than or equal to 0xFC
-	 */
-	dev_addr[ETH_ALEN-1] += index;
-
-	/* Create random nic src and copy the first
-	 * 3 bytes to be the same as dev_addr
-	 */
-	random_ether_addr(nic_src);
-	memcpy(nic_src, dev_addr, 3);
-
-	/* Copy the nic_dest from dev_addr*/
-	ether_addr_copy(nic_dest, dev_addr);
-}
-
-static void validate_mac_address(u8 *mac_address)
-{
-	/* if zero address or multicast bit set, restore the default value */
-	if (is_zero_ether_addr(mac_address) || (mac_address[0] & 0x01)) {
-		pr_err("MAC invalid, restoring default\n");
-		memcpy(mac_address, gdm_lte_macaddr, 6);
-	}
-}
-
-int register_lte_device(struct phy_dev *phy_dev,
-			struct device *dev, u8 *mac_address)
-{
-	struct nic *nic;
-	struct net_device *net;
-	char pdn_dev_name[16];
-	int ret = 0;
-	u8 index;
-
-	validate_mac_address(mac_address);
-
-	for (index = 0; index < MAX_NIC_TYPE; index++) {
-		/* Create device name lteXpdnX */
-		sprintf(pdn_dev_name, "lte%%dpdn%d", index);
-
-		/* Allocate netdev */
-		net = alloc_netdev(sizeof(struct nic), pdn_dev_name,
-				   NET_NAME_UNKNOWN, ether_setup);
-		if (!net) {
-			pr_err("alloc_netdev failed\n");
-			ret = -ENOMEM;
-			goto err;
-		}
-		net->netdev_ops = &gdm_netdev_ops;
-		net->flags &= ~IFF_MULTICAST;
-		net->mtu = DEFAULT_MTU_SIZE;
-
-		nic = netdev_priv(net);
-		memset(nic, 0, sizeof(struct nic));
-		nic->netdev = net;
-		nic->phy_dev = phy_dev;
-		nic->nic_id = index;
-
-		form_mac_address(
-				net->dev_addr,
-				nic->src_mac_addr,
-				nic->dest_mac_addr,
-				mac_address,
-				index);
-
-		SET_NETDEV_DEV(net, dev);
-		SET_NETDEV_DEVTYPE(net, &wwan_type);
-
-		ret = register_netdev(net);
-		if (ret)
-			goto err;
-
-		netif_carrier_on(net);
-
-		phy_dev->dev[index] = net;
-	}
-
-	return 0;
-
-err:
-	unregister_lte_device(phy_dev);
-
-	return ret;
-}
-
-void unregister_lte_device(struct phy_dev *phy_dev)
-{
-	struct net_device *net;
-	int index;
-
-	for (index = 0; index < MAX_NIC_TYPE; index++) {
-		net = phy_dev->dev[index];
-		if (net == NULL)
-			continue;
-
-		unregister_netdev(net);
-		free_netdev(net);
-	}
-}
diff --git a/drivers/staging/gdm724x/gdm_lte.h b/drivers/staging/gdm724x/gdm_lte.h
deleted file mode 100644
index 88414e5a70cc..000000000000
--- a/drivers/staging/gdm724x/gdm_lte.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _GDM_LTE_H_
-#define _GDM_LTE_H_
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-
-#include "gdm_endian.h"
-
-#define MAX_NIC_TYPE		4
-#define MAX_RX_SUBMIT_COUNT	3
-#define DRIVER_VERSION		"3.7.17.0"
-
-enum TX_ERROR_CODE {
-	TX_NO_ERROR = 0,
-	TX_NO_DEV,
-	TX_NO_SPC,
-	TX_NO_BUFFER,
-};
-
-enum CALLBACK_CONTEXT {
-	KERNEL_THREAD = 0,
-	USB_COMPLETE,
-};
-
-struct pdn_table {
-	u8 activate;
-	u32 dft_eps_id;
-	u32 nic_type;
-} __packed;
-
-struct nic;
-
-struct phy_dev {
-	void	*priv_dev;
-	struct net_device *dev[MAX_NIC_TYPE];
-	int	(*send_hci_func)(void *priv_dev, void *data, int len,
-			void (*cb)(void *cb_data), void *cb_data);
-	int	(*send_sdu_func)(void *priv_dev, void *data, int len,
-			unsigned int dftEpsId, unsigned int epsId,
-			void (*cb)(void *cb_data), void *cb_data,
-			int dev_idx, int nic_type);
-	int	(*rcv_func)(void *priv_dev,
-			int (*cb)(void *cb_data, void *data, int len,
-				  int context),
-			void *cb_data, int context);
-	struct gdm_endian * (*get_endian)(void *priv_dev);
-};
-
-struct nic {
-	struct net_device *netdev;
-	struct phy_dev *phy_dev;
-	struct net_device_stats stats;
-	struct pdn_table pdn_table;
-	u8 dest_mac_addr[ETH_ALEN];
-	u8 src_mac_addr[ETH_ALEN];
-	u32 nic_id;
-	u16 vlan_id;
-};
-
-int gdm_lte_event_init(void);
-void gdm_lte_event_exit(void);
-
-void start_rx_proc(struct phy_dev *phy_dev);
-int register_lte_device(struct phy_dev *phy_dev, struct device *dev,
-			u8 *mac_address);
-void unregister_lte_device(struct phy_dev *phy_dev);
-
-#endif /* _GDM_LTE_H_ */
diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
deleted file mode 100644
index 1cf24e4edf25..000000000000
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ /dev/null
@@ -1,691 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/usb.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/slab.h>
-#include <linux/usb/cdc.h>
-
-#include "gdm_mux.h"
-
-static struct workqueue_struct *mux_rx_wq;
-
-static u16 packet_type[TTY_MAX_COUNT] = {0xF011, 0xF010};
-
-#define USB_DEVICE_CDC_DATA(vid, pid) \
-	.match_flags = \
-		USB_DEVICE_ID_MATCH_DEVICE |\
-		USB_DEVICE_ID_MATCH_INT_CLASS |\
-		USB_DEVICE_ID_MATCH_INT_SUBCLASS,\
-	.idVendor = vid,\
-	.idProduct = pid,\
-	.bInterfaceClass = USB_CLASS_COMM,\
-	.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM
-
-static const struct usb_device_id id_table[] = {
-	{ USB_DEVICE_CDC_DATA(0x1076, 0x8000) }, /* GCT GDM7240 */
-	{ USB_DEVICE_CDC_DATA(0x1076, 0x8f00) }, /* GCT GDM7243 */
-	{ USB_DEVICE_CDC_DATA(0x1076, 0x9000) }, /* GCT GDM7243 */
-	{ USB_DEVICE_CDC_DATA(0x1d74, 0x2300) }, /* LGIT Phoenix */
-	{}
-};
-
-
-MODULE_DEVICE_TABLE(usb, id_table);
-
-static int packet_type_to_index(u16 packetType)
-{
-	int i;
-
-	for (i = 0; i < TTY_MAX_COUNT; i++) {
-		if (packet_type[i] == packetType)
-			return i;
-	}
-
-	return -1;
-}
-
-static struct mux_tx *alloc_mux_tx(int len)
-{
-	struct mux_tx *t = NULL;
-
-	t = kzalloc(sizeof(struct mux_tx), GFP_ATOMIC);
-	if (!t)
-		return NULL;
-
-	t->urb = usb_alloc_urb(0, GFP_ATOMIC);
-	t->buf = kmalloc(MUX_TX_MAX_SIZE, GFP_ATOMIC);
-	if (!t->urb || !t->buf) {
-		usb_free_urb(t->urb);
-		kfree(t->buf);
-		kfree(t);
-		return NULL;
-	}
-
-	return t;
-}
-
-static void free_mux_tx(struct mux_tx *t)
-{
-	if (t) {
-		usb_free_urb(t->urb);
-		kfree(t->buf);
-		kfree(t);
-	}
-}
-
-static struct mux_rx *alloc_mux_rx(void)
-{
-	struct mux_rx *r = NULL;
-
-	r = kzalloc(sizeof(struct mux_rx), GFP_KERNEL);
-	if (!r)
-		return NULL;
-
-	r->urb = usb_alloc_urb(0, GFP_KERNEL);
-	r->buf = kmalloc(MUX_RX_MAX_SIZE, GFP_KERNEL);
-	if (!r->urb || !r->buf) {
-		usb_free_urb(r->urb);
-		kfree(r->buf);
-		kfree(r);
-		return NULL;
-	}
-
-	return r;
-}
-
-static void free_mux_rx(struct mux_rx *r)
-{
-	if (r) {
-		usb_free_urb(r->urb);
-		kfree(r->buf);
-		kfree(r);
-	}
-}
-
-static struct mux_rx *get_rx_struct(struct rx_cxt *rx)
-{
-	struct mux_rx *r;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rx->free_list_lock, flags);
-
-	if (list_empty(&rx->rx_free_list)) {
-		spin_unlock_irqrestore(&rx->free_list_lock, flags);
-		return NULL;
-	}
-
-	r = list_entry(rx->rx_free_list.prev, struct mux_rx, free_list);
-	list_del(&r->free_list);
-
-	spin_unlock_irqrestore(&rx->free_list_lock, flags);
-
-	return r;
-}
-
-static void put_rx_struct(struct rx_cxt *rx, struct mux_rx *r)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&rx->free_list_lock, flags);
-	list_add_tail(&r->free_list, &rx->rx_free_list);
-	spin_unlock_irqrestore(&rx->free_list_lock, flags);
-}
-
-
-static int up_to_host(struct mux_rx *r)
-{
-	struct mux_dev *mux_dev = (struct mux_dev *)r->mux_dev;
-	struct mux_pkt_header *mux_header;
-	unsigned int start_flag;
-	unsigned int payload_size;
-	unsigned short packet_type;
-	int total_len;
-	u32 packet_size_sum = r->offset;
-	int index;
-	int ret = TO_HOST_INVALID_PACKET;
-	int len = r->len;
-
-	while (1) {
-		mux_header = (struct mux_pkt_header *)(r->buf +
-						       packet_size_sum);
-		start_flag = __le32_to_cpu(mux_header->start_flag);
-		payload_size = __le32_to_cpu(mux_header->payload_size);
-		packet_type = __le16_to_cpu(mux_header->packet_type);
-
-		if (start_flag != START_FLAG) {
-			pr_err("invalid START_FLAG %x\n", start_flag);
-			break;
-		}
-
-		total_len = ALIGN(MUX_HEADER_SIZE + payload_size, 4);
-
-		if (len - packet_size_sum <
-			total_len) {
-			pr_err("invalid payload : %d %d %04x\n",
-			       payload_size, len, packet_type);
-			break;
-		}
-
-		index = packet_type_to_index(packet_type);
-		if (index < 0) {
-			pr_err("invalid index %d\n", index);
-			break;
-		}
-
-		ret = r->callback(mux_header->data,
-				payload_size,
-				index,
-				mux_dev->tty_dev,
-				RECV_PACKET_PROCESS_CONTINUE
-				);
-		if (ret == TO_HOST_BUFFER_REQUEST_FAIL) {
-			r->offset += packet_size_sum;
-			break;
-		}
-
-		packet_size_sum += total_len;
-		if (len - packet_size_sum <= MUX_HEADER_SIZE + 2) {
-			ret = r->callback(NULL,
-					0,
-					index,
-					mux_dev->tty_dev,
-					RECV_PACKET_PROCESS_COMPLETE
-					);
-			break;
-		}
-	}
-
-	return ret;
-}
-
-static void do_rx(struct work_struct *work)
-{
-	struct mux_dev *mux_dev =
-		container_of(work, struct mux_dev, work_rx.work);
-	struct mux_rx *r;
-	struct rx_cxt *rx = (struct rx_cxt *)&mux_dev->rx;
-	unsigned long flags;
-	int ret = 0;
-
-	while (1) {
-		spin_lock_irqsave(&rx->to_host_lock, flags);
-		if (list_empty(&rx->to_host_list)) {
-			spin_unlock_irqrestore(&rx->to_host_lock, flags);
-			break;
-		}
-		r = list_entry(rx->to_host_list.next, struct mux_rx,
-			       to_host_list);
-		list_del(&r->to_host_list);
-		spin_unlock_irqrestore(&rx->to_host_lock, flags);
-
-		ret = up_to_host(r);
-		if (ret == TO_HOST_BUFFER_REQUEST_FAIL)
-			pr_err("failed to send mux data to host\n");
-		else
-			put_rx_struct(rx, r);
-	}
-}
-
-static void remove_rx_submit_list(struct mux_rx *r, struct rx_cxt *rx)
-{
-	unsigned long flags;
-	struct mux_rx	*r_remove, *r_remove_next;
-
-	spin_lock_irqsave(&rx->submit_list_lock, flags);
-	list_for_each_entry_safe(r_remove, r_remove_next, &rx->rx_submit_list,
-				 rx_submit_list) {
-		if (r == r_remove)
-			list_del(&r->rx_submit_list);
-	}
-	spin_unlock_irqrestore(&rx->submit_list_lock, flags);
-}
-
-static void gdm_mux_rcv_complete(struct urb *urb)
-{
-	struct mux_rx *r = urb->context;
-	struct mux_dev *mux_dev = (struct mux_dev *)r->mux_dev;
-	struct rx_cxt *rx = &mux_dev->rx;
-	unsigned long flags;
-
-	remove_rx_submit_list(r, rx);
-
-	if (urb->status) {
-		if (mux_dev->usb_state == PM_NORMAL)
-			dev_err(&urb->dev->dev, "%s: urb status error %d\n",
-			       __func__, urb->status);
-		put_rx_struct(rx, r);
-	} else {
-		r->len = r->urb->actual_length;
-		spin_lock_irqsave(&rx->to_host_lock, flags);
-		list_add_tail(&r->to_host_list, &rx->to_host_list);
-		queue_work(mux_rx_wq, &mux_dev->work_rx.work);
-		spin_unlock_irqrestore(&rx->to_host_lock, flags);
-	}
-}
-
-static int gdm_mux_recv(void *priv_dev, int (*cb)(void *data, int len,
-			int tty_index, struct tty_dev *tty_dev, int complete))
-{
-	struct mux_dev *mux_dev = priv_dev;
-	struct usb_device *usbdev = mux_dev->usbdev;
-	struct mux_rx *r;
-	struct rx_cxt *rx = &mux_dev->rx;
-	unsigned long flags;
-	int ret;
-
-	if (!usbdev) {
-		pr_err("device is disconnected\n");
-		return -ENODEV;
-	}
-
-	r = get_rx_struct(rx);
-	if (!r) {
-		pr_err("get_rx_struct fail\n");
-		return -ENOMEM;
-	}
-
-	r->offset = 0;
-	r->mux_dev = (void *)mux_dev;
-	r->callback = cb;
-	mux_dev->rx_cb = cb;
-
-	usb_fill_bulk_urb(r->urb,
-			  usbdev,
-			  usb_rcvbulkpipe(usbdev, 0x86),
-			  r->buf,
-			  MUX_RX_MAX_SIZE,
-			  gdm_mux_rcv_complete,
-			  r);
-
-	spin_lock_irqsave(&rx->submit_list_lock, flags);
-	list_add_tail(&r->rx_submit_list, &rx->rx_submit_list);
-	spin_unlock_irqrestore(&rx->submit_list_lock, flags);
-
-	ret = usb_submit_urb(r->urb, GFP_KERNEL);
-
-	if (ret) {
-		spin_lock_irqsave(&rx->submit_list_lock, flags);
-		list_del(&r->rx_submit_list);
-		spin_unlock_irqrestore(&rx->submit_list_lock, flags);
-
-		put_rx_struct(rx, r);
-
-		pr_err("usb_submit_urb ret=%d\n", ret);
-	}
-
-	usb_mark_last_busy(usbdev);
-
-	return ret;
-}
-
-static void gdm_mux_send_complete(struct urb *urb)
-{
-	struct mux_tx *t = urb->context;
-
-	if (urb->status == -ECONNRESET) {
-		dev_info(&urb->dev->dev, "CONNRESET\n");
-		free_mux_tx(t);
-		return;
-	}
-
-	if (t->callback)
-		t->callback(t->cb_data);
-
-	free_mux_tx(t);
-}
-
-static int gdm_mux_send(void *priv_dev, void *data, int len, int tty_index,
-			void (*cb)(void *data), void *cb_data)
-{
-	struct mux_dev *mux_dev = priv_dev;
-	struct usb_device *usbdev = mux_dev->usbdev;
-	struct mux_pkt_header *mux_header;
-	struct mux_tx *t = NULL;
-	static u32 seq_num = 1;
-	int total_len;
-	int ret;
-	unsigned long flags;
-
-	if (mux_dev->usb_state == PM_SUSPEND) {
-		ret = usb_autopm_get_interface(mux_dev->intf);
-		if (!ret)
-			usb_autopm_put_interface(mux_dev->intf);
-	}
-
-	spin_lock_irqsave(&mux_dev->write_lock, flags);
-
-	total_len = ALIGN(MUX_HEADER_SIZE + len, 4);
-
-	t = alloc_mux_tx(total_len);
-	if (!t) {
-		pr_err("alloc_mux_tx fail\n");
-		spin_unlock_irqrestore(&mux_dev->write_lock, flags);
-		return -ENOMEM;
-	}
-
-	mux_header = (struct mux_pkt_header *)t->buf;
-	mux_header->start_flag = __cpu_to_le32(START_FLAG);
-	mux_header->seq_num = __cpu_to_le32(seq_num++);
-	mux_header->payload_size = __cpu_to_le32((u32)len);
-	mux_header->packet_type = __cpu_to_le16(packet_type[tty_index]);
-
-	memcpy(t->buf+MUX_HEADER_SIZE, data, len);
-	memset(t->buf+MUX_HEADER_SIZE+len, 0, total_len - MUX_HEADER_SIZE -
-	       len);
-
-	t->len = total_len;
-	t->callback = cb;
-	t->cb_data = cb_data;
-
-	usb_fill_bulk_urb(t->urb,
-			  usbdev,
-			  usb_sndbulkpipe(usbdev, 5),
-			  t->buf,
-			  total_len,
-			  gdm_mux_send_complete,
-			  t);
-
-	ret = usb_submit_urb(t->urb, GFP_ATOMIC);
-
-	spin_unlock_irqrestore(&mux_dev->write_lock, flags);
-
-	if (ret)
-		pr_err("usb_submit_urb Error: %d\n", ret);
-
-	usb_mark_last_busy(usbdev);
-
-	return ret;
-}
-
-static int gdm_mux_send_control(void *priv_dev, int request, int value,
-				void *buf, int len)
-{
-	struct mux_dev *mux_dev = priv_dev;
-	struct usb_device *usbdev = mux_dev->usbdev;
-	int ret;
-
-	ret = usb_control_msg(usbdev,
-			      usb_sndctrlpipe(usbdev, 0),
-			      request,
-			      USB_RT_ACM,
-			      value,
-			      2,
-			      buf,
-			      len,
-			      5000
-			     );
-
-	if (ret < 0)
-		pr_err("usb_control_msg error: %d\n", ret);
-
-	return ret < 0 ? ret : 0;
-}
-
-static void release_usb(struct mux_dev *mux_dev)
-{
-	struct rx_cxt		*rx = &mux_dev->rx;
-	struct mux_rx		*r, *r_next;
-	unsigned long		flags;
-
-	cancel_delayed_work(&mux_dev->work_rx);
-
-	spin_lock_irqsave(&rx->submit_list_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->rx_submit_list,
-				 rx_submit_list) {
-		spin_unlock_irqrestore(&rx->submit_list_lock, flags);
-		usb_kill_urb(r->urb);
-		spin_lock_irqsave(&rx->submit_list_lock, flags);
-	}
-	spin_unlock_irqrestore(&rx->submit_list_lock, flags);
-
-	spin_lock_irqsave(&rx->free_list_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->rx_free_list, free_list) {
-		list_del(&r->free_list);
-		free_mux_rx(r);
-	}
-	spin_unlock_irqrestore(&rx->free_list_lock, flags);
-
-	spin_lock_irqsave(&rx->to_host_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->to_host_list, to_host_list) {
-		if (r->mux_dev == (void *)mux_dev) {
-			list_del(&r->to_host_list);
-			free_mux_rx(r);
-		}
-	}
-	spin_unlock_irqrestore(&rx->to_host_lock, flags);
-}
-
-
-static int init_usb(struct mux_dev *mux_dev)
-{
-	struct mux_rx *r;
-	struct rx_cxt *rx = &mux_dev->rx;
-	int ret = 0;
-	int i;
-
-	spin_lock_init(&mux_dev->write_lock);
-	INIT_LIST_HEAD(&rx->to_host_list);
-	INIT_LIST_HEAD(&rx->rx_submit_list);
-	INIT_LIST_HEAD(&rx->rx_free_list);
-	spin_lock_init(&rx->to_host_lock);
-	spin_lock_init(&rx->submit_list_lock);
-	spin_lock_init(&rx->free_list_lock);
-
-	for (i = 0; i < MAX_ISSUE_NUM * 2; i++) {
-		r = alloc_mux_rx();
-		if (r == NULL) {
-			ret = -ENOMEM;
-			break;
-		}
-
-		list_add(&r->free_list, &rx->rx_free_list);
-	}
-
-	INIT_DELAYED_WORK(&mux_dev->work_rx, do_rx);
-
-	return ret;
-}
-
-static int gdm_mux_probe(struct usb_interface *intf,
-			 const struct usb_device_id *id)
-{
-	struct mux_dev *mux_dev;
-	struct tty_dev *tty_dev;
-	u16 idVendor, idProduct;
-	int bInterfaceNumber;
-	int ret;
-	int i;
-	struct usb_device *usbdev = interface_to_usbdev(intf);
-
-	bInterfaceNumber = intf->cur_altsetting->desc.bInterfaceNumber;
-
-	idVendor = __le16_to_cpu(usbdev->descriptor.idVendor);
-	idProduct = __le16_to_cpu(usbdev->descriptor.idProduct);
-
-	pr_info("mux vid = 0x%04x pid = 0x%04x\n", idVendor, idProduct);
-
-	if (bInterfaceNumber != 2)
-		return -ENODEV;
-
-	mux_dev = kzalloc(sizeof(struct mux_dev), GFP_KERNEL);
-	if (!mux_dev)
-		return -ENOMEM;
-
-	tty_dev = kzalloc(sizeof(struct tty_dev), GFP_KERNEL);
-	if (!tty_dev) {
-		ret = -ENOMEM;
-		goto err_free_mux;
-	}
-
-	mux_dev->usbdev = usbdev;
-	mux_dev->control_intf = intf;
-
-	ret = init_usb(mux_dev);
-	if (ret)
-		goto err_free_usb;
-
-	tty_dev->priv_dev = (void *)mux_dev;
-	tty_dev->send_func = gdm_mux_send;
-	tty_dev->recv_func = gdm_mux_recv;
-	tty_dev->send_control = gdm_mux_send_control;
-
-	ret = register_lte_tty_device(tty_dev, &intf->dev);
-	if (ret)
-		goto err_unregister_tty;
-
-	for (i = 0; i < TTY_MAX_COUNT; i++)
-		mux_dev->tty_dev = tty_dev;
-
-	mux_dev->intf = intf;
-	mux_dev->usb_state = PM_NORMAL;
-
-	usb_get_dev(usbdev);
-	usb_set_intfdata(intf, tty_dev);
-
-	return 0;
-
-err_unregister_tty:
-	unregister_lte_tty_device(tty_dev);
-err_free_usb:
-	release_usb(mux_dev);
-	kfree(tty_dev);
-err_free_mux:
-	kfree(mux_dev);
-
-	return ret;
-}
-
-static void gdm_mux_disconnect(struct usb_interface *intf)
-{
-	struct tty_dev *tty_dev;
-	struct mux_dev *mux_dev;
-	struct usb_device *usbdev = interface_to_usbdev(intf);
-
-	tty_dev = usb_get_intfdata(intf);
-
-	mux_dev = tty_dev->priv_dev;
-
-	release_usb(mux_dev);
-	unregister_lte_tty_device(tty_dev);
-
-	kfree(mux_dev);
-	kfree(tty_dev);
-
-	usb_put_dev(usbdev);
-}
-
-static int gdm_mux_suspend(struct usb_interface *intf, pm_message_t pm_msg)
-{
-	struct tty_dev *tty_dev;
-	struct mux_dev *mux_dev;
-	struct rx_cxt *rx;
-	struct mux_rx *r, *r_next;
-	unsigned long flags;
-
-	tty_dev = usb_get_intfdata(intf);
-	mux_dev = tty_dev->priv_dev;
-	rx = &mux_dev->rx;
-
-	if (mux_dev->usb_state != PM_NORMAL) {
-		dev_err(intf->usb_dev, "usb suspend - invalid state\n");
-		return -1;
-	}
-
-	mux_dev->usb_state = PM_SUSPEND;
-
-
-	spin_lock_irqsave(&rx->submit_list_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->rx_submit_list,
-				 rx_submit_list) {
-		spin_unlock_irqrestore(&rx->submit_list_lock, flags);
-		usb_kill_urb(r->urb);
-		spin_lock_irqsave(&rx->submit_list_lock, flags);
-	}
-	spin_unlock_irqrestore(&rx->submit_list_lock, flags);
-
-	return 0;
-}
-
-static int gdm_mux_resume(struct usb_interface *intf)
-{
-	struct tty_dev *tty_dev;
-	struct mux_dev *mux_dev;
-	u8 i;
-
-	tty_dev = usb_get_intfdata(intf);
-	mux_dev = tty_dev->priv_dev;
-
-	if (mux_dev->usb_state != PM_SUSPEND) {
-		dev_err(intf->usb_dev, "usb resume - invalid state\n");
-		return -1;
-	}
-
-	mux_dev->usb_state = PM_NORMAL;
-
-	for (i = 0; i < MAX_ISSUE_NUM; i++)
-		gdm_mux_recv(mux_dev, mux_dev->rx_cb);
-
-	return 0;
-}
-
-static struct usb_driver gdm_mux_driver = {
-	.name = "gdm_mux",
-	.probe = gdm_mux_probe,
-	.disconnect = gdm_mux_disconnect,
-	.id_table = id_table,
-	.supports_autosuspend = 1,
-	.suspend = gdm_mux_suspend,
-	.resume = gdm_mux_resume,
-	.reset_resume = gdm_mux_resume,
-};
-
-static int __init gdm_usb_mux_init(void)
-{
-
-	mux_rx_wq = create_workqueue("mux_rx_wq");
-	if (mux_rx_wq == NULL) {
-		pr_err("work queue create fail\n");
-		return -1;
-	}
-
-	register_lte_tty_driver();
-
-	return usb_register(&gdm_mux_driver);
-}
-
-static void __exit gdm_usb_mux_exit(void)
-{
-	unregister_lte_tty_driver();
-
-	if (mux_rx_wq) {
-		flush_workqueue(mux_rx_wq);
-		destroy_workqueue(mux_rx_wq);
-	}
-
-	usb_deregister(&gdm_mux_driver);
-}
-
-module_init(gdm_usb_mux_init);
-module_exit(gdm_usb_mux_exit);
-
-MODULE_DESCRIPTION("GCT LTE TTY Device Driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/gdm724x/gdm_mux.h b/drivers/staging/gdm724x/gdm_mux.h
deleted file mode 100644
index 3d50383c6ced..000000000000
--- a/drivers/staging/gdm724x/gdm_mux.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _GDM_MUX_H_
-#define _GDM_MUX_H_
-
-#include <linux/types.h>
-#include <linux/usb.h>
-#include <linux/list.h>
-
-#include "gdm_tty.h"
-
-#define PM_NORMAL 0
-#define PM_SUSPEND 1
-
-#define USB_RT_ACM          (USB_TYPE_CLASS | USB_RECIP_INTERFACE)
-
-#define START_FLAG 0xA512485A
-#define MUX_HEADER_SIZE 14
-#define MUX_TX_MAX_SIZE (1024*10)
-#define MUX_RX_MAX_SIZE (1024*30)
-#define AT_PKT_TYPE 0xF011
-#define DM_PKT_TYPE 0xF010
-
-#define RETRY_TIMER 30 /* msec */
-
-struct mux_pkt_header {
-	__le32 start_flag;
-	__le32 seq_num;
-	__le32 payload_size;
-	__le16 packet_type;
-	unsigned char data[0];
-};
-
-struct mux_tx {
-	struct urb *urb;
-	u8 *buf;
-	int  len;
-	void (*callback)(void *cb_data);
-	void *cb_data;
-};
-
-struct mux_rx {
-	struct list_head free_list;
-	struct list_head rx_submit_list;
-	struct list_head to_host_list;
-	struct urb *urb;
-	u8 *buf;
-	void *mux_dev;
-	u32 offset;
-	u32 len;
-	int (*callback)(void *data,
-			int len,
-			int tty_index,
-			struct tty_dev *tty_dev,
-			int complete);
-};
-
-struct rx_cxt {
-	struct list_head to_host_list;
-	struct list_head rx_submit_list;
-	struct list_head rx_free_list;
-	spinlock_t to_host_lock;
-	spinlock_t submit_list_lock;
-	spinlock_t free_list_lock;
-};
-
-struct mux_dev {
-	struct usb_device *usbdev;
-	struct usb_interface *control_intf;
-	struct usb_interface *data_intf;
-	struct rx_cxt	rx;
-	struct delayed_work work_rx;
-	struct usb_interface *intf;
-	int usb_state;
-	int (*rx_cb)(void *data,
-		     int len,
-		     int tty_index,
-		     struct tty_dev *tty_dev,
-		     int complete);
-	spinlock_t write_lock;
-	struct tty_dev *tty_dev;
-};
-
-#endif /* _GDM_MUX_H_ */
diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
deleted file mode 100644
index 001348ccacf9..000000000000
--- a/drivers/staging/gdm724x/gdm_tty.c
+++ /dev/null
@@ -1,351 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/usb/cdc.h>
-#include <linux/serial.h>
-#include "gdm_tty.h"
-
-#define GDM_TTY_MAJOR 0
-#define GDM_TTY_MINOR 32
-
-#define ACM_CTRL_DTR 0x01
-#define ACM_CTRL_RTS 0x02
-#define ACM_CTRL_DSR 0x02
-#define ACM_CTRL_RI  0x08
-#define ACM_CTRL_DCD 0x01
-
-#define WRITE_SIZE 2048
-
-#define MUX_TX_MAX_SIZE 2048
-
-#define gdm_tty_send(n, d, l, i, c, b) (\
-	n->tty_dev->send_func(n->tty_dev->priv_dev, d, l, i, c, b))
-#define gdm_tty_recv(n, c) (\
-	n->tty_dev->recv_func(n->tty_dev->priv_dev, c))
-#define gdm_tty_send_control(n, r, v, d, l) (\
-	n->tty_dev->send_control(n->tty_dev->priv_dev, r, v, d, l))
-
-#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && gdm->port.count)
-
-static struct tty_driver *gdm_driver[TTY_MAX_COUNT];
-static struct gdm *gdm_table[TTY_MAX_COUNT][GDM_TTY_MINOR];
-static DEFINE_MUTEX(gdm_table_lock);
-
-static char *DRIVER_STRING[TTY_MAX_COUNT] = {"GCTATC", "GCTDM"};
-static char *DEVICE_STRING[TTY_MAX_COUNT] = {"GCT-ATC", "GCT-DM"};
-
-static void gdm_port_destruct(struct tty_port *port)
-{
-	struct gdm *gdm = container_of(port, struct gdm, port);
-
-	mutex_lock(&gdm_table_lock);
-	gdm_table[gdm->index][gdm->minor] = NULL;
-	mutex_unlock(&gdm_table_lock);
-
-	kfree(gdm);
-}
-
-static struct tty_port_operations gdm_port_ops = {
-	.destruct = gdm_port_destruct,
-};
-
-static int gdm_tty_install(struct tty_driver *driver, struct tty_struct *tty)
-{
-	struct gdm *gdm = NULL;
-	int ret;
-	int i;
-	int j;
-
-	j = GDM_TTY_MINOR;
-	for (i = 0; i < TTY_MAX_COUNT; i++) {
-		if (!strcmp(tty->driver->driver_name, DRIVER_STRING[i])) {
-			j = tty->index;
-			break;
-		}
-	}
-
-	if (j == GDM_TTY_MINOR)
-		return -ENODEV;
-
-	mutex_lock(&gdm_table_lock);
-	gdm = gdm_table[i][j];
-	if (gdm == NULL) {
-		mutex_unlock(&gdm_table_lock);
-		return -ENODEV;
-	}
-
-	tty_port_get(&gdm->port);
-
-	ret = tty_standard_install(driver, tty);
-	if (ret) {
-		tty_port_put(&gdm->port);
-		mutex_unlock(&gdm_table_lock);
-		return ret;
-	}
-
-	tty->driver_data = gdm;
-	mutex_unlock(&gdm_table_lock);
-
-	return 0;
-}
-
-static int gdm_tty_open(struct tty_struct *tty, struct file *filp)
-{
-	struct gdm *gdm = tty->driver_data;
-
-	return tty_port_open(&gdm->port, tty, filp);
-}
-
-static void gdm_tty_cleanup(struct tty_struct *tty)
-{
-	struct gdm *gdm = tty->driver_data;
-
-	tty_port_put(&gdm->port);
-}
-
-static void gdm_tty_hangup(struct tty_struct *tty)
-{
-	struct gdm *gdm = tty->driver_data;
-
-	tty_port_hangup(&gdm->port);
-}
-
-static void gdm_tty_close(struct tty_struct *tty, struct file *filp)
-{
-	struct gdm *gdm = tty->driver_data;
-
-	tty_port_close(&gdm->port, tty, filp);
-}
-
-static int gdm_tty_recv_complete(void *data,
-				 int len,
-				 int index,
-				 struct tty_dev *tty_dev,
-				 int complete)
-{
-	struct gdm *gdm = tty_dev->gdm[index];
-
-	if (!GDM_TTY_READY(gdm)) {
-		if (complete == RECV_PACKET_PROCESS_COMPLETE)
-			gdm_tty_recv(gdm, gdm_tty_recv_complete);
-		return TO_HOST_PORT_CLOSE;
-	}
-
-	if (data && len) {
-		if (tty_buffer_request_room(&gdm->port, len) == len) {
-			tty_insert_flip_string(&gdm->port, data, len);
-			tty_flip_buffer_push(&gdm->port);
-		} else {
-			return TO_HOST_BUFFER_REQUEST_FAIL;
-		}
-	}
-
-	if (complete == RECV_PACKET_PROCESS_COMPLETE)
-		gdm_tty_recv(gdm, gdm_tty_recv_complete);
-
-	return 0;
-}
-
-static void gdm_tty_send_complete(void *arg)
-{
-	struct gdm *gdm = (struct gdm *)arg;
-
-	if (!GDM_TTY_READY(gdm))
-		return;
-
-	tty_port_tty_wakeup(&gdm->port);
-}
-
-static int gdm_tty_write(struct tty_struct *tty, const unsigned char *buf,
-			 int len)
-{
-	struct gdm *gdm = tty->driver_data;
-	int remain = len;
-	int sent_len = 0;
-	int sending_len = 0;
-
-	if (!GDM_TTY_READY(gdm))
-		return -ENODEV;
-
-	if (!len)
-		return 0;
-
-	while (1) {
-		sending_len = remain > MUX_TX_MAX_SIZE ? MUX_TX_MAX_SIZE :
-							 remain;
-		gdm_tty_send(gdm,
-			     (void *)(buf+sent_len),
-			     sending_len,
-			     gdm->index,
-			     gdm_tty_send_complete,
-			     gdm
-			    );
-		sent_len += sending_len;
-		remain -= sending_len;
-		if (remain <= 0)
-			break;
-	}
-
-	return len;
-}
-
-static int gdm_tty_write_room(struct tty_struct *tty)
-{
-	struct gdm *gdm = tty->driver_data;
-
-	if (!GDM_TTY_READY(gdm))
-		return -ENODEV;
-
-	return WRITE_SIZE;
-}
-
-int register_lte_tty_device(struct tty_dev *tty_dev, struct device *device)
-{
-	struct gdm *gdm;
-	int i;
-	int j;
-
-	for (i = 0; i < TTY_MAX_COUNT; i++) {
-
-		gdm = kmalloc(sizeof(struct gdm), GFP_KERNEL);
-		if (!gdm)
-			return -ENOMEM;
-
-		mutex_lock(&gdm_table_lock);
-		for (j = 0; j < GDM_TTY_MINOR; j++) {
-			if (!gdm_table[i][j])
-				break;
-		}
-
-		if (j == GDM_TTY_MINOR) {
-			kfree(gdm);
-			mutex_unlock(&gdm_table_lock);
-			return -EINVAL;
-		}
-
-		gdm_table[i][j] = gdm;
-		mutex_unlock(&gdm_table_lock);
-
-		tty_dev->gdm[i] = gdm;
-		tty_port_init(&gdm->port);
-
-		gdm->port.ops = &gdm_port_ops;
-		gdm->index = i;
-		gdm->minor = j;
-		gdm->tty_dev = tty_dev;
-
-		tty_port_register_device(&gdm->port, gdm_driver[i],
-					 gdm->minor, device);
-	}
-
-	for (i = 0; i < MAX_ISSUE_NUM; i++)
-		gdm_tty_recv(gdm, gdm_tty_recv_complete);
-
-	return 0;
-}
-
-void unregister_lte_tty_device(struct tty_dev *tty_dev)
-{
-	struct gdm *gdm;
-	struct tty_struct *tty;
-	int i;
-
-	for (i = 0; i < TTY_MAX_COUNT; i++) {
-		gdm = tty_dev->gdm[i];
-		if (!gdm)
-			continue;
-
-		mutex_lock(&gdm_table_lock);
-		gdm_table[gdm->index][gdm->minor] = NULL;
-		mutex_unlock(&gdm_table_lock);
-
-		tty = tty_port_tty_get(&gdm->port);
-		if (tty) {
-			tty_vhangup(tty);
-			tty_kref_put(tty);
-		}
-
-		tty_unregister_device(gdm_driver[i], gdm->minor);
-		tty_port_put(&gdm->port);
-	}
-}
-
-static const struct tty_operations gdm_tty_ops = {
-	.install =	gdm_tty_install,
-	.open =		gdm_tty_open,
-	.close =	gdm_tty_close,
-	.cleanup =	gdm_tty_cleanup,
-	.hangup =	gdm_tty_hangup,
-	.write =	gdm_tty_write,
-	.write_room =	gdm_tty_write_room,
-};
-
-int register_lte_tty_driver(void)
-{
-	struct tty_driver *tty_driver;
-	int i;
-	int ret;
-
-	for (i = 0; i < TTY_MAX_COUNT; i++) {
-		tty_driver = alloc_tty_driver(GDM_TTY_MINOR);
-		if (!tty_driver)
-			return -ENOMEM;
-
-		tty_driver->owner = THIS_MODULE;
-		tty_driver->driver_name = DRIVER_STRING[i];
-		tty_driver->name = DEVICE_STRING[i];
-		tty_driver->major = GDM_TTY_MAJOR;
-		tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
-		tty_driver->subtype = SERIAL_TYPE_NORMAL;
-		tty_driver->flags = TTY_DRIVER_REAL_RAW |
-					TTY_DRIVER_DYNAMIC_DEV;
-		tty_driver->init_termios = tty_std_termios;
-		tty_driver->init_termios.c_cflag = B9600 | CS8 | HUPCL | CLOCAL;
-		tty_driver->init_termios.c_lflag = ISIG | ICANON | IEXTEN;
-		tty_set_operations(tty_driver, &gdm_tty_ops);
-
-		ret = tty_register_driver(tty_driver);
-		if (ret) {
-			put_tty_driver(tty_driver);
-			return ret;
-		}
-
-		gdm_driver[i] = tty_driver;
-	}
-
-	return ret;
-}
-
-void unregister_lte_tty_driver(void)
-{
-	struct tty_driver *tty_driver;
-	int i;
-
-	for (i = 0; i < TTY_MAX_COUNT; i++) {
-		tty_driver = gdm_driver[i];
-		if (tty_driver) {
-			tty_unregister_driver(tty_driver);
-			put_tty_driver(tty_driver);
-		}
-	}
-}
-
diff --git a/drivers/staging/gdm724x/gdm_tty.h b/drivers/staging/gdm724x/gdm_tty.h
deleted file mode 100644
index 297438b4ddcb..000000000000
--- a/drivers/staging/gdm724x/gdm_tty.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _GDM_TTY_H_
-#define _GDM_TTY_H_
-
-#include <linux/types.h>
-#include <linux/tty.h>
-
-
-#define TTY_MAX_COUNT		2
-
-#define MAX_ISSUE_NUM 3
-
-enum TO_HOST_RESULT {
-	TO_HOST_BUFFER_REQUEST_FAIL = 1,
-	TO_HOST_PORT_CLOSE = 2,
-	TO_HOST_INVALID_PACKET = 3,
-};
-
-enum RECV_PACKET_PROCESS {
-	RECV_PACKET_PROCESS_COMPLETE = 0,
-	RECV_PACKET_PROCESS_CONTINUE = 1,
-};
-
-struct gdm {
-	struct tty_dev *tty_dev;
-	struct tty_port port;
-	unsigned int index;
-	unsigned int minor;
-};
-
-struct tty_dev {
-	void *priv_dev;
-	int (*send_func)(void *priv_dev,
-			 void *data,
-			 int len,
-			 int tty_index,
-			 void (*cb)(void *cb_data),
-			 void *cb_data);
-	int (*recv_func)(void *priv_dev,
-			 int (*cb)(void *data,
-				   int len,
-				   int tty_index,
-				   struct tty_dev *tty_dev,
-				   int complete));
-	int (*send_control)(void *priv_dev,
-			    int request,
-			    int value,
-			    void *data,
-			    int len);
-	struct gdm *gdm[2];
-};
-
-int register_lte_tty_driver(void);
-void unregister_lte_tty_driver(void);
-int register_lte_tty_device(struct tty_dev *tty_dev, struct device *dev);
-void unregister_lte_tty_device(struct tty_dev *tty_dev);
-
-#endif /* _GDM_USB_H_ */
-
diff --git a/drivers/staging/gdm724x/gdm_usb.c b/drivers/staging/gdm724x/gdm_usb.c
deleted file mode 100644
index ed1a12f504e2..000000000000
--- a/drivers/staging/gdm724x/gdm_usb.c
+++ /dev/null
@@ -1,1041 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/usb.h>
-#include <linux/sched.h>
-#include <linux/kthread.h>
-#include <linux/usb/cdc.h>
-#include <linux/wait.h>
-#include <linux/if_ether.h>
-#include <linux/pm_runtime.h>
-
-#include "gdm_usb.h"
-#include "gdm_lte.h"
-#include "hci.h"
-#include "hci_packet.h"
-#include "gdm_endian.h"
-
-#define USB_DEVICE_CDC_DATA(vid, pid) \
-	.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
-		USB_DEVICE_ID_MATCH_INT_CLASS | \
-		USB_DEVICE_ID_MATCH_INT_SUBCLASS,\
-	.idVendor = vid,\
-	.idProduct = pid,\
-	.bInterfaceClass = USB_CLASS_COMM,\
-	.bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET
-
-#define USB_DEVICE_MASS_DATA(vid, pid) \
-	.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
-		USB_DEVICE_ID_MATCH_INT_INFO,\
-	.idVendor = vid,\
-	.idProduct = pid,\
-	.bInterfaceSubClass = USB_SC_SCSI, \
-	.bInterfaceClass = USB_CLASS_MASS_STORAGE,\
-	.bInterfaceProtocol = USB_PR_BULK
-
-static const struct usb_device_id id_table[] = {
-	{ USB_DEVICE_CDC_DATA(VID_GCT, PID_GDM7240) }, /* GCT GDM7240 */
-	{ USB_DEVICE_CDC_DATA(VID_GCT, PID_GDM7243) }, /* GCT GDM7243 */
-	{ }
-};
-
-MODULE_DEVICE_TABLE(usb, id_table);
-
-static struct workqueue_struct *usb_tx_wq;
-static struct workqueue_struct *usb_rx_wq;
-
-static void do_tx(struct work_struct *work);
-static void do_rx(struct work_struct *work);
-
-static int gdm_usb_recv(void *priv_dev,
-			int (*cb)(void *cb_data,
-				void *data, int len, int context),
-			void *cb_data,
-			int context);
-
-static int request_mac_address(struct lte_udev *udev)
-{
-	u8 buf[16] = {0,};
-	struct hci_packet *hci = (struct hci_packet *)buf;
-	struct usb_device *usbdev = udev->usbdev;
-	int actual;
-	int ret = -1;
-
-	hci->cmd_evt = gdm_cpu_to_dev16(&udev->gdm_ed, LTE_GET_INFORMATION);
-	hci->len = gdm_cpu_to_dev16(&udev->gdm_ed, 1);
-	hci->data[0] = MAC_ADDRESS;
-
-	ret = usb_bulk_msg(usbdev, usb_sndbulkpipe(usbdev, 2), buf, 5,
-		     &actual, 1000);
-
-	udev->request_mac_addr = 1;
-
-	return ret;
-}
-
-static struct usb_tx *alloc_tx_struct(int len)
-{
-	struct usb_tx *t = NULL;
-	int ret = 0;
-
-	t = kzalloc(sizeof(struct usb_tx), GFP_ATOMIC);
-	if (!t) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	t->urb = usb_alloc_urb(0, GFP_ATOMIC);
-	if (!(len % 512))
-		len++;
-
-	t->buf = kmalloc(len, GFP_ATOMIC);
-	if (!t->urb || !t->buf) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-out:
-	if (ret < 0) {
-		if (t) {
-			usb_free_urb(t->urb);
-			kfree(t->buf);
-			kfree(t);
-		}
-		return NULL;
-	}
-
-	return t;
-}
-
-static struct usb_tx_sdu *alloc_tx_sdu_struct(void)
-{
-	struct usb_tx_sdu *t_sdu;
-
-	t_sdu = kzalloc(sizeof(struct usb_tx_sdu), GFP_KERNEL);
-	if (!t_sdu)
-		return NULL;
-
-	t_sdu->buf = kmalloc(SDU_BUF_SIZE, GFP_KERNEL);
-	if (!t_sdu->buf) {
-		kfree(t_sdu);
-		return NULL;
-	}
-
-	return t_sdu;
-}
-
-static void free_tx_struct(struct usb_tx *t)
-{
-	if (t) {
-		usb_free_urb(t->urb);
-		kfree(t->buf);
-		kfree(t);
-	}
-}
-
-static void free_tx_sdu_struct(struct usb_tx_sdu *t_sdu)
-{
-	if (t_sdu) {
-		kfree(t_sdu->buf);
-		kfree(t_sdu);
-	}
-}
-
-static struct usb_tx_sdu *get_tx_sdu_struct(struct tx_cxt *tx, int *no_spc)
-{
-	struct usb_tx_sdu *t_sdu;
-
-	if (list_empty(&tx->free_list))
-		return NULL;
-
-	t_sdu = list_entry(tx->free_list.next, struct usb_tx_sdu, list);
-	list_del(&t_sdu->list);
-
-	tx->avail_count--;
-
-	*no_spc = list_empty(&tx->free_list) ? 1 : 0;
-
-	return t_sdu;
-}
-
-static void put_tx_struct(struct tx_cxt *tx, struct usb_tx_sdu *t_sdu)
-{
-	list_add_tail(&t_sdu->list, &tx->free_list);
-	tx->avail_count++;
-}
-
-static struct usb_rx *alloc_rx_struct(void)
-{
-	struct usb_rx *r = NULL;
-	int ret = 0;
-
-	r = kmalloc(sizeof(struct usb_rx), GFP_KERNEL);
-	if (!r) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	r->urb = usb_alloc_urb(0, GFP_KERNEL);
-	r->buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL);
-	if (!r->urb || !r->buf) {
-		ret = -ENOMEM;
-		goto out;
-	}
-out:
-
-	if (ret < 0) {
-		if (r) {
-			usb_free_urb(r->urb);
-			kfree(r->buf);
-			kfree(r);
-		}
-		return NULL;
-	}
-
-	return r;
-}
-
-static void free_rx_struct(struct usb_rx *r)
-{
-	if (r) {
-		usb_free_urb(r->urb);
-		kfree(r->buf);
-		kfree(r);
-	}
-}
-
-static struct usb_rx *get_rx_struct(struct rx_cxt *rx, int *no_spc)
-{
-	struct usb_rx *r;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rx->rx_lock, flags);
-
-	if (list_empty(&rx->free_list)) {
-		spin_unlock_irqrestore(&rx->rx_lock, flags);
-		return NULL;
-	}
-
-	r = list_entry(rx->free_list.next, struct usb_rx, free_list);
-	list_del(&r->free_list);
-
-	rx->avail_count--;
-
-	*no_spc = list_empty(&rx->free_list) ? 1 : 0;
-
-	spin_unlock_irqrestore(&rx->rx_lock, flags);
-
-	return r;
-}
-
-static void put_rx_struct(struct rx_cxt *rx, struct usb_rx *r)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&rx->rx_lock, flags);
-
-	list_add_tail(&r->free_list, &rx->free_list);
-	rx->avail_count++;
-
-	spin_unlock_irqrestore(&rx->rx_lock, flags);
-}
-
-static void release_usb(struct lte_udev *udev)
-{
-	struct rx_cxt	*rx = &udev->rx;
-	struct tx_cxt	*tx = &udev->tx;
-	struct usb_tx	*t, *t_next;
-	struct usb_rx	*r, *r_next;
-	struct usb_tx_sdu	*t_sdu, *t_sdu_next;
-	unsigned long flags;
-
-	spin_lock_irqsave(&tx->lock, flags);
-	list_for_each_entry_safe(t_sdu, t_sdu_next, &tx->sdu_list, list) {
-		list_del(&t_sdu->list);
-		free_tx_sdu_struct(t_sdu);
-	}
-
-	list_for_each_entry_safe(t, t_next, &tx->hci_list, list) {
-		list_del(&t->list);
-		free_tx_struct(t);
-	}
-
-	list_for_each_entry_safe(t_sdu, t_sdu_next, &tx->free_list, list) {
-		list_del(&t_sdu->list);
-		free_tx_sdu_struct(t_sdu);
-	}
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	spin_lock_irqsave(&rx->submit_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->rx_submit_list,
-				 rx_submit_list) {
-		spin_unlock_irqrestore(&rx->submit_lock, flags);
-		usb_kill_urb(r->urb);
-		spin_lock_irqsave(&rx->submit_lock, flags);
-	}
-	spin_unlock_irqrestore(&rx->submit_lock, flags);
-
-	spin_lock_irqsave(&rx->rx_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->free_list, free_list) {
-		list_del(&r->free_list);
-		free_rx_struct(r);
-	}
-	spin_unlock_irqrestore(&rx->rx_lock, flags);
-
-	spin_lock_irqsave(&rx->to_host_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->to_host_list, to_host_list) {
-		if (r->index == (void *)udev) {
-			list_del(&r->to_host_list);
-			free_rx_struct(r);
-		}
-	}
-	spin_unlock_irqrestore(&rx->to_host_lock, flags);
-}
-
-static int init_usb(struct lte_udev *udev)
-{
-	int ret = 0;
-	int i;
-	struct tx_cxt *tx = &udev->tx;
-	struct rx_cxt *rx = &udev->rx;
-	struct usb_tx_sdu *t_sdu = NULL;
-	struct usb_rx *r = NULL;
-
-	udev->send_complete = 1;
-	udev->tx_stop = 0;
-	udev->request_mac_addr = 0;
-	udev->usb_state = PM_NORMAL;
-
-	INIT_LIST_HEAD(&tx->sdu_list);
-	INIT_LIST_HEAD(&tx->hci_list);
-	INIT_LIST_HEAD(&tx->free_list);
-	INIT_LIST_HEAD(&rx->rx_submit_list);
-	INIT_LIST_HEAD(&rx->free_list);
-	INIT_LIST_HEAD(&rx->to_host_list);
-	spin_lock_init(&tx->lock);
-	spin_lock_init(&rx->rx_lock);
-	spin_lock_init(&rx->submit_lock);
-	spin_lock_init(&rx->to_host_lock);
-
-	tx->avail_count = 0;
-	rx->avail_count = 0;
-
-	udev->rx_cb = NULL;
-
-	for (i = 0; i < MAX_NUM_SDU_BUF; i++) {
-		t_sdu = alloc_tx_sdu_struct();
-		if (t_sdu == NULL) {
-			ret = -ENOMEM;
-			goto fail;
-		}
-
-		list_add(&t_sdu->list, &tx->free_list);
-		tx->avail_count++;
-	}
-
-	for (i = 0; i < MAX_RX_SUBMIT_COUNT*2; i++) {
-		r = alloc_rx_struct();
-		if (r == NULL) {
-			ret = -ENOMEM;
-			goto fail;
-		}
-
-		list_add(&r->free_list, &rx->free_list);
-		rx->avail_count++;
-	}
-	INIT_DELAYED_WORK(&udev->work_tx, do_tx);
-	INIT_DELAYED_WORK(&udev->work_rx, do_rx);
-	return 0;
-fail:
-	release_usb(udev);
-	return ret;
-}
-
-static int set_mac_address(u8 *data, void *arg)
-{
-	struct phy_dev *phy_dev = (struct phy_dev *)arg;
-	struct lte_udev *udev = phy_dev->priv_dev;
-	struct tlv *tlv = (struct tlv *)data;
-	u8 mac_address[ETH_ALEN] = {0, };
-
-	if (tlv->type == MAC_ADDRESS && udev->request_mac_addr) {
-		memcpy(mac_address, tlv->data, tlv->len);
-
-		if (register_lte_device(phy_dev,
-				&udev->intf->dev, mac_address) < 0)
-			pr_err("register lte device failed\n");
-
-		udev->request_mac_addr = 0;
-
-		return 1;
-	}
-
-	return 0;
-}
-
-static void do_rx(struct work_struct *work)
-{
-	struct lte_udev *udev =
-		container_of(work, struct lte_udev, work_rx.work);
-	struct rx_cxt *rx = &udev->rx;
-	struct usb_rx *r;
-	struct hci_packet *hci;
-	struct phy_dev *phy_dev;
-	u16 cmd_evt;
-	int ret;
-	unsigned long flags;
-
-	while (1) {
-		spin_lock_irqsave(&rx->to_host_lock, flags);
-		if (list_empty(&rx->to_host_list)) {
-			spin_unlock_irqrestore(&rx->to_host_lock, flags);
-			break;
-		}
-		r = list_entry(rx->to_host_list.next,
-			struct usb_rx, to_host_list);
-		list_del(&r->to_host_list);
-		spin_unlock_irqrestore(&rx->to_host_lock, flags);
-
-		phy_dev = (struct phy_dev *)r->cb_data;
-		udev = (struct lte_udev *)phy_dev->priv_dev;
-		hci = (struct hci_packet *)r->buf;
-		cmd_evt = gdm_dev16_to_cpu(&udev->gdm_ed, hci->cmd_evt);
-
-		switch (cmd_evt) {
-		case LTE_GET_INFORMATION_RESULT:
-			if (set_mac_address(hci->data, r->cb_data) == 0) {
-				ret = r->callback(r->cb_data,
-						  r->buf,
-						  r->urb->actual_length,
-						  KERNEL_THREAD);
-			}
-			break;
-
-		default:
-			if (r->callback) {
-				ret = r->callback(r->cb_data,
-						  r->buf,
-						  r->urb->actual_length,
-						  KERNEL_THREAD);
-
-				if (ret == -EAGAIN)
-					pr_err("failed to send received data\n");
-			}
-			break;
-		}
-
-		put_rx_struct(rx, r);
-
-		gdm_usb_recv(udev,
-			     r->callback,
-			     r->cb_data,
-			     USB_COMPLETE);
-	}
-}
-
-static void remove_rx_submit_list(struct usb_rx *r, struct rx_cxt *rx)
-{
-	unsigned long flags;
-	struct usb_rx	*r_remove, *r_remove_next;
-
-	spin_lock_irqsave(&rx->submit_lock, flags);
-	list_for_each_entry_safe(r_remove, r_remove_next,
-				 &rx->rx_submit_list, rx_submit_list) {
-		if (r == r_remove) {
-			list_del(&r->rx_submit_list);
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&rx->submit_lock, flags);
-}
-
-static void gdm_usb_rcv_complete(struct urb *urb)
-{
-	struct usb_rx *r = urb->context;
-	struct rx_cxt *rx = r->rx;
-	unsigned long flags;
-	struct lte_udev *udev = container_of(r->rx, struct lte_udev, rx);
-	struct usb_device *usbdev = udev->usbdev;
-
-	remove_rx_submit_list(r, rx);
-
-	if (!urb->status && r->callback) {
-		spin_lock_irqsave(&rx->to_host_lock, flags);
-		list_add_tail(&r->to_host_list, &rx->to_host_list);
-		queue_work(usb_rx_wq, &udev->work_rx.work);
-		spin_unlock_irqrestore(&rx->to_host_lock, flags);
-	} else {
-		if (urb->status && udev->usb_state == PM_NORMAL)
-			dev_err(&urb->dev->dev, "%s: urb status error %d\n",
-			       __func__, urb->status);
-
-		put_rx_struct(rx, r);
-	}
-
-	usb_mark_last_busy(usbdev);
-}
-
-static int gdm_usb_recv(void *priv_dev,
-			int (*cb)(void *cb_data,
-				void *data, int len, int context),
-			void *cb_data,
-			int context)
-{
-	struct lte_udev *udev = priv_dev;
-	struct usb_device *usbdev = udev->usbdev;
-	struct rx_cxt *rx = &udev->rx;
-	struct usb_rx *r;
-	int no_spc;
-	int ret;
-	unsigned long flags;
-
-	if (!udev->usbdev) {
-		pr_err("invalid device\n");
-		return -ENODEV;
-	}
-
-	r = get_rx_struct(rx, &no_spc);
-	if (!r) {
-		pr_err("Out of Memory\n");
-		return -ENOMEM;
-	}
-
-	udev->rx_cb = cb;
-	r->callback = cb;
-	r->cb_data = cb_data;
-	r->index = (void *)udev;
-	r->rx = rx;
-
-	usb_fill_bulk_urb(r->urb,
-			  usbdev,
-			  usb_rcvbulkpipe(usbdev, 0x83),
-			  r->buf,
-			  RX_BUF_SIZE,
-			  gdm_usb_rcv_complete,
-			  r);
-
-	spin_lock_irqsave(&rx->submit_lock, flags);
-	list_add_tail(&r->rx_submit_list, &rx->rx_submit_list);
-	spin_unlock_irqrestore(&rx->submit_lock, flags);
-
-	if (context == KERNEL_THREAD)
-		ret = usb_submit_urb(r->urb, GFP_KERNEL);
-	else
-		ret = usb_submit_urb(r->urb, GFP_ATOMIC);
-
-	if (ret) {
-		spin_lock_irqsave(&rx->submit_lock, flags);
-		list_del(&r->rx_submit_list);
-		spin_unlock_irqrestore(&rx->submit_lock, flags);
-
-		pr_err("usb_submit_urb failed (%p)\n", r);
-		put_rx_struct(rx, r);
-	}
-
-	return ret;
-}
-
-static void gdm_usb_send_complete(struct urb *urb)
-{
-	struct usb_tx *t = urb->context;
-	struct tx_cxt *tx = t->tx;
-	struct lte_udev *udev = container_of(tx, struct lte_udev, tx);
-	unsigned long flags;
-
-	if (urb->status == -ECONNRESET) {
-		dev_info(&urb->dev->dev, "CONNRESET\n");
-		return;
-	}
-
-	if (t->callback)
-		t->callback(t->cb_data);
-
-	free_tx_struct(t);
-
-	spin_lock_irqsave(&tx->lock, flags);
-	udev->send_complete = 1;
-	queue_work(usb_tx_wq, &udev->work_tx.work);
-	spin_unlock_irqrestore(&tx->lock, flags);
-}
-
-static int send_tx_packet(struct usb_device *usbdev, struct usb_tx *t, u32 len)
-{
-	int ret = 0;
-
-	if (!(len%512))
-		len++;
-
-	usb_fill_bulk_urb(t->urb,
-			  usbdev,
-			  usb_sndbulkpipe(usbdev, 2),
-			  t->buf,
-			  len,
-			  gdm_usb_send_complete,
-			  t);
-
-	ret = usb_submit_urb(t->urb, GFP_ATOMIC);
-
-	if (ret)
-		dev_err(&usbdev->dev, "usb_submit_urb failed: %d\n",
-			ret);
-
-	usb_mark_last_busy(usbdev);
-
-	return ret;
-}
-
-static u32 packet_aggregation(struct lte_udev *udev, u8 *send_buf)
-{
-	struct tx_cxt *tx = &udev->tx;
-	struct usb_tx_sdu *t_sdu = NULL;
-	struct multi_sdu *multi_sdu = (struct multi_sdu *)send_buf;
-	u16 send_len = 0;
-	u16 num_packet = 0;
-	unsigned long flags;
-
-	multi_sdu->cmd_evt = gdm_cpu_to_dev16(&udev->gdm_ed, LTE_TX_MULTI_SDU);
-
-	while (num_packet < MAX_PACKET_IN_MULTI_SDU) {
-		spin_lock_irqsave(&tx->lock, flags);
-		if (list_empty(&tx->sdu_list)) {
-			spin_unlock_irqrestore(&tx->lock, flags);
-			break;
-		}
-
-		t_sdu = list_entry(tx->sdu_list.next, struct usb_tx_sdu, list);
-		if (send_len + t_sdu->len > MAX_SDU_SIZE) {
-			spin_unlock_irqrestore(&tx->lock, flags);
-			break;
-		}
-
-		list_del(&t_sdu->list);
-		spin_unlock_irqrestore(&tx->lock, flags);
-
-		memcpy(multi_sdu->data + send_len, t_sdu->buf, t_sdu->len);
-
-		send_len += (t_sdu->len + 3) & 0xfffc;
-		num_packet++;
-
-		if (tx->avail_count > 10)
-			t_sdu->callback(t_sdu->cb_data);
-
-		spin_lock_irqsave(&tx->lock, flags);
-		put_tx_struct(tx, t_sdu);
-		spin_unlock_irqrestore(&tx->lock, flags);
-	}
-
-	multi_sdu->len = gdm_cpu_to_dev16(&udev->gdm_ed, send_len);
-	multi_sdu->num_packet = gdm_cpu_to_dev16(&udev->gdm_ed, num_packet);
-
-	return send_len + offsetof(struct multi_sdu, data);
-}
-
-static void do_tx(struct work_struct *work)
-{
-	struct lte_udev *udev =
-		container_of(work, struct lte_udev, work_tx.work);
-	struct usb_device *usbdev = udev->usbdev;
-	struct tx_cxt *tx = &udev->tx;
-	struct usb_tx *t = NULL;
-	int is_send = 0;
-	u32 len = 0;
-	unsigned long flags;
-
-	if (!usb_autopm_get_interface(udev->intf))
-		usb_autopm_put_interface(udev->intf);
-
-	if (udev->usb_state == PM_SUSPEND)
-		return;
-
-	spin_lock_irqsave(&tx->lock, flags);
-	if (!udev->send_complete) {
-		spin_unlock_irqrestore(&tx->lock, flags);
-		return;
-	}
-	udev->send_complete = 0;
-
-	if (!list_empty(&tx->hci_list)) {
-		t = list_entry(tx->hci_list.next, struct usb_tx, list);
-		list_del(&t->list);
-		len = t->len;
-		t->is_sdu = 0;
-		is_send = 1;
-	} else if (!list_empty(&tx->sdu_list)) {
-		if (udev->tx_stop) {
-			udev->send_complete = 1;
-			spin_unlock_irqrestore(&tx->lock, flags);
-			return;
-		}
-
-		t = alloc_tx_struct(TX_BUF_SIZE);
-		if (t == NULL) {
-			spin_unlock_irqrestore(&tx->lock, flags);
-			return;
-		}
-		t->callback = NULL;
-		t->tx = tx;
-		t->is_sdu = 1;
-		is_send = 1;
-	}
-
-	if (!is_send) {
-		udev->send_complete = 1;
-		spin_unlock_irqrestore(&tx->lock, flags);
-		return;
-	}
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	if (t->is_sdu)
-		len = packet_aggregation(udev, t->buf);
-
-	if (send_tx_packet(usbdev, t, len)) {
-		pr_err("send_tx_packet failed\n");
-		t->callback = NULL;
-		gdm_usb_send_complete(t->urb);
-	}
-}
-
-#define SDU_PARAM_LEN 12
-static int gdm_usb_sdu_send(void *priv_dev, void *data, int len,
-				unsigned int dftEpsId, unsigned int epsId,
-				void (*cb)(void *data), void *cb_data,
-			    int dev_idx, int nic_type)
-{
-	struct lte_udev *udev = priv_dev;
-	struct tx_cxt *tx = &udev->tx;
-	struct usb_tx_sdu *t_sdu;
-	struct sdu *sdu = NULL;
-	unsigned long flags;
-	int no_spc = 0;
-	u16 send_len;
-
-	if (!udev->usbdev) {
-		pr_err("sdu send - invalid device\n");
-		return TX_NO_DEV;
-	}
-
-	spin_lock_irqsave(&tx->lock, flags);
-	t_sdu = get_tx_sdu_struct(tx, &no_spc);
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	if (t_sdu == NULL) {
-		pr_err("sdu send - free list empty\n");
-		return TX_NO_SPC;
-	}
-
-	sdu = (struct sdu *)t_sdu->buf;
-	sdu->cmd_evt = gdm_cpu_to_dev16(&udev->gdm_ed, LTE_TX_SDU);
-	if (nic_type == NIC_TYPE_ARP) {
-		send_len = len + SDU_PARAM_LEN;
-	    memcpy(sdu->data, data, len);
-	} else {
-	    send_len = len - ETH_HLEN;
-	    send_len += SDU_PARAM_LEN;
-	    memcpy(sdu->data, data+ETH_HLEN, len-ETH_HLEN);
-	}
-
-	sdu->len = gdm_cpu_to_dev16(&udev->gdm_ed, send_len);
-	sdu->dftEpsId = gdm_cpu_to_dev32(&udev->gdm_ed, dftEpsId);
-	sdu->bearer_ID = gdm_cpu_to_dev32(&udev->gdm_ed, epsId);
-	sdu->nic_type = gdm_cpu_to_dev32(&udev->gdm_ed, nic_type);
-
-	t_sdu->len = send_len + HCI_HEADER_SIZE;
-	t_sdu->callback = cb;
-	t_sdu->cb_data = cb_data;
-
-	spin_lock_irqsave(&tx->lock, flags);
-	list_add_tail(&t_sdu->list, &tx->sdu_list);
-	queue_work(usb_tx_wq, &udev->work_tx.work);
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	if (no_spc)
-		return TX_NO_BUFFER;
-
-	return 0;
-}
-
-static int gdm_usb_hci_send(void *priv_dev, void *data, int len,
-			void (*cb)(void *data), void *cb_data)
-{
-	struct lte_udev *udev = priv_dev;
-	struct tx_cxt *tx = &udev->tx;
-	struct usb_tx *t;
-	unsigned long flags;
-
-	if (!udev->usbdev) {
-		pr_err("hci send - invalid device\n");
-		return -ENODEV;
-	}
-
-	t = alloc_tx_struct(len);
-	if (t == NULL) {
-		pr_err("hci_send - out of memory\n");
-		return -ENOMEM;
-	}
-
-	memcpy(t->buf, data, len);
-	t->callback = cb;
-	t->cb_data = cb_data;
-	t->len = len;
-	t->tx = tx;
-	t->is_sdu = 0;
-
-	spin_lock_irqsave(&tx->lock, flags);
-	list_add_tail(&t->list, &tx->hci_list);
-	queue_work(usb_tx_wq, &udev->work_tx.work);
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	return 0;
-}
-
-static struct gdm_endian *gdm_usb_get_endian(void *priv_dev)
-{
-	struct lte_udev *udev = priv_dev;
-
-	return &udev->gdm_ed;
-}
-
-static int gdm_usb_probe(struct usb_interface *intf,
-	const struct usb_device_id *id)
-{
-	int ret = 0;
-	struct phy_dev *phy_dev = NULL;
-	struct lte_udev *udev = NULL;
-	u16 idVendor, idProduct;
-	int bInterfaceNumber;
-	struct usb_device *usbdev = interface_to_usbdev(intf);
-
-	bInterfaceNumber = intf->cur_altsetting->desc.bInterfaceNumber;
-	idVendor = __le16_to_cpu(usbdev->descriptor.idVendor);
-	idProduct = __le16_to_cpu(usbdev->descriptor.idProduct);
-
-	pr_info("net vid = 0x%04x pid = 0x%04x\n", idVendor, idProduct);
-
-	if (bInterfaceNumber > NETWORK_INTERFACE) {
-		pr_info("not a network device\n");
-		return -ENODEV;
-	}
-
-	phy_dev = kzalloc(sizeof(struct phy_dev), GFP_KERNEL);
-	if (!phy_dev)
-		return -ENOMEM;
-
-	udev = kzalloc(sizeof(struct lte_udev), GFP_KERNEL);
-	if (!udev) {
-		ret = -ENOMEM;
-		goto err_udev;
-	}
-
-	phy_dev->priv_dev = (void *)udev;
-	phy_dev->send_hci_func = gdm_usb_hci_send;
-	phy_dev->send_sdu_func = gdm_usb_sdu_send;
-	phy_dev->rcv_func = gdm_usb_recv;
-	phy_dev->get_endian = gdm_usb_get_endian;
-
-	udev->usbdev = usbdev;
-	ret = init_usb(udev);
-	if (ret < 0) {
-		dev_err(intf->usb_dev, "init_usb func failed\n");
-		goto err_init_usb;
-	}
-	udev->intf = intf;
-
-	intf->needs_remote_wakeup = 1;
-	usb_enable_autosuspend(usbdev);
-	pm_runtime_set_autosuspend_delay(&usbdev->dev, AUTO_SUSPEND_TIMER);
-
-	/* List up hosts with big endians, otherwise,
-	 * defaults to little endian
-	 */
-	if (idProduct == PID_GDM7243)
-		gdm_set_endian(&udev->gdm_ed, ENDIANNESS_BIG);
-	else
-		gdm_set_endian(&udev->gdm_ed, ENDIANNESS_LITTLE);
-
-	ret = request_mac_address(udev);
-	if (ret < 0) {
-		dev_err(intf->usb_dev, "request Mac address failed\n");
-		goto err_mac_address;
-	}
-
-	start_rx_proc(phy_dev);
-	usb_get_dev(usbdev);
-	usb_set_intfdata(intf, phy_dev);
-
-	return 0;
-
-err_mac_address:
-	release_usb(udev);
-err_init_usb:
-	kfree(udev);
-err_udev:
-	kfree(phy_dev);
-
-	return ret;
-}
-
-static void gdm_usb_disconnect(struct usb_interface *intf)
-{
-	struct phy_dev *phy_dev;
-	struct lte_udev *udev;
-	u16 idVendor, idProduct;
-	struct usb_device *usbdev;
-
-	usbdev = interface_to_usbdev(intf);
-
-	idVendor = __le16_to_cpu(usbdev->descriptor.idVendor);
-	idProduct = __le16_to_cpu(usbdev->descriptor.idProduct);
-
-	phy_dev = usb_get_intfdata(intf);
-
-	udev = phy_dev->priv_dev;
-	unregister_lte_device(phy_dev);
-
-	release_usb(udev);
-
-	kfree(udev);
-	udev = NULL;
-
-	kfree(phy_dev);
-	phy_dev = NULL;
-
-	usb_put_dev(usbdev);
-}
-
-static int gdm_usb_suspend(struct usb_interface *intf, pm_message_t pm_msg)
-{
-	struct phy_dev *phy_dev;
-	struct lte_udev *udev;
-	struct rx_cxt *rx;
-	struct usb_rx *r;
-	struct usb_rx *r_next;
-	unsigned long flags;
-
-	phy_dev = usb_get_intfdata(intf);
-	udev = phy_dev->priv_dev;
-	rx = &udev->rx;
-	if (udev->usb_state != PM_NORMAL) {
-		dev_err(intf->usb_dev, "usb suspend - invalid state\n");
-		return -1;
-	}
-
-	udev->usb_state = PM_SUSPEND;
-
-	spin_lock_irqsave(&rx->submit_lock, flags);
-	list_for_each_entry_safe(r, r_next, &rx->rx_submit_list,
-				 rx_submit_list) {
-		spin_unlock_irqrestore(&rx->submit_lock, flags);
-		usb_kill_urb(r->urb);
-		spin_lock_irqsave(&rx->submit_lock, flags);
-	}
-	spin_unlock_irqrestore(&rx->submit_lock, flags);
-
-	return 0;
-}
-
-static int gdm_usb_resume(struct usb_interface *intf)
-{
-	struct phy_dev *phy_dev;
-	struct lte_udev *udev;
-	struct tx_cxt *tx;
-	struct rx_cxt *rx;
-	unsigned long flags;
-	int issue_count;
-	int i;
-
-	phy_dev = usb_get_intfdata(intf);
-	udev = phy_dev->priv_dev;
-	rx = &udev->rx;
-
-	if (udev->usb_state != PM_SUSPEND) {
-		dev_err(intf->usb_dev, "usb resume - invalid state\n");
-		return -1;
-	}
-	udev->usb_state = PM_NORMAL;
-
-	spin_lock_irqsave(&rx->rx_lock, flags);
-	issue_count = rx->avail_count - MAX_RX_SUBMIT_COUNT;
-	spin_unlock_irqrestore(&rx->rx_lock, flags);
-
-	if (issue_count >= 0) {
-		for (i = 0; i < issue_count; i++)
-			gdm_usb_recv(phy_dev->priv_dev,
-				     udev->rx_cb,
-				     phy_dev,
-				     USB_COMPLETE);
-	}
-
-	tx = &udev->tx;
-	spin_lock_irqsave(&tx->lock, flags);
-	queue_work(usb_tx_wq, &udev->work_tx.work);
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	return 0;
-}
-
-static struct usb_driver gdm_usb_lte_driver = {
-	.name = "gdm_lte",
-	.probe = gdm_usb_probe,
-	.disconnect = gdm_usb_disconnect,
-	.id_table = id_table,
-	.supports_autosuspend = 1,
-	.suspend = gdm_usb_suspend,
-	.resume = gdm_usb_resume,
-	.reset_resume = gdm_usb_resume,
-};
-
-static int __init gdm_usb_lte_init(void)
-{
-	if (gdm_lte_event_init() < 0) {
-		pr_err("error creating event\n");
-		return -1;
-	}
-
-	usb_tx_wq = create_workqueue("usb_tx_wq");
-	if (usb_tx_wq == NULL)
-		return -1;
-
-	usb_rx_wq = create_workqueue("usb_rx_wq");
-	if (usb_rx_wq == NULL)
-		return -1;
-
-	return usb_register(&gdm_usb_lte_driver);
-}
-
-static void __exit gdm_usb_lte_exit(void)
-{
-	gdm_lte_event_exit();
-
-	usb_deregister(&gdm_usb_lte_driver);
-
-	if (usb_tx_wq) {
-		flush_workqueue(usb_tx_wq);
-		destroy_workqueue(usb_tx_wq);
-	}
-
-	if (usb_rx_wq) {
-		flush_workqueue(usb_rx_wq);
-		destroy_workqueue(usb_rx_wq);
-	}
-}
-
-module_init(gdm_usb_lte_init);
-module_exit(gdm_usb_lte_exit);
-
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_DESCRIPTION("GCT LTE USB Device Driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/gdm724x/gdm_usb.h b/drivers/staging/gdm724x/gdm_usb.h
deleted file mode 100644
index e6486e71a428..000000000000
--- a/drivers/staging/gdm724x/gdm_usb.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _GDM_USB_H_
-#define _GDM_USB_H_
-
-#include <linux/types.h>
-#include <linux/usb.h>
-#include <linux/list.h>
-#include <linux/time.h>
-
-#include "gdm_endian.h"
-#include "hci_packet.h"
-
-#define PM_NORMAL 0
-#define PM_SUSPEND 1
-#define AUTO_SUSPEND_TIMER 5000 /* ms */
-
-#define RX_BUF_SIZE		(1024*32)
-#define TX_BUF_SIZE		(1024*32)
-#define SDU_BUF_SIZE	2048
-#define MAX_SDU_SIZE	(1024*30)
-#define MAX_PACKET_IN_MULTI_SDU	256
-
-#define VID_GCT			0x1076
-#define PID_GDM7240		0x8000
-#define PID_GDM7243		0x9000
-
-#define NETWORK_INTERFACE 1
-#define USB_SC_SCSI 0x06
-#define USB_PR_BULK 0x50
-
-#define MAX_NUM_SDU_BUF	64
-
-struct usb_tx {
-	struct list_head list;
-	struct urb *urb;
-	u8 *buf;
-	u32 len;
-	void (*callback)(void *cb_data);
-	void *cb_data;
-	struct tx_cxt *tx;
-	u8 is_sdu;
-};
-
-struct usb_tx_sdu {
-	struct list_head list;
-	u8 *buf;
-	u32 len;
-	void (*callback)(void *cb_data);
-	void *cb_data;
-};
-
-struct usb_rx {
-	struct list_head to_host_list;
-	struct list_head free_list;
-	struct list_head rx_submit_list;
-	struct rx_cxt	*rx;
-	struct urb *urb;
-	u8 *buf;
-	int (*callback)(void *cb_data, void *data, int len, int context);
-	void *cb_data;
-	void *index;
-};
-
-struct tx_cxt {
-	struct list_head sdu_list;
-	struct list_head hci_list;
-	struct list_head free_list;
-	u32 avail_count;
-	spinlock_t lock;
-};
-
-struct rx_cxt {
-	struct list_head to_host_list;
-	struct list_head rx_submit_list;
-	struct list_head free_list;
-	u32	avail_count;
-	spinlock_t to_host_lock;
-	spinlock_t rx_lock;
-	spinlock_t submit_lock;
-};
-
-struct lte_udev {
-	struct usb_device *usbdev;
-	struct gdm_endian gdm_ed;
-	struct tx_cxt tx;
-	struct rx_cxt rx;
-	struct delayed_work work_tx;
-	struct delayed_work work_rx;
-	u8 send_complete;
-	u8 tx_stop;
-	struct usb_interface *intf;
-	int (*rx_cb)(void *cb_data, void *data, int len, int context);
-	int usb_state;
-	u8 request_mac_addr;
-};
-
-#endif /* _GDM_USB_H_ */
diff --git a/drivers/staging/gdm724x/hci.h b/drivers/staging/gdm724x/hci.h
deleted file mode 100644
index 9a591b0db516..000000000000
--- a/drivers/staging/gdm724x/hci.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _HCI_H_
-#define _HCI_H_
-
-#define LTE_GET_INFORMATION		0x3002
-#define LTE_GET_INFORMATION_RESULT	0xB003
-	#define MAC_ADDRESS		0xA2
-
-#define LTE_LINK_ON_OFF_INDICATION	0xB133
-#define LTE_PDN_TABLE_IND		0xB143
-
-#define LTE_TX_SDU			0x3200
-#define LTE_RX_SDU			0xB201
-#define LTE_TX_MULTI_SDU		0x3202
-#define LTE_RX_MULTI_SDU		0xB203
-
-#define LTE_DL_SDU_FLOW_CONTROL		0x3305
-#define LTE_UL_SDU_FLOW_CONTROL		0xB306
-
-#define LTE_AT_CMD_TO_DEVICE		0x3307
-#define LTE_AT_CMD_FROM_DEVICE		0xB308
-
-#define LTE_SDIO_DM_SEND_PKT		0x3312
-#define LTE_SDIO_DM_RECV_PKT		0xB313
-
-#define LTE_NV_RESTORE_REQUEST		0xB30C
-#define LTE_NV_RESTORE_RESPONSE		0x330D
-#define LTE_NV_SAVE_REQUEST		0xB30E
-	#define NV_TYPE_LTE_INFO	0x00
-	#define NV_TYPE_BOARD_CONFIG	0x01
-	#define NV_TYPE_RF_CAL		0x02
-	#define NV_TYPE_TEMP		0x03
-	#define NV_TYPE_NET_INFO	0x04
-	#define NV_TYPE_SAFETY_INFO	0x05
-	#define NV_TYPE_CDMA_CAL	0x06
-	#define NV_TYPE_VENDOR		0x07
-	#define NV_TYPE_ALL		0xff
-#define LTE_NV_SAVE_RESPONSE		0x330F
-
-#define LTE_AT_CMD_TO_DEVICE_EXT	0x3323
-#define LTE_AT_CMD_FROM_DEVICE_EXT	0xB324
-
-#endif /* _HCI_H_ */
diff --git a/drivers/staging/gdm724x/hci_packet.h b/drivers/staging/gdm724x/hci_packet.h
deleted file mode 100644
index 7fba8a687faf..000000000000
--- a/drivers/staging/gdm724x/hci_packet.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _HCI_PACKET_H_
-#define _HCI_PACKET_H_
-
-#define HCI_HEADER_SIZE 4
-
-/*
- * The NIC type definition:
- * For backward compatibility, lower 16 bits used as they were.
- * Lower 16 bit: NIC_TYPE values
- * Uppoer 16 bit: NIC_TYPE Flags
- */
-#define NIC_TYPE_NIC0		0x00000010
-#define NIC_TYPE_NIC1		0x00000011
-#define NIC_TYPE_NIC2		0x00000012
-#define NIC_TYPE_NIC3		0x00000013
-#define NIC_TYPE_ARP		0x00000100
-#define NIC_TYPE_ICMPV6		0x00000200
-#define NIC_TYPE_MASK		0x0000FFFF
-#define NIC_TYPE_F_IPV4		0x00010000
-#define NIC_TYPE_F_IPV6		0x00020000
-#define NIC_TYPE_F_DHCP		0x00040000
-#define NIC_TYPE_F_NDP		0x00080000
-#define NIC_TYPE_F_VLAN		0x00100000
-
-struct hci_packet {
-	u16 cmd_evt;
-	u16 len;
-	u8 data[0];
-} __packed;
-
-struct tlv {
-	u8 type;
-	u8 len;
-	u8 *data[1];
-} __packed;
-
-struct sdu_header {
-	u16 cmd_evt;
-	u16 len;
-	u32 dftEpsId;
-	u32 bearer_ID;
-	u32 nic_type;
-} __packed;
-
-struct sdu {
-	u16 cmd_evt;
-	u16 len;
-	u32 dftEpsId;
-	u32 bearer_ID;
-	u32 nic_type;
-	u8 data[0];
-} __packed;
-
-struct multi_sdu {
-	u16 cmd_evt;
-	u16 len;
-	u16 num_packet;
-	u16 reserved;
-	u8 data[0];
-} __packed;
-
-struct hci_pdn_table_ind {
-	u16 cmd_evt;
-	u16 len;
-	u8 activate;
-	u32 dft_eps_id;
-	u32 nic_type;
-	u8 pdn_type;
-	u8 ipv4_addr[4];
-	u8 ipv6_intf_id[8];
-} __packed;
-
-struct hci_connect_ind {
-	u16 cmd_evt;
-	u16 len;
-	u32 connect;
-} __packed;
-
-
-#endif /* _HCI_PACKET_H_ */
diff --git a/drivers/staging/gdm724x/netlink_k.c b/drivers/staging/gdm724x/netlink_k.c
deleted file mode 100644
index 59a18304ef4a..000000000000
--- a/drivers/staging/gdm724x/netlink_k.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/export.h>
-#include <linux/etherdevice.h>
-#include <linux/netlink.h>
-#include <asm/byteorder.h>
-#include <net/sock.h>
-
-#include "netlink_k.h"
-
-#if defined(DEFINE_MUTEX)
-static DEFINE_MUTEX(netlink_mutex);
-#else
-static struct semaphore netlink_mutex;
-#define mutex_lock(x)		down(x)
-#define mutex_unlock(x)		up(x)
-#endif
-
-#define ND_MAX_GROUP		30
-#define ND_IFINDEX_LEN		sizeof(int)
-#define ND_NLMSG_SPACE(len)	(NLMSG_SPACE(len) + ND_IFINDEX_LEN)
-#define ND_NLMSG_DATA(nlh)	((void *)((char *)NLMSG_DATA(nlh) + \
-						  ND_IFINDEX_LEN))
-#define ND_NLMSG_S_LEN(len)	(len+ND_IFINDEX_LEN)
-#define ND_NLMSG_R_LEN(nlh)	(nlh->nlmsg_len-ND_IFINDEX_LEN)
-#define ND_NLMSG_IFIDX(nlh)	NLMSG_DATA(nlh)
-#define ND_MAX_MSG_LEN		(1024 * 32)
-
-static void (*rcv_cb)(struct net_device *dev, u16 type, void *msg, int len);
-
-static void netlink_rcv_cb(struct sk_buff *skb)
-{
-	struct nlmsghdr	*nlh;
-	struct net_device *dev;
-	u32 mlen;
-	void *msg;
-	int ifindex;
-
-	if (!rcv_cb) {
-		pr_err("nl cb - unregistered\n");
-		return;
-	}
-
-	if (skb->len < NLMSG_HDRLEN) {
-		pr_err("nl cb - invalid skb length\n");
-		return;
-	}
-
-	nlh = (struct nlmsghdr *)skb->data;
-
-	if (skb->len < nlh->nlmsg_len || nlh->nlmsg_len > ND_MAX_MSG_LEN) {
-		pr_err("nl cb - invalid length (%d,%d)\n",
-		       skb->len, nlh->nlmsg_len);
-		return;
-	}
-
-	memcpy(&ifindex, ND_NLMSG_IFIDX(nlh), ND_IFINDEX_LEN);
-	msg = ND_NLMSG_DATA(nlh);
-	mlen = ND_NLMSG_R_LEN(nlh);
-
-	dev = dev_get_by_index(&init_net, ifindex);
-	if (dev) {
-		rcv_cb(dev, nlh->nlmsg_type, msg, mlen);
-		dev_put(dev);
-	} else {
-		pr_err("nl cb - dev (%d) not found\n", ifindex);
-	}
-}
-
-static void netlink_rcv(struct sk_buff *skb)
-{
-	mutex_lock(&netlink_mutex);
-	netlink_rcv_cb(skb);
-	mutex_unlock(&netlink_mutex);
-}
-
-struct sock *netlink_init(int unit,
-	void (*cb)(struct net_device *dev, u16 type, void *msg, int len))
-{
-	struct sock *sock;
-	struct netlink_kernel_cfg cfg = {
-		.input  = netlink_rcv,
-	};
-
-#if !defined(DEFINE_MUTEX)
-	init_MUTEX(&netlink_mutex);
-#endif
-
-	sock = netlink_kernel_create(&init_net, unit, &cfg);
-
-	if (sock)
-		rcv_cb = cb;
-
-	return sock;
-}
-
-void netlink_exit(struct sock *sock)
-{
-	sock_release(sock->sk_socket);
-}
-
-int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)
-{
-	static u32 seq;
-	struct sk_buff *skb = NULL;
-	struct nlmsghdr *nlh;
-	int ret = 0;
-
-	if (group > ND_MAX_GROUP)
-		return -EINVAL;
-
-	if (!netlink_has_listeners(sock, group+1))
-		return -ESRCH;
-
-	skb = alloc_skb(NLMSG_SPACE(len), GFP_ATOMIC);
-	if (!skb)
-		return -ENOMEM;
-
-	seq++;
-
-	nlh = nlmsg_put(skb, 0, seq, type, len, 0);
-	memcpy(NLMSG_DATA(nlh), msg, len);
-	NETLINK_CB(skb).portid = 0;
-	NETLINK_CB(skb).dst_group = 0;
-
-	ret = netlink_broadcast(sock, skb, 0, group+1, GFP_ATOMIC);
-	if (!ret)
-		return len;
-
-	if (ret != -ESRCH)
-		pr_err("nl broadcast g=%d, t=%d, l=%d, r=%d\n",
-		       group, type, len, ret);
-	else if (netlink_has_listeners(sock, group+1))
-		return -EAGAIN;
-
-	return ret;
-}
diff --git a/drivers/staging/gdm724x/netlink_k.h b/drivers/staging/gdm724x/netlink_k.h
deleted file mode 100644
index 589486d76714..000000000000
--- a/drivers/staging/gdm724x/netlink_k.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _NETLINK_K_H
-#define _NETLINK_K_H
-
-#include <linux/netdevice.h>
-#include <net/sock.h>
-
-struct sock *netlink_init(int unit,
-	void (*cb)(struct net_device *dev, u16 type, void *msg, int len));
-void netlink_exit(struct sock *sock);
-int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len);
-
-#endif /* _NETLINK_K_H_ */
diff --git a/drivers/staging/gdm72xx/Kconfig b/drivers/staging/gdm72xx/Kconfig
deleted file mode 100644
index bf11a7fbfc51..000000000000
--- a/drivers/staging/gdm72xx/Kconfig
+++ /dev/null
@@ -1,63 +0,0 @@
-#
-# GCT GDM72xx WiMAX driver configuration
-#
-
-menuconfig WIMAX_GDM72XX
-	tristate "GCT GDM72xx WiMAX support"
-	depends on NET && (USB || MMC)
-	help
-	  Support a WiMAX module based on the GCT GDM72xx WiMAX chip.
-
-if WIMAX_GDM72XX
-
-config WIMAX_GDM72XX_QOS
-	bool "Enable QoS support"
-	default n
-	help
-	  Enable Quality of Service support based on the data protocol of
-	  transmitting packets.
-
-config WIMAX_GDM72XX_K_MODE
-	bool "Enable K mode"
-	default n
-	help
-	  Enable support for proprietary functions for KT (Korea Telecom).
-
-config WIMAX_GDM72XX_WIMAX2
-	bool "Enable WiMAX2 support"
-	default n
-	help
-	  Enable support for transmitting multiple packets (packet
-	  aggregation) from the WiMAX module to the host processor.
-
-choice
-	prompt "Select interface"
-
-config WIMAX_GDM72XX_USB
-	bool "USB interface"
-	depends on (USB = y || USB = WIMAX_GDM72XX)
-	help
-	  Select this option if the WiMAX module interfaces with the host
-	  processor via USB.
-
-config WIMAX_GDM72XX_SDIO
-	bool "SDIO interface"
-	depends on (MMC = y || MMC = WIMAX_GDM72XX)
-	help
-	  Select this option if the WiMAX module interfaces with the host
-	  processor via SDIO.
-
-endchoice
-
-if WIMAX_GDM72XX_USB
-
-config WIMAX_GDM72XX_USB_PM
-	bool "Enable power management support"
-	depends on PM
-	help
-	  Enable USB power management in order to reduce power consumption
-	  while the interface is not in use.
-
-endif # WIMAX_GDM72XX_USB
-
-endif # WIMAX_GDM72XX
diff --git a/drivers/staging/gdm72xx/Makefile b/drivers/staging/gdm72xx/Makefile
deleted file mode 100644
index 35da7b90b19b..000000000000
--- a/drivers/staging/gdm72xx/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-obj-$(CONFIG_WIMAX_GDM72XX) := gdmwm.o
-
-gdmwm-y += gdm_wimax.o netlink_k.o
-gdmwm-$(CONFIG_WIMAX_GDM72XX_QOS) += gdm_qos.o
-gdmwm-$(CONFIG_WIMAX_GDM72XX_SDIO) += gdm_sdio.o sdio_boot.o
-gdmwm-$(CONFIG_WIMAX_GDM72XX_USB) += gdm_usb.o usb_boot.o
diff --git a/drivers/staging/gdm72xx/TODO b/drivers/staging/gdm72xx/TODO
deleted file mode 100644
index 62d0cd6225c8..000000000000
--- a/drivers/staging/gdm72xx/TODO
+++ /dev/null
@@ -1,2 +0,0 @@
-TODO:
-- Clean up coding style to meet kernel standard.
diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
deleted file mode 100644
index 96bf2bf87ff4..000000000000
--- a/drivers/staging/gdm72xx/gdm_qos.c
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/etherdevice.h>
-#include <asm/byteorder.h>
-
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/if_ether.h>
-
-#include "gdm_wimax.h"
-#include "hci.h"
-#include "gdm_qos.h"
-
-#define MAX_FREE_LIST_CNT		32
-static struct {
-	struct list_head head;
-	int cnt;
-	spinlock_t lock;
-} qos_free_list;
-
-static void init_qos_entry_list(void)
-{
-	qos_free_list.cnt = 0;
-	INIT_LIST_HEAD(&qos_free_list.head);
-	spin_lock_init(&qos_free_list.lock);
-}
-
-static void *alloc_qos_entry(void)
-{
-	struct qos_entry_s *entry;
-	unsigned long flags;
-
-	spin_lock_irqsave(&qos_free_list.lock, flags);
-	if (qos_free_list.cnt) {
-		entry = list_entry(qos_free_list.head.prev, struct qos_entry_s,
-				   list);
-		list_del(&entry->list);
-		qos_free_list.cnt--;
-		spin_unlock_irqrestore(&qos_free_list.lock, flags);
-		return entry;
-	}
-	spin_unlock_irqrestore(&qos_free_list.lock, flags);
-
-	return kmalloc(sizeof(*entry), GFP_ATOMIC);
-}
-
-static void free_qos_entry(void *entry)
-{
-	struct qos_entry_s *qentry = (struct qos_entry_s *)entry;
-	unsigned long flags;
-
-	spin_lock_irqsave(&qos_free_list.lock, flags);
-	if (qos_free_list.cnt < MAX_FREE_LIST_CNT) {
-		list_add(&qentry->list, &qos_free_list.head);
-		qos_free_list.cnt++;
-		spin_unlock_irqrestore(&qos_free_list.lock, flags);
-		return;
-	}
-	spin_unlock_irqrestore(&qos_free_list.lock, flags);
-
-	kfree(entry);
-}
-
-static void free_qos_entry_list(struct list_head *free_list)
-{
-	struct qos_entry_s *entry, *n;
-	int total_free = 0;
-
-	list_for_each_entry_safe(entry, n, free_list, list) {
-		list_del(&entry->list);
-		kfree(entry);
-		total_free++;
-	}
-
-	pr_debug("%s: total_free_cnt=%d\n", __func__, total_free);
-}
-
-void gdm_qos_init(void *nic_ptr)
-{
-	struct nic *nic = nic_ptr;
-	struct qos_cb_s *qcb = &nic->qos;
-	int i;
-
-	for (i = 0; i < QOS_MAX; i++) {
-		INIT_LIST_HEAD(&qcb->qos_list[i]);
-		qcb->csr[i].qos_buf_count = 0;
-		qcb->csr[i].enabled = false;
-	}
-
-	qcb->qos_list_cnt = 0;
-	qcb->qos_null_idx = QOS_MAX-1;
-	qcb->qos_limit_size = 255;
-
-	spin_lock_init(&qcb->qos_lock);
-
-	init_qos_entry_list();
-}
-
-void gdm_qos_release_list(void *nic_ptr)
-{
-	struct nic *nic = nic_ptr;
-	struct qos_cb_s *qcb = &nic->qos;
-	unsigned long flags;
-	struct qos_entry_s *entry, *n;
-	struct list_head free_list;
-	int i;
-
-	INIT_LIST_HEAD(&free_list);
-
-	spin_lock_irqsave(&qcb->qos_lock, flags);
-
-	for (i = 0; i < QOS_MAX; i++) {
-		qcb->csr[i].qos_buf_count = 0;
-		qcb->csr[i].enabled = false;
-	}
-
-	qcb->qos_list_cnt = 0;
-	qcb->qos_null_idx = QOS_MAX-1;
-
-	for (i = 0; i < QOS_MAX; i++) {
-		list_for_each_entry_safe(entry, n, &qcb->qos_list[i], list) {
-			list_move_tail(&entry->list, &free_list);
-		}
-	}
-	spin_unlock_irqrestore(&qcb->qos_lock, flags);
-	free_qos_entry_list(&free_list);
-}
-
-static int chk_ipv4_rule(struct gdm_wimax_csr_s *csr, u8 *stream, u8 *port)
-{
-	int i;
-
-	if (csr->classifier_rule_en&IPTYPEOFSERVICE) {
-		if (((stream[1] & csr->ip2s_mask) < csr->ip2s_lo) ||
-		    ((stream[1] & csr->ip2s_mask) > csr->ip2s_hi))
-			return 1;
-	}
-
-	if (csr->classifier_rule_en&PROTOCOL) {
-		if (stream[9] != csr->protocol)
-			return 1;
-	}
-
-	if (csr->classifier_rule_en&IPMASKEDSRCADDRESS) {
-		for (i = 0; i < 4; i++) {
-			if ((stream[12 + i] & csr->ipsrc_addrmask[i]) !=
-			(csr->ipsrc_addr[i] & csr->ipsrc_addrmask[i]))
-				return 1;
-		}
-	}
-
-	if (csr->classifier_rule_en&IPMASKEDDSTADDRESS) {
-		for (i = 0; i < 4; i++) {
-			if ((stream[16 + i] & csr->ipdst_addrmask[i]) !=
-			(csr->ipdst_addr[i] & csr->ipdst_addrmask[i]))
-				return 1;
-		}
-	}
-
-	if (csr->classifier_rule_en&PROTOCOLSRCPORTRANGE) {
-		i = ((port[0]<<8)&0xff00)+port[1];
-		if ((i < csr->srcport_lo) || (i > csr->srcport_hi))
-			return 1;
-	}
-
-	if (csr->classifier_rule_en&PROTOCOLDSTPORTRANGE) {
-		i = ((port[2]<<8)&0xff00)+port[3];
-		if ((i < csr->dstport_lo) || (i > csr->dstport_hi))
-			return 1;
-	}
-
-	return 0;
-}
-
-static int get_qos_index(struct nic *nic, u8 *iph, u8 *tcpudph)
-{
-	int ip_ver, i;
-	struct qos_cb_s *qcb = &nic->qos;
-
-	if (iph == NULL || tcpudph == NULL)
-		return -1;
-
-	ip_ver = (iph[0]>>4)&0xf;
-
-	if (ip_ver != 4)
-		return -1;
-
-	for (i = 0; i < QOS_MAX; i++) {
-		if (!qcb->csr[i].enabled)
-			continue;
-		if (!qcb->csr[i].classifier_rule_en)
-			continue;
-		if (chk_ipv4_rule(&qcb->csr[i], iph, tcpudph) == 0)
-			return i;
-	}
-
-	return -1;
-}
-
-static void extract_qos_list(struct nic *nic, struct list_head *head)
-{
-	struct qos_cb_s *qcb = &nic->qos;
-	struct qos_entry_s *entry;
-	int i;
-
-	INIT_LIST_HEAD(head);
-
-	for (i = 0; i < QOS_MAX; i++) {
-		if (!qcb->csr[i].enabled)
-			continue;
-		if (qcb->csr[i].qos_buf_count >= qcb->qos_limit_size)
-			continue;
-		if (list_empty(&qcb->qos_list[i]))
-			continue;
-
-		entry = list_entry(qcb->qos_list[i].prev, struct qos_entry_s,
-				   list);
-
-		list_move_tail(&entry->list, head);
-		qcb->csr[i].qos_buf_count++;
-
-		if (!list_empty(&qcb->qos_list[i]))
-			netdev_warn(nic->netdev, "Index(%d) is piled!!\n", i);
-	}
-}
-
-static void send_qos_list(struct nic *nic, struct list_head *head)
-{
-	struct qos_entry_s *entry, *n;
-
-	list_for_each_entry_safe(entry, n, head, list) {
-		list_del(&entry->list);
-		gdm_wimax_send_tx(entry->skb, entry->dev);
-		free_qos_entry(entry);
-	}
-}
-
-int gdm_qos_send_hci_pkt(struct sk_buff *skb, struct net_device *dev)
-{
-	struct nic *nic = netdev_priv(dev);
-	int index;
-	struct qos_cb_s *qcb = &nic->qos;
-	unsigned long flags;
-	struct ethhdr *ethh = (struct ethhdr *)(skb->data + HCI_HEADER_SIZE);
-	struct iphdr *iph = (struct iphdr *)((char *)ethh + ETH_HLEN);
-	struct tcphdr *tcph;
-	struct qos_entry_s *entry = NULL;
-	struct list_head send_list;
-	int ret = 0;
-
-	tcph = (struct tcphdr *)iph + iph->ihl*4;
-
-	if (ethh->h_proto == cpu_to_be16(ETH_P_IP)) {
-		if (qcb->qos_list_cnt && !qos_free_list.cnt) {
-			entry = alloc_qos_entry();
-			entry->skb = skb;
-			entry->dev = dev;
-			netdev_dbg(dev, "qcb->qos_list_cnt=%d\n",
-				   qcb->qos_list_cnt);
-		}
-
-		spin_lock_irqsave(&qcb->qos_lock, flags);
-		if (qcb->qos_list_cnt) {
-			index = get_qos_index(nic, (u8 *)iph, (u8 *)tcph);
-			if (index == -1)
-				index = qcb->qos_null_idx;
-
-			if (!entry) {
-				entry = alloc_qos_entry();
-				entry->skb = skb;
-				entry->dev = dev;
-			}
-
-			list_add_tail(&entry->list, &qcb->qos_list[index]);
-			extract_qos_list(nic, &send_list);
-			spin_unlock_irqrestore(&qcb->qos_lock, flags);
-			send_qos_list(nic, &send_list);
-			goto out;
-		}
-		spin_unlock_irqrestore(&qcb->qos_lock, flags);
-		if (entry)
-			free_qos_entry(entry);
-	}
-
-	ret = gdm_wimax_send_tx(skb, dev);
-out:
-	return ret;
-}
-
-static int get_csr(struct qos_cb_s *qcb, u32 sfid, int mode)
-{
-	int i;
-
-	for (i = 0; i < qcb->qos_list_cnt; i++) {
-		if (qcb->csr[i].sfid == sfid)
-			return i;
-	}
-
-	if (mode) {
-		for (i = 0; i < QOS_MAX; i++) {
-			if (!qcb->csr[i].enabled) {
-				qcb->csr[i].enabled = true;
-				qcb->qos_list_cnt++;
-				return i;
-			}
-		}
-	}
-	return -1;
-}
-
-#define QOS_CHANGE_DEL	0xFC
-#define QOS_ADD		0xFD
-#define QOS_REPORT	0xFE
-
-void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
-{
-	struct nic *nic = nic_ptr;
-	int i, index, pos;
-	u32 sfid;
-	u8 sub_cmd_evt;
-	struct qos_cb_s *qcb = &nic->qos;
-	struct qos_entry_s *entry, *n;
-	struct list_head send_list;
-	struct list_head free_list;
-	unsigned long flags;
-
-	sub_cmd_evt = (u8)buf[4];
-
-	if (sub_cmd_evt == QOS_REPORT) {
-		spin_lock_irqsave(&qcb->qos_lock, flags);
-		for (i = 0; i < qcb->qos_list_cnt; i++) {
-			sfid = ((buf[(i*5)+6]<<24)&0xff000000);
-			sfid += ((buf[(i*5)+7]<<16)&0xff0000);
-			sfid += ((buf[(i*5)+8]<<8)&0xff00);
-			sfid += (buf[(i*5)+9]);
-			index = get_csr(qcb, sfid, 0);
-			if (index == -1) {
-				spin_unlock_irqrestore(&qcb->qos_lock, flags);
-				netdev_err(nic->netdev, "QoS ERROR: No SF\n");
-				return;
-			}
-			qcb->csr[index].qos_buf_count = buf[(i*5)+10];
-		}
-
-		extract_qos_list(nic, &send_list);
-		spin_unlock_irqrestore(&qcb->qos_lock, flags);
-		send_qos_list(nic, &send_list);
-		return;
-	}
-
-	/* sub_cmd_evt == QOS_ADD || sub_cmd_evt == QOS_CHANG_DEL */
-	pos = 6;
-	sfid = ((buf[pos++]<<24)&0xff000000);
-	sfid += ((buf[pos++]<<16)&0xff0000);
-	sfid += ((buf[pos++]<<8)&0xff00);
-	sfid += (buf[pos++]);
-
-	index = get_csr(qcb, sfid, 1);
-	if (index == -1) {
-		netdev_err(nic->netdev,
-			   "QoS ERROR: csr Update Error / Wrong index (%d)\n",
-			   index);
-		return;
-	}
-
-	if (sub_cmd_evt == QOS_ADD) {
-		netdev_dbg(nic->netdev, "QOS_ADD SFID = 0x%x, index=%d\n",
-			   sfid, index);
-
-		spin_lock_irqsave(&qcb->qos_lock, flags);
-		qcb->csr[index].sfid = sfid;
-		qcb->csr[index].classifier_rule_en = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].classifier_rule_en += buf[pos++];
-		if (qcb->csr[index].classifier_rule_en == 0)
-			qcb->qos_null_idx = index;
-		qcb->csr[index].ip2s_mask = buf[pos++];
-		qcb->csr[index].ip2s_lo = buf[pos++];
-		qcb->csr[index].ip2s_hi = buf[pos++];
-		qcb->csr[index].protocol = buf[pos++];
-		qcb->csr[index].ipsrc_addrmask[0] = buf[pos++];
-		qcb->csr[index].ipsrc_addrmask[1] = buf[pos++];
-		qcb->csr[index].ipsrc_addrmask[2] = buf[pos++];
-		qcb->csr[index].ipsrc_addrmask[3] = buf[pos++];
-		qcb->csr[index].ipsrc_addr[0] = buf[pos++];
-		qcb->csr[index].ipsrc_addr[1] = buf[pos++];
-		qcb->csr[index].ipsrc_addr[2] = buf[pos++];
-		qcb->csr[index].ipsrc_addr[3] = buf[pos++];
-		qcb->csr[index].ipdst_addrmask[0] = buf[pos++];
-		qcb->csr[index].ipdst_addrmask[1] = buf[pos++];
-		qcb->csr[index].ipdst_addrmask[2] = buf[pos++];
-		qcb->csr[index].ipdst_addrmask[3] = buf[pos++];
-		qcb->csr[index].ipdst_addr[0] = buf[pos++];
-		qcb->csr[index].ipdst_addr[1] = buf[pos++];
-		qcb->csr[index].ipdst_addr[2] = buf[pos++];
-		qcb->csr[index].ipdst_addr[3] = buf[pos++];
-		qcb->csr[index].srcport_lo = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].srcport_lo += buf[pos++];
-		qcb->csr[index].srcport_hi = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].srcport_hi += buf[pos++];
-		qcb->csr[index].dstport_lo = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].dstport_lo += buf[pos++];
-		qcb->csr[index].dstport_hi = ((buf[pos++]<<8)&0xff00);
-		qcb->csr[index].dstport_hi += buf[pos++];
-
-		qcb->qos_limit_size = 254/qcb->qos_list_cnt;
-		spin_unlock_irqrestore(&qcb->qos_lock, flags);
-	} else if (sub_cmd_evt == QOS_CHANGE_DEL) {
-		netdev_dbg(nic->netdev, "QOS_CHANGE_DEL SFID = 0x%x, index=%d\n",
-			   sfid, index);
-
-		INIT_LIST_HEAD(&free_list);
-
-		spin_lock_irqsave(&qcb->qos_lock, flags);
-		qcb->csr[index].enabled = false;
-		qcb->qos_list_cnt--;
-		qcb->qos_limit_size = 254/qcb->qos_list_cnt;
-
-		list_for_each_entry_safe(entry, n, &qcb->qos_list[index],
-					 list) {
-			list_move_tail(&entry->list, &free_list);
-		}
-		spin_unlock_irqrestore(&qcb->qos_lock, flags);
-		free_qos_entry_list(&free_list);
-	}
-}
diff --git a/drivers/staging/gdm72xx/gdm_qos.h b/drivers/staging/gdm72xx/gdm_qos.h
deleted file mode 100644
index bbc8aab338b5..000000000000
--- a/drivers/staging/gdm72xx/gdm_qos.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_GDM_QOS_H__
-#define __GDM72XX_GDM_QOS_H__
-
-#include <linux/types.h>
-#include <linux/usb.h>
-#include <linux/list.h>
-
-#define QOS_MAX				16
-#define IPTYPEOFSERVICE			0x8000
-#define	PROTOCOL			0x4000
-#define	IPMASKEDSRCADDRESS		0x2000
-#define	IPMASKEDDSTADDRESS		0x1000
-#define	PROTOCOLSRCPORTRANGE		0x800
-#define	PROTOCOLDSTPORTRANGE		0x400
-#define	DSTMACADDR			0x200
-#define	SRCMACADDR			0x100
-#define	ETHERTYPE			0x80
-#define	IEEE802_1DUSERPRIORITY		0x40
-#define	IEEE802_1QVLANID		0x10
-
-struct gdm_wimax_csr_s {
-	bool		enabled;
-	u32		sfid;
-	u8		qos_buf_count;
-	u16		classifier_rule_en;
-	u8		ip2s_lo;
-	u8		ip2s_hi;
-	u8		ip2s_mask;
-	u8		protocol;
-	u8		ipsrc_addr[16];
-	u8		ipsrc_addrmask[16];
-	u8		ipdst_addr[16];
-	u8		ipdst_addrmask[16];
-	u16		srcport_lo;
-	u16		srcport_hi;
-	u16		dstport_lo;
-	u16		dstport_hi;
-};
-
-struct qos_entry_s {
-	struct list_head	list;
-	struct sk_buff		*skb;
-	struct net_device	*dev;
-
-};
-
-struct qos_cb_s {
-	struct list_head	qos_list[QOS_MAX];
-	int			qos_list_cnt;
-	int			qos_null_idx;
-	struct gdm_wimax_csr_s	csr[QOS_MAX];
-	spinlock_t		qos_lock;
-	int			qos_limit_size;
-};
-
-void gdm_qos_init(void *nic_ptr);
-void gdm_qos_release_list(void *nic_ptr);
-int gdm_qos_send_hci_pkt(struct sk_buff *skb, struct net_device *dev);
-void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size);
-
-#endif /* __GDM72XX_GDM_QOS_H__ */
diff --git a/drivers/staging/gdm72xx/gdm_sdio.c b/drivers/staging/gdm72xx/gdm_sdio.c
deleted file mode 100644
index a5fd0794842e..000000000000
--- a/drivers/staging/gdm72xx/gdm_sdio.c
+++ /dev/null
@@ -1,701 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <linux/mmc/core.h>
-#include <linux/mmc/card.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/sdio_ids.h>
-
-#include "gdm_sdio.h"
-#include "gdm_wimax.h"
-#include "sdio_boot.h"
-#include "hci.h"
-
-#define TYPE_A_HEADER_SIZE	4
-#define TYPE_A_LOOKAHEAD_SIZE	16
-
-#define MAX_NR_RX_BUF	4
-
-#define SDU_TX_BUF_SIZE	2048
-#define TX_BUF_SIZE	2048
-#define TX_CHUNK_SIZE	(2048 - TYPE_A_HEADER_SIZE)
-#define RX_BUF_SIZE	(25*1024)
-
-#define TX_HZ		2000
-#define TX_INTERVAL	(1000000/TX_HZ)
-
-static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
-{
-	struct sdio_tx *t = kzalloc(sizeof(*t), GFP_ATOMIC);
-
-	if (!t)
-		return NULL;
-
-	t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
-	if (!t->buf) {
-		kfree(t);
-		return NULL;
-	}
-
-	t->tx_cxt = tx;
-
-	return t;
-}
-
-static void free_tx_struct(struct sdio_tx *t)
-{
-	if (t) {
-		kfree(t->buf);
-		kfree(t);
-	}
-}
-
-static struct sdio_rx *alloc_rx_struct(struct rx_cxt *rx)
-{
-	struct sdio_rx *r = kzalloc(sizeof(*r), GFP_ATOMIC);
-
-	if (r)
-		r->rx_cxt = rx;
-
-	return r;
-}
-
-static void free_rx_struct(struct sdio_rx *r)
-{
-	kfree(r);
-}
-
-/* Before this function is called, spin lock should be locked. */
-static struct sdio_tx *get_tx_struct(struct tx_cxt *tx, int *no_spc)
-{
-	struct sdio_tx *t;
-
-	if (list_empty(&tx->free_list))
-		return NULL;
-
-	t = list_entry(tx->free_list.prev, struct sdio_tx, list);
-	list_del(&t->list);
-
-	*no_spc = list_empty(&tx->free_list) ? 1 : 0;
-
-	return t;
-}
-
-/* Before this function is called, spin lock should be locked. */
-static void put_tx_struct(struct tx_cxt *tx, struct sdio_tx *t)
-{
-	list_add_tail(&t->list, &tx->free_list);
-}
-
-/* Before this function is called, spin lock should be locked. */
-static struct sdio_rx *get_rx_struct(struct rx_cxt *rx)
-{
-	struct sdio_rx *r;
-
-	if (list_empty(&rx->free_list))
-		return NULL;
-
-	r = list_entry(rx->free_list.prev, struct sdio_rx, list);
-	list_del(&r->list);
-
-	return r;
-}
-
-/* Before this function is called, spin lock should be locked. */
-static void put_rx_struct(struct rx_cxt *rx, struct sdio_rx *r)
-{
-	list_add_tail(&r->list, &rx->free_list);
-}
-
-static void release_sdio(struct sdiowm_dev *sdev)
-{
-	struct tx_cxt	*tx = &sdev->tx;
-	struct rx_cxt	*rx = &sdev->rx;
-	struct sdio_tx	*t, *t_next;
-	struct sdio_rx	*r, *r_next;
-
-	kfree(tx->sdu_buf);
-
-	list_for_each_entry_safe(t, t_next, &tx->free_list, list) {
-		list_del(&t->list);
-		free_tx_struct(t);
-	}
-
-	list_for_each_entry_safe(t, t_next, &tx->sdu_list, list) {
-		list_del(&t->list);
-		free_tx_struct(t);
-	}
-
-	list_for_each_entry_safe(t, t_next, &tx->hci_list, list) {
-		list_del(&t->list);
-		free_tx_struct(t);
-	}
-
-	kfree(rx->rx_buf);
-
-	list_for_each_entry_safe(r, r_next, &rx->free_list, list) {
-		list_del(&r->list);
-		free_rx_struct(r);
-	}
-
-	list_for_each_entry_safe(r, r_next, &rx->req_list, list) {
-		list_del(&r->list);
-		free_rx_struct(r);
-	}
-}
-
-static int init_sdio(struct sdiowm_dev *sdev)
-{
-	int ret = 0, i;
-	struct tx_cxt *tx = &sdev->tx;
-	struct rx_cxt *rx = &sdev->rx;
-	struct sdio_tx *t;
-	struct sdio_rx *r;
-
-	INIT_LIST_HEAD(&tx->free_list);
-	INIT_LIST_HEAD(&tx->sdu_list);
-	INIT_LIST_HEAD(&tx->hci_list);
-
-	spin_lock_init(&tx->lock);
-
-	tx->sdu_buf = kmalloc(SDU_TX_BUF_SIZE, GFP_KERNEL);
-	if (tx->sdu_buf == NULL)
-		goto fail;
-
-	for (i = 0; i < MAX_NR_SDU_BUF; i++) {
-		t = alloc_tx_struct(tx);
-		if (t == NULL) {
-			ret = -ENOMEM;
-			goto fail;
-		}
-		list_add(&t->list, &tx->free_list);
-	}
-
-	INIT_LIST_HEAD(&rx->free_list);
-	INIT_LIST_HEAD(&rx->req_list);
-
-	spin_lock_init(&rx->lock);
-
-	for (i = 0; i < MAX_NR_RX_BUF; i++) {
-		r = alloc_rx_struct(rx);
-		if (r == NULL) {
-			ret = -ENOMEM;
-			goto fail;
-		}
-		list_add(&r->list, &rx->free_list);
-	}
-
-	rx->rx_buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL);
-	if (rx->rx_buf == NULL)
-		goto fail;
-
-	return 0;
-
-fail:
-	release_sdio(sdev);
-	return ret;
-}
-
-static void send_sdio_pkt(struct sdio_func *func, u8 *data, int len)
-{
-	int n, blocks, ret, remain;
-
-	sdio_claim_host(func);
-
-	blocks = len / func->cur_blksize;
-	n = blocks * func->cur_blksize;
-	if (blocks) {
-		ret = sdio_memcpy_toio(func, 0, data, n);
-		if (ret < 0) {
-			if (ret != -ENOMEDIUM)
-				dev_err(&func->dev,
-					"gdmwms:  error: ret = %d\n", ret);
-			goto end_io;
-		}
-	}
-
-	remain = len - n;
-	remain = (remain + 3) & ~3;
-
-	if (remain) {
-		ret = sdio_memcpy_toio(func, 0, data + n, remain);
-		if (ret < 0) {
-			if (ret != -ENOMEDIUM)
-				dev_err(&func->dev,
-					"gdmwms:  error: ret = %d\n", ret);
-			goto end_io;
-		}
-	}
-
-end_io:
-	sdio_release_host(func);
-}
-
-static void send_sdu(struct sdio_func *func, struct tx_cxt *tx)
-{
-	struct list_head *l, *next;
-	struct hci_s *hci;
-	struct sdio_tx *t;
-	int pos, len, i, estlen, aggr_num = 0, aggr_len;
-	u8 *buf;
-	unsigned long flags;
-
-	spin_lock_irqsave(&tx->lock, flags);
-
-	pos = TYPE_A_HEADER_SIZE + HCI_HEADER_SIZE;
-	list_for_each_entry(t, &tx->sdu_list, list) {
-		estlen = ((t->len + 3) & ~3) + 4;
-		if ((pos + estlen) > SDU_TX_BUF_SIZE)
-			break;
-
-		aggr_num++;
-		memcpy(tx->sdu_buf + pos, t->buf, t->len);
-		memset(tx->sdu_buf + pos + t->len, 0, estlen - t->len);
-		pos += estlen;
-	}
-	aggr_len = pos;
-
-	hci = (struct hci_s *)(tx->sdu_buf + TYPE_A_HEADER_SIZE);
-	hci->cmd_evt = cpu_to_be16(WIMAX_TX_SDU_AGGR);
-	hci->length = cpu_to_be16(aggr_len - TYPE_A_HEADER_SIZE -
-				  HCI_HEADER_SIZE);
-
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	dev_dbg(&func->dev, "sdio_send: %*ph\n", aggr_len - TYPE_A_HEADER_SIZE,
-		tx->sdu_buf + TYPE_A_HEADER_SIZE);
-
-	for (pos = TYPE_A_HEADER_SIZE; pos < aggr_len; pos += TX_CHUNK_SIZE) {
-		len = aggr_len - pos;
-		len = len > TX_CHUNK_SIZE ? TX_CHUNK_SIZE : len;
-		buf = tx->sdu_buf + pos - TYPE_A_HEADER_SIZE;
-
-		buf[0] = len & 0xff;
-		buf[1] = (len >> 8) & 0xff;
-		buf[2] = (len >> 16) & 0xff;
-		buf[3] = (pos + len) >= aggr_len ? 0 : 1;
-		send_sdio_pkt(func, buf, len + TYPE_A_HEADER_SIZE);
-	}
-
-	spin_lock_irqsave(&tx->lock, flags);
-
-	for (l = tx->sdu_list.next, i = 0; i < aggr_num; i++, l = next) {
-		next = l->next;
-		t = list_entry(l, struct sdio_tx, list);
-		if (t->callback)
-			t->callback(t->cb_data);
-
-		list_del(l);
-		put_tx_struct(t->tx_cxt, t);
-	}
-
-	do_gettimeofday(&tx->sdu_stamp);
-	spin_unlock_irqrestore(&tx->lock, flags);
-}
-
-static void send_hci(struct sdio_func *func, struct tx_cxt *tx,
-		     struct sdio_tx *t)
-{
-	unsigned long flags;
-
-	dev_dbg(&func->dev, "sdio_send: %*ph\n", t->len - TYPE_A_HEADER_SIZE,
-		t->buf + TYPE_A_HEADER_SIZE);
-
-	send_sdio_pkt(func, t->buf, t->len);
-
-	spin_lock_irqsave(&tx->lock, flags);
-	if (t->callback)
-		t->callback(t->cb_data);
-	free_tx_struct(t);
-	spin_unlock_irqrestore(&tx->lock, flags);
-}
-
-static void do_tx(struct work_struct *work)
-{
-	struct sdiowm_dev *sdev = container_of(work, struct sdiowm_dev, ws);
-	struct sdio_func *func = sdev->func;
-	struct tx_cxt *tx = &sdev->tx;
-	struct sdio_tx *t = NULL;
-	struct timeval now, *before;
-	int is_sdu = 0;
-	long diff;
-	unsigned long flags;
-
-	spin_lock_irqsave(&tx->lock, flags);
-	if (!tx->can_send) {
-		spin_unlock_irqrestore(&tx->lock, flags);
-		return;
-	}
-
-	if (!list_empty(&tx->hci_list)) {
-		t = list_entry(tx->hci_list.next, struct sdio_tx, list);
-		list_del(&t->list);
-		is_sdu = 0;
-	} else if (!tx->stop_sdu_tx && !list_empty(&tx->sdu_list)) {
-		do_gettimeofday(&now);
-		before = &tx->sdu_stamp;
-
-		diff = (now.tv_sec - before->tv_sec) * 1000000 +
-			(now.tv_usec - before->tv_usec);
-		if (diff >= 0 && diff < TX_INTERVAL) {
-			schedule_work(&sdev->ws);
-			spin_unlock_irqrestore(&tx->lock, flags);
-			return;
-		}
-		is_sdu = 1;
-	}
-
-	if (!is_sdu && t == NULL) {
-		spin_unlock_irqrestore(&tx->lock, flags);
-		return;
-	}
-
-	tx->can_send = 0;
-
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	if (is_sdu)
-		send_sdu(func, tx);
-	else
-		send_hci(func, tx, t);
-}
-
-static int gdm_sdio_send(void *priv_dev, void *data, int len,
-			 void (*cb)(void *data), void *cb_data)
-{
-	struct sdiowm_dev *sdev = priv_dev;
-	struct tx_cxt *tx = &sdev->tx;
-	struct sdio_tx *t;
-	u8 *pkt = data;
-	int no_spc = 0;
-	u16 cmd_evt;
-	unsigned long flags;
-
-	if (len > TX_BUF_SIZE - TYPE_A_HEADER_SIZE)
-		return -EINVAL;
-
-	spin_lock_irqsave(&tx->lock, flags);
-
-	cmd_evt = (pkt[0] << 8) | pkt[1];
-	if (cmd_evt == WIMAX_TX_SDU) {
-		t = get_tx_struct(tx, &no_spc);
-		if (t == NULL) {
-			/* This case must not happen. */
-			spin_unlock_irqrestore(&tx->lock, flags);
-			return -ENOSPC;
-		}
-		list_add_tail(&t->list, &tx->sdu_list);
-
-		memcpy(t->buf, data, len);
-
-		t->len = len;
-		t->callback = cb;
-		t->cb_data = cb_data;
-	} else {
-		t = alloc_tx_struct(tx);
-		if (t == NULL) {
-			spin_unlock_irqrestore(&tx->lock, flags);
-			return -ENOMEM;
-		}
-		list_add_tail(&t->list, &tx->hci_list);
-
-		t->buf[0] = len & 0xff;
-		t->buf[1] = (len >> 8) & 0xff;
-		t->buf[2] = (len >> 16) & 0xff;
-		t->buf[3] = 2;
-		memcpy(t->buf + TYPE_A_HEADER_SIZE, data, len);
-
-		t->len = len + TYPE_A_HEADER_SIZE;
-		t->callback = cb;
-		t->cb_data = cb_data;
-	}
-
-	if (tx->can_send)
-		schedule_work(&sdev->ws);
-
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	if (no_spc)
-		return -ENOSPC;
-
-	return 0;
-}
-
-/* Handle the HCI, WIMAX_SDU_TX_FLOW. */
-static int control_sdu_tx_flow(struct sdiowm_dev *sdev, u8 *hci_data, int len)
-{
-	struct tx_cxt *tx = &sdev->tx;
-	u16 cmd_evt;
-	unsigned long flags;
-
-	spin_lock_irqsave(&tx->lock, flags);
-
-	cmd_evt = (hci_data[0] << 8) | (hci_data[1]);
-	if (cmd_evt != WIMAX_SDU_TX_FLOW)
-		goto out;
-
-	if (hci_data[4] == 0) {
-		dev_dbg(&sdev->func->dev, "WIMAX ==> STOP SDU TX\n");
-		tx->stop_sdu_tx = 1;
-	} else if (hci_data[4] == 1) {
-		dev_dbg(&sdev->func->dev, "WIMAX ==> START SDU TX\n");
-		tx->stop_sdu_tx = 0;
-		if (tx->can_send)
-			schedule_work(&sdev->ws);
-		/* If free buffer for sdu tx doesn't exist, then tx queue
-		 * should not be woken. For this reason, don't pass the command,
-		 * START_SDU_TX.
-		 */
-		if (list_empty(&tx->free_list))
-			len = 0;
-	}
-
-out:
-	spin_unlock_irqrestore(&tx->lock, flags);
-	return len;
-}
-
-static void gdm_sdio_irq(struct sdio_func *func)
-{
-	struct phy_dev *phy_dev = sdio_get_drvdata(func);
-	struct sdiowm_dev *sdev = phy_dev->priv_dev;
-	struct tx_cxt *tx = &sdev->tx;
-	struct rx_cxt *rx = &sdev->rx;
-	struct sdio_rx *r;
-	unsigned long flags;
-	u8 val, hdr[TYPE_A_LOOKAHEAD_SIZE], *buf;
-	u32 len, blocks, n;
-	int ret, remain;
-
-	/* Check interrupt */
-	val = sdio_readb(func, 0x13, &ret);
-	if (val & 0x01)
-		sdio_writeb(func, 0x01, 0x13, &ret);	/* clear interrupt */
-	else
-		return;
-
-	ret = sdio_memcpy_fromio(func, hdr, 0x0, TYPE_A_LOOKAHEAD_SIZE);
-	if (ret) {
-		dev_err(&func->dev,
-			"Cannot read from function %d\n", func->num);
-		goto done;
-	}
-
-	len = (hdr[2] << 16) | (hdr[1] << 8) | hdr[0];
-	if (len > (RX_BUF_SIZE - TYPE_A_HEADER_SIZE)) {
-		dev_err(&func->dev, "Too big Type-A size: %d\n", len);
-		goto done;
-	}
-
-	if (hdr[3] == 1) {	/* Ack */
-		u32 *ack_seq = (u32 *)&hdr[4];
-
-		spin_lock_irqsave(&tx->lock, flags);
-		tx->can_send = 1;
-
-		if (!list_empty(&tx->sdu_list) || !list_empty(&tx->hci_list))
-			schedule_work(&sdev->ws);
-		spin_unlock_irqrestore(&tx->lock, flags);
-		dev_dbg(&func->dev, "Ack... %0x\n", ntohl(*ack_seq));
-		goto done;
-	}
-
-	memcpy(rx->rx_buf, hdr + TYPE_A_HEADER_SIZE,
-	       TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE);
-
-	buf = rx->rx_buf + TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE;
-	remain = len - TYPE_A_LOOKAHEAD_SIZE + TYPE_A_HEADER_SIZE;
-	if (remain <= 0)
-		goto end_io;
-
-	blocks = remain / func->cur_blksize;
-
-	if (blocks) {
-		n = blocks * func->cur_blksize;
-		ret = sdio_memcpy_fromio(func, buf, 0x0, n);
-		if (ret) {
-			dev_err(&func->dev,
-				"Cannot read from function %d\n", func->num);
-			goto done;
-		}
-		buf += n;
-		remain -= n;
-	}
-
-	if (remain) {
-		ret = sdio_memcpy_fromio(func, buf, 0x0, remain);
-		if (ret) {
-			dev_err(&func->dev,
-				"Cannot read from function %d\n", func->num);
-			goto done;
-		}
-	}
-
-end_io:
-	dev_dbg(&func->dev, "sdio_receive: %*ph\n", len, rx->rx_buf);
-
-	len = control_sdu_tx_flow(sdev, rx->rx_buf, len);
-
-	spin_lock_irqsave(&rx->lock, flags);
-
-	if (!list_empty(&rx->req_list)) {
-		r = list_entry(rx->req_list.next, struct sdio_rx, list);
-		spin_unlock_irqrestore(&rx->lock, flags);
-		if (r->callback)
-			r->callback(r->cb_data, rx->rx_buf, len);
-		spin_lock_irqsave(&rx->lock, flags);
-		list_del(&r->list);
-		put_rx_struct(rx, r);
-	}
-
-	spin_unlock_irqrestore(&rx->lock, flags);
-
-done:
-	sdio_writeb(func, 0x00, 0x10, &ret);	/* PCRRT */
-	if (!phy_dev->netdev)
-		register_wimax_device(phy_dev, &func->dev);
-}
-
-static int gdm_sdio_receive(void *priv_dev,
-			    void (*cb)(void *cb_data, void *data, int len),
-			    void *cb_data)
-{
-	struct sdiowm_dev *sdev = priv_dev;
-	struct rx_cxt *rx = &sdev->rx;
-	struct sdio_rx *r;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rx->lock, flags);
-	r = get_rx_struct(rx);
-	if (r == NULL) {
-		spin_unlock_irqrestore(&rx->lock, flags);
-		return -ENOMEM;
-	}
-
-	r->callback = cb;
-	r->cb_data = cb_data;
-
-	list_add_tail(&r->list, &rx->req_list);
-	spin_unlock_irqrestore(&rx->lock, flags);
-
-	return 0;
-}
-
-static int sdio_wimax_probe(struct sdio_func *func,
-			    const struct sdio_device_id *id)
-{
-	int ret;
-	struct phy_dev *phy_dev = NULL;
-	struct sdiowm_dev *sdev = NULL;
-
-	dev_info(&func->dev, "Found GDM SDIO VID = 0x%04x PID = 0x%04x...\n",
-		 func->vendor, func->device);
-	dev_info(&func->dev, "GCT WiMax driver version %s\n", DRIVER_VERSION);
-
-	sdio_claim_host(func);
-	sdio_enable_func(func);
-	sdio_claim_irq(func, gdm_sdio_irq);
-
-	ret = sdio_boot(func);
-	if (ret)
-		return ret;
-
-	phy_dev = kzalloc(sizeof(*phy_dev), GFP_KERNEL);
-	if (phy_dev == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
-	if (sdev == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	phy_dev->priv_dev = (void *)sdev;
-	phy_dev->send_func = gdm_sdio_send;
-	phy_dev->rcv_func = gdm_sdio_receive;
-
-	ret = init_sdio(sdev);
-	if (ret < 0)
-		goto out;
-
-	sdev->func = func;
-
-	sdio_writeb(func, 1, 0x14, &ret);	/* Enable interrupt */
-	sdio_release_host(func);
-
-	INIT_WORK(&sdev->ws, do_tx);
-
-	sdio_set_drvdata(func, phy_dev);
-out:
-	if (ret) {
-		kfree(phy_dev);
-		kfree(sdev);
-	}
-
-	return ret;
-}
-
-static void sdio_wimax_remove(struct sdio_func *func)
-{
-	struct phy_dev *phy_dev = sdio_get_drvdata(func);
-	struct sdiowm_dev *sdev = phy_dev->priv_dev;
-
-	cancel_work_sync(&sdev->ws);
-	if (phy_dev->netdev)
-		unregister_wimax_device(phy_dev);
-	sdio_claim_host(func);
-	sdio_release_irq(func);
-	sdio_disable_func(func);
-	sdio_release_host(func);
-	release_sdio(sdev);
-
-	kfree(sdev);
-	kfree(phy_dev);
-}
-
-static const struct sdio_device_id sdio_wimax_ids[] = {
-	{ SDIO_DEVICE(0x0296, 0x5347) },
-	{0}
-};
-
-MODULE_DEVICE_TABLE(sdio, sdio_wimax_ids);
-
-static struct sdio_driver sdio_wimax_driver = {
-	.probe		= sdio_wimax_probe,
-	.remove		= sdio_wimax_remove,
-	.name		= "sdio_wimax",
-	.id_table	= sdio_wimax_ids,
-};
-
-static int __init sdio_gdm_wimax_init(void)
-{
-	return sdio_register_driver(&sdio_wimax_driver);
-}
-
-static void __exit sdio_gdm_wimax_exit(void)
-{
-	sdio_unregister_driver(&sdio_wimax_driver);
-}
-
-module_init(sdio_gdm_wimax_init);
-module_exit(sdio_gdm_wimax_exit);
-
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_DESCRIPTION("GCT WiMax SDIO Device Driver");
-MODULE_AUTHOR("Ethan Park");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/gdm72xx/gdm_sdio.h b/drivers/staging/gdm72xx/gdm_sdio.h
deleted file mode 100644
index 77ad9d686f8e..000000000000
--- a/drivers/staging/gdm72xx/gdm_sdio.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_GDM_SDIO_H__
-#define __GDM72XX_GDM_SDIO_H__
-
-#include <linux/types.h>
-#include <linux/time.h>
-
-#define MAX_NR_SDU_BUF  64
-
-struct sdio_tx {
-	struct list_head	list;
-	struct tx_cxt		*tx_cxt;
-	u8			*buf;
-	int			len;
-	void (*callback)(void *cb_data);
-	void *cb_data;
-};
-
-struct tx_cxt {
-	struct list_head	free_list;
-	struct list_head	sdu_list;
-	struct list_head	hci_list;
-	struct timeval		sdu_stamp;
-	u8			*sdu_buf;
-	spinlock_t		lock;
-	int			can_send;
-	int			stop_sdu_tx;
-};
-
-struct sdio_rx {
-	struct list_head	list;
-	struct rx_cxt		*rx_cxt;
-	void (*callback)(void *cb_data, void *data, int len);
-	void *cb_data;
-};
-
-struct rx_cxt {
-	struct list_head	free_list;
-	struct list_head	req_list;
-	u8			*rx_buf;
-	spinlock_t		lock;
-};
-
-struct sdiowm_dev {
-	struct sdio_func	*func;
-	struct tx_cxt		tx;
-	struct rx_cxt		rx;
-	struct work_struct	ws;
-};
-
-#endif /* __GDM72XX_GDM_SDIO_H__ */
diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
deleted file mode 100644
index eac2f3478bb9..000000000000
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ /dev/null
@@ -1,789 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/usb.h>
-#include <asm/byteorder.h>
-#include <linux/kthread.h>
-
-#include "gdm_usb.h"
-#include "gdm_wimax.h"
-#include "usb_boot.h"
-#include "hci.h"
-
-#include "usb_ids.h"
-
-MODULE_DEVICE_TABLE(usb, id_table);
-
-#define TX_BUF_SIZE		2048
-
-#if defined(CONFIG_WIMAX_GDM72XX_WIMAX2)
-#define RX_BUF_SIZE		(128*1024)	/* For packet aggregation */
-#else
-#define RX_BUF_SIZE		2048
-#endif
-
-#define GDM7205_PADDING		256
-
-#define DOWNLOAD_CONF_VALUE	0x21
-
-#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-
-static DECLARE_WAIT_QUEUE_HEAD(k_wait);
-static LIST_HEAD(k_list);
-static DEFINE_SPINLOCK(k_lock);
-static int k_mode_stop;
-
-#define K_WAIT_TIME		(2 * HZ / 100)
-
-#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
-
-static struct usb_tx *alloc_tx_struct(struct tx_cxt *tx)
-{
-	struct usb_tx *t = kzalloc(sizeof(*t), GFP_ATOMIC);
-
-	if (!t)
-		return NULL;
-
-	t->urb = usb_alloc_urb(0, GFP_ATOMIC);
-	t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
-	if (!t->urb || !t->buf) {
-		usb_free_urb(t->urb);
-		kfree(t->buf);
-		kfree(t);
-		return NULL;
-	}
-
-	t->tx_cxt = tx;
-
-	return t;
-}
-
-static void free_tx_struct(struct usb_tx *t)
-{
-	if (t) {
-		usb_free_urb(t->urb);
-		kfree(t->buf);
-		kfree(t);
-	}
-}
-
-static struct usb_rx *alloc_rx_struct(struct rx_cxt *rx)
-{
-	struct usb_rx *r = kzalloc(sizeof(*r), GFP_ATOMIC);
-
-	if (!r)
-		return NULL;
-
-	r->urb = usb_alloc_urb(0, GFP_ATOMIC);
-	r->buf = kmalloc(RX_BUF_SIZE, GFP_ATOMIC);
-	if (!r->urb || !r->buf) {
-		usb_free_urb(r->urb);
-		kfree(r->buf);
-		kfree(r);
-		return NULL;
-	}
-
-	r->rx_cxt = rx;
-	return r;
-}
-
-static void free_rx_struct(struct usb_rx *r)
-{
-	if (r) {
-		usb_free_urb(r->urb);
-		kfree(r->buf);
-		kfree(r);
-	}
-}
-
-/* Before this function is called, spin lock should be locked. */
-static struct usb_tx *get_tx_struct(struct tx_cxt *tx, int *no_spc)
-{
-	struct usb_tx *t;
-
-	if (list_empty(&tx->free_list)) {
-		*no_spc = 1;
-		return NULL;
-	}
-
-	t = list_entry(tx->free_list.next, struct usb_tx, list);
-	list_del(&t->list);
-
-	*no_spc = list_empty(&tx->free_list) ? 1 : 0;
-
-	return t;
-}
-
-/* Before this function is called, spin lock should be locked. */
-static void put_tx_struct(struct tx_cxt *tx, struct usb_tx *t)
-{
-	list_add_tail(&t->list, &tx->free_list);
-}
-
-/* Before this function is called, spin lock should be locked. */
-static struct usb_rx *get_rx_struct(struct rx_cxt *rx)
-{
-	struct usb_rx *r;
-
-	if (list_empty(&rx->free_list)) {
-		r = alloc_rx_struct(rx);
-		if (r == NULL)
-			return NULL;
-
-		list_add(&r->list, &rx->free_list);
-	}
-
-	r = list_entry(rx->free_list.next, struct usb_rx, list);
-	list_move_tail(&r->list, &rx->used_list);
-
-	return r;
-}
-
-/* Before this function is called, spin lock should be locked. */
-static void put_rx_struct(struct rx_cxt *rx, struct usb_rx *r)
-{
-	list_move(&r->list, &rx->free_list);
-}
-
-static void release_usb(struct usbwm_dev *udev)
-{
-	struct tx_cxt *tx = &udev->tx;
-	struct rx_cxt *rx = &udev->rx;
-	struct usb_tx *t, *t_next;
-	struct usb_rx *r, *r_next;
-	unsigned long flags;
-
-	spin_lock_irqsave(&tx->lock, flags);
-
-	list_for_each_entry_safe(t, t_next, &tx->sdu_list, list) {
-		list_del(&t->list);
-		free_tx_struct(t);
-	}
-
-	list_for_each_entry_safe(t, t_next, &tx->hci_list, list) {
-		list_del(&t->list);
-		free_tx_struct(t);
-	}
-
-	list_for_each_entry_safe(t, t_next, &tx->free_list, list) {
-		list_del(&t->list);
-		free_tx_struct(t);
-	}
-
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	spin_lock_irqsave(&rx->lock, flags);
-
-	list_for_each_entry_safe(r, r_next, &rx->free_list, list) {
-		list_del(&r->list);
-		free_rx_struct(r);
-	}
-
-	list_for_each_entry_safe(r, r_next, &rx->used_list, list) {
-		list_del(&r->list);
-		free_rx_struct(r);
-	}
-
-	spin_unlock_irqrestore(&rx->lock, flags);
-}
-
-static int init_usb(struct usbwm_dev *udev)
-{
-	int ret = 0, i;
-	struct tx_cxt *tx = &udev->tx;
-	struct rx_cxt *rx = &udev->rx;
-	struct usb_tx *t;
-	struct usb_rx *r;
-	unsigned long flags;
-
-	INIT_LIST_HEAD(&tx->free_list);
-	INIT_LIST_HEAD(&tx->sdu_list);
-	INIT_LIST_HEAD(&tx->hci_list);
-#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
-	INIT_LIST_HEAD(&tx->pending_list);
-#endif
-
-	INIT_LIST_HEAD(&rx->free_list);
-	INIT_LIST_HEAD(&rx->used_list);
-
-	spin_lock_init(&tx->lock);
-	spin_lock_init(&rx->lock);
-
-	spin_lock_irqsave(&tx->lock, flags);
-	for (i = 0; i < MAX_NR_SDU_BUF; i++) {
-		t = alloc_tx_struct(tx);
-		if (t == NULL) {
-			spin_unlock_irqrestore(&tx->lock, flags);
-			ret = -ENOMEM;
-			goto fail;
-		}
-		list_add(&t->list, &tx->free_list);
-	}
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	r = alloc_rx_struct(rx);
-	if (r == NULL) {
-		ret = -ENOMEM;
-		goto fail;
-	}
-
-	spin_lock_irqsave(&rx->lock, flags);
-	list_add(&r->list, &rx->free_list);
-	spin_unlock_irqrestore(&rx->lock, flags);
-	return ret;
-
-fail:
-	release_usb(udev);
-	return ret;
-}
-
-static void __gdm_usb_send_complete(struct urb *urb)
-{
-	struct usb_tx *t = urb->context;
-	struct tx_cxt *tx = t->tx_cxt;
-	u8 *pkt = t->buf;
-	u16 cmd_evt;
-
-	/* Completion by usb_unlink_urb */
-	if (urb->status == -ECONNRESET)
-		return;
-
-	if (t->callback)
-		t->callback(t->cb_data);
-
-	/* Delete from sdu list or hci list. */
-	list_del(&t->list);
-
-	cmd_evt = (pkt[0] << 8) | pkt[1];
-	if (cmd_evt == WIMAX_TX_SDU)
-		put_tx_struct(tx, t);
-	else
-		free_tx_struct(t);
-}
-
-static void gdm_usb_send_complete(struct urb *urb)
-{
-	struct usb_tx *t = urb->context;
-	struct tx_cxt *tx = t->tx_cxt;
-	unsigned long flags;
-
-	spin_lock_irqsave(&tx->lock, flags);
-	__gdm_usb_send_complete(urb);
-	spin_unlock_irqrestore(&tx->lock, flags);
-}
-
-static int gdm_usb_send(void *priv_dev, void *data, int len,
-			void (*cb)(void *data), void *cb_data)
-{
-	struct usbwm_dev *udev = priv_dev;
-	struct usb_device *usbdev = udev->usbdev;
-	struct tx_cxt *tx = &udev->tx;
-	struct usb_tx *t;
-	int padding = udev->padding;
-	int no_spc = 0, ret;
-	u8 *pkt = data;
-	u16 cmd_evt;
-	unsigned long flags;
-#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-	unsigned long flags2;
-#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
-
-	if (!udev->usbdev) {
-		dev_err(&usbdev->dev, "%s: No such device\n", __func__);
-		return -ENODEV;
-	}
-
-	if (len > TX_BUF_SIZE - padding - 1)
-		return -EINVAL;
-
-	spin_lock_irqsave(&tx->lock, flags);
-
-	cmd_evt = (pkt[0] << 8) | pkt[1];
-	if (cmd_evt == WIMAX_TX_SDU) {
-		t = get_tx_struct(tx, &no_spc);
-		if (t == NULL) {
-			/* This case must not happen. */
-			spin_unlock_irqrestore(&tx->lock, flags);
-			return -ENOSPC;
-		}
-		list_add_tail(&t->list, &tx->sdu_list);
-	} else {
-		t = alloc_tx_struct(tx);
-		if (t == NULL) {
-			spin_unlock_irqrestore(&tx->lock, flags);
-			return -ENOMEM;
-		}
-		list_add_tail(&t->list, &tx->hci_list);
-	}
-
-	memcpy(t->buf + padding, data, len);
-	t->callback = cb;
-	t->cb_data = cb_data;
-
-	/* In some cases, USB Module of WiMax is blocked when data size is
-	 * the multiple of 512. So, increment length by one in that case.
-	 */
-	if ((len % 512) == 0)
-		len++;
-
-	usb_fill_bulk_urb(t->urb, usbdev, usb_sndbulkpipe(usbdev, 1), t->buf,
-			  len + padding, gdm_usb_send_complete, t);
-
-	dev_dbg(&usbdev->dev, "usb_send: %*ph\n", len + padding, t->buf);
-
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-	if (usbdev->state & USB_STATE_SUSPENDED) {
-		list_add_tail(&t->p_list, &tx->pending_list);
-		schedule_work(&udev->pm_ws);
-		goto out;
-	}
-#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
-
-#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-	if (udev->bw_switch) {
-		list_add_tail(&t->p_list, &tx->pending_list);
-		goto out;
-	} else if (cmd_evt == WIMAX_SCAN) {
-		struct rx_cxt *rx;
-		struct usb_rx *r;
-
-		rx = &udev->rx;
-
-		spin_lock_irqsave(&rx->lock, flags2);
-		list_for_each_entry(r, &rx->used_list, list)
-			usb_unlink_urb(r->urb);
-		spin_unlock_irqrestore(&rx->lock, flags2);
-
-		udev->bw_switch = 1;
-
-		spin_lock_irqsave(&k_lock, flags2);
-		list_add_tail(&udev->list, &k_list);
-		spin_unlock_irqrestore(&k_lock, flags2);
-
-		wake_up(&k_wait);
-	}
-#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
-
-	ret = usb_submit_urb(t->urb, GFP_ATOMIC);
-	if (ret)
-		goto send_fail;
-
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-	usb_mark_last_busy(usbdev);
-#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
-
-#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
-out:
-#endif
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-	if (no_spc)
-		return -ENOSPC;
-
-	return 0;
-
-send_fail:
-	t->callback = NULL;
-	__gdm_usb_send_complete(t->urb);
-	spin_unlock_irqrestore(&tx->lock, flags);
-	return ret;
-}
-
-static void gdm_usb_rcv_complete(struct urb *urb)
-{
-	struct usb_rx *r = urb->context;
-	struct rx_cxt *rx = r->rx_cxt;
-	struct usbwm_dev *udev = container_of(r->rx_cxt, struct usbwm_dev, rx);
-	struct tx_cxt *tx = &udev->tx;
-	struct usb_tx *t;
-	u16 cmd_evt;
-	unsigned long flags, flags2;
-	struct usb_device *dev = urb->dev;
-
-	/* Completion by usb_unlink_urb */
-	if (urb->status == -ECONNRESET)
-		return;
-
-	spin_lock_irqsave(&tx->lock, flags);
-
-	if (!urb->status) {
-		cmd_evt = (r->buf[0] << 8) | (r->buf[1]);
-
-		dev_dbg(&dev->dev, "usb_receive: %*ph\n", urb->actual_length,
-			r->buf);
-
-		if (cmd_evt == WIMAX_SDU_TX_FLOW) {
-			if (r->buf[4] == 0) {
-				dev_dbg(&dev->dev, "WIMAX ==> STOP SDU TX\n");
-				list_for_each_entry(t, &tx->sdu_list, list)
-					usb_unlink_urb(t->urb);
-			} else if (r->buf[4] == 1) {
-				dev_dbg(&dev->dev, "WIMAX ==> START SDU TX\n");
-				list_for_each_entry(t, &tx->sdu_list, list) {
-					usb_submit_urb(t->urb, GFP_ATOMIC);
-				}
-				/* If free buffer for sdu tx doesn't
-				 * exist, then tx queue should not be
-				 * woken. For this reason, don't pass
-				 * the command, START_SDU_TX.
-				 */
-				if (list_empty(&tx->free_list))
-					urb->actual_length = 0;
-			}
-		}
-	}
-
-	if (!urb->status && r->callback)
-		r->callback(r->cb_data, r->buf, urb->actual_length);
-
-	spin_lock_irqsave(&rx->lock, flags2);
-	put_rx_struct(rx, r);
-	spin_unlock_irqrestore(&rx->lock, flags2);
-
-	spin_unlock_irqrestore(&tx->lock, flags);
-
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-	usb_mark_last_busy(dev);
-#endif
-}
-
-static int gdm_usb_receive(void *priv_dev,
-			   void (*cb)(void *cb_data, void *data, int len),
-			   void *cb_data)
-{
-	struct usbwm_dev *udev = priv_dev;
-	struct usb_device *usbdev = udev->usbdev;
-	struct rx_cxt *rx = &udev->rx;
-	struct usb_rx *r;
-	unsigned long flags;
-
-	if (!udev->usbdev) {
-		dev_err(&usbdev->dev, "%s: No such device\n", __func__);
-		return -ENODEV;
-	}
-
-	spin_lock_irqsave(&rx->lock, flags);
-	r = get_rx_struct(rx);
-	spin_unlock_irqrestore(&rx->lock, flags);
-
-	if (r == NULL)
-		return -ENOMEM;
-
-	r->callback = cb;
-	r->cb_data = cb_data;
-
-	usb_fill_bulk_urb(r->urb, usbdev, usb_rcvbulkpipe(usbdev, 0x82), r->buf,
-			  RX_BUF_SIZE, gdm_usb_rcv_complete, r);
-
-	return usb_submit_urb(r->urb, GFP_ATOMIC);
-}
-
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-static void do_pm_control(struct work_struct *work)
-{
-	struct usbwm_dev *udev = container_of(work, struct usbwm_dev, pm_ws);
-	struct tx_cxt *tx = &udev->tx;
-	int ret;
-	unsigned long flags;
-
-	ret = usb_autopm_get_interface(udev->intf);
-	if (!ret)
-		usb_autopm_put_interface(udev->intf);
-
-	spin_lock_irqsave(&tx->lock, flags);
-	if (!(udev->usbdev->state & USB_STATE_SUSPENDED) &&
-	    (!list_empty(&tx->hci_list) || !list_empty(&tx->sdu_list))) {
-		struct usb_tx *t, *temp;
-
-		list_for_each_entry_safe(t, temp, &tx->pending_list, p_list) {
-			list_del(&t->p_list);
-			ret =  usb_submit_urb(t->urb, GFP_ATOMIC);
-
-			if (ret) {
-				t->callback = NULL;
-				__gdm_usb_send_complete(t->urb);
-			}
-		}
-	}
-	spin_unlock_irqrestore(&tx->lock, flags);
-}
-#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
-
-static int gdm_usb_probe(struct usb_interface *intf,
-			 const struct usb_device_id *id)
-{
-	int ret = 0;
-	u8 bConfigurationValue;
-	struct phy_dev *phy_dev = NULL;
-	struct usbwm_dev *udev = NULL;
-	u16 idVendor, idProduct, bcdDevice;
-
-	struct usb_device *usbdev = interface_to_usbdev(intf);
-
-	usb_get_dev(usbdev);
-	bConfigurationValue = usbdev->actconfig->desc.bConfigurationValue;
-
-	/*USB description is set up with Little-Endian*/
-	idVendor = le16_to_cpu(usbdev->descriptor.idVendor);
-	idProduct = le16_to_cpu(usbdev->descriptor.idProduct);
-	bcdDevice = le16_to_cpu(usbdev->descriptor.bcdDevice);
-
-	dev_info(&intf->dev, "Found GDM USB VID = 0x%04x PID = 0x%04x...\n",
-		 idVendor, idProduct);
-	dev_info(&intf->dev, "GCT WiMax driver version %s\n", DRIVER_VERSION);
-
-
-	if (idProduct == EMERGENCY_PID) {
-		ret = usb_emergency(usbdev);
-		goto out;
-	}
-
-	/* Support for EEPROM bootloader */
-	if (bConfigurationValue == DOWNLOAD_CONF_VALUE ||
-	    idProduct & B_DOWNLOAD) {
-		ret = usb_boot(usbdev, bcdDevice);
-		goto out;
-	}
-
-	phy_dev = kzalloc(sizeof(*phy_dev), GFP_KERNEL);
-	if (phy_dev == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	udev = kzalloc(sizeof(*udev), GFP_KERNEL);
-	if (udev == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	if (idProduct == 0x7205 || idProduct == 0x7206)
-		udev->padding = GDM7205_PADDING;
-	else
-		udev->padding = 0;
-
-	phy_dev->priv_dev = (void *)udev;
-	phy_dev->send_func = gdm_usb_send;
-	phy_dev->rcv_func = gdm_usb_receive;
-
-	ret = init_usb(udev);
-	if (ret < 0)
-		goto out;
-
-	udev->usbdev = usbdev;
-
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-	udev->intf = intf;
-
-	intf->needs_remote_wakeup = 1;
-	device_init_wakeup(&intf->dev, 1);
-
-	pm_runtime_set_autosuspend_delay(&usbdev->dev, 10 * 1000); /* msec */
-
-	INIT_WORK(&udev->pm_ws, do_pm_control);
-#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
-
-	ret = register_wimax_device(phy_dev, &intf->dev);
-	if (ret)
-		release_usb(udev);
-
-out:
-	if (ret) {
-		kfree(phy_dev);
-		kfree(udev);
-		usb_put_dev(usbdev);
-	} else {
-		usb_set_intfdata(intf, phy_dev);
-	}
-	return ret;
-}
-
-static void gdm_usb_disconnect(struct usb_interface *intf)
-{
-	u8 bConfigurationValue;
-	struct phy_dev *phy_dev;
-	struct usbwm_dev *udev;
-	u16 idProduct;
-	struct usb_device *usbdev = interface_to_usbdev(intf);
-
-	bConfigurationValue = usbdev->actconfig->desc.bConfigurationValue;
-	phy_dev = usb_get_intfdata(intf);
-
-	/*USB description is set up with Little-Endian*/
-	idProduct = le16_to_cpu(usbdev->descriptor.idProduct);
-
-	if (idProduct != EMERGENCY_PID &&
-	    bConfigurationValue != DOWNLOAD_CONF_VALUE &&
-	    (idProduct & B_DOWNLOAD) == 0) {
-		udev = phy_dev->priv_dev;
-		udev->usbdev = NULL;
-
-		unregister_wimax_device(phy_dev);
-		release_usb(udev);
-		kfree(udev);
-		kfree(phy_dev);
-	}
-
-	usb_put_dev(usbdev);
-}
-
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-static int gdm_suspend(struct usb_interface *intf, pm_message_t pm_msg)
-{
-	struct phy_dev *phy_dev;
-	struct usbwm_dev *udev;
-	struct rx_cxt *rx;
-	struct usb_rx *r;
-	unsigned long flags;
-
-	phy_dev = usb_get_intfdata(intf);
-	if (!phy_dev)
-		return 0;
-
-	udev = phy_dev->priv_dev;
-	rx = &udev->rx;
-
-	spin_lock_irqsave(&rx->lock, flags);
-
-	list_for_each_entry(r, &rx->used_list, list)
-		usb_unlink_urb(r->urb);
-
-	spin_unlock_irqrestore(&rx->lock, flags);
-
-	return 0;
-}
-
-static int gdm_resume(struct usb_interface *intf)
-{
-	struct phy_dev *phy_dev;
-	struct usbwm_dev *udev;
-	struct rx_cxt *rx;
-	struct usb_rx *r;
-	unsigned long flags;
-
-	phy_dev = usb_get_intfdata(intf);
-	if (!phy_dev)
-		return 0;
-
-	udev = phy_dev->priv_dev;
-	rx = &udev->rx;
-
-	spin_lock_irqsave(&rx->lock, flags);
-
-	list_for_each_entry(r, &rx->used_list, list)
-		usb_submit_urb(r->urb, GFP_ATOMIC);
-
-	spin_unlock_irqrestore(&rx->lock, flags);
-
-	return 0;
-}
-
-#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
-
-#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-static int k_mode_thread(void *arg)
-{
-	struct usbwm_dev *udev;
-	struct tx_cxt *tx;
-	struct rx_cxt *rx;
-	struct usb_tx *t, *temp;
-	struct usb_rx *r;
-	unsigned long flags, flags2, expire;
-	int ret;
-
-	while (!k_mode_stop) {
-		spin_lock_irqsave(&k_lock, flags2);
-		while (!list_empty(&k_list)) {
-			udev = list_entry(k_list.next, struct usbwm_dev, list);
-			tx = &udev->tx;
-			rx = &udev->rx;
-
-			list_del(&udev->list);
-			spin_unlock_irqrestore(&k_lock, flags2);
-
-			expire = jiffies + K_WAIT_TIME;
-			while (time_before(jiffies, expire))
-				schedule_timeout(K_WAIT_TIME);
-
-			spin_lock_irqsave(&rx->lock, flags);
-
-			list_for_each_entry(r, &rx->used_list, list)
-				usb_submit_urb(r->urb, GFP_ATOMIC);
-
-			spin_unlock_irqrestore(&rx->lock, flags);
-
-			spin_lock_irqsave(&tx->lock, flags);
-
-			list_for_each_entry_safe(t, temp, &tx->pending_list,
-						 p_list) {
-				list_del(&t->p_list);
-				ret = usb_submit_urb(t->urb, GFP_ATOMIC);
-
-				if (ret) {
-					t->callback = NULL;
-					__gdm_usb_send_complete(t->urb);
-				}
-			}
-
-			udev->bw_switch = 0;
-			spin_unlock_irqrestore(&tx->lock, flags);
-
-			spin_lock_irqsave(&k_lock, flags2);
-		}
-		wait_event_interruptible_lock_irq(k_wait,
-						  !list_empty(&k_list) ||
-						  k_mode_stop, k_lock);
-		spin_unlock_irqrestore(&k_lock, flags2);
-	}
-	return 0;
-}
-#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
-
-static struct usb_driver gdm_usb_driver = {
-	.name = "gdm_wimax",
-	.probe = gdm_usb_probe,
-	.disconnect = gdm_usb_disconnect,
-	.id_table = id_table,
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-	.supports_autosuspend = 1,
-	.suspend = gdm_suspend,
-	.resume = gdm_resume,
-	.reset_resume = gdm_resume,
-#endif
-};
-
-static int __init usb_gdm_wimax_init(void)
-{
-#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-	kthread_run(k_mode_thread, NULL, "k_mode_wimax");
-#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
-	return usb_register(&gdm_usb_driver);
-}
-
-static void __exit usb_gdm_wimax_exit(void)
-{
-#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-	k_mode_stop = 1;
-	wake_up(&k_wait);
-#endif
-	usb_deregister(&gdm_usb_driver);
-}
-
-module_init(usb_gdm_wimax_init);
-module_exit(usb_gdm_wimax_exit);
-
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_DESCRIPTION("GCT WiMax Device Driver");
-MODULE_AUTHOR("Ethan Park");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/gdm72xx/gdm_usb.h b/drivers/staging/gdm72xx/gdm_usb.h
deleted file mode 100644
index 8e58a25e7143..000000000000
--- a/drivers/staging/gdm72xx/gdm_usb.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_GDM_USB_H__
-#define __GDM72XX_GDM_USB_H__
-
-#include <linux/types.h>
-#include <linux/usb.h>
-#include <linux/list.h>
-
-#define B_DIFF_DL_DRV		(1 << 4)
-#define B_DOWNLOAD		(1 << 5)
-#define MAX_NR_SDU_BUF		64
-
-struct usb_tx {
-	struct list_head	list;
-#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
-	struct list_head	p_list;
-#endif
-	struct tx_cxt		*tx_cxt;
-	struct urb		*urb;
-	u8			*buf;
-	void (*callback)(void *cb_data);
-	void			*cb_data;
-};
-
-struct tx_cxt {
-	struct list_head	free_list;
-	struct list_head	sdu_list;
-	struct list_head	hci_list;
-#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
-	struct list_head	pending_list;
-#endif
-	spinlock_t		lock;
-};
-
-struct usb_rx {
-	struct list_head	list;
-	struct rx_cxt		*rx_cxt;
-	struct urb		*urb;
-	u8			*buf;
-	void (*callback)(void *cb_data, void *data, int len);
-	void *cb_data;
-};
-
-struct rx_cxt {
-	struct list_head	free_list;
-	struct list_head	used_list;
-	spinlock_t		lock;
-};
-
-struct usbwm_dev {
-	struct usb_device	*usbdev;
-#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
-	struct work_struct	pm_ws;
-
-	struct usb_interface	*intf;
-#endif
-#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
-	int bw_switch;
-	struct list_head	list;
-#endif
-	struct tx_cxt		tx;
-	struct rx_cxt		rx;
-	int			padding;
-};
-
-#endif /* __GDM72XX_GDM_USB_H__ */
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
deleted file mode 100644
index 08290d901b0c..000000000000
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ /dev/null
@@ -1,816 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/etherdevice.h>
-#include <asm/byteorder.h>
-#include <linux/ip.h>
-#include <linux/ipv6.h>
-#include <linux/udp.h>
-#include <linux/in.h>
-
-#include "gdm_wimax.h"
-#include "hci.h"
-#include "wm_ioctl.h"
-#include "netlink_k.h"
-
-#define gdm_wimax_send(n, d, l)	\
-	(n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, NULL, NULL)
-#define gdm_wimax_send_with_cb(n, d, l, c, b)	\
-	(n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, c, b)
-#define gdm_wimax_rcv_with_cb(n, c, b)	\
-	(n->phy_dev->rcv_func)(n->phy_dev->priv_dev, c, b)
-
-#define EVT_MAX_SIZE	2048
-
-struct evt_entry {
-	struct	list_head list;
-	struct	net_device *dev;
-	char	evt_data[EVT_MAX_SIZE];
-	int	size;
-};
-
-static struct {
-	int ref_cnt;
-	struct sock *sock;
-	struct list_head evtq;
-	spinlock_t evt_lock;
-	struct list_head freeq;
-	struct work_struct ws;
-} wm_event;
-
-static u8 gdm_wimax_macaddr[6] = {0x00, 0x0a, 0x3b, 0xf0, 0x01, 0x30};
-
-static inline int gdm_wimax_header(struct sk_buff **pskb)
-{
-	u16 buf[HCI_HEADER_SIZE / sizeof(u16)];
-	struct hci_s *hci = (struct hci_s *)buf;
-	struct sk_buff *skb = *pskb;
-
-	if (unlikely(skb_headroom(skb) < HCI_HEADER_SIZE)) {
-		struct sk_buff *skb2;
-
-		skb2 = skb_realloc_headroom(skb, HCI_HEADER_SIZE);
-		if (skb2 == NULL)
-			return -ENOMEM;
-		if (skb->sk)
-			skb_set_owner_w(skb2, skb->sk);
-		kfree_skb(skb);
-		skb = skb2;
-	}
-
-	skb_push(skb, HCI_HEADER_SIZE);
-	hci->cmd_evt = cpu_to_be16(WIMAX_TX_SDU);
-	hci->length = cpu_to_be16(skb->len - HCI_HEADER_SIZE);
-	memcpy(skb->data, buf, HCI_HEADER_SIZE);
-
-	*pskb = skb;
-	return 0;
-}
-
-static inline struct evt_entry *alloc_event_entry(void)
-{
-	return kmalloc(sizeof(struct evt_entry), GFP_ATOMIC);
-}
-
-static inline void free_event_entry(struct evt_entry *e)
-{
-	kfree(e);
-}
-
-static struct evt_entry *get_event_entry(void)
-{
-	struct evt_entry *e;
-
-	if (list_empty(&wm_event.freeq)) {
-		e = alloc_event_entry();
-	} else {
-		e = list_entry(wm_event.freeq.next, struct evt_entry, list);
-		list_del(&e->list);
-	}
-
-	return e;
-}
-
-static void put_event_entry(struct evt_entry *e)
-{
-	BUG_ON(!e);
-
-	list_add_tail(&e->list, &wm_event.freeq);
-}
-
-static void gdm_wimax_event_rcv(struct net_device *dev, u16 type, void *msg,
-				int len)
-{
-	struct nic *nic = netdev_priv(dev);
-
-	u8 *buf = msg;
-	u16 hci_cmd =  (buf[0]<<8) | buf[1];
-	u16 hci_len = (buf[2]<<8) | buf[3];
-
-	netdev_dbg(dev, "H=>D: 0x%04x(%d)\n", hci_cmd, hci_len);
-
-	gdm_wimax_send(nic, msg, len);
-}
-
-static void __gdm_wimax_event_send(struct work_struct *work)
-{
-	int idx;
-	unsigned long flags;
-	struct evt_entry *e;
-	struct evt_entry *tmp;
-
-	spin_lock_irqsave(&wm_event.evt_lock, flags);
-
-	list_for_each_entry_safe(e, tmp, &wm_event.evtq, list) {
-		spin_unlock_irqrestore(&wm_event.evt_lock, flags);
-
-		if (sscanf(e->dev->name, "wm%d", &idx) == 1)
-			netlink_send(wm_event.sock, idx, 0, e->evt_data,
-				     e->size);
-
-		spin_lock_irqsave(&wm_event.evt_lock, flags);
-		list_del(&e->list);
-		put_event_entry(e);
-	}
-
-	spin_unlock_irqrestore(&wm_event.evt_lock, flags);
-}
-
-static int gdm_wimax_event_init(void)
-{
-	if (!wm_event.ref_cnt) {
-		wm_event.sock = netlink_init(NETLINK_WIMAX,
-						gdm_wimax_event_rcv);
-		if (wm_event.sock) {
-			INIT_LIST_HEAD(&wm_event.evtq);
-			INIT_LIST_HEAD(&wm_event.freeq);
-			INIT_WORK(&wm_event.ws, __gdm_wimax_event_send);
-			spin_lock_init(&wm_event.evt_lock);
-		}
-	}
-
-	if (wm_event.sock) {
-		wm_event.ref_cnt++;
-		return 0;
-	}
-
-	pr_err("Creating WiMax Event netlink is failed\n");
-	return -1;
-}
-
-static void gdm_wimax_event_exit(void)
-{
-	if (wm_event.sock && --wm_event.ref_cnt == 0) {
-		struct evt_entry *e, *temp;
-		unsigned long flags;
-
-		spin_lock_irqsave(&wm_event.evt_lock, flags);
-
-		list_for_each_entry_safe(e, temp, &wm_event.evtq, list) {
-			list_del(&e->list);
-			free_event_entry(e);
-		}
-		list_for_each_entry_safe(e, temp, &wm_event.freeq, list) {
-			list_del(&e->list);
-			free_event_entry(e);
-		}
-
-		spin_unlock_irqrestore(&wm_event.evt_lock, flags);
-		netlink_exit(wm_event.sock);
-		wm_event.sock = NULL;
-	}
-}
-
-static int gdm_wimax_event_send(struct net_device *dev, char *buf, int size)
-{
-	struct evt_entry *e;
-	unsigned long flags;
-
-	u16 hci_cmd =  ((u8)buf[0]<<8) | (u8)buf[1];
-	u16 hci_len = ((u8)buf[2]<<8) | (u8)buf[3];
-
-	netdev_dbg(dev, "D=>H: 0x%04x(%d)\n", hci_cmd, hci_len);
-
-	spin_lock_irqsave(&wm_event.evt_lock, flags);
-
-	e = get_event_entry();
-	if (!e) {
-		netdev_err(dev, "%s: No memory for event\n", __func__);
-		spin_unlock_irqrestore(&wm_event.evt_lock, flags);
-		return -ENOMEM;
-	}
-
-	e->dev = dev;
-	e->size = size;
-	memcpy(e->evt_data, buf, size);
-
-	list_add_tail(&e->list, &wm_event.evtq);
-	spin_unlock_irqrestore(&wm_event.evt_lock, flags);
-
-	schedule_work(&wm_event.ws);
-
-	return 0;
-}
-
-static void tx_complete(void *arg)
-{
-	struct nic *nic = arg;
-
-	if (netif_queue_stopped(nic->netdev))
-		netif_wake_queue(nic->netdev);
-}
-
-int gdm_wimax_send_tx(struct sk_buff *skb, struct net_device *dev)
-{
-	int ret = 0;
-	struct nic *nic = netdev_priv(dev);
-
-	ret = gdm_wimax_send_with_cb(nic, skb->data, skb->len, tx_complete,
-				     nic);
-	if (ret == -ENOSPC) {
-		netif_stop_queue(dev);
-		ret = 0;
-	}
-
-	if (ret) {
-		skb_pull(skb, HCI_HEADER_SIZE);
-		return ret;
-	}
-
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len - HCI_HEADER_SIZE;
-	kfree_skb(skb);
-	return ret;
-}
-
-static int gdm_wimax_tx(struct sk_buff *skb, struct net_device *dev)
-{
-	int ret = 0;
-
-	ret = gdm_wimax_header(&skb);
-	if (ret < 0) {
-		skb_pull(skb, HCI_HEADER_SIZE);
-		return ret;
-	}
-
-#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-	ret = gdm_qos_send_hci_pkt(skb, dev);
-#else
-	ret = gdm_wimax_send_tx(skb, dev);
-#endif
-	return ret;
-}
-
-static int gdm_wimax_set_config(struct net_device *dev, struct ifmap *map)
-{
-	if (dev->flags & IFF_UP)
-		return -EBUSY;
-
-	return 0;
-}
-
-static void __gdm_wimax_set_mac_addr(struct net_device *dev, char *mac_addr)
-{
-	u16 hci_pkt_buf[32 / sizeof(u16)];
-	struct hci_s *hci = (struct hci_s *)hci_pkt_buf;
-	struct nic *nic = netdev_priv(dev);
-
-	/* Since dev is registered as a ethernet device,
-	 * ether_setup has made dev->addr_len to be ETH_ALEN
-	 */
-	memcpy(dev->dev_addr, mac_addr, dev->addr_len);
-
-	/* Let lower layer know of this change by sending
-	 * SetInformation(MAC Address)
-	 */
-	hci->cmd_evt = cpu_to_be16(WIMAX_SET_INFO);
-	hci->length = cpu_to_be16(8);
-	hci->data[0] = 0; /* T */
-	hci->data[1] = 6; /* L */
-	memcpy(&hci->data[2], mac_addr, dev->addr_len); /* V */
-
-	gdm_wimax_send(nic, hci, HCI_HEADER_SIZE + 8);
-}
-
-/* A driver function */
-static int gdm_wimax_set_mac_addr(struct net_device *dev, void *p)
-{
-	struct sockaddr *addr = p;
-
-	if (netif_running(dev))
-		return -EBUSY;
-
-	if (!is_valid_ether_addr(addr->sa_data))
-		return -EADDRNOTAVAIL;
-
-	__gdm_wimax_set_mac_addr(dev, addr->sa_data);
-
-	return 0;
-}
-
-static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up)
-{
-	u16 buf[32 / sizeof(u16)];
-	struct hci_s *hci = (struct hci_s *)buf;
-	unsigned char up_down;
-
-	up_down = if_up ? WIMAX_IF_UP : WIMAX_IF_DOWN;
-
-	/* Indicate updating fsm */
-	hci->cmd_evt = cpu_to_be16(WIMAX_IF_UPDOWN);
-	hci->length = cpu_to_be16(sizeof(up_down));
-	hci->data[0] = up_down;
-
-	gdm_wimax_event_send(dev, (char *)hci, HCI_HEADER_SIZE+sizeof(up_down));
-}
-
-static int gdm_wimax_open(struct net_device *dev)
-{
-	struct nic *nic = netdev_priv(dev);
-	struct fsm_s *fsm = (struct fsm_s *)nic->sdk_data[SIOC_DATA_FSM].buf;
-
-	netif_start_queue(dev);
-
-	if (fsm && fsm->m_status != M_INIT)
-		gdm_wimax_ind_if_updown(dev, 1);
-	return 0;
-}
-
-static int gdm_wimax_close(struct net_device *dev)
-{
-	struct nic *nic = netdev_priv(dev);
-	struct fsm_s *fsm = (struct fsm_s *)nic->sdk_data[SIOC_DATA_FSM].buf;
-
-	netif_stop_queue(dev);
-
-	if (fsm && fsm->m_status != M_INIT)
-		gdm_wimax_ind_if_updown(dev, 0);
-	return 0;
-}
-
-static void kdelete(void **buf)
-{
-	if (buf && *buf) {
-		kfree(*buf);
-		*buf = NULL;
-	}
-}
-
-static int gdm_wimax_ioctl_get_data(struct data_s *dst, struct data_s *src)
-{
-	int size;
-
-	size = dst->size < src->size ? dst->size : src->size;
-
-	dst->size = size;
-	if (src->size) {
-		if (!dst->buf)
-			return -EINVAL;
-		if (copy_to_user((void __user *)dst->buf, src->buf, size))
-			return -EFAULT;
-	}
-	return 0;
-}
-
-static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct data_s *src)
-{
-	if (!src->size) {
-		dst->size = 0;
-		return 0;
-	}
-
-	if (!src->buf)
-		return -EINVAL;
-
-	if (!(dst->buf && dst->size == src->size)) {
-		kdelete(&dst->buf);
-		dst->buf = kmalloc(src->size, GFP_KERNEL);
-		if (dst->buf == NULL)
-			return -ENOMEM;
-	}
-
-	if (copy_from_user(dst->buf, (void __user *)src->buf, src->size)) {
-		kdelete(&dst->buf);
-		return -EFAULT;
-	}
-	dst->size = src->size;
-	return 0;
-}
-
-static void gdm_wimax_cleanup_ioctl(struct net_device *dev)
-{
-	struct nic *nic = netdev_priv(dev);
-	int i;
-
-	for (i = 0; i < SIOC_DATA_MAX; i++)
-		kdelete(&nic->sdk_data[i].buf);
-}
-
-static void gdm_wimax_ind_fsm_update(struct net_device *dev, struct fsm_s *fsm)
-{
-	u16 buf[32 / sizeof(u16)];
-	struct hci_s *hci = (struct hci_s *)buf;
-
-	/* Indicate updating fsm */
-	hci->cmd_evt = cpu_to_be16(WIMAX_FSM_UPDATE);
-	hci->length = cpu_to_be16(sizeof(struct fsm_s));
-	memcpy(&hci->data[0], fsm, sizeof(struct fsm_s));
-
-	gdm_wimax_event_send(dev, (char *)hci,
-			     HCI_HEADER_SIZE + sizeof(struct fsm_s));
-}
-
-static void gdm_update_fsm(struct net_device *dev, struct fsm_s *new_fsm)
-{
-	struct nic *nic = netdev_priv(dev);
-	struct fsm_s *cur_fsm = (struct fsm_s *)
-					nic->sdk_data[SIOC_DATA_FSM].buf;
-
-	if (!cur_fsm)
-		return;
-
-	if (cur_fsm->m_status != new_fsm->m_status ||
-	    cur_fsm->c_status != new_fsm->c_status) {
-		if (new_fsm->m_status == M_CONNECTED) {
-			netif_carrier_on(dev);
-		} else if (cur_fsm->m_status == M_CONNECTED) {
-			netif_carrier_off(dev);
-			#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-			gdm_qos_release_list(nic);
-			#endif
-		}
-		gdm_wimax_ind_fsm_update(dev, new_fsm);
-	}
-}
-
-static int gdm_wimax_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	struct wm_req_s *req = (struct wm_req_s *)ifr;
-	struct nic *nic = netdev_priv(dev);
-	int ret;
-
-	if (cmd != SIOCWMIOCTL)
-		return -EOPNOTSUPP;
-
-	switch (req->cmd) {
-	case SIOCG_DATA:
-	case SIOCS_DATA:
-		if (req->data_id >= SIOC_DATA_MAX) {
-			netdev_err(dev, "%s error: data-index(%d) is invalid!!\n",
-				   __func__, req->data_id);
-			return -EOPNOTSUPP;
-		}
-		if (req->cmd == SIOCG_DATA) {
-			ret = gdm_wimax_ioctl_get_data(
-				&req->data, &nic->sdk_data[req->data_id]);
-			if (ret < 0)
-				return ret;
-		} else if (req->cmd == SIOCS_DATA) {
-			if (req->data_id == SIOC_DATA_FSM) {
-				/* NOTE: gdm_update_fsm should be called
-				 * before gdm_wimax_ioctl_set_data is called.
-				 */
-				gdm_update_fsm(dev,
-					       (struct fsm_s *)req->data.buf);
-			}
-			ret = gdm_wimax_ioctl_set_data(
-				&nic->sdk_data[req->data_id], &req->data);
-			if (ret < 0)
-				return ret;
-		}
-		break;
-	default:
-		netdev_err(dev, "%s: %x unknown ioctl\n", __func__, cmd);
-		return -EOPNOTSUPP;
-	}
-
-	return 0;
-}
-
-static void gdm_wimax_prepare_device(struct net_device *dev)
-{
-	struct nic *nic = netdev_priv(dev);
-	u16 buf[32 / sizeof(u16)];
-	struct hci_s *hci = (struct hci_s *)buf;
-	u16 len = 0;
-	u32 val = 0;
-	__be32 val_be32;
-
-	/* GetInformation mac address */
-	len = 0;
-	hci->cmd_evt = cpu_to_be16(WIMAX_GET_INFO);
-	hci->data[len++] = TLV_T(T_MAC_ADDRESS);
-	hci->length = cpu_to_be16(len);
-	gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
-
-	val = T_CAPABILITY_WIMAX | T_CAPABILITY_MULTI_CS;
-	#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-	val |= T_CAPABILITY_QOS;
-	#endif
-	#if defined(CONFIG_WIMAX_GDM72XX_WIMAX2)
-	val |= T_CAPABILITY_AGGREGATION;
-	#endif
-
-	/* Set capability */
-	len = 0;
-	hci->cmd_evt = cpu_to_be16(WIMAX_SET_INFO);
-	hci->data[len++] = TLV_T(T_CAPABILITY);
-	hci->data[len++] = TLV_L(T_CAPABILITY);
-	val_be32 = cpu_to_be32(val);
-	memcpy(&hci->data[len], &val_be32, TLV_L(T_CAPABILITY));
-	len += TLV_L(T_CAPABILITY);
-	hci->length = cpu_to_be16(len);
-	gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
-
-	netdev_info(dev, "GDM WiMax Set CAPABILITY: 0x%08X\n", val);
-}
-
-static int gdm_wimax_hci_get_tlv(u8 *buf, u8 *T, u16 *L, u8 **V)
-{
-	#define __U82U16(b) ((u16)((u8 *)(b))[0] | ((u16)((u8 *)(b))[1] << 8))
-	int next_pos;
-
-	*T = buf[0];
-	if (buf[1] == 0x82) {
-		*L = be16_to_cpu(__U82U16(&buf[2]));
-		next_pos = 1/*type*/+3/*len*/;
-	} else {
-		*L = buf[1];
-		next_pos = 1/*type*/+1/*len*/;
-	}
-	*V = &buf[next_pos];
-
-	next_pos += *L/*length of val*/;
-	return next_pos;
-}
-
-static int gdm_wimax_get_prepared_info(struct net_device *dev, char *buf,
-				       int len)
-{
-	u8 T, *V;
-	u16 L;
-	u16 cmd_evt, cmd_len;
-	int pos = HCI_HEADER_SIZE;
-
-	cmd_evt = be16_to_cpup((const __be16 *)&buf[0]);
-	cmd_len = be16_to_cpup((const __be16 *)&buf[2]);
-
-	if (len < cmd_len + HCI_HEADER_SIZE) {
-		netdev_err(dev, "%s: invalid length [%d/%d]\n", __func__,
-			   cmd_len + HCI_HEADER_SIZE, len);
-		return -1;
-	}
-
-	if (cmd_evt == WIMAX_GET_INFO_RESULT) {
-		if (cmd_len < 2) {
-			netdev_err(dev, "%s: len is too short [%x/%d]\n",
-				   __func__, cmd_evt, len);
-			return -1;
-		}
-
-		pos += gdm_wimax_hci_get_tlv(&buf[pos], &T, &L, &V);
-		if (T == TLV_T(T_MAC_ADDRESS)) {
-			if (L != dev->addr_len) {
-				netdev_err(dev,
-					   "%s Invalid information result T/L [%x/%d]\n",
-					   __func__, T, L);
-				return -1;
-			}
-			netdev_info(dev, "MAC change [%pM]->[%pM]\n",
-				    dev->dev_addr, V);
-			memcpy(dev->dev_addr, V, dev->addr_len);
-			return 1;
-		}
-	}
-
-	gdm_wimax_event_send(dev, buf, len);
-	return 0;
-}
-
-static void gdm_wimax_netif_rx(struct net_device *dev, char *buf, int len)
-{
-	struct sk_buff *skb;
-	int ret;
-
-	skb = dev_alloc_skb(len + 2);
-	if (!skb)
-		return;
-	skb_reserve(skb, 2);
-
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += len;
-
-	memcpy(skb_put(skb, len), buf, len);
-
-	skb->dev = dev;
-	skb->protocol = eth_type_trans(skb, dev); /* what will happen? */
-
-	ret = in_interrupt() ? netif_rx(skb) : netif_rx_ni(skb);
-	if (ret == NET_RX_DROP)
-		netdev_err(dev, "%s skb dropped\n", __func__);
-}
-
-static void gdm_wimax_transmit_aggr_pkt(struct net_device *dev, char *buf,
-					int len)
-{
-	#define HCI_PADDING_BYTE	4
-	#define HCI_RESERVED_BYTE	4
-	struct hci_s *hci;
-	int length;
-
-	while (len > 0) {
-		hci = (struct hci_s *)buf;
-
-		if (hci->cmd_evt != cpu_to_be16(WIMAX_RX_SDU)) {
-			netdev_err(dev, "Wrong cmd_evt(0x%04X)\n",
-				   be16_to_cpu(hci->cmd_evt));
-			break;
-		}
-
-		length = be16_to_cpu(hci->length);
-		gdm_wimax_netif_rx(dev, hci->data, length);
-
-		if (length & 0x3) {
-			/* Add padding size */
-			length += HCI_PADDING_BYTE - (length & 0x3);
-		}
-
-		length += HCI_HEADER_SIZE + HCI_RESERVED_BYTE;
-		len -= length;
-		buf += length;
-	}
-}
-
-static void gdm_wimax_transmit_pkt(struct net_device *dev, char *buf, int len)
-{
-	#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-	struct nic *nic = netdev_priv(dev);
-	#endif
-	u16 cmd_evt, cmd_len;
-
-	/* This code is added for certain rx packet to be ignored. */
-	if (len == 0)
-		return;
-
-	cmd_evt = be16_to_cpup((const __be16 *)&buf[0]);
-	cmd_len = be16_to_cpup((const __be16 *)&buf[2]);
-
-	if (len < cmd_len + HCI_HEADER_SIZE) {
-		if (len)
-			netdev_err(dev, "%s: invalid length [%d/%d]\n",
-				   __func__, cmd_len + HCI_HEADER_SIZE, len);
-		return;
-	}
-
-	switch (cmd_evt) {
-	case WIMAX_RX_SDU_AGGR:
-		gdm_wimax_transmit_aggr_pkt(dev, &buf[HCI_HEADER_SIZE],
-					    cmd_len);
-		break;
-	case WIMAX_RX_SDU:
-		gdm_wimax_netif_rx(dev, &buf[HCI_HEADER_SIZE], cmd_len);
-		break;
-	#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-	case WIMAX_EVT_MODEM_REPORT:
-		gdm_recv_qos_hci_packet(nic, buf, len);
-		break;
-	#endif
-	case WIMAX_SDU_TX_FLOW:
-		if (buf[4] == 0) {
-			if (!netif_queue_stopped(dev))
-				netif_stop_queue(dev);
-		} else if (buf[4] == 1) {
-			if (netif_queue_stopped(dev))
-				netif_wake_queue(dev);
-		}
-		break;
-	default:
-		gdm_wimax_event_send(dev, buf, len);
-		break;
-	}
-}
-
-static void rx_complete(void *arg, void *data, int len)
-{
-	struct nic *nic = arg;
-
-	gdm_wimax_transmit_pkt(nic->netdev, data, len);
-	gdm_wimax_rcv_with_cb(nic, rx_complete, nic);
-}
-
-static void prepare_rx_complete(void *arg, void *data, int len)
-{
-	struct nic *nic = arg;
-	int ret;
-
-	ret = gdm_wimax_get_prepared_info(nic->netdev, data, len);
-	if (ret == 1) {
-		gdm_wimax_rcv_with_cb(nic, rx_complete, nic);
-	} else {
-		if (ret < 0)
-			netdev_err(nic->netdev,
-				   "get_prepared_info failed(%d)\n", ret);
-		gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic);
-	}
-}
-
-static void start_rx_proc(struct nic *nic)
-{
-	gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic);
-}
-
-static struct net_device_ops gdm_netdev_ops = {
-	.ndo_open		= gdm_wimax_open,
-	.ndo_stop		= gdm_wimax_close,
-	.ndo_set_config		= gdm_wimax_set_config,
-	.ndo_start_xmit		= gdm_wimax_tx,
-	.ndo_set_mac_address	= gdm_wimax_set_mac_addr,
-	.ndo_do_ioctl		= gdm_wimax_ioctl,
-};
-
-int register_wimax_device(struct phy_dev *phy_dev, struct device *pdev)
-{
-	struct nic *nic = NULL;
-	struct net_device *dev;
-	int ret;
-
-	dev = alloc_netdev(sizeof(*nic), "wm%d", NET_NAME_UNKNOWN,
-			   ether_setup);
-
-	if (!dev) {
-		pr_err("alloc_etherdev failed\n");
-		return -ENOMEM;
-	}
-
-	SET_NETDEV_DEV(dev, pdev);
-	dev->mtu = 1400;
-	dev->netdev_ops = &gdm_netdev_ops;
-	dev->flags &= ~IFF_MULTICAST;
-	memcpy(dev->dev_addr, gdm_wimax_macaddr, sizeof(gdm_wimax_macaddr));
-
-	nic = netdev_priv(dev);
-	nic->netdev = dev;
-	nic->phy_dev = phy_dev;
-	phy_dev->netdev = dev;
-
-	/* event socket init */
-	ret = gdm_wimax_event_init();
-	if (ret < 0) {
-		pr_err("Cannot create event.\n");
-		goto cleanup;
-	}
-
-	ret = register_netdev(dev);
-	if (ret)
-		goto cleanup;
-
-	netif_carrier_off(dev);
-
-#ifdef CONFIG_WIMAX_GDM72XX_QOS
-	gdm_qos_init(nic);
-#endif
-
-	start_rx_proc(nic);
-
-	/* Prepare WiMax device */
-	gdm_wimax_prepare_device(dev);
-
-	return 0;
-
-cleanup:
-	pr_err("register_netdev failed\n");
-	free_netdev(dev);
-	return ret;
-}
-
-void unregister_wimax_device(struct phy_dev *phy_dev)
-{
-	struct nic *nic = netdev_priv(phy_dev->netdev);
-	struct fsm_s *fsm = (struct fsm_s *)nic->sdk_data[SIOC_DATA_FSM].buf;
-
-	if (fsm)
-		fsm->m_status = M_INIT;
-	unregister_netdev(nic->netdev);
-
-	gdm_wimax_event_exit();
-
-#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-	gdm_qos_release_list(nic);
-#endif
-
-	gdm_wimax_cleanup_ioctl(phy_dev->netdev);
-
-	free_netdev(nic->netdev);
-}
diff --git a/drivers/staging/gdm72xx/gdm_wimax.h b/drivers/staging/gdm72xx/gdm_wimax.h
deleted file mode 100644
index 3330cd798c69..000000000000
--- a/drivers/staging/gdm72xx/gdm_wimax.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_GDM_WIMAX_H__
-#define __GDM72XX_GDM_WIMAX_H__
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include "wm_ioctl.h"
-#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-#include "gdm_qos.h"
-#endif
-
-#define DRIVER_VERSION		"3.2.3"
-
-struct phy_dev {
-	void			*priv_dev;
-	struct net_device	*netdev;
-	int (*send_func)(void *priv_dev, void *data, int len,
-			 void (*cb)(void *cb_data), void *cb_data);
-	int (*rcv_func)(void *priv_dev,
-			void (*cb)(void *cb_data, void *data, int len),
-			void *cb_data);
-};
-
-struct nic {
-	struct net_device	*netdev;
-	struct phy_dev		*phy_dev;
-	struct data_s		sdk_data[SIOC_DATA_MAX];
-#if defined(CONFIG_WIMAX_GDM72XX_QOS)
-	struct qos_cb_s		qos;
-#endif
-};
-
-int register_wimax_device(struct phy_dev *phy_dev, struct device *pdev);
-int gdm_wimax_send_tx(struct sk_buff *skb, struct net_device *dev);
-void unregister_wimax_device(struct phy_dev *phy_dev);
-
-#endif /* __GDM72XX_GDM_WIMAX_H__ */
diff --git a/drivers/staging/gdm72xx/hci.h b/drivers/staging/gdm72xx/hci.h
deleted file mode 100644
index 10a6bfa6e998..000000000000
--- a/drivers/staging/gdm72xx/hci.h
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_HCI_H__
-#define __GDM72XX_HCI_H__
-
-#define HCI_HEADER_SIZE		4
-#define HCI_VALUE_OFFS		(HCI_HEADER_SIZE)
-#define HCI_MAX_PACKET		2048
-#define HCI_MAX_PARAM		(HCI_MAX_PACKET-HCI_HEADER_SIZE)
-#define HCI_MAX_TLV		32
-
-/* CMD-EVT */
-
-/* Category 0 */
-#define WIMAX_RESET		0x0000
-#define WIMAX_SET_INFO		0x0001
-#define WIMAX_GET_INFO		0x0002
-#define WIMAX_GET_INFO_RESULT	0x8003
-#define WIMAX_RADIO_OFF		0x0004
-#define WIMAX_RADIO_ON		0x0006
-#define WIMAX_WIMAX_RESET	0x0007	/* Is this still here */
-
-/* Category 1 */
-#define WIMAX_NET_ENTRY			0x0100
-#define WIMAX_NET_DISCONN		0x0102
-#define WIMAX_ENTER_SLEEP		0x0103
-#define WIMAX_EXIT_SLEEP		0x0104
-#define WIMAX_ENTER_IDLE		0x0105
-#define WIMAX_EXIT_IDLE			0x0106
-#define WIMAX_MODE_CHANGE		0x8108
-#define WIMAX_HANDOVER			0x8109	/* obsolete */
-#define WIMAX_SCAN			0x010d
-#define WIMAX_SCAN_COMPLETE		0x810e
-#define WIMAX_SCAN_RESULT		0x810f
-#define WIMAX_CONNECT			0x0110
-#define WIMAX_CONNECT_START		0x8111
-#define WIMAX_CONNECT_COMPLETE		0x8112
-#define WIMAX_ASSOC_START		0x8113
-#define WIMAX_ASSOC_COMPLETE		0x8114
-#define WIMAX_DISCONN_IND		0x8115
-#define WIMAX_ENTRY_IND			0x8116
-#define WIMAX_HO_START			0x8117
-#define WIMAX_HO_COMPLETE		0x8118
-#define WIMAX_RADIO_STATE_IND		0x8119
-#define WIMAX_IP_RENEW_IND		0x811a
-#define WIMAX_DISCOVER_NSP		0x011d
-#define WIMAX_DISCOVER_NSP_RESULT	0x811e
-#define WIMAX_SDU_TX_FLOW		0x8125
-
-/* Category 2 */
-#define WIMAX_TX_EAP		0x0200
-#define WIMAX_RX_EAP		0x8201
-#define WIMAX_TX_SDU		0x0202
-#define WIMAX_RX_SDU		0x8203
-#define WIMAX_RX_SDU_AGGR	0x8204
-#define WIMAX_TX_SDU_AGGR	0x0205
-
-/* Category 3 */
-#define WIMAX_DM_CMD		0x030a
-#define WIMAX_DM_RSP		0x830b
-
-#define WIMAX_CLI_CMD		0x030c
-#define WIMAX_CLI_RSP		0x830d
-
-#define WIMAX_DL_IMAGE		0x0310
-#define WIMAX_DL_IMAGE_STATUS	0x8311
-#define WIMAX_UL_IMAGE		0x0312
-#define WIMAX_UL_IMAGE_RESULT	0x8313
-#define WIMAX_UL_IMAGE_STATUS	0x0314
-#define WIMAX_EVT_MODEM_REPORT	0x8325
-
-/* Category 0xF */
-#define WIMAX_FSM_UPDATE	0x8F01
-#define WIMAX_IF_UPDOWN		0x8F02
-#define WIMAX_IF_UP		1
-#define WIMAX_IF_DOWN		2
-
-/* WIMAX mode */
-#define W_NULL		0
-#define W_STANDBY	1
-#define W_OOZ		2
-#define W_AWAKE		3
-#define W_IDLE		4
-#define W_SLEEP		5
-#define W_WAIT		6
-
-#define W_NET_ENTRY_RNG		0x80
-#define W_NET_ENTRY_SBC		0x81
-#define W_NET_ENTRY_PKM		0x82
-#define W_NET_ENTRY_REG		0x83
-#define W_NET_ENTRY_DSX		0x84
-
-#define W_NET_ENTRY_RNG_FAIL	0x1100100
-#define W_NET_ENTRY_SBC_FAIL	0x1100200
-#define W_NET_ENTRY_PKM_FAIL	0x1102000
-#define W_NET_ENTRY_REG_FAIL	0x1103000
-#define W_NET_ENTRY_DSX_FAIL	0x1104000
-
-/* Scan Type */
-#define W_SCAN_ALL_CHANNEL		0
-#define W_SCAN_ALL_SUBSCRIPTION		1
-#define W_SCAN_SPECIFIED_SUBSCRIPTION	2
-
-/* TLV
- *
- * [31:31] indicates the type is composite.
- * [30:16] is the length of the type. 0 length means length is variable.
- * [15:0] is the actual type.
- */
-#define TLV_L(x)		(((x) >> 16) & 0xff)
-#define TLV_T(x)		((x) & 0xff)
-#define TLV_COMPOSITE(x)	((x) >> 31)
-
-/* GENERAL */
-#define T_MAC_ADDRESS			(0x00	| (6 << 16))
-#define T_BSID				(0x01	| (6 << 16))
-#define T_MSK				(0x02	| (64 << 16))
-#define T_RSSI_THRSHLD			(0x03	| (1 << 16))
-#define T_FREQUENCY			(0x04	| (4 << 16))
-#define T_CONN_CS_TYPE			(0x05	| (1 << 16))
-#define T_HOST_IP_VER			(0x06	| (1 << 16))
-#define T_STBY_SCAN_INTERVAL		(0x07	| (4  << 16))
-#define T_OOZ_SCAN_INTERVAL		(0x08	| (4 << 16))
-#define T_IMEI				(0x09	| (8 << 16))
-#define T_PID				(0x0a	| (12 << 16))
-#define T_CAPABILITY			(0x1a	| (4 << 16))
-#define T_RELEASE_NUMBER		(0x1b	| (4 << 16))
-#define T_DRIVER_REVISION		(0x1c	| (4 << 16))
-#define T_FW_REVISION			(0x1d	| (4 << 16))
-#define T_MAC_HW_REVISION		(0x1e	| (4 << 16))
-#define T_PHY_HW_REVISION		(0x1f	| (4 << 16))
-
-/* HANDOVER */
-#define T_SCAN_INTERVAL			(0x20	| (1 << 16))
-#define T_RSC_RETAIN_TIME		(0x2f	| (2 << 16))
-
-/* SLEEP */
-#define T_TYPE1_ISW			(0x40	| (1 << 16))
-#define T_SLP_START_TO			(0x4a	| (2 << 16))
-
-/* IDLE */
-#define T_IDLE_MODE_TO			(0x50	| (2 << 16))
-#define T_IDLE_START_TO			(0x54	| (2 << 16))
-
-/* MONITOR */
-#define T_RSSI				(0x60	| (1 << 16))
-#define T_CINR				(0x61	| (1 << 16))
-#define T_TX_POWER			(0x6a   | (1 << 16))
-#define T_CUR_FREQ			(0x7f	| (4 << 16))
-
-
-/* WIMAX */
-#define T_MAX_SUBSCRIPTION		(0xa1	| (1 << 16))
-#define T_MAX_SF			(0xa2	| (1 << 16))
-#define T_PHY_TYPE			(0xa3	| (1 << 16))
-#define T_PKM				(0xa4	| (1 << 16))
-#define T_AUTH_POLICY			(0xa5	| (1 << 16))
-#define T_CS_TYPE			(0xa6	| (2 << 16))
-#define T_VENDOR_NAME			(0xa7	| (0 << 16))
-#define T_MOD_NAME			(0xa8	| (0 << 16))
-#define T_PACKET_FILTER			(0xa9	| (1 << 16))
-#define T_NSP_CHANGE_COUNT		(0xaa	| (4 << 16))
-#define T_RADIO_STATE			(0xab	| (1 << 16))
-#define T_URI_CONTACT_TYPE		(0xac	| (1 << 16))
-#define T_URI_TEXT			(0xad	| (0 << 16))
-#define T_URI				(0xae	| (0 << 16))
-#define T_ENABLE_AUTH			(0xaf	| (1 << 16))
-#define T_TIMEOUT			(0xb0   | (2 << 16))
-#define T_RUN_MODE			(0xb1	| (1 << 16))
-#define T_OMADMT_VER			(0xb2	| (4 << 16))
-/* This is measured in seconds from 00:00:00 GMT January 1, 1970. */
-#define T_RTC_TIME			(0xb3	| (4 << 16))
-#define T_CERT_STATUS			(0xb4	| (4 << 16))
-#define T_CERT_MASK			(0xb5	| (4 << 16))
-#define T_EMSK				(0xb6	| (64 << 16))
-
-/* Subscription TLV */
-#define T_SUBSCRIPTION_LIST		(0xd1	| (0 << 16) | (1 << 31))
-#define T_H_NSPID			(0xd2	| (3 << 16))
-#define T_NSP_NAME			(0xd3	| (0 << 16))
-#define T_SUBSCRIPTION_NAME		(0xd4	| (0 << 16))
-#define T_SUBSCRIPTION_FLAG		(0xd5	| (2 << 16))
-#define T_V_NSPID			(0xd6	| (3 << 16))
-#define T_NAP_ID			(0xd7	| (3 << 16))
-#define T_PREAMBLES			(0xd8	| (15 << 16))
-#define T_BW				(0xd9	| (4 << 16))
-#define T_FFTSIZE			(0xda	| (4 << 16))
-#define T_DUPLEX_MODE			(0xdb	| (4 << 16))
-
-/* T_CAPABILITY */
-#define T_CAPABILITY_MULTI_CS		(1 << 0)
-#define T_CAPABILITY_WIMAX		(1 << 1)
-#define T_CAPABILITY_QOS		(1 << 2)
-#define T_CAPABILITY_AGGREGATION	(1 << 3)
-
-struct hci_s {
-	__be16	cmd_evt;
-	__be16	length;
-	u8	data[0];
-} __packed;
-
-#endif /* __GDM72XX_HCI_H__ */
diff --git a/drivers/staging/gdm72xx/netlink_k.c b/drivers/staging/gdm72xx/netlink_k.c
deleted file mode 100644
index f3cdaa6c468c..000000000000
--- a/drivers/staging/gdm72xx/netlink_k.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/etherdevice.h>
-#include <net/netlink.h>
-#include <asm/byteorder.h>
-#include <net/sock.h>
-#include "netlink_k.h"
-
-#if !defined(NLMSG_HDRLEN)
-#define NLMSG_HDRLEN	 ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
-#endif
-
-#define ND_MAX_GROUP			30
-#define ND_IFINDEX_LEN			sizeof(int)
-#define ND_NLMSG_SPACE(len)		(nlmsg_total_size(len) + ND_IFINDEX_LEN)
-#define ND_NLMSG_DATA(nlh) \
-	((void *)((char *)nlmsg_data(nlh) + ND_IFINDEX_LEN))
-#define ND_NLMSG_S_LEN(len)		(len+ND_IFINDEX_LEN)
-#define ND_NLMSG_R_LEN(nlh)		(nlh->nlmsg_len-ND_IFINDEX_LEN)
-#define ND_NLMSG_IFIDX(nlh)		nlmsg_data(nlh)
-#define ND_MAX_MSG_LEN			8096
-
-#if defined(DEFINE_MUTEX)
-static DEFINE_MUTEX(netlink_mutex);
-#else
-static struct semaphore netlink_mutex;
-#define mutex_lock(x)		down(x)
-#define mutex_unlock(x)		up(x)
-#endif
-
-static void (*rcv_cb)(struct net_device *dev, u16 type, void *msg, int len);
-
-static void netlink_rcv_cb(struct sk_buff *skb)
-{
-	struct nlmsghdr *nlh;
-	struct net_device *dev;
-	u32 mlen;
-	void *msg;
-	int ifindex;
-
-	if (skb->len >= NLMSG_HDRLEN) {
-		nlh = (struct nlmsghdr *)skb->data;
-
-		if (skb->len < nlh->nlmsg_len ||
-		    nlh->nlmsg_len > ND_MAX_MSG_LEN) {
-			netdev_err(skb->dev, "Invalid length (%d,%d)\n",
-				   skb->len, nlh->nlmsg_len);
-			return;
-		}
-
-		memcpy(&ifindex, ND_NLMSG_IFIDX(nlh), ND_IFINDEX_LEN);
-		msg = ND_NLMSG_DATA(nlh);
-		mlen = ND_NLMSG_R_LEN(nlh);
-
-		if (rcv_cb) {
-			dev = dev_get_by_index(&init_net, ifindex);
-			if (dev) {
-				rcv_cb(dev, nlh->nlmsg_type, msg, mlen);
-				dev_put(dev);
-			} else
-				netdev_err(skb->dev,
-					   "dev_get_by_index(%d) is not found.\n",
-					   ifindex);
-		} else {
-			netdev_err(skb->dev, "Unregistered Callback\n");
-		}
-	}
-}
-
-static void netlink_rcv(struct sk_buff *skb)
-{
-	mutex_lock(&netlink_mutex);
-	netlink_rcv_cb(skb);
-	mutex_unlock(&netlink_mutex);
-}
-
-struct sock *netlink_init(int unit, void (*cb)(struct net_device *dev, u16 type,
-					       void *msg, int len))
-{
-	struct sock *sock;
-	struct netlink_kernel_cfg cfg = {
-		.input  = netlink_rcv,
-	};
-
-#if !defined(DEFINE_MUTEX)
-	init_MUTEX(&netlink_mutex);
-#endif
-
-	sock = netlink_kernel_create(&init_net, unit, &cfg);
-
-	if (sock)
-		rcv_cb = cb;
-
-	return sock;
-}
-
-void netlink_exit(struct sock *sock)
-{
-	netlink_kernel_release(sock);
-}
-
-int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)
-{
-	static u32 seq;
-	struct sk_buff *skb = NULL;
-	struct nlmsghdr *nlh;
-	int ret = 0;
-
-	if (group > ND_MAX_GROUP) {
-		pr_err("Group %d is invalid.\n", group);
-		pr_err("Valid group is 0 ~ %d.\n", ND_MAX_GROUP);
-		return -EINVAL;
-	}
-
-	skb = nlmsg_new(len, GFP_ATOMIC);
-	if (!skb) {
-		pr_err("netlink_broadcast ret=%d\n", ret);
-		return -ENOMEM;
-	}
-
-	seq++;
-	nlh = nlmsg_put(skb, 0, seq, type, len, 0);
-	if (!nlh) {
-		kfree_skb(skb);
-		return -EMSGSIZE;
-	}
-	memcpy(nlmsg_data(nlh), msg, len);
-
-	NETLINK_CB(skb).portid = 0;
-	NETLINK_CB(skb).dst_group = 0;
-
-	ret = netlink_broadcast(sock, skb, 0, group+1, GFP_ATOMIC);
-
-	if (!ret)
-		return len;
-	if (ret != -ESRCH) {
-		pr_err("netlink_broadcast g=%d, t=%d, l=%d, r=%d\n",
-		       group, type, len, ret);
-	}
-	ret = 0;
-	return ret;
-}
diff --git a/drivers/staging/gdm72xx/netlink_k.h b/drivers/staging/gdm72xx/netlink_k.h
deleted file mode 100644
index 1fe7198d539e..000000000000
--- a/drivers/staging/gdm72xx/netlink_k.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_NETLINK_K_H__
-#define __GDM72XX_NETLINK_K_H__
-
-#include <linux/netdevice.h>
-#include <net/sock.h>
-
-struct sock *netlink_init(int unit, void (*cb)(struct net_device *dev, u16 type,
-					       void *msg, int len));
-void netlink_exit(struct sock *sock);
-int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len);
-
-#endif /* __GDM72XX_NETLINK_K_H__ */
diff --git a/drivers/staging/gdm72xx/sdio_boot.c b/drivers/staging/gdm72xx/sdio_boot.c
deleted file mode 100644
index 2c02842ac5da..000000000000
--- a/drivers/staging/gdm72xx/sdio_boot.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/uaccess.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-
-#include <linux/mmc/core.h>
-#include <linux/mmc/card.h>
-#include <linux/mmc/sdio_func.h>
-
-#include <linux/firmware.h>
-
-#include "gdm_sdio.h"
-#include "sdio_boot.h"
-
-#define TYPE_A_HEADER_SIZE	4
-#define TYPE_A_LOOKAHEAD_SIZE   16
-#define YMEM0_SIZE		0x8000	/* 32kbytes */
-#define DOWNLOAD_SIZE		(YMEM0_SIZE - TYPE_A_HEADER_SIZE)
-
-#define FW_DIR			"gdm72xx/"
-#define FW_KRN			"gdmskrn.bin"
-#define FW_RFS			"gdmsrfs.bin"
-
-static u8 *tx_buf;
-
-static int ack_ready(struct sdio_func *func)
-{
-	unsigned long wait = jiffies + HZ;
-	u8 val;
-	int ret;
-
-	while (time_before(jiffies, wait)) {
-		val = sdio_readb(func, 0x13, &ret);
-		if (val & 0x01)
-			return 1;
-		schedule();
-	}
-
-	return 0;
-}
-
-static int download_image(struct sdio_func *func, const char *img_name)
-{
-	int ret = 0, len, pno;
-	u8 *buf = tx_buf;
-	loff_t pos = 0;
-	int img_len;
-	const struct firmware *firm;
-
-	ret = request_firmware(&firm, img_name, &func->dev);
-	if (ret < 0) {
-		dev_err(&func->dev,
-			"requesting firmware %s failed with error %d\n",
-			img_name, ret);
-		return ret;
-	}
-
-	buf = kmalloc(DOWNLOAD_SIZE + TYPE_A_HEADER_SIZE, GFP_KERNEL);
-	if (buf == NULL)
-		return -ENOMEM;
-
-	img_len = firm->size;
-
-	if (img_len <= 0) {
-		ret = -1;
-		goto out;
-	}
-
-	pno = 0;
-	while (img_len > 0) {
-		if (img_len > DOWNLOAD_SIZE) {
-			len = DOWNLOAD_SIZE;
-			buf[3] = 0;
-		} else {
-			len = img_len; /* the last packet */
-			buf[3] = 2;
-		}
-
-		buf[0] = len & 0xff;
-		buf[1] = (len >> 8) & 0xff;
-		buf[2] = (len >> 16) & 0xff;
-
-		memcpy(buf+TYPE_A_HEADER_SIZE, firm->data + pos, len);
-		ret = sdio_memcpy_toio(func, 0, buf, len + TYPE_A_HEADER_SIZE);
-		if (ret < 0) {
-			dev_err(&func->dev,
-				"send image error: packet number = %d ret = %d\n",
-				pno, ret);
-			goto out;
-		}
-
-		if (buf[3] == 2)	/* The last packet */
-			break;
-		if (!ack_ready(func)) {
-			ret = -EIO;
-			dev_err(&func->dev, "Ack is not ready.\n");
-			goto out;
-		}
-		ret = sdio_memcpy_fromio(func, buf, 0, TYPE_A_LOOKAHEAD_SIZE);
-		if (ret < 0) {
-			dev_err(&func->dev,
-				"receive ack error: packet number = %d ret = %d\n",
-				pno, ret);
-			goto out;
-		}
-		sdio_writeb(func, 0x01, 0x13, &ret);
-		sdio_writeb(func, 0x00, 0x10, &ret);	/* PCRRT */
-
-		img_len -= DOWNLOAD_SIZE;
-		pos += DOWNLOAD_SIZE;
-		pno++;
-	}
-
-out:
-	kfree(buf);
-	return ret;
-}
-
-int sdio_boot(struct sdio_func *func)
-{
-	int ret;
-	const char *krn_name = FW_DIR FW_KRN;
-	const char *rfs_name = FW_DIR FW_RFS;
-
-	tx_buf = kmalloc(YMEM0_SIZE, GFP_KERNEL);
-	if (tx_buf == NULL)
-		return -ENOMEM;
-
-	ret = download_image(func, krn_name);
-	if (ret)
-		goto restore_fs;
-	dev_info(&func->dev, "GCT: Kernel download success.\n");
-
-	ret = download_image(func, rfs_name);
-	if (ret)
-		goto restore_fs;
-	dev_info(&func->dev, "GCT: Filesystem download success.\n");
-
-restore_fs:
-	kfree(tx_buf);
-	return ret;
-}
diff --git a/drivers/staging/gdm72xx/sdio_boot.h b/drivers/staging/gdm72xx/sdio_boot.h
deleted file mode 100644
index e0800c6fe2fd..000000000000
--- a/drivers/staging/gdm72xx/sdio_boot.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_SDIO_BOOT_H__
-#define __GDM72XX_SDIO_BOOT_H__
-
-struct sdio_func;
-
-int sdio_boot(struct sdio_func *func);
-
-#endif /* __GDM72XX_SDIO_BOOT_H__ */
diff --git a/drivers/staging/gdm72xx/usb_boot.c b/drivers/staging/gdm72xx/usb_boot.c
deleted file mode 100644
index 3ccc447730e8..000000000000
--- a/drivers/staging/gdm72xx/usb_boot.c
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/uaccess.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/usb.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/firmware.h>
-
-#include <asm/byteorder.h>
-#include "gdm_usb.h"
-#include "usb_boot.h"
-
-#define DN_KERNEL_MAGIC_NUMBER	0x10760001
-#define DN_ROOTFS_MAGIC_NUMBER	0x10760002
-
-#define DOWNLOAD_SIZE		1024
-
-#define MAX_IMG_CNT		16
-#define FW_DIR			"gdm72xx/"
-#define FW_UIMG			"gdmuimg.bin"
-#define FW_KERN			"zImage"
-#define FW_FS			"ramdisk.jffs2"
-
-struct dn_header {
-	__be32	magic_num;
-	__be32	file_size;
-};
-
-struct img_header {
-	u32	magic_code;
-	u32	count;
-	u32	len;
-	u32	offset[MAX_IMG_CNT];
-	char	hostname[32];
-	char	date[32];
-};
-
-struct fw_info {
-	u32	id;
-	u32	len;
-	u32	kernel_len;
-	u32	rootfs_len;
-	u32	kernel_offset;
-	u32	rootfs_offset;
-	u32	fw_ver;
-	u32	mac_ver;
-	char	hostname[32];
-	char	userid[16];
-	char	date[32];
-	char	user_desc[128];
-};
-
-static void array_le32_to_cpu(u32 *arr, int num)
-{
-	int i;
-
-	for (i = 0; i < num; i++, arr++)
-		le32_to_cpus(arr);
-}
-
-static u8 *tx_buf;
-
-static int gdm_wibro_send(struct usb_device *usbdev, void *data, int len)
-{
-	int ret;
-	int actual;
-
-	ret = usb_bulk_msg(usbdev, usb_sndbulkpipe(usbdev, 1), data, len,
-			   &actual, 1000);
-
-	if (ret < 0) {
-		dev_err(&usbdev->dev, "Error : usb_bulk_msg ( result = %d )\n",
-			ret);
-		return ret;
-	}
-	return 0;
-}
-
-static int gdm_wibro_recv(struct usb_device *usbdev, void *data, int len)
-{
-	int ret;
-	int actual;
-
-	ret = usb_bulk_msg(usbdev, usb_rcvbulkpipe(usbdev, 2), data, len,
-			   &actual, 5000);
-
-	if (ret < 0) {
-		dev_err(&usbdev->dev,
-			"Error : usb_bulk_msg(recv) ( result = %d )\n", ret);
-		return ret;
-	}
-	return 0;
-}
-
-static int download_image(struct usb_device *usbdev,
-			  const struct firmware *firm,
-			  loff_t pos, u32 img_len, u32 magic_num)
-{
-	struct dn_header h;
-	int ret = 0;
-	u32 size;
-
-	size = ALIGN(img_len, DOWNLOAD_SIZE);
-	h.magic_num = cpu_to_be32(magic_num);
-	h.file_size = cpu_to_be32(size);
-
-	ret = gdm_wibro_send(usbdev, &h, sizeof(h));
-	if (ret < 0)
-		return ret;
-
-	while (img_len > 0) {
-		if (img_len > DOWNLOAD_SIZE)
-			size = DOWNLOAD_SIZE;
-		else
-			size = img_len;	/* the last chunk of data */
-
-		memcpy(tx_buf, firm->data + pos, size);
-		ret = gdm_wibro_send(usbdev, tx_buf, size);
-
-		if (ret < 0)
-			return ret;
-
-		img_len -= size;
-		pos += size;
-	}
-
-	return ret;
-}
-
-int usb_boot(struct usb_device *usbdev, u16 pid)
-{
-	int i, ret = 0;
-	struct img_header hdr;
-	struct fw_info fw_info;
-	loff_t pos = 0;
-	char *img_name = FW_DIR FW_UIMG;
-	const struct firmware *firm;
-
-	ret = request_firmware(&firm, img_name, &usbdev->dev);
-	if (ret < 0) {
-		dev_err(&usbdev->dev,
-			"requesting firmware %s failed with error %d\n",
-			img_name, ret);
-		return ret;
-	}
-
-	tx_buf = kmalloc(DOWNLOAD_SIZE, GFP_KERNEL);
-	if (tx_buf == NULL)
-		return -ENOMEM;
-
-	if (firm->size < sizeof(hdr)) {
-		dev_err(&usbdev->dev, "Cannot read the image info.\n");
-		ret = -EIO;
-		goto out;
-	}
-	memcpy(&hdr, firm->data, sizeof(hdr));
-
-	array_le32_to_cpu((u32 *)&hdr, 19);
-
-	if (hdr.count > MAX_IMG_CNT) {
-		dev_err(&usbdev->dev, "Too many images. %d\n", hdr.count);
-		ret = -EINVAL;
-		goto out;
-	}
-
-	for (i = 0; i < hdr.count; i++) {
-		if (hdr.offset[i] > hdr.len) {
-			dev_err(&usbdev->dev,
-				"Invalid offset. Entry = %d Offset = 0x%08x Image length = 0x%08x\n",
-				i, hdr.offset[i], hdr.len);
-			ret = -EINVAL;
-			goto out;
-		}
-
-		pos = hdr.offset[i];
-		if (firm->size < sizeof(fw_info) + pos) {
-			dev_err(&usbdev->dev, "Cannot read the FW info.\n");
-			ret = -EIO;
-			goto out;
-		}
-		memcpy(&fw_info, firm->data + pos, sizeof(fw_info));
-
-		array_le32_to_cpu((u32 *)&fw_info, 8);
-
-		if ((fw_info.id & 0xffff) != pid)
-			continue;
-
-		pos = hdr.offset[i] + fw_info.kernel_offset;
-		if (firm->size < fw_info.kernel_len + pos) {
-			dev_err(&usbdev->dev, "Kernel FW is too small.\n");
-			goto out;
-		}
-
-		ret = download_image(usbdev, firm, pos, fw_info.kernel_len,
-				     DN_KERNEL_MAGIC_NUMBER);
-		if (ret < 0)
-			goto out;
-		dev_info(&usbdev->dev, "GCT: Kernel download success.\n");
-
-		pos = hdr.offset[i] + fw_info.rootfs_offset;
-		if (firm->size < fw_info.rootfs_len + pos) {
-			dev_err(&usbdev->dev, "Filesystem FW is too small.\n");
-			goto out;
-		}
-		ret = download_image(usbdev, firm, pos, fw_info.rootfs_len,
-				     DN_ROOTFS_MAGIC_NUMBER);
-		if (ret < 0)
-			goto out;
-		dev_info(&usbdev->dev, "GCT: Filesystem download success.\n");
-
-		break;
-	}
-
-	if (i == hdr.count) {
-		dev_err(&usbdev->dev, "Firmware for gsk%x is not installed.\n",
-			pid);
-		ret = -EINVAL;
-	}
-out:
-	release_firmware(firm);
-	kfree(tx_buf);
-	return ret;
-}
-
-/*#define GDM7205_PADDING		256 */
-#define DOWNLOAD_CHUCK			2048
-#define KERNEL_TYPE_STRING		"linux"
-#define FS_TYPE_STRING			"rootfs"
-
-static int em_wait_ack(struct usb_device *usbdev, int send_zlp)
-{
-	int ack;
-	int ret = -1;
-
-	if (send_zlp) {
-		/*Send ZLP*/
-		ret = gdm_wibro_send(usbdev, NULL, 0);
-		if (ret < 0)
-			goto out;
-	}
-
-	/*Wait for ACK*/
-	ret = gdm_wibro_recv(usbdev, &ack, sizeof(ack));
-	if (ret < 0)
-		goto out;
-out:
-	return ret;
-}
-
-static int em_download_image(struct usb_device *usbdev, const char *img_name,
-			     char *type_string)
-{
-	char *buf = NULL;
-	loff_t pos = 0;
-	int ret = 0;
-	int len;
-	int img_len;
-	const struct firmware *firm;
-	#if defined(GDM7205_PADDING)
-	const int pad_size = GDM7205_PADDING;
-	#else
-	const int pad_size = 0;
-	#endif
-
-	ret = request_firmware(&firm, img_name, &usbdev->dev);
-	if (ret < 0) {
-		dev_err(&usbdev->dev,
-			"requesting firmware %s failed with error %d\n",
-			img_name, ret);
-		return ret;
-	}
-
-	buf = kmalloc(DOWNLOAD_CHUCK + pad_size, GFP_KERNEL);
-	if (buf == NULL)
-		return -ENOMEM;
-
-	strcpy(buf+pad_size, type_string);
-	ret = gdm_wibro_send(usbdev, buf, strlen(type_string)+pad_size);
-	if (ret < 0)
-		goto out;
-
-	img_len = firm->size;
-
-	if (img_len <= 0) {
-		ret = -1;
-		goto out;
-	}
-
-	while (img_len > 0) {
-		if (img_len > DOWNLOAD_CHUCK)
-			len = DOWNLOAD_CHUCK;
-		else
-			len = img_len; /* the last chunk of data */
-
-		memcpy(buf+pad_size, firm->data + pos, len);
-		ret = gdm_wibro_send(usbdev, buf, len+pad_size);
-
-		if (ret < 0)
-			goto out;
-
-		img_len -= DOWNLOAD_CHUCK;
-		pos += DOWNLOAD_CHUCK;
-
-		ret = em_wait_ack(usbdev, ((len+pad_size) % 512 == 0));
-		if (ret < 0)
-			goto out;
-	}
-
-	ret = em_wait_ack(usbdev, 1);
-	if (ret < 0)
-		goto out;
-
-out:
-	release_firmware(firm);
-	kfree(buf);
-
-	return ret;
-}
-
-static int em_fw_reset(struct usb_device *usbdev)
-{
-	/*Send ZLP*/
-	return gdm_wibro_send(usbdev, NULL, 0);
-}
-
-int usb_emergency(struct usb_device *usbdev)
-{
-	int ret;
-	const char *kern_name = FW_DIR FW_KERN;
-	const char *fs_name = FW_DIR FW_FS;
-
-	ret = em_download_image(usbdev, kern_name, KERNEL_TYPE_STRING);
-	if (ret < 0)
-		return ret;
-	dev_err(&usbdev->dev, "GCT Emergency: Kernel download success.\n");
-
-	ret = em_download_image(usbdev, fs_name, FS_TYPE_STRING);
-	if (ret < 0)
-		return ret;
-	dev_info(&usbdev->dev, "GCT Emergency: Filesystem download success.\n");
-
-	ret = em_fw_reset(usbdev);
-
-	return ret;
-}
diff --git a/drivers/staging/gdm72xx/usb_boot.h b/drivers/staging/gdm72xx/usb_boot.h
deleted file mode 100644
index 5bf7190377e2..000000000000
--- a/drivers/staging/gdm72xx/usb_boot.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_USB_BOOT_H__
-#define __GDM72XX_USB_BOOT_H__
-
-struct usb_device;
-
-int usb_boot(struct usb_device *usbdev, u16 pid);
-int usb_emergency(struct usb_device *usbdev);
-
-#endif /* __GDM72XX_USB_BOOT_H__ */
diff --git a/drivers/staging/gdm72xx/usb_ids.h b/drivers/staging/gdm72xx/usb_ids.h
deleted file mode 100644
index 7afb9ba5fdba..000000000000
--- a/drivers/staging/gdm72xx/usb_ids.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_USB_IDS_H__
-#define __GDM72XX_USB_IDS_H__
-
-/*You can replace vendor-ID as yours.*/
-#define GCT_VID			0x1076
-
-/*You can replace product-ID as yours.*/
-#define GCT_PID1			0x7e00
-#define GCT_PID2			0x7f00
-
-#define USB_DEVICE_ID_MATCH_DEVICE_INTERFACE	\
-	(USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_CLASS)
-
-#define USB_DEVICE_INTF(vend, prod, intf)	\
-	.match_flags = USB_DEVICE_ID_MATCH_DEVICE_INTERFACE,	\
-	.idVendor = (vend), .idProduct = (prod), .bInterfaceClass = (intf)
-
-#define EMERGENCY_PID		0x720f
-#define BL_PID_MASK		0xffc0
-
-#define USB_DEVICE_BOOTLOADER(vid, pid)	\
-	{USB_DEVICE((vid), ((pid)&BL_PID_MASK)|B_DOWNLOAD)}
-
-#define USB_DEVICE_BOOTLOADER_DRV(vid, pid)	\
-	{USB_DEVICE((vid), ((pid)&BL_PID_MASK)|B_DOWNLOAD|B_DIFF_DL_DRV)}
-
-#define USB_DEVICE_CDC_DATA(vid, pid)	\
-	{USB_DEVICE_INTF((vid), (pid), USB_CLASS_CDC_DATA)}
-
-static const struct usb_device_id id_table[] = {
-	USB_DEVICE_BOOTLOADER(GCT_VID, GCT_PID1),
-	USB_DEVICE_BOOTLOADER_DRV(GCT_VID, GCT_PID1),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x1),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x2),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x3),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x4),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x5),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x6),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x7),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x8),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x9),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xa),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xb),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xc),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xd),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xe),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xf),
-
-	USB_DEVICE_BOOTLOADER(GCT_VID, GCT_PID2),
-	USB_DEVICE_BOOTLOADER_DRV(GCT_VID, GCT_PID2),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x1),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x2),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x3),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x4),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x5),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x6),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x7),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x8),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x9),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xa),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xb),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xc),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xd),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xe),
-	USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xf),
-
-	{USB_DEVICE(GCT_VID, EMERGENCY_PID)},
-	{ }
-};
-
-#endif /* __GDM72XX_USB_IDS_H__ */
diff --git a/drivers/staging/gdm72xx/wm_ioctl.h b/drivers/staging/gdm72xx/wm_ioctl.h
deleted file mode 100644
index ed8f649c0042..000000000000
--- a/drivers/staging/gdm72xx/wm_ioctl.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __GDM72XX_WM_IOCTL_H__
-#define __GDM72XX_WM_IOCTL_H__
-
-#if !defined(__KERNEL__)
-#include <net/if.h>
-#endif
-
-#define NETLINK_WIMAX	31
-
-#define SIOCWMIOCTL	SIOCDEVPRIVATE
-
-#define SIOCG_DATA	0x8D10
-#define SIOCS_DATA	0x8D11
-
-enum {
-	SIOC_DATA_FSM,
-	SIOC_DATA_NETLIST,
-	SIOC_DATA_CONNNSP,
-	SIOC_DATA_CONNCOMP,
-	SIOC_DATA_PROFILEID,
-
-	SIOC_DATA_END
-};
-
-#define SIOC_DATA_MAX	16
-
-/* FSM */
-enum {
-	M_INIT = 0,
-	M_OPEN_OFF,
-	M_OPEN_ON,
-	M_SCAN,
-	M_CONNECTING,
-	M_CONNECTED,
-	M_FSM_END,
-
-	C_INIT = 0,
-	C_CONNSTART,
-	C_ASSOCSTART,
-	C_RNG,
-	C_SBC,
-	C_AUTH,
-	C_REG,
-	C_DSX,
-	C_ASSOCCOMPLETE,
-	C_CONNCOMPLETE,
-	C_FSM_END,
-
-	D_INIT = 0,
-	D_READY,
-	D_LISTEN,
-	D_IPACQUISITION,
-
-	END_FSM
-};
-
-struct fsm_s {
-	int	m_status;	/*main status*/
-	int	c_status;	/*connection status*/
-	int	d_status;	/*oma-dm status*/
-};
-
-struct data_s {
-	int	size;
-	void	*buf;
-};
-
-struct wm_req_s {
-	union {
-		char ifrn_name[IFNAMSIZ];
-	} ifr_ifrn;
-	unsigned short	cmd;
-	unsigned short	data_id;
-	struct data_s	data;
-
-/* NOTE: sizeof(struct wm_req_s) must be less than sizeof(struct ifreq). */
-};
-
-#ifndef ifr_name
-#define ifr_name ifr_ifrn.ifrn_name
-#endif
-
-#endif /* __GDM72XX_WM_IOCTL_H__ */
diff --git a/drivers/staging/goldfish/Kconfig b/drivers/staging/goldfish/Kconfig
deleted file mode 100644
index 4e094602437c..000000000000
--- a/drivers/staging/goldfish/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-config GOLDFISH_AUDIO
-	tristate "Goldfish AVD Audio Device"
-	depends on GOLDFISH
-	---help---
-	  Emulated audio channel for the Goldfish Android Virtual Device
-
-config MTD_GOLDFISH_NAND
-	tristate "Goldfish NAND device"
-	depends on GOLDFISH
-	depends on MTD
-	help
-	  Drives the emulated NAND flash device on the Google Goldfish
-	  Android virtual device.
diff --git a/drivers/staging/goldfish/Makefile b/drivers/staging/goldfish/Makefile
deleted file mode 100644
index dec34ad58162..000000000000
--- a/drivers/staging/goldfish/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-#
-# Makefile for the Goldfish audio driver
-#
-
-obj-$(CONFIG_GOLDFISH_AUDIO) += goldfish_audio.o
-obj-$(CONFIG_MTD_GOLDFISH_NAND)	+= goldfish_nand.o
diff --git a/drivers/staging/goldfish/README b/drivers/staging/goldfish/README
deleted file mode 100644
index 183af0053234..000000000000
--- a/drivers/staging/goldfish/README
+++ /dev/null
@@ -1,11 +0,0 @@
-Audio
------
-- Move to using the ALSA framework not faking it
-- Fix the wrong user page DMA (moving to ALSA may fix that too)
-
-NAND
-----
-- Remove excess checking of parameters in calls
-- Use dma coherent memory not kmalloc/__pa for the memory (this is just
-  a cleanliness issue not a correctness one)
-
diff --git a/drivers/staging/goldfish/goldfish_audio.c b/drivers/staging/goldfish/goldfish_audio.c
deleted file mode 100644
index b0927e49d0a8..000000000000
--- a/drivers/staging/goldfish/goldfish_audio.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/*
- * drivers/misc/goldfish_audio.c
- *
- * Copyright (C) 2007 Google, Inc.
- * Copyright (C) 2012 Intel, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/miscdevice.h>
-#include <linux/fs.h>
-#include <linux/platform_device.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/sched.h>
-#include <linux/dma-mapping.h>
-#include <linux/uaccess.h>
-#include <linux/goldfish.h>
-
-MODULE_AUTHOR("Google, Inc.");
-MODULE_DESCRIPTION("Android QEMU Audio Driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("1.0");
-
-struct goldfish_audio {
-	char __iomem *reg_base;
-	int irq;
-	/* lock protects access to buffer_status and to device registers */
-	spinlock_t lock;
-	wait_queue_head_t wait;
-
-	char *buffer_virt;		/* combined buffer virtual address */
-	unsigned long buffer_phys;      /* combined buffer physical address */
-
-	char *write_buffer1;		/* write buffer 1 virtual address */
-	char *write_buffer2;		/* write buffer 2 virtual address */
-	char *read_buffer;		/* read buffer virtual address */
-	int buffer_status;
-	int read_supported;         /* true if we have audio input support */
-};
-
-/*
- *  We will allocate two read buffers and two write buffers.
- *  Having two read buffers facilitate stereo -> mono conversion.
- *  Having two write buffers facilitate interleaved IO.
- */
-#define READ_BUFFER_SIZE        16384
-#define WRITE_BUFFER_SIZE       16384
-#define COMBINED_BUFFER_SIZE    ((2 * READ_BUFFER_SIZE) + \
-					(2 * WRITE_BUFFER_SIZE))
-
-#define AUDIO_READ(data, addr)		(readl(data->reg_base + addr))
-#define AUDIO_WRITE(data, addr, x)	(writel(x, data->reg_base + addr))
-#define AUDIO_WRITE64(data, addr, addr2, x)	\
-	(gf_write_dma_addr((x), data->reg_base + addr, data->reg_base+addr2))
-
-/*
- *  temporary variable used between goldfish_audio_probe() and
- *  goldfish_audio_open()
- */
-static struct goldfish_audio *audio_data;
-
-enum {
-	/* audio status register */
-	AUDIO_INT_STATUS	= 0x00,
-	/* set this to enable IRQ */
-	AUDIO_INT_ENABLE	= 0x04,
-	/* set these to specify buffer addresses */
-	AUDIO_SET_WRITE_BUFFER_1 = 0x08,
-	AUDIO_SET_WRITE_BUFFER_2 = 0x0C,
-	/* set number of bytes in buffer to write */
-	AUDIO_WRITE_BUFFER_1  = 0x10,
-	AUDIO_WRITE_BUFFER_2  = 0x14,
-	AUDIO_SET_WRITE_BUFFER_1_HIGH = 0x28,
-	AUDIO_SET_WRITE_BUFFER_2_HIGH = 0x30,
-
-	/* true if audio input is supported */
-	AUDIO_READ_SUPPORTED = 0x18,
-	/* buffer to use for audio input */
-	AUDIO_SET_READ_BUFFER = 0x1C,
-	AUDIO_SET_READ_BUFFER_HIGH = 0x34,
-
-	/* driver writes number of bytes to read */
-	AUDIO_START_READ  = 0x20,
-
-	/* number of bytes available in read buffer */
-	AUDIO_READ_BUFFER_AVAILABLE  = 0x24,
-
-	/* AUDIO_INT_STATUS bits */
-
-	/* this bit set when it is safe to write more bytes to the buffer */
-	AUDIO_INT_WRITE_BUFFER_1_EMPTY	= 1U << 0,
-	AUDIO_INT_WRITE_BUFFER_2_EMPTY	= 1U << 1,
-	AUDIO_INT_READ_BUFFER_FULL      = 1U << 2,
-
-	AUDIO_INT_MASK                  = AUDIO_INT_WRITE_BUFFER_1_EMPTY |
-					  AUDIO_INT_WRITE_BUFFER_2_EMPTY |
-					  AUDIO_INT_READ_BUFFER_FULL,
-};
-
-static atomic_t open_count = ATOMIC_INIT(0);
-
-static ssize_t goldfish_audio_read(struct file *fp, char __user *buf,
-				   size_t count, loff_t *pos)
-{
-	struct goldfish_audio *data = fp->private_data;
-	int length;
-	int result = 0;
-
-	if (!data->read_supported)
-		return -ENODEV;
-
-	while (count > 0) {
-		length = (count > READ_BUFFER_SIZE ? READ_BUFFER_SIZE : count);
-		AUDIO_WRITE(data, AUDIO_START_READ, length);
-
-		wait_event_interruptible(data->wait, data->buffer_status &
-					 AUDIO_INT_READ_BUFFER_FULL);
-
-		length = AUDIO_READ(data, AUDIO_READ_BUFFER_AVAILABLE);
-
-		/* copy data to user space */
-		if (copy_to_user(buf, data->read_buffer, length))
-			return -EFAULT;
-
-		result += length;
-		buf += length;
-		count -= length;
-	}
-	return result;
-}
-
-static ssize_t goldfish_audio_write(struct file *fp, const char __user *buf,
-				    size_t count, loff_t *pos)
-{
-	struct goldfish_audio *data = fp->private_data;
-	unsigned long irq_flags;
-	ssize_t result = 0;
-	char *kbuf;
-
-	while (count > 0) {
-		ssize_t copy = count;
-
-		if (copy > WRITE_BUFFER_SIZE)
-			copy = WRITE_BUFFER_SIZE;
-		wait_event_interruptible(data->wait, data->buffer_status &
-					(AUDIO_INT_WRITE_BUFFER_1_EMPTY |
-					AUDIO_INT_WRITE_BUFFER_2_EMPTY));
-
-		if ((data->buffer_status & AUDIO_INT_WRITE_BUFFER_1_EMPTY) != 0)
-			kbuf = data->write_buffer1;
-		else
-			kbuf = data->write_buffer2;
-
-		/* copy from user space to the appropriate buffer */
-		if (copy_from_user(kbuf, buf, copy)) {
-			result = -EFAULT;
-			break;
-		}
-
-		spin_lock_irqsave(&data->lock, irq_flags);
-		/*
-		 *  clear the buffer empty flag, and signal the emulator
-		 *  to start writing the buffer
-		 */
-		if (kbuf == data->write_buffer1) {
-			data->buffer_status &= ~AUDIO_INT_WRITE_BUFFER_1_EMPTY;
-			AUDIO_WRITE(data, AUDIO_WRITE_BUFFER_1, copy);
-		} else {
-			data->buffer_status &= ~AUDIO_INT_WRITE_BUFFER_2_EMPTY;
-			AUDIO_WRITE(data, AUDIO_WRITE_BUFFER_2, copy);
-		}
-		spin_unlock_irqrestore(&data->lock, irq_flags);
-
-		buf += copy;
-		result += copy;
-		count -= copy;
-	}
-	return result;
-}
-
-static int goldfish_audio_open(struct inode *ip, struct file *fp)
-{
-	if (!audio_data)
-		return -ENODEV;
-
-	if (atomic_inc_return(&open_count) == 1) {
-		fp->private_data = audio_data;
-		audio_data->buffer_status = (AUDIO_INT_WRITE_BUFFER_1_EMPTY |
-					     AUDIO_INT_WRITE_BUFFER_2_EMPTY);
-		AUDIO_WRITE(audio_data, AUDIO_INT_ENABLE, AUDIO_INT_MASK);
-		return 0;
-	}
-
-	atomic_dec(&open_count);
-	return -EBUSY;
-}
-
-static int goldfish_audio_release(struct inode *ip, struct file *fp)
-{
-	atomic_dec(&open_count);
-	/* FIXME: surely this is wrong for the multi-opened case */
-	AUDIO_WRITE(audio_data, AUDIO_INT_ENABLE, 0);
-	return 0;
-}
-
-static long goldfish_audio_ioctl(struct file *fp, unsigned int cmd,
-				 unsigned long arg)
-{
-	/* temporary workaround, until we switch to the ALSA API */
-	if (cmd == 315)
-		return -1;
-
-	return 0;
-}
-
-static irqreturn_t goldfish_audio_interrupt(int irq, void *dev_id)
-{
-	unsigned long irq_flags;
-	struct goldfish_audio	*data = dev_id;
-	u32 status;
-
-	spin_lock_irqsave(&data->lock, irq_flags);
-
-	/* read buffer status flags */
-	status = AUDIO_READ(data, AUDIO_INT_STATUS);
-	status &= AUDIO_INT_MASK;
-	/*
-	 *  if buffers are newly empty, wake up blocked
-	 *  goldfish_audio_write() call
-	 */
-	if (status) {
-		data->buffer_status = status;
-		wake_up(&data->wait);
-	}
-
-	spin_unlock_irqrestore(&data->lock, irq_flags);
-	return status ? IRQ_HANDLED : IRQ_NONE;
-}
-
-/* file operations for /dev/eac */
-static const struct file_operations goldfish_audio_fops = {
-	.owner = THIS_MODULE,
-	.read = goldfish_audio_read,
-	.write = goldfish_audio_write,
-	.open = goldfish_audio_open,
-	.release = goldfish_audio_release,
-	.unlocked_ioctl = goldfish_audio_ioctl,
-};
-
-static struct miscdevice goldfish_audio_device = {
-	.minor = MISC_DYNAMIC_MINOR,
-	.name = "eac",
-	.fops = &goldfish_audio_fops,
-};
-
-static int goldfish_audio_probe(struct platform_device *pdev)
-{
-	int ret;
-	struct resource *r;
-	struct goldfish_audio *data;
-	dma_addr_t buf_addr;
-
-	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-	spin_lock_init(&data->lock);
-	init_waitqueue_head(&data->wait);
-	platform_set_drvdata(pdev, data);
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (r == NULL) {
-		dev_err(&pdev->dev, "platform_get_resource failed\n");
-		return -ENODEV;
-	}
-	data->reg_base = devm_ioremap(&pdev->dev, r->start, PAGE_SIZE);
-	if (data->reg_base == NULL)
-		return -ENOMEM;
-
-	data->irq = platform_get_irq(pdev, 0);
-	if (data->irq < 0) {
-		dev_err(&pdev->dev, "platform_get_irq failed\n");
-		return -ENODEV;
-	}
-	data->buffer_virt = dmam_alloc_coherent(&pdev->dev,
-				COMBINED_BUFFER_SIZE, &buf_addr, GFP_KERNEL);
-	if (data->buffer_virt == NULL) {
-		dev_err(&pdev->dev, "allocate buffer failed\n");
-		return -ENOMEM;
-	}
-	data->buffer_phys = buf_addr;
-	data->write_buffer1 = data->buffer_virt;
-	data->write_buffer2 = data->buffer_virt + WRITE_BUFFER_SIZE;
-	data->read_buffer = data->buffer_virt + 2 * WRITE_BUFFER_SIZE;
-
-	ret = devm_request_irq(&pdev->dev, data->irq, goldfish_audio_interrupt,
-			       IRQF_SHARED, pdev->name, data);
-	if (ret) {
-		dev_err(&pdev->dev, "request_irq failed\n");
-		return ret;
-	}
-
-	ret = misc_register(&goldfish_audio_device);
-	if (ret) {
-		dev_err(&pdev->dev,
-			"misc_register returned %d in goldfish_audio_init\n",
-								ret);
-		return ret;
-	}
-
-	AUDIO_WRITE64(data, AUDIO_SET_WRITE_BUFFER_1,
-		      AUDIO_SET_WRITE_BUFFER_1_HIGH, buf_addr);
-	buf_addr += WRITE_BUFFER_SIZE;
-
-	AUDIO_WRITE64(data, AUDIO_SET_WRITE_BUFFER_2,
-		      AUDIO_SET_WRITE_BUFFER_2_HIGH, buf_addr);
-
-	buf_addr += WRITE_BUFFER_SIZE;
-
-	data->read_supported = AUDIO_READ(data, AUDIO_READ_SUPPORTED);
-	if (data->read_supported)
-		AUDIO_WRITE64(data, AUDIO_SET_READ_BUFFER,
-			      AUDIO_SET_READ_BUFFER_HIGH, buf_addr);
-
-	audio_data = data;
-	return 0;
-}
-
-static int goldfish_audio_remove(struct platform_device *pdev)
-{
-	misc_deregister(&goldfish_audio_device);
-	audio_data = NULL;
-	return 0;
-}
-
-static struct platform_driver goldfish_audio_driver = {
-	.probe		= goldfish_audio_probe,
-	.remove		= goldfish_audio_remove,
-	.driver = {
-		.name = "goldfish_audio"
-	}
-};
-
-module_platform_driver(goldfish_audio_driver);
diff --git a/drivers/staging/goldfish/goldfish_nand.c b/drivers/staging/goldfish/goldfish_nand.c
deleted file mode 100644
index 66ae48fcc2b2..000000000000
--- a/drivers/staging/goldfish/goldfish_nand.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/*
- * drivers/mtd/devices/goldfish_nand.c
- *
- * Copyright (C) 2007 Google, Inc.
- * Copyright (C) 2012 Intel, Inc.
- * Copyright (C) 2013 Intel, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/io.h>
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/vmalloc.h>
-#include <linux/mtd/mtd.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/goldfish.h>
-#include <asm/div64.h>
-
-#include "goldfish_nand_reg.h"
-
-struct goldfish_nand {
-	/* lock protects access to the device registers */
-	struct mutex            lock;
-	unsigned char __iomem  *base;
-	struct cmd_params       *cmd_params;
-	size_t                  mtd_count;
-	struct mtd_info         mtd[0];
-};
-
-static u32 goldfish_nand_cmd_with_params(struct mtd_info *mtd,
-					 enum nand_cmd cmd, u64 addr, u32 len,
-					 void *ptr, u32 *rv)
-{
-	u32 cmdp;
-	struct goldfish_nand *nand = mtd->priv;
-	struct cmd_params *cps = nand->cmd_params;
-	unsigned char __iomem  *base = nand->base;
-
-	if (cps == NULL)
-		return -1;
-
-	switch (cmd) {
-	case NAND_CMD_ERASE:
-		cmdp = NAND_CMD_ERASE_WITH_PARAMS;
-		break;
-	case NAND_CMD_READ:
-		cmdp = NAND_CMD_READ_WITH_PARAMS;
-		break;
-	case NAND_CMD_WRITE:
-		cmdp = NAND_CMD_WRITE_WITH_PARAMS;
-		break;
-	default:
-		return -1;
-	}
-	cps->dev = mtd - nand->mtd;
-	cps->addr_high = (u32)(addr >> 32);
-	cps->addr_low = (u32)addr;
-	cps->transfer_size = len;
-	cps->data = (unsigned long)ptr;
-	writel(cmdp, base + NAND_COMMAND);
-	*rv = cps->result;
-	return 0;
-}
-
-static u32 goldfish_nand_cmd(struct mtd_info *mtd, enum nand_cmd cmd,
-			     u64 addr, u32 len, void *ptr)
-{
-	struct goldfish_nand *nand = mtd->priv;
-	u32 rv;
-	unsigned char __iomem  *base = nand->base;
-
-	mutex_lock(&nand->lock);
-	if (goldfish_nand_cmd_with_params(mtd, cmd, addr, len, ptr, &rv)) {
-		writel(mtd - nand->mtd, base + NAND_DEV);
-		writel((u32)(addr >> 32), base + NAND_ADDR_HIGH);
-		writel((u32)addr, base + NAND_ADDR_LOW);
-		writel(len, base + NAND_TRANSFER_SIZE);
-		gf_write_ptr(ptr, base + NAND_DATA, base + NAND_DATA_HIGH);
-		writel(cmd, base + NAND_COMMAND);
-		rv = readl(base + NAND_RESULT);
-	}
-	mutex_unlock(&nand->lock);
-	return rv;
-}
-
-static int goldfish_nand_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
-	loff_t ofs = instr->addr;
-	u32 len = instr->len;
-	u32 rem;
-
-	if (ofs + len > mtd->size)
-		goto invalid_arg;
-	rem = do_div(ofs, mtd->writesize);
-	if (rem)
-		goto invalid_arg;
-	ofs *= (mtd->writesize + mtd->oobsize);
-
-	if (len % mtd->writesize)
-		goto invalid_arg;
-	len = len / mtd->writesize * (mtd->writesize + mtd->oobsize);
-
-	if (goldfish_nand_cmd(mtd, NAND_CMD_ERASE, ofs, len, NULL) != len) {
-		pr_err("goldfish_nand_erase: erase failed, start %llx, len %x, dev_size %llx, erase_size %x\n",
-		       ofs, len, mtd->size, mtd->erasesize);
-		return -EIO;
-	}
-
-	instr->state = MTD_ERASE_DONE;
-	mtd_erase_callback(instr);
-
-	return 0;
-
-invalid_arg:
-	pr_err("goldfish_nand_erase: invalid erase, start %llx, len %x, dev_size %llx, erase_size %x\n",
-	       ofs, len, mtd->size, mtd->erasesize);
-	return -EINVAL;
-}
-
-static int goldfish_nand_read_oob(struct mtd_info *mtd, loff_t ofs,
-				  struct mtd_oob_ops *ops)
-{
-	u32 rem;
-
-	if (ofs + ops->len > mtd->size)
-		goto invalid_arg;
-	if (ops->datbuf && ops->len && ops->len != mtd->writesize)
-		goto invalid_arg;
-	if (ops->ooblen + ops->ooboffs > mtd->oobsize)
-		goto invalid_arg;
-
-	rem = do_div(ofs, mtd->writesize);
-	if (rem)
-		goto invalid_arg;
-	ofs *= (mtd->writesize + mtd->oobsize);
-
-	if (ops->datbuf)
-		ops->retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, ofs,
-						ops->len, ops->datbuf);
-	ofs += mtd->writesize + ops->ooboffs;
-	if (ops->oobbuf)
-		ops->oobretlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, ofs,
-						ops->ooblen, ops->oobbuf);
-	return 0;
-
-invalid_arg:
-	pr_err("goldfish_nand_read_oob: invalid read, start %llx, len %zx, ooblen %zx, dev_size %llx, write_size %x\n",
-	       ofs, ops->len, ops->ooblen, mtd->size, mtd->writesize);
-	return -EINVAL;
-}
-
-static int goldfish_nand_write_oob(struct mtd_info *mtd, loff_t ofs,
-				   struct mtd_oob_ops *ops)
-{
-	u32 rem;
-
-	if (ofs + ops->len > mtd->size)
-		goto invalid_arg;
-	if (ops->len && ops->len != mtd->writesize)
-		goto invalid_arg;
-	if (ops->ooblen + ops->ooboffs > mtd->oobsize)
-		goto invalid_arg;
-
-	rem = do_div(ofs, mtd->writesize);
-	if (rem)
-		goto invalid_arg;
-	ofs *= (mtd->writesize + mtd->oobsize);
-
-	if (ops->datbuf)
-		ops->retlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, ofs,
-						ops->len, ops->datbuf);
-	ofs += mtd->writesize + ops->ooboffs;
-	if (ops->oobbuf)
-		ops->oobretlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, ofs,
-						ops->ooblen, ops->oobbuf);
-	return 0;
-
-invalid_arg:
-	pr_err("goldfish_nand_write_oob: invalid write, start %llx, len %zx, ooblen %zx, dev_size %llx, write_size %x\n",
-	       ofs, ops->len, ops->ooblen, mtd->size, mtd->writesize);
-	return -EINVAL;
-}
-
-static int goldfish_nand_read(struct mtd_info *mtd, loff_t from, size_t len,
-			      size_t *retlen, u_char *buf)
-{
-	u32 rem;
-
-	if (from + len > mtd->size)
-		goto invalid_arg;
-
-	rem = do_div(from, mtd->writesize);
-	if (rem)
-		goto invalid_arg;
-	from *= (mtd->writesize + mtd->oobsize);
-
-	*retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, from, len, buf);
-	return 0;
-
-invalid_arg:
-	pr_err("goldfish_nand_read: invalid read, start %llx, len %zx, dev_size %llx, write_size %x\n",
-	       from, len, mtd->size, mtd->writesize);
-	return -EINVAL;
-}
-
-static int goldfish_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
-			       size_t *retlen, const u_char *buf)
-{
-	u32 rem;
-
-	if (to + len > mtd->size)
-		goto invalid_arg;
-
-	rem = do_div(to, mtd->writesize);
-	if (rem)
-		goto invalid_arg;
-	to *= (mtd->writesize + mtd->oobsize);
-
-	*retlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, to, len, (void *)buf);
-	return 0;
-
-invalid_arg:
-	pr_err("goldfish_nand_write: invalid write, start %llx, len %zx, dev_size %llx, write_size %x\n",
-	       to, len, mtd->size, mtd->writesize);
-	return -EINVAL;
-}
-
-static int goldfish_nand_block_isbad(struct mtd_info *mtd, loff_t ofs)
-{
-	u32 rem;
-
-	if (ofs >= mtd->size)
-		goto invalid_arg;
-
-	rem = do_div(ofs, mtd->erasesize);
-	if (rem)
-		goto invalid_arg;
-	ofs *= mtd->erasesize / mtd->writesize;
-	ofs *= (mtd->writesize + mtd->oobsize);
-
-	return goldfish_nand_cmd(mtd, NAND_CMD_BLOCK_BAD_GET, ofs, 0, NULL);
-
-invalid_arg:
-	pr_err("goldfish_nand_block_isbad: invalid arg, ofs %llx, dev_size %llx, write_size %x\n",
-	       ofs, mtd->size, mtd->writesize);
-	return -EINVAL;
-}
-
-static int goldfish_nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
-{
-	u32 rem;
-
-	if (ofs >= mtd->size)
-		goto invalid_arg;
-
-	rem = do_div(ofs, mtd->erasesize);
-	if (rem)
-		goto invalid_arg;
-	ofs *= mtd->erasesize / mtd->writesize;
-	ofs *= (mtd->writesize + mtd->oobsize);
-
-	if (goldfish_nand_cmd(mtd, NAND_CMD_BLOCK_BAD_SET, ofs, 0, NULL) != 1)
-		return -EIO;
-	return 0;
-
-invalid_arg:
-	pr_err("goldfish_nand_block_markbad: invalid arg, ofs %llx, dev_size %llx, write_size %x\n",
-	       ofs, mtd->size, mtd->writesize);
-	return -EINVAL;
-}
-
-static int nand_setup_cmd_params(struct platform_device *pdev,
-				 struct goldfish_nand *nand)
-{
-	u64 paddr;
-	unsigned char __iomem  *base = nand->base;
-
-	nand->cmd_params = devm_kzalloc(&pdev->dev,
-					sizeof(struct cmd_params), GFP_KERNEL);
-	if (!nand->cmd_params)
-		return -1;
-
-	paddr = __pa(nand->cmd_params);
-	writel((u32)(paddr >> 32), base + NAND_CMD_PARAMS_ADDR_HIGH);
-	writel((u32)paddr, base + NAND_CMD_PARAMS_ADDR_LOW);
-	return 0;
-}
-
-static int goldfish_nand_init_device(struct platform_device *pdev,
-				     struct goldfish_nand *nand, int id)
-{
-	u32 name_len;
-	u32 result;
-	u32 flags;
-	unsigned char __iomem  *base = nand->base;
-	struct mtd_info *mtd = &nand->mtd[id];
-	char *name;
-
-	mutex_lock(&nand->lock);
-	writel(id, base + NAND_DEV);
-	flags = readl(base + NAND_DEV_FLAGS);
-	name_len = readl(base + NAND_DEV_NAME_LEN);
-	mtd->writesize = readl(base + NAND_DEV_PAGE_SIZE);
-	mtd->size = readl(base + NAND_DEV_SIZE_LOW);
-	mtd->size |= (u64)readl(base + NAND_DEV_SIZE_HIGH) << 32;
-	mtd->oobsize = readl(base + NAND_DEV_EXTRA_SIZE);
-	mtd->oobavail = mtd->oobsize;
-	mtd->erasesize = readl(base + NAND_DEV_ERASE_SIZE) /
-			(mtd->writesize + mtd->oobsize) * mtd->writesize;
-	do_div(mtd->size, mtd->writesize + mtd->oobsize);
-	mtd->size *= mtd->writesize;
-	dev_dbg(&pdev->dev,
-		"goldfish nand dev%d: size %llx, page %d, extra %d, erase %d\n",
-		       id, mtd->size, mtd->writesize,
-		       mtd->oobsize, mtd->erasesize);
-	mutex_unlock(&nand->lock);
-
-	mtd->priv = nand;
-
-	name = devm_kzalloc(&pdev->dev, name_len + 1, GFP_KERNEL);
-	if (!name)
-		return -ENOMEM;
-	mtd->name = name;
-
-	result = goldfish_nand_cmd(mtd, NAND_CMD_GET_DEV_NAME, 0, name_len,
-				   name);
-	if (result != name_len) {
-		dev_err(&pdev->dev,
-			"goldfish_nand_init_device failed to get dev name %d != %d\n",
-			       result, name_len);
-		return -ENODEV;
-	}
-	((char *)mtd->name)[name_len] = '\0';
-
-	/* Setup the MTD structure */
-	mtd->type = MTD_NANDFLASH;
-	mtd->flags = MTD_CAP_NANDFLASH;
-	if (flags & NAND_DEV_FLAG_READ_ONLY)
-		mtd->flags &= ~MTD_WRITEABLE;
-	if (flags & NAND_DEV_FLAG_CMD_PARAMS_CAP)
-		nand_setup_cmd_params(pdev, nand);
-
-	mtd->owner = THIS_MODULE;
-	mtd->_erase = goldfish_nand_erase;
-	mtd->_read = goldfish_nand_read;
-	mtd->_write = goldfish_nand_write;
-	mtd->_read_oob = goldfish_nand_read_oob;
-	mtd->_write_oob = goldfish_nand_write_oob;
-	mtd->_block_isbad = goldfish_nand_block_isbad;
-	mtd->_block_markbad = goldfish_nand_block_markbad;
-
-	if (mtd_device_register(mtd, NULL, 0))
-		return -EIO;
-
-	return 0;
-}
-
-static int goldfish_nand_probe(struct platform_device *pdev)
-{
-	u32 num_dev;
-	int i;
-	int err;
-	u32 num_dev_working;
-	u32 version;
-	struct resource *r;
-	struct goldfish_nand *nand;
-	unsigned char __iomem  *base;
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (r == NULL)
-		return -ENODEV;
-
-	base = devm_ioremap(&pdev->dev, r->start, PAGE_SIZE);
-	if (!base)
-		return -ENOMEM;
-
-	version = readl(base + NAND_VERSION);
-	if (version != NAND_VERSION_CURRENT) {
-		dev_err(&pdev->dev,
-			"goldfish_nand_init: version mismatch, got %d, expected %d\n",
-				version, NAND_VERSION_CURRENT);
-		return -ENODEV;
-	}
-	num_dev = readl(base + NAND_NUM_DEV);
-	if (num_dev == 0)
-		return -ENODEV;
-
-	nand = devm_kzalloc(&pdev->dev, sizeof(*nand) +
-				sizeof(struct mtd_info) * num_dev, GFP_KERNEL);
-	if (!nand)
-		return -ENOMEM;
-
-	mutex_init(&nand->lock);
-	nand->base = base;
-	nand->mtd_count = num_dev;
-	platform_set_drvdata(pdev, nand);
-
-	num_dev_working = 0;
-	for (i = 0; i < num_dev; i++) {
-		err = goldfish_nand_init_device(pdev, nand, i);
-		if (err == 0)
-			num_dev_working++;
-	}
-	if (num_dev_working == 0)
-		return -ENODEV;
-	return 0;
-}
-
-static int goldfish_nand_remove(struct platform_device *pdev)
-{
-	struct goldfish_nand *nand = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < nand->mtd_count; i++) {
-		if (nand->mtd[i].name)
-			mtd_device_unregister(&nand->mtd[i]);
-	}
-	return 0;
-}
-
-static struct platform_driver goldfish_nand_driver = {
-	.probe		= goldfish_nand_probe,
-	.remove		= goldfish_nand_remove,
-	.driver = {
-		.name = "goldfish_nand"
-	}
-};
-
-module_platform_driver(goldfish_nand_driver);
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/goldfish/goldfish_nand_reg.h b/drivers/staging/goldfish/goldfish_nand_reg.h
deleted file mode 100644
index fe7f47c7a5c8..000000000000
--- a/drivers/staging/goldfish/goldfish_nand_reg.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * drivers/mtd/devices/goldfish_nand_reg.h
- *
- * Copyright (C) 2007 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef GOLDFISH_NAND_REG_H
-#define GOLDFISH_NAND_REG_H
-
-enum nand_cmd {
-	/* Write device name for NAND_DEV to NAND_DATA (vaddr) */
-	NAND_CMD_GET_DEV_NAME,
-	NAND_CMD_READ,
-	NAND_CMD_WRITE,
-	NAND_CMD_ERASE,
-	/* NAND_RESULT is 1 if block is bad, 0 if it is not */
-	NAND_CMD_BLOCK_BAD_GET,
-	NAND_CMD_BLOCK_BAD_SET,
-	NAND_CMD_READ_WITH_PARAMS,
-	NAND_CMD_WRITE_WITH_PARAMS,
-	NAND_CMD_ERASE_WITH_PARAMS
-};
-
-enum nand_dev_flags {
-	NAND_DEV_FLAG_READ_ONLY = 0x00000001,
-	NAND_DEV_FLAG_CMD_PARAMS_CAP = 0x00000002,
-};
-
-#define NAND_VERSION_CURRENT (1)
-
-enum nand_reg {
-	/* Global */
-	NAND_VERSION        = 0x000,
-	NAND_NUM_DEV        = 0x004,
-	NAND_DEV            = 0x008,
-
-	/* Dev info */
-	NAND_DEV_FLAGS      = 0x010,
-	NAND_DEV_NAME_LEN   = 0x014,
-	NAND_DEV_PAGE_SIZE  = 0x018,
-	NAND_DEV_EXTRA_SIZE = 0x01c,
-	NAND_DEV_ERASE_SIZE = 0x020,
-	NAND_DEV_SIZE_LOW   = 0x028,
-	NAND_DEV_SIZE_HIGH  = 0x02c,
-
-	/* Command */
-	NAND_RESULT         = 0x040,
-	NAND_COMMAND        = 0x044,
-	NAND_DATA           = 0x048,
-	NAND_DATA_HIGH	    = 0x100,
-	NAND_TRANSFER_SIZE  = 0x04c,
-	NAND_ADDR_LOW       = 0x050,
-	NAND_ADDR_HIGH      = 0x054,
-	NAND_CMD_PARAMS_ADDR_LOW = 0x058,
-	NAND_CMD_PARAMS_ADDR_HIGH = 0x05c,
-};
-
-struct cmd_params {
-	uint32_t dev;
-	uint32_t addr_low;
-	uint32_t addr_high;
-	uint32_t transfer_size;
-	unsigned long data;
-	uint32_t result;
-};
-#endif
diff --git a/drivers/staging/greybus/Documentation/firmware/authenticate.c b/drivers/staging/greybus/Documentation/firmware/authenticate.c
new file mode 100644
index 000000000000..3d2c6f88a138
--- /dev/null
+++ b/drivers/staging/greybus/Documentation/firmware/authenticate.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Sample code to test CAP protocol
+ *
+ * Copyright(c) 2016 Google Inc. All rights reserved.
+ * Copyright(c) 2016 Linaro Ltd. All rights reserved.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "../../greybus_authentication.h"
+
+struct cap_ioc_get_endpoint_uid uid;
+struct cap_ioc_get_ims_certificate cert = {
+	.certificate_class = 0,
+	.certificate_id = 0,
+};
+
+struct cap_ioc_authenticate authenticate = {
+	.auth_type = 0,
+	.challenge = {0},
+};
+
+int main(int argc, char *argv[])
+{
+	unsigned int timeout = 10000;
+	char *capdev;
+	int fd, ret;
+
+	/* Make sure arguments are correct */
+	if (argc != 2) {
+		printf("\nUsage: ./firmware <Path of the gb-cap-X dev>\n");
+		return 0;
+	}
+
+	capdev = argv[1];
+
+	printf("Opening %s authentication device\n", capdev);
+
+	fd = open(capdev, O_RDWR);
+	if (fd < 0) {
+		printf("Failed to open: %s\n", capdev);
+		return -1;
+	}
+
+	/* Get UID */
+	printf("Get UID\n");
+
+	ret = ioctl(fd, CAP_IOC_GET_ENDPOINT_UID, &uid);
+	if (ret < 0) {
+		printf("Failed to get UID: %s (%d)\n", capdev, ret);
+		ret = -1;
+		goto close_fd;
+	}
+
+	printf("UID received: 0x%llx\n", *(unsigned long long int *)(uid.uid));
+
+	/* Get certificate */
+	printf("Get IMS certificate\n");
+
+	ret = ioctl(fd, CAP_IOC_GET_IMS_CERTIFICATE, &cert);
+	if (ret < 0) {
+		printf("Failed to get IMS certificate: %s (%d)\n", capdev, ret);
+		ret = -1;
+		goto close_fd;
+	}
+
+	printf("IMS Certificate size: %d\n", cert.cert_size);
+
+	/* Authenticate */
+	printf("Authenticate module\n");
+
+	memcpy(authenticate.uid, uid.uid, 8);
+
+	ret = ioctl(fd, CAP_IOC_AUTHENTICATE, &authenticate);
+	if (ret < 0) {
+		printf("Failed to authenticate module: %s (%d)\n", capdev, ret);
+		ret = -1;
+		goto close_fd;
+	}
+
+	printf("Authenticated, result (%02x), sig-size (%02x)\n",
+		authenticate.result_code, authenticate.signature_size);
+
+close_fd:
+	close(fd);
+
+	return ret;
+}
diff --git a/drivers/staging/greybus/Documentation/firmware/firmware-management b/drivers/staging/greybus/Documentation/firmware/firmware-management
new file mode 100644
index 000000000000..7918257e5b3b
--- /dev/null
+++ b/drivers/staging/greybus/Documentation/firmware/firmware-management
@@ -0,0 +1,333 @@
+
+Firmware Management
+-------------------
+ Copyright 2016 Google Inc.
+ Copyright 2016 Linaro Ltd.
+
+Interface-Manifest
+------------------
+
+All firmware packages on the Modules or Interfaces are managed by a special
+Firmware Management Protocol. To support Firmware Management by the AP, the
+Interface Manifest shall at least contain the Firmware Management Bundle and a
+Firmware Management Protocol CPort within it.
+
+The bundle may contain additional CPorts based on the extra functionality
+required to manage firmware packages.
+
+For example, this is how the Firmware Management part of the Interface Manifest
+may look like:
+
+	; Firmware Management Bundle (Bundle 1):
+	[bundle-descriptor 1]
+	class = 0x16
+
+	; (Mandatory) Firmware Management Protocol on CPort 1
+	[cport-descriptor 2]
+	bundle = 1
+	protocol = 0x18
+
+	; (Optional) Firmware Download Protocol on CPort 2
+	[cport-descriptor 1]
+	bundle = 1
+	protocol = 0x17
+
+	; (Optional) SPI protocol on CPort 3
+	[cport-descriptor 3]
+	bundle = 1
+	protocol = 0x0b
+
+	; (Optional) Component Authentication Protocol (CAP) on CPort 4
+	[cport-descriptor 4]
+	bundle = 1
+	protocol = 0x19
+
+
+Sysfs Interfaces - Firmware Management
+--------------------------------------
+
+The Firmware Management Protocol interacts with Userspace using the character
+device interface. The character device will be present in /dev/ directory
+and will be named gb-fw-mgmt-<N>. The number <N> is assigned at runtime.
+
+Identifying the Character Device
+================================
+
+There can be multiple devices present in /dev/ directory with name gb-fw-mgmt-N
+and user first needs to identify the character device used for
+firmware-management for a particular interface.
+
+The Firmware Management core creates a device of class 'gb_fw_mgmt', which shall
+be used by the user to identify the right character device for it. The class
+device is created within the Bundle directory for a particular Interface.
+
+For example this is how the class-device can be present:
+
+/sys/bus/greybus/devices/1-1/1-1.1/1-1.1.1/gb_fw_mgmt/gb-fw-mgmt-0
+
+The last name in this path: gb-fw-mgmt-0 is precisely the name of the char
+device and so the device in this case will be:
+
+/dev/gb-fw-mgmt-0.
+
+Operations on the Char device
+=============================
+
+The Character device (gb-fw-mgmt-0 in example) can be opened by the userspace
+application and it can perform various 'ioctl' operations on the device. The
+device doesn't support any read/write operations.
+
+Following are the IOCTLs and their data structures available to the user:
+
+/* IOCTL support */
+#define GB_FW_LOAD_METHOD_UNIPRO		0x01
+#define GB_FW_LOAD_METHOD_INTERNAL		0x02
+
+#define GB_FW_LOAD_STATUS_FAILED		0x00
+#define GB_FW_LOAD_STATUS_UNVALIDATED		0x01
+#define GB_FW_LOAD_STATUS_VALIDATED		0x02
+#define GB_FW_LOAD_STATUS_VALIDATION_FAILED	0x03
+
+#define GB_FW_BACKEND_FW_STATUS_SUCCESS		0x01
+#define GB_FW_BACKEND_FW_STATUS_FAIL_FIND	0x02
+#define GB_FW_BACKEND_FW_STATUS_FAIL_FETCH	0x03
+#define GB_FW_BACKEND_FW_STATUS_FAIL_WRITE	0x04
+#define GB_FW_BACKEND_FW_STATUS_INT		0x05
+#define GB_FW_BACKEND_FW_STATUS_RETRY		0x06
+#define GB_FW_BACKEND_FW_STATUS_NOT_SUPPORTED	0x07
+
+#define GB_FW_BACKEND_VERSION_STATUS_SUCCESS		0x01
+#define GB_FW_BACKEND_VERSION_STATUS_NOT_AVAILABLE	0x02
+#define GB_FW_BACKEND_VERSION_STATUS_NOT_SUPPORTED	0x03
+#define GB_FW_BACKEND_VERSION_STATUS_RETRY		0x04
+#define GB_FW_BACKEND_VERSION_STATUS_FAIL_INT		0x05
+
+
+struct fw_mgmt_ioc_get_intf_version {
+	__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
+	__u16 major;
+	__u16 minor;
+} __attribute__ ((__packed__));
+
+struct fw_mgmt_ioc_get_backend_version {
+	__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
+	__u16 major;
+	__u16 minor;
+	__u8 status;
+} __attribute__ ((__packed__));
+
+struct fw_mgmt_ioc_intf_load_and_validate {
+	__u8			firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+	__u8			load_method;
+	__u8			status;
+	__u16			major;
+	__u16			minor;
+} __packed;
+
+struct fw_mgmt_ioc_backend_fw_update {
+	__u8			firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+	__u8			status;
+} __packed;
+
+#define FW_MGMT_IOCTL_BASE			'S'
+#define FW_MGMT_IOC_GET_INTF_FW			_IOR(FW_MGMT_IOCTL_BASE, 0, struct fw_mgmt_ioc_get_intf_version)
+#define FW_MGMT_IOC_GET_BACKEND_FW		_IOWR(FW_MGMT_IOCTL_BASE, 1, struct fw_mgmt_ioc_get_backend_version)
+#define FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE	_IOWR(FW_MGMT_IOCTL_BASE, 2, struct fw_mgmt_ioc_intf_load_and_validate)
+#define FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE	_IOWR(FW_MGMT_IOCTL_BASE, 3, struct fw_mgmt_ioc_backend_fw_update)
+#define FW_MGMT_IOC_SET_TIMEOUT_MS		_IOW(FW_MGMT_IOCTL_BASE, 4, unsigned int)
+#define FW_MGMT_IOC_MODE_SWITCH			_IO(FW_MGMT_IOCTL_BASE, 5)
+
+1. FW_MGMT_IOC_GET_INTF_FW:
+
+   This ioctl shall be used by the user to get the version and firmware-tag of
+   the currently running Interface Firmware. All the fields of the 'struct
+   fw_mgmt_ioc_get_fw' are filled by the kernel.
+
+2. FW_MGMT_IOC_GET_BACKEND_FW:
+
+   This ioctl shall be used by the user to get the version of a currently
+   running Backend Interface Firmware identified by a firmware-tag. The user is
+   required to fill the 'firmware_tag' field of the 'struct fw_mgmt_ioc_get_fw'
+   in this case. The 'major' and 'minor' fields are set by the kernel in
+   response.
+
+3. FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE:
+
+   This ioctl shall be used by the user to load an Interface Firmware package on
+   an Interface. The user needs to fill the 'firmware_tag' and 'load_method'
+   fields of the 'struct fw_mgmt_ioc_intf_load_and_validate'. The 'status',
+   'major' and 'minor' fields are set by the kernel in response.
+
+4. FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE:
+
+   This ioctl shall be used by the user to request an Interface to update a
+   Backend Interface Firmware.  The user is required to fill the 'firmware_tag'
+   field of the 'struct fw_mgmt_ioc_get_fw' in this case. The 'status' field is
+   set by the kernel in response.
+
+5. FW_MGMT_IOC_SET_TIMEOUT_MS:
+
+   This ioctl shall be used by the user to increase the timeout interval within
+   which the firmware must get loaded by the Module. The default timeout is 1
+   second. The user needs to pass the timeout in milliseconds.
+
+6. FW_MGMT_IOC_MODE_SWITCH:
+
+   This ioctl shall be used by the user to mode-switch the module to the
+   previously loaded interface firmware. If the interface firmware isn't loaded
+   previously, or if another unsuccessful FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE
+   operation is started after loading interface firmware, then the firmware core
+   wouldn't allow mode-switch.
+
+
+Sysfs Interfaces - Authentication
+---------------------------------
+
+The Component Authentication Protocol interacts with Userspace using the
+character device interface. The character device will be present in /dev/
+directory and will be named gb-authenticate-<N>. The number <N> is assigned at
+runtime.
+
+Identifying the Character Device
+================================
+
+There can be multiple devices present in /dev/ directory with name
+gb-authenticate-N and user first needs to identify the character device used for
+authentication a of particular interface.
+
+The Authentication core creates a device of class 'gb_authenticate', which shall
+be used by the user to identify the right character device for it. The class
+device is created within the Bundle directory for a particular Interface.
+
+For example this is how the class-device can be present:
+
+/sys/bus/greybus/devices/1-1/1-1.1/1-1.1.1/gb_authenticate/gb-authenticate-0
+
+The last name in this path: gb-authenticate-0 is precisely the name of the char
+device and so the device in this case will be:
+
+/dev/gb-authenticate-0.
+
+Operations on the Char device
+=============================
+
+The Character device (/dev/gb-authenticate-0 in above example) can be opened by
+the userspace application and it can perform various 'ioctl' operations on the
+device. The device doesn't support any read/write operations.
+
+Following are the IOCTLs and their data structures available to the user:
+
+#define CAP_CERTIFICATE_MAX_SIZE	1600
+#define CAP_SIGNATURE_MAX_SIZE		320
+
+/* Certificate class types */
+#define CAP_CERT_IMS_EAPC		0x00000001
+#define CAP_CERT_IMS_EASC		0x00000002
+#define CAP_CERT_IMS_EARC		0x00000003
+#define CAP_CERT_IMS_IAPC		0x00000004
+#define CAP_CERT_IMS_IASC		0x00000005
+#define CAP_CERT_IMS_IARC		0x00000006
+
+/* IMS Certificate response result codes */
+#define CAP_IMS_RESULT_CERT_FOUND	0x00
+#define CAP_IMS_RESULT_CERT_CLASS_INVAL	0x01
+#define CAP_IMS_RESULT_CERT_CORRUPT	0x02
+#define CAP_IMS_RESULT_CERT_NOT_FOUND	0x03
+
+/* Authentication types */
+#define CAP_AUTH_IMS_PRI		0x00000001
+#define CAP_AUTH_IMS_SEC		0x00000002
+#define CAP_AUTH_IMS_RSA		0x00000003
+
+/* Authenticate response result codes */
+#define CAP_AUTH_RESULT_CR_SUCCESS	0x00
+#define CAP_AUTH_RESULT_CR_BAD_TYPE	0x01
+#define CAP_AUTH_RESULT_CR_WRONG_EP	0x02
+#define CAP_AUTH_RESULT_CR_NO_KEY	0x03
+#define CAP_AUTH_RESULT_CR_SIG_FAIL	0x04
+
+
+/* IOCTL support */
+struct cap_ioc_get_endpoint_uid {
+	__u8			uid[8];
+} __attribute__ ((__packed__));
+
+struct cap_ioc_get_ims_certificate {
+	__u32			certificate_class;
+	__u32			certificate_id;
+
+	__u8			result_code;
+	__u32			cert_size;
+	__u8			certificate[CAP_CERTIFICATE_MAX_SIZE];
+} __attribute__ ((__packed__));
+
+struct cap_ioc_authenticate {
+	__u32			auth_type;
+	__u8			uid[8];
+	__u8			challenge[32];
+
+	__u8			result_code;
+	__u8			response[64];
+	__u32			signature_size;
+	__u8			signature[CAP_SIGNATURE_MAX_SIZE];
+} __attribute__ ((__packed__));
+
+#define CAP_IOCTL_BASE			'C'
+#define CAP_IOC_GET_ENDPOINT_UID	_IOR(CAP_IOCTL_BASE, 0, struct cap_ioc_get_endpoint_uid)
+#define CAP_IOC_GET_IMS_CERTIFICATE	_IOWR(CAP_IOCTL_BASE, 1, struct cap_ioc_get_ims_certificate)
+#define CAP_IOC_AUTHENTICATE		_IOWR(CAP_IOCTL_BASE, 2, struct cap_ioc_authenticate)
+
+
+1. CAP_IOC_GET_ENDPOINT_UID:
+
+   This ioctl shall be used by the user to get the endpoint UID associated with
+   the Interface.  All the fields of the 'struct cap_ioc_get_endpoint_uid' are
+   filled by the kernel.
+
+2. CAP_IOC_GET_IMS_CERTIFICATE:
+
+   This ioctl shall be used by the user to retrieve one of the available
+   cryptographic certificates held by the Interface for use in Component
+   Authentication. The user is required to fill the 'certificate_class' and
+   'certificate_id' field of the 'struct cap_ioc_get_ims_certificate' in this
+   case. The other fields will be set by the kernel in response. The first
+   'cert_size' bytes of the 'certificate' shall be read by the user and others
+   must be discarded.
+
+3. CAP_IOC_AUTHENTICATE:
+
+   This ioctl shall be used by the user to authenticate the Module attached to
+   an Interface.  The user needs to fill the 'auth_type', 'uid', and 'challenge'
+   fields of the 'struct cap_ioc_authenticate'. The other fields will be set by
+   the kernel in response.  The first 'signature_size' bytes of the 'signature'
+   shall be read by the user and others must be discarded.
+
+
+Sysfs Interfaces - Firmware Download
+------------------------------------
+
+The Firmware Download Protocol uses the existing Linux Kernel's Firmware class
+and the interface provided to userspace are described in:
+Documentation/firmware_class/.
+
+
+Sysfs Interfaces - SPI Flash
+----------------------------
+
+The SPI flash is exposed in userspace as a MTD device and is created
+within the Bundle directory. For example, this is how the path may look like:
+
+$ ls /sys/bus/greybus/devices/1-1/1-1.1/1-1.1.1/spi_master/spi32766/spi32766.0/mtd
+mtd0    mtd0ro
+
+
+Sample Applications
+-------------------
+
+The current directory also provides a firmware.c test application, which can be
+referenced while developing userspace application to talk to firmware-management
+protocol.
+
+The current directory also provides a authenticate.c test application, which can
+be referenced while developing userspace application to talk to
+component authentication protocol.
diff --git a/drivers/staging/greybus/Documentation/firmware/firmware.c b/drivers/staging/greybus/Documentation/firmware/firmware.c
new file mode 100644
index 000000000000..3b35ef6d4adb
--- /dev/null
+++ b/drivers/staging/greybus/Documentation/firmware/firmware.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Sample code to test firmware-management protocol
+ *
+ * Copyright(c) 2016 Google Inc. All rights reserved.
+ * Copyright(c) 2016 Linaro Ltd. All rights reserved.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "../../greybus_firmware.h"
+
+#define FW_DEV_DEFAULT		"/dev/gb-fw-mgmt-0"
+#define FW_TAG_INT_DEFAULT	"s3f"
+#define FW_TAG_BCND_DEFAULT	"bf_01"
+#define FW_UPDATE_TYPE_DEFAULT	0
+#define FW_TIMEOUT_DEFAULT	10000
+
+static const char *firmware_tag;
+static const char *fwdev = FW_DEV_DEFAULT;
+static unsigned int fw_update_type = FW_UPDATE_TYPE_DEFAULT;
+static unsigned int fw_timeout = FW_TIMEOUT_DEFAULT;
+
+static struct fw_mgmt_ioc_get_intf_version intf_fw_info;
+static struct fw_mgmt_ioc_get_backend_version backend_fw_info;
+static struct fw_mgmt_ioc_intf_load_and_validate intf_load;
+static struct fw_mgmt_ioc_backend_fw_update backend_update;
+
+static void usage(void)
+{
+	printf("\nUsage: ./firmware <gb-fw-mgmt-X (default: gb-fw-mgmt-0)> <interface: 0, backend: 1 (default: 0)> <firmware-tag> (default: \"s3f\"/\"bf_01\") <timeout (default: 10000 ms)>\n");
+}
+
+static int update_intf_firmware(int fd)
+{
+	int ret;
+
+	/* Get Interface Firmware Version */
+	printf("Get Interface Firmware Version\n");
+
+	ret = ioctl(fd, FW_MGMT_IOC_GET_INTF_FW, &intf_fw_info);
+	if (ret < 0) {
+		printf("Failed to get interface firmware version: %s (%d)\n",
+		       fwdev, ret);
+		return -1;
+	}
+
+	printf("Interface Firmware tag (%s), major (%d), minor (%d)\n",
+	       intf_fw_info.firmware_tag, intf_fw_info.major,
+		intf_fw_info.minor);
+
+	/* Try Interface Firmware load over Unipro */
+	printf("Loading Interface Firmware\n");
+
+	intf_load.load_method = GB_FW_U_LOAD_METHOD_UNIPRO;
+	intf_load.status = 0;
+	intf_load.major = 0;
+	intf_load.minor = 0;
+
+	strncpy((char *)&intf_load.firmware_tag, firmware_tag,
+		GB_FIRMWARE_U_TAG_MAX_SIZE);
+
+	ret = ioctl(fd, FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE, &intf_load);
+	if (ret < 0) {
+		printf("Failed to load interface firmware: %s (%d)\n", fwdev,
+		       ret);
+		return -1;
+	}
+
+	if (intf_load.status != GB_FW_U_LOAD_STATUS_VALIDATED &&
+	    intf_load.status != GB_FW_U_LOAD_STATUS_UNVALIDATED) {
+		printf("Load status says loading failed: %d\n",
+		       intf_load.status);
+		return -1;
+	}
+
+	printf("Interface Firmware (%s) Load done: major: %d, minor: %d, status: %d\n",
+	       firmware_tag, intf_load.major, intf_load.minor,
+	       intf_load.status);
+
+	/* Initiate Mode-switch to the newly loaded firmware */
+	printf("Initiate Mode switch\n");
+
+	ret = ioctl(fd, FW_MGMT_IOC_MODE_SWITCH);
+	if (ret < 0)
+		printf("Failed to initiate mode-switch (%d)\n", ret);
+
+	return ret;
+}
+
+static int update_backend_firmware(int fd)
+{
+	int ret;
+
+	/* Get Backend Firmware Version */
+	printf("Getting Backend Firmware Version\n");
+
+	strncpy((char *)&backend_fw_info.firmware_tag, firmware_tag,
+		GB_FIRMWARE_U_TAG_MAX_SIZE);
+
+retry_fw_version:
+	ret = ioctl(fd, FW_MGMT_IOC_GET_BACKEND_FW, &backend_fw_info);
+	if (ret < 0) {
+		printf("Failed to get backend firmware version: %s (%d)\n",
+		       fwdev, ret);
+		return -1;
+	}
+
+	printf("Backend Firmware tag (%s), major (%d), minor (%d), status (%d)\n",
+	       backend_fw_info.firmware_tag, backend_fw_info.major,
+		backend_fw_info.minor, backend_fw_info.status);
+
+	if (backend_fw_info.status == GB_FW_U_BACKEND_VERSION_STATUS_RETRY)
+		goto retry_fw_version;
+
+	if ((backend_fw_info.status != GB_FW_U_BACKEND_VERSION_STATUS_SUCCESS) &&
+	    (backend_fw_info.status != GB_FW_U_BACKEND_VERSION_STATUS_NOT_AVAILABLE)) {
+		printf("Failed to get backend firmware version: %s (%d)\n",
+		       fwdev, backend_fw_info.status);
+		return -1;
+	}
+
+	/* Try Backend Firmware Update over Unipro */
+	printf("Updating Backend Firmware\n");
+
+	strncpy((char *)&backend_update.firmware_tag, firmware_tag,
+		GB_FIRMWARE_U_TAG_MAX_SIZE);
+
+retry_fw_update:
+	backend_update.status = 0;
+
+	ret = ioctl(fd, FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE, &backend_update);
+	if (ret < 0) {
+		printf("Failed to load backend firmware: %s (%d)\n", fwdev, ret);
+		return -1;
+	}
+
+	if (backend_update.status == GB_FW_U_BACKEND_FW_STATUS_RETRY) {
+		printf("Retrying firmware update: %d\n", backend_update.status);
+		goto retry_fw_update;
+	}
+
+	if (backend_update.status != GB_FW_U_BACKEND_FW_STATUS_SUCCESS) {
+		printf("Load status says loading failed: %d\n",
+		       backend_update.status);
+	} else {
+		printf("Backend Firmware (%s) Load done: status: %d\n",
+		       firmware_tag, backend_update.status);
+	}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int fd, ret;
+	char *endptr;
+
+	if (argc > 1 &&
+	    (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))) {
+		usage();
+		return -1;
+	}
+
+	if (argc > 1)
+		fwdev = argv[1];
+
+	if (argc > 2)
+		fw_update_type = strtoul(argv[2], &endptr, 10);
+
+	if (argc > 3)
+		firmware_tag = argv[3];
+	else if (!fw_update_type)
+		firmware_tag = FW_TAG_INT_DEFAULT;
+	else
+		firmware_tag = FW_TAG_BCND_DEFAULT;
+
+	if (argc > 4)
+		fw_timeout = strtoul(argv[4], &endptr, 10);
+
+	printf("Trying Firmware update: fwdev: %s, type: %s, tag: %s, timeout: %u\n",
+	       fwdev, fw_update_type == 0 ? "interface" : "backend",
+		firmware_tag, fw_timeout);
+
+	printf("Opening %s firmware management device\n", fwdev);
+
+	fd = open(fwdev, O_RDWR);
+	if (fd < 0) {
+		printf("Failed to open: %s\n", fwdev);
+		return -1;
+	}
+
+	/* Set Timeout */
+	printf("Setting timeout to %u ms\n", fw_timeout);
+
+	ret = ioctl(fd, FW_MGMT_IOC_SET_TIMEOUT_MS, &fw_timeout);
+	if (ret < 0) {
+		printf("Failed to set timeout: %s (%d)\n", fwdev, ret);
+		ret = -1;
+		goto close_fd;
+	}
+
+	if (!fw_update_type)
+		ret = update_intf_firmware(fd);
+	else
+		ret = update_backend_firmware(fd);
+
+close_fd:
+	close(fd);
+
+	return ret;
+}
diff --git a/drivers/staging/greybus/Documentation/sysfs-bus-greybus b/drivers/staging/greybus/Documentation/sysfs-bus-greybus
new file mode 100644
index 000000000000..2e998966cbe1
--- /dev/null
+++ b/drivers/staging/greybus/Documentation/sysfs-bus-greybus
@@ -0,0 +1,275 @@
+What:		/sys/bus/greybus/devices/greybusN
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The "root" greybus device for the Greybus device tree, or bus,
+		where N is a dynamically assigned 1-based id.
+
+What:		/sys/bus/greybus/devices/greybusN/bus_id
+Date:		April 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The ID of the "root" greybus device, or bus.
+
+What:		/sys/bus/greybus/devices/N-M
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		A Module M on the bus N, where M is the 1-byte interface
+		ID of the module's primary interface.
+
+What:		/sys/bus/greybus/devices/N-M/eject
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Writing a non-zero argument to this attibute disables the
+		module's interfaces before physically ejecting it.
+
+What:		/sys/bus/greybus/devices/N-M/module_id
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The ID of a Greybus module, corresponding to the ID of its
+		primary interface.
+
+What:		/sys/bus/greybus/devices/N-M/num_interfaces
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The number of interfaces of a module.
+
+What:		/sys/bus/greybus/devices/N-M.I
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		An Interface I on the bus N and module N-M, where I is the
+		1-byte interface ID.
+
+What:		/sys/bus/greybus/devices/N-M.I/current_now
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Current measurement of the interface in microamps (uA)
+
+What:		/sys/bus/greybus/devices/N-M.I/ddbl1_manufacturer_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Unipro Device Descriptor Block Level 1 manufacturer ID for the
+		greybus Interface.
+
+What:		/sys/bus/greybus/devices/N-M.I/ddbl1_product_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Unipro Device Descriptor Block Level 1 product ID for the
+		greybus Interface.
+
+What:		/sys/bus/greybus/devices/N-M.I/interface_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The ID of a Greybus interface.
+
+What:		/sys/bus/greybus/devices/N-M.I/interface_type
+Date:		June 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The type of a Greybus interface; "dummy", "unipro", "greybus",
+		or "unknown".
+
+What:		/sys/bus/greybus/devices/N-M.I/power_now
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Power measurement of the interface in microwatts (uW)
+
+What:		/sys/bus/greybus/devices/N-M.I/power_state
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		This file reflects the power state of a Greybus interface. If
+		the value read from it is "on", then power is currently
+		supplied to the interface. Otherwise it will read "off" and
+		power is currently not supplied to the interface.
+
+		If the value read is "off", then writing "on" (or '1', 'y',
+		'Y') to this file will enable power to the interface and an
+		attempt to boot and possibly enumerate it will be made. Note
+		that on errors, the interface will again be powered down.
+
+		If the value read is "on", then writing "off" (or '0', 'n',
+		'N') to this file will power down the interface.
+
+What:		/sys/bus/greybus/devices/N-M.I/product_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Product ID of a Greybus interface.
+
+What:		/sys/bus/greybus/devices/N-M.I/serial_number
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Serial Number of the Greybus interface, represented by a 64 bit
+		hexadecimal number.
+
+What:		/sys/bus/greybus/devices/N-M.I/vendor_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Vendor ID of a Greybus interface.
+
+What:		/sys/bus/greybus/devices/N-M.I/voltage_now
+Date:		March 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Voltage measurement of the interface in microvolts (uV)
+
+What:		/sys/bus/greybus/devices/N-M.I.ctrl
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Abstract control device for interface I that represents the
+		current mode of an enumerated Greybus interface.
+
+What:		/sys/bus/greybus/devices/N-M.I.ctrl/product_string
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Product ID string of a Greybus interface.
+
+What:		/sys/bus/greybus/devices/N-M.I.ctrl/vendor_string
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Vendor ID string of a Greybus interface.
+
+What:		/sys/bus/greybus/devices/N-M.I.B
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		A bundle B on the Interface I, B is replaced by a 1-byte
+		number representing the bundle.
+
+What:		/sys/bus/greybus/devices/N-M.I.B/bundle_class
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The greybus class of the bundle B.
+
+What:		/sys/bus/greybus/devices/N-M.I.B/bundle_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The interface-unique id of the bundle B.
+
+What:		/sys/bus/greybus/devices/N-M.I.B/gpbX
+Date:		April 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The General Purpose Bridged PHY device of the bundle B,
+		where X is a dynamically assigned 0-based id.
+
+What:		/sys/bus/greybus/devices/N-M.I.B/state
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		A bundle has a state that is managed by the userspace
+		Endo process.  This file allows that Endo to signal
+		other Android HALs that the state of the bundle has
+		changed to a specific value.  When written to, any
+		process watching the file will be woken up, and the new
+		value can be read. It's a "poor-man's IPC", yes, but
+		simplifies the Android userspace code immensely.
+
+What:		/sys/bus/greybus/devices/N-svc
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The singleton SVC device of bus N.
+
+What:		/sys/bus/greybus/devices/N-svc/ap_intf_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The AP interface ID, a 1-byte non-zero integer which
+		defines the position of the AP module on the frame.
+		The interface positions are defined in the GMP
+		Module Developer Kit.
+
+What:		/sys/bus/greybus/devices/N-svc/endo_id
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The Endo ID, which is a 2-byte hexadecimal value
+		defined by the Endo layout scheme, documented in
+		the GMP Module Developer Kit.
+
+What:		/sys/bus/greybus/devices/N-svc/intf_eject
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		Write the number of the interface that you wish to
+		forcibly eject from the system.
+
+What:		/sys/bus/greybus/devices/N-svc/version
+Date:		October 2015
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		The version number of the firmware in the SVC device.
+
+What:		/sys/bus/greybus/devices/N-svc/watchdog
+Date:		October 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		If the SVC watchdog is enabled or not.  Writing 0 to this
+		file will disable the watchdog, writing 1 will enable it.
+
+What:		/sys/bus/greybus/devices/N-svc/watchdog_action
+Date:		July 2016
+KernelVersion:	4.XX
+Contact:	Greg Kroah-Hartman <greg@kroah.com>
+Description:
+		This attribute indicates the action to be performed upon SVC
+		watchdog bite.
+
+		The action can be one of the "reset" or "panic". Writing either
+		one of the "reset" or "panic" will change the behavior of SVC
+		watchdog bite. Default value is "reset".
+
+		"reset" means the UniPro subsystem is to be reset.
+
+		"panic" means SVC watchdog bite will cause kernel to panic.
diff --git a/drivers/staging/greybus/Kconfig b/drivers/staging/greybus/Kconfig
new file mode 100644
index 000000000000..1e745a8d439c
--- /dev/null
+++ b/drivers/staging/greybus/Kconfig
@@ -0,0 +1,216 @@
+# SPDX-License-Identifier: GPL-2.0
+if GREYBUS
+
+config GREYBUS_AUDIO
+	tristate "Greybus Audio Class driver"
+	depends on SOUND && SND_SOC
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Audio Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-audio.ko
+
+config GREYBUS_AUDIO_APB_CODEC
+	tristate "Greybus APBridge Audio codec driver"
+	depends on SND_SOC && GREYBUS_AUDIO
+	help
+	  Select this option if you have a Toshiba APB device that has I2S
+          ports and acts as a Greybus "Dummy codec". This device is a
+          bridge from an APB-I2S port to a Unipro network.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-audio-codec.ko
+
+
+config GREYBUS_BOOTROM
+	tristate "Greybus Bootrom Class driver"
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Bootrom Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-bootrom.ko
+
+config GREYBUS_CAMERA
+	tristate "Greybus Camera Class driver"
+	depends on MEDIA_SUPPORT && LEDS_CLASS_FLASH && BROKEN
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Camera Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-camera.ko
+
+config GREYBUS_FIRMWARE
+	tristate "Greybus Firmware Download Class driver"
+	depends on SPI
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Firmware Download Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-firmware.ko
+
+config GREYBUS_HID
+	tristate "Greybus HID Class driver"
+	depends on HID && INPUT
+	help
+	  Select this option if you have a device that follows the
+	  Greybus HID Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-hid.ko
+
+config GREYBUS_LIGHT
+	tristate "Greybus LED Class driver"
+	depends on LEDS_CLASS_FLASH
+	help
+	  Select this option if you have a device that follows the
+	  Greybus LED Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-light.ko
+
+config GREYBUS_LOG
+	tristate "Greybus Debug Log Class driver"
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Debug Log Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-log.ko
+
+config GREYBUS_LOOPBACK
+	tristate "Greybus Loopback Class driver"
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Debug Log Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-log.ko
+
+config GREYBUS_POWER
+	tristate "Greybus Powersupply Class driver"
+	depends on POWER_SUPPLY
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Powersupply Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-power-supply.ko
+
+config GREYBUS_RAW
+	tristate "Greybus Raw Class driver"
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Raw Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-raw.ko
+
+config GREYBUS_VIBRATOR
+	tristate "Greybus Vibrator Motor Class driver"
+	help
+	  Select this option if you have a device that follows the
+	  Greybus Vibrator Motor Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-vibrator.ko
+
+menuconfig GREYBUS_BRIDGED_PHY
+	tristate "Greybus Bridged PHY Class drivers"
+	help
+	  Select this option to pick from a variety of Greybus Bridged
+	  PHY class drivers.  These drivers emulate a number of
+	  different "traditional" busses by tunneling them over Greybus.
+	  Examples of this include serial, SPI, USB, and others.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-phy.ko
+
+if GREYBUS_BRIDGED_PHY
+
+config GREYBUS_GPIO
+	tristate "Greybus GPIO Bridged PHY driver"
+	depends on GPIOLIB
+	select GPIOLIB_IRQCHIP
+	help
+	  Select this option if you have a device that follows the
+	  Greybus GPIO Bridged PHY Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-gpio.ko
+
+config GREYBUS_I2C
+	tristate "Greybus I2C Bridged PHY driver"
+	depends on I2C
+	help
+	  Select this option if you have a device that follows the
+	  Greybus I2C Bridged PHY Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-i2c.ko
+
+config GREYBUS_PWM
+	tristate "Greybus PWM Bridged PHY driver"
+	depends on PWM
+	help
+	  Select this option if you have a device that follows the
+	  Greybus PWM Bridged PHY Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-pwm.ko
+
+config GREYBUS_SDIO
+	tristate "Greybus SDIO Bridged PHY driver"
+	depends on MMC
+	help
+	  Select this option if you have a device that follows the
+	  Greybus SDIO Bridged PHY Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-sdio.ko
+
+config GREYBUS_SPI
+	tristate "Greybus SPI Bridged PHY driver"
+	depends on SPI
+	help
+	  Select this option if you have a device that follows the
+	  Greybus SPI Bridged PHY Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-spi.ko
+
+config GREYBUS_UART
+	tristate "Greybus UART Bridged PHY driver"
+	depends on TTY
+	help
+	  Select this option if you have a device that follows the
+	  Greybus UART Bridged PHY Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-uart.ko
+
+config GREYBUS_USB
+	tristate "Greybus USB Host Bridged PHY driver"
+	depends on USB
+	help
+	  Select this option if you have a device that follows the
+	  Greybus USB Host Bridged PHY Class specification.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-usb.ko
+
+endif	# GREYBUS_BRIDGED_PHY
+
+config GREYBUS_ARCHE
+	tristate "Greybus Arche Platform driver"
+	depends on USB_HSIC_USB3613 || COMPILE_TEST
+	help
+	  Select this option if you have an Arche device.
+
+	  To compile this code as a module, chose M here: the module
+	  will be called gb-arche.ko
+
+endif	# GREYBUS
diff --git a/drivers/staging/greybus/Makefile b/drivers/staging/greybus/Makefile
new file mode 100644
index 000000000000..7c5e89622334
--- /dev/null
+++ b/drivers/staging/greybus/Makefile
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: GPL-2.0
+# needed for trace events
+ccflags-y += -I$(src)
+
+# Greybus class drivers
+gb-bootrom-y		:= bootrom.o
+gb-camera-y		:= camera.o
+gb-firmware-y		:= fw-core.o fw-download.o fw-management.o authentication.o
+gb-spilib-y		:= spilib.o
+gb-hid-y		:= hid.o
+gb-light-y		:= light.o
+gb-log-y		:= log.o
+gb-loopback-y		:= loopback.o
+gb-power-supply-y	:= power_supply.o
+gb-raw-y		:= raw.o
+gb-vibrator-y		:= vibrator.o
+
+obj-$(CONFIG_GREYBUS_BOOTROM)	+= gb-bootrom.o
+obj-$(CONFIG_GREYBUS_CAMERA)	+= gb-camera.o
+obj-$(CONFIG_GREYBUS_FIRMWARE)	+= gb-firmware.o gb-spilib.o
+obj-$(CONFIG_GREYBUS_HID)	+= gb-hid.o
+obj-$(CONFIG_GREYBUS_LIGHT)	+= gb-light.o
+obj-$(CONFIG_GREYBUS_LOG)	+= gb-log.o
+obj-$(CONFIG_GREYBUS_LOOPBACK)	+= gb-loopback.o
+obj-$(CONFIG_GREYBUS_POWER)	+= gb-power-supply.o
+obj-$(CONFIG_GREYBUS_RAW)	+= gb-raw.o
+obj-$(CONFIG_GREYBUS_VIBRATOR)	+= gb-vibrator.o
+
+# Greybus Audio is a bunch of modules
+gb-audio-module-y	:= audio_module.o audio_topology.o
+gb-audio-codec-y	:= audio_codec.o audio_helper.o
+gb-audio-gb-y		:= audio_gb.o
+gb-audio-apbridgea-y	:= audio_apbridgea.o
+gb-audio-manager-y	:= audio_manager.o audio_manager_module.o
+
+# Greybus Audio sysfs helpers can be useful when debugging
+#GB_AUDIO_MANAGER_SYSFS ?= true
+#ifeq ($(GB_AUDIO_MANAGER_SYSFS),true)
+#gb-audio-manager-y += audio_manager_sysfs.o
+#ccflags-y += -DGB_AUDIO_MANAGER_SYSFS
+#endif
+
+obj-$(CONFIG_GREYBUS_AUDIO_APB_CODEC)  	+= gb-audio-codec.o
+obj-$(CONFIG_GREYBUS_AUDIO_APB_CODEC)	+= gb-audio-module.o
+obj-$(CONFIG_GREYBUS_AUDIO)		+= gb-audio-gb.o
+obj-$(CONFIG_GREYBUS_AUDIO)		+= gb-audio-apbridgea.o
+obj-$(CONFIG_GREYBUS_AUDIO)		+= gb-audio-manager.o
+
+
+# Greybus Bridged PHY drivers
+gb-gbphy-y := gbphy.o
+gb-gpio-y := gpio.o
+gb-i2c-y := i2c.o
+gb-pwm-y := pwm.o
+gb-sdio-y := sdio.o
+gb-spi-y := spi.o
+gb-uart-y := uart.o
+gb-usb-y := usb.o
+
+obj-$(CONFIG_GREYBUS_BRIDGED_PHY)	+= gb-gbphy.o
+obj-$(CONFIG_GREYBUS_GPIO)		+= gb-gpio.o
+obj-$(CONFIG_GREYBUS_I2C)		+= gb-i2c.o
+obj-$(CONFIG_GREYBUS_PWM)		+= gb-pwm.o
+obj-$(CONFIG_GREYBUS_SDIO)		+= gb-sdio.o
+obj-$(CONFIG_GREYBUS_SPI)		+= gb-spi.o gb-spilib.o
+obj-$(CONFIG_GREYBUS_UART)		+= gb-uart.o
+obj-$(CONFIG_GREYBUS_USB)		+= gb-usb.o
+
+
+# Greybus Platform driver
+gb-arche-y	:= arche-platform.o arche-apb-ctrl.o
+
+obj-$(CONFIG_GREYBUS_ARCHE)	+= gb-arche.o
diff --git a/drivers/staging/greybus/TODO b/drivers/staging/greybus/TODO
new file mode 100644
index 000000000000..6461e0132fe3
--- /dev/null
+++ b/drivers/staging/greybus/TODO
@@ -0,0 +1,5 @@
+* Convert all uses of the old GPIO API from <linux/gpio.h> to the
+  GPIO descriptor API in <linux/gpio/consumer.h> and look up GPIO
+  lines from device tree or ACPI.
+* Make pwm.c use the struct pwm_ops::apply instead of ::config, ::set_polarity,
+  ::enable and ::disable.
diff --git a/drivers/staging/greybus/arche-apb-ctrl.c b/drivers/staging/greybus/arche-apb-ctrl.c
new file mode 100644
index 000000000000..90ab32638d3f
--- /dev/null
+++ b/drivers/staging/greybus/arche-apb-ctrl.c
@@ -0,0 +1,490 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Arche Platform driver to control APB.
+ *
+ * Copyright 2014-2015 Google Inc.
+ * Copyright 2014-2015 Linaro Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/of_irq.h>
+#include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spinlock.h>
+#include "arche_platform.h"
+
+static void apb_bootret_deassert(struct device *dev);
+
+struct arche_apb_ctrl_drvdata {
+	/* Control GPIO signals to and from AP <=> AP Bridges */
+	struct gpio_desc *resetn;
+	struct gpio_desc *boot_ret;
+	struct gpio_desc *pwroff;
+	struct gpio_desc *wake_in;
+	struct gpio_desc *wake_out;
+	struct gpio_desc *pwrdn;
+
+	enum arche_platform_state state;
+	bool init_disabled;
+
+	struct regulator *vcore;
+	struct regulator *vio;
+
+	struct gpio_desc *clk_en;
+	struct clk *clk;
+
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *pin_default;
+
+	/* V2: SPI Bus control  */
+	struct gpio_desc *spi_en;
+	bool spi_en_polarity_high;
+};
+
+/*
+ * Note that these low level api's are active high
+ */
+static inline void deassert_reset(struct gpio_desc *gpio)
+{
+	gpiod_set_raw_value(gpio, 1);
+}
+
+static inline void assert_reset(struct gpio_desc *gpio)
+{
+	gpiod_set_raw_value(gpio, 0);
+}
+
+/*
+ * Note: Please do not modify the below sequence, as it is as per the spec
+ */
+static int coldboot_seq(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
+	int ret;
+
+	if (apb->init_disabled ||
+	    apb->state == ARCHE_PLATFORM_STATE_ACTIVE)
+		return 0;
+
+	/* Hold APB in reset state */
+	assert_reset(apb->resetn);
+
+	if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && apb->spi_en)
+		devm_gpiod_put(dev, apb->spi_en);
+
+	/* Enable power to APB */
+	if (!IS_ERR(apb->vcore)) {
+		ret = regulator_enable(apb->vcore);
+		if (ret) {
+			dev_err(dev, "failed to enable core regulator\n");
+			return ret;
+		}
+	}
+
+	if (!IS_ERR(apb->vio)) {
+		ret = regulator_enable(apb->vio);
+		if (ret) {
+			dev_err(dev, "failed to enable IO regulator\n");
+			return ret;
+		}
+	}
+
+	apb_bootret_deassert(dev);
+
+	/* On DB3 clock was not mandatory */
+	if (apb->clk_en)
+		gpiod_set_value(apb->clk_en, 1);
+
+	usleep_range(100, 200);
+
+	/* deassert reset to APB : Active-low signal */
+	deassert_reset(apb->resetn);
+
+	apb->state = ARCHE_PLATFORM_STATE_ACTIVE;
+
+	return 0;
+}
+
+static int fw_flashing_seq(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
+	int ret;
+
+	if (apb->init_disabled ||
+	    apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING)
+		return 0;
+
+	ret = regulator_enable(apb->vcore);
+	if (ret) {
+		dev_err(dev, "failed to enable core regulator\n");
+		return ret;
+	}
+
+	ret = regulator_enable(apb->vio);
+	if (ret) {
+		dev_err(dev, "failed to enable IO regulator\n");
+		return ret;
+	}
+
+	if (apb->spi_en) {
+		unsigned long flags;
+
+		if (apb->spi_en_polarity_high)
+			flags = GPIOD_OUT_HIGH;
+		else
+			flags = GPIOD_OUT_LOW;
+
+		apb->spi_en = devm_gpiod_get(dev, "spi-en", flags);
+		if (IS_ERR(apb->spi_en)) {
+			ret = PTR_ERR(apb->spi_en);
+			dev_err(dev, "Failed requesting SPI bus en GPIO: %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	/* for flashing device should be in reset state */
+	assert_reset(apb->resetn);
+	apb->state = ARCHE_PLATFORM_STATE_FW_FLASHING;
+
+	return 0;
+}
+
+static int standby_boot_seq(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
+
+	if (apb->init_disabled)
+		return 0;
+
+	/*
+	 * Even if it is in OFF state,
+	 * then we do not want to change the state
+	 */
+	if (apb->state == ARCHE_PLATFORM_STATE_STANDBY ||
+	    apb->state == ARCHE_PLATFORM_STATE_OFF)
+		return 0;
+
+	if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && apb->spi_en)
+		devm_gpiod_put(dev, apb->spi_en);
+
+	/*
+	 * As per WDM spec, do nothing
+	 *
+	 * Pasted from WDM spec,
+	 *  - A falling edge on POWEROFF_L is detected (a)
+	 *  - WDM enters standby mode, but no output signals are changed
+	 */
+
+	/* TODO: POWEROFF_L is input to WDM module  */
+	apb->state = ARCHE_PLATFORM_STATE_STANDBY;
+	return 0;
+}
+
+static void poweroff_seq(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
+
+	if (apb->init_disabled || apb->state == ARCHE_PLATFORM_STATE_OFF)
+		return;
+
+	if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && apb->spi_en)
+		devm_gpiod_put(dev, apb->spi_en);
+
+	/* disable the clock */
+	if (apb->clk_en)
+		gpiod_set_value(apb->clk_en, 0);
+
+	if (!IS_ERR(apb->vcore) && regulator_is_enabled(apb->vcore) > 0)
+		regulator_disable(apb->vcore);
+
+	if (!IS_ERR(apb->vio) && regulator_is_enabled(apb->vio) > 0)
+		regulator_disable(apb->vio);
+
+	/* As part of exit, put APB back in reset state */
+	assert_reset(apb->resetn);
+	apb->state = ARCHE_PLATFORM_STATE_OFF;
+
+	/* TODO: May have to send an event to SVC about this exit */
+}
+
+static void apb_bootret_deassert(struct device *dev)
+{
+	struct arche_apb_ctrl_drvdata *apb = dev_get_drvdata(dev);
+
+	gpiod_set_value(apb->boot_ret, 0);
+}
+
+int apb_ctrl_coldboot(struct device *dev)
+{
+	return coldboot_seq(to_platform_device(dev));
+}
+
+int apb_ctrl_fw_flashing(struct device *dev)
+{
+	return fw_flashing_seq(to_platform_device(dev));
+}
+
+int apb_ctrl_standby_boot(struct device *dev)
+{
+	return standby_boot_seq(to_platform_device(dev));
+}
+
+void apb_ctrl_poweroff(struct device *dev)
+{
+	poweroff_seq(to_platform_device(dev));
+}
+
+static ssize_t state_store(struct device *dev,
+			   struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev);
+	int ret = 0;
+	bool is_disabled;
+
+	if (sysfs_streq(buf, "off")) {
+		if (apb->state == ARCHE_PLATFORM_STATE_OFF)
+			return count;
+
+		poweroff_seq(pdev);
+	} else if (sysfs_streq(buf, "active")) {
+		if (apb->state == ARCHE_PLATFORM_STATE_ACTIVE)
+			return count;
+
+		poweroff_seq(pdev);
+		is_disabled = apb->init_disabled;
+		apb->init_disabled = false;
+		ret = coldboot_seq(pdev);
+		if (ret)
+			apb->init_disabled = is_disabled;
+	} else if (sysfs_streq(buf, "standby")) {
+		if (apb->state == ARCHE_PLATFORM_STATE_STANDBY)
+			return count;
+
+		ret = standby_boot_seq(pdev);
+	} else if (sysfs_streq(buf, "fw_flashing")) {
+		if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING)
+			return count;
+
+		/*
+		 * First we want to make sure we power off everything
+		 * and then enter FW flashing state
+		 */
+		poweroff_seq(pdev);
+		ret = fw_flashing_seq(pdev);
+	} else {
+		dev_err(dev, "unknown state\n");
+		ret = -EINVAL;
+	}
+
+	return ret ? ret : count;
+}
+
+static ssize_t state_show(struct device *dev,
+			  struct device_attribute *attr, char *buf)
+{
+	struct arche_apb_ctrl_drvdata *apb = dev_get_drvdata(dev);
+
+	switch (apb->state) {
+	case ARCHE_PLATFORM_STATE_OFF:
+		return sprintf(buf, "off%s\n",
+				apb->init_disabled ? ",disabled" : "");
+	case ARCHE_PLATFORM_STATE_ACTIVE:
+		return sprintf(buf, "active\n");
+	case ARCHE_PLATFORM_STATE_STANDBY:
+		return sprintf(buf, "standby\n");
+	case ARCHE_PLATFORM_STATE_FW_FLASHING:
+		return sprintf(buf, "fw_flashing\n");
+	default:
+		return sprintf(buf, "unknown state\n");
+	}
+}
+
+static DEVICE_ATTR_RW(state);
+
+static int apb_ctrl_get_devtree_data(struct platform_device *pdev,
+				     struct arche_apb_ctrl_drvdata *apb)
+{
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	apb->resetn = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+	if (IS_ERR(apb->resetn)) {
+		ret = PTR_ERR(apb->resetn);
+		dev_err(dev, "Failed requesting reset GPIO: %d\n", ret);
+		return ret;
+	}
+
+	apb->boot_ret = devm_gpiod_get(dev, "boot-ret", GPIOD_OUT_LOW);
+	if (IS_ERR(apb->boot_ret)) {
+		ret = PTR_ERR(apb->boot_ret);
+		dev_err(dev, "Failed requesting bootret GPIO: %d\n", ret);
+		return ret;
+	}
+
+	/* It's not mandatory to support power management interface */
+	apb->pwroff = devm_gpiod_get_optional(dev, "pwr-off", GPIOD_IN);
+	if (IS_ERR(apb->pwroff)) {
+		ret = PTR_ERR(apb->pwroff);
+		dev_err(dev, "Failed requesting pwroff_n GPIO: %d\n", ret);
+		return ret;
+	}
+
+	/* Do not make clock mandatory as of now (for DB3) */
+	apb->clk_en = devm_gpiod_get_optional(dev, "clock-en", GPIOD_OUT_LOW);
+	if (IS_ERR(apb->clk_en)) {
+		ret = PTR_ERR(apb->clk_en);
+		dev_err(dev, "Failed requesting APB clock en GPIO: %d\n", ret);
+		return ret;
+	}
+
+	apb->pwrdn = devm_gpiod_get(dev, "pwr-down", GPIOD_OUT_LOW);
+	if (IS_ERR(apb->pwrdn)) {
+		ret = PTR_ERR(apb->pwrdn);
+		dev_warn(dev, "Failed requesting power down GPIO: %d\n", ret);
+		return ret;
+	}
+
+	/* Regulators are optional, as we may have fixed supply coming in */
+	apb->vcore = devm_regulator_get(dev, "vcore");
+	if (IS_ERR(apb->vcore))
+		dev_warn(dev, "no core regulator found\n");
+
+	apb->vio = devm_regulator_get(dev, "vio");
+	if (IS_ERR(apb->vio))
+		dev_warn(dev, "no IO regulator found\n");
+
+	apb->pinctrl = devm_pinctrl_get(&pdev->dev);
+	if (IS_ERR(apb->pinctrl)) {
+		dev_err(&pdev->dev, "could not get pinctrl handle\n");
+		return PTR_ERR(apb->pinctrl);
+	}
+	apb->pin_default = pinctrl_lookup_state(apb->pinctrl, "default");
+	if (IS_ERR(apb->pin_default)) {
+		dev_err(&pdev->dev, "could not get default pin state\n");
+		return PTR_ERR(apb->pin_default);
+	}
+
+	/* Only applicable for platform >= V2 */
+	if (of_property_read_bool(pdev->dev.of_node, "gb,spi-en-active-high"))
+		apb->spi_en_polarity_high = true;
+
+	return 0;
+}
+
+static int arche_apb_ctrl_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct arche_apb_ctrl_drvdata *apb;
+	struct device *dev = &pdev->dev;
+
+	apb = devm_kzalloc(&pdev->dev, sizeof(*apb), GFP_KERNEL);
+	if (!apb)
+		return -ENOMEM;
+
+	ret = apb_ctrl_get_devtree_data(pdev, apb);
+	if (ret) {
+		dev_err(dev, "failed to get apb devicetree data %d\n", ret);
+		return ret;
+	}
+
+	/* Initially set APB to OFF state */
+	apb->state = ARCHE_PLATFORM_STATE_OFF;
+	/* Check whether device needs to be enabled on boot */
+	if (of_property_read_bool(pdev->dev.of_node, "arche,init-disable"))
+		apb->init_disabled = true;
+
+	platform_set_drvdata(pdev, apb);
+
+	/* Create sysfs interface to allow user to change state dynamically */
+	ret = device_create_file(dev, &dev_attr_state);
+	if (ret) {
+		dev_err(dev, "failed to create state file in sysfs\n");
+		return ret;
+	}
+
+	dev_info(&pdev->dev, "Device registered successfully\n");
+	return 0;
+}
+
+static void arche_apb_ctrl_remove(struct platform_device *pdev)
+{
+	device_remove_file(&pdev->dev, &dev_attr_state);
+	poweroff_seq(pdev);
+	platform_set_drvdata(pdev, NULL);
+}
+
+static int __maybe_unused arche_apb_ctrl_suspend(struct device *dev)
+{
+	/*
+	 * If timing profile permits, we may shutdown bridge
+	 * completely
+	 *
+	 * TODO: sequence ??
+	 *
+	 * Also, need to make sure we meet precondition for unipro suspend
+	 * Precondition: Definition ???
+	 */
+	return 0;
+}
+
+static int __maybe_unused arche_apb_ctrl_resume(struct device *dev)
+{
+	/*
+	 * At least for ES2 we have to meet the delay requirement between
+	 * unipro switch and AP bridge init, depending on whether bridge is in
+	 * OFF state or standby state.
+	 *
+	 * Based on whether bridge is in standby or OFF state we may have to
+	 * assert multiple signals. Please refer to WDM spec, for more info.
+	 *
+	 */
+	return 0;
+}
+
+static void arche_apb_ctrl_shutdown(struct platform_device *pdev)
+{
+	apb_ctrl_poweroff(&pdev->dev);
+}
+
+static SIMPLE_DEV_PM_OPS(arche_apb_ctrl_pm_ops, arche_apb_ctrl_suspend,
+			 arche_apb_ctrl_resume);
+
+static const struct of_device_id arche_apb_ctrl_of_match[] = {
+	{ .compatible = "usbffff,2", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, arche_apb_ctrl_of_match);
+
+static struct platform_driver arche_apb_ctrl_device_driver = {
+	.probe		= arche_apb_ctrl_probe,
+	.remove		= arche_apb_ctrl_remove,
+	.shutdown	= arche_apb_ctrl_shutdown,
+	.driver		= {
+		.name	= "arche-apb-ctrl",
+		.pm	= &arche_apb_ctrl_pm_ops,
+		.of_match_table = arche_apb_ctrl_of_match,
+	}
+};
+
+int __init arche_apb_init(void)
+{
+	return platform_driver_register(&arche_apb_ctrl_device_driver);
+}
+
+void __exit arche_apb_exit(void)
+{
+	platform_driver_unregister(&arche_apb_ctrl_device_driver);
+}
diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
new file mode 100644
index 000000000000..d48464390f58
--- /dev/null
+++ b/drivers/staging/greybus/arche-platform.c
@@ -0,0 +1,660 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Arche Platform driver to enable Unipro link.
+ *
+ * Copyright 2014-2015 Google Inc.
+ * Copyright 2014-2015 Linaro Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/suspend.h>
+#include <linux/time.h>
+#include <linux/greybus.h>
+#include <linux/of.h>
+#include "arche_platform.h"
+
+#if IS_ENABLED(CONFIG_USB_HSIC_USB3613)
+#include <linux/usb/usb3613.h>
+#else
+static inline int usb3613_hub_mode_ctrl(bool unused)
+{
+	return 0;
+}
+#endif
+
+#define WD_COLDBOOT_PULSE_WIDTH_MS	30
+
+enum svc_wakedetect_state {
+	WD_STATE_IDLE,			/* Default state = pulled high/low */
+	WD_STATE_BOOT_INIT,		/* WD = falling edge (low) */
+	WD_STATE_COLDBOOT_TRIG,		/* WD = rising edge (high), > 30msec */
+	WD_STATE_STANDBYBOOT_TRIG,	/* As of now not used ?? */
+	WD_STATE_COLDBOOT_START,	/* Cold boot process started */
+	WD_STATE_STANDBYBOOT_START,	/* Not used */
+};
+
+struct arche_platform_drvdata {
+	/* Control GPIO signals to and from AP <=> SVC */
+	struct gpio_desc *svc_reset;
+	bool is_reset_act_hi;
+	struct gpio_desc *svc_sysboot;
+	struct gpio_desc *wake_detect; /* bi-dir,maps to WAKE_MOD & WAKE_FRAME signals */
+
+	enum arche_platform_state state;
+
+	struct gpio_desc *svc_refclk_req;
+	struct clk *svc_ref_clk;
+
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *pin_default;
+
+	int num_apbs;
+
+	enum svc_wakedetect_state wake_detect_state;
+	int wake_detect_irq;
+	spinlock_t wake_lock;			/* Protect wake_detect_state */
+	struct mutex platform_state_mutex;	/* Protect state */
+	unsigned long wake_detect_start;
+	struct notifier_block pm_notifier;
+
+	struct device *dev;
+};
+
+/* Requires calling context to hold arche_pdata->platform_state_mutex */
+static void arche_platform_set_state(struct arche_platform_drvdata *arche_pdata,
+				     enum arche_platform_state state)
+{
+	arche_pdata->state = state;
+}
+
+/* Requires arche_pdata->wake_lock is held by calling context */
+static void arche_platform_set_wake_detect_state(struct arche_platform_drvdata *arche_pdata,
+						 enum svc_wakedetect_state state)
+{
+	arche_pdata->wake_detect_state = state;
+}
+
+static inline void svc_reset_onoff(struct gpio_desc *gpio, bool onoff)
+{
+	gpiod_set_raw_value(gpio, onoff);
+}
+
+static int apb_cold_boot(struct device *dev, void *data)
+{
+	int ret;
+
+	ret = apb_ctrl_coldboot(dev);
+	if (ret)
+		dev_warn(dev, "failed to coldboot\n");
+
+	/*Child nodes are independent, so do not exit coldboot operation */
+	return 0;
+}
+
+static int apb_poweroff(struct device *dev, void *data)
+{
+	apb_ctrl_poweroff(dev);
+
+	/* Enable HUB3613 into HUB mode. */
+	if (usb3613_hub_mode_ctrl(false))
+		dev_warn(dev, "failed to control hub device\n");
+
+	return 0;
+}
+
+static void arche_platform_wd_irq_en(struct arche_platform_drvdata *arche_pdata)
+{
+	/* Enable interrupt here, to read event back from SVC */
+	enable_irq(arche_pdata->wake_detect_irq);
+}
+
+static irqreturn_t arche_platform_wd_irq_thread(int irq, void *devid)
+{
+	struct arche_platform_drvdata *arche_pdata = devid;
+	unsigned long flags;
+
+	spin_lock_irqsave(&arche_pdata->wake_lock, flags);
+	if (arche_pdata->wake_detect_state != WD_STATE_COLDBOOT_TRIG) {
+		/* Something is wrong */
+		spin_unlock_irqrestore(&arche_pdata->wake_lock, flags);
+		return IRQ_HANDLED;
+	}
+
+	arche_platform_set_wake_detect_state(arche_pdata,
+					     WD_STATE_COLDBOOT_START);
+	spin_unlock_irqrestore(&arche_pdata->wake_lock, flags);
+
+	/* It should complete power cycle, so first make sure it is poweroff */
+	device_for_each_child(arche_pdata->dev, NULL, apb_poweroff);
+
+	/* Bring APB out of reset: cold boot sequence */
+	device_for_each_child(arche_pdata->dev, NULL, apb_cold_boot);
+
+	/* Enable HUB3613 into HUB mode. */
+	if (usb3613_hub_mode_ctrl(true))
+		dev_warn(arche_pdata->dev, "failed to control hub device\n");
+
+	spin_lock_irqsave(&arche_pdata->wake_lock, flags);
+	arche_platform_set_wake_detect_state(arche_pdata, WD_STATE_IDLE);
+	spin_unlock_irqrestore(&arche_pdata->wake_lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t arche_platform_wd_irq(int irq, void *devid)
+{
+	struct arche_platform_drvdata *arche_pdata = devid;
+	unsigned long flags;
+
+	spin_lock_irqsave(&arche_pdata->wake_lock, flags);
+
+	if (gpiod_get_value(arche_pdata->wake_detect)) {
+		/* wake/detect rising */
+
+		/*
+		 * If wake/detect line goes high after low, within less than
+		 * 30msec, then standby boot sequence is initiated, which is not
+		 * supported/implemented as of now. So ignore it.
+		 */
+		if (arche_pdata->wake_detect_state == WD_STATE_BOOT_INIT) {
+			if (time_before(jiffies,
+					arche_pdata->wake_detect_start +
+					msecs_to_jiffies(WD_COLDBOOT_PULSE_WIDTH_MS))) {
+				arche_platform_set_wake_detect_state(arche_pdata,
+								     WD_STATE_IDLE);
+			} else {
+				/*
+				 * Check we are not in middle of irq thread
+				 * already
+				 */
+				if (arche_pdata->wake_detect_state !=
+						WD_STATE_COLDBOOT_START) {
+					arche_platform_set_wake_detect_state(arche_pdata,
+									     WD_STATE_COLDBOOT_TRIG);
+					spin_unlock_irqrestore(&arche_pdata->wake_lock,
+							       flags);
+					return IRQ_WAKE_THREAD;
+				}
+			}
+		}
+	} else {
+		/* wake/detect falling */
+		if (arche_pdata->wake_detect_state == WD_STATE_IDLE) {
+			arche_pdata->wake_detect_start = jiffies;
+			/*
+			 * In the beginning, when wake/detect goes low
+			 * (first time), we assume it is meant for coldboot
+			 * and set the flag. If wake/detect line stays low
+			 * beyond 30msec, then it is coldboot else fallback
+			 * to standby boot.
+			 */
+			arche_platform_set_wake_detect_state(arche_pdata,
+							     WD_STATE_BOOT_INIT);
+		}
+	}
+
+	spin_unlock_irqrestore(&arche_pdata->wake_lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Requires arche_pdata->platform_state_mutex to be held
+ */
+static int
+arche_platform_coldboot_seq(struct arche_platform_drvdata *arche_pdata)
+{
+	int ret;
+
+	if (arche_pdata->state == ARCHE_PLATFORM_STATE_ACTIVE)
+		return 0;
+
+	dev_info(arche_pdata->dev, "Booting from cold boot state\n");
+
+	svc_reset_onoff(arche_pdata->svc_reset, arche_pdata->is_reset_act_hi);
+
+	gpiod_set_value(arche_pdata->svc_sysboot, 0);
+	usleep_range(100, 200);
+
+	ret = clk_prepare_enable(arche_pdata->svc_ref_clk);
+	if (ret) {
+		dev_err(arche_pdata->dev, "failed to enable svc_ref_clk: %d\n",
+			ret);
+		return ret;
+	}
+
+	/* bring SVC out of reset */
+	svc_reset_onoff(arche_pdata->svc_reset, !arche_pdata->is_reset_act_hi);
+
+	arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_ACTIVE);
+
+	return 0;
+}
+
+/*
+ * Requires arche_pdata->platform_state_mutex to be held
+ */
+static int
+arche_platform_fw_flashing_seq(struct arche_platform_drvdata *arche_pdata)
+{
+	int ret;
+
+	if (arche_pdata->state == ARCHE_PLATFORM_STATE_FW_FLASHING)
+		return 0;
+
+	dev_info(arche_pdata->dev, "Switching to FW flashing state\n");
+
+	svc_reset_onoff(arche_pdata->svc_reset, arche_pdata->is_reset_act_hi);
+
+	gpiod_set_value(arche_pdata->svc_sysboot, 1);
+
+	usleep_range(100, 200);
+
+	ret = clk_prepare_enable(arche_pdata->svc_ref_clk);
+	if (ret) {
+		dev_err(arche_pdata->dev, "failed to enable svc_ref_clk: %d\n",
+			ret);
+		return ret;
+	}
+
+	svc_reset_onoff(arche_pdata->svc_reset,	!arche_pdata->is_reset_act_hi);
+
+	arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_FW_FLASHING);
+
+	return 0;
+}
+
+/*
+ * Requires arche_pdata->platform_state_mutex to be held
+ */
+static void
+arche_platform_poweroff_seq(struct arche_platform_drvdata *arche_pdata)
+{
+	unsigned long flags;
+
+	if (arche_pdata->state == ARCHE_PLATFORM_STATE_OFF)
+		return;
+
+	/* If in fw_flashing mode, then no need to repeate things again */
+	if (arche_pdata->state != ARCHE_PLATFORM_STATE_FW_FLASHING) {
+		disable_irq(arche_pdata->wake_detect_irq);
+
+		spin_lock_irqsave(&arche_pdata->wake_lock, flags);
+		arche_platform_set_wake_detect_state(arche_pdata,
+						     WD_STATE_IDLE);
+		spin_unlock_irqrestore(&arche_pdata->wake_lock, flags);
+	}
+
+	clk_disable_unprepare(arche_pdata->svc_ref_clk);
+
+	/* As part of exit, put APB back in reset state */
+	svc_reset_onoff(arche_pdata->svc_reset,	arche_pdata->is_reset_act_hi);
+
+	arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_OFF);
+}
+
+static ssize_t state_store(struct device *dev,
+			   struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct arche_platform_drvdata *arche_pdata = dev_get_drvdata(dev);
+	int ret = 0;
+
+	mutex_lock(&arche_pdata->platform_state_mutex);
+
+	if (sysfs_streq(buf, "off")) {
+		if (arche_pdata->state == ARCHE_PLATFORM_STATE_OFF)
+			goto exit;
+
+		/*  If SVC goes down, bring down APB's as well */
+		device_for_each_child(arche_pdata->dev, NULL, apb_poweroff);
+
+		arche_platform_poweroff_seq(arche_pdata);
+
+	} else if (sysfs_streq(buf, "active")) {
+		if (arche_pdata->state == ARCHE_PLATFORM_STATE_ACTIVE)
+			goto exit;
+
+		/* First we want to make sure we power off everything
+		 * and then activate back again
+		 */
+		device_for_each_child(arche_pdata->dev, NULL, apb_poweroff);
+		arche_platform_poweroff_seq(arche_pdata);
+
+		arche_platform_wd_irq_en(arche_pdata);
+		ret = arche_platform_coldboot_seq(arche_pdata);
+		if (ret)
+			goto exit;
+
+	} else if (sysfs_streq(buf, "standby")) {
+		if (arche_pdata->state == ARCHE_PLATFORM_STATE_STANDBY)
+			goto exit;
+
+		dev_warn(arche_pdata->dev, "standby state not supported\n");
+	} else if (sysfs_streq(buf, "fw_flashing")) {
+		if (arche_pdata->state == ARCHE_PLATFORM_STATE_FW_FLASHING)
+			goto exit;
+
+		/*
+		 * Here we only control SVC.
+		 *
+		 * In case of FW_FLASHING mode we do not want to control
+		 * APBs, as in case of V2, SPI bus is shared between both
+		 * the APBs. So let user chose which APB he wants to flash.
+		 */
+		arche_platform_poweroff_seq(arche_pdata);
+
+		ret = arche_platform_fw_flashing_seq(arche_pdata);
+		if (ret)
+			goto exit;
+	} else {
+		dev_err(arche_pdata->dev, "unknown state\n");
+		ret = -EINVAL;
+	}
+
+exit:
+	mutex_unlock(&arche_pdata->platform_state_mutex);
+	return ret ? ret : count;
+}
+
+static ssize_t state_show(struct device *dev,
+			  struct device_attribute *attr, char *buf)
+{
+	struct arche_platform_drvdata *arche_pdata = dev_get_drvdata(dev);
+
+	switch (arche_pdata->state) {
+	case ARCHE_PLATFORM_STATE_OFF:
+		return sprintf(buf, "off\n");
+	case ARCHE_PLATFORM_STATE_ACTIVE:
+		return sprintf(buf, "active\n");
+	case ARCHE_PLATFORM_STATE_STANDBY:
+		return sprintf(buf, "standby\n");
+	case ARCHE_PLATFORM_STATE_FW_FLASHING:
+		return sprintf(buf, "fw_flashing\n");
+	default:
+		return sprintf(buf, "unknown state\n");
+	}
+}
+
+static DEVICE_ATTR_RW(state);
+
+static int arche_platform_pm_notifier(struct notifier_block *notifier,
+				      unsigned long pm_event, void *unused)
+{
+	struct arche_platform_drvdata *arche_pdata =
+		container_of(notifier, struct arche_platform_drvdata,
+			     pm_notifier);
+	int ret = NOTIFY_DONE;
+
+	mutex_lock(&arche_pdata->platform_state_mutex);
+	switch (pm_event) {
+	case PM_SUSPEND_PREPARE:
+		if (arche_pdata->state != ARCHE_PLATFORM_STATE_ACTIVE) {
+			ret = NOTIFY_STOP;
+			break;
+		}
+		device_for_each_child(arche_pdata->dev, NULL, apb_poweroff);
+		arche_platform_poweroff_seq(arche_pdata);
+		break;
+	case PM_POST_SUSPEND:
+		if (arche_pdata->state != ARCHE_PLATFORM_STATE_OFF)
+			break;
+
+		arche_platform_wd_irq_en(arche_pdata);
+		arche_platform_coldboot_seq(arche_pdata);
+		break;
+	default:
+		break;
+	}
+	mutex_unlock(&arche_pdata->platform_state_mutex);
+
+	return ret;
+}
+
+static int arche_platform_probe(struct platform_device *pdev)
+{
+	struct arche_platform_drvdata *arche_pdata;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	int ret;
+	unsigned int flags;
+
+	arche_pdata = devm_kzalloc(&pdev->dev, sizeof(*arche_pdata),
+				   GFP_KERNEL);
+	if (!arche_pdata)
+		return -ENOMEM;
+
+	/* setup svc reset gpio */
+	arche_pdata->is_reset_act_hi = of_property_read_bool(np,
+							     "svc,reset-active-high");
+	if (arche_pdata->is_reset_act_hi)
+		flags = GPIOD_OUT_HIGH;
+	else
+		flags = GPIOD_OUT_LOW;
+
+	arche_pdata->svc_reset = devm_gpiod_get(dev, "svc,reset", flags);
+	if (IS_ERR(arche_pdata->svc_reset)) {
+		ret = PTR_ERR(arche_pdata->svc_reset);
+		dev_err(dev, "failed to request svc-reset GPIO: %d\n", ret);
+		return ret;
+	}
+	arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_OFF);
+
+	arche_pdata->svc_sysboot = devm_gpiod_get(dev, "svc,sysboot",
+						  GPIOD_OUT_LOW);
+	if (IS_ERR(arche_pdata->svc_sysboot)) {
+		ret = PTR_ERR(arche_pdata->svc_sysboot);
+		dev_err(dev, "failed to request sysboot0 GPIO: %d\n", ret);
+		return ret;
+	}
+
+	/* setup the clock request gpio first */
+	arche_pdata->svc_refclk_req = devm_gpiod_get(dev, "svc,refclk-req",
+						     GPIOD_IN);
+	if (IS_ERR(arche_pdata->svc_refclk_req)) {
+		ret = PTR_ERR(arche_pdata->svc_refclk_req);
+		dev_err(dev, "failed to request svc-clk-req GPIO: %d\n", ret);
+		return ret;
+	}
+
+	/* setup refclk2 to follow the pin */
+	arche_pdata->svc_ref_clk = devm_clk_get(dev, "svc_ref_clk");
+	if (IS_ERR(arche_pdata->svc_ref_clk)) {
+		ret = PTR_ERR(arche_pdata->svc_ref_clk);
+		dev_err(dev, "failed to get svc_ref_clk: %d\n", ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, arche_pdata);
+
+	arche_pdata->num_apbs = of_get_child_count(np);
+	dev_dbg(dev, "Number of APB's available - %d\n", arche_pdata->num_apbs);
+
+	arche_pdata->wake_detect = devm_gpiod_get(dev, "svc,wake-detect",
+						  GPIOD_IN);
+	if (IS_ERR(arche_pdata->wake_detect)) {
+		ret = PTR_ERR(arche_pdata->wake_detect);
+		dev_err(dev, "Failed requesting wake_detect GPIO: %d\n", ret);
+		return ret;
+	}
+
+	arche_platform_set_wake_detect_state(arche_pdata, WD_STATE_IDLE);
+
+	arche_pdata->dev = &pdev->dev;
+
+	spin_lock_init(&arche_pdata->wake_lock);
+	mutex_init(&arche_pdata->platform_state_mutex);
+	arche_pdata->wake_detect_irq =
+		gpiod_to_irq(arche_pdata->wake_detect);
+
+	ret = devm_request_threaded_irq(dev, arche_pdata->wake_detect_irq,
+					arche_platform_wd_irq,
+					arche_platform_wd_irq_thread,
+					IRQF_TRIGGER_FALLING |
+					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+					dev_name(dev), arche_pdata);
+	if (ret) {
+		dev_err(dev, "failed to request wake detect IRQ %d\n", ret);
+		return ret;
+	}
+	disable_irq(arche_pdata->wake_detect_irq);
+
+	ret = device_create_file(dev, &dev_attr_state);
+	if (ret) {
+		dev_err(dev, "failed to create state file in sysfs\n");
+		return ret;
+	}
+
+	ret = of_platform_populate(np, NULL, NULL, dev);
+	if (ret) {
+		dev_err(dev, "failed to populate child nodes %d\n", ret);
+		goto err_device_remove;
+	}
+
+	arche_pdata->pm_notifier.notifier_call = arche_platform_pm_notifier;
+	ret = register_pm_notifier(&arche_pdata->pm_notifier);
+
+	if (ret) {
+		dev_err(dev, "failed to register pm notifier %d\n", ret);
+		goto err_device_remove;
+	}
+
+	/* Explicitly power off if requested */
+	if (!of_property_read_bool(pdev->dev.of_node, "arche,init-off")) {
+		mutex_lock(&arche_pdata->platform_state_mutex);
+		ret = arche_platform_coldboot_seq(arche_pdata);
+		if (ret) {
+			dev_err(dev, "Failed to cold boot svc %d\n", ret);
+			goto err_coldboot;
+		}
+		arche_platform_wd_irq_en(arche_pdata);
+		mutex_unlock(&arche_pdata->platform_state_mutex);
+	}
+
+	dev_info(dev, "Device registered successfully\n");
+	return 0;
+
+err_coldboot:
+	mutex_unlock(&arche_pdata->platform_state_mutex);
+err_device_remove:
+	device_remove_file(&pdev->dev, &dev_attr_state);
+	return ret;
+}
+
+static int arche_remove_child(struct device *dev, void *unused)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	platform_device_unregister(pdev);
+
+	return 0;
+}
+
+static void arche_platform_remove(struct platform_device *pdev)
+{
+	struct arche_platform_drvdata *arche_pdata = platform_get_drvdata(pdev);
+
+	unregister_pm_notifier(&arche_pdata->pm_notifier);
+	device_remove_file(&pdev->dev, &dev_attr_state);
+	device_for_each_child(&pdev->dev, NULL, arche_remove_child);
+	arche_platform_poweroff_seq(arche_pdata);
+
+	if (usb3613_hub_mode_ctrl(false))
+		dev_warn(arche_pdata->dev, "failed to control hub device\n");
+}
+
+static __maybe_unused int arche_platform_suspend(struct device *dev)
+{
+	/*
+	 * If timing profile premits, we may shutdown bridge
+	 * completely
+	 *
+	 * TODO: sequence ??
+	 *
+	 * Also, need to make sure we meet precondition for unipro suspend
+	 * Precondition: Definition ???
+	 */
+	return 0;
+}
+
+static __maybe_unused int arche_platform_resume(struct device *dev)
+{
+	/*
+	 * At least for ES2 we have to meet the delay requirement between
+	 * unipro switch and AP bridge init, depending on whether bridge is in
+	 * OFF state or standby state.
+	 *
+	 * Based on whether bridge is in standby or OFF state we may have to
+	 * assert multiple signals. Please refer to WDM spec, for more info.
+	 *
+	 */
+	return 0;
+}
+
+static void arche_platform_shutdown(struct platform_device *pdev)
+{
+	struct arche_platform_drvdata *arche_pdata = platform_get_drvdata(pdev);
+
+	arche_platform_poweroff_seq(arche_pdata);
+
+	usb3613_hub_mode_ctrl(false);
+}
+
+static SIMPLE_DEV_PM_OPS(arche_platform_pm_ops,
+			arche_platform_suspend,
+			arche_platform_resume);
+
+static const struct of_device_id arche_platform_of_match[] = {
+	/* Use PID/VID of SVC device */
+	{ .compatible = "google,arche-platform", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, arche_platform_of_match);
+
+static struct platform_driver arche_platform_device_driver = {
+	.probe		= arche_platform_probe,
+	.remove		= arche_platform_remove,
+	.shutdown	= arche_platform_shutdown,
+	.driver		= {
+		.name	= "arche-platform-ctrl",
+		.pm	= &arche_platform_pm_ops,
+		.of_match_table = arche_platform_of_match,
+	}
+};
+
+static int __init arche_init(void)
+{
+	int retval;
+
+	retval = platform_driver_register(&arche_platform_device_driver);
+	if (retval)
+		return retval;
+
+	retval = arche_apb_init();
+	if (retval)
+		platform_driver_unregister(&arche_platform_device_driver);
+
+	return retval;
+}
+module_init(arche_init);
+
+static void __exit arche_exit(void)
+{
+	arche_apb_exit();
+	platform_driver_unregister(&arche_platform_device_driver);
+}
+module_exit(arche_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Vaibhav Hiremath <vaibhav.hiremath@linaro.org>");
+MODULE_DESCRIPTION("Arche Platform Driver");
diff --git a/drivers/staging/greybus/arche_platform.h b/drivers/staging/greybus/arche_platform.h
new file mode 100644
index 000000000000..9d997f2d6517
--- /dev/null
+++ b/drivers/staging/greybus/arche_platform.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Arche Platform driver to enable Unipro link.
+ *
+ * Copyright 2015-2016 Google Inc.
+ * Copyright 2015-2016 Linaro Ltd.
+ */
+
+#ifndef __ARCHE_PLATFORM_H
+#define __ARCHE_PLATFORM_H
+
+enum arche_platform_state {
+	ARCHE_PLATFORM_STATE_OFF,
+	ARCHE_PLATFORM_STATE_ACTIVE,
+	ARCHE_PLATFORM_STATE_STANDBY,
+	ARCHE_PLATFORM_STATE_FW_FLASHING,
+};
+
+int __init arche_apb_init(void);
+void __exit arche_apb_exit(void);
+
+/* Operational states for the APB device */
+int apb_ctrl_coldboot(struct device *dev);
+int apb_ctrl_fw_flashing(struct device *dev);
+int apb_ctrl_standby_boot(struct device *dev);
+void apb_ctrl_poweroff(struct device *dev);
+
+#endif	/* __ARCHE_PLATFORM_H */
diff --git a/drivers/staging/greybus/audio_apbridgea.c b/drivers/staging/greybus/audio_apbridgea.c
new file mode 100644
index 000000000000..26117e390deb
--- /dev/null
+++ b/drivers/staging/greybus/audio_apbridgea.c
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Audio Device Class Protocol helpers
+ *
+ * Copyright 2015-2016 Google Inc.
+ */
+
+#include <linux/greybus.h>
+#include "audio_apbridgea.h"
+#include "audio_codec.h"
+
+int gb_audio_apbridgea_set_config(struct gb_connection *connection,
+				  __u16 i2s_port, __u32 format, __u32 rate,
+				  __u32 mclk_freq)
+{
+	struct audio_apbridgea_set_config_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_SET_CONFIG;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+	req.format = cpu_to_le32(format);
+	req.rate = cpu_to_le32(rate);
+	req.mclk_freq = cpu_to_le32(mclk_freq);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_config);
+
+int gb_audio_apbridgea_register_cport(struct gb_connection *connection,
+				      __u16 i2s_port, __u16 cportid,
+				      __u8 direction)
+{
+	struct audio_apbridgea_register_cport_request req;
+	int ret;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_REGISTER_CPORT;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+	req.cport = cpu_to_le16(cportid);
+	req.direction = direction;
+
+	ret = gb_pm_runtime_get_sync(connection->bundle);
+	if (ret)
+		return ret;
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_register_cport);
+
+int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection,
+					__u16 i2s_port, __u16 cportid,
+					__u8 direction)
+{
+	struct audio_apbridgea_unregister_cport_request req;
+	int ret;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_UNREGISTER_CPORT;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+	req.cport = cpu_to_le16(cportid);
+	req.direction = direction;
+
+	ret = gb_hd_output(connection->hd, &req, sizeof(req),
+			   GB_APB_REQUEST_AUDIO_CONTROL, true);
+
+	gb_pm_runtime_put_autosuspend(connection->bundle);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_unregister_cport);
+
+int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection,
+					__u16 i2s_port, __u16 size)
+{
+	struct audio_apbridgea_set_tx_data_size_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_SET_TX_DATA_SIZE;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+	req.size = cpu_to_le16(size);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_tx_data_size);
+
+int gb_audio_apbridgea_prepare_tx(struct gb_connection *connection,
+				  __u16 i2s_port)
+{
+	struct audio_apbridgea_prepare_tx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_PREPARE_TX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_prepare_tx);
+
+int gb_audio_apbridgea_start_tx(struct gb_connection *connection,
+				__u16 i2s_port, __u64 timestamp)
+{
+	struct audio_apbridgea_start_tx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_START_TX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+	req.timestamp = cpu_to_le64(timestamp);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_start_tx);
+
+int gb_audio_apbridgea_stop_tx(struct gb_connection *connection, __u16 i2s_port)
+{
+	struct audio_apbridgea_stop_tx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_STOP_TX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_stop_tx);
+
+int gb_audio_apbridgea_shutdown_tx(struct gb_connection *connection,
+				   __u16 i2s_port)
+{
+	struct audio_apbridgea_shutdown_tx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_SHUTDOWN_TX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_shutdown_tx);
+
+int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection,
+					__u16 i2s_port, __u16 size)
+{
+	struct audio_apbridgea_set_rx_data_size_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_SET_RX_DATA_SIZE;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+	req.size = cpu_to_le16(size);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_rx_data_size);
+
+int gb_audio_apbridgea_prepare_rx(struct gb_connection *connection,
+				  __u16 i2s_port)
+{
+	struct audio_apbridgea_prepare_rx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_PREPARE_RX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_prepare_rx);
+
+int gb_audio_apbridgea_start_rx(struct gb_connection *connection,
+				__u16 i2s_port)
+{
+	struct audio_apbridgea_start_rx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_START_RX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_start_rx);
+
+int gb_audio_apbridgea_stop_rx(struct gb_connection *connection, __u16 i2s_port)
+{
+	struct audio_apbridgea_stop_rx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_STOP_RX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_stop_rx);
+
+int gb_audio_apbridgea_shutdown_rx(struct gb_connection *connection,
+				   __u16 i2s_port)
+{
+	struct audio_apbridgea_shutdown_rx_request req;
+
+	req.hdr.type = AUDIO_APBRIDGEA_TYPE_SHUTDOWN_RX;
+	req.hdr.i2s_port = cpu_to_le16(i2s_port);
+
+	return gb_hd_output(connection->hd, &req, sizeof(req),
+			    GB_APB_REQUEST_AUDIO_CONTROL, true);
+}
+EXPORT_SYMBOL_GPL(gb_audio_apbridgea_shutdown_rx);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("greybus:audio-apbridgea");
+MODULE_DESCRIPTION("Greybus Special APBridgeA Audio Protocol library");
+MODULE_AUTHOR("Mark Greer <mgreer@animalcreek.com>");
diff --git a/drivers/staging/greybus/audio_apbridgea.h b/drivers/staging/greybus/audio_apbridgea.h
new file mode 100644
index 000000000000..ab707d310129
--- /dev/null
+++ b/drivers/staging/greybus/audio_apbridgea.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Copyright (c) 2015-2016 Google Inc.
+ */
+/*
+ * This is a special protocol for configuring communication over the
+ * I2S bus between the DSP on the MSM8994 and APBridgeA.  Therefore,
+ * we can predefine several low-level attributes of the communication
+ * because we know that they are supported.  In particular, the following
+ * assumptions are made:
+ *	- there are two channels (i.e., stereo)
+ *	- the low-level protocol is I2S as defined by Philips/NXP
+ *	- the DSP on the MSM8994 is the clock master for MCLK, BCLK, and WCLK
+ *	- WCLK changes on the falling edge of BCLK
+ *	- WCLK low for left channel; high for right channel
+ *	- TX data is sent on the falling edge of BCLK
+ *	- RX data is received/latched on the rising edge of BCLK
+ */
+
+#ifndef __AUDIO_APBRIDGEA_H
+#define __AUDIO_APBRIDGEA_H
+
+#define AUDIO_APBRIDGEA_TYPE_SET_CONFIG			0x01
+#define AUDIO_APBRIDGEA_TYPE_REGISTER_CPORT		0x02
+#define AUDIO_APBRIDGEA_TYPE_UNREGISTER_CPORT		0x03
+#define AUDIO_APBRIDGEA_TYPE_SET_TX_DATA_SIZE		0x04
+							/* 0x05 unused */
+#define AUDIO_APBRIDGEA_TYPE_PREPARE_TX			0x06
+#define AUDIO_APBRIDGEA_TYPE_START_TX			0x07
+#define AUDIO_APBRIDGEA_TYPE_STOP_TX			0x08
+#define AUDIO_APBRIDGEA_TYPE_SHUTDOWN_TX		0x09
+#define AUDIO_APBRIDGEA_TYPE_SET_RX_DATA_SIZE		0x0a
+							/* 0x0b unused */
+#define AUDIO_APBRIDGEA_TYPE_PREPARE_RX			0x0c
+#define AUDIO_APBRIDGEA_TYPE_START_RX			0x0d
+#define AUDIO_APBRIDGEA_TYPE_STOP_RX			0x0e
+#define AUDIO_APBRIDGEA_TYPE_SHUTDOWN_RX		0x0f
+
+#define AUDIO_APBRIDGEA_PCM_FMT_8			BIT(0)
+#define AUDIO_APBRIDGEA_PCM_FMT_16			BIT(1)
+#define AUDIO_APBRIDGEA_PCM_FMT_24			BIT(2)
+#define AUDIO_APBRIDGEA_PCM_FMT_32			BIT(3)
+#define AUDIO_APBRIDGEA_PCM_FMT_64			BIT(4)
+
+#define AUDIO_APBRIDGEA_PCM_RATE_5512			BIT(0)
+#define AUDIO_APBRIDGEA_PCM_RATE_8000			BIT(1)
+#define AUDIO_APBRIDGEA_PCM_RATE_11025			BIT(2)
+#define AUDIO_APBRIDGEA_PCM_RATE_16000			BIT(3)
+#define AUDIO_APBRIDGEA_PCM_RATE_22050			BIT(4)
+#define AUDIO_APBRIDGEA_PCM_RATE_32000			BIT(5)
+#define AUDIO_APBRIDGEA_PCM_RATE_44100			BIT(6)
+#define AUDIO_APBRIDGEA_PCM_RATE_48000			BIT(7)
+#define AUDIO_APBRIDGEA_PCM_RATE_64000			BIT(8)
+#define AUDIO_APBRIDGEA_PCM_RATE_88200			BIT(9)
+#define AUDIO_APBRIDGEA_PCM_RATE_96000			BIT(10)
+#define AUDIO_APBRIDGEA_PCM_RATE_176400			BIT(11)
+#define AUDIO_APBRIDGEA_PCM_RATE_192000			BIT(12)
+
+#define AUDIO_APBRIDGEA_DIRECTION_TX			BIT(0)
+#define AUDIO_APBRIDGEA_DIRECTION_RX			BIT(1)
+
+/* The I2S port is passed in the 'index' parameter of the USB request */
+/* The CPort is passed in the 'value' parameter of the USB request */
+
+struct audio_apbridgea_hdr {
+	__u8	type;
+	__le16	i2s_port;
+} __packed;
+
+struct audio_apbridgea_set_config_request {
+	struct audio_apbridgea_hdr	hdr;
+	__le32				format;	/* AUDIO_APBRIDGEA_PCM_FMT_* */
+	__le32				rate;	/* AUDIO_APBRIDGEA_PCM_RATE_* */
+	__le32				mclk_freq; /* XXX Remove? */
+} __packed;
+
+struct audio_apbridgea_register_cport_request {
+	struct audio_apbridgea_hdr	hdr;
+	__le16				cport;
+	__u8				direction;
+} __packed;
+
+struct audio_apbridgea_unregister_cport_request {
+	struct audio_apbridgea_hdr	hdr;
+	__le16				cport;
+	__u8				direction;
+} __packed;
+
+struct audio_apbridgea_set_tx_data_size_request {
+	struct audio_apbridgea_hdr	hdr;
+	__le16				size;
+} __packed;
+
+struct audio_apbridgea_prepare_tx_request {
+	struct audio_apbridgea_hdr	hdr;
+} __packed;
+
+struct audio_apbridgea_start_tx_request {
+	struct audio_apbridgea_hdr	hdr;
+	__le64				timestamp;
+} __packed;
+
+struct audio_apbridgea_stop_tx_request {
+	struct audio_apbridgea_hdr	hdr;
+} __packed;
+
+struct audio_apbridgea_shutdown_tx_request {
+	struct audio_apbridgea_hdr	hdr;
+} __packed;
+
+struct audio_apbridgea_set_rx_data_size_request {
+	struct audio_apbridgea_hdr	hdr;
+	__le16				size;
+} __packed;
+
+struct audio_apbridgea_prepare_rx_request {
+	struct audio_apbridgea_hdr	hdr;
+} __packed;
+
+struct audio_apbridgea_start_rx_request {
+	struct audio_apbridgea_hdr	hdr;
+} __packed;
+
+struct audio_apbridgea_stop_rx_request {
+	struct audio_apbridgea_hdr	hdr;
+} __packed;
+
+struct audio_apbridgea_shutdown_rx_request {
+	struct audio_apbridgea_hdr	hdr;
+} __packed;
+
+#endif /*__AUDIO_APBRIDGEA_H */
diff --git a/drivers/staging/greybus/audio_codec.c b/drivers/staging/greybus/audio_codec.c
new file mode 100644
index 000000000000..444c53b4e08d
--- /dev/null
+++ b/drivers/staging/greybus/audio_codec.c
@@ -0,0 +1,1100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * APBridge ALSA SoC dummy codec driver
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <uapi/linux/input.h>
+
+#include "audio_codec.h"
+#include "audio_apbridgea.h"
+#include "audio_manager.h"
+#include "audio_helper.h"
+
+static struct gbaudio_codec_info *gbcodec;
+
+static struct gbaudio_data_connection *
+find_data(struct gbaudio_module_info *module, int id)
+{
+	struct gbaudio_data_connection *data;
+
+	list_for_each_entry(data, &module->data_list, list) {
+		if (id == data->id)
+			return data;
+	}
+	return NULL;
+}
+
+static struct gbaudio_stream_params *
+find_dai_stream_params(struct gbaudio_codec_info *codec, int id, int stream)
+{
+	struct gbaudio_codec_dai *dai;
+
+	list_for_each_entry(dai, &codec->dai_list, list) {
+		if (dai->id == id)
+			return &dai->params[stream];
+	}
+	return NULL;
+}
+
+static int gbaudio_module_enable_tx(struct gbaudio_codec_info *codec,
+				    struct gbaudio_module_info *module, int id)
+{
+	int module_state, ret = 0;
+	u16 data_cport, i2s_port, cportid;
+	u8 sig_bits, channels;
+	u32 format, rate;
+	struct gbaudio_data_connection *data;
+	struct gbaudio_stream_params *params;
+
+	/* find the dai */
+	data = find_data(module, id);
+	if (!data) {
+		dev_err(module->dev, "%d:DATA connection missing\n", id);
+		return -ENODEV;
+	}
+	module_state = data->state[SNDRV_PCM_STREAM_PLAYBACK];
+
+	params = find_dai_stream_params(codec, id, SNDRV_PCM_STREAM_PLAYBACK);
+	if (!params) {
+		dev_err(codec->dev, "Failed to fetch dai_stream pointer\n");
+		return -EINVAL;
+	}
+
+	/* register cport */
+	if (module_state < GBAUDIO_CODEC_STARTUP) {
+		i2s_port = 0;	/* fixed for now */
+		cportid = data->connection->hd_cport_id;
+		ret = gb_audio_apbridgea_register_cport(data->connection,
+							i2s_port, cportid,
+							AUDIO_APBRIDGEA_DIRECTION_TX);
+		if (ret) {
+			dev_err_ratelimited(module->dev, "reg_cport failed:%d\n", ret);
+			return ret;
+		}
+		data->state[SNDRV_PCM_STREAM_PLAYBACK] = GBAUDIO_CODEC_STARTUP;
+		dev_dbg(module->dev, "Dynamic Register %d DAI\n", cportid);
+	}
+
+	/* hw_params */
+	if (module_state < GBAUDIO_CODEC_HWPARAMS) {
+		format = params->format;
+		channels = params->channels;
+		rate = params->rate;
+		sig_bits = params->sig_bits;
+		data_cport = data->connection->intf_cport_id;
+		ret = gb_audio_gb_set_pcm(module->mgmt_connection, data_cport,
+					  format, rate, channels, sig_bits);
+		if (ret) {
+			dev_err_ratelimited(module->dev, "set_pcm failed:%d\n", ret);
+			return ret;
+		}
+		data->state[SNDRV_PCM_STREAM_PLAYBACK] = GBAUDIO_CODEC_HWPARAMS;
+		dev_dbg(module->dev, "Dynamic hw_params %d DAI\n", data_cport);
+	}
+
+	/* prepare */
+	if (module_state < GBAUDIO_CODEC_PREPARE) {
+		data_cport = data->connection->intf_cport_id;
+		ret = gb_audio_gb_set_tx_data_size(module->mgmt_connection,
+						   data_cport, 192);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "set_tx_data_size failed:%d\n",
+					    ret);
+			return ret;
+		}
+		ret = gb_audio_gb_activate_tx(module->mgmt_connection, data_cport);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "activate_tx failed:%d\n", ret);
+			return ret;
+		}
+		data->state[SNDRV_PCM_STREAM_PLAYBACK] = GBAUDIO_CODEC_PREPARE;
+		dev_dbg(module->dev, "Dynamic prepare %d DAI\n", data_cport);
+	}
+
+	return 0;
+}
+
+static int gbaudio_module_disable_tx(struct gbaudio_module_info *module, int id)
+{
+	int ret;
+	u16 data_cport, cportid, i2s_port;
+	int module_state;
+	struct gbaudio_data_connection *data;
+
+	/* find the dai */
+	data = find_data(module, id);
+	if (!data) {
+		dev_err(module->dev, "%d:DATA connection missing\n", id);
+		return -ENODEV;
+	}
+	module_state = data->state[SNDRV_PCM_STREAM_PLAYBACK];
+
+	if (module_state > GBAUDIO_CODEC_HWPARAMS) {
+		data_cport = data->connection->intf_cport_id;
+		ret = gb_audio_gb_deactivate_tx(module->mgmt_connection,
+						data_cport);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "deactivate_tx failed:%d\n", ret);
+			return ret;
+		}
+		dev_dbg(module->dev, "Dynamic deactivate %d DAI\n", data_cport);
+		data->state[SNDRV_PCM_STREAM_PLAYBACK] = GBAUDIO_CODEC_HWPARAMS;
+	}
+
+	if (module_state > GBAUDIO_CODEC_SHUTDOWN) {
+		i2s_port = 0;	/* fixed for now */
+		cportid = data->connection->hd_cport_id;
+		ret = gb_audio_apbridgea_unregister_cport(data->connection,
+							  i2s_port, cportid,
+							  AUDIO_APBRIDGEA_DIRECTION_TX);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "unregister_cport failed:%d\n", ret);
+			return ret;
+		}
+		dev_dbg(module->dev, "Dynamic Unregister %d DAI\n", cportid);
+		data->state[SNDRV_PCM_STREAM_PLAYBACK] = GBAUDIO_CODEC_SHUTDOWN;
+	}
+
+	return 0;
+}
+
+static int gbaudio_module_enable_rx(struct gbaudio_codec_info *codec,
+				    struct gbaudio_module_info *module, int id)
+{
+	int module_state, ret = 0;
+	u16 data_cport, i2s_port, cportid;
+	u8 sig_bits, channels;
+	u32 format, rate;
+	struct gbaudio_data_connection *data;
+	struct gbaudio_stream_params *params;
+
+	/* find the dai */
+	data = find_data(module, id);
+	if (!data) {
+		dev_err(module->dev, "%d:DATA connection missing\n", id);
+		return -ENODEV;
+	}
+	module_state = data->state[SNDRV_PCM_STREAM_CAPTURE];
+
+	params = find_dai_stream_params(codec, id, SNDRV_PCM_STREAM_CAPTURE);
+	if (!params) {
+		dev_err(codec->dev, "Failed to fetch dai_stream pointer\n");
+		return -EINVAL;
+	}
+
+	/* register cport */
+	if (module_state < GBAUDIO_CODEC_STARTUP) {
+		i2s_port = 0;	/* fixed for now */
+		cportid = data->connection->hd_cport_id;
+		ret = gb_audio_apbridgea_register_cport(data->connection,
+							i2s_port, cportid,
+							AUDIO_APBRIDGEA_DIRECTION_RX);
+		if (ret) {
+			dev_err_ratelimited(module->dev, "reg_cport failed:%d\n", ret);
+			return ret;
+		}
+		data->state[SNDRV_PCM_STREAM_CAPTURE] = GBAUDIO_CODEC_STARTUP;
+		dev_dbg(module->dev, "Dynamic Register %d DAI\n", cportid);
+	}
+
+	/* hw_params */
+	if (module_state < GBAUDIO_CODEC_HWPARAMS) {
+		format = params->format;
+		channels = params->channels;
+		rate = params->rate;
+		sig_bits = params->sig_bits;
+		data_cport = data->connection->intf_cport_id;
+		ret = gb_audio_gb_set_pcm(module->mgmt_connection, data_cport,
+					  format, rate, channels, sig_bits);
+		if (ret) {
+			dev_err_ratelimited(module->dev, "set_pcm failed:%d\n", ret);
+			return ret;
+		}
+		data->state[SNDRV_PCM_STREAM_CAPTURE] = GBAUDIO_CODEC_HWPARAMS;
+		dev_dbg(module->dev, "Dynamic hw_params %d DAI\n", data_cport);
+	}
+
+	/* prepare */
+	if (module_state < GBAUDIO_CODEC_PREPARE) {
+		data_cport = data->connection->intf_cport_id;
+		ret = gb_audio_gb_set_rx_data_size(module->mgmt_connection,
+						   data_cport, 192);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "set_rx_data_size failed:%d\n",
+					    ret);
+			return ret;
+		}
+		ret = gb_audio_gb_activate_rx(module->mgmt_connection,
+					      data_cport);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "activate_rx failed:%d\n", ret);
+			return ret;
+		}
+		data->state[SNDRV_PCM_STREAM_CAPTURE] = GBAUDIO_CODEC_PREPARE;
+		dev_dbg(module->dev, "Dynamic prepare %d DAI\n", data_cport);
+	}
+
+	return 0;
+}
+
+static int gbaudio_module_disable_rx(struct gbaudio_module_info *module, int id)
+{
+	int ret;
+	u16 data_cport, cportid, i2s_port;
+	int module_state;
+	struct gbaudio_data_connection *data;
+
+	/* find the dai */
+	data = find_data(module, id);
+	if (!data) {
+		dev_err(module->dev, "%d:DATA connection missing\n", id);
+		return -ENODEV;
+	}
+	module_state = data->state[SNDRV_PCM_STREAM_CAPTURE];
+
+	if (module_state > GBAUDIO_CODEC_HWPARAMS) {
+		data_cport = data->connection->intf_cport_id;
+		ret = gb_audio_gb_deactivate_rx(module->mgmt_connection,
+						data_cport);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "deactivate_rx failed:%d\n", ret);
+			return ret;
+		}
+		dev_dbg(module->dev, "Dynamic deactivate %d DAI\n", data_cport);
+		data->state[SNDRV_PCM_STREAM_CAPTURE] = GBAUDIO_CODEC_HWPARAMS;
+	}
+
+	if (module_state > GBAUDIO_CODEC_SHUTDOWN) {
+		i2s_port = 0;	/* fixed for now */
+		cportid = data->connection->hd_cport_id;
+		ret = gb_audio_apbridgea_unregister_cport(data->connection,
+							  i2s_port, cportid,
+							  AUDIO_APBRIDGEA_DIRECTION_RX);
+		if (ret) {
+			dev_err_ratelimited(module->dev,
+					    "unregister_cport failed:%d\n", ret);
+			return ret;
+		}
+		dev_dbg(module->dev, "Dynamic Unregister %d DAI\n", cportid);
+		data->state[SNDRV_PCM_STREAM_CAPTURE] = GBAUDIO_CODEC_SHUTDOWN;
+	}
+
+	return 0;
+}
+
+int gbaudio_module_update(struct gbaudio_codec_info *codec,
+			  struct snd_soc_dapm_widget *w,
+			  struct gbaudio_module_info *module, int enable)
+{
+	int dai_id, ret;
+	char intf_name[NAME_SIZE], dir[NAME_SIZE];
+
+	dev_dbg(module->dev, "%s:Module update %s sequence\n", w->name,
+		enable ? "Enable" : "Disable");
+
+	if ((w->id != snd_soc_dapm_aif_in) && (w->id != snd_soc_dapm_aif_out)) {
+		dev_dbg(codec->dev, "No action required for %s\n", w->name);
+		return 0;
+	}
+
+	/* parse dai_id from AIF widget's stream_name */
+	ret = sscanf(w->sname, "%s %d %s", intf_name, &dai_id, dir);
+	if (ret < 3) {
+		dev_err(codec->dev, "Error while parsing dai_id for %s\n", w->name);
+		return -EINVAL;
+	}
+
+	mutex_lock(&codec->lock);
+	if (w->id == snd_soc_dapm_aif_in) {
+		if (enable)
+			ret = gbaudio_module_enable_tx(codec, module, dai_id);
+		else
+			ret = gbaudio_module_disable_tx(module, dai_id);
+	} else if (w->id == snd_soc_dapm_aif_out) {
+		if (enable)
+			ret = gbaudio_module_enable_rx(codec, module, dai_id);
+		else
+			ret = gbaudio_module_disable_rx(module, dai_id);
+	}
+
+	mutex_unlock(&codec->lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(gbaudio_module_update);
+
+/*
+ * codec DAI ops
+ */
+static int gbcodec_startup(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev);
+	struct gbaudio_stream_params *params;
+
+	mutex_lock(&codec->lock);
+
+	if (list_empty(&codec->module_list)) {
+		dev_err(codec->dev, "No codec module available\n");
+		mutex_unlock(&codec->lock);
+		return -ENODEV;
+	}
+
+	params = find_dai_stream_params(codec, dai->id, substream->stream);
+	if (!params) {
+		dev_err(codec->dev, "Failed to fetch dai_stream pointer\n");
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+	params->state = GBAUDIO_CODEC_STARTUP;
+	mutex_unlock(&codec->lock);
+	/* to prevent suspend in case of active audio */
+	pm_stay_awake(dai->dev);
+
+	return 0;
+}
+
+static void gbcodec_shutdown(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev);
+	struct gbaudio_stream_params *params;
+
+	mutex_lock(&codec->lock);
+
+	if (list_empty(&codec->module_list))
+		dev_info(codec->dev, "No codec module available during shutdown\n");
+
+	params = find_dai_stream_params(codec, dai->id, substream->stream);
+	if (!params) {
+		dev_err(codec->dev, "Failed to fetch dai_stream pointer\n");
+		mutex_unlock(&codec->lock);
+		return;
+	}
+	params->state = GBAUDIO_CODEC_SHUTDOWN;
+	mutex_unlock(&codec->lock);
+	pm_relax(dai->dev);
+}
+
+static int gbcodec_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *hwparams,
+			     struct snd_soc_dai *dai)
+{
+	int ret;
+	u8 sig_bits, channels;
+	u32 format, rate;
+	struct gbaudio_module_info *module;
+	struct gbaudio_data_connection *data;
+	struct gb_bundle *bundle;
+	struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev);
+	struct gbaudio_stream_params *params;
+
+	mutex_lock(&codec->lock);
+
+	if (list_empty(&codec->module_list)) {
+		dev_err(codec->dev, "No codec module available\n");
+		mutex_unlock(&codec->lock);
+		return -ENODEV;
+	}
+
+	/*
+	 * assuming, currently only 48000 Hz, 16BIT_LE, stereo
+	 * is supported, validate params before configuring codec
+	 */
+	if (params_channels(hwparams) != 2) {
+		dev_err(dai->dev, "Invalid channel count:%d\n",
+			params_channels(hwparams));
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+	channels = params_channels(hwparams);
+
+	if (params_rate(hwparams) != 48000) {
+		dev_err(dai->dev, "Invalid sampling rate:%d\n",
+			params_rate(hwparams));
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+	rate = GB_AUDIO_PCM_RATE_48000;
+
+	if (params_format(hwparams) != SNDRV_PCM_FORMAT_S16_LE) {
+		dev_err(dai->dev, "Invalid format:%d\n", params_format(hwparams));
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+	format = GB_AUDIO_PCM_FMT_S16_LE;
+
+	/* find the data connection */
+	list_for_each_entry(module, &codec->module_list, list) {
+		data = find_data(module, dai->id);
+		if (data)
+			break;
+	}
+
+	if (!data) {
+		dev_err(dai->dev, "DATA connection missing\n");
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+
+	params = find_dai_stream_params(codec, dai->id, substream->stream);
+	if (!params) {
+		dev_err(codec->dev, "Failed to fetch dai_stream pointer\n");
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+
+	bundle = to_gb_bundle(module->dev);
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret) {
+		mutex_unlock(&codec->lock);
+		return ret;
+	}
+
+	ret = gb_audio_apbridgea_set_config(data->connection, 0,
+					    AUDIO_APBRIDGEA_PCM_FMT_16,
+					    AUDIO_APBRIDGEA_PCM_RATE_48000,
+					    6144000);
+	if (ret) {
+		dev_err_ratelimited(dai->dev, "%d: Error during set_config\n",
+				    ret);
+		gb_pm_runtime_put_noidle(bundle);
+		mutex_unlock(&codec->lock);
+		return ret;
+	}
+
+	gb_pm_runtime_put_noidle(bundle);
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		sig_bits = dai->driver->playback.sig_bits;
+	else
+		sig_bits = dai->driver->capture.sig_bits;
+
+	params->state = GBAUDIO_CODEC_HWPARAMS;
+	params->format = format;
+	params->rate = rate;
+	params->channels = channels;
+	params->sig_bits = sig_bits;
+
+	mutex_unlock(&codec->lock);
+	return 0;
+}
+
+static int gbcodec_prepare(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	int ret;
+	struct gbaudio_module_info *module = NULL, *iter;
+	struct gbaudio_data_connection *data;
+	struct gb_bundle *bundle;
+	struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev);
+	struct gbaudio_stream_params *params;
+
+	mutex_lock(&codec->lock);
+
+	if (list_empty(&codec->module_list)) {
+		dev_err(codec->dev, "No codec module available\n");
+		mutex_unlock(&codec->lock);
+		return -ENODEV;
+	}
+
+	list_for_each_entry(iter, &codec->module_list, list) {
+		/* find the dai */
+		data = find_data(iter, dai->id);
+		if (data) {
+			module = iter;
+			break;
+		}
+	}
+	if (!data) {
+		dev_err(dai->dev, "DATA connection missing\n");
+		mutex_unlock(&codec->lock);
+		return -ENODEV;
+	}
+
+	params = find_dai_stream_params(codec, dai->id, substream->stream);
+	if (!params) {
+		dev_err(codec->dev, "Failed to fetch dai_stream pointer\n");
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+
+	bundle = to_gb_bundle(module->dev);
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret) {
+		mutex_unlock(&codec->lock);
+		return ret;
+	}
+
+	switch (substream->stream) {
+	case SNDRV_PCM_STREAM_PLAYBACK:
+		ret = gb_audio_apbridgea_set_tx_data_size(data->connection, 0, 192);
+		break;
+	case SNDRV_PCM_STREAM_CAPTURE:
+		ret = gb_audio_apbridgea_set_rx_data_size(data->connection, 0, 192);
+		break;
+	}
+	if (ret) {
+		gb_pm_runtime_put_noidle(bundle);
+		mutex_unlock(&codec->lock);
+		dev_err_ratelimited(dai->dev, "set_data_size failed:%d\n", ret);
+		return ret;
+	}
+
+	gb_pm_runtime_put_noidle(bundle);
+
+	params->state = GBAUDIO_CODEC_PREPARE;
+	mutex_unlock(&codec->lock);
+	return 0;
+}
+
+static int gbcodec_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
+{
+	int ret;
+	struct gbaudio_data_connection *data;
+	struct gbaudio_module_info *module = NULL, *iter;
+	struct gb_bundle *bundle;
+	struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev);
+	struct gbaudio_stream_params *params;
+
+	dev_dbg(dai->dev, "Mute:%d, Direction:%s\n", mute,
+		stream ? "CAPTURE" : "PLAYBACK");
+
+	mutex_lock(&codec->lock);
+
+	params = find_dai_stream_params(codec, dai->id, stream);
+	if (!params) {
+		dev_err(codec->dev, "Failed to fetch dai_stream pointer\n");
+		mutex_unlock(&codec->lock);
+		return -EINVAL;
+	}
+
+	if (list_empty(&codec->module_list)) {
+		dev_err(codec->dev, "No codec module available\n");
+		if (mute) {
+			params->state = GBAUDIO_CODEC_STOP;
+			ret = 0;
+		} else {
+			ret = -ENODEV;
+		}
+		mutex_unlock(&codec->lock);
+		return ret;
+	}
+
+	list_for_each_entry(iter, &codec->module_list, list) {
+		/* find the dai */
+		data = find_data(iter, dai->id);
+		if (data) {
+			module = iter;
+			break;
+		}
+	}
+	if (!data) {
+		dev_err(dai->dev, "%s DATA connection missing\n",
+			dai->name);
+		mutex_unlock(&codec->lock);
+		return -ENODEV;
+	}
+
+	bundle = to_gb_bundle(module->dev);
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret) {
+		mutex_unlock(&codec->lock);
+		return ret;
+	}
+
+	if (!mute && !stream) {/* start playback */
+		ret = gb_audio_apbridgea_prepare_tx(data->connection, 0);
+		if (!ret)
+			ret = gb_audio_apbridgea_start_tx(data->connection, 0, 0);
+		params->state = GBAUDIO_CODEC_START;
+	} else if (!mute && stream) {/* start capture */
+		ret = gb_audio_apbridgea_prepare_rx(data->connection, 0);
+		if (!ret)
+			ret = gb_audio_apbridgea_start_rx(data->connection, 0);
+		params->state = GBAUDIO_CODEC_START;
+	} else if (mute && !stream) {/* stop playback */
+		ret = gb_audio_apbridgea_stop_tx(data->connection, 0);
+		if (!ret)
+			ret = gb_audio_apbridgea_shutdown_tx(data->connection, 0);
+		params->state = GBAUDIO_CODEC_STOP;
+	} else if (mute && stream) {/* stop capture */
+		ret = gb_audio_apbridgea_stop_rx(data->connection, 0);
+		if (!ret)
+			ret = gb_audio_apbridgea_shutdown_rx(data->connection, 0);
+		params->state = GBAUDIO_CODEC_STOP;
+	} else {
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		dev_err_ratelimited(dai->dev,
+				    "%s:Error during %s %s stream:%d\n",
+				    module->name, mute ? "Mute" : "Unmute",
+				    stream ? "Capture" : "Playback", ret);
+
+	gb_pm_runtime_put_noidle(bundle);
+	mutex_unlock(&codec->lock);
+	return ret;
+}
+
+static const struct snd_soc_dai_ops gbcodec_dai_ops = {
+	.startup = gbcodec_startup,
+	.shutdown = gbcodec_shutdown,
+	.hw_params = gbcodec_hw_params,
+	.prepare = gbcodec_prepare,
+	.mute_stream = gbcodec_mute_stream,
+};
+
+static struct snd_soc_dai_driver gbaudio_dai[] = {
+	{
+		.name = "apb-i2s0",
+		.id = 0,
+		.playback = {
+			.stream_name = "I2S 0 Playback",
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE,
+			.rate_max = 48000,
+			.rate_min = 48000,
+			.channels_min = 1,
+			.channels_max = 2,
+			.sig_bits = 16,
+		},
+		.capture = {
+			.stream_name = "I2S 0 Capture",
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE,
+			.rate_max = 48000,
+			.rate_min = 48000,
+			.channels_min = 1,
+			.channels_max = 2,
+			.sig_bits = 16,
+		},
+		.ops = &gbcodec_dai_ops,
+	},
+};
+
+static int gbaudio_init_jack(struct gbaudio_module_info *module,
+			     struct snd_soc_card *card)
+{
+	int ret;
+	struct gbaudio_jack *jack, *n;
+	struct snd_soc_jack_pin *headset, *button;
+
+	if (!module->jack_mask)
+		return 0;
+
+	snprintf(module->jack_name, NAME_SIZE, "GB %d Headset Jack",
+		 module->dev_id);
+
+	headset = devm_kzalloc(module->dev, sizeof(*headset), GFP_KERNEL);
+	if (!headset)
+		return -ENOMEM;
+
+	headset->pin = module->jack_name;
+	headset->mask = module->jack_mask;
+	ret = snd_soc_card_jack_new_pins(card, module->jack_name,
+					 module->jack_mask,
+					 &module->headset.jack, headset, 1);
+	if (ret) {
+		dev_err(module->dev, "Failed to create new jack\n");
+		return ret;
+	}
+
+	/* Add to module's jack list */
+	list_add(&module->headset.list, &module->jack_list);
+
+	if (!module->button_mask)
+		return 0;
+
+	snprintf(module->button_name, NAME_SIZE, "GB %d Button Jack",
+		 module->dev_id);
+	button = devm_kzalloc(module->dev, sizeof(*button), GFP_KERNEL);
+	if (!button) {
+		ret = -ENOMEM;
+		goto free_jacks;
+	}
+
+	button->pin = module->button_name;
+	button->mask = module->button_mask;
+	ret = snd_soc_card_jack_new_pins(card, module->button_name,
+					 module->button_mask,
+					 &module->button.jack,
+					 button, 1);
+	if (ret) {
+		dev_err(module->dev, "Failed to create button jack\n");
+		goto free_jacks;
+	}
+
+	/* Add to module's jack list */
+	list_add(&module->button.list, &module->jack_list);
+
+	/*
+	 * Currently, max 4 buttons are supported with following key mapping
+	 * BTN_0 = KEY_MEDIA
+	 * BTN_1 = KEY_VOICECOMMAND
+	 * BTN_2 = KEY_VOLUMEUP
+	 * BTN_3 = KEY_VOLUMEDOWN
+	 */
+
+	if (module->button_mask & SND_JACK_BTN_0) {
+		ret = snd_jack_set_key(module->button.jack.jack, SND_JACK_BTN_0,
+				       KEY_MEDIA);
+		if (ret) {
+			dev_err(module->dev, "Failed to set BTN_0\n");
+			goto free_jacks;
+		}
+	}
+
+	if (module->button_mask & SND_JACK_BTN_1) {
+		ret = snd_jack_set_key(module->button.jack.jack, SND_JACK_BTN_1,
+				       KEY_VOICECOMMAND);
+		if (ret) {
+			dev_err(module->dev, "Failed to set BTN_1\n");
+			goto free_jacks;
+		}
+	}
+
+	if (module->button_mask & SND_JACK_BTN_2) {
+		ret = snd_jack_set_key(module->button.jack.jack, SND_JACK_BTN_2,
+				       KEY_VOLUMEUP);
+		if (ret) {
+			dev_err(module->dev, "Failed to set BTN_2\n");
+			goto free_jacks;
+		}
+	}
+
+	if (module->button_mask & SND_JACK_BTN_3) {
+		ret = snd_jack_set_key(module->button.jack.jack, SND_JACK_BTN_3,
+				       KEY_VOLUMEDOWN);
+		if (ret) {
+			dev_err(module->dev, "Failed to set BTN_0\n");
+			goto free_jacks;
+		}
+	}
+
+	/* FIXME
+	 * verify if this is really required
+	set_bit(INPUT_PROP_NO_DUMMY_RELEASE,
+		module->button.jack.jack->input_dev->propbit);
+	*/
+
+	return 0;
+
+free_jacks:
+	list_for_each_entry_safe(jack, n, &module->jack_list, list) {
+		snd_device_free(card->snd_card, jack->jack.jack);
+		list_del(&jack->list);
+	}
+
+	return ret;
+}
+
+int gbaudio_register_module(struct gbaudio_module_info *module)
+{
+	int ret;
+	struct snd_soc_component *comp;
+	struct snd_soc_dapm_context *dapm;
+	struct gbaudio_jack *jack = NULL;
+
+	if (!gbcodec) {
+		dev_err(module->dev, "GB Codec not yet probed\n");
+		return -EAGAIN;
+	}
+
+	comp = gbcodec->component;
+	dapm = snd_soc_component_to_dapm(comp);
+
+	mutex_lock(&gbcodec->register_mutex);
+
+	if (module->num_dais) {
+		dev_err(gbcodec->dev,
+			"%d:DAIs not supported via gbcodec driver\n",
+			module->num_dais);
+		mutex_unlock(&gbcodec->register_mutex);
+		return -EINVAL;
+	}
+
+	ret = gbaudio_init_jack(module, comp->card);
+	if (ret) {
+		mutex_unlock(&gbcodec->register_mutex);
+		return ret;
+	}
+
+	if (module->dapm_widgets)
+		snd_soc_dapm_new_controls(dapm, module->dapm_widgets,
+					  module->num_dapm_widgets);
+	if (module->controls)
+		snd_soc_add_component_controls(comp, module->controls,
+					       module->num_controls);
+	if (module->dapm_routes)
+		snd_soc_dapm_add_routes(dapm, module->dapm_routes,
+					module->num_dapm_routes);
+
+	/* card already instantiated, create widgets here only */
+	if (comp->card->instantiated) {
+		gbaudio_dapm_link_component_dai_widgets(comp->card, dapm);
+#ifdef CONFIG_SND_JACK
+		/*
+		 * register jack devices for this module
+		 * from codec->jack_list
+		 */
+		list_for_each_entry(jack, &module->jack_list, list) {
+			snd_device_register(comp->card->snd_card,
+					    jack->jack.jack);
+		}
+#endif
+	}
+
+	mutex_lock(&gbcodec->lock);
+	list_add(&module->list, &gbcodec->module_list);
+	mutex_unlock(&gbcodec->lock);
+
+	if (comp->card->instantiated)
+		ret = snd_soc_dapm_new_widgets(comp->card);
+	dev_dbg(comp->dev, "Registered %s module\n", module->name);
+
+	mutex_unlock(&gbcodec->register_mutex);
+	return ret;
+}
+EXPORT_SYMBOL(gbaudio_register_module);
+
+static void gbaudio_codec_clean_data_tx(struct gbaudio_data_connection *data)
+{
+	u16 i2s_port, cportid;
+	int ret;
+
+	if (list_is_singular(&gbcodec->module_list)) {
+		ret = gb_audio_apbridgea_stop_tx(data->connection, 0);
+		if (ret)
+			return;
+		ret = gb_audio_apbridgea_shutdown_tx(data->connection, 0);
+		if (ret)
+			return;
+	}
+	i2s_port = 0;	/* fixed for now */
+	cportid = data->connection->hd_cport_id;
+	ret = gb_audio_apbridgea_unregister_cport(data->connection,
+						  i2s_port, cportid,
+						  AUDIO_APBRIDGEA_DIRECTION_TX);
+	data->state[0] = GBAUDIO_CODEC_SHUTDOWN;
+}
+
+static void gbaudio_codec_clean_data_rx(struct gbaudio_data_connection *data)
+{
+	u16 i2s_port, cportid;
+	int ret;
+
+	if (list_is_singular(&gbcodec->module_list)) {
+		ret = gb_audio_apbridgea_stop_rx(data->connection, 0);
+		if (ret)
+			return;
+		ret = gb_audio_apbridgea_shutdown_rx(data->connection, 0);
+		if (ret)
+			return;
+	}
+	i2s_port = 0;	/* fixed for now */
+	cportid = data->connection->hd_cport_id;
+	ret = gb_audio_apbridgea_unregister_cport(data->connection,
+						  i2s_port, cportid,
+						  AUDIO_APBRIDGEA_DIRECTION_RX);
+	data->state[1] = GBAUDIO_CODEC_SHUTDOWN;
+}
+
+static void gbaudio_codec_cleanup(struct gbaudio_module_info *module)
+{
+	struct gbaudio_data_connection *data;
+	int pb_state, cap_state;
+
+	dev_dbg(gbcodec->dev, "%s: removed, cleanup APBridge\n", module->name);
+	list_for_each_entry(data, &module->data_list, list) {
+		pb_state = data->state[0];
+		cap_state = data->state[1];
+
+		if (pb_state > GBAUDIO_CODEC_SHUTDOWN)
+			gbaudio_codec_clean_data_tx(data);
+
+		if (cap_state > GBAUDIO_CODEC_SHUTDOWN)
+			gbaudio_codec_clean_data_rx(data);
+	}
+}
+
+void gbaudio_unregister_module(struct gbaudio_module_info *module)
+{
+	struct snd_soc_component *comp = gbcodec->component;
+	struct gbaudio_jack *jack, *n;
+	int mask;
+
+	dev_dbg(comp->dev, "Unregister %s module\n", module->name);
+
+	mutex_lock(&gbcodec->register_mutex);
+	mutex_lock(&gbcodec->lock);
+	gbaudio_codec_cleanup(module);
+	list_del(&module->list);
+	dev_dbg(comp->dev, "Process Unregister %s module\n", module->name);
+	mutex_unlock(&gbcodec->lock);
+
+#ifdef CONFIG_SND_JACK
+	/* free jack devices for this module jack_list */
+	list_for_each_entry_safe(jack, n, &module->jack_list, list) {
+		if (jack == &module->headset)
+			mask = GBCODEC_JACK_MASK;
+		else if (jack == &module->button)
+			mask = GBCODEC_JACK_BUTTON_MASK;
+		else
+			mask = 0;
+		if (mask) {
+			dev_dbg(module->dev, "Report %s removal\n",
+				jack->jack.jack->id);
+			snd_soc_jack_report(&jack->jack, 0, mask);
+			snd_device_free(comp->card->snd_card,
+					jack->jack.jack);
+			list_del(&jack->list);
+		}
+	}
+#endif
+
+	if (module->dapm_routes) {
+		struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(comp);
+
+		dev_dbg(comp->dev, "Removing %d routes\n",
+			module->num_dapm_routes);
+		snd_soc_dapm_del_routes(dapm, module->dapm_routes,
+					module->num_dapm_routes);
+	}
+	if (module->controls) {
+		dev_dbg(comp->dev, "Removing %d controls\n",
+			module->num_controls);
+		/* release control semaphore */
+		gbaudio_remove_component_controls(comp, module->controls,
+						  module->num_controls);
+	}
+	if (module->dapm_widgets) {
+		struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(comp);
+
+		dev_dbg(comp->dev, "Removing %d widgets\n",
+			module->num_dapm_widgets);
+		gbaudio_dapm_free_controls(dapm, module->dapm_widgets,
+					   module->num_dapm_widgets);
+	}
+
+	dev_dbg(comp->dev, "Unregistered %s module\n", module->name);
+
+	mutex_unlock(&gbcodec->register_mutex);
+}
+EXPORT_SYMBOL(gbaudio_unregister_module);
+
+/*
+ * component driver ops
+ */
+static int gbcodec_probe(struct snd_soc_component *comp)
+{
+	int i;
+	struct gbaudio_codec_info *info;
+	struct gbaudio_codec_dai *dai;
+
+	info = devm_kzalloc(comp->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->dev = comp->dev;
+	INIT_LIST_HEAD(&info->module_list);
+	mutex_init(&info->lock);
+	mutex_init(&info->register_mutex);
+	INIT_LIST_HEAD(&info->dai_list);
+
+	/* init dai_list used to maintain runtime stream info */
+	for (i = 0; i < ARRAY_SIZE(gbaudio_dai); i++) {
+		dai = devm_kzalloc(comp->dev, sizeof(*dai), GFP_KERNEL);
+		if (!dai)
+			return -ENOMEM;
+		dai->id = gbaudio_dai[i].id;
+		list_add(&dai->list, &info->dai_list);
+	}
+
+	info->component = comp;
+	snd_soc_component_set_drvdata(comp, info);
+	gbcodec = info;
+
+	device_init_wakeup(comp->dev, 1);
+	return 0;
+}
+
+static int gbcodec_write(struct snd_soc_component *comp, unsigned int reg,
+			 unsigned int value)
+{
+	return 0;
+}
+
+static unsigned int gbcodec_read(struct snd_soc_component *comp,
+				 unsigned int reg)
+{
+	return 0;
+}
+
+static const struct snd_soc_component_driver soc_codec_dev_gbaudio = {
+	.probe	= gbcodec_probe,
+	.read = gbcodec_read,
+	.write = gbcodec_write,
+};
+
+#ifdef CONFIG_PM
+static int gbaudio_codec_suspend(struct device *dev)
+{
+	dev_dbg(dev, "%s: suspend\n", __func__);
+	return 0;
+}
+
+static int gbaudio_codec_resume(struct device *dev)
+{
+	dev_dbg(dev, "%s: resume\n", __func__);
+	return 0;
+}
+
+static const struct dev_pm_ops gbaudio_codec_pm_ops = {
+	.suspend	= gbaudio_codec_suspend,
+	.resume		= gbaudio_codec_resume,
+};
+#endif
+
+static int gbaudio_codec_probe(struct platform_device *pdev)
+{
+	return devm_snd_soc_register_component(&pdev->dev,
+			&soc_codec_dev_gbaudio,
+			gbaudio_dai, ARRAY_SIZE(gbaudio_dai));
+}
+
+static const struct of_device_id greybus_asoc_machine_of_match[]  = {
+	{ .compatible = "toshiba,apb-dummy-codec", },
+	{},
+};
+
+static struct platform_driver gbaudio_codec_driver = {
+	.driver = {
+		.name = "apb-dummy-codec",
+#ifdef CONFIG_PM
+		.pm = &gbaudio_codec_pm_ops,
+#endif
+		.of_match_table = greybus_asoc_machine_of_match,
+	},
+	.probe = gbaudio_codec_probe,
+};
+module_platform_driver(gbaudio_codec_driver);
+
+MODULE_DESCRIPTION("APBridge ALSA SoC dummy codec driver");
+MODULE_AUTHOR("Vaibhav Agarwal <vaibhav.agarwal@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:apb-dummy-codec");
diff --git a/drivers/staging/greybus/audio_codec.h b/drivers/staging/greybus/audio_codec.h
new file mode 100644
index 000000000000..f3f7a7ec6be4
--- /dev/null
+++ b/drivers/staging/greybus/audio_codec.h
@@ -0,0 +1,243 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus audio driver
+ * Copyright 2015 Google Inc.
+ * Copyright 2015 Linaro Ltd.
+ */
+
+#ifndef __LINUX_GBAUDIO_CODEC_H
+#define __LINUX_GBAUDIO_CODEC_H
+
+#include <linux/greybus.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#define NAME_SIZE	32
+#define MAX_DAIS	2	/* APB1, APB2 */
+
+enum {
+	APB1_PCM = 0,
+	APB2_PCM,
+	NUM_CODEC_DAIS,
+};
+
+/*
+ * device_type should be same as defined in audio.h
+ * (Android media layer)
+ */
+enum {
+	GBAUDIO_DEVICE_NONE                     = 0x0,
+	/* reserved bits */
+	GBAUDIO_DEVICE_BIT_IN                   = 0x80000000,
+	GBAUDIO_DEVICE_BIT_DEFAULT              = 0x40000000,
+	/* output devices */
+	GBAUDIO_DEVICE_OUT_SPEAKER              = 0x2,
+	GBAUDIO_DEVICE_OUT_WIRED_HEADSET        = 0x4,
+	GBAUDIO_DEVICE_OUT_WIRED_HEADPHONE      = 0x8,
+	/* input devices */
+	GBAUDIO_DEVICE_IN_BUILTIN_MIC           = GBAUDIO_DEVICE_BIT_IN | 0x4,
+	GBAUDIO_DEVICE_IN_WIRED_HEADSET         = GBAUDIO_DEVICE_BIT_IN | 0x10,
+};
+
+#define GBCODEC_JACK_MASK		0x0000FFFF
+#define GBCODEC_JACK_BUTTON_MASK	0xFFFF0000
+
+enum gbaudio_codec_state {
+	GBAUDIO_CODEC_SHUTDOWN = 0,
+	GBAUDIO_CODEC_STARTUP,
+	GBAUDIO_CODEC_HWPARAMS,
+	GBAUDIO_CODEC_PREPARE,
+	GBAUDIO_CODEC_START,
+	GBAUDIO_CODEC_STOP,
+};
+
+struct gbaudio_stream_params {
+	int state;
+	u8 sig_bits, channels;
+	u32 format, rate;
+};
+
+struct gbaudio_codec_dai {
+	int id;
+	/* runtime params for playback/capture streams */
+	struct gbaudio_stream_params params[2];
+	struct list_head list;
+};
+
+struct gbaudio_codec_info {
+	struct device *dev;
+	struct snd_soc_component *component;
+	struct list_head module_list;
+	/* to maintain runtime stream params for each DAI */
+	struct list_head dai_list;
+	struct mutex lock;
+	struct mutex register_mutex;
+};
+
+struct gbaudio_widget {
+	__u8 id;
+	const char *name;
+	struct list_head list;
+};
+
+struct gbaudio_control {
+	__u8 id;
+	char *name;
+	char *wname;
+	const char * const *texts;
+	int items;
+	struct list_head list;
+};
+
+struct gbaudio_data_connection {
+	int id;
+	__le16 data_cport;
+	struct gb_connection *connection;
+	struct list_head list;
+	/* maintain runtime state for playback/capture stream */
+	int state[2];
+};
+
+/* stream direction */
+#define GB_PLAYBACK	BIT(0)
+#define GB_CAPTURE	BIT(1)
+
+enum gbaudio_module_state {
+	GBAUDIO_MODULE_OFF = 0,
+	GBAUDIO_MODULE_ON,
+};
+
+struct gbaudio_jack {
+	struct snd_soc_jack jack;
+	struct list_head list;
+};
+
+struct gbaudio_module_info {
+	/* module info */
+	struct device *dev;
+	int dev_id;	/* check if it should be bundle_id/hd_cport_id */
+	int vid;
+	int pid;
+	int type;
+	int set_uevent;
+	char vstr[NAME_SIZE];
+	char pstr[NAME_SIZE];
+	struct list_head list;
+	/* need to share this info to above user space */
+	int manager_id;
+	char name[NAME_SIZE];
+	unsigned int ip_devices;
+	unsigned int op_devices;
+
+	/* jack related */
+	char jack_name[NAME_SIZE];
+	char button_name[NAME_SIZE];
+	int jack_type;
+	int jack_mask;
+	int button_mask;
+	int button_status;
+	struct gbaudio_jack headset;
+	struct gbaudio_jack button;
+
+	/* connection info */
+	struct gb_connection *mgmt_connection;
+	size_t num_data_connections;
+	struct list_head data_list;
+
+	/* topology related */
+	int num_dais;
+	int num_controls;
+	int num_dapm_widgets;
+	int num_dapm_routes;
+	unsigned long dai_offset;
+	unsigned long widget_offset;
+	unsigned long control_offset;
+	unsigned long route_offset;
+	struct snd_kcontrol_new *controls;
+	struct snd_soc_dapm_widget *dapm_widgets;
+	struct snd_soc_dapm_route *dapm_routes;
+	struct snd_soc_dai_driver *dais;
+
+	struct list_head widget_list;
+	struct list_head ctl_list;
+	struct list_head widget_ctl_list;
+	struct list_head jack_list;
+
+	struct gb_audio_topology *topology;
+};
+
+int gbaudio_tplg_parse_data(struct gbaudio_module_info *module,
+			    struct gb_audio_topology *tplg_data);
+void gbaudio_tplg_release(struct gbaudio_module_info *module);
+
+int gbaudio_module_update(struct gbaudio_codec_info *codec,
+			  struct snd_soc_dapm_widget *w,
+			  struct gbaudio_module_info *module,
+			  int enable);
+int gbaudio_register_module(struct gbaudio_module_info *module);
+void gbaudio_unregister_module(struct gbaudio_module_info *module);
+
+/* protocol related */
+int gb_audio_gb_get_topology(struct gb_connection *connection,
+			     struct gb_audio_topology **topology);
+int gb_audio_gb_get_control(struct gb_connection *connection,
+			    u8 control_id, u8 index,
+			    struct gb_audio_ctl_elem_value *value);
+int gb_audio_gb_set_control(struct gb_connection *connection,
+			    u8 control_id, u8 index,
+			    struct gb_audio_ctl_elem_value *value);
+int gb_audio_gb_enable_widget(struct gb_connection *connection,
+			      u8 widget_id);
+int gb_audio_gb_disable_widget(struct gb_connection *connection,
+			       u8 widget_id);
+int gb_audio_gb_get_pcm(struct gb_connection *connection,
+			u16 data_cport, u32 *format,
+			u32 *rate, u8 *channels,
+			u8 *sig_bits);
+int gb_audio_gb_set_pcm(struct gb_connection *connection,
+			u16 data_cport, u32 format,
+			u32 rate, u8 channels,
+			u8 sig_bits);
+int gb_audio_gb_set_tx_data_size(struct gb_connection *connection,
+				 u16 data_cport, u16 size);
+int gb_audio_gb_activate_tx(struct gb_connection *connection,
+			    u16 data_cport);
+int gb_audio_gb_deactivate_tx(struct gb_connection *connection,
+			      u16 data_cport);
+int gb_audio_gb_set_rx_data_size(struct gb_connection *connection,
+				 u16 data_cport, u16 size);
+int gb_audio_gb_activate_rx(struct gb_connection *connection,
+			    u16 data_cport);
+int gb_audio_gb_deactivate_rx(struct gb_connection *connection,
+			      u16 data_cport);
+int gb_audio_apbridgea_set_config(struct gb_connection *connection,
+				  __u16 i2s_port, __u32 format,
+				  __u32 rate, __u32 mclk_freq);
+int gb_audio_apbridgea_register_cport(struct gb_connection *connection,
+				      __u16 i2s_port, __u16 cportid,
+				      __u8 direction);
+int gb_audio_apbridgea_unregister_cport(struct gb_connection *connection,
+					__u16 i2s_port, __u16 cportid,
+					__u8 direction);
+int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection,
+					__u16 i2s_port, __u16 size);
+int gb_audio_apbridgea_prepare_tx(struct gb_connection *connection,
+				  __u16 i2s_port);
+int gb_audio_apbridgea_start_tx(struct gb_connection *connection,
+				__u16 i2s_port, __u64 timestamp);
+int gb_audio_apbridgea_stop_tx(struct gb_connection *connection,
+			       __u16 i2s_port);
+int gb_audio_apbridgea_shutdown_tx(struct gb_connection *connection,
+				   __u16 i2s_port);
+int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection,
+					__u16 i2s_port, __u16 size);
+int gb_audio_apbridgea_prepare_rx(struct gb_connection *connection,
+				  __u16 i2s_port);
+int gb_audio_apbridgea_start_rx(struct gb_connection *connection,
+				__u16 i2s_port);
+int gb_audio_apbridgea_stop_rx(struct gb_connection *connection,
+			       __u16 i2s_port);
+int gb_audio_apbridgea_shutdown_rx(struct gb_connection *connection,
+				   __u16 i2s_port);
+
+#endif /* __LINUX_GBAUDIO_CODEC_H */
diff --git a/drivers/staging/greybus/audio_gb.c b/drivers/staging/greybus/audio_gb.c
new file mode 100644
index 000000000000..9d8994fdb41a
--- /dev/null
+++ b/drivers/staging/greybus/audio_gb.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Audio Device Class Protocol helpers
+ *
+ * Copyright 2015-2016 Google Inc.
+ */
+
+#include <linux/greybus.h>
+#include "audio_codec.h"
+
+/* TODO: Split into separate calls */
+int gb_audio_gb_get_topology(struct gb_connection *connection,
+			     struct gb_audio_topology **topology)
+{
+	struct gb_audio_get_topology_size_response size_resp;
+	struct gb_audio_topology *topo;
+	u16 size;
+	int ret;
+
+	ret = gb_operation_sync(connection, GB_AUDIO_TYPE_GET_TOPOLOGY_SIZE,
+				NULL, 0, &size_resp, sizeof(size_resp));
+	if (ret)
+		return ret;
+
+	size = le16_to_cpu(size_resp.size);
+	if (size < sizeof(*topo))
+		return -ENODATA;
+
+	topo = kzalloc(size, GFP_KERNEL);
+	if (!topo)
+		return -ENOMEM;
+
+	ret = gb_operation_sync(connection, GB_AUDIO_TYPE_GET_TOPOLOGY, NULL, 0,
+				topo, size);
+	if (ret) {
+		kfree(topo);
+		return ret;
+	}
+
+	*topology = topo;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_get_topology);
+
+int gb_audio_gb_get_control(struct gb_connection *connection,
+			    u8 control_id, u8 index,
+			    struct gb_audio_ctl_elem_value *value)
+{
+	struct gb_audio_get_control_request req;
+	struct gb_audio_get_control_response resp;
+	int ret;
+
+	req.control_id = control_id;
+	req.index = index;
+
+	ret = gb_operation_sync(connection, GB_AUDIO_TYPE_GET_CONTROL,
+				&req, sizeof(req), &resp, sizeof(resp));
+	if (ret)
+		return ret;
+
+	memcpy(value, &resp.value, sizeof(*value));
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_get_control);
+
+int gb_audio_gb_set_control(struct gb_connection *connection,
+			    u8 control_id, u8 index,
+			    struct gb_audio_ctl_elem_value *value)
+{
+	struct gb_audio_set_control_request req;
+
+	req.control_id = control_id;
+	req.index = index;
+	memcpy(&req.value, value, sizeof(req.value));
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_SET_CONTROL,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_set_control);
+
+int gb_audio_gb_enable_widget(struct gb_connection *connection,
+			      u8 widget_id)
+{
+	struct gb_audio_enable_widget_request req;
+
+	req.widget_id = widget_id;
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_ENABLE_WIDGET,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_enable_widget);
+
+int gb_audio_gb_disable_widget(struct gb_connection *connection,
+			       u8 widget_id)
+{
+	struct gb_audio_disable_widget_request req;
+
+	req.widget_id = widget_id;
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_DISABLE_WIDGET,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_disable_widget);
+
+int gb_audio_gb_get_pcm(struct gb_connection *connection, u16 data_cport,
+			u32 *format, u32 *rate, u8 *channels,
+			u8 *sig_bits)
+{
+	struct gb_audio_get_pcm_request req;
+	struct gb_audio_get_pcm_response resp;
+	int ret;
+
+	req.data_cport = cpu_to_le16(data_cport);
+
+	ret = gb_operation_sync(connection, GB_AUDIO_TYPE_GET_PCM,
+				&req, sizeof(req), &resp, sizeof(resp));
+	if (ret)
+		return ret;
+
+	*format = le32_to_cpu(resp.format);
+	*rate = le32_to_cpu(resp.rate);
+	*channels = resp.channels;
+	*sig_bits = resp.sig_bits;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_get_pcm);
+
+int gb_audio_gb_set_pcm(struct gb_connection *connection, u16 data_cport,
+			u32 format, u32 rate, u8 channels,
+			u8 sig_bits)
+{
+	struct gb_audio_set_pcm_request req;
+
+	req.data_cport = cpu_to_le16(data_cport);
+	req.format = cpu_to_le32(format);
+	req.rate = cpu_to_le32(rate);
+	req.channels = channels;
+	req.sig_bits = sig_bits;
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_SET_PCM,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_set_pcm);
+
+int gb_audio_gb_set_tx_data_size(struct gb_connection *connection,
+				 u16 data_cport, u16 size)
+{
+	struct gb_audio_set_tx_data_size_request req;
+
+	req.data_cport = cpu_to_le16(data_cport);
+	req.size = cpu_to_le16(size);
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_SET_TX_DATA_SIZE,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_set_tx_data_size);
+
+int gb_audio_gb_activate_tx(struct gb_connection *connection,
+			    u16 data_cport)
+{
+	struct gb_audio_activate_tx_request req;
+
+	req.data_cport = cpu_to_le16(data_cport);
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_ACTIVATE_TX,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_activate_tx);
+
+int gb_audio_gb_deactivate_tx(struct gb_connection *connection,
+			      u16 data_cport)
+{
+	struct gb_audio_deactivate_tx_request req;
+
+	req.data_cport = cpu_to_le16(data_cport);
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_DEACTIVATE_TX,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_deactivate_tx);
+
+int gb_audio_gb_set_rx_data_size(struct gb_connection *connection,
+				 u16 data_cport, u16 size)
+{
+	struct gb_audio_set_rx_data_size_request req;
+
+	req.data_cport = cpu_to_le16(data_cport);
+	req.size = cpu_to_le16(size);
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_SET_RX_DATA_SIZE,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_set_rx_data_size);
+
+int gb_audio_gb_activate_rx(struct gb_connection *connection,
+			    u16 data_cport)
+{
+	struct gb_audio_activate_rx_request req;
+
+	req.data_cport = cpu_to_le16(data_cport);
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_ACTIVATE_RX,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_activate_rx);
+
+int gb_audio_gb_deactivate_rx(struct gb_connection *connection,
+			      u16 data_cport)
+{
+	struct gb_audio_deactivate_rx_request req;
+
+	req.data_cport = cpu_to_le16(data_cport);
+
+	return gb_operation_sync(connection, GB_AUDIO_TYPE_DEACTIVATE_RX,
+				 &req, sizeof(req), NULL, 0);
+}
+EXPORT_SYMBOL_GPL(gb_audio_gb_deactivate_rx);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("greybus:audio-gb");
+MODULE_DESCRIPTION("Greybus Audio Device Class Protocol library");
+MODULE_AUTHOR("Mark Greer <mgreer@animalcreek.com>");
diff --git a/drivers/staging/greybus/audio_helper.c b/drivers/staging/greybus/audio_helper.c
new file mode 100644
index 000000000000..b4873c6d6bed
--- /dev/null
+++ b/drivers/staging/greybus/audio_helper.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Audio Sound SoC helper APIs
+ */
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include "audio_helper.h"
+
+#define gbaudio_dapm_for_each_direction(dir) \
+	for ((dir) = SND_SOC_DAPM_DIR_IN; (dir) <= SND_SOC_DAPM_DIR_OUT; \
+		(dir)++)
+
+static void gbaudio_dapm_link_dai_widget(struct snd_soc_dapm_widget *dai_w,
+					 struct snd_soc_card *card)
+{
+	struct snd_soc_dapm_widget *w;
+	struct snd_soc_dapm_widget *src, *sink;
+	struct snd_soc_dai *dai = dai_w->priv;
+
+	/* ...find all widgets with the same stream and link them */
+	list_for_each_entry(w, &card->widgets, list) {
+		if (w->dapm != dai_w->dapm)
+			continue;
+
+		switch (w->id) {
+		case snd_soc_dapm_dai_in:
+		case snd_soc_dapm_dai_out:
+			continue;
+		default:
+			break;
+		}
+
+		if (!w->sname || !strstr(w->sname, dai_w->sname))
+			continue;
+
+		/*
+		 * check if widget is already linked,
+		 * if (w->linked)
+		 *	return;
+		 */
+
+		if (dai_w->id == snd_soc_dapm_dai_in) {
+			src = dai_w;
+			sink = w;
+		} else {
+			src = w;
+			sink = dai_w;
+		}
+		dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name);
+		/* Add the DAPM path and set widget's linked status
+		 * snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL);
+		 * w->linked = 1;
+		 */
+	}
+}
+
+int gbaudio_dapm_link_component_dai_widgets(struct snd_soc_card *card,
+					    struct snd_soc_dapm_context *dapm)
+{
+	struct snd_soc_dapm_widget *dai_w;
+
+	/* For each DAI widget... */
+	list_for_each_entry(dai_w, &card->widgets, list) {
+		if (dai_w->dapm != dapm)
+			continue;
+		switch (dai_w->id) {
+		case snd_soc_dapm_dai_in:
+		case snd_soc_dapm_dai_out:
+			break;
+		default:
+			continue;
+		}
+		gbaudio_dapm_link_dai_widget(dai_w, card);
+	}
+
+	return 0;
+}
+
+static void gbaudio_dapm_free_path(struct snd_soc_dapm_path *path)
+{
+	list_del(&path->list_node[SND_SOC_DAPM_DIR_IN]);
+	list_del(&path->list_node[SND_SOC_DAPM_DIR_OUT]);
+	list_del(&path->list_kcontrol);
+	list_del(&path->list);
+	kfree(path);
+}
+
+static void gbaudio_dapm_free_widget(struct snd_soc_dapm_widget *w)
+{
+	struct snd_soc_dapm_path *p, *next_p;
+	enum snd_soc_dapm_direction dir;
+
+	list_del(&w->list);
+	/*
+	 * remove source and sink paths associated to this widget.
+	 * While removing the path, remove reference to it from both
+	 * source and sink widgets so that path is removed only once.
+	 */
+	gbaudio_dapm_for_each_direction(dir) {
+		snd_soc_dapm_widget_for_each_path_safe(w, dir, p, next_p)
+			gbaudio_dapm_free_path(p);
+	}
+
+	kfree(w->kcontrols);
+	kfree_const(w->name);
+	kfree_const(w->sname);
+	kfree(w);
+}
+
+int gbaudio_dapm_free_controls(struct snd_soc_dapm_context *dapm,
+			       const struct snd_soc_dapm_widget *widget,
+			       int num)
+{
+	int i;
+	struct snd_soc_dapm_widget *w, *tmp_w;
+	struct snd_soc_card *card = snd_soc_dapm_to_card(dapm);
+
+	mutex_lock(&card->dapm_mutex);
+	for (i = 0; i < num; i++) {
+		/* below logic can be optimized to identify widget pointer */
+		w = NULL;
+		list_for_each_entry(tmp_w, &card->widgets, list) {
+			if (tmp_w->dapm == dapm &&
+			    !strcmp(tmp_w->name, widget->name)) {
+				w = tmp_w;
+				break;
+			}
+		}
+		if (!w) {
+			dev_err(card->dev, "%s: widget not found\n",
+				widget->name);
+			widget++;
+			continue;
+		}
+		widget++;
+		gbaudio_dapm_free_widget(w);
+	}
+	mutex_unlock(&card->dapm_mutex);
+	return 0;
+}
+
+static int gbaudio_remove_controls(struct snd_card *card, struct device *dev,
+				   const struct snd_kcontrol_new *controls,
+				   int num_controls, const char *prefix)
+{
+	int i, err;
+
+	for (i = 0; i < num_controls; i++) {
+		const struct snd_kcontrol_new *control = &controls[i];
+		struct snd_ctl_elem_id id;
+
+		if (prefix)
+			snprintf(id.name, sizeof(id.name), "%s %s", prefix,
+				 control->name);
+		else
+			strscpy(id.name, control->name, sizeof(id.name));
+		id.numid = 0;
+		id.iface = control->iface;
+		id.device = control->device;
+		id.subdevice = control->subdevice;
+		id.index = control->index;
+		err = snd_ctl_remove_id(card, &id);
+		if (err < 0)
+			dev_err(dev, "%d: Failed to remove %s\n", err,
+				control->name);
+	}
+	return 0;
+}
+
+int gbaudio_remove_component_controls(struct snd_soc_component *component,
+				      const struct snd_kcontrol_new *controls,
+				      unsigned int num_controls)
+{
+	struct snd_card *card = component->card->snd_card;
+
+	return gbaudio_remove_controls(card, component->dev, controls,
+				       num_controls, component->name_prefix);
+}
diff --git a/drivers/staging/greybus/audio_helper.h b/drivers/staging/greybus/audio_helper.h
new file mode 100644
index 000000000000..5cf1c6d7d3ea
--- /dev/null
+++ b/drivers/staging/greybus/audio_helper.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Audio Sound SoC helper APIs
+ */
+
+#ifndef __LINUX_GBAUDIO_HELPER_H
+#define __LINUX_GBAUDIO_HELPER_H
+
+int gbaudio_dapm_link_component_dai_widgets(struct snd_soc_card *card,
+					    struct snd_soc_dapm_context *dapm);
+int gbaudio_dapm_free_controls(struct snd_soc_dapm_context *dapm,
+			       const struct snd_soc_dapm_widget *widget,
+			       int num);
+int gbaudio_remove_component_controls(struct snd_soc_component *component,
+				      const struct snd_kcontrol_new *controls,
+				      unsigned int num_controls);
+#endif
diff --git a/drivers/staging/greybus/audio_manager.c b/drivers/staging/greybus/audio_manager.c
new file mode 100644
index 000000000000..27ca5f796c5f
--- /dev/null
+++ b/drivers/staging/greybus/audio_manager.c
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus operations
+ *
+ * Copyright 2015-2016 Google Inc.
+ */
+
+#include <linux/string.h>
+#include <linux/sysfs.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/idr.h>
+
+#include "audio_manager.h"
+#include "audio_manager_private.h"
+
+static struct kset *manager_kset;
+
+static LIST_HEAD(modules_list);
+static DECLARE_RWSEM(modules_rwsem);
+static DEFINE_IDA(module_id);
+
+/* helpers */
+static struct gb_audio_manager_module *gb_audio_manager_get_locked(int id)
+{
+	struct gb_audio_manager_module *module;
+
+	if (id < 0)
+		return NULL;
+
+	list_for_each_entry(module, &modules_list, list) {
+		if (module->id == id)
+			return module;
+	}
+
+	return NULL;
+}
+
+/* public API */
+int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc)
+{
+	struct gb_audio_manager_module *module;
+	int id;
+	int err;
+
+	id = ida_alloc(&module_id, GFP_KERNEL);
+	if (id < 0)
+		return id;
+
+	err = gb_audio_manager_module_create(&module, manager_kset,
+					     id, desc);
+	if (err) {
+		ida_free(&module_id, id);
+		return err;
+	}
+
+	/* Add it to the list */
+	down_write(&modules_rwsem);
+	list_add_tail(&module->list, &modules_list);
+	up_write(&modules_rwsem);
+
+	return module->id;
+}
+EXPORT_SYMBOL_GPL(gb_audio_manager_add);
+
+int gb_audio_manager_remove(int id)
+{
+	struct gb_audio_manager_module *module;
+
+	down_write(&modules_rwsem);
+
+	module = gb_audio_manager_get_locked(id);
+	if (!module) {
+		up_write(&modules_rwsem);
+		return -EINVAL;
+	}
+	list_del(&module->list);
+	kobject_put(&module->kobj);
+	up_write(&modules_rwsem);
+	ida_free(&module_id, id);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gb_audio_manager_remove);
+
+void gb_audio_manager_remove_all(void)
+{
+	struct gb_audio_manager_module *module, *next;
+	int is_empty;
+
+	down_write(&modules_rwsem);
+
+	list_for_each_entry_safe(module, next, &modules_list, list) {
+		list_del(&module->list);
+		ida_free(&module_id, module->id);
+		kobject_put(&module->kobj);
+	}
+
+	is_empty = list_empty(&modules_list);
+
+	up_write(&modules_rwsem);
+
+	if (!is_empty)
+		pr_warn("Not all nodes were deleted\n");
+}
+EXPORT_SYMBOL_GPL(gb_audio_manager_remove_all);
+
+struct gb_audio_manager_module *gb_audio_manager_get_module(int id)
+{
+	struct gb_audio_manager_module *module;
+
+	down_read(&modules_rwsem);
+	module = gb_audio_manager_get_locked(id);
+	kobject_get(&module->kobj);
+	up_read(&modules_rwsem);
+	return module;
+}
+EXPORT_SYMBOL_GPL(gb_audio_manager_get_module);
+
+void gb_audio_manager_put_module(struct gb_audio_manager_module *module)
+{
+	kobject_put(&module->kobj);
+}
+EXPORT_SYMBOL_GPL(gb_audio_manager_put_module);
+
+int gb_audio_manager_dump_module(int id)
+{
+	struct gb_audio_manager_module *module;
+
+	down_read(&modules_rwsem);
+	module = gb_audio_manager_get_locked(id);
+	up_read(&modules_rwsem);
+
+	if (!module)
+		return -EINVAL;
+
+	gb_audio_manager_module_dump(module);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gb_audio_manager_dump_module);
+
+void gb_audio_manager_dump_all(void)
+{
+	struct gb_audio_manager_module *module;
+	int count = 0;
+
+	down_read(&modules_rwsem);
+	list_for_each_entry(module, &modules_list, list) {
+		gb_audio_manager_module_dump(module);
+		count++;
+	}
+	up_read(&modules_rwsem);
+
+	pr_info("Number of connected modules: %d\n", count);
+}
+EXPORT_SYMBOL_GPL(gb_audio_manager_dump_all);
+
+/*
+ * module init/deinit
+ */
+static int __init manager_init(void)
+{
+	manager_kset = kset_create_and_add(GB_AUDIO_MANAGER_NAME, NULL,
+					   kernel_kobj);
+	if (!manager_kset)
+		return -ENOMEM;
+
+#ifdef GB_AUDIO_MANAGER_SYSFS
+	gb_audio_manager_sysfs_init(&manager_kset->kobj);
+#endif
+
+	return 0;
+}
+
+static void __exit manager_exit(void)
+{
+	gb_audio_manager_remove_all();
+	kset_unregister(manager_kset);
+	ida_destroy(&module_id);
+}
+
+module_init(manager_init);
+module_exit(manager_exit);
+
+MODULE_DESCRIPTION("Greybus audio operations manager");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Svetlin Ankov <ankov_svetlin@projectara.com>");
diff --git a/drivers/staging/greybus/audio_manager.h b/drivers/staging/greybus/audio_manager.h
new file mode 100644
index 000000000000..be605485a8ce
--- /dev/null
+++ b/drivers/staging/greybus/audio_manager.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus operations
+ *
+ * Copyright 2015-2016 Google Inc.
+ */
+
+#ifndef _GB_AUDIO_MANAGER_H_
+#define _GB_AUDIO_MANAGER_H_
+
+#include <linux/kobject.h>
+#include <linux/list.h>
+
+#define GB_AUDIO_MANAGER_NAME "gb_audio_manager"
+#define GB_AUDIO_MANAGER_MODULE_NAME_LEN 64
+#define GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF "63"
+
+struct gb_audio_manager_module_descriptor {
+	char name[GB_AUDIO_MANAGER_MODULE_NAME_LEN];
+	int vid;
+	int pid;
+	int intf_id;
+	unsigned int ip_devices;
+	unsigned int op_devices;
+};
+
+struct gb_audio_manager_module {
+	struct kobject kobj;
+	struct list_head list;
+	int id;
+	struct gb_audio_manager_module_descriptor desc;
+};
+
+/*
+ * Creates a new gb_audio_manager_module_descriptor, using the specified
+ * descriptor.
+ *
+ * Returns a negative result on error, or the id of the newly created module.
+ *
+ */
+int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc);
+
+/*
+ * Removes a connected gb_audio_manager_module_descriptor for the specified ID.
+ *
+ * Returns zero on success, or a negative value on error.
+ */
+int gb_audio_manager_remove(int id);
+
+/*
+ * Removes all connected gb_audio_modules
+ *
+ * Returns zero on success, or a negative value on error.
+ */
+void gb_audio_manager_remove_all(void);
+
+/*
+ * Retrieves a gb_audio_manager_module_descriptor for the specified id.
+ * Returns the gb_audio_manager_module_descriptor structure,
+ * or NULL if there is no module with the specified ID.
+ */
+struct gb_audio_manager_module *gb_audio_manager_get_module(int id);
+
+/*
+ * Decreases the refcount of the module, obtained by the get function.
+ * Modules are removed via gb_audio_manager_remove
+ */
+void gb_audio_manager_put_module(struct gb_audio_manager_module *module);
+
+/*
+ * Dumps the module for the specified id
+ * Return 0 on success
+ */
+int gb_audio_manager_dump_module(int id);
+
+/*
+ * Dumps all connected modules
+ */
+void gb_audio_manager_dump_all(void);
+
+#endif /* _GB_AUDIO_MANAGER_H_ */
diff --git a/drivers/staging/greybus/audio_manager_module.c b/drivers/staging/greybus/audio_manager_module.c
new file mode 100644
index 000000000000..4a4dfb42f50f
--- /dev/null
+++ b/drivers/staging/greybus/audio_manager_module.c
@@ -0,0 +1,241 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus operations
+ *
+ * Copyright 2015-2016 Google Inc.
+ */
+
+#include <linux/slab.h>
+
+#include "audio_manager.h"
+#include "audio_manager_private.h"
+
+#define to_gb_audio_module_attr(x)	\
+		container_of(x, struct gb_audio_manager_module_attribute, attr)
+
+static inline struct gb_audio_manager_module *to_gb_audio_module(struct kobject *kobj)
+{
+	return container_of(kobj, struct gb_audio_manager_module, kobj);
+}
+
+struct gb_audio_manager_module_attribute {
+	struct attribute attr;
+	ssize_t (*show)(struct gb_audio_manager_module *module,
+			struct gb_audio_manager_module_attribute *attr,
+			char *buf);
+	ssize_t (*store)(struct gb_audio_manager_module *module,
+			 struct gb_audio_manager_module_attribute *attr,
+			 const char *buf, size_t count);
+};
+
+static ssize_t gb_audio_module_attr_show(struct kobject *kobj,
+					 struct attribute *attr, char *buf)
+{
+	struct gb_audio_manager_module_attribute *attribute;
+	struct gb_audio_manager_module *module;
+
+	attribute = to_gb_audio_module_attr(attr);
+	module = to_gb_audio_module(kobj);
+
+	if (!attribute->show)
+		return -EIO;
+
+	return attribute->show(module, attribute, buf);
+}
+
+static ssize_t gb_audio_module_attr_store(struct kobject *kobj,
+					  struct attribute *attr,
+					  const char *buf, size_t len)
+{
+	struct gb_audio_manager_module_attribute *attribute;
+	struct gb_audio_manager_module *module;
+
+	attribute = to_gb_audio_module_attr(attr);
+	module = to_gb_audio_module(kobj);
+
+	if (!attribute->store)
+		return -EIO;
+
+	return attribute->store(module, attribute, buf, len);
+}
+
+static const struct sysfs_ops gb_audio_module_sysfs_ops = {
+	.show = gb_audio_module_attr_show,
+	.store = gb_audio_module_attr_store,
+};
+
+static void gb_audio_module_release(struct kobject *kobj)
+{
+	struct gb_audio_manager_module *module = to_gb_audio_module(kobj);
+
+	pr_info("Destroying audio module #%d\n", module->id);
+	/* TODO -> delete from list */
+	kfree(module);
+}
+
+static ssize_t gb_audio_module_name_show(struct gb_audio_manager_module *module,
+					 struct gb_audio_manager_module_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%s", module->desc.name);
+}
+
+static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute =
+	__ATTR(name, 0664, gb_audio_module_name_show, NULL);
+
+static ssize_t gb_audio_module_vid_show(struct gb_audio_manager_module *module,
+					struct gb_audio_manager_module_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d", module->desc.vid);
+}
+
+static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute =
+	__ATTR(vid, 0664, gb_audio_module_vid_show, NULL);
+
+static ssize_t gb_audio_module_pid_show(struct gb_audio_manager_module *module,
+					struct gb_audio_manager_module_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d", module->desc.pid);
+}
+
+static struct gb_audio_manager_module_attribute gb_audio_module_pid_attribute =
+	__ATTR(pid, 0664, gb_audio_module_pid_show, NULL);
+
+static ssize_t gb_audio_module_intf_id_show(struct gb_audio_manager_module *module,
+					    struct gb_audio_manager_module_attribute *attr,
+					    char *buf)
+{
+	return sprintf(buf, "%d", module->desc.intf_id);
+}
+
+static struct gb_audio_manager_module_attribute
+					gb_audio_module_intf_id_attribute =
+	__ATTR(intf_id, 0664, gb_audio_module_intf_id_show, NULL);
+
+static ssize_t gb_audio_module_ip_devices_show(struct gb_audio_manager_module *module,
+					       struct gb_audio_manager_module_attribute *attr,
+					       char *buf)
+{
+	return sprintf(buf, "0x%X", module->desc.ip_devices);
+}
+
+static struct gb_audio_manager_module_attribute
+					gb_audio_module_ip_devices_attribute =
+	__ATTR(ip_devices, 0664, gb_audio_module_ip_devices_show, NULL);
+
+static ssize_t gb_audio_module_op_devices_show(struct gb_audio_manager_module *module,
+					       struct gb_audio_manager_module_attribute *attr,
+					       char *buf)
+{
+	return sprintf(buf, "0x%X", module->desc.op_devices);
+}
+
+static struct gb_audio_manager_module_attribute
+					gb_audio_module_op_devices_attribute =
+	__ATTR(op_devices, 0664, gb_audio_module_op_devices_show, NULL);
+
+static struct attribute *gb_audio_module_default_attrs[] = {
+	&gb_audio_module_name_attribute.attr,
+	&gb_audio_module_vid_attribute.attr,
+	&gb_audio_module_pid_attribute.attr,
+	&gb_audio_module_intf_id_attribute.attr,
+	&gb_audio_module_ip_devices_attribute.attr,
+	&gb_audio_module_op_devices_attribute.attr,
+	NULL,   /* need to NULL terminate the list of attributes */
+};
+ATTRIBUTE_GROUPS(gb_audio_module_default);
+
+static const struct kobj_type gb_audio_module_type = {
+	.sysfs_ops = &gb_audio_module_sysfs_ops,
+	.release = gb_audio_module_release,
+	.default_groups = gb_audio_module_default_groups,
+};
+
+static void send_add_uevent(struct gb_audio_manager_module *module)
+{
+	char name_string[128];
+	char vid_string[64];
+	char pid_string[64];
+	char intf_id_string[64];
+	char ip_devices_string[64];
+	char op_devices_string[64];
+
+	char *envp[] = {
+		name_string,
+		vid_string,
+		pid_string,
+		intf_id_string,
+		ip_devices_string,
+		op_devices_string,
+		NULL
+	};
+
+	snprintf(name_string, 128, "NAME=%s", module->desc.name);
+	snprintf(vid_string, 64, "VID=%d", module->desc.vid);
+	snprintf(pid_string, 64, "PID=%d", module->desc.pid);
+	snprintf(intf_id_string, 64, "INTF_ID=%d", module->desc.intf_id);
+	snprintf(ip_devices_string, 64, "I/P DEVICES=0x%X",
+		 module->desc.ip_devices);
+	snprintf(op_devices_string, 64, "O/P DEVICES=0x%X",
+		 module->desc.op_devices);
+
+	kobject_uevent_env(&module->kobj, KOBJ_ADD, envp);
+}
+
+int gb_audio_manager_module_create(struct gb_audio_manager_module **module,
+				   struct kset *manager_kset,
+				   int id, struct gb_audio_manager_module_descriptor *desc)
+{
+	int err;
+	struct gb_audio_manager_module *m;
+
+	m = kzalloc(sizeof(*m), GFP_ATOMIC);
+	if (!m)
+		return -ENOMEM;
+
+	/* Initialize the node */
+	INIT_LIST_HEAD(&m->list);
+
+	/* Set the module id */
+	m->id = id;
+
+	/* Copy the provided descriptor */
+	memcpy(&m->desc, desc, sizeof(*desc));
+
+	/* set the kset */
+	m->kobj.kset = manager_kset;
+
+	/*
+	 * Initialize and add the kobject to the kernel.  All the default files
+	 * will be created here.  As we have already specified a kset for this
+	 * kobject, we don't have to set a parent for the kobject, the kobject
+	 * will be placed beneath that kset automatically.
+	 */
+	err = kobject_init_and_add(&m->kobj, &gb_audio_module_type, NULL, "%d",
+				   id);
+	if (err) {
+		pr_err("failed initializing kobject for audio module #%d\n", id);
+		kobject_put(&m->kobj);
+		return err;
+	}
+
+	/*
+	 * Notify the object was created
+	 */
+	send_add_uevent(m);
+
+	*module = m;
+	pr_info("Created audio module #%d\n", id);
+	return 0;
+}
+
+void gb_audio_manager_module_dump(struct gb_audio_manager_module *module)
+{
+	pr_info("audio module #%d name=%s vid=%d pid=%d intf_id=%d i/p devices=0x%X o/p devices=0x%X\n",
+		module->id,
+		module->desc.name,
+		module->desc.vid,
+		module->desc.pid,
+		module->desc.intf_id,
+		module->desc.ip_devices,
+		module->desc.op_devices);
+}
diff --git a/drivers/staging/greybus/audio_manager_private.h b/drivers/staging/greybus/audio_manager_private.h
new file mode 100644
index 000000000000..daca5b48b986
--- /dev/null
+++ b/drivers/staging/greybus/audio_manager_private.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus operations
+ *
+ * Copyright 2015-2016 Google Inc.
+ */
+
+#ifndef _GB_AUDIO_MANAGER_PRIVATE_H_
+#define _GB_AUDIO_MANAGER_PRIVATE_H_
+
+#include <linux/kobject.h>
+
+#include "audio_manager.h"
+
+int gb_audio_manager_module_create(struct gb_audio_manager_module **module,
+				   struct kset *manager_kset, int id,
+				   struct gb_audio_manager_module_descriptor *desc);
+
+/* module destroyed via kobject_put */
+
+void gb_audio_manager_module_dump(struct gb_audio_manager_module *module);
+
+/* sysfs control */
+void gb_audio_manager_sysfs_init(struct kobject *kobj);
+
+#endif /* _GB_AUDIO_MANAGER_PRIVATE_H_ */
diff --git a/drivers/staging/greybus/audio_manager_sysfs.c b/drivers/staging/greybus/audio_manager_sysfs.c
new file mode 100644
index 000000000000..fcd518f9540c
--- /dev/null
+++ b/drivers/staging/greybus/audio_manager_sysfs.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus operations
+ *
+ * Copyright 2015-2016 Google Inc.
+ */
+
+#include <linux/string.h>
+#include <linux/sysfs.h>
+
+#include "audio_manager.h"
+#include "audio_manager_private.h"
+
+static ssize_t manager_sysfs_add_store(struct kobject *kobj,
+				       struct kobj_attribute *attr,
+				       const char *buf, size_t count)
+{
+	struct gb_audio_manager_module_descriptor desc = { {0} };
+
+	int num = sscanf(buf,
+			"name=%" GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF
+			"s vid=%d pid=%d intf_id=%d i/p devices=0x%X o/p devices=0x%X",
+			desc.name, &desc.vid, &desc.pid, &desc.intf_id,
+			&desc.ip_devices, &desc.op_devices);
+
+	if (num != 7)
+		return -EINVAL;
+
+	num = gb_audio_manager_add(&desc);
+	if (num < 0)
+		return -EINVAL;
+
+	return count;
+}
+
+static struct kobj_attribute manager_add_attribute =
+	__ATTR(add, 0664, NULL, manager_sysfs_add_store);
+
+static ssize_t manager_sysfs_remove_store(struct kobject *kobj,
+					  struct kobj_attribute *attr,
+					  const char *buf, size_t count)
+{
+	int id;
+
+	int num = kstrtoint(buf, 10, &id);
+
+	if (num != 1)
+		return -EINVAL;
+
+	num = gb_audio_manager_remove(id);
+	if (num)
+		return num;
+
+	return count;
+}
+
+static struct kobj_attribute manager_remove_attribute =
+	__ATTR(remove, 0664, NULL, manager_sysfs_remove_store);
+
+static ssize_t manager_sysfs_dump_store(struct kobject *kobj,
+					struct kobj_attribute *attr,
+					const char *buf, size_t count)
+{
+	int id;
+
+	int num = kstrtoint(buf, 10, &id);
+
+	if (num == 1) {
+		num = gb_audio_manager_dump_module(id);
+		if (num)
+			return num;
+	} else if (!strncmp("all", buf, 3)) {
+		gb_audio_manager_dump_all();
+	} else {
+		return -EINVAL;
+	}
+
+	return count;
+}
+
+static struct kobj_attribute manager_dump_attribute =
+	__ATTR(dump, 0664, NULL, manager_sysfs_dump_store);
+
+static void manager_sysfs_init_attribute(struct kobject *kobj,
+					 struct kobj_attribute *kattr)
+{
+	int err;
+
+	err = sysfs_create_file(kobj, &kattr->attr);
+	if (err) {
+		pr_warn("creating the sysfs entry for %s failed: %d\n",
+			kattr->attr.name, err);
+	}
+}
+
+void gb_audio_manager_sysfs_init(struct kobject *kobj)
+{
+	manager_sysfs_init_attribute(kobj, &manager_add_attribute);
+	manager_sysfs_init_attribute(kobj, &manager_remove_attribute);
+	manager_sysfs_init_attribute(kobj, &manager_dump_attribute);
+}
diff --git a/drivers/staging/greybus/audio_module.c b/drivers/staging/greybus/audio_module.c
new file mode 100644
index 000000000000..12c376c477b3
--- /dev/null
+++ b/drivers/staging/greybus/audio_module.c
@@ -0,0 +1,479 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus audio driver
+ * Copyright 2015 Google Inc.
+ * Copyright 2015 Linaro Ltd.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#include "audio_codec.h"
+#include "audio_apbridgea.h"
+#include "audio_manager.h"
+
+/*
+ * gb_snd management functions
+ */
+
+static int gbaudio_request_jack(struct gbaudio_module_info *module,
+				struct gb_audio_jack_event_request *req)
+{
+	int report;
+	struct snd_jack *jack = module->headset.jack.jack;
+	struct snd_jack *btn_jack = module->button.jack.jack;
+
+	if (!jack) {
+		dev_err_ratelimited(module->dev,
+				    "Invalid jack event received:type: %u, event: %u\n",
+				    req->jack_attribute, req->event);
+		return -EINVAL;
+	}
+
+	dev_warn_ratelimited(module->dev,
+			     "Jack Event received: type: %u, event: %u\n",
+			     req->jack_attribute, req->event);
+
+	if (req->event == GB_AUDIO_JACK_EVENT_REMOVAL) {
+		module->jack_type = 0;
+		if (btn_jack && module->button_status) {
+			snd_soc_jack_report(&module->button.jack, 0,
+					    module->button_mask);
+			module->button_status = 0;
+		}
+		snd_soc_jack_report(&module->headset.jack, 0,
+				    module->jack_mask);
+		return 0;
+	}
+
+	report = req->jack_attribute & module->jack_mask;
+	if (!report) {
+		dev_err_ratelimited(module->dev,
+				    "Invalid jack event received:type: %u, event: %u\n",
+				    req->jack_attribute, req->event);
+		return -EINVAL;
+	}
+
+	if (module->jack_type)
+		dev_warn_ratelimited(module->dev,
+				     "Modifying jack from %d to %d\n",
+				     module->jack_type, report);
+
+	module->jack_type = report;
+	snd_soc_jack_report(&module->headset.jack, report, module->jack_mask);
+
+	return 0;
+}
+
+static int gbaudio_request_button(struct gbaudio_module_info *module,
+				  struct gb_audio_button_event_request *req)
+{
+	int soc_button_id, report;
+	struct snd_jack *btn_jack = module->button.jack.jack;
+
+	if (!btn_jack) {
+		dev_err_ratelimited(module->dev,
+				    "Invalid button event received:type: %u, event: %u\n",
+				    req->button_id, req->event);
+		return -EINVAL;
+	}
+
+	dev_warn_ratelimited(module->dev,
+			     "Button Event received: id: %u, event: %u\n",
+			     req->button_id, req->event);
+
+	/* currently supports 4 buttons only */
+	if (!module->jack_type) {
+		dev_err_ratelimited(module->dev,
+				    "Jack not present. Bogus event!!\n");
+		return -EINVAL;
+	}
+
+	report = module->button_status & module->button_mask;
+	soc_button_id = 0;
+
+	switch (req->button_id) {
+	case 1:
+		soc_button_id = SND_JACK_BTN_0 & module->button_mask;
+		break;
+
+	case 2:
+		soc_button_id = SND_JACK_BTN_1 & module->button_mask;
+		break;
+
+	case 3:
+		soc_button_id = SND_JACK_BTN_2 & module->button_mask;
+		break;
+
+	case 4:
+		soc_button_id = SND_JACK_BTN_3 & module->button_mask;
+		break;
+	}
+
+	if (!soc_button_id) {
+		dev_err_ratelimited(module->dev,
+				    "Invalid button request received\n");
+		return -EINVAL;
+	}
+
+	if (req->event == GB_AUDIO_BUTTON_EVENT_PRESS)
+		report = report | soc_button_id;
+	else
+		report = report & ~soc_button_id;
+
+	module->button_status = report;
+
+	snd_soc_jack_report(&module->button.jack, report, module->button_mask);
+
+	return 0;
+}
+
+static int gbaudio_request_stream(struct gbaudio_module_info *module,
+				  struct gb_audio_streaming_event_request *req)
+{
+	dev_warn(module->dev, "Audio Event received: cport: %u, event: %u\n",
+		 le16_to_cpu(req->data_cport), req->event);
+
+	return 0;
+}
+
+static int gbaudio_codec_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gbaudio_module_info *module =
+		greybus_get_drvdata(connection->bundle);
+	struct gb_operation_msg_hdr *header = op->request->header;
+	struct gb_audio_streaming_event_request *stream_req;
+	struct gb_audio_jack_event_request *jack_req;
+	struct gb_audio_button_event_request *button_req;
+	int ret;
+
+	switch (header->type) {
+	case GB_AUDIO_TYPE_STREAMING_EVENT:
+		stream_req = op->request->payload;
+		ret = gbaudio_request_stream(module, stream_req);
+		break;
+
+	case GB_AUDIO_TYPE_JACK_EVENT:
+		jack_req = op->request->payload;
+		ret = gbaudio_request_jack(module, jack_req);
+		break;
+
+	case GB_AUDIO_TYPE_BUTTON_EVENT:
+		button_req = op->request->payload;
+		ret = gbaudio_request_button(module, button_req);
+		break;
+
+	default:
+		dev_err_ratelimited(&connection->bundle->dev,
+				    "Invalid Audio Event received\n");
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+static int gb_audio_add_mgmt_connection(struct gbaudio_module_info *gbmodule,
+					struct greybus_descriptor_cport *cport_desc,
+					struct gb_bundle *bundle)
+{
+	struct gb_connection *connection;
+
+	/* Management Cport */
+	if (gbmodule->mgmt_connection) {
+		dev_err(&bundle->dev,
+			"Can't have multiple Management connections\n");
+		return -ENODEV;
+	}
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  gbaudio_codec_request_handler);
+	if (IS_ERR(connection))
+		return PTR_ERR(connection);
+
+	greybus_set_drvdata(bundle, gbmodule);
+	gbmodule->mgmt_connection = connection;
+
+	return 0;
+}
+
+static int gb_audio_add_data_connection(struct gbaudio_module_info *gbmodule,
+					struct greybus_descriptor_cport *cport_desc,
+					struct gb_bundle *bundle)
+{
+	struct gb_connection *connection;
+	struct gbaudio_data_connection *dai;
+
+	dai = devm_kzalloc(gbmodule->dev, sizeof(*dai), GFP_KERNEL);
+	if (!dai)
+		return -ENOMEM;
+
+	connection = gb_connection_create_offloaded(bundle,
+						    le16_to_cpu(cport_desc->id),
+						    GB_CONNECTION_FLAG_CSD);
+	if (IS_ERR(connection)) {
+		devm_kfree(gbmodule->dev, dai);
+		return PTR_ERR(connection);
+	}
+
+	greybus_set_drvdata(bundle, gbmodule);
+	dai->id = 0;
+	dai->data_cport = cpu_to_le16(connection->intf_cport_id);
+	dai->connection = connection;
+	list_add(&dai->list, &gbmodule->data_list);
+
+	return 0;
+}
+
+/*
+ * This is the basic hook get things initialized and registered w/ gb
+ */
+
+static int gb_audio_probe(struct gb_bundle *bundle,
+			  const struct greybus_bundle_id *id)
+{
+	struct device *dev = &bundle->dev;
+	struct gbaudio_module_info *gbmodule;
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_audio_manager_module_descriptor desc;
+	struct gbaudio_data_connection *dai, *_dai;
+	int ret, i;
+	struct gb_audio_topology *topology;
+
+	/* There should be at least one Management and one Data cport */
+	if (bundle->num_cports < 2)
+		return -ENODEV;
+
+	/*
+	 * There can be only one Management connection and any number of data
+	 * connections.
+	 */
+	gbmodule = devm_kzalloc(dev, sizeof(*gbmodule), GFP_KERNEL);
+	if (!gbmodule)
+		return -ENOMEM;
+
+	gbmodule->num_data_connections = bundle->num_cports - 1;
+	INIT_LIST_HEAD(&gbmodule->data_list);
+	INIT_LIST_HEAD(&gbmodule->widget_list);
+	INIT_LIST_HEAD(&gbmodule->ctl_list);
+	INIT_LIST_HEAD(&gbmodule->widget_ctl_list);
+	INIT_LIST_HEAD(&gbmodule->jack_list);
+	gbmodule->dev = dev;
+	snprintf(gbmodule->name, sizeof(gbmodule->name), "%s.%s", dev->driver->name,
+		 dev_name(dev));
+	greybus_set_drvdata(bundle, gbmodule);
+
+	/* Create all connections */
+	for (i = 0; i < bundle->num_cports; i++) {
+		cport_desc = &bundle->cport_desc[i];
+
+		switch (cport_desc->protocol_id) {
+		case GREYBUS_PROTOCOL_AUDIO_MGMT:
+			ret = gb_audio_add_mgmt_connection(gbmodule, cport_desc,
+							   bundle);
+			if (ret)
+				goto destroy_connections;
+			break;
+		case GREYBUS_PROTOCOL_AUDIO_DATA:
+			ret = gb_audio_add_data_connection(gbmodule, cport_desc,
+							   bundle);
+			if (ret)
+				goto destroy_connections;
+			break;
+		default:
+			dev_err(dev, "Unsupported protocol: 0x%02x\n",
+				cport_desc->protocol_id);
+			ret = -ENODEV;
+			goto destroy_connections;
+		}
+	}
+
+	/* There must be a management cport */
+	if (!gbmodule->mgmt_connection) {
+		ret = -EINVAL;
+		dev_err(dev, "Missing management connection\n");
+		goto destroy_connections;
+	}
+
+	/* Initialize management connection */
+	ret = gb_connection_enable(gbmodule->mgmt_connection);
+	if (ret) {
+		dev_err(dev, "%d: Error while enabling mgmt connection\n", ret);
+		goto destroy_connections;
+	}
+	gbmodule->dev_id = gbmodule->mgmt_connection->intf->interface_id;
+
+	/*
+	 * FIXME: malloc for topology happens via audio_gb driver
+	 * should be done within codec driver itself
+	 */
+	ret = gb_audio_gb_get_topology(gbmodule->mgmt_connection, &topology);
+	if (ret) {
+		dev_err(dev, "%d:Error while fetching topology\n", ret);
+		goto disable_connection;
+	}
+
+	/* process topology data */
+	ret = gbaudio_tplg_parse_data(gbmodule, topology);
+	if (ret) {
+		dev_err(dev, "%d:Error while parsing topology data\n",
+			ret);
+		goto free_topology;
+	}
+	gbmodule->topology = topology;
+
+	/* Initialize data connections */
+	list_for_each_entry(dai, &gbmodule->data_list, list) {
+		ret = gb_connection_enable(dai->connection);
+		if (ret) {
+			dev_err(dev,
+				"%d:Error while enabling %d:data connection\n",
+				ret, le16_to_cpu(dai->data_cport));
+			goto disable_data_connection;
+		}
+	}
+
+	/* register module with gbcodec */
+	ret = gbaudio_register_module(gbmodule);
+	if (ret)
+		goto disable_data_connection;
+
+	/* inform above layer for uevent */
+	dev_dbg(dev, "Inform set_event:%d to above layer\n", 1);
+	/* prepare for the audio manager */
+	strscpy(desc.name, gbmodule->name, sizeof(desc.name));
+	desc.vid = 2; /* todo */
+	desc.pid = 3; /* todo */
+	desc.intf_id = gbmodule->dev_id;
+	desc.op_devices = gbmodule->op_devices;
+	desc.ip_devices = gbmodule->ip_devices;
+	gbmodule->manager_id = gb_audio_manager_add(&desc);
+
+	dev_dbg(dev, "Add GB Audio device:%s\n", gbmodule->name);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+
+disable_data_connection:
+	list_for_each_entry_safe(dai, _dai, &gbmodule->data_list, list)
+		gb_connection_disable(dai->connection);
+	gbaudio_tplg_release(gbmodule);
+	gbmodule->topology = NULL;
+
+free_topology:
+	kfree(topology);
+
+disable_connection:
+	gb_connection_disable(gbmodule->mgmt_connection);
+
+destroy_connections:
+	list_for_each_entry_safe(dai, _dai, &gbmodule->data_list, list) {
+		gb_connection_destroy(dai->connection);
+		list_del(&dai->list);
+		devm_kfree(dev, dai);
+	}
+
+	if (gbmodule->mgmt_connection)
+		gb_connection_destroy(gbmodule->mgmt_connection);
+
+	devm_kfree(dev, gbmodule);
+
+	return ret;
+}
+
+static void gb_audio_disconnect(struct gb_bundle *bundle)
+{
+	struct gbaudio_module_info *gbmodule = greybus_get_drvdata(bundle);
+	struct gbaudio_data_connection *dai, *_dai;
+
+	gb_pm_runtime_get_sync(bundle);
+
+	/* cleanup module related resources first */
+	gbaudio_unregister_module(gbmodule);
+
+	/* inform uevent to above layers */
+	gb_audio_manager_remove(gbmodule->manager_id);
+
+	gbaudio_tplg_release(gbmodule);
+	kfree(gbmodule->topology);
+	gbmodule->topology = NULL;
+	gb_connection_disable(gbmodule->mgmt_connection);
+	list_for_each_entry_safe(dai, _dai, &gbmodule->data_list, list) {
+		gb_connection_disable(dai->connection);
+		gb_connection_destroy(dai->connection);
+		list_del(&dai->list);
+		devm_kfree(gbmodule->dev, dai);
+	}
+	gb_connection_destroy(gbmodule->mgmt_connection);
+	gbmodule->mgmt_connection = NULL;
+
+	devm_kfree(&bundle->dev, gbmodule);
+}
+
+static const struct greybus_bundle_id gb_audio_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_AUDIO) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_audio_id_table);
+
+#ifdef CONFIG_PM
+static int gb_audio_suspend(struct device *dev)
+{
+	struct gb_bundle *bundle = to_gb_bundle(dev);
+	struct gbaudio_module_info *gbmodule = greybus_get_drvdata(bundle);
+	struct gbaudio_data_connection *dai;
+
+	list_for_each_entry(dai, &gbmodule->data_list, list)
+		gb_connection_disable(dai->connection);
+
+	gb_connection_disable(gbmodule->mgmt_connection);
+
+	return 0;
+}
+
+static int gb_audio_resume(struct device *dev)
+{
+	struct gb_bundle *bundle = to_gb_bundle(dev);
+	struct gbaudio_module_info *gbmodule = greybus_get_drvdata(bundle);
+	struct gbaudio_data_connection *dai;
+	int ret;
+
+	ret = gb_connection_enable(gbmodule->mgmt_connection);
+	if (ret) {
+		dev_err(dev, "%d:Error while enabling mgmt connection\n", ret);
+		return ret;
+	}
+
+	list_for_each_entry(dai, &gbmodule->data_list, list) {
+		ret = gb_connection_enable(dai->connection);
+		if (ret) {
+			dev_err(dev,
+				"%d:Error while enabling %d:data connection\n",
+				ret, le16_to_cpu(dai->data_cport));
+			return ret;
+		}
+	}
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gb_audio_pm_ops = {
+	SET_RUNTIME_PM_OPS(gb_audio_suspend, gb_audio_resume, NULL)
+};
+
+static struct greybus_driver gb_audio_driver = {
+	.name		= "gb-audio",
+	.probe		= gb_audio_probe,
+	.disconnect	= gb_audio_disconnect,
+	.id_table	= gb_audio_id_table,
+	.driver.pm	= &gb_audio_pm_ops,
+};
+module_greybus_driver(gb_audio_driver);
+
+MODULE_DESCRIPTION("Greybus Audio module driver");
+MODULE_AUTHOR("Vaibhav Agarwal <vaibhav.agarwal@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:gbaudio-module");
diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
new file mode 100644
index 000000000000..76146f91cddc
--- /dev/null
+++ b/drivers/staging/greybus/audio_topology.c
@@ -0,0 +1,1443 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus audio driver
+ * Copyright 2015-2016 Google Inc.
+ * Copyright 2015-2016 Linaro Ltd.
+ */
+
+#include <linux/greybus.h>
+#include "audio_codec.h"
+
+#define GBAUDIO_INVALID_ID	0xFF
+
+struct gbaudio_ctl_pvt {
+	unsigned int ctl_id;
+	unsigned int data_cport;
+	unsigned int access;
+	unsigned int vcount;
+	struct gb_audio_ctl_elem_info *info;
+};
+
+static struct gbaudio_module_info *find_gb_module(struct gbaudio_codec_info *codec,
+						  char const *name)
+{
+	int dev_id;
+	char begin[NAME_SIZE];
+	struct gbaudio_module_info *module;
+
+	if (!name)
+		return NULL;
+
+	if (sscanf(name, "%s %d", begin, &dev_id) != 2)
+		return NULL;
+
+	dev_dbg(codec->dev, "%s:Find module#%d\n", __func__, dev_id);
+
+	mutex_lock(&codec->lock);
+	list_for_each_entry(module, &codec->module_list, list) {
+		if (module->dev_id == dev_id) {
+			mutex_unlock(&codec->lock);
+			return module;
+		}
+	}
+	mutex_unlock(&codec->lock);
+	dev_warn(codec->dev, "%s: module#%d missing in codec list\n", name,
+		 dev_id);
+	return NULL;
+}
+
+static const char *gbaudio_map_controlid(struct gbaudio_module_info *module,
+					 __u8 control_id, __u8 index)
+{
+	struct gbaudio_control *control;
+
+	if (control_id == GBAUDIO_INVALID_ID)
+		return NULL;
+
+	list_for_each_entry(control, &module->ctl_list, list) {
+		if (control->id == control_id) {
+			if (index == GBAUDIO_INVALID_ID)
+				return control->name;
+			if (index >= control->items)
+				return NULL;
+			return control->texts[index];
+		}
+	}
+	list_for_each_entry(control, &module->widget_ctl_list, list) {
+		if (control->id == control_id) {
+			if (index == GBAUDIO_INVALID_ID)
+				return control->name;
+			if (index >= control->items)
+				return NULL;
+			return control->texts[index];
+		}
+	}
+	return NULL;
+}
+
+static int gbaudio_map_controlname(struct gbaudio_module_info *module,
+				   const char *name)
+{
+	struct gbaudio_control *control;
+
+	list_for_each_entry(control, &module->ctl_list, list) {
+		if (!strncmp(control->name, name, NAME_SIZE))
+			return control->id;
+	}
+
+	dev_warn(module->dev, "%s: missing in modules controls list\n", name);
+
+	return -EINVAL;
+}
+
+static int gbaudio_map_wcontrolname(struct gbaudio_module_info *module,
+				    const char *name)
+{
+	struct gbaudio_control *control;
+
+	list_for_each_entry(control, &module->widget_ctl_list, list) {
+		if (!strncmp(control->wname, name, NAME_SIZE))
+			return control->id;
+	}
+	dev_warn(module->dev, "%s: missing in modules controls list\n", name);
+
+	return -EINVAL;
+}
+
+static int gbaudio_map_widgetname(struct gbaudio_module_info *module,
+				  const char *name)
+{
+	struct gbaudio_widget *widget;
+
+	list_for_each_entry(widget, &module->widget_list, list) {
+		if (!strncmp(widget->name, name, NAME_SIZE))
+			return widget->id;
+	}
+	dev_warn(module->dev, "%s: missing in modules widgets list\n", name);
+
+	return -EINVAL;
+}
+
+static const char *gbaudio_map_widgetid(struct gbaudio_module_info *module,
+					__u8 widget_id)
+{
+	struct gbaudio_widget *widget;
+
+	list_for_each_entry(widget, &module->widget_list, list) {
+		if (widget->id == widget_id)
+			return widget->name;
+	}
+	return NULL;
+}
+
+static const char **gb_generate_enum_strings(struct gbaudio_module_info *gb,
+					     struct gb_audio_enumerated *gbenum)
+{
+	const char **strings;
+	int i;
+	unsigned int items;
+	__u8 *data;
+
+	items = le32_to_cpu(gbenum->items);
+	strings = devm_kcalloc(gb->dev, items, sizeof(char *), GFP_KERNEL);
+	if (!strings)
+		return NULL;
+
+	data = gbenum->names;
+
+	for (i = 0; i < items; i++) {
+		strings[i] = (const char *)data;
+		while (*data != '\0')
+			data++;
+		data++;
+	}
+
+	return strings;
+}
+
+static int gbcodec_mixer_ctl_info(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_info *uinfo)
+{
+	unsigned int max;
+	const char *name;
+	struct gbaudio_ctl_pvt *data;
+	struct gb_audio_ctl_elem_info *info;
+	struct gbaudio_module_info *module;
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct gbaudio_codec_info *gbcodec = snd_soc_component_get_drvdata(comp);
+
+	dev_dbg(comp->dev, "Entered %s:%s\n", __func__, kcontrol->id.name);
+	data = (struct gbaudio_ctl_pvt *)kcontrol->private_value;
+	info = (struct gb_audio_ctl_elem_info *)data->info;
+
+	if (!info) {
+		dev_err(comp->dev, "NULL info for %s\n", uinfo->id.name);
+		return -EINVAL;
+	}
+
+	/* update uinfo */
+	uinfo->access = data->access;
+	uinfo->count = data->vcount;
+	uinfo->type = (__force snd_ctl_elem_type_t)info->type;
+
+	switch (info->type) {
+	case GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN:
+	case GB_AUDIO_CTL_ELEM_TYPE_INTEGER:
+		uinfo->value.integer.min = le32_to_cpu(info->value.integer.min);
+		uinfo->value.integer.max = le32_to_cpu(info->value.integer.max);
+		break;
+	case GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED:
+		max = le32_to_cpu(info->value.enumerated.items);
+		uinfo->value.enumerated.items = max;
+		if (uinfo->value.enumerated.item > max - 1)
+			uinfo->value.enumerated.item = max - 1;
+		module = find_gb_module(gbcodec, kcontrol->id.name);
+		if (!module)
+			return -EINVAL;
+		name = gbaudio_map_controlid(module, data->ctl_id,
+					     uinfo->value.enumerated.item);
+		strscpy(uinfo->value.enumerated.name, name, sizeof(uinfo->value.enumerated.name));
+		break;
+	default:
+		dev_err(comp->dev, "Invalid type: %d for %s:kcontrol\n",
+			info->type, kcontrol->id.name);
+		break;
+	}
+	return 0;
+}
+
+static int gbcodec_mixer_ctl_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	int ret;
+	struct gb_audio_ctl_elem_info *info;
+	struct gbaudio_ctl_pvt *data;
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct gbaudio_module_info *module;
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct gbaudio_codec_info *gb = snd_soc_component_get_drvdata(comp);
+	struct gb_bundle *bundle;
+
+	dev_dbg(comp->dev, "Entered %s:%s\n", __func__, kcontrol->id.name);
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	data = (struct gbaudio_ctl_pvt *)kcontrol->private_value;
+	info = (struct gb_audio_ctl_elem_info *)data->info;
+	bundle = to_gb_bundle(module->dev);
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_get_control(module->mgmt_connection, data->ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	if (ret) {
+		dev_err_ratelimited(comp->dev, "%d:Error in %s for %s\n", ret,
+				    __func__, kcontrol->id.name);
+		return ret;
+	}
+
+	/* update ucontrol */
+	switch (info->type) {
+	case GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN:
+	case GB_AUDIO_CTL_ELEM_TYPE_INTEGER:
+		ucontrol->value.integer.value[0] =
+			le32_to_cpu(gbvalue.value.integer_value[0]);
+		if (data->vcount == 2)
+			ucontrol->value.integer.value[1] =
+				le32_to_cpu(gbvalue.value.integer_value[1]);
+		break;
+	case GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED:
+		ucontrol->value.enumerated.item[0] =
+			le32_to_cpu(gbvalue.value.enumerated_item[0]);
+		if (data->vcount == 2)
+			ucontrol->value.enumerated.item[1] =
+				le32_to_cpu(gbvalue.value.enumerated_item[1]);
+		break;
+	default:
+		dev_err(comp->dev, "Invalid type: %d for %s:kcontrol\n",
+			info->type, kcontrol->id.name);
+		ret = -EINVAL;
+		break;
+	}
+	return ret;
+}
+
+static int gbcodec_mixer_ctl_put(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	int ret = 0;
+	struct gb_audio_ctl_elem_info *info;
+	struct gbaudio_ctl_pvt *data;
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct gbaudio_module_info *module;
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct gbaudio_codec_info *gb = snd_soc_component_get_drvdata(comp);
+	struct gb_bundle *bundle;
+
+	dev_dbg(comp->dev, "Entered %s:%s\n", __func__, kcontrol->id.name);
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	data = (struct gbaudio_ctl_pvt *)kcontrol->private_value;
+	info = (struct gb_audio_ctl_elem_info *)data->info;
+	bundle = to_gb_bundle(module->dev);
+
+	/* update ucontrol */
+	switch (info->type) {
+	case GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN:
+	case GB_AUDIO_CTL_ELEM_TYPE_INTEGER:
+		gbvalue.value.integer_value[0] =
+			cpu_to_le32(ucontrol->value.integer.value[0]);
+		if (data->vcount == 2)
+			gbvalue.value.integer_value[1] =
+				cpu_to_le32(ucontrol->value.integer.value[1]);
+		break;
+	case GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED:
+		gbvalue.value.enumerated_item[0] =
+			cpu_to_le32(ucontrol->value.enumerated.item[0]);
+		if (data->vcount == 2)
+			gbvalue.value.enumerated_item[1] =
+				cpu_to_le32(ucontrol->value.enumerated.item[1]);
+		break;
+	default:
+		dev_err(comp->dev, "Invalid type: %d for %s:kcontrol\n",
+			info->type, kcontrol->id.name);
+		ret = -EINVAL;
+		break;
+	}
+
+	if (ret)
+		return ret;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_set_control(module->mgmt_connection, data->ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	if (ret) {
+		dev_err_ratelimited(comp->dev, "%d:Error in %s for %s\n", ret,
+				    __func__, kcontrol->id.name);
+	}
+
+	return ret;
+}
+
+#define SOC_MIXER_GB(xname, kcount, data) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.count = kcount, .info = gbcodec_mixer_ctl_info, \
+	.get = gbcodec_mixer_ctl_get, .put = gbcodec_mixer_ctl_put, \
+	.private_value = (unsigned long)data }
+
+/*
+ * although below callback functions seems redundant to above functions.
+ * same are kept to allow provision for different handling in case
+ * of DAPM related sequencing, etc.
+ */
+static int gbcodec_mixer_dapm_ctl_info(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_info *uinfo)
+{
+	int platform_max, platform_min;
+	struct gbaudio_ctl_pvt *data;
+	struct gb_audio_ctl_elem_info *info;
+
+	data = (struct gbaudio_ctl_pvt *)kcontrol->private_value;
+	info = (struct gb_audio_ctl_elem_info *)data->info;
+
+	/* update uinfo */
+	platform_max = le32_to_cpu(info->value.integer.max);
+	platform_min = le32_to_cpu(info->value.integer.min);
+
+	if (platform_max == 1 &&
+	    !strnstr(kcontrol->id.name, " Volume", sizeof(kcontrol->id.name)))
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	else
+		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+
+	uinfo->count = data->vcount;
+	uinfo->value.integer.min = platform_min;
+	uinfo->value.integer.max = platform_max;
+
+	return 0;
+}
+
+static int gbcodec_mixer_dapm_ctl_get(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	int ret;
+	struct gbaudio_ctl_pvt *data;
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct gbaudio_module_info *module;
+	struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+	struct device *codec_dev = snd_soc_dapm_to_dev(widget->dapm);
+	struct gbaudio_codec_info *gb = dev_get_drvdata(codec_dev);
+	struct gb_bundle *bundle;
+
+	dev_dbg(codec_dev, "Entered %s:%s\n", __func__, kcontrol->id.name);
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	data = (struct gbaudio_ctl_pvt *)kcontrol->private_value;
+	bundle = to_gb_bundle(module->dev);
+
+	if (data->vcount == 2)
+		dev_warn(codec_dev,
+			 "GB: Control '%s' is stereo, which is not supported\n",
+			 kcontrol->id.name);
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_get_control(module->mgmt_connection, data->ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	if (ret) {
+		dev_err_ratelimited(codec_dev, "%d:Error in %s for %s\n", ret,
+				    __func__, kcontrol->id.name);
+		return ret;
+	}
+	/* update ucontrol */
+	ucontrol->value.integer.value[0] =
+		le32_to_cpu(gbvalue.value.integer_value[0]);
+
+	return ret;
+}
+
+static int gbcodec_mixer_dapm_ctl_put(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	int ret, wi, max, connect;
+	unsigned int mask, val;
+	struct gb_audio_ctl_elem_info *info;
+	struct gbaudio_ctl_pvt *data;
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct gbaudio_module_info *module;
+	struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+	struct device *codec_dev = snd_soc_dapm_to_dev(widget->dapm);
+	struct gbaudio_codec_info *gb = dev_get_drvdata(codec_dev);
+	struct gb_bundle *bundle;
+
+	dev_dbg(codec_dev, "Entered %s:%s\n", __func__, kcontrol->id.name);
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	data = (struct gbaudio_ctl_pvt *)kcontrol->private_value;
+	info = (struct gb_audio_ctl_elem_info *)data->info;
+	bundle = to_gb_bundle(module->dev);
+
+	if (data->vcount == 2)
+		dev_warn(codec_dev,
+			 "GB: Control '%s' is stereo, which is not supported\n",
+			 kcontrol->id.name);
+
+	max = le32_to_cpu(info->value.integer.max);
+	mask = (1 << fls(max)) - 1;
+	val = ucontrol->value.integer.value[0] & mask;
+	connect = !!val;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_get_control(module->mgmt_connection, data->ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+	if (ret)
+		goto exit;
+
+	/* update ucontrol */
+	if (le32_to_cpu(gbvalue.value.integer_value[0]) != val) {
+		for (wi = 0; wi < wlist->num_widgets; wi++) {
+			widget = wlist->widgets[wi];
+			snd_soc_dapm_mixer_update_power(widget->dapm, kcontrol,
+							connect, NULL);
+		}
+		gbvalue.value.integer_value[0] =
+			cpu_to_le32(ucontrol->value.integer.value[0]);
+
+		ret = gb_audio_gb_set_control(module->mgmt_connection,
+					      data->ctl_id,
+					      GB_AUDIO_INVALID_INDEX, &gbvalue);
+	}
+
+exit:
+	gb_pm_runtime_put_autosuspend(bundle);
+	if (ret)
+		dev_err_ratelimited(codec_dev, "%d:Error in %s for %s\n", ret,
+				    __func__, kcontrol->id.name);
+	return ret;
+}
+
+#define SOC_DAPM_MIXER_GB(xname, kcount, data) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.count = kcount, .info = gbcodec_mixer_dapm_ctl_info, \
+	.get = gbcodec_mixer_dapm_ctl_get, .put = gbcodec_mixer_dapm_ctl_put, \
+	.private_value = (unsigned long)data}
+
+static int gbcodec_event_spk(struct snd_soc_dapm_widget *w,
+			     struct snd_kcontrol *k, int event)
+{
+	/* Ensure GB speaker is connected */
+
+	return 0;
+}
+
+static int gbcodec_event_hp(struct snd_soc_dapm_widget *w,
+			    struct snd_kcontrol *k, int event)
+{
+	/* Ensure GB module supports jack slot */
+
+	return 0;
+}
+
+static int gbcodec_event_int_mic(struct snd_soc_dapm_widget *w,
+				 struct snd_kcontrol *k, int event)
+{
+	/* Ensure GB module supports jack slot */
+
+	return 0;
+}
+
+static int gbaudio_validate_kcontrol_count(struct gb_audio_widget *w)
+{
+	int ret = 0;
+
+	switch (w->type) {
+	case snd_soc_dapm_spk:
+	case snd_soc_dapm_hp:
+	case snd_soc_dapm_mic:
+	case snd_soc_dapm_output:
+	case snd_soc_dapm_input:
+		if (w->ncontrols)
+			ret = -EINVAL;
+		break;
+	case snd_soc_dapm_switch:
+	case snd_soc_dapm_mux:
+		if (w->ncontrols != 1)
+			ret = -EINVAL;
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+static int gbcodec_enum_ctl_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	int ret, ctl_id;
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct gbaudio_codec_info *gb = snd_soc_component_get_drvdata(comp);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct gbaudio_module_info *module;
+	struct gb_bundle *bundle;
+
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	ctl_id = gbaudio_map_controlname(module, kcontrol->id.name);
+	if (ctl_id < 0)
+		return -EINVAL;
+
+	bundle = to_gb_bundle(module->dev);
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_get_control(module->mgmt_connection, ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	if (ret) {
+		dev_err_ratelimited(comp->dev, "%d:Error in %s for %s\n", ret,
+				    __func__, kcontrol->id.name);
+		return ret;
+	}
+
+	ucontrol->value.enumerated.item[0] =
+		le32_to_cpu(gbvalue.value.enumerated_item[0]);
+	if (e->shift_l != e->shift_r)
+		ucontrol->value.enumerated.item[1] =
+			le32_to_cpu(gbvalue.value.enumerated_item[1]);
+
+	return 0;
+}
+
+static int gbcodec_enum_ctl_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	int ret, ctl_id;
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct gbaudio_codec_info *gb = snd_soc_component_get_drvdata(comp);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct gbaudio_module_info *module;
+	struct gb_bundle *bundle;
+
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	ctl_id = gbaudio_map_controlname(module, kcontrol->id.name);
+	if (ctl_id < 0)
+		return -EINVAL;
+
+	if (ucontrol->value.enumerated.item[0] > e->items - 1)
+		return -EINVAL;
+	gbvalue.value.enumerated_item[0] =
+		cpu_to_le32(ucontrol->value.enumerated.item[0]);
+
+	if (e->shift_l != e->shift_r) {
+		if (ucontrol->value.enumerated.item[1] > e->items - 1)
+			return -EINVAL;
+		gbvalue.value.enumerated_item[1] =
+			cpu_to_le32(ucontrol->value.enumerated.item[1]);
+	}
+
+	bundle = to_gb_bundle(module->dev);
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_set_control(module->mgmt_connection, ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	if (ret) {
+		dev_err_ratelimited(comp->dev, "%d:Error in %s for %s\n",
+				    ret, __func__, kcontrol->id.name);
+	}
+
+	return ret;
+}
+
+static int gbaudio_tplg_create_enum_kctl(struct gbaudio_module_info *gb,
+					 struct snd_kcontrol_new *kctl,
+					 struct gb_audio_control *ctl)
+{
+	struct soc_enum *gbe;
+	struct gb_audio_enumerated *gb_enum;
+	int i;
+
+	gbe = devm_kzalloc(gb->dev, sizeof(*gbe), GFP_KERNEL);
+	if (!gbe)
+		return -ENOMEM;
+
+	gb_enum = &ctl->info.value.enumerated;
+
+	/* since count=1, and reg is dummy */
+	gbe->items = le32_to_cpu(gb_enum->items);
+	gbe->texts = gb_generate_enum_strings(gb, gb_enum);
+	if (!gbe->texts)
+		return -ENOMEM;
+
+	/* debug enum info */
+	dev_dbg(gb->dev, "Max:%d, name_length:%d\n", gbe->items,
+		le16_to_cpu(gb_enum->names_length));
+	for (i = 0; i < gbe->items; i++)
+		dev_dbg(gb->dev, "src[%d]: %s\n", i, gbe->texts[i]);
+
+	*kctl = (struct snd_kcontrol_new)
+		SOC_ENUM_EXT(ctl->name, *gbe, gbcodec_enum_ctl_get,
+			     gbcodec_enum_ctl_put);
+	return 0;
+}
+
+static int gbaudio_tplg_create_kcontrol(struct gbaudio_module_info *gb,
+					struct snd_kcontrol_new *kctl,
+					struct gb_audio_control *ctl)
+{
+	int ret = 0;
+	struct gbaudio_ctl_pvt *ctldata;
+
+	switch (ctl->iface) {
+	case (__force int)SNDRV_CTL_ELEM_IFACE_MIXER:
+		switch (ctl->info.type) {
+		case GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED:
+			ret = gbaudio_tplg_create_enum_kctl(gb, kctl, ctl);
+			break;
+		default:
+			ctldata = devm_kzalloc(gb->dev,
+					       sizeof(struct gbaudio_ctl_pvt),
+					       GFP_KERNEL);
+			if (!ctldata)
+				return -ENOMEM;
+			ctldata->ctl_id = ctl->id;
+			ctldata->data_cport = le16_to_cpu(ctl->data_cport);
+			ctldata->access = le32_to_cpu(ctl->access);
+			ctldata->vcount = ctl->count_values;
+			ctldata->info = &ctl->info;
+			*kctl = (struct snd_kcontrol_new)
+				SOC_MIXER_GB(ctl->name, ctl->count, ctldata);
+			ctldata = NULL;
+			break;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dev_dbg(gb->dev, "%s:%d control created\n", ctl->name, ctl->id);
+	return ret;
+}
+
+static int gbcodec_enum_dapm_ctl_get(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	int ret, ctl_id;
+	struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+	struct gbaudio_module_info *module;
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct device *codec_dev = snd_soc_dapm_to_dev(widget->dapm);
+	struct gbaudio_codec_info *gb = dev_get_drvdata(codec_dev);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	struct gb_bundle *bundle;
+
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	ctl_id = gbaudio_map_wcontrolname(module, kcontrol->id.name);
+	if (ctl_id < 0)
+		return -EINVAL;
+
+	bundle = to_gb_bundle(module->dev);
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_get_control(module->mgmt_connection, ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	if (ret) {
+		dev_err_ratelimited(codec_dev, "%d:Error in %s for %s\n", ret,
+				    __func__, kcontrol->id.name);
+		return ret;
+	}
+
+	ucontrol->value.enumerated.item[0] = le32_to_cpu(gbvalue.value.enumerated_item[0]);
+	if (e->shift_l != e->shift_r)
+		ucontrol->value.enumerated.item[1] =
+			le32_to_cpu(gbvalue.value.enumerated_item[1]);
+
+	return 0;
+}
+
+static int gbcodec_enum_dapm_ctl_put(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	int ret, wi, ctl_id;
+	unsigned int val, mux, change;
+	struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+	struct gb_audio_ctl_elem_value gbvalue;
+	struct gbaudio_module_info *module;
+	struct device *codec_dev = snd_soc_dapm_to_dev(widget->dapm);
+	struct gbaudio_codec_info *gb = dev_get_drvdata(codec_dev);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	struct gb_bundle *bundle;
+
+	if (ucontrol->value.enumerated.item[0] > e->items - 1)
+		return -EINVAL;
+
+	module = find_gb_module(gb, kcontrol->id.name);
+	if (!module)
+		return -EINVAL;
+
+	ctl_id = gbaudio_map_wcontrolname(module, kcontrol->id.name);
+	if (ctl_id < 0)
+		return -EINVAL;
+
+	change = 0;
+	bundle = to_gb_bundle(module->dev);
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_audio_gb_get_control(module->mgmt_connection, ctl_id,
+				      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	if (ret) {
+		dev_err_ratelimited(codec_dev, "%d:Error in %s for %s\n", ret,
+				    __func__, kcontrol->id.name);
+		return ret;
+	}
+
+	mux = ucontrol->value.enumerated.item[0];
+	val = mux << e->shift_l;
+
+	if (le32_to_cpu(gbvalue.value.enumerated_item[0]) !=
+	    ucontrol->value.enumerated.item[0]) {
+		change = 1;
+		gbvalue.value.enumerated_item[0] =
+			cpu_to_le32(ucontrol->value.enumerated.item[0]);
+	}
+
+	if (e->shift_l != e->shift_r) {
+		if (ucontrol->value.enumerated.item[1] > e->items - 1)
+			return -EINVAL;
+		val |= ucontrol->value.enumerated.item[1] << e->shift_r;
+		if (le32_to_cpu(gbvalue.value.enumerated_item[1]) !=
+		    ucontrol->value.enumerated.item[1]) {
+			change = 1;
+			gbvalue.value.enumerated_item[1] =
+				cpu_to_le32(ucontrol->value.enumerated.item[1]);
+		}
+	}
+
+	if (change) {
+		ret = gb_pm_runtime_get_sync(bundle);
+		if (ret)
+			return ret;
+
+		ret = gb_audio_gb_set_control(module->mgmt_connection, ctl_id,
+					      GB_AUDIO_INVALID_INDEX, &gbvalue);
+
+		gb_pm_runtime_put_autosuspend(bundle);
+
+		if (ret) {
+			dev_err_ratelimited(codec_dev,
+					    "%d:Error in %s for %s\n", ret,
+					    __func__, kcontrol->id.name);
+		}
+		for (wi = 0; wi < wlist->num_widgets; wi++) {
+			widget = wlist->widgets[wi];
+			snd_soc_dapm_mux_update_power(widget->dapm, kcontrol,
+						      val, e, NULL);
+		}
+	}
+
+	return change;
+}
+
+static int gbaudio_tplg_create_enum_ctl(struct gbaudio_module_info *gb,
+					struct snd_kcontrol_new *kctl,
+					struct gb_audio_control *ctl)
+{
+	struct soc_enum *gbe;
+	struct gb_audio_enumerated *gb_enum;
+	int i;
+
+	gbe = devm_kzalloc(gb->dev, sizeof(*gbe), GFP_KERNEL);
+	if (!gbe)
+		return -ENOMEM;
+
+	gb_enum = &ctl->info.value.enumerated;
+
+	/* since count=1, and reg is dummy */
+	gbe->items = le32_to_cpu(gb_enum->items);
+	gbe->texts = gb_generate_enum_strings(gb, gb_enum);
+	if (!gbe->texts)
+		return -ENOMEM;
+
+	/* debug enum info */
+	dev_dbg(gb->dev, "Max:%d, name_length:%d\n", gbe->items,
+		le16_to_cpu(gb_enum->names_length));
+	for (i = 0; i < gbe->items; i++)
+		dev_dbg(gb->dev, "src[%d]: %s\n", i, gbe->texts[i]);
+
+	*kctl = (struct snd_kcontrol_new)
+		SOC_DAPM_ENUM_EXT(ctl->name, *gbe, gbcodec_enum_dapm_ctl_get,
+				  gbcodec_enum_dapm_ctl_put);
+	return 0;
+}
+
+static int gbaudio_tplg_create_mixer_ctl(struct gbaudio_module_info *gb,
+					 struct snd_kcontrol_new *kctl,
+					 struct gb_audio_control *ctl)
+{
+	struct gbaudio_ctl_pvt *ctldata;
+
+	ctldata = devm_kzalloc(gb->dev, sizeof(struct gbaudio_ctl_pvt),
+			       GFP_KERNEL);
+	if (!ctldata)
+		return -ENOMEM;
+	ctldata->ctl_id = ctl->id;
+	ctldata->data_cport = le16_to_cpu(ctl->data_cport);
+	ctldata->access = le32_to_cpu(ctl->access);
+	ctldata->vcount = ctl->count_values;
+	ctldata->info = &ctl->info;
+	*kctl = (struct snd_kcontrol_new)
+		SOC_DAPM_MIXER_GB(ctl->name, ctl->count, ctldata);
+
+	return 0;
+}
+
+static int gbaudio_tplg_create_wcontrol(struct gbaudio_module_info *gb,
+					struct snd_kcontrol_new *kctl,
+					struct gb_audio_control *ctl)
+{
+	int ret;
+
+	switch (ctl->iface) {
+	case (__force int)SNDRV_CTL_ELEM_IFACE_MIXER:
+		switch (ctl->info.type) {
+		case GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED:
+			ret = gbaudio_tplg_create_enum_ctl(gb, kctl, ctl);
+			break;
+		default:
+			ret = gbaudio_tplg_create_mixer_ctl(gb, kctl, ctl);
+			break;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dev_dbg(gb->dev, "%s:%d DAPM control created, ret:%d\n", ctl->name,
+		ctl->id, ret);
+	return ret;
+}
+
+static int gbaudio_widget_event(struct snd_soc_dapm_widget *w,
+				struct snd_kcontrol *kcontrol, int event)
+{
+	int wid;
+	int ret;
+	struct device *codec_dev = snd_soc_dapm_to_dev(w->dapm);
+	struct gbaudio_codec_info *gbcodec = dev_get_drvdata(codec_dev);
+	struct gbaudio_module_info *module;
+	struct gb_bundle *bundle;
+
+	dev_dbg(codec_dev, "%s %s %d\n", __func__, w->name, event);
+
+	/* Find relevant module */
+	module = find_gb_module(gbcodec, w->name);
+	if (!module)
+		return -EINVAL;
+
+	/* map name to widget id */
+	wid = gbaudio_map_widgetname(module, w->name);
+	if (wid < 0) {
+		dev_err(codec_dev, "Invalid widget name:%s\n", w->name);
+		return -EINVAL;
+	}
+
+	bundle = to_gb_bundle(module->dev);
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		ret = gb_audio_gb_enable_widget(module->mgmt_connection, wid);
+		if (!ret)
+			ret = gbaudio_module_update(gbcodec, w, module, 1);
+		break;
+	case SND_SOC_DAPM_POST_PMD:
+		ret = gb_audio_gb_disable_widget(module->mgmt_connection, wid);
+		if (!ret)
+			ret = gbaudio_module_update(gbcodec, w, module, 0);
+		break;
+	}
+	if (ret)
+		dev_err_ratelimited(codec_dev,
+				    "%d: widget, event:%d failed:%d\n", wid,
+				    event, ret);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static const struct snd_soc_dapm_widget gbaudio_widgets[] = {
+	[snd_soc_dapm_spk]	= SND_SOC_DAPM_SPK(NULL, gbcodec_event_spk),
+	[snd_soc_dapm_hp]	= SND_SOC_DAPM_HP(NULL, gbcodec_event_hp),
+	[snd_soc_dapm_mic]	= SND_SOC_DAPM_MIC(NULL, gbcodec_event_int_mic),
+	[snd_soc_dapm_output]	= SND_SOC_DAPM_OUTPUT(NULL),
+	[snd_soc_dapm_input]	= SND_SOC_DAPM_INPUT(NULL),
+	[snd_soc_dapm_switch]	= SND_SOC_DAPM_SWITCH_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_pga]	= SND_SOC_DAPM_PGA_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_mixer]	= SND_SOC_DAPM_MIXER_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_mux]	= SND_SOC_DAPM_MUX_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_aif_in]	= SND_SOC_DAPM_AIF_IN_E(NULL, NULL, 0,
+					SND_SOC_NOPM, 0, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_aif_out]	= SND_SOC_DAPM_AIF_OUT_E(NULL, NULL, 0,
+					SND_SOC_NOPM, 0, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+};
+
+static int gbaudio_tplg_create_widget(struct gbaudio_module_info *module,
+				      struct snd_soc_dapm_widget *dw,
+				      struct gb_audio_widget *w, int *w_size)
+{
+	int i, ret, csize;
+	struct snd_kcontrol_new *widget_kctls;
+	struct gb_audio_control *curr;
+	struct gbaudio_control *control, *_control;
+	size_t size;
+	char temp_name[NAME_SIZE];
+
+	ret = gbaudio_validate_kcontrol_count(w);
+	if (ret) {
+		dev_err(module->dev, "Invalid kcontrol count=%d for %s\n",
+			w->ncontrols, w->name);
+		return ret;
+	}
+
+	/* allocate memory for kcontrol */
+	if (w->ncontrols) {
+		size = sizeof(struct snd_kcontrol_new) * w->ncontrols;
+		widget_kctls = devm_kzalloc(module->dev, size, GFP_KERNEL);
+		if (!widget_kctls)
+			return -ENOMEM;
+	}
+
+	*w_size = sizeof(struct gb_audio_widget);
+
+	/* create relevant kcontrols */
+	curr = w->ctl;
+	for (i = 0; i < w->ncontrols; i++) {
+		ret = gbaudio_tplg_create_wcontrol(module, &widget_kctls[i],
+						   curr);
+		if (ret) {
+			dev_err(module->dev,
+				"%s:%d type widget_ctl not supported\n",
+				curr->name, curr->iface);
+			goto error;
+		}
+		control = devm_kzalloc(module->dev,
+				       sizeof(struct gbaudio_control),
+				       GFP_KERNEL);
+		if (!control) {
+			ret = -ENOMEM;
+			goto error;
+		}
+		control->id = curr->id;
+		control->name = curr->name;
+		control->wname = w->name;
+
+		if (curr->info.type == GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED) {
+			struct gb_audio_enumerated *gbenum =
+				&curr->info.value.enumerated;
+
+			csize = offsetof(struct gb_audio_control, info);
+			csize += offsetof(struct gb_audio_ctl_elem_info, value);
+			csize += offsetof(struct gb_audio_enumerated, names);
+			csize += le16_to_cpu(gbenum->names_length);
+			control->texts = (const char * const *)
+				gb_generate_enum_strings(module, gbenum);
+			if (!control->texts) {
+				ret = -ENOMEM;
+				goto error;
+			}
+			control->items = le32_to_cpu(gbenum->items);
+		} else {
+			csize = sizeof(struct gb_audio_control);
+		}
+
+		*w_size += csize;
+		curr = (void *)curr + csize;
+		list_add(&control->list, &module->widget_ctl_list);
+		dev_dbg(module->dev, "%s: control of type %d created\n",
+			widget_kctls[i].name, widget_kctls[i].iface);
+	}
+
+	/* Prefix dev_id to widget control_name */
+	strscpy(temp_name, w->name, sizeof(temp_name));
+	snprintf(w->name, sizeof(w->name), "GB %d %s", module->dev_id, temp_name);
+
+	switch (w->type) {
+	case snd_soc_dapm_spk:
+		*dw = gbaudio_widgets[w->type];
+		module->op_devices |= GBAUDIO_DEVICE_OUT_SPEAKER;
+		break;
+	case snd_soc_dapm_hp:
+		*dw = gbaudio_widgets[w->type];
+		module->op_devices |= (GBAUDIO_DEVICE_OUT_WIRED_HEADSET
+					| GBAUDIO_DEVICE_OUT_WIRED_HEADPHONE);
+		module->ip_devices |= GBAUDIO_DEVICE_IN_WIRED_HEADSET;
+		break;
+	case snd_soc_dapm_mic:
+		*dw = gbaudio_widgets[w->type];
+		module->ip_devices |= GBAUDIO_DEVICE_IN_BUILTIN_MIC;
+		break;
+	case snd_soc_dapm_output:
+	case snd_soc_dapm_input:
+	case snd_soc_dapm_switch:
+	case snd_soc_dapm_pga:
+	case snd_soc_dapm_mixer:
+	case snd_soc_dapm_mux:
+		*dw = gbaudio_widgets[w->type];
+		break;
+	case snd_soc_dapm_aif_in:
+	case snd_soc_dapm_aif_out:
+		*dw = gbaudio_widgets[w->type];
+		dw->sname = w->sname;
+		break;
+	default:
+		ret = -EINVAL;
+		goto error;
+	}
+	dw->name = w->name;
+
+	dev_dbg(module->dev, "%s: widget of type %d created\n", dw->name,
+		dw->id);
+	return 0;
+error:
+	list_for_each_entry_safe(control, _control, &module->widget_ctl_list,
+				 list) {
+		list_del(&control->list);
+		devm_kfree(module->dev, control);
+	}
+	return ret;
+}
+
+static int gbaudio_tplg_process_kcontrols(struct gbaudio_module_info *module,
+					  struct gb_audio_control *controls)
+{
+	int i, csize, ret;
+	struct snd_kcontrol_new *dapm_kctls;
+	struct gb_audio_control *curr;
+	struct gbaudio_control *control, *_control;
+	size_t size;
+	char temp_name[NAME_SIZE];
+
+	size = sizeof(struct snd_kcontrol_new) * module->num_controls;
+	dapm_kctls = devm_kzalloc(module->dev, size, GFP_KERNEL);
+	if (!dapm_kctls)
+		return -ENOMEM;
+
+	curr = controls;
+	for (i = 0; i < module->num_controls; i++) {
+		ret = gbaudio_tplg_create_kcontrol(module, &dapm_kctls[i],
+						   curr);
+		if (ret) {
+			dev_err(module->dev, "%s:%d type not supported\n",
+				curr->name, curr->iface);
+			goto error;
+		}
+		control = devm_kzalloc(module->dev, sizeof(struct
+							   gbaudio_control),
+				      GFP_KERNEL);
+		if (!control) {
+			ret = -ENOMEM;
+			goto error;
+		}
+		control->id = curr->id;
+		/* Prefix dev_id to widget_name */
+		strscpy(temp_name, curr->name, sizeof(temp_name));
+		snprintf(curr->name, sizeof(curr->name), "GB %d %s", module->dev_id,
+			 temp_name);
+		control->name = curr->name;
+		if (curr->info.type == GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED) {
+			struct gb_audio_enumerated *gbenum =
+				&curr->info.value.enumerated;
+
+			csize = offsetof(struct gb_audio_control, info);
+			csize += offsetof(struct gb_audio_ctl_elem_info, value);
+			csize += offsetof(struct gb_audio_enumerated, names);
+			csize += le16_to_cpu(gbenum->names_length);
+			control->texts = (const char * const *)
+				gb_generate_enum_strings(module, gbenum);
+			if (!control->texts) {
+				ret = -ENOMEM;
+				goto error;
+			}
+			control->items = le32_to_cpu(gbenum->items);
+		} else {
+			csize = sizeof(struct gb_audio_control);
+		}
+
+		list_add(&control->list, &module->ctl_list);
+		dev_dbg(module->dev, "%d:%s created of type %d\n", curr->id,
+			curr->name, curr->info.type);
+		curr = (void *)curr + csize;
+	}
+	module->controls = dapm_kctls;
+
+	return 0;
+error:
+	list_for_each_entry_safe(control, _control, &module->ctl_list,
+				 list) {
+		list_del(&control->list);
+		devm_kfree(module->dev, control);
+	}
+	devm_kfree(module->dev, dapm_kctls);
+	return ret;
+}
+
+static int gbaudio_tplg_process_widgets(struct gbaudio_module_info *module,
+					struct gb_audio_widget *widgets)
+{
+	int i, ret, w_size;
+	struct snd_soc_dapm_widget *dapm_widgets;
+	struct gb_audio_widget *curr;
+	struct gbaudio_widget *widget, *_widget;
+	size_t size;
+
+	size = sizeof(struct snd_soc_dapm_widget) * module->num_dapm_widgets;
+	dapm_widgets = devm_kzalloc(module->dev, size, GFP_KERNEL);
+	if (!dapm_widgets)
+		return -ENOMEM;
+
+	curr = widgets;
+	for (i = 0; i < module->num_dapm_widgets; i++) {
+		ret = gbaudio_tplg_create_widget(module, &dapm_widgets[i],
+						 curr, &w_size);
+		if (ret) {
+			dev_err(module->dev, "%s:%d type not supported\n",
+				curr->name, curr->type);
+			goto error;
+		}
+		widget = devm_kzalloc(module->dev, sizeof(struct
+							   gbaudio_widget),
+				      GFP_KERNEL);
+		if (!widget) {
+			ret = -ENOMEM;
+			goto error;
+		}
+		widget->id = curr->id;
+		widget->name = curr->name;
+		list_add(&widget->list, &module->widget_list);
+		curr = (void *)curr + w_size;
+	}
+	module->dapm_widgets = dapm_widgets;
+
+	return 0;
+
+error:
+	list_for_each_entry_safe(widget, _widget, &module->widget_list,
+				 list) {
+		list_del(&widget->list);
+		devm_kfree(module->dev, widget);
+	}
+	devm_kfree(module->dev, dapm_widgets);
+	return ret;
+}
+
+static int gbaudio_tplg_process_routes(struct gbaudio_module_info *module,
+				       struct gb_audio_route *routes)
+{
+	int i, ret;
+	struct snd_soc_dapm_route *dapm_routes;
+	struct gb_audio_route *curr;
+	size_t size;
+
+	size = sizeof(struct snd_soc_dapm_route) * module->num_dapm_routes;
+	dapm_routes = devm_kzalloc(module->dev, size, GFP_KERNEL);
+	if (!dapm_routes)
+		return -ENOMEM;
+
+	module->dapm_routes = dapm_routes;
+	curr = routes;
+
+	for (i = 0; i < module->num_dapm_routes; i++) {
+		dapm_routes->sink =
+			gbaudio_map_widgetid(module, curr->destination_id);
+		if (!dapm_routes->sink) {
+			dev_err(module->dev, "%d:%d:%d:%d - Invalid sink\n",
+				curr->source_id, curr->destination_id,
+				curr->control_id, curr->index);
+			ret = -EINVAL;
+			goto error;
+		}
+		dapm_routes->source =
+			gbaudio_map_widgetid(module, curr->source_id);
+		if (!dapm_routes->source) {
+			dev_err(module->dev, "%d:%d:%d:%d - Invalid source\n",
+				curr->source_id, curr->destination_id,
+				curr->control_id, curr->index);
+			ret = -EINVAL;
+			goto error;
+		}
+		dapm_routes->control =
+			gbaudio_map_controlid(module,
+					      curr->control_id,
+					      curr->index);
+		if ((curr->control_id !=  GBAUDIO_INVALID_ID) &&
+		    !dapm_routes->control) {
+			dev_err(module->dev, "%d:%d:%d:%d - Invalid control\n",
+				curr->source_id, curr->destination_id,
+				curr->control_id, curr->index);
+			ret = -EINVAL;
+			goto error;
+		}
+		dev_dbg(module->dev, "Route {%s, %s, %s}\n", dapm_routes->sink,
+			(dapm_routes->control) ? dapm_routes->control : "NULL",
+			dapm_routes->source);
+		dapm_routes++;
+		curr++;
+	}
+
+	return 0;
+
+error:
+	devm_kfree(module->dev, module->dapm_routes);
+	return ret;
+}
+
+static int gbaudio_tplg_process_header(struct gbaudio_module_info *module,
+				       struct gb_audio_topology *tplg_data)
+{
+	/* fetch no. of kcontrols, widgets & routes */
+	module->num_controls = tplg_data->num_controls;
+	module->num_dapm_widgets = tplg_data->num_widgets;
+	module->num_dapm_routes = tplg_data->num_routes;
+
+	/* update block offset */
+	module->dai_offset = (unsigned long)&tplg_data->data;
+	module->control_offset = module->dai_offset +
+					le32_to_cpu(tplg_data->size_dais);
+	module->widget_offset = module->control_offset +
+					le32_to_cpu(tplg_data->size_controls);
+	module->route_offset = module->widget_offset +
+					le32_to_cpu(tplg_data->size_widgets);
+
+	dev_dbg(module->dev, "DAI offset is 0x%lx\n", module->dai_offset);
+	dev_dbg(module->dev, "control offset is %lx\n",
+		module->control_offset);
+	dev_dbg(module->dev, "widget offset is %lx\n", module->widget_offset);
+	dev_dbg(module->dev, "route offset is %lx\n", module->route_offset);
+
+	return 0;
+}
+
+int gbaudio_tplg_parse_data(struct gbaudio_module_info *module,
+			    struct gb_audio_topology *tplg_data)
+{
+	int ret;
+	struct gb_audio_control *controls;
+	struct gb_audio_widget *widgets;
+	struct gb_audio_route *routes;
+	unsigned int jack_type;
+
+	if (!tplg_data)
+		return -EINVAL;
+
+	ret = gbaudio_tplg_process_header(module, tplg_data);
+	if (ret) {
+		dev_err(module->dev, "%d: Error in parsing topology header\n",
+			ret);
+		return ret;
+	}
+
+	/* process control */
+	controls = (struct gb_audio_control *)module->control_offset;
+	ret = gbaudio_tplg_process_kcontrols(module, controls);
+	if (ret) {
+		dev_err(module->dev,
+			"%d: Error in parsing controls data\n", ret);
+		return ret;
+	}
+	dev_dbg(module->dev, "Control parsing finished\n");
+
+	/* process widgets */
+	widgets = (struct gb_audio_widget *)module->widget_offset;
+	ret = gbaudio_tplg_process_widgets(module, widgets);
+	if (ret) {
+		dev_err(module->dev,
+			"%d: Error in parsing widgets data\n", ret);
+		return ret;
+	}
+	dev_dbg(module->dev, "Widget parsing finished\n");
+
+	/* process route */
+	routes = (struct gb_audio_route *)module->route_offset;
+	ret = gbaudio_tplg_process_routes(module, routes);
+	if (ret) {
+		dev_err(module->dev,
+			"%d: Error in parsing routes data\n", ret);
+		return ret;
+	}
+	dev_dbg(module->dev, "Route parsing finished\n");
+
+	/* parse jack capabilities */
+	jack_type = le32_to_cpu(tplg_data->jack_type);
+	if (jack_type) {
+		module->jack_mask = jack_type & GBCODEC_JACK_MASK;
+		module->button_mask = jack_type & GBCODEC_JACK_BUTTON_MASK;
+	}
+
+	return ret;
+}
+
+void gbaudio_tplg_release(struct gbaudio_module_info *module)
+{
+	struct gbaudio_control *control, *_control;
+	struct gbaudio_widget *widget, *_widget;
+
+	if (!module->topology)
+		return;
+
+	/* release kcontrols */
+	list_for_each_entry_safe(control, _control, &module->ctl_list,
+				 list) {
+		list_del(&control->list);
+		devm_kfree(module->dev, control);
+	}
+	if (module->controls)
+		devm_kfree(module->dev, module->controls);
+
+	/* release widget controls */
+	list_for_each_entry_safe(control, _control, &module->widget_ctl_list,
+				 list) {
+		list_del(&control->list);
+		devm_kfree(module->dev, control);
+	}
+
+	/* release widgets */
+	list_for_each_entry_safe(widget, _widget, &module->widget_list,
+				 list) {
+		list_del(&widget->list);
+		devm_kfree(module->dev, widget);
+	}
+	if (module->dapm_widgets)
+		devm_kfree(module->dev, module->dapm_widgets);
+
+	/* release routes */
+	if (module->dapm_routes)
+		devm_kfree(module->dev, module->dapm_routes);
+}
diff --git a/drivers/staging/greybus/authentication.c b/drivers/staging/greybus/authentication.c
new file mode 100644
index 000000000000..d53e58f92e81
--- /dev/null
+++ b/drivers/staging/greybus/authentication.c
@@ -0,0 +1,429 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Component Authentication Protocol (CAP) Driver.
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+
+#include <linux/greybus.h>
+#include <linux/cdev.h>
+#include <linux/fs.h>
+#include <linux/ioctl.h>
+#include <linux/uaccess.h>
+
+#include "greybus_authentication.h"
+#include "firmware.h"
+
+#define CAP_TIMEOUT_MS		1000
+
+/*
+ * Number of minor devices this driver supports.
+ * There will be exactly one required per Interface.
+ */
+#define NUM_MINORS		U8_MAX
+
+struct gb_cap {
+	struct device		*parent;
+	struct gb_connection	*connection;
+	struct kref		kref;
+	struct list_head	node;
+	bool			disabled; /* connection getting disabled */
+
+	struct mutex		mutex;
+	struct cdev		cdev;
+	struct device		*class_device;
+	dev_t			dev_num;
+};
+
+static const struct class cap_class = {
+	.name = "gb_authenticate",
+};
+
+static dev_t cap_dev_num;
+static DEFINE_IDA(cap_minors_map);
+static LIST_HEAD(cap_list);
+static DEFINE_MUTEX(list_mutex);
+
+static void cap_kref_release(struct kref *kref)
+{
+	struct gb_cap *cap = container_of(kref, struct gb_cap, kref);
+
+	kfree(cap);
+}
+
+/*
+ * All users of cap take a reference (from within list_mutex lock), before
+ * they get a pointer to play with. And the structure will be freed only after
+ * the last user has put the reference to it.
+ */
+static void put_cap(struct gb_cap *cap)
+{
+	kref_put(&cap->kref, cap_kref_release);
+}
+
+/* Caller must call put_cap() after using struct gb_cap */
+static struct gb_cap *get_cap(struct cdev *cdev)
+{
+	struct gb_cap *cap;
+
+	mutex_lock(&list_mutex);
+
+	list_for_each_entry(cap, &cap_list, node) {
+		if (&cap->cdev == cdev) {
+			kref_get(&cap->kref);
+			goto unlock;
+		}
+	}
+
+	cap = NULL;
+
+unlock:
+	mutex_unlock(&list_mutex);
+
+	return cap;
+}
+
+static int cap_get_endpoint_uid(struct gb_cap *cap, u8 *euid)
+{
+	struct gb_connection *connection = cap->connection;
+	struct gb_cap_get_endpoint_uid_response response;
+	int ret;
+
+	ret = gb_operation_sync(connection, GB_CAP_TYPE_GET_ENDPOINT_UID, NULL,
+				0, &response, sizeof(response));
+	if (ret) {
+		dev_err(cap->parent, "failed to get endpoint uid (%d)\n", ret);
+		return ret;
+	}
+
+	memcpy(euid, response.uid, sizeof(response.uid));
+
+	return 0;
+}
+
+static int cap_get_ims_certificate(struct gb_cap *cap, u32 class, u32 id,
+				   u8 *certificate, u32 *size, u8 *result)
+{
+	struct gb_connection *connection = cap->connection;
+	struct gb_cap_get_ims_certificate_request *request;
+	struct gb_cap_get_ims_certificate_response *response;
+	size_t max_size = gb_operation_get_payload_size_max(connection);
+	struct gb_operation *op;
+	int ret;
+
+	op = gb_operation_create_flags(connection,
+				       GB_CAP_TYPE_GET_IMS_CERTIFICATE,
+				       sizeof(*request), max_size,
+				       GB_OPERATION_FLAG_SHORT_RESPONSE,
+				       GFP_KERNEL);
+	if (!op)
+		return -ENOMEM;
+
+	request = op->request->payload;
+	request->certificate_class = cpu_to_le32(class);
+	request->certificate_id = cpu_to_le32(id);
+
+	ret = gb_operation_request_send_sync(op);
+	if (ret) {
+		dev_err(cap->parent, "failed to get certificate (%d)\n", ret);
+		goto done;
+	}
+
+	response = op->response->payload;
+	*result = response->result_code;
+	*size = op->response->payload_size - sizeof(*response);
+	memcpy(certificate, response->certificate, *size);
+
+done:
+	gb_operation_put(op);
+	return ret;
+}
+
+static int cap_authenticate(struct gb_cap *cap, u32 auth_type, u8 *uid,
+			    u8 *challenge, u8 *result, u8 *auth_response,
+			    u32 *signature_size, u8 *signature)
+{
+	struct gb_connection *connection = cap->connection;
+	struct gb_cap_authenticate_request *request;
+	struct gb_cap_authenticate_response *response;
+	size_t max_size = gb_operation_get_payload_size_max(connection);
+	struct gb_operation *op;
+	int ret;
+
+	op = gb_operation_create_flags(connection, GB_CAP_TYPE_AUTHENTICATE,
+				       sizeof(*request), max_size,
+				       GB_OPERATION_FLAG_SHORT_RESPONSE,
+				       GFP_KERNEL);
+	if (!op)
+		return -ENOMEM;
+
+	request = op->request->payload;
+	request->auth_type = cpu_to_le32(auth_type);
+	memcpy(request->uid, uid, sizeof(request->uid));
+	memcpy(request->challenge, challenge, sizeof(request->challenge));
+
+	ret = gb_operation_request_send_sync(op);
+	if (ret) {
+		dev_err(cap->parent, "failed to authenticate (%d)\n", ret);
+		goto done;
+	}
+
+	response = op->response->payload;
+	*result = response->result_code;
+	*signature_size = op->response->payload_size - sizeof(*response);
+	memcpy(auth_response, response->response, sizeof(response->response));
+	memcpy(signature, response->signature, *signature_size);
+
+done:
+	gb_operation_put(op);
+	return ret;
+}
+
+/* Char device fops */
+
+static int cap_open(struct inode *inode, struct file *file)
+{
+	struct gb_cap *cap = get_cap(inode->i_cdev);
+
+	/* cap structure can't get freed until file descriptor is closed */
+	if (cap) {
+		file->private_data = cap;
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+static int cap_release(struct inode *inode, struct file *file)
+{
+	struct gb_cap *cap = file->private_data;
+
+	put_cap(cap);
+	return 0;
+}
+
+static int cap_ioctl(struct gb_cap *cap, unsigned int cmd,
+		     void __user *buf)
+{
+	struct cap_ioc_get_endpoint_uid endpoint_uid;
+	struct cap_ioc_get_ims_certificate *ims_cert;
+	struct cap_ioc_authenticate *authenticate;
+	size_t size;
+	int ret;
+
+	switch (cmd) {
+	case CAP_IOC_GET_ENDPOINT_UID:
+		ret = cap_get_endpoint_uid(cap, endpoint_uid.uid);
+		if (ret)
+			return ret;
+
+		if (copy_to_user(buf, &endpoint_uid, sizeof(endpoint_uid)))
+			return -EFAULT;
+
+		return 0;
+	case CAP_IOC_GET_IMS_CERTIFICATE:
+		size = sizeof(*ims_cert);
+		ims_cert = memdup_user(buf, size);
+		if (IS_ERR(ims_cert))
+			return PTR_ERR(ims_cert);
+
+		ret = cap_get_ims_certificate(cap, ims_cert->certificate_class,
+					      ims_cert->certificate_id,
+					      ims_cert->certificate,
+					      &ims_cert->cert_size,
+					      &ims_cert->result_code);
+		if (!ret && copy_to_user(buf, ims_cert, size))
+			ret = -EFAULT;
+		kfree(ims_cert);
+
+		return ret;
+	case CAP_IOC_AUTHENTICATE:
+		size = sizeof(*authenticate);
+		authenticate = memdup_user(buf, size);
+		if (IS_ERR(authenticate))
+			return PTR_ERR(authenticate);
+
+		ret = cap_authenticate(cap, authenticate->auth_type,
+				       authenticate->uid,
+				       authenticate->challenge,
+				       &authenticate->result_code,
+				       authenticate->response,
+				       &authenticate->signature_size,
+				       authenticate->signature);
+		if (!ret && copy_to_user(buf, authenticate, size))
+			ret = -EFAULT;
+		kfree(authenticate);
+
+		return ret;
+	default:
+		return -ENOTTY;
+	}
+}
+
+static long cap_ioctl_unlocked(struct file *file, unsigned int cmd,
+			       unsigned long arg)
+{
+	struct gb_cap *cap = file->private_data;
+	struct gb_bundle *bundle = cap->connection->bundle;
+	int ret = -ENODEV;
+
+	/*
+	 * Serialize ioctls.
+	 *
+	 * We don't want the user to do multiple authentication operations in
+	 * parallel.
+	 *
+	 * This is also used to protect ->disabled, which is used to check if
+	 * the connection is getting disconnected, so that we don't start any
+	 * new operations.
+	 */
+	mutex_lock(&cap->mutex);
+	if (!cap->disabled) {
+		ret = gb_pm_runtime_get_sync(bundle);
+		if (!ret) {
+			ret = cap_ioctl(cap, cmd, (void __user *)arg);
+			gb_pm_runtime_put_autosuspend(bundle);
+		}
+	}
+	mutex_unlock(&cap->mutex);
+
+	return ret;
+}
+
+static const struct file_operations cap_fops = {
+	.owner		= THIS_MODULE,
+	.open		= cap_open,
+	.release	= cap_release,
+	.unlocked_ioctl	= cap_ioctl_unlocked,
+};
+
+int gb_cap_connection_init(struct gb_connection *connection)
+{
+	struct gb_cap *cap;
+	int ret, minor;
+
+	if (!connection)
+		return 0;
+
+	cap = kzalloc(sizeof(*cap), GFP_KERNEL);
+	if (!cap)
+		return -ENOMEM;
+
+	cap->parent = &connection->bundle->dev;
+	cap->connection = connection;
+	mutex_init(&cap->mutex);
+	gb_connection_set_data(connection, cap);
+	kref_init(&cap->kref);
+
+	mutex_lock(&list_mutex);
+	list_add(&cap->node, &cap_list);
+	mutex_unlock(&list_mutex);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto err_list_del;
+
+	minor = ida_alloc_max(&cap_minors_map, NUM_MINORS - 1, GFP_KERNEL);
+	if (minor < 0) {
+		ret = minor;
+		goto err_connection_disable;
+	}
+
+	/* Add a char device to allow userspace to interact with cap */
+	cap->dev_num = MKDEV(MAJOR(cap_dev_num), minor);
+	cdev_init(&cap->cdev, &cap_fops);
+
+	ret = cdev_add(&cap->cdev, cap->dev_num, 1);
+	if (ret)
+		goto err_remove_ida;
+
+	/* Add a soft link to the previously added char-dev within the bundle */
+	cap->class_device = device_create(&cap_class, cap->parent, cap->dev_num,
+					  NULL, "gb-authenticate-%d", minor);
+	if (IS_ERR(cap->class_device)) {
+		ret = PTR_ERR(cap->class_device);
+		goto err_del_cdev;
+	}
+
+	return 0;
+
+err_del_cdev:
+	cdev_del(&cap->cdev);
+err_remove_ida:
+	ida_free(&cap_minors_map, minor);
+err_connection_disable:
+	gb_connection_disable(connection);
+err_list_del:
+	mutex_lock(&list_mutex);
+	list_del(&cap->node);
+	mutex_unlock(&list_mutex);
+
+	put_cap(cap);
+
+	return ret;
+}
+
+void gb_cap_connection_exit(struct gb_connection *connection)
+{
+	struct gb_cap *cap;
+
+	if (!connection)
+		return;
+
+	cap = gb_connection_get_data(connection);
+
+	device_destroy(&cap_class, cap->dev_num);
+	cdev_del(&cap->cdev);
+	ida_free(&cap_minors_map, MINOR(cap->dev_num));
+
+	/*
+	 * Disallow any new ioctl operations on the char device and wait for
+	 * existing ones to finish.
+	 */
+	mutex_lock(&cap->mutex);
+	cap->disabled = true;
+	mutex_unlock(&cap->mutex);
+
+	/* All pending greybus operations should have finished by now */
+	gb_connection_disable(cap->connection);
+
+	/* Disallow new users to get access to the cap structure */
+	mutex_lock(&list_mutex);
+	list_del(&cap->node);
+	mutex_unlock(&list_mutex);
+
+	/*
+	 * All current users of cap would have taken a reference to it by
+	 * now, we can drop our reference and wait the last user will get
+	 * cap freed.
+	 */
+	put_cap(cap);
+}
+
+int cap_init(void)
+{
+	int ret;
+
+	ret = class_register(&cap_class);
+	if (ret)
+		return ret;
+
+	ret = alloc_chrdev_region(&cap_dev_num, 0, NUM_MINORS,
+				  "gb_authenticate");
+	if (ret)
+		goto err_remove_class;
+
+	return 0;
+
+err_remove_class:
+	class_unregister(&cap_class);
+	return ret;
+}
+
+void cap_exit(void)
+{
+	unregister_chrdev_region(cap_dev_num, NUM_MINORS);
+	class_unregister(&cap_class);
+	ida_destroy(&cap_minors_map);
+}
diff --git a/drivers/staging/greybus/bootrom.c b/drivers/staging/greybus/bootrom.c
new file mode 100644
index 000000000000..d4d86b3898de
--- /dev/null
+++ b/drivers/staging/greybus/bootrom.c
@@ -0,0 +1,526 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * BOOTROM Greybus driver.
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+
+#include <linux/firmware.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/greybus.h>
+
+#include "firmware.h"
+
+/* Timeout, in jiffies, within which the next request must be received */
+#define NEXT_REQ_TIMEOUT_MS	1000
+
+/*
+ * FIXME: Reduce this timeout once svc core handles parallel processing of
+ * events from the SVC, which are handled sequentially today.
+ */
+#define MODE_SWITCH_TIMEOUT_MS	10000
+
+enum next_request_type {
+	NEXT_REQ_FIRMWARE_SIZE,
+	NEXT_REQ_GET_FIRMWARE,
+	NEXT_REQ_READY_TO_BOOT,
+	NEXT_REQ_MODE_SWITCH,
+};
+
+struct gb_bootrom {
+	struct gb_connection	*connection;
+	const struct firmware	*fw;
+	u8			protocol_major;
+	u8			protocol_minor;
+	enum next_request_type	next_request;
+	struct delayed_work	dwork;
+	struct mutex		mutex; /* Protects bootrom->fw */
+};
+
+static void free_firmware(struct gb_bootrom *bootrom)
+{
+	if (!bootrom->fw)
+		return;
+
+	release_firmware(bootrom->fw);
+	bootrom->fw = NULL;
+}
+
+static void gb_bootrom_timedout(struct work_struct *work)
+{
+	struct delayed_work *dwork = to_delayed_work(work);
+	struct gb_bootrom *bootrom = container_of(dwork,
+						  struct gb_bootrom, dwork);
+	struct device *dev = &bootrom->connection->bundle->dev;
+	const char *reason;
+
+	switch (bootrom->next_request) {
+	case NEXT_REQ_FIRMWARE_SIZE:
+		reason = "Firmware Size Request";
+		break;
+	case NEXT_REQ_GET_FIRMWARE:
+		reason = "Get Firmware Request";
+		break;
+	case NEXT_REQ_READY_TO_BOOT:
+		reason = "Ready to Boot Request";
+		break;
+	case NEXT_REQ_MODE_SWITCH:
+		reason = "Interface Mode Switch";
+		break;
+	default:
+		reason = NULL;
+		dev_err(dev, "Invalid next-request: %u", bootrom->next_request);
+		break;
+	}
+
+	dev_err(dev, "Timed out waiting for %s from the Module\n", reason);
+
+	mutex_lock(&bootrom->mutex);
+	free_firmware(bootrom);
+	mutex_unlock(&bootrom->mutex);
+
+	/* TODO: Power-off Module ? */
+}
+
+static void gb_bootrom_set_timeout(struct gb_bootrom *bootrom,
+				   enum next_request_type next,
+				   unsigned long timeout)
+{
+	bootrom->next_request = next;
+	schedule_delayed_work(&bootrom->dwork, msecs_to_jiffies(timeout));
+}
+
+static void gb_bootrom_cancel_timeout(struct gb_bootrom *bootrom)
+{
+	cancel_delayed_work_sync(&bootrom->dwork);
+}
+
+/*
+ * The es2 chip doesn't have VID/PID programmed into the hardware and we need to
+ * hack that up to distinguish different modules and their firmware blobs.
+ *
+ * This fetches VID/PID (over bootrom protocol) for es2 chip only, when VID/PID
+ * already sent during hotplug are 0.
+ *
+ * Otherwise, we keep intf->vendor_id/product_id same as what's passed
+ * during hotplug.
+ */
+static void bootrom_es2_fixup_vid_pid(struct gb_bootrom *bootrom)
+{
+	struct gb_bootrom_get_vid_pid_response response;
+	struct gb_connection *connection = bootrom->connection;
+	struct gb_interface *intf = connection->bundle->intf;
+	int ret;
+
+	if (!(intf->quirks & GB_INTERFACE_QUIRK_NO_GMP_IDS))
+		return;
+
+	ret = gb_operation_sync(connection, GB_BOOTROM_TYPE_GET_VID_PID,
+				NULL, 0, &response, sizeof(response));
+	if (ret) {
+		dev_err(&connection->bundle->dev,
+			"Bootrom get vid/pid operation failed (%d)\n", ret);
+		return;
+	}
+
+	/*
+	 * NOTE: This is hacked, so that the same values of VID/PID can be used
+	 * by next firmware level as well. The uevent for bootrom will still
+	 * have VID/PID as 0, though after this point the sysfs files will start
+	 * showing the updated values. But yeah, that's a bit racy as the same
+	 * sysfs files would be showing 0 before this point.
+	 */
+	intf->vendor_id = le32_to_cpu(response.vendor_id);
+	intf->product_id = le32_to_cpu(response.product_id);
+
+	dev_dbg(&connection->bundle->dev, "Bootrom got vid (0x%x)/pid (0x%x)\n",
+		intf->vendor_id, intf->product_id);
+}
+
+/* This returns path of the firmware blob on the disk */
+static int find_firmware(struct gb_bootrom *bootrom, u8 stage)
+{
+	struct gb_connection *connection = bootrom->connection;
+	struct gb_interface *intf = connection->bundle->intf;
+	char firmware_name[49];
+	int rc;
+
+	/* Already have a firmware, free it */
+	free_firmware(bootrom);
+
+	/* Bootrom protocol is only supported for loading Stage 2 firmware */
+	if (stage != 2) {
+		dev_err(&connection->bundle->dev, "Invalid boot stage: %u\n",
+			stage);
+		return -EINVAL;
+	}
+
+	/*
+	 * Create firmware name
+	 *
+	 * XXX Name it properly..
+	 */
+	snprintf(firmware_name, sizeof(firmware_name),
+		 FW_NAME_PREFIX "%08x_%08x_%08x_%08x_s2l.tftf",
+		 intf->ddbl1_manufacturer_id, intf->ddbl1_product_id,
+		 intf->vendor_id, intf->product_id);
+
+	// FIXME:
+	// Turn to dev_dbg later after everyone has valid bootloaders with good
+	// ids, but leave this as dev_info for now to make it easier to track
+	// down "empty" vid/pid modules.
+	dev_info(&connection->bundle->dev, "Firmware file '%s' requested\n",
+		 firmware_name);
+
+	rc = request_firmware(&bootrom->fw, firmware_name,
+			      &connection->bundle->dev);
+	if (rc) {
+		dev_err(&connection->bundle->dev,
+			"failed to find %s firmware (%d)\n", firmware_name, rc);
+	}
+
+	return rc;
+}
+
+static int gb_bootrom_firmware_size_request(struct gb_operation *op)
+{
+	struct gb_bootrom *bootrom = gb_connection_get_data(op->connection);
+	struct gb_bootrom_firmware_size_request *size_request =
+		op->request->payload;
+	struct gb_bootrom_firmware_size_response *size_response;
+	struct device *dev = &op->connection->bundle->dev;
+	int ret;
+
+	/* Disable timeouts */
+	gb_bootrom_cancel_timeout(bootrom);
+
+	if (op->request->payload_size != sizeof(*size_request)) {
+		dev_err(dev, "%s: illegal size of firmware size request (%zu != %zu)\n",
+			__func__, op->request->payload_size,
+			sizeof(*size_request));
+		ret = -EINVAL;
+		goto queue_work;
+	}
+
+	mutex_lock(&bootrom->mutex);
+
+	ret = find_firmware(bootrom, size_request->stage);
+	if (ret)
+		goto unlock;
+
+	if (!gb_operation_response_alloc(op, sizeof(*size_response),
+					 GFP_KERNEL)) {
+		dev_err(dev, "%s: error allocating response\n", __func__);
+		free_firmware(bootrom);
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	size_response = op->response->payload;
+	size_response->size = cpu_to_le32(bootrom->fw->size);
+
+	dev_dbg(dev, "%s: firmware size %d bytes\n",
+		__func__, size_response->size);
+
+unlock:
+	mutex_unlock(&bootrom->mutex);
+
+queue_work:
+	if (!ret) {
+		/* Refresh timeout */
+		gb_bootrom_set_timeout(bootrom, NEXT_REQ_GET_FIRMWARE,
+				       NEXT_REQ_TIMEOUT_MS);
+	}
+
+	return ret;
+}
+
+static int gb_bootrom_get_firmware(struct gb_operation *op)
+{
+	struct gb_bootrom *bootrom = gb_connection_get_data(op->connection);
+	const struct firmware *fw;
+	struct gb_bootrom_get_firmware_request *firmware_request;
+	struct device *dev = &op->connection->bundle->dev;
+	unsigned int offset, size;
+	enum next_request_type next_request;
+	u8 *firmware_response;
+	int ret = 0;
+
+	/* Disable timeouts */
+	gb_bootrom_cancel_timeout(bootrom);
+
+	if (op->request->payload_size != sizeof(*firmware_request)) {
+		dev_err(dev, "%s: Illegal size of get firmware request (%zu %zu)\n",
+			__func__, op->request->payload_size,
+			sizeof(*firmware_request));
+		ret = -EINVAL;
+		goto queue_work;
+	}
+
+	mutex_lock(&bootrom->mutex);
+
+	fw = bootrom->fw;
+	if (!fw) {
+		dev_err(dev, "%s: firmware not available\n", __func__);
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	firmware_request = op->request->payload;
+	offset = le32_to_cpu(firmware_request->offset);
+	size = le32_to_cpu(firmware_request->size);
+
+	if (offset >= fw->size || size > fw->size - offset) {
+		dev_warn(dev, "bad firmware request (offs = %u, size = %u)\n",
+			 offset, size);
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	/* gb_bootrom_get_firmware_response contains only a byte array */
+	if (!gb_operation_response_alloc(op, size, GFP_KERNEL)) {
+		dev_err(dev, "%s: error allocating response\n", __func__);
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	firmware_response = op->response->payload;
+	memcpy(firmware_response, fw->data + offset, size);
+
+	dev_dbg(dev, "responding with firmware (offs = %u, size = %u)\n",
+		offset, size);
+
+unlock:
+	mutex_unlock(&bootrom->mutex);
+
+queue_work:
+	/* Refresh timeout */
+	if (!ret && (offset + size == fw->size))
+		next_request = NEXT_REQ_READY_TO_BOOT;
+	else
+		next_request = NEXT_REQ_GET_FIRMWARE;
+
+	gb_bootrom_set_timeout(bootrom, next_request, NEXT_REQ_TIMEOUT_MS);
+
+	return ret;
+}
+
+static int gb_bootrom_ready_to_boot(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_bootrom *bootrom = gb_connection_get_data(connection);
+	struct gb_bootrom_ready_to_boot_request *rtb_request;
+	struct device *dev = &connection->bundle->dev;
+	u8 status;
+	int ret = 0;
+
+	/* Disable timeouts */
+	gb_bootrom_cancel_timeout(bootrom);
+
+	if (op->request->payload_size != sizeof(*rtb_request)) {
+		dev_err(dev, "%s: Illegal size of ready to boot request (%zu %zu)\n",
+			__func__, op->request->payload_size,
+			sizeof(*rtb_request));
+		ret = -EINVAL;
+		goto queue_work;
+	}
+
+	rtb_request = op->request->payload;
+	status = rtb_request->status;
+
+	/* Return error if the blob was invalid */
+	if (status == GB_BOOTROM_BOOT_STATUS_INVALID) {
+		ret = -EINVAL;
+		goto queue_work;
+	}
+
+	/*
+	 * XXX Should we return error for insecure firmware?
+	 */
+	dev_dbg(dev, "ready to boot: 0x%x, 0\n", status);
+
+queue_work:
+	/*
+	 * Refresh timeout, the Interface shall load the new personality and
+	 * send a new hotplug request, which shall get rid of the bootrom
+	 * connection. As that can take some time, increase the timeout a bit.
+	 */
+	gb_bootrom_set_timeout(bootrom, NEXT_REQ_MODE_SWITCH,
+			       MODE_SWITCH_TIMEOUT_MS);
+
+	return ret;
+}
+
+static int gb_bootrom_request_handler(struct gb_operation *op)
+{
+	u8 type = op->type;
+
+	switch (type) {
+	case GB_BOOTROM_TYPE_FIRMWARE_SIZE:
+		return gb_bootrom_firmware_size_request(op);
+	case GB_BOOTROM_TYPE_GET_FIRMWARE:
+		return gb_bootrom_get_firmware(op);
+	case GB_BOOTROM_TYPE_READY_TO_BOOT:
+		return gb_bootrom_ready_to_boot(op);
+	default:
+		dev_err(&op->connection->bundle->dev,
+			"unsupported request: %u\n", type);
+		return -EINVAL;
+	}
+}
+
+static int gb_bootrom_get_version(struct gb_bootrom *bootrom)
+{
+	struct gb_bundle *bundle = bootrom->connection->bundle;
+	struct gb_bootrom_version_request request;
+	struct gb_bootrom_version_response response;
+	int ret;
+
+	request.major = GB_BOOTROM_VERSION_MAJOR;
+	request.minor = GB_BOOTROM_VERSION_MINOR;
+
+	ret = gb_operation_sync(bootrom->connection,
+				GB_BOOTROM_TYPE_VERSION,
+				&request, sizeof(request), &response,
+				sizeof(response));
+	if (ret) {
+		dev_err(&bundle->dev,
+			"failed to get protocol version: %d\n",
+			ret);
+		return ret;
+	}
+
+	if (response.major > request.major) {
+		dev_err(&bundle->dev,
+			"unsupported major protocol version (%u > %u)\n",
+			response.major, request.major);
+		return -ENOTSUPP;
+	}
+
+	bootrom->protocol_major = response.major;
+	bootrom->protocol_minor = response.minor;
+
+	dev_dbg(&bundle->dev, "%s - %u.%u\n", __func__, response.major,
+		response.minor);
+
+	return 0;
+}
+
+static int gb_bootrom_probe(struct gb_bundle *bundle,
+			    const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_bootrom *bootrom;
+	int ret;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_BOOTROM)
+		return -ENODEV;
+
+	bootrom = kzalloc(sizeof(*bootrom), GFP_KERNEL);
+	if (!bootrom)
+		return -ENOMEM;
+
+	connection = gb_connection_create(bundle,
+					  le16_to_cpu(cport_desc->id),
+					  gb_bootrom_request_handler);
+	if (IS_ERR(connection)) {
+		ret = PTR_ERR(connection);
+		goto err_free_bootrom;
+	}
+
+	gb_connection_set_data(connection, bootrom);
+
+	bootrom->connection = connection;
+
+	mutex_init(&bootrom->mutex);
+	INIT_DELAYED_WORK(&bootrom->dwork, gb_bootrom_timedout);
+	greybus_set_drvdata(bundle, bootrom);
+
+	ret = gb_connection_enable_tx(connection);
+	if (ret)
+		goto err_connection_destroy;
+
+	ret = gb_bootrom_get_version(bootrom);
+	if (ret)
+		goto err_connection_disable;
+
+	bootrom_es2_fixup_vid_pid(bootrom);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto err_connection_disable;
+
+	/* Refresh timeout */
+	gb_bootrom_set_timeout(bootrom, NEXT_REQ_FIRMWARE_SIZE,
+			       NEXT_REQ_TIMEOUT_MS);
+
+	/* Tell bootrom we're ready. */
+	ret = gb_operation_sync(connection, GB_BOOTROM_TYPE_AP_READY, NULL, 0,
+				NULL, 0);
+	if (ret) {
+		dev_err(&connection->bundle->dev,
+			"failed to send AP READY: %d\n", ret);
+		goto err_cancel_timeout;
+	}
+
+	dev_dbg(&bundle->dev, "AP_READY sent\n");
+
+	return 0;
+
+err_cancel_timeout:
+	gb_bootrom_cancel_timeout(bootrom);
+err_connection_disable:
+	gb_connection_disable(connection);
+err_connection_destroy:
+	gb_connection_destroy(connection);
+err_free_bootrom:
+	kfree(bootrom);
+
+	return ret;
+}
+
+static void gb_bootrom_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_bootrom *bootrom = greybus_get_drvdata(bundle);
+
+	gb_connection_disable(bootrom->connection);
+
+	/* Disable timeouts */
+	gb_bootrom_cancel_timeout(bootrom);
+
+	/*
+	 * Release firmware:
+	 *
+	 * As the connection and the delayed work are already disabled, we don't
+	 * need to lock access to bootrom->fw here.
+	 */
+	free_firmware(bootrom);
+
+	gb_connection_destroy(bootrom->connection);
+	kfree(bootrom);
+}
+
+static const struct greybus_bundle_id gb_bootrom_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_BOOTROM) },
+	{ }
+};
+
+static struct greybus_driver gb_bootrom_driver = {
+	.name		= "bootrom",
+	.probe		= gb_bootrom_probe,
+	.disconnect	= gb_bootrom_disconnect,
+	.id_table	= gb_bootrom_id_table,
+};
+
+module_greybus_driver(gb_bootrom_driver);
+
+MODULE_DESCRIPTION("BOOTROM Greybus driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c
new file mode 100644
index 000000000000..5ac19c0055d9
--- /dev/null
+++ b/drivers/staging/greybus/camera.c
@@ -0,0 +1,1367 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Camera protocol driver.
+ *
+ * Copyright 2015 Google Inc.
+ * Copyright 2015 Linaro Ltd.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/uaccess.h>
+#include <linux/vmalloc.h>
+#include <linux/greybus.h>
+
+#include "gb-camera.h"
+#include "greybus_protocols.h"
+
+enum gb_camera_debugs_buffer_id {
+	GB_CAMERA_DEBUGFS_BUFFER_CAPABILITIES,
+	GB_CAMERA_DEBUGFS_BUFFER_STREAMS,
+	GB_CAMERA_DEBUGFS_BUFFER_CAPTURE,
+	GB_CAMERA_DEBUGFS_BUFFER_FLUSH,
+	GB_CAMERA_DEBUGFS_BUFFER_MAX,
+};
+
+struct gb_camera_debugfs_buffer {
+	char data[PAGE_SIZE];
+	size_t length;
+};
+
+enum gb_camera_state {
+	GB_CAMERA_STATE_UNCONFIGURED,
+	GB_CAMERA_STATE_CONFIGURED,
+};
+
+/**
+ * struct gb_camera - A Greybus Camera Device
+ * @connection: the greybus connection for camera management
+ * @data_connection: the greybus connection for camera data
+ * @data_cport_id: the data CPort ID on the module side
+ * @mutex: protects the connection and state fields
+ * @state: the current module state
+ * @debugfs: debugfs entries for camera protocol operations testing
+ * @module: Greybus camera module registered to HOST processor.
+ */
+struct gb_camera {
+	struct gb_bundle *bundle;
+	struct gb_connection *connection;
+	struct gb_connection *data_connection;
+	u16 data_cport_id;
+
+	struct mutex mutex;
+	enum gb_camera_state state;
+
+	struct {
+		struct dentry *root;
+		struct gb_camera_debugfs_buffer *buffers;
+	} debugfs;
+
+	struct gb_camera_module module;
+};
+
+struct gb_camera_stream_config {
+	unsigned int width;
+	unsigned int height;
+	unsigned int format;
+	unsigned int vc;
+	unsigned int dt[2];
+	unsigned int max_size;
+};
+
+struct gb_camera_fmt_info {
+	enum v4l2_mbus_pixelcode mbus_code;
+	unsigned int gb_format;
+	unsigned int bpp;
+};
+
+/* GB format to media code map */
+static const struct gb_camera_fmt_info gb_fmt_info[] = {
+	{
+		.mbus_code = V4L2_MBUS_FMT_UYVY8_1X16,
+		.gb_format = 0x01,
+		.bpp	   = 16,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_NV12_1x8,
+		.gb_format = 0x12,
+		.bpp	   = 12,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_NV21_1x8,
+		.gb_format = 0x13,
+		.bpp	   = 12,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_YU12_1x8,
+		.gb_format = 0x16,
+		.bpp	   = 12,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_YV12_1x8,
+		.gb_format = 0x17,
+		.bpp	   = 12,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_JPEG_1X8,
+		.gb_format = 0x40,
+		.bpp	   = 0,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_GB_CAM_METADATA_1X8,
+		.gb_format = 0x41,
+		.bpp	   = 0,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_GB_CAM_DEBUG_DATA_1X8,
+		.gb_format = 0x42,
+		.bpp	   = 0,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SBGGR10_1X10,
+		.gb_format = 0x80,
+		.bpp	   = 10,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SGBRG10_1X10,
+		.gb_format = 0x81,
+		.bpp	   = 10,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SGRBG10_1X10,
+		.gb_format = 0x82,
+		.bpp	   = 10,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SRGGB10_1X10,
+		.gb_format = 0x83,
+		.bpp	   = 10,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SBGGR12_1X12,
+		.gb_format = 0x84,
+		.bpp	   = 12,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SGBRG12_1X12,
+		.gb_format = 0x85,
+		.bpp	   = 12,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SGRBG12_1X12,
+		.gb_format = 0x86,
+		.bpp	   = 12,
+	},
+	{
+		.mbus_code = V4L2_MBUS_FMT_SRGGB12_1X12,
+		.gb_format = 0x87,
+		.bpp	   = 12,
+	},
+};
+
+static const struct gb_camera_fmt_info *gb_camera_get_format_info(u16 gb_fmt)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(gb_fmt_info); i++) {
+		if (gb_fmt_info[i].gb_format == gb_fmt)
+			return &gb_fmt_info[i];
+	}
+
+	return NULL;
+}
+
+#define ES2_APB_CDSI0_CPORT		16
+#define ES2_APB_CDSI1_CPORT		17
+
+#define GB_CAMERA_MAX_SETTINGS_SIZE	8192
+
+static int gb_camera_operation_sync_flags(struct gb_connection *connection,
+					  int type, unsigned int flags,
+					  void *request, size_t request_size,
+					  void *response, size_t *response_size)
+{
+	struct gb_operation *operation;
+	int ret;
+
+	operation = gb_operation_create_flags(connection, type, request_size,
+					      *response_size, flags,
+					      GFP_KERNEL);
+	if (!operation)
+		return  -ENOMEM;
+
+	if (request_size)
+		memcpy(operation->request->payload, request, request_size);
+
+	ret = gb_operation_request_send_sync(operation);
+	if (ret) {
+		dev_err(&connection->hd->dev,
+			"%s: synchronous operation of type 0x%02x failed: %d\n",
+			connection->name, type, ret);
+	} else {
+		*response_size = operation->response->payload_size;
+
+		if (operation->response->payload_size)
+			memcpy(response, operation->response->payload,
+			       operation->response->payload_size);
+	}
+
+	gb_operation_put(operation);
+
+	return ret;
+}
+
+static int gb_camera_get_max_pkt_size(struct gb_camera *gcam,
+				      struct gb_camera_configure_streams_response *resp)
+{
+	unsigned int max_pkt_size = 0;
+	unsigned int i;
+
+	for (i = 0; i < resp->num_streams; i++) {
+		struct gb_camera_stream_config_response *cfg = &resp->config[i];
+		const struct gb_camera_fmt_info *fmt_info;
+		unsigned int pkt_size;
+
+		fmt_info = gb_camera_get_format_info(cfg->format);
+		if (!fmt_info) {
+			dev_err(&gcam->bundle->dev, "unsupported greybus image format: %d\n",
+				cfg->format);
+			return -EIO;
+		}
+
+		if (fmt_info->bpp == 0) {
+			pkt_size = le32_to_cpu(cfg->max_pkt_size);
+
+			if (pkt_size == 0) {
+				dev_err(&gcam->bundle->dev,
+					"Stream %u: invalid zero maximum packet size\n",
+					i);
+				return -EIO;
+			}
+		} else {
+			pkt_size = le16_to_cpu(cfg->width) * fmt_info->bpp / 8;
+
+			if (pkt_size != le32_to_cpu(cfg->max_pkt_size)) {
+				dev_err(&gcam->bundle->dev,
+					"Stream %u: maximum packet size mismatch (%u/%u)\n",
+					i, pkt_size, cfg->max_pkt_size);
+				return -EIO;
+			}
+		}
+
+		max_pkt_size = max(pkt_size, max_pkt_size);
+	}
+
+	return max_pkt_size;
+}
+
+/*
+ * Validate the stream configuration response verifying padding is correctly
+ * set and the returned number of streams is supported
+ */
+static const int gb_camera_configure_streams_validate_response(struct gb_camera *gcam,
+		struct gb_camera_configure_streams_response *resp,
+		unsigned int nstreams)
+{
+	unsigned int i;
+
+	/* Validate the returned response structure */
+	if (resp->padding[0] || resp->padding[1]) {
+		dev_err(&gcam->bundle->dev, "response padding != 0\n");
+		return -EIO;
+	}
+
+	if (resp->num_streams > nstreams) {
+		dev_err(&gcam->bundle->dev, "got #streams %u > request %u\n",
+			resp->num_streams, nstreams);
+		return -EIO;
+	}
+
+	for (i = 0; i < resp->num_streams; i++) {
+		struct gb_camera_stream_config_response *cfg = &resp->config[i];
+
+		if (cfg->padding) {
+			dev_err(&gcam->bundle->dev, "stream #%u padding != 0\n", i);
+			return -EIO;
+		}
+	}
+
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * Hardware Configuration
+ */
+
+static int gb_camera_set_intf_power_mode(struct gb_camera *gcam, u8 intf_id,
+					 bool hs)
+{
+	struct gb_svc *svc = gcam->connection->hd->svc;
+	int ret;
+
+	if (hs)
+		ret = gb_svc_intf_set_power_mode(svc, intf_id,
+						 GB_SVC_UNIPRO_HS_SERIES_A,
+						 GB_SVC_UNIPRO_FAST_MODE, 2, 2,
+						 GB_SVC_SMALL_AMPLITUDE,
+						 GB_SVC_NO_DE_EMPHASIS,
+						 GB_SVC_UNIPRO_FAST_MODE, 2, 2,
+						 GB_SVC_PWRM_RXTERMINATION |
+						 GB_SVC_PWRM_TXTERMINATION, 0,
+						 NULL, NULL);
+	else
+		ret = gb_svc_intf_set_power_mode(svc, intf_id,
+						 GB_SVC_UNIPRO_HS_SERIES_A,
+						 GB_SVC_UNIPRO_SLOW_AUTO_MODE,
+						 2, 1,
+						 GB_SVC_SMALL_AMPLITUDE,
+						 GB_SVC_NO_DE_EMPHASIS,
+						 GB_SVC_UNIPRO_SLOW_AUTO_MODE,
+						 2, 1,
+						 0, 0,
+						 NULL, NULL);
+
+	return ret;
+}
+
+static int gb_camera_set_power_mode(struct gb_camera *gcam, bool hs)
+{
+	struct gb_interface *intf = gcam->connection->intf;
+	struct gb_svc *svc = gcam->connection->hd->svc;
+	int ret;
+
+	ret = gb_camera_set_intf_power_mode(gcam, intf->interface_id, hs);
+	if (ret < 0) {
+		dev_err(&gcam->bundle->dev, "failed to set module interface to %s (%d)\n",
+			hs ? "HS" : "PWM", ret);
+		return ret;
+	}
+
+	ret = gb_camera_set_intf_power_mode(gcam, svc->ap_intf_id, hs);
+	if (ret < 0) {
+		gb_camera_set_intf_power_mode(gcam, intf->interface_id, !hs);
+		dev_err(&gcam->bundle->dev, "failed to set AP interface to %s (%d)\n",
+			hs ? "HS" : "PWM", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+struct ap_csi_config_request {
+	__u8 csi_id;
+	__u8 flags;
+#define GB_CAMERA_CSI_FLAG_CLOCK_CONTINUOUS 0x01
+	__u8 num_lanes;
+	__u8 padding;
+	__le32 csi_clk_freq;
+	__le32 max_pkt_size;
+} __packed;
+
+/*
+ * TODO: Compute the number of lanes dynamically based on bandwidth
+ * requirements.
+ */
+#define GB_CAMERA_CSI_NUM_DATA_LANES		4
+
+#define GB_CAMERA_CSI_CLK_FREQ_MAX		999000000U
+#define GB_CAMERA_CSI_CLK_FREQ_MIN		100000000U
+#define GB_CAMERA_CSI_CLK_FREQ_MARGIN		150000000U
+
+static int gb_camera_setup_data_connection(struct gb_camera *gcam,
+					   struct gb_camera_configure_streams_response *resp,
+					   struct gb_camera_csi_params *csi_params)
+{
+	struct ap_csi_config_request csi_cfg;
+	struct gb_connection *conn;
+	unsigned int clk_freq;
+	int ret;
+
+	/*
+	 * Create the data connection between the camera module data CPort and
+	 * APB CDSI1. The CDSI1 CPort ID is hardcoded by the ES2 bridge.
+	 */
+	conn = gb_connection_create_offloaded(gcam->bundle, gcam->data_cport_id,
+					      GB_CONNECTION_FLAG_NO_FLOWCTRL |
+					      GB_CONNECTION_FLAG_CDSI1);
+	if (IS_ERR(conn))
+		return PTR_ERR(conn);
+
+	gcam->data_connection = conn;
+	gb_connection_set_data(conn, gcam);
+
+	ret = gb_connection_enable(conn);
+	if (ret)
+		goto error_conn_destroy;
+
+	/* Set the UniPro link to high speed mode. */
+	ret = gb_camera_set_power_mode(gcam, true);
+	if (ret < 0)
+		goto error_conn_disable;
+
+	/*
+	 * Configure the APB-A CSI-2 transmitter.
+	 *
+	 * Hardcode the number of lanes to 4 and compute the bus clock frequency
+	 * based on the module bandwidth requirements with a safety margin.
+	 */
+	memset(&csi_cfg, 0, sizeof(csi_cfg));
+	csi_cfg.csi_id = 1;
+	csi_cfg.flags = 0;
+	csi_cfg.num_lanes = GB_CAMERA_CSI_NUM_DATA_LANES;
+
+	clk_freq = resp->data_rate / 2 / GB_CAMERA_CSI_NUM_DATA_LANES;
+	clk_freq = clamp(clk_freq + GB_CAMERA_CSI_CLK_FREQ_MARGIN,
+			 GB_CAMERA_CSI_CLK_FREQ_MIN,
+			 GB_CAMERA_CSI_CLK_FREQ_MAX);
+	csi_cfg.csi_clk_freq = clk_freq;
+
+	ret = gb_camera_get_max_pkt_size(gcam, resp);
+	if (ret < 0) {
+		ret = -EIO;
+		goto error_power;
+	}
+	csi_cfg.max_pkt_size = ret;
+
+	ret = gb_hd_output(gcam->connection->hd, &csi_cfg,
+			   sizeof(csi_cfg),
+			   GB_APB_REQUEST_CSI_TX_CONTROL, false);
+	if (ret < 0) {
+		dev_err(&gcam->bundle->dev, "failed to start the CSI transmitter\n");
+		goto error_power;
+	}
+
+	if (csi_params) {
+		csi_params->clk_freq = csi_cfg.csi_clk_freq;
+		csi_params->num_lanes = csi_cfg.num_lanes;
+	}
+
+	return 0;
+
+error_power:
+	gb_camera_set_power_mode(gcam, false);
+error_conn_disable:
+	gb_connection_disable(gcam->data_connection);
+error_conn_destroy:
+	gb_connection_destroy(gcam->data_connection);
+	gcam->data_connection = NULL;
+	return ret;
+}
+
+static void gb_camera_teardown_data_connection(struct gb_camera *gcam)
+{
+	struct ap_csi_config_request csi_cfg;
+	int ret;
+
+	/* Stop the APB1 CSI transmitter. */
+	memset(&csi_cfg, 0, sizeof(csi_cfg));
+	csi_cfg.csi_id = 1;
+
+	ret = gb_hd_output(gcam->connection->hd, &csi_cfg,
+			   sizeof(csi_cfg),
+			   GB_APB_REQUEST_CSI_TX_CONTROL, false);
+
+	if (ret < 0)
+		dev_err(&gcam->bundle->dev, "failed to stop the CSI transmitter\n");
+
+	/* Set the UniPro link to low speed mode. */
+	gb_camera_set_power_mode(gcam, false);
+
+	/* Destroy the data connection. */
+	gb_connection_disable(gcam->data_connection);
+	gb_connection_destroy(gcam->data_connection);
+	gcam->data_connection = NULL;
+}
+
+/* -----------------------------------------------------------------------------
+ * Camera Protocol Operations
+ */
+
+static int gb_camera_capabilities(struct gb_camera *gcam,
+				  u8 *capabilities, size_t *size)
+{
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(gcam->bundle);
+	if (ret)
+		return ret;
+
+	mutex_lock(&gcam->mutex);
+
+	if (!gcam->connection) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	ret = gb_camera_operation_sync_flags(gcam->connection,
+					     GB_CAMERA_TYPE_CAPABILITIES,
+					     GB_OPERATION_FLAG_SHORT_RESPONSE,
+					     NULL, 0,
+					     (void *)capabilities, size);
+	if (ret)
+		dev_err(&gcam->bundle->dev, "failed to retrieve capabilities: %d\n", ret);
+
+done:
+	mutex_unlock(&gcam->mutex);
+
+	gb_pm_runtime_put_autosuspend(gcam->bundle);
+
+	return ret;
+}
+
+static int gb_camera_configure_streams(struct gb_camera *gcam,
+				       unsigned int *num_streams,
+				       unsigned int *flags,
+				       struct gb_camera_stream_config *streams,
+				       struct gb_camera_csi_params *csi_params)
+{
+	struct gb_camera_configure_streams_request *req;
+	struct gb_camera_configure_streams_response *resp;
+	unsigned int nstreams = *num_streams;
+	unsigned int i;
+	size_t req_size;
+	size_t resp_size;
+	int ret;
+
+	if (nstreams > GB_CAMERA_MAX_STREAMS)
+		return -EINVAL;
+
+	req_size = sizeof(*req) + nstreams * sizeof(req->config[0]);
+	resp_size = sizeof(*resp) + nstreams * sizeof(resp->config[0]);
+
+	req = kmalloc(req_size, GFP_KERNEL);
+	resp = kmalloc(resp_size, GFP_KERNEL);
+	if (!req || !resp) {
+		kfree(req);
+		kfree(resp);
+		return -ENOMEM;
+	}
+
+	req->num_streams = nstreams;
+	req->flags = *flags;
+	req->padding = 0;
+
+	for (i = 0; i < nstreams; ++i) {
+		struct gb_camera_stream_config_request *cfg = &req->config[i];
+
+		cfg->width = cpu_to_le16(streams[i].width);
+		cfg->height = cpu_to_le16(streams[i].height);
+		cfg->format = cpu_to_le16(streams[i].format);
+		cfg->padding = 0;
+	}
+
+	mutex_lock(&gcam->mutex);
+
+	ret = gb_pm_runtime_get_sync(gcam->bundle);
+	if (ret)
+		goto done_skip_pm_put;
+
+	if (!gcam->connection) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	ret = gb_camera_operation_sync_flags(gcam->connection,
+					     GB_CAMERA_TYPE_CONFIGURE_STREAMS,
+					     GB_OPERATION_FLAG_SHORT_RESPONSE,
+					     req, req_size,
+					     resp, &resp_size);
+	if (ret < 0)
+		goto done;
+
+	ret = gb_camera_configure_streams_validate_response(gcam, resp,
+							    nstreams);
+	if (ret < 0)
+		goto done;
+
+	*flags = resp->flags;
+	*num_streams = resp->num_streams;
+
+	for (i = 0; i < resp->num_streams; ++i) {
+		struct gb_camera_stream_config_response *cfg = &resp->config[i];
+
+		streams[i].width = le16_to_cpu(cfg->width);
+		streams[i].height = le16_to_cpu(cfg->height);
+		streams[i].format = le16_to_cpu(cfg->format);
+		streams[i].vc = cfg->virtual_channel;
+		streams[i].dt[0] = cfg->data_type[0];
+		streams[i].dt[1] = cfg->data_type[1];
+		streams[i].max_size = le32_to_cpu(cfg->max_size);
+	}
+
+	if ((resp->flags & GB_CAMERA_CONFIGURE_STREAMS_ADJUSTED) ||
+	    (req->flags & GB_CAMERA_CONFIGURE_STREAMS_TEST_ONLY))
+		goto done;
+
+	if (gcam->state == GB_CAMERA_STATE_CONFIGURED) {
+		gb_camera_teardown_data_connection(gcam);
+		gcam->state = GB_CAMERA_STATE_UNCONFIGURED;
+
+		/*
+		 * When unconfiguring streams release the PM runtime reference
+		 * that was acquired when streams were configured. The bundle
+		 * won't be suspended until the PM runtime reference acquired at
+		 * the beginning of this function gets released right before
+		 * returning.
+		 */
+		gb_pm_runtime_put_noidle(gcam->bundle);
+	}
+
+	if (resp->num_streams == 0)
+		goto done;
+
+	/*
+	 * Make sure the bundle won't be suspended until streams get
+	 * unconfigured after the stream is configured successfully
+	 */
+	gb_pm_runtime_get_noresume(gcam->bundle);
+
+	/* Setup CSI-2 connection from APB-A to AP */
+	ret = gb_camera_setup_data_connection(gcam, resp, csi_params);
+	if (ret < 0) {
+		memset(req, 0, sizeof(*req));
+		gb_operation_sync(gcam->connection,
+				  GB_CAMERA_TYPE_CONFIGURE_STREAMS,
+				  req, sizeof(*req),
+				  resp, sizeof(*resp));
+		*flags = 0;
+		*num_streams = 0;
+		gb_pm_runtime_put_noidle(gcam->bundle);
+		goto done;
+	}
+
+	gcam->state = GB_CAMERA_STATE_CONFIGURED;
+
+done:
+	gb_pm_runtime_put_autosuspend(gcam->bundle);
+
+done_skip_pm_put:
+	mutex_unlock(&gcam->mutex);
+	kfree(req);
+	kfree(resp);
+	return ret;
+}
+
+static int gb_camera_capture(struct gb_camera *gcam, u32 request_id,
+			     unsigned int streams, unsigned int num_frames,
+			     size_t settings_size, const void *settings)
+{
+	struct gb_camera_capture_request *req;
+	size_t req_size;
+	int ret;
+
+	if (settings_size > GB_CAMERA_MAX_SETTINGS_SIZE)
+		return -EINVAL;
+
+	req_size = sizeof(*req) + settings_size;
+	req = kmalloc(req_size, GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	req->request_id = cpu_to_le32(request_id);
+	req->streams = streams;
+	req->padding = 0;
+	req->num_frames = cpu_to_le16(num_frames);
+	memcpy(req->settings, settings, settings_size);
+
+	mutex_lock(&gcam->mutex);
+
+	if (!gcam->connection) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	ret = gb_operation_sync(gcam->connection, GB_CAMERA_TYPE_CAPTURE,
+				req, req_size, NULL, 0);
+done:
+	mutex_unlock(&gcam->mutex);
+
+	kfree(req);
+
+	return ret;
+}
+
+static int gb_camera_flush(struct gb_camera *gcam, u32 *request_id)
+{
+	struct gb_camera_flush_response resp;
+	int ret;
+
+	mutex_lock(&gcam->mutex);
+
+	if (!gcam->connection) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	ret = gb_operation_sync(gcam->connection, GB_CAMERA_TYPE_FLUSH, NULL, 0,
+				&resp, sizeof(resp));
+
+	if (ret < 0)
+		goto done;
+
+	if (request_id)
+		*request_id = le32_to_cpu(resp.request_id);
+
+done:
+	mutex_unlock(&gcam->mutex);
+
+	return ret;
+}
+
+static int gb_camera_request_handler(struct gb_operation *op)
+{
+	struct gb_camera *gcam = gb_connection_get_data(op->connection);
+	struct gb_camera_metadata_request *payload;
+	struct gb_message *request;
+
+	if (op->type != GB_CAMERA_TYPE_METADATA) {
+		dev_err(&gcam->bundle->dev, "Unsupported unsolicited event: %u\n", op->type);
+		return -EINVAL;
+	}
+
+	request = op->request;
+
+	if (request->payload_size < sizeof(*payload)) {
+		dev_err(&gcam->bundle->dev, "Wrong event size received (%zu < %zu)\n",
+			request->payload_size, sizeof(*payload));
+		return -EINVAL;
+	}
+
+	payload = request->payload;
+
+	dev_dbg(&gcam->bundle->dev, "received metadata for request %u, frame %u, stream %u\n",
+		payload->request_id, payload->frame_number, payload->stream);
+
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * Interface with HOST gmp camera.
+ */
+static unsigned int gb_camera_mbus_to_gb(enum v4l2_mbus_pixelcode mbus_code)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(gb_fmt_info); i++) {
+		if (gb_fmt_info[i].mbus_code == mbus_code)
+			return gb_fmt_info[i].gb_format;
+	}
+	return gb_fmt_info[0].gb_format;
+}
+
+static enum v4l2_mbus_pixelcode gb_camera_gb_to_mbus(u16 gb_fmt)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(gb_fmt_info); i++) {
+		if (gb_fmt_info[i].gb_format == gb_fmt)
+			return gb_fmt_info[i].mbus_code;
+	}
+	return gb_fmt_info[0].mbus_code;
+}
+
+static ssize_t gb_camera_op_capabilities(void *priv, char *data, size_t len)
+{
+	struct gb_camera *gcam = priv;
+	size_t capabilities_len = len;
+	int ret;
+
+	ret = gb_camera_capabilities(gcam, data, &capabilities_len);
+	if (ret)
+		return ret;
+
+	return capabilities_len;
+}
+
+static int gb_camera_op_configure_streams(void *priv, unsigned int *nstreams,
+					  unsigned int *flags, struct gb_camera_stream *streams,
+					  struct gb_camera_csi_params *csi_params)
+{
+	struct gb_camera *gcam = priv;
+	struct gb_camera_stream_config *gb_streams;
+	unsigned int gb_flags = 0;
+	unsigned int gb_nstreams = *nstreams;
+	unsigned int i;
+	int ret;
+
+	if (gb_nstreams > GB_CAMERA_MAX_STREAMS)
+		return -EINVAL;
+
+	gb_streams = kcalloc(gb_nstreams, sizeof(*gb_streams), GFP_KERNEL);
+	if (!gb_streams)
+		return -ENOMEM;
+
+	for (i = 0; i < gb_nstreams; i++) {
+		gb_streams[i].width = streams[i].width;
+		gb_streams[i].height = streams[i].height;
+		gb_streams[i].format =
+			gb_camera_mbus_to_gb(streams[i].pixel_code);
+	}
+
+	if (*flags & GB_CAMERA_IN_FLAG_TEST)
+		gb_flags |= GB_CAMERA_CONFIGURE_STREAMS_TEST_ONLY;
+
+	ret = gb_camera_configure_streams(gcam, &gb_nstreams,
+					  &gb_flags, gb_streams, csi_params);
+	if (ret < 0)
+		goto done;
+	if (gb_nstreams > *nstreams) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	*flags = 0;
+	if (gb_flags & GB_CAMERA_CONFIGURE_STREAMS_ADJUSTED)
+		*flags |= GB_CAMERA_OUT_FLAG_ADJUSTED;
+
+	for (i = 0; i < gb_nstreams; i++) {
+		streams[i].width = gb_streams[i].width;
+		streams[i].height = gb_streams[i].height;
+		streams[i].vc = gb_streams[i].vc;
+		streams[i].dt[0] = gb_streams[i].dt[0];
+		streams[i].dt[1] = gb_streams[i].dt[1];
+		streams[i].max_size = gb_streams[i].max_size;
+		streams[i].pixel_code =
+			gb_camera_gb_to_mbus(gb_streams[i].format);
+	}
+	*nstreams = gb_nstreams;
+
+done:
+	kfree(gb_streams);
+	return ret;
+}
+
+static int gb_camera_op_capture(void *priv, u32 request_id,
+				unsigned int streams, unsigned int num_frames,
+				size_t settings_size, const void *settings)
+{
+	struct gb_camera *gcam = priv;
+
+	return gb_camera_capture(gcam, request_id, streams, num_frames,
+				 settings_size, settings);
+}
+
+static int gb_camera_op_flush(void *priv, u32 *request_id)
+{
+	struct gb_camera *gcam = priv;
+
+	return gb_camera_flush(gcam, request_id);
+}
+
+static const struct gb_camera_ops gb_cam_ops = {
+	.capabilities = gb_camera_op_capabilities,
+	.configure_streams = gb_camera_op_configure_streams,
+	.capture = gb_camera_op_capture,
+	.flush = gb_camera_op_flush,
+};
+
+/* -----------------------------------------------------------------------------
+ * DebugFS
+ */
+
+static ssize_t gb_camera_debugfs_capabilities(struct gb_camera *gcam,
+					      char *buf, size_t len)
+{
+	struct gb_camera_debugfs_buffer *buffer =
+		&gcam->debugfs.buffers[GB_CAMERA_DEBUGFS_BUFFER_CAPABILITIES];
+	size_t size = 1024;
+	unsigned int i;
+	u8 *caps;
+	int ret;
+
+	caps = kmalloc(size, GFP_KERNEL);
+	if (!caps)
+		return -ENOMEM;
+
+	ret = gb_camera_capabilities(gcam, caps, &size);
+	if (ret < 0)
+		goto done;
+
+	/*
+	 * hex_dump_to_buffer() doesn't return the number of bytes dumped prior
+	 * to v4.0, we need our own implementation :-(
+	 */
+	buffer->length = 0;
+
+	for (i = 0; i < size; i += 16) {
+		unsigned int nbytes = min_t(unsigned int, size - i, 16);
+
+		buffer->length += sprintf(buffer->data + buffer->length,
+					  "%*ph\n", nbytes, caps + i);
+	}
+
+done:
+	kfree(caps);
+	return ret;
+}
+
+static ssize_t gb_camera_debugfs_configure_streams(struct gb_camera *gcam,
+						   char *buf, size_t len)
+{
+	struct gb_camera_debugfs_buffer *buffer =
+		&gcam->debugfs.buffers[GB_CAMERA_DEBUGFS_BUFFER_STREAMS];
+	struct gb_camera_stream_config *streams;
+	unsigned int nstreams;
+	unsigned int flags;
+	unsigned int i;
+	char *token;
+	int ret;
+
+	/* Retrieve number of streams to configure */
+	token = strsep(&buf, ";");
+	if (!token)
+		return -EINVAL;
+
+	ret = kstrtouint(token, 10, &nstreams);
+	if (ret < 0)
+		return ret;
+
+	if (nstreams > GB_CAMERA_MAX_STREAMS)
+		return -EINVAL;
+
+	token = strsep(&buf, ";");
+	if (!token)
+		return -EINVAL;
+
+	ret = kstrtouint(token, 10, &flags);
+	if (ret < 0)
+		return ret;
+
+	/* For each stream to configure parse width, height and format */
+	streams = kcalloc(nstreams, sizeof(*streams), GFP_KERNEL);
+	if (!streams)
+		return -ENOMEM;
+
+	for (i = 0; i < nstreams; ++i) {
+		struct gb_camera_stream_config *stream = &streams[i];
+
+		/* width */
+		token = strsep(&buf, ";");
+		if (!token) {
+			ret = -EINVAL;
+			goto done;
+		}
+		ret = kstrtouint(token, 10, &stream->width);
+		if (ret < 0)
+			goto done;
+
+		/* height */
+		token = strsep(&buf, ";");
+		if (!token)
+			goto done;
+
+		ret = kstrtouint(token, 10, &stream->height);
+		if (ret < 0)
+			goto done;
+
+		/* Image format code */
+		token = strsep(&buf, ";");
+		if (!token)
+			goto done;
+
+		ret = kstrtouint(token, 16, &stream->format);
+		if (ret < 0)
+			goto done;
+	}
+
+	ret = gb_camera_configure_streams(gcam, &nstreams, &flags, streams,
+					  NULL);
+	if (ret < 0)
+		goto done;
+
+	buffer->length = sprintf(buffer->data, "%u;%u;", nstreams, flags);
+
+	for (i = 0; i < nstreams; ++i) {
+		struct gb_camera_stream_config *stream = &streams[i];
+
+		buffer->length += sprintf(buffer->data + buffer->length,
+					  "%u;%u;%u;%u;%u;%u;%u;",
+					  stream->width, stream->height,
+					  stream->format, stream->vc,
+					  stream->dt[0], stream->dt[1],
+					  stream->max_size);
+	}
+
+	ret = len;
+
+done:
+	kfree(streams);
+	return ret;
+};
+
+static ssize_t gb_camera_debugfs_capture(struct gb_camera *gcam,
+					 char *buf, size_t len)
+{
+	unsigned int request_id;
+	unsigned int streams_mask;
+	unsigned int num_frames;
+	char *token;
+	int ret;
+
+	/* Request id */
+	token = strsep(&buf, ";");
+	if (!token)
+		return -EINVAL;
+	ret = kstrtouint(token, 10, &request_id);
+	if (ret < 0)
+		return ret;
+
+	/* Stream mask */
+	token = strsep(&buf, ";");
+	if (!token)
+		return -EINVAL;
+	ret = kstrtouint(token, 16, &streams_mask);
+	if (ret < 0)
+		return ret;
+
+	/* number of frames */
+	token = strsep(&buf, ";");
+	if (!token)
+		return -EINVAL;
+	ret = kstrtouint(token, 10, &num_frames);
+	if (ret < 0)
+		return ret;
+
+	ret = gb_camera_capture(gcam, request_id, streams_mask, num_frames, 0,
+				NULL);
+	if (ret < 0)
+		return ret;
+
+	return len;
+}
+
+static ssize_t gb_camera_debugfs_flush(struct gb_camera *gcam,
+				       char *buf, size_t len)
+{
+	struct gb_camera_debugfs_buffer *buffer =
+		&gcam->debugfs.buffers[GB_CAMERA_DEBUGFS_BUFFER_FLUSH];
+	unsigned int req_id;
+	int ret;
+
+	ret = gb_camera_flush(gcam, &req_id);
+	if (ret < 0)
+		return ret;
+
+	buffer->length = sprintf(buffer->data, "%u", req_id);
+
+	return len;
+}
+
+struct gb_camera_debugfs_entry {
+	const char *name;
+	unsigned int mask;
+	unsigned int buffer;
+	ssize_t (*execute)(struct gb_camera *gcam, char *buf, size_t len);
+};
+
+static const struct gb_camera_debugfs_entry gb_camera_debugfs_entries[] = {
+	{
+		.name = "capabilities",
+		.mask = S_IFREG | 0444,
+		.buffer = GB_CAMERA_DEBUGFS_BUFFER_CAPABILITIES,
+		.execute = gb_camera_debugfs_capabilities,
+	}, {
+		.name = "configure_streams",
+		.mask = S_IFREG | 0666,
+		.buffer = GB_CAMERA_DEBUGFS_BUFFER_STREAMS,
+		.execute = gb_camera_debugfs_configure_streams,
+	}, {
+		.name = "capture",
+		.mask = S_IFREG | 0666,
+		.buffer = GB_CAMERA_DEBUGFS_BUFFER_CAPTURE,
+		.execute = gb_camera_debugfs_capture,
+	}, {
+		.name = "flush",
+		.mask = S_IFREG | 0666,
+		.buffer = GB_CAMERA_DEBUGFS_BUFFER_FLUSH,
+		.execute = gb_camera_debugfs_flush,
+	},
+};
+
+static ssize_t gb_camera_debugfs_read(struct file *file, char __user *buf,
+				      size_t len, loff_t *offset)
+{
+	const struct gb_camera_debugfs_entry *op = file->private_data;
+	struct gb_camera *gcam = file_inode(file)->i_private;
+	struct gb_camera_debugfs_buffer *buffer;
+	ssize_t ret;
+
+	/* For read-only entries the operation is triggered by a read. */
+	if (!(op->mask & 0222)) {
+		ret = op->execute(gcam, NULL, 0);
+		if (ret < 0)
+			return ret;
+	}
+
+	buffer = &gcam->debugfs.buffers[op->buffer];
+
+	return simple_read_from_buffer(buf, len, offset, buffer->data,
+				       buffer->length);
+}
+
+static ssize_t gb_camera_debugfs_write(struct file *file,
+				       const char __user *buf, size_t len,
+				       loff_t *offset)
+{
+	const struct gb_camera_debugfs_entry *op = file->private_data;
+	struct gb_camera *gcam = file_inode(file)->i_private;
+	ssize_t ret;
+	char *kbuf;
+
+	if (len > 1024)
+		return -EINVAL;
+
+	kbuf = memdup_user_nul(buf, len);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	ret = op->execute(gcam, kbuf, len);
+
+done:
+	kfree(kbuf);
+	return ret;
+}
+
+static int gb_camera_debugfs_open(struct inode *inode, struct file *file)
+{
+	file->private_data = debugfs_get_aux(file);
+	return 0;
+}
+
+static const struct file_operations gb_camera_debugfs_ops = {
+	.open = gb_camera_debugfs_open,
+	.read = gb_camera_debugfs_read,
+	.write = gb_camera_debugfs_write,
+};
+
+static int gb_camera_debugfs_init(struct gb_camera *gcam)
+{
+	struct gb_connection *connection = gcam->connection;
+	char dirname[27];
+	unsigned int i;
+
+	/*
+	 * Create root debugfs entry and a file entry for each camera operation.
+	 */
+	snprintf(dirname, 27, "camera-%u.%u", connection->intf->interface_id,
+		 gcam->bundle->id);
+
+	gcam->debugfs.root = debugfs_create_dir(dirname, gb_debugfs_get());
+
+	gcam->debugfs.buffers =
+		vmalloc(array_size(GB_CAMERA_DEBUGFS_BUFFER_MAX,
+				   sizeof(*gcam->debugfs.buffers)));
+	if (!gcam->debugfs.buffers)
+		return -ENOMEM;
+
+	for (i = 0; i < ARRAY_SIZE(gb_camera_debugfs_entries); ++i) {
+		const struct gb_camera_debugfs_entry *entry =
+			&gb_camera_debugfs_entries[i];
+
+		gcam->debugfs.buffers[i].length = 0;
+
+		debugfs_create_file_aux(entry->name, entry->mask,
+					gcam->debugfs.root, gcam, entry,
+					&gb_camera_debugfs_ops);
+	}
+
+	return 0;
+}
+
+static void gb_camera_debugfs_cleanup(struct gb_camera *gcam)
+{
+	debugfs_remove_recursive(gcam->debugfs.root);
+
+	vfree(gcam->debugfs.buffers);
+}
+
+/* -----------------------------------------------------------------------------
+ * Init & Cleanup
+ */
+
+static void gb_camera_cleanup(struct gb_camera *gcam)
+{
+	gb_camera_debugfs_cleanup(gcam);
+
+	mutex_lock(&gcam->mutex);
+	if (gcam->data_connection) {
+		gb_connection_disable(gcam->data_connection);
+		gb_connection_destroy(gcam->data_connection);
+		gcam->data_connection = NULL;
+	}
+
+	if (gcam->connection) {
+		gb_connection_disable(gcam->connection);
+		gb_connection_destroy(gcam->connection);
+		gcam->connection = NULL;
+	}
+	mutex_unlock(&gcam->mutex);
+}
+
+static void gb_camera_release_module(struct kref *ref)
+{
+	struct gb_camera_module *cam_mod =
+		container_of(ref, struct gb_camera_module, refcount);
+	kfree(cam_mod->priv);
+}
+
+static int gb_camera_probe(struct gb_bundle *bundle,
+			   const struct greybus_bundle_id *id)
+{
+	struct gb_connection *conn;
+	struct gb_camera *gcam;
+	u16 mgmt_cport_id = 0;
+	u16 data_cport_id = 0;
+	unsigned int i;
+	int ret;
+
+	/*
+	 * The camera bundle must contain exactly two CPorts, one for the
+	 * camera management protocol and one for the camera data protocol.
+	 */
+	if (bundle->num_cports != 2)
+		return -ENODEV;
+
+	for (i = 0; i < bundle->num_cports; ++i) {
+		struct greybus_descriptor_cport *desc = &bundle->cport_desc[i];
+
+		switch (desc->protocol_id) {
+		case GREYBUS_PROTOCOL_CAMERA_MGMT:
+			mgmt_cport_id = le16_to_cpu(desc->id);
+			break;
+		case GREYBUS_PROTOCOL_CAMERA_DATA:
+			data_cport_id = le16_to_cpu(desc->id);
+			break;
+		default:
+			return -ENODEV;
+		}
+	}
+
+	if (!mgmt_cport_id || !data_cport_id)
+		return -ENODEV;
+
+	gcam = kzalloc(sizeof(*gcam), GFP_KERNEL);
+	if (!gcam)
+		return -ENOMEM;
+
+	mutex_init(&gcam->mutex);
+
+	gcam->bundle = bundle;
+	gcam->state = GB_CAMERA_STATE_UNCONFIGURED;
+	gcam->data_cport_id = data_cport_id;
+
+	conn = gb_connection_create(bundle, mgmt_cport_id,
+				    gb_camera_request_handler);
+	if (IS_ERR(conn)) {
+		ret = PTR_ERR(conn);
+		goto error;
+	}
+
+	gcam->connection = conn;
+	gb_connection_set_data(conn, gcam);
+
+	ret = gb_connection_enable(conn);
+	if (ret)
+		goto error;
+
+	ret = gb_camera_debugfs_init(gcam);
+	if (ret < 0)
+		goto error;
+
+	gcam->module.priv = gcam;
+	gcam->module.ops = &gb_cam_ops;
+	gcam->module.interface_id = gcam->connection->intf->interface_id;
+	gcam->module.release = gb_camera_release_module;
+	ret = gb_camera_register(&gcam->module);
+	if (ret < 0)
+		goto error;
+
+	greybus_set_drvdata(bundle, gcam);
+
+	gb_pm_runtime_put_autosuspend(gcam->bundle);
+
+	return 0;
+
+error:
+	gb_camera_cleanup(gcam);
+	kfree(gcam);
+	return ret;
+}
+
+static void gb_camera_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_camera *gcam = greybus_get_drvdata(bundle);
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		gb_pm_runtime_get_noresume(bundle);
+
+	gb_camera_cleanup(gcam);
+	gb_camera_unregister(&gcam->module);
+}
+
+static const struct greybus_bundle_id gb_camera_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_CAMERA) },
+	{ },
+};
+
+#ifdef CONFIG_PM
+static int gb_camera_suspend(struct device *dev)
+{
+	struct gb_bundle *bundle = to_gb_bundle(dev);
+	struct gb_camera *gcam = greybus_get_drvdata(bundle);
+
+	if (gcam->data_connection)
+		gb_connection_disable(gcam->data_connection);
+
+	gb_connection_disable(gcam->connection);
+
+	return 0;
+}
+
+static int gb_camera_resume(struct device *dev)
+{
+	struct gb_bundle *bundle = to_gb_bundle(dev);
+	struct gb_camera *gcam = greybus_get_drvdata(bundle);
+	int ret;
+
+	ret = gb_connection_enable(gcam->connection);
+	if (ret) {
+		dev_err(&gcam->bundle->dev, "failed to enable connection: %d\n", ret);
+		return ret;
+	}
+
+	if (gcam->data_connection) {
+		ret = gb_connection_enable(gcam->data_connection);
+		if (ret) {
+			dev_err(&gcam->bundle->dev,
+				"failed to enable data connection: %d\n", ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gb_camera_pm_ops = {
+	SET_RUNTIME_PM_OPS(gb_camera_suspend, gb_camera_resume, NULL)
+};
+
+static struct greybus_driver gb_camera_driver = {
+	.name		= "camera",
+	.probe		= gb_camera_probe,
+	.disconnect	= gb_camera_disconnect,
+	.id_table	= gb_camera_id_table,
+	.driver.pm	= &gb_camera_pm_ops,
+};
+
+module_greybus_driver(gb_camera_driver);
+
+MODULE_DESCRIPTION("Greybus Camera protocol driver.");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/firmware.h b/drivers/staging/greybus/firmware.h
new file mode 100644
index 000000000000..5d2564462ffc
--- /dev/null
+++ b/drivers/staging/greybus/firmware.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Firmware Management Header
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+
+#ifndef __FIRMWARE_H
+#define __FIRMWARE_H
+
+#include <linux/greybus.h>
+
+#define FW_NAME_PREFIX	"gmp_"
+
+/*
+ * Length of the string in format: "FW_NAME_PREFIX""%08x_%08x_%08x_%08x_%s.tftf"
+ *                                  (3 + 1 + 4 * (8 + 1) + 10 + 1 + 4 + 1)
+ */
+#define FW_NAME_SIZE		56
+
+/* Firmware Management Protocol specific functions */
+int fw_mgmt_init(void);
+void fw_mgmt_exit(void);
+struct gb_connection *to_fw_mgmt_connection(struct device *dev);
+int gb_fw_mgmt_request_handler(struct gb_operation *op);
+int gb_fw_mgmt_connection_init(struct gb_connection *connection);
+void gb_fw_mgmt_connection_exit(struct gb_connection *connection);
+
+/* Firmware Download Protocol specific functions */
+int gb_fw_download_request_handler(struct gb_operation *op);
+int gb_fw_download_connection_init(struct gb_connection *connection);
+void gb_fw_download_connection_exit(struct gb_connection *connection);
+
+/* CAP Protocol specific functions */
+int cap_init(void);
+void cap_exit(void);
+int gb_cap_connection_init(struct gb_connection *connection);
+void gb_cap_connection_exit(struct gb_connection *connection);
+
+#endif /* __FIRMWARE_H */
diff --git a/drivers/staging/greybus/fw-core.c b/drivers/staging/greybus/fw-core.c
new file mode 100644
index 000000000000..0fb15a60412f
--- /dev/null
+++ b/drivers/staging/greybus/fw-core.c
@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Firmware Core Bundle Driver.
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/firmware.h>
+#include <linux/greybus.h>
+#include "firmware.h"
+#include "spilib.h"
+
+struct gb_fw_core {
+	struct gb_connection	*download_connection;
+	struct gb_connection	*mgmt_connection;
+	struct gb_connection	*spi_connection;
+	struct gb_connection	*cap_connection;
+};
+
+static struct spilib_ops *spilib_ops;
+
+struct gb_connection *to_fw_mgmt_connection(struct device *dev)
+{
+	struct gb_fw_core *fw_core = dev_get_drvdata(dev);
+
+	return fw_core->mgmt_connection;
+}
+
+static int gb_fw_spi_connection_init(struct gb_connection *connection)
+{
+	int ret;
+
+	if (!connection)
+		return 0;
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		return ret;
+
+	ret = gb_spilib_master_init(connection, &connection->bundle->dev,
+				    spilib_ops);
+	if (ret) {
+		gb_connection_disable(connection);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void gb_fw_spi_connection_exit(struct gb_connection *connection)
+{
+	if (!connection)
+		return;
+
+	gb_spilib_master_exit(connection);
+	gb_connection_disable(connection);
+}
+
+static int gb_fw_core_probe(struct gb_bundle *bundle,
+			    const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_fw_core *fw_core;
+	int ret, i;
+	u16 cport_id;
+	u8 protocol_id;
+
+	fw_core = kzalloc(sizeof(*fw_core), GFP_KERNEL);
+	if (!fw_core)
+		return -ENOMEM;
+
+	/* Parse CPorts and create connections */
+	for (i = 0; i < bundle->num_cports; i++) {
+		cport_desc = &bundle->cport_desc[i];
+		cport_id = le16_to_cpu(cport_desc->id);
+		protocol_id = cport_desc->protocol_id;
+
+		switch (protocol_id) {
+		case GREYBUS_PROTOCOL_FW_MANAGEMENT:
+			/* Disallow multiple Firmware Management CPorts */
+			if (fw_core->mgmt_connection) {
+				dev_err(&bundle->dev,
+					"multiple management CPorts found\n");
+				ret = -EINVAL;
+				goto err_destroy_connections;
+			}
+
+			connection = gb_connection_create(bundle, cport_id,
+							  gb_fw_mgmt_request_handler);
+			if (IS_ERR(connection)) {
+				ret = PTR_ERR(connection);
+				dev_err(&bundle->dev,
+					"failed to create management connection (%d)\n",
+					ret);
+				goto err_destroy_connections;
+			}
+
+			fw_core->mgmt_connection = connection;
+			break;
+		case GREYBUS_PROTOCOL_FW_DOWNLOAD:
+			/* Disallow multiple Firmware Download CPorts */
+			if (fw_core->download_connection) {
+				dev_err(&bundle->dev,
+					"multiple download CPorts found\n");
+				ret = -EINVAL;
+				goto err_destroy_connections;
+			}
+
+			connection = gb_connection_create(bundle, cport_id,
+							  gb_fw_download_request_handler);
+			if (IS_ERR(connection)) {
+				dev_err(&bundle->dev, "failed to create download connection (%ld)\n",
+					PTR_ERR(connection));
+			} else {
+				fw_core->download_connection = connection;
+			}
+
+			break;
+		case GREYBUS_PROTOCOL_SPI:
+			/* Disallow multiple SPI CPorts */
+			if (fw_core->spi_connection) {
+				dev_err(&bundle->dev,
+					"multiple SPI CPorts found\n");
+				ret = -EINVAL;
+				goto err_destroy_connections;
+			}
+
+			connection = gb_connection_create(bundle, cport_id,
+							  NULL);
+			if (IS_ERR(connection)) {
+				dev_err(&bundle->dev, "failed to create SPI connection (%ld)\n",
+					PTR_ERR(connection));
+			} else {
+				fw_core->spi_connection = connection;
+			}
+
+			break;
+		case GREYBUS_PROTOCOL_AUTHENTICATION:
+			/* Disallow multiple CAP CPorts */
+			if (fw_core->cap_connection) {
+				dev_err(&bundle->dev, "multiple Authentication CPorts found\n");
+				ret = -EINVAL;
+				goto err_destroy_connections;
+			}
+
+			connection = gb_connection_create(bundle, cport_id,
+							  NULL);
+			if (IS_ERR(connection)) {
+				dev_err(&bundle->dev, "failed to create Authentication connection (%ld)\n",
+					PTR_ERR(connection));
+			} else {
+				fw_core->cap_connection = connection;
+			}
+
+			break;
+		default:
+			dev_err(&bundle->dev, "invalid protocol id (0x%02x)\n",
+				protocol_id);
+			ret = -EINVAL;
+			goto err_destroy_connections;
+		}
+	}
+
+	/* Firmware Management connection is mandatory */
+	if (!fw_core->mgmt_connection) {
+		dev_err(&bundle->dev, "missing management connection\n");
+		ret = -ENODEV;
+		goto err_destroy_connections;
+	}
+
+	ret = gb_fw_download_connection_init(fw_core->download_connection);
+	if (ret) {
+		/* We may still be able to work with the Interface */
+		dev_err(&bundle->dev, "failed to initialize firmware download connection, disable it (%d)\n",
+			ret);
+		gb_connection_destroy(fw_core->download_connection);
+		fw_core->download_connection = NULL;
+	}
+
+	ret = gb_fw_spi_connection_init(fw_core->spi_connection);
+	if (ret) {
+		/* We may still be able to work with the Interface */
+		dev_err(&bundle->dev, "failed to initialize SPI connection, disable it (%d)\n",
+			ret);
+		gb_connection_destroy(fw_core->spi_connection);
+		fw_core->spi_connection = NULL;
+	}
+
+	ret = gb_cap_connection_init(fw_core->cap_connection);
+	if (ret) {
+		/* We may still be able to work with the Interface */
+		dev_err(&bundle->dev, "failed to initialize CAP connection, disable it (%d)\n",
+			ret);
+		gb_connection_destroy(fw_core->cap_connection);
+		fw_core->cap_connection = NULL;
+	}
+
+	ret = gb_fw_mgmt_connection_init(fw_core->mgmt_connection);
+	if (ret) {
+		/* We may still be able to work with the Interface */
+		dev_err(&bundle->dev, "failed to initialize firmware management connection, disable it (%d)\n",
+			ret);
+		goto err_exit_connections;
+	}
+
+	greybus_set_drvdata(bundle, fw_core);
+
+	/* FIXME: Remove this after S2 Loader gets runtime PM support */
+	if (!(bundle->intf->quirks & GB_INTERFACE_QUIRK_NO_PM))
+		gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+
+err_exit_connections:
+	gb_cap_connection_exit(fw_core->cap_connection);
+	gb_fw_spi_connection_exit(fw_core->spi_connection);
+	gb_fw_download_connection_exit(fw_core->download_connection);
+err_destroy_connections:
+	gb_connection_destroy(fw_core->mgmt_connection);
+	gb_connection_destroy(fw_core->cap_connection);
+	gb_connection_destroy(fw_core->spi_connection);
+	gb_connection_destroy(fw_core->download_connection);
+	kfree(fw_core);
+
+	return ret;
+}
+
+static void gb_fw_core_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_fw_core *fw_core = greybus_get_drvdata(bundle);
+	int ret;
+
+	/* FIXME: Remove this after S2 Loader gets runtime PM support */
+	if (!(bundle->intf->quirks & GB_INTERFACE_QUIRK_NO_PM)) {
+		ret = gb_pm_runtime_get_sync(bundle);
+		if (ret)
+			gb_pm_runtime_get_noresume(bundle);
+	}
+
+	gb_fw_mgmt_connection_exit(fw_core->mgmt_connection);
+	gb_cap_connection_exit(fw_core->cap_connection);
+	gb_fw_spi_connection_exit(fw_core->spi_connection);
+	gb_fw_download_connection_exit(fw_core->download_connection);
+
+	gb_connection_destroy(fw_core->mgmt_connection);
+	gb_connection_destroy(fw_core->cap_connection);
+	gb_connection_destroy(fw_core->spi_connection);
+	gb_connection_destroy(fw_core->download_connection);
+
+	kfree(fw_core);
+}
+
+static const struct greybus_bundle_id gb_fw_core_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_FW_MANAGEMENT) },
+	{ }
+};
+
+static struct greybus_driver gb_fw_core_driver = {
+	.name		= "gb-firmware",
+	.probe		= gb_fw_core_probe,
+	.disconnect	= gb_fw_core_disconnect,
+	.id_table	= gb_fw_core_id_table,
+};
+
+static int fw_core_init(void)
+{
+	int ret;
+
+	ret = fw_mgmt_init();
+	if (ret) {
+		pr_err("Failed to initialize fw-mgmt core (%d)\n", ret);
+		return ret;
+	}
+
+	ret = cap_init();
+	if (ret) {
+		pr_err("Failed to initialize component authentication core (%d)\n",
+		       ret);
+		goto fw_mgmt_exit;
+	}
+
+	ret = greybus_register(&gb_fw_core_driver);
+	if (ret)
+		goto cap_exit;
+
+	return 0;
+
+cap_exit:
+	cap_exit();
+fw_mgmt_exit:
+	fw_mgmt_exit();
+
+	return ret;
+}
+module_init(fw_core_init);
+
+static void __exit fw_core_exit(void)
+{
+	greybus_deregister(&gb_fw_core_driver);
+	cap_exit();
+	fw_mgmt_exit();
+}
+module_exit(fw_core_exit);
+
+MODULE_ALIAS("greybus:firmware");
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
+MODULE_DESCRIPTION("Greybus Firmware Bundle Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/fw-download.c b/drivers/staging/greybus/fw-download.c
new file mode 100644
index 000000000000..9a09bd3af79b
--- /dev/null
+++ b/drivers/staging/greybus/fw-download.c
@@ -0,0 +1,465 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Firmware Download Protocol Driver.
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+
+#include <linux/firmware.h>
+#include <linux/jiffies.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/greybus.h>
+#include "firmware.h"
+
+/* Estimated minimum buffer size, actual size can be smaller than this */
+#define MIN_FETCH_SIZE		512
+/* Timeout, in jiffies, within which fetch or release firmware must be called */
+#define NEXT_REQ_TIMEOUT_J	msecs_to_jiffies(1000)
+
+struct fw_request {
+	u8			firmware_id;
+	bool			disabled;
+	bool			timedout;
+	char			name[FW_NAME_SIZE];
+	const struct firmware	*fw;
+	struct list_head	node;
+
+	struct delayed_work	dwork;
+	/* Timeout, in jiffies, within which the firmware shall download */
+	unsigned long		release_timeout_j;
+	struct kref		kref;
+	struct fw_download	*fw_download;
+};
+
+struct fw_download {
+	struct device		*parent;
+	struct gb_connection	*connection;
+	struct list_head	fw_requests;
+	struct ida		id_map;
+	struct mutex		mutex;
+};
+
+static void fw_req_release(struct kref *kref)
+{
+	struct fw_request *fw_req = container_of(kref, struct fw_request, kref);
+
+	dev_dbg(fw_req->fw_download->parent, "firmware %s released\n",
+		fw_req->name);
+
+	release_firmware(fw_req->fw);
+
+	/*
+	 * The request timed out and the module may send a fetch-fw or
+	 * release-fw request later. Lets block the id we allocated for this
+	 * request, so that the AP doesn't refer to a later fw-request (with
+	 * same firmware_id) for the old timedout fw-request.
+	 *
+	 * NOTE:
+	 *
+	 * This also means that after 255 timeouts we will fail to service new
+	 * firmware downloads. But what else can we do in that case anyway? Lets
+	 * just hope that it never happens.
+	 */
+	if (!fw_req->timedout)
+		ida_free(&fw_req->fw_download->id_map, fw_req->firmware_id);
+
+	kfree(fw_req);
+}
+
+/*
+ * Incoming requests are serialized for a connection, and the only race possible
+ * is between the timeout handler freeing this and an incoming request.
+ *
+ * The operations on the fw-request list are protected by the mutex and
+ * get_fw_req() increments the reference count before returning a fw_req pointer
+ * to the users.
+ *
+ * free_firmware() also takes the mutex while removing an entry from the list,
+ * it guarantees that every user of fw_req has taken a kref-reference by now and
+ * we wouldn't have any new users.
+ *
+ * Once the last user drops the reference, the fw_req structure is freed.
+ */
+static void put_fw_req(struct fw_request *fw_req)
+{
+	kref_put(&fw_req->kref, fw_req_release);
+}
+
+/* Caller must call put_fw_req() after using struct fw_request */
+static struct fw_request *get_fw_req(struct fw_download *fw_download,
+				     u8 firmware_id)
+{
+	struct fw_request *fw_req;
+
+	mutex_lock(&fw_download->mutex);
+
+	list_for_each_entry(fw_req, &fw_download->fw_requests, node) {
+		if (fw_req->firmware_id == firmware_id) {
+			kref_get(&fw_req->kref);
+			goto unlock;
+		}
+	}
+
+	fw_req = NULL;
+
+unlock:
+	mutex_unlock(&fw_download->mutex);
+
+	return fw_req;
+}
+
+static void free_firmware(struct fw_download *fw_download,
+			  struct fw_request *fw_req)
+{
+	/* Already disabled from timeout handlers */
+	if (fw_req->disabled)
+		return;
+
+	mutex_lock(&fw_download->mutex);
+	list_del(&fw_req->node);
+	mutex_unlock(&fw_download->mutex);
+
+	fw_req->disabled = true;
+	put_fw_req(fw_req);
+}
+
+static void fw_request_timedout(struct work_struct *work)
+{
+	struct delayed_work *dwork = to_delayed_work(work);
+	struct fw_request *fw_req = container_of(dwork,
+						 struct fw_request, dwork);
+	struct fw_download *fw_download = fw_req->fw_download;
+
+	dev_err(fw_download->parent,
+		"Timed out waiting for fetch / release firmware requests: %u\n",
+		fw_req->firmware_id);
+
+	fw_req->timedout = true;
+	free_firmware(fw_download, fw_req);
+}
+
+static int exceeds_release_timeout(struct fw_request *fw_req)
+{
+	struct fw_download *fw_download = fw_req->fw_download;
+
+	if (time_before(jiffies, fw_req->release_timeout_j))
+		return 0;
+
+	dev_err(fw_download->parent,
+		"Firmware download didn't finish in time, abort: %d\n",
+		fw_req->firmware_id);
+
+	fw_req->timedout = true;
+	free_firmware(fw_download, fw_req);
+
+	return -ETIMEDOUT;
+}
+
+/* This returns path of the firmware blob on the disk */
+static struct fw_request *find_firmware(struct fw_download *fw_download,
+					const char *tag)
+{
+	struct gb_interface *intf = fw_download->connection->bundle->intf;
+	struct fw_request *fw_req;
+	int ret, req_count;
+
+	fw_req = kzalloc(sizeof(*fw_req), GFP_KERNEL);
+	if (!fw_req)
+		return ERR_PTR(-ENOMEM);
+
+	/* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
+	ret = ida_alloc_range(&fw_download->id_map, 1, 255, GFP_KERNEL);
+	if (ret < 0) {
+		dev_err(fw_download->parent,
+			"failed to allocate firmware id (%d)\n", ret);
+		goto err_free_req;
+	}
+	fw_req->firmware_id = ret;
+
+	snprintf(fw_req->name, sizeof(fw_req->name),
+		 FW_NAME_PREFIX "%08x_%08x_%08x_%08x_%s.tftf",
+		 intf->ddbl1_manufacturer_id, intf->ddbl1_product_id,
+		 intf->vendor_id, intf->product_id, tag);
+
+	dev_info(fw_download->parent, "Requested firmware package '%s'\n",
+		 fw_req->name);
+
+	ret = request_firmware(&fw_req->fw, fw_req->name, fw_download->parent);
+	if (ret) {
+		dev_err(fw_download->parent,
+			"firmware request failed for %s (%d)\n", fw_req->name,
+			ret);
+		goto err_free_id;
+	}
+
+	fw_req->fw_download = fw_download;
+	kref_init(&fw_req->kref);
+
+	mutex_lock(&fw_download->mutex);
+	list_add(&fw_req->node, &fw_download->fw_requests);
+	mutex_unlock(&fw_download->mutex);
+
+	/* Timeout, in jiffies, within which firmware should get loaded */
+	req_count = DIV_ROUND_UP(fw_req->fw->size, MIN_FETCH_SIZE);
+	fw_req->release_timeout_j = jiffies + req_count * NEXT_REQ_TIMEOUT_J;
+
+	INIT_DELAYED_WORK(&fw_req->dwork, fw_request_timedout);
+	schedule_delayed_work(&fw_req->dwork, NEXT_REQ_TIMEOUT_J);
+
+	return fw_req;
+
+err_free_id:
+	ida_free(&fw_download->id_map, fw_req->firmware_id);
+err_free_req:
+	kfree(fw_req);
+
+	return ERR_PTR(ret);
+}
+
+static int fw_download_find_firmware(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct fw_download *fw_download = gb_connection_get_data(connection);
+	struct gb_fw_download_find_firmware_request *request;
+	struct gb_fw_download_find_firmware_response *response;
+	struct fw_request *fw_req;
+	const char *tag;
+
+	if (op->request->payload_size != sizeof(*request)) {
+		dev_err(fw_download->parent,
+			"illegal size of find firmware request (%zu != %zu)\n",
+			op->request->payload_size, sizeof(*request));
+		return -EINVAL;
+	}
+
+	request = op->request->payload;
+	tag = (const char *)request->firmware_tag;
+
+	/* firmware_tag must be null-terminated */
+	if (strnlen(tag, GB_FIRMWARE_TAG_MAX_SIZE) ==
+	    GB_FIRMWARE_TAG_MAX_SIZE) {
+		dev_err(fw_download->parent,
+			"firmware-tag is not null-terminated\n");
+		return -EINVAL;
+	}
+
+	fw_req = find_firmware(fw_download, tag);
+	if (IS_ERR(fw_req))
+		return PTR_ERR(fw_req);
+
+	if (!gb_operation_response_alloc(op, sizeof(*response), GFP_KERNEL)) {
+		dev_err(fw_download->parent, "error allocating response\n");
+		free_firmware(fw_download, fw_req);
+		return -ENOMEM;
+	}
+
+	response = op->response->payload;
+	response->firmware_id = fw_req->firmware_id;
+	response->size = cpu_to_le32(fw_req->fw->size);
+
+	dev_dbg(fw_download->parent,
+		"firmware size is %zu bytes\n", fw_req->fw->size);
+
+	return 0;
+}
+
+static int fw_download_fetch_firmware(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct fw_download *fw_download = gb_connection_get_data(connection);
+	struct gb_fw_download_fetch_firmware_request *request;
+	struct fw_request *fw_req;
+	const struct firmware *fw;
+	unsigned int offset, size;
+	u8 firmware_id;
+	u8 *response;
+	int ret = 0;
+
+	if (op->request->payload_size != sizeof(*request)) {
+		dev_err(fw_download->parent,
+			"Illegal size of fetch firmware request (%zu %zu)\n",
+			op->request->payload_size, sizeof(*request));
+		return -EINVAL;
+	}
+
+	request = op->request->payload;
+	offset = le32_to_cpu(request->offset);
+	size = le32_to_cpu(request->size);
+	firmware_id = request->firmware_id;
+
+	fw_req = get_fw_req(fw_download, firmware_id);
+	if (!fw_req) {
+		dev_err(fw_download->parent,
+			"firmware not available for id: %02u\n", firmware_id);
+		return -EINVAL;
+	}
+
+	/* Make sure work handler isn't running in parallel */
+	cancel_delayed_work_sync(&fw_req->dwork);
+
+	/* We timed-out before reaching here ? */
+	if (fw_req->disabled) {
+		ret = -ETIMEDOUT;
+		goto put_fw;
+	}
+
+	/*
+	 * Firmware download must finish within a limited time interval. If it
+	 * doesn't, then we might have a buggy Module on the other side. Abort
+	 * download.
+	 */
+	ret = exceeds_release_timeout(fw_req);
+	if (ret)
+		goto put_fw;
+
+	fw = fw_req->fw;
+
+	if (offset >= fw->size || size > fw->size - offset) {
+		dev_err(fw_download->parent,
+			"bad fetch firmware request (offs = %u, size = %u)\n",
+			offset, size);
+		ret = -EINVAL;
+		goto put_fw;
+	}
+
+	/* gb_fw_download_fetch_firmware_response contains only a byte array */
+	if (!gb_operation_response_alloc(op, size, GFP_KERNEL)) {
+		dev_err(fw_download->parent,
+			"error allocating fetch firmware response\n");
+		ret = -ENOMEM;
+		goto put_fw;
+	}
+
+	response = op->response->payload;
+	memcpy(response, fw->data + offset, size);
+
+	dev_dbg(fw_download->parent,
+		"responding with firmware (offs = %u, size = %u)\n", offset,
+		size);
+
+	/* Refresh timeout */
+	schedule_delayed_work(&fw_req->dwork, NEXT_REQ_TIMEOUT_J);
+
+put_fw:
+	put_fw_req(fw_req);
+
+	return ret;
+}
+
+static int fw_download_release_firmware(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct fw_download *fw_download = gb_connection_get_data(connection);
+	struct gb_fw_download_release_firmware_request *request;
+	struct fw_request *fw_req;
+	u8 firmware_id;
+
+	if (op->request->payload_size != sizeof(*request)) {
+		dev_err(fw_download->parent,
+			"Illegal size of release firmware request (%zu %zu)\n",
+			op->request->payload_size, sizeof(*request));
+		return -EINVAL;
+	}
+
+	request = op->request->payload;
+	firmware_id = request->firmware_id;
+
+	fw_req = get_fw_req(fw_download, firmware_id);
+	if (!fw_req) {
+		dev_err(fw_download->parent,
+			"firmware not available for id: %02u\n", firmware_id);
+		return -EINVAL;
+	}
+
+	cancel_delayed_work_sync(&fw_req->dwork);
+
+	free_firmware(fw_download, fw_req);
+	put_fw_req(fw_req);
+
+	dev_dbg(fw_download->parent, "release firmware\n");
+
+	return 0;
+}
+
+int gb_fw_download_request_handler(struct gb_operation *op)
+{
+	u8 type = op->type;
+
+	switch (type) {
+	case GB_FW_DOWNLOAD_TYPE_FIND_FIRMWARE:
+		return fw_download_find_firmware(op);
+	case GB_FW_DOWNLOAD_TYPE_FETCH_FIRMWARE:
+		return fw_download_fetch_firmware(op);
+	case GB_FW_DOWNLOAD_TYPE_RELEASE_FIRMWARE:
+		return fw_download_release_firmware(op);
+	default:
+		dev_err(&op->connection->bundle->dev,
+			"unsupported request: %u\n", type);
+		return -EINVAL;
+	}
+}
+
+int gb_fw_download_connection_init(struct gb_connection *connection)
+{
+	struct fw_download *fw_download;
+	int ret;
+
+	if (!connection)
+		return 0;
+
+	fw_download = kzalloc(sizeof(*fw_download), GFP_KERNEL);
+	if (!fw_download)
+		return -ENOMEM;
+
+	fw_download->parent = &connection->bundle->dev;
+	INIT_LIST_HEAD(&fw_download->fw_requests);
+	ida_init(&fw_download->id_map);
+	gb_connection_set_data(connection, fw_download);
+	fw_download->connection = connection;
+	mutex_init(&fw_download->mutex);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto err_destroy_id_map;
+
+	return 0;
+
+err_destroy_id_map:
+	ida_destroy(&fw_download->id_map);
+	kfree(fw_download);
+
+	return ret;
+}
+
+void gb_fw_download_connection_exit(struct gb_connection *connection)
+{
+	struct fw_download *fw_download;
+	struct fw_request *fw_req, *tmp;
+
+	if (!connection)
+		return;
+
+	fw_download = gb_connection_get_data(connection);
+	gb_connection_disable(fw_download->connection);
+
+	/*
+	 * Make sure we have a reference to the pending requests, before they
+	 * are freed from the timeout handler.
+	 */
+	mutex_lock(&fw_download->mutex);
+	list_for_each_entry(fw_req, &fw_download->fw_requests, node)
+		kref_get(&fw_req->kref);
+	mutex_unlock(&fw_download->mutex);
+
+	/* Release pending firmware packages */
+	list_for_each_entry_safe(fw_req, tmp, &fw_download->fw_requests, node) {
+		cancel_delayed_work_sync(&fw_req->dwork);
+		free_firmware(fw_download, fw_req);
+		put_fw_req(fw_req);
+	}
+
+	ida_destroy(&fw_download->id_map);
+	kfree(fw_download);
+}
diff --git a/drivers/staging/greybus/fw-management.c b/drivers/staging/greybus/fw-management.c
new file mode 100644
index 000000000000..152949c23d65
--- /dev/null
+++ b/drivers/staging/greybus/fw-management.c
@@ -0,0 +1,705 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Firmware Management Protocol Driver.
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+
+#include <linux/cdev.h>
+#include <linux/completion.h>
+#include <linux/firmware.h>
+#include <linux/fs.h>
+#include <linux/idr.h>
+#include <linux/ioctl.h>
+#include <linux/uaccess.h>
+#include <linux/greybus.h>
+
+#include "firmware.h"
+#include "greybus_firmware.h"
+
+#define FW_MGMT_TIMEOUT_MS		1000
+
+struct fw_mgmt {
+	struct device		*parent;
+	struct gb_connection	*connection;
+	struct kref		kref;
+	struct list_head	node;
+
+	/* Common id-map for interface and backend firmware requests */
+	struct ida		id_map;
+	struct mutex		mutex;
+	struct completion	completion;
+	struct cdev		cdev;
+	struct device		*class_device;
+	dev_t			dev_num;
+	unsigned int		timeout_jiffies;
+	bool			disabled; /* connection getting disabled */
+
+	/* Interface Firmware specific fields */
+	bool			mode_switch_started;
+	bool			intf_fw_loaded;
+	u8			intf_fw_request_id;
+	u8			intf_fw_status;
+	u16			intf_fw_major;
+	u16			intf_fw_minor;
+
+	/* Backend Firmware specific fields */
+	u8			backend_fw_request_id;
+	u8			backend_fw_status;
+};
+
+/*
+ * Number of minor devices this driver supports.
+ * There will be exactly one required per Interface.
+ */
+#define NUM_MINORS		U8_MAX
+
+static const struct class fw_mgmt_class = {
+	.name = "gb_fw_mgmt",
+};
+
+static dev_t fw_mgmt_dev_num;
+static DEFINE_IDA(fw_mgmt_minors_map);
+static LIST_HEAD(fw_mgmt_list);
+static DEFINE_MUTEX(list_mutex);
+
+static void fw_mgmt_kref_release(struct kref *kref)
+{
+	struct fw_mgmt *fw_mgmt = container_of(kref, struct fw_mgmt, kref);
+
+	ida_destroy(&fw_mgmt->id_map);
+	kfree(fw_mgmt);
+}
+
+/*
+ * All users of fw_mgmt take a reference (from within list_mutex lock), before
+ * they get a pointer to play with. And the structure will be freed only after
+ * the last user has put the reference to it.
+ */
+static void put_fw_mgmt(struct fw_mgmt *fw_mgmt)
+{
+	kref_put(&fw_mgmt->kref, fw_mgmt_kref_release);
+}
+
+/* Caller must call put_fw_mgmt() after using struct fw_mgmt */
+static struct fw_mgmt *get_fw_mgmt(struct cdev *cdev)
+{
+	struct fw_mgmt *fw_mgmt;
+
+	mutex_lock(&list_mutex);
+
+	list_for_each_entry(fw_mgmt, &fw_mgmt_list, node) {
+		if (&fw_mgmt->cdev == cdev) {
+			kref_get(&fw_mgmt->kref);
+			goto unlock;
+		}
+	}
+
+	fw_mgmt = NULL;
+
+unlock:
+	mutex_unlock(&list_mutex);
+
+	return fw_mgmt;
+}
+
+static int fw_mgmt_interface_fw_version_operation(struct fw_mgmt *fw_mgmt,
+						  struct fw_mgmt_ioc_get_intf_version *fw_info)
+{
+	struct gb_connection *connection = fw_mgmt->connection;
+	struct gb_fw_mgmt_interface_fw_version_response response;
+	int ret;
+
+	ret = gb_operation_sync(connection,
+				GB_FW_MGMT_TYPE_INTERFACE_FW_VERSION, NULL, 0,
+				&response, sizeof(response));
+	if (ret) {
+		dev_err(fw_mgmt->parent,
+			"failed to get interface firmware version (%d)\n", ret);
+		return ret;
+	}
+
+	fw_info->major = le16_to_cpu(response.major);
+	fw_info->minor = le16_to_cpu(response.minor);
+
+	ret = strscpy_pad(fw_info->firmware_tag, response.firmware_tag);
+	if (ret == -E2BIG)
+		dev_err(fw_mgmt->parent,
+			"fw-version: truncated firmware tag: %s\n",
+			fw_info->firmware_tag);
+
+	return 0;
+}
+
+static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt,
+					       u8 load_method, const char *tag)
+{
+	struct gb_fw_mgmt_load_and_validate_fw_request request;
+	int ret;
+
+	if (load_method != GB_FW_LOAD_METHOD_UNIPRO &&
+	    load_method != GB_FW_LOAD_METHOD_INTERNAL) {
+		dev_err(fw_mgmt->parent,
+			"invalid load-method (%d)\n", load_method);
+		return -EINVAL;
+	}
+
+	request.load_method = load_method;
+
+	ret = strscpy_pad(request.firmware_tag, tag);
+	if (ret == -E2BIG) {
+		dev_err(fw_mgmt->parent,
+			"load-and-validate: truncated firmware tag: %s\n",
+			request.firmware_tag);
+		return -EINVAL;
+	}
+
+	/* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
+	ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL);
+	if (ret < 0) {
+		dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n",
+			ret);
+		return ret;
+	}
+
+	fw_mgmt->intf_fw_request_id = ret;
+	fw_mgmt->intf_fw_loaded = false;
+	request.request_id = ret;
+
+	ret = gb_operation_sync(fw_mgmt->connection,
+				GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW, &request,
+				sizeof(request), NULL, 0);
+	if (ret) {
+		ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id);
+		fw_mgmt->intf_fw_request_id = 0;
+		dev_err(fw_mgmt->parent,
+			"load and validate firmware request failed (%d)\n",
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fw_mgmt_interface_fw_loaded_operation(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct fw_mgmt *fw_mgmt = gb_connection_get_data(connection);
+	struct gb_fw_mgmt_loaded_fw_request *request;
+
+	/* No pending load and validate request ? */
+	if (!fw_mgmt->intf_fw_request_id) {
+		dev_err(fw_mgmt->parent,
+			"unexpected firmware loaded request received\n");
+		return -ENODEV;
+	}
+
+	if (op->request->payload_size != sizeof(*request)) {
+		dev_err(fw_mgmt->parent, "illegal size of firmware loaded request (%zu != %zu)\n",
+			op->request->payload_size, sizeof(*request));
+		return -EINVAL;
+	}
+
+	request = op->request->payload;
+
+	/* Invalid request-id ? */
+	if (request->request_id != fw_mgmt->intf_fw_request_id) {
+		dev_err(fw_mgmt->parent, "invalid request id for firmware loaded request (%02u != %02u)\n",
+			fw_mgmt->intf_fw_request_id, request->request_id);
+		return -ENODEV;
+	}
+
+	ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id);
+	fw_mgmt->intf_fw_request_id = 0;
+	fw_mgmt->intf_fw_status = request->status;
+	fw_mgmt->intf_fw_major = le16_to_cpu(request->major);
+	fw_mgmt->intf_fw_minor = le16_to_cpu(request->minor);
+
+	if (fw_mgmt->intf_fw_status == GB_FW_LOAD_STATUS_FAILED)
+		dev_err(fw_mgmt->parent,
+			"failed to load interface firmware, status:%02x\n",
+			fw_mgmt->intf_fw_status);
+	else if (fw_mgmt->intf_fw_status == GB_FW_LOAD_STATUS_VALIDATION_FAILED)
+		dev_err(fw_mgmt->parent,
+			"failed to validate interface firmware, status:%02x\n",
+			fw_mgmt->intf_fw_status);
+	else
+		fw_mgmt->intf_fw_loaded = true;
+
+	complete(&fw_mgmt->completion);
+
+	return 0;
+}
+
+static int fw_mgmt_backend_fw_version_operation(struct fw_mgmt *fw_mgmt,
+						struct fw_mgmt_ioc_get_backend_version *fw_info)
+{
+	struct gb_connection *connection = fw_mgmt->connection;
+	struct gb_fw_mgmt_backend_fw_version_request request;
+	struct gb_fw_mgmt_backend_fw_version_response response;
+	int ret;
+
+	ret = strscpy_pad(request.firmware_tag, fw_info->firmware_tag);
+	if (ret == -E2BIG) {
+		dev_err(fw_mgmt->parent,
+			"backend-fw-version: truncated firmware tag: %s\n",
+			request.firmware_tag);
+		return -EINVAL;
+	}
+
+	ret = gb_operation_sync(connection,
+				GB_FW_MGMT_TYPE_BACKEND_FW_VERSION, &request,
+				sizeof(request), &response, sizeof(response));
+	if (ret) {
+		dev_err(fw_mgmt->parent, "failed to get version of %s backend firmware (%d)\n",
+			fw_info->firmware_tag, ret);
+		return ret;
+	}
+
+	fw_info->status = response.status;
+
+	/* Reset version as that should be non-zero only for success case */
+	fw_info->major = 0;
+	fw_info->minor = 0;
+
+	switch (fw_info->status) {
+	case GB_FW_BACKEND_VERSION_STATUS_SUCCESS:
+		fw_info->major = le16_to_cpu(response.major);
+		fw_info->minor = le16_to_cpu(response.minor);
+		break;
+	case GB_FW_BACKEND_VERSION_STATUS_NOT_AVAILABLE:
+	case GB_FW_BACKEND_VERSION_STATUS_RETRY:
+		break;
+	case GB_FW_BACKEND_VERSION_STATUS_NOT_SUPPORTED:
+		dev_err(fw_mgmt->parent,
+			"Firmware with tag %s is not supported by Interface\n",
+			fw_info->firmware_tag);
+		break;
+	default:
+		dev_err(fw_mgmt->parent, "Invalid status received: %u\n",
+			fw_info->status);
+	}
+
+	return 0;
+}
+
+static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt,
+					       char *tag)
+{
+	struct gb_fw_mgmt_backend_fw_update_request request;
+	int ret;
+
+	ret = strscpy_pad(request.firmware_tag, tag);
+	if (ret == -E2BIG) {
+		dev_err(fw_mgmt->parent,
+			"backend-fw-update: truncated firmware tag: %s\n",
+			request.firmware_tag);
+		return -EINVAL;
+	}
+
+	/* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
+	ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL);
+	if (ret < 0) {
+		dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n",
+			ret);
+		return ret;
+	}
+
+	fw_mgmt->backend_fw_request_id = ret;
+	request.request_id = ret;
+
+	ret = gb_operation_sync(fw_mgmt->connection,
+				GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE, &request,
+				sizeof(request), NULL, 0);
+	if (ret) {
+		ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id);
+		fw_mgmt->backend_fw_request_id = 0;
+		dev_err(fw_mgmt->parent,
+			"backend %s firmware update request failed (%d)\n", tag,
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fw_mgmt_backend_fw_updated_operation(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct fw_mgmt *fw_mgmt = gb_connection_get_data(connection);
+	struct gb_fw_mgmt_backend_fw_updated_request *request;
+
+	/* No pending load and validate request ? */
+	if (!fw_mgmt->backend_fw_request_id) {
+		dev_err(fw_mgmt->parent, "unexpected backend firmware updated request received\n");
+		return -ENODEV;
+	}
+
+	if (op->request->payload_size != sizeof(*request)) {
+		dev_err(fw_mgmt->parent, "illegal size of backend firmware updated request (%zu != %zu)\n",
+			op->request->payload_size, sizeof(*request));
+		return -EINVAL;
+	}
+
+	request = op->request->payload;
+
+	/* Invalid request-id ? */
+	if (request->request_id != fw_mgmt->backend_fw_request_id) {
+		dev_err(fw_mgmt->parent, "invalid request id for backend firmware updated request (%02u != %02u)\n",
+			fw_mgmt->backend_fw_request_id, request->request_id);
+		return -ENODEV;
+	}
+
+	ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id);
+	fw_mgmt->backend_fw_request_id = 0;
+	fw_mgmt->backend_fw_status = request->status;
+
+	if ((fw_mgmt->backend_fw_status != GB_FW_BACKEND_FW_STATUS_SUCCESS) &&
+	    (fw_mgmt->backend_fw_status != GB_FW_BACKEND_FW_STATUS_RETRY))
+		dev_err(fw_mgmt->parent,
+			"failed to load backend firmware: %02x\n",
+			fw_mgmt->backend_fw_status);
+
+	complete(&fw_mgmt->completion);
+
+	return 0;
+}
+
+/* Char device fops */
+
+static int fw_mgmt_open(struct inode *inode, struct file *file)
+{
+	struct fw_mgmt *fw_mgmt = get_fw_mgmt(inode->i_cdev);
+
+	/* fw_mgmt structure can't get freed until file descriptor is closed */
+	if (fw_mgmt) {
+		file->private_data = fw_mgmt;
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+static int fw_mgmt_release(struct inode *inode, struct file *file)
+{
+	struct fw_mgmt *fw_mgmt = file->private_data;
+
+	put_fw_mgmt(fw_mgmt);
+	return 0;
+}
+
+static int fw_mgmt_ioctl(struct fw_mgmt *fw_mgmt, unsigned int cmd,
+			 void __user *buf)
+{
+	struct fw_mgmt_ioc_get_intf_version intf_fw_info;
+	struct fw_mgmt_ioc_get_backend_version backend_fw_info;
+	struct fw_mgmt_ioc_intf_load_and_validate intf_load;
+	struct fw_mgmt_ioc_backend_fw_update backend_update;
+	unsigned int timeout;
+	int ret;
+
+	/* Reject any operations after mode-switch has started */
+	if (fw_mgmt->mode_switch_started)
+		return -EBUSY;
+
+	switch (cmd) {
+	case FW_MGMT_IOC_GET_INTF_FW:
+		ret = fw_mgmt_interface_fw_version_operation(fw_mgmt,
+							     &intf_fw_info);
+		if (ret)
+			return ret;
+
+		if (copy_to_user(buf, &intf_fw_info, sizeof(intf_fw_info)))
+			return -EFAULT;
+
+		return 0;
+	case FW_MGMT_IOC_GET_BACKEND_FW:
+		if (copy_from_user(&backend_fw_info, buf,
+				   sizeof(backend_fw_info)))
+			return -EFAULT;
+
+		ret = fw_mgmt_backend_fw_version_operation(fw_mgmt,
+							   &backend_fw_info);
+		if (ret)
+			return ret;
+
+		if (copy_to_user(buf, &backend_fw_info,
+				 sizeof(backend_fw_info)))
+			return -EFAULT;
+
+		return 0;
+	case FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE:
+		if (copy_from_user(&intf_load, buf, sizeof(intf_load)))
+			return -EFAULT;
+
+		ret = fw_mgmt_load_and_validate_operation(fw_mgmt,
+				intf_load.load_method, intf_load.firmware_tag);
+		if (ret)
+			return ret;
+
+		if (!wait_for_completion_timeout(&fw_mgmt->completion,
+						 fw_mgmt->timeout_jiffies)) {
+			dev_err(fw_mgmt->parent, "timed out waiting for firmware load and validation to finish\n");
+			return -ETIMEDOUT;
+		}
+
+		intf_load.status = fw_mgmt->intf_fw_status;
+		intf_load.major = fw_mgmt->intf_fw_major;
+		intf_load.minor = fw_mgmt->intf_fw_minor;
+
+		if (copy_to_user(buf, &intf_load, sizeof(intf_load)))
+			return -EFAULT;
+
+		return 0;
+	case FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE:
+		if (copy_from_user(&backend_update, buf,
+				   sizeof(backend_update)))
+			return -EFAULT;
+
+		ret = fw_mgmt_backend_fw_update_operation(fw_mgmt,
+							  backend_update.firmware_tag);
+		if (ret)
+			return ret;
+
+		if (!wait_for_completion_timeout(&fw_mgmt->completion,
+						 fw_mgmt->timeout_jiffies)) {
+			dev_err(fw_mgmt->parent, "timed out waiting for backend firmware update to finish\n");
+			return -ETIMEDOUT;
+		}
+
+		backend_update.status = fw_mgmt->backend_fw_status;
+
+		if (copy_to_user(buf, &backend_update, sizeof(backend_update)))
+			return -EFAULT;
+
+		return 0;
+	case FW_MGMT_IOC_SET_TIMEOUT_MS:
+		if (get_user(timeout, (unsigned int __user *)buf))
+			return -EFAULT;
+
+		if (!timeout) {
+			dev_err(fw_mgmt->parent, "timeout can't be zero\n");
+			return -EINVAL;
+		}
+
+		fw_mgmt->timeout_jiffies = msecs_to_jiffies(timeout);
+
+		return 0;
+	case FW_MGMT_IOC_MODE_SWITCH:
+		if (!fw_mgmt->intf_fw_loaded) {
+			dev_err(fw_mgmt->parent,
+				"Firmware not loaded for mode-switch\n");
+			return -EPERM;
+		}
+
+		/*
+		 * Disallow new ioctls as the fw-core bundle driver is going to
+		 * get disconnected soon and the character device will get
+		 * removed.
+		 */
+		fw_mgmt->mode_switch_started = true;
+
+		ret = gb_interface_request_mode_switch(fw_mgmt->connection->intf);
+		if (ret) {
+			dev_err(fw_mgmt->parent, "Mode-switch failed: %d\n",
+				ret);
+			fw_mgmt->mode_switch_started = false;
+			return ret;
+		}
+
+		return 0;
+	default:
+		return -ENOTTY;
+	}
+}
+
+static long fw_mgmt_ioctl_unlocked(struct file *file, unsigned int cmd,
+				   unsigned long arg)
+{
+	struct fw_mgmt *fw_mgmt = file->private_data;
+	struct gb_bundle *bundle = fw_mgmt->connection->bundle;
+	int ret = -ENODEV;
+
+	/*
+	 * Serialize ioctls.
+	 *
+	 * We don't want the user to do few operations in parallel. For example,
+	 * updating Interface firmware in parallel for the same Interface. There
+	 * is no need to do things in parallel for speed and we can avoid having
+	 * complicated code for now.
+	 *
+	 * This is also used to protect ->disabled, which is used to check if
+	 * the connection is getting disconnected, so that we don't start any
+	 * new operations.
+	 */
+	mutex_lock(&fw_mgmt->mutex);
+	if (!fw_mgmt->disabled) {
+		ret = gb_pm_runtime_get_sync(bundle);
+		if (!ret) {
+			ret = fw_mgmt_ioctl(fw_mgmt, cmd, (void __user *)arg);
+			gb_pm_runtime_put_autosuspend(bundle);
+		}
+	}
+	mutex_unlock(&fw_mgmt->mutex);
+
+	return ret;
+}
+
+static const struct file_operations fw_mgmt_fops = {
+	.owner		= THIS_MODULE,
+	.open		= fw_mgmt_open,
+	.release	= fw_mgmt_release,
+	.unlocked_ioctl	= fw_mgmt_ioctl_unlocked,
+};
+
+int gb_fw_mgmt_request_handler(struct gb_operation *op)
+{
+	u8 type = op->type;
+
+	switch (type) {
+	case GB_FW_MGMT_TYPE_LOADED_FW:
+		return fw_mgmt_interface_fw_loaded_operation(op);
+	case GB_FW_MGMT_TYPE_BACKEND_FW_UPDATED:
+		return fw_mgmt_backend_fw_updated_operation(op);
+	default:
+		dev_err(&op->connection->bundle->dev,
+			"unsupported request: %u\n", type);
+		return -EINVAL;
+	}
+}
+
+int gb_fw_mgmt_connection_init(struct gb_connection *connection)
+{
+	struct fw_mgmt *fw_mgmt;
+	int ret, minor;
+
+	if (!connection)
+		return 0;
+
+	fw_mgmt = kzalloc(sizeof(*fw_mgmt), GFP_KERNEL);
+	if (!fw_mgmt)
+		return -ENOMEM;
+
+	fw_mgmt->parent = &connection->bundle->dev;
+	fw_mgmt->timeout_jiffies = msecs_to_jiffies(FW_MGMT_TIMEOUT_MS);
+	fw_mgmt->connection = connection;
+
+	gb_connection_set_data(connection, fw_mgmt);
+	init_completion(&fw_mgmt->completion);
+	ida_init(&fw_mgmt->id_map);
+	mutex_init(&fw_mgmt->mutex);
+	kref_init(&fw_mgmt->kref);
+
+	mutex_lock(&list_mutex);
+	list_add(&fw_mgmt->node, &fw_mgmt_list);
+	mutex_unlock(&list_mutex);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto err_list_del;
+
+	minor = ida_alloc_max(&fw_mgmt_minors_map, NUM_MINORS - 1, GFP_KERNEL);
+	if (minor < 0) {
+		ret = minor;
+		goto err_connection_disable;
+	}
+
+	/* Add a char device to allow userspace to interact with fw-mgmt */
+	fw_mgmt->dev_num = MKDEV(MAJOR(fw_mgmt_dev_num), minor);
+	cdev_init(&fw_mgmt->cdev, &fw_mgmt_fops);
+
+	ret = cdev_add(&fw_mgmt->cdev, fw_mgmt->dev_num, 1);
+	if (ret)
+		goto err_remove_ida;
+
+	/* Add a soft link to the previously added char-dev within the bundle */
+	fw_mgmt->class_device = device_create(&fw_mgmt_class, fw_mgmt->parent,
+					      fw_mgmt->dev_num, NULL,
+					      "gb-fw-mgmt-%d", minor);
+	if (IS_ERR(fw_mgmt->class_device)) {
+		ret = PTR_ERR(fw_mgmt->class_device);
+		goto err_del_cdev;
+	}
+
+	return 0;
+
+err_del_cdev:
+	cdev_del(&fw_mgmt->cdev);
+err_remove_ida:
+	ida_free(&fw_mgmt_minors_map, minor);
+err_connection_disable:
+	gb_connection_disable(connection);
+err_list_del:
+	mutex_lock(&list_mutex);
+	list_del(&fw_mgmt->node);
+	mutex_unlock(&list_mutex);
+
+	put_fw_mgmt(fw_mgmt);
+
+	return ret;
+}
+
+void gb_fw_mgmt_connection_exit(struct gb_connection *connection)
+{
+	struct fw_mgmt *fw_mgmt;
+
+	if (!connection)
+		return;
+
+	fw_mgmt = gb_connection_get_data(connection);
+
+	device_destroy(&fw_mgmt_class, fw_mgmt->dev_num);
+	cdev_del(&fw_mgmt->cdev);
+	ida_free(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num));
+
+	/*
+	 * Disallow any new ioctl operations on the char device and wait for
+	 * existing ones to finish.
+	 */
+	mutex_lock(&fw_mgmt->mutex);
+	fw_mgmt->disabled = true;
+	mutex_unlock(&fw_mgmt->mutex);
+
+	/* All pending greybus operations should have finished by now */
+	gb_connection_disable(fw_mgmt->connection);
+
+	/* Disallow new users to get access to the fw_mgmt structure */
+	mutex_lock(&list_mutex);
+	list_del(&fw_mgmt->node);
+	mutex_unlock(&list_mutex);
+
+	/*
+	 * All current users of fw_mgmt would have taken a reference to it by
+	 * now, we can drop our reference and wait the last user will get
+	 * fw_mgmt freed.
+	 */
+	put_fw_mgmt(fw_mgmt);
+}
+
+int fw_mgmt_init(void)
+{
+	int ret;
+
+	ret = class_register(&fw_mgmt_class);
+	if (ret)
+		return ret;
+
+	ret = alloc_chrdev_region(&fw_mgmt_dev_num, 0, NUM_MINORS,
+				  "gb_fw_mgmt");
+	if (ret)
+		goto err_remove_class;
+
+	return 0;
+
+err_remove_class:
+	class_unregister(&fw_mgmt_class);
+	return ret;
+}
+
+void fw_mgmt_exit(void)
+{
+	unregister_chrdev_region(fw_mgmt_dev_num, NUM_MINORS);
+	class_unregister(&fw_mgmt_class);
+	ida_destroy(&fw_mgmt_minors_map);
+}
diff --git a/drivers/staging/greybus/gb-camera.h b/drivers/staging/greybus/gb-camera.h
new file mode 100644
index 000000000000..3e09147435a5
--- /dev/null
+++ b/drivers/staging/greybus/gb-camera.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Camera protocol driver.
+ *
+ * Copyright 2015 Google Inc.
+ */
+#ifndef __GB_CAMERA_H
+#define __GB_CAMERA_H
+
+#include <linux/v4l2-mediabus.h>
+
+/* Input flags need to be set from the caller */
+#define GB_CAMERA_IN_FLAG_TEST		(1 << 0)
+/* Output flags returned */
+#define GB_CAMERA_OUT_FLAG_ADJUSTED	(1 << 0)
+
+/**
+ * struct gb_camera_stream - Represents greybus camera stream.
+ * @width: Stream width in pixels.
+ * @height: Stream height in pixels.
+ * @pixel_code: Media bus pixel code.
+ * @vc: MIPI CSI virtual channel.
+ * @dt: MIPI CSI data types. Most formats use a single data type, in which case
+ *      the second element will be ignored.
+ * @max_size: Maximum size of a frame in bytes. The camera module guarantees
+ *            that all data between the Frame Start and Frame End packet for
+ *            the associated virtual channel and data type(s) will not exceed
+ *            this size.
+ */
+struct gb_camera_stream {
+	unsigned int width;
+	unsigned int height;
+	enum v4l2_mbus_pixelcode pixel_code;
+	unsigned int vc;
+	unsigned int dt[2];
+	unsigned int max_size;
+};
+
+/**
+ * struct gb_camera_csi_params - CSI configuration parameters
+ * @num_lanes: number of CSI data lanes
+ * @clk_freq: CSI clock frequency in Hz
+ */
+struct gb_camera_csi_params {
+	unsigned int num_lanes;
+	unsigned int clk_freq;
+};
+
+/**
+ * struct gb_camera_ops - Greybus camera operations, used by the Greybus camera
+ *                        driver to expose operations to the host camera driver.
+ * @capabilities: Retrieve camera capabilities and store them in the buffer
+ *                'buf' capabilities. The buffer maximum size is specified by
+ *                the caller in the 'size' parameter, and the effective
+ *                capabilities size is returned from the function. If the buffer
+ *                size is too small to hold the capabilities an error is
+ *                returned and the buffer is left untouched.
+ *
+ * @configure_streams: Negotiate configuration and prepare the module for video
+ *                     capture. The caller specifies the number of streams it
+ *                     requests in the 'nstreams' argument and the associated
+ *                     streams configurations in the 'streams' argument. The
+ *                     GB_CAMERA_IN_FLAG_TEST 'flag' can be set to test a
+ *                     configuration without applying it, otherwise the
+ *                     configuration is applied by the module. The module can
+ *                     decide to modify the requested configuration, including
+ *                     using a different number of streams. In that case the
+ *                     modified configuration won't be applied, the
+ *                     GB_CAMERA_OUT_FLAG_ADJUSTED 'flag' will be set upon
+ *                     return, and the modified configuration and number of
+ *                     streams stored in 'streams' and 'array'. The module
+ *                     returns its CSI-2 bus parameters in the 'csi_params'
+ *                     structure in all cases.
+ *
+ * @capture: Submit a capture request. The supplied 'request_id' must be unique
+ *           and higher than the IDs of all the previously submitted requests.
+ *           The 'streams' argument specifies which streams are affected by the
+ *           request in the form of a bitmask, with bits corresponding to the
+ *           configured streams indexes. If the request contains settings, the
+ *           'settings' argument points to the settings buffer and its size is
+ *           specified by the 'settings_size' argument. Otherwise the 'settings'
+ *           argument should be set to NULL and 'settings_size' to 0.
+ *
+ * @flush: Flush the capture requests queue. Return the ID of the last request
+ *         that will processed by the device before it stops transmitting video
+ *         frames. All queued capture requests with IDs higher than the returned
+ *         ID will be dropped without being processed.
+ */
+struct gb_camera_ops {
+	ssize_t (*capabilities)(void *priv, char *buf, size_t len);
+	int (*configure_streams)(void *priv, unsigned int *nstreams,
+			unsigned int *flags, struct gb_camera_stream *streams,
+			struct gb_camera_csi_params *csi_params);
+	int (*capture)(void *priv, u32 request_id,
+		       unsigned int streams, unsigned int num_frames,
+		       size_t settings_size, const void *settings);
+	int (*flush)(void *priv, u32 *request_id);
+};
+
+/**
+ * struct gb_camera_module - Represents greybus camera module.
+ * @priv: Module private data, passed to all camera operations.
+ * @ops: Greybus camera operation callbacks.
+ * @interface_id: Interface id of the module.
+ * @refcount: Reference counting object.
+ * @release: Module release function.
+ * @list: List entry in the camera modules list.
+ */
+struct gb_camera_module {
+	void *priv;
+	const struct gb_camera_ops *ops;
+
+	unsigned int interface_id;
+	struct kref refcount;
+	void (*release)(struct kref *kref);
+	struct list_head list; /* Global list */
+};
+
+#define gb_camera_call(f, op, args...)      \
+	(!(f) ? -ENODEV : (((f)->ops->op) ?  \
+	(f)->ops->op((f)->priv, ##args) : -ENOIOCTLCMD))
+
+int gb_camera_register(struct gb_camera_module *module);
+int gb_camera_unregister(struct gb_camera_module *module);
+
+#endif /* __GB_CAMERA_H */
diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c
new file mode 100644
index 000000000000..60cf09a302a7
--- /dev/null
+++ b/drivers/staging/greybus/gbphy.c
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Bridged-Phy Bus driver
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+
+#define GB_GBPHY_AUTOSUSPEND_MS	3000
+
+struct gbphy_host {
+	struct gb_bundle *bundle;
+	struct list_head devices;
+};
+
+static DEFINE_IDA(gbphy_id);
+
+static ssize_t protocol_id_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct gbphy_device *gbphy_dev = to_gbphy_dev(dev);
+
+	return sprintf(buf, "0x%02x\n", gbphy_dev->cport_desc->protocol_id);
+}
+static DEVICE_ATTR_RO(protocol_id);
+
+static struct attribute *gbphy_dev_attrs[] = {
+	&dev_attr_protocol_id.attr,
+	NULL,
+};
+
+ATTRIBUTE_GROUPS(gbphy_dev);
+
+static void gbphy_dev_release(struct device *dev)
+{
+	struct gbphy_device *gbphy_dev = to_gbphy_dev(dev);
+
+	ida_free(&gbphy_id, gbphy_dev->id);
+	kfree(gbphy_dev);
+}
+
+#ifdef CONFIG_PM
+static int gb_gbphy_idle(struct device *dev)
+{
+	pm_runtime_mark_last_busy(dev);
+	pm_request_autosuspend(dev);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops gb_gbphy_pm_ops = {
+	SET_RUNTIME_PM_OPS(pm_generic_runtime_suspend,
+			   pm_generic_runtime_resume,
+			   gb_gbphy_idle)
+};
+
+static const struct device_type greybus_gbphy_dev_type = {
+	.name	 =	"gbphy_device",
+	.release =	gbphy_dev_release,
+	.pm	=	&gb_gbphy_pm_ops,
+};
+
+static int gbphy_dev_uevent(const struct device *dev, struct kobj_uevent_env *env)
+{
+	const struct gbphy_device *gbphy_dev = to_gbphy_dev(dev);
+	const struct greybus_descriptor_cport *cport_desc = gbphy_dev->cport_desc;
+	const struct gb_bundle *bundle = gbphy_dev->bundle;
+	const struct gb_interface *intf = bundle->intf;
+	const struct gb_module *module = intf->module;
+	const struct gb_host_device *hd = intf->hd;
+
+	if (add_uevent_var(env, "BUS=%u", hd->bus_id))
+		return -ENOMEM;
+	if (add_uevent_var(env, "MODULE=%u", module->module_id))
+		return -ENOMEM;
+	if (add_uevent_var(env, "INTERFACE=%u", intf->interface_id))
+		return -ENOMEM;
+	if (add_uevent_var(env, "GREYBUS_ID=%08x/%08x",
+			   intf->vendor_id, intf->product_id))
+		return -ENOMEM;
+	if (add_uevent_var(env, "BUNDLE=%u", gbphy_dev->bundle->id))
+		return -ENOMEM;
+	if (add_uevent_var(env, "BUNDLE_CLASS=%02x", bundle->class))
+		return -ENOMEM;
+	if (add_uevent_var(env, "GBPHY=%u", gbphy_dev->id))
+		return -ENOMEM;
+	if (add_uevent_var(env, "PROTOCOL_ID=%02x", cport_desc->protocol_id))
+		return -ENOMEM;
+
+	return 0;
+}
+
+static const struct gbphy_device_id *
+gbphy_dev_match_id(const struct gbphy_device *gbphy_dev,
+		   const struct gbphy_driver *gbphy_drv)
+{
+	const struct gbphy_device_id *id = gbphy_drv->id_table;
+
+	if (!id)
+		return NULL;
+
+	for (; id->protocol_id; id++)
+		if (id->protocol_id == gbphy_dev->cport_desc->protocol_id)
+			return id;
+
+	return NULL;
+}
+
+static int gbphy_dev_match(struct device *dev, const struct device_driver *drv)
+{
+	const struct gbphy_driver *gbphy_drv = to_gbphy_driver(drv);
+	struct gbphy_device *gbphy_dev = to_gbphy_dev(dev);
+	const struct gbphy_device_id *id;
+
+	id = gbphy_dev_match_id(gbphy_dev, gbphy_drv);
+	if (id)
+		return 1;
+
+	return 0;
+}
+
+static int gbphy_dev_probe(struct device *dev)
+{
+	struct gbphy_driver *gbphy_drv = to_gbphy_driver(dev->driver);
+	struct gbphy_device *gbphy_dev = to_gbphy_dev(dev);
+	const struct gbphy_device_id *id;
+	int ret;
+
+	id = gbphy_dev_match_id(gbphy_dev, gbphy_drv);
+	if (!id)
+		return -ENODEV;
+
+	/* for old kernels we need get_sync to resume parent devices */
+	ret = gb_pm_runtime_get_sync(gbphy_dev->bundle);
+	if (ret < 0)
+		return ret;
+
+	pm_runtime_set_autosuspend_delay(dev, GB_GBPHY_AUTOSUSPEND_MS);
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_get_noresume(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	/*
+	 * Drivers should call put on the gbphy dev before returning
+	 * from probe if they support runtime pm.
+	 */
+	ret = gbphy_drv->probe(gbphy_dev, id);
+	if (ret) {
+		pm_runtime_disable(dev);
+		pm_runtime_set_suspended(dev);
+		pm_runtime_put_noidle(dev);
+		pm_runtime_dont_use_autosuspend(dev);
+	}
+
+	gb_pm_runtime_put_autosuspend(gbphy_dev->bundle);
+
+	return ret;
+}
+
+static void gbphy_dev_remove(struct device *dev)
+{
+	struct gbphy_driver *gbphy_drv = to_gbphy_driver(dev->driver);
+	struct gbphy_device *gbphy_dev = to_gbphy_dev(dev);
+
+	gbphy_drv->remove(gbphy_dev);
+
+	pm_runtime_disable(dev);
+	pm_runtime_set_suspended(dev);
+	pm_runtime_put_noidle(dev);
+	pm_runtime_dont_use_autosuspend(dev);
+}
+
+static const struct bus_type gbphy_bus_type = {
+	.name =		"gbphy",
+	.match =	gbphy_dev_match,
+	.probe =	gbphy_dev_probe,
+	.remove =	gbphy_dev_remove,
+	.uevent =	gbphy_dev_uevent,
+};
+
+int gb_gbphy_register_driver(struct gbphy_driver *driver,
+			     struct module *owner, const char *mod_name)
+{
+	int retval;
+
+	if (greybus_disabled())
+		return -ENODEV;
+
+	driver->driver.bus = &gbphy_bus_type;
+	driver->driver.name = driver->name;
+	driver->driver.owner = owner;
+	driver->driver.mod_name = mod_name;
+
+	retval = driver_register(&driver->driver);
+	if (retval)
+		return retval;
+
+	pr_info("registered new driver %s\n", driver->name);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gb_gbphy_register_driver);
+
+void gb_gbphy_deregister_driver(struct gbphy_driver *driver)
+{
+	driver_unregister(&driver->driver);
+}
+EXPORT_SYMBOL_GPL(gb_gbphy_deregister_driver);
+
+static struct gbphy_device *gb_gbphy_create_dev(struct gb_bundle *bundle,
+						struct greybus_descriptor_cport *cport_desc)
+{
+	struct gbphy_device *gbphy_dev;
+	int retval;
+	int id;
+
+	id = ida_alloc_min(&gbphy_id, 1, GFP_KERNEL);
+	if (id < 0)
+		return ERR_PTR(id);
+
+	gbphy_dev = kzalloc(sizeof(*gbphy_dev), GFP_KERNEL);
+	if (!gbphy_dev) {
+		ida_free(&gbphy_id, id);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	gbphy_dev->id = id;
+	gbphy_dev->bundle = bundle;
+	gbphy_dev->cport_desc = cport_desc;
+	gbphy_dev->dev.parent = &bundle->dev;
+	gbphy_dev->dev.bus = &gbphy_bus_type;
+	gbphy_dev->dev.type = &greybus_gbphy_dev_type;
+	gbphy_dev->dev.groups = gbphy_dev_groups;
+	gbphy_dev->dev.dma_mask = bundle->dev.dma_mask;
+	dev_set_name(&gbphy_dev->dev, "gbphy%d", id);
+
+	retval = device_register(&gbphy_dev->dev);
+	if (retval) {
+		put_device(&gbphy_dev->dev);
+		return ERR_PTR(retval);
+	}
+
+	return gbphy_dev;
+}
+
+static void gb_gbphy_disconnect(struct gb_bundle *bundle)
+{
+	struct gbphy_host *gbphy_host = greybus_get_drvdata(bundle);
+	struct gbphy_device *gbphy_dev, *temp;
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		gb_pm_runtime_get_noresume(bundle);
+
+	list_for_each_entry_safe(gbphy_dev, temp, &gbphy_host->devices, list) {
+		list_del(&gbphy_dev->list);
+		device_unregister(&gbphy_dev->dev);
+	}
+
+	kfree(gbphy_host);
+}
+
+static int gb_gbphy_probe(struct gb_bundle *bundle,
+			  const struct greybus_bundle_id *id)
+{
+	struct gbphy_host *gbphy_host;
+	struct gbphy_device *gbphy_dev;
+	int i;
+
+	if (bundle->num_cports == 0)
+		return -ENODEV;
+
+	gbphy_host = kzalloc(sizeof(*gbphy_host), GFP_KERNEL);
+	if (!gbphy_host)
+		return -ENOMEM;
+
+	gbphy_host->bundle = bundle;
+	INIT_LIST_HEAD(&gbphy_host->devices);
+	greybus_set_drvdata(bundle, gbphy_host);
+
+	/*
+	 * Create a bunch of children devices, one per cport, and bind the
+	 * bridged phy drivers to them.
+	 */
+	for (i = 0; i < bundle->num_cports; ++i) {
+		gbphy_dev = gb_gbphy_create_dev(bundle, &bundle->cport_desc[i]);
+		if (IS_ERR(gbphy_dev)) {
+			gb_gbphy_disconnect(bundle);
+			return PTR_ERR(gbphy_dev);
+		}
+		list_add(&gbphy_dev->list, &gbphy_host->devices);
+	}
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+}
+
+static const struct greybus_bundle_id gb_gbphy_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_BRIDGED_PHY) },
+	{ },
+};
+MODULE_DEVICE_TABLE(greybus, gb_gbphy_id_table);
+
+static struct greybus_driver gb_gbphy_driver = {
+	.name		= "gbphy",
+	.probe		= gb_gbphy_probe,
+	.disconnect	= gb_gbphy_disconnect,
+	.id_table	= gb_gbphy_id_table,
+};
+
+static int __init gbphy_init(void)
+{
+	int retval;
+
+	retval = bus_register(&gbphy_bus_type);
+	if (retval) {
+		pr_err("gbphy bus register failed (%d)\n", retval);
+		return retval;
+	}
+
+	retval = greybus_register(&gb_gbphy_driver);
+	if (retval) {
+		pr_err("error registering greybus driver\n");
+		goto error_gbphy;
+	}
+
+	return 0;
+
+error_gbphy:
+	bus_unregister(&gbphy_bus_type);
+	ida_destroy(&gbphy_id);
+	return retval;
+}
+module_init(gbphy_init);
+
+static void __exit gbphy_exit(void)
+{
+	greybus_deregister(&gb_gbphy_driver);
+	bus_unregister(&gbphy_bus_type);
+	ida_destroy(&gbphy_id);
+}
+module_exit(gbphy_exit);
+
+MODULE_DESCRIPTION("Greybus Bridged-Phy Bus driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/gbphy.h b/drivers/staging/greybus/gbphy.h
new file mode 100644
index 000000000000..d4a225b76338
--- /dev/null
+++ b/drivers/staging/greybus/gbphy.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Bridged-Phy Bus driver
+ *
+ * Copyright 2016 Google Inc.
+ */
+
+#ifndef __GBPHY_H
+#define __GBPHY_H
+
+struct gbphy_device {
+	u32 id;
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_bundle *bundle;
+	struct list_head list;
+	struct device dev;
+};
+#define to_gbphy_dev(d) container_of(d, struct gbphy_device, dev)
+
+static inline void *gb_gbphy_get_data(struct gbphy_device *gdev)
+{
+	return dev_get_drvdata(&gdev->dev);
+}
+
+static inline void gb_gbphy_set_data(struct gbphy_device *gdev, void *data)
+{
+	dev_set_drvdata(&gdev->dev, data);
+}
+
+struct gbphy_device_id {
+	__u8 protocol_id;
+};
+
+#define GBPHY_PROTOCOL(p)		\
+	.protocol_id	= (p),
+
+struct gbphy_driver {
+	const char *name;
+	int (*probe)(struct gbphy_device *device,
+		     const struct gbphy_device_id *id);
+	void (*remove)(struct gbphy_device *device);
+	const struct gbphy_device_id *id_table;
+
+	struct device_driver driver;
+};
+#define to_gbphy_driver(d) container_of(d, struct gbphy_driver, driver)
+
+int gb_gbphy_register_driver(struct gbphy_driver *driver,
+			     struct module *owner, const char *mod_name);
+void gb_gbphy_deregister_driver(struct gbphy_driver *driver);
+
+#define gb_gbphy_register(driver) \
+	gb_gbphy_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
+#define gb_gbphy_deregister(driver) \
+	gb_gbphy_deregister_driver(driver)
+
+/**
+ * module_gbphy_driver() - Helper macro for registering a gbphy driver
+ * @__gbphy_driver: gbphy_driver structure
+ *
+ * Helper macro for gbphy drivers to set up proper module init / exit
+ * functions.  Replaces module_init() and module_exit() and keeps people from
+ * printing pointless things to the kernel log when their driver is loaded.
+ */
+#define module_gbphy_driver(__gbphy_driver)	\
+	module_driver(__gbphy_driver, gb_gbphy_register, gb_gbphy_deregister)
+
+#ifdef CONFIG_PM
+static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev)
+{
+	struct device *dev = &gbphy_dev->dev;
+	int ret;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret < 0) {
+		dev_err(dev, "pm_runtime_get_sync failed: %d\n", ret);
+		pm_runtime_put_noidle(dev);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev)
+{
+	struct device *dev = &gbphy_dev->dev;
+
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+}
+
+static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev)
+{
+	pm_runtime_get_noresume(&gbphy_dev->dev);
+}
+
+static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev)
+{
+	pm_runtime_put_noidle(&gbphy_dev->dev);
+}
+#else
+static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev) { return 0; }
+static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev) {}
+static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev) {}
+static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev) {}
+#endif
+
+#endif /* __GBPHY_H */
+
diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c
new file mode 100644
index 000000000000..ac62b932e6a4
--- /dev/null
+++ b/drivers/staging/greybus/gpio.c
@@ -0,0 +1,626 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * GPIO Greybus driver.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/gpio/driver.h>
+#include <linux/mutex.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+
+struct gb_gpio_line {
+	/* The following has to be an array of line_max entries */
+	/* --> make them just a flags field */
+	u8			active:    1,
+				direction: 1,	/* 0 = output, 1 = input */
+				value:     1;	/* 0 = low, 1 = high */
+	u16			debounce_usec;
+
+	u8			irq_type;
+	bool			irq_type_pending;
+	bool			masked;
+	bool			masked_pending;
+};
+
+struct gb_gpio_controller {
+	struct gbphy_device	*gbphy_dev;
+	struct gb_connection	*connection;
+	u8			line_max;	/* max line number */
+	struct gb_gpio_line	*lines;
+
+	struct gpio_chip	chip;
+	struct irq_chip		irqc;
+	struct mutex		irq_lock;
+};
+
+static struct gpio_chip *irq_data_to_gpio_chip(struct irq_data *d)
+{
+	return d->domain->host_data;
+}
+
+static int gb_gpio_line_count_operation(struct gb_gpio_controller *ggc)
+{
+	struct gb_gpio_line_count_response response;
+	int ret;
+
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_LINE_COUNT,
+				NULL, 0, &response, sizeof(response));
+	if (!ret)
+		ggc->line_max = response.count;
+	return ret;
+}
+
+static int gb_gpio_activate_operation(struct gb_gpio_controller *ggc, u8 which)
+{
+	struct gb_gpio_activate_request request;
+	struct gbphy_device *gbphy_dev = ggc->gbphy_dev;
+	int ret;
+
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		return ret;
+
+	request.which = which;
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_ACTIVATE,
+				&request, sizeof(request), NULL, 0);
+	if (ret) {
+		gbphy_runtime_put_autosuspend(gbphy_dev);
+		return ret;
+	}
+
+	ggc->lines[which].active = true;
+
+	return 0;
+}
+
+static void gb_gpio_deactivate_operation(struct gb_gpio_controller *ggc,
+					 u8 which)
+{
+	struct gbphy_device *gbphy_dev = ggc->gbphy_dev;
+	struct device *dev = &gbphy_dev->dev;
+	struct gb_gpio_deactivate_request request;
+	int ret;
+
+	request.which = which;
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_DEACTIVATE,
+				&request, sizeof(request), NULL, 0);
+	if (ret) {
+		dev_err(dev, "failed to deactivate gpio %u\n", which);
+		goto out_pm_put;
+	}
+
+	ggc->lines[which].active = false;
+
+out_pm_put:
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+}
+
+static int gb_gpio_get_direction_operation(struct gb_gpio_controller *ggc,
+					   u8 which)
+{
+	struct device *dev = &ggc->gbphy_dev->dev;
+	struct gb_gpio_get_direction_request request;
+	struct gb_gpio_get_direction_response response;
+	int ret;
+	u8 direction;
+
+	request.which = which;
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_GET_DIRECTION,
+				&request, sizeof(request),
+				&response, sizeof(response));
+	if (ret)
+		return ret;
+
+	direction = response.direction;
+	if (direction && direction != 1) {
+		dev_warn(dev, "gpio %u direction was %u (should be 0 or 1)\n",
+			 which, direction);
+	}
+	ggc->lines[which].direction = direction ? 1 : 0;
+	return 0;
+}
+
+static int gb_gpio_direction_in_operation(struct gb_gpio_controller *ggc,
+					  u8 which)
+{
+	struct gb_gpio_direction_in_request request;
+	int ret;
+
+	request.which = which;
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_DIRECTION_IN,
+				&request, sizeof(request), NULL, 0);
+	if (!ret)
+		ggc->lines[which].direction = 1;
+	return ret;
+}
+
+static int gb_gpio_direction_out_operation(struct gb_gpio_controller *ggc,
+					   u8 which, bool value_high)
+{
+	struct gb_gpio_direction_out_request request;
+	int ret;
+
+	request.which = which;
+	request.value = value_high ? 1 : 0;
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_DIRECTION_OUT,
+				&request, sizeof(request), NULL, 0);
+	if (!ret)
+		ggc->lines[which].direction = 0;
+	return ret;
+}
+
+static int gb_gpio_get_value_operation(struct gb_gpio_controller *ggc,
+				       u8 which)
+{
+	struct device *dev = &ggc->gbphy_dev->dev;
+	struct gb_gpio_get_value_request request;
+	struct gb_gpio_get_value_response response;
+	int ret;
+	u8 value;
+
+	request.which = which;
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_GET_VALUE,
+				&request, sizeof(request),
+				&response, sizeof(response));
+	if (ret) {
+		dev_err(dev, "failed to get value of gpio %u\n", which);
+		return ret;
+	}
+
+	value = response.value;
+	if (value && value != 1) {
+		dev_warn(dev, "gpio %u value was %u (should be 0 or 1)\n",
+			 which, value);
+	}
+	ggc->lines[which].value = value ? 1 : 0;
+	return 0;
+}
+
+static int gb_gpio_set_value_operation(struct gb_gpio_controller *ggc,
+				       u8 which, bool value_high)
+{
+	struct device *dev = &ggc->gbphy_dev->dev;
+	struct gb_gpio_set_value_request request;
+	int ret;
+
+	request.which = which;
+	request.value = value_high ? 1 : 0;
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_SET_VALUE,
+				&request, sizeof(request), NULL, 0);
+	if (ret) {
+		dev_err(dev, "failed to set value of gpio %u\n", which);
+		return ret;
+	}
+
+	ggc->lines[which].value = request.value;
+
+	return 0;
+}
+
+static int gb_gpio_set_debounce_operation(struct gb_gpio_controller *ggc,
+					  u8 which, u16 debounce_usec)
+{
+	struct gb_gpio_set_debounce_request request;
+	int ret;
+
+	request.which = which;
+	request.usec = cpu_to_le16(debounce_usec);
+	ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_SET_DEBOUNCE,
+				&request, sizeof(request), NULL, 0);
+	if (!ret)
+		ggc->lines[which].debounce_usec = debounce_usec;
+	return ret;
+}
+
+static void _gb_gpio_irq_mask(struct gb_gpio_controller *ggc, u8 hwirq)
+{
+	struct device *dev = &ggc->gbphy_dev->dev;
+	struct gb_gpio_irq_mask_request request;
+	int ret;
+
+	request.which = hwirq;
+	ret = gb_operation_sync(ggc->connection,
+				GB_GPIO_TYPE_IRQ_MASK,
+				&request, sizeof(request), NULL, 0);
+	if (ret)
+		dev_err(dev, "failed to mask irq: %d\n", ret);
+}
+
+static void _gb_gpio_irq_unmask(struct gb_gpio_controller *ggc, u8 hwirq)
+{
+	struct device *dev = &ggc->gbphy_dev->dev;
+	struct gb_gpio_irq_unmask_request request;
+	int ret;
+
+	request.which = hwirq;
+	ret = gb_operation_sync(ggc->connection,
+				GB_GPIO_TYPE_IRQ_UNMASK,
+				&request, sizeof(request), NULL, 0);
+	if (ret)
+		dev_err(dev, "failed to unmask irq: %d\n", ret);
+}
+
+static void _gb_gpio_irq_set_type(struct gb_gpio_controller *ggc,
+				  u8 hwirq, u8 type)
+{
+	struct device *dev = &ggc->gbphy_dev->dev;
+	struct gb_gpio_irq_type_request request;
+	int ret;
+
+	request.which = hwirq;
+	request.type = type;
+
+	ret = gb_operation_sync(ggc->connection,
+				GB_GPIO_TYPE_IRQ_TYPE,
+				&request, sizeof(request), NULL, 0);
+	if (ret)
+		dev_err(dev, "failed to set irq type: %d\n", ret);
+}
+
+static void gb_gpio_irq_mask(struct irq_data *d)
+{
+	struct gpio_chip *chip = irq_data_to_gpio_chip(d);
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+	struct gb_gpio_line *line = &ggc->lines[d->hwirq];
+
+	line->masked = true;
+	line->masked_pending = true;
+}
+
+static void gb_gpio_irq_unmask(struct irq_data *d)
+{
+	struct gpio_chip *chip = irq_data_to_gpio_chip(d);
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+	struct gb_gpio_line *line = &ggc->lines[d->hwirq];
+
+	line->masked = false;
+	line->masked_pending = true;
+}
+
+static int gb_gpio_irq_set_type(struct irq_data *d, unsigned int type)
+{
+	struct gpio_chip *chip = irq_data_to_gpio_chip(d);
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+	struct gb_gpio_line *line = &ggc->lines[d->hwirq];
+	struct device *dev = &ggc->gbphy_dev->dev;
+	u8 irq_type;
+
+	switch (type) {
+	case IRQ_TYPE_NONE:
+		irq_type = GB_GPIO_IRQ_TYPE_NONE;
+		break;
+	case IRQ_TYPE_EDGE_RISING:
+		irq_type = GB_GPIO_IRQ_TYPE_EDGE_RISING;
+		break;
+	case IRQ_TYPE_EDGE_FALLING:
+		irq_type = GB_GPIO_IRQ_TYPE_EDGE_FALLING;
+		break;
+	case IRQ_TYPE_EDGE_BOTH:
+		irq_type = GB_GPIO_IRQ_TYPE_EDGE_BOTH;
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		irq_type = GB_GPIO_IRQ_TYPE_LEVEL_LOW;
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:
+		irq_type = GB_GPIO_IRQ_TYPE_LEVEL_HIGH;
+		break;
+	default:
+		dev_err(dev, "unsupported irq type: %u\n", type);
+		return -EINVAL;
+	}
+
+	line->irq_type = irq_type;
+	line->irq_type_pending = true;
+
+	return 0;
+}
+
+static void gb_gpio_irq_bus_lock(struct irq_data *d)
+{
+	struct gpio_chip *chip = irq_data_to_gpio_chip(d);
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+
+	mutex_lock(&ggc->irq_lock);
+}
+
+static void gb_gpio_irq_bus_sync_unlock(struct irq_data *d)
+{
+	struct gpio_chip *chip = irq_data_to_gpio_chip(d);
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+	struct gb_gpio_line *line = &ggc->lines[d->hwirq];
+
+	if (line->irq_type_pending) {
+		_gb_gpio_irq_set_type(ggc, d->hwirq, line->irq_type);
+		line->irq_type_pending = false;
+	}
+
+	if (line->masked_pending) {
+		if (line->masked)
+			_gb_gpio_irq_mask(ggc, d->hwirq);
+		else
+			_gb_gpio_irq_unmask(ggc, d->hwirq);
+		line->masked_pending = false;
+	}
+
+	mutex_unlock(&ggc->irq_lock);
+}
+
+static int gb_gpio_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_gpio_controller *ggc = gb_connection_get_data(connection);
+	struct device *dev = &ggc->gbphy_dev->dev;
+	struct gb_message *request;
+	struct gb_gpio_irq_event_request *event;
+	u8 type = op->type;
+	int irq, ret;
+
+	if (type != GB_GPIO_TYPE_IRQ_EVENT) {
+		dev_err(dev, "unsupported unsolicited request: %u\n", type);
+		return -EINVAL;
+	}
+
+	request = op->request;
+
+	if (request->payload_size < sizeof(*event)) {
+		dev_err(dev, "short event received (%zu < %zu)\n",
+			request->payload_size, sizeof(*event));
+		return -EINVAL;
+	}
+
+	event = request->payload;
+	if (event->which > ggc->line_max) {
+		dev_err(dev, "invalid hw irq: %d\n", event->which);
+		return -EINVAL;
+	}
+
+	irq = irq_find_mapping(ggc->chip.irq.domain, event->which);
+	if (!irq) {
+		dev_err(dev, "failed to find IRQ\n");
+		return -EINVAL;
+	}
+
+	ret = generic_handle_irq_safe(irq);
+	if (ret)
+		dev_err(dev, "failed to invoke irq handler\n");
+
+	return ret;
+}
+
+static int gb_gpio_request(struct gpio_chip *chip, unsigned int offset)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+
+	return gb_gpio_activate_operation(ggc, (u8)offset);
+}
+
+static void gb_gpio_free(struct gpio_chip *chip, unsigned int offset)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+
+	gb_gpio_deactivate_operation(ggc, (u8)offset);
+}
+
+static int gb_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+	u8 which;
+	int ret;
+
+	which = (u8)offset;
+	ret = gb_gpio_get_direction_operation(ggc, which);
+	if (ret)
+		return ret;
+
+	return ggc->lines[which].direction ? 1 : 0;
+}
+
+static int gb_gpio_direction_input(struct gpio_chip *chip, unsigned int offset)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+
+	return gb_gpio_direction_in_operation(ggc, (u8)offset);
+}
+
+static int gb_gpio_direction_output(struct gpio_chip *chip, unsigned int offset,
+				    int value)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+
+	return gb_gpio_direction_out_operation(ggc, (u8)offset, !!value);
+}
+
+static int gb_gpio_get(struct gpio_chip *chip, unsigned int offset)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+	u8 which;
+	int ret;
+
+	which = (u8)offset;
+	ret = gb_gpio_get_value_operation(ggc, which);
+	if (ret)
+		return ret;
+
+	return ggc->lines[which].value;
+}
+
+static int gb_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+
+	return gb_gpio_set_value_operation(ggc, (u8)offset, !!value);
+}
+
+static int gb_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
+			      unsigned long config)
+{
+	struct gb_gpio_controller *ggc = gpiochip_get_data(chip);
+	u32 debounce;
+
+	if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+		return -ENOTSUPP;
+
+	debounce = pinconf_to_config_argument(config);
+	if (debounce > U16_MAX)
+		return -EINVAL;
+
+	return gb_gpio_set_debounce_operation(ggc, (u8)offset, (u16)debounce);
+}
+
+static int gb_gpio_controller_setup(struct gb_gpio_controller *ggc)
+{
+	int ret;
+
+	/* Now find out how many lines there are */
+	ret = gb_gpio_line_count_operation(ggc);
+	if (ret)
+		return ret;
+
+	ggc->lines = kcalloc(ggc->line_max + 1, sizeof(*ggc->lines),
+			     GFP_KERNEL);
+	if (!ggc->lines)
+		return -ENOMEM;
+
+	return ret;
+}
+
+static int gb_gpio_probe(struct gbphy_device *gbphy_dev,
+			 const struct gbphy_device_id *id)
+{
+	struct gb_connection *connection;
+	struct gb_gpio_controller *ggc;
+	struct gpio_chip *gpio;
+	struct gpio_irq_chip *girq;
+	struct irq_chip *irqc;
+	int ret;
+
+	ggc = kzalloc(sizeof(*ggc), GFP_KERNEL);
+	if (!ggc)
+		return -ENOMEM;
+
+	connection =
+		gb_connection_create(gbphy_dev->bundle,
+				     le16_to_cpu(gbphy_dev->cport_desc->id),
+				     gb_gpio_request_handler);
+	if (IS_ERR(connection)) {
+		ret = PTR_ERR(connection);
+		goto exit_ggc_free;
+	}
+
+	ggc->connection = connection;
+	gb_connection_set_data(connection, ggc);
+	ggc->gbphy_dev = gbphy_dev;
+	gb_gbphy_set_data(gbphy_dev, ggc);
+
+	ret = gb_connection_enable_tx(connection);
+	if (ret)
+		goto exit_connection_destroy;
+
+	ret = gb_gpio_controller_setup(ggc);
+	if (ret)
+		goto exit_connection_disable;
+
+	irqc = &ggc->irqc;
+	irqc->irq_mask = gb_gpio_irq_mask;
+	irqc->irq_unmask = gb_gpio_irq_unmask;
+	irqc->irq_set_type = gb_gpio_irq_set_type;
+	irqc->irq_bus_lock = gb_gpio_irq_bus_lock;
+	irqc->irq_bus_sync_unlock = gb_gpio_irq_bus_sync_unlock;
+	irqc->name = "greybus_gpio";
+
+	mutex_init(&ggc->irq_lock);
+
+	gpio = &ggc->chip;
+
+	gpio->label = "greybus_gpio";
+	gpio->parent = &gbphy_dev->dev;
+	gpio->owner = THIS_MODULE;
+
+	gpio->request = gb_gpio_request;
+	gpio->free = gb_gpio_free;
+	gpio->get_direction = gb_gpio_get_direction;
+	gpio->direction_input = gb_gpio_direction_input;
+	gpio->direction_output = gb_gpio_direction_output;
+	gpio->get = gb_gpio_get;
+	gpio->set = gb_gpio_set;
+	gpio->set_config = gb_gpio_set_config;
+	gpio->base = -1;		/* Allocate base dynamically */
+	gpio->ngpio = ggc->line_max + 1;
+	gpio->can_sleep = true;
+
+	girq = &gpio->irq;
+	girq->chip = irqc;
+	/* The event comes from the outside so no parent handler */
+	girq->parent_handler = NULL;
+	girq->num_parents = 0;
+	girq->parents = NULL;
+	girq->default_type = IRQ_TYPE_NONE;
+	girq->handler = handle_level_irq;
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto exit_line_free;
+
+	ret = gpiochip_add_data(gpio, ggc);
+	if (ret) {
+		dev_err(&gbphy_dev->dev, "failed to add gpio chip: %d\n", ret);
+		goto exit_line_free;
+	}
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+	return 0;
+
+exit_line_free:
+	kfree(ggc->lines);
+exit_connection_disable:
+	gb_connection_disable(connection);
+exit_connection_destroy:
+	gb_connection_destroy(connection);
+exit_ggc_free:
+	kfree(ggc);
+	return ret;
+}
+
+static void gb_gpio_remove(struct gbphy_device *gbphy_dev)
+{
+	struct gb_gpio_controller *ggc = gb_gbphy_get_data(gbphy_dev);
+	struct gb_connection *connection = ggc->connection;
+	int ret;
+
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		gbphy_runtime_get_noresume(gbphy_dev);
+
+	gb_connection_disable_rx(connection);
+	gpiochip_remove(&ggc->chip);
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+	kfree(ggc->lines);
+	kfree(ggc);
+}
+
+static const struct gbphy_device_id gb_gpio_id_table[] = {
+	{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_GPIO) },
+	{ },
+};
+MODULE_DEVICE_TABLE(gbphy, gb_gpio_id_table);
+
+static struct gbphy_driver gpio_driver = {
+	.name		= "gpio",
+	.probe		= gb_gpio_probe,
+	.remove		= gb_gpio_remove,
+	.id_table	= gb_gpio_id_table,
+};
+
+module_gbphy_driver(gpio_driver);
+MODULE_DESCRIPTION("GPIO Greybus driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/greybus_authentication.h b/drivers/staging/greybus/greybus_authentication.h
new file mode 100644
index 000000000000..ee88f880cfe3
--- /dev/null
+++ b/drivers/staging/greybus/greybus_authentication.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Greybus Component Authentication User Header
+ *
+ * Copyright(c) 2016 Google Inc. All rights reserved.
+ * Copyright(c) 2016 Linaro Ltd. All rights reserved.
+ */
+
+#ifndef __GREYBUS_AUTHENTICATION_USER_H
+#define __GREYBUS_AUTHENTICATION_USER_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+#define CAP_CERTIFICATE_MAX_SIZE	1600
+#define CAP_SIGNATURE_MAX_SIZE		320
+
+/* Certificate class types */
+#define CAP_CERT_IMS_EAPC		0x00000001
+#define CAP_CERT_IMS_EASC		0x00000002
+#define CAP_CERT_IMS_EARC		0x00000003
+#define CAP_CERT_IMS_IAPC		0x00000004
+#define CAP_CERT_IMS_IASC		0x00000005
+#define CAP_CERT_IMS_IARC		0x00000006
+
+/* IMS Certificate response result codes */
+#define CAP_IMS_RESULT_CERT_FOUND	0x00
+#define CAP_IMS_RESULT_CERT_CLASS_INVAL	0x01
+#define CAP_IMS_RESULT_CERT_CORRUPT	0x02
+#define CAP_IMS_RESULT_CERT_NOT_FOUND	0x03
+
+/* Authentication types */
+#define CAP_AUTH_IMS_PRI		0x00000001
+#define CAP_AUTH_IMS_SEC		0x00000002
+#define CAP_AUTH_IMS_RSA		0x00000003
+
+/* Authenticate response result codes */
+#define CAP_AUTH_RESULT_CR_SUCCESS	0x00
+#define CAP_AUTH_RESULT_CR_BAD_TYPE	0x01
+#define CAP_AUTH_RESULT_CR_WRONG_EP	0x02
+#define CAP_AUTH_RESULT_CR_NO_KEY	0x03
+#define CAP_AUTH_RESULT_CR_SIG_FAIL	0x04
+
+/* IOCTL support */
+struct cap_ioc_get_endpoint_uid {
+	__u8			uid[8];
+} __packed;
+
+struct cap_ioc_get_ims_certificate {
+	__u32			certificate_class;
+	__u32			certificate_id;
+
+	__u8			result_code;
+	__u32			cert_size;
+	__u8			certificate[CAP_CERTIFICATE_MAX_SIZE];
+} __packed;
+
+struct cap_ioc_authenticate {
+	__u32			auth_type;
+	__u8			uid[8];
+	__u8			challenge[32];
+
+	__u8			result_code;
+	__u8			response[64];
+	__u32			signature_size;
+	__u8			signature[CAP_SIGNATURE_MAX_SIZE];
+} __packed;
+
+#define CAP_IOCTL_BASE			'C'
+#define CAP_IOC_GET_ENDPOINT_UID	_IOR(CAP_IOCTL_BASE, 0, struct cap_ioc_get_endpoint_uid)
+#define CAP_IOC_GET_IMS_CERTIFICATE	_IOWR(CAP_IOCTL_BASE, 1, struct cap_ioc_get_ims_certificate)
+#define CAP_IOC_AUTHENTICATE		_IOWR(CAP_IOCTL_BASE, 2, struct cap_ioc_authenticate)
+
+#endif /* __GREYBUS_AUTHENTICATION_USER_H */
diff --git a/drivers/staging/greybus/greybus_firmware.h b/drivers/staging/greybus/greybus_firmware.h
new file mode 100644
index 000000000000..b6042a82ada4
--- /dev/null
+++ b/drivers/staging/greybus/greybus_firmware.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Greybus Firmware Management User Header
+ *
+ * Copyright(c) 2016 Google Inc. All rights reserved.
+ * Copyright(c) 2016 Linaro Ltd. All rights reserved.
+ */
+
+#ifndef __GREYBUS_FIRMWARE_USER_H
+#define __GREYBUS_FIRMWARE_USER_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+#define GB_FIRMWARE_U_TAG_MAX_SIZE		10
+
+#define GB_FW_U_LOAD_METHOD_UNIPRO		0x01
+#define GB_FW_U_LOAD_METHOD_INTERNAL		0x02
+
+#define GB_FW_U_LOAD_STATUS_FAILED		0x00
+#define GB_FW_U_LOAD_STATUS_UNVALIDATED		0x01
+#define GB_FW_U_LOAD_STATUS_VALIDATED		0x02
+#define GB_FW_U_LOAD_STATUS_VALIDATION_FAILED	0x03
+
+#define GB_FW_U_BACKEND_FW_STATUS_SUCCESS	0x01
+#define GB_FW_U_BACKEND_FW_STATUS_FAIL_FIND	0x02
+#define GB_FW_U_BACKEND_FW_STATUS_FAIL_FETCH	0x03
+#define GB_FW_U_BACKEND_FW_STATUS_FAIL_WRITE	0x04
+#define GB_FW_U_BACKEND_FW_STATUS_INT		0x05
+#define GB_FW_U_BACKEND_FW_STATUS_RETRY		0x06
+#define GB_FW_U_BACKEND_FW_STATUS_NOT_SUPPORTED	0x07
+
+#define GB_FW_U_BACKEND_VERSION_STATUS_SUCCESS		0x01
+#define GB_FW_U_BACKEND_VERSION_STATUS_NOT_AVAILABLE	0x02
+#define GB_FW_U_BACKEND_VERSION_STATUS_NOT_SUPPORTED	0x03
+#define GB_FW_U_BACKEND_VERSION_STATUS_RETRY		0x04
+#define GB_FW_U_BACKEND_VERSION_STATUS_FAIL_INT		0x05
+
+/* IOCTL support */
+struct fw_mgmt_ioc_get_intf_version {
+	__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
+	__u16 major;
+	__u16 minor;
+} __packed;
+
+struct fw_mgmt_ioc_get_backend_version {
+	__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
+	__u16 major;
+	__u16 minor;
+	__u8 status;
+} __packed;
+
+struct fw_mgmt_ioc_intf_load_and_validate {
+	__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
+	__u8 load_method;
+	__u8 status;
+	__u16 major;
+	__u16 minor;
+} __packed;
+
+struct fw_mgmt_ioc_backend_fw_update {
+	__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
+	__u8 status;
+} __packed;
+
+#define FW_MGMT_IOCTL_BASE			'F'
+#define FW_MGMT_IOC_GET_INTF_FW			_IOR(FW_MGMT_IOCTL_BASE, 0, struct fw_mgmt_ioc_get_intf_version)
+#define FW_MGMT_IOC_GET_BACKEND_FW		_IOWR(FW_MGMT_IOCTL_BASE, 1, struct fw_mgmt_ioc_get_backend_version)
+#define FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE	_IOWR(FW_MGMT_IOCTL_BASE, 2, struct fw_mgmt_ioc_intf_load_and_validate)
+#define FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE	_IOWR(FW_MGMT_IOCTL_BASE, 3, struct fw_mgmt_ioc_backend_fw_update)
+#define FW_MGMT_IOC_SET_TIMEOUT_MS		_IOW(FW_MGMT_IOCTL_BASE, 4, unsigned int)
+#define FW_MGMT_IOC_MODE_SWITCH			_IO(FW_MGMT_IOCTL_BASE, 5)
+
+#endif /* __GREYBUS_FIRMWARE_USER_H */
+
diff --git a/drivers/staging/greybus/hid.c b/drivers/staging/greybus/hid.c
new file mode 100644
index 000000000000..63c77a3df591
--- /dev/null
+++ b/drivers/staging/greybus/hid.c
@@ -0,0 +1,520 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * HID class driver for the Greybus.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#include <linux/bitops.h>
+#include <linux/hid.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/greybus.h>
+
+/* Greybus HID device's structure */
+struct gb_hid {
+	struct gb_bundle *bundle;
+	struct gb_connection		*connection;
+
+	struct hid_device		*hid;
+	struct gb_hid_desc_response	hdesc;
+
+	unsigned long			flags;
+#define GB_HID_STARTED			0x01
+#define GB_HID_READ_PENDING		0x04
+
+	unsigned int			bufsize;
+	char				*inbuf;
+};
+
+/* Routines to get controller's information over greybus */
+
+/* Operations performed on greybus */
+static int gb_hid_get_desc(struct gb_hid *ghid)
+{
+	return gb_operation_sync(ghid->connection, GB_HID_TYPE_GET_DESC, NULL,
+				 0, &ghid->hdesc, sizeof(ghid->hdesc));
+}
+
+static int gb_hid_get_report_desc(struct gb_hid *ghid, char *rdesc)
+{
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(ghid->bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(ghid->connection, GB_HID_TYPE_GET_REPORT_DESC,
+				NULL, 0, rdesc,
+				le16_to_cpu(ghid->hdesc.wReportDescLength));
+
+	gb_pm_runtime_put_autosuspend(ghid->bundle);
+
+	return ret;
+}
+
+static int gb_hid_set_power(struct gb_hid *ghid, int type)
+{
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(ghid->bundle);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(ghid->connection, type, NULL, 0, NULL, 0);
+
+	gb_pm_runtime_put_autosuspend(ghid->bundle);
+
+	return ret;
+}
+
+static int gb_hid_get_report(struct gb_hid *ghid, u8 report_type, u8 report_id,
+			     unsigned char *buf, int len)
+{
+	struct gb_hid_get_report_request request;
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(ghid->bundle);
+	if (ret)
+		return ret;
+
+	request.report_type = report_type;
+	request.report_id = report_id;
+
+	ret = gb_operation_sync(ghid->connection, GB_HID_TYPE_GET_REPORT,
+				&request, sizeof(request), buf, len);
+
+	gb_pm_runtime_put_autosuspend(ghid->bundle);
+
+	return ret;
+}
+
+static int gb_hid_set_report(struct gb_hid *ghid, u8 report_type, u8 report_id,
+			     unsigned char *buf, int len)
+{
+	struct gb_hid_set_report_request *request;
+	struct gb_operation *operation;
+	int ret, size = sizeof(*request) + len - 1;
+
+	ret = gb_pm_runtime_get_sync(ghid->bundle);
+	if (ret)
+		return ret;
+
+	operation = gb_operation_create(ghid->connection,
+					GB_HID_TYPE_SET_REPORT, size, 0,
+					GFP_KERNEL);
+	if (!operation) {
+		gb_pm_runtime_put_autosuspend(ghid->bundle);
+		return -ENOMEM;
+	}
+
+	request = operation->request->payload;
+	request->report_type = report_type;
+	request->report_id = report_id;
+	memcpy(request->report, buf, len);
+
+	ret = gb_operation_request_send_sync(operation);
+	if (ret) {
+		dev_err(&operation->connection->bundle->dev,
+			"failed to set report: %d\n", ret);
+	} else {
+		ret = len;
+	}
+
+	gb_operation_put(operation);
+	gb_pm_runtime_put_autosuspend(ghid->bundle);
+
+	return ret;
+}
+
+static int gb_hid_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_hid *ghid = gb_connection_get_data(connection);
+	struct gb_hid_input_report_request *request = op->request->payload;
+
+	if (op->type != GB_HID_TYPE_IRQ_EVENT) {
+		dev_err(&connection->bundle->dev,
+			"unsupported unsolicited request\n");
+		return -EINVAL;
+	}
+
+	if (test_bit(GB_HID_STARTED, &ghid->flags))
+		hid_input_report(ghid->hid, HID_INPUT_REPORT,
+				 request->report, op->request->payload_size, 1);
+
+	return 0;
+}
+
+static int gb_hid_report_len(struct hid_report *report)
+{
+	return ((report->size - 1) >> 3) + 1 +
+		report->device->report_enum[report->type].numbered;
+}
+
+static void gb_hid_find_max_report(struct hid_device *hid, unsigned int type,
+				   unsigned int *max)
+{
+	struct hid_report *report;
+	unsigned int size;
+
+	list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
+		size = gb_hid_report_len(report);
+		if (*max < size)
+			*max = size;
+	}
+}
+
+static void gb_hid_free_buffers(struct gb_hid *ghid)
+{
+	kfree(ghid->inbuf);
+	ghid->inbuf = NULL;
+	ghid->bufsize = 0;
+}
+
+static int gb_hid_alloc_buffers(struct gb_hid *ghid, size_t bufsize)
+{
+	ghid->inbuf = kzalloc(bufsize, GFP_KERNEL);
+	if (!ghid->inbuf)
+		return -ENOMEM;
+
+	ghid->bufsize = bufsize;
+
+	return 0;
+}
+
+/* Routines dealing with reports */
+static void gb_hid_init_report(struct gb_hid *ghid, struct hid_report *report)
+{
+	unsigned int size;
+
+	size = gb_hid_report_len(report);
+	if (gb_hid_get_report(ghid, report->type, report->id, ghid->inbuf,
+			      size))
+		return;
+
+	/*
+	 * hid->driver_lock is held as we are in probe function,
+	 * we just need to setup the input fields, so using
+	 * hid_report_raw_event is safe.
+	 */
+	hid_report_raw_event(ghid->hid, report->type, ghid->inbuf, size, 1);
+}
+
+static void gb_hid_init_reports(struct gb_hid *ghid)
+{
+	struct hid_device *hid = ghid->hid;
+	struct hid_report *report;
+
+	list_for_each_entry(report,
+			    &hid->report_enum[HID_INPUT_REPORT].report_list,
+			    list)
+		gb_hid_init_report(ghid, report);
+
+	list_for_each_entry(report,
+			    &hid->report_enum[HID_FEATURE_REPORT].report_list,
+			    list)
+		gb_hid_init_report(ghid, report);
+}
+
+static int __gb_hid_get_raw_report(struct hid_device *hid,
+				   unsigned char report_number, __u8 *buf, size_t count,
+				   unsigned char report_type)
+{
+	struct gb_hid *ghid = hid->driver_data;
+	int ret;
+
+	if (report_type == HID_OUTPUT_REPORT)
+		return -EINVAL;
+
+	ret = gb_hid_get_report(ghid, report_type, report_number, buf, count);
+	if (!ret)
+		ret = count;
+
+	return ret;
+}
+
+static int __gb_hid_output_raw_report(struct hid_device *hid, __u8 *buf,
+				      size_t len, unsigned char report_type)
+{
+	struct gb_hid *ghid = hid->driver_data;
+	int report_id = buf[0];
+	int ret;
+
+	if (report_type == HID_INPUT_REPORT)
+		return -EINVAL;
+
+	if (report_id) {
+		buf++;
+		len--;
+	}
+
+	ret = gb_hid_set_report(ghid, report_type, report_id, buf, len);
+	if (report_id && ret >= 0)
+		ret++; /* add report_id to the number of transferred bytes */
+
+	return 0;
+}
+
+static int gb_hid_raw_request(struct hid_device *hid, unsigned char reportnum,
+			      __u8 *buf, size_t len, unsigned char rtype,
+			      int reqtype)
+{
+	switch (reqtype) {
+	case HID_REQ_GET_REPORT:
+		return __gb_hid_get_raw_report(hid, reportnum, buf, len, rtype);
+	case HID_REQ_SET_REPORT:
+		if (buf[0] != reportnum)
+			return -EINVAL;
+		return __gb_hid_output_raw_report(hid, buf, len, rtype);
+	default:
+		return -EIO;
+	}
+}
+
+/* HID Callbacks */
+static int gb_hid_parse(struct hid_device *hid)
+{
+	struct gb_hid *ghid = hid->driver_data;
+	unsigned int rsize;
+	char *rdesc;
+	int ret;
+
+	rsize = le16_to_cpu(ghid->hdesc.wReportDescLength);
+	if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
+		dbg_hid("weird size of report descriptor (%u)\n", rsize);
+		return -EINVAL;
+	}
+
+	rdesc = kzalloc(rsize, GFP_KERNEL);
+	if (!rdesc)
+		return -ENOMEM;
+
+	ret = gb_hid_get_report_desc(ghid, rdesc);
+	if (ret) {
+		hid_err(hid, "reading report descriptor failed\n");
+		goto free_rdesc;
+	}
+
+	ret = hid_parse_report(hid, rdesc, rsize);
+	if (ret)
+		dbg_hid("parsing report descriptor failed\n");
+
+free_rdesc:
+	kfree(rdesc);
+
+	return ret;
+}
+
+static int gb_hid_start(struct hid_device *hid)
+{
+	struct gb_hid *ghid = hid->driver_data;
+	unsigned int bufsize = HID_MIN_BUFFER_SIZE;
+	int ret;
+
+	gb_hid_find_max_report(hid, HID_INPUT_REPORT, &bufsize);
+	gb_hid_find_max_report(hid, HID_OUTPUT_REPORT, &bufsize);
+	gb_hid_find_max_report(hid, HID_FEATURE_REPORT, &bufsize);
+
+	if (bufsize > HID_MAX_BUFFER_SIZE)
+		bufsize = HID_MAX_BUFFER_SIZE;
+
+	ret = gb_hid_alloc_buffers(ghid, bufsize);
+	if (ret)
+		return ret;
+
+	if (!(hid->quirks & HID_QUIRK_NO_INIT_REPORTS))
+		gb_hid_init_reports(ghid);
+
+	return 0;
+}
+
+static void gb_hid_stop(struct hid_device *hid)
+{
+	struct gb_hid *ghid = hid->driver_data;
+
+	gb_hid_free_buffers(ghid);
+}
+
+static int gb_hid_open(struct hid_device *hid)
+{
+	struct gb_hid *ghid = hid->driver_data;
+	int ret;
+
+	ret = gb_hid_set_power(ghid, GB_HID_TYPE_PWR_ON);
+	if (ret < 0)
+		return ret;
+
+	set_bit(GB_HID_STARTED, &ghid->flags);
+	return 0;
+}
+
+static void gb_hid_close(struct hid_device *hid)
+{
+	struct gb_hid *ghid = hid->driver_data;
+	int ret;
+
+	clear_bit(GB_HID_STARTED, &ghid->flags);
+
+	/* Save some power */
+	ret = gb_hid_set_power(ghid, GB_HID_TYPE_PWR_OFF);
+	if (ret)
+		dev_err(&ghid->connection->bundle->dev,
+			"failed to power off (%d)\n", ret);
+}
+
+static int gb_hid_power(struct hid_device *hid, int lvl)
+{
+	struct gb_hid *ghid = hid->driver_data;
+
+	switch (lvl) {
+	case PM_HINT_FULLON:
+		return gb_hid_set_power(ghid, GB_HID_TYPE_PWR_ON);
+	case PM_HINT_NORMAL:
+		return gb_hid_set_power(ghid, GB_HID_TYPE_PWR_OFF);
+	}
+
+	return 0;
+}
+
+/* HID structure to pass callbacks */
+static const struct hid_ll_driver gb_hid_ll_driver = {
+	.parse = gb_hid_parse,
+	.start = gb_hid_start,
+	.stop = gb_hid_stop,
+	.open = gb_hid_open,
+	.close = gb_hid_close,
+	.power = gb_hid_power,
+	.raw_request = gb_hid_raw_request,
+};
+
+static int gb_hid_init(struct gb_hid *ghid)
+{
+	struct hid_device *hid = ghid->hid;
+	int ret;
+
+	ret = gb_hid_get_desc(ghid);
+	if (ret)
+		return ret;
+
+	hid->version = le16_to_cpu(ghid->hdesc.bcdHID);
+	hid->vendor = le16_to_cpu(ghid->hdesc.wVendorID);
+	hid->product = le16_to_cpu(ghid->hdesc.wProductID);
+	hid->country = ghid->hdesc.bCountryCode;
+
+	hid->driver_data = ghid;
+	hid->ll_driver = &gb_hid_ll_driver;
+	hid->dev.parent = &ghid->connection->bundle->dev;
+//	hid->bus = BUS_GREYBUS; /* Need a bustype for GREYBUS in <linux/input.h> */
+
+	/* Set HID device's name */
+	snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X",
+		 dev_name(&ghid->connection->bundle->dev),
+		 hid->vendor, hid->product);
+
+	return 0;
+}
+
+static int gb_hid_probe(struct gb_bundle *bundle,
+			const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct hid_device *hid;
+	struct gb_hid *ghid;
+	int ret;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_HID)
+		return -ENODEV;
+
+	ghid = kzalloc(sizeof(*ghid), GFP_KERNEL);
+	if (!ghid)
+		return -ENOMEM;
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  gb_hid_request_handler);
+	if (IS_ERR(connection)) {
+		ret = PTR_ERR(connection);
+		goto err_free_ghid;
+	}
+
+	gb_connection_set_data(connection, ghid);
+	ghid->connection = connection;
+
+	hid = hid_allocate_device();
+	if (IS_ERR(hid)) {
+		ret = PTR_ERR(hid);
+		goto err_connection_destroy;
+	}
+
+	ghid->hid = hid;
+	ghid->bundle = bundle;
+
+	greybus_set_drvdata(bundle, ghid);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto err_destroy_hid;
+
+	ret = gb_hid_init(ghid);
+	if (ret)
+		goto err_connection_disable;
+
+	ret = hid_add_device(hid);
+	if (ret) {
+		hid_err(hid, "can't add hid device: %d\n", ret);
+		goto err_connection_disable;
+	}
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+
+err_connection_disable:
+	gb_connection_disable(connection);
+err_destroy_hid:
+	hid_destroy_device(hid);
+err_connection_destroy:
+	gb_connection_destroy(connection);
+err_free_ghid:
+	kfree(ghid);
+
+	return ret;
+}
+
+static void gb_hid_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_hid *ghid = greybus_get_drvdata(bundle);
+
+	if (gb_pm_runtime_get_sync(bundle))
+		gb_pm_runtime_get_noresume(bundle);
+
+	hid_destroy_device(ghid->hid);
+	gb_connection_disable(ghid->connection);
+	gb_connection_destroy(ghid->connection);
+	kfree(ghid);
+}
+
+static const struct greybus_bundle_id gb_hid_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_HID) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_hid_id_table);
+
+static struct greybus_driver gb_hid_driver = {
+	.name		= "hid",
+	.probe		= gb_hid_probe,
+	.disconnect	= gb_hid_disconnect,
+	.id_table	= gb_hid_id_table,
+};
+module_greybus_driver(gb_hid_driver);
+
+MODULE_DESCRIPTION("HID class driver for the Greybus");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/i2c.c b/drivers/staging/greybus/i2c.c
new file mode 100644
index 000000000000..14f1ff6d448c
--- /dev/null
+++ b/drivers/staging/greybus/i2c.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * I2C bridge driver for the Greybus "generic" I2C module.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+
+struct gb_i2c_device {
+	struct gb_connection	*connection;
+	struct gbphy_device	*gbphy_dev;
+
+	u32			functionality;
+
+	struct i2c_adapter	adapter;
+};
+
+/*
+ * Map Greybus i2c functionality bits into Linux ones
+ */
+static u32 gb_i2c_functionality_map(u32 gb_i2c_functionality)
+{
+	return gb_i2c_functionality;	/* All bits the same for now */
+}
+
+/*
+ * Do initial setup of the i2c device.  This includes verifying we
+ * can support it (based on the protocol version it advertises).
+ * If that's OK, we get and cached its functionality bits.
+ *
+ * Note: gb_i2c_dev->connection is assumed to have been valid.
+ */
+static int gb_i2c_device_setup(struct gb_i2c_device *gb_i2c_dev)
+{
+	struct gb_i2c_functionality_response response;
+	u32 functionality;
+	int ret;
+
+	ret = gb_operation_sync(gb_i2c_dev->connection,
+				GB_I2C_TYPE_FUNCTIONALITY,
+				NULL, 0, &response, sizeof(response));
+	if (ret)
+		return ret;
+
+	functionality = le32_to_cpu(response.functionality);
+	gb_i2c_dev->functionality = gb_i2c_functionality_map(functionality);
+
+	return 0;
+}
+
+/*
+ * Map Linux i2c_msg flags into Greybus i2c transfer op flags.
+ */
+static u16 gb_i2c_transfer_op_flags_map(u16 flags)
+{
+	return flags;	/* All flags the same for now */
+}
+
+static void
+gb_i2c_fill_transfer_op(struct gb_i2c_transfer_op *op, struct i2c_msg *msg)
+{
+	u16 flags = gb_i2c_transfer_op_flags_map(msg->flags);
+
+	op->addr = cpu_to_le16(msg->addr);
+	op->flags = cpu_to_le16(flags);
+	op->size = cpu_to_le16(msg->len);
+}
+
+static struct gb_operation *
+gb_i2c_operation_create(struct gb_connection *connection,
+			struct i2c_msg *msgs, u32 msg_count)
+{
+	struct gb_i2c_device *gb_i2c_dev = gb_connection_get_data(connection);
+	struct gb_i2c_transfer_request *request;
+	struct gb_operation *operation;
+	struct gb_i2c_transfer_op *op;
+	struct i2c_msg *msg;
+	u32 data_out_size = 0;
+	u32 data_in_size = 0;
+	size_t request_size;
+	void *data;
+	u16 op_count;
+	u32 i;
+
+	if (msg_count > (u32)U16_MAX) {
+		dev_err(&gb_i2c_dev->gbphy_dev->dev, "msg_count (%u) too big\n",
+			msg_count);
+		return NULL;
+	}
+	op_count = (u16)msg_count;
+
+	/*
+	 * In addition to space for all message descriptors we need
+	 * to have enough to hold all outbound message data.
+	 */
+	msg = msgs;
+	for (i = 0; i < msg_count; i++, msg++)
+		if (msg->flags & I2C_M_RD)
+			data_in_size += (u32)msg->len;
+		else
+			data_out_size += (u32)msg->len;
+
+	request_size = sizeof(*request);
+	request_size += msg_count * sizeof(*op);
+	request_size += data_out_size;
+
+	/* Response consists only of incoming data */
+	operation = gb_operation_create(connection, GB_I2C_TYPE_TRANSFER,
+					request_size, data_in_size, GFP_KERNEL);
+	if (!operation)
+		return NULL;
+
+	request = operation->request->payload;
+	request->op_count = cpu_to_le16(op_count);
+	/* Fill in the ops array */
+	op = &request->ops[0];
+	msg = msgs;
+	for (i = 0; i < msg_count; i++)
+		gb_i2c_fill_transfer_op(op++, msg++);
+
+	if (!data_out_size)
+		return operation;
+
+	/* Copy over the outgoing data; it starts after the last op */
+	data = op;
+	msg = msgs;
+	for (i = 0; i < msg_count; i++) {
+		if (!(msg->flags & I2C_M_RD)) {
+			memcpy(data, msg->buf, msg->len);
+			data += msg->len;
+		}
+		msg++;
+	}
+
+	return operation;
+}
+
+static void gb_i2c_decode_response(struct i2c_msg *msgs, u32 msg_count,
+				   struct gb_i2c_transfer_response *response)
+{
+	struct i2c_msg *msg = msgs;
+	u8 *data;
+	u32 i;
+
+	if (!response)
+		return;
+	data = response->data;
+	for (i = 0; i < msg_count; i++) {
+		if (msg->flags & I2C_M_RD) {
+			memcpy(msg->buf, data, msg->len);
+			data += msg->len;
+		}
+		msg++;
+	}
+}
+
+/*
+ * Some i2c transfer operations return results that are expected.
+ */
+static bool gb_i2c_expected_transfer_error(int errno)
+{
+	return errno == -EAGAIN || errno == -ENODEV;
+}
+
+static int gb_i2c_transfer_operation(struct gb_i2c_device *gb_i2c_dev,
+				     struct i2c_msg *msgs, u32 msg_count)
+{
+	struct gb_connection *connection = gb_i2c_dev->connection;
+	struct device *dev = &gb_i2c_dev->gbphy_dev->dev;
+	struct gb_operation *operation;
+	int ret;
+
+	operation = gb_i2c_operation_create(connection, msgs, msg_count);
+	if (!operation)
+		return -ENOMEM;
+
+	ret = gbphy_runtime_get_sync(gb_i2c_dev->gbphy_dev);
+	if (ret)
+		goto exit_operation_put;
+
+	ret = gb_operation_request_send_sync(operation);
+	if (!ret) {
+		struct gb_i2c_transfer_response *response;
+
+		response = operation->response->payload;
+		gb_i2c_decode_response(msgs, msg_count, response);
+		ret = msg_count;
+	} else if (!gb_i2c_expected_transfer_error(ret)) {
+		dev_err(dev, "transfer operation failed (%d)\n", ret);
+	}
+
+	gbphy_runtime_put_autosuspend(gb_i2c_dev->gbphy_dev);
+
+exit_operation_put:
+	gb_operation_put(operation);
+
+	return ret;
+}
+
+static int gb_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
+			      int msg_count)
+{
+	struct gb_i2c_device *gb_i2c_dev;
+
+	gb_i2c_dev = i2c_get_adapdata(adap);
+
+	return gb_i2c_transfer_operation(gb_i2c_dev, msgs, msg_count);
+}
+
+static u32 gb_i2c_functionality(struct i2c_adapter *adap)
+{
+	struct gb_i2c_device *gb_i2c_dev = i2c_get_adapdata(adap);
+
+	return gb_i2c_dev->functionality;
+}
+
+static const struct i2c_algorithm gb_i2c_algorithm = {
+	.master_xfer	= gb_i2c_master_xfer,
+	.functionality	= gb_i2c_functionality,
+};
+
+static int gb_i2c_probe(struct gbphy_device *gbphy_dev,
+			const struct gbphy_device_id *id)
+{
+	struct gb_connection *connection;
+	struct gb_i2c_device *gb_i2c_dev;
+	struct i2c_adapter *adapter;
+	int ret;
+
+	gb_i2c_dev = kzalloc(sizeof(*gb_i2c_dev), GFP_KERNEL);
+	if (!gb_i2c_dev)
+		return -ENOMEM;
+
+	connection =
+		gb_connection_create(gbphy_dev->bundle,
+				     le16_to_cpu(gbphy_dev->cport_desc->id),
+				     NULL);
+	if (IS_ERR(connection)) {
+		ret = PTR_ERR(connection);
+		goto exit_i2cdev_free;
+	}
+
+	gb_i2c_dev->connection = connection;
+	gb_connection_set_data(connection, gb_i2c_dev);
+	gb_i2c_dev->gbphy_dev = gbphy_dev;
+	gb_gbphy_set_data(gbphy_dev, gb_i2c_dev);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto exit_connection_destroy;
+
+	ret = gb_i2c_device_setup(gb_i2c_dev);
+	if (ret)
+		goto exit_connection_disable;
+
+	/* Looks good; up our i2c adapter */
+	adapter = &gb_i2c_dev->adapter;
+	adapter->owner = THIS_MODULE;
+	adapter->class = I2C_CLASS_HWMON;
+	adapter->algo = &gb_i2c_algorithm;
+
+	adapter->dev.parent = &gbphy_dev->dev;
+	snprintf(adapter->name, sizeof(adapter->name), "Greybus i2c adapter");
+	i2c_set_adapdata(adapter, gb_i2c_dev);
+
+	ret = i2c_add_adapter(adapter);
+	if (ret)
+		goto exit_connection_disable;
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+	return 0;
+
+exit_connection_disable:
+	gb_connection_disable(connection);
+exit_connection_destroy:
+	gb_connection_destroy(connection);
+exit_i2cdev_free:
+	kfree(gb_i2c_dev);
+
+	return ret;
+}
+
+static void gb_i2c_remove(struct gbphy_device *gbphy_dev)
+{
+	struct gb_i2c_device *gb_i2c_dev = gb_gbphy_get_data(gbphy_dev);
+	struct gb_connection *connection = gb_i2c_dev->connection;
+	int ret;
+
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		gbphy_runtime_get_noresume(gbphy_dev);
+
+	i2c_del_adapter(&gb_i2c_dev->adapter);
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+	kfree(gb_i2c_dev);
+}
+
+static const struct gbphy_device_id gb_i2c_id_table[] = {
+	{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_I2C) },
+	{ },
+};
+MODULE_DEVICE_TABLE(gbphy, gb_i2c_id_table);
+
+static struct gbphy_driver i2c_driver = {
+	.name		= "i2c",
+	.probe		= gb_i2c_probe,
+	.remove		= gb_i2c_remove,
+	.id_table	= gb_i2c_id_table,
+};
+
+module_gbphy_driver(i2c_driver);
+MODULE_DESCRIPTION("I2C bridge driver for the Greybus 'generic' I2C module");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c
new file mode 100644
index 000000000000..e509fdc715db
--- /dev/null
+++ b/drivers/staging/greybus/light.c
@@ -0,0 +1,1343 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Lights protocol driver.
+ *
+ * Copyright 2015 Google Inc.
+ * Copyright 2015 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/leds.h>
+#include <linux/led-class-flash.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/greybus.h>
+#include <media/v4l2-flash-led-class.h>
+
+#define NAMES_MAX	32
+
+struct gb_channel {
+	u8				id;
+	u32				flags;
+	u32				color;
+	char				*color_name;
+	u8				fade_in;
+	u8				fade_out;
+	u32				mode;
+	char				*mode_name;
+	struct attribute		**attrs;
+	struct attribute_group		*attr_group;
+	const struct attribute_group	**attr_groups;
+	struct led_classdev		*led;
+	struct led_classdev_flash	fled;
+	struct led_flash_setting	intensity_uA;
+	struct led_flash_setting	timeout_us;
+	struct gb_light			*light;
+	bool				is_registered;
+	bool				releasing;
+	bool				strobe_state;
+	bool				active;
+	struct mutex			lock;
+};
+
+struct gb_light {
+	u8			id;
+	char			*name;
+	struct gb_lights	*glights;
+	u32			flags;
+	u8			channels_count;
+	struct gb_channel	*channels;
+	bool			has_flash;
+	bool			ready;
+#if IS_REACHABLE(CONFIG_V4L2_FLASH_LED_CLASS)
+	struct v4l2_flash	*v4l2_flash;
+	struct v4l2_flash	*v4l2_flash_ind;
+#endif
+};
+
+struct gb_lights {
+	struct gb_connection	*connection;
+	u8			lights_count;
+	struct gb_light		*lights;
+	struct mutex		lights_lock;
+};
+
+static void gb_lights_channel_free(struct gb_channel *channel);
+
+static struct gb_connection *get_conn_from_channel(struct gb_channel *channel)
+{
+	return channel->light->glights->connection;
+}
+
+static struct gb_connection *get_conn_from_light(struct gb_light *light)
+{
+	return light->glights->connection;
+}
+
+static bool is_channel_flash(struct gb_channel *channel)
+{
+	return !!(channel->mode & (GB_CHANNEL_MODE_FLASH | GB_CHANNEL_MODE_TORCH
+				   | GB_CHANNEL_MODE_INDICATOR));
+}
+
+static struct gb_channel *get_channel_from_cdev(struct led_classdev *cdev)
+{
+	struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(cdev);
+
+	return container_of(fled_cdev, struct gb_channel, fled);
+}
+
+static struct led_classdev *get_channel_cdev(struct gb_channel *channel)
+{
+	return &channel->fled.led_cdev;
+}
+
+static struct gb_channel *get_channel_from_mode(struct gb_light *light,
+						u32 mode)
+{
+	struct gb_channel *channel;
+	int i;
+
+	for (i = 0; i < light->channels_count; i++) {
+		channel = &light->channels[i];
+		if (channel->mode == mode)
+			return channel;
+	}
+	return NULL;
+}
+
+static int __gb_lights_flash_intensity_set(struct gb_channel *channel,
+					   u32 intensity)
+{
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	struct gb_lights_set_flash_intensity_request req;
+	int ret;
+
+	if (channel->releasing)
+		return -ESHUTDOWN;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		return ret;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+	req.intensity_uA = cpu_to_le32(intensity);
+
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_SET_FLASH_INTENSITY,
+				&req, sizeof(req), NULL, 0);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static int __gb_lights_flash_brightness_set(struct gb_channel *channel)
+{
+	u32 intensity;
+
+	/* If the channel is flash we need to get the attached torch channel */
+	if (channel->mode & GB_CHANNEL_MODE_FLASH)
+		channel = get_channel_from_mode(channel->light,
+						GB_CHANNEL_MODE_TORCH);
+
+	if (!channel)
+		return -EINVAL;
+
+	/* For not flash we need to convert brightness to intensity */
+	intensity = channel->intensity_uA.min +
+			(channel->intensity_uA.step * channel->led->brightness);
+
+	return __gb_lights_flash_intensity_set(channel, intensity);
+}
+
+static int gb_lights_color_set(struct gb_channel *channel, u32 color);
+static int gb_lights_fade_set(struct gb_channel *channel);
+
+static void led_lock(struct led_classdev *cdev)
+{
+	mutex_lock(&cdev->led_access);
+}
+
+static void led_unlock(struct led_classdev *cdev)
+{
+	mutex_unlock(&cdev->led_access);
+}
+
+#define gb_lights_fade_attr(__dir)					\
+static ssize_t fade_##__dir##_show(struct device *dev,			\
+				   struct device_attribute *attr,	\
+				   char *buf)				\
+{									\
+	struct led_classdev *cdev = dev_get_drvdata(dev);		\
+	struct gb_channel *channel = get_channel_from_cdev(cdev);	\
+									\
+	return sprintf(buf, "%u\n", channel->fade_##__dir);		\
+}									\
+									\
+static ssize_t fade_##__dir##_store(struct device *dev,			\
+				    struct device_attribute *attr,	\
+				    const char *buf, size_t size)	\
+{									\
+	struct led_classdev *cdev = dev_get_drvdata(dev);		\
+	struct gb_channel *channel = get_channel_from_cdev(cdev);	\
+	u8 fade;							\
+	int ret;							\
+									\
+	led_lock(cdev);							\
+	if (led_sysfs_is_disabled(cdev)) {				\
+		ret = -EBUSY;						\
+		goto unlock;						\
+	}								\
+									\
+	ret = kstrtou8(buf, 0, &fade);					\
+	if (ret < 0) {							\
+		dev_err(dev, "could not parse fade value %d\n", ret);	\
+		goto unlock;						\
+	}								\
+	if (channel->fade_##__dir == fade)				\
+		goto unlock;						\
+	channel->fade_##__dir = fade;					\
+									\
+	ret = gb_lights_fade_set(channel);				\
+	if (ret < 0)							\
+		goto unlock;						\
+									\
+	ret = size;							\
+unlock:									\
+	led_unlock(cdev);						\
+	return ret;							\
+}									\
+static DEVICE_ATTR_RW(fade_##__dir)
+
+gb_lights_fade_attr(in);
+gb_lights_fade_attr(out);
+
+static ssize_t color_show(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct led_classdev *cdev = dev_get_drvdata(dev);
+	struct gb_channel *channel = get_channel_from_cdev(cdev);
+
+	return sprintf(buf, "0x%08x\n", channel->color);
+}
+
+static ssize_t color_store(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t size)
+{
+	struct led_classdev *cdev = dev_get_drvdata(dev);
+	struct gb_channel *channel = get_channel_from_cdev(cdev);
+	u32 color;
+	int ret;
+
+	led_lock(cdev);
+	if (led_sysfs_is_disabled(cdev)) {
+		ret = -EBUSY;
+		goto unlock;
+	}
+	ret = kstrtou32(buf, 0, &color);
+	if (ret < 0) {
+		dev_err(dev, "could not parse color value %d\n", ret);
+		goto unlock;
+	}
+
+	ret = gb_lights_color_set(channel, color);
+	if (ret < 0)
+		goto unlock;
+
+	channel->color = color;
+	ret = size;
+unlock:
+	led_unlock(cdev);
+	return ret;
+}
+static DEVICE_ATTR_RW(color);
+
+static int channel_attr_groups_set(struct gb_channel *channel,
+				   struct led_classdev *cdev)
+{
+	int attr = 0;
+	int size = 0;
+
+	if (channel->flags & GB_LIGHT_CHANNEL_MULTICOLOR)
+		size++;
+	if (channel->flags & GB_LIGHT_CHANNEL_FADER)
+		size += 2;
+
+	if (!size)
+		return 0;
+
+	/* Set attributes based in the channel flags */
+	channel->attrs = kcalloc(size + 1, sizeof(*channel->attrs), GFP_KERNEL);
+	if (!channel->attrs)
+		return -ENOMEM;
+	channel->attr_group = kzalloc(sizeof(*channel->attr_group), GFP_KERNEL);
+	if (!channel->attr_group)
+		return -ENOMEM;
+	channel->attr_groups = kcalloc(2, sizeof(*channel->attr_groups),
+				       GFP_KERNEL);
+	if (!channel->attr_groups)
+		return -ENOMEM;
+
+	if (channel->flags & GB_LIGHT_CHANNEL_MULTICOLOR)
+		channel->attrs[attr++] = &dev_attr_color.attr;
+	if (channel->flags & GB_LIGHT_CHANNEL_FADER) {
+		channel->attrs[attr++] = &dev_attr_fade_in.attr;
+		channel->attrs[attr++] = &dev_attr_fade_out.attr;
+	}
+
+	channel->attr_group->attrs = channel->attrs;
+
+	channel->attr_groups[0] = channel->attr_group;
+
+	cdev->groups = channel->attr_groups;
+
+	return 0;
+}
+
+static int gb_lights_fade_set(struct gb_channel *channel)
+{
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	struct gb_lights_set_fade_request req;
+	int ret;
+
+	if (channel->releasing)
+		return -ESHUTDOWN;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		return ret;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+	req.fade_in = channel->fade_in;
+	req.fade_out = channel->fade_out;
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_SET_FADE,
+				&req, sizeof(req), NULL, 0);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static int gb_lights_color_set(struct gb_channel *channel, u32 color)
+{
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	struct gb_lights_set_color_request req;
+	int ret;
+
+	if (channel->releasing)
+		return -ESHUTDOWN;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		return ret;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+	req.color = cpu_to_le32(color);
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_SET_COLOR,
+				&req, sizeof(req), NULL, 0);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static int __gb_lights_led_brightness_set(struct gb_channel *channel)
+{
+	struct gb_lights_set_brightness_request req;
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	bool old_active;
+	int ret;
+
+	mutex_lock(&channel->lock);
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		goto out_unlock;
+
+	old_active = channel->active;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+	req.brightness = (u8)channel->led->brightness;
+
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_SET_BRIGHTNESS,
+				&req, sizeof(req), NULL, 0);
+	if (ret < 0)
+		goto out_pm_put;
+
+	if (channel->led->brightness)
+		channel->active = true;
+	else
+		channel->active = false;
+
+	/* we need to keep module alive when turning to active state */
+	if (!old_active && channel->active)
+		goto out_unlock;
+
+	/*
+	 * on the other hand if going to inactive we still hold a reference and
+	 * need to put it, so we could go to suspend.
+	 */
+	if (old_active && !channel->active)
+		gb_pm_runtime_put_autosuspend(bundle);
+
+out_pm_put:
+	gb_pm_runtime_put_autosuspend(bundle);
+out_unlock:
+	mutex_unlock(&channel->lock);
+
+	return ret;
+}
+
+static int __gb_lights_brightness_set(struct gb_channel *channel)
+{
+	int ret;
+
+	if (channel->releasing)
+		return 0;
+
+	if (is_channel_flash(channel))
+		ret = __gb_lights_flash_brightness_set(channel);
+	else
+		ret = __gb_lights_led_brightness_set(channel);
+
+	return ret;
+}
+
+static int gb_brightness_set(struct led_classdev *cdev,
+			     enum led_brightness value)
+{
+	struct gb_channel *channel = get_channel_from_cdev(cdev);
+
+	channel->led->brightness = value;
+
+	return __gb_lights_brightness_set(channel);
+}
+
+static enum led_brightness gb_brightness_get(struct led_classdev *cdev)
+
+{
+	struct gb_channel *channel = get_channel_from_cdev(cdev);
+
+	return channel->led->brightness;
+}
+
+static int gb_blink_set(struct led_classdev *cdev, unsigned long *delay_on,
+			unsigned long *delay_off)
+{
+	struct gb_channel *channel = get_channel_from_cdev(cdev);
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	struct gb_lights_blink_request req;
+	bool old_active;
+	int ret;
+
+	if (channel->releasing)
+		return -ESHUTDOWN;
+
+	if (!delay_on || !delay_off)
+		return -EINVAL;
+
+	mutex_lock(&channel->lock);
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		goto out_unlock;
+
+	old_active = channel->active;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+	req.time_on_ms = cpu_to_le16(*delay_on);
+	req.time_off_ms = cpu_to_le16(*delay_off);
+
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_SET_BLINK, &req,
+				sizeof(req), NULL, 0);
+	if (ret < 0)
+		goto out_pm_put;
+
+	if (*delay_on)
+		channel->active = true;
+	else
+		channel->active = false;
+
+	/* we need to keep module alive when turning to active state */
+	if (!old_active && channel->active)
+		goto out_unlock;
+
+	/*
+	 * on the other hand if going to inactive we still hold a reference and
+	 * need to put it, so we could go to suspend.
+	 */
+	if (old_active && !channel->active)
+		gb_pm_runtime_put_autosuspend(bundle);
+
+out_pm_put:
+	gb_pm_runtime_put_autosuspend(bundle);
+out_unlock:
+	mutex_unlock(&channel->lock);
+
+	return ret;
+}
+
+static void gb_lights_led_operations_set(struct gb_channel *channel,
+					 struct led_classdev *cdev)
+{
+	cdev->brightness_get = gb_brightness_get;
+	cdev->brightness_set_blocking = gb_brightness_set;
+
+	if (channel->flags & GB_LIGHT_CHANNEL_BLINK)
+		cdev->blink_set = gb_blink_set;
+}
+
+#if IS_REACHABLE(CONFIG_V4L2_FLASH_LED_CLASS)
+/* V4L2 specific helpers */
+static const struct v4l2_flash_ops v4l2_flash_ops;
+
+static void __gb_lights_channel_v4l2_config(struct led_flash_setting *channel_s,
+					    struct led_flash_setting *v4l2_s)
+{
+	v4l2_s->min = channel_s->min;
+	v4l2_s->max = channel_s->max;
+	v4l2_s->step = channel_s->step;
+	/* For v4l2 val is the default value */
+	v4l2_s->val = channel_s->max;
+}
+
+static int gb_lights_light_v4l2_register(struct gb_light *light)
+{
+	struct gb_connection *connection = get_conn_from_light(light);
+	struct device *dev = &connection->bundle->dev;
+	struct v4l2_flash_config sd_cfg = { {0} }, sd_cfg_ind = { {0} };
+	struct led_classdev_flash *fled;
+	struct led_classdev *iled = NULL;
+	struct gb_channel *channel_torch, *channel_ind, *channel_flash;
+
+	channel_torch = get_channel_from_mode(light, GB_CHANNEL_MODE_TORCH);
+	if (channel_torch)
+		__gb_lights_channel_v4l2_config(&channel_torch->intensity_uA,
+						&sd_cfg.intensity);
+
+	channel_ind = get_channel_from_mode(light, GB_CHANNEL_MODE_INDICATOR);
+	if (channel_ind) {
+		__gb_lights_channel_v4l2_config(&channel_ind->intensity_uA,
+						&sd_cfg_ind.intensity);
+		iled = &channel_ind->fled.led_cdev;
+	}
+
+	channel_flash = get_channel_from_mode(light, GB_CHANNEL_MODE_FLASH);
+	if (!channel_flash) {
+		dev_err(dev, "failed to get flash channel from mode\n");
+		return -EINVAL;
+	}
+
+	fled = &channel_flash->fled;
+
+	snprintf(sd_cfg.dev_name, sizeof(sd_cfg.dev_name), "%s", light->name);
+	snprintf(sd_cfg_ind.dev_name, sizeof(sd_cfg_ind.dev_name),
+		 "%s indicator", light->name);
+
+	/* Set the possible values to faults, in our case all faults */
+	sd_cfg.flash_faults = LED_FAULT_OVER_VOLTAGE | LED_FAULT_TIMEOUT |
+		LED_FAULT_OVER_TEMPERATURE | LED_FAULT_SHORT_CIRCUIT |
+		LED_FAULT_OVER_CURRENT | LED_FAULT_INDICATOR |
+		LED_FAULT_UNDER_VOLTAGE | LED_FAULT_INPUT_VOLTAGE |
+		LED_FAULT_LED_OVER_TEMPERATURE;
+
+	light->v4l2_flash = v4l2_flash_init(dev, NULL, fled, &v4l2_flash_ops,
+					    &sd_cfg);
+	if (IS_ERR(light->v4l2_flash))
+		return PTR_ERR(light->v4l2_flash);
+
+	if (channel_ind) {
+		light->v4l2_flash_ind =
+			v4l2_flash_indicator_init(dev, NULL, iled, &sd_cfg_ind);
+		if (IS_ERR(light->v4l2_flash_ind)) {
+			v4l2_flash_release(light->v4l2_flash);
+			return PTR_ERR(light->v4l2_flash_ind);
+		}
+	}
+
+	return 0;
+}
+
+static void gb_lights_light_v4l2_unregister(struct gb_light *light)
+{
+	v4l2_flash_release(light->v4l2_flash_ind);
+	v4l2_flash_release(light->v4l2_flash);
+}
+#else
+static int gb_lights_light_v4l2_register(struct gb_light *light)
+{
+	struct gb_connection *connection = get_conn_from_light(light);
+
+	dev_err(&connection->bundle->dev, "no support for v4l2 subdevices\n");
+	return 0;
+}
+
+static void gb_lights_light_v4l2_unregister(struct gb_light *light)
+{
+}
+#endif
+
+#if IS_REACHABLE(CONFIG_LEDS_CLASS_FLASH)
+/* Flash specific operations */
+static int gb_lights_flash_intensity_set(struct led_classdev_flash *fcdev,
+					 u32 brightness)
+{
+	struct gb_channel *channel = container_of(fcdev, struct gb_channel,
+						  fled);
+	int ret;
+
+	ret = __gb_lights_flash_intensity_set(channel, brightness);
+	if (ret < 0)
+		return ret;
+
+	fcdev->brightness.val = brightness;
+
+	return 0;
+}
+
+static int gb_lights_flash_intensity_get(struct led_classdev_flash *fcdev,
+					 u32 *brightness)
+{
+	*brightness = fcdev->brightness.val;
+
+	return 0;
+}
+
+static int gb_lights_flash_strobe_set(struct led_classdev_flash *fcdev,
+				      bool state)
+{
+	struct gb_channel *channel = container_of(fcdev, struct gb_channel,
+						  fled);
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	struct gb_lights_set_flash_strobe_request req;
+	int ret;
+
+	if (channel->releasing)
+		return -ESHUTDOWN;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		return ret;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+	req.state = state ? 1 : 0;
+
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_SET_FLASH_STROBE,
+				&req, sizeof(req), NULL, 0);
+	if (!ret)
+		channel->strobe_state = state;
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static int gb_lights_flash_strobe_get(struct led_classdev_flash *fcdev,
+				      bool *state)
+{
+	struct gb_channel *channel = container_of(fcdev, struct gb_channel,
+						  fled);
+
+	*state = channel->strobe_state;
+	return 0;
+}
+
+static int gb_lights_flash_timeout_set(struct led_classdev_flash *fcdev,
+				       u32 timeout)
+{
+	struct gb_channel *channel = container_of(fcdev, struct gb_channel,
+						  fled);
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	struct gb_lights_set_flash_timeout_request req;
+	int ret;
+
+	if (channel->releasing)
+		return -ESHUTDOWN;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		return ret;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+	req.timeout_us = cpu_to_le32(timeout);
+
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_SET_FLASH_TIMEOUT,
+				&req, sizeof(req), NULL, 0);
+	if (!ret)
+		fcdev->timeout.val = timeout;
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static int gb_lights_flash_fault_get(struct led_classdev_flash *fcdev,
+				     u32 *fault)
+{
+	struct gb_channel *channel = container_of(fcdev, struct gb_channel,
+						  fled);
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_bundle *bundle = connection->bundle;
+	struct gb_lights_get_flash_fault_request req;
+	struct gb_lights_get_flash_fault_response resp;
+	int ret;
+
+	if (channel->releasing)
+		return -ESHUTDOWN;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret < 0)
+		return ret;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_GET_FLASH_FAULT,
+				&req, sizeof(req), &resp, sizeof(resp));
+	if (!ret)
+		*fault = le32_to_cpu(resp.fault);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static const struct led_flash_ops gb_lights_flash_ops = {
+	.flash_brightness_set	= gb_lights_flash_intensity_set,
+	.flash_brightness_get	= gb_lights_flash_intensity_get,
+	.strobe_set		= gb_lights_flash_strobe_set,
+	.strobe_get		= gb_lights_flash_strobe_get,
+	.timeout_set		= gb_lights_flash_timeout_set,
+	.fault_get		= gb_lights_flash_fault_get,
+};
+
+static int __gb_lights_channel_torch_attach(struct gb_channel *channel,
+					    struct gb_channel *channel_torch)
+{
+	char *name;
+
+	/* we can only attach torch to a flash channel */
+	if (!(channel->mode & GB_CHANNEL_MODE_FLASH))
+		return 0;
+
+	/* Move torch brightness to the destination */
+	channel->led->max_brightness = channel_torch->led->max_brightness;
+
+	/* append mode name to flash name */
+	name = kasprintf(GFP_KERNEL, "%s_%s", channel->led->name,
+			 channel_torch->mode_name);
+	if (!name)
+		return -ENOMEM;
+	kfree(channel->led->name);
+	channel->led->name = name;
+
+	channel_torch->led = channel->led;
+
+	return 0;
+}
+
+static int __gb_lights_flash_led_register(struct gb_channel *channel)
+{
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct led_classdev_flash *fled = &channel->fled;
+	struct led_flash_setting *fset;
+	struct gb_channel *channel_torch;
+	int ret;
+
+	fled->ops = &gb_lights_flash_ops;
+
+	fled->led_cdev.flags |= LED_DEV_CAP_FLASH;
+
+	fset = &fled->brightness;
+	fset->min = channel->intensity_uA.min;
+	fset->max = channel->intensity_uA.max;
+	fset->step = channel->intensity_uA.step;
+	fset->val = channel->intensity_uA.max;
+
+	/* Only the flash mode have the timeout constraints settings */
+	if (channel->mode & GB_CHANNEL_MODE_FLASH) {
+		fset = &fled->timeout;
+		fset->min = channel->timeout_us.min;
+		fset->max = channel->timeout_us.max;
+		fset->step = channel->timeout_us.step;
+		fset->val = channel->timeout_us.max;
+	}
+
+	/*
+	 * If light have torch mode channel, this channel will be the led
+	 * classdev of the registered above flash classdev
+	 */
+	channel_torch = get_channel_from_mode(channel->light,
+					      GB_CHANNEL_MODE_TORCH);
+	if (channel_torch) {
+		ret = __gb_lights_channel_torch_attach(channel, channel_torch);
+		if (ret < 0)
+			goto fail;
+	}
+
+	ret = led_classdev_flash_register(&connection->bundle->dev, fled);
+	if (ret < 0)
+		goto fail;
+
+	channel->is_registered = true;
+	return 0;
+fail:
+	channel->led = NULL;
+	return ret;
+}
+
+static void __gb_lights_flash_led_unregister(struct gb_channel *channel)
+{
+	if (!channel->is_registered)
+		return;
+
+	led_classdev_flash_unregister(&channel->fled);
+}
+
+static int gb_lights_channel_flash_config(struct gb_channel *channel)
+{
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct gb_lights_get_channel_flash_config_request req;
+	struct gb_lights_get_channel_flash_config_response conf;
+	struct led_flash_setting *fset;
+	int ret;
+
+	req.light_id = channel->light->id;
+	req.channel_id = channel->id;
+
+	ret = gb_operation_sync(connection,
+				GB_LIGHTS_TYPE_GET_CHANNEL_FLASH_CONFIG,
+				&req, sizeof(req), &conf, sizeof(conf));
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Intensity constraints for flash related modes: flash, torch,
+	 * indicator.  They will be needed for v4l2 registration.
+	 */
+	fset = &channel->intensity_uA;
+	fset->min = le32_to_cpu(conf.intensity_min_uA);
+	fset->max = le32_to_cpu(conf.intensity_max_uA);
+	fset->step = le32_to_cpu(conf.intensity_step_uA);
+
+	/*
+	 * On flash type, max brightness is set as the number of intensity steps
+	 * available.
+	 */
+	channel->led->max_brightness = (fset->max - fset->min) / fset->step;
+
+	/* Only the flash mode have the timeout constraints settings */
+	if (channel->mode & GB_CHANNEL_MODE_FLASH) {
+		fset = &channel->timeout_us;
+		fset->min = le32_to_cpu(conf.timeout_min_us);
+		fset->max = le32_to_cpu(conf.timeout_max_us);
+		fset->step = le32_to_cpu(conf.timeout_step_us);
+	}
+
+	return 0;
+}
+#else
+static int gb_lights_channel_flash_config(struct gb_channel *channel)
+{
+	struct gb_connection *connection = get_conn_from_channel(channel);
+
+	dev_err(&connection->bundle->dev, "no support for flash devices\n");
+	return 0;
+}
+
+static int __gb_lights_flash_led_register(struct gb_channel *channel)
+{
+	return 0;
+}
+
+static void __gb_lights_flash_led_unregister(struct gb_channel *channel)
+{
+}
+
+#endif
+
+static int __gb_lights_led_register(struct gb_channel *channel)
+{
+	struct gb_connection *connection = get_conn_from_channel(channel);
+	struct led_classdev *cdev = get_channel_cdev(channel);
+	int ret;
+
+	ret = led_classdev_register(&connection->bundle->dev, cdev);
+	if (ret < 0)
+		channel->led = NULL;
+	else
+		channel->is_registered = true;
+	return ret;
+}
+
+static int gb_lights_channel_register(struct gb_channel *channel)
+{
+	/* Normal LED channel, just register in led classdev and we are done */
+	if (!is_channel_flash(channel))
+		return __gb_lights_led_register(channel);
+
+	/*
+	 * Flash Type need more work, register flash classdev, indicator as
+	 * flash classdev, torch will be led classdev of the flash classdev.
+	 */
+	if (!(channel->mode & GB_CHANNEL_MODE_TORCH))
+		return __gb_lights_flash_led_register(channel);
+
+	return 0;
+}
+
+static void __gb_lights_led_unregister(struct gb_channel *channel)
+{
+	struct led_classdev *cdev = get_channel_cdev(channel);
+
+	if (!channel->is_registered)
+		return;
+
+	led_classdev_unregister(cdev);
+	kfree(cdev->name);
+	cdev->name = NULL;
+	channel->led = NULL;
+}
+
+static void gb_lights_channel_unregister(struct gb_channel *channel)
+{
+	/* The same as register, handle channels differently */
+	if (!is_channel_flash(channel)) {
+		__gb_lights_led_unregister(channel);
+		return;
+	}
+
+	if (channel->mode & GB_CHANNEL_MODE_TORCH)
+		__gb_lights_led_unregister(channel);
+	else
+		__gb_lights_flash_led_unregister(channel);
+}
+
+static int gb_lights_channel_config(struct gb_light *light,
+				    struct gb_channel *channel)
+{
+	struct gb_lights_get_channel_config_response conf;
+	struct gb_lights_get_channel_config_request req;
+	struct gb_connection *connection = get_conn_from_light(light);
+	struct led_classdev *cdev = get_channel_cdev(channel);
+	char *name;
+	int ret;
+
+	req.light_id = light->id;
+	req.channel_id = channel->id;
+
+	ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_GET_CHANNEL_CONFIG,
+				&req, sizeof(req), &conf, sizeof(conf));
+	if (ret < 0)
+		return ret;
+
+	channel->light = light;
+	channel->mode = le32_to_cpu(conf.mode);
+	channel->flags = le32_to_cpu(conf.flags);
+	channel->color = le32_to_cpu(conf.color);
+	channel->color_name = kstrndup(conf.color_name, NAMES_MAX, GFP_KERNEL);
+	if (!channel->color_name)
+		return -ENOMEM;
+	channel->mode_name = kstrndup(conf.mode_name, NAMES_MAX, GFP_KERNEL);
+	if (!channel->mode_name)
+		return -ENOMEM;
+
+	channel->led = cdev;
+
+	name = kasprintf(GFP_KERNEL, "%s:%s:%s", light->name,
+			 channel->color_name, channel->mode_name);
+	if (!name)
+		return -ENOMEM;
+
+	cdev->name = name;
+
+	cdev->max_brightness = conf.max_brightness;
+
+	ret = channel_attr_groups_set(channel, cdev);
+	if (ret < 0)
+		return ret;
+
+	gb_lights_led_operations_set(channel, cdev);
+
+	/*
+	 * If it is not a flash related channel (flash, torch or indicator) we
+	 * are done here. If not, continue and fetch flash related
+	 * configurations.
+	 */
+	if (!is_channel_flash(channel))
+		return ret;
+
+	light->has_flash = true;
+
+	return gb_lights_channel_flash_config(channel);
+}
+
+static int gb_lights_light_config(struct gb_lights *glights, u8 id)
+{
+	struct gb_light *light = &glights->lights[id];
+	struct gb_lights_get_light_config_request req;
+	struct gb_lights_get_light_config_response conf;
+	int ret;
+	int i;
+
+	light->glights = glights;
+	light->id = id;
+
+	req.id = id;
+
+	ret = gb_operation_sync(glights->connection,
+				GB_LIGHTS_TYPE_GET_LIGHT_CONFIG,
+				&req, sizeof(req), &conf, sizeof(conf));
+	if (ret < 0)
+		return ret;
+
+	if (!conf.channel_count)
+		return -EINVAL;
+	if (!strlen(conf.name))
+		return -EINVAL;
+
+	light->channels_count = conf.channel_count;
+	light->name = kstrndup(conf.name, NAMES_MAX, GFP_KERNEL);
+	if (!light->name)
+		return -ENOMEM;
+	light->channels = kcalloc(light->channels_count,
+				  sizeof(struct gb_channel), GFP_KERNEL);
+	if (!light->channels)
+		return -ENOMEM;
+
+	/* First we collect all the configurations for all channels */
+	for (i = 0; i < light->channels_count; i++) {
+		light->channels[i].id = i;
+		ret = gb_lights_channel_config(light, &light->channels[i]);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int gb_lights_light_register(struct gb_light *light)
+{
+	int ret;
+	int i;
+
+	/*
+	 * Then, if everything went ok in getting configurations, we register
+	 * the classdev, flash classdev and v4l2 subsystem, if a flash device is
+	 * found.
+	 */
+	for (i = 0; i < light->channels_count; i++) {
+		ret = gb_lights_channel_register(&light->channels[i]);
+		if (ret < 0)
+			return ret;
+
+		mutex_init(&light->channels[i].lock);
+	}
+
+	light->ready = true;
+
+	if (light->has_flash) {
+		ret = gb_lights_light_v4l2_register(light);
+		if (ret < 0) {
+			light->has_flash = false;
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static void gb_lights_channel_free(struct gb_channel *channel)
+{
+	kfree(channel->attrs);
+	kfree(channel->attr_group);
+	kfree(channel->attr_groups);
+	kfree(channel->color_name);
+	kfree(channel->mode_name);
+	mutex_destroy(&channel->lock);
+}
+
+static void gb_lights_channel_release(struct gb_channel *channel)
+{
+	channel->releasing = true;
+
+	gb_lights_channel_unregister(channel);
+
+	gb_lights_channel_free(channel);
+}
+
+static void gb_lights_light_release(struct gb_light *light)
+{
+	int i;
+
+	light->ready = false;
+
+	if (light->has_flash)
+		gb_lights_light_v4l2_unregister(light);
+	light->has_flash = false;
+
+	for (i = 0; i < light->channels_count; i++)
+		gb_lights_channel_release(&light->channels[i]);
+	light->channels_count = 0;
+
+	kfree(light->channels);
+	light->channels = NULL;
+	kfree(light->name);
+	light->name = NULL;
+}
+
+static void gb_lights_release(struct gb_lights *glights)
+{
+	int i;
+
+	if (!glights)
+		return;
+
+	mutex_lock(&glights->lights_lock);
+	if (!glights->lights)
+		goto free_glights;
+
+	for (i = 0; i < glights->lights_count; i++)
+		gb_lights_light_release(&glights->lights[i]);
+
+	kfree(glights->lights);
+
+free_glights:
+	mutex_unlock(&glights->lights_lock);
+	mutex_destroy(&glights->lights_lock);
+	kfree(glights);
+}
+
+static int gb_lights_get_count(struct gb_lights *glights)
+{
+	struct gb_lights_get_lights_response resp;
+	int ret;
+
+	ret = gb_operation_sync(glights->connection, GB_LIGHTS_TYPE_GET_LIGHTS,
+				NULL, 0, &resp, sizeof(resp));
+	if (ret < 0)
+		return ret;
+
+	if (!resp.lights_count)
+		return -EINVAL;
+
+	glights->lights_count = resp.lights_count;
+
+	return 0;
+}
+
+static int gb_lights_create_all(struct gb_lights *glights)
+{
+	struct gb_connection *connection = glights->connection;
+	int ret;
+	int i;
+
+	mutex_lock(&glights->lights_lock);
+	ret = gb_lights_get_count(glights);
+	if (ret < 0)
+		goto out;
+
+	glights->lights = kcalloc(glights->lights_count,
+				  sizeof(struct gb_light), GFP_KERNEL);
+	if (!glights->lights) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0; i < glights->lights_count; i++) {
+		ret = gb_lights_light_config(glights, i);
+		if (ret < 0) {
+			dev_err(&connection->bundle->dev,
+				"Fail to configure lights device\n");
+			goto out;
+		}
+	}
+
+out:
+	mutex_unlock(&glights->lights_lock);
+	return ret;
+}
+
+static int gb_lights_register_all(struct gb_lights *glights)
+{
+	struct gb_connection *connection = glights->connection;
+	int ret = 0;
+	int i;
+
+	mutex_lock(&glights->lights_lock);
+	for (i = 0; i < glights->lights_count; i++) {
+		ret = gb_lights_light_register(&glights->lights[i]);
+		if (ret < 0) {
+			dev_err(&connection->bundle->dev,
+				"Fail to enable lights device\n");
+			break;
+		}
+	}
+
+	mutex_unlock(&glights->lights_lock);
+	return ret;
+}
+
+static int gb_lights_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct device *dev = &connection->bundle->dev;
+	struct gb_lights *glights = gb_connection_get_data(connection);
+	struct gb_light *light;
+	struct gb_message *request;
+	struct gb_lights_event_request *payload;
+	int ret =  0;
+	u8 light_id;
+	u8 event;
+
+	if (op->type != GB_LIGHTS_TYPE_EVENT) {
+		dev_err(dev, "Unsupported unsolicited event: %u\n", op->type);
+		return -EINVAL;
+	}
+
+	request = op->request;
+
+	if (request->payload_size < sizeof(*payload)) {
+		dev_err(dev, "Wrong event size received (%zu < %zu)\n",
+			request->payload_size, sizeof(*payload));
+		return -EINVAL;
+	}
+
+	payload = request->payload;
+	light_id = payload->light_id;
+
+	if (light_id >= glights->lights_count ||
+	    !glights->lights[light_id].ready) {
+		dev_err(dev, "Event received for unconfigured light id: %d\n",
+			light_id);
+		return -EINVAL;
+	}
+
+	event = payload->event;
+
+	if (event & GB_LIGHTS_LIGHT_CONFIG) {
+		light = &glights->lights[light_id];
+
+		mutex_lock(&glights->lights_lock);
+		gb_lights_light_release(light);
+		ret = gb_lights_light_config(glights, light_id);
+		if (!ret)
+			ret = gb_lights_light_register(light);
+		if (ret < 0)
+			gb_lights_light_release(light);
+		mutex_unlock(&glights->lights_lock);
+	}
+
+	return ret;
+}
+
+static int gb_lights_probe(struct gb_bundle *bundle,
+			   const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_lights *glights;
+	int ret;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_LIGHTS)
+		return -ENODEV;
+
+	glights = kzalloc(sizeof(*glights), GFP_KERNEL);
+	if (!glights)
+		return -ENOMEM;
+
+	mutex_init(&glights->lights_lock);
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  gb_lights_request_handler);
+	if (IS_ERR(connection)) {
+		ret = PTR_ERR(connection);
+		goto out;
+	}
+
+	glights->connection = connection;
+	gb_connection_set_data(connection, glights);
+
+	greybus_set_drvdata(bundle, glights);
+
+	/* We aren't ready to receive an incoming request yet */
+	ret = gb_connection_enable_tx(connection);
+	if (ret)
+		goto error_connection_destroy;
+
+	/*
+	 * Setup all the lights devices over this connection, if anything goes
+	 * wrong tear down all lights
+	 */
+	ret = gb_lights_create_all(glights);
+	if (ret < 0)
+		goto error_connection_disable;
+
+	/* We are ready to receive an incoming request now, enable RX as well */
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto error_connection_disable;
+
+	/* Enable & register lights */
+	ret = gb_lights_register_all(glights);
+	if (ret < 0)
+		goto error_connection_disable;
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+
+error_connection_disable:
+	gb_connection_disable(connection);
+error_connection_destroy:
+	gb_connection_destroy(connection);
+out:
+	gb_lights_release(glights);
+	return ret;
+}
+
+static void gb_lights_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_lights *glights = greybus_get_drvdata(bundle);
+
+	if (gb_pm_runtime_get_sync(bundle))
+		gb_pm_runtime_get_noresume(bundle);
+
+	gb_connection_disable(glights->connection);
+	gb_connection_destroy(glights->connection);
+
+	gb_lights_release(glights);
+}
+
+static const struct greybus_bundle_id gb_lights_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_LIGHTS) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_lights_id_table);
+
+static struct greybus_driver gb_lights_driver = {
+	.name		= "lights",
+	.probe		= gb_lights_probe,
+	.disconnect	= gb_lights_disconnect,
+	.id_table	= gb_lights_id_table,
+};
+module_greybus_driver(gb_lights_driver);
+
+MODULE_DESCRIPTION("Greybus Lights protocol driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/log.c b/drivers/staging/greybus/log.c
new file mode 100644
index 000000000000..57dcf9453bf1
--- /dev/null
+++ b/drivers/staging/greybus/log.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus driver for the log protocol
+ *
+ * Copyright 2016 Google Inc.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/sizes.h>
+#include <linux/uaccess.h>
+#include <linux/greybus.h>
+
+struct gb_log {
+	struct gb_connection *connection;
+};
+
+static int gb_log_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct device *dev = &connection->bundle->dev;
+	struct gb_log_send_log_request *receive;
+	u16 len;
+
+	if (op->type != GB_LOG_TYPE_SEND_LOG) {
+		dev_err(dev, "unknown request type 0x%02x\n", op->type);
+		return -EINVAL;
+	}
+
+	/* Verify size of payload */
+	if (op->request->payload_size < sizeof(*receive)) {
+		dev_err(dev, "log request too small (%zu < %zu)\n",
+			op->request->payload_size, sizeof(*receive));
+		return -EINVAL;
+	}
+	receive = op->request->payload;
+	len = le16_to_cpu(receive->len);
+	if (len != (op->request->payload_size - sizeof(*receive))) {
+		dev_err(dev, "log request wrong size %d vs %zu\n", len,
+			(op->request->payload_size - sizeof(*receive)));
+		return -EINVAL;
+	}
+	if (len == 0) {
+		dev_err(dev, "log request of 0 bytes?\n");
+		return -EINVAL;
+	}
+
+	if (len > GB_LOG_MAX_LEN) {
+		dev_err(dev, "log request too big: %d\n", len);
+		return -EINVAL;
+	}
+
+	/* Ensure the buffer is 0 terminated */
+	receive->msg[len - 1] = '\0';
+
+	/*
+	 * Print with dev_dbg() so that it can be easily turned off using
+	 * dynamic debugging (and prevent any DoS)
+	 */
+	dev_dbg(dev, "%s", receive->msg);
+
+	return 0;
+}
+
+static int gb_log_probe(struct gb_bundle *bundle,
+			const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_log *log;
+	int retval;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_LOG)
+		return -ENODEV;
+
+	log = kzalloc(sizeof(*log), GFP_KERNEL);
+	if (!log)
+		return -ENOMEM;
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  gb_log_request_handler);
+	if (IS_ERR(connection)) {
+		retval = PTR_ERR(connection);
+		goto error_free;
+	}
+
+	log->connection = connection;
+	greybus_set_drvdata(bundle, log);
+
+	retval = gb_connection_enable(connection);
+	if (retval)
+		goto error_connection_destroy;
+
+	return 0;
+
+error_connection_destroy:
+	gb_connection_destroy(connection);
+error_free:
+	kfree(log);
+	return retval;
+}
+
+static void gb_log_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_log *log = greybus_get_drvdata(bundle);
+	struct gb_connection *connection = log->connection;
+
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+
+	kfree(log);
+}
+
+static const struct greybus_bundle_id gb_log_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_LOG) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_log_id_table);
+
+static struct greybus_driver gb_log_driver = {
+	.name           = "log",
+	.probe          = gb_log_probe,
+	.disconnect     = gb_log_disconnect,
+	.id_table       = gb_log_id_table,
+};
+module_greybus_driver(gb_log_driver);
+
+MODULE_DESCRIPTION("Greybus driver for the log protocol");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
new file mode 100644
index 000000000000..1f19323b0e1a
--- /dev/null
+++ b/drivers/staging/greybus/loopback.c
@@ -0,0 +1,1179 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Loopback bridge driver for the Greybus loopback module.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/kthread.h>
+#include <linux/delay.h>
+#include <linux/random.h>
+#include <linux/sizes.h>
+#include <linux/cdev.h>
+#include <linux/fs.h>
+#include <linux/kfifo.h>
+#include <linux/debugfs.h>
+#include <linux/list_sort.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/atomic.h>
+#include <linux/pm_runtime.h>
+#include <linux/greybus.h>
+#include <asm/div64.h>
+
+#define NSEC_PER_DAY 86400000000000ULL
+
+struct gb_loopback_stats {
+	u32 min;
+	u32 max;
+	u64 sum;
+	u32 count;
+};
+
+struct gb_loopback_device {
+	struct dentry *root;
+	u32 count;
+	size_t size_max;
+
+	/* We need to take a lock in atomic context */
+	spinlock_t lock;
+	wait_queue_head_t wq;
+};
+
+static struct gb_loopback_device gb_dev;
+
+struct gb_loopback_async_operation {
+	struct gb_loopback *gb;
+	struct gb_operation *operation;
+	ktime_t ts;
+	int (*completion)(struct gb_loopback_async_operation *op_async);
+};
+
+struct gb_loopback {
+	struct gb_connection *connection;
+
+	struct dentry *file;
+	struct kfifo kfifo_lat;
+	struct mutex mutex;
+	struct task_struct *task;
+	struct device *dev;
+	wait_queue_head_t wq;
+	wait_queue_head_t wq_completion;
+	atomic_t outstanding_operations;
+
+	/* Per connection stats */
+	ktime_t ts;
+	struct gb_loopback_stats latency;
+	struct gb_loopback_stats throughput;
+	struct gb_loopback_stats requests_per_second;
+	struct gb_loopback_stats apbridge_unipro_latency;
+	struct gb_loopback_stats gbphy_firmware_latency;
+
+	int type;
+	int async;
+	int id;
+	u32 size;
+	u32 iteration_max;
+	u32 iteration_count;
+	int us_wait;
+	u32 error;
+	u32 requests_completed;
+	u32 requests_timedout;
+	u32 timeout;
+	u32 jiffy_timeout;
+	u32 timeout_min;
+	u32 timeout_max;
+	u32 outstanding_operations_max;
+	u64 elapsed_nsecs;
+	u32 apbridge_latency_ts;
+	u32 gbphy_latency_ts;
+
+	u32 send_count;
+};
+
+static struct class loopback_class = {
+	.name		= "gb_loopback",
+};
+
+static DEFINE_IDA(loopback_ida);
+
+/* Min/max values in jiffies */
+#define GB_LOOPBACK_TIMEOUT_MIN				1
+#define GB_LOOPBACK_TIMEOUT_MAX				10000
+
+#define GB_LOOPBACK_FIFO_DEFAULT			8192
+
+static unsigned int kfifo_depth = GB_LOOPBACK_FIFO_DEFAULT;
+module_param(kfifo_depth, uint, 0444);
+
+/* Maximum size of any one send data buffer we support */
+#define MAX_PACKET_SIZE (PAGE_SIZE * 2)
+
+#define GB_LOOPBACK_US_WAIT_MAX				1000000
+
+/* interface sysfs attributes */
+#define gb_loopback_ro_attr(field)				\
+static ssize_t field##_show(struct device *dev,			\
+			    struct device_attribute *attr,		\
+			    char *buf)					\
+{									\
+	struct gb_loopback *gb = dev_get_drvdata(dev);			\
+	return sprintf(buf, "%u\n", gb->field);			\
+}									\
+static DEVICE_ATTR_RO(field)
+
+#define gb_loopback_ro_stats_attr(name, field, type)		\
+static ssize_t name##_##field##_show(struct device *dev,	\
+			    struct device_attribute *attr,		\
+			    char *buf)					\
+{									\
+	struct gb_loopback *gb = dev_get_drvdata(dev);			\
+	/* Report 0 for min and max if no transfer succeeded */		\
+	if (!gb->requests_completed)					\
+		return sprintf(buf, "0\n");				\
+	return sprintf(buf, "%" #type "\n", gb->name.field);		\
+}									\
+static DEVICE_ATTR_RO(name##_##field)
+
+#define gb_loopback_ro_avg_attr(name)			\
+static ssize_t name##_avg_show(struct device *dev,		\
+			    struct device_attribute *attr,		\
+			    char *buf)					\
+{									\
+	struct gb_loopback_stats *stats;				\
+	struct gb_loopback *gb;						\
+	u64 avg, rem;							\
+	u32 count;							\
+	gb = dev_get_drvdata(dev);			\
+	stats = &gb->name;					\
+	count = stats->count ? stats->count : 1;			\
+	avg = stats->sum + count / 2000000; /* round closest */		\
+	rem = do_div(avg, count);					\
+	rem *= 1000000;							\
+	do_div(rem, count);						\
+	return sprintf(buf, "%llu.%06u\n", avg, (u32)rem);		\
+}									\
+static DEVICE_ATTR_RO(name##_avg)
+
+#define gb_loopback_stats_attrs(field)				\
+	gb_loopback_ro_stats_attr(field, min, u);		\
+	gb_loopback_ro_stats_attr(field, max, u);		\
+	gb_loopback_ro_avg_attr(field)
+
+#define gb_loopback_attr(field, type)					\
+static ssize_t field##_show(struct device *dev,				\
+			    struct device_attribute *attr,		\
+			    char *buf)					\
+{									\
+	struct gb_loopback *gb = dev_get_drvdata(dev);			\
+	return sprintf(buf, "%" #type "\n", gb->field);			\
+}									\
+static ssize_t field##_store(struct device *dev,			\
+			    struct device_attribute *attr,		\
+			    const char *buf,				\
+			    size_t len)					\
+{									\
+	int ret;							\
+	struct gb_loopback *gb = dev_get_drvdata(dev);			\
+	mutex_lock(&gb->mutex);						\
+	ret = sscanf(buf, "%"#type, &gb->field);			\
+	if (ret != 1)							\
+		len = -EINVAL;						\
+	else								\
+		gb_loopback_check_attr(gb, bundle);			\
+	mutex_unlock(&gb->mutex);					\
+	return len;							\
+}									\
+static DEVICE_ATTR_RW(field)
+
+#define gb_dev_loopback_ro_attr(field, conn)				\
+static ssize_t field##_show(struct device *dev,		\
+			    struct device_attribute *attr,		\
+			    char *buf)					\
+{									\
+	struct gb_loopback *gb = dev_get_drvdata(dev);			\
+	return sprintf(buf, "%u\n", gb->field);				\
+}									\
+static DEVICE_ATTR_RO(field)
+
+#define gb_dev_loopback_rw_attr(field, type)				\
+static ssize_t field##_show(struct device *dev,				\
+			    struct device_attribute *attr,		\
+			    char *buf)					\
+{									\
+	struct gb_loopback *gb = dev_get_drvdata(dev);			\
+	return sprintf(buf, "%" #type "\n", gb->field);			\
+}									\
+static ssize_t field##_store(struct device *dev,			\
+			    struct device_attribute *attr,		\
+			    const char *buf,				\
+			    size_t len)					\
+{									\
+	int ret;							\
+	struct gb_loopback *gb = dev_get_drvdata(dev);			\
+	mutex_lock(&gb->mutex);						\
+	ret = sscanf(buf, "%"#type, &gb->field);			\
+	if (ret != 1)							\
+		len = -EINVAL;						\
+	else								\
+		gb_loopback_check_attr(gb);		\
+	mutex_unlock(&gb->mutex);					\
+	return len;							\
+}									\
+static DEVICE_ATTR_RW(field)
+
+static void gb_loopback_reset_stats(struct gb_loopback *gb);
+static void gb_loopback_check_attr(struct gb_loopback *gb)
+{
+	if (gb->us_wait > GB_LOOPBACK_US_WAIT_MAX)
+		gb->us_wait = GB_LOOPBACK_US_WAIT_MAX;
+	if (gb->size > gb_dev.size_max)
+		gb->size = gb_dev.size_max;
+	gb->requests_timedout = 0;
+	gb->requests_completed = 0;
+	gb->iteration_count = 0;
+	gb->send_count = 0;
+	gb->error = 0;
+
+	if (kfifo_depth < gb->iteration_max) {
+		dev_warn(gb->dev,
+			 "cannot log bytes %u kfifo_depth %u\n",
+			 gb->iteration_max, kfifo_depth);
+	}
+	kfifo_reset_out(&gb->kfifo_lat);
+
+	switch (gb->type) {
+	case GB_LOOPBACK_TYPE_PING:
+	case GB_LOOPBACK_TYPE_TRANSFER:
+	case GB_LOOPBACK_TYPE_SINK:
+		gb->jiffy_timeout = usecs_to_jiffies(gb->timeout);
+		if (!gb->jiffy_timeout)
+			gb->jiffy_timeout = GB_LOOPBACK_TIMEOUT_MIN;
+		else if (gb->jiffy_timeout > GB_LOOPBACK_TIMEOUT_MAX)
+			gb->jiffy_timeout = GB_LOOPBACK_TIMEOUT_MAX;
+		gb_loopback_reset_stats(gb);
+		wake_up(&gb->wq);
+		break;
+	default:
+		gb->type = 0;
+		break;
+	}
+}
+
+/* Time to send and receive one message */
+gb_loopback_stats_attrs(latency);
+/* Number of requests sent per second on this cport */
+gb_loopback_stats_attrs(requests_per_second);
+/* Quantity of data sent and received on this cport */
+gb_loopback_stats_attrs(throughput);
+/* Latency across the UniPro link from APBridge's perspective */
+gb_loopback_stats_attrs(apbridge_unipro_latency);
+/* Firmware induced overhead in the GPBridge */
+gb_loopback_stats_attrs(gbphy_firmware_latency);
+
+/* Number of errors encountered during loop */
+gb_loopback_ro_attr(error);
+/* Number of requests successfully completed async */
+gb_loopback_ro_attr(requests_completed);
+/* Number of requests timed out async */
+gb_loopback_ro_attr(requests_timedout);
+/* Timeout minimum in useconds */
+gb_loopback_ro_attr(timeout_min);
+/* Timeout minimum in useconds */
+gb_loopback_ro_attr(timeout_max);
+
+/*
+ * Type of loopback message to send based on protocol type definitions
+ * 0 => Don't send message
+ * 2 => Send ping message continuously (message without payload)
+ * 3 => Send transfer message continuously (message with payload,
+ *					   payload returned in response)
+ * 4 => Send a sink message (message with payload, no payload in response)
+ */
+gb_dev_loopback_rw_attr(type, d);
+/* Size of transfer message payload: 0-4096 bytes */
+gb_dev_loopback_rw_attr(size, u);
+/* Time to wait between two messages: 0-1000 ms */
+gb_dev_loopback_rw_attr(us_wait, d);
+/* Maximum iterations for a given operation: 1-(2^32-1), 0 implies infinite */
+gb_dev_loopback_rw_attr(iteration_max, u);
+/* The current index of the for (i = 0; i < iteration_max; i++) loop */
+gb_dev_loopback_ro_attr(iteration_count, false);
+/* A flag to indicate synchronous or asynchronous operations */
+gb_dev_loopback_rw_attr(async, u);
+/* Timeout of an individual asynchronous request */
+gb_dev_loopback_rw_attr(timeout, u);
+/* Maximum number of in-flight operations before back-off */
+gb_dev_loopback_rw_attr(outstanding_operations_max, u);
+
+static struct attribute *loopback_attrs[] = {
+	&dev_attr_latency_min.attr,
+	&dev_attr_latency_max.attr,
+	&dev_attr_latency_avg.attr,
+	&dev_attr_requests_per_second_min.attr,
+	&dev_attr_requests_per_second_max.attr,
+	&dev_attr_requests_per_second_avg.attr,
+	&dev_attr_throughput_min.attr,
+	&dev_attr_throughput_max.attr,
+	&dev_attr_throughput_avg.attr,
+	&dev_attr_apbridge_unipro_latency_min.attr,
+	&dev_attr_apbridge_unipro_latency_max.attr,
+	&dev_attr_apbridge_unipro_latency_avg.attr,
+	&dev_attr_gbphy_firmware_latency_min.attr,
+	&dev_attr_gbphy_firmware_latency_max.attr,
+	&dev_attr_gbphy_firmware_latency_avg.attr,
+	&dev_attr_type.attr,
+	&dev_attr_size.attr,
+	&dev_attr_us_wait.attr,
+	&dev_attr_iteration_count.attr,
+	&dev_attr_iteration_max.attr,
+	&dev_attr_async.attr,
+	&dev_attr_error.attr,
+	&dev_attr_requests_completed.attr,
+	&dev_attr_requests_timedout.attr,
+	&dev_attr_timeout.attr,
+	&dev_attr_outstanding_operations_max.attr,
+	&dev_attr_timeout_min.attr,
+	&dev_attr_timeout_max.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(loopback);
+
+static void gb_loopback_calculate_stats(struct gb_loopback *gb, bool error);
+
+static u32 gb_loopback_nsec_to_usec_latency(u64 elapsed_nsecs)
+{
+	do_div(elapsed_nsecs, NSEC_PER_USEC);
+	return elapsed_nsecs;
+}
+
+static u64 __gb_loopback_calc_latency(u64 t1, u64 t2)
+{
+	if (t2 > t1)
+		return t2 - t1;
+	else
+		return NSEC_PER_DAY - t2 + t1;
+}
+
+static u64 gb_loopback_calc_latency(ktime_t ts, ktime_t te)
+{
+	return __gb_loopback_calc_latency(ktime_to_ns(ts), ktime_to_ns(te));
+}
+
+static int gb_loopback_operation_sync(struct gb_loopback *gb, int type,
+				      void *request, int request_size,
+				      void *response, int response_size)
+{
+	struct gb_operation *operation;
+	ktime_t ts, te;
+	int ret;
+
+	ts = ktime_get();
+	operation = gb_operation_create(gb->connection, type, request_size,
+					response_size, GFP_KERNEL);
+	if (!operation)
+		return -ENOMEM;
+
+	if (request_size)
+		memcpy(operation->request->payload, request, request_size);
+
+	ret = gb_operation_request_send_sync(operation);
+	if (ret) {
+		dev_err(&gb->connection->bundle->dev,
+			"synchronous operation failed: %d\n", ret);
+		goto out_put_operation;
+	} else {
+		if (response_size == operation->response->payload_size) {
+			memcpy(response, operation->response->payload,
+			       response_size);
+		} else {
+			dev_err(&gb->connection->bundle->dev,
+				"response size %zu expected %d\n",
+				operation->response->payload_size,
+				response_size);
+			ret = -EINVAL;
+			goto out_put_operation;
+		}
+	}
+
+	te = ktime_get();
+
+	/* Calculate the total time the message took */
+	gb->elapsed_nsecs = gb_loopback_calc_latency(ts, te);
+
+out_put_operation:
+	gb_operation_put(operation);
+
+	return ret;
+}
+
+static void gb_loopback_async_wait_all(struct gb_loopback *gb)
+{
+	wait_event(gb->wq_completion,
+		   !atomic_read(&gb->outstanding_operations));
+}
+
+static void gb_loopback_async_operation_callback(struct gb_operation *operation)
+{
+	struct gb_loopback_async_operation *op_async;
+	struct gb_loopback *gb;
+	ktime_t te;
+	int result;
+
+	te = ktime_get();
+	result = gb_operation_result(operation);
+	op_async = gb_operation_get_data(operation);
+	gb = op_async->gb;
+
+	mutex_lock(&gb->mutex);
+
+	if (!result && op_async->completion)
+		result = op_async->completion(op_async);
+
+	if (!result) {
+		gb->elapsed_nsecs = gb_loopback_calc_latency(op_async->ts, te);
+	} else {
+		gb->error++;
+		if (result == -ETIMEDOUT)
+			gb->requests_timedout++;
+	}
+
+	gb->iteration_count++;
+	gb_loopback_calculate_stats(gb, result);
+
+	mutex_unlock(&gb->mutex);
+
+	dev_dbg(&gb->connection->bundle->dev, "complete operation %d\n",
+		operation->id);
+
+	/* Wake up waiters */
+	atomic_dec(&op_async->gb->outstanding_operations);
+	wake_up(&gb->wq_completion);
+
+	/* Release resources */
+	gb_operation_put(operation);
+	kfree(op_async);
+}
+
+static int gb_loopback_async_operation(struct gb_loopback *gb, int type,
+				       void *request, int request_size,
+				       int response_size,
+				       void *completion)
+{
+	struct gb_loopback_async_operation *op_async;
+	struct gb_operation *operation;
+	int ret;
+
+	op_async = kzalloc(sizeof(*op_async), GFP_KERNEL);
+	if (!op_async)
+		return -ENOMEM;
+
+	operation = gb_operation_create(gb->connection, type, request_size,
+					response_size, GFP_KERNEL);
+	if (!operation) {
+		kfree(op_async);
+		return -ENOMEM;
+	}
+
+	if (request_size)
+		memcpy(operation->request->payload, request, request_size);
+
+	gb_operation_set_data(operation, op_async);
+
+	op_async->gb = gb;
+	op_async->operation = operation;
+	op_async->completion = completion;
+
+	op_async->ts = ktime_get();
+
+	atomic_inc(&gb->outstanding_operations);
+	ret = gb_operation_request_send(operation,
+					gb_loopback_async_operation_callback,
+					jiffies_to_msecs(gb->jiffy_timeout),
+					GFP_KERNEL);
+	if (ret) {
+		atomic_dec(&gb->outstanding_operations);
+		gb_operation_put(operation);
+		kfree(op_async);
+	}
+	return ret;
+}
+
+static int gb_loopback_sync_sink(struct gb_loopback *gb, u32 len)
+{
+	struct gb_loopback_transfer_request *request;
+	int retval;
+
+	request = kmalloc(len + sizeof(*request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	request->len = cpu_to_le32(len);
+	retval = gb_loopback_operation_sync(gb, GB_LOOPBACK_TYPE_SINK,
+					    request, len + sizeof(*request),
+					    NULL, 0);
+	kfree(request);
+	return retval;
+}
+
+static int gb_loopback_sync_transfer(struct gb_loopback *gb, u32 len)
+{
+	struct gb_loopback_transfer_request *request;
+	struct gb_loopback_transfer_response *response;
+	int retval;
+
+	gb->apbridge_latency_ts = 0;
+	gb->gbphy_latency_ts = 0;
+
+	request = kmalloc(len + sizeof(*request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+	response = kmalloc(len + sizeof(*response), GFP_KERNEL);
+	if (!response) {
+		kfree(request);
+		return -ENOMEM;
+	}
+
+	memset(request->data, 0x5A, len);
+
+	request->len = cpu_to_le32(len);
+	retval = gb_loopback_operation_sync(gb, GB_LOOPBACK_TYPE_TRANSFER,
+					    request, len + sizeof(*request),
+					    response, len + sizeof(*response));
+	if (retval)
+		goto gb_error;
+
+	if (memcmp(request->data, response->data, len)) {
+		dev_err(&gb->connection->bundle->dev,
+			"Loopback Data doesn't match\n");
+		retval = -EREMOTEIO;
+	}
+	gb->apbridge_latency_ts = (u32)__le32_to_cpu(response->reserved0);
+	gb->gbphy_latency_ts = (u32)__le32_to_cpu(response->reserved1);
+
+gb_error:
+	kfree(request);
+	kfree(response);
+
+	return retval;
+}
+
+static int gb_loopback_sync_ping(struct gb_loopback *gb)
+{
+	return gb_loopback_operation_sync(gb, GB_LOOPBACK_TYPE_PING,
+					  NULL, 0, NULL, 0);
+}
+
+static int gb_loopback_async_sink(struct gb_loopback *gb, u32 len)
+{
+	struct gb_loopback_transfer_request *request;
+	int retval;
+
+	request = kmalloc(len + sizeof(*request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	request->len = cpu_to_le32(len);
+	retval = gb_loopback_async_operation(gb, GB_LOOPBACK_TYPE_SINK,
+					     request, len + sizeof(*request),
+					     0, NULL);
+	kfree(request);
+	return retval;
+}
+
+static int gb_loopback_async_transfer_complete(
+				struct gb_loopback_async_operation *op_async)
+{
+	struct gb_loopback *gb;
+	struct gb_operation *operation;
+	struct gb_loopback_transfer_request *request;
+	struct gb_loopback_transfer_response *response;
+	size_t len;
+	int retval = 0;
+
+	gb = op_async->gb;
+	operation = op_async->operation;
+	request = operation->request->payload;
+	response = operation->response->payload;
+	len = le32_to_cpu(request->len);
+
+	if (memcmp(request->data, response->data, len)) {
+		dev_err(&gb->connection->bundle->dev,
+			"Loopback Data doesn't match operation id %d\n",
+			operation->id);
+		retval = -EREMOTEIO;
+	} else {
+		gb->apbridge_latency_ts =
+			(u32)__le32_to_cpu(response->reserved0);
+		gb->gbphy_latency_ts =
+			(u32)__le32_to_cpu(response->reserved1);
+	}
+
+	return retval;
+}
+
+static int gb_loopback_async_transfer(struct gb_loopback *gb, u32 len)
+{
+	struct gb_loopback_transfer_request *request;
+	int retval, response_len;
+
+	request = kmalloc(len + sizeof(*request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	memset(request->data, 0x5A, len);
+
+	request->len = cpu_to_le32(len);
+	response_len = sizeof(struct gb_loopback_transfer_response);
+	retval = gb_loopback_async_operation(gb, GB_LOOPBACK_TYPE_TRANSFER,
+					     request, len + sizeof(*request),
+					     len + response_len,
+					     gb_loopback_async_transfer_complete);
+	if (retval)
+		goto gb_error;
+
+gb_error:
+	kfree(request);
+	return retval;
+}
+
+static int gb_loopback_async_ping(struct gb_loopback *gb)
+{
+	return gb_loopback_async_operation(gb, GB_LOOPBACK_TYPE_PING,
+					   NULL, 0, 0, NULL);
+}
+
+static int gb_loopback_request_handler(struct gb_operation *operation)
+{
+	struct gb_connection *connection = operation->connection;
+	struct gb_loopback_transfer_request *request;
+	struct gb_loopback_transfer_response *response;
+	struct device *dev = &connection->bundle->dev;
+	size_t len;
+
+	/* By convention, the AP initiates the version operation */
+	switch (operation->type) {
+	case GB_LOOPBACK_TYPE_PING:
+	case GB_LOOPBACK_TYPE_SINK:
+		return 0;
+	case GB_LOOPBACK_TYPE_TRANSFER:
+		if (operation->request->payload_size < sizeof(*request)) {
+			dev_err(dev, "transfer request too small (%zu < %zu)\n",
+				operation->request->payload_size,
+				sizeof(*request));
+			return -EINVAL;	/* -EMSGSIZE */
+		}
+		request = operation->request->payload;
+		len = le32_to_cpu(request->len);
+		if (len > gb_dev.size_max) {
+			dev_err(dev, "transfer request too large (%zu > %zu)\n",
+				len, gb_dev.size_max);
+			return -EINVAL;
+		}
+
+		if (!gb_operation_response_alloc(operation,
+				len + sizeof(*response), GFP_KERNEL)) {
+			dev_err(dev, "error allocating response\n");
+			return -ENOMEM;
+		}
+		response = operation->response->payload;
+		response->len = cpu_to_le32(len);
+		if (len)
+			memcpy(response->data, request->data, len);
+
+		return 0;
+	default:
+		dev_err(dev, "unsupported request: %u\n", operation->type);
+		return -EINVAL;
+	}
+}
+
+static void gb_loopback_reset_stats(struct gb_loopback *gb)
+{
+	struct gb_loopback_stats reset = {
+		.min = U32_MAX,
+	};
+
+	/* Reset per-connection stats */
+	memcpy(&gb->latency, &reset,
+	       sizeof(struct gb_loopback_stats));
+	memcpy(&gb->throughput, &reset,
+	       sizeof(struct gb_loopback_stats));
+	memcpy(&gb->requests_per_second, &reset,
+	       sizeof(struct gb_loopback_stats));
+	memcpy(&gb->apbridge_unipro_latency, &reset,
+	       sizeof(struct gb_loopback_stats));
+	memcpy(&gb->gbphy_firmware_latency, &reset,
+	       sizeof(struct gb_loopback_stats));
+
+	/* Should be initialized at least once per transaction set */
+	gb->apbridge_latency_ts = 0;
+	gb->gbphy_latency_ts = 0;
+	gb->ts = ktime_set(0, 0);
+}
+
+static void gb_loopback_update_stats(struct gb_loopback_stats *stats, u32 val)
+{
+	if (stats->min > val)
+		stats->min = val;
+	if (stats->max < val)
+		stats->max = val;
+	stats->sum += val;
+	stats->count++;
+}
+
+static void gb_loopback_update_stats_window(struct gb_loopback_stats *stats,
+					    u64 val, u32 count)
+{
+	stats->sum += val;
+	stats->count += count;
+
+	do_div(val, count);
+	if (stats->min > val)
+		stats->min = val;
+	if (stats->max < val)
+		stats->max = val;
+}
+
+static void gb_loopback_requests_update(struct gb_loopback *gb, u32 latency)
+{
+	u64 req = gb->requests_completed * USEC_PER_SEC;
+
+	gb_loopback_update_stats_window(&gb->requests_per_second, req, latency);
+}
+
+static void gb_loopback_throughput_update(struct gb_loopback *gb, u32 latency)
+{
+	u64 aggregate_size = sizeof(struct gb_operation_msg_hdr) * 2;
+
+	switch (gb->type) {
+	case GB_LOOPBACK_TYPE_PING:
+		break;
+	case GB_LOOPBACK_TYPE_SINK:
+		aggregate_size += sizeof(struct gb_loopback_transfer_request) +
+				  gb->size;
+		break;
+	case GB_LOOPBACK_TYPE_TRANSFER:
+		aggregate_size += sizeof(struct gb_loopback_transfer_request) +
+				  sizeof(struct gb_loopback_transfer_response) +
+				  gb->size * 2;
+		break;
+	default:
+		return;
+	}
+
+	aggregate_size *= gb->requests_completed;
+	aggregate_size *= USEC_PER_SEC;
+	gb_loopback_update_stats_window(&gb->throughput, aggregate_size,
+					latency);
+}
+
+static void gb_loopback_calculate_latency_stats(struct gb_loopback *gb)
+{
+	u32 lat;
+
+	/* Express latency in terms of microseconds */
+	lat = gb_loopback_nsec_to_usec_latency(gb->elapsed_nsecs);
+
+	/* Log latency stastic */
+	gb_loopback_update_stats(&gb->latency, lat);
+
+	/* Raw latency log on a per thread basis */
+	kfifo_in(&gb->kfifo_lat, (unsigned char *)&lat, sizeof(lat));
+
+	/* Log the firmware supplied latency values */
+	gb_loopback_update_stats(&gb->apbridge_unipro_latency,
+				 gb->apbridge_latency_ts);
+	gb_loopback_update_stats(&gb->gbphy_firmware_latency,
+				 gb->gbphy_latency_ts);
+}
+
+static void gb_loopback_calculate_stats(struct gb_loopback *gb, bool error)
+{
+	u64 nlat;
+	u32 lat;
+	ktime_t te;
+
+	if (!error) {
+		gb->requests_completed++;
+		gb_loopback_calculate_latency_stats(gb);
+	}
+
+	te = ktime_get();
+	nlat = gb_loopback_calc_latency(gb->ts, te);
+	if (nlat >= NSEC_PER_SEC || gb->iteration_count == gb->iteration_max) {
+		lat = gb_loopback_nsec_to_usec_latency(nlat);
+
+		gb_loopback_throughput_update(gb, lat);
+		gb_loopback_requests_update(gb, lat);
+
+		if (gb->iteration_count != gb->iteration_max) {
+			gb->ts = te;
+			gb->requests_completed = 0;
+		}
+	}
+}
+
+static void gb_loopback_async_wait_to_send(struct gb_loopback *gb)
+{
+	if (!(gb->async && gb->outstanding_operations_max))
+		return;
+	wait_event_interruptible(gb->wq_completion,
+				 (atomic_read(&gb->outstanding_operations) <
+				  gb->outstanding_operations_max) ||
+				  kthread_should_stop());
+}
+
+static int gb_loopback_fn(void *data)
+{
+	int error = 0;
+	int us_wait = 0;
+	int type;
+	int ret;
+	u32 size;
+
+	struct gb_loopback *gb = data;
+	struct gb_bundle *bundle = gb->connection->bundle;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	while (1) {
+		if (!gb->type) {
+			gb_pm_runtime_put_autosuspend(bundle);
+			wait_event_interruptible(gb->wq, gb->type ||
+						 kthread_should_stop());
+			ret = gb_pm_runtime_get_sync(bundle);
+			if (ret)
+				return ret;
+		}
+
+		if (kthread_should_stop())
+			break;
+
+		/* Limit the maximum number of in-flight async operations */
+		gb_loopback_async_wait_to_send(gb);
+		if (kthread_should_stop())
+			break;
+
+		mutex_lock(&gb->mutex);
+
+		/* Optionally terminate */
+		if (gb->send_count == gb->iteration_max) {
+			mutex_unlock(&gb->mutex);
+
+			/* Wait for synchronous and asynchronous completion */
+			gb_loopback_async_wait_all(gb);
+
+			/* Mark complete unless user-space has poked us */
+			mutex_lock(&gb->mutex);
+			if (gb->iteration_count == gb->iteration_max) {
+				gb->type = 0;
+				gb->send_count = 0;
+				sysfs_notify(&gb->dev->kobj,  NULL,
+					     "iteration_count");
+				dev_dbg(&bundle->dev, "load test complete\n");
+			} else {
+				dev_dbg(&bundle->dev,
+					"continuing on with new test set\n");
+			}
+			mutex_unlock(&gb->mutex);
+			continue;
+		}
+		size = gb->size;
+		us_wait = gb->us_wait;
+		type = gb->type;
+		if (ktime_to_ns(gb->ts) == 0)
+			gb->ts = ktime_get();
+
+		/* Else operations to perform */
+		if (gb->async) {
+			if (type == GB_LOOPBACK_TYPE_PING)
+				error = gb_loopback_async_ping(gb);
+			else if (type == GB_LOOPBACK_TYPE_TRANSFER)
+				error = gb_loopback_async_transfer(gb, size);
+			else if (type == GB_LOOPBACK_TYPE_SINK)
+				error = gb_loopback_async_sink(gb, size);
+
+			if (error) {
+				gb->error++;
+				gb->iteration_count++;
+			}
+		} else {
+			/* We are effectively single threaded here */
+			if (type == GB_LOOPBACK_TYPE_PING)
+				error = gb_loopback_sync_ping(gb);
+			else if (type == GB_LOOPBACK_TYPE_TRANSFER)
+				error = gb_loopback_sync_transfer(gb, size);
+			else if (type == GB_LOOPBACK_TYPE_SINK)
+				error = gb_loopback_sync_sink(gb, size);
+
+			if (error)
+				gb->error++;
+			gb->iteration_count++;
+			gb_loopback_calculate_stats(gb, !!error);
+		}
+		gb->send_count++;
+		mutex_unlock(&gb->mutex);
+
+		if (us_wait) {
+			if (us_wait < 20000)
+				usleep_range(us_wait, us_wait + 100);
+			else
+				msleep(us_wait / 1000);
+		}
+	}
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+}
+
+static int gb_loopback_dbgfs_latency_show_common(struct seq_file *s,
+						 struct kfifo *kfifo,
+						 struct mutex *mutex)
+{
+	u32 latency;
+	int retval;
+
+	if (kfifo_len(kfifo) == 0) {
+		retval = -EAGAIN;
+		goto done;
+	}
+
+	mutex_lock(mutex);
+	retval = kfifo_out(kfifo, &latency, sizeof(latency));
+	if (retval > 0) {
+		seq_printf(s, "%u", latency);
+		retval = 0;
+	}
+	mutex_unlock(mutex);
+done:
+	return retval;
+}
+
+static int gb_loopback_dbgfs_latency_show(struct seq_file *s, void *unused)
+{
+	struct gb_loopback *gb = s->private;
+
+	return gb_loopback_dbgfs_latency_show_common(s, &gb->kfifo_lat,
+						     &gb->mutex);
+}
+DEFINE_SHOW_ATTRIBUTE(gb_loopback_dbgfs_latency);
+
+#define DEBUGFS_NAMELEN 32
+
+static int gb_loopback_probe(struct gb_bundle *bundle,
+			     const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_loopback *gb;
+	struct device *dev;
+	int retval;
+	char name[DEBUGFS_NAMELEN];
+	unsigned long flags;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_LOOPBACK)
+		return -ENODEV;
+
+	gb = kzalloc(sizeof(*gb), GFP_KERNEL);
+	if (!gb)
+		return -ENOMEM;
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  gb_loopback_request_handler);
+	if (IS_ERR(connection)) {
+		retval = PTR_ERR(connection);
+		goto out_kzalloc;
+	}
+
+	gb->connection = connection;
+	greybus_set_drvdata(bundle, gb);
+
+	init_waitqueue_head(&gb->wq);
+	init_waitqueue_head(&gb->wq_completion);
+	atomic_set(&gb->outstanding_operations, 0);
+	gb_loopback_reset_stats(gb);
+
+	/* Reported values to user-space for min/max timeouts */
+	gb->timeout_min = jiffies_to_usecs(GB_LOOPBACK_TIMEOUT_MIN);
+	gb->timeout_max = jiffies_to_usecs(GB_LOOPBACK_TIMEOUT_MAX);
+
+	if (!gb_dev.count) {
+		/* Calculate maximum payload */
+		gb_dev.size_max = gb_operation_get_payload_size_max(connection);
+		if (gb_dev.size_max <=
+			sizeof(struct gb_loopback_transfer_request)) {
+			retval = -EINVAL;
+			goto out_connection_destroy;
+		}
+		gb_dev.size_max -= sizeof(struct gb_loopback_transfer_request);
+	}
+
+	/* Create per-connection sysfs and debugfs data-points */
+	snprintf(name, sizeof(name), "raw_latency_%s",
+		 dev_name(&connection->bundle->dev));
+	gb->file = debugfs_create_file(name, S_IFREG | 0444, gb_dev.root, gb,
+				       &gb_loopback_dbgfs_latency_fops);
+
+	gb->id = ida_alloc(&loopback_ida, GFP_KERNEL);
+	if (gb->id < 0) {
+		retval = gb->id;
+		goto out_debugfs_remove;
+	}
+
+	retval = gb_connection_enable(connection);
+	if (retval)
+		goto out_ida_remove;
+
+	dev = device_create_with_groups(&loopback_class,
+					&connection->bundle->dev,
+					MKDEV(0, 0), gb, loopback_groups,
+					"gb_loopback%d", gb->id);
+	if (IS_ERR(dev)) {
+		retval = PTR_ERR(dev);
+		goto out_connection_disable;
+	}
+	gb->dev = dev;
+
+	/* Allocate kfifo */
+	if (kfifo_alloc(&gb->kfifo_lat, kfifo_depth * sizeof(u32),
+			GFP_KERNEL)) {
+		retval = -ENOMEM;
+		goto out_conn;
+	}
+	/* Fork worker thread */
+	mutex_init(&gb->mutex);
+	gb->task = kthread_run(gb_loopback_fn, gb, "gb_loopback");
+	if (IS_ERR(gb->task)) {
+		retval = PTR_ERR(gb->task);
+		goto out_kfifo;
+	}
+
+	spin_lock_irqsave(&gb_dev.lock, flags);
+	gb_dev.count++;
+	spin_unlock_irqrestore(&gb_dev.lock, flags);
+
+	gb_connection_latency_tag_enable(connection);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+
+out_kfifo:
+	kfifo_free(&gb->kfifo_lat);
+out_conn:
+	device_unregister(dev);
+out_connection_disable:
+	gb_connection_disable(connection);
+out_ida_remove:
+	ida_free(&loopback_ida, gb->id);
+out_debugfs_remove:
+	debugfs_remove(gb->file);
+out_connection_destroy:
+	gb_connection_destroy(connection);
+out_kzalloc:
+	kfree(gb);
+
+	return retval;
+}
+
+static void gb_loopback_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_loopback *gb = greybus_get_drvdata(bundle);
+	unsigned long flags;
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		gb_pm_runtime_get_noresume(bundle);
+
+	gb_connection_disable(gb->connection);
+
+	if (!IS_ERR_OR_NULL(gb->task))
+		kthread_stop(gb->task);
+
+	kfifo_free(&gb->kfifo_lat);
+	gb_connection_latency_tag_disable(gb->connection);
+	debugfs_remove(gb->file);
+
+	/*
+	 * FIXME: gb_loopback_async_wait_all() is redundant now, as connection
+	 * is disabled at the beginning and so we can't have any more
+	 * incoming/outgoing requests.
+	 */
+	gb_loopback_async_wait_all(gb);
+
+	spin_lock_irqsave(&gb_dev.lock, flags);
+	gb_dev.count--;
+	spin_unlock_irqrestore(&gb_dev.lock, flags);
+
+	device_unregister(gb->dev);
+	ida_free(&loopback_ida, gb->id);
+
+	gb_connection_destroy(gb->connection);
+	kfree(gb);
+}
+
+static const struct greybus_bundle_id gb_loopback_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_LOOPBACK) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_loopback_id_table);
+
+static struct greybus_driver gb_loopback_driver = {
+	.name		= "loopback",
+	.probe		= gb_loopback_probe,
+	.disconnect	= gb_loopback_disconnect,
+	.id_table	= gb_loopback_id_table,
+};
+
+static int loopback_init(void)
+{
+	int retval;
+
+	spin_lock_init(&gb_dev.lock);
+	gb_dev.root = debugfs_create_dir("gb_loopback", NULL);
+
+	retval = class_register(&loopback_class);
+	if (retval)
+		goto err;
+
+	retval = greybus_register(&gb_loopback_driver);
+	if (retval)
+		goto err_unregister;
+
+	return 0;
+
+err_unregister:
+	class_unregister(&loopback_class);
+err:
+	debugfs_remove_recursive(gb_dev.root);
+	return retval;
+}
+module_init(loopback_init);
+
+static void __exit loopback_exit(void)
+{
+	debugfs_remove_recursive(gb_dev.root);
+	greybus_deregister(&gb_loopback_driver);
+	class_unregister(&loopback_class);
+	ida_destroy(&loopback_ida);
+}
+module_exit(loopback_exit);
+
+MODULE_DESCRIPTION("Loopback bridge driver for the Greybus loopback module");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/power_supply.c b/drivers/staging/greybus/power_supply.c
new file mode 100644
index 000000000000..a484c0ca058d
--- /dev/null
+++ b/drivers/staging/greybus/power_supply.c
@@ -0,0 +1,1140 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Power Supply driver for a Greybus module.
+ *
+ * Copyright 2014-2015 Google Inc.
+ * Copyright 2014-2015 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/power_supply.h>
+#include <linux/slab.h>
+#include <linux/greybus.h>
+
+#define PROP_MAX 32
+
+struct gb_power_supply_prop {
+	enum power_supply_property	prop;
+	u8				gb_prop;
+	int				val;
+	int				previous_val;
+	bool				is_writeable;
+};
+
+struct gb_power_supply {
+	u8				id;
+	bool				registered;
+	struct power_supply		*psy;
+	struct power_supply_desc	desc;
+	char				name[64];
+	struct gb_power_supplies	*supplies;
+	struct delayed_work		work;
+	char				*manufacturer;
+	char				*model_name;
+	char				*serial_number;
+	u8				type;
+	u8				properties_count;
+	u8				properties_count_str;
+	unsigned long			last_update;
+	u8				cache_invalid;
+	unsigned int			update_interval;
+	bool				changed;
+	struct gb_power_supply_prop	*props;
+	enum power_supply_property	*props_raw;
+	bool				pm_acquired;
+	struct mutex			supply_lock;
+};
+
+struct gb_power_supplies {
+	struct gb_connection	*connection;
+	u8			supplies_count;
+	struct gb_power_supply	*supply;
+	struct mutex		supplies_lock;
+};
+
+#define to_gb_power_supply(x) power_supply_get_drvdata(x)
+
+/*
+ * General power supply properties that could be absent from various reasons,
+ * like kernel versions or vendor specific versions
+ */
+#ifndef POWER_SUPPLY_PROP_VOLTAGE_BOOT
+	#define POWER_SUPPLY_PROP_VOLTAGE_BOOT	-1
+#endif
+#ifndef POWER_SUPPLY_PROP_CURRENT_BOOT
+	#define POWER_SUPPLY_PROP_CURRENT_BOOT	-1
+#endif
+#ifndef POWER_SUPPLY_PROP_CALIBRATE
+	#define POWER_SUPPLY_PROP_CALIBRATE	-1
+#endif
+
+/* cache time in milliseconds, if cache_time is set to 0 cache is disable */
+static unsigned int cache_time = 1000;
+/*
+ * update interval initial and maximum value, between the two will
+ * back-off exponential
+ */
+static unsigned int update_interval_init = 1 * HZ;
+static unsigned int update_interval_max = 30 * HZ;
+
+struct gb_power_supply_changes {
+	enum power_supply_property	prop;
+	u32				tolerance_change;
+	void (*prop_changed)(struct gb_power_supply *gbpsy,
+			     struct gb_power_supply_prop *prop);
+};
+
+static void gb_power_supply_state_change(struct gb_power_supply *gbpsy,
+					 struct gb_power_supply_prop *prop);
+
+static const struct gb_power_supply_changes psy_props_changes[] = {
+	{	.prop			= GB_POWER_SUPPLY_PROP_STATUS,
+		.tolerance_change	= 0,
+		.prop_changed		= gb_power_supply_state_change,
+	},
+	{	.prop			= GB_POWER_SUPPLY_PROP_TEMP,
+		.tolerance_change	= 500,
+		.prop_changed		= NULL,
+	},
+	{	.prop			= GB_POWER_SUPPLY_PROP_ONLINE,
+		.tolerance_change	= 0,
+		.prop_changed		= NULL,
+	},
+};
+
+static int get_psp_from_gb_prop(int gb_prop, enum power_supply_property *psp)
+{
+	int prop;
+
+	switch (gb_prop) {
+	case GB_POWER_SUPPLY_PROP_STATUS:
+		prop = POWER_SUPPLY_PROP_STATUS;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_TYPE:
+		prop = POWER_SUPPLY_PROP_CHARGE_TYPE;
+		break;
+	case GB_POWER_SUPPLY_PROP_HEALTH:
+		prop = POWER_SUPPLY_PROP_HEALTH;
+		break;
+	case GB_POWER_SUPPLY_PROP_PRESENT:
+		prop = POWER_SUPPLY_PROP_PRESENT;
+		break;
+	case GB_POWER_SUPPLY_PROP_ONLINE:
+		prop = POWER_SUPPLY_PROP_ONLINE;
+		break;
+	case GB_POWER_SUPPLY_PROP_AUTHENTIC:
+		prop = POWER_SUPPLY_PROP_AUTHENTIC;
+		break;
+	case GB_POWER_SUPPLY_PROP_TECHNOLOGY:
+		prop = POWER_SUPPLY_PROP_TECHNOLOGY;
+		break;
+	case GB_POWER_SUPPLY_PROP_CYCLE_COUNT:
+		prop = POWER_SUPPLY_PROP_CYCLE_COUNT;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_MAX:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_MIN:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_MIN;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_NOW;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_AVG:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_AVG;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_OCV:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_OCV;
+		break;
+	case GB_POWER_SUPPLY_PROP_VOLTAGE_BOOT:
+		prop = POWER_SUPPLY_PROP_VOLTAGE_BOOT;
+		break;
+	case GB_POWER_SUPPLY_PROP_CURRENT_MAX:
+		prop = POWER_SUPPLY_PROP_CURRENT_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_CURRENT_NOW:
+		prop = POWER_SUPPLY_PROP_CURRENT_NOW;
+		break;
+	case GB_POWER_SUPPLY_PROP_CURRENT_AVG:
+		prop = POWER_SUPPLY_PROP_CURRENT_AVG;
+		break;
+	case GB_POWER_SUPPLY_PROP_CURRENT_BOOT:
+		prop = POWER_SUPPLY_PROP_CURRENT_BOOT;
+		break;
+	case GB_POWER_SUPPLY_PROP_POWER_NOW:
+		prop = POWER_SUPPLY_PROP_POWER_NOW;
+		break;
+	case GB_POWER_SUPPLY_PROP_POWER_AVG:
+		prop = POWER_SUPPLY_PROP_POWER_AVG;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+		prop = POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
+		prop = POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_FULL:
+		prop = POWER_SUPPLY_PROP_CHARGE_FULL;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_EMPTY:
+		prop = POWER_SUPPLY_PROP_CHARGE_EMPTY;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_NOW:
+		prop = POWER_SUPPLY_PROP_CHARGE_NOW;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_AVG:
+		prop = POWER_SUPPLY_PROP_CHARGE_AVG;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_COUNTER:
+		prop = POWER_SUPPLY_PROP_CHARGE_COUNTER;
+		break;
+	case GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+		prop = POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT;
+		break;
+	case GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
+		prop = POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+		prop = POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE;
+		break;
+	case GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
+		prop = POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
+		prop = POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX:
+		prop = POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+		prop = POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT;
+		break;
+	case GB_POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+		prop = POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN;
+		break;
+	case GB_POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
+		prop = POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN;
+		break;
+	case GB_POWER_SUPPLY_PROP_ENERGY_FULL:
+		prop = POWER_SUPPLY_PROP_ENERGY_FULL;
+		break;
+	case GB_POWER_SUPPLY_PROP_ENERGY_EMPTY:
+		prop = POWER_SUPPLY_PROP_ENERGY_EMPTY;
+		break;
+	case GB_POWER_SUPPLY_PROP_ENERGY_NOW:
+		prop = POWER_SUPPLY_PROP_ENERGY_NOW;
+		break;
+	case GB_POWER_SUPPLY_PROP_ENERGY_AVG:
+		prop = POWER_SUPPLY_PROP_ENERGY_AVG;
+		break;
+	case GB_POWER_SUPPLY_PROP_CAPACITY:
+		prop = POWER_SUPPLY_PROP_CAPACITY;
+		break;
+	case GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN:
+		prop = POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN;
+		break;
+	case GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX:
+		prop = POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_CAPACITY_LEVEL:
+		prop = POWER_SUPPLY_PROP_CAPACITY_LEVEL;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP:
+		prop = POWER_SUPPLY_PROP_TEMP;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP_MAX:
+		prop = POWER_SUPPLY_PROP_TEMP_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP_MIN:
+		prop = POWER_SUPPLY_PROP_TEMP_MIN;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
+		prop = POWER_SUPPLY_PROP_TEMP_ALERT_MIN;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
+		prop = POWER_SUPPLY_PROP_TEMP_ALERT_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP_AMBIENT:
+		prop = POWER_SUPPLY_PROP_TEMP_AMBIENT;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN:
+		prop = POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN;
+		break;
+	case GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX:
+		prop = POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX;
+		break;
+	case GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
+		prop = POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW;
+		break;
+	case GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
+		prop = POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG;
+		break;
+	case GB_POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
+		prop = POWER_SUPPLY_PROP_TIME_TO_FULL_NOW;
+		break;
+	case GB_POWER_SUPPLY_PROP_TIME_TO_FULL_AVG:
+		prop = POWER_SUPPLY_PROP_TIME_TO_FULL_AVG;
+		break;
+	case GB_POWER_SUPPLY_PROP_TYPE:
+		prop = POWER_SUPPLY_PROP_TYPE;
+		break;
+	case GB_POWER_SUPPLY_PROP_SCOPE:
+		prop = POWER_SUPPLY_PROP_SCOPE;
+		break;
+	case GB_POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
+		prop = POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT;
+		break;
+	case GB_POWER_SUPPLY_PROP_CALIBRATE:
+		prop = POWER_SUPPLY_PROP_CALIBRATE;
+		break;
+	default:
+		prop = -1;
+		break;
+	}
+
+	if (prop < 0)
+		return prop;
+
+	*psp = (enum power_supply_property)prop;
+
+	return 0;
+}
+
+static struct gb_connection *get_conn_from_psy(struct gb_power_supply *gbpsy)
+{
+	return gbpsy->supplies->connection;
+}
+
+static struct gb_power_supply_prop *get_psy_prop(struct gb_power_supply *gbpsy,
+						 enum power_supply_property psp)
+{
+	int i;
+
+	for (i = 0; i < gbpsy->properties_count; i++)
+		if (gbpsy->props[i].prop == psp)
+			return &gbpsy->props[i];
+	return NULL;
+}
+
+static int is_psy_prop_writeable(struct gb_power_supply *gbpsy,
+				 enum power_supply_property psp)
+{
+	struct gb_power_supply_prop *prop;
+
+	prop = get_psy_prop(gbpsy, psp);
+	if (!prop)
+		return -ENOENT;
+	return prop->is_writeable ? 1 : 0;
+}
+
+static int is_prop_valint(enum power_supply_property psp)
+{
+	return ((psp < POWER_SUPPLY_PROP_MODEL_NAME) ? 1 : 0);
+}
+
+static void next_interval(struct gb_power_supply *gbpsy)
+{
+	if (gbpsy->update_interval == update_interval_max)
+		return;
+
+	/* do some exponential back-off in the update interval */
+	gbpsy->update_interval *= 2;
+	if (gbpsy->update_interval > update_interval_max)
+		gbpsy->update_interval = update_interval_max;
+}
+
+static void __gb_power_supply_changed(struct gb_power_supply *gbpsy)
+{
+	power_supply_changed(gbpsy->psy);
+}
+
+static void gb_power_supply_state_change(struct gb_power_supply *gbpsy,
+					 struct gb_power_supply_prop *prop)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	int ret;
+
+	/*
+	 * Check gbpsy->pm_acquired to make sure only one pair of 'get_sync'
+	 * and 'put_autosuspend' runtime pm call for state property change.
+	 */
+	mutex_lock(&gbpsy->supply_lock);
+
+	if ((prop->val == GB_POWER_SUPPLY_STATUS_CHARGING) &&
+	    !gbpsy->pm_acquired) {
+		ret = gb_pm_runtime_get_sync(connection->bundle);
+		if (ret)
+			dev_err(&connection->bundle->dev,
+				"Fail to set wake lock for charging state\n");
+		else
+			gbpsy->pm_acquired = true;
+	} else {
+		if (gbpsy->pm_acquired) {
+			ret = gb_pm_runtime_put_autosuspend(connection->bundle);
+			if (ret)
+				dev_err(&connection->bundle->dev,
+					"Fail to set wake unlock for none charging\n");
+			else
+				gbpsy->pm_acquired = false;
+		}
+	}
+
+	mutex_unlock(&gbpsy->supply_lock);
+}
+
+static void check_changed(struct gb_power_supply *gbpsy,
+			  struct gb_power_supply_prop *prop)
+{
+	const struct gb_power_supply_changes *psyc;
+	int val = prop->val;
+	int prev_val = prop->previous_val;
+	bool changed = false;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(psy_props_changes); i++) {
+		psyc = &psy_props_changes[i];
+		if (prop->prop == psyc->prop) {
+			if (!psyc->tolerance_change)
+				changed = true;
+			else if (val < prev_val &&
+				 prev_val - val > psyc->tolerance_change)
+				changed = true;
+			else if (val > prev_val &&
+				 val - prev_val > psyc->tolerance_change)
+				changed = true;
+
+			if (changed && psyc->prop_changed)
+				psyc->prop_changed(gbpsy, prop);
+
+			if (changed)
+				gbpsy->changed = true;
+			break;
+		}
+	}
+}
+
+static int total_props(struct gb_power_supply *gbpsy)
+{
+	/* this return the intval plus the strval properties */
+	return (gbpsy->properties_count + gbpsy->properties_count_str);
+}
+
+static void prop_append(struct gb_power_supply *gbpsy,
+			enum power_supply_property prop)
+{
+	enum power_supply_property *new_props_raw;
+
+	gbpsy->properties_count_str++;
+	new_props_raw = krealloc(gbpsy->props_raw, total_props(gbpsy) *
+				 sizeof(enum power_supply_property),
+				 GFP_KERNEL);
+	if (!new_props_raw)
+		return;
+	gbpsy->props_raw = new_props_raw;
+	gbpsy->props_raw[total_props(gbpsy) - 1] = prop;
+}
+
+static int __gb_power_supply_set_name(char *init_name, char *name, size_t len)
+{
+	unsigned int i = 0;
+	int ret = 0;
+	struct power_supply *psy;
+
+	if (!strlen(init_name))
+		init_name = "gb_power_supply";
+	strscpy(name, init_name, len);
+
+	while ((ret < len) && (psy = power_supply_get_by_name(name))) {
+		power_supply_put(psy);
+
+		ret = snprintf(name, len, "%s_%u", init_name, ++i);
+	}
+	if (ret >= len)
+		return -ENOMEM;
+	return i;
+}
+
+static void _gb_power_supply_append_props(struct gb_power_supply *gbpsy)
+{
+	if (strlen(gbpsy->manufacturer))
+		prop_append(gbpsy, POWER_SUPPLY_PROP_MANUFACTURER);
+	if (strlen(gbpsy->model_name))
+		prop_append(gbpsy, POWER_SUPPLY_PROP_MODEL_NAME);
+	if (strlen(gbpsy->serial_number))
+		prop_append(gbpsy, POWER_SUPPLY_PROP_SERIAL_NUMBER);
+}
+
+static int gb_power_supply_description_get(struct gb_power_supply *gbpsy)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	struct gb_power_supply_get_description_request req;
+	struct gb_power_supply_get_description_response resp;
+	int ret;
+
+	req.psy_id = gbpsy->id;
+
+	ret = gb_operation_sync(connection,
+				GB_POWER_SUPPLY_TYPE_GET_DESCRIPTION,
+				&req, sizeof(req), &resp, sizeof(resp));
+	if (ret < 0)
+		return ret;
+
+	gbpsy->manufacturer = kstrndup(resp.manufacturer, PROP_MAX, GFP_KERNEL);
+	if (!gbpsy->manufacturer)
+		return -ENOMEM;
+	gbpsy->model_name = kstrndup(resp.model, PROP_MAX, GFP_KERNEL);
+	if (!gbpsy->model_name)
+		return -ENOMEM;
+	gbpsy->serial_number = kstrndup(resp.serial_number, PROP_MAX,
+					GFP_KERNEL);
+	if (!gbpsy->serial_number)
+		return -ENOMEM;
+
+	gbpsy->type = le16_to_cpu(resp.type);
+	gbpsy->properties_count = resp.properties_count;
+
+	return 0;
+}
+
+static int gb_power_supply_prop_descriptors_get(struct gb_power_supply *gbpsy)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	struct gb_power_supply_get_property_descriptors_request *req;
+	struct gb_power_supply_get_property_descriptors_response *resp;
+	struct gb_operation *op;
+	u8 props_count = gbpsy->properties_count;
+	enum power_supply_property psp;
+	int ret;
+	int i, r = 0;
+
+	if (props_count == 0)
+		return 0;
+
+	op = gb_operation_create(connection,
+				 GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS,
+				 sizeof(*req),
+				 struct_size(resp, props, props_count),
+				 GFP_KERNEL);
+	if (!op)
+		return -ENOMEM;
+
+	req = op->request->payload;
+	req->psy_id = gbpsy->id;
+
+	ret = gb_operation_request_send_sync(op);
+	if (ret < 0)
+		goto out_put_operation;
+
+	resp = op->response->payload;
+
+	/* validate received properties */
+	for (i = 0; i < props_count; i++) {
+		ret = get_psp_from_gb_prop(resp->props[i].property, &psp);
+		if (ret < 0) {
+			dev_warn(&connection->bundle->dev,
+				 "greybus property %u it is not supported by this kernel, dropped\n",
+				 resp->props[i].property);
+			gbpsy->properties_count--;
+		}
+	}
+
+	gbpsy->props = kcalloc(gbpsy->properties_count, sizeof(*gbpsy->props),
+			       GFP_KERNEL);
+	if (!gbpsy->props) {
+		ret = -ENOMEM;
+		goto out_put_operation;
+	}
+
+	gbpsy->props_raw = kcalloc(gbpsy->properties_count,
+				   sizeof(*gbpsy->props_raw), GFP_KERNEL);
+	if (!gbpsy->props_raw) {
+		ret = -ENOMEM;
+		goto out_put_operation;
+	}
+
+	/* Store available properties, skip the ones we do not support */
+	for (i = 0; i < props_count; i++) {
+		ret = get_psp_from_gb_prop(resp->props[i].property, &psp);
+		if (ret < 0) {
+			r++;
+			continue;
+		}
+		gbpsy->props[i - r].prop = psp;
+		gbpsy->props[i - r].gb_prop = resp->props[i].property;
+		gbpsy->props_raw[i - r] = psp;
+		if (resp->props[i].is_writeable)
+			gbpsy->props[i - r].is_writeable = true;
+	}
+
+	/*
+	 * now append the properties that we already got information in the
+	 * get_description operation. (char * ones)
+	 */
+	_gb_power_supply_append_props(gbpsy);
+
+	ret = 0;
+out_put_operation:
+	gb_operation_put(op);
+
+	return ret;
+}
+
+static int __gb_power_supply_property_update(struct gb_power_supply *gbpsy,
+					     enum power_supply_property psp)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	struct gb_power_supply_prop *prop;
+	struct gb_power_supply_get_property_request req;
+	struct gb_power_supply_get_property_response resp;
+	int val;
+	int ret;
+
+	prop = get_psy_prop(gbpsy, psp);
+	if (!prop)
+		return -EINVAL;
+	req.psy_id = gbpsy->id;
+	req.property = prop->gb_prop;
+
+	ret = gb_operation_sync(connection, GB_POWER_SUPPLY_TYPE_GET_PROPERTY,
+				&req, sizeof(req), &resp, sizeof(resp));
+	if (ret < 0)
+		return ret;
+
+	val = le32_to_cpu(resp.prop_val);
+	if (val == prop->val)
+		return 0;
+
+	prop->previous_val = prop->val;
+	prop->val = val;
+
+	check_changed(gbpsy, prop);
+
+	return 0;
+}
+
+static int __gb_power_supply_property_get(struct gb_power_supply *gbpsy,
+					  enum power_supply_property psp,
+					  union power_supply_propval *val)
+{
+	struct gb_power_supply_prop *prop;
+
+	prop = get_psy_prop(gbpsy, psp);
+	if (!prop)
+		return -EINVAL;
+
+	val->intval = prop->val;
+	return 0;
+}
+
+static int __gb_power_supply_property_strval_get(struct gb_power_supply *gbpsy,
+						 enum power_supply_property psp,
+						 union power_supply_propval *val)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_MODEL_NAME:
+		val->strval = gbpsy->model_name;
+		break;
+	case POWER_SUPPLY_PROP_MANUFACTURER:
+		val->strval = gbpsy->manufacturer;
+		break;
+	case POWER_SUPPLY_PROP_SERIAL_NUMBER:
+		val->strval = gbpsy->serial_number;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int _gb_power_supply_property_get(struct gb_power_supply *gbpsy,
+					 enum power_supply_property psp,
+					 union power_supply_propval *val)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	int ret;
+
+	/*
+	 * Properties of type const char *, were already fetched on
+	 * get_description operation and should be cached in gb
+	 */
+	if (is_prop_valint(psp))
+		ret = __gb_power_supply_property_get(gbpsy, psp, val);
+	else
+		ret = __gb_power_supply_property_strval_get(gbpsy, psp, val);
+
+	if (ret < 0)
+		dev_err(&connection->bundle->dev, "get property %u\n", psp);
+
+	return 0;
+}
+
+static int is_cache_valid(struct gb_power_supply *gbpsy)
+{
+	/* check if cache is good enough or it has expired */
+	if (gbpsy->cache_invalid) {
+		gbpsy->cache_invalid = 0;
+		return 0;
+	}
+
+	if (gbpsy->last_update &&
+	    time_is_after_jiffies(gbpsy->last_update +
+				  msecs_to_jiffies(cache_time)))
+		return 1;
+
+	return 0;
+}
+
+static int gb_power_supply_status_get(struct gb_power_supply *gbpsy)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	int ret = 0;
+	int i;
+
+	if (is_cache_valid(gbpsy))
+		return 0;
+
+	ret = gb_pm_runtime_get_sync(connection->bundle);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < gbpsy->properties_count; i++) {
+		ret = __gb_power_supply_property_update(gbpsy,
+							gbpsy->props[i].prop);
+		if (ret < 0)
+			break;
+	}
+
+	if (ret == 0)
+		gbpsy->last_update = jiffies;
+
+	gb_pm_runtime_put_autosuspend(connection->bundle);
+	return ret;
+}
+
+static void gb_power_supply_status_update(struct gb_power_supply *gbpsy)
+{
+	/* check if there a change that need to be reported */
+	gb_power_supply_status_get(gbpsy);
+
+	if (!gbpsy->changed)
+		return;
+
+	gbpsy->update_interval = update_interval_init;
+	__gb_power_supply_changed(gbpsy);
+	gbpsy->changed = false;
+}
+
+static void gb_power_supply_work(struct work_struct *work)
+{
+	struct gb_power_supply *gbpsy = container_of(work,
+						     struct gb_power_supply,
+						     work.work);
+
+	/*
+	 * if the poll interval is not set, disable polling, this is helpful
+	 * specially at unregister time.
+	 */
+	if (!gbpsy->update_interval)
+		return;
+
+	gb_power_supply_status_update(gbpsy);
+	next_interval(gbpsy);
+	schedule_delayed_work(&gbpsy->work, gbpsy->update_interval);
+}
+
+static int get_property(struct power_supply *b,
+			enum power_supply_property psp,
+			union power_supply_propval *val)
+{
+	struct gb_power_supply *gbpsy = to_gb_power_supply(b);
+
+	gb_power_supply_status_get(gbpsy);
+
+	return _gb_power_supply_property_get(gbpsy, psp, val);
+}
+
+static int gb_power_supply_property_set(struct gb_power_supply *gbpsy,
+					enum power_supply_property psp,
+					int val)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	struct gb_power_supply_prop *prop;
+	struct gb_power_supply_set_property_request req;
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(connection->bundle);
+	if (ret)
+		return ret;
+
+	prop = get_psy_prop(gbpsy, psp);
+	if (!prop) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	req.psy_id = gbpsy->id;
+	req.property = prop->gb_prop;
+	req.prop_val = cpu_to_le32((s32)val);
+
+	ret = gb_operation_sync(connection, GB_POWER_SUPPLY_TYPE_SET_PROPERTY,
+				&req, sizeof(req), NULL, 0);
+	if (ret < 0)
+		goto out;
+
+	/* cache immediately the new value */
+	prop->val = val;
+
+out:
+	gb_pm_runtime_put_autosuspend(connection->bundle);
+	return ret;
+}
+
+static int set_property(struct power_supply *b,
+			enum power_supply_property psp,
+			const union power_supply_propval *val)
+{
+	struct gb_power_supply *gbpsy = to_gb_power_supply(b);
+
+	return gb_power_supply_property_set(gbpsy, psp, val->intval);
+}
+
+static int property_is_writeable(struct power_supply *b,
+				 enum power_supply_property psp)
+{
+	struct gb_power_supply *gbpsy = to_gb_power_supply(b);
+
+	return is_psy_prop_writeable(gbpsy, psp);
+}
+
+static int gb_power_supply_register(struct gb_power_supply *gbpsy)
+{
+	struct gb_connection *connection = get_conn_from_psy(gbpsy);
+	struct power_supply_config cfg = {};
+
+	cfg.drv_data = gbpsy;
+
+	gbpsy->desc.name		= gbpsy->name;
+	gbpsy->desc.type		= gbpsy->type;
+	gbpsy->desc.properties		= gbpsy->props_raw;
+	gbpsy->desc.num_properties	= total_props(gbpsy);
+	gbpsy->desc.get_property	= get_property;
+	gbpsy->desc.set_property	= set_property;
+	gbpsy->desc.property_is_writeable = property_is_writeable;
+
+	gbpsy->psy = power_supply_register(&connection->bundle->dev,
+					   &gbpsy->desc, &cfg);
+	return PTR_ERR_OR_ZERO(gbpsy->psy);
+}
+
+static void _gb_power_supply_free(struct gb_power_supply *gbpsy)
+{
+	kfree(gbpsy->serial_number);
+	kfree(gbpsy->model_name);
+	kfree(gbpsy->manufacturer);
+	kfree(gbpsy->props_raw);
+	kfree(gbpsy->props);
+}
+
+static void _gb_power_supply_release(struct gb_power_supply *gbpsy)
+{
+	gbpsy->update_interval = 0;
+
+	cancel_delayed_work_sync(&gbpsy->work);
+
+	if (gbpsy->registered)
+		power_supply_unregister(gbpsy->psy);
+
+	_gb_power_supply_free(gbpsy);
+}
+
+static void _gb_power_supplies_release(struct gb_power_supplies *supplies)
+{
+	int i;
+
+	if (!supplies->supply)
+		return;
+
+	mutex_lock(&supplies->supplies_lock);
+	for (i = 0; i < supplies->supplies_count; i++)
+		_gb_power_supply_release(&supplies->supply[i]);
+	kfree(supplies->supply);
+	mutex_unlock(&supplies->supplies_lock);
+	kfree(supplies);
+}
+
+static int gb_power_supplies_get_count(struct gb_power_supplies *supplies)
+{
+	struct gb_power_supply_get_supplies_response resp;
+	int ret;
+
+	ret = gb_operation_sync(supplies->connection,
+				GB_POWER_SUPPLY_TYPE_GET_SUPPLIES,
+				NULL, 0, &resp, sizeof(resp));
+	if (ret < 0)
+		return ret;
+
+	if  (!resp.supplies_count)
+		return -EINVAL;
+
+	supplies->supplies_count = resp.supplies_count;
+
+	return ret;
+}
+
+static int gb_power_supply_config(struct gb_power_supplies *supplies, int id)
+{
+	struct gb_power_supply *gbpsy = &supplies->supply[id];
+	int ret;
+
+	gbpsy->supplies = supplies;
+	gbpsy->id = id;
+
+	ret = gb_power_supply_description_get(gbpsy);
+	if (ret < 0)
+		return ret;
+
+	return gb_power_supply_prop_descriptors_get(gbpsy);
+}
+
+static int gb_power_supply_enable(struct gb_power_supply *gbpsy)
+{
+	int ret;
+
+	/* guarantee that we have an unique name, before register */
+	ret =  __gb_power_supply_set_name(gbpsy->model_name, gbpsy->name,
+					  sizeof(gbpsy->name));
+	if (ret < 0)
+		return ret;
+
+	mutex_init(&gbpsy->supply_lock);
+
+	ret = gb_power_supply_register(gbpsy);
+	if (ret < 0)
+		return ret;
+
+	gbpsy->update_interval = update_interval_init;
+	INIT_DELAYED_WORK(&gbpsy->work, gb_power_supply_work);
+	schedule_delayed_work(&gbpsy->work, 0);
+
+	/* everything went fine, mark it for release code to know */
+	gbpsy->registered = true;
+
+	return 0;
+}
+
+static int gb_power_supplies_setup(struct gb_power_supplies *supplies)
+{
+	struct gb_connection *connection = supplies->connection;
+	int ret;
+	int i;
+
+	mutex_lock(&supplies->supplies_lock);
+
+	ret = gb_power_supplies_get_count(supplies);
+	if (ret < 0)
+		goto out;
+
+	supplies->supply = kcalloc(supplies->supplies_count,
+				   sizeof(struct gb_power_supply),
+				   GFP_KERNEL);
+
+	if (!supplies->supply) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0; i < supplies->supplies_count; i++) {
+		ret = gb_power_supply_config(supplies, i);
+		if (ret < 0) {
+			dev_err(&connection->bundle->dev,
+				"Fail to configure supplies devices\n");
+			goto out;
+		}
+	}
+out:
+	mutex_unlock(&supplies->supplies_lock);
+	return ret;
+}
+
+static int gb_power_supplies_register(struct gb_power_supplies *supplies)
+{
+	struct gb_connection *connection = supplies->connection;
+	int ret = 0;
+	int i;
+
+	mutex_lock(&supplies->supplies_lock);
+
+	for (i = 0; i < supplies->supplies_count; i++) {
+		ret = gb_power_supply_enable(&supplies->supply[i]);
+		if (ret < 0) {
+			dev_err(&connection->bundle->dev,
+				"Fail to enable supplies devices\n");
+			break;
+		}
+	}
+
+	mutex_unlock(&supplies->supplies_lock);
+	return ret;
+}
+
+static int gb_supplies_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_power_supplies *supplies = gb_connection_get_data(connection);
+	struct gb_power_supply *gbpsy;
+	struct gb_message *request;
+	struct gb_power_supply_event_request *payload;
+	u8 psy_id;
+	u8 event;
+	int ret = 0;
+
+	if (op->type != GB_POWER_SUPPLY_TYPE_EVENT) {
+		dev_err(&connection->bundle->dev,
+			"Unsupported unsolicited event: %u\n", op->type);
+		return -EINVAL;
+	}
+
+	request = op->request;
+
+	if (request->payload_size < sizeof(*payload)) {
+		dev_err(&connection->bundle->dev,
+			"Wrong event size received (%zu < %zu)\n",
+			request->payload_size, sizeof(*payload));
+		return -EINVAL;
+	}
+
+	payload = request->payload;
+	psy_id = payload->psy_id;
+	mutex_lock(&supplies->supplies_lock);
+	if (psy_id >= supplies->supplies_count ||
+	    !supplies->supply[psy_id].registered) {
+		dev_err(&connection->bundle->dev,
+			"Event received for unconfigured power_supply id: %d\n",
+			psy_id);
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
+	event = payload->event;
+	/*
+	 * we will only handle events after setup is done and before release is
+	 * running. For that just check update_interval.
+	 */
+	gbpsy = &supplies->supply[psy_id];
+	if (!gbpsy->update_interval) {
+		ret = -ESHUTDOWN;
+		goto out_unlock;
+	}
+
+	if (event & GB_POWER_SUPPLY_UPDATE) {
+		/*
+		 * we need to make sure we invalidate cache, if not no new
+		 * values for the properties will be fetch and the all propose
+		 * of this event is missed
+		 */
+		gbpsy->cache_invalid = 1;
+		gb_power_supply_status_update(gbpsy);
+	}
+
+out_unlock:
+	mutex_unlock(&supplies->supplies_lock);
+	return ret;
+}
+
+static int gb_power_supply_probe(struct gb_bundle *bundle,
+				 const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_power_supplies *supplies;
+	int ret;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_POWER_SUPPLY)
+		return -ENODEV;
+
+	supplies = kzalloc(sizeof(*supplies), GFP_KERNEL);
+	if (!supplies)
+		return -ENOMEM;
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  gb_supplies_request_handler);
+	if (IS_ERR(connection)) {
+		ret = PTR_ERR(connection);
+		goto out;
+	}
+
+	supplies->connection = connection;
+	gb_connection_set_data(connection, supplies);
+
+	mutex_init(&supplies->supplies_lock);
+
+	greybus_set_drvdata(bundle, supplies);
+
+	/* We aren't ready to receive an incoming request yet */
+	ret = gb_connection_enable_tx(connection);
+	if (ret)
+		goto error_connection_destroy;
+
+	ret = gb_power_supplies_setup(supplies);
+	if (ret < 0)
+		goto error_connection_disable;
+
+	/* We are ready to receive an incoming request now, enable RX as well */
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto error_connection_disable;
+
+	ret = gb_power_supplies_register(supplies);
+	if (ret < 0)
+		goto error_connection_disable;
+
+	gb_pm_runtime_put_autosuspend(bundle);
+	return 0;
+
+error_connection_disable:
+	gb_connection_disable(connection);
+error_connection_destroy:
+	gb_connection_destroy(connection);
+out:
+	_gb_power_supplies_release(supplies);
+	return ret;
+}
+
+static void gb_power_supply_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_power_supplies *supplies = greybus_get_drvdata(bundle);
+
+	gb_connection_disable(supplies->connection);
+	gb_connection_destroy(supplies->connection);
+
+	_gb_power_supplies_release(supplies);
+}
+
+static const struct greybus_bundle_id gb_power_supply_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_POWER_SUPPLY) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_power_supply_id_table);
+
+static struct greybus_driver gb_power_supply_driver = {
+	.name		= "power_supply",
+	.probe		= gb_power_supply_probe,
+	.disconnect	= gb_power_supply_disconnect,
+	.id_table	= gb_power_supply_id_table,
+};
+module_greybus_driver(gb_power_supply_driver);
+
+MODULE_DESCRIPTION("Power Supply driver for a Greybus module");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/pwm.c b/drivers/staging/greybus/pwm.c
new file mode 100644
index 000000000000..1cb7b9089ead
--- /dev/null
+++ b/drivers/staging/greybus/pwm.c
@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PWM Greybus driver.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/pwm.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+
+struct gb_pwm_chip {
+	struct gb_connection	*connection;
+	struct pwm_chip		chip;
+};
+
+static inline struct gb_pwm_chip *pwm_chip_to_gb_pwm_chip(struct pwm_chip *chip)
+{
+	return container_of(chip, struct gb_pwm_chip, chip);
+}
+
+static int gb_pwm_get_npwm(struct gb_connection *connection)
+{
+	struct gb_pwm_count_response response;
+	int ret;
+
+	ret = gb_operation_sync(connection, GB_PWM_TYPE_PWM_COUNT,
+				NULL, 0, &response, sizeof(response));
+	if (ret)
+		return ret;
+
+	/*
+	 * The request returns the highest allowed PWM id parameter. So add one
+	 * to get the number of PWMs.
+	 */
+	return response.count + 1;
+}
+
+static int gb_pwm_activate_operation(struct pwm_chip *chip, u8 which)
+{
+	struct gb_pwm_chip *pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	struct gb_pwm_activate_request request;
+	struct gbphy_device *gbphy_dev;
+	int ret;
+
+	request.which = which;
+
+	gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(pwmc->connection, GB_PWM_TYPE_ACTIVATE,
+				&request, sizeof(request), NULL, 0);
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+
+	return ret;
+}
+
+static int gb_pwm_deactivate_operation(struct pwm_chip *chip, u8 which)
+{
+	struct gb_pwm_chip *pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	struct gb_pwm_deactivate_request request;
+	struct gbphy_device *gbphy_dev;
+	int ret;
+
+	request.which = which;
+
+	gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(pwmc->connection, GB_PWM_TYPE_DEACTIVATE,
+				&request, sizeof(request), NULL, 0);
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+
+	return ret;
+}
+
+static int gb_pwm_config_operation(struct pwm_chip *chip,
+				   u8 which, u32 duty, u32 period)
+{
+	struct gb_pwm_chip *pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	struct gb_pwm_config_request request;
+	struct gbphy_device *gbphy_dev;
+	int ret;
+
+	request.which = which;
+	request.duty = cpu_to_le32(duty);
+	request.period = cpu_to_le32(period);
+
+	gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(pwmc->connection, GB_PWM_TYPE_CONFIG,
+				&request, sizeof(request), NULL, 0);
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+
+	return ret;
+}
+
+static int gb_pwm_set_polarity_operation(struct pwm_chip *chip,
+					 u8 which, u8 polarity)
+{
+	struct gb_pwm_chip *pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	struct gb_pwm_polarity_request request;
+	struct gbphy_device *gbphy_dev;
+	int ret;
+
+	request.which = which;
+	request.polarity = polarity;
+
+	gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(pwmc->connection, GB_PWM_TYPE_POLARITY,
+				&request, sizeof(request), NULL, 0);
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+
+	return ret;
+}
+
+static int gb_pwm_enable_operation(struct pwm_chip *chip, u8 which)
+{
+	struct gb_pwm_chip *pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	struct gb_pwm_enable_request request;
+	struct gbphy_device *gbphy_dev;
+	int ret;
+
+	request.which = which;
+
+	gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(pwmc->connection, GB_PWM_TYPE_ENABLE,
+				&request, sizeof(request), NULL, 0);
+	if (ret)
+		gbphy_runtime_put_autosuspend(gbphy_dev);
+
+	return ret;
+}
+
+static int gb_pwm_disable_operation(struct pwm_chip *chip, u8 which)
+{
+	struct gb_pwm_chip *pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	struct gb_pwm_disable_request request;
+	struct gbphy_device *gbphy_dev;
+	int ret;
+
+	request.which = which;
+
+	ret = gb_operation_sync(pwmc->connection, GB_PWM_TYPE_DISABLE,
+				&request, sizeof(request), NULL, 0);
+
+	gbphy_dev = to_gbphy_dev(pwmchip_parent(chip));
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+
+	return ret;
+}
+
+static int gb_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+	return gb_pwm_activate_operation(chip, pwm->hwpwm);
+};
+
+static void gb_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+	if (pwm_is_enabled(pwm))
+		dev_warn(pwmchip_parent(chip), "freeing PWM device without disabling\n");
+
+	gb_pwm_deactivate_operation(chip, pwm->hwpwm);
+}
+
+static int gb_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
+			const struct pwm_state *state)
+{
+	int err;
+	bool enabled = pwm->state.enabled;
+	u64 period = state->period;
+	u64 duty_cycle = state->duty_cycle;
+
+	/* Set polarity */
+	if (state->polarity != pwm->state.polarity) {
+		if (enabled) {
+			gb_pwm_disable_operation(chip, pwm->hwpwm);
+			enabled = false;
+		}
+		err = gb_pwm_set_polarity_operation(chip, pwm->hwpwm, state->polarity);
+		if (err)
+			return err;
+	}
+
+	if (!state->enabled) {
+		if (enabled)
+			gb_pwm_disable_operation(chip, pwm->hwpwm);
+		return 0;
+	}
+
+	/*
+	 * Set period and duty cycle
+	 *
+	 * PWM privodes 64-bit period and duty_cycle, but greybus only accepts
+	 * 32-bit, so their values have to be limited to U32_MAX.
+	 */
+	if (period > U32_MAX)
+		period = U32_MAX;
+
+	if (duty_cycle > period)
+		duty_cycle = period;
+
+	err = gb_pwm_config_operation(chip, pwm->hwpwm, duty_cycle, period);
+	if (err)
+		return err;
+
+	/* enable/disable */
+	if (!enabled)
+		return gb_pwm_enable_operation(chip, pwm->hwpwm);
+
+	return 0;
+}
+
+static const struct pwm_ops gb_pwm_ops = {
+	.request = gb_pwm_request,
+	.free = gb_pwm_free,
+	.apply = gb_pwm_apply,
+};
+
+static int gb_pwm_probe(struct gbphy_device *gbphy_dev,
+			const struct gbphy_device_id *id)
+{
+	struct gb_connection *connection;
+	struct gb_pwm_chip *pwmc;
+	struct pwm_chip *chip;
+	int ret, npwm;
+
+	connection = gb_connection_create(gbphy_dev->bundle,
+					  le16_to_cpu(gbphy_dev->cport_desc->id),
+					  NULL);
+	if (IS_ERR(connection))
+		return PTR_ERR(connection);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto exit_connection_destroy;
+
+	/* Query number of pwms present */
+	ret = gb_pwm_get_npwm(connection);
+	if (ret < 0)
+		goto exit_connection_disable;
+	npwm = ret;
+
+	chip = pwmchip_alloc(&gbphy_dev->dev, npwm, sizeof(*pwmc));
+	if (IS_ERR(chip)) {
+		ret = PTR_ERR(chip);
+		goto exit_connection_disable;
+	}
+	gb_gbphy_set_data(gbphy_dev, chip);
+
+	pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	pwmc->connection = connection;
+
+	chip->ops = &gb_pwm_ops;
+
+	ret = pwmchip_add(chip);
+	if (ret) {
+		dev_err(&gbphy_dev->dev,
+			"failed to register PWM: %d\n", ret);
+		goto exit_pwmchip_put;
+	}
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+	return 0;
+
+exit_pwmchip_put:
+	pwmchip_put(chip);
+exit_connection_disable:
+	gb_connection_disable(connection);
+exit_connection_destroy:
+	gb_connection_destroy(connection);
+	return ret;
+}
+
+static void gb_pwm_remove(struct gbphy_device *gbphy_dev)
+{
+	struct pwm_chip *chip = gb_gbphy_get_data(gbphy_dev);
+	struct gb_pwm_chip *pwmc = pwm_chip_to_gb_pwm_chip(chip);
+	struct gb_connection *connection = pwmc->connection;
+	int ret;
+
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		gbphy_runtime_get_noresume(gbphy_dev);
+
+	pwmchip_remove(chip);
+	pwmchip_put(chip);
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+}
+
+static const struct gbphy_device_id gb_pwm_id_table[] = {
+	{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_PWM) },
+	{ },
+};
+MODULE_DEVICE_TABLE(gbphy, gb_pwm_id_table);
+
+static struct gbphy_driver pwm_driver = {
+	.name		= "pwm",
+	.probe		= gb_pwm_probe,
+	.remove		= gb_pwm_remove,
+	.id_table	= gb_pwm_id_table,
+};
+
+module_gbphy_driver(pwm_driver);
+MODULE_DESCRIPTION("PWM Greybus driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/raw.c b/drivers/staging/greybus/raw.c
new file mode 100644
index 000000000000..71de6776739c
--- /dev/null
+++ b/drivers/staging/greybus/raw.c
@@ -0,0 +1,381 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus driver for the Raw protocol
+ *
+ * Copyright 2015 Google Inc.
+ * Copyright 2015 Linaro Ltd.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/sizes.h>
+#include <linux/cdev.h>
+#include <linux/fs.h>
+#include <linux/idr.h>
+#include <linux/uaccess.h>
+#include <linux/greybus.h>
+
+struct gb_raw {
+	struct gb_connection *connection;
+
+	struct list_head list;
+	int list_data;
+	struct mutex list_lock;
+	dev_t dev;
+	struct cdev cdev;
+	struct device *device;
+};
+
+struct raw_data {
+	struct list_head entry;
+	u32 len;
+	u8 data[] __counted_by(len);
+};
+
+static const struct class raw_class = {
+	.name = "gb_raw",
+};
+
+static int raw_major;
+static const struct file_operations raw_fops;
+static DEFINE_IDA(minors);
+
+/* Number of minor devices this driver supports */
+#define NUM_MINORS	256
+
+/* Maximum size of any one send data buffer we support */
+#define MAX_PACKET_SIZE	(PAGE_SIZE * 2)
+
+/*
+ * Maximum size of the data in the receive buffer we allow before we start to
+ * drop messages on the floor
+ */
+#define MAX_DATA_SIZE	(MAX_PACKET_SIZE * 8)
+
+/*
+ * Add the raw data message to the list of received messages.
+ */
+static int receive_data(struct gb_raw *raw, u32 len, u8 *data)
+{
+	struct raw_data *raw_data;
+	struct device *dev = &raw->connection->bundle->dev;
+	int retval = 0;
+
+	if (len > MAX_PACKET_SIZE) {
+		dev_err(dev, "Too big of a data packet, rejected\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&raw->list_lock);
+	if ((raw->list_data + len) > MAX_DATA_SIZE) {
+		dev_err(dev, "Too much data in receive buffer, now dropping packets\n");
+		retval = -EINVAL;
+		goto exit;
+	}
+
+	raw_data = kmalloc(struct_size(raw_data, data, len), GFP_KERNEL);
+	if (!raw_data) {
+		retval = -ENOMEM;
+		goto exit;
+	}
+
+	raw->list_data += len;
+	raw_data->len = len;
+	memcpy(&raw_data->data[0], data, len);
+
+	list_add_tail(&raw_data->entry, &raw->list);
+exit:
+	mutex_unlock(&raw->list_lock);
+	return retval;
+}
+
+static int gb_raw_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct device *dev = &connection->bundle->dev;
+	struct gb_raw *raw = greybus_get_drvdata(connection->bundle);
+	struct gb_raw_send_request *receive;
+	u32 len;
+
+	if (op->type != GB_RAW_TYPE_SEND) {
+		dev_err(dev, "unknown request type 0x%02x\n", op->type);
+		return -EINVAL;
+	}
+
+	/* Verify size of payload */
+	if (op->request->payload_size < sizeof(*receive)) {
+		dev_err(dev, "raw receive request too small (%zu < %zu)\n",
+			op->request->payload_size, sizeof(*receive));
+		return -EINVAL;
+	}
+	receive = op->request->payload;
+	len = le32_to_cpu(receive->len);
+	if (len != (int)(op->request->payload_size - sizeof(__le32))) {
+		dev_err(dev, "raw receive request wrong size %d vs %d\n", len,
+			(int)(op->request->payload_size - sizeof(__le32)));
+		return -EINVAL;
+	}
+	if (len == 0) {
+		dev_err(dev, "raw receive request of 0 bytes?\n");
+		return -EINVAL;
+	}
+
+	return receive_data(raw, len, receive->data);
+}
+
+static int gb_raw_send(struct gb_raw *raw, u32 len, const char __user *data)
+{
+	struct gb_connection *connection = raw->connection;
+	struct gb_raw_send_request *request;
+	int retval;
+
+	request = kmalloc(len + sizeof(*request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	if (copy_from_user(&request->data[0], data, len)) {
+		kfree(request);
+		return -EFAULT;
+	}
+
+	request->len = cpu_to_le32(len);
+
+	retval = gb_operation_sync(connection, GB_RAW_TYPE_SEND,
+				   request, len + sizeof(*request),
+				   NULL, 0);
+
+	kfree(request);
+	return retval;
+}
+
+static int gb_raw_probe(struct gb_bundle *bundle,
+			const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_raw *raw;
+	int retval;
+	int minor;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_RAW)
+		return -ENODEV;
+
+	raw = kzalloc(sizeof(*raw), GFP_KERNEL);
+	if (!raw)
+		return -ENOMEM;
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  gb_raw_request_handler);
+	if (IS_ERR(connection)) {
+		retval = PTR_ERR(connection);
+		goto error_free;
+	}
+
+	INIT_LIST_HEAD(&raw->list);
+	mutex_init(&raw->list_lock);
+
+	raw->connection = connection;
+	greybus_set_drvdata(bundle, raw);
+
+	minor = ida_alloc(&minors, GFP_KERNEL);
+	if (minor < 0) {
+		retval = minor;
+		goto error_connection_destroy;
+	}
+
+	raw->dev = MKDEV(raw_major, minor);
+	cdev_init(&raw->cdev, &raw_fops);
+
+	retval = gb_connection_enable(connection);
+	if (retval)
+		goto error_remove_ida;
+
+	retval = cdev_add(&raw->cdev, raw->dev, 1);
+	if (retval)
+		goto error_connection_disable;
+
+	raw->device = device_create(&raw_class, &connection->bundle->dev,
+				    raw->dev, raw, "gb!raw%d", minor);
+	if (IS_ERR(raw->device)) {
+		retval = PTR_ERR(raw->device);
+		goto error_del_cdev;
+	}
+
+	return 0;
+
+error_del_cdev:
+	cdev_del(&raw->cdev);
+
+error_connection_disable:
+	gb_connection_disable(connection);
+
+error_remove_ida:
+	ida_free(&minors, minor);
+
+error_connection_destroy:
+	gb_connection_destroy(connection);
+
+error_free:
+	kfree(raw);
+	return retval;
+}
+
+static void gb_raw_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_raw *raw = greybus_get_drvdata(bundle);
+	struct gb_connection *connection = raw->connection;
+	struct raw_data *raw_data;
+	struct raw_data *temp;
+
+	// FIXME - handle removing a connection when the char device node is open.
+	device_destroy(&raw_class, raw->dev);
+	cdev_del(&raw->cdev);
+	gb_connection_disable(connection);
+	ida_free(&minors, MINOR(raw->dev));
+	gb_connection_destroy(connection);
+
+	mutex_lock(&raw->list_lock);
+	list_for_each_entry_safe(raw_data, temp, &raw->list, entry) {
+		list_del(&raw_data->entry);
+		kfree(raw_data);
+	}
+	mutex_unlock(&raw->list_lock);
+
+	kfree(raw);
+}
+
+/*
+ * Character device node interfaces.
+ *
+ * Note, we are using read/write to only allow a single read/write per message.
+ * This means for read(), you have to provide a big enough buffer for the full
+ * message to be copied into.  If the buffer isn't big enough, the read() will
+ * fail with -ENOSPC.
+ */
+
+static int raw_open(struct inode *inode, struct file *file)
+{
+	struct cdev *cdev = inode->i_cdev;
+	struct gb_raw *raw = container_of(cdev, struct gb_raw, cdev);
+
+	file->private_data = raw;
+	return 0;
+}
+
+static ssize_t raw_write(struct file *file, const char __user *buf,
+			 size_t count, loff_t *ppos)
+{
+	struct gb_raw *raw = file->private_data;
+	int retval;
+
+	if (!count)
+		return 0;
+
+	if (count > MAX_PACKET_SIZE)
+		return -E2BIG;
+
+	retval = gb_raw_send(raw, count, buf);
+	if (retval)
+		return retval;
+
+	return count;
+}
+
+static ssize_t raw_read(struct file *file, char __user *buf, size_t count,
+			loff_t *ppos)
+{
+	struct gb_raw *raw = file->private_data;
+	int retval = 0;
+	struct raw_data *raw_data;
+
+	mutex_lock(&raw->list_lock);
+	if (list_empty(&raw->list))
+		goto exit;
+
+	raw_data = list_first_entry(&raw->list, struct raw_data, entry);
+	if (raw_data->len > count) {
+		retval = -ENOSPC;
+		goto exit;
+	}
+
+	if (copy_to_user(buf, &raw_data->data[0], raw_data->len)) {
+		retval = -EFAULT;
+		goto exit;
+	}
+
+	list_del(&raw_data->entry);
+	raw->list_data -= raw_data->len;
+	retval = raw_data->len;
+	kfree(raw_data);
+
+exit:
+	mutex_unlock(&raw->list_lock);
+	return retval;
+}
+
+static const struct file_operations raw_fops = {
+	.owner		= THIS_MODULE,
+	.write		= raw_write,
+	.read		= raw_read,
+	.open		= raw_open,
+	.llseek		= noop_llseek,
+};
+
+static const struct greybus_bundle_id gb_raw_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_RAW) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_raw_id_table);
+
+static struct greybus_driver gb_raw_driver = {
+	.name		= "raw",
+	.probe		= gb_raw_probe,
+	.disconnect	= gb_raw_disconnect,
+	.id_table	= gb_raw_id_table,
+};
+
+static int raw_init(void)
+{
+	dev_t dev;
+	int retval;
+
+	retval = class_register(&raw_class);
+	if (retval)
+		goto error_class;
+
+	retval = alloc_chrdev_region(&dev, 0, NUM_MINORS, "gb_raw");
+	if (retval < 0)
+		goto error_chrdev;
+
+	raw_major = MAJOR(dev);
+
+	retval = greybus_register(&gb_raw_driver);
+	if (retval)
+		goto error_gb;
+
+	return 0;
+
+error_gb:
+	unregister_chrdev_region(dev, NUM_MINORS);
+error_chrdev:
+	class_unregister(&raw_class);
+error_class:
+	return retval;
+}
+module_init(raw_init);
+
+static void __exit raw_exit(void)
+{
+	greybus_deregister(&gb_raw_driver);
+	unregister_chrdev_region(MKDEV(raw_major, 0), NUM_MINORS);
+	class_unregister(&raw_class);
+	ida_destroy(&minors);
+}
+module_exit(raw_exit);
+
+MODULE_DESCRIPTION("Greybus driver for the Raw protocol");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/sdio.c b/drivers/staging/greybus/sdio.c
new file mode 100644
index 000000000000..5326ea372b24
--- /dev/null
+++ b/drivers/staging/greybus/sdio.c
@@ -0,0 +1,884 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SD/MMC Greybus driver.
+ *
+ * Copyright 2014-2015 Google Inc.
+ * Copyright 2014-2015 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mmc/core.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/scatterlist.h>
+#include <linux/workqueue.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+
+struct gb_sdio_host {
+	struct gb_connection	*connection;
+	struct gbphy_device	*gbphy_dev;
+	struct mmc_host		*mmc;
+	struct mmc_request	*mrq;
+	struct mutex		lock;	/* lock for this host */
+	size_t			data_max;
+	spinlock_t		xfer;	/* lock to cancel ongoing transfer */
+	bool			xfer_stop;
+	struct workqueue_struct	*mrq_workqueue;
+	struct work_struct	mrqwork;
+	u8			queued_events;
+	bool			removed;
+	bool			card_present;
+	bool			read_only;
+};
+
+#define GB_SDIO_RSP_R1_R5_R6_R7	(GB_SDIO_RSP_PRESENT | GB_SDIO_RSP_CRC | \
+				 GB_SDIO_RSP_OPCODE)
+#define GB_SDIO_RSP_R3_R4	(GB_SDIO_RSP_PRESENT)
+#define GB_SDIO_RSP_R2		(GB_SDIO_RSP_PRESENT | GB_SDIO_RSP_CRC | \
+				 GB_SDIO_RSP_136)
+#define GB_SDIO_RSP_R1B		(GB_SDIO_RSP_PRESENT | GB_SDIO_RSP_CRC | \
+				 GB_SDIO_RSP_OPCODE | GB_SDIO_RSP_BUSY)
+
+/* kernel vdd starts at 0x80 and we need to translate to greybus ones 0x01 */
+#define GB_SDIO_VDD_SHIFT	8
+
+#ifndef MMC_CAP2_CORE_RUNTIME_PM
+#define MMC_CAP2_CORE_RUNTIME_PM	0
+#endif
+
+static inline bool single_op(struct mmc_command *cmd)
+{
+	u32 opcode = cmd->opcode;
+
+	return opcode == MMC_WRITE_BLOCK ||
+	       opcode == MMC_READ_SINGLE_BLOCK;
+}
+
+static void _gb_sdio_set_host_caps(struct gb_sdio_host *host, u32 r)
+{
+	u32 caps = 0;
+	u32 caps2 = 0;
+
+	caps = ((r & GB_SDIO_CAP_NONREMOVABLE) ? MMC_CAP_NONREMOVABLE : 0) |
+		((r & GB_SDIO_CAP_4_BIT_DATA) ? MMC_CAP_4_BIT_DATA : 0) |
+		((r & GB_SDIO_CAP_8_BIT_DATA) ? MMC_CAP_8_BIT_DATA : 0) |
+		((r & GB_SDIO_CAP_MMC_HS) ? MMC_CAP_MMC_HIGHSPEED : 0) |
+		((r & GB_SDIO_CAP_SD_HS) ? MMC_CAP_SD_HIGHSPEED : 0) |
+		((r & GB_SDIO_CAP_1_2V_DDR) ? MMC_CAP_1_2V_DDR : 0) |
+		((r & GB_SDIO_CAP_1_8V_DDR) ? MMC_CAP_1_8V_DDR : 0) |
+		((r & GB_SDIO_CAP_POWER_OFF_CARD) ? MMC_CAP_POWER_OFF_CARD : 0) |
+		((r & GB_SDIO_CAP_UHS_SDR12) ? MMC_CAP_UHS_SDR12 : 0) |
+		((r & GB_SDIO_CAP_UHS_SDR25) ? MMC_CAP_UHS_SDR25 : 0) |
+		((r & GB_SDIO_CAP_UHS_SDR50) ? MMC_CAP_UHS_SDR50 : 0) |
+		((r & GB_SDIO_CAP_UHS_SDR104) ? MMC_CAP_UHS_SDR104 : 0) |
+		((r & GB_SDIO_CAP_UHS_DDR50) ? MMC_CAP_UHS_DDR50 : 0) |
+		((r & GB_SDIO_CAP_DRIVER_TYPE_A) ? MMC_CAP_DRIVER_TYPE_A : 0) |
+		((r & GB_SDIO_CAP_DRIVER_TYPE_C) ? MMC_CAP_DRIVER_TYPE_C : 0) |
+		((r & GB_SDIO_CAP_DRIVER_TYPE_D) ? MMC_CAP_DRIVER_TYPE_D : 0);
+
+	caps2 = ((r & GB_SDIO_CAP_HS200_1_2V) ? MMC_CAP2_HS200_1_2V_SDR : 0) |
+		((r & GB_SDIO_CAP_HS400_1_2V) ? MMC_CAP2_HS400_1_2V : 0) |
+		((r & GB_SDIO_CAP_HS400_1_8V) ? MMC_CAP2_HS400_1_8V : 0) |
+		((r & GB_SDIO_CAP_HS200_1_8V) ? MMC_CAP2_HS200_1_8V_SDR : 0);
+
+	host->mmc->caps = caps;
+	host->mmc->caps2 = caps2 | MMC_CAP2_CORE_RUNTIME_PM;
+
+	if (caps & MMC_CAP_NONREMOVABLE)
+		host->card_present = true;
+}
+
+static u32 _gb_sdio_get_host_ocr(u32 ocr)
+{
+	return (((ocr & GB_SDIO_VDD_165_195) ? MMC_VDD_165_195 : 0) |
+		((ocr & GB_SDIO_VDD_20_21) ? MMC_VDD_20_21 : 0) |
+		((ocr & GB_SDIO_VDD_21_22) ? MMC_VDD_21_22 : 0) |
+		((ocr & GB_SDIO_VDD_22_23) ? MMC_VDD_22_23 : 0) |
+		((ocr & GB_SDIO_VDD_23_24) ? MMC_VDD_23_24 : 0) |
+		((ocr & GB_SDIO_VDD_24_25) ? MMC_VDD_24_25 : 0) |
+		((ocr & GB_SDIO_VDD_25_26) ? MMC_VDD_25_26 : 0) |
+		((ocr & GB_SDIO_VDD_26_27) ? MMC_VDD_26_27 : 0) |
+		((ocr & GB_SDIO_VDD_27_28) ? MMC_VDD_27_28 : 0) |
+		((ocr & GB_SDIO_VDD_28_29) ? MMC_VDD_28_29 : 0) |
+		((ocr & GB_SDIO_VDD_29_30) ? MMC_VDD_29_30 : 0) |
+		((ocr & GB_SDIO_VDD_30_31) ? MMC_VDD_30_31 : 0) |
+		((ocr & GB_SDIO_VDD_31_32) ? MMC_VDD_31_32 : 0) |
+		((ocr & GB_SDIO_VDD_32_33) ? MMC_VDD_32_33 : 0) |
+		((ocr & GB_SDIO_VDD_33_34) ? MMC_VDD_33_34 : 0) |
+		((ocr & GB_SDIO_VDD_34_35) ? MMC_VDD_34_35 : 0) |
+		((ocr & GB_SDIO_VDD_35_36) ? MMC_VDD_35_36 : 0)
+		);
+}
+
+static int gb_sdio_get_caps(struct gb_sdio_host *host)
+{
+	struct gb_sdio_get_caps_response response;
+	struct mmc_host *mmc = host->mmc;
+	u16 data_max;
+	u32 blksz;
+	u32 ocr;
+	u32 r;
+	int ret;
+
+	ret = gb_operation_sync(host->connection, GB_SDIO_TYPE_GET_CAPABILITIES,
+				NULL, 0, &response, sizeof(response));
+	if (ret < 0)
+		return ret;
+	r = le32_to_cpu(response.caps);
+
+	_gb_sdio_set_host_caps(host, r);
+
+	/* get the max block size that could fit our payload */
+	data_max = gb_operation_get_payload_size_max(host->connection);
+	data_max = min(data_max - sizeof(struct gb_sdio_transfer_request),
+		       data_max - sizeof(struct gb_sdio_transfer_response));
+
+	blksz = min_t(u16, le16_to_cpu(response.max_blk_size), data_max);
+	blksz = max_t(u32, 512, blksz);
+
+	mmc->max_blk_size = rounddown_pow_of_two(blksz);
+	mmc->max_blk_count = le16_to_cpu(response.max_blk_count);
+	host->data_max = data_max;
+
+	/* get ocr supported values */
+	ocr = _gb_sdio_get_host_ocr(le32_to_cpu(response.ocr));
+	mmc->ocr_avail = ocr;
+	mmc->ocr_avail_sdio = mmc->ocr_avail;
+	mmc->ocr_avail_sd = mmc->ocr_avail;
+	mmc->ocr_avail_mmc = mmc->ocr_avail;
+
+	/* get frequency range values */
+	mmc->f_min = le32_to_cpu(response.f_min);
+	mmc->f_max = le32_to_cpu(response.f_max);
+
+	return 0;
+}
+
+static void _gb_queue_event(struct gb_sdio_host *host, u8 event)
+{
+	if (event & GB_SDIO_CARD_INSERTED)
+		host->queued_events &= ~GB_SDIO_CARD_REMOVED;
+	else if (event & GB_SDIO_CARD_REMOVED)
+		host->queued_events &= ~GB_SDIO_CARD_INSERTED;
+
+	host->queued_events |= event;
+}
+
+static int _gb_sdio_process_events(struct gb_sdio_host *host, u8 event)
+{
+	u8 state_changed = 0;
+
+	if (event & GB_SDIO_CARD_INSERTED) {
+		if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+			return 0;
+		if (host->card_present)
+			return 0;
+		host->card_present = true;
+		state_changed = 1;
+	}
+
+	if (event & GB_SDIO_CARD_REMOVED) {
+		if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+			return 0;
+		if (!(host->card_present))
+			return 0;
+		host->card_present = false;
+		state_changed = 1;
+	}
+
+	if (event & GB_SDIO_WP)
+		host->read_only = true;
+
+	if (state_changed) {
+		dev_info(mmc_dev(host->mmc), "card %s now event\n",
+			 (host->card_present ?  "inserted" : "removed"));
+		mmc_detect_change(host->mmc, 0);
+	}
+
+	return 0;
+}
+
+static int gb_sdio_request_handler(struct gb_operation *op)
+{
+	struct gb_sdio_host *host = gb_connection_get_data(op->connection);
+	struct gb_message *request;
+	struct gb_sdio_event_request *payload;
+	u8 type = op->type;
+	int ret =  0;
+	u8 event;
+
+	if (type != GB_SDIO_TYPE_EVENT) {
+		dev_err(mmc_dev(host->mmc),
+			"unsupported unsolicited event: %u\n", type);
+		return -EINVAL;
+	}
+
+	request = op->request;
+
+	if (request->payload_size < sizeof(*payload)) {
+		dev_err(mmc_dev(host->mmc), "wrong event size received (%zu < %zu)\n",
+			request->payload_size, sizeof(*payload));
+		return -EINVAL;
+	}
+
+	payload = request->payload;
+	event = payload->event;
+
+	if (host->removed)
+		_gb_queue_event(host, event);
+	else
+		ret = _gb_sdio_process_events(host, event);
+
+	return ret;
+}
+
+static int gb_sdio_set_ios(struct gb_sdio_host *host,
+			   struct gb_sdio_set_ios_request *request)
+{
+	int ret;
+
+	ret = gbphy_runtime_get_sync(host->gbphy_dev);
+	if (ret)
+		return ret;
+
+	ret = gb_operation_sync(host->connection, GB_SDIO_TYPE_SET_IOS, request,
+				sizeof(*request), NULL, 0);
+
+	gbphy_runtime_put_autosuspend(host->gbphy_dev);
+
+	return ret;
+}
+
+static int _gb_sdio_send(struct gb_sdio_host *host, struct mmc_data *data,
+			 size_t len, u16 nblocks, off_t skip)
+{
+	struct gb_sdio_transfer_request *request;
+	struct gb_sdio_transfer_response *response;
+	struct gb_operation *operation;
+	struct scatterlist *sg = data->sg;
+	unsigned int sg_len = data->sg_len;
+	size_t copied;
+	u16 send_blksz;
+	u16 send_blocks;
+	int ret;
+
+	WARN_ON(len > host->data_max);
+
+	operation = gb_operation_create(host->connection, GB_SDIO_TYPE_TRANSFER,
+					len + sizeof(*request),
+					sizeof(*response), GFP_KERNEL);
+	if (!operation)
+		return -ENOMEM;
+
+	request = operation->request->payload;
+	request->data_flags = data->flags >> 8;
+	request->data_blocks = cpu_to_le16(nblocks);
+	request->data_blksz = cpu_to_le16(data->blksz);
+
+	copied = sg_pcopy_to_buffer(sg, sg_len, &request->data[0], len, skip);
+
+	if (copied != len) {
+		ret = -EINVAL;
+		goto err_put_operation;
+	}
+
+	ret = gb_operation_request_send_sync(operation);
+	if (ret < 0)
+		goto err_put_operation;
+
+	response = operation->response->payload;
+
+	send_blocks = le16_to_cpu(response->data_blocks);
+	send_blksz = le16_to_cpu(response->data_blksz);
+
+	if (len != send_blksz * send_blocks) {
+		dev_err(mmc_dev(host->mmc), "send: size received: %zu != %d\n",
+			len, send_blksz * send_blocks);
+		ret = -EINVAL;
+	}
+
+err_put_operation:
+	gb_operation_put(operation);
+
+	return ret;
+}
+
+static int _gb_sdio_recv(struct gb_sdio_host *host, struct mmc_data *data,
+			 size_t len, u16 nblocks, off_t skip)
+{
+	struct gb_sdio_transfer_request *request;
+	struct gb_sdio_transfer_response *response;
+	struct gb_operation *operation;
+	struct scatterlist *sg = data->sg;
+	unsigned int sg_len = data->sg_len;
+	size_t copied;
+	u16 recv_blksz;
+	u16 recv_blocks;
+	int ret;
+
+	WARN_ON(len > host->data_max);
+
+	operation = gb_operation_create(host->connection, GB_SDIO_TYPE_TRANSFER,
+					sizeof(*request),
+					len + sizeof(*response), GFP_KERNEL);
+	if (!operation)
+		return -ENOMEM;
+
+	request = operation->request->payload;
+	request->data_flags = data->flags >> 8;
+	request->data_blocks = cpu_to_le16(nblocks);
+	request->data_blksz = cpu_to_le16(data->blksz);
+
+	ret = gb_operation_request_send_sync(operation);
+	if (ret < 0)
+		goto err_put_operation;
+
+	response = operation->response->payload;
+	recv_blocks = le16_to_cpu(response->data_blocks);
+	recv_blksz = le16_to_cpu(response->data_blksz);
+
+	if (len != recv_blksz * recv_blocks) {
+		dev_err(mmc_dev(host->mmc), "recv: size received: %d != %zu\n",
+			recv_blksz * recv_blocks, len);
+		ret = -EINVAL;
+		goto err_put_operation;
+	}
+
+	copied = sg_pcopy_from_buffer(sg, sg_len, &response->data[0], len,
+				      skip);
+	if (copied != len)
+		ret = -EINVAL;
+
+err_put_operation:
+	gb_operation_put(operation);
+
+	return ret;
+}
+
+static int gb_sdio_transfer(struct gb_sdio_host *host, struct mmc_data *data)
+{
+	size_t left, len;
+	off_t skip = 0;
+	int ret = 0;
+	u16 nblocks;
+
+	if (single_op(data->mrq->cmd) && data->blocks > 1) {
+		ret = -ETIMEDOUT;
+		goto out;
+	}
+
+	left = data->blksz * data->blocks;
+
+	while (left) {
+		/* check is a stop transmission is pending */
+		spin_lock(&host->xfer);
+		if (host->xfer_stop) {
+			host->xfer_stop = false;
+			spin_unlock(&host->xfer);
+			ret = -EINTR;
+			goto out;
+		}
+		spin_unlock(&host->xfer);
+		len = min(left, host->data_max);
+		nblocks = len / data->blksz;
+		len = nblocks * data->blksz;
+
+		if (data->flags & MMC_DATA_READ) {
+			ret = _gb_sdio_recv(host, data, len, nblocks, skip);
+			if (ret < 0)
+				goto out;
+		} else {
+			ret = _gb_sdio_send(host, data, len, nblocks, skip);
+			if (ret < 0)
+				goto out;
+		}
+		data->bytes_xfered += len;
+		left -= len;
+		skip += len;
+	}
+
+out:
+	data->error = ret;
+	return ret;
+}
+
+static int gb_sdio_command(struct gb_sdio_host *host, struct mmc_command *cmd)
+{
+	struct gb_sdio_command_request request = {0};
+	struct gb_sdio_command_response response;
+	struct mmc_data *data = host->mrq->data;
+	unsigned int timeout_ms;
+	u8 cmd_flags;
+	u8 cmd_type;
+	int i;
+	int ret;
+
+	switch (mmc_resp_type(cmd)) {
+	case MMC_RSP_NONE:
+		cmd_flags = GB_SDIO_RSP_NONE;
+		break;
+	case MMC_RSP_R1:
+		cmd_flags = GB_SDIO_RSP_R1_R5_R6_R7;
+		break;
+	case MMC_RSP_R1B:
+		cmd_flags = GB_SDIO_RSP_R1B;
+		break;
+	case MMC_RSP_R2:
+		cmd_flags = GB_SDIO_RSP_R2;
+		break;
+	case MMC_RSP_R3:
+		cmd_flags = GB_SDIO_RSP_R3_R4;
+		break;
+	default:
+		dev_err(mmc_dev(host->mmc), "cmd flag invalid 0x%04x\n",
+			mmc_resp_type(cmd));
+		ret = -EINVAL;
+		goto out;
+	}
+
+	switch (mmc_cmd_type(cmd)) {
+	case MMC_CMD_BC:
+		cmd_type = GB_SDIO_CMD_BC;
+		break;
+	case MMC_CMD_BCR:
+		cmd_type = GB_SDIO_CMD_BCR;
+		break;
+	case MMC_CMD_AC:
+		cmd_type = GB_SDIO_CMD_AC;
+		break;
+	case MMC_CMD_ADTC:
+		cmd_type = GB_SDIO_CMD_ADTC;
+		break;
+	default:
+		dev_err(mmc_dev(host->mmc), "cmd type invalid 0x%04x\n",
+			mmc_cmd_type(cmd));
+		ret = -EINVAL;
+		goto out;
+	}
+
+	request.cmd = cmd->opcode;
+	request.cmd_flags = cmd_flags;
+	request.cmd_type = cmd_type;
+	request.cmd_arg = cpu_to_le32(cmd->arg);
+	/* some controllers need to know at command time data details */
+	if (data) {
+		request.data_blocks = cpu_to_le16(data->blocks);
+		request.data_blksz = cpu_to_le16(data->blksz);
+	}
+
+	timeout_ms = cmd->busy_timeout ? cmd->busy_timeout :
+		GB_OPERATION_TIMEOUT_DEFAULT;
+
+	ret = gb_operation_sync_timeout(host->connection, GB_SDIO_TYPE_COMMAND,
+					&request, sizeof(request), &response,
+					sizeof(response), timeout_ms);
+	if (ret < 0)
+		goto out;
+
+	/* no response expected */
+	if (cmd_flags == GB_SDIO_RSP_NONE)
+		goto out;
+
+	/* long response expected */
+	if (cmd_flags & GB_SDIO_RSP_R2)
+		for (i = 0; i < 4; i++)
+			cmd->resp[i] = le32_to_cpu(response.resp[i]);
+	else
+		cmd->resp[0] = le32_to_cpu(response.resp[0]);
+
+out:
+	cmd->error = ret;
+	return ret;
+}
+
+static void gb_sdio_mrq_work(struct work_struct *work)
+{
+	struct gb_sdio_host *host;
+	struct mmc_request *mrq;
+	int ret;
+
+	host = container_of(work, struct gb_sdio_host, mrqwork);
+
+	ret = gbphy_runtime_get_sync(host->gbphy_dev);
+	if (ret)
+		return;
+
+	mutex_lock(&host->lock);
+	mrq = host->mrq;
+	if (!mrq) {
+		mutex_unlock(&host->lock);
+		gbphy_runtime_put_autosuspend(host->gbphy_dev);
+		dev_err(mmc_dev(host->mmc), "mmc request is NULL");
+		return;
+	}
+
+	if (host->removed) {
+		mrq->cmd->error = -ESHUTDOWN;
+		goto done;
+	}
+
+	if (mrq->sbc) {
+		ret = gb_sdio_command(host, mrq->sbc);
+		if (ret < 0)
+			goto done;
+	}
+
+	ret = gb_sdio_command(host, mrq->cmd);
+	if (ret < 0)
+		goto done;
+
+	if (mrq->data) {
+		ret = gb_sdio_transfer(host, mrq->data);
+		if (ret < 0)
+			goto done;
+	}
+
+	if (mrq->stop) {
+		ret = gb_sdio_command(host, mrq->stop);
+		if (ret < 0)
+			goto done;
+	}
+
+done:
+	host->mrq = NULL;
+	mutex_unlock(&host->lock);
+	mmc_request_done(host->mmc, mrq);
+	gbphy_runtime_put_autosuspend(host->gbphy_dev);
+}
+
+static void gb_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
+{
+	struct gb_sdio_host *host = mmc_priv(mmc);
+	struct mmc_command *cmd = mrq->cmd;
+
+	/* Check if it is a cancel to ongoing transfer */
+	if (cmd->opcode == MMC_STOP_TRANSMISSION) {
+		spin_lock(&host->xfer);
+		host->xfer_stop = true;
+		spin_unlock(&host->xfer);
+	}
+
+	mutex_lock(&host->lock);
+
+	WARN_ON(host->mrq);
+	host->mrq = mrq;
+
+	if (host->removed) {
+		mrq->cmd->error = -ESHUTDOWN;
+		goto out;
+	}
+	if (!host->card_present) {
+		mrq->cmd->error = -ENOMEDIUM;
+		goto out;
+	}
+
+	queue_work(host->mrq_workqueue, &host->mrqwork);
+
+	mutex_unlock(&host->lock);
+	return;
+
+out:
+	host->mrq = NULL;
+	mutex_unlock(&host->lock);
+	mmc_request_done(mmc, mrq);
+}
+
+static void gb_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct gb_sdio_host *host = mmc_priv(mmc);
+	struct gb_sdio_set_ios_request request;
+	int ret;
+	u8 power_mode;
+	u8 bus_width;
+	u8 timing;
+	u8 signal_voltage;
+	u8 drv_type;
+	u32 vdd = 0;
+
+	mutex_lock(&host->lock);
+	request.clock = cpu_to_le32(ios->clock);
+
+	if (ios->vdd)
+		vdd = 1 << (ios->vdd - GB_SDIO_VDD_SHIFT);
+	request.vdd = cpu_to_le32(vdd);
+
+	request.bus_mode = ios->bus_mode == MMC_BUSMODE_OPENDRAIN ?
+			    GB_SDIO_BUSMODE_OPENDRAIN :
+			    GB_SDIO_BUSMODE_PUSHPULL;
+
+	switch (ios->power_mode) {
+	case MMC_POWER_OFF:
+	default:
+		power_mode = GB_SDIO_POWER_OFF;
+		break;
+	case MMC_POWER_UP:
+		power_mode = GB_SDIO_POWER_UP;
+		break;
+	case MMC_POWER_ON:
+		power_mode = GB_SDIO_POWER_ON;
+		break;
+	case MMC_POWER_UNDEFINED:
+		power_mode = GB_SDIO_POWER_UNDEFINED;
+		break;
+	}
+	request.power_mode = power_mode;
+
+	switch (ios->bus_width) {
+	case MMC_BUS_WIDTH_1:
+		bus_width = GB_SDIO_BUS_WIDTH_1;
+		break;
+	case MMC_BUS_WIDTH_4:
+	default:
+		bus_width = GB_SDIO_BUS_WIDTH_4;
+		break;
+	case MMC_BUS_WIDTH_8:
+		bus_width = GB_SDIO_BUS_WIDTH_8;
+		break;
+	}
+	request.bus_width = bus_width;
+
+	switch (ios->timing) {
+	case MMC_TIMING_LEGACY:
+	default:
+		timing = GB_SDIO_TIMING_LEGACY;
+		break;
+	case MMC_TIMING_MMC_HS:
+		timing = GB_SDIO_TIMING_MMC_HS;
+		break;
+	case MMC_TIMING_SD_HS:
+		timing = GB_SDIO_TIMING_SD_HS;
+		break;
+	case MMC_TIMING_UHS_SDR12:
+		timing = GB_SDIO_TIMING_UHS_SDR12;
+		break;
+	case MMC_TIMING_UHS_SDR25:
+		timing = GB_SDIO_TIMING_UHS_SDR25;
+		break;
+	case MMC_TIMING_UHS_SDR50:
+		timing = GB_SDIO_TIMING_UHS_SDR50;
+		break;
+	case MMC_TIMING_UHS_SDR104:
+		timing = GB_SDIO_TIMING_UHS_SDR104;
+		break;
+	case MMC_TIMING_UHS_DDR50:
+		timing = GB_SDIO_TIMING_UHS_DDR50;
+		break;
+	case MMC_TIMING_MMC_DDR52:
+		timing = GB_SDIO_TIMING_MMC_DDR52;
+		break;
+	case MMC_TIMING_MMC_HS200:
+		timing = GB_SDIO_TIMING_MMC_HS200;
+		break;
+	case MMC_TIMING_MMC_HS400:
+		timing = GB_SDIO_TIMING_MMC_HS400;
+		break;
+	}
+	request.timing = timing;
+
+	switch (ios->signal_voltage) {
+	case MMC_SIGNAL_VOLTAGE_330:
+		signal_voltage = GB_SDIO_SIGNAL_VOLTAGE_330;
+		break;
+	case MMC_SIGNAL_VOLTAGE_180:
+	default:
+		signal_voltage = GB_SDIO_SIGNAL_VOLTAGE_180;
+		break;
+	case MMC_SIGNAL_VOLTAGE_120:
+		signal_voltage = GB_SDIO_SIGNAL_VOLTAGE_120;
+		break;
+	}
+	request.signal_voltage = signal_voltage;
+
+	switch (ios->drv_type) {
+	case MMC_SET_DRIVER_TYPE_A:
+		drv_type = GB_SDIO_SET_DRIVER_TYPE_A;
+		break;
+	case MMC_SET_DRIVER_TYPE_C:
+		drv_type = GB_SDIO_SET_DRIVER_TYPE_C;
+		break;
+	case MMC_SET_DRIVER_TYPE_D:
+		drv_type = GB_SDIO_SET_DRIVER_TYPE_D;
+		break;
+	case MMC_SET_DRIVER_TYPE_B:
+	default:
+		drv_type = GB_SDIO_SET_DRIVER_TYPE_B;
+		break;
+	}
+	request.drv_type = drv_type;
+
+	ret = gb_sdio_set_ios(host, &request);
+	if (ret < 0)
+		goto out;
+
+	memcpy(&mmc->ios, ios, sizeof(mmc->ios));
+
+out:
+	mutex_unlock(&host->lock);
+}
+
+static int gb_mmc_get_ro(struct mmc_host *mmc)
+{
+	struct gb_sdio_host *host = mmc_priv(mmc);
+
+	mutex_lock(&host->lock);
+	if (host->removed) {
+		mutex_unlock(&host->lock);
+		return -ESHUTDOWN;
+	}
+	mutex_unlock(&host->lock);
+
+	return host->read_only;
+}
+
+static int gb_mmc_get_cd(struct mmc_host *mmc)
+{
+	struct gb_sdio_host *host = mmc_priv(mmc);
+
+	mutex_lock(&host->lock);
+	if (host->removed) {
+		mutex_unlock(&host->lock);
+		return -ESHUTDOWN;
+	}
+	mutex_unlock(&host->lock);
+
+	return host->card_present;
+}
+
+static int gb_mmc_switch_voltage(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	return 0;
+}
+
+static const struct mmc_host_ops gb_sdio_ops = {
+	.request	= gb_mmc_request,
+	.set_ios	= gb_mmc_set_ios,
+	.get_ro		= gb_mmc_get_ro,
+	.get_cd		= gb_mmc_get_cd,
+	.start_signal_voltage_switch	= gb_mmc_switch_voltage,
+};
+
+static int gb_sdio_probe(struct gbphy_device *gbphy_dev,
+			 const struct gbphy_device_id *id)
+{
+	struct gb_connection *connection;
+	struct mmc_host *mmc;
+	struct gb_sdio_host *host;
+	int ret = 0;
+
+	mmc = mmc_alloc_host(sizeof(*host), &gbphy_dev->dev);
+	if (!mmc)
+		return -ENOMEM;
+
+	connection = gb_connection_create(gbphy_dev->bundle,
+					  le16_to_cpu(gbphy_dev->cport_desc->id),
+					  gb_sdio_request_handler);
+	if (IS_ERR(connection)) {
+		ret = PTR_ERR(connection);
+		goto exit_mmc_free;
+	}
+
+	host = mmc_priv(mmc);
+	host->mmc = mmc;
+	host->removed = true;
+
+	host->connection = connection;
+	gb_connection_set_data(connection, host);
+	host->gbphy_dev = gbphy_dev;
+	gb_gbphy_set_data(gbphy_dev, host);
+
+	ret = gb_connection_enable_tx(connection);
+	if (ret)
+		goto exit_connection_destroy;
+
+	ret = gb_sdio_get_caps(host);
+	if (ret < 0)
+		goto exit_connection_disable;
+
+	mmc->ops = &gb_sdio_ops;
+
+	mmc->max_segs = host->mmc->max_blk_count;
+
+	/* for now we make a map 1:1 between max request and segment size */
+	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+	mmc->max_seg_size = mmc->max_req_size;
+
+	mutex_init(&host->lock);
+	spin_lock_init(&host->xfer);
+	host->mrq_workqueue = alloc_workqueue("mmc-%s", 0, 1,
+					      dev_name(&gbphy_dev->dev));
+	if (!host->mrq_workqueue) {
+		ret = -ENOMEM;
+		goto exit_connection_disable;
+	}
+	INIT_WORK(&host->mrqwork, gb_sdio_mrq_work);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto exit_wq_destroy;
+
+	ret = mmc_add_host(mmc);
+	if (ret < 0)
+		goto exit_wq_destroy;
+	host->removed = false;
+	ret = _gb_sdio_process_events(host, host->queued_events);
+	host->queued_events = 0;
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+
+	return ret;
+
+exit_wq_destroy:
+	destroy_workqueue(host->mrq_workqueue);
+exit_connection_disable:
+	gb_connection_disable(connection);
+exit_connection_destroy:
+	gb_connection_destroy(connection);
+exit_mmc_free:
+	mmc_free_host(mmc);
+
+	return ret;
+}
+
+static void gb_sdio_remove(struct gbphy_device *gbphy_dev)
+{
+	struct gb_sdio_host *host = gb_gbphy_get_data(gbphy_dev);
+	struct gb_connection *connection = host->connection;
+	struct mmc_host *mmc;
+	int ret;
+
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		gbphy_runtime_get_noresume(gbphy_dev);
+
+	mutex_lock(&host->lock);
+	host->removed = true;
+	mmc = host->mmc;
+	gb_connection_set_data(connection, NULL);
+	mutex_unlock(&host->lock);
+
+	destroy_workqueue(host->mrq_workqueue);
+	gb_connection_disable_rx(connection);
+	mmc_remove_host(mmc);
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+	mmc_free_host(mmc);
+}
+
+static const struct gbphy_device_id gb_sdio_id_table[] = {
+	{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_SDIO) },
+	{ },
+};
+MODULE_DEVICE_TABLE(gbphy, gb_sdio_id_table);
+
+static struct gbphy_driver sdio_driver = {
+	.name		= "sdio",
+	.probe		= gb_sdio_probe,
+	.remove		= gb_sdio_remove,
+	.id_table	= gb_sdio_id_table,
+};
+
+module_gbphy_driver(sdio_driver);
+MODULE_DESCRIPTION("SD/MMC Greybus driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/spi.c b/drivers/staging/greybus/spi.c
new file mode 100644
index 000000000000..45ea8d1bdd51
--- /dev/null
+++ b/drivers/staging/greybus/spi.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SPI bridge PHY driver.
+ *
+ * Copyright 2014-2016 Google Inc.
+ * Copyright 2014-2016 Linaro Ltd.
+ */
+
+#include <linux/module.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+#include "spilib.h"
+
+static struct spilib_ops *spilib_ops;
+
+static int gb_spi_probe(struct gbphy_device *gbphy_dev,
+			const struct gbphy_device_id *id)
+{
+	struct gb_connection *connection;
+	int ret;
+
+	connection = gb_connection_create(gbphy_dev->bundle,
+					  le16_to_cpu(gbphy_dev->cport_desc->id),
+					  NULL);
+	if (IS_ERR(connection))
+		return PTR_ERR(connection);
+
+	ret = gb_connection_enable(connection);
+	if (ret)
+		goto exit_connection_destroy;
+
+	ret = gb_spilib_master_init(connection, &gbphy_dev->dev, spilib_ops);
+	if (ret)
+		goto exit_connection_disable;
+
+	gb_gbphy_set_data(gbphy_dev, connection);
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+	return 0;
+
+exit_connection_disable:
+	gb_connection_disable(connection);
+exit_connection_destroy:
+	gb_connection_destroy(connection);
+
+	return ret;
+}
+
+static void gb_spi_remove(struct gbphy_device *gbphy_dev)
+{
+	struct gb_connection *connection = gb_gbphy_get_data(gbphy_dev);
+	int ret;
+
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		gbphy_runtime_get_noresume(gbphy_dev);
+
+	gb_spilib_master_exit(connection);
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+}
+
+static const struct gbphy_device_id gb_spi_id_table[] = {
+	{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_SPI) },
+	{ },
+};
+MODULE_DEVICE_TABLE(gbphy, gb_spi_id_table);
+
+static struct gbphy_driver spi_driver = {
+	.name		= "spi",
+	.probe		= gb_spi_probe,
+	.remove		= gb_spi_remove,
+	.id_table	= gb_spi_id_table,
+};
+
+module_gbphy_driver(spi_driver);
+MODULE_DESCRIPTION("Greybus SPI bridge PHY driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/spilib.c b/drivers/staging/greybus/spilib.c
new file mode 100644
index 000000000000..24e9c909fa02
--- /dev/null
+++ b/drivers/staging/greybus/spilib.c
@@ -0,0 +1,571 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus SPI library
+ *
+ * Copyright 2014-2016 Google Inc.
+ * Copyright 2014-2016 Linaro Ltd.
+ */
+
+#include <linux/bitops.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/greybus.h>
+#include <linux/spi/spi.h>
+
+#include "spilib.h"
+
+struct gb_spilib {
+	struct gb_connection	*connection;
+	struct device		*parent;
+	struct spi_transfer	*first_xfer;
+	struct spi_transfer	*last_xfer;
+	struct spilib_ops	*ops;
+	u32			rx_xfer_offset;
+	u32			tx_xfer_offset;
+	u32			last_xfer_size;
+	unsigned int		op_timeout;
+	u16			mode;
+	u16			flags;
+	u32			bits_per_word_mask;
+	u8			num_chipselect;
+	u32			min_speed_hz;
+	u32			max_speed_hz;
+};
+
+#define GB_SPI_STATE_MSG_DONE		((void *)0)
+#define GB_SPI_STATE_MSG_IDLE		((void *)1)
+#define GB_SPI_STATE_MSG_RUNNING	((void *)2)
+#define GB_SPI_STATE_OP_READY		((void *)3)
+#define GB_SPI_STATE_OP_DONE		((void *)4)
+#define GB_SPI_STATE_MSG_ERROR		((void *)-1)
+
+#define XFER_TIMEOUT_TOLERANCE		200
+
+static struct spi_controller *get_controller_from_spi(struct gb_spilib *spi)
+{
+	return gb_connection_get_data(spi->connection);
+}
+
+static int tx_header_fit_operation(u32 tx_size, u32 count, size_t data_max)
+{
+	size_t headers_size;
+
+	data_max -= sizeof(struct gb_spi_transfer_request);
+	headers_size = (count + 1) * sizeof(struct gb_spi_transfer);
+
+	return tx_size + headers_size > data_max ? 0 : 1;
+}
+
+static size_t calc_rx_xfer_size(u32 rx_size, u32 *tx_xfer_size, u32 len,
+				size_t data_max)
+{
+	size_t rx_xfer_size;
+
+	data_max -= sizeof(struct gb_spi_transfer_response);
+
+	if (rx_size + len > data_max)
+		rx_xfer_size = data_max - rx_size;
+	else
+		rx_xfer_size = len;
+
+	/* if this is a write_read, for symmetry read the same as write */
+	if (*tx_xfer_size && rx_xfer_size > *tx_xfer_size)
+		rx_xfer_size = *tx_xfer_size;
+	if (*tx_xfer_size && rx_xfer_size < *tx_xfer_size)
+		*tx_xfer_size = rx_xfer_size;
+
+	return rx_xfer_size;
+}
+
+static size_t calc_tx_xfer_size(u32 tx_size, u32 count, size_t len,
+				size_t data_max)
+{
+	size_t headers_size;
+
+	data_max -= sizeof(struct gb_spi_transfer_request);
+	headers_size = (count + 1) * sizeof(struct gb_spi_transfer);
+
+	if (tx_size + headers_size + len > data_max)
+		return data_max - (tx_size + sizeof(struct gb_spi_transfer));
+
+	return len;
+}
+
+static void clean_xfer_state(struct gb_spilib *spi)
+{
+	spi->first_xfer = NULL;
+	spi->last_xfer = NULL;
+	spi->rx_xfer_offset = 0;
+	spi->tx_xfer_offset = 0;
+	spi->last_xfer_size = 0;
+	spi->op_timeout = 0;
+}
+
+static bool is_last_xfer_done(struct gb_spilib *spi)
+{
+	struct spi_transfer *last_xfer = spi->last_xfer;
+
+	if ((spi->tx_xfer_offset + spi->last_xfer_size == last_xfer->len) ||
+	    (spi->rx_xfer_offset + spi->last_xfer_size == last_xfer->len))
+		return true;
+
+	return false;
+}
+
+static int setup_next_xfer(struct gb_spilib *spi, struct spi_message *msg)
+{
+	struct spi_transfer *last_xfer = spi->last_xfer;
+
+	if (msg->state != GB_SPI_STATE_OP_DONE)
+		return 0;
+
+	/*
+	 * if we transferred all content of the last transfer, reset values and
+	 * check if this was the last transfer in the message
+	 */
+	if (is_last_xfer_done(spi)) {
+		spi->tx_xfer_offset = 0;
+		spi->rx_xfer_offset = 0;
+		spi->op_timeout = 0;
+		if (last_xfer == list_last_entry(&msg->transfers,
+						 struct spi_transfer,
+						 transfer_list))
+			msg->state = GB_SPI_STATE_MSG_DONE;
+		else
+			spi->first_xfer = list_next_entry(last_xfer,
+							  transfer_list);
+		return 0;
+	}
+
+	spi->first_xfer = last_xfer;
+	if (last_xfer->tx_buf)
+		spi->tx_xfer_offset += spi->last_xfer_size;
+
+	if (last_xfer->rx_buf)
+		spi->rx_xfer_offset += spi->last_xfer_size;
+
+	return 0;
+}
+
+static struct spi_transfer *get_next_xfer(struct spi_transfer *xfer,
+					  struct spi_message *msg)
+{
+	if (xfer == list_last_entry(&msg->transfers, struct spi_transfer,
+				    transfer_list))
+		return NULL;
+
+	return list_next_entry(xfer, transfer_list);
+}
+
+/* Routines to transfer data */
+static struct gb_operation *gb_spi_operation_create(struct gb_spilib *spi,
+		struct gb_connection *connection, struct spi_message *msg)
+{
+	struct gb_spi_transfer_request *request;
+	struct spi_device *dev = msg->spi;
+	struct spi_transfer *xfer;
+	struct gb_spi_transfer *gb_xfer;
+	struct gb_operation *operation;
+	u32 tx_size = 0, rx_size = 0, count = 0, xfer_len = 0, request_size;
+	u32 tx_xfer_size = 0, rx_xfer_size = 0, len;
+	u32 total_len = 0;
+	unsigned int xfer_timeout;
+	size_t data_max;
+	void *tx_data;
+
+	data_max = gb_operation_get_payload_size_max(connection);
+	xfer = spi->first_xfer;
+
+	/* Find number of transfers queued and tx/rx length in the message */
+
+	while (msg->state != GB_SPI_STATE_OP_READY) {
+		msg->state = GB_SPI_STATE_MSG_RUNNING;
+		spi->last_xfer = xfer;
+
+		if (!xfer->tx_buf && !xfer->rx_buf) {
+			dev_err(spi->parent,
+				"bufferless transfer, length %u\n", xfer->len);
+			msg->state = GB_SPI_STATE_MSG_ERROR;
+			return NULL;
+		}
+
+		tx_xfer_size = 0;
+		rx_xfer_size = 0;
+
+		if (xfer->tx_buf) {
+			len = xfer->len - spi->tx_xfer_offset;
+			if (!tx_header_fit_operation(tx_size, count, data_max))
+				break;
+			tx_xfer_size = calc_tx_xfer_size(tx_size, count,
+							 len, data_max);
+			spi->last_xfer_size = tx_xfer_size;
+		}
+
+		if (xfer->rx_buf) {
+			len = xfer->len - spi->rx_xfer_offset;
+			rx_xfer_size = calc_rx_xfer_size(rx_size, &tx_xfer_size,
+							 len, data_max);
+			spi->last_xfer_size = rx_xfer_size;
+		}
+
+		tx_size += tx_xfer_size;
+		rx_size += rx_xfer_size;
+
+		total_len += spi->last_xfer_size;
+		count++;
+
+		xfer = get_next_xfer(xfer, msg);
+		if (!xfer || total_len >= data_max)
+			msg->state = GB_SPI_STATE_OP_READY;
+	}
+
+	/*
+	 * In addition to space for all message descriptors we need
+	 * to have enough to hold all tx data.
+	 */
+	request_size = sizeof(*request);
+	request_size += count * sizeof(*gb_xfer);
+	request_size += tx_size;
+
+	/* Response consists only of incoming data */
+	operation = gb_operation_create(connection, GB_SPI_TYPE_TRANSFER,
+					request_size, rx_size, GFP_KERNEL);
+	if (!operation)
+		return NULL;
+
+	request = operation->request->payload;
+	request->count = cpu_to_le16(count);
+	request->mode = dev->mode;
+	request->chip_select = spi_get_chipselect(dev, 0);
+
+	gb_xfer = &request->transfers[0];
+	tx_data = gb_xfer + count;	/* place tx data after last gb_xfer */
+
+	/* Fill in the transfers array */
+	xfer = spi->first_xfer;
+	while (msg->state != GB_SPI_STATE_OP_DONE) {
+		int xfer_delay;
+
+		if (xfer == spi->last_xfer)
+			xfer_len = spi->last_xfer_size;
+		else
+			xfer_len = xfer->len;
+
+		/* make sure we do not timeout in a slow transfer */
+		xfer_timeout = xfer_len * 8 * MSEC_PER_SEC / xfer->speed_hz;
+		xfer_timeout += GB_OPERATION_TIMEOUT_DEFAULT;
+
+		if (xfer_timeout > spi->op_timeout)
+			spi->op_timeout = xfer_timeout;
+
+		gb_xfer->speed_hz = cpu_to_le32(xfer->speed_hz);
+		gb_xfer->len = cpu_to_le32(xfer_len);
+		xfer_delay = spi_delay_to_ns(&xfer->delay, xfer) / 1000;
+		xfer_delay = clamp_t(u16, xfer_delay, 0, U16_MAX);
+		gb_xfer->delay_usecs = cpu_to_le16(xfer_delay);
+		gb_xfer->cs_change = xfer->cs_change;
+		gb_xfer->bits_per_word = xfer->bits_per_word;
+
+		/* Copy tx data */
+		if (xfer->tx_buf) {
+			gb_xfer->xfer_flags |= GB_SPI_XFER_WRITE;
+			memcpy(tx_data, xfer->tx_buf + spi->tx_xfer_offset,
+			       xfer_len);
+			tx_data += xfer_len;
+		}
+
+		if (xfer->rx_buf)
+			gb_xfer->xfer_flags |= GB_SPI_XFER_READ;
+
+		if (xfer == spi->last_xfer) {
+			if (!is_last_xfer_done(spi))
+				gb_xfer->xfer_flags |= GB_SPI_XFER_INPROGRESS;
+			msg->state = GB_SPI_STATE_OP_DONE;
+			continue;
+		}
+
+		gb_xfer++;
+		xfer = get_next_xfer(xfer, msg);
+	}
+
+	msg->actual_length += total_len;
+
+	return operation;
+}
+
+static void gb_spi_decode_response(struct gb_spilib *spi,
+				   struct spi_message *msg,
+				   struct gb_spi_transfer_response *response)
+{
+	struct spi_transfer *xfer = spi->first_xfer;
+	void *rx_data = response->data;
+	u32 xfer_len;
+
+	while (xfer) {
+		/* Copy rx data */
+		if (xfer->rx_buf) {
+			if (xfer == spi->first_xfer)
+				xfer_len = xfer->len - spi->rx_xfer_offset;
+			else if (xfer == spi->last_xfer)
+				xfer_len = spi->last_xfer_size;
+			else
+				xfer_len = xfer->len;
+
+			memcpy(xfer->rx_buf + spi->rx_xfer_offset, rx_data,
+			       xfer_len);
+			rx_data += xfer_len;
+		}
+
+		if (xfer == spi->last_xfer)
+			break;
+
+		xfer = list_next_entry(xfer, transfer_list);
+	}
+}
+
+static int gb_spi_transfer_one_message(struct spi_controller *ctlr,
+				       struct spi_message *msg)
+{
+	struct gb_spilib *spi = spi_controller_get_devdata(ctlr);
+	struct gb_connection *connection = spi->connection;
+	struct gb_spi_transfer_response *response;
+	struct gb_operation *operation;
+	int ret = 0;
+
+	spi->first_xfer = list_first_entry_or_null(&msg->transfers,
+						   struct spi_transfer,
+						   transfer_list);
+	if (!spi->first_xfer) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	msg->state = GB_SPI_STATE_MSG_IDLE;
+
+	while (msg->state != GB_SPI_STATE_MSG_DONE &&
+	       msg->state != GB_SPI_STATE_MSG_ERROR) {
+		operation = gb_spi_operation_create(spi, connection, msg);
+		if (!operation) {
+			msg->state = GB_SPI_STATE_MSG_ERROR;
+			ret = -EINVAL;
+			continue;
+		}
+
+		ret = gb_operation_request_send_sync_timeout(operation,
+							     spi->op_timeout);
+		if (!ret) {
+			response = operation->response->payload;
+			if (response)
+				gb_spi_decode_response(spi, msg, response);
+		} else {
+			dev_err(spi->parent,
+				"transfer operation failed: %d\n", ret);
+			msg->state = GB_SPI_STATE_MSG_ERROR;
+		}
+
+		gb_operation_put(operation);
+		setup_next_xfer(spi, msg);
+	}
+
+out:
+	msg->status = ret;
+	clean_xfer_state(spi);
+	spi_finalize_current_message(ctlr);
+
+	return ret;
+}
+
+static int gb_spi_prepare_transfer_hardware(struct spi_controller *ctlr)
+{
+	struct gb_spilib *spi = spi_controller_get_devdata(ctlr);
+
+	return spi->ops->prepare_transfer_hardware(spi->parent);
+}
+
+static int gb_spi_unprepare_transfer_hardware(struct spi_controller *ctlr)
+{
+	struct gb_spilib *spi = spi_controller_get_devdata(ctlr);
+
+	spi->ops->unprepare_transfer_hardware(spi->parent);
+
+	return 0;
+}
+
+static int gb_spi_setup(struct spi_device *spi)
+{
+	/* Nothing to do for now */
+	return 0;
+}
+
+static void gb_spi_cleanup(struct spi_device *spi)
+{
+	/* Nothing to do for now */
+}
+
+/* Routines to get controller information */
+
+/*
+ * Map Greybus spi mode bits/flags/bpw into Linux ones.
+ * All bits are same for now and so these macro's return same values.
+ */
+#define gb_spi_mode_map(mode) mode
+#define gb_spi_flags_map(flags) flags
+
+static int gb_spi_get_master_config(struct gb_spilib *spi)
+{
+	struct gb_spi_master_config_response response;
+	u16 mode, flags;
+	int ret;
+
+	ret = gb_operation_sync(spi->connection, GB_SPI_TYPE_MASTER_CONFIG,
+				NULL, 0, &response, sizeof(response));
+	if (ret < 0)
+		return ret;
+
+	mode = le16_to_cpu(response.mode);
+	spi->mode = gb_spi_mode_map(mode);
+
+	flags = le16_to_cpu(response.flags);
+	spi->flags = gb_spi_flags_map(flags);
+
+	spi->bits_per_word_mask = le32_to_cpu(response.bits_per_word_mask);
+	spi->num_chipselect = response.num_chipselect;
+
+	spi->min_speed_hz = le32_to_cpu(response.min_speed_hz);
+	spi->max_speed_hz = le32_to_cpu(response.max_speed_hz);
+
+	return 0;
+}
+
+static int gb_spi_setup_device(struct gb_spilib *spi, u8 cs)
+{
+	struct spi_controller *ctlr = get_controller_from_spi(spi);
+	struct gb_spi_device_config_request request;
+	struct gb_spi_device_config_response response;
+	struct spi_board_info spi_board = { {0} };
+	struct spi_device *spidev;
+	int ret;
+	u8 dev_type;
+
+	request.chip_select = cs;
+
+	ret = gb_operation_sync(spi->connection, GB_SPI_TYPE_DEVICE_CONFIG,
+				&request, sizeof(request),
+				&response, sizeof(response));
+	if (ret < 0)
+		return ret;
+
+	dev_type = response.device_type;
+
+	if (dev_type == GB_SPI_SPI_DEV)
+		strscpy(spi_board.modalias, "spidev",
+			sizeof(spi_board.modalias));
+	else if (dev_type == GB_SPI_SPI_NOR)
+		strscpy(spi_board.modalias, "spi-nor",
+			sizeof(spi_board.modalias));
+	else if (dev_type == GB_SPI_SPI_MODALIAS)
+		memcpy(spi_board.modalias, response.name,
+		       sizeof(spi_board.modalias));
+	else
+		return -EINVAL;
+
+	spi_board.mode		= le16_to_cpu(response.mode);
+	spi_board.bus_num	= ctlr->bus_num;
+	spi_board.chip_select	= cs;
+	spi_board.max_speed_hz	= le32_to_cpu(response.max_speed_hz);
+
+	spidev = spi_new_device(ctlr, &spi_board);
+	if (!spidev)
+		return -EINVAL;
+
+	return 0;
+}
+
+int gb_spilib_master_init(struct gb_connection *connection, struct device *dev,
+			  struct spilib_ops *ops)
+{
+	struct gb_spilib *spi;
+	struct spi_controller *ctlr;
+	int ret;
+	u8 i;
+
+	/* Allocate host with space for data */
+	ctlr = spi_alloc_host(dev, sizeof(*spi));
+	if (!ctlr) {
+		dev_err(dev, "cannot alloc SPI host\n");
+		return -ENOMEM;
+	}
+
+	spi = spi_controller_get_devdata(ctlr);
+	spi->connection = connection;
+	gb_connection_set_data(connection, ctlr);
+	spi->parent = dev;
+	spi->ops = ops;
+
+	/* get controller configuration */
+	ret = gb_spi_get_master_config(spi);
+	if (ret)
+		goto exit_spi_put;
+
+	ctlr->bus_num = -1; /* Allow spi-core to allocate it dynamically */
+	ctlr->num_chipselect = spi->num_chipselect;
+	ctlr->mode_bits = spi->mode;
+	ctlr->flags = spi->flags;
+	ctlr->bits_per_word_mask = spi->bits_per_word_mask;
+
+	/* Attach methods */
+	ctlr->cleanup = gb_spi_cleanup;
+	ctlr->setup = gb_spi_setup;
+	ctlr->transfer_one_message = gb_spi_transfer_one_message;
+
+	if (ops && ops->prepare_transfer_hardware) {
+		ctlr->prepare_transfer_hardware =
+			gb_spi_prepare_transfer_hardware;
+	}
+
+	if (ops && ops->unprepare_transfer_hardware) {
+		ctlr->unprepare_transfer_hardware =
+			gb_spi_unprepare_transfer_hardware;
+	}
+
+	ctlr->auto_runtime_pm = true;
+
+	ret = spi_register_controller(ctlr);
+	if (ret < 0)
+		goto exit_spi_put;
+
+	/* now, fetch the devices configuration */
+	for (i = 0; i < spi->num_chipselect; i++) {
+		ret = gb_spi_setup_device(spi, i);
+		if (ret < 0) {
+			dev_err(dev, "failed to allocate spi device %d: %d\n",
+				i, ret);
+			goto exit_spi_unregister;
+		}
+	}
+
+	return 0;
+
+exit_spi_put:
+	spi_controller_put(ctlr);
+
+	return ret;
+
+exit_spi_unregister:
+	spi_unregister_controller(ctlr);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(gb_spilib_master_init);
+
+void gb_spilib_master_exit(struct gb_connection *connection)
+{
+	struct spi_controller *ctlr = gb_connection_get_data(connection);
+
+	spi_unregister_controller(ctlr);
+}
+EXPORT_SYMBOL_GPL(gb_spilib_master_exit);
+
+MODULE_DESCRIPTION("Greybus SPI library");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/spilib.h b/drivers/staging/greybus/spilib.h
new file mode 100644
index 000000000000..9d416839e3be
--- /dev/null
+++ b/drivers/staging/greybus/spilib.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus SPI library header
+ *
+ * copyright 2016 google inc.
+ * copyright 2016 linaro ltd.
+ *
+ * released under the gplv2 only.
+ */
+
+#ifndef __SPILIB_H
+#define __SPILIB_H
+
+struct device;
+struct gb_connection;
+
+struct spilib_ops {
+	int (*prepare_transfer_hardware)(struct device *dev);
+	void (*unprepare_transfer_hardware)(struct device *dev);
+};
+
+int gb_spilib_master_init(struct gb_connection *connection,
+			  struct device *dev, struct spilib_ops *ops);
+void gb_spilib_master_exit(struct gb_connection *connection);
+
+#endif /* __SPILIB_H */
diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
new file mode 100644
index 000000000000..5cece0a6606f
--- /dev/null
+++ b/drivers/staging/greybus/uart.c
@@ -0,0 +1,1029 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * UART driver for the Greybus "generic" UART module.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ *
+ * Heavily based on drivers/usb/class/cdc-acm.c and
+ * drivers/usb/serial/usb-serial.c.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched/signal.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/mutex.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/idr.h>
+#include <linux/fs.h>
+#include <linux/kdev_t.h>
+#include <linux/kfifo.h>
+#include <linux/workqueue.h>
+#include <linux/completion.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+
+#define GB_NUM_MINORS	16	/* 16 is more than enough */
+#define GB_NAME		"ttyGB"
+
+#define GB_UART_WRITE_FIFO_SIZE		PAGE_SIZE
+#define GB_UART_WRITE_ROOM_MARGIN	1	/* leave some space in fifo */
+#define GB_UART_FIRMWARE_CREDITS	4096
+#define GB_UART_CREDIT_WAIT_TIMEOUT_MSEC	10000
+
+struct gb_tty {
+	struct gbphy_device *gbphy_dev;
+	struct tty_port port;
+	void *buffer;
+	size_t buffer_payload_max;
+	struct gb_connection *connection;
+	u16 cport_id;
+	unsigned int minor;
+	unsigned char clocal;
+	bool disconnected;
+	spinlock_t read_lock;
+	spinlock_t write_lock;
+	struct async_icount iocount;
+	struct async_icount oldcount;
+	wait_queue_head_t wioctl;
+	struct mutex mutex;
+	u8 ctrlin;	/* input control lines */
+	u8 ctrlout;	/* output control lines */
+	struct gb_uart_set_line_coding_request line_coding;
+	struct work_struct tx_work;
+	struct kfifo write_fifo;
+	bool close_pending;
+	unsigned int credits;
+	struct completion credits_complete;
+};
+
+static struct tty_driver *gb_tty_driver;
+static DEFINE_IDR(tty_minors);
+static DEFINE_MUTEX(table_lock);
+
+static int gb_uart_receive_data_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_tty *gb_tty = gb_connection_get_data(connection);
+	struct tty_port *port = &gb_tty->port;
+	struct gb_message *request = op->request;
+	struct gb_uart_recv_data_request *receive_data;
+	u16 recv_data_size;
+	int count;
+	unsigned long tty_flags = TTY_NORMAL;
+
+	if (request->payload_size < sizeof(*receive_data)) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"short receive-data request received (%zu < %zu)\n",
+			request->payload_size, sizeof(*receive_data));
+		return -EINVAL;
+	}
+
+	receive_data = op->request->payload;
+	recv_data_size = le16_to_cpu(receive_data->size);
+
+	if (recv_data_size != request->payload_size - sizeof(*receive_data)) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"malformed receive-data request received (%u != %zu)\n",
+			recv_data_size,
+			request->payload_size - sizeof(*receive_data));
+		return -EINVAL;
+	}
+
+	if (!recv_data_size)
+		return -EINVAL;
+
+	if (receive_data->flags) {
+		if (receive_data->flags & GB_UART_RECV_FLAG_BREAK)
+			tty_flags = TTY_BREAK;
+		else if (receive_data->flags & GB_UART_RECV_FLAG_PARITY)
+			tty_flags = TTY_PARITY;
+		else if (receive_data->flags & GB_UART_RECV_FLAG_FRAMING)
+			tty_flags = TTY_FRAME;
+
+		/* overrun is special, not associated with a char */
+		if (receive_data->flags & GB_UART_RECV_FLAG_OVERRUN)
+			tty_insert_flip_char(port, 0, TTY_OVERRUN);
+	}
+	count = tty_insert_flip_string_fixed_flag(port, receive_data->data,
+						  tty_flags, recv_data_size);
+	if (count != recv_data_size) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"UART: RX 0x%08x bytes only wrote 0x%08x\n",
+			recv_data_size, count);
+	}
+	if (count)
+		tty_flip_buffer_push(port);
+	return 0;
+}
+
+static int gb_uart_serial_state_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_tty *gb_tty = gb_connection_get_data(connection);
+	struct gb_message *request = op->request;
+	struct gb_uart_serial_state_request *serial_state;
+
+	if (request->payload_size < sizeof(*serial_state)) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"short serial-state event received (%zu < %zu)\n",
+			request->payload_size, sizeof(*serial_state));
+		return -EINVAL;
+	}
+
+	serial_state = request->payload;
+	gb_tty->ctrlin = serial_state->control;
+
+	return 0;
+}
+
+static int gb_uart_receive_credits_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_tty *gb_tty = gb_connection_get_data(connection);
+	struct gb_message *request = op->request;
+	struct gb_uart_receive_credits_request *credit_request;
+	unsigned long flags;
+	unsigned int incoming_credits;
+	int ret = 0;
+
+	if (request->payload_size < sizeof(*credit_request)) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"short receive_credits event received (%zu < %zu)\n",
+			request->payload_size,
+			sizeof(*credit_request));
+		return -EINVAL;
+	}
+
+	credit_request = request->payload;
+	incoming_credits = le16_to_cpu(credit_request->count);
+
+	spin_lock_irqsave(&gb_tty->write_lock, flags);
+	gb_tty->credits += incoming_credits;
+	if (gb_tty->credits > GB_UART_FIRMWARE_CREDITS) {
+		gb_tty->credits -= incoming_credits;
+		ret = -EINVAL;
+	}
+	spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+
+	if (ret) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"invalid number of incoming credits: %d\n",
+			incoming_credits);
+		return ret;
+	}
+
+	if (!gb_tty->close_pending)
+		schedule_work(&gb_tty->tx_work);
+
+	/*
+	 * the port the tty layer may be waiting for credits
+	 */
+	tty_port_tty_wakeup(&gb_tty->port);
+
+	if (gb_tty->credits == GB_UART_FIRMWARE_CREDITS)
+		complete(&gb_tty->credits_complete);
+
+	return ret;
+}
+
+static int gb_uart_request_handler(struct gb_operation *op)
+{
+	struct gb_connection *connection = op->connection;
+	struct gb_tty *gb_tty = gb_connection_get_data(connection);
+	int type = op->type;
+	int ret;
+
+	switch (type) {
+	case GB_UART_TYPE_RECEIVE_DATA:
+		ret = gb_uart_receive_data_handler(op);
+		break;
+	case GB_UART_TYPE_SERIAL_STATE:
+		ret = gb_uart_serial_state_handler(op);
+		break;
+	case GB_UART_TYPE_RECEIVE_CREDITS:
+		ret = gb_uart_receive_credits_handler(op);
+		break;
+	default:
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"unsupported unsolicited request: 0x%02x\n", type);
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static void  gb_uart_tx_write_work(struct work_struct *work)
+{
+	struct gb_uart_send_data_request *request;
+	struct gb_tty *gb_tty;
+	unsigned long flags;
+	unsigned int send_size;
+	int ret;
+
+	gb_tty = container_of(work, struct gb_tty, tx_work);
+	request = gb_tty->buffer;
+
+	while (1) {
+		if (gb_tty->close_pending)
+			break;
+
+		spin_lock_irqsave(&gb_tty->write_lock, flags);
+		send_size = gb_tty->buffer_payload_max;
+		if (send_size > gb_tty->credits)
+			send_size = gb_tty->credits;
+
+		send_size = kfifo_out_peek(&gb_tty->write_fifo,
+					   &request->data[0],
+					   send_size);
+		if (!send_size) {
+			spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+			break;
+		}
+
+		gb_tty->credits -= send_size;
+		spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+
+		request->size = cpu_to_le16(send_size);
+		ret = gb_operation_sync(gb_tty->connection,
+					GB_UART_TYPE_SEND_DATA,
+					request, sizeof(*request) + send_size,
+					NULL, 0);
+		if (ret) {
+			dev_err(&gb_tty->gbphy_dev->dev,
+				"send data error: %d\n", ret);
+			spin_lock_irqsave(&gb_tty->write_lock, flags);
+			gb_tty->credits += send_size;
+			spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+			if (!gb_tty->close_pending)
+				schedule_work(work);
+			return;
+		}
+
+		spin_lock_irqsave(&gb_tty->write_lock, flags);
+		ret = kfifo_out(&gb_tty->write_fifo, &request->data[0],
+				send_size);
+		spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+
+		tty_port_tty_wakeup(&gb_tty->port);
+	}
+}
+
+static int send_line_coding(struct gb_tty *tty)
+{
+	return gb_operation_sync(tty->connection, GB_UART_TYPE_SET_LINE_CODING,
+				 &tty->line_coding, sizeof(tty->line_coding),
+				 NULL, 0);
+}
+
+static int send_control(struct gb_tty *gb_tty, u8 control)
+{
+	struct gb_uart_set_control_line_state_request request;
+
+	request.control = control;
+	return gb_operation_sync(gb_tty->connection,
+				 GB_UART_TYPE_SET_CONTROL_LINE_STATE,
+				 &request, sizeof(request), NULL, 0);
+}
+
+static int send_break(struct gb_tty *gb_tty, u8 state)
+{
+	struct gb_uart_set_break_request request;
+
+	if ((state != 0) && (state != 1)) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"invalid break state of %d\n", state);
+		return -EINVAL;
+	}
+
+	request.state = state;
+	return gb_operation_sync(gb_tty->connection, GB_UART_TYPE_SEND_BREAK,
+				 &request, sizeof(request), NULL, 0);
+}
+
+static int gb_uart_wait_for_all_credits(struct gb_tty *gb_tty)
+{
+	int ret;
+
+	if (gb_tty->credits == GB_UART_FIRMWARE_CREDITS)
+		return 0;
+
+	ret = wait_for_completion_timeout(&gb_tty->credits_complete,
+			msecs_to_jiffies(GB_UART_CREDIT_WAIT_TIMEOUT_MSEC));
+	if (!ret) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"time out waiting for credits\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int gb_uart_flush(struct gb_tty *gb_tty, u8 flags)
+{
+	struct gb_uart_serial_flush_request request;
+
+	request.flags = flags;
+	return gb_operation_sync(gb_tty->connection, GB_UART_TYPE_FLUSH_FIFOS,
+				 &request, sizeof(request), NULL, 0);
+}
+
+static struct gb_tty *get_gb_by_minor(unsigned int minor)
+{
+	struct gb_tty *gb_tty;
+
+	mutex_lock(&table_lock);
+	gb_tty = idr_find(&tty_minors, minor);
+	if (gb_tty) {
+		mutex_lock(&gb_tty->mutex);
+		if (gb_tty->disconnected) {
+			mutex_unlock(&gb_tty->mutex);
+			gb_tty = NULL;
+		} else {
+			tty_port_get(&gb_tty->port);
+			mutex_unlock(&gb_tty->mutex);
+		}
+	}
+	mutex_unlock(&table_lock);
+	return gb_tty;
+}
+
+static int alloc_minor(struct gb_tty *gb_tty)
+{
+	int minor;
+
+	mutex_lock(&table_lock);
+	minor = idr_alloc(&tty_minors, gb_tty, 0, GB_NUM_MINORS, GFP_KERNEL);
+	mutex_unlock(&table_lock);
+	if (minor >= 0)
+		gb_tty->minor = minor;
+	return minor;
+}
+
+static void release_minor(struct gb_tty *gb_tty)
+{
+	int minor = gb_tty->minor;
+
+	gb_tty->minor = 0;	/* Maybe should use an invalid value instead */
+	mutex_lock(&table_lock);
+	idr_remove(&tty_minors, minor);
+	mutex_unlock(&table_lock);
+}
+
+static int gb_tty_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty;
+	int retval;
+
+	gb_tty = get_gb_by_minor(tty->index);
+	if (!gb_tty)
+		return -ENODEV;
+
+	retval = tty_standard_install(driver, tty);
+	if (retval)
+		goto error;
+
+	tty->driver_data = gb_tty;
+	return 0;
+error:
+	tty_port_put(&gb_tty->port);
+	return retval;
+}
+
+static int gb_tty_open(struct tty_struct *tty, struct file *file)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	return tty_port_open(&gb_tty->port, tty, file);
+}
+
+static void gb_tty_close(struct tty_struct *tty, struct file *file)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	tty_port_close(&gb_tty->port, tty, file);
+}
+
+static void gb_tty_cleanup(struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	tty_port_put(&gb_tty->port);
+}
+
+static void gb_tty_hangup(struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	tty_port_hangup(&gb_tty->port);
+}
+
+static ssize_t gb_tty_write(struct tty_struct *tty, const u8 *buf, size_t count)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	count =  kfifo_in_spinlocked(&gb_tty->write_fifo, buf, count,
+				     &gb_tty->write_lock);
+	if (count && !gb_tty->close_pending)
+		schedule_work(&gb_tty->tx_work);
+
+	return count;
+}
+
+static unsigned int gb_tty_write_room(struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+	unsigned long flags;
+	int room;
+
+	spin_lock_irqsave(&gb_tty->write_lock, flags);
+	room = kfifo_avail(&gb_tty->write_fifo);
+	spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+
+	room -= GB_UART_WRITE_ROOM_MARGIN;
+	if (room < 0)
+		return 0;
+
+	return room;
+}
+
+static unsigned int gb_tty_chars_in_buffer(struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+	unsigned long flags;
+	unsigned int chars;
+
+	spin_lock_irqsave(&gb_tty->write_lock, flags);
+	chars = kfifo_len(&gb_tty->write_fifo);
+	if (gb_tty->credits < GB_UART_FIRMWARE_CREDITS)
+		chars += GB_UART_FIRMWARE_CREDITS - gb_tty->credits;
+	spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+
+	return chars;
+}
+
+static int gb_tty_break_ctl(struct tty_struct *tty, int state)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	return send_break(gb_tty, state ? 1 : 0);
+}
+
+static void gb_tty_set_termios(struct tty_struct *tty,
+			       const struct ktermios *termios_old)
+{
+	struct gb_uart_set_line_coding_request newline;
+	struct gb_tty *gb_tty = tty->driver_data;
+	struct ktermios *termios = &tty->termios;
+	u8 newctrl = gb_tty->ctrlout;
+
+	newline.rate = cpu_to_le32(tty_get_baud_rate(tty));
+	newline.format = termios->c_cflag & CSTOPB ?
+				GB_SERIAL_2_STOP_BITS : GB_SERIAL_1_STOP_BITS;
+	newline.parity = termios->c_cflag & PARENB ?
+				(termios->c_cflag & PARODD ? 1 : 2) +
+				(termios->c_cflag & CMSPAR ? 2 : 0) : 0;
+
+	newline.data_bits = tty_get_char_size(termios->c_cflag);
+
+	/* FIXME: needs to clear unsupported bits in the termios */
+	gb_tty->clocal = ((termios->c_cflag & CLOCAL) != 0);
+
+	if (C_BAUD(tty) == B0) {
+		newline.rate = gb_tty->line_coding.rate;
+		newctrl &= ~(GB_UART_CTRL_DTR | GB_UART_CTRL_RTS);
+	} else if (termios_old && (termios_old->c_cflag & CBAUD) == B0) {
+		newctrl |= (GB_UART_CTRL_DTR | GB_UART_CTRL_RTS);
+	}
+
+	if (newctrl != gb_tty->ctrlout) {
+		gb_tty->ctrlout = newctrl;
+		send_control(gb_tty, newctrl);
+	}
+
+	if (C_CRTSCTS(tty) && C_BAUD(tty) != B0)
+		newline.flow_control = GB_SERIAL_AUTO_RTSCTS_EN;
+	else
+		newline.flow_control = 0;
+
+	if (memcmp(&gb_tty->line_coding, &newline, sizeof(newline))) {
+		memcpy(&gb_tty->line_coding, &newline, sizeof(newline));
+		send_line_coding(gb_tty);
+	}
+}
+
+static int gb_tty_tiocmget(struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	return (gb_tty->ctrlout & GB_UART_CTRL_DTR ? TIOCM_DTR : 0) |
+	       (gb_tty->ctrlout & GB_UART_CTRL_RTS ? TIOCM_RTS : 0) |
+	       (gb_tty->ctrlin  & GB_UART_CTRL_DSR ? TIOCM_DSR : 0) |
+	       (gb_tty->ctrlin  & GB_UART_CTRL_RI  ? TIOCM_RI  : 0) |
+	       (gb_tty->ctrlin  & GB_UART_CTRL_DCD ? TIOCM_CD  : 0) |
+	       TIOCM_CTS;
+}
+
+static int gb_tty_tiocmset(struct tty_struct *tty, unsigned int set,
+			   unsigned int clear)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+	u8 newctrl = gb_tty->ctrlout;
+
+	set = (set & TIOCM_DTR ? GB_UART_CTRL_DTR : 0) |
+	      (set & TIOCM_RTS ? GB_UART_CTRL_RTS : 0);
+	clear = (clear & TIOCM_DTR ? GB_UART_CTRL_DTR : 0) |
+		(clear & TIOCM_RTS ? GB_UART_CTRL_RTS : 0);
+
+	newctrl = (newctrl & ~clear) | set;
+	if (gb_tty->ctrlout == newctrl)
+		return 0;
+
+	gb_tty->ctrlout = newctrl;
+	return send_control(gb_tty, newctrl);
+}
+
+static void gb_tty_throttle(struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+	unsigned char stop_char;
+	int retval;
+
+	if (I_IXOFF(tty)) {
+		stop_char = STOP_CHAR(tty);
+		retval = gb_tty_write(tty, &stop_char, 1);
+		if (retval <= 0)
+			return;
+	}
+
+	if (tty->termios.c_cflag & CRTSCTS) {
+		gb_tty->ctrlout &= ~GB_UART_CTRL_RTS;
+		retval = send_control(gb_tty, gb_tty->ctrlout);
+	}
+}
+
+static void gb_tty_unthrottle(struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+	unsigned char start_char;
+	int retval;
+
+	if (I_IXOFF(tty)) {
+		start_char = START_CHAR(tty);
+		retval = gb_tty_write(tty, &start_char, 1);
+		if (retval <= 0)
+			return;
+	}
+
+	if (tty->termios.c_cflag & CRTSCTS) {
+		gb_tty->ctrlout |= GB_UART_CTRL_RTS;
+		retval = send_control(gb_tty, gb_tty->ctrlout);
+	}
+}
+
+static int get_serial_info(struct tty_struct *tty,
+			   struct serial_struct *ss)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	ss->line = gb_tty->minor;
+	mutex_lock(&gb_tty->port.mutex);
+	ss->close_delay = jiffies_to_msecs(gb_tty->port.close_delay) / 10;
+	ss->closing_wait =
+		gb_tty->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+		ASYNC_CLOSING_WAIT_NONE :
+		jiffies_to_msecs(gb_tty->port.closing_wait) / 10;
+	mutex_unlock(&gb_tty->port.mutex);
+
+	return 0;
+}
+
+static int set_serial_info(struct tty_struct *tty,
+			   struct serial_struct *ss)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+	unsigned int closing_wait;
+	unsigned int close_delay;
+	int retval = 0;
+
+	close_delay = msecs_to_jiffies(ss->close_delay * 10);
+	closing_wait = ss->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+			ASYNC_CLOSING_WAIT_NONE :
+			msecs_to_jiffies(ss->closing_wait * 10);
+
+	mutex_lock(&gb_tty->port.mutex);
+	if (!capable(CAP_SYS_ADMIN)) {
+		if ((close_delay != gb_tty->port.close_delay) ||
+		    (closing_wait != gb_tty->port.closing_wait))
+			retval = -EPERM;
+	} else {
+		gb_tty->port.close_delay = close_delay;
+		gb_tty->port.closing_wait = closing_wait;
+	}
+	mutex_unlock(&gb_tty->port.mutex);
+	return retval;
+}
+
+static int wait_serial_change(struct gb_tty *gb_tty, unsigned long arg)
+{
+	int retval = 0;
+	DECLARE_WAITQUEUE(wait, current);
+	struct async_icount old;
+	struct async_icount new;
+
+	if (!(arg & (TIOCM_DSR | TIOCM_RI | TIOCM_CD)))
+		return -EINVAL;
+
+	do {
+		spin_lock_irq(&gb_tty->read_lock);
+		old = gb_tty->oldcount;
+		new = gb_tty->iocount;
+		gb_tty->oldcount = new;
+		spin_unlock_irq(&gb_tty->read_lock);
+
+		if ((arg & TIOCM_DSR) && (old.dsr != new.dsr))
+			break;
+		if ((arg & TIOCM_CD) && (old.dcd != new.dcd))
+			break;
+		if ((arg & TIOCM_RI) && (old.rng != new.rng))
+			break;
+
+		add_wait_queue(&gb_tty->wioctl, &wait);
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule();
+		remove_wait_queue(&gb_tty->wioctl, &wait);
+		if (gb_tty->disconnected) {
+			if (arg & TIOCM_CD)
+				break;
+			retval = -ENODEV;
+		} else if (signal_pending(current)) {
+			retval = -ERESTARTSYS;
+		}
+	} while (!retval);
+
+	return retval;
+}
+
+static int gb_tty_get_icount(struct tty_struct *tty,
+			     struct serial_icounter_struct *icount)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	icount->dsr = gb_tty->iocount.dsr;
+	icount->rng = gb_tty->iocount.rng;
+	icount->dcd = gb_tty->iocount.dcd;
+	icount->frame = gb_tty->iocount.frame;
+	icount->overrun = gb_tty->iocount.overrun;
+	icount->parity = gb_tty->iocount.parity;
+	icount->brk = gb_tty->iocount.brk;
+
+	return 0;
+}
+
+static int gb_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
+			unsigned long arg)
+{
+	struct gb_tty *gb_tty = tty->driver_data;
+
+	switch (cmd) {
+	case TIOCMIWAIT:
+		return wait_serial_change(gb_tty, arg);
+	}
+
+	return -ENOIOCTLCMD;
+}
+
+static void gb_tty_dtr_rts(struct tty_port *port, bool active)
+{
+	struct gb_tty *gb_tty;
+	u8 newctrl;
+
+	gb_tty = container_of(port, struct gb_tty, port);
+	newctrl = gb_tty->ctrlout;
+
+	if (active)
+		newctrl |= (GB_UART_CTRL_DTR | GB_UART_CTRL_RTS);
+	else
+		newctrl &= ~(GB_UART_CTRL_DTR | GB_UART_CTRL_RTS);
+
+	gb_tty->ctrlout = newctrl;
+	send_control(gb_tty, newctrl);
+}
+
+static int gb_tty_port_activate(struct tty_port *port,
+				struct tty_struct *tty)
+{
+	struct gb_tty *gb_tty;
+
+	gb_tty = container_of(port, struct gb_tty, port);
+
+	return gbphy_runtime_get_sync(gb_tty->gbphy_dev);
+}
+
+static void gb_tty_port_shutdown(struct tty_port *port)
+{
+	struct gb_tty *gb_tty;
+	unsigned long flags;
+	int ret;
+
+	gb_tty = container_of(port, struct gb_tty, port);
+
+	gb_tty->close_pending = true;
+
+	cancel_work_sync(&gb_tty->tx_work);
+
+	spin_lock_irqsave(&gb_tty->write_lock, flags);
+	kfifo_reset_out(&gb_tty->write_fifo);
+	spin_unlock_irqrestore(&gb_tty->write_lock, flags);
+
+	if (gb_tty->credits == GB_UART_FIRMWARE_CREDITS)
+		goto out;
+
+	ret = gb_uart_flush(gb_tty, GB_SERIAL_FLAG_FLUSH_TRANSMITTER);
+	if (ret) {
+		dev_err(&gb_tty->gbphy_dev->dev,
+			"error flushing transmitter: %d\n", ret);
+	}
+
+	gb_uart_wait_for_all_credits(gb_tty);
+
+out:
+	gb_tty->close_pending = false;
+
+	gbphy_runtime_put_autosuspend(gb_tty->gbphy_dev);
+}
+
+static void gb_tty_port_destruct(struct tty_port *port)
+{
+	struct gb_tty *gb_tty = container_of(port, struct gb_tty, port);
+
+	if (gb_tty->minor != GB_NUM_MINORS)
+		release_minor(gb_tty);
+	kfifo_free(&gb_tty->write_fifo);
+	kfree(gb_tty->buffer);
+	kfree(gb_tty);
+}
+
+static const struct tty_operations gb_ops = {
+	.install =		gb_tty_install,
+	.open =			gb_tty_open,
+	.close =		gb_tty_close,
+	.cleanup =		gb_tty_cleanup,
+	.hangup =		gb_tty_hangup,
+	.write =		gb_tty_write,
+	.write_room =		gb_tty_write_room,
+	.ioctl =		gb_tty_ioctl,
+	.throttle =		gb_tty_throttle,
+	.unthrottle =		gb_tty_unthrottle,
+	.chars_in_buffer =	gb_tty_chars_in_buffer,
+	.break_ctl =		gb_tty_break_ctl,
+	.set_termios =		gb_tty_set_termios,
+	.tiocmget =		gb_tty_tiocmget,
+	.tiocmset =		gb_tty_tiocmset,
+	.get_icount =		gb_tty_get_icount,
+	.set_serial =		set_serial_info,
+	.get_serial =		get_serial_info,
+};
+
+static const struct tty_port_operations gb_port_ops = {
+	.dtr_rts =		gb_tty_dtr_rts,
+	.activate =		gb_tty_port_activate,
+	.shutdown =		gb_tty_port_shutdown,
+	.destruct =		gb_tty_port_destruct,
+};
+
+static int gb_uart_probe(struct gbphy_device *gbphy_dev,
+			 const struct gbphy_device_id *id)
+{
+	struct gb_connection *connection;
+	size_t max_payload;
+	struct gb_tty *gb_tty;
+	struct device *tty_dev;
+	int retval;
+	int minor;
+
+	connection = gb_connection_create(gbphy_dev->bundle,
+					  le16_to_cpu(gbphy_dev->cport_desc->id),
+					  gb_uart_request_handler);
+	if (IS_ERR(connection))
+		return PTR_ERR(connection);
+
+	max_payload = gb_operation_get_payload_size_max(connection);
+	if (max_payload < sizeof(struct gb_uart_send_data_request)) {
+		retval = -EINVAL;
+		goto exit_connection_destroy;
+	}
+
+	gb_tty = kzalloc(sizeof(*gb_tty), GFP_KERNEL);
+	if (!gb_tty) {
+		retval = -ENOMEM;
+		goto exit_connection_destroy;
+	}
+
+	tty_port_init(&gb_tty->port);
+	gb_tty->port.ops = &gb_port_ops;
+	gb_tty->minor = GB_NUM_MINORS;
+
+	gb_tty->buffer_payload_max = max_payload -
+			sizeof(struct gb_uart_send_data_request);
+
+	gb_tty->buffer = kzalloc(gb_tty->buffer_payload_max, GFP_KERNEL);
+	if (!gb_tty->buffer) {
+		retval = -ENOMEM;
+		goto exit_put_port;
+	}
+
+	INIT_WORK(&gb_tty->tx_work, gb_uart_tx_write_work);
+
+	retval = kfifo_alloc(&gb_tty->write_fifo, GB_UART_WRITE_FIFO_SIZE,
+			     GFP_KERNEL);
+	if (retval)
+		goto exit_put_port;
+
+	gb_tty->credits = GB_UART_FIRMWARE_CREDITS;
+	init_completion(&gb_tty->credits_complete);
+
+	minor = alloc_minor(gb_tty);
+	if (minor < 0) {
+		if (minor == -ENOSPC) {
+			dev_err(&gbphy_dev->dev,
+				"no more free minor numbers\n");
+			retval = -ENODEV;
+		} else {
+			retval = minor;
+		}
+		goto exit_put_port;
+	}
+
+	gb_tty->minor = minor;
+	spin_lock_init(&gb_tty->write_lock);
+	spin_lock_init(&gb_tty->read_lock);
+	init_waitqueue_head(&gb_tty->wioctl);
+	mutex_init(&gb_tty->mutex);
+
+	gb_tty->connection = connection;
+	gb_tty->gbphy_dev = gbphy_dev;
+	gb_connection_set_data(connection, gb_tty);
+	gb_gbphy_set_data(gbphy_dev, gb_tty);
+
+	retval = gb_connection_enable_tx(connection);
+	if (retval)
+		goto exit_put_port;
+
+	retval = send_control(gb_tty, gb_tty->ctrlout);
+	if (retval)
+		goto exit_connection_disable;
+
+	/* initialize the uart to be 9600n81 */
+	gb_tty->line_coding.rate = cpu_to_le32(9600);
+	gb_tty->line_coding.format = GB_SERIAL_1_STOP_BITS;
+	gb_tty->line_coding.parity = GB_SERIAL_NO_PARITY;
+	gb_tty->line_coding.data_bits = 8;
+	retval = send_line_coding(gb_tty);
+	if (retval)
+		goto exit_connection_disable;
+
+	retval = gb_connection_enable(connection);
+	if (retval)
+		goto exit_connection_disable;
+
+	tty_dev = tty_port_register_device(&gb_tty->port, gb_tty_driver, minor,
+					   &gbphy_dev->dev);
+	if (IS_ERR(tty_dev)) {
+		retval = PTR_ERR(tty_dev);
+		goto exit_connection_disable;
+	}
+
+	gbphy_runtime_put_autosuspend(gbphy_dev);
+	return 0;
+
+exit_connection_disable:
+	gb_connection_disable(connection);
+exit_put_port:
+	tty_port_put(&gb_tty->port);
+exit_connection_destroy:
+	gb_connection_destroy(connection);
+
+	return retval;
+}
+
+static void gb_uart_remove(struct gbphy_device *gbphy_dev)
+{
+	struct gb_tty *gb_tty = gb_gbphy_get_data(gbphy_dev);
+	struct gb_connection *connection = gb_tty->connection;
+	int ret;
+
+	ret = gbphy_runtime_get_sync(gbphy_dev);
+	if (ret)
+		gbphy_runtime_get_noresume(gbphy_dev);
+
+	mutex_lock(&gb_tty->mutex);
+	gb_tty->disconnected = true;
+
+	wake_up_all(&gb_tty->wioctl);
+	mutex_unlock(&gb_tty->mutex);
+
+	tty_port_tty_vhangup(&gb_tty->port);
+
+	gb_connection_disable_rx(connection);
+	tty_unregister_device(gb_tty_driver, gb_tty->minor);
+
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+
+	tty_port_put(&gb_tty->port);
+}
+
+static int gb_tty_init(void)
+{
+	int retval = 0;
+
+	gb_tty_driver = tty_alloc_driver(GB_NUM_MINORS, TTY_DRIVER_REAL_RAW |
+					 TTY_DRIVER_DYNAMIC_DEV);
+	if (IS_ERR(gb_tty_driver)) {
+		pr_err("Can not allocate tty driver\n");
+		retval = -ENOMEM;
+		goto fail_unregister_dev;
+	}
+
+	gb_tty_driver->driver_name = "gb";
+	gb_tty_driver->name = GB_NAME;
+	gb_tty_driver->major = 0;
+	gb_tty_driver->minor_start = 0;
+	gb_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
+	gb_tty_driver->subtype = SERIAL_TYPE_NORMAL;
+	gb_tty_driver->init_termios = tty_std_termios;
+	gb_tty_driver->init_termios.c_cflag = B9600 | CS8 |
+		CREAD | HUPCL | CLOCAL;
+	tty_set_operations(gb_tty_driver, &gb_ops);
+
+	retval = tty_register_driver(gb_tty_driver);
+	if (retval) {
+		pr_err("Can not register tty driver: %d\n", retval);
+		goto fail_put_gb_tty;
+	}
+
+	return 0;
+
+fail_put_gb_tty:
+	tty_driver_kref_put(gb_tty_driver);
+fail_unregister_dev:
+	return retval;
+}
+
+static void gb_tty_exit(void)
+{
+	tty_unregister_driver(gb_tty_driver);
+	tty_driver_kref_put(gb_tty_driver);
+	idr_destroy(&tty_minors);
+}
+
+static const struct gbphy_device_id gb_uart_id_table[] = {
+	{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_UART) },
+	{ },
+};
+MODULE_DEVICE_TABLE(gbphy, gb_uart_id_table);
+
+static struct gbphy_driver uart_driver = {
+	.name		= "uart",
+	.probe		= gb_uart_probe,
+	.remove		= gb_uart_remove,
+	.id_table	= gb_uart_id_table,
+};
+
+static int gb_uart_driver_init(void)
+{
+	int ret;
+
+	ret = gb_tty_init();
+	if (ret)
+		return ret;
+
+	ret = gb_gbphy_register(&uart_driver);
+	if (ret) {
+		gb_tty_exit();
+		return ret;
+	}
+
+	return 0;
+}
+module_init(gb_uart_driver_init);
+
+static void gb_uart_driver_exit(void)
+{
+	gb_gbphy_deregister(&uart_driver);
+	gb_tty_exit();
+}
+
+module_exit(gb_uart_driver_exit);
+MODULE_DESCRIPTION("UART driver for the Greybus 'generic' UART module");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/usb.c b/drivers/staging/greybus/usb.c
new file mode 100644
index 000000000000..475f24f20cd4
--- /dev/null
+++ b/drivers/staging/greybus/usb.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USB host driver for the Greybus "generic" USB module.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/greybus.h>
+
+#include "gbphy.h"
+
+/* Greybus USB request types */
+#define GB_USB_TYPE_HCD_START		0x02
+#define GB_USB_TYPE_HCD_STOP		0x03
+#define GB_USB_TYPE_HUB_CONTROL		0x04
+
+struct gb_usb_hub_control_request {
+	__le16 typeReq;
+	__le16 wValue;
+	__le16 wIndex;
+	__le16 wLength;
+};
+
+struct gb_usb_hub_control_response {
+	DECLARE_FLEX_ARRAY(u8, buf);
+};
+
+struct gb_usb_device {
+	struct gb_connection *connection;
+	struct gbphy_device *gbphy_dev;
+};
+
+static inline struct gb_usb_device *to_gb_usb_device(struct usb_hcd *hcd)
+{
+	return (struct gb_usb_device *)hcd->hcd_priv;
+}
+
+static inline struct usb_hcd *gb_usb_device_to_hcd(struct gb_usb_device *dev)
+{
+	return container_of((void *)dev, struct usb_hcd, hcd_priv);
+}
+
+static void hcd_stop(struct usb_hcd *hcd)
+{
+	struct gb_usb_device *dev = to_gb_usb_device(hcd);
+	int ret;
+
+	ret = gb_operation_sync(dev->connection, GB_USB_TYPE_HCD_STOP,
+				NULL, 0, NULL, 0);
+	if (ret)
+		dev_err(&dev->gbphy_dev->dev, "HCD stop failed '%d'\n", ret);
+}
+
+static int hcd_start(struct usb_hcd *hcd)
+{
+	struct usb_bus *bus = hcd_to_bus(hcd);
+	struct gb_usb_device *dev = to_gb_usb_device(hcd);
+	int ret;
+
+	ret = gb_operation_sync(dev->connection, GB_USB_TYPE_HCD_START,
+				NULL, 0, NULL, 0);
+	if (ret) {
+		dev_err(&dev->gbphy_dev->dev, "HCD start failed '%d'\n", ret);
+		return ret;
+	}
+
+	hcd->state = HC_STATE_RUNNING;
+	if (bus->root_hub)
+		usb_hcd_resume_root_hub(hcd);
+	return 0;
+}
+
+static int urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
+{
+	return -ENXIO;
+}
+
+static int urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
+{
+	return -ENXIO;
+}
+
+static int get_frame_number(struct usb_hcd *hcd)
+{
+	return 0;
+}
+
+static int hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+	return 0;
+}
+
+static int hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex,
+		       char *buf, u16 wLength)
+{
+	struct gb_usb_device *dev = to_gb_usb_device(hcd);
+	struct gb_operation *operation;
+	struct gb_usb_hub_control_request *request;
+	struct gb_usb_hub_control_response *response;
+	size_t response_size;
+	int ret;
+
+	/* FIXME: handle unspecified lengths */
+	response_size = sizeof(*response) + wLength;
+
+	operation = gb_operation_create(dev->connection,
+					GB_USB_TYPE_HUB_CONTROL,
+					sizeof(*request),
+					response_size,
+					GFP_KERNEL);
+	if (!operation)
+		return -ENOMEM;
+
+	request = operation->request->payload;
+	request->typeReq = cpu_to_le16(typeReq);
+	request->wValue = cpu_to_le16(wValue);
+	request->wIndex = cpu_to_le16(wIndex);
+	request->wLength = cpu_to_le16(wLength);
+
+	ret = gb_operation_request_send_sync(operation);
+	if (ret)
+		goto out;
+
+	if (wLength) {
+		/* Greybus core has verified response size */
+		response = operation->response->payload;
+		memcpy(buf, response->buf, wLength);
+	}
+out:
+	gb_operation_put(operation);
+
+	return ret;
+}
+
+static const struct hc_driver usb_gb_hc_driver = {
+	.description = "greybus-hcd",
+	.product_desc = "Greybus USB Host Controller",
+	.hcd_priv_size = sizeof(struct gb_usb_device),
+
+	.flags = HCD_USB2,
+
+	.start = hcd_start,
+	.stop = hcd_stop,
+
+	.urb_enqueue = urb_enqueue,
+	.urb_dequeue = urb_dequeue,
+
+	.get_frame_number = get_frame_number,
+	.hub_status_data = hub_status_data,
+	.hub_control = hub_control,
+};
+
+static int gb_usb_probe(struct gbphy_device *gbphy_dev,
+			const struct gbphy_device_id *id)
+{
+	struct gb_connection *connection;
+	struct device *dev = &gbphy_dev->dev;
+	struct gb_usb_device *gb_usb_dev;
+	struct usb_hcd *hcd;
+	int retval;
+
+	hcd = usb_create_hcd(&usb_gb_hc_driver, dev, dev_name(dev));
+	if (!hcd)
+		return -ENOMEM;
+
+	connection = gb_connection_create(gbphy_dev->bundle,
+					  le16_to_cpu(gbphy_dev->cport_desc->id),
+					  NULL);
+	if (IS_ERR(connection)) {
+		retval = PTR_ERR(connection);
+		goto exit_usb_put;
+	}
+
+	gb_usb_dev = to_gb_usb_device(hcd);
+	gb_usb_dev->connection = connection;
+	gb_connection_set_data(connection, gb_usb_dev);
+	gb_usb_dev->gbphy_dev = gbphy_dev;
+	gb_gbphy_set_data(gbphy_dev, gb_usb_dev);
+
+	hcd->has_tt = 1;
+
+	retval = gb_connection_enable(connection);
+	if (retval)
+		goto exit_connection_destroy;
+
+	/*
+	 * FIXME: The USB bridged-PHY protocol driver depends on changes to
+	 *        USB core which are not yet upstream.
+	 *
+	 *        Disable for now.
+	 */
+	if (1) {
+		dev_warn(dev, "USB protocol disabled\n");
+		retval = -EPROTONOSUPPORT;
+		goto exit_connection_disable;
+	}
+
+	retval = usb_add_hcd(hcd, 0, 0);
+	if (retval)
+		goto exit_connection_disable;
+
+	return 0;
+
+exit_connection_disable:
+	gb_connection_disable(connection);
+exit_connection_destroy:
+	gb_connection_destroy(connection);
+exit_usb_put:
+	usb_put_hcd(hcd);
+
+	return retval;
+}
+
+static void gb_usb_remove(struct gbphy_device *gbphy_dev)
+{
+	struct gb_usb_device *gb_usb_dev = gb_gbphy_get_data(gbphy_dev);
+	struct gb_connection *connection = gb_usb_dev->connection;
+	struct usb_hcd *hcd = gb_usb_device_to_hcd(gb_usb_dev);
+
+	usb_remove_hcd(hcd);
+	gb_connection_disable(connection);
+	gb_connection_destroy(connection);
+	usb_put_hcd(hcd);
+}
+
+static const struct gbphy_device_id gb_usb_id_table[] = {
+	{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_USB) },
+	{ },
+};
+MODULE_DEVICE_TABLE(gbphy, gb_usb_id_table);
+
+static struct gbphy_driver usb_driver = {
+	.name		= "usb",
+	.probe		= gb_usb_probe,
+	.remove		= gb_usb_remove,
+	.id_table	= gb_usb_id_table,
+};
+
+module_gbphy_driver(usb_driver);
+MODULE_DESCRIPTION("USB host driver for the Greybus 'generic' USB module");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/greybus/vibrator.c b/drivers/staging/greybus/vibrator.c
new file mode 100644
index 000000000000..ee112aa13ff1
--- /dev/null
+++ b/drivers/staging/greybus/vibrator.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Greybus Vibrator protocol driver.
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+#include <linux/idr.h>
+#include <linux/pm_runtime.h>
+#include <linux/greybus.h>
+
+struct gb_vibrator_device {
+	struct gb_connection	*connection;
+	struct device		*dev;
+	int			minor;		/* vibrator minor number */
+	struct delayed_work     delayed_work;
+};
+
+/* Greybus Vibrator operation types */
+#define	GB_VIBRATOR_TYPE_ON			0x02
+#define	GB_VIBRATOR_TYPE_OFF			0x03
+
+static int turn_off(struct gb_vibrator_device *vib)
+{
+	struct gb_bundle *bundle = vib->connection->bundle;
+	int ret;
+
+	ret = gb_operation_sync(vib->connection, GB_VIBRATOR_TYPE_OFF,
+				NULL, 0, NULL, 0);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return ret;
+}
+
+static int turn_on(struct gb_vibrator_device *vib, u16 timeout_ms)
+{
+	struct gb_bundle *bundle = vib->connection->bundle;
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		return ret;
+
+	/* Vibrator was switched ON earlier */
+	if (cancel_delayed_work_sync(&vib->delayed_work))
+		turn_off(vib);
+
+	ret = gb_operation_sync(vib->connection, GB_VIBRATOR_TYPE_ON,
+				NULL, 0, NULL, 0);
+	if (ret) {
+		gb_pm_runtime_put_autosuspend(bundle);
+		return ret;
+	}
+
+	schedule_delayed_work(&vib->delayed_work, msecs_to_jiffies(timeout_ms));
+
+	return 0;
+}
+
+static void gb_vibrator_worker(struct work_struct *work)
+{
+	struct delayed_work *delayed_work = to_delayed_work(work);
+	struct gb_vibrator_device *vib =
+		container_of(delayed_work,
+			     struct gb_vibrator_device,
+			     delayed_work);
+
+	turn_off(vib);
+}
+
+static ssize_t timeout_store(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct gb_vibrator_device *vib = dev_get_drvdata(dev);
+	unsigned long val;
+	int retval;
+
+	retval = kstrtoul(buf, 10, &val);
+	if (retval < 0) {
+		dev_err(dev, "could not parse timeout value %d\n", retval);
+		return retval;
+	}
+
+	if (val)
+		retval = turn_on(vib, (u16)val);
+	else
+		retval = turn_off(vib);
+	if (retval)
+		return retval;
+
+	return count;
+}
+static DEVICE_ATTR_WO(timeout);
+
+static struct attribute *vibrator_attrs[] = {
+	&dev_attr_timeout.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(vibrator);
+
+static struct class vibrator_class = {
+	.name		= "vibrator",
+	.dev_groups	= vibrator_groups,
+};
+
+static DEFINE_IDA(minors);
+
+static int gb_vibrator_probe(struct gb_bundle *bundle,
+			     const struct greybus_bundle_id *id)
+{
+	struct greybus_descriptor_cport *cport_desc;
+	struct gb_connection *connection;
+	struct gb_vibrator_device *vib;
+	struct device *dev;
+	int retval;
+
+	if (bundle->num_cports != 1)
+		return -ENODEV;
+
+	cport_desc = &bundle->cport_desc[0];
+	if (cport_desc->protocol_id != GREYBUS_PROTOCOL_VIBRATOR)
+		return -ENODEV;
+
+	vib = kzalloc(sizeof(*vib), GFP_KERNEL);
+	if (!vib)
+		return -ENOMEM;
+
+	connection = gb_connection_create(bundle, le16_to_cpu(cport_desc->id),
+					  NULL);
+	if (IS_ERR(connection)) {
+		retval = PTR_ERR(connection);
+		goto err_free_vib;
+	}
+	gb_connection_set_data(connection, vib);
+
+	vib->connection = connection;
+
+	greybus_set_drvdata(bundle, vib);
+
+	retval = gb_connection_enable(connection);
+	if (retval)
+		goto err_connection_destroy;
+
+	/*
+	 * For now we create a device in sysfs for the vibrator, but odds are
+	 * there is a "real" device somewhere in the kernel for this, but I
+	 * can't find it at the moment...
+	 */
+	vib->minor = ida_alloc(&minors, GFP_KERNEL);
+	if (vib->minor < 0) {
+		retval = vib->minor;
+		goto err_connection_disable;
+	}
+	dev = device_create(&vibrator_class, &bundle->dev,
+			    MKDEV(0, 0), vib, "vibrator%d", vib->minor);
+	if (IS_ERR(dev)) {
+		retval = -EINVAL;
+		goto err_ida_remove;
+	}
+	vib->dev = dev;
+
+	INIT_DELAYED_WORK(&vib->delayed_work, gb_vibrator_worker);
+
+	gb_pm_runtime_put_autosuspend(bundle);
+
+	return 0;
+
+err_ida_remove:
+	ida_free(&minors, vib->minor);
+err_connection_disable:
+	gb_connection_disable(connection);
+err_connection_destroy:
+	gb_connection_destroy(connection);
+err_free_vib:
+	kfree(vib);
+
+	return retval;
+}
+
+static void gb_vibrator_disconnect(struct gb_bundle *bundle)
+{
+	struct gb_vibrator_device *vib = greybus_get_drvdata(bundle);
+	int ret;
+
+	ret = gb_pm_runtime_get_sync(bundle);
+	if (ret)
+		gb_pm_runtime_get_noresume(bundle);
+
+	if (cancel_delayed_work_sync(&vib->delayed_work))
+		turn_off(vib);
+
+	device_unregister(vib->dev);
+	ida_free(&minors, vib->minor);
+	gb_connection_disable(vib->connection);
+	gb_connection_destroy(vib->connection);
+	kfree(vib);
+}
+
+static const struct greybus_bundle_id gb_vibrator_id_table[] = {
+	{ GREYBUS_DEVICE_CLASS(GREYBUS_CLASS_VIBRATOR) },
+	{ }
+};
+MODULE_DEVICE_TABLE(greybus, gb_vibrator_id_table);
+
+static struct greybus_driver gb_vibrator_driver = {
+	.name		= "vibrator",
+	.probe		= gb_vibrator_probe,
+	.disconnect	= gb_vibrator_disconnect,
+	.id_table	= gb_vibrator_id_table,
+};
+
+static __init int gb_vibrator_init(void)
+{
+	int retval;
+
+	retval = class_register(&vibrator_class);
+	if (retval)
+		return retval;
+
+	retval = greybus_register(&gb_vibrator_driver);
+	if (retval)
+		goto err_class_unregister;
+
+	return 0;
+
+err_class_unregister:
+	class_unregister(&vibrator_class);
+
+	return retval;
+}
+module_init(gb_vibrator_init);
+
+static __exit void gb_vibrator_exit(void)
+{
+	greybus_deregister(&gb_vibrator_driver);
+	class_unregister(&vibrator_class);
+	ida_destroy(&minors);
+}
+module_exit(gb_vibrator_exit);
+
+MODULE_DESCRIPTION("Greybus Vibrator protocol driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/gs_fpgaboot/Kconfig b/drivers/staging/gs_fpgaboot/Kconfig
deleted file mode 100644
index 550645291fab..000000000000
--- a/drivers/staging/gs_fpgaboot/Kconfig
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# "xilinx FPGA firmware download, fpgaboot"
-#
-config GS_FPGABOOT
-	tristate "Xilinx FPGA firmware download module"
-	default n
-	help
-	  Xilinx FPGA firmware download module
diff --git a/drivers/staging/gs_fpgaboot/Makefile b/drivers/staging/gs_fpgaboot/Makefile
deleted file mode 100644
index d2f0211ba540..000000000000
--- a/drivers/staging/gs_fpgaboot/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-gs_fpga-y	+= gs_fpgaboot.o io.o
-obj-$(CONFIG_GS_FPGABOOT)	+= gs_fpga.o
diff --git a/drivers/staging/gs_fpgaboot/README b/drivers/staging/gs_fpgaboot/README
deleted file mode 100644
index 8d793c1769b0..000000000000
--- a/drivers/staging/gs_fpgaboot/README
+++ /dev/null
@@ -1,70 +0,0 @@
-==============================================================================
-Linux Driver Source for Xilinx FPGA firmware download
-==============================================================================
-
-
-TABLE OF CONTENTS.
-
-1.  SUMMARY
-2.  BACKGROUND
-3.  DESIGN
-4.  HOW TO USE
-5.  REFERENCE
-
-1. SUMMARY
-
-	- Download Xilinx FPGA firmware
-	- This module downloads Xilinx FPGA firmware using gpio pins.
-
-2. BACKGROUND
-
-	An FPGA (Field Programmable Gate Array) is a programmable hardware that is
-	used in various applications. Hardware design needs to programmed through
-	a dedicated device or CPU assisted way (serial or parallel).
-	This driver provides a way to download FPGA firmware.
-
-3. DESIGN
-
-	- load Xilinx FPGA bitstream format[1] firmware image file using
-	  kernel firmware framework, request_firmware()
-	- program the Xilinx FPGA using SelectMAP (parallel) mode [2]
-	- FPGA prgram is done by gpio based bit-banging, as an example
-	- platform independent file: gs_fpgaboot.c
-	- platform dependent file: io.c
-
-4. HOW TO USE
-
-	$ insmod gs_fpga.ko file="xlinx_fpga_top_bitstream.bit"
-	$ rmmod gs_fpga
-
-5. USE CASE (from a mailing list discussion with Greg)
-
-	a. As a FPGA development support tool,
-	During FPGA firmware development, you need to download a new FPGA
-	image frequently.
-	You would do that with a dedicated JTAG, which usually a limited
-	resource in the lab.
-	However, if you use my driver, you don't have to have a dedicated JTAG.
-	This is a real gain :)
-
-	b. For the FPGA that runs without config after the download, which
-	doesn't talk to any of Linux interfaces (such as PCIE).
-
-	We download FPGA firmware from user triggered or some other way, and that's it.
-	Since that FPGA runs on its own, it doesn't require a linux driver
-	after the download.
-
-	c. For the FPGA that requires config after the download, which talk to
-	any of linux interfaces (such as PCIE)
-
-	Then, this type of FPGA config can be put into device tree and have a
-	separate driver (pcie or others), then THAT driver calls my driver to
-	download FPGA firmware during the Linux boot, the take over the device
-	through the interface.
-
-6. REFERENCE
-
-	1. Xilinx APP NOTE XAPP583:
-	  http://www.xilinx.com/support/documentation/application_notes/xapp583-fpga-configuration.pdf
-	2. bitstream file info:
-	  http://home.earthlink.net/~davesullins/software/bitinfo.html
diff --git a/drivers/staging/gs_fpgaboot/TODO b/drivers/staging/gs_fpgaboot/TODO
deleted file mode 100644
index 2d9fb17d606d..000000000000
--- a/drivers/staging/gs_fpgaboot/TODO
+++ /dev/null
@@ -1,7 +0,0 @@
-TODO:
-	- get bus width input instead of hardcoded bus width
-	- get it reviewed
-
-Please send any patches for this driver to Insop Song<insop.song@gainspeed.com>
-and Greg Kroah-Hartman <gregkh@linuxfoundation.org>.
-And please CC to "Staging subsystem" mail list <devel@driverdev.osuosl.org> too.
diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
deleted file mode 100644
index a3a10f9a2a2b..000000000000
--- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/device.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/platform_device.h>
-#include <linux/of.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/firmware.h>
-
-#include "gs_fpgaboot.h"
-#include "io.h"
-
-#define DEVICE_NAME "device"
-#define CLASS_NAME  "fpgaboot"
-
-static uint8_t bits_magic[] = {
-	0x0, 0x9, 0xf, 0xf0, 0xf, 0xf0,
-	0xf, 0xf0, 0xf, 0xf0, 0x0, 0x0, 0x1};
-
-/* fake device for request_firmware */
-static struct platform_device	*firmware_pdev;
-
-static char	*file = "xlinx_fpga_firmware.bit";
-module_param(file, charp, S_IRUGO);
-MODULE_PARM_DESC(file, "Xilinx FPGA firmware file.");
-
-static void read_bitstream(char *bitdata, char *buf, int *offset, int rdsize)
-{
-	memcpy(buf, bitdata + *offset, rdsize);
-	*offset += rdsize;
-}
-
-static void readinfo_bitstream(char *bitdata, char *buf, int *offset)
-{
-	char tbuf[64];
-	int32_t len;
-
-	/* read section char */
-	read_bitstream(bitdata, tbuf, offset, 1);
-
-	/* read length */
-	read_bitstream(bitdata, tbuf, offset, 2);
-
-	len = tbuf[0] << 8 | tbuf[1];
-
-	read_bitstream(bitdata, buf, offset, len);
-	buf[len] = '\0';
-}
-
-/*
- * read bitdata length
- */
-static int readlength_bitstream(char *bitdata, int *lendata, int *offset)
-{
-	char tbuf[64];
-
-	/* read section char */
-	read_bitstream(bitdata, tbuf, offset, 1);
-
-	/* make sure it is section 'e' */
-	if (tbuf[0] != 'e') {
-		pr_err("error: length section is not 'e', but %c\n", tbuf[0]);
-		return -1;
-	}
-
-	/* read 4bytes length */
-	read_bitstream(bitdata, tbuf, offset, 4);
-
-	*lendata = tbuf[0] << 24 | tbuf[1] << 16 |
-		tbuf[2] << 8 | tbuf[3];
-
-	return 0;
-}
-
-
-/*
- * read first 13 bytes to check bitstream magic number
- */
-static int readmagic_bitstream(char *bitdata, int *offset)
-{
-	char buf[13];
-	int r;
-
-	read_bitstream(bitdata, buf, offset, 13);
-	r = memcmp(buf, bits_magic, 13);
-	if (r) {
-		pr_err("error: corrupted header");
-		return -1;
-	}
-	pr_info("bitstream file magic number Ok\n");
-
-	*offset = 13;	/* magic length */
-
-	return 0;
-}
-
-/*
- * NOTE: supports only bitstream format
- */
-static enum fmt_image get_imageformat(struct fpgaimage *fimage)
-{
-	return f_bit;
-}
-
-static void gs_print_header(struct fpgaimage *fimage)
-{
-	pr_info("file: %s\n", fimage->filename);
-	pr_info("part: %s\n", fimage->part);
-	pr_info("date: %s\n", fimage->date);
-	pr_info("time: %s\n", fimage->time);
-	pr_info("lendata: %d\n", fimage->lendata);
-}
-
-static void gs_read_bitstream(struct fpgaimage *fimage)
-{
-	char *bitdata;
-	int offset;
-
-	offset = 0;
-	bitdata = (char *)fimage->fw_entry->data;
-
-	readmagic_bitstream(bitdata, &offset);
-	readinfo_bitstream(bitdata, fimage->filename, &offset);
-	readinfo_bitstream(bitdata, fimage->part, &offset);
-	readinfo_bitstream(bitdata, fimage->date, &offset);
-	readinfo_bitstream(bitdata, fimage->time, &offset);
-	readlength_bitstream(bitdata, &fimage->lendata, &offset);
-
-	fimage->fpgadata = bitdata + offset;
-}
-
-static int gs_read_image(struct fpgaimage *fimage)
-{
-	int img_fmt;
-
-	img_fmt = get_imageformat(fimage);
-
-	switch (img_fmt) {
-	case f_bit:
-		pr_info("image is bitstream format\n");
-		gs_read_bitstream(fimage);
-		break;
-	default:
-		pr_err("unsupported fpga image format\n");
-		return -1;
-	}
-
-	gs_print_header(fimage);
-
-	return 0;
-}
-
-static int gs_load_image(struct fpgaimage *fimage, char *fw_file)
-{
-	int err;
-
-	pr_info("load fpgaimage %s\n", fw_file);
-
-	err = request_firmware(&fimage->fw_entry, fw_file, &firmware_pdev->dev);
-	if (err != 0) {
-		pr_err("firmware %s is missing, cannot continue.\n", fw_file);
-		return err;
-	}
-
-	return 0;
-}
-
-static int gs_download_image(struct fpgaimage *fimage, enum wbus bus_bytes)
-{
-	char *bitdata;
-	int size, i, cnt;
-
-	cnt = 0;
-	bitdata = (char *)fimage->fpgadata;
-	size = fimage->lendata;
-
-#ifdef DEBUG_FPGA
-	print_hex_dump_bytes("bitfile sample: ", DUMP_PREFIX_OFFSET,
-			     bitdata, 0x100);
-#endif /* DEBUG_FPGA */
-	if (!xl_supported_prog_bus_width(bus_bytes)) {
-		pr_err("unsupported program bus width %d\n",
-				bus_bytes);
-		return -1;
-	}
-
-	/* Bring csi_b, rdwr_b Low and program_b High */
-	xl_program_b(1);
-	xl_rdwr_b(0);
-	xl_csi_b(0);
-
-	/* Configuration reset */
-	xl_program_b(0);
-	msleep(20);
-	xl_program_b(1);
-
-	/* Wait for Device Initialization */
-	while (xl_get_init_b() == 0)
-		;
-
-	pr_info("device init done\n");
-
-	for (i = 0; i < size; i += bus_bytes)
-		xl_shift_bytes_out(bus_bytes, bitdata+i);
-
-	pr_info("program done\n");
-
-	/* Check INIT_B */
-	if (xl_get_init_b() == 0) {
-		pr_err("init_b 0\n");
-		return -1;
-	}
-
-	while (xl_get_done_b() == 0) {
-		if (cnt++ > MAX_WAIT_DONE) {
-			pr_err("init_B %d\n", xl_get_init_b());
-			break;
-		}
-	}
-
-	if (cnt > MAX_WAIT_DONE) {
-		pr_err("fpga download fail\n");
-		return -1;
-	}
-
-	pr_info("download fpgaimage\n");
-
-	/* Compensate for Special Startup Conditions */
-	xl_shift_cclk(8);
-
-	return 0;
-}
-
-static int gs_release_image(struct fpgaimage *fimage)
-{
-	release_firmware(fimage->fw_entry);
-	pr_info("release fpgaimage\n");
-
-	return 0;
-}
-
-/*
- * NOTE: supports systemmap parallel programming
- */
-static int gs_set_download_method(struct fpgaimage *fimage)
-{
-	pr_info("set program method\n");
-
-	fimage->dmethod = m_systemmap;
-
-	pr_info("systemmap program method\n");
-
-	return 0;
-}
-
-static int init_driver(void)
-{
-	firmware_pdev = platform_device_register_simple("fpgaboot", -1,
-							 NULL, 0);
-	return PTR_ERR_OR_ZERO(firmware_pdev);
-}
-
-static void finish_driver(void)
-{
-	platform_device_unregister(firmware_pdev);
-}
-
-static int gs_fpgaboot(void)
-{
-	int err;
-	struct fpgaimage	*fimage;
-
-	fimage = kmalloc(sizeof(struct fpgaimage), GFP_KERNEL);
-	if (!fimage)
-		return -ENOMEM;
-
-	err = gs_load_image(fimage, file);
-	if (err) {
-		pr_err("gs_load_image error\n");
-		goto err_out1;
-	}
-
-	err = gs_read_image(fimage);
-	if (err) {
-		pr_err("gs_read_image error\n");
-		goto err_out2;
-	}
-
-	err = gs_set_download_method(fimage);
-	if (err) {
-		pr_err("gs_set_download_method error\n");
-		goto err_out2;
-	}
-
-	err = gs_download_image(fimage, bus_2byte);
-	if (err) {
-		pr_err("gs_download_image error\n");
-		goto err_out2;
-	}
-
-	err = gs_release_image(fimage);
-	if (err) {
-		pr_err("gs_release_image error\n");
-		goto err_out1;
-	}
-
-	kfree(fimage);
-	return 0;
-
-err_out2:
-	err = gs_release_image(fimage);
-	if (err)
-		pr_err("gs_release_image error\n");
-err_out1:
-	kfree(fimage);
-
-	return -1;
-
-}
-
-static int __init gs_fpgaboot_init(void)
-{
-	int err;
-
-	pr_info("FPGA DOWNLOAD --->\n");
-
-	pr_info("FPGA image file name: %s\n", file);
-
-	err = init_driver();
-	if (err) {
-		pr_err("FPGA DRIVER INIT FAIL!!\n");
-		return err;
-	}
-
-	err = xl_init_io();
-	if (err) {
-		pr_err("GPIO INIT FAIL!!\n");
-		goto errout;
-	}
-
-	err = gs_fpgaboot();
-	if (err) {
-		pr_err("FPGA DOWNLOAD FAIL!!\n");
-		goto errout;
-	}
-
-	pr_info("FPGA DOWNLOAD DONE <---\n");
-
-	return 0;
-
-errout:
-	finish_driver();
-
-	return err;
-}
-
-static void __exit gs_fpgaboot_exit(void)
-{
-	finish_driver();
-	pr_info("FPGA image download module removed\n");
-}
-
-module_init(gs_fpgaboot_init);
-module_exit(gs_fpgaboot_exit);
-
-MODULE_AUTHOR("Insop Song");
-MODULE_DESCRIPTION("Xlinix FPGA firmware download");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.h b/drivers/staging/gs_fpgaboot/gs_fpgaboot.h
deleted file mode 100644
index f41f4cc798cc..000000000000
--- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/firmware.h>
-
-#define	MAX_STR	256
-
-enum fmt_image {
-	f_bit,	/* only bitstream is supported */
-	f_rbt,
-	f_bin,
-	f_mcs,
-	f_hex,
-};
-
-enum mdownload {
-	m_systemmap,	/* only system map is supported */
-	m_serial,
-	m_jtag,
-};
-
-/*
- * xilinx fpgaimage information
- * NOTE: use MAX_STR instead of dynamic alloc for simplicity
- */
-struct fpgaimage {
-	enum fmt_image	fmt_img;
-	enum mdownload	dmethod;
-
-	const struct	firmware	*fw_entry;
-
-	/*
-	 * the followings can be read from bitstream,
-	 * but other image format should have as well
-	 */
-	char	filename[MAX_STR];
-	char	part[MAX_STR];
-	char	date[MAX_STR];
-	char	time[MAX_STR];
-	int32_t	lendata;
-	char	*fpgadata;
-};
diff --git a/drivers/staging/gs_fpgaboot/io.c b/drivers/staging/gs_fpgaboot/io.c
deleted file mode 100644
index 819db53da64d..000000000000
--- a/drivers/staging/gs_fpgaboot/io.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/device.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/platform_device.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/firmware.h>
-#include <linux/io.h>
-
-#include "io.h"
-
-static inline void byte0_out(unsigned char data);
-static inline void byte1_out(unsigned char data);
-static inline void xl_cclk_b(int32_t i);
-
-
-/* Assert and Deassert CCLK */
-void xl_shift_cclk(int count)
-{
-	int i;
-
-	for (i = 0; i < count; i++) {
-		xl_cclk_b(1);
-		xl_cclk_b(0);
-	}
-}
-
-int xl_supported_prog_bus_width(enum wbus bus_bytes)
-{
-	switch (bus_bytes) {
-	case bus_1byte:
-		break;
-	case bus_2byte:
-		break;
-	default:
-		pr_err("unsupported program bus width %d\n",
-				bus_bytes);
-		return 0;
-	}
-
-	return 1;
-}
-
-/* Serialize byte and clock each bit on target's DIN and CCLK pins */
-void xl_shift_bytes_out(enum wbus bus_byte, unsigned char *pdata)
-{
-	/*
-	 * supports 1 and 2 bytes programming mode
-	 */
-	if (likely(bus_byte == bus_2byte))
-		byte0_out(pdata[0]);
-
-	byte1_out(pdata[1]);
-	xl_shift_cclk(1);
-}
-
-/*
- * generic bit swap for xilinx SYSTEMMAP FPGA programming
- */
-void xl_program_b(int32_t i)
-{
-}
-
-void xl_rdwr_b(int32_t i)
-{
-}
-
-void xl_csi_b(int32_t i)
-{
-}
-
-int xl_get_init_b(void)
-{
-	return -1;
-}
-
-int xl_get_done_b(void)
-{
-	return -1;
-}
-
-static inline void byte0_out(unsigned char data)
-{
-}
-
-static inline void byte1_out(unsigned char data)
-{
-}
-
-static inline void xl_cclk_b(int32_t i)
-{
-}
-
-/*
- * configurable per device type for different I/O config
- */
-int xl_init_io(void)
-{
-	return -1;
-}
diff --git a/drivers/staging/gs_fpgaboot/io.h b/drivers/staging/gs_fpgaboot/io.h
deleted file mode 100644
index 7b46ac24b74e..000000000000
--- a/drivers/staging/gs_fpgaboot/io.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#define GPDIR	0
-#define GPCFG	4	/* open drain or not */
-#define GPDAT	8
-
-/*
- * gpio port and pin definitions
- * NOTE: port number starts from 0
- */
-#define	XL_INITN_PORT	1
-#define	XL_INITN_PIN	14
-#define	XL_RDWRN_PORT	1
-#define	XL_RDWRN_PIN	13
-#define	XL_CCLK_PORT	1
-#define	XL_CCLK_PIN	10
-#define	XL_PROGN_PORT	1
-#define	XL_PROGN_PIN	25
-#define	XL_CSIN_PORT	1
-#define	XL_CSIN_PIN	26
-#define	XL_DONE_PORT	1
-#define	XL_DONE_PIN	27
-
-/*
- * gpio mapping
- *
-	XL_config_D0 – gpio1_31
-	Xl_config_d1 – gpio1_30
-	Xl_config_d2 – gpio1_29
-	Xl_config_d3 – gpio1_28
-	Xl_config_d4 – gpio1_27
-	Xl_config_d5 – gpio1_26
-	Xl_config_d6 – gpio1_25
-	Xl_config_d7 – gpio1_24
-	Xl_config_d8 – gpio1_23
-	Xl_config_d9 – gpio1_22
-	Xl_config_d10 – gpio1_21
-	Xl_config_d11 – gpio1_20
-	Xl_config_d12 – gpio1_19
-	Xl_config_d13 – gpio1_18
-	Xl_config_d14 – gpio1_16
-	Xl_config_d15 – gpio1_14
-*
-*/
-
-/*
- * program bus width in bytes
- */
-enum wbus {
-	bus_1byte	= 1,
-	bus_2byte	= 2,
-};
-
-
-#define MAX_WAIT_DONE	10000
-
-
-struct gpiobus {
-	int	ngpio;
-	void __iomem *r[4];
-};
-
-int xl_supported_prog_bus_width(enum wbus bus_bytes);
-
-void xl_program_b(int32_t i);
-void xl_rdwr_b(int32_t i);
-void xl_csi_b(int32_t i);
-
-int xl_get_init_b(void);
-int xl_get_done_b(void);
-
-void xl_shift_cclk(int count);
-void xl_shift_bytes_out(enum wbus bus_byte, unsigned char *pdata);
-
-int xl_init_io(void);
diff --git a/drivers/staging/iio/Documentation/dac/max517 b/drivers/staging/iio/Documentation/dac/max517
deleted file mode 100644
index e60ec2f91a7a..000000000000
--- a/drivers/staging/iio/Documentation/dac/max517
+++ /dev/null
@@ -1,41 +0,0 @@
-Kernel driver max517
-====================
-
-Supported chips:
-  * Maxim MAX517, MAX518, MAX519
-    Prefix: 'max517'
-    Datasheet: Publicly available at the Maxim website
-               http://www.maxim-ic.com/
-
-Author:
-        Roland Stigge <stigge@antcom.de>
-
-Description
------------
-
-The Maxim MAX517/518/519 is an 8-bit DAC on the I2C bus. The following table
-shows the different feature sets of the variants MAX517, MAX518 and MAX519:
-
-Feature                              MAX517 MAX518 MAX519
---------------------------------------------------------------------------
-One output channel                   X
-Two output channels                         X      X
-Simultaneous output updates                 X      X
-Supply voltage as reference                 X
-Separate reference input             X
-Reference input for each DAC                       X
-
-Via the iio sysfs interface, there are three attributes available: out1_raw,
-out2_raw and out12_raw. With out1_raw and out2_raw, the current output values
-(0..255) of the DACs can be written to the device. out12_raw can be used to set
-both output channel values simultaneously.
-
-With MAX517, only out1_raw is available.
-
-Via out1_scale (and where appropriate, out2_scale), the current scaling factor
-in mV can be read.
-
-When the operating system goes to a power down state, the Power Down function
-of the chip is activated, reducing the supply current to 4uA.
-
-On power-up, the device is in 0V-output state.
diff --git a/drivers/staging/iio/Documentation/device.txt b/drivers/staging/iio/Documentation/device.txt
deleted file mode 100644
index 54ef0deed28f..000000000000
--- a/drivers/staging/iio/Documentation/device.txt
+++ /dev/null
@@ -1,79 +0,0 @@
-IIO Device drivers
-
-This is not intended to provide a comprehensive guide to writing an
-IIO device driver.  For further information see the drivers within the
-subsystem.
-
-The crucial structure for device drivers in iio is iio_dev.
-
-First allocate one using:
-
-struct iio_dev *indio_dev = iio_device_alloc(sizeof(struct chip_state));
-where chip_state is a structure of local state data for this instance of
-the chip.
-
-That data can be accessed using iio_priv(struct iio_dev *).
-
-Then fill in the following:
-
-- indio_dev->dev.parent
-	Struct device associated with the underlying hardware.
-- indio_dev->name
-	Name of the device being driven - made available as the name
-	attribute in sysfs.
-
-- indio_dev->info
-	pointer to a structure with elements that tend to be fixed for
-	large sets of different parts supported by a given driver.
-	This contains:
-	* info->driver_module:
-		Set to THIS_MODULE. Used to ensure correct ownership
-		of various resources allocate by the core.
-	* info->event_attrs:
-		Attributes used to enable / disable hardware events.
-	* info->attrs:
-		General device attributes. Typically used for the weird
-		and the wonderful bits not covered by the channel specification.
-	* info->read_raw:
-		Raw data reading function. Used for both raw channel access
-		and for associate parameters such as offsets and scales.
-	* info->write_raw:
-		Raw value writing function. Used for writable device values such
-		as DAC values and calibbias.
-	* info->read_event_config:
-		Typically only set if there are some interrupt lines.  This
-		is used to read if an on sensor event detector is enabled.
-	* info->write_event_config:
-		Enable / disable an on sensor event detector.
-	* info->read_event_value:
-		Read value associated with on sensor event detectors. Note that
-		the meaning of the returned value is dependent on the event
-		type.
-	* info->write_event_value:
-		Write the value associated with on sensor event detectors. E.g.
-		a threshold above which an interrupt occurs.  Note that the
-		meaning of the value to be set is event type dependent.
-
-- indio_dev->modes:
-	Specify whether direct access and / or ring buffer access is supported.
-- indio_dev->buffer:
-	An optional associated buffer.
-- indio_dev->pollfunc:
-	Poll function related elements. This controls what occurs when a trigger
-	to which this device is attached sends an event.
-- indio_dev->channels:
-	Specification of device channels. Most attributes etc. are built
-	from this spec.
-- indio_dev->num_channels:
-	How many channels are there?
-
-Once these are set up, a call to iio_device_register(indio_dev)
-will register the device with the iio core.
-
-Worth noting here is that, if a ring buffer is to be used, it can be
-allocated prior to registering the device with the iio-core, but must
-be registered afterwards (otherwise the whole parentage of devices
-gets confused)
-
-On remove, iio_device_unregister(indio_dev) will remove the device from
-the core, and iio_device_free(indio_dev) will clean up.
diff --git a/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2583 b/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2583
deleted file mode 100644
index 470f7ad9c073..000000000000
--- a/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2583
+++ /dev/null
@@ -1,6 +0,0 @@
-What:		/sys/bus/iio/devices/device[n]/in_illuminance0_calibrate
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property causes an internal calibration of the als gain trim
-		value which is later used in calculating illuminance in lux.
diff --git a/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2x7x b/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2x7x
deleted file mode 100644
index b2798b258bf7..000000000000
--- a/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2x7x
+++ /dev/null
@@ -1,13 +0,0 @@
-What:		/sys/bus/iio/devices/device[n]/in_illuminance0_calibrate
-KernelVersion:	3.3-rc1
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Causes an internal calibration of the als gain trim
-		value which is later used in calculating illuminance in lux.
-
-What:		/sys/bus/iio/devices/device[n]/in_proximity0_calibrate
-KernelVersion:	3.3-rc1
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Causes a recalculation and adjustment to the
-		proximity_thresh_rising_value.
diff --git a/drivers/staging/iio/Documentation/overview.txt b/drivers/staging/iio/Documentation/overview.txt
deleted file mode 100644
index 43f92b06bc3e..000000000000
--- a/drivers/staging/iio/Documentation/overview.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Overview of IIO
-
-The Industrial I/O subsystem is intended to provide support for devices
-that in some sense are analog to digital converters (ADCs). As many
-actual devices combine some ADCs with digital to analog converters
-(DACs) that functionality is also supported.
-
-The aim is to fill the gap between the somewhat similar hwmon and
-input subsystems.  Hwmon is very much directed at low sample rate
-sensors used in applications such as fan speed control and temperature
-measurement.  Input is, as its name suggests focused on input
-devices. In some cases there is considerable overlap between these and
-IIO.
-
-A typical device falling into this category would be connected via SPI
-or I2C.
-
-Functionality of IIO
-
-* Basic device registration and handling. This is very similar to
-hwmon with simple polled access to device channels via sysfs.
-
-* Event chrdevs.  These are similar to input in that they provide a
-route to user space for hardware triggered events. Such events include
-threshold detectors, free-fall detectors and more complex action
-detection.  The events themselves are currently very simple with
-merely an event code and a timestamp.  Any data associated with the
-event must be accessed via polling.
-
-Note: A given device may have one or more event channel.  These events are
-turned on or off (if possible) via sysfs interfaces.
-
-* Hardware buffer support.  Some recent sensors have included
-fifo / ring buffers on the sensor chip.  These greatly reduce the load
-on the host CPU by buffering relatively large numbers of data samples
-based on an internal sampling clock. Examples include VTI SCA3000
-series and Analog Device ADXL345 accelerometers.  Each buffer supports
-polling to establish when data is available.
-
-* Trigger and software buffer support. In many data analysis
-applications it it useful to be able to capture data based on some
-external signal (trigger).  These triggers might be a data ready
-signal, a gpio line connected to some external system or an on
-processor periodic interrupt.  A single trigger may initialize data
-capture or reading from a number of sensors.  These triggers are
-used in IIO to fill software buffers acting in a very similar
-fashion to the hardware buffers described above.
-
-Other documentation:
-
-device.txt - elements of a typical device driver.
-
-trigger.txt - elements of a typical trigger driver.
-
-ring.txt - additional elements required for buffer support.
-
-sysfs-bus-iio - abi documentation file.
diff --git a/drivers/staging/iio/Documentation/ring.txt b/drivers/staging/iio/Documentation/ring.txt
deleted file mode 100644
index 18718fcaf259..000000000000
--- a/drivers/staging/iio/Documentation/ring.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-Buffer support within IIO
-
-This document is intended as a general overview of the functionality
-a buffer may supply and how it is specified within IIO.  For more
-specific information on a given buffer implementation, see the
-comments in the source code.  Note that some drivers allow buffer
-implementation to be selected at compile time via Kconfig options.
-
-A given buffer implementation typically embeds a struct
-iio_ring_buffer and it is a pointer to this that is provided to the
-IIO core. Access to the embedding structure is typically done via
-container_of functions.
-
-struct iio_ring_buffer contains a struct iio_ring_setup_ops *setup_ops
-which in turn contains the 4 function pointers
-(preenable, postenable, predisable and postdisable).
-These are used to perform device specific steps on either side
-of the core changing its current mode to indicate that the buffer
-is enabled or disabled (along with enabling triggering etc. as appropriate).
-
-Also in struct iio_ring_buffer is a struct iio_ring_access_funcs.
-The function pointers within here are used to allow the core to handle
-as much buffer functionality as possible. Note almost all of these
-are optional.
-
-store_to
-  If possible, push data to the buffer.
-
-read_last
-  If possible, get the most recent scan from the buffer (without removal).
-  This provides polling like functionality whilst the ring buffering is in
-  use without a separate read from the device.
-
-rip_first_n
-  The primary buffer reading function. Note that it may well not return
-  as much data as requested.
-
-request_update
-  If parameters have changed that require reinitialization or configuration of
-  the buffer this will trigger it.
-
-set_bytes_per_datum
-  Set the number of bytes for a complete scan. (All samples + timestamp)
-
-set_length
-  Set the number of complete scans that may be held by the buffer.
-
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192 b/drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192
deleted file mode 100644
index 1c35c507cc05..000000000000
--- a/drivers/staging/iio/Documentation/sysfs-bus-iio-ad7192
+++ /dev/null
@@ -1,20 +0,0 @@
-What:		/sys/.../iio:deviceX/ac_excitation_en
-KernelVersion:	3.1.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This attribute, if available, is used to enable the AC
-		excitation mode found on some converters. In ac excitation mode,
-		the polarity of the excitation voltage is reversed on
-		alternate cycles, to eliminate DC errors.
-
-What:		/sys/.../iio:deviceX/bridge_switch_en
-KernelVersion:	3.1.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This attribute, if available, is used to close or open the
-		bridge power down switch found on some converters.
-		In bridge applications, such as strain gauges and load cells,
-		the bridge itself consumes the majority of the current in the
-		system. To minimize the current consumption of the system,
-		the bridge can be disconnected (when it is not being used
-		using the bridge_switch_en attribute.
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-impedance-analyzer-ad5933 b/drivers/staging/iio/Documentation/sysfs-bus-iio-impedance-analyzer-ad5933
deleted file mode 100644
index 79c7e88c64cd..000000000000
--- a/drivers/staging/iio/Documentation/sysfs-bus-iio-impedance-analyzer-ad5933
+++ /dev/null
@@ -1,30 +0,0 @@
-What:		/sys/bus/iio/devices/iio:deviceX/outY_freq_start
-KernelVersion:	3.1.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Frequency sweep start frequency in Hz.
-
-What:		/sys/bus/iio/devices/iio:deviceX/outY_freq_increment
-KernelVersion:	3.1.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Frequency increment in Hz (step size) between consecutive
-		frequency points along the sweep.
-
-What:		/sys/bus/iio/devices/iio:deviceX/outY_freq_points
-KernelVersion:	3.1.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Number of frequency points (steps) in the frequency sweep.
-		This value, in conjunction with the outY_freq_start and the
-		outY_freq_increment, determines the frequency sweep range
-		for the sweep operation.
-
-What:		/sys/bus/iio/devices/iio:deviceX/outY_settling_cycles
-KernelVersion:	3.1.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Number of output excitation cycles (settling time cycles)
-		that are allowed to pass through the unknown impedance,
-		after each frequency increment, and before the ADC is triggered
-		to perform a conversion sequence of the response signal.
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-light b/drivers/staging/iio/Documentation/sysfs-bus-iio-light
deleted file mode 100644
index 17e5c9c515d4..000000000000
--- a/drivers/staging/iio/Documentation/sysfs-bus-iio-light
+++ /dev/null
@@ -1,107 +0,0 @@
-
-What:		/sys/bus/iio/devices/device[n]/range
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Hardware dependent ADC Full Scale Range used for some ambient
-		light sensors in calculating lux.
-
-What:		/sys/bus/iio/devices/device[n]/range_available
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Hardware dependent supported vales for ADC Full Scale Range.
-
-What:		/sys/bus/iio/devices/device[n]/adc_resolution
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Hardware dependent ADC resolution of the ambient light sensor
-		used in calculating the lux.
-
-What:		/sys/bus/iio/devices/device[n]/adc_resolution_available
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Hardware dependent list of possible values supported for the
-		adc_resolution of the given sensor.
-
-What:		/sys/bus/iio/devices/device[n]/in_illuminance0[_input|_raw]
-KernelVersion:	2.6.35
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This should return the calculated lux from the light sensor. If
-		it comes back in SI units, it should also include _input else it
-		should include _raw to signify it is not in SI units.
-
-What:		/sys/.../device[n]/proximity_on_chip_ambient_infrared_suppression
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		Hardware dependent mode for an ALS device to calculate the value
-		in proximity mode. When this is enabled, then the device should
-		use a infrared sensor reading to remove infrared noise from the
-		proximity reading. If this is not enabled, the driver can still
-		do this calculation manually by reading the infrared sensor
-		value and doing the negation in sw.
-
-What:		/sys/bus/iio/devices/device[n]/in_proximity[_input|_raw]
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property is supported by proximity sensors and should be
-		used to return the value of a reading by the sensor. If this
-		value is returned in SI units, it should also include _input
-		but if it is not, then it should include _raw.
-
-What:		/sys/bus/iio/devices/device[n]/intensity_infrared[_input|_raw]
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property is supported by sensors that have an infrared
-		sensing mode. This value should be the output from a reading
-		and if expressed in SI units, should include _input. If this
-		value is not in SI units, then it should include _raw.
-
-What:		/sys/bus/iio/devices/device[n]/in_illuminance0_target
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property gets/sets the last known external
-		lux measurement used in/for calibration.
-
-What:		/sys/bus/iio/devices/device[n]/in_illuminance0_integration_time
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property gets/sets the sensors ADC analog integration time.
-
-What:		/sys/bus/iio/devices/device[n]/in_illuminance0_lux_table
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property gets/sets the table of coefficients
-		used in calculating illuminance in lux.
-
-What:		/sys/bus/iio/devices/device[n]/in_intensity_clear[_input|_raw]
-What:		/sys/bus/iio/devices/device[n]/in_intensity_red[_input|_raw]
-What:		/sys/bus/iio/devices/device[n]/in_intensity_green[_input|_raw]
-What:		/sys/bus/iio/devices/device[n]/in_intensity_blue[_input|_raw]
-KernelVersion:	3.6.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property is supported by sensors that have a RGBC
-		sensing mode. This value should be the output from a reading
-		and if expressed in SI units, should include _input. If this
-		value is not in SI units (irradiance, uW/mm^2), then it should
-		include _raw.
-
-What:		/sys/bus/iio/devices/device[n]/in_cct0[_input|_raw]
-KernelVersion:	3.6.0
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This should return the correlated color temperature from the
-		light sensor. If it comes back in SI units, it should also
-		include _input else it should include _raw to signify it is not
-		in SI units.
-
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-light-tsl2583 b/drivers/staging/iio/Documentation/sysfs-bus-iio-light-tsl2583
deleted file mode 100644
index 660781df409f..000000000000
--- a/drivers/staging/iio/Documentation/sysfs-bus-iio-light-tsl2583
+++ /dev/null
@@ -1,20 +0,0 @@
-What:		/sys/bus/iio/devices/device[n]/lux_table
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property gets/sets the table of coefficients
-		used in calculating illuminance in lux.
-
-What:		/sys/bus/iio/devices/device[n]/illuminance0_calibrate
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property causes an internal calibration of the als gain trim
-		value which is later used in calculating illuminance in lux.
-
-What:		/sys/bus/iio/devices/device[n]/illuminance0_input_target
-KernelVersion:	2.6.37
-Contact:	linux-iio@vger.kernel.org
-Description:
-		This property is the known externally illuminance (in lux).
-		It is used in the process of calibrating the device accuracy.
diff --git a/drivers/staging/iio/Documentation/trigger.txt b/drivers/staging/iio/Documentation/trigger.txt
deleted file mode 100644
index 7c0e505e4f04..000000000000
--- a/drivers/staging/iio/Documentation/trigger.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-IIO trigger drivers.
-
-Many triggers are provided by hardware that will also be registered as
-an IIO device.  Whilst this can create device specific complexities
-such triggers are registered with the core in the same way as
-stand-alone triggers.
-
-struct iio_trig *trig = iio_trigger_alloc("<trigger format string>", ...);
-
-allocates a trigger structure.  The key elements to then fill in within
-a driver are:
-
-trig->owner
-	Typically set to THIS_MODULE. Used to ensure correct
-	ownership of core allocated resources.
-
-trig->set_trigger_state:
-	Function that enables / disables the underlying source of the trigger.
-
-There is also a
-trig->alloc_list which is useful for drivers that allocate multiple
-triggers to keep track of what they have created.
-
-When these have been set call:
-
-iio_trigger_register(trig);
-
-to register the trigger with the core, making it available to trigger
-consumers.
-
-Trigger Consumers
-
-Currently triggers are only used for the filling of software
-buffers and as such any device supporting INDIO_BUFFER_TRIGGERED has the
-consumer interface automatically created.
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index 6d5b38d69578..a60631c1f449 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Industrial I/O subsystem configuration
 #
@@ -7,42 +8,7 @@ menu "IIO staging drivers"
 source "drivers/staging/iio/accel/Kconfig"
 source "drivers/staging/iio/adc/Kconfig"
 source "drivers/staging/iio/addac/Kconfig"
-source "drivers/staging/iio/cdc/Kconfig"
 source "drivers/staging/iio/frequency/Kconfig"
-source "drivers/staging/iio/gyro/Kconfig"
 source "drivers/staging/iio/impedance-analyzer/Kconfig"
-source "drivers/staging/iio/light/Kconfig"
-source "drivers/staging/iio/magnetometer/Kconfig"
-source "drivers/staging/iio/meter/Kconfig"
-source "drivers/staging/iio/resolver/Kconfig"
-source "drivers/staging/iio/trigger/Kconfig"
-
-config IIO_DUMMY_EVGEN
-       tristate
-
-config IIO_SIMPLE_DUMMY
-       tristate "An example driver with no hardware requirements"
-       help
-	 Driver intended mainly as documentation for how to write
-	 a driver. May also be useful for testing userspace code
-	 without hardware.
-
-if IIO_SIMPLE_DUMMY
-
-config IIO_SIMPLE_DUMMY_EVENTS
-       bool "Event generation support"
-       select IIO_DUMMY_EVGEN
-       help
-         Add some dummy events to the simple dummy driver.
-
-config IIO_SIMPLE_DUMMY_BUFFER
-	bool "Buffered capture support"
-	select IIO_BUFFER
-	select IIO_TRIGGER
-	select IIO_KFIFO_BUF
-	help
-	  Add buffered data capture to the simple dummy driver.
-
-endif # IIO_SIMPLE_DUMMY
 
 endmenu
diff --git a/drivers/staging/iio/Makefile b/drivers/staging/iio/Makefile
index d87106135b27..628583535393 100644
--- a/drivers/staging/iio/Makefile
+++ b/drivers/staging/iio/Makefile
@@ -1,23 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the industrial I/O core.
 #
 
-obj-$(CONFIG_IIO_SIMPLE_DUMMY) += iio_dummy.o
-iio_dummy-y := iio_simple_dummy.o
-iio_dummy-$(CONFIG_IIO_SIMPLE_DUMMY_EVENTS) += iio_simple_dummy_events.o
-iio_dummy-$(CONFIG_IIO_SIMPLE_DUMMY_BUFFER) += iio_simple_dummy_buffer.o
-
-obj-$(CONFIG_IIO_DUMMY_EVGEN) += iio_dummy_evgen.o
-
 obj-y += accel/
 obj-y += adc/
 obj-y += addac/
-obj-y += cdc/
 obj-y += frequency/
-obj-y += gyro/
 obj-y += impedance-analyzer/
-obj-y += light/
-obj-y += magnetometer/
-obj-y += meter/
-obj-y += resolver/
-obj-y += trigger/
diff --git a/drivers/staging/iio/TODO b/drivers/staging/iio/TODO
deleted file mode 100644
index c22a0edd1528..000000000000
--- a/drivers/staging/iio/TODO
+++ /dev/null
@@ -1,84 +0,0 @@
-2009 8/18
-
-Core:
-1) Get reviews
-2) Additional testing
-3) Ensure all desirable features present by adding more devices.
-   Major changes not expected except in response to comments
-
-Max1363 core:
-1) Possibly add sysfs exports of constant useful to userspace.
-Would be nice
-2) Support hardware generated interrupts
-3) Expand device set. Lots of other maxim adc's have very
-   similar interfaces.
-
-MXS LRADC driver:
-This is a classic MFD device as it combines the following subdevices
- - touchscreen controller (input subsystem related device)
- - general purpose ADC channels
- - battery voltage monitor (power subsystem related device)
- - die temperature monitor (thermal management)
-
-At least the battery voltage and die temperature feature is required in-kernel
-by a driver of the SoC's battery charging unit to avoid any damage to the
-silicon and the battery.
-
-TSL2561
-Would be nice
-1) Open question of userspace vs kernel space balance when
-converting to useful light measurements from device ones.
-2) Add sysfs elements necessary to allow device agnostic
-unit conversion.
-
-LIS3L02DQ core
-
-LIS3L02DQ ring
-
-KXSD9
-Currently minimal driver, would be nice to add:
-1) Support for all chip generated interrupts (events),
-basically get support up to level of lis3l02dq driver.
-
-Ring buffer core
-
-SCA3000
-Would be nice
-1) Testing on devices other than sca3000-e05
-
-Trigger core support
-1) Discussion of approach. Is it general enough?
-
-Ring Buffer:
-1) Discussion of approach.
-There are probably better ways of doing this. The
-intention is to allow for more than one software ring
-buffer implementation as different users will have
-different requirements.  This one suits mid range
-frequencies (100Hz - 4kHz).
-2) Lots of testing
-
-Periodic Timer trigger
-1) Move to a more general hardware periodic timer request
-subsystem. Current approach is abusing purpose of RTC.
-Initial discussions have taken place, but no actual code
-is in place as yet. This topic will be reopened on lkml
-shortly. I don't really envision this patch being merged
-in anything like its current form.
-
-GPIO trigger
-1) Add control over the type of interrupt etc.  This will
-necessitate a header that is also visible from arch board
-files. (avoided at the moment to keep the driver set
-contained in staging).
-
-ADI Drivers:
-CC the device-drivers-devel@blackfin.uclinux.org mailing list when
-e-mailing the normal IIO list (see below).
-
-Documentation
-1) Lots of cleanup and expansion.
-2) Some device require individual docs.
-
-Contact: Jonathan Cameron <jic23@kernel.org>.
-Mailing list: linux-iio@vger.kernel.org
diff --git a/drivers/staging/iio/accel/Kconfig b/drivers/staging/iio/accel/Kconfig
index fa67da9408b6..cee51f64bc4b 100644
--- a/drivers/staging/iio/accel/Kconfig
+++ b/drivers/staging/iio/accel/Kconfig
@@ -1,20 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Accelerometer drivers
 #
 menu "Accelerometers"
 
-config ADIS16201
-	tristate "Analog Devices ADIS16201 Dual-Axis Digital Inclinometer and Accelerometer"
-	depends on SPI
-	select IIO_ADIS_LIB
-	select IIO_ADIS_LIB_BUFFER if IIO_BUFFER
-	help
-	  Say Y here to build support for Analog Devices adis16201 dual-axis
-	  digital inclinometer and accelerometer.
-
-	  To compile this driver as a module, say M here: the module will
-	  be called adis16201.
-
 config ADIS16203
 	tristate "Analog Devices ADIS16203 Programmable 360 Degrees Inclinometer"
 	depends on SPI
@@ -27,75 +16,4 @@ config ADIS16203
 	  To compile this driver as a module, say M here: the module will be
 	  called adis16203.
 
-config ADIS16204
-	tristate "Analog Devices ADIS16204 Programmable High-g Digital Impact Sensor and Recorder"
-	depends on SPI
-	select IIO_ADIS_LIB
-	select IIO_ADIS_LIB_BUFFER if IIO_BUFFER
-	help
-	  Say Y here to build support for Analog Devices adis16204 Programmable
-	  High-g Digital Impact Sensor and Recorder.
-
-	  To compile this driver as a module, say M here: the module will be
-	  called adis16204.
-
-config ADIS16209
-	tristate "Analog Devices ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer"
-	depends on SPI
-	select IIO_ADIS_LIB
-	select IIO_ADIS_LIB_BUFFER if IIO_BUFFER
-	help
-	  Say Y here to build support for Analog Devices adis16209 dual-axis digital inclinometer
-	  and accelerometer.
-
-	  To compile this driver as a module, say M here: the module will be
-	  called adis16209.
-
-config ADIS16220
-	tristate "Analog Devices ADIS16220 Programmable Digital Vibration Sensor"
-	depends on SPI
-	select IIO_ADIS_LIB
-	help
-	  Say Y here to build support for Analog Devices adis16220 programmable
-	  digital vibration sensor.
-
-	  To compile this driver as a module, say M here: the module will be
-	  called adis16220.
-
-config ADIS16240
-	tristate "Analog Devices ADIS16240 Programmable Impact Sensor and Recorder"
-	depends on SPI
-	select IIO_ADIS_LIB
-	select IIO_ADIS_LIB_BUFFER if IIO_BUFFER
-	help
-	  Say Y here to build support for Analog Devices adis16240 programmable
-	  impact Sensor and recorder.
-
-	  To compile this driver as a module, say M here: the module will be
-	  called adis16240.
-
-config LIS3L02DQ
-	tristate "ST Microelectronics LIS3L02DQ Accelerometer Driver"
-	depends on SPI
-	select IIO_TRIGGER if IIO_BUFFER
-	depends on !IIO_BUFFER || IIO_KFIFO_BUF
-	depends on GPIOLIB || COMPILE_TEST
-	help
-	  Say Y here to build SPI support for the ST microelectronics
-	  accelerometer. The driver supplies direct access via sysfs files
-	  and an event interface via a character device.
-
-	  To compile this driver as a module, say M here: the module will be
-	  called lis3l02dq.
-
-config SCA3000
-	depends on IIO_BUFFER
-	depends on SPI
-	tristate "VTI SCA3000 series accelerometers"
-	help
-	  Say Y here to build support for the VTI SCA3000 series of SPI
-	  accelerometers. These devices use a hardware ring buffer.
-
-	  To compile this driver as a module, say M here: the module will be
-	  called sca3000.
 endmenu
diff --git a/drivers/staging/iio/accel/Makefile b/drivers/staging/iio/accel/Makefile
index 1ed137f1a506..acac7bc9b9c0 100644
--- a/drivers/staging/iio/accel/Makefile
+++ b/drivers/staging/iio/accel/Makefile
@@ -1,28 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O accelerometer drivers
 #
 
-adis16201-y             := adis16201_core.o
-obj-$(CONFIG_ADIS16201) += adis16201.o
-
-adis16203-y             := adis16203_core.o
 obj-$(CONFIG_ADIS16203) += adis16203.o
-
-adis16204-y             := adis16204_core.o
-obj-$(CONFIG_ADIS16204) += adis16204.o
-
-adis16209-y             := adis16209_core.o
-obj-$(CONFIG_ADIS16209) += adis16209.o
-
-adis16220-y             := adis16220_core.o
-obj-$(CONFIG_ADIS16220) += adis16220.o
-
-adis16240-y             := adis16240_core.o
-obj-$(CONFIG_ADIS16240) += adis16240.o
-
-lis3l02dq-y		:= lis3l02dq_core.o
-lis3l02dq-$(CONFIG_IIO_BUFFER) += lis3l02dq_ring.o
-obj-$(CONFIG_LIS3L02DQ)	+= lis3l02dq.o
-
-sca3000-y		:= sca3000_core.o sca3000_ring.o
-obj-$(CONFIG_SCA3000)	+= sca3000.o
diff --git a/drivers/staging/iio/accel/adis16201.h b/drivers/staging/iio/accel/adis16201.h
deleted file mode 100644
index e6b8c9af6e22..000000000000
--- a/drivers/staging/iio/accel/adis16201.h
+++ /dev/null
@@ -1,66 +0,0 @@
-#ifndef SPI_ADIS16201_H_
-#define SPI_ADIS16201_H_
-
-#define ADIS16201_STARTUP_DELAY	220 /* ms */
-
-#define ADIS16201_FLASH_CNT      0x00 /* Flash memory write count */
-#define ADIS16201_SUPPLY_OUT     0x02 /* Output, power supply */
-#define ADIS16201_XACCL_OUT      0x04 /* Output, x-axis accelerometer */
-#define ADIS16201_YACCL_OUT      0x06 /* Output, y-axis accelerometer */
-#define ADIS16201_AUX_ADC        0x08 /* Output, auxiliary ADC input */
-#define ADIS16201_TEMP_OUT       0x0A /* Output, temperature */
-#define ADIS16201_XINCL_OUT      0x0C /* Output, x-axis inclination */
-#define ADIS16201_YINCL_OUT      0x0E /* Output, y-axis inclination */
-#define ADIS16201_XACCL_OFFS     0x10 /* Calibration, x-axis acceleration offset */
-#define ADIS16201_YACCL_OFFS     0x12 /* Calibration, y-axis acceleration offset */
-#define ADIS16201_XACCL_SCALE    0x14 /* x-axis acceleration scale factor */
-#define ADIS16201_YACCL_SCALE    0x16 /* y-axis acceleration scale factor */
-#define ADIS16201_XINCL_OFFS     0x18 /* Calibration, x-axis inclination offset */
-#define ADIS16201_YINCL_OFFS     0x1A /* Calibration, y-axis inclination offset */
-#define ADIS16201_XINCL_SCALE    0x1C /* x-axis inclination scale factor */
-#define ADIS16201_YINCL_SCALE    0x1E /* y-axis inclination scale factor */
-#define ADIS16201_ALM_MAG1       0x20 /* Alarm 1 amplitude threshold */
-#define ADIS16201_ALM_MAG2       0x22 /* Alarm 2 amplitude threshold */
-#define ADIS16201_ALM_SMPL1      0x24 /* Alarm 1, sample period */
-#define ADIS16201_ALM_SMPL2      0x26 /* Alarm 2, sample period */
-#define ADIS16201_ALM_CTRL       0x28 /* Alarm control */
-#define ADIS16201_AUX_DAC        0x30 /* Auxiliary DAC data */
-#define ADIS16201_GPIO_CTRL      0x32 /* General-purpose digital input/output control */
-#define ADIS16201_MSC_CTRL       0x34 /* Miscellaneous control */
-#define ADIS16201_SMPL_PRD       0x36 /* Internal sample period (rate) control */
-#define ADIS16201_AVG_CNT        0x38 /* Operation, filter configuration */
-#define ADIS16201_SLP_CNT        0x3A /* Operation, sleep mode control */
-#define ADIS16201_DIAG_STAT      0x3C /* Diagnostics, system status register */
-#define ADIS16201_GLOB_CMD       0x3E /* Operation, system command register */
-
-/* MSC_CTRL */
-#define ADIS16201_MSC_CTRL_SELF_TEST_EN	        BIT(8)  /* Self-test enable */
-#define ADIS16201_MSC_CTRL_DATA_RDY_EN	        BIT(2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16201_MSC_CTRL_ACTIVE_HIGH	        BIT(1)  /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1	BIT(0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
-
-/* DIAG_STAT */
-#define ADIS16201_DIAG_STAT_ALARM2        BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16201_DIAG_STAT_ALARM1        BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16201_DIAG_STAT_SPI_FAIL_BIT   3 /* SPI communications failure */
-#define ADIS16201_DIAG_STAT_FLASH_UPT_BIT  2 /* Flash update failure */
-#define ADIS16201_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply above 3.625 V */
-#define ADIS16201_DIAG_STAT_POWER_LOW_BIT  0 /* Power supply below 3.15 V */
-
-/* GLOB_CMD */
-#define ADIS16201_GLOB_CMD_SW_RESET	BIT(7)
-#define ADIS16201_GLOB_CMD_FACTORY_CAL	BIT(1)
-
-#define ADIS16201_ERROR_ACTIVE          BIT(14)
-
-enum adis16201_scan {
-	ADIS16201_SCAN_ACC_X,
-	ADIS16201_SCAN_ACC_Y,
-	ADIS16201_SCAN_INCLI_X,
-	ADIS16201_SCAN_INCLI_Y,
-	ADIS16201_SCAN_SUPPLY,
-	ADIS16201_SCAN_AUX_ADC,
-	ADIS16201_SCAN_TEMP,
-};
-
-#endif /* SPI_ADIS16201_H_ */
diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c
deleted file mode 100644
index 10db685813c9..000000000000
--- a/drivers/staging/iio/accel/adis16201_core.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * ADIS16201 Programmable Digital Vibration Sensor driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#include "adis16201.h"
-
-static const u8 adis16201_addresses[] = {
-	[ADIS16201_SCAN_ACC_X] = ADIS16201_XACCL_OFFS,
-	[ADIS16201_SCAN_ACC_Y] = ADIS16201_YACCL_OFFS,
-	[ADIS16201_SCAN_INCLI_X] = ADIS16201_XINCL_OFFS,
-	[ADIS16201_SCAN_INCLI_Y] = ADIS16201_YINCL_OFFS,
-};
-
-static int adis16201_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val, int *val2,
-			      long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int ret;
-	int bits;
-	u8 addr;
-	s16 val16;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		return adis_single_conversion(indio_dev, chan,
-				ADIS16201_ERROR_ACTIVE, val);
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			if (chan->channel == 0) {
-				*val = 1;
-				*val2 = 220000; /* 1.22 mV */
-			} else {
-				*val = 0;
-				*val2 = 610000; /* 0.610 mV */
-			}
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_TEMP:
-			*val = -470; /* 0.47 C */
-			*val2 = 0;
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_ACCEL:
-			*val = 0;
-			*val2 = IIO_G_TO_M_S_2(462400); /* 0.4624 mg */
-			return IIO_VAL_INT_PLUS_NANO;
-		case IIO_INCLI:
-			*val = 0;
-			*val2 = 100000; /* 0.1 degree */
-			return IIO_VAL_INT_PLUS_MICRO;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = 25000 / -470 - 1278; /* 25 C = 1278 */
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		switch (chan->type) {
-		case IIO_ACCEL:
-			bits = 12;
-			break;
-		case IIO_INCLI:
-			bits = 9;
-			break;
-		default:
-			return -EINVAL;
-		}
-		mutex_lock(&indio_dev->mlock);
-		addr = adis16201_addresses[chan->scan_index];
-		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-		val16 &= (1 << bits) - 1;
-		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
-		*val = val16;
-		mutex_unlock(&indio_dev->mlock);
-		return IIO_VAL_INT;
-	}
-	return -EINVAL;
-}
-
-static int adis16201_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int bits;
-	s16 val16;
-	u8 addr;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBBIAS:
-		switch (chan->type) {
-		case IIO_ACCEL:
-			bits = 12;
-			break;
-		case IIO_INCLI:
-			bits = 9;
-			break;
-		default:
-			return -EINVAL;
-		}
-		val16 = val & ((1 << bits) - 1);
-		addr = adis16201_addresses[chan->scan_index];
-		return adis_write_reg_16(st, addr, val16);
-	}
-	return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16201_channels[] = {
-	ADIS_SUPPLY_CHAN(ADIS16201_SUPPLY_OUT, ADIS16201_SCAN_SUPPLY, 0, 12),
-	ADIS_TEMP_CHAN(ADIS16201_TEMP_OUT, ADIS16201_SCAN_TEMP, 0, 12),
-	ADIS_ACCEL_CHAN(X, ADIS16201_XACCL_OUT, ADIS16201_SCAN_ACC_X,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
-	ADIS_ACCEL_CHAN(Y, ADIS16201_YACCL_OUT, ADIS16201_SCAN_ACC_Y,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
-	ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC, ADIS16201_SCAN_AUX_ADC, 0, 12),
-	ADIS_INCLI_CHAN(X, ADIS16201_XINCL_OUT, ADIS16201_SCAN_INCLI_X,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
-	ADIS_INCLI_CHAN(X, ADIS16201_YINCL_OUT, ADIS16201_SCAN_INCLI_Y,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
-	IIO_CHAN_SOFT_TIMESTAMP(7)
-};
-
-static const struct iio_info adis16201_info = {
-	.read_raw = &adis16201_read_raw,
-	.write_raw = &adis16201_write_raw,
-	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
-};
-
-static const char * const adis16201_status_error_msgs[] = {
-	[ADIS16201_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
-	[ADIS16201_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
-	[ADIS16201_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
-	[ADIS16201_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
-};
-
-static const struct adis_data adis16201_data = {
-	.read_delay = 20,
-	.msc_ctrl_reg = ADIS16201_MSC_CTRL,
-	.glob_cmd_reg = ADIS16201_GLOB_CMD,
-	.diag_stat_reg = ADIS16201_DIAG_STAT,
-
-	.self_test_mask = ADIS16201_MSC_CTRL_SELF_TEST_EN,
-	.startup_delay = ADIS16201_STARTUP_DELAY,
-
-	.status_error_msgs = adis16201_status_error_msgs,
-	.status_error_mask = BIT(ADIS16201_DIAG_STAT_SPI_FAIL_BIT) |
-		BIT(ADIS16201_DIAG_STAT_FLASH_UPT_BIT) |
-		BIT(ADIS16201_DIAG_STAT_POWER_HIGH_BIT) |
-		BIT(ADIS16201_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16201_probe(struct spi_device *spi)
-{
-	int ret;
-	struct adis *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &adis16201_info;
-
-	indio_dev->channels = adis16201_channels;
-	indio_dev->num_channels = ARRAY_SIZE(adis16201_channels);
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = adis_init(st, indio_dev, spi, &adis16201_data);
-	if (ret)
-		return ret;
-	ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
-	if (ret)
-		return ret;
-
-	/* Get the device into a sane initial state */
-	ret = adis_initial_startup(st);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		goto error_cleanup_buffer_trigger;
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-	return ret;
-}
-
-static int adis16201_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-
-	return 0;
-}
-
-static struct spi_driver adis16201_driver = {
-	.driver = {
-		.name = "adis16201",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16201_probe,
-	.remove = adis16201_remove,
-};
-module_spi_driver(adis16201_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16201 Programmable Digital Vibration Sensor driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16201");
diff --git a/drivers/staging/iio/accel/adis16203.c b/drivers/staging/iio/accel/adis16203.c
new file mode 100644
index 000000000000..830ff38fda92
--- /dev/null
+++ b/drivers/staging/iio/accel/adis16203.c
@@ -0,0 +1,315 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * ADIS16203 Programmable 360 Degrees Inclinometer
+ *
+ * Copyright 2010 Analog Devices Inc.
+ */
+
+#include <linux/device.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/imu/adis.h>
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+
+#define ADIS16203_STARTUP_DELAY 220 /* ms */
+
+/* Flash memory write count */
+#define ADIS16203_FLASH_CNT      0x00
+
+/* Output, power supply */
+#define ADIS16203_SUPPLY_OUT     0x02
+
+/* Output, auxiliary ADC input */
+#define ADIS16203_AUX_ADC        0x08
+
+/* Output, temperature */
+#define ADIS16203_TEMP_OUT       0x0A
+
+/* Output, x-axis inclination */
+#define ADIS16203_XINCL_OUT      0x0C
+
+/* Output, y-axis inclination */
+#define ADIS16203_YINCL_OUT      0x0E
+
+/* Incline null calibration */
+#define ADIS16203_INCL_NULL      0x18
+
+/* Alarm 1 amplitude threshold */
+#define ADIS16203_ALM_MAG1       0x20
+
+/* Alarm 2 amplitude threshold */
+#define ADIS16203_ALM_MAG2       0x22
+
+/* Alarm 1, sample period */
+#define ADIS16203_ALM_SMPL1      0x24
+
+/* Alarm 2, sample period */
+#define ADIS16203_ALM_SMPL2      0x26
+
+/* Alarm control */
+#define ADIS16203_ALM_CTRL       0x28
+
+/* Auxiliary DAC data */
+#define ADIS16203_AUX_DAC        0x30
+
+/* General-purpose digital input/output control */
+#define ADIS16203_GPIO_CTRL      0x32
+
+/* Miscellaneous control */
+#define ADIS16203_MSC_CTRL       0x34
+
+/* Internal sample period (rate) control */
+#define ADIS16203_SMPL_PRD       0x36
+
+/* Operation, filter configuration */
+#define ADIS16203_AVG_CNT        0x38
+
+/* Operation, sleep mode control */
+#define ADIS16203_SLP_CNT        0x3A
+
+/* Diagnostics, system status register */
+#define ADIS16203_DIAG_STAT      0x3C
+
+/* Operation, system command register */
+#define ADIS16203_GLOB_CMD       0x3E
+
+/* MSC_CTRL */
+
+/* Self-test at power-on: 1 = disabled, 0 = enabled */
+#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST      BIT(10)
+
+/* Reverses rotation of both inclination outputs */
+#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN       BIT(9)
+
+/* Self-test enable */
+#define ADIS16203_MSC_CTRL_SELF_TEST_EN         BIT(8)
+
+/* Data-ready enable: 1 = enabled, 0 = disabled */
+#define ADIS16203_MSC_CTRL_DATA_RDY_EN          BIT(2)
+
+/* Data-ready polarity: 1 = active high, 0 = active low */
+#define ADIS16203_MSC_CTRL_ACTIVE_HIGH          BIT(1)
+
+/* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
+#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1        BIT(0)
+
+/* DIAG_STAT */
+
+/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16203_DIAG_STAT_ALARM2        BIT(9)
+
+/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
+#define ADIS16203_DIAG_STAT_ALARM1        BIT(8)
+
+/* Self-test diagnostic error flag */
+#define ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT 5
+
+/* SPI communications failure */
+#define ADIS16203_DIAG_STAT_SPI_FAIL_BIT      3
+
+/* Flash update failure */
+#define ADIS16203_DIAG_STAT_FLASH_UPT_BIT     2
+
+/* Power supply above 3.625 V */
+#define ADIS16203_DIAG_STAT_POWER_HIGH_BIT    1
+
+/* Power supply below 2.975 V */
+#define ADIS16203_DIAG_STAT_POWER_LOW_BIT     0
+
+/* GLOB_CMD */
+
+#define ADIS16203_GLOB_CMD_SW_RESET     BIT(7)
+#define ADIS16203_GLOB_CMD_CLEAR_STAT   BIT(4)
+#define ADIS16203_GLOB_CMD_FACTORY_CAL  BIT(1)
+
+#define ADIS16203_ERROR_ACTIVE          BIT(14)
+
+enum adis16203_scan {
+	 ADIS16203_SCAN_INCLI_X,
+	 ADIS16203_SCAN_INCLI_Y,
+	 ADIS16203_SCAN_SUPPLY,
+	 ADIS16203_SCAN_AUX_ADC,
+	 ADIS16203_SCAN_TEMP,
+};
+
+#define DRIVER_NAME		"adis16203"
+
+static const u8 adis16203_addresses[] = {
+	[ADIS16203_SCAN_INCLI_X] = ADIS16203_INCL_NULL,
+};
+
+static int adis16203_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct adis *st = iio_priv(indio_dev);
+	/* currently only one writable parameter which keeps this simple */
+	u8 addr = adis16203_addresses[chan->scan_index];
+
+	return adis_write_reg_16(st, addr, val & 0x3FFF);
+}
+
+static int adis16203_read_raw(struct iio_dev *indio_dev,
+			      struct iio_chan_spec const *chan,
+			      int *val, int *val2,
+			      long mask)
+{
+	struct adis *st = iio_priv(indio_dev);
+	int ret;
+	u8 addr;
+	s16 val16;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		return adis_single_conversion(indio_dev, chan,
+				ADIS16203_ERROR_ACTIVE, val);
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_VOLTAGE:
+			if (chan->channel == 0) {
+				*val = 1;
+				*val2 = 220000; /* 1.22 mV */
+			} else {
+				*val = 0;
+				*val2 = 610000; /* 0.61 mV */
+			}
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_TEMP:
+			*val = -470; /* -0.47 C */
+			*val2 = 0;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_INCLI:
+			*val = 0;
+			*val2 = 25000; /* 0.025 degree */
+			return IIO_VAL_INT_PLUS_MICRO;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_OFFSET:
+		*val = 25000 / -470 - 1278; /* 25 C = 1278 */
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		addr = adis16203_addresses[chan->scan_index];
+		ret = adis_read_reg_16(st, addr, &val16);
+		if (ret)
+			return ret;
+		*val = sign_extend32(val16, 13);
+		return IIO_VAL_INT;
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_chan_spec adis16203_channels[] = {
+	ADIS_SUPPLY_CHAN(ADIS16203_SUPPLY_OUT, ADIS16203_SCAN_SUPPLY, 0, 12),
+	ADIS_AUX_ADC_CHAN(ADIS16203_AUX_ADC, ADIS16203_SCAN_AUX_ADC, 0, 12),
+	ADIS_INCLI_CHAN(X, ADIS16203_XINCL_OUT, ADIS16203_SCAN_INCLI_X,
+			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
+	/* Fixme: Not what it appears to be - see data sheet */
+	ADIS_INCLI_CHAN(Y, ADIS16203_YINCL_OUT, ADIS16203_SCAN_INCLI_Y,
+			0, 0, 14),
+	ADIS_TEMP_CHAN(ADIS16203_TEMP_OUT, ADIS16203_SCAN_TEMP, 0, 12),
+	IIO_CHAN_SOFT_TIMESTAMP(5),
+};
+
+static const struct iio_info adis16203_info = {
+	.read_raw = adis16203_read_raw,
+	.write_raw = adis16203_write_raw,
+	.update_scan_mode = adis_update_scan_mode,
+};
+
+static const char * const adis16203_status_error_msgs[] = {
+	[ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
+	[ADIS16203_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
+	[ADIS16203_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
+	[ADIS16203_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
+	[ADIS16203_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 2.975V",
+};
+
+static const struct adis_timeout adis16203_timeouts = {
+	.reset_ms = ADIS16203_STARTUP_DELAY,
+	.sw_reset_ms = ADIS16203_STARTUP_DELAY,
+	.self_test_ms = ADIS16203_STARTUP_DELAY
+};
+
+static const struct adis_data adis16203_data = {
+	.read_delay = 20,
+	.msc_ctrl_reg = ADIS16203_MSC_CTRL,
+	.glob_cmd_reg = ADIS16203_GLOB_CMD,
+	.diag_stat_reg = ADIS16203_DIAG_STAT,
+
+	.self_test_mask = ADIS16203_MSC_CTRL_SELF_TEST_EN,
+	.self_test_reg = ADIS16203_MSC_CTRL,
+	.self_test_no_autoclear = true,
+	.timeouts = &adis16203_timeouts,
+
+	.status_error_msgs = adis16203_status_error_msgs,
+	.status_error_mask = BIT(ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT) |
+		BIT(ADIS16203_DIAG_STAT_SPI_FAIL_BIT) |
+		BIT(ADIS16203_DIAG_STAT_FLASH_UPT_BIT) |
+		BIT(ADIS16203_DIAG_STAT_POWER_HIGH_BIT) |
+		BIT(ADIS16203_DIAG_STAT_POWER_LOW_BIT),
+};
+
+static int adis16203_probe(struct spi_device *spi)
+{
+	int ret;
+	struct iio_dev *indio_dev;
+	struct adis *st;
+
+	/* setup the industrialio driver allocated elements */
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
+	st = iio_priv(indio_dev);
+	/* this is only used for removal purposes */
+	spi_set_drvdata(spi, indio_dev);
+
+	indio_dev->name = spi->dev.driver->name;
+	indio_dev->channels = adis16203_channels;
+	indio_dev->num_channels = ARRAY_SIZE(adis16203_channels);
+	indio_dev->info = &adis16203_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = adis_init(st, indio_dev, spi, &adis16203_data);
+	if (ret)
+		return ret;
+
+	ret = devm_adis_setup_buffer_and_trigger(st, indio_dev, NULL);
+	if (ret)
+		return ret;
+
+	/* Get the device into a sane initial state */
+	ret = __adis_initial_startup(st);
+	if (ret)
+		return ret;
+
+	return devm_iio_device_register(&spi->dev, indio_dev);
+}
+
+static const struct of_device_id adis16203_of_match[] = {
+	{ .compatible = "adi,adis16203" },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, adis16203_of_match);
+
+static struct spi_driver adis16203_driver = {
+	.driver = {
+		.name = "adis16203",
+		.of_match_table = adis16203_of_match,
+	},
+	.probe = adis16203_probe,
+};
+module_spi_driver(adis16203_driver);
+
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_DESCRIPTION("Analog Devices ADIS16203 Programmable 360 Degrees Inclinometer");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16203");
+MODULE_IMPORT_NS("IIO_ADISLIB");
diff --git a/drivers/staging/iio/accel/adis16203.h b/drivers/staging/iio/accel/adis16203.h
deleted file mode 100644
index 6426e38bf006..000000000000
--- a/drivers/staging/iio/accel/adis16203.h
+++ /dev/null
@@ -1,59 +0,0 @@
-#ifndef SPI_ADIS16203_H_
-#define SPI_ADIS16203_H_
-
-#define ADIS16203_STARTUP_DELAY	220 /* ms */
-
-#define ADIS16203_FLASH_CNT      0x00 /* Flash memory write count */
-#define ADIS16203_SUPPLY_OUT     0x02 /* Output, power supply */
-#define ADIS16203_AUX_ADC        0x08 /* Output, auxiliary ADC input */
-#define ADIS16203_TEMP_OUT       0x0A /* Output, temperature */
-#define ADIS16203_XINCL_OUT      0x0C /* Output, x-axis inclination */
-#define ADIS16203_YINCL_OUT      0x0E /* Output, y-axis inclination */
-#define ADIS16203_INCL_NULL      0x18 /* Incline null calibration */
-#define ADIS16203_ALM_MAG1       0x20 /* Alarm 1 amplitude threshold */
-#define ADIS16203_ALM_MAG2       0x22 /* Alarm 2 amplitude threshold */
-#define ADIS16203_ALM_SMPL1      0x24 /* Alarm 1, sample period */
-#define ADIS16203_ALM_SMPL2      0x26 /* Alarm 2, sample period */
-#define ADIS16203_ALM_CTRL       0x28 /* Alarm control */
-#define ADIS16203_AUX_DAC        0x30 /* Auxiliary DAC data */
-#define ADIS16203_GPIO_CTRL      0x32 /* General-purpose digital input/output control */
-#define ADIS16203_MSC_CTRL       0x34 /* Miscellaneous control */
-#define ADIS16203_SMPL_PRD       0x36 /* Internal sample period (rate) control */
-#define ADIS16203_AVG_CNT        0x38 /* Operation, filter configuration */
-#define ADIS16203_SLP_CNT        0x3A /* Operation, sleep mode control */
-#define ADIS16203_DIAG_STAT      0x3C /* Diagnostics, system status register */
-#define ADIS16203_GLOB_CMD       0x3E /* Operation, system command register */
-
-/* MSC_CTRL */
-#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST	BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
-#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN	BIT(9)  /* Reverses rotation of both inclination outputs */
-#define ADIS16203_MSC_CTRL_SELF_TEST_EN	        BIT(8)  /* Self-test enable */
-#define ADIS16203_MSC_CTRL_DATA_RDY_EN	        BIT(2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16203_MSC_CTRL_ACTIVE_HIGH	        BIT(1)  /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1	BIT(0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
-
-/* DIAG_STAT */
-#define ADIS16203_DIAG_STAT_ALARM2        BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16203_DIAG_STAT_ALARM1        BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag */
-#define ADIS16203_DIAG_STAT_SPI_FAIL_BIT      3 /* SPI communications failure */
-#define ADIS16203_DIAG_STAT_FLASH_UPT_BIT     2 /* Flash update failure */
-#define ADIS16203_DIAG_STAT_POWER_HIGH_BIT    1 /* Power supply above 3.625 V */
-#define ADIS16203_DIAG_STAT_POWER_LOW_BIT     0 /* Power supply below 3.15 V */
-
-/* GLOB_CMD */
-#define ADIS16203_GLOB_CMD_SW_RESET	BIT(7)
-#define ADIS16203_GLOB_CMD_CLEAR_STAT	BIT(4)
-#define ADIS16203_GLOB_CMD_FACTORY_CAL	BIT(1)
-
-#define ADIS16203_ERROR_ACTIVE          BIT(14)
-
-enum adis16203_scan {
-	ADIS16203_SCAN_INCLI_X,
-	ADIS16203_SCAN_INCLI_Y,
-	ADIS16203_SCAN_SUPPLY,
-	ADIS16203_SCAN_AUX_ADC,
-	ADIS16203_SCAN_TEMP,
-};
-
-#endif /* SPI_ADIS16203_H_ */
diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c
deleted file mode 100644
index fb593d23d5bc..000000000000
--- a/drivers/staging/iio/accel/adis16203_core.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/*
- * ADIS16203 Programmable Digital Vibration Sensor driver
- *
- * Copyright 2030 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#include "adis16203.h"
-
-#define DRIVER_NAME		"adis16203"
-
-static const u8 adis16203_addresses[] = {
-	[ADIS16203_SCAN_INCLI_X] = ADIS16203_INCL_NULL,
-};
-
-static int adis16203_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	/* currently only one writable parameter which keeps this simple */
-	u8 addr = adis16203_addresses[chan->scan_index];
-
-	return adis_write_reg_16(st, addr, val & 0x3FFF);
-}
-
-static int adis16203_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val, int *val2,
-			      long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int ret;
-	int bits;
-	u8 addr;
-	s16 val16;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		return adis_single_conversion(indio_dev, chan,
-				ADIS16203_ERROR_ACTIVE, val);
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			if (chan->channel == 0) {
-				*val = 1;
-				*val2 = 220000; /* 1.22 mV */
-			} else {
-				*val = 0;
-				*val2 = 610000; /* 0.61 mV */
-			}
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_TEMP:
-			*val = -470; /* -0.47 C */
-			*val2 = 0;
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_INCLI:
-			*val = 0;
-			*val2 = 25000; /* 0.025 degree */
-			return IIO_VAL_INT_PLUS_MICRO;
-		default:
-			return -EINVAL;
-		}
-	case IIO_CHAN_INFO_OFFSET:
-		*val = 25000 / -470 - 1278; /* 25 C = 1278 */
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		bits = 14;
-		mutex_lock(&indio_dev->mlock);
-		addr = adis16203_addresses[chan->scan_index];
-		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-		val16 &= (1 << bits) - 1;
-		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
-		*val = val16;
-		mutex_unlock(&indio_dev->mlock);
-		return IIO_VAL_INT;
-	default:
-		return -EINVAL;
-	}
-}
-
-static const struct iio_chan_spec adis16203_channels[] = {
-	ADIS_SUPPLY_CHAN(ADIS16203_SUPPLY_OUT, ADIS16203_SCAN_SUPPLY, 0, 12),
-	ADIS_AUX_ADC_CHAN(ADIS16203_AUX_ADC, ADIS16203_SCAN_AUX_ADC, 0, 12),
-	ADIS_INCLI_CHAN(X, ADIS16203_XINCL_OUT, ADIS16203_SCAN_INCLI_X,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
-	/* Fixme: Not what it appears to be - see data sheet */
-	ADIS_INCLI_CHAN(Y, ADIS16203_YINCL_OUT, ADIS16203_SCAN_INCLI_Y,
-			0, 0, 14),
-	ADIS_TEMP_CHAN(ADIS16203_TEMP_OUT, ADIS16203_SCAN_TEMP, 0, 12),
-	IIO_CHAN_SOFT_TIMESTAMP(5),
-};
-
-static const struct iio_info adis16203_info = {
-	.read_raw = &adis16203_read_raw,
-	.write_raw = &adis16203_write_raw,
-	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
-};
-
-static const char * const adis16203_status_error_msgs[] = {
-	[ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
-	[ADIS16203_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
-	[ADIS16203_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
-	[ADIS16203_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
-	[ADIS16203_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
-};
-
-static const struct adis_data adis16203_data = {
-	.read_delay = 20,
-	.msc_ctrl_reg = ADIS16203_MSC_CTRL,
-	.glob_cmd_reg = ADIS16203_GLOB_CMD,
-	.diag_stat_reg = ADIS16203_DIAG_STAT,
-
-	.self_test_mask = ADIS16203_MSC_CTRL_SELF_TEST_EN,
-	.startup_delay = ADIS16203_STARTUP_DELAY,
-
-	.status_error_msgs = adis16203_status_error_msgs,
-	.status_error_mask = BIT(ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT) |
-		BIT(ADIS16203_DIAG_STAT_SPI_FAIL_BIT) |
-		BIT(ADIS16203_DIAG_STAT_FLASH_UPT_BIT) |
-		BIT(ADIS16203_DIAG_STAT_POWER_HIGH_BIT) |
-		BIT(ADIS16203_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16203_probe(struct spi_device *spi)
-{
-	int ret;
-	struct iio_dev *indio_dev;
-	struct adis *st;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->channels = adis16203_channels;
-	indio_dev->num_channels = ARRAY_SIZE(adis16203_channels);
-	indio_dev->info = &adis16203_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = adis_init(st, indio_dev, spi, &adis16203_data);
-	if (ret)
-		return ret;
-
-	ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
-	if (ret)
-		return ret;
-
-	/* Get the device into a sane initial state */
-	ret = adis_initial_startup(st);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-	return ret;
-}
-
-static int adis16203_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-
-	return 0;
-}
-
-static struct spi_driver adis16203_driver = {
-	.driver = {
-		.name = "adis16203",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16203_probe,
-	.remove = adis16203_remove,
-};
-module_spi_driver(adis16203_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16203 Programmable Digital Vibration Sensor driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16203");
diff --git a/drivers/staging/iio/accel/adis16204.h b/drivers/staging/iio/accel/adis16204.h
deleted file mode 100644
index 0b23f0b5c52f..000000000000
--- a/drivers/staging/iio/accel/adis16204.h
+++ /dev/null
@@ -1,68 +0,0 @@
-#ifndef SPI_ADIS16204_H_
-#define SPI_ADIS16204_H_
-
-#define ADIS16204_STARTUP_DELAY	220 /* ms */
-
-#define ADIS16204_FLASH_CNT      0x00 /* Flash memory write count */
-#define ADIS16204_SUPPLY_OUT     0x02 /* Output, power supply */
-#define ADIS16204_XACCL_OUT      0x04 /* Output, x-axis accelerometer */
-#define ADIS16204_YACCL_OUT      0x06 /* Output, y-axis accelerometer */
-#define ADIS16204_AUX_ADC        0x08 /* Output, auxiliary ADC input */
-#define ADIS16204_TEMP_OUT       0x0A /* Output, temperature */
-#define ADIS16204_X_PEAK_OUT     0x0C /* Twos complement */
-#define ADIS16204_Y_PEAK_OUT     0x0E /* Twos complement */
-#define ADIS16204_XACCL_NULL     0x10 /* Calibration, x-axis acceleration offset null */
-#define ADIS16204_YACCL_NULL     0x12 /* Calibration, y-axis acceleration offset null */
-#define ADIS16204_XACCL_SCALE    0x14 /* X-axis scale factor calibration register */
-#define ADIS16204_YACCL_SCALE    0x16 /* Y-axis scale factor calibration register */
-#define ADIS16204_XY_RSS_OUT     0x18 /* XY combined acceleration (RSS) */
-#define ADIS16204_XY_PEAK_OUT    0x1A /* Peak, XY combined output (RSS) */
-#define ADIS16204_CAP_BUF_1      0x1C /* Capture buffer output register 1 */
-#define ADIS16204_CAP_BUF_2      0x1E /* Capture buffer output register 2 */
-#define ADIS16204_ALM_MAG1       0x20 /* Alarm 1 amplitude threshold */
-#define ADIS16204_ALM_MAG2       0x22 /* Alarm 2 amplitude threshold */
-#define ADIS16204_ALM_CTRL       0x28 /* Alarm control */
-#define ADIS16204_CAPT_PNTR      0x2A /* Capture register address pointer */
-#define ADIS16204_AUX_DAC        0x30 /* Auxiliary DAC data */
-#define ADIS16204_GPIO_CTRL      0x32 /* General-purpose digital input/output control */
-#define ADIS16204_MSC_CTRL       0x34 /* Miscellaneous control */
-#define ADIS16204_SMPL_PRD       0x36 /* Internal sample period (rate) control */
-#define ADIS16204_AVG_CNT        0x38 /* Operation, filter configuration */
-#define ADIS16204_SLP_CNT        0x3A /* Operation, sleep mode control */
-#define ADIS16204_DIAG_STAT      0x3C /* Diagnostics, system status register */
-#define ADIS16204_GLOB_CMD       0x3E /* Operation, system command register */
-
-/* MSC_CTRL */
-#define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST	BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
-#define ADIS16204_MSC_CTRL_SELF_TEST_EN	        BIT(8)  /* Self-test enable */
-#define ADIS16204_MSC_CTRL_DATA_RDY_EN	        BIT(2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16204_MSC_CTRL_ACTIVE_HIGH	        BIT(1)  /* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16204_MSC_CTRL_DATA_RDY_DIO2	BIT(0)  /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
-
-/* DIAG_STAT */
-#define ADIS16204_DIAG_STAT_ALARM2        BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16204_DIAG_STAT_ALARM1        BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag: 1 = error condition,
-						0 = normal operation */
-#define ADIS16204_DIAG_STAT_SPI_FAIL_BIT      3 /* SPI communications failure */
-#define ADIS16204_DIAG_STAT_FLASH_UPT_BIT     2 /* Flash update failure */
-#define ADIS16204_DIAG_STAT_POWER_HIGH_BIT    1 /* Power supply above 3.625 V */
-#define ADIS16204_DIAG_STAT_POWER_LOW_BIT     0 /* Power supply below 2.975 V */
-
-/* GLOB_CMD */
-#define ADIS16204_GLOB_CMD_SW_RESET	BIT(7)
-#define ADIS16204_GLOB_CMD_CLEAR_STAT	BIT(4)
-#define ADIS16204_GLOB_CMD_FACTORY_CAL	BIT(1)
-
-#define ADIS16204_ERROR_ACTIVE          BIT(14)
-
-enum adis16204_scan {
-	ADIS16204_SCAN_ACC_X,
-	ADIS16204_SCAN_ACC_Y,
-	ADIS16204_SCAN_ACC_XY,
-	ADIS16204_SCAN_SUPPLY,
-	ADIS16204_SCAN_AUX_ADC,
-	ADIS16204_SCAN_TEMP,
-};
-
-#endif /* SPI_ADIS16204_H_ */
diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c
deleted file mode 100644
index ea0ac2467ac2..000000000000
--- a/drivers/staging/iio/accel/adis16204_core.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * ADIS16204 Programmable High-g Digital Impact Sensor and Recorder
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#include "adis16204.h"
-
-/* Unique to this driver currently */
-
-static const u8 adis16204_addresses[][2] = {
-	[ADIS16204_SCAN_ACC_X] = { ADIS16204_XACCL_NULL, ADIS16204_X_PEAK_OUT },
-	[ADIS16204_SCAN_ACC_Y] = { ADIS16204_YACCL_NULL, ADIS16204_Y_PEAK_OUT },
-	[ADIS16204_SCAN_ACC_XY] = { 0, ADIS16204_XY_PEAK_OUT },
-};
-
-static int adis16204_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val, int *val2,
-			      long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int ret;
-	int bits;
-	u8 addr;
-	s16 val16;
-	int addrind;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		return adis_single_conversion(indio_dev, chan,
-				ADIS16204_ERROR_ACTIVE, val);
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			if (chan->channel == 0) {
-				*val = 1;
-				*val2 = 220000; /* 1.22 mV */
-			} else {
-				*val = 0;
-				*val2 = 610000; /* 0.61 mV */
-			}
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_TEMP:
-			*val = -470; /* 0.47 C */
-			*val2 = 0;
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_ACCEL:
-			*val = 0;
-			switch (chan->channel2) {
-			case IIO_MOD_X:
-			case IIO_MOD_ROOT_SUM_SQUARED_X_Y:
-				*val2 = IIO_G_TO_M_S_2(17125); /* 17.125 mg */
-				break;
-			case IIO_MOD_Y:
-			case IIO_MOD_Z:
-				*val2 = IIO_G_TO_M_S_2(8407); /* 8.407 mg */
-				break;
-			}
-			return IIO_VAL_INT_PLUS_MICRO;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = 25000 / -470 - 1278; /* 25 C = 1278 */
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_CALIBBIAS:
-	case IIO_CHAN_INFO_PEAK:
-		if (mask == IIO_CHAN_INFO_CALIBBIAS) {
-			bits = 12;
-			addrind = 0;
-		} else { /* PEAK_SEPARATE */
-			bits = 14;
-			addrind = 1;
-		}
-		mutex_lock(&indio_dev->mlock);
-		addr = adis16204_addresses[chan->scan_index][addrind];
-		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-		val16 &= (1 << bits) - 1;
-		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
-		*val = val16;
-		mutex_unlock(&indio_dev->mlock);
-		return IIO_VAL_INT;
-	}
-	return -EINVAL;
-}
-
-static int adis16204_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int bits;
-	s16 val16;
-	u8 addr;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBBIAS:
-		switch (chan->type) {
-		case IIO_ACCEL:
-			bits = 12;
-			break;
-		default:
-			return -EINVAL;
-		}
-		val16 = val & ((1 << bits) - 1);
-		addr = adis16204_addresses[chan->scan_index][1];
-		return adis_write_reg_16(st, addr, val16);
-	}
-	return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16204_channels[] = {
-	ADIS_SUPPLY_CHAN(ADIS16204_SUPPLY_OUT, ADIS16204_SCAN_SUPPLY, 0, 12),
-	ADIS_AUX_ADC_CHAN(ADIS16204_AUX_ADC, ADIS16204_SCAN_AUX_ADC, 0, 12),
-	ADIS_TEMP_CHAN(ADIS16204_TEMP_OUT, ADIS16204_SCAN_TEMP, 0, 12),
-	ADIS_ACCEL_CHAN(X, ADIS16204_XACCL_OUT, ADIS16204_SCAN_ACC_X,
-			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
-			0, 14),
-	ADIS_ACCEL_CHAN(Y, ADIS16204_YACCL_OUT, ADIS16204_SCAN_ACC_Y,
-			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
-			0, 14),
-	ADIS_ACCEL_CHAN(ROOT_SUM_SQUARED_X_Y, ADIS16204_XY_RSS_OUT,
-			ADIS16204_SCAN_ACC_XY, BIT(IIO_CHAN_INFO_PEAK), 0, 14),
-	IIO_CHAN_SOFT_TIMESTAMP(5),
-};
-
-static const struct iio_info adis16204_info = {
-	.read_raw = &adis16204_read_raw,
-	.write_raw = &adis16204_write_raw,
-	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
-};
-
-static const char * const adis16204_status_error_msgs[] = {
-	[ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
-	[ADIS16204_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
-	[ADIS16204_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
-	[ADIS16204_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
-	[ADIS16204_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 2.975V",
-};
-
-static const struct adis_data adis16204_data = {
-	.read_delay = 20,
-	.msc_ctrl_reg = ADIS16204_MSC_CTRL,
-	.glob_cmd_reg = ADIS16204_GLOB_CMD,
-	.diag_stat_reg = ADIS16204_DIAG_STAT,
-
-	.self_test_mask = ADIS16204_MSC_CTRL_SELF_TEST_EN,
-	.startup_delay = ADIS16204_STARTUP_DELAY,
-
-	.status_error_msgs = adis16204_status_error_msgs,
-	.status_error_mask = BIT(ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT) |
-		BIT(ADIS16204_DIAG_STAT_SPI_FAIL_BIT) |
-		BIT(ADIS16204_DIAG_STAT_FLASH_UPT_BIT) |
-		BIT(ADIS16204_DIAG_STAT_POWER_HIGH_BIT) |
-		BIT(ADIS16204_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16204_probe(struct spi_device *spi)
-{
-	int ret;
-	struct adis *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &adis16204_info;
-	indio_dev->channels = adis16204_channels;
-	indio_dev->num_channels = ARRAY_SIZE(adis16204_channels);
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = adis_init(st, indio_dev, spi, &adis16204_data);
-	if (ret)
-		return ret;
-
-	ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
-	if (ret)
-		return ret;
-
-	/* Get the device into a sane initial state */
-	ret = adis_initial_startup(st);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-	return ret;
-}
-
-static int adis16204_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-
-	return 0;
-}
-
-static struct spi_driver adis16204_driver = {
-	.driver = {
-		.name = "adis16204",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16204_probe,
-	.remove = adis16204_remove,
-};
-module_spi_driver(adis16204_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("ADIS16204 High-g Digital Impact Sensor and Recorder");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16204");
diff --git a/drivers/staging/iio/accel/adis16209.h b/drivers/staging/iio/accel/adis16209.h
deleted file mode 100644
index 813698d18ec8..000000000000
--- a/drivers/staging/iio/accel/adis16209.h
+++ /dev/null
@@ -1,105 +0,0 @@
-#ifndef SPI_ADIS16209_H_
-#define SPI_ADIS16209_H_
-
-#define ADIS16209_STARTUP_DELAY	220 /* ms */
-
-/* Flash memory write count */
-#define ADIS16209_FLASH_CNT      0x00
-/* Output, power supply */
-#define ADIS16209_SUPPLY_OUT     0x02
-/* Output, x-axis accelerometer */
-#define ADIS16209_XACCL_OUT      0x04
-/* Output, y-axis accelerometer */
-#define ADIS16209_YACCL_OUT      0x06
-/* Output, auxiliary ADC input */
-#define ADIS16209_AUX_ADC        0x08
-/* Output, temperature */
-#define ADIS16209_TEMP_OUT       0x0A
-/* Output, x-axis inclination */
-#define ADIS16209_XINCL_OUT      0x0C
-/* Output, y-axis inclination */
-#define ADIS16209_YINCL_OUT      0x0E
-/* Output, +/-180 vertical rotational position */
-#define ADIS16209_ROT_OUT        0x10
-/* Calibration, x-axis acceleration offset null */
-#define ADIS16209_XACCL_NULL     0x12
-/* Calibration, y-axis acceleration offset null */
-#define ADIS16209_YACCL_NULL     0x14
-/* Calibration, x-axis inclination offset null */
-#define ADIS16209_XINCL_NULL     0x16
-/* Calibration, y-axis inclination offset null */
-#define ADIS16209_YINCL_NULL     0x18
-/* Calibration, vertical rotation offset null */
-#define ADIS16209_ROT_NULL       0x1A
-/* Alarm 1 amplitude threshold */
-#define ADIS16209_ALM_MAG1       0x20
-/* Alarm 2 amplitude threshold */
-#define ADIS16209_ALM_MAG2       0x22
-/* Alarm 1, sample period */
-#define ADIS16209_ALM_SMPL1      0x24
-/* Alarm 2, sample period */
-#define ADIS16209_ALM_SMPL2      0x26
-/* Alarm control */
-#define ADIS16209_ALM_CTRL       0x28
-/* Auxiliary DAC data */
-#define ADIS16209_AUX_DAC        0x30
-/* General-purpose digital input/output control */
-#define ADIS16209_GPIO_CTRL      0x32
-/* Miscellaneous control */
-#define ADIS16209_MSC_CTRL       0x34
-/* Internal sample period (rate) control */
-#define ADIS16209_SMPL_PRD       0x36
-/* Operation, filter configuration */
-#define ADIS16209_AVG_CNT        0x38
-/* Operation, sleep mode control */
-#define ADIS16209_SLP_CNT        0x3A
-/* Diagnostics, system status register */
-#define ADIS16209_DIAG_STAT      0x3C
-/* Operation, system command register */
-#define ADIS16209_GLOB_CMD       0x3E
-
-/* MSC_CTRL */
-/* Self-test at power-on: 1 = disabled, 0 = enabled */
-#define ADIS16209_MSC_CTRL_PWRUP_SELF_TEST	BIT(10)
-/* Self-test enable */
-#define ADIS16209_MSC_CTRL_SELF_TEST_EN	        BIT(8)
-/* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16209_MSC_CTRL_DATA_RDY_EN	        BIT(2)
-/* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16209_MSC_CTRL_ACTIVE_HIGH	        BIT(1)
-/* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
-#define ADIS16209_MSC_CTRL_DATA_RDY_DIO2	BIT(0)
-
-/* DIAG_STAT */
-/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16209_DIAG_STAT_ALARM2        BIT(9)
-/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16209_DIAG_STAT_ALARM1        BIT(8)
-/* Self-test diagnostic error flag: 1 = error condition, 0 = normal operation */
-#define ADIS16209_DIAG_STAT_SELFTEST_FAIL_BIT	5
-/* SPI communications failure */
-#define ADIS16209_DIAG_STAT_SPI_FAIL_BIT	3
-/* Flash update failure */
-#define ADIS16209_DIAG_STAT_FLASH_UPT_BIT	2
-/* Power supply above 3.625 V */
-#define ADIS16209_DIAG_STAT_POWER_HIGH_BIT	1
-/* Power supply below 3.15 V */
-#define ADIS16209_DIAG_STAT_POWER_LOW_BIT	0
-
-/* GLOB_CMD */
-#define ADIS16209_GLOB_CMD_SW_RESET	BIT(7)
-#define ADIS16209_GLOB_CMD_CLEAR_STAT	BIT(4)
-#define ADIS16209_GLOB_CMD_FACTORY_CAL	BIT(1)
-
-#define ADIS16209_ERROR_ACTIVE          BIT(14)
-
-#define ADIS16209_SCAN_SUPPLY	0
-#define ADIS16209_SCAN_ACC_X	1
-#define ADIS16209_SCAN_ACC_Y	2
-#define ADIS16209_SCAN_AUX_ADC	3
-#define ADIS16209_SCAN_TEMP	4
-#define ADIS16209_SCAN_INCLI_X	5
-#define ADIS16209_SCAN_INCLI_Y	6
-#define ADIS16209_SCAN_ROT	7
-
-#endif /* SPI_ADIS16209_H_ */
diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c
deleted file mode 100644
index d1dc1a3cb3ce..000000000000
--- a/drivers/staging/iio/accel/adis16209_core.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * ADIS16209 Programmable Digital Vibration Sensor driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#include "adis16209.h"
-
-static const u8 adis16209_addresses[8][1] = {
-	[ADIS16209_SCAN_SUPPLY] = { },
-	[ADIS16209_SCAN_AUX_ADC] = { },
-	[ADIS16209_SCAN_ACC_X] = { ADIS16209_XACCL_NULL },
-	[ADIS16209_SCAN_ACC_Y] = { ADIS16209_YACCL_NULL },
-	[ADIS16209_SCAN_INCLI_X] = { ADIS16209_XINCL_NULL },
-	[ADIS16209_SCAN_INCLI_Y] = { ADIS16209_YINCL_NULL },
-	[ADIS16209_SCAN_ROT] = { },
-	[ADIS16209_SCAN_TEMP] = { },
-};
-
-static int adis16209_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int bits;
-	s16 val16;
-	u8 addr;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBBIAS:
-		switch (chan->type) {
-		case IIO_ACCEL:
-		case IIO_INCLI:
-			bits = 14;
-			break;
-		default:
-			return -EINVAL;
-		}
-		val16 = val & ((1 << bits) - 1);
-		addr = adis16209_addresses[chan->scan_index][0];
-		return adis_write_reg_16(st, addr, val16);
-	}
-	return -EINVAL;
-}
-
-static int adis16209_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val, int *val2,
-			      long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int ret;
-	int bits;
-	u8 addr;
-	s16 val16;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		return adis_single_conversion(indio_dev, chan,
-			ADIS16209_ERROR_ACTIVE, val);
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			*val = 0;
-			if (chan->channel == 0)
-				*val2 = 305180; /* 0.30518 mV */
-			else
-				*val2 = 610500; /* 0.6105 mV */
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_TEMP:
-			*val = -470; /* -0.47 C */
-			*val2 = 0;
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_ACCEL:
-			*val = 0;
-			*val2 = IIO_G_TO_M_S_2(244140); /* 0.244140 mg */
-			return IIO_VAL_INT_PLUS_NANO;
-		case IIO_INCLI:
-		case IIO_ROT:
-			*val = 0;
-			*val2 = 25000; /* 0.025 degree */
-			return IIO_VAL_INT_PLUS_MICRO;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = 25000 / -470 - 0x4FE; /* 25 C = 0x4FE */
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		switch (chan->type) {
-		case IIO_ACCEL:
-			bits = 14;
-			break;
-		default:
-			return -EINVAL;
-		}
-		mutex_lock(&indio_dev->mlock);
-		addr = adis16209_addresses[chan->scan_index][0];
-		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-		val16 &= (1 << bits) - 1;
-		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
-		*val = val16;
-		mutex_unlock(&indio_dev->mlock);
-		return IIO_VAL_INT;
-	}
-	return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16209_channels[] = {
-	ADIS_SUPPLY_CHAN(ADIS16209_SUPPLY_OUT, ADIS16209_SCAN_SUPPLY, 0, 14),
-	ADIS_TEMP_CHAN(ADIS16209_TEMP_OUT, ADIS16209_SCAN_TEMP, 0, 12),
-	ADIS_ACCEL_CHAN(X, ADIS16209_XACCL_OUT, ADIS16209_SCAN_ACC_X,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
-	ADIS_ACCEL_CHAN(Y, ADIS16209_YACCL_OUT, ADIS16209_SCAN_ACC_Y,
-			BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14),
-	ADIS_AUX_ADC_CHAN(ADIS16209_AUX_ADC, ADIS16209_SCAN_AUX_ADC, 0, 12),
-	ADIS_INCLI_CHAN(X, ADIS16209_XINCL_OUT, ADIS16209_SCAN_INCLI_X,
-			0, 0, 14),
-	ADIS_INCLI_CHAN(Y, ADIS16209_YINCL_OUT, ADIS16209_SCAN_INCLI_Y,
-			0, 0, 14),
-	ADIS_ROT_CHAN(X, ADIS16209_ROT_OUT, ADIS16209_SCAN_ROT, 0, 0, 14),
-	IIO_CHAN_SOFT_TIMESTAMP(8)
-};
-
-static const struct iio_info adis16209_info = {
-	.read_raw = &adis16209_read_raw,
-	.write_raw = &adis16209_write_raw,
-	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
-};
-
-static const char * const adis16209_status_error_msgs[] = {
-	[ADIS16209_DIAG_STAT_SELFTEST_FAIL_BIT] = "Self test failure",
-	[ADIS16209_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
-	[ADIS16209_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
-	[ADIS16209_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
-	[ADIS16209_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
-};
-
-static const struct adis_data adis16209_data = {
-	.read_delay = 30,
-	.msc_ctrl_reg = ADIS16209_MSC_CTRL,
-	.glob_cmd_reg = ADIS16209_GLOB_CMD,
-	.diag_stat_reg = ADIS16209_DIAG_STAT,
-
-	.self_test_mask = ADIS16209_MSC_CTRL_SELF_TEST_EN,
-	.startup_delay = ADIS16209_STARTUP_DELAY,
-
-	.status_error_msgs = adis16209_status_error_msgs,
-	.status_error_mask = BIT(ADIS16209_DIAG_STAT_SELFTEST_FAIL_BIT) |
-		BIT(ADIS16209_DIAG_STAT_SPI_FAIL_BIT) |
-		BIT(ADIS16209_DIAG_STAT_FLASH_UPT_BIT) |
-		BIT(ADIS16209_DIAG_STAT_POWER_HIGH_BIT) |
-		BIT(ADIS16209_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16209_probe(struct spi_device *spi)
-{
-	int ret;
-	struct adis *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &adis16209_info;
-	indio_dev->channels = adis16209_channels;
-	indio_dev->num_channels = ARRAY_SIZE(adis16209_channels);
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = adis_init(st, indio_dev, spi, &adis16209_data);
-	if (ret)
-		return ret;
-	ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
-	if (ret)
-		return ret;
-
-	/* Get the device into a sane initial state */
-	ret = adis_initial_startup(st);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-	return ret;
-}
-
-static int adis16209_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-
-	return 0;
-}
-
-static struct spi_driver adis16209_driver = {
-	.driver = {
-		.name = "adis16209",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16209_probe,
-	.remove = adis16209_remove,
-};
-module_spi_driver(adis16209_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16209 Digital Vibration Sensor driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16209");
diff --git a/drivers/staging/iio/accel/adis16220.h b/drivers/staging/iio/accel/adis16220.h
deleted file mode 100644
index eab86331124f..000000000000
--- a/drivers/staging/iio/accel/adis16220.h
+++ /dev/null
@@ -1,140 +0,0 @@
-#ifndef SPI_ADIS16220_H_
-#define SPI_ADIS16220_H_
-
-#include <linux/iio/imu/adis.h>
-
-#define ADIS16220_STARTUP_DELAY	220 /* ms */
-
-/* Flash memory write count */
-#define ADIS16220_FLASH_CNT     0x00
-/* Control, acceleration offset adjustment control */
-#define ADIS16220_ACCL_NULL     0x02
-/* Control, AIN1 offset adjustment control */
-#define ADIS16220_AIN1_NULL     0x04
-/* Control, AIN2 offset adjustment control */
-#define ADIS16220_AIN2_NULL     0x06
-/* Output, power supply during capture */
-#define ADIS16220_CAPT_SUPPLY   0x0A
-/* Output, temperature during capture */
-#define ADIS16220_CAPT_TEMP     0x0C
-/* Output, peak acceleration during capture */
-#define ADIS16220_CAPT_PEAKA    0x0E
-/* Output, peak AIN1 level during capture */
-#define ADIS16220_CAPT_PEAK1    0x10
-/* Output, peak AIN2 level during capture */
-#define ADIS16220_CAPT_PEAK2    0x12
-/* Output, capture buffer for acceleration */
-#define ADIS16220_CAPT_BUFA     0x14
-/* Output, capture buffer for AIN1 */
-#define ADIS16220_CAPT_BUF1     0x16
-/* Output, capture buffer for AIN2 */
-#define ADIS16220_CAPT_BUF2     0x18
-/* Control, capture buffer address pointer */
-#define ADIS16220_CAPT_PNTR     0x1A
-/* Control, capture control register */
-#define ADIS16220_CAPT_CTRL     0x1C
-/* Control, capture period (automatic mode) */
-#define ADIS16220_CAPT_PRD      0x1E
-/* Control, Alarm A, acceleration peak threshold */
-#define ADIS16220_ALM_MAGA      0x20
-/* Control, Alarm 1, AIN1 peak threshold */
-#define ADIS16220_ALM_MAG1      0x22
-/* Control, Alarm 2, AIN2 peak threshold */
-#define ADIS16220_ALM_MAG2      0x24
-/* Control, Alarm S, peak threshold */
-#define ADIS16220_ALM_MAGS      0x26
-/* Control, alarm configuration register */
-#define ADIS16220_ALM_CTRL      0x28
-/* Control, general I/O configuration */
-#define ADIS16220_GPIO_CTRL     0x32
-/* Control, self-test control, AIN configuration */
-#define ADIS16220_MSC_CTRL      0x34
-/* Control, digital I/O configuration */
-#define ADIS16220_DIO_CTRL      0x36
-/* Control, filter configuration */
-#define ADIS16220_AVG_CNT       0x38
-/* Status, system status */
-#define ADIS16220_DIAG_STAT     0x3C
-/* Control, system commands */
-#define ADIS16220_GLOB_CMD      0x3E
-/* Status, self-test response */
-#define ADIS16220_ST_DELTA      0x40
-/* Lot Identification Code 1 */
-#define ADIS16220_LOT_ID1       0x52
-/* Lot Identification Code 2 */
-#define ADIS16220_LOT_ID2       0x54
-/* Product identifier; convert to decimal = 16220 */
-#define ADIS16220_PROD_ID       0x56
-/* Serial number */
-#define ADIS16220_SERIAL_NUM    0x58
-
-#define ADIS16220_CAPTURE_SIZE  2048
-
-/* MSC_CTRL */
-#define ADIS16220_MSC_CTRL_SELF_TEST_EN	        BIT(8)
-#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1	BIT(1)
-#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2	BIT(0)
-
-/* DIO_CTRL */
-#define ADIS16220_MSC_CTRL_DIO2_BUSY_IND     (BIT(5) | BIT(4))
-#define ADIS16220_MSC_CTRL_DIO1_BUSY_IND     (BIT(3) | BIT(2))
-#define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH     BIT(1)
-#define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH     BIT(0)
-
-/* DIAG_STAT */
-/* AIN2 sample > ALM_MAG2 */
-#define ADIS16220_DIAG_STAT_ALM_MAG2    BIT(14)
-/* AIN1 sample > ALM_MAG1 */
-#define ADIS16220_DIAG_STAT_ALM_MAG1    BIT(13)
-/* Acceleration sample > ALM_MAGA */
-#define ADIS16220_DIAG_STAT_ALM_MAGA    BIT(12)
-/* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */
-#define ADIS16220_DIAG_STAT_ALM_MAGS    BIT(11)
-/* |Peak value in AIN2 data capture| > ALM_MAG2 */
-#define ADIS16220_DIAG_STAT_PEAK_AIN2   BIT(10)
-/* |Peak value in AIN1 data capture| > ALM_MAG1 */
-#define ADIS16220_DIAG_STAT_PEAK_AIN1   BIT(9)
-/* |Peak value in acceleration data capture| > ALM_MAGA */
-#define ADIS16220_DIAG_STAT_PEAK_ACCEL  BIT(8)
-/* Data ready, capture complete */
-#define ADIS16220_DIAG_STAT_DATA_RDY    BIT(7)
-#define ADIS16220_DIAG_STAT_FLASH_CHK	BIT(6)
-#define ADIS16220_DIAG_STAT_SELF_TEST	BIT(5)
-/* Capture period violation/interruption */
-#define ADIS16220_DIAG_STAT_VIOLATION_BIT	4
-/* SPI communications failure */
-#define ADIS16220_DIAG_STAT_SPI_FAIL_BIT	3
-/* Flash update failure */
-#define ADIS16220_DIAG_STAT_FLASH_UPT_BIT	2
-/* Power supply above 3.625 V */
-#define ADIS16220_DIAG_STAT_POWER_HIGH_BIT	1
-/* Power supply below 3.15 V */
-#define ADIS16220_DIAG_STAT_POWER_LOW_BIT	0
-
-/* GLOB_CMD */
-#define ADIS16220_GLOB_CMD_SW_RESET	BIT(7)
-#define ADIS16220_GLOB_CMD_SELF_TEST	BIT(2)
-#define ADIS16220_GLOB_CMD_PWR_DOWN	BIT(1)
-
-#define ADIS16220_MAX_TX 2048
-#define ADIS16220_MAX_RX 2048
-
-#define ADIS16220_SPI_BURST	(u32)(1000 * 1000)
-#define ADIS16220_SPI_FAST	(u32)(2000 * 1000)
-
-/**
- * struct adis16220_state - device instance specific data
- * @adis:		adis device
- * @tx:			transmit buffer
- * @rx:			receive buffer
- * @buf_lock:		mutex to protect tx and rx
- **/
-struct adis16220_state {
-	struct adis adis;
-
-	struct mutex		buf_lock;
-	u8			tx[ADIS16220_MAX_TX] ____cacheline_aligned;
-	u8			rx[ADIS16220_MAX_RX];
-};
-
-#endif /* SPI_ADIS16220_H_ */
diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
deleted file mode 100644
index e46a91c69a31..000000000000
--- a/drivers/staging/iio/accel/adis16220_core.c
+++ /dev/null
@@ -1,495 +0,0 @@
-/*
- * ADIS16220 Programmable Digital Vibration Sensor driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-#include "adis16220.h"
-
-static ssize_t adis16220_read_16bit(struct device *dev,
-				    struct device_attribute *attr,
-				    char *buf)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct adis16220_state *st = iio_priv(indio_dev);
-	ssize_t ret;
-	u16 val;
-
-	/* Take the iio_dev status lock */
-	mutex_lock(&indio_dev->mlock);
-	ret = adis_read_reg_16(&st->adis, this_attr->address, &val);
-	mutex_unlock(&indio_dev->mlock);
-	if (ret)
-		return ret;
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t adis16220_write_16bit(struct device *dev,
-				     struct device_attribute *attr,
-				     const char *buf,
-				     size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct adis16220_state *st = iio_priv(indio_dev);
-	int ret;
-	u16 val;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = adis_write_reg_16(&st->adis, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static int adis16220_capture(struct iio_dev *indio_dev)
-{
-	struct adis16220_state *st = iio_priv(indio_dev);
-	int ret;
-
-	 /* initiates a manual data capture */
-	ret = adis_write_reg_16(&st->adis, ADIS16220_GLOB_CMD, 0xBF08);
-	if (ret)
-		dev_err(&indio_dev->dev, "problem beginning capture");
-
-	usleep_range(10000, 11000); /* delay for capture to finish */
-
-	return ret;
-}
-
-static ssize_t adis16220_write_capture(struct device *dev,
-				       struct device_attribute *attr,
-				       const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	bool val;
-	int ret;
-
-	ret = strtobool(buf, &val);
-	if (ret)
-		return ret;
-	if (!val)
-		return -EINVAL;
-	ret = adis16220_capture(indio_dev);
-	if (ret)
-		return ret;
-
-	return len;
-}
-
-static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
-					     char *buf,
-					     loff_t off,
-					     size_t count,
-					     int addr)
-{
-	struct adis16220_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 1,
-			.delay_usecs = 25,
-		}, {
-			.tx_buf = st->tx,
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.cs_change = 1,
-			.delay_usecs = 25,
-		},
-	};
-	int ret;
-	int i;
-
-	if (unlikely(!count))
-		return count;
-
-	if ((off >= ADIS16220_CAPTURE_SIZE) || (count & 1) || (off & 1))
-		return -EINVAL;
-
-	if (off + count > ADIS16220_CAPTURE_SIZE)
-		count = ADIS16220_CAPTURE_SIZE - off;
-
-	/* write the begin position of capture buffer */
-	ret = adis_write_reg_16(&st->adis,
-				ADIS16220_CAPT_PNTR,
-				off > 1);
-	if (ret)
-		return -EIO;
-
-	/* read count/2 values from capture buffer */
-	mutex_lock(&st->buf_lock);
-
-	for (i = 0; i < count; i += 2) {
-		st->tx[i] = ADIS_READ_REG(addr);
-		st->tx[i + 1] = 0;
-	}
-	xfers[1].len = count;
-
-	ret = spi_sync_transfer(st->adis.spi, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		mutex_unlock(&st->buf_lock);
-		return -EIO;
-	}
-
-	memcpy(buf, st->rx, count);
-
-	mutex_unlock(&st->buf_lock);
-	return count;
-}
-
-static ssize_t adis16220_accel_bin_read(struct file *filp, struct kobject *kobj,
-					struct bin_attribute *attr,
-					char *buf,
-					loff_t off,
-					size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
-
-	return adis16220_capture_buffer_read(indio_dev, buf,
-					off, count,
-					ADIS16220_CAPT_BUFA);
-}
-
-static struct bin_attribute accel_bin = {
-	.attr = {
-		.name = "accel_bin",
-		.mode = S_IRUGO,
-	},
-	.read = adis16220_accel_bin_read,
-	.size = ADIS16220_CAPTURE_SIZE,
-};
-
-static ssize_t adis16220_adc1_bin_read(struct file *filp, struct kobject *kobj,
-				       struct bin_attribute *attr,
-				       char *buf, loff_t off,
-				       size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
-
-	return adis16220_capture_buffer_read(indio_dev, buf,
-					off, count,
-					ADIS16220_CAPT_BUF1);
-}
-
-static struct bin_attribute adc1_bin = {
-	.attr = {
-		.name = "in0_bin",
-		.mode = S_IRUGO,
-	},
-	.read =  adis16220_adc1_bin_read,
-	.size = ADIS16220_CAPTURE_SIZE,
-};
-
-static ssize_t adis16220_adc2_bin_read(struct file *filp, struct kobject *kobj,
-				       struct bin_attribute *attr,
-				       char *buf, loff_t off,
-				       size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj));
-
-	return adis16220_capture_buffer_read(indio_dev, buf,
-					off, count,
-					ADIS16220_CAPT_BUF2);
-}
-
-static struct bin_attribute adc2_bin = {
-	.attr = {
-		.name = "in1_bin",
-		.mode = S_IRUGO,
-	},
-	.read =  adis16220_adc2_bin_read,
-	.size = ADIS16220_CAPTURE_SIZE,
-};
-
-#define IIO_DEV_ATTR_CAPTURE(_store)				\
-	IIO_DEVICE_ATTR(capture, S_IWUSR, NULL, _store, 0)
-
-static IIO_DEV_ATTR_CAPTURE(adis16220_write_capture);
-
-#define IIO_DEV_ATTR_CAPTURE_COUNT(_mode, _show, _store, _addr)		\
-	IIO_DEVICE_ATTR(capture_count, _mode, _show, _store, _addr)
-
-static IIO_DEV_ATTR_CAPTURE_COUNT(S_IWUSR | S_IRUGO,
-		adis16220_read_16bit,
-		adis16220_write_16bit,
-		ADIS16220_CAPT_PNTR);
-
-enum adis16220_channel {
-	in_supply, in_1, in_2, accel, temp
-};
-
-struct adis16220_address_spec {
-	u8 addr;
-	u8 bits;
-	bool sign;
-};
-
-/* Address / bits / signed */
-static const struct adis16220_address_spec adis16220_addresses[][3] = {
-	[in_supply] =	{ { ADIS16220_CAPT_SUPPLY,	12, 0 }, },
-	[in_1] =	{ { ADIS16220_CAPT_BUF1,	16, 1 },
-			  { ADIS16220_AIN1_NULL,	16, 1 },
-			  { ADIS16220_CAPT_PEAK1,	16, 1 }, },
-	[in_2] =	{ { ADIS16220_CAPT_BUF2,	16, 1 },
-			  { ADIS16220_AIN2_NULL,	16, 1 },
-			  { ADIS16220_CAPT_PEAK2,	16, 1 }, },
-	[accel] =	{ { ADIS16220_CAPT_BUFA,	16, 1 },
-			  { ADIS16220_ACCL_NULL,	16, 1 },
-			  { ADIS16220_CAPT_PEAKA,	16, 1 }, },
-	[temp] =	{ { ADIS16220_CAPT_TEMP,	12, 0 }, }
-};
-
-static int adis16220_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val, int *val2,
-			      long mask)
-{
-	struct adis16220_state *st = iio_priv(indio_dev);
-	const struct adis16220_address_spec *addr;
-	int ret = -EINVAL;
-	int addrind = 0;
-	u16 uval;
-	s16 sval;
-	u8 bits;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		addrind = 0;
-		break;
-	case IIO_CHAN_INFO_OFFSET:
-		if (chan->type == IIO_TEMP) {
-			*val = 25000 / -470 - 1278; /* 25 C = 1278 */
-			return IIO_VAL_INT;
-		}
-		addrind = 1;
-		break;
-	case IIO_CHAN_INFO_PEAK:
-		addrind = 2;
-		break;
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_TEMP:
-			*val = -470; /* -0.47 C */
-			*val2 = 0;
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_ACCEL:
-			*val2 = IIO_G_TO_M_S_2(19073); /* 19.073 g */
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_VOLTAGE:
-			if (chan->channel == 0) {
-				*val = 1;
-				*val2 = 220700; /* 1.2207 mV */
-			} else {
-				/* Should really be dependent on VDD */
-				*val2 = 305180; /* 305.18 uV */
-			}
-			return IIO_VAL_INT_PLUS_MICRO;
-		default:
-			return -EINVAL;
-		}
-	default:
-		return -EINVAL;
-	}
-	addr = &adis16220_addresses[chan->address][addrind];
-	if (addr->sign) {
-		ret = adis_read_reg_16(&st->adis, addr->addr, &sval);
-		if (ret)
-			return ret;
-		bits = addr->bits;
-		sval &= (1 << bits) - 1;
-		sval = (s16)(sval << (16 - bits)) >> (16 - bits);
-		*val = sval;
-		return IIO_VAL_INT;
-	}
-	ret = adis_read_reg_16(&st->adis, addr->addr, &uval);
-	if (ret)
-		return ret;
-	bits = addr->bits;
-	uval &= (1 << bits) - 1;
-	*val = uval;
-	return IIO_VAL_INT;
-}
-
-static const struct iio_chan_spec adis16220_channels[] = {
-	{
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 0,
-		.extend_name = "supply",
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_SCALE),
-		.address = in_supply,
-	}, {
-		.type = IIO_ACCEL,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_OFFSET) |
-			BIT(IIO_CHAN_INFO_SCALE) |
-			BIT(IIO_CHAN_INFO_PEAK),
-		.address = accel,
-	}, {
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_OFFSET) |
-			BIT(IIO_CHAN_INFO_SCALE),
-		.address = temp,
-	}, {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 1,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_OFFSET) |
-			BIT(IIO_CHAN_INFO_SCALE),
-		.address = in_1,
-	}, {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 2,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.address = in_2,
-	}
-};
-
-static struct attribute *adis16220_attributes[] = {
-	&iio_dev_attr_capture.dev_attr.attr,
-	&iio_dev_attr_capture_count.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group adis16220_attribute_group = {
-	.attrs = adis16220_attributes,
-};
-
-static const struct iio_info adis16220_info = {
-	.attrs = &adis16220_attribute_group,
-	.driver_module = THIS_MODULE,
-	.read_raw = &adis16220_read_raw,
-};
-
-static const char * const adis16220_status_error_msgs[] = {
-	[ADIS16220_DIAG_STAT_VIOLATION_BIT] = "Capture period violation/interruption",
-	[ADIS16220_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
-	[ADIS16220_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
-	[ADIS16220_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
-	[ADIS16220_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V",
-};
-
-static const struct adis_data adis16220_data = {
-	.read_delay = 35,
-	.write_delay = 35,
-	.msc_ctrl_reg = ADIS16220_MSC_CTRL,
-	.glob_cmd_reg = ADIS16220_GLOB_CMD,
-	.diag_stat_reg = ADIS16220_DIAG_STAT,
-
-	.self_test_mask = ADIS16220_MSC_CTRL_SELF_TEST_EN,
-	.startup_delay = ADIS16220_STARTUP_DELAY,
-
-	.status_error_msgs = adis16220_status_error_msgs,
-	.status_error_mask = BIT(ADIS16220_DIAG_STAT_VIOLATION_BIT) |
-		BIT(ADIS16220_DIAG_STAT_SPI_FAIL_BIT) |
-		BIT(ADIS16220_DIAG_STAT_FLASH_UPT_BIT) |
-		BIT(ADIS16220_DIAG_STAT_POWER_HIGH_BIT) |
-		BIT(ADIS16220_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16220_probe(struct spi_device *spi)
-{
-	int ret;
-	struct adis16220_state *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &adis16220_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = adis16220_channels;
-	indio_dev->num_channels = ARRAY_SIZE(adis16220_channels);
-
-	ret = devm_iio_device_register(&spi->dev, indio_dev);
-	if (ret)
-		return ret;
-
-	ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &accel_bin);
-	if (ret)
-		return ret;
-
-	ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc1_bin);
-	if (ret)
-		goto error_rm_accel_bin;
-
-	ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc2_bin);
-	if (ret)
-		goto error_rm_adc1_bin;
-
-	ret = adis_init(&st->adis, indio_dev, spi, &adis16220_data);
-	if (ret)
-		goto error_rm_adc2_bin;
-	/* Get the device into a sane initial state */
-	ret = adis_initial_startup(&st->adis);
-	if (ret)
-		goto error_rm_adc2_bin;
-	return 0;
-
-error_rm_adc2_bin:
-	sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin);
-error_rm_adc1_bin:
-	sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin);
-error_rm_accel_bin:
-	sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin);
-	return ret;
-}
-
-static int adis16220_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-
-	sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin);
-	sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin);
-	sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin);
-
-	return 0;
-}
-
-static struct spi_driver adis16220_driver = {
-	.driver = {
-		.name = "adis16220",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16220_probe,
-	.remove = adis16220_remove,
-};
-module_spi_driver(adis16220_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16220 Digital Vibration Sensor");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16220");
diff --git a/drivers/staging/iio/accel/adis16240.h b/drivers/staging/iio/accel/adis16240.h
deleted file mode 100644
index 66b5ad2f42c5..000000000000
--- a/drivers/staging/iio/accel/adis16240.h
+++ /dev/null
@@ -1,129 +0,0 @@
-#ifndef SPI_ADIS16240_H_
-#define SPI_ADIS16240_H_
-
-#define ADIS16240_STARTUP_DELAY	220 /* ms */
-
-/* Flash memory write count */
-#define ADIS16240_FLASH_CNT      0x00
-/* Output, power supply */
-#define ADIS16240_SUPPLY_OUT     0x02
-/* Output, x-axis accelerometer */
-#define ADIS16240_XACCL_OUT      0x04
-/* Output, y-axis accelerometer */
-#define ADIS16240_YACCL_OUT      0x06
-/* Output, z-axis accelerometer */
-#define ADIS16240_ZACCL_OUT      0x08
-/* Output, auxiliary ADC input */
-#define ADIS16240_AUX_ADC        0x0A
-/* Output, temperature */
-#define ADIS16240_TEMP_OUT       0x0C
-/* Output, x-axis acceleration peak */
-#define ADIS16240_XPEAK_OUT      0x0E
-/* Output, y-axis acceleration peak */
-#define ADIS16240_YPEAK_OUT      0x10
-/* Output, z-axis acceleration peak */
-#define ADIS16240_ZPEAK_OUT      0x12
-/* Output, sum-of-squares acceleration peak */
-#define ADIS16240_XYZPEAK_OUT    0x14
-/* Output, Capture Buffer 1, X and Y acceleration */
-#define ADIS16240_CAPT_BUF1      0x16
-/* Output, Capture Buffer 2, Z acceleration */
-#define ADIS16240_CAPT_BUF2      0x18
-/* Diagnostic, error flags */
-#define ADIS16240_DIAG_STAT      0x1A
-/* Diagnostic, event counter */
-#define ADIS16240_EVNT_CNTR      0x1C
-/* Diagnostic, check sum value from firmware test */
-#define ADIS16240_CHK_SUM        0x1E
-/* Calibration, x-axis acceleration offset adjustment */
-#define ADIS16240_XACCL_OFF      0x20
-/* Calibration, y-axis acceleration offset adjustment */
-#define ADIS16240_YACCL_OFF      0x22
-/* Calibration, z-axis acceleration offset adjustment */
-#define ADIS16240_ZACCL_OFF      0x24
-/* Clock, hour and minute */
-#define ADIS16240_CLK_TIME       0x2E
-/* Clock, month and day */
-#define ADIS16240_CLK_DATE       0x30
-/* Clock, year */
-#define ADIS16240_CLK_YEAR       0x32
-/* Wake-up setting, hour and minute */
-#define ADIS16240_WAKE_TIME      0x34
-/* Wake-up setting, month and day */
-#define ADIS16240_WAKE_DATE      0x36
-/* Alarm 1 amplitude threshold */
-#define ADIS16240_ALM_MAG1       0x38
-/* Alarm 2 amplitude threshold */
-#define ADIS16240_ALM_MAG2       0x3A
-/* Alarm control */
-#define ADIS16240_ALM_CTRL       0x3C
-/* Capture, external trigger control */
-#define ADIS16240_XTRIG_CTRL     0x3E
-/* Capture, address pointer */
-#define ADIS16240_CAPT_PNTR      0x40
-/* Capture, configuration and control */
-#define ADIS16240_CAPT_CTRL      0x42
-/* General-purpose digital input/output control */
-#define ADIS16240_GPIO_CTRL      0x44
-/* Miscellaneous control */
-#define ADIS16240_MSC_CTRL       0x46
-/* Internal sample period (rate) control */
-#define ADIS16240_SMPL_PRD       0x48
-/* System command */
-#define ADIS16240_GLOB_CMD       0x4A
-
-/* MSC_CTRL */
-/* Enables sum-of-squares output (XYZPEAK_OUT) */
-#define ADIS16240_MSC_CTRL_XYZPEAK_OUT_EN	BIT(15)
-/* Enables peak tracking output (XPEAK_OUT, YPEAK_OUT, and ZPEAK_OUT) */
-#define ADIS16240_MSC_CTRL_X_Y_ZPEAK_OUT_EN	BIT(14)
-/* Self-test enable: 1 = apply electrostatic force, 0 = disabled */
-#define ADIS16240_MSC_CTRL_SELF_TEST_EN	        BIT(8)
-/* Data-ready enable: 1 = enabled, 0 = disabled */
-#define ADIS16240_MSC_CTRL_DATA_RDY_EN	        BIT(2)
-/* Data-ready polarity: 1 = active high, 0 = active low */
-#define ADIS16240_MSC_CTRL_ACTIVE_HIGH	        BIT(1)
-/* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
-#define ADIS16240_MSC_CTRL_DATA_RDY_DIO2	BIT(0)
-
-/* DIAG_STAT */
-/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16240_DIAG_STAT_ALARM2      BIT(9)
-/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
-#define ADIS16240_DIAG_STAT_ALARM1      BIT(8)
-/* Capture buffer full: 1 = capture buffer is full */
-#define ADIS16240_DIAG_STAT_CPT_BUF_FUL BIT(7)
-/* Flash test, checksum flag: 1 = mismatch, 0 = match */
-#define ADIS16240_DIAG_STAT_CHKSUM      BIT(6)
-/* Power-on, self-test flag: 1 = failure, 0 = pass */
-#define ADIS16240_DIAG_STAT_PWRON_FAIL_BIT  5
-/* Power-on self-test: 1 = in-progress, 0 = complete */
-#define ADIS16240_DIAG_STAT_PWRON_BUSY  BIT(4)
-/* SPI communications failure */
-#define ADIS16240_DIAG_STAT_SPI_FAIL_BIT	3
-/* Flash update failure */
-#define ADIS16240_DIAG_STAT_FLASH_UPT_BIT	2
-/* Power supply above 3.625 V */
-#define ADIS16240_DIAG_STAT_POWER_HIGH_BIT	1
- /* Power supply below 3.15 V */
-#define ADIS16240_DIAG_STAT_POWER_LOW_BIT	0
-
-/* GLOB_CMD */
-#define ADIS16240_GLOB_CMD_RESUME	BIT(8)
-#define ADIS16240_GLOB_CMD_SW_RESET	BIT(7)
-#define ADIS16240_GLOB_CMD_STANDBY	BIT(2)
-
-#define ADIS16240_ERROR_ACTIVE          BIT(14)
-
-/* At the moment triggers are only used for ring buffer
- * filling. This may change!
- */
-
-#define ADIS16240_SCAN_ACC_X	0
-#define ADIS16240_SCAN_ACC_Y	1
-#define ADIS16240_SCAN_ACC_Z	2
-#define ADIS16240_SCAN_SUPPLY	3
-#define ADIS16240_SCAN_AUX_ADC	4
-#define ADIS16240_SCAN_TEMP	5
-
-#endif /* SPI_ADIS16240_H_ */
diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c
deleted file mode 100644
index cb074e864408..000000000000
--- a/drivers/staging/iio/accel/adis16240_core.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * ADIS16240 Programmable Impact Sensor and Recorder driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/imu/adis.h>
-
-#include "adis16240.h"
-
-static ssize_t adis16240_spi_read_signed(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf,
-					 unsigned bits)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct adis *st = iio_priv(indio_dev);
-	int ret;
-	s16 val = 0;
-	unsigned shift = 16 - bits;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = adis_read_reg_16(st,
-			       this_attr->address, (u16 *)&val);
-	if (ret)
-		return ret;
-
-	if (val & ADIS16240_ERROR_ACTIVE)
-		adis_check_status(st);
-
-	val = (s16)(val << shift) >> shift;
-	return sprintf(buf, "%d\n", val);
-}
-
-static ssize_t adis16240_read_12bit_signed(struct device *dev,
-					   struct device_attribute *attr,
-					   char *buf)
-{
-	ssize_t ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-
-	/* Take the iio_dev status lock */
-	mutex_lock(&indio_dev->mlock);
-	ret =  adis16240_spi_read_signed(dev, attr, buf, 12);
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret;
-}
-
-static IIO_DEVICE_ATTR(in_accel_xyz_squared_peak_raw, S_IRUGO,
-		       adis16240_read_12bit_signed, NULL,
-		       ADIS16240_XYZPEAK_OUT);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("4096");
-
-static const u8 adis16240_addresses[][2] = {
-	[ADIS16240_SCAN_ACC_X] = { ADIS16240_XACCL_OFF, ADIS16240_XPEAK_OUT },
-	[ADIS16240_SCAN_ACC_Y] = { ADIS16240_YACCL_OFF, ADIS16240_YPEAK_OUT },
-	[ADIS16240_SCAN_ACC_Z] = { ADIS16240_ZACCL_OFF, ADIS16240_ZPEAK_OUT },
-};
-
-static int adis16240_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val, int *val2,
-			      long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int ret;
-	int bits;
-	u8 addr;
-	s16 val16;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		return adis_single_conversion(indio_dev, chan,
-				ADIS16240_ERROR_ACTIVE, val);
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			if (chan->channel == 0) {
-				*val = 4;
-				*val2 = 880000; /* 4.88 mV */
-				return IIO_VAL_INT_PLUS_MICRO;
-			}
-			return -EINVAL;
-		case IIO_TEMP:
-			*val = 244; /* 0.244 C */
-			*val2 = 0;
-			return IIO_VAL_INT_PLUS_MICRO;
-		case IIO_ACCEL:
-			*val = 0;
-			*val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */
-			return IIO_VAL_INT_PLUS_MICRO;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_CHAN_INFO_PEAK_SCALE:
-		*val = 0;
-		*val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */
-		return IIO_VAL_INT_PLUS_MICRO;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = 25000 / 244 - 0x133; /* 25 C = 0x133 */
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		bits = 10;
-		mutex_lock(&indio_dev->mlock);
-		addr = adis16240_addresses[chan->scan_index][0];
-		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-		val16 &= (1 << bits) - 1;
-		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
-		*val = val16;
-		mutex_unlock(&indio_dev->mlock);
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_PEAK:
-		bits = 10;
-		mutex_lock(&indio_dev->mlock);
-		addr = adis16240_addresses[chan->scan_index][1];
-		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-		val16 &= (1 << bits) - 1;
-		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
-		*val = val16;
-		mutex_unlock(&indio_dev->mlock);
-		return IIO_VAL_INT;
-	}
-	return -EINVAL;
-}
-
-static int adis16240_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct adis *st = iio_priv(indio_dev);
-	int bits = 10;
-	s16 val16;
-	u8 addr;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBBIAS:
-		val16 = val & ((1 << bits) - 1);
-		addr = adis16240_addresses[chan->scan_index][0];
-		return adis_write_reg_16(st, addr, val16);
-	}
-	return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16240_channels[] = {
-	ADIS_SUPPLY_CHAN(ADIS16240_SUPPLY_OUT, ADIS16240_SCAN_SUPPLY, 0, 10),
-	ADIS_AUX_ADC_CHAN(ADIS16240_AUX_ADC, ADIS16240_SCAN_AUX_ADC, 0, 10),
-	ADIS_ACCEL_CHAN(X, ADIS16240_XACCL_OUT, ADIS16240_SCAN_ACC_X,
-			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
-			0, 10),
-	ADIS_ACCEL_CHAN(Y, ADIS16240_YACCL_OUT, ADIS16240_SCAN_ACC_Y,
-			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
-			0, 10),
-	ADIS_ACCEL_CHAN(Z, ADIS16240_ZACCL_OUT, ADIS16240_SCAN_ACC_Z,
-			BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK),
-			0, 10),
-	ADIS_TEMP_CHAN(ADIS16240_TEMP_OUT, ADIS16240_SCAN_TEMP, 0, 10),
-	IIO_CHAN_SOFT_TIMESTAMP(6)
-};
-
-static struct attribute *adis16240_attributes[] = {
-	&iio_dev_attr_in_accel_xyz_squared_peak_raw.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group adis16240_attribute_group = {
-	.attrs = adis16240_attributes,
-};
-
-static const struct iio_info adis16240_info = {
-	.attrs = &adis16240_attribute_group,
-	.read_raw = &adis16240_read_raw,
-	.write_raw = &adis16240_write_raw,
-	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
-};
-
-static const char * const adis16240_status_error_msgs[] = {
-	[ADIS16240_DIAG_STAT_PWRON_FAIL_BIT] = "Power on, self-test failed",
-	[ADIS16240_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure",
-	[ADIS16240_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed",
-	[ADIS16240_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V",
-	[ADIS16240_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 2.225V",
-};
-
-static const struct adis_data adis16240_data = {
-	.write_delay = 35,
-	.read_delay = 35,
-	.msc_ctrl_reg = ADIS16240_MSC_CTRL,
-	.glob_cmd_reg = ADIS16240_GLOB_CMD,
-	.diag_stat_reg = ADIS16240_DIAG_STAT,
-
-	.self_test_mask = ADIS16240_MSC_CTRL_SELF_TEST_EN,
-	.startup_delay = ADIS16240_STARTUP_DELAY,
-
-	.status_error_msgs = adis16240_status_error_msgs,
-	.status_error_mask = BIT(ADIS16240_DIAG_STAT_PWRON_FAIL_BIT) |
-		BIT(ADIS16240_DIAG_STAT_SPI_FAIL_BIT) |
-		BIT(ADIS16240_DIAG_STAT_FLASH_UPT_BIT) |
-		BIT(ADIS16240_DIAG_STAT_POWER_HIGH_BIT) |
-		BIT(ADIS16240_DIAG_STAT_POWER_LOW_BIT),
-};
-
-static int adis16240_probe(struct spi_device *spi)
-{
-	int ret;
-	struct adis *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &adis16240_info;
-	indio_dev->channels = adis16240_channels;
-	indio_dev->num_channels = ARRAY_SIZE(adis16240_channels);
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = adis_init(st, indio_dev, spi, &adis16240_data);
-	if (ret)
-		return ret;
-	ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL);
-	if (ret)
-		return ret;
-
-	/* Get the device into a sane initial state */
-	ret = adis_initial_startup(st);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer_trigger;
-	return 0;
-
-error_cleanup_buffer_trigger:
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-	return ret;
-}
-
-static int adis16240_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct adis *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	adis_cleanup_buffer_and_trigger(st, indio_dev);
-
-	return 0;
-}
-
-static struct spi_driver adis16240_driver = {
-	.driver = {
-		.name = "adis16240",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16240_probe,
-	.remove = adis16240_remove,
-};
-module_spi_driver(adis16240_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices Programmable Impact Sensor and Recorder");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:adis16240");
diff --git a/drivers/staging/iio/accel/lis3l02dq.h b/drivers/staging/iio/accel/lis3l02dq.h
deleted file mode 100644
index 3f24c629be6f..000000000000
--- a/drivers/staging/iio/accel/lis3l02dq.h
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * LISL02DQ.h -- support STMicroelectronics LISD02DQ
- *               3d 2g Linear Accelerometers via SPI
- *
- * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
- *
- * Loosely based upon tle62x0.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef SPI_LIS3L02DQ_H_
-#define SPI_LIS3L02DQ_H_
-#define LIS3L02DQ_READ_REG(a) ((a) | 0x80)
-#define LIS3L02DQ_WRITE_REG(a) a
-
-/* Calibration parameters */
-#define LIS3L02DQ_REG_OFFSET_X_ADDR		0x16
-#define LIS3L02DQ_REG_OFFSET_Y_ADDR		0x17
-#define LIS3L02DQ_REG_OFFSET_Z_ADDR		0x18
-
-#define LIS3L02DQ_REG_GAIN_X_ADDR		0x19
-#define LIS3L02DQ_REG_GAIN_Y_ADDR		0x1A
-#define LIS3L02DQ_REG_GAIN_Z_ADDR		0x1B
-
-/* Control Register (1 of 2) */
-#define LIS3L02DQ_REG_CTRL_1_ADDR		0x20
-/* Power ctrl - either bit set corresponds to on*/
-#define LIS3L02DQ_REG_CTRL_1_PD_ON		0xC0
-
-/* Decimation Factor  */
-#define LIS3L02DQ_DEC_MASK			0x30
-#define LIS3L02DQ_REG_CTRL_1_DF_128		0x00
-#define LIS3L02DQ_REG_CTRL_1_DF_64		0x10
-#define LIS3L02DQ_REG_CTRL_1_DF_32		0x20
-#define LIS3L02DQ_REG_CTRL_1_DF_8		(0x10 | 0x20)
-
-/* Self Test Enable */
-#define LIS3L02DQ_REG_CTRL_1_SELF_TEST_ON	0x08
-
-/* Axes enable ctrls */
-#define LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE	0x04
-#define LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE	0x02
-#define LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE	0x01
-
-/* Control Register (2 of 2) */
-#define LIS3L02DQ_REG_CTRL_2_ADDR		0x21
-
-/* Block Data Update only after MSB and LSB read */
-#define LIS3L02DQ_REG_CTRL_2_BLOCK_UPDATE	0x40
-
-/* Set to big endian output */
-#define LIS3L02DQ_REG_CTRL_2_BIG_ENDIAN		0x20
-
-/* Reboot memory content */
-#define LIS3L02DQ_REG_CTRL_2_REBOOT_MEMORY	0x10
-
-/* Interrupt Enable - applies data ready to the RDY pad */
-#define LIS3L02DQ_REG_CTRL_2_ENABLE_INTERRUPT	0x08
-
-/* Enable Data Ready Generation - relationship with previous unclear in docs */
-#define LIS3L02DQ_REG_CTRL_2_ENABLE_DATA_READY_GENERATION 0x04
-
-/* SPI 3 wire mode */
-#define LIS3L02DQ_REG_CTRL_2_THREE_WIRE_SPI_MODE	0x02
-
-/* Data alignment, default is 12 bit right justified
- * - option for 16 bit left justified */
-#define LIS3L02DQ_REG_CTRL_2_DATA_ALIGNMENT_16_BIT_LEFT_JUSTIFIED	0x01
-
-/* Interrupt related stuff */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_ADDR			0x23
-
-/* Switch from or combination of conditions to and */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_BOOLEAN_AND		0x80
-
-/* Latch interrupt request,
- * if on ack must be given by reading the ack register */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_LATCH_SRC		0x40
-
-/* Z Interrupt on High (above threshold) */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Z_HIGH	0x20
-/* Z Interrupt on Low */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Z_LOW	0x10
-/* Y Interrupt on High */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Y_HIGH	0x08
-/* Y Interrupt on Low */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_Y_LOW	0x04
-/* X Interrupt on High */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_X_HIGH	0x02
-/* X Interrupt on Low */
-#define LIS3L02DQ_REG_WAKE_UP_CFG_INTERRUPT_X_LOW 0x01
-
-/* Register that gives description of what caused interrupt
- * - latched if set in CFG_ADDRES */
-#define LIS3L02DQ_REG_WAKE_UP_SRC_ADDR			0x24
-/* top bit ignored */
-/* Interrupt Active */
-#define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_ACTIVATED	0x40
-/* Interupts that have been triggered */
-#define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_HIGH	0x20
-#define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_LOW	0x10
-#define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_HIGH	0x08
-#define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_LOW	0x04
-#define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_HIGH	0x02
-#define LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_LOW	0x01
-
-#define LIS3L02DQ_REG_WAKE_UP_ACK_ADDR			0x25
-
-/* Status register */
-#define LIS3L02DQ_REG_STATUS_ADDR			0x27
-/* XYZ axis data overrun - first is all overrun? */
-#define LIS3L02DQ_REG_STATUS_XYZ_OVERRUN		0x80
-#define LIS3L02DQ_REG_STATUS_Z_OVERRUN			0x40
-#define LIS3L02DQ_REG_STATUS_Y_OVERRUN			0x20
-#define LIS3L02DQ_REG_STATUS_X_OVERRUN			0x10
-/* XYZ new data available - first is all 3 available? */
-#define LIS3L02DQ_REG_STATUS_XYZ_NEW_DATA		0x08
-#define LIS3L02DQ_REG_STATUS_Z_NEW_DATA			0x04
-#define LIS3L02DQ_REG_STATUS_Y_NEW_DATA			0x02
-#define LIS3L02DQ_REG_STATUS_X_NEW_DATA			0x01
-
-/* The accelerometer readings - low and high bytes.
- * Form of high byte dependent on justification set in ctrl reg */
-#define LIS3L02DQ_REG_OUT_X_L_ADDR			0x28
-#define LIS3L02DQ_REG_OUT_X_H_ADDR			0x29
-#define LIS3L02DQ_REG_OUT_Y_L_ADDR			0x2A
-#define LIS3L02DQ_REG_OUT_Y_H_ADDR			0x2B
-#define LIS3L02DQ_REG_OUT_Z_L_ADDR			0x2C
-#define LIS3L02DQ_REG_OUT_Z_H_ADDR			0x2D
-
-/* Threshold values for all axes and both above and below thresholds
- * - i.e. there is only one value */
-#define LIS3L02DQ_REG_THS_L_ADDR			0x2E
-#define LIS3L02DQ_REG_THS_H_ADDR			0x2F
-
-#define LIS3L02DQ_DEFAULT_CTRL1 (LIS3L02DQ_REG_CTRL_1_PD_ON	      \
-				 | LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE \
-				 | LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE \
-				 | LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE \
-				 | LIS3L02DQ_REG_CTRL_1_DF_128)
-
-#define LIS3L02DQ_DEFAULT_CTRL2	0
-
-#define LIS3L02DQ_MAX_TX 12
-#define LIS3L02DQ_MAX_RX 12
-/**
- * struct lis3l02dq_state - device instance specific data
- * @us:			actual spi_device
- * @trig:		data ready trigger registered with iio
- * @buf_lock:		mutex to protect tx and rx
- * @tx:			transmit buffer
- * @rx:			receive buffer
- **/
-struct lis3l02dq_state {
-	struct spi_device		*us;
-	struct iio_trigger		*trig;
-	struct mutex			buf_lock;
-	int				gpio;
-	bool				trigger_on;
-
-	u8	tx[LIS3L02DQ_MAX_RX] ____cacheline_aligned;
-	u8	rx[LIS3L02DQ_MAX_RX] ____cacheline_aligned;
-};
-
-int lis3l02dq_spi_read_reg_8(struct iio_dev *indio_dev,
-			     u8 reg_address,
-			     u8 *val);
-
-int lis3l02dq_spi_write_reg_8(struct iio_dev *indio_dev,
-			      u8 reg_address,
-			      u8 val);
-
-int lis3l02dq_disable_all_events(struct iio_dev *indio_dev);
-
-#ifdef CONFIG_IIO_BUFFER
-/* At the moment triggers are only used for buffer
- * filling. This may change!
- */
-void lis3l02dq_remove_trigger(struct iio_dev *indio_dev);
-int lis3l02dq_probe_trigger(struct iio_dev *indio_dev);
-
-int lis3l02dq_configure_buffer(struct iio_dev *indio_dev);
-void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev);
-
-irqreturn_t lis3l02dq_data_rdy_trig_poll(int irq, void *private);
-#define lis3l02dq_th lis3l02dq_data_rdy_trig_poll
-
-#else /* CONFIG_IIO_BUFFER */
-#define lis3l02dq_th lis3l02dq_nobuffer
-
-static inline void lis3l02dq_remove_trigger(struct iio_dev *indio_dev)
-{
-}
-
-static inline int lis3l02dq_probe_trigger(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-static int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-static inline void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev)
-{
-}
-#endif /* CONFIG_IIO_BUFFER */
-#endif /* SPI_LIS3L02DQ_H_ */
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
deleted file mode 100644
index ebcab56c81b9..000000000000
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ /dev/null
@@ -1,813 +0,0 @@
-/*
- * lis3l02dq.c	support STMicroelectronics LISD02DQ
- *		3d 2g Linear Accelerometers via SPI
- *
- * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Settings:
- * 16 bit left justified mode used.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-#include <linux/iio/buffer.h>
-
-#include "lis3l02dq.h"
-
-/* At the moment the spi framework doesn't allow global setting of cs_change.
- * It's in the likely to be added comment at the top of spi.h.
- * This means that use cannot be made of spi_write etc.
- */
-/* direct copy of the irq_default_primary_handler */
-#ifndef CONFIG_IIO_BUFFER
-static irqreturn_t lis3l02dq_nobuffer(int irq, void *private)
-{
-	return IRQ_WAKE_THREAD;
-}
-#endif
-
-/**
- * lis3l02dq_spi_read_reg_8() - read single byte from a single register
- * @indio_dev: iio_dev for this actual device
- * @reg_address: the address of the register to be read
- * @val: pass back the resulting value
- **/
-int lis3l02dq_spi_read_reg_8(struct iio_dev *indio_dev,
-			     u8 reg_address, u8 *val)
-{
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfer = {
-		.tx_buf = st->tx,
-		.rx_buf = st->rx,
-		.bits_per_word = 8,
-		.len = 2,
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = LIS3L02DQ_READ_REG(reg_address);
-	st->tx[1] = 0;
-
-	ret = spi_sync_transfer(st->us, &xfer, 1);
-	*val = st->rx[1];
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-/**
- * lis3l02dq_spi_write_reg_8() - write single byte to a register
- * @indio_dev: iio_dev for this device
- * @reg_address: the address of the register to be written
- * @val: the value to write
- **/
-int lis3l02dq_spi_write_reg_8(struct iio_dev *indio_dev,
-			      u8 reg_address,
-			      u8 val)
-{
-	int ret;
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = LIS3L02DQ_WRITE_REG(reg_address);
-	st->tx[1] = val;
-	ret = spi_write(st->us, st->tx, 2);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-/**
- * lisl302dq_spi_write_reg_s16() - write 2 bytes to a pair of registers
- * @indio_dev: iio_dev for this device
- * @lower_reg_address: the address of the lower of the two registers.
- *               Second register is assumed to have address one greater.
- * @value: value to be written
- **/
-static int lis3l02dq_spi_write_reg_s16(struct iio_dev *indio_dev,
-				       u8 lower_reg_address,
-				       s16 value)
-{
-	int ret;
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfers[] = { {
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 1,
-		}, {
-			.tx_buf = st->tx + 2,
-			.bits_per_word = 8,
-			.len = 2,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = LIS3L02DQ_WRITE_REG(lower_reg_address);
-	st->tx[1] = value & 0xFF;
-	st->tx[2] = LIS3L02DQ_WRITE_REG(lower_reg_address + 1);
-	st->tx[3] = (value >> 8) & 0xFF;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int lis3l02dq_read_reg_s16(struct iio_dev *indio_dev,
-				  u8 lower_reg_address,
-				  int *val)
-{
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	int ret;
-	s16 tempval;
-	struct spi_transfer xfers[] = { {
-			.tx_buf = st->tx,
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 2,
-			.cs_change = 1,
-		}, {
-			.tx_buf = st->tx + 2,
-			.rx_buf = st->rx + 2,
-			.bits_per_word = 8,
-			.len = 2,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = LIS3L02DQ_READ_REG(lower_reg_address);
-	st->tx[1] = 0;
-	st->tx[2] = LIS3L02DQ_READ_REG(lower_reg_address + 1);
-	st->tx[3] = 0;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->us->dev, "problem when reading 16 bit register");
-		goto error_ret;
-	}
-	tempval = (s16)(st->rx[1]) | ((s16)(st->rx[3]) << 8);
-
-	*val = tempval;
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-enum lis3l02dq_rm_ind {
-	LIS3L02DQ_ACCEL,
-	LIS3L02DQ_GAIN,
-	LIS3L02DQ_BIAS,
-};
-
-static u8 lis3l02dq_axis_map[3][3] = {
-	[LIS3L02DQ_ACCEL] = { LIS3L02DQ_REG_OUT_X_L_ADDR,
-			      LIS3L02DQ_REG_OUT_Y_L_ADDR,
-			      LIS3L02DQ_REG_OUT_Z_L_ADDR },
-	[LIS3L02DQ_GAIN] = { LIS3L02DQ_REG_GAIN_X_ADDR,
-			     LIS3L02DQ_REG_GAIN_Y_ADDR,
-			     LIS3L02DQ_REG_GAIN_Z_ADDR },
-	[LIS3L02DQ_BIAS] = { LIS3L02DQ_REG_OFFSET_X_ADDR,
-			     LIS3L02DQ_REG_OFFSET_Y_ADDR,
-			     LIS3L02DQ_REG_OFFSET_Z_ADDR }
-};
-
-static int lis3l02dq_read_thresh(struct iio_dev *indio_dev,
-				 const struct iio_chan_spec *chan,
-				 enum iio_event_type type,
-				 enum iio_event_direction dir,
-				 enum iio_event_info info,
-				 int *val, int *val2)
-{
-	int ret;
-
-	ret = lis3l02dq_read_reg_s16(indio_dev, LIS3L02DQ_REG_THS_L_ADDR, val);
-	if (ret)
-		return ret;
-	return IIO_VAL_INT;
-}
-
-static int lis3l02dq_write_thresh(struct iio_dev *indio_dev,
-				  const struct iio_chan_spec *chan,
-				  enum iio_event_type type,
-				  enum iio_event_direction dir,
-				  enum iio_event_info info,
-				  int val, int val2)
-{
-	u16 value = val;
-
-	return lis3l02dq_spi_write_reg_s16(indio_dev,
-					   LIS3L02DQ_REG_THS_L_ADDR,
-					   value);
-}
-
-static int lis3l02dq_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	int ret = -EINVAL, reg;
-	u8 uval;
-	s8 sval;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBBIAS:
-		if (val > 255 || val < -256)
-			return -EINVAL;
-		sval = val;
-		reg = lis3l02dq_axis_map[LIS3L02DQ_BIAS][chan->address];
-		ret = lis3l02dq_spi_write_reg_8(indio_dev, reg, sval);
-		break;
-	case IIO_CHAN_INFO_CALIBSCALE:
-		if (val & ~0xFF)
-			return -EINVAL;
-		uval = val;
-		reg = lis3l02dq_axis_map[LIS3L02DQ_GAIN][chan->address];
-		ret = lis3l02dq_spi_write_reg_8(indio_dev, reg, uval);
-		break;
-	}
-	return ret;
-}
-
-static int lis3l02dq_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val,
-			      int *val2,
-			      long mask)
-{
-	u8 utemp;
-	s8 stemp;
-	ssize_t ret = 0;
-	u8 reg;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		/* Take the iio_dev status lock */
-		mutex_lock(&indio_dev->mlock);
-		if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) {
-			ret = -EBUSY;
-		} else {
-			reg = lis3l02dq_axis_map
-				[LIS3L02DQ_ACCEL][chan->address];
-			ret = lis3l02dq_read_reg_s16(indio_dev, reg, val);
-		}
-		mutex_unlock(&indio_dev->mlock);
-		if (ret < 0)
-			goto error_ret;
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = 9580;
-		return IIO_VAL_INT_PLUS_MICRO;
-	case IIO_CHAN_INFO_CALIBSCALE:
-		reg = lis3l02dq_axis_map[LIS3L02DQ_GAIN][chan->address];
-		ret = lis3l02dq_spi_read_reg_8(indio_dev, reg, &utemp);
-		if (ret)
-			goto error_ret;
-		/* to match with what previous code does */
-		*val = utemp;
-		return IIO_VAL_INT;
-
-	case IIO_CHAN_INFO_CALIBBIAS:
-		reg = lis3l02dq_axis_map[LIS3L02DQ_BIAS][chan->address];
-		ret = lis3l02dq_spi_read_reg_8(indio_dev, reg, (u8 *)&stemp);
-		/* to match with what previous code does */
-		*val = stemp;
-		return IIO_VAL_INT;
-	}
-error_ret:
-	return ret;
-}
-
-static ssize_t lis3l02dq_read_frequency(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	int ret, len = 0;
-	s8 t;
-
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_1_ADDR,
-				       (u8 *)&t);
-	if (ret)
-		return ret;
-	t &= LIS3L02DQ_DEC_MASK;
-	switch (t) {
-	case LIS3L02DQ_REG_CTRL_1_DF_128:
-		len = sprintf(buf, "280\n");
-		break;
-	case LIS3L02DQ_REG_CTRL_1_DF_64:
-		len = sprintf(buf, "560\n");
-		break;
-	case LIS3L02DQ_REG_CTRL_1_DF_32:
-		len = sprintf(buf, "1120\n");
-		break;
-	case LIS3L02DQ_REG_CTRL_1_DF_8:
-		len = sprintf(buf, "4480\n");
-		break;
-	}
-	return len;
-}
-
-static ssize_t lis3l02dq_write_frequency(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	unsigned long val;
-	int ret;
-	u8 t;
-
-	ret = kstrtoul(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	mutex_lock(&indio_dev->mlock);
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_1_ADDR,
-				       &t);
-	if (ret)
-		goto error_ret_mutex;
-	/* Wipe the bits clean */
-	t &= ~LIS3L02DQ_DEC_MASK;
-	switch (val) {
-	case 280:
-		t |= LIS3L02DQ_REG_CTRL_1_DF_128;
-		break;
-	case 560:
-		t |= LIS3L02DQ_REG_CTRL_1_DF_64;
-		break;
-	case 1120:
-		t |= LIS3L02DQ_REG_CTRL_1_DF_32;
-		break;
-	case 4480:
-		t |= LIS3L02DQ_REG_CTRL_1_DF_8;
-		break;
-	default:
-		ret = -EINVAL;
-		goto error_ret_mutex;
-	}
-
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_1_ADDR,
-					t);
-
-error_ret_mutex:
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static int lis3l02dq_initial_setup(struct iio_dev *indio_dev)
-{
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	int ret;
-	u8 val, valtest;
-
-	st->us->mode = SPI_MODE_3;
-
-	spi_setup(st->us);
-
-	val = LIS3L02DQ_DEFAULT_CTRL1;
-	/* Write suitable defaults to ctrl1 */
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_1_ADDR,
-					val);
-	if (ret) {
-		dev_err(&st->us->dev, "problem with setup control register 1");
-		goto err_ret;
-	}
-	/* Repeat as sometimes doesn't work first time? */
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_1_ADDR,
-					val);
-	if (ret) {
-		dev_err(&st->us->dev, "problem with setup control register 1");
-		goto err_ret;
-	}
-
-	/* Read back to check this has worked acts as loose test of correct
-	 * chip */
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_1_ADDR,
-				       &valtest);
-	if (ret || (valtest != val)) {
-		dev_err(&indio_dev->dev,
-			"device not playing ball %d %d\n", valtest, val);
-		ret = -EINVAL;
-		goto err_ret;
-	}
-
-	val = LIS3L02DQ_DEFAULT_CTRL2;
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_2_ADDR,
-					val);
-	if (ret) {
-		dev_err(&st->us->dev, "problem with setup control register 2");
-		goto err_ret;
-	}
-
-	val = LIS3L02DQ_REG_WAKE_UP_CFG_LATCH_SRC;
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_WAKE_UP_CFG_ADDR,
-					val);
-	if (ret)
-		dev_err(&st->us->dev, "problem with interrupt cfg register");
-err_ret:
-
-	return ret;
-}
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-			      lis3l02dq_read_frequency,
-			      lis3l02dq_write_frequency);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("280 560 1120 4480");
-
-static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
-{
-	struct iio_dev *indio_dev = private;
-	u8 t;
-
-	s64 timestamp = iio_get_time_ns();
-
-	lis3l02dq_spi_read_reg_8(indio_dev,
-				 LIS3L02DQ_REG_WAKE_UP_SRC_ADDR,
-				 &t);
-
-	if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_HIGH)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_Z,
-						  IIO_EV_TYPE_THRESH,
-						  IIO_EV_DIR_RISING),
-			       timestamp);
-
-	if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Z_LOW)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_Z,
-						  IIO_EV_TYPE_THRESH,
-						  IIO_EV_DIR_FALLING),
-			       timestamp);
-
-	if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_HIGH)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_Y,
-						  IIO_EV_TYPE_THRESH,
-						  IIO_EV_DIR_RISING),
-			       timestamp);
-
-	if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_Y_LOW)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_Y,
-						  IIO_EV_TYPE_THRESH,
-						  IIO_EV_DIR_FALLING),
-			       timestamp);
-
-	if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_HIGH)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_X,
-						  IIO_EV_TYPE_THRESH,
-						  IIO_EV_DIR_RISING),
-			       timestamp);
-
-	if (t & LIS3L02DQ_REG_WAKE_UP_SRC_INTERRUPT_X_LOW)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_X,
-						  IIO_EV_TYPE_THRESH,
-						  IIO_EV_DIR_FALLING),
-			       timestamp);
-
-	/* Ack and allow for new interrupts */
-	lis3l02dq_spi_read_reg_8(indio_dev,
-				 LIS3L02DQ_REG_WAKE_UP_ACK_ADDR,
-				 &t);
-
-	return IRQ_HANDLED;
-}
-
-static const struct iio_event_spec lis3l02dq_event[] = {
-	{
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_ENABLE),
-		.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE),
-	}, {
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_ENABLE),
-		.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE),
-	}
-};
-
-#define LIS3L02DQ_CHAN(index, mod)				\
-	{							\
-		.type = IIO_ACCEL,				\
-		.modified = 1,					\
-		.channel2 = mod,				\
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |	\
-			BIT(IIO_CHAN_INFO_CALIBSCALE) |		\
-			BIT(IIO_CHAN_INFO_CALIBBIAS),		\
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
-		.address = index,				\
-		.scan_index = index,				\
-		.scan_type = {					\
-			.sign = 's',				\
-			.realbits = 12,				\
-			.storagebits = 16,			\
-		},						\
-		.event_spec = lis3l02dq_event,			\
-		.num_event_specs = ARRAY_SIZE(lis3l02dq_event),	\
-	 }
-
-static const struct iio_chan_spec lis3l02dq_channels[] = {
-	LIS3L02DQ_CHAN(0, IIO_MOD_X),
-	LIS3L02DQ_CHAN(1, IIO_MOD_Y),
-	LIS3L02DQ_CHAN(2, IIO_MOD_Z),
-	IIO_CHAN_SOFT_TIMESTAMP(3)
-};
-
-static int lis3l02dq_read_event_config(struct iio_dev *indio_dev,
-				       const struct iio_chan_spec *chan,
-				       enum iio_event_type type,
-				       enum iio_event_direction dir)
-{
-	u8 val;
-	int ret;
-	u8 mask = (1 << (chan->channel2*2 + (dir == IIO_EV_DIR_RISING)));
-
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_WAKE_UP_CFG_ADDR,
-				       &val);
-	if (ret < 0)
-		return ret;
-
-	return !!(val & mask);
-}
-
-int lis3l02dq_disable_all_events(struct iio_dev *indio_dev)
-{
-	int ret;
-	u8 control, val;
-
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_2_ADDR,
-				       &control);
-
-	control &= ~LIS3L02DQ_REG_CTRL_2_ENABLE_INTERRUPT;
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_2_ADDR,
-					control);
-	if (ret)
-		goto error_ret;
-	/* Also for consistency clear the mask */
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_WAKE_UP_CFG_ADDR,
-				       &val);
-	if (ret)
-		goto error_ret;
-	val &= ~0x3f;
-
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_WAKE_UP_CFG_ADDR,
-					val);
-	if (ret)
-		goto error_ret;
-
-	ret = control;
-error_ret:
-	return ret;
-}
-
-static int lis3l02dq_write_event_config(struct iio_dev *indio_dev,
-					const struct iio_chan_spec *chan,
-					enum iio_event_type type,
-					enum iio_event_direction dir,
-					int state)
-{
-	int ret = 0;
-	u8 val, control;
-	u8 currentlyset;
-	bool changed = false;
-	u8 mask = (1 << (chan->channel2*2 + (dir == IIO_EV_DIR_RISING)));
-
-	mutex_lock(&indio_dev->mlock);
-	/* read current control */
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_2_ADDR,
-				       &control);
-	if (ret)
-		goto error_ret;
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_WAKE_UP_CFG_ADDR,
-				       &val);
-	if (ret < 0)
-		goto error_ret;
-	currentlyset = val & mask;
-
-	if (!currentlyset && state) {
-		changed = true;
-		val |= mask;
-	} else if (currentlyset && !state) {
-		changed = true;
-		val &= ~mask;
-	}
-
-	if (changed) {
-		ret = lis3l02dq_spi_write_reg_8(indio_dev,
-						LIS3L02DQ_REG_WAKE_UP_CFG_ADDR,
-						val);
-		if (ret)
-			goto error_ret;
-		control = val & 0x3f ?
-			(control | LIS3L02DQ_REG_CTRL_2_ENABLE_INTERRUPT) :
-			(control & ~LIS3L02DQ_REG_CTRL_2_ENABLE_INTERRUPT);
-		ret = lis3l02dq_spi_write_reg_8(indio_dev,
-						LIS3L02DQ_REG_CTRL_2_ADDR,
-						control);
-		if (ret)
-			goto error_ret;
-	}
-
-error_ret:
-	mutex_unlock(&indio_dev->mlock);
-	return ret;
-}
-
-static struct attribute *lis3l02dq_attributes[] = {
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group lis3l02dq_attribute_group = {
-	.attrs = lis3l02dq_attributes,
-};
-
-static const struct iio_info lis3l02dq_info = {
-	.read_raw = &lis3l02dq_read_raw,
-	.write_raw = &lis3l02dq_write_raw,
-	.read_event_value = &lis3l02dq_read_thresh,
-	.write_event_value = &lis3l02dq_write_thresh,
-	.write_event_config = &lis3l02dq_write_event_config,
-	.read_event_config = &lis3l02dq_read_event_config,
-	.driver_module = THIS_MODULE,
-	.attrs = &lis3l02dq_attribute_group,
-};
-
-static int lis3l02dq_probe(struct spi_device *spi)
-{
-	int ret;
-	struct lis3l02dq_state *st;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	st->us = spi;
-	st->gpio = of_get_gpio(spi->dev.of_node, 0);
-	mutex_init(&st->buf_lock);
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &lis3l02dq_info;
-	indio_dev->channels = lis3l02dq_channels;
-	indio_dev->num_channels = ARRAY_SIZE(lis3l02dq_channels);
-
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = lis3l02dq_configure_buffer(indio_dev);
-	if (ret)
-		return ret;
-
-	if (spi->irq) {
-		ret = request_threaded_irq(st->us->irq,
-					   &lis3l02dq_th,
-					   &lis3l02dq_event_handler,
-					   IRQF_TRIGGER_RISING,
-					   "lis3l02dq",
-					   indio_dev);
-		if (ret)
-			goto error_unreg_buffer_funcs;
-
-		ret = lis3l02dq_probe_trigger(indio_dev);
-		if (ret)
-			goto error_free_interrupt;
-	}
-
-	/* Get the device into a sane initial state */
-	ret = lis3l02dq_initial_setup(indio_dev);
-	if (ret)
-		goto error_remove_trigger;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_remove_trigger;
-
-	return 0;
-
-error_remove_trigger:
-	if (spi->irq)
-		lis3l02dq_remove_trigger(indio_dev);
-error_free_interrupt:
-	if (spi->irq)
-		free_irq(st->us->irq, indio_dev);
-error_unreg_buffer_funcs:
-	lis3l02dq_unconfigure_buffer(indio_dev);
-	return ret;
-}
-
-/* Power down the device */
-static int lis3l02dq_stop_device(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	u8 val = 0;
-
-	mutex_lock(&indio_dev->mlock);
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_1_ADDR,
-					val);
-	if (ret) {
-		dev_err(&st->us->dev, "problem with turning device off: ctrl1");
-		goto err_ret;
-	}
-
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_2_ADDR,
-					val);
-	if (ret)
-		dev_err(&st->us->dev, "problem with turning device off: ctrl2");
-err_ret:
-	mutex_unlock(&indio_dev->mlock);
-	return ret;
-}
-
-/* fixme, confirm ordering in this function */
-static int lis3l02dq_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-
-	lis3l02dq_disable_all_events(indio_dev);
-	lis3l02dq_stop_device(indio_dev);
-
-	if (spi->irq)
-		free_irq(st->us->irq, indio_dev);
-
-	lis3l02dq_remove_trigger(indio_dev);
-	lis3l02dq_unconfigure_buffer(indio_dev);
-
-	return 0;
-}
-
-static struct spi_driver lis3l02dq_driver = {
-	.driver = {
-		.name = "lis3l02dq",
-		.owner = THIS_MODULE,
-	},
-	.probe = lis3l02dq_probe,
-	.remove = lis3l02dq_remove,
-};
-module_spi_driver(lis3l02dq_driver);
-
-MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
-MODULE_DESCRIPTION("ST LIS3L02DQ Accelerometer SPI driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:lis3l02dq");
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
deleted file mode 100644
index b892f2cf5f9e..000000000000
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ /dev/null
@@ -1,426 +0,0 @@
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/mutex.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/kfifo_buf.h>
-#include <linux/iio/trigger.h>
-#include <linux/iio/trigger_consumer.h>
-#include "lis3l02dq.h"
-
-/**
- * combine_8_to_16() utility function to munge two u8s into u16
- **/
-static inline u16 combine_8_to_16(u8 lower, u8 upper)
-{
-	u16 _lower = lower;
-	u16 _upper = upper;
-
-	return _lower | (_upper << 8);
-}
-
-/**
- * lis3l02dq_data_rdy_trig_poll() the event handler for the data rdy trig
- **/
-irqreturn_t lis3l02dq_data_rdy_trig_poll(int irq, void *private)
-{
-	struct iio_dev *indio_dev = private;
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-
-	if (st->trigger_on) {
-		iio_trigger_poll(st->trig);
-		return IRQ_HANDLED;
-	}
-
-	return IRQ_WAKE_THREAD;
-}
-
-static const u8 read_all_tx_array[] = {
-	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_X_L_ADDR), 0,
-	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_X_H_ADDR), 0,
-	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_Y_L_ADDR), 0,
-	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_Y_H_ADDR), 0,
-	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_Z_L_ADDR), 0,
-	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_Z_H_ADDR), 0,
-};
-
-/**
- * lis3l02dq_read_all() Reads all channels currently selected
- * @indio_dev:	IIO device state
- * @rx_array:	(dma capable) receive array, must be at least
- *		4*number of channels
- **/
-static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
-{
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	struct spi_transfer *xfers;
-	struct spi_message msg;
-	int ret, i, j = 0;
-
-	xfers = kcalloc(bitmap_weight(indio_dev->active_scan_mask,
-				      indio_dev->masklength) * 2,
-			sizeof(*xfers), GFP_KERNEL);
-	if (!xfers)
-		return -ENOMEM;
-
-	mutex_lock(&st->buf_lock);
-
-	for (i = 0; i < ARRAY_SIZE(read_all_tx_array)/4; i++)
-		if (test_bit(i, indio_dev->active_scan_mask)) {
-			/* lower byte */
-			xfers[j].tx_buf = st->tx + 2*j;
-			st->tx[2*j] = read_all_tx_array[i*4];
-			st->tx[2*j + 1] = 0;
-			if (rx_array)
-				xfers[j].rx_buf = rx_array + j*2;
-			xfers[j].bits_per_word = 8;
-			xfers[j].len = 2;
-			xfers[j].cs_change = 1;
-			j++;
-
-			/* upper byte */
-			xfers[j].tx_buf = st->tx + 2*j;
-			st->tx[2*j] = read_all_tx_array[i*4 + 2];
-			st->tx[2*j + 1] = 0;
-			if (rx_array)
-				xfers[j].rx_buf = rx_array + j*2;
-			xfers[j].bits_per_word = 8;
-			xfers[j].len = 2;
-			xfers[j].cs_change = 1;
-			j++;
-		}
-
-	/* After these are transmitted, the rx_buff should have
-	 * values in alternate bytes
-	 */
-	spi_message_init(&msg);
-	for (j = 0; j < bitmap_weight(indio_dev->active_scan_mask,
-				      indio_dev->masklength) * 2; j++)
-		spi_message_add_tail(&xfers[j], &msg);
-
-	ret = spi_sync(st->us, &msg);
-	mutex_unlock(&st->buf_lock);
-	kfree(xfers);
-
-	return ret;
-}
-
-static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
-					u8 *buf)
-{
-	int ret, i;
-	u8 *rx_array;
-	s16 *data = (s16 *)buf;
-	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
-				       indio_dev->masklength);
-
-	rx_array = kcalloc(4, scan_count, GFP_KERNEL);
-	if (!rx_array)
-		return -ENOMEM;
-	ret = lis3l02dq_read_all(indio_dev, rx_array);
-	if (ret < 0) {
-		kfree(rx_array);
-		return ret;
-	}
-	for (i = 0; i < scan_count; i++)
-		data[i] = combine_8_to_16(rx_array[i*4+1],
-					rx_array[i*4+3]);
-	kfree(rx_array);
-
-	return i*sizeof(data[0]);
-}
-
-static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	int len = 0;
-	char *data;
-
-	data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (!data)
-		goto done;
-
-	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
-		len = lis3l02dq_get_buffer_element(indio_dev, data);
-
-	iio_push_to_buffers_with_timestamp(indio_dev, data, pf->timestamp);
-
-	kfree(data);
-done:
-	iio_trigger_notify_done(indio_dev->trig);
-	return IRQ_HANDLED;
-}
-
-/* Caller responsible for locking as necessary. */
-static int
-__lis3l02dq_write_data_ready_config(struct iio_dev *indio_dev, bool state)
-{
-	int ret;
-	u8 valold;
-	bool currentlyset;
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-
-	/* Get the current event mask register */
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_2_ADDR,
-				       &valold);
-	if (ret)
-		goto error_ret;
-	/* Find out if data ready is already on */
-	currentlyset
-		= valold & LIS3L02DQ_REG_CTRL_2_ENABLE_DATA_READY_GENERATION;
-
-	/* Disable requested */
-	if (!state && currentlyset) {
-		/* Disable the data ready signal */
-		valold &= ~LIS3L02DQ_REG_CTRL_2_ENABLE_DATA_READY_GENERATION;
-
-		/* The double write is to overcome a hardware bug? */
-		ret = lis3l02dq_spi_write_reg_8(indio_dev,
-						LIS3L02DQ_REG_CTRL_2_ADDR,
-						valold);
-		if (ret)
-			goto error_ret;
-		ret = lis3l02dq_spi_write_reg_8(indio_dev,
-						LIS3L02DQ_REG_CTRL_2_ADDR,
-						valold);
-		if (ret)
-			goto error_ret;
-		st->trigger_on = false;
-	/* Enable requested */
-	} else if (state && !currentlyset) {
-		/* If not set, enable requested
-		 * first disable all events */
-		ret = lis3l02dq_disable_all_events(indio_dev);
-		if (ret < 0)
-			goto error_ret;
-
-		valold = ret |
-			LIS3L02DQ_REG_CTRL_2_ENABLE_DATA_READY_GENERATION;
-
-		st->trigger_on = true;
-		ret = lis3l02dq_spi_write_reg_8(indio_dev,
-						LIS3L02DQ_REG_CTRL_2_ADDR,
-						valold);
-		if (ret)
-			goto error_ret;
-	}
-
-	return 0;
-error_ret:
-	return ret;
-}
-
-/**
- * lis3l02dq_data_rdy_trigger_set_state() set datardy interrupt state
- *
- * If disabling the interrupt also does a final read to ensure it is clear.
- * This is only important in some cases where the scan enable elements are
- * switched before the buffer is reenabled.
- **/
-static int lis3l02dq_data_rdy_trigger_set_state(struct iio_trigger *trig,
-						bool state)
-{
-	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
-	int ret = 0;
-	u8 t;
-
-	__lis3l02dq_write_data_ready_config(indio_dev, state);
-	if (!state) {
-		/*
-		 * A possible quirk with the handler is currently worked around
-		 * by ensuring outstanding read events are cleared.
-		 */
-		ret = lis3l02dq_read_all(indio_dev, NULL);
-	}
-	lis3l02dq_spi_read_reg_8(indio_dev,
-				 LIS3L02DQ_REG_WAKE_UP_SRC_ADDR,
-				 &t);
-	return ret;
-}
-
-/**
- * lis3l02dq_trig_try_reen() try reenabling irq for data rdy trigger
- * @trig:	the datardy trigger
- */
-static int lis3l02dq_trig_try_reen(struct iio_trigger *trig)
-{
-	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-	int i;
-
-	/* If gpio still high (or high again)
-	 * In theory possible we will need to do this several times */
-	for (i = 0; i < 5; i++)
-		if (gpio_get_value(st->gpio))
-			lis3l02dq_read_all(indio_dev, NULL);
-		else
-			break;
-	if (i == 5)
-		pr_info("Failed to clear the interrupt for lis3l02dq\n");
-
-	/* irq reenabled so success! */
-	return 0;
-}
-
-static const struct iio_trigger_ops lis3l02dq_trigger_ops = {
-	.owner = THIS_MODULE,
-	.set_trigger_state = &lis3l02dq_data_rdy_trigger_set_state,
-	.try_reenable = &lis3l02dq_trig_try_reen,
-};
-
-int lis3l02dq_probe_trigger(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-
-	st->trig = iio_trigger_alloc("lis3l02dq-dev%d", indio_dev->id);
-	if (!st->trig) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-
-	st->trig->dev.parent = &st->us->dev;
-	st->trig->ops = &lis3l02dq_trigger_ops;
-	iio_trigger_set_drvdata(st->trig, indio_dev);
-	ret = iio_trigger_register(st->trig);
-	if (ret)
-		goto error_free_trig;
-
-	return 0;
-
-error_free_trig:
-	iio_trigger_free(st->trig);
-error_ret:
-	return ret;
-}
-
-void lis3l02dq_remove_trigger(struct iio_dev *indio_dev)
-{
-	struct lis3l02dq_state *st = iio_priv(indio_dev);
-
-	iio_trigger_unregister(st->trig);
-	iio_trigger_free(st->trig);
-}
-
-void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev)
-{
-	iio_dealloc_pollfunc(indio_dev->pollfunc);
-	iio_kfifo_free(indio_dev->buffer);
-}
-
-static int lis3l02dq_buffer_postenable(struct iio_dev *indio_dev)
-{
-	/* Disable unwanted channels otherwise the interrupt will not clear */
-	u8 t;
-	int ret;
-	bool oneenabled = false;
-
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_1_ADDR,
-				       &t);
-	if (ret)
-		goto error_ret;
-
-	if (test_bit(0, indio_dev->active_scan_mask)) {
-		t |= LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE;
-		oneenabled = true;
-	} else {
-		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE;
-	}
-	if (test_bit(1, indio_dev->active_scan_mask)) {
-		t |= LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE;
-		oneenabled = true;
-	} else {
-		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE;
-	}
-	if (test_bit(2, indio_dev->active_scan_mask)) {
-		t |= LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE;
-		oneenabled = true;
-	} else {
-		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE;
-	}
-	if (!oneenabled) /* what happens in this case is unknown */
-		return -EINVAL;
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_1_ADDR,
-					t);
-	if (ret)
-		goto error_ret;
-
-	return iio_triggered_buffer_postenable(indio_dev);
-error_ret:
-	return ret;
-}
-
-/* Turn all channels on again */
-static int lis3l02dq_buffer_predisable(struct iio_dev *indio_dev)
-{
-	u8 t;
-	int ret;
-
-	ret = iio_triggered_buffer_predisable(indio_dev);
-	if (ret)
-		goto error_ret;
-
-	ret = lis3l02dq_spi_read_reg_8(indio_dev,
-				       LIS3L02DQ_REG_CTRL_1_ADDR,
-				       &t);
-	if (ret)
-		goto error_ret;
-	t |= LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE |
-		LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE |
-		LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE;
-
-	ret = lis3l02dq_spi_write_reg_8(indio_dev,
-					LIS3L02DQ_REG_CTRL_1_ADDR,
-					t);
-
-error_ret:
-	return ret;
-}
-
-static const struct iio_buffer_setup_ops lis3l02dq_buffer_setup_ops = {
-	.postenable = &lis3l02dq_buffer_postenable,
-	.predisable = &lis3l02dq_buffer_predisable,
-};
-
-int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct iio_buffer *buffer;
-
-	buffer = iio_kfifo_allocate();
-	if (!buffer)
-		return -ENOMEM;
-
-	iio_device_attach_buffer(indio_dev, buffer);
-
-	buffer->scan_timestamp = true;
-	indio_dev->setup_ops = &lis3l02dq_buffer_setup_ops;
-
-	/* Functions are NULL as we set handler below */
-	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
-						 &lis3l02dq_trigger_handler,
-						 0,
-						 indio_dev,
-						 "lis3l02dq_consumer%d",
-						 indio_dev->id);
-
-	if (!indio_dev->pollfunc) {
-		ret = -ENOMEM;
-		goto error_iio_sw_rb_free;
-	}
-
-	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
-	return 0;
-
-error_iio_sw_rb_free:
-	iio_kfifo_free(indio_dev->buffer);
-	return ret;
-}
diff --git a/drivers/staging/iio/accel/sca3000.h b/drivers/staging/iio/accel/sca3000.h
deleted file mode 100644
index 9c8a9587df7d..000000000000
--- a/drivers/staging/iio/accel/sca3000.h
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * sca3000.c -- support VTI sca3000 series accelerometers
- *              via SPI
- *
- * Copyright (c) 2007 Jonathan Cameron <jic23@kernel.org>
- *
- * Partly based upon tle62x0.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Initial mode is direct measurement.
- *
- * Untested things
- *
- * Temperature reading (the e05 I'm testing with doesn't have a sensor)
- *
- * Free fall detection mode - supported but untested as I'm not droping my
- * dubious wire rig far enough to test it.
- *
- * Unsupported as yet
- *
- * Time stamping of data from ring. Various ideas on how to do this but none
- * are remotely simple. Suggestions welcome.
- *
- * Individual enabling disabling of channels going into ring buffer
- *
- * Overflow handling (this is signaled for all but 8 bit ring buffer mode.)
- *
- * Motion detector using AND combinations of signals.
- *
- * Note: Be very careful about not touching an register bytes marked
- * as reserved on the data sheet. They really mean it as changing convents of
- * some will cause the device to lock up.
- *
- * Known issues - on rare occasions the interrupts lock up. Not sure why as yet.
- * Can probably alleviate this by reading the interrupt register on start, but
- * that is really just brushing the problem under the carpet.
- */
-#ifndef _SCA3000
-#define _SCA3000
-
-#define SCA3000_WRITE_REG(a) (((a) << 2) | 0x02)
-#define SCA3000_READ_REG(a) ((a) << 2)
-
-#define SCA3000_REG_ADDR_REVID			0x00
-#define SCA3000_REVID_MAJOR_MASK		0xf0
-#define SCA3000_REVID_MINOR_MASK		0x0f
-
-#define SCA3000_REG_ADDR_STATUS			0x02
-#define SCA3000_LOCKED				0x20
-#define SCA3000_EEPROM_CS_ERROR			0x02
-#define SCA3000_SPI_FRAME_ERROR			0x01
-
-/* All reads done using register decrement so no need to directly access LSBs */
-#define SCA3000_REG_ADDR_X_MSB			0x05
-#define SCA3000_REG_ADDR_Y_MSB			0x07
-#define SCA3000_REG_ADDR_Z_MSB			0x09
-
-#define SCA3000_REG_ADDR_RING_OUT		0x0f
-
-/* Temp read untested - the e05 doesn't have the sensor */
-#define SCA3000_REG_ADDR_TEMP_MSB		0x13
-
-#define SCA3000_REG_ADDR_MODE			0x14
-#define SCA3000_MODE_PROT_MASK			0x28
-
-#define SCA3000_RING_BUF_ENABLE			0x80
-#define SCA3000_RING_BUF_8BIT			0x40
-/*
- * Free fall detection triggers an interrupt if the acceleration
- * is below a threshold for equivalent of 25cm drop
- */
-#define SCA3000_FREE_FALL_DETECT		0x10
-#define SCA3000_MEAS_MODE_NORMAL		0x00
-#define SCA3000_MEAS_MODE_OP_1			0x01
-#define SCA3000_MEAS_MODE_OP_2			0x02
-
-/*
- * In motion detection mode the accelerations are band pass filtered
- * (approx 1 - 25Hz) and then a programmable threshold used to trigger
- * and interrupt.
- */
-#define SCA3000_MEAS_MODE_MOT_DET		0x03
-
-#define SCA3000_REG_ADDR_BUF_COUNT		0x15
-
-#define SCA3000_REG_ADDR_INT_STATUS		0x16
-
-#define SCA3000_INT_STATUS_THREE_QUARTERS	0x80
-#define SCA3000_INT_STATUS_HALF			0x40
-
-#define SCA3000_INT_STATUS_FREE_FALL		0x08
-#define SCA3000_INT_STATUS_Y_TRIGGER		0x04
-#define SCA3000_INT_STATUS_X_TRIGGER		0x02
-#define SCA3000_INT_STATUS_Z_TRIGGER		0x01
-
-/* Used to allow access to multiplexed registers */
-#define SCA3000_REG_ADDR_CTRL_SEL		0x18
-/* Only available for SCA3000-D03 and SCA3000-D01 */
-#define SCA3000_REG_CTRL_SEL_I2C_DISABLE	0x01
-#define SCA3000_REG_CTRL_SEL_MD_CTRL		0x02
-#define SCA3000_REG_CTRL_SEL_MD_Y_TH		0x03
-#define SCA3000_REG_CTRL_SEL_MD_X_TH		0x04
-#define SCA3000_REG_CTRL_SEL_MD_Z_TH		0x05
-/*
- * BE VERY CAREFUL WITH THIS, IF 3 BITS ARE NOT SET the device
- * will not function
- */
-#define SCA3000_REG_CTRL_SEL_OUT_CTRL		0x0B
-#define SCA3000_OUT_CTRL_PROT_MASK		0xE0
-#define SCA3000_OUT_CTRL_BUF_X_EN		0x10
-#define SCA3000_OUT_CTRL_BUF_Y_EN		0x08
-#define SCA3000_OUT_CTRL_BUF_Z_EN		0x04
-#define SCA3000_OUT_CTRL_BUF_DIV_4		0x02
-#define SCA3000_OUT_CTRL_BUF_DIV_2		0x01
-
-/*
- * Control which motion detector interrupts are on.
- * For now only OR combinations are supported.
- */
-#define SCA3000_MD_CTRL_PROT_MASK		0xC0
-#define SCA3000_MD_CTRL_OR_Y			0x01
-#define SCA3000_MD_CTRL_OR_X			0x02
-#define SCA3000_MD_CTRL_OR_Z			0x04
-/* Currently unsupported */
-#define SCA3000_MD_CTRL_AND_Y			0x08
-#define SCA3000_MD_CTRL_AND_X			0x10
-#define SAC3000_MD_CTRL_AND_Z			0x20
-
-/*
- * Some control registers of complex access methods requiring this register to
- * be used to remove a lock.
- */
-#define SCA3000_REG_ADDR_UNLOCK			0x1e
-
-#define SCA3000_REG_ADDR_INT_MASK		0x21
-#define SCA3000_INT_MASK_PROT_MASK		0x1C
-
-#define SCA3000_INT_MASK_RING_THREE_QUARTER	0x80
-#define SCA3000_INT_MASK_RING_HALF		0x40
-
-#define SCA3000_INT_MASK_ALL_INTS		0x02
-#define SCA3000_INT_MASK_ACTIVE_HIGH		0x01
-#define SCA3000_INT_MASK_ACTIVE_LOW		0x00
-
-/* Values of multiplexed registers (write to ctrl_data after select) */
-#define SCA3000_REG_ADDR_CTRL_DATA		0x22
-
-/*
- * Measurement modes available on some sca3000 series chips. Code assumes others
- * may become available in the future.
- *
- * Bypass - Bypass the low-pass filter in the signal channel so as to increase
- *          signal bandwidth.
- *
- * Narrow - Narrow low-pass filtering of the signal channel and half output
- *          data rate by decimation.
- *
- * Wide - Widen low-pass filtering of signal channel to increase bandwidth
- */
-#define SCA3000_OP_MODE_BYPASS			0x01
-#define SCA3000_OP_MODE_NARROW			0x02
-#define SCA3000_OP_MODE_WIDE			0x04
-#define SCA3000_MAX_TX 6
-#define SCA3000_MAX_RX 2
-
-/**
- * struct sca3000_state - device instance state information
- * @us:			the associated spi device
- * @info:			chip variant information
- * @interrupt_handler_ws:	event interrupt handler for all events
- * @last_timestamp:		the timestamp of the last event
- * @mo_det_use_count:		reference counter for the motion detection unit
- * @lock:			lock used to protect elements of sca3000_state
- *				and the underlying device state.
- * @bpse:			number of bits per scan element
- * @tx:			dma-able transmit buffer
- * @rx:			dma-able receive buffer
- **/
-struct sca3000_state {
-	struct spi_device		*us;
-	const struct sca3000_chip_info	*info;
-	struct work_struct		interrupt_handler_ws;
-	s64				last_timestamp;
-	int				mo_det_use_count;
-	struct mutex			lock;
-	int				bpse;
-	/* Can these share a cacheline ? */
-	u8				rx[2] ____cacheline_aligned;
-	u8				tx[6] ____cacheline_aligned;
-};
-
-/**
- * struct sca3000_chip_info - model dependent parameters
- * @scale:			scale * 10^-6
- * @temp_output:		some devices have temperature sensors.
- * @measurement_mode_freq:	normal mode sampling frequency
- * @option_mode_1:		first optional mode. Not all models have one
- * @option_mode_1_freq:		option mode 1 sampling frequency
- * @option_mode_2:		second optional mode. Not all chips have one
- * @option_mode_2_freq:		option mode 2 sampling frequency
- *
- * This structure is used to hold information about the functionality of a given
- * sca3000 variant.
- **/
-struct sca3000_chip_info {
-	unsigned int		scale;
-	bool			temp_output;
-	int			measurement_mode_freq;
-	int			option_mode_1;
-	int			option_mode_1_freq;
-	int			option_mode_2;
-	int			option_mode_2_freq;
-	int			mot_det_mult_xz[6];
-	int			mot_det_mult_y[7];
-};
-
-int sca3000_read_data_short(struct sca3000_state *st,
-			    u8 reg_address_high,
-			    int len);
-
-/**
- * sca3000_write_reg() write a single register
- * @address:	address of register on chip
- * @val:	value to be written to register
- *
- * The main lock must be held.
- **/
-int sca3000_write_reg(struct sca3000_state *st, u8 address, u8 val);
-
-#ifdef CONFIG_IIO_BUFFER
-/**
- * sca3000_register_ring_funcs() setup the ring state change functions
- **/
-void sca3000_register_ring_funcs(struct iio_dev *indio_dev);
-
-/**
- * sca3000_configure_ring() - allocate and configure ring buffer
- * @indio_dev: iio-core device whose ring is to be configured
- *
- * The hardware ring buffer needs far fewer ring buffer functions than
- * a software one as a lot of things are handled automatically.
- * This function also tells the iio core that our device supports a
- * hardware ring buffer mode.
- **/
-int sca3000_configure_ring(struct iio_dev *indio_dev);
-
-/**
- * sca3000_unconfigure_ring() - deallocate the ring buffer
- * @indio_dev: iio-core device whose ring we are freeing
- **/
-void sca3000_unconfigure_ring(struct iio_dev *indio_dev);
-
-/**
- * sca3000_ring_int_process() handles ring related event pushing and escalation
- * @val:	the event code
- **/
-void sca3000_ring_int_process(u8 val, struct iio_buffer *ring);
-
-#else
-static inline void sca3000_register_ring_funcs(struct iio_dev *indio_dev)
-{
-}
-
-static inline
-int sca3000_register_ring_access_and_init(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-static inline void sca3000_ring_int_process(u8 val, void *ring)
-{
-}
-
-#endif
-#endif /* _SCA3000 */
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
deleted file mode 100644
index b614f272b5f4..000000000000
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ /dev/null
@@ -1,1209 +0,0 @@
-/*
- * sca3000_core.c -- support VTI sca3000 series accelerometers via SPI
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org>
- *
- * See industrialio/accels/sca3000.h for comments.
- */
-
-#include <linux/interrupt.h>
-#include <linux/fs.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-#include <linux/iio/buffer.h>
-
-#include "sca3000.h"
-
-enum sca3000_variant {
-	d01,
-	e02,
-	e04,
-	e05,
-};
-
-/*
- * Note where option modes are not defined, the chip simply does not
- * support any.
- * Other chips in the sca3000 series use i2c and are not included here.
- *
- * Some of these devices are only listed in the family data sheet and
- * do not actually appear to be available.
- */
-static const struct sca3000_chip_info sca3000_spi_chip_info_tbl[] = {
-	[d01] = {
-		.scale = 7357,
-		.temp_output = true,
-		.measurement_mode_freq = 250,
-		.option_mode_1 = SCA3000_OP_MODE_BYPASS,
-		.option_mode_1_freq = 250,
-		.mot_det_mult_xz = {50, 100, 200, 350, 650, 1300},
-		.mot_det_mult_y = {50, 100, 150, 250, 450, 850, 1750},
-	},
-	[e02] = {
-		.scale = 9810,
-		.measurement_mode_freq = 125,
-		.option_mode_1 = SCA3000_OP_MODE_NARROW,
-		.option_mode_1_freq = 63,
-		.mot_det_mult_xz = {100, 150, 300, 550, 1050, 2050},
-		.mot_det_mult_y = {50, 100, 200, 350, 700, 1350, 2700},
-	},
-	[e04] = {
-		.scale = 19620,
-		.measurement_mode_freq = 100,
-		.option_mode_1 = SCA3000_OP_MODE_NARROW,
-		.option_mode_1_freq = 50,
-		.option_mode_2 = SCA3000_OP_MODE_WIDE,
-		.option_mode_2_freq = 400,
-		.mot_det_mult_xz = {200, 300, 600, 1100, 2100, 4100},
-		.mot_det_mult_y = {100, 200, 400, 7000, 1400, 2700, 54000},
-	},
-	[e05] = {
-		.scale = 61313,
-		.measurement_mode_freq = 200,
-		.option_mode_1 = SCA3000_OP_MODE_NARROW,
-		.option_mode_1_freq = 50,
-		.option_mode_2 = SCA3000_OP_MODE_WIDE,
-		.option_mode_2_freq = 400,
-		.mot_det_mult_xz = {600, 900, 1700, 3200, 6100, 11900},
-		.mot_det_mult_y = {300, 600, 1200, 2000, 4100, 7800, 15600},
-	},
-};
-
-int sca3000_write_reg(struct sca3000_state *st, u8 address, u8 val)
-{
-	st->tx[0] = SCA3000_WRITE_REG(address);
-	st->tx[1] = val;
-	return spi_write(st->us, st->tx, 2);
-}
-
-int sca3000_read_data_short(struct sca3000_state *st,
-			    uint8_t reg_address_high,
-			    int len)
-{
-	struct spi_transfer xfer[2] = {
-		{
-			.len = 1,
-			.tx_buf = st->tx,
-		}, {
-			.len = len,
-			.rx_buf = st->rx,
-		}
-	};
-	st->tx[0] = SCA3000_READ_REG(reg_address_high);
-
-	return spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer));
-}
-
-/**
- * sca3000_reg_lock_on() test if the ctrl register lock is on
- *
- * Lock must be held.
- **/
-static int sca3000_reg_lock_on(struct sca3000_state *st)
-{
-	int ret;
-
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_STATUS, 1);
-	if (ret < 0)
-		return ret;
-
-	return !(st->rx[0] & SCA3000_LOCKED);
-}
-
-/**
- * __sca3000_unlock_reg_lock() unlock the control registers
- *
- * Note the device does not appear to support doing this in a single transfer.
- * This should only ever be used as part of ctrl reg read.
- * Lock must be held before calling this
- **/
-static int __sca3000_unlock_reg_lock(struct sca3000_state *st)
-{
-	struct spi_transfer xfer[3] = {
-		{
-			.len = 2,
-			.cs_change = 1,
-			.tx_buf = st->tx,
-		}, {
-			.len = 2,
-			.cs_change = 1,
-			.tx_buf = st->tx + 2,
-		}, {
-			.len = 2,
-			.tx_buf = st->tx + 4,
-		},
-	};
-	st->tx[0] = SCA3000_WRITE_REG(SCA3000_REG_ADDR_UNLOCK);
-	st->tx[1] = 0x00;
-	st->tx[2] = SCA3000_WRITE_REG(SCA3000_REG_ADDR_UNLOCK);
-	st->tx[3] = 0x50;
-	st->tx[4] = SCA3000_WRITE_REG(SCA3000_REG_ADDR_UNLOCK);
-	st->tx[5] = 0xA0;
-
-	return spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer));
-}
-
-/**
- * sca3000_write_ctrl_reg() write to a lock protect ctrl register
- * @sel: selects which registers we wish to write to
- * @val: the value to be written
- *
- * Certain control registers are protected against overwriting by the lock
- * register and use a shared write address. This function allows writing of
- * these registers.
- * Lock must be held.
- **/
-static int sca3000_write_ctrl_reg(struct sca3000_state *st,
-				  uint8_t sel,
-				  uint8_t val)
-{
-
-	int ret;
-
-	ret = sca3000_reg_lock_on(st);
-	if (ret < 0)
-		goto error_ret;
-	if (ret) {
-		ret = __sca3000_unlock_reg_lock(st);
-		if (ret)
-			goto error_ret;
-	}
-
-	/* Set the control select register */
-	ret = sca3000_write_reg(st, SCA3000_REG_ADDR_CTRL_SEL, sel);
-	if (ret)
-		goto error_ret;
-
-	/* Write the actual value into the register */
-	ret = sca3000_write_reg(st, SCA3000_REG_ADDR_CTRL_DATA, val);
-
-error_ret:
-	return ret;
-}
-
-/**
- * sca3000_read_ctrl_reg() read from lock protected control register.
- *
- * Lock must be held.
- **/
-static int sca3000_read_ctrl_reg(struct sca3000_state *st,
-				 u8 ctrl_reg)
-{
-	int ret;
-
-	ret = sca3000_reg_lock_on(st);
-	if (ret < 0)
-		goto error_ret;
-	if (ret) {
-		ret = __sca3000_unlock_reg_lock(st);
-		if (ret)
-			goto error_ret;
-	}
-	/* Set the control select register */
-	ret = sca3000_write_reg(st, SCA3000_REG_ADDR_CTRL_SEL, ctrl_reg);
-	if (ret)
-		goto error_ret;
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_CTRL_DATA, 1);
-	if (ret)
-		goto error_ret;
-	else
-		return st->rx[0];
-error_ret:
-	return ret;
-}
-
-/**
- * sca3000_show_rev() - sysfs interface to read the chip revision number
- **/
-static ssize_t sca3000_show_rev(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	int len = 0, ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_REVID, 1);
-	if (ret < 0)
-		goto error_ret;
-	len += sprintf(buf + len,
-		       "major=%d, minor=%d\n",
-		       st->rx[0] & SCA3000_REVID_MAJOR_MASK,
-		       st->rx[0] & SCA3000_REVID_MINOR_MASK);
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret ? ret : len;
-}
-
-/**
- * sca3000_show_available_measurement_modes() display available modes
- *
- * This is all read from chip specific data in the driver. Not all
- * of the sca3000 series support modes other than normal.
- **/
-static ssize_t
-sca3000_show_available_measurement_modes(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int len = 0;
-
-	len += sprintf(buf + len, "0 - normal mode");
-	switch (st->info->option_mode_1) {
-	case SCA3000_OP_MODE_NARROW:
-		len += sprintf(buf + len, ", 1 - narrow mode");
-		break;
-	case SCA3000_OP_MODE_BYPASS:
-		len += sprintf(buf + len, ", 1 - bypass mode");
-		break;
-	}
-	switch (st->info->option_mode_2) {
-	case SCA3000_OP_MODE_WIDE:
-		len += sprintf(buf + len, ", 2 - wide mode");
-		break;
-	}
-	/* always supported */
-	len += sprintf(buf + len, " 3 - motion detection\n");
-
-	return len;
-}
-
-/**
- * sca3000_show_measurement_mode() sysfs read of current mode
- **/
-static ssize_t
-sca3000_show_measurement_mode(struct device *dev,
-			      struct device_attribute *attr,
-			      char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int len = 0, ret;
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto error_ret;
-	/* mask bottom 2 bits - only ones that are relevant */
-	st->rx[0] &= 0x03;
-	switch (st->rx[0]) {
-	case SCA3000_MEAS_MODE_NORMAL:
-		len += sprintf(buf + len, "0 - normal mode\n");
-		break;
-	case SCA3000_MEAS_MODE_MOT_DET:
-		len += sprintf(buf + len, "3 - motion detection\n");
-		break;
-	case SCA3000_MEAS_MODE_OP_1:
-		switch (st->info->option_mode_1) {
-		case SCA3000_OP_MODE_NARROW:
-			len += sprintf(buf + len, "1 - narrow mode\n");
-			break;
-		case SCA3000_OP_MODE_BYPASS:
-			len += sprintf(buf + len, "1 - bypass mode\n");
-			break;
-		}
-		break;
-	case SCA3000_MEAS_MODE_OP_2:
-		switch (st->info->option_mode_2) {
-		case SCA3000_OP_MODE_WIDE:
-			len += sprintf(buf + len, "2 - wide mode\n");
-			break;
-		}
-		break;
-	}
-
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret ? ret : len;
-}
-
-/**
- * sca3000_store_measurement_mode() set the current mode
- **/
-static ssize_t
-sca3000_store_measurement_mode(struct device *dev,
-			       struct device_attribute *attr,
-			       const char *buf,
-			       size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret;
-	u8 mask = 0x03;
-	u8 val;
-
-	mutex_lock(&st->lock);
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	if (val > 3) {
-		ret = -EINVAL;
-		goto error_ret;
-	}
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto error_ret;
-	st->rx[0] &= ~mask;
-	st->rx[0] |= (val & mask);
-	ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, st->rx[0]);
-	if (ret)
-		goto error_ret;
-	mutex_unlock(&st->lock);
-
-	return len;
-
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret;
-}
-
-
-/*
- * Not even vaguely standard attributes so defined here rather than
- * in the relevant IIO core headers
- */
-static IIO_DEVICE_ATTR(measurement_mode_available, S_IRUGO,
-		       sca3000_show_available_measurement_modes,
-		       NULL, 0);
-
-static IIO_DEVICE_ATTR(measurement_mode, S_IRUGO | S_IWUSR,
-		       sca3000_show_measurement_mode,
-		       sca3000_store_measurement_mode,
-		       0);
-
-/* More standard attributes */
-
-static IIO_DEVICE_ATTR(revision, S_IRUGO, sca3000_show_rev, NULL, 0);
-
-static const struct iio_event_spec sca3000_event = {
-	.type = IIO_EV_TYPE_MAG,
-	.dir = IIO_EV_DIR_RISING,
-	.mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE),
-};
-
-#define SCA3000_CHAN(index, mod)				\
-	{							\
-		.type = IIO_ACCEL,				\
-		.modified = 1,					\
-		.channel2 = mod,				\
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),\
-		.address = index,				\
-		.scan_index = index,				\
-		.scan_type = {					\
-			.sign = 's',				\
-			.realbits = 11,				\
-			.storagebits = 16,			\
-			.shift = 5,				\
-		},						\
-		.event_spec = &sca3000_event,			\
-		.num_event_specs = 1,				\
-	 }
-
-static const struct iio_chan_spec sca3000_channels[] = {
-	SCA3000_CHAN(0, IIO_MOD_X),
-	SCA3000_CHAN(1, IIO_MOD_Y),
-	SCA3000_CHAN(2, IIO_MOD_Z),
-};
-
-static const struct iio_chan_spec sca3000_channels_with_temp[] = {
-	SCA3000_CHAN(0, IIO_MOD_X),
-	SCA3000_CHAN(1, IIO_MOD_Y),
-	SCA3000_CHAN(2, IIO_MOD_Z),
-	{
-		.type = IIO_TEMP,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |
-			BIT(IIO_CHAN_INFO_OFFSET),
-		/* No buffer support */
-		.scan_index = -1,
-	},
-};
-
-static u8 sca3000_addresses[3][3] = {
-	[0] = {SCA3000_REG_ADDR_X_MSB, SCA3000_REG_CTRL_SEL_MD_X_TH,
-	       SCA3000_MD_CTRL_OR_X},
-	[1] = {SCA3000_REG_ADDR_Y_MSB, SCA3000_REG_CTRL_SEL_MD_Y_TH,
-	       SCA3000_MD_CTRL_OR_Y},
-	[2] = {SCA3000_REG_ADDR_Z_MSB, SCA3000_REG_CTRL_SEL_MD_Z_TH,
-	       SCA3000_MD_CTRL_OR_Z},
-};
-
-static int sca3000_read_raw(struct iio_dev *indio_dev,
-			    struct iio_chan_spec const *chan,
-			    int *val,
-			    int *val2,
-			    long mask)
-{
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret;
-	u8 address;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&st->lock);
-		if (chan->type == IIO_ACCEL) {
-			if (st->mo_det_use_count) {
-				mutex_unlock(&st->lock);
-				return -EBUSY;
-			}
-			address = sca3000_addresses[chan->address][0];
-			ret = sca3000_read_data_short(st, address, 2);
-			if (ret < 0) {
-				mutex_unlock(&st->lock);
-				return ret;
-			}
-			*val = (be16_to_cpup((__be16 *)st->rx) >> 3) & 0x1FFF;
-			*val = ((*val) << (sizeof(*val)*8 - 13)) >>
-				(sizeof(*val)*8 - 13);
-		} else {
-			/* get the temperature when available */
-			ret = sca3000_read_data_short(st,
-				SCA3000_REG_ADDR_TEMP_MSB, 2);
-			if (ret < 0) {
-				mutex_unlock(&st->lock);
-				return ret;
-			}
-			*val = ((st->rx[0] & 0x3F) << 3) |
-			       ((st->rx[1] & 0xE0) >> 5);
-		}
-		mutex_unlock(&st->lock);
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		if (chan->type == IIO_ACCEL)
-			*val2 = st->info->scale;
-		else /* temperature */
-			*val2 = 555556;
-		return IIO_VAL_INT_PLUS_MICRO;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = -214;
-		*val2 = 600000;
-		return IIO_VAL_INT_PLUS_MICRO;
-	default:
-		return -EINVAL;
-	}
-}
-
-/**
- * sca3000_read_av_freq() sysfs function to get available frequencies
- *
- * The later modes are only relevant to the ring buffer - and depend on current
- * mode. Note that data sheet gives rather wide tolerances for these so integer
- * division will give good enough answer and not all chips have them specified
- * at all.
- **/
-static ssize_t sca3000_read_av_freq(struct device *dev,
-			     struct device_attribute *attr,
-			     char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int len = 0, ret, val;
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	val = st->rx[0];
-	mutex_unlock(&st->lock);
-	if (ret)
-		goto error_ret;
-
-	switch (val & 0x03) {
-	case SCA3000_MEAS_MODE_NORMAL:
-		len += sprintf(buf + len, "%d %d %d\n",
-			       st->info->measurement_mode_freq,
-			       st->info->measurement_mode_freq/2,
-			       st->info->measurement_mode_freq/4);
-		break;
-	case SCA3000_MEAS_MODE_OP_1:
-		len += sprintf(buf + len, "%d %d %d\n",
-			       st->info->option_mode_1_freq,
-			       st->info->option_mode_1_freq/2,
-			       st->info->option_mode_1_freq/4);
-		break;
-	case SCA3000_MEAS_MODE_OP_2:
-		len += sprintf(buf + len, "%d %d %d\n",
-			       st->info->option_mode_2_freq,
-			       st->info->option_mode_2_freq/2,
-			       st->info->option_mode_2_freq/4);
-		break;
-	}
-	return len;
-error_ret:
-	return ret;
-}
-/**
- * __sca3000_get_base_freq() obtain mode specific base frequency
- *
- * lock must be held
- **/
-static inline int __sca3000_get_base_freq(struct sca3000_state *st,
-					  const struct sca3000_chip_info *info,
-					  int *base_freq)
-{
-	int ret;
-
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto error_ret;
-	switch (0x03 & st->rx[0]) {
-	case SCA3000_MEAS_MODE_NORMAL:
-		*base_freq = info->measurement_mode_freq;
-		break;
-	case SCA3000_MEAS_MODE_OP_1:
-		*base_freq = info->option_mode_1_freq;
-		break;
-	case SCA3000_MEAS_MODE_OP_2:
-		*base_freq = info->option_mode_2_freq;
-		break;
-	}
-error_ret:
-	return ret;
-}
-
-/**
- * sca3000_read_frequency() sysfs interface to get the current frequency
- **/
-static ssize_t sca3000_read_frequency(struct device *dev,
-			       struct device_attribute *attr,
-			       char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret, len = 0, base_freq = 0, val;
-
-	mutex_lock(&st->lock);
-	ret = __sca3000_get_base_freq(st, st->info, &base_freq);
-	if (ret)
-		goto error_ret_mut;
-	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL);
-	mutex_unlock(&st->lock);
-	if (ret)
-		goto error_ret;
-	val = ret;
-	if (base_freq > 0)
-		switch (val & 0x03) {
-		case 0x00:
-		case 0x03:
-			len = sprintf(buf, "%d\n", base_freq);
-			break;
-		case 0x01:
-			len = sprintf(buf, "%d\n", base_freq/2);
-			break;
-		case 0x02:
-			len = sprintf(buf, "%d\n", base_freq/4);
-			break;
-	}
-
-	return len;
-error_ret_mut:
-	mutex_unlock(&st->lock);
-error_ret:
-	return ret;
-}
-
-/**
- * sca3000_set_frequency() sysfs interface to set the current frequency
- **/
-static ssize_t sca3000_set_frequency(struct device *dev,
-			      struct device_attribute *attr,
-			      const char *buf,
-			      size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret, base_freq = 0;
-	int ctrlval;
-	int val;
-
-	ret = kstrtoint(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	mutex_lock(&st->lock);
-	/* What mode are we in? */
-	ret = __sca3000_get_base_freq(st, st->info, &base_freq);
-	if (ret)
-		goto error_free_lock;
-
-	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL);
-	if (ret < 0)
-		goto error_free_lock;
-	ctrlval = ret;
-	/* clear the bits */
-	ctrlval &= ~0x03;
-
-	if (val == base_freq/2) {
-		ctrlval |= SCA3000_OUT_CTRL_BUF_DIV_2;
-	} else if (val == base_freq/4) {
-		ctrlval |= SCA3000_OUT_CTRL_BUF_DIV_4;
-	} else if (val != base_freq) {
-		ret = -EINVAL;
-		goto error_free_lock;
-	}
-	ret = sca3000_write_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL,
-				     ctrlval);
-error_free_lock:
-	mutex_unlock(&st->lock);
-
-	return ret ? ret : len;
-}
-
-/*
- * Should only really be registered if ring buffer support is compiled in.
- * Does no harm however and doing it right would add a fair bit of complexity
- */
-static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(sca3000_read_av_freq);
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-			      sca3000_read_frequency,
-			      sca3000_set_frequency);
-
-/**
- * sca3000_read_thresh() - query of a threshold
- **/
-static int sca3000_read_thresh(struct iio_dev *indio_dev,
-			       const struct iio_chan_spec *chan,
-			       enum iio_event_type type,
-			       enum iio_event_direction dir,
-			       enum iio_event_info info,
-			       int *val, int *val2)
-{
-	int ret, i;
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int num = chan->channel2;
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_ctrl_reg(st, sca3000_addresses[num][1]);
-	mutex_unlock(&st->lock);
-	if (ret < 0)
-		return ret;
-	*val = 0;
-	if (num == 1)
-		for_each_set_bit(i, (unsigned long *)&ret,
-				 ARRAY_SIZE(st->info->mot_det_mult_y))
-			*val += st->info->mot_det_mult_y[i];
-	else
-		for_each_set_bit(i, (unsigned long *)&ret,
-				 ARRAY_SIZE(st->info->mot_det_mult_xz))
-			*val += st->info->mot_det_mult_xz[i];
-
-	return IIO_VAL_INT;
-}
-
-/**
- * sca3000_write_thresh() control of threshold
- **/
-static int sca3000_write_thresh(struct iio_dev *indio_dev,
-				const struct iio_chan_spec *chan,
-				enum iio_event_type type,
-				enum iio_event_direction dir,
-				enum iio_event_info info,
-				int val, int val2)
-{
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int num = chan->channel2;
-	int ret;
-	int i;
-	u8 nonlinear = 0;
-
-	if (num == 1) {
-		i = ARRAY_SIZE(st->info->mot_det_mult_y);
-		while (i > 0)
-			if (val >= st->info->mot_det_mult_y[--i]) {
-				nonlinear |= (1 << i);
-				val -= st->info->mot_det_mult_y[i];
-			}
-	} else {
-		i = ARRAY_SIZE(st->info->mot_det_mult_xz);
-		while (i > 0)
-			if (val >= st->info->mot_det_mult_xz[--i]) {
-				nonlinear |= (1 << i);
-				val -= st->info->mot_det_mult_xz[i];
-			}
-	}
-
-	mutex_lock(&st->lock);
-	ret = sca3000_write_ctrl_reg(st, sca3000_addresses[num][1], nonlinear);
-	mutex_unlock(&st->lock);
-
-	return ret;
-}
-
-static struct attribute *sca3000_attributes[] = {
-	&iio_dev_attr_revision.dev_attr.attr,
-	&iio_dev_attr_measurement_mode_available.dev_attr.attr,
-	&iio_dev_attr_measurement_mode.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group sca3000_attribute_group = {
-	.attrs = sca3000_attributes,
-};
-
-/**
- * sca3000_event_handler() - handling ring and non ring events
- *
- * Ring related interrupt handler. Depending on event, push to
- * the ring buffer event chrdev or the event one.
- *
- * This function is complicated by the fact that the devices can signify ring
- * and non ring events via the same interrupt line and they can only
- * be distinguished via a read of the relevant status register.
- **/
-static irqreturn_t sca3000_event_handler(int irq, void *private)
-{
-	struct iio_dev *indio_dev = private;
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret, val;
-	s64 last_timestamp = iio_get_time_ns();
-
-	/*
-	 * Could lead if badly timed to an extra read of status reg,
-	 * but ensures no interrupt is missed.
-	 */
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_STATUS, 1);
-	val = st->rx[0];
-	mutex_unlock(&st->lock);
-	if (ret)
-		goto done;
-
-	sca3000_ring_int_process(val, indio_dev->buffer);
-
-	if (val & SCA3000_INT_STATUS_FREE_FALL)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_X_AND_Y_AND_Z,
-						  IIO_EV_TYPE_MAG,
-						  IIO_EV_DIR_FALLING),
-			       last_timestamp);
-
-	if (val & SCA3000_INT_STATUS_Y_TRIGGER)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_Y,
-						  IIO_EV_TYPE_MAG,
-						  IIO_EV_DIR_RISING),
-			       last_timestamp);
-
-	if (val & SCA3000_INT_STATUS_X_TRIGGER)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_X,
-						  IIO_EV_TYPE_MAG,
-						  IIO_EV_DIR_RISING),
-			       last_timestamp);
-
-	if (val & SCA3000_INT_STATUS_Z_TRIGGER)
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-						  0,
-						  IIO_MOD_Z,
-						  IIO_EV_TYPE_MAG,
-						  IIO_EV_DIR_RISING),
-			       last_timestamp);
-
-done:
-	return IRQ_HANDLED;
-}
-
-/**
- * sca3000_read_event_config() what events are enabled
- **/
-static int sca3000_read_event_config(struct iio_dev *indio_dev,
-				     const struct iio_chan_spec *chan,
-				     enum iio_event_type type,
-				     enum iio_event_direction dir)
-{
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret;
-	u8 protect_mask = 0x03;
-	int num = chan->channel2;
-
-	/* read current value of mode register */
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto error_ret;
-
-	if ((st->rx[0] & protect_mask) != SCA3000_MEAS_MODE_MOT_DET)
-		ret = 0;
-	else {
-		ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_MD_CTRL);
-		if (ret < 0)
-			goto error_ret;
-		/* only supporting logical or's for now */
-		ret = !!(ret & sca3000_addresses[num][2]);
-	}
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret;
-}
-/**
- * sca3000_query_free_fall_mode() is free fall mode enabled
- **/
-static ssize_t sca3000_query_free_fall_mode(struct device *dev,
-					    struct device_attribute *attr,
-					    char *buf)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int val;
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	val = st->rx[0];
-	mutex_unlock(&st->lock);
-	if (ret < 0)
-		return ret;
-	return sprintf(buf, "%d\n", !!(val & SCA3000_FREE_FALL_DETECT));
-}
-
-/**
- * sca3000_set_free_fall_mode() simple on off control for free fall int
- *
- * In these chips the free fall detector should send an interrupt if
- * the device falls more than 25cm.  This has not been tested due
- * to fragile wiring.
- **/
-static ssize_t sca3000_set_free_fall_mode(struct device *dev,
-					  struct device_attribute *attr,
-					  const char *buf,
-					  size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	u8 val;
-	int ret;
-	u8 protect_mask = SCA3000_FREE_FALL_DETECT;
-
-	mutex_lock(&st->lock);
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-
-	/* read current value of mode register */
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto error_ret;
-
-	/* if off and should be on */
-	if (val && !(st->rx[0] & protect_mask))
-		ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE,
-					(st->rx[0] | SCA3000_FREE_FALL_DETECT));
-	/* if on and should be off */
-	else if (!val && (st->rx[0] & protect_mask))
-		ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE,
-					(st->rx[0] & ~protect_mask));
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret ? ret : len;
-}
-
-/**
- * sca3000_write_event_config() simple on off control for motion detector
- *
- * This is a per axis control, but enabling any will result in the
- * motion detector unit being enabled.
- * N.B. enabling motion detector stops normal data acquisition.
- * There is a complexity in knowing which mode to return to when
- * this mode is disabled.  Currently normal mode is assumed.
- **/
-static int sca3000_write_event_config(struct iio_dev *indio_dev,
-				      const struct iio_chan_spec *chan,
-				      enum iio_event_type type,
-				      enum iio_event_direction dir,
-				      int state)
-{
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret, ctrlval;
-	u8 protect_mask = 0x03;
-	int num = chan->channel2;
-
-	mutex_lock(&st->lock);
-	/*
-	 * First read the motion detector config to find out if
-	 * this axis is on
-	 */
-	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_MD_CTRL);
-	if (ret < 0)
-		goto exit_point;
-	ctrlval = ret;
-	/* if off and should be on */
-	if (state && !(ctrlval & sca3000_addresses[num][2])) {
-		ret = sca3000_write_ctrl_reg(st,
-					     SCA3000_REG_CTRL_SEL_MD_CTRL,
-					     ctrlval |
-					     sca3000_addresses[num][2]);
-		if (ret)
-			goto exit_point;
-		st->mo_det_use_count++;
-	} else if (!state && (ctrlval & sca3000_addresses[num][2])) {
-		ret = sca3000_write_ctrl_reg(st,
-					     SCA3000_REG_CTRL_SEL_MD_CTRL,
-					     ctrlval &
-					     ~(sca3000_addresses[num][2]));
-		if (ret)
-			goto exit_point;
-		st->mo_det_use_count--;
-	}
-
-	/* read current value of mode register */
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto exit_point;
-	/* if off and should be on */
-	if ((st->mo_det_use_count)
-	    && ((st->rx[0] & protect_mask) != SCA3000_MEAS_MODE_MOT_DET))
-		ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE,
-					(st->rx[0] & ~protect_mask)
-					| SCA3000_MEAS_MODE_MOT_DET);
-	/* if on and should be off */
-	else if (!(st->mo_det_use_count)
-		 && ((st->rx[0] & protect_mask) == SCA3000_MEAS_MODE_MOT_DET))
-		ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE,
-					(st->rx[0] & ~protect_mask));
-exit_point:
-	mutex_unlock(&st->lock);
-
-	return ret;
-}
-
-/* Free fall detector related event attribute */
-static IIO_DEVICE_ATTR_NAMED(accel_xayaz_mag_falling_en,
-			     in_accel_x&y&z_mag_falling_en,
-			     S_IRUGO | S_IWUSR,
-			     sca3000_query_free_fall_mode,
-			     sca3000_set_free_fall_mode,
-			     0);
-
-static IIO_CONST_ATTR_NAMED(accel_xayaz_mag_falling_period,
-			    in_accel_x&y&z_mag_falling_period,
-			    "0.226");
-
-static struct attribute *sca3000_event_attributes[] = {
-	&iio_dev_attr_accel_xayaz_mag_falling_en.dev_attr.attr,
-	&iio_const_attr_accel_xayaz_mag_falling_period.dev_attr.attr,
-	NULL,
-};
-
-static struct attribute_group sca3000_event_attribute_group = {
-	.attrs = sca3000_event_attributes,
-	.name = "events",
-};
-
-/**
- * sca3000_clean_setup() get the device into a predictable state
- *
- * Devices use flash memory to store many of the register values
- * and hence can come up in somewhat unpredictable states.
- * Hence reset everything on driver load.
- **/
-static int sca3000_clean_setup(struct sca3000_state *st)
-{
-	int ret;
-
-	mutex_lock(&st->lock);
-	/* Ensure all interrupts have been acknowledged */
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_STATUS, 1);
-	if (ret)
-		goto error_ret;
-
-	/* Turn off all motion detection channels */
-	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_MD_CTRL);
-	if (ret < 0)
-		goto error_ret;
-	ret = sca3000_write_ctrl_reg(st, SCA3000_REG_CTRL_SEL_MD_CTRL,
-				     ret & SCA3000_MD_CTRL_PROT_MASK);
-	if (ret)
-		goto error_ret;
-
-	/* Disable ring buffer */
-	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL);
-	ret = sca3000_write_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL,
-				     (ret & SCA3000_OUT_CTRL_PROT_MASK)
-				     | SCA3000_OUT_CTRL_BUF_X_EN
-				     | SCA3000_OUT_CTRL_BUF_Y_EN
-				     | SCA3000_OUT_CTRL_BUF_Z_EN
-				     | SCA3000_OUT_CTRL_BUF_DIV_4);
-	if (ret)
-		goto error_ret;
-	/* Enable interrupts, relevant to mode and set up as active low */
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1);
-	if (ret)
-		goto error_ret;
-	ret = sca3000_write_reg(st,
-				SCA3000_REG_ADDR_INT_MASK,
-				(ret & SCA3000_INT_MASK_PROT_MASK)
-				| SCA3000_INT_MASK_ACTIVE_LOW);
-	if (ret)
-		goto error_ret;
-	/*
-	 * Select normal measurement mode, free fall off, ring off
-	 * Ring in 12 bit mode - it is fine to overwrite reserved bits 3,5
-	 * as that occurs in one of the example on the datasheet
-	 */
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto error_ret;
-	ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE,
-				(st->rx[0] & SCA3000_MODE_PROT_MASK));
-	st->bpse = 11;
-
-error_ret:
-	mutex_unlock(&st->lock);
-	return ret;
-}
-
-static const struct iio_info sca3000_info = {
-	.attrs = &sca3000_attribute_group,
-	.read_raw = &sca3000_read_raw,
-	.event_attrs = &sca3000_event_attribute_group,
-	.read_event_value = &sca3000_read_thresh,
-	.write_event_value = &sca3000_write_thresh,
-	.read_event_config = &sca3000_read_event_config,
-	.write_event_config = &sca3000_write_event_config,
-	.driver_module = THIS_MODULE,
-};
-
-static int sca3000_probe(struct spi_device *spi)
-{
-	int ret;
-	struct sca3000_state *st;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	st = iio_priv(indio_dev);
-	spi_set_drvdata(spi, indio_dev);
-	st->us = spi;
-	mutex_init(&st->lock);
-	st->info = &sca3000_spi_chip_info_tbl[spi_get_device_id(spi)
-					      ->driver_data];
-
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->name = spi_get_device_id(spi)->name;
-	indio_dev->info = &sca3000_info;
-	if (st->info->temp_output) {
-		indio_dev->channels = sca3000_channels_with_temp;
-		indio_dev->num_channels =
-			ARRAY_SIZE(sca3000_channels_with_temp);
-	} else {
-		indio_dev->channels = sca3000_channels;
-		indio_dev->num_channels = ARRAY_SIZE(sca3000_channels);
-	}
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	sca3000_configure_ring(indio_dev);
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		return ret;
-
-	if (spi->irq) {
-		ret = request_threaded_irq(spi->irq,
-					   NULL,
-					   &sca3000_event_handler,
-					   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-					   "sca3000",
-					   indio_dev);
-		if (ret)
-			goto error_unregister_dev;
-	}
-	sca3000_register_ring_funcs(indio_dev);
-	ret = sca3000_clean_setup(st);
-	if (ret)
-		goto error_free_irq;
-	return 0;
-
-error_free_irq:
-	if (spi->irq)
-		free_irq(spi->irq, indio_dev);
-error_unregister_dev:
-	iio_device_unregister(indio_dev);
-	return ret;
-}
-
-static int sca3000_stop_all_interrupts(struct sca3000_state *st)
-{
-	int ret;
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1);
-	if (ret)
-		goto error_ret;
-	ret = sca3000_write_reg(st, SCA3000_REG_ADDR_INT_MASK,
-				(st->rx[0] &
-				 ~(SCA3000_INT_MASK_RING_THREE_QUARTER |
-				   SCA3000_INT_MASK_RING_HALF |
-				   SCA3000_INT_MASK_ALL_INTS)));
-error_ret:
-	mutex_unlock(&st->lock);
-	return ret;
-}
-
-static int sca3000_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct sca3000_state *st = iio_priv(indio_dev);
-
-	/* Must ensure no interrupts can be generated after this! */
-	sca3000_stop_all_interrupts(st);
-	if (spi->irq)
-		free_irq(spi->irq, indio_dev);
-	iio_device_unregister(indio_dev);
-	sca3000_unconfigure_ring(indio_dev);
-
-	return 0;
-}
-
-static const struct spi_device_id sca3000_id[] = {
-	{"sca3000_d01", d01},
-	{"sca3000_e02", e02},
-	{"sca3000_e04", e04},
-	{"sca3000_e05", e05},
-	{}
-};
-MODULE_DEVICE_TABLE(spi, sca3000_id);
-
-static struct spi_driver sca3000_driver = {
-	.driver = {
-		.name = "sca3000",
-		.owner = THIS_MODULE,
-	},
-	.probe = sca3000_probe,
-	.remove = sca3000_remove,
-	.id_table = sca3000_id,
-};
-module_spi_driver(sca3000_driver);
-
-MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
-MODULE_DESCRIPTION("VTI SCA3000 Series Accelerometers SPI driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
deleted file mode 100644
index 23685e74917e..000000000000
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/*
- * sca3000_ring.c -- support VTI sca3000 series accelerometers via SPI
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org>
- *
- */
-
-#include <linux/interrupt.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/sysfs.h>
-#include <linux/sched.h>
-#include <linux/poll.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include "../ring_hw.h"
-#include "sca3000.h"
-
-/* RFC / future work
- *
- * The internal ring buffer doesn't actually change what it holds depending
- * on which signals are enabled etc, merely whether you can read them.
- * As such the scan mode selection is somewhat different than for a software
- * ring buffer and changing it actually covers any data already in the buffer.
- * Currently scan elements aren't configured so it doesn't matter.
- */
-
-static int sca3000_read_data(struct sca3000_state *st,
-			    uint8_t reg_address_high,
-			    u8 **rx_p,
-			    int len)
-{
-	int ret;
-	struct spi_transfer xfer[2] = {
-		{
-			.len = 1,
-			.tx_buf = st->tx,
-		}, {
-			.len = len,
-		}
-	};
-	*rx_p = kmalloc(len, GFP_KERNEL);
-	if (*rx_p == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	xfer[1].rx_buf = *rx_p;
-	st->tx[0] = SCA3000_READ_REG(reg_address_high);
-	ret = spi_sync_transfer(st->us, xfer, ARRAY_SIZE(xfer));
-	if (ret) {
-		dev_err(get_device(&st->us->dev), "problem reading register");
-		goto error_free_rx;
-	}
-
-	return 0;
-error_free_rx:
-	kfree(*rx_p);
-error_ret:
-	return ret;
-}
-
-/**
- * sca3000_read_first_n_hw_rb() - main ring access, pulls data from ring
- * @r:			the ring
- * @count:		number of samples to try and pull
- * @data:		output the actual samples pulled from the hw ring
- *
- * Currently does not provide timestamps.  As the hardware doesn't add them they
- * can only be inferred approximately from ring buffer events such as 50% full
- * and knowledge of when buffer was last emptied.  This is left to userspace.
- **/
-static int sca3000_read_first_n_hw_rb(struct iio_buffer *r,
-				      size_t count, char __user *buf)
-{
-	struct iio_hw_buffer *hw_ring = iio_to_hw_buf(r);
-	struct iio_dev *indio_dev = hw_ring->private;
-	struct sca3000_state *st = iio_priv(indio_dev);
-	u8 *rx;
-	int ret, i, num_available, num_read = 0;
-	int bytes_per_sample = 1;
-
-	if (st->bpse == 11)
-		bytes_per_sample = 2;
-
-	mutex_lock(&st->lock);
-	if (count % bytes_per_sample) {
-		ret = -EINVAL;
-		goto error_ret;
-	}
-
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_BUF_COUNT, 1);
-	if (ret)
-		goto error_ret;
-	else
-		num_available = st->rx[0];
-	/*
-	 * num_available is the total number of samples available
-	 * i.e. number of time points * number of channels.
-	 */
-	if (count > num_available * bytes_per_sample)
-		num_read = num_available*bytes_per_sample;
-	else
-		num_read = count;
-
-	ret = sca3000_read_data(st,
-				SCA3000_REG_ADDR_RING_OUT,
-				&rx, num_read);
-	if (ret)
-		goto error_ret;
-
-	for (i = 0; i < num_read; i++)
-		*(((u16 *)rx) + i) = be16_to_cpup((__be16 *)rx + i);
-
-	if (copy_to_user(buf, rx, num_read))
-		ret = -EFAULT;
-	kfree(rx);
-	r->stufftoread = 0;
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret ? ret : num_read;
-}
-
-static size_t sca3000_ring_buf_data_available(struct iio_buffer *r)
-{
-	return r->stufftoread ? r->watermark : 0;
-}
-
-/**
- * sca3000_query_ring_int() is the hardware ring status interrupt enabled
- **/
-static ssize_t sca3000_query_ring_int(struct device *dev,
-				      struct device_attribute *attr,
-				      char *buf)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret, val;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1);
-	val = st->rx[0];
-	mutex_unlock(&st->lock);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%d\n", !!(val & this_attr->address));
-}
-
-/**
- * sca3000_set_ring_int() set state of ring status interrupt
- **/
-static ssize_t sca3000_set_ring_int(struct device *dev,
-				      struct device_attribute *attr,
-				      const char *buf,
-				      size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	u8 val;
-	int ret;
-
-	mutex_lock(&st->lock);
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1);
-	if (ret)
-		goto error_ret;
-	if (val)
-		ret = sca3000_write_reg(st,
-					SCA3000_REG_ADDR_INT_MASK,
-					st->rx[0] | this_attr->address);
-	else
-		ret = sca3000_write_reg(st,
-					SCA3000_REG_ADDR_INT_MASK,
-					st->rx[0] & ~this_attr->address);
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret ? ret : len;
-}
-
-static IIO_DEVICE_ATTR(50_percent, S_IRUGO | S_IWUSR,
-		       sca3000_query_ring_int,
-		       sca3000_set_ring_int,
-		       SCA3000_INT_MASK_RING_HALF);
-
-static IIO_DEVICE_ATTR(75_percent, S_IRUGO | S_IWUSR,
-		       sca3000_query_ring_int,
-		       sca3000_set_ring_int,
-		       SCA3000_INT_MASK_RING_THREE_QUARTER);
-
-static ssize_t sca3000_show_buffer_scale(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct sca3000_state *st = iio_priv(indio_dev);
-
-	return sprintf(buf, "0.%06d\n", 4*st->info->scale);
-}
-
-static IIO_DEVICE_ATTR(in_accel_scale,
-		       S_IRUGO,
-		       sca3000_show_buffer_scale,
-		       NULL,
-		       0);
-
-/*
- * Ring buffer attributes
- * This device is a bit unusual in that the sampling frequency and bpse
- * only apply to the ring buffer.  At all times full rate and accuracy
- * is available via direct reading from registers.
- */
-static const struct attribute *sca3000_ring_attributes[] = {
-	&iio_dev_attr_50_percent.dev_attr.attr,
-	&iio_dev_attr_75_percent.dev_attr.attr,
-	&iio_dev_attr_in_accel_scale.dev_attr.attr,
-	NULL,
-};
-
-static struct iio_buffer *sca3000_rb_allocate(struct iio_dev *indio_dev)
-{
-	struct iio_buffer *buf;
-	struct iio_hw_buffer *ring;
-
-	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
-	if (!ring)
-		return NULL;
-
-	ring->private = indio_dev;
-	buf = &ring->buf;
-	buf->stufftoread = 0;
-	buf->length = 64;
-	buf->attrs = sca3000_ring_attributes;
-	iio_buffer_init(buf);
-
-	return buf;
-}
-
-static void sca3000_ring_release(struct iio_buffer *r)
-{
-	kfree(iio_to_hw_buf(r));
-}
-
-static const struct iio_buffer_access_funcs sca3000_ring_access_funcs = {
-	.read_first_n = &sca3000_read_first_n_hw_rb,
-	.data_available = sca3000_ring_buf_data_available,
-	.release = sca3000_ring_release,
-
-	.modes = INDIO_BUFFER_HARDWARE,
-};
-
-int sca3000_configure_ring(struct iio_dev *indio_dev)
-{
-	struct iio_buffer *buffer;
-
-	buffer = sca3000_rb_allocate(indio_dev);
-	if (buffer == NULL)
-		return -ENOMEM;
-	indio_dev->modes |= INDIO_BUFFER_HARDWARE;
-
-	indio_dev->buffer->access = &sca3000_ring_access_funcs;
-
-	iio_device_attach_buffer(indio_dev, buffer);
-
-	return 0;
-}
-
-void sca3000_unconfigure_ring(struct iio_dev *indio_dev)
-{
-	iio_buffer_put(indio_dev->buffer);
-}
-
-static inline
-int __sca3000_hw_ring_state_set(struct iio_dev *indio_dev, bool state)
-{
-	struct sca3000_state *st = iio_priv(indio_dev);
-	int ret;
-
-	mutex_lock(&st->lock);
-	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
-	if (ret)
-		goto error_ret;
-	if (state) {
-		dev_info(&indio_dev->dev, "supposedly enabling ring buffer\n");
-		ret = sca3000_write_reg(st,
-					SCA3000_REG_ADDR_MODE,
-					(st->rx[0] | SCA3000_RING_BUF_ENABLE));
-	} else
-		ret = sca3000_write_reg(st,
-					SCA3000_REG_ADDR_MODE,
-					(st->rx[0] & ~SCA3000_RING_BUF_ENABLE));
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret;
-}
-/**
- * sca3000_hw_ring_preenable() hw ring buffer preenable function
- *
- * Very simple enable function as the chip will allows normal reads
- * during ring buffer operation so as long as it is indeed running
- * before we notify the core, the precise ordering does not matter.
- **/
-static int sca3000_hw_ring_preenable(struct iio_dev *indio_dev)
-{
-	return __sca3000_hw_ring_state_set(indio_dev, 1);
-}
-
-static int sca3000_hw_ring_postdisable(struct iio_dev *indio_dev)
-{
-	return __sca3000_hw_ring_state_set(indio_dev, 0);
-}
-
-static const struct iio_buffer_setup_ops sca3000_ring_setup_ops = {
-	.preenable = &sca3000_hw_ring_preenable,
-	.postdisable = &sca3000_hw_ring_postdisable,
-};
-
-void sca3000_register_ring_funcs(struct iio_dev *indio_dev)
-{
-	indio_dev->setup_ops = &sca3000_ring_setup_ops;
-}
-
-/**
- * sca3000_ring_int_process() ring specific interrupt handling.
- *
- * This is only split from the main interrupt handler so as to
- * reduce the amount of code if the ring buffer is not enabled.
- **/
-void sca3000_ring_int_process(u8 val, struct iio_buffer *ring)
-{
-	if (val & (SCA3000_INT_STATUS_THREE_QUARTERS |
-		   SCA3000_INT_STATUS_HALF)) {
-		ring->stufftoread = true;
-		wake_up_interruptible(&ring->pollq);
-	}
-}
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index 94ae4232ee77..2f0d6cf048d2 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -1,54 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # ADC drivers
 #
 menu "Analog to digital converters"
 
-config AD7606
-	tristate "Analog Devices AD7606 ADC driver"
-	depends on GPIOLIB || COMPILE_TEST
-	select IIO_BUFFER
-	select IIO_TRIGGERED_BUFFER
-	help
-	  Say yes here to build support for Analog Devices:
-	  ad7606, ad7606-6, ad7606-4 analog to digital converters (ADC).
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7606.
-
-config AD7606_IFACE_PARALLEL
-	tristate "parallel interface support"
-	depends on AD7606
-	help
-	  Say yes here to include parallel interface support on the AD7606
-	  ADC driver.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7606_iface_parallel.
-
-config AD7606_IFACE_SPI
-	tristate "spi interface support"
-	depends on AD7606
-	depends on SPI
-	help
-	  Say yes here to include parallel interface support on the AD7606
-	  ADC driver.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7606_iface_spi.
-
-config AD7780
-	tristate "Analog Devices AD7780 and similar ADCs driver"
-	depends on SPI
-	depends on GPIOLIB || COMPILE_TEST
-	select AD_SIGMA_DELTA
-	help
-	  Say yes here to build support for Analog Devices AD7170, AD7171,
-	  AD7780 and AD7781 SPI analog to digital converters (ADC).
-	  If unsure, say N (but it's safe to say "Y").
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7780.
-
 config AD7816
 	tristate "Analog Devices AD7816/7/8 temperature sensor and ADC driver"
 	depends on SPI
@@ -57,62 +12,7 @@ config AD7816
 	  Say yes here to build support for Analog Devices AD7816/7/8
 	  temperature sensors and ADC.
 
-config AD7192
-	tristate "Analog Devices AD7190 AD7192 AD7195 ADC driver"
-	depends on SPI
-	select AD_SIGMA_DELTA
-	help
-	  Say yes here to build support for Analog Devices AD7190,
-	  AD7192 or AD7195 SPI analog to digital converters (ADC).
-	  If unsure, say N (but it's safe to say "Y").
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7192.
-
-config AD7280
-	tristate "Analog Devices AD7280A Lithium Ion Battery Monitoring System"
-	depends on SPI
-	help
-	  Say yes here to build support for Analog Devices AD7280A
-	  Lithium Ion Battery Monitoring System.
-
 	  To compile this driver as a module, choose M here: the
-	  module will be called ad7280a
+	  module will be called ad7816.
 
-config LPC32XX_ADC
-	tristate "NXP LPC32XX ADC"
-	depends on ARCH_LPC32XX || COMPILE_TEST
-	depends on HAS_IOMEM
-	help
-	  Say yes here to build support for the integrated ADC inside the
-	  LPC32XX SoC. Note that this feature uses the same hardware as the
-	  touchscreen driver, so you should either select only one of the two
-	  drivers (lpc32xx_adc or lpc32xx_ts) or, in the OpenFirmware case,
-	  activate only one via device tree selection.  Provides direct access
-	  via sysfs.
-
-config MXS_LRADC
-	tristate "Freescale i.MX23/i.MX28 LRADC"
-	depends on (ARCH_MXS || COMPILE_TEST) && HAS_IOMEM
-	depends on INPUT
-	select STMP_DEVICE
-	select IIO_BUFFER
-	select IIO_TRIGGERED_BUFFER
-	help
-	  Say yes here to build support for i.MX23/i.MX28 LRADC convertor
-	  built into these chips.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called mxs-lradc.
-
-config SPEAR_ADC
-	tristate "ST SPEAr ADC"
-	depends on PLAT_SPEAR || COMPILE_TEST
-	depends on HAS_IOMEM
-	help
-	  Say yes here to build support for the integrated ADC inside the
-	  ST SPEAr SoC. Provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called spear_adc.
 endmenu
diff --git a/drivers/staging/iio/adc/Makefile b/drivers/staging/iio/adc/Makefile
index 1c4277dbd318..1e2a94c4db84 100644
--- a/drivers/staging/iio/adc/Makefile
+++ b/drivers/staging/iio/adc/Makefile
@@ -1,17 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O ADC drivers
 #
 
-ad7606-y := ad7606_core.o
-ad7606-$(CONFIG_IIO_BUFFER) += ad7606_ring.o
-ad7606-$(CONFIG_AD7606_IFACE_PARALLEL) += ad7606_par.o
-ad7606-$(CONFIG_AD7606_IFACE_SPI) += ad7606_spi.o
-obj-$(CONFIG_AD7606) += ad7606.o
-
-obj-$(CONFIG_AD7780) += ad7780.o
 obj-$(CONFIG_AD7816) += ad7816.o
-obj-$(CONFIG_AD7192) += ad7192.o
-obj-$(CONFIG_AD7280) += ad7280a.o
-obj-$(CONFIG_LPC32XX_ADC) += lpc32xx_adc.o
-obj-$(CONFIG_MXS_LRADC) += mxs-lradc.o
-obj-$(CONFIG_SPEAR_ADC) += spear_adc.o
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
deleted file mode 100644
index fe56fb6c7d30..000000000000
--- a/drivers/staging/iio/adc/ad7192.c
+++ /dev/null
@@ -1,720 +0,0 @@
-/*
- * AD7190 AD7192 AD7195 SPI ADC driver
- *
- * Copyright 2011-2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/spi/spi.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/trigger.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
-#include <linux/iio/adc/ad_sigma_delta.h>
-
-#include "ad7192.h"
-
-/* Registers */
-#define AD7192_REG_COMM		0 /* Communications Register (WO, 8-bit) */
-#define AD7192_REG_STAT		0 /* Status Register	     (RO, 8-bit) */
-#define AD7192_REG_MODE		1 /* Mode Register	     (RW, 24-bit */
-#define AD7192_REG_CONF		2 /* Configuration Register  (RW, 24-bit) */
-#define AD7192_REG_DATA		3 /* Data Register	     (RO, 24/32-bit) */
-#define AD7192_REG_ID		4 /* ID Register	     (RO, 8-bit) */
-#define AD7192_REG_GPOCON	5 /* GPOCON Register	     (RO, 8-bit) */
-#define AD7192_REG_OFFSET	6 /* Offset Register	     (RW, 16-bit
-				   * (AD7792)/24-bit (AD7192)) */
-#define AD7192_REG_FULLSALE	7 /* Full-Scale Register
-				   * (RW, 16-bit (AD7792)/24-bit (AD7192)) */
-
-/* Communications Register Bit Designations (AD7192_REG_COMM) */
-#define AD7192_COMM_WEN		BIT(7) /* Write Enable */
-#define AD7192_COMM_WRITE	0 /* Write Operation */
-#define AD7192_COMM_READ	BIT(6) /* Read Operation */
-#define AD7192_COMM_ADDR(x)	(((x) & 0x7) << 3) /* Register Address */
-#define AD7192_COMM_CREAD	BIT(2) /* Continuous Read of Data Register */
-
-/* Status Register Bit Designations (AD7192_REG_STAT) */
-#define AD7192_STAT_RDY		BIT(7) /* Ready */
-#define AD7192_STAT_ERR		BIT(6) /* Error (Overrange, Underrange) */
-#define AD7192_STAT_NOREF	BIT(5) /* Error no external reference */
-#define AD7192_STAT_PARITY	BIT(4) /* Parity */
-#define AD7192_STAT_CH3		BIT(2) /* Channel 3 */
-#define AD7192_STAT_CH2		BIT(1) /* Channel 2 */
-#define AD7192_STAT_CH1		BIT(0) /* Channel 1 */
-
-/* Mode Register Bit Designations (AD7192_REG_MODE) */
-#define AD7192_MODE_SEL(x)	(((x) & 0x7) << 21) /* Operation Mode Select */
-#define AD7192_MODE_SEL_MASK	(0x7 << 21) /* Operation Mode Select Mask */
-#define AD7192_MODE_DAT_STA	BIT(20) /* Status Register transmission */
-#define AD7192_MODE_CLKSRC(x)	(((x) & 0x3) << 18) /* Clock Source Select */
-#define AD7192_MODE_SINC3	BIT(15) /* SINC3 Filter Select */
-#define AD7192_MODE_ACX		BIT(14) /* AC excitation enable(AD7195 only)*/
-#define AD7192_MODE_ENPAR	BIT(13) /* Parity Enable */
-#define AD7192_MODE_CLKDIV	BIT(12) /* Clock divide by 2 (AD7190/2 only)*/
-#define AD7192_MODE_SCYCLE	BIT(11) /* Single cycle conversion */
-#define AD7192_MODE_REJ60	BIT(10) /* 50/60Hz notch filter */
-#define AD7192_MODE_RATE(x)	((x) & 0x3FF) /* Filter Update Rate Select */
-
-/* Mode Register: AD7192_MODE_SEL options */
-#define AD7192_MODE_CONT		0 /* Continuous Conversion Mode */
-#define AD7192_MODE_SINGLE		1 /* Single Conversion Mode */
-#define AD7192_MODE_IDLE		2 /* Idle Mode */
-#define AD7192_MODE_PWRDN		3 /* Power-Down Mode */
-#define AD7192_MODE_CAL_INT_ZERO	4 /* Internal Zero-Scale Calibration */
-#define AD7192_MODE_CAL_INT_FULL	5 /* Internal Full-Scale Calibration */
-#define AD7192_MODE_CAL_SYS_ZERO	6 /* System Zero-Scale Calibration */
-#define AD7192_MODE_CAL_SYS_FULL	7 /* System Full-Scale Calibration */
-
-/* Mode Register: AD7192_MODE_CLKSRC options */
-#define AD7192_CLK_EXT_MCLK1_2		0 /* External 4.92 MHz Clock connected
-					   * from MCLK1 to MCLK2 */
-#define AD7192_CLK_EXT_MCLK2		1 /* External Clock applied to MCLK2 */
-#define AD7192_CLK_INT			2 /* Internal 4.92 MHz Clock not
-					   * available at the MCLK2 pin */
-#define AD7192_CLK_INT_CO		3 /* Internal 4.92 MHz Clock available
-					   * at the MCLK2 pin */
-
-
-/* Configuration Register Bit Designations (AD7192_REG_CONF) */
-
-#define AD7192_CONF_CHOP	BIT(23) /* CHOP enable */
-#define AD7192_CONF_REFSEL	BIT(20) /* REFIN1/REFIN2 Reference Select */
-#define AD7192_CONF_CHAN(x)	(((1 << (x)) & 0xFF) << 8) /* Channel select */
-#define AD7192_CONF_CHAN_MASK	(0xFF << 8) /* Channel select mask */
-#define AD7192_CONF_BURN	BIT(7) /* Burnout current enable */
-#define AD7192_CONF_REFDET	BIT(6) /* Reference detect enable */
-#define AD7192_CONF_BUF		BIT(4) /* Buffered Mode Enable */
-#define AD7192_CONF_UNIPOLAR	BIT(3) /* Unipolar/Bipolar Enable */
-#define AD7192_CONF_GAIN(x)	((x) & 0x7) /* Gain Select */
-
-#define AD7192_CH_AIN1P_AIN2M	0 /* AIN1(+) - AIN2(-) */
-#define AD7192_CH_AIN3P_AIN4M	1 /* AIN3(+) - AIN4(-) */
-#define AD7192_CH_TEMP		2 /* Temp Sensor */
-#define AD7192_CH_AIN2P_AIN2M	3 /* AIN2(+) - AIN2(-) */
-#define AD7192_CH_AIN1		4 /* AIN1 - AINCOM */
-#define AD7192_CH_AIN2		5 /* AIN2 - AINCOM */
-#define AD7192_CH_AIN3		6 /* AIN3 - AINCOM */
-#define AD7192_CH_AIN4		7 /* AIN4 - AINCOM */
-
-/* ID Register Bit Designations (AD7192_REG_ID) */
-#define ID_AD7190		0x4
-#define ID_AD7192		0x0
-#define ID_AD7195		0x6
-#define AD7192_ID_MASK		0x0F
-
-/* GPOCON Register Bit Designations (AD7192_REG_GPOCON) */
-#define AD7192_GPOCON_BPDSW	BIT(6) /* Bridge power-down switch enable */
-#define AD7192_GPOCON_GP32EN	BIT(5) /* Digital Output P3 and P2 enable */
-#define AD7192_GPOCON_GP10EN	BIT(4) /* Digital Output P1 and P0 enable */
-#define AD7192_GPOCON_P3DAT	BIT(3) /* P3 state */
-#define AD7192_GPOCON_P2DAT	BIT(2) /* P2 state */
-#define AD7192_GPOCON_P1DAT	BIT(1) /* P1 state */
-#define AD7192_GPOCON_P0DAT	BIT(0) /* P0 state */
-
-#define AD7192_INT_FREQ_MHz	4915200
-
-/* NOTE:
- * The AD7190/2/5 features a dual use data out ready DOUT/RDY output.
- * In order to avoid contentions on the SPI bus, it's therefore necessary
- * to use spi bus locking.
- *
- * The DOUT/RDY output must also be wired to an interrupt capable GPIO.
- */
-
-struct ad7192_state {
-	struct regulator		*reg;
-	u16				int_vref_mv;
-	u32				mclk;
-	u32				f_order;
-	u32				mode;
-	u32				conf;
-	u32				scale_avail[8][2];
-	u8				gpocon;
-	u8				devid;
-
-	struct ad_sigma_delta		sd;
-};
-
-static struct ad7192_state *ad_sigma_delta_to_ad7192(struct ad_sigma_delta *sd)
-{
-	return container_of(sd, struct ad7192_state, sd);
-}
-
-static int ad7192_set_channel(struct ad_sigma_delta *sd, unsigned int channel)
-{
-	struct ad7192_state *st = ad_sigma_delta_to_ad7192(sd);
-
-	st->conf &= ~AD7192_CONF_CHAN_MASK;
-	st->conf |= AD7192_CONF_CHAN(channel);
-
-	return ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, st->conf);
-}
-
-static int ad7192_set_mode(struct ad_sigma_delta *sd,
-			   enum ad_sigma_delta_mode mode)
-{
-	struct ad7192_state *st = ad_sigma_delta_to_ad7192(sd);
-
-	st->mode &= ~AD7192_MODE_SEL_MASK;
-	st->mode |= AD7192_MODE_SEL(mode);
-
-	return ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
-}
-
-static const struct ad_sigma_delta_info ad7192_sigma_delta_info = {
-	.set_channel = ad7192_set_channel,
-	.set_mode = ad7192_set_mode,
-	.has_registers = true,
-	.addr_shift = 3,
-	.read_mask = BIT(6),
-};
-
-static const struct ad_sd_calib_data ad7192_calib_arr[8] = {
-	{AD7192_MODE_CAL_INT_ZERO, AD7192_CH_AIN1},
-	{AD7192_MODE_CAL_INT_FULL, AD7192_CH_AIN1},
-	{AD7192_MODE_CAL_INT_ZERO, AD7192_CH_AIN2},
-	{AD7192_MODE_CAL_INT_FULL, AD7192_CH_AIN2},
-	{AD7192_MODE_CAL_INT_ZERO, AD7192_CH_AIN3},
-	{AD7192_MODE_CAL_INT_FULL, AD7192_CH_AIN3},
-	{AD7192_MODE_CAL_INT_ZERO, AD7192_CH_AIN4},
-	{AD7192_MODE_CAL_INT_FULL, AD7192_CH_AIN4}
-};
-
-static int ad7192_calibrate_all(struct ad7192_state *st)
-{
-		return ad_sd_calibrate_all(&st->sd, ad7192_calib_arr,
-				ARRAY_SIZE(ad7192_calib_arr));
-}
-
-static int ad7192_setup(struct ad7192_state *st,
-	const struct ad7192_platform_data *pdata)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
-	unsigned long long scale_uv;
-	int i, ret, id;
-	u8 ones[6];
-
-	/* reset the serial interface */
-	memset(&ones, 0xFF, 6);
-	ret = spi_write(st->sd.spi, &ones, 6);
-	if (ret < 0)
-		goto out;
-	usleep_range(500, 1000); /* Wait for at least 500us */
-
-	/* write/read test for device presence */
-	ret = ad_sd_read_reg(&st->sd, AD7192_REG_ID, 1, &id);
-	if (ret)
-		goto out;
-
-	id &= AD7192_ID_MASK;
-
-	if (id != st->devid)
-		dev_warn(&st->sd.spi->dev, "device ID query failed (0x%X)\n",
-			id);
-
-	switch (pdata->clock_source_sel) {
-	case AD7192_CLK_EXT_MCLK1_2:
-	case AD7192_CLK_EXT_MCLK2:
-		st->mclk = AD7192_INT_FREQ_MHz;
-		break;
-	case AD7192_CLK_INT:
-	case AD7192_CLK_INT_CO:
-		if (pdata->ext_clk_Hz)
-			st->mclk = pdata->ext_clk_Hz;
-		else
-			st->mclk = AD7192_INT_FREQ_MHz;
-			break;
-	default:
-		ret = -EINVAL;
-		goto out;
-	}
-
-	st->mode = AD7192_MODE_SEL(AD7192_MODE_IDLE) |
-		AD7192_MODE_CLKSRC(pdata->clock_source_sel) |
-		AD7192_MODE_RATE(480);
-
-	st->conf = AD7192_CONF_GAIN(0);
-
-	if (pdata->rej60_en)
-		st->mode |= AD7192_MODE_REJ60;
-
-	if (pdata->sinc3_en)
-		st->mode |= AD7192_MODE_SINC3;
-
-	if (pdata->refin2_en && (st->devid != ID_AD7195))
-		st->conf |= AD7192_CONF_REFSEL;
-
-	if (pdata->chop_en) {
-		st->conf |= AD7192_CONF_CHOP;
-		if (pdata->sinc3_en)
-			st->f_order = 3; /* SINC 3rd order */
-		else
-			st->f_order = 4; /* SINC 4th order */
-	} else {
-		st->f_order = 1;
-	}
-
-	if (pdata->buf_en)
-		st->conf |= AD7192_CONF_BUF;
-
-	if (pdata->unipolar_en)
-		st->conf |= AD7192_CONF_UNIPOLAR;
-
-	if (pdata->burnout_curr_en)
-		st->conf |= AD7192_CONF_BURN;
-
-	ret = ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
-	if (ret)
-		goto out;
-
-	ret = ad_sd_write_reg(&st->sd, AD7192_REG_CONF, 3, st->conf);
-	if (ret)
-		goto out;
-
-	ret = ad7192_calibrate_all(st);
-	if (ret)
-		goto out;
-
-	/* Populate available ADC input ranges */
-	for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++) {
-		scale_uv = ((u64)st->int_vref_mv * 100000000)
-			>> (indio_dev->channels[0].scan_type.realbits -
-			((st->conf & AD7192_CONF_UNIPOLAR) ? 0 : 1));
-		scale_uv >>= i;
-
-		st->scale_avail[i][1] = do_div(scale_uv, 100000000) * 10;
-		st->scale_avail[i][0] = scale_uv;
-	}
-
-	return 0;
-out:
-	dev_err(&st->sd.spi->dev, "setup failed\n");
-	return ret;
-}
-
-static ssize_t ad7192_read_frequency(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7192_state *st = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", st->mclk /
-			(st->f_order * 1024 * AD7192_MODE_RATE(st->mode)));
-}
-
-static ssize_t ad7192_write_frequency(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7192_state *st = iio_priv(indio_dev);
-	unsigned long lval;
-	int div, ret;
-
-	ret = kstrtoul(buf, 10, &lval);
-	if (ret)
-		return ret;
-	if (lval == 0)
-		return -EINVAL;
-
-	mutex_lock(&indio_dev->mlock);
-	if (iio_buffer_enabled(indio_dev)) {
-		mutex_unlock(&indio_dev->mlock);
-		return -EBUSY;
-	}
-
-	div = st->mclk / (lval * st->f_order * 1024);
-	if (div < 1 || div > 1023) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	st->mode &= ~AD7192_MODE_RATE(-1);
-	st->mode |= AD7192_MODE_RATE(div);
-	ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-		ad7192_read_frequency,
-		ad7192_write_frequency);
-
-static ssize_t ad7192_show_scale_available(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7192_state *st = iio_priv(indio_dev);
-	int i, len = 0;
-
-	for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
-		len += sprintf(buf + len, "%d.%09u ", st->scale_avail[i][0],
-			       st->scale_avail[i][1]);
-
-	len += sprintf(buf + len, "\n");
-
-	return len;
-}
-
-static IIO_DEVICE_ATTR_NAMED(in_v_m_v_scale_available,
-			     in_voltage-voltage_scale_available,
-			     S_IRUGO, ad7192_show_scale_available, NULL, 0);
-
-static IIO_DEVICE_ATTR(in_voltage_scale_available, S_IRUGO,
-		       ad7192_show_scale_available, NULL, 0);
-
-static ssize_t ad7192_show_ac_excitation(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7192_state *st = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", !!(st->mode & AD7192_MODE_ACX));
-}
-
-static ssize_t ad7192_show_bridge_switch(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7192_state *st = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", !!(st->gpocon & AD7192_GPOCON_BPDSW));
-}
-
-static ssize_t ad7192_set(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7192_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	bool val;
-
-	ret = strtobool(buf, &val);
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&indio_dev->mlock);
-	if (iio_buffer_enabled(indio_dev)) {
-		mutex_unlock(&indio_dev->mlock);
-		return -EBUSY;
-	}
-
-	switch ((u32) this_attr->address) {
-	case AD7192_REG_GPOCON:
-		if (val)
-			st->gpocon |= AD7192_GPOCON_BPDSW;
-		else
-			st->gpocon &= ~AD7192_GPOCON_BPDSW;
-
-		ad_sd_write_reg(&st->sd, AD7192_REG_GPOCON, 1, st->gpocon);
-		break;
-	case AD7192_REG_MODE:
-		if (val)
-			st->mode |= AD7192_MODE_ACX;
-		else
-			st->mode &= ~AD7192_MODE_ACX;
-
-		ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static IIO_DEVICE_ATTR(bridge_switch_en, S_IRUGO | S_IWUSR,
-		       ad7192_show_bridge_switch, ad7192_set,
-		       AD7192_REG_GPOCON);
-
-static IIO_DEVICE_ATTR(ac_excitation_en, S_IRUGO | S_IWUSR,
-		       ad7192_show_ac_excitation, ad7192_set,
-		       AD7192_REG_MODE);
-
-static struct attribute *ad7192_attributes[] = {
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_dev_attr_in_v_m_v_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage_scale_available.dev_attr.attr,
-	&iio_dev_attr_bridge_switch_en.dev_attr.attr,
-	&iio_dev_attr_ac_excitation_en.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group ad7192_attribute_group = {
-	.attrs = ad7192_attributes,
-};
-
-static struct attribute *ad7195_attributes[] = {
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_dev_attr_in_v_m_v_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage_scale_available.dev_attr.attr,
-	&iio_dev_attr_bridge_switch_en.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group ad7195_attribute_group = {
-	.attrs = ad7195_attributes,
-};
-
-static unsigned int ad7192_get_temp_scale(bool unipolar)
-{
-	return unipolar ? 2815 * 2 : 2815;
-}
-
-static int ad7192_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long m)
-{
-	struct ad7192_state *st = iio_priv(indio_dev);
-	bool unipolar = !!(st->conf & AD7192_CONF_UNIPOLAR);
-
-	switch (m) {
-	case IIO_CHAN_INFO_RAW:
-		return ad_sigma_delta_single_conversion(indio_dev, chan, val);
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			mutex_lock(&indio_dev->mlock);
-			*val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
-			*val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
-			mutex_unlock(&indio_dev->mlock);
-			return IIO_VAL_INT_PLUS_NANO;
-		case IIO_TEMP:
-			*val = 0;
-			*val2 = 1000000000 / ad7192_get_temp_scale(unipolar);
-			return IIO_VAL_INT_PLUS_NANO;
-		default:
-			return -EINVAL;
-		}
-	case IIO_CHAN_INFO_OFFSET:
-		if (!unipolar)
-			*val = -(1 << (chan->scan_type.realbits - 1));
-		else
-			*val = 0;
-		/* Kelvin to Celsius */
-		if (chan->type == IIO_TEMP)
-			*val -= 273 * ad7192_get_temp_scale(unipolar);
-		return IIO_VAL_INT;
-	}
-
-	return -EINVAL;
-}
-
-static int ad7192_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct ad7192_state *st = iio_priv(indio_dev);
-	int ret, i;
-	unsigned int tmp;
-
-	mutex_lock(&indio_dev->mlock);
-	if (iio_buffer_enabled(indio_dev)) {
-		mutex_unlock(&indio_dev->mlock);
-		return -EBUSY;
-	}
-
-	switch (mask) {
-	case IIO_CHAN_INFO_SCALE:
-		ret = -EINVAL;
-		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
-			if (val2 == st->scale_avail[i][1]) {
-				ret = 0;
-				tmp = st->conf;
-				st->conf &= ~AD7192_CONF_GAIN(-1);
-				st->conf |= AD7192_CONF_GAIN(i);
-				if (tmp == st->conf)
-					break;
-				ad_sd_write_reg(&st->sd, AD7192_REG_CONF,
-						 3, st->conf);
-				ad7192_calibrate_all(st);
-				break;
-			}
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret;
-}
-
-static int ad7192_write_raw_get_fmt(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       long mask)
-{
-	return IIO_VAL_INT_PLUS_NANO;
-}
-
-static const struct iio_info ad7192_info = {
-	.read_raw = &ad7192_read_raw,
-	.write_raw = &ad7192_write_raw,
-	.write_raw_get_fmt = &ad7192_write_raw_get_fmt,
-	.attrs = &ad7192_attribute_group,
-	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
-};
-
-static const struct iio_info ad7195_info = {
-	.read_raw = &ad7192_read_raw,
-	.write_raw = &ad7192_write_raw,
-	.write_raw_get_fmt = &ad7192_write_raw_get_fmt,
-	.attrs = &ad7195_attribute_group,
-	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
-};
-
-static const struct iio_chan_spec ad7192_channels[] = {
-	AD_SD_DIFF_CHANNEL(0, 1, 2, AD7192_CH_AIN1P_AIN2M, 24, 32, 0),
-	AD_SD_DIFF_CHANNEL(1, 3, 4, AD7192_CH_AIN3P_AIN4M, 24, 32, 0),
-	AD_SD_TEMP_CHANNEL(2, AD7192_CH_TEMP, 24, 32, 0),
-	AD_SD_SHORTED_CHANNEL(3, 2, AD7192_CH_AIN2P_AIN2M, 24, 32, 0),
-	AD_SD_CHANNEL(4, 1, AD7192_CH_AIN1, 24, 32, 0),
-	AD_SD_CHANNEL(5, 2, AD7192_CH_AIN2, 24, 32, 0),
-	AD_SD_CHANNEL(6, 3, AD7192_CH_AIN3, 24, 32, 0),
-	AD_SD_CHANNEL(7, 4, AD7192_CH_AIN4, 24, 32, 0),
-	IIO_CHAN_SOFT_TIMESTAMP(8),
-};
-
-static int ad7192_probe(struct spi_device *spi)
-{
-	const struct ad7192_platform_data *pdata = spi->dev.platform_data;
-	struct ad7192_state *st;
-	struct iio_dev *indio_dev;
-	int ret, voltage_uv = 0;
-
-	if (!pdata) {
-		dev_err(&spi->dev, "no platform data?\n");
-		return -ENODEV;
-	}
-
-	if (!spi->irq) {
-		dev_err(&spi->dev, "no IRQ?\n");
-		return -ENODEV;
-	}
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL)
-		return -ENOMEM;
-
-	st = iio_priv(indio_dev);
-
-	st->reg = devm_regulator_get(&spi->dev, "vcc");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ret;
-
-		voltage_uv = regulator_get_voltage(st->reg);
-	}
-
-	if (pdata && pdata->vref_mv)
-		st->int_vref_mv = pdata->vref_mv;
-	else if (voltage_uv)
-		st->int_vref_mv = voltage_uv / 1000;
-	else
-		dev_warn(&spi->dev, "reference voltage undefined\n");
-
-	spi_set_drvdata(spi, indio_dev);
-	st->devid = spi_get_device_id(spi)->driver_data;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->name = spi_get_device_id(spi)->name;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = ad7192_channels;
-	indio_dev->num_channels = ARRAY_SIZE(ad7192_channels);
-	if (st->devid == ID_AD7195)
-		indio_dev->info = &ad7195_info;
-	else
-		indio_dev->info = &ad7192_info;
-
-	ad_sd_init(&st->sd, indio_dev, spi, &ad7192_sigma_delta_info);
-
-	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
-	if (ret)
-		goto error_disable_reg;
-
-	ret = ad7192_setup(st, pdata);
-	if (ret)
-		goto error_remove_trigger;
-
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		goto error_remove_trigger;
-	return 0;
-
-error_remove_trigger:
-	ad_sd_cleanup_buffer_and_trigger(indio_dev);
-error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return ret;
-}
-
-static int ad7192_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct ad7192_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	ad_sd_cleanup_buffer_and_trigger(indio_dev);
-
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return 0;
-}
-
-static const struct spi_device_id ad7192_id[] = {
-	{"ad7190", ID_AD7190},
-	{"ad7192", ID_AD7192},
-	{"ad7195", ID_AD7195},
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ad7192_id);
-
-static struct spi_driver ad7192_driver = {
-	.driver = {
-		.name	= "ad7192",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= ad7192_probe,
-	.remove		= ad7192_remove,
-	.id_table	= ad7192_id,
-};
-module_spi_driver(ad7192_driver);
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7190, AD7192, AD7195 ADC");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7192.h b/drivers/staging/iio/adc/ad7192.h
deleted file mode 100644
index a0a5b61a41f1..000000000000
--- a/drivers/staging/iio/adc/ad7192.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * AD7190 AD7192 AD7195 SPI ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-#ifndef IIO_ADC_AD7192_H_
-#define IIO_ADC_AD7192_H_
-
-/*
- * TODO: struct ad7192_platform_data needs to go into include/linux/iio
- */
-
-/**
- * struct ad7192_platform_data - platform/board specific information
- * @vref_mv:		the external reference voltage in millivolt
- * @clock_source_sel:	[0..3]
- *			0 External 4.92 MHz clock connected from MCLK1 to MCLK2
- *			1 External Clock applied to MCLK2
- *			2 Internal 4.92 MHz Clock not available at the MCLK2 pin
- *			3 Internal 4.92 MHz Clock available at the MCLK2 pin
- * @ext_clk_Hz:		the external clock frequency in Hz, if not set
- *			the driver uses the internal clock (16.776 MHz)
- * @refin2_en:		REFIN1/REFIN2 Reference Select (AD7190/2 only)
- * @rej60_en:		50/60Hz notch filter enable
- * @sinc3_en:		SINC3 filter enable (default SINC4)
- * @chop_en:		CHOP mode enable
- * @buf_en:		buffered input mode enable
- * @unipolar_en:	unipolar mode enable
- * @burnout_curr_en:	constant current generators on AIN(+|-) enable
- */
-
-struct ad7192_platform_data {
-	u16		vref_mv;
-	u8		clock_source_sel;
-	u32		ext_clk_Hz;
-	bool		refin2_en;
-	bool		rej60_en;
-	bool		sinc3_en;
-	bool		chop_en;
-	bool		buf_en;
-	bool		unipolar_en;
-	bool		burnout_curr_en;
-};
-
-#endif /* IIO_ADC_AD7192_H_ */
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
deleted file mode 100644
index d98e229c46bf..000000000000
--- a/drivers/staging/iio/adc/ad7280a.c
+++ /dev/null
@@ -1,985 +0,0 @@
-/*
- * AD7280A Lithium Ion Battery Monitoring System
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/spi/spi.h>
-#include <linux/err.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-
-#include "ad7280a.h"
-
-/* Registers */
-#define AD7280A_CELL_VOLTAGE_1		0x0  /* D11 to D0, Read only */
-#define AD7280A_CELL_VOLTAGE_2		0x1  /* D11 to D0, Read only */
-#define AD7280A_CELL_VOLTAGE_3		0x2  /* D11 to D0, Read only */
-#define AD7280A_CELL_VOLTAGE_4		0x3  /* D11 to D0, Read only */
-#define AD7280A_CELL_VOLTAGE_5		0x4  /* D11 to D0, Read only */
-#define AD7280A_CELL_VOLTAGE_6		0x5  /* D11 to D0, Read only */
-#define AD7280A_AUX_ADC_1		0x6  /* D11 to D0, Read only */
-#define AD7280A_AUX_ADC_2		0x7  /* D11 to D0, Read only */
-#define AD7280A_AUX_ADC_3		0x8  /* D11 to D0, Read only */
-#define AD7280A_AUX_ADC_4		0x9  /* D11 to D0, Read only */
-#define AD7280A_AUX_ADC_5		0xA  /* D11 to D0, Read only */
-#define AD7280A_AUX_ADC_6		0xB  /* D11 to D0, Read only */
-#define AD7280A_SELF_TEST		0xC  /* D11 to D0, Read only */
-#define AD7280A_CONTROL_HB		0xD  /* D15 to D8, Read/write */
-#define AD7280A_CONTROL_LB		0xE  /* D7 to D0, Read/write */
-#define AD7280A_CELL_OVERVOLTAGE	0xF  /* D7 to D0, Read/write */
-#define AD7280A_CELL_UNDERVOLTAGE	0x10 /* D7 to D0, Read/write */
-#define AD7280A_AUX_ADC_OVERVOLTAGE	0x11 /* D7 to D0, Read/write */
-#define AD7280A_AUX_ADC_UNDERVOLTAGE	0x12 /* D7 to D0, Read/write */
-#define AD7280A_ALERT			0x13 /* D7 to D0, Read/write */
-#define AD7280A_CELL_BALANCE		0x14 /* D7 to D0, Read/write */
-#define AD7280A_CB1_TIMER		0x15 /* D7 to D0, Read/write */
-#define AD7280A_CB2_TIMER		0x16 /* D7 to D0, Read/write */
-#define AD7280A_CB3_TIMER		0x17 /* D7 to D0, Read/write */
-#define AD7280A_CB4_TIMER		0x18 /* D7 to D0, Read/write */
-#define AD7280A_CB5_TIMER		0x19 /* D7 to D0, Read/write */
-#define AD7280A_CB6_TIMER		0x1A /* D7 to D0, Read/write */
-#define AD7280A_PD_TIMER		0x1B /* D7 to D0, Read/write */
-#define AD7280A_READ			0x1C /* D7 to D0, Read/write */
-#define AD7280A_CNVST_CONTROL		0x1D /* D7 to D0, Read/write */
-
-/* Bits and Masks */
-#define AD7280A_CTRL_HB_CONV_INPUT_ALL			0
-#define AD7280A_CTRL_HB_CONV_INPUT_6CELL_AUX1_3_4	BIT(6)
-#define AD7280A_CTRL_HB_CONV_INPUT_6CELL		BIT(7)
-#define AD7280A_CTRL_HB_CONV_INPUT_SELF_TEST		(BIT(7) | BIT(6))
-#define AD7280A_CTRL_HB_CONV_RES_READ_ALL		0
-#define AD7280A_CTRL_HB_CONV_RES_READ_6CELL_AUX1_3_4	BIT(4)
-#define AD7280A_CTRL_HB_CONV_RES_READ_6CELL		BIT(5)
-#define AD7280A_CTRL_HB_CONV_RES_READ_NO		(BIT(5) | BIT(4))
-#define AD7280A_CTRL_HB_CONV_START_CNVST		0
-#define AD7280A_CTRL_HB_CONV_START_CS			BIT(3)
-#define AD7280A_CTRL_HB_CONV_AVG_DIS			0
-#define AD7280A_CTRL_HB_CONV_AVG_2			BIT(1)
-#define AD7280A_CTRL_HB_CONV_AVG_4			BIT(2)
-#define AD7280A_CTRL_HB_CONV_AVG_8			(BIT(2) | BIT(1))
-#define AD7280A_CTRL_HB_CONV_AVG(x)			((x) << 1)
-#define AD7280A_CTRL_HB_PWRDN_SW			BIT(0)
-
-#define AD7280A_CTRL_LB_SWRST				BIT(7)
-#define AD7280A_CTRL_LB_ACQ_TIME_400ns			0
-#define AD7280A_CTRL_LB_ACQ_TIME_800ns			BIT(5)
-#define AD7280A_CTRL_LB_ACQ_TIME_1200ns			BIT(6)
-#define AD7280A_CTRL_LB_ACQ_TIME_1600ns			(BIT(6) | BIT(5))
-#define AD7280A_CTRL_LB_ACQ_TIME(x)			((x) << 5)
-#define AD7280A_CTRL_LB_MUST_SET			BIT(4)
-#define AD7280A_CTRL_LB_THERMISTOR_EN			BIT(3)
-#define AD7280A_CTRL_LB_LOCK_DEV_ADDR			BIT(2)
-#define AD7280A_CTRL_LB_INC_DEV_ADDR			BIT(1)
-#define AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN		BIT(0)
-
-#define AD7280A_ALERT_GEN_STATIC_HIGH			BIT(6)
-#define AD7280A_ALERT_RELAY_SIG_CHAIN_DOWN		(BIT(7) | BIT(6))
-
-#define AD7280A_ALL_CELLS				(0xAD << 16)
-
-#define AD7280A_MAX_SPI_CLK_Hz		700000 /* < 1MHz */
-#define AD7280A_MAX_CHAIN		8
-#define AD7280A_CELLS_PER_DEV		6
-#define AD7280A_BITS			12
-#define AD7280A_NUM_CH			(AD7280A_AUX_ADC_6 - \
-					AD7280A_CELL_VOLTAGE_1 + 1)
-
-#define AD7280A_DEVADDR_MASTER		0
-#define AD7280A_DEVADDR_ALL		0x1F
-/* 5-bit device address is sent LSB first */
-#define AD7280A_DEVADDR(addr)	(((addr & 0x1) << 4) | ((addr & 0x2) << 3) | \
-				(addr & 0x4) | ((addr & 0x8) >> 3) | \
-				((addr & 0x10) >> 4))
-
-/* During a read a valid write is mandatory.
- * So writing to the highest available address (Address 0x1F)
- * and setting the address all parts bit to 0 is recommended
- * So the TXVAL is AD7280A_DEVADDR_ALL + CRC
- */
-#define AD7280A_READ_TXVAL	0xF800030A
-
-/*
- * AD7280 CRC
- *
- * P(x) = x^8 + x^5 + x^3 + x^2 + x^1 + x^0 = 0b100101111 => 0x2F
- */
-#define POLYNOM		0x2F
-#define POLYNOM_ORDER	8
-#define HIGHBIT		(1 << (POLYNOM_ORDER - 1))
-
-struct ad7280_state {
-	struct spi_device		*spi;
-	struct iio_chan_spec		*channels;
-	struct iio_dev_attr		*iio_attr;
-	int				slave_num;
-	int				scan_cnt;
-	int				readback_delay_us;
-	unsigned char			crc_tab[256];
-	unsigned char			ctrl_hb;
-	unsigned char			ctrl_lb;
-	unsigned char			cell_threshhigh;
-	unsigned char			cell_threshlow;
-	unsigned char			aux_threshhigh;
-	unsigned char			aux_threshlow;
-	unsigned char			cb_mask[AD7280A_MAX_CHAIN];
-
-	__be32				buf[2] ____cacheline_aligned;
-};
-
-static void ad7280_crc8_build_table(unsigned char *crc_tab)
-{
-	unsigned char bit, crc;
-	int cnt, i;
-
-	for (cnt = 0; cnt < 256; cnt++) {
-		crc = cnt;
-		for (i = 0; i < 8; i++) {
-			bit = crc & HIGHBIT;
-			crc <<= 1;
-			if (bit)
-				crc ^= POLYNOM;
-		}
-		crc_tab[cnt] = crc;
-	}
-}
-
-static unsigned char ad7280_calc_crc8(unsigned char *crc_tab, unsigned val)
-{
-	unsigned char crc;
-
-	crc = crc_tab[val >> 16 & 0xFF];
-	crc = crc_tab[crc ^ (val >> 8 & 0xFF)];
-
-	return  crc ^ (val & 0xFF);
-}
-
-static int ad7280_check_crc(struct ad7280_state *st, unsigned val)
-{
-	unsigned char crc = ad7280_calc_crc8(st->crc_tab, val >> 10);
-
-	if (crc != ((val >> 2) & 0xFF))
-		return -EIO;
-
-	return 0;
-}
-
-/* After initiating a conversion sequence we need to wait until the
- * conversion is done. The delay is typically in the range of 15..30 us
- * however depending an the number of devices in the daisy chain and the
- * number of averages taken, conversion delays and acquisition time options
- * it may take up to 250us, in this case we better sleep instead of busy
- * wait.
- */
-
-static void ad7280_delay(struct ad7280_state *st)
-{
-	if (st->readback_delay_us < 50)
-		udelay(st->readback_delay_us);
-	else
-		usleep_range(250, 500);
-}
-
-static int __ad7280_read32(struct ad7280_state *st, unsigned *val)
-{
-	int ret;
-	struct spi_transfer t = {
-		.tx_buf	= &st->buf[0],
-		.rx_buf = &st->buf[1],
-		.len = 4,
-	};
-
-	st->buf[0] = cpu_to_be32(AD7280A_READ_TXVAL);
-
-	ret = spi_sync_transfer(st->spi, &t, 1);
-	if (ret)
-		return ret;
-
-	*val = be32_to_cpu(st->buf[1]);
-
-	return 0;
-}
-
-static int ad7280_write(struct ad7280_state *st, unsigned devaddr,
-			unsigned addr, bool all, unsigned val)
-{
-	unsigned reg = (devaddr << 27 | addr << 21 |
-			(val & 0xFF) << 13 | all << 12);
-
-	reg |= ad7280_calc_crc8(st->crc_tab, reg >> 11) << 3 | 0x2;
-	st->buf[0] = cpu_to_be32(reg);
-
-	return spi_write(st->spi, &st->buf[0], 4);
-}
-
-static int ad7280_read(struct ad7280_state *st, unsigned devaddr,
-			unsigned addr)
-{
-	int ret;
-	unsigned tmp;
-
-	/* turns off the read operation on all parts */
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
-			AD7280A_CTRL_HB_CONV_INPUT_ALL |
-			AD7280A_CTRL_HB_CONV_RES_READ_NO |
-			st->ctrl_hb);
-	if (ret)
-		return ret;
-
-	/* turns on the read operation on the addressed part */
-	ret = ad7280_write(st, devaddr, AD7280A_CONTROL_HB, 0,
-			AD7280A_CTRL_HB_CONV_INPUT_ALL |
-			AD7280A_CTRL_HB_CONV_RES_READ_ALL |
-			st->ctrl_hb);
-	if (ret)
-		return ret;
-
-	/* Set register address on the part to be read from */
-	ret = ad7280_write(st, devaddr, AD7280A_READ, 0, addr << 2);
-	if (ret)
-		return ret;
-
-	__ad7280_read32(st, &tmp);
-
-	if (ad7280_check_crc(st, tmp))
-		return -EIO;
-
-	if (((tmp >> 27) != devaddr) || (((tmp >> 21) & 0x3F) != addr))
-		return -EFAULT;
-
-	return (tmp >> 13) & 0xFF;
-}
-
-static int ad7280_read_channel(struct ad7280_state *st, unsigned devaddr,
-			       unsigned addr)
-{
-	int ret;
-	unsigned tmp;
-
-	ret = ad7280_write(st, devaddr, AD7280A_READ, 0, addr << 2);
-	if (ret)
-		return ret;
-
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
-			AD7280A_CTRL_HB_CONV_INPUT_ALL |
-			AD7280A_CTRL_HB_CONV_RES_READ_NO |
-			st->ctrl_hb);
-	if (ret)
-		return ret;
-
-	ret = ad7280_write(st, devaddr, AD7280A_CONTROL_HB, 0,
-			AD7280A_CTRL_HB_CONV_INPUT_ALL |
-			AD7280A_CTRL_HB_CONV_RES_READ_ALL |
-			AD7280A_CTRL_HB_CONV_START_CS |
-			st->ctrl_hb);
-	if (ret)
-		return ret;
-
-	ad7280_delay(st);
-
-	__ad7280_read32(st, &tmp);
-
-	if (ad7280_check_crc(st, tmp))
-		return -EIO;
-
-	if (((tmp >> 27) != devaddr) || (((tmp >> 23) & 0xF) != addr))
-		return -EFAULT;
-
-	return (tmp >> 11) & 0xFFF;
-}
-
-static int ad7280_read_all_channels(struct ad7280_state *st, unsigned cnt,
-			     unsigned *array)
-{
-	int i, ret;
-	unsigned tmp, sum = 0;
-
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_READ, 1,
-			   AD7280A_CELL_VOLTAGE_1 << 2);
-	if (ret)
-		return ret;
-
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
-			AD7280A_CTRL_HB_CONV_INPUT_ALL |
-			AD7280A_CTRL_HB_CONV_RES_READ_ALL |
-			AD7280A_CTRL_HB_CONV_START_CS |
-			st->ctrl_hb);
-	if (ret)
-		return ret;
-
-	ad7280_delay(st);
-
-	for (i = 0; i < cnt; i++) {
-		__ad7280_read32(st, &tmp);
-
-		if (ad7280_check_crc(st, tmp))
-			return -EIO;
-
-		if (array)
-			array[i] = tmp;
-		/* only sum cell voltages */
-		if (((tmp >> 23) & 0xF) <= AD7280A_CELL_VOLTAGE_6)
-			sum += ((tmp >> 11) & 0xFFF);
-	}
-
-	return sum;
-}
-
-static int ad7280_chain_setup(struct ad7280_state *st)
-{
-	unsigned val, n;
-	int ret;
-
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_LB, 1,
-			AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN |
-			AD7280A_CTRL_LB_LOCK_DEV_ADDR |
-			AD7280A_CTRL_LB_MUST_SET |
-			AD7280A_CTRL_LB_SWRST |
-			st->ctrl_lb);
-	if (ret)
-		return ret;
-
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_LB, 1,
-			AD7280A_CTRL_LB_DAISY_CHAIN_RB_EN |
-			AD7280A_CTRL_LB_LOCK_DEV_ADDR |
-			AD7280A_CTRL_LB_MUST_SET |
-			st->ctrl_lb);
-	if (ret)
-		return ret;
-
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_READ, 1,
-			AD7280A_CONTROL_LB << 2);
-	if (ret)
-		return ret;
-
-	for (n = 0; n <= AD7280A_MAX_CHAIN; n++) {
-		__ad7280_read32(st, &val);
-		if (val == 0)
-			return n - 1;
-
-		if (ad7280_check_crc(st, val))
-			return -EIO;
-
-		if (n != AD7280A_DEVADDR(val >> 27))
-			return -EIO;
-	}
-
-	return -EFAULT;
-}
-
-static ssize_t ad7280_show_balance_sw(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7280_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	return sprintf(buf, "%d\n",
-		       !!(st->cb_mask[this_attr->address >> 8] &
-		       (1 << ((this_attr->address & 0xFF) + 2))));
-}
-
-static ssize_t ad7280_store_balance_sw(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7280_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	bool readin;
-	int ret;
-	unsigned devaddr, ch;
-
-	ret = strtobool(buf, &readin);
-	if (ret)
-		return ret;
-
-	devaddr = this_attr->address >> 8;
-	ch = this_attr->address & 0xFF;
-
-	mutex_lock(&indio_dev->mlock);
-	if (readin)
-		st->cb_mask[devaddr] |= 1 << (ch + 2);
-	else
-		st->cb_mask[devaddr] &= ~(1 << (ch + 2));
-
-	ret = ad7280_write(st, devaddr, AD7280A_CELL_BALANCE,
-			   0, st->cb_mask[devaddr]);
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static ssize_t ad7280_show_balance_timer(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7280_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	unsigned msecs;
-
-	mutex_lock(&indio_dev->mlock);
-	ret = ad7280_read(st, this_attr->address >> 8,
-			this_attr->address & 0xFF);
-	mutex_unlock(&indio_dev->mlock);
-
-	if (ret < 0)
-		return ret;
-
-	msecs = (ret >> 3) * 71500;
-
-	return sprintf(buf, "%u\n", msecs);
-}
-
-static ssize_t ad7280_store_balance_timer(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7280_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	unsigned long val;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	val /= 71500;
-
-	if (val > 31)
-		return -EINVAL;
-
-	mutex_lock(&indio_dev->mlock);
-	ret = ad7280_write(st, this_attr->address >> 8,
-			   this_attr->address & 0xFF,
-			   0, (val & 0x1F) << 3);
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static struct attribute *ad7280_attributes[AD7280A_MAX_CHAIN *
-					   AD7280A_CELLS_PER_DEV * 2 + 1];
-
-static struct attribute_group ad7280_attrs_group = {
-	.attrs = ad7280_attributes,
-};
-
-static int ad7280_channel_init(struct ad7280_state *st)
-{
-	int dev, ch, cnt;
-
-	st->channels = kcalloc((st->slave_num + 1) * 12 + 2,
-			       sizeof(*st->channels), GFP_KERNEL);
-	if (st->channels == NULL)
-		return -ENOMEM;
-
-	for (dev = 0, cnt = 0; dev <= st->slave_num; dev++)
-		for (ch = AD7280A_CELL_VOLTAGE_1; ch <= AD7280A_AUX_ADC_6; ch++,
-			cnt++) {
-			if (ch < AD7280A_AUX_ADC_1) {
-				st->channels[cnt].type = IIO_VOLTAGE;
-				st->channels[cnt].differential = 1;
-				st->channels[cnt].channel = (dev * 6) + ch;
-				st->channels[cnt].channel2 =
-					st->channels[cnt].channel + 1;
-			} else {
-				st->channels[cnt].type = IIO_TEMP;
-				st->channels[cnt].channel = (dev * 6) + ch - 6;
-			}
-			st->channels[cnt].indexed = 1;
-			st->channels[cnt].info_mask_separate =
-				BIT(IIO_CHAN_INFO_RAW);
-			st->channels[cnt].info_mask_shared_by_type =
-				BIT(IIO_CHAN_INFO_SCALE);
-			st->channels[cnt].address =
-				AD7280A_DEVADDR(dev) << 8 | ch;
-			st->channels[cnt].scan_index = cnt;
-			st->channels[cnt].scan_type.sign = 'u';
-			st->channels[cnt].scan_type.realbits = 12;
-			st->channels[cnt].scan_type.storagebits = 32;
-			st->channels[cnt].scan_type.shift = 0;
-		}
-
-	st->channels[cnt].type = IIO_VOLTAGE;
-	st->channels[cnt].differential = 1;
-	st->channels[cnt].channel = 0;
-	st->channels[cnt].channel2 = dev * 6;
-	st->channels[cnt].address = AD7280A_ALL_CELLS;
-	st->channels[cnt].indexed = 1;
-	st->channels[cnt].info_mask_separate = BIT(IIO_CHAN_INFO_RAW);
-	st->channels[cnt].info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE);
-	st->channels[cnt].scan_index = cnt;
-	st->channels[cnt].scan_type.sign = 'u';
-	st->channels[cnt].scan_type.realbits = 32;
-	st->channels[cnt].scan_type.storagebits = 32;
-	st->channels[cnt].scan_type.shift = 0;
-	cnt++;
-	st->channels[cnt].type = IIO_TIMESTAMP;
-	st->channels[cnt].channel = -1;
-	st->channels[cnt].scan_index = cnt;
-	st->channels[cnt].scan_type.sign = 's';
-	st->channels[cnt].scan_type.realbits = 64;
-	st->channels[cnt].scan_type.storagebits = 64;
-	st->channels[cnt].scan_type.shift = 0;
-
-	return cnt + 1;
-}
-
-static int ad7280_attr_init(struct ad7280_state *st)
-{
-	int dev, ch, cnt;
-
-	st->iio_attr = kcalloc(2, sizeof(*st->iio_attr) *
-			       (st->slave_num + 1) * AD7280A_CELLS_PER_DEV,
-			       GFP_KERNEL);
-	if (st->iio_attr == NULL)
-		return -ENOMEM;
-
-	for (dev = 0, cnt = 0; dev <= st->slave_num; dev++)
-		for (ch = AD7280A_CELL_VOLTAGE_1; ch <= AD7280A_CELL_VOLTAGE_6;
-			ch++, cnt++) {
-			st->iio_attr[cnt].address =
-				AD7280A_DEVADDR(dev) << 8 | ch;
-			st->iio_attr[cnt].dev_attr.attr.mode =
-				S_IWUSR | S_IRUGO;
-			st->iio_attr[cnt].dev_attr.show =
-				ad7280_show_balance_sw;
-			st->iio_attr[cnt].dev_attr.store =
-				ad7280_store_balance_sw;
-			st->iio_attr[cnt].dev_attr.attr.name =
-				kasprintf(GFP_KERNEL,
-					"in%d-in%d_balance_switch_en",
-					(dev * AD7280A_CELLS_PER_DEV) + ch,
-					(dev * AD7280A_CELLS_PER_DEV) + ch + 1);
-			ad7280_attributes[cnt] =
-				&st->iio_attr[cnt].dev_attr.attr;
-			cnt++;
-			st->iio_attr[cnt].address =
-				AD7280A_DEVADDR(dev) << 8 |
-				(AD7280A_CB1_TIMER + ch);
-			st->iio_attr[cnt].dev_attr.attr.mode =
-				S_IWUSR | S_IRUGO;
-			st->iio_attr[cnt].dev_attr.show =
-				ad7280_show_balance_timer;
-			st->iio_attr[cnt].dev_attr.store =
-				ad7280_store_balance_timer;
-			st->iio_attr[cnt].dev_attr.attr.name =
-				kasprintf(GFP_KERNEL, "in%d-in%d_balance_timer",
-					(dev * AD7280A_CELLS_PER_DEV) + ch,
-					(dev * AD7280A_CELLS_PER_DEV) + ch + 1);
-			ad7280_attributes[cnt] =
-				&st->iio_attr[cnt].dev_attr.attr;
-		}
-
-	ad7280_attributes[cnt] = NULL;
-
-	return 0;
-}
-
-static ssize_t ad7280_read_channel_config(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7280_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	unsigned val;
-
-	switch ((u32) this_attr->address) {
-	case AD7280A_CELL_OVERVOLTAGE:
-		val = 1000 + (st->cell_threshhigh * 1568) / 100;
-		break;
-	case AD7280A_CELL_UNDERVOLTAGE:
-		val = 1000 + (st->cell_threshlow * 1568) / 100;
-		break;
-	case AD7280A_AUX_ADC_OVERVOLTAGE:
-		val = (st->aux_threshhigh * 196) / 10;
-		break;
-	case AD7280A_AUX_ADC_UNDERVOLTAGE:
-		val = (st->aux_threshlow * 196) / 10;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ad7280_write_channel_config(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7280_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	long val;
-	int ret;
-
-	ret = kstrtol(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	switch ((u32) this_attr->address) {
-	case AD7280A_CELL_OVERVOLTAGE:
-	case AD7280A_CELL_UNDERVOLTAGE:
-		val = ((val - 1000) * 100) / 1568; /* LSB 15.68mV */
-		break;
-	case AD7280A_AUX_ADC_OVERVOLTAGE:
-	case AD7280A_AUX_ADC_UNDERVOLTAGE:
-		val = (val * 10) / 196; /* LSB 19.6mV */
-		break;
-	default:
-		return -EFAULT;
-	}
-
-	val = clamp(val, 0L, 0xFFL);
-
-	mutex_lock(&indio_dev->mlock);
-	switch ((u32) this_attr->address) {
-	case AD7280A_CELL_OVERVOLTAGE:
-		st->cell_threshhigh = val;
-		break;
-	case AD7280A_CELL_UNDERVOLTAGE:
-		st->cell_threshlow = val;
-		break;
-	case AD7280A_AUX_ADC_OVERVOLTAGE:
-		st->aux_threshhigh = val;
-		break;
-	case AD7280A_AUX_ADC_UNDERVOLTAGE:
-		st->aux_threshlow = val;
-		break;
-	}
-
-	ret = ad7280_write(st, AD7280A_DEVADDR_MASTER,
-			   this_attr->address, 1, val);
-
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static irqreturn_t ad7280_event_handler(int irq, void *private)
-{
-	struct iio_dev *indio_dev = private;
-	struct ad7280_state *st = iio_priv(indio_dev);
-	unsigned *channels;
-	int i, ret;
-
-	channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_KERNEL);
-	if (channels == NULL)
-		return IRQ_HANDLED;
-
-	ret = ad7280_read_all_channels(st, st->scan_cnt, channels);
-	if (ret < 0)
-		goto out;
-
-	for (i = 0; i < st->scan_cnt; i++) {
-		if (((channels[i] >> 23) & 0xF) <= AD7280A_CELL_VOLTAGE_6) {
-			if (((channels[i] >> 11) & 0xFFF) >=
-				st->cell_threshhigh)
-				iio_push_event(indio_dev,
-					IIO_EVENT_CODE(IIO_VOLTAGE,
-						       1,
-						       0,
-						       IIO_EV_DIR_RISING,
-						       IIO_EV_TYPE_THRESH,
-						       0, 0, 0),
-					iio_get_time_ns());
-			else if (((channels[i] >> 11) & 0xFFF) <=
-				st->cell_threshlow)
-				iio_push_event(indio_dev,
-					IIO_EVENT_CODE(IIO_VOLTAGE,
-						       1,
-						       0,
-						       IIO_EV_DIR_FALLING,
-						       IIO_EV_TYPE_THRESH,
-						       0, 0, 0),
-					iio_get_time_ns());
-		} else {
-			if (((channels[i] >> 11) & 0xFFF) >= st->aux_threshhigh)
-				iio_push_event(indio_dev,
-					IIO_UNMOD_EVENT_CODE(IIO_TEMP,
-					0,
-					IIO_EV_TYPE_THRESH,
-					IIO_EV_DIR_RISING),
-					iio_get_time_ns());
-			else if (((channels[i] >> 11) & 0xFFF) <=
-				st->aux_threshlow)
-				iio_push_event(indio_dev,
-					IIO_UNMOD_EVENT_CODE(IIO_TEMP,
-					0,
-					IIO_EV_TYPE_THRESH,
-					IIO_EV_DIR_FALLING),
-					iio_get_time_ns());
-		}
-	}
-
-out:
-	kfree(channels);
-
-	return IRQ_HANDLED;
-}
-
-static IIO_DEVICE_ATTR_NAMED(in_thresh_low_value,
-		in_voltage-voltage_thresh_low_value,
-		S_IRUGO | S_IWUSR,
-		ad7280_read_channel_config,
-		ad7280_write_channel_config,
-		AD7280A_CELL_UNDERVOLTAGE);
-
-static IIO_DEVICE_ATTR_NAMED(in_thresh_high_value,
-		in_voltage-voltage_thresh_high_value,
-		S_IRUGO | S_IWUSR,
-		ad7280_read_channel_config,
-		ad7280_write_channel_config,
-		AD7280A_CELL_OVERVOLTAGE);
-
-static IIO_DEVICE_ATTR(in_temp_thresh_low_value,
-		S_IRUGO | S_IWUSR,
-		ad7280_read_channel_config,
-		ad7280_write_channel_config,
-		AD7280A_AUX_ADC_UNDERVOLTAGE);
-
-static IIO_DEVICE_ATTR(in_temp_thresh_high_value,
-		S_IRUGO | S_IWUSR,
-		ad7280_read_channel_config,
-		ad7280_write_channel_config,
-		AD7280A_AUX_ADC_OVERVOLTAGE);
-
-
-static struct attribute *ad7280_event_attributes[] = {
-	&iio_dev_attr_in_thresh_low_value.dev_attr.attr,
-	&iio_dev_attr_in_thresh_high_value.dev_attr.attr,
-	&iio_dev_attr_in_temp_thresh_low_value.dev_attr.attr,
-	&iio_dev_attr_in_temp_thresh_high_value.dev_attr.attr,
-	NULL,
-};
-
-static struct attribute_group ad7280_event_attrs_group = {
-	.attrs = ad7280_event_attributes,
-};
-
-static int ad7280_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long m)
-{
-	struct ad7280_state *st = iio_priv(indio_dev);
-	int ret;
-
-	switch (m) {
-	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
-		if (chan->address == AD7280A_ALL_CELLS)
-			ret = ad7280_read_all_channels(st, st->scan_cnt, NULL);
-		else
-			ret = ad7280_read_channel(st, chan->address >> 8,
-						  chan->address & 0xFF);
-		mutex_unlock(&indio_dev->mlock);
-
-		if (ret < 0)
-			return ret;
-
-		*val = ret;
-
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE:
-		if ((chan->address & 0xFF) <= AD7280A_CELL_VOLTAGE_6)
-			*val = 4000;
-		else
-			*val = 5000;
-
-		*val2 = AD7280A_BITS;
-		return IIO_VAL_FRACTIONAL_LOG2;
-	}
-	return -EINVAL;
-}
-
-static const struct iio_info ad7280_info = {
-	.read_raw = &ad7280_read_raw,
-	.event_attrs = &ad7280_event_attrs_group,
-	.attrs = &ad7280_attrs_group,
-	.driver_module = THIS_MODULE,
-};
-
-static const struct ad7280_platform_data ad7793_default_pdata = {
-	.acquisition_time = AD7280A_ACQ_TIME_400ns,
-	.conversion_averaging = AD7280A_CONV_AVG_DIS,
-	.thermistor_term_en = true,
-};
-
-static int ad7280_probe(struct spi_device *spi)
-{
-	const struct ad7280_platform_data *pdata = spi->dev.platform_data;
-	struct ad7280_state *st;
-	int ret;
-	const unsigned short tACQ_ns[4] = {465, 1010, 1460, 1890};
-	const unsigned short nAVG[4] = {1, 2, 4, 8};
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL)
-		return -ENOMEM;
-
-	st = iio_priv(indio_dev);
-	spi_set_drvdata(spi, indio_dev);
-	st->spi = spi;
-
-	if (!pdata)
-		pdata = &ad7793_default_pdata;
-
-	ad7280_crc8_build_table(st->crc_tab);
-
-	st->spi->max_speed_hz = AD7280A_MAX_SPI_CLK_Hz;
-	st->spi->mode = SPI_MODE_1;
-	spi_setup(st->spi);
-
-	st->ctrl_lb = AD7280A_CTRL_LB_ACQ_TIME(pdata->acquisition_time & 0x3);
-	st->ctrl_hb = AD7280A_CTRL_HB_CONV_AVG(pdata->conversion_averaging
-			& 0x3) | (pdata->thermistor_term_en ?
-			AD7280A_CTRL_LB_THERMISTOR_EN : 0);
-
-	ret = ad7280_chain_setup(st);
-	if (ret < 0)
-		return ret;
-
-	st->slave_num = ret;
-	st->scan_cnt = (st->slave_num + 1) * AD7280A_NUM_CH;
-	st->cell_threshhigh = 0xFF;
-	st->aux_threshhigh = 0xFF;
-
-	/*
-	 * Total Conversion Time = ((tACQ + tCONV) *
-	 *			   (Number of Conversions per Part)) −
-	 *			   tACQ + ((N - 1) * tDELAY)
-	 *
-	 * Readback Delay = Total Conversion Time + tWAIT
-	 */
-
-	st->readback_delay_us =
-		((tACQ_ns[pdata->acquisition_time & 0x3] + 695) *
-		(AD7280A_NUM_CH * nAVG[pdata->conversion_averaging & 0x3]))
-		- tACQ_ns[pdata->acquisition_time & 0x3] +
-		st->slave_num * 250;
-
-	/* Convert to usecs */
-	st->readback_delay_us = DIV_ROUND_UP(st->readback_delay_us, 1000);
-	st->readback_delay_us += 5; /* Add tWAIT */
-
-	indio_dev->name = spi_get_device_id(spi)->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = ad7280_channel_init(st);
-	if (ret < 0)
-		return ret;
-
-	indio_dev->num_channels = ret;
-	indio_dev->channels = st->channels;
-	indio_dev->info = &ad7280_info;
-
-	ret = ad7280_attr_init(st);
-	if (ret < 0)
-		goto error_free_channels;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_free_attr;
-
-	if (spi->irq > 0) {
-		ret = ad7280_write(st, AD7280A_DEVADDR_MASTER,
-				   AD7280A_ALERT, 1,
-				   AD7280A_ALERT_RELAY_SIG_CHAIN_DOWN);
-		if (ret)
-			goto error_unregister;
-
-		ret = ad7280_write(st, AD7280A_DEVADDR(st->slave_num),
-				   AD7280A_ALERT, 0,
-				   AD7280A_ALERT_GEN_STATIC_HIGH |
-				   (pdata->chain_last_alert_ignore & 0xF));
-		if (ret)
-			goto error_unregister;
-
-		ret = request_threaded_irq(spi->irq,
-					   NULL,
-					   ad7280_event_handler,
-					   IRQF_TRIGGER_FALLING |
-					   IRQF_ONESHOT,
-					   indio_dev->name,
-					   indio_dev);
-		if (ret)
-			goto error_unregister;
-	}
-
-	return 0;
-error_unregister:
-	iio_device_unregister(indio_dev);
-
-error_free_attr:
-	kfree(st->iio_attr);
-
-error_free_channels:
-	kfree(st->channels);
-
-	return ret;
-}
-
-static int ad7280_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct ad7280_state *st = iio_priv(indio_dev);
-
-	if (spi->irq > 0)
-		free_irq(spi->irq, indio_dev);
-	iio_device_unregister(indio_dev);
-
-	ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1,
-			AD7280A_CTRL_HB_PWRDN_SW | st->ctrl_hb);
-
-	kfree(st->channels);
-	kfree(st->iio_attr);
-
-	return 0;
-}
-
-static const struct spi_device_id ad7280_id[] = {
-	{"ad7280a", 0},
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ad7280_id);
-
-static struct spi_driver ad7280_driver = {
-	.driver = {
-		.name	= "ad7280",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= ad7280_probe,
-	.remove		= ad7280_remove,
-	.id_table	= ad7280_id,
-};
-module_spi_driver(ad7280_driver);
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7280A");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7280a.h b/drivers/staging/iio/adc/ad7280a.h
deleted file mode 100644
index 732347a9bce4..000000000000
--- a/drivers/staging/iio/adc/ad7280a.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * AD7280A Lithium Ion Battery Monitoring System
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#ifndef IIO_ADC_AD7280_H_
-#define IIO_ADC_AD7280_H_
-
-/*
- * TODO: struct ad7280_platform_data needs to go into include/linux/iio
- */
-
-#define AD7280A_ACQ_TIME_400ns			0
-#define AD7280A_ACQ_TIME_800ns			1
-#define AD7280A_ACQ_TIME_1200ns			2
-#define AD7280A_ACQ_TIME_1600ns			3
-
-#define AD7280A_CONV_AVG_DIS			0
-#define AD7280A_CONV_AVG_2			1
-#define AD7280A_CONV_AVG_4			2
-#define AD7280A_CONV_AVG_8			3
-
-#define AD7280A_ALERT_REMOVE_VIN5		BIT(2)
-#define AD7280A_ALERT_REMOVE_VIN4_VIN5		BIT(3)
-#define AD7280A_ALERT_REMOVE_AUX5		BIT(0)
-#define AD7280A_ALERT_REMOVE_AUX4_AUX5		BIT(1)
-
-struct ad7280_platform_data {
-	unsigned acquisition_time;
-	unsigned conversion_averaging;
-	unsigned chain_last_alert_ignore;
-	bool thermistor_term_en;
-};
-
-#endif /* IIO_ADC_AD7280_H_ */
diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h
deleted file mode 100644
index ec89d055cf58..000000000000
--- a/drivers/staging/iio/adc/ad7606.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * AD7606 ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#ifndef IIO_ADC_AD7606_H_
-#define IIO_ADC_AD7606_H_
-
-/*
- * TODO: struct ad7606_platform_data needs to go into include/linux/iio
- */
-
-/**
- * struct ad7606_platform_data - platform/board specific information
- * @default_os:		default oversampling value {0, 2, 4, 8, 16, 32, 64}
- * @default_range:	default range +/-{5000, 10000} mVolt
- * @gpio_convst:	number of gpio connected to the CONVST pin
- * @gpio_reset:		gpio connected to the RESET pin, if not used set to -1
- * @gpio_range:		gpio connected to the RANGE pin, if not used set to -1
- * @gpio_os0:		gpio connected to the OS0 pin, if not used set to -1
- * @gpio_os1:		gpio connected to the OS1 pin, if not used set to -1
- * @gpio_os2:		gpio connected to the OS2 pin, if not used set to -1
- * @gpio_frstdata:	gpio connected to the FRSTDAT pin, if not used set to -1
- * @gpio_stby:		gpio connected to the STBY pin, if not used set to -1
- */
-
-struct ad7606_platform_data {
-	unsigned			default_os;
-	unsigned			default_range;
-	unsigned			gpio_convst;
-	unsigned			gpio_reset;
-	unsigned			gpio_range;
-	unsigned			gpio_os0;
-	unsigned			gpio_os1;
-	unsigned			gpio_os2;
-	unsigned			gpio_frstdata;
-	unsigned			gpio_stby;
-};
-
-/**
- * struct ad7606_chip_info - chip specific information
- * @name:		identification string for chip
- * @int_vref_mv:	the internal reference voltage
- * @channels:		channel specification
- * @num_channels:	number of channels
- */
-
-struct ad7606_chip_info {
-	const char			*name;
-	u16				int_vref_mv;
-	const struct iio_chan_spec	*channels;
-	unsigned			num_channels;
-};
-
-/**
- * struct ad7606_state - driver instance specific data
- */
-
-struct ad7606_state {
-	struct device			*dev;
-	const struct ad7606_chip_info	*chip_info;
-	struct ad7606_platform_data	*pdata;
-	struct regulator		*reg;
-	struct work_struct		poll_work;
-	wait_queue_head_t		wq_data_avail;
-	const struct ad7606_bus_ops	*bops;
-	unsigned			range;
-	unsigned			oversampling;
-	bool				done;
-	void __iomem			*base_address;
-
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-
-	unsigned short			data[8] ____cacheline_aligned;
-};
-
-struct ad7606_bus_ops {
-	/* more methods added in future? */
-	int (*read_block)(struct device *, int, void *);
-};
-
-void ad7606_suspend(struct iio_dev *indio_dev);
-void ad7606_resume(struct iio_dev *indio_dev);
-struct iio_dev *ad7606_probe(struct device *dev, int irq,
-			      void __iomem *base_address, unsigned id,
-			      const struct ad7606_bus_ops *bops);
-int ad7606_remove(struct iio_dev *indio_dev, int irq);
-int ad7606_reset(struct ad7606_state *st);
-
-enum ad7606_supported_device_ids {
-	ID_AD7606_8,
-	ID_AD7606_6,
-	ID_AD7606_4
-};
-
-int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev);
-void ad7606_ring_cleanup(struct iio_dev *indio_dev);
-#endif /* IIO_ADC_AD7606_H_ */
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
deleted file mode 100644
index bf2c8013134c..000000000000
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ /dev/null
@@ -1,603 +0,0 @@
-/*
- * AD7606 SPI ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-
-#include "ad7606.h"
-
-int ad7606_reset(struct ad7606_state *st)
-{
-	if (gpio_is_valid(st->pdata->gpio_reset)) {
-		gpio_set_value(st->pdata->gpio_reset, 1);
-		ndelay(100); /* t_reset >= 100ns */
-		gpio_set_value(st->pdata->gpio_reset, 0);
-		return 0;
-	}
-
-	return -ENODEV;
-}
-
-static int ad7606_scan_direct(struct iio_dev *indio_dev, unsigned ch)
-{
-	struct ad7606_state *st = iio_priv(indio_dev);
-	int ret;
-
-	st->done = false;
-	gpio_set_value(st->pdata->gpio_convst, 1);
-
-	ret = wait_event_interruptible(st->wq_data_avail, st->done);
-	if (ret)
-		goto error_ret;
-
-	if (gpio_is_valid(st->pdata->gpio_frstdata)) {
-		ret = st->bops->read_block(st->dev, 1, st->data);
-		if (ret)
-			goto error_ret;
-		if (!gpio_get_value(st->pdata->gpio_frstdata)) {
-			/* This should never happen */
-			ad7606_reset(st);
-			ret = -EIO;
-			goto error_ret;
-		}
-		ret = st->bops->read_block(st->dev,
-			st->chip_info->num_channels - 1, &st->data[1]);
-		if (ret)
-			goto error_ret;
-	} else {
-		ret = st->bops->read_block(st->dev,
-			st->chip_info->num_channels, st->data);
-		if (ret)
-			goto error_ret;
-	}
-
-	ret = st->data[ch];
-
-error_ret:
-	gpio_set_value(st->pdata->gpio_convst, 0);
-
-	return ret;
-}
-
-static int ad7606_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long m)
-{
-	int ret;
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	switch (m) {
-	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
-		if (iio_buffer_enabled(indio_dev))
-			ret = -EBUSY;
-		else
-			ret = ad7606_scan_direct(indio_dev, chan->address);
-		mutex_unlock(&indio_dev->mlock);
-
-		if (ret < 0)
-			return ret;
-		*val = (short) ret;
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE:
-		*val = st->range * 2;
-		*val2 = st->chip_info->channels[0].scan_type.realbits;
-		return IIO_VAL_FRACTIONAL_LOG2;
-	}
-	return -EINVAL;
-}
-
-static ssize_t ad7606_show_range(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	return sprintf(buf, "%u\n", st->range);
-}
-
-static ssize_t ad7606_store_range(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7606_state *st = iio_priv(indio_dev);
-	unsigned long lval;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &lval);
-	if (ret)
-		return ret;
-
-	if (!(lval == 5000 || lval == 10000)) {
-		dev_err(dev, "range is not supported\n");
-		return -EINVAL;
-	}
-	mutex_lock(&indio_dev->mlock);
-	gpio_set_value(st->pdata->gpio_range, lval == 10000);
-	st->range = lval;
-	mutex_unlock(&indio_dev->mlock);
-
-	return count;
-}
-
-static IIO_DEVICE_ATTR(in_voltage_range, S_IRUGO | S_IWUSR,
-		       ad7606_show_range, ad7606_store_range, 0);
-static IIO_CONST_ATTR(in_voltage_range_available, "5000 10000");
-
-static ssize_t ad7606_show_oversampling_ratio(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	return sprintf(buf, "%u\n", st->oversampling);
-}
-
-static int ad7606_oversampling_get_index(unsigned val)
-{
-	unsigned char supported[] = {0, 2, 4, 8, 16, 32, 64};
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(supported); i++)
-		if (val == supported[i])
-			return i;
-
-	return -EINVAL;
-}
-
-static ssize_t ad7606_store_oversampling_ratio(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7606_state *st = iio_priv(indio_dev);
-	unsigned long lval;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &lval);
-	if (ret)
-		return ret;
-
-	ret = ad7606_oversampling_get_index(lval);
-	if (ret < 0) {
-		dev_err(dev, "oversampling %lu is not supported\n", lval);
-		return ret;
-	}
-
-	mutex_lock(&indio_dev->mlock);
-	gpio_set_value(st->pdata->gpio_os0, (ret >> 0) & 1);
-	gpio_set_value(st->pdata->gpio_os1, (ret >> 1) & 1);
-	gpio_set_value(st->pdata->gpio_os1, (ret >> 2) & 1);
-	st->oversampling = lval;
-	mutex_unlock(&indio_dev->mlock);
-
-	return count;
-}
-
-static IIO_DEVICE_ATTR(oversampling_ratio, S_IRUGO | S_IWUSR,
-		       ad7606_show_oversampling_ratio,
-		       ad7606_store_oversampling_ratio, 0);
-static IIO_CONST_ATTR(oversampling_ratio_available, "0 2 4 8 16 32 64");
-
-static struct attribute *ad7606_attributes_os_and_range[] = {
-	&iio_dev_attr_in_voltage_range.dev_attr.attr,
-	&iio_const_attr_in_voltage_range_available.dev_attr.attr,
-	&iio_dev_attr_oversampling_ratio.dev_attr.attr,
-	&iio_const_attr_oversampling_ratio_available.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ad7606_attribute_group_os_and_range = {
-	.attrs = ad7606_attributes_os_and_range,
-};
-
-static struct attribute *ad7606_attributes_os[] = {
-	&iio_dev_attr_oversampling_ratio.dev_attr.attr,
-	&iio_const_attr_oversampling_ratio_available.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ad7606_attribute_group_os = {
-	.attrs = ad7606_attributes_os,
-};
-
-static struct attribute *ad7606_attributes_range[] = {
-	&iio_dev_attr_in_voltage_range.dev_attr.attr,
-	&iio_const_attr_in_voltage_range_available.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ad7606_attribute_group_range = {
-	.attrs = ad7606_attributes_range,
-};
-
-#define AD7606_CHANNEL(num)					\
-	{							\
-		.type = IIO_VOLTAGE,				\
-		.indexed = 1,					\
-		.channel = num,					\
-		.address = num,					\
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),\
-		.scan_index = num,				\
-		.scan_type = {					\
-			.sign = 's',				\
-			.realbits = 16,				\
-			.storagebits = 16,			\
-			.endianness = IIO_CPU,			\
-		},						\
-	}
-
-static const struct iio_chan_spec ad7606_8_channels[] = {
-	AD7606_CHANNEL(0),
-	AD7606_CHANNEL(1),
-	AD7606_CHANNEL(2),
-	AD7606_CHANNEL(3),
-	AD7606_CHANNEL(4),
-	AD7606_CHANNEL(5),
-	AD7606_CHANNEL(6),
-	AD7606_CHANNEL(7),
-	IIO_CHAN_SOFT_TIMESTAMP(8),
-};
-
-static const struct iio_chan_spec ad7606_6_channels[] = {
-	AD7606_CHANNEL(0),
-	AD7606_CHANNEL(1),
-	AD7606_CHANNEL(2),
-	AD7606_CHANNEL(3),
-	AD7606_CHANNEL(4),
-	AD7606_CHANNEL(5),
-	IIO_CHAN_SOFT_TIMESTAMP(6),
-};
-
-static const struct iio_chan_spec ad7606_4_channels[] = {
-	AD7606_CHANNEL(0),
-	AD7606_CHANNEL(1),
-	AD7606_CHANNEL(2),
-	AD7606_CHANNEL(3),
-	IIO_CHAN_SOFT_TIMESTAMP(4),
-};
-
-static const struct ad7606_chip_info ad7606_chip_info_tbl[] = {
-	/*
-	 * More devices added in future
-	 */
-	[ID_AD7606_8] = {
-		.name = "ad7606",
-		.int_vref_mv = 2500,
-		.channels = ad7606_8_channels,
-		.num_channels = 8,
-	},
-	[ID_AD7606_6] = {
-		.name = "ad7606-6",
-		.int_vref_mv = 2500,
-		.channels = ad7606_6_channels,
-		.num_channels = 6,
-	},
-	[ID_AD7606_4] = {
-		.name = "ad7606-4",
-		.int_vref_mv = 2500,
-		.channels = ad7606_4_channels,
-		.num_channels = 4,
-	},
-};
-
-static int ad7606_request_gpios(struct ad7606_state *st)
-{
-	struct gpio gpio_array[3] = {
-		[0] = {
-			.gpio =  st->pdata->gpio_os0,
-			.flags = GPIOF_DIR_OUT | ((st->oversampling & 1) ?
-				 GPIOF_INIT_HIGH : GPIOF_INIT_LOW),
-			.label = "AD7606_OS0",
-		},
-		[1] = {
-			.gpio =  st->pdata->gpio_os1,
-			.flags = GPIOF_DIR_OUT | ((st->oversampling & 2) ?
-				 GPIOF_INIT_HIGH : GPIOF_INIT_LOW),
-			.label = "AD7606_OS1",
-		},
-		[2] = {
-			.gpio =  st->pdata->gpio_os2,
-			.flags = GPIOF_DIR_OUT | ((st->oversampling & 4) ?
-				 GPIOF_INIT_HIGH : GPIOF_INIT_LOW),
-			.label = "AD7606_OS2",
-		},
-	};
-	int ret;
-
-	if (gpio_is_valid(st->pdata->gpio_convst)) {
-		ret = gpio_request_one(st->pdata->gpio_convst,
-				       GPIOF_OUT_INIT_LOW,
-				       "AD7606_CONVST");
-		if (ret) {
-			dev_err(st->dev, "failed to request GPIO CONVST\n");
-			goto error_ret;
-		}
-	} else {
-		ret = -EIO;
-		goto error_ret;
-	}
-
-	if (gpio_is_valid(st->pdata->gpio_os0) &&
-	    gpio_is_valid(st->pdata->gpio_os1) &&
-	    gpio_is_valid(st->pdata->gpio_os2)) {
-		ret = gpio_request_array(gpio_array, ARRAY_SIZE(gpio_array));
-		if (ret < 0)
-			goto error_free_convst;
-	}
-
-	if (gpio_is_valid(st->pdata->gpio_reset)) {
-		ret = gpio_request_one(st->pdata->gpio_reset,
-				       GPIOF_OUT_INIT_LOW,
-				       "AD7606_RESET");
-		if (ret < 0)
-			goto error_free_os;
-	}
-
-	if (gpio_is_valid(st->pdata->gpio_range)) {
-		ret = gpio_request_one(st->pdata->gpio_range, GPIOF_DIR_OUT |
-				       ((st->range == 10000) ? GPIOF_INIT_HIGH :
-					GPIOF_INIT_LOW), "AD7606_RANGE");
-		if (ret < 0)
-			goto error_free_reset;
-	}
-	if (gpio_is_valid(st->pdata->gpio_stby)) {
-		ret = gpio_request_one(st->pdata->gpio_stby,
-				       GPIOF_OUT_INIT_HIGH,
-				       "AD7606_STBY");
-		if (ret < 0)
-			goto error_free_range;
-	}
-
-	if (gpio_is_valid(st->pdata->gpio_frstdata)) {
-		ret = gpio_request_one(st->pdata->gpio_frstdata, GPIOF_IN,
-				       "AD7606_FRSTDATA");
-		if (ret < 0)
-			goto error_free_stby;
-	}
-
-	return 0;
-
-error_free_stby:
-	if (gpio_is_valid(st->pdata->gpio_stby))
-		gpio_free(st->pdata->gpio_stby);
-error_free_range:
-	if (gpio_is_valid(st->pdata->gpio_range))
-		gpio_free(st->pdata->gpio_range);
-error_free_reset:
-	if (gpio_is_valid(st->pdata->gpio_reset))
-		gpio_free(st->pdata->gpio_reset);
-error_free_os:
-	if (gpio_is_valid(st->pdata->gpio_os0) &&
-	    gpio_is_valid(st->pdata->gpio_os1) &&
-	    gpio_is_valid(st->pdata->gpio_os2))
-		gpio_free_array(gpio_array, ARRAY_SIZE(gpio_array));
-error_free_convst:
-	gpio_free(st->pdata->gpio_convst);
-error_ret:
-	return ret;
-}
-
-static void ad7606_free_gpios(struct ad7606_state *st)
-{
-	if (gpio_is_valid(st->pdata->gpio_frstdata))
-		gpio_free(st->pdata->gpio_frstdata);
-	if (gpio_is_valid(st->pdata->gpio_stby))
-		gpio_free(st->pdata->gpio_stby);
-	if (gpio_is_valid(st->pdata->gpio_range))
-		gpio_free(st->pdata->gpio_range);
-	if (gpio_is_valid(st->pdata->gpio_reset))
-		gpio_free(st->pdata->gpio_reset);
-	if (gpio_is_valid(st->pdata->gpio_os0) &&
-	    gpio_is_valid(st->pdata->gpio_os1) &&
-	    gpio_is_valid(st->pdata->gpio_os2)) {
-		gpio_free(st->pdata->gpio_os2);
-		gpio_free(st->pdata->gpio_os1);
-		gpio_free(st->pdata->gpio_os0);
-	}
-	gpio_free(st->pdata->gpio_convst);
-}
-
-/**
- *  Interrupt handler
- */
-static irqreturn_t ad7606_interrupt(int irq, void *dev_id)
-{
-	struct iio_dev *indio_dev = dev_id;
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	if (iio_buffer_enabled(indio_dev)) {
-		schedule_work(&st->poll_work);
-	} else {
-		st->done = true;
-		wake_up_interruptible(&st->wq_data_avail);
-	}
-
-	return IRQ_HANDLED;
-};
-
-static const struct iio_info ad7606_info_no_os_or_range = {
-	.driver_module = THIS_MODULE,
-	.read_raw = &ad7606_read_raw,
-};
-
-static const struct iio_info ad7606_info_os_and_range = {
-	.driver_module = THIS_MODULE,
-	.read_raw = &ad7606_read_raw,
-	.attrs = &ad7606_attribute_group_os_and_range,
-};
-
-static const struct iio_info ad7606_info_os = {
-	.driver_module = THIS_MODULE,
-	.read_raw = &ad7606_read_raw,
-	.attrs = &ad7606_attribute_group_os,
-};
-
-static const struct iio_info ad7606_info_range = {
-	.driver_module = THIS_MODULE,
-	.read_raw = &ad7606_read_raw,
-	.attrs = &ad7606_attribute_group_range,
-};
-
-struct iio_dev *ad7606_probe(struct device *dev, int irq,
-			      void __iomem *base_address,
-			      unsigned id,
-			      const struct ad7606_bus_ops *bops)
-{
-	struct ad7606_platform_data *pdata = dev->platform_data;
-	struct ad7606_state *st;
-	int ret;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
-	if (!indio_dev)
-		return ERR_PTR(-ENOMEM);
-
-	st = iio_priv(indio_dev);
-
-	st->dev = dev;
-	st->bops = bops;
-	st->base_address = base_address;
-	st->range = pdata->default_range == 10000 ? 10000 : 5000;
-
-	ret = ad7606_oversampling_get_index(pdata->default_os);
-	if (ret < 0) {
-		dev_warn(dev, "oversampling %d is not supported\n",
-			 pdata->default_os);
-		st->oversampling = 0;
-	} else {
-		st->oversampling = pdata->default_os;
-	}
-
-	st->reg = devm_regulator_get(dev, "vcc");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ERR_PTR(ret);
-	}
-
-	st->pdata = pdata;
-	st->chip_info = &ad7606_chip_info_tbl[id];
-
-	indio_dev->dev.parent = dev;
-	if (gpio_is_valid(st->pdata->gpio_os0) &&
-	    gpio_is_valid(st->pdata->gpio_os1) &&
-	    gpio_is_valid(st->pdata->gpio_os2)) {
-		if (gpio_is_valid(st->pdata->gpio_range))
-			indio_dev->info = &ad7606_info_os_and_range;
-		else
-			indio_dev->info = &ad7606_info_os;
-	} else {
-		if (gpio_is_valid(st->pdata->gpio_range))
-			indio_dev->info = &ad7606_info_range;
-		else
-			indio_dev->info = &ad7606_info_no_os_or_range;
-	}
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->name = st->chip_info->name;
-	indio_dev->channels = st->chip_info->channels;
-	indio_dev->num_channels = st->chip_info->num_channels;
-
-	init_waitqueue_head(&st->wq_data_avail);
-
-	ret = ad7606_request_gpios(st);
-	if (ret)
-		goto error_disable_reg;
-
-	ret = ad7606_reset(st);
-	if (ret)
-		dev_warn(st->dev, "failed to RESET: no RESET GPIO specified\n");
-
-	ret = request_irq(irq, ad7606_interrupt,
-		IRQF_TRIGGER_FALLING, st->chip_info->name, indio_dev);
-	if (ret)
-		goto error_free_gpios;
-
-	ret = ad7606_register_ring_funcs_and_init(indio_dev);
-	if (ret)
-		goto error_free_irq;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_unregister_ring;
-
-	return indio_dev;
-error_unregister_ring:
-	ad7606_ring_cleanup(indio_dev);
-
-error_free_irq:
-	free_irq(irq, indio_dev);
-
-error_free_gpios:
-	ad7606_free_gpios(st);
-
-error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-	return ERR_PTR(ret);
-}
-
-int ad7606_remove(struct iio_dev *indio_dev, int irq)
-{
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	ad7606_ring_cleanup(indio_dev);
-
-	free_irq(irq, indio_dev);
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	ad7606_free_gpios(st);
-
-	return 0;
-}
-
-void ad7606_suspend(struct iio_dev *indio_dev)
-{
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	if (gpio_is_valid(st->pdata->gpio_stby)) {
-		if (gpio_is_valid(st->pdata->gpio_range))
-			gpio_set_value(st->pdata->gpio_range, 1);
-		gpio_set_value(st->pdata->gpio_stby, 0);
-	}
-}
-
-void ad7606_resume(struct iio_dev *indio_dev)
-{
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	if (gpio_is_valid(st->pdata->gpio_stby)) {
-		if (gpio_is_valid(st->pdata->gpio_range))
-			gpio_set_value(st->pdata->gpio_range,
-					st->range == 10000);
-
-		gpio_set_value(st->pdata->gpio_stby, 1);
-		ad7606_reset(st);
-	}
-}
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7606_par.c b/drivers/staging/iio/adc/ad7606_par.c
deleted file mode 100644
index 1d48ae381d16..000000000000
--- a/drivers/staging/iio/adc/ad7606_par.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * AD7606 Parallel Interface ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/types.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#include <linux/iio/iio.h>
-#include "ad7606.h"
-
-static int ad7606_par16_read_block(struct device *dev,
-				 int count, void *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	insw((unsigned long) st->base_address, buf, count);
-
-	return 0;
-}
-
-static const struct ad7606_bus_ops ad7606_par16_bops = {
-	.read_block	= ad7606_par16_read_block,
-};
-
-static int ad7606_par8_read_block(struct device *dev,
-				 int count, void *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	insb((unsigned long) st->base_address, buf, count * 2);
-
-	return 0;
-}
-
-static const struct ad7606_bus_ops ad7606_par8_bops = {
-	.read_block	= ad7606_par8_read_block,
-};
-
-static int ad7606_par_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	struct iio_dev *indio_dev;
-	void __iomem *addr;
-	resource_size_t remap_size;
-	int irq;
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "no irq\n");
-		return -ENODEV;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	addr = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(addr))
-		return PTR_ERR(addr);
-
-	remap_size = resource_size(res);
-
-	indio_dev = ad7606_probe(&pdev->dev, irq, addr,
-			  platform_get_device_id(pdev)->driver_data,
-			  remap_size > 1 ? &ad7606_par16_bops :
-			  &ad7606_par8_bops);
-
-	if (IS_ERR(indio_dev))
-		return PTR_ERR(indio_dev);
-
-	platform_set_drvdata(pdev, indio_dev);
-
-	return 0;
-}
-
-static int ad7606_par_remove(struct platform_device *pdev)
-{
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-
-	ad7606_remove(indio_dev, platform_get_irq(pdev, 0));
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int ad7606_par_suspend(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-
-	ad7606_suspend(indio_dev);
-
-	return 0;
-}
-
-static int ad7606_par_resume(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-
-	ad7606_resume(indio_dev);
-
-	return 0;
-}
-
-static const struct dev_pm_ops ad7606_pm_ops = {
-	.suspend = ad7606_par_suspend,
-	.resume  = ad7606_par_resume,
-};
-#define AD7606_PAR_PM_OPS (&ad7606_pm_ops)
-
-#else
-#define AD7606_PAR_PM_OPS NULL
-#endif  /* CONFIG_PM */
-
-static const struct platform_device_id ad7606_driver_ids[] = {
-	{
-		.name		= "ad7606-8",
-		.driver_data	= ID_AD7606_8,
-	}, {
-		.name		= "ad7606-6",
-		.driver_data	= ID_AD7606_6,
-	}, {
-		.name		= "ad7606-4",
-		.driver_data	= ID_AD7606_4,
-	},
-	{ }
-};
-
-MODULE_DEVICE_TABLE(platform, ad7606_driver_ids);
-
-static struct platform_driver ad7606_driver = {
-	.probe = ad7606_par_probe,
-	.remove	= ad7606_par_remove,
-	.id_table = ad7606_driver_ids,
-	.driver = {
-		.name	 = "ad7606",
-		.pm    = AD7606_PAR_PM_OPS,
-	},
-};
-
-module_platform_driver(ad7606_driver);
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c
deleted file mode 100644
index a6f8eb11242c..000000000000
--- a/drivers/staging/iio/adc/ad7606_ring.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Copyright 2011-2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- *
- */
-
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
-
-#include "ad7606.h"
-
-/**
- * ad7606_trigger_handler_th() th/bh of trigger launched polling to ring buffer
- *
- **/
-static irqreturn_t ad7606_trigger_handler_th_bh(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct ad7606_state *st = iio_priv(pf->indio_dev);
-
-	gpio_set_value(st->pdata->gpio_convst, 1);
-
-	return IRQ_HANDLED;
-}
-
-/**
- * ad7606_poll_bh_to_ring() bh of trigger launched polling to ring buffer
- * @work_s:	the work struct through which this was scheduled
- *
- * Currently there is no option in this driver to disable the saving of
- * timestamps within the ring.
- * I think the one copy of this at a time was to avoid problems if the
- * trigger was set far too high and the reads then locked up the computer.
- **/
-static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
-{
-	struct ad7606_state *st = container_of(work_s, struct ad7606_state,
-						poll_work);
-	struct iio_dev *indio_dev = iio_priv_to_dev(st);
-	__u8 *buf;
-	int ret;
-
-	buf = kzalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (!buf)
-		return;
-
-	if (gpio_is_valid(st->pdata->gpio_frstdata)) {
-		ret = st->bops->read_block(st->dev, 1, buf);
-		if (ret)
-			goto done;
-		if (!gpio_get_value(st->pdata->gpio_frstdata)) {
-			/* This should never happen. However
-			 * some signal glitch caused by bad PCB desgin or
-			 * electrostatic discharge, could cause an extra read
-			 * or clock. This allows recovery.
-			 */
-			ad7606_reset(st);
-			goto done;
-		}
-		ret = st->bops->read_block(st->dev,
-			st->chip_info->num_channels - 1, buf + 2);
-		if (ret)
-			goto done;
-	} else {
-		ret = st->bops->read_block(st->dev,
-			st->chip_info->num_channels, buf);
-		if (ret)
-			goto done;
-	}
-
-	iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
-done:
-	gpio_set_value(st->pdata->gpio_convst, 0);
-	iio_trigger_notify_done(indio_dev->trig);
-	kfree(buf);
-}
-
-int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	INIT_WORK(&st->poll_work, &ad7606_poll_bh_to_ring);
-
-	return iio_triggered_buffer_setup(indio_dev,
-		&ad7606_trigger_handler_th_bh, &ad7606_trigger_handler_th_bh,
-		NULL);
-}
-
-void ad7606_ring_cleanup(struct iio_dev *indio_dev)
-{
-	iio_triggered_buffer_cleanup(indio_dev);
-}
diff --git a/drivers/staging/iio/adc/ad7606_spi.c b/drivers/staging/iio/adc/ad7606_spi.c
deleted file mode 100644
index 7303983e64a7..000000000000
--- a/drivers/staging/iio/adc/ad7606_spi.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * AD7606 SPI ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/module.h>
-#include <linux/spi/spi.h>
-#include <linux/types.h>
-#include <linux/err.h>
-
-#include <linux/iio/iio.h>
-#include "ad7606.h"
-
-#define MAX_SPI_FREQ_HZ		23500000	/* VDRIVE above 4.75 V */
-
-static int ad7606_spi_read_block(struct device *dev,
-				 int count, void *buf)
-{
-	struct spi_device *spi = to_spi_device(dev);
-	int i, ret;
-	unsigned short *data = buf;
-
-	ret = spi_read(spi, buf, count * 2);
-	if (ret < 0) {
-		dev_err(&spi->dev, "SPI read error\n");
-		return ret;
-	}
-
-	for (i = 0; i < count; i++)
-		data[i] = be16_to_cpu(data[i]);
-
-	return 0;
-}
-
-static const struct ad7606_bus_ops ad7606_spi_bops = {
-	.read_block	= ad7606_spi_read_block,
-};
-
-static int ad7606_spi_probe(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev;
-
-	indio_dev = ad7606_probe(&spi->dev, spi->irq, NULL,
-			   spi_get_device_id(spi)->driver_data,
-			   &ad7606_spi_bops);
-
-	if (IS_ERR(indio_dev))
-		return PTR_ERR(indio_dev);
-
-	spi_set_drvdata(spi, indio_dev);
-
-	return 0;
-}
-
-static int ad7606_spi_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(&spi->dev);
-
-	return ad7606_remove(indio_dev, spi->irq);
-}
-
-#ifdef CONFIG_PM
-static int ad7606_spi_suspend(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-
-	ad7606_suspend(indio_dev);
-
-	return 0;
-}
-
-static int ad7606_spi_resume(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-
-	ad7606_resume(indio_dev);
-
-	return 0;
-}
-
-static const struct dev_pm_ops ad7606_pm_ops = {
-	.suspend = ad7606_spi_suspend,
-	.resume  = ad7606_spi_resume,
-};
-#define AD7606_SPI_PM_OPS (&ad7606_pm_ops)
-
-#else
-#define AD7606_SPI_PM_OPS NULL
-#endif
-
-static const struct spi_device_id ad7606_id[] = {
-	{"ad7606-8", ID_AD7606_8},
-	{"ad7606-6", ID_AD7606_6},
-	{"ad7606-4", ID_AD7606_4},
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ad7606_id);
-
-static struct spi_driver ad7606_driver = {
-	.driver = {
-		.name = "ad7606",
-		.owner = THIS_MODULE,
-		.pm    = AD7606_SPI_PM_OPS,
-	},
-	.probe = ad7606_spi_probe,
-	.remove = ad7606_spi_remove,
-	.id_table = ad7606_id,
-};
-module_spi_driver(ad7606_driver);
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
deleted file mode 100644
index 9f03fe3ee3d9..000000000000
--- a/drivers/staging/iio/adc/ad7780.c
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- * AD7170/AD7171 and AD7780/AD7781 SPI ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/spi/spi.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-#include <linux/sched.h>
-#include <linux/gpio.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/adc/ad_sigma_delta.h>
-
-#include "ad7780.h"
-
-#define AD7780_RDY	BIT(7)
-#define AD7780_FILTER	BIT(6)
-#define AD7780_ERR	BIT(5)
-#define AD7780_ID1	BIT(4)
-#define AD7780_ID0	BIT(3)
-#define AD7780_GAIN	BIT(2)
-#define AD7780_PAT1	BIT(1)
-#define AD7780_PAT0	BIT(0)
-
-struct ad7780_chip_info {
-	struct iio_chan_spec	channel;
-	unsigned int		pattern_mask;
-	unsigned int		pattern;
-};
-
-struct ad7780_state {
-	const struct ad7780_chip_info	*chip_info;
-	struct regulator		*reg;
-	int				powerdown_gpio;
-	unsigned int	gain;
-	u16				int_vref_mv;
-
-	struct ad_sigma_delta sd;
-};
-
-enum ad7780_supported_device_ids {
-	ID_AD7170,
-	ID_AD7171,
-	ID_AD7780,
-	ID_AD7781,
-};
-
-static struct ad7780_state *ad_sigma_delta_to_ad7780(struct ad_sigma_delta *sd)
-{
-	return container_of(sd, struct ad7780_state, sd);
-}
-
-static int ad7780_set_mode(struct ad_sigma_delta *sigma_delta,
-	enum ad_sigma_delta_mode mode)
-{
-	struct ad7780_state *st = ad_sigma_delta_to_ad7780(sigma_delta);
-	unsigned val;
-
-	switch (mode) {
-	case AD_SD_MODE_SINGLE:
-	case AD_SD_MODE_CONTINUOUS:
-		val = 1;
-		break;
-	default:
-		val = 0;
-		break;
-	}
-
-	if (gpio_is_valid(st->powerdown_gpio))
-		gpio_set_value(st->powerdown_gpio, val);
-
-	return 0;
-}
-
-static int ad7780_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long m)
-{
-	struct ad7780_state *st = iio_priv(indio_dev);
-
-	switch (m) {
-	case IIO_CHAN_INFO_RAW:
-		return ad_sigma_delta_single_conversion(indio_dev, chan, val);
-	case IIO_CHAN_INFO_SCALE:
-		*val = st->int_vref_mv * st->gain;
-		*val2 = chan->scan_type.realbits - 1;
-		return IIO_VAL_FRACTIONAL_LOG2;
-	case IIO_CHAN_INFO_OFFSET:
-		*val -= (1 << (chan->scan_type.realbits - 1));
-		return IIO_VAL_INT;
-	}
-
-	return -EINVAL;
-}
-
-static int ad7780_postprocess_sample(struct ad_sigma_delta *sigma_delta,
-	unsigned int raw_sample)
-{
-	struct ad7780_state *st = ad_sigma_delta_to_ad7780(sigma_delta);
-	const struct ad7780_chip_info *chip_info = st->chip_info;
-
-	if ((raw_sample & AD7780_ERR) ||
-		((raw_sample & chip_info->pattern_mask) != chip_info->pattern))
-		return -EIO;
-
-	if (raw_sample & AD7780_GAIN)
-		st->gain = 1;
-	else
-		st->gain = 128;
-
-	return 0;
-}
-
-static const struct ad_sigma_delta_info ad7780_sigma_delta_info = {
-	.set_mode = ad7780_set_mode,
-	.postprocess_sample = ad7780_postprocess_sample,
-	.has_registers = false,
-};
-
-#define AD7780_CHANNEL(bits, wordsize) \
-	AD_SD_CHANNEL(1, 0, 0, bits, 32, wordsize - bits)
-
-static const struct ad7780_chip_info ad7780_chip_info_tbl[] = {
-	[ID_AD7170] = {
-		.channel = AD7780_CHANNEL(12, 24),
-		.pattern = 0x5,
-		.pattern_mask = 0x7,
-	},
-	[ID_AD7171] = {
-		.channel = AD7780_CHANNEL(16, 24),
-		.pattern = 0x5,
-		.pattern_mask = 0x7,
-	},
-	[ID_AD7780] = {
-		.channel = AD7780_CHANNEL(24, 32),
-		.pattern = 0x1,
-		.pattern_mask = 0x3,
-	},
-	[ID_AD7781] = {
-		.channel = AD7780_CHANNEL(20, 32),
-		.pattern = 0x1,
-		.pattern_mask = 0x3,
-	},
-};
-
-static const struct iio_info ad7780_info = {
-	.read_raw = &ad7780_read_raw,
-	.driver_module = THIS_MODULE,
-};
-
-static int ad7780_probe(struct spi_device *spi)
-{
-	struct ad7780_platform_data *pdata = spi->dev.platform_data;
-	struct ad7780_state *st;
-	struct iio_dev *indio_dev;
-	int ret, voltage_uv = 0;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	st = iio_priv(indio_dev);
-	st->gain = 1;
-
-	ad_sd_init(&st->sd, indio_dev, spi, &ad7780_sigma_delta_info);
-
-	st->reg = devm_regulator_get(&spi->dev, "vcc");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ret;
-
-		voltage_uv = regulator_get_voltage(st->reg);
-	}
-
-	st->chip_info =
-		&ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data];
-
-	if (pdata && pdata->vref_mv)
-		st->int_vref_mv = pdata->vref_mv;
-	else if (voltage_uv)
-		st->int_vref_mv = voltage_uv / 1000;
-	else
-		dev_warn(&spi->dev, "reference voltage unspecified\n");
-
-	spi_set_drvdata(spi, indio_dev);
-
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->name = spi_get_device_id(spi)->name;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = &st->chip_info->channel;
-	indio_dev->num_channels = 1;
-	indio_dev->info = &ad7780_info;
-
-	if (pdata && gpio_is_valid(pdata->gpio_pdrst)) {
-
-		ret = devm_gpio_request_one(&spi->dev, pdata->gpio_pdrst,
-					GPIOF_OUT_INIT_LOW, "AD7780 /PDRST");
-		if (ret) {
-			dev_err(&spi->dev, "failed to request GPIO PDRST\n");
-			goto error_disable_reg;
-		}
-		st->powerdown_gpio = pdata->gpio_pdrst;
-	} else {
-		st->powerdown_gpio = -1;
-	}
-
-	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
-	if (ret)
-		goto error_disable_reg;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_cleanup_buffer_and_trigger;
-
-	return 0;
-
-error_cleanup_buffer_and_trigger:
-	ad_sd_cleanup_buffer_and_trigger(indio_dev);
-error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return ret;
-}
-
-static int ad7780_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct ad7780_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	ad_sd_cleanup_buffer_and_trigger(indio_dev);
-
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return 0;
-}
-
-static const struct spi_device_id ad7780_id[] = {
-	{"ad7170", ID_AD7170},
-	{"ad7171", ID_AD7171},
-	{"ad7780", ID_AD7780},
-	{"ad7781", ID_AD7781},
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ad7780_id);
-
-static struct spi_driver ad7780_driver = {
-	.driver = {
-		.name	= "ad7780",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= ad7780_probe,
-	.remove		= ad7780_remove,
-	.id_table	= ad7780_id,
-};
-module_spi_driver(ad7780_driver);
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7780 and similar ADCs");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/adc/ad7780.h b/drivers/staging/iio/adc/ad7780.h
deleted file mode 100644
index 67e511c3d6f0..000000000000
--- a/drivers/staging/iio/adc/ad7780.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * AD7780/AD7781 SPI ADC driver
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-#ifndef IIO_ADC_AD7780_H_
-#define IIO_ADC_AD7780_H_
-
-/*
- * TODO: struct ad7780_platform_data needs to go into include/linux/iio
- */
-
-/* NOTE:
- * The AD7780 doesn't feature a dedicated SPI chip select, in addition it
- * features a dual use data out ready DOUT/RDY output.
- * In order to avoid contentions on the SPI bus, it's therefore necessary
- * to use spi bus locking combined with a dedicated GPIO to control the
- * power down reset signal of the AD7780.
- *
- * The DOUT/RDY output must also be wired to an interrupt capable GPIO.
- */
-
-struct ad7780_platform_data {
-	u16				vref_mv;
-	int				gpio_pdrst;
-};
-
-#endif /* IIO_ADC_AD7780_H_ */
diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index 48b1c3740030..172acf135f3b 100644
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -1,13 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * AD7816 digital temperature sensor driver supporting AD7816/7/8
  *
  * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/interrupt.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
@@ -38,59 +37,67 @@
 #define AD7816_TEMP_FLOAT_OFFSET	2
 #define AD7816_TEMP_FLOAT_MASK		0x3
 
-
 /*
  * struct ad7816_chip_info - chip specific information
  */
 
 struct ad7816_chip_info {
+	kernel_ulong_t id;
 	struct spi_device *spi_dev;
-	u16 rdwr_pin;
-	u16 convert_pin;
-	u16 busy_pin;
-	u8  oti_data[AD7816_CS_MAX+1];
+	struct gpio_desc *rdwr_pin;
+	struct gpio_desc *convert_pin;
+	struct gpio_desc *busy_pin;
+	u8  oti_data[AD7816_CS_MAX + 1];
 	u8  channel_id;	/* 0 always be temperature */
 	u8  mode;
 };
 
+enum ad7816_type {
+	ID_AD7816,
+	ID_AD7817,
+	ID_AD7818,
+};
+
 /*
  * ad7816 data access by SPI
  */
 static int ad7816_spi_read(struct ad7816_chip_info *chip, u16 *data)
 {
 	struct spi_device *spi_dev = chip->spi_dev;
-	int ret = 0;
+	int ret;
+	__be16 buf;
 
-	gpio_set_value(chip->rdwr_pin, 1);
-	gpio_set_value(chip->rdwr_pin, 0);
+	gpiod_set_value(chip->rdwr_pin, 1);
+	gpiod_set_value(chip->rdwr_pin, 0);
 	ret = spi_write(spi_dev, &chip->channel_id, sizeof(chip->channel_id));
 	if (ret < 0) {
 		dev_err(&spi_dev->dev, "SPI channel setting error\n");
 		return ret;
 	}
-	gpio_set_value(chip->rdwr_pin, 1);
-
+	gpiod_set_value(chip->rdwr_pin, 1);
 
 	if (chip->mode == AD7816_PD) { /* operating mode 2 */
-		gpio_set_value(chip->convert_pin, 1);
-		gpio_set_value(chip->convert_pin, 0);
+		gpiod_set_value(chip->convert_pin, 1);
+		gpiod_set_value(chip->convert_pin, 0);
 	} else { /* operating mode 1 */
-		gpio_set_value(chip->convert_pin, 0);
-		gpio_set_value(chip->convert_pin, 1);
+		gpiod_set_value(chip->convert_pin, 0);
+		gpiod_set_value(chip->convert_pin, 1);
 	}
 
-	while (gpio_get_value(chip->busy_pin))
-		cpu_relax();
+	if (chip->id == ID_AD7816 || chip->id == ID_AD7817) {
+		while (gpiod_get_value(chip->busy_pin))
+			cpu_relax();
+	}
 
-	gpio_set_value(chip->rdwr_pin, 0);
-	gpio_set_value(chip->rdwr_pin, 1);
-	ret = spi_read(spi_dev, (u8 *)data, sizeof(*data));
+	gpiod_set_value(chip->rdwr_pin, 0);
+	gpiod_set_value(chip->rdwr_pin, 1);
+	ret = spi_read(spi_dev, &buf, sizeof(*data));
 	if (ret < 0) {
 		dev_err(&spi_dev->dev, "SPI data read error\n");
 		return ret;
 	}
 
-	*data = be16_to_cpu(*data);
+	*data = be16_to_cpu(buf);
 
 	return ret;
 }
@@ -98,10 +105,10 @@ static int ad7816_spi_read(struct ad7816_chip_info *chip, u16 *data)
 static int ad7816_spi_write(struct ad7816_chip_info *chip, u8 data)
 {
 	struct spi_device *spi_dev = chip->spi_dev;
-	int ret = 0;
+	int ret;
 
-	gpio_set_value(chip->rdwr_pin, 1);
-	gpio_set_value(chip->rdwr_pin, 0);
+	gpiod_set_value(chip->rdwr_pin, 1);
+	gpiod_set_value(chip->rdwr_pin, 0);
 	ret = spi_write(spi_dev, &data, sizeof(data));
 	if (ret < 0)
 		dev_err(&spi_dev->dev, "SPI oti data write error\n");
@@ -110,8 +117,8 @@ static int ad7816_spi_write(struct ad7816_chip_info *chip, u8 data)
 }
 
 static ssize_t ad7816_show_mode(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				struct device_attribute *attr,
+				char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7816_chip_info *chip = iio_priv(indio_dev);
@@ -122,42 +129,42 @@ static ssize_t ad7816_show_mode(struct device *dev,
 }
 
 static ssize_t ad7816_store_mode(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				 struct device_attribute *attr,
+				 const char *buf,
+				 size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7816_chip_info *chip = iio_priv(indio_dev);
 
-	if (strcmp(buf, "full")) {
-		gpio_set_value(chip->rdwr_pin, 1);
+	if (strcmp(buf, "full") == 0) {
+		gpiod_set_value(chip->rdwr_pin, 1);
 		chip->mode = AD7816_FULL;
 	} else {
-		gpio_set_value(chip->rdwr_pin, 0);
+		gpiod_set_value(chip->rdwr_pin, 0);
 		chip->mode = AD7816_PD;
 	}
 
 	return len;
 }
 
-static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(mode, 0644,
 		ad7816_show_mode,
 		ad7816_store_mode,
 		0);
 
 static ssize_t ad7816_show_available_modes(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					   struct device_attribute *attr,
+					   char *buf)
 {
 	return sprintf(buf, "full\npower-save\n");
 }
 
-static IIO_DEVICE_ATTR(available_modes, S_IRUGO, ad7816_show_available_modes,
+static IIO_DEVICE_ATTR(available_modes, 0444, ad7816_show_available_modes,
 			NULL, 0);
 
 static ssize_t ad7816_show_channel(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				   struct device_attribute *attr,
+				   char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7816_chip_info *chip = iio_priv(indio_dev);
@@ -166,9 +173,9 @@ static ssize_t ad7816_show_channel(struct device *dev,
 }
 
 static ssize_t ad7816_store_channel(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				    struct device_attribute *attr,
+				    const char *buf,
+				    size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7816_chip_info *chip = iio_priv(indio_dev);
@@ -198,15 +205,14 @@ static ssize_t ad7816_store_channel(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(channel, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(channel, 0644,
 		ad7816_show_channel,
 		ad7816_store_channel,
 		0);
 
-
 static ssize_t ad7816_show_value(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				 struct device_attribute *attr,
+				 char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7816_chip_info *chip = iio_priv(indio_dev);
@@ -224,13 +230,13 @@ static ssize_t ad7816_show_value(struct device *dev,
 		value = (s8)((data >> AD7816_TEMP_FLOAT_OFFSET) - 103);
 		data &= AD7816_TEMP_FLOAT_MASK;
 		if (value < 0)
-			data = (1 << AD7816_TEMP_FLOAT_OFFSET) - data;
+			data = BIT(AD7816_TEMP_FLOAT_OFFSET) - data;
 		return sprintf(buf, "%d.%.2d\n", value, data * 25);
 	}
 	return sprintf(buf, "%u\n", data);
 }
 
-static IIO_DEVICE_ATTR(value, S_IRUGO, ad7816_show_value, NULL, 0);
+static IIO_DEVICE_ATTR(value, 0444, ad7816_show_value, NULL, 0);
 
 static struct attribute *ad7816_attributes[] = {
 	&iio_dev_attr_available_modes.dev_attr.attr,
@@ -255,13 +261,14 @@ static const struct attribute_group ad7816_attribute_group = {
 
 static irqreturn_t ad7816_event_handler(int irq, void *private)
 {
-	iio_push_event(private, IIO_EVENT_CODE_AD7816_OTI, iio_get_time_ns());
+	iio_push_event(private, IIO_EVENT_CODE_AD7816_OTI,
+		       iio_get_time_ns(private));
 	return IRQ_HANDLED;
 }
 
 static ssize_t ad7816_show_oti(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+			       struct device_attribute *attr,
+			       char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7816_chip_info *chip = iio_priv(indio_dev);
@@ -280,9 +287,9 @@ static ssize_t ad7816_show_oti(struct device *dev,
 }
 
 static inline ssize_t ad7816_set_oti(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				     struct device_attribute *attr,
+				     const char *buf,
+				     size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad7816_chip_info *chip = iio_priv(indio_dev);
@@ -298,14 +305,14 @@ static inline ssize_t ad7816_set_oti(struct device *dev,
 		dev_err(dev, "Invalid oti channel id %d.\n", chip->channel_id);
 		return -EINVAL;
 	} else if (chip->channel_id == 0) {
-		if (ret || value < AD7816_BOUND_VALUE_MIN ||
-			value > AD7816_BOUND_VALUE_MAX)
+		if (value < AD7816_BOUND_VALUE_MIN ||
+		    value > AD7816_BOUND_VALUE_MAX)
 			return -EINVAL;
 
 		data = (u8)(value - AD7816_BOUND_VALUE_MIN +
 			AD7816_BOUND_VALUE_BASE);
 	} else {
-		if (ret || value < AD7816_BOUND_VALUE_BASE || value > 255)
+		if (value < AD7816_BOUND_VALUE_BASE || value > 255)
 			return -EINVAL;
 
 		data = (u8)value;
@@ -320,7 +327,7 @@ static inline ssize_t ad7816_set_oti(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(oti, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(oti, 0644,
 		       ad7816_show_oti, ad7816_set_oti, 0);
 
 static struct attribute *ad7816_event_attributes[] = {
@@ -328,7 +335,7 @@ static struct attribute *ad7816_event_attributes[] = {
 	NULL,
 };
 
-static struct attribute_group ad7816_event_attribute_group = {
+static const struct attribute_group ad7816_event_attribute_group = {
 	.attrs = ad7816_event_attributes,
 	.name = "events",
 };
@@ -336,7 +343,6 @@ static struct attribute_group ad7816_event_attribute_group = {
 static const struct iio_info ad7816_info = {
 	.attrs = &ad7816_attribute_group,
 	.event_attrs = &ad7816_event_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 /*
@@ -347,56 +353,45 @@ static int ad7816_probe(struct spi_device *spi_dev)
 {
 	struct ad7816_chip_info *chip;
 	struct iio_dev *indio_dev;
-	unsigned short *pins = spi_dev->dev.platform_data;
-	int ret = 0;
-	int i;
-
-	if (!pins) {
-		dev_err(&spi_dev->dev, "No necessary GPIO platform data.\n");
-		return -EINVAL;
-	}
+	int i, ret;
 
 	indio_dev = devm_iio_device_alloc(&spi_dev->dev, sizeof(*chip));
 	if (!indio_dev)
 		return -ENOMEM;
 	chip = iio_priv(indio_dev);
-	/* this is only used for device removal purposes */
-	dev_set_drvdata(&spi_dev->dev, indio_dev);
 
 	chip->spi_dev = spi_dev;
 	for (i = 0; i <= AD7816_CS_MAX; i++)
 		chip->oti_data[i] = 203;
-	chip->rdwr_pin = pins[0];
-	chip->convert_pin = pins[1];
-	chip->busy_pin = pins[2];
-
-	ret = devm_gpio_request(&spi_dev->dev, chip->rdwr_pin,
-					spi_get_device_id(spi_dev)->name);
-	if (ret) {
-		dev_err(&spi_dev->dev, "Fail to request rdwr gpio PIN %d.\n",
-			chip->rdwr_pin);
+
+	chip->id = spi_get_device_id(spi_dev)->driver_data;
+	chip->rdwr_pin = devm_gpiod_get(&spi_dev->dev, "rdwr", GPIOD_OUT_HIGH);
+	if (IS_ERR(chip->rdwr_pin)) {
+		ret = PTR_ERR(chip->rdwr_pin);
+		dev_err(&spi_dev->dev, "Failed to request rdwr GPIO: %d\n",
+			ret);
 		return ret;
 	}
-	gpio_direction_input(chip->rdwr_pin);
-	ret = devm_gpio_request(&spi_dev->dev, chip->convert_pin,
-					spi_get_device_id(spi_dev)->name);
-	if (ret) {
-		dev_err(&spi_dev->dev, "Fail to request convert gpio PIN %d.\n",
-			chip->convert_pin);
+	chip->convert_pin = devm_gpiod_get(&spi_dev->dev, "convert",
+					   GPIOD_OUT_HIGH);
+	if (IS_ERR(chip->convert_pin)) {
+		ret = PTR_ERR(chip->convert_pin);
+		dev_err(&spi_dev->dev, "Failed to request convert GPIO: %d\n",
+			ret);
 		return ret;
 	}
-	gpio_direction_input(chip->convert_pin);
-	ret = devm_gpio_request(&spi_dev->dev, chip->busy_pin,
-					spi_get_device_id(spi_dev)->name);
-	if (ret) {
-		dev_err(&spi_dev->dev, "Fail to request busy gpio PIN %d.\n",
-			chip->busy_pin);
-		return ret;
+	if (chip->id == ID_AD7816 || chip->id == ID_AD7817) {
+		chip->busy_pin = devm_gpiod_get(&spi_dev->dev, "busy",
+						GPIOD_IN);
+		if (IS_ERR(chip->busy_pin)) {
+			ret = PTR_ERR(chip->busy_pin);
+			dev_err(&spi_dev->dev, "Failed to request busy GPIO: %d\n",
+				ret);
+			return ret;
+		}
 	}
-	gpio_direction_input(chip->busy_pin);
 
 	indio_dev->name = spi_get_device_id(spi_dev)->name;
-	indio_dev->dev.parent = &spi_dev->dev;
 	indio_dev->info = &ad7816_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
@@ -417,16 +412,24 @@ static int ad7816_probe(struct spi_device *spi_dev)
 		return ret;
 
 	dev_info(&spi_dev->dev, "%s temperature sensor and ADC registered.\n",
-			 indio_dev->name);
+		 indio_dev->name);
 
 	return 0;
 }
 
+static const struct of_device_id ad7816_of_match[] = {
+	{ .compatible = "adi,ad7816", },
+	{ .compatible = "adi,ad7817", },
+	{ .compatible = "adi,ad7818", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ad7816_of_match);
+
 static const struct spi_device_id ad7816_id[] = {
-	{ "ad7816", 0 },
-	{ "ad7817", 0 },
-	{ "ad7818", 0 },
-	{}
+	{ "ad7816", ID_AD7816 },
+	{ "ad7817", ID_AD7817 },
+	{ "ad7818", ID_AD7818 },
+	{ }
 };
 
 MODULE_DEVICE_TABLE(spi, ad7816_id);
@@ -434,7 +437,7 @@ MODULE_DEVICE_TABLE(spi, ad7816_id);
 static struct spi_driver ad7816_driver = {
 	.driver = {
 		.name = "ad7816",
-		.owner = THIS_MODULE,
+		.of_match_table = ad7816_of_match,
 	},
 	.probe = ad7816_probe,
 	.id_table = ad7816_id,
diff --git a/drivers/staging/iio/adc/lpc32xx_adc.c b/drivers/staging/iio/adc/lpc32xx_adc.c
deleted file mode 100644
index 5331c442fcfc..000000000000
--- a/drivers/staging/iio/adc/lpc32xx_adc.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- *  lpc32xx_adc.c - Support for ADC in LPC32XX
- *
- *  3-channel, 10-bit ADC
- *
- *  Copyright (C) 2011, 2012 Roland Stigge <stigge@antcom.de>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/completion.h>
-#include <linux/of.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-/*
- * LPC32XX registers definitions
- */
-#define LPC32XX_ADC_SELECT(x)	((x) + 0x04)
-#define LPC32XX_ADC_CTRL(x)	((x) + 0x08)
-#define LPC32XX_ADC_VALUE(x)	((x) + 0x48)
-
-/* Bit definitions for LPC32XX_ADC_SELECT: */
-#define AD_REFm         0x00000200 /* constant, always write this value! */
-#define AD_REFp		0x00000080 /* constant, always write this value! */
-#define AD_IN		0x00000010 /* multiple of this is the */
-				   /* channel number: 0, 1, 2 */
-#define AD_INTERNAL	0x00000004 /* constant, always write this value! */
-
-/* Bit definitions for LPC32XX_ADC_CTRL: */
-#define AD_STROBE	0x00000002
-#define AD_PDN_CTRL	0x00000004
-
-/* Bit definitions for LPC32XX_ADC_VALUE: */
-#define ADC_VALUE_MASK	0x000003FF
-
-#define MOD_NAME "lpc32xx-adc"
-
-struct lpc32xx_adc_info {
-	void __iomem *adc_base;
-	struct clk *clk;
-	struct completion completion;
-
-	u32 value;
-};
-
-static int lpc32xx_read_raw(struct iio_dev *indio_dev,
-				struct iio_chan_spec const *chan,
-				int *val,
-				int *val2,
-				long mask)
-{
-	struct lpc32xx_adc_info *info = iio_priv(indio_dev);
-
-	if (mask == IIO_CHAN_INFO_RAW) {
-		mutex_lock(&indio_dev->mlock);
-		clk_enable(info->clk);
-		/* Measurement setup */
-		__raw_writel(AD_INTERNAL | (chan->address) | AD_REFp | AD_REFm,
-			LPC32XX_ADC_SELECT(info->adc_base));
-		/* Trigger conversion */
-		__raw_writel(AD_PDN_CTRL | AD_STROBE,
-			LPC32XX_ADC_CTRL(info->adc_base));
-		wait_for_completion(&info->completion); /* set by ISR */
-		clk_disable(info->clk);
-		*val = info->value;
-		mutex_unlock(&indio_dev->mlock);
-
-		return IIO_VAL_INT;
-	}
-
-	return -EINVAL;
-}
-
-static const struct iio_info lpc32xx_adc_iio_info = {
-	.read_raw = &lpc32xx_read_raw,
-	.driver_module = THIS_MODULE,
-};
-
-#define LPC32XX_ADC_CHANNEL(_index) {			\
-	.type = IIO_VOLTAGE,				\
-	.indexed = 1,					\
-	.channel = _index,				\
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
-	.address = AD_IN * _index,			\
-	.scan_index = _index,				\
-}
-
-static const struct iio_chan_spec lpc32xx_adc_iio_channels[] = {
-	LPC32XX_ADC_CHANNEL(0),
-	LPC32XX_ADC_CHANNEL(1),
-	LPC32XX_ADC_CHANNEL(2),
-};
-
-static irqreturn_t lpc32xx_adc_isr(int irq, void *dev_id)
-{
-	struct lpc32xx_adc_info *info = dev_id;
-
-	/* Read value and clear irq */
-	info->value = __raw_readl(LPC32XX_ADC_VALUE(info->adc_base)) &
-				ADC_VALUE_MASK;
-	complete(&info->completion);
-
-	return IRQ_HANDLED;
-}
-
-static int lpc32xx_adc_probe(struct platform_device *pdev)
-{
-	struct lpc32xx_adc_info *info = NULL;
-	struct resource *res;
-	int retval = -ENODEV;
-	struct iio_dev *iodev = NULL;
-	int irq;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "failed to get platform I/O memory\n");
-		return -EBUSY;
-	}
-
-	iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
-	if (!iodev)
-		return -ENOMEM;
-
-	info = iio_priv(iodev);
-
-	info->adc_base = devm_ioremap(&pdev->dev, res->start,
-						resource_size(res));
-	if (!info->adc_base) {
-		dev_err(&pdev->dev, "failed mapping memory\n");
-		return -EBUSY;
-	}
-
-	info->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(info->clk)) {
-		dev_err(&pdev->dev, "failed getting clock\n");
-		return PTR_ERR(info->clk);
-	}
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
-		dev_err(&pdev->dev, "failed getting interrupt resource\n");
-		return -EINVAL;
-	}
-
-	retval = devm_request_irq(&pdev->dev, irq, lpc32xx_adc_isr, 0,
-								MOD_NAME, info);
-	if (retval < 0) {
-		dev_err(&pdev->dev, "failed requesting interrupt\n");
-		return retval;
-	}
-
-	platform_set_drvdata(pdev, iodev);
-
-	init_completion(&info->completion);
-
-	iodev->name = MOD_NAME;
-	iodev->dev.parent = &pdev->dev;
-	iodev->info = &lpc32xx_adc_iio_info;
-	iodev->modes = INDIO_DIRECT_MODE;
-	iodev->channels = lpc32xx_adc_iio_channels;
-	iodev->num_channels = ARRAY_SIZE(lpc32xx_adc_iio_channels);
-
-	retval = devm_iio_device_register(&pdev->dev, iodev);
-	if (retval)
-		return retval;
-
-	dev_info(&pdev->dev, "LPC32XX ADC driver loaded, IRQ %d\n", irq);
-
-	return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id lpc32xx_adc_match[] = {
-	{ .compatible = "nxp,lpc3220-adc" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, lpc32xx_adc_match);
-#endif
-
-static struct platform_driver lpc32xx_adc_driver = {
-	.probe		= lpc32xx_adc_probe,
-	.driver		= {
-		.name	= MOD_NAME,
-		.of_match_table = of_match_ptr(lpc32xx_adc_match),
-	},
-};
-
-module_platform_driver(lpc32xx_adc_driver);
-
-MODULE_AUTHOR("Roland Stigge <stigge@antcom.de>");
-MODULE_DESCRIPTION("LPC32XX ADC driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
deleted file mode 100644
index 3f7715c9968b..000000000000
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ /dev/null
@@ -1,1752 +0,0 @@
-/*
- * Freescale MXS LRADC driver
- *
- * Copyright (c) 2012 DENX Software Engineering, GmbH.
- * Marek Vasut <marex@denx.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/bitops.h>
-#include <linux/clk.h>
-#include <linux/completion.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/input.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/stmp_device.h>
-#include <linux/sysfs.h>
-
-#include <linux/iio/buffer.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/trigger.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
-#include <linux/iio/sysfs.h>
-
-#define DRIVER_NAME		"mxs-lradc"
-
-#define LRADC_MAX_DELAY_CHANS	4
-#define LRADC_MAX_MAPPED_CHANS	8
-#define LRADC_MAX_TOTAL_CHANS	16
-
-#define LRADC_DELAY_TIMER_HZ	2000
-
-/*
- * Make this runtime configurable if necessary. Currently, if the buffered mode
- * is enabled, the LRADC takes LRADC_DELAY_TIMER_LOOP samples of data before
- * triggering IRQ. The sampling happens every (LRADC_DELAY_TIMER_PER / 2000)
- * seconds. The result is that the samples arrive every 500mS.
- */
-#define LRADC_DELAY_TIMER_PER	200
-#define LRADC_DELAY_TIMER_LOOP	5
-
-/*
- * Once the pen touches the touchscreen, the touchscreen switches from
- * IRQ-driven mode to polling mode to prevent interrupt storm. The polling
- * is realized by worker thread, which is called every 20 or so milliseconds.
- * This gives the touchscreen enough fluency and does not strain the system
- * too much.
- */
-#define LRADC_TS_SAMPLE_DELAY_MS	5
-
-/*
- * The LRADC reads the following amount of samples from each touchscreen
- * channel and the driver then computes average of these.
- */
-#define LRADC_TS_SAMPLE_AMOUNT		4
-
-enum mxs_lradc_id {
-	IMX23_LRADC,
-	IMX28_LRADC,
-};
-
-static const char * const mx23_lradc_irq_names[] = {
-	"mxs-lradc-touchscreen",
-	"mxs-lradc-channel0",
-	"mxs-lradc-channel1",
-	"mxs-lradc-channel2",
-	"mxs-lradc-channel3",
-	"mxs-lradc-channel4",
-	"mxs-lradc-channel5",
-	"mxs-lradc-channel6",
-	"mxs-lradc-channel7",
-};
-
-static const char * const mx28_lradc_irq_names[] = {
-	"mxs-lradc-touchscreen",
-	"mxs-lradc-thresh0",
-	"mxs-lradc-thresh1",
-	"mxs-lradc-channel0",
-	"mxs-lradc-channel1",
-	"mxs-lradc-channel2",
-	"mxs-lradc-channel3",
-	"mxs-lradc-channel4",
-	"mxs-lradc-channel5",
-	"mxs-lradc-channel6",
-	"mxs-lradc-channel7",
-	"mxs-lradc-button0",
-	"mxs-lradc-button1",
-};
-
-struct mxs_lradc_of_config {
-	const int		irq_count;
-	const char * const	*irq_name;
-	const uint32_t		*vref_mv;
-};
-
-#define VREF_MV_BASE 1850
-
-static const uint32_t mx23_vref_mv[LRADC_MAX_TOTAL_CHANS] = {
-	VREF_MV_BASE,		/* CH0 */
-	VREF_MV_BASE,		/* CH1 */
-	VREF_MV_BASE,		/* CH2 */
-	VREF_MV_BASE,		/* CH3 */
-	VREF_MV_BASE,		/* CH4 */
-	VREF_MV_BASE,		/* CH5 */
-	VREF_MV_BASE * 2,	/* CH6 VDDIO */
-	VREF_MV_BASE * 4,	/* CH7 VBATT */
-	VREF_MV_BASE,		/* CH8 Temp sense 0 */
-	VREF_MV_BASE,		/* CH9 Temp sense 1 */
-	VREF_MV_BASE,		/* CH10 */
-	VREF_MV_BASE,		/* CH11 */
-	VREF_MV_BASE,		/* CH12 USB_DP */
-	VREF_MV_BASE,		/* CH13 USB_DN */
-	VREF_MV_BASE,		/* CH14 VBG */
-	VREF_MV_BASE * 4,	/* CH15 VDD5V */
-};
-
-static const uint32_t mx28_vref_mv[LRADC_MAX_TOTAL_CHANS] = {
-	VREF_MV_BASE,		/* CH0 */
-	VREF_MV_BASE,		/* CH1 */
-	VREF_MV_BASE,		/* CH2 */
-	VREF_MV_BASE,		/* CH3 */
-	VREF_MV_BASE,		/* CH4 */
-	VREF_MV_BASE,		/* CH5 */
-	VREF_MV_BASE,		/* CH6 */
-	VREF_MV_BASE * 4,	/* CH7 VBATT */
-	VREF_MV_BASE,		/* CH8 Temp sense 0 */
-	VREF_MV_BASE,		/* CH9 Temp sense 1 */
-	VREF_MV_BASE * 2,	/* CH10 VDDIO */
-	VREF_MV_BASE,		/* CH11 VTH */
-	VREF_MV_BASE * 2,	/* CH12 VDDA */
-	VREF_MV_BASE,		/* CH13 VDDD */
-	VREF_MV_BASE,		/* CH14 VBG */
-	VREF_MV_BASE * 4,	/* CH15 VDD5V */
-};
-
-static const struct mxs_lradc_of_config mxs_lradc_of_config[] = {
-	[IMX23_LRADC] = {
-		.irq_count	= ARRAY_SIZE(mx23_lradc_irq_names),
-		.irq_name	= mx23_lradc_irq_names,
-		.vref_mv	= mx23_vref_mv,
-	},
-	[IMX28_LRADC] = {
-		.irq_count	= ARRAY_SIZE(mx28_lradc_irq_names),
-		.irq_name	= mx28_lradc_irq_names,
-		.vref_mv	= mx28_vref_mv,
-	},
-};
-
-enum mxs_lradc_ts {
-	MXS_LRADC_TOUCHSCREEN_NONE = 0,
-	MXS_LRADC_TOUCHSCREEN_4WIRE,
-	MXS_LRADC_TOUCHSCREEN_5WIRE,
-};
-
-/*
- * Touchscreen handling
- */
-enum lradc_ts_plate {
-	LRADC_TOUCH = 0,
-	LRADC_SAMPLE_X,
-	LRADC_SAMPLE_Y,
-	LRADC_SAMPLE_PRESSURE,
-	LRADC_SAMPLE_VALID,
-};
-
-enum mxs_lradc_divbytwo {
-	MXS_LRADC_DIV_DISABLED = 0,
-	MXS_LRADC_DIV_ENABLED,
-};
-
-struct mxs_lradc_scale {
-	unsigned int		integer;
-	unsigned int		nano;
-};
-
-struct mxs_lradc {
-	struct device		*dev;
-	void __iomem		*base;
-	int			irq[13];
-
-	struct clk		*clk;
-
-	uint32_t		*buffer;
-	struct iio_trigger	*trig;
-
-	struct mutex		lock;
-
-	struct completion	completion;
-
-	const uint32_t		*vref_mv;
-	struct mxs_lradc_scale	scale_avail[LRADC_MAX_TOTAL_CHANS][2];
-	unsigned long		is_divided;
-
-	/*
-	 * When the touchscreen is enabled, we give it two private virtual
-	 * channels: #6 and #7. This means that only 6 virtual channels (instead
-	 * of 8) will be available for buffered capture.
-	 */
-#define TOUCHSCREEN_VCHANNEL1		7
-#define TOUCHSCREEN_VCHANNEL2		6
-#define BUFFER_VCHANS_LIMITED		0x3f
-#define BUFFER_VCHANS_ALL		0xff
-	u8			buffer_vchans;
-
-	/*
-	 * Furthermore, certain LRADC channels are shared between touchscreen
-	 * and/or touch-buttons and generic LRADC block. Therefore when using
-	 * either of these, these channels are not available for the regular
-	 * sampling. The shared channels are as follows:
-	 *
-	 * CH0 -- Touch button #0
-	 * CH1 -- Touch button #1
-	 * CH2 -- Touch screen XPUL
-	 * CH3 -- Touch screen YPLL
-	 * CH4 -- Touch screen XNUL
-	 * CH5 -- Touch screen YNLR
-	 * CH6 -- Touch screen WIPER (5-wire only)
-	 *
-	 * The bit fields below represents which parts of the LRADC block are
-	 * switched into special mode of operation. These channels can not
-	 * be sampled as regular LRADC channels. The driver will refuse any
-	 * attempt to sample these channels.
-	 */
-#define CHAN_MASK_TOUCHBUTTON		(BIT(1) | BIT(0))
-#define CHAN_MASK_TOUCHSCREEN_4WIRE	(0xf << 2)
-#define CHAN_MASK_TOUCHSCREEN_5WIRE	(0x1f << 2)
-	enum mxs_lradc_ts	use_touchscreen;
-	bool			use_touchbutton;
-
-	struct input_dev	*ts_input;
-
-	enum mxs_lradc_id	soc;
-	enum lradc_ts_plate	cur_plate; /* state machine */
-	bool			ts_valid;
-	unsigned		ts_x_pos;
-	unsigned		ts_y_pos;
-	unsigned		ts_pressure;
-
-	/* handle touchscreen's physical behaviour */
-	/* samples per coordinate */
-	unsigned		over_sample_cnt;
-	/* time clocks between samples */
-	unsigned		over_sample_delay;
-	/* time in clocks to wait after the plates where switched */
-	unsigned		settling_delay;
-};
-
-#define	LRADC_CTRL0				0x00
-# define LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE	BIT(23)
-# define LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE	BIT(22)
-# define LRADC_CTRL0_MX28_YNNSW	/* YM */	BIT(21)
-# define LRADC_CTRL0_MX28_YPNSW	/* YP */	BIT(20)
-# define LRADC_CTRL0_MX28_YPPSW	/* YP */	BIT(19)
-# define LRADC_CTRL0_MX28_XNNSW	/* XM */	BIT(18)
-# define LRADC_CTRL0_MX28_XNPSW	/* XM */	BIT(17)
-# define LRADC_CTRL0_MX28_XPPSW	/* XP */	BIT(16)
-
-# define LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE	BIT(20)
-# define LRADC_CTRL0_MX23_YM			BIT(19)
-# define LRADC_CTRL0_MX23_XM			BIT(18)
-# define LRADC_CTRL0_MX23_YP			BIT(17)
-# define LRADC_CTRL0_MX23_XP			BIT(16)
-
-# define LRADC_CTRL0_MX28_PLATE_MASK \
-		(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE | \
-		LRADC_CTRL0_MX28_YNNSW | LRADC_CTRL0_MX28_YPNSW | \
-		LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW | \
-		LRADC_CTRL0_MX28_XNPSW | LRADC_CTRL0_MX28_XPPSW)
-
-# define LRADC_CTRL0_MX23_PLATE_MASK \
-		(LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE | \
-		LRADC_CTRL0_MX23_YM | LRADC_CTRL0_MX23_XM | \
-		LRADC_CTRL0_MX23_YP | LRADC_CTRL0_MX23_XP)
-
-#define	LRADC_CTRL1				0x10
-#define	LRADC_CTRL1_TOUCH_DETECT_IRQ_EN		BIT(24)
-#define	LRADC_CTRL1_LRADC_IRQ_EN(n)		(1 << ((n) + 16))
-#define	LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK	(0x1fff << 16)
-#define	LRADC_CTRL1_MX23_LRADC_IRQ_EN_MASK	(0x01ff << 16)
-#define	LRADC_CTRL1_LRADC_IRQ_EN_OFFSET		16
-#define	LRADC_CTRL1_TOUCH_DETECT_IRQ		BIT(8)
-#define	LRADC_CTRL1_LRADC_IRQ(n)		(1 << (n))
-#define	LRADC_CTRL1_MX28_LRADC_IRQ_MASK		0x1fff
-#define	LRADC_CTRL1_MX23_LRADC_IRQ_MASK		0x01ff
-#define	LRADC_CTRL1_LRADC_IRQ_OFFSET		0
-
-#define	LRADC_CTRL2				0x20
-#define	LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET	24
-#define	LRADC_CTRL2_TEMPSENSE_PWD		BIT(15)
-
-#define	LRADC_STATUS				0x40
-#define	LRADC_STATUS_TOUCH_DETECT_RAW		BIT(0)
-
-#define	LRADC_CH(n)				(0x50 + (0x10 * (n)))
-#define	LRADC_CH_ACCUMULATE			BIT(29)
-#define	LRADC_CH_NUM_SAMPLES_MASK		(0x1f << 24)
-#define	LRADC_CH_NUM_SAMPLES_OFFSET		24
-#define	LRADC_CH_NUM_SAMPLES(x) \
-				((x) << LRADC_CH_NUM_SAMPLES_OFFSET)
-#define	LRADC_CH_VALUE_MASK			0x3ffff
-#define	LRADC_CH_VALUE_OFFSET			0
-
-#define	LRADC_DELAY(n)				(0xd0 + (0x10 * (n)))
-#define	LRADC_DELAY_TRIGGER_LRADCS_MASK		(0xff << 24)
-#define	LRADC_DELAY_TRIGGER_LRADCS_OFFSET	24
-#define	LRADC_DELAY_TRIGGER(x) \
-				(((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
-				LRADC_DELAY_TRIGGER_LRADCS_MASK)
-#define	LRADC_DELAY_KICK			(1 << 20)
-#define	LRADC_DELAY_TRIGGER_DELAYS_MASK		(0xf << 16)
-#define	LRADC_DELAY_TRIGGER_DELAYS_OFFSET	16
-#define	LRADC_DELAY_TRIGGER_DELAYS(x) \
-				(((x) << LRADC_DELAY_TRIGGER_DELAYS_OFFSET) & \
-				LRADC_DELAY_TRIGGER_DELAYS_MASK)
-#define	LRADC_DELAY_LOOP_COUNT_MASK		(0x1f << 11)
-#define	LRADC_DELAY_LOOP_COUNT_OFFSET		11
-#define	LRADC_DELAY_LOOP(x) \
-				(((x) << LRADC_DELAY_LOOP_COUNT_OFFSET) & \
-				LRADC_DELAY_LOOP_COUNT_MASK)
-#define	LRADC_DELAY_DELAY_MASK			0x7ff
-#define	LRADC_DELAY_DELAY_OFFSET		0
-#define	LRADC_DELAY_DELAY(x) \
-				(((x) << LRADC_DELAY_DELAY_OFFSET) & \
-				LRADC_DELAY_DELAY_MASK)
-
-#define	LRADC_CTRL4				0x140
-#define	LRADC_CTRL4_LRADCSELECT_MASK(n)		(0xf << ((n) * 4))
-#define	LRADC_CTRL4_LRADCSELECT_OFFSET(n)	((n) * 4)
-#define	LRADC_CTRL4_LRADCSELECT(n, x) \
-				(((x) << LRADC_CTRL4_LRADCSELECT_OFFSET(n)) & \
-				LRADC_CTRL4_LRADCSELECT_MASK(n))
-
-#define LRADC_RESOLUTION			12
-#define LRADC_SINGLE_SAMPLE_MASK		((1 << LRADC_RESOLUTION) - 1)
-
-static void mxs_lradc_reg_set(struct mxs_lradc *lradc, u32 val, u32 reg)
-{
-	writel(val, lradc->base + reg + STMP_OFFSET_REG_SET);
-}
-
-static void mxs_lradc_reg_clear(struct mxs_lradc *lradc, u32 val, u32 reg)
-{
-	writel(val, lradc->base + reg + STMP_OFFSET_REG_CLR);
-}
-
-static void mxs_lradc_reg_wrt(struct mxs_lradc *lradc, u32 val, u32 reg)
-{
-	writel(val, lradc->base + reg);
-}
-
-static u32 mxs_lradc_plate_mask(struct mxs_lradc *lradc)
-{
-	if (lradc->soc == IMX23_LRADC)
-		return LRADC_CTRL0_MX23_PLATE_MASK;
-	return LRADC_CTRL0_MX28_PLATE_MASK;
-}
-
-static u32 mxs_lradc_irq_en_mask(struct mxs_lradc *lradc)
-{
-	if (lradc->soc == IMX23_LRADC)
-		return LRADC_CTRL1_MX23_LRADC_IRQ_EN_MASK;
-	return LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK;
-}
-
-static u32 mxs_lradc_irq_mask(struct mxs_lradc *lradc)
-{
-	if (lradc->soc == IMX23_LRADC)
-		return LRADC_CTRL1_MX23_LRADC_IRQ_MASK;
-	return LRADC_CTRL1_MX28_LRADC_IRQ_MASK;
-}
-
-static u32 mxs_lradc_touch_detect_bit(struct mxs_lradc *lradc)
-{
-	if (lradc->soc == IMX23_LRADC)
-		return LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE;
-	return LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE;
-}
-
-static u32 mxs_lradc_drive_x_plate(struct mxs_lradc *lradc)
-{
-	if (lradc->soc == IMX23_LRADC)
-		return LRADC_CTRL0_MX23_XP | LRADC_CTRL0_MX23_XM;
-	return LRADC_CTRL0_MX28_XPPSW | LRADC_CTRL0_MX28_XNNSW;
-}
-
-static u32 mxs_lradc_drive_y_plate(struct mxs_lradc *lradc)
-{
-	if (lradc->soc == IMX23_LRADC)
-		return LRADC_CTRL0_MX23_YP | LRADC_CTRL0_MX23_YM;
-	return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_YNNSW;
-}
-
-static u32 mxs_lradc_drive_pressure(struct mxs_lradc *lradc)
-{
-	if (lradc->soc == IMX23_LRADC)
-		return LRADC_CTRL0_MX23_YP | LRADC_CTRL0_MX23_XM;
-	return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
-}
-
-static bool mxs_lradc_check_touch_event(struct mxs_lradc *lradc)
-{
-	return !!(readl(lradc->base + LRADC_STATUS) &
-					LRADC_STATUS_TOUCH_DETECT_RAW);
-}
-
-static void mxs_lradc_map_channel(struct mxs_lradc *lradc, unsigned vch,
-				  unsigned ch)
-{
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL4_LRADCSELECT_MASK(vch),
-				LRADC_CTRL4);
-	mxs_lradc_reg_set(lradc, LRADC_CTRL4_LRADCSELECT(vch, ch), LRADC_CTRL4);
-}
-
-static void mxs_lradc_setup_ts_channel(struct mxs_lradc *lradc, unsigned ch)
-{
-	/*
-	 * prepare for oversampling conversion
-	 *
-	 * from the datasheet:
-	 * "The ACCUMULATE bit in the appropriate channel register
-	 * HW_LRADC_CHn must be set to 1 if NUM_SAMPLES is greater then 0;
-	 * otherwise, the IRQs will not fire."
-	 */
-	mxs_lradc_reg_wrt(lradc, LRADC_CH_ACCUMULATE |
-			LRADC_CH_NUM_SAMPLES(lradc->over_sample_cnt - 1),
-			LRADC_CH(ch));
-
-	/* from the datasheet:
-	 * "Software must clear this register in preparation for a
-	 * multi-cycle accumulation.
-	 */
-	mxs_lradc_reg_clear(lradc, LRADC_CH_VALUE_MASK, LRADC_CH(ch));
-
-	/*
-	 * prepare the delay/loop unit according to the oversampling count
-	 *
-	 * from the datasheet:
-	 * "The DELAY fields in HW_LRADC_DELAY0, HW_LRADC_DELAY1,
-	 * HW_LRADC_DELAY2, and HW_LRADC_DELAY3 must be non-zero; otherwise,
-	 * the LRADC will not trigger the delay group."
-	 */
-	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(1 << ch) |
-		LRADC_DELAY_TRIGGER_DELAYS(0) |
-		LRADC_DELAY_LOOP(lradc->over_sample_cnt - 1) |
-		LRADC_DELAY_DELAY(lradc->over_sample_delay - 1),
-			LRADC_DELAY(3));
-
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(ch), LRADC_CTRL1);
-
-	/*
-	 * after changing the touchscreen plates setting
-	 * the signals need some initial time to settle. Start the
-	 * SoC's delay unit and start the conversion later
-	 * and automatically.
-	 */
-	mxs_lradc_reg_wrt(lradc,
-		LRADC_DELAY_TRIGGER(0) | /* don't trigger ADC */
-		LRADC_DELAY_TRIGGER_DELAYS(BIT(3)) | /* trigger DELAY unit#3 */
-		LRADC_DELAY_KICK |
-		LRADC_DELAY_DELAY(lradc->settling_delay),
-			LRADC_DELAY(2));
-}
-
-/*
- * Pressure detection is special:
- * We want to do both required measurements for the pressure detection in
- * one turn. Use the hardware features to chain both conversions and let the
- * hardware report one interrupt if both conversions are done
- */
-static void mxs_lradc_setup_ts_pressure(struct mxs_lradc *lradc, unsigned ch1,
-							unsigned ch2)
-{
-	u32 reg;
-
-	/*
-	 * prepare for oversampling conversion
-	 *
-	 * from the datasheet:
-	 * "The ACCUMULATE bit in the appropriate channel register
-	 * HW_LRADC_CHn must be set to 1 if NUM_SAMPLES is greater then 0;
-	 * otherwise, the IRQs will not fire."
-	 */
-	reg = LRADC_CH_ACCUMULATE |
-		LRADC_CH_NUM_SAMPLES(lradc->over_sample_cnt - 1);
-	mxs_lradc_reg_wrt(lradc, reg, LRADC_CH(ch1));
-	mxs_lradc_reg_wrt(lradc, reg, LRADC_CH(ch2));
-
-	/* from the datasheet:
-	 * "Software must clear this register in preparation for a
-	 * multi-cycle accumulation.
-	 */
-	mxs_lradc_reg_clear(lradc, LRADC_CH_VALUE_MASK, LRADC_CH(ch1));
-	mxs_lradc_reg_clear(lradc, LRADC_CH_VALUE_MASK, LRADC_CH(ch2));
-
-	/* prepare the delay/loop unit according to the oversampling count */
-	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(1 << ch1) |
-		LRADC_DELAY_TRIGGER(1 << ch2) | /* start both channels */
-		LRADC_DELAY_TRIGGER_DELAYS(0) |
-		LRADC_DELAY_LOOP(lradc->over_sample_cnt - 1) |
-		LRADC_DELAY_DELAY(lradc->over_sample_delay - 1),
-					LRADC_DELAY(3));
-
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(ch2), LRADC_CTRL1);
-
-	/*
-	 * after changing the touchscreen plates setting
-	 * the signals need some initial time to settle. Start the
-	 * SoC's delay unit and start the conversion later
-	 * and automatically.
-	 */
-	mxs_lradc_reg_wrt(lradc,
-		LRADC_DELAY_TRIGGER(0) | /* don't trigger ADC */
-		LRADC_DELAY_TRIGGER_DELAYS(BIT(3)) | /* trigger DELAY unit#3 */
-		LRADC_DELAY_KICK |
-		LRADC_DELAY_DELAY(lradc->settling_delay), LRADC_DELAY(2));
-}
-
-static unsigned mxs_lradc_read_raw_channel(struct mxs_lradc *lradc,
-							unsigned channel)
-{
-	u32 reg;
-	unsigned num_samples, val;
-
-	reg = readl(lradc->base + LRADC_CH(channel));
-	if (reg & LRADC_CH_ACCUMULATE)
-		num_samples = lradc->over_sample_cnt;
-	else
-		num_samples = 1;
-
-	val = (reg & LRADC_CH_VALUE_MASK) >> LRADC_CH_VALUE_OFFSET;
-	return val / num_samples;
-}
-
-static unsigned mxs_lradc_read_ts_pressure(struct mxs_lradc *lradc,
-						unsigned ch1, unsigned ch2)
-{
-	u32 reg, mask;
-	unsigned pressure, m1, m2;
-
-	mask = LRADC_CTRL1_LRADC_IRQ(ch1) | LRADC_CTRL1_LRADC_IRQ(ch2);
-	reg = readl(lradc->base + LRADC_CTRL1) & mask;
-
-	while (reg != mask) {
-		reg = readl(lradc->base + LRADC_CTRL1) & mask;
-		dev_dbg(lradc->dev, "One channel is still busy: %X\n", reg);
-	}
-
-	m1 = mxs_lradc_read_raw_channel(lradc, ch1);
-	m2 = mxs_lradc_read_raw_channel(lradc, ch2);
-
-	if (m2 == 0) {
-		dev_warn(lradc->dev, "Cannot calculate pressure\n");
-		return 1 << (LRADC_RESOLUTION - 1);
-	}
-
-	/* simply scale the value from 0 ... max ADC resolution */
-	pressure = m1;
-	pressure *= (1 << LRADC_RESOLUTION);
-	pressure /= m2;
-
-	dev_dbg(lradc->dev, "Pressure = %u\n", pressure);
-	return pressure;
-}
-
-#define TS_CH_XP 2
-#define TS_CH_YP 3
-#define TS_CH_XM 4
-#define TS_CH_YM 5
-
-/*
- * YP(open)--+-------------+
- *           |             |--+
- *           |             |  |
- *    YM(-)--+-------------+  |
- *             +--------------+
- *             |              |
- *         XP(weak+)        XM(open)
- *
- * "weak+" means 200k Ohm VDDIO
- * (-) means GND
- */
-static void mxs_lradc_setup_touch_detection(struct mxs_lradc *lradc)
-{
-	/*
-	 * In order to detect a touch event the 'touch detect enable' bit
-	 * enables:
-	 *  - a weak pullup to the X+ connector
-	 *  - a strong ground at the Y- connector
-	 */
-	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
-	mxs_lradc_reg_set(lradc, mxs_lradc_touch_detect_bit(lradc),
-				LRADC_CTRL0);
-}
-
-/*
- * YP(meas)--+-------------+
- *           |             |--+
- *           |             |  |
- * YM(open)--+-------------+  |
- *             +--------------+
- *             |              |
- *           XP(+)          XM(-)
- *
- * (+) means here 1.85 V
- * (-) means here GND
- */
-static void mxs_lradc_prepare_x_pos(struct mxs_lradc *lradc)
-{
-	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
-	mxs_lradc_reg_set(lradc, mxs_lradc_drive_x_plate(lradc), LRADC_CTRL0);
-
-	lradc->cur_plate = LRADC_SAMPLE_X;
-	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL1, TS_CH_YP);
-	mxs_lradc_setup_ts_channel(lradc, TOUCHSCREEN_VCHANNEL1);
-}
-
-/*
- *   YP(+)--+-------------+
- *          |             |--+
- *          |             |  |
- *   YM(-)--+-------------+  |
- *            +--------------+
- *            |              |
- *         XP(open)        XM(meas)
- *
- * (+) means here 1.85 V
- * (-) means here GND
- */
-static void mxs_lradc_prepare_y_pos(struct mxs_lradc *lradc)
-{
-	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
-	mxs_lradc_reg_set(lradc, mxs_lradc_drive_y_plate(lradc), LRADC_CTRL0);
-
-	lradc->cur_plate = LRADC_SAMPLE_Y;
-	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL1, TS_CH_XM);
-	mxs_lradc_setup_ts_channel(lradc, TOUCHSCREEN_VCHANNEL1);
-}
-
-/*
- *    YP(+)--+-------------+
- *           |             |--+
- *           |             |  |
- * YM(meas)--+-------------+  |
- *             +--------------+
- *             |              |
- *          XP(meas)        XM(-)
- *
- * (+) means here 1.85 V
- * (-) means here GND
- */
-static void mxs_lradc_prepare_pressure(struct mxs_lradc *lradc)
-{
-	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
-	mxs_lradc_reg_set(lradc, mxs_lradc_drive_pressure(lradc), LRADC_CTRL0);
-
-	lradc->cur_plate = LRADC_SAMPLE_PRESSURE;
-	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL1, TS_CH_YM);
-	mxs_lradc_map_channel(lradc, TOUCHSCREEN_VCHANNEL2, TS_CH_XP);
-	mxs_lradc_setup_ts_pressure(lradc, TOUCHSCREEN_VCHANNEL2,
-						TOUCHSCREEN_VCHANNEL1);
-}
-
-static void mxs_lradc_enable_touch_detection(struct mxs_lradc *lradc)
-{
-	mxs_lradc_setup_touch_detection(lradc);
-
-	lradc->cur_plate = LRADC_TOUCH;
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ |
-				LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
-}
-
-static void mxs_lradc_start_touch_event(struct mxs_lradc *lradc)
-{
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
-				LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc,
-		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL1), LRADC_CTRL1);
-	/*
-	 * start with the Y-pos, because it uses nearly the same plate
-	 * settings like the touch detection
-	 */
-	mxs_lradc_prepare_y_pos(lradc);
-}
-
-static void mxs_lradc_report_ts_event(struct mxs_lradc *lradc)
-{
-	input_report_abs(lradc->ts_input, ABS_X, lradc->ts_x_pos);
-	input_report_abs(lradc->ts_input, ABS_Y, lradc->ts_y_pos);
-	input_report_abs(lradc->ts_input, ABS_PRESSURE, lradc->ts_pressure);
-	input_report_key(lradc->ts_input, BTN_TOUCH, 1);
-	input_sync(lradc->ts_input);
-}
-
-static void mxs_lradc_complete_touch_event(struct mxs_lradc *lradc)
-{
-	mxs_lradc_setup_touch_detection(lradc);
-	lradc->cur_plate = LRADC_SAMPLE_VALID;
-	/*
-	 * start a dummy conversion to burn time to settle the signals
-	 * note: we are not interested in the conversion's value
-	 */
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_CH(TOUCHSCREEN_VCHANNEL1));
-	mxs_lradc_reg_clear(lradc,
-		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
-		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2), LRADC_CTRL1);
-	mxs_lradc_reg_wrt(lradc,
-		LRADC_DELAY_TRIGGER(1 << TOUCHSCREEN_VCHANNEL1) |
-		LRADC_DELAY_KICK | LRADC_DELAY_DELAY(10), /* waste 5 ms */
-			LRADC_DELAY(2));
-}
-
-/*
- * in order to avoid false measurements, report only samples where
- * the surface is still touched after the position measurement
- */
-static void mxs_lradc_finish_touch_event(struct mxs_lradc *lradc, bool valid)
-{
-	/* if it is still touched, report the sample */
-	if (valid && mxs_lradc_check_touch_event(lradc)) {
-		lradc->ts_valid = true;
-		mxs_lradc_report_ts_event(lradc);
-	}
-
-	/* if it is even still touched, continue with the next measurement */
-	if (mxs_lradc_check_touch_event(lradc)) {
-		mxs_lradc_prepare_y_pos(lradc);
-		return;
-	}
-
-	if (lradc->ts_valid) {
-		/* signal the release */
-		lradc->ts_valid = false;
-		input_report_key(lradc->ts_input, BTN_TOUCH, 0);
-		input_sync(lradc->ts_input);
-	}
-
-	/* if it is released, wait for the next touch via IRQ */
-	lradc->cur_plate = LRADC_TOUCH;
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2));
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3));
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ |
-		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL1) |
-		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1), LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
-}
-
-/* touchscreen's state machine */
-static void mxs_lradc_handle_touch(struct mxs_lradc *lradc)
-{
-	switch (lradc->cur_plate) {
-	case LRADC_TOUCH:
-		if (mxs_lradc_check_touch_event(lradc))
-			mxs_lradc_start_touch_event(lradc);
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ,
-					LRADC_CTRL1);
-		return;
-
-	case LRADC_SAMPLE_Y:
-		lradc->ts_y_pos = mxs_lradc_read_raw_channel(lradc,
-							TOUCHSCREEN_VCHANNEL1);
-		mxs_lradc_prepare_x_pos(lradc);
-		return;
-
-	case LRADC_SAMPLE_X:
-		lradc->ts_x_pos = mxs_lradc_read_raw_channel(lradc,
-							TOUCHSCREEN_VCHANNEL1);
-		mxs_lradc_prepare_pressure(lradc);
-		return;
-
-	case LRADC_SAMPLE_PRESSURE:
-		lradc->ts_pressure = mxs_lradc_read_ts_pressure(lradc,
-							TOUCHSCREEN_VCHANNEL2,
-							TOUCHSCREEN_VCHANNEL1);
-		mxs_lradc_complete_touch_event(lradc);
-		return;
-
-	case LRADC_SAMPLE_VALID:
-		mxs_lradc_finish_touch_event(lradc, 1);
-		break;
-	}
-}
-
-/*
- * Raw I/O operations
- */
-static int mxs_lradc_read_single(struct iio_dev *iio_dev, int chan, int *val)
-{
-	struct mxs_lradc *lradc = iio_priv(iio_dev);
-	int ret;
-
-	/*
-	 * See if there is no buffered operation in progress. If there is, simply
-	 * bail out. This can be improved to support both buffered and raw IO at
-	 * the same time, yet the code becomes horribly complicated. Therefore I
-	 * applied KISS principle here.
-	 */
-	ret = mutex_trylock(&lradc->lock);
-	if (!ret)
-		return -EBUSY;
-
-	reinit_completion(&lradc->completion);
-
-	/*
-	 * No buffered operation in progress, map the channel and trigger it.
-	 * Virtual channel 0 is always used here as the others are always not
-	 * used if doing raw sampling.
-	 */
-	if (lradc->soc == IMX28_LRADC)
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(0),
-			LRADC_CTRL1);
-	mxs_lradc_reg_clear(lradc, 0x1, LRADC_CTRL0);
-
-	/* Enable / disable the divider per requirement */
-	if (test_bit(chan, &lradc->is_divided))
-		mxs_lradc_reg_set(lradc, 1 << LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET,
-			LRADC_CTRL2);
-	else
-		mxs_lradc_reg_clear(lradc,
-			1 << LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET, LRADC_CTRL2);
-
-	/* Clean the slot's previous content, then set new one. */
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL4_LRADCSELECT_MASK(0),
-			LRADC_CTRL4);
-	mxs_lradc_reg_set(lradc, chan, LRADC_CTRL4);
-
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_CH(0));
-
-	/* Enable the IRQ and start sampling the channel. */
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(0), LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc, BIT(0), LRADC_CTRL0);
-
-	/* Wait for completion on the channel, 1 second max. */
-	ret = wait_for_completion_killable_timeout(&lradc->completion, HZ);
-	if (!ret)
-		ret = -ETIMEDOUT;
-	if (ret < 0)
-		goto err;
-
-	/* Read the data. */
-	*val = readl(lradc->base + LRADC_CH(0)) & LRADC_CH_VALUE_MASK;
-	ret = IIO_VAL_INT;
-
-err:
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(0), LRADC_CTRL1);
-
-	mutex_unlock(&lradc->lock);
-
-	return ret;
-}
-
-static int mxs_lradc_read_temp(struct iio_dev *iio_dev, int *val)
-{
-	int ret, min, max;
-
-	ret = mxs_lradc_read_single(iio_dev, 8, &min);
-	if (ret != IIO_VAL_INT)
-		return ret;
-
-	ret = mxs_lradc_read_single(iio_dev, 9, &max);
-	if (ret != IIO_VAL_INT)
-		return ret;
-
-	*val = max - min;
-
-	return IIO_VAL_INT;
-}
-
-static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
-			const struct iio_chan_spec *chan,
-			int *val, int *val2, long m)
-{
-	struct mxs_lradc *lradc = iio_priv(iio_dev);
-
-	switch (m) {
-	case IIO_CHAN_INFO_RAW:
-		if (chan->type == IIO_TEMP)
-			return mxs_lradc_read_temp(iio_dev, val);
-
-		return mxs_lradc_read_single(iio_dev, chan->channel, val);
-
-	case IIO_CHAN_INFO_SCALE:
-		if (chan->type == IIO_TEMP) {
-			/* From the datasheet, we have to multiply by 1.012 and
-			 * divide by 4
-			 */
-			*val = 0;
-			*val2 = 253000;
-			return IIO_VAL_INT_PLUS_MICRO;
-		}
-
-		*val = lradc->vref_mv[chan->channel];
-		*val2 = chan->scan_type.realbits -
-			test_bit(chan->channel, &lradc->is_divided);
-		return IIO_VAL_FRACTIONAL_LOG2;
-
-	case IIO_CHAN_INFO_OFFSET:
-		if (chan->type == IIO_TEMP) {
-			/* The calculated value from the ADC is in Kelvin, we
-			 * want Celsius for hwmon so the offset is
-			 * -272.15 * scale
-			 */
-			*val = -1075;
-			*val2 = 691699;
-
-			return IIO_VAL_INT_PLUS_MICRO;
-		}
-
-		return -EINVAL;
-
-	default:
-		break;
-	}
-
-	return -EINVAL;
-}
-
-static int mxs_lradc_write_raw(struct iio_dev *iio_dev,
-			       const struct iio_chan_spec *chan,
-			       int val, int val2, long m)
-{
-	struct mxs_lradc *lradc = iio_priv(iio_dev);
-	struct mxs_lradc_scale *scale_avail =
-			lradc->scale_avail[chan->channel];
-	int ret;
-
-	ret = mutex_trylock(&lradc->lock);
-	if (!ret)
-		return -EBUSY;
-
-	switch (m) {
-	case IIO_CHAN_INFO_SCALE:
-		ret = -EINVAL;
-		if (val == scale_avail[MXS_LRADC_DIV_DISABLED].integer &&
-		    val2 == scale_avail[MXS_LRADC_DIV_DISABLED].nano) {
-			/* divider by two disabled */
-			clear_bit(chan->channel, &lradc->is_divided);
-			ret = 0;
-		} else if (val == scale_avail[MXS_LRADC_DIV_ENABLED].integer &&
-			   val2 == scale_avail[MXS_LRADC_DIV_ENABLED].nano) {
-			/* divider by two enabled */
-			set_bit(chan->channel, &lradc->is_divided);
-			ret = 0;
-		}
-
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-
-	mutex_unlock(&lradc->lock);
-
-	return ret;
-}
-
-static int mxs_lradc_write_raw_get_fmt(struct iio_dev *iio_dev,
-				       const struct iio_chan_spec *chan,
-				       long m)
-{
-	return IIO_VAL_INT_PLUS_NANO;
-}
-
-static ssize_t mxs_lradc_show_scale_available_ch(struct device *dev,
-		struct device_attribute *attr,
-		char *buf,
-		int ch)
-{
-	struct iio_dev *iio = dev_to_iio_dev(dev);
-	struct mxs_lradc *lradc = iio_priv(iio);
-	int i, len = 0;
-
-	for (i = 0; i < ARRAY_SIZE(lradc->scale_avail[ch]); i++)
-		len += sprintf(buf + len, "%u.%09u ",
-			       lradc->scale_avail[ch][i].integer,
-			       lradc->scale_avail[ch][i].nano);
-
-	len += sprintf(buf + len, "\n");
-
-	return len;
-}
-
-static ssize_t mxs_lradc_show_scale_available(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev_attr *iio_attr = to_iio_dev_attr(attr);
-
-	return mxs_lradc_show_scale_available_ch(dev, attr, buf,
-						 iio_attr->address);
-}
-
-#define SHOW_SCALE_AVAILABLE_ATTR(ch)					\
-static IIO_DEVICE_ATTR(in_voltage##ch##_scale_available, S_IRUGO,	\
-		       mxs_lradc_show_scale_available, NULL, ch)
-
-SHOW_SCALE_AVAILABLE_ATTR(0);
-SHOW_SCALE_AVAILABLE_ATTR(1);
-SHOW_SCALE_AVAILABLE_ATTR(2);
-SHOW_SCALE_AVAILABLE_ATTR(3);
-SHOW_SCALE_AVAILABLE_ATTR(4);
-SHOW_SCALE_AVAILABLE_ATTR(5);
-SHOW_SCALE_AVAILABLE_ATTR(6);
-SHOW_SCALE_AVAILABLE_ATTR(7);
-SHOW_SCALE_AVAILABLE_ATTR(10);
-SHOW_SCALE_AVAILABLE_ATTR(11);
-SHOW_SCALE_AVAILABLE_ATTR(12);
-SHOW_SCALE_AVAILABLE_ATTR(13);
-SHOW_SCALE_AVAILABLE_ATTR(14);
-SHOW_SCALE_AVAILABLE_ATTR(15);
-
-static struct attribute *mxs_lradc_attributes[] = {
-	&iio_dev_attr_in_voltage0_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage1_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage2_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage3_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage4_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage5_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage6_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage7_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage10_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage11_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage12_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage13_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage14_scale_available.dev_attr.attr,
-	&iio_dev_attr_in_voltage15_scale_available.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group mxs_lradc_attribute_group = {
-	.attrs = mxs_lradc_attributes,
-};
-
-static const struct iio_info mxs_lradc_iio_info = {
-	.driver_module		= THIS_MODULE,
-	.read_raw		= mxs_lradc_read_raw,
-	.write_raw		= mxs_lradc_write_raw,
-	.write_raw_get_fmt	= mxs_lradc_write_raw_get_fmt,
-	.attrs			= &mxs_lradc_attribute_group,
-};
-
-static int mxs_lradc_ts_open(struct input_dev *dev)
-{
-	struct mxs_lradc *lradc = input_get_drvdata(dev);
-
-	/* Enable the touch-detect circuitry. */
-	mxs_lradc_enable_touch_detection(lradc);
-
-	return 0;
-}
-
-static void mxs_lradc_disable_ts(struct mxs_lradc *lradc)
-{
-	/* stop all interrupts from firing */
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN |
-		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL1) |
-		LRADC_CTRL1_LRADC_IRQ_EN(TOUCHSCREEN_VCHANNEL2), LRADC_CTRL1);
-
-	/* Power-down touchscreen touch-detect circuitry. */
-	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
-}
-
-static void mxs_lradc_ts_close(struct input_dev *dev)
-{
-	struct mxs_lradc *lradc = input_get_drvdata(dev);
-
-	mxs_lradc_disable_ts(lradc);
-}
-
-static int mxs_lradc_ts_register(struct mxs_lradc *lradc)
-{
-	struct input_dev *input;
-	struct device *dev = lradc->dev;
-	int ret;
-
-	if (!lradc->use_touchscreen)
-		return 0;
-
-	input = input_allocate_device();
-	if (!input)
-		return -ENOMEM;
-
-	input->name = DRIVER_NAME;
-	input->id.bustype = BUS_HOST;
-	input->dev.parent = dev;
-	input->open = mxs_lradc_ts_open;
-	input->close = mxs_lradc_ts_close;
-
-	__set_bit(EV_ABS, input->evbit);
-	__set_bit(EV_KEY, input->evbit);
-	__set_bit(BTN_TOUCH, input->keybit);
-	input_set_abs_params(input, ABS_X, 0, LRADC_SINGLE_SAMPLE_MASK, 0, 0);
-	input_set_abs_params(input, ABS_Y, 0, LRADC_SINGLE_SAMPLE_MASK, 0, 0);
-	input_set_abs_params(input, ABS_PRESSURE, 0, LRADC_SINGLE_SAMPLE_MASK,
-			     0, 0);
-
-	lradc->ts_input = input;
-	input_set_drvdata(input, lradc);
-	ret = input_register_device(input);
-	if (ret)
-		input_free_device(lradc->ts_input);
-
-	return ret;
-}
-
-static void mxs_lradc_ts_unregister(struct mxs_lradc *lradc)
-{
-	if (!lradc->use_touchscreen)
-		return;
-
-	mxs_lradc_disable_ts(lradc);
-	input_unregister_device(lradc->ts_input);
-}
-
-/*
- * IRQ Handling
- */
-static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
-{
-	struct iio_dev *iio = data;
-	struct mxs_lradc *lradc = iio_priv(iio);
-	unsigned long reg = readl(lradc->base + LRADC_CTRL1);
-	uint32_t clr_irq = mxs_lradc_irq_mask(lradc);
-	const uint32_t ts_irq_mask =
-		LRADC_CTRL1_TOUCH_DETECT_IRQ |
-		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
-		LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2);
-
-	if (!(reg & mxs_lradc_irq_mask(lradc)))
-		return IRQ_NONE;
-
-	if (lradc->use_touchscreen && (reg & ts_irq_mask)) {
-		mxs_lradc_handle_touch(lradc);
-
-		/* Make sure we don't clear the next conversion's interrupt. */
-		clr_irq &= ~(LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL1) |
-				LRADC_CTRL1_LRADC_IRQ(TOUCHSCREEN_VCHANNEL2));
-	}
-
-	if (iio_buffer_enabled(iio)) {
-		if (reg & lradc->buffer_vchans)
-			iio_trigger_poll(iio->trig);
-	} else if (reg & LRADC_CTRL1_LRADC_IRQ(0)) {
-		complete(&lradc->completion);
-	}
-
-	mxs_lradc_reg_clear(lradc, reg & clr_irq, LRADC_CTRL1);
-
-	return IRQ_HANDLED;
-}
-
-/*
- * Trigger handling
- */
-static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *iio = pf->indio_dev;
-	struct mxs_lradc *lradc = iio_priv(iio);
-	const uint32_t chan_value = LRADC_CH_ACCUMULATE |
-		((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
-	unsigned int i, j = 0;
-
-	for_each_set_bit(i, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
-		lradc->buffer[j] = readl(lradc->base + LRADC_CH(j));
-		mxs_lradc_reg_wrt(lradc, chan_value, LRADC_CH(j));
-		lradc->buffer[j] &= LRADC_CH_VALUE_MASK;
-		lradc->buffer[j] /= LRADC_DELAY_TIMER_LOOP;
-		j++;
-	}
-
-	iio_push_to_buffers_with_timestamp(iio, lradc->buffer, pf->timestamp);
-
-	iio_trigger_notify_done(iio->trig);
-
-	return IRQ_HANDLED;
-}
-
-static int mxs_lradc_configure_trigger(struct iio_trigger *trig, bool state)
-{
-	struct iio_dev *iio = iio_trigger_get_drvdata(trig);
-	struct mxs_lradc *lradc = iio_priv(iio);
-	const uint32_t st = state ? STMP_OFFSET_REG_SET : STMP_OFFSET_REG_CLR;
-
-	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_KICK, LRADC_DELAY(0) + st);
-
-	return 0;
-}
-
-static const struct iio_trigger_ops mxs_lradc_trigger_ops = {
-	.owner = THIS_MODULE,
-	.set_trigger_state = &mxs_lradc_configure_trigger,
-};
-
-static int mxs_lradc_trigger_init(struct iio_dev *iio)
-{
-	int ret;
-	struct iio_trigger *trig;
-	struct mxs_lradc *lradc = iio_priv(iio);
-
-	trig = iio_trigger_alloc("%s-dev%i", iio->name, iio->id);
-	if (trig == NULL)
-		return -ENOMEM;
-
-	trig->dev.parent = lradc->dev;
-	iio_trigger_set_drvdata(trig, iio);
-	trig->ops = &mxs_lradc_trigger_ops;
-
-	ret = iio_trigger_register(trig);
-	if (ret) {
-		iio_trigger_free(trig);
-		return ret;
-	}
-
-	lradc->trig = trig;
-
-	return 0;
-}
-
-static void mxs_lradc_trigger_remove(struct iio_dev *iio)
-{
-	struct mxs_lradc *lradc = iio_priv(iio);
-
-	iio_trigger_unregister(lradc->trig);
-	iio_trigger_free(lradc->trig);
-}
-
-static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
-{
-	struct mxs_lradc *lradc = iio_priv(iio);
-	int ret = 0, chan, ofs = 0;
-	unsigned long enable = 0;
-	uint32_t ctrl4_set = 0;
-	uint32_t ctrl4_clr = 0;
-	uint32_t ctrl1_irq = 0;
-	const uint32_t chan_value = LRADC_CH_ACCUMULATE |
-		((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET);
-	const int len = bitmap_weight(iio->active_scan_mask,
-			LRADC_MAX_TOTAL_CHANS);
-
-	if (!len)
-		return -EINVAL;
-
-	/*
-	 * Lock the driver so raw access can not be done during buffered
-	 * operation. This simplifies the code a lot.
-	 */
-	ret = mutex_trylock(&lradc->lock);
-	if (!ret)
-		return -EBUSY;
-
-	lradc->buffer = kmalloc_array(len, sizeof(*lradc->buffer), GFP_KERNEL);
-	if (!lradc->buffer) {
-		ret = -ENOMEM;
-		goto err_mem;
-	}
-
-	if (lradc->soc == IMX28_LRADC)
-		mxs_lradc_reg_clear(lradc,
-			lradc->buffer_vchans << LRADC_CTRL1_LRADC_IRQ_EN_OFFSET,
-			LRADC_CTRL1);
-	mxs_lradc_reg_clear(lradc, lradc->buffer_vchans, LRADC_CTRL0);
-
-	for_each_set_bit(chan, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
-		ctrl4_set |= chan << LRADC_CTRL4_LRADCSELECT_OFFSET(ofs);
-		ctrl4_clr |= LRADC_CTRL4_LRADCSELECT_MASK(ofs);
-		ctrl1_irq |= LRADC_CTRL1_LRADC_IRQ_EN(ofs);
-		mxs_lradc_reg_wrt(lradc, chan_value, LRADC_CH(ofs));
-		bitmap_set(&enable, ofs, 1);
-		ofs++;
-	}
-
-	mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
-					LRADC_DELAY_KICK, LRADC_DELAY(0));
-	mxs_lradc_reg_clear(lradc, ctrl4_clr, LRADC_CTRL4);
-	mxs_lradc_reg_set(lradc, ctrl4_set, LRADC_CTRL4);
-	mxs_lradc_reg_set(lradc, ctrl1_irq, LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc, enable << LRADC_DELAY_TRIGGER_LRADCS_OFFSET,
-					LRADC_DELAY(0));
-
-	return 0;
-
-err_mem:
-	mutex_unlock(&lradc->lock);
-	return ret;
-}
-
-static int mxs_lradc_buffer_postdisable(struct iio_dev *iio)
-{
-	struct mxs_lradc *lradc = iio_priv(iio);
-
-	mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
-					LRADC_DELAY_KICK, LRADC_DELAY(0));
-
-	mxs_lradc_reg_clear(lradc, lradc->buffer_vchans, LRADC_CTRL0);
-	if (lradc->soc == IMX28_LRADC)
-		mxs_lradc_reg_clear(lradc,
-			lradc->buffer_vchans << LRADC_CTRL1_LRADC_IRQ_EN_OFFSET,
-			LRADC_CTRL1);
-
-	kfree(lradc->buffer);
-	mutex_unlock(&lradc->lock);
-
-	return 0;
-}
-
-static bool mxs_lradc_validate_scan_mask(struct iio_dev *iio,
-					const unsigned long *mask)
-{
-	struct mxs_lradc *lradc = iio_priv(iio);
-	const int map_chans = bitmap_weight(mask, LRADC_MAX_TOTAL_CHANS);
-	int rsvd_chans = 0;
-	unsigned long rsvd_mask = 0;
-
-	if (lradc->use_touchbutton)
-		rsvd_mask |= CHAN_MASK_TOUCHBUTTON;
-	if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_4WIRE)
-		rsvd_mask |= CHAN_MASK_TOUCHSCREEN_4WIRE;
-	if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE)
-		rsvd_mask |= CHAN_MASK_TOUCHSCREEN_5WIRE;
-
-	if (lradc->use_touchbutton)
-		rsvd_chans++;
-	if (lradc->use_touchscreen)
-		rsvd_chans += 2;
-
-	/* Test for attempts to map channels with special mode of operation. */
-	if (bitmap_intersects(mask, &rsvd_mask, LRADC_MAX_TOTAL_CHANS))
-		return false;
-
-	/* Test for attempts to map more channels then available slots. */
-	if (map_chans + rsvd_chans > LRADC_MAX_MAPPED_CHANS)
-		return false;
-
-	return true;
-}
-
-static const struct iio_buffer_setup_ops mxs_lradc_buffer_ops = {
-	.preenable = &mxs_lradc_buffer_preenable,
-	.postenable = &iio_triggered_buffer_postenable,
-	.predisable = &iio_triggered_buffer_predisable,
-	.postdisable = &mxs_lradc_buffer_postdisable,
-	.validate_scan_mask = &mxs_lradc_validate_scan_mask,
-};
-
-/*
- * Driver initialization
- */
-
-#define MXS_ADC_CHAN(idx, chan_type, name) {			\
-	.type = (chan_type),					\
-	.indexed = 1,						\
-	.scan_index = (idx),					\
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |		\
-			      BIT(IIO_CHAN_INFO_SCALE),		\
-	.channel = (idx),					\
-	.address = (idx),					\
-	.scan_type = {						\
-		.sign = 'u',					\
-		.realbits = LRADC_RESOLUTION,			\
-		.storagebits = 32,				\
-	},							\
-	.datasheet_name = (name),				\
-}
-
-static const struct iio_chan_spec mx23_lradc_chan_spec[] = {
-	MXS_ADC_CHAN(0, IIO_VOLTAGE, "LRADC0"),
-	MXS_ADC_CHAN(1, IIO_VOLTAGE, "LRADC1"),
-	MXS_ADC_CHAN(2, IIO_VOLTAGE, "LRADC2"),
-	MXS_ADC_CHAN(3, IIO_VOLTAGE, "LRADC3"),
-	MXS_ADC_CHAN(4, IIO_VOLTAGE, "LRADC4"),
-	MXS_ADC_CHAN(5, IIO_VOLTAGE, "LRADC5"),
-	MXS_ADC_CHAN(6, IIO_VOLTAGE, "VDDIO"),
-	MXS_ADC_CHAN(7, IIO_VOLTAGE, "VBATT"),
-	/* Combined Temperature sensors */
-	{
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.scan_index = 8,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-				      BIT(IIO_CHAN_INFO_OFFSET) |
-				      BIT(IIO_CHAN_INFO_SCALE),
-		.channel = 8,
-		.scan_type = {.sign = 'u', .realbits = 18, .storagebits = 32,},
-		.datasheet_name = "TEMP_DIE",
-	},
-	/* Hidden channel to keep indexes */
-	{
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.scan_index = -1,
-		.channel = 9,
-	},
-	MXS_ADC_CHAN(10, IIO_VOLTAGE, NULL),
-	MXS_ADC_CHAN(11, IIO_VOLTAGE, NULL),
-	MXS_ADC_CHAN(12, IIO_VOLTAGE, "USB_DP"),
-	MXS_ADC_CHAN(13, IIO_VOLTAGE, "USB_DN"),
-	MXS_ADC_CHAN(14, IIO_VOLTAGE, "VBG"),
-	MXS_ADC_CHAN(15, IIO_VOLTAGE, "VDD5V"),
-};
-
-static const struct iio_chan_spec mx28_lradc_chan_spec[] = {
-	MXS_ADC_CHAN(0, IIO_VOLTAGE, "LRADC0"),
-	MXS_ADC_CHAN(1, IIO_VOLTAGE, "LRADC1"),
-	MXS_ADC_CHAN(2, IIO_VOLTAGE, "LRADC2"),
-	MXS_ADC_CHAN(3, IIO_VOLTAGE, "LRADC3"),
-	MXS_ADC_CHAN(4, IIO_VOLTAGE, "LRADC4"),
-	MXS_ADC_CHAN(5, IIO_VOLTAGE, "LRADC5"),
-	MXS_ADC_CHAN(6, IIO_VOLTAGE, "LRADC6"),
-	MXS_ADC_CHAN(7, IIO_VOLTAGE, "VBATT"),
-	/* Combined Temperature sensors */
-	{
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.scan_index = 8,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-				      BIT(IIO_CHAN_INFO_OFFSET) |
-				      BIT(IIO_CHAN_INFO_SCALE),
-		.channel = 8,
-		.scan_type = {.sign = 'u', .realbits = 18, .storagebits = 32,},
-		.datasheet_name = "TEMP_DIE",
-	},
-	/* Hidden channel to keep indexes */
-	{
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.scan_index = -1,
-		.channel = 9,
-	},
-	MXS_ADC_CHAN(10, IIO_VOLTAGE, "VDDIO"),
-	MXS_ADC_CHAN(11, IIO_VOLTAGE, "VTH"),
-	MXS_ADC_CHAN(12, IIO_VOLTAGE, "VDDA"),
-	MXS_ADC_CHAN(13, IIO_VOLTAGE, "VDDD"),
-	MXS_ADC_CHAN(14, IIO_VOLTAGE, "VBG"),
-	MXS_ADC_CHAN(15, IIO_VOLTAGE, "VDD5V"),
-};
-
-static int mxs_lradc_hw_init(struct mxs_lradc *lradc)
-{
-	/* The ADC always uses DELAY CHANNEL 0. */
-	const uint32_t adc_cfg =
-		(1 << (LRADC_DELAY_TRIGGER_DELAYS_OFFSET + 0)) |
-		(LRADC_DELAY_TIMER_PER << LRADC_DELAY_DELAY_OFFSET);
-
-	int ret = stmp_reset_block(lradc->base);
-
-	if (ret)
-		return ret;
-
-	/* Configure DELAY CHANNEL 0 for generic ADC sampling. */
-	mxs_lradc_reg_wrt(lradc, adc_cfg, LRADC_DELAY(0));
-
-	/* Disable remaining DELAY CHANNELs */
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(1));
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2));
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3));
-
-	/* Configure the touchscreen type */
-	if (lradc->soc == IMX28_LRADC) {
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
-							LRADC_CTRL0);
-
-	if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE)
-		mxs_lradc_reg_set(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
-				LRADC_CTRL0);
-	}
-
-	/* Start internal temperature sensing. */
-	mxs_lradc_reg_wrt(lradc, 0, LRADC_CTRL2);
-
-	return 0;
-}
-
-static void mxs_lradc_hw_stop(struct mxs_lradc *lradc)
-{
-	int i;
-
-	mxs_lradc_reg_clear(lradc, mxs_lradc_irq_en_mask(lradc), LRADC_CTRL1);
-
-	for (i = 0; i < LRADC_MAX_DELAY_CHANS; i++)
-		mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(i));
-}
-
-static const struct of_device_id mxs_lradc_dt_ids[] = {
-	{ .compatible = "fsl,imx23-lradc", .data = (void *)IMX23_LRADC, },
-	{ .compatible = "fsl,imx28-lradc", .data = (void *)IMX28_LRADC, },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, mxs_lradc_dt_ids);
-
-static int mxs_lradc_probe_touchscreen(struct mxs_lradc *lradc,
-						struct device_node *lradc_node)
-{
-	int ret;
-	u32 ts_wires = 0, adapt;
-
-	ret = of_property_read_u32(lradc_node, "fsl,lradc-touchscreen-wires",
-				&ts_wires);
-	if (ret)
-		return -ENODEV; /* touchscreen feature disabled */
-
-	switch (ts_wires) {
-	case 4:
-		lradc->use_touchscreen = MXS_LRADC_TOUCHSCREEN_4WIRE;
-		break;
-	case 5:
-		if (lradc->soc == IMX28_LRADC) {
-			lradc->use_touchscreen = MXS_LRADC_TOUCHSCREEN_5WIRE;
-			break;
-		}
-		/* fall through an error message for i.MX23 */
-	default:
-		dev_err(lradc->dev,
-			"Unsupported number of touchscreen wires (%d)\n",
-			ts_wires);
-		return -EINVAL;
-	}
-
-	if (of_property_read_u32(lradc_node, "fsl,ave-ctrl", &adapt)) {
-		lradc->over_sample_cnt = 4;
-	} else {
-		if (adapt < 1 || adapt > 32) {
-			dev_err(lradc->dev, "Invalid sample count (%u)\n",
-				adapt);
-			return -EINVAL;
-		}
-		lradc->over_sample_cnt = adapt;
-	}
-
-	if (of_property_read_u32(lradc_node, "fsl,ave-delay", &adapt)) {
-		lradc->over_sample_delay = 2;
-	} else {
-		if (adapt < 2 || adapt > LRADC_DELAY_DELAY_MASK + 1) {
-			dev_err(lradc->dev, "Invalid sample delay (%u)\n",
-				adapt);
-			return -EINVAL;
-		}
-		lradc->over_sample_delay = adapt;
-	}
-
-	if (of_property_read_u32(lradc_node, "fsl,settling", &adapt)) {
-		lradc->settling_delay = 10;
-	} else {
-		if (adapt < 1 || adapt > LRADC_DELAY_DELAY_MASK) {
-			dev_err(lradc->dev, "Invalid settling delay (%u)\n",
-				adapt);
-			return -EINVAL;
-		}
-		lradc->settling_delay = adapt;
-	}
-
-	return 0;
-}
-
-static int mxs_lradc_probe(struct platform_device *pdev)
-{
-	const struct of_device_id *of_id =
-		of_match_device(mxs_lradc_dt_ids, &pdev->dev);
-	const struct mxs_lradc_of_config *of_cfg =
-		&mxs_lradc_of_config[(enum mxs_lradc_id)of_id->data];
-	struct device *dev = &pdev->dev;
-	struct device_node *node = dev->of_node;
-	struct mxs_lradc *lradc;
-	struct iio_dev *iio;
-	struct resource *iores;
-	int ret = 0, touch_ret;
-	int i, s;
-	uint64_t scale_uv;
-
-	/* Allocate the IIO device. */
-	iio = devm_iio_device_alloc(dev, sizeof(*lradc));
-	if (!iio) {
-		dev_err(dev, "Failed to allocate IIO device\n");
-		return -ENOMEM;
-	}
-
-	lradc = iio_priv(iio);
-	lradc->soc = (enum mxs_lradc_id)of_id->data;
-
-	/* Grab the memory area */
-	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	lradc->dev = &pdev->dev;
-	lradc->base = devm_ioremap_resource(dev, iores);
-	if (IS_ERR(lradc->base))
-		return PTR_ERR(lradc->base);
-
-	lradc->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(lradc->clk)) {
-		dev_err(dev, "Failed to get the delay unit clock\n");
-		return PTR_ERR(lradc->clk);
-	}
-	ret = clk_prepare_enable(lradc->clk);
-	if (ret != 0) {
-		dev_err(dev, "Failed to enable the delay unit clock\n");
-		return ret;
-	}
-
-	touch_ret = mxs_lradc_probe_touchscreen(lradc, node);
-
-	if (touch_ret == 0)
-		lradc->buffer_vchans = BUFFER_VCHANS_LIMITED;
-	else
-		lradc->buffer_vchans = BUFFER_VCHANS_ALL;
-
-	/* Grab all IRQ sources */
-	for (i = 0; i < of_cfg->irq_count; i++) {
-		lradc->irq[i] = platform_get_irq(pdev, i);
-		if (lradc->irq[i] < 0) {
-			ret = lradc->irq[i];
-			goto err_clk;
-		}
-
-		ret = devm_request_irq(dev, lradc->irq[i],
-					mxs_lradc_handle_irq, 0,
-					of_cfg->irq_name[i], iio);
-		if (ret)
-			goto err_clk;
-	}
-
-	lradc->vref_mv = of_cfg->vref_mv;
-
-	platform_set_drvdata(pdev, iio);
-
-	init_completion(&lradc->completion);
-	mutex_init(&lradc->lock);
-
-	iio->name = pdev->name;
-	iio->dev.parent = &pdev->dev;
-	iio->info = &mxs_lradc_iio_info;
-	iio->modes = INDIO_DIRECT_MODE;
-	iio->masklength = LRADC_MAX_TOTAL_CHANS;
-
-	if (lradc->soc == IMX23_LRADC) {
-		iio->channels = mx23_lradc_chan_spec;
-		iio->num_channels = ARRAY_SIZE(mx23_lradc_chan_spec);
-	} else {
-		iio->channels = mx28_lradc_chan_spec;
-		iio->num_channels = ARRAY_SIZE(mx28_lradc_chan_spec);
-	}
-
-	ret = iio_triggered_buffer_setup(iio, &iio_pollfunc_store_time,
-				&mxs_lradc_trigger_handler,
-				&mxs_lradc_buffer_ops);
-	if (ret)
-		goto err_clk;
-
-	ret = mxs_lradc_trigger_init(iio);
-	if (ret)
-		goto err_trig;
-
-	/* Populate available ADC input ranges */
-	for (i = 0; i < LRADC_MAX_TOTAL_CHANS; i++) {
-		for (s = 0; s < ARRAY_SIZE(lradc->scale_avail[i]); s++) {
-			/*
-			 * [s=0] = optional divider by two disabled (default)
-			 * [s=1] = optional divider by two enabled
-			 *
-			 * The scale is calculated by doing:
-			 *   Vref >> (realbits - s)
-			 * which multiplies by two on the second component
-			 * of the array.
-			 */
-			scale_uv = ((u64)lradc->vref_mv[i] * 100000000) >>
-				   (LRADC_RESOLUTION - s);
-			lradc->scale_avail[i][s].nano =
-					do_div(scale_uv, 100000000) * 10;
-			lradc->scale_avail[i][s].integer = scale_uv;
-		}
-	}
-
-	/* Configure the hardware. */
-	ret = mxs_lradc_hw_init(lradc);
-	if (ret)
-		goto err_dev;
-
-	/* Register the touchscreen input device. */
-	if (touch_ret == 0) {
-		ret = mxs_lradc_ts_register(lradc);
-		if (ret)
-			goto err_ts_register;
-	}
-
-	/* Register IIO device. */
-	ret = iio_device_register(iio);
-	if (ret) {
-		dev_err(dev, "Failed to register IIO device\n");
-		goto err_ts;
-	}
-
-	return 0;
-
-err_ts:
-	mxs_lradc_ts_unregister(lradc);
-err_ts_register:
-	mxs_lradc_hw_stop(lradc);
-err_dev:
-	mxs_lradc_trigger_remove(iio);
-err_trig:
-	iio_triggered_buffer_cleanup(iio);
-err_clk:
-	clk_disable_unprepare(lradc->clk);
-	return ret;
-}
-
-static int mxs_lradc_remove(struct platform_device *pdev)
-{
-	struct iio_dev *iio = platform_get_drvdata(pdev);
-	struct mxs_lradc *lradc = iio_priv(iio);
-
-	iio_device_unregister(iio);
-	mxs_lradc_ts_unregister(lradc);
-	mxs_lradc_hw_stop(lradc);
-	mxs_lradc_trigger_remove(iio);
-	iio_triggered_buffer_cleanup(iio);
-
-	clk_disable_unprepare(lradc->clk);
-	return 0;
-}
-
-static struct platform_driver mxs_lradc_driver = {
-	.driver	= {
-		.name	= DRIVER_NAME,
-		.of_match_table = mxs_lradc_dt_ids,
-	},
-	.probe	= mxs_lradc_probe,
-	.remove	= mxs_lradc_remove,
-};
-
-module_platform_driver(mxs_lradc_driver);
-
-MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
-MODULE_DESCRIPTION("Freescale MXS LRADC driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
deleted file mode 100644
index c5382374ddf6..000000000000
--- a/drivers/staging/iio/adc/spear_adc.c
+++ /dev/null
@@ -1,400 +0,0 @@
-/*
- * ST SPEAr ADC driver
- *
- * Copyright 2012 Stefan Roese <sr@denx.de>
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/completion.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-/* SPEAR registers definitions */
-#define SPEAR600_ADC_SCAN_RATE_LO(x)	((x) & 0xFFFF)
-#define SPEAR600_ADC_SCAN_RATE_HI(x)	(((x) >> 0x10) & 0xFFFF)
-#define SPEAR_ADC_CLK_LOW(x)		(((x) & 0xf) << 0)
-#define SPEAR_ADC_CLK_HIGH(x)		(((x) & 0xf) << 4)
-
-/* Bit definitions for SPEAR_ADC_STATUS */
-#define SPEAR_ADC_STATUS_START_CONVERSION	BIT(0)
-#define SPEAR_ADC_STATUS_CHANNEL_NUM(x)		((x) << 1)
-#define SPEAR_ADC_STATUS_ADC_ENABLE		BIT(4)
-#define SPEAR_ADC_STATUS_AVG_SAMPLE(x)		((x) << 5)
-#define SPEAR_ADC_STATUS_VREF_INTERNAL		BIT(9)
-
-#define SPEAR_ADC_DATA_MASK		0x03ff
-#define SPEAR_ADC_DATA_BITS		10
-
-#define SPEAR_ADC_MOD_NAME "spear-adc"
-
-#define SPEAR_ADC_CHANNEL_NUM		8
-
-#define SPEAR_ADC_CLK_MIN			2500000
-#define SPEAR_ADC_CLK_MAX			20000000
-
-struct adc_regs_spear3xx {
-	u32 status;
-	u32 average;
-	u32 scan_rate;
-	u32 clk;	/* Not avail for 1340 & 1310 */
-	u32 ch_ctrl[SPEAR_ADC_CHANNEL_NUM];
-	u32 ch_data[SPEAR_ADC_CHANNEL_NUM];
-};
-
-struct chan_data {
-	u32 lsb;
-	u32 msb;
-};
-
-struct adc_regs_spear6xx {
-	u32 status;
-	u32 pad[2];
-	u32 clk;
-	u32 ch_ctrl[SPEAR_ADC_CHANNEL_NUM];
-	struct chan_data ch_data[SPEAR_ADC_CHANNEL_NUM];
-	u32 scan_rate_lo;
-	u32 scan_rate_hi;
-	struct chan_data average;
-};
-
-struct spear_adc_state {
-	struct device_node *np;
-	struct adc_regs_spear3xx __iomem *adc_base_spear3xx;
-	struct adc_regs_spear6xx __iomem *adc_base_spear6xx;
-	struct clk *clk;
-	struct completion completion;
-	u32 current_clk;
-	u32 sampling_freq;
-	u32 avg_samples;
-	u32 vref_external;
-	u32 value;
-};
-
-/*
- * Functions to access some SPEAr ADC register. Abstracted into
- * static inline functions, because of different register offsets
- * on different SoC variants (SPEAr300 vs SPEAr600 etc).
- */
-static void spear_adc_set_status(struct spear_adc_state *st, u32 val)
-{
-	__raw_writel(val, &st->adc_base_spear6xx->status);
-}
-
-static void spear_adc_set_clk(struct spear_adc_state *st, u32 val)
-{
-	u32 clk_high, clk_low, count;
-	u32 apb_clk = clk_get_rate(st->clk);
-
-	count = DIV_ROUND_UP(apb_clk, val);
-	clk_low = count / 2;
-	clk_high = count - clk_low;
-	st->current_clk = apb_clk / count;
-
-	__raw_writel(SPEAR_ADC_CLK_LOW(clk_low) | SPEAR_ADC_CLK_HIGH(clk_high),
-		     &st->adc_base_spear6xx->clk);
-}
-
-static void spear_adc_set_ctrl(struct spear_adc_state *st, int n,
-			       u32 val)
-{
-	__raw_writel(val, &st->adc_base_spear6xx->ch_ctrl[n]);
-}
-
-static u32 spear_adc_get_average(struct spear_adc_state *st)
-{
-	if (of_device_is_compatible(st->np, "st,spear600-adc")) {
-		return __raw_readl(&st->adc_base_spear6xx->average.msb) &
-			SPEAR_ADC_DATA_MASK;
-	} else {
-		return __raw_readl(&st->adc_base_spear3xx->average) &
-			SPEAR_ADC_DATA_MASK;
-	}
-}
-
-static void spear_adc_set_scanrate(struct spear_adc_state *st, u32 rate)
-{
-	if (of_device_is_compatible(st->np, "st,spear600-adc")) {
-		__raw_writel(SPEAR600_ADC_SCAN_RATE_LO(rate),
-			     &st->adc_base_spear6xx->scan_rate_lo);
-		__raw_writel(SPEAR600_ADC_SCAN_RATE_HI(rate),
-			     &st->adc_base_spear6xx->scan_rate_hi);
-	} else {
-		__raw_writel(rate, &st->adc_base_spear3xx->scan_rate);
-	}
-}
-
-static int spear_adc_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val,
-			      int *val2,
-			      long mask)
-{
-	struct spear_adc_state *st = iio_priv(indio_dev);
-	u32 status;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
-
-		status = SPEAR_ADC_STATUS_CHANNEL_NUM(chan->channel) |
-			SPEAR_ADC_STATUS_AVG_SAMPLE(st->avg_samples) |
-			SPEAR_ADC_STATUS_START_CONVERSION |
-			SPEAR_ADC_STATUS_ADC_ENABLE;
-		if (st->vref_external == 0)
-			status |= SPEAR_ADC_STATUS_VREF_INTERNAL;
-
-		spear_adc_set_status(st, status);
-		wait_for_completion(&st->completion); /* set by ISR */
-		*val = st->value;
-
-		mutex_unlock(&indio_dev->mlock);
-
-		return IIO_VAL_INT;
-
-	case IIO_CHAN_INFO_SCALE:
-		*val = st->vref_external;
-		*val2 = SPEAR_ADC_DATA_BITS;
-		return IIO_VAL_FRACTIONAL_LOG2;
-	case IIO_CHAN_INFO_SAMP_FREQ:
-		*val = st->current_clk;
-		return IIO_VAL_INT;
-	}
-
-	return -EINVAL;
-}
-
-static int spear_adc_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct spear_adc_state *st = iio_priv(indio_dev);
-	int ret = 0;
-
-	if (mask != IIO_CHAN_INFO_SAMP_FREQ)
-		return -EINVAL;
-
-	mutex_lock(&indio_dev->mlock);
-
-	if ((val < SPEAR_ADC_CLK_MIN) ||
-		(val > SPEAR_ADC_CLK_MAX) ||
-		(val2 != 0)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	spear_adc_set_clk(st, val);
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-	return ret;
-}
-
-#define SPEAR_ADC_CHAN(idx) {				\
-	.type = IIO_VOLTAGE,				\
-	.indexed = 1,					\
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
-	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
-	.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
-	.channel = idx,					\
-}
-
-static const struct iio_chan_spec spear_adc_iio_channels[] = {
-	SPEAR_ADC_CHAN(0),
-	SPEAR_ADC_CHAN(1),
-	SPEAR_ADC_CHAN(2),
-	SPEAR_ADC_CHAN(3),
-	SPEAR_ADC_CHAN(4),
-	SPEAR_ADC_CHAN(5),
-	SPEAR_ADC_CHAN(6),
-	SPEAR_ADC_CHAN(7),
-};
-
-static irqreturn_t spear_adc_isr(int irq, void *dev_id)
-{
-	struct spear_adc_state *st = dev_id;
-
-	/* Read value to clear IRQ */
-	st->value = spear_adc_get_average(st);
-	complete(&st->completion);
-
-	return IRQ_HANDLED;
-}
-
-static int spear_adc_configure(struct spear_adc_state *st)
-{
-	int i;
-
-	/* Reset ADC core */
-	spear_adc_set_status(st, 0);
-	__raw_writel(0, &st->adc_base_spear6xx->clk);
-	for (i = 0; i < 8; i++)
-		spear_adc_set_ctrl(st, i, 0);
-	spear_adc_set_scanrate(st, 0);
-
-	spear_adc_set_clk(st, st->sampling_freq);
-
-	return 0;
-}
-
-static const struct iio_info spear_adc_info = {
-	.read_raw = &spear_adc_read_raw,
-	.write_raw = &spear_adc_write_raw,
-	.driver_module = THIS_MODULE,
-};
-
-static int spear_adc_probe(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-	struct device *dev = &pdev->dev;
-	struct spear_adc_state *st;
-	struct iio_dev *indio_dev = NULL;
-	int ret = -ENODEV;
-	int irq;
-
-	indio_dev = devm_iio_device_alloc(dev, sizeof(struct spear_adc_state));
-	if (!indio_dev) {
-		dev_err(dev, "failed allocating iio device\n");
-		return -ENOMEM;
-	}
-
-	st = iio_priv(indio_dev);
-	st->np = np;
-
-	/*
-	 * SPEAr600 has a different register layout than other SPEAr SoC's
-	 * (e.g. SPEAr3xx). Let's provide two register base addresses
-	 * to support multi-arch kernels.
-	 */
-	st->adc_base_spear6xx = of_iomap(np, 0);
-	if (!st->adc_base_spear6xx) {
-		dev_err(dev, "failed mapping memory\n");
-		return -ENOMEM;
-	}
-	st->adc_base_spear3xx =
-		(struct adc_regs_spear3xx __iomem *)st->adc_base_spear6xx;
-
-	st->clk = clk_get(dev, NULL);
-	if (IS_ERR(st->clk)) {
-		dev_err(dev, "failed getting clock\n");
-		goto errout1;
-	}
-
-	ret = clk_prepare_enable(st->clk);
-	if (ret) {
-		dev_err(dev, "failed enabling clock\n");
-		goto errout2;
-	}
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0) {
-		dev_err(dev, "failed getting interrupt resource\n");
-		ret = -EINVAL;
-		goto errout3;
-	}
-
-	ret = devm_request_irq(dev, irq, spear_adc_isr, 0, SPEAR_ADC_MOD_NAME,
-			       st);
-	if (ret < 0) {
-		dev_err(dev, "failed requesting interrupt\n");
-		goto errout3;
-	}
-
-	if (of_property_read_u32(np, "sampling-frequency",
-				 &st->sampling_freq)) {
-		dev_err(dev, "sampling-frequency missing in DT\n");
-		ret = -EINVAL;
-		goto errout3;
-	}
-
-	/*
-	 * Optional avg_samples defaults to 0, resulting in single data
-	 * conversion
-	 */
-	of_property_read_u32(np, "average-samples", &st->avg_samples);
-
-	/*
-	 * Optional vref_external defaults to 0, resulting in internal vref
-	 * selection
-	 */
-	of_property_read_u32(np, "vref-external", &st->vref_external);
-
-	spear_adc_configure(st);
-
-	platform_set_drvdata(pdev, indio_dev);
-
-	init_completion(&st->completion);
-
-	indio_dev->name = SPEAR_ADC_MOD_NAME;
-	indio_dev->dev.parent = dev;
-	indio_dev->info = &spear_adc_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = spear_adc_iio_channels;
-	indio_dev->num_channels = ARRAY_SIZE(spear_adc_iio_channels);
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto errout3;
-
-	dev_info(dev, "SPEAR ADC driver loaded, IRQ %d\n", irq);
-
-	return 0;
-
-errout3:
-	clk_disable_unprepare(st->clk);
-errout2:
-	clk_put(st->clk);
-errout1:
-	iounmap(st->adc_base_spear6xx);
-	return ret;
-}
-
-static int spear_adc_remove(struct platform_device *pdev)
-{
-	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
-	struct spear_adc_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	clk_disable_unprepare(st->clk);
-	clk_put(st->clk);
-	iounmap(st->adc_base_spear6xx);
-
-	return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id spear_adc_dt_ids[] = {
-	{ .compatible = "st,spear600-adc", },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, spear_adc_dt_ids);
-#endif
-
-static struct platform_driver spear_adc_driver = {
-	.probe		= spear_adc_probe,
-	.remove		= spear_adc_remove,
-	.driver		= {
-		.name	= SPEAR_ADC_MOD_NAME,
-		.of_match_table = of_match_ptr(spear_adc_dt_ids),
-	},
-};
-
-module_platform_driver(spear_adc_driver);
-
-MODULE_AUTHOR("Stefan Roese <sr@denx.de>");
-MODULE_DESCRIPTION("SPEAr ADC driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/addac/Kconfig b/drivers/staging/iio/addac/Kconfig
index ba18b8432d9c..b7c3c4a7dfe4 100644
--- a/drivers/staging/iio/addac/Kconfig
+++ b/drivers/staging/iio/addac/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # ADDAC drivers
 #
diff --git a/drivers/staging/iio/addac/Makefile b/drivers/staging/iio/addac/Makefile
index 4c7686133692..8fdbd8cab21f 100644
--- a/drivers/staging/iio/addac/Makefile
+++ b/drivers/staging/iio/addac/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O ADDAC drivers
 #
diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c
index 78fe0b557280..f45968ef94ea 100644
--- a/drivers/staging/iio/addac/adt7316-i2c.c
+++ b/drivers/staging/iio/addac/adt7316-i2c.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * I2C bus driver for ADT7316/7/8 ADT7516/7/9 digital temperature
  * sensor, ADC and DAC
  *
  * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/device.h>
@@ -21,7 +20,7 @@
 static int adt7316_i2c_read(void *client, u8 reg, u8 *data)
 {
 	struct i2c_client *cl = client;
-	int ret = 0;
+	int ret;
 
 	ret = i2c_smbus_write_byte(cl, reg);
 	if (ret < 0) {
@@ -35,13 +34,15 @@ static int adt7316_i2c_read(void *client, u8 reg, u8 *data)
 		return ret;
 	}
 
+	*data = ret;
+
 	return 0;
 }
 
 static int adt7316_i2c_write(void *client, u8 reg, u8 data)
 {
 	struct i2c_client *cl = client;
-	int ret = 0;
+	int ret;
 
 	ret = i2c_smbus_write_byte_data(cl, reg, data);
 	if (ret < 0)
@@ -53,7 +54,7 @@ static int adt7316_i2c_write(void *client, u8 reg, u8 data)
 static int adt7316_i2c_multi_read(void *client, u8 reg, u8 count, u8 *data)
 {
 	struct i2c_client *cl = client;
-	int i, ret = 0;
+	int i, ret;
 
 	if (count > ADT7316_REG_MAX_ADDR)
 		count = ADT7316_REG_MAX_ADDR;
@@ -72,7 +73,7 @@ static int adt7316_i2c_multi_read(void *client, u8 reg, u8 count, u8 *data)
 static int adt7316_i2c_multi_write(void *client, u8 reg, u8 count, u8 *data)
 {
 	struct i2c_client *cl = client;
-	int i, ret = 0;
+	int i, ret;
 
 	if (count > ADT7316_REG_MAX_ADDR)
 		count = ADT7316_REG_MAX_ADDR;
@@ -92,13 +93,12 @@ static int adt7316_i2c_multi_write(void *client, u8 reg, u8 count, u8 *data)
  * device probe and remove
  */
 
-static int adt7316_i2c_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
+static int adt7316_i2c_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct adt7316_bus bus = {
 		.client = client,
 		.irq = client->irq,
-		.irq_flags = IRQF_TRIGGER_LOW,
 		.read = adt7316_i2c_read,
 		.write = adt7316_i2c_write,
 		.multi_read = adt7316_i2c_multi_read,
@@ -109,20 +109,33 @@ static int adt7316_i2c_probe(struct i2c_client *client,
 }
 
 static const struct i2c_device_id adt7316_i2c_id[] = {
-	{ "adt7316", 0 },
-	{ "adt7317", 0 },
-	{ "adt7318", 0 },
-	{ "adt7516", 0 },
-	{ "adt7517", 0 },
-	{ "adt7519", 0 },
+	{ "adt7316" },
+	{ "adt7317" },
+	{ "adt7318" },
+	{ "adt7516" },
+	{ "adt7517" },
+	{ "adt7519" },
 	{ }
 };
 
 MODULE_DEVICE_TABLE(i2c, adt7316_i2c_id);
 
+static const struct of_device_id adt7316_of_match[] = {
+	{ .compatible = "adi,adt7316" },
+	{ .compatible = "adi,adt7317" },
+	{ .compatible = "adi,adt7318" },
+	{ .compatible = "adi,adt7516" },
+	{ .compatible = "adi,adt7517" },
+	{ .compatible = "adi,adt7519" },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, adt7316_of_match);
+
 static struct i2c_driver adt7316_driver = {
 	.driver = {
 		.name = "adt7316",
+		.of_match_table = adt7316_of_match,
 		.pm = ADT7316_PM_OPS,
 	},
 	.probe = adt7316_i2c_probe,
diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c
index e480abb72e4a..af513e003da7 100644
--- a/drivers/staging/iio/addac/adt7316-spi.c
+++ b/drivers/staging/iio/addac/adt7316-spi.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * API bus driver for ADT7316/7/8 ADT7516/7/9 digital temperature
  * sensor, ADC and DAC
  *
  * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/device.h>
@@ -27,7 +26,7 @@ static int adt7316_spi_multi_read(void *client, u8 reg, u8 count, u8 *data)
 {
 	struct spi_device *spi_dev = client;
 	u8 cmd[2];
-	int ret = 0;
+	int ret;
 
 	if (count > ADT7316_REG_MAX_ADDR)
 		count = ADT7316_REG_MAX_ADDR;
@@ -56,7 +55,7 @@ static int adt7316_spi_multi_write(void *client, u8 reg, u8 count, u8 *data)
 {
 	struct spi_device *spi_dev = client;
 	u8 buf[ADT7316_REG_MAX_ADDR + 2];
-	int i, ret = 0;
+	int i, ret;
 
 	if (count > ADT7316_REG_MAX_ADDR)
 		count = ADT7316_REG_MAX_ADDR;
@@ -94,7 +93,6 @@ static int adt7316_spi_probe(struct spi_device *spi_dev)
 	struct adt7316_bus bus = {
 		.client = spi_dev,
 		.irq = spi_dev->irq,
-		.irq_flags = IRQF_TRIGGER_LOW,
 		.read = adt7316_spi_read,
 		.write = adt7316_spi_write,
 		.multi_read = adt7316_spi_multi_read,
@@ -128,11 +126,23 @@ static const struct spi_device_id adt7316_spi_id[] = {
 
 MODULE_DEVICE_TABLE(spi, adt7316_spi_id);
 
+static const struct of_device_id adt7316_of_spi_match[] = {
+	{ .compatible = "adi,adt7316" },
+	{ .compatible = "adi,adt7317" },
+	{ .compatible = "adi,adt7318" },
+	{ .compatible = "adi,adt7516" },
+	{ .compatible = "adi,adt7517" },
+	{ .compatible = "adi,adt7519" },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, adt7316_of_spi_match);
+
 static struct spi_driver adt7316_driver = {
 	.driver = {
 		.name = "adt7316",
+		.of_match_table = adt7316_of_spi_match,
 		.pm = ADT7316_PM_OPS,
-		.owner = THIS_MODULE,
 	},
 	.probe = adt7316_spi_probe,
 	.id_table = adt7316_spi_id,
diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index 5b11b42c0254..8a9a8262c2be 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -1,14 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * ADT7316 digital temperature sensor driver supporting ADT7316/7/8 ADT7516/7/9
  *
- *
  * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/interrupt.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/irq.h>
 #include <linux/workqueue.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -47,6 +46,8 @@
 #define ADT7516_MSB_AIN3		0xA
 #define ADT7516_MSB_AIN4		0xB
 #define ADT7316_DA_DATA_BASE		0x10
+#define ADT7316_DA_10_BIT_LSB_SHIFT	6
+#define ADT7316_DA_12_BIT_LSB_SHIFT	4
 #define ADT7316_DA_MSB_DATA_REGS	4
 #define ADT7316_LSB_DAC_A		0x10
 #define ADT7316_MSB_DAC_A		0x11
@@ -59,8 +60,8 @@
 #define ADT7316_CONFIG1			0x18
 #define ADT7316_CONFIG2			0x19
 #define ADT7316_CONFIG3			0x1A
-#define ADT7316_LDAC_CONFIG		0x1B
-#define ADT7316_DAC_CONFIG		0x1C
+#define ADT7316_DAC_CONFIG		0x1B
+#define ADT7316_LDAC_CONFIG		0x1C
 #define ADT7316_INT_MASK1		0x1D
 #define ADT7316_INT_MASK2		0x1E
 #define ADT7316_IN_TEMP_OFFSET		0x1F
@@ -117,7 +118,7 @@
  */
 #define ADT7316_ADCLK_22_5		0x1
 #define ADT7316_DA_HIGH_RESOLUTION	0x2
-#define ADT7316_DA_EN_VIA_DAC_LDCA	0x4
+#define ADT7316_DA_EN_VIA_DAC_LDAC	0x8
 #define ADT7516_AIN_IN_VREF		0x10
 #define ADT7316_EN_IN_TEMP_PROP_DACA	0x20
 #define ADT7316_EN_EX_TEMP_PROP_DACB	0x40
@@ -127,6 +128,7 @@
  */
 #define ADT7316_DA_2VREF_CH_MASK	0xF
 #define ADT7316_DA_EN_MODE_MASK		0x30
+#define ADT7316_DA_EN_MODE_SHIFT	4
 #define ADT7316_DA_EN_MODE_SINGLE	0x00
 #define ADT7316_DA_EN_MODE_AB_CD	0x10
 #define ADT7316_DA_EN_MODE_ABCD		0x20
@@ -177,7 +179,7 @@
 
 struct adt7316_chip_info {
 	struct adt7316_bus	bus;
-	u16			ldac_pin;
+	struct gpio_desc	*ldac_pin;
 	u16			int_mask;	/* 0x2f */
 	u8			config1;
 	u8			config2;
@@ -207,27 +209,18 @@ struct adt7316_chip_info {
 #define ADT7316_TEMP_AIN_INT_MASK	\
 	(ADT7316_TEMP_INT_MASK)
 
-/*
- * struct adt7316_chip_info - chip specific information
- */
-
-struct adt7316_limit_regs {
-	u16	data_high;
-	u16	data_low;
-};
-
 static ssize_t adt7316_show_enabled(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				    struct device_attribute *attr,
+				    char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_EN));
+	return sysfs_emit(buf, "%d\n", !!(chip->config1 & ADT7316_EN));
 }
 
 static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip,
-		int enable)
+				      int enable)
 {
 	u8 config1;
 	int ret;
@@ -244,13 +237,12 @@ static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip,
 	chip->config1 = config1;
 
 	return ret;
-
 }
 
 static ssize_t adt7316_store_enabled(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				     struct device_attribute *attr,
+				     const char *buf,
+				     size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -267,14 +259,14 @@ static ssize_t adt7316_store_enabled(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(enabled, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(enabled, 0644,
 		adt7316_show_enabled,
 		adt7316_store_enabled,
 		0);
 
 static ssize_t adt7316_show_select_ex_temp(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					   struct device_attribute *attr,
+					   char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -282,13 +274,13 @@ static ssize_t adt7316_show_select_ex_temp(struct device *dev,
 	if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
 		return -EPERM;
 
-	return sprintf(buf, "%d\n", !!(chip->config1 & ADT7516_SEL_EX_TEMP));
+	return sysfs_emit(buf, "%d\n", !!(chip->config1 & ADT7516_SEL_EX_TEMP));
 }
 
 static ssize_t adt7316_store_select_ex_temp(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					    struct device_attribute *attr,
+					    const char *buf,
+					    size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -311,28 +303,28 @@ static ssize_t adt7316_store_select_ex_temp(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(select_ex_temp, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(select_ex_temp, 0644,
 		adt7316_show_select_ex_temp,
 		adt7316_store_select_ex_temp,
 		0);
 
 static ssize_t adt7316_show_mode(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				 struct device_attribute *attr,
+				 char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
 	if (chip->config2 & ADT7316_AD_SINGLE_CH_MODE)
-		return sprintf(buf, "single_channel\n");
+		return sysfs_emit(buf, "single_channel\n");
 
-	return sprintf(buf, "round_robin\n");
+	return sysfs_emit(buf, "round_robin\n");
 }
 
 static ssize_t adt7316_store_mode(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				  struct device_attribute *attr,
+				  const char *buf,
+				  size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -352,23 +344,23 @@ static ssize_t adt7316_store_mode(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(mode, 0644,
 		adt7316_show_mode,
 		adt7316_store_mode,
 		0);
 
 static ssize_t adt7316_show_all_modes(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				      struct device_attribute *attr,
+				      char *buf)
 {
-	return sprintf(buf, "single_channel\nround_robin\n");
+	return sysfs_emit(buf, "single_channel\nround_robin\n");
 }
 
-static IIO_DEVICE_ATTR(all_modes, S_IRUGO, adt7316_show_all_modes, NULL, 0);
+static IIO_DEVICE_ATTR(all_modes, 0444, adt7316_show_all_modes, NULL, 0);
 
 static ssize_t adt7316_show_ad_channel(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				       struct device_attribute *attr,
+				       char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -378,36 +370,36 @@ static ssize_t adt7316_show_ad_channel(struct device *dev,
 
 	switch (chip->config2 & ADT7516_AD_SINGLE_CH_MASK) {
 	case ADT7316_AD_SINGLE_CH_VDD:
-		return sprintf(buf, "0 - VDD\n");
+		return sysfs_emit(buf, "0 - VDD\n");
 	case ADT7316_AD_SINGLE_CH_IN:
-		return sprintf(buf, "1 - Internal Temperature\n");
+		return sysfs_emit(buf, "1 - Internal Temperature\n");
 	case ADT7316_AD_SINGLE_CH_EX:
 		if (((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) &&
-			(chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)
-			return sprintf(buf, "2 - AIN1\n");
+		    (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)
+			return sysfs_emit(buf, "2 - AIN1\n");
 
-		return sprintf(buf, "2 - External Temperature\n");
+		return sysfs_emit(buf, "2 - External Temperature\n");
 	case ADT7516_AD_SINGLE_CH_AIN2:
 		if ((chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)
-			return sprintf(buf, "3 - AIN2\n");
+			return sysfs_emit(buf, "3 - AIN2\n");
 
-		return sprintf(buf, "N/A\n");
+		return sysfs_emit(buf, "N/A\n");
 	case ADT7516_AD_SINGLE_CH_AIN3:
 		if (chip->config1 & ADT7516_SEL_AIN3)
-			return sprintf(buf, "4 - AIN3\n");
+			return sysfs_emit(buf, "4 - AIN3\n");
 
-		return sprintf(buf, "N/A\n");
+		return sysfs_emit(buf, "N/A\n");
 	case ADT7516_AD_SINGLE_CH_AIN4:
-		return sprintf(buf, "5 - AIN4\n");
+		return sysfs_emit(buf, "5 - AIN4\n");
 	default:
-		return sprintf(buf, "N/A\n");
+		return sysfs_emit(buf, "N/A\n");
 	}
 }
 
 static ssize_t adt7316_store_ad_channel(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					struct device_attribute *attr,
+					const char *buf,
+					size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -434,7 +426,6 @@ static ssize_t adt7316_store_ad_channel(struct device *dev,
 		config2 = chip->config2 & (~ADT7316_AD_SINGLE_CH_MASK);
 	}
 
-
 	config2 |= data;
 
 	ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2);
@@ -446,14 +437,14 @@ static ssize_t adt7316_store_ad_channel(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(ad_channel, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(ad_channel, 0644,
 		adt7316_show_ad_channel,
 		adt7316_store_ad_channel,
 		0);
 
 static ssize_t adt7316_show_all_ad_channels(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					    struct device_attribute *attr,
+					    char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -462,32 +453,31 @@ static ssize_t adt7316_show_all_ad_channels(struct device *dev,
 		return -EPERM;
 
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
+		return sysfs_emit(buf, "0 - VDD\n1 - Internal Temperature\n"
 				"2 - External Temperature or AIN1\n"
 				"3 - AIN2\n4 - AIN3\n5 - AIN4\n");
-	else
-		return sprintf(buf, "0 - VDD\n1 - Internal Temperature\n"
-				"2 - External Temperature\n");
+	return sysfs_emit(buf, "0 - VDD\n1 - Internal Temperature\n"
+			"2 - External Temperature\n");
 }
 
-static IIO_DEVICE_ATTR(all_ad_channels, S_IRUGO,
+static IIO_DEVICE_ATTR(all_ad_channels, 0444,
 		adt7316_show_all_ad_channels, NULL, 0);
 
 static ssize_t adt7316_show_disable_averaging(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 		!!(chip->config2 & ADT7316_DISABLE_AVERAGING));
 }
 
 static ssize_t adt7316_store_disable_averaging(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					       struct device_attribute *attr,
+					       const char *buf,
+					       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -507,26 +497,26 @@ static ssize_t adt7316_store_disable_averaging(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(disable_averaging, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(disable_averaging, 0644,
 		adt7316_show_disable_averaging,
 		adt7316_store_disable_averaging,
 		0);
 
 static ssize_t adt7316_show_enable_smbus_timeout(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+						 struct device_attribute *attr,
+						 char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 		!!(chip->config2 & ADT7316_EN_SMBUS_TIMEOUT));
 }
 
 static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+						  struct device_attribute *attr,
+						  const char *buf,
+						  size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -546,25 +536,25 @@ static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(enable_smbus_timeout, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(enable_smbus_timeout, 0644,
 		adt7316_show_enable_smbus_timeout,
 		adt7316_store_enable_smbus_timeout,
 		0);
 
 static ssize_t adt7316_show_powerdown(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				      struct device_attribute *attr,
+				      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_PD));
+	return sysfs_emit(buf, "%d\n", !!(chip->config1 & ADT7316_PD));
 }
 
 static ssize_t adt7316_store_powerdown(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				       struct device_attribute *attr,
+				       const char *buf,
+				       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -584,25 +574,25 @@ static ssize_t adt7316_store_powerdown(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(powerdown, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(powerdown, 0644,
 		adt7316_show_powerdown,
 		adt7316_store_powerdown,
 		0);
 
 static ssize_t adt7316_show_fast_ad_clock(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					  struct device_attribute *attr,
+					  char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n", !!(chip->config3 & ADT7316_ADCLK_22_5));
+	return sysfs_emit(buf, "%d\n", !!(chip->config3 & ADT7316_ADCLK_22_5));
 }
 
 static ssize_t adt7316_store_fast_ad_clock(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					   struct device_attribute *attr,
+					   const char *buf,
+					   size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -622,48 +612,42 @@ static ssize_t adt7316_store_fast_ad_clock(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(fast_ad_clock, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(fast_ad_clock, 0644,
 		adt7316_show_fast_ad_clock,
 		adt7316_store_fast_ad_clock,
 		0);
 
 static ssize_t adt7316_show_da_high_resolution(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					       struct device_attribute *attr,
+					       char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
 	if (chip->config3 & ADT7316_DA_HIGH_RESOLUTION) {
-		if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
-			return sprintf(buf, "1 (12 bits)\n");
-		else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
-			return sprintf(buf, "1 (10 bits)\n");
+		if (chip->id != ID_ADT7318 && chip->id != ID_ADT7519)
+			return sysfs_emit(buf, "1 (10 bits)\n");
 	}
 
-	return sprintf(buf, "0 (8 bits)\n");
+	return sysfs_emit(buf, "0 (8 bits)\n");
 }
 
 static ssize_t adt7316_store_da_high_resolution(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+						struct device_attribute *attr,
+						const char *buf,
+						size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 config3;
 	int ret;
 
-	chip->dac_bits = 8;
+	if (chip->id == ID_ADT7318 || chip->id == ID_ADT7519)
+		return -EPERM;
 
-	if (buf[0] == '1') {
-		config3 = chip->config3 | ADT7316_DA_HIGH_RESOLUTION;
-		if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
-			chip->dac_bits = 12;
-		else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
-			chip->dac_bits = 10;
-	} else
-		config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION);
+	config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION);
+	if (buf[0] == '1')
+		config3 |= ADT7316_DA_HIGH_RESOLUTION;
 
 	ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
 	if (ret)
@@ -674,14 +658,14 @@ static ssize_t adt7316_store_da_high_resolution(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(da_high_resolution, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(da_high_resolution, 0644,
 		adt7316_show_da_high_resolution,
 		adt7316_store_da_high_resolution,
 		0);
 
 static ssize_t adt7316_show_AIN_internal_Vref(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -689,14 +673,14 @@ static ssize_t adt7316_show_AIN_internal_Vref(struct device *dev,
 	if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
 		return -EPERM;
 
-	return sprintf(buf, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 		!!(chip->config3 & ADT7516_AIN_IN_VREF));
 }
 
 static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					       struct device_attribute *attr,
+					       const char *buf,
+					       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -720,27 +704,26 @@ static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(AIN_internal_Vref, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(AIN_internal_Vref, 0644,
 		adt7316_show_AIN_internal_Vref,
 		adt7316_store_AIN_internal_Vref,
 		0);
 
-
 static ssize_t adt7316_show_enable_prop_DACA(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					     struct device_attribute *attr,
+					     char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 		!!(chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA));
 }
 
 static ssize_t adt7316_store_enable_prop_DACA(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					      struct device_attribute *attr,
+					      const char *buf,
+					      size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -760,26 +743,26 @@ static ssize_t adt7316_store_enable_prop_DACA(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(enable_proportion_DACA, S_IRUGO | S_IWUSR,
-		adt7316_show_enable_prop_DACA,
-		adt7316_store_enable_prop_DACA,
-		0);
+static IIO_DEVICE_ATTR(enable_proportion_DACA, 0644,
+		       adt7316_show_enable_prop_DACA,
+		       adt7316_store_enable_prop_DACA,
+		       0);
 
 static ssize_t adt7316_show_enable_prop_DACB(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					     struct device_attribute *attr,
+					     char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 		!!(chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB));
 }
 
 static ssize_t adt7316_store_enable_prop_DACB(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					      struct device_attribute *attr,
+					      const char *buf,
+					      size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -799,26 +782,26 @@ static ssize_t adt7316_store_enable_prop_DACB(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(enable_proportion_DACB, S_IRUGO | S_IWUSR,
-		adt7316_show_enable_prop_DACB,
-		adt7316_store_enable_prop_DACB,
-		0);
+static IIO_DEVICE_ATTR(enable_proportion_DACB, 0644,
+		       adt7316_show_enable_prop_DACB,
+		       adt7316_store_enable_prop_DACB,
+		       0);
 
 static ssize_t adt7316_show_DAC_2Vref_ch_mask(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "0x%x\n",
+	return sysfs_emit(buf, "0x%x\n",
 		chip->dac_config & ADT7316_DA_2VREF_CH_MASK);
 }
 
 static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					       struct device_attribute *attr,
+					       const char *buf,
+					       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -842,40 +825,40 @@ static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(DAC_2Vref_channels_mask, S_IRUGO | S_IWUSR,
-		adt7316_show_DAC_2Vref_ch_mask,
-		adt7316_store_DAC_2Vref_ch_mask,
-		0);
+static IIO_DEVICE_ATTR(DAC_2Vref_channels_mask, 0644,
+		       adt7316_show_DAC_2Vref_ch_mask,
+		       adt7316_store_DAC_2Vref_ch_mask,
+		       0);
 
 static ssize_t adt7316_show_DAC_update_mode(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					    struct device_attribute *attr,
+					    char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
-		return sprintf(buf, "manual\n");
+	if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC))
+		return sysfs_emit(buf, "manual\n");
 
 	switch (chip->dac_config & ADT7316_DA_EN_MODE_MASK) {
 	case ADT7316_DA_EN_MODE_SINGLE:
-		return sprintf(buf,
+		return sysfs_emit(buf,
 			"0 - auto at any MSB DAC writing\n");
 	case ADT7316_DA_EN_MODE_AB_CD:
-		return sprintf(buf,
+		return sysfs_emit(buf,
 			"1 - auto at MSB DAC AB and CD writing\n");
 	case ADT7316_DA_EN_MODE_ABCD:
-		return sprintf(buf,
+		return sysfs_emit(buf,
 			"2 - auto at MSB DAC ABCD writing\n");
 	default: /* ADT7316_DA_EN_MODE_LDAC */
-		return sprintf(buf, "3 - manual\n");
+		return sysfs_emit(buf, "3 - manual\n");
 	}
 }
 
 static ssize_t adt7316_store_DAC_update_mode(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					     struct device_attribute *attr,
+					     const char *buf,
+					     size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -883,15 +866,15 @@ static ssize_t adt7316_store_DAC_update_mode(struct device *dev,
 	u8 data;
 	int ret;
 
-	if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
+	if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC))
 		return -EPERM;
 
 	ret = kstrtou8(buf, 10, &data);
-	if (ret || data > ADT7316_DA_EN_MODE_MASK)
+	if (ret || data > (ADT7316_DA_EN_MODE_MASK >> ADT7316_DA_EN_MODE_SHIFT))
 		return -EINVAL;
 
 	dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_MASK);
-	dac_config |= data;
+	dac_config |= data << ADT7316_DA_EN_MODE_SHIFT;
 
 	ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config);
 	if (ret)
@@ -902,35 +885,33 @@ static ssize_t adt7316_store_DAC_update_mode(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(DAC_update_mode, S_IRUGO | S_IWUSR,
-		adt7316_show_DAC_update_mode,
-		adt7316_store_DAC_update_mode,
-		0);
+static IIO_DEVICE_ATTR(DAC_update_mode, 0644,
+		       adt7316_show_DAC_update_mode,
+		       adt7316_store_DAC_update_mode,
+		       0);
 
 static ssize_t adt7316_show_all_DAC_update_modes(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+						 struct device_attribute *attr,
+						 char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA)
-		return sprintf(buf, "0 - auto at any MSB DAC writing\n"
+	if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC)
+		return sysfs_emit(buf, "0 - auto at any MSB DAC writing\n"
 				"1 - auto at MSB DAC AB and CD writing\n"
 				"2 - auto at MSB DAC ABCD writing\n"
 				"3 - manual\n");
-	else
-		return sprintf(buf, "manual\n");
+	return sysfs_emit(buf, "manual\n");
 }
 
-static IIO_DEVICE_ATTR(all_DAC_update_modes, S_IRUGO,
-		adt7316_show_all_DAC_update_modes, NULL, 0);
-
+static IIO_DEVICE_ATTR(all_DAC_update_modes, 0444,
+		       adt7316_show_all_DAC_update_modes, NULL, 0);
 
 static ssize_t adt7316_store_update_DAC(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					struct device_attribute *attr,
+					const char *buf,
+					size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -938,7 +919,7 @@ static ssize_t adt7316_store_update_DAC(struct device *dev,
 	u8 data;
 	int ret;
 
-	if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) {
+	if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDAC) {
 		if ((chip->dac_config & ADT7316_DA_EN_MODE_MASK) !=
 			ADT7316_DA_EN_MODE_LDAC)
 			return -EPERM;
@@ -955,45 +936,39 @@ static ssize_t adt7316_store_update_DAC(struct device *dev,
 		if (ret)
 			return -EIO;
 	} else {
-		gpio_set_value(chip->ldac_pin, 0);
-		gpio_set_value(chip->ldac_pin, 1);
+		gpiod_set_value(chip->ldac_pin, 0);
+		gpiod_set_value(chip->ldac_pin, 1);
 	}
 
 	return len;
 }
 
-static IIO_DEVICE_ATTR(update_DAC, S_IRUGO | S_IWUSR,
-		NULL,
-		adt7316_store_update_DAC,
-		0);
+static IIO_DEVICE_ATTR(update_DAC, 0644,
+		       NULL,
+		       adt7316_store_update_DAC,
+		       0);
 
 static ssize_t adt7316_show_DA_AB_Vref_bypass(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
-	return sprintf(buf, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 		!!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_AB));
 }
 
 static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					       struct device_attribute *attr,
+					       const char *buf,
+					       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 dac_config;
 	int ret;
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
 	dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_AB);
 	if (buf[0] == '1')
 		dac_config |= ADT7316_VREF_BYPASS_DAC_AB;
@@ -1007,38 +982,32 @@ static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(DA_AB_Vref_bypass, S_IRUGO | S_IWUSR,
-		adt7316_show_DA_AB_Vref_bypass,
-		adt7316_store_DA_AB_Vref_bypass,
-		0);
+static IIO_DEVICE_ATTR(DA_AB_Vref_bypass, 0644,
+		       adt7316_show_DA_AB_Vref_bypass,
+		       adt7316_store_DA_AB_Vref_bypass,
+		       0);
 
 static ssize_t adt7316_show_DA_CD_Vref_bypass(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
-	return sprintf(buf, "%d\n",
+	return sysfs_emit(buf, "%d\n",
 		!!(chip->dac_config & ADT7316_VREF_BYPASS_DAC_CD));
 }
 
 static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					       struct device_attribute *attr,
+					       const char *buf,
+					       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 dac_config;
 	int ret;
 
-	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return -EPERM;
-
 	dac_config = chip->dac_config & (~ADT7316_VREF_BYPASS_DAC_CD);
 	if (buf[0] == '1')
 		dac_config |= ADT7316_VREF_BYPASS_DAC_CD;
@@ -1052,31 +1021,30 @@ static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(DA_CD_Vref_bypass, S_IRUGO | S_IWUSR,
-		adt7316_show_DA_CD_Vref_bypass,
-		adt7316_store_DA_CD_Vref_bypass,
-		0);
+static IIO_DEVICE_ATTR(DA_CD_Vref_bypass, 0644,
+		       adt7316_show_DA_CD_Vref_bypass,
+		       adt7316_store_DA_CD_Vref_bypass,
+		       0);
 
 static ssize_t adt7316_show_DAC_internal_Vref(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-		return sprintf(buf, "0x%x\n",
-			(chip->dac_config & ADT7516_DAC_IN_VREF_MASK) >>
+		return sysfs_emit(buf, "0x%x\n",
+			(chip->ldac_config & ADT7516_DAC_IN_VREF_MASK) >>
 			ADT7516_DAC_IN_VREF_OFFSET);
-	else
-		return sprintf(buf, "%d\n",
-			!!(chip->dac_config & ADT7316_DAC_IN_VREF));
+	return sysfs_emit(buf, "%d\n",
+		       !!(chip->ldac_config & ADT7316_DAC_IN_VREF));
 }
 
 static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					       struct device_attribute *attr,
+					       const char *buf,
+					       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1092,7 +1060,7 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
 		ldac_config = chip->ldac_config & (~ADT7516_DAC_IN_VREF_MASK);
 		if (data & 0x1)
 			ldac_config |= ADT7516_DAC_AB_IN_VREF;
-		else if (data & 0x2)
+		if (data & 0x2)
 			ldac_config |= ADT7516_DAC_CD_IN_VREF;
 	} else {
 		ret = kstrtou8(buf, 16, &data);
@@ -1114,13 +1082,13 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
 	return len;
 }
 
-static IIO_DEVICE_ATTR(DAC_internal_Vref, S_IRUGO | S_IWUSR,
-		adt7316_show_DAC_internal_Vref,
-		adt7316_store_DAC_internal_Vref,
-		0);
+static IIO_DEVICE_ATTR(DAC_internal_Vref, 0644,
+		       adt7316_show_DAC_internal_Vref,
+		       adt7316_store_DAC_internal_Vref,
+		       0);
 
 static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
-		int channel, char *buf)
+			       int channel, char *buf)
 {
 	u16 data;
 	u8 msb, lsb;
@@ -1128,7 +1096,7 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
 	int ret;
 
 	if ((chip->config2 & ADT7316_AD_SINGLE_CH_MODE) &&
-		channel != (chip->config2 & ADT7516_AD_SINGLE_CH_MASK))
+	    channel != (chip->config2 & ADT7516_AD_SINGLE_CH_MASK))
 		return -EPERM;
 
 	switch (channel) {
@@ -1160,7 +1128,7 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
 
 		data = msb << ADT7316_T_VALUE_FLOAT_OFFSET;
 		data |= (lsb & ADT7316_LSB_VDD_MASK) >> ADT7316_LSB_VDD_OFFSET;
-		return sprintf(buf, "%d\n", data);
+		return sysfs_emit(buf, "%d\n", data);
 	default: /* ex_temp and ain */
 		ret = chip->bus.read(chip->bus.client,
 			ADT7316_LSB_EX_TEMP_AIN, &lsb);
@@ -1178,7 +1146,7 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
 			(ADT7316_MSB_EX_TEMP - ADT7316_AD_MSB_DATA_BASE))));
 
 		if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-			return sprintf(buf, "%d\n", data);
+			return sysfs_emit(buf, "%d\n", data);
 
 		break;
 	}
@@ -1189,25 +1157,25 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip,
 		sign = '-';
 	}
 
-	return sprintf(buf, "%c%d.%.2d\n", sign,
+	return sysfs_emit(buf, "%c%d.%.2d\n", sign,
 		(data >> ADT7316_T_VALUE_FLOAT_OFFSET),
 		(data & ADT7316_T_VALUE_FLOAT_MASK) * 25);
 }
 
 static ssize_t adt7316_show_VDD(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				struct device_attribute *attr,
+				char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
 	return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_VDD, buf);
 }
-static IIO_DEVICE_ATTR(VDD, S_IRUGO, adt7316_show_VDD, NULL, 0);
+static IIO_DEVICE_ATTR(VDD, 0444, adt7316_show_VDD, NULL, 0);
 
 static ssize_t adt7316_show_in_temp(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				    struct device_attribute *attr,
+				    char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1215,11 +1183,11 @@ static ssize_t adt7316_show_in_temp(struct device *dev,
 	return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_IN, buf);
 }
 
-static IIO_DEVICE_ATTR(in_temp, S_IRUGO, adt7316_show_in_temp, NULL, 0);
+static IIO_DEVICE_ATTR(in_temp, 0444, adt7316_show_in_temp, NULL, 0);
 
 static ssize_t adt7316_show_ex_temp_AIN1(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					 struct device_attribute *attr,
+					 char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1227,45 +1195,45 @@ static ssize_t adt7316_show_ex_temp_AIN1(struct device *dev,
 	return adt7316_show_ad(chip, ADT7316_AD_SINGLE_CH_EX, buf);
 }
 
-static IIO_DEVICE_ATTR(ex_temp_AIN1, S_IRUGO, adt7316_show_ex_temp_AIN1,
-		NULL, 0);
-static IIO_DEVICE_ATTR(ex_temp, S_IRUGO, adt7316_show_ex_temp_AIN1, NULL, 0);
+static IIO_DEVICE_ATTR(ex_temp_AIN1, 0444, adt7316_show_ex_temp_AIN1,
+		       NULL, 0);
+static IIO_DEVICE_ATTR(ex_temp, 0444, adt7316_show_ex_temp_AIN1, NULL, 0);
 
 static ssize_t adt7316_show_AIN2(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				 struct device_attribute *attr,
+				 char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
 	return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN2, buf);
 }
-static IIO_DEVICE_ATTR(AIN2, S_IRUGO, adt7316_show_AIN2, NULL, 0);
+static IIO_DEVICE_ATTR(AIN2, 0444, adt7316_show_AIN2, NULL, 0);
 
 static ssize_t adt7316_show_AIN3(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				 struct device_attribute *attr,
+				 char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
 	return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN3, buf);
 }
-static IIO_DEVICE_ATTR(AIN3, S_IRUGO, adt7316_show_AIN3, NULL, 0);
+static IIO_DEVICE_ATTR(AIN3, 0444, adt7316_show_AIN3, NULL, 0);
 
 static ssize_t adt7316_show_AIN4(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				 struct device_attribute *attr,
+				 char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
 	return adt7316_show_ad(chip, ADT7516_AD_SINGLE_CH_AIN4, buf);
 }
-static IIO_DEVICE_ATTR(AIN4, S_IRUGO, adt7316_show_AIN4, NULL, 0);
+static IIO_DEVICE_ATTR(AIN4, 0444, adt7316_show_AIN4, NULL, 0);
 
 static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip,
-		int offset_addr, char *buf)
+					int offset_addr, char *buf)
 {
 	int data;
 	u8 val;
@@ -1279,11 +1247,13 @@ static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip,
 	if (val & 0x80)
 		data -= 256;
 
-	return sprintf(buf, "%d\n", data);
+	return sysfs_emit(buf, "%d\n", data);
 }
 
 static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip,
-		int offset_addr, const char *buf, size_t len)
+					 int offset_addr,
+					 const char *buf,
+					 size_t len)
 {
 	int data;
 	u8 val;
@@ -1306,8 +1276,8 @@ static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip,
 }
 
 static ssize_t adt7316_show_in_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					   struct device_attribute *attr,
+					   char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1316,9 +1286,9 @@ static ssize_t adt7316_show_in_temp_offset(struct device *dev,
 }
 
 static ssize_t adt7316_store_in_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					    struct device_attribute *attr,
+					    const char *buf,
+					    size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1327,13 +1297,13 @@ static ssize_t adt7316_store_in_temp_offset(struct device *dev,
 			len);
 }
 
-static IIO_DEVICE_ATTR(in_temp_offset, S_IRUGO | S_IWUSR,
-		adt7316_show_in_temp_offset,
-		adt7316_store_in_temp_offset, 0);
+static IIO_DEVICE_ATTR(in_temp_offset, 0644,
+		       adt7316_show_in_temp_offset,
+		       adt7316_store_in_temp_offset, 0);
 
 static ssize_t adt7316_show_ex_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					   struct device_attribute *attr,
+					   char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1342,9 +1312,9 @@ static ssize_t adt7316_show_ex_temp_offset(struct device *dev,
 }
 
 static ssize_t adt7316_store_ex_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					    struct device_attribute *attr,
+					    const char *buf,
+					    size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1353,13 +1323,13 @@ static ssize_t adt7316_store_ex_temp_offset(struct device *dev,
 			len);
 }
 
-static IIO_DEVICE_ATTR(ex_temp_offset, S_IRUGO | S_IWUSR,
-		adt7316_show_ex_temp_offset,
-		adt7316_store_ex_temp_offset, 0);
+static IIO_DEVICE_ATTR(ex_temp_offset, 0644,
+		       adt7316_show_ex_temp_offset,
+		       adt7316_store_ex_temp_offset, 0);
 
 static ssize_t adt7316_show_in_analog_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+						  struct device_attribute *attr,
+						  char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1369,9 +1339,9 @@ static ssize_t adt7316_show_in_analog_temp_offset(struct device *dev,
 }
 
 static ssize_t adt7316_store_in_analog_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+						   struct device_attribute *attr,
+						   const char *buf,
+						   size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1380,13 +1350,13 @@ static ssize_t adt7316_store_in_analog_temp_offset(struct device *dev,
 			ADT7316_IN_ANALOG_TEMP_OFFSET, buf, len);
 }
 
-static IIO_DEVICE_ATTR(in_analog_temp_offset, S_IRUGO | S_IWUSR,
-		adt7316_show_in_analog_temp_offset,
-		adt7316_store_in_analog_temp_offset, 0);
+static IIO_DEVICE_ATTR(in_analog_temp_offset, 0644,
+		       adt7316_show_in_analog_temp_offset,
+		       adt7316_store_in_analog_temp_offset, 0);
 
 static ssize_t adt7316_show_ex_analog_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+						  struct device_attribute *attr,
+						  char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1396,9 +1366,9 @@ static ssize_t adt7316_show_ex_analog_temp_offset(struct device *dev,
 }
 
 static ssize_t adt7316_store_ex_analog_temp_offset(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+						   struct device_attribute *attr,
+						   const char *buf,
+						   size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1407,22 +1377,22 @@ static ssize_t adt7316_store_ex_analog_temp_offset(struct device *dev,
 			ADT7316_EX_ANALOG_TEMP_OFFSET, buf, len);
 }
 
-static IIO_DEVICE_ATTR(ex_analog_temp_offset, S_IRUGO | S_IWUSR,
-		adt7316_show_ex_analog_temp_offset,
-		adt7316_store_ex_analog_temp_offset, 0);
+static IIO_DEVICE_ATTR(ex_analog_temp_offset, 0644,
+		       adt7316_show_ex_analog_temp_offset,
+		       adt7316_store_ex_analog_temp_offset, 0);
 
 static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip,
-		int channel, char *buf)
+				int channel, char *buf)
 {
-	u16 data;
+	u16 data = 0;
 	u8 msb, lsb, offset;
 	int ret;
 
 	if (channel >= ADT7316_DA_MSB_DATA_REGS ||
-		(channel == 0 &&
-		(chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
-		(channel == 1 &&
-		(chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
+	    (channel == 0 &&
+	    (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
+	    (channel == 1 &&
+	    (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
 		return -EPERM;
 
 	offset = chip->dac_bits - 8;
@@ -1439,23 +1409,27 @@ static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip,
 	if (ret)
 		return -EIO;
 
-	data = (msb << offset) + (lsb & ((1 << offset) - 1));
+	if (chip->dac_bits == 12)
+		data = lsb >> ADT7316_DA_12_BIT_LSB_SHIFT;
+	else if (chip->dac_bits == 10)
+		data = lsb >> ADT7316_DA_10_BIT_LSB_SHIFT;
+	data |= msb << offset;
 
-	return sprintf(buf, "%d\n", data);
+	return sysfs_emit(buf, "%d\n", data);
 }
 
 static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
-		int channel, const char *buf, size_t len)
+				 int channel, const char *buf, size_t len)
 {
-	u8 msb, lsb, offset;
+	u8 msb, lsb, lsb_reg, offset;
 	u16 data;
 	int ret;
 
 	if (channel >= ADT7316_DA_MSB_DATA_REGS ||
-		(channel == 0 &&
-		(chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
-		(channel == 1 &&
-		(chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
+	    (channel == 0 &&
+	    (chip->config3 & ADT7316_EN_IN_TEMP_PROP_DACA)) ||
+	    (channel == 1 &&
+	    (chip->config3 & ADT7316_EN_EX_TEMP_PROP_DACB)))
 		return -EPERM;
 
 	offset = chip->dac_bits - 8;
@@ -1465,9 +1439,13 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
 		return -EINVAL;
 
 	if (chip->dac_bits > 8) {
-		lsb = data & (1 << offset);
+		lsb = data & ((1 << offset) - 1);
+		if (chip->dac_bits == 12)
+			lsb_reg = lsb << ADT7316_DA_12_BIT_LSB_SHIFT;
+		else
+			lsb_reg = lsb << ADT7316_DA_10_BIT_LSB_SHIFT;
 		ret = chip->bus.write(chip->bus.client,
-			ADT7316_DA_DATA_BASE + channel * 2, lsb);
+			ADT7316_DA_DATA_BASE + channel * 2, lsb_reg);
 		if (ret)
 			return -EIO;
 	}
@@ -1482,8 +1460,8 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
 }
 
 static ssize_t adt7316_show_DAC_A(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				  struct device_attribute *attr,
+				  char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1492,9 +1470,9 @@ static ssize_t adt7316_show_DAC_A(struct device *dev,
 }
 
 static ssize_t adt7316_store_DAC_A(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				   struct device_attribute *attr,
+				   const char *buf,
+				   size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1502,12 +1480,12 @@ static ssize_t adt7316_store_DAC_A(struct device *dev,
 	return adt7316_store_DAC(chip, 0, buf, len);
 }
 
-static IIO_DEVICE_ATTR(DAC_A, S_IRUGO | S_IWUSR, adt7316_show_DAC_A,
-		adt7316_store_DAC_A, 0);
+static IIO_DEVICE_ATTR(DAC_A, 0644, adt7316_show_DAC_A,
+		       adt7316_store_DAC_A, 0);
 
 static ssize_t adt7316_show_DAC_B(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				  struct device_attribute *attr,
+				  char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1516,9 +1494,9 @@ static ssize_t adt7316_show_DAC_B(struct device *dev,
 }
 
 static ssize_t adt7316_store_DAC_B(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				   struct device_attribute *attr,
+				   const char *buf,
+				   size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1526,12 +1504,12 @@ static ssize_t adt7316_store_DAC_B(struct device *dev,
 	return adt7316_store_DAC(chip, 1, buf, len);
 }
 
-static IIO_DEVICE_ATTR(DAC_B, S_IRUGO | S_IWUSR, adt7316_show_DAC_B,
-		adt7316_store_DAC_B, 0);
+static IIO_DEVICE_ATTR(DAC_B, 0644, adt7316_show_DAC_B,
+		       adt7316_store_DAC_B, 0);
 
 static ssize_t adt7316_show_DAC_C(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				  struct device_attribute *attr,
+				  char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1540,9 +1518,9 @@ static ssize_t adt7316_show_DAC_C(struct device *dev,
 }
 
 static ssize_t adt7316_store_DAC_C(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				   struct device_attribute *attr,
+				   const char *buf,
+				   size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1550,12 +1528,12 @@ static ssize_t adt7316_store_DAC_C(struct device *dev,
 	return adt7316_store_DAC(chip, 2, buf, len);
 }
 
-static IIO_DEVICE_ATTR(DAC_C, S_IRUGO | S_IWUSR, adt7316_show_DAC_C,
-		adt7316_store_DAC_C, 0);
+static IIO_DEVICE_ATTR(DAC_C, 0644, adt7316_show_DAC_C,
+		       adt7316_store_DAC_C, 0);
 
 static ssize_t adt7316_show_DAC_D(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				  struct device_attribute *attr,
+				  char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1564,9 +1542,9 @@ static ssize_t adt7316_show_DAC_D(struct device *dev,
 }
 
 static ssize_t adt7316_store_DAC_D(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				   struct device_attribute *attr,
+				   const char *buf,
+				   size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1574,12 +1552,12 @@ static ssize_t adt7316_store_DAC_D(struct device *dev,
 	return adt7316_store_DAC(chip, 3, buf, len);
 }
 
-static IIO_DEVICE_ATTR(DAC_D, S_IRUGO | S_IWUSR, adt7316_show_DAC_D,
-		adt7316_store_DAC_D, 0);
+static IIO_DEVICE_ATTR(DAC_D, 0644, adt7316_show_DAC_D,
+		       adt7316_store_DAC_D, 0);
 
 static ssize_t adt7316_show_device_id(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				      struct device_attribute *attr,
+				      char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1590,14 +1568,14 @@ static ssize_t adt7316_show_device_id(struct device *dev,
 	if (ret)
 		return -EIO;
 
-	return sprintf(buf, "%d\n", id);
+	return sysfs_emit(buf, "%d\n", id);
 }
 
-static IIO_DEVICE_ATTR(device_id, S_IRUGO, adt7316_show_device_id, NULL, 0);
+static IIO_DEVICE_ATTR(device_id, 0444, adt7316_show_device_id, NULL, 0);
 
 static ssize_t adt7316_show_manufactorer_id(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					    struct device_attribute *attr,
+					    char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1608,15 +1586,15 @@ static ssize_t adt7316_show_manufactorer_id(struct device *dev,
 	if (ret)
 		return -EIO;
 
-	return sprintf(buf, "%d\n", id);
+	return sysfs_emit(buf, "%d\n", id);
 }
 
-static IIO_DEVICE_ATTR(manufactorer_id, S_IRUGO,
-		adt7316_show_manufactorer_id, NULL, 0);
+static IIO_DEVICE_ATTR(manufactorer_id, 0444,
+		       adt7316_show_manufactorer_id, NULL, 0);
 
 static ssize_t adt7316_show_device_rev(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				       struct device_attribute *attr,
+				       char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1627,14 +1605,14 @@ static ssize_t adt7316_show_device_rev(struct device *dev,
 	if (ret)
 		return -EIO;
 
-	return sprintf(buf, "%d\n", rev);
+	return sysfs_emit(buf, "%d\n", rev);
 }
 
-static IIO_DEVICE_ATTR(device_rev, S_IRUGO, adt7316_show_device_rev, NULL, 0);
+static IIO_DEVICE_ATTR(device_rev, 0444, adt7316_show_device_rev, NULL, 0);
 
 static ssize_t adt7316_show_bus_type(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				     struct device_attribute *attr,
+				     char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1646,12 +1624,12 @@ static ssize_t adt7316_show_bus_type(struct device *dev,
 		return -EIO;
 
 	if (stat)
-		return sprintf(buf, "spi\n");
+		return sysfs_emit(buf, "spi\n");
 
-	return sprintf(buf, "i2c\n");
+	return sysfs_emit(buf, "i2c\n");
 }
 
-static IIO_DEVICE_ATTR(bus_type, S_IRUGO, adt7316_show_bus_type, NULL, 0);
+static IIO_DEVICE_ATTR(bus_type, 0444, adt7316_show_bus_type, NULL, 0);
 
 static struct attribute *adt7316_attributes[] = {
 	&iio_dev_attr_all_modes.dev_attr.attr,
@@ -1714,8 +1692,6 @@ static struct attribute *adt7516_attributes[] = {
 	&iio_dev_attr_DAC_update_mode.dev_attr.attr,
 	&iio_dev_attr_all_DAC_update_modes.dev_attr.attr,
 	&iio_dev_attr_update_DAC.dev_attr.attr,
-	&iio_dev_attr_DA_AB_Vref_bypass.dev_attr.attr,
-	&iio_dev_attr_DA_CD_Vref_bypass.dev_attr.attr,
 	&iio_dev_attr_DAC_internal_Vref.dev_attr.attr,
 	&iio_dev_attr_VDD.dev_attr.attr,
 	&iio_dev_attr_in_temp.dev_attr.attr,
@@ -1755,44 +1731,44 @@ static irqreturn_t adt7316_event_handler(int irq, void *private)
 		if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX)
 			stat1 &= 0x1F;
 
-		time = iio_get_time_ns();
-		if (stat1 & (1 << 0))
+		time = iio_get_time_ns(indio_dev);
+		if (stat1 & BIT(0))
 			iio_push_event(indio_dev,
 				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
 							    IIO_EV_TYPE_THRESH,
 							    IIO_EV_DIR_RISING),
 				       time);
-		if (stat1 & (1 << 1))
+		if (stat1 & BIT(1))
 			iio_push_event(indio_dev,
 				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 0,
 							    IIO_EV_TYPE_THRESH,
 							    IIO_EV_DIR_FALLING),
 				       time);
-		if (stat1 & (1 << 2))
+		if (stat1 & BIT(2))
 			iio_push_event(indio_dev,
 				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
 							    IIO_EV_TYPE_THRESH,
 							    IIO_EV_DIR_RISING),
 				       time);
-		if (stat1 & (1 << 3))
+		if (stat1 & BIT(3))
 			iio_push_event(indio_dev,
 				       IIO_UNMOD_EVENT_CODE(IIO_TEMP, 1,
 							    IIO_EV_TYPE_THRESH,
 							    IIO_EV_DIR_FALLING),
 				       time);
-		if (stat1 & (1 << 5))
+		if (stat1 & BIT(5))
 			iio_push_event(indio_dev,
 				       IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1,
 							    IIO_EV_TYPE_THRESH,
 							    IIO_EV_DIR_EITHER),
 				       time);
-		if (stat1 & (1 << 6))
+		if (stat1 & BIT(6))
 			iio_push_event(indio_dev,
 				       IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2,
 							    IIO_EV_TYPE_THRESH,
 							    IIO_EV_DIR_EITHER),
 				       time);
-		if (stat1 & (1 << 7))
+		if (stat1 & BIT(7))
 			iio_push_event(indio_dev,
 				       IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 3,
 							    IIO_EV_TYPE_THRESH,
@@ -1807,32 +1783,69 @@ static irqreturn_t adt7316_event_handler(int irq, void *private)
 							    0,
 							    IIO_EV_TYPE_THRESH,
 							    IIO_EV_DIR_RISING),
-				       iio_get_time_ns());
+				       iio_get_time_ns(indio_dev));
 	}
 
 	return IRQ_HANDLED;
 }
 
+static int adt7316_setup_irq(struct iio_dev *indio_dev)
+{
+	struct adt7316_chip_info *chip = iio_priv(indio_dev);
+	int irq_type, ret;
+
+	irq_type = irq_get_trigger_type(chip->bus.irq);
+
+	switch (irq_type) {
+	case IRQF_TRIGGER_HIGH:
+	case IRQF_TRIGGER_RISING:
+		break;
+	case IRQF_TRIGGER_LOW:
+	case IRQF_TRIGGER_FALLING:
+		break;
+	default:
+		dev_info(&indio_dev->dev, "mode %d unsupported, using IRQF_TRIGGER_LOW\n",
+			 irq_type);
+		irq_type = IRQF_TRIGGER_LOW;
+		break;
+	}
+
+	ret = devm_request_threaded_irq(&indio_dev->dev, chip->bus.irq,
+					NULL, adt7316_event_handler,
+					irq_type | IRQF_ONESHOT,
+					indio_dev->name, indio_dev);
+	if (ret) {
+		dev_err(&indio_dev->dev, "failed to request irq %d\n",
+			chip->bus.irq);
+		return ret;
+	}
+
+	if (irq_type & IRQF_TRIGGER_HIGH)
+		chip->config1 |= ADT7316_INT_POLARITY;
+
+	return 0;
+}
+
 /*
  * Show mask of enabled interrupts in Hex.
  */
 static ssize_t adt7316_show_int_mask(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+				     struct device_attribute *attr,
+				     char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "0x%x\n", chip->int_mask);
+	return sysfs_emit(buf, "0x%x\n", chip->int_mask);
 }
 
 /*
  * Set 1 to the mask in Hex to enabled interrupts.
  */
 static ssize_t adt7316_set_int_mask(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				    struct device_attribute *attr,
+				    const char *buf,
+				    size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1869,9 +1882,10 @@ static ssize_t adt7316_set_int_mask(struct device *dev,
 
 	return len;
 }
+
 static inline ssize_t adt7316_show_ad_bound(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					    struct device_attribute *attr,
+					    char *buf)
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
@@ -1881,7 +1895,7 @@ static inline ssize_t adt7316_show_ad_bound(struct device *dev,
 	int ret;
 
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
-		this_attr->address > ADT7316_EX_TEMP_LOW)
+	    this_attr->address > ADT7316_EX_TEMP_LOW)
 		return -EPERM;
 
 	ret = chip->bus.read(chip->bus.client, this_attr->address, &val);
@@ -1891,18 +1905,18 @@ static inline ssize_t adt7316_show_ad_bound(struct device *dev,
 	data = (int)val;
 
 	if (!((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
-		(chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)) {
+	      (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0)) {
 		if (data & 0x80)
 			data -= 256;
 	}
 
-	return sprintf(buf, "%d\n", data);
+	return sysfs_emit(buf, "%d\n", data);
 }
 
 static inline ssize_t adt7316_set_ad_bound(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+					   struct device_attribute *attr,
+					   const char *buf,
+					   size_t len)
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
@@ -1912,7 +1926,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev,
 	int ret;
 
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT73XX &&
-		this_attr->address > ADT7316_EX_TEMP_LOW)
+	    this_attr->address > ADT7316_EX_TEMP_LOW)
 		return -EPERM;
 
 	ret = kstrtoint(buf, 10, &data);
@@ -1920,7 +1934,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev,
 		return -EINVAL;
 
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX &&
-		(chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) {
+	    (chip->config1 & ADT7516_SEL_AIN1_2_EX_TEMP_MASK) == 0) {
 		if (data > 255 || data < 0)
 			return -EINVAL;
 	} else {
@@ -1941,19 +1955,19 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev,
 }
 
 static ssize_t adt7316_show_int_enabled(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
+					struct device_attribute *attr,
+					char *buf)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 
-	return sprintf(buf, "%d\n", !!(chip->config1 & ADT7316_INT_EN));
+	return sysfs_emit(buf, "%d\n", !!(chip->config1 & ADT7316_INT_EN));
 }
 
 static ssize_t adt7316_set_int_enabled(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
+				       struct device_attribute *attr,
+				       const char *buf,
+				       size_t len)
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
@@ -1974,61 +1988,61 @@ static ssize_t adt7316_set_int_enabled(struct device *dev,
 }
 
 static IIO_DEVICE_ATTR(int_mask,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_int_mask, adt7316_set_int_mask,
 		       0);
 static IIO_DEVICE_ATTR(in_temp_high_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7316_IN_TEMP_HIGH);
 static IIO_DEVICE_ATTR(in_temp_low_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7316_IN_TEMP_LOW);
 static IIO_DEVICE_ATTR(ex_temp_high_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7316_EX_TEMP_HIGH);
 static IIO_DEVICE_ATTR(ex_temp_low_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7316_EX_TEMP_LOW);
 
 /* NASTY duplication to be fixed */
 static IIO_DEVICE_ATTR(ex_temp_ain1_high_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7316_EX_TEMP_HIGH);
 static IIO_DEVICE_ATTR(ex_temp_ain1_low_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7316_EX_TEMP_LOW);
 static IIO_DEVICE_ATTR(ain2_high_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7516_AIN2_HIGH);
 static IIO_DEVICE_ATTR(ain2_low_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7516_AIN2_LOW);
 static IIO_DEVICE_ATTR(ain3_high_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7516_AIN3_HIGH);
 static IIO_DEVICE_ATTR(ain3_low_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7516_AIN3_LOW);
 static IIO_DEVICE_ATTR(ain4_high_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7516_AIN4_HIGH);
 static IIO_DEVICE_ATTR(ain4_low_value,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_ad_bound, adt7316_set_ad_bound,
 		       ADT7516_AIN4_LOW);
 static IIO_DEVICE_ATTR(int_enabled,
-		       S_IRUGO | S_IWUSR,
+		       0644,
 		       adt7316_show_int_enabled,
 		       adt7316_set_int_enabled, 0);
 
@@ -2042,7 +2056,7 @@ static struct attribute *adt7316_event_attributes[] = {
 	NULL,
 };
 
-static struct attribute_group adt7316_event_attribute_group = {
+static const struct attribute_group adt7316_event_attribute_group = {
 	.attrs = adt7316_event_attributes,
 	.name = "events",
 };
@@ -2063,7 +2077,7 @@ static struct attribute *adt7516_event_attributes[] = {
 	NULL,
 };
 
-static struct attribute_group adt7516_event_attribute_group = {
+static const struct attribute_group adt7516_event_attribute_group = {
 	.attrs = adt7516_event_attributes,
 	.name = "events",
 };
@@ -2084,33 +2098,29 @@ static int adt7316_enable(struct device *dev)
 
 	return _adt7316_store_enabled(chip, 1);
 }
-
-SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable);
 EXPORT_SYMBOL_GPL(adt7316_pm_ops);
+SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable);
 #endif
 
 static const struct iio_info adt7316_info = {
 	.attrs = &adt7316_attribute_group,
 	.event_attrs = &adt7316_event_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info adt7516_info = {
 	.attrs = &adt7516_attribute_group,
 	.event_attrs = &adt7516_event_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 /*
  * device probe and remove
  */
 int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
-		const char *name)
+		  const char *name)
 {
 	struct adt7316_chip_info *chip;
 	struct iio_dev *indio_dev;
-	unsigned short *adt7316_platform_data = dev->platform_data;
-	int ret = 0;
+	int ret;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*chip));
 	if (!indio_dev)
@@ -2128,9 +2138,23 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 	else
 		return -ENODEV;
 
-	chip->ldac_pin = adt7316_platform_data[1];
-	if (chip->ldac_pin) {
-		chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA;
+	if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
+		chip->dac_bits = 12;
+	else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
+		chip->dac_bits = 10;
+	else
+		chip->dac_bits = 8;
+
+	chip->ldac_pin = devm_gpiod_get_optional(dev, "adi,ldac",
+						 GPIOD_OUT_LOW);
+	if (IS_ERR(chip->ldac_pin)) {
+		ret = PTR_ERR(chip->ldac_pin);
+		dev_err(dev, "Failed to request ldac GPIO: %d\n", ret);
+		return ret;
+	}
+
+	if (!chip->ldac_pin) {
+		chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDAC;
 		if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
 			chip->config1 |= ADT7516_SEL_AIN3;
 	}
@@ -2138,7 +2162,6 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
 		chip->int_mask |= ADT7516_AIN_INT_MASK;
 
-	indio_dev->dev.parent = dev;
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
 		indio_dev->info = &adt7516_info;
 	else
@@ -2147,21 +2170,9 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	if (chip->bus.irq > 0) {
-		if (adt7316_platform_data[0])
-			chip->bus.irq_flags = adt7316_platform_data[0];
-
-		ret = devm_request_threaded_irq(dev, chip->bus.irq,
-						NULL,
-						&adt7316_event_handler,
-						chip->bus.irq_flags |
-						IRQF_ONESHOT,
-						indio_dev->name,
-						indio_dev);
+		ret = adt7316_setup_irq(indio_dev);
 		if (ret)
 			return ret;
-
-		if (chip->bus.irq_flags & IRQF_TRIGGER_HIGH)
-			chip->config1 |= ADT7316_INT_POLARITY;
 	}
 
 	ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1);
@@ -2177,7 +2188,7 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 		return ret;
 
 	dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n",
-			indio_dev->name);
+		 indio_dev->name);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/addac/adt7316.h b/drivers/staging/iio/addac/adt7316.h
index ec40fbb698a6..8c2a92ae7157 100644
--- a/drivers/staging/iio/addac/adt7316.h
+++ b/drivers/staging/iio/addac/adt7316.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * ADT7316 digital temperature sensor driver supporting ADT7316/7/8 ADT7516/7/9
  *
  * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 
 #ifndef _ADT7316_H_
@@ -17,7 +16,6 @@
 struct adt7316_bus {
 	void *client;
 	int irq;
-	int irq_flags;
 	int (*read)(void *client, u8 reg, u8 *data);
 	int (*write)(void *client, u8 reg, u8 val);
 	int (*multi_read)(void *client, u8 first_reg, u8 count, u8 *data);
@@ -31,6 +29,6 @@ extern const struct dev_pm_ops adt7316_pm_ops;
 #define ADT7316_PM_OPS NULL
 #endif
 int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
-		   const char *name);
+		  const char *name);
 
 #endif
diff --git a/drivers/staging/iio/cdc/Kconfig b/drivers/staging/iio/cdc/Kconfig
deleted file mode 100644
index 80211df8c577..000000000000
--- a/drivers/staging/iio/cdc/Kconfig
+++ /dev/null
@@ -1,36 +0,0 @@
-#
-# CDC drivers
-#
-menu "Capacitance to digital converters"
-
-config AD7150
-	tristate "Analog Devices ad7150/1/6 capacitive sensor driver"
-	depends on I2C
-	help
-	  Say yes here to build support for Analog Devices capacitive sensors.
-	  (ad7150, ad7151, ad7156) Provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7150.
-
-config AD7152
-	tristate "Analog Devices ad7152/3 capacitive sensor driver"
-	depends on I2C
-	help
-	  Say yes here to build support for Analog Devices capacitive sensors.
-	  (ad7152, ad7153) Provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7152.
-
-config AD7746
-	tristate "Analog Devices AD7745, AD7746 AD7747 capacitive sensor driver"
-	depends on I2C
-	help
-	  Say yes here to build support for Analog Devices capacitive sensors.
-	  (AD7745, AD7746, AD7747) Provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad7746.
-
-endmenu
diff --git a/drivers/staging/iio/cdc/Makefile b/drivers/staging/iio/cdc/Makefile
deleted file mode 100644
index a5fbabf5c8bf..000000000000
--- a/drivers/staging/iio/cdc/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for industrial I/O DAC drivers
-#
-
-obj-$(CONFIG_AD7150) += ad7150.o
-obj-$(CONFIG_AD7152) += ad7152.o
-obj-$(CONFIG_AD7746) += ad7746.o
diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
deleted file mode 100644
index a2b7ae3329c0..000000000000
--- a/drivers/staging/iio/cdc/ad7150.c
+++ /dev/null
@@ -1,679 +0,0 @@
-/*
- * AD7150 capacitive sensor driver supporting AD7150/1/6
- *
- * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-/*
- * AD7150 registers definition
- */
-
-#define AD7150_STATUS              0
-#define AD7150_STATUS_OUT1         (1 << 3)
-#define AD7150_STATUS_OUT2         (1 << 5)
-#define AD7150_CH1_DATA_HIGH       1
-#define AD7150_CH2_DATA_HIGH       3
-#define AD7150_CH1_AVG_HIGH        5
-#define AD7150_CH2_AVG_HIGH        7
-#define AD7150_CH1_SENSITIVITY     9
-#define AD7150_CH1_THR_HOLD_H      9
-#define AD7150_CH1_TIMEOUT         10
-#define AD7150_CH1_SETUP           11
-#define AD7150_CH2_SENSITIVITY     12
-#define AD7150_CH2_THR_HOLD_H      12
-#define AD7150_CH2_TIMEOUT         13
-#define AD7150_CH2_SETUP           14
-#define AD7150_CFG                 15
-#define AD7150_CFG_FIX             (1 << 7)
-#define AD7150_PD_TIMER            16
-#define AD7150_CH1_CAPDAC          17
-#define AD7150_CH2_CAPDAC          18
-#define AD7150_SN3                 19
-#define AD7150_SN2                 20
-#define AD7150_SN1                 21
-#define AD7150_SN0                 22
-#define AD7150_ID                  23
-
-/**
- * struct ad7150_chip_info - instance specific chip data
- * @client: i2c client for this device
- * @current_event: device always has one type of event enabled.
- *	This element stores the event code of the current one.
- * @threshold: thresholds for simple capacitance value events
- * @thresh_sensitivity: threshold for simple capacitance offset
- *	from 'average' value.
- * @mag_sensitity: threshold for magnitude of capacitance offset from
- *	from 'average' value.
- * @thresh_timeout: a timeout, in samples from the moment an
- *	adaptive threshold event occurs to when the average
- *	value jumps to current value.
- * @mag_timeout: a timeout, in sample from the moment an
- *	adaptive magnitude event occurs to when the average
- *	value jumps to the current value.
- * @old_state: store state from previous event, allowing confirmation
- *	of new condition.
- * @conversion_mode: the current conversion mode.
- * @state_lock: ensure consistent state of this structure wrt the
- *	hardware.
- */
-struct ad7150_chip_info {
-	struct i2c_client *client;
-	u64 current_event;
-	u16 threshold[2][2];
-	u8 thresh_sensitivity[2][2];
-	u8 mag_sensitivity[2][2];
-	u8 thresh_timeout[2][2];
-	u8 mag_timeout[2][2];
-	int old_state;
-	char *conversion_mode;
-	struct mutex state_lock;
-};
-
-/*
- * sysfs nodes
- */
-
-static const u8 ad7150_addresses[][6] = {
-	{ AD7150_CH1_DATA_HIGH, AD7150_CH1_AVG_HIGH,
-	  AD7150_CH1_SETUP, AD7150_CH1_THR_HOLD_H,
-	  AD7150_CH1_SENSITIVITY, AD7150_CH1_TIMEOUT },
-	{ AD7150_CH2_DATA_HIGH, AD7150_CH2_AVG_HIGH,
-	  AD7150_CH2_SETUP, AD7150_CH2_THR_HOLD_H,
-	  AD7150_CH2_SENSITIVITY, AD7150_CH2_TIMEOUT },
-};
-
-static int ad7150_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long mask)
-{
-	int ret;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		ret = i2c_smbus_read_word_data(chip->client,
-					ad7150_addresses[chan->channel][0]);
-		if (ret < 0)
-			return ret;
-		*val = swab16(ret);
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_AVERAGE_RAW:
-		ret = i2c_smbus_read_word_data(chip->client,
-					ad7150_addresses[chan->channel][1]);
-		if (ret < 0)
-			return ret;
-		*val = swab16(ret);
-		return IIO_VAL_INT;
-	default:
-		return -EINVAL;
-	}
-}
-
-static int ad7150_read_event_config(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, enum iio_event_type type,
-	enum iio_event_direction dir)
-{
-	int ret;
-	u8 threshtype;
-	bool adaptive;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-
-	ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG);
-	if (ret < 0)
-		return ret;
-
-	threshtype = (ret >> 5) & 0x03;
-	adaptive = !!(ret & 0x80);
-
-	switch (type) {
-	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		if (dir == IIO_EV_DIR_RISING)
-			return adaptive && (threshtype == 0x1);
-		return adaptive && (threshtype == 0x0);
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		if (dir == IIO_EV_DIR_RISING)
-			return adaptive && (threshtype == 0x3);
-		return adaptive && (threshtype == 0x2);
-	case IIO_EV_TYPE_THRESH:
-		if (dir == IIO_EV_DIR_RISING)
-			return !adaptive && (threshtype == 0x1);
-		return !adaptive && (threshtype == 0x0);
-	default:
-		break;
-	}
-	return -EINVAL;
-}
-
-/* lock should be held */
-static int ad7150_write_event_params(struct iio_dev *indio_dev,
-	 unsigned int chan, enum iio_event_type type,
-	 enum iio_event_direction dir)
-{
-	int ret;
-	u16 value;
-	u8 sens, timeout;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = (dir == IIO_EV_DIR_RISING);
-	u64 event_code;
-
-	event_code = IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE, chan, type, dir);
-
-	if (event_code != chip->current_event)
-		return 0;
-
-	switch (type) {
-		/* Note completely different from the adaptive versions */
-	case IIO_EV_TYPE_THRESH:
-		value = chip->threshold[rising][chan];
-		ret = i2c_smbus_write_word_data(chip->client,
-						ad7150_addresses[chan][3],
-						swab16(value));
-		if (ret < 0)
-			return ret;
-		return 0;
-	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		sens = chip->mag_sensitivity[rising][chan];
-		timeout = chip->mag_timeout[rising][chan];
-		break;
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		sens = chip->thresh_sensitivity[rising][chan];
-		timeout = chip->thresh_timeout[rising][chan];
-		break;
-	default:
-		return -EINVAL;
-	}
-	ret = i2c_smbus_write_byte_data(chip->client,
-					ad7150_addresses[chan][4],
-					sens);
-	if (ret < 0)
-		return ret;
-
-	ret = i2c_smbus_write_byte_data(chip->client,
-					ad7150_addresses[chan][5],
-					timeout);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int ad7150_write_event_config(struct iio_dev *indio_dev,
-	const struct iio_chan_spec *chan, enum iio_event_type type,
-	enum iio_event_direction dir, int state)
-{
-	u8 thresh_type, cfg, adaptive;
-	int ret;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = (dir == IIO_EV_DIR_RISING);
-	u64 event_code;
-
-	/* Something must always be turned on */
-	if (state == 0)
-		return -EINVAL;
-
-	event_code = IIO_UNMOD_EVENT_CODE(chan->type, chan->channel, type, dir);
-	if (event_code == chip->current_event)
-		return 0;
-	mutex_lock(&chip->state_lock);
-	ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG);
-	if (ret < 0)
-		goto error_ret;
-
-	cfg = ret & ~((0x03 << 5) | (0x1 << 7));
-
-	switch (type) {
-	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		adaptive = 1;
-		if (rising)
-			thresh_type = 0x1;
-		else
-			thresh_type = 0x0;
-		break;
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		adaptive = 1;
-		if (rising)
-			thresh_type = 0x3;
-		else
-			thresh_type = 0x2;
-		break;
-	case IIO_EV_TYPE_THRESH:
-		adaptive = 0;
-		if (rising)
-			thresh_type = 0x1;
-		else
-			thresh_type = 0x0;
-		break;
-	default:
-		ret = -EINVAL;
-		goto error_ret;
-	}
-
-	cfg |= (!adaptive << 7) | (thresh_type << 5);
-
-	ret = i2c_smbus_write_byte_data(chip->client, AD7150_CFG, cfg);
-	if (ret < 0)
-		goto error_ret;
-
-	chip->current_event = event_code;
-
-	/* update control attributes */
-	ret = ad7150_write_event_params(indio_dev, chan->channel, type, dir);
-error_ret:
-	mutex_unlock(&chip->state_lock);
-
-	return 0;
-}
-
-static int ad7150_read_event_value(struct iio_dev *indio_dev,
-				   const struct iio_chan_spec *chan,
-				   enum iio_event_type type,
-				   enum iio_event_direction dir,
-				   enum iio_event_info info,
-				   int *val, int *val2)
-{
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = (dir == IIO_EV_DIR_RISING);
-
-	/* Complex register sharing going on here */
-	switch (type) {
-	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		*val = chip->mag_sensitivity[rising][chan->channel];
-		return IIO_VAL_INT;
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		*val = chip->thresh_sensitivity[rising][chan->channel];
-		return IIO_VAL_INT;
-	case IIO_EV_TYPE_THRESH:
-		*val = chip->threshold[rising][chan->channel];
-		return IIO_VAL_INT;
-	default:
-		return -EINVAL;
-	}
-}
-
-static int ad7150_write_event_value(struct iio_dev *indio_dev,
-				   const struct iio_chan_spec *chan,
-				   enum iio_event_type type,
-				   enum iio_event_direction dir,
-				   enum iio_event_info info,
-				   int val, int val2)
-{
-	int ret;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = (dir == IIO_EV_DIR_RISING);
-
-	mutex_lock(&chip->state_lock);
-	switch (type) {
-	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		chip->mag_sensitivity[rising][chan->channel] = val;
-		break;
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		chip->thresh_sensitivity[rising][chan->channel] = val;
-		break;
-	case IIO_EV_TYPE_THRESH:
-		chip->threshold[rising][chan->channel] = val;
-		break;
-	default:
-		ret = -EINVAL;
-		goto error_ret;
-	}
-
-	/* write back if active */
-	ret = ad7150_write_event_params(indio_dev, chan->channel, type, dir);
-
-error_ret:
-	mutex_unlock(&chip->state_lock);
-	return ret;
-}
-
-static ssize_t ad7150_show_timeout(struct device *dev,
-				   struct device_attribute *attr,
-				   char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	u8 value;
-
-	/* use the event code for consistency reasons */
-	int chan = IIO_EVENT_CODE_EXTRACT_CHAN(this_attr->address);
-	int rising = !!(IIO_EVENT_CODE_EXTRACT_DIR(this_attr->address)
-			== IIO_EV_DIR_RISING);
-
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(this_attr->address)) {
-	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		value = chip->mag_timeout[rising][chan];
-		break;
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		value = chip->thresh_timeout[rising][chan];
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return sprintf(buf, "%d\n", value);
-}
-
-static ssize_t ad7150_store_timeout(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int chan = IIO_EVENT_CODE_EXTRACT_CHAN(this_attr->address);
-	enum iio_event_direction dir;
-	enum iio_event_type type;
-	int rising;
-	u8 data;
-	int ret;
-
-	type = IIO_EVENT_CODE_EXTRACT_TYPE(this_attr->address);
-	dir = IIO_EVENT_CODE_EXTRACT_DIR(this_attr->address);
-	rising = (dir == IIO_EV_DIR_RISING);
-
-	ret = kstrtou8(buf, 10, &data);
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&chip->state_lock);
-	switch (type) {
-	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		chip->mag_timeout[rising][chan] = data;
-		break;
-	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		chip->thresh_timeout[rising][chan] = data;
-		break;
-	default:
-		ret = -EINVAL;
-		goto error_ret;
-	}
-
-	ret = ad7150_write_event_params(indio_dev, chan, type, dir);
-error_ret:
-	mutex_unlock(&chip->state_lock);
-
-	if (ret < 0)
-		return ret;
-
-	return len;
-}
-
-#define AD7150_TIMEOUT(chan, type, dir, ev_type, ev_dir)		\
-	IIO_DEVICE_ATTR(in_capacitance##chan##_##type##_##dir##_timeout, \
-		S_IRUGO | S_IWUSR,					\
-		&ad7150_show_timeout,					\
-		&ad7150_store_timeout,					\
-		IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE,			\
-				     chan,				\
-				     IIO_EV_TYPE_##ev_type,		\
-				     IIO_EV_DIR_##ev_dir))
-static AD7150_TIMEOUT(0, mag_adaptive, rising, MAG_ADAPTIVE, RISING);
-static AD7150_TIMEOUT(0, mag_adaptive, falling, MAG_ADAPTIVE, FALLING);
-static AD7150_TIMEOUT(1, mag_adaptive, rising, MAG_ADAPTIVE, RISING);
-static AD7150_TIMEOUT(1, mag_adaptive, falling, MAG_ADAPTIVE, FALLING);
-static AD7150_TIMEOUT(0, thresh_adaptive, rising, THRESH_ADAPTIVE, RISING);
-static AD7150_TIMEOUT(0, thresh_adaptive, falling, THRESH_ADAPTIVE, FALLING);
-static AD7150_TIMEOUT(1, thresh_adaptive, rising, THRESH_ADAPTIVE, RISING);
-static AD7150_TIMEOUT(1, thresh_adaptive, falling, THRESH_ADAPTIVE, FALLING);
-
-static const struct iio_event_spec ad7150_events[] = {
-	{
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
-		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
-		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_MAG_ADAPTIVE,
-		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_MAG_ADAPTIVE,
-		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	},
-};
-
-static const struct iio_chan_spec ad7150_channels[] = {
-	{
-		.type = IIO_CAPACITANCE,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_AVERAGE_RAW),
-		.event_spec = ad7150_events,
-		.num_event_specs = ARRAY_SIZE(ad7150_events),
-	}, {
-		.type = IIO_CAPACITANCE,
-		.indexed = 1,
-		.channel = 1,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_AVERAGE_RAW),
-		.event_spec = ad7150_events,
-		.num_event_specs = ARRAY_SIZE(ad7150_events),
-	},
-};
-
-/*
- * threshold events
- */
-
-static irqreturn_t ad7150_event_handler(int irq, void *private)
-{
-	struct iio_dev *indio_dev = private;
-	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	u8 int_status;
-	s64 timestamp = iio_get_time_ns();
-	int ret;
-
-	ret = i2c_smbus_read_byte_data(chip->client, AD7150_STATUS);
-	if (ret < 0)
-		return IRQ_HANDLED;
-
-	int_status = ret;
-
-	if ((int_status & AD7150_STATUS_OUT1) &&
-	    !(chip->old_state & AD7150_STATUS_OUT1))
-		iio_push_event(indio_dev,
-			       IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE,
-						    0,
-						    IIO_EV_TYPE_THRESH,
-						    IIO_EV_DIR_RISING),
-				timestamp);
-	else if ((!(int_status & AD7150_STATUS_OUT1)) &&
-		 (chip->old_state & AD7150_STATUS_OUT1))
-		iio_push_event(indio_dev,
-			       IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE,
-						    0,
-						    IIO_EV_TYPE_THRESH,
-						    IIO_EV_DIR_FALLING),
-			       timestamp);
-
-	if ((int_status & AD7150_STATUS_OUT2) &&
-	    !(chip->old_state & AD7150_STATUS_OUT2))
-		iio_push_event(indio_dev,
-			       IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE,
-						    1,
-						    IIO_EV_TYPE_THRESH,
-						    IIO_EV_DIR_RISING),
-			       timestamp);
-	else if ((!(int_status & AD7150_STATUS_OUT2)) &&
-		 (chip->old_state & AD7150_STATUS_OUT2))
-		iio_push_event(indio_dev,
-			       IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE,
-						    1,
-						    IIO_EV_TYPE_THRESH,
-						    IIO_EV_DIR_FALLING),
-			       timestamp);
-	/* store the status to avoid repushing same events */
-	chip->old_state = int_status;
-
-	return IRQ_HANDLED;
-}
-
-/* Timeouts not currently handled by core */
-static struct attribute *ad7150_event_attributes[] = {
-	&iio_dev_attr_in_capacitance0_mag_adaptive_rising_timeout
-	.dev_attr.attr,
-	&iio_dev_attr_in_capacitance0_mag_adaptive_falling_timeout
-	.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_mag_adaptive_rising_timeout
-	.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_mag_adaptive_falling_timeout
-	.dev_attr.attr,
-	&iio_dev_attr_in_capacitance0_thresh_adaptive_rising_timeout
-	.dev_attr.attr,
-	&iio_dev_attr_in_capacitance0_thresh_adaptive_falling_timeout
-	.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_thresh_adaptive_rising_timeout
-	.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_thresh_adaptive_falling_timeout
-	.dev_attr.attr,
-	NULL,
-};
-
-static struct attribute_group ad7150_event_attribute_group = {
-	.attrs = ad7150_event_attributes,
-	.name = "events",
-};
-
-static const struct iio_info ad7150_info = {
-	.event_attrs = &ad7150_event_attribute_group,
-	.driver_module = THIS_MODULE,
-	.read_raw = &ad7150_read_raw,
-	.read_event_config = &ad7150_read_event_config,
-	.write_event_config = &ad7150_write_event_config,
-	.read_event_value = &ad7150_read_event_value,
-	.write_event_value = &ad7150_write_event_value,
-};
-
-/*
- * device probe and remove
- */
-
-static int ad7150_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
-{
-	int ret;
-	struct ad7150_chip_info *chip;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
-	if (!indio_dev)
-		return -ENOMEM;
-	chip = iio_priv(indio_dev);
-	mutex_init(&chip->state_lock);
-	/* this is only used for device removal purposes */
-	i2c_set_clientdata(client, indio_dev);
-
-	chip->client = client;
-
-	indio_dev->name = id->name;
-	indio_dev->channels = ad7150_channels;
-	indio_dev->num_channels = ARRAY_SIZE(ad7150_channels);
-	/* Establish that the iio_dev is a child of the i2c device */
-	indio_dev->dev.parent = &client->dev;
-
-	indio_dev->info = &ad7150_info;
-
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	if (client->irq) {
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-					   NULL,
-					   &ad7150_event_handler,
-					   IRQF_TRIGGER_RISING |
-					   IRQF_TRIGGER_FALLING |
-					   IRQF_ONESHOT,
-					   "ad7150_irq1",
-					   indio_dev);
-		if (ret)
-			return ret;
-	}
-
-	if (client->dev.platform_data) {
-		ret = devm_request_threaded_irq(&client->dev, *(unsigned int *)
-					   client->dev.platform_data,
-					   NULL,
-					   &ad7150_event_handler,
-					   IRQF_TRIGGER_RISING |
-					   IRQF_TRIGGER_FALLING |
-					   IRQF_ONESHOT,
-					   "ad7150_irq2",
-					   indio_dev);
-		if (ret)
-			return ret;
-	}
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	dev_info(&client->dev, "%s capacitive sensor registered,irq: %d\n",
-		 id->name, client->irq);
-
-	return 0;
-}
-
-static int ad7150_remove(struct i2c_client *client)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-	iio_device_unregister(indio_dev);
-
-	return 0;
-}
-
-static const struct i2c_device_id ad7150_id[] = {
-	{ "ad7150", 0 },
-	{ "ad7151", 0 },
-	{ "ad7156", 0 },
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, ad7150_id);
-
-static struct i2c_driver ad7150_driver = {
-	.driver = {
-		.name = "ad7150",
-	},
-	.probe = ad7150_probe,
-	.remove = ad7150_remove,
-	.id_table = ad7150_id,
-};
-module_i2c_driver(ad7150_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices AD7150/1/6 capacitive sensor driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/cdc/ad7152.c b/drivers/staging/iio/cdc/ad7152.c
deleted file mode 100644
index 87110d940e9a..000000000000
--- a/drivers/staging/iio/cdc/ad7152.c
+++ /dev/null
@@ -1,543 +0,0 @@
-/*
- * AD7152 capacitive sensor driver supporting AD7152/3
- *
- * Copyright 2010-2011a Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/i2c.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-/*
- * TODO: Check compliance of calibbias with abi (units)
- */
-/*
- * AD7152 registers definition
- */
-
-#define AD7152_REG_STATUS		0
-#define AD7152_REG_CH1_DATA_HIGH	1
-#define AD7152_REG_CH2_DATA_HIGH	3
-#define AD7152_REG_CH1_OFFS_HIGH	5
-#define AD7152_REG_CH2_OFFS_HIGH	7
-#define AD7152_REG_CH1_GAIN_HIGH	9
-#define AD7152_REG_CH1_SETUP		11
-#define AD7152_REG_CH2_GAIN_HIGH	12
-#define AD7152_REG_CH2_SETUP		14
-#define AD7152_REG_CFG			15
-#define AD7152_REG_RESEVERD		16
-#define AD7152_REG_CAPDAC_POS		17
-#define AD7152_REG_CAPDAC_NEG		18
-#define AD7152_REG_CFG2			26
-
-/* Status Register Bit Designations (AD7152_REG_STATUS) */
-#define AD7152_STATUS_RDY1		(1 << 0)
-#define AD7152_STATUS_RDY2		(1 << 1)
-#define AD7152_STATUS_C1C2		(1 << 2)
-#define AD7152_STATUS_PWDN		(1 << 7)
-
-/* Setup Register Bit Designations (AD7152_REG_CHx_SETUP) */
-#define AD7152_SETUP_CAPDIFF		(1 << 5)
-#define AD7152_SETUP_RANGE_2pF		(0 << 6)
-#define AD7152_SETUP_RANGE_0_5pF	(1 << 6)
-#define AD7152_SETUP_RANGE_1pF		(2 << 6)
-#define AD7152_SETUP_RANGE_4pF		(3 << 6)
-#define AD7152_SETUP_RANGE(x)		((x) << 6)
-
-/* Config Register Bit Designations (AD7152_REG_CFG) */
-#define AD7152_CONF_CH2EN		(1 << 3)
-#define AD7152_CONF_CH1EN		(1 << 4)
-#define AD7152_CONF_MODE_IDLE		(0 << 0)
-#define AD7152_CONF_MODE_CONT_CONV	(1 << 0)
-#define AD7152_CONF_MODE_SINGLE_CONV	(2 << 0)
-#define AD7152_CONF_MODE_OFFS_CAL	(5 << 0)
-#define AD7152_CONF_MODE_GAIN_CAL	(6 << 0)
-
-/* Capdac Register Bit Designations (AD7152_REG_CAPDAC_XXX) */
-#define AD7152_CAPDAC_DACEN		(1 << 7)
-#define AD7152_CAPDAC_DACP(x)		((x) & 0x1F)
-
-/* CFG2 Register Bit Designations (AD7152_REG_CFG2) */
-#define AD7152_CFG2_OSR(x)		(((x) & 0x3) << 4)
-
-enum {
-	AD7152_DATA,
-	AD7152_OFFS,
-	AD7152_GAIN,
-	AD7152_SETUP
-};
-
-/*
- * struct ad7152_chip_info - chip specific information
- */
-
-struct ad7152_chip_info {
-	struct i2c_client *client;
-	/*
-	 * Capacitive channel digital filter setup;
-	 * conversion time/update rate setup per channel
-	 */
-	u8	filter_rate_setup;
-	u8	setup[2];
-};
-
-static inline ssize_t ad7152_start_calib(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len,
-					 u8 regval)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7152_chip_info *chip = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	bool doit;
-	int ret, timeout = 10;
-
-	ret = strtobool(buf, &doit);
-	if (ret < 0)
-		return ret;
-
-	if (!doit)
-		return 0;
-
-	if (this_attr->address == 0)
-		regval |= AD7152_CONF_CH1EN;
-	else
-		regval |= AD7152_CONF_CH2EN;
-
-	mutex_lock(&indio_dev->mlock);
-	ret = i2c_smbus_write_byte_data(chip->client, AD7152_REG_CFG, regval);
-	if (ret < 0) {
-		mutex_unlock(&indio_dev->mlock);
-		return ret;
-	}
-
-	do {
-		mdelay(20);
-		ret = i2c_smbus_read_byte_data(chip->client, AD7152_REG_CFG);
-		if (ret < 0) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-	} while ((ret == regval) && timeout--);
-
-	mutex_unlock(&indio_dev->mlock);
-	return len;
-}
-static ssize_t ad7152_start_offset_calib(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	return ad7152_start_calib(dev, attr, buf, len,
-				  AD7152_CONF_MODE_OFFS_CAL);
-}
-static ssize_t ad7152_start_gain_calib(struct device *dev,
-				       struct device_attribute *attr,
-				       const char *buf,
-				       size_t len)
-{
-	return ad7152_start_calib(dev, attr, buf, len,
-				  AD7152_CONF_MODE_GAIN_CAL);
-}
-
-static IIO_DEVICE_ATTR(in_capacitance0_calibbias_calibration,
-		       S_IWUSR, NULL, ad7152_start_offset_calib, 0);
-static IIO_DEVICE_ATTR(in_capacitance1_calibbias_calibration,
-		       S_IWUSR, NULL, ad7152_start_offset_calib, 1);
-static IIO_DEVICE_ATTR(in_capacitance0_calibscale_calibration,
-		       S_IWUSR, NULL, ad7152_start_gain_calib, 0);
-static IIO_DEVICE_ATTR(in_capacitance1_calibscale_calibration,
-		       S_IWUSR, NULL, ad7152_start_gain_calib, 1);
-
-/* Values are Update Rate (Hz), Conversion Time (ms) + 1*/
-static const unsigned char ad7152_filter_rate_table[][2] = {
-	{200, 5 + 1}, {50, 20 + 1}, {20, 50 + 1}, {17, 60 + 1},
-};
-
-static ssize_t ad7152_show_filter_rate_setup(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7152_chip_info *chip = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n",
-		       ad7152_filter_rate_table[chip->filter_rate_setup][0]);
-}
-
-static ssize_t ad7152_store_filter_rate_setup(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7152_chip_info *chip = iio_priv(indio_dev);
-	u8 data;
-	int ret, i;
-
-	ret = kstrtou8(buf, 10, &data);
-	if (ret < 0)
-		return ret;
-
-	for (i = 0; i < ARRAY_SIZE(ad7152_filter_rate_table); i++)
-		if (data >= ad7152_filter_rate_table[i][0])
-			break;
-
-	if (i >= ARRAY_SIZE(ad7152_filter_rate_table))
-		i = ARRAY_SIZE(ad7152_filter_rate_table) - 1;
-
-	mutex_lock(&indio_dev->mlock);
-	ret = i2c_smbus_write_byte_data(chip->client,
-			AD7152_REG_CFG2, AD7152_CFG2_OSR(i));
-	if (ret < 0) {
-		mutex_unlock(&indio_dev->mlock);
-		return ret;
-	}
-
-	chip->filter_rate_setup = i;
-	mutex_unlock(&indio_dev->mlock);
-
-	return len;
-}
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR,
-		ad7152_show_filter_rate_setup,
-		ad7152_store_filter_rate_setup);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("200 50 20 17");
-
-static IIO_CONST_ATTR(in_capacitance_scale_available,
-		      "0.000061050 0.000030525 0.000015263 0.000007631");
-
-static struct attribute *ad7152_attributes[] = {
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_dev_attr_in_capacitance0_calibbias_calibration.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_calibbias_calibration.dev_attr.attr,
-	&iio_dev_attr_in_capacitance0_calibscale_calibration.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_calibscale_calibration.dev_attr.attr,
-	&iio_const_attr_in_capacitance_scale_available.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ad7152_attribute_group = {
-	.attrs = ad7152_attributes,
-};
-
-static const u8 ad7152_addresses[][4] = {
-	{ AD7152_REG_CH1_DATA_HIGH, AD7152_REG_CH1_OFFS_HIGH,
-	  AD7152_REG_CH1_GAIN_HIGH, AD7152_REG_CH1_SETUP },
-	{ AD7152_REG_CH2_DATA_HIGH, AD7152_REG_CH2_OFFS_HIGH,
-	  AD7152_REG_CH2_GAIN_HIGH, AD7152_REG_CH2_SETUP },
-};
-
-/* Values are nano relative to pf base. */
-static const int ad7152_scale_table[] = {
-	30525, 7631, 15263, 61050
-};
-
-static int ad7152_write_raw(struct iio_dev *indio_dev,
-			    struct iio_chan_spec const *chan,
-			    int val,
-			    int val2,
-			    long mask)
-{
-	struct ad7152_chip_info *chip = iio_priv(indio_dev);
-	int ret, i;
-
-	mutex_lock(&indio_dev->mlock);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBSCALE:
-		if (val != 1) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		val = (val2 * 1024) / 15625;
-
-		ret = i2c_smbus_write_word_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_GAIN],
-				swab16(val));
-		if (ret < 0)
-			goto out;
-
-		ret = 0;
-		break;
-
-	case IIO_CHAN_INFO_CALIBBIAS:
-		if ((val < 0) | (val > 0xFFFF)) {
-			ret = -EINVAL;
-			goto out;
-		}
-		ret = i2c_smbus_write_word_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_OFFS],
-				swab16(val));
-		if (ret < 0)
-			goto out;
-
-		ret = 0;
-		break;
-	case IIO_CHAN_INFO_SCALE:
-		if (val != 0) {
-			ret = -EINVAL;
-			goto out;
-		}
-		for (i = 0; i < ARRAY_SIZE(ad7152_scale_table); i++)
-			if (val2 == ad7152_scale_table[i])
-				break;
-
-		chip->setup[chan->channel] &= ~AD7152_SETUP_RANGE_4pF;
-		chip->setup[chan->channel] |= AD7152_SETUP_RANGE(i);
-
-		ret = i2c_smbus_write_byte_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_SETUP],
-				chip->setup[chan->channel]);
-		if (ret < 0)
-			goto out;
-
-		ret = 0;
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-	return ret;
-}
-static int ad7152_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val, int *val2,
-			   long mask)
-{
-	struct ad7152_chip_info *chip = iio_priv(indio_dev);
-	int ret;
-	u8 regval = 0;
-
-	mutex_lock(&indio_dev->mlock);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		/* First set whether in differential mode */
-
-		regval = chip->setup[chan->channel];
-
-		if (chan->differential)
-			chip->setup[chan->channel] |= AD7152_SETUP_CAPDIFF;
-		else
-			chip->setup[chan->channel] &= ~AD7152_SETUP_CAPDIFF;
-
-		if (regval != chip->setup[chan->channel]) {
-			ret = i2c_smbus_write_byte_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_SETUP],
-				chip->setup[chan->channel]);
-			if (ret < 0)
-				goto out;
-		}
-		/* Make sure the channel is enabled */
-		if (chan->channel == 0)
-			regval = AD7152_CONF_CH1EN;
-		else
-			regval = AD7152_CONF_CH2EN;
-
-		/* Trigger a single read */
-		regval |= AD7152_CONF_MODE_SINGLE_CONV;
-		ret = i2c_smbus_write_byte_data(chip->client, AD7152_REG_CFG,
-				regval);
-		if (ret < 0)
-			goto out;
-
-		msleep(ad7152_filter_rate_table[chip->filter_rate_setup][1]);
-		/* Now read the actual register */
-		ret = i2c_smbus_read_word_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_DATA]);
-		if (ret < 0)
-			goto out;
-		*val = swab16(ret);
-
-		if (chan->differential)
-			*val -= 0x8000;
-
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_CALIBSCALE:
-
-		ret = i2c_smbus_read_word_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_GAIN]);
-		if (ret < 0)
-			goto out;
-		/* 1 + gain_val / 2^16 */
-		*val = 1;
-		*val2 = (15625 * swab16(ret)) / 1024;
-
-		ret = IIO_VAL_INT_PLUS_MICRO;
-		break;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		ret = i2c_smbus_read_word_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_OFFS]);
-		if (ret < 0)
-			goto out;
-		*val = swab16(ret);
-
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_SCALE:
-		ret = i2c_smbus_read_byte_data(chip->client,
-				ad7152_addresses[chan->channel][AD7152_SETUP]);
-		if (ret < 0)
-			goto out;
-		*val = 0;
-		*val2 = ad7152_scale_table[ret >> 6];
-
-		ret = IIO_VAL_INT_PLUS_NANO;
-		break;
-	default:
-		ret = -EINVAL;
-	}
-out:
-	mutex_unlock(&indio_dev->mlock);
-	return ret;
-}
-
-static int ad7152_write_raw_get_fmt(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       long mask)
-{
-	switch (mask) {
-	case IIO_CHAN_INFO_SCALE:
-		return IIO_VAL_INT_PLUS_NANO;
-	default:
-		return IIO_VAL_INT_PLUS_MICRO;
-	}
-}
-
-static const struct iio_info ad7152_info = {
-	.attrs = &ad7152_attribute_group,
-	.read_raw = &ad7152_read_raw,
-	.write_raw = &ad7152_write_raw,
-	.write_raw_get_fmt = &ad7152_write_raw_get_fmt,
-	.driver_module = THIS_MODULE,
-};
-
-static const struct iio_chan_spec ad7152_channels[] = {
-	{
-		.type = IIO_CAPACITANCE,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) |
-		BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-	}, {
-		.type = IIO_CAPACITANCE,
-		.differential = 1,
-		.indexed = 1,
-		.channel = 0,
-		.channel2 = 2,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) |
-		BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-	}, {
-		.type = IIO_CAPACITANCE,
-		.indexed = 1,
-		.channel = 1,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) |
-		BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-	}, {
-		.type = IIO_CAPACITANCE,
-		.differential = 1,
-		.indexed = 1,
-		.channel = 1,
-		.channel2 = 3,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) |
-		BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-	}
-};
-/*
- * device probe and remove
- */
-
-static int ad7152_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
-{
-	int ret = 0;
-	struct ad7152_chip_info *chip;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
-	if (!indio_dev)
-		return -ENOMEM;
-	chip = iio_priv(indio_dev);
-	/* this is only used for device removal purposes */
-	i2c_set_clientdata(client, indio_dev);
-
-	chip->client = client;
-
-	/* Establish that the iio_dev is a child of the i2c device */
-	indio_dev->name = id->name;
-	indio_dev->dev.parent = &client->dev;
-	indio_dev->info = &ad7152_info;
-	indio_dev->channels = ad7152_channels;
-	if (id->driver_data == 0)
-		indio_dev->num_channels = ARRAY_SIZE(ad7152_channels);
-	else
-		indio_dev->num_channels = 2;
-	indio_dev->num_channels = ARRAY_SIZE(ad7152_channels);
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	dev_err(&client->dev, "%s capacitive sensor registered\n", id->name);
-
-	return 0;
-}
-
-static int ad7152_remove(struct i2c_client *client)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-	iio_device_unregister(indio_dev);
-
-	return 0;
-}
-
-static const struct i2c_device_id ad7152_id[] = {
-	{ "ad7152", 0 },
-	{ "ad7153", 1 },
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, ad7152_id);
-
-static struct i2c_driver ad7152_driver = {
-	.driver = {
-		.name = KBUILD_MODNAME,
-	},
-	.probe = ad7152_probe,
-	.remove = ad7152_remove,
-	.id_table = ad7152_id,
-};
-module_i2c_driver(ad7152_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices AD7152/3 capacitive sensor driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c
deleted file mode 100644
index e6e9eaa9eab5..000000000000
--- a/drivers/staging/iio/cdc/ad7746.c
+++ /dev/null
@@ -1,791 +0,0 @@
-/*
- * AD7746 capacitive sensor driver supporting AD7745, AD7746 and AD7747
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/i2c.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/stat.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-#include "ad7746.h"
-
-/*
- * AD7746 Register Definition
- */
-
-#define AD7746_REG_STATUS		0
-#define AD7746_REG_CAP_DATA_HIGH	1
-#define AD7746_REG_CAP_DATA_MID		2
-#define AD7746_REG_CAP_DATA_LOW		3
-#define AD7746_REG_VT_DATA_HIGH		4
-#define AD7746_REG_VT_DATA_MID		5
-#define AD7746_REG_VT_DATA_LOW		6
-#define AD7746_REG_CAP_SETUP		7
-#define AD7746_REG_VT_SETUP		8
-#define AD7746_REG_EXC_SETUP		9
-#define AD7746_REG_CFG			10
-#define AD7746_REG_CAPDACA		11
-#define AD7746_REG_CAPDACB		12
-#define AD7746_REG_CAP_OFFH		13
-#define AD7746_REG_CAP_OFFL		14
-#define AD7746_REG_CAP_GAINH		15
-#define AD7746_REG_CAP_GAINL		16
-#define AD7746_REG_VOLT_GAINH		17
-#define AD7746_REG_VOLT_GAINL		18
-
-/* Status Register Bit Designations (AD7746_REG_STATUS) */
-#define AD7746_STATUS_EXCERR		(1 << 3)
-#define AD7746_STATUS_RDY		(1 << 2)
-#define AD7746_STATUS_RDYVT		(1 << 1)
-#define AD7746_STATUS_RDYCAP		(1 << 0)
-
-/* Capacitive Channel Setup Register Bit Designations (AD7746_REG_CAP_SETUP) */
-#define AD7746_CAPSETUP_CAPEN		(1 << 7)
-#define AD7746_CAPSETUP_CIN2		(1 << 6) /* AD7746 only */
-#define AD7746_CAPSETUP_CAPDIFF		(1 << 5)
-#define AD7746_CAPSETUP_CACHOP		(1 << 0)
-
-/* Voltage/Temperature Setup Register Bit Designations (AD7746_REG_VT_SETUP) */
-#define AD7746_VTSETUP_VTEN		(1 << 7)
-#define AD7746_VTSETUP_VTMD_INT_TEMP	(0 << 5)
-#define AD7746_VTSETUP_VTMD_EXT_TEMP	(1 << 5)
-#define AD7746_VTSETUP_VTMD_VDD_MON	(2 << 5)
-#define AD7746_VTSETUP_VTMD_EXT_VIN	(3 << 5)
-#define AD7746_VTSETUP_EXTREF		(1 << 4)
-#define AD7746_VTSETUP_VTSHORT		(1 << 1)
-#define AD7746_VTSETUP_VTCHOP		(1 << 0)
-
-/* Excitation Setup Register Bit Designations (AD7746_REG_EXC_SETUP) */
-#define AD7746_EXCSETUP_CLKCTRL		(1 << 7)
-#define AD7746_EXCSETUP_EXCON		(1 << 6)
-#define AD7746_EXCSETUP_EXCB		(1 << 5)
-#define AD7746_EXCSETUP_NEXCB		(1 << 4)
-#define AD7746_EXCSETUP_EXCA		(1 << 3)
-#define AD7746_EXCSETUP_NEXCA		(1 << 2)
-#define AD7746_EXCSETUP_EXCLVL(x)	(((x) & 0x3) << 0)
-
-/* Config Register Bit Designations (AD7746_REG_CFG) */
-#define AD7746_CONF_VTFS(x)		((x) << 6)
-#define AD7746_CONF_CAPFS(x)		((x) << 3)
-#define AD7746_CONF_MODE_IDLE		(0 << 0)
-#define AD7746_CONF_MODE_CONT_CONV	(1 << 0)
-#define AD7746_CONF_MODE_SINGLE_CONV	(2 << 0)
-#define AD7746_CONF_MODE_PWRDN		(3 << 0)
-#define AD7746_CONF_MODE_OFFS_CAL	(5 << 0)
-#define AD7746_CONF_MODE_GAIN_CAL	(6 << 0)
-
-/* CAPDAC Register Bit Designations (AD7746_REG_CAPDACx) */
-#define AD7746_CAPDAC_DACEN		(1 << 7)
-#define AD7746_CAPDAC_DACP(x)		((x) & 0x7F)
-
-/*
- * struct ad7746_chip_info - chip specific information
- */
-
-struct ad7746_chip_info {
-	struct i2c_client *client;
-	/*
-	 * Capacitive channel digital filter setup;
-	 * conversion time/update rate setup per channel
-	 */
-	u8	config;
-	u8	cap_setup;
-	u8	vt_setup;
-	u8	capdac[2][2];
-	s8	capdac_set;
-
-	union {
-		__be32 d32;
-		u8 d8[4];
-	} data ____cacheline_aligned;
-};
-
-enum ad7746_chan {
-	VIN,
-	VIN_VDD,
-	TEMP_INT,
-	TEMP_EXT,
-	CIN1,
-	CIN1_DIFF,
-	CIN2,
-	CIN2_DIFF,
-};
-
-static const struct iio_chan_spec ad7746_channels[] = {
-	[VIN] = {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
-		.address = AD7746_REG_VT_DATA_HIGH << 8 |
-			AD7746_VTSETUP_VTMD_EXT_VIN,
-	},
-	[VIN_VDD] = {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 1,
-		.extend_name = "supply",
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
-		.address = AD7746_REG_VT_DATA_HIGH << 8 |
-			AD7746_VTSETUP_VTMD_VDD_MON,
-	},
-	[TEMP_INT] = {
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
-		.address = AD7746_REG_VT_DATA_HIGH << 8 |
-			AD7746_VTSETUP_VTMD_INT_TEMP,
-	},
-	[TEMP_EXT] = {
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.channel = 1,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
-		.address = AD7746_REG_VT_DATA_HIGH << 8 |
-			AD7746_VTSETUP_VTMD_EXT_TEMP,
-	},
-	[CIN1] = {
-		.type = IIO_CAPACITANCE,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) | BIT(IIO_CHAN_INFO_OFFSET),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-		.address = AD7746_REG_CAP_DATA_HIGH << 8,
-	},
-	[CIN1_DIFF] = {
-		.type = IIO_CAPACITANCE,
-		.differential = 1,
-		.indexed = 1,
-		.channel = 0,
-		.channel2 = 2,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) | BIT(IIO_CHAN_INFO_OFFSET),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-		.address = AD7746_REG_CAP_DATA_HIGH << 8 |
-			AD7746_CAPSETUP_CAPDIFF
-	},
-	[CIN2] = {
-		.type = IIO_CAPACITANCE,
-		.indexed = 1,
-		.channel = 1,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) | BIT(IIO_CHAN_INFO_OFFSET),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-		.address = AD7746_REG_CAP_DATA_HIGH << 8 |
-			AD7746_CAPSETUP_CIN2,
-	},
-	[CIN2_DIFF] = {
-		.type = IIO_CAPACITANCE,
-		.differential = 1,
-		.indexed = 1,
-		.channel = 1,
-		.channel2 = 3,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_CALIBSCALE) | BIT(IIO_CHAN_INFO_OFFSET),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBBIAS) |
-		BIT(IIO_CHAN_INFO_SCALE),
-		.address = AD7746_REG_CAP_DATA_HIGH << 8 |
-			AD7746_CAPSETUP_CAPDIFF | AD7746_CAPSETUP_CIN2,
-	}
-};
-
-/* Values are Update Rate (Hz), Conversion Time (ms) + 1*/
-static const unsigned char ad7746_vt_filter_rate_table[][2] = {
-	{50, 20 + 1}, {31, 32 + 1}, {16, 62 + 1}, {8, 122 + 1},
-};
-
-static const unsigned char ad7746_cap_filter_rate_table[][2] = {
-	{91, 11 + 1}, {84, 12 + 1}, {50, 20 + 1}, {26, 38 + 1},
-	{16, 62 + 1}, {13, 77 + 1}, {11, 92 + 1}, {9, 110 + 1},
-};
-
-static int ad7746_select_channel(struct iio_dev *indio_dev,
-			    struct iio_chan_spec const *chan)
-{
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-	int ret, delay;
-	u8 vt_setup, cap_setup;
-
-	switch (chan->type) {
-	case IIO_CAPACITANCE:
-		cap_setup = (chan->address & 0xFF) | AD7746_CAPSETUP_CAPEN;
-		vt_setup = chip->vt_setup & ~AD7746_VTSETUP_VTEN;
-		delay = ad7746_cap_filter_rate_table[(chip->config >> 3) &
-			0x7][1];
-
-		if (chip->capdac_set != chan->channel) {
-			ret = i2c_smbus_write_byte_data(chip->client,
-				AD7746_REG_CAPDACA,
-				chip->capdac[chan->channel][0]);
-			if (ret < 0)
-				return ret;
-			ret = i2c_smbus_write_byte_data(chip->client,
-				AD7746_REG_CAPDACB,
-				chip->capdac[chan->channel][1]);
-			if (ret < 0)
-				return ret;
-
-			chip->capdac_set = chan->channel;
-		}
-		break;
-	case IIO_VOLTAGE:
-	case IIO_TEMP:
-		vt_setup = (chan->address & 0xFF) | AD7746_VTSETUP_VTEN;
-		cap_setup = chip->cap_setup & ~AD7746_CAPSETUP_CAPEN;
-		delay = ad7746_cap_filter_rate_table[(chip->config >> 6) &
-			0x3][1];
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (chip->cap_setup != cap_setup) {
-		ret = i2c_smbus_write_byte_data(chip->client,
-						AD7746_REG_CAP_SETUP,
-						cap_setup);
-		if (ret < 0)
-			return ret;
-
-		chip->cap_setup = cap_setup;
-	}
-
-	if (chip->vt_setup != vt_setup) {
-		ret = i2c_smbus_write_byte_data(chip->client,
-						AD7746_REG_VT_SETUP,
-						vt_setup);
-		if (ret < 0)
-			return ret;
-
-		chip->vt_setup = vt_setup;
-	}
-
-	return delay;
-}
-
-static inline ssize_t ad7746_start_calib(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len,
-					 u8 regval)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-	bool doit;
-	int ret, timeout = 10;
-
-	ret = strtobool(buf, &doit);
-	if (ret < 0)
-		return ret;
-
-	if (!doit)
-		return 0;
-
-	mutex_lock(&indio_dev->mlock);
-	regval |= chip->config;
-	ret = i2c_smbus_write_byte_data(chip->client, AD7746_REG_CFG, regval);
-	if (ret < 0) {
-		mutex_unlock(&indio_dev->mlock);
-		return ret;
-	}
-
-	do {
-		msleep(20);
-		ret = i2c_smbus_read_byte_data(chip->client, AD7746_REG_CFG);
-		if (ret < 0) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-	} while ((ret == regval) && timeout--);
-
-	mutex_unlock(&indio_dev->mlock);
-
-	return len;
-}
-
-static ssize_t ad7746_start_offset_calib(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	int ret = ad7746_select_channel(indio_dev,
-			      &ad7746_channels[to_iio_dev_attr(attr)->address]);
-	if (ret < 0)
-		return ret;
-
-	return ad7746_start_calib(dev, attr, buf, len,
-				  AD7746_CONF_MODE_OFFS_CAL);
-}
-
-static ssize_t ad7746_start_gain_calib(struct device *dev,
-				       struct device_attribute *attr,
-				       const char *buf,
-				       size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	int ret = ad7746_select_channel(indio_dev,
-			      &ad7746_channels[to_iio_dev_attr(attr)->address]);
-	if (ret < 0)
-		return ret;
-
-	return ad7746_start_calib(dev, attr, buf, len,
-				  AD7746_CONF_MODE_GAIN_CAL);
-}
-
-static IIO_DEVICE_ATTR(in_capacitance0_calibbias_calibration,
-		       S_IWUSR, NULL, ad7746_start_offset_calib, CIN1);
-static IIO_DEVICE_ATTR(in_capacitance1_calibbias_calibration,
-		       S_IWUSR, NULL, ad7746_start_offset_calib, CIN2);
-static IIO_DEVICE_ATTR(in_capacitance0_calibscale_calibration,
-		       S_IWUSR, NULL, ad7746_start_gain_calib, CIN1);
-static IIO_DEVICE_ATTR(in_capacitance1_calibscale_calibration,
-		       S_IWUSR, NULL, ad7746_start_gain_calib, CIN2);
-static IIO_DEVICE_ATTR(in_voltage0_calibscale_calibration,
-		       S_IWUSR, NULL, ad7746_start_gain_calib, VIN);
-
-static ssize_t ad7746_show_cap_filter_rate_setup(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", ad7746_cap_filter_rate_table[
-			(chip->config >> 3) & 0x7][0]);
-}
-
-static ssize_t ad7746_store_cap_filter_rate_setup(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-	u8 data;
-	int ret, i;
-
-	ret = kstrtou8(buf, 10, &data);
-	if (ret < 0)
-		return ret;
-
-	for (i = 0; i < ARRAY_SIZE(ad7746_cap_filter_rate_table); i++)
-		if (data >= ad7746_cap_filter_rate_table[i][0])
-			break;
-
-	if (i >= ARRAY_SIZE(ad7746_cap_filter_rate_table))
-		i = ARRAY_SIZE(ad7746_cap_filter_rate_table) - 1;
-
-	mutex_lock(&indio_dev->mlock);
-	chip->config &= ~AD7746_CONF_CAPFS(0x7);
-	chip->config |= AD7746_CONF_CAPFS(i);
-	mutex_unlock(&indio_dev->mlock);
-
-	return len;
-}
-
-static ssize_t ad7746_show_vt_filter_rate_setup(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", ad7746_vt_filter_rate_table[
-			(chip->config >> 6) & 0x3][0]);
-}
-
-static ssize_t ad7746_store_vt_filter_rate_setup(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-	u8 data;
-	int ret, i;
-
-	ret = kstrtou8(buf, 10, &data);
-	if (ret < 0)
-		return ret;
-
-	for (i = 0; i < ARRAY_SIZE(ad7746_vt_filter_rate_table); i++)
-		if (data >= ad7746_vt_filter_rate_table[i][0])
-			break;
-
-	if (i >= ARRAY_SIZE(ad7746_vt_filter_rate_table))
-		i = ARRAY_SIZE(ad7746_vt_filter_rate_table) - 1;
-
-	mutex_lock(&indio_dev->mlock);
-	chip->config &= ~AD7746_CONF_VTFS(0x3);
-	chip->config |= AD7746_CONF_VTFS(i);
-	mutex_unlock(&indio_dev->mlock);
-
-	return len;
-}
-
-static IIO_DEVICE_ATTR(in_capacitance_sampling_frequency,
-		       S_IRUGO | S_IWUSR, ad7746_show_cap_filter_rate_setup,
-			ad7746_store_cap_filter_rate_setup, 0);
-
-static IIO_DEVICE_ATTR(in_voltage_sampling_frequency,
-		       S_IRUGO | S_IWUSR, ad7746_show_vt_filter_rate_setup,
-		       ad7746_store_vt_filter_rate_setup, 0);
-
-static IIO_CONST_ATTR(in_voltage_sampling_frequency_available, "50 31 16 8");
-static IIO_CONST_ATTR(in_capacitance_sampling_frequency_available,
-		       "91 84 50 26 16 13 11 9");
-
-static struct attribute *ad7746_attributes[] = {
-	&iio_dev_attr_in_capacitance_sampling_frequency.dev_attr.attr,
-	&iio_dev_attr_in_voltage_sampling_frequency.dev_attr.attr,
-	&iio_dev_attr_in_capacitance0_calibbias_calibration.dev_attr.attr,
-	&iio_dev_attr_in_capacitance0_calibscale_calibration.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_calibscale_calibration.dev_attr.attr,
-	&iio_dev_attr_in_capacitance1_calibbias_calibration.dev_attr.attr,
-	&iio_dev_attr_in_voltage0_calibscale_calibration.dev_attr.attr,
-	&iio_const_attr_in_voltage_sampling_frequency_available.dev_attr.attr,
-	&iio_const_attr_in_capacitance_sampling_frequency_available.
-	dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ad7746_attribute_group = {
-	.attrs = ad7746_attributes,
-};
-
-static int ad7746_write_raw(struct iio_dev *indio_dev,
-			    struct iio_chan_spec const *chan,
-			    int val,
-			    int val2,
-			    long mask)
-{
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-	int ret, reg;
-
-	mutex_lock(&indio_dev->mlock);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBSCALE:
-		if (val != 1) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		val = (val2 * 1024) / 15625;
-
-		switch (chan->type) {
-		case IIO_CAPACITANCE:
-			reg = AD7746_REG_CAP_GAINH;
-			break;
-		case IIO_VOLTAGE:
-			reg = AD7746_REG_VOLT_GAINH;
-			break;
-		default:
-			ret = -EINVAL;
-			goto out;
-		}
-
-		ret = i2c_smbus_write_word_data(chip->client, reg, swab16(val));
-		if (ret < 0)
-			goto out;
-
-		ret = 0;
-		break;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		if ((val < 0) | (val > 0xFFFF)) {
-			ret = -EINVAL;
-			goto out;
-		}
-		ret = i2c_smbus_write_word_data(chip->client,
-				AD7746_REG_CAP_OFFH, swab16(val));
-		if (ret < 0)
-			goto out;
-
-		ret = 0;
-		break;
-	case IIO_CHAN_INFO_OFFSET:
-		if ((val < 0) | (val > 43008000)) { /* 21pF */
-			ret = -EINVAL;
-			goto out;
-		}
-
-		/* CAPDAC Scale = 21pF_typ / 127
-		 * CIN Scale = 8.192pF / 2^24
-		 * Offset Scale = CAPDAC Scale / CIN Scale = 338646
-		 * */
-
-		val /= 338646;
-
-		chip->capdac[chan->channel][chan->differential] = (val > 0 ?
-			AD7746_CAPDAC_DACP(val) | AD7746_CAPDAC_DACEN : 0);
-
-		ret = i2c_smbus_write_byte_data(chip->client,
-			AD7746_REG_CAPDACA,
-			chip->capdac[chan->channel][0]);
-		if (ret < 0)
-			goto out;
-		ret = i2c_smbus_write_byte_data(chip->client,
-			AD7746_REG_CAPDACB,
-			chip->capdac[chan->channel][1]);
-		if (ret < 0)
-			goto out;
-
-		chip->capdac_set = chan->channel;
-
-		ret = 0;
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-	return ret;
-}
-
-static int ad7746_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val, int *val2,
-			   long mask)
-{
-	struct ad7746_chip_info *chip = iio_priv(indio_dev);
-	int ret, delay;
-	u8 regval, reg;
-
-	mutex_lock(&indio_dev->mlock);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-	case IIO_CHAN_INFO_PROCESSED:
-		ret = ad7746_select_channel(indio_dev, chan);
-		if (ret < 0)
-			goto out;
-		delay = ret;
-
-		regval = chip->config | AD7746_CONF_MODE_SINGLE_CONV;
-		ret = i2c_smbus_write_byte_data(chip->client, AD7746_REG_CFG,
-				regval);
-		if (ret < 0)
-			goto out;
-
-		msleep(delay);
-		/* Now read the actual register */
-
-		ret = i2c_smbus_read_i2c_block_data(chip->client,
-			chan->address >> 8, 3, &chip->data.d8[1]);
-
-		if (ret < 0)
-			goto out;
-
-		*val = (be32_to_cpu(chip->data.d32) & 0xFFFFFF) - 0x800000;
-
-		switch (chan->type) {
-		case IIO_TEMP:
-		/* temperature in milli degrees Celsius
-		 * T = ((*val / 2048) - 4096) * 1000
-		 */
-			*val = (*val * 125) / 256;
-			break;
-		case IIO_VOLTAGE:
-			if (chan->channel == 1) /* supply_raw*/
-				*val = *val * 6;
-			break;
-		default:
-			break;
-		}
-
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_CALIBSCALE:
-		switch (chan->type) {
-		case IIO_CAPACITANCE:
-			reg = AD7746_REG_CAP_GAINH;
-			break;
-		case IIO_VOLTAGE:
-			reg = AD7746_REG_VOLT_GAINH;
-			break;
-		default:
-			ret = -EINVAL;
-			goto out;
-		}
-
-		ret = i2c_smbus_read_word_data(chip->client, reg);
-		if (ret < 0)
-			goto out;
-		/* 1 + gain_val / 2^16 */
-		*val = 1;
-		*val2 = (15625 * swab16(ret)) / 1024;
-
-		ret = IIO_VAL_INT_PLUS_MICRO;
-		break;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		ret = i2c_smbus_read_word_data(chip->client,
-					       AD7746_REG_CAP_OFFH);
-		if (ret < 0)
-			goto out;
-		*val = swab16(ret);
-
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = AD7746_CAPDAC_DACP(chip->capdac[chan->channel]
-			[chan->differential]) * 338646;
-
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_CAPACITANCE:
-			/* 8.192pf / 2^24 */
-			*val =  0;
-			*val2 = 488;
-			ret = IIO_VAL_INT_PLUS_NANO;
-			break;
-		case IIO_VOLTAGE:
-			/* 1170mV / 2^23 */
-			*val = 1170;
-			*val2 = 23;
-			ret = IIO_VAL_FRACTIONAL_LOG2;
-			break;
-		default:
-			ret = -EINVAL;
-			break;
-		}
-
-		break;
-	default:
-		ret = -EINVAL;
-	}
-out:
-	mutex_unlock(&indio_dev->mlock);
-	return ret;
-}
-
-static const struct iio_info ad7746_info = {
-	.attrs = &ad7746_attribute_group,
-	.read_raw = &ad7746_read_raw,
-	.write_raw = &ad7746_write_raw,
-	.driver_module = THIS_MODULE,
-};
-
-/*
- * device probe and remove
- */
-
-static int ad7746_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
-{
-	struct ad7746_platform_data *pdata = client->dev.platform_data;
-	struct ad7746_chip_info *chip;
-	struct iio_dev *indio_dev;
-	int ret = 0;
-	unsigned char regval = 0;
-
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
-	if (!indio_dev)
-		return -ENOMEM;
-	chip = iio_priv(indio_dev);
-	/* this is only used for device removal purposes */
-	i2c_set_clientdata(client, indio_dev);
-
-	chip->client = client;
-	chip->capdac_set = -1;
-
-	/* Establish that the iio_dev is a child of the i2c device */
-	indio_dev->name = id->name;
-	indio_dev->dev.parent = &client->dev;
-	indio_dev->info = &ad7746_info;
-	indio_dev->channels = ad7746_channels;
-	if (id->driver_data == 7746)
-		indio_dev->num_channels = ARRAY_SIZE(ad7746_channels);
-	else
-		indio_dev->num_channels =  ARRAY_SIZE(ad7746_channels) - 2;
-	indio_dev->num_channels = ARRAY_SIZE(ad7746_channels);
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	if (pdata) {
-		if (pdata->exca_en) {
-			if (pdata->exca_inv_en)
-				regval |= AD7746_EXCSETUP_NEXCA;
-			else
-				regval |= AD7746_EXCSETUP_EXCA;
-		}
-
-		if (pdata->excb_en) {
-			if (pdata->excb_inv_en)
-				regval |= AD7746_EXCSETUP_NEXCB;
-			else
-				regval |= AD7746_EXCSETUP_EXCB;
-		}
-
-		regval |= AD7746_EXCSETUP_EXCLVL(pdata->exclvl);
-	} else {
-		dev_warn(&client->dev, "No platform data? using default\n");
-		regval = AD7746_EXCSETUP_EXCA | AD7746_EXCSETUP_EXCB |
-			AD7746_EXCSETUP_EXCLVL(3);
-	}
-
-	ret = i2c_smbus_write_byte_data(chip->client,
-					AD7746_REG_EXC_SETUP, regval);
-	if (ret < 0)
-		return ret;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	dev_info(&client->dev, "%s capacitive sensor registered\n", id->name);
-
-	return 0;
-}
-
-static int ad7746_remove(struct i2c_client *client)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-	iio_device_unregister(indio_dev);
-
-	return 0;
-}
-
-static const struct i2c_device_id ad7746_id[] = {
-	{ "ad7745", 7745 },
-	{ "ad7746", 7746 },
-	{ "ad7747", 7747 },
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, ad7746_id);
-
-static struct i2c_driver ad7746_driver = {
-	.driver = {
-		.name = KBUILD_MODNAME,
-	},
-	.probe = ad7746_probe,
-	.remove = ad7746_remove,
-	.id_table = ad7746_id,
-};
-module_i2c_driver(ad7746_driver);
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD7746/5/7 capacitive sensor driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/cdc/ad7746.h b/drivers/staging/iio/cdc/ad7746.h
deleted file mode 100644
index ea8572d1df02..000000000000
--- a/drivers/staging/iio/cdc/ad7746.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * AD7746 capacitive sensor driver supporting AD7745, AD7746 and AD7747
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#ifndef IIO_CDC_AD7746_H_
-#define IIO_CDC_AD7746_H_
-
-/*
- * TODO: struct ad7746_platform_data needs to go into include/linux/iio
- */
-
-#define AD7466_EXCLVL_0		0 /* +-VDD/8 */
-#define AD7466_EXCLVL_1		1 /* +-VDD/4 */
-#define AD7466_EXCLVL_2		2 /* +-VDD * 3/8 */
-#define AD7466_EXCLVL_3		3 /* +-VDD/2 */
-
-struct ad7746_platform_data {
-	unsigned char exclvl;	/*Excitation Voltage Level */
-	bool exca_en;		/* enables EXCA pin as the excitation output */
-	bool exca_inv_en;	/* enables /EXCA pin as the excitation output */
-	bool excb_en;		/* enables EXCB pin as the excitation output */
-	bool excb_inv_en;	/* enables /EXCB pin as the excitation output */
-};
-
-#endif /* IIO_CDC_AD7746_H_ */
diff --git a/drivers/staging/iio/frequency/Kconfig b/drivers/staging/iio/frequency/Kconfig
index fc726d3c64a6..72d899cbef8e 100644
--- a/drivers/staging/iio/frequency/Kconfig
+++ b/drivers/staging/iio/frequency/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Direct Digital Synthesis drivers
 #
diff --git a/drivers/staging/iio/frequency/Makefile b/drivers/staging/iio/frequency/Makefile
index e5dbcfce44f9..b8c5cf98aa5e 100644
--- a/drivers/staging/iio/frequency/Makefile
+++ b/drivers/staging/iio/frequency/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Direct Digital Synthesis drivers
 #
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index a861fe0149b1..49388da5a684 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -1,27 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * AD9832 SPI DDS driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
+#include <asm/div64.h>
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/clk.h>
 #include <linux/device.h>
+#include <linux/err.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
-#include <linux/sysfs.h>
 #include <linux/spi/spi.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-#include <linux/module.h>
-#include <asm/div64.h>
+#include <linux/sysfs.h>
+#include <linux/unaligned.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
-#include "dds.h"
 
 #include "ad9832.h"
 
+#include "dds.h"
+
+/* Registers */
+
+#define AD9832_FREQ0LL		0x0
+#define AD9832_FREQ0HL		0x1
+#define AD9832_FREQ0LM		0x2
+#define AD9832_FREQ0HM		0x3
+#define AD9832_FREQ1LL		0x4
+#define AD9832_FREQ1HL		0x5
+#define AD9832_FREQ1LM		0x6
+#define AD9832_FREQ1HM		0x7
+#define AD9832_PHASE0L		0x8
+#define AD9832_PHASE0H		0x9
+#define AD9832_PHASE1L		0xA
+#define AD9832_PHASE1H		0xB
+#define AD9832_PHASE2L		0xC
+#define AD9832_PHASE2H		0xD
+#define AD9832_PHASE3L		0xE
+#define AD9832_PHASE3H		0xF
+
+#define AD9832_PHASE_SYM	0x10
+#define AD9832_FREQ_SYM		0x11
+#define AD9832_PINCTRL_EN	0x12
+#define AD9832_OUTPUT_EN	0x13
+
+/* Command Control Bits */
+
+#define AD9832_CMD_PHA8BITSW	0x1
+#define AD9832_CMD_PHA16BITSW	0x0
+#define AD9832_CMD_FRE8BITSW	0x3
+#define AD9832_CMD_FRE16BITSW	0x2
+#define AD9832_CMD_FPSELECT	0x6
+#define AD9832_CMD_SYNCSELSRC	0x8
+#define AD9832_CMD_SLEEPRESCLR	0xC
+
+#define AD9832_FREQ		BIT(11)
+#define AD9832_PHASE_MASK	GENMASK(10, 9)
+#define AD9832_SYNC		BIT(13)
+#define AD9832_SELSRC		BIT(12)
+#define AD9832_SLEEP		BIT(13)
+#define AD9832_RESET		BIT(12)
+#define AD9832_CLR		BIT(11)
+#define AD9832_FREQ_BITS	32
+#define AD9832_PHASE_BITS	12
+#define AD9832_CMD_MSK		GENMASK(15, 12)
+#define AD9832_ADD_MSK		GENMASK(11, 8)
+#define AD9832_DAT_MSK		GENMASK(7, 0)
+
+/**
+ * struct ad9832_state - driver instance specific data
+ * @spi:		spi_device
+ * @mclk:		external master clock
+ * @ctrl_fp:		cached frequency/phase control word
+ * @ctrl_ss:		cached sync/selsrc control word
+ * @ctrl_src:		cached sleep/reset/clr word
+ * @xfer:		default spi transfer
+ * @msg:		default spi message
+ * @freq_xfer:		tuning word spi transfer
+ * @freq_msg:		tuning word spi message
+ * @phase_xfer:		tuning word spi transfer
+ * @phase_msg:		tuning word spi message
+ * @lock:		protect sensor state
+ * @data:		spi transmit buffer
+ * @phase_data:		tuning word spi transmit buffer
+ * @freq_data:		tuning word spi transmit buffer
+ */
+
+struct ad9832_state {
+	struct spi_device		*spi;
+	struct clk			*mclk;
+	unsigned short			ctrl_fp;
+	unsigned short			ctrl_ss;
+	unsigned short			ctrl_src;
+	struct spi_transfer		xfer;
+	struct spi_message		msg;
+	struct spi_transfer		freq_xfer[4];
+	struct spi_message		freq_msg;
+	struct spi_transfer		phase_xfer[2];
+	struct spi_message		phase_msg;
+	struct mutex			lock;	/* protect sensor state */
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 */
+	union {
+		__be16			freq_data[4];
+		__be16			phase_data[2];
+		__be16			data;
+	} __aligned(IIO_DMA_MINALIGN);
+};
+
 static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
 {
 	unsigned long long freqreg = (u64)fout *
@@ -31,27 +126,28 @@ static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
 }
 
 static int ad9832_write_frequency(struct ad9832_state *st,
-				  unsigned addr, unsigned long fout)
+				  unsigned int addr, unsigned long fout)
 {
+	unsigned long clk_freq;
 	unsigned long regval;
+	u8 regval_bytes[4];
+	u16 freq_cmd;
 
-	if (fout > (st->mclk / 2))
+	clk_freq = clk_get_rate(st->mclk);
+
+	if (!clk_freq || fout > (clk_freq / 2))
 		return -EINVAL;
 
-	regval = ad9832_calc_freqreg(st->mclk, fout);
-
-	st->freq_data[0] = cpu_to_be16((AD9832_CMD_FRE8BITSW << CMD_SHIFT) |
-					(addr << ADD_SHIFT) |
-					((regval >> 24) & 0xFF));
-	st->freq_data[1] = cpu_to_be16((AD9832_CMD_FRE16BITSW << CMD_SHIFT) |
-					((addr - 1) << ADD_SHIFT) |
-					((regval >> 16) & 0xFF));
-	st->freq_data[2] = cpu_to_be16((AD9832_CMD_FRE8BITSW << CMD_SHIFT) |
-					((addr - 2) << ADD_SHIFT) |
-					((regval >> 8) & 0xFF));
-	st->freq_data[3] = cpu_to_be16((AD9832_CMD_FRE16BITSW << CMD_SHIFT) |
-					((addr - 3) << ADD_SHIFT) |
-					((regval >> 0) & 0xFF));
+	regval = ad9832_calc_freqreg(clk_freq, fout);
+	put_unaligned_be32(regval, regval_bytes);
+
+	for (int i = 0; i < ARRAY_SIZE(regval_bytes); i++) {
+		freq_cmd = (i % 2 == 0) ? AD9832_CMD_FRE8BITSW : AD9832_CMD_FRE16BITSW;
+
+		st->freq_data[i] = cpu_to_be16(FIELD_PREP(AD9832_CMD_MSK, freq_cmd) |
+			FIELD_PREP(AD9832_ADD_MSK, addr - i) |
+			FIELD_PREP(AD9832_DAT_MSK, regval_bytes[i]));
+	}
 
 	return spi_sync(st->spi, &st->freq_msg);
 }
@@ -59,15 +155,21 @@ static int ad9832_write_frequency(struct ad9832_state *st,
 static int ad9832_write_phase(struct ad9832_state *st,
 			      unsigned long addr, unsigned long phase)
 {
-	if (phase > BIT(AD9832_PHASE_BITS))
+	u8 phase_bytes[2];
+	u16 phase_cmd;
+
+	if (phase >= BIT(AD9832_PHASE_BITS))
 		return -EINVAL;
 
-	st->phase_data[0] = cpu_to_be16((AD9832_CMD_PHA8BITSW << CMD_SHIFT) |
-					(addr << ADD_SHIFT) |
-					((phase >> 8) & 0xFF));
-	st->phase_data[1] = cpu_to_be16((AD9832_CMD_PHA16BITSW << CMD_SHIFT) |
-					((addr - 1) << ADD_SHIFT) |
-					(phase & 0xFF));
+	put_unaligned_be16(phase, phase_bytes);
+
+	for (int i = 0; i < ARRAY_SIZE(phase_bytes); i++) {
+		phase_cmd = (i % 2 == 0) ? AD9832_CMD_PHA8BITSW : AD9832_CMD_PHA16BITSW;
+
+		st->phase_data[i] = cpu_to_be16(FIELD_PREP(AD9832_CMD_MSK, phase_cmd) |
+			FIELD_PREP(AD9832_ADD_MSK, addr - i) |
+			FIELD_PREP(AD9832_DAT_MSK, phase_bytes[i]));
+	}
 
 	return spi_sync(st->spi, &st->phase_msg);
 }
@@ -85,7 +187,7 @@ static ssize_t ad9832_write(struct device *dev, struct device_attribute *attr,
 	if (ret)
 		goto error_ret;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->lock);
 	switch ((u32)this_attr->address) {
 	case AD9832_FREQ0HM:
 	case AD9832_FREQ1HM:
@@ -98,25 +200,23 @@ static ssize_t ad9832_write(struct device *dev, struct device_attribute *attr,
 		ret = ad9832_write_phase(st, this_attr->address, val);
 		break;
 	case AD9832_PINCTRL_EN:
-		if (val)
-			st->ctrl_ss &= ~AD9832_SELSRC;
-		else
-			st->ctrl_ss |= AD9832_SELSRC;
-		st->data = cpu_to_be16((AD9832_CMD_SYNCSELSRC << CMD_SHIFT) |
-					st->ctrl_ss);
+		st->ctrl_ss &= ~AD9832_SELSRC;
+		st->ctrl_ss |= FIELD_PREP(AD9832_SELSRC, val ? 0 : 1);
+
+		st->data = cpu_to_be16(FIELD_PREP(AD9832_CMD_MSK, AD9832_CMD_SYNCSELSRC) |
+						  st->ctrl_ss);
 		ret = spi_sync(st->spi, &st->msg);
 		break;
 	case AD9832_FREQ_SYM:
-		if (val == 1) {
-			st->ctrl_fp |= AD9832_FREQ;
-		} else if (val == 0) {
+		if (val == 1 || val == 0) {
 			st->ctrl_fp &= ~AD9832_FREQ;
+			st->ctrl_fp |= FIELD_PREP(AD9832_FREQ, val ? 1 : 0);
 		} else {
 			ret = -EINVAL;
 			break;
 		}
-		st->data = cpu_to_be16((AD9832_CMD_FPSELECT << CMD_SHIFT) |
-					st->ctrl_fp);
+		st->data = cpu_to_be16(FIELD_PREP(AD9832_CMD_MSK, AD9832_CMD_FPSELECT) |
+						  st->ctrl_fp);
 		ret = spi_sync(st->spi, &st->msg);
 		break;
 	case AD9832_PHASE_SYM:
@@ -125,53 +225,52 @@ static ssize_t ad9832_write(struct device *dev, struct device_attribute *attr,
 			break;
 		}
 
-		st->ctrl_fp &= ~AD9832_PHASE(3);
-		st->ctrl_fp |= AD9832_PHASE(val);
+		st->ctrl_fp &= ~AD9832_PHASE_MASK;
+		st->ctrl_fp |= FIELD_PREP(AD9832_PHASE_MASK, val);
 
-		st->data = cpu_to_be16((AD9832_CMD_FPSELECT << CMD_SHIFT) |
-					st->ctrl_fp);
+		st->data = cpu_to_be16(FIELD_PREP(AD9832_CMD_MSK, AD9832_CMD_FPSELECT) |
+						  st->ctrl_fp);
 		ret = spi_sync(st->spi, &st->msg);
 		break;
 	case AD9832_OUTPUT_EN:
 		if (val)
-			st->ctrl_src &= ~(AD9832_RESET | AD9832_SLEEP |
-					AD9832_CLR);
+			st->ctrl_src &= ~(AD9832_RESET | AD9832_SLEEP | AD9832_CLR);
 		else
-			st->ctrl_src |= AD9832_RESET;
+			st->ctrl_src |= FIELD_PREP(AD9832_RESET, 1);
 
-		st->data = cpu_to_be16((AD9832_CMD_SLEEPRESCLR << CMD_SHIFT) |
-					st->ctrl_src);
+		st->data = cpu_to_be16(FIELD_PREP(AD9832_CMD_MSK, AD9832_CMD_SLEEPRESCLR) |
+						  st->ctrl_src);
 		ret = spi_sync(st->spi, &st->msg);
 		break;
 	default:
 		ret = -ENODEV;
 	}
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
 
 error_ret:
 	return ret ? ret : len;
 }
 
-/**
+/*
  * see dds.h for further information
  */
 
-static IIO_DEV_ATTR_FREQ(0, 0, S_IWUSR, NULL, ad9832_write, AD9832_FREQ0HM);
-static IIO_DEV_ATTR_FREQ(0, 1, S_IWUSR, NULL, ad9832_write, AD9832_FREQ1HM);
-static IIO_DEV_ATTR_FREQSYMBOL(0, S_IWUSR, NULL, ad9832_write, AD9832_FREQ_SYM);
+static IIO_DEV_ATTR_FREQ(0, 0, 0200, NULL, ad9832_write, AD9832_FREQ0HM);
+static IIO_DEV_ATTR_FREQ(0, 1, 0200, NULL, ad9832_write, AD9832_FREQ1HM);
+static IIO_DEV_ATTR_FREQSYMBOL(0, 0200, NULL, ad9832_write, AD9832_FREQ_SYM);
 static IIO_CONST_ATTR_FREQ_SCALE(0, "1"); /* 1Hz */
 
-static IIO_DEV_ATTR_PHASE(0, 0, S_IWUSR, NULL, ad9832_write, AD9832_PHASE0H);
-static IIO_DEV_ATTR_PHASE(0, 1, S_IWUSR, NULL, ad9832_write, AD9832_PHASE1H);
-static IIO_DEV_ATTR_PHASE(0, 2, S_IWUSR, NULL, ad9832_write, AD9832_PHASE2H);
-static IIO_DEV_ATTR_PHASE(0, 3, S_IWUSR, NULL, ad9832_write, AD9832_PHASE3H);
-static IIO_DEV_ATTR_PHASESYMBOL(0, S_IWUSR, NULL,
+static IIO_DEV_ATTR_PHASE(0, 0, 0200, NULL, ad9832_write, AD9832_PHASE0H);
+static IIO_DEV_ATTR_PHASE(0, 1, 0200, NULL, ad9832_write, AD9832_PHASE1H);
+static IIO_DEV_ATTR_PHASE(0, 2, 0200, NULL, ad9832_write, AD9832_PHASE2H);
+static IIO_DEV_ATTR_PHASE(0, 3, 0200, NULL, ad9832_write, AD9832_PHASE3H);
+static IIO_DEV_ATTR_PHASESYMBOL(0, 0200, NULL,
 				ad9832_write, AD9832_PHASE_SYM);
 static IIO_CONST_ATTR_PHASE_SCALE(0, "0.0015339808"); /* 2PI/2^12 rad*/
 
-static IIO_DEV_ATTR_PINCONTROL_EN(0, S_IWUSR, NULL,
+static IIO_DEV_ATTR_PINCONTROL_EN(0, 0200, NULL,
 				ad9832_write, AD9832_PINCTRL_EN);
-static IIO_DEV_ATTR_OUT_ENABLE(0, S_IWUSR, NULL,
+static IIO_DEV_ATTR_OUT_ENABLE(0, 0200, NULL,
 				ad9832_write, AD9832_OUTPUT_EN);
 
 static struct attribute *ad9832_attributes[] = {
@@ -196,15 +295,13 @@ static const struct attribute_group ad9832_attribute_group = {
 
 static const struct iio_info ad9832_info = {
 	.attrs = &ad9832_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad9832_probe(struct spi_device *spi)
 {
-	struct ad9832_platform_data *pdata = spi->dev.platform_data;
+	struct ad9832_platform_data *pdata = dev_get_platdata(&spi->dev);
 	struct iio_dev *indio_dev;
 	struct ad9832_state *st;
-	struct regulator *reg;
 	int ret;
 
 	if (!pdata) {
@@ -212,25 +309,27 @@ static int ad9832_probe(struct spi_device *spi)
 		return -ENODEV;
 	}
 
-	reg = devm_regulator_get(&spi->dev, "vcc");
-	if (!IS_ERR(reg)) {
-		ret = regulator_enable(reg);
-		if (ret)
-			return ret;
-	}
-
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev) {
-		ret = -ENOMEM;
-		goto error_disable_reg;
-	}
-	spi_set_drvdata(spi, indio_dev);
+	if (!indio_dev)
+		return -ENOMEM;
+
 	st = iio_priv(indio_dev);
-	st->reg = reg;
-	st->mclk = pdata->mclk;
+
+	ret = devm_regulator_get_enable(&spi->dev, "avdd");
+	if (ret)
+		return dev_err_probe(&spi->dev, ret, "failed to enable specified AVDD voltage\n");
+
+	ret = devm_regulator_get_enable(&spi->dev, "dvdd");
+	if (ret)
+		return dev_err_probe(&spi->dev, ret, "Failed to enable specified DVDD supply\n");
+
+	st->mclk = devm_clk_get_enabled(&spi->dev, "mclk");
+	if (IS_ERR(st->mclk))
+		return PTR_ERR(st->mclk);
+
 	st->spi = spi;
+	mutex_init(&st->lock);
 
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad9832_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
@@ -272,81 +371,65 @@ static int ad9832_probe(struct spi_device *spi)
 	spi_message_add_tail(&st->phase_xfer[1], &st->phase_msg);
 
 	st->ctrl_src = AD9832_SLEEP | AD9832_RESET | AD9832_CLR;
-	st->data = cpu_to_be16((AD9832_CMD_SLEEPRESCLR << CMD_SHIFT) |
-					st->ctrl_src);
+	st->data = cpu_to_be16(FIELD_PREP(AD9832_CMD_MSK, AD9832_CMD_SLEEPRESCLR) |
+					  st->ctrl_src);
 	ret = spi_sync(st->spi, &st->msg);
 	if (ret) {
 		dev_err(&spi->dev, "device init failed\n");
-		goto error_disable_reg;
+		return ret;
 	}
 
 	ret = ad9832_write_frequency(st, AD9832_FREQ0HM, pdata->freq0);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
 	ret = ad9832_write_frequency(st, AD9832_FREQ1HM, pdata->freq1);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE0H, pdata->phase0);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE1H, pdata->phase1);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE2H, pdata->phase2);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE3H, pdata->phase3);
 	if (ret)
-		goto error_disable_reg;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_disable_reg;
-
-	return 0;
-
-error_disable_reg:
-	if (!IS_ERR(reg))
-		regulator_disable(reg);
+		return ret;
 
-	return ret;
+	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
-static int ad9832_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct ad9832_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return 0;
-}
+static const struct of_device_id ad9832_of_match[] = {
+	{ .compatible = "adi,ad9832" },
+	{ .compatible = "adi,ad9835" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ad9832_of_match);
 
 static const struct spi_device_id ad9832_id[] = {
 	{"ad9832", 0},
 	{"ad9835", 0},
-	{}
+	{ }
 };
 MODULE_DEVICE_TABLE(spi, ad9832_id);
 
 static struct spi_driver ad9832_driver = {
 	.driver = {
 		.name	= "ad9832",
-		.owner	= THIS_MODULE,
+		.of_match_table = ad9832_of_match,
 	},
 	.probe		= ad9832_probe,
-	.remove		= ad9832_remove,
 	.id_table	= ad9832_id,
 };
 module_spi_driver(ad9832_driver);
 
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
 MODULE_DESCRIPTION("Analog Devices AD9832/AD9835 DDS");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/frequency/ad9832.h b/drivers/staging/iio/frequency/ad9832.h
index d32323b46be6..d0d840edb8d2 100644
--- a/drivers/staging/iio/frequency/ad9832.h
+++ b/drivers/staging/iio/frequency/ad9832.h
@@ -1,110 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * AD9832 SPI DDS driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 #ifndef IIO_DDS_AD9832_H_
 #define IIO_DDS_AD9832_H_
 
-/* Registers */
-
-#define AD9832_FREQ0LL		0x0
-#define AD9832_FREQ0HL		0x1
-#define AD9832_FREQ0LM		0x2
-#define AD9832_FREQ0HM		0x3
-#define AD9832_FREQ1LL		0x4
-#define AD9832_FREQ1HL		0x5
-#define AD9832_FREQ1LM		0x6
-#define AD9832_FREQ1HM		0x7
-#define AD9832_PHASE0L		0x8
-#define AD9832_PHASE0H		0x9
-#define AD9832_PHASE1L		0xA
-#define AD9832_PHASE1H		0xB
-#define AD9832_PHASE2L		0xC
-#define AD9832_PHASE2H		0xD
-#define AD9832_PHASE3L		0xE
-#define AD9832_PHASE3H		0xF
-
-#define AD9832_PHASE_SYM	0x10
-#define AD9832_FREQ_SYM		0x11
-#define AD9832_PINCTRL_EN	0x12
-#define AD9832_OUTPUT_EN	0x13
-
-/* Command Control Bits */
-
-#define AD9832_CMD_PHA8BITSW	0x1
-#define AD9832_CMD_PHA16BITSW	0x0
-#define AD9832_CMD_FRE8BITSW	0x3
-#define AD9832_CMD_FRE16BITSW	0x2
-#define AD9832_CMD_FPSELECT	0x6
-#define AD9832_CMD_SYNCSELSRC	0x8
-#define AD9832_CMD_SLEEPRESCLR	0xC
-
-#define AD9832_FREQ		BIT(11)
-#define AD9832_PHASE(x)		(((x) & 3) << 9)
-#define AD9832_SYNC		BIT(13)
-#define AD9832_SELSRC		BIT(12)
-#define AD9832_SLEEP		BIT(13)
-#define AD9832_RESET		BIT(12)
-#define AD9832_CLR		BIT(11)
-#define CMD_SHIFT		12
-#define ADD_SHIFT		8
-#define AD9832_FREQ_BITS	32
-#define AD9832_PHASE_BITS	12
-#define RES_MASK(bits)		((1 << (bits)) - 1)
-
-/**
- * struct ad9832_state - driver instance specific data
- * @spi:		spi_device
- * @reg:		supply regulator
- * @mclk:		external master clock
- * @ctrl_fp:		cached frequency/phase control word
- * @ctrl_ss:		cached sync/selsrc control word
- * @ctrl_src:		cached sleep/reset/clr word
- * @xfer:		default spi transfer
- * @msg:		default spi message
- * @freq_xfer:		tuning word spi transfer
- * @freq_msg:		tuning word spi message
- * @phase_xfer:		tuning word spi transfer
- * @phase_msg:		tuning word spi message
- * @data:		spi transmit buffer
- * @phase_data:		tuning word spi transmit buffer
- * @freq_data:		tuning word spi transmit buffer
- */
-
-struct ad9832_state {
-	struct spi_device		*spi;
-	struct regulator		*reg;
-	unsigned long			mclk;
-	unsigned short			ctrl_fp;
-	unsigned short			ctrl_ss;
-	unsigned short			ctrl_src;
-	struct spi_transfer		xfer;
-	struct spi_message		msg;
-	struct spi_transfer		freq_xfer[4];
-	struct spi_message		freq_msg;
-	struct spi_transfer		phase_xfer[2];
-	struct spi_message		phase_msg;
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-	union {
-		__be16			freq_data[4]____cacheline_aligned;
-		__be16			phase_data[2];
-		__be16			data;
-	};
-};
-
 /*
  * TODO: struct ad9832_platform_data needs to go into include/linux/iio
  */
 
 /**
  * struct ad9832_platform_data - platform specific information
- * @mclk:		master clock in Hz
  * @freq0:		power up freq0 tuning word in Hz
  * @freq1:		power up freq1 tuning word in Hz
  * @phase0:		power up phase0 value [0..4095] correlates with 0..2PI
@@ -114,7 +22,6 @@ struct ad9832_state {
  */
 
 struct ad9832_platform_data {
-	unsigned long		mclk;
 	unsigned long		freq0;
 	unsigned long		freq1;
 	unsigned short		phase0;
diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
index d02bb44fb8fc..d339d5e8e043 100644
--- a/drivers/staging/iio/frequency/ad9834.c
+++ b/drivers/staging/iio/frequency/ad9834.c
@@ -1,11 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * AD9833/AD9834/AD9837/AD9838 SPI DDS driver
  *
  * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
+#include <linux/clk.h>
 #include <linux/interrupt.h>
 #include <linux/workqueue.h>
 #include <linux/device.h>
@@ -21,9 +21,81 @@
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
+
 #include "dds.h"
 
-#include "ad9834.h"
+/* Registers */
+
+#define AD9834_REG_CMD		0
+#define AD9834_REG_FREQ0	BIT(14)
+#define AD9834_REG_FREQ1	BIT(15)
+#define AD9834_REG_PHASE0	(BIT(15) | BIT(14))
+#define AD9834_REG_PHASE1	(BIT(15) | BIT(14) | BIT(13))
+
+/* Command Control Bits */
+
+#define AD9834_B28		BIT(13)
+#define AD9834_HLB		BIT(12)
+#define AD9834_FSEL		BIT(11)
+#define AD9834_PSEL		BIT(10)
+#define AD9834_PIN_SW		BIT(9)
+#define AD9834_RESET		BIT(8)
+#define AD9834_SLEEP1		BIT(7)
+#define AD9834_SLEEP12		BIT(6)
+#define AD9834_OPBITEN		BIT(5)
+#define AD9834_SIGN_PIB		BIT(4)
+#define AD9834_DIV2		BIT(3)
+#define AD9834_MODE		BIT(1)
+
+#define AD9834_FREQ_BITS	28
+#define AD9834_PHASE_BITS	12
+
+#define RES_MASK(bits)	(BIT(bits) - 1)
+
+/**
+ * struct ad9834_state - driver instance specific data
+ * @spi:		spi_device
+ * @mclk:		external master clock
+ * @control:		cached control word
+ * @devid:		device id
+ * @xfer:		default spi transfer
+ * @msg:		default spi message
+ * @freq_xfer:		tuning word spi transfer
+ * @freq_msg:		tuning word spi message
+ * @lock:		protect sensor state
+ * @data:		spi transmit buffer
+ * @freq_data:		tuning word spi transmit buffer
+ */
+
+struct ad9834_state {
+	struct spi_device		*spi;
+	struct clk			*mclk;
+	unsigned short			control;
+	unsigned short			devid;
+	struct spi_transfer		xfer;
+	struct spi_message		msg;
+	struct spi_transfer		freq_xfer[2];
+	struct spi_message		freq_msg;
+	struct mutex                    lock;   /* protect sensor state */
+
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 */
+	__be16				data __aligned(IIO_DMA_MINALIGN);
+	__be16				freq_data[2];
+};
+
+/*
+ * ad9834_supported_device_ids:
+ */
+
+enum ad9834_supported_device_ids {
+	ID_AD9833,
+	ID_AD9834,
+	ID_AD9837,
+	ID_AD9838,
+};
 
 static unsigned int ad9834_calc_freqreg(unsigned long mclk, unsigned long fout)
 {
@@ -36,12 +108,15 @@ static unsigned int ad9834_calc_freqreg(unsigned long mclk, unsigned long fout)
 static int ad9834_write_frequency(struct ad9834_state *st,
 				  unsigned long addr, unsigned long fout)
 {
+	unsigned long clk_freq;
 	unsigned long regval;
 
-	if (fout > (st->mclk / 2))
+	clk_freq = clk_get_rate(st->mclk);
+
+	if (!clk_freq || fout > (clk_freq / 2))
 		return -EINVAL;
 
-	regval = ad9834_calc_freqreg(st->mclk, fout);
+	regval = ad9834_calc_freqreg(clk_freq, fout);
 
 	st->freq_data[0] = cpu_to_be16(addr | (regval &
 				       RES_MASK(AD9834_FREQ_BITS / 2)));
@@ -55,7 +130,7 @@ static int ad9834_write_frequency(struct ad9834_state *st,
 static int ad9834_write_phase(struct ad9834_state *st,
 			      unsigned long addr, unsigned long phase)
 {
-	if (phase > BIT(AD9834_PHASE_BITS))
+	if (phase >= BIT(AD9834_PHASE_BITS))
 		return -EINVAL;
 	st->data = cpu_to_be16(addr | phase);
 
@@ -75,9 +150,9 @@ static ssize_t ad9834_write(struct device *dev,
 
 	ret = kstrtoul(buf, 10, &val);
 	if (ret)
-		goto error_ret;
+		return ret;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->lock);
 	switch ((u32)this_attr->address) {
 	case AD9834_REG_FREQ0:
 	case AD9834_REG_FREQ1:
@@ -111,7 +186,7 @@ static ssize_t ad9834_write(struct device *dev,
 		break;
 	case AD9834_FSEL:
 	case AD9834_PSEL:
-		if (val == 0) {
+		if (!val) {
 			st->control &= ~(this_attr->address | AD9834_PIN_SW);
 		} else if (val == 1) {
 			st->control |= this_attr->address;
@@ -135,9 +210,8 @@ static ssize_t ad9834_write(struct device *dev,
 	default:
 		ret = -ENODEV;
 	}
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
 
-error_ret:
 	return ret ? ret : len;
 }
 
@@ -152,7 +226,7 @@ static ssize_t ad9834_store_wavetype(struct device *dev,
 	int ret = 0;
 	bool is_ad9833_7 = (st->devid == ID_AD9833) || (st->devid == ID_AD9837);
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->lock);
 
 	switch ((u32)this_attr->address) {
 	case 0:
@@ -195,7 +269,7 @@ static ssize_t ad9834_store_wavetype(struct device *dev,
 		st->data = cpu_to_be16(AD9834_REG_CMD | st->control);
 		ret = spi_sync(st->spi, &st->msg);
 	}
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
 
 	return ret ? ret : len;
 }
@@ -209,7 +283,7 @@ ssize_t ad9834_show_out0_wavetype_available(struct device *dev,
 	struct ad9834_state *st = iio_priv(indio_dev);
 	char *str;
 
-	if ((st->devid == ID_AD9833) || (st->devid == ID_AD9837))
+	if (st->devid == ID_AD9833 || st->devid == ID_AD9837)
 		str = "sine triangle square";
 	else if (st->control & AD9834_OPBITEN)
 		str = "sine";
@@ -219,7 +293,7 @@ ssize_t ad9834_show_out0_wavetype_available(struct device *dev,
 	return sprintf(buf, "%s\n", str);
 }
 
-static IIO_DEVICE_ATTR(out_altvoltage0_out0_wavetype_available, S_IRUGO,
+static IIO_DEVICE_ATTR(out_altvoltage0_out0_wavetype_available, 0444,
 		       ad9834_show_out0_wavetype_available, NULL, 0);
 
 static
@@ -239,28 +313,26 @@ ssize_t ad9834_show_out1_wavetype_available(struct device *dev,
 	return sprintf(buf, "%s\n", str);
 }
 
-static IIO_DEVICE_ATTR(out_altvoltage0_out1_wavetype_available, S_IRUGO,
+static IIO_DEVICE_ATTR(out_altvoltage0_out1_wavetype_available, 0444,
 		       ad9834_show_out1_wavetype_available, NULL, 0);
 
-/**
+/*
  * see dds.h for further information
  */
 
-static IIO_DEV_ATTR_FREQ(0, 0, S_IWUSR, NULL, ad9834_write, AD9834_REG_FREQ0);
-static IIO_DEV_ATTR_FREQ(0, 1, S_IWUSR, NULL, ad9834_write, AD9834_REG_FREQ1);
-static IIO_DEV_ATTR_FREQSYMBOL(0, S_IWUSR, NULL, ad9834_write, AD9834_FSEL);
+static IIO_DEV_ATTR_FREQ(0, 0, 0200, NULL, ad9834_write, AD9834_REG_FREQ0);
+static IIO_DEV_ATTR_FREQ(0, 1, 0200, NULL, ad9834_write, AD9834_REG_FREQ1);
+static IIO_DEV_ATTR_FREQSYMBOL(0, 0200, NULL, ad9834_write, AD9834_FSEL);
 static IIO_CONST_ATTR_FREQ_SCALE(0, "1"); /* 1Hz */
 
-static IIO_DEV_ATTR_PHASE(0, 0, S_IWUSR, NULL, ad9834_write, AD9834_REG_PHASE0);
-static IIO_DEV_ATTR_PHASE(0, 1, S_IWUSR, NULL, ad9834_write, AD9834_REG_PHASE1);
-static IIO_DEV_ATTR_PHASESYMBOL(0, S_IWUSR, NULL, ad9834_write, AD9834_PSEL);
+static IIO_DEV_ATTR_PHASE(0, 0, 0200, NULL, ad9834_write, AD9834_REG_PHASE0);
+static IIO_DEV_ATTR_PHASE(0, 1, 0200, NULL, ad9834_write, AD9834_REG_PHASE1);
+static IIO_DEV_ATTR_PHASESYMBOL(0, 0200, NULL, ad9834_write, AD9834_PSEL);
 static IIO_CONST_ATTR_PHASE_SCALE(0, "0.0015339808"); /* 2PI/2^12 rad*/
 
-static IIO_DEV_ATTR_PINCONTROL_EN(0, S_IWUSR, NULL,
-	ad9834_write, AD9834_PIN_SW);
-static IIO_DEV_ATTR_OUT_ENABLE(0, S_IWUSR, NULL, ad9834_write, AD9834_RESET);
-static IIO_DEV_ATTR_OUTY_ENABLE(0, 1, S_IWUSR, NULL,
-	ad9834_write, AD9834_OPBITEN);
+static IIO_DEV_ATTR_PINCONTROL_EN(0, 0200, NULL, ad9834_write, AD9834_PIN_SW);
+static IIO_DEV_ATTR_OUT_ENABLE(0, 0200, NULL, ad9834_write, AD9834_RESET);
+static IIO_DEV_ATTR_OUTY_ENABLE(0, 1, 0200, NULL, ad9834_write, AD9834_OPBITEN);
 static IIO_DEV_ATTR_OUT_WAVETYPE(0, 0, ad9834_store_wavetype, 0);
 static IIO_DEV_ATTR_OUT_WAVETYPE(0, 1, ad9834_store_wavetype, 1);
 
@@ -308,46 +380,37 @@ static const struct attribute_group ad9833_attribute_group = {
 
 static const struct iio_info ad9834_info = {
 	.attrs = &ad9834_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ad9833_info = {
 	.attrs = &ad9833_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad9834_probe(struct spi_device *spi)
 {
-	struct ad9834_platform_data *pdata = spi->dev.platform_data;
 	struct ad9834_state *st;
 	struct iio_dev *indio_dev;
-	struct regulator *reg;
 	int ret;
 
-	if (!pdata) {
-		dev_dbg(&spi->dev, "no platform data?\n");
-		return -ENODEV;
-	}
-
-	reg = devm_regulator_get(&spi->dev, "vcc");
-	if (!IS_ERR(reg)) {
-		ret = regulator_enable(reg);
-		if (ret)
-			return ret;
-	}
+	ret = devm_regulator_get_enable(&spi->dev, "avdd");
+	if (ret)
+		return dev_err_probe(&spi->dev, ret, "Failed to enable specified AVDD supply\n");
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (!indio_dev) {
 		ret = -ENOMEM;
-		goto error_disable_reg;
+		return ret;
 	}
-	spi_set_drvdata(spi, indio_dev);
 	st = iio_priv(indio_dev);
-	st->mclk = pdata->mclk;
+	mutex_init(&st->lock);
+	st->mclk = devm_clk_get_enabled(&spi->dev, NULL);
+	if (IS_ERR(st->mclk)) {
+		dev_err(&spi->dev, "Failed to enable master clock\n");
+		return PTR_ERR(st->mclk);
+	}
+
 	st->spi = spi;
 	st->devid = spi_get_device_id(spi)->driver_data;
-	st->reg = reg;
-	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	switch (st->devid) {
 	case ID_AD9833:
@@ -379,59 +442,35 @@ static int ad9834_probe(struct spi_device *spi)
 	spi_message_add_tail(&st->freq_xfer[1], &st->freq_msg);
 
 	st->control = AD9834_B28 | AD9834_RESET;
+	st->control |= AD9834_DIV2;
 
-	if (!pdata->en_div2)
-		st->control |= AD9834_DIV2;
-
-	if (!pdata->en_signbit_msb_out && (st->devid == ID_AD9834))
+	if (st->devid == ID_AD9834)
 		st->control |= AD9834_SIGN_PIB;
 
 	st->data = cpu_to_be16(AD9834_REG_CMD | st->control);
 	ret = spi_sync(st->spi, &st->msg);
 	if (ret) {
 		dev_err(&spi->dev, "device init failed\n");
-		goto error_disable_reg;
+		return ret;
 	}
 
-	ret = ad9834_write_frequency(st, AD9834_REG_FREQ0, pdata->freq0);
+	ret = ad9834_write_frequency(st, AD9834_REG_FREQ0, 1000000);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
-	ret = ad9834_write_frequency(st, AD9834_REG_FREQ1, pdata->freq1);
+	ret = ad9834_write_frequency(st, AD9834_REG_FREQ1, 5000000);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
-	ret = ad9834_write_phase(st, AD9834_REG_PHASE0, pdata->phase0);
+	ret = ad9834_write_phase(st, AD9834_REG_PHASE0, 512);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
-	ret = ad9834_write_phase(st, AD9834_REG_PHASE1, pdata->phase1);
+	ret = ad9834_write_phase(st, AD9834_REG_PHASE1, 1024);
 	if (ret)
-		goto error_disable_reg;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_disable_reg;
-
-	return 0;
+		return ret;
 
-error_disable_reg:
-	if (!IS_ERR(reg))
-		regulator_disable(reg);
-
-	return ret;
-}
-
-static int ad9834_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct ad9834_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return 0;
+	return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
 static const struct spi_device_id ad9834_id[] = {
@@ -439,21 +478,30 @@ static const struct spi_device_id ad9834_id[] = {
 	{"ad9834", ID_AD9834},
 	{"ad9837", ID_AD9837},
 	{"ad9838", ID_AD9838},
-	{}
+	{ }
 };
 MODULE_DEVICE_TABLE(spi, ad9834_id);
 
+static const struct of_device_id ad9834_of_match[] = {
+	{.compatible = "adi,ad9833"},
+	{.compatible = "adi,ad9834"},
+	{.compatible = "adi,ad9837"},
+	{.compatible = "adi,ad9838"},
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, ad9834_of_match);
+
 static struct spi_driver ad9834_driver = {
 	.driver = {
 		.name	= "ad9834",
-		.owner	= THIS_MODULE,
+		.of_match_table = ad9834_of_match
 	},
 	.probe		= ad9834_probe,
-	.remove		= ad9834_remove,
 	.id_table	= ad9834_id,
 };
 module_spi_driver(ad9834_driver);
 
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
 MODULE_DESCRIPTION("Analog Devices AD9833/AD9834/AD9837/AD9838 DDS");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/frequency/ad9834.h b/drivers/staging/iio/frequency/ad9834.h
deleted file mode 100644
index 40fdd5da7bd0..000000000000
--- a/drivers/staging/iio/frequency/ad9834.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * AD9833/AD9834/AD9837/AD9838 SPI DDS driver
- *
- * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-#ifndef IIO_DDS_AD9834_H_
-#define IIO_DDS_AD9834_H_
-
-/* Registers */
-
-#define AD9834_REG_CMD		0
-#define AD9834_REG_FREQ0	BIT(14)
-#define AD9834_REG_FREQ1	BIT(15)
-#define AD9834_REG_PHASE0	(BIT(15) | BIT(14))
-#define AD9834_REG_PHASE1	(BIT(15) | BIT(14) | BIT(13))
-
-/* Command Control Bits */
-
-#define AD9834_B28		BIT(13)
-#define AD9834_HLB		BIT(12)
-#define AD9834_FSEL		BIT(11)
-#define AD9834_PSEL		BIT(10)
-#define AD9834_PIN_SW		BIT(9)
-#define AD9834_RESET		BIT(8)
-#define AD9834_SLEEP1		BIT(7)
-#define AD9834_SLEEP12		BIT(6)
-#define AD9834_OPBITEN		BIT(5)
-#define AD9834_SIGN_PIB		BIT(4)
-#define AD9834_DIV2		BIT(3)
-#define AD9834_MODE		BIT(1)
-
-#define AD9834_FREQ_BITS	28
-#define AD9834_PHASE_BITS	12
-
-#define RES_MASK(bits)	(BIT(bits) - 1)
-
-/**
- * struct ad9834_state - driver instance specific data
- * @spi:		spi_device
- * @reg:		supply regulator
- * @mclk:		external master clock
- * @control:		cached control word
- * @xfer:		default spi transfer
- * @msg:		default spi message
- * @freq_xfer:		tuning word spi transfer
- * @freq_msg:		tuning word spi message
- * @data:		spi transmit buffer
- * @freq_data:		tuning word spi transmit buffer
- */
-
-struct ad9834_state {
-	struct spi_device		*spi;
-	struct regulator		*reg;
-	unsigned int			mclk;
-	unsigned short			control;
-	unsigned short			devid;
-	struct spi_transfer		xfer;
-	struct spi_message		msg;
-	struct spi_transfer		freq_xfer[2];
-	struct spi_message		freq_msg;
-
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-	__be16				data ____cacheline_aligned;
-	__be16				freq_data[2];
-};
-
-/*
- * TODO: struct ad7887_platform_data needs to go into include/linux/iio
- */
-
-/**
- * struct ad9834_platform_data - platform specific information
- * @mclk:		master clock in Hz
- * @freq0:		power up freq0 tuning word in Hz
- * @freq1:		power up freq1 tuning word in Hz
- * @phase0:		power up phase0 value [0..4095] correlates with 0..2PI
- * @phase1:		power up phase1 value [0..4095] correlates with 0..2PI
- * @en_div2:		digital output/2 is passed to the SIGN BIT OUT pin
- * @en_signbit_msb_out:	the MSB (or MSB/2) of the DAC data is connected to the
- *			SIGN BIT OUT pin. en_div2 controls whether it is the MSB
- *			or MSB/2 that is output. if en_signbit_msb_out=false,
- *			the on-board comparator is connected to SIGN BIT OUT
- */
-
-struct ad9834_platform_data {
-	unsigned int		mclk;
-	unsigned int		freq0;
-	unsigned int		freq1;
-	unsigned short		phase0;
-	unsigned short		phase1;
-	bool			en_div2;
-	bool			en_signbit_msb_out;
-};
-
-/**
- * ad9834_supported_device_ids:
- */
-
-enum ad9834_supported_device_ids {
-	ID_AD9833,
-	ID_AD9834,
-	ID_AD9837,
-	ID_AD9838,
-};
-
-#endif /* IIO_DDS_AD9834_H_ */
diff --git a/drivers/staging/iio/frequency/dds.h b/drivers/staging/iio/frequency/dds.h
index fe53e7324c94..2ebe68eb7398 100644
--- a/drivers/staging/iio/frequency/dds.h
+++ b/drivers/staging/iio/frequency/dds.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * dds.h - sysfs attributes associated with DDS devices
  *
  * Copyright (c) 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
  */
 #ifndef IIO_DDS_H_
 #define IIO_DDS_H_
@@ -101,7 +100,7 @@
 
 #define IIO_DEV_ATTR_OUT_WAVETYPE(_channel, _output, _store, _addr)	\
 	IIO_DEVICE_ATTR(out_altvoltage##_channel##_out##_output##_wavetype,\
-			S_IWUSR, NULL, _store, _addr)
+			0200, NULL, _store, _addr)
 
 /**
  * /sys/bus/iio/devices/.../out_altvoltageX_outY_wavetype_available
diff --git a/drivers/staging/iio/gyro/Kconfig b/drivers/staging/iio/gyro/Kconfig
deleted file mode 100644
index f62f68fd6f3f..000000000000
--- a/drivers/staging/iio/gyro/Kconfig
+++ /dev/null
@@ -1,16 +0,0 @@
-#
-# IIO Digital Gyroscope Sensor drivers configuration
-#
-menu "Digital gyroscope sensors"
-
-config ADIS16060
-	tristate "Analog Devices ADIS16060 Yaw Rate Gyroscope with SPI driver"
-	depends on SPI
-	help
-	  Say Y (yes) here to build support for Analog Devices adis16060 wide bandwidth
-	  yaw rate gyroscope with SPI.
-
-	  To compile this driver as a module, say M here: the module will be
-	  called adis16060. If unsure, say N.
-
-endmenu
diff --git a/drivers/staging/iio/gyro/Makefile b/drivers/staging/iio/gyro/Makefile
deleted file mode 100644
index cf22d6d55e27..000000000000
--- a/drivers/staging/iio/gyro/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-#
-# Makefile for digital gyroscope sensor drivers
-#
-
-adis16060-y             := adis16060_core.o
-obj-$(CONFIG_ADIS16060) += adis16060.o
diff --git a/drivers/staging/iio/gyro/adis16060_core.c b/drivers/staging/iio/gyro/adis16060_core.c
deleted file mode 100644
index 4c5869dd8223..000000000000
--- a/drivers/staging/iio/gyro/adis16060_core.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * ADIS16060 Wide Bandwidth Yaw Rate Gyroscope with SPI driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-#define ADIS16060_GYRO		0x20 /* Measure Angular Rate (Gyro) */
-#define ADIS16060_TEMP_OUT	0x10 /* Measure Temperature */
-#define ADIS16060_AIN2		0x80 /* Measure AIN2 */
-#define ADIS16060_AIN1		0x40 /* Measure AIN1 */
-
-/**
- * struct adis16060_state - device instance specific data
- * @us_w:		actual spi_device to write config
- * @us_r:		actual spi_device to read back data
- * @buf:		transmit or receive buffer
- * @buf_lock:		mutex to protect tx and rx
- **/
-struct adis16060_state {
-	struct spi_device		*us_w;
-	struct spi_device		*us_r;
-	struct mutex			buf_lock;
-
-	u8 buf[3] ____cacheline_aligned;
-};
-
-static struct iio_dev *adis16060_iio_dev;
-
-static int adis16060_spi_write(struct iio_dev *indio_dev, u8 val)
-{
-	int ret;
-	struct adis16060_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->buf[2] = val; /* The last 8 bits clocked in are latched */
-	ret = spi_write(st->us_w, st->buf, 3);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int adis16060_spi_read(struct iio_dev *indio_dev, u16 *val)
-{
-	int ret;
-	struct adis16060_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-
-	ret = spi_read(st->us_r, st->buf, 3);
-
-	/* The internal successive approximation ADC begins the
-	 * conversion process on the falling edge of MSEL1 and
-	 * starts to place data MSB first on the DOUT line at
-	 * the 6th falling edge of SCLK
-	 */
-	if (ret == 0)
-		*val = ((st->buf[0] & 0x3) << 12) |
-			(st->buf[1] << 4) |
-			((st->buf[2] >> 4) & 0xF);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int adis16060_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val, int *val2,
-			      long mask)
-{
-	u16 tval = 0;
-	int ret;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		/* Take the iio_dev status lock */
-		mutex_lock(&indio_dev->mlock);
-		ret = adis16060_spi_write(indio_dev, chan->address);
-		if (ret < 0) {
-			mutex_unlock(&indio_dev->mlock);
-			return ret;
-		}
-		ret = adis16060_spi_read(indio_dev, &tval);
-		mutex_unlock(&indio_dev->mlock);
-		*val = tval;
-		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_OFFSET:
-		*val = -7;
-		*val2 = 461117;
-		return IIO_VAL_INT_PLUS_MICRO;
-	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = 34000;
-		return IIO_VAL_INT_PLUS_MICRO;
-	}
-
-	return -EINVAL;
-}
-
-static const struct iio_info adis16060_info = {
-	.read_raw = &adis16060_read_raw,
-	.driver_module = THIS_MODULE,
-};
-
-static const struct iio_chan_spec adis16060_channels[] = {
-	{
-		.type = IIO_ANGL_VEL,
-		.modified = 1,
-		.channel2 = IIO_MOD_Z,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.address = ADIS16060_GYRO,
-	}, {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.address = ADIS16060_AIN1,
-	}, {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 1,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.address = ADIS16060_AIN2,
-	}, {
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE),
-		.address = ADIS16060_TEMP_OUT,
-	}
-};
-
-static int adis16060_r_probe(struct spi_device *spi)
-{
-	int ret;
-	struct adis16060_state *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-	st = iio_priv(indio_dev);
-	st->us_r = spi;
-	mutex_init(&st->buf_lock);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &adis16060_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = adis16060_channels;
-	indio_dev->num_channels = ARRAY_SIZE(adis16060_channels);
-
-	ret = devm_iio_device_register(&spi->dev, indio_dev);
-	if (ret)
-		return ret;
-
-	adis16060_iio_dev = indio_dev;
-	return 0;
-}
-
-static int adis16060_w_probe(struct spi_device *spi)
-{
-	int ret;
-	struct iio_dev *indio_dev = adis16060_iio_dev;
-	struct adis16060_state *st;
-
-	if (!indio_dev) {
-		ret =  -ENODEV;
-		goto error_ret;
-	}
-	st = iio_priv(indio_dev);
-	spi_set_drvdata(spi, indio_dev);
-	st->us_w = spi;
-	return 0;
-
-error_ret:
-	return ret;
-}
-
-static int adis16060_w_remove(struct spi_device *spi)
-{
-	return 0;
-}
-
-static struct spi_driver adis16060_r_driver = {
-	.driver = {
-		.name = "adis16060_r",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16060_r_probe,
-};
-
-static struct spi_driver adis16060_w_driver = {
-	.driver = {
-		.name = "adis16060_w",
-		.owner = THIS_MODULE,
-	},
-	.probe = adis16060_w_probe,
-	.remove = adis16060_w_remove,
-};
-
-static __init int adis16060_init(void)
-{
-	int ret;
-
-	ret = spi_register_driver(&adis16060_r_driver);
-	if (ret < 0)
-		return ret;
-
-	ret = spi_register_driver(&adis16060_w_driver);
-	if (ret < 0) {
-		spi_unregister_driver(&adis16060_r_driver);
-		return ret;
-	}
-
-	return 0;
-}
-module_init(adis16060_init);
-
-static __exit void adis16060_exit(void)
-{
-	spi_unregister_driver(&adis16060_w_driver);
-	spi_unregister_driver(&adis16060_r_driver);
-}
-module_exit(adis16060_exit);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16060 Yaw Rate Gyroscope Driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/iio_dummy_evgen.c b/drivers/staging/iio/iio_dummy_evgen.c
deleted file mode 100644
index 6d38854c38c8..000000000000
--- a/drivers/staging/iio/iio_dummy_evgen.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/**
- * Copyright (c) 2011 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * Companion module to the iio simple dummy example driver.
- * The purpose of this is to generate 'fake' event interrupts thus
- * allowing that driver's code to be as close as possible to that of
- * a normal driver talking to hardware.  The approach used here
- * is not intended to be general and just happens to work for this
- * particular use case.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/mutex.h>
-#include <linux/module.h>
-#include <linux/sysfs.h>
-
-#include "iio_dummy_evgen.h"
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-/* Fiddly bit of faking and irq without hardware */
-#define IIO_EVENTGEN_NO 10
-/**
- * struct iio_dummy_evgen - evgen state
- * @chip: irq chip we are faking
- * @base: base of irq range
- * @enabled: mask of which irqs are enabled
- * @inuse: mask of which irqs are connected
- * @regs: irq regs we are faking
- * @lock: protect the evgen state
- */
-struct iio_dummy_eventgen {
-	struct irq_chip chip;
-	int base;
-	bool enabled[IIO_EVENTGEN_NO];
-	bool inuse[IIO_EVENTGEN_NO];
-	struct iio_dummy_regs regs[IIO_EVENTGEN_NO];
-	struct mutex lock;
-};
-
-/* We can only ever have one instance of this 'device' */
-static struct iio_dummy_eventgen *iio_evgen;
-static const char *iio_evgen_name = "iio_dummy_evgen";
-
-static void iio_dummy_event_irqmask(struct irq_data *d)
-{
-	struct irq_chip *chip = irq_data_get_irq_chip(d);
-	struct iio_dummy_eventgen *evgen =
-		container_of(chip, struct iio_dummy_eventgen, chip);
-
-	evgen->enabled[d->irq - evgen->base] = false;
-}
-
-static void iio_dummy_event_irqunmask(struct irq_data *d)
-{
-	struct irq_chip *chip = irq_data_get_irq_chip(d);
-	struct iio_dummy_eventgen *evgen =
-		container_of(chip, struct iio_dummy_eventgen, chip);
-
-	evgen->enabled[d->irq - evgen->base] = true;
-}
-
-static int iio_dummy_evgen_create(void)
-{
-	int ret, i;
-
-	iio_evgen = kzalloc(sizeof(*iio_evgen), GFP_KERNEL);
-	if (!iio_evgen)
-		return -ENOMEM;
-
-	iio_evgen->base = irq_alloc_descs(-1, 0, IIO_EVENTGEN_NO, 0);
-	if (iio_evgen->base < 0) {
-		ret = iio_evgen->base;
-		kfree(iio_evgen);
-		return ret;
-	}
-	iio_evgen->chip.name = iio_evgen_name;
-	iio_evgen->chip.irq_mask = &iio_dummy_event_irqmask;
-	iio_evgen->chip.irq_unmask = &iio_dummy_event_irqunmask;
-	for (i = 0; i < IIO_EVENTGEN_NO; i++) {
-		irq_set_chip(iio_evgen->base + i, &iio_evgen->chip);
-		irq_set_handler(iio_evgen->base + i, &handle_simple_irq);
-		irq_modify_status(iio_evgen->base + i,
-				  IRQ_NOREQUEST | IRQ_NOAUTOEN,
-				  IRQ_NOPROBE);
-	}
-	mutex_init(&iio_evgen->lock);
-	return 0;
-}
-
-/**
- * iio_dummy_evgen_get_irq() - get an evgen provided irq for a device
- *
- * This function will give a free allocated irq to a client device.
- * That irq can then be caused to 'fire' by using the associated sysfs file.
- */
-int iio_dummy_evgen_get_irq(void)
-{
-	int i, ret = 0;
-
-	if (!iio_evgen)
-		return -ENODEV;
-
-	mutex_lock(&iio_evgen->lock);
-	for (i = 0; i < IIO_EVENTGEN_NO; i++)
-		if (!iio_evgen->inuse[i]) {
-			ret = iio_evgen->base + i;
-			iio_evgen->inuse[i] = true;
-			break;
-		}
-	mutex_unlock(&iio_evgen->lock);
-	if (i == IIO_EVENTGEN_NO)
-		return -ENOMEM;
-	return ret;
-}
-EXPORT_SYMBOL_GPL(iio_dummy_evgen_get_irq);
-
-/**
- * iio_dummy_evgen_release_irq() - give the irq back.
- * @irq: irq being returned to the pool
- *
- * Used by client driver instances to give the irqs back when they disconnect
- */
-void iio_dummy_evgen_release_irq(int irq)
-{
-	mutex_lock(&iio_evgen->lock);
-	iio_evgen->inuse[irq - iio_evgen->base] = false;
-	mutex_unlock(&iio_evgen->lock);
-}
-EXPORT_SYMBOL_GPL(iio_dummy_evgen_release_irq);
-
-struct iio_dummy_regs *iio_dummy_evgen_get_regs(int irq)
-{
-	return &iio_evgen->regs[irq - iio_evgen->base];
-}
-EXPORT_SYMBOL_GPL(iio_dummy_evgen_get_regs);
-
-static void iio_dummy_evgen_free(void)
-{
-	irq_free_descs(iio_evgen->base, IIO_EVENTGEN_NO);
-	kfree(iio_evgen);
-}
-
-static void iio_evgen_release(struct device *dev)
-{
-	iio_dummy_evgen_free();
-}
-
-static ssize_t iio_evgen_poke(struct device *dev,
-			      struct device_attribute *attr,
-			      const char *buf,
-			      size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	unsigned long event;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &event);
-	if (ret)
-		return ret;
-
-	iio_evgen->regs[this_attr->address].reg_id   = this_attr->address;
-	iio_evgen->regs[this_attr->address].reg_data = event;
-
-	if (iio_evgen->enabled[this_attr->address])
-		handle_nested_irq(iio_evgen->base + this_attr->address);
-
-	return len;
-}
-
-static IIO_DEVICE_ATTR(poke_ev0, S_IWUSR, NULL, &iio_evgen_poke, 0);
-static IIO_DEVICE_ATTR(poke_ev1, S_IWUSR, NULL, &iio_evgen_poke, 1);
-static IIO_DEVICE_ATTR(poke_ev2, S_IWUSR, NULL, &iio_evgen_poke, 2);
-static IIO_DEVICE_ATTR(poke_ev3, S_IWUSR, NULL, &iio_evgen_poke, 3);
-static IIO_DEVICE_ATTR(poke_ev4, S_IWUSR, NULL, &iio_evgen_poke, 4);
-static IIO_DEVICE_ATTR(poke_ev5, S_IWUSR, NULL, &iio_evgen_poke, 5);
-static IIO_DEVICE_ATTR(poke_ev6, S_IWUSR, NULL, &iio_evgen_poke, 6);
-static IIO_DEVICE_ATTR(poke_ev7, S_IWUSR, NULL, &iio_evgen_poke, 7);
-static IIO_DEVICE_ATTR(poke_ev8, S_IWUSR, NULL, &iio_evgen_poke, 8);
-static IIO_DEVICE_ATTR(poke_ev9, S_IWUSR, NULL, &iio_evgen_poke, 9);
-
-static struct attribute *iio_evgen_attrs[] = {
-	&iio_dev_attr_poke_ev0.dev_attr.attr,
-	&iio_dev_attr_poke_ev1.dev_attr.attr,
-	&iio_dev_attr_poke_ev2.dev_attr.attr,
-	&iio_dev_attr_poke_ev3.dev_attr.attr,
-	&iio_dev_attr_poke_ev4.dev_attr.attr,
-	&iio_dev_attr_poke_ev5.dev_attr.attr,
-	&iio_dev_attr_poke_ev6.dev_attr.attr,
-	&iio_dev_attr_poke_ev7.dev_attr.attr,
-	&iio_dev_attr_poke_ev8.dev_attr.attr,
-	&iio_dev_attr_poke_ev9.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group iio_evgen_group = {
-	.attrs = iio_evgen_attrs,
-};
-
-static const struct attribute_group *iio_evgen_groups[] = {
-	&iio_evgen_group,
-	NULL
-};
-
-static struct device iio_evgen_dev = {
-	.bus = &iio_bus_type,
-	.groups = iio_evgen_groups,
-	.release = &iio_evgen_release,
-};
-
-static __init int iio_dummy_evgen_init(void)
-{
-	int ret = iio_dummy_evgen_create();
-
-	if (ret < 0)
-		return ret;
-	device_initialize(&iio_evgen_dev);
-	dev_set_name(&iio_evgen_dev, "iio_evgen");
-	return device_add(&iio_evgen_dev);
-}
-module_init(iio_dummy_evgen_init);
-
-static __exit void iio_dummy_evgen_exit(void)
-{
-	device_unregister(&iio_evgen_dev);
-}
-module_exit(iio_dummy_evgen_exit);
-
-MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
-MODULE_DESCRIPTION("IIO dummy driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/iio_dummy_evgen.h b/drivers/staging/iio/iio_dummy_evgen.h
deleted file mode 100644
index d044b946e74a..000000000000
--- a/drivers/staging/iio/iio_dummy_evgen.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef _IIO_DUMMY_EVGEN_H_
-#define _IIO_DUMMY_EVGEN_H_
-
-struct iio_dummy_regs {
-	u32 reg_id;
-	u32 reg_data;
-};
-
-struct iio_dummy_regs *iio_dummy_evgen_get_regs(int irq);
-int iio_dummy_evgen_get_irq(void);
-void iio_dummy_evgen_release_irq(int irq);
-
-#endif /* _IIO_DUMMY_EVGEN_H_ */
diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
deleted file mode 100644
index 381f90ff468a..000000000000
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ /dev/null
@@ -1,748 +0,0 @@
-/**
- * Copyright (c) 2011 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * A reference industrial I/O driver to illustrate the functionality available.
- *
- * There are numerous real drivers to illustrate the finer points.
- * The purpose of this driver is to provide a driver with far more comments
- * and explanatory notes than any 'real' driver would have.
- * Anyone starting out writing an IIO driver should first make sure they
- * understand all of this driver except those bits specifically marked
- * as being present to allow us to 'fake' the presence of hardware.
- */
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-#include <linux/iio/buffer.h>
-#include "iio_simple_dummy.h"
-
-/*
- * A few elements needed to fake a bus for this driver
- * Note instances parameter controls how many of these
- * dummy devices are registered.
- */
-static unsigned instances = 1;
-module_param(instances, uint, 0);
-
-/* Pointer array used to fake bus elements */
-static struct iio_dev **iio_dummy_devs;
-
-/* Fake a name for the part number, usually obtained from the id table */
-static const char *iio_dummy_part_number = "iio_dummy_part_no";
-
-/**
- * struct iio_dummy_accel_calibscale - realworld to register mapping
- * @val: first value in read_raw - here integer part.
- * @val2: second value in read_raw etc - here micro part.
- * @regval: register value - magic device specific numbers.
- */
-struct iio_dummy_accel_calibscale {
-	int val;
-	int val2;
-	int regval; /* what would be written to hardware */
-};
-
-static const struct iio_dummy_accel_calibscale dummy_scales[] = {
-	{ 0, 100, 0x8 }, /* 0.000100 */
-	{ 0, 133, 0x7 }, /* 0.000133 */
-	{ 733, 13, 0x9 }, /* 733.000013 */
-};
-
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-
-/*
- * simple event - triggered when value rises above
- * a threshold
- */
-static const struct iio_event_spec iio_dummy_event = {
-	.type = IIO_EV_TYPE_THRESH,
-	.dir = IIO_EV_DIR_RISING,
-	.mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE),
-};
-
-/*
- * simple step detect event - triggered when a step is detected
- */
-static const struct iio_event_spec step_detect_event = {
-	.type = IIO_EV_TYPE_CHANGE,
-	.dir = IIO_EV_DIR_NONE,
-	.mask_separate = BIT(IIO_EV_INFO_ENABLE),
-};
-
-/*
- * simple transition event - triggered when the reported running confidence
- * value rises above a threshold value
- */
-static const struct iio_event_spec iio_running_event = {
-	.type = IIO_EV_TYPE_THRESH,
-	.dir = IIO_EV_DIR_RISING,
-	.mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE),
-};
-
-/*
- * simple transition event - triggered when the reported walking confidence
- * value falls under a threshold value
- */
-static const struct iio_event_spec iio_walking_event = {
-	.type = IIO_EV_TYPE_THRESH,
-	.dir = IIO_EV_DIR_FALLING,
-	.mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE),
-};
-#endif
-
-/*
- * iio_dummy_channels - Description of available channels
- *
- * This array of structures tells the IIO core about what the device
- * actually provides for a given channel.
- */
-static const struct iio_chan_spec iio_dummy_channels[] = {
-	/* indexed ADC channel in_voltage0_raw etc */
-	{
-		.type = IIO_VOLTAGE,
-		/* Channel has a numeric index of 0 */
-		.indexed = 1,
-		.channel = 0,
-		/* What other information is available? */
-		.info_mask_separate =
-		/*
-		 * in_voltage0_raw
-		 * Raw (unscaled no bias removal etc) measurement
-		 * from the device.
-		 */
-		BIT(IIO_CHAN_INFO_RAW) |
-		/*
-		 * in_voltage0_offset
-		 * Offset for userspace to apply prior to scale
-		 * when converting to standard units (microvolts)
-		 */
-		BIT(IIO_CHAN_INFO_OFFSET) |
-		/*
-		 * in_voltage0_scale
-		 * Multipler for userspace to apply post offset
-		 * when converting to standard units (microvolts)
-		 */
-		BIT(IIO_CHAN_INFO_SCALE),
-		/*
-		 * sampling_frequency
-		 * The frequency in Hz at which the channels are sampled
-		 */
-		.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
-		/* The ordering of elements in the buffer via an enum */
-		.scan_index = voltage0,
-		.scan_type = { /* Description of storage in buffer */
-			.sign = 'u', /* unsigned */
-			.realbits = 13, /* 13 bits */
-			.storagebits = 16, /* 16 bits used for storage */
-			.shift = 0, /* zero shift */
-		},
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-		.event_spec = &iio_dummy_event,
-		.num_event_specs = 1,
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
-	},
-	/* Differential ADC channel in_voltage1-voltage2_raw etc*/
-	{
-		.type = IIO_VOLTAGE,
-		.differential = 1,
-		/*
-		 * Indexing for differential channels uses channel
-		 * for the positive part, channel2 for the negative.
-		 */
-		.indexed = 1,
-		.channel = 1,
-		.channel2 = 2,
-		/*
-		 * in_voltage1-voltage2_raw
-		 * Raw (unscaled no bias removal etc) measurement
-		 * from the device.
-		 */
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		/*
-		 * in_voltage-voltage_scale
-		 * Shared version of scale - shared by differential
-		 * input channels of type IIO_VOLTAGE.
-		 */
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
-		/*
-		 * sampling_frequency
-		 * The frequency in Hz at which the channels are sampled
-		 */
-		.scan_index = diffvoltage1m2,
-		.scan_type = { /* Description of storage in buffer */
-			.sign = 's', /* signed */
-			.realbits = 12, /* 12 bits */
-			.storagebits = 16, /* 16 bits used for storage */
-			.shift = 0, /* zero shift */
-		},
-	},
-	/* Differential ADC channel in_voltage3-voltage4_raw etc*/
-	{
-		.type = IIO_VOLTAGE,
-		.differential = 1,
-		.indexed = 1,
-		.channel = 3,
-		.channel2 = 4,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
-		.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
-		.scan_index = diffvoltage3m4,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 11,
-			.storagebits = 16,
-			.shift = 0,
-		},
-	},
-	/*
-	 * 'modified' (i.e. axis specified) acceleration channel
-	 * in_accel_z_raw
-	 */
-	{
-		.type = IIO_ACCEL,
-		.modified = 1,
-		/* Channel 2 is use for modifiers */
-		.channel2 = IIO_MOD_X,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		/*
-		 * Internal bias and gain correction values. Applied
-		 * by the hardware or driver prior to userspace
-		 * seeing the readings. Typically part of hardware
-		 * calibration.
-		 */
-		BIT(IIO_CHAN_INFO_CALIBSCALE) |
-		BIT(IIO_CHAN_INFO_CALIBBIAS),
-		.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
-		.scan_index = accelx,
-		.scan_type = { /* Description of storage in buffer */
-			.sign = 's', /* signed */
-			.realbits = 16, /* 16 bits */
-			.storagebits = 16, /* 16 bits used for storage */
-			.shift = 0, /* zero shift */
-		},
-	},
-	/*
-	 * Convenience macro for timestamps. 4 is the index in
-	 * the buffer.
-	 */
-	IIO_CHAN_SOFT_TIMESTAMP(4),
-	/* DAC channel out_voltage0_raw */
-	{
-		.type = IIO_VOLTAGE,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.scan_index = -1, /* No buffer support */
-		.output = 1,
-		.indexed = 1,
-		.channel = 0,
-	},
-	{
-		.type = IIO_STEPS,
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_ENABLE) |
-			BIT(IIO_CHAN_INFO_CALIBHEIGHT),
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
-		.scan_index = -1, /* No buffer support */
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-		.event_spec = &step_detect_event,
-		.num_event_specs = 1,
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
-	},
-	{
-		.type = IIO_ACTIVITY,
-		.modified = 1,
-		.channel2 = IIO_MOD_RUNNING,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
-		.scan_index = -1, /* No buffer support */
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-		.event_spec = &iio_running_event,
-		.num_event_specs = 1,
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
-	},
-	{
-		.type = IIO_ACTIVITY,
-		.modified = 1,
-		.channel2 = IIO_MOD_WALKING,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
-		.scan_index = -1, /* No buffer support */
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-		.event_spec = &iio_walking_event,
-		.num_event_specs = 1,
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
-	},
-};
-
-/**
- * iio_dummy_read_raw() - data read function.
- * @indio_dev:	the struct iio_dev associated with this device instance
- * @chan:	the channel whose data is to be read
- * @val:	first element of returned value (typically INT)
- * @val2:	second element of returned value (typically MICRO)
- * @mask:	what we actually want to read as per the info_mask_*
- *		in iio_chan_spec.
- */
-static int iio_dummy_read_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int *val,
-			      int *val2,
-			      long mask)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-	int ret = -EINVAL;
-
-	mutex_lock(&st->lock);
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW: /* magic value - channel value read */
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			if (chan->output) {
-				/* Set integer part to cached value */
-				*val = st->dac_val;
-				ret = IIO_VAL_INT;
-			} else if (chan->differential) {
-				if (chan->channel == 1)
-					*val = st->differential_adc_val[0];
-				else
-					*val = st->differential_adc_val[1];
-				ret = IIO_VAL_INT;
-			} else {
-				*val = st->single_ended_adc_val;
-				ret = IIO_VAL_INT;
-			}
-			break;
-		case IIO_ACCEL:
-			*val = st->accel_val;
-			ret = IIO_VAL_INT;
-			break;
-		default:
-			break;
-		}
-		break;
-	case IIO_CHAN_INFO_PROCESSED:
-		switch (chan->type) {
-		case IIO_STEPS:
-			*val = st->steps;
-			ret = IIO_VAL_INT;
-			break;
-		case IIO_ACTIVITY:
-			switch (chan->channel2) {
-			case IIO_MOD_RUNNING:
-				*val = st->activity_running;
-				ret = IIO_VAL_INT;
-				break;
-			case IIO_MOD_WALKING:
-				*val = st->activity_walking;
-				ret = IIO_VAL_INT;
-				break;
-			default:
-				break;
-			}
-			break;
-		default:
-			break;
-		}
-		break;
-	case IIO_CHAN_INFO_OFFSET:
-		/* only single ended adc -> 7 */
-		*val = 7;
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_SCALE:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			switch (chan->differential) {
-			case 0:
-				/* only single ended adc -> 0.001333 */
-				*val = 0;
-				*val2 = 1333;
-				ret = IIO_VAL_INT_PLUS_MICRO;
-				break;
-			case 1:
-				/* all differential adc channels ->
-				 * 0.000001344 */
-				*val = 0;
-				*val2 = 1344;
-				ret = IIO_VAL_INT_PLUS_NANO;
-			}
-			break;
-		default:
-			break;
-		}
-		break;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		/* only the acceleration axis - read from cache */
-		*val = st->accel_calibbias;
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_CALIBSCALE:
-		*val = st->accel_calibscale->val;
-		*val2 = st->accel_calibscale->val2;
-		ret = IIO_VAL_INT_PLUS_MICRO;
-		break;
-	case IIO_CHAN_INFO_SAMP_FREQ:
-		*val = 3;
-		*val2 = 33;
-		ret = IIO_VAL_INT_PLUS_NANO;
-		break;
-	case IIO_CHAN_INFO_ENABLE:
-		switch (chan->type) {
-		case IIO_STEPS:
-			*val = st->steps_enabled;
-			ret = IIO_VAL_INT;
-			break;
-		default:
-			break;
-		}
-		break;
-	case IIO_CHAN_INFO_CALIBHEIGHT:
-		switch (chan->type) {
-		case IIO_STEPS:
-			*val = st->height;
-			ret = IIO_VAL_INT;
-			break;
-		default:
-			break;
-		}
-		break;
-
-	default:
-		break;
-	}
-	mutex_unlock(&st->lock);
-	return ret;
-}
-
-/**
- * iio_dummy_write_raw() - data write function.
- * @indio_dev:	the struct iio_dev associated with this device instance
- * @chan:	the channel whose data is to be written
- * @val:	first element of value to set (typically INT)
- * @val2:	second element of value to set (typically MICRO)
- * @mask:	what we actually want to write as per the info_mask_*
- *		in iio_chan_spec.
- *
- * Note that all raw writes are assumed IIO_VAL_INT and info mask elements
- * are assumed to be IIO_INT_PLUS_MICRO unless the callback write_raw_get_fmt
- * in struct iio_info is provided by the driver.
- */
-static int iio_dummy_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	int i;
-	int ret = 0;
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		switch (chan->type) {
-		case IIO_VOLTAGE:
-			if (chan->output == 0)
-				return -EINVAL;
-
-			/* Locking not required as writing single value */
-			mutex_lock(&st->lock);
-			st->dac_val = val;
-			mutex_unlock(&st->lock);
-			return 0;
-		default:
-			return -EINVAL;
-		}
-	case IIO_CHAN_INFO_PROCESSED:
-		switch (chan->type) {
-		case IIO_STEPS:
-			mutex_lock(&st->lock);
-			st->steps = val;
-			mutex_unlock(&st->lock);
-			return 0;
-		case IIO_ACTIVITY:
-			if (val < 0)
-				val = 0;
-			if (val > 100)
-				val = 100;
-			switch (chan->channel2) {
-			case IIO_MOD_RUNNING:
-				st->activity_running = val;
-				return 0;
-			case IIO_MOD_WALKING:
-				st->activity_walking = val;
-				return 0;
-			default:
-				return -EINVAL;
-			}
-			break;
-		default:
-			return -EINVAL;
-		}
-	case IIO_CHAN_INFO_CALIBSCALE:
-		mutex_lock(&st->lock);
-		/* Compare against table - hard matching here */
-		for (i = 0; i < ARRAY_SIZE(dummy_scales); i++)
-			if (val == dummy_scales[i].val &&
-			    val2 == dummy_scales[i].val2)
-				break;
-		if (i == ARRAY_SIZE(dummy_scales))
-			ret = -EINVAL;
-		else
-			st->accel_calibscale = &dummy_scales[i];
-		mutex_unlock(&st->lock);
-		return ret;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		mutex_lock(&st->lock);
-		st->accel_calibbias = val;
-		mutex_unlock(&st->lock);
-		return 0;
-	case IIO_CHAN_INFO_ENABLE:
-		switch (chan->type) {
-		case IIO_STEPS:
-			mutex_lock(&st->lock);
-			st->steps_enabled = val;
-			mutex_unlock(&st->lock);
-			return 0;
-		default:
-			return -EINVAL;
-		}
-	case IIO_CHAN_INFO_CALIBHEIGHT:
-		switch (chan->type) {
-		case IIO_STEPS:
-			st->height = val;
-			return 0;
-		default:
-			return -EINVAL;
-		}
-
-	default:
-		return -EINVAL;
-	}
-}
-
-/*
- * Device type specific information.
- */
-static const struct iio_info iio_dummy_info = {
-	.driver_module = THIS_MODULE,
-	.read_raw = &iio_dummy_read_raw,
-	.write_raw = &iio_dummy_write_raw,
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-	.read_event_config = &iio_simple_dummy_read_event_config,
-	.write_event_config = &iio_simple_dummy_write_event_config,
-	.read_event_value = &iio_simple_dummy_read_event_value,
-	.write_event_value = &iio_simple_dummy_write_event_value,
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
-};
-
-/**
- * iio_dummy_init_device() - device instance specific init
- * @indio_dev: the iio device structure
- *
- * Most drivers have one of these to set up default values,
- * reset the device to known state etc.
- */
-static int iio_dummy_init_device(struct iio_dev *indio_dev)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	st->dac_val = 0;
-	st->single_ended_adc_val = 73;
-	st->differential_adc_val[0] = 33;
-	st->differential_adc_val[1] = -34;
-	st->accel_val = 34;
-	st->accel_calibbias = -7;
-	st->accel_calibscale = &dummy_scales[0];
-	st->steps = 47;
-	st->activity_running = 98;
-	st->activity_walking = 4;
-
-	return 0;
-}
-
-/**
- * iio_dummy_probe() - device instance probe
- * @index: an id number for this instance.
- *
- * Arguments are bus type specific.
- * I2C: iio_dummy_probe(struct i2c_client *client,
- *                      const struct i2c_device_id *id)
- * SPI: iio_dummy_probe(struct spi_device *spi)
- */
-static int iio_dummy_probe(int index)
-{
-	int ret;
-	struct iio_dev *indio_dev;
-	struct iio_dummy_state *st;
-
-	/*
-	 * Allocate an IIO device.
-	 *
-	 * This structure contains all generic state
-	 * information about the device instance.
-	 * It also has a region (accessed by iio_priv()
-	 * for chip specific state information.
-	 */
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (!indio_dev) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-
-	st = iio_priv(indio_dev);
-	mutex_init(&st->lock);
-
-	iio_dummy_init_device(indio_dev);
-	/*
-	 * With hardware: Set the parent device.
-	 * indio_dev->dev.parent = &spi->dev;
-	 * indio_dev->dev.parent = &client->dev;
-	 */
-
-	 /*
-	 * Make the iio_dev struct available to remove function.
-	 * Bus equivalents
-	 * i2c_set_clientdata(client, indio_dev);
-	 * spi_set_drvdata(spi, indio_dev);
-	 */
-	iio_dummy_devs[index] = indio_dev;
-
-	/*
-	 * Set the device name.
-	 *
-	 * This is typically a part number and obtained from the module
-	 * id table.
-	 * e.g. for i2c and spi:
-	 *    indio_dev->name = id->name;
-	 *    indio_dev->name = spi_get_device_id(spi)->name;
-	 */
-	indio_dev->name = iio_dummy_part_number;
-
-	/* Provide description of available channels */
-	indio_dev->channels = iio_dummy_channels;
-	indio_dev->num_channels = ARRAY_SIZE(iio_dummy_channels);
-
-	/*
-	 * Provide device type specific interface functions and
-	 * constant data.
-	 */
-	indio_dev->info = &iio_dummy_info;
-
-	/* Specify that device provides sysfs type interfaces */
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = iio_simple_dummy_events_register(indio_dev);
-	if (ret < 0)
-		goto error_free_device;
-
-	ret = iio_simple_dummy_configure_buffer(indio_dev);
-	if (ret < 0)
-		goto error_unregister_events;
-
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		goto error_unconfigure_buffer;
-
-	return 0;
-error_unconfigure_buffer:
-	iio_simple_dummy_unconfigure_buffer(indio_dev);
-error_unregister_events:
-	iio_simple_dummy_events_unregister(indio_dev);
-error_free_device:
-	iio_device_free(indio_dev);
-error_ret:
-	return ret;
-}
-
-/**
- * iio_dummy_remove() - device instance removal function
- * @index: device index.
- *
- * Parameters follow those of iio_dummy_probe for buses.
- */
-static void iio_dummy_remove(int index)
-{
-	/*
-	 * Get a pointer to the device instance iio_dev structure
-	 * from the bus subsystem. E.g.
-	 * struct iio_dev *indio_dev = i2c_get_clientdata(client);
-	 * struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	 */
-	struct iio_dev *indio_dev = iio_dummy_devs[index];
-
-	/* Unregister the device */
-	iio_device_unregister(indio_dev);
-
-	/* Device specific code to power down etc */
-
-	/* Buffered capture related cleanup */
-	iio_simple_dummy_unconfigure_buffer(indio_dev);
-
-	iio_simple_dummy_events_unregister(indio_dev);
-
-	/* Free all structures */
-	iio_device_free(indio_dev);
-}
-
-/**
- * iio_dummy_init() -  device driver registration
- *
- * Varies depending on bus type of the device. As there is no device
- * here, call probe directly. For information on device registration
- * i2c:
- * Documentation/i2c/writing-clients
- * spi:
- * Documentation/spi/spi-summary
- */
-static __init int iio_dummy_init(void)
-{
-	int i, ret;
-
-	if (instances > 10) {
-		instances = 1;
-		return -EINVAL;
-	}
-
-	/* Fake a bus */
-	iio_dummy_devs = kcalloc(instances, sizeof(*iio_dummy_devs),
-				 GFP_KERNEL);
-	/* Here we have no actual device so call probe */
-	for (i = 0; i < instances; i++) {
-		ret = iio_dummy_probe(i);
-		if (ret < 0)
-			goto error_remove_devs;
-	}
-	return 0;
-
-error_remove_devs:
-	while (i--)
-		iio_dummy_remove(i);
-
-	kfree(iio_dummy_devs);
-	return ret;
-}
-module_init(iio_dummy_init);
-
-/**
- * iio_dummy_exit() - device driver removal
- *
- * Varies depending on bus type of the device.
- * As there is no device here, call remove directly.
- */
-static __exit void iio_dummy_exit(void)
-{
-	int i;
-
-	for (i = 0; i < instances; i++)
-		iio_dummy_remove(i);
-	kfree(iio_dummy_devs);
-}
-module_exit(iio_dummy_exit);
-
-MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
-MODULE_DESCRIPTION("IIO dummy driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/iio_simple_dummy.h b/drivers/staging/iio/iio_simple_dummy.h
deleted file mode 100644
index 8d00224e6fad..000000000000
--- a/drivers/staging/iio/iio_simple_dummy.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/**
- * Copyright (c) 2011 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * Join together the various functionality of iio_simple_dummy driver
- */
-
-#ifndef _IIO_SIMPLE_DUMMY_H_
-#define _IIO_SIMPLE_DUMMY_H_
-#include <linux/kernel.h>
-
-struct iio_dummy_accel_calibscale;
-struct iio_dummy_regs;
-
-/**
- * struct iio_dummy_state - device instance specific state.
- * @dac_val:			cache for dac value
- * @single_ended_adc_val:	cache for single ended adc value
- * @differential_adc_val:	cache for differential adc value
- * @accel_val:			cache for acceleration value
- * @accel_calibbias:		cache for acceleration calibbias
- * @accel_calibscale:		cache for acceleration calibscale
- * @lock:			lock to ensure state is consistent
- * @event_irq:			irq number for event line (faked)
- * @event_val:			cache for event threshold value
- * @event_en:			cache of whether event is enabled
- */
-struct iio_dummy_state {
-	int dac_val;
-	int single_ended_adc_val;
-	int differential_adc_val[2];
-	int accel_val;
-	int accel_calibbias;
-	int activity_running;
-	int activity_walking;
-	const struct iio_dummy_accel_calibscale *accel_calibscale;
-	struct mutex lock;
-	struct iio_dummy_regs *regs;
-	int steps_enabled;
-	int steps;
-	int height;
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-	int event_irq;
-	int event_val;
-	bool event_en;
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
-};
-
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-
-struct iio_dev;
-
-int iio_simple_dummy_read_event_config(struct iio_dev *indio_dev,
-				       const struct iio_chan_spec *chan,
-				       enum iio_event_type type,
-				       enum iio_event_direction dir);
-
-int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
-					const struct iio_chan_spec *chan,
-					enum iio_event_type type,
-					enum iio_event_direction dir,
-					int state);
-
-int iio_simple_dummy_read_event_value(struct iio_dev *indio_dev,
-				      const struct iio_chan_spec *chan,
-				      enum iio_event_type type,
-				      enum iio_event_direction dir,
-				      enum iio_event_info info, int *val,
-				      int *val2);
-
-int iio_simple_dummy_write_event_value(struct iio_dev *indio_dev,
-				       const struct iio_chan_spec *chan,
-				       enum iio_event_type type,
-				       enum iio_event_direction dir,
-				       enum iio_event_info info, int val,
-				       int val2);
-
-int iio_simple_dummy_events_register(struct iio_dev *indio_dev);
-void iio_simple_dummy_events_unregister(struct iio_dev *indio_dev);
-
-#else /* Stubs for when events are disabled at compile time */
-
-static inline int
-iio_simple_dummy_events_register(struct iio_dev *indio_dev)
-{
-	return 0;
-};
-
-static inline void
-iio_simple_dummy_events_unregister(struct iio_dev *indio_dev)
-{ };
-
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS*/
-
-/**
- * enum iio_simple_dummy_scan_elements - scan index enum
- * @voltage0:		the single ended voltage channel
- * @diffvoltage1m2:	first differential channel
- * @diffvoltage3m4:	second differenial channel
- * @accelx:		acceleration channel
- *
- * Enum provides convenient numbering for the scan index.
- */
-enum iio_simple_dummy_scan_elements {
-	voltage0,
-	diffvoltage1m2,
-	diffvoltage3m4,
-	accelx,
-};
-
-#ifdef CONFIG_IIO_SIMPLE_DUMMY_BUFFER
-int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev);
-void iio_simple_dummy_unconfigure_buffer(struct iio_dev *indio_dev);
-#else
-static inline int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
-{
-	return 0;
-};
-
-static inline
-void iio_simple_dummy_unconfigure_buffer(struct iio_dev *indio_dev)
-{};
-
-#endif /* CONFIG_IIO_SIMPLE_DUMMY_BUFFER */
-#endif /* _IIO_SIMPLE_DUMMY_H_ */
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
deleted file mode 100644
index 00ed7745f3c5..000000000000
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/**
- * Copyright (c) 2011 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * Buffer handling elements of industrial I/O reference driver.
- * Uses the kfifo buffer.
- *
- * To test without hardware use the sysfs trigger.
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/bitmap.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/kfifo_buf.h>
-
-#include "iio_simple_dummy.h"
-
-/* Some fake data */
-
-static const s16 fakedata[] = {
-	[voltage0] = 7,
-	[diffvoltage1m2] = -33,
-	[diffvoltage3m4] = -2,
-	[accelx] = 344,
-};
-
-/**
- * iio_simple_dummy_trigger_h() - the trigger handler function
- * @irq: the interrupt number
- * @p: private data - always a pointer to the poll func.
- *
- * This is the guts of buffered capture. On a trigger event occurring,
- * if the pollfunc is attached then this handler is called as a threaded
- * interrupt (and hence may sleep). It is responsible for grabbing data
- * from the device and pushing it into the associated buffer.
- */
-static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	int len = 0;
-	u16 *data;
-
-	data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
-	if (!data)
-		goto done;
-
-	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) {
-		/*
-		 * Three common options here:
-		 * hardware scans: certain combinations of channels make
-		 *   up a fast read.  The capture will consist of all of them.
-		 *   Hence we just call the grab data function and fill the
-		 *   buffer without processing.
-		 * software scans: can be considered to be random access
-		 *   so efficient reading is just a case of minimal bus
-		 *   transactions.
-		 * software culled hardware scans:
-		 *   occasionally a driver may process the nearest hardware
-		 *   scan to avoid storing elements that are not desired. This
-		 *   is the fiddliest option by far.
-		 * Here let's pretend we have random access. And the values are
-		 * in the constant table fakedata.
-		 */
-		int i, j;
-
-		for (i = 0, j = 0;
-		     i < bitmap_weight(indio_dev->active_scan_mask,
-				       indio_dev->masklength);
-		     i++, j++) {
-			j = find_next_bit(indio_dev->active_scan_mask,
-					  indio_dev->masklength, j);
-			/* random access read from the 'device' */
-			data[i] = fakedata[j];
-			len += 2;
-		}
-	}
-
-	iio_push_to_buffers_with_timestamp(indio_dev, data, iio_get_time_ns());
-
-	kfree(data);
-
-done:
-	/*
-	 * Tell the core we are done with this trigger and ready for the
-	 * next one.
-	 */
-	iio_trigger_notify_done(indio_dev->trig);
-
-	return IRQ_HANDLED;
-}
-
-static const struct iio_buffer_setup_ops iio_simple_dummy_buffer_setup_ops = {
-	/*
-	 * iio_triggered_buffer_postenable:
-	 * Generic function that simply attaches the pollfunc to the trigger.
-	 * Replace this to mess with hardware state before we attach the
-	 * trigger.
-	 */
-	.postenable = &iio_triggered_buffer_postenable,
-	/*
-	 * iio_triggered_buffer_predisable:
-	 * Generic function that simple detaches the pollfunc from the trigger.
-	 * Replace this to put hardware state back again after the trigger is
-	 * detached but before userspace knows we have disabled the ring.
-	 */
-	.predisable = &iio_triggered_buffer_predisable,
-};
-
-int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct iio_buffer *buffer;
-
-	/* Allocate a buffer to use - here a kfifo */
-	buffer = iio_kfifo_allocate();
-	if (!buffer) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-
-	iio_device_attach_buffer(indio_dev, buffer);
-
-	/* Enable timestamps by default */
-	buffer->scan_timestamp = true;
-
-	/*
-	 * Tell the core what device type specific functions should
-	 * be run on either side of buffer capture enable / disable.
-	 */
-	indio_dev->setup_ops = &iio_simple_dummy_buffer_setup_ops;
-
-	/*
-	 * Configure a polling function.
-	 * When a trigger event with this polling function connected
-	 * occurs, this function is run. Typically this grabs data
-	 * from the device.
-	 *
-	 * NULL for the bottom half. This is normally implemented only if we
-	 * either want to ping a capture now pin (no sleeping) or grab
-	 * a timestamp as close as possible to a data ready trigger firing.
-	 *
-	 * IRQF_ONESHOT ensures irqs are masked such that only one instance
-	 * of the handler can run at a time.
-	 *
-	 * "iio_simple_dummy_consumer%d" formatting string for the irq 'name'
-	 * as seen under /proc/interrupts. Remaining parameters as per printk.
-	 */
-	indio_dev->pollfunc = iio_alloc_pollfunc(NULL,
-						 &iio_simple_dummy_trigger_h,
-						 IRQF_ONESHOT,
-						 indio_dev,
-						 "iio_simple_dummy_consumer%d",
-						 indio_dev->id);
-
-	if (!indio_dev->pollfunc) {
-		ret = -ENOMEM;
-		goto error_free_buffer;
-	}
-
-	/*
-	 * Notify the core that this device is capable of buffered capture
-	 * driven by a trigger.
-	 */
-	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
-
-	return 0;
-
-error_free_buffer:
-	iio_kfifo_free(indio_dev->buffer);
-error_ret:
-	return ret;
-}
-
-/**
- * iio_simple_dummy_unconfigure_buffer() - release buffer resources
- * @indo_dev: device instance state
- */
-void iio_simple_dummy_unconfigure_buffer(struct iio_dev *indio_dev)
-{
-	iio_dealloc_pollfunc(indio_dev->pollfunc);
-	iio_kfifo_free(indio_dev->buffer);
-}
diff --git a/drivers/staging/iio/iio_simple_dummy_events.c b/drivers/staging/iio/iio_simple_dummy_events.c
deleted file mode 100644
index 73108baf80ad..000000000000
--- a/drivers/staging/iio/iio_simple_dummy_events.c
+++ /dev/null
@@ -1,267 +0,0 @@
-/**
- * Copyright (c) 2011 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * Event handling elements of industrial I/O reference driver.
- */
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/events.h>
-#include "iio_simple_dummy.h"
-
-/* Evgen 'fakes' interrupt events for this example */
-#include "iio_dummy_evgen.h"
-
-/**
- * iio_simple_dummy_read_event_config() - is event enabled?
- * @indio_dev: the device instance data
- * @chan: channel for the event whose state is being queried
- * @type: type of the event whose state is being queried
- * @dir: direction of the vent whose state is being queried
- *
- * This function would normally query the relevant registers or a cache to
- * discover if the event generation is enabled on the device.
- */
-int iio_simple_dummy_read_event_config(struct iio_dev *indio_dev,
-				       const struct iio_chan_spec *chan,
-				       enum iio_event_type type,
-				       enum iio_event_direction dir)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	return st->event_en;
-}
-
-/**
- * iio_simple_dummy_write_event_config() - set whether event is enabled
- * @indio_dev: the device instance data
- * @chan: channel for the event whose state is being set
- * @type: type of the event whose state is being set
- * @dir: direction of the vent whose state is being set
- * @state: whether to enable or disable the device.
- *
- * This function would normally set the relevant registers on the devices
- * so that it generates the specified event. Here it just sets up a cached
- * value.
- */
-int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
-					const struct iio_chan_spec *chan,
-					enum iio_event_type type,
-					enum iio_event_direction dir,
-					int state)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	/*
-	 *  Deliberately over the top code splitting to illustrate
-	 * how this is done when multiple events exist.
-	 */
-	switch (chan->type) {
-	case IIO_VOLTAGE:
-		switch (type) {
-		case IIO_EV_TYPE_THRESH:
-			if (dir == IIO_EV_DIR_RISING)
-				st->event_en = state;
-			else
-				return -EINVAL;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_ACTIVITY:
-		switch (type) {
-		case IIO_EV_TYPE_THRESH:
-			st->event_en = state;
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_STEPS:
-		switch (type) {
-		case IIO_EV_TYPE_CHANGE:
-			st->event_en = state;
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/**
- * iio_simple_dummy_read_event_value() - get value associated with event
- * @indio_dev: device instance specific data
- * @chan: channel for the event whose value is being read
- * @type: type of the event whose value is being read
- * @dir: direction of the vent whose value is being read
- * @info: info type of the event whose value is being read
- * @val: value for the event code.
- *
- * Many devices provide a large set of events of which only a subset may
- * be enabled at a time, with value registers whose meaning changes depending
- * on the event enabled. This often means that the driver must cache the values
- * associated with each possible events so that the right value is in place when
- * the enabled event is changed.
- */
-int iio_simple_dummy_read_event_value(struct iio_dev *indio_dev,
-				      const struct iio_chan_spec *chan,
-				      enum iio_event_type type,
-				      enum iio_event_direction dir,
-				      enum iio_event_info info,
-				      int *val, int *val2)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	*val = st->event_val;
-
-	return IIO_VAL_INT;
-}
-
-/**
- * iio_simple_dummy_write_event_value() - set value associate with event
- * @indio_dev: device instance specific data
- * @chan: channel for the event whose value is being set
- * @type: type of the event whose value is being set
- * @dir: direction of the vent whose value is being set
- * @info: info type of the event whose value is being set
- * @val: the value to be set.
- */
-int iio_simple_dummy_write_event_value(struct iio_dev *indio_dev,
-				       const struct iio_chan_spec *chan,
-				       enum iio_event_type type,
-				       enum iio_event_direction dir,
-				       enum iio_event_info info,
-				       int val, int val2)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	st->event_val = val;
-
-	return 0;
-}
-
-/**
- * iio_simple_dummy_event_handler() - identify and pass on event
- * @irq: irq of event line
- * @private: pointer to device instance state.
- *
- * This handler is responsible for querying the device to find out what
- * event occurred and for then pushing that event towards userspace.
- * Here only one event occurs so we push that directly on with locally
- * grabbed timestamp.
- */
-static irqreturn_t iio_simple_dummy_event_handler(int irq, void *private)
-{
-	struct iio_dev *indio_dev = private;
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	dev_dbg(&indio_dev->dev, "id %x event %x\n",
-		st->regs->reg_id, st->regs->reg_data);
-
-	switch (st->regs->reg_data) {
-	case 0:
-		iio_push_event(indio_dev,
-			       IIO_EVENT_CODE(IIO_VOLTAGE, 0, 0,
-					      IIO_EV_DIR_RISING,
-					      IIO_EV_TYPE_THRESH, 0, 0, 0),
-			       iio_get_time_ns());
-		break;
-	case 1:
-		if (st->activity_running > st->event_val)
-			iio_push_event(indio_dev,
-				       IIO_EVENT_CODE(IIO_ACTIVITY, 0,
-						      IIO_MOD_RUNNING,
-						      IIO_EV_DIR_RISING,
-						      IIO_EV_TYPE_THRESH,
-						      0, 0, 0),
-				       iio_get_time_ns());
-		break;
-	case 2:
-		if (st->activity_walking < st->event_val)
-			iio_push_event(indio_dev,
-				       IIO_EVENT_CODE(IIO_ACTIVITY, 0,
-						      IIO_MOD_WALKING,
-						      IIO_EV_DIR_FALLING,
-						      IIO_EV_TYPE_THRESH,
-						      0, 0, 0),
-				       iio_get_time_ns());
-		break;
-	case 3:
-		iio_push_event(indio_dev,
-			       IIO_EVENT_CODE(IIO_STEPS, 0, IIO_NO_MOD,
-					      IIO_EV_DIR_NONE,
-					      IIO_EV_TYPE_CHANGE, 0, 0, 0),
-			       iio_get_time_ns());
-		break;
-	default:
-		break;
-	}
-
-	return IRQ_HANDLED;
-}
-
-/**
- * iio_simple_dummy_events_register() - setup interrupt handling for events
- * @indio_dev: device instance data
- *
- * This function requests the threaded interrupt to handle the events.
- * Normally the irq is a hardware interrupt and the number comes
- * from board configuration files.  Here we get it from a companion
- * module that fakes the interrupt for us. Note that module in
- * no way forms part of this example. Just assume that events magically
- * appear via the provided interrupt.
- */
-int iio_simple_dummy_events_register(struct iio_dev *indio_dev)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-	int ret;
-
-	/* Fire up event source - normally not present */
-	st->event_irq = iio_dummy_evgen_get_irq();
-	if (st->event_irq < 0) {
-		ret = st->event_irq;
-		goto error_ret;
-	}
-	st->regs = iio_dummy_evgen_get_regs(st->event_irq);
-
-	ret = request_threaded_irq(st->event_irq,
-				   NULL,
-				   &iio_simple_dummy_event_handler,
-				   IRQF_ONESHOT,
-				   "iio_simple_event",
-				   indio_dev);
-	if (ret < 0)
-		goto error_free_evgen;
-	return 0;
-
-error_free_evgen:
-	iio_dummy_evgen_release_irq(st->event_irq);
-error_ret:
-	return ret;
-}
-
-/**
- * iio_simple_dummy_events_unregister() - tidy up interrupt handling on remove
- * @indio_dev: device instance data
- */
-void iio_simple_dummy_events_unregister(struct iio_dev *indio_dev)
-{
-	struct iio_dummy_state *st = iio_priv(indio_dev);
-
-	free_irq(st->event_irq, indio_dev);
-	/* Not part of normal driver */
-	iio_dummy_evgen_release_irq(st->event_irq);
-}
diff --git a/drivers/staging/iio/impedance-analyzer/Kconfig b/drivers/staging/iio/impedance-analyzer/Kconfig
index dd97b6bb3fd0..841648847edf 100644
--- a/drivers/staging/iio/impedance-analyzer/Kconfig
+++ b/drivers/staging/iio/impedance-analyzer/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Impedance Converter, Network Analyzer drivers
 #
@@ -10,7 +11,7 @@ config AD5933
 	select IIO_KFIFO_BUF
 	help
 	  Say yes here to build support for Analog Devices Impedance Converter,
-	  Network Analyzer, AD5933/4, provides direct access via sysfs.
+	  Network Analyzer, AD5933/4.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5933.
diff --git a/drivers/staging/iio/impedance-analyzer/Makefile b/drivers/staging/iio/impedance-analyzer/Makefile
index 7604d786583e..b4e657a1ac18 100644
--- a/drivers/staging/iio/impedance-analyzer/Makefile
+++ b/drivers/staging/iio/impedance-analyzer/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Impedance Converter, Network Analyzer drivers
 #
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index c18109c55497..85a4223295cd 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -1,34 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * AD5933 AD5934 Impedance Converter, Network Analyzer
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
-#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
 #include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/sysfs.h>
+#include <linux/err.h>
 #include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/regulator/consumer.h>
-#include <linux/slab.h>
+#include <linux/sysfs.h>
 #include <linux/types.h>
-#include <linux/err.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <asm/div64.h>
 
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
 #include <linux/iio/buffer.h>
+#include <linux/iio/iio.h>
 #include <linux/iio/kfifo_buf.h>
-
-#include "ad5933.h"
+#include <linux/iio/sysfs.h>
 
 /* AD5933/AD5934 Registers */
-#define AD5933_REG_CONTROL_HB		0x80	/* R/W, 2 bytes */
-#define AD5933_REG_CONTROL_LB		0x81	/* R/W, 2 bytes */
+#define AD5933_REG_CONTROL_HB		0x80	/* R/W, 1 byte */
+#define AD5933_REG_CONTROL_LB		0x81	/* R/W, 1 byte */
 #define AD5933_REG_FREQ_START		0x82	/* R/W, 3 bytes */
 #define AD5933_REG_FREQ_INC		0x85	/* R/W, 3 bytes */
 #define AD5933_REG_INC_NUM		0x88	/* R/W, 2 bytes, 9 bit */
@@ -88,68 +84,45 @@
 
 struct ad5933_state {
 	struct i2c_client		*client;
-	struct regulator		*reg;
+	struct clk			*mclk;
 	struct delayed_work		work;
+	struct mutex			lock; /* Protect sensor state */
 	unsigned long			mclk_hz;
 	unsigned char			ctrl_hb;
 	unsigned char			ctrl_lb;
-	unsigned			range_avail[4];
+	unsigned int			range_avail[4];
 	unsigned short			vref_mv;
 	unsigned short			settling_cycles;
 	unsigned short			freq_points;
-	unsigned			freq_start;
-	unsigned			freq_inc;
-	unsigned			state;
-	unsigned			poll_time_jiffies;
+	unsigned int			freq_start;
+	unsigned int			freq_inc;
+	unsigned int			state;
+	unsigned int			poll_time_jiffies;
 };
 
-static struct ad5933_platform_data ad5933_default_pdata  = {
-	.vref_mv = 3300,
-};
+#define AD5933_CHANNEL(_type, _extend_name, _info_mask_separate, _address, \
+		_scan_index, _realbits) { \
+	.type = (_type), \
+	.extend_name = (_extend_name), \
+	.info_mask_separate = (_info_mask_separate), \
+	.address = (_address), \
+	.scan_index = (_scan_index), \
+	.scan_type = { \
+		.sign = 's', \
+		.realbits = (_realbits), \
+		.storagebits = 16, \
+	}, \
+}
 
 static const struct iio_chan_spec ad5933_channels[] = {
-	{
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_SCALE),
-		.address = AD5933_REG_TEMP_DATA,
-		.scan_index = -1,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 14,
-			.storagebits = 16,
-		},
-	}, { /* Ring Channels */
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 0,
-		.extend_name = "real",
-		.address = AD5933_REG_REAL_DATA,
-		.scan_index = 0,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 16,
-			.storagebits = 16,
-		},
-	}, {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 0,
-		.extend_name = "imag",
-		.address = AD5933_REG_IMAG_DATA,
-		.scan_index = 1,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 16,
-			.storagebits = 16,
-		},
-	},
+	AD5933_CHANNEL(IIO_TEMP, NULL, BIT(IIO_CHAN_INFO_RAW) |
+		BIT(IIO_CHAN_INFO_SCALE), AD5933_REG_TEMP_DATA, -1, 14),
+	/* Ring Channels */
+	AD5933_CHANNEL(IIO_VOLTAGE, "real", 0, AD5933_REG_REAL_DATA, 0, 16),
+	AD5933_CHANNEL(IIO_VOLTAGE, "imag", 0, AD5933_REG_IMAG_DATA, 1, 16),
 };
 
-static int ad5933_i2c_write(struct i2c_client *client,
-			      u8 reg, u8 len, u8 *data)
+static int ad5933_i2c_write(struct i2c_client *client, u8 reg, u8 len, u8 *data)
 {
 	int ret;
 
@@ -163,8 +136,7 @@ static int ad5933_i2c_write(struct i2c_client *client,
 	return 0;
 }
 
-static int ad5933_i2c_read(struct i2c_client *client,
-			      u8 reg, u8 len, u8 *data)
+static int ad5933_i2c_read(struct i2c_client *client, u8 reg, u8 len, u8 *data)
 {
 	int ret;
 
@@ -214,7 +186,7 @@ static int ad5933_wait_busy(struct ad5933_state *st, unsigned char event)
 }
 
 static int ad5933_set_freq(struct ad5933_state *st,
-			   unsigned reg, unsigned long freq)
+			   unsigned int reg, unsigned long freq)
 {
 	unsigned long long freqreg;
 	union {
@@ -222,7 +194,7 @@ static int ad5933_set_freq(struct ad5933_state *st,
 		u8 d8[4];
 	} dat;
 
-	freqreg = (u64) freq * (u64) (1 << 27);
+	freqreg = (u64)freq * (u64)(1 << 27);
 	do_div(freqreg, st->mclk_hz / 4);
 
 	switch (reg) {
@@ -261,7 +233,8 @@ static int ad5933_setup(struct ad5933_state *st)
 	dat = cpu_to_be16(st->settling_cycles);
 
 	ret = ad5933_i2c_write(st->client,
-			AD5933_REG_SETTLING_CYCLES, 2, (u8 *)&dat);
+			       AD5933_REG_SETTLING_CYCLES,
+			       2, (u8 *)&dat);
 	if (ret < 0)
 		return ret;
 
@@ -274,11 +247,10 @@ static int ad5933_setup(struct ad5933_state *st)
 static void ad5933_calc_out_ranges(struct ad5933_state *st)
 {
 	int i;
-	unsigned normalized_3v3[4] = {1980, 198, 383, 970};
+	unsigned int normalized_3v3[4] = {1980, 198, 383, 970};
 
 	for (i = 0; i < 4; i++)
 		st->range_avail[i] = normalized_3v3[i] * st->vref_mv / 3300;
-
 }
 
 /*
@@ -286,8 +258,8 @@ static void ad5933_calc_out_ranges(struct ad5933_state *st)
  */
 
 static ssize_t ad5933_show_frequency(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
+				     struct device_attribute *attr,
+				     char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad5933_state *st = iio_priv(indio_dev);
@@ -299,24 +271,27 @@ static ssize_t ad5933_show_frequency(struct device *dev,
 		u8 d8[4];
 	} dat;
 
-	mutex_lock(&indio_dev->mlock);
+	if (!iio_device_claim_direct(indio_dev))
+		return -EBUSY;
+
 	ret = ad5933_i2c_read(st->client, this_attr->address, 3, &dat.d8[1]);
-	mutex_unlock(&indio_dev->mlock);
+
+	iio_device_release_direct(indio_dev);
 	if (ret < 0)
 		return ret;
 
 	freqreg = be32_to_cpu(dat.d32) & 0xFFFFFF;
 
-	freqreg = (u64) freqreg * (u64) (st->mclk_hz / 4);
-	do_div(freqreg, 1 << 27);
+	freqreg = (u64)freqreg * (u64)(st->mclk_hz / 4);
+	do_div(freqreg, BIT(27));
 
-	return sprintf(buf, "%d\n", (int) freqreg);
+	return sprintf(buf, "%d\n", (int)freqreg);
 }
 
 static ssize_t ad5933_store_frequency(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
+				      struct device_attribute *attr,
+				      const char *buf,
+				      size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad5933_state *st = iio_priv(indio_dev);
@@ -331,34 +306,37 @@ static ssize_t ad5933_store_frequency(struct device *dev,
 	if (val > AD5933_MAX_OUTPUT_FREQ_Hz)
 		return -EINVAL;
 
-	mutex_lock(&indio_dev->mlock);
+	if (!iio_device_claim_direct(indio_dev))
+		return -EBUSY;
+
 	ret = ad5933_set_freq(st, this_attr->address, val);
-	mutex_unlock(&indio_dev->mlock);
+
+	iio_device_release_direct(indio_dev);
 
 	return ret ? ret : len;
 }
 
-static IIO_DEVICE_ATTR(out_voltage0_freq_start, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(out_altvoltage0_frequency_start, 0644,
 			ad5933_show_frequency,
 			ad5933_store_frequency,
 			AD5933_REG_FREQ_START);
 
-static IIO_DEVICE_ATTR(out_voltage0_freq_increment, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(out_altvoltage0_frequency_increment, 0644,
 			ad5933_show_frequency,
 			ad5933_store_frequency,
 			AD5933_REG_FREQ_INC);
 
 static ssize_t ad5933_show(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
+			   struct device_attribute *attr,
+			   char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad5933_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret = 0, len = 0;
 
-	mutex_lock(&indio_dev->mlock);
-	switch ((u32) this_attr->address) {
+	mutex_lock(&st->lock);
+	switch ((u32)this_attr->address) {
 	case AD5933_OUT_RANGE:
 		len = sprintf(buf, "%u\n",
 			      st->range_avail[(st->ctrl_hb >> 1) & 0x3]);
@@ -386,14 +364,14 @@ static ssize_t ad5933_show(struct device *dev,
 		ret = -EINVAL;
 	}
 
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
 	return ret ? ret : len;
 }
 
 static ssize_t ad5933_store(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
+			    struct device_attribute *attr,
+			    const char *buf,
+			    size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad5933_state *st = iio_priv(indio_dev);
@@ -408,9 +386,13 @@ static ssize_t ad5933_store(struct device *dev,
 			return ret;
 	}
 
-	mutex_lock(&indio_dev->mlock);
-	switch ((u32) this_attr->address) {
+	if (!iio_device_claim_direct(indio_dev))
+		return -EBUSY;
+
+	mutex_lock(&st->lock);
+	switch ((u32)this_attr->address) {
 	case AD5933_OUT_RANGE:
+		ret = -EINVAL;
 		for (i = 0; i < 4; i++)
 			if (val == st->range_avail[i]) {
 				st->ctrl_hb &= ~AD5933_CTRL_RANGE(0x3);
@@ -418,7 +400,6 @@ static ssize_t ad5933_store(struct device *dev,
 				ret = ad5933_cmd(st, 0);
 				break;
 			}
-		ret = -EINVAL;
 		break;
 	case AD5933_IN_PGA_GAIN:
 		if (sysfs_streq(buf, "1")) {
@@ -432,18 +413,19 @@ static ssize_t ad5933_store(struct device *dev,
 		ret = ad5933_cmd(st, 0);
 		break;
 	case AD5933_OUT_SETTLING_CYCLES:
-		val = clamp(val, (u16)0, (u16)0x7FF);
+		val = clamp(val, (u16)0, (u16)0x7FC);
 		st->settling_cycles = val;
 
 		/* 2x, 4x handling, see datasheet */
-		if (val > 511)
-			val = (val >> 1) | (1 << 9);
-		else if (val > 1022)
+		if (val > 1022)
 			val = (val >> 2) | (3 << 9);
+		else if (val > 511)
+			val = (val >> 1) | BIT(9);
 
 		dat = cpu_to_be16(val);
 		ret = ad5933_i2c_write(st->client,
-				AD5933_REG_SETTLING_CYCLES, 2, (u8 *)&dat);
+				       AD5933_REG_SETTLING_CYCLES,
+				       2, (u8 *)&dat);
 		break;
 	case AD5933_FREQ_POINTS:
 		val = clamp(val, (u16)0, (u16)511);
@@ -457,52 +439,55 @@ static ssize_t ad5933_store(struct device *dev,
 		ret = -EINVAL;
 	}
 
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->lock);
+
+	iio_device_release_direct(indio_dev);
 	return ret ? ret : len;
 }
 
-static IIO_DEVICE_ATTR(out_voltage0_scale, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(out_altvoltage0_raw, 0644,
 			ad5933_show,
 			ad5933_store,
 			AD5933_OUT_RANGE);
 
-static IIO_DEVICE_ATTR(out_voltage0_scale_available, S_IRUGO,
+static IIO_DEVICE_ATTR(out_altvoltage0_scale_available, 0444,
 			ad5933_show,
 			NULL,
 			AD5933_OUT_RANGE_AVAIL);
 
-static IIO_DEVICE_ATTR(in_voltage0_scale, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(in_voltage0_scale, 0644,
 			ad5933_show,
 			ad5933_store,
 			AD5933_IN_PGA_GAIN);
 
-static IIO_DEVICE_ATTR(in_voltage0_scale_available, S_IRUGO,
+static IIO_DEVICE_ATTR(in_voltage0_scale_available, 0444,
 			ad5933_show,
 			NULL,
 			AD5933_IN_PGA_GAIN_AVAIL);
 
-static IIO_DEVICE_ATTR(out_voltage0_freq_points, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(out_altvoltage0_frequency_points, 0644,
 			ad5933_show,
 			ad5933_store,
 			AD5933_FREQ_POINTS);
 
-static IIO_DEVICE_ATTR(out_voltage0_settling_cycles, S_IRUGO | S_IWUSR,
+static IIO_DEVICE_ATTR(out_altvoltage0_settling_cycles, 0644,
 			ad5933_show,
 			ad5933_store,
 			AD5933_OUT_SETTLING_CYCLES);
 
-/* note:
+/*
+ * note:
  * ideally we would handle the scale attributes via the iio_info
  * (read|write)_raw methods, however this part is a untypical since we
  * don't create dedicated sysfs channel attributes for out0 and in0.
  */
 static struct attribute *ad5933_attributes[] = {
-	&iio_dev_attr_out_voltage0_scale.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_scale_available.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_freq_start.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_freq_increment.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_freq_points.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_settling_cycles.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_raw.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_scale_available.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_frequency_start.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_frequency_increment.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_frequency_points.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_settling_cycles.dev_attr.attr,
 	&iio_dev_attr_in_voltage0_scale.dev_attr.attr,
 	&iio_dev_attr_in_voltage0_scale_available.dev_attr.attr,
 	NULL
@@ -524,11 +509,9 @@ static int ad5933_read_raw(struct iio_dev *indio_dev,
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
-		mutex_lock(&indio_dev->mlock);
-		if (iio_buffer_enabled(indio_dev)) {
-			ret = -EBUSY;
-			goto out;
-		}
+		if (!iio_device_claim_direct(indio_dev))
+			return -EBUSY;
+
 		ret = ad5933_cmd(st, AD5933_CTRL_MEASURE_TEMP);
 		if (ret < 0)
 			goto out;
@@ -537,11 +520,12 @@ static int ad5933_read_raw(struct iio_dev *indio_dev,
 			goto out;
 
 		ret = ad5933_i2c_read(st->client,
-				AD5933_REG_TEMP_DATA, 2,
-				(u8 *)&dat);
+				      AD5933_REG_TEMP_DATA,
+				      2, (u8 *)&dat);
 		if (ret < 0)
 			goto out;
-		mutex_unlock(&indio_dev->mlock);
+
+		iio_device_release_direct(indio_dev);
 		*val = sign_extend32(be16_to_cpu(dat), 13);
 
 		return IIO_VAL_INT;
@@ -553,14 +537,13 @@ static int ad5933_read_raw(struct iio_dev *indio_dev,
 
 	return -EINVAL;
 out:
-	mutex_unlock(&indio_dev->mlock);
+	iio_device_release_direct(indio_dev);
 	return ret;
 }
 
 static const struct iio_info ad5933_info = {
-	.read_raw = &ad5933_read_raw,
+	.read_raw = ad5933_read_raw,
 	.attrs = &ad5933_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad5933_ring_preenable(struct iio_dev *indio_dev)
@@ -568,7 +551,8 @@ static int ad5933_ring_preenable(struct iio_dev *indio_dev)
 	struct ad5933_state *st = iio_priv(indio_dev);
 	int ret;
 
-	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
+	if (bitmap_empty(indio_dev->active_scan_mask,
+			 iio_get_masklength(indio_dev)))
 		return -EINVAL;
 
 	ret = ad5933_reset(st);
@@ -592,7 +576,8 @@ static int ad5933_ring_postenable(struct iio_dev *indio_dev)
 {
 	struct ad5933_state *st = iio_priv(indio_dev);
 
-	/* AD5933_CTRL_INIT_START_FREQ:
+	/*
+	 * AD5933_CTRL_INIT_START_FREQ:
 	 * High Q complex circuits require a long time to reach steady state.
 	 * To facilitate the measurement of such impedances, this mode allows
 	 * the user full control of the settling time requirement before
@@ -616,91 +601,76 @@ static int ad5933_ring_postdisable(struct iio_dev *indio_dev)
 }
 
 static const struct iio_buffer_setup_ops ad5933_ring_setup_ops = {
-	.preenable = &ad5933_ring_preenable,
-	.postenable = &ad5933_ring_postenable,
-	.postdisable = &ad5933_ring_postdisable,
+	.preenable = ad5933_ring_preenable,
+	.postenable = ad5933_ring_postenable,
+	.postdisable = ad5933_ring_postdisable,
 };
 
-static int ad5933_register_ring_funcs_and_init(struct iio_dev *indio_dev)
-{
-	struct iio_buffer *buffer;
-
-	buffer = iio_kfifo_allocate();
-	if (!buffer)
-		return -ENOMEM;
-
-	iio_device_attach_buffer(indio_dev, buffer);
-
-	/* Ring buffer functions - here trigger setup related */
-	indio_dev->setup_ops = &ad5933_ring_setup_ops;
-
-	indio_dev->modes |= INDIO_BUFFER_HARDWARE;
-
-	return 0;
-}
-
 static void ad5933_work(struct work_struct *work)
 {
 	struct ad5933_state *st = container_of(work,
 		struct ad5933_state, work.work);
 	struct iio_dev *indio_dev = i2c_get_clientdata(st->client);
-	signed short buf[2];
+	__be16 buf[2];
+	u16 val[2];
 	unsigned char status;
+	int ret;
 
-	mutex_lock(&indio_dev->mlock);
 	if (st->state == AD5933_CTRL_INIT_START_FREQ) {
 		/* start sweep */
 		ad5933_cmd(st, AD5933_CTRL_START_SWEEP);
 		st->state = AD5933_CTRL_START_SWEEP;
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
-		mutex_unlock(&indio_dev->mlock);
 		return;
 	}
 
-	ad5933_i2c_read(st->client, AD5933_REG_STATUS, 1, &status);
+	ret = ad5933_i2c_read(st->client, AD5933_REG_STATUS, 1, &status);
+	if (ret)
+		return;
 
 	if (status & AD5933_STAT_DATA_VALID) {
 		int scan_count = bitmap_weight(indio_dev->active_scan_mask,
-					       indio_dev->masklength);
-		ad5933_i2c_read(st->client,
-				test_bit(1, indio_dev->active_scan_mask) ?
-				AD5933_REG_REAL_DATA : AD5933_REG_IMAG_DATA,
-				scan_count * 2, (u8 *)buf);
+					       iio_get_masklength(indio_dev));
+		ret = ad5933_i2c_read(st->client,
+				      test_bit(1, indio_dev->active_scan_mask) ?
+				      AD5933_REG_REAL_DATA : AD5933_REG_IMAG_DATA,
+				      scan_count * 2, (u8 *)buf);
+		if (ret)
+			return;
 
 		if (scan_count == 2) {
-			buf[0] = be16_to_cpu(buf[0]);
-			buf[1] = be16_to_cpu(buf[1]);
+			val[0] = be16_to_cpu(buf[0]);
+			val[1] = be16_to_cpu(buf[1]);
 		} else {
-			buf[0] = be16_to_cpu(buf[0]);
+			val[0] = be16_to_cpu(buf[0]);
 		}
-		iio_push_to_buffers(indio_dev, buf);
+		iio_push_to_buffers(indio_dev, val);
 	} else {
 		/* no data available - try again later */
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
-		mutex_unlock(&indio_dev->mlock);
 		return;
 	}
 
 	if (status & AD5933_STAT_SWEEP_DONE) {
-		/* last sample received - power down do nothing until
-		 * the ring enable is toggled */
+		/*
+		 * last sample received - power down do
+		 * nothing until the ring enable is toggled
+		 */
 		ad5933_cmd(st, AD5933_CTRL_POWER_DOWN);
 	} else {
 		/* we just received a valid datum, move on to the next */
 		ad5933_cmd(st, AD5933_CTRL_INC_FREQ);
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
 	}
-
-	mutex_unlock(&indio_dev->mlock);
 }
 
-static int ad5933_probe(struct i2c_client *client,
-				   const struct i2c_device_id *id)
+static int ad5933_probe(struct i2c_client *client)
 {
-	int ret, voltage_uv = 0;
-	struct ad5933_platform_data *pdata = client->dev.platform_data;
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
+	int ret;
 	struct ad5933_state *st;
 	struct iio_dev *indio_dev;
+	unsigned long ext_clk_hz = 0;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
 	if (!indio_dev)
@@ -710,24 +680,23 @@ static int ad5933_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, indio_dev);
 	st->client = client;
 
-	if (!pdata)
-		pdata = &ad5933_default_pdata;
+	mutex_init(&st->lock);
 
-	st->reg = devm_regulator_get(&client->dev, "vcc");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ret;
-		voltage_uv = regulator_get_voltage(st->reg);
-	}
+	ret = devm_regulator_get_enable_read_voltage(&client->dev, "vdd");
+	if (ret < 0)
+		return dev_err_probe(&client->dev, ret, "failed to get vdd voltage\n");
+
+	st->vref_mv = ret / 1000;
 
-	if (voltage_uv)
-		st->vref_mv = voltage_uv / 1000;
-	else
-		st->vref_mv = pdata->vref_mv;
+	st->mclk = devm_clk_get_enabled(&client->dev, "mclk");
+	if (IS_ERR(st->mclk) && PTR_ERR(st->mclk) != -ENOENT)
+		return PTR_ERR(st->mclk);
 
-	if (pdata->ext_clk_Hz) {
-		st->mclk_hz = pdata->ext_clk_Hz;
+	if (!IS_ERR(st->mclk))
+		ext_clk_hz = clk_get_rate(st->mclk);
+
+	if (ext_clk_hz) {
+		st->mclk_hz = ext_clk_hz;
 		st->ctrl_lb = AD5933_CTRL_EXT_SYSCLK;
 	} else {
 		st->mclk_hz = AD5933_INT_OSC_FREQ_Hz;
@@ -738,67 +707,50 @@ static int ad5933_probe(struct i2c_client *client,
 	INIT_DELAYED_WORK(&st->work, ad5933_work);
 	st->poll_time_jiffies = msecs_to_jiffies(AD5933_POLL_TIME_ms);
 
-	indio_dev->dev.parent = &client->dev;
 	indio_dev->info = &ad5933_info;
 	indio_dev->name = id->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = ad5933_channels;
 	indio_dev->num_channels = ARRAY_SIZE(ad5933_channels);
 
-	ret = ad5933_register_ring_funcs_and_init(indio_dev);
+	ret = devm_iio_kfifo_buffer_setup(&client->dev, indio_dev,
+					  &ad5933_ring_setup_ops);
 	if (ret)
-		goto error_disable_reg;
+		return ret;
 
 	ret = ad5933_setup(st);
 	if (ret)
-		goto error_unreg_ring;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_unreg_ring;
-
-	return 0;
-
-error_unreg_ring:
-	iio_kfifo_free(indio_dev->buffer);
-error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
-
-	return ret;
-}
-
-static int ad5933_remove(struct i2c_client *client)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-	struct ad5933_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	iio_kfifo_free(indio_dev->buffer);
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+		return ret;
 
-	return 0;
+	return devm_iio_device_register(&client->dev, indio_dev);
 }
 
 static const struct i2c_device_id ad5933_id[] = {
-	{ "ad5933", 0 },
-	{ "ad5934", 0 },
-	{}
+	{ "ad5933" },
+	{ "ad5934" },
+	{ }
 };
 
 MODULE_DEVICE_TABLE(i2c, ad5933_id);
 
+static const struct of_device_id ad5933_of_match[] = {
+	{ .compatible = "adi,ad5933" },
+	{ .compatible = "adi,ad5934" },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(of, ad5933_of_match);
+
 static struct i2c_driver ad5933_driver = {
 	.driver = {
 		.name = "ad5933",
+		.of_match_table = ad5933_of_match,
 	},
 	.probe = ad5933_probe,
-	.remove = ad5933_remove,
 	.id_table = ad5933_id,
 };
 module_i2c_driver(ad5933_driver);
 
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
 MODULE_DESCRIPTION("Analog Devices AD5933 Impedance Conv. Network Analyzer");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.h b/drivers/staging/iio/impedance-analyzer/ad5933.h
deleted file mode 100644
index b140e42d67cf..000000000000
--- a/drivers/staging/iio/impedance-analyzer/ad5933.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * AD5933 AD5934 Impedance Converter, Network Analyzer
- *
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#ifndef IIO_ADC_AD5933_H_
-#define IIO_ADC_AD5933_H_
-
-/*
- * TODO: struct ad5933_platform_data needs to go into include/linux/iio
- */
-
-/**
- * struct ad5933_platform_data - platform specific data
- * @ext_clk_Hz:		the external clock frequency in Hz, if not set
- *			the driver uses the internal clock (16.776 MHz)
- * @vref_mv:		the external reference voltage in millivolt
- */
-
-struct ad5933_platform_data {
-	unsigned long			ext_clk_Hz;
-	unsigned short			vref_mv;
-};
-
-#endif /* IIO_ADC_AD5933_H_ */
diff --git a/drivers/staging/iio/light/Kconfig b/drivers/staging/iio/light/Kconfig
deleted file mode 100644
index ca8d6e66c899..000000000000
--- a/drivers/staging/iio/light/Kconfig
+++ /dev/null
@@ -1,43 +0,0 @@
-#
-# Light sensors
-#
-menu "Light sensors"
-
-config SENSORS_ISL29018
-	tristate "ISL 29018 light and proximity sensor"
-	depends on I2C
-	select REGMAP_I2C
-	default n
-	help
-	 If you say yes here you get support for ambient light sensing and
-	 proximity infrared sensing from Intersil ISL29018.
-	 This driver will provide the measurements of ambient light intensity
-	 in lux, proximity infrared sensing and normal infrared sensing.
-	 Data from sensor is accessible via sysfs.
-
-config SENSORS_ISL29028
-	tristate "Intersil ISL29028 Concurrent Light and Proximity Sensor"
-	depends on I2C
-	select REGMAP_I2C
-	help
-	 Provides driver for the Intersil's ISL29028 device.
-	 This driver supports the sysfs interface to get the ALS, IR intensity,
-	 Proximity value via iio. The ISL29028 provides the concurrent sensing
-	 of ambient light and proximity.
-
-config TSL2583
-	tristate "TAOS TSL2580, TSL2581 and TSL2583 light-to-digital converters"
-	depends on I2C
-	help
-	 Provides support for the TAOS tsl2580, tsl2581 and tsl2583 devices.
-	 Access ALS data via iio, sysfs.
-
-config TSL2x7x
-	tristate "TAOS TSL/TMD2x71 and TSL/TMD2x72 Family of light and proximity sensors"
-	depends on I2C
-	help
-	 Support for: tsl2571, tsl2671, tmd2671, tsl2771, tmd2771, tsl2572, tsl2672,
-	 tmd2672, tsl2772, tmd2772 devices.
-	 Provides iio_events and direct access via sysfs.
-
-endmenu
diff --git a/drivers/staging/iio/light/Makefile b/drivers/staging/iio/light/Makefile
deleted file mode 100644
index 9960fdf7c15b..000000000000
--- a/drivers/staging/iio/light/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for industrial I/O Light sensors
-#
-
-obj-$(CONFIG_SENSORS_ISL29018)	+= isl29018.o
-obj-$(CONFIG_SENSORS_ISL29028)	+= isl29028.o
-obj-$(CONFIG_TSL2583)	+= tsl2583.o
-obj-$(CONFIG_TSL2x7x)	+= tsl2x7x_core.o
diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c
deleted file mode 100644
index 019ba5245c23..000000000000
--- a/drivers/staging/iio/light/isl29018.c
+++ /dev/null
@@ -1,849 +0,0 @@
-/*
- * A iio driver for the light sensor ISL 29018/29023/29035.
- *
- * IIO driver for monitoring ambient light intensity in luxi, proximity
- * sensing and infrared sensing.
- *
- * Copyright (c) 2010, NVIDIA Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA	02110-1301, USA.
- */
-
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/regmap.h>
-#include <linux/slab.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/acpi.h>
-
-#define CONVERSION_TIME_MS		100
-
-#define ISL29018_REG_ADD_COMMAND1	0x00
-#define COMMMAND1_OPMODE_SHIFT		5
-#define COMMMAND1_OPMODE_MASK		(7 << COMMMAND1_OPMODE_SHIFT)
-#define COMMMAND1_OPMODE_POWER_DOWN	0
-#define COMMMAND1_OPMODE_ALS_ONCE	1
-#define COMMMAND1_OPMODE_IR_ONCE	2
-#define COMMMAND1_OPMODE_PROX_ONCE	3
-
-#define ISL29018_REG_ADD_COMMANDII	0x01
-#define COMMANDII_RESOLUTION_SHIFT	2
-#define COMMANDII_RESOLUTION_MASK	(0x3 << COMMANDII_RESOLUTION_SHIFT)
-
-#define COMMANDII_RANGE_SHIFT		0
-#define COMMANDII_RANGE_MASK		(0x3 << COMMANDII_RANGE_SHIFT)
-
-#define COMMANDII_SCHEME_SHIFT		7
-#define COMMANDII_SCHEME_MASK		(0x1 << COMMANDII_SCHEME_SHIFT)
-
-#define ISL29018_REG_ADD_DATA_LSB	0x02
-#define ISL29018_REG_ADD_DATA_MSB	0x03
-
-#define ISL29018_REG_TEST		0x08
-#define ISL29018_TEST_SHIFT		0
-#define ISL29018_TEST_MASK		(0xFF << ISL29018_TEST_SHIFT)
-
-#define ISL29035_REG_DEVICE_ID		0x0F
-#define ISL29035_DEVICE_ID_SHIFT	0x03
-#define ISL29035_DEVICE_ID_MASK		(0x7 << ISL29035_DEVICE_ID_SHIFT)
-#define ISL29035_DEVICE_ID		0x5
-#define ISL29035_BOUT_SHIFT		0x07
-#define ISL29035_BOUT_MASK		(0x01 << ISL29035_BOUT_SHIFT)
-
-#define ISL29018_INT_TIME_AVAIL		"0.090000 0.005630 0.000351 0.000021"
-#define ISL29023_INT_TIME_AVAIL		"0.090000 0.005600 0.000352 0.000022"
-#define ISL29035_INT_TIME_AVAIL		"0.105000 0.006500 0.000410 0.000025"
-
-static const char * const int_time_avail[] = {
-	ISL29018_INT_TIME_AVAIL,
-	ISL29023_INT_TIME_AVAIL,
-	ISL29035_INT_TIME_AVAIL,
-};
-
-enum isl29018_int_time {
-	ISL29018_INT_TIME_16,
-	ISL29018_INT_TIME_12,
-	ISL29018_INT_TIME_8,
-	ISL29018_INT_TIME_4,
-};
-
-static const unsigned int isl29018_int_utimes[3][4] = {
-	{90000, 5630, 351, 21},
-	{90000, 5600, 352, 22},
-	{105000, 6500, 410, 25},
-};
-
-static const struct isl29018_scale {
-	unsigned int scale;
-	unsigned int uscale;
-} isl29018_scales[4][4] = {
-	{ {0, 15258}, {0, 61035}, {0, 244140}, {0, 976562} },
-	{ {0, 244140}, {0, 976562}, {3, 906250}, {15, 625000} },
-	{ {3, 906250}, {15, 625000}, {62, 500000}, {250, 0} },
-	{ {62, 500000}, {250, 0}, {1000, 0}, {4000, 0} }
-};
-
-struct isl29018_chip {
-	struct device		*dev;
-	struct regmap		*regmap;
-	struct mutex		lock;
-	int			type;
-	unsigned int		calibscale;
-	unsigned int		ucalibscale;
-	unsigned int		int_time;
-	struct isl29018_scale	scale;
-	int			prox_scheme;
-	bool			suspended;
-};
-
-static int isl29018_set_integration_time(struct isl29018_chip *chip,
-					 unsigned int utime)
-{
-	int i, ret;
-	unsigned int int_time, new_int_time;
-	struct isl29018_scale new_scale;
-
-	for (i = 0; i < ARRAY_SIZE(isl29018_int_utimes[chip->type]); ++i) {
-		if (utime == isl29018_int_utimes[chip->type][i]) {
-			new_int_time = i;
-			new_scale = isl29018_scales[new_int_time][0];
-			break;
-		}
-	}
-
-	if (i >= ARRAY_SIZE(isl29018_int_utimes[chip->type]))
-		return -EINVAL;
-
-	ret = regmap_update_bits(chip->regmap, ISL29018_REG_ADD_COMMANDII,
-				 COMMANDII_RESOLUTION_MASK,
-				 i << COMMANDII_RESOLUTION_SHIFT);
-	if (ret < 0)
-		return ret;
-
-	/* keep the same range when integration time changes */
-	int_time = chip->int_time;
-	for (i = 0; i < ARRAY_SIZE(isl29018_scales[int_time]); ++i) {
-		if (chip->scale.scale == isl29018_scales[int_time][i].scale &&
-		    chip->scale.uscale == isl29018_scales[int_time][i].uscale) {
-			chip->scale = isl29018_scales[new_int_time][i];
-			break;
-		}
-	}
-	chip->int_time = new_int_time;
-
-	return 0;
-}
-
-static int isl29018_set_scale(struct isl29018_chip *chip, int scale, int uscale)
-{
-	int i, ret;
-	struct isl29018_scale new_scale;
-
-	for (i = 0; i < ARRAY_SIZE(isl29018_scales[chip->int_time]); ++i) {
-		if (scale == isl29018_scales[chip->int_time][i].scale &&
-		    uscale == isl29018_scales[chip->int_time][i].uscale) {
-			new_scale = isl29018_scales[chip->int_time][i];
-			break;
-		}
-	}
-
-	if (i >= ARRAY_SIZE(isl29018_scales[chip->int_time]))
-		return -EINVAL;
-
-	ret = regmap_update_bits(chip->regmap, ISL29018_REG_ADD_COMMANDII,
-				 COMMANDII_RANGE_MASK,
-				 i << COMMANDII_RANGE_SHIFT);
-	if (ret < 0)
-		return ret;
-
-	chip->scale = new_scale;
-
-	return 0;
-}
-
-static int isl29018_read_sensor_input(struct isl29018_chip *chip, int mode)
-{
-	int status;
-	unsigned int lsb;
-	unsigned int msb;
-
-	/* Set mode */
-	status = regmap_write(chip->regmap, ISL29018_REG_ADD_COMMAND1,
-			mode << COMMMAND1_OPMODE_SHIFT);
-	if (status) {
-		dev_err(chip->dev,
-			"Error in setting operating mode err %d\n", status);
-		return status;
-	}
-	msleep(CONVERSION_TIME_MS);
-	status = regmap_read(chip->regmap, ISL29018_REG_ADD_DATA_LSB, &lsb);
-	if (status < 0) {
-		dev_err(chip->dev,
-			"Error in reading LSB DATA with err %d\n", status);
-		return status;
-	}
-
-	status = regmap_read(chip->regmap, ISL29018_REG_ADD_DATA_MSB, &msb);
-	if (status < 0) {
-		dev_err(chip->dev,
-			"Error in reading MSB DATA with error %d\n", status);
-		return status;
-	}
-	dev_vdbg(chip->dev, "MSB 0x%x and LSB 0x%x\n", msb, lsb);
-
-	return (msb << 8) | lsb;
-}
-
-static int isl29018_read_lux(struct isl29018_chip *chip, int *lux)
-{
-	int lux_data;
-	unsigned int data_x_range;
-
-	lux_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_ALS_ONCE);
-
-	if (lux_data < 0)
-		return lux_data;
-
-	data_x_range = lux_data * chip->scale.scale +
-		       lux_data * chip->scale.uscale / 1000000;
-	*lux = data_x_range * chip->calibscale +
-	       data_x_range * chip->ucalibscale / 1000000;
-
-	return 0;
-}
-
-static int isl29018_read_ir(struct isl29018_chip *chip, int *ir)
-{
-	int ir_data;
-
-	ir_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_IR_ONCE);
-
-	if (ir_data < 0)
-		return ir_data;
-
-	*ir = ir_data;
-
-	return 0;
-}
-
-static int isl29018_read_proximity_ir(struct isl29018_chip *chip, int scheme,
-		int *near_ir)
-{
-	int status;
-	int prox_data = -1;
-	int ir_data = -1;
-
-	/* Do proximity sensing with required scheme */
-	status = regmap_update_bits(chip->regmap, ISL29018_REG_ADD_COMMANDII,
-			COMMANDII_SCHEME_MASK,
-			scheme << COMMANDII_SCHEME_SHIFT);
-	if (status) {
-		dev_err(chip->dev, "Error in setting operating mode\n");
-		return status;
-	}
-
-	prox_data = isl29018_read_sensor_input(chip,
-					COMMMAND1_OPMODE_PROX_ONCE);
-	if (prox_data < 0)
-		return prox_data;
-
-	if (scheme == 1) {
-		*near_ir = prox_data;
-		return 0;
-	}
-
-	ir_data = isl29018_read_sensor_input(chip, COMMMAND1_OPMODE_IR_ONCE);
-
-	if (ir_data < 0)
-		return ir_data;
-
-	if (prox_data >= ir_data)
-		*near_ir = prox_data - ir_data;
-	else
-		*near_ir = 0;
-
-	return 0;
-}
-
-static ssize_t show_scale_available(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct isl29018_chip *chip = iio_priv(indio_dev);
-	int i, len = 0;
-
-	for (i = 0; i < ARRAY_SIZE(isl29018_scales[chip->int_time]); ++i)
-		len += sprintf(buf + len, "%d.%06d ",
-			       isl29018_scales[chip->int_time][i].scale,
-			       isl29018_scales[chip->int_time][i].uscale);
-
-	buf[len - 1] = '\n';
-
-	return len;
-}
-
-static ssize_t show_int_time_available(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct isl29018_chip *chip = iio_priv(indio_dev);
-	int i, len = 0;
-
-	for (i = 0; i < ARRAY_SIZE(isl29018_int_utimes[chip->type]); ++i)
-		len += sprintf(buf + len, "0.%06d ",
-			       isl29018_int_utimes[chip->type][i]);
-
-	buf[len - 1] = '\n';
-
-	return len;
-}
-
-/* proximity scheme */
-static ssize_t show_prox_infrared_suppression(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct isl29018_chip *chip = iio_priv(indio_dev);
-
-	/* return the "proximity scheme" i.e. if the chip does on chip
-	infrared suppression (1 means perform on chip suppression) */
-	return sprintf(buf, "%d\n", chip->prox_scheme);
-}
-
-static ssize_t store_prox_infrared_suppression(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct isl29018_chip *chip = iio_priv(indio_dev);
-	int val;
-
-	if (kstrtoint(buf, 10, &val))
-		return -EINVAL;
-	if (!(val == 0 || val == 1)) {
-		dev_err(dev, "The mode is not supported\n");
-		return -EINVAL;
-	}
-
-	/* get the  "proximity scheme" i.e. if the chip does on chip
-	infrared suppression (1 means perform on chip suppression) */
-	mutex_lock(&chip->lock);
-	chip->prox_scheme = val;
-	mutex_unlock(&chip->lock);
-
-	return count;
-}
-
-/* Channel IO */
-static int isl29018_write_raw(struct iio_dev *indio_dev,
-			      struct iio_chan_spec const *chan,
-			      int val,
-			      int val2,
-			      long mask)
-{
-	struct isl29018_chip *chip = iio_priv(indio_dev);
-	int ret = -EINVAL;
-
-	mutex_lock(&chip->lock);
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBSCALE:
-		if (chan->type == IIO_LIGHT) {
-			chip->calibscale = val;
-			chip->ucalibscale = val2;
-			ret = 0;
-		}
-		break;
-	case IIO_CHAN_INFO_INT_TIME:
-		if (chan->type == IIO_LIGHT) {
-			if (val != 0) {
-				mutex_unlock(&chip->lock);
-				return -EINVAL;
-			}
-			ret = isl29018_set_integration_time(chip, val2);
-		}
-		break;
-	case IIO_CHAN_INFO_SCALE:
-		if (chan->type == IIO_LIGHT)
-			ret = isl29018_set_scale(chip, val, val2);
-		break;
-	default:
-		break;
-	}
-	mutex_unlock(&chip->lock);
-
-	return ret;
-}
-
-static int isl29018_read_raw(struct iio_dev *indio_dev,
-			     struct iio_chan_spec const *chan,
-			     int *val,
-			     int *val2,
-			     long mask)
-{
-	int ret = -EINVAL;
-	struct isl29018_chip *chip = iio_priv(indio_dev);
-
-	mutex_lock(&chip->lock);
-	if (chip->suspended) {
-		mutex_unlock(&chip->lock);
-		return -EBUSY;
-	}
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-	case IIO_CHAN_INFO_PROCESSED:
-		switch (chan->type) {
-		case IIO_LIGHT:
-			ret = isl29018_read_lux(chip, val);
-			break;
-		case IIO_INTENSITY:
-			ret = isl29018_read_ir(chip, val);
-			break;
-		case IIO_PROXIMITY:
-			ret = isl29018_read_proximity_ir(chip,
-					chip->prox_scheme, val);
-			break;
-		default:
-			break;
-		}
-		if (!ret)
-			ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_INT_TIME:
-		if (chan->type == IIO_LIGHT) {
-			*val = 0;
-			*val2 = isl29018_int_utimes[chip->type][chip->int_time];
-			ret = IIO_VAL_INT_PLUS_MICRO;
-		}
-		break;
-	case IIO_CHAN_INFO_SCALE:
-		if (chan->type == IIO_LIGHT) {
-			*val = chip->scale.scale;
-			*val2 = chip->scale.uscale;
-			ret = IIO_VAL_INT_PLUS_MICRO;
-		}
-		break;
-	case IIO_CHAN_INFO_CALIBSCALE:
-		if (chan->type == IIO_LIGHT) {
-			*val = chip->calibscale;
-			*val2 = chip->ucalibscale;
-			ret = IIO_VAL_INT_PLUS_MICRO;
-		}
-		break;
-	default:
-		break;
-	}
-	mutex_unlock(&chip->lock);
-	return ret;
-}
-
-#define ISL29018_LIGHT_CHANNEL {					\
-	.type = IIO_LIGHT,						\
-	.indexed = 1,							\
-	.channel = 0,							\
-	.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |		\
-	BIT(IIO_CHAN_INFO_CALIBSCALE) |					\
-	BIT(IIO_CHAN_INFO_SCALE) |					\
-	BIT(IIO_CHAN_INFO_INT_TIME),					\
-}
-
-#define ISL29018_IR_CHANNEL {						\
-	.type = IIO_INTENSITY,						\
-	.modified = 1,							\
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),			\
-	.channel2 = IIO_MOD_LIGHT_IR,					\
-}
-
-#define ISL29018_PROXIMITY_CHANNEL {					\
-	.type = IIO_PROXIMITY,						\
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),			\
-}
-
-static const struct iio_chan_spec isl29018_channels[] = {
-	ISL29018_LIGHT_CHANNEL,
-	ISL29018_IR_CHANNEL,
-	ISL29018_PROXIMITY_CHANNEL,
-};
-
-static const struct iio_chan_spec isl29023_channels[] = {
-	ISL29018_LIGHT_CHANNEL,
-	ISL29018_IR_CHANNEL,
-};
-
-static IIO_DEVICE_ATTR(in_illuminance_integration_time_available, S_IRUGO,
-		       show_int_time_available, NULL, 0);
-static IIO_DEVICE_ATTR(in_illuminance_scale_available, S_IRUGO,
-		      show_scale_available, NULL, 0);
-static IIO_DEVICE_ATTR(proximity_on_chip_ambient_infrared_suppression,
-					S_IRUGO | S_IWUSR,
-					show_prox_infrared_suppression,
-					store_prox_infrared_suppression, 0);
-
-#define ISL29018_DEV_ATTR(name) (&iio_dev_attr_##name.dev_attr.attr)
-
-static struct attribute *isl29018_attributes[] = {
-	ISL29018_DEV_ATTR(in_illuminance_scale_available),
-	ISL29018_DEV_ATTR(in_illuminance_integration_time_available),
-	ISL29018_DEV_ATTR(proximity_on_chip_ambient_infrared_suppression),
-	NULL
-};
-
-static struct attribute *isl29023_attributes[] = {
-	ISL29018_DEV_ATTR(in_illuminance_scale_available),
-	ISL29018_DEV_ATTR(in_illuminance_integration_time_available),
-	NULL
-};
-
-static const struct attribute_group isl29018_group = {
-	.attrs = isl29018_attributes,
-};
-
-static const struct attribute_group isl29023_group = {
-	.attrs = isl29023_attributes,
-};
-
-static int isl29035_detect(struct isl29018_chip *chip)
-{
-	int status;
-	unsigned int id;
-
-	status = regmap_read(chip->regmap, ISL29035_REG_DEVICE_ID, &id);
-	if (status < 0) {
-		dev_err(chip->dev,
-			"Error reading ID register with error %d\n",
-			status);
-		return status;
-	}
-
-	id = (id & ISL29035_DEVICE_ID_MASK) >> ISL29035_DEVICE_ID_SHIFT;
-
-	if (id != ISL29035_DEVICE_ID)
-		return -ENODEV;
-
-	/* clear out brownout bit */
-	return regmap_update_bits(chip->regmap, ISL29035_REG_DEVICE_ID,
-				  ISL29035_BOUT_MASK, 0);
-}
-
-enum {
-	isl29018,
-	isl29023,
-	isl29035,
-};
-
-static int isl29018_chip_init(struct isl29018_chip *chip)
-{
-	int status;
-
-	if (chip->type == isl29035) {
-		status = isl29035_detect(chip);
-		if (status < 0)
-			return status;
-	}
-
-	/* Code added per Intersil Application Note 1534:
-	 *     When VDD sinks to approximately 1.8V or below, some of
-	 * the part's registers may change their state. When VDD
-	 * recovers to 2.25V (or greater), the part may thus be in an
-	 * unknown mode of operation. The user can return the part to
-	 * a known mode of operation either by (a) setting VDD = 0V for
-	 * 1 second or more and then powering back up with a slew rate
-	 * of 0.5V/ms or greater, or (b) via I2C disable all ALS/PROX
-	 * conversions, clear the test registers, and then rewrite all
-	 * registers to the desired values.
-	 * ...
-	 * FOR ISL29011, ISL29018, ISL29021, ISL29023
-	 * 1. Write 0x00 to register 0x08 (TEST)
-	 * 2. Write 0x00 to register 0x00 (CMD1)
-	 * 3. Rewrite all registers to the desired values
-	 *
-	 * ISL29018 Data Sheet (FN6619.1, Feb 11, 2010) essentially says
-	 * the same thing EXCEPT the data sheet asks for a 1ms delay after
-	 * writing the CMD1 register.
-	 */
-	status = regmap_write(chip->regmap, ISL29018_REG_TEST, 0x0);
-	if (status < 0) {
-		dev_err(chip->dev, "Failed to clear isl29018 TEST reg.(%d)\n",
-			status);
-		return status;
-	}
-
-	/* See Intersil AN1534 comments above.
-	 * "Operating Mode" (COMMAND1) register is reprogrammed when
-	 * data is read from the device.
-	 */
-	status = regmap_write(chip->regmap, ISL29018_REG_ADD_COMMAND1, 0);
-	if (status < 0) {
-		dev_err(chip->dev, "Failed to clear isl29018 CMD1 reg.(%d)\n",
-			status);
-		return status;
-	}
-
-	usleep_range(1000, 2000);	/* per data sheet, page 10 */
-
-	/* set defaults */
-	status = isl29018_set_scale(chip, chip->scale.scale,
-				    chip->scale.uscale);
-	if (status < 0) {
-		dev_err(chip->dev, "Init of isl29018 fails\n");
-		return status;
-	}
-
-	status = isl29018_set_integration_time(chip,
-			isl29018_int_utimes[chip->type][chip->int_time]);
-	if (status < 0) {
-		dev_err(chip->dev, "Init of isl29018 fails\n");
-		return status;
-	}
-
-	return 0;
-}
-
-static const struct iio_info isl29018_info = {
-	.attrs = &isl29018_group,
-	.driver_module = THIS_MODULE,
-	.read_raw = &isl29018_read_raw,
-	.write_raw = &isl29018_write_raw,
-};
-
-static const struct iio_info isl29023_info = {
-	.attrs = &isl29023_group,
-	.driver_module = THIS_MODULE,
-	.read_raw = &isl29018_read_raw,
-	.write_raw = &isl29018_write_raw,
-};
-
-static bool is_volatile_reg(struct device *dev, unsigned int reg)
-{
-	switch (reg) {
-	case ISL29018_REG_ADD_DATA_LSB:
-	case ISL29018_REG_ADD_DATA_MSB:
-	case ISL29018_REG_ADD_COMMAND1:
-	case ISL29018_REG_TEST:
-	case ISL29035_REG_DEVICE_ID:
-		return true;
-	default:
-		return false;
-	}
-}
-
-/*
- * isl29018_regmap_config: regmap configuration.
- * Use RBTREE mechanism for caching.
- */
-static const struct regmap_config isl29018_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.volatile_reg = is_volatile_reg,
-	.max_register = ISL29018_REG_TEST,
-	.num_reg_defaults_raw = ISL29018_REG_TEST + 1,
-	.cache_type = REGCACHE_RBTREE,
-};
-
-/* isl29035_regmap_config: regmap configuration for ISL29035 */
-static const struct regmap_config isl29035_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.volatile_reg = is_volatile_reg,
-	.max_register = ISL29035_REG_DEVICE_ID,
-	.num_reg_defaults_raw = ISL29035_REG_DEVICE_ID + 1,
-	.cache_type = REGCACHE_RBTREE,
-};
-
-struct chip_info {
-	const struct iio_chan_spec *channels;
-	int num_channels;
-	const struct iio_info *indio_info;
-	const struct regmap_config *regmap_cfg;
-};
-
-static const struct chip_info chip_info_tbl[] = {
-	[isl29018] = {
-		.channels = isl29018_channels,
-		.num_channels = ARRAY_SIZE(isl29018_channels),
-		.indio_info = &isl29018_info,
-		.regmap_cfg = &isl29018_regmap_config,
-	},
-	[isl29023] = {
-		.channels = isl29023_channels,
-		.num_channels = ARRAY_SIZE(isl29023_channels),
-		.indio_info = &isl29023_info,
-		.regmap_cfg = &isl29018_regmap_config,
-	},
-	[isl29035] = {
-		.channels = isl29023_channels,
-		.num_channels = ARRAY_SIZE(isl29023_channels),
-		.indio_info = &isl29023_info,
-		.regmap_cfg = &isl29035_regmap_config,
-	},
-};
-
-static const char *isl29018_match_acpi_device(struct device *dev, int *data)
-{
-	const struct acpi_device_id *id;
-
-	id = acpi_match_device(dev->driver->acpi_match_table, dev);
-
-	if (!id)
-		return NULL;
-
-	*data = (int) id->driver_data;
-
-	return dev_name(dev);
-}
-
-static int isl29018_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
-{
-	struct isl29018_chip *chip;
-	struct iio_dev *indio_dev;
-	int err;
-	const char *name = NULL;
-	int dev_id = 0;
-
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
-	if (indio_dev == NULL) {
-		dev_err(&client->dev, "iio allocation fails\n");
-		return -ENOMEM;
-	}
-	chip = iio_priv(indio_dev);
-
-	i2c_set_clientdata(client, indio_dev);
-	chip->dev = &client->dev;
-
-	if (id) {
-		name = id->name;
-		dev_id = id->driver_data;
-	}
-
-	if (ACPI_HANDLE(&client->dev))
-		name = isl29018_match_acpi_device(&client->dev, &dev_id);
-
-	mutex_init(&chip->lock);
-
-	chip->type = dev_id;
-	chip->calibscale = 1;
-	chip->ucalibscale = 0;
-	chip->int_time = ISL29018_INT_TIME_16;
-	chip->scale = isl29018_scales[chip->int_time][0];
-	chip->suspended = false;
-
-	chip->regmap = devm_regmap_init_i2c(client,
-				chip_info_tbl[dev_id].regmap_cfg);
-	if (IS_ERR(chip->regmap)) {
-		err = PTR_ERR(chip->regmap);
-		dev_err(chip->dev, "regmap initialization failed: %d\n", err);
-		return err;
-	}
-
-	err = isl29018_chip_init(chip);
-	if (err)
-		return err;
-
-	indio_dev->info = chip_info_tbl[dev_id].indio_info;
-	indio_dev->channels = chip_info_tbl[dev_id].channels;
-	indio_dev->num_channels = chip_info_tbl[dev_id].num_channels;
-	indio_dev->name = name;
-	indio_dev->dev.parent = &client->dev;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	err = devm_iio_device_register(&client->dev, indio_dev);
-	if (err) {
-		dev_err(&client->dev, "iio registration fails\n");
-		return err;
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int isl29018_suspend(struct device *dev)
-{
-	struct isl29018_chip *chip = iio_priv(dev_get_drvdata(dev));
-
-	mutex_lock(&chip->lock);
-
-	/* Since this driver uses only polling commands, we are by default in
-	 * auto shutdown (ie, power-down) mode.
-	 * So we do not have much to do here.
-	 */
-	chip->suspended = true;
-
-	mutex_unlock(&chip->lock);
-	return 0;
-}
-
-static int isl29018_resume(struct device *dev)
-{
-	struct isl29018_chip *chip = iio_priv(dev_get_drvdata(dev));
-	int err;
-
-	mutex_lock(&chip->lock);
-
-	err = isl29018_chip_init(chip);
-	if (!err)
-		chip->suspended = false;
-
-	mutex_unlock(&chip->lock);
-	return err;
-}
-
-static SIMPLE_DEV_PM_OPS(isl29018_pm_ops, isl29018_suspend, isl29018_resume);
-#define ISL29018_PM_OPS (&isl29018_pm_ops)
-#else
-#define ISL29018_PM_OPS NULL
-#endif
-
-static const struct acpi_device_id isl29018_acpi_match[] = {
-	{"ISL29018", isl29018},
-	{"ISL29023", isl29023},
-	{"ISL29035", isl29035},
-	{},
-};
-MODULE_DEVICE_TABLE(acpi, isl29018_acpi_match);
-
-static const struct i2c_device_id isl29018_id[] = {
-	{"isl29018", isl29018},
-	{"isl29023", isl29023},
-	{"isl29035", isl29035},
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, isl29018_id);
-
-static const struct of_device_id isl29018_of_match[] = {
-	{ .compatible = "isil,isl29018", },
-	{ .compatible = "isil,isl29023", },
-	{ .compatible = "isil,isl29035", },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, isl29018_of_match);
-
-static struct i2c_driver isl29018_driver = {
-	.class	= I2C_CLASS_HWMON,
-	.driver	 = {
-			.name = "isl29018",
-			.acpi_match_table = ACPI_PTR(isl29018_acpi_match),
-			.pm = ISL29018_PM_OPS,
-			.of_match_table = isl29018_of_match,
-		    },
-	.probe	 = isl29018_probe,
-	.id_table = isl29018_id,
-};
-module_i2c_driver(isl29018_driver);
-
-MODULE_DESCRIPTION("ISL29018 Ambient Light Sensor driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c
deleted file mode 100644
index cd6f2727aa58..000000000000
--- a/drivers/staging/iio/light/isl29028.c
+++ /dev/null
@@ -1,561 +0,0 @@
-/*
- * IIO driver for the light sensor ISL29028.
- * ISL29028 is Concurrent Ambient Light and Proximity Sensor
- *
- * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/regmap.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-#define CONVERSION_TIME_MS		100
-
-#define ISL29028_REG_CONFIGURE		0x01
-
-#define CONFIGURE_ALS_IR_MODE_ALS	0
-#define CONFIGURE_ALS_IR_MODE_IR	BIT(0)
-#define CONFIGURE_ALS_IR_MODE_MASK	BIT(0)
-
-#define CONFIGURE_ALS_RANGE_LOW_LUX	0
-#define CONFIGURE_ALS_RANGE_HIGH_LUX	BIT(1)
-#define CONFIGURE_ALS_RANGE_MASK	BIT(1)
-
-#define CONFIGURE_ALS_DIS		0
-#define CONFIGURE_ALS_EN		BIT(2)
-#define CONFIGURE_ALS_EN_MASK		BIT(2)
-
-#define CONFIGURE_PROX_DRIVE		BIT(3)
-
-#define CONFIGURE_PROX_SLP_SH		4
-#define CONFIGURE_PROX_SLP_MASK		(7 << CONFIGURE_PROX_SLP_SH)
-
-#define CONFIGURE_PROX_EN		BIT(7)
-#define CONFIGURE_PROX_EN_MASK		BIT(7)
-
-#define ISL29028_REG_INTERRUPT		0x02
-
-#define ISL29028_REG_PROX_DATA		0x08
-#define ISL29028_REG_ALSIR_L		0x09
-#define ISL29028_REG_ALSIR_U		0x0A
-
-#define ISL29028_REG_TEST1_MODE		0x0E
-#define ISL29028_REG_TEST2_MODE		0x0F
-
-#define ISL29028_NUM_REGS		(ISL29028_REG_TEST2_MODE + 1)
-
-enum als_ir_mode {
-	MODE_NONE = 0,
-	MODE_ALS,
-	MODE_IR
-};
-
-struct isl29028_chip {
-	struct device		*dev;
-	struct mutex		lock;
-	struct regmap		*regmap;
-
-	unsigned int		prox_sampling;
-	bool			enable_prox;
-
-	int			lux_scale;
-	int			als_ir_mode;
-};
-
-static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
-			unsigned int sampling)
-{
-	static unsigned int prox_period[] = {800, 400, 200, 100, 75, 50, 12, 0};
-	int sel;
-	unsigned int period = DIV_ROUND_UP(1000, sampling);
-
-	for (sel = 0; sel < ARRAY_SIZE(prox_period); ++sel) {
-		if (period >= prox_period[sel])
-			break;
-	}
-	return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_PROX_SLP_MASK, sel << CONFIGURE_PROX_SLP_SH);
-}
-
-static int isl29028_enable_proximity(struct isl29028_chip *chip, bool enable)
-{
-	int ret;
-	int val = 0;
-
-	if (enable)
-		val = CONFIGURE_PROX_EN;
-	ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_PROX_EN_MASK, val);
-	if (ret < 0)
-		return ret;
-
-	/* Wait for conversion to be complete for first sample */
-	mdelay(DIV_ROUND_UP(1000, chip->prox_sampling));
-	return 0;
-}
-
-static int isl29028_set_als_scale(struct isl29028_chip *chip, int lux_scale)
-{
-	int val = (lux_scale == 2000) ? CONFIGURE_ALS_RANGE_HIGH_LUX :
-					CONFIGURE_ALS_RANGE_LOW_LUX;
-
-	return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-		CONFIGURE_ALS_RANGE_MASK, val);
-}
-
-static int isl29028_set_als_ir_mode(struct isl29028_chip *chip,
-	enum als_ir_mode mode)
-{
-	int ret = 0;
-
-	switch (mode) {
-	case MODE_ALS:
-		ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_IR_MODE_MASK, CONFIGURE_ALS_IR_MODE_ALS);
-		if (ret < 0)
-			return ret;
-
-		ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_RANGE_MASK, CONFIGURE_ALS_RANGE_HIGH_LUX);
-		break;
-
-	case MODE_IR:
-		ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_IR_MODE_MASK, CONFIGURE_ALS_IR_MODE_IR);
-		break;
-
-	case MODE_NONE:
-		return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_EN_MASK, CONFIGURE_ALS_DIS);
-	}
-
-	if (ret < 0)
-		return ret;
-
-	/* Enable the ALS/IR */
-	ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
-			CONFIGURE_ALS_EN_MASK, CONFIGURE_ALS_EN);
-	if (ret < 0)
-		return ret;
-
-	/* Need to wait for conversion time if ALS/IR mode enabled */
-	mdelay(CONVERSION_TIME_MS);
-	return 0;
-}
-
-static int isl29028_read_als_ir(struct isl29028_chip *chip, int *als_ir)
-{
-	unsigned int lsb;
-	unsigned int msb;
-	int ret;
-
-	ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_L, &lsb);
-	if (ret < 0) {
-		dev_err(chip->dev,
-			"Error in reading register ALSIR_L err %d\n", ret);
-		return ret;
-	}
-
-	ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_U, &msb);
-	if (ret < 0) {
-		dev_err(chip->dev,
-			"Error in reading register ALSIR_U err %d\n", ret);
-		return ret;
-	}
-
-	*als_ir = ((msb & 0xF) << 8) | (lsb & 0xFF);
-	return 0;
-}
-
-static int isl29028_read_proxim(struct isl29028_chip *chip, int *prox)
-{
-	unsigned int data;
-	int ret;
-
-	ret = regmap_read(chip->regmap, ISL29028_REG_PROX_DATA, &data);
-	if (ret < 0) {
-		dev_err(chip->dev, "Error in reading register %d, error %d\n",
-				ISL29028_REG_PROX_DATA, ret);
-		return ret;
-	}
-	*prox = data;
-	return 0;
-}
-
-static int isl29028_proxim_get(struct isl29028_chip *chip, int *prox_data)
-{
-	int ret;
-
-	if (!chip->enable_prox) {
-		ret = isl29028_enable_proximity(chip, true);
-		if (ret < 0)
-			return ret;
-		chip->enable_prox = true;
-	}
-	return isl29028_read_proxim(chip, prox_data);
-}
-
-static int isl29028_als_get(struct isl29028_chip *chip, int *als_data)
-{
-	int ret;
-	int als_ir_data;
-
-	if (chip->als_ir_mode != MODE_ALS) {
-		ret = isl29028_set_als_ir_mode(chip, MODE_ALS);
-		if (ret < 0) {
-			dev_err(chip->dev,
-				"Error in enabling ALS mode err %d\n", ret);
-			return ret;
-		}
-		chip->als_ir_mode = MODE_ALS;
-	}
-
-	ret = isl29028_read_als_ir(chip, &als_ir_data);
-	if (ret < 0)
-		return ret;
-
-	/*
-	 * convert als data count to lux.
-	 * if lux_scale = 125,  lux = count * 0.031
-	 * if lux_scale = 2000, lux = count * 0.49
-	 */
-	if (chip->lux_scale == 125)
-		als_ir_data = (als_ir_data * 31) / 1000;
-	else
-		als_ir_data = (als_ir_data * 49) / 100;
-
-	*als_data = als_ir_data;
-	return 0;
-}
-
-static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data)
-{
-	int ret;
-
-	if (chip->als_ir_mode != MODE_IR) {
-		ret = isl29028_set_als_ir_mode(chip, MODE_IR);
-		if (ret < 0) {
-			dev_err(chip->dev,
-				"Error in enabling IR mode err %d\n", ret);
-			return ret;
-		}
-		chip->als_ir_mode = MODE_IR;
-	}
-	return isl29028_read_als_ir(chip, ir_data);
-}
-
-/* Channel IO */
-static int isl29028_write_raw(struct iio_dev *indio_dev,
-	     struct iio_chan_spec const *chan, int val, int val2, long mask)
-{
-	struct isl29028_chip *chip = iio_priv(indio_dev);
-	int ret = -EINVAL;
-
-	mutex_lock(&chip->lock);
-	switch (chan->type) {
-	case IIO_PROXIMITY:
-		if (mask != IIO_CHAN_INFO_SAMP_FREQ) {
-			dev_err(chip->dev,
-				"proximity: mask value 0x%08lx not supported\n",
-				mask);
-			break;
-		}
-		if (val < 1 || val > 100) {
-			dev_err(chip->dev,
-				"Samp_freq %d is not in range[1:100]\n", val);
-			break;
-		}
-		ret = isl29028_set_proxim_sampling(chip, val);
-		if (ret < 0) {
-			dev_err(chip->dev,
-				"Setting proximity samp_freq fail, err %d\n",
-				ret);
-			break;
-		}
-		chip->prox_sampling = val;
-		break;
-
-	case IIO_LIGHT:
-		if (mask != IIO_CHAN_INFO_SCALE) {
-			dev_err(chip->dev,
-				"light: mask value 0x%08lx not supported\n",
-				mask);
-			break;
-		}
-		if ((val != 125) && (val != 2000)) {
-			dev_err(chip->dev,
-				"lux scale %d is invalid [125, 2000]\n", val);
-			break;
-		}
-		ret = isl29028_set_als_scale(chip, val);
-		if (ret < 0) {
-			dev_err(chip->dev,
-				"Setting lux scale fail with error %d\n", ret);
-			break;
-		}
-		chip->lux_scale = val;
-		break;
-
-	default:
-		dev_err(chip->dev, "Unsupported channel type\n");
-		break;
-	}
-	mutex_unlock(&chip->lock);
-	return ret;
-}
-
-static int isl29028_read_raw(struct iio_dev *indio_dev,
-	     struct iio_chan_spec const *chan, int *val, int *val2, long mask)
-{
-	struct isl29028_chip *chip = iio_priv(indio_dev);
-	int ret = -EINVAL;
-
-	mutex_lock(&chip->lock);
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-	case IIO_CHAN_INFO_PROCESSED:
-		switch (chan->type) {
-		case IIO_LIGHT:
-			ret = isl29028_als_get(chip, val);
-			break;
-		case IIO_INTENSITY:
-			ret = isl29028_ir_get(chip, val);
-			break;
-		case IIO_PROXIMITY:
-			ret = isl29028_proxim_get(chip, val);
-			break;
-		default:
-			break;
-		}
-		if (ret < 0)
-			break;
-		ret = IIO_VAL_INT;
-		break;
-
-	case IIO_CHAN_INFO_SAMP_FREQ:
-		if (chan->type != IIO_PROXIMITY)
-			break;
-		*val = chip->prox_sampling;
-		ret = IIO_VAL_INT;
-		break;
-
-	case IIO_CHAN_INFO_SCALE:
-		if (chan->type != IIO_LIGHT)
-			break;
-		*val = chip->lux_scale;
-		ret = IIO_VAL_INT;
-		break;
-
-	default:
-		dev_err(chip->dev, "mask value 0x%08lx not supported\n", mask);
-		break;
-	}
-	mutex_unlock(&chip->lock);
-	return ret;
-}
-
-static IIO_CONST_ATTR(in_proximity_sampling_frequency_available,
-				"1, 3, 5, 10, 13, 20, 83, 100");
-static IIO_CONST_ATTR(in_illuminance_scale_available, "125, 2000");
-
-#define ISL29028_DEV_ATTR(name) (&iio_dev_attr_##name.dev_attr.attr)
-#define ISL29028_CONST_ATTR(name) (&iio_const_attr_##name.dev_attr.attr)
-static struct attribute *isl29028_attributes[] = {
-	ISL29028_CONST_ATTR(in_proximity_sampling_frequency_available),
-	ISL29028_CONST_ATTR(in_illuminance_scale_available),
-	NULL,
-};
-
-static const struct attribute_group isl29108_group = {
-	.attrs = isl29028_attributes,
-};
-
-static const struct iio_chan_spec isl29028_channels[] = {
-	{
-		.type = IIO_LIGHT,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
-		BIT(IIO_CHAN_INFO_SCALE),
-	}, {
-		.type = IIO_INTENSITY,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-	}, {
-		.type = IIO_PROXIMITY,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ),
-	}
-};
-
-static const struct iio_info isl29028_info = {
-	.attrs = &isl29108_group,
-	.driver_module = THIS_MODULE,
-	.read_raw = &isl29028_read_raw,
-	.write_raw = &isl29028_write_raw,
-};
-
-static int isl29028_chip_init(struct isl29028_chip *chip)
-{
-	int ret;
-
-	chip->enable_prox  = false;
-	chip->prox_sampling = 20;
-	chip->lux_scale = 2000;
-	chip->als_ir_mode = MODE_NONE;
-
-	ret = regmap_write(chip->regmap, ISL29028_REG_TEST1_MODE, 0x0);
-	if (ret < 0) {
-		dev_err(chip->dev, "%s(): write to reg %d failed, err = %d\n",
-			__func__, ISL29028_REG_TEST1_MODE, ret);
-		return ret;
-	}
-	ret = regmap_write(chip->regmap, ISL29028_REG_TEST2_MODE, 0x0);
-	if (ret < 0) {
-		dev_err(chip->dev, "%s(): write to reg %d failed, err = %d\n",
-			__func__, ISL29028_REG_TEST2_MODE, ret);
-		return ret;
-	}
-
-	ret = regmap_write(chip->regmap, ISL29028_REG_CONFIGURE, 0x0);
-	if (ret < 0) {
-		dev_err(chip->dev, "%s(): write to reg %d failed, err = %d\n",
-			__func__, ISL29028_REG_CONFIGURE, ret);
-		return ret;
-	}
-
-	ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling);
-	if (ret < 0) {
-		dev_err(chip->dev, "setting the proximity, err = %d\n",
-			ret);
-		return ret;
-	}
-
-	ret = isl29028_set_als_scale(chip, chip->lux_scale);
-	if (ret < 0)
-		dev_err(chip->dev,
-			"setting als scale failed, err = %d\n", ret);
-	return ret;
-}
-
-static bool is_volatile_reg(struct device *dev, unsigned int reg)
-{
-	switch (reg) {
-	case ISL29028_REG_INTERRUPT:
-	case ISL29028_REG_PROX_DATA:
-	case ISL29028_REG_ALSIR_L:
-	case ISL29028_REG_ALSIR_U:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static const struct regmap_config isl29028_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.volatile_reg = is_volatile_reg,
-	.max_register = ISL29028_NUM_REGS - 1,
-	.num_reg_defaults_raw = ISL29028_NUM_REGS,
-	.cache_type = REGCACHE_RBTREE,
-};
-
-static int isl29028_probe(struct i2c_client *client,
-	const struct i2c_device_id *id)
-{
-	struct isl29028_chip *chip;
-	struct iio_dev *indio_dev;
-	int ret;
-
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
-	if (!indio_dev) {
-		dev_err(&client->dev, "iio allocation fails\n");
-		return -ENOMEM;
-	}
-
-	chip = iio_priv(indio_dev);
-
-	i2c_set_clientdata(client, indio_dev);
-	chip->dev = &client->dev;
-	mutex_init(&chip->lock);
-
-	chip->regmap = devm_regmap_init_i2c(client, &isl29028_regmap_config);
-	if (IS_ERR(chip->regmap)) {
-		ret = PTR_ERR(chip->regmap);
-		dev_err(chip->dev, "regmap initialization failed: %d\n", ret);
-		return ret;
-	}
-
-	ret = isl29028_chip_init(chip);
-	if (ret < 0) {
-		dev_err(chip->dev, "chip initialization failed: %d\n", ret);
-		return ret;
-	}
-
-	indio_dev->info = &isl29028_info;
-	indio_dev->channels = isl29028_channels;
-	indio_dev->num_channels = ARRAY_SIZE(isl29028_channels);
-	indio_dev->name = id->name;
-	indio_dev->dev.parent = &client->dev;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	ret = iio_device_register(indio_dev);
-	if (ret < 0) {
-		dev_err(chip->dev, "iio registration fails with error %d\n",
-			ret);
-		return ret;
-	}
-	return 0;
-}
-
-static int isl29028_remove(struct i2c_client *client)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-	iio_device_unregister(indio_dev);
-	return 0;
-}
-
-static const struct i2c_device_id isl29028_id[] = {
-	{"isl29028", 0},
-	{}
-};
-MODULE_DEVICE_TABLE(i2c, isl29028_id);
-
-static const struct of_device_id isl29028_of_match[] = {
-	{ .compatible = "isl,isl29028", }, /* for backward compat., don't use */
-	{ .compatible = "isil,isl29028", },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, isl29028_of_match);
-
-static struct i2c_driver isl29028_driver = {
-	.class	= I2C_CLASS_HWMON,
-	.driver  = {
-		.name = "isl29028",
-		.of_match_table = isl29028_of_match,
-	},
-	.probe	 = isl29028_probe,
-	.remove  = isl29028_remove,
-	.id_table = isl29028_id,
-};
-
-module_i2c_driver(isl29028_driver);
-
-MODULE_DESCRIPTION("ISL29028 Ambient Light and Proximity Sensor driver");
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
deleted file mode 100644
index b5e1b8b0a6f0..000000000000
--- a/drivers/staging/iio/light/tsl2583.c
+++ /dev/null
@@ -1,949 +0,0 @@
-/*
- * Device driver for monitoring ambient light intensity (lux)
- * within the TAOS tsl258x family of devices (tsl2580, tsl2581).
- *
- * Copyright (c) 2011, TAOS Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA	02110-1301, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/mutex.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/iio/iio.h>
-
-#define TSL258X_MAX_DEVICE_REGS		32
-
-/* Triton register offsets */
-#define	TSL258X_REG_MAX		8
-
-/* Device Registers and Masks */
-#define TSL258X_CNTRL			0x00
-#define TSL258X_ALS_TIME		0X01
-#define TSL258X_INTERRUPT		0x02
-#define TSL258X_GAIN			0x07
-#define TSL258X_REVID			0x11
-#define TSL258X_CHIPID			0x12
-#define TSL258X_ALS_CHAN0LO		0x14
-#define TSL258X_ALS_CHAN0HI		0x15
-#define TSL258X_ALS_CHAN1LO		0x16
-#define TSL258X_ALS_CHAN1HI		0x17
-#define TSL258X_TMR_LO			0x18
-#define TSL258X_TMR_HI			0x19
-
-/* tsl2583 cmd reg masks */
-#define TSL258X_CMD_REG			0x80
-#define TSL258X_CMD_SPL_FN		0x60
-#define TSL258X_CMD_ALS_INT_CLR	0X01
-
-/* tsl2583 cntrl reg masks */
-#define TSL258X_CNTL_ADC_ENBL	0x02
-#define TSL258X_CNTL_PWR_ON		0x01
-
-/* tsl2583 status reg masks */
-#define TSL258X_STA_ADC_VALID	0x01
-#define TSL258X_STA_ADC_INTR	0x10
-
-/* Lux calculation constants */
-#define	TSL258X_LUX_CALC_OVER_FLOW		65535
-
-enum {
-	TSL258X_CHIP_UNKNOWN = 0,
-	TSL258X_CHIP_WORKING = 1,
-	TSL258X_CHIP_SUSPENDED = 2
-};
-
-/* Per-device data */
-struct taos_als_info {
-	u16 als_ch0;
-	u16 als_ch1;
-	u16 lux;
-};
-
-struct taos_settings {
-	int als_time;
-	int als_gain;
-	int als_gain_trim;
-	int als_cal_target;
-};
-
-struct tsl2583_chip {
-	struct mutex als_mutex;
-	struct i2c_client *client;
-	struct taos_als_info als_cur_info;
-	struct taos_settings taos_settings;
-	int als_time_scale;
-	int als_saturation;
-	int taos_chip_status;
-	u8 taos_config[8];
-};
-
-/*
- * Initial values for device - this values can/will be changed by driver.
- * and applications as needed.
- * These values are dynamic.
- */
-static const u8 taos_config[8] = {
-		0x00, 0xee, 0x00, 0x03, 0x00, 0xFF, 0xFF, 0x00
-}; /*	cntrl atime intC  Athl0 Athl1 Athh0 Athh1 gain */
-
-struct taos_lux {
-	unsigned int ratio;
-	unsigned int ch0;
-	unsigned int ch1;
-};
-
-/* This structure is intentionally large to accommodate updates via sysfs. */
-/* Sized to 11 = max 10 segments + 1 termination segment */
-/* Assumption is one and only one type of glass used  */
-static struct taos_lux taos_device_lux[11] = {
-	{  9830,  8520, 15729 },
-	{ 12452, 10807, 23344 },
-	{ 14746,  6383, 11705 },
-	{ 17695,  4063,  6554 },
-};
-
-struct gainadj {
-	s16 ch0;
-	s16 ch1;
-};
-
-/* Index = (0 - 3) Used to validate the gain selection index */
-static const struct gainadj gainadj[] = {
-	{ 1, 1 },
-	{ 8, 8 },
-	{ 16, 16 },
-	{ 107, 115 }
-};
-
-/*
- * Provides initial operational parameter defaults.
- * These defaults may be changed through the device's sysfs files.
- */
-static void taos_defaults(struct tsl2583_chip *chip)
-{
-	/* Operational parameters */
-	chip->taos_settings.als_time = 100;
-	/* must be a multiple of 50mS */
-	chip->taos_settings.als_gain = 0;
-	/* this is actually an index into the gain table */
-	/* assume clear glass as default */
-	chip->taos_settings.als_gain_trim = 1000;
-	/* default gain trim to account for aperture effects */
-	chip->taos_settings.als_cal_target = 130;
-	/* Known external ALS reading used for calibration */
-}
-
-/*
- * Read a number of bytes starting at register (reg) location.
- * Return 0, or i2c_smbus_write_byte ERROR code.
- */
-static int
-taos_i2c_read(struct i2c_client *client, u8 reg, u8 *val, unsigned int len)
-{
-	int i, ret;
-
-	for (i = 0; i < len; i++) {
-		/* select register to write */
-		ret = i2c_smbus_write_byte(client, (TSL258X_CMD_REG | reg));
-		if (ret < 0) {
-			dev_err(&client->dev,
-				"taos_i2c_read failed to write register %x\n",
-				reg);
-			return ret;
-		}
-		/* read the data */
-		*val = i2c_smbus_read_byte(client);
-		val++;
-		reg++;
-	}
-	return 0;
-}
-
-/*
- * Reads and calculates current lux value.
- * The raw ch0 and ch1 values of the ambient light sensed in the last
- * integration cycle are read from the device.
- * Time scale factor array values are adjusted based on the integration time.
- * The raw values are multiplied by a scale factor, and device gain is obtained
- * using gain index. Limit checks are done next, then the ratio of a multiple
- * of ch1 value, to the ch0 value, is calculated. The array taos_device_lux[]
- * declared above is then scanned to find the first ratio value that is just
- * above the ratio we just calculated. The ch0 and ch1 multiplier constants in
- * the array are then used along with the time scale factor array values, to
- * calculate the lux.
- */
-static int taos_get_lux(struct iio_dev *indio_dev)
-{
-	u16 ch0, ch1; /* separated ch0/ch1 data from device */
-	u32 lux; /* raw lux calculated from device data */
-	u64 lux64;
-	u32 ratio;
-	u8 buf[5];
-	struct taos_lux *p;
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int i, ret;
-	u32 ch0lux = 0;
-	u32 ch1lux = 0;
-
-	if (mutex_trylock(&chip->als_mutex) == 0) {
-		dev_info(&chip->client->dev, "taos_get_lux device is busy\n");
-		return chip->als_cur_info.lux; /* busy, so return LAST VALUE */
-	}
-
-	if (chip->taos_chip_status != TSL258X_CHIP_WORKING) {
-		/* device is not enabled */
-		dev_err(&chip->client->dev, "taos_get_lux device is not enabled\n");
-		ret = -EBUSY;
-		goto out_unlock;
-	}
-
-	ret = taos_i2c_read(chip->client, (TSL258X_CMD_REG), &buf[0], 1);
-	if (ret < 0) {
-		dev_err(&chip->client->dev, "taos_get_lux failed to read CMD_REG\n");
-		goto out_unlock;
-	}
-	/* is data new & valid */
-	if (!(buf[0] & TSL258X_STA_ADC_INTR)) {
-		dev_err(&chip->client->dev, "taos_get_lux data not valid\n");
-		ret = chip->als_cur_info.lux; /* return LAST VALUE */
-		goto out_unlock;
-	}
-
-	for (i = 0; i < 4; i++) {
-		int reg = TSL258X_CMD_REG | (TSL258X_ALS_CHAN0LO + i);
-
-		ret = taos_i2c_read(chip->client, reg, &buf[i], 1);
-		if (ret < 0) {
-			dev_err(&chip->client->dev,
-				"taos_get_lux failed to read register %x\n",
-				reg);
-			goto out_unlock;
-		}
-	}
-
-	/* clear status, really interrupt status (interrupts are off), but
-	 * we use the bit anyway - don't forget 0x80 - this is a command*/
-	ret = i2c_smbus_write_byte(chip->client,
-				   (TSL258X_CMD_REG | TSL258X_CMD_SPL_FN |
-				    TSL258X_CMD_ALS_INT_CLR));
-
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"taos_i2c_write_command failed in taos_get_lux, err = %d\n",
-			ret);
-		goto out_unlock; /* have no data, so return failure */
-	}
-
-	/* extract ALS/lux data */
-	ch0 = le16_to_cpup((const __le16 *)&buf[0]);
-	ch1 = le16_to_cpup((const __le16 *)&buf[2]);
-
-	chip->als_cur_info.als_ch0 = ch0;
-	chip->als_cur_info.als_ch1 = ch1;
-
-	if ((ch0 >= chip->als_saturation) || (ch1 >= chip->als_saturation))
-		goto return_max;
-
-	if (ch0 == 0) {
-		/* have no data, so return LAST VALUE */
-		ret = chip->als_cur_info.lux = 0;
-		goto out_unlock;
-	}
-	/* calculate ratio */
-	ratio = (ch1 << 15) / ch0;
-	/* convert to unscaled lux using the pointer to the table */
-	for (p = (struct taos_lux *) taos_device_lux;
-	     p->ratio != 0 && p->ratio < ratio; p++)
-		;
-
-	if (p->ratio == 0) {
-		lux = 0;
-	} else {
-		ch0lux = ((ch0 * p->ch0) +
-			  (gainadj[chip->taos_settings.als_gain].ch0 >> 1))
-			 / gainadj[chip->taos_settings.als_gain].ch0;
-		ch1lux = ((ch1 * p->ch1) +
-			  (gainadj[chip->taos_settings.als_gain].ch1 >> 1))
-			 / gainadj[chip->taos_settings.als_gain].ch1;
-		lux = ch0lux - ch1lux;
-	}
-
-	/* note: lux is 31 bit max at this point */
-	if (ch1lux > ch0lux) {
-		dev_dbg(&chip->client->dev, "No Data - Return last value\n");
-		ret = chip->als_cur_info.lux = 0;
-		goto out_unlock;
-	}
-
-	/* adjust for active time scale */
-	if (chip->als_time_scale == 0)
-		lux = 0;
-	else
-		lux = (lux + (chip->als_time_scale >> 1)) /
-			chip->als_time_scale;
-
-	/* Adjust for active gain scale.
-	 * The taos_device_lux tables above have a factor of 8192 built in,
-	 * so we need to shift right.
-	 * User-specified gain provides a multiplier.
-	 * Apply user-specified gain before shifting right to retain precision.
-	 * Use 64 bits to avoid overflow on multiplication.
-	 * Then go back to 32 bits before division to avoid using div_u64().
-	 */
-	lux64 = lux;
-	lux64 = lux64 * chip->taos_settings.als_gain_trim;
-	lux64 >>= 13;
-	lux = lux64;
-	lux = (lux + 500) / 1000;
-	if (lux > TSL258X_LUX_CALC_OVER_FLOW) { /* check for overflow */
-return_max:
-		lux = TSL258X_LUX_CALC_OVER_FLOW;
-	}
-
-	/* Update the structure with the latest VALID lux. */
-	chip->als_cur_info.lux = lux;
-	ret = lux;
-
-out_unlock:
-	mutex_unlock(&chip->als_mutex);
-	return ret;
-}
-
-/*
- * Obtain single reading and calculate the als_gain_trim (later used
- * to derive actual lux).
- * Return updated gain_trim value.
- */
-static int taos_als_calibrate(struct iio_dev *indio_dev)
-{
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	u8 reg_val;
-	unsigned int gain_trim_val;
-	int ret;
-	int lux_val;
-
-	ret = i2c_smbus_write_byte(chip->client,
-				   (TSL258X_CMD_REG | TSL258X_CNTRL));
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"taos_als_calibrate failed to reach the CNTRL register, ret=%d\n",
-			ret);
-		return ret;
-	}
-
-	reg_val = i2c_smbus_read_byte(chip->client);
-	if ((reg_val & (TSL258X_CNTL_ADC_ENBL | TSL258X_CNTL_PWR_ON))
-			!= (TSL258X_CNTL_ADC_ENBL | TSL258X_CNTL_PWR_ON)) {
-		dev_err(&chip->client->dev,
-			"taos_als_calibrate failed: device not powered on with ADC enabled\n");
-		return -1;
-	}
-
-	ret = i2c_smbus_write_byte(chip->client,
-				   (TSL258X_CMD_REG | TSL258X_CNTRL));
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"taos_als_calibrate failed to reach the STATUS register, ret=%d\n",
-			ret);
-		return ret;
-	}
-	reg_val = i2c_smbus_read_byte(chip->client);
-
-	if ((reg_val & TSL258X_STA_ADC_VALID) != TSL258X_STA_ADC_VALID) {
-		dev_err(&chip->client->dev,
-			"taos_als_calibrate failed: STATUS - ADC not valid.\n");
-		return -ENODATA;
-	}
-	lux_val = taos_get_lux(indio_dev);
-	if (lux_val < 0) {
-		dev_err(&chip->client->dev, "taos_als_calibrate failed to get lux\n");
-		return lux_val;
-	}
-	gain_trim_val = (unsigned int) (((chip->taos_settings.als_cal_target)
-			* chip->taos_settings.als_gain_trim) / lux_val);
-
-	if ((gain_trim_val < 250) || (gain_trim_val > 4000)) {
-		dev_err(&chip->client->dev,
-			"taos_als_calibrate failed: trim_val of %d is out of range\n",
-			gain_trim_val);
-		return -ENODATA;
-	}
-	chip->taos_settings.als_gain_trim = (int) gain_trim_val;
-
-	return (int) gain_trim_val;
-}
-
-/*
- * Turn the device on.
- * Configuration must be set before calling this function.
- */
-static int taos_chip_on(struct iio_dev *indio_dev)
-{
-	int i;
-	int ret;
-	u8 *uP;
-	u8 utmp;
-	int als_count;
-	int als_time;
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-
-	/* and make sure we're not already on */
-	if (chip->taos_chip_status == TSL258X_CHIP_WORKING) {
-		/* if forcing a register update - turn off, then on */
-		dev_info(&chip->client->dev, "device is already enabled\n");
-		return -EINVAL;
-	}
-
-	/* determine als integration register */
-	als_count = (chip->taos_settings.als_time * 100 + 135) / 270;
-	if (als_count == 0)
-		als_count = 1; /* ensure at least one cycle */
-
-	/* convert back to time (encompasses overrides) */
-	als_time = (als_count * 27 + 5) / 10;
-	chip->taos_config[TSL258X_ALS_TIME] = 256 - als_count;
-
-	/* Set the gain based on taos_settings struct */
-	chip->taos_config[TSL258X_GAIN] = chip->taos_settings.als_gain;
-
-	/* set chip struct re scaling and saturation */
-	chip->als_saturation = als_count * 922; /* 90% of full scale */
-	chip->als_time_scale = (als_time + 25) / 50;
-
-	/* TSL258x Specific power-on / adc enable sequence
-	 * Power on the device 1st. */
-	utmp = TSL258X_CNTL_PWR_ON;
-	ret = i2c_smbus_write_byte_data(chip->client,
-					TSL258X_CMD_REG | TSL258X_CNTRL, utmp);
-	if (ret < 0) {
-		dev_err(&chip->client->dev, "taos_chip_on failed on CNTRL reg.\n");
-		return ret;
-	}
-
-	/* Use the following shadow copy for our delay before enabling ADC.
-	 * Write all the registers. */
-	for (i = 0, uP = chip->taos_config; i < TSL258X_REG_MAX; i++) {
-		ret = i2c_smbus_write_byte_data(chip->client,
-						TSL258X_CMD_REG + i,
-						*uP++);
-		if (ret < 0) {
-			dev_err(&chip->client->dev,
-				"taos_chip_on failed on reg %d.\n", i);
-			return ret;
-		}
-	}
-
-	usleep_range(3000, 3500);
-	/* NOW enable the ADC
-	 * initialize the desired mode of operation */
-	utmp = TSL258X_CNTL_PWR_ON | TSL258X_CNTL_ADC_ENBL;
-	ret = i2c_smbus_write_byte_data(chip->client,
-					TSL258X_CMD_REG | TSL258X_CNTRL,
-					utmp);
-	if (ret < 0) {
-		dev_err(&chip->client->dev, "taos_chip_on failed on 2nd CTRL reg.\n");
-		return ret;
-	}
-	chip->taos_chip_status = TSL258X_CHIP_WORKING;
-
-	return ret;
-}
-
-static int taos_chip_off(struct iio_dev *indio_dev)
-{
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-
-	/* turn device off */
-	chip->taos_chip_status = TSL258X_CHIP_SUSPENDED;
-	return i2c_smbus_write_byte_data(chip->client,
-					TSL258X_CMD_REG | TSL258X_CNTRL,
-					0x00);
-}
-
-/* Sysfs Interface Functions */
-
-static ssize_t taos_power_state_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", chip->taos_chip_status);
-}
-
-static ssize_t taos_power_state_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	int value;
-
-	if (kstrtoint(buf, 0, &value))
-		return -EINVAL;
-
-	if (value == 0)
-		taos_chip_off(indio_dev);
-	else
-		taos_chip_on(indio_dev);
-
-	return len;
-}
-
-static ssize_t taos_gain_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	char gain[4] = {0};
-
-	switch (chip->taos_settings.als_gain) {
-	case 0:
-		strcpy(gain, "001");
-		break;
-	case 1:
-		strcpy(gain, "008");
-		break;
-	case 2:
-		strcpy(gain, "016");
-		break;
-	case 3:
-		strcpy(gain, "111");
-		break;
-	}
-
-	return sprintf(buf, "%s\n", gain);
-}
-
-static ssize_t taos_gain_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int value;
-
-	if (kstrtoint(buf, 0, &value))
-		return -EINVAL;
-
-	switch (value) {
-	case 1:
-		chip->taos_settings.als_gain = 0;
-		break;
-	case 8:
-		chip->taos_settings.als_gain = 1;
-		break;
-	case 16:
-		chip->taos_settings.als_gain = 2;
-		break;
-	case 111:
-		chip->taos_settings.als_gain = 3;
-		break;
-	default:
-		dev_err(dev, "Invalid Gain Index (must be 1,8,16,111)\n");
-		return -1;
-	}
-
-	return len;
-}
-
-static ssize_t taos_gain_available_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "%s\n", "1 8 16 111");
-}
-
-static ssize_t taos_als_time_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", chip->taos_settings.als_time);
-}
-
-static ssize_t taos_als_time_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int value;
-
-	if (kstrtoint(buf, 0, &value))
-		return -EINVAL;
-
-	if ((value < 50) || (value > 650))
-		return -EINVAL;
-
-	if (value % 50)
-		return -EINVAL;
-
-	chip->taos_settings.als_time = value;
-
-	return len;
-}
-
-static ssize_t taos_als_time_available_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "%s\n",
-		"50 100 150 200 250 300 350 400 450 500 550 600 650");
-}
-
-static ssize_t taos_als_trim_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", chip->taos_settings.als_gain_trim);
-}
-
-static ssize_t taos_als_trim_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int value;
-
-	if (kstrtoint(buf, 0, &value))
-		return -EINVAL;
-
-	if (value)
-		chip->taos_settings.als_gain_trim = value;
-
-	return len;
-}
-
-static ssize_t taos_als_cal_target_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", chip->taos_settings.als_cal_target);
-}
-
-static ssize_t taos_als_cal_target_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int value;
-
-	if (kstrtoint(buf, 0, &value))
-		return -EINVAL;
-
-	if (value)
-		chip->taos_settings.als_cal_target = value;
-
-	return len;
-}
-
-static ssize_t taos_lux_show(struct device *dev, struct device_attribute *attr,
-	char *buf)
-{
-	int ret;
-
-	ret = taos_get_lux(dev_to_iio_dev(dev));
-	if (ret < 0)
-		return ret;
-
-	return sprintf(buf, "%d\n", ret);
-}
-
-static ssize_t taos_do_calibrate(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	int value;
-
-	if (kstrtoint(buf, 0, &value))
-		return -EINVAL;
-
-	if (value == 1)
-		taos_als_calibrate(indio_dev);
-
-	return len;
-}
-
-static ssize_t taos_luxtable_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	int i;
-	int offset = 0;
-
-	for (i = 0; i < ARRAY_SIZE(taos_device_lux); i++) {
-		offset += sprintf(buf + offset, "%u,%u,%u,",
-				  taos_device_lux[i].ratio,
-				  taos_device_lux[i].ch0,
-				  taos_device_lux[i].ch1);
-		if (taos_device_lux[i].ratio == 0) {
-			/* We just printed the first "0" entry.
-			 * Now get rid of the extra "," and break. */
-			offset--;
-			break;
-		}
-	}
-
-	offset += sprintf(buf + offset, "\n");
-	return offset;
-}
-
-static ssize_t taos_luxtable_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int value[ARRAY_SIZE(taos_device_lux)*3 + 1];
-	int n;
-
-	get_options(buf, ARRAY_SIZE(value), value);
-
-	/* We now have an array of ints starting at value[1], and
-	 * enumerated by value[0].
-	 * We expect each group of three ints is one table entry,
-	 * and the last table entry is all 0.
-	 */
-	n = value[0];
-	if ((n % 3) || n < 6 || n > ((ARRAY_SIZE(taos_device_lux) - 1) * 3)) {
-		dev_info(dev, "LUX TABLE INPUT ERROR 1 Value[0]=%d\n", n);
-		return -EINVAL;
-	}
-	if ((value[(n - 2)] | value[(n - 1)] | value[n]) != 0) {
-		dev_info(dev, "LUX TABLE INPUT ERROR 2 Value[0]=%d\n", n);
-		return -EINVAL;
-	}
-
-	if (chip->taos_chip_status == TSL258X_CHIP_WORKING)
-		taos_chip_off(indio_dev);
-
-	/* Zero out the table */
-	memset(taos_device_lux, 0, sizeof(taos_device_lux));
-	memcpy(taos_device_lux, &value[1], (value[0] * 4));
-
-	taos_chip_on(indio_dev);
-
-	return len;
-}
-
-static DEVICE_ATTR(power_state, S_IRUGO | S_IWUSR,
-		taos_power_state_show, taos_power_state_store);
-
-static DEVICE_ATTR(illuminance0_calibscale, S_IRUGO | S_IWUSR,
-		taos_gain_show, taos_gain_store);
-static DEVICE_ATTR(illuminance0_calibscale_available, S_IRUGO,
-		taos_gain_available_show, NULL);
-
-static DEVICE_ATTR(illuminance0_integration_time, S_IRUGO | S_IWUSR,
-		taos_als_time_show, taos_als_time_store);
-static DEVICE_ATTR(illuminance0_integration_time_available, S_IRUGO,
-		taos_als_time_available_show, NULL);
-
-static DEVICE_ATTR(illuminance0_calibbias, S_IRUGO | S_IWUSR,
-		taos_als_trim_show, taos_als_trim_store);
-
-static DEVICE_ATTR(illuminance0_input_target, S_IRUGO | S_IWUSR,
-		taos_als_cal_target_show, taos_als_cal_target_store);
-
-static DEVICE_ATTR(illuminance0_input, S_IRUGO, taos_lux_show, NULL);
-static DEVICE_ATTR(illuminance0_calibrate, S_IWUSR, NULL, taos_do_calibrate);
-static DEVICE_ATTR(illuminance0_lux_table, S_IRUGO | S_IWUSR,
-		taos_luxtable_show, taos_luxtable_store);
-
-static struct attribute *sysfs_attrs_ctrl[] = {
-	&dev_attr_power_state.attr,
-	&dev_attr_illuminance0_calibscale.attr,			/* Gain  */
-	&dev_attr_illuminance0_calibscale_available.attr,
-	&dev_attr_illuminance0_integration_time.attr,	/* I time*/
-	&dev_attr_illuminance0_integration_time_available.attr,
-	&dev_attr_illuminance0_calibbias.attr,			/* trim  */
-	&dev_attr_illuminance0_input_target.attr,
-	&dev_attr_illuminance0_input.attr,
-	&dev_attr_illuminance0_calibrate.attr,
-	&dev_attr_illuminance0_lux_table.attr,
-	NULL
-};
-
-static struct attribute_group tsl2583_attribute_group = {
-	.attrs = sysfs_attrs_ctrl,
-};
-
-/* Use the default register values to identify the Taos device */
-static int taos_tsl258x_device(unsigned char *bufp)
-{
-	return ((bufp[TSL258X_CHIPID] & 0xf0) == 0x90);
-}
-
-static const struct iio_info tsl2583_info = {
-	.attrs = &tsl2583_attribute_group,
-	.driver_module = THIS_MODULE,
-};
-
-/*
- * Client probe function - When a valid device is found, the driver's device
- * data structure is updated, and initialization completes successfully.
- */
-static int taos_probe(struct i2c_client *clientp,
-		      const struct i2c_device_id *idp)
-{
-	int i, ret;
-	unsigned char buf[TSL258X_MAX_DEVICE_REGS];
-	struct tsl2583_chip *chip;
-	struct iio_dev *indio_dev;
-
-	if (!i2c_check_functionality(clientp->adapter,
-		I2C_FUNC_SMBUS_BYTE_DATA)) {
-		dev_err(&clientp->dev, "taos_probe() - i2c smbus byte data func unsupported\n");
-		return -EOPNOTSUPP;
-	}
-
-	indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip));
-	if (!indio_dev)
-		return -ENOMEM;
-	chip = iio_priv(indio_dev);
-	chip->client = clientp;
-	i2c_set_clientdata(clientp, indio_dev);
-
-	mutex_init(&chip->als_mutex);
-	chip->taos_chip_status = TSL258X_CHIP_UNKNOWN;
-	memcpy(chip->taos_config, taos_config, sizeof(chip->taos_config));
-
-	for (i = 0; i < TSL258X_MAX_DEVICE_REGS; i++) {
-		ret = i2c_smbus_write_byte(clientp,
-				(TSL258X_CMD_REG | (TSL258X_CNTRL + i)));
-		if (ret < 0) {
-			dev_err(&clientp->dev,
-				"i2c_smbus_write_byte to cmd reg failed in taos_probe(), err = %d\n",
-				ret);
-			return ret;
-		}
-		ret = i2c_smbus_read_byte(clientp);
-		if (ret < 0) {
-			dev_err(&clientp->dev,
-				"i2c_smbus_read_byte from reg failed in taos_probe(), err = %d\n",
-				ret);
-			return ret;
-		}
-		buf[i] = ret;
-	}
-
-	if (!taos_tsl258x_device(buf)) {
-		dev_info(&clientp->dev,
-			"i2c device found but does not match expected id in taos_probe()\n");
-		return -EINVAL;
-	}
-
-	ret = i2c_smbus_write_byte(clientp, (TSL258X_CMD_REG | TSL258X_CNTRL));
-	if (ret < 0) {
-		dev_err(&clientp->dev,
-			"i2c_smbus_write_byte() to cmd reg failed in taos_probe(), err = %d\n",
-			ret);
-		return ret;
-	}
-
-	indio_dev->info = &tsl2583_info;
-	indio_dev->dev.parent = &clientp->dev;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->name = chip->client->name;
-	ret = iio_device_register(indio_dev);
-	if (ret) {
-		dev_err(&clientp->dev, "iio registration failed\n");
-		return ret;
-	}
-
-	/* Load up the V2 defaults (these are hard coded defaults for now) */
-	taos_defaults(chip);
-
-	/* Make sure the chip is on */
-	taos_chip_on(indio_dev);
-
-	dev_info(&clientp->dev, "Light sensor found.\n");
-	return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int taos_suspend(struct device *dev)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int ret = 0;
-
-	mutex_lock(&chip->als_mutex);
-
-	if (chip->taos_chip_status == TSL258X_CHIP_WORKING) {
-		ret = taos_chip_off(indio_dev);
-		chip->taos_chip_status = TSL258X_CHIP_SUSPENDED;
-	}
-
-	mutex_unlock(&chip->als_mutex);
-	return ret;
-}
-
-static int taos_resume(struct device *dev)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
-	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	int ret = 0;
-
-	mutex_lock(&chip->als_mutex);
-
-	if (chip->taos_chip_status == TSL258X_CHIP_SUSPENDED)
-		ret = taos_chip_on(indio_dev);
-
-	mutex_unlock(&chip->als_mutex);
-	return ret;
-}
-
-static SIMPLE_DEV_PM_OPS(taos_pm_ops, taos_suspend, taos_resume);
-#define TAOS_PM_OPS (&taos_pm_ops)
-#else
-#define TAOS_PM_OPS NULL
-#endif
-
-static int taos_remove(struct i2c_client *client)
-{
-	iio_device_unregister(i2c_get_clientdata(client));
-
-	return 0;
-}
-
-static struct i2c_device_id taos_idtable[] = {
-	{ "tsl2580", 0 },
-	{ "tsl2581", 1 },
-	{ "tsl2583", 2 },
-	{}
-};
-MODULE_DEVICE_TABLE(i2c, taos_idtable);
-
-/* Driver definition */
-static struct i2c_driver taos_driver = {
-	.driver = {
-		.name = "tsl2583",
-		.pm = TAOS_PM_OPS,
-	},
-	.id_table = taos_idtable,
-	.probe = taos_probe,
-	.remove = taos_remove,
-};
-module_i2c_driver(taos_driver);
-
-MODULE_AUTHOR("J. August Brenner<jbrenner@taosinc.com>");
-MODULE_DESCRIPTION("TAOS tsl2583 ambient light sensor driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/light/tsl2x7x.h b/drivers/staging/iio/light/tsl2x7x.h
deleted file mode 100644
index ecae92211216..000000000000
--- a/drivers/staging/iio/light/tsl2x7x.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Device driver for monitoring ambient light intensity (lux)
- * and proximity (prox) within the TAOS TSL2X7X family of devices.
- *
- * Copyright (c) 2012, TAOS Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA	02110-1301, USA.
- */
-
-#ifndef __TSL2X7X_H
-#define __TSL2X7X_H
-#include <linux/pm.h>
-
-/* Max number of segments allowable in LUX table */
-#define TSL2X7X_MAX_LUX_TABLE_SIZE		9
-#define MAX_DEFAULT_TABLE_BYTES (sizeof(int) * TSL2X7X_MAX_LUX_TABLE_SIZE)
-
-struct iio_dev;
-
-struct tsl2x7x_lux {
-	unsigned int ratio;
-	unsigned int ch0;
-	unsigned int ch1;
-};
-
-/**
- * struct tsl2x7x_default_settings - power on defaults unless
- *                                   overridden by platform data.
- *  @als_time:              ALS Integration time - multiple of 50mS
- *  @als_gain:              Index into the ALS gain table.
- *  @als_gain_trim:         default gain trim to account for
- *                          aperture effects.
- *  @wait_time:             Time between PRX and ALS cycles
- *                          in 2.7 periods
- *  @prx_time:              5.2ms prox integration time -
- *                          decrease in 2.7ms periods
- *  @prx_gain:              Proximity gain index
- *  @prox_config:           Prox configuration filters.
- *  @als_cal_target:        Known external ALS reading for
- *                          calibration.
- *  @interrupts_en:         Enable/Disable - 0x00 = none, 0x10 = als,
- *                                           0x20 = prx,  0x30 = bth
- *  @persistence:           H/W Filters, Number of 'out of limits'
- *                          ADC readings PRX/ALS.
- *  @als_thresh_low:        CH0 'low' count to trigger interrupt.
- *  @als_thresh_high:       CH0 'high' count to trigger interrupt.
- *  @prox_thres_low:        Low threshold proximity detection.
- *  @prox_thres_high:       High threshold proximity detection
- *  @prox_pulse_count:      Number if proximity emitter pulses
- *  @prox_max_samples_cal:  Used for prox cal.
- */
-struct tsl2x7x_settings {
-	int als_time;
-	int als_gain;
-	int als_gain_trim;
-	int wait_time;
-	int prx_time;
-	int prox_gain;
-	int prox_config;
-	int als_cal_target;
-	u8  interrupts_en;
-	u8  persistence;
-	int als_thresh_low;
-	int als_thresh_high;
-	int prox_thres_low;
-	int prox_thres_high;
-	int prox_pulse_count;
-	int prox_max_samples_cal;
-};
-
-/**
- * struct tsl2X7X_platform_data - Platform callback, glass and defaults
- * @platform_power:            Suspend/resume platform callback
- * @power_on:                  Power on callback
- * @power_off:                 Power off callback
- * @platform_lux_table:        Device specific glass coefficents
- * @platform_default_settings: Device specific power on defaults
- *
- */
-struct tsl2X7X_platform_data {
-	int (*platform_power)(struct device *dev, pm_message_t);
-	int (*power_on)(struct iio_dev *indio_dev);
-	int (*power_off)(struct i2c_client *dev);
-	struct tsl2x7x_lux platform_lux_table[TSL2X7X_MAX_LUX_TABLE_SIZE];
-	struct tsl2x7x_settings *platform_default_settings;
-};
-
-#endif /* __TSL2X7X_H */
diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
deleted file mode 100644
index 010e607dd880..000000000000
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ /dev/null
@@ -1,2030 +0,0 @@
-/*
- * Device driver for monitoring ambient light intensity in (lux)
- * and proximity detection (prox) within the TAOS TSL2X7X family of devices.
- *
- * Copyright (c) 2012, TAOS Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA        02110-1301, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/iio/events.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include "tsl2x7x.h"
-
-/* Cal defs*/
-#define PROX_STAT_CAL        0
-#define PROX_STAT_SAMP       1
-#define MAX_SAMPLES_CAL      200
-
-/* TSL2X7X Device ID */
-#define TRITON_ID    0x00
-#define SWORDFISH_ID 0x30
-#define HALIBUT_ID   0x20
-
-/* Lux calculation constants */
-#define TSL2X7X_LUX_CALC_OVER_FLOW     65535
-
-/* TAOS Register definitions - note:
- * depending on device, some of these register are not used and the
- * register address is benign.
- */
-/* 2X7X register offsets */
-#define TSL2X7X_MAX_CONFIG_REG         16
-
-/* Device Registers and Masks */
-#define TSL2X7X_CNTRL                  0x00
-#define TSL2X7X_ALS_TIME               0X01
-#define TSL2X7X_PRX_TIME               0x02
-#define TSL2X7X_WAIT_TIME              0x03
-#define TSL2X7X_ALS_MINTHRESHLO        0X04
-#define TSL2X7X_ALS_MINTHRESHHI        0X05
-#define TSL2X7X_ALS_MAXTHRESHLO        0X06
-#define TSL2X7X_ALS_MAXTHRESHHI        0X07
-#define TSL2X7X_PRX_MINTHRESHLO        0X08
-#define TSL2X7X_PRX_MINTHRESHHI        0X09
-#define TSL2X7X_PRX_MAXTHRESHLO        0X0A
-#define TSL2X7X_PRX_MAXTHRESHHI        0X0B
-#define TSL2X7X_PERSISTENCE            0x0C
-#define TSL2X7X_PRX_CONFIG             0x0D
-#define TSL2X7X_PRX_COUNT              0x0E
-#define TSL2X7X_GAIN                   0x0F
-#define TSL2X7X_NOTUSED                0x10
-#define TSL2X7X_REVID                  0x11
-#define TSL2X7X_CHIPID                 0x12
-#define TSL2X7X_STATUS                 0x13
-#define TSL2X7X_ALS_CHAN0LO            0x14
-#define TSL2X7X_ALS_CHAN0HI            0x15
-#define TSL2X7X_ALS_CHAN1LO            0x16
-#define TSL2X7X_ALS_CHAN1HI            0x17
-#define TSL2X7X_PRX_LO                 0x18
-#define TSL2X7X_PRX_HI                 0x19
-
-/* tsl2X7X cmd reg masks */
-#define TSL2X7X_CMD_REG                0x80
-#define TSL2X7X_CMD_SPL_FN             0x60
-
-#define TSL2X7X_CMD_PROX_INT_CLR       0X05
-#define TSL2X7X_CMD_ALS_INT_CLR        0x06
-#define TSL2X7X_CMD_PROXALS_INT_CLR    0X07
-
-/* tsl2X7X cntrl reg masks */
-#define TSL2X7X_CNTL_ADC_ENBL          0x02
-#define TSL2X7X_CNTL_PWR_ON            0x01
-
-/* tsl2X7X status reg masks */
-#define TSL2X7X_STA_ADC_VALID          0x01
-#define TSL2X7X_STA_PRX_VALID          0x02
-#define TSL2X7X_STA_ADC_PRX_VALID      (TSL2X7X_STA_ADC_VALID |\
-					TSL2X7X_STA_PRX_VALID)
-#define TSL2X7X_STA_ALS_INTR           0x10
-#define TSL2X7X_STA_PRX_INTR           0x20
-
-/* tsl2X7X cntrl reg masks */
-#define TSL2X7X_CNTL_REG_CLEAR         0x00
-#define TSL2X7X_CNTL_PROX_INT_ENBL     0X20
-#define TSL2X7X_CNTL_ALS_INT_ENBL      0X10
-#define TSL2X7X_CNTL_WAIT_TMR_ENBL     0X08
-#define TSL2X7X_CNTL_PROX_DET_ENBL     0X04
-#define TSL2X7X_CNTL_PWRON             0x01
-#define TSL2X7X_CNTL_ALSPON_ENBL       0x03
-#define TSL2X7X_CNTL_INTALSPON_ENBL    0x13
-#define TSL2X7X_CNTL_PROXPON_ENBL      0x0F
-#define TSL2X7X_CNTL_INTPROXPON_ENBL   0x2F
-
-/*Prox diode to use */
-#define TSL2X7X_DIODE0                 0x10
-#define TSL2X7X_DIODE1                 0x20
-#define TSL2X7X_DIODE_BOTH             0x30
-
-/* LED Power */
-#define TSL2X7X_mA100                  0x00
-#define TSL2X7X_mA50                   0x40
-#define TSL2X7X_mA25                   0x80
-#define TSL2X7X_mA13                   0xD0
-#define TSL2X7X_MAX_TIMER_CNT          (0xFF)
-
-#define TSL2X7X_MIN_ITIME 3
-
-/* TAOS txx2x7x Device family members */
-enum {
-	tsl2571,
-	tsl2671,
-	tmd2671,
-	tsl2771,
-	tmd2771,
-	tsl2572,
-	tsl2672,
-	tmd2672,
-	tsl2772,
-	tmd2772
-};
-
-enum {
-	TSL2X7X_CHIP_UNKNOWN = 0,
-	TSL2X7X_CHIP_WORKING = 1,
-	TSL2X7X_CHIP_SUSPENDED = 2
-};
-
-struct tsl2x7x_parse_result {
-	int integer;
-	int fract;
-};
-
-/* Per-device data */
-struct tsl2x7x_als_info {
-	u16 als_ch0;
-	u16 als_ch1;
-	u16 lux;
-};
-
-struct tsl2x7x_prox_stat {
-	int min;
-	int max;
-	int mean;
-	unsigned long stddev;
-};
-
-struct tsl2x7x_chip_info {
-	int chan_table_elements;
-	struct iio_chan_spec		channel[4];
-	const struct iio_info		*info;
-};
-
-struct tsl2X7X_chip {
-	kernel_ulong_t id;
-	struct mutex prox_mutex;
-	struct mutex als_mutex;
-	struct i2c_client *client;
-	u16 prox_data;
-	struct tsl2x7x_als_info als_cur_info;
-	struct tsl2x7x_settings tsl2x7x_settings;
-	struct tsl2X7X_platform_data *pdata;
-	int als_time_scale;
-	int als_saturation;
-	int tsl2x7x_chip_status;
-	u8 tsl2x7x_config[TSL2X7X_MAX_CONFIG_REG];
-	const struct tsl2x7x_chip_info	*chip_info;
-	const struct iio_info *info;
-	s64 event_timestamp;
-	/* This structure is intentionally large to accommodate
-	 * updates via sysfs. */
-	/* Sized to 9 = max 8 segments + 1 termination segment */
-	struct tsl2x7x_lux tsl2x7x_device_lux[TSL2X7X_MAX_LUX_TABLE_SIZE];
-};
-
-/* Different devices require different coefficents */
-static const struct tsl2x7x_lux tsl2x71_lux_table[] = {
-	{ 14461,   611,   1211 },
-	{ 18540,   352,    623 },
-	{     0,     0,      0 },
-};
-
-static const struct tsl2x7x_lux tmd2x71_lux_table[] = {
-	{ 11635,   115,    256 },
-	{ 15536,    87,    179 },
-	{     0,     0,      0 },
-};
-
-static const struct tsl2x7x_lux tsl2x72_lux_table[] = {
-	{ 14013,   466,   917 },
-	{ 18222,   310,   552 },
-	{     0,     0,     0 },
-};
-
-static const struct tsl2x7x_lux tmd2x72_lux_table[] = {
-	{ 13218,   130,   262 },
-	{ 17592,   92,    169 },
-	{     0,     0,     0 },
-};
-
-static const struct tsl2x7x_lux *tsl2x7x_default_lux_table_group[] = {
-	[tsl2571] =	tsl2x71_lux_table,
-	[tsl2671] =	tsl2x71_lux_table,
-	[tmd2671] =	tmd2x71_lux_table,
-	[tsl2771] =	tsl2x71_lux_table,
-	[tmd2771] =	tmd2x71_lux_table,
-	[tsl2572] =	tsl2x72_lux_table,
-	[tsl2672] =	tsl2x72_lux_table,
-	[tmd2672] =	tmd2x72_lux_table,
-	[tsl2772] =	tsl2x72_lux_table,
-	[tmd2772] =	tmd2x72_lux_table,
-};
-
-static const struct tsl2x7x_settings tsl2x7x_default_settings = {
-	.als_time = 219, /* 101 ms */
-	.als_gain = 0,
-	.prx_time = 254, /* 5.4 ms */
-	.prox_gain = 1,
-	.wait_time = 245,
-	.prox_config = 0,
-	.als_gain_trim = 1000,
-	.als_cal_target = 150,
-	.als_thresh_low = 200,
-	.als_thresh_high = 256,
-	.persistence = 255,
-	.interrupts_en = 0,
-	.prox_thres_low  = 0,
-	.prox_thres_high = 512,
-	.prox_max_samples_cal = 30,
-	.prox_pulse_count = 8
-};
-
-static const s16 tsl2X7X_als_gainadj[] = {
-	1,
-	8,
-	16,
-	120
-};
-
-static const s16 tsl2X7X_prx_gainadj[] = {
-	1,
-	2,
-	4,
-	8
-};
-
-/* Channel variations */
-enum {
-	ALS,
-	PRX,
-	ALSPRX,
-	PRX2,
-	ALSPRX2,
-};
-
-static const u8 device_channel_config[] = {
-	ALS,
-	PRX,
-	PRX,
-	ALSPRX,
-	ALSPRX,
-	ALS,
-	PRX2,
-	PRX2,
-	ALSPRX2,
-	ALSPRX2
-};
-
-/**
- * tsl2x7x_i2c_read() - Read a byte from a register.
- * @client:	i2c client
- * @reg:	device register to read from
- * @*val:	pointer to location to store register contents.
- *
- */
-static int
-tsl2x7x_i2c_read(struct i2c_client *client, u8 reg, u8 *val)
-{
-	int ret = 0;
-
-	/* select register to write */
-	ret = i2c_smbus_write_byte(client, (TSL2X7X_CMD_REG | reg));
-	if (ret < 0) {
-		dev_err(&client->dev, "failed to write register %x\n", reg);
-		return ret;
-	}
-
-	/* read the data */
-	ret = i2c_smbus_read_byte(client);
-	if (ret >= 0)
-		*val = (u8)ret;
-	else
-		dev_err(&client->dev, "failed to read register %x\n", reg);
-
-	return ret;
-}
-
-/**
- * tsl2x7x_get_lux() - Reads and calculates current lux value.
- * @indio_dev:	pointer to IIO device
- *
- * The raw ch0 and ch1 values of the ambient light sensed in the last
- * integration cycle are read from the device.
- * Time scale factor array values are adjusted based on the integration time.
- * The raw values are multiplied by a scale factor, and device gain is obtained
- * using gain index. Limit checks are done next, then the ratio of a multiple
- * of ch1 value, to the ch0 value, is calculated. Array tsl2x7x_device_lux[]
- * is then scanned to find the first ratio value that is just above the ratio
- * we just calculated. The ch0 and ch1 multiplier constants in the array are
- * then used along with the time scale factor array values, to calculate the
- * lux.
- */
-static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
-{
-	u16 ch0, ch1; /* separated ch0/ch1 data from device */
-	u32 lux; /* raw lux calculated from device data */
-	u64 lux64;
-	u32 ratio;
-	u8 buf[4];
-	struct tsl2x7x_lux *p;
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int i, ret;
-	u32 ch0lux = 0;
-	u32 ch1lux = 0;
-
-	if (mutex_trylock(&chip->als_mutex) == 0)
-		return chip->als_cur_info.lux; /* busy, so return LAST VALUE */
-
-	if (chip->tsl2x7x_chip_status != TSL2X7X_CHIP_WORKING) {
-		/* device is not enabled */
-		dev_err(&chip->client->dev, "%s: device is not enabled\n",
-				__func__);
-		ret = -EBUSY;
-		goto out_unlock;
-	}
-
-	ret = tsl2x7x_i2c_read(chip->client,
-		(TSL2X7X_CMD_REG | TSL2X7X_STATUS), &buf[0]);
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"%s: Failed to read STATUS Reg\n", __func__);
-		goto out_unlock;
-	}
-	/* is data new & valid */
-	if (!(buf[0] & TSL2X7X_STA_ADC_VALID)) {
-		dev_err(&chip->client->dev,
-			"%s: data not valid yet\n", __func__);
-		ret = chip->als_cur_info.lux; /* return LAST VALUE */
-		goto out_unlock;
-	}
-
-	for (i = 0; i < 4; i++) {
-		ret = tsl2x7x_i2c_read(chip->client,
-			(TSL2X7X_CMD_REG | (TSL2X7X_ALS_CHAN0LO + i)),
-			&buf[i]);
-		if (ret < 0) {
-			dev_err(&chip->client->dev,
-				"failed to read. err=%x\n", ret);
-			goto out_unlock;
-		}
-	}
-
-	/* clear any existing interrupt status */
-	ret = i2c_smbus_write_byte(chip->client,
-		(TSL2X7X_CMD_REG |
-				TSL2X7X_CMD_SPL_FN |
-				TSL2X7X_CMD_ALS_INT_CLR));
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"i2c_write_command failed - err = %d\n", ret);
-		goto out_unlock; /* have no data, so return failure */
-	}
-
-	/* extract ALS/lux data */
-	ch0 = le16_to_cpup((const __le16 *)&buf[0]);
-	ch1 = le16_to_cpup((const __le16 *)&buf[2]);
-
-	chip->als_cur_info.als_ch0 = ch0;
-	chip->als_cur_info.als_ch1 = ch1;
-
-	if ((ch0 >= chip->als_saturation) || (ch1 >= chip->als_saturation)) {
-		lux = TSL2X7X_LUX_CALC_OVER_FLOW;
-		goto return_max;
-	}
-
-	if (ch0 == 0) {
-		/* have no data, so return LAST VALUE */
-		ret = chip->als_cur_info.lux;
-		goto out_unlock;
-	}
-	/* calculate ratio */
-	ratio = (ch1 << 15) / ch0;
-	/* convert to unscaled lux using the pointer to the table */
-	p = (struct tsl2x7x_lux *) chip->tsl2x7x_device_lux;
-	while (p->ratio != 0 && p->ratio < ratio)
-		p++;
-
-	if (p->ratio == 0) {
-		lux = 0;
-	} else {
-		ch0lux = DIV_ROUND_UP((ch0 * p->ch0),
-			tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
-		ch1lux = DIV_ROUND_UP((ch1 * p->ch1),
-			tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
-		lux = ch0lux - ch1lux;
-	}
-
-	/* note: lux is 31 bit max at this point */
-	if (ch1lux > ch0lux) {
-		dev_dbg(&chip->client->dev, "ch1lux > ch0lux-return last value\n");
-		ret = chip->als_cur_info.lux;
-		goto out_unlock;
-	}
-
-	/* adjust for active time scale */
-	if (chip->als_time_scale == 0)
-		lux = 0;
-	else
-		lux = (lux + (chip->als_time_scale >> 1)) /
-			chip->als_time_scale;
-
-	/* adjust for active gain scale
-	 * The tsl2x7x_device_lux tables have a factor of 256 built-in.
-	 * User-specified gain provides a multiplier.
-	 * Apply user-specified gain before shifting right to retain precision.
-	 * Use 64 bits to avoid overflow on multiplication.
-	 * Then go back to 32 bits before division to avoid using div_u64().
-	 */
-
-	lux64 = lux;
-	lux64 = lux64 * chip->tsl2x7x_settings.als_gain_trim;
-	lux64 >>= 8;
-	lux = lux64;
-	lux = (lux + 500) / 1000;
-
-	if (lux > TSL2X7X_LUX_CALC_OVER_FLOW) /* check for overflow */
-		lux = TSL2X7X_LUX_CALC_OVER_FLOW;
-
-	/* Update the structure with the latest lux. */
-return_max:
-	chip->als_cur_info.lux = lux;
-	ret = lux;
-
-out_unlock:
-	mutex_unlock(&chip->als_mutex);
-
-	return ret;
-}
-
-/**
- * tsl2x7x_get_prox() - Reads proximity data registers and updates
- *                      chip->prox_data.
- *
- * @indio_dev:	pointer to IIO device
- */
-static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
-{
-	int i;
-	int ret;
-	u8 status;
-	u8 chdata[2];
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
-	if (mutex_trylock(&chip->prox_mutex) == 0) {
-		dev_err(&chip->client->dev,
-			"%s: Can't get prox mutex\n", __func__);
-		return -EBUSY;
-	}
-
-	ret = tsl2x7x_i2c_read(chip->client,
-		(TSL2X7X_CMD_REG | TSL2X7X_STATUS), &status);
-	if (ret < 0) {
-		dev_err(&chip->client->dev, "i2c err=%d\n", ret);
-		goto prox_poll_err;
-	}
-
-	switch (chip->id) {
-	case tsl2571:
-	case tsl2671:
-	case tmd2671:
-	case tsl2771:
-	case tmd2771:
-		if (!(status & TSL2X7X_STA_ADC_VALID))
-			goto prox_poll_err;
-	break;
-	case tsl2572:
-	case tsl2672:
-	case tmd2672:
-	case tsl2772:
-	case tmd2772:
-		if (!(status & TSL2X7X_STA_PRX_VALID))
-			goto prox_poll_err;
-	break;
-	}
-
-	for (i = 0; i < 2; i++) {
-		ret = tsl2x7x_i2c_read(chip->client,
-			(TSL2X7X_CMD_REG |
-					(TSL2X7X_PRX_LO + i)), &chdata[i]);
-		if (ret < 0)
-			goto prox_poll_err;
-	}
-
-	chip->prox_data =
-			le16_to_cpup((const __le16 *)&chdata[0]);
-
-prox_poll_err:
-
-	mutex_unlock(&chip->prox_mutex);
-
-	return chip->prox_data;
-}
-
-/**
- * tsl2x7x_defaults() - Populates the device nominal operating parameters
- *                      with those provided by a 'platform' data struct or
- *                      with prefined defaults.
- *
- * @chip:               pointer to device structure.
- */
-static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
-{
-	/* If Operational settings defined elsewhere.. */
-	if (chip->pdata && chip->pdata->platform_default_settings)
-		memcpy(&(chip->tsl2x7x_settings),
-			chip->pdata->platform_default_settings,
-			sizeof(tsl2x7x_default_settings));
-	else
-		memcpy(&(chip->tsl2x7x_settings),
-			&tsl2x7x_default_settings,
-			sizeof(tsl2x7x_default_settings));
-
-	/* Load up the proper lux table. */
-	if (chip->pdata && chip->pdata->platform_lux_table[0].ratio != 0)
-		memcpy(chip->tsl2x7x_device_lux,
-			chip->pdata->platform_lux_table,
-			sizeof(chip->pdata->platform_lux_table));
-	else
-		memcpy(chip->tsl2x7x_device_lux,
-		(struct tsl2x7x_lux *)tsl2x7x_default_lux_table_group[chip->id],
-				MAX_DEFAULT_TABLE_BYTES);
-}
-
-/**
- * tsl2x7x_als_calibrate() -	Obtain single reading and calculate
- *                              the als_gain_trim.
- *
- * @indio_dev:	pointer to IIO device
- */
-static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
-{
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	u8 reg_val;
-	int gain_trim_val;
-	int ret;
-	int lux_val;
-
-	ret = i2c_smbus_write_byte(chip->client,
-			(TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"failed to write CNTRL register, ret=%d\n", ret);
-		return ret;
-	}
-
-	reg_val = i2c_smbus_read_byte(chip->client);
-	if ((reg_val & (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON))
-		!= (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON)) {
-		dev_err(&chip->client->dev,
-			"%s: failed: ADC not enabled\n", __func__);
-		return -1;
-	}
-
-	ret = i2c_smbus_write_byte(chip->client,
-			(TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"failed to write ctrl reg: ret=%d\n", ret);
-		return ret;
-	}
-
-	reg_val = i2c_smbus_read_byte(chip->client);
-	if ((reg_val & TSL2X7X_STA_ADC_VALID) != TSL2X7X_STA_ADC_VALID) {
-		dev_err(&chip->client->dev,
-			"%s: failed: STATUS - ADC not valid.\n", __func__);
-		return -ENODATA;
-	}
-
-	lux_val = tsl2x7x_get_lux(indio_dev);
-	if (lux_val < 0) {
-		dev_err(&chip->client->dev,
-		"%s: failed to get lux\n", __func__);
-		return lux_val;
-	}
-
-	gain_trim_val =  ((chip->tsl2x7x_settings.als_cal_target)
-			* chip->tsl2x7x_settings.als_gain_trim) / lux_val;
-	if ((gain_trim_val < 250) || (gain_trim_val > 4000))
-		return -ERANGE;
-
-	chip->tsl2x7x_settings.als_gain_trim = gain_trim_val;
-	dev_info(&chip->client->dev,
-		"%s als_calibrate completed\n", chip->client->name);
-
-	return (int) gain_trim_val;
-}
-
-static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
-{
-	int i;
-	int ret = 0;
-	u8 *dev_reg;
-	u8 utmp;
-	int als_count;
-	int als_time;
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	u8 reg_val = 0;
-
-	if (chip->pdata && chip->pdata->power_on)
-		chip->pdata->power_on(indio_dev);
-
-	/* Non calculated parameters */
-	chip->tsl2x7x_config[TSL2X7X_PRX_TIME] =
-			chip->tsl2x7x_settings.prx_time;
-	chip->tsl2x7x_config[TSL2X7X_WAIT_TIME] =
-			chip->tsl2x7x_settings.wait_time;
-	chip->tsl2x7x_config[TSL2X7X_PRX_CONFIG] =
-			chip->tsl2x7x_settings.prox_config;
-
-	chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHLO] =
-		(chip->tsl2x7x_settings.als_thresh_low) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHHI] =
-		(chip->tsl2x7x_settings.als_thresh_low >> 8) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHLO] =
-		(chip->tsl2x7x_settings.als_thresh_high) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHHI] =
-		(chip->tsl2x7x_settings.als_thresh_high >> 8) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_PERSISTENCE] =
-		chip->tsl2x7x_settings.persistence;
-
-	chip->tsl2x7x_config[TSL2X7X_PRX_COUNT] =
-			chip->tsl2x7x_settings.prox_pulse_count;
-	chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHLO] =
-			(chip->tsl2x7x_settings.prox_thres_low) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHHI] =
-			(chip->tsl2x7x_settings.prox_thres_low >> 8) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHLO] =
-			(chip->tsl2x7x_settings.prox_thres_high) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHHI] =
-			(chip->tsl2x7x_settings.prox_thres_high >> 8) & 0xFF;
-
-	/* and make sure we're not already on */
-	if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
-		/* if forcing a register update - turn off, then on */
-		dev_info(&chip->client->dev, "device is already enabled\n");
-		return -EINVAL;
-	}
-
-	/* determine als integration register */
-	als_count = (chip->tsl2x7x_settings.als_time * 100 + 135) / 270;
-	if (als_count == 0)
-		als_count = 1; /* ensure at least one cycle */
-
-	/* convert back to time (encompasses overrides) */
-	als_time = (als_count * 27 + 5) / 10;
-	chip->tsl2x7x_config[TSL2X7X_ALS_TIME] = 256 - als_count;
-
-	/* Set the gain based on tsl2x7x_settings struct */
-	chip->tsl2x7x_config[TSL2X7X_GAIN] =
-		(chip->tsl2x7x_settings.als_gain |
-			(TSL2X7X_mA100 | TSL2X7X_DIODE1)
-			| ((chip->tsl2x7x_settings.prox_gain) << 2));
-
-	/* set chip struct re scaling and saturation */
-	chip->als_saturation = als_count * 922; /* 90% of full scale */
-	chip->als_time_scale = (als_time + 25) / 50;
-
-	/* TSL2X7X Specific power-on / adc enable sequence
-	 * Power on the device 1st. */
-	utmp = TSL2X7X_CNTL_PWR_ON;
-	ret = i2c_smbus_write_byte_data(chip->client,
-		TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"%s: failed on CNTRL reg.\n", __func__);
-		return ret;
-	}
-
-	/* Use the following shadow copy for our delay before enabling ADC.
-	 * Write all the registers. */
-	for (i = 0, dev_reg = chip->tsl2x7x_config;
-			i < TSL2X7X_MAX_CONFIG_REG; i++) {
-		ret = i2c_smbus_write_byte_data(chip->client,
-				TSL2X7X_CMD_REG + i, *dev_reg++);
-		if (ret < 0) {
-			dev_err(&chip->client->dev,
-				"failed on write to reg %d.\n", i);
-			return ret;
-		}
-	}
-
-	mdelay(3);	/* Power-on settling time */
-
-	/* NOW enable the ADC
-	 * initialize the desired mode of operation */
-	utmp = TSL2X7X_CNTL_PWR_ON |
-			TSL2X7X_CNTL_ADC_ENBL |
-			TSL2X7X_CNTL_PROX_DET_ENBL;
-	ret = i2c_smbus_write_byte_data(chip->client,
-			TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
-	if (ret < 0) {
-		dev_err(&chip->client->dev,
-			"%s: failed on 2nd CTRL reg.\n", __func__);
-		return ret;
-	}
-
-	chip->tsl2x7x_chip_status = TSL2X7X_CHIP_WORKING;
-
-	if (chip->tsl2x7x_settings.interrupts_en != 0) {
-		dev_info(&chip->client->dev, "Setting Up Interrupt(s)\n");
-
-		reg_val = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL;
-		if ((chip->tsl2x7x_settings.interrupts_en == 0x20) ||
-			(chip->tsl2x7x_settings.interrupts_en == 0x30))
-			reg_val |= TSL2X7X_CNTL_PROX_DET_ENBL;
-
-		reg_val |= chip->tsl2x7x_settings.interrupts_en;
-		ret = i2c_smbus_write_byte_data(chip->client,
-			(TSL2X7X_CMD_REG | TSL2X7X_CNTRL), reg_val);
-		if (ret < 0)
-			dev_err(&chip->client->dev,
-				"%s: failed in tsl2x7x_IOCTL_INT_SET.\n",
-				__func__);
-
-		/* Clear out any initial interrupts  */
-		ret = i2c_smbus_write_byte(chip->client,
-			TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN |
-			TSL2X7X_CMD_PROXALS_INT_CLR);
-		if (ret < 0) {
-			dev_err(&chip->client->dev,
-				"%s: Failed to clear Int status\n",
-				__func__);
-		return ret;
-		}
-	}
-
-	return ret;
-}
-
-static int tsl2x7x_chip_off(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
-	/* turn device off */
-	chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
-
-	ret = i2c_smbus_write_byte_data(chip->client,
-		TSL2X7X_CMD_REG | TSL2X7X_CNTRL, 0x00);
-
-	if (chip->pdata && chip->pdata->power_off)
-		chip->pdata->power_off(chip->client);
-
-	return ret;
-}
-
-/**
- * tsl2x7x_invoke_change
- * @indio_dev:	pointer to IIO device
- *
- * Obtain and lock both ALS and PROX resources,
- * determine and save device state (On/Off),
- * cycle device to implement updated parameter,
- * put device back into proper state, and unlock
- * resource.
- */
-static
-int tsl2x7x_invoke_change(struct iio_dev *indio_dev)
-{
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int device_status = chip->tsl2x7x_chip_status;
-
-	mutex_lock(&chip->als_mutex);
-	mutex_lock(&chip->prox_mutex);
-
-	if (device_status == TSL2X7X_CHIP_WORKING)
-		tsl2x7x_chip_off(indio_dev);
-
-	tsl2x7x_chip_on(indio_dev);
-
-	if (device_status != TSL2X7X_CHIP_WORKING)
-		tsl2x7x_chip_off(indio_dev);
-
-	mutex_unlock(&chip->prox_mutex);
-	mutex_unlock(&chip->als_mutex);
-
-	return 0;
-}
-
-static
-void tsl2x7x_prox_calculate(int *data, int length,
-		struct tsl2x7x_prox_stat *statP)
-{
-	int i;
-	int sample_sum;
-	int tmp;
-
-	if (length == 0)
-		length = 1;
-
-	sample_sum = 0;
-	statP->min = INT_MAX;
-	statP->max = INT_MIN;
-	for (i = 0; i < length; i++) {
-		sample_sum += data[i];
-		statP->min = min(statP->min, data[i]);
-		statP->max = max(statP->max, data[i]);
-	}
-
-	statP->mean = sample_sum / length;
-	sample_sum = 0;
-	for (i = 0; i < length; i++) {
-		tmp = data[i] - statP->mean;
-		sample_sum += tmp * tmp;
-	}
-	statP->stddev = int_sqrt((long)sample_sum)/length;
-}
-
-/**
- * tsl2x7x_prox_cal() - Calculates std. and sets thresholds.
- * @indio_dev:	pointer to IIO device
- *
- * Calculates a standard deviation based on the samples,
- * and sets the threshold accordingly.
- */
-static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
-{
-	int prox_history[MAX_SAMPLES_CAL + 1];
-	int i;
-	struct tsl2x7x_prox_stat prox_stat_data[2];
-	struct tsl2x7x_prox_stat *calP;
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	u8 tmp_irq_settings;
-	u8 current_state = chip->tsl2x7x_chip_status;
-
-	if (chip->tsl2x7x_settings.prox_max_samples_cal > MAX_SAMPLES_CAL) {
-		dev_err(&chip->client->dev,
-			"max prox samples cal is too big: %d\n",
-			chip->tsl2x7x_settings.prox_max_samples_cal);
-		chip->tsl2x7x_settings.prox_max_samples_cal = MAX_SAMPLES_CAL;
-	}
-
-	/* have to stop to change settings */
-	tsl2x7x_chip_off(indio_dev);
-
-	/* Enable proximity detection save just in case prox not wanted yet*/
-	tmp_irq_settings = chip->tsl2x7x_settings.interrupts_en;
-	chip->tsl2x7x_settings.interrupts_en |= TSL2X7X_CNTL_PROX_INT_ENBL;
-
-	/*turn on device if not already on*/
-	tsl2x7x_chip_on(indio_dev);
-
-	/*gather the samples*/
-	for (i = 0; i < chip->tsl2x7x_settings.prox_max_samples_cal; i++) {
-		mdelay(15);
-		tsl2x7x_get_prox(indio_dev);
-		prox_history[i] = chip->prox_data;
-		dev_info(&chip->client->dev, "2 i=%d prox data= %d\n",
-			i, chip->prox_data);
-	}
-
-	tsl2x7x_chip_off(indio_dev);
-	calP = &prox_stat_data[PROX_STAT_CAL];
-	tsl2x7x_prox_calculate(prox_history,
-		chip->tsl2x7x_settings.prox_max_samples_cal, calP);
-	chip->tsl2x7x_settings.prox_thres_high = (calP->max << 1) - calP->mean;
-
-	dev_info(&chip->client->dev, " cal min=%d mean=%d max=%d\n",
-		calP->min, calP->mean, calP->max);
-	dev_info(&chip->client->dev,
-		"%s proximity threshold set to %d\n",
-		chip->client->name, chip->tsl2x7x_settings.prox_thres_high);
-
-	/* back to the way they were */
-	chip->tsl2x7x_settings.interrupts_en = tmp_irq_settings;
-	if (current_state == TSL2X7X_CHIP_WORKING)
-		tsl2x7x_chip_on(indio_dev);
-}
-
-static ssize_t tsl2x7x_power_state_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", chip->tsl2x7x_chip_status);
-}
-
-static ssize_t tsl2x7x_power_state_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	bool value;
-
-	if (strtobool(buf, &value))
-		return -EINVAL;
-
-	if (value)
-		tsl2x7x_chip_on(indio_dev);
-	else
-		tsl2x7x_chip_off(indio_dev);
-
-	return len;
-}
-
-static ssize_t tsl2x7x_gain_available_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-
-	switch (chip->id) {
-	case tsl2571:
-	case tsl2671:
-	case tmd2671:
-	case tsl2771:
-	case tmd2771:
-		return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128");
-	}
-
-	return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
-}
-
-static ssize_t tsl2x7x_prox_gain_available_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-		return snprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8");
-}
-
-static ssize_t tsl2x7x_als_time_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-	int y, z;
-
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-	y /= 1000;
-	z %= 1000;
-
-	return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t tsl2x7x_als_time_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	struct tsl2x7x_parse_result result;
-	int ret;
-
-	ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
-	if (ret)
-		return ret;
-
-	result.fract /= 3;
-	chip->tsl2x7x_settings.als_time =
-			(TSL2X7X_MAX_TIMER_CNT - (u8)result.fract);
-
-	dev_info(&chip->client->dev, "%s: als time = %d",
-		__func__, chip->tsl2x7x_settings.als_time);
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return IIO_VAL_INT_PLUS_MICRO;
-}
-
-static IIO_CONST_ATTR(in_illuminance0_integration_time_available,
-		".00272 - .696");
-
-static ssize_t tsl2x7x_als_cal_target_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-			chip->tsl2x7x_settings.als_cal_target);
-}
-
-static ssize_t tsl2x7x_als_cal_target_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	unsigned long value;
-
-	if (kstrtoul(buf, 0, &value))
-		return -EINVAL;
-
-	if (value)
-		chip->tsl2x7x_settings.als_cal_target = value;
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return len;
-}
-
-/* persistence settings */
-static ssize_t tsl2x7x_als_persistence_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-	int y, z, filter_delay;
-
-	/* Determine integration time */
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-	filter_delay = z * (chip->tsl2x7x_settings.persistence & 0x0F);
-	y = filter_delay / 1000;
-	z = filter_delay % 1000;
-
-	return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t tsl2x7x_als_persistence_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	struct tsl2x7x_parse_result result;
-	int y, z, filter_delay;
-	int ret;
-
-	ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
-	if (ret)
-		return ret;
-
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-
-	filter_delay =
-		DIV_ROUND_UP(((result.integer * 1000) + result.fract), z);
-
-	chip->tsl2x7x_settings.persistence &= 0xF0;
-	chip->tsl2x7x_settings.persistence |= (filter_delay & 0x0F);
-
-	dev_info(&chip->client->dev, "%s: als persistence = %d",
-		__func__, filter_delay);
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return IIO_VAL_INT_PLUS_MICRO;
-}
-
-static ssize_t tsl2x7x_prox_persistence_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-	int y, z, filter_delay;
-
-	/* Determine integration time */
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-	filter_delay = z * ((chip->tsl2x7x_settings.persistence & 0xF0) >> 4);
-	y = filter_delay / 1000;
-	z = filter_delay % 1000;
-
-	return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t tsl2x7x_prox_persistence_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	struct tsl2x7x_parse_result result;
-	int y, z, filter_delay;
-	int ret;
-
-	ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
-	if (ret)
-		return ret;
-
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-
-	filter_delay =
-		DIV_ROUND_UP(((result.integer * 1000) + result.fract), z);
-
-	chip->tsl2x7x_settings.persistence &= 0x0F;
-	chip->tsl2x7x_settings.persistence |= ((filter_delay << 4) & 0xF0);
-
-	dev_info(&chip->client->dev, "%s: prox persistence = %d",
-		__func__, filter_delay);
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return IIO_VAL_INT_PLUS_MICRO;
-}
-
-static ssize_t tsl2x7x_do_calibrate(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	bool value;
-
-	if (strtobool(buf, &value))
-		return -EINVAL;
-
-	if (value)
-		tsl2x7x_als_calibrate(indio_dev);
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return len;
-}
-
-static ssize_t tsl2x7x_luxtable_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-	int i = 0;
-	int offset = 0;
-
-	while (i < (TSL2X7X_MAX_LUX_TABLE_SIZE * 3)) {
-		offset += snprintf(buf + offset, PAGE_SIZE, "%u,%u,%u,",
-			chip->tsl2x7x_device_lux[i].ratio,
-			chip->tsl2x7x_device_lux[i].ch0,
-			chip->tsl2x7x_device_lux[i].ch1);
-		if (chip->tsl2x7x_device_lux[i].ratio == 0) {
-			/* We just printed the first "0" entry.
-			 * Now get rid of the extra "," and break. */
-			offset--;
-			break;
-		}
-		i++;
-	}
-
-	offset += snprintf(buf + offset, PAGE_SIZE, "\n");
-	return offset;
-}
-
-static ssize_t tsl2x7x_luxtable_store(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int value[ARRAY_SIZE(chip->tsl2x7x_device_lux)*3 + 1];
-	int n;
-
-	get_options(buf, ARRAY_SIZE(value), value);
-
-	/* We now have an array of ints starting at value[1], and
-	 * enumerated by value[0].
-	 * We expect each group of three ints is one table entry,
-	 * and the last table entry is all 0.
-	 */
-	n = value[0];
-	if ((n % 3) || n < 6 ||
-			n > ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3)) {
-		dev_info(dev, "LUX TABLE INPUT ERROR 1 Value[0]=%d\n", n);
-		return -EINVAL;
-	}
-
-	if ((value[(n - 2)] | value[(n - 1)] | value[n]) != 0) {
-		dev_info(dev, "LUX TABLE INPUT ERROR 2 Value[0]=%d\n", n);
-		return -EINVAL;
-	}
-
-	if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING)
-		tsl2x7x_chip_off(indio_dev);
-
-	/* Zero out the table */
-	memset(chip->tsl2x7x_device_lux, 0, sizeof(chip->tsl2x7x_device_lux));
-	memcpy(chip->tsl2x7x_device_lux, &value[1], (value[0] * 4));
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return len;
-}
-
-static ssize_t tsl2x7x_do_prox_calibrate(struct device *dev,
-	struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	bool value;
-
-	if (strtobool(buf, &value))
-		return -EINVAL;
-
-	if (value)
-		tsl2x7x_prox_cal(indio_dev);
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return len;
-}
-
-static int tsl2x7x_read_interrupt_config(struct iio_dev *indio_dev,
-					 const struct iio_chan_spec *chan,
-					 enum iio_event_type type,
-					 enum iio_event_direction dir)
-{
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int ret;
-
-	if (chan->type == IIO_INTENSITY)
-		ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x10);
-	else
-		ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x20);
-
-	return ret;
-}
-
-static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
-					  const struct iio_chan_spec *chan,
-					  enum iio_event_type type,
-					  enum iio_event_direction dir,
-					  int val)
-{
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
-	if (chan->type == IIO_INTENSITY) {
-		if (val)
-			chip->tsl2x7x_settings.interrupts_en |= 0x10;
-		else
-			chip->tsl2x7x_settings.interrupts_en &= 0x20;
-	} else {
-		if (val)
-			chip->tsl2x7x_settings.interrupts_en |= 0x20;
-		else
-			chip->tsl2x7x_settings.interrupts_en &= 0x10;
-	}
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return 0;
-}
-
-static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
-				const struct iio_chan_spec *chan,
-				enum iio_event_type type,
-				enum iio_event_direction dir,
-				enum iio_event_info info,
-				int val, int val2)
-{
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
-	if (chan->type == IIO_INTENSITY) {
-		switch (dir) {
-		case IIO_EV_DIR_RISING:
-			chip->tsl2x7x_settings.als_thresh_high = val;
-			break;
-		case IIO_EV_DIR_FALLING:
-			chip->tsl2x7x_settings.als_thresh_low = val;
-			break;
-		default:
-			return -EINVAL;
-		}
-	} else {
-		switch (dir) {
-		case IIO_EV_DIR_RISING:
-			chip->tsl2x7x_settings.prox_thres_high = val;
-			break;
-		case IIO_EV_DIR_FALLING:
-			chip->tsl2x7x_settings.prox_thres_low = val;
-			break;
-		default:
-			return -EINVAL;
-		}
-	}
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return 0;
-}
-
-static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
-			       const struct iio_chan_spec *chan,
-			       enum iio_event_type type,
-			       enum iio_event_direction dir,
-				   enum iio_event_info info,
-			       int *val, int *val2)
-{
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
-	if (chan->type == IIO_INTENSITY) {
-		switch (dir) {
-		case IIO_EV_DIR_RISING:
-			*val = chip->tsl2x7x_settings.als_thresh_high;
-			break;
-		case IIO_EV_DIR_FALLING:
-			*val = chip->tsl2x7x_settings.als_thresh_low;
-			break;
-		default:
-			return -EINVAL;
-		}
-	} else {
-		switch (dir) {
-		case IIO_EV_DIR_RISING:
-			*val = chip->tsl2x7x_settings.prox_thres_high;
-			break;
-		case IIO_EV_DIR_FALLING:
-			*val = chip->tsl2x7x_settings.prox_thres_low;
-			break;
-		default:
-			return -EINVAL;
-		}
-	}
-
-	return IIO_VAL_INT;
-}
-
-static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
-			    struct iio_chan_spec const *chan,
-			    int *val,
-			    int *val2,
-			    long mask)
-{
-	int ret = -EINVAL;
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_PROCESSED:
-		switch (chan->type) {
-		case IIO_LIGHT:
-			tsl2x7x_get_lux(indio_dev);
-			*val = chip->als_cur_info.lux;
-			ret = IIO_VAL_INT;
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_CHAN_INFO_RAW:
-		switch (chan->type) {
-		case IIO_INTENSITY:
-			tsl2x7x_get_lux(indio_dev);
-			if (chan->channel == 0)
-				*val = chip->als_cur_info.als_ch0;
-			else
-				*val = chip->als_cur_info.als_ch1;
-			ret = IIO_VAL_INT;
-			break;
-		case IIO_PROXIMITY:
-			tsl2x7x_get_prox(indio_dev);
-			*val = chip->prox_data;
-			ret = IIO_VAL_INT;
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-	case IIO_CHAN_INFO_CALIBSCALE:
-		if (chan->type == IIO_LIGHT)
-			*val =
-			tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain];
-		else
-			*val =
-			tsl2X7X_prx_gainadj[chip->tsl2x7x_settings.prox_gain];
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		*val = chip->tsl2x7x_settings.als_gain_trim;
-		ret = IIO_VAL_INT;
-		break;
-
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
-			       struct iio_chan_spec const *chan,
-			       int val,
-			       int val2,
-			       long mask)
-{
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
-	switch (mask) {
-	case IIO_CHAN_INFO_CALIBSCALE:
-		if (chan->type == IIO_INTENSITY) {
-			switch (val) {
-			case 1:
-				chip->tsl2x7x_settings.als_gain = 0;
-				break;
-			case 8:
-				chip->tsl2x7x_settings.als_gain = 1;
-				break;
-			case 16:
-				chip->tsl2x7x_settings.als_gain = 2;
-				break;
-			case 120:
-				switch (chip->id) {
-				case tsl2572:
-				case tsl2672:
-				case tmd2672:
-				case tsl2772:
-				case tmd2772:
-					return -EINVAL;
-				}
-				chip->tsl2x7x_settings.als_gain = 3;
-				break;
-			case 128:
-				switch (chip->id) {
-				case tsl2571:
-				case tsl2671:
-				case tmd2671:
-				case tsl2771:
-				case tmd2771:
-					return -EINVAL;
-				}
-				chip->tsl2x7x_settings.als_gain = 3;
-				break;
-			default:
-				return -EINVAL;
-			}
-		} else {
-			switch (val) {
-			case 1:
-				chip->tsl2x7x_settings.prox_gain = 0;
-				break;
-			case 2:
-				chip->tsl2x7x_settings.prox_gain = 1;
-				break;
-			case 4:
-				chip->tsl2x7x_settings.prox_gain = 2;
-				break;
-			case 8:
-				chip->tsl2x7x_settings.prox_gain = 3;
-				break;
-			default:
-				return -EINVAL;
-			}
-		}
-		break;
-	case IIO_CHAN_INFO_CALIBBIAS:
-		chip->tsl2x7x_settings.als_gain_trim = val;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return 0;
-}
-
-static DEVICE_ATTR(power_state, S_IRUGO | S_IWUSR,
-		tsl2x7x_power_state_show, tsl2x7x_power_state_store);
-
-static DEVICE_ATTR(in_proximity0_calibscale_available, S_IRUGO,
-		tsl2x7x_prox_gain_available_show, NULL);
-
-static DEVICE_ATTR(in_illuminance0_calibscale_available, S_IRUGO,
-		tsl2x7x_gain_available_show, NULL);
-
-static DEVICE_ATTR(in_illuminance0_integration_time, S_IRUGO | S_IWUSR,
-		tsl2x7x_als_time_show, tsl2x7x_als_time_store);
-
-static DEVICE_ATTR(in_illuminance0_target_input, S_IRUGO | S_IWUSR,
-		tsl2x7x_als_cal_target_show, tsl2x7x_als_cal_target_store);
-
-static DEVICE_ATTR(in_illuminance0_calibrate, S_IWUSR, NULL,
-		tsl2x7x_do_calibrate);
-
-static DEVICE_ATTR(in_proximity0_calibrate, S_IWUSR, NULL,
-		tsl2x7x_do_prox_calibrate);
-
-static DEVICE_ATTR(in_illuminance0_lux_table, S_IRUGO | S_IWUSR,
-		tsl2x7x_luxtable_show, tsl2x7x_luxtable_store);
-
-static DEVICE_ATTR(in_intensity0_thresh_period, S_IRUGO | S_IWUSR,
-		tsl2x7x_als_persistence_show, tsl2x7x_als_persistence_store);
-
-static DEVICE_ATTR(in_proximity0_thresh_period, S_IRUGO | S_IWUSR,
-		tsl2x7x_prox_persistence_show, tsl2x7x_prox_persistence_store);
-
-/* Use the default register values to identify the Taos device */
-static int tsl2x7x_device_id(unsigned char *id, int target)
-{
-	switch (target) {
-	case tsl2571:
-	case tsl2671:
-	case tsl2771:
-		return (*id & 0xf0) == TRITON_ID;
-	case tmd2671:
-	case tmd2771:
-		return (*id & 0xf0) == HALIBUT_ID;
-	case tsl2572:
-	case tsl2672:
-	case tmd2672:
-	case tsl2772:
-	case tmd2772:
-		return (*id & 0xf0) == SWORDFISH_ID;
-	}
-
-	return -EINVAL;
-}
-
-static irqreturn_t tsl2x7x_event_handler(int irq, void *private)
-{
-	struct iio_dev *indio_dev = private;
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	s64 timestamp = iio_get_time_ns();
-	int ret;
-	u8 value;
-
-	value = i2c_smbus_read_byte_data(chip->client,
-		TSL2X7X_CMD_REG | TSL2X7X_STATUS);
-
-	/* What type of interrupt do we need to process */
-	if (value & TSL2X7X_STA_PRX_INTR) {
-		tsl2x7x_get_prox(indio_dev); /* freshen data for ABI */
-		iio_push_event(indio_dev,
-			       IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY,
-						    0,
-						    IIO_EV_TYPE_THRESH,
-						    IIO_EV_DIR_EITHER),
-						    timestamp);
-	}
-
-	if (value & TSL2X7X_STA_ALS_INTR) {
-		tsl2x7x_get_lux(indio_dev); /* freshen data for ABI */
-		iio_push_event(indio_dev,
-		       IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
-					    0,
-					    IIO_EV_TYPE_THRESH,
-					    IIO_EV_DIR_EITHER),
-					    timestamp);
-	}
-	/* Clear interrupt now that we have handled it. */
-	ret = i2c_smbus_write_byte(chip->client,
-		TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN |
-		TSL2X7X_CMD_PROXALS_INT_CLR);
-	if (ret < 0)
-		dev_err(&chip->client->dev,
-			"Failed to clear irq from event handler. err = %d\n",
-			ret);
-
-	return IRQ_HANDLED;
-}
-
-static struct attribute *tsl2x7x_ALS_device_attrs[] = {
-	&dev_attr_power_state.attr,
-	&dev_attr_in_illuminance0_calibscale_available.attr,
-	&dev_attr_in_illuminance0_integration_time.attr,
-	&iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
-	&dev_attr_in_illuminance0_target_input.attr,
-	&dev_attr_in_illuminance0_calibrate.attr,
-	&dev_attr_in_illuminance0_lux_table.attr,
-	NULL
-};
-
-static struct attribute *tsl2x7x_PRX_device_attrs[] = {
-	&dev_attr_power_state.attr,
-	&dev_attr_in_proximity0_calibrate.attr,
-	NULL
-};
-
-static struct attribute *tsl2x7x_ALSPRX_device_attrs[] = {
-	&dev_attr_power_state.attr,
-	&dev_attr_in_illuminance0_calibscale_available.attr,
-	&dev_attr_in_illuminance0_integration_time.attr,
-	&iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
-	&dev_attr_in_illuminance0_target_input.attr,
-	&dev_attr_in_illuminance0_calibrate.attr,
-	&dev_attr_in_illuminance0_lux_table.attr,
-	&dev_attr_in_proximity0_calibrate.attr,
-	NULL
-};
-
-static struct attribute *tsl2x7x_PRX2_device_attrs[] = {
-	&dev_attr_power_state.attr,
-	&dev_attr_in_proximity0_calibrate.attr,
-	&dev_attr_in_proximity0_calibscale_available.attr,
-	NULL
-};
-
-static struct attribute *tsl2x7x_ALSPRX2_device_attrs[] = {
-	&dev_attr_power_state.attr,
-	&dev_attr_in_illuminance0_calibscale_available.attr,
-	&dev_attr_in_illuminance0_integration_time.attr,
-	&iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
-	&dev_attr_in_illuminance0_target_input.attr,
-	&dev_attr_in_illuminance0_calibrate.attr,
-	&dev_attr_in_illuminance0_lux_table.attr,
-	&dev_attr_in_proximity0_calibrate.attr,
-	&dev_attr_in_proximity0_calibscale_available.attr,
-	NULL
-};
-
-static struct attribute *tsl2X7X_ALS_event_attrs[] = {
-	&dev_attr_in_intensity0_thresh_period.attr,
-	NULL,
-};
-static struct attribute *tsl2X7X_PRX_event_attrs[] = {
-	&dev_attr_in_proximity0_thresh_period.attr,
-	NULL,
-};
-
-static struct attribute *tsl2X7X_ALSPRX_event_attrs[] = {
-	&dev_attr_in_intensity0_thresh_period.attr,
-	&dev_attr_in_proximity0_thresh_period.attr,
-	NULL,
-};
-
-static const struct attribute_group tsl2X7X_device_attr_group_tbl[] = {
-	[ALS] = {
-		.attrs = tsl2x7x_ALS_device_attrs,
-	},
-	[PRX] = {
-		.attrs = tsl2x7x_PRX_device_attrs,
-	},
-	[ALSPRX] = {
-		.attrs = tsl2x7x_ALSPRX_device_attrs,
-	},
-	[PRX2] = {
-		.attrs = tsl2x7x_PRX2_device_attrs,
-	},
-	[ALSPRX2] = {
-		.attrs = tsl2x7x_ALSPRX2_device_attrs,
-	},
-};
-
-static struct attribute_group tsl2X7X_event_attr_group_tbl[] = {
-	[ALS] = {
-		.attrs = tsl2X7X_ALS_event_attrs,
-		.name = "events",
-	},
-	[PRX] = {
-		.attrs = tsl2X7X_PRX_event_attrs,
-		.name = "events",
-	},
-	[ALSPRX] = {
-		.attrs = tsl2X7X_ALSPRX_event_attrs,
-		.name = "events",
-	},
-};
-
-static const struct iio_info tsl2X7X_device_info[] = {
-	[ALS] = {
-		.attrs = &tsl2X7X_device_attr_group_tbl[ALS],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[ALS],
-		.driver_module = THIS_MODULE,
-		.read_raw = &tsl2x7x_read_raw,
-		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
-	},
-	[PRX] = {
-		.attrs = &tsl2X7X_device_attr_group_tbl[PRX],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
-		.driver_module = THIS_MODULE,
-		.read_raw = &tsl2x7x_read_raw,
-		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
-	},
-	[ALSPRX] = {
-		.attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
-		.driver_module = THIS_MODULE,
-		.read_raw = &tsl2x7x_read_raw,
-		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
-	},
-	[PRX2] = {
-		.attrs = &tsl2X7X_device_attr_group_tbl[PRX2],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
-		.driver_module = THIS_MODULE,
-		.read_raw = &tsl2x7x_read_raw,
-		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
-	},
-	[ALSPRX2] = {
-		.attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX2],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
-		.driver_module = THIS_MODULE,
-		.read_raw = &tsl2x7x_read_raw,
-		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
-	},
-};
-
-static const struct iio_event_spec tsl2x7x_events[] = {
-	{
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	}, {
-		.type = IIO_EV_TYPE_THRESH,
-		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
-	},
-};
-
-static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
-	[ALS] = {
-		.channel = {
-			{
-			.type = IIO_LIGHT,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
-			}, {
-			.type = IIO_INTENSITY,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-				BIT(IIO_CHAN_INFO_CALIBSCALE) |
-				BIT(IIO_CHAN_INFO_CALIBBIAS),
-			.event_spec = tsl2x7x_events,
-			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
-			}, {
-			.type = IIO_INTENSITY,
-			.indexed = 1,
-			.channel = 1,
-			},
-		},
-	.chan_table_elements = 3,
-	.info = &tsl2X7X_device_info[ALS],
-	},
-	[PRX] = {
-		.channel = {
-			{
-			.type = IIO_PROXIMITY,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			.event_spec = tsl2x7x_events,
-			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
-			},
-		},
-	.chan_table_elements = 1,
-	.info = &tsl2X7X_device_info[PRX],
-	},
-	[ALSPRX] = {
-		.channel = {
-			{
-			.type = IIO_LIGHT,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED)
-			}, {
-			.type = IIO_INTENSITY,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-				BIT(IIO_CHAN_INFO_CALIBSCALE) |
-				BIT(IIO_CHAN_INFO_CALIBBIAS),
-			.event_spec = tsl2x7x_events,
-			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
-			}, {
-			.type = IIO_INTENSITY,
-			.indexed = 1,
-			.channel = 1,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			}, {
-			.type = IIO_PROXIMITY,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			.event_spec = tsl2x7x_events,
-			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
-			},
-		},
-	.chan_table_elements = 4,
-	.info = &tsl2X7X_device_info[ALSPRX],
-	},
-	[PRX2] = {
-		.channel = {
-			{
-			.type = IIO_PROXIMITY,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-				BIT(IIO_CHAN_INFO_CALIBSCALE),
-			.event_spec = tsl2x7x_events,
-			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
-			},
-		},
-	.chan_table_elements = 1,
-	.info = &tsl2X7X_device_info[PRX2],
-	},
-	[ALSPRX2] = {
-		.channel = {
-			{
-			.type = IIO_LIGHT,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
-			}, {
-			.type = IIO_INTENSITY,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-				BIT(IIO_CHAN_INFO_CALIBSCALE) |
-				BIT(IIO_CHAN_INFO_CALIBBIAS),
-			.event_spec = tsl2x7x_events,
-			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
-			}, {
-			.type = IIO_INTENSITY,
-			.indexed = 1,
-			.channel = 1,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			}, {
-			.type = IIO_PROXIMITY,
-			.indexed = 1,
-			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-				BIT(IIO_CHAN_INFO_CALIBSCALE),
-			.event_spec = tsl2x7x_events,
-			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
-			},
-		},
-	.chan_table_elements = 4,
-	.info = &tsl2X7X_device_info[ALSPRX2],
-	},
-};
-
-static int tsl2x7x_probe(struct i2c_client *clientp,
-	const struct i2c_device_id *id)
-{
-	int ret;
-	unsigned char device_id;
-	struct iio_dev *indio_dev;
-	struct tsl2X7X_chip *chip;
-
-	indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	chip = iio_priv(indio_dev);
-	chip->client = clientp;
-	i2c_set_clientdata(clientp, indio_dev);
-
-	ret = tsl2x7x_i2c_read(chip->client,
-		TSL2X7X_CHIPID, &device_id);
-	if (ret < 0)
-		return ret;
-
-	if ((!tsl2x7x_device_id(&device_id, id->driver_data)) ||
-		(tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) {
-		dev_info(&chip->client->dev,
-				"%s: i2c device found does not match expected id\n",
-				__func__);
-		return -EINVAL;
-	}
-
-	ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
-	if (ret < 0) {
-		dev_err(&clientp->dev, "write to cmd reg failed. err = %d\n",
-			ret);
-		return ret;
-	}
-
-	/* ALS and PROX functions can be invoked via user space poll
-	 * or H/W interrupt. If busy return last sample. */
-	mutex_init(&chip->als_mutex);
-	mutex_init(&chip->prox_mutex);
-
-	chip->tsl2x7x_chip_status = TSL2X7X_CHIP_UNKNOWN;
-	chip->pdata = clientp->dev.platform_data;
-	chip->id = id->driver_data;
-	chip->chip_info =
-		&tsl2x7x_chip_info_tbl[device_channel_config[id->driver_data]];
-
-	indio_dev->info = chip->chip_info->info;
-	indio_dev->dev.parent = &clientp->dev;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->name = chip->client->name;
-	indio_dev->channels = chip->chip_info->channel;
-	indio_dev->num_channels = chip->chip_info->chan_table_elements;
-
-	if (clientp->irq) {
-		ret = devm_request_threaded_irq(&clientp->dev, clientp->irq,
-						NULL,
-						&tsl2x7x_event_handler,
-						IRQF_TRIGGER_RISING |
-						IRQF_ONESHOT,
-						"TSL2X7X_event",
-						indio_dev);
-		if (ret) {
-			dev_err(&clientp->dev,
-				"%s: irq request failed", __func__);
-			return ret;
-		}
-	}
-
-	/* Load up the defaults */
-	tsl2x7x_defaults(chip);
-	/* Make sure the chip is on */
-	tsl2x7x_chip_on(indio_dev);
-
-	ret = iio_device_register(indio_dev);
-	if (ret) {
-		dev_err(&clientp->dev,
-			"%s: iio registration failed\n", __func__);
-		return ret;
-	}
-
-	dev_info(&clientp->dev, "%s Light sensor found.\n", id->name);
-
-	return 0;
-}
-
-static int tsl2x7x_suspend(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int ret = 0;
-
-	if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
-		ret = tsl2x7x_chip_off(indio_dev);
-		chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
-	}
-
-	if (chip->pdata && chip->pdata->platform_power) {
-		pm_message_t pmm = {PM_EVENT_SUSPEND};
-
-		chip->pdata->platform_power(dev, pmm);
-	}
-
-	return ret;
-}
-
-static int tsl2x7x_resume(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int ret = 0;
-
-	if (chip->pdata && chip->pdata->platform_power) {
-		pm_message_t pmm = {PM_EVENT_RESUME};
-
-		chip->pdata->platform_power(dev, pmm);
-	}
-
-	if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_SUSPENDED)
-		ret = tsl2x7x_chip_on(indio_dev);
-
-	return ret;
-}
-
-static int tsl2x7x_remove(struct i2c_client *client)
-{
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-	tsl2x7x_chip_off(indio_dev);
-
-	iio_device_unregister(indio_dev);
-
-	return 0;
-}
-
-static struct i2c_device_id tsl2x7x_idtable[] = {
-	{ "tsl2571", tsl2571 },
-	{ "tsl2671", tsl2671 },
-	{ "tmd2671", tmd2671 },
-	{ "tsl2771", tsl2771 },
-	{ "tmd2771", tmd2771 },
-	{ "tsl2572", tsl2572 },
-	{ "tsl2672", tsl2672 },
-	{ "tmd2672", tmd2672 },
-	{ "tsl2772", tsl2772 },
-	{ "tmd2772", tmd2772 },
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, tsl2x7x_idtable);
-
-static const struct dev_pm_ops tsl2x7x_pm_ops = {
-	.suspend = tsl2x7x_suspend,
-	.resume  = tsl2x7x_resume,
-};
-
-/* Driver definition */
-static struct i2c_driver tsl2x7x_driver = {
-	.driver = {
-		.name = "tsl2x7x",
-		.pm = &tsl2x7x_pm_ops,
-	},
-	.id_table = tsl2x7x_idtable,
-	.probe = tsl2x7x_probe,
-	.remove = tsl2x7x_remove,
-};
-
-module_i2c_driver(tsl2x7x_driver);
-
-MODULE_AUTHOR("J. August Brenner<jbrenner@taosinc.com>");
-MODULE_DESCRIPTION("TAOS tsl2x7x ambient and proximity light sensor driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/magnetometer/Kconfig b/drivers/staging/iio/magnetometer/Kconfig
deleted file mode 100644
index dec814a7a073..000000000000
--- a/drivers/staging/iio/magnetometer/Kconfig
+++ /dev/null
@@ -1,40 +0,0 @@
-#
-# Magnetometer sensors
-#
-menu "Magnetometer sensors"
-
-config SENSORS_HMC5843
-	tristate
-	select IIO_BUFFER
-	select IIO_TRIGGERED_BUFFER
-
-config SENSORS_HMC5843_I2C
-	tristate "Honeywell HMC5843/5883/5883L 3-Axis Magnetometer (I2C)"
-	depends on I2C
-	select SENSORS_HMC5843
-	select REGMAP_I2C
-	help
-	  Say Y here to add support for the Honeywell HMC5843, HMC5883 and
-	  HMC5883L 3-Axis Magnetometer (digital compass).
-
-	  This driver can also be compiled as a set of modules.
-	  If so, these modules will be created:
-	  - hmc5843_core (core functions)
-	  - hmc5843_i2c (support for HMC5843, HMC5883, HMC5883L and HMC5983)
-
-config SENSORS_HMC5843_SPI
-	tristate "Honeywell HMC5983 3-Axis Magnetometer (SPI)"
-	depends on SPI_MASTER
-	select SENSORS_HMC5843
-	select REGMAP_SPI
-	help
-	  Say Y here to add support for the Honeywell HMC5983 3-Axis Magnetometer
-	  (digital compass).
-
-	  This driver can also be compiled as a set of modules.
-	  If so, these modules will be created:
-	  - hmc5843_core (core functions)
-	  - hmc5843_spi (support for HMC5983)
-
-
-endmenu
diff --git a/drivers/staging/iio/magnetometer/Makefile b/drivers/staging/iio/magnetometer/Makefile
deleted file mode 100644
index 33761a19a956..000000000000
--- a/drivers/staging/iio/magnetometer/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for industrial I/O Magnetometer sensors
-#
-
-obj-$(CONFIG_SENSORS_HMC5843)		+= hmc5843_core.o
-obj-$(CONFIG_SENSORS_HMC5843_I2C)	+= hmc5843_i2c.o
-obj-$(CONFIG_SENSORS_HMC5843_SPI)	+= hmc5843_spi.o
diff --git a/drivers/staging/iio/magnetometer/hmc5843.h b/drivers/staging/iio/magnetometer/hmc5843.h
deleted file mode 100644
index f3d0da2fe458..000000000000
--- a/drivers/staging/iio/magnetometer/hmc5843.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Header file for hmc5843 driver
- *
- * Split from hmc5843.c
- * Copyright (C) Josef Gajdusek <atx@atx.name>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * */
-
-#ifndef HMC5843_CORE_H
-#define HMC5843_CORE_H
-
-#include <linux/regmap.h>
-#include <linux/iio/iio.h>
-
-#define HMC5843_CONFIG_REG_A			0x00
-#define HMC5843_CONFIG_REG_B			0x01
-#define HMC5843_MODE_REG			0x02
-#define HMC5843_DATA_OUT_MSB_REGS		0x03
-#define HMC5843_STATUS_REG			0x09
-#define HMC5843_ID_REG				0x0a
-#define HMC5843_ID_END				0x0c
-
-enum hmc5843_ids {
-	HMC5843_ID,
-	HMC5883_ID,
-	HMC5883L_ID,
-	HMC5983_ID,
-};
-
-/**
- * struct hcm5843_data	- device specific data
- * @dev:		actual device
- * @lock:		update and read regmap data
- * @regmap:		hardware access register maps
- * @variant:		describe chip variants
- * @buffer:		3x 16-bit channels + padding + 64-bit timestamp
- **/
-struct hmc5843_data {
-	struct device *dev;
-	struct mutex lock;
-	struct regmap *regmap;
-	const struct hmc5843_chip_info *variant;
-	__be16 buffer[8];
-};
-
-int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
-			 enum hmc5843_ids id);
-int hmc5843_common_remove(struct device *dev);
-
-int hmc5843_common_suspend(struct device *dev);
-int hmc5843_common_resume(struct device *dev);
-
-#ifdef CONFIG_PM_SLEEP
-static SIMPLE_DEV_PM_OPS(hmc5843_pm_ops,
-		hmc5843_common_suspend,
-		hmc5843_common_resume);
-#define HMC5843_PM_OPS (&hmc5843_pm_ops)
-#else
-#define HMC5843_PM_OPS NULL
-#endif
-
-#endif /* HMC5843_CORE_H */
diff --git a/drivers/staging/iio/magnetometer/hmc5843_core.c b/drivers/staging/iio/magnetometer/hmc5843_core.c
deleted file mode 100644
index fffca3a9f637..000000000000
--- a/drivers/staging/iio/magnetometer/hmc5843_core.c
+++ /dev/null
@@ -1,646 +0,0 @@
-/*
- * Device driver for the the HMC5843 multi-chip module designed
- * for low field magnetic sensing.
- *
- * Copyright (C) 2010 Texas Instruments
- *
- * Author: Shubhrajyoti Datta <shubhrajyoti@ti.com>
- * Acknowledgment: Jonathan Cameron <jic23@kernel.org> for valuable inputs.
- * Support for HMC5883 and HMC5883L by Peter Meerwald <pmeerw@pmeerw.net>.
- * Split to multiple files by Josef Gajdusek <atx@atx.name> - 2014
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/regmap.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/triggered_buffer.h>
-#include <linux/delay.h>
-
-#include "hmc5843.h"
-
-/*
- * Range gain settings in (+-)Ga
- * Beware: HMC5843 and HMC5883 have different recommended sensor field
- * ranges; default corresponds to +-1.0 Ga and +-1.3 Ga, respectively
- */
-#define HMC5843_RANGE_GAIN_OFFSET		0x05
-#define HMC5843_RANGE_GAIN_DEFAULT		0x01
-#define HMC5843_RANGE_GAIN_MASK		0xe0
-
-/* Device status */
-#define HMC5843_DATA_READY			0x01
-#define HMC5843_DATA_OUTPUT_LOCK		0x02
-
-/* Mode register configuration */
-#define HMC5843_MODE_CONVERSION_CONTINUOUS	0x00
-#define HMC5843_MODE_CONVERSION_SINGLE		0x01
-#define HMC5843_MODE_IDLE			0x02
-#define HMC5843_MODE_SLEEP			0x03
-#define HMC5843_MODE_MASK			0x03
-
-/*
- * HMC5843: Minimum data output rate
- * HMC5883: Typical data output rate
- */
-#define HMC5843_RATE_OFFSET			0x02
-#define HMC5843_RATE_DEFAULT			0x04
-#define HMC5843_RATE_MASK		0x1c
-
-/* Device measurement configuration */
-#define HMC5843_MEAS_CONF_NORMAL		0x00
-#define HMC5843_MEAS_CONF_POSITIVE_BIAS		0x01
-#define HMC5843_MEAS_CONF_NEGATIVE_BIAS		0x02
-#define HMC5843_MEAS_CONF_MASK			0x03
-
-/* Scaling factors: 10000000/Gain */
-static const int hmc5843_regval_to_nanoscale[] = {
-	6173, 7692, 10309, 12821, 18868, 21739, 25641, 35714
-};
-
-static const int hmc5883_regval_to_nanoscale[] = {
-	7812, 9766, 13021, 16287, 24096, 27701, 32573, 45662
-};
-
-static const int hmc5883l_regval_to_nanoscale[] = {
-	7299, 9174, 12195, 15152, 22727, 25641, 30303, 43478
-};
-
-/*
- * From the datasheet:
- * Value	| HMC5843		| HMC5883/HMC5883L
- *		| Data output rate (Hz)	| Data output rate (Hz)
- * 0		| 0.5			| 0.75
- * 1		| 1			| 1.5
- * 2		| 2			| 3
- * 3		| 5			| 7.5
- * 4		| 10 (default)		| 15
- * 5		| 20			| 30
- * 6		| 50			| 75
- * 7		| Not used		| Not used
- */
-static const int hmc5843_regval_to_samp_freq[][2] = {
-	{0, 500000}, {1, 0}, {2, 0}, {5, 0}, {10, 0}, {20, 0}, {50, 0}
-};
-
-static const int hmc5883_regval_to_samp_freq[][2] = {
-	{0, 750000}, {1, 500000}, {3, 0}, {7, 500000}, {15, 0}, {30, 0},
-	{75, 0}
-};
-
-static const int hmc5983_regval_to_samp_freq[][2] = {
-	{0, 750000}, {1, 500000}, {3, 0}, {7, 500000}, {15, 0}, {30, 0},
-	{75, 0}, {220, 0}
-};
-
-/* Describe chip variants */
-struct hmc5843_chip_info {
-	const struct iio_chan_spec *channels;
-	const int (*regval_to_samp_freq)[2];
-	const int n_regval_to_samp_freq;
-	const int *regval_to_nanoscale;
-	const int n_regval_to_nanoscale;
-};
-
-/* The lower two bits contain the current conversion mode */
-static s32 hmc5843_set_mode(struct hmc5843_data *data, u8 operating_mode)
-{
-	int ret;
-
-	mutex_lock(&data->lock);
-	ret = regmap_update_bits(data->regmap, HMC5843_MODE_REG,
-				 HMC5843_MODE_MASK, operating_mode);
-	mutex_unlock(&data->lock);
-
-	return ret;
-}
-
-static int hmc5843_wait_measurement(struct hmc5843_data *data)
-{
-	int tries = 150;
-	unsigned int val;
-	int ret;
-
-	while (tries-- > 0) {
-		ret = regmap_read(data->regmap, HMC5843_STATUS_REG, &val);
-		if (ret < 0)
-			return ret;
-		if (val & HMC5843_DATA_READY)
-			break;
-		msleep(20);
-	}
-
-	if (tries < 0) {
-		dev_err(data->dev, "data not ready\n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-/* Return the measurement value from the specified channel */
-static int hmc5843_read_measurement(struct hmc5843_data *data,
-				    int idx, int *val)
-{
-	__be16 values[3];
-	int ret;
-
-	mutex_lock(&data->lock);
-	ret = hmc5843_wait_measurement(data);
-	if (ret < 0) {
-		mutex_unlock(&data->lock);
-		return ret;
-	}
-	ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS,
-			       values, sizeof(values));
-	mutex_unlock(&data->lock);
-	if (ret < 0)
-		return ret;
-
-	*val = sign_extend32(be16_to_cpu(values[idx]), 15);
-	return IIO_VAL_INT;
-}
-
-/*
- * API for setting the measurement configuration to
- * Normal, Positive bias and Negative bias
- *
- * From the datasheet:
- * 0 - Normal measurement configuration (default): In normal measurement
- *     configuration the device follows normal measurement flow. Pins BP
- *     and BN are left floating and high impedance.
- *
- * 1 - Positive bias configuration: In positive bias configuration, a
- *     positive current is forced across the resistive load on pins BP
- *     and BN.
- *
- * 2 - Negative bias configuration. In negative bias configuration, a
- *     negative current is forced across the resistive load on pins BP
- *     and BN.
- *
- */
-static int hmc5843_set_meas_conf(struct hmc5843_data *data, u8 meas_conf)
-{
-	int ret;
-
-	mutex_lock(&data->lock);
-	ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_A,
-				 HMC5843_MEAS_CONF_MASK, meas_conf);
-	mutex_unlock(&data->lock);
-
-	return ret;
-}
-
-static
-ssize_t hmc5843_show_measurement_configuration(struct device *dev,
-					       struct device_attribute *attr,
-					       char *buf)
-{
-	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-	unsigned int val;
-	int ret;
-
-	ret = regmap_read(data->regmap, HMC5843_CONFIG_REG_A, &val);
-	if (ret)
-		return ret;
-	val &= HMC5843_MEAS_CONF_MASK;
-
-	return sprintf(buf, "%d\n", val);
-}
-
-static
-ssize_t hmc5843_set_measurement_configuration(struct device *dev,
-					      struct device_attribute *attr,
-					      const char *buf,
-					      size_t count)
-{
-	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-	unsigned long meas_conf = 0;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &meas_conf);
-	if (ret)
-		return ret;
-	if (meas_conf >= HMC5843_MEAS_CONF_MASK)
-		return -EINVAL;
-
-	ret = hmc5843_set_meas_conf(data, meas_conf);
-
-	return (ret < 0) ? ret : count;
-}
-
-static IIO_DEVICE_ATTR(meas_conf,
-			S_IWUSR | S_IRUGO,
-			hmc5843_show_measurement_configuration,
-			hmc5843_set_measurement_configuration,
-			0);
-
-static
-ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-	size_t len = 0;
-	int i;
-
-	for (i = 0; i < data->variant->n_regval_to_samp_freq; i++)
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-			"%d.%d ", data->variant->regval_to_samp_freq[i][0],
-			data->variant->regval_to_samp_freq[i][1]);
-
-	/* replace trailing space by newline */
-	buf[len - 1] = '\n';
-
-	return len;
-}
-
-static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail);
-
-static int hmc5843_set_samp_freq(struct hmc5843_data *data, u8 rate)
-{
-	int ret;
-
-	mutex_lock(&data->lock);
-	ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_A,
-				 HMC5843_RATE_MASK,
-				 rate << HMC5843_RATE_OFFSET);
-	mutex_unlock(&data->lock);
-
-	return ret;
-}
-
-static int hmc5843_get_samp_freq_index(struct hmc5843_data *data,
-				       int val, int val2)
-{
-	int i;
-
-	for (i = 0; i < data->variant->n_regval_to_samp_freq; i++)
-		if (val == data->variant->regval_to_samp_freq[i][0] &&
-		    val2 == data->variant->regval_to_samp_freq[i][1])
-			return i;
-
-	return -EINVAL;
-}
-
-static int hmc5843_set_range_gain(struct hmc5843_data *data, u8 range)
-{
-	int ret;
-
-	mutex_lock(&data->lock);
-	ret = regmap_update_bits(data->regmap, HMC5843_CONFIG_REG_B,
-				 HMC5843_RANGE_GAIN_MASK,
-				 range << HMC5843_RANGE_GAIN_OFFSET);
-	mutex_unlock(&data->lock);
-
-	return ret;
-}
-
-static ssize_t hmc5843_show_scale_avail(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-
-	size_t len = 0;
-	int i;
-
-	for (i = 0; i < data->variant->n_regval_to_nanoscale; i++)
-		len += scnprintf(buf + len, PAGE_SIZE - len,
-			"0.%09d ", data->variant->regval_to_nanoscale[i]);
-
-	/* replace trailing space by newline */
-	buf[len - 1] = '\n';
-
-	return len;
-}
-
-static IIO_DEVICE_ATTR(scale_available, S_IRUGO,
-	hmc5843_show_scale_avail, NULL, 0);
-
-static int hmc5843_get_scale_index(struct hmc5843_data *data, int val, int val2)
-{
-	int i;
-
-	if (val != 0)
-		return -EINVAL;
-
-	for (i = 0; i < data->variant->n_regval_to_nanoscale; i++)
-		if (val2 == data->variant->regval_to_nanoscale[i])
-			return i;
-
-	return -EINVAL;
-}
-
-static int hmc5843_read_raw(struct iio_dev *indio_dev,
-			    struct iio_chan_spec const *chan,
-			    int *val, int *val2, long mask)
-{
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	unsigned int rval;
-	int ret;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		return hmc5843_read_measurement(data, chan->scan_index, val);
-	case IIO_CHAN_INFO_SCALE:
-		ret = regmap_read(data->regmap, HMC5843_CONFIG_REG_B, &rval);
-		if (ret < 0)
-			return ret;
-		rval >>= HMC5843_RANGE_GAIN_OFFSET;
-		*val = 0;
-		*val2 = data->variant->regval_to_nanoscale[rval];
-		return IIO_VAL_INT_PLUS_NANO;
-	case IIO_CHAN_INFO_SAMP_FREQ:
-		ret = regmap_read(data->regmap, HMC5843_CONFIG_REG_A, &rval);
-		if (ret < 0)
-			return ret;
-		rval >>= HMC5843_RATE_OFFSET;
-		*val = data->variant->regval_to_samp_freq[rval][0];
-		*val2 = data->variant->regval_to_samp_freq[rval][1];
-		return IIO_VAL_INT_PLUS_MICRO;
-	}
-	return -EINVAL;
-}
-
-static int hmc5843_write_raw(struct iio_dev *indio_dev,
-			     struct iio_chan_spec const *chan,
-			     int val, int val2, long mask)
-{
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	int rate, range;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_SAMP_FREQ:
-		rate = hmc5843_get_samp_freq_index(data, val, val2);
-		if (rate < 0)
-			return -EINVAL;
-
-		return hmc5843_set_samp_freq(data, rate);
-	case IIO_CHAN_INFO_SCALE:
-		range = hmc5843_get_scale_index(data, val, val2);
-		if (range < 0)
-			return -EINVAL;
-
-		return hmc5843_set_range_gain(data, range);
-	default:
-		return -EINVAL;
-	}
-}
-
-static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev,
-				     struct iio_chan_spec const *chan,
-				     long mask)
-{
-	switch (mask) {
-	case IIO_CHAN_INFO_SAMP_FREQ:
-		return IIO_VAL_INT_PLUS_MICRO;
-	case IIO_CHAN_INFO_SCALE:
-		return IIO_VAL_INT_PLUS_NANO;
-	default:
-		return -EINVAL;
-	}
-}
-
-static irqreturn_t hmc5843_trigger_handler(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	int ret;
-
-	mutex_lock(&data->lock);
-	ret = hmc5843_wait_measurement(data);
-	if (ret < 0) {
-		mutex_unlock(&data->lock);
-		goto done;
-	}
-
-	ret = regmap_bulk_read(data->regmap, HMC5843_DATA_OUT_MSB_REGS,
-			       data->buffer, 3 * sizeof(__be16));
-
-	mutex_unlock(&data->lock);
-	if (ret < 0)
-		goto done;
-
-	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
-					   iio_get_time_ns());
-
-done:
-	iio_trigger_notify_done(indio_dev->trig);
-
-	return IRQ_HANDLED;
-}
-
-#define HMC5843_CHANNEL(axis, idx)					\
-	{								\
-		.type = IIO_MAGN,					\
-		.modified = 1,						\
-		.channel2 = IIO_MOD_##axis,				\
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
-			BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
-		.scan_index = idx,					\
-		.scan_type = {						\
-			.sign = 's',					\
-			.realbits = 16,					\
-			.storagebits = 16,				\
-			.endianness = IIO_BE,				\
-		},							\
-	}
-
-static const struct iio_chan_spec hmc5843_channels[] = {
-	HMC5843_CHANNEL(X, 0),
-	HMC5843_CHANNEL(Y, 1),
-	HMC5843_CHANNEL(Z, 2),
-	IIO_CHAN_SOFT_TIMESTAMP(3),
-};
-
-/* Beware: Y and Z are exchanged on HMC5883 and 5983 */
-static const struct iio_chan_spec hmc5883_channels[] = {
-	HMC5843_CHANNEL(X, 0),
-	HMC5843_CHANNEL(Z, 1),
-	HMC5843_CHANNEL(Y, 2),
-	IIO_CHAN_SOFT_TIMESTAMP(3),
-};
-
-static struct attribute *hmc5843_attributes[] = {
-	&iio_dev_attr_meas_conf.dev_attr.attr,
-	&iio_dev_attr_scale_available.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group hmc5843_group = {
-	.attrs = hmc5843_attributes,
-};
-
-static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = {
-	[HMC5843_ID] = {
-		.channels = hmc5843_channels,
-		.regval_to_samp_freq = hmc5843_regval_to_samp_freq,
-		.n_regval_to_samp_freq =
-				ARRAY_SIZE(hmc5843_regval_to_samp_freq),
-		.regval_to_nanoscale = hmc5843_regval_to_nanoscale,
-		.n_regval_to_nanoscale =
-				ARRAY_SIZE(hmc5843_regval_to_nanoscale),
-	},
-	[HMC5883_ID] = {
-		.channels = hmc5883_channels,
-		.regval_to_samp_freq = hmc5883_regval_to_samp_freq,
-		.n_regval_to_samp_freq =
-				ARRAY_SIZE(hmc5883_regval_to_samp_freq),
-		.regval_to_nanoscale = hmc5883_regval_to_nanoscale,
-		.n_regval_to_nanoscale =
-				ARRAY_SIZE(hmc5883_regval_to_nanoscale),
-	},
-	[HMC5883L_ID] = {
-		.channels = hmc5883_channels,
-		.regval_to_samp_freq = hmc5883_regval_to_samp_freq,
-		.n_regval_to_samp_freq =
-				ARRAY_SIZE(hmc5883_regval_to_samp_freq),
-		.regval_to_nanoscale = hmc5883l_regval_to_nanoscale,
-		.n_regval_to_nanoscale =
-				ARRAY_SIZE(hmc5883l_regval_to_nanoscale),
-	},
-	[HMC5983_ID] = {
-		.channels = hmc5883_channels,
-		.regval_to_samp_freq = hmc5983_regval_to_samp_freq,
-		.n_regval_to_samp_freq =
-				ARRAY_SIZE(hmc5983_regval_to_samp_freq),
-		.regval_to_nanoscale = hmc5883l_regval_to_nanoscale,
-		.n_regval_to_nanoscale =
-				ARRAY_SIZE(hmc5883l_regval_to_nanoscale),
-	}
-};
-
-static int hmc5843_init(struct hmc5843_data *data)
-{
-	int ret;
-	u8 id[3];
-
-	ret = regmap_bulk_read(data->regmap, HMC5843_ID_REG,
-			       id, ARRAY_SIZE(id));
-	if (ret < 0)
-		return ret;
-	if (id[0] != 'H' || id[1] != '4' || id[2] != '3') {
-		dev_err(data->dev, "no HMC5843/5883/5883L/5983 sensor\n");
-		return -ENODEV;
-	}
-
-	ret = hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
-	if (ret < 0)
-		return ret;
-	ret = hmc5843_set_samp_freq(data, HMC5843_RATE_DEFAULT);
-	if (ret < 0)
-		return ret;
-	ret = hmc5843_set_range_gain(data, HMC5843_RANGE_GAIN_DEFAULT);
-	if (ret < 0)
-		return ret;
-	return hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
-}
-
-static const struct iio_info hmc5843_info = {
-	.attrs = &hmc5843_group,
-	.read_raw = &hmc5843_read_raw,
-	.write_raw = &hmc5843_write_raw,
-	.write_raw_get_fmt = &hmc5843_write_raw_get_fmt,
-	.driver_module = THIS_MODULE,
-};
-
-static const unsigned long hmc5843_scan_masks[] = {0x7, 0};
-
-int hmc5843_common_suspend(struct device *dev)
-{
-	return hmc5843_set_mode(iio_priv(dev_get_drvdata(dev)),
-			HMC5843_MODE_CONVERSION_CONTINUOUS);
-}
-EXPORT_SYMBOL(hmc5843_common_suspend);
-
-int hmc5843_common_resume(struct device *dev)
-{
-	return hmc5843_set_mode(iio_priv(dev_get_drvdata(dev)),
-				HMC5843_MODE_SLEEP);
-}
-EXPORT_SYMBOL(hmc5843_common_resume);
-
-int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
-			 enum hmc5843_ids id)
-{
-	struct hmc5843_data *data;
-	struct iio_dev *indio_dev;
-	int ret;
-
-	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	dev_set_drvdata(dev, indio_dev);
-
-	/* default settings at probe */
-	data = iio_priv(indio_dev);
-	data->dev = dev;
-	data->regmap = regmap;
-	data->variant = &hmc5843_chip_info_tbl[id];
-	mutex_init(&data->lock);
-
-	indio_dev->dev.parent = dev;
-	indio_dev->name = dev->driver->name;
-	indio_dev->info = &hmc5843_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = data->variant->channels;
-	indio_dev->num_channels = 4;
-	indio_dev->available_scan_masks = hmc5843_scan_masks;
-
-	ret = hmc5843_init(data);
-	if (ret < 0)
-		return ret;
-
-	ret = iio_triggered_buffer_setup(indio_dev, NULL,
-					 hmc5843_trigger_handler, NULL);
-	if (ret < 0)
-		goto buffer_setup_err;
-
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		goto buffer_cleanup;
-
-	return 0;
-
-buffer_cleanup:
-	iio_triggered_buffer_cleanup(indio_dev);
-buffer_setup_err:
-	hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP);
-	return ret;
-}
-EXPORT_SYMBOL(hmc5843_common_probe);
-
-int hmc5843_common_remove(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-
-	iio_device_unregister(indio_dev);
-	iio_triggered_buffer_cleanup(indio_dev);
-
-	/*  sleep mode to save power */
-	hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP);
-
-	return 0;
-}
-EXPORT_SYMBOL(hmc5843_common_remove);
-
-MODULE_AUTHOR("Shubhrajyoti Datta <shubhrajyoti@ti.com>");
-MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 core driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/magnetometer/hmc5843_i2c.c b/drivers/staging/iio/magnetometer/hmc5843_i2c.c
deleted file mode 100644
index ff08667fa2f6..000000000000
--- a/drivers/staging/iio/magnetometer/hmc5843_i2c.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * i2c driver for hmc5843/5843/5883/5883l/5983
- *
- * Split from hmc5843.c
- * Copyright (C) Josef Gajdusek <atx@atx.name>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * */
-
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/regmap.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/triggered_buffer.h>
-
-#include "hmc5843.h"
-
-static const struct regmap_range hmc5843_readable_ranges[] = {
-	regmap_reg_range(0, HMC5843_ID_END),
-};
-
-static const struct regmap_access_table hmc5843_readable_table = {
-	.yes_ranges = hmc5843_readable_ranges,
-	.n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges),
-};
-
-static const struct regmap_range hmc5843_writable_ranges[] = {
-	regmap_reg_range(0, HMC5843_MODE_REG),
-};
-
-static const struct regmap_access_table hmc5843_writable_table = {
-	.yes_ranges = hmc5843_writable_ranges,
-	.n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges),
-};
-
-static const struct regmap_range hmc5843_volatile_ranges[] = {
-	regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG),
-};
-
-static const struct regmap_access_table hmc5843_volatile_table = {
-	.yes_ranges = hmc5843_volatile_ranges,
-	.n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges),
-};
-
-static const struct regmap_config hmc5843_i2c_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 8,
-
-	.rd_table = &hmc5843_readable_table,
-	.wr_table = &hmc5843_writable_table,
-	.volatile_table = &hmc5843_volatile_table,
-
-	.cache_type = REGCACHE_RBTREE,
-};
-
-static int hmc5843_i2c_probe(struct i2c_client *cli,
-			     const struct i2c_device_id *id)
-{
-	return hmc5843_common_probe(&cli->dev,
-			devm_regmap_init_i2c(cli, &hmc5843_i2c_regmap_config),
-			id->driver_data);
-}
-
-static int hmc5843_i2c_remove(struct i2c_client *client)
-{
-	return hmc5843_common_remove(&client->dev);
-}
-
-static const struct i2c_device_id hmc5843_id[] = {
-	{ "hmc5843", HMC5843_ID },
-	{ "hmc5883", HMC5883_ID },
-	{ "hmc5883l", HMC5883L_ID },
-	{ "hmc5983", HMC5983_ID },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, hmc5843_id);
-
-static const struct of_device_id hmc5843_of_match[] = {
-	{ .compatible = "honeywell,hmc5843", .data = (void *)HMC5843_ID },
-	{ .compatible = "honeywell,hmc5883", .data = (void *)HMC5883_ID },
-	{ .compatible = "honeywell,hmc5883l", .data = (void *)HMC5883L_ID },
-	{ .compatible = "honeywell,hmc5983", .data = (void *)HMC5983_ID },
-	{}
-};
-MODULE_DEVICE_TABLE(of, hmc5843_of_match);
-
-static struct i2c_driver hmc5843_driver = {
-	.driver = {
-		.name	= "hmc5843",
-		.pm	= HMC5843_PM_OPS,
-		.of_match_table = hmc5843_of_match,
-	},
-	.id_table	= hmc5843_id,
-	.probe		= hmc5843_i2c_probe,
-	.remove		= hmc5843_i2c_remove,
-};
-module_i2c_driver(hmc5843_driver);
-
-MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>");
-MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/magnetometer/hmc5843_spi.c b/drivers/staging/iio/magnetometer/hmc5843_spi.c
deleted file mode 100644
index 8e658f736e1f..000000000000
--- a/drivers/staging/iio/magnetometer/hmc5843_spi.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * SPI driver for hmc5983
- *
- * Copyright (C) Josef Gajdusek <atx@atx.name>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * */
-
-#include <linux/module.h>
-#include <linux/spi/spi.h>
-#include <linux/iio/iio.h>
-
-#include "hmc5843.h"
-
-static const struct regmap_range hmc5843_readable_ranges[] = {
-		regmap_reg_range(0, HMC5843_ID_END),
-};
-
-static const struct regmap_access_table hmc5843_readable_table = {
-		.yes_ranges = hmc5843_readable_ranges,
-		.n_yes_ranges = ARRAY_SIZE(hmc5843_readable_ranges),
-};
-
-static const struct regmap_range hmc5843_writable_ranges[] = {
-		regmap_reg_range(0, HMC5843_MODE_REG),
-};
-
-static const struct regmap_access_table hmc5843_writable_table = {
-		.yes_ranges = hmc5843_writable_ranges,
-		.n_yes_ranges = ARRAY_SIZE(hmc5843_writable_ranges),
-};
-
-static const struct regmap_range hmc5843_volatile_ranges[] = {
-		regmap_reg_range(HMC5843_DATA_OUT_MSB_REGS, HMC5843_STATUS_REG),
-};
-
-static const struct regmap_access_table hmc5843_volatile_table = {
-		.yes_ranges = hmc5843_volatile_ranges,
-		.n_yes_ranges = ARRAY_SIZE(hmc5843_volatile_ranges),
-};
-
-static const struct regmap_config hmc5843_spi_regmap_config = {
-		.reg_bits = 8,
-		.val_bits = 8,
-
-		.rd_table = &hmc5843_readable_table,
-		.wr_table = &hmc5843_writable_table,
-		.volatile_table = &hmc5843_volatile_table,
-
-		/* Autoincrement address pointer */
-		.read_flag_mask = 0xc0,
-
-		.cache_type = REGCACHE_RBTREE,
-};
-
-static int hmc5843_spi_probe(struct spi_device *spi)
-{
-	int ret;
-
-	spi->mode = SPI_MODE_3;
-	spi->max_speed_hz = 8000000;
-	spi->bits_per_word = 8;
-	ret = spi_setup(spi);
-	if (ret)
-		return ret;
-
-	return hmc5843_common_probe(&spi->dev,
-			devm_regmap_init_spi(spi, &hmc5843_spi_regmap_config),
-			HMC5983_ID);
-}
-
-static int hmc5843_spi_remove(struct spi_device *spi)
-{
-	return hmc5843_common_remove(&spi->dev);
-}
-
-static const struct spi_device_id hmc5843_id[] = {
-	{ "hmc5983", HMC5983_ID },
-	{ }
-};
-
-static struct spi_driver hmc5843_driver = {
-		.driver = {
-				.name = "hmc5843",
-				.pm = HMC5843_PM_OPS,
-				.owner = THIS_MODULE,
-		},
-		.id_table = hmc5843_id,
-		.probe = hmc5843_spi_probe,
-		.remove = hmc5843_spi_remove,
-};
-
-module_spi_driver(hmc5843_driver);
-
-MODULE_AUTHOR("Josef Gajdusek <atx@atx.name>");
-MODULE_DESCRIPTION("HMC5983 SPI driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/iio/meter/Kconfig b/drivers/staging/iio/meter/Kconfig
deleted file mode 100644
index 64cd3704ec6e..000000000000
--- a/drivers/staging/iio/meter/Kconfig
+++ /dev/null
@@ -1,78 +0,0 @@
-#
-# IIO meter drivers configuration
-#
-menu "Active energy metering IC"
-
-config ADE7753
-	tristate "Analog Devices ADE7753/6 Single-Phase Multifunction Metering IC Driver"
-	depends on SPI
-	help
-	  Say yes here to build support for Analog Devices ADE7753 Single-Phase Multifunction
-	  Metering IC with di/dt Sensor Interface.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ade7753.
-
-config ADE7754
-	tristate "Analog Devices ADE7754 Polyphase Multifunction Energy Metering IC Driver"
-	depends on SPI
-	help
-	  Say yes here to build support for Analog Devices ADE7754 Polyphase
-	  Multifunction Energy Metering IC Driver.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ade7754.
-
-config ADE7758
-	tristate "Analog Devices ADE7758 Poly Phase Multifunction Energy Metering IC Driver"
-	depends on SPI
-	select IIO_TRIGGER if IIO_BUFFER
-	select IIO_KFIFO_BUF if IIO_BUFFER
-	help
-	  Say yes here to build support for Analog Devices ADE7758 Polyphase
-	  Multifunction Energy Metering IC with Per Phase Information Driver.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ade7758.
-
-config ADE7759
-	tristate "Analog Devices ADE7759 Active Energy Metering IC Driver"
-	depends on SPI
-	help
-	  Say yes here to build support for Analog Devices ADE7758 Active Energy
-	  Metering IC with di/dt Sensor Interface.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ade7759.
-
-config ADE7854
-	tristate "Analog Devices ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC Driver"
-	depends on SPI || I2C
-	help
-	  Say yes here to build support for Analog Devices ADE7854/58/68/78 Polyphase
-	  Multifunction Energy Metering IC Driver.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ade7854.
-
-config ADE7854_I2C
-	tristate "support I2C bus connection"
-	depends on ADE7854 && I2C
-	default y
-	help
-	  Say Y here if you have ADE7854/58/68/78 hooked to an I2C bus.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ade7854-i2c.
-
-config ADE7854_SPI
-	tristate "support SPI bus connection"
-	depends on ADE7854 && SPI
-	default y
-	help
-	  Say Y here if you have ADE7854/58/68/78 hooked to a SPI bus.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ade7854-spi.
-
-endmenu
diff --git a/drivers/staging/iio/meter/Makefile b/drivers/staging/iio/meter/Makefile
deleted file mode 100644
index de3863d6b078..000000000000
--- a/drivers/staging/iio/meter/Makefile
+++ /dev/null
@@ -1,15 +0,0 @@
-#
-# Makefile for metering ic drivers
-#
-
-obj-$(CONFIG_ADE7753) += ade7753.o
-obj-$(CONFIG_ADE7754) += ade7754.o
-
-ade7758-y             := ade7758_core.o
-ade7758-$(CONFIG_IIO_BUFFER) += ade7758_ring.o ade7758_trigger.o
-obj-$(CONFIG_ADE7758) += ade7758.o
-
-obj-$(CONFIG_ADE7759) += ade7759.o
-obj-$(CONFIG_ADE7854) += ade7854.o
-obj-$(CONFIG_ADE7854_I2C) += ade7854-i2c.o
-obj-$(CONFIG_ADE7854_SPI) += ade7854-spi.o
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
deleted file mode 100644
index ffc7f0ddff14..000000000000
--- a/drivers/staging/iio/meter/ade7753.c
+++ /dev/null
@@ -1,547 +0,0 @@
-/*
- * ADE7753 Single-Phase Multifunction Metering IC with di/dt Sensor Interface
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include "meter.h"
-#include "ade7753.h"
-
-static int ade7753_spi_write_reg_8(struct device *dev,
-				   u8 reg_address,
-				   u8 val)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7753_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7753_WRITE_REG(reg_address);
-	st->tx[1] = val;
-
-	ret = spi_write(st->us, st->tx, 2);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7753_spi_write_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7753_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7753_WRITE_REG(reg_address);
-	st->tx[1] = (value >> 8) & 0xFF;
-	st->tx[2] = value & 0xFF;
-	ret = spi_write(st->us, st->tx, 3);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7753_spi_read_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7753_state *st = iio_priv(indio_dev);
-	ssize_t ret;
-
-	ret = spi_w8r8(st->us, ADE7753_READ_REG(reg_address));
-	if (ret < 0) {
-		dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X",
-				reg_address);
-		return ret;
-	}
-	*val = ret;
-
-	return 0;
-}
-
-static int ade7753_spi_read_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7753_state *st = iio_priv(indio_dev);
-	ssize_t ret;
-
-	ret = spi_w8r16be(st->us, ADE7753_READ_REG(reg_address));
-	if (ret < 0) {
-		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
-			reg_address);
-		return ret;
-	}
-
-	*val = ret;
-
-	return 0;
-}
-
-static int ade7753_spi_read_reg_24(struct device *dev,
-		u8 reg_address,
-		u32 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7753_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 1,
-		}, {
-			.rx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 3,
-		}
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7753_READ_REG(reg_address);
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = (st->rx[0] << 16) | (st->rx[1] << 8) | st->rx[2];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static ssize_t ade7753_read_8bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u8 val;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7753_spi_read_reg_8(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7753_read_16bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 val;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7753_spi_read_reg_16(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7753_read_24bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u32 val;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7753_spi_read_reg_24(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7753_write_8bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u8 val;
-
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7753_spi_write_reg_8(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t ade7753_write_16bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u16 val;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7753_spi_write_reg_16(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static int ade7753_reset(struct device *dev)
-{
-	u16 val;
-
-	ade7753_spi_read_reg_16(dev, ADE7753_MODE, &val);
-	val |= 1 << 6; /* Software Chip Reset */
-
-	return ade7753_spi_write_reg_16(dev, ADE7753_MODE, val);
-}
-
-static IIO_DEV_ATTR_AENERGY(ade7753_read_24bit, ADE7753_AENERGY);
-static IIO_DEV_ATTR_LAENERGY(ade7753_read_24bit, ADE7753_LAENERGY);
-static IIO_DEV_ATTR_VAENERGY(ade7753_read_24bit, ADE7753_VAENERGY);
-static IIO_DEV_ATTR_LVAENERGY(ade7753_read_24bit, ADE7753_LVAENERGY);
-static IIO_DEV_ATTR_CFDEN(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_CFDEN);
-static IIO_DEV_ATTR_CFNUM(S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_CFNUM);
-static IIO_DEV_ATTR_CHKSUM(ade7753_read_8bit, ADE7753_CHKSUM);
-static IIO_DEV_ATTR_PHCAL(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_PHCAL);
-static IIO_DEV_ATTR_APOS(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_APOS);
-static IIO_DEV_ATTR_SAGCYC(S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_SAGCYC);
-static IIO_DEV_ATTR_SAGLVL(S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_SAGLVL);
-static IIO_DEV_ATTR_LINECYC(S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_LINECYC);
-static IIO_DEV_ATTR_WDIV(S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_WDIV);
-static IIO_DEV_ATTR_IRMS(S_IWUSR | S_IRUGO,
-		ade7753_read_24bit,
-		NULL,
-		ADE7753_IRMS);
-static IIO_DEV_ATTR_VRMS(S_IRUGO,
-		ade7753_read_24bit,
-		NULL,
-		ADE7753_VRMS);
-static IIO_DEV_ATTR_IRMSOS(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_IRMSOS);
-static IIO_DEV_ATTR_VRMSOS(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_VRMSOS);
-static IIO_DEV_ATTR_WGAIN(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_WGAIN);
-static IIO_DEV_ATTR_VAGAIN(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_VAGAIN);
-static IIO_DEV_ATTR_PGA_GAIN(S_IWUSR | S_IRUGO,
-		ade7753_read_16bit,
-		ade7753_write_16bit,
-		ADE7753_GAIN);
-static IIO_DEV_ATTR_IPKLVL(S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_IPKLVL);
-static IIO_DEV_ATTR_VPKLVL(S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_VPKLVL);
-static IIO_DEV_ATTR_IPEAK(S_IRUGO,
-		ade7753_read_24bit,
-		NULL,
-		ADE7753_IPEAK);
-static IIO_DEV_ATTR_VPEAK(S_IRUGO,
-		ade7753_read_24bit,
-		NULL,
-		ADE7753_VPEAK);
-static IIO_DEV_ATTR_VPERIOD(S_IRUGO,
-		ade7753_read_16bit,
-		NULL,
-		ADE7753_PERIOD);
-static IIO_DEV_ATTR_CH_OFF(1, S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_CH1OS);
-static IIO_DEV_ATTR_CH_OFF(2, S_IWUSR | S_IRUGO,
-		ade7753_read_8bit,
-		ade7753_write_8bit,
-		ADE7753_CH2OS);
-
-static int ade7753_set_irq(struct device *dev, bool enable)
-{
-	int ret;
-	u8 irqen;
-
-	ret = ade7753_spi_read_reg_8(dev, ADE7753_IRQEN, &irqen);
-	if (ret)
-		goto error_ret;
-
-	if (enable)
-		irqen |= 1 << 3; /* Enables an interrupt when a data is
-				    present in the waveform register */
-	else
-		irqen &= ~(1 << 3);
-
-	ret = ade7753_spi_write_reg_8(dev, ADE7753_IRQEN, irqen);
-
-error_ret:
-	return ret;
-}
-
-/* Power down the device */
-static int ade7753_stop_device(struct device *dev)
-{
-	u16 val;
-
-	ade7753_spi_read_reg_16(dev, ADE7753_MODE, &val);
-	val |= 1 << 4;  /* AD converters can be turned off */
-
-	return ade7753_spi_write_reg_16(dev, ADE7753_MODE, val);
-}
-
-static int ade7753_initial_setup(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct device *dev = &indio_dev->dev;
-	struct ade7753_state *st = iio_priv(indio_dev);
-
-	/* use low spi speed for init */
-	st->us->mode = SPI_MODE_3;
-	spi_setup(st->us);
-
-	/* Disable IRQ */
-	ret = ade7753_set_irq(dev, false);
-	if (ret) {
-		dev_err(dev, "disable irq failed");
-		goto err_ret;
-	}
-
-	ade7753_reset(dev);
-	msleep(ADE7753_STARTUP_DELAY);
-
-err_ret:
-	return ret;
-}
-
-static ssize_t ade7753_read_frequency(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 t;
-	int sps;
-
-	ret = ade7753_spi_read_reg_16(dev, ADE7753_MODE, &t);
-	if (ret)
-		return ret;
-
-	t = (t >> 11) & 0x3;
-	sps = 27900 / (1 + t);
-
-	return sprintf(buf, "%d\n", sps);
-}
-
-static ssize_t ade7753_write_frequency(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7753_state *st = iio_priv(indio_dev);
-	u16 val;
-	int ret;
-	u16 reg, t;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		return ret;
-	if (val == 0)
-		return -EINVAL;
-
-	mutex_lock(&indio_dev->mlock);
-
-	t = 27900 / val;
-	if (t > 0)
-		t--;
-
-	if (t > 1)
-		st->us->max_speed_hz = ADE7753_SPI_SLOW;
-	else
-		st->us->max_speed_hz = ADE7753_SPI_FAST;
-
-	ret = ade7753_spi_read_reg_16(dev, ADE7753_MODE, &reg);
-	if (ret)
-		goto out;
-
-	reg &= ~(3 << 11);
-	reg |= t << 11;
-
-	ret = ade7753_spi_write_reg_16(dev, ADE7753_MODE, reg);
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static IIO_DEV_ATTR_TEMP_RAW(ade7753_read_8bit);
-static IIO_CONST_ATTR(in_temp_offset, "-25 C");
-static IIO_CONST_ATTR(in_temp_scale, "0.67 C");
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-		ade7753_read_frequency,
-		ade7753_write_frequency);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("27900 14000 7000 3500");
-
-static struct attribute *ade7753_attributes[] = {
-	&iio_dev_attr_in_temp_raw.dev_attr.attr,
-	&iio_const_attr_in_temp_offset.dev_attr.attr,
-	&iio_const_attr_in_temp_scale.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	&iio_dev_attr_phcal.dev_attr.attr,
-	&iio_dev_attr_cfden.dev_attr.attr,
-	&iio_dev_attr_aenergy.dev_attr.attr,
-	&iio_dev_attr_laenergy.dev_attr.attr,
-	&iio_dev_attr_vaenergy.dev_attr.attr,
-	&iio_dev_attr_lvaenergy.dev_attr.attr,
-	&iio_dev_attr_cfnum.dev_attr.attr,
-	&iio_dev_attr_apos.dev_attr.attr,
-	&iio_dev_attr_sagcyc.dev_attr.attr,
-	&iio_dev_attr_saglvl.dev_attr.attr,
-	&iio_dev_attr_linecyc.dev_attr.attr,
-	&iio_dev_attr_chksum.dev_attr.attr,
-	&iio_dev_attr_pga_gain.dev_attr.attr,
-	&iio_dev_attr_wgain.dev_attr.attr,
-	&iio_dev_attr_choff_1.dev_attr.attr,
-	&iio_dev_attr_choff_2.dev_attr.attr,
-	&iio_dev_attr_wdiv.dev_attr.attr,
-	&iio_dev_attr_irms.dev_attr.attr,
-	&iio_dev_attr_vrms.dev_attr.attr,
-	&iio_dev_attr_irmsos.dev_attr.attr,
-	&iio_dev_attr_vrmsos.dev_attr.attr,
-	&iio_dev_attr_vagain.dev_attr.attr,
-	&iio_dev_attr_ipklvl.dev_attr.attr,
-	&iio_dev_attr_vpklvl.dev_attr.attr,
-	&iio_dev_attr_ipeak.dev_attr.attr,
-	&iio_dev_attr_vpeak.dev_attr.attr,
-	&iio_dev_attr_vperiod.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ade7753_attribute_group = {
-	.attrs = ade7753_attributes,
-};
-
-static const struct iio_info ade7753_info = {
-	.attrs = &ade7753_attribute_group,
-	.driver_module = THIS_MODULE,
-};
-
-static int ade7753_probe(struct spi_device *spi)
-{
-	int ret;
-	struct ade7753_state *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	st = iio_priv(indio_dev);
-	st->us = spi;
-	mutex_init(&st->buf_lock);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &ade7753_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	/* Get the device into a sane initial state */
-	ret = ade7753_initial_setup(indio_dev);
-	if (ret)
-		return ret;
-
-	return iio_device_register(indio_dev);
-}
-
-/* fixme, confirm ordering in this function */
-static int ade7753_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-
-	iio_device_unregister(indio_dev);
-	ade7753_stop_device(&indio_dev->dev);
-
-	return 0;
-}
-
-static struct spi_driver ade7753_driver = {
-	.driver = {
-		.name = "ade7753",
-		.owner = THIS_MODULE,
-	},
-	.probe = ade7753_probe,
-	.remove = ade7753_remove,
-};
-module_spi_driver(ade7753_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADE7753/6 Single-Phase Multifunction Meter");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ade7753");
diff --git a/drivers/staging/iio/meter/ade7753.h b/drivers/staging/iio/meter/ade7753.h
deleted file mode 100644
index a9d93cc1c414..000000000000
--- a/drivers/staging/iio/meter/ade7753.h
+++ /dev/null
@@ -1,72 +0,0 @@
-#ifndef _ADE7753_H
-#define _ADE7753_H
-
-#define ADE7753_WAVEFORM   0x01
-#define ADE7753_AENERGY    0x02
-#define ADE7753_RAENERGY   0x03
-#define ADE7753_LAENERGY   0x04
-#define ADE7753_VAENERGY   0x05
-#define ADE7753_RVAENERGY  0x06
-#define ADE7753_LVAENERGY  0x07
-#define ADE7753_LVARENERGY 0x08
-#define ADE7753_MODE       0x09
-#define ADE7753_IRQEN      0x0A
-#define ADE7753_STATUS     0x0B
-#define ADE7753_RSTSTATUS  0x0C
-#define ADE7753_CH1OS      0x0D
-#define ADE7753_CH2OS      0x0E
-#define ADE7753_GAIN       0x0F
-#define ADE7753_PHCAL      0x10
-#define ADE7753_APOS       0x11
-#define ADE7753_WGAIN      0x12
-#define ADE7753_WDIV       0x13
-#define ADE7753_CFNUM      0x14
-#define ADE7753_CFDEN      0x15
-#define ADE7753_IRMS       0x16
-#define ADE7753_VRMS       0x17
-#define ADE7753_IRMSOS     0x18
-#define ADE7753_VRMSOS     0x19
-#define ADE7753_VAGAIN     0x1A
-#define ADE7753_VADIV      0x1B
-#define ADE7753_LINECYC    0x1C
-#define ADE7753_ZXTOUT     0x1D
-#define ADE7753_SAGCYC     0x1E
-#define ADE7753_SAGLVL     0x1F
-#define ADE7753_IPKLVL     0x20
-#define ADE7753_VPKLVL     0x21
-#define ADE7753_IPEAK      0x22
-#define ADE7753_RSTIPEAK   0x23
-#define ADE7753_VPEAK      0x24
-#define ADE7753_RSTVPEAK   0x25
-#define ADE7753_TEMP       0x26
-#define ADE7753_PERIOD     0x27
-#define ADE7753_TMODE      0x3D
-#define ADE7753_CHKSUM     0x3E
-#define ADE7753_DIEREV     0x3F
-
-#define ADE7753_READ_REG(a)    a
-#define ADE7753_WRITE_REG(a) ((a) | 0x80)
-
-#define ADE7753_MAX_TX    4
-#define ADE7753_MAX_RX    4
-#define ADE7753_STARTUP_DELAY 1
-
-#define ADE7753_SPI_SLOW	(u32)(300 * 1000)
-#define ADE7753_SPI_BURST	(u32)(1000 * 1000)
-#define ADE7753_SPI_FAST	(u32)(2000 * 1000)
-
-/**
- * struct ade7753_state - device instance specific data
- * @us:			actual spi_device
- * @tx:			transmit buffer
- * @rx:			receive buffer
- * @buf_lock:		mutex to protect tx and rx
- **/
-struct ade7753_state {
-	struct spi_device	*us;
-	struct mutex		buf_lock;
-	u8			tx[ADE7753_MAX_TX] ____cacheline_aligned;
-	u8			rx[ADE7753_MAX_RX];
-};
-
-#endif
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
deleted file mode 100644
index f12b2e50329b..000000000000
--- a/drivers/staging/iio/meter/ade7754.c
+++ /dev/null
@@ -1,588 +0,0 @@
-/*
- * ADE7754 Polyphase Multifunction Energy Metering IC Driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include "meter.h"
-#include "ade7754.h"
-
-static int ade7754_spi_write_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 val)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7754_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7754_WRITE_REG(reg_address);
-	st->tx[1] = val;
-
-	ret = spi_write(st->us, st->tx, 2);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7754_spi_write_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7754_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7754_WRITE_REG(reg_address);
-	st->tx[1] = (value >> 8) & 0xFF;
-	st->tx[2] = value & 0xFF;
-	ret = spi_write(st->us, st->tx, 3);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7754_spi_read_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7754_state *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = spi_w8r8(st->us, ADE7754_READ_REG(reg_address));
-	if (ret < 0) {
-		dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X",
-				reg_address);
-		return ret;
-	}
-	*val = ret;
-
-	return 0;
-}
-
-static int ade7754_spi_read_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7754_state *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = spi_w8r16be(st->us, ADE7754_READ_REG(reg_address));
-	if (ret < 0) {
-		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
-			reg_address);
-		return ret;
-	}
-
-	*val = ret;
-
-	return 0;
-}
-
-static int ade7754_spi_read_reg_24(struct device *dev,
-		u8 reg_address,
-		u32 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7754_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 4,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7754_READ_REG(reg_address);
-	st->tx[1] = 0;
-	st->tx[2] = 0;
-	st->tx[3] = 0;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = (st->rx[1] << 16) | (st->rx[2] << 8) | st->rx[3];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static ssize_t ade7754_read_8bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u8 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7754_spi_read_reg_8(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7754_read_16bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7754_spi_read_reg_16(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7754_read_24bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u32 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7754_spi_read_reg_24(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val & 0xFFFFFF);
-}
-
-static ssize_t ade7754_write_8bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u8 val;
-
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7754_spi_write_reg_8(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t ade7754_write_16bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u16 val;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7754_spi_write_reg_16(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static int ade7754_reset(struct device *dev)
-{
-	int ret;
-	u8 val;
-
-	ret = ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
-	if (ret < 0)
-		return ret;
-
-	val |= 1 << 6; /* Software Chip Reset */
-	return ade7754_spi_write_reg_8(dev, ADE7754_OPMODE, val);
-}
-
-static IIO_DEV_ATTR_AENERGY(ade7754_read_24bit, ADE7754_AENERGY);
-static IIO_DEV_ATTR_LAENERGY(ade7754_read_24bit, ADE7754_LAENERGY);
-static IIO_DEV_ATTR_VAENERGY(ade7754_read_24bit, ADE7754_VAENERGY);
-static IIO_DEV_ATTR_LVAENERGY(ade7754_read_24bit, ADE7754_LVAENERGY);
-static IIO_DEV_ATTR_VPEAK(S_IWUSR | S_IRUGO,
-		ade7754_read_8bit,
-		ade7754_write_8bit,
-		ADE7754_VPEAK);
-static IIO_DEV_ATTR_IPEAK(S_IWUSR | S_IRUGO,
-		ade7754_read_8bit,
-		ade7754_write_8bit,
-		ADE7754_VPEAK);
-static IIO_DEV_ATTR_APHCAL(S_IWUSR | S_IRUGO,
-		ade7754_read_8bit,
-		ade7754_write_8bit,
-		ADE7754_APHCAL);
-static IIO_DEV_ATTR_BPHCAL(S_IWUSR | S_IRUGO,
-		ade7754_read_8bit,
-		ade7754_write_8bit,
-		ADE7754_BPHCAL);
-static IIO_DEV_ATTR_CPHCAL(S_IWUSR | S_IRUGO,
-		ade7754_read_8bit,
-		ade7754_write_8bit,
-		ADE7754_CPHCAL);
-static IIO_DEV_ATTR_AAPOS(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_AAPOS);
-static IIO_DEV_ATTR_BAPOS(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_BAPOS);
-static IIO_DEV_ATTR_CAPOS(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_CAPOS);
-static IIO_DEV_ATTR_WDIV(S_IWUSR | S_IRUGO,
-		ade7754_read_8bit,
-		ade7754_write_8bit,
-		ADE7754_WDIV);
-static IIO_DEV_ATTR_VADIV(S_IWUSR | S_IRUGO,
-		ade7754_read_8bit,
-		ade7754_write_8bit,
-		ADE7754_VADIV);
-static IIO_DEV_ATTR_CFNUM(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_CFNUM);
-static IIO_DEV_ATTR_CFDEN(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_CFDEN);
-static IIO_DEV_ATTR_ACTIVE_POWER_A_GAIN(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_AAPGAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_B_GAIN(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_BAPGAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_C_GAIN(S_IWUSR | S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_CAPGAIN);
-static IIO_DEV_ATTR_AIRMS(S_IRUGO,
-		ade7754_read_24bit,
-		NULL,
-		ADE7754_AIRMS);
-static IIO_DEV_ATTR_BIRMS(S_IRUGO,
-		ade7754_read_24bit,
-		NULL,
-		ADE7754_BIRMS);
-static IIO_DEV_ATTR_CIRMS(S_IRUGO,
-		ade7754_read_24bit,
-		NULL,
-		ADE7754_CIRMS);
-static IIO_DEV_ATTR_AVRMS(S_IRUGO,
-		ade7754_read_24bit,
-		NULL,
-		ADE7754_AVRMS);
-static IIO_DEV_ATTR_BVRMS(S_IRUGO,
-		ade7754_read_24bit,
-		NULL,
-		ADE7754_BVRMS);
-static IIO_DEV_ATTR_CVRMS(S_IRUGO,
-		ade7754_read_24bit,
-		NULL,
-		ADE7754_CVRMS);
-static IIO_DEV_ATTR_AIRMSOS(S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_AIRMSOS);
-static IIO_DEV_ATTR_BIRMSOS(S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_BIRMSOS);
-static IIO_DEV_ATTR_CIRMSOS(S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_CIRMSOS);
-static IIO_DEV_ATTR_AVRMSOS(S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_AVRMSOS);
-static IIO_DEV_ATTR_BVRMSOS(S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_BVRMSOS);
-static IIO_DEV_ATTR_CVRMSOS(S_IRUGO,
-		ade7754_read_16bit,
-		ade7754_write_16bit,
-		ADE7754_CVRMSOS);
-
-static int ade7754_set_irq(struct device *dev, bool enable)
-{
-	int ret;
-	u16 irqen;
-
-	ret = ade7754_spi_read_reg_16(dev, ADE7754_IRQEN, &irqen);
-	if (ret)
-		goto error_ret;
-
-	if (enable)
-		irqen |= 1 << 14; /* Enables an interrupt when a data is
-				     present in the waveform register */
-	else
-		irqen &= ~(1 << 14);
-
-	ret = ade7754_spi_write_reg_16(dev, ADE7754_IRQEN, irqen);
-	if (ret)
-		goto error_ret;
-
-error_ret:
-	return ret;
-}
-
-/* Power down the device */
-static int ade7754_stop_device(struct device *dev)
-{
-	int ret;
-	u8 val;
-
-	ret = ade7754_spi_read_reg_8(dev, ADE7754_OPMODE, &val);
-	if (ret < 0) {
-		dev_err(dev, "unable to power down the device, error: %d",
-			ret);
-		return ret;
-	}
-
-	val |= 7 << 3;  /* ADE7754 powered down */
-	return ade7754_spi_write_reg_8(dev, ADE7754_OPMODE, val);
-}
-
-static int ade7754_initial_setup(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct ade7754_state *st = iio_priv(indio_dev);
-	struct device *dev = &indio_dev->dev;
-
-	/* use low spi speed for init */
-	st->us->mode = SPI_MODE_3;
-	spi_setup(st->us);
-
-	/* Disable IRQ */
-	ret = ade7754_set_irq(dev, false);
-	if (ret) {
-		dev_err(dev, "disable irq failed");
-		goto err_ret;
-	}
-
-	ade7754_reset(dev);
-	msleep(ADE7754_STARTUP_DELAY);
-
-err_ret:
-	return ret;
-}
-
-static ssize_t ade7754_read_frequency(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u8 t;
-	int sps;
-
-	ret = ade7754_spi_read_reg_8(dev,
-			ADE7754_WAVMODE,
-			&t);
-	if (ret)
-		return ret;
-
-	t = (t >> 3) & 0x3;
-	sps = 26000 / (1 + t);
-
-	return sprintf(buf, "%d\n", sps);
-}
-
-static ssize_t ade7754_write_frequency(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7754_state *st = iio_priv(indio_dev);
-	u16 val;
-	int ret;
-	u8 reg, t;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		return ret;
-	if (val == 0)
-		return -EINVAL;
-
-	mutex_lock(&indio_dev->mlock);
-
-	t = 26000 / val;
-	if (t > 0)
-		t--;
-
-	if (t > 1)
-		st->us->max_speed_hz = ADE7754_SPI_SLOW;
-	else
-		st->us->max_speed_hz = ADE7754_SPI_FAST;
-
-	ret = ade7754_spi_read_reg_8(dev, ADE7754_WAVMODE, &reg);
-	if (ret)
-		goto out;
-
-	reg &= ~(3 << 3);
-	reg |= t << 3;
-
-	ret = ade7754_spi_write_reg_8(dev, ADE7754_WAVMODE, reg);
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-static IIO_DEV_ATTR_TEMP_RAW(ade7754_read_8bit);
-static IIO_CONST_ATTR(in_temp_offset, "129 C");
-static IIO_CONST_ATTR(in_temp_scale, "4 C");
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-		ade7754_read_frequency,
-		ade7754_write_frequency);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("26000 13000 65000 33000");
-
-static struct attribute *ade7754_attributes[] = {
-	&iio_dev_attr_in_temp_raw.dev_attr.attr,
-	&iio_const_attr_in_temp_offset.dev_attr.attr,
-	&iio_const_attr_in_temp_scale.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	&iio_dev_attr_aenergy.dev_attr.attr,
-	&iio_dev_attr_laenergy.dev_attr.attr,
-	&iio_dev_attr_vaenergy.dev_attr.attr,
-	&iio_dev_attr_lvaenergy.dev_attr.attr,
-	&iio_dev_attr_vpeak.dev_attr.attr,
-	&iio_dev_attr_ipeak.dev_attr.attr,
-	&iio_dev_attr_aphcal.dev_attr.attr,
-	&iio_dev_attr_bphcal.dev_attr.attr,
-	&iio_dev_attr_cphcal.dev_attr.attr,
-	&iio_dev_attr_aapos.dev_attr.attr,
-	&iio_dev_attr_bapos.dev_attr.attr,
-	&iio_dev_attr_capos.dev_attr.attr,
-	&iio_dev_attr_wdiv.dev_attr.attr,
-	&iio_dev_attr_vadiv.dev_attr.attr,
-	&iio_dev_attr_cfnum.dev_attr.attr,
-	&iio_dev_attr_cfden.dev_attr.attr,
-	&iio_dev_attr_active_power_a_gain.dev_attr.attr,
-	&iio_dev_attr_active_power_b_gain.dev_attr.attr,
-	&iio_dev_attr_active_power_c_gain.dev_attr.attr,
-	&iio_dev_attr_airms.dev_attr.attr,
-	&iio_dev_attr_birms.dev_attr.attr,
-	&iio_dev_attr_cirms.dev_attr.attr,
-	&iio_dev_attr_avrms.dev_attr.attr,
-	&iio_dev_attr_bvrms.dev_attr.attr,
-	&iio_dev_attr_cvrms.dev_attr.attr,
-	&iio_dev_attr_airmsos.dev_attr.attr,
-	&iio_dev_attr_birmsos.dev_attr.attr,
-	&iio_dev_attr_cirmsos.dev_attr.attr,
-	&iio_dev_attr_avrmsos.dev_attr.attr,
-	&iio_dev_attr_bvrmsos.dev_attr.attr,
-	&iio_dev_attr_cvrmsos.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ade7754_attribute_group = {
-	.attrs = ade7754_attributes,
-};
-
-static const struct iio_info ade7754_info = {
-	.attrs = &ade7754_attribute_group,
-	.driver_module = THIS_MODULE,
-};
-
-static int ade7754_probe(struct spi_device *spi)
-{
-	int ret;
-	struct ade7754_state *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	st = iio_priv(indio_dev);
-	st->us = spi;
-	mutex_init(&st->buf_lock);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &ade7754_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	/* Get the device into a sane initial state */
-	ret = ade7754_initial_setup(indio_dev);
-	if (ret)
-		goto powerdown_on_error;
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto powerdown_on_error;
-	return ret;
-
-powerdown_on_error:
-	ade7754_stop_device(&indio_dev->dev);
-	return ret;
-}
-
-/* fixme, confirm ordering in this function */
-static int ade7754_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-
-	iio_device_unregister(indio_dev);
-	ade7754_stop_device(&indio_dev->dev);
-
-	return 0;
-}
-
-static struct spi_driver ade7754_driver = {
-	.driver = {
-		.name = "ade7754",
-		.owner = THIS_MODULE,
-	},
-	.probe = ade7754_probe,
-	.remove = ade7754_remove,
-};
-module_spi_driver(ade7754_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADE7754 Polyphase Multifunction Energy Metering IC Driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad7754");
diff --git a/drivers/staging/iio/meter/ade7754.h b/drivers/staging/iio/meter/ade7754.h
deleted file mode 100644
index e42ffc387a14..000000000000
--- a/drivers/staging/iio/meter/ade7754.h
+++ /dev/null
@@ -1,90 +0,0 @@
-#ifndef _ADE7754_H
-#define _ADE7754_H
-
-#define ADE7754_AENERGY   0x01
-#define ADE7754_RAENERGY  0x02
-#define ADE7754_LAENERGY  0x03
-#define ADE7754_VAENERGY  0x04
-#define ADE7754_RVAENERGY 0x05
-#define ADE7754_LVAENERGY 0x06
-#define ADE7754_PERIOD    0x07
-#define ADE7754_TEMP      0x08
-#define ADE7754_WFORM     0x09
-#define ADE7754_OPMODE    0x0A
-#define ADE7754_MMODE     0x0B
-#define ADE7754_WAVMODE   0x0C
-#define ADE7754_WATMODE   0x0D
-#define ADE7754_VAMODE    0x0E
-#define ADE7754_IRQEN     0x0F
-#define ADE7754_STATUS    0x10
-#define ADE7754_RSTATUS   0x11
-#define ADE7754_ZXTOUT    0x12
-#define ADE7754_LINCYC    0x13
-#define ADE7754_SAGCYC    0x14
-#define ADE7754_SAGLVL    0x15
-#define ADE7754_VPEAK     0x16
-#define ADE7754_IPEAK     0x17
-#define ADE7754_GAIN      0x18
-#define ADE7754_AWG       0x19
-#define ADE7754_BWG       0x1A
-#define ADE7754_CWG       0x1B
-#define ADE7754_AVAG      0x1C
-#define ADE7754_BVAG      0x1D
-#define ADE7754_CVAG      0x1E
-#define ADE7754_APHCAL    0x1F
-#define ADE7754_BPHCAL    0x20
-#define ADE7754_CPHCAL    0x21
-#define ADE7754_AAPOS     0x22
-#define ADE7754_BAPOS     0x23
-#define ADE7754_CAPOS     0x24
-#define ADE7754_CFNUM     0x25
-#define ADE7754_CFDEN     0x26
-#define ADE7754_WDIV      0x27
-#define ADE7754_VADIV     0x28
-#define ADE7754_AIRMS     0x29
-#define ADE7754_BIRMS     0x2A
-#define ADE7754_CIRMS     0x2B
-#define ADE7754_AVRMS     0x2C
-#define ADE7754_BVRMS     0x2D
-#define ADE7754_CVRMS     0x2E
-#define ADE7754_AIRMSOS   0x2F
-#define ADE7754_BIRMSOS   0x30
-#define ADE7754_CIRMSOS   0x31
-#define ADE7754_AVRMSOS   0x32
-#define ADE7754_BVRMSOS   0x33
-#define ADE7754_CVRMSOS   0x34
-#define ADE7754_AAPGAIN   0x35
-#define ADE7754_BAPGAIN   0x36
-#define ADE7754_CAPGAIN   0x37
-#define ADE7754_AVGAIN    0x38
-#define ADE7754_BVGAIN    0x39
-#define ADE7754_CVGAIN    0x3A
-#define ADE7754_CHKSUM    0x3E
-#define ADE7754_VERSION   0x3F
-
-#define ADE7754_READ_REG(a)    a
-#define ADE7754_WRITE_REG(a) ((a) | 0x80)
-
-#define ADE7754_MAX_TX    4
-#define ADE7754_MAX_RX    4
-#define ADE7754_STARTUP_DELAY 1
-
-#define ADE7754_SPI_SLOW	(u32)(300 * 1000)
-#define ADE7754_SPI_BURST	(u32)(1000 * 1000)
-#define ADE7754_SPI_FAST	(u32)(2000 * 1000)
-
-/**
- * struct ade7754_state - device instance specific data
- * @us:			actual spi_device
- * @buf_lock:		mutex to protect tx and rx
- * @tx:			transmit buffer
- * @rx:			receive buffer
- **/
-struct ade7754_state {
-	struct spi_device	*us;
-	struct mutex		buf_lock;
-	u8			tx[ADE7754_MAX_TX] ____cacheline_aligned;
-	u8			rx[ADE7754_MAX_RX];
-};
-
-#endif
diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h
deleted file mode 100644
index f6739e2c24b1..000000000000
--- a/drivers/staging/iio/meter/ade7758.h
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * ADE7758 Poly Phase Multifunction Energy Metering IC driver
- *
- * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#ifndef _ADE7758_H
-#define _ADE7758_H
-
-#define ADE7758_AWATTHR   0x01
-#define ADE7758_BWATTHR   0x02
-#define ADE7758_CWATTHR   0x03
-#define ADE7758_AVARHR    0x04
-#define ADE7758_BVARHR    0x05
-#define ADE7758_CVARHR    0x06
-#define ADE7758_AVAHR     0x07
-#define ADE7758_BVAHR     0x08
-#define ADE7758_CVAHR     0x09
-#define ADE7758_AIRMS     0x0A
-#define ADE7758_BIRMS     0x0B
-#define ADE7758_CIRMS     0x0C
-#define ADE7758_AVRMS     0x0D
-#define ADE7758_BVRMS     0x0E
-#define ADE7758_CVRMS     0x0F
-#define ADE7758_FREQ      0x10
-#define ADE7758_TEMP      0x11
-#define ADE7758_WFORM     0x12
-#define ADE7758_OPMODE    0x13
-#define ADE7758_MMODE     0x14
-#define ADE7758_WAVMODE   0x15
-#define ADE7758_COMPMODE  0x16
-#define ADE7758_LCYCMODE  0x17
-#define ADE7758_MASK      0x18
-#define ADE7758_STATUS    0x19
-#define ADE7758_RSTATUS   0x1A
-#define ADE7758_ZXTOUT    0x1B
-#define ADE7758_LINECYC   0x1C
-#define ADE7758_SAGCYC    0x1D
-#define ADE7758_SAGLVL    0x1E
-#define ADE7758_VPINTLVL  0x1F
-#define ADE7758_IPINTLVL  0x20
-#define ADE7758_VPEAK     0x21
-#define ADE7758_IPEAK     0x22
-#define ADE7758_GAIN      0x23
-#define ADE7758_AVRMSGAIN 0x24
-#define ADE7758_BVRMSGAIN 0x25
-#define ADE7758_CVRMSGAIN 0x26
-#define ADE7758_AIGAIN    0x27
-#define ADE7758_BIGAIN    0x28
-#define ADE7758_CIGAIN    0x29
-#define ADE7758_AWG       0x2A
-#define ADE7758_BWG       0x2B
-#define ADE7758_CWG       0x2C
-#define ADE7758_AVARG     0x2D
-#define ADE7758_BVARG     0x2E
-#define ADE7758_CVARG     0x2F
-#define ADE7758_AVAG      0x30
-#define ADE7758_BVAG      0x31
-#define ADE7758_CVAG      0x32
-#define ADE7758_AVRMSOS   0x33
-#define ADE7758_BVRMSOS   0x34
-#define ADE7758_CVRMSOS   0x35
-#define ADE7758_AIRMSOS   0x36
-#define ADE7758_BIRMSOS   0x37
-#define ADE7758_CIRMSOS   0x38
-#define ADE7758_AWAITOS   0x39
-#define ADE7758_BWAITOS   0x3A
-#define ADE7758_CWAITOS   0x3B
-#define ADE7758_AVAROS    0x3C
-#define ADE7758_BVAROS    0x3D
-#define ADE7758_CVAROS    0x3E
-#define ADE7758_APHCAL    0x3F
-#define ADE7758_BPHCAL    0x40
-#define ADE7758_CPHCAL    0x41
-#define ADE7758_WDIV      0x42
-#define ADE7758_VADIV     0x44
-#define ADE7758_VARDIV    0x43
-#define ADE7758_APCFNUM   0x45
-#define ADE7758_APCFDEN   0x46
-#define ADE7758_VARCFNUM  0x47
-#define ADE7758_VARCFDEN  0x48
-#define ADE7758_CHKSUM    0x7E
-#define ADE7758_VERSION   0x7F
-
-#define ADE7758_READ_REG(a)    a
-#define ADE7758_WRITE_REG(a) ((a) | 0x80)
-
-#define ADE7758_MAX_TX    8
-#define ADE7758_MAX_RX    4
-#define ADE7758_STARTUP_DELAY 1
-
-#define AD7758_NUM_WAVSEL	5
-#define AD7758_NUM_PHSEL	3
-#define AD7758_NUM_WAVESRC	(AD7758_NUM_WAVSEL * AD7758_NUM_PHSEL)
-
-#define AD7758_PHASE_A		0
-#define AD7758_PHASE_B		1
-#define AD7758_PHASE_C		2
-#define AD7758_CURRENT		0
-#define AD7758_VOLTAGE		1
-#define AD7758_ACT_PWR		2
-#define AD7758_REACT_PWR	3
-#define AD7758_APP_PWR		4
-#define AD7758_WT(p, w)		(((w) << 2) | (p))
-
-/**
- * struct ade7758_state - device instance specific data
- * @us:			actual spi_device
- * @trig:		data ready trigger registered with iio
- * @tx:			transmit buffer
- * @rx:			receive buffer
- * @buf_lock:		mutex to protect tx and rx
- **/
-struct ade7758_state {
-	struct spi_device	*us;
-	struct iio_trigger	*trig;
-	u8			*tx;
-	u8			*rx;
-	struct mutex		buf_lock;
-	struct spi_transfer	ring_xfer[4];
-	struct spi_message	ring_msg;
-	/*
-	 * DMA (thus cache coherency maintenance) requires the
-	 * transfer buffers to live in their own cache lines.
-	 */
-	unsigned char		rx_buf[8] ____cacheline_aligned;
-	unsigned char		tx_buf[8];
-
-};
-#ifdef CONFIG_IIO_BUFFER
-/* At the moment triggers are only used for ring buffer
- * filling. This may change!
- */
-
-void ade7758_remove_trigger(struct iio_dev *indio_dev);
-int ade7758_probe_trigger(struct iio_dev *indio_dev);
-
-ssize_t ade7758_read_data_from_ring(struct device *dev,
-		struct device_attribute *attr,
-		char *buf);
-
-
-int ade7758_configure_ring(struct iio_dev *indio_dev);
-void ade7758_unconfigure_ring(struct iio_dev *indio_dev);
-
-int ade7758_set_irq(struct device *dev, bool enable);
-
-int ade7758_spi_write_reg_8(struct device *dev,
-		u8 reg_address, u8 val);
-int ade7758_spi_read_reg_8(struct device *dev,
-		u8 reg_address, u8 *val);
-
-#else /* CONFIG_IIO_BUFFER */
-
-static inline void ade7758_remove_trigger(struct iio_dev *indio_dev)
-{
-}
-static inline int ade7758_probe_trigger(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-
-static int ade7758_configure_ring(struct iio_dev *indio_dev)
-{
-	return 0;
-}
-static inline void ade7758_unconfigure_ring(struct iio_dev *indio_dev)
-{
-}
-static inline int ade7758_initialize_ring(struct iio_ring_buffer *ring)
-{
-	return 0;
-}
-static inline void ade7758_uninitialize_ring(struct iio_dev *indio_dev)
-{
-}
-#endif /* CONFIG_IIO_BUFFER */
-
-#endif
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
deleted file mode 100644
index 77141ae1349d..000000000000
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ /dev/null
@@ -1,917 +0,0 @@
-/*
- * ADE7758 Poly Phase Multifunction Energy Metering IC driver
- *
- * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/iio/buffer.h>
-#include "meter.h"
-#include "ade7758.h"
-
-int ade7758_spi_write_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 val)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7758_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7758_WRITE_REG(reg_address);
-	st->tx[1] = val;
-
-	ret = spi_write(st->us, st->tx, 2);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7758_spi_write_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7758_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 3,
-		}
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7758_WRITE_REG(reg_address);
-	st->tx[1] = (value >> 8) & 0xFF;
-	st->tx[2] = value & 0xFF;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7758_spi_write_reg_24(struct device *dev,
-		u8 reg_address,
-		u32 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7758_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 4,
-		}
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7758_WRITE_REG(reg_address);
-	st->tx[1] = (value >> 16) & 0xFF;
-	st->tx[2] = (value >> 8) & 0xFF;
-	st->tx[3] = value & 0xFF;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-int ade7758_spi_read_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7758_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 1,
-			.delay_usecs = 4,
-		},
-		{
-			.tx_buf = &st->tx[1],
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 1,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7758_READ_REG(reg_address);
-	st->tx[1] = 0;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = st->rx[0];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7758_spi_read_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7758_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 1,
-			.delay_usecs = 4,
-		},
-		{
-			.tx_buf = &st->tx[1],
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 2,
-		},
-	};
-
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7758_READ_REG(reg_address);
-	st->tx[1] = 0;
-	st->tx[2] = 0;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-
-	*val = (st->rx[0] << 8) | st->rx[1];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7758_spi_read_reg_24(struct device *dev,
-		u8 reg_address,
-		u32 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7758_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 1,
-			.delay_usecs = 4,
-		},
-		{
-			.tx_buf = &st->tx[1],
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 3,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7758_READ_REG(reg_address);
-	st->tx[1] = 0;
-	st->tx[2] = 0;
-	st->tx[3] = 0;
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = (st->rx[0] << 16) | (st->rx[1] << 8) | st->rx[2];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static ssize_t ade7758_read_8bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u8 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7758_spi_read_reg_8(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7758_read_16bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7758_spi_read_reg_16(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7758_read_24bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u32 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7758_spi_read_reg_24(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val & 0xFFFFFF);
-}
-
-static ssize_t ade7758_write_8bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u8 val;
-
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7758_spi_write_reg_8(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t ade7758_write_16bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u16 val;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7758_spi_write_reg_16(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static int ade7758_reset(struct device *dev)
-{
-	int ret;
-	u8 val;
-
-	ret = ade7758_spi_read_reg_8(dev, ADE7758_OPMODE, &val);
-	if (ret < 0) {
-		dev_err(dev, "Failed to read opmode reg\n");
-		return ret;
-	}
-	val |= 1 << 6; /* Software Chip Reset */
-	ret = ade7758_spi_write_reg_8(dev, ADE7758_OPMODE, val);
-	if (ret < 0)
-		dev_err(dev, "Failed to write opmode reg\n");
-	return ret;
-}
-
-static IIO_DEV_ATTR_VPEAK(S_IWUSR | S_IRUGO,
-		ade7758_read_8bit,
-		ade7758_write_8bit,
-		ADE7758_VPEAK);
-static IIO_DEV_ATTR_IPEAK(S_IWUSR | S_IRUGO,
-		ade7758_read_8bit,
-		ade7758_write_8bit,
-		ADE7758_VPEAK);
-static IIO_DEV_ATTR_APHCAL(S_IWUSR | S_IRUGO,
-		ade7758_read_8bit,
-		ade7758_write_8bit,
-		ADE7758_APHCAL);
-static IIO_DEV_ATTR_BPHCAL(S_IWUSR | S_IRUGO,
-		ade7758_read_8bit,
-		ade7758_write_8bit,
-		ADE7758_BPHCAL);
-static IIO_DEV_ATTR_CPHCAL(S_IWUSR | S_IRUGO,
-		ade7758_read_8bit,
-		ade7758_write_8bit,
-		ADE7758_CPHCAL);
-static IIO_DEV_ATTR_WDIV(S_IWUSR | S_IRUGO,
-		ade7758_read_8bit,
-		ade7758_write_8bit,
-		ADE7758_WDIV);
-static IIO_DEV_ATTR_VADIV(S_IWUSR | S_IRUGO,
-		ade7758_read_8bit,
-		ade7758_write_8bit,
-		ADE7758_VADIV);
-static IIO_DEV_ATTR_AIRMS(S_IRUGO,
-		ade7758_read_24bit,
-		NULL,
-		ADE7758_AIRMS);
-static IIO_DEV_ATTR_BIRMS(S_IRUGO,
-		ade7758_read_24bit,
-		NULL,
-		ADE7758_BIRMS);
-static IIO_DEV_ATTR_CIRMS(S_IRUGO,
-		ade7758_read_24bit,
-		NULL,
-		ADE7758_CIRMS);
-static IIO_DEV_ATTR_AVRMS(S_IRUGO,
-		ade7758_read_24bit,
-		NULL,
-		ADE7758_AVRMS);
-static IIO_DEV_ATTR_BVRMS(S_IRUGO,
-		ade7758_read_24bit,
-		NULL,
-		ADE7758_BVRMS);
-static IIO_DEV_ATTR_CVRMS(S_IRUGO,
-		ade7758_read_24bit,
-		NULL,
-		ADE7758_CVRMS);
-static IIO_DEV_ATTR_AIRMSOS(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_AIRMSOS);
-static IIO_DEV_ATTR_BIRMSOS(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_BIRMSOS);
-static IIO_DEV_ATTR_CIRMSOS(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_CIRMSOS);
-static IIO_DEV_ATTR_AVRMSOS(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_AVRMSOS);
-static IIO_DEV_ATTR_BVRMSOS(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_BVRMSOS);
-static IIO_DEV_ATTR_CVRMSOS(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_CVRMSOS);
-static IIO_DEV_ATTR_AIGAIN(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_AIGAIN);
-static IIO_DEV_ATTR_BIGAIN(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_BIGAIN);
-static IIO_DEV_ATTR_CIGAIN(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_CIGAIN);
-static IIO_DEV_ATTR_AVRMSGAIN(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_AVRMSGAIN);
-static IIO_DEV_ATTR_BVRMSGAIN(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_BVRMSGAIN);
-static IIO_DEV_ATTR_CVRMSGAIN(S_IWUSR | S_IRUGO,
-		ade7758_read_16bit,
-		ade7758_write_16bit,
-		ADE7758_CVRMSGAIN);
-
-int ade7758_set_irq(struct device *dev, bool enable)
-{
-	int ret;
-	u32 irqen;
-
-	ret = ade7758_spi_read_reg_24(dev, ADE7758_MASK, &irqen);
-	if (ret)
-		goto error_ret;
-
-	if (enable)
-		irqen |= 1 << 16; /* Enables an interrupt when a data is
-				     present in the waveform register */
-	else
-		irqen &= ~(1 << 16);
-
-	ret = ade7758_spi_write_reg_24(dev, ADE7758_MASK, irqen);
-	if (ret)
-		goto error_ret;
-
-error_ret:
-	return ret;
-}
-
-/* Power down the device */
-static int ade7758_stop_device(struct device *dev)
-{
-	int ret;
-	u8 val;
-
-	ret = ade7758_spi_read_reg_8(dev, ADE7758_OPMODE, &val);
-	if (ret < 0) {
-		dev_err(dev, "Failed to read opmode reg\n");
-		return ret;
-	}
-	val |= 7 << 3;  /* ADE7758 powered down */
-	ret = ade7758_spi_write_reg_8(dev, ADE7758_OPMODE, val);
-	if (ret < 0)
-		dev_err(dev, "Failed to write opmode reg\n");
-	return ret;
-}
-
-static int ade7758_initial_setup(struct iio_dev *indio_dev)
-{
-	struct ade7758_state *st = iio_priv(indio_dev);
-	struct device *dev = &indio_dev->dev;
-	int ret;
-
-	/* use low spi speed for init */
-	st->us->mode = SPI_MODE_1;
-	spi_setup(st->us);
-
-	/* Disable IRQ */
-	ret = ade7758_set_irq(dev, false);
-	if (ret) {
-		dev_err(dev, "disable irq failed");
-		goto err_ret;
-	}
-
-	ade7758_reset(dev);
-	msleep(ADE7758_STARTUP_DELAY);
-
-err_ret:
-	return ret;
-}
-
-static ssize_t ade7758_read_frequency(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u8 t;
-	int sps;
-
-	ret = ade7758_spi_read_reg_8(dev,
-			ADE7758_WAVMODE,
-			&t);
-	if (ret)
-		return ret;
-
-	t = (t >> 5) & 0x3;
-	sps = 26040 / (1 << t);
-
-	return sprintf(buf, "%d SPS\n", sps);
-}
-
-static ssize_t ade7758_write_frequency(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	u16 val;
-	int ret;
-	u8 reg, t;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	mutex_lock(&indio_dev->mlock);
-
-	switch (val) {
-	case 26040:
-		t = 0;
-		break;
-	case 13020:
-		t = 1;
-		break;
-	case 6510:
-		t = 2;
-		break;
-	case 3255:
-		t = 3;
-		break;
-	default:
-		ret = -EINVAL;
-		goto out;
-	}
-
-	ret = ade7758_spi_read_reg_8(dev,
-			ADE7758_WAVMODE,
-			&reg);
-	if (ret)
-		goto out;
-
-	reg &= ~(5 << 3);
-	reg |= t << 5;
-
-	ret = ade7758_spi_write_reg_8(dev,
-			ADE7758_WAVMODE,
-			reg);
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static IIO_DEV_ATTR_TEMP_RAW(ade7758_read_8bit);
-static IIO_CONST_ATTR(in_temp_offset, "129 C");
-static IIO_CONST_ATTR(in_temp_scale, "4 C");
-
-static IIO_DEV_ATTR_AWATTHR(ade7758_read_16bit,
-		ADE7758_AWATTHR);
-static IIO_DEV_ATTR_BWATTHR(ade7758_read_16bit,
-		ADE7758_BWATTHR);
-static IIO_DEV_ATTR_CWATTHR(ade7758_read_16bit,
-		ADE7758_CWATTHR);
-static IIO_DEV_ATTR_AVARHR(ade7758_read_16bit,
-		ADE7758_AVARHR);
-static IIO_DEV_ATTR_BVARHR(ade7758_read_16bit,
-		ADE7758_BVARHR);
-static IIO_DEV_ATTR_CVARHR(ade7758_read_16bit,
-		ADE7758_CVARHR);
-static IIO_DEV_ATTR_AVAHR(ade7758_read_16bit,
-		ADE7758_AVAHR);
-static IIO_DEV_ATTR_BVAHR(ade7758_read_16bit,
-		ADE7758_BVAHR);
-static IIO_DEV_ATTR_CVAHR(ade7758_read_16bit,
-		ADE7758_CVAHR);
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-		ade7758_read_frequency,
-		ade7758_write_frequency);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("26040 13020 6510 3255");
-
-static struct attribute *ade7758_attributes[] = {
-	&iio_dev_attr_in_temp_raw.dev_attr.attr,
-	&iio_const_attr_in_temp_offset.dev_attr.attr,
-	&iio_const_attr_in_temp_scale.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	&iio_dev_attr_awatthr.dev_attr.attr,
-	&iio_dev_attr_bwatthr.dev_attr.attr,
-	&iio_dev_attr_cwatthr.dev_attr.attr,
-	&iio_dev_attr_avarhr.dev_attr.attr,
-	&iio_dev_attr_bvarhr.dev_attr.attr,
-	&iio_dev_attr_cvarhr.dev_attr.attr,
-	&iio_dev_attr_avahr.dev_attr.attr,
-	&iio_dev_attr_bvahr.dev_attr.attr,
-	&iio_dev_attr_cvahr.dev_attr.attr,
-	&iio_dev_attr_vpeak.dev_attr.attr,
-	&iio_dev_attr_ipeak.dev_attr.attr,
-	&iio_dev_attr_aphcal.dev_attr.attr,
-	&iio_dev_attr_bphcal.dev_attr.attr,
-	&iio_dev_attr_cphcal.dev_attr.attr,
-	&iio_dev_attr_wdiv.dev_attr.attr,
-	&iio_dev_attr_vadiv.dev_attr.attr,
-	&iio_dev_attr_airms.dev_attr.attr,
-	&iio_dev_attr_birms.dev_attr.attr,
-	&iio_dev_attr_cirms.dev_attr.attr,
-	&iio_dev_attr_avrms.dev_attr.attr,
-	&iio_dev_attr_bvrms.dev_attr.attr,
-	&iio_dev_attr_cvrms.dev_attr.attr,
-	&iio_dev_attr_aigain.dev_attr.attr,
-	&iio_dev_attr_bigain.dev_attr.attr,
-	&iio_dev_attr_cigain.dev_attr.attr,
-	&iio_dev_attr_avrmsgain.dev_attr.attr,
-	&iio_dev_attr_bvrmsgain.dev_attr.attr,
-	&iio_dev_attr_cvrmsgain.dev_attr.attr,
-	&iio_dev_attr_airmsos.dev_attr.attr,
-	&iio_dev_attr_birmsos.dev_attr.attr,
-	&iio_dev_attr_cirmsos.dev_attr.attr,
-	&iio_dev_attr_avrmsos.dev_attr.attr,
-	&iio_dev_attr_bvrmsos.dev_attr.attr,
-	&iio_dev_attr_cvrmsos.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ade7758_attribute_group = {
-	.attrs = ade7758_attributes,
-};
-
-static const struct iio_chan_spec ade7758_channels[] = {
-	{
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 0,
-		.address = AD7758_WT(AD7758_PHASE_A, AD7758_VOLTAGE),
-		.scan_index = 0,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_CURRENT,
-		.indexed = 1,
-		.channel = 0,
-		.address = AD7758_WT(AD7758_PHASE_A, AD7758_CURRENT),
-		.scan_index = 1,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 0,
-		.extend_name = "apparent",
-		.address = AD7758_WT(AD7758_PHASE_A, AD7758_APP_PWR),
-		.scan_index = 2,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 0,
-		.extend_name = "active",
-		.address = AD7758_WT(AD7758_PHASE_A, AD7758_ACT_PWR),
-		.scan_index = 3,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 0,
-		.extend_name = "reactive",
-		.address = AD7758_WT(AD7758_PHASE_A, AD7758_REACT_PWR),
-		.scan_index = 4,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 1,
-		.address = AD7758_WT(AD7758_PHASE_B, AD7758_VOLTAGE),
-		.scan_index = 5,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_CURRENT,
-		.indexed = 1,
-		.channel = 1,
-		.address = AD7758_WT(AD7758_PHASE_B, AD7758_CURRENT),
-		.scan_index = 6,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 1,
-		.extend_name = "apparent",
-		.address = AD7758_WT(AD7758_PHASE_B, AD7758_APP_PWR),
-		.scan_index = 7,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 1,
-		.extend_name = "active",
-		.address = AD7758_WT(AD7758_PHASE_B, AD7758_ACT_PWR),
-		.scan_index = 8,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 1,
-		.extend_name = "reactive",
-		.address = AD7758_WT(AD7758_PHASE_B, AD7758_REACT_PWR),
-		.scan_index = 9,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_VOLTAGE,
-		.indexed = 1,
-		.channel = 2,
-		.address = AD7758_WT(AD7758_PHASE_C, AD7758_VOLTAGE),
-		.scan_index = 10,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_CURRENT,
-		.indexed = 1,
-		.channel = 2,
-		.address = AD7758_WT(AD7758_PHASE_C, AD7758_CURRENT),
-		.scan_index = 11,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 2,
-		.extend_name = "apparent",
-		.address = AD7758_WT(AD7758_PHASE_C, AD7758_APP_PWR),
-		.scan_index = 12,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 2,
-		.extend_name = "active",
-		.address = AD7758_WT(AD7758_PHASE_C, AD7758_ACT_PWR),
-		.scan_index = 13,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	}, {
-		.type = IIO_POWER,
-		.indexed = 1,
-		.channel = 2,
-		.extend_name = "reactive",
-		.address = AD7758_WT(AD7758_PHASE_C, AD7758_REACT_PWR),
-		.scan_index = 14,
-		.scan_type = {
-			.sign = 's',
-			.realbits = 24,
-			.storagebits = 32,
-		},
-	},
-	IIO_CHAN_SOFT_TIMESTAMP(15),
-};
-
-static const struct iio_info ade7758_info = {
-	.attrs = &ade7758_attribute_group,
-	.driver_module = THIS_MODULE,
-};
-
-static int ade7758_probe(struct spi_device *spi)
-{
-	int ret;
-	struct ade7758_state *st;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-
-	st = iio_priv(indio_dev);
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	/* Allocate the comms buffers */
-	st->rx = kcalloc(ADE7758_MAX_RX, sizeof(*st->rx), GFP_KERNEL);
-	if (!st->rx)
-		return -ENOMEM;
-	st->tx = kcalloc(ADE7758_MAX_TX, sizeof(*st->tx), GFP_KERNEL);
-	if (!st->tx) {
-		ret = -ENOMEM;
-		goto error_free_rx;
-	}
-	st->us = spi;
-	mutex_init(&st->buf_lock);
-
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &ade7758_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = ade7758_channels;
-	indio_dev->num_channels = ARRAY_SIZE(ade7758_channels);
-
-	ret = ade7758_configure_ring(indio_dev);
-	if (ret)
-		goto error_free_tx;
-
-	/* Get the device into a sane initial state */
-	ret = ade7758_initial_setup(indio_dev);
-	if (ret)
-		goto error_unreg_ring_funcs;
-
-	if (spi->irq) {
-		ret = ade7758_probe_trigger(indio_dev);
-		if (ret)
-			goto error_unreg_ring_funcs;
-	}
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_remove_trigger;
-
-	return 0;
-
-error_remove_trigger:
-	if (spi->irq)
-		ade7758_remove_trigger(indio_dev);
-error_unreg_ring_funcs:
-	ade7758_unconfigure_ring(indio_dev);
-error_free_tx:
-	kfree(st->tx);
-error_free_rx:
-	kfree(st->rx);
-	return ret;
-}
-
-static int ade7758_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-	struct ade7758_state *st = iio_priv(indio_dev);
-
-	iio_device_unregister(indio_dev);
-	ade7758_stop_device(&indio_dev->dev);
-	ade7758_remove_trigger(indio_dev);
-	ade7758_unconfigure_ring(indio_dev);
-	kfree(st->tx);
-	kfree(st->rx);
-
-	return 0;
-}
-
-static const struct spi_device_id ade7758_id[] = {
-	{"ade7758", 0},
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ade7758_id);
-
-static struct spi_driver ade7758_driver = {
-	.driver = {
-		.name = "ade7758",
-		.owner = THIS_MODULE,
-	},
-	.probe = ade7758_probe,
-	.remove = ade7758_remove,
-	.id_table = ade7758_id,
-};
-module_spi_driver(ade7758_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADE7758 Polyphase Multifunction Energy Metering IC Driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
deleted file mode 100644
index 9a24e0226f8b..000000000000
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * ADE7758 Poly Phase Multifunction Energy Metering IC driver
- *
- * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-#include <linux/export.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <asm/unaligned.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/kfifo_buf.h>
-#include <linux/iio/trigger_consumer.h>
-#include "ade7758.h"
-
-/**
- * ade7758_spi_read_burst() - read data registers
- * @indio_dev: the IIO device
- **/
-static int ade7758_spi_read_burst(struct iio_dev *indio_dev)
-{
-	struct ade7758_state *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = spi_sync(st->us, &st->ring_msg);
-	if (ret)
-		dev_err(&st->us->dev, "problem when reading WFORM value\n");
-
-	return ret;
-}
-
-static int ade7758_write_waveform_type(struct device *dev, unsigned type)
-{
-	int ret;
-	u8 reg;
-
-	ret = ade7758_spi_read_reg_8(dev,
-			ADE7758_WAVMODE,
-			&reg);
-	if (ret)
-		goto out;
-
-	reg &= ~0x1F;
-	reg |= type & 0x1F;
-
-	ret = ade7758_spi_write_reg_8(dev,
-			ADE7758_WAVMODE,
-			reg);
-out:
-	return ret;
-}
-
-/* Whilst this makes a lot of calls to iio_sw_ring functions - it is too device
- * specific to be rolled into the core.
- */
-static irqreturn_t ade7758_trigger_handler(int irq, void *p)
-{
-	struct iio_poll_func *pf = p;
-	struct iio_dev *indio_dev = pf->indio_dev;
-	struct ade7758_state *st = iio_priv(indio_dev);
-	s64 dat64[2];
-	u32 *dat32 = (u32 *)dat64;
-
-	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
-		if (ade7758_spi_read_burst(indio_dev) >= 0)
-			*dat32 = get_unaligned_be32(&st->rx_buf[5]) & 0xFFFFFF;
-
-	iio_push_to_buffers_with_timestamp(indio_dev, dat64, pf->timestamp);
-
-	iio_trigger_notify_done(indio_dev->trig);
-
-	return IRQ_HANDLED;
-}
-
-/**
- * ade7758_ring_preenable() setup the parameters of the ring before enabling
- *
- * The complex nature of the setting of the number of bytes per datum is due
- * to this driver currently ensuring that the timestamp is stored at an 8
- * byte boundary.
- **/
-static int ade7758_ring_preenable(struct iio_dev *indio_dev)
-{
-	unsigned channel;
-
-	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
-		return -EINVAL;
-
-	channel = find_first_bit(indio_dev->active_scan_mask,
-				 indio_dev->masklength);
-
-	ade7758_write_waveform_type(&indio_dev->dev,
-		indio_dev->channels[channel].address);
-
-	return 0;
-}
-
-static const struct iio_buffer_setup_ops ade7758_ring_setup_ops = {
-	.preenable = &ade7758_ring_preenable,
-	.postenable = &iio_triggered_buffer_postenable,
-	.predisable = &iio_triggered_buffer_predisable,
-	.validate_scan_mask = &iio_validate_scan_mask_onehot,
-};
-
-void ade7758_unconfigure_ring(struct iio_dev *indio_dev)
-{
-	iio_dealloc_pollfunc(indio_dev->pollfunc);
-	iio_kfifo_free(indio_dev->buffer);
-}
-
-int ade7758_configure_ring(struct iio_dev *indio_dev)
-{
-	struct ade7758_state *st = iio_priv(indio_dev);
-	struct iio_buffer *buffer;
-	int ret = 0;
-
-	buffer = iio_kfifo_allocate();
-	if (!buffer)
-		return -ENOMEM;
-
-	iio_device_attach_buffer(indio_dev, buffer);
-
-	indio_dev->setup_ops = &ade7758_ring_setup_ops;
-
-	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
-						 &ade7758_trigger_handler,
-						 0,
-						 indio_dev,
-						 "ade7759_consumer%d",
-						 indio_dev->id);
-	if (!indio_dev->pollfunc) {
-		ret = -ENOMEM;
-		goto error_iio_kfifo_free;
-	}
-
-	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
-
-	st->tx_buf[0] = ADE7758_READ_REG(ADE7758_RSTATUS);
-	st->tx_buf[1] = 0;
-	st->tx_buf[2] = 0;
-	st->tx_buf[3] = 0;
-	st->tx_buf[4] = ADE7758_READ_REG(ADE7758_WFORM);
-	st->tx_buf[5] = 0;
-	st->tx_buf[6] = 0;
-	st->tx_buf[7] = 0;
-
-	/* build spi ring message */
-	st->ring_xfer[0].tx_buf = &st->tx_buf[0];
-	st->ring_xfer[0].len = 1;
-	st->ring_xfer[0].bits_per_word = 8;
-	st->ring_xfer[0].delay_usecs = 4;
-	st->ring_xfer[1].rx_buf = &st->rx_buf[1];
-	st->ring_xfer[1].len = 3;
-	st->ring_xfer[1].bits_per_word = 8;
-	st->ring_xfer[1].cs_change = 1;
-
-	st->ring_xfer[2].tx_buf = &st->tx_buf[4];
-	st->ring_xfer[2].len = 1;
-	st->ring_xfer[2].bits_per_word = 8;
-	st->ring_xfer[2].delay_usecs = 1;
-	st->ring_xfer[3].rx_buf = &st->rx_buf[5];
-	st->ring_xfer[3].len = 3;
-	st->ring_xfer[3].bits_per_word = 8;
-
-	spi_message_init(&st->ring_msg);
-	spi_message_add_tail(&st->ring_xfer[0], &st->ring_msg);
-	spi_message_add_tail(&st->ring_xfer[1], &st->ring_msg);
-	spi_message_add_tail(&st->ring_xfer[2], &st->ring_msg);
-	spi_message_add_tail(&st->ring_xfer[3], &st->ring_msg);
-
-	return 0;
-
-error_iio_kfifo_free:
-	iio_kfifo_free(indio_dev->buffer);
-	return ret;
-}
diff --git a/drivers/staging/iio/meter/ade7758_trigger.c b/drivers/staging/iio/meter/ade7758_trigger.c
deleted file mode 100644
index 5b35a7f08f4f..000000000000
--- a/drivers/staging/iio/meter/ade7758_trigger.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * ADE7758 Poly Phase Multifunction Energy Metering IC driver
- *
- * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- */
-
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/export.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/trigger.h>
-#include "ade7758.h"
-
-/**
- * ade7758_data_rdy_trig_poll() the event handler for the data rdy trig
- **/
-static irqreturn_t ade7758_data_rdy_trig_poll(int irq, void *private)
-{
-	disable_irq_nosync(irq);
-	iio_trigger_poll(private);
-
-	return IRQ_HANDLED;
-}
-
-/**
- * ade7758_data_rdy_trigger_set_state() set datardy interrupt state
- **/
-static int ade7758_data_rdy_trigger_set_state(struct iio_trigger *trig,
-						bool state)
-{
-	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
-
-	dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state);
-	return ade7758_set_irq(&indio_dev->dev, state);
-}
-
-/**
- * ade7758_trig_try_reen() try renabling irq for data rdy trigger
- * @trig:	the datardy trigger
- **/
-static int ade7758_trig_try_reen(struct iio_trigger *trig)
-{
-	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
-	struct ade7758_state *st = iio_priv(indio_dev);
-
-	enable_irq(st->us->irq);
-	/* irq reenabled so success! */
-	return 0;
-}
-
-static const struct iio_trigger_ops ade7758_trigger_ops = {
-	.owner = THIS_MODULE,
-	.set_trigger_state = &ade7758_data_rdy_trigger_set_state,
-	.try_reenable = &ade7758_trig_try_reen,
-};
-
-int ade7758_probe_trigger(struct iio_dev *indio_dev)
-{
-	struct ade7758_state *st = iio_priv(indio_dev);
-	int ret;
-
-	st->trig = iio_trigger_alloc("%s-dev%d",
-					spi_get_device_id(st->us)->name,
-					indio_dev->id);
-	if (!st->trig) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-
-	ret = request_irq(st->us->irq,
-			  ade7758_data_rdy_trig_poll,
-			  IRQF_TRIGGER_LOW,
-			  spi_get_device_id(st->us)->name,
-			  st->trig);
-	if (ret)
-		goto error_free_trig;
-
-	st->trig->dev.parent = &st->us->dev;
-	st->trig->ops = &ade7758_trigger_ops;
-	iio_trigger_set_drvdata(st->trig, indio_dev);
-	ret = iio_trigger_register(st->trig);
-
-	/* select default trigger */
-	indio_dev->trig = iio_trigger_get(st->trig);
-	if (ret)
-		goto error_free_irq;
-
-	return 0;
-
-error_free_irq:
-	free_irq(st->us->irq, st->trig);
-error_free_trig:
-	iio_trigger_free(st->trig);
-error_ret:
-	return ret;
-}
-
-void ade7758_remove_trigger(struct iio_dev *indio_dev)
-{
-	struct ade7758_state *st = iio_priv(indio_dev);
-
-	iio_trigger_unregister(st->trig);
-	free_irq(st->us->irq, st->trig);
-	iio_trigger_free(st->trig);
-}
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
deleted file mode 100644
index dbceda1e67ea..000000000000
--- a/drivers/staging/iio/meter/ade7759.c
+++ /dev/null
@@ -1,503 +0,0 @@
-/*
- * ADE7759 Active Energy Metering IC with di/dt Sensor Interface Driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include "meter.h"
-#include "ade7759.h"
-
-static int ade7759_spi_write_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 val)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7759_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7759_WRITE_REG(reg_address);
-	st->tx[1] = val;
-
-	ret = spi_write(st->us, st->tx, 2);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7759_spi_write_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7759_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7759_WRITE_REG(reg_address);
-	st->tx[1] = (value >> 8) & 0xFF;
-	st->tx[2] = value & 0xFF;
-	ret = spi_write(st->us, st->tx, 3);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7759_spi_read_reg_8(struct device *dev,
-		u8 reg_address,
-		u8 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7759_state *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = spi_w8r8(st->us, ADE7759_READ_REG(reg_address));
-	if (ret < 0) {
-		dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X",
-				reg_address);
-		return ret;
-	}
-	*val = ret;
-
-	return 0;
-}
-
-static int ade7759_spi_read_reg_16(struct device *dev,
-		u8 reg_address,
-		u16 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7759_state *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = spi_w8r16be(st->us, ADE7759_READ_REG(reg_address));
-	if (ret < 0) {
-		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
-			reg_address);
-		return ret;
-	}
-
-	*val = ret;
-
-	return 0;
-}
-
-static int ade7759_spi_read_reg_40(struct device *dev,
-		u8 reg_address,
-		u64 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7759_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 6,
-		},
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7759_READ_REG(reg_address);
-	memset(&st->tx[1], 0, 5);
-
-	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->us->dev, "problem when reading 40 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = ((u64)st->rx[1] << 32) | (st->rx[2] << 24) |
-		(st->rx[3] << 16) | (st->rx[4] << 8) | st->rx[5];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static ssize_t ade7759_read_8bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u8 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7759_spi_read_reg_8(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7759_read_16bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7759_spi_read_reg_16(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7759_read_40bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u64 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = ade7759_spi_read_reg_40(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%llu\n", val);
-}
-
-static ssize_t ade7759_write_8bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u8 val;
-
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7759_spi_write_reg_8(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t ade7759_write_16bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int ret;
-	u16 val;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = ade7759_spi_write_reg_16(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static int ade7759_reset(struct device *dev)
-{
-	int ret;
-	u16 val;
-
-	ret = ade7759_spi_read_reg_16(dev,
-			ADE7759_MODE,
-			&val);
-	if (ret < 0)
-		return ret;
-
-	val |= 1 << 6; /* Software Chip Reset */
-	return ade7759_spi_write_reg_16(dev,
-			ADE7759_MODE,
-			val);
-}
-
-static IIO_DEV_ATTR_AENERGY(ade7759_read_40bit, ADE7759_AENERGY);
-static IIO_DEV_ATTR_CFDEN(S_IWUSR | S_IRUGO,
-		ade7759_read_16bit,
-		ade7759_write_16bit,
-		ADE7759_CFDEN);
-static IIO_DEV_ATTR_CFNUM(S_IWUSR | S_IRUGO,
-		ade7759_read_8bit,
-		ade7759_write_8bit,
-		ADE7759_CFNUM);
-static IIO_DEV_ATTR_CHKSUM(ade7759_read_8bit, ADE7759_CHKSUM);
-static IIO_DEV_ATTR_PHCAL(S_IWUSR | S_IRUGO,
-		ade7759_read_16bit,
-		ade7759_write_16bit,
-		ADE7759_PHCAL);
-static IIO_DEV_ATTR_APOS(S_IWUSR | S_IRUGO,
-		ade7759_read_16bit,
-		ade7759_write_16bit,
-		ADE7759_APOS);
-static IIO_DEV_ATTR_SAGCYC(S_IWUSR | S_IRUGO,
-		ade7759_read_8bit,
-		ade7759_write_8bit,
-		ADE7759_SAGCYC);
-static IIO_DEV_ATTR_SAGLVL(S_IWUSR | S_IRUGO,
-		ade7759_read_8bit,
-		ade7759_write_8bit,
-		ADE7759_SAGLVL);
-static IIO_DEV_ATTR_LINECYC(S_IWUSR | S_IRUGO,
-		ade7759_read_8bit,
-		ade7759_write_8bit,
-		ADE7759_LINECYC);
-static IIO_DEV_ATTR_LENERGY(ade7759_read_40bit, ADE7759_LENERGY);
-static IIO_DEV_ATTR_PGA_GAIN(S_IWUSR | S_IRUGO,
-		ade7759_read_8bit,
-		ade7759_write_8bit,
-		ADE7759_GAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_GAIN(S_IWUSR | S_IRUGO,
-		ade7759_read_16bit,
-		ade7759_write_16bit,
-		ADE7759_APGAIN);
-static IIO_DEV_ATTR_CH_OFF(1, S_IWUSR | S_IRUGO,
-		ade7759_read_8bit,
-		ade7759_write_8bit,
-		ADE7759_CH1OS);
-static IIO_DEV_ATTR_CH_OFF(2, S_IWUSR | S_IRUGO,
-		ade7759_read_8bit,
-		ade7759_write_8bit,
-		ADE7759_CH2OS);
-
-static int ade7759_set_irq(struct device *dev, bool enable)
-{
-	int ret;
-	u8 irqen;
-
-	ret = ade7759_spi_read_reg_8(dev, ADE7759_IRQEN, &irqen);
-	if (ret)
-		goto error_ret;
-
-	if (enable)
-		irqen |= 1 << 3; /* Enables an interrupt when a data is
-				    present in the waveform register */
-	else
-		irqen &= ~(1 << 3);
-
-	ret = ade7759_spi_write_reg_8(dev, ADE7759_IRQEN, irqen);
-
-error_ret:
-	return ret;
-}
-
-/* Power down the device */
-static int ade7759_stop_device(struct device *dev)
-{
-	int ret;
-	u16 val;
-
-	ret = ade7759_spi_read_reg_16(dev,
-			ADE7759_MODE,
-			&val);
-	if (ret < 0) {
-		dev_err(dev, "unable to power down the device, error: %d\n",
-			ret);
-		return ret;
-	}
-
-	val |= 1 << 4;  /* AD converters can be turned off */
-
-	return ade7759_spi_write_reg_16(dev, ADE7759_MODE, val);
-}
-
-static int ade7759_initial_setup(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct ade7759_state *st = iio_priv(indio_dev);
-	struct device *dev = &indio_dev->dev;
-
-	/* use low spi speed for init */
-	st->us->mode = SPI_MODE_3;
-	spi_setup(st->us);
-
-	/* Disable IRQ */
-	ret = ade7759_set_irq(dev, false);
-	if (ret) {
-		dev_err(dev, "disable irq failed");
-		goto err_ret;
-	}
-
-	ade7759_reset(dev);
-	msleep(ADE7759_STARTUP_DELAY);
-
-err_ret:
-	return ret;
-}
-
-static ssize_t ade7759_read_frequency(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 t;
-	int sps;
-
-	ret = ade7759_spi_read_reg_16(dev,
-			ADE7759_MODE,
-			&t);
-	if (ret)
-		return ret;
-
-	t = (t >> 3) & 0x3;
-	sps = 27900 / (1 + t);
-
-	return sprintf(buf, "%d\n", sps);
-}
-
-static ssize_t ade7759_write_frequency(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7759_state *st = iio_priv(indio_dev);
-	u16 val;
-	int ret;
-	u16 reg, t;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		return ret;
-	if (val == 0)
-		return -EINVAL;
-
-	mutex_lock(&indio_dev->mlock);
-
-	t = 27900 / val;
-	if (t > 0)
-		t--;
-
-	if (t > 1)
-		st->us->max_speed_hz = ADE7759_SPI_SLOW;
-	else
-		st->us->max_speed_hz = ADE7759_SPI_FAST;
-
-	ret = ade7759_spi_read_reg_16(dev, ADE7759_MODE, &reg);
-	if (ret)
-		goto out;
-
-	reg &= ~(3 << 13);
-	reg |= t << 13;
-
-	ret = ade7759_spi_write_reg_16(dev, ADE7759_MODE, reg);
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-static IIO_DEV_ATTR_TEMP_RAW(ade7759_read_8bit);
-static IIO_CONST_ATTR(in_temp_offset, "70 C");
-static IIO_CONST_ATTR(in_temp_scale, "1 C");
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-		ade7759_read_frequency,
-		ade7759_write_frequency);
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("27900 14000 7000 3500");
-
-static struct attribute *ade7759_attributes[] = {
-	&iio_dev_attr_in_temp_raw.dev_attr.attr,
-	&iio_const_attr_in_temp_offset.dev_attr.attr,
-	&iio_const_attr_in_temp_scale.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	&iio_dev_attr_phcal.dev_attr.attr,
-	&iio_dev_attr_cfden.dev_attr.attr,
-	&iio_dev_attr_aenergy.dev_attr.attr,
-	&iio_dev_attr_cfnum.dev_attr.attr,
-	&iio_dev_attr_apos.dev_attr.attr,
-	&iio_dev_attr_sagcyc.dev_attr.attr,
-	&iio_dev_attr_saglvl.dev_attr.attr,
-	&iio_dev_attr_linecyc.dev_attr.attr,
-	&iio_dev_attr_lenergy.dev_attr.attr,
-	&iio_dev_attr_chksum.dev_attr.attr,
-	&iio_dev_attr_pga_gain.dev_attr.attr,
-	&iio_dev_attr_active_power_gain.dev_attr.attr,
-	&iio_dev_attr_choff_1.dev_attr.attr,
-	&iio_dev_attr_choff_2.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ade7759_attribute_group = {
-	.attrs = ade7759_attributes,
-};
-
-static const struct iio_info ade7759_info = {
-	.attrs = &ade7759_attribute_group,
-	.driver_module = THIS_MODULE,
-};
-
-static int ade7759_probe(struct spi_device *spi)
-{
-	int ret;
-	struct ade7759_state *st;
-	struct iio_dev *indio_dev;
-
-	/* setup the industrialio driver allocated elements */
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	/* this is only used for removal purposes */
-	spi_set_drvdata(spi, indio_dev);
-
-	st = iio_priv(indio_dev);
-	st->us = spi;
-	mutex_init(&st->buf_lock);
-	indio_dev->name = spi->dev.driver->name;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &ade7759_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	/* Get the device into a sane initial state */
-	ret = ade7759_initial_setup(indio_dev);
-	if (ret)
-		return ret;
-
-	return iio_device_register(indio_dev);
-}
-
-/* fixme, confirm ordering in this function */
-static int ade7759_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-
-	iio_device_unregister(indio_dev);
-	ade7759_stop_device(&indio_dev->dev);
-
-	return 0;
-}
-
-static struct spi_driver ade7759_driver = {
-	.driver = {
-		.name = "ade7759",
-		.owner = THIS_MODULE,
-	},
-	.probe = ade7759_probe,
-	.remove = ade7759_remove,
-};
-module_spi_driver(ade7759_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADE7759 Active Energy Metering IC Driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad7759");
diff --git a/drivers/staging/iio/meter/ade7759.h b/drivers/staging/iio/meter/ade7759.h
deleted file mode 100644
index f9ff1f8e7372..000000000000
--- a/drivers/staging/iio/meter/ade7759.h
+++ /dev/null
@@ -1,53 +0,0 @@
-#ifndef _ADE7759_H
-#define _ADE7759_H
-
-#define ADE7759_WAVEFORM  0x01
-#define ADE7759_AENERGY   0x02
-#define ADE7759_RSTENERGY 0x03
-#define ADE7759_STATUS    0x04
-#define ADE7759_RSTSTATUS 0x05
-#define ADE7759_MODE      0x06
-#define ADE7759_CFDEN     0x07
-#define ADE7759_CH1OS     0x08
-#define ADE7759_CH2OS     0x09
-#define ADE7759_GAIN      0x0A
-#define ADE7759_APGAIN    0x0B
-#define ADE7759_PHCAL     0x0C
-#define ADE7759_APOS      0x0D
-#define ADE7759_ZXTOUT    0x0E
-#define ADE7759_SAGCYC    0x0F
-#define ADE7759_IRQEN     0x10
-#define ADE7759_SAGLVL    0x11
-#define ADE7759_TEMP      0x12
-#define ADE7759_LINECYC   0x13
-#define ADE7759_LENERGY   0x14
-#define ADE7759_CFNUM     0x15
-#define ADE7759_CHKSUM    0x1E
-#define ADE7759_DIEREV    0x1F
-
-#define ADE7759_READ_REG(a)    a
-#define ADE7759_WRITE_REG(a) ((a) | 0x80)
-
-#define ADE7759_MAX_TX    6
-#define ADE7759_MAX_RX    6
-#define ADE7759_STARTUP_DELAY 1
-
-#define ADE7759_SPI_SLOW	(u32)(300 * 1000)
-#define ADE7759_SPI_BURST	(u32)(1000 * 1000)
-#define ADE7759_SPI_FAST	(u32)(2000 * 1000)
-
-/**
- * struct ade7759_state - device instance specific data
- * @us:			actual spi_device
- * @buf_lock:		mutex to protect tx and rx
- * @tx:			transmit buffer
- * @rx:			receive buffer
- **/
-struct ade7759_state {
-	struct spi_device	*us;
-	struct mutex		buf_lock;
-	u8			tx[ADE7759_MAX_TX] ____cacheline_aligned;
-	u8			rx[ADE7759_MAX_RX];
-};
-
-#endif
diff --git a/drivers/staging/iio/meter/ade7854-i2c.c b/drivers/staging/iio/meter/ade7854-i2c.c
deleted file mode 100644
index 07cfe28b24e2..000000000000
--- a/drivers/staging/iio/meter/ade7854-i2c.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC Driver (I2C Bus)
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include "ade7854.h"
-
-static int ade7854_i2c_write_reg_8(struct device *dev,
-				   u16 reg_address,
-				   u8 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-	st->tx[2] = value;
-
-	ret = i2c_master_send(st->i2c, st->tx, 3);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_i2c_write_reg_16(struct device *dev,
-				    u16 reg_address,
-				    u16 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-	st->tx[2] = (value >> 8) & 0xFF;
-	st->tx[3] = value & 0xFF;
-
-	ret = i2c_master_send(st->i2c, st->tx, 4);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_i2c_write_reg_24(struct device *dev,
-				    u16 reg_address,
-				    u32 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-	st->tx[2] = (value >> 16) & 0xFF;
-	st->tx[3] = (value >> 8) & 0xFF;
-	st->tx[4] = value & 0xFF;
-
-	ret = i2c_master_send(st->i2c, st->tx, 5);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_i2c_write_reg_32(struct device *dev,
-				    u16 reg_address,
-				    u32 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-	st->tx[2] = (value >> 24) & 0xFF;
-	st->tx[3] = (value >> 16) & 0xFF;
-	st->tx[4] = (value >> 8) & 0xFF;
-	st->tx[5] = value & 0xFF;
-
-	ret = i2c_master_send(st->i2c, st->tx, 6);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_i2c_read_reg_8(struct device *dev,
-				  u16 reg_address,
-				  u8 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-
-	ret = i2c_master_send(st->i2c, st->tx, 2);
-	if (ret)
-		goto out;
-
-	ret = i2c_master_recv(st->i2c, st->rx, 1);
-	if (ret)
-		goto out;
-
-	*val = st->rx[0];
-out:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_i2c_read_reg_16(struct device *dev,
-				   u16 reg_address,
-				   u16 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-
-	ret = i2c_master_send(st->i2c, st->tx, 2);
-	if (ret)
-		goto out;
-
-	ret = i2c_master_recv(st->i2c, st->rx, 2);
-	if (ret)
-		goto out;
-
-	*val = (st->rx[0] << 8) | st->rx[1];
-out:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_i2c_read_reg_24(struct device *dev,
-				   u16 reg_address,
-				   u32 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-
-	ret = i2c_master_send(st->i2c, st->tx, 2);
-	if (ret)
-		goto out;
-
-	ret = i2c_master_recv(st->i2c, st->rx, 3);
-	if (ret)
-		goto out;
-
-	*val = (st->rx[0] << 16) | (st->rx[1] << 8) | st->rx[2];
-out:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_i2c_read_reg_32(struct device *dev,
-				   u16 reg_address,
-				   u32 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = (reg_address >> 8) & 0xFF;
-	st->tx[1] = reg_address & 0xFF;
-
-	ret = i2c_master_send(st->i2c, st->tx, 2);
-	if (ret)
-		goto out;
-
-	ret = i2c_master_recv(st->i2c, st->rx, 3);
-	if (ret)
-		goto out;
-
-	*val = (st->rx[0] << 24) | (st->rx[1] << 16) |
-		(st->rx[2] << 8) | st->rx[3];
-out:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_i2c_probe(struct i2c_client *client,
-			     const struct i2c_device_id *id)
-{
-	struct ade7854_state *st;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	i2c_set_clientdata(client, indio_dev);
-	st->read_reg_8 = ade7854_i2c_read_reg_8;
-	st->read_reg_16 = ade7854_i2c_read_reg_16;
-	st->read_reg_24 = ade7854_i2c_read_reg_24;
-	st->read_reg_32 = ade7854_i2c_read_reg_32;
-	st->write_reg_8 = ade7854_i2c_write_reg_8;
-	st->write_reg_16 = ade7854_i2c_write_reg_16;
-	st->write_reg_24 = ade7854_i2c_write_reg_24;
-	st->write_reg_32 = ade7854_i2c_write_reg_32;
-	st->i2c = client;
-	st->irq = client->irq;
-
-	return ade7854_probe(indio_dev, &client->dev);
-}
-
-static int ade7854_i2c_remove(struct i2c_client *client)
-{
-	return ade7854_remove(i2c_get_clientdata(client));
-}
-
-static const struct i2c_device_id ade7854_id[] = {
-	{ "ade7854", 0 },
-	{ "ade7858", 0 },
-	{ "ade7868", 0 },
-	{ "ade7878", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, ade7854_id);
-
-static struct i2c_driver ade7854_i2c_driver = {
-	.driver = {
-		.name = "ade7854",
-	},
-	.probe    = ade7854_i2c_probe,
-	.remove   = ade7854_i2c_remove,
-	.id_table = ade7854_id,
-};
-module_i2c_driver(ade7854_i2c_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC I2C Driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c
deleted file mode 100644
index 9b255a5f62c3..000000000000
--- a/drivers/staging/iio/meter/ade7854-spi.c
+++ /dev/null
@@ -1,327 +0,0 @@
-/*
- * ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC Driver (SPI Bus)
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include "ade7854.h"
-
-static int ade7854_spi_write_reg_8(struct device *dev,
-		u16 reg_address,
-		u8 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfer = {
-		.tx_buf = st->tx,
-		.bits_per_word = 8,
-		.len = 4,
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7854_WRITE_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-	st->tx[3] = value & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, &xfer, 1);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_spi_write_reg_16(struct device *dev,
-		u16 reg_address,
-		u16 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfer = {
-		.tx_buf = st->tx,
-		.bits_per_word = 8,
-		.len = 5,
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7854_WRITE_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-	st->tx[3] = (value >> 8) & 0xFF;
-	st->tx[4] = value & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, &xfer, 1);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_spi_write_reg_24(struct device *dev,
-		u16 reg_address,
-		u32 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfer = {
-		.tx_buf = st->tx,
-		.bits_per_word = 8,
-		.len = 6,
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7854_WRITE_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-	st->tx[3] = (value >> 16) & 0xFF;
-	st->tx[4] = (value >> 8) & 0xFF;
-	st->tx[5] = value & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, &xfer, 1);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_spi_write_reg_32(struct device *dev,
-		u16 reg_address,
-		u32 value)
-{
-	int ret;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	struct spi_transfer xfer = {
-		.tx_buf = st->tx,
-		.bits_per_word = 8,
-		.len = 7,
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7854_WRITE_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-	st->tx[3] = (value >> 24) & 0xFF;
-	st->tx[4] = (value >> 16) & 0xFF;
-	st->tx[5] = (value >> 8) & 0xFF;
-	st->tx[6] = value & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, &xfer, 1);
-	mutex_unlock(&st->buf_lock);
-
-	return ret;
-}
-
-static int ade7854_spi_read_reg_8(struct device *dev,
-		u16 reg_address,
-		u8 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 3,
-		}, {
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 1,
-		}
-	};
-
-	mutex_lock(&st->buf_lock);
-
-	st->tx[0] = ADE7854_READ_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->spi->dev, "problem when reading 8 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = st->rx[0];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_spi_read_reg_16(struct device *dev,
-		u16 reg_address,
-		u16 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 3,
-		}, {
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 2,
-		}
-	};
-
-	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7854_READ_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->spi->dev, "problem when reading 16 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = be16_to_cpup((const __be16 *)st->rx);
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_spi_read_reg_24(struct device *dev,
-		u16 reg_address,
-		u32 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 3,
-		}, {
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 3,
-		}
-	};
-
-	mutex_lock(&st->buf_lock);
-
-	st->tx[0] = ADE7854_READ_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->spi->dev, "problem when reading 24 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = (st->rx[0] << 16) | (st->rx[1] << 8) | st->rx[2];
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_spi_read_reg_32(struct device *dev,
-		u16 reg_address,
-		u32 *val)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	int ret;
-	struct spi_transfer xfers[] = {
-		{
-			.tx_buf = st->tx,
-			.bits_per_word = 8,
-			.len = 3,
-		}, {
-			.rx_buf = st->rx,
-			.bits_per_word = 8,
-			.len = 4,
-		}
-	};
-
-	mutex_lock(&st->buf_lock);
-
-	st->tx[0] = ADE7854_READ_REG;
-	st->tx[1] = (reg_address >> 8) & 0xFF;
-	st->tx[2] = reg_address & 0xFF;
-
-	ret = spi_sync_transfer(st->spi, xfers, ARRAY_SIZE(xfers));
-	if (ret) {
-		dev_err(&st->spi->dev, "problem when reading 32 bit register 0x%02X",
-				reg_address);
-		goto error_ret;
-	}
-	*val = be32_to_cpup((const __be32 *)st->rx);
-
-error_ret:
-	mutex_unlock(&st->buf_lock);
-	return ret;
-}
-
-static int ade7854_spi_probe(struct spi_device *spi)
-{
-	struct ade7854_state *st;
-	struct iio_dev *indio_dev;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (indio_dev == NULL)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	spi_set_drvdata(spi, indio_dev);
-	st->read_reg_8 = ade7854_spi_read_reg_8;
-	st->read_reg_16 = ade7854_spi_read_reg_16;
-	st->read_reg_24 = ade7854_spi_read_reg_24;
-	st->read_reg_32 = ade7854_spi_read_reg_32;
-	st->write_reg_8 = ade7854_spi_write_reg_8;
-	st->write_reg_16 = ade7854_spi_write_reg_16;
-	st->write_reg_24 = ade7854_spi_write_reg_24;
-	st->write_reg_32 = ade7854_spi_write_reg_32;
-	st->irq = spi->irq;
-	st->spi = spi;
-
-	return ade7854_probe(indio_dev, &spi->dev);
-}
-
-static int ade7854_spi_remove(struct spi_device *spi)
-{
-	ade7854_remove(spi_get_drvdata(spi));
-
-	return 0;
-}
-static const struct spi_device_id ade7854_id[] = {
-	{ "ade7854", 0 },
-	{ "ade7858", 0 },
-	{ "ade7868", 0 },
-	{ "ade7878", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(spi, ade7854_id);
-
-static struct spi_driver ade7854_driver = {
-	.driver = {
-		.name = "ade7854",
-		.owner = THIS_MODULE,
-	},
-	.probe = ade7854_spi_probe,
-	.remove = ade7854_spi_remove,
-	.id_table = ade7854_id,
-};
-module_spi_driver(ade7854_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 SPI Driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c
deleted file mode 100644
index d620bbd603a3..000000000000
--- a/drivers/staging/iio/meter/ade7854.c
+++ /dev/null
@@ -1,578 +0,0 @@
-/*
- * ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC Driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include "meter.h"
-#include "ade7854.h"
-
-static ssize_t ade7854_read_8bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u8 val = 0;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = st->read_reg_8(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7854_read_16bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u16 val = 0;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = st->read_reg_16(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7854_read_24bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u32 val;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	ret = st->read_reg_24(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7854_read_32bit(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	int ret;
-	u32 val = 0;
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	ret = st->read_reg_32(dev, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%u\n", val);
-}
-
-static ssize_t ade7854_write_8bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	int ret;
-	u8 val;
-
-	ret = kstrtou8(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = st->write_reg_8(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t ade7854_write_16bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	int ret;
-	u16 val;
-
-	ret = kstrtou16(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = st->write_reg_16(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t ade7854_write_24bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	int ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = st->write_reg_24(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static ssize_t ade7854_write_32bit(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	int ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-	ret = st->write_reg_32(dev, this_attr->address, val);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static int ade7854_reset(struct device *dev)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-	u16 val;
-
-	st->read_reg_16(dev, ADE7854_CONFIG, &val);
-	val |= 1 << 7; /* Software Chip Reset */
-
-	return st->write_reg_16(dev, ADE7854_CONFIG, val);
-}
-
-static IIO_DEV_ATTR_AIGAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_AIGAIN);
-static IIO_DEV_ATTR_BIGAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_BIGAIN);
-static IIO_DEV_ATTR_CIGAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_CIGAIN);
-static IIO_DEV_ATTR_NIGAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_NIGAIN);
-static IIO_DEV_ATTR_AVGAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_AVGAIN);
-static IIO_DEV_ATTR_BVGAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_BVGAIN);
-static IIO_DEV_ATTR_CVGAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_CVGAIN);
-static IIO_DEV_ATTR_APPARENT_POWER_A_GAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_AVAGAIN);
-static IIO_DEV_ATTR_APPARENT_POWER_B_GAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_BVAGAIN);
-static IIO_DEV_ATTR_APPARENT_POWER_C_GAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_CVAGAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_A_OFFSET(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_AWATTOS);
-static IIO_DEV_ATTR_ACTIVE_POWER_B_OFFSET(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_BWATTOS);
-static IIO_DEV_ATTR_ACTIVE_POWER_C_OFFSET(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_CWATTOS);
-static IIO_DEV_ATTR_REACTIVE_POWER_A_GAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_AVARGAIN);
-static IIO_DEV_ATTR_REACTIVE_POWER_B_GAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_BVARGAIN);
-static IIO_DEV_ATTR_REACTIVE_POWER_C_GAIN(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_CVARGAIN);
-static IIO_DEV_ATTR_REACTIVE_POWER_A_OFFSET(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_AVAROS);
-static IIO_DEV_ATTR_REACTIVE_POWER_B_OFFSET(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_BVAROS);
-static IIO_DEV_ATTR_REACTIVE_POWER_C_OFFSET(S_IWUSR | S_IRUGO,
-		ade7854_read_24bit,
-		ade7854_write_24bit,
-		ADE7854_CVAROS);
-static IIO_DEV_ATTR_VPEAK(S_IWUSR | S_IRUGO,
-		ade7854_read_32bit,
-		ade7854_write_32bit,
-		ADE7854_VPEAK);
-static IIO_DEV_ATTR_IPEAK(S_IWUSR | S_IRUGO,
-		ade7854_read_32bit,
-		ade7854_write_32bit,
-		ADE7854_VPEAK);
-static IIO_DEV_ATTR_APHCAL(S_IWUSR | S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_APHCAL);
-static IIO_DEV_ATTR_BPHCAL(S_IWUSR | S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_BPHCAL);
-static IIO_DEV_ATTR_CPHCAL(S_IWUSR | S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_CPHCAL);
-static IIO_DEV_ATTR_CF1DEN(S_IWUSR | S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_CF1DEN);
-static IIO_DEV_ATTR_CF2DEN(S_IWUSR | S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_CF2DEN);
-static IIO_DEV_ATTR_CF3DEN(S_IWUSR | S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_CF3DEN);
-static IIO_DEV_ATTR_LINECYC(S_IWUSR | S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_LINECYC);
-static IIO_DEV_ATTR_SAGCYC(S_IWUSR | S_IRUGO,
-		ade7854_read_8bit,
-		ade7854_write_8bit,
-		ADE7854_SAGCYC);
-static IIO_DEV_ATTR_CFCYC(S_IWUSR | S_IRUGO,
-		ade7854_read_8bit,
-		ade7854_write_8bit,
-		ADE7854_CFCYC);
-static IIO_DEV_ATTR_PEAKCYC(S_IWUSR | S_IRUGO,
-		ade7854_read_8bit,
-		ade7854_write_8bit,
-		ADE7854_PEAKCYC);
-static IIO_DEV_ATTR_CHKSUM(ade7854_read_24bit,
-		ADE7854_CHECKSUM);
-static IIO_DEV_ATTR_ANGLE0(ade7854_read_24bit,
-		ADE7854_ANGLE0);
-static IIO_DEV_ATTR_ANGLE1(ade7854_read_24bit,
-		ADE7854_ANGLE1);
-static IIO_DEV_ATTR_ANGLE2(ade7854_read_24bit,
-		ADE7854_ANGLE2);
-static IIO_DEV_ATTR_AIRMS(S_IRUGO,
-		ade7854_read_24bit,
-		NULL,
-		ADE7854_AIRMS);
-static IIO_DEV_ATTR_BIRMS(S_IRUGO,
-		ade7854_read_24bit,
-		NULL,
-		ADE7854_BIRMS);
-static IIO_DEV_ATTR_CIRMS(S_IRUGO,
-		ade7854_read_24bit,
-		NULL,
-		ADE7854_CIRMS);
-static IIO_DEV_ATTR_NIRMS(S_IRUGO,
-		ade7854_read_24bit,
-		NULL,
-		ADE7854_NIRMS);
-static IIO_DEV_ATTR_AVRMS(S_IRUGO,
-		ade7854_read_24bit,
-		NULL,
-		ADE7854_AVRMS);
-static IIO_DEV_ATTR_BVRMS(S_IRUGO,
-		ade7854_read_24bit,
-		NULL,
-		ADE7854_BVRMS);
-static IIO_DEV_ATTR_CVRMS(S_IRUGO,
-		ade7854_read_24bit,
-		NULL,
-		ADE7854_CVRMS);
-static IIO_DEV_ATTR_AIRMSOS(S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_AIRMSOS);
-static IIO_DEV_ATTR_BIRMSOS(S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_BIRMSOS);
-static IIO_DEV_ATTR_CIRMSOS(S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_CIRMSOS);
-static IIO_DEV_ATTR_AVRMSOS(S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_AVRMSOS);
-static IIO_DEV_ATTR_BVRMSOS(S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_BVRMSOS);
-static IIO_DEV_ATTR_CVRMSOS(S_IRUGO,
-		ade7854_read_16bit,
-		ade7854_write_16bit,
-		ADE7854_CVRMSOS);
-static IIO_DEV_ATTR_VOLT_A(ade7854_read_24bit,
-		ADE7854_VAWV);
-static IIO_DEV_ATTR_VOLT_B(ade7854_read_24bit,
-		ADE7854_VBWV);
-static IIO_DEV_ATTR_VOLT_C(ade7854_read_24bit,
-		ADE7854_VCWV);
-static IIO_DEV_ATTR_CURRENT_A(ade7854_read_24bit,
-		ADE7854_IAWV);
-static IIO_DEV_ATTR_CURRENT_B(ade7854_read_24bit,
-		ADE7854_IBWV);
-static IIO_DEV_ATTR_CURRENT_C(ade7854_read_24bit,
-		ADE7854_ICWV);
-static IIO_DEV_ATTR_AWATTHR(ade7854_read_32bit,
-		ADE7854_AWATTHR);
-static IIO_DEV_ATTR_BWATTHR(ade7854_read_32bit,
-		ADE7854_BWATTHR);
-static IIO_DEV_ATTR_CWATTHR(ade7854_read_32bit,
-		ADE7854_CWATTHR);
-static IIO_DEV_ATTR_AFWATTHR(ade7854_read_32bit,
-		ADE7854_AFWATTHR);
-static IIO_DEV_ATTR_BFWATTHR(ade7854_read_32bit,
-		ADE7854_BFWATTHR);
-static IIO_DEV_ATTR_CFWATTHR(ade7854_read_32bit,
-		ADE7854_CFWATTHR);
-static IIO_DEV_ATTR_AVARHR(ade7854_read_32bit,
-		ADE7854_AVARHR);
-static IIO_DEV_ATTR_BVARHR(ade7854_read_32bit,
-		ADE7854_BVARHR);
-static IIO_DEV_ATTR_CVARHR(ade7854_read_32bit,
-		ADE7854_CVARHR);
-static IIO_DEV_ATTR_AVAHR(ade7854_read_32bit,
-		ADE7854_AVAHR);
-static IIO_DEV_ATTR_BVAHR(ade7854_read_32bit,
-		ADE7854_BVAHR);
-static IIO_DEV_ATTR_CVAHR(ade7854_read_32bit,
-		ADE7854_CVAHR);
-
-static int ade7854_set_irq(struct device *dev, bool enable)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ade7854_state *st = iio_priv(indio_dev);
-
-	int ret;
-	u32 irqen;
-
-	ret = st->read_reg_32(dev, ADE7854_MASK0, &irqen);
-	if (ret)
-		goto error_ret;
-
-	if (enable)
-		irqen |= 1 << 17; /* 1: interrupt enabled when all periodical
-				     (at 8 kHz rate) DSP computations finish. */
-	else
-		irqen &= ~(1 << 17);
-
-	ret = st->write_reg_32(dev, ADE7854_MASK0, irqen);
-	if (ret)
-		goto error_ret;
-
-error_ret:
-	return ret;
-}
-
-static int ade7854_initial_setup(struct iio_dev *indio_dev)
-{
-	int ret;
-	struct device *dev = &indio_dev->dev;
-
-	/* Disable IRQ */
-	ret = ade7854_set_irq(dev, false);
-	if (ret) {
-		dev_err(dev, "disable irq failed");
-		goto err_ret;
-	}
-
-	ade7854_reset(dev);
-	msleep(ADE7854_STARTUP_DELAY);
-
-err_ret:
-	return ret;
-}
-
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("8000");
-
-static IIO_CONST_ATTR(name, "ade7854");
-
-static struct attribute *ade7854_attributes[] = {
-	&iio_dev_attr_aigain.dev_attr.attr,
-	&iio_dev_attr_bigain.dev_attr.attr,
-	&iio_dev_attr_cigain.dev_attr.attr,
-	&iio_dev_attr_nigain.dev_attr.attr,
-	&iio_dev_attr_avgain.dev_attr.attr,
-	&iio_dev_attr_bvgain.dev_attr.attr,
-	&iio_dev_attr_cvgain.dev_attr.attr,
-	&iio_dev_attr_linecyc.dev_attr.attr,
-	&iio_dev_attr_sagcyc.dev_attr.attr,
-	&iio_dev_attr_cfcyc.dev_attr.attr,
-	&iio_dev_attr_peakcyc.dev_attr.attr,
-	&iio_dev_attr_chksum.dev_attr.attr,
-	&iio_dev_attr_apparent_power_a_gain.dev_attr.attr,
-	&iio_dev_attr_apparent_power_b_gain.dev_attr.attr,
-	&iio_dev_attr_apparent_power_c_gain.dev_attr.attr,
-	&iio_dev_attr_active_power_a_offset.dev_attr.attr,
-	&iio_dev_attr_active_power_b_offset.dev_attr.attr,
-	&iio_dev_attr_active_power_c_offset.dev_attr.attr,
-	&iio_dev_attr_reactive_power_a_gain.dev_attr.attr,
-	&iio_dev_attr_reactive_power_b_gain.dev_attr.attr,
-	&iio_dev_attr_reactive_power_c_gain.dev_attr.attr,
-	&iio_dev_attr_reactive_power_a_offset.dev_attr.attr,
-	&iio_dev_attr_reactive_power_b_offset.dev_attr.attr,
-	&iio_dev_attr_reactive_power_c_offset.dev_attr.attr,
-	&iio_dev_attr_awatthr.dev_attr.attr,
-	&iio_dev_attr_bwatthr.dev_attr.attr,
-	&iio_dev_attr_cwatthr.dev_attr.attr,
-	&iio_dev_attr_afwatthr.dev_attr.attr,
-	&iio_dev_attr_bfwatthr.dev_attr.attr,
-	&iio_dev_attr_cfwatthr.dev_attr.attr,
-	&iio_dev_attr_avarhr.dev_attr.attr,
-	&iio_dev_attr_bvarhr.dev_attr.attr,
-	&iio_dev_attr_cvarhr.dev_attr.attr,
-	&iio_dev_attr_angle0.dev_attr.attr,
-	&iio_dev_attr_angle1.dev_attr.attr,
-	&iio_dev_attr_angle2.dev_attr.attr,
-	&iio_dev_attr_avahr.dev_attr.attr,
-	&iio_dev_attr_bvahr.dev_attr.attr,
-	&iio_dev_attr_cvahr.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	&iio_const_attr_name.dev_attr.attr,
-	&iio_dev_attr_vpeak.dev_attr.attr,
-	&iio_dev_attr_ipeak.dev_attr.attr,
-	&iio_dev_attr_aphcal.dev_attr.attr,
-	&iio_dev_attr_bphcal.dev_attr.attr,
-	&iio_dev_attr_cphcal.dev_attr.attr,
-	&iio_dev_attr_cf1den.dev_attr.attr,
-	&iio_dev_attr_cf2den.dev_attr.attr,
-	&iio_dev_attr_cf3den.dev_attr.attr,
-	&iio_dev_attr_airms.dev_attr.attr,
-	&iio_dev_attr_birms.dev_attr.attr,
-	&iio_dev_attr_cirms.dev_attr.attr,
-	&iio_dev_attr_nirms.dev_attr.attr,
-	&iio_dev_attr_avrms.dev_attr.attr,
-	&iio_dev_attr_bvrms.dev_attr.attr,
-	&iio_dev_attr_cvrms.dev_attr.attr,
-	&iio_dev_attr_airmsos.dev_attr.attr,
-	&iio_dev_attr_birmsos.dev_attr.attr,
-	&iio_dev_attr_cirmsos.dev_attr.attr,
-	&iio_dev_attr_avrmsos.dev_attr.attr,
-	&iio_dev_attr_bvrmsos.dev_attr.attr,
-	&iio_dev_attr_cvrmsos.dev_attr.attr,
-	&iio_dev_attr_volt_a.dev_attr.attr,
-	&iio_dev_attr_volt_b.dev_attr.attr,
-	&iio_dev_attr_volt_c.dev_attr.attr,
-	&iio_dev_attr_current_a.dev_attr.attr,
-	&iio_dev_attr_current_b.dev_attr.attr,
-	&iio_dev_attr_current_c.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ade7854_attribute_group = {
-	.attrs = ade7854_attributes,
-};
-
-static const struct iio_info ade7854_info = {
-	.attrs = &ade7854_attribute_group,
-	.driver_module = THIS_MODULE,
-};
-
-int ade7854_probe(struct iio_dev *indio_dev, struct device *dev)
-{
-	int ret;
-	struct ade7854_state *st = iio_priv(indio_dev);
-	/* setup the industrialio driver allocated elements */
-	mutex_init(&st->buf_lock);
-
-	indio_dev->dev.parent = dev;
-	indio_dev->info = &ade7854_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	/* Get the device into a sane initial state */
-	ret = ade7854_initial_setup(indio_dev);
-	if (ret)
-		goto error_unreg_dev;
-
-	return 0;
-
-error_unreg_dev:
-	iio_device_unregister(indio_dev);
-	return ret;
-}
-EXPORT_SYMBOL(ade7854_probe);
-
-int ade7854_remove(struct iio_dev *indio_dev)
-{
-	iio_device_unregister(indio_dev);
-
-	return 0;
-}
-EXPORT_SYMBOL(ade7854_remove);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADE7854/58/68/78 Polyphase Energy Meter");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/meter/ade7854.h b/drivers/staging/iio/meter/ade7854.h
deleted file mode 100644
index 52f4195cf6f4..000000000000
--- a/drivers/staging/iio/meter/ade7854.h
+++ /dev/null
@@ -1,174 +0,0 @@
-#ifndef _ADE7854_H
-#define _ADE7854_H
-
-#define ADE7854_AIGAIN    0x4380
-#define ADE7854_AVGAIN    0x4381
-#define ADE7854_BIGAIN    0x4382
-#define ADE7854_BVGAIN    0x4383
-#define ADE7854_CIGAIN    0x4384
-#define ADE7854_CVGAIN    0x4385
-#define ADE7854_NIGAIN    0x4386
-#define ADE7854_AIRMSOS   0x4387
-#define ADE7854_AVRMSOS   0x4388
-#define ADE7854_BIRMSOS   0x4389
-#define ADE7854_BVRMSOS   0x438A
-#define ADE7854_CIRMSOS   0x438B
-#define ADE7854_CVRMSOS   0x438C
-#define ADE7854_NIRMSOS   0x438D
-#define ADE7854_AVAGAIN   0x438E
-#define ADE7854_BVAGAIN   0x438F
-#define ADE7854_CVAGAIN   0x4390
-#define ADE7854_AWGAIN    0x4391
-#define ADE7854_AWATTOS   0x4392
-#define ADE7854_BWGAIN    0x4393
-#define ADE7854_BWATTOS   0x4394
-#define ADE7854_CWGAIN    0x4395
-#define ADE7854_CWATTOS   0x4396
-#define ADE7854_AVARGAIN  0x4397
-#define ADE7854_AVAROS    0x4398
-#define ADE7854_BVARGAIN  0x4399
-#define ADE7854_BVAROS    0x439A
-#define ADE7854_CVARGAIN  0x439B
-#define ADE7854_CVAROS    0x439C
-#define ADE7854_AFWGAIN   0x439D
-#define ADE7854_AFWATTOS  0x439E
-#define ADE7854_BFWGAIN   0x439F
-#define ADE7854_BFWATTOS  0x43A0
-#define ADE7854_CFWGAIN   0x43A1
-#define ADE7854_CFWATTOS  0x43A2
-#define ADE7854_AFVARGAIN 0x43A3
-#define ADE7854_AFVAROS   0x43A4
-#define ADE7854_BFVARGAIN 0x43A5
-#define ADE7854_BFVAROS   0x43A6
-#define ADE7854_CFVARGAIN 0x43A7
-#define ADE7854_CFVAROS   0x43A8
-#define ADE7854_VATHR1    0x43A9
-#define ADE7854_VATHR0    0x43AA
-#define ADE7854_WTHR1     0x43AB
-#define ADE7854_WTHR0     0x43AC
-#define ADE7854_VARTHR1   0x43AD
-#define ADE7854_VARTHR0   0x43AE
-#define ADE7854_RSV       0x43AF
-#define ADE7854_VANOLOAD  0x43B0
-#define ADE7854_APNOLOAD  0x43B1
-#define ADE7854_VARNOLOAD 0x43B2
-#define ADE7854_VLEVEL    0x43B3
-#define ADE7854_DICOEFF   0x43B5
-#define ADE7854_HPFDIS    0x43B6
-#define ADE7854_ISUMLVL   0x43B8
-#define ADE7854_ISUM      0x43BF
-#define ADE7854_AIRMS     0x43C0
-#define ADE7854_AVRMS     0x43C1
-#define ADE7854_BIRMS     0x43C2
-#define ADE7854_BVRMS     0x43C3
-#define ADE7854_CIRMS     0x43C4
-#define ADE7854_CVRMS     0x43C5
-#define ADE7854_NIRMS     0x43C6
-#define ADE7854_RUN       0xE228
-#define ADE7854_AWATTHR   0xE400
-#define ADE7854_BWATTHR   0xE401
-#define ADE7854_CWATTHR   0xE402
-#define ADE7854_AFWATTHR  0xE403
-#define ADE7854_BFWATTHR  0xE404
-#define ADE7854_CFWATTHR  0xE405
-#define ADE7854_AVARHR    0xE406
-#define ADE7854_BVARHR    0xE407
-#define ADE7854_CVARHR    0xE408
-#define ADE7854_AFVARHR   0xE409
-#define ADE7854_BFVARHR   0xE40A
-#define ADE7854_CFVARHR   0xE40B
-#define ADE7854_AVAHR     0xE40C
-#define ADE7854_BVAHR     0xE40D
-#define ADE7854_CVAHR     0xE40E
-#define ADE7854_IPEAK     0xE500
-#define ADE7854_VPEAK     0xE501
-#define ADE7854_STATUS0   0xE502
-#define ADE7854_STATUS1   0xE503
-#define ADE7854_OILVL     0xE507
-#define ADE7854_OVLVL     0xE508
-#define ADE7854_SAGLVL    0xE509
-#define ADE7854_MASK0     0xE50A
-#define ADE7854_MASK1     0xE50B
-#define ADE7854_IAWV      0xE50C
-#define ADE7854_IBWV      0xE50D
-#define ADE7854_ICWV      0xE50E
-#define ADE7854_VAWV      0xE510
-#define ADE7854_VBWV      0xE511
-#define ADE7854_VCWV      0xE512
-#define ADE7854_AWATT     0xE513
-#define ADE7854_BWATT     0xE514
-#define ADE7854_CWATT     0xE515
-#define ADE7854_AVA       0xE519
-#define ADE7854_BVA       0xE51A
-#define ADE7854_CVA       0xE51B
-#define ADE7854_CHECKSUM  0xE51F
-#define ADE7854_VNOM      0xE520
-#define ADE7854_PHSTATUS  0xE600
-#define ADE7854_ANGLE0    0xE601
-#define ADE7854_ANGLE1    0xE602
-#define ADE7854_ANGLE2    0xE603
-#define ADE7854_PERIOD    0xE607
-#define ADE7854_PHNOLOAD  0xE608
-#define ADE7854_LINECYC   0xE60C
-#define ADE7854_ZXTOUT    0xE60D
-#define ADE7854_COMPMODE  0xE60E
-#define ADE7854_GAIN      0xE60F
-#define ADE7854_CFMODE    0xE610
-#define ADE7854_CF1DEN    0xE611
-#define ADE7854_CF2DEN    0xE612
-#define ADE7854_CF3DEN    0xE613
-#define ADE7854_APHCAL    0xE614
-#define ADE7854_BPHCAL    0xE615
-#define ADE7854_CPHCAL    0xE616
-#define ADE7854_PHSIGN    0xE617
-#define ADE7854_CONFIG    0xE618
-#define ADE7854_MMODE     0xE700
-#define ADE7854_ACCMODE   0xE701
-#define ADE7854_LCYCMODE  0xE702
-#define ADE7854_PEAKCYC   0xE703
-#define ADE7854_SAGCYC    0xE704
-#define ADE7854_CFCYC     0xE705
-#define ADE7854_HSDC_CFG  0xE706
-#define ADE7854_CONFIG2   0xEC01
-
-#define ADE7854_READ_REG   0x1
-#define ADE7854_WRITE_REG  0x0
-
-#define ADE7854_MAX_TX    7
-#define ADE7854_MAX_RX    7
-#define ADE7854_STARTUP_DELAY 1
-
-#define ADE7854_SPI_SLOW	(u32)(300 * 1000)
-#define ADE7854_SPI_BURST	(u32)(1000 * 1000)
-#define ADE7854_SPI_FAST	(u32)(2000 * 1000)
-
-/**
- * struct ade7854_state - device instance specific data
- * @spi:			actual spi_device
- * @indio_dev:		industrial I/O device structure
- * @buf_lock:		mutex to protect tx and rx
- * @tx:			transmit buffer
- * @rx:			receive buffer
- **/
-struct ade7854_state {
-	struct spi_device	*spi;
-	struct i2c_client	*i2c;
-	int			(*read_reg_8)(struct device *, u16, u8 *);
-	int			(*read_reg_16)(struct device *, u16, u16 *);
-	int			(*read_reg_24)(struct device *, u16, u32 *);
-	int			(*read_reg_32)(struct device *, u16, u32 *);
-	int			(*write_reg_8)(struct device *, u16, u8);
-	int			(*write_reg_16)(struct device *, u16, u16);
-	int			(*write_reg_24)(struct device *, u16, u32);
-	int			(*write_reg_32)(struct device *, u16, u32);
-	int			irq;
-	struct mutex		buf_lock;
-	u8			tx[ADE7854_MAX_TX] ____cacheline_aligned;
-	u8			rx[ADE7854_MAX_RX];
-
-};
-
-int ade7854_probe(struct iio_dev *indio_dev, struct device *dev);
-int ade7854_remove(struct iio_dev *indio_dev);
-
-#endif
diff --git a/drivers/staging/iio/meter/meter.h b/drivers/staging/iio/meter/meter.h
deleted file mode 100644
index dfba510f29be..000000000000
--- a/drivers/staging/iio/meter/meter.h
+++ /dev/null
@@ -1,400 +0,0 @@
-#ifndef _METER_H
-#define _METER_H
-
-#include <linux/iio/sysfs.h>
-
-/* metering ic types of attribute */
-
-#define IIO_DEV_ATTR_CURRENT_A_OFFSET(_mode, _show, _store, _addr)	\
-	IIO_DEVICE_ATTR(current_a_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_B_OFFSET(_mode, _show, _store, _addr)	\
-	IIO_DEVICE_ATTR(current_b_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_C_OFFSET(_mode, _show, _store, _addr)	\
-	IIO_DEVICE_ATTR(current_c_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VOLT_A_OFFSET(_mode, _show, _store, _addr)      \
-	IIO_DEVICE_ATTR(volt_a_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VOLT_B_OFFSET(_mode, _show, _store, _addr)      \
-	IIO_DEVICE_ATTR(volt_b_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VOLT_C_OFFSET(_mode, _show, _store, _addr)      \
-	IIO_DEVICE_ATTR(volt_c_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_REACTIVE_POWER_A_OFFSET(_mode, _show, _store, _addr)   \
-	IIO_DEVICE_ATTR(reactive_power_a_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_REACTIVE_POWER_B_OFFSET(_mode, _show, _store, _addr)   \
-	IIO_DEVICE_ATTR(reactive_power_b_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_REACTIVE_POWER_C_OFFSET(_mode, _show, _store, _addr)   \
-	IIO_DEVICE_ATTR(reactive_power_c_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_ACTIVE_POWER_A_OFFSET(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(active_power_a_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_ACTIVE_POWER_B_OFFSET(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(active_power_b_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_ACTIVE_POWER_C_OFFSET(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(active_power_c_offset, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_A_GAIN(_mode, _show, _store, _addr)	\
-	IIO_DEVICE_ATTR(current_a_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_B_GAIN(_mode, _show, _store, _addr)	\
-	IIO_DEVICE_ATTR(current_b_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_C_GAIN(_mode, _show, _store, _addr)	\
-	IIO_DEVICE_ATTR(current_c_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_APPARENT_POWER_A_GAIN(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(apparent_power_a_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_APPARENT_POWER_B_GAIN(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(apparent_power_b_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_APPARENT_POWER_C_GAIN(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(apparent_power_c_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_ACTIVE_POWER_GAIN(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(active_power_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_ACTIVE_POWER_A_GAIN(_mode, _show, _store, _addr)   \
-	IIO_DEVICE_ATTR(active_power_a_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_ACTIVE_POWER_B_GAIN(_mode, _show, _store, _addr)   \
-	IIO_DEVICE_ATTR(active_power_b_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_ACTIVE_POWER_C_GAIN(_mode, _show, _store, _addr)   \
-	IIO_DEVICE_ATTR(active_power_c_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_REACTIVE_POWER_A_GAIN(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(reactive_power_a_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_REACTIVE_POWER_B_GAIN(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(reactive_power_b_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_REACTIVE_POWER_C_GAIN(_mode, _show, _store, _addr)     \
-	IIO_DEVICE_ATTR(reactive_power_c_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_A(_show, _addr)			\
-	IIO_DEVICE_ATTR(current_a, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_B(_show, _addr)			\
-	IIO_DEVICE_ATTR(current_b, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_CURRENT_C(_show, _addr)			\
-	IIO_DEVICE_ATTR(current_c, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_VOLT_A(_show, _addr)			\
-	IIO_DEVICE_ATTR(volt_a, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_VOLT_B(_show, _addr)			\
-	IIO_DEVICE_ATTR(volt_b, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_VOLT_C(_show, _addr)			\
-	IIO_DEVICE_ATTR(volt_c, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_AENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(aenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_LENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(lenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_RAENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(raenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_LAENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(laenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_VAENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(vaenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_LVAENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(lvaenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_RVAENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(rvaenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_LVARENERGY(_show, _addr)			\
-	IIO_DEVICE_ATTR(lvarenergy, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_CHKSUM(_show, _addr)                       \
-	IIO_DEVICE_ATTR(chksum, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_ANGLE0(_show, _addr)                       \
-	IIO_DEVICE_ATTR(angle0, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_ANGLE1(_show, _addr)                       \
-	IIO_DEVICE_ATTR(angle1, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_ANGLE2(_show, _addr)                       \
-	IIO_DEVICE_ATTR(angle2, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_AWATTHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(awatthr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_BWATTHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(bwatthr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_CWATTHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(cwatthr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_AFWATTHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(afwatthr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_BFWATTHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(bfwatthr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_CFWATTHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(cfwatthr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_AVARHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(avarhr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_BVARHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(bvarhr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_CVARHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(cvarhr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_AVAHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(avahr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_BVAHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(bvahr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_CVAHR(_show, _addr)			\
-	IIO_DEVICE_ATTR(cvahr, S_IRUGO, _show, NULL, _addr)
-
-#define IIO_DEV_ATTR_IOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(ios, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(vos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_PHCAL(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(phcal, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_APHCAL(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(aphcal, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BPHCAL(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(bphcal, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CPHCAL(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cphcal, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_APOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(apos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AAPOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(aapos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BAPOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(bapos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CAPOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(capos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AVRMSGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(avrmsgain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BVRMSGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(bvrmsgain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CVRMSGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cvrmsgain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AIGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(aigain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BIGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(bigain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CIGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cigain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_NIGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(nigain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AVGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(avgain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BVGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(bvgain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CVGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cvgain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_WGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(wgain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_WDIV(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(wdiv, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CFNUM(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cfnum, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CFDEN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cfden, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CF1DEN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cf1den, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CF2DEN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cf2den, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CF3DEN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cf3den, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_IRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(irms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(vrms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AIRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(airms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BIRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(birms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CIRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cirms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_NIRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(nirms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AVRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(avrms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BVRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(bvrms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CVRMS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cvrms, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_IRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(irmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(vrmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AIRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(airmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BIRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(birmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CIRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cirmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_AVRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(avrmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_BVRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(bvrmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CVRMSOS(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cvrmsos, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VAGAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(vagain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_PGA_GAIN(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(pga_gain, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VADIV(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(vadiv, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_LINECYC(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(linecyc, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_SAGCYC(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(sagcyc, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CFCYC(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(cfcyc, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_PEAKCYC(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(peakcyc, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_SAGLVL(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(saglvl, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_IPKLVL(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(ipklvl, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VPKLVL(_mode, _show, _store, _addr)                \
-	IIO_DEVICE_ATTR(vpklvl, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_IPEAK(_mode, _show, _store, _addr)			\
-	IIO_DEVICE_ATTR(ipeak, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_RIPEAK(_mode, _show, _store, _addr)		\
-	IIO_DEVICE_ATTR(ripeak, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VPEAK(_mode, _show, _store, _addr)			\
-	IIO_DEVICE_ATTR(vpeak, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_RVPEAK(_mode, _show, _store, _addr)		\
-	IIO_DEVICE_ATTR(rvpeak, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_VPERIOD(_mode, _show, _store, _addr)		\
-	IIO_DEVICE_ATTR(vperiod, _mode, _show, _store, _addr)
-
-#define IIO_DEV_ATTR_CH_OFF(_num, _mode, _show, _store, _addr)		\
-	IIO_DEVICE_ATTR(choff_##_num, _mode, _show, _store, _addr)
-
-/* active energy register, AENERGY, is more than half full */
-#define IIO_EVENT_ATTR_AENERGY_HALF_FULL(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(aenergy_half_full, _evlist, _show, _store, _mask)
-
-/* a SAG on the line voltage */
-#define IIO_EVENT_ATTR_LINE_VOLT_SAG(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(line_volt_sag, _evlist, _show, _store, _mask)
-
-/*
- * Indicates the end of energy accumulation over an integer number
- * of half line cycles
- */
-#define IIO_EVENT_ATTR_CYCEND(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(cycend, _evlist, _show, _store, _mask)
-
-/* on the rising and falling edge of the voltage waveform */
-#define IIO_EVENT_ATTR_ZERO_CROSS(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(zero_cross, _evlist, _show, _store, _mask)
-
-/* the active energy register has overflowed */
-#define IIO_EVENT_ATTR_AENERGY_OVERFLOW(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(aenergy_overflow, _evlist, _show, _store, _mask)
-
-/* the apparent energy register has overflowed */
-#define IIO_EVENT_ATTR_VAENERGY_OVERFLOW(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(vaenergy_overflow, _evlist, _show, _store, _mask)
-
-/* the active energy register, VAENERGY, is more than half full */
-#define IIO_EVENT_ATTR_VAENERGY_HALF_FULL(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(vaenergy_half_full, _evlist, _show, _store, _mask)
-
-/* the power has gone from negative to positive */
-#define IIO_EVENT_ATTR_PPOS(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(ppos, _evlist, _show, _store, _mask)
-
-/* the power has gone from positive to negative */
-#define IIO_EVENT_ATTR_PNEG(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(pneg, _evlist, _show, _store, _mask)
-
-/* waveform sample from Channel 1 has exceeded the IPKLVL value */
-#define IIO_EVENT_ATTR_IPKLVL_EXC(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(ipklvl_exc, _evlist, _show, _store, _mask)
-
-/* waveform sample from Channel 2 has exceeded the VPKLVL value */
-#define IIO_EVENT_ATTR_VPKLVL_EXC(_evlist, _show, _store, _mask) \
-	IIO_EVENT_ATTR_SH(vpklvl_exc, _evlist, _show, _store, _mask)
-
-#endif /* _METER_H */
diff --git a/drivers/staging/iio/resolver/Kconfig b/drivers/staging/iio/resolver/Kconfig
deleted file mode 100644
index 1c7e2860d6b7..000000000000
--- a/drivers/staging/iio/resolver/Kconfig
+++ /dev/null
@@ -1,39 +0,0 @@
-#
-# Resolver/Synchro drivers
-#
-menu "Resolver to digital converters"
-
-config AD2S90
-	tristate "Analog Devices ad2s90 driver"
-	depends on SPI
-	help
-	  Say yes here to build support for Analog Devices spi resolver
-	  to digital converters, ad2s90, provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad2s90.
-
-config AD2S1200
-	tristate "Analog Devices ad2s1200/ad2s1205 driver"
-	depends on SPI
-	depends on GPIOLIB || COMPILE_TEST
-	help
-	  Say yes here to build support for Analog Devices spi resolver
-	  to digital converters, ad2s1200 and ad2s1205, provides direct access
-	  via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad2s1200.
-
-config AD2S1210
-	tristate "Analog Devices ad2s1210 driver"
-	depends on SPI
-	depends on GPIOLIB || COMPILE_TEST
-	help
-	  Say yes here to build support for Analog Devices spi resolver
-	  to digital converters, ad2s1210, provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad2s1210.
-
-endmenu
diff --git a/drivers/staging/iio/resolver/Makefile b/drivers/staging/iio/resolver/Makefile
deleted file mode 100644
index 14375e444ebf..000000000000
--- a/drivers/staging/iio/resolver/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for Resolver/Synchro drivers
-#
-
-obj-$(CONFIG_AD2S90) += ad2s90.o
-obj-$(CONFIG_AD2S1200) += ad2s1200.o
-obj-$(CONFIG_AD2S1210) += ad2s1210.o
diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
deleted file mode 100644
index c17893b4918c..000000000000
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * ad2s1200.c simple support for the ADI Resolver to Digital Converters:
- * AD2S1200/1205
- *
- * Copyright (c) 2010-2010 Analog Devices Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-#include <linux/types.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/delay.h>
-#include <linux/gpio.h>
-#include <linux/module.h>
-#include <linux/bitops.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-#define DRV_NAME "ad2s1200"
-
-/* input pin sample and rdvel is controlled by driver */
-#define AD2S1200_PN	2
-
-/* input clock on serial interface */
-#define AD2S1200_HZ	8192000
-/* clock period in nano second */
-#define AD2S1200_TSCLK	(1000000000/AD2S1200_HZ)
-
-struct ad2s1200_state {
-	struct mutex lock;
-	struct spi_device *sdev;
-	int sample;
-	int rdvel;
-	u8 rx[2] ____cacheline_aligned;
-};
-
-static int ad2s1200_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long m)
-{
-	int ret = 0;
-	s16 vel;
-	struct ad2s1200_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->lock);
-	gpio_set_value(st->sample, 0);
-	/* delay (6 * AD2S1200_TSCLK + 20) nano seconds */
-	udelay(1);
-	gpio_set_value(st->sample, 1);
-	gpio_set_value(st->rdvel, !!(chan->type == IIO_ANGL));
-	ret = spi_read(st->sdev, st->rx, 2);
-	if (ret < 0) {
-		mutex_unlock(&st->lock);
-		return ret;
-	}
-
-	switch (chan->type) {
-	case IIO_ANGL:
-		*val = (((u16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);
-		break;
-	case IIO_ANGL_VEL:
-		vel = (((s16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);
-		vel = sign_extend32(vel, 11);
-		*val = vel;
-		break;
-	default:
-		mutex_unlock(&st->lock);
-		return -EINVAL;
-	}
-	/* delay (2 * AD2S1200_TSCLK + 20) ns for sample pulse */
-	udelay(1);
-	mutex_unlock(&st->lock);
-	return IIO_VAL_INT;
-}
-
-static const struct iio_chan_spec ad2s1200_channels[] = {
-	{
-		.type = IIO_ANGL,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-	}, {
-		.type = IIO_ANGL_VEL,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-	}
-};
-
-static const struct iio_info ad2s1200_info = {
-	.read_raw = &ad2s1200_read_raw,
-	.driver_module = THIS_MODULE,
-};
-
-static int ad2s1200_probe(struct spi_device *spi)
-{
-	struct ad2s1200_state *st;
-	struct iio_dev *indio_dev;
-	int pn, ret = 0;
-	unsigned short *pins = spi->dev.platform_data;
-
-	for (pn = 0; pn < AD2S1200_PN; pn++) {
-		ret = devm_gpio_request_one(&spi->dev, pins[pn], GPIOF_DIR_OUT,
-					    DRV_NAME);
-		if (ret) {
-			dev_err(&spi->dev, "request gpio pin %d failed\n",
-							pins[pn]);
-			return ret;
-		}
-	}
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	spi_set_drvdata(spi, indio_dev);
-	st = iio_priv(indio_dev);
-	mutex_init(&st->lock);
-	st->sdev = spi;
-	st->sample = pins[0];
-	st->rdvel = pins[1];
-
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &ad2s1200_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = ad2s1200_channels;
-	indio_dev->num_channels = ARRAY_SIZE(ad2s1200_channels);
-	indio_dev->name = spi_get_device_id(spi)->name;
-
-	ret = devm_iio_device_register(&spi->dev, indio_dev);
-	if (ret)
-		return ret;
-
-	spi->max_speed_hz = AD2S1200_HZ;
-	spi->mode = SPI_MODE_3;
-	spi_setup(spi);
-
-	return 0;
-}
-
-static const struct spi_device_id ad2s1200_id[] = {
-	{ "ad2s1200" },
-	{ "ad2s1205" },
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ad2s1200_id);
-
-static struct spi_driver ad2s1200_driver = {
-	.driver = {
-		.name = DRV_NAME,
-		.owner = THIS_MODULE,
-	},
-	.probe = ad2s1200_probe,
-	.id_table = ad2s1200_id,
-};
-module_spi_driver(ad2s1200_driver);
-
-MODULE_AUTHOR("Graff Yang <graff.yang@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices AD2S1200/1205 Resolver to Digital SPI driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
deleted file mode 100644
index 7bc3e4a73834..000000000000
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ /dev/null
@@ -1,748 +0,0 @@
-/*
- * ad2s1210.c support for the ADI Resolver to Digital Converters: AD2S1210
- *
- * Copyright (c) 2010-2010 Analog Devices Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-#include <linux/types.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/delay.h>
-#include <linux/gpio.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include "ad2s1210.h"
-
-#define DRV_NAME "ad2s1210"
-
-#define AD2S1210_DEF_CONTROL		0x7E
-
-#define AD2S1210_MSB_IS_HIGH		0x80
-#define AD2S1210_MSB_IS_LOW		0x7F
-#define AD2S1210_PHASE_LOCK_RANGE_44	0x20
-#define AD2S1210_ENABLE_HYSTERESIS	0x10
-#define AD2S1210_SET_ENRES1		0x08
-#define AD2S1210_SET_ENRES0		0x04
-#define AD2S1210_SET_RES1		0x02
-#define AD2S1210_SET_RES0		0x01
-
-#define AD2S1210_SET_ENRESOLUTION	(AD2S1210_SET_ENRES1 |	\
-					 AD2S1210_SET_ENRES0)
-#define AD2S1210_SET_RESOLUTION		(AD2S1210_SET_RES1 | AD2S1210_SET_RES0)
-
-#define AD2S1210_REG_POSITION		0x80
-#define AD2S1210_REG_VELOCITY		0x82
-#define AD2S1210_REG_LOS_THRD		0x88
-#define AD2S1210_REG_DOS_OVR_THRD	0x89
-#define AD2S1210_REG_DOS_MIS_THRD	0x8A
-#define AD2S1210_REG_DOS_RST_MAX_THRD	0x8B
-#define AD2S1210_REG_DOS_RST_MIN_THRD	0x8C
-#define AD2S1210_REG_LOT_HIGH_THRD	0x8D
-#define AD2S1210_REG_LOT_LOW_THRD	0x8E
-#define AD2S1210_REG_EXCIT_FREQ		0x91
-#define AD2S1210_REG_CONTROL		0x92
-#define AD2S1210_REG_SOFT_RESET		0xF0
-#define AD2S1210_REG_FAULT		0xFF
-
-/* pin SAMPLE, A0, A1, RES0, RES1, is controlled by driver */
-#define AD2S1210_SAA		3
-#define AD2S1210_PN		(AD2S1210_SAA + AD2S1210_RES)
-
-#define AD2S1210_MIN_CLKIN	6144000
-#define AD2S1210_MAX_CLKIN	10240000
-#define AD2S1210_MIN_EXCIT	2000
-#define AD2S1210_MAX_EXCIT	20000
-#define AD2S1210_MIN_FCW	0x4
-#define AD2S1210_MAX_FCW	0x50
-
-/* default input clock on serial interface */
-#define AD2S1210_DEF_CLKIN	8192000
-/* clock period in nano second */
-#define AD2S1210_DEF_TCK	(1000000000/AD2S1210_DEF_CLKIN)
-#define AD2S1210_DEF_EXCIT	10000
-
-enum ad2s1210_mode {
-	MOD_POS = 0,
-	MOD_VEL,
-	MOD_CONFIG,
-	MOD_RESERVED,
-};
-
-static const unsigned int ad2s1210_resolution_value[] = { 10, 12, 14, 16 };
-
-struct ad2s1210_state {
-	const struct ad2s1210_platform_data *pdata;
-	struct mutex lock;
-	struct spi_device *sdev;
-	unsigned int fclkin;
-	unsigned int fexcit;
-	bool hysteresis;
-	bool old_data;
-	u8 resolution;
-	enum ad2s1210_mode mode;
-	u8 rx[2] ____cacheline_aligned;
-	u8 tx[2] ____cacheline_aligned;
-};
-
-static const int ad2s1210_mode_vals[4][2] = {
-	[MOD_POS] = { 0, 0 },
-	[MOD_VEL] = { 0, 1 },
-	[MOD_CONFIG] = { 1, 0 },
-};
-static inline void ad2s1210_set_mode(enum ad2s1210_mode mode,
-				     struct ad2s1210_state *st)
-{
-	gpio_set_value(st->pdata->a[0], ad2s1210_mode_vals[mode][0]);
-	gpio_set_value(st->pdata->a[1], ad2s1210_mode_vals[mode][1]);
-	st->mode = mode;
-}
-
-/* write 1 bytes (address or data) to the chip */
-static int ad2s1210_config_write(struct ad2s1210_state *st, u8 data)
-{
-	int ret;
-
-	ad2s1210_set_mode(MOD_CONFIG, st);
-	st->tx[0] = data;
-	ret = spi_write(st->sdev, st->tx, 1);
-	if (ret < 0)
-		return ret;
-	st->old_data = true;
-
-	return 0;
-}
-
-/* read value from one of the registers */
-static int ad2s1210_config_read(struct ad2s1210_state *st,
-		       unsigned char address)
-{
-	struct spi_transfer xfer = {
-		.len = 2,
-		.rx_buf = st->rx,
-		.tx_buf = st->tx,
-	};
-	int ret = 0;
-
-	ad2s1210_set_mode(MOD_CONFIG, st);
-	st->tx[0] = address | AD2S1210_MSB_IS_HIGH;
-	st->tx[1] = AD2S1210_REG_FAULT;
-	ret = spi_sync_transfer(st->sdev, &xfer, 1);
-	if (ret < 0)
-		return ret;
-	st->old_data = true;
-
-	return st->rx[1];
-}
-
-static inline
-int ad2s1210_update_frequency_control_word(struct ad2s1210_state *st)
-{
-	int ret;
-	unsigned char fcw;
-
-	fcw = (unsigned char)(st->fexcit * (1 << 15) / st->fclkin);
-	if (fcw < AD2S1210_MIN_FCW || fcw > AD2S1210_MAX_FCW) {
-		dev_err(&st->sdev->dev, "ad2s1210: FCW out of range\n");
-		return -ERANGE;
-	}
-
-	ret = ad2s1210_config_write(st, AD2S1210_REG_EXCIT_FREQ);
-	if (ret < 0)
-		return ret;
-
-	return ad2s1210_config_write(st, fcw);
-}
-
-static unsigned char ad2s1210_read_resolution_pin(struct ad2s1210_state *st)
-{
-	return ad2s1210_resolution_value[
-		(gpio_get_value(st->pdata->res[0]) << 1) |
-		gpio_get_value(st->pdata->res[1])];
-}
-
-static const int ad2s1210_res_pins[4][2] = {
-	{ 0, 0 }, {0, 1}, {1, 0}, {1, 1}
-};
-
-static inline void ad2s1210_set_resolution_pin(struct ad2s1210_state *st)
-{
-	gpio_set_value(st->pdata->res[0],
-		       ad2s1210_res_pins[(st->resolution - 10)/2][0]);
-	gpio_set_value(st->pdata->res[1],
-		       ad2s1210_res_pins[(st->resolution - 10)/2][1]);
-}
-
-static inline int ad2s1210_soft_reset(struct ad2s1210_state *st)
-{
-	int ret;
-
-	ret = ad2s1210_config_write(st, AD2S1210_REG_SOFT_RESET);
-	if (ret < 0)
-		return ret;
-
-	return ad2s1210_config_write(st, 0x0);
-}
-
-static ssize_t ad2s1210_show_fclkin(struct device *dev,
-				    struct device_attribute *attr,
-				    char *buf)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-
-	return sprintf(buf, "%u\n", st->fclkin);
-}
-
-static ssize_t ad2s1210_store_fclkin(struct device *dev,
-				     struct device_attribute *attr,
-				     const char *buf,
-				     size_t len)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned int fclkin;
-	int ret;
-
-	ret = kstrtouint(buf, 10, &fclkin);
-	if (ret)
-		return ret;
-	if (fclkin < AD2S1210_MIN_CLKIN || fclkin > AD2S1210_MAX_CLKIN) {
-		dev_err(dev, "ad2s1210: fclkin out of range\n");
-		return -EINVAL;
-	}
-
-	mutex_lock(&st->lock);
-	st->fclkin = fclkin;
-
-	ret = ad2s1210_update_frequency_control_word(st);
-	if (ret < 0)
-		goto error_ret;
-	ret = ad2s1210_soft_reset(st);
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret < 0 ? ret : len;
-}
-
-static ssize_t ad2s1210_show_fexcit(struct device *dev,
-				    struct device_attribute *attr,
-				    char *buf)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-
-	return sprintf(buf, "%u\n", st->fexcit);
-}
-
-static ssize_t ad2s1210_store_fexcit(struct device *dev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t len)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned int fexcit;
-	int ret;
-
-	ret = kstrtouint(buf, 10, &fexcit);
-	if (ret < 0)
-		return ret;
-	if (fexcit < AD2S1210_MIN_EXCIT || fexcit > AD2S1210_MAX_EXCIT) {
-		dev_err(dev,
-			"ad2s1210: excitation frequency out of range\n");
-		return -EINVAL;
-	}
-	mutex_lock(&st->lock);
-	st->fexcit = fexcit;
-	ret = ad2s1210_update_frequency_control_word(st);
-	if (ret < 0)
-		goto error_ret;
-	ret = ad2s1210_soft_reset(st);
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret < 0 ? ret : len;
-}
-
-static ssize_t ad2s1210_show_control(struct device *dev,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	int ret;
-
-	mutex_lock(&st->lock);
-	ret = ad2s1210_config_read(st, AD2S1210_REG_CONTROL);
-	mutex_unlock(&st->lock);
-	return ret < 0 ? ret : sprintf(buf, "0x%x\n", ret);
-}
-
-static ssize_t ad2s1210_store_control(struct device *dev,
-			struct device_attribute *attr,
-			const char *buf, size_t len)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned char udata;
-	unsigned char data;
-	int ret;
-
-	ret = kstrtou8(buf, 16, &udata);
-	if (ret)
-		return -EINVAL;
-
-	mutex_lock(&st->lock);
-	ret = ad2s1210_config_write(st, AD2S1210_REG_CONTROL);
-	if (ret < 0)
-		goto error_ret;
-	data = udata & AD2S1210_MSB_IS_LOW;
-	ret = ad2s1210_config_write(st, data);
-	if (ret < 0)
-		goto error_ret;
-
-	ret = ad2s1210_config_read(st, AD2S1210_REG_CONTROL);
-	if (ret < 0)
-		goto error_ret;
-	if (ret & AD2S1210_MSB_IS_HIGH) {
-		ret = -EIO;
-		dev_err(dev,
-			"ad2s1210: write control register fail\n");
-		goto error_ret;
-	}
-	st->resolution
-		= ad2s1210_resolution_value[data & AD2S1210_SET_RESOLUTION];
-	if (st->pdata->gpioin) {
-		data = ad2s1210_read_resolution_pin(st);
-		if (data != st->resolution)
-			dev_warn(dev, "ad2s1210: resolution settings not match\n");
-	} else
-		ad2s1210_set_resolution_pin(st);
-
-	ret = len;
-	st->hysteresis = !!(data & AD2S1210_ENABLE_HYSTERESIS);
-
-error_ret:
-	mutex_unlock(&st->lock);
-	return ret;
-}
-
-static ssize_t ad2s1210_show_resolution(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-
-	return sprintf(buf, "%d\n", st->resolution);
-}
-
-static ssize_t ad2s1210_store_resolution(struct device *dev,
-			struct device_attribute *attr,
-			const char *buf, size_t len)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned char data;
-	unsigned char udata;
-	int ret;
-
-	ret = kstrtou8(buf, 10, &udata);
-	if (ret || udata < 10 || udata > 16) {
-		dev_err(dev, "ad2s1210: resolution out of range\n");
-		return -EINVAL;
-	}
-	mutex_lock(&st->lock);
-	ret = ad2s1210_config_read(st, AD2S1210_REG_CONTROL);
-	if (ret < 0)
-		goto error_ret;
-	data = ret;
-	data &= ~AD2S1210_SET_RESOLUTION;
-	data |= (udata - 10) >> 1;
-	ret = ad2s1210_config_write(st, AD2S1210_REG_CONTROL);
-	if (ret < 0)
-		goto error_ret;
-	ret = ad2s1210_config_write(st, data & AD2S1210_MSB_IS_LOW);
-	if (ret < 0)
-		goto error_ret;
-	ret = ad2s1210_config_read(st, AD2S1210_REG_CONTROL);
-	if (ret < 0)
-		goto error_ret;
-	data = ret;
-	if (data & AD2S1210_MSB_IS_HIGH) {
-		ret = -EIO;
-		dev_err(dev, "ad2s1210: setting resolution fail\n");
-		goto error_ret;
-	}
-	st->resolution
-		= ad2s1210_resolution_value[data & AD2S1210_SET_RESOLUTION];
-	if (st->pdata->gpioin) {
-		data = ad2s1210_read_resolution_pin(st);
-		if (data != st->resolution)
-			dev_warn(dev, "ad2s1210: resolution settings not match\n");
-	} else
-		ad2s1210_set_resolution_pin(st);
-	ret = len;
-error_ret:
-	mutex_unlock(&st->lock);
-	return ret;
-}
-
-/* read the fault register since last sample */
-static ssize_t ad2s1210_show_fault(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	int ret;
-
-	mutex_lock(&st->lock);
-	ret = ad2s1210_config_read(st, AD2S1210_REG_FAULT);
-	mutex_unlock(&st->lock);
-
-	return ret ? ret : sprintf(buf, "0x%x\n", ret);
-}
-
-static ssize_t ad2s1210_clear_fault(struct device *dev,
-				    struct device_attribute *attr,
-				    const char *buf,
-				    size_t len)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	int ret;
-
-	mutex_lock(&st->lock);
-	gpio_set_value(st->pdata->sample, 0);
-	/* delay (2 * tck + 20) nano seconds */
-	udelay(1);
-	gpio_set_value(st->pdata->sample, 1);
-	ret = ad2s1210_config_read(st, AD2S1210_REG_FAULT);
-	if (ret < 0)
-		goto error_ret;
-	gpio_set_value(st->pdata->sample, 0);
-	gpio_set_value(st->pdata->sample, 1);
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return ret < 0 ? ret : len;
-}
-
-static ssize_t ad2s1210_show_reg(struct device *dev,
-				 struct device_attribute *attr,
-				 char *buf)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	struct iio_dev_attr *iattr = to_iio_dev_attr(attr);
-	int ret;
-
-	mutex_lock(&st->lock);
-	ret = ad2s1210_config_read(st, iattr->address);
-	mutex_unlock(&st->lock);
-
-	return ret < 0 ? ret : sprintf(buf, "%d\n", ret);
-}
-
-static ssize_t ad2s1210_store_reg(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t len)
-{
-	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned char data;
-	int ret;
-	struct iio_dev_attr *iattr = to_iio_dev_attr(attr);
-
-	ret = kstrtou8(buf, 10, &data);
-	if (ret)
-		return -EINVAL;
-	mutex_lock(&st->lock);
-	ret = ad2s1210_config_write(st, iattr->address);
-	if (ret < 0)
-		goto error_ret;
-	ret = ad2s1210_config_write(st, data & AD2S1210_MSB_IS_LOW);
-error_ret:
-	mutex_unlock(&st->lock);
-	return ret < 0 ? ret : len;
-}
-
-static int ad2s1210_read_raw(struct iio_dev *indio_dev,
-			     struct iio_chan_spec const *chan,
-			     int *val,
-			     int *val2,
-			     long m)
-{
-	struct ad2s1210_state *st = iio_priv(indio_dev);
-	bool negative;
-	int ret = 0;
-	u16 pos;
-	s16 vel;
-
-	mutex_lock(&st->lock);
-	gpio_set_value(st->pdata->sample, 0);
-	/* delay (6 * tck + 20) nano seconds */
-	udelay(1);
-
-	switch (chan->type) {
-	case IIO_ANGL:
-		ad2s1210_set_mode(MOD_POS, st);
-		break;
-	case IIO_ANGL_VEL:
-		ad2s1210_set_mode(MOD_VEL, st);
-		break;
-	default:
-	       ret = -EINVAL;
-	       break;
-	}
-	if (ret < 0)
-		goto error_ret;
-	ret = spi_read(st->sdev, st->rx, 2);
-	if (ret < 0)
-		goto error_ret;
-
-	switch (chan->type) {
-	case IIO_ANGL:
-		pos = be16_to_cpup((__be16 *) st->rx);
-		if (st->hysteresis)
-			pos >>= 16 - st->resolution;
-		*val = pos;
-		ret = IIO_VAL_INT;
-		break;
-	case IIO_ANGL_VEL:
-		negative = st->rx[0] & 0x80;
-		vel = be16_to_cpup((__be16 *) st->rx);
-		vel >>= 16 - st->resolution;
-		if (vel & 0x8000) {
-			negative = (0xffff >> st->resolution) << st->resolution;
-			vel |= negative;
-		}
-		*val = vel;
-		ret = IIO_VAL_INT;
-		break;
-	default:
-		mutex_unlock(&st->lock);
-		return -EINVAL;
-	}
-
-error_ret:
-	gpio_set_value(st->pdata->sample, 1);
-	/* delay (2 * tck + 20) nano seconds */
-	udelay(1);
-	mutex_unlock(&st->lock);
-	return ret;
-}
-
-static IIO_DEVICE_ATTR(fclkin, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_fclkin, ad2s1210_store_fclkin, 0);
-static IIO_DEVICE_ATTR(fexcit, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_fexcit,	ad2s1210_store_fexcit, 0);
-static IIO_DEVICE_ATTR(control, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_control, ad2s1210_store_control, 0);
-static IIO_DEVICE_ATTR(bits, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_resolution, ad2s1210_store_resolution, 0);
-static IIO_DEVICE_ATTR(fault, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_fault, ad2s1210_clear_fault, 0);
-
-static IIO_DEVICE_ATTR(los_thrd, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_reg, ad2s1210_store_reg,
-		       AD2S1210_REG_LOS_THRD);
-static IIO_DEVICE_ATTR(dos_ovr_thrd, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_reg, ad2s1210_store_reg,
-		       AD2S1210_REG_DOS_OVR_THRD);
-static IIO_DEVICE_ATTR(dos_mis_thrd, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_reg, ad2s1210_store_reg,
-		       AD2S1210_REG_DOS_MIS_THRD);
-static IIO_DEVICE_ATTR(dos_rst_max_thrd, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_reg, ad2s1210_store_reg,
-		       AD2S1210_REG_DOS_RST_MAX_THRD);
-static IIO_DEVICE_ATTR(dos_rst_min_thrd, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_reg, ad2s1210_store_reg,
-		       AD2S1210_REG_DOS_RST_MIN_THRD);
-static IIO_DEVICE_ATTR(lot_high_thrd, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_reg, ad2s1210_store_reg,
-		       AD2S1210_REG_LOT_HIGH_THRD);
-static IIO_DEVICE_ATTR(lot_low_thrd, S_IRUGO | S_IWUSR,
-		       ad2s1210_show_reg, ad2s1210_store_reg,
-		       AD2S1210_REG_LOT_LOW_THRD);
-
-
-static const struct iio_chan_spec ad2s1210_channels[] = {
-	{
-		.type = IIO_ANGL,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-	}, {
-		.type = IIO_ANGL_VEL,
-		.indexed = 1,
-		.channel = 0,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-	}
-};
-
-static struct attribute *ad2s1210_attributes[] = {
-	&iio_dev_attr_fclkin.dev_attr.attr,
-	&iio_dev_attr_fexcit.dev_attr.attr,
-	&iio_dev_attr_control.dev_attr.attr,
-	&iio_dev_attr_bits.dev_attr.attr,
-	&iio_dev_attr_fault.dev_attr.attr,
-	&iio_dev_attr_los_thrd.dev_attr.attr,
-	&iio_dev_attr_dos_ovr_thrd.dev_attr.attr,
-	&iio_dev_attr_dos_mis_thrd.dev_attr.attr,
-	&iio_dev_attr_dos_rst_max_thrd.dev_attr.attr,
-	&iio_dev_attr_dos_rst_min_thrd.dev_attr.attr,
-	&iio_dev_attr_lot_high_thrd.dev_attr.attr,
-	&iio_dev_attr_lot_low_thrd.dev_attr.attr,
-	NULL,
-};
-
-static const struct attribute_group ad2s1210_attribute_group = {
-	.attrs = ad2s1210_attributes,
-};
-
-static int ad2s1210_initial(struct ad2s1210_state *st)
-{
-	unsigned char data;
-	int ret;
-
-	mutex_lock(&st->lock);
-	if (st->pdata->gpioin)
-		st->resolution = ad2s1210_read_resolution_pin(st);
-	else
-		ad2s1210_set_resolution_pin(st);
-
-	ret = ad2s1210_config_write(st, AD2S1210_REG_CONTROL);
-	if (ret < 0)
-		goto error_ret;
-	data = AD2S1210_DEF_CONTROL & ~(AD2S1210_SET_RESOLUTION);
-	data |= (st->resolution - 10) >> 1;
-	ret = ad2s1210_config_write(st, data);
-	if (ret < 0)
-		goto error_ret;
-	ret = ad2s1210_config_read(st, AD2S1210_REG_CONTROL);
-	if (ret < 0)
-		goto error_ret;
-
-	if (ret & AD2S1210_MSB_IS_HIGH) {
-		ret = -EIO;
-		goto error_ret;
-	}
-
-	ret = ad2s1210_update_frequency_control_word(st);
-	if (ret < 0)
-		goto error_ret;
-	ret = ad2s1210_soft_reset(st);
-error_ret:
-	mutex_unlock(&st->lock);
-	return ret;
-}
-
-static const struct iio_info ad2s1210_info = {
-	.read_raw = &ad2s1210_read_raw,
-	.attrs = &ad2s1210_attribute_group,
-	.driver_module = THIS_MODULE,
-};
-
-static int ad2s1210_setup_gpios(struct ad2s1210_state *st)
-{
-	unsigned long flags = st->pdata->gpioin ? GPIOF_DIR_IN : GPIOF_DIR_OUT;
-	struct gpio ad2s1210_gpios[] = {
-		{ st->pdata->sample, GPIOF_DIR_IN, "sample" },
-		{ st->pdata->a[0], flags, "a0" },
-		{ st->pdata->a[1], flags, "a1" },
-		{ st->pdata->res[0], flags, "res0" },
-		{ st->pdata->res[0], flags, "res1" },
-	};
-
-	return gpio_request_array(ad2s1210_gpios, ARRAY_SIZE(ad2s1210_gpios));
-}
-
-static void ad2s1210_free_gpios(struct ad2s1210_state *st)
-{
-	unsigned long flags = st->pdata->gpioin ? GPIOF_DIR_IN : GPIOF_DIR_OUT;
-	struct gpio ad2s1210_gpios[] = {
-		{ st->pdata->sample, GPIOF_DIR_IN, "sample" },
-		{ st->pdata->a[0], flags, "a0" },
-		{ st->pdata->a[1], flags, "a1" },
-		{ st->pdata->res[0], flags, "res0" },
-		{ st->pdata->res[0], flags, "res1" },
-	};
-
-	gpio_free_array(ad2s1210_gpios, ARRAY_SIZE(ad2s1210_gpios));
-}
-
-static int ad2s1210_probe(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev;
-	struct ad2s1210_state *st;
-	int ret;
-
-	if (spi->dev.platform_data == NULL)
-		return -EINVAL;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	st->pdata = spi->dev.platform_data;
-	ret = ad2s1210_setup_gpios(st);
-	if (ret < 0)
-		return ret;
-
-	spi_set_drvdata(spi, indio_dev);
-
-	mutex_init(&st->lock);
-	st->sdev = spi;
-	st->hysteresis = true;
-	st->mode = MOD_CONFIG;
-	st->resolution = 12;
-	st->fexcit = AD2S1210_DEF_EXCIT;
-
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &ad2s1210_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = ad2s1210_channels;
-	indio_dev->num_channels = ARRAY_SIZE(ad2s1210_channels);
-	indio_dev->name = spi_get_device_id(spi)->name;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		goto error_free_gpios;
-
-	st->fclkin = spi->max_speed_hz;
-	spi->mode = SPI_MODE_3;
-	spi_setup(spi);
-	ad2s1210_initial(st);
-
-	return 0;
-
-error_free_gpios:
-	ad2s1210_free_gpios(st);
-	return ret;
-}
-
-static int ad2s1210_remove(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev = spi_get_drvdata(spi);
-
-	iio_device_unregister(indio_dev);
-	ad2s1210_free_gpios(iio_priv(indio_dev));
-
-	return 0;
-}
-
-static const struct spi_device_id ad2s1210_id[] = {
-	{ "ad2s1210" },
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ad2s1210_id);
-
-static struct spi_driver ad2s1210_driver = {
-	.driver = {
-		.name = DRV_NAME,
-		.owner = THIS_MODULE,
-	},
-	.probe = ad2s1210_probe,
-	.remove = ad2s1210_remove,
-	.id_table = ad2s1210_id,
-};
-module_spi_driver(ad2s1210_driver);
-
-MODULE_AUTHOR("Graff Yang <graff.yang@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices AD2S1210 Resolver to Digital SPI driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/resolver/ad2s1210.h b/drivers/staging/iio/resolver/ad2s1210.h
deleted file mode 100644
index c7158f6e61c2..000000000000
--- a/drivers/staging/iio/resolver/ad2s1210.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * ad2s1210.h plaform data for the ADI Resolver to Digital Converters:
- * AD2S1210
- *
- * Copyright (c) 2010-2010 Analog Devices Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef _AD2S1210_H
-#define _AD2S1210_H
-
-struct ad2s1210_platform_data {
-	unsigned sample;
-	unsigned a[2];
-	unsigned res[2];
-	bool gpioin;
-};
-#endif /* _AD2S1210_H */
diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c
deleted file mode 100644
index e24c5890652f..000000000000
--- a/drivers/staging/iio/resolver/ad2s90.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * ad2s90.c simple support for the ADI Resolver to Digital Converters: AD2S90
- *
- * Copyright (c) 2010-2010 Analog Devices Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-#include <linux/types.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-struct ad2s90_state {
-	struct mutex lock;
-	struct spi_device *sdev;
-	u8 rx[2] ____cacheline_aligned;
-};
-
-static int ad2s90_read_raw(struct iio_dev *indio_dev,
-			   struct iio_chan_spec const *chan,
-			   int *val,
-			   int *val2,
-			   long m)
-{
-	int ret;
-	struct ad2s90_state *st = iio_priv(indio_dev);
-
-	mutex_lock(&st->lock);
-	ret = spi_read(st->sdev, st->rx, 2);
-	if (ret)
-		goto error_ret;
-	*val = (((u16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4);
-
-error_ret:
-	mutex_unlock(&st->lock);
-
-	return IIO_VAL_INT;
-}
-
-static const struct iio_info ad2s90_info = {
-	.read_raw = &ad2s90_read_raw,
-	.driver_module = THIS_MODULE,
-};
-
-static const struct iio_chan_spec ad2s90_chan = {
-	.type = IIO_ANGL,
-	.indexed = 1,
-	.channel = 0,
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-};
-
-static int ad2s90_probe(struct spi_device *spi)
-{
-	struct iio_dev *indio_dev;
-	struct ad2s90_state *st;
-	int ret = 0;
-
-	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-	if (!indio_dev)
-		return -ENOMEM;
-	st = iio_priv(indio_dev);
-	spi_set_drvdata(spi, indio_dev);
-
-	mutex_init(&st->lock);
-	st->sdev = spi;
-	indio_dev->dev.parent = &spi->dev;
-	indio_dev->info = &ad2s90_info;
-	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = &ad2s90_chan;
-	indio_dev->num_channels = 1;
-	indio_dev->name = spi_get_device_id(spi)->name;
-
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	/* need 600ns between CS and the first falling edge of SCLK */
-	spi->max_speed_hz = 830000;
-	spi->mode = SPI_MODE_3;
-	spi_setup(spi);
-
-	return 0;
-}
-
-static int ad2s90_remove(struct spi_device *spi)
-{
-	iio_device_unregister(spi_get_drvdata(spi));
-
-	return 0;
-}
-
-static const struct spi_device_id ad2s90_id[] = {
-	{ "ad2s90" },
-	{}
-};
-MODULE_DEVICE_TABLE(spi, ad2s90_id);
-
-static struct spi_driver ad2s90_driver = {
-	.driver = {
-		.name = "ad2s90",
-		.owner = THIS_MODULE,
-	},
-	.probe = ad2s90_probe,
-	.remove = ad2s90_remove,
-	.id_table = ad2s90_id,
-};
-module_spi_driver(ad2s90_driver);
-
-MODULE_AUTHOR("Graff Yang <graff.yang@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices AD2S90 Resolver to Digital SPI driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/ring_hw.h b/drivers/staging/iio/ring_hw.h
deleted file mode 100644
index 75bf47bfee78..000000000000
--- a/drivers/staging/iio/ring_hw.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * ring_hw.h - common functionality for iio hardware ring buffers
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * Copyright (c) 2009 Jonathan Cameron <jic23@kernel.org>
- *
- */
-
-#ifndef _RING_HW_H_
-#define _RING_HW_H_
-
-/**
- * struct iio_hw_ring_buffer- hardware ring buffer
- * @buf:	generic ring buffer elements
- * @private:	device specific data
- */
-struct iio_hw_buffer {
-	struct iio_buffer buf;
-	void *private;
-};
-
-#define iio_to_hw_buf(r) container_of(r, struct iio_hw_buffer, buf)
-
-#endif /* _RING_HW_H_ */
diff --git a/drivers/staging/iio/trigger/Kconfig b/drivers/staging/iio/trigger/Kconfig
deleted file mode 100644
index 710a2f3e787e..000000000000
--- a/drivers/staging/iio/trigger/Kconfig
+++ /dev/null
@@ -1,29 +0,0 @@
-  #
-# Industrial I/O standalone triggers
-#
-comment "Triggers - standalone"
-
-if IIO_TRIGGER
-
-config IIO_PERIODIC_RTC_TRIGGER
-	tristate "Periodic RTC triggers"
-	depends on RTC_CLASS
-	help
-	  Provides support for using periodic capable real time
-	  clocks as IIO triggers.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called iio-trig-periodic-rtc.
-
-config IIO_BFIN_TMR_TRIGGER
-	tristate "Blackfin TIMER trigger"
-	depends on BLACKFIN
-	select BFIN_GPTIMERS
-	help
-	  Provides support for using a Blackfin timer as IIO triggers.
-	  If unsure, say N (but it's safe to say "Y").
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called iio-trig-bfin-timer.
-
-endif # IIO_TRIGGER
diff --git a/drivers/staging/iio/trigger/Makefile b/drivers/staging/iio/trigger/Makefile
deleted file mode 100644
index 238481b78e72..000000000000
--- a/drivers/staging/iio/trigger/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-#
-# Makefile for triggers not associated with iio-devices
-#
-
-obj-$(CONFIG_IIO_PERIODIC_RTC_TRIGGER) += iio-trig-periodic-rtc.o
-obj-$(CONFIG_IIO_BFIN_TMR_TRIGGER) += iio-trig-bfin-timer.o
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
deleted file mode 100644
index 9fe48ef11473..000000000000
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-
-#include <asm/gptimers.h>
-#include <asm/portmux.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/trigger.h>
-
-#include "iio-trig-bfin-timer.h"
-
-struct bfin_timer {
-	unsigned short id, bit;
-	unsigned long irqbit;
-	int irq;
-	int pin;
-};
-
-/*
- * this covers all hardware timer configurations on
- * all Blackfin derivatives out there today
- */
-
-static struct bfin_timer iio_bfin_timer_code[MAX_BLACKFIN_GPTIMERS] = {
-	{TIMER0_id,  TIMER0bit,  TIMER_STATUS_TIMIL0,  IRQ_TIMER0, P_TMR0},
-	{TIMER1_id,  TIMER1bit,  TIMER_STATUS_TIMIL1,  IRQ_TIMER1, P_TMR1},
-	{TIMER2_id,  TIMER2bit,  TIMER_STATUS_TIMIL2,  IRQ_TIMER2, P_TMR2},
-#if (MAX_BLACKFIN_GPTIMERS > 3)
-	{TIMER3_id,  TIMER3bit,  TIMER_STATUS_TIMIL3,  IRQ_TIMER3, P_TMR3},
-	{TIMER4_id,  TIMER4bit,  TIMER_STATUS_TIMIL4,  IRQ_TIMER4, P_TMR4},
-	{TIMER5_id,  TIMER5bit,  TIMER_STATUS_TIMIL5,  IRQ_TIMER5, P_TMR5},
-	{TIMER6_id,  TIMER6bit,  TIMER_STATUS_TIMIL6,  IRQ_TIMER6, P_TMR6},
-	{TIMER7_id,  TIMER7bit,  TIMER_STATUS_TIMIL7,  IRQ_TIMER7, P_TMR7},
-#endif
-#if (MAX_BLACKFIN_GPTIMERS > 8)
-	{TIMER8_id,  TIMER8bit,  TIMER_STATUS_TIMIL8,  IRQ_TIMER8, P_TMR8},
-	{TIMER9_id,  TIMER9bit,  TIMER_STATUS_TIMIL9,  IRQ_TIMER9, P_TMR9},
-	{TIMER10_id, TIMER10bit, TIMER_STATUS_TIMIL10, IRQ_TIMER10, P_TMR10},
-#if (MAX_BLACKFIN_GPTIMERS > 11)
-	{TIMER11_id, TIMER11bit, TIMER_STATUS_TIMIL11, IRQ_TIMER11, P_TMR11},
-#endif
-#endif
-};
-
-struct bfin_tmr_state {
-	struct iio_trigger *trig;
-	struct bfin_timer *t;
-	unsigned timer_num;
-	bool output_enable;
-	unsigned int duty;
-	int irq;
-};
-
-static int iio_bfin_tmr_set_state(struct iio_trigger *trig, bool state)
-{
-	struct bfin_tmr_state *st = iio_trigger_get_drvdata(trig);
-
-	if (get_gptimer_period(st->t->id) == 0)
-		return -EINVAL;
-
-	if (state)
-		enable_gptimers(st->t->bit);
-	else
-		disable_gptimers(st->t->bit);
-
-	return 0;
-}
-
-static ssize_t iio_bfin_tmr_frequency_store(struct device *dev,
-					    struct device_attribute *attr,
-					    const char *buf, size_t count)
-{
-	struct iio_trigger *trig = to_iio_trigger(dev);
-	struct bfin_tmr_state *st = iio_trigger_get_drvdata(trig);
-	unsigned int val;
-	bool enabled;
-	int ret;
-
-	ret = kstrtouint(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	if (val > 100000)
-		return -EINVAL;
-
-	enabled = get_enabled_gptimers() & st->t->bit;
-
-	if (enabled)
-		disable_gptimers(st->t->bit);
-
-	if (val == 0)
-		return count;
-
-	val = get_sclk() / val;
-	if (val <= 4 || val <= st->duty)
-		return -EINVAL;
-
-	set_gptimer_period(st->t->id, val);
-	set_gptimer_pwidth(st->t->id, val - st->duty);
-
-	if (enabled)
-		enable_gptimers(st->t->bit);
-
-	return count;
-}
-
-static ssize_t iio_bfin_tmr_frequency_show(struct device *dev,
-					   struct device_attribute *attr,
-					   char *buf)
-{
-	struct iio_trigger *trig = to_iio_trigger(dev);
-	struct bfin_tmr_state *st = iio_trigger_get_drvdata(trig);
-	unsigned int period = get_gptimer_period(st->t->id);
-	unsigned long val;
-
-	if (period == 0)
-		val = 0;
-	else
-		val = get_sclk() / get_gptimer_period(st->t->id);
-
-	return sprintf(buf, "%lu\n", val);
-}
-
-static DEVICE_ATTR(frequency, S_IRUGO | S_IWUSR, iio_bfin_tmr_frequency_show,
-		   iio_bfin_tmr_frequency_store);
-
-static struct attribute *iio_bfin_tmr_trigger_attrs[] = {
-	&dev_attr_frequency.attr,
-	NULL,
-};
-
-static const struct attribute_group iio_bfin_tmr_trigger_attr_group = {
-	.attrs = iio_bfin_tmr_trigger_attrs,
-};
-
-static const struct attribute_group *iio_bfin_tmr_trigger_attr_groups[] = {
-	&iio_bfin_tmr_trigger_attr_group,
-	NULL
-};
-
-static irqreturn_t iio_bfin_tmr_trigger_isr(int irq, void *devid)
-{
-	struct bfin_tmr_state *st = devid;
-
-	clear_gptimer_intr(st->t->id);
-	iio_trigger_poll(st->trig);
-
-	return IRQ_HANDLED;
-}
-
-static int iio_bfin_tmr_get_number(int irq)
-{
-	int i;
-
-	for (i = 0; i < MAX_BLACKFIN_GPTIMERS; i++)
-		if (iio_bfin_timer_code[i].irq == irq)
-			return i;
-
-	return -ENODEV;
-}
-
-static const struct iio_trigger_ops iio_bfin_tmr_trigger_ops = {
-	.owner = THIS_MODULE,
-	.set_trigger_state = iio_bfin_tmr_set_state,
-};
-
-static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev)
-{
-	struct iio_bfin_timer_trigger_pdata *pdata = pdev->dev.platform_data;
-	struct bfin_tmr_state *st;
-	unsigned int config;
-	int ret;
-
-	st = devm_kzalloc(&pdev->dev, sizeof(*st), GFP_KERNEL);
-	if (!st)
-		return -ENOMEM;
-
-	st->irq = platform_get_irq(pdev, 0);
-	if (!st->irq) {
-		dev_err(&pdev->dev, "No IRQs specified");
-		return -ENODEV;
-	}
-
-	ret = iio_bfin_tmr_get_number(st->irq);
-	if (ret < 0)
-		return ret;
-
-	st->timer_num = ret;
-	st->t = &iio_bfin_timer_code[st->timer_num];
-
-	st->trig = iio_trigger_alloc("bfintmr%d", st->timer_num);
-	if (!st->trig)
-		return -ENOMEM;
-
-	st->trig->ops = &iio_bfin_tmr_trigger_ops;
-	st->trig->dev.groups = iio_bfin_tmr_trigger_attr_groups;
-	iio_trigger_set_drvdata(st->trig, st);
-	ret = iio_trigger_register(st->trig);
-	if (ret)
-		goto out;
-
-	ret = request_irq(st->irq, iio_bfin_tmr_trigger_isr,
-			  0, st->trig->name, st);
-	if (ret) {
-		dev_err(&pdev->dev,
-			"request IRQ-%d failed", st->irq);
-		goto out1;
-	}
-
-	config = PWM_OUT | PERIOD_CNT | IRQ_ENA;
-
-	if (pdata && pdata->output_enable) {
-		unsigned long long val;
-
-		st->output_enable = true;
-
-		ret = peripheral_request(st->t->pin, st->trig->name);
-		if (ret)
-			goto out_free_irq;
-
-		val = (unsigned long long)get_sclk() * pdata->duty_ns;
-		do_div(val, NSEC_PER_SEC);
-		st->duty = val;
-
-		/**
-		 * The interrupt will be generated at the end of the period,
-		 * since we want the interrupt to be generated at end of the
-		 * pulse we invert both polarity and duty cycle, so that the
-		 * pulse will be generated directly before the interrupt.
-		 */
-		if (pdata->active_low)
-			config |= PULSE_HI;
-	} else {
-		st->duty = 1;
-		config |= OUT_DIS;
-	}
-
-	set_gptimer_config(st->t->id, config);
-
-	dev_info(&pdev->dev, "iio trigger Blackfin TMR%d, IRQ-%d",
-		 st->timer_num, st->irq);
-	platform_set_drvdata(pdev, st);
-
-	return 0;
-out_free_irq:
-	free_irq(st->irq, st);
-out1:
-	iio_trigger_unregister(st->trig);
-out:
-	iio_trigger_put(st->trig);
-	return ret;
-}
-
-static int iio_bfin_tmr_trigger_remove(struct platform_device *pdev)
-{
-	struct bfin_tmr_state *st = platform_get_drvdata(pdev);
-
-	disable_gptimers(st->t->bit);
-	if (st->output_enable)
-		peripheral_free(st->t->pin);
-	free_irq(st->irq, st);
-	iio_trigger_unregister(st->trig);
-	iio_trigger_put(st->trig);
-
-	return 0;
-}
-
-static struct platform_driver iio_bfin_tmr_trigger_driver = {
-	.driver = {
-		.name = "iio_bfin_tmr_trigger",
-	},
-	.probe = iio_bfin_tmr_trigger_probe,
-	.remove = iio_bfin_tmr_trigger_remove,
-};
-
-module_platform_driver(iio_bfin_tmr_trigger_driver);
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Blackfin system timer based trigger for the iio subsystem");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:iio-trig-bfin-timer");
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.h b/drivers/staging/iio/trigger/iio-trig-bfin-timer.h
deleted file mode 100644
index c07321f8d94c..000000000000
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef __IIO_BFIN_TIMER_TRIGGER_H__
-#define __IIO_BFIN_TIMER_TRIGGER_H__
-
-/**
- * struct iio_bfin_timer_trigger_pdata - timer trigger platform data
- * @output_enable: Enable external trigger pulse generation.
- * @active_low: Whether the trigger pulse is active low.
- * @duty_ns: Length of the trigger pulse in nanoseconds.
- *
- * This struct is used to configure the output pulse generation of the blackfin
- * timer trigger. If output_enable is set to true an external trigger signal
- * will generated on the pin corresponding to the timer. This is useful for
- * converters which needs an external signal to start conversion. active_low and
- * duty_ns are used to configure the type of the trigger pulse. If output_enable
- * is set to false no external trigger pulse will be generated and active_low
- * and duty_ns are ignored.
- **/
-struct iio_bfin_timer_trigger_pdata {
-	bool output_enable;
-	bool active_low;
-	unsigned int duty_ns;
-};
-
-#endif
diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
deleted file mode 100644
index 2db885750fb8..000000000000
--- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
+++ /dev/null
@@ -1,216 +0,0 @@
-/* The industrial I/O periodic RTC trigger driver
- *
- * Copyright (c) 2008 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This is a heavily rewritten version of the periodic timer system in
- * earlier version of industrialio.  It supplies the same functionality
- * but via a trigger rather than a specific periodic timer system.
- */
-
-#include <linux/platform_device.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/rtc.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/trigger.h>
-
-static LIST_HEAD(iio_prtc_trigger_list);
-static DEFINE_MUTEX(iio_prtc_trigger_list_lock);
-
-struct iio_prtc_trigger_info {
-	struct rtc_device *rtc;
-	unsigned int frequency;
-	struct rtc_task task;
-	bool state;
-};
-
-static int iio_trig_periodic_rtc_set_state(struct iio_trigger *trig, bool state)
-{
-	struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig);
-	int ret;
-
-	if (trig_info->frequency == 0 && state)
-		return -EINVAL;
-	dev_dbg(&trig_info->rtc->dev, "trigger frequency is %u\n",
-		trig_info->frequency);
-	ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, state);
-	if (ret == 0)
-		trig_info->state = state;
-
-	return ret;
-}
-
-static ssize_t iio_trig_periodic_read_freq(struct device *dev,
-					   struct device_attribute *attr,
-					   char *buf)
-{
-	struct iio_trigger *trig = to_iio_trigger(dev);
-	struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig);
-
-	return sprintf(buf, "%u\n", trig_info->frequency);
-}
-
-static ssize_t iio_trig_periodic_write_freq(struct device *dev,
-					    struct device_attribute *attr,
-					    const char *buf,
-					    size_t len)
-{
-	struct iio_trigger *trig = to_iio_trigger(dev);
-	struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig);
-	unsigned int val;
-	int ret;
-
-	ret = kstrtouint(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-
-	if (val > 0) {
-		ret = rtc_irq_set_freq(trig_info->rtc, &trig_info->task, val);
-		if (ret == 0 && trig_info->state && trig_info->frequency == 0)
-			ret = rtc_irq_set_state(trig_info->rtc,
-						&trig_info->task, 1);
-	} else {
-		ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, 0);
-	}
-	if (ret)
-		goto error_ret;
-
-	trig_info->frequency = val;
-
-	return len;
-
-error_ret:
-	return ret;
-}
-
-static DEVICE_ATTR(frequency, S_IRUGO | S_IWUSR,
-	    iio_trig_periodic_read_freq,
-	    iio_trig_periodic_write_freq);
-
-static struct attribute *iio_trig_prtc_attrs[] = {
-	&dev_attr_frequency.attr,
-	NULL,
-};
-
-static const struct attribute_group iio_trig_prtc_attr_group = {
-	.attrs = iio_trig_prtc_attrs,
-};
-
-static const struct attribute_group *iio_trig_prtc_attr_groups[] = {
-	&iio_trig_prtc_attr_group,
-	NULL
-};
-
-static void iio_prtc_trigger_poll(void *private_data)
-{
-	iio_trigger_poll(private_data);
-}
-
-static const struct iio_trigger_ops iio_prtc_trigger_ops = {
-	.owner = THIS_MODULE,
-	.set_trigger_state = &iio_trig_periodic_rtc_set_state,
-};
-
-static int iio_trig_periodic_rtc_probe(struct platform_device *dev)
-{
-	char **pdata = dev->dev.platform_data;
-	struct iio_prtc_trigger_info *trig_info;
-	struct iio_trigger *trig, *trig2;
-
-	int i, ret;
-
-	for (i = 0;; i++) {
-		if (!pdata[i])
-			break;
-		trig = iio_trigger_alloc("periodic%s", pdata[i]);
-		if (!trig) {
-			ret = -ENOMEM;
-			goto error_free_completed_registrations;
-		}
-		list_add(&trig->alloc_list, &iio_prtc_trigger_list);
-
-		trig_info = kzalloc(sizeof(*trig_info), GFP_KERNEL);
-		if (!trig_info) {
-			ret = -ENOMEM;
-			goto error_put_trigger_and_remove_from_list;
-		}
-		iio_trigger_set_drvdata(trig, trig_info);
-		trig->ops = &iio_prtc_trigger_ops;
-		/* RTC access */
-		trig_info->rtc = rtc_class_open(pdata[i]);
-		if (!trig_info->rtc) {
-			ret = -EINVAL;
-			goto error_free_trig_info;
-		}
-		trig_info->task.func = iio_prtc_trigger_poll;
-		trig_info->task.private_data = trig;
-		ret = rtc_irq_register(trig_info->rtc, &trig_info->task);
-		if (ret)
-			goto error_close_rtc;
-		trig->dev.groups = iio_trig_prtc_attr_groups;
-		ret = iio_trigger_register(trig);
-		if (ret)
-			goto error_unregister_rtc_irq;
-	}
-	return 0;
-error_unregister_rtc_irq:
-	rtc_irq_unregister(trig_info->rtc, &trig_info->task);
-error_close_rtc:
-	rtc_class_close(trig_info->rtc);
-error_free_trig_info:
-	kfree(trig_info);
-error_put_trigger_and_remove_from_list:
-	list_del(&trig->alloc_list);
-	iio_trigger_put(trig);
-error_free_completed_registrations:
-	list_for_each_entry_safe(trig,
-				 trig2,
-				 &iio_prtc_trigger_list,
-				 alloc_list) {
-		trig_info = iio_trigger_get_drvdata(trig);
-		rtc_irq_unregister(trig_info->rtc, &trig_info->task);
-		rtc_class_close(trig_info->rtc);
-		kfree(trig_info);
-		iio_trigger_unregister(trig);
-	}
-	return ret;
-}
-
-static int iio_trig_periodic_rtc_remove(struct platform_device *dev)
-{
-	struct iio_trigger *trig, *trig2;
-	struct iio_prtc_trigger_info *trig_info;
-
-	mutex_lock(&iio_prtc_trigger_list_lock);
-	list_for_each_entry_safe(trig,
-				 trig2,
-				 &iio_prtc_trigger_list,
-				 alloc_list) {
-		trig_info = iio_trigger_get_drvdata(trig);
-		rtc_irq_unregister(trig_info->rtc, &trig_info->task);
-		rtc_class_close(trig_info->rtc);
-		kfree(trig_info);
-		iio_trigger_unregister(trig);
-	}
-	mutex_unlock(&iio_prtc_trigger_list_lock);
-	return 0;
-}
-
-static struct platform_driver iio_trig_periodic_rtc_driver = {
-	.probe = iio_trig_periodic_rtc_probe,
-	.remove = iio_trig_periodic_rtc_remove,
-	.driver = {
-		.name = "iio_prtc_trigger",
-	},
-};
-
-module_platform_driver(iio_trig_periodic_rtc_driver);
-
-MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
-MODULE_DESCRIPTION("Periodic realtime clock trigger for the iio subsystem");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/lustre/Kconfig b/drivers/staging/lustre/Kconfig
deleted file mode 100644
index a224d88bf43d..000000000000
--- a/drivers/staging/lustre/Kconfig
+++ /dev/null
@@ -1,3 +0,0 @@
-source "drivers/staging/lustre/lustre/Kconfig"
-
-source "drivers/staging/lustre/lnet/Kconfig"
diff --git a/drivers/staging/lustre/Makefile b/drivers/staging/lustre/Makefile
deleted file mode 100644
index 95ffe337a80a..000000000000
--- a/drivers/staging/lustre/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LNET)		+= lnet/
-obj-$(CONFIG_LUSTRE_FS)		+= lustre/
diff --git a/drivers/staging/lustre/README.txt b/drivers/staging/lustre/README.txt
deleted file mode 100644
index cf0ca50ff83b..000000000000
--- a/drivers/staging/lustre/README.txt
+++ /dev/null
@@ -1,87 +0,0 @@
-Lustre Parallel Filesystem Client
-=================================
-
-The Lustre file system is an open-source, parallel file system
-that supports many requirements of leadership class HPC simulation
-environments.
-Born from from a research project at Carnegie Mellon University,
-the Lustre file system is a widely-used option in HPC.
-The Lustre file system provides a POSIX compliant file system interface,
-can scale to thousands of clients, petabytes of storage and
-hundreds of gigabytes per second of I/O bandwidth.
-
-Unlike shared disk storage cluster filesystems (e.g. OCFS2, GFS, GPFS),
-Lustre has independent Metadata and Data servers that clients can access
-in parallel to maximize performance.
-
-In order to use Lustre client you will need to download lustre client
-tools from
-https://downloads.hpdd.intel.com/public/lustre/latest-feature-release/
-the package name is lustre-client.
-
-You will need to install and configure your Lustre servers separately.
-
-Mount Syntax
-============
-After you installed the lustre-client tools including mount.lustre binary
-you can mount your Lustre filesystem with:
-
-mount -t lustre mgs:/fsname mnt
-
-where mgs is the host name or ip address of your Lustre MGS(management service)
-fsname is the name of the filesystem you would like to mount.
-
-
-Mount Options
-=============
-
-  noflock
-	Disable posix file locking (Applications trying to use
-	the functionality will get ENOSYS)
-
-  localflock
-	Enable local flock support, using only client-local flock
-	(faster, for applications that require flock but do not run
-	 on multiple nodes).
-
-  flock
-	Enable cluster-global posix file locking coherent across all
-	client nodes.
-
-  user_xattr, nouser_xattr
-	Support "user." extended attributes (or not)
-
-  user_fid2path, nouser_fid2path
-	Enable FID to path translation by regular users (or not)
-
-  checksum, nochecksum
-	Verify data consistency on the wire and in memory as it passes
-	between the layers (or not).
-
-  lruresize, nolruresize
-	Allow lock LRU to be controlled by memory pressure on the server
-	(or only 100 (default, controlled by lru_size proc parameter) locks
-	 per CPU per server on this client).
-
-  lazystatfs, nolazystatfs
-	Do not block in statfs() if some of the servers are down.
-
-  32bitapi
-	Shrink inode numbers to fit into 32 bits. This is necessary
-	if you plan to reexport Lustre filesystem from this client via
-	NFSv4.
-
-  verbose, noverbose
-	Enable mount/umount console messages (or not)
-
-More Information
-================
-You can get more information at
-OpenSFS website: http://lustre.opensfs.org/about/
-Intel HPDD wiki: https://wiki.hpdd.intel.com
-
-Out of tree Lustre client and server code is available at:
-http://git.whamcloud.com/fs/lustre-release.git
-
-Latest binary packages:
-http://lustre.opensfs.org/download-lustre/
diff --git a/drivers/staging/lustre/TODO b/drivers/staging/lustre/TODO
deleted file mode 100644
index f194417d0af7..000000000000
--- a/drivers/staging/lustre/TODO
+++ /dev/null
@@ -1,12 +0,0 @@
-* Possible remaining coding style fix.
-* Remove deadcode.
-* Separate client/server functionality. Functions only used by server can be
-  removed from client.
-* Clean up libcfs layer. Ideally we can remove include/linux/libcfs entirely.
-* Clean up CLIO layer. Lustre client readahead/writeback control needs to better
-  suit kernel providings.
-* Add documents in Documentation.
-* Other minor misc cleanups...
-
-Please send any patches to Greg Kroah-Hartman <greg@kroah.com>, Andreas Dilger
-<andreas.dilger@intel.com>, and Oleg Drokin <oleg.drokin@intel.com>.
diff --git a/drivers/staging/lustre/include/linux/libcfs/curproc.h b/drivers/staging/lustre/include/linux/libcfs/curproc.h
deleted file mode 100644
index 1edfca58c1c6..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/curproc.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/curproc.h
- *
- * Lustre curproc API declaration
- *
- * Author: Nikita Danilov <nikita@clusterfs.com>
- */
-
-#ifndef __LIBCFS_CURPROC_H__
-#define __LIBCFS_CURPROC_H__
-
-/*
- * Plus, platform-specific constant
- *
- * CFS_CURPROC_COMM_MAX,
- *
- * and opaque scalar type
- *
- * kernel_cap_t
- */
-
-/* check if task is running in compat mode.*/
-#define current_pid()		(current->pid)
-#define current_comm()		(current->comm)
-
-typedef __u32 cfs_cap_t;
-
-#define CFS_CAP_CHOWN		   0
-#define CFS_CAP_DAC_OVERRIDE	    1
-#define CFS_CAP_DAC_READ_SEARCH	 2
-#define CFS_CAP_FOWNER		  3
-#define CFS_CAP_FSETID		  4
-#define CFS_CAP_LINUX_IMMUTABLE	 9
-#define CFS_CAP_SYS_ADMIN	      21
-#define CFS_CAP_SYS_BOOT	       23
-#define CFS_CAP_SYS_RESOURCE	   24
-
-#define CFS_CAP_FS_MASK ((1 << CFS_CAP_CHOWN) |		 \
-			 (1 << CFS_CAP_DAC_OVERRIDE) |	  \
-			 (1 << CFS_CAP_DAC_READ_SEARCH) |       \
-			 (1 << CFS_CAP_FOWNER) |		\
-			 (1 << CFS_CAP_FSETID) |	       \
-			 (1 << CFS_CAP_LINUX_IMMUTABLE) |       \
-			 (1 << CFS_CAP_SYS_ADMIN) |	     \
-			 (1 << CFS_CAP_SYS_BOOT) |	      \
-			 (1 << CFS_CAP_SYS_RESOURCE))
-
-void cfs_cap_raise(cfs_cap_t cap);
-void cfs_cap_lower(cfs_cap_t cap);
-int cfs_cap_raised(cfs_cap_t cap);
-cfs_cap_t cfs_curproc_cap_pack(void);
-
-/* __LIBCFS_CURPROC_H__ */
-#endif
-/*
- * Local variables:
- * c-indentation-style: "K&R"
- * c-basic-offset: 8
- * tab-width: 8
- * fill-column: 80
- * scroll-step: 1
- * End:
- */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
deleted file mode 100644
index 01961d9e6c36..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LIBCFS_LIBCFS_H__
-#define __LIBCFS_LIBCFS_H__
-
-#include "linux/libcfs.h"
-#include <linux/gfp.h>
-
-#include "curproc.h"
-
-static inline int __is_po2(unsigned long long val)
-{
-	return !(val & (val - 1));
-}
-
-#define IS_PO2(val) __is_po2((unsigned long long)(val))
-
-#define LOWEST_BIT_SET(x)       ((x) & ~((x) - 1))
-
-/*
- * Lustre Error Checksum: calculates checksum
- * of Hex number by XORing each bit.
- */
-#define LERRCHKSUM(hexnum) (((hexnum) & 0xf) ^ ((hexnum) >> 4 & 0xf) ^ \
-			   ((hexnum) >> 8 & 0xf))
-
-#define LUSTRE_SRV_LNET_PID      LUSTRE_LNET_PID
-
-#include <linux/list.h>
-
-int libcfs_arch_init(void);
-void libcfs_arch_cleanup(void);
-
-/* need both kernel and user-land acceptor */
-#define LNET_ACCEPTOR_MIN_RESERVED_PORT    512
-#define LNET_ACCEPTOR_MAX_RESERVED_PORT    1023
-
-/*
- * libcfs pseudo device operations
- *
- * It's just draft now.
- */
-
-struct cfs_psdev_file {
-	unsigned long   off;
-	void	    *private_data;
-	unsigned long   reserved1;
-	unsigned long   reserved2;
-};
-
-struct cfs_psdev_ops {
-	int (*p_open)(unsigned long, void *);
-	int (*p_close)(unsigned long, void *);
-	int (*p_read)(struct cfs_psdev_file *, char *, unsigned long);
-	int (*p_write)(struct cfs_psdev_file *, char *, unsigned long);
-	int (*p_ioctl)(struct cfs_psdev_file *, unsigned long, void *);
-};
-
-/*
- * Drop into debugger, if possible. Implementation is provided by platform.
- */
-
-void cfs_enter_debugger(void);
-
-/*
- * Defined by platform
- */
-int unshare_fs_struct(void);
-sigset_t cfs_get_blocked_sigs(void);
-sigset_t cfs_block_allsigs(void);
-sigset_t cfs_block_sigs(unsigned long sigs);
-sigset_t cfs_block_sigsinv(unsigned long sigs);
-void cfs_restore_sigs(sigset_t);
-int cfs_signal_pending(void);
-void cfs_clear_sigpending(void);
-
-/*
- * Random number handling
- */
-
-/* returns a random 32-bit integer */
-unsigned int cfs_rand(void);
-/* seed the generator */
-void cfs_srand(unsigned int, unsigned int);
-void cfs_get_random_bytes(void *buf, int size);
-
-#include "libcfs_debug.h"
-#include "libcfs_cpu.h"
-#include "libcfs_private.h"
-#include "libcfs_ioctl.h"
-#include "libcfs_prim.h"
-#include "libcfs_time.h"
-#include "libcfs_string.h"
-#include "libcfs_kernelcomm.h"
-#include "libcfs_workitem.h"
-#include "libcfs_hash.h"
-#include "libcfs_fail.h"
-#include "libcfs_crypto.h"
-
-/* container_of depends on "likely" which is defined in libcfs_private.h */
-static inline void *__container_of(void *ptr, unsigned long shift)
-{
-	if (IS_ERR_OR_NULL(ptr))
-		return ptr;
-	return (char *)ptr - shift;
-}
-
-#define container_of0(ptr, type, member) \
-	((type *)__container_of((void *)(ptr), offsetof(type, member)))
-
-#define _LIBCFS_H
-
-void *libcfs_kvzalloc(size_t size, gfp_t flags);
-void *libcfs_kvzalloc_cpt(struct cfs_cpt_table *cptab, int cpt, size_t size,
-			  gfp_t flags);
-
-extern struct miscdevice libcfs_dev;
-/**
- * The path of debug log dump upcall script.
- */
-extern char lnet_upcall[1024];
-extern char lnet_debug_log_upcall[1024];
-
-extern void libcfs_init_nidstrings(void);
-
-extern struct cfs_psdev_ops libcfs_psdev_ops;
-
-extern struct cfs_wi_sched *cfs_sched_rehash;
-
-#endif /* _LIBCFS_H */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
deleted file mode 100644
index 787867847483..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_cpu.h
- *
- * CPU partition
- *   . CPU partition is virtual processing unit
- *
- *   . CPU partition can present 1-N cores, or 1-N NUMA nodes,
- *     in other words, CPU partition is a processors pool.
- *
- * CPU Partition Table (CPT)
- *   . a set of CPU partitions
- *
- *   . There are two modes for CPT: CFS_CPU_MODE_NUMA and CFS_CPU_MODE_SMP
- *
- *   . User can specify total number of CPU partitions while creating a
- *     CPT, ID of CPU partition is always start from 0.
- *
- *     Example: if there are 8 cores on the system, while creating a CPT
- *     with cpu_npartitions=4:
- *	      core[0, 1] = partition[0], core[2, 3] = partition[1]
- *	      core[4, 5] = partition[2], core[6, 7] = partition[3]
- *
- *	  cpu_npartitions=1:
- *	      core[0, 1, ... 7] = partition[0]
- *
- *   . User can also specify CPU partitions by string pattern
- *
- *     Examples: cpu_partitions="0[0,1], 1[2,3]"
- *	       cpu_partitions="N 0[0-3], 1[4-8]"
- *
- *     The first character "N" means following numbers are numa ID
- *
- *   . NUMA allocators, CPU affinity threads are built over CPU partitions,
- *     instead of HW CPUs or HW nodes.
- *
- *   . By default, Lustre modules should refer to the global cfs_cpt_table,
- *     instead of accessing HW CPUs directly, so concurrency of Lustre can be
- *     configured by cpu_npartitions of the global cfs_cpt_table
- *
- *   . If cpu_npartitions=1(all CPUs in one pool), lustre should work the
- *     same way as 2.2 or earlier versions
- *
- * Author: liang@whamcloud.com
- */
-
-#ifndef __LIBCFS_CPU_H__
-#define __LIBCFS_CPU_H__
-
-/* any CPU partition */
-#define CFS_CPT_ANY		(-1)
-
-#ifdef CONFIG_SMP
-/**
- * return cpumask of CPU partition \a cpt
- */
-cpumask_t *cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt);
-/**
- * print string information of cpt-table
- */
-int cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len);
-#else /* !CONFIG_SMP */
-struct cfs_cpt_table {
-	/* # of CPU partitions */
-	int			ctb_nparts;
-	/* cpu mask */
-	cpumask_t		ctb_mask;
-	/* node mask */
-	nodemask_t		ctb_nodemask;
-	/* version */
-	__u64			ctb_version;
-};
-
-static inline cpumask_t *
-cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt)
-{
-	return NULL;
-}
-
-static inline int
-cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len)
-{
-	return 0;
-}
-#endif /* CONFIG_SMP */
-
-extern struct cfs_cpt_table	*cfs_cpt_table;
-
-/**
- * destroy a CPU partition table
- */
-void cfs_cpt_table_free(struct cfs_cpt_table *cptab);
-/**
- * create a cfs_cpt_table with \a ncpt number of partitions
- */
-struct cfs_cpt_table *cfs_cpt_table_alloc(unsigned int ncpt);
-/**
- * return total number of CPU partitions in \a cptab
- */
-int
-cfs_cpt_number(struct cfs_cpt_table *cptab);
-/**
- * return number of HW cores or hyper-threadings in a CPU partition \a cpt
- */
-int cfs_cpt_weight(struct cfs_cpt_table *cptab, int cpt);
-/**
- * is there any online CPU in CPU partition \a cpt
- */
-int cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt);
-/**
- * return nodemask of CPU partition \a cpt
- */
-nodemask_t *cfs_cpt_nodemask(struct cfs_cpt_table *cptab, int cpt);
-/**
- * shadow current HW processor ID to CPU-partition ID of \a cptab
- */
-int cfs_cpt_current(struct cfs_cpt_table *cptab, int remap);
-/**
- * shadow HW processor ID \a CPU to CPU-partition ID by \a cptab
- */
-int cfs_cpt_of_cpu(struct cfs_cpt_table *cptab, int cpu);
-/**
- * bind current thread on a CPU-partition \a cpt of \a cptab
- */
-int cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt);
-/**
- * add \a cpu to CPU partition @cpt of \a cptab, return 1 for success,
- * otherwise 0 is returned
- */
-int cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu);
-/**
- * remove \a cpu from CPU partition \a cpt of \a cptab
- */
-void cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu);
-/**
- * add all cpus in \a mask to CPU partition \a cpt
- * return 1 if successfully set all CPUs, otherwise return 0
- */
-int cfs_cpt_set_cpumask(struct cfs_cpt_table *cptab,
-			int cpt, cpumask_t *mask);
-/**
- * remove all cpus in \a mask from CPU partition \a cpt
- */
-void cfs_cpt_unset_cpumask(struct cfs_cpt_table *cptab,
-			   int cpt, cpumask_t *mask);
-/**
- * add all cpus in NUMA node \a node to CPU partition \a cpt
- * return 1 if successfully set all CPUs, otherwise return 0
- */
-int cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node);
-/**
- * remove all cpus in NUMA node \a node from CPU partition \a cpt
- */
-void cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node);
-
-/**
- * add all cpus in node mask \a mask to CPU partition \a cpt
- * return 1 if successfully set all CPUs, otherwise return 0
- */
-int cfs_cpt_set_nodemask(struct cfs_cpt_table *cptab,
-			 int cpt, nodemask_t *mask);
-/**
- * remove all cpus in node mask \a mask from CPU partition \a cpt
- */
-void cfs_cpt_unset_nodemask(struct cfs_cpt_table *cptab,
-			    int cpt, nodemask_t *mask);
-/**
- * unset all cpus for CPU partition \a cpt
- */
-void cfs_cpt_clear(struct cfs_cpt_table *cptab, int cpt);
-/**
- * convert partition id \a cpt to numa node id, if there are more than one
- * nodes in this partition, it might return a different node id each time.
- */
-int cfs_cpt_spread_node(struct cfs_cpt_table *cptab, int cpt);
-
-/**
- * return number of HTs in the same core of \a cpu
- */
-int cfs_cpu_ht_nsiblings(int cpu);
-
-/**
- * iterate over all CPU partitions in \a cptab
- */
-#define cfs_cpt_for_each(i, cptab)	\
-	for (i = 0; i < cfs_cpt_number(cptab); i++)
-
-int  cfs_cpu_init(void);
-void cfs_cpu_fini(void);
-
-#endif /* __LIBCFS_CPU_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
deleted file mode 100644
index e8663697e7a6..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
+++ /dev/null
@@ -1,199 +0,0 @@
-/* GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see http://www.gnu.org/licenses
- *
- * Please  visit http://www.xyratex.com/contact if you need additional
- * information or have any questions.
- *
- * GPL HEADER END
- */
-
-/*
- * Copyright 2012 Xyratex Technology Limited
- */
-
-#ifndef _LIBCFS_CRYPTO_H
-#define _LIBCFS_CRYPTO_H
-
-struct cfs_crypto_hash_type {
-	char		*cht_name;      /**< hash algorithm name, equal to
-					 * format name for crypto api */
-	unsigned int    cht_key;	/**< init key by default (valid for
-					 * 4 bytes context like crc32, adler */
-	unsigned int    cht_size;       /**< hash digest size */
-};
-
-enum cfs_crypto_hash_alg {
-	CFS_HASH_ALG_NULL       = 0,
-	CFS_HASH_ALG_ADLER32,
-	CFS_HASH_ALG_CRC32,
-	CFS_HASH_ALG_MD5,
-	CFS_HASH_ALG_SHA1,
-	CFS_HASH_ALG_SHA256,
-	CFS_HASH_ALG_SHA384,
-	CFS_HASH_ALG_SHA512,
-	CFS_HASH_ALG_CRC32C,
-	CFS_HASH_ALG_MAX
-};
-
-static struct cfs_crypto_hash_type hash_types[] = {
-	[CFS_HASH_ALG_NULL]    = { "null",     0,      0 },
-	[CFS_HASH_ALG_ADLER32] = { "adler32",  1,      4 },
-	[CFS_HASH_ALG_CRC32]   = { "crc32",   ~0,      4 },
-	[CFS_HASH_ALG_CRC32C]  = { "crc32c",  ~0,      4 },
-	[CFS_HASH_ALG_MD5]     = { "md5",      0,     16 },
-	[CFS_HASH_ALG_SHA1]    = { "sha1",     0,     20 },
-	[CFS_HASH_ALG_SHA256]  = { "sha256",   0,     32 },
-	[CFS_HASH_ALG_SHA384]  = { "sha384",   0,     48 },
-	[CFS_HASH_ALG_SHA512]  = { "sha512",   0,     64 },
-};
-
-/**    Return pointer to type of hash for valid hash algorithm identifier */
-static inline const struct cfs_crypto_hash_type *
-		    cfs_crypto_hash_type(unsigned char hash_alg)
-{
-	struct cfs_crypto_hash_type *ht;
-
-	if (hash_alg < CFS_HASH_ALG_MAX) {
-		ht = &hash_types[hash_alg];
-		if (ht->cht_name)
-			return ht;
-	}
-	return NULL;
-}
-
-/**     Return hash name for valid hash algorithm identifier or "unknown" */
-static inline const char *cfs_crypto_hash_name(unsigned char hash_alg)
-{
-	const struct cfs_crypto_hash_type *ht;
-
-	ht = cfs_crypto_hash_type(hash_alg);
-	if (ht)
-		return ht->cht_name;
-	return "unknown";
-}
-
-/**     Return digest size for valid algorithm identifier or 0 */
-static inline int cfs_crypto_hash_digestsize(unsigned char hash_alg)
-{
-	const struct cfs_crypto_hash_type *ht;
-
-	ht = cfs_crypto_hash_type(hash_alg);
-	if (ht)
-		return ht->cht_size;
-	return 0;
-}
-
-/**     Return hash identifier for valid hash algorithm name or 0xFF */
-static inline unsigned char cfs_crypto_hash_alg(const char *algname)
-{
-	unsigned char   i;
-
-	for (i = 0; i < CFS_HASH_ALG_MAX; i++)
-		if (!strcmp(hash_types[i].cht_name, algname))
-			break;
-	return (i == CFS_HASH_ALG_MAX ? 0xFF : i);
-}
-
-/**     Calculate hash digest for buffer.
- *      @param alg	    id of hash algorithm
- *      @param buf	    buffer of data
- *      @param buf_len	buffer len
- *      @param key	    initial value for algorithm, if it is NULL,
- *			    default initial value should be used.
- *      @param key_len	len of initial value
- *      @param hash	   [out] pointer to hash, if it is NULL, hash_len is
- *			    set to valid digest size in bytes, retval -ENOSPC.
- *      @param hash_len       [in,out] size of hash buffer
- *      @returns	      status of operation
- *      @retval -EINVAL       if buf, buf_len, hash_len or alg_id is invalid
- *      @retval -ENODEV       if this algorithm is unsupported
- *      @retval -ENOSPC       if pointer to hash is NULL, or hash_len less than
- *			    digest size
- *      @retval 0	     for success
- *      @retval < 0	   other errors from lower layers.
- */
-int cfs_crypto_hash_digest(unsigned char alg,
-			   const void *buf, unsigned int buf_len,
-			   unsigned char *key, unsigned int key_len,
-			   unsigned char *hash, unsigned int *hash_len);
-
-/* cfs crypto hash descriptor */
-struct cfs_crypto_hash_desc;
-
-/**     Allocate and initialize descriptor for hash algorithm.
- *      @param alg	    algorithm id
- *      @param key	    initial value for algorithm, if it is NULL,
- *			    default initial value should be used.
- *      @param key_len	len of initial value
- *      @returns	      pointer to descriptor of hash instance
- *      @retval ERR_PTR(error) when errors occurred.
- */
-struct cfs_crypto_hash_desc*
-	cfs_crypto_hash_init(unsigned char alg,
-			     unsigned char *key, unsigned int key_len);
-
-/**    Update digest by part of data.
- *     @param desc	      hash descriptor
- *     @param page	      data page
- *     @param offset	    data offset
- *     @param len	       data len
- *     @returns		 status of operation
- *     @retval 0		for success.
- */
-int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *desc,
-				struct page *page, unsigned int offset,
-				unsigned int len);
-
-/**    Update digest by part of data.
- *     @param desc	      hash descriptor
- *     @param buf	       pointer to data buffer
- *     @param buf_len	   size of data at buffer
- *     @returns		 status of operation
- *     @retval 0		for success.
- */
-int cfs_crypto_hash_update(struct cfs_crypto_hash_desc *desc, const void *buf,
-			   unsigned int buf_len);
-
-/**    Finalize hash calculation, copy hash digest to buffer, destroy hash
- *     descriptor.
- *     @param desc	      hash descriptor
- *     @param hash	      buffer pointer to store hash digest
- *     @param hash_len	  pointer to hash buffer size, if NULL
- *			      destroy hash descriptor
- *     @returns		 status of operation
- *     @retval -ENOSPC	  if hash is NULL, or *hash_len less than
- *			      digest size
- *     @retval 0		for success
- *     @retval < 0	      other errors from lower layers.
- */
-int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *desc,
-			  unsigned char *hash, unsigned int *hash_len);
-/**
- *      Register crypto hash algorithms
- */
-int cfs_crypto_register(void);
-
-/**
- *      Unregister
- */
-void cfs_crypto_unregister(void);
-
-/**     Return hash speed in Mbytes per second for valid hash algorithm
- *      identifier. If test was unsuccessful -1 would be returned.
- */
-int cfs_crypto_hash_speed(unsigned char hash_alg);
-#endif
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
deleted file mode 100644
index a3aa644154e2..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_debug.h
- *
- * Debug messages and assertions
- *
- */
-
-#ifndef __LIBCFS_DEBUG_H__
-#define __LIBCFS_DEBUG_H__
-
-/*
- *  Debugging
- */
-extern unsigned int libcfs_subsystem_debug;
-extern unsigned int libcfs_stack;
-extern unsigned int libcfs_debug;
-extern unsigned int libcfs_printk;
-extern unsigned int libcfs_console_ratelimit;
-extern unsigned int libcfs_console_max_delay;
-extern unsigned int libcfs_console_min_delay;
-extern unsigned int libcfs_console_backoff;
-extern unsigned int libcfs_debug_binary;
-extern char libcfs_debug_file_path_arr[PATH_MAX];
-
-int libcfs_debug_mask2str(char *str, int size, int mask, int is_subsys);
-int libcfs_debug_str2mask(int *mask, const char *str, int is_subsys);
-
-/* Has there been an LBUG? */
-extern unsigned int libcfs_catastrophe;
-extern unsigned int libcfs_panic_on_lbug;
-
-/**
- * Format for debug message headers
- */
-struct ptldebug_header {
-	__u32 ph_len;
-	__u32 ph_flags;
-	__u32 ph_subsys;
-	__u32 ph_mask;
-	__u16 ph_cpu_id;
-	__u16 ph_type;
-	__u32 ph_sec;
-	__u64 ph_usec;
-	__u32 ph_stack;
-	__u32 ph_pid;
-	__u32 ph_extern_pid;
-	__u32 ph_line_num;
-} __packed;
-
-#define PH_FLAG_FIRST_RECORD 1
-
-/* Debugging subsystems (32 bits, non-overlapping) */
-/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */
-#define S_UNDEFINED	0x00000001
-#define S_MDC		0x00000002
-#define S_MDS		0x00000004
-#define S_OSC		0x00000008
-#define S_OST		0x00000010
-#define S_CLASS		0x00000020
-#define S_LOG		0x00000040
-#define S_LLITE		0x00000080
-#define S_RPC		0x00000100
-#define S_MGMT		0x00000200
-#define S_LNET		0x00000400
-#define S_LND		0x00000800 /* ALL LNDs */
-#define S_PINGER	0x00001000
-#define S_FILTER	0x00002000
-/* unused */
-#define S_ECHO		0x00008000
-#define S_LDLM		0x00010000
-#define S_LOV		0x00020000
-#define S_LQUOTA	0x00040000
-#define S_OSD		0x00080000
-/* unused */
-/* unused */
-/* unused */
-#define S_LMV		0x00800000 /* b_new_cmd */
-/* unused */
-#define S_SEC		0x02000000 /* upcall cache */
-#define S_GSS		0x04000000 /* b_new_cmd */
-/* unused */
-#define S_MGC		0x10000000
-#define S_MGS		0x20000000
-#define S_FID		0x40000000 /* b_new_cmd */
-#define S_FLD		0x80000000 /* b_new_cmd */
-/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */
-
-/* Debugging masks (32 bits, non-overlapping) */
-/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */
-#define D_TRACE		0x00000001 /* ENTRY/EXIT markers */
-#define D_INODE		0x00000002
-#define D_SUPER		0x00000004
-#define D_EXT2		0x00000008 /* anything from ext2_debug */
-#define D_MALLOC	0x00000010 /* print malloc, free information */
-#define D_CACHE		0x00000020 /* cache-related items */
-#define D_INFO		0x00000040 /* general information */
-#define D_IOCTL		0x00000080 /* ioctl related information */
-#define D_NETERROR	0x00000100 /* network errors */
-#define D_NET		0x00000200 /* network communications */
-#define D_WARNING	0x00000400 /* CWARN(...) == CDEBUG (D_WARNING, ...) */
-#define D_BUFFS		0x00000800
-#define D_OTHER		0x00001000
-#define D_DENTRY	0x00002000
-#define D_NETTRACE	0x00004000
-#define D_PAGE		0x00008000 /* bulk page handling */
-#define D_DLMTRACE	0x00010000
-#define D_ERROR		0x00020000 /* CERROR(...) == CDEBUG (D_ERROR, ...) */
-#define D_EMERG		0x00040000 /* CEMERG(...) == CDEBUG (D_EMERG, ...) */
-#define D_HA		0x00080000 /* recovery and failover */
-#define D_RPCTRACE	0x00100000 /* for distributed debugging */
-#define D_VFSTRACE	0x00200000
-#define D_READA		0x00400000 /* read-ahead */
-#define D_MMAP		0x00800000
-#define D_CONFIG	0x01000000
-#define D_CONSOLE	0x02000000
-#define D_QUOTA		0x04000000
-#define D_SEC		0x08000000
-#define D_LFSCK		0x10000000 /* For both OI scrub and LFSCK */
-/* keep these in sync with lnet/{utils,libcfs}/debug.c */
-
-#define D_HSM	 D_TRACE
-
-#define D_CANTMASK   (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE)
-
-#ifndef DEBUG_SUBSYSTEM
-# define DEBUG_SUBSYSTEM S_UNDEFINED
-#endif
-
-#define CDEBUG_DEFAULT_MAX_DELAY (cfs_time_seconds(600))	 /* jiffies */
-#define CDEBUG_DEFAULT_MIN_DELAY ((cfs_time_seconds(1) + 1) / 2) /* jiffies */
-#define CDEBUG_DEFAULT_BACKOFF   2
-struct cfs_debug_limit_state {
-	unsigned long   cdls_next;
-	unsigned int cdls_delay;
-	int	     cdls_count;
-};
-
-struct libcfs_debug_msg_data {
-	const char *msg_file;
-	const char *msg_fn;
-	int	    msg_subsys;
-	int	    msg_line;
-	int	    msg_mask;
-	struct cfs_debug_limit_state *msg_cdls;
-};
-
-#define LIBCFS_DEBUG_MSG_DATA_INIT(data, mask, cdls)		\
-do {								\
-	(data)->msg_subsys = DEBUG_SUBSYSTEM;			\
-	(data)->msg_file   = __FILE__;				\
-	(data)->msg_fn     = __func__;				\
-	(data)->msg_line   = __LINE__;				\
-	(data)->msg_cdls   = (cdls);				\
-	(data)->msg_mask   = (mask);				\
-} while (0)
-
-#define LIBCFS_DEBUG_MSG_DATA_DECL(dataname, mask, cdls)	\
-	static struct libcfs_debug_msg_data dataname = {	\
-	       .msg_subsys = DEBUG_SUBSYSTEM,			\
-	       .msg_file   = __FILE__,				\
-	       .msg_fn     = __func__,				\
-	       .msg_line   = __LINE__,				\
-	       .msg_cdls   = (cdls)	 };			\
-	dataname.msg_mask   = (mask)
-
-/**
- * Filters out logging messages based on mask and subsystem.
- */
-static inline int cfs_cdebug_show(unsigned int mask, unsigned int subsystem)
-{
-	return mask & D_CANTMASK ||
-		((libcfs_debug & mask) && (libcfs_subsystem_debug & subsystem));
-}
-
-#define __CDEBUG(cdls, mask, format, ...)				\
-do {									\
-	static struct libcfs_debug_msg_data msgdata;			\
-									\
-	CFS_CHECK_STACK(&msgdata, mask, cdls);				\
-									\
-	if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) {			\
-		LIBCFS_DEBUG_MSG_DATA_INIT(&msgdata, mask, cdls);	\
-		libcfs_debug_msg(&msgdata, format, ## __VA_ARGS__);	\
-	}								\
-} while (0)
-
-#define CDEBUG(mask, format, ...) __CDEBUG(NULL, mask, format, ## __VA_ARGS__)
-
-#define CDEBUG_LIMIT(mask, format, ...)					\
-do {									\
-	static struct cfs_debug_limit_state cdls;			\
-									\
-	__CDEBUG(&cdls, mask, format, ## __VA_ARGS__);			\
-} while (0)
-
-#define CWARN(format, ...)	CDEBUG_LIMIT(D_WARNING, format, ## __VA_ARGS__)
-#define CERROR(format, ...)	CDEBUG_LIMIT(D_ERROR, format, ## __VA_ARGS__)
-#define CNETERR(format, a...)	CDEBUG_LIMIT(D_NETERROR, format, ## a)
-#define CEMERG(format, ...)	CDEBUG_LIMIT(D_EMERG, format, ## __VA_ARGS__)
-
-#define LCONSOLE(mask, format, ...) CDEBUG(D_CONSOLE | (mask), format, ## __VA_ARGS__)
-#define LCONSOLE_INFO(format, ...)  CDEBUG_LIMIT(D_CONSOLE, format, ## __VA_ARGS__)
-#define LCONSOLE_WARN(format, ...)  CDEBUG_LIMIT(D_CONSOLE | D_WARNING, format, ## __VA_ARGS__)
-#define LCONSOLE_ERROR_MSG(errnum, format, ...) CDEBUG_LIMIT(D_CONSOLE | D_ERROR, \
-			   "%x-%x: " format, errnum, LERRCHKSUM(errnum), ## __VA_ARGS__)
-#define LCONSOLE_ERROR(format, ...) LCONSOLE_ERROR_MSG(0x00, format, ## __VA_ARGS__)
-
-#define LCONSOLE_EMERG(format, ...) CDEBUG(D_CONSOLE | D_EMERG, format, ## __VA_ARGS__)
-
-int libcfs_debug_msg(struct libcfs_debug_msg_data *msgdata,
-			    const char *format1, ...)
-	__printf(2, 3);
-
-int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
-			      const char *format1,
-			      va_list args, const char *format2, ...)
-	__printf(4, 5);
-
-/* other external symbols that tracefile provides: */
-int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob,
-		const char __user *usr_buffer, int usr_buffer_nob);
-int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
-		const char *knl_buffer, char *append);
-
-#define LIBCFS_DEBUG_FILE_PATH_DEFAULT "/tmp/lustre-log"
-
-#endif	/* __LIBCFS_DEBUG_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h
deleted file mode 100644
index aa69c6a33d19..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see http://www.gnu.org/licenses
- *
- * Please contact Oracle Corporation, Inc., 500 Oracle Parkway, Redwood Shores,
- * CA 94065 USA or visit www.oracle.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Oracle Corporation, Inc.
- */
-
-#ifndef _LIBCFS_FAIL_H
-#define _LIBCFS_FAIL_H
-
-extern unsigned long cfs_fail_loc;
-extern unsigned int cfs_fail_val;
-
-extern wait_queue_head_t cfs_race_waitq;
-extern int cfs_race_state;
-
-int __cfs_fail_check_set(__u32 id, __u32 value, int set);
-int __cfs_fail_timeout_set(__u32 id, __u32 value, int ms, int set);
-
-enum {
-	CFS_FAIL_LOC_NOSET      = 0,
-	CFS_FAIL_LOC_ORSET      = 1,
-	CFS_FAIL_LOC_RESET      = 2,
-	CFS_FAIL_LOC_VALUE      = 3
-};
-
-/* Failure injection control */
-#define CFS_FAIL_MASK_SYS    0x0000FF00
-#define CFS_FAIL_MASK_LOC   (0x000000FF | CFS_FAIL_MASK_SYS)
-
-#define CFS_FAILED_BIT       30
-/* CFS_FAILED is 0x40000000 */
-#define CFS_FAILED	  (1 << CFS_FAILED_BIT)
-
-#define CFS_FAIL_ONCE_BIT    31
-/* CFS_FAIL_ONCE is 0x80000000 */
-#define CFS_FAIL_ONCE       (1 << CFS_FAIL_ONCE_BIT)
-
-/* The following flags aren't made to be combined */
-#define CFS_FAIL_SKIP	0x20000000 /* skip N times then fail */
-#define CFS_FAIL_SOME	0x10000000 /* only fail N times */
-#define CFS_FAIL_RAND	0x08000000 /* fail 1/N of the times */
-#define CFS_FAIL_USR1	0x04000000 /* user flag */
-
-#define CFS_FAIL_PRECHECK(id) (cfs_fail_loc &&				\
-			      (cfs_fail_loc & CFS_FAIL_MASK_LOC) ==	   \
-			      ((id) & CFS_FAIL_MASK_LOC))
-
-static inline int cfs_fail_check_set(__u32 id, __u32 value,
-				     int set, int quiet)
-{
-	int ret = 0;
-
-	if (unlikely(CFS_FAIL_PRECHECK(id))) {
-		ret = __cfs_fail_check_set(id, value, set);
-		if (ret) {
-			if (quiet) {
-				CDEBUG(D_INFO, "*** cfs_fail_loc=%x, val=%u***\n",
-				       id, value);
-			} else {
-				LCONSOLE_INFO("*** cfs_fail_loc=%x, val=%u***\n",
-					      id, value);
-			}
-		}
-	}
-
-	return ret;
-}
-
-/* If id hit cfs_fail_loc, return 1, otherwise return 0 */
-#define CFS_FAIL_CHECK(id) \
-	cfs_fail_check_set(id, 0, CFS_FAIL_LOC_NOSET, 0)
-#define CFS_FAIL_CHECK_QUIET(id) \
-	cfs_fail_check_set(id, 0, CFS_FAIL_LOC_NOSET, 1)
-
-/* If id hit cfs_fail_loc and cfs_fail_val == (-1 or value) return 1,
- * otherwise return 0 */
-#define CFS_FAIL_CHECK_VALUE(id, value) \
-	cfs_fail_check_set(id, value, CFS_FAIL_LOC_VALUE, 0)
-#define CFS_FAIL_CHECK_VALUE_QUIET(id, value) \
-	cfs_fail_check_set(id, value, CFS_FAIL_LOC_VALUE, 1)
-
-/* If id hit cfs_fail_loc, cfs_fail_loc |= value and return 1,
- * otherwise return 0 */
-#define CFS_FAIL_CHECK_ORSET(id, value) \
-	cfs_fail_check_set(id, value, CFS_FAIL_LOC_ORSET, 0)
-#define CFS_FAIL_CHECK_ORSET_QUIET(id, value) \
-	cfs_fail_check_set(id, value, CFS_FAIL_LOC_ORSET, 1)
-
-/* If id hit cfs_fail_loc, cfs_fail_loc = value and return 1,
- * otherwise return 0 */
-#define CFS_FAIL_CHECK_RESET(id, value) \
-	cfs_fail_check_set(id, value, CFS_FAIL_LOC_RESET, 0)
-#define CFS_FAIL_CHECK_RESET_QUIET(id, value) \
-	cfs_fail_check_set(id, value, CFS_FAIL_LOC_RESET, 1)
-
-static inline int cfs_fail_timeout_set(__u32 id, __u32 value, int ms, int set)
-{
-	if (unlikely(CFS_FAIL_PRECHECK(id)))
-		return __cfs_fail_timeout_set(id, value, ms, set);
-	return 0;
-}
-
-/* If id hit cfs_fail_loc, sleep for seconds or milliseconds */
-#define CFS_FAIL_TIMEOUT(id, secs) \
-	cfs_fail_timeout_set(id, 0, secs * 1000, CFS_FAIL_LOC_NOSET)
-
-#define CFS_FAIL_TIMEOUT_MS(id, ms) \
-	cfs_fail_timeout_set(id, 0, ms, CFS_FAIL_LOC_NOSET)
-
-/* If id hit cfs_fail_loc, cfs_fail_loc |= value and
- * sleep seconds or milliseconds */
-#define CFS_FAIL_TIMEOUT_ORSET(id, value, secs) \
-	cfs_fail_timeout_set(id, value, secs * 1000, CFS_FAIL_LOC_ORSET)
-
-#define CFS_FAIL_TIMEOUT_MS_ORSET(id, value, ms) \
-	cfs_fail_timeout_set(id, value, ms, CFS_FAIL_LOC_ORSET)
-
-/* The idea here is to synchronise two threads to force a race. The
- * first thread that calls this with a matching fail_loc is put to
- * sleep. The next thread that calls with the same fail_loc wakes up
- * the first and continues. */
-static inline void cfs_race(__u32 id)
-{
-
-	if (CFS_FAIL_PRECHECK(id)) {
-		if (unlikely(__cfs_fail_check_set(id, 0, CFS_FAIL_LOC_NOSET))) {
-			int rc;
-
-			cfs_race_state = 0;
-			CERROR("cfs_race id %x sleeping\n", id);
-			rc = wait_event_interruptible(cfs_race_waitq,
-						      cfs_race_state != 0);
-			CERROR("cfs_fail_race id %x awake, rc=%d\n", id, rc);
-		} else {
-			CERROR("cfs_fail_race id %x waking\n", id);
-			cfs_race_state = 1;
-			wake_up(&cfs_race_waitq);
-		}
-	}
-}
-
-#define CFS_RACE(id) cfs_race(id)
-
-#endif /* _LIBCFS_FAIL_H */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
deleted file mode 100644
index c40814591189..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ /dev/null
@@ -1,843 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_hash.h
- *
- * Hashing routines
- *
- */
-
-#ifndef __LIBCFS_HASH_H__
-#define __LIBCFS_HASH_H__
-/*
- * Knuth recommends primes in approximately golden ratio to the maximum
- * integer representable by a machine word for multiplicative hashing.
- * Chuck Lever verified the effectiveness of this technique:
- * http://www.citi.umich.edu/techreports/reports/citi-tr-00-1.pdf
- *
- * These primes are chosen to be bit-sparse, that is operations on
- * them can use shifts and additions instead of multiplications for
- * machines where multiplications are slow.
- */
-/* 2^31 + 2^29 - 2^25 + 2^22 - 2^19 - 2^16 + 1 */
-#define CFS_GOLDEN_RATIO_PRIME_32 0x9e370001UL
-/*  2^63 + 2^61 - 2^57 + 2^54 - 2^51 - 2^18 + 1 */
-#define CFS_GOLDEN_RATIO_PRIME_64 0x9e37fffffffc0001ULL
-
-/*
- * Ideally we would use HAVE_HASH_LONG for this, but on linux we configure
- * the linux kernel and user space at the same time, so we need to differentiate
- * between them explicitly. If this is not needed on other architectures, then
- * we'll need to move the functions to architecture specific headers.
- */
-
-#include <linux/hash.h>
-
-/** disable debug */
-#define CFS_HASH_DEBUG_NONE	 0
-/** record hash depth and output to console when it's too deep,
- *  computing overhead is low but consume more memory */
-#define CFS_HASH_DEBUG_1	    1
-/** expensive, check key validation */
-#define CFS_HASH_DEBUG_2	    2
-
-#define CFS_HASH_DEBUG_LEVEL	CFS_HASH_DEBUG_NONE
-
-struct cfs_hash_ops;
-struct cfs_hash_lock_ops;
-struct cfs_hash_hlist_ops;
-
-union cfs_hash_lock {
-	rwlock_t		rw;		/**< rwlock */
-	spinlock_t		spin;		/**< spinlock */
-};
-
-/**
- * cfs_hash_bucket is a container of:
- * - lock, counter ...
- * - array of hash-head starting from hsb_head[0], hash-head can be one of
- *   . cfs_hash_head_t
- *   . cfs_hash_head_dep_t
- *   . cfs_hash_dhead_t
- *   . cfs_hash_dhead_dep_t
- *   which depends on requirement of user
- * - some extra bytes (caller can require it while creating hash)
- */
-struct cfs_hash_bucket {
-	union cfs_hash_lock	hsb_lock;	/**< bucket lock */
-	__u32			hsb_count;	/**< current entries */
-	__u32			hsb_version;	/**< change version */
-	unsigned int		hsb_index;	/**< index of bucket */
-	int			hsb_depmax;	/**< max depth on bucket */
-	long			hsb_head[0];	/**< hash-head array */
-};
-
-/**
- * cfs_hash bucket descriptor, it's normally in stack of caller
- */
-struct cfs_hash_bd {
-	struct cfs_hash_bucket	*bd_bucket;      /**< address of bucket */
-	unsigned int		bd_offset;      /**< offset in bucket */
-};
-
-#define CFS_HASH_NAME_LEN	   16      /**< default name length */
-#define CFS_HASH_BIGNAME_LEN	64      /**< bigname for param tree */
-
-#define CFS_HASH_BKT_BITS	   3       /**< default bits of bucket */
-#define CFS_HASH_BITS_MAX	   30      /**< max bits of bucket */
-#define CFS_HASH_BITS_MIN	   CFS_HASH_BKT_BITS
-
-/**
- * common hash attributes.
- */
-enum cfs_hash_tag {
-	/**
-	 * don't need any lock, caller will protect operations with it's
-	 * own lock. With this flag:
-	 *  . CFS_HASH_NO_BKTLOCK, CFS_HASH_RW_BKTLOCK, CFS_HASH_SPIN_BKTLOCK
-	 *    will be ignored.
-	 *  . Some functions will be disabled with this flag, i.e:
-	 *    cfs_hash_for_each_empty, cfs_hash_rehash
-	 */
-	CFS_HASH_NO_LOCK	= 1 << 0,
-	/** no bucket lock, use one spinlock to protect the whole hash */
-	CFS_HASH_NO_BKTLOCK     = 1 << 1,
-	/** rwlock to protect bucket */
-	CFS_HASH_RW_BKTLOCK     = 1 << 2,
-	/** spinlock to protect bucket */
-	CFS_HASH_SPIN_BKTLOCK   = 1 << 3,
-	/** always add new item to tail */
-	CFS_HASH_ADD_TAIL       = 1 << 4,
-	/** hash-table doesn't have refcount on item */
-	CFS_HASH_NO_ITEMREF     = 1 << 5,
-	/** big name for param-tree */
-	CFS_HASH_BIGNAME	= 1 << 6,
-	/** track global count */
-	CFS_HASH_COUNTER	= 1 << 7,
-	/** rehash item by new key */
-	CFS_HASH_REHASH_KEY     = 1 << 8,
-	/** Enable dynamic hash resizing */
-	CFS_HASH_REHASH	 = 1 << 9,
-	/** can shrink hash-size */
-	CFS_HASH_SHRINK	 = 1 << 10,
-	/** assert hash is empty on exit */
-	CFS_HASH_ASSERT_EMPTY   = 1 << 11,
-	/** record hlist depth */
-	CFS_HASH_DEPTH	  = 1 << 12,
-	/**
-	 * rehash is always scheduled in a different thread, so current
-	 * change on hash table is non-blocking
-	 */
-	CFS_HASH_NBLK_CHANGE    = 1 << 13,
-	/** NB, we typed hs_flags as  __u16, please change it
-	 * if you need to extend >=16 flags */
-};
-
-/** most used attributes */
-#define CFS_HASH_DEFAULT       (CFS_HASH_RW_BKTLOCK | \
-				CFS_HASH_COUNTER | CFS_HASH_REHASH)
-
-/**
- * cfs_hash is a hash-table implementation for general purpose, it can support:
- *    . two refcount modes
- *      hash-table with & without refcount
- *    . four lock modes
- *      nolock, one-spinlock, rw-bucket-lock, spin-bucket-lock
- *    . general operations
- *      lookup, add(add_tail or add_head), delete
- *    . rehash
- *      grows or shrink
- *    . iteration
- *      locked iteration and unlocked iteration
- *    . bigname
- *      support long name hash
- *    . debug
- *      trace max searching depth
- *
- * Rehash:
- * When the htable grows or shrinks, a separate task (cfs_hash_rehash_worker)
- * is spawned to handle the rehash in the background, it's possible that other
- * processes can concurrently perform additions, deletions, and lookups
- * without being blocked on rehash completion, because rehash will release
- * the global wrlock for each bucket.
- *
- * rehash and iteration can't run at the same time because it's too tricky
- * to keep both of them safe and correct.
- * As they are relatively rare operations, so:
- *   . if iteration is in progress while we try to launch rehash, then
- *     it just giveup, iterator will launch rehash at the end.
- *   . if rehash is in progress while we try to iterate the hash table,
- *     then we just wait (shouldn't be very long time), anyway, nobody
- *     should expect iteration of whole hash-table to be non-blocking.
- *
- * During rehashing, a (key,object) pair may be in one of two buckets,
- * depending on whether the worker task has yet to transfer the object
- * to its new location in the table. Lookups and deletions need to search both
- * locations; additions must take care to only insert into the new bucket.
- */
-
-struct cfs_hash {
-	/** serialize with rehash, or serialize all operations if
-	 * the hash-table has CFS_HASH_NO_BKTLOCK */
-	union cfs_hash_lock	     hs_lock;
-	/** hash operations */
-	struct cfs_hash_ops	*hs_ops;
-	/** hash lock operations */
-	struct cfs_hash_lock_ops   *hs_lops;
-	/** hash list operations */
-	struct cfs_hash_hlist_ops  *hs_hops;
-	/** hash buckets-table */
-	struct cfs_hash_bucket	 **hs_buckets;
-	/** total number of items on this hash-table */
-	atomic_t		hs_count;
-	/** hash flags, see cfs_hash_tag for detail */
-	__u16		       hs_flags;
-	/** # of extra-bytes for bucket, for user saving extended attributes */
-	__u16		       hs_extra_bytes;
-	/** wants to iterate */
-	__u8			hs_iterating;
-	/** hash-table is dying */
-	__u8			hs_exiting;
-	/** current hash bits */
-	__u8			hs_cur_bits;
-	/** min hash bits */
-	__u8			hs_min_bits;
-	/** max hash bits */
-	__u8			hs_max_bits;
-	/** bits for rehash */
-	__u8			hs_rehash_bits;
-	/** bits for each bucket */
-	__u8			hs_bkt_bits;
-	/** resize min threshold */
-	__u16		       hs_min_theta;
-	/** resize max threshold */
-	__u16		       hs_max_theta;
-	/** resize count */
-	__u32		       hs_rehash_count;
-	/** # of iterators (caller of cfs_hash_for_each_*) */
-	__u32		       hs_iterators;
-	/** rehash workitem */
-	cfs_workitem_t	      hs_rehash_wi;
-	/** refcount on this hash table */
-	atomic_t		hs_refcount;
-	/** rehash buckets-table */
-	struct cfs_hash_bucket	 **hs_rehash_buckets;
-#if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
-	/** serialize debug members */
-	spinlock_t			hs_dep_lock;
-	/** max depth */
-	unsigned int		hs_dep_max;
-	/** id of the deepest bucket */
-	unsigned int		hs_dep_bkt;
-	/** offset in the deepest bucket */
-	unsigned int		hs_dep_off;
-	/** bits when we found the max depth */
-	unsigned int		hs_dep_bits;
-	/** workitem to output max depth */
-	cfs_workitem_t	      hs_dep_wi;
-#endif
-	/** name of htable */
-	char			hs_name[0];
-};
-
-typedef struct cfs_hash_lock_ops {
-	/** lock the hash table */
-	void    (*hs_lock)(union cfs_hash_lock *lock, int exclusive);
-	/** unlock the hash table */
-	void    (*hs_unlock)(union cfs_hash_lock *lock, int exclusive);
-	/** lock the hash bucket */
-	void    (*hs_bkt_lock)(union cfs_hash_lock *lock, int exclusive);
-	/** unlock the hash bucket */
-	void    (*hs_bkt_unlock)(union cfs_hash_lock *lock, int exclusive);
-} cfs_hash_lock_ops_t;
-
-typedef struct cfs_hash_hlist_ops {
-	/** return hlist_head of hash-head of @bd */
-	struct hlist_head *(*hop_hhead)(struct cfs_hash *hs, struct cfs_hash_bd *bd);
-	/** return hash-head size */
-	int (*hop_hhead_size)(struct cfs_hash *hs);
-	/** add @hnode to hash-head of @bd */
-	int (*hop_hnode_add)(struct cfs_hash *hs,
-			     struct cfs_hash_bd *bd, struct hlist_node *hnode);
-	/** remove @hnode from hash-head of @bd */
-	int (*hop_hnode_del)(struct cfs_hash *hs,
-			     struct cfs_hash_bd *bd, struct hlist_node *hnode);
-} cfs_hash_hlist_ops_t;
-
-typedef struct cfs_hash_ops {
-	/** return hashed value from @key */
-	unsigned (*hs_hash)(struct cfs_hash *hs, const void *key, unsigned mask);
-	/** return key address of @hnode */
-	void *   (*hs_key)(struct hlist_node *hnode);
-	/** copy key from @hnode to @key */
-	void     (*hs_keycpy)(struct hlist_node *hnode, void *key);
-	/**
-	 *  compare @key with key of @hnode
-	 *  returns 1 on a match
-	 */
-	int      (*hs_keycmp)(const void *key, struct hlist_node *hnode);
-	/** return object address of @hnode, i.e: container_of(...hnode) */
-	void *   (*hs_object)(struct hlist_node *hnode);
-	/** get refcount of item, always called with holding bucket-lock */
-	void     (*hs_get)(struct cfs_hash *hs, struct hlist_node *hnode);
-	/** release refcount of item */
-	void     (*hs_put)(struct cfs_hash *hs, struct hlist_node *hnode);
-	/** release refcount of item, always called with holding bucket-lock */
-	void     (*hs_put_locked)(struct cfs_hash *hs, struct hlist_node *hnode);
-	/** it's called before removing of @hnode */
-	void     (*hs_exit)(struct cfs_hash *hs, struct hlist_node *hnode);
-} cfs_hash_ops_t;
-
-/** total number of buckets in @hs */
-#define CFS_HASH_NBKT(hs)       \
-	(1U << ((hs)->hs_cur_bits - (hs)->hs_bkt_bits))
-
-/** total number of buckets in @hs while rehashing */
-#define CFS_HASH_RH_NBKT(hs)    \
-	(1U << ((hs)->hs_rehash_bits - (hs)->hs_bkt_bits))
-
-/** number of hlist for in bucket */
-#define CFS_HASH_BKT_NHLIST(hs) (1U << (hs)->hs_bkt_bits)
-
-/** total number of hlist in @hs */
-#define CFS_HASH_NHLIST(hs)     (1U << (hs)->hs_cur_bits)
-
-/** total number of hlist in @hs while rehashing */
-#define CFS_HASH_RH_NHLIST(hs)  (1U << (hs)->hs_rehash_bits)
-
-static inline int
-cfs_hash_with_no_lock(struct cfs_hash *hs)
-{
-	/* caller will serialize all operations for this hash-table */
-	return (hs->hs_flags & CFS_HASH_NO_LOCK) != 0;
-}
-
-static inline int
-cfs_hash_with_no_bktlock(struct cfs_hash *hs)
-{
-	/* no bucket lock, one single lock to protect the hash-table */
-	return (hs->hs_flags & CFS_HASH_NO_BKTLOCK) != 0;
-}
-
-static inline int
-cfs_hash_with_rw_bktlock(struct cfs_hash *hs)
-{
-	/* rwlock to protect hash bucket */
-	return (hs->hs_flags & CFS_HASH_RW_BKTLOCK) != 0;
-}
-
-static inline int
-cfs_hash_with_spin_bktlock(struct cfs_hash *hs)
-{
-	/* spinlock to protect hash bucket */
-	return (hs->hs_flags & CFS_HASH_SPIN_BKTLOCK) != 0;
-}
-
-static inline int
-cfs_hash_with_add_tail(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_ADD_TAIL) != 0;
-}
-
-static inline int
-cfs_hash_with_no_itemref(struct cfs_hash *hs)
-{
-	/* hash-table doesn't keep refcount on item,
-	 * item can't be removed from hash unless it's
-	 * ZERO refcount */
-	return (hs->hs_flags & CFS_HASH_NO_ITEMREF) != 0;
-}
-
-static inline int
-cfs_hash_with_bigname(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_BIGNAME) != 0;
-}
-
-static inline int
-cfs_hash_with_counter(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_COUNTER) != 0;
-}
-
-static inline int
-cfs_hash_with_rehash(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_REHASH) != 0;
-}
-
-static inline int
-cfs_hash_with_rehash_key(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_REHASH_KEY) != 0;
-}
-
-static inline int
-cfs_hash_with_shrink(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_SHRINK) != 0;
-}
-
-static inline int
-cfs_hash_with_assert_empty(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_ASSERT_EMPTY) != 0;
-}
-
-static inline int
-cfs_hash_with_depth(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_DEPTH) != 0;
-}
-
-static inline int
-cfs_hash_with_nblk_change(struct cfs_hash *hs)
-{
-	return (hs->hs_flags & CFS_HASH_NBLK_CHANGE) != 0;
-}
-
-static inline int
-cfs_hash_is_exiting(struct cfs_hash *hs)
-{       /* cfs_hash_destroy is called */
-	return hs->hs_exiting;
-}
-
-static inline int
-cfs_hash_is_rehashing(struct cfs_hash *hs)
-{       /* rehash is launched */
-	return hs->hs_rehash_bits != 0;
-}
-
-static inline int
-cfs_hash_is_iterating(struct cfs_hash *hs)
-{       /* someone is calling cfs_hash_for_each_* */
-	return hs->hs_iterating || hs->hs_iterators != 0;
-}
-
-static inline int
-cfs_hash_bkt_size(struct cfs_hash *hs)
-{
-	return offsetof(struct cfs_hash_bucket, hsb_head[0]) +
-	       hs->hs_hops->hop_hhead_size(hs) * CFS_HASH_BKT_NHLIST(hs) +
-	       hs->hs_extra_bytes;
-}
-
-static inline unsigned
-cfs_hash_id(struct cfs_hash *hs, const void *key, unsigned mask)
-{
-	return hs->hs_ops->hs_hash(hs, key, mask);
-}
-
-static inline void *
-cfs_hash_key(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	return hs->hs_ops->hs_key(hnode);
-}
-
-static inline void
-cfs_hash_keycpy(struct cfs_hash *hs, struct hlist_node *hnode, void *key)
-{
-	if (hs->hs_ops->hs_keycpy)
-		hs->hs_ops->hs_keycpy(hnode, key);
-}
-
-/**
- * Returns 1 on a match,
- */
-static inline int
-cfs_hash_keycmp(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
-{
-	return hs->hs_ops->hs_keycmp(key, hnode);
-}
-
-static inline void *
-cfs_hash_object(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	return hs->hs_ops->hs_object(hnode);
-}
-
-static inline void
-cfs_hash_get(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	return hs->hs_ops->hs_get(hs, hnode);
-}
-
-static inline void
-cfs_hash_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	return hs->hs_ops->hs_put_locked(hs, hnode);
-}
-
-static inline void
-cfs_hash_put(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	return hs->hs_ops->hs_put(hs, hnode);
-}
-
-static inline void
-cfs_hash_exit(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	if (hs->hs_ops->hs_exit)
-		hs->hs_ops->hs_exit(hs, hnode);
-}
-
-static inline void cfs_hash_lock(struct cfs_hash *hs, int excl)
-{
-	hs->hs_lops->hs_lock(&hs->hs_lock, excl);
-}
-
-static inline void cfs_hash_unlock(struct cfs_hash *hs, int excl)
-{
-	hs->hs_lops->hs_unlock(&hs->hs_lock, excl);
-}
-
-static inline int cfs_hash_dec_and_lock(struct cfs_hash *hs,
-					atomic_t *condition)
-{
-	LASSERT(cfs_hash_with_no_bktlock(hs));
-	return atomic_dec_and_lock(condition, &hs->hs_lock.spin);
-}
-
-static inline void cfs_hash_bd_lock(struct cfs_hash *hs,
-				    struct cfs_hash_bd *bd, int excl)
-{
-	hs->hs_lops->hs_bkt_lock(&bd->bd_bucket->hsb_lock, excl);
-}
-
-static inline void cfs_hash_bd_unlock(struct cfs_hash *hs,
-				      struct cfs_hash_bd *bd, int excl)
-{
-	hs->hs_lops->hs_bkt_unlock(&bd->bd_bucket->hsb_lock, excl);
-}
-
-/**
- * operations on cfs_hash bucket (bd: bucket descriptor),
- * they are normally for hash-table without rehash
- */
-void cfs_hash_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bd);
-
-static inline void cfs_hash_bd_get_and_lock(struct cfs_hash *hs, const void *key,
-					    struct cfs_hash_bd *bd, int excl)
-{
-	cfs_hash_bd_get(hs, key, bd);
-	cfs_hash_bd_lock(hs, bd, excl);
-}
-
-static inline unsigned cfs_hash_bd_index_get(struct cfs_hash *hs, struct cfs_hash_bd *bd)
-{
-	return bd->bd_offset | (bd->bd_bucket->hsb_index << hs->hs_bkt_bits);
-}
-
-static inline void cfs_hash_bd_index_set(struct cfs_hash *hs,
-					 unsigned index, struct cfs_hash_bd *bd)
-{
-	bd->bd_bucket = hs->hs_buckets[index >> hs->hs_bkt_bits];
-	bd->bd_offset = index & (CFS_HASH_BKT_NHLIST(hs) - 1U);
-}
-
-static inline void *
-cfs_hash_bd_extra_get(struct cfs_hash *hs, struct cfs_hash_bd *bd)
-{
-	return (void *)bd->bd_bucket +
-	       cfs_hash_bkt_size(hs) - hs->hs_extra_bytes;
-}
-
-static inline __u32
-cfs_hash_bd_version_get(struct cfs_hash_bd *bd)
-{
-	/* need hold cfs_hash_bd_lock */
-	return bd->bd_bucket->hsb_version;
-}
-
-static inline __u32
-cfs_hash_bd_count_get(struct cfs_hash_bd *bd)
-{
-	/* need hold cfs_hash_bd_lock */
-	return bd->bd_bucket->hsb_count;
-}
-
-static inline int
-cfs_hash_bd_depmax_get(struct cfs_hash_bd *bd)
-{
-	return bd->bd_bucket->hsb_depmax;
-}
-
-static inline int
-cfs_hash_bd_compare(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
-{
-	if (bd1->bd_bucket->hsb_index != bd2->bd_bucket->hsb_index)
-		return bd1->bd_bucket->hsb_index - bd2->bd_bucket->hsb_index;
-
-	if (bd1->bd_offset != bd2->bd_offset)
-		return bd1->bd_offset - bd2->bd_offset;
-
-	return 0;
-}
-
-void cfs_hash_bd_add_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			    struct hlist_node *hnode);
-void cfs_hash_bd_del_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			    struct hlist_node *hnode);
-void cfs_hash_bd_move_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd_old,
-			     struct cfs_hash_bd *bd_new, struct hlist_node *hnode);
-
-static inline int cfs_hash_bd_dec_and_lock(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-					   atomic_t *condition)
-{
-	LASSERT(cfs_hash_with_spin_bktlock(hs));
-	return atomic_dec_and_lock(condition,
-				       &bd->bd_bucket->hsb_lock.spin);
-}
-
-static inline struct hlist_head *cfs_hash_bd_hhead(struct cfs_hash *hs,
-						   struct cfs_hash_bd *bd)
-{
-	return hs->hs_hops->hop_hhead(hs, bd);
-}
-
-struct hlist_node *cfs_hash_bd_lookup_locked(struct cfs_hash *hs,
-					     struct cfs_hash_bd *bd, const void *key);
-struct hlist_node *cfs_hash_bd_peek_locked(struct cfs_hash *hs,
-					   struct cfs_hash_bd *bd, const void *key);
-struct hlist_node *cfs_hash_bd_findadd_locked(struct cfs_hash *hs,
-					      struct cfs_hash_bd *bd, const void *key,
-					     struct hlist_node *hnode,
-					     int insist_add);
-struct hlist_node *cfs_hash_bd_finddel_locked(struct cfs_hash *hs,
-					      struct cfs_hash_bd *bd, const void *key,
-					     struct hlist_node *hnode);
-
-/**
- * operations on cfs_hash bucket (bd: bucket descriptor),
- * they are safe for hash-table with rehash
- */
-void cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bds);
-void cfs_hash_dual_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl);
-void cfs_hash_dual_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl);
-
-static inline void cfs_hash_dual_bd_get_and_lock(struct cfs_hash *hs, const void *key,
-						 struct cfs_hash_bd *bds, int excl)
-{
-	cfs_hash_dual_bd_get(hs, key, bds);
-	cfs_hash_dual_bd_lock(hs, bds, excl);
-}
-
-struct hlist_node *cfs_hash_dual_bd_lookup_locked(struct cfs_hash *hs,
-						  struct cfs_hash_bd *bds,
-						 const void *key);
-struct hlist_node *cfs_hash_dual_bd_findadd_locked(struct cfs_hash *hs,
-						   struct cfs_hash_bd *bds,
-						  const void *key,
-						  struct hlist_node *hnode,
-						  int insist_add);
-struct hlist_node *cfs_hash_dual_bd_finddel_locked(struct cfs_hash *hs,
-						   struct cfs_hash_bd *bds,
-						  const void *key,
-						  struct hlist_node *hnode);
-
-/* Hash init/cleanup functions */
-struct cfs_hash *cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
-				 unsigned bkt_bits, unsigned extra_bytes,
-			    unsigned min_theta, unsigned max_theta,
-			    cfs_hash_ops_t *ops, unsigned flags);
-
-struct cfs_hash *cfs_hash_getref(struct cfs_hash *hs);
-void cfs_hash_putref(struct cfs_hash *hs);
-
-/* Hash addition functions */
-void cfs_hash_add(struct cfs_hash *hs, const void *key,
-		  struct hlist_node *hnode);
-int cfs_hash_add_unique(struct cfs_hash *hs, const void *key,
-			struct hlist_node *hnode);
-void *cfs_hash_findadd_unique(struct cfs_hash *hs, const void *key,
-			      struct hlist_node *hnode);
-
-/* Hash deletion functions */
-void *cfs_hash_del(struct cfs_hash *hs, const void *key, struct hlist_node *hnode);
-void *cfs_hash_del_key(struct cfs_hash *hs, const void *key);
-
-/* Hash lookup/for_each functions */
-#define CFS_HASH_LOOP_HOG       1024
-
-typedef int (*cfs_hash_for_each_cb_t)(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-				      struct hlist_node *node, void *data);
-void *cfs_hash_lookup(struct cfs_hash *hs, const void *key);
-void cfs_hash_for_each(struct cfs_hash *hs, cfs_hash_for_each_cb_t, void *data);
-void cfs_hash_for_each_safe(struct cfs_hash *hs, cfs_hash_for_each_cb_t, void *data);
-int  cfs_hash_for_each_nolock(struct cfs_hash *hs,
-			      cfs_hash_for_each_cb_t, void *data);
-int  cfs_hash_for_each_empty(struct cfs_hash *hs,
-			     cfs_hash_for_each_cb_t, void *data);
-void cfs_hash_for_each_key(struct cfs_hash *hs, const void *key,
-			   cfs_hash_for_each_cb_t, void *data);
-typedef int (*cfs_hash_cond_opt_cb_t)(void *obj, void *data);
-void cfs_hash_cond_del(struct cfs_hash *hs, cfs_hash_cond_opt_cb_t, void *data);
-
-void cfs_hash_hlist_for_each(struct cfs_hash *hs, unsigned hindex,
-			     cfs_hash_for_each_cb_t, void *data);
-int  cfs_hash_is_empty(struct cfs_hash *hs);
-__u64 cfs_hash_size_get(struct cfs_hash *hs);
-
-/*
- * Rehash - Theta is calculated to be the average chained
- * hash depth assuming a perfectly uniform hash function.
- */
-void cfs_hash_rehash_cancel_locked(struct cfs_hash *hs);
-void cfs_hash_rehash_cancel(struct cfs_hash *hs);
-int  cfs_hash_rehash(struct cfs_hash *hs, int do_rehash);
-void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
-			 void *new_key, struct hlist_node *hnode);
-
-#if CFS_HASH_DEBUG_LEVEL > CFS_HASH_DEBUG_1
-/* Validate hnode references the correct key */
-static inline void
-cfs_hash_key_validate(struct cfs_hash *hs, const void *key,
-		      struct hlist_node *hnode)
-{
-	LASSERT(cfs_hash_keycmp(hs, key, hnode));
-}
-
-/* Validate hnode is in the correct bucket */
-static inline void
-cfs_hash_bucket_validate(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			 struct hlist_node *hnode)
-{
-	struct cfs_hash_bd   bds[2];
-
-	cfs_hash_dual_bd_get(hs, cfs_hash_key(hs, hnode), bds);
-	LASSERT(bds[0].bd_bucket == bd->bd_bucket ||
-		bds[1].bd_bucket == bd->bd_bucket);
-}
-
-#else /* CFS_HASH_DEBUG_LEVEL > CFS_HASH_DEBUG_1 */
-
-static inline void
-cfs_hash_key_validate(struct cfs_hash *hs, const void *key,
-		      struct hlist_node *hnode) {}
-
-static inline void
-cfs_hash_bucket_validate(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			 struct hlist_node *hnode) {}
-
-#endif /* CFS_HASH_DEBUG_LEVEL */
-
-#define CFS_HASH_THETA_BITS  10
-#define CFS_HASH_MIN_THETA  (1U << (CFS_HASH_THETA_BITS - 1))
-#define CFS_HASH_MAX_THETA  (1U << (CFS_HASH_THETA_BITS + 1))
-
-/* Return integer component of theta */
-static inline int __cfs_hash_theta_int(int theta)
-{
-	return (theta >> CFS_HASH_THETA_BITS);
-}
-
-/* Return a fractional value between 0 and 999 */
-static inline int __cfs_hash_theta_frac(int theta)
-{
-	return ((theta * 1000) >> CFS_HASH_THETA_BITS) -
-	       (__cfs_hash_theta_int(theta) * 1000);
-}
-
-static inline int __cfs_hash_theta(struct cfs_hash *hs)
-{
-	return (atomic_read(&hs->hs_count) <<
-		CFS_HASH_THETA_BITS) >> hs->hs_cur_bits;
-}
-
-static inline void __cfs_hash_set_theta(struct cfs_hash *hs, int min, int max)
-{
-	LASSERT(min < max);
-	hs->hs_min_theta = (__u16)min;
-	hs->hs_max_theta = (__u16)max;
-}
-
-/* Generic debug formatting routines mainly for proc handler */
-struct seq_file;
-void cfs_hash_debug_header(struct seq_file *m);
-void cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m);
-
-/*
- * Generic djb2 hash algorithm for character arrays.
- */
-static inline unsigned
-cfs_hash_djb2_hash(const void *key, size_t size, unsigned mask)
-{
-	unsigned i, hash = 5381;
-
-	LASSERT(key != NULL);
-
-	for (i = 0; i < size; i++)
-		hash = hash * 33 + ((char *)key)[i];
-
-	return (hash & mask);
-}
-
-/*
- * Generic u32 hash algorithm.
- */
-static inline unsigned
-cfs_hash_u32_hash(const __u32 key, unsigned mask)
-{
-	return ((key * CFS_GOLDEN_RATIO_PRIME_32) & mask);
-}
-
-/*
- * Generic u64 hash algorithm.
- */
-static inline unsigned
-cfs_hash_u64_hash(const __u64 key, unsigned mask)
-{
-	return ((unsigned)(key * CFS_GOLDEN_RATIO_PRIME_64) & mask);
-}
-
-/** iterate over all buckets in @bds (array of struct cfs_hash_bd) */
-#define cfs_hash_for_each_bd(bds, n, i) \
-	for (i = 0; i < n && (bds)[i].bd_bucket != NULL; i++)
-
-/** iterate over all buckets of @hs */
-#define cfs_hash_for_each_bucket(hs, bd, pos)		   \
-	for (pos = 0;					   \
-	     pos < CFS_HASH_NBKT(hs) &&			 \
-	     ((bd)->bd_bucket = (hs)->hs_buckets[pos]) != NULL; pos++)
-
-/** iterate over all hlist of bucket @bd */
-#define cfs_hash_bd_for_each_hlist(hs, bd, hlist)	       \
-	for ((bd)->bd_offset = 0;			       \
-	     (bd)->bd_offset < CFS_HASH_BKT_NHLIST(hs) &&       \
-	     (hlist = cfs_hash_bd_hhead(hs, bd)) != NULL;       \
-	     (bd)->bd_offset++)
-
-/* !__LIBCFS__HASH_H__ */
-#endif
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h
deleted file mode 100644
index f5d741f25ffd..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_ioctl.h
- *
- * Low-level ioctl data structures. Kernel ioctl functions declared here,
- * and user space functions are in libcfsutil_ioctl.h.
- *
- */
-
-#ifndef __LIBCFS_IOCTL_H__
-#define __LIBCFS_IOCTL_H__
-
-#define LIBCFS_IOCTL_VERSION 0x0001000a
-
-struct libcfs_ioctl_data {
-	__u32 ioc_len;
-	__u32 ioc_version;
-
-	__u64 ioc_nid;
-	__u64 ioc_u64[1];
-
-	__u32 ioc_flags;
-	__u32 ioc_count;
-	__u32 ioc_net;
-	__u32 ioc_u32[7];
-
-	__u32 ioc_inllen1;
-	char *ioc_inlbuf1;
-	__u32 ioc_inllen2;
-	char *ioc_inlbuf2;
-
-	__u32 ioc_plen1; /* buffers in userspace */
-	char *ioc_pbuf1;
-	__u32 ioc_plen2; /* buffers in userspace */
-	char *ioc_pbuf2;
-
-	char ioc_bulk[0];
-};
-
-#define ioc_priority ioc_u32[0]
-
-struct libcfs_ioctl_hdr {
-	__u32 ioc_len;
-	__u32 ioc_version;
-};
-
-struct libcfs_debug_ioctl_data {
-	struct libcfs_ioctl_hdr hdr;
-	unsigned int subs;
-	unsigned int debug;
-};
-
-#define LIBCFS_IOC_INIT(data)			   \
-do {						    \
-	memset(&data, 0, sizeof(data));		 \
-	data.ioc_version = LIBCFS_IOCTL_VERSION;	\
-	data.ioc_len = sizeof(data);		    \
-} while (0)
-
-struct libcfs_ioctl_handler {
-	struct list_head item;
-	int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data);
-};
-
-#define DECLARE_IOCTL_HANDLER(ident, func)		      \
-	struct libcfs_ioctl_handler ident = {		   \
-		/* .item = */ LIST_HEAD_INIT(ident.item),   \
-		/* .handle_ioctl = */ func		      \
-	}
-
-/* FIXME check conflict with lustre_lib.h */
-#define LIBCFS_IOC_DEBUG_MASK	     _IOWR('f', 250, long)
-
-/* ioctls for manipulating snapshots 30- */
-#define IOC_LIBCFS_TYPE		   'e'
-#define IOC_LIBCFS_MIN_NR		 30
-/* libcfs ioctls */
-#define IOC_LIBCFS_PANIC		   _IOWR('e', 30, long)
-#define IOC_LIBCFS_CLEAR_DEBUG	     _IOWR('e', 31, long)
-#define IOC_LIBCFS_MARK_DEBUG	      _IOWR('e', 32, long)
-#define IOC_LIBCFS_MEMHOG		  _IOWR('e', 36, long)
-#define IOC_LIBCFS_PING_TEST	       _IOWR('e', 37, long)
-/* lnet ioctls */
-#define IOC_LIBCFS_GET_NI		  _IOWR('e', 50, long)
-#define IOC_LIBCFS_FAIL_NID		_IOWR('e', 51, long)
-#define IOC_LIBCFS_ADD_ROUTE	       _IOWR('e', 52, long)
-#define IOC_LIBCFS_DEL_ROUTE	       _IOWR('e', 53, long)
-#define IOC_LIBCFS_GET_ROUTE	       _IOWR('e', 54, long)
-#define IOC_LIBCFS_NOTIFY_ROUTER	   _IOWR('e', 55, long)
-#define IOC_LIBCFS_UNCONFIGURE	     _IOWR('e', 56, long)
-#define IOC_LIBCFS_PORTALS_COMPATIBILITY   _IOWR('e', 57, long)
-#define IOC_LIBCFS_LNET_DIST	       _IOWR('e', 58, long)
-#define IOC_LIBCFS_CONFIGURE	       _IOWR('e', 59, long)
-#define IOC_LIBCFS_TESTPROTOCOMPAT	 _IOWR('e', 60, long)
-#define IOC_LIBCFS_PING		    _IOWR('e', 61, long)
-#define IOC_LIBCFS_DEBUG_PEER	      _IOWR('e', 62, long)
-#define IOC_LIBCFS_LNETST		  _IOWR('e', 63, long)
-/* lnd ioctls */
-#define IOC_LIBCFS_REGISTER_MYNID	  _IOWR('e', 70, long)
-#define IOC_LIBCFS_CLOSE_CONNECTION	_IOWR('e', 71, long)
-#define IOC_LIBCFS_PUSH_CONNECTION	 _IOWR('e', 72, long)
-#define IOC_LIBCFS_GET_CONN		_IOWR('e', 73, long)
-#define IOC_LIBCFS_DEL_PEER		_IOWR('e', 74, long)
-#define IOC_LIBCFS_ADD_PEER		_IOWR('e', 75, long)
-#define IOC_LIBCFS_GET_PEER		_IOWR('e', 76, long)
-/* ioctl 77 is free for use */
-#define IOC_LIBCFS_ADD_INTERFACE	   _IOWR('e', 78, long)
-#define IOC_LIBCFS_DEL_INTERFACE	   _IOWR('e', 79, long)
-#define IOC_LIBCFS_GET_INTERFACE	   _IOWR('e', 80, long)
-
-#define IOC_LIBCFS_MAX_NR			     80
-
-static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
-{
-	int len = sizeof(*data);
-
-	len += cfs_size_round(data->ioc_inllen1);
-	len += cfs_size_round(data->ioc_inllen2);
-	return len;
-}
-
-static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
-{
-	if (data->ioc_len > (1<<30)) {
-		CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n");
-		return 1;
-	}
-	if (data->ioc_inllen1 > (1<<30)) {
-		CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n");
-		return 1;
-	}
-	if (data->ioc_inllen2 > (1<<30)) {
-		CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
-		CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
-		CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_pbuf1 && !data->ioc_plen1) {
-		CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_pbuf2 && !data->ioc_plen2) {
-		CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_plen1 && !data->ioc_pbuf1) {
-		CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
-		return 1;
-	}
-	if (data->ioc_plen2 && !data->ioc_pbuf2) {
-		CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
-		return 1;
-	}
-	if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_len) {
-		CERROR("LIBCFS ioctl: packlen != ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inllen1 &&
-	    data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
-		CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n");
-		return 1;
-	}
-	if (data->ioc_inllen2 &&
-	    data->ioc_bulk[cfs_size_round(data->ioc_inllen1) +
-			   data->ioc_inllen2 - 1] != '\0') {
-		CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n");
-		return 1;
-	}
-	return 0;
-}
-
-int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
-int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
-int libcfs_ioctl_getdata(char *buf, char *end, void *arg);
-int libcfs_ioctl_popdata(void *arg, void *buf, int size);
-
-#endif /* __LIBCFS_IOCTL_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
deleted file mode 100644
index a989d2666230..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_kernelcomm.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Author: Nathan Rutman <nathan.rutman@sun.com>
- *
- * libcfs/include/libcfs/libcfs_kernelcomm.h
- *
- * Kernel <-> userspace communication routines.
- * The definitions below are used in the kernel and userspace.
- *
- */
-
-#ifndef __LIBCFS_KERNELCOMM_H__
-#define __LIBCFS_KERNELCOMM_H__
-
-#ifndef __LIBCFS_LIBCFS_H__
-#error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead
-#endif
-
-/* KUC message header.
- * All current and future KUC messages should use this header.
- * To avoid having to include Lustre headers from libcfs, define this here.
- */
-struct kuc_hdr {
-	__u16 kuc_magic;
-	__u8  kuc_transport;  /* Each new Lustre feature should use a different
-				 transport */
-	__u8  kuc_flags;
-	__u16 kuc_msgtype;    /* Message type or opcode, transport-specific */
-	__u16 kuc_msglen;     /* Including header */
-} __aligned(sizeof(__u64));
-
-#define KUC_CHANGELOG_MSG_MAXSIZE (sizeof(struct kuc_hdr)+CR_MAXSIZE)
-
-#define KUC_MAGIC  0x191C /*Lustre9etLinC */
-#define KUC_FL_BLOCK 0x01   /* Wait for send */
-
-/* kuc_msgtype values are defined in each transport */
-enum kuc_transport_type {
-	KUC_TRANSPORT_GENERIC   = 1,
-	KUC_TRANSPORT_HSM       = 2,
-	KUC_TRANSPORT_CHANGELOG = 3,
-};
-
-enum kuc_generic_message_type {
-	KUC_MSG_SHUTDOWN = 1,
-};
-
-/* prototype for callback function on kuc groups */
-typedef int (*libcfs_kkuc_cb_t)(__u32 data, void *cb_arg);
-
-/* KUC Broadcast Groups. This determines which userspace process hears which
- * messages.  Mutliple transports may be used within a group, or multiple
- * groups may use the same transport.  Broadcast
- * groups need not be used if e.g. a UID is specified instead;
- * use group 0 to signify unicast.
- */
-#define KUC_GRP_HSM	   0x02
-#define KUC_GRP_MAX	   KUC_GRP_HSM
-
-/* Kernel methods */
-int libcfs_kkuc_msg_put(struct file *fp, void *payload);
-int libcfs_kkuc_group_put(int group, void *payload);
-int libcfs_kkuc_group_add(struct file *fp, int uid, int group,
-				 __u32 data);
-int libcfs_kkuc_group_rem(int uid, int group);
-int libcfs_kkuc_group_foreach(int group, libcfs_kkuc_cb_t cb_func,
-				     void *cb_arg);
-
-#define LK_FLG_STOP 0x01
-
-/* kernelcomm control structure, passed from userspace to kernel */
-typedef struct lustre_kernelcomm {
-	__u32 lk_wfd;
-	__u32 lk_rfd;
-	__u32 lk_uid;
-	__u32 lk_group;
-	__u32 lk_data;
-	__u32 lk_flags;
-} __packed lustre_kernelcomm;
-
-/* Userspace methods */
-int libcfs_ukuc_start(lustre_kernelcomm *l, int groups);
-int libcfs_ukuc_stop(lustre_kernelcomm *l);
-int libcfs_ukuc_msg_get(lustre_kernelcomm *l, char *buf, int maxsize,
-			       int transport);
-
-#endif /* __LIBCFS_KERNELCOMM_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h
deleted file mode 100644
index 978d3e2f16d3..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_prim.h
- *
- * General primitives.
- *
- */
-
-#ifndef __LIBCFS_PRIM_H__
-#define __LIBCFS_PRIM_H__
-
-/*
- * Timer
- */
-typedef  void (cfs_timer_func_t)(ulong_ptr_t);
-
-void add_wait_queue_exclusive_head(wait_queue_head_t *, wait_queue_t *);
-
-void cfs_init_timer(struct timer_list *t);
-void cfs_timer_init(struct timer_list *t, cfs_timer_func_t *func, void *arg);
-void cfs_timer_done(struct timer_list *t);
-void cfs_timer_arm(struct timer_list *t, unsigned long deadline);
-void cfs_timer_disarm(struct timer_list *t);
-int  cfs_timer_is_armed(struct timer_list *t);
-unsigned long cfs_timer_deadline(struct timer_list *t);
-
-/*
- * Memory
- */
-#ifndef memory_pressure_get
-#define memory_pressure_get() (0)
-#endif
-#ifndef memory_pressure_set
-#define memory_pressure_set() do {} while (0)
-#endif
-#ifndef memory_pressure_clr
-#define memory_pressure_clr() do {} while (0)
-#endif
-
-static inline int cfs_memory_pressure_get_and_set(void)
-{
-	int old = memory_pressure_get();
-
-	if (!old)
-		memory_pressure_set();
-	return old;
-}
-
-static inline void cfs_memory_pressure_restore(int old)
-{
-	if (old)
-		memory_pressure_set();
-	else
-		memory_pressure_clr();
-}
-#endif
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
deleted file mode 100644
index 9544860e3292..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
+++ /dev/null
@@ -1,462 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_private.h
- *
- * Various defines for libcfs.
- *
- */
-
-#ifndef __LIBCFS_PRIVATE_H__
-#define __LIBCFS_PRIVATE_H__
-
-#ifndef DEBUG_SUBSYSTEM
-# define DEBUG_SUBSYSTEM S_UNDEFINED
-#endif
-
-/*
- * When this is on, LASSERT macro includes check for assignment used instead
- * of equality check, but doesn't have unlikely(). Turn this on from time to
- * time to make test-builds. This shouldn't be on for production release.
- */
-#define LASSERT_CHECKED (0)
-
-#define LASSERTF(cond, fmt, ...)					\
-do {									\
-	if (unlikely(!(cond))) {					\
-		LIBCFS_DEBUG_MSG_DATA_DECL(__msg_data, D_EMERG, NULL);	\
-		libcfs_debug_msg(&__msg_data,				\
-				 "ASSERTION( %s ) failed: " fmt, #cond,	\
-				 ## __VA_ARGS__);			\
-		lbug_with_loc(&__msg_data);				\
-	}								\
-} while (0)
-
-#define LASSERT(cond) LASSERTF(cond, "\n")
-
-#ifdef CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK
-/**
- * This is for more expensive checks that one doesn't want to be enabled all
- * the time. LINVRNT() has to be explicitly enabled by
- * CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK option.
- */
-# define LINVRNT(exp) LASSERT(exp)
-#else
-# define LINVRNT(exp) ((void)sizeof !!(exp))
-#endif
-
-#define KLASSERT(e) LASSERT(e)
-
-void lbug_with_loc(struct libcfs_debug_msg_data *)__attribute__((noreturn));
-
-#define LBUG()							  \
-do {								    \
-	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_EMERG, NULL);	     \
-	lbug_with_loc(&msgdata);					\
-} while (0)
-
-#ifndef LIBCFS_VMALLOC_SIZE
-#define LIBCFS_VMALLOC_SIZE	(2 << PAGE_CACHE_SHIFT) /* 2 pages */
-#endif
-
-#define LIBCFS_ALLOC_PRE(size, mask)					    \
-do {									    \
-	LASSERT(!in_interrupt() ||					    \
-		((size) <= LIBCFS_VMALLOC_SIZE &&			    \
-		 ((mask) & __GFP_WAIT) == 0));				    \
-} while (0)
-
-#define LIBCFS_ALLOC_POST(ptr, size)					    \
-do {									    \
-	if (unlikely((ptr) == NULL)) {					    \
-		CERROR("LNET: out of memory at %s:%d (tried to alloc '"	    \
-		       #ptr "' = %d)\n", __FILE__, __LINE__, (int)(size));  \
-	} else {							    \
-		memset((ptr), 0, (size));				    \
-	}								    \
-} while (0)
-
-/**
- * allocate memory with GFP flags @mask
- */
-#define LIBCFS_ALLOC_GFP(ptr, size, mask)				    \
-do {									    \
-	LIBCFS_ALLOC_PRE((size), (mask));				    \
-	(ptr) = (size) <= LIBCFS_VMALLOC_SIZE ?				    \
-		kmalloc((size), (mask)) : vmalloc(size);	    \
-	LIBCFS_ALLOC_POST((ptr), (size));				    \
-} while (0)
-
-/**
- * default allocator
- */
-#define LIBCFS_ALLOC(ptr, size) \
-	LIBCFS_ALLOC_GFP(ptr, size, GFP_NOFS)
-
-/**
- * non-sleeping allocator
- */
-#define LIBCFS_ALLOC_ATOMIC(ptr, size) \
-	LIBCFS_ALLOC_GFP(ptr, size, GFP_ATOMIC)
-
-/**
- * allocate memory for specified CPU partition
- *   \a cptab != NULL, \a cpt is CPU partition id of \a cptab
- *   \a cptab == NULL, \a cpt is HW NUMA node id
- */
-#define LIBCFS_CPT_ALLOC_GFP(ptr, cptab, cpt, size, mask)		    \
-do {									    \
-	LIBCFS_ALLOC_PRE((size), (mask));				    \
-	(ptr) = (size) <= LIBCFS_VMALLOC_SIZE ?				    \
-		kmalloc_node((size), (mask), cfs_cpt_spread_node(cptab, cpt)) :\
-		vmalloc_node(size, cfs_cpt_spread_node(cptab, cpt));	    \
-	LIBCFS_ALLOC_POST((ptr), (size));				    \
-} while (0)
-
-/** default numa allocator */
-#define LIBCFS_CPT_ALLOC(ptr, cptab, cpt, size)				    \
-	LIBCFS_CPT_ALLOC_GFP(ptr, cptab, cpt, size, GFP_NOFS)
-
-#define LIBCFS_FREE(ptr, size)					  \
-do {								    \
-	int s = (size);						 \
-	if (unlikely((ptr) == NULL)) {				  \
-		CERROR("LIBCFS: free NULL '" #ptr "' (%d bytes) at "    \
-		       "%s:%d\n", s, __FILE__, __LINE__);	       \
-		break;						  \
-	}							       \
-	if (unlikely(s > LIBCFS_VMALLOC_SIZE))			  \
-		vfree(ptr);				    \
-	else							    \
-		kfree(ptr);					  \
-} while (0)
-
-/******************************************************************************/
-
-/* htonl hack - either this, or compile with -O2. Stupid byteorder/generic.h */
-#if defined(__GNUC__) && (__GNUC__ >= 2) && !defined(__OPTIMIZE__)
-#define ___htonl(x) __cpu_to_be32(x)
-#define ___htons(x) __cpu_to_be16(x)
-#define ___ntohl(x) __be32_to_cpu(x)
-#define ___ntohs(x) __be16_to_cpu(x)
-#define htonl(x) ___htonl(x)
-#define ntohl(x) ___ntohl(x)
-#define htons(x) ___htons(x)
-#define ntohs(x) ___ntohs(x)
-#endif
-
-void libcfs_run_upcall(char **argv);
-void libcfs_run_lbug_upcall(struct libcfs_debug_msg_data *);
-void libcfs_debug_dumplog(void);
-int libcfs_debug_init(unsigned long bufsize);
-int libcfs_debug_cleanup(void);
-int libcfs_debug_clear_buffer(void);
-int libcfs_debug_mark_buffer(const char *text);
-
-void libcfs_debug_set_level(unsigned int debug_level);
-
-/*
- * allocate per-cpu-partition data, returned value is an array of pointers,
- * variable can be indexed by CPU ID.
- *	cptable != NULL: size of array is number of CPU partitions
- *	cptable == NULL: size of array is number of HW cores
- */
-void *cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size);
-/*
- * destroy per-cpu-partition variable
- */
-void  cfs_percpt_free(void *vars);
-int   cfs_percpt_number(void *vars);
-void *cfs_percpt_current(void *vars);
-void *cfs_percpt_index(void *vars, int idx);
-
-#define cfs_percpt_for_each(var, i, vars)		\
-	for (i = 0; i < cfs_percpt_number(vars) &&	\
-		    ((var) = (vars)[i]) != NULL; i++)
-
-/*
- * allocate a variable array, returned value is an array of pointers.
- * Caller can specify length of array by count.
- */
-void *cfs_array_alloc(int count, unsigned int size);
-void  cfs_array_free(void *vars);
-
-#define LASSERT_ATOMIC_ENABLED	  (1)
-
-#if LASSERT_ATOMIC_ENABLED
-
-/** assert value of @a is equal to @v */
-#define LASSERT_ATOMIC_EQ(a, v)				 \
-do {							    \
-	LASSERTF(atomic_read(a) == v,		       \
-		 "value: %d\n", atomic_read((a)));	  \
-} while (0)
-
-/** assert value of @a is unequal to @v */
-#define LASSERT_ATOMIC_NE(a, v)				 \
-do {							    \
-	LASSERTF(atomic_read(a) != v,		       \
-		 "value: %d\n", atomic_read((a)));	  \
-} while (0)
-
-/** assert value of @a is little than @v */
-#define LASSERT_ATOMIC_LT(a, v)				 \
-do {							    \
-	LASSERTF(atomic_read(a) < v,			\
-		 "value: %d\n", atomic_read((a)));	  \
-} while (0)
-
-/** assert value of @a is little/equal to @v */
-#define LASSERT_ATOMIC_LE(a, v)				 \
-do {							    \
-	LASSERTF(atomic_read(a) <= v,		       \
-		 "value: %d\n", atomic_read((a)));	  \
-} while (0)
-
-/** assert value of @a is great than @v */
-#define LASSERT_ATOMIC_GT(a, v)				 \
-do {							    \
-	LASSERTF(atomic_read(a) > v,			\
-		 "value: %d\n", atomic_read((a)));	  \
-} while (0)
-
-/** assert value of @a is great/equal to @v */
-#define LASSERT_ATOMIC_GE(a, v)				 \
-do {							    \
-	LASSERTF(atomic_read(a) >= v,		       \
-		 "value: %d\n", atomic_read((a)));	  \
-} while (0)
-
-/** assert value of @a is great than @v1 and little than @v2 */
-#define LASSERT_ATOMIC_GT_LT(a, v1, v2)			 \
-do {							    \
-	int __v = atomic_read(a);			   \
-	LASSERTF(__v > v1 && __v < v2, "value: %d\n", __v);     \
-} while (0)
-
-/** assert value of @a is great than @v1 and little/equal to @v2 */
-#define LASSERT_ATOMIC_GT_LE(a, v1, v2)			 \
-do {							    \
-	int __v = atomic_read(a);			   \
-	LASSERTF(__v > v1 && __v <= v2, "value: %d\n", __v);    \
-} while (0)
-
-/** assert value of @a is great/equal to @v1 and little than @v2 */
-#define LASSERT_ATOMIC_GE_LT(a, v1, v2)			 \
-do {							    \
-	int __v = atomic_read(a);			   \
-	LASSERTF(__v >= v1 && __v < v2, "value: %d\n", __v);    \
-} while (0)
-
-/** assert value of @a is great/equal to @v1 and little/equal to @v2 */
-#define LASSERT_ATOMIC_GE_LE(a, v1, v2)			 \
-do {							    \
-	int __v = atomic_read(a);			   \
-	LASSERTF(__v >= v1 && __v <= v2, "value: %d\n", __v);   \
-} while (0)
-
-#else /* !LASSERT_ATOMIC_ENABLED */
-
-#define LASSERT_ATOMIC_EQ(a, v)		 do {} while (0)
-#define LASSERT_ATOMIC_NE(a, v)		 do {} while (0)
-#define LASSERT_ATOMIC_LT(a, v)		 do {} while (0)
-#define LASSERT_ATOMIC_LE(a, v)		 do {} while (0)
-#define LASSERT_ATOMIC_GT(a, v)		 do {} while (0)
-#define LASSERT_ATOMIC_GE(a, v)		 do {} while (0)
-#define LASSERT_ATOMIC_GT_LT(a, v1, v2)	 do {} while (0)
-#define LASSERT_ATOMIC_GT_LE(a, v1, v2)	 do {} while (0)
-#define LASSERT_ATOMIC_GE_LT(a, v1, v2)	 do {} while (0)
-#define LASSERT_ATOMIC_GE_LE(a, v1, v2)	 do {} while (0)
-
-#endif /* LASSERT_ATOMIC_ENABLED */
-
-#define LASSERT_ATOMIC_ZERO(a)		  LASSERT_ATOMIC_EQ(a, 0)
-#define LASSERT_ATOMIC_POS(a)		   LASSERT_ATOMIC_GT(a, 0)
-
-#define CFS_ALLOC_PTR(ptr)      LIBCFS_ALLOC(ptr, sizeof(*(ptr)))
-#define CFS_FREE_PTR(ptr)       LIBCFS_FREE(ptr, sizeof(*(ptr)))
-
-/*
- * percpu partition lock
- *
- * There are some use-cases like this in Lustre:
- * . each CPU partition has it's own private data which is frequently changed,
- *   and mostly by the local CPU partition.
- * . all CPU partitions share some global data, these data are rarely changed.
- *
- * LNet is typical example.
- * CPU partition lock is designed for this kind of use-cases:
- * . each CPU partition has it's own private lock
- * . change on private data just needs to take the private lock
- * . read on shared data just needs to take _any_ of private locks
- * . change on shared data needs to take _all_ private locks,
- *   which is slow and should be really rare.
- */
-
-enum {
-	CFS_PERCPT_LOCK_EX	= -1, /* negative */
-};
-
-struct cfs_percpt_lock {
-	/* cpu-partition-table for this lock */
-	struct cfs_cpt_table	*pcl_cptab;
-	/* exclusively locked */
-	unsigned int		pcl_locked;
-	/* private lock table */
-	spinlock_t		**pcl_locks;
-};
-
-/* return number of private locks */
-static inline int
-cfs_percpt_lock_num(struct cfs_percpt_lock *pcl)
-{
-	return cfs_cpt_number(pcl->pcl_cptab);
-}
-
-/*
- * create a cpu-partition lock based on CPU partition table \a cptab,
- * each private lock has extra \a psize bytes padding data
- */
-struct cfs_percpt_lock *cfs_percpt_lock_alloc(struct cfs_cpt_table *cptab);
-/* destroy a cpu-partition lock */
-void cfs_percpt_lock_free(struct cfs_percpt_lock *pcl);
-
-/* lock private lock \a index of \a pcl */
-void cfs_percpt_lock(struct cfs_percpt_lock *pcl, int index);
-/* unlock private lock \a index of \a pcl */
-void cfs_percpt_unlock(struct cfs_percpt_lock *pcl, int index);
-/* create percpt (atomic) refcount based on @cptab */
-atomic_t **cfs_percpt_atomic_alloc(struct cfs_cpt_table *cptab, int val);
-/* destroy percpt refcount */
-void cfs_percpt_atomic_free(atomic_t **refs);
-/* return sum of all percpu refs */
-int cfs_percpt_atomic_summary(atomic_t **refs);
-
-/** Compile-time assertion.
-
- * Check an invariant described by a constant expression at compile time by
- * forcing a compiler error if it does not hold.  \a cond must be a constant
- * expression as defined by the ISO C Standard:
- *
- *       6.8.4.2  The switch statement
- *       ....
- *       [#3] The expression of each case label shall be  an  integer
- *       constant   expression  and  no  two  of  the  case  constant
- *       expressions in the same switch statement shall have the same
- *       value  after  conversion...
- *
- */
-#define CLASSERT(cond) do {switch (42) {case (cond): case 0: break; } } while (0)
-
-/* max value for numeric network address */
-#define MAX_NUMERIC_VALUE 0xffffffff
-
-/* implication */
-#define ergo(a, b) (!(a) || (b))
-/* logical equivalence */
-#define equi(a, b) (!!(a) == !!(b))
-
-/* --------------------------------------------------------------------
- * Light-weight trace
- * Support for temporary event tracing with minimal Heisenberg effect.
- * -------------------------------------------------------------------- */
-
-struct libcfs_device_userstate {
-	int	   ldu_memhog_pages;
-	struct page   *ldu_memhog_root_page;
-};
-
-#define MKSTR(ptr) ((ptr)) ? (ptr) : ""
-
-static inline int cfs_size_round4(int val)
-{
-	return (val + 3) & (~0x3);
-}
-
-#ifndef HAVE_CFS_SIZE_ROUND
-static inline int cfs_size_round(int val)
-{
-	return (val + 7) & (~0x7);
-}
-
-#define HAVE_CFS_SIZE_ROUND
-#endif
-
-static inline int cfs_size_round16(int val)
-{
-	return (val + 0xf) & (~0xf);
-}
-
-static inline int cfs_size_round32(int val)
-{
-	return (val + 0x1f) & (~0x1f);
-}
-
-static inline int cfs_size_round0(int val)
-{
-	if (!val)
-		return 0;
-	return (val + 1 + 7) & (~0x7);
-}
-
-static inline size_t cfs_round_strlen(char *fset)
-{
-	return (size_t)cfs_size_round((int)strlen(fset) + 1);
-}
-
-#define LOGL(var, len, ptr)				       \
-do {							    \
-	if (var)						\
-		memcpy((char *)ptr, (const char *)var, len);    \
-	ptr += cfs_size_round(len);			     \
-} while (0)
-
-#define LOGU(var, len, ptr)				       \
-do {							    \
-	if (var)						\
-		memcpy((char *)var, (const char *)ptr, len);    \
-	ptr += cfs_size_round(len);			     \
-} while (0)
-
-#define LOGL0(var, len, ptr)			      \
-do {						    \
-	if (!len)				       \
-		break;				  \
-	memcpy((char *)ptr, (const char *)var, len);    \
-	*((char *)(ptr) + len) = 0;		     \
-	ptr += cfs_size_round(len + 1);		 \
-} while (0)
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
deleted file mode 100644
index 478e9582ff54..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_string.h
- *
- * Generic string manipulation functions.
- *
- * Author: Nathan Rutman <nathan.rutman@sun.com>
- */
-
-#ifndef __LIBCFS_STRING_H__
-#define __LIBCFS_STRING_H__
-
-/* libcfs_string.c */
-/* string comparison ignoring case */
-int cfs_strncasecmp(const char *s1, const char *s2, size_t n);
-/* Convert a text string to a bitmask */
-int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
-		 int *oldmask, int minmask, int allmask);
-/* trim leading and trailing space characters */
-char *cfs_firststr(char *str, size_t size);
-
-/**
- * Structure to represent NULL-less strings.
- */
-struct cfs_lstr {
-	char		*ls_str;
-	int		ls_len;
-};
-
-/*
- * Structure to represent \<range_expr\> token of the syntax.
- */
-struct cfs_range_expr {
-	/*
-	 * Link to cfs_expr_list::el_exprs.
-	 */
-	struct list_head	re_link;
-	__u32		re_lo;
-	__u32		re_hi;
-	__u32		re_stride;
-};
-
-struct cfs_expr_list {
-	struct list_head	el_link;
-	struct list_head	el_exprs;
-};
-
-char *cfs_trimwhite(char *str);
-int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res);
-int cfs_str2num_check(char *str, int nob, unsigned *num,
-		      unsigned min, unsigned max);
-int cfs_expr_list_match(__u32 value, struct cfs_expr_list *expr_list);
-int cfs_expr_list_values(struct cfs_expr_list *expr_list,
-			 int max, __u32 **values);
-static inline void
-cfs_expr_list_values_free(__u32 *values, int num)
-{
-	/* This array is allocated by LIBCFS_ALLOC(), so it shouldn't be freed
-	 * by OBD_FREE() if it's called by module other than libcfs & LNet,
-	 * otherwise we will see fake memory leak */
-	LIBCFS_FREE(values, num * sizeof(values[0]));
-}
-
-void cfs_expr_list_free(struct cfs_expr_list *expr_list);
-int cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
-			struct cfs_expr_list **elpp);
-void cfs_expr_list_free_list(struct list_head *list);
-int cfs_ip_addr_parse(char *str, int len, struct list_head *list);
-int cfs_ip_addr_match(__u32 addr, struct list_head *list);
-void cfs_ip_addr_free(struct list_head *list);
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_time.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_time.h
deleted file mode 100644
index 5de6da085712..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_time.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_time.h
- *
- * Time functions.
- *
- */
-
-#ifndef __LIBCFS_TIME_H__
-#define __LIBCFS_TIME_H__
-/*
- * generic time manipulation functions.
- */
-
-static inline unsigned long cfs_time_add(unsigned long t, long d)
-{
-	return (unsigned long)(t + d);
-}
-
-static inline unsigned long cfs_time_sub(unsigned long t1, unsigned long t2)
-{
-	return (unsigned long)(t1 - t2);
-}
-
-static inline int cfs_time_after(unsigned long t1, unsigned long t2)
-{
-	return time_before(t2, t1);
-}
-
-static inline int cfs_time_aftereq(unsigned long t1, unsigned long t2)
-{
-	return time_before_eq(t2, t1);
-}
-
-static inline unsigned long cfs_time_shift(int seconds)
-{
-	return cfs_time_add(cfs_time_current(), cfs_time_seconds(seconds));
-}
-
-static inline long cfs_timeval_sub(struct timeval *large, struct timeval *small,
-				   struct timeval *result)
-{
-	long r = (long)(
-		(large->tv_sec - small->tv_sec) * ONE_MILLION +
-		(large->tv_usec - small->tv_usec));
-	if (result != NULL) {
-		result->tv_usec = r % ONE_MILLION;
-		result->tv_sec = r / ONE_MILLION;
-	}
-	return r;
-}
-
-static inline void cfs_slow_warning(unsigned long now, int seconds, char *msg)
-{
-	if (cfs_time_after(cfs_time_current(),
-			   cfs_time_add(now, cfs_time_seconds(15))))
-		CERROR("slow %s "CFS_TIME_T" sec\n", msg,
-		       cfs_duration_sec(cfs_time_sub(cfs_time_current(), now)));
-}
-
-#define CFS_RATELIMIT(seconds)				  \
-({							      \
-	/*						      \
-	 * XXX nikita: non-portable initializer		 \
-	 */						     \
-	static time_t __next_message;		       \
-	int result;					     \
-								\
-	if (cfs_time_after(cfs_time_current(), __next_message)) \
-		result = 1;				     \
-	else {						  \
-		__next_message = cfs_time_shift(seconds);       \
-		result = 0;				     \
-	}						       \
-	result;						 \
-})
-
-/*
- * helper function similar to do_gettimeofday() of Linux kernel
- */
-static inline void cfs_fs_timeval(struct timeval *tv)
-{
-	struct timespec time;
-
-	cfs_fs_time_current(&time);
-	cfs_fs_time_usec(&time, tv);
-}
-
-/*
- * return valid time-out based on user supplied one. Currently we only check
- * that time-out is not shorted than allowed.
- */
-static inline long cfs_timeout_cap(long timeout)
-{
-	if (timeout < CFS_TICK)
-		timeout = CFS_TICK;
-	return timeout;
-}
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h
deleted file mode 100644
index 5cc64f327a87..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/libcfs_workitem.h
- *
- * Author: Isaac Huang  <he.h.huang@oracle.com>
- *	 Liang Zhen   <zhen.liang@sun.com>
- *
- * A workitems is deferred work with these semantics:
- * - a workitem always runs in thread context.
- * - a workitem can be concurrent with other workitems but is strictly
- *   serialized with respect to itself.
- * - no CPU affinity, a workitem does not necessarily run on the same CPU
- *   that schedules it. However, this might change in the future.
- * - if a workitem is scheduled again before it has a chance to run, it
- *   runs only once.
- * - if a workitem is scheduled while it runs, it runs again after it
- *   completes; this ensures that events occurring while other events are
- *   being processed receive due attention. This behavior also allows a
- *   workitem to reschedule itself.
- *
- * Usage notes:
- * - a workitem can sleep but it should be aware of how that sleep might
- *   affect others.
- * - a workitem runs inside a kernel thread so there's no user space to access.
- * - do not use a workitem if the scheduling latency can't be tolerated.
- *
- * When wi_action returns non-zero, it means the workitem has either been
- * freed or reused and workitem scheduler won't touch it any more.
- */
-
-#ifndef __LIBCFS_WORKITEM_H__
-#define __LIBCFS_WORKITEM_H__
-
-struct cfs_wi_sched;
-
-void cfs_wi_sched_destroy(struct cfs_wi_sched *);
-int cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab, int cpt,
-			int nthrs, struct cfs_wi_sched **);
-
-struct cfs_workitem;
-
-typedef int (*cfs_wi_action_t) (struct cfs_workitem *);
-typedef struct cfs_workitem {
-	/** chain on runq or rerunq */
-	struct list_head       wi_list;
-	/** working function */
-	cfs_wi_action_t  wi_action;
-	/** arg for working function */
-	void	    *wi_data;
-	/** in running */
-	unsigned short   wi_running:1;
-	/** scheduled */
-	unsigned short   wi_scheduled:1;
-} cfs_workitem_t;
-
-static inline void
-cfs_wi_init(cfs_workitem_t *wi, void *data, cfs_wi_action_t action)
-{
-	INIT_LIST_HEAD(&wi->wi_list);
-
-	wi->wi_running   = 0;
-	wi->wi_scheduled = 0;
-	wi->wi_data      = data;
-	wi->wi_action    = action;
-}
-
-void cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi);
-int  cfs_wi_deschedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi);
-void cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi);
-
-int  cfs_wi_startup(void);
-void cfs_wi_shutdown(void);
-
-/** # workitem scheduler loops before reschedule */
-#define CFS_WI_RESCHED    128
-
-#endif /* __LIBCFS_WORKITEM_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
deleted file mode 100644
index 3e2502a69bbd..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LIBCFS_LINUX_LIBCFS_H__
-#define __LIBCFS_LINUX_LIBCFS_H__
-
-#ifndef __LIBCFS_LIBCFS_H__
-#error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead
-#endif
-
-
-#include <linux/bitops.h>
-#include <linux/compiler.h>
-#include <linux/ctype.h>
-#include <linux/errno.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/highmem.h>
-#include <linux/interrupt.h>
-#include <linux/kallsyms.h>
-#include <linux/kernel.h>
-#include <linux/kmod.h>
-#include <linux/kthread.h>
-#include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/mm_inline.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/mutex.h>
-#include <linux/notifier.h>
-#include <linux/random.h>
-#include <linux/rbtree.h>
-#include <linux/rwsem.h>
-#include <linux/scatterlist.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/smp.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/time.h>
-#include <linux/timer.h>
-#include <linux/types.h>
-#include <linux/unistd.h>
-#include <linux/vmalloc.h>
-#include <net/sock.h>
-#include <linux/atomic.h>
-#include <asm/div64.h>
-#include <linux/timex.h>
-#include <linux/uaccess.h>
-#include <stdarg.h>
-#include "linux-cpu.h"
-#include "linux-time.h"
-#include "linux-mem.h"
-
-
-#define LUSTRE_TRACE_SIZE (THREAD_SIZE >> 5)
-
-#if !defined(__x86_64__)
-# ifdef __ia64__
-#  define CDEBUG_STACK() (THREAD_SIZE -				 \
-			  ((unsigned long)__builtin_dwarf_cfa() &       \
-			   (THREAD_SIZE - 1)))
-# else
-#  define CDEBUG_STACK() (THREAD_SIZE -				 \
-			  ((unsigned long)__builtin_frame_address(0) &  \
-			   (THREAD_SIZE - 1)))
-# endif /* __ia64__ */
-
-#define __CHECK_STACK(msgdata, mask, cdls)			      \
-do {								    \
-	if (unlikely(CDEBUG_STACK() > libcfs_stack)) {		  \
-		LIBCFS_DEBUG_MSG_DATA_INIT(msgdata, D_WARNING, NULL);   \
-		libcfs_stack = CDEBUG_STACK();			  \
-		libcfs_debug_msg(msgdata,			       \
-				 "maximum lustre stack %lu\n",	  \
-				 CDEBUG_STACK());		       \
-		(msgdata)->msg_mask = mask;			     \
-		(msgdata)->msg_cdls = cdls;			     \
-		dump_stack();					   \
-	      /*panic("LBUG");*/					\
-	}							       \
-} while (0)
-#define CFS_CHECK_STACK(msgdata, mask, cdls)  __CHECK_STACK(msgdata, mask, cdls)
-#else /* __x86_64__ */
-#define CFS_CHECK_STACK(msgdata, mask, cdls) do {} while (0)
-#define CDEBUG_STACK() (0L)
-#endif /* __x86_64__ */
-
-/* initial pid  */
-#define LUSTRE_LNET_PID	  12345
-
-#define __current_nesting_level() (0)
-
-/**
- * Platform specific declarations for cfs_curproc API (libcfs/curproc.h)
- *
- * Implementation is in linux-curproc.c
- */
-#define CFS_CURPROC_COMM_MAX (sizeof((struct task_struct *)0)->comm)
-
-#include <linux/capability.h>
-
-/* long integer with size equal to pointer */
-typedef unsigned long ulong_ptr_t;
-typedef long long_ptr_t;
-
-#ifndef WITH_WATCHDOG
-#define WITH_WATCHDOG
-#endif
-
-
-#endif /* _LINUX_LIBCFS_H */
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
deleted file mode 100644
index 520209f17173..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/linux/linux-mem.h
- *
- * Basic library routines.
- *
- * Author: liang@whamcloud.com
- */
-
-#ifndef __LIBCFS_LINUX_CPU_H__
-#define __LIBCFS_LINUX_CPU_H__
-
-#ifndef __LIBCFS_LIBCFS_H__
-#error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead
-#endif
-
-#include <linux/cpu.h>
-#include <linux/cpuset.h>
-#include <linux/topology.h>
-
-#ifdef CONFIG_SMP
-
-#define HAVE_LIBCFS_CPT
-
-/** virtual processing unit */
-struct cfs_cpu_partition {
-	/* CPUs mask for this partition */
-	cpumask_t			*cpt_cpumask;
-	/* nodes mask for this partition */
-	nodemask_t			*cpt_nodemask;
-	/* spread rotor for NUMA allocator */
-	unsigned			cpt_spread_rotor;
-};
-
-/** descriptor for CPU partitions */
-struct cfs_cpt_table {
-	/* version, reserved for hotplug */
-	unsigned			ctb_version;
-	/* spread rotor for NUMA allocator */
-	unsigned			ctb_spread_rotor;
-	/* # of CPU partitions */
-	unsigned			ctb_nparts;
-	/* partitions tables */
-	struct cfs_cpu_partition	*ctb_parts;
-	/* shadow HW CPU to CPU partition ID */
-	int				*ctb_cpu2cpt;
-	/* all cpus in this partition table */
-	cpumask_t			*ctb_cpumask;
-	/* all nodes in this partition table */
-	nodemask_t			*ctb_nodemask;
-};
-
-#endif /* CONFIG_SMP */
-#endif /* __LIBCFS_LINUX_CPU_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h
deleted file mode 100644
index 0f2fd79e5ec8..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/linux/linux-mem.h
- *
- * Basic library routines.
- */
-
-#ifndef __LIBCFS_LINUX_CFS_MEM_H__
-#define __LIBCFS_LINUX_CFS_MEM_H__
-
-#ifndef __LIBCFS_LIBCFS_H__
-#error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead
-#endif
-
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/pagemap.h>
-#include <linux/slab.h>
-#include <linux/memcontrol.h>
-#include <linux/mm_inline.h>
-
-#ifndef HAVE_LIBCFS_CPT
-/* Need this for cfs_cpt_table */
-#include "../libcfs_cpu.h"
-#endif
-
-#define CFS_PAGE_MASK		   (~((__u64)PAGE_CACHE_SIZE-1))
-#define page_index(p)       ((p)->index)
-
-#define memory_pressure_get() (current->flags & PF_MEMALLOC)
-#define memory_pressure_set() do { current->flags |= PF_MEMALLOC; } while (0)
-#define memory_pressure_clr() do { current->flags &= ~PF_MEMALLOC; } while (0)
-
-#if BITS_PER_LONG == 32
-/* limit to lowmem on 32-bit systems */
-#define NUM_CACHEPAGES \
-	min(totalram_pages, 1UL << (30 - PAGE_CACHE_SHIFT) * 3 / 4)
-#else
-#define NUM_CACHEPAGES totalram_pages
-#endif
-
-#define DECL_MMSPACE		mm_segment_t __oldfs
-#define MMSPACE_OPEN \
-	do { __oldfs = get_fs(); set_fs(get_ds()); } while (0)
-#define MMSPACE_CLOSE	       set_fs(__oldfs)
-
-#endif /* __LINUX_CFS_MEM_H__ */
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h
deleted file mode 100644
index 0fc490bac2b5..000000000000
--- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/include/libcfs/linux/linux-time.h
- *
- * Implementation of portable time API for Linux (kernel and user-level).
- *
- * Author: Nikita Danilov <nikita@clusterfs.com>
- */
-
-#ifndef __LIBCFS_LINUX_LINUX_TIME_H__
-#define __LIBCFS_LINUX_LINUX_TIME_H__
-
-#ifndef __LIBCFS_LIBCFS_H__
-#error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead
-#endif
-
-#define ONE_BILLION ((u_int64_t)1000000000)
-#define ONE_MILLION 1000000
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <asm/div64.h>
-
-/*
- * post 2.5 kernels.
- */
-
-#include <linux/jiffies.h>
-
-
-static inline void cfs_fs_time_usec(struct timespec *t, struct timeval *v)
-{
-	v->tv_sec  = t->tv_sec;
-	v->tv_usec = t->tv_nsec / 1000;
-}
-
-/*
- * Generic kernel stuff
- */
-
-static inline unsigned long cfs_time_current(void)
-{
-	return jiffies;
-}
-
-static inline void cfs_fs_time_current(struct timespec *t)
-{
-	*t = CURRENT_TIME;
-}
-
-static inline time_t cfs_fs_time_sec(struct timespec *t)
-{
-	return t->tv_sec;
-}
-
-static inline long cfs_time_seconds(int seconds)
-{
-	return ((long)seconds) * HZ;
-}
-
-static inline time_t cfs_duration_sec(long d)
-{
-	return d / HZ;
-}
-
-static inline void cfs_duration_usec(long d, struct timeval *s)
-{
-#if (BITS_PER_LONG == 32) && (HZ > 4096)
-	__u64 t;
-
-	s->tv_sec = d / HZ;
-	t = (d - (long)s->tv_sec * HZ) * ONE_MILLION;
-	do_div(t, HZ);
-	s->tv_usec = t;
-#else
-	s->tv_sec = d / HZ;
-	s->tv_usec = ((d - (long)s->tv_sec * HZ) * ONE_MILLION) / HZ;
-#endif
-}
-
-#define cfs_time_current_64 get_jiffies_64
-
-static inline __u64 cfs_time_add_64(__u64 t, __u64 d)
-{
-	return t + d;
-}
-
-static inline __u64 cfs_time_shift_64(int seconds)
-{
-	return cfs_time_add_64(cfs_time_current_64(),
-			       cfs_time_seconds(seconds));
-}
-
-static inline int cfs_time_before_64(__u64 t1, __u64 t2)
-{
-	return (__s64)t2 - (__s64)t1 > 0;
-}
-
-static inline int cfs_time_beforeq_64(__u64 t1, __u64 t2)
-{
-	return (__s64)t2 - (__s64)t1 >= 0;
-}
-
-/*
- * One jiffy
- */
-#define CFS_TICK		(1)
-
-#define CFS_TIME_T	      "%lu"
-#define CFS_DURATION_T	  "%ld"
-
-#endif /* __LIBCFS_LINUX_LINUX_TIME_H__ */
diff --git a/drivers/staging/lustre/include/linux/lnet/api.h b/drivers/staging/lustre/include/linux/lnet/api.h
deleted file mode 100644
index 9493d5e236c5..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/api.h
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011 - 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- */
-
-#ifndef __LNET_API_H__
-#define __LNET_API_H__
-
-/** \defgroup lnet LNet
- *
- * The Lustre Networking subsystem.
- *
- * LNet is an asynchronous message-passing API, which provides an unreliable
- * connectionless service that can't guarantee any order. It supports OFA IB,
- * TCP/IP, and Cray Interconnects, and routes between heterogeneous networks.
- *
- * @{
- */
-
-#include "../lnet/types.h"
-
-/** \defgroup lnet_init_fini Initialization and cleanup
- * The LNet must be properly initialized before any LNet calls can be made.
- * @{ */
-int LNetNIInit(lnet_pid_t requested_pid);
-int LNetNIFini(void);
-/** @} lnet_init_fini */
-
-/** \defgroup lnet_addr LNet addressing and basic types
- *
- * Addressing scheme and basic data types of LNet.
- *
- * The LNet API is memory-oriented, so LNet must be able to address not only
- * end-points but also memory region within a process address space.
- * An ::lnet_nid_t addresses an end-point. An ::lnet_pid_t identifies a process
- * in a node. A portal represents an opening in the address space of a
- * process. Match bits is criteria to identify a region of memory inside a
- * portal, and offset specifies an offset within the memory region.
- *
- * LNet creates a table of portals for each process during initialization.
- * This table has MAX_PORTALS entries and its size can't be dynamically
- * changed. A portal stays empty until the owning process starts to add
- * memory regions to it. A portal is sometimes called an index because
- * it's an entry in the portals table of a process.
- *
- * \see LNetMEAttach
- * @{ */
-int LNetGetId(unsigned int index, lnet_process_id_t *id);
-int LNetDist(lnet_nid_t nid, lnet_nid_t *srcnid, __u32 *order);
-void LNetSnprintHandle(char *str, int str_len, lnet_handle_any_t handle);
-
-/** @} lnet_addr */
-
-/** \defgroup lnet_me Match entries
- *
- * A match entry (abbreviated as ME) describes a set of criteria to accept
- * incoming requests.
- *
- * A portal is essentially a match list plus a set of attributes. A match
- * list is a chain of MEs. Each ME includes a pointer to a memory descriptor
- * and a set of match criteria. The match criteria can be used to reject
- * incoming requests based on process ID or the match bits provided in the
- * request. MEs can be dynamically inserted into a match list by LNetMEAttach()
- * and LNetMEInsert(), and removed from its list by LNetMEUnlink().
- * @{ */
-int LNetMEAttach(unsigned int      portal,
-		 lnet_process_id_t match_id_in,
-		 __u64		   match_bits_in,
-		 __u64		   ignore_bits_in,
-		 lnet_unlink_t     unlink_in,
-		 lnet_ins_pos_t    pos_in,
-		 lnet_handle_me_t *handle_out);
-
-int LNetMEInsert(lnet_handle_me_t  current_in,
-		 lnet_process_id_t match_id_in,
-		 __u64		   match_bits_in,
-		 __u64		   ignore_bits_in,
-		 lnet_unlink_t     unlink_in,
-		 lnet_ins_pos_t    position_in,
-		 lnet_handle_me_t *handle_out);
-
-int LNetMEUnlink(lnet_handle_me_t current_in);
-/** @} lnet_me */
-
-/** \defgroup lnet_md Memory descriptors
- *
- * A memory descriptor contains information about a region of a user's
- * memory (either in kernel or user space) and optionally points to an
- * event queue where information about the operations performed on the
- * memory descriptor are recorded. Memory descriptor is abbreviated as
- * MD and can be used interchangeably with the memory region it describes.
- *
- * The LNet API provides two operations to create MDs: LNetMDAttach()
- * and LNetMDBind(); one operation to unlink and release the resources
- * associated with a MD: LNetMDUnlink().
- * @{ */
-int LNetMDAttach(lnet_handle_me_t  current_in,
-		 lnet_md_t	   md_in,
-		 lnet_unlink_t     unlink_in,
-		 lnet_handle_md_t *handle_out);
-
-int LNetMDBind(lnet_md_t	   md_in,
-	       lnet_unlink_t       unlink_in,
-	       lnet_handle_md_t   *handle_out);
-
-int LNetMDUnlink(lnet_handle_md_t md_in);
-/** @} lnet_md */
-
-/** \defgroup lnet_eq Events and event queues
- *
- * Event queues (abbreviated as EQ) are used to log operations performed on
- * local MDs. In particular, they signal the completion of a data transmission
- * into or out of a MD. They can also be used to hold acknowledgments for
- * completed PUT operations and indicate when a MD has been unlinked. Multiple
- * MDs can share a single EQ. An EQ may have an optional event handler
- * associated with it. If an event handler exists, it will be run for each
- * event that is deposited into the EQ.
- *
- * In addition to the lnet_handle_eq_t, the LNet API defines two types
- * associated with events: The ::lnet_event_kind_t defines the kinds of events
- * that can be stored in an EQ. The lnet_event_t defines a structure that
- * holds the information about with an event.
- *
- * There are five functions for dealing with EQs: LNetEQAlloc() is used to
- * create an EQ and allocate the resources needed, while LNetEQFree()
- * releases these resources and free the EQ. LNetEQGet() retrieves the next
- * event from an EQ, and LNetEQWait() can be used to block a process until
- * an EQ has at least one event. LNetEQPoll() can be used to test or wait
- * on multiple EQs.
- * @{ */
-int LNetEQAlloc(unsigned int       count_in,
-		lnet_eq_handler_t  handler,
-		lnet_handle_eq_t  *handle_out);
-
-int LNetEQFree(lnet_handle_eq_t eventq_in);
-
-int LNetEQGet(lnet_handle_eq_t  eventq_in,
-	      lnet_event_t     *event_out);
-
-int LNetEQWait(lnet_handle_eq_t  eventq_in,
-	       lnet_event_t     *event_out);
-
-int LNetEQPoll(lnet_handle_eq_t *eventqs_in,
-	       int		 neq_in,
-	       int		 timeout_ms,
-	       lnet_event_t     *event_out,
-	       int		*which_eq_out);
-/** @} lnet_eq */
-
-/** \defgroup lnet_data Data movement operations
- *
- * The LNet API provides two data movement operations: LNetPut()
- * and LNetGet().
- * @{ */
-int LNetPut(lnet_nid_t	      self,
-	    lnet_handle_md_t  md_in,
-	    lnet_ack_req_t    ack_req_in,
-	    lnet_process_id_t target_in,
-	    unsigned int      portal_in,
-	    __u64	      match_bits_in,
-	    unsigned int      offset_in,
-	    __u64	      hdr_data_in);
-
-int LNetGet(lnet_nid_t	      self,
-	    lnet_handle_md_t  md_in,
-	    lnet_process_id_t target_in,
-	    unsigned int      portal_in,
-	    __u64	      match_bits_in,
-	    unsigned int      offset_in);
-/** @} lnet_data */
-
-/** \defgroup lnet_misc Miscellaneous operations.
- * Miscellaneous operations.
- * @{ */
-
-int LNetSetLazyPortal(int portal);
-int LNetClearLazyPortal(int portal);
-int LNetCtl(unsigned int cmd, void *arg);
-
-/** @} lnet_misc */
-
-/** @} lnet */
-#endif
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
deleted file mode 100644
index a9c9a077c77d..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
+++ /dev/null
@@ -1,688 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012 - 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- *
- * lnet/include/lnet/lib-lnet.h
- */
-
-#ifndef __LNET_LIB_LNET_H__
-#define __LNET_LIB_LNET_H__
-
-#include "../libcfs/libcfs.h"
-#include "api.h"
-#include "lnet.h"
-#include "lib-types.h"
-
-extern lnet_t	the_lnet;	/* THE network */
-
-#if (BITS_PER_LONG == 32)
-/* 2 CPTs, allowing more CPTs might make us under memory pressure */
-#define LNET_CPT_MAX_BITS	1
-
-#else /* 64-bit system */
-/*
- * 256 CPTs for thousands of CPUs, allowing more CPTs might make us
- * under risk of consuming all lh_cookie.
- */
-#define LNET_CPT_MAX_BITS	8
-#endif /* BITS_PER_LONG == 32 */
-
-/* max allowed CPT number */
-#define LNET_CPT_MAX		(1 << LNET_CPT_MAX_BITS)
-
-#define LNET_CPT_NUMBER		(the_lnet.ln_cpt_number)
-#define LNET_CPT_BITS		(the_lnet.ln_cpt_bits)
-#define LNET_CPT_MASK		((1ULL << LNET_CPT_BITS) - 1)
-
-/** exclusive lock */
-#define LNET_LOCK_EX		CFS_PERCPT_LOCK_EX
-
-static inline int lnet_is_wire_handle_none(lnet_handle_wire_t *wh)
-{
-	return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE &&
-		wh->wh_object_cookie == LNET_WIRE_HANDLE_COOKIE_NONE);
-}
-
-static inline int lnet_md_exhausted(lnet_libmd_t *md)
-{
-	return (md->md_threshold == 0 ||
-		((md->md_options & LNET_MD_MAX_SIZE) != 0 &&
-		 md->md_offset + md->md_max_size > md->md_length));
-}
-
-static inline int lnet_md_unlinkable(lnet_libmd_t *md)
-{
-	/* Should unlink md when its refcount is 0 and either:
-	 *  - md has been flagged for deletion (by auto unlink or
-	 *    LNetM[DE]Unlink, in the latter case md may not be exhausted).
-	 *  - auto unlink is on and md is exhausted.
-	 */
-	if (md->md_refcount != 0)
-		return 0;
-
-	if ((md->md_flags & LNET_MD_FLAG_ZOMBIE) != 0)
-		return 1;
-
-	return ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) != 0 &&
-		lnet_md_exhausted(md));
-}
-
-#define lnet_cpt_table()	(the_lnet.ln_cpt_table)
-#define lnet_cpt_current()	cfs_cpt_current(the_lnet.ln_cpt_table, 1)
-
-static inline int
-lnet_cpt_of_cookie(__u64 cookie)
-{
-	unsigned int cpt = (cookie >> LNET_COOKIE_TYPE_BITS) & LNET_CPT_MASK;
-
-	/* LNET_CPT_NUMBER doesn't have to be power2, which means we can
-	 * get illegal cpt from it's invalid cookie */
-	return cpt < LNET_CPT_NUMBER ? cpt : cpt % LNET_CPT_NUMBER;
-}
-
-static inline void
-lnet_res_lock(int cpt)
-{
-	cfs_percpt_lock(the_lnet.ln_res_lock, cpt);
-}
-
-static inline void
-lnet_res_unlock(int cpt)
-{
-	cfs_percpt_unlock(the_lnet.ln_res_lock, cpt);
-}
-
-static inline int
-lnet_res_lock_current(void)
-{
-	int cpt = lnet_cpt_current();
-
-	lnet_res_lock(cpt);
-	return cpt;
-}
-
-static inline void
-lnet_net_lock(int cpt)
-{
-	cfs_percpt_lock(the_lnet.ln_net_lock, cpt);
-}
-
-static inline void
-lnet_net_unlock(int cpt)
-{
-	cfs_percpt_unlock(the_lnet.ln_net_lock, cpt);
-}
-
-static inline int
-lnet_net_lock_current(void)
-{
-	int cpt = lnet_cpt_current();
-
-	lnet_net_lock(cpt);
-	return cpt;
-}
-
-#define LNET_LOCK()		lnet_net_lock(LNET_LOCK_EX)
-#define LNET_UNLOCK()		lnet_net_unlock(LNET_LOCK_EX)
-
-#define lnet_ptl_lock(ptl)	spin_lock(&(ptl)->ptl_lock)
-#define lnet_ptl_unlock(ptl)	spin_unlock(&(ptl)->ptl_lock)
-#define lnet_eq_wait_lock()	spin_lock(&the_lnet.ln_eq_wait_lock)
-#define lnet_eq_wait_unlock()	spin_unlock(&the_lnet.ln_eq_wait_lock)
-#define lnet_ni_lock(ni)	spin_lock(&(ni)->ni_lock)
-#define lnet_ni_unlock(ni)	spin_unlock(&(ni)->ni_lock)
-
-#define MAX_PORTALS		64
-
-static inline lnet_eq_t *
-lnet_eq_alloc(void)
-{
-	lnet_eq_t *eq;
-
-	LIBCFS_ALLOC(eq, sizeof(*eq));
-	return eq;
-}
-
-static inline void
-lnet_eq_free(lnet_eq_t *eq)
-{
-	LIBCFS_FREE(eq, sizeof(*eq));
-}
-
-static inline lnet_libmd_t *
-lnet_md_alloc(lnet_md_t *umd)
-{
-	lnet_libmd_t *md;
-	unsigned int size;
-	unsigned int niov;
-
-	if ((umd->options & LNET_MD_KIOV) != 0) {
-		niov = umd->length;
-		size = offsetof(lnet_libmd_t, md_iov.kiov[niov]);
-	} else {
-		niov = ((umd->options & LNET_MD_IOVEC) != 0) ?
-		       umd->length : 1;
-		size = offsetof(lnet_libmd_t, md_iov.iov[niov]);
-	}
-
-	LIBCFS_ALLOC(md, size);
-
-	if (md != NULL) {
-		/* Set here in case of early free */
-		md->md_options = umd->options;
-		md->md_niov = niov;
-		INIT_LIST_HEAD(&md->md_list);
-	}
-
-	return md;
-}
-
-static inline void
-lnet_md_free(lnet_libmd_t *md)
-{
-	unsigned int size;
-
-	if ((md->md_options & LNET_MD_KIOV) != 0)
-		size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]);
-	else
-		size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]);
-
-	LIBCFS_FREE(md, size);
-}
-
-static inline lnet_me_t *
-lnet_me_alloc(void)
-{
-	lnet_me_t *me;
-
-	LIBCFS_ALLOC(me, sizeof(*me));
-	return me;
-}
-
-static inline void
-lnet_me_free(lnet_me_t *me)
-{
-	LIBCFS_FREE(me, sizeof(*me));
-}
-
-static inline lnet_msg_t *
-lnet_msg_alloc(void)
-{
-	lnet_msg_t *msg;
-
-	LIBCFS_ALLOC(msg, sizeof(*msg));
-
-	/* no need to zero, LIBCFS_ALLOC does for us */
-	return msg;
-}
-
-static inline void
-lnet_msg_free(lnet_msg_t *msg)
-{
-	LASSERT(!msg->msg_onactivelist);
-	LIBCFS_FREE(msg, sizeof(*msg));
-}
-
-lnet_libhandle_t *lnet_res_lh_lookup(struct lnet_res_container *rec,
-				     __u64 cookie);
-void lnet_res_lh_initialize(struct lnet_res_container *rec,
-			    lnet_libhandle_t *lh);
-static inline void
-lnet_res_lh_invalidate(lnet_libhandle_t *lh)
-{
-	/* NB: cookie is still useful, don't reset it */
-	list_del(&lh->lh_hash_chain);
-}
-
-static inline void
-lnet_eq2handle(lnet_handle_eq_t *handle, lnet_eq_t *eq)
-{
-	if (eq == NULL) {
-		LNetInvalidateHandle(handle);
-		return;
-	}
-
-	handle->cookie = eq->eq_lh.lh_cookie;
-}
-
-static inline lnet_eq_t *
-lnet_handle2eq(lnet_handle_eq_t *handle)
-{
-	lnet_libhandle_t *lh;
-
-	lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie);
-	if (lh == NULL)
-		return NULL;
-
-	return lh_entry(lh, lnet_eq_t, eq_lh);
-}
-
-static inline void
-lnet_md2handle(lnet_handle_md_t *handle, lnet_libmd_t *md)
-{
-	handle->cookie = md->md_lh.lh_cookie;
-}
-
-static inline lnet_libmd_t *
-lnet_handle2md(lnet_handle_md_t *handle)
-{
-	/* ALWAYS called with resource lock held */
-	lnet_libhandle_t *lh;
-	int cpt;
-
-	cpt = lnet_cpt_of_cookie(handle->cookie);
-	lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
-				handle->cookie);
-	if (lh == NULL)
-		return NULL;
-
-	return lh_entry(lh, lnet_libmd_t, md_lh);
-}
-
-static inline lnet_libmd_t *
-lnet_wire_handle2md(lnet_handle_wire_t *wh)
-{
-	/* ALWAYS called with resource lock held */
-	lnet_libhandle_t *lh;
-	int cpt;
-
-	if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie)
-		return NULL;
-
-	cpt = lnet_cpt_of_cookie(wh->wh_object_cookie);
-	lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
-				wh->wh_object_cookie);
-	if (lh == NULL)
-		return NULL;
-
-	return lh_entry(lh, lnet_libmd_t, md_lh);
-}
-
-static inline void
-lnet_me2handle(lnet_handle_me_t *handle, lnet_me_t *me)
-{
-	handle->cookie = me->me_lh.lh_cookie;
-}
-
-static inline lnet_me_t *
-lnet_handle2me(lnet_handle_me_t *handle)
-{
-	/* ALWAYS called with resource lock held */
-	lnet_libhandle_t *lh;
-	int cpt;
-
-	cpt = lnet_cpt_of_cookie(handle->cookie);
-	lh = lnet_res_lh_lookup(the_lnet.ln_me_containers[cpt],
-				handle->cookie);
-	if (lh == NULL)
-		return NULL;
-
-	return lh_entry(lh, lnet_me_t, me_lh);
-}
-
-static inline void
-lnet_peer_addref_locked(lnet_peer_t *lp)
-{
-	LASSERT(lp->lp_refcount > 0);
-	lp->lp_refcount++;
-}
-
-void lnet_destroy_peer_locked(lnet_peer_t *lp);
-
-static inline void
-lnet_peer_decref_locked(lnet_peer_t *lp)
-{
-	LASSERT(lp->lp_refcount > 0);
-	lp->lp_refcount--;
-	if (lp->lp_refcount == 0)
-		lnet_destroy_peer_locked(lp);
-}
-
-static inline int
-lnet_isrouter(lnet_peer_t *lp)
-{
-	return lp->lp_rtr_refcount != 0;
-}
-
-static inline void
-lnet_ni_addref_locked(lnet_ni_t *ni, int cpt)
-{
-	LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
-	LASSERT(*ni->ni_refs[cpt] >= 0);
-
-	(*ni->ni_refs[cpt])++;
-}
-
-static inline void
-lnet_ni_addref(lnet_ni_t *ni)
-{
-	lnet_net_lock(0);
-	lnet_ni_addref_locked(ni, 0);
-	lnet_net_unlock(0);
-}
-
-static inline void
-lnet_ni_decref_locked(lnet_ni_t *ni, int cpt)
-{
-	LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
-	LASSERT(*ni->ni_refs[cpt] > 0);
-
-	(*ni->ni_refs[cpt])--;
-}
-
-static inline void
-lnet_ni_decref(lnet_ni_t *ni)
-{
-	lnet_net_lock(0);
-	lnet_ni_decref_locked(ni, 0);
-	lnet_net_unlock(0);
-}
-
-void lnet_ni_free(lnet_ni_t *ni);
-
-static inline int
-lnet_nid2peerhash(lnet_nid_t nid)
-{
-	return hash_long(nid, LNET_PEER_HASH_BITS);
-}
-
-static inline struct list_head *
-lnet_net2rnethash(__u32 net)
-{
-	return &the_lnet.ln_remote_nets_hash[(LNET_NETNUM(net) +
-		LNET_NETTYP(net)) &
-		((1U << the_lnet.ln_remote_nets_hbits) - 1)];
-}
-
-extern lnd_t the_lolnd;
-extern int avoid_asym_router_failure;
-
-int lnet_cpt_of_nid_locked(lnet_nid_t nid);
-int lnet_cpt_of_nid(lnet_nid_t nid);
-lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt);
-lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt);
-lnet_ni_t *lnet_net2ni(__u32 net);
-
-int lnet_init(void);
-void lnet_fini(void);
-
-int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, unsigned long when);
-void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive,
-			unsigned long when);
-int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid,
-		   unsigned int priority);
-int lnet_check_routes(void);
-int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
-void lnet_destroy_routes(void);
-int lnet_get_route(int idx, __u32 *net, __u32 *hops,
-		   lnet_nid_t *gateway, __u32 *alive, __u32 *priority);
-void lnet_proc_init(void);
-void lnet_proc_fini(void);
-int  lnet_rtrpools_alloc(int im_a_router);
-void lnet_rtrpools_free(void);
-lnet_remotenet_t *lnet_find_net_locked(__u32 net);
-
-int lnet_islocalnid(lnet_nid_t nid);
-int lnet_islocalnet(__u32 net);
-
-void lnet_msg_attach_md(lnet_msg_t *msg, lnet_libmd_t *md,
-			unsigned int offset, unsigned int mlen);
-void lnet_msg_detach_md(lnet_msg_t *msg, int status);
-void lnet_build_unlink_event(lnet_libmd_t *md, lnet_event_t *ev);
-void lnet_build_msg_event(lnet_msg_t *msg, lnet_event_kind_t ev_type);
-void lnet_msg_commit(lnet_msg_t *msg, int cpt);
-void lnet_msg_decommit(lnet_msg_t *msg, int cpt, int status);
-
-void lnet_eq_enqueue_event(lnet_eq_t *eq, lnet_event_t *ev);
-void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
-		    unsigned int offset, unsigned int len);
-int lnet_send(lnet_nid_t nid, lnet_msg_t *msg, lnet_nid_t rtr_nid);
-void lnet_return_tx_credits_locked(lnet_msg_t *msg);
-void lnet_return_rx_credits_locked(lnet_msg_t *msg);
-
-/* portals functions */
-/* portals attributes */
-static inline int
-lnet_ptl_is_lazy(lnet_portal_t *ptl)
-{
-	return !!(ptl->ptl_options & LNET_PTL_LAZY);
-}
-
-static inline int
-lnet_ptl_is_unique(lnet_portal_t *ptl)
-{
-	return !!(ptl->ptl_options & LNET_PTL_MATCH_UNIQUE);
-}
-
-static inline int
-lnet_ptl_is_wildcard(lnet_portal_t *ptl)
-{
-	return !!(ptl->ptl_options & LNET_PTL_MATCH_WILDCARD);
-}
-
-static inline void
-lnet_ptl_setopt(lnet_portal_t *ptl, int opt)
-{
-	ptl->ptl_options |= opt;
-}
-
-static inline void
-lnet_ptl_unsetopt(lnet_portal_t *ptl, int opt)
-{
-	ptl->ptl_options &= ~opt;
-}
-
-/* match-table functions */
-struct list_head *lnet_mt_match_head(struct lnet_match_table *mtable,
-				     lnet_process_id_t id, __u64 mbits);
-struct lnet_match_table *lnet_mt_of_attach(unsigned int index,
-					   lnet_process_id_t id, __u64 mbits,
-					   __u64 ignore_bits,
-					   lnet_ins_pos_t pos);
-int lnet_mt_match_md(struct lnet_match_table *mtable,
-		     struct lnet_match_info *info, struct lnet_msg *msg);
-
-/* portals match/attach functions */
-void lnet_ptl_attach_md(lnet_me_t *me, lnet_libmd_t *md,
-			struct list_head *matches, struct list_head *drops);
-void lnet_ptl_detach_md(lnet_me_t *me, lnet_libmd_t *md);
-int lnet_ptl_match_md(struct lnet_match_info *info, struct lnet_msg *msg);
-
-/* initialized and finalize portals */
-int lnet_portals_create(void);
-void lnet_portals_destroy(void);
-
-/* message functions */
-int lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr,
-	       lnet_nid_t fromnid, void *private, int rdma_req);
-void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
-	       unsigned int offset, unsigned int mlen, unsigned int rlen);
-lnet_msg_t *lnet_create_reply_msg(lnet_ni_t *ni, lnet_msg_t *get_msg);
-void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len);
-
-void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc);
-
-void lnet_drop_delayed_msg_list(struct list_head *head, char *reason);
-void lnet_recv_delayed_msg_list(struct list_head *head);
-
-int lnet_msg_container_setup(struct lnet_msg_container *container, int cpt);
-void lnet_msg_container_cleanup(struct lnet_msg_container *container);
-void lnet_msg_containers_destroy(void);
-int lnet_msg_containers_create(void);
-
-char *lnet_msgtyp2str(int type);
-void lnet_print_hdr(lnet_hdr_t *hdr);
-int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
-
-void lnet_counters_get(lnet_counters_t *counters);
-void lnet_counters_reset(void);
-
-unsigned int lnet_iov_nob(unsigned int niov, struct kvec *iov);
-int lnet_extract_iov(int dst_niov, struct kvec *dst,
-		     int src_niov, struct kvec *src,
-		      unsigned int offset, unsigned int len);
-
-unsigned int lnet_kiov_nob(unsigned int niov, lnet_kiov_t *iov);
-int lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
-		      int src_niov, lnet_kiov_t *src,
-		      unsigned int offset, unsigned int len);
-
-void lnet_copy_iov2iov(unsigned int ndiov, struct kvec *diov,
-		       unsigned int doffset,
-			unsigned int nsiov, struct kvec *siov,
-			unsigned int soffset, unsigned int nob);
-void lnet_copy_kiov2iov(unsigned int niov, struct kvec *iov,
-			unsigned int iovoffset,
-			 unsigned int nkiov, lnet_kiov_t *kiov,
-			 unsigned int kiovoffset, unsigned int nob);
-void lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov,
-			unsigned int kiovoffset,
-			 unsigned int niov, struct kvec *iov,
-			 unsigned int iovoffset, unsigned int nob);
-void lnet_copy_kiov2kiov(unsigned int ndkiov, lnet_kiov_t *dkiov,
-			 unsigned int doffset,
-			  unsigned int nskiov, lnet_kiov_t *skiov,
-			  unsigned int soffset, unsigned int nob);
-
-static inline void
-lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset,
-		   unsigned int nsiov, struct kvec *siov, unsigned int soffset,
-		   unsigned int nob)
-{
-	struct kvec diov = {/*.iov_base = */ dest, /*.iov_len = */ dlen};
-
-	lnet_copy_iov2iov(1, &diov, doffset,
-			  nsiov, siov, soffset, nob);
-}
-
-static inline void
-lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset,
-		    unsigned int nsiov, lnet_kiov_t *skiov,
-		    unsigned int soffset, unsigned int nob)
-{
-	struct kvec diov = {/* .iov_base = */ dest, /* .iov_len = */ dlen};
-
-	lnet_copy_kiov2iov(1, &diov, doffset,
-			   nsiov, skiov, soffset, nob);
-}
-
-static inline void
-lnet_copy_flat2iov(unsigned int ndiov, struct kvec *diov, unsigned int doffset,
-		   int slen, void *src, unsigned int soffset, unsigned int nob)
-{
-	struct kvec siov = {/*.iov_base = */ src, /*.iov_len = */slen};
-
-	lnet_copy_iov2iov(ndiov, diov, doffset,
-			  1, &siov, soffset, nob);
-}
-
-static inline void
-lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov,
-		    unsigned int doffset, int slen, void *src,
-		    unsigned int soffset, unsigned int nob)
-{
-	struct kvec siov = {/* .iov_base = */ src, /* .iov_len = */ slen};
-
-	lnet_copy_iov2kiov(ndiov, dkiov, doffset,
-			   1, &siov, soffset, nob);
-}
-
-void lnet_me_unlink(lnet_me_t *me);
-
-void lnet_md_unlink(lnet_libmd_t *md);
-void lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd);
-
-void lnet_register_lnd(lnd_t *lnd);
-void lnet_unregister_lnd(lnd_t *lnd);
-
-int lnet_connect(struct socket **sockp, lnet_nid_t peer_nid,
-		 __u32 local_ip, __u32 peer_ip, int peer_port);
-void lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
-				__u32 peer_ip, int port);
-int lnet_count_acceptor_nis(void);
-int lnet_acceptor_timeout(void);
-int lnet_acceptor_port(void);
-
-int lnet_count_acceptor_nis(void);
-int lnet_acceptor_port(void);
-
-int lnet_acceptor_start(void);
-void lnet_acceptor_stop(void);
-
-int lnet_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask);
-int lnet_ipif_enumerate(char ***names);
-void lnet_ipif_free_enumeration(char **names, int n);
-int lnet_sock_setbuf(struct socket *socket, int txbufsize, int rxbufsize);
-int lnet_sock_getbuf(struct socket *socket, int *txbufsize, int *rxbufsize);
-int lnet_sock_getaddr(struct socket *socket, bool remote, __u32 *ip, int *port);
-int lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout);
-int lnet_sock_read(struct socket *sock, void *buffer, int nob, int timeout);
-
-int lnet_sock_listen(struct socket **sockp, __u32 ip, int port, int backlog);
-int lnet_sock_accept(struct socket **newsockp, struct socket *sock);
-int lnet_sock_connect(struct socket **sockp, int *fatal,
-		      __u32 local_ip, int local_port,
-		      __u32 peer_ip, int peer_port);
-void libcfs_sock_release(struct socket *sock);
-
-int lnet_peers_start_down(void);
-int lnet_peer_buffer_credits(lnet_ni_t *ni);
-
-int lnet_router_checker_start(void);
-void lnet_router_checker_stop(void);
-void lnet_router_ni_update_locked(lnet_peer_t *gw, __u32 net);
-void lnet_swap_pinginfo(lnet_ping_info_t *info);
-
-int lnet_ping_target_init(void);
-void lnet_ping_target_fini(void);
-int lnet_ping(lnet_process_id_t id, int timeout_ms,
-	      lnet_process_id_t *ids, int n_ids);
-
-int lnet_parse_ip2nets(char **networksp, char *ip2nets);
-int lnet_parse_routes(char *route_str, int *im_a_router);
-int lnet_parse_networks(struct list_head *nilist, char *networks);
-
-int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt);
-lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable,
-				   lnet_nid_t nid);
-void lnet_peer_tables_cleanup(void);
-void lnet_peer_tables_destroy(void);
-int lnet_peer_tables_create(void);
-void lnet_debug_peer(lnet_nid_t nid);
-
-static inline void
-lnet_peer_set_alive(lnet_peer_t *lp)
-{
-	lp->lp_last_alive = lp->lp_last_query = get_seconds();
-	if (!lp->lp_alive)
-		lnet_notify_locked(lp, 0, 1, lp->lp_last_alive);
-}
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-types.h b/drivers/staging/lustre/include/linux/lnet/lib-types.h
deleted file mode 100644
index 81a63dbdea25..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/lib-types.h
+++ /dev/null
@@ -1,611 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012 - 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- *
- * lnet/include/lnet/lib-types.h
- */
-
-#ifndef __LNET_LIB_TYPES_H__
-#define __LNET_LIB_TYPES_H__
-
-#include <linux/kthread.h>
-#include <linux/uio.h>
-#include <linux/types.h>
-#include <net/sock.h>
-
-#include "types.h"
-
-/* Max payload size */
-#define LNET_MAX_PAYLOAD      CONFIG_LNET_MAX_PAYLOAD
-#if (LNET_MAX_PAYLOAD < LNET_MTU)
-# error "LNET_MAX_PAYLOAD too small - error in configure --with-max-payload-mb"
-#elif (LNET_MAX_PAYLOAD > (PAGE_SIZE * LNET_MAX_IOV))
-# error "LNET_MAX_PAYLOAD too large - error in configure --with-max-payload-mb"
-#endif
-
-/* forward refs */
-struct lnet_libmd;
-
-typedef struct lnet_msg {
-	struct list_head	msg_activelist;
-	struct list_head	msg_list;	   /* Q for credits/MD */
-
-	lnet_process_id_t	msg_target;
-	/* where is it from, it's only for building event */
-	lnet_nid_t		msg_from;
-	__u32			msg_type;
-
-	/* committed for sending */
-	unsigned int		msg_tx_committed:1;
-	/* CPT # this message committed for sending */
-	unsigned int		msg_tx_cpt:15;
-	/* committed for receiving */
-	unsigned int		msg_rx_committed:1;
-	/* CPT # this message committed for receiving */
-	unsigned int		msg_rx_cpt:15;
-	/* queued for tx credit */
-	unsigned int		msg_tx_delayed:1;
-	/* queued for RX buffer */
-	unsigned int		msg_rx_delayed:1;
-	/* ready for pending on RX delay list */
-	unsigned int		msg_rx_ready_delay:1;
-
-	unsigned int	msg_vmflush:1;		/* VM trying to free memory */
-	unsigned int	msg_target_is_router:1; /* sending to a router */
-	unsigned int	msg_routing:1;		/* being forwarded */
-	unsigned int	msg_ack:1;		/* ack on finalize (PUT) */
-	unsigned int	msg_sending:1;		/* outgoing message */
-	unsigned int	msg_receiving:1;	/* being received */
-	unsigned int	msg_txcredit:1;		/* taken an NI send credit */
-	unsigned int	msg_peertxcredit:1;	/* taken a peer send credit */
-	unsigned int	msg_rtrcredit:1;	/* taken a global
-						   router credit */
-	unsigned int	msg_peerrtrcredit:1;	/* taken a peer router credit */
-	unsigned int	msg_onactivelist:1;	/* on the activelist */
-
-	struct lnet_peer	*msg_txpeer;	 /* peer I'm sending to */
-	struct lnet_peer	*msg_rxpeer;	 /* peer I received from */
-
-	void			*msg_private;
-	struct lnet_libmd	*msg_md;
-
-	unsigned int		 msg_len;
-	unsigned int		 msg_wanted;
-	unsigned int		 msg_offset;
-	unsigned int		 msg_niov;
-	struct kvec		*msg_iov;
-	lnet_kiov_t		*msg_kiov;
-
-	lnet_event_t		 msg_ev;
-	lnet_hdr_t		 msg_hdr;
-} lnet_msg_t;
-
-typedef struct lnet_libhandle {
-	struct list_head	lh_hash_chain;
-	__u64			lh_cookie;
-} lnet_libhandle_t;
-
-#define lh_entry(ptr, type, member) \
-	((type *)((char *)(ptr)-(char *)(&((type *)0)->member)))
-
-typedef struct lnet_eq {
-	struct list_head	  eq_list;
-	lnet_libhandle_t	  eq_lh;
-	lnet_seq_t		  eq_enq_seq;
-	lnet_seq_t		  eq_deq_seq;
-	unsigned int		  eq_size;
-	lnet_eq_handler_t	  eq_callback;
-	lnet_event_t		 *eq_events;
-	int			**eq_refs;	/* percpt refcount for EQ */
-} lnet_eq_t;
-
-typedef struct lnet_me {
-	struct list_head	 me_list;
-	lnet_libhandle_t	 me_lh;
-	lnet_process_id_t	 me_match_id;
-	unsigned int		 me_portal;
-	unsigned int		 me_pos;	/* hash offset in mt_hash */
-	__u64			 me_match_bits;
-	__u64			 me_ignore_bits;
-	lnet_unlink_t		 me_unlink;
-	struct lnet_libmd	*me_md;
-} lnet_me_t;
-
-typedef struct lnet_libmd {
-	struct list_head	 md_list;
-	lnet_libhandle_t	 md_lh;
-	lnet_me_t		*md_me;
-	char			*md_start;
-	unsigned int		 md_offset;
-	unsigned int		 md_length;
-	unsigned int		 md_max_size;
-	int			 md_threshold;
-	int			 md_refcount;
-	unsigned int		 md_options;
-	unsigned int		 md_flags;
-	void			*md_user_ptr;
-	lnet_eq_t		*md_eq;
-	unsigned int		 md_niov;	/* # frags */
-	union {
-		struct kvec	iov[LNET_MAX_IOV];
-		lnet_kiov_t	kiov[LNET_MAX_IOV];
-	} md_iov;
-} lnet_libmd_t;
-
-#define LNET_MD_FLAG_ZOMBIE		(1 << 0)
-#define LNET_MD_FLAG_AUTO_UNLINK	(1 << 1)
-#define LNET_MD_FLAG_ABORTED		(1 << 2)
-
-typedef struct {
-	/* info about peers we are trying to fail */
-	struct list_head	tp_list;	/* ln_test_peers */
-	lnet_nid_t		tp_nid;		/* matching nid */
-	unsigned int		tp_threshold;	/* # failures to simulate */
-} lnet_test_peer_t;
-
-#define LNET_COOKIE_TYPE_MD	1
-#define LNET_COOKIE_TYPE_ME	2
-#define LNET_COOKIE_TYPE_EQ	3
-#define LNET_COOKIE_TYPE_BITS	2
-#define LNET_COOKIE_MASK	((1ULL << LNET_COOKIE_TYPE_BITS) - 1ULL)
-
-struct lnet_ni;			/* forward ref */
-
-typedef struct lnet_lnd {
-	/* fields managed by portals */
-	struct list_head	lnd_list;	/* stash in the LND table */
-	int			lnd_refcount;	/* # active instances */
-
-	/* fields initialised by the LND */
-	__u32			lnd_type;
-
-	int  (*lnd_startup)(struct lnet_ni *ni);
-	void (*lnd_shutdown)(struct lnet_ni *ni);
-	int  (*lnd_ctl)(struct lnet_ni *ni, unsigned int cmd, void *arg);
-
-	/* In data movement APIs below, payload buffers are described as a set
-	 * of 'niov' fragments which are...
-	 * EITHER
-	 *    in virtual memory (struct iovec *iov != NULL)
-	 * OR
-	 *    in pages (kernel only: plt_kiov_t *kiov != NULL).
-	 * The LND may NOT overwrite these fragment descriptors.
-	 * An 'offset' and may specify a byte offset within the set of
-	 * fragments to start from
-	 */
-
-	/* Start sending a preformatted message.  'private' is NULL for PUT and
-	 * GET messages; otherwise this is a response to an incoming message
-	 * and 'private' is the 'private' passed to lnet_parse().  Return
-	 * non-zero for immediate failure, otherwise complete later with
-	 * lnet_finalize() */
-	int (*lnd_send)(struct lnet_ni *ni, void *private, lnet_msg_t *msg);
-
-	/* Start receiving 'mlen' bytes of payload data, skipping the following
-	 * 'rlen' - 'mlen' bytes. 'private' is the 'private' passed to
-	 * lnet_parse().  Return non-zero for immediate failure, otherwise
-	 * complete later with lnet_finalize().  This also gives back a receive
-	 * credit if the LND does flow control. */
-	int (*lnd_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
-			int delayed, unsigned int niov,
-			struct kvec *iov, lnet_kiov_t *kiov,
-			unsigned int offset, unsigned int mlen,
-			unsigned int rlen);
-
-	/* lnet_parse() has had to delay processing of this message
-	 * (e.g. waiting for a forwarding buffer or send credits).  Give the
-	 * LND a chance to free urgently needed resources.  If called, return 0
-	 * for success and do NOT give back a receive credit; that has to wait
-	 * until lnd_recv() gets called.  On failure return < 0 and
-	 * release resources; lnd_recv() will not be called. */
-	int (*lnd_eager_recv)(struct lnet_ni *ni, void *private,
-			      lnet_msg_t *msg, void **new_privatep);
-
-	/* notification of peer health */
-	void (*lnd_notify)(struct lnet_ni *ni, lnet_nid_t peer, int alive);
-
-	/* query of peer aliveness */
-	void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer,
-			  unsigned long *when);
-
-	/* accept a new connection */
-	int (*lnd_accept)(struct lnet_ni *ni, struct socket *sock);
-} lnd_t;
-
-struct lnet_tx_queue {
-	int			tq_credits;	/* # tx credits free */
-	int			tq_credits_min;	/* lowest it's been */
-	int			tq_credits_max;	/* total # tx credits */
-	struct list_head	tq_delayed;	/* delayed TXs */
-};
-
-typedef struct lnet_ni {
-	spinlock_t		  ni_lock;
-	struct list_head	  ni_list;	/* chain on ln_nis */
-	struct list_head	  ni_cptlist;	/* chain on ln_nis_cpt */
-	int			  ni_maxtxcredits; /* # tx credits  */
-	/* # per-peer send credits */
-	int			  ni_peertxcredits;
-	/* # per-peer router buffer credits */
-	int			  ni_peerrtrcredits;
-	/* seconds to consider peer dead */
-	int			  ni_peertimeout;
-	int			  ni_ncpts;	/* number of CPTs */
-	__u32			 *ni_cpts;	/* bond NI on some CPTs */
-	lnet_nid_t		  ni_nid;	/* interface's NID */
-	void			 *ni_data;	/* instance-specific data */
-	lnd_t			 *ni_lnd;	/* procedural interface */
-	struct lnet_tx_queue	**ni_tx_queues;	/* percpt TX queues */
-	int			**ni_refs;	/* percpt reference count */
-	long			  ni_last_alive;/* when I was last alive */
-	lnet_ni_status_t	 *ni_status;	/* my health status */
-	/* equivalent interfaces to use */
-	char			 *ni_interfaces[LNET_MAX_INTERFACES];
-} lnet_ni_t;
-
-#define LNET_PROTO_PING_MATCHBITS	0x8000000000000000LL
-
-/* NB: value of these features equal to LNET_PROTO_PING_VERSION_x
- * of old LNet, so there shouldn't be any compatibility issue */
-#define LNET_PING_FEAT_INVAL		(0)		/* no feature */
-#define LNET_PING_FEAT_BASE		(1 << 0)	/* just a ping */
-#define LNET_PING_FEAT_NI_STATUS	(1 << 1)	/* return NI status */
-
-#define LNET_PING_FEAT_MASK		(LNET_PING_FEAT_BASE | \
-					 LNET_PING_FEAT_NI_STATUS)
-
-/* router checker data, per router */
-#define LNET_MAX_RTR_NIS   16
-#define LNET_PINGINFO_SIZE offsetof(lnet_ping_info_t, pi_ni[LNET_MAX_RTR_NIS])
-typedef struct {
-	/* chain on the_lnet.ln_zombie_rcd or ln_deathrow_rcd */
-	struct list_head	 rcd_list;
-	lnet_handle_md_t	 rcd_mdh;	/* ping buffer MD */
-	struct lnet_peer	*rcd_gateway;	/* reference to gateway */
-	lnet_ping_info_t	*rcd_pinginfo;	/* ping buffer */
-} lnet_rc_data_t;
-
-typedef struct lnet_peer {
-	struct list_head	 lp_hashlist;	/* chain on peer hash */
-	struct list_head	 lp_txq;	/* messages blocking for
-						   tx credits */
-	struct list_head	 lp_rtrq;	/* messages blocking for
-						   router credits */
-	struct list_head	 lp_rtr_list;	/* chain on router list */
-	int			 lp_txcredits;	/* # tx credits available */
-	int			 lp_mintxcredits;  /* low water mark */
-	int			 lp_rtrcredits;	   /* # router credits */
-	int			 lp_minrtrcredits; /* low water mark */
-	unsigned int		 lp_alive:1;	   /* alive/dead? */
-	unsigned int		 lp_notify:1;	/* notification outstanding? */
-	unsigned int		 lp_notifylnd:1;/* outstanding notification
-						   for LND? */
-	unsigned int		 lp_notifying:1; /* some thread is handling
-						    notification */
-	unsigned int		 lp_ping_notsent;/* SEND event outstanding
-						    from ping */
-	int			 lp_alive_count; /* # times router went
-						    dead<->alive */
-	long			 lp_txqnob;	 /* bytes queued for sending */
-	unsigned long		 lp_timestamp;	 /* time of last aliveness
-						    news */
-	unsigned long		 lp_ping_timestamp;/* time of last ping
-						      attempt */
-	unsigned long		 lp_ping_deadline; /* != 0 if ping reply
-						      expected */
-	unsigned long		 lp_last_alive;	/* when I was last alive */
-	unsigned long		 lp_last_query;	/* when lp_ni was queried
-						   last time */
-	lnet_ni_t		*lp_ni;		/* interface peer is on */
-	lnet_nid_t		 lp_nid;	/* peer's NID */
-	int			 lp_refcount;	/* # refs */
-	int			 lp_cpt;	/* CPT this peer attached on */
-	/* # refs from lnet_route_t::lr_gateway */
-	int			 lp_rtr_refcount;
-	/* returned RC ping features */
-	unsigned int		 lp_ping_feats;
-	struct list_head	 lp_routes;	/* routers on this peer */
-	lnet_rc_data_t		*lp_rcd;	/* router checker state */
-} lnet_peer_t;
-
-/* peer hash size */
-#define LNET_PEER_HASH_BITS	9
-#define LNET_PEER_HASH_SIZE	(1 << LNET_PEER_HASH_BITS)
-
-/* peer hash table */
-struct lnet_peer_table {
-	int			 pt_version;	/* /proc validity stamp */
-	int			 pt_number;	/* # peers extant */
-	struct list_head	 pt_deathrow;	/* zombie peers */
-	struct list_head	*pt_hash;	/* NID->peer hash */
-};
-
-/* peer aliveness is enabled only on routers for peers in a network where the
- * lnet_ni_t::ni_peertimeout has been set to a positive value */
-#define lnet_peer_aliveness_enabled(lp) (the_lnet.ln_routing != 0 && \
-					 (lp)->lp_ni->ni_peertimeout > 0)
-
-typedef struct {
-	struct list_head	 lr_list;	/* chain on net */
-	struct list_head	 lr_gwlist;	/* chain on gateway */
-	lnet_peer_t		*lr_gateway;	/* router node */
-	__u32			 lr_net;	/* remote network number */
-	int			 lr_seq;	/* sequence for round-robin */
-	unsigned int		 lr_downis;	/* number of down NIs */
-	unsigned int		 lr_hops;	/* how far I am */
-	unsigned int             lr_priority;	/* route priority */
-} lnet_route_t;
-
-#define LNET_REMOTE_NETS_HASH_DEFAULT	(1U << 7)
-#define LNET_REMOTE_NETS_HASH_MAX	(1U << 16)
-#define LNET_REMOTE_NETS_HASH_SIZE	(1 << the_lnet.ln_remote_nets_hbits)
-
-typedef struct {
-	struct list_head	lrn_list;	/* chain on
-						   ln_remote_nets_hash */
-	struct list_head	lrn_routes;	/* routes to me */
-	__u32			lrn_net;	/* my net number */
-} lnet_remotenet_t;
-
-/** lnet message has credit and can be submitted to lnd for send/receive */
-#define LNET_CREDIT_OK		0
-/** lnet message is waiting for credit */
-#define LNET_CREDIT_WAIT	1
-
-typedef struct {
-	struct list_head	rbp_bufs;	/* my free buffer pool */
-	struct list_head	rbp_msgs;	/* messages blocking
-						   for a buffer */
-	int			rbp_npages;	/* # pages in each buffer */
-	int			rbp_nbuffers;	/* # buffers */
-	int			rbp_credits;	/* # free buffers /
-						     blocked messages */
-	int			rbp_mincredits;	/* low water mark */
-} lnet_rtrbufpool_t;
-
-typedef struct {
-	struct list_head	 rb_list;	/* chain on rbp_bufs */
-	lnet_rtrbufpool_t	*rb_pool;	/* owning pool */
-	lnet_kiov_t		 rb_kiov[0];	/* the buffer space */
-} lnet_rtrbuf_t;
-
-#define LNET_PEER_HASHSIZE	503	/* prime! */
-
-#define LNET_NRBPOOLS		3	/* # different router buffer pools */
-
-enum {
-	/* Didn't match anything */
-	LNET_MATCHMD_NONE	= (1 << 0),
-	/* Matched OK */
-	LNET_MATCHMD_OK		= (1 << 1),
-	/* Must be discarded */
-	LNET_MATCHMD_DROP	= (1 << 2),
-	/* match and buffer is exhausted */
-	LNET_MATCHMD_EXHAUSTED	= (1 << 3),
-	/* match or drop */
-	LNET_MATCHMD_FINISH	= (LNET_MATCHMD_OK | LNET_MATCHMD_DROP),
-};
-
-/* Options for lnet_portal_t::ptl_options */
-#define LNET_PTL_LAZY		(1 << 0)
-#define LNET_PTL_MATCH_UNIQUE	(1 << 1)	/* unique match, for RDMA */
-#define LNET_PTL_MATCH_WILDCARD	(1 << 2)	/* wildcard match,
-						   request portal */
-
-/* parameter for matching operations (GET, PUT) */
-struct lnet_match_info {
-	__u64			mi_mbits;
-	lnet_process_id_t	mi_id;
-	unsigned int		mi_opc;
-	unsigned int		mi_portal;
-	unsigned int		mi_rlength;
-	unsigned int		mi_roffset;
-};
-
-/* ME hash of RDMA portal */
-#define LNET_MT_HASH_BITS		8
-#define LNET_MT_HASH_SIZE		(1 << LNET_MT_HASH_BITS)
-#define LNET_MT_HASH_MASK		(LNET_MT_HASH_SIZE - 1)
-/* we allocate (LNET_MT_HASH_SIZE + 1) entries for lnet_match_table::mt_hash,
- * the last entry is reserved for MEs with ignore-bits */
-#define LNET_MT_HASH_IGNORE		LNET_MT_HASH_SIZE
-/* __u64 has 2^6 bits, so need 2^(LNET_MT_HASH_BITS - LNET_MT_BITS_U64) which
- * is 4 __u64s as bit-map, and add an extra __u64 (only use one bit) for the
- * ME-list with ignore-bits, which is mtable::mt_hash[LNET_MT_HASH_IGNORE] */
-#define LNET_MT_BITS_U64		6	/* 2^6 bits */
-#define LNET_MT_EXHAUSTED_BITS		(LNET_MT_HASH_BITS - LNET_MT_BITS_U64)
-#define LNET_MT_EXHAUSTED_BMAP		((1 << LNET_MT_EXHAUSTED_BITS) + 1)
-
-/* portal match table */
-struct lnet_match_table {
-	/* reserved for upcoming patches, CPU partition ID */
-	unsigned int		 mt_cpt;
-	unsigned int		 mt_portal;	/* portal index */
-	/* match table is set as "enabled" if there's non-exhausted MD
-	 * attached on mt_mhash, it's only valid for wildcard portal */
-	unsigned int		 mt_enabled;
-	/* bitmap to flag whether MEs on mt_hash are exhausted or not */
-	__u64			 mt_exhausted[LNET_MT_EXHAUSTED_BMAP];
-	struct list_head	*mt_mhash;	/* matching hash */
-};
-
-/* these are only useful for wildcard portal */
-/* Turn off message rotor for wildcard portals */
-#define	LNET_PTL_ROTOR_OFF	0
-/* round-robin dispatch all PUT messages for wildcard portals */
-#define	LNET_PTL_ROTOR_ON	1
-/* round-robin dispatch routed PUT message for wildcard portals */
-#define	LNET_PTL_ROTOR_RR_RT	2
-/* dispatch routed PUT message by hashing source NID for wildcard portals */
-#define	LNET_PTL_ROTOR_HASH_RT	3
-
-typedef struct lnet_portal {
-	spinlock_t		  ptl_lock;
-	unsigned int		  ptl_index;	/* portal ID, reserved */
-	/* flags on this portal: lazy, unique... */
-	unsigned int		  ptl_options;
-	/* list of messages which are stealing buffer */
-	struct list_head	  ptl_msg_stealing;
-	/* messages blocking for MD */
-	struct list_head	  ptl_msg_delayed;
-	/* Match table for each CPT */
-	struct lnet_match_table	**ptl_mtables;
-	/* spread rotor of incoming "PUT" */
-	unsigned int		  ptl_rotor;
-	/* # active entries for this portal */
-	int			  ptl_mt_nmaps;
-	/* array of active entries' cpu-partition-id */
-	int			  ptl_mt_maps[0];
-} lnet_portal_t;
-
-#define LNET_LH_HASH_BITS	12
-#define LNET_LH_HASH_SIZE	(1ULL << LNET_LH_HASH_BITS)
-#define LNET_LH_HASH_MASK	(LNET_LH_HASH_SIZE - 1)
-
-/* resource container (ME, MD, EQ) */
-struct lnet_res_container {
-	unsigned int		 rec_type;	/* container type */
-	__u64			 rec_lh_cookie;	/* cookie generator */
-	struct list_head	 rec_active;	/* active resource list */
-	struct list_head	*rec_lh_hash;	/* handle hash */
-};
-
-/* message container */
-struct lnet_msg_container {
-	int			  msc_init;	/* initialized or not */
-	/* max # threads finalizing */
-	int			  msc_nfinalizers;
-	/* msgs waiting to complete finalizing */
-	struct list_head	  msc_finalizing;
-	struct list_head	  msc_active;	/* active message list */
-	/* threads doing finalization */
-	void			**msc_finalizers;
-};
-
-/* Router Checker states */
-#define LNET_RC_STATE_SHUTDOWN		0	/* not started */
-#define LNET_RC_STATE_RUNNING		1	/* started up OK */
-#define LNET_RC_STATE_STOPPING		2	/* telling thread to stop */
-
-typedef struct {
-	/* CPU partition table of LNet */
-	struct cfs_cpt_table		 *ln_cpt_table;
-	/* number of CPTs in ln_cpt_table */
-	unsigned int			  ln_cpt_number;
-	unsigned int			  ln_cpt_bits;
-
-	/* protect LNet resources (ME/MD/EQ) */
-	struct cfs_percpt_lock		 *ln_res_lock;
-	/* # portals */
-	int				  ln_nportals;
-	/* the vector of portals */
-	lnet_portal_t			**ln_portals;
-	/* percpt ME containers */
-	struct lnet_res_container	**ln_me_containers;
-	/* percpt MD container */
-	struct lnet_res_container	**ln_md_containers;
-
-	/* Event Queue container */
-	struct lnet_res_container	  ln_eq_container;
-	wait_queue_head_t		  ln_eq_waitq;
-	spinlock_t			  ln_eq_wait_lock;
-	unsigned int			  ln_remote_nets_hbits;
-
-	/* protect NI, peer table, credits, routers, rtrbuf... */
-	struct cfs_percpt_lock		 *ln_net_lock;
-	/* percpt message containers for active/finalizing/freed message */
-	struct lnet_msg_container	**ln_msg_containers;
-	lnet_counters_t			**ln_counters;
-	struct lnet_peer_table		**ln_peer_tables;
-	/* failure simulation */
-	struct list_head		  ln_test_peers;
-
-	struct list_head		  ln_nis;	/* LND instances */
-	/* NIs bond on specific CPT(s) */
-	struct list_head		  ln_nis_cpt;
-	/* dying LND instances */
-	struct list_head		  ln_nis_zombie;
-	lnet_ni_t			 *ln_loni;	/* the loopback NI */
-	/* NI to wait for events in */
-	lnet_ni_t			 *ln_eq_waitni;
-
-	/* remote networks with routes to them */
-	struct list_head		 *ln_remote_nets_hash;
-	/* validity stamp */
-	__u64				  ln_remote_nets_version;
-	/* list of all known routers */
-	struct list_head		  ln_routers;
-	/* validity stamp */
-	__u64				  ln_routers_version;
-	/* percpt router buffer pools */
-	lnet_rtrbufpool_t		**ln_rtrpools;
-
-	lnet_handle_md_t		  ln_ping_target_md;
-	lnet_handle_eq_t		  ln_ping_target_eq;
-	lnet_ping_info_t		 *ln_ping_info;
-
-	/* router checker startup/shutdown state */
-	int				  ln_rc_state;
-	/* router checker's event queue */
-	lnet_handle_eq_t		  ln_rc_eqh;
-	/* rcd still pending on net */
-	struct list_head		  ln_rcd_deathrow;
-	/* rcd ready for free */
-	struct list_head		  ln_rcd_zombie;
-	/* serialise startup/shutdown */
-	struct semaphore		  ln_rc_signal;
-
-	struct mutex			  ln_api_mutex;
-	struct mutex			  ln_lnd_mutex;
-	int				  ln_init;	/* lnet_init()
-							   called? */
-	/* Have I called LNetNIInit myself? */
-	int				  ln_niinit_self;
-	/* LNetNIInit/LNetNIFini counter */
-	int				  ln_refcount;
-	/* shutdown in progress */
-	int				  ln_shutdown;
-
-	int				  ln_routing;	/* am I a router? */
-	lnet_pid_t			  ln_pid;	/* requested pid */
-	/* uniquely identifies this ni in this epoch */
-	__u64				  ln_interface_cookie;
-	/* registered LNDs */
-	struct list_head		  ln_lnds;
-
-	/* space for network names */
-	char				 *ln_network_tokens;
-	int				  ln_network_tokens_nob;
-	/* test protocol compatibility flags */
-	int				  ln_testprotocompat;
-
-} lnet_t;
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/lnet/lnet.h b/drivers/staging/lustre/include/linux/lnet/lnet.h
deleted file mode 100644
index 5d1559a26638..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/lnet.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012 - 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- */
-
-#ifndef __LNET_H__
-#define __LNET_H__
-
-/*
- * lnet.h
- *
- * User application interface file
- */
-#include "types.h"
-#include "nidstr.h"
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/lnet/lnetctl.h b/drivers/staging/lustre/include/linux/lnet/lnetctl.h
deleted file mode 100644
index bdd69b2af909..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/lnetctl.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- *   This file is part of Portals, http://www.sf.net/projects/lustre/
- *
- *   Portals is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Portals is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * header for lnet ioctl
- */
-#ifndef _LNETCTL_H_
-#define _LNETCTL_H_
-
-#include "types.h"
-
-#define LNET_DEV_ID 0
-#define LNET_DEV_PATH "/dev/lnet"
-#define LNET_DEV_MAJOR 10
-#define LNET_DEV_MINOR 240
-#define OBD_DEV_ID 1
-#define OBD_DEV_NAME "obd"
-#define OBD_DEV_PATH "/dev/" OBD_DEV_NAME
-#define OBD_DEV_MAJOR 10
-#define OBD_DEV_MINOR 241
-#define SMFS_DEV_ID  2
-#define SMFS_DEV_PATH "/dev/snapdev"
-#define SMFS_DEV_MAJOR 10
-#define SMFS_DEV_MINOR 242
-
-int ptl_initialize(int argc, char **argv);
-int jt_ptl_network(int argc, char **argv);
-int jt_ptl_list_nids(int argc, char **argv);
-int jt_ptl_which_nid(int argc, char **argv);
-int jt_ptl_print_interfaces(int argc, char **argv);
-int jt_ptl_add_interface(int argc, char **argv);
-int jt_ptl_del_interface(int argc, char **argv);
-int jt_ptl_print_peers(int argc, char **argv);
-int jt_ptl_add_peer(int argc, char **argv);
-int jt_ptl_del_peer(int argc, char **argv);
-int jt_ptl_print_connections(int argc, char **argv);
-int jt_ptl_disconnect(int argc, char **argv);
-int jt_ptl_push_connection(int argc, char **argv);
-int jt_ptl_print_active_txs(int argc, char **argv);
-int jt_ptl_ping(int argc, char **argv);
-int jt_ptl_mynid(int argc, char **argv);
-int jt_ptl_add_uuid(int argc, char **argv);
-int jt_ptl_add_uuid_old(int argc, char **argv); /* backwards compatibility  */
-int jt_ptl_close_uuid(int argc, char **argv);
-int jt_ptl_del_uuid(int argc, char **argv);
-int jt_ptl_add_route(int argc, char **argv);
-int jt_ptl_del_route(int argc, char **argv);
-int jt_ptl_notify_router(int argc, char **argv);
-int jt_ptl_print_routes(int argc, char **argv);
-int jt_ptl_fail_nid(int argc, char **argv);
-int jt_ptl_lwt(int argc, char **argv);
-int jt_ptl_testprotocompat(int argc, char **argv);
-int jt_ptl_memhog(int argc, char **argv);
-
-int dbg_initialize(int argc, char **argv);
-int jt_dbg_filter(int argc, char **argv);
-int jt_dbg_show(int argc, char **argv);
-int jt_dbg_list(int argc, char **argv);
-int jt_dbg_debug_kernel(int argc, char **argv);
-int jt_dbg_debug_daemon(int argc, char **argv);
-int jt_dbg_debug_file(int argc, char **argv);
-int jt_dbg_clear_debug_buf(int argc, char **argv);
-int jt_dbg_mark_debug_buf(int argc, char **argv);
-int jt_dbg_modules(int argc, char **argv);
-int jt_dbg_panic(int argc, char **argv);
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/lnet/lnetst.h b/drivers/staging/lustre/include/linux/lnet/lnetst.h
deleted file mode 100644
index fd1e0fd3696f..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/lnetst.h
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011 - 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- *
- * lnet/include/lnet/lnetst.h
- *
- * Author: Liang Zhen <liang.zhen@intel.com>
- */
-
-#ifndef __LNET_ST_H__
-#define __LNET_ST_H__
-
-#include <linux/types.h>
-
-#define LST_FEAT_NONE		(0)
-#define LST_FEAT_BULK_LEN	(1 << 0)	/* enable variable page size */
-
-#define LST_FEATS_EMPTY		(LST_FEAT_NONE)
-#define LST_FEATS_MASK		(LST_FEAT_NONE | LST_FEAT_BULK_LEN)
-
-#define LST_NAME_SIZE		32	/* max name buffer length */
-
-#define LSTIO_DEBUG		0xC00	/* debug */
-#define LSTIO_SESSION_NEW	0xC01	/* create session */
-#define LSTIO_SESSION_END	0xC02	/* end session */
-#define LSTIO_SESSION_INFO	0xC03	/* query session */
-#define LSTIO_GROUP_ADD		0xC10	/* add group */
-#define LSTIO_GROUP_LIST	0xC11	/* list all groups in session */
-#define LSTIO_GROUP_INFO	0xC12	/* query default information of
-					 * specified group */
-#define LSTIO_GROUP_DEL		0xC13	/* delete group */
-#define LSTIO_NODES_ADD		0xC14	/* add nodes to specified group */
-#define LSTIO_GROUP_UPDATE      0xC15	/* update group */
-#define LSTIO_BATCH_ADD		0xC20	/* add batch */
-#define LSTIO_BATCH_START	0xC21	/* start batch */
-#define LSTIO_BATCH_STOP	0xC22	/* stop batch */
-#define LSTIO_BATCH_DEL		0xC23	/* delete batch */
-#define LSTIO_BATCH_LIST	0xC24	/* show all batches in the session */
-#define LSTIO_BATCH_INFO	0xC25	/* show defail of specified batch */
-#define LSTIO_TEST_ADD		0xC26	/* add test (to batch) */
-#define LSTIO_BATCH_QUERY	0xC27	/* query batch status */
-#define LSTIO_STAT_QUERY	0xC30	/* get stats */
-
-typedef struct {
-	lnet_nid_t	ses_nid;	/* nid of console node */
-	__u64		ses_stamp;	/* time stamp */
-} lst_sid_t;				/*** session id */
-
-extern lst_sid_t LST_INVALID_SID;
-
-typedef struct {
-	__u64	bat_id;		/* unique id in session */
-} lst_bid_t;			/*** batch id (group of tests) */
-
-/* Status of test node */
-#define LST_NODE_ACTIVE		0x1	/* node in this session */
-#define LST_NODE_BUSY		0x2	/* node is taken by other session */
-#define LST_NODE_DOWN		0x4	/* node is down */
-#define LST_NODE_UNKNOWN	0x8	/* node not in session */
-
-typedef struct {
-	lnet_process_id_t       nde_id;		/* id of node */
-	int			nde_state;	/* state of node */
-} lstcon_node_ent_t;		/*** node entry, for list_group command */
-
-typedef struct {
-	int	nle_nnode;	/* # of nodes */
-	int	nle_nactive;	/* # of active nodes */
-	int	nle_nbusy;	/* # of busy nodes */
-	int	nle_ndown;	/* # of down nodes */
-	int	nle_nunknown;	/* # of unknown nodes */
-} lstcon_ndlist_ent_t;		/*** node_list entry, for list_batch command */
-
-typedef struct {
-	int	tse_type;       /* test type */
-	int	tse_loop;       /* loop count */
-	int	tse_concur;     /* concurrency of test */
-} lstcon_test_ent_t;		/*** test summary entry, for
-				 *** list_batch command */
-
-typedef struct {
-	int	bae_state;	/* batch status */
-	int	bae_timeout;	/* batch timeout */
-	int	bae_ntest;	/* # of tests in the batch */
-} lstcon_batch_ent_t;		/*** batch summary entry, for
-				 *** list_batch command */
-
-typedef struct {
-	lstcon_ndlist_ent_t     tbe_cli_nle;	/* client (group) node_list
-						 * entry */
-	lstcon_ndlist_ent_t     tbe_srv_nle;	/* server (group) node_list
-						 * entry */
-	union {
-		lstcon_test_ent_t  tbe_test;	/* test entry */
-		lstcon_batch_ent_t tbe_batch;	/* batch entry */
-	} u;
-} lstcon_test_batch_ent_t;	/*** test/batch verbose information entry,
-				 *** for list_batch command */
-
-typedef struct {
-	struct list_head	rpe_link;	/* link chain */
-	lnet_process_id_t	rpe_peer;	/* peer's id */
-	struct timeval		rpe_stamp;	/* time stamp of RPC */
-	int			rpe_state;	/* peer's state */
-	int			rpe_rpc_errno;	/* RPC errno */
-
-	lst_sid_t		rpe_sid;	/* peer's session id */
-	int			rpe_fwk_errno;	/* framework errno */
-	int			rpe_priv[4];	/* private data */
-	char			rpe_payload[0];	/* private reply payload */
-} lstcon_rpc_ent_t;
-
-typedef struct {
-	int	trs_rpc_stat[4];	/* RPCs stat (0: total
-						      1: failed
-						      2: finished
-						      4: reserved */
-	int	trs_rpc_errno;		/* RPC errno */
-	int	trs_fwk_stat[8];	/* framework stat */
-	int	trs_fwk_errno;		/* errno of the first remote error */
-	void	*trs_fwk_private;	/* private framework stat */
-} lstcon_trans_stat_t;
-
-static inline int
-lstcon_rpc_stat_total(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_rpc_stat[0] : stat->trs_rpc_stat[0];
-}
-
-static inline int
-lstcon_rpc_stat_success(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_rpc_stat[1] : stat->trs_rpc_stat[1];
-}
-
-static inline int
-lstcon_rpc_stat_failure(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_rpc_stat[2] : stat->trs_rpc_stat[2];
-}
-
-static inline int
-lstcon_sesop_stat_success(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[0] : stat->trs_fwk_stat[0];
-}
-
-static inline int
-lstcon_sesop_stat_failure(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[1] : stat->trs_fwk_stat[1];
-}
-
-static inline int
-lstcon_sesqry_stat_active(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[0] : stat->trs_fwk_stat[0];
-}
-
-static inline int
-lstcon_sesqry_stat_busy(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[1] : stat->trs_fwk_stat[1];
-}
-
-static inline int
-lstcon_sesqry_stat_unknown(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[2] : stat->trs_fwk_stat[2];
-}
-
-static inline int
-lstcon_tsbop_stat_success(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[0] : stat->trs_fwk_stat[0];
-}
-
-static inline int
-lstcon_tsbop_stat_failure(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[1] : stat->trs_fwk_stat[1];
-}
-
-static inline int
-lstcon_tsbqry_stat_idle(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[0] : stat->trs_fwk_stat[0];
-}
-
-static inline int
-lstcon_tsbqry_stat_run(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[1] : stat->trs_fwk_stat[1];
-}
-
-static inline int
-lstcon_tsbqry_stat_failure(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[2] : stat->trs_fwk_stat[2];
-}
-
-static inline int
-lstcon_statqry_stat_success(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[0] : stat->trs_fwk_stat[0];
-}
-
-static inline int
-lstcon_statqry_stat_failure(lstcon_trans_stat_t *stat, int inc)
-{
-	return inc ? ++stat->trs_fwk_stat[1] : stat->trs_fwk_stat[1];
-}
-
-/* create a session */
-typedef struct {
-	int		 lstio_ses_key;		/* IN: local key */
-	int		 lstio_ses_timeout;	/* IN: session timeout */
-	int		 lstio_ses_force;	/* IN: force create ? */
-	/** IN: session features */
-	unsigned	 lstio_ses_feats;
-	lst_sid_t	*lstio_ses_idp;		/* OUT: session id */
-	int		 lstio_ses_nmlen;	/* IN: name length */
-	char		*lstio_ses_namep;	/* IN: session name */
-} lstio_session_new_args_t;
-
-/* query current session */
-typedef struct {
-	lst_sid_t		*lstio_ses_idp;		/* OUT: session id */
-	int			*lstio_ses_keyp;	/* OUT: local key */
-	/** OUT: session features */
-	unsigned		*lstio_ses_featp;
-	lstcon_ndlist_ent_t	*lstio_ses_ndinfo;	/* OUT: */
-	int			 lstio_ses_nmlen;	/* IN: name length */
-	char			*lstio_ses_namep;	/* OUT: session name */
-} lstio_session_info_args_t;
-
-/* delete a session */
-typedef struct {
-	int			lstio_ses_key;	/* IN: session key */
-} lstio_session_end_args_t;
-
-#define LST_OPC_SESSION		1
-#define LST_OPC_GROUP		2
-#define LST_OPC_NODES		3
-#define LST_OPC_BATCHCLI	4
-#define LST_OPC_BATCHSRV	5
-
-typedef struct {
-	int			 lstio_dbg_key;		/* IN: session key */
-	int			 lstio_dbg_type;	/* IN: debug
-								session|batch|
-								group|nodes
-								list */
-	int			 lstio_dbg_flags;	/* IN: reserved debug
-							       flags */
-	int			 lstio_dbg_timeout;	/* IN: timeout of
-							       debug */
-	int			 lstio_dbg_nmlen;	/* IN: len of name */
-	char			*lstio_dbg_namep;	/* IN: name of
-							       group|batch */
-	int			 lstio_dbg_count;	/* IN: # of test nodes
-							       to debug */
-	lnet_process_id_t	*lstio_dbg_idsp;	/* IN: id of test
-							       nodes */
-	struct list_head	*lstio_dbg_resultp;	/* OUT: list head of
-								result buffer */
-} lstio_debug_args_t;
-
-typedef struct {
-	int	 lstio_grp_key;		/* IN: session key */
-	int	 lstio_grp_nmlen;	/* IN: name length */
-	char	*lstio_grp_namep;	/* IN: group name */
-} lstio_group_add_args_t;
-
-typedef struct {
-	int	 lstio_grp_key;		/* IN: session key */
-	int	 lstio_grp_nmlen;	/* IN: name length */
-	char	*lstio_grp_namep;	/* IN: group name */
-} lstio_group_del_args_t;
-
-#define LST_GROUP_CLEAN		1	/* remove inactive nodes in the group */
-#define LST_GROUP_REFRESH	2	/* refresh inactive nodes
-					 * in the group */
-#define LST_GROUP_RMND		3	/* delete nodes from the group */
-
-typedef struct {
-	int			 lstio_grp_key;		/* IN: session key */
-	int			 lstio_grp_opc;		/* IN: OPC */
-	int			 lstio_grp_args;	/* IN: arguments */
-	int			 lstio_grp_nmlen;	/* IN: name length */
-	char			*lstio_grp_namep;	/* IN: group name */
-	int			 lstio_grp_count;	/* IN: # of nodes id */
-	lnet_process_id_t	*lstio_grp_idsp;	/* IN: array of nodes */
-	struct list_head	*lstio_grp_resultp;	/* OUT: list head of
-								result buffer */
-} lstio_group_update_args_t;
-
-typedef struct {
-	int			 lstio_grp_key;		/* IN: session key */
-	int			 lstio_grp_nmlen;	/* IN: name length */
-	char			*lstio_grp_namep;	/* IN: group name */
-	int			 lstio_grp_count;	/* IN: # of nodes */
-	/** OUT: session features */
-	unsigned		*lstio_grp_featp;
-	lnet_process_id_t	*lstio_grp_idsp;	/* IN: nodes */
-	struct list_head	*lstio_grp_resultp;	/* OUT: list head of
-								result buffer */
-} lstio_group_nodes_args_t;
-
-typedef struct {
-	int	 lstio_grp_key;		/* IN: session key */
-	int	 lstio_grp_idx;		/* IN: group idx */
-	int	 lstio_grp_nmlen;	/* IN: name len */
-	char	*lstio_grp_namep;	/* OUT: name */
-} lstio_group_list_args_t;
-
-typedef struct {
-	int			 lstio_grp_key;		/* IN: session key */
-	int			 lstio_grp_nmlen;	/* IN: name len */
-	char			*lstio_grp_namep;	/* IN: name */
-	lstcon_ndlist_ent_t	*lstio_grp_entp;	/* OUT: description of
-								group */
-	int			*lstio_grp_idxp;	/* IN/OUT: node index */
-	int			*lstio_grp_ndentp;	/* IN/OUT: # of nodent */
-	lstcon_node_ent_t	*lstio_grp_dentsp;	/* OUT: nodent array */
-} lstio_group_info_args_t;
-
-#define LST_DEFAULT_BATCH	"batch"			/* default batch name */
-
-typedef struct {
-	int	 lstio_bat_key;		/* IN: session key */
-	int	 lstio_bat_nmlen;	/* IN: name length */
-	char	*lstio_bat_namep;	/* IN: batch name */
-} lstio_batch_add_args_t;
-
-typedef struct {
-	int	 lstio_bat_key;		/* IN: session key */
-	int	 lstio_bat_nmlen;	/* IN: name length */
-	char	*lstio_bat_namep;	/* IN: batch name */
-} lstio_batch_del_args_t;
-
-typedef struct {
-	int			 lstio_bat_key;		/* IN: session key */
-	int			 lstio_bat_timeout;	/* IN: timeout for
-							       the batch */
-	int			 lstio_bat_nmlen;	/* IN: name length */
-	char			*lstio_bat_namep;	/* IN: batch name */
-	struct list_head	*lstio_bat_resultp;	/* OUT: list head of
-								result buffer */
-} lstio_batch_run_args_t;
-
-typedef struct {
-	int			 lstio_bat_key;		/* IN: session key */
-	int			 lstio_bat_force;	/* IN: abort unfinished
-							       test RPC */
-	int			 lstio_bat_nmlen;	/* IN: name length */
-	char			*lstio_bat_namep;	/* IN: batch name */
-	struct list_head	*lstio_bat_resultp;	/* OUT: list head of
-								result buffer */
-} lstio_batch_stop_args_t;
-
-typedef struct {
-	int			 lstio_bat_key;		/* IN: session key */
-	int			 lstio_bat_testidx;	/* IN: test index */
-	int			 lstio_bat_client;	/* IN: we testing
-							       client? */
-	int			 lstio_bat_timeout;	/* IN: timeout for
-							       waiting */
-	int			 lstio_bat_nmlen;	/* IN: name length */
-	char			*lstio_bat_namep;	/* IN: batch name */
-	struct list_head	*lstio_bat_resultp;	/* OUT: list head of
-								result buffer */
-} lstio_batch_query_args_t;
-
-typedef struct {
-	int	 lstio_bat_key;		/* IN: session key */
-	int	 lstio_bat_idx;		/* IN: index */
-	int	 lstio_bat_nmlen;	/* IN: name length */
-	char	*lstio_bat_namep;	/* IN: batch name */
-} lstio_batch_list_args_t;
-
-typedef struct {
-	int			 lstio_bat_key;		/* IN: session key */
-	int			 lstio_bat_nmlen;	/* IN: name length */
-	char			*lstio_bat_namep;	/* IN: name */
-	int			 lstio_bat_server;	/* IN: query server
-							       or not */
-	int			 lstio_bat_testidx;	/* IN: test index */
-	lstcon_test_batch_ent_t	*lstio_bat_entp;	/* OUT: batch ent */
-
-	int			*lstio_bat_idxp;	/* IN/OUT: index of node */
-	int			*lstio_bat_ndentp;	/* IN/OUT: # of nodent */
-	lstcon_node_ent_t	*lstio_bat_dentsp;	/* array of nodent */
-} lstio_batch_info_args_t;
-
-/* add stat in session */
-typedef struct {
-	int			 lstio_sta_key;		/* IN: session key */
-	int			 lstio_sta_timeout;	/* IN: timeout for
-							       stat request */
-	int			 lstio_sta_nmlen;	/* IN: group name
-							       length */
-	char			*lstio_sta_namep;	/* IN: group name */
-	int			 lstio_sta_count;	/* IN: # of pid */
-	lnet_process_id_t	*lstio_sta_idsp;	/* IN: pid */
-	struct list_head	*lstio_sta_resultp;	/* OUT: list head of
-								result buffer */
-} lstio_stat_args_t;
-
-typedef enum {
-	LST_TEST_BULK	= 1,
-	LST_TEST_PING	= 2
-} lst_test_type_t;
-
-/* create a test in a batch */
-#define LST_MAX_CONCUR	1024	/* Max concurrency of test */
-
-typedef struct {
-	int		  lstio_tes_key;	/* IN: session key */
-	int		  lstio_tes_bat_nmlen;	/* IN: batch name len */
-	char		 *lstio_tes_bat_name;	/* IN: batch name */
-	int		  lstio_tes_type;	/* IN: test type */
-	int		  lstio_tes_oneside;	/* IN: one sided test */
-	int		  lstio_tes_loop;	/* IN: loop count */
-	int		  lstio_tes_concur;	/* IN: concurrency */
-
-	int		  lstio_tes_dist;	/* IN: node distribution in
-						       destination groups */
-	int		  lstio_tes_span;	/* IN: node span in
-						       destination groups */
-	int		  lstio_tes_sgrp_nmlen;	/* IN: source group
-						       name length */
-	char		 *lstio_tes_sgrp_name;	/* IN: group name */
-	int		  lstio_tes_dgrp_nmlen;	/* IN: destination group
-						       name length */
-	char		 *lstio_tes_dgrp_name;	/* IN: group name */
-
-	int		  lstio_tes_param_len;	/* IN: param buffer len */
-	void		 *lstio_tes_param;	/* IN: parameter for specified
-						       test:
-						       lstio_bulk_param_t,
-						       lstio_ping_param_t,
-						       ... more */
-	int		 *lstio_tes_retp;	/* OUT: private returned
-							value */
-	struct list_head *lstio_tes_resultp;	/* OUT: list head of
-							result buffer */
-} lstio_test_args_t;
-
-typedef enum {
-	LST_BRW_READ	= 1,
-	LST_BRW_WRITE	= 2
-} lst_brw_type_t;
-
-typedef enum {
-	LST_BRW_CHECK_NONE	= 1,
-	LST_BRW_CHECK_SIMPLE	= 2,
-	LST_BRW_CHECK_FULL	= 3
-} lst_brw_flags_t;
-
-typedef struct {
-	int	blk_opc;	/* bulk operation code */
-	int	blk_size;       /* size (bytes) */
-	int	blk_time;       /* time of running the test*/
-	int	blk_flags;      /* reserved flags */
-} lst_test_bulk_param_t;
-
-typedef struct {
-	int	png_size;	/* size of ping message */
-	int	png_time;	/* time */
-	int	png_loop;	/* loop */
-	int	png_flags;	/* reserved flags */
-} lst_test_ping_param_t;
-
-typedef struct {
-	__u32 errors;
-	__u32 rpcs_sent;
-	__u32 rpcs_rcvd;
-	__u32 rpcs_dropped;
-	__u32 rpcs_expired;
-	__u64 bulk_get;
-	__u64 bulk_put;
-} WIRE_ATTR srpc_counters_t;
-
-typedef struct {
-	/** milliseconds since current session started */
-	__u32 running_ms;
-	__u32 active_batches;
-	__u32 zombie_sessions;
-	__u32 brw_errors;
-	__u32 ping_errors;
-} WIRE_ATTR sfw_counters_t;
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/lnet/nidstr.h b/drivers/staging/lustre/include/linux/lnet/nidstr.h
deleted file mode 100644
index a627be9fcdd0..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/nidstr.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011 - 2015, Intel Corporation.
- */
-#ifndef _LNET_NIDSTRINGS_H
-#define _LNET_NIDSTRINGS_H
-
-#include "types.h"
-
-/**
- *  Lustre Network Driver types.
- */
-enum {
-	/* Only add to these values (i.e. don't ever change or redefine them):
-	 * network addresses depend on them... */
-	QSWLND		= 1,
-	SOCKLND		= 2,
-	GMLND		= 3,
-	PTLLND		= 4,
-	O2IBLND		= 5,
-	CIBLND		= 6,
-	OPENIBLND	= 7,
-	IIBLND		= 8,
-	LOLND		= 9,
-	RALND		= 10,
-	VIBLND		= 11,
-	MXLND		= 12,
-	GNILND		= 13,
-	GNIIPLND	= 14,
-};
-
-struct list_head;
-
-#define LNET_NIDSTR_COUNT  1024    /* # of nidstrings */
-#define LNET_NIDSTR_SIZE   32      /* size of each one (see below for usage) */
-
-int libcfs_isknown_lnd(int type);
-char *libcfs_lnd2modname(int type);
-char *libcfs_lnd2str(int type);
-int libcfs_str2lnd(const char *str);
-char *libcfs_net2str(__u32 net);
-char *libcfs_nid2str(lnet_nid_t nid);
-__u32 libcfs_str2net(const char *str);
-lnet_nid_t libcfs_str2nid(const char *str);
-int libcfs_str2anynid(lnet_nid_t *nid, const char *str);
-char *libcfs_id2str(lnet_process_id_t id);
-void cfs_free_nidlist(struct list_head *list);
-int cfs_parse_nidlist(char *str, int len, struct list_head *list);
-int cfs_match_nid(lnet_nid_t nid, struct list_head *list);
-bool cfs_nidrange_is_contiguous(struct list_head *nidlist);
-void cfs_nidrange_find_min_max(struct list_head *nidlist, char *min_nid,
-			       char *max_nid, size_t nidstr_length);
-
-#endif /* _LNET_NIDSTRINGS_H */
diff --git a/drivers/staging/lustre/include/linux/lnet/socklnd.h b/drivers/staging/lustre/include/linux/lnet/socklnd.h
deleted file mode 100644
index 599c9f6628fb..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/socklnd.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012 - 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- *
- * lnet/include/lnet/socklnd.h
- */
-#ifndef __LNET_LNET_SOCKLND_H__
-#define __LNET_LNET_SOCKLND_H__
-
-#include "types.h"
-
-#define SOCKLND_CONN_NONE     (-1)
-#define SOCKLND_CONN_ANY	0
-#define SOCKLND_CONN_CONTROL	1
-#define SOCKLND_CONN_BULK_IN	2
-#define SOCKLND_CONN_BULK_OUT	3
-#define SOCKLND_CONN_NTYPES	4
-
-#define SOCKLND_CONN_ACK	SOCKLND_CONN_BULK_IN
-
-typedef struct {
-	__u32		kshm_magic;	/* magic number of socklnd message */
-	__u32		kshm_version;	/* version of socklnd message */
-	lnet_nid_t      kshm_src_nid;	/* sender's nid */
-	lnet_nid_t	kshm_dst_nid;	/* destination nid */
-	lnet_pid_t	kshm_src_pid;	/* sender's pid */
-	lnet_pid_t	kshm_dst_pid;	/* destination pid */
-	__u64		kshm_src_incarnation; /* sender's incarnation */
-	__u64		kshm_dst_incarnation; /* destination's incarnation */
-	__u32		kshm_ctype;	/* connection type */
-	__u32		kshm_nips;	/* # IP addrs */
-	__u32		kshm_ips[0];	/* IP addrs */
-} WIRE_ATTR ksock_hello_msg_t;
-
-typedef struct {
-	lnet_hdr_t	ksnm_hdr;	/* lnet hdr */
-
-	/*
-	 * ksnm_payload is removed because of winnt compiler's limitation:
-	 * zero-sized array can only be placed at the tail of [nested]
-	 * structure definitions. lnet payload will be stored just after
-	 * the body of structure ksock_lnet_msg_t
-	 */
-} WIRE_ATTR ksock_lnet_msg_t;
-
-typedef struct {
-	__u32	ksm_type;		/* type of socklnd message */
-	__u32	ksm_csum;		/* checksum if != 0 */
-	__u64	ksm_zc_cookies[2];	/* Zero-Copy request/ACK cookie */
-	union {
-		ksock_lnet_msg_t lnetmsg;/* lnet message, it's empty if
-					  * it's NOOP */
-	} WIRE_ATTR ksm_u;
-} WIRE_ATTR ksock_msg_t;
-
-static inline void
-socklnd_init_msg(ksock_msg_t *msg, int type)
-{
-	msg->ksm_csum = 0;
-	msg->ksm_type = type;
-	msg->ksm_zc_cookies[0] = msg->ksm_zc_cookies[1]  = 0;
-}
-
-#define KSOCK_MSG_NOOP	0xC0	/* ksm_u empty */
-#define KSOCK_MSG_LNET	0xC1	/* lnet msg */
-
-/* We need to know this number to parse hello msg from ksocklnd in
- * other LND (usocklnd, for example) */
-#define KSOCK_PROTO_V2	2
-#define KSOCK_PROTO_V3	3
-
-#endif
diff --git a/drivers/staging/lustre/include/linux/lnet/types.h b/drivers/staging/lustre/include/linux/lnet/types.h
deleted file mode 100644
index 940f73f266d1..000000000000
--- a/drivers/staging/lustre/include/linux/lnet/types.h
+++ /dev/null
@@ -1,662 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012 - 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- */
-
-#ifndef __LNET_TYPES_H__
-#define __LNET_TYPES_H__
-
-#include <linux/types.h>
-
-/** \addtogroup lnet
- * @{ */
-
-/** \addtogroup lnet_addr
- * @{ */
-
-/** Portal reserved for LNet's own use.
- * \see lustre/include/lustre/lustre_idl.h for Lustre portal assignments.
- */
-#define LNET_RESERVED_PORTAL	0
-
-/**
- * Address of an end-point in an LNet network.
- *
- * A node can have multiple end-points and hence multiple addresses.
- * An LNet network can be a simple network (e.g. tcp0) or a network of
- * LNet networks connected by LNet routers. Therefore an end-point address
- * has two parts: network ID, and address within a network.
- *
- * \see LNET_NIDNET, LNET_NIDADDR, and LNET_MKNID.
- */
-typedef __u64 lnet_nid_t;
-/**
- * ID of a process in a node. Shortened as PID to distinguish from
- * lnet_process_id_t, the global process ID.
- */
-typedef __u32 lnet_pid_t;
-
-/** wildcard NID that matches any end-point address */
-#define LNET_NID_ANY	((lnet_nid_t) -1)
-/** wildcard PID that matches any lnet_pid_t */
-#define LNET_PID_ANY	((lnet_pid_t) -1)
-
-#define LNET_PID_RESERVED 0xf0000000 /* reserved bits in PID */
-#define LNET_PID_USERFLAG 0x80000000 /* set in userspace peers */
-#define LNET_PID_LUSTRE	  12345
-
-#define LNET_TIME_FOREVER (-1)
-
-/* how an LNET NID encodes net:address */
-/** extract the address part of an lnet_nid_t */
-
-static inline __u32 LNET_NIDADDR(lnet_nid_t nid)
-{
-	return nid & 0xffffffff;
-}
-
-static inline __u32 LNET_NIDNET(lnet_nid_t nid)
-{
-	return (nid >> 32) & 0xffffffff;
-}
-
-static inline lnet_nid_t LNET_MKNID(__u32 net, __u32 addr)
-{
-	return (((__u64)net) << 32) | addr;
-}
-
-static inline __u32 LNET_NETNUM(__u32 net)
-{
-	return net & 0xffff;
-}
-
-static inline __u32 LNET_NETTYP(__u32 net)
-{
-	return (net >> 16) & 0xffff;
-}
-
-static inline __u32 LNET_MKNET(__u32 type, __u32 num)
-{
-	return (type << 16) | num;
-}
-
-#define WIRE_ATTR	__packed
-
-/* Packed version of lnet_process_id_t to transfer via network */
-typedef struct {
-	/* node id / process id */
-	lnet_nid_t	nid;
-	lnet_pid_t	pid;
-} WIRE_ATTR lnet_process_id_packed_t;
-
-/* The wire handle's interface cookie only matches one network interface in
- * one epoch (i.e. new cookie when the interface restarts or the node
- * reboots).  The object cookie only matches one object on that interface
- * during that object's lifetime (i.e. no cookie re-use). */
-typedef struct {
-	__u64	wh_interface_cookie;
-	__u64	wh_object_cookie;
-} WIRE_ATTR lnet_handle_wire_t;
-
-typedef enum {
-	LNET_MSG_ACK = 0,
-	LNET_MSG_PUT,
-	LNET_MSG_GET,
-	LNET_MSG_REPLY,
-	LNET_MSG_HELLO,
-} lnet_msg_type_t;
-
-/* The variant fields of the portals message header are aligned on an 8
- * byte boundary in the message header.  Note that all types used in these
- * wire structs MUST be fixed size and the smaller types are placed at the
- * end. */
-typedef struct lnet_ack {
-	lnet_handle_wire_t	dst_wmd;
-	__u64			match_bits;
-	__u32			mlength;
-} WIRE_ATTR lnet_ack_t;
-
-typedef struct lnet_put {
-	lnet_handle_wire_t	ack_wmd;
-	__u64			match_bits;
-	__u64			hdr_data;
-	__u32			ptl_index;
-	__u32			offset;
-} WIRE_ATTR lnet_put_t;
-
-typedef struct lnet_get {
-	lnet_handle_wire_t	return_wmd;
-	__u64			match_bits;
-	__u32			ptl_index;
-	__u32			src_offset;
-	__u32			sink_length;
-} WIRE_ATTR lnet_get_t;
-
-typedef struct lnet_reply {
-	lnet_handle_wire_t	dst_wmd;
-} WIRE_ATTR lnet_reply_t;
-
-typedef struct lnet_hello {
-	__u64			incarnation;
-	__u32			type;
-} WIRE_ATTR lnet_hello_t;
-
-typedef struct {
-	lnet_nid_t	dest_nid;
-	lnet_nid_t	src_nid;
-	lnet_pid_t	dest_pid;
-	lnet_pid_t	src_pid;
-	__u32		type;		/* lnet_msg_type_t */
-	__u32		payload_length;	/* payload data to follow */
-	/*<------__u64 aligned------->*/
-	union {
-		lnet_ack_t	ack;
-		lnet_put_t	put;
-		lnet_get_t	get;
-		lnet_reply_t	reply;
-		lnet_hello_t	hello;
-	} msg;
-} WIRE_ATTR lnet_hdr_t;
-
-/* A HELLO message contains a magic number and protocol version
- * code in the header's dest_nid, the peer's NID in the src_nid, and
- * LNET_MSG_HELLO in the type field.  All other common fields are zero
- * (including payload_size; i.e. no payload).
- * This is for use by byte-stream LNDs (e.g. TCP/IP) to check the peer is
- * running the same protocol and to find out its NID. These LNDs should
- * exchange HELLO messages when a connection is first established.  Individual
- * LNDs can put whatever else they fancy in lnet_hdr_t::msg.
- */
-typedef struct {
-	__u32	magic;		/* LNET_PROTO_TCP_MAGIC */
-	__u16	version_major;	/* increment on incompatible change */
-	__u16	version_minor;	/* increment on compatible change */
-} WIRE_ATTR lnet_magicversion_t;
-
-/* PROTO MAGIC for LNDs */
-#define LNET_PROTO_IB_MAGIC		0x0be91b91
-#define LNET_PROTO_GNI_MAGIC		0xb00fbabe /* ask Kim */
-#define LNET_PROTO_TCP_MAGIC		0xeebc0ded
-#define LNET_PROTO_ACCEPTOR_MAGIC	0xacce7100
-#define LNET_PROTO_PING_MAGIC		0x70696E67 /* 'ping' */
-
-/* Placeholder for a future "unified" protocol across all LNDs */
-/* Current LNDs that receive a request with this magic will respond with a
- * "stub" reply using their current protocol */
-#define LNET_PROTO_MAGIC		0x45726963 /* ! */
-
-#define LNET_PROTO_TCP_VERSION_MAJOR	1
-#define LNET_PROTO_TCP_VERSION_MINOR	0
-
-/* Acceptor connection request */
-typedef struct {
-	__u32	acr_magic;		/* PTL_ACCEPTOR_PROTO_MAGIC */
-	__u32	acr_version;		/* protocol version */
-	__u64	acr_nid;		/* target NID */
-} WIRE_ATTR lnet_acceptor_connreq_t;
-
-#define LNET_PROTO_ACCEPTOR_VERSION	1
-
-typedef struct {
-	lnet_nid_t	ns_nid;
-	__u32		ns_status;
-	__u32		ns_unused;
-} WIRE_ATTR lnet_ni_status_t;
-
-typedef struct {
-	__u32			pi_magic;
-	__u32			pi_features;
-	lnet_pid_t		pi_pid;
-	__u32			pi_nnis;
-	lnet_ni_status_t	pi_ni[0];
-} WIRE_ATTR lnet_ping_info_t;
-
-typedef struct lnet_counters {
-	__u32	msgs_alloc;
-	__u32	msgs_max;
-	__u32	errors;
-	__u32	send_count;
-	__u32	recv_count;
-	__u32	route_count;
-	__u32	drop_count;
-	__u64	send_length;
-	__u64	recv_length;
-	__u64	route_length;
-	__u64	drop_length;
-} WIRE_ATTR lnet_counters_t;
-
-#define LNET_NI_STATUS_UP      0x15aac0de
-#define LNET_NI_STATUS_DOWN    0xdeadface
-#define LNET_NI_STATUS_INVALID 0x00000000
-
-#define LNET_MAX_INTERFACES    16
-
-/*
- * Objects maintained by the LNet are accessed through handles. Handle types
- * have names of the form lnet_handle_xx_t, where xx is one of the two letter
- * object type codes ('eq' for event queue, 'md' for memory descriptor, and
- * 'me' for match entry).
- * Each type of object is given a unique handle type to enhance type checking.
- * The type lnet_handle_any_t can be used when a generic handle is needed.
- * Every handle value can be converted into a value of type lnet_handle_any_t
- * without loss of information.
- */
-typedef struct {
-	__u64	 cookie;
-} lnet_handle_any_t;
-
-typedef lnet_handle_any_t lnet_handle_eq_t;
-typedef lnet_handle_any_t lnet_handle_md_t;
-typedef lnet_handle_any_t lnet_handle_me_t;
-
-#define LNET_WIRE_HANDLE_COOKIE_NONE   (-1)
-
-/**
- * Invalidate handle \a h.
- */
-static inline void LNetInvalidateHandle(lnet_handle_any_t *h)
-{
-	h->cookie = LNET_WIRE_HANDLE_COOKIE_NONE;
-}
-
-/**
- * Compare handles \a h1 and \a h2.
- *
- * \return 1 if handles are equal, 0 if otherwise.
- */
-static inline int LNetHandleIsEqual(lnet_handle_any_t h1, lnet_handle_any_t h2)
-{
-	return h1.cookie == h2.cookie;
-}
-
-/**
- * Check whether handle \a h is invalid.
- *
- * \return 1 if handle is invalid, 0 if valid.
- */
-static inline int LNetHandleIsInvalid(lnet_handle_any_t h)
-{
-	return LNET_WIRE_HANDLE_COOKIE_NONE == h.cookie;
-}
-
-/**
- * Global process ID.
- */
-typedef struct {
-	/** node id */
-	lnet_nid_t nid;
-	/** process id */
-	lnet_pid_t pid;
-} lnet_process_id_t;
-/** @} lnet_addr */
-
-/** \addtogroup lnet_me
- * @{ */
-
-/**
- * Specifies whether the match entry or memory descriptor should be unlinked
- * automatically (LNET_UNLINK) or not (LNET_RETAIN).
- */
-typedef enum {
-	LNET_RETAIN = 0,
-	LNET_UNLINK
-} lnet_unlink_t;
-
-/**
- * Values of the type lnet_ins_pos_t are used to control where a new match
- * entry is inserted. The value LNET_INS_BEFORE is used to insert the new
- * entry before the current entry or before the head of the list. The value
- * LNET_INS_AFTER is used to insert the new entry after the current entry
- * or after the last item in the list.
- */
-typedef enum {
-	/** insert ME before current position or head of the list */
-	LNET_INS_BEFORE,
-	/** insert ME after current position or tail of the list */
-	LNET_INS_AFTER,
-	/** attach ME at tail of local CPU partition ME list */
-	LNET_INS_LOCAL
-} lnet_ins_pos_t;
-
-/** @} lnet_me */
-
-/** \addtogroup lnet_md
- * @{ */
-
-/**
- * Defines the visible parts of a memory descriptor. Values of this type
- * are used to initialize memory descriptors.
- */
-typedef struct {
-	/**
-	 * Specify the memory region associated with the memory descriptor.
-	 * If the options field has:
-	 * - LNET_MD_KIOV bit set: The start field points to the starting
-	 * address of an array of lnet_kiov_t and the length field specifies
-	 * the number of entries in the array. The length can't be bigger
-	 * than LNET_MAX_IOV. The lnet_kiov_t is used to describe page-based
-	 * fragments that are not necessarily mapped in virtual memory.
-	 * - LNET_MD_IOVEC bit set: The start field points to the starting
-	 * address of an array of struct iovec and the length field specifies
-	 * the number of entries in the array. The length can't be bigger
-	 * than LNET_MAX_IOV. The struct iovec is used to describe fragments
-	 * that have virtual addresses.
-	 * - Otherwise: The memory region is contiguous. The start field
-	 * specifies the starting address for the memory region and the
-	 * length field specifies its length.
-	 *
-	 * When the memory region is fragmented, all fragments but the first
-	 * one must start on page boundary, and all but the last must end on
-	 * page boundary.
-	 */
-	void		*start;
-	unsigned int	 length;
-	/**
-	 * Specifies the maximum number of operations that can be performed
-	 * on the memory descriptor. An operation is any action that could
-	 * possibly generate an event. In the usual case, the threshold value
-	 * is decremented for each operation on the MD. When the threshold
-	 * drops to zero, the MD becomes inactive and does not respond to
-	 * operations. A threshold value of LNET_MD_THRESH_INF indicates that
-	 * there is no bound on the number of operations that may be applied
-	 * to a MD.
-	 */
-	int		 threshold;
-	/**
-	 * Specifies the largest incoming request that the memory descriptor
-	 * should respond to. When the unused portion of a MD (length -
-	 * local offset) falls below this value, the MD becomes inactive and
-	 * does not respond to further operations. This value is only used
-	 * if the LNET_MD_MAX_SIZE option is set.
-	 */
-	int		 max_size;
-	/**
-	 * Specifies the behavior of the memory descriptor. A bitwise OR
-	 * of the following values can be used:
-	 * - LNET_MD_OP_PUT: The LNet PUT operation is allowed on this MD.
-	 * - LNET_MD_OP_GET: The LNet GET operation is allowed on this MD.
-	 * - LNET_MD_MANAGE_REMOTE: The offset used in accessing the memory
-	 *   region is provided by the incoming request. By default, the
-	 *   offset is maintained locally. When maintained locally, the
-	 *   offset is incremented by the length of the request so that
-	 *   the next operation (PUT or GET) will access the next part of
-	 *   the memory region. Note that only one offset variable exists
-	 *   per memory descriptor. If both PUT and GET operations are
-	 *   performed on a memory descriptor, the offset is updated each time.
-	 * - LNET_MD_TRUNCATE: The length provided in the incoming request can
-	 *   be reduced to match the memory available in the region (determined
-	 *   by subtracting the offset from the length of the memory region).
-	 *   By default, if the length in the incoming operation is greater
-	 *   than the amount of memory available, the operation is rejected.
-	 * - LNET_MD_ACK_DISABLE: An acknowledgment should not be sent for
-	 *   incoming PUT operations, even if requested. By default,
-	 *   acknowledgments are sent for PUT operations that request an
-	 *   acknowledgment. Acknowledgments are never sent for GET operations.
-	 *   The data sent in the REPLY serves as an implicit acknowledgment.
-	 * - LNET_MD_KIOV: The start and length fields specify an array of
-	 *   lnet_kiov_t.
-	 * - LNET_MD_IOVEC: The start and length fields specify an array of
-	 *   struct iovec.
-	 * - LNET_MD_MAX_SIZE: The max_size field is valid.
-	 *
-	 * Note:
-	 * - LNET_MD_KIOV or LNET_MD_IOVEC allows for a scatter/gather
-	 *   capability for memory descriptors. They can't be both set.
-	 * - When LNET_MD_MAX_SIZE is set, the total length of the memory
-	 *   region (i.e. sum of all fragment lengths) must not be less than
-	 *   \a max_size.
-	 */
-	unsigned int	 options;
-	/**
-	 * A user-specified value that is associated with the memory
-	 * descriptor. The value does not need to be a pointer, but must fit
-	 * in the space used by a pointer. This value is recorded in events
-	 * associated with operations on this MD.
-	 */
-	void		*user_ptr;
-	/**
-	 * A handle for the event queue used to log the operations performed on
-	 * the memory region. If this argument is a NULL handle (i.e. nullified
-	 * by LNetInvalidateHandle()), operations performed on this memory
-	 * descriptor are not logged.
-	 */
-	lnet_handle_eq_t eq_handle;
-} lnet_md_t;
-
-/* Max Transfer Unit (minimum supported everywhere).
- * CAVEAT EMPTOR, with multinet (i.e. routers forwarding between networks)
- * these limits are system wide and not interface-local. */
-#define LNET_MTU_BITS	20
-#define LNET_MTU	(1 << LNET_MTU_BITS)
-
-/** limit on the number of fragments in discontiguous MDs */
-#define LNET_MAX_IOV	256
-
-/**
- * Options for the MD structure. See lnet_md_t::options.
- */
-#define LNET_MD_OP_PUT		(1 << 0)
-/** See lnet_md_t::options. */
-#define LNET_MD_OP_GET		(1 << 1)
-/** See lnet_md_t::options. */
-#define LNET_MD_MANAGE_REMOTE	(1 << 2)
-/* unused			(1 << 3) */
-/** See lnet_md_t::options. */
-#define LNET_MD_TRUNCATE	(1 << 4)
-/** See lnet_md_t::options. */
-#define LNET_MD_ACK_DISABLE	(1 << 5)
-/** See lnet_md_t::options. */
-#define LNET_MD_IOVEC		(1 << 6)
-/** See lnet_md_t::options. */
-#define LNET_MD_MAX_SIZE	(1 << 7)
-/** See lnet_md_t::options. */
-#define LNET_MD_KIOV		(1 << 8)
-
-/* For compatibility with Cray Portals */
-#define LNET_MD_PHYS		0
-
-/** Infinite threshold on MD operations. See lnet_md_t::threshold */
-#define LNET_MD_THRESH_INF	(-1)
-
-/* NB lustre portals uses struct iovec internally! */
-typedef struct iovec lnet_md_iovec_t;
-
-/**
- * A page-based fragment of a MD.
- */
-typedef struct {
-	/** Pointer to the page where the fragment resides */
-	struct page	*kiov_page;
-	/** Length in bytes of the fragment */
-	unsigned int	 kiov_len;
-	/**
-	 * Starting offset of the fragment within the page. Note that the
-	 * end of the fragment must not pass the end of the page; i.e.,
-	 * kiov_len + kiov_offset <= PAGE_CACHE_SIZE.
-	 */
-	unsigned int	 kiov_offset;
-} lnet_kiov_t;
-/** @} lnet_md */
-
-/** \addtogroup lnet_eq
- * @{ */
-
-/**
- * Six types of events can be logged in an event queue.
- */
-typedef enum {
-	/** An incoming GET operation has completed on the MD. */
-	LNET_EVENT_GET		= 1,
-	/**
-	 * An incoming PUT operation has completed on the MD. The
-	 * underlying layers will not alter the memory (on behalf of this
-	 * operation) once this event has been logged.
-	 */
-	LNET_EVENT_PUT,
-	/**
-	 * A REPLY operation has completed. This event is logged after the
-	 * data (if any) from the REPLY has been written into the MD.
-	 */
-	LNET_EVENT_REPLY,
-	/** An acknowledgment has been received. */
-	LNET_EVENT_ACK,
-	/**
-	 * An outgoing send (PUT or GET) operation has completed. This event
-	 * is logged after the entire buffer has been sent and it is safe for
-	 * the caller to reuse the buffer.
-	 *
-	 * Note:
-	 * - The LNET_EVENT_SEND doesn't guarantee message delivery. It can
-	 *   happen even when the message has not yet been put out on wire.
-	 * - It's unsafe to assume that in an outgoing GET operation
-	 *   the LNET_EVENT_SEND event would happen before the
-	 *   LNET_EVENT_REPLY event. The same holds for LNET_EVENT_SEND and
-	 *   LNET_EVENT_ACK events in an outgoing PUT operation.
-	 */
-	LNET_EVENT_SEND,
-	/**
-	 * A MD has been unlinked. Note that LNetMDUnlink() does not
-	 * necessarily trigger an LNET_EVENT_UNLINK event.
-	 * \see LNetMDUnlink
-	 */
-	LNET_EVENT_UNLINK,
-} lnet_event_kind_t;
-
-#define LNET_SEQ_BASETYPE	long
-typedef unsigned LNET_SEQ_BASETYPE lnet_seq_t;
-#define LNET_SEQ_GT(a, b)	(((signed LNET_SEQ_BASETYPE)((a) - (b))) > 0)
-
-/**
- * Information about an event on a MD.
- */
-typedef struct {
-	/** The identifier (nid, pid) of the target. */
-	lnet_process_id_t	target;
-	/** The identifier (nid, pid) of the initiator. */
-	lnet_process_id_t	initiator;
-	/**
-	 * The NID of the immediate sender. If the request has been forwarded
-	 * by routers, this is the NID of the last hop; otherwise it's the
-	 * same as the initiator.
-	 */
-	lnet_nid_t		sender;
-	/** Indicates the type of the event. */
-	lnet_event_kind_t	type;
-	/** The portal table index specified in the request */
-	unsigned int		pt_index;
-	/** A copy of the match bits specified in the request. */
-	__u64			match_bits;
-	/** The length (in bytes) specified in the request. */
-	unsigned int		rlength;
-	/**
-	 * The length (in bytes) of the data that was manipulated by the
-	 * operation. For truncated operations, the manipulated length will be
-	 * the number of bytes specified by the MD (possibly with an offset,
-	 * see lnet_md_t). For all other operations, the manipulated length
-	 * will be the length of the requested operation, i.e. rlength.
-	 */
-	unsigned int		mlength;
-	/**
-	 * The handle to the MD associated with the event. The handle may be
-	 * invalid if the MD has been unlinked.
-	 */
-	lnet_handle_md_t	md_handle;
-	/**
-	 * A snapshot of the state of the MD immediately after the event has
-	 * been processed. In particular, the threshold field in md will
-	 * reflect the value of the threshold after the operation occurred.
-	 */
-	lnet_md_t		md;
-	/**
-	 * 64 bits of out-of-band user data. Only valid for LNET_EVENT_PUT.
-	 * \see LNetPut
-	 */
-	__u64			hdr_data;
-	/**
-	 * Indicates the completion status of the operation. It's 0 for
-	 * successful operations, otherwise it's an error code.
-	 */
-	int			status;
-	/**
-	 * Indicates whether the MD has been unlinked. Note that:
-	 * - An event with unlinked set is the last event on the MD.
-	 * - This field is also set for an explicit LNET_EVENT_UNLINK event.
-	 * \see LNetMDUnlink
-	 */
-	int			unlinked;
-	/**
-	 * The displacement (in bytes) into the memory region that the
-	 * operation used. The offset can be determined by the operation for
-	 * a remote managed MD or by the local MD.
-	 * \see lnet_md_t::options
-	 */
-	unsigned int		offset;
-	/**
-	 * The sequence number for this event. Sequence numbers are unique
-	 * to each event.
-	 */
-	volatile lnet_seq_t	sequence;
-} lnet_event_t;
-
-/**
- * Event queue handler function type.
- *
- * The EQ handler runs for each event that is deposited into the EQ. The
- * handler is supplied with a pointer to the event that triggered the
- * handler invocation.
- *
- * The handler must not block, must be reentrant, and must not call any LNet
- * API functions. It should return as quickly as possible.
- */
-typedef void (*lnet_eq_handler_t)(lnet_event_t *event);
-#define LNET_EQ_HANDLER_NONE NULL
-/** @} lnet_eq */
-
-/** \addtogroup lnet_data
- * @{ */
-
-/**
- * Specify whether an acknowledgment should be sent by target when the PUT
- * operation completes (i.e., when the data has been written to a MD of the
- * target process).
- *
- * \see lnet_md_t::options for the discussion on LNET_MD_ACK_DISABLE by which
- * acknowledgments can be disabled for a MD.
- */
-typedef enum {
-	/** Request an acknowledgment */
-	LNET_ACK_REQ,
-	/** Request that no acknowledgment should be generated. */
-	LNET_NOACK_REQ
-} lnet_ack_req_t;
-/** @} lnet_data */
-
-/** @} lnet */
-#endif
diff --git a/drivers/staging/lustre/lnet/Kconfig b/drivers/staging/lustre/lnet/Kconfig
deleted file mode 100644
index 00850eeb6a8c..000000000000
--- a/drivers/staging/lustre/lnet/Kconfig
+++ /dev/null
@@ -1,40 +0,0 @@
-config LNET
-	tristate "Lustre networking subsystem"
-	depends on LUSTRE_FS
-
-config LNET_MAX_PAYLOAD
-	int "Lustre lnet max transfer payload (default 2MB)"
-	depends on LUSTRE_FS
-	default "1048576"
-	help
-	  This option defines the maximum size of payload in bytes that lnet
-	  can put into its transport.
-
-	  If unsure, use default.
-
-config LNET_SELFTEST
-	tristate "Lustre networking self testing"
-	depends on LNET
-	help
-	  Choose Y here if you want to do lnet self testing. To compile this
-	  as a module, choose M here: the module will be called lnet_selftest.
-
-	  To compile this as a kernel modules, choose M here and it will be
-	  called lnet_selftest.
-
-	  If unsure, say N.
-
-	  See also http://wiki.lustre.org/
-
-config LNET_XPRT_IB
-	tristate "LNET infiniband support"
-	depends on LNET && INFINIBAND && INFINIBAND_ADDR_TRANS
-	default LNET && INFINIBAND
-	help
-	  This option allows the LNET users to use infiniband as an
-	  RDMA-enabled transport.
-
-	  To compile this as a kernel module, choose M here and it will be
-	  called ko2iblnd.
-
-	  If unsure, say N.
diff --git a/drivers/staging/lustre/lnet/Makefile b/drivers/staging/lustre/lnet/Makefile
deleted file mode 100644
index f6f03e304d81..000000000000
--- a/drivers/staging/lustre/lnet/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_LNET) += lnet/ klnds/ selftest/
diff --git a/drivers/staging/lustre/lnet/klnds/Makefile b/drivers/staging/lustre/lnet/klnds/Makefile
deleted file mode 100644
index c23e4f67f837..000000000000
--- a/drivers/staging/lustre/lnet/klnds/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_LNET) += o2iblnd/  socklnd/
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/Makefile b/drivers/staging/lustre/lnet/klnds/o2iblnd/Makefile
deleted file mode 100644
index e0a7aa72b7d5..000000000000
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LNET_XPRT_IB) += ko2iblnd.o
-ko2iblnd-y := o2iblnd.o o2iblnd_cb.o o2iblnd_modparams.o
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
deleted file mode 100644
index c29d2ced258c..000000000000
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ /dev/null
@@ -1,2875 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/klnds/o2iblnd/o2iblnd.c
- *
- * Author: Eric Barton <eric@bartonsoftware.com>
- */
-
-#include <asm/div64.h>
-#include <asm/page.h>
-#include "o2iblnd.h"
-
-static lnd_t the_o2iblnd = {
-	.lnd_type     = O2IBLND,
-	.lnd_startup  = kiblnd_startup,
-	.lnd_shutdown = kiblnd_shutdown,
-	.lnd_ctl      = kiblnd_ctl,
-	.lnd_query    = kiblnd_query,
-	.lnd_send     = kiblnd_send,
-	.lnd_recv     = kiblnd_recv,
-};
-
-kib_data_t kiblnd_data;
-
-static __u32 kiblnd_cksum(void *ptr, int nob)
-{
-	char *c = ptr;
-	__u32 sum = 0;
-
-	while (nob-- > 0)
-		sum = ((sum << 1) | (sum >> 31)) + *c++;
-
-	/* ensure I don't return 0 (== no checksum) */
-	return (sum == 0) ? 1 : sum;
-}
-
-static char *kiblnd_msgtype2str(int type)
-{
-	switch (type) {
-	case IBLND_MSG_CONNREQ:
-		return "CONNREQ";
-
-	case IBLND_MSG_CONNACK:
-		return "CONNACK";
-
-	case IBLND_MSG_NOOP:
-		return "NOOP";
-
-	case IBLND_MSG_IMMEDIATE:
-		return "IMMEDIATE";
-
-	case IBLND_MSG_PUT_REQ:
-		return "PUT_REQ";
-
-	case IBLND_MSG_PUT_NAK:
-		return "PUT_NAK";
-
-	case IBLND_MSG_PUT_ACK:
-		return "PUT_ACK";
-
-	case IBLND_MSG_PUT_DONE:
-		return "PUT_DONE";
-
-	case IBLND_MSG_GET_REQ:
-		return "GET_REQ";
-
-	case IBLND_MSG_GET_DONE:
-		return "GET_DONE";
-
-	default:
-		return "???";
-	}
-}
-
-static int kiblnd_msgtype2size(int type)
-{
-	const int hdr_size = offsetof(kib_msg_t, ibm_u);
-
-	switch (type) {
-	case IBLND_MSG_CONNREQ:
-	case IBLND_MSG_CONNACK:
-		return hdr_size + sizeof(kib_connparams_t);
-
-	case IBLND_MSG_NOOP:
-		return hdr_size;
-
-	case IBLND_MSG_IMMEDIATE:
-		return offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[0]);
-
-	case IBLND_MSG_PUT_REQ:
-		return hdr_size + sizeof(kib_putreq_msg_t);
-
-	case IBLND_MSG_PUT_ACK:
-		return hdr_size + sizeof(kib_putack_msg_t);
-
-	case IBLND_MSG_GET_REQ:
-		return hdr_size + sizeof(kib_get_msg_t);
-
-	case IBLND_MSG_PUT_NAK:
-	case IBLND_MSG_PUT_DONE:
-	case IBLND_MSG_GET_DONE:
-		return hdr_size + sizeof(kib_completion_msg_t);
-	default:
-		return -1;
-	}
-}
-
-static int kiblnd_unpack_rd(kib_msg_t *msg, int flip)
-{
-	kib_rdma_desc_t *rd;
-	int nob;
-	int n;
-	int i;
-
-	LASSERT(msg->ibm_type == IBLND_MSG_GET_REQ ||
-		 msg->ibm_type == IBLND_MSG_PUT_ACK);
-
-	rd = msg->ibm_type == IBLND_MSG_GET_REQ ?
-			      &msg->ibm_u.get.ibgm_rd :
-			      &msg->ibm_u.putack.ibpam_rd;
-
-	if (flip) {
-		__swab32s(&rd->rd_key);
-		__swab32s(&rd->rd_nfrags);
-	}
-
-	n = rd->rd_nfrags;
-
-	if (n <= 0 || n > IBLND_MAX_RDMA_FRAGS) {
-		CERROR("Bad nfrags: %d, should be 0 < n <= %d\n",
-		       n, IBLND_MAX_RDMA_FRAGS);
-		return 1;
-	}
-
-	nob = offsetof(kib_msg_t, ibm_u) +
-	      kiblnd_rd_msg_size(rd, msg->ibm_type, n);
-
-	if (msg->ibm_nob < nob) {
-		CERROR("Short %s: %d(%d)\n",
-		       kiblnd_msgtype2str(msg->ibm_type), msg->ibm_nob, nob);
-		return 1;
-	}
-
-	if (!flip)
-		return 0;
-
-	for (i = 0; i < n; i++) {
-		__swab32s(&rd->rd_frags[i].rf_nob);
-		__swab64s(&rd->rd_frags[i].rf_addr);
-	}
-
-	return 0;
-}
-
-void kiblnd_pack_msg(lnet_ni_t *ni, kib_msg_t *msg, int version,
-		     int credits, lnet_nid_t dstnid, __u64 dststamp)
-{
-	kib_net_t *net = ni->ni_data;
-
-	/* CAVEAT EMPTOR! all message fields not set here should have been
-	 * initialised previously. */
-	msg->ibm_magic    = IBLND_MSG_MAGIC;
-	msg->ibm_version  = version;
-	/*   ibm_type */
-	msg->ibm_credits  = credits;
-	/*   ibm_nob */
-	msg->ibm_cksum    = 0;
-	msg->ibm_srcnid   = ni->ni_nid;
-	msg->ibm_srcstamp = net->ibn_incarnation;
-	msg->ibm_dstnid   = dstnid;
-	msg->ibm_dststamp = dststamp;
-
-	if (*kiblnd_tunables.kib_cksum) {
-		/* NB ibm_cksum zero while computing cksum */
-		msg->ibm_cksum = kiblnd_cksum(msg, msg->ibm_nob);
-	}
-}
-
-int kiblnd_unpack_msg(kib_msg_t *msg, int nob)
-{
-	const int hdr_size = offsetof(kib_msg_t, ibm_u);
-	__u32 msg_cksum;
-	__u16 version;
-	int msg_nob;
-	int flip;
-
-	/* 6 bytes are enough to have received magic + version */
-	if (nob < 6) {
-		CERROR("Short message: %d\n", nob);
-		return -EPROTO;
-	}
-
-	if (msg->ibm_magic == IBLND_MSG_MAGIC) {
-		flip = 0;
-	} else if (msg->ibm_magic == __swab32(IBLND_MSG_MAGIC)) {
-		flip = 1;
-	} else {
-		CERROR("Bad magic: %08x\n", msg->ibm_magic);
-		return -EPROTO;
-	}
-
-	version = flip ? __swab16(msg->ibm_version) : msg->ibm_version;
-	if (version != IBLND_MSG_VERSION &&
-	    version != IBLND_MSG_VERSION_1) {
-		CERROR("Bad version: %x\n", version);
-		return -EPROTO;
-	}
-
-	if (nob < hdr_size) {
-		CERROR("Short message: %d\n", nob);
-		return -EPROTO;
-	}
-
-	msg_nob = flip ? __swab32(msg->ibm_nob) : msg->ibm_nob;
-	if (msg_nob > nob) {
-		CERROR("Short message: got %d, wanted %d\n", nob, msg_nob);
-		return -EPROTO;
-	}
-
-	/* checksum must be computed with ibm_cksum zero and BEFORE anything
-	 * gets flipped */
-	msg_cksum = flip ? __swab32(msg->ibm_cksum) : msg->ibm_cksum;
-	msg->ibm_cksum = 0;
-	if (msg_cksum != 0 &&
-	    msg_cksum != kiblnd_cksum(msg, msg_nob)) {
-		CERROR("Bad checksum\n");
-		return -EPROTO;
-	}
-
-	msg->ibm_cksum = msg_cksum;
-
-	if (flip) {
-		/* leave magic unflipped as a clue to peer endianness */
-		msg->ibm_version = version;
-		CLASSERT(sizeof(msg->ibm_type) == 1);
-		CLASSERT(sizeof(msg->ibm_credits) == 1);
-		msg->ibm_nob     = msg_nob;
-		__swab64s(&msg->ibm_srcnid);
-		__swab64s(&msg->ibm_srcstamp);
-		__swab64s(&msg->ibm_dstnid);
-		__swab64s(&msg->ibm_dststamp);
-	}
-
-	if (msg->ibm_srcnid == LNET_NID_ANY) {
-		CERROR("Bad src nid: %s\n", libcfs_nid2str(msg->ibm_srcnid));
-		return -EPROTO;
-	}
-
-	if (msg_nob < kiblnd_msgtype2size(msg->ibm_type)) {
-		CERROR("Short %s: %d(%d)\n", kiblnd_msgtype2str(msg->ibm_type),
-		       msg_nob, kiblnd_msgtype2size(msg->ibm_type));
-		return -EPROTO;
-	}
-
-	switch (msg->ibm_type) {
-	default:
-		CERROR("Unknown message type %x\n", msg->ibm_type);
-		return -EPROTO;
-
-	case IBLND_MSG_NOOP:
-	case IBLND_MSG_IMMEDIATE:
-	case IBLND_MSG_PUT_REQ:
-		break;
-
-	case IBLND_MSG_PUT_ACK:
-	case IBLND_MSG_GET_REQ:
-		if (kiblnd_unpack_rd(msg, flip))
-			return -EPROTO;
-		break;
-
-	case IBLND_MSG_PUT_NAK:
-	case IBLND_MSG_PUT_DONE:
-	case IBLND_MSG_GET_DONE:
-		if (flip)
-			__swab32s(&msg->ibm_u.completion.ibcm_status);
-		break;
-
-	case IBLND_MSG_CONNREQ:
-	case IBLND_MSG_CONNACK:
-		if (flip) {
-			__swab16s(&msg->ibm_u.connparams.ibcp_queue_depth);
-			__swab16s(&msg->ibm_u.connparams.ibcp_max_frags);
-			__swab32s(&msg->ibm_u.connparams.ibcp_max_msg_size);
-		}
-		break;
-	}
-	return 0;
-}
-
-int kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid)
-{
-	kib_peer_t *peer;
-	kib_net_t *net = ni->ni_data;
-	int cpt = lnet_cpt_of_nid(nid);
-	unsigned long flags;
-
-	LASSERT(net != NULL);
-	LASSERT(nid != LNET_NID_ANY);
-
-	LIBCFS_CPT_ALLOC(peer, lnet_cpt_table(), cpt, sizeof(*peer));
-	if (peer == NULL) {
-		CERROR("Cannot allocate peer\n");
-		return -ENOMEM;
-	}
-
-	memset(peer, 0, sizeof(*peer));	 /* zero flags etc */
-
-	peer->ibp_ni = ni;
-	peer->ibp_nid = nid;
-	peer->ibp_error = 0;
-	peer->ibp_last_alive = 0;
-	atomic_set(&peer->ibp_refcount, 1);  /* 1 ref for caller */
-
-	INIT_LIST_HEAD(&peer->ibp_list);     /* not in the peer table yet */
-	INIT_LIST_HEAD(&peer->ibp_conns);
-	INIT_LIST_HEAD(&peer->ibp_tx_queue);
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	/* always called with a ref on ni, which prevents ni being shutdown */
-	LASSERT(net->ibn_shutdown == 0);
-
-	/* npeers only grows with the global lock held */
-	atomic_inc(&net->ibn_npeers);
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	*peerp = peer;
-	return 0;
-}
-
-void kiblnd_destroy_peer(kib_peer_t *peer)
-{
-	kib_net_t *net = peer->ibp_ni->ni_data;
-
-	LASSERT(net != NULL);
-	LASSERT(atomic_read(&peer->ibp_refcount) == 0);
-	LASSERT(!kiblnd_peer_active(peer));
-	LASSERT(peer->ibp_connecting == 0);
-	LASSERT(peer->ibp_accepting == 0);
-	LASSERT(list_empty(&peer->ibp_conns));
-	LASSERT(list_empty(&peer->ibp_tx_queue));
-
-	LIBCFS_FREE(peer, sizeof(*peer));
-
-	/* NB a peer's connections keep a reference on their peer until
-	 * they are destroyed, so we can be assured that _all_ state to do
-	 * with this peer has been cleaned up when its refcount drops to
-	 * zero. */
-	atomic_dec(&net->ibn_npeers);
-}
-
-kib_peer_t *kiblnd_find_peer_locked(lnet_nid_t nid)
-{
-	/* the caller is responsible for accounting the additional reference
-	 * that this creates */
-	struct list_head *peer_list = kiblnd_nid2peerlist(nid);
-	struct list_head *tmp;
-	kib_peer_t *peer;
-
-	list_for_each(tmp, peer_list) {
-
-		peer = list_entry(tmp, kib_peer_t, ibp_list);
-
-		LASSERT(peer->ibp_connecting > 0 || /* creating conns */
-			 peer->ibp_accepting > 0 ||
-			 !list_empty(&peer->ibp_conns));  /* active conn */
-
-		if (peer->ibp_nid != nid)
-			continue;
-
-		CDEBUG(D_NET, "got peer [%p] -> %s (%d) version: %x\n",
-		       peer, libcfs_nid2str(nid),
-		       atomic_read(&peer->ibp_refcount),
-		       peer->ibp_version);
-		return peer;
-	}
-	return NULL;
-}
-
-void kiblnd_unlink_peer_locked(kib_peer_t *peer)
-{
-	LASSERT(list_empty(&peer->ibp_conns));
-
-	LASSERT(kiblnd_peer_active(peer));
-	list_del_init(&peer->ibp_list);
-	/* lose peerlist's ref */
-	kiblnd_peer_decref(peer);
-}
-
-static int kiblnd_get_peer_info(lnet_ni_t *ni, int index,
-				lnet_nid_t *nidp, int *count)
-{
-	kib_peer_t *peer;
-	struct list_head *ptmp;
-	int i;
-	unsigned long flags;
-
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++) {
-
-		list_for_each(ptmp, &kiblnd_data.kib_peers[i]) {
-
-			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT(peer->ibp_connecting > 0 ||
-				 peer->ibp_accepting > 0 ||
-				 !list_empty(&peer->ibp_conns));
-
-			if (peer->ibp_ni != ni)
-				continue;
-
-			if (index-- > 0)
-				continue;
-
-			*nidp = peer->ibp_nid;
-			*count = atomic_read(&peer->ibp_refcount);
-
-			read_unlock_irqrestore(&kiblnd_data.kib_global_lock,
-					       flags);
-			return 0;
-		}
-	}
-
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-	return -ENOENT;
-}
-
-static void kiblnd_del_peer_locked(kib_peer_t *peer)
-{
-	struct list_head *ctmp;
-	struct list_head *cnxt;
-	kib_conn_t *conn;
-
-	if (list_empty(&peer->ibp_conns)) {
-		kiblnd_unlink_peer_locked(peer);
-	} else {
-		list_for_each_safe(ctmp, cnxt, &peer->ibp_conns) {
-			conn = list_entry(ctmp, kib_conn_t, ibc_list);
-
-			kiblnd_close_conn_locked(conn, 0);
-		}
-		/* NB closing peer's last conn unlinked it. */
-	}
-	/* NB peer now unlinked; might even be freed if the peer table had the
-	 * last ref on it. */
-}
-
-static int kiblnd_del_peer(lnet_ni_t *ni, lnet_nid_t nid)
-{
-	LIST_HEAD(zombies);
-	struct list_head *ptmp;
-	struct list_head *pnxt;
-	kib_peer_t *peer;
-	int lo;
-	int hi;
-	int i;
-	unsigned long flags;
-	int rc = -ENOENT;
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	if (nid != LNET_NID_ANY) {
-		lo = hi = kiblnd_nid2peerlist(nid) - kiblnd_data.kib_peers;
-	} else {
-		lo = 0;
-		hi = kiblnd_data.kib_peer_hash_size - 1;
-	}
-
-	for (i = lo; i <= hi; i++) {
-		list_for_each_safe(ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
-			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT(peer->ibp_connecting > 0 ||
-				 peer->ibp_accepting > 0 ||
-				 !list_empty(&peer->ibp_conns));
-
-			if (peer->ibp_ni != ni)
-				continue;
-
-			if (!(nid == LNET_NID_ANY || peer->ibp_nid == nid))
-				continue;
-
-			if (!list_empty(&peer->ibp_tx_queue)) {
-				LASSERT(list_empty(&peer->ibp_conns));
-
-				list_splice_init(&peer->ibp_tx_queue,
-						     &zombies);
-			}
-
-			kiblnd_del_peer_locked(peer);
-			rc = 0;	 /* matched something */
-		}
-	}
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	kiblnd_txlist_done(ni, &zombies, -EIO);
-
-	return rc;
-}
-
-static kib_conn_t *kiblnd_get_conn_by_idx(lnet_ni_t *ni, int index)
-{
-	kib_peer_t *peer;
-	struct list_head *ptmp;
-	kib_conn_t *conn;
-	struct list_head *ctmp;
-	int i;
-	unsigned long flags;
-
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++) {
-		list_for_each(ptmp, &kiblnd_data.kib_peers[i]) {
-
-			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT(peer->ibp_connecting > 0 ||
-				 peer->ibp_accepting > 0 ||
-				 !list_empty(&peer->ibp_conns));
-
-			if (peer->ibp_ni != ni)
-				continue;
-
-			list_for_each(ctmp, &peer->ibp_conns) {
-				if (index-- > 0)
-					continue;
-
-				conn = list_entry(ctmp, kib_conn_t,
-						      ibc_list);
-				kiblnd_conn_addref(conn);
-				read_unlock_irqrestore(
-					&kiblnd_data.kib_global_lock,
-					flags);
-				return conn;
-			}
-		}
-	}
-
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-	return NULL;
-}
-
-int kiblnd_translate_mtu(int value)
-{
-	switch (value) {
-	default:
-		return -1;
-	case 0:
-		return 0;
-	case 256:
-		return IB_MTU_256;
-	case 512:
-		return IB_MTU_512;
-	case 1024:
-		return IB_MTU_1024;
-	case 2048:
-		return IB_MTU_2048;
-	case 4096:
-		return IB_MTU_4096;
-	}
-}
-
-static void kiblnd_setup_mtu_locked(struct rdma_cm_id *cmid)
-{
-	int mtu;
-
-	/* XXX There is no path record for iWARP, set by netdev->change_mtu? */
-	if (cmid->route.path_rec == NULL)
-		return;
-
-	mtu = kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu);
-	LASSERT(mtu >= 0);
-	if (mtu != 0)
-		cmid->route.path_rec->mtu = mtu;
-}
-
-static int kiblnd_get_completion_vector(kib_conn_t *conn, int cpt)
-{
-	cpumask_t *mask;
-	int vectors;
-	int off;
-	int i;
-	lnet_nid_t nid = conn->ibc_peer->ibp_nid;
-
-	vectors = conn->ibc_cmid->device->num_comp_vectors;
-	if (vectors <= 1)
-		return 0;
-
-	mask = cfs_cpt_cpumask(lnet_cpt_table(), cpt);
-	if (mask == NULL)
-		return 0;
-
-	/* hash NID to CPU id in this partition... */
-	off = do_div(nid, cpumask_weight(mask));
-	for_each_cpu(i, mask) {
-		if (off-- == 0)
-			return i % vectors;
-	}
-
-	LBUG();
-	return 1;
-}
-
-kib_conn_t *kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
-				int state, int version)
-{
-	/* CAVEAT EMPTOR:
-	 * If the new conn is created successfully it takes over the caller's
-	 * ref on 'peer'.  It also "owns" 'cmid' and destroys it when it itself
-	 * is destroyed.  On failure, the caller's ref on 'peer' remains and
-	 * she must dispose of 'cmid'.  (Actually I'd block forever if I tried
-	 * to destroy 'cmid' here since I'm called from the CM which still has
-	 * its ref on 'cmid'). */
-	rwlock_t *glock = &kiblnd_data.kib_global_lock;
-	kib_net_t *net = peer->ibp_ni->ni_data;
-	kib_dev_t *dev;
-	struct ib_qp_init_attr *init_qp_attr;
-	struct kib_sched_info *sched;
-	struct ib_cq_init_attr cq_attr = {};
-	kib_conn_t *conn;
-	struct ib_cq *cq;
-	unsigned long flags;
-	int cpt;
-	int rc;
-	int i;
-
-	LASSERT(net != NULL);
-	LASSERT(!in_interrupt());
-
-	dev = net->ibn_dev;
-
-	cpt = lnet_cpt_of_nid(peer->ibp_nid);
-	sched = kiblnd_data.kib_scheds[cpt];
-
-	LASSERT(sched->ibs_nthreads > 0);
-
-	LIBCFS_CPT_ALLOC(init_qp_attr, lnet_cpt_table(), cpt,
-			 sizeof(*init_qp_attr));
-	if (init_qp_attr == NULL) {
-		CERROR("Can't allocate qp_attr for %s\n",
-		       libcfs_nid2str(peer->ibp_nid));
-		goto failed_0;
-	}
-
-	LIBCFS_CPT_ALLOC(conn, lnet_cpt_table(), cpt, sizeof(*conn));
-	if (conn == NULL) {
-		CERROR("Can't allocate connection for %s\n",
-		       libcfs_nid2str(peer->ibp_nid));
-		goto failed_1;
-	}
-
-	conn->ibc_state = IBLND_CONN_INIT;
-	conn->ibc_version = version;
-	conn->ibc_peer = peer;		  /* I take the caller's ref */
-	cmid->context = conn;		   /* for future CM callbacks */
-	conn->ibc_cmid = cmid;
-
-	INIT_LIST_HEAD(&conn->ibc_early_rxs);
-	INIT_LIST_HEAD(&conn->ibc_tx_noops);
-	INIT_LIST_HEAD(&conn->ibc_tx_queue);
-	INIT_LIST_HEAD(&conn->ibc_tx_queue_rsrvd);
-	INIT_LIST_HEAD(&conn->ibc_tx_queue_nocred);
-	INIT_LIST_HEAD(&conn->ibc_active_txs);
-	spin_lock_init(&conn->ibc_lock);
-
-	LIBCFS_CPT_ALLOC(conn->ibc_connvars, lnet_cpt_table(), cpt,
-			 sizeof(*conn->ibc_connvars));
-	if (conn->ibc_connvars == NULL) {
-		CERROR("Can't allocate in-progress connection state\n");
-		goto failed_2;
-	}
-
-	write_lock_irqsave(glock, flags);
-	if (dev->ibd_failover) {
-		write_unlock_irqrestore(glock, flags);
-		CERROR("%s: failover in progress\n", dev->ibd_ifname);
-		goto failed_2;
-	}
-
-	if (dev->ibd_hdev->ibh_ibdev != cmid->device) {
-		/* wakeup failover thread and teardown connection */
-		if (kiblnd_dev_can_failover(dev)) {
-			list_add_tail(&dev->ibd_fail_list,
-				      &kiblnd_data.kib_failed_devs);
-			wake_up(&kiblnd_data.kib_failover_waitq);
-		}
-
-		write_unlock_irqrestore(glock, flags);
-		CERROR("cmid HCA(%s), kib_dev(%s) need failover\n",
-		       cmid->device->name, dev->ibd_ifname);
-		goto failed_2;
-	}
-
-	kiblnd_hdev_addref_locked(dev->ibd_hdev);
-	conn->ibc_hdev = dev->ibd_hdev;
-
-	kiblnd_setup_mtu_locked(cmid);
-
-	write_unlock_irqrestore(glock, flags);
-
-	LIBCFS_CPT_ALLOC(conn->ibc_rxs, lnet_cpt_table(), cpt,
-			 IBLND_RX_MSGS(version) * sizeof(kib_rx_t));
-	if (conn->ibc_rxs == NULL) {
-		CERROR("Cannot allocate RX buffers\n");
-		goto failed_2;
-	}
-
-	rc = kiblnd_alloc_pages(&conn->ibc_rx_pages, cpt,
-				IBLND_RX_MSG_PAGES(version));
-	if (rc != 0)
-		goto failed_2;
-
-	kiblnd_map_rx_descs(conn);
-
-	cq_attr.cqe = IBLND_CQ_ENTRIES(version);
-	cq_attr.comp_vector = kiblnd_get_completion_vector(conn, cpt);
-	cq = ib_create_cq(cmid->device,
-			  kiblnd_cq_completion, kiblnd_cq_event, conn,
-			  &cq_attr);
-	if (IS_ERR(cq)) {
-		CERROR("Can't create CQ: %ld, cqe: %d\n",
-		       PTR_ERR(cq), IBLND_CQ_ENTRIES(version));
-		goto failed_2;
-	}
-
-	conn->ibc_cq = cq;
-
-	rc = ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
-	if (rc != 0) {
-		CERROR("Can't request completion notificiation: %d\n", rc);
-		goto failed_2;
-	}
-
-	init_qp_attr->event_handler = kiblnd_qp_event;
-	init_qp_attr->qp_context = conn;
-	init_qp_attr->cap.max_send_wr = IBLND_SEND_WRS(version);
-	init_qp_attr->cap.max_recv_wr = IBLND_RECV_WRS(version);
-	init_qp_attr->cap.max_send_sge = 1;
-	init_qp_attr->cap.max_recv_sge = 1;
-	init_qp_attr->sq_sig_type = IB_SIGNAL_REQ_WR;
-	init_qp_attr->qp_type = IB_QPT_RC;
-	init_qp_attr->send_cq = cq;
-	init_qp_attr->recv_cq = cq;
-
-	conn->ibc_sched = sched;
-
-	rc = rdma_create_qp(cmid, conn->ibc_hdev->ibh_pd, init_qp_attr);
-	if (rc != 0) {
-		CERROR("Can't create QP: %d, send_wr: %d, recv_wr: %d\n",
-		       rc, init_qp_attr->cap.max_send_wr,
-		       init_qp_attr->cap.max_recv_wr);
-		goto failed_2;
-	}
-
-	LIBCFS_FREE(init_qp_attr, sizeof(*init_qp_attr));
-
-	/* 1 ref for caller and each rxmsg */
-	atomic_set(&conn->ibc_refcount, 1 + IBLND_RX_MSGS(version));
-	conn->ibc_nrx = IBLND_RX_MSGS(version);
-
-	/* post receives */
-	for (i = 0; i < IBLND_RX_MSGS(version); i++) {
-		rc = kiblnd_post_rx(&conn->ibc_rxs[i],
-				    IBLND_POSTRX_NO_CREDIT);
-		if (rc != 0) {
-			CERROR("Can't post rxmsg: %d\n", rc);
-
-			/* Make posted receives complete */
-			kiblnd_abort_receives(conn);
-
-			/* correct # of posted buffers
-			 * NB locking needed now I'm racing with completion */
-			spin_lock_irqsave(&sched->ibs_lock, flags);
-			conn->ibc_nrx -= IBLND_RX_MSGS(version) - i;
-			spin_unlock_irqrestore(&sched->ibs_lock, flags);
-
-			/* cmid will be destroyed by CM(ofed) after cm_callback
-			 * returned, so we can't refer it anymore
-			 * (by kiblnd_connd()->kiblnd_destroy_conn) */
-			rdma_destroy_qp(conn->ibc_cmid);
-			conn->ibc_cmid = NULL;
-
-			/* Drop my own and unused rxbuffer refcounts */
-			while (i++ <= IBLND_RX_MSGS(version))
-				kiblnd_conn_decref(conn);
-
-			return NULL;
-		}
-	}
-
-	/* Init successful! */
-	LASSERT(state == IBLND_CONN_ACTIVE_CONNECT ||
-		 state == IBLND_CONN_PASSIVE_WAIT);
-	conn->ibc_state = state;
-
-	/* 1 more conn */
-	atomic_inc(&net->ibn_nconns);
-	return conn;
-
- failed_2:
-	kiblnd_destroy_conn(conn);
- failed_1:
-	LIBCFS_FREE(init_qp_attr, sizeof(*init_qp_attr));
- failed_0:
-	return NULL;
-}
-
-void kiblnd_destroy_conn(kib_conn_t *conn)
-{
-	struct rdma_cm_id *cmid = conn->ibc_cmid;
-	kib_peer_t *peer = conn->ibc_peer;
-	int rc;
-
-	LASSERT(!in_interrupt());
-	LASSERT(atomic_read(&conn->ibc_refcount) == 0);
-	LASSERT(list_empty(&conn->ibc_early_rxs));
-	LASSERT(list_empty(&conn->ibc_tx_noops));
-	LASSERT(list_empty(&conn->ibc_tx_queue));
-	LASSERT(list_empty(&conn->ibc_tx_queue_rsrvd));
-	LASSERT(list_empty(&conn->ibc_tx_queue_nocred));
-	LASSERT(list_empty(&conn->ibc_active_txs));
-	LASSERT(conn->ibc_noops_posted == 0);
-	LASSERT(conn->ibc_nsends_posted == 0);
-
-	switch (conn->ibc_state) {
-	default:
-		/* conn must be completely disengaged from the network */
-		LBUG();
-
-	case IBLND_CONN_DISCONNECTED:
-		/* connvars should have been freed already */
-		LASSERT(conn->ibc_connvars == NULL);
-		break;
-
-	case IBLND_CONN_INIT:
-		break;
-	}
-
-	/* conn->ibc_cmid might be destroyed by CM already */
-	if (cmid != NULL && cmid->qp != NULL)
-		rdma_destroy_qp(cmid);
-
-	if (conn->ibc_cq != NULL) {
-		rc = ib_destroy_cq(conn->ibc_cq);
-		if (rc != 0)
-			CWARN("Error destroying CQ: %d\n", rc);
-	}
-
-	if (conn->ibc_rx_pages != NULL)
-		kiblnd_unmap_rx_descs(conn);
-
-	if (conn->ibc_rxs != NULL) {
-		LIBCFS_FREE(conn->ibc_rxs,
-			    IBLND_RX_MSGS(conn->ibc_version)
-			      * sizeof(kib_rx_t));
-	}
-
-	if (conn->ibc_connvars != NULL)
-		LIBCFS_FREE(conn->ibc_connvars, sizeof(*conn->ibc_connvars));
-
-	if (conn->ibc_hdev != NULL)
-		kiblnd_hdev_decref(conn->ibc_hdev);
-
-	/* See CAVEAT EMPTOR above in kiblnd_create_conn */
-	if (conn->ibc_state != IBLND_CONN_INIT) {
-		kib_net_t *net = peer->ibp_ni->ni_data;
-
-		kiblnd_peer_decref(peer);
-		rdma_destroy_id(cmid);
-		atomic_dec(&net->ibn_nconns);
-	}
-
-	LIBCFS_FREE(conn, sizeof(*conn));
-}
-
-int kiblnd_close_peer_conns_locked(kib_peer_t *peer, int why)
-{
-	kib_conn_t *conn;
-	struct list_head *ctmp;
-	struct list_head *cnxt;
-	int count = 0;
-
-	list_for_each_safe(ctmp, cnxt, &peer->ibp_conns) {
-		conn = list_entry(ctmp, kib_conn_t, ibc_list);
-
-		CDEBUG(D_NET, "Closing conn -> %s, version: %x, reason: %d\n",
-		       libcfs_nid2str(peer->ibp_nid),
-		       conn->ibc_version, why);
-
-		kiblnd_close_conn_locked(conn, why);
-		count++;
-	}
-
-	return count;
-}
-
-int kiblnd_close_stale_conns_locked(kib_peer_t *peer,
-				     int version, __u64 incarnation)
-{
-	kib_conn_t *conn;
-	struct list_head *ctmp;
-	struct list_head *cnxt;
-	int count = 0;
-
-	list_for_each_safe(ctmp, cnxt, &peer->ibp_conns) {
-		conn = list_entry(ctmp, kib_conn_t, ibc_list);
-
-		if (conn->ibc_version     == version &&
-		    conn->ibc_incarnation == incarnation)
-			continue;
-
-		CDEBUG(D_NET,
-		       "Closing stale conn -> %s version: %x, incarnation:%#llx(%x, %#llx)\n",
-		       libcfs_nid2str(peer->ibp_nid),
-		       conn->ibc_version, conn->ibc_incarnation,
-		       version, incarnation);
-
-		kiblnd_close_conn_locked(conn, -ESTALE);
-		count++;
-	}
-
-	return count;
-}
-
-static int kiblnd_close_matching_conns(lnet_ni_t *ni, lnet_nid_t nid)
-{
-	kib_peer_t *peer;
-	struct list_head *ptmp;
-	struct list_head *pnxt;
-	int lo;
-	int hi;
-	int i;
-	unsigned long flags;
-	int count = 0;
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	if (nid != LNET_NID_ANY)
-		lo = hi = kiblnd_nid2peerlist(nid) - kiblnd_data.kib_peers;
-	else {
-		lo = 0;
-		hi = kiblnd_data.kib_peer_hash_size - 1;
-	}
-
-	for (i = lo; i <= hi; i++) {
-		list_for_each_safe(ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
-
-			peer = list_entry(ptmp, kib_peer_t, ibp_list);
-			LASSERT(peer->ibp_connecting > 0 ||
-				 peer->ibp_accepting > 0 ||
-				 !list_empty(&peer->ibp_conns));
-
-			if (peer->ibp_ni != ni)
-				continue;
-
-			if (!(nid == LNET_NID_ANY || nid == peer->ibp_nid))
-				continue;
-
-			count += kiblnd_close_peer_conns_locked(peer, 0);
-		}
-	}
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	/* wildcards always succeed */
-	if (nid == LNET_NID_ANY)
-		return 0;
-
-	return (count == 0) ? -ENOENT : 0;
-}
-
-int kiblnd_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
-{
-	struct libcfs_ioctl_data *data = arg;
-	int rc = -EINVAL;
-
-	switch (cmd) {
-	case IOC_LIBCFS_GET_PEER: {
-		lnet_nid_t nid = 0;
-		int count = 0;
-
-		rc = kiblnd_get_peer_info(ni, data->ioc_count,
-					  &nid, &count);
-		data->ioc_nid   = nid;
-		data->ioc_count = count;
-		break;
-	}
-
-	case IOC_LIBCFS_DEL_PEER: {
-		rc = kiblnd_del_peer(ni, data->ioc_nid);
-		break;
-	}
-	case IOC_LIBCFS_GET_CONN: {
-		kib_conn_t *conn;
-
-		rc = 0;
-		conn = kiblnd_get_conn_by_idx(ni, data->ioc_count);
-		if (conn == NULL) {
-			rc = -ENOENT;
-			break;
-		}
-
-		LASSERT(conn->ibc_cmid != NULL);
-		data->ioc_nid = conn->ibc_peer->ibp_nid;
-		if (conn->ibc_cmid->route.path_rec == NULL)
-			data->ioc_u32[0] = 0; /* iWarp has no path MTU */
-		else
-			data->ioc_u32[0] =
-			ib_mtu_enum_to_int(conn->ibc_cmid->route.path_rec->mtu);
-		kiblnd_conn_decref(conn);
-		break;
-	}
-	case IOC_LIBCFS_CLOSE_CONNECTION: {
-		rc = kiblnd_close_matching_conns(ni, data->ioc_nid);
-		break;
-	}
-
-	default:
-		break;
-	}
-
-	return rc;
-}
-
-void kiblnd_query(lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
-{
-	unsigned long last_alive = 0;
-	unsigned long now = cfs_time_current();
-	rwlock_t *glock = &kiblnd_data.kib_global_lock;
-	kib_peer_t *peer;
-	unsigned long flags;
-
-	read_lock_irqsave(glock, flags);
-
-	peer = kiblnd_find_peer_locked(nid);
-	if (peer != NULL) {
-		LASSERT(peer->ibp_connecting > 0 || /* creating conns */
-			 peer->ibp_accepting > 0 ||
-			 !list_empty(&peer->ibp_conns));  /* active conn */
-		last_alive = peer->ibp_last_alive;
-	}
-
-	read_unlock_irqrestore(glock, flags);
-
-	if (last_alive != 0)
-		*when = last_alive;
-
-	/* peer is not persistent in hash, trigger peer creation
-	 * and connection establishment with a NULL tx */
-	if (peer == NULL)
-		kiblnd_launch_tx(ni, NULL, nid);
-
-	CDEBUG(D_NET, "Peer %s %p, alive %ld secs ago\n",
-	       libcfs_nid2str(nid), peer,
-	       last_alive ? cfs_duration_sec(now - last_alive) : -1);
-}
-
-void kiblnd_free_pages(kib_pages_t *p)
-{
-	int npages = p->ibp_npages;
-	int i;
-
-	for (i = 0; i < npages; i++) {
-		if (p->ibp_pages[i] != NULL)
-			__free_page(p->ibp_pages[i]);
-	}
-
-	LIBCFS_FREE(p, offsetof(kib_pages_t, ibp_pages[npages]));
-}
-
-int kiblnd_alloc_pages(kib_pages_t **pp, int cpt, int npages)
-{
-	kib_pages_t *p;
-	int i;
-
-	LIBCFS_CPT_ALLOC(p, lnet_cpt_table(), cpt,
-			 offsetof(kib_pages_t, ibp_pages[npages]));
-	if (p == NULL) {
-		CERROR("Can't allocate descriptor for %d pages\n", npages);
-		return -ENOMEM;
-	}
-
-	memset(p, 0, offsetof(kib_pages_t, ibp_pages[npages]));
-	p->ibp_npages = npages;
-
-	for (i = 0; i < npages; i++) {
-		p->ibp_pages[i] = alloc_pages_node(
-				    cfs_cpt_spread_node(lnet_cpt_table(), cpt),
-				    GFP_NOFS, 0);
-		if (p->ibp_pages[i] == NULL) {
-			CERROR("Can't allocate page %d of %d\n", i, npages);
-			kiblnd_free_pages(p);
-			return -ENOMEM;
-		}
-	}
-
-	*pp = p;
-	return 0;
-}
-
-void kiblnd_unmap_rx_descs(kib_conn_t *conn)
-{
-	kib_rx_t *rx;
-	int i;
-
-	LASSERT(conn->ibc_rxs != NULL);
-	LASSERT(conn->ibc_hdev != NULL);
-
-	for (i = 0; i < IBLND_RX_MSGS(conn->ibc_version); i++) {
-		rx = &conn->ibc_rxs[i];
-
-		LASSERT(rx->rx_nob >= 0); /* not posted */
-
-		kiblnd_dma_unmap_single(conn->ibc_hdev->ibh_ibdev,
-					KIBLND_UNMAP_ADDR(rx, rx_msgunmap,
-							  rx->rx_msgaddr),
-					IBLND_MSG_SIZE, DMA_FROM_DEVICE);
-	}
-
-	kiblnd_free_pages(conn->ibc_rx_pages);
-
-	conn->ibc_rx_pages = NULL;
-}
-
-void kiblnd_map_rx_descs(kib_conn_t *conn)
-{
-	kib_rx_t *rx;
-	struct page *pg;
-	int pg_off;
-	int ipg;
-	int i;
-
-	for (pg_off = ipg = i = 0; i < IBLND_RX_MSGS(conn->ibc_version); i++) {
-		pg = conn->ibc_rx_pages->ibp_pages[ipg];
-		rx = &conn->ibc_rxs[i];
-
-		rx->rx_conn = conn;
-		rx->rx_msg = (kib_msg_t *)(((char *)page_address(pg)) + pg_off);
-
-		rx->rx_msgaddr = kiblnd_dma_map_single(conn->ibc_hdev->ibh_ibdev,
-						       rx->rx_msg,
-						       IBLND_MSG_SIZE,
-						       DMA_FROM_DEVICE);
-		LASSERT(!kiblnd_dma_mapping_error(conn->ibc_hdev->ibh_ibdev,
-						   rx->rx_msgaddr));
-		KIBLND_UNMAP_ADDR_SET(rx, rx_msgunmap, rx->rx_msgaddr);
-
-		CDEBUG(D_NET, "rx %d: %p %#llx(%#llx)\n",
-		       i, rx->rx_msg, rx->rx_msgaddr,
-		       (__u64)(page_to_phys(pg) + pg_off));
-
-		pg_off += IBLND_MSG_SIZE;
-		LASSERT(pg_off <= PAGE_SIZE);
-
-		if (pg_off == PAGE_SIZE) {
-			pg_off = 0;
-			ipg++;
-			LASSERT(ipg <= IBLND_RX_MSG_PAGES(conn->ibc_version));
-		}
-	}
-}
-
-static void kiblnd_unmap_tx_pool(kib_tx_pool_t *tpo)
-{
-	kib_hca_dev_t *hdev = tpo->tpo_hdev;
-	kib_tx_t *tx;
-	int i;
-
-	LASSERT(tpo->tpo_pool.po_allocated == 0);
-
-	if (hdev == NULL)
-		return;
-
-	for (i = 0; i < tpo->tpo_pool.po_size; i++) {
-		tx = &tpo->tpo_tx_descs[i];
-		kiblnd_dma_unmap_single(hdev->ibh_ibdev,
-					KIBLND_UNMAP_ADDR(tx, tx_msgunmap,
-							  tx->tx_msgaddr),
-					IBLND_MSG_SIZE, DMA_TO_DEVICE);
-	}
-
-	kiblnd_hdev_decref(hdev);
-	tpo->tpo_hdev = NULL;
-}
-
-static kib_hca_dev_t *kiblnd_current_hdev(kib_dev_t *dev)
-{
-	kib_hca_dev_t *hdev;
-	unsigned long flags;
-	int i = 0;
-
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	while (dev->ibd_failover) {
-		read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-		if (i++ % 50 == 0)
-			CDEBUG(D_NET, "%s: Wait for failover\n",
-			       dev->ibd_ifname);
-		schedule_timeout(cfs_time_seconds(1) / 100);
-
-		read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	}
-
-	kiblnd_hdev_addref_locked(dev->ibd_hdev);
-	hdev = dev->ibd_hdev;
-
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	return hdev;
-}
-
-static void kiblnd_map_tx_pool(kib_tx_pool_t *tpo)
-{
-	kib_pages_t *txpgs = tpo->tpo_tx_pages;
-	kib_pool_t *pool = &tpo->tpo_pool;
-	kib_net_t *net = pool->po_owner->ps_net;
-	kib_dev_t *dev;
-	struct page *page;
-	kib_tx_t *tx;
-	int page_offset;
-	int ipage;
-	int i;
-
-	LASSERT(net != NULL);
-
-	dev = net->ibn_dev;
-
-	/* pre-mapped messages are not bigger than 1 page */
-	CLASSERT(IBLND_MSG_SIZE <= PAGE_SIZE);
-
-	/* No fancy arithmetic when we do the buffer calculations */
-	CLASSERT(PAGE_SIZE % IBLND_MSG_SIZE == 0);
-
-	tpo->tpo_hdev = kiblnd_current_hdev(dev);
-
-	for (ipage = page_offset = i = 0; i < pool->po_size; i++) {
-		page = txpgs->ibp_pages[ipage];
-		tx = &tpo->tpo_tx_descs[i];
-
-		tx->tx_msg = (kib_msg_t *)(((char *)page_address(page)) +
-					   page_offset);
-
-		tx->tx_msgaddr = kiblnd_dma_map_single(
-			tpo->tpo_hdev->ibh_ibdev, tx->tx_msg,
-			IBLND_MSG_SIZE, DMA_TO_DEVICE);
-		LASSERT(!kiblnd_dma_mapping_error(tpo->tpo_hdev->ibh_ibdev,
-						   tx->tx_msgaddr));
-		KIBLND_UNMAP_ADDR_SET(tx, tx_msgunmap, tx->tx_msgaddr);
-
-		list_add(&tx->tx_list, &pool->po_free_list);
-
-		page_offset += IBLND_MSG_SIZE;
-		LASSERT(page_offset <= PAGE_SIZE);
-
-		if (page_offset == PAGE_SIZE) {
-			page_offset = 0;
-			ipage++;
-			LASSERT(ipage <= txpgs->ibp_npages);
-		}
-	}
-}
-
-struct ib_mr *kiblnd_find_dma_mr(kib_hca_dev_t *hdev, __u64 addr, __u64 size)
-{
-	__u64 index;
-
-	LASSERT(hdev->ibh_mrs[0] != NULL);
-
-	if (hdev->ibh_nmrs == 1)
-		return hdev->ibh_mrs[0];
-
-	index = addr >> hdev->ibh_mr_shift;
-
-	if (index <  hdev->ibh_nmrs &&
-	    index == ((addr + size - 1) >> hdev->ibh_mr_shift))
-		return hdev->ibh_mrs[index];
-
-	return NULL;
-}
-
-struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd)
-{
-	struct ib_mr *prev_mr;
-	struct ib_mr *mr;
-	int i;
-
-	LASSERT(hdev->ibh_mrs[0] != NULL);
-
-	if (*kiblnd_tunables.kib_map_on_demand > 0 &&
-	    *kiblnd_tunables.kib_map_on_demand <= rd->rd_nfrags)
-		return NULL;
-
-	if (hdev->ibh_nmrs == 1)
-		return hdev->ibh_mrs[0];
-
-	for (i = 0, mr = prev_mr = NULL;
-	     i < rd->rd_nfrags; i++) {
-		mr = kiblnd_find_dma_mr(hdev,
-					rd->rd_frags[i].rf_addr,
-					rd->rd_frags[i].rf_nob);
-		if (prev_mr == NULL)
-			prev_mr = mr;
-
-		if (mr == NULL || prev_mr != mr) {
-			/* Can't covered by one single MR */
-			mr = NULL;
-			break;
-		}
-	}
-
-	return mr;
-}
-
-static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *pool)
-{
-	LASSERT(pool->fpo_map_count == 0);
-
-	if (pool->fpo_fmr_pool != NULL)
-		ib_destroy_fmr_pool(pool->fpo_fmr_pool);
-
-	if (pool->fpo_hdev != NULL)
-		kiblnd_hdev_decref(pool->fpo_hdev);
-
-	LIBCFS_FREE(pool, sizeof(kib_fmr_pool_t));
-}
-
-static void kiblnd_destroy_fmr_pool_list(struct list_head *head)
-{
-	kib_fmr_pool_t *pool;
-
-	while (!list_empty(head)) {
-		pool = list_entry(head->next, kib_fmr_pool_t, fpo_list);
-		list_del(&pool->fpo_list);
-		kiblnd_destroy_fmr_pool(pool);
-	}
-}
-
-static int kiblnd_fmr_pool_size(int ncpts)
-{
-	int size = *kiblnd_tunables.kib_fmr_pool_size / ncpts;
-
-	return max(IBLND_FMR_POOL, size);
-}
-
-static int kiblnd_fmr_flush_trigger(int ncpts)
-{
-	int size = *kiblnd_tunables.kib_fmr_flush_trigger / ncpts;
-
-	return max(IBLND_FMR_POOL_FLUSH, size);
-}
-
-static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps,
-				  kib_fmr_pool_t **pp_fpo)
-{
-	/* FMR pool for RDMA */
-	kib_dev_t *dev = fps->fps_net->ibn_dev;
-	kib_fmr_pool_t *fpo;
-	struct ib_fmr_pool_param param = {
-		.max_pages_per_fmr = LNET_MAX_PAYLOAD/PAGE_SIZE,
-		.page_shift        = PAGE_SHIFT,
-		.access            = (IB_ACCESS_LOCAL_WRITE |
-				      IB_ACCESS_REMOTE_WRITE),
-		.pool_size         = fps->fps_pool_size,
-		.dirty_watermark   = fps->fps_flush_trigger,
-		.flush_function    = NULL,
-		.flush_arg         = NULL,
-		.cache             = !!*kiblnd_tunables.kib_fmr_cache};
-	int rc;
-
-	LIBCFS_CPT_ALLOC(fpo, lnet_cpt_table(), fps->fps_cpt, sizeof(*fpo));
-	if (fpo == NULL)
-		return -ENOMEM;
-
-	fpo->fpo_hdev = kiblnd_current_hdev(dev);
-
-	fpo->fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd, &param);
-	if (IS_ERR(fpo->fpo_fmr_pool)) {
-		rc = PTR_ERR(fpo->fpo_fmr_pool);
-		CERROR("Failed to create FMR pool: %d\n", rc);
-
-		kiblnd_hdev_decref(fpo->fpo_hdev);
-		LIBCFS_FREE(fpo, sizeof(kib_fmr_pool_t));
-		return rc;
-	}
-
-	fpo->fpo_deadline = cfs_time_shift(IBLND_POOL_DEADLINE);
-	fpo->fpo_owner    = fps;
-	*pp_fpo = fpo;
-
-	return 0;
-}
-
-static void kiblnd_fail_fmr_poolset(kib_fmr_poolset_t *fps,
-				    struct list_head *zombies)
-{
-	if (fps->fps_net == NULL) /* intialized? */
-		return;
-
-	spin_lock(&fps->fps_lock);
-
-	while (!list_empty(&fps->fps_pool_list)) {
-		kib_fmr_pool_t *fpo = list_entry(fps->fps_pool_list.next,
-						 kib_fmr_pool_t, fpo_list);
-		fpo->fpo_failed = 1;
-		list_del(&fpo->fpo_list);
-		if (fpo->fpo_map_count == 0)
-			list_add(&fpo->fpo_list, zombies);
-		else
-			list_add(&fpo->fpo_list, &fps->fps_failed_pool_list);
-	}
-
-	spin_unlock(&fps->fps_lock);
-}
-
-static void kiblnd_fini_fmr_poolset(kib_fmr_poolset_t *fps)
-{
-	if (fps->fps_net != NULL) { /* initialized? */
-		kiblnd_destroy_fmr_pool_list(&fps->fps_failed_pool_list);
-		kiblnd_destroy_fmr_pool_list(&fps->fps_pool_list);
-	}
-}
-
-static int kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt,
-				   kib_net_t *net, int pool_size,
-				   int flush_trigger)
-{
-	kib_fmr_pool_t *fpo;
-	int rc;
-
-	memset(fps, 0, sizeof(kib_fmr_poolset_t));
-
-	fps->fps_net = net;
-	fps->fps_cpt = cpt;
-	fps->fps_pool_size = pool_size;
-	fps->fps_flush_trigger = flush_trigger;
-	spin_lock_init(&fps->fps_lock);
-	INIT_LIST_HEAD(&fps->fps_pool_list);
-	INIT_LIST_HEAD(&fps->fps_failed_pool_list);
-
-	rc = kiblnd_create_fmr_pool(fps, &fpo);
-	if (rc == 0)
-		list_add_tail(&fpo->fpo_list, &fps->fps_pool_list);
-
-	return rc;
-}
-
-static int kiblnd_fmr_pool_is_idle(kib_fmr_pool_t *fpo, unsigned long now)
-{
-	if (fpo->fpo_map_count != 0) /* still in use */
-		return 0;
-	if (fpo->fpo_failed)
-		return 1;
-	return cfs_time_aftereq(now, fpo->fpo_deadline);
-}
-
-void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status)
-{
-	LIST_HEAD(zombies);
-	kib_fmr_pool_t *fpo = fmr->fmr_pool;
-	kib_fmr_poolset_t *fps = fpo->fpo_owner;
-	unsigned long now = cfs_time_current();
-	kib_fmr_pool_t *tmp;
-	int rc;
-
-	rc = ib_fmr_pool_unmap(fmr->fmr_pfmr);
-	LASSERT(rc == 0);
-
-	if (status != 0) {
-		rc = ib_flush_fmr_pool(fpo->fpo_fmr_pool);
-		LASSERT(rc == 0);
-	}
-
-	fmr->fmr_pool = NULL;
-	fmr->fmr_pfmr = NULL;
-
-	spin_lock(&fps->fps_lock);
-	fpo->fpo_map_count--;  /* decref the pool */
-
-	list_for_each_entry_safe(fpo, tmp, &fps->fps_pool_list, fpo_list) {
-		/* the first pool is persistent */
-		if (fps->fps_pool_list.next == &fpo->fpo_list)
-			continue;
-
-		if (kiblnd_fmr_pool_is_idle(fpo, now)) {
-			list_move(&fpo->fpo_list, &zombies);
-			fps->fps_version++;
-		}
-	}
-	spin_unlock(&fps->fps_lock);
-
-	if (!list_empty(&zombies))
-		kiblnd_destroy_fmr_pool_list(&zombies);
-}
-
-int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages,
-			__u64 iov, kib_fmr_t *fmr)
-{
-	struct ib_pool_fmr *pfmr;
-	kib_fmr_pool_t *fpo;
-	__u64 version;
-	int rc;
-
- again:
-	spin_lock(&fps->fps_lock);
-	version = fps->fps_version;
-	list_for_each_entry(fpo, &fps->fps_pool_list, fpo_list) {
-		fpo->fpo_deadline = cfs_time_shift(IBLND_POOL_DEADLINE);
-		fpo->fpo_map_count++;
-		spin_unlock(&fps->fps_lock);
-
-		pfmr = ib_fmr_pool_map_phys(fpo->fpo_fmr_pool,
-					    pages, npages, iov);
-		if (likely(!IS_ERR(pfmr))) {
-			fmr->fmr_pool = fpo;
-			fmr->fmr_pfmr = pfmr;
-			return 0;
-		}
-
-		spin_lock(&fps->fps_lock);
-		fpo->fpo_map_count--;
-		if (PTR_ERR(pfmr) != -EAGAIN) {
-			spin_unlock(&fps->fps_lock);
-			return PTR_ERR(pfmr);
-		}
-
-		/* EAGAIN and ... */
-		if (version != fps->fps_version) {
-			spin_unlock(&fps->fps_lock);
-			goto again;
-		}
-	}
-
-	if (fps->fps_increasing) {
-		spin_unlock(&fps->fps_lock);
-		CDEBUG(D_NET,
-			"Another thread is allocating new FMR pool, waiting for her to complete\n");
-		schedule();
-		goto again;
-
-	}
-
-	if (time_before(cfs_time_current(), fps->fps_next_retry)) {
-		/* someone failed recently */
-		spin_unlock(&fps->fps_lock);
-		return -EAGAIN;
-	}
-
-	fps->fps_increasing = 1;
-	spin_unlock(&fps->fps_lock);
-
-	CDEBUG(D_NET, "Allocate new FMR pool\n");
-	rc = kiblnd_create_fmr_pool(fps, &fpo);
-	spin_lock(&fps->fps_lock);
-	fps->fps_increasing = 0;
-	if (rc == 0) {
-		fps->fps_version++;
-		list_add_tail(&fpo->fpo_list, &fps->fps_pool_list);
-	} else {
-		fps->fps_next_retry = cfs_time_shift(IBLND_POOL_RETRY);
-	}
-	spin_unlock(&fps->fps_lock);
-
-	goto again;
-}
-
-static void kiblnd_fini_pool(kib_pool_t *pool)
-{
-	LASSERT(list_empty(&pool->po_free_list));
-	LASSERT(pool->po_allocated == 0);
-
-	CDEBUG(D_NET, "Finalize %s pool\n", pool->po_owner->ps_name);
-}
-
-static void kiblnd_init_pool(kib_poolset_t *ps, kib_pool_t *pool, int size)
-{
-	CDEBUG(D_NET, "Initialize %s pool\n", ps->ps_name);
-
-	memset(pool, 0, sizeof(kib_pool_t));
-	INIT_LIST_HEAD(&pool->po_free_list);
-	pool->po_deadline = cfs_time_shift(IBLND_POOL_DEADLINE);
-	pool->po_owner    = ps;
-	pool->po_size     = size;
-}
-
-static void kiblnd_destroy_pool_list(struct list_head *head)
-{
-	kib_pool_t *pool;
-
-	while (!list_empty(head)) {
-		pool = list_entry(head->next, kib_pool_t, po_list);
-		list_del(&pool->po_list);
-
-		LASSERT(pool->po_owner != NULL);
-		pool->po_owner->ps_pool_destroy(pool);
-	}
-}
-
-static void kiblnd_fail_poolset(kib_poolset_t *ps, struct list_head *zombies)
-{
-	if (ps->ps_net == NULL) /* intialized? */
-		return;
-
-	spin_lock(&ps->ps_lock);
-	while (!list_empty(&ps->ps_pool_list)) {
-		kib_pool_t *po = list_entry(ps->ps_pool_list.next,
-					    kib_pool_t, po_list);
-		po->po_failed = 1;
-		list_del(&po->po_list);
-		if (po->po_allocated == 0)
-			list_add(&po->po_list, zombies);
-		else
-			list_add(&po->po_list, &ps->ps_failed_pool_list);
-	}
-	spin_unlock(&ps->ps_lock);
-}
-
-static void kiblnd_fini_poolset(kib_poolset_t *ps)
-{
-	if (ps->ps_net != NULL) { /* initialized? */
-		kiblnd_destroy_pool_list(&ps->ps_failed_pool_list);
-		kiblnd_destroy_pool_list(&ps->ps_pool_list);
-	}
-}
-
-static int kiblnd_init_poolset(kib_poolset_t *ps, int cpt,
-			       kib_net_t *net, char *name, int size,
-			       kib_ps_pool_create_t po_create,
-			       kib_ps_pool_destroy_t po_destroy,
-			       kib_ps_node_init_t nd_init,
-			       kib_ps_node_fini_t nd_fini)
-{
-	kib_pool_t *pool;
-	int rc;
-
-	memset(ps, 0, sizeof(kib_poolset_t));
-
-	ps->ps_cpt          = cpt;
-	ps->ps_net          = net;
-	ps->ps_pool_create  = po_create;
-	ps->ps_pool_destroy = po_destroy;
-	ps->ps_node_init    = nd_init;
-	ps->ps_node_fini    = nd_fini;
-	ps->ps_pool_size    = size;
-	if (strlcpy(ps->ps_name, name, sizeof(ps->ps_name))
-	    >= sizeof(ps->ps_name))
-		return -E2BIG;
-	spin_lock_init(&ps->ps_lock);
-	INIT_LIST_HEAD(&ps->ps_pool_list);
-	INIT_LIST_HEAD(&ps->ps_failed_pool_list);
-
-	rc = ps->ps_pool_create(ps, size, &pool);
-	if (rc == 0)
-		list_add(&pool->po_list, &ps->ps_pool_list);
-	else
-		CERROR("Failed to create the first pool for %s\n", ps->ps_name);
-
-	return rc;
-}
-
-static int kiblnd_pool_is_idle(kib_pool_t *pool, unsigned long now)
-{
-	if (pool->po_allocated != 0) /* still in use */
-		return 0;
-	if (pool->po_failed)
-		return 1;
-	return cfs_time_aftereq(now, pool->po_deadline);
-}
-
-void kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node)
-{
-	LIST_HEAD(zombies);
-	kib_poolset_t *ps = pool->po_owner;
-	kib_pool_t *tmp;
-	unsigned long now = cfs_time_current();
-
-	spin_lock(&ps->ps_lock);
-
-	if (ps->ps_node_fini != NULL)
-		ps->ps_node_fini(pool, node);
-
-	LASSERT(pool->po_allocated > 0);
-	list_add(node, &pool->po_free_list);
-	pool->po_allocated--;
-
-	list_for_each_entry_safe(pool, tmp, &ps->ps_pool_list, po_list) {
-		/* the first pool is persistent */
-		if (ps->ps_pool_list.next == &pool->po_list)
-			continue;
-
-		if (kiblnd_pool_is_idle(pool, now))
-			list_move(&pool->po_list, &zombies);
-	}
-	spin_unlock(&ps->ps_lock);
-
-	if (!list_empty(&zombies))
-		kiblnd_destroy_pool_list(&zombies);
-}
-
-struct list_head *kiblnd_pool_alloc_node(kib_poolset_t *ps)
-{
-	struct list_head *node;
-	kib_pool_t *pool;
-	int rc;
-
- again:
-	spin_lock(&ps->ps_lock);
-	list_for_each_entry(pool, &ps->ps_pool_list, po_list) {
-		if (list_empty(&pool->po_free_list))
-			continue;
-
-		pool->po_allocated++;
-		pool->po_deadline = cfs_time_shift(IBLND_POOL_DEADLINE);
-		node = pool->po_free_list.next;
-		list_del(node);
-
-		if (ps->ps_node_init != NULL) {
-			/* still hold the lock */
-			ps->ps_node_init(pool, node);
-		}
-		spin_unlock(&ps->ps_lock);
-		return node;
-	}
-
-	/* no available tx pool and ... */
-	if (ps->ps_increasing) {
-		/* another thread is allocating a new pool */
-		spin_unlock(&ps->ps_lock);
-		CDEBUG(D_NET, "Another thread is allocating new %s pool, waiting for her to complete\n",
-		       ps->ps_name);
-		schedule();
-		goto again;
-	}
-
-	if (time_before(cfs_time_current(), ps->ps_next_retry)) {
-		/* someone failed recently */
-		spin_unlock(&ps->ps_lock);
-		return NULL;
-	}
-
-	ps->ps_increasing = 1;
-	spin_unlock(&ps->ps_lock);
-
-	CDEBUG(D_NET, "%s pool exhausted, allocate new pool\n", ps->ps_name);
-
-	rc = ps->ps_pool_create(ps, ps->ps_pool_size, &pool);
-
-	spin_lock(&ps->ps_lock);
-	ps->ps_increasing = 0;
-	if (rc == 0) {
-		list_add_tail(&pool->po_list, &ps->ps_pool_list);
-	} else {
-		ps->ps_next_retry = cfs_time_shift(IBLND_POOL_RETRY);
-		CERROR("Can't allocate new %s pool because out of memory\n",
-		       ps->ps_name);
-	}
-	spin_unlock(&ps->ps_lock);
-
-	goto again;
-}
-
-static void kiblnd_destroy_tx_pool(kib_pool_t *pool)
-{
-	kib_tx_pool_t *tpo = container_of(pool, kib_tx_pool_t, tpo_pool);
-	int i;
-
-	LASSERT(pool->po_allocated == 0);
-
-	if (tpo->tpo_tx_pages != NULL) {
-		kiblnd_unmap_tx_pool(tpo);
-		kiblnd_free_pages(tpo->tpo_tx_pages);
-	}
-
-	if (tpo->tpo_tx_descs == NULL)
-		goto out;
-
-	for (i = 0; i < pool->po_size; i++) {
-		kib_tx_t *tx = &tpo->tpo_tx_descs[i];
-
-		list_del(&tx->tx_list);
-		if (tx->tx_pages != NULL)
-			LIBCFS_FREE(tx->tx_pages,
-				    LNET_MAX_IOV *
-				    sizeof(*tx->tx_pages));
-		if (tx->tx_frags != NULL)
-			LIBCFS_FREE(tx->tx_frags,
-				    IBLND_MAX_RDMA_FRAGS *
-					    sizeof(*tx->tx_frags));
-		if (tx->tx_wrq != NULL)
-			LIBCFS_FREE(tx->tx_wrq,
-				    (1 + IBLND_MAX_RDMA_FRAGS) *
-				    sizeof(*tx->tx_wrq));
-		if (tx->tx_sge != NULL)
-			LIBCFS_FREE(tx->tx_sge,
-				    (1 + IBLND_MAX_RDMA_FRAGS) *
-				    sizeof(*tx->tx_sge));
-		if (tx->tx_rd != NULL)
-			LIBCFS_FREE(tx->tx_rd,
-				    offsetof(kib_rdma_desc_t,
-					     rd_frags[IBLND_MAX_RDMA_FRAGS]));
-	}
-
-	LIBCFS_FREE(tpo->tpo_tx_descs,
-		    pool->po_size * sizeof(kib_tx_t));
-out:
-	kiblnd_fini_pool(pool);
-	LIBCFS_FREE(tpo, sizeof(kib_tx_pool_t));
-}
-
-static int kiblnd_tx_pool_size(int ncpts)
-{
-	int ntx = *kiblnd_tunables.kib_ntx / ncpts;
-
-	return max(IBLND_TX_POOL, ntx);
-}
-
-static int kiblnd_create_tx_pool(kib_poolset_t *ps, int size,
-				 kib_pool_t **pp_po)
-{
-	int i;
-	int npg;
-	kib_pool_t *pool;
-	kib_tx_pool_t *tpo;
-
-	LIBCFS_CPT_ALLOC(tpo, lnet_cpt_table(), ps->ps_cpt, sizeof(*tpo));
-	if (tpo == NULL) {
-		CERROR("Failed to allocate TX pool\n");
-		return -ENOMEM;
-	}
-
-	pool = &tpo->tpo_pool;
-	kiblnd_init_pool(ps, pool, size);
-	tpo->tpo_tx_descs = NULL;
-	tpo->tpo_tx_pages = NULL;
-
-	npg = (size * IBLND_MSG_SIZE + PAGE_SIZE - 1) / PAGE_SIZE;
-	if (kiblnd_alloc_pages(&tpo->tpo_tx_pages, ps->ps_cpt, npg) != 0) {
-		CERROR("Can't allocate tx pages: %d\n", npg);
-		LIBCFS_FREE(tpo, sizeof(kib_tx_pool_t));
-		return -ENOMEM;
-	}
-
-	LIBCFS_CPT_ALLOC(tpo->tpo_tx_descs, lnet_cpt_table(), ps->ps_cpt,
-			 size * sizeof(kib_tx_t));
-	if (tpo->tpo_tx_descs == NULL) {
-		CERROR("Can't allocate %d tx descriptors\n", size);
-		ps->ps_pool_destroy(pool);
-		return -ENOMEM;
-	}
-
-	memset(tpo->tpo_tx_descs, 0, size * sizeof(kib_tx_t));
-
-	for (i = 0; i < size; i++) {
-		kib_tx_t *tx = &tpo->tpo_tx_descs[i];
-
-		tx->tx_pool = tpo;
-		if (ps->ps_net->ibn_fmr_ps != NULL) {
-			LIBCFS_CPT_ALLOC(tx->tx_pages,
-					 lnet_cpt_table(), ps->ps_cpt,
-					 LNET_MAX_IOV * sizeof(*tx->tx_pages));
-			if (tx->tx_pages == NULL)
-				break;
-		}
-
-		LIBCFS_CPT_ALLOC(tx->tx_frags, lnet_cpt_table(), ps->ps_cpt,
-				 IBLND_MAX_RDMA_FRAGS * sizeof(*tx->tx_frags));
-		if (tx->tx_frags == NULL)
-			break;
-
-		sg_init_table(tx->tx_frags, IBLND_MAX_RDMA_FRAGS);
-
-		LIBCFS_CPT_ALLOC(tx->tx_wrq, lnet_cpt_table(), ps->ps_cpt,
-				 (1 + IBLND_MAX_RDMA_FRAGS) *
-				 sizeof(*tx->tx_wrq));
-		if (tx->tx_wrq == NULL)
-			break;
-
-		LIBCFS_CPT_ALLOC(tx->tx_sge, lnet_cpt_table(), ps->ps_cpt,
-				 (1 + IBLND_MAX_RDMA_FRAGS) *
-				 sizeof(*tx->tx_sge));
-		if (tx->tx_sge == NULL)
-			break;
-
-		LIBCFS_CPT_ALLOC(tx->tx_rd, lnet_cpt_table(), ps->ps_cpt,
-				 offsetof(kib_rdma_desc_t,
-					  rd_frags[IBLND_MAX_RDMA_FRAGS]));
-		if (tx->tx_rd == NULL)
-			break;
-	}
-
-	if (i == size) {
-		kiblnd_map_tx_pool(tpo);
-		*pp_po = pool;
-		return 0;
-	}
-
-	ps->ps_pool_destroy(pool);
-	return -ENOMEM;
-}
-
-static void kiblnd_tx_init(kib_pool_t *pool, struct list_head *node)
-{
-	kib_tx_poolset_t *tps = container_of(pool->po_owner, kib_tx_poolset_t,
-					     tps_poolset);
-	kib_tx_t *tx  = list_entry(node, kib_tx_t, tx_list);
-
-	tx->tx_cookie = tps->tps_next_tx_cookie++;
-}
-
-static void kiblnd_net_fini_pools(kib_net_t *net)
-{
-	int i;
-
-	cfs_cpt_for_each(i, lnet_cpt_table()) {
-		kib_tx_poolset_t *tps;
-		kib_fmr_poolset_t *fps;
-
-		if (net->ibn_tx_ps != NULL) {
-			tps = net->ibn_tx_ps[i];
-			kiblnd_fini_poolset(&tps->tps_poolset);
-		}
-
-		if (net->ibn_fmr_ps != NULL) {
-			fps = net->ibn_fmr_ps[i];
-			kiblnd_fini_fmr_poolset(fps);
-		}
-	}
-
-	if (net->ibn_tx_ps != NULL) {
-		cfs_percpt_free(net->ibn_tx_ps);
-		net->ibn_tx_ps = NULL;
-	}
-
-	if (net->ibn_fmr_ps != NULL) {
-		cfs_percpt_free(net->ibn_fmr_ps);
-		net->ibn_fmr_ps = NULL;
-	}
-}
-
-static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts)
-{
-	unsigned long flags;
-	int cpt;
-	int		rc = 0;
-	int i;
-
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	if (*kiblnd_tunables.kib_map_on_demand == 0 &&
-	    net->ibn_dev->ibd_hdev->ibh_nmrs == 1) {
-		read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-		goto create_tx_pool;
-	}
-
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	if (*kiblnd_tunables.kib_fmr_pool_size <
-	    *kiblnd_tunables.kib_ntx / 4) {
-		CERROR("Can't set fmr pool size (%d) < ntx / 4(%d)\n",
-		       *kiblnd_tunables.kib_fmr_pool_size,
-		       *kiblnd_tunables.kib_ntx / 4);
-		rc = -EINVAL;
-		goto failed;
-	}
-
-	/*
-	 * TX pool must be created later than FMR, see LU-2268
-	 * for details
-	 */
-	LASSERT(net->ibn_tx_ps == NULL);
-
-	/*
-	 * premapping can fail if ibd_nmr > 1, so we always create
-	 * FMR pool and map-on-demand if premapping failed
-	 */
-
-	net->ibn_fmr_ps = cfs_percpt_alloc(lnet_cpt_table(),
-					   sizeof(kib_fmr_poolset_t));
-	if (net->ibn_fmr_ps == NULL) {
-		CERROR("Failed to allocate FMR pool array\n");
-		rc = -ENOMEM;
-		goto failed;
-	}
-
-	for (i = 0; i < ncpts; i++) {
-		cpt = (cpts == NULL) ? i : cpts[i];
-		rc = kiblnd_init_fmr_poolset(net->ibn_fmr_ps[cpt], cpt, net,
-					     kiblnd_fmr_pool_size(ncpts),
-					     kiblnd_fmr_flush_trigger(ncpts));
-		if (rc == -ENOSYS && i == 0) /* no FMR */
-			break;
-
-		if (rc != 0) { /* a real error */
-			CERROR("Can't initialize FMR pool for CPT %d: %d\n",
-			       cpt, rc);
-			goto failed;
-		}
-	}
-
-	if (i > 0) {
-		LASSERT(i == ncpts);
-		goto create_tx_pool;
-	}
-
-	cfs_percpt_free(net->ibn_fmr_ps);
-	net->ibn_fmr_ps = NULL;
-
-	CWARN("Device does not support FMR\n");
-			goto failed;
-
- create_tx_pool:
-	net->ibn_tx_ps = cfs_percpt_alloc(lnet_cpt_table(),
-					  sizeof(kib_tx_poolset_t));
-	if (net->ibn_tx_ps == NULL) {
-		CERROR("Failed to allocate tx pool array\n");
-		rc = -ENOMEM;
-		goto failed;
-	}
-
-	for (i = 0; i < ncpts; i++) {
-		cpt = (cpts == NULL) ? i : cpts[i];
-		rc = kiblnd_init_poolset(&net->ibn_tx_ps[cpt]->tps_poolset,
-					 cpt, net, "TX",
-					 kiblnd_tx_pool_size(ncpts),
-					 kiblnd_create_tx_pool,
-					 kiblnd_destroy_tx_pool,
-					 kiblnd_tx_init, NULL);
-		if (rc != 0) {
-			CERROR("Can't initialize TX pool for CPT %d: %d\n",
-			       cpt, rc);
-			goto failed;
-		}
-	}
-
-	return 0;
- failed:
-	kiblnd_net_fini_pools(net);
-	LASSERT(rc != 0);
-	return rc;
-}
-
-static int kiblnd_hdev_get_attr(kib_hca_dev_t *hdev)
-{
-	struct ib_device_attr *attr;
-	int rc;
-
-	/* It's safe to assume a HCA can handle a page size
-	 * matching that of the native system */
-	hdev->ibh_page_shift = PAGE_SHIFT;
-	hdev->ibh_page_size  = 1 << PAGE_SHIFT;
-	hdev->ibh_page_mask  = ~((__u64)hdev->ibh_page_size - 1);
-
-	LIBCFS_ALLOC(attr, sizeof(*attr));
-	if (attr == NULL) {
-		CERROR("Out of memory\n");
-		return -ENOMEM;
-	}
-
-	rc = ib_query_device(hdev->ibh_ibdev, attr);
-	if (rc == 0)
-		hdev->ibh_mr_size = attr->max_mr_size;
-
-	LIBCFS_FREE(attr, sizeof(*attr));
-
-	if (rc != 0) {
-		CERROR("Failed to query IB device: %d\n", rc);
-		return rc;
-	}
-
-	if (hdev->ibh_mr_size == ~0ULL) {
-		hdev->ibh_mr_shift = 64;
-		return 0;
-	}
-
-	for (hdev->ibh_mr_shift = 0;
-	     hdev->ibh_mr_shift < 64; hdev->ibh_mr_shift++) {
-		if (hdev->ibh_mr_size == (1ULL << hdev->ibh_mr_shift) ||
-		    hdev->ibh_mr_size == (1ULL << hdev->ibh_mr_shift) - 1)
-			return 0;
-	}
-
-	CERROR("Invalid mr size: %#llx\n", hdev->ibh_mr_size);
-	return -EINVAL;
-}
-
-static void kiblnd_hdev_cleanup_mrs(kib_hca_dev_t *hdev)
-{
-	int i;
-
-	if (hdev->ibh_nmrs == 0 || hdev->ibh_mrs == NULL)
-		return;
-
-	for (i = 0; i < hdev->ibh_nmrs; i++) {
-		if (hdev->ibh_mrs[i] == NULL)
-			break;
-
-		ib_dereg_mr(hdev->ibh_mrs[i]);
-	}
-
-	LIBCFS_FREE(hdev->ibh_mrs, sizeof(*hdev->ibh_mrs) * hdev->ibh_nmrs);
-	hdev->ibh_mrs  = NULL;
-	hdev->ibh_nmrs = 0;
-}
-
-void kiblnd_hdev_destroy(kib_hca_dev_t *hdev)
-{
-	kiblnd_hdev_cleanup_mrs(hdev);
-
-	if (hdev->ibh_pd != NULL)
-		ib_dealloc_pd(hdev->ibh_pd);
-
-	if (hdev->ibh_cmid != NULL)
-		rdma_destroy_id(hdev->ibh_cmid);
-
-	LIBCFS_FREE(hdev, sizeof(*hdev));
-}
-
-static int kiblnd_hdev_setup_mrs(kib_hca_dev_t *hdev)
-{
-	struct ib_mr *mr;
-	int rc;
-	int acflags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE;
-
-	rc = kiblnd_hdev_get_attr(hdev);
-	if (rc != 0)
-		return rc;
-
-		LIBCFS_ALLOC(hdev->ibh_mrs, 1 * sizeof(*hdev->ibh_mrs));
-		if (hdev->ibh_mrs == NULL) {
-			CERROR("Failed to allocate MRs table\n");
-			return -ENOMEM;
-		}
-
-		hdev->ibh_mrs[0] = NULL;
-		hdev->ibh_nmrs   = 1;
-
-		mr = ib_get_dma_mr(hdev->ibh_pd, acflags);
-		if (IS_ERR(mr)) {
-			CERROR("Failed ib_get_dma_mr : %ld\n", PTR_ERR(mr));
-			kiblnd_hdev_cleanup_mrs(hdev);
-			return PTR_ERR(mr);
-		}
-
-		hdev->ibh_mrs[0] = mr;
-
-	return 0;
-}
-
-/* DUMMY */
-static int kiblnd_dummy_callback(struct rdma_cm_id *cmid,
-				 struct rdma_cm_event *event)
-{
-	return 0;
-}
-
-static int kiblnd_dev_need_failover(kib_dev_t *dev)
-{
-	struct rdma_cm_id *cmid;
-	struct sockaddr_in srcaddr;
-	struct sockaddr_in dstaddr;
-	int rc;
-
-	if (dev->ibd_hdev == NULL || /* initializing */
-	    dev->ibd_hdev->ibh_cmid == NULL || /* listener is dead */
-	    *kiblnd_tunables.kib_dev_failover > 1) /* debugging */
-		return 1;
-
-	/* XXX: it's UGLY, but I don't have better way to find
-	 * ib-bonding HCA failover because:
-	 *
-	 * a. no reliable CM event for HCA failover...
-	 * b. no OFED API to get ib_device for current net_device...
-	 *
-	 * We have only two choices at this point:
-	 *
-	 * a. rdma_bind_addr(), it will conflict with listener cmid
-	 * b. rdma_resolve_addr() to zero addr */
-	cmid = kiblnd_rdma_create_id(kiblnd_dummy_callback, dev, RDMA_PS_TCP,
-				     IB_QPT_RC);
-	if (IS_ERR(cmid)) {
-		rc = PTR_ERR(cmid);
-		CERROR("Failed to create cmid for failover: %d\n", rc);
-		return rc;
-	}
-
-	memset(&srcaddr, 0, sizeof(srcaddr));
-	srcaddr.sin_family = AF_INET;
-	srcaddr.sin_addr.s_addr = (__force u32)htonl(dev->ibd_ifip);
-
-	memset(&dstaddr, 0, sizeof(dstaddr));
-	dstaddr.sin_family = AF_INET;
-	rc = rdma_resolve_addr(cmid, (struct sockaddr *)&srcaddr,
-			       (struct sockaddr *)&dstaddr, 1);
-	if (rc != 0 || cmid->device == NULL) {
-		CERROR("Failed to bind %s:%pI4h to device(%p): %d\n",
-		       dev->ibd_ifname, &dev->ibd_ifip,
-		       cmid->device, rc);
-		rdma_destroy_id(cmid);
-		return rc;
-	}
-
-	if (dev->ibd_hdev->ibh_ibdev == cmid->device) {
-		/* don't need device failover */
-		rdma_destroy_id(cmid);
-		return 0;
-	}
-
-	return 1;
-}
-
-int kiblnd_dev_failover(kib_dev_t *dev)
-{
-	LIST_HEAD(zombie_tpo);
-	LIST_HEAD(zombie_ppo);
-	LIST_HEAD(zombie_fpo);
-	struct rdma_cm_id *cmid  = NULL;
-	kib_hca_dev_t *hdev  = NULL;
-	struct ib_pd *pd;
-	kib_net_t *net;
-	struct sockaddr_in addr;
-	unsigned long flags;
-	int rc = 0;
-	int i;
-
-	LASSERT(*kiblnd_tunables.kib_dev_failover > 1 ||
-		 dev->ibd_can_failover ||
-		 dev->ibd_hdev == NULL);
-
-	rc = kiblnd_dev_need_failover(dev);
-	if (rc <= 0)
-		goto out;
-
-	if (dev->ibd_hdev != NULL &&
-	    dev->ibd_hdev->ibh_cmid != NULL) {
-		/* XXX it's not good to close old listener at here,
-		 * because we can fail to create new listener.
-		 * But we have to close it now, otherwise rdma_bind_addr
-		 * will return EADDRINUSE... How crap! */
-		write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-		cmid = dev->ibd_hdev->ibh_cmid;
-		/* make next schedule of kiblnd_dev_need_failover()
-		 * return 1 for me */
-		dev->ibd_hdev->ibh_cmid  = NULL;
-		write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-		rdma_destroy_id(cmid);
-	}
-
-	cmid = kiblnd_rdma_create_id(kiblnd_cm_callback, dev, RDMA_PS_TCP,
-				     IB_QPT_RC);
-	if (IS_ERR(cmid)) {
-		rc = PTR_ERR(cmid);
-		CERROR("Failed to create cmid for failover: %d\n", rc);
-		goto out;
-	}
-
-	memset(&addr, 0, sizeof(addr));
-	addr.sin_family      = AF_INET;
-	addr.sin_addr.s_addr = (__force u32)htonl(dev->ibd_ifip);
-	addr.sin_port	= htons(*kiblnd_tunables.kib_service);
-
-	/* Bind to failover device or port */
-	rc = rdma_bind_addr(cmid, (struct sockaddr *)&addr);
-	if (rc != 0 || cmid->device == NULL) {
-		CERROR("Failed to bind %s:%pI4h to device(%p): %d\n",
-		       dev->ibd_ifname, &dev->ibd_ifip,
-		       cmid->device, rc);
-		rdma_destroy_id(cmid);
-		goto out;
-	}
-
-	LIBCFS_ALLOC(hdev, sizeof(*hdev));
-	if (hdev == NULL) {
-		CERROR("Failed to allocate kib_hca_dev\n");
-		rdma_destroy_id(cmid);
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	atomic_set(&hdev->ibh_ref, 1);
-	hdev->ibh_dev   = dev;
-	hdev->ibh_cmid  = cmid;
-	hdev->ibh_ibdev = cmid->device;
-
-	pd = ib_alloc_pd(cmid->device);
-	if (IS_ERR(pd)) {
-		rc = PTR_ERR(pd);
-		CERROR("Can't allocate PD: %d\n", rc);
-		goto out;
-	}
-
-	hdev->ibh_pd = pd;
-
-	rc = rdma_listen(cmid, 0);
-	if (rc != 0) {
-		CERROR("Can't start new listener: %d\n", rc);
-		goto out;
-	}
-
-	rc = kiblnd_hdev_setup_mrs(hdev);
-	if (rc != 0) {
-		CERROR("Can't setup device: %d\n", rc);
-		goto out;
-	}
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	swap(dev->ibd_hdev, hdev); /* take over the refcount */
-
-	list_for_each_entry(net, &dev->ibd_nets, ibn_list) {
-		cfs_cpt_for_each(i, lnet_cpt_table()) {
-			kiblnd_fail_poolset(&net->ibn_tx_ps[i]->tps_poolset,
-					    &zombie_tpo);
-
-			if (net->ibn_fmr_ps)
-				kiblnd_fail_fmr_poolset(net->ibn_fmr_ps[i],
-							&zombie_fpo);
-		}
-	}
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
- out:
-	if (!list_empty(&zombie_tpo))
-		kiblnd_destroy_pool_list(&zombie_tpo);
-	if (!list_empty(&zombie_ppo))
-		kiblnd_destroy_pool_list(&zombie_ppo);
-	if (!list_empty(&zombie_fpo))
-		kiblnd_destroy_fmr_pool_list(&zombie_fpo);
-	if (hdev != NULL)
-		kiblnd_hdev_decref(hdev);
-
-	if (rc != 0)
-		dev->ibd_failed_failover++;
-	else
-		dev->ibd_failed_failover = 0;
-
-	return rc;
-}
-
-void kiblnd_destroy_dev(kib_dev_t *dev)
-{
-	LASSERT(dev->ibd_nnets == 0);
-	LASSERT(list_empty(&dev->ibd_nets));
-
-	list_del(&dev->ibd_fail_list);
-	list_del(&dev->ibd_list);
-
-	if (dev->ibd_hdev != NULL)
-		kiblnd_hdev_decref(dev->ibd_hdev);
-
-	LIBCFS_FREE(dev, sizeof(*dev));
-}
-
-static kib_dev_t *kiblnd_create_dev(char *ifname)
-{
-	struct net_device *netdev;
-	kib_dev_t *dev;
-	__u32 netmask;
-	__u32 ip;
-	int up;
-	int rc;
-
-	rc = lnet_ipif_query(ifname, &up, &ip, &netmask);
-	if (rc != 0) {
-		CERROR("Can't query IPoIB interface %s: %d\n",
-		       ifname, rc);
-		return NULL;
-	}
-
-	if (!up) {
-		CERROR("Can't query IPoIB interface %s: it's down\n", ifname);
-		return NULL;
-	}
-
-	LIBCFS_ALLOC(dev, sizeof(*dev));
-	if (dev == NULL)
-		return NULL;
-
-	netdev = dev_get_by_name(&init_net, ifname);
-	if (netdev == NULL) {
-		dev->ibd_can_failover = 0;
-	} else {
-		dev->ibd_can_failover = !!(netdev->flags & IFF_MASTER);
-		dev_put(netdev);
-	}
-
-	INIT_LIST_HEAD(&dev->ibd_nets);
-	INIT_LIST_HEAD(&dev->ibd_list); /* not yet in kib_devs */
-	INIT_LIST_HEAD(&dev->ibd_fail_list);
-	dev->ibd_ifip = ip;
-	strcpy(&dev->ibd_ifname[0], ifname);
-
-	/* initialize the device */
-	rc = kiblnd_dev_failover(dev);
-	if (rc != 0) {
-		CERROR("Can't initialize device: %d\n", rc);
-		LIBCFS_FREE(dev, sizeof(*dev));
-		return NULL;
-	}
-
-	list_add_tail(&dev->ibd_list,
-			  &kiblnd_data.kib_devs);
-	return dev;
-}
-
-static void kiblnd_base_shutdown(void)
-{
-	struct kib_sched_info *sched;
-	int i;
-
-	LASSERT(list_empty(&kiblnd_data.kib_devs));
-
-	switch (kiblnd_data.kib_init) {
-	default:
-		LBUG();
-
-	case IBLND_INIT_ALL:
-	case IBLND_INIT_DATA:
-		LASSERT(kiblnd_data.kib_peers != NULL);
-		for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++)
-			LASSERT(list_empty(&kiblnd_data.kib_peers[i]));
-		LASSERT(list_empty(&kiblnd_data.kib_connd_zombies));
-		LASSERT(list_empty(&kiblnd_data.kib_connd_conns));
-
-		/* flag threads to terminate; wake and wait for them to die */
-		kiblnd_data.kib_shutdown = 1;
-
-		/* NB: we really want to stop scheduler threads net by net
-		 * instead of the whole module, this should be improved
-		 * with dynamic configuration LNet */
-		cfs_percpt_for_each(sched, i, kiblnd_data.kib_scheds)
-			wake_up_all(&sched->ibs_waitq);
-
-		wake_up_all(&kiblnd_data.kib_connd_waitq);
-		wake_up_all(&kiblnd_data.kib_failover_waitq);
-
-		i = 2;
-		while (atomic_read(&kiblnd_data.kib_nthreads) != 0) {
-			i++;
-			/* power of 2 ? */
-			CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET,
-			       "Waiting for %d threads to terminate\n",
-			       atomic_read(&kiblnd_data.kib_nthreads));
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(cfs_time_seconds(1));
-		}
-
-		/* fall through */
-
-	case IBLND_INIT_NOTHING:
-		break;
-	}
-
-	if (kiblnd_data.kib_peers != NULL) {
-		LIBCFS_FREE(kiblnd_data.kib_peers,
-			    sizeof(struct list_head) *
-			    kiblnd_data.kib_peer_hash_size);
-	}
-
-	if (kiblnd_data.kib_scheds != NULL)
-		cfs_percpt_free(kiblnd_data.kib_scheds);
-
-	kiblnd_data.kib_init = IBLND_INIT_NOTHING;
-	module_put(THIS_MODULE);
-}
-
-void kiblnd_shutdown(lnet_ni_t *ni)
-{
-	kib_net_t *net = ni->ni_data;
-	rwlock_t *g_lock = &kiblnd_data.kib_global_lock;
-	int i;
-	unsigned long flags;
-
-	LASSERT(kiblnd_data.kib_init == IBLND_INIT_ALL);
-
-	if (net == NULL)
-		goto out;
-
-	write_lock_irqsave(g_lock, flags);
-	net->ibn_shutdown = 1;
-	write_unlock_irqrestore(g_lock, flags);
-
-	switch (net->ibn_init) {
-	default:
-		LBUG();
-
-	case IBLND_INIT_ALL:
-		/* nuke all existing peers within this net */
-		kiblnd_del_peer(ni, LNET_NID_ANY);
-
-		/* Wait for all peer state to clean up */
-		i = 2;
-		while (atomic_read(&net->ibn_npeers) != 0) {
-			i++;
-			CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* 2**n? */
-			       "%s: waiting for %d peers to disconnect\n",
-			       libcfs_nid2str(ni->ni_nid),
-			       atomic_read(&net->ibn_npeers));
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(cfs_time_seconds(1));
-		}
-
-		kiblnd_net_fini_pools(net);
-
-		write_lock_irqsave(g_lock, flags);
-		LASSERT(net->ibn_dev->ibd_nnets > 0);
-		net->ibn_dev->ibd_nnets--;
-		list_del(&net->ibn_list);
-		write_unlock_irqrestore(g_lock, flags);
-
-		/* fall through */
-
-	case IBLND_INIT_NOTHING:
-		LASSERT(atomic_read(&net->ibn_nconns) == 0);
-
-		if (net->ibn_dev != NULL &&
-		    net->ibn_dev->ibd_nnets == 0)
-			kiblnd_destroy_dev(net->ibn_dev);
-
-		break;
-	}
-
-	net->ibn_init = IBLND_INIT_NOTHING;
-	ni->ni_data = NULL;
-
-	LIBCFS_FREE(net, sizeof(*net));
-
-out:
-	if (list_empty(&kiblnd_data.kib_devs))
-		kiblnd_base_shutdown();
-}
-
-static int kiblnd_base_startup(void)
-{
-	struct kib_sched_info *sched;
-	int rc;
-	int i;
-
-	LASSERT(kiblnd_data.kib_init == IBLND_INIT_NOTHING);
-
-	try_module_get(THIS_MODULE);
-	/* zero pointers, flags etc */
-	memset(&kiblnd_data, 0, sizeof(kiblnd_data));
-
-	rwlock_init(&kiblnd_data.kib_global_lock);
-
-	INIT_LIST_HEAD(&kiblnd_data.kib_devs);
-	INIT_LIST_HEAD(&kiblnd_data.kib_failed_devs);
-
-	kiblnd_data.kib_peer_hash_size = IBLND_PEER_HASH_SIZE;
-	LIBCFS_ALLOC(kiblnd_data.kib_peers,
-		     sizeof(struct list_head) * kiblnd_data.kib_peer_hash_size);
-	if (kiblnd_data.kib_peers == NULL)
-		goto failed;
-	for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++)
-		INIT_LIST_HEAD(&kiblnd_data.kib_peers[i]);
-
-	spin_lock_init(&kiblnd_data.kib_connd_lock);
-	INIT_LIST_HEAD(&kiblnd_data.kib_connd_conns);
-	INIT_LIST_HEAD(&kiblnd_data.kib_connd_zombies);
-	init_waitqueue_head(&kiblnd_data.kib_connd_waitq);
-	init_waitqueue_head(&kiblnd_data.kib_failover_waitq);
-
-	kiblnd_data.kib_scheds = cfs_percpt_alloc(lnet_cpt_table(),
-						  sizeof(*sched));
-	if (kiblnd_data.kib_scheds == NULL)
-		goto failed;
-
-	cfs_percpt_for_each(sched, i, kiblnd_data.kib_scheds) {
-		int nthrs;
-
-		spin_lock_init(&sched->ibs_lock);
-		INIT_LIST_HEAD(&sched->ibs_conns);
-		init_waitqueue_head(&sched->ibs_waitq);
-
-		nthrs = cfs_cpt_weight(lnet_cpt_table(), i);
-		if (*kiblnd_tunables.kib_nscheds > 0) {
-			nthrs = min(nthrs, *kiblnd_tunables.kib_nscheds);
-		} else {
-			/* max to half of CPUs, another half is reserved for
-			 * upper layer modules */
-			nthrs = min(max(IBLND_N_SCHED, nthrs >> 1), nthrs);
-		}
-
-		sched->ibs_nthreads_max = nthrs;
-		sched->ibs_cpt = i;
-	}
-
-	kiblnd_data.kib_error_qpa.qp_state = IB_QPS_ERR;
-
-	/* lists/ptrs/locks initialised */
-	kiblnd_data.kib_init = IBLND_INIT_DATA;
-	/*****************************************************/
-
-	rc = kiblnd_thread_start(kiblnd_connd, NULL, "kiblnd_connd");
-	if (rc != 0) {
-		CERROR("Can't spawn o2iblnd connd: %d\n", rc);
-		goto failed;
-	}
-
-	if (*kiblnd_tunables.kib_dev_failover != 0)
-		rc = kiblnd_thread_start(kiblnd_failover_thread, NULL,
-					 "kiblnd_failover");
-
-	if (rc != 0) {
-		CERROR("Can't spawn o2iblnd failover thread: %d\n", rc);
-		goto failed;
-	}
-
-	/* flag everything initialised */
-	kiblnd_data.kib_init = IBLND_INIT_ALL;
-	/*****************************************************/
-
-	return 0;
-
- failed:
-	kiblnd_base_shutdown();
-	return -ENETDOWN;
-}
-
-static int kiblnd_start_schedulers(struct kib_sched_info *sched)
-{
-	int rc = 0;
-	int nthrs;
-	int i;
-
-	if (sched->ibs_nthreads == 0) {
-		if (*kiblnd_tunables.kib_nscheds > 0) {
-			nthrs = sched->ibs_nthreads_max;
-		} else {
-			nthrs = cfs_cpt_weight(lnet_cpt_table(),
-					       sched->ibs_cpt);
-			nthrs = min(max(IBLND_N_SCHED, nthrs >> 1), nthrs);
-			nthrs = min(IBLND_N_SCHED_HIGH, nthrs);
-		}
-	} else {
-		LASSERT(sched->ibs_nthreads <= sched->ibs_nthreads_max);
-		/* increase one thread if there is new interface */
-		nthrs = sched->ibs_nthreads < sched->ibs_nthreads_max;
-	}
-
-	for (i = 0; i < nthrs; i++) {
-		long id;
-		char name[20];
-
-		id = KIB_THREAD_ID(sched->ibs_cpt, sched->ibs_nthreads + i);
-		snprintf(name, sizeof(name), "kiblnd_sd_%02ld_%02ld",
-			 KIB_THREAD_CPT(id), KIB_THREAD_TID(id));
-		rc = kiblnd_thread_start(kiblnd_scheduler, (void *)id, name);
-		if (rc == 0)
-			continue;
-
-		CERROR("Can't spawn thread %d for scheduler[%d]: %d\n",
-		       sched->ibs_cpt, sched->ibs_nthreads + i, rc);
-		break;
-	}
-
-	sched->ibs_nthreads += i;
-	return rc;
-}
-
-static int kiblnd_dev_start_threads(kib_dev_t *dev, int newdev, __u32 *cpts,
-				    int ncpts)
-{
-	int cpt;
-	int rc;
-	int i;
-
-	for (i = 0; i < ncpts; i++) {
-		struct kib_sched_info *sched;
-
-		cpt = (cpts == NULL) ? i : cpts[i];
-		sched = kiblnd_data.kib_scheds[cpt];
-
-		if (!newdev && sched->ibs_nthreads > 0)
-			continue;
-
-		rc = kiblnd_start_schedulers(kiblnd_data.kib_scheds[cpt]);
-		if (rc != 0) {
-			CERROR("Failed to start scheduler threads for %s\n",
-			       dev->ibd_ifname);
-			return rc;
-		}
-	}
-	return 0;
-}
-
-static kib_dev_t *kiblnd_dev_search(char *ifname)
-{
-	kib_dev_t *alias = NULL;
-	kib_dev_t *dev;
-	char *colon;
-	char *colon2;
-
-	colon = strchr(ifname, ':');
-	list_for_each_entry(dev, &kiblnd_data.kib_devs, ibd_list) {
-		if (strcmp(&dev->ibd_ifname[0], ifname) == 0)
-			return dev;
-
-		if (alias != NULL)
-			continue;
-
-		colon2 = strchr(dev->ibd_ifname, ':');
-		if (colon != NULL)
-			*colon = 0;
-		if (colon2 != NULL)
-			*colon2 = 0;
-
-		if (strcmp(&dev->ibd_ifname[0], ifname) == 0)
-			alias = dev;
-
-		if (colon != NULL)
-			*colon = ':';
-		if (colon2 != NULL)
-			*colon2 = ':';
-	}
-	return alias;
-}
-
-int kiblnd_startup(lnet_ni_t *ni)
-{
-	char *ifname;
-	kib_dev_t *ibdev = NULL;
-	kib_net_t *net;
-	struct timeval tv;
-	unsigned long flags;
-	int rc;
-	int newdev;
-
-	LASSERT(ni->ni_lnd == &the_o2iblnd);
-
-	if (kiblnd_data.kib_init == IBLND_INIT_NOTHING) {
-		rc = kiblnd_base_startup();
-		if (rc != 0)
-			return rc;
-	}
-
-	LIBCFS_ALLOC(net, sizeof(*net));
-	ni->ni_data = net;
-	if (net == NULL)
-		goto net_failed;
-
-	do_gettimeofday(&tv);
-	net->ibn_incarnation = (((__u64)tv.tv_sec) * 1000000) + tv.tv_usec;
-
-	ni->ni_peertimeout    = *kiblnd_tunables.kib_peertimeout;
-	ni->ni_maxtxcredits   = *kiblnd_tunables.kib_credits;
-	ni->ni_peertxcredits  = *kiblnd_tunables.kib_peertxcredits;
-	ni->ni_peerrtrcredits = *kiblnd_tunables.kib_peerrtrcredits;
-
-	if (ni->ni_interfaces[0] != NULL) {
-		/* Use the IPoIB interface specified in 'networks=' */
-
-		CLASSERT(LNET_MAX_INTERFACES > 1);
-		if (ni->ni_interfaces[1] != NULL) {
-			CERROR("Multiple interfaces not supported\n");
-			goto failed;
-		}
-
-		ifname = ni->ni_interfaces[0];
-	} else {
-		ifname = *kiblnd_tunables.kib_default_ipif;
-	}
-
-	if (strlen(ifname) >= sizeof(ibdev->ibd_ifname)) {
-		CERROR("IPoIB interface name too long: %s\n", ifname);
-		goto failed;
-	}
-
-	ibdev = kiblnd_dev_search(ifname);
-
-	newdev = ibdev == NULL;
-	/* hmm...create kib_dev even for alias */
-	if (ibdev == NULL || strcmp(&ibdev->ibd_ifname[0], ifname) != 0)
-		ibdev = kiblnd_create_dev(ifname);
-
-	if (ibdev == NULL)
-		goto failed;
-
-	net->ibn_dev = ibdev;
-	ni->ni_nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid), ibdev->ibd_ifip);
-
-	rc = kiblnd_dev_start_threads(ibdev, newdev,
-				      ni->ni_cpts, ni->ni_ncpts);
-	if (rc != 0)
-		goto failed;
-
-	rc = kiblnd_net_init_pools(net, ni->ni_cpts, ni->ni_ncpts);
-	if (rc != 0) {
-		CERROR("Failed to initialize NI pools: %d\n", rc);
-		goto failed;
-	}
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	ibdev->ibd_nnets++;
-	list_add_tail(&net->ibn_list, &ibdev->ibd_nets);
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	net->ibn_init = IBLND_INIT_ALL;
-
-	return 0;
-
-failed:
-	if (net->ibn_dev == NULL && ibdev != NULL)
-		kiblnd_destroy_dev(ibdev);
-
-net_failed:
-	kiblnd_shutdown(ni);
-
-	CDEBUG(D_NET, "kiblnd_startup failed\n");
-	return -ENETDOWN;
-}
-
-static void __exit kiblnd_module_fini(void)
-{
-	lnet_unregister_lnd(&the_o2iblnd);
-}
-
-static int __init kiblnd_module_init(void)
-{
-	int rc;
-
-	CLASSERT(sizeof(kib_msg_t) <= IBLND_MSG_SIZE);
-	CLASSERT(offsetof(kib_msg_t,
-		ibm_u.get.ibgm_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
-		<= IBLND_MSG_SIZE);
-	CLASSERT(offsetof(kib_msg_t,
-		ibm_u.putack.ibpam_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
-		<= IBLND_MSG_SIZE);
-
-	rc = kiblnd_tunables_init();
-	if (rc != 0)
-		return rc;
-
-	lnet_register_lnd(&the_o2iblnd);
-
-	return 0;
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Kernel OpenIB gen2 LND v2.00");
-MODULE_LICENSE("GPL");
-
-module_init(kiblnd_module_init);
-module_exit(kiblnd_module_fini);
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
deleted file mode 100644
index f4b6c33ac318..000000000000
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
+++ /dev/null
@@ -1,1017 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/klnds/o2iblnd/o2iblnd.h
- *
- * Author: Eric Barton <eric@bartonsoftware.com>
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <linux/uio.h>
-#include <linux/uaccess.h>
-
-#include <linux/io.h>
-
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/list.h>
-#include <linux/kmod.h>
-#include <linux/sysctl.h>
-#include <linux/pci.h>
-
-#include <net/sock.h>
-#include <linux/in.h>
-
-#define DEBUG_SUBSYSTEM S_LND
-
-#include "../../../include/linux/libcfs/libcfs.h"
-#include "../../../include/linux/lnet/lnet.h"
-#include "../../../include/linux/lnet/lib-lnet.h"
-
-#include <rdma/rdma_cm.h>
-#include <rdma/ib_cm.h>
-#include <rdma/ib_verbs.h>
-#include <rdma/ib_fmr_pool.h>
-
-#define IBLND_PEER_HASH_SIZE		101	/* # peer lists */
-/* # scheduler loops before reschedule */
-#define IBLND_RESCHED			100
-
-#define IBLND_N_SCHED			2
-#define IBLND_N_SCHED_HIGH		4
-
-typedef struct {
-	int          *kib_dev_failover;      /* HCA failover */
-	unsigned int *kib_service;           /* IB service number */
-	int          *kib_min_reconnect_interval; /* first failed connection
-						   * retry... */
-	int          *kib_max_reconnect_interval; /* ...exponentially increasing
-						   * to this */
-	int          *kib_cksum;             /* checksum kib_msg_t? */
-	int          *kib_timeout;           /* comms timeout (seconds) */
-	int          *kib_keepalive;         /* keepalive timeout (seconds) */
-	int          *kib_ntx;               /* # tx descs */
-	int          *kib_credits;           /* # concurrent sends */
-	int          *kib_peertxcredits;     /* # concurrent sends to 1 peer */
-	int          *kib_peerrtrcredits;    /* # per-peer router buffer
-					      * credits */
-	int          *kib_peercredits_hiw;   /* # when eagerly to return
-					      * credits */
-	int          *kib_peertimeout;       /* seconds to consider peer dead */
-	char         **kib_default_ipif;     /* default IPoIB interface */
-	int          *kib_retry_count;
-	int          *kib_rnr_retry_count;
-	int          *kib_concurrent_sends;  /* send work queue sizing */
-	int          *kib_ib_mtu;            /* IB MTU */
-	int          *kib_map_on_demand;     /* map-on-demand if RD has more
-					      * fragments than this value, 0
-					      * disable map-on-demand */
-	int          *kib_fmr_pool_size;     /* # FMRs in pool */
-	int          *kib_fmr_flush_trigger; /* When to trigger FMR flush */
-	int          *kib_fmr_cache;         /* enable FMR pool cache? */
-	int          *kib_require_priv_port; /* accept only privileged ports */
-	int          *kib_use_priv_port;     /* use privileged port for active
-					      * connect */
-	int          *kib_nscheds;           /* # threads on each CPT */
-} kib_tunables_t;
-
-extern kib_tunables_t  kiblnd_tunables;
-
-#define IBLND_MSG_QUEUE_SIZE_V1   8 /* V1 only : # messages/RDMAs in-flight */
-#define IBLND_CREDIT_HIGHWATER_V1 7 /* V1 only : when eagerly to return credits */
-
-#define IBLND_CREDITS_DEFAULT     8 /* default # of peer credits */
-#define IBLND_CREDITS_MAX	  ((typeof(((kib_msg_t *) 0)->ibm_credits)) - 1)  /* Max # of peer credits */
-
-#define IBLND_MSG_QUEUE_SIZE(v)    ((v) == IBLND_MSG_VERSION_1 ? \
-				     IBLND_MSG_QUEUE_SIZE_V1 :   \
-				     *kiblnd_tunables.kib_peertxcredits) /* # messages/RDMAs in-flight */
-#define IBLND_CREDITS_HIGHWATER(v) ((v) == IBLND_MSG_VERSION_1 ? \
-				     IBLND_CREDIT_HIGHWATER_V1 : \
-				     *kiblnd_tunables.kib_peercredits_hiw) /* when eagerly to return credits */
-
-#define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(cb, dev, ps, qpt)
-
-static inline int
-kiblnd_concurrent_sends_v1(void)
-{
-	if (*kiblnd_tunables.kib_concurrent_sends > IBLND_MSG_QUEUE_SIZE_V1 * 2)
-		return IBLND_MSG_QUEUE_SIZE_V1 * 2;
-
-	if (*kiblnd_tunables.kib_concurrent_sends < IBLND_MSG_QUEUE_SIZE_V1 / 2)
-		return IBLND_MSG_QUEUE_SIZE_V1 / 2;
-
-	return *kiblnd_tunables.kib_concurrent_sends;
-}
-
-#define IBLND_CONCURRENT_SENDS(v)  ((v) == IBLND_MSG_VERSION_1 ? \
-				     kiblnd_concurrent_sends_v1() : \
-				     *kiblnd_tunables.kib_concurrent_sends)
-/* 2 OOB shall suffice for 1 keepalive and 1 returning credits */
-#define IBLND_OOB_CAPABLE(v)       ((v) != IBLND_MSG_VERSION_1)
-#define IBLND_OOB_MSGS(v)	   (IBLND_OOB_CAPABLE(v) ? 2 : 0)
-
-#define IBLND_MSG_SIZE	      (4<<10)		 /* max size of queued messages (inc hdr) */
-#define IBLND_MAX_RDMA_FRAGS	 LNET_MAX_IOV	   /* max # of fragments supported */
-#define IBLND_CFG_RDMA_FRAGS       (*kiblnd_tunables.kib_map_on_demand != 0 ? \
-				    *kiblnd_tunables.kib_map_on_demand :      \
-				     IBLND_MAX_RDMA_FRAGS)  /* max # of fragments configured by user */
-#define IBLND_RDMA_FRAGS(v)	((v) == IBLND_MSG_VERSION_1 ? \
-				     IBLND_MAX_RDMA_FRAGS : IBLND_CFG_RDMA_FRAGS)
-
-/************************/
-/* derived constants... */
-/* Pools (shared by connections on each CPT) */
-/* These pools can grow at runtime, so don't need give a very large value */
-#define IBLND_TX_POOL			256
-#define IBLND_FMR_POOL			256
-#define IBLND_FMR_POOL_FLUSH		192
-
-/* TX messages (shared by all connections) */
-#define IBLND_TX_MSGS()	    (*kiblnd_tunables.kib_ntx)
-
-/* RX messages (per connection) */
-#define IBLND_RX_MSGS(v)	    (IBLND_MSG_QUEUE_SIZE(v) * 2 + IBLND_OOB_MSGS(v))
-#define IBLND_RX_MSG_BYTES(v)       (IBLND_RX_MSGS(v) * IBLND_MSG_SIZE)
-#define IBLND_RX_MSG_PAGES(v)      ((IBLND_RX_MSG_BYTES(v) + PAGE_SIZE - 1) / PAGE_SIZE)
-
-/* WRs and CQEs (per connection) */
-#define IBLND_RECV_WRS(v)	    IBLND_RX_MSGS(v)
-#define IBLND_SEND_WRS(v)	  ((IBLND_RDMA_FRAGS(v) + 1) * IBLND_CONCURRENT_SENDS(v))
-#define IBLND_CQ_ENTRIES(v)	 (IBLND_RECV_WRS(v) + IBLND_SEND_WRS(v))
-
-struct kib_hca_dev;
-
-/* o2iblnd can run over aliased interface */
-#ifdef IFALIASZ
-#define KIB_IFNAME_SIZE	      IFALIASZ
-#else
-#define KIB_IFNAME_SIZE	      256
-#endif
-
-typedef struct {
-	struct list_head   ibd_list;            /* chain on kib_devs */
-	struct list_head   ibd_fail_list;       /* chain on kib_failed_devs */
-	__u32              ibd_ifip;            /* IPoIB interface IP */
-
-	/* IPoIB interface name */
-	char               ibd_ifname[KIB_IFNAME_SIZE];
-	int                ibd_nnets;           /* # nets extant */
-
-	unsigned long      ibd_next_failover;
-	int                ibd_failed_failover; /* # failover failures */
-	unsigned int       ibd_failover;        /* failover in progress */
-	unsigned int       ibd_can_failover;    /* IPoIB interface is a bonding
-						 * master */
-	struct list_head   ibd_nets;
-	struct kib_hca_dev *ibd_hdev;
-} kib_dev_t;
-
-typedef struct kib_hca_dev {
-	struct rdma_cm_id  *ibh_cmid;           /* listener cmid */
-	struct ib_device   *ibh_ibdev;          /* IB device */
-	int                ibh_page_shift;      /* page shift of current HCA */
-	int                ibh_page_size;       /* page size of current HCA */
-	__u64              ibh_page_mask;       /* page mask of current HCA */
-	int                ibh_mr_shift;        /* bits shift of max MR size */
-	__u64              ibh_mr_size;         /* size of MR */
-	int                ibh_nmrs;            /* # of global MRs */
-	struct ib_mr       **ibh_mrs;           /* global MR */
-	struct ib_pd       *ibh_pd;             /* PD */
-	kib_dev_t          *ibh_dev;            /* owner */
-	atomic_t           ibh_ref;             /* refcount */
-} kib_hca_dev_t;
-
-/** # of seconds to keep pool alive */
-#define IBLND_POOL_DEADLINE     300
-/** # of seconds to retry if allocation failed */
-#define IBLND_POOL_RETRY	1
-
-typedef struct {
-	int                ibp_npages;          /* # pages */
-	struct page        *ibp_pages[0];       /* page array */
-} kib_pages_t;
-
-struct kib_pool;
-struct kib_poolset;
-
-typedef int  (*kib_ps_pool_create_t)(struct kib_poolset *ps,
-				     int inc, struct kib_pool **pp_po);
-typedef void (*kib_ps_pool_destroy_t)(struct kib_pool *po);
-typedef void (*kib_ps_node_init_t)(struct kib_pool *po, struct list_head *node);
-typedef void (*kib_ps_node_fini_t)(struct kib_pool *po, struct list_head *node);
-
-struct kib_net;
-
-#define IBLND_POOL_NAME_LEN     32
-
-typedef struct kib_poolset {
-	spinlock_t            ps_lock;            /* serialize */
-	struct kib_net        *ps_net;            /* network it belongs to */
-	char                  ps_name[IBLND_POOL_NAME_LEN]; /* pool set name */
-	struct list_head      ps_pool_list;       /* list of pools */
-	struct list_head      ps_failed_pool_list;/* failed pool list */
-	unsigned long         ps_next_retry;      /* time stamp for retry if
-						   * failed to allocate */
-	int                   ps_increasing;      /* is allocating new pool */
-	int                   ps_pool_size;       /* new pool size */
-	int                   ps_cpt;             /* CPT id */
-
-	kib_ps_pool_create_t  ps_pool_create;     /* create a new pool */
-	kib_ps_pool_destroy_t ps_pool_destroy;    /* destroy a pool */
-	kib_ps_node_init_t    ps_node_init;       /* initialize new allocated
-						   * node */
-	kib_ps_node_fini_t    ps_node_fini;       /* finalize node */
-} kib_poolset_t;
-
-typedef struct kib_pool {
-	struct list_head      po_list;         /* chain on pool list */
-	struct list_head      po_free_list;    /* pre-allocated node */
-	kib_poolset_t         *po_owner;       /* pool_set of this pool */
-	unsigned long         po_deadline;     /* deadline of this pool */
-	int                   po_allocated;    /* # of elements in use */
-	int                   po_failed;       /* pool is created on failed
-						* HCA */
-	int                   po_size;         /* # of pre-allocated elements */
-} kib_pool_t;
-
-typedef struct {
-	kib_poolset_t         tps_poolset;        /* pool-set */
-	__u64                 tps_next_tx_cookie; /* cookie of TX */
-} kib_tx_poolset_t;
-
-typedef struct {
-	kib_pool_t            tpo_pool;           /* pool */
-	struct kib_hca_dev    *tpo_hdev;          /* device for this pool */
-	struct kib_tx         *tpo_tx_descs;      /* all the tx descriptors */
-	kib_pages_t           *tpo_tx_pages;      /* premapped tx msg pages */
-} kib_tx_pool_t;
-
-typedef struct {
-	spinlock_t            fps_lock;            /* serialize */
-	struct kib_net        *fps_net;            /* IB network */
-	struct list_head      fps_pool_list;       /* FMR pool list */
-	struct list_head      fps_failed_pool_list;/* FMR pool list */
-	__u64                 fps_version;         /* validity stamp */
-	int                   fps_cpt;             /* CPT id */
-	int                   fps_pool_size;
-	int                   fps_flush_trigger;
-	int                   fps_increasing;      /* is allocating new pool */
-	unsigned long         fps_next_retry;      /* time stamp for retry if
-						    * failed to allocate */
-} kib_fmr_poolset_t;
-
-typedef struct {
-	struct list_head      fpo_list;            /* chain on pool list */
-	struct kib_hca_dev    *fpo_hdev;           /* device for this pool */
-	kib_fmr_poolset_t     *fpo_owner;          /* owner of this pool */
-	struct ib_fmr_pool    *fpo_fmr_pool;       /* IB FMR pool */
-	unsigned long         fpo_deadline;        /* deadline of this pool */
-	int                   fpo_failed;          /* fmr pool is failed */
-	int                   fpo_map_count;       /* # of mapped FMR */
-} kib_fmr_pool_t;
-
-typedef struct {
-	struct ib_pool_fmr    *fmr_pfmr;           /* IB pool fmr */
-	kib_fmr_pool_t        *fmr_pool;           /* pool of FMR */
-} kib_fmr_t;
-
-typedef struct kib_net {
-	struct list_head      ibn_list;       /* chain on kib_dev_t::ibd_nets */
-	__u64                 ibn_incarnation;/* my epoch */
-	int                   ibn_init;       /* initialisation state */
-	int                   ibn_shutdown;   /* shutting down? */
-
-	atomic_t              ibn_npeers;     /* # peers extant */
-	atomic_t              ibn_nconns;     /* # connections extant */
-
-	kib_tx_poolset_t      **ibn_tx_ps;    /* tx pool-set */
-	kib_fmr_poolset_t     **ibn_fmr_ps;   /* fmr pool-set */
-
-	kib_dev_t             *ibn_dev;       /* underlying IB device */
-} kib_net_t;
-
-#define KIB_THREAD_SHIFT		16
-#define KIB_THREAD_ID(cpt, tid)		((cpt) << KIB_THREAD_SHIFT | (tid))
-#define KIB_THREAD_CPT(id)		((id) >> KIB_THREAD_SHIFT)
-#define KIB_THREAD_TID(id)		((id) & ((1UL << KIB_THREAD_SHIFT) - 1))
-
-struct kib_sched_info {
-	spinlock_t         ibs_lock;     /* serialise */
-	wait_queue_head_t  ibs_waitq;    /* schedulers sleep here */
-	struct list_head   ibs_conns;    /* conns to check for rx completions */
-	int                ibs_nthreads; /* number of scheduler threads */
-	int                ibs_nthreads_max; /* max allowed scheduler threads */
-	int                ibs_cpt;      /* CPT id */
-};
-
-typedef struct {
-	int                   kib_init;           /* initialisation state */
-	int                   kib_shutdown;       /* shut down? */
-	struct list_head      kib_devs;           /* IB devices extant */
-	struct list_head      kib_failed_devs;    /* list head of failed
-						   * devices */
-	wait_queue_head_t     kib_failover_waitq; /* schedulers sleep here */
-	atomic_t              kib_nthreads;       /* # live threads */
-	rwlock_t              kib_global_lock;    /* stabilize net/dev/peer/conn
-						   * ops */
-	struct list_head      *kib_peers;         /* hash table of all my known
-						   * peers */
-	int                   kib_peer_hash_size; /* size of kib_peers */
-	void                  *kib_connd;         /* the connd task
-						   * (serialisation assertions)
-						   */
-	struct list_head      kib_connd_conns;    /* connections to
-						   * setup/teardown */
-	struct list_head      kib_connd_zombies;  /* connections with zero
-						   * refcount */
-	wait_queue_head_t     kib_connd_waitq;    /* connection daemon sleeps
-						   * here */
-	spinlock_t            kib_connd_lock;     /* serialise */
-	struct ib_qp_attr     kib_error_qpa;      /* QP->ERROR */
-	struct kib_sched_info **kib_scheds;       /* percpt data for schedulers
-						   */
-} kib_data_t;
-
-#define IBLND_INIT_NOTHING 0
-#define IBLND_INIT_DATA    1
-#define IBLND_INIT_ALL     2
-
-/************************************************************************
- * IB Wire message format.
- * These are sent in sender's byte order (i.e. receiver flips).
- */
-
-typedef struct kib_connparams {
-	__u16        ibcp_queue_depth;
-	__u16        ibcp_max_frags;
-	__u32        ibcp_max_msg_size;
-} WIRE_ATTR kib_connparams_t;
-
-typedef struct {
-	lnet_hdr_t   ibim_hdr;        /* portals header */
-	char         ibim_payload[0]; /* piggy-backed payload */
-} WIRE_ATTR kib_immediate_msg_t;
-
-typedef struct {
-	__u32        rf_nob;          /* # bytes this frag */
-	__u64        rf_addr;         /* CAVEAT EMPTOR: misaligned!! */
-} WIRE_ATTR kib_rdma_frag_t;
-
-typedef struct {
-	__u32           rd_key;       /* local/remote key */
-	__u32           rd_nfrags;    /* # fragments */
-	kib_rdma_frag_t rd_frags[0];  /* buffer frags */
-} WIRE_ATTR kib_rdma_desc_t;
-
-typedef struct {
-	lnet_hdr_t      ibprm_hdr;    /* portals header */
-	__u64           ibprm_cookie; /* opaque completion cookie */
-} WIRE_ATTR kib_putreq_msg_t;
-
-typedef struct {
-	__u64           ibpam_src_cookie; /* reflected completion cookie */
-	__u64           ibpam_dst_cookie; /* opaque completion cookie */
-	kib_rdma_desc_t ibpam_rd;         /* sender's sink buffer */
-} WIRE_ATTR kib_putack_msg_t;
-
-typedef struct {
-	lnet_hdr_t      ibgm_hdr;     /* portals header */
-	__u64           ibgm_cookie;  /* opaque completion cookie */
-	kib_rdma_desc_t ibgm_rd;      /* rdma descriptor */
-} WIRE_ATTR kib_get_msg_t;
-
-typedef struct {
-	__u64           ibcm_cookie;  /* opaque completion cookie */
-	__s32           ibcm_status;  /* < 0 failure: >= 0 length */
-} WIRE_ATTR kib_completion_msg_t;
-
-typedef struct {
-	/* First 2 fields fixed FOR ALL TIME */
-	__u32           ibm_magic;    /* I'm an ibnal message */
-	__u16           ibm_version;  /* this is my version number */
-
-	__u8            ibm_type;     /* msg type */
-	__u8            ibm_credits;  /* returned credits */
-	__u32           ibm_nob;      /* # bytes in whole message */
-	__u32           ibm_cksum;    /* checksum (0 == no checksum) */
-	__u64           ibm_srcnid;   /* sender's NID */
-	__u64           ibm_srcstamp; /* sender's incarnation */
-	__u64           ibm_dstnid;   /* destination's NID */
-	__u64           ibm_dststamp; /* destination's incarnation */
-
-	union {
-		kib_connparams_t     connparams;
-		kib_immediate_msg_t  immediate;
-		kib_putreq_msg_t     putreq;
-		kib_putack_msg_t     putack;
-		kib_get_msg_t        get;
-		kib_completion_msg_t completion;
-	} WIRE_ATTR ibm_u;
-} WIRE_ATTR kib_msg_t;
-
-#define IBLND_MSG_MAGIC     LNET_PROTO_IB_MAGIC /* unique magic */
-
-#define IBLND_MSG_VERSION_1 0x11
-#define IBLND_MSG_VERSION_2 0x12
-#define IBLND_MSG_VERSION   IBLND_MSG_VERSION_2
-
-#define IBLND_MSG_CONNREQ   0xc0	/* connection request */
-#define IBLND_MSG_CONNACK   0xc1	/* connection acknowledge */
-#define IBLND_MSG_NOOP      0xd0	/* nothing (just credits) */
-#define IBLND_MSG_IMMEDIATE 0xd1	/* immediate */
-#define IBLND_MSG_PUT_REQ   0xd2	/* putreq (src->sink) */
-#define IBLND_MSG_PUT_NAK   0xd3	/* completion (sink->src) */
-#define IBLND_MSG_PUT_ACK   0xd4	/* putack (sink->src) */
-#define IBLND_MSG_PUT_DONE  0xd5	/* completion (src->sink) */
-#define IBLND_MSG_GET_REQ   0xd6	/* getreq (sink->src) */
-#define IBLND_MSG_GET_DONE  0xd7	/* completion (src->sink: all OK) */
-
-typedef struct {
-	__u32            ibr_magic;       /* sender's magic */
-	__u16            ibr_version;     /* sender's version */
-	__u8             ibr_why;         /* reject reason */
-	__u8             ibr_padding;     /* padding */
-	__u64            ibr_incarnation; /* incarnation of peer */
-	kib_connparams_t ibr_cp;          /* connection parameters */
-} WIRE_ATTR kib_rej_t;
-
-/* connection rejection reasons */
-#define IBLND_REJECT_CONN_RACE      1 /* You lost connection race */
-#define IBLND_REJECT_NO_RESOURCES   2 /* Out of memory/conns etc */
-#define IBLND_REJECT_FATAL          3 /* Anything else */
-#define IBLND_REJECT_CONN_UNCOMPAT  4 /* incompatible version peer */
-#define IBLND_REJECT_CONN_STALE     5 /* stale peer */
-#define IBLND_REJECT_RDMA_FRAGS     6 /* Fatal: peer's rdma frags can't match
-				       * mine */
-#define IBLND_REJECT_MSG_QUEUE_SIZE 7 /* Fatal: peer's msg queue size can't
-				       * match mine */
-
-/***********************************************************************/
-
-typedef struct kib_rx                         /* receive message */
-{
-	struct list_head       rx_list;       /* queue for attention */
-	struct kib_conn        *rx_conn;      /* owning conn */
-	int                    rx_nob;        /* # bytes received (-1 while
-					       * posted) */
-	enum ib_wc_status      rx_status;     /* completion status */
-	kib_msg_t              *rx_msg;       /* message buffer (host vaddr) */
-	__u64                  rx_msgaddr;    /* message buffer (I/O addr) */
-	DECLARE_PCI_UNMAP_ADDR(rx_msgunmap);  /* for dma_unmap_single() */
-	struct ib_recv_wr      rx_wrq;        /* receive work item... */
-	struct ib_sge          rx_sge;        /* ...and its memory */
-} kib_rx_t;
-
-#define IBLND_POSTRX_DONT_POST    0   /* don't post */
-#define IBLND_POSTRX_NO_CREDIT    1   /* post: no credits */
-#define IBLND_POSTRX_PEER_CREDIT  2   /* post: give peer back 1 credit */
-#define IBLND_POSTRX_RSRVD_CREDIT 3   /* post: give myself back 1 reserved
-				       * credit */
-
-typedef struct kib_tx                         /* transmit message */
-{
-	struct list_head       tx_list;       /* queue on idle_txs ibc_tx_queue
-					       * etc. */
-	kib_tx_pool_t          *tx_pool;      /* pool I'm from */
-	struct kib_conn        *tx_conn;      /* owning conn */
-	short                  tx_sending;    /* # tx callbacks outstanding */
-	short                  tx_queued;     /* queued for sending */
-	short                  tx_waiting;    /* waiting for peer */
-	int                    tx_status;     /* LNET completion status */
-	unsigned long          tx_deadline;   /* completion deadline */
-	__u64                  tx_cookie;     /* completion cookie */
-	lnet_msg_t             *tx_lntmsg[2]; /* lnet msgs to finalize on
-					       * completion */
-	kib_msg_t              *tx_msg;       /* message buffer (host vaddr) */
-	__u64                  tx_msgaddr;    /* message buffer (I/O addr) */
-	DECLARE_PCI_UNMAP_ADDR(tx_msgunmap);  /* for dma_unmap_single() */
-	int                    tx_nwrq;       /* # send work items */
-	struct ib_send_wr      *tx_wrq;       /* send work items... */
-	struct ib_sge          *tx_sge;       /* ...and their memory */
-	kib_rdma_desc_t        *tx_rd;        /* rdma descriptor */
-	int                    tx_nfrags;     /* # entries in... */
-	struct scatterlist     *tx_frags;     /* dma_map_sg descriptor */
-	__u64                  *tx_pages;     /* rdma phys page addrs */
-	kib_fmr_t		fmr;	      /* FMR */
-	int                    tx_dmadir;     /* dma direction */
-} kib_tx_t;
-
-typedef struct kib_connvars {
-	kib_msg_t cv_msg; /* connection-in-progress variables */
-} kib_connvars_t;
-
-typedef struct kib_conn {
-	struct kib_sched_info *ibc_sched;           /* scheduler information */
-	struct kib_peer       *ibc_peer;            /* owning peer */
-	kib_hca_dev_t         *ibc_hdev;            /* HCA bound on */
-	struct list_head      ibc_list;             /* stash on peer's conn
-						     * list */
-	struct list_head      ibc_sched_list;       /* schedule for attention */
-	__u16                 ibc_version;          /* version of connection */
-	__u64                 ibc_incarnation;      /* which instance of the
-						     * peer */
-	atomic_t              ibc_refcount;         /* # users */
-	int                   ibc_state;            /* what's happening */
-	int                   ibc_nsends_posted;    /* # uncompleted sends */
-	int                   ibc_noops_posted;     /* # uncompleted NOOPs */
-	int                   ibc_credits;          /* # credits I have */
-	int                   ibc_outstanding_credits; /* # credits to return */
-	int                   ibc_reserved_credits; /* # ACK/DONE msg credits */
-	int                   ibc_comms_error;      /* set on comms error */
-	unsigned int          ibc_nrx:16;           /* receive buffers owned */
-	unsigned int          ibc_scheduled:1;      /* scheduled for attention
-						     */
-	unsigned int          ibc_ready:1;          /* CQ callback fired */
-	unsigned long         ibc_last_send;        /* time of last send */
-	struct list_head      ibc_connd_list;       /* link chain for
-						     * kiblnd_check_conns only
-						     */
-	struct list_head      ibc_early_rxs;        /* rxs completed before
-						     * ESTABLISHED */
-	struct list_head      ibc_tx_noops;         /* IBLND_MSG_NOOPs for
-						     * IBLND_MSG_VERSION_1 */
-	struct list_head      ibc_tx_queue;         /* sends that need a credit
-						     */
-	struct list_head      ibc_tx_queue_nocred;  /* sends that don't need a
-						     * credit */
-	struct list_head      ibc_tx_queue_rsrvd;   /* sends that need to
-						     * reserve an ACK/DONE msg
-						     */
-	struct list_head      ibc_active_txs;       /* active tx awaiting
-						     * completion */
-	spinlock_t            ibc_lock;             /* serialise */
-	kib_rx_t              *ibc_rxs;             /* the rx descs */
-	kib_pages_t           *ibc_rx_pages;        /* premapped rx msg pages */
-
-	struct rdma_cm_id     *ibc_cmid;            /* CM id */
-	struct ib_cq          *ibc_cq;              /* completion queue */
-
-	kib_connvars_t        *ibc_connvars;        /* in-progress connection
-						     * state */
-} kib_conn_t;
-
-#define IBLND_CONN_INIT           0	 /* being initialised */
-#define IBLND_CONN_ACTIVE_CONNECT 1	 /* active sending req */
-#define IBLND_CONN_PASSIVE_WAIT   2	 /* passive waiting for rtu */
-#define IBLND_CONN_ESTABLISHED    3	 /* connection established */
-#define IBLND_CONN_CLOSING        4	 /* being closed */
-#define IBLND_CONN_DISCONNECTED   5	 /* disconnected */
-
-typedef struct kib_peer {
-	struct list_head ibp_list;        /* stash on global peer list */
-	lnet_nid_t       ibp_nid;         /* who's on the other end(s) */
-	lnet_ni_t        *ibp_ni;         /* LNet interface */
-	atomic_t         ibp_refcount;    /* # users */
-	struct list_head ibp_conns;       /* all active connections */
-	struct list_head ibp_tx_queue;    /* msgs waiting for a conn */
-	__u16            ibp_version;     /* version of peer */
-	__u64            ibp_incarnation; /* incarnation of peer */
-	int              ibp_connecting;  /* current active connection attempts
-					   */
-	int              ibp_accepting;   /* current passive connection attempts
-					   */
-	int              ibp_error;       /* errno on closing this peer */
-	unsigned long    ibp_last_alive;  /* when (in jiffies) I was last alive
-					   */
-} kib_peer_t;
-
-extern kib_data_t kiblnd_data;
-
-void kiblnd_hdev_destroy(kib_hca_dev_t *hdev);
-
-static inline void
-kiblnd_hdev_addref_locked(kib_hca_dev_t *hdev)
-{
-	LASSERT(atomic_read(&hdev->ibh_ref) > 0);
-	atomic_inc(&hdev->ibh_ref);
-}
-
-static inline void
-kiblnd_hdev_decref(kib_hca_dev_t *hdev)
-{
-	LASSERT(atomic_read(&hdev->ibh_ref) > 0);
-	if (atomic_dec_and_test(&hdev->ibh_ref))
-		kiblnd_hdev_destroy(hdev);
-}
-
-static inline int
-kiblnd_dev_can_failover(kib_dev_t *dev)
-{
-	if (!list_empty(&dev->ibd_fail_list)) /* already scheduled */
-		return 0;
-
-	if (*kiblnd_tunables.kib_dev_failover == 0) /* disabled */
-		return 0;
-
-	if (*kiblnd_tunables.kib_dev_failover > 1) /* force failover */
-		return 1;
-
-	return dev->ibd_can_failover;
-}
-
-#define kiblnd_conn_addref(conn)				\
-do {							    \
-	CDEBUG(D_NET, "conn[%p] (%d)++\n",		      \
-	       (conn), atomic_read(&(conn)->ibc_refcount)); \
-	atomic_inc(&(conn)->ibc_refcount);		  \
-} while (0)
-
-#define kiblnd_conn_decref(conn)					\
-do {									\
-	unsigned long flags;						\
-									\
-	CDEBUG(D_NET, "conn[%p] (%d)--\n",				\
-	       (conn), atomic_read(&(conn)->ibc_refcount));		\
-	LASSERT_ATOMIC_POS(&(conn)->ibc_refcount);			\
-	if (atomic_dec_and_test(&(conn)->ibc_refcount)) {		\
-		spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags);	\
-		list_add_tail(&(conn)->ibc_list,			\
-				  &kiblnd_data.kib_connd_zombies);	\
-		wake_up(&kiblnd_data.kib_connd_waitq);		\
-		spin_unlock_irqrestore(&kiblnd_data.kib_connd_lock, flags);\
-	}								\
-} while (0)
-
-#define kiblnd_peer_addref(peer)				\
-do {							    \
-	CDEBUG(D_NET, "peer[%p] -> %s (%d)++\n",		\
-	       (peer), libcfs_nid2str((peer)->ibp_nid),	 \
-	       atomic_read(&(peer)->ibp_refcount));	\
-	atomic_inc(&(peer)->ibp_refcount);		  \
-} while (0)
-
-#define kiblnd_peer_decref(peer)				\
-do {							    \
-	CDEBUG(D_NET, "peer[%p] -> %s (%d)--\n",		\
-	       (peer), libcfs_nid2str((peer)->ibp_nid),	 \
-	       atomic_read(&(peer)->ibp_refcount));	\
-	LASSERT_ATOMIC_POS(&(peer)->ibp_refcount);	      \
-	if (atomic_dec_and_test(&(peer)->ibp_refcount))     \
-		kiblnd_destroy_peer(peer);		      \
-} while (0)
-
-static inline struct list_head *
-kiblnd_nid2peerlist(lnet_nid_t nid)
-{
-	unsigned int hash =
-		((unsigned int)nid) % kiblnd_data.kib_peer_hash_size;
-
-	return &kiblnd_data.kib_peers[hash];
-}
-
-static inline int
-kiblnd_peer_active(kib_peer_t *peer)
-{
-	/* Am I in the peer hash table? */
-	return !list_empty(&peer->ibp_list);
-}
-
-static inline kib_conn_t *
-kiblnd_get_conn_locked(kib_peer_t *peer)
-{
-	LASSERT(!list_empty(&peer->ibp_conns));
-
-	/* just return the first connection */
-	return list_entry(peer->ibp_conns.next, kib_conn_t, ibc_list);
-}
-
-static inline int
-kiblnd_send_keepalive(kib_conn_t *conn)
-{
-	return (*kiblnd_tunables.kib_keepalive > 0) &&
-		cfs_time_after(jiffies, conn->ibc_last_send +
-			       *kiblnd_tunables.kib_keepalive*HZ);
-}
-
-static inline int
-kiblnd_need_noop(kib_conn_t *conn)
-{
-	LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
-
-	if (conn->ibc_outstanding_credits <
-	    IBLND_CREDITS_HIGHWATER(conn->ibc_version) &&
-	    !kiblnd_send_keepalive(conn))
-		return 0; /* No need to send NOOP */
-
-	if (IBLND_OOB_CAPABLE(conn->ibc_version)) {
-		if (!list_empty(&conn->ibc_tx_queue_nocred))
-			return 0; /* NOOP can be piggybacked */
-
-		/* No tx to piggyback NOOP onto or no credit to send a tx */
-		return (list_empty(&conn->ibc_tx_queue) ||
-			conn->ibc_credits == 0);
-	}
-
-	if (!list_empty(&conn->ibc_tx_noops) || /* NOOP already queued */
-	    !list_empty(&conn->ibc_tx_queue_nocred) || /* piggyback NOOP */
-	    conn->ibc_credits == 0)		    /* no credit */
-		return 0;
-
-	if (conn->ibc_credits == 1 &&      /* last credit reserved for */
-	    conn->ibc_outstanding_credits == 0) /* giving back credits */
-		return 0;
-
-	/* No tx to piggyback NOOP onto or no credit to send a tx */
-	return (list_empty(&conn->ibc_tx_queue) || conn->ibc_credits == 1);
-}
-
-static inline void
-kiblnd_abort_receives(kib_conn_t *conn)
-{
-	ib_modify_qp(conn->ibc_cmid->qp,
-		     &kiblnd_data.kib_error_qpa, IB_QP_STATE);
-}
-
-static inline const char *
-kiblnd_queue2str(kib_conn_t *conn, struct list_head *q)
-{
-	if (q == &conn->ibc_tx_queue)
-		return "tx_queue";
-
-	if (q == &conn->ibc_tx_queue_rsrvd)
-		return "tx_queue_rsrvd";
-
-	if (q == &conn->ibc_tx_queue_nocred)
-		return "tx_queue_nocred";
-
-	if (q == &conn->ibc_active_txs)
-		return "active_txs";
-
-	LBUG();
-	return NULL;
-}
-
-/* CAVEAT EMPTOR: We rely on descriptor alignment to allow us to use the
- * lowest bits of the work request id to stash the work item type. */
-
-#define IBLND_WID_TX    0
-#define IBLND_WID_RDMA  1
-#define IBLND_WID_RX    2
-#define IBLND_WID_MASK  3UL
-
-static inline __u64
-kiblnd_ptr2wreqid(void *ptr, int type)
-{
-	unsigned long lptr = (unsigned long)ptr;
-
-	LASSERT((lptr & IBLND_WID_MASK) == 0);
-	LASSERT((type & ~IBLND_WID_MASK) == 0);
-	return (__u64)(lptr | type);
-}
-
-static inline void *
-kiblnd_wreqid2ptr(__u64 wreqid)
-{
-	return (void *)(((unsigned long)wreqid) & ~IBLND_WID_MASK);
-}
-
-static inline int
-kiblnd_wreqid2type(__u64 wreqid)
-{
-	return wreqid & IBLND_WID_MASK;
-}
-
-static inline void
-kiblnd_set_conn_state(kib_conn_t *conn, int state)
-{
-	conn->ibc_state = state;
-	mb();
-}
-
-static inline void
-kiblnd_init_msg(kib_msg_t *msg, int type, int body_nob)
-{
-	msg->ibm_type = type;
-	msg->ibm_nob  = offsetof(kib_msg_t, ibm_u) + body_nob;
-}
-
-static inline int
-kiblnd_rd_size(kib_rdma_desc_t *rd)
-{
-	int   i;
-	int   size;
-
-	for (i = size = 0; i < rd->rd_nfrags; i++)
-		size += rd->rd_frags[i].rf_nob;
-
-	return size;
-}
-
-static inline __u64
-kiblnd_rd_frag_addr(kib_rdma_desc_t *rd, int index)
-{
-	return rd->rd_frags[index].rf_addr;
-}
-
-static inline __u32
-kiblnd_rd_frag_size(kib_rdma_desc_t *rd, int index)
-{
-	return rd->rd_frags[index].rf_nob;
-}
-
-static inline __u32
-kiblnd_rd_frag_key(kib_rdma_desc_t *rd, int index)
-{
-	return rd->rd_key;
-}
-
-static inline int
-kiblnd_rd_consume_frag(kib_rdma_desc_t *rd, int index, __u32 nob)
-{
-	if (nob < rd->rd_frags[index].rf_nob) {
-		rd->rd_frags[index].rf_addr += nob;
-		rd->rd_frags[index].rf_nob  -= nob;
-	} else {
-		index++;
-	}
-
-	return index;
-}
-
-static inline int
-kiblnd_rd_msg_size(kib_rdma_desc_t *rd, int msgtype, int n)
-{
-	LASSERT(msgtype == IBLND_MSG_GET_REQ ||
-		msgtype == IBLND_MSG_PUT_ACK);
-
-	return msgtype == IBLND_MSG_GET_REQ ?
-	       offsetof(kib_get_msg_t, ibgm_rd.rd_frags[n]) :
-	       offsetof(kib_putack_msg_t, ibpam_rd.rd_frags[n]);
-}
-
-
-static inline __u64
-kiblnd_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
-{
-	return ib_dma_mapping_error(dev, dma_addr);
-}
-
-static inline __u64 kiblnd_dma_map_single(struct ib_device *dev,
-					  void *msg, size_t size,
-					  enum dma_data_direction direction)
-{
-	return ib_dma_map_single(dev, msg, size, direction);
-}
-
-static inline void kiblnd_dma_unmap_single(struct ib_device *dev,
-					   __u64 addr, size_t size,
-					  enum dma_data_direction direction)
-{
-	ib_dma_unmap_single(dev, addr, size, direction);
-}
-
-#define KIBLND_UNMAP_ADDR_SET(p, m, a)  do {} while (0)
-#define KIBLND_UNMAP_ADDR(p, m, a)      (a)
-
-static inline int kiblnd_dma_map_sg(struct ib_device *dev,
-				    struct scatterlist *sg, int nents,
-				    enum dma_data_direction direction)
-{
-	return ib_dma_map_sg(dev, sg, nents, direction);
-}
-
-static inline void kiblnd_dma_unmap_sg(struct ib_device *dev,
-				       struct scatterlist *sg, int nents,
-				       enum dma_data_direction direction)
-{
-	ib_dma_unmap_sg(dev, sg, nents, direction);
-}
-
-static inline __u64 kiblnd_sg_dma_address(struct ib_device *dev,
-					  struct scatterlist *sg)
-{
-	return ib_sg_dma_address(dev, sg);
-}
-
-static inline unsigned int kiblnd_sg_dma_len(struct ib_device *dev,
-					     struct scatterlist *sg)
-{
-	return ib_sg_dma_len(dev, sg);
-}
-
-/* XXX We use KIBLND_CONN_PARAM(e) as writable buffer, it's not strictly
- * right because OFED1.2 defines it as const, to use it we have to add
- * (void *) cast to overcome "const" */
-
-#define KIBLND_CONN_PARAM(e)     ((e)->param.conn.private_data)
-#define KIBLND_CONN_PARAM_LEN(e) ((e)->param.conn.private_data_len)
-
-
-struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev,
-				    kib_rdma_desc_t *rd);
-struct ib_mr *kiblnd_find_dma_mr(kib_hca_dev_t *hdev,
-				 __u64 addr, __u64 size);
-void kiblnd_map_rx_descs(kib_conn_t *conn);
-void kiblnd_unmap_rx_descs(kib_conn_t *conn);
-int kiblnd_map_tx(lnet_ni_t *ni, kib_tx_t *tx,
-		  kib_rdma_desc_t *rd, int nfrags);
-void kiblnd_unmap_tx(lnet_ni_t *ni, kib_tx_t *tx);
-void kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node);
-struct list_head *kiblnd_pool_alloc_node(kib_poolset_t *ps);
-
-int  kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages,
-			 int npages, __u64 iov, kib_fmr_t *fmr);
-void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status);
-
-int  kiblnd_startup(lnet_ni_t *ni);
-void kiblnd_shutdown(lnet_ni_t *ni);
-int  kiblnd_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg);
-void kiblnd_query(struct lnet_ni *ni, lnet_nid_t nid, unsigned long *when);
-
-int  kiblnd_tunables_init(void);
-void kiblnd_tunables_fini(void);
-
-int  kiblnd_connd(void *arg);
-int  kiblnd_scheduler(void *arg);
-int  kiblnd_thread_start(int (*fn)(void *arg), void *arg, char *name);
-int  kiblnd_failover_thread(void *arg);
-
-int  kiblnd_alloc_pages(kib_pages_t **pp, int cpt, int npages);
-void kiblnd_free_pages(kib_pages_t *p);
-
-int  kiblnd_cm_callback(struct rdma_cm_id *cmid,
-			struct rdma_cm_event *event);
-int  kiblnd_translate_mtu(int value);
-
-int  kiblnd_dev_failover(kib_dev_t *dev);
-int  kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid);
-void kiblnd_destroy_peer(kib_peer_t *peer);
-void kiblnd_destroy_dev(kib_dev_t *dev);
-void kiblnd_unlink_peer_locked(kib_peer_t *peer);
-void kiblnd_peer_alive(kib_peer_t *peer);
-kib_peer_t *kiblnd_find_peer_locked(lnet_nid_t nid);
-void kiblnd_peer_connect_failed(kib_peer_t *peer, int active, int error);
-int  kiblnd_close_stale_conns_locked(kib_peer_t *peer,
-				      int version, __u64 incarnation);
-int  kiblnd_close_peer_conns_locked(kib_peer_t *peer, int why);
-
-void kiblnd_connreq_done(kib_conn_t *conn, int status);
-kib_conn_t *kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
-				int state, int version);
-void kiblnd_destroy_conn(kib_conn_t *conn);
-void kiblnd_close_conn(kib_conn_t *conn, int error);
-void kiblnd_close_conn_locked(kib_conn_t *conn, int error);
-
-int  kiblnd_init_rdma(kib_conn_t *conn, kib_tx_t *tx, int type,
-		       int nob, kib_rdma_desc_t *dstrd, __u64 dstcookie);
-
-void kiblnd_launch_tx(lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid);
-void kiblnd_queue_tx_locked(kib_tx_t *tx, kib_conn_t *conn);
-void kiblnd_queue_tx(kib_tx_t *tx, kib_conn_t *conn);
-void kiblnd_init_tx_msg(lnet_ni_t *ni, kib_tx_t *tx, int type, int body_nob);
-void kiblnd_txlist_done(lnet_ni_t *ni, struct list_head *txlist,
-			 int status);
-void kiblnd_check_sends (kib_conn_t *conn);
-
-void kiblnd_qp_event(struct ib_event *event, void *arg);
-void kiblnd_cq_event(struct ib_event *event, void *arg);
-void kiblnd_cq_completion(struct ib_cq *cq, void *arg);
-
-void kiblnd_pack_msg(lnet_ni_t *ni, kib_msg_t *msg, int version,
-		      int credits, lnet_nid_t dstnid, __u64 dststamp);
-int  kiblnd_unpack_msg(kib_msg_t *msg, int nob);
-int  kiblnd_post_rx(kib_rx_t *rx, int credit);
-
-int  kiblnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg);
-int  kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
-		 unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov,
-		 unsigned int offset, unsigned int mlen, unsigned int rlen);
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
deleted file mode 100644
index a23a6d956a4d..000000000000
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ /dev/null
@@ -1,3473 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/klnds/o2iblnd/o2iblnd_cb.c
- *
- * Author: Eric Barton <eric@bartonsoftware.com>
- */
-
-#include "o2iblnd.h"
-
-static void
-kiblnd_tx_done(lnet_ni_t *ni, kib_tx_t *tx)
-{
-	lnet_msg_t *lntmsg[2];
-	kib_net_t *net = ni->ni_data;
-	int rc;
-	int i;
-
-	LASSERT(net != NULL);
-	LASSERT(!in_interrupt());
-	LASSERT(!tx->tx_queued);	       /* mustn't be queued for sending */
-	LASSERT(tx->tx_sending == 0);	  /* mustn't be awaiting sent callback */
-	LASSERT(!tx->tx_waiting);	      /* mustn't be awaiting peer response */
-	LASSERT(tx->tx_pool != NULL);
-
-	kiblnd_unmap_tx(ni, tx);
-
-	/* tx may have up to 2 lnet msgs to finalise */
-	lntmsg[0] = tx->tx_lntmsg[0]; tx->tx_lntmsg[0] = NULL;
-	lntmsg[1] = tx->tx_lntmsg[1]; tx->tx_lntmsg[1] = NULL;
-	rc = tx->tx_status;
-
-	if (tx->tx_conn != NULL) {
-		LASSERT(ni == tx->tx_conn->ibc_peer->ibp_ni);
-
-		kiblnd_conn_decref(tx->tx_conn);
-		tx->tx_conn = NULL;
-	}
-
-	tx->tx_nwrq = 0;
-	tx->tx_status = 0;
-
-	kiblnd_pool_free_node(&tx->tx_pool->tpo_pool, &tx->tx_list);
-
-	/* delay finalize until my descs have been freed */
-	for (i = 0; i < 2; i++) {
-		if (lntmsg[i] == NULL)
-			continue;
-
-		lnet_finalize(ni, lntmsg[i], rc);
-	}
-}
-
-void
-kiblnd_txlist_done(lnet_ni_t *ni, struct list_head *txlist, int status)
-{
-	kib_tx_t *tx;
-
-	while (!list_empty(txlist)) {
-		tx = list_entry(txlist->next, kib_tx_t, tx_list);
-
-		list_del(&tx->tx_list);
-		/* complete now */
-		tx->tx_waiting = 0;
-		tx->tx_status = status;
-		kiblnd_tx_done(ni, tx);
-	}
-}
-
-static kib_tx_t *
-kiblnd_get_idle_tx(lnet_ni_t *ni, lnet_nid_t target)
-{
-	kib_net_t *net = (kib_net_t *)ni->ni_data;
-	struct list_head *node;
-	kib_tx_t *tx;
-	kib_tx_poolset_t *tps;
-
-	tps = net->ibn_tx_ps[lnet_cpt_of_nid(target)];
-	node = kiblnd_pool_alloc_node(&tps->tps_poolset);
-	if (node == NULL)
-		return NULL;
-	tx = container_of(node, kib_tx_t, tx_list);
-
-	LASSERT(tx->tx_nwrq == 0);
-	LASSERT(!tx->tx_queued);
-	LASSERT(tx->tx_sending == 0);
-	LASSERT(!tx->tx_waiting);
-	LASSERT(tx->tx_status == 0);
-	LASSERT(tx->tx_conn == NULL);
-	LASSERT(tx->tx_lntmsg[0] == NULL);
-	LASSERT(tx->tx_lntmsg[1] == NULL);
-	LASSERT(tx->tx_nfrags == 0);
-
-	return tx;
-}
-
-static void
-kiblnd_drop_rx(kib_rx_t *rx)
-{
-	kib_conn_t *conn = rx->rx_conn;
-	struct kib_sched_info *sched = conn->ibc_sched;
-	unsigned long flags;
-
-	spin_lock_irqsave(&sched->ibs_lock, flags);
-	LASSERT(conn->ibc_nrx > 0);
-	conn->ibc_nrx--;
-	spin_unlock_irqrestore(&sched->ibs_lock, flags);
-
-	kiblnd_conn_decref(conn);
-}
-
-int
-kiblnd_post_rx(kib_rx_t *rx, int credit)
-{
-	kib_conn_t *conn = rx->rx_conn;
-	kib_net_t *net = conn->ibc_peer->ibp_ni->ni_data;
-	struct ib_recv_wr *bad_wrq = NULL;
-	struct ib_mr *mr;
-	int rc;
-
-	LASSERT(net != NULL);
-	LASSERT(!in_interrupt());
-	LASSERT(credit == IBLND_POSTRX_NO_CREDIT ||
-		credit == IBLND_POSTRX_PEER_CREDIT ||
-		credit == IBLND_POSTRX_RSRVD_CREDIT);
-
-	mr = kiblnd_find_dma_mr(conn->ibc_hdev, rx->rx_msgaddr, IBLND_MSG_SIZE);
-	LASSERT(mr != NULL);
-
-	rx->rx_sge.lkey   = mr->lkey;
-	rx->rx_sge.addr   = rx->rx_msgaddr;
-	rx->rx_sge.length = IBLND_MSG_SIZE;
-
-	rx->rx_wrq.next    = NULL;
-	rx->rx_wrq.sg_list = &rx->rx_sge;
-	rx->rx_wrq.num_sge = 1;
-	rx->rx_wrq.wr_id   = kiblnd_ptr2wreqid(rx, IBLND_WID_RX);
-
-	LASSERT(conn->ibc_state >= IBLND_CONN_INIT);
-	LASSERT(rx->rx_nob >= 0);	      /* not posted */
-
-	if (conn->ibc_state > IBLND_CONN_ESTABLISHED) {
-		kiblnd_drop_rx(rx);	     /* No more posts for this rx */
-		return 0;
-	}
-
-	rx->rx_nob = -1;			/* flag posted */
-
-	rc = ib_post_recv(conn->ibc_cmid->qp, &rx->rx_wrq, &bad_wrq);
-	if (rc != 0) {
-		CERROR("Can't post rx for %s: %d, bad_wrq: %p\n",
-		       libcfs_nid2str(conn->ibc_peer->ibp_nid), rc, bad_wrq);
-		rx->rx_nob = 0;
-	}
-
-	if (conn->ibc_state < IBLND_CONN_ESTABLISHED) /* Initial post */
-		return rc;
-
-	if (rc != 0) {
-		kiblnd_close_conn(conn, rc);
-		kiblnd_drop_rx(rx);	     /* No more posts for this rx */
-		return rc;
-	}
-
-	if (credit == IBLND_POSTRX_NO_CREDIT)
-		return 0;
-
-	spin_lock(&conn->ibc_lock);
-	if (credit == IBLND_POSTRX_PEER_CREDIT)
-		conn->ibc_outstanding_credits++;
-	else
-		conn->ibc_reserved_credits++;
-	spin_unlock(&conn->ibc_lock);
-
-	kiblnd_check_sends(conn);
-	return 0;
-}
-
-static kib_tx_t *
-kiblnd_find_waiting_tx_locked(kib_conn_t *conn, int txtype, __u64 cookie)
-{
-	struct list_head *tmp;
-
-	list_for_each(tmp, &conn->ibc_active_txs) {
-		kib_tx_t *tx = list_entry(tmp, kib_tx_t, tx_list);
-
-		LASSERT(!tx->tx_queued);
-		LASSERT(tx->tx_sending != 0 || tx->tx_waiting);
-
-		if (tx->tx_cookie != cookie)
-			continue;
-
-		if (tx->tx_waiting &&
-		    tx->tx_msg->ibm_type == txtype)
-			return tx;
-
-		CWARN("Bad completion: %swaiting, type %x (wanted %x)\n",
-		      tx->tx_waiting ? "" : "NOT ",
-		      tx->tx_msg->ibm_type, txtype);
-	}
-	return NULL;
-}
-
-static void
-kiblnd_handle_completion(kib_conn_t *conn, int txtype, int status, __u64 cookie)
-{
-	kib_tx_t *tx;
-	lnet_ni_t *ni = conn->ibc_peer->ibp_ni;
-	int idle;
-
-	spin_lock(&conn->ibc_lock);
-
-	tx = kiblnd_find_waiting_tx_locked(conn, txtype, cookie);
-	if (tx == NULL) {
-		spin_unlock(&conn->ibc_lock);
-
-		CWARN("Unmatched completion type %x cookie %#llx from %s\n",
-		      txtype, cookie, libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		kiblnd_close_conn(conn, -EPROTO);
-		return;
-	}
-
-	if (tx->tx_status == 0) {	       /* success so far */
-		if (status < 0) {	       /* failed? */
-			tx->tx_status = status;
-		} else if (txtype == IBLND_MSG_GET_REQ) {
-			lnet_set_reply_msg_len(ni, tx->tx_lntmsg[1], status);
-		}
-	}
-
-	tx->tx_waiting = 0;
-
-	idle = !tx->tx_queued && (tx->tx_sending == 0);
-	if (idle)
-		list_del(&tx->tx_list);
-
-	spin_unlock(&conn->ibc_lock);
-
-	if (idle)
-		kiblnd_tx_done(ni, tx);
-}
-
-static void
-kiblnd_send_completion(kib_conn_t *conn, int type, int status, __u64 cookie)
-{
-	lnet_ni_t *ni = conn->ibc_peer->ibp_ni;
-	kib_tx_t *tx = kiblnd_get_idle_tx(ni, conn->ibc_peer->ibp_nid);
-
-	if (tx == NULL) {
-		CERROR("Can't get tx for completion %x for %s\n",
-		       type, libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		return;
-	}
-
-	tx->tx_msg->ibm_u.completion.ibcm_status = status;
-	tx->tx_msg->ibm_u.completion.ibcm_cookie = cookie;
-	kiblnd_init_tx_msg(ni, tx, type, sizeof(kib_completion_msg_t));
-
-	kiblnd_queue_tx(tx, conn);
-}
-
-static void
-kiblnd_handle_rx(kib_rx_t *rx)
-{
-	kib_msg_t *msg = rx->rx_msg;
-	kib_conn_t *conn = rx->rx_conn;
-	lnet_ni_t *ni = conn->ibc_peer->ibp_ni;
-	int credits = msg->ibm_credits;
-	kib_tx_t *tx;
-	int rc = 0;
-	int rc2;
-	int post_credit;
-
-	LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
-
-	CDEBUG(D_NET, "Received %x[%d] from %s\n",
-	       msg->ibm_type, credits,
-	       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-
-	if (credits != 0) {
-		/* Have I received credits that will let me send? */
-		spin_lock(&conn->ibc_lock);
-
-		if (conn->ibc_credits + credits >
-		    IBLND_MSG_QUEUE_SIZE(conn->ibc_version)) {
-			rc2 = conn->ibc_credits;
-			spin_unlock(&conn->ibc_lock);
-
-			CERROR("Bad credits from %s: %d + %d > %d\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid),
-			       rc2, credits,
-			       IBLND_MSG_QUEUE_SIZE(conn->ibc_version));
-
-			kiblnd_close_conn(conn, -EPROTO);
-			kiblnd_post_rx(rx, IBLND_POSTRX_NO_CREDIT);
-			return;
-		}
-
-		conn->ibc_credits += credits;
-
-		/* This ensures the credit taken by NOOP can be returned */
-		if (msg->ibm_type == IBLND_MSG_NOOP &&
-		    !IBLND_OOB_CAPABLE(conn->ibc_version)) /* v1 only */
-			conn->ibc_outstanding_credits++;
-
-		spin_unlock(&conn->ibc_lock);
-		kiblnd_check_sends(conn);
-	}
-
-	switch (msg->ibm_type) {
-	default:
-		CERROR("Bad IBLND message type %x from %s\n",
-		       msg->ibm_type, libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		post_credit = IBLND_POSTRX_NO_CREDIT;
-		rc = -EPROTO;
-		break;
-
-	case IBLND_MSG_NOOP:
-		if (IBLND_OOB_CAPABLE(conn->ibc_version)) {
-			post_credit = IBLND_POSTRX_NO_CREDIT;
-			break;
-		}
-
-		if (credits != 0) /* credit already posted */
-			post_credit = IBLND_POSTRX_NO_CREDIT;
-		else	      /* a keepalive NOOP */
-			post_credit = IBLND_POSTRX_PEER_CREDIT;
-		break;
-
-	case IBLND_MSG_IMMEDIATE:
-		post_credit = IBLND_POSTRX_DONT_POST;
-		rc = lnet_parse(ni, &msg->ibm_u.immediate.ibim_hdr,
-				msg->ibm_srcnid, rx, 0);
-		if (rc < 0)		     /* repost on error */
-			post_credit = IBLND_POSTRX_PEER_CREDIT;
-		break;
-
-	case IBLND_MSG_PUT_REQ:
-		post_credit = IBLND_POSTRX_DONT_POST;
-		rc = lnet_parse(ni, &msg->ibm_u.putreq.ibprm_hdr,
-				msg->ibm_srcnid, rx, 1);
-		if (rc < 0)		     /* repost on error */
-			post_credit = IBLND_POSTRX_PEER_CREDIT;
-		break;
-
-	case IBLND_MSG_PUT_NAK:
-		CWARN("PUT_NACK from %s\n",
-		      libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		post_credit = IBLND_POSTRX_RSRVD_CREDIT;
-		kiblnd_handle_completion(conn, IBLND_MSG_PUT_REQ,
-					 msg->ibm_u.completion.ibcm_status,
-					 msg->ibm_u.completion.ibcm_cookie);
-		break;
-
-	case IBLND_MSG_PUT_ACK:
-		post_credit = IBLND_POSTRX_RSRVD_CREDIT;
-
-		spin_lock(&conn->ibc_lock);
-		tx = kiblnd_find_waiting_tx_locked(conn, IBLND_MSG_PUT_REQ,
-					msg->ibm_u.putack.ibpam_src_cookie);
-		if (tx != NULL)
-			list_del(&tx->tx_list);
-		spin_unlock(&conn->ibc_lock);
-
-		if (tx == NULL) {
-			CERROR("Unmatched PUT_ACK from %s\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-			rc = -EPROTO;
-			break;
-		}
-
-		LASSERT(tx->tx_waiting);
-		/* CAVEAT EMPTOR: I could be racing with tx_complete, but...
-		 * (a) I can overwrite tx_msg since my peer has received it!
-		 * (b) tx_waiting set tells tx_complete() it's not done. */
-
-		tx->tx_nwrq = 0;		/* overwrite PUT_REQ */
-
-		rc2 = kiblnd_init_rdma(conn, tx, IBLND_MSG_PUT_DONE,
-				       kiblnd_rd_size(&msg->ibm_u.putack.ibpam_rd),
-				       &msg->ibm_u.putack.ibpam_rd,
-				       msg->ibm_u.putack.ibpam_dst_cookie);
-		if (rc2 < 0)
-			CERROR("Can't setup rdma for PUT to %s: %d\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid), rc2);
-
-		spin_lock(&conn->ibc_lock);
-		tx->tx_waiting = 0;	/* clear waiting and queue atomically */
-		kiblnd_queue_tx_locked(tx, conn);
-		spin_unlock(&conn->ibc_lock);
-		break;
-
-	case IBLND_MSG_PUT_DONE:
-		post_credit = IBLND_POSTRX_PEER_CREDIT;
-		kiblnd_handle_completion(conn, IBLND_MSG_PUT_ACK,
-					 msg->ibm_u.completion.ibcm_status,
-					 msg->ibm_u.completion.ibcm_cookie);
-		break;
-
-	case IBLND_MSG_GET_REQ:
-		post_credit = IBLND_POSTRX_DONT_POST;
-		rc = lnet_parse(ni, &msg->ibm_u.get.ibgm_hdr,
-				msg->ibm_srcnid, rx, 1);
-		if (rc < 0)		     /* repost on error */
-			post_credit = IBLND_POSTRX_PEER_CREDIT;
-		break;
-
-	case IBLND_MSG_GET_DONE:
-		post_credit = IBLND_POSTRX_RSRVD_CREDIT;
-		kiblnd_handle_completion(conn, IBLND_MSG_GET_REQ,
-					 msg->ibm_u.completion.ibcm_status,
-					 msg->ibm_u.completion.ibcm_cookie);
-		break;
-	}
-
-	if (rc < 0)			     /* protocol error */
-		kiblnd_close_conn(conn, rc);
-
-	if (post_credit != IBLND_POSTRX_DONT_POST)
-		kiblnd_post_rx(rx, post_credit);
-}
-
-static void
-kiblnd_rx_complete(kib_rx_t *rx, int status, int nob)
-{
-	kib_msg_t *msg = rx->rx_msg;
-	kib_conn_t *conn = rx->rx_conn;
-	lnet_ni_t *ni = conn->ibc_peer->ibp_ni;
-	kib_net_t *net = ni->ni_data;
-	int rc;
-	int err = -EIO;
-
-	LASSERT(net != NULL);
-	LASSERT(rx->rx_nob < 0);	       /* was posted */
-	rx->rx_nob = 0;			 /* isn't now */
-
-	if (conn->ibc_state > IBLND_CONN_ESTABLISHED)
-		goto ignore;
-
-	if (status != IB_WC_SUCCESS) {
-		CNETERR("Rx from %s failed: %d\n",
-			libcfs_nid2str(conn->ibc_peer->ibp_nid), status);
-		goto failed;
-	}
-
-	LASSERT(nob >= 0);
-	rx->rx_nob = nob;
-
-	rc = kiblnd_unpack_msg(msg, rx->rx_nob);
-	if (rc != 0) {
-		CERROR("Error %d unpacking rx from %s\n",
-			rc, libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		goto failed;
-	}
-
-	if (msg->ibm_srcnid != conn->ibc_peer->ibp_nid ||
-	    msg->ibm_dstnid != ni->ni_nid ||
-	    msg->ibm_srcstamp != conn->ibc_incarnation ||
-	    msg->ibm_dststamp != net->ibn_incarnation) {
-		CERROR("Stale rx from %s\n",
-			libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		err = -ESTALE;
-		goto failed;
-	}
-
-	/* set time last known alive */
-	kiblnd_peer_alive(conn->ibc_peer);
-
-	/* racing with connection establishment/teardown! */
-
-	if (conn->ibc_state < IBLND_CONN_ESTABLISHED) {
-		rwlock_t *g_lock = &kiblnd_data.kib_global_lock;
-		unsigned long flags;
-
-		write_lock_irqsave(g_lock, flags);
-		/* must check holding global lock to eliminate race */
-		if (conn->ibc_state < IBLND_CONN_ESTABLISHED) {
-			list_add_tail(&rx->rx_list, &conn->ibc_early_rxs);
-			write_unlock_irqrestore(g_lock, flags);
-			return;
-		}
-		write_unlock_irqrestore(g_lock, flags);
-	}
-	kiblnd_handle_rx(rx);
-	return;
-
- failed:
-	CDEBUG(D_NET, "rx %p conn %p\n", rx, conn);
-	kiblnd_close_conn(conn, err);
- ignore:
-	kiblnd_drop_rx(rx);		     /* Don't re-post rx. */
-}
-
-static struct page *
-kiblnd_kvaddr_to_page(unsigned long vaddr)
-{
-	struct page *page;
-
-	if (is_vmalloc_addr((void *)vaddr)) {
-		page = vmalloc_to_page((void *)vaddr);
-		LASSERT(page != NULL);
-		return page;
-	}
-#ifdef CONFIG_HIGHMEM
-	if (vaddr >= PKMAP_BASE &&
-	    vaddr < (PKMAP_BASE + LAST_PKMAP * PAGE_SIZE)) {
-		/* No highmem pages only used for bulk (kiov) I/O */
-		CERROR("find page for address in highmem\n");
-		LBUG();
-	}
-#endif
-	page = virt_to_page(vaddr);
-	LASSERT(page != NULL);
-	return page;
-}
-
-static int
-kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, int nob)
-{
-	kib_hca_dev_t *hdev;
-	__u64 *pages = tx->tx_pages;
-	kib_fmr_poolset_t *fps;
-	int npages;
-	int size;
-	int cpt;
-	int rc;
-	int i;
-
-	LASSERT(tx->tx_pool != NULL);
-	LASSERT(tx->tx_pool->tpo_pool.po_owner != NULL);
-
-	hdev = tx->tx_pool->tpo_hdev;
-
-	for (i = 0, npages = 0; i < rd->rd_nfrags; i++) {
-		for (size = 0; size <  rd->rd_frags[i].rf_nob;
-			       size += hdev->ibh_page_size) {
-			pages[npages++] = (rd->rd_frags[i].rf_addr &
-					    hdev->ibh_page_mask) + size;
-		}
-	}
-
-	cpt = tx->tx_pool->tpo_pool.po_owner->ps_cpt;
-
-	fps = net->ibn_fmr_ps[cpt];
-	rc = kiblnd_fmr_pool_map(fps, pages, npages, 0, &tx->fmr);
-	if (rc != 0) {
-		CERROR("Can't map %d pages: %d\n", npages, rc);
-		return rc;
-	}
-
-	/* If rd is not tx_rd, it's going to get sent to a peer, who will need
-	 * the rkey */
-	rd->rd_key = (rd != tx->tx_rd) ? tx->fmr.fmr_pfmr->fmr->rkey :
-					 tx->fmr.fmr_pfmr->fmr->lkey;
-	rd->rd_frags[0].rf_addr &= ~hdev->ibh_page_mask;
-	rd->rd_frags[0].rf_nob = nob;
-	rd->rd_nfrags = 1;
-
-	return 0;
-}
-
-void
-kiblnd_unmap_tx(lnet_ni_t *ni, kib_tx_t *tx)
-{
-	kib_net_t *net = ni->ni_data;
-
-	LASSERT(net != NULL);
-
-	if (net->ibn_fmr_ps && tx->fmr.fmr_pfmr) {
-		kiblnd_fmr_pool_unmap(&tx->fmr, tx->tx_status);
-		tx->fmr.fmr_pfmr = NULL;
-	}
-
-	if (tx->tx_nfrags != 0) {
-		kiblnd_dma_unmap_sg(tx->tx_pool->tpo_hdev->ibh_ibdev,
-				    tx->tx_frags, tx->tx_nfrags, tx->tx_dmadir);
-		tx->tx_nfrags = 0;
-	}
-}
-
-int
-kiblnd_map_tx(lnet_ni_t *ni, kib_tx_t *tx,
-	      kib_rdma_desc_t *rd, int nfrags)
-{
-	kib_hca_dev_t *hdev = tx->tx_pool->tpo_hdev;
-	kib_net_t *net = ni->ni_data;
-	struct ib_mr *mr    = NULL;
-	__u32 nob;
-	int i;
-
-	/* If rd is not tx_rd, it's going to get sent to a peer and I'm the
-	 * RDMA sink */
-	tx->tx_dmadir = (rd != tx->tx_rd) ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
-	tx->tx_nfrags = nfrags;
-
-	rd->rd_nfrags = kiblnd_dma_map_sg(hdev->ibh_ibdev, tx->tx_frags,
-					  tx->tx_nfrags, tx->tx_dmadir);
-
-	for (i = 0, nob = 0; i < rd->rd_nfrags; i++) {
-		rd->rd_frags[i].rf_nob  = kiblnd_sg_dma_len(
-			hdev->ibh_ibdev, &tx->tx_frags[i]);
-		rd->rd_frags[i].rf_addr = kiblnd_sg_dma_address(
-			hdev->ibh_ibdev, &tx->tx_frags[i]);
-		nob += rd->rd_frags[i].rf_nob;
-	}
-
-	/* looking for pre-mapping MR */
-	mr = kiblnd_find_rd_dma_mr(hdev, rd);
-	if (mr != NULL) {
-		/* found pre-mapping MR */
-		rd->rd_key = (rd != tx->tx_rd) ? mr->rkey : mr->lkey;
-		return 0;
-	}
-
-	if (net->ibn_fmr_ps != NULL)
-		return kiblnd_fmr_map_tx(net, tx, rd, nob);
-
-	return -EINVAL;
-}
-
-
-static int
-kiblnd_setup_rd_iov(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
-		    unsigned int niov, struct kvec *iov, int offset, int nob)
-{
-	kib_net_t *net = ni->ni_data;
-	struct page *page;
-	struct scatterlist *sg;
-	unsigned long vaddr;
-	int fragnob;
-	int page_offset;
-
-	LASSERT(nob > 0);
-	LASSERT(niov > 0);
-	LASSERT(net != NULL);
-
-	while (offset >= iov->iov_len) {
-		offset -= iov->iov_len;
-		niov--;
-		iov++;
-		LASSERT(niov > 0);
-	}
-
-	sg = tx->tx_frags;
-	do {
-		LASSERT(niov > 0);
-
-		vaddr = ((unsigned long)iov->iov_base) + offset;
-		page_offset = vaddr & (PAGE_SIZE - 1);
-		page = kiblnd_kvaddr_to_page(vaddr);
-		if (page == NULL) {
-			CERROR("Can't find page\n");
-			return -EFAULT;
-		}
-
-		fragnob = min((int)(iov->iov_len - offset), nob);
-		fragnob = min(fragnob, (int)PAGE_SIZE - page_offset);
-
-		sg_set_page(sg, page, fragnob, page_offset);
-		sg++;
-
-		if (offset + fragnob < iov->iov_len) {
-			offset += fragnob;
-		} else {
-			offset = 0;
-			iov++;
-			niov--;
-		}
-		nob -= fragnob;
-	} while (nob > 0);
-
-	return kiblnd_map_tx(ni, tx, rd, sg - tx->tx_frags);
-}
-
-static int
-kiblnd_setup_rd_kiov(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd,
-		      int nkiov, lnet_kiov_t *kiov, int offset, int nob)
-{
-	kib_net_t *net = ni->ni_data;
-	struct scatterlist *sg;
-	int fragnob;
-
-	CDEBUG(D_NET, "niov %d offset %d nob %d\n", nkiov, offset, nob);
-
-	LASSERT(nob > 0);
-	LASSERT(nkiov > 0);
-	LASSERT(net != NULL);
-
-	while (offset >= kiov->kiov_len) {
-		offset -= kiov->kiov_len;
-		nkiov--;
-		kiov++;
-		LASSERT(nkiov > 0);
-	}
-
-	sg = tx->tx_frags;
-	do {
-		LASSERT(nkiov > 0);
-
-		fragnob = min((int)(kiov->kiov_len - offset), nob);
-
-		sg_set_page(sg, kiov->kiov_page, fragnob,
-			    kiov->kiov_offset + offset);
-		sg++;
-
-		offset = 0;
-		kiov++;
-		nkiov--;
-		nob -= fragnob;
-	} while (nob > 0);
-
-	return kiblnd_map_tx(ni, tx, rd, sg - tx->tx_frags);
-}
-
-static int
-kiblnd_post_tx_locked(kib_conn_t *conn, kib_tx_t *tx, int credit)
-	__releases(conn->ibc_lock)
-	__acquires(conn->ibc_lock)
-{
-	kib_msg_t *msg = tx->tx_msg;
-	kib_peer_t *peer = conn->ibc_peer;
-	int ver = conn->ibc_version;
-	int rc;
-	int done;
-	struct ib_send_wr *bad_wrq;
-
-	LASSERT(tx->tx_queued);
-	/* We rely on this for QP sizing */
-	LASSERT(tx->tx_nwrq > 0);
-	LASSERT(tx->tx_nwrq <= 1 + IBLND_RDMA_FRAGS(ver));
-
-	LASSERT(credit == 0 || credit == 1);
-	LASSERT(conn->ibc_outstanding_credits >= 0);
-	LASSERT(conn->ibc_outstanding_credits <= IBLND_MSG_QUEUE_SIZE(ver));
-	LASSERT(conn->ibc_credits >= 0);
-	LASSERT(conn->ibc_credits <= IBLND_MSG_QUEUE_SIZE(ver));
-
-	if (conn->ibc_nsends_posted == IBLND_CONCURRENT_SENDS(ver)) {
-		/* tx completions outstanding... */
-		CDEBUG(D_NET, "%s: posted enough\n",
-		       libcfs_nid2str(peer->ibp_nid));
-		return -EAGAIN;
-	}
-
-	if (credit != 0 && conn->ibc_credits == 0) {   /* no credits */
-		CDEBUG(D_NET, "%s: no credits\n",
-		       libcfs_nid2str(peer->ibp_nid));
-		return -EAGAIN;
-	}
-
-	if (credit != 0 && !IBLND_OOB_CAPABLE(ver) &&
-	    conn->ibc_credits == 1 &&   /* last credit reserved */
-	    msg->ibm_type != IBLND_MSG_NOOP) {      /* for NOOP */
-		CDEBUG(D_NET, "%s: not using last credit\n",
-		       libcfs_nid2str(peer->ibp_nid));
-		return -EAGAIN;
-	}
-
-	/* NB don't drop ibc_lock before bumping tx_sending */
-	list_del(&tx->tx_list);
-	tx->tx_queued = 0;
-
-	if (msg->ibm_type == IBLND_MSG_NOOP &&
-	    (!kiblnd_need_noop(conn) ||     /* redundant NOOP */
-	     (IBLND_OOB_CAPABLE(ver) && /* posted enough NOOP */
-	      conn->ibc_noops_posted == IBLND_OOB_MSGS(ver)))) {
-		/* OK to drop when posted enough NOOPs, since
-		 * kiblnd_check_sends will queue NOOP again when
-		 * posted NOOPs complete */
-		spin_unlock(&conn->ibc_lock);
-		kiblnd_tx_done(peer->ibp_ni, tx);
-		spin_lock(&conn->ibc_lock);
-		CDEBUG(D_NET, "%s(%d): redundant or enough NOOP\n",
-		       libcfs_nid2str(peer->ibp_nid),
-		       conn->ibc_noops_posted);
-		return 0;
-	}
-
-	kiblnd_pack_msg(peer->ibp_ni, msg, ver, conn->ibc_outstanding_credits,
-			peer->ibp_nid, conn->ibc_incarnation);
-
-	conn->ibc_credits -= credit;
-	conn->ibc_outstanding_credits = 0;
-	conn->ibc_nsends_posted++;
-	if (msg->ibm_type == IBLND_MSG_NOOP)
-		conn->ibc_noops_posted++;
-
-	/* CAVEAT EMPTOR!  This tx could be the PUT_DONE of an RDMA
-	 * PUT.  If so, it was first queued here as a PUT_REQ, sent and
-	 * stashed on ibc_active_txs, matched by an incoming PUT_ACK,
-	 * and then re-queued here.  It's (just) possible that
-	 * tx_sending is non-zero if we've not done the tx_complete()
-	 * from the first send; hence the ++ rather than = below. */
-	tx->tx_sending++;
-	list_add(&tx->tx_list, &conn->ibc_active_txs);
-
-	/* I'm still holding ibc_lock! */
-	if (conn->ibc_state != IBLND_CONN_ESTABLISHED) {
-		rc = -ECONNABORTED;
-	} else if (tx->tx_pool->tpo_pool.po_failed ||
-		 conn->ibc_hdev != tx->tx_pool->tpo_hdev) {
-		/* close_conn will launch failover */
-		rc = -ENETDOWN;
-	} else {
-		rc = ib_post_send(conn->ibc_cmid->qp, tx->tx_wrq, &bad_wrq);
-	}
-
-	conn->ibc_last_send = jiffies;
-
-	if (rc == 0)
-		return 0;
-
-	/* NB credits are transferred in the actual
-	 * message, which can only be the last work item */
-	conn->ibc_credits += credit;
-	conn->ibc_outstanding_credits += msg->ibm_credits;
-	conn->ibc_nsends_posted--;
-	if (msg->ibm_type == IBLND_MSG_NOOP)
-		conn->ibc_noops_posted--;
-
-	tx->tx_status = rc;
-	tx->tx_waiting = 0;
-	tx->tx_sending--;
-
-	done = (tx->tx_sending == 0);
-	if (done)
-		list_del(&tx->tx_list);
-
-	spin_unlock(&conn->ibc_lock);
-
-	if (conn->ibc_state == IBLND_CONN_ESTABLISHED)
-		CERROR("Error %d posting transmit to %s\n",
-		       rc, libcfs_nid2str(peer->ibp_nid));
-	else
-		CDEBUG(D_NET, "Error %d posting transmit to %s\n",
-		       rc, libcfs_nid2str(peer->ibp_nid));
-
-	kiblnd_close_conn(conn, rc);
-
-	if (done)
-		kiblnd_tx_done(peer->ibp_ni, tx);
-
-	spin_lock(&conn->ibc_lock);
-
-	return -EIO;
-}
-
-void
-kiblnd_check_sends(kib_conn_t *conn)
-{
-	int ver = conn->ibc_version;
-	lnet_ni_t *ni = conn->ibc_peer->ibp_ni;
-	kib_tx_t *tx;
-
-	/* Don't send anything until after the connection is established */
-	if (conn->ibc_state < IBLND_CONN_ESTABLISHED) {
-		CDEBUG(D_NET, "%s too soon\n",
-		       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		return;
-	}
-
-	spin_lock(&conn->ibc_lock);
-
-	LASSERT(conn->ibc_nsends_posted <= IBLND_CONCURRENT_SENDS(ver));
-	LASSERT(!IBLND_OOB_CAPABLE(ver) ||
-		 conn->ibc_noops_posted <= IBLND_OOB_MSGS(ver));
-	LASSERT(conn->ibc_reserved_credits >= 0);
-
-	while (conn->ibc_reserved_credits > 0 &&
-	       !list_empty(&conn->ibc_tx_queue_rsrvd)) {
-		tx = list_entry(conn->ibc_tx_queue_rsrvd.next,
-				    kib_tx_t, tx_list);
-		list_del(&tx->tx_list);
-		list_add_tail(&tx->tx_list, &conn->ibc_tx_queue);
-		conn->ibc_reserved_credits--;
-	}
-
-	if (kiblnd_need_noop(conn)) {
-		spin_unlock(&conn->ibc_lock);
-
-		tx = kiblnd_get_idle_tx(ni, conn->ibc_peer->ibp_nid);
-		if (tx != NULL)
-			kiblnd_init_tx_msg(ni, tx, IBLND_MSG_NOOP, 0);
-
-		spin_lock(&conn->ibc_lock);
-		if (tx != NULL)
-			kiblnd_queue_tx_locked(tx, conn);
-	}
-
-	kiblnd_conn_addref(conn); /* 1 ref for me.... (see b21911) */
-
-	for (;;) {
-		int credit;
-
-		if (!list_empty(&conn->ibc_tx_queue_nocred)) {
-			credit = 0;
-			tx = list_entry(conn->ibc_tx_queue_nocred.next,
-					    kib_tx_t, tx_list);
-		} else if (!list_empty(&conn->ibc_tx_noops)) {
-			LASSERT(!IBLND_OOB_CAPABLE(ver));
-			credit = 1;
-			tx = list_entry(conn->ibc_tx_noops.next,
-					kib_tx_t, tx_list);
-		} else if (!list_empty(&conn->ibc_tx_queue)) {
-			credit = 1;
-			tx = list_entry(conn->ibc_tx_queue.next,
-					    kib_tx_t, tx_list);
-		} else
-			break;
-
-		if (kiblnd_post_tx_locked(conn, tx, credit) != 0)
-			break;
-	}
-
-	spin_unlock(&conn->ibc_lock);
-
-	kiblnd_conn_decref(conn); /* ...until here */
-}
-
-static void
-kiblnd_tx_complete(kib_tx_t *tx, int status)
-{
-	int failed = (status != IB_WC_SUCCESS);
-	kib_conn_t *conn = tx->tx_conn;
-	int idle;
-
-	LASSERT(tx->tx_sending > 0);
-
-	if (failed) {
-		if (conn->ibc_state == IBLND_CONN_ESTABLISHED)
-			CNETERR("Tx -> %s cookie %#llx sending %d waiting %d: failed %d\n",
-				libcfs_nid2str(conn->ibc_peer->ibp_nid),
-				tx->tx_cookie, tx->tx_sending, tx->tx_waiting,
-				status);
-
-		kiblnd_close_conn(conn, -EIO);
-	} else {
-		kiblnd_peer_alive(conn->ibc_peer);
-	}
-
-	spin_lock(&conn->ibc_lock);
-
-	/* I could be racing with rdma completion.  Whoever makes 'tx' idle
-	 * gets to free it, which also drops its ref on 'conn'. */
-
-	tx->tx_sending--;
-	conn->ibc_nsends_posted--;
-	if (tx->tx_msg->ibm_type == IBLND_MSG_NOOP)
-		conn->ibc_noops_posted--;
-
-	if (failed) {
-		tx->tx_waiting = 0;	     /* don't wait for peer */
-		tx->tx_status = -EIO;
-	}
-
-	idle = (tx->tx_sending == 0) &&	 /* This is the final callback */
-	       !tx->tx_waiting &&	       /* Not waiting for peer */
-	       !tx->tx_queued;		  /* Not re-queued (PUT_DONE) */
-	if (idle)
-		list_del(&tx->tx_list);
-
-	kiblnd_conn_addref(conn);	       /* 1 ref for me.... */
-
-	spin_unlock(&conn->ibc_lock);
-
-	if (idle)
-		kiblnd_tx_done(conn->ibc_peer->ibp_ni, tx);
-
-	kiblnd_check_sends(conn);
-
-	kiblnd_conn_decref(conn);	       /* ...until here */
-}
-
-void
-kiblnd_init_tx_msg(lnet_ni_t *ni, kib_tx_t *tx, int type, int body_nob)
-{
-	kib_hca_dev_t *hdev = tx->tx_pool->tpo_hdev;
-	struct ib_sge *sge = &tx->tx_sge[tx->tx_nwrq];
-	struct ib_send_wr *wrq = &tx->tx_wrq[tx->tx_nwrq];
-	int nob = offsetof(kib_msg_t, ibm_u) + body_nob;
-	struct ib_mr *mr;
-
-	LASSERT(tx->tx_nwrq >= 0);
-	LASSERT(tx->tx_nwrq < IBLND_MAX_RDMA_FRAGS + 1);
-	LASSERT(nob <= IBLND_MSG_SIZE);
-
-	kiblnd_init_msg(tx->tx_msg, type, body_nob);
-
-	mr = kiblnd_find_dma_mr(hdev, tx->tx_msgaddr, nob);
-	LASSERT(mr != NULL);
-
-	sge->lkey   = mr->lkey;
-	sge->addr   = tx->tx_msgaddr;
-	sge->length = nob;
-
-	memset(wrq, 0, sizeof(*wrq));
-
-	wrq->next       = NULL;
-	wrq->wr_id      = kiblnd_ptr2wreqid(tx, IBLND_WID_TX);
-	wrq->sg_list    = sge;
-	wrq->num_sge    = 1;
-	wrq->opcode     = IB_WR_SEND;
-	wrq->send_flags = IB_SEND_SIGNALED;
-
-	tx->tx_nwrq++;
-}
-
-int
-kiblnd_init_rdma(kib_conn_t *conn, kib_tx_t *tx, int type,
-		  int resid, kib_rdma_desc_t *dstrd, __u64 dstcookie)
-{
-	kib_msg_t *ibmsg = tx->tx_msg;
-	kib_rdma_desc_t *srcrd = tx->tx_rd;
-	struct ib_sge *sge = &tx->tx_sge[0];
-	struct ib_send_wr *wrq = &tx->tx_wrq[0];
-	int rc  = resid;
-	int srcidx;
-	int dstidx;
-	int wrknob;
-
-	LASSERT(!in_interrupt());
-	LASSERT(tx->tx_nwrq == 0);
-	LASSERT(type == IBLND_MSG_GET_DONE ||
-		 type == IBLND_MSG_PUT_DONE);
-
-	srcidx = dstidx = 0;
-
-	while (resid > 0) {
-		if (srcidx >= srcrd->rd_nfrags) {
-			CERROR("Src buffer exhausted: %d frags\n", srcidx);
-			rc = -EPROTO;
-			break;
-		}
-
-		if (dstidx == dstrd->rd_nfrags) {
-			CERROR("Dst buffer exhausted: %d frags\n", dstidx);
-			rc = -EPROTO;
-			break;
-		}
-
-		if (tx->tx_nwrq == IBLND_RDMA_FRAGS(conn->ibc_version)) {
-			CERROR("RDMA too fragmented for %s (%d): %d/%d src %d/%d dst frags\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid),
-			       IBLND_RDMA_FRAGS(conn->ibc_version),
-			       srcidx, srcrd->rd_nfrags,
-			       dstidx, dstrd->rd_nfrags);
-			rc = -EMSGSIZE;
-			break;
-		}
-
-		wrknob = min(min(kiblnd_rd_frag_size(srcrd, srcidx),
-				 kiblnd_rd_frag_size(dstrd, dstidx)),
-			     (__u32) resid);
-
-		sge = &tx->tx_sge[tx->tx_nwrq];
-		sge->addr   = kiblnd_rd_frag_addr(srcrd, srcidx);
-		sge->lkey   = kiblnd_rd_frag_key(srcrd, srcidx);
-		sge->length = wrknob;
-
-		wrq = &tx->tx_wrq[tx->tx_nwrq];
-
-		wrq->next       = wrq + 1;
-		wrq->wr_id      = kiblnd_ptr2wreqid(tx, IBLND_WID_RDMA);
-		wrq->sg_list    = sge;
-		wrq->num_sge    = 1;
-		wrq->opcode     = IB_WR_RDMA_WRITE;
-		wrq->send_flags = 0;
-
-		wrq->wr.rdma.remote_addr = kiblnd_rd_frag_addr(dstrd, dstidx);
-		wrq->wr.rdma.rkey        = kiblnd_rd_frag_key(dstrd, dstidx);
-
-		srcidx = kiblnd_rd_consume_frag(srcrd, srcidx, wrknob);
-		dstidx = kiblnd_rd_consume_frag(dstrd, dstidx, wrknob);
-
-		resid -= wrknob;
-
-		tx->tx_nwrq++;
-		wrq++;
-		sge++;
-	}
-
-	if (rc < 0)			     /* no RDMA if completing with failure */
-		tx->tx_nwrq = 0;
-
-	ibmsg->ibm_u.completion.ibcm_status = rc;
-	ibmsg->ibm_u.completion.ibcm_cookie = dstcookie;
-	kiblnd_init_tx_msg(conn->ibc_peer->ibp_ni, tx,
-			   type, sizeof(kib_completion_msg_t));
-
-	return rc;
-}
-
-void
-kiblnd_queue_tx_locked(kib_tx_t *tx, kib_conn_t *conn)
-{
-	struct list_head *q;
-
-	LASSERT(tx->tx_nwrq > 0);	      /* work items set up */
-	LASSERT(!tx->tx_queued);	       /* not queued for sending already */
-	LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
-
-	tx->tx_queued = 1;
-	tx->tx_deadline = jiffies + (*kiblnd_tunables.kib_timeout * HZ);
-
-	if (tx->tx_conn == NULL) {
-		kiblnd_conn_addref(conn);
-		tx->tx_conn = conn;
-		LASSERT(tx->tx_msg->ibm_type != IBLND_MSG_PUT_DONE);
-	} else {
-		/* PUT_DONE first attached to conn as a PUT_REQ */
-		LASSERT(tx->tx_conn == conn);
-		LASSERT(tx->tx_msg->ibm_type == IBLND_MSG_PUT_DONE);
-	}
-
-	switch (tx->tx_msg->ibm_type) {
-	default:
-		LBUG();
-
-	case IBLND_MSG_PUT_REQ:
-	case IBLND_MSG_GET_REQ:
-		q = &conn->ibc_tx_queue_rsrvd;
-		break;
-
-	case IBLND_MSG_PUT_NAK:
-	case IBLND_MSG_PUT_ACK:
-	case IBLND_MSG_PUT_DONE:
-	case IBLND_MSG_GET_DONE:
-		q = &conn->ibc_tx_queue_nocred;
-		break;
-
-	case IBLND_MSG_NOOP:
-		if (IBLND_OOB_CAPABLE(conn->ibc_version))
-			q = &conn->ibc_tx_queue_nocred;
-		else
-			q = &conn->ibc_tx_noops;
-		break;
-
-	case IBLND_MSG_IMMEDIATE:
-		q = &conn->ibc_tx_queue;
-		break;
-	}
-
-	list_add_tail(&tx->tx_list, q);
-}
-
-void
-kiblnd_queue_tx(kib_tx_t *tx, kib_conn_t *conn)
-{
-	spin_lock(&conn->ibc_lock);
-	kiblnd_queue_tx_locked(tx, conn);
-	spin_unlock(&conn->ibc_lock);
-
-	kiblnd_check_sends(conn);
-}
-
-static int kiblnd_resolve_addr(struct rdma_cm_id *cmid,
-			       struct sockaddr_in *srcaddr,
-			       struct sockaddr_in *dstaddr,
-			       int timeout_ms)
-{
-	unsigned short port;
-	int rc;
-
-	/* allow the port to be reused */
-	rc = rdma_set_reuseaddr(cmid, 1);
-	if (rc != 0) {
-		CERROR("Unable to set reuse on cmid: %d\n", rc);
-		return rc;
-	}
-
-	/* look for a free privileged port */
-	for (port = PROT_SOCK-1; port > 0; port--) {
-		srcaddr->sin_port = htons(port);
-		rc = rdma_resolve_addr(cmid,
-				       (struct sockaddr *)srcaddr,
-				       (struct sockaddr *)dstaddr,
-				       timeout_ms);
-		if (rc == 0) {
-			CDEBUG(D_NET, "bound to port %hu\n", port);
-			return 0;
-		} else if (rc == -EADDRINUSE || rc == -EADDRNOTAVAIL) {
-			CDEBUG(D_NET, "bind to port %hu failed: %d\n",
-			       port, rc);
-		} else {
-			return rc;
-		}
-	}
-
-	CERROR("Failed to bind to a free privileged port\n");
-	return rc;
-}
-
-static void
-kiblnd_connect_peer(kib_peer_t *peer)
-{
-	struct rdma_cm_id *cmid;
-	kib_dev_t *dev;
-	kib_net_t *net = peer->ibp_ni->ni_data;
-	struct sockaddr_in srcaddr;
-	struct sockaddr_in dstaddr;
-	int rc;
-
-	LASSERT(net != NULL);
-	LASSERT(peer->ibp_connecting > 0);
-
-	cmid = kiblnd_rdma_create_id(kiblnd_cm_callback, peer, RDMA_PS_TCP,
-				     IB_QPT_RC);
-
-	if (IS_ERR(cmid)) {
-		CERROR("Can't create CMID for %s: %ld\n",
-		       libcfs_nid2str(peer->ibp_nid), PTR_ERR(cmid));
-		rc = PTR_ERR(cmid);
-		goto failed;
-	}
-
-	dev = net->ibn_dev;
-	memset(&srcaddr, 0, sizeof(srcaddr));
-	srcaddr.sin_family = AF_INET;
-	srcaddr.sin_addr.s_addr = htonl(dev->ibd_ifip);
-
-	memset(&dstaddr, 0, sizeof(dstaddr));
-	dstaddr.sin_family = AF_INET;
-	dstaddr.sin_port = htons(*kiblnd_tunables.kib_service);
-	dstaddr.sin_addr.s_addr = htonl(LNET_NIDADDR(peer->ibp_nid));
-
-	kiblnd_peer_addref(peer);	       /* cmid's ref */
-
-	if (*kiblnd_tunables.kib_use_priv_port) {
-		rc = kiblnd_resolve_addr(cmid, &srcaddr, &dstaddr,
-					 *kiblnd_tunables.kib_timeout * 1000);
-	} else {
-		rc = rdma_resolve_addr(cmid,
-				       (struct sockaddr *)&srcaddr,
-				       (struct sockaddr *)&dstaddr,
-				       *kiblnd_tunables.kib_timeout * 1000);
-	}
-	if (rc != 0) {
-		/* Can't initiate address resolution:  */
-		CERROR("Can't resolve addr for %s: %d\n",
-		       libcfs_nid2str(peer->ibp_nid), rc);
-		goto failed2;
-	}
-
-	LASSERT(cmid->device != NULL);
-	CDEBUG(D_NET, "%s: connection bound to %s:%pI4h:%s\n",
-	       libcfs_nid2str(peer->ibp_nid), dev->ibd_ifname,
-	       &dev->ibd_ifip, cmid->device->name);
-
-	return;
-
- failed2:
-	kiblnd_peer_decref(peer);	       /* cmid's ref */
-	rdma_destroy_id(cmid);
- failed:
-	kiblnd_peer_connect_failed(peer, 1, rc);
-}
-
-void
-kiblnd_launch_tx(lnet_ni_t *ni, kib_tx_t *tx, lnet_nid_t nid)
-{
-	kib_peer_t *peer;
-	kib_peer_t *peer2;
-	kib_conn_t *conn;
-	rwlock_t *g_lock = &kiblnd_data.kib_global_lock;
-	unsigned long flags;
-	int rc;
-
-	/* If I get here, I've committed to send, so I complete the tx with
-	 * failure on any problems */
-
-	LASSERT(tx == NULL || tx->tx_conn == NULL); /* only set when assigned a conn */
-	LASSERT(tx == NULL || tx->tx_nwrq > 0);     /* work items have been set up */
-
-	/* First time, just use a read lock since I expect to find my peer
-	 * connected */
-	read_lock_irqsave(g_lock, flags);
-
-	peer = kiblnd_find_peer_locked(nid);
-	if (peer != NULL && !list_empty(&peer->ibp_conns)) {
-		/* Found a peer with an established connection */
-		conn = kiblnd_get_conn_locked(peer);
-		kiblnd_conn_addref(conn); /* 1 ref for me... */
-
-		read_unlock_irqrestore(g_lock, flags);
-
-		if (tx != NULL)
-			kiblnd_queue_tx(tx, conn);
-		kiblnd_conn_decref(conn); /* ...to here */
-		return;
-	}
-
-	read_unlock(g_lock);
-	/* Re-try with a write lock */
-	write_lock(g_lock);
-
-	peer = kiblnd_find_peer_locked(nid);
-	if (peer != NULL) {
-		if (list_empty(&peer->ibp_conns)) {
-			/* found a peer, but it's still connecting... */
-			LASSERT(peer->ibp_connecting != 0 ||
-				 peer->ibp_accepting != 0);
-			if (tx != NULL)
-				list_add_tail(&tx->tx_list,
-						  &peer->ibp_tx_queue);
-			write_unlock_irqrestore(g_lock, flags);
-		} else {
-			conn = kiblnd_get_conn_locked(peer);
-			kiblnd_conn_addref(conn); /* 1 ref for me... */
-
-			write_unlock_irqrestore(g_lock, flags);
-
-			if (tx != NULL)
-				kiblnd_queue_tx(tx, conn);
-			kiblnd_conn_decref(conn); /* ...to here */
-		}
-		return;
-	}
-
-	write_unlock_irqrestore(g_lock, flags);
-
-	/* Allocate a peer ready to add to the peer table and retry */
-	rc = kiblnd_create_peer(ni, &peer, nid);
-	if (rc != 0) {
-		CERROR("Can't create peer %s\n", libcfs_nid2str(nid));
-		if (tx != NULL) {
-			tx->tx_status = -EHOSTUNREACH;
-			tx->tx_waiting = 0;
-			kiblnd_tx_done(ni, tx);
-		}
-		return;
-	}
-
-	write_lock_irqsave(g_lock, flags);
-
-	peer2 = kiblnd_find_peer_locked(nid);
-	if (peer2 != NULL) {
-		if (list_empty(&peer2->ibp_conns)) {
-			/* found a peer, but it's still connecting... */
-			LASSERT(peer2->ibp_connecting != 0 ||
-				 peer2->ibp_accepting != 0);
-			if (tx != NULL)
-				list_add_tail(&tx->tx_list,
-						  &peer2->ibp_tx_queue);
-			write_unlock_irqrestore(g_lock, flags);
-		} else {
-			conn = kiblnd_get_conn_locked(peer2);
-			kiblnd_conn_addref(conn); /* 1 ref for me... */
-
-			write_unlock_irqrestore(g_lock, flags);
-
-			if (tx != NULL)
-				kiblnd_queue_tx(tx, conn);
-			kiblnd_conn_decref(conn); /* ...to here */
-		}
-
-		kiblnd_peer_decref(peer);
-		return;
-	}
-
-	/* Brand new peer */
-	LASSERT(peer->ibp_connecting == 0);
-	peer->ibp_connecting = 1;
-
-	/* always called with a ref on ni, which prevents ni being shutdown */
-	LASSERT(((kib_net_t *)ni->ni_data)->ibn_shutdown == 0);
-
-	if (tx != NULL)
-		list_add_tail(&tx->tx_list, &peer->ibp_tx_queue);
-
-	kiblnd_peer_addref(peer);
-	list_add_tail(&peer->ibp_list, kiblnd_nid2peerlist(nid));
-
-	write_unlock_irqrestore(g_lock, flags);
-
-	kiblnd_connect_peer(peer);
-	kiblnd_peer_decref(peer);
-}
-
-int
-kiblnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
-{
-	lnet_hdr_t *hdr = &lntmsg->msg_hdr;
-	int type = lntmsg->msg_type;
-	lnet_process_id_t target = lntmsg->msg_target;
-	int target_is_router = lntmsg->msg_target_is_router;
-	int routing = lntmsg->msg_routing;
-	unsigned int payload_niov = lntmsg->msg_niov;
-	struct kvec *payload_iov = lntmsg->msg_iov;
-	lnet_kiov_t *payload_kiov = lntmsg->msg_kiov;
-	unsigned int payload_offset = lntmsg->msg_offset;
-	unsigned int payload_nob = lntmsg->msg_len;
-	kib_msg_t *ibmsg;
-	kib_tx_t *tx;
-	int nob;
-	int rc;
-
-	/* NB 'private' is different depending on what we're sending.... */
-
-	CDEBUG(D_NET, "sending %d bytes in %d frags to %s\n",
-	       payload_nob, payload_niov, libcfs_id2str(target));
-
-	LASSERT(payload_nob == 0 || payload_niov > 0);
-	LASSERT(payload_niov <= LNET_MAX_IOV);
-
-	/* Thread context */
-	LASSERT(!in_interrupt());
-	/* payload is either all vaddrs or all pages */
-	LASSERT(!(payload_kiov != NULL && payload_iov != NULL));
-
-	switch (type) {
-	default:
-		LBUG();
-		return -EIO;
-
-	case LNET_MSG_ACK:
-		LASSERT(payload_nob == 0);
-		break;
-
-	case LNET_MSG_GET:
-		if (routing || target_is_router)
-			break;		  /* send IMMEDIATE */
-
-		/* is the REPLY message too small for RDMA? */
-		nob = offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[lntmsg->msg_md->md_length]);
-		if (nob <= IBLND_MSG_SIZE)
-			break;		  /* send IMMEDIATE */
-
-		tx = kiblnd_get_idle_tx(ni, target.nid);
-		if (tx == NULL) {
-			CERROR("Can't allocate txd for GET to %s\n",
-			       libcfs_nid2str(target.nid));
-			return -ENOMEM;
-		}
-
-		ibmsg = tx->tx_msg;
-
-		if ((lntmsg->msg_md->md_options & LNET_MD_KIOV) == 0)
-			rc = kiblnd_setup_rd_iov(ni, tx,
-						 &ibmsg->ibm_u.get.ibgm_rd,
-						 lntmsg->msg_md->md_niov,
-						 lntmsg->msg_md->md_iov.iov,
-						 0, lntmsg->msg_md->md_length);
-		else
-			rc = kiblnd_setup_rd_kiov(ni, tx,
-						  &ibmsg->ibm_u.get.ibgm_rd,
-						  lntmsg->msg_md->md_niov,
-						  lntmsg->msg_md->md_iov.kiov,
-						  0, lntmsg->msg_md->md_length);
-		if (rc != 0) {
-			CERROR("Can't setup GET sink for %s: %d\n",
-			       libcfs_nid2str(target.nid), rc);
-			kiblnd_tx_done(ni, tx);
-			return -EIO;
-		}
-
-		nob = offsetof(kib_get_msg_t, ibgm_rd.rd_frags[tx->tx_nfrags]);
-		ibmsg->ibm_u.get.ibgm_cookie = tx->tx_cookie;
-		ibmsg->ibm_u.get.ibgm_hdr = *hdr;
-
-		kiblnd_init_tx_msg(ni, tx, IBLND_MSG_GET_REQ, nob);
-
-		tx->tx_lntmsg[1] = lnet_create_reply_msg(ni, lntmsg);
-		if (tx->tx_lntmsg[1] == NULL) {
-			CERROR("Can't create reply for GET -> %s\n",
-			       libcfs_nid2str(target.nid));
-			kiblnd_tx_done(ni, tx);
-			return -EIO;
-		}
-
-		tx->tx_lntmsg[0] = lntmsg;      /* finalise lntmsg[0,1] on completion */
-		tx->tx_waiting = 1;	     /* waiting for GET_DONE */
-		kiblnd_launch_tx(ni, tx, target.nid);
-		return 0;
-
-	case LNET_MSG_REPLY:
-	case LNET_MSG_PUT:
-		/* Is the payload small enough not to need RDMA? */
-		nob = offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[payload_nob]);
-		if (nob <= IBLND_MSG_SIZE)
-			break;		  /* send IMMEDIATE */
-
-		tx = kiblnd_get_idle_tx(ni, target.nid);
-		if (tx == NULL) {
-			CERROR("Can't allocate %s txd for %s\n",
-			       type == LNET_MSG_PUT ? "PUT" : "REPLY",
-			       libcfs_nid2str(target.nid));
-			return -ENOMEM;
-		}
-
-		if (payload_kiov == NULL)
-			rc = kiblnd_setup_rd_iov(ni, tx, tx->tx_rd,
-						 payload_niov, payload_iov,
-						 payload_offset, payload_nob);
-		else
-			rc = kiblnd_setup_rd_kiov(ni, tx, tx->tx_rd,
-						  payload_niov, payload_kiov,
-						  payload_offset, payload_nob);
-		if (rc != 0) {
-			CERROR("Can't setup PUT src for %s: %d\n",
-			       libcfs_nid2str(target.nid), rc);
-			kiblnd_tx_done(ni, tx);
-			return -EIO;
-		}
-
-		ibmsg = tx->tx_msg;
-		ibmsg->ibm_u.putreq.ibprm_hdr = *hdr;
-		ibmsg->ibm_u.putreq.ibprm_cookie = tx->tx_cookie;
-		kiblnd_init_tx_msg(ni, tx, IBLND_MSG_PUT_REQ, sizeof(kib_putreq_msg_t));
-
-		tx->tx_lntmsg[0] = lntmsg;      /* finalise lntmsg on completion */
-		tx->tx_waiting = 1;	     /* waiting for PUT_{ACK,NAK} */
-		kiblnd_launch_tx(ni, tx, target.nid);
-		return 0;
-	}
-
-	/* send IMMEDIATE */
-
-	LASSERT(offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[payload_nob])
-		 <= IBLND_MSG_SIZE);
-
-	tx = kiblnd_get_idle_tx(ni, target.nid);
-	if (tx == NULL) {
-		CERROR("Can't send %d to %s: tx descs exhausted\n",
-			type, libcfs_nid2str(target.nid));
-		return -ENOMEM;
-	}
-
-	ibmsg = tx->tx_msg;
-	ibmsg->ibm_u.immediate.ibim_hdr = *hdr;
-
-	if (payload_kiov != NULL)
-		lnet_copy_kiov2flat(IBLND_MSG_SIZE, ibmsg,
-				    offsetof(kib_msg_t, ibm_u.immediate.ibim_payload),
-				    payload_niov, payload_kiov,
-				    payload_offset, payload_nob);
-	else
-		lnet_copy_iov2flat(IBLND_MSG_SIZE, ibmsg,
-				   offsetof(kib_msg_t, ibm_u.immediate.ibim_payload),
-				   payload_niov, payload_iov,
-				   payload_offset, payload_nob);
-
-	nob = offsetof(kib_immediate_msg_t, ibim_payload[payload_nob]);
-	kiblnd_init_tx_msg(ni, tx, IBLND_MSG_IMMEDIATE, nob);
-
-	tx->tx_lntmsg[0] = lntmsg;	      /* finalise lntmsg on completion */
-	kiblnd_launch_tx(ni, tx, target.nid);
-	return 0;
-}
-
-static void
-kiblnd_reply(lnet_ni_t *ni, kib_rx_t *rx, lnet_msg_t *lntmsg)
-{
-	lnet_process_id_t target = lntmsg->msg_target;
-	unsigned int niov = lntmsg->msg_niov;
-	struct kvec *iov = lntmsg->msg_iov;
-	lnet_kiov_t *kiov = lntmsg->msg_kiov;
-	unsigned int offset = lntmsg->msg_offset;
-	unsigned int nob = lntmsg->msg_len;
-	kib_tx_t *tx;
-	int rc;
-
-	tx = kiblnd_get_idle_tx(ni, rx->rx_conn->ibc_peer->ibp_nid);
-	if (tx == NULL) {
-		CERROR("Can't get tx for REPLY to %s\n",
-		       libcfs_nid2str(target.nid));
-		goto failed_0;
-	}
-
-	if (nob == 0)
-		rc = 0;
-	else if (kiov == NULL)
-		rc = kiblnd_setup_rd_iov(ni, tx, tx->tx_rd,
-					 niov, iov, offset, nob);
-	else
-		rc = kiblnd_setup_rd_kiov(ni, tx, tx->tx_rd,
-					  niov, kiov, offset, nob);
-
-	if (rc != 0) {
-		CERROR("Can't setup GET src for %s: %d\n",
-		       libcfs_nid2str(target.nid), rc);
-		goto failed_1;
-	}
-
-	rc = kiblnd_init_rdma(rx->rx_conn, tx,
-			      IBLND_MSG_GET_DONE, nob,
-			      &rx->rx_msg->ibm_u.get.ibgm_rd,
-			      rx->rx_msg->ibm_u.get.ibgm_cookie);
-	if (rc < 0) {
-		CERROR("Can't setup rdma for GET from %s: %d\n",
-		       libcfs_nid2str(target.nid), rc);
-		goto failed_1;
-	}
-
-	if (nob == 0) {
-		/* No RDMA: local completion may happen now! */
-		lnet_finalize(ni, lntmsg, 0);
-	} else {
-		/* RDMA: lnet_finalize(lntmsg) when it
-		 * completes */
-		tx->tx_lntmsg[0] = lntmsg;
-	}
-
-	kiblnd_queue_tx(tx, rx->rx_conn);
-	return;
-
- failed_1:
-	kiblnd_tx_done(ni, tx);
- failed_0:
-	lnet_finalize(ni, lntmsg, -EIO);
-}
-
-int
-kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed,
-	     unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov,
-	     unsigned int offset, unsigned int mlen, unsigned int rlen)
-{
-	kib_rx_t *rx = private;
-	kib_msg_t *rxmsg = rx->rx_msg;
-	kib_conn_t *conn = rx->rx_conn;
-	kib_tx_t *tx;
-	kib_msg_t *txmsg;
-	int nob;
-	int post_credit = IBLND_POSTRX_PEER_CREDIT;
-	int rc = 0;
-
-	LASSERT(mlen <= rlen);
-	LASSERT(!in_interrupt());
-	/* Either all pages or all vaddrs */
-	LASSERT(!(kiov != NULL && iov != NULL));
-
-	switch (rxmsg->ibm_type) {
-	default:
-		LBUG();
-
-	case IBLND_MSG_IMMEDIATE:
-		nob = offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[rlen]);
-		if (nob > rx->rx_nob) {
-			CERROR("Immediate message from %s too big: %d(%d)\n",
-				libcfs_nid2str(rxmsg->ibm_u.immediate.ibim_hdr.src_nid),
-				nob, rx->rx_nob);
-			rc = -EPROTO;
-			break;
-		}
-
-		if (kiov != NULL)
-			lnet_copy_flat2kiov(niov, kiov, offset,
-					    IBLND_MSG_SIZE, rxmsg,
-					    offsetof(kib_msg_t, ibm_u.immediate.ibim_payload),
-					    mlen);
-		else
-			lnet_copy_flat2iov(niov, iov, offset,
-					   IBLND_MSG_SIZE, rxmsg,
-					   offsetof(kib_msg_t, ibm_u.immediate.ibim_payload),
-					   mlen);
-		lnet_finalize(ni, lntmsg, 0);
-		break;
-
-	case IBLND_MSG_PUT_REQ:
-		if (mlen == 0) {
-			lnet_finalize(ni, lntmsg, 0);
-			kiblnd_send_completion(rx->rx_conn, IBLND_MSG_PUT_NAK, 0,
-					       rxmsg->ibm_u.putreq.ibprm_cookie);
-			break;
-		}
-
-		tx = kiblnd_get_idle_tx(ni, conn->ibc_peer->ibp_nid);
-		if (tx == NULL) {
-			CERROR("Can't allocate tx for %s\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-			/* Not replying will break the connection */
-			rc = -ENOMEM;
-			break;
-		}
-
-		txmsg = tx->tx_msg;
-		if (kiov == NULL)
-			rc = kiblnd_setup_rd_iov(ni, tx,
-						 &txmsg->ibm_u.putack.ibpam_rd,
-						 niov, iov, offset, mlen);
-		else
-			rc = kiblnd_setup_rd_kiov(ni, tx,
-						  &txmsg->ibm_u.putack.ibpam_rd,
-						  niov, kiov, offset, mlen);
-		if (rc != 0) {
-			CERROR("Can't setup PUT sink for %s: %d\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid), rc);
-			kiblnd_tx_done(ni, tx);
-			/* tell peer it's over */
-			kiblnd_send_completion(rx->rx_conn, IBLND_MSG_PUT_NAK, rc,
-					       rxmsg->ibm_u.putreq.ibprm_cookie);
-			break;
-		}
-
-		nob = offsetof(kib_putack_msg_t, ibpam_rd.rd_frags[tx->tx_nfrags]);
-		txmsg->ibm_u.putack.ibpam_src_cookie = rxmsg->ibm_u.putreq.ibprm_cookie;
-		txmsg->ibm_u.putack.ibpam_dst_cookie = tx->tx_cookie;
-
-		kiblnd_init_tx_msg(ni, tx, IBLND_MSG_PUT_ACK, nob);
-
-		tx->tx_lntmsg[0] = lntmsg;      /* finalise lntmsg on completion */
-		tx->tx_waiting = 1;	     /* waiting for PUT_DONE */
-		kiblnd_queue_tx(tx, conn);
-
-		/* reposted buffer reserved for PUT_DONE */
-		post_credit = IBLND_POSTRX_NO_CREDIT;
-		break;
-
-	case IBLND_MSG_GET_REQ:
-		if (lntmsg != NULL) {
-			/* Optimized GET; RDMA lntmsg's payload */
-			kiblnd_reply(ni, rx, lntmsg);
-		} else {
-			/* GET didn't match anything */
-			kiblnd_send_completion(rx->rx_conn, IBLND_MSG_GET_DONE,
-					       -ENODATA,
-					       rxmsg->ibm_u.get.ibgm_cookie);
-		}
-		break;
-	}
-
-	kiblnd_post_rx(rx, post_credit);
-	return rc;
-}
-
-int
-kiblnd_thread_start(int (*fn)(void *arg), void *arg, char *name)
-{
-	struct task_struct *task = kthread_run(fn, arg, "%s", name);
-
-	if (IS_ERR(task))
-		return PTR_ERR(task);
-
-	atomic_inc(&kiblnd_data.kib_nthreads);
-	return 0;
-}
-
-static void
-kiblnd_thread_fini(void)
-{
-	atomic_dec(&kiblnd_data.kib_nthreads);
-}
-
-void
-kiblnd_peer_alive(kib_peer_t *peer)
-{
-	/* This is racy, but everyone's only writing cfs_time_current() */
-	peer->ibp_last_alive = cfs_time_current();
-	mb();
-}
-
-static void
-kiblnd_peer_notify(kib_peer_t *peer)
-{
-	int error = 0;
-	unsigned long last_alive = 0;
-	unsigned long flags;
-
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	if (list_empty(&peer->ibp_conns) &&
-	    peer->ibp_accepting == 0 &&
-	    peer->ibp_connecting == 0 &&
-	    peer->ibp_error != 0) {
-		error = peer->ibp_error;
-		peer->ibp_error = 0;
-
-		last_alive = peer->ibp_last_alive;
-	}
-
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	if (error != 0)
-		lnet_notify(peer->ibp_ni,
-			    peer->ibp_nid, 0, last_alive);
-}
-
-void
-kiblnd_close_conn_locked(kib_conn_t *conn, int error)
-{
-	/* This just does the immediate housekeeping.  'error' is zero for a
-	 * normal shutdown which can happen only after the connection has been
-	 * established.  If the connection is established, schedule the
-	 * connection to be finished off by the connd.  Otherwise the connd is
-	 * already dealing with it (either to set it up or tear it down).
-	 * Caller holds kib_global_lock exclusively in irq context */
-	kib_peer_t *peer = conn->ibc_peer;
-	kib_dev_t *dev;
-	unsigned long flags;
-
-	LASSERT(error != 0 || conn->ibc_state >= IBLND_CONN_ESTABLISHED);
-
-	if (error != 0 && conn->ibc_comms_error == 0)
-		conn->ibc_comms_error = error;
-
-	if (conn->ibc_state != IBLND_CONN_ESTABLISHED)
-		return; /* already being handled  */
-
-	if (error == 0 &&
-	    list_empty(&conn->ibc_tx_noops) &&
-	    list_empty(&conn->ibc_tx_queue) &&
-	    list_empty(&conn->ibc_tx_queue_rsrvd) &&
-	    list_empty(&conn->ibc_tx_queue_nocred) &&
-	    list_empty(&conn->ibc_active_txs)) {
-		CDEBUG(D_NET, "closing conn to %s\n",
-		       libcfs_nid2str(peer->ibp_nid));
-	} else {
-		CNETERR("Closing conn to %s: error %d%s%s%s%s%s\n",
-		       libcfs_nid2str(peer->ibp_nid), error,
-		       list_empty(&conn->ibc_tx_queue) ? "" : "(sending)",
-		       list_empty(&conn->ibc_tx_noops) ? "" : "(sending_noops)",
-		       list_empty(&conn->ibc_tx_queue_rsrvd) ? "" : "(sending_rsrvd)",
-		       list_empty(&conn->ibc_tx_queue_nocred) ? "" : "(sending_nocred)",
-		       list_empty(&conn->ibc_active_txs) ? "" : "(waiting)");
-	}
-
-	dev = ((kib_net_t *)peer->ibp_ni->ni_data)->ibn_dev;
-	list_del(&conn->ibc_list);
-	/* connd (see below) takes over ibc_list's ref */
-
-	if (list_empty(&peer->ibp_conns) &&    /* no more conns */
-	    kiblnd_peer_active(peer)) {	 /* still in peer table */
-		kiblnd_unlink_peer_locked(peer);
-
-		/* set/clear error on last conn */
-		peer->ibp_error = conn->ibc_comms_error;
-	}
-
-	kiblnd_set_conn_state(conn, IBLND_CONN_CLOSING);
-
-	if (error != 0 &&
-	    kiblnd_dev_can_failover(dev)) {
-		list_add_tail(&dev->ibd_fail_list,
-			      &kiblnd_data.kib_failed_devs);
-		wake_up(&kiblnd_data.kib_failover_waitq);
-	}
-
-	spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags);
-
-	list_add_tail(&conn->ibc_list, &kiblnd_data.kib_connd_conns);
-	wake_up(&kiblnd_data.kib_connd_waitq);
-
-	spin_unlock_irqrestore(&kiblnd_data.kib_connd_lock, flags);
-}
-
-void
-kiblnd_close_conn(kib_conn_t *conn, int error)
-{
-	unsigned long flags;
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	kiblnd_close_conn_locked(conn, error);
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-}
-
-static void
-kiblnd_handle_early_rxs(kib_conn_t *conn)
-{
-	unsigned long flags;
-	kib_rx_t *rx;
-	kib_rx_t *tmp;
-
-	LASSERT(!in_interrupt());
-	LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	list_for_each_entry_safe(rx, tmp, &conn->ibc_early_rxs, rx_list) {
-		list_del(&rx->rx_list);
-		write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-		kiblnd_handle_rx(rx);
-
-		write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	}
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-}
-
-static void
-kiblnd_abort_txs(kib_conn_t *conn, struct list_head *txs)
-{
-	LIST_HEAD(zombies);
-	struct list_head *tmp;
-	struct list_head *nxt;
-	kib_tx_t *tx;
-
-	spin_lock(&conn->ibc_lock);
-
-	list_for_each_safe(tmp, nxt, txs) {
-		tx = list_entry(tmp, kib_tx_t, tx_list);
-
-		if (txs == &conn->ibc_active_txs) {
-			LASSERT(!tx->tx_queued);
-			LASSERT(tx->tx_waiting ||
-				 tx->tx_sending != 0);
-		} else {
-			LASSERT(tx->tx_queued);
-		}
-
-		tx->tx_status = -ECONNABORTED;
-		tx->tx_waiting = 0;
-
-		if (tx->tx_sending == 0) {
-			tx->tx_queued = 0;
-			list_del(&tx->tx_list);
-			list_add(&tx->tx_list, &zombies);
-		}
-	}
-
-	spin_unlock(&conn->ibc_lock);
-
-	kiblnd_txlist_done(conn->ibc_peer->ibp_ni, &zombies, -ECONNABORTED);
-}
-
-static void
-kiblnd_finalise_conn(kib_conn_t *conn)
-{
-	LASSERT(!in_interrupt());
-	LASSERT(conn->ibc_state > IBLND_CONN_INIT);
-
-	kiblnd_set_conn_state(conn, IBLND_CONN_DISCONNECTED);
-
-	/* abort_receives moves QP state to IB_QPS_ERR.  This is only required
-	 * for connections that didn't get as far as being connected, because
-	 * rdma_disconnect() does this for free. */
-	kiblnd_abort_receives(conn);
-
-	/* Complete all tx descs not waiting for sends to complete.
-	 * NB we should be safe from RDMA now that the QP has changed state */
-
-	kiblnd_abort_txs(conn, &conn->ibc_tx_noops);
-	kiblnd_abort_txs(conn, &conn->ibc_tx_queue);
-	kiblnd_abort_txs(conn, &conn->ibc_tx_queue_rsrvd);
-	kiblnd_abort_txs(conn, &conn->ibc_tx_queue_nocred);
-	kiblnd_abort_txs(conn, &conn->ibc_active_txs);
-
-	kiblnd_handle_early_rxs(conn);
-}
-
-void
-kiblnd_peer_connect_failed(kib_peer_t *peer, int active, int error)
-{
-	LIST_HEAD(zombies);
-	unsigned long flags;
-
-	LASSERT(error != 0);
-	LASSERT(!in_interrupt());
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	if (active) {
-		LASSERT(peer->ibp_connecting > 0);
-		peer->ibp_connecting--;
-	} else {
-		LASSERT(peer->ibp_accepting > 0);
-		peer->ibp_accepting--;
-	}
-
-	if (peer->ibp_connecting != 0 ||
-	    peer->ibp_accepting != 0) {
-		/* another connection attempt under way... */
-		write_unlock_irqrestore(&kiblnd_data.kib_global_lock,
-					    flags);
-		return;
-	}
-
-	if (list_empty(&peer->ibp_conns)) {
-		/* Take peer's blocked transmits to complete with error */
-		list_add(&zombies, &peer->ibp_tx_queue);
-		list_del_init(&peer->ibp_tx_queue);
-
-		if (kiblnd_peer_active(peer))
-			kiblnd_unlink_peer_locked(peer);
-
-		peer->ibp_error = error;
-	} else {
-		/* Can't have blocked transmits if there are connections */
-		LASSERT(list_empty(&peer->ibp_tx_queue));
-	}
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	kiblnd_peer_notify(peer);
-
-	if (list_empty(&zombies))
-		return;
-
-	CNETERR("Deleting messages for %s: connection failed\n",
-		libcfs_nid2str(peer->ibp_nid));
-
-	kiblnd_txlist_done(peer->ibp_ni, &zombies, -EHOSTUNREACH);
-}
-
-void
-kiblnd_connreq_done(kib_conn_t *conn, int status)
-{
-	kib_peer_t *peer = conn->ibc_peer;
-	kib_tx_t *tx;
-	kib_tx_t *tmp;
-	struct list_head txs;
-	unsigned long flags;
-	int active;
-
-	active = (conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT);
-
-	CDEBUG(D_NET, "%s: active(%d), version(%x), status(%d)\n",
-	       libcfs_nid2str(peer->ibp_nid), active,
-	       conn->ibc_version, status);
-
-	LASSERT(!in_interrupt());
-	LASSERT((conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT &&
-		  peer->ibp_connecting > 0) ||
-		 (conn->ibc_state == IBLND_CONN_PASSIVE_WAIT &&
-		  peer->ibp_accepting > 0));
-
-	LIBCFS_FREE(conn->ibc_connvars, sizeof(*conn->ibc_connvars));
-	conn->ibc_connvars = NULL;
-
-	if (status != 0) {
-		/* failed to establish connection */
-		kiblnd_peer_connect_failed(peer, active, status);
-		kiblnd_finalise_conn(conn);
-		return;
-	}
-
-	/* connection established */
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	conn->ibc_last_send = jiffies;
-	kiblnd_set_conn_state(conn, IBLND_CONN_ESTABLISHED);
-	kiblnd_peer_alive(peer);
-
-	/* Add conn to peer's list and nuke any dangling conns from a different
-	 * peer instance... */
-	kiblnd_conn_addref(conn);	       /* +1 ref for ibc_list */
-	list_add(&conn->ibc_list, &peer->ibp_conns);
-	if (active)
-		peer->ibp_connecting--;
-	else
-		peer->ibp_accepting--;
-
-	if (peer->ibp_version == 0) {
-		peer->ibp_version     = conn->ibc_version;
-		peer->ibp_incarnation = conn->ibc_incarnation;
-	}
-
-	if (peer->ibp_version     != conn->ibc_version ||
-	    peer->ibp_incarnation != conn->ibc_incarnation) {
-		kiblnd_close_stale_conns_locked(peer, conn->ibc_version,
-						conn->ibc_incarnation);
-		peer->ibp_version     = conn->ibc_version;
-		peer->ibp_incarnation = conn->ibc_incarnation;
-	}
-
-	/* grab pending txs while I have the lock */
-	list_add(&txs, &peer->ibp_tx_queue);
-	list_del_init(&peer->ibp_tx_queue);
-
-	if (!kiblnd_peer_active(peer) ||	/* peer has been deleted */
-	    conn->ibc_comms_error != 0) {       /* error has happened already */
-		lnet_ni_t *ni = peer->ibp_ni;
-
-		/* start to shut down connection */
-		kiblnd_close_conn_locked(conn, -ECONNABORTED);
-		write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-		kiblnd_txlist_done(ni, &txs, -ECONNABORTED);
-
-		return;
-	}
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	/* Schedule blocked txs */
-	spin_lock(&conn->ibc_lock);
-	list_for_each_entry_safe(tx, tmp, &txs, tx_list) {
-		list_del(&tx->tx_list);
-
-		kiblnd_queue_tx_locked(tx, conn);
-	}
-	spin_unlock(&conn->ibc_lock);
-
-	kiblnd_check_sends(conn);
-
-	/* schedule blocked rxs */
-	kiblnd_handle_early_rxs(conn);
-}
-
-static void
-kiblnd_reject(struct rdma_cm_id *cmid, kib_rej_t *rej)
-{
-	int rc;
-
-	rc = rdma_reject(cmid, rej, sizeof(*rej));
-
-	if (rc != 0)
-		CWARN("Error %d sending reject\n", rc);
-}
-
-static int
-kiblnd_passive_connect(struct rdma_cm_id *cmid, void *priv, int priv_nob)
-{
-	rwlock_t *g_lock = &kiblnd_data.kib_global_lock;
-	kib_msg_t *reqmsg = priv;
-	kib_msg_t *ackmsg;
-	kib_dev_t *ibdev;
-	kib_peer_t *peer;
-	kib_peer_t *peer2;
-	kib_conn_t *conn;
-	lnet_ni_t *ni  = NULL;
-	kib_net_t *net = NULL;
-	lnet_nid_t nid;
-	struct rdma_conn_param cp;
-	kib_rej_t rej;
-	int version = IBLND_MSG_VERSION;
-	unsigned long flags;
-	int rc;
-	struct sockaddr_in *peer_addr;
-	LASSERT(!in_interrupt());
-
-	/* cmid inherits 'context' from the corresponding listener id */
-	ibdev = (kib_dev_t *)cmid->context;
-	LASSERT(ibdev != NULL);
-
-	memset(&rej, 0, sizeof(rej));
-	rej.ibr_magic = IBLND_MSG_MAGIC;
-	rej.ibr_why = IBLND_REJECT_FATAL;
-	rej.ibr_cp.ibcp_max_msg_size = IBLND_MSG_SIZE;
-
-	peer_addr = (struct sockaddr_in *)&(cmid->route.addr.dst_addr);
-	if (*kiblnd_tunables.kib_require_priv_port &&
-	    ntohs(peer_addr->sin_port) >= PROT_SOCK) {
-		__u32 ip = ntohl(peer_addr->sin_addr.s_addr);
-		CERROR("Peer's port (%pI4h:%hu) is not privileged\n",
-		       &ip, ntohs(peer_addr->sin_port));
-		goto failed;
-	}
-
-	if (priv_nob < offsetof(kib_msg_t, ibm_type)) {
-		CERROR("Short connection request\n");
-		goto failed;
-	}
-
-	/* Future protocol version compatibility support!  If the
-	 * o2iblnd-specific protocol changes, or when LNET unifies
-	 * protocols over all LNDs, the initial connection will
-	 * negotiate a protocol version.  I trap this here to avoid
-	 * console errors; the reject tells the peer which protocol I
-	 * speak. */
-	if (reqmsg->ibm_magic == LNET_PROTO_MAGIC ||
-	    reqmsg->ibm_magic == __swab32(LNET_PROTO_MAGIC))
-		goto failed;
-	if (reqmsg->ibm_magic == IBLND_MSG_MAGIC &&
-	    reqmsg->ibm_version != IBLND_MSG_VERSION &&
-	    reqmsg->ibm_version != IBLND_MSG_VERSION_1)
-		goto failed;
-	if (reqmsg->ibm_magic == __swab32(IBLND_MSG_MAGIC) &&
-	    reqmsg->ibm_version != __swab16(IBLND_MSG_VERSION) &&
-	    reqmsg->ibm_version != __swab16(IBLND_MSG_VERSION_1))
-		goto failed;
-
-	rc = kiblnd_unpack_msg(reqmsg, priv_nob);
-	if (rc != 0) {
-		CERROR("Can't parse connection request: %d\n", rc);
-		goto failed;
-	}
-
-	nid = reqmsg->ibm_srcnid;
-	ni = lnet_net2ni(LNET_NIDNET(reqmsg->ibm_dstnid));
-
-	if (ni != NULL) {
-		net = (kib_net_t *)ni->ni_data;
-		rej.ibr_incarnation = net->ibn_incarnation;
-	}
-
-	if (ni == NULL ||			 /* no matching net */
-	    ni->ni_nid != reqmsg->ibm_dstnid ||   /* right NET, wrong NID! */
-	    net->ibn_dev != ibdev) {	      /* wrong device */
-		CERROR("Can't accept %s on %s (%s:%d:%pI4h): bad dst nid %s\n",
-		       libcfs_nid2str(nid),
-		       ni == NULL ? "NA" : libcfs_nid2str(ni->ni_nid),
-		       ibdev->ibd_ifname, ibdev->ibd_nnets,
-		       &ibdev->ibd_ifip,
-		       libcfs_nid2str(reqmsg->ibm_dstnid));
-
-		goto failed;
-	}
-
-       /* check time stamp as soon as possible */
-	if (reqmsg->ibm_dststamp != 0 &&
-	    reqmsg->ibm_dststamp != net->ibn_incarnation) {
-		CWARN("Stale connection request\n");
-		rej.ibr_why = IBLND_REJECT_CONN_STALE;
-		goto failed;
-	}
-
-	/* I can accept peer's version */
-	version = reqmsg->ibm_version;
-
-	if (reqmsg->ibm_type != IBLND_MSG_CONNREQ) {
-		CERROR("Unexpected connreq msg type: %x from %s\n",
-		       reqmsg->ibm_type, libcfs_nid2str(nid));
-		goto failed;
-	}
-
-	if (reqmsg->ibm_u.connparams.ibcp_queue_depth !=
-	    IBLND_MSG_QUEUE_SIZE(version)) {
-		CERROR("Can't accept %s: incompatible queue depth %d (%d wanted)\n",
-		       libcfs_nid2str(nid), reqmsg->ibm_u.connparams.ibcp_queue_depth,
-		       IBLND_MSG_QUEUE_SIZE(version));
-
-		if (version == IBLND_MSG_VERSION)
-			rej.ibr_why = IBLND_REJECT_MSG_QUEUE_SIZE;
-
-		goto failed;
-	}
-
-	if (reqmsg->ibm_u.connparams.ibcp_max_frags !=
-	    IBLND_RDMA_FRAGS(version)) {
-		CERROR("Can't accept %s(version %x): incompatible max_frags %d (%d wanted)\n",
-		       libcfs_nid2str(nid), version,
-		       reqmsg->ibm_u.connparams.ibcp_max_frags,
-		       IBLND_RDMA_FRAGS(version));
-
-		if (version == IBLND_MSG_VERSION)
-			rej.ibr_why = IBLND_REJECT_RDMA_FRAGS;
-
-		goto failed;
-
-	}
-
-	if (reqmsg->ibm_u.connparams.ibcp_max_msg_size > IBLND_MSG_SIZE) {
-		CERROR("Can't accept %s: message size %d too big (%d max)\n",
-		       libcfs_nid2str(nid),
-		       reqmsg->ibm_u.connparams.ibcp_max_msg_size,
-		       IBLND_MSG_SIZE);
-		goto failed;
-	}
-
-	/* assume 'nid' is a new peer; create  */
-	rc = kiblnd_create_peer(ni, &peer, nid);
-	if (rc != 0) {
-		CERROR("Can't create peer for %s\n", libcfs_nid2str(nid));
-		rej.ibr_why = IBLND_REJECT_NO_RESOURCES;
-		goto failed;
-	}
-
-	write_lock_irqsave(g_lock, flags);
-
-	peer2 = kiblnd_find_peer_locked(nid);
-	if (peer2 != NULL) {
-		if (peer2->ibp_version == 0) {
-			peer2->ibp_version     = version;
-			peer2->ibp_incarnation = reqmsg->ibm_srcstamp;
-		}
-
-		/* not the guy I've talked with */
-		if (peer2->ibp_incarnation != reqmsg->ibm_srcstamp ||
-		    peer2->ibp_version     != version) {
-			kiblnd_close_peer_conns_locked(peer2, -ESTALE);
-			write_unlock_irqrestore(g_lock, flags);
-
-			CWARN("Conn stale %s [old ver: %x, new ver: %x]\n",
-			      libcfs_nid2str(nid), peer2->ibp_version, version);
-
-			kiblnd_peer_decref(peer);
-			rej.ibr_why = IBLND_REJECT_CONN_STALE;
-			goto failed;
-		}
-
-		/* tie-break connection race in favour of the higher NID */
-		if (peer2->ibp_connecting != 0 &&
-		    nid < ni->ni_nid) {
-			write_unlock_irqrestore(g_lock, flags);
-
-			CWARN("Conn race %s\n", libcfs_nid2str(peer2->ibp_nid));
-
-			kiblnd_peer_decref(peer);
-			rej.ibr_why = IBLND_REJECT_CONN_RACE;
-			goto failed;
-		}
-
-		peer2->ibp_accepting++;
-		kiblnd_peer_addref(peer2);
-
-		write_unlock_irqrestore(g_lock, flags);
-		kiblnd_peer_decref(peer);
-		peer = peer2;
-	} else {
-		/* Brand new peer */
-		LASSERT(peer->ibp_accepting == 0);
-		LASSERT(peer->ibp_version == 0 &&
-			 peer->ibp_incarnation == 0);
-
-		peer->ibp_accepting   = 1;
-		peer->ibp_version     = version;
-		peer->ibp_incarnation = reqmsg->ibm_srcstamp;
-
-		/* I have a ref on ni that prevents it being shutdown */
-		LASSERT(net->ibn_shutdown == 0);
-
-		kiblnd_peer_addref(peer);
-		list_add_tail(&peer->ibp_list, kiblnd_nid2peerlist(nid));
-
-		write_unlock_irqrestore(g_lock, flags);
-	}
-
-	conn = kiblnd_create_conn(peer, cmid, IBLND_CONN_PASSIVE_WAIT, version);
-	if (conn == NULL) {
-		kiblnd_peer_connect_failed(peer, 0, -ENOMEM);
-		kiblnd_peer_decref(peer);
-		rej.ibr_why = IBLND_REJECT_NO_RESOURCES;
-		goto failed;
-	}
-
-	/* conn now "owns" cmid, so I return success from here on to ensure the
-	 * CM callback doesn't destroy cmid. */
-
-	conn->ibc_incarnation      = reqmsg->ibm_srcstamp;
-	conn->ibc_credits          = IBLND_MSG_QUEUE_SIZE(version);
-	conn->ibc_reserved_credits = IBLND_MSG_QUEUE_SIZE(version);
-	LASSERT(conn->ibc_credits + conn->ibc_reserved_credits + IBLND_OOB_MSGS(version)
-		 <= IBLND_RX_MSGS(version));
-
-	ackmsg = &conn->ibc_connvars->cv_msg;
-	memset(ackmsg, 0, sizeof(*ackmsg));
-
-	kiblnd_init_msg(ackmsg, IBLND_MSG_CONNACK,
-			sizeof(ackmsg->ibm_u.connparams));
-	ackmsg->ibm_u.connparams.ibcp_queue_depth  = IBLND_MSG_QUEUE_SIZE(version);
-	ackmsg->ibm_u.connparams.ibcp_max_msg_size = IBLND_MSG_SIZE;
-	ackmsg->ibm_u.connparams.ibcp_max_frags    = IBLND_RDMA_FRAGS(version);
-
-	kiblnd_pack_msg(ni, ackmsg, version, 0, nid, reqmsg->ibm_srcstamp);
-
-	memset(&cp, 0, sizeof(cp));
-	cp.private_data	= ackmsg;
-	cp.private_data_len = ackmsg->ibm_nob;
-	cp.responder_resources = 0;	     /* No atomic ops or RDMA reads */
-	cp.initiator_depth = 0;
-	cp.flow_control	= 1;
-	cp.retry_count = *kiblnd_tunables.kib_retry_count;
-	cp.rnr_retry_count = *kiblnd_tunables.kib_rnr_retry_count;
-
-	CDEBUG(D_NET, "Accept %s\n", libcfs_nid2str(nid));
-
-	rc = rdma_accept(cmid, &cp);
-	if (rc != 0) {
-		CERROR("Can't accept %s: %d\n", libcfs_nid2str(nid), rc);
-		rej.ibr_version = version;
-		rej.ibr_why     = IBLND_REJECT_FATAL;
-
-		kiblnd_reject(cmid, &rej);
-		kiblnd_connreq_done(conn, rc);
-		kiblnd_conn_decref(conn);
-	}
-
-	lnet_ni_decref(ni);
-	return 0;
-
- failed:
-	if (ni != NULL)
-		lnet_ni_decref(ni);
-
-	rej.ibr_version             = version;
-	rej.ibr_cp.ibcp_queue_depth = IBLND_MSG_QUEUE_SIZE(version);
-	rej.ibr_cp.ibcp_max_frags   = IBLND_RDMA_FRAGS(version);
-	kiblnd_reject(cmid, &rej);
-
-	return -ECONNREFUSED;
-}
-
-static void
-kiblnd_reconnect(kib_conn_t *conn, int version,
-		  __u64 incarnation, int why, kib_connparams_t *cp)
-{
-	kib_peer_t *peer = conn->ibc_peer;
-	char *reason;
-	int retry = 0;
-	unsigned long flags;
-
-	LASSERT(conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT);
-	LASSERT(peer->ibp_connecting > 0);     /* 'conn' at least */
-
-	write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	/* retry connection if it's still needed and no other connection
-	 * attempts (active or passive) are in progress
-	 * NB: reconnect is still needed even when ibp_tx_queue is
-	 * empty if ibp_version != version because reconnect may be
-	 * initiated by kiblnd_query() */
-	if ((!list_empty(&peer->ibp_tx_queue) ||
-	     peer->ibp_version != version) &&
-	    peer->ibp_connecting == 1 &&
-	    peer->ibp_accepting == 0) {
-		retry = 1;
-		peer->ibp_connecting++;
-
-		peer->ibp_version     = version;
-		peer->ibp_incarnation = incarnation;
-	}
-
-	write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	if (!retry)
-		return;
-
-	switch (why) {
-	default:
-		reason = "Unknown";
-		break;
-
-	case IBLND_REJECT_CONN_STALE:
-		reason = "stale";
-		break;
-
-	case IBLND_REJECT_CONN_RACE:
-		reason = "conn race";
-		break;
-
-	case IBLND_REJECT_CONN_UNCOMPAT:
-		reason = "version negotiation";
-		break;
-	}
-
-	CNETERR("%s: retrying (%s), %x, %x, queue_dep: %d, max_frag: %d, msg_size: %d\n",
-		libcfs_nid2str(peer->ibp_nid),
-		reason, IBLND_MSG_VERSION, version,
-		cp != NULL ? cp->ibcp_queue_depth  : IBLND_MSG_QUEUE_SIZE(version),
-		cp != NULL ? cp->ibcp_max_frags    : IBLND_RDMA_FRAGS(version),
-		cp != NULL ? cp->ibcp_max_msg_size : IBLND_MSG_SIZE);
-
-	kiblnd_connect_peer(peer);
-}
-
-static void
-kiblnd_rejected(kib_conn_t *conn, int reason, void *priv, int priv_nob)
-{
-	kib_peer_t *peer = conn->ibc_peer;
-
-	LASSERT(!in_interrupt());
-	LASSERT(conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT);
-
-	switch (reason) {
-	case IB_CM_REJ_STALE_CONN:
-		kiblnd_reconnect(conn, IBLND_MSG_VERSION, 0,
-				 IBLND_REJECT_CONN_STALE, NULL);
-		break;
-
-	case IB_CM_REJ_INVALID_SERVICE_ID:
-		CNETERR("%s rejected: no listener at %d\n",
-			libcfs_nid2str(peer->ibp_nid),
-			*kiblnd_tunables.kib_service);
-		break;
-
-	case IB_CM_REJ_CONSUMER_DEFINED:
-		if (priv_nob >= offsetof(kib_rej_t, ibr_padding)) {
-			kib_rej_t *rej = priv;
-			kib_connparams_t *cp = NULL;
-			int flip = 0;
-			__u64 incarnation = -1;
-
-			/* NB. default incarnation is -1 because:
-			 * a) V1 will ignore dst incarnation in connreq.
-			 * b) V2 will provide incarnation while rejecting me,
-			 *    -1 will be overwrote.
-			 *
-			 * if I try to connect to a V1 peer with V2 protocol,
-			 * it rejected me then upgrade to V2, I have no idea
-			 * about the upgrading and try to reconnect with V1,
-			 * in this case upgraded V2 can find out I'm trying to
-			 * talk to the old guy and reject me(incarnation is -1).
-			 */
-
-			if (rej->ibr_magic == __swab32(IBLND_MSG_MAGIC) ||
-			    rej->ibr_magic == __swab32(LNET_PROTO_MAGIC)) {
-				__swab32s(&rej->ibr_magic);
-				__swab16s(&rej->ibr_version);
-				flip = 1;
-			}
-
-			if (priv_nob >= sizeof(kib_rej_t) &&
-			    rej->ibr_version > IBLND_MSG_VERSION_1) {
-				/* priv_nob is always 148 in current version
-				 * of OFED, so we still need to check version.
-				 * (define of IB_CM_REJ_PRIVATE_DATA_SIZE) */
-				cp = &rej->ibr_cp;
-
-				if (flip) {
-					__swab64s(&rej->ibr_incarnation);
-					__swab16s(&cp->ibcp_queue_depth);
-					__swab16s(&cp->ibcp_max_frags);
-					__swab32s(&cp->ibcp_max_msg_size);
-				}
-
-				incarnation = rej->ibr_incarnation;
-			}
-
-			if (rej->ibr_magic != IBLND_MSG_MAGIC &&
-			    rej->ibr_magic != LNET_PROTO_MAGIC) {
-				CERROR("%s rejected: consumer defined fatal error\n",
-				       libcfs_nid2str(peer->ibp_nid));
-				break;
-			}
-
-			if (rej->ibr_version != IBLND_MSG_VERSION &&
-			    rej->ibr_version != IBLND_MSG_VERSION_1) {
-				CERROR("%s rejected: o2iblnd version %x error\n",
-				       libcfs_nid2str(peer->ibp_nid),
-				       rej->ibr_version);
-				break;
-			}
-
-			if (rej->ibr_why     == IBLND_REJECT_FATAL &&
-			    rej->ibr_version == IBLND_MSG_VERSION_1) {
-				CDEBUG(D_NET, "rejected by old version peer %s: %x\n",
-				       libcfs_nid2str(peer->ibp_nid), rej->ibr_version);
-
-				if (conn->ibc_version != IBLND_MSG_VERSION_1)
-					rej->ibr_why = IBLND_REJECT_CONN_UNCOMPAT;
-			}
-
-			switch (rej->ibr_why) {
-			case IBLND_REJECT_CONN_RACE:
-			case IBLND_REJECT_CONN_STALE:
-			case IBLND_REJECT_CONN_UNCOMPAT:
-				kiblnd_reconnect(conn, rej->ibr_version,
-						 incarnation, rej->ibr_why, cp);
-				break;
-
-			case IBLND_REJECT_MSG_QUEUE_SIZE:
-				CERROR("%s rejected: incompatible message queue depth %d, %d\n",
-				       libcfs_nid2str(peer->ibp_nid),
-				       cp != NULL ? cp->ibcp_queue_depth :
-				       IBLND_MSG_QUEUE_SIZE(rej->ibr_version),
-				       IBLND_MSG_QUEUE_SIZE(conn->ibc_version));
-				break;
-
-			case IBLND_REJECT_RDMA_FRAGS:
-				CERROR("%s rejected: incompatible # of RDMA fragments %d, %d\n",
-				       libcfs_nid2str(peer->ibp_nid),
-				       cp != NULL ? cp->ibcp_max_frags :
-				       IBLND_RDMA_FRAGS(rej->ibr_version),
-				       IBLND_RDMA_FRAGS(conn->ibc_version));
-				break;
-
-			case IBLND_REJECT_NO_RESOURCES:
-				CERROR("%s rejected: o2iblnd no resources\n",
-				       libcfs_nid2str(peer->ibp_nid));
-				break;
-
-			case IBLND_REJECT_FATAL:
-				CERROR("%s rejected: o2iblnd fatal error\n",
-				       libcfs_nid2str(peer->ibp_nid));
-				break;
-
-			default:
-				CERROR("%s rejected: o2iblnd reason %d\n",
-				       libcfs_nid2str(peer->ibp_nid),
-				       rej->ibr_why);
-				break;
-			}
-			break;
-		}
-		/* fall through */
-	default:
-		CNETERR("%s rejected: reason %d, size %d\n",
-			libcfs_nid2str(peer->ibp_nid), reason, priv_nob);
-		break;
-	}
-
-	kiblnd_connreq_done(conn, -ECONNREFUSED);
-}
-
-static void
-kiblnd_check_connreply(kib_conn_t *conn, void *priv, int priv_nob)
-{
-	kib_peer_t *peer = conn->ibc_peer;
-	lnet_ni_t *ni = peer->ibp_ni;
-	kib_net_t *net = ni->ni_data;
-	kib_msg_t *msg = priv;
-	int ver = conn->ibc_version;
-	int rc = kiblnd_unpack_msg(msg, priv_nob);
-	unsigned long flags;
-
-	LASSERT(net != NULL);
-
-	if (rc != 0) {
-		CERROR("Can't unpack connack from %s: %d\n",
-		       libcfs_nid2str(peer->ibp_nid), rc);
-		goto failed;
-	}
-
-	if (msg->ibm_type != IBLND_MSG_CONNACK) {
-		CERROR("Unexpected message %d from %s\n",
-		       msg->ibm_type, libcfs_nid2str(peer->ibp_nid));
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	if (ver != msg->ibm_version) {
-		CERROR("%s replied version %x is different with requested version %x\n",
-		       libcfs_nid2str(peer->ibp_nid), msg->ibm_version, ver);
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	if (msg->ibm_u.connparams.ibcp_queue_depth !=
-	    IBLND_MSG_QUEUE_SIZE(ver)) {
-		CERROR("%s has incompatible queue depth %d(%d wanted)\n",
-		       libcfs_nid2str(peer->ibp_nid),
-		       msg->ibm_u.connparams.ibcp_queue_depth,
-		       IBLND_MSG_QUEUE_SIZE(ver));
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	if (msg->ibm_u.connparams.ibcp_max_frags !=
-	    IBLND_RDMA_FRAGS(ver)) {
-		CERROR("%s has incompatible max_frags %d (%d wanted)\n",
-		       libcfs_nid2str(peer->ibp_nid),
-		       msg->ibm_u.connparams.ibcp_max_frags,
-		       IBLND_RDMA_FRAGS(ver));
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	if (msg->ibm_u.connparams.ibcp_max_msg_size > IBLND_MSG_SIZE) {
-		CERROR("%s max message size %d too big (%d max)\n",
-		       libcfs_nid2str(peer->ibp_nid),
-		       msg->ibm_u.connparams.ibcp_max_msg_size,
-		       IBLND_MSG_SIZE);
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-	if (msg->ibm_dstnid == ni->ni_nid &&
-	    msg->ibm_dststamp == net->ibn_incarnation)
-		rc = 0;
-	else
-		rc = -ESTALE;
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	if (rc != 0) {
-		CERROR("Bad connection reply from %s, rc = %d, version: %x max_frags: %d\n",
-		       libcfs_nid2str(peer->ibp_nid), rc,
-		       msg->ibm_version, msg->ibm_u.connparams.ibcp_max_frags);
-		goto failed;
-	}
-
-	conn->ibc_incarnation = msg->ibm_srcstamp;
-	conn->ibc_credits =
-	conn->ibc_reserved_credits = IBLND_MSG_QUEUE_SIZE(ver);
-	LASSERT(conn->ibc_credits + conn->ibc_reserved_credits + IBLND_OOB_MSGS(ver)
-		 <= IBLND_RX_MSGS(ver));
-
-	kiblnd_connreq_done(conn, 0);
-	return;
-
- failed:
-	/* NB My QP has already established itself, so I handle anything going
-	 * wrong here by setting ibc_comms_error.
-	 * kiblnd_connreq_done(0) moves the conn state to ESTABLISHED, but then
-	 * immediately tears it down. */
-
-	LASSERT(rc != 0);
-	conn->ibc_comms_error = rc;
-	kiblnd_connreq_done(conn, 0);
-}
-
-static int
-kiblnd_active_connect(struct rdma_cm_id *cmid)
-{
-	kib_peer_t *peer = (kib_peer_t *)cmid->context;
-	kib_conn_t *conn;
-	kib_msg_t *msg;
-	struct rdma_conn_param cp;
-	int version;
-	__u64 incarnation;
-	unsigned long flags;
-	int rc;
-
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	incarnation = peer->ibp_incarnation;
-	version = (peer->ibp_version == 0) ? IBLND_MSG_VERSION :
-					     peer->ibp_version;
-
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	conn = kiblnd_create_conn(peer, cmid, IBLND_CONN_ACTIVE_CONNECT, version);
-	if (conn == NULL) {
-		kiblnd_peer_connect_failed(peer, 1, -ENOMEM);
-		kiblnd_peer_decref(peer); /* lose cmid's ref */
-		return -ENOMEM;
-	}
-
-	/* conn "owns" cmid now, so I return success from here on to ensure the
-	 * CM callback doesn't destroy cmid. conn also takes over cmid's ref
-	 * on peer */
-
-	msg = &conn->ibc_connvars->cv_msg;
-
-	memset(msg, 0, sizeof(*msg));
-	kiblnd_init_msg(msg, IBLND_MSG_CONNREQ, sizeof(msg->ibm_u.connparams));
-	msg->ibm_u.connparams.ibcp_queue_depth  = IBLND_MSG_QUEUE_SIZE(version);
-	msg->ibm_u.connparams.ibcp_max_frags    = IBLND_RDMA_FRAGS(version);
-	msg->ibm_u.connparams.ibcp_max_msg_size = IBLND_MSG_SIZE;
-
-	kiblnd_pack_msg(peer->ibp_ni, msg, version,
-			0, peer->ibp_nid, incarnation);
-
-	memset(&cp, 0, sizeof(cp));
-	cp.private_data	= msg;
-	cp.private_data_len    = msg->ibm_nob;
-	cp.responder_resources = 0;	     /* No atomic ops or RDMA reads */
-	cp.initiator_depth     = 0;
-	cp.flow_control        = 1;
-	cp.retry_count         = *kiblnd_tunables.kib_retry_count;
-	cp.rnr_retry_count     = *kiblnd_tunables.kib_rnr_retry_count;
-
-	LASSERT(cmid->context == (void *)conn);
-	LASSERT(conn->ibc_cmid == cmid);
-
-	rc = rdma_connect(cmid, &cp);
-	if (rc != 0) {
-		CERROR("Can't connect to %s: %d\n",
-		       libcfs_nid2str(peer->ibp_nid), rc);
-		kiblnd_connreq_done(conn, rc);
-		kiblnd_conn_decref(conn);
-	}
-
-	return 0;
-}
-
-int
-kiblnd_cm_callback(struct rdma_cm_id *cmid, struct rdma_cm_event *event)
-{
-	kib_peer_t *peer;
-	kib_conn_t *conn;
-	int rc;
-
-	switch (event->event) {
-	default:
-		CERROR("Unexpected event: %d, status: %d\n",
-		       event->event, event->status);
-		LBUG();
-
-	case RDMA_CM_EVENT_CONNECT_REQUEST:
-		/* destroy cmid on failure */
-		rc = kiblnd_passive_connect(cmid,
-					    (void *)KIBLND_CONN_PARAM(event),
-					    KIBLND_CONN_PARAM_LEN(event));
-		CDEBUG(D_NET, "connreq: %d\n", rc);
-		return rc;
-
-	case RDMA_CM_EVENT_ADDR_ERROR:
-		peer = (kib_peer_t *)cmid->context;
-		CNETERR("%s: ADDR ERROR %d\n",
-		       libcfs_nid2str(peer->ibp_nid), event->status);
-		kiblnd_peer_connect_failed(peer, 1, -EHOSTUNREACH);
-		kiblnd_peer_decref(peer);
-		return -EHOSTUNREACH;      /* rc != 0 destroys cmid */
-
-	case RDMA_CM_EVENT_ADDR_RESOLVED:
-		peer = (kib_peer_t *)cmid->context;
-
-		CDEBUG(D_NET, "%s Addr resolved: %d\n",
-		       libcfs_nid2str(peer->ibp_nid), event->status);
-
-		if (event->status != 0) {
-			CNETERR("Can't resolve address for %s: %d\n",
-				libcfs_nid2str(peer->ibp_nid), event->status);
-			rc = event->status;
-		} else {
-			rc = rdma_resolve_route(
-				cmid, *kiblnd_tunables.kib_timeout * 1000);
-			if (rc == 0)
-				return 0;
-			/* Can't initiate route resolution */
-			CERROR("Can't resolve route for %s: %d\n",
-			       libcfs_nid2str(peer->ibp_nid), rc);
-		}
-		kiblnd_peer_connect_failed(peer, 1, rc);
-		kiblnd_peer_decref(peer);
-		return rc;		      /* rc != 0 destroys cmid */
-
-	case RDMA_CM_EVENT_ROUTE_ERROR:
-		peer = (kib_peer_t *)cmid->context;
-		CNETERR("%s: ROUTE ERROR %d\n",
-			libcfs_nid2str(peer->ibp_nid), event->status);
-		kiblnd_peer_connect_failed(peer, 1, -EHOSTUNREACH);
-		kiblnd_peer_decref(peer);
-		return -EHOSTUNREACH;	   /* rc != 0 destroys cmid */
-
-	case RDMA_CM_EVENT_ROUTE_RESOLVED:
-		peer = (kib_peer_t *)cmid->context;
-		CDEBUG(D_NET, "%s Route resolved: %d\n",
-		       libcfs_nid2str(peer->ibp_nid), event->status);
-
-		if (event->status == 0)
-			return kiblnd_active_connect(cmid);
-
-		CNETERR("Can't resolve route for %s: %d\n",
-		       libcfs_nid2str(peer->ibp_nid), event->status);
-		kiblnd_peer_connect_failed(peer, 1, event->status);
-		kiblnd_peer_decref(peer);
-		return event->status;	   /* rc != 0 destroys cmid */
-
-	case RDMA_CM_EVENT_UNREACHABLE:
-		conn = (kib_conn_t *)cmid->context;
-		LASSERT(conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT ||
-			conn->ibc_state == IBLND_CONN_PASSIVE_WAIT);
-		CNETERR("%s: UNREACHABLE %d\n",
-		       libcfs_nid2str(conn->ibc_peer->ibp_nid), event->status);
-		kiblnd_connreq_done(conn, -ENETDOWN);
-		kiblnd_conn_decref(conn);
-		return 0;
-
-	case RDMA_CM_EVENT_CONNECT_ERROR:
-		conn = (kib_conn_t *)cmid->context;
-		LASSERT(conn->ibc_state == IBLND_CONN_ACTIVE_CONNECT ||
-			conn->ibc_state == IBLND_CONN_PASSIVE_WAIT);
-		CNETERR("%s: CONNECT ERROR %d\n",
-			libcfs_nid2str(conn->ibc_peer->ibp_nid), event->status);
-		kiblnd_connreq_done(conn, -ENOTCONN);
-		kiblnd_conn_decref(conn);
-		return 0;
-
-	case RDMA_CM_EVENT_REJECTED:
-		conn = (kib_conn_t *)cmid->context;
-		switch (conn->ibc_state) {
-		default:
-			LBUG();
-
-		case IBLND_CONN_PASSIVE_WAIT:
-			CERROR("%s: REJECTED %d\n",
-				libcfs_nid2str(conn->ibc_peer->ibp_nid),
-				event->status);
-			kiblnd_connreq_done(conn, -ECONNRESET);
-			break;
-
-		case IBLND_CONN_ACTIVE_CONNECT:
-			kiblnd_rejected(conn, event->status,
-					(void *)KIBLND_CONN_PARAM(event),
-					KIBLND_CONN_PARAM_LEN(event));
-			break;
-		}
-		kiblnd_conn_decref(conn);
-		return 0;
-
-	case RDMA_CM_EVENT_ESTABLISHED:
-		conn = (kib_conn_t *)cmid->context;
-		switch (conn->ibc_state) {
-		default:
-			LBUG();
-
-		case IBLND_CONN_PASSIVE_WAIT:
-			CDEBUG(D_NET, "ESTABLISHED (passive): %s\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-			kiblnd_connreq_done(conn, 0);
-			break;
-
-		case IBLND_CONN_ACTIVE_CONNECT:
-			CDEBUG(D_NET, "ESTABLISHED(active): %s\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-			kiblnd_check_connreply(conn,
-					       (void *)KIBLND_CONN_PARAM(event),
-					       KIBLND_CONN_PARAM_LEN(event));
-			break;
-		}
-		/* net keeps its ref on conn! */
-		return 0;
-
-	case RDMA_CM_EVENT_TIMEWAIT_EXIT:
-		CDEBUG(D_NET, "Ignore TIMEWAIT_EXIT event\n");
-		return 0;
-	case RDMA_CM_EVENT_DISCONNECTED:
-		conn = (kib_conn_t *)cmid->context;
-		if (conn->ibc_state < IBLND_CONN_ESTABLISHED) {
-			CERROR("%s DISCONNECTED\n",
-			       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-			kiblnd_connreq_done(conn, -ECONNRESET);
-		} else {
-			kiblnd_close_conn(conn, 0);
-		}
-		kiblnd_conn_decref(conn);
-		cmid->context = NULL;
-		return 0;
-
-	case RDMA_CM_EVENT_DEVICE_REMOVAL:
-		LCONSOLE_ERROR_MSG(0x131,
-				   "Received notification of device removal\n"
-				   "Please shutdown LNET to allow this to proceed\n");
-		/* Can't remove network from underneath LNET for now, so I have
-		 * to ignore this */
-		return 0;
-
-	case RDMA_CM_EVENT_ADDR_CHANGE:
-		LCONSOLE_INFO("Physical link changed (eg hca/port)\n");
-		return 0;
-	}
-}
-
-static int
-kiblnd_check_txs_locked(kib_conn_t *conn, struct list_head *txs)
-{
-	kib_tx_t *tx;
-	struct list_head *ttmp;
-
-	list_for_each(ttmp, txs) {
-		tx = list_entry(ttmp, kib_tx_t, tx_list);
-
-		if (txs != &conn->ibc_active_txs) {
-			LASSERT(tx->tx_queued);
-		} else {
-			LASSERT(!tx->tx_queued);
-			LASSERT(tx->tx_waiting || tx->tx_sending != 0);
-		}
-
-		if (cfs_time_aftereq(jiffies, tx->tx_deadline)) {
-			CERROR("Timed out tx: %s, %lu seconds\n",
-			       kiblnd_queue2str(conn, txs),
-			       cfs_duration_sec(jiffies - tx->tx_deadline));
-			return 1;
-		}
-	}
-
-	return 0;
-}
-
-static int
-kiblnd_conn_timed_out_locked(kib_conn_t *conn)
-{
-	return  kiblnd_check_txs_locked(conn, &conn->ibc_tx_queue) ||
-		kiblnd_check_txs_locked(conn, &conn->ibc_tx_noops) ||
-		kiblnd_check_txs_locked(conn, &conn->ibc_tx_queue_rsrvd) ||
-		kiblnd_check_txs_locked(conn, &conn->ibc_tx_queue_nocred) ||
-		kiblnd_check_txs_locked(conn, &conn->ibc_active_txs);
-}
-
-static void
-kiblnd_check_conns(int idx)
-{
-	LIST_HEAD(closes);
-	LIST_HEAD(checksends);
-	struct list_head *peers = &kiblnd_data.kib_peers[idx];
-	struct list_head *ptmp;
-	kib_peer_t *peer;
-	kib_conn_t *conn;
-	kib_conn_t *tmp;
-	struct list_head *ctmp;
-	unsigned long flags;
-
-	/* NB. We expect to have a look at all the peers and not find any
-	 * RDMAs to time out, so we just use a shared lock while we
-	 * take a look... */
-	read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
-
-	list_for_each(ptmp, peers) {
-		peer = list_entry(ptmp, kib_peer_t, ibp_list);
-
-		list_for_each(ctmp, &peer->ibp_conns) {
-			int timedout;
-			int sendnoop;
-
-			conn = list_entry(ctmp, kib_conn_t, ibc_list);
-
-			LASSERT(conn->ibc_state == IBLND_CONN_ESTABLISHED);
-
-			spin_lock(&conn->ibc_lock);
-
-			sendnoop = kiblnd_need_noop(conn);
-			timedout = kiblnd_conn_timed_out_locked(conn);
-			if (!sendnoop && !timedout) {
-				spin_unlock(&conn->ibc_lock);
-				continue;
-			}
-
-			if (timedout) {
-				CERROR("Timed out RDMA with %s (%lu): c: %u, oc: %u, rc: %u\n",
-				       libcfs_nid2str(peer->ibp_nid),
-				       cfs_duration_sec(cfs_time_current() -
-							peer->ibp_last_alive),
-				       conn->ibc_credits,
-				       conn->ibc_outstanding_credits,
-				       conn->ibc_reserved_credits);
-				list_add(&conn->ibc_connd_list, &closes);
-			} else {
-				list_add(&conn->ibc_connd_list,
-					     &checksends);
-			}
-			/* +ref for 'closes' or 'checksends' */
-			kiblnd_conn_addref(conn);
-
-			spin_unlock(&conn->ibc_lock);
-		}
-	}
-
-	read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
-	/* Handle timeout by closing the whole
-	 * connection. We can only be sure RDMA activity
-	 * has ceased once the QP has been modified. */
-	list_for_each_entry_safe(conn, tmp, &closes, ibc_connd_list) {
-		list_del(&conn->ibc_connd_list);
-		kiblnd_close_conn(conn, -ETIMEDOUT);
-		kiblnd_conn_decref(conn);
-	}
-
-	/* In case we have enough credits to return via a
-	 * NOOP, but there were no non-blocking tx descs
-	 * free to do it last time... */
-	while (!list_empty(&checksends)) {
-		conn = list_entry(checksends.next,
-				      kib_conn_t, ibc_connd_list);
-		list_del(&conn->ibc_connd_list);
-		kiblnd_check_sends(conn);
-		kiblnd_conn_decref(conn);
-	}
-}
-
-static void
-kiblnd_disconnect_conn(kib_conn_t *conn)
-{
-	LASSERT(!in_interrupt());
-	LASSERT(current == kiblnd_data.kib_connd);
-	LASSERT(conn->ibc_state == IBLND_CONN_CLOSING);
-
-	rdma_disconnect(conn->ibc_cmid);
-	kiblnd_finalise_conn(conn);
-
-	kiblnd_peer_notify(conn->ibc_peer);
-}
-
-int
-kiblnd_connd(void *arg)
-{
-	wait_queue_t wait;
-	unsigned long flags;
-	kib_conn_t *conn;
-	int timeout;
-	int i;
-	int dropped_lock;
-	int peer_index = 0;
-	unsigned long deadline = jiffies;
-
-	cfs_block_allsigs();
-
-	init_waitqueue_entry(&wait, current);
-	kiblnd_data.kib_connd = current;
-
-	spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags);
-
-	while (!kiblnd_data.kib_shutdown) {
-
-		dropped_lock = 0;
-
-		if (!list_empty(&kiblnd_data.kib_connd_zombies)) {
-			conn = list_entry(kiblnd_data.kib_connd_zombies.next,
-					      kib_conn_t, ibc_list);
-			list_del(&conn->ibc_list);
-
-			spin_unlock_irqrestore(&kiblnd_data.kib_connd_lock,
-					       flags);
-			dropped_lock = 1;
-
-			kiblnd_destroy_conn(conn);
-
-			spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags);
-		}
-
-		if (!list_empty(&kiblnd_data.kib_connd_conns)) {
-			conn = list_entry(kiblnd_data.kib_connd_conns.next,
-					      kib_conn_t, ibc_list);
-			list_del(&conn->ibc_list);
-
-			spin_unlock_irqrestore(&kiblnd_data.kib_connd_lock,
-					       flags);
-			dropped_lock = 1;
-
-			kiblnd_disconnect_conn(conn);
-			kiblnd_conn_decref(conn);
-
-			spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags);
-		}
-
-		/* careful with the jiffy wrap... */
-		timeout = (int)(deadline - jiffies);
-		if (timeout <= 0) {
-			const int n = 4;
-			const int p = 1;
-			int chunk = kiblnd_data.kib_peer_hash_size;
-
-			spin_unlock_irqrestore(&kiblnd_data.kib_connd_lock, flags);
-			dropped_lock = 1;
-
-			/* Time to check for RDMA timeouts on a few more
-			 * peers: I do checks every 'p' seconds on a
-			 * proportion of the peer table and I need to check
-			 * every connection 'n' times within a timeout
-			 * interval, to ensure I detect a timeout on any
-			 * connection within (n+1)/n times the timeout
-			 * interval. */
-
-			if (*kiblnd_tunables.kib_timeout > n * p)
-				chunk = (chunk * n * p) /
-					*kiblnd_tunables.kib_timeout;
-			if (chunk == 0)
-				chunk = 1;
-
-			for (i = 0; i < chunk; i++) {
-				kiblnd_check_conns(peer_index);
-				peer_index = (peer_index + 1) %
-					     kiblnd_data.kib_peer_hash_size;
-			}
-
-			deadline += p * HZ;
-			spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags);
-		}
-
-		if (dropped_lock)
-			continue;
-
-		/* Nothing to do for 'timeout'  */
-		set_current_state(TASK_INTERRUPTIBLE);
-		add_wait_queue(&kiblnd_data.kib_connd_waitq, &wait);
-		spin_unlock_irqrestore(&kiblnd_data.kib_connd_lock, flags);
-
-		schedule_timeout(timeout);
-
-		remove_wait_queue(&kiblnd_data.kib_connd_waitq, &wait);
-		spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags);
-	}
-
-	spin_unlock_irqrestore(&kiblnd_data.kib_connd_lock, flags);
-
-	kiblnd_thread_fini();
-	return 0;
-}
-
-void
-kiblnd_qp_event(struct ib_event *event, void *arg)
-{
-	kib_conn_t *conn = arg;
-
-	switch (event->event) {
-	case IB_EVENT_COMM_EST:
-		CDEBUG(D_NET, "%s established\n",
-		       libcfs_nid2str(conn->ibc_peer->ibp_nid));
-		return;
-
-	default:
-		CERROR("%s: Async QP event type %d\n",
-		       libcfs_nid2str(conn->ibc_peer->ibp_nid), event->event);
-		return;
-	}
-}
-
-static void
-kiblnd_complete(struct ib_wc *wc)
-{
-	switch (kiblnd_wreqid2type(wc->wr_id)) {
-	default:
-		LBUG();
-
-	case IBLND_WID_RDMA:
-		/* We only get RDMA completion notification if it fails.  All
-		 * subsequent work items, including the final SEND will fail
-		 * too.  However we can't print out any more info about the
-		 * failing RDMA because 'tx' might be back on the idle list or
-		 * even reused already if we didn't manage to post all our work
-		 * items */
-		CNETERR("RDMA (tx: %p) failed: %d\n",
-			kiblnd_wreqid2ptr(wc->wr_id), wc->status);
-		return;
-
-	case IBLND_WID_TX:
-		kiblnd_tx_complete(kiblnd_wreqid2ptr(wc->wr_id), wc->status);
-		return;
-
-	case IBLND_WID_RX:
-		kiblnd_rx_complete(kiblnd_wreqid2ptr(wc->wr_id), wc->status,
-				   wc->byte_len);
-		return;
-	}
-}
-
-void
-kiblnd_cq_completion(struct ib_cq *cq, void *arg)
-{
-	/* NB I'm not allowed to schedule this conn once its refcount has
-	 * reached 0.  Since fundamentally I'm racing with scheduler threads
-	 * consuming my CQ I could be called after all completions have
-	 * occurred.  But in this case, ibc_nrx == 0 && ibc_nsends_posted == 0
-	 * and this CQ is about to be destroyed so I NOOP. */
-	kib_conn_t *conn = (kib_conn_t *)arg;
-	struct kib_sched_info *sched = conn->ibc_sched;
-	unsigned long flags;
-
-	LASSERT(cq == conn->ibc_cq);
-
-	spin_lock_irqsave(&sched->ibs_lock, flags);
-
-	conn->ibc_ready = 1;
-
-	if (!conn->ibc_scheduled &&
-	    (conn->ibc_nrx > 0 ||
-	     conn->ibc_nsends_posted > 0)) {
-		kiblnd_conn_addref(conn); /* +1 ref for sched_conns */
-		conn->ibc_scheduled = 1;
-		list_add_tail(&conn->ibc_sched_list, &sched->ibs_conns);
-
-		if (waitqueue_active(&sched->ibs_waitq))
-			wake_up(&sched->ibs_waitq);
-	}
-
-	spin_unlock_irqrestore(&sched->ibs_lock, flags);
-}
-
-void
-kiblnd_cq_event(struct ib_event *event, void *arg)
-{
-	kib_conn_t *conn = arg;
-
-	CERROR("%s: async CQ event type %d\n",
-	       libcfs_nid2str(conn->ibc_peer->ibp_nid), event->event);
-}
-
-int
-kiblnd_scheduler(void *arg)
-{
-	long id = (long)arg;
-	struct kib_sched_info *sched;
-	kib_conn_t *conn;
-	wait_queue_t wait;
-	unsigned long flags;
-	struct ib_wc wc;
-	int did_something;
-	int busy_loops = 0;
-	int rc;
-
-	cfs_block_allsigs();
-
-	init_waitqueue_entry(&wait, current);
-
-	sched = kiblnd_data.kib_scheds[KIB_THREAD_CPT(id)];
-
-	rc = cfs_cpt_bind(lnet_cpt_table(), sched->ibs_cpt);
-	if (rc != 0) {
-		CWARN("Failed to bind on CPT %d, please verify whether all CPUs are healthy and reload modules if necessary, otherwise your system might under risk of low performance\n",
-		      sched->ibs_cpt);
-	}
-
-	spin_lock_irqsave(&sched->ibs_lock, flags);
-
-	while (!kiblnd_data.kib_shutdown) {
-		if (busy_loops++ >= IBLND_RESCHED) {
-			spin_unlock_irqrestore(&sched->ibs_lock, flags);
-
-			cond_resched();
-			busy_loops = 0;
-
-			spin_lock_irqsave(&sched->ibs_lock, flags);
-		}
-
-		did_something = 0;
-
-		if (!list_empty(&sched->ibs_conns)) {
-			conn = list_entry(sched->ibs_conns.next,
-					      kib_conn_t, ibc_sched_list);
-			/* take over kib_sched_conns' ref on conn... */
-			LASSERT(conn->ibc_scheduled);
-			list_del(&conn->ibc_sched_list);
-			conn->ibc_ready = 0;
-
-			spin_unlock_irqrestore(&sched->ibs_lock, flags);
-
-			rc = ib_poll_cq(conn->ibc_cq, 1, &wc);
-			if (rc == 0) {
-				rc = ib_req_notify_cq(conn->ibc_cq,
-						      IB_CQ_NEXT_COMP);
-				if (rc < 0) {
-					CWARN("%s: ib_req_notify_cq failed: %d, closing connection\n",
-					      libcfs_nid2str(conn->ibc_peer->ibp_nid), rc);
-					kiblnd_close_conn(conn, -EIO);
-					kiblnd_conn_decref(conn);
-					spin_lock_irqsave(&sched->ibs_lock,
-							      flags);
-					continue;
-				}
-
-				rc = ib_poll_cq(conn->ibc_cq, 1, &wc);
-			}
-
-			if (rc < 0) {
-				CWARN("%s: ib_poll_cq failed: %d, closing connection\n",
-				      libcfs_nid2str(conn->ibc_peer->ibp_nid),
-				      rc);
-				kiblnd_close_conn(conn, -EIO);
-				kiblnd_conn_decref(conn);
-				spin_lock_irqsave(&sched->ibs_lock, flags);
-				continue;
-			}
-
-			spin_lock_irqsave(&sched->ibs_lock, flags);
-
-			if (rc != 0 || conn->ibc_ready) {
-				/* There may be another completion waiting; get
-				 * another scheduler to check while I handle
-				 * this one... */
-				/* +1 ref for sched_conns */
-				kiblnd_conn_addref(conn);
-				list_add_tail(&conn->ibc_sched_list,
-						  &sched->ibs_conns);
-				if (waitqueue_active(&sched->ibs_waitq))
-					wake_up(&sched->ibs_waitq);
-			} else {
-				conn->ibc_scheduled = 0;
-			}
-
-			if (rc != 0) {
-				spin_unlock_irqrestore(&sched->ibs_lock, flags);
-				kiblnd_complete(&wc);
-
-				spin_lock_irqsave(&sched->ibs_lock, flags);
-			}
-
-			kiblnd_conn_decref(conn); /* ...drop my ref from above */
-			did_something = 1;
-		}
-
-		if (did_something)
-			continue;
-
-		set_current_state(TASK_INTERRUPTIBLE);
-		add_wait_queue_exclusive(&sched->ibs_waitq, &wait);
-		spin_unlock_irqrestore(&sched->ibs_lock, flags);
-
-		schedule();
-		busy_loops = 0;
-
-		remove_wait_queue(&sched->ibs_waitq, &wait);
-		spin_lock_irqsave(&sched->ibs_lock, flags);
-	}
-
-	spin_unlock_irqrestore(&sched->ibs_lock, flags);
-
-	kiblnd_thread_fini();
-	return 0;
-}
-
-int
-kiblnd_failover_thread(void *arg)
-{
-	rwlock_t *glock = &kiblnd_data.kib_global_lock;
-	kib_dev_t *dev;
-	wait_queue_t wait;
-	unsigned long flags;
-	int rc;
-
-	LASSERT(*kiblnd_tunables.kib_dev_failover != 0);
-
-	cfs_block_allsigs();
-
-	init_waitqueue_entry(&wait, current);
-	write_lock_irqsave(glock, flags);
-
-	while (!kiblnd_data.kib_shutdown) {
-		int do_failover = 0;
-		int long_sleep;
-
-		list_for_each_entry(dev, &kiblnd_data.kib_failed_devs,
-				    ibd_fail_list) {
-			if (time_before(cfs_time_current(),
-					dev->ibd_next_failover))
-				continue;
-			do_failover = 1;
-			break;
-		}
-
-		if (do_failover) {
-			list_del_init(&dev->ibd_fail_list);
-			dev->ibd_failover = 1;
-			write_unlock_irqrestore(glock, flags);
-
-			rc = kiblnd_dev_failover(dev);
-
-			write_lock_irqsave(glock, flags);
-
-			LASSERT(dev->ibd_failover);
-			dev->ibd_failover = 0;
-			if (rc >= 0) { /* Device is OK or failover succeed */
-				dev->ibd_next_failover = cfs_time_shift(3);
-				continue;
-			}
-
-			/* failed to failover, retry later */
-			dev->ibd_next_failover =
-				cfs_time_shift(min(dev->ibd_failed_failover, 10));
-			if (kiblnd_dev_can_failover(dev)) {
-				list_add_tail(&dev->ibd_fail_list,
-					      &kiblnd_data.kib_failed_devs);
-			}
-
-			continue;
-		}
-
-		/* long sleep if no more pending failover */
-		long_sleep = list_empty(&kiblnd_data.kib_failed_devs);
-
-		set_current_state(TASK_INTERRUPTIBLE);
-		add_wait_queue(&kiblnd_data.kib_failover_waitq, &wait);
-		write_unlock_irqrestore(glock, flags);
-
-		rc = schedule_timeout(long_sleep ? cfs_time_seconds(10) :
-						   cfs_time_seconds(1));
-		remove_wait_queue(&kiblnd_data.kib_failover_waitq, &wait);
-		write_lock_irqsave(glock, flags);
-
-		if (!long_sleep || rc != 0)
-			continue;
-
-		/* have a long sleep, routine check all active devices,
-		 * we need checking like this because if there is not active
-		 * connection on the dev and no SEND from local, we may listen
-		 * on wrong HCA for ever while there is a bonding failover */
-		list_for_each_entry(dev, &kiblnd_data.kib_devs, ibd_list) {
-			if (kiblnd_dev_can_failover(dev)) {
-				list_add_tail(&dev->ibd_fail_list,
-					      &kiblnd_data.kib_failed_devs);
-			}
-		}
-	}
-
-	write_unlock_irqrestore(glock, flags);
-
-	kiblnd_thread_fini();
-	return 0;
-}
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
deleted file mode 100644
index b3d1b5d627cb..000000000000
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/klnds/o2iblnd/o2iblnd_modparams.c
- *
- * Author: Eric Barton <eric@bartonsoftware.com>
- */
-
-#include "o2iblnd.h"
-
-static int service = 987;
-module_param(service, int, 0444);
-MODULE_PARM_DESC(service, "service number (within RDMA_PS_TCP)");
-
-static int cksum;
-module_param(cksum, int, 0644);
-MODULE_PARM_DESC(cksum, "set non-zero to enable message (not RDMA) checksums");
-
-static int timeout = 50;
-module_param(timeout, int, 0644);
-MODULE_PARM_DESC(timeout, "timeout (seconds)");
-
-/* Number of threads in each scheduler pool which is percpt,
- * we will estimate reasonable value based on CPUs if it's set to zero. */
-static int nscheds;
-module_param(nscheds, int, 0444);
-MODULE_PARM_DESC(nscheds, "number of threads in each scheduler pool");
-
-/* NB: this value is shared by all CPTs, it can grow at runtime */
-static int ntx = 512;
-module_param(ntx, int, 0444);
-MODULE_PARM_DESC(ntx, "# of message descriptors allocated for each pool");
-
-/* NB: this value is shared by all CPTs */
-static int credits = 256;
-module_param(credits, int, 0444);
-MODULE_PARM_DESC(credits, "# concurrent sends");
-
-static int peer_credits = 8;
-module_param(peer_credits, int, 0444);
-MODULE_PARM_DESC(peer_credits, "# concurrent sends to 1 peer");
-
-static int peer_credits_hiw;
-module_param(peer_credits_hiw, int, 0444);
-MODULE_PARM_DESC(peer_credits_hiw, "when eagerly to return credits");
-
-static int peer_buffer_credits;
-module_param(peer_buffer_credits, int, 0444);
-MODULE_PARM_DESC(peer_buffer_credits, "# per-peer router buffer credits");
-
-static int peer_timeout = 180;
-module_param(peer_timeout, int, 0444);
-MODULE_PARM_DESC(peer_timeout, "Seconds without aliveness news to declare peer dead (<=0 to disable)");
-
-static char *ipif_name = "ib0";
-module_param(ipif_name, charp, 0444);
-MODULE_PARM_DESC(ipif_name, "IPoIB interface name");
-
-static int retry_count = 5;
-module_param(retry_count, int, 0644);
-MODULE_PARM_DESC(retry_count, "Retransmissions when no ACK received");
-
-static int rnr_retry_count = 6;
-module_param(rnr_retry_count, int, 0644);
-MODULE_PARM_DESC(rnr_retry_count, "RNR retransmissions");
-
-static int keepalive = 100;
-module_param(keepalive, int, 0644);
-MODULE_PARM_DESC(keepalive, "Idle time in seconds before sending a keepalive");
-
-static int ib_mtu;
-module_param(ib_mtu, int, 0444);
-MODULE_PARM_DESC(ib_mtu, "IB MTU 256/512/1024/2048/4096");
-
-static int concurrent_sends;
-module_param(concurrent_sends, int, 0444);
-MODULE_PARM_DESC(concurrent_sends, "send work-queue sizing");
-
-static int map_on_demand;
-module_param(map_on_demand, int, 0444);
-MODULE_PARM_DESC(map_on_demand, "map on demand");
-
-/* NB: this value is shared by all CPTs, it can grow at runtime */
-static int fmr_pool_size = 512;
-module_param(fmr_pool_size, int, 0444);
-MODULE_PARM_DESC(fmr_pool_size, "size of fmr pool on each CPT (>= ntx / 4)");
-
-/* NB: this value is shared by all CPTs, it can grow at runtime */
-static int fmr_flush_trigger = 384;
-module_param(fmr_flush_trigger, int, 0444);
-MODULE_PARM_DESC(fmr_flush_trigger, "# dirty FMRs that triggers pool flush");
-
-static int fmr_cache = 1;
-module_param(fmr_cache, int, 0444);
-MODULE_PARM_DESC(fmr_cache, "non-zero to enable FMR caching");
-
-/*
- * 0: disable failover
- * 1: enable failover if necessary
- * 2: force to failover (for debug)
- */
-static int dev_failover;
-module_param(dev_failover, int, 0444);
-MODULE_PARM_DESC(dev_failover, "HCA failover for bonding (0 off, 1 on, other values reserved)");
-
-
-static int require_privileged_port;
-module_param(require_privileged_port, int, 0644);
-MODULE_PARM_DESC(require_privileged_port, "require privileged port when accepting connection");
-
-static int use_privileged_port = 1;
-module_param(use_privileged_port, int, 0644);
-MODULE_PARM_DESC(use_privileged_port, "use privileged port when initiating connection");
-
-kib_tunables_t kiblnd_tunables = {
-	.kib_dev_failover      = &dev_failover,
-	.kib_service           = &service,
-	.kib_cksum             = &cksum,
-	.kib_timeout           = &timeout,
-	.kib_keepalive         = &keepalive,
-	.kib_ntx               = &ntx,
-	.kib_credits           = &credits,
-	.kib_peertxcredits     = &peer_credits,
-	.kib_peercredits_hiw   = &peer_credits_hiw,
-	.kib_peerrtrcredits    = &peer_buffer_credits,
-	.kib_peertimeout       = &peer_timeout,
-	.kib_default_ipif      = &ipif_name,
-	.kib_retry_count       = &retry_count,
-	.kib_rnr_retry_count   = &rnr_retry_count,
-	.kib_concurrent_sends  = &concurrent_sends,
-	.kib_ib_mtu            = &ib_mtu,
-	.kib_map_on_demand     = &map_on_demand,
-	.kib_fmr_pool_size     = &fmr_pool_size,
-	.kib_fmr_flush_trigger = &fmr_flush_trigger,
-	.kib_fmr_cache         = &fmr_cache,
-	.kib_require_priv_port = &require_privileged_port,
-	.kib_use_priv_port     = &use_privileged_port,
-	.kib_nscheds           = &nscheds
-};
-
-int
-kiblnd_tunables_init(void)
-{
-	if (kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu) < 0) {
-		CERROR("Invalid ib_mtu %d, expected 256/512/1024/2048/4096\n",
-		       *kiblnd_tunables.kib_ib_mtu);
-		return -EINVAL;
-	}
-
-	if (*kiblnd_tunables.kib_peertxcredits < IBLND_CREDITS_DEFAULT)
-		*kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_DEFAULT;
-
-	if (*kiblnd_tunables.kib_peertxcredits > IBLND_CREDITS_MAX)
-		*kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_MAX;
-
-	if (*kiblnd_tunables.kib_peertxcredits > *kiblnd_tunables.kib_credits)
-		*kiblnd_tunables.kib_peertxcredits = *kiblnd_tunables.kib_credits;
-
-	if (*kiblnd_tunables.kib_peercredits_hiw < *kiblnd_tunables.kib_peertxcredits / 2)
-		*kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits / 2;
-
-	if (*kiblnd_tunables.kib_peercredits_hiw >= *kiblnd_tunables.kib_peertxcredits)
-		*kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits - 1;
-
-	if (*kiblnd_tunables.kib_map_on_demand < 0 ||
-	    *kiblnd_tunables.kib_map_on_demand > IBLND_MAX_RDMA_FRAGS)
-		*kiblnd_tunables.kib_map_on_demand = 0; /* disable map-on-demand */
-
-	if (*kiblnd_tunables.kib_map_on_demand == 1)
-		*kiblnd_tunables.kib_map_on_demand = 2; /* don't make sense to create map if only one fragment */
-
-	if (*kiblnd_tunables.kib_concurrent_sends == 0) {
-		if (*kiblnd_tunables.kib_map_on_demand > 0 &&
-		    *kiblnd_tunables.kib_map_on_demand <= IBLND_MAX_RDMA_FRAGS / 8)
-			*kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits) * 2;
-		else
-			*kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits);
-	}
-
-	if (*kiblnd_tunables.kib_concurrent_sends > *kiblnd_tunables.kib_peertxcredits * 2)
-		*kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits * 2;
-
-	if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits / 2)
-		*kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits / 2;
-
-	if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits) {
-		CWARN("Concurrent sends %d is lower than message queue size: %d, performance may drop slightly.\n",
-		      *kiblnd_tunables.kib_concurrent_sends, *kiblnd_tunables.kib_peertxcredits);
-	}
-
-	return 0;
-}
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/Makefile b/drivers/staging/lustre/lnet/klnds/socklnd/Makefile
deleted file mode 100644
index c011581d3453..000000000000
--- a/drivers/staging/lustre/lnet/klnds/socklnd/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_LNET) += ksocklnd.o
-
-ksocklnd-y := socklnd.o socklnd_cb.o socklnd_proto.o socklnd_modparams.o socklnd_lib.o
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
deleted file mode 100644
index d8bfcadd184a..000000000000
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
+++ /dev/null
@@ -1,2880 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/klnds/socklnd/socklnd.c
- *
- * Author: Zach Brown <zab@zabbo.net>
- * Author: Peter J. Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Eric Barton <eric@bartonsoftware.com>
- */
-
-#include "socklnd.h"
-
-static lnd_t the_ksocklnd;
-ksock_nal_data_t ksocknal_data;
-
-static ksock_interface_t *
-ksocknal_ip2iface(lnet_ni_t *ni, __u32 ip)
-{
-	ksock_net_t *net = ni->ni_data;
-	int i;
-	ksock_interface_t *iface;
-
-	for (i = 0; i < net->ksnn_ninterfaces; i++) {
-		LASSERT(i < LNET_MAX_INTERFACES);
-		iface = &net->ksnn_interfaces[i];
-
-		if (iface->ksni_ipaddr == ip)
-			return iface;
-	}
-
-	return NULL;
-}
-
-static ksock_route_t *
-ksocknal_create_route(__u32 ipaddr, int port)
-{
-	ksock_route_t *route;
-
-	LIBCFS_ALLOC(route, sizeof(*route));
-	if (route == NULL)
-		return NULL;
-
-	atomic_set(&route->ksnr_refcount, 1);
-	route->ksnr_peer = NULL;
-	route->ksnr_retry_interval = 0;	 /* OK to connect at any time */
-	route->ksnr_ipaddr = ipaddr;
-	route->ksnr_port = port;
-	route->ksnr_scheduled = 0;
-	route->ksnr_connecting = 0;
-	route->ksnr_connected = 0;
-	route->ksnr_deleted = 0;
-	route->ksnr_conn_count = 0;
-	route->ksnr_share_count = 0;
-
-	return route;
-}
-
-void
-ksocknal_destroy_route(ksock_route_t *route)
-{
-	LASSERT(atomic_read(&route->ksnr_refcount) == 0);
-
-	if (route->ksnr_peer != NULL)
-		ksocknal_peer_decref(route->ksnr_peer);
-
-	LIBCFS_FREE(route, sizeof(*route));
-}
-
-static int
-ksocknal_create_peer(ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
-{
-	ksock_net_t *net = ni->ni_data;
-	ksock_peer_t *peer;
-
-	LASSERT(id.nid != LNET_NID_ANY);
-	LASSERT(id.pid != LNET_PID_ANY);
-	LASSERT(!in_interrupt());
-
-	LIBCFS_ALLOC(peer, sizeof(*peer));
-	if (peer == NULL)
-		return -ENOMEM;
-
-	peer->ksnp_ni = ni;
-	peer->ksnp_id = id;
-	atomic_set(&peer->ksnp_refcount, 1);   /* 1 ref for caller */
-	peer->ksnp_closing = 0;
-	peer->ksnp_accepting = 0;
-	peer->ksnp_proto = NULL;
-	peer->ksnp_last_alive = 0;
-	peer->ksnp_zc_next_cookie = SOCKNAL_KEEPALIVE_PING + 1;
-
-	INIT_LIST_HEAD(&peer->ksnp_conns);
-	INIT_LIST_HEAD(&peer->ksnp_routes);
-	INIT_LIST_HEAD(&peer->ksnp_tx_queue);
-	INIT_LIST_HEAD(&peer->ksnp_zc_req_list);
-	spin_lock_init(&peer->ksnp_lock);
-
-	spin_lock_bh(&net->ksnn_lock);
-
-	if (net->ksnn_shutdown) {
-		spin_unlock_bh(&net->ksnn_lock);
-
-		LIBCFS_FREE(peer, sizeof(*peer));
-		CERROR("Can't create peer: network shutdown\n");
-		return -ESHUTDOWN;
-	}
-
-	net->ksnn_npeers++;
-
-	spin_unlock_bh(&net->ksnn_lock);
-
-	*peerp = peer;
-	return 0;
-}
-
-void
-ksocknal_destroy_peer(ksock_peer_t *peer)
-{
-	ksock_net_t *net = peer->ksnp_ni->ni_data;
-
-	CDEBUG(D_NET, "peer %s %p deleted\n",
-		libcfs_id2str(peer->ksnp_id), peer);
-
-	LASSERT(atomic_read(&peer->ksnp_refcount) == 0);
-	LASSERT(peer->ksnp_accepting == 0);
-	LASSERT(list_empty(&peer->ksnp_conns));
-	LASSERT(list_empty(&peer->ksnp_routes));
-	LASSERT(list_empty(&peer->ksnp_tx_queue));
-	LASSERT(list_empty(&peer->ksnp_zc_req_list));
-
-	LIBCFS_FREE(peer, sizeof(*peer));
-
-	/* NB a peer's connections and routes keep a reference on their peer
-	 * until they are destroyed, so we can be assured that _all_ state to
-	 * do with this peer has been cleaned up when its refcount drops to
-	 * zero. */
-	spin_lock_bh(&net->ksnn_lock);
-	net->ksnn_npeers--;
-	spin_unlock_bh(&net->ksnn_lock);
-}
-
-ksock_peer_t *
-ksocknal_find_peer_locked(lnet_ni_t *ni, lnet_process_id_t id)
-{
-	struct list_head *peer_list = ksocknal_nid2peerlist(id.nid);
-	struct list_head *tmp;
-	ksock_peer_t *peer;
-
-	list_for_each(tmp, peer_list) {
-
-		peer = list_entry(tmp, ksock_peer_t, ksnp_list);
-
-		LASSERT(!peer->ksnp_closing);
-
-		if (peer->ksnp_ni != ni)
-			continue;
-
-		if (peer->ksnp_id.nid != id.nid ||
-		    peer->ksnp_id.pid != id.pid)
-			continue;
-
-		CDEBUG(D_NET, "got peer [%p] -> %s (%d)\n",
-		       peer, libcfs_id2str(id),
-		       atomic_read(&peer->ksnp_refcount));
-		return peer;
-	}
-	return NULL;
-}
-
-ksock_peer_t *
-ksocknal_find_peer(lnet_ni_t *ni, lnet_process_id_t id)
-{
-	ksock_peer_t *peer;
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-	peer = ksocknal_find_peer_locked(ni, id);
-	if (peer != NULL)			/* +1 ref for caller? */
-		ksocknal_peer_addref(peer);
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-
-	return peer;
-}
-
-static void
-ksocknal_unlink_peer_locked(ksock_peer_t *peer)
-{
-	int i;
-	__u32 ip;
-	ksock_interface_t *iface;
-
-	for (i = 0; i < peer->ksnp_n_passive_ips; i++) {
-		LASSERT(i < LNET_MAX_INTERFACES);
-		ip = peer->ksnp_passive_ips[i];
-
-		iface = ksocknal_ip2iface(peer->ksnp_ni, ip);
-		/* All IPs in peer->ksnp_passive_ips[] come from the
-		 * interface list, therefore the call must succeed. */
-		LASSERT(iface != NULL);
-
-		CDEBUG(D_NET, "peer=%p iface=%p ksni_nroutes=%d\n",
-		       peer, iface, iface->ksni_nroutes);
-		iface->ksni_npeers--;
-	}
-
-	LASSERT(list_empty(&peer->ksnp_conns));
-	LASSERT(list_empty(&peer->ksnp_routes));
-	LASSERT(!peer->ksnp_closing);
-	peer->ksnp_closing = 1;
-	list_del(&peer->ksnp_list);
-	/* lose peerlist's ref */
-	ksocknal_peer_decref(peer);
-}
-
-static int
-ksocknal_get_peer_info(lnet_ni_t *ni, int index,
-			lnet_process_id_t *id, __u32 *myip, __u32 *peer_ip,
-			int *port, int *conn_count, int *share_count)
-{
-	ksock_peer_t *peer;
-	struct list_head *ptmp;
-	ksock_route_t *route;
-	struct list_head *rtmp;
-	int i;
-	int j;
-	int rc = -ENOENT;
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-
-		list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
-
-			if (peer->ksnp_ni != ni)
-				continue;
-
-			if (peer->ksnp_n_passive_ips == 0 &&
-			    list_empty(&peer->ksnp_routes)) {
-				if (index-- > 0)
-					continue;
-
-				*id = peer->ksnp_id;
-				*myip = 0;
-				*peer_ip = 0;
-				*port = 0;
-				*conn_count = 0;
-				*share_count = 0;
-				rc = 0;
-				goto out;
-			}
-
-			for (j = 0; j < peer->ksnp_n_passive_ips; j++) {
-				if (index-- > 0)
-					continue;
-
-				*id = peer->ksnp_id;
-				*myip = peer->ksnp_passive_ips[j];
-				*peer_ip = 0;
-				*port = 0;
-				*conn_count = 0;
-				*share_count = 0;
-				rc = 0;
-				goto out;
-			}
-
-			list_for_each(rtmp, &peer->ksnp_routes) {
-				if (index-- > 0)
-					continue;
-
-				route = list_entry(rtmp, ksock_route_t,
-						       ksnr_list);
-
-				*id = peer->ksnp_id;
-				*myip = route->ksnr_myipaddr;
-				*peer_ip = route->ksnr_ipaddr;
-				*port = route->ksnr_port;
-				*conn_count = route->ksnr_conn_count;
-				*share_count = route->ksnr_share_count;
-				rc = 0;
-				goto out;
-			}
-		}
-	}
- out:
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-	return rc;
-}
-
-static void
-ksocknal_associate_route_conn_locked(ksock_route_t *route, ksock_conn_t *conn)
-{
-	ksock_peer_t *peer = route->ksnr_peer;
-	int type = conn->ksnc_type;
-	ksock_interface_t *iface;
-
-	conn->ksnc_route = route;
-	ksocknal_route_addref(route);
-
-	if (route->ksnr_myipaddr != conn->ksnc_myipaddr) {
-		if (route->ksnr_myipaddr == 0) {
-			/* route wasn't bound locally yet (the initial route) */
-			CDEBUG(D_NET, "Binding %s %pI4h to %pI4h\n",
-			       libcfs_id2str(peer->ksnp_id),
-			       &route->ksnr_ipaddr,
-			       &conn->ksnc_myipaddr);
-		} else {
-			CDEBUG(D_NET, "Rebinding %s %pI4h from %pI4h to %pI4h\n",
-			       libcfs_id2str(peer->ksnp_id),
-			       &route->ksnr_ipaddr,
-			       &route->ksnr_myipaddr,
-			       &conn->ksnc_myipaddr);
-
-			iface = ksocknal_ip2iface(route->ksnr_peer->ksnp_ni,
-						  route->ksnr_myipaddr);
-			if (iface != NULL)
-				iface->ksni_nroutes--;
-		}
-		route->ksnr_myipaddr = conn->ksnc_myipaddr;
-		iface = ksocknal_ip2iface(route->ksnr_peer->ksnp_ni,
-					  route->ksnr_myipaddr);
-		if (iface != NULL)
-			iface->ksni_nroutes++;
-	}
-
-	route->ksnr_connected |= (1<<type);
-	route->ksnr_conn_count++;
-
-	/* Successful connection => further attempts can
-	 * proceed immediately */
-	route->ksnr_retry_interval = 0;
-}
-
-static void
-ksocknal_add_route_locked(ksock_peer_t *peer, ksock_route_t *route)
-{
-	struct list_head *tmp;
-	ksock_conn_t *conn;
-	ksock_route_t *route2;
-
-	LASSERT(!peer->ksnp_closing);
-	LASSERT(route->ksnr_peer == NULL);
-	LASSERT(!route->ksnr_scheduled);
-	LASSERT(!route->ksnr_connecting);
-	LASSERT(route->ksnr_connected == 0);
-
-	/* LASSERT(unique) */
-	list_for_each(tmp, &peer->ksnp_routes) {
-		route2 = list_entry(tmp, ksock_route_t, ksnr_list);
-
-		if (route2->ksnr_ipaddr == route->ksnr_ipaddr) {
-			CERROR("Duplicate route %s %pI4h\n",
-				libcfs_id2str(peer->ksnp_id),
-				&route->ksnr_ipaddr);
-			LBUG();
-		}
-	}
-
-	route->ksnr_peer = peer;
-	ksocknal_peer_addref(peer);
-	/* peer's routelist takes over my ref on 'route' */
-	list_add_tail(&route->ksnr_list, &peer->ksnp_routes);
-
-	list_for_each(tmp, &peer->ksnp_conns) {
-		conn = list_entry(tmp, ksock_conn_t, ksnc_list);
-
-		if (conn->ksnc_ipaddr != route->ksnr_ipaddr)
-			continue;
-
-		ksocknal_associate_route_conn_locked(route, conn);
-		/* keep going (typed routes) */
-	}
-}
-
-static void
-ksocknal_del_route_locked(ksock_route_t *route)
-{
-	ksock_peer_t *peer = route->ksnr_peer;
-	ksock_interface_t *iface;
-	ksock_conn_t *conn;
-	struct list_head *ctmp;
-	struct list_head *cnxt;
-
-	LASSERT(!route->ksnr_deleted);
-
-	/* Close associated conns */
-	list_for_each_safe(ctmp, cnxt, &peer->ksnp_conns) {
-		conn = list_entry(ctmp, ksock_conn_t, ksnc_list);
-
-		if (conn->ksnc_route != route)
-			continue;
-
-		ksocknal_close_conn_locked(conn, 0);
-	}
-
-	if (route->ksnr_myipaddr != 0) {
-		iface = ksocknal_ip2iface(route->ksnr_peer->ksnp_ni,
-					  route->ksnr_myipaddr);
-		if (iface != NULL)
-			iface->ksni_nroutes--;
-	}
-
-	route->ksnr_deleted = 1;
-	list_del(&route->ksnr_list);
-	ksocknal_route_decref(route);	     /* drop peer's ref */
-
-	if (list_empty(&peer->ksnp_routes) &&
-	    list_empty(&peer->ksnp_conns)) {
-		/* I've just removed the last route to a peer with no active
-		 * connections */
-		ksocknal_unlink_peer_locked(peer);
-	}
-}
-
-int
-ksocknal_add_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
-{
-	struct list_head *tmp;
-	ksock_peer_t *peer;
-	ksock_peer_t *peer2;
-	ksock_route_t *route;
-	ksock_route_t *route2;
-	int rc;
-
-	if (id.nid == LNET_NID_ANY ||
-	    id.pid == LNET_PID_ANY)
-		return -EINVAL;
-
-	/* Have a brand new peer ready... */
-	rc = ksocknal_create_peer(&peer, ni, id);
-	if (rc != 0)
-		return rc;
-
-	route = ksocknal_create_route(ipaddr, port);
-	if (route == NULL) {
-		ksocknal_peer_decref(peer);
-		return -ENOMEM;
-	}
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	/* always called with a ref on ni, so shutdown can't have started */
-	LASSERT(((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
-
-	peer2 = ksocknal_find_peer_locked(ni, id);
-	if (peer2 != NULL) {
-		ksocknal_peer_decref(peer);
-		peer = peer2;
-	} else {
-		/* peer table takes my ref on peer */
-		list_add_tail(&peer->ksnp_list,
-				   ksocknal_nid2peerlist(id.nid));
-	}
-
-	route2 = NULL;
-	list_for_each(tmp, &peer->ksnp_routes) {
-		route2 = list_entry(tmp, ksock_route_t, ksnr_list);
-
-		if (route2->ksnr_ipaddr == ipaddr)
-			break;
-
-		route2 = NULL;
-	}
-	if (route2 == NULL) {
-		ksocknal_add_route_locked(peer, route);
-		route->ksnr_share_count++;
-	} else {
-		ksocknal_route_decref(route);
-		route2->ksnr_share_count++;
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	return 0;
-}
-
-static void
-ksocknal_del_peer_locked(ksock_peer_t *peer, __u32 ip)
-{
-	ksock_conn_t *conn;
-	ksock_route_t *route;
-	struct list_head *tmp;
-	struct list_head *nxt;
-	int nshared;
-
-	LASSERT(!peer->ksnp_closing);
-
-	/* Extra ref prevents peer disappearing until I'm done with it */
-	ksocknal_peer_addref(peer);
-
-	list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
-		route = list_entry(tmp, ksock_route_t, ksnr_list);
-
-		/* no match */
-		if (!(ip == 0 || route->ksnr_ipaddr == ip))
-			continue;
-
-		route->ksnr_share_count = 0;
-		/* This deletes associated conns too */
-		ksocknal_del_route_locked(route);
-	}
-
-	nshared = 0;
-	list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
-		route = list_entry(tmp, ksock_route_t, ksnr_list);
-		nshared += route->ksnr_share_count;
-	}
-
-	if (nshared == 0) {
-		/* remove everything else if there are no explicit entries
-		 * left */
-
-		list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
-			route = list_entry(tmp, ksock_route_t, ksnr_list);
-
-			/* we should only be removing auto-entries */
-			LASSERT(route->ksnr_share_count == 0);
-			ksocknal_del_route_locked(route);
-		}
-
-		list_for_each_safe(tmp, nxt, &peer->ksnp_conns) {
-			conn = list_entry(tmp, ksock_conn_t, ksnc_list);
-
-			ksocknal_close_conn_locked(conn, 0);
-		}
-	}
-
-	ksocknal_peer_decref(peer);
-	/* NB peer unlinks itself when last conn/route is removed */
-}
-
-static int
-ksocknal_del_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
-{
-	LIST_HEAD(zombies);
-	struct list_head *ptmp;
-	struct list_head *pnxt;
-	ksock_peer_t *peer;
-	int lo;
-	int hi;
-	int i;
-	int rc = -ENOENT;
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	if (id.nid != LNET_NID_ANY)
-		lo = hi = (int)(ksocknal_nid2peerlist(id.nid) - ksocknal_data.ksnd_peers);
-	else {
-		lo = 0;
-		hi = ksocknal_data.ksnd_peer_hash_size - 1;
-	}
-
-	for (i = lo; i <= hi; i++) {
-		list_for_each_safe(ptmp, pnxt,
-					&ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
-
-			if (peer->ksnp_ni != ni)
-				continue;
-
-			if (!((id.nid == LNET_NID_ANY || peer->ksnp_id.nid == id.nid) &&
-			      (id.pid == LNET_PID_ANY || peer->ksnp_id.pid == id.pid)))
-				continue;
-
-			ksocknal_peer_addref(peer);     /* a ref for me... */
-
-			ksocknal_del_peer_locked(peer, ip);
-
-			if (peer->ksnp_closing &&
-			    !list_empty(&peer->ksnp_tx_queue)) {
-				LASSERT(list_empty(&peer->ksnp_conns));
-				LASSERT(list_empty(&peer->ksnp_routes));
-
-				list_splice_init(&peer->ksnp_tx_queue,
-						     &zombies);
-			}
-
-			ksocknal_peer_decref(peer);     /* ...till here */
-
-			rc = 0;		 /* matched! */
-		}
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	ksocknal_txlist_done(ni, &zombies, 1);
-
-	return rc;
-}
-
-static ksock_conn_t *
-ksocknal_get_conn_by_idx(lnet_ni_t *ni, int index)
-{
-	ksock_peer_t *peer;
-	struct list_head *ptmp;
-	ksock_conn_t *conn;
-	struct list_head *ctmp;
-	int i;
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-		list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
-
-			LASSERT(!peer->ksnp_closing);
-
-			if (peer->ksnp_ni != ni)
-				continue;
-
-			list_for_each(ctmp, &peer->ksnp_conns) {
-				if (index-- > 0)
-					continue;
-
-				conn = list_entry(ctmp, ksock_conn_t,
-						       ksnc_list);
-				ksocknal_conn_addref(conn);
-				read_unlock(&ksocknal_data.ksnd_global_lock);
-				return conn;
-			}
-		}
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-	return NULL;
-}
-
-static ksock_sched_t *
-ksocknal_choose_scheduler_locked(unsigned int cpt)
-{
-	struct ksock_sched_info	*info = ksocknal_data.ksnd_sched_info[cpt];
-	ksock_sched_t *sched;
-	int i;
-
-	LASSERT(info->ksi_nthreads > 0);
-
-	sched = &info->ksi_scheds[0];
-	/*
-	 * NB: it's safe so far, but info->ksi_nthreads could be changed
-	 * at runtime when we have dynamic LNet configuration, then we
-	 * need to take care of this.
-	 */
-	for (i = 1; i < info->ksi_nthreads; i++) {
-		if (sched->kss_nconns > info->ksi_scheds[i].kss_nconns)
-			sched = &info->ksi_scheds[i];
-	}
-
-	return sched;
-}
-
-static int
-ksocknal_local_ipvec(lnet_ni_t *ni, __u32 *ipaddrs)
-{
-	ksock_net_t *net = ni->ni_data;
-	int i;
-	int nip;
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	nip = net->ksnn_ninterfaces;
-	LASSERT(nip <= LNET_MAX_INTERFACES);
-
-	/* Only offer interfaces for additional connections if I have
-	 * more than one. */
-	if (nip < 2) {
-		read_unlock(&ksocknal_data.ksnd_global_lock);
-		return 0;
-	}
-
-	for (i = 0; i < nip; i++) {
-		ipaddrs[i] = net->ksnn_interfaces[i].ksni_ipaddr;
-		LASSERT(ipaddrs[i] != 0);
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-	return nip;
-}
-
-static int
-ksocknal_match_peerip(ksock_interface_t *iface, __u32 *ips, int nips)
-{
-	int best_netmatch = 0;
-	int best_xor      = 0;
-	int best	  = -1;
-	int this_xor;
-	int this_netmatch;
-	int i;
-
-	for (i = 0; i < nips; i++) {
-		if (ips[i] == 0)
-			continue;
-
-		this_xor = ips[i] ^ iface->ksni_ipaddr;
-		this_netmatch = ((this_xor & iface->ksni_netmask) == 0) ? 1 : 0;
-
-		if (!(best < 0 ||
-		      best_netmatch < this_netmatch ||
-		      (best_netmatch == this_netmatch &&
-		       best_xor > this_xor)))
-			continue;
-
-		best = i;
-		best_netmatch = this_netmatch;
-		best_xor = this_xor;
-	}
-
-	LASSERT(best >= 0);
-	return best;
-}
-
-static int
-ksocknal_select_ips(ksock_peer_t *peer, __u32 *peerips, int n_peerips)
-{
-	rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
-	ksock_net_t *net = peer->ksnp_ni->ni_data;
-	ksock_interface_t *iface;
-	ksock_interface_t *best_iface;
-	int n_ips;
-	int i;
-	int j;
-	int k;
-	__u32 ip;
-	__u32 xor;
-	int this_netmatch;
-	int best_netmatch;
-	int best_npeers;
-
-	/* CAVEAT EMPTOR: We do all our interface matching with an
-	 * exclusive hold of global lock at IRQ priority.  We're only
-	 * expecting to be dealing with small numbers of interfaces, so the
-	 * O(n**3)-ness shouldn't matter */
-
-	/* Also note that I'm not going to return more than n_peerips
-	 * interfaces, even if I have more myself */
-
-	write_lock_bh(global_lock);
-
-	LASSERT(n_peerips <= LNET_MAX_INTERFACES);
-	LASSERT(net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
-
-	/* Only match interfaces for additional connections
-	 * if I have > 1 interface */
-	n_ips = (net->ksnn_ninterfaces < 2) ? 0 :
-		min(n_peerips, net->ksnn_ninterfaces);
-
-	for (i = 0; peer->ksnp_n_passive_ips < n_ips; i++) {
-		/*	      ^ yes really... */
-
-		/* If we have any new interfaces, first tick off all the
-		 * peer IPs that match old interfaces, then choose new
-		 * interfaces to match the remaining peer IPS.
-		 * We don't forget interfaces we've stopped using; we might
-		 * start using them again... */
-
-		if (i < peer->ksnp_n_passive_ips) {
-			/* Old interface. */
-			ip = peer->ksnp_passive_ips[i];
-			best_iface = ksocknal_ip2iface(peer->ksnp_ni, ip);
-
-		} else {
-			/* choose a new interface */
-			LASSERT(i == peer->ksnp_n_passive_ips);
-
-			best_iface = NULL;
-			best_netmatch = 0;
-			best_npeers = 0;
-
-			for (j = 0; j < net->ksnn_ninterfaces; j++) {
-				iface = &net->ksnn_interfaces[j];
-				ip = iface->ksni_ipaddr;
-
-				for (k = 0; k < peer->ksnp_n_passive_ips; k++)
-					if (peer->ksnp_passive_ips[k] == ip)
-						break;
-
-				if (k < peer->ksnp_n_passive_ips) /* using it already */
-					continue;
-
-				k = ksocknal_match_peerip(iface, peerips, n_peerips);
-				xor = ip ^ peerips[k];
-				this_netmatch = ((xor & iface->ksni_netmask) == 0) ? 1 : 0;
-
-				if (!(best_iface == NULL ||
-				      best_netmatch < this_netmatch ||
-				      (best_netmatch == this_netmatch &&
-				       best_npeers > iface->ksni_npeers)))
-					continue;
-
-				best_iface = iface;
-				best_netmatch = this_netmatch;
-				best_npeers = iface->ksni_npeers;
-			}
-
-			best_iface->ksni_npeers++;
-			ip = best_iface->ksni_ipaddr;
-			peer->ksnp_passive_ips[i] = ip;
-			peer->ksnp_n_passive_ips = i+1;
-		}
-
-		/* mark the best matching peer IP used */
-		j = ksocknal_match_peerip(best_iface, peerips, n_peerips);
-		peerips[j] = 0;
-	}
-
-	/* Overwrite input peer IP addresses */
-	memcpy(peerips, peer->ksnp_passive_ips, n_ips * sizeof(*peerips));
-
-	write_unlock_bh(global_lock);
-
-	return n_ips;
-}
-
-static void
-ksocknal_create_routes(ksock_peer_t *peer, int port,
-		       __u32 *peer_ipaddrs, int npeer_ipaddrs)
-{
-	ksock_route_t *newroute = NULL;
-	rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
-	lnet_ni_t *ni = peer->ksnp_ni;
-	ksock_net_t *net = ni->ni_data;
-	struct list_head *rtmp;
-	ksock_route_t *route;
-	ksock_interface_t *iface;
-	ksock_interface_t *best_iface;
-	int best_netmatch;
-	int this_netmatch;
-	int best_nroutes;
-	int i;
-	int j;
-
-	/* CAVEAT EMPTOR: We do all our interface matching with an
-	 * exclusive hold of global lock at IRQ priority.  We're only
-	 * expecting to be dealing with small numbers of interfaces, so the
-	 * O(n**3)-ness here shouldn't matter */
-
-	write_lock_bh(global_lock);
-
-	if (net->ksnn_ninterfaces < 2) {
-		/* Only create additional connections
-		 * if I have > 1 interface */
-		write_unlock_bh(global_lock);
-		return;
-	}
-
-	LASSERT(npeer_ipaddrs <= LNET_MAX_INTERFACES);
-
-	for (i = 0; i < npeer_ipaddrs; i++) {
-		if (newroute != NULL) {
-			newroute->ksnr_ipaddr = peer_ipaddrs[i];
-		} else {
-			write_unlock_bh(global_lock);
-
-			newroute = ksocknal_create_route(peer_ipaddrs[i], port);
-			if (newroute == NULL)
-				return;
-
-			write_lock_bh(global_lock);
-		}
-
-		if (peer->ksnp_closing) {
-			/* peer got closed under me */
-			break;
-		}
-
-		/* Already got a route? */
-		route = NULL;
-		list_for_each(rtmp, &peer->ksnp_routes) {
-			route = list_entry(rtmp, ksock_route_t, ksnr_list);
-
-			if (route->ksnr_ipaddr == newroute->ksnr_ipaddr)
-				break;
-
-			route = NULL;
-		}
-		if (route != NULL)
-			continue;
-
-		best_iface = NULL;
-		best_nroutes = 0;
-		best_netmatch = 0;
-
-		LASSERT(net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
-
-		/* Select interface to connect from */
-		for (j = 0; j < net->ksnn_ninterfaces; j++) {
-			iface = &net->ksnn_interfaces[j];
-
-			/* Using this interface already? */
-			list_for_each(rtmp, &peer->ksnp_routes) {
-				route = list_entry(rtmp, ksock_route_t,
-						       ksnr_list);
-
-				if (route->ksnr_myipaddr == iface->ksni_ipaddr)
-					break;
-
-				route = NULL;
-			}
-			if (route != NULL)
-				continue;
-
-			this_netmatch = (((iface->ksni_ipaddr ^
-					   newroute->ksnr_ipaddr) &
-					   iface->ksni_netmask) == 0) ? 1 : 0;
-
-			if (!(best_iface == NULL ||
-			      best_netmatch < this_netmatch ||
-			      (best_netmatch == this_netmatch &&
-			       best_nroutes > iface->ksni_nroutes)))
-				continue;
-
-			best_iface = iface;
-			best_netmatch = this_netmatch;
-			best_nroutes = iface->ksni_nroutes;
-		}
-
-		if (best_iface == NULL)
-			continue;
-
-		newroute->ksnr_myipaddr = best_iface->ksni_ipaddr;
-		best_iface->ksni_nroutes++;
-
-		ksocknal_add_route_locked(peer, newroute);
-		newroute = NULL;
-	}
-
-	write_unlock_bh(global_lock);
-	if (newroute != NULL)
-		ksocknal_route_decref(newroute);
-}
-
-int
-ksocknal_accept(lnet_ni_t *ni, struct socket *sock)
-{
-	ksock_connreq_t *cr;
-	int rc;
-	__u32 peer_ip;
-	int peer_port;
-
-	rc = lnet_sock_getaddr(sock, 1, &peer_ip, &peer_port);
-	LASSERT(rc == 0);		      /* we succeeded before */
-
-	LIBCFS_ALLOC(cr, sizeof(*cr));
-	if (cr == NULL) {
-		LCONSOLE_ERROR_MSG(0x12f, "Dropping connection request from %pI4h: memory exhausted\n",
-				   &peer_ip);
-		return -ENOMEM;
-	}
-
-	lnet_ni_addref(ni);
-	cr->ksncr_ni   = ni;
-	cr->ksncr_sock = sock;
-
-	spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
-
-	list_add_tail(&cr->ksncr_list, &ksocknal_data.ksnd_connd_connreqs);
-	wake_up(&ksocknal_data.ksnd_connd_waitq);
-
-	spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
-	return 0;
-}
-
-static int
-ksocknal_connecting(ksock_peer_t *peer, __u32 ipaddr)
-{
-	ksock_route_t *route;
-
-	list_for_each_entry(route, &peer->ksnp_routes, ksnr_list) {
-
-		if (route->ksnr_ipaddr == ipaddr)
-			return route->ksnr_connecting;
-	}
-	return 0;
-}
-
-int
-ksocknal_create_conn(lnet_ni_t *ni, ksock_route_t *route,
-		      struct socket *sock, int type)
-{
-	rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
-	LIST_HEAD(zombies);
-	lnet_process_id_t peerid;
-	struct list_head *tmp;
-	__u64 incarnation;
-	ksock_conn_t *conn;
-	ksock_conn_t *conn2;
-	ksock_peer_t *peer = NULL;
-	ksock_peer_t *peer2;
-	ksock_sched_t *sched;
-	ksock_hello_msg_t *hello;
-	int cpt;
-	ksock_tx_t *tx;
-	ksock_tx_t *txtmp;
-	int rc;
-	int active;
-	char *warn = NULL;
-
-	active = (route != NULL);
-
-	LASSERT(active == (type != SOCKLND_CONN_NONE));
-
-	LIBCFS_ALLOC(conn, sizeof(*conn));
-	if (conn == NULL) {
-		rc = -ENOMEM;
-		goto failed_0;
-	}
-
-	conn->ksnc_peer = NULL;
-	conn->ksnc_route = NULL;
-	conn->ksnc_sock = sock;
-	/* 2 ref, 1 for conn, another extra ref prevents socket
-	 * being closed before establishment of connection */
-	atomic_set(&conn->ksnc_sock_refcount, 2);
-	conn->ksnc_type = type;
-	ksocknal_lib_save_callback(sock, conn);
-	atomic_set(&conn->ksnc_conn_refcount, 1); /* 1 ref for me */
-
-	conn->ksnc_rx_ready = 0;
-	conn->ksnc_rx_scheduled = 0;
-
-	INIT_LIST_HEAD(&conn->ksnc_tx_queue);
-	conn->ksnc_tx_ready = 0;
-	conn->ksnc_tx_scheduled = 0;
-	conn->ksnc_tx_carrier = NULL;
-	atomic_set(&conn->ksnc_tx_nob, 0);
-
-	LIBCFS_ALLOC(hello, offsetof(ksock_hello_msg_t,
-				     kshm_ips[LNET_MAX_INTERFACES]));
-	if (hello == NULL) {
-		rc = -ENOMEM;
-		goto failed_1;
-	}
-
-	/* stash conn's local and remote addrs */
-	rc = ksocknal_lib_get_conn_addrs(conn);
-	if (rc != 0)
-		goto failed_1;
-
-	/* Find out/confirm peer's NID and connection type and get the
-	 * vector of interfaces she's willing to let me connect to.
-	 * Passive connections use the listener timeout since the peer sends
-	 * eagerly */
-
-	if (active) {
-		peer = route->ksnr_peer;
-		LASSERT(ni == peer->ksnp_ni);
-
-		/* Active connection sends HELLO eagerly */
-		hello->kshm_nips = ksocknal_local_ipvec(ni, hello->kshm_ips);
-		peerid = peer->ksnp_id;
-
-		write_lock_bh(global_lock);
-		conn->ksnc_proto = peer->ksnp_proto;
-		write_unlock_bh(global_lock);
-
-		if (conn->ksnc_proto == NULL) {
-			 conn->ksnc_proto = &ksocknal_protocol_v3x;
-#if SOCKNAL_VERSION_DEBUG
-			 if (*ksocknal_tunables.ksnd_protocol == 2)
-				 conn->ksnc_proto = &ksocknal_protocol_v2x;
-			 else if (*ksocknal_tunables.ksnd_protocol == 1)
-				 conn->ksnc_proto = &ksocknal_protocol_v1x;
-#endif
-		}
-
-		rc = ksocknal_send_hello(ni, conn, peerid.nid, hello);
-		if (rc != 0)
-			goto failed_1;
-	} else {
-		peerid.nid = LNET_NID_ANY;
-		peerid.pid = LNET_PID_ANY;
-
-		/* Passive, get protocol from peer */
-		conn->ksnc_proto = NULL;
-	}
-
-	rc = ksocknal_recv_hello(ni, conn, hello, &peerid, &incarnation);
-	if (rc < 0)
-		goto failed_1;
-
-	LASSERT(rc == 0 || active);
-	LASSERT(conn->ksnc_proto != NULL);
-	LASSERT(peerid.nid != LNET_NID_ANY);
-
-	cpt = lnet_cpt_of_nid(peerid.nid);
-
-	if (active) {
-		ksocknal_peer_addref(peer);
-		write_lock_bh(global_lock);
-	} else {
-		rc = ksocknal_create_peer(&peer, ni, peerid);
-		if (rc != 0)
-			goto failed_1;
-
-		write_lock_bh(global_lock);
-
-		/* called with a ref on ni, so shutdown can't have started */
-		LASSERT(((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
-
-		peer2 = ksocknal_find_peer_locked(ni, peerid);
-		if (peer2 == NULL) {
-			/* NB this puts an "empty" peer in the peer
-			 * table (which takes my ref) */
-			list_add_tail(&peer->ksnp_list,
-					  ksocknal_nid2peerlist(peerid.nid));
-		} else {
-			ksocknal_peer_decref(peer);
-			peer = peer2;
-		}
-
-		/* +1 ref for me */
-		ksocknal_peer_addref(peer);
-		peer->ksnp_accepting++;
-
-		/* Am I already connecting to this guy?  Resolve in
-		 * favour of higher NID... */
-		if (peerid.nid < ni->ni_nid &&
-		    ksocknal_connecting(peer, conn->ksnc_ipaddr)) {
-			rc = EALREADY;
-			warn = "connection race resolution";
-			goto failed_2;
-		}
-	}
-
-	if (peer->ksnp_closing ||
-	    (active && route->ksnr_deleted)) {
-		/* peer/route got closed under me */
-		rc = -ESTALE;
-		warn = "peer/route removed";
-		goto failed_2;
-	}
-
-	if (peer->ksnp_proto == NULL) {
-		/* Never connected before.
-		 * NB recv_hello may have returned EPROTO to signal my peer
-		 * wants a different protocol than the one I asked for.
-		 */
-		LASSERT(list_empty(&peer->ksnp_conns));
-
-		peer->ksnp_proto = conn->ksnc_proto;
-		peer->ksnp_incarnation = incarnation;
-	}
-
-	if (peer->ksnp_proto != conn->ksnc_proto ||
-	    peer->ksnp_incarnation != incarnation) {
-		/* Peer rebooted or I've got the wrong protocol version */
-		ksocknal_close_peer_conns_locked(peer, 0, 0);
-
-		peer->ksnp_proto = NULL;
-		rc = ESTALE;
-		warn = peer->ksnp_incarnation != incarnation ?
-		       "peer rebooted" :
-		       "wrong proto version";
-		goto failed_2;
-	}
-
-	switch (rc) {
-	default:
-		LBUG();
-	case 0:
-		break;
-	case EALREADY:
-		warn = "lost conn race";
-		goto failed_2;
-	case EPROTO:
-		warn = "retry with different protocol version";
-		goto failed_2;
-	}
-
-	/* Refuse to duplicate an existing connection, unless this is a
-	 * loopback connection */
-	if (conn->ksnc_ipaddr != conn->ksnc_myipaddr) {
-		list_for_each(tmp, &peer->ksnp_conns) {
-			conn2 = list_entry(tmp, ksock_conn_t, ksnc_list);
-
-			if (conn2->ksnc_ipaddr != conn->ksnc_ipaddr ||
-			    conn2->ksnc_myipaddr != conn->ksnc_myipaddr ||
-			    conn2->ksnc_type != conn->ksnc_type)
-				continue;
-
-			/* Reply on a passive connection attempt so the peer
-			 * realises we're connected. */
-			LASSERT(rc == 0);
-			if (!active)
-				rc = EALREADY;
-
-			warn = "duplicate";
-			goto failed_2;
-		}
-	}
-
-	/* If the connection created by this route didn't bind to the IP
-	 * address the route connected to, the connection/route matching
-	 * code below probably isn't going to work. */
-	if (active &&
-	    route->ksnr_ipaddr != conn->ksnc_ipaddr) {
-		CERROR("Route %s %pI4h connected to %pI4h\n",
-		       libcfs_id2str(peer->ksnp_id),
-		       &route->ksnr_ipaddr,
-		       &conn->ksnc_ipaddr);
-	}
-
-	/* Search for a route corresponding to the new connection and
-	 * create an association.  This allows incoming connections created
-	 * by routes in my peer to match my own route entries so I don't
-	 * continually create duplicate routes. */
-	list_for_each(tmp, &peer->ksnp_routes) {
-		route = list_entry(tmp, ksock_route_t, ksnr_list);
-
-		if (route->ksnr_ipaddr != conn->ksnc_ipaddr)
-			continue;
-
-		ksocknal_associate_route_conn_locked(route, conn);
-		break;
-	}
-
-	conn->ksnc_peer = peer;		 /* conn takes my ref on peer */
-	peer->ksnp_last_alive = cfs_time_current();
-	peer->ksnp_send_keepalive = 0;
-	peer->ksnp_error = 0;
-
-	sched = ksocknal_choose_scheduler_locked(cpt);
-	sched->kss_nconns++;
-	conn->ksnc_scheduler = sched;
-
-	conn->ksnc_tx_last_post = cfs_time_current();
-	/* Set the deadline for the outgoing HELLO to drain */
-	conn->ksnc_tx_bufnob = sock->sk->sk_wmem_queued;
-	conn->ksnc_tx_deadline = cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-	mb();   /* order with adding to peer's conn list */
-
-	list_add(&conn->ksnc_list, &peer->ksnp_conns);
-	ksocknal_conn_addref(conn);
-
-	ksocknal_new_packet(conn, 0);
-
-	conn->ksnc_zc_capable = ksocknal_lib_zc_capable(conn);
-
-	/* Take packets blocking for this connection. */
-	list_for_each_entry_safe(tx, txtmp, &peer->ksnp_tx_queue, tx_list) {
-		if (conn->ksnc_proto->pro_match_tx(conn, tx, tx->tx_nonblk) == SOCKNAL_MATCH_NO)
-				continue;
-
-		list_del(&tx->tx_list);
-		ksocknal_queue_tx_locked(tx, conn);
-	}
-
-	write_unlock_bh(global_lock);
-
-	/* We've now got a new connection.  Any errors from here on are just
-	 * like "normal" comms errors and we close the connection normally.
-	 * NB (a) we still have to send the reply HELLO for passive
-	 *	connections,
-	 *    (b) normal I/O on the conn is blocked until I setup and call the
-	 *	socket callbacks.
-	 */
-
-	CDEBUG(D_NET, "New conn %s p %d.x %pI4h -> %pI4h/%d incarnation:%lld sched[%d:%d]\n",
-	       libcfs_id2str(peerid), conn->ksnc_proto->pro_version,
-	       &conn->ksnc_myipaddr, &conn->ksnc_ipaddr,
-	       conn->ksnc_port, incarnation, cpt,
-	       (int)(sched - &sched->kss_info->ksi_scheds[0]));
-
-	if (active) {
-		/* additional routes after interface exchange? */
-		ksocknal_create_routes(peer, conn->ksnc_port,
-				       hello->kshm_ips, hello->kshm_nips);
-	} else {
-		hello->kshm_nips = ksocknal_select_ips(peer, hello->kshm_ips,
-						       hello->kshm_nips);
-		rc = ksocknal_send_hello(ni, conn, peerid.nid, hello);
-	}
-
-	LIBCFS_FREE(hello, offsetof(ksock_hello_msg_t,
-				    kshm_ips[LNET_MAX_INTERFACES]));
-
-	/* setup the socket AFTER I've received hello (it disables
-	 * SO_LINGER).  I might call back to the acceptor who may want
-	 * to send a protocol version response and then close the
-	 * socket; this ensures the socket only tears down after the
-	 * response has been sent. */
-	if (rc == 0)
-		rc = ksocknal_lib_setup_sock(sock);
-
-	write_lock_bh(global_lock);
-
-	/* NB my callbacks block while I hold ksnd_global_lock */
-	ksocknal_lib_set_callback(sock, conn);
-
-	if (!active)
-		peer->ksnp_accepting--;
-
-	write_unlock_bh(global_lock);
-
-	if (rc != 0) {
-		write_lock_bh(global_lock);
-		if (!conn->ksnc_closing) {
-			/* could be closed by another thread */
-			ksocknal_close_conn_locked(conn, rc);
-		}
-		write_unlock_bh(global_lock);
-	} else if (ksocknal_connsock_addref(conn) == 0) {
-		/* Allow I/O to proceed. */
-		ksocknal_read_callback(conn);
-		ksocknal_write_callback(conn);
-		ksocknal_connsock_decref(conn);
-	}
-
-	ksocknal_connsock_decref(conn);
-	ksocknal_conn_decref(conn);
-	return rc;
-
- failed_2:
-	if (!peer->ksnp_closing &&
-	    list_empty(&peer->ksnp_conns) &&
-	    list_empty(&peer->ksnp_routes)) {
-		list_add(&zombies, &peer->ksnp_tx_queue);
-		list_del_init(&peer->ksnp_tx_queue);
-		ksocknal_unlink_peer_locked(peer);
-	}
-
-	write_unlock_bh(global_lock);
-
-	if (warn != NULL) {
-		if (rc < 0)
-			CERROR("Not creating conn %s type %d: %s\n",
-			       libcfs_id2str(peerid), conn->ksnc_type, warn);
-		else
-			CDEBUG(D_NET, "Not creating conn %s type %d: %s\n",
-			      libcfs_id2str(peerid), conn->ksnc_type, warn);
-	}
-
-	if (!active) {
-		if (rc > 0) {
-			/* Request retry by replying with CONN_NONE
-			 * ksnc_proto has been set already */
-			conn->ksnc_type = SOCKLND_CONN_NONE;
-			hello->kshm_nips = 0;
-			ksocknal_send_hello(ni, conn, peerid.nid, hello);
-		}
-
-		write_lock_bh(global_lock);
-		peer->ksnp_accepting--;
-		write_unlock_bh(global_lock);
-	}
-
-	ksocknal_txlist_done(ni, &zombies, 1);
-	ksocknal_peer_decref(peer);
-
-failed_1:
-	if (hello != NULL)
-		LIBCFS_FREE(hello, offsetof(ksock_hello_msg_t,
-					    kshm_ips[LNET_MAX_INTERFACES]));
-
-	LIBCFS_FREE(conn, sizeof(*conn));
-
-failed_0:
-	sock_release(sock);
-	return rc;
-}
-
-void
-ksocknal_close_conn_locked(ksock_conn_t *conn, int error)
-{
-	/* This just does the immmediate housekeeping, and queues the
-	 * connection for the reaper to terminate.
-	 * Caller holds ksnd_global_lock exclusively in irq context */
-	ksock_peer_t *peer = conn->ksnc_peer;
-	ksock_route_t *route;
-	ksock_conn_t *conn2;
-	struct list_head *tmp;
-
-	LASSERT(peer->ksnp_error == 0);
-	LASSERT(!conn->ksnc_closing);
-	conn->ksnc_closing = 1;
-
-	/* ksnd_deathrow_conns takes over peer's ref */
-	list_del(&conn->ksnc_list);
-
-	route = conn->ksnc_route;
-	if (route != NULL) {
-		/* dissociate conn from route... */
-		LASSERT(!route->ksnr_deleted);
-		LASSERT((route->ksnr_connected & (1 << conn->ksnc_type)) != 0);
-
-		conn2 = NULL;
-		list_for_each(tmp, &peer->ksnp_conns) {
-			conn2 = list_entry(tmp, ksock_conn_t, ksnc_list);
-
-			if (conn2->ksnc_route == route &&
-			    conn2->ksnc_type == conn->ksnc_type)
-				break;
-
-			conn2 = NULL;
-		}
-		if (conn2 == NULL)
-			route->ksnr_connected &= ~(1 << conn->ksnc_type);
-
-		conn->ksnc_route = NULL;
-
-#if 0	   /* irrelevant with only eager routes */
-		/* make route least favourite */
-		list_del(&route->ksnr_list);
-		list_add_tail(&route->ksnr_list, &peer->ksnp_routes);
-#endif
-		ksocknal_route_decref(route);     /* drop conn's ref on route */
-	}
-
-	if (list_empty(&peer->ksnp_conns)) {
-		/* No more connections to this peer */
-
-		if (!list_empty(&peer->ksnp_tx_queue)) {
-			ksock_tx_t *tx;
-
-			LASSERT(conn->ksnc_proto == &ksocknal_protocol_v3x);
-
-			/* throw them to the last connection...,
-			 * these TXs will be send to /dev/null by scheduler */
-			list_for_each_entry(tx, &peer->ksnp_tx_queue,
-						tx_list)
-				ksocknal_tx_prep(conn, tx);
-
-			spin_lock_bh(&conn->ksnc_scheduler->kss_lock);
-			list_splice_init(&peer->ksnp_tx_queue,
-					     &conn->ksnc_tx_queue);
-			spin_unlock_bh(&conn->ksnc_scheduler->kss_lock);
-		}
-
-		peer->ksnp_proto = NULL;	/* renegotiate protocol version */
-		peer->ksnp_error = error;       /* stash last conn close reason */
-
-		if (list_empty(&peer->ksnp_routes)) {
-			/* I've just closed last conn belonging to a
-			 * peer with no routes to it */
-			ksocknal_unlink_peer_locked(peer);
-		}
-	}
-
-	spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-	list_add_tail(&conn->ksnc_list,
-			  &ksocknal_data.ksnd_deathrow_conns);
-	wake_up(&ksocknal_data.ksnd_reaper_waitq);
-
-	spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
-}
-
-void
-ksocknal_peer_failed(ksock_peer_t *peer)
-{
-	int notify = 0;
-	unsigned long last_alive = 0;
-
-	/* There has been a connection failure or comms error; but I'll only
-	 * tell LNET I think the peer is dead if it's to another kernel and
-	 * there are no connections or connection attempts in existence. */
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	if ((peer->ksnp_id.pid & LNET_PID_USERFLAG) == 0 &&
-	    list_empty(&peer->ksnp_conns) &&
-	    peer->ksnp_accepting == 0 &&
-	    ksocknal_find_connecting_route_locked(peer) == NULL) {
-		notify = 1;
-		last_alive = peer->ksnp_last_alive;
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-
-	if (notify)
-		lnet_notify(peer->ksnp_ni, peer->ksnp_id.nid, 0,
-			     last_alive);
-}
-
-void
-ksocknal_finalize_zcreq(ksock_conn_t *conn)
-{
-	ksock_peer_t *peer = conn->ksnc_peer;
-	ksock_tx_t *tx;
-	ksock_tx_t *tmp;
-	LIST_HEAD(zlist);
-
-	/* NB safe to finalize TXs because closing of socket will
-	 * abort all buffered data */
-	LASSERT(conn->ksnc_sock == NULL);
-
-	spin_lock(&peer->ksnp_lock);
-
-	list_for_each_entry_safe(tx, tmp, &peer->ksnp_zc_req_list, tx_zc_list) {
-		if (tx->tx_conn != conn)
-			continue;
-
-		LASSERT(tx->tx_msg.ksm_zc_cookies[0] != 0);
-
-		tx->tx_msg.ksm_zc_cookies[0] = 0;
-		tx->tx_zc_aborted = 1; /* mark it as not-acked */
-		list_del(&tx->tx_zc_list);
-		list_add(&tx->tx_zc_list, &zlist);
-	}
-
-	spin_unlock(&peer->ksnp_lock);
-
-	while (!list_empty(&zlist)) {
-		tx = list_entry(zlist.next, ksock_tx_t, tx_zc_list);
-
-		list_del(&tx->tx_zc_list);
-		ksocknal_tx_decref(tx);
-	}
-}
-
-void
-ksocknal_terminate_conn(ksock_conn_t *conn)
-{
-	/* This gets called by the reaper (guaranteed thread context) to
-	 * disengage the socket from its callbacks and close it.
-	 * ksnc_refcount will eventually hit zero, and then the reaper will
-	 * destroy it. */
-	ksock_peer_t *peer = conn->ksnc_peer;
-	ksock_sched_t *sched = conn->ksnc_scheduler;
-	int failed = 0;
-
-	LASSERT(conn->ksnc_closing);
-
-	/* wake up the scheduler to "send" all remaining packets to /dev/null */
-	spin_lock_bh(&sched->kss_lock);
-
-	/* a closing conn is always ready to tx */
-	conn->ksnc_tx_ready = 1;
-
-	if (!conn->ksnc_tx_scheduled &&
-	    !list_empty(&conn->ksnc_tx_queue)) {
-		list_add_tail(&conn->ksnc_tx_list,
-			       &sched->kss_tx_conns);
-		conn->ksnc_tx_scheduled = 1;
-		/* extra ref for scheduler */
-		ksocknal_conn_addref(conn);
-
-		wake_up(&sched->kss_waitq);
-	}
-
-	spin_unlock_bh(&sched->kss_lock);
-
-	/* serialise with callbacks */
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	ksocknal_lib_reset_callback(conn->ksnc_sock, conn);
-
-	/* OK, so this conn may not be completely disengaged from its
-	 * scheduler yet, but it _has_ committed to terminate... */
-	conn->ksnc_scheduler->kss_nconns--;
-
-	if (peer->ksnp_error != 0) {
-		/* peer's last conn closed in error */
-		LASSERT(list_empty(&peer->ksnp_conns));
-		failed = 1;
-		peer->ksnp_error = 0;     /* avoid multiple notifications */
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	if (failed)
-		ksocknal_peer_failed(peer);
-
-	/* The socket is closed on the final put; either here, or in
-	 * ksocknal_{send,recv}msg().  Since we set up the linger2 option
-	 * when the connection was established, this will close the socket
-	 * immediately, aborting anything buffered in it. Any hung
-	 * zero-copy transmits will therefore complete in finite time. */
-	ksocknal_connsock_decref(conn);
-}
-
-void
-ksocknal_queue_zombie_conn(ksock_conn_t *conn)
-{
-	/* Queue the conn for the reaper to destroy */
-
-	LASSERT(atomic_read(&conn->ksnc_conn_refcount) == 0);
-	spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-	list_add_tail(&conn->ksnc_list, &ksocknal_data.ksnd_zombie_conns);
-	wake_up(&ksocknal_data.ksnd_reaper_waitq);
-
-	spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
-}
-
-void
-ksocknal_destroy_conn(ksock_conn_t *conn)
-{
-	unsigned long last_rcv;
-
-	/* Final coup-de-grace of the reaper */
-	CDEBUG(D_NET, "connection %p\n", conn);
-
-	LASSERT(atomic_read(&conn->ksnc_conn_refcount) == 0);
-	LASSERT(atomic_read(&conn->ksnc_sock_refcount) == 0);
-	LASSERT(conn->ksnc_sock == NULL);
-	LASSERT(conn->ksnc_route == NULL);
-	LASSERT(!conn->ksnc_tx_scheduled);
-	LASSERT(!conn->ksnc_rx_scheduled);
-	LASSERT(list_empty(&conn->ksnc_tx_queue));
-
-	/* complete current receive if any */
-	switch (conn->ksnc_rx_state) {
-	case SOCKNAL_RX_LNET_PAYLOAD:
-		last_rcv = conn->ksnc_rx_deadline -
-			   cfs_time_seconds(*ksocknal_tunables.ksnd_timeout);
-		CERROR("Completing partial receive from %s[%d], ip %pI4h:%d, with error, wanted: %d, left: %d, last alive is %ld secs ago\n",
-		       libcfs_id2str(conn->ksnc_peer->ksnp_id), conn->ksnc_type,
-		       &conn->ksnc_ipaddr, conn->ksnc_port,
-		       conn->ksnc_rx_nob_wanted, conn->ksnc_rx_nob_left,
-		       cfs_duration_sec(cfs_time_sub(cfs_time_current(),
-						     last_rcv)));
-		lnet_finalize(conn->ksnc_peer->ksnp_ni,
-			       conn->ksnc_cookie, -EIO);
-		break;
-	case SOCKNAL_RX_LNET_HEADER:
-		if (conn->ksnc_rx_started)
-			CERROR("Incomplete receive of lnet header from %s, ip %pI4h:%d, with error, protocol: %d.x.\n",
-			       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-			       &conn->ksnc_ipaddr, conn->ksnc_port,
-			       conn->ksnc_proto->pro_version);
-		break;
-	case SOCKNAL_RX_KSM_HEADER:
-		if (conn->ksnc_rx_started)
-			CERROR("Incomplete receive of ksock message from %s, ip %pI4h:%d, with error, protocol: %d.x.\n",
-			       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-			       &conn->ksnc_ipaddr, conn->ksnc_port,
-			       conn->ksnc_proto->pro_version);
-		break;
-	case SOCKNAL_RX_SLOP:
-		if (conn->ksnc_rx_started)
-			CERROR("Incomplete receive of slops from %s, ip %pI4h:%d, with error\n",
-			       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-			       &conn->ksnc_ipaddr, conn->ksnc_port);
-	       break;
-	default:
-		LBUG();
-		break;
-	}
-
-	ksocknal_peer_decref(conn->ksnc_peer);
-
-	LIBCFS_FREE(conn, sizeof(*conn));
-}
-
-int
-ksocknal_close_peer_conns_locked(ksock_peer_t *peer, __u32 ipaddr, int why)
-{
-	ksock_conn_t *conn;
-	struct list_head *ctmp;
-	struct list_head *cnxt;
-	int count = 0;
-
-	list_for_each_safe(ctmp, cnxt, &peer->ksnp_conns) {
-		conn = list_entry(ctmp, ksock_conn_t, ksnc_list);
-
-		if (ipaddr == 0 ||
-		    conn->ksnc_ipaddr == ipaddr) {
-			count++;
-			ksocknal_close_conn_locked(conn, why);
-		}
-	}
-
-	return count;
-}
-
-int
-ksocknal_close_conn_and_siblings(ksock_conn_t *conn, int why)
-{
-	ksock_peer_t *peer = conn->ksnc_peer;
-	__u32 ipaddr = conn->ksnc_ipaddr;
-	int count;
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	count = ksocknal_close_peer_conns_locked(peer, ipaddr, why);
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	return count;
-}
-
-int
-ksocknal_close_matching_conns(lnet_process_id_t id, __u32 ipaddr)
-{
-	ksock_peer_t *peer;
-	struct list_head *ptmp;
-	struct list_head *pnxt;
-	int lo;
-	int hi;
-	int i;
-	int count = 0;
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	if (id.nid != LNET_NID_ANY)
-		lo = hi = (int)(ksocknal_nid2peerlist(id.nid) - ksocknal_data.ksnd_peers);
-	else {
-		lo = 0;
-		hi = ksocknal_data.ksnd_peer_hash_size - 1;
-	}
-
-	for (i = lo; i <= hi; i++) {
-		list_for_each_safe(ptmp, pnxt,
-					&ksocknal_data.ksnd_peers[i]) {
-
-			peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
-
-			if (!((id.nid == LNET_NID_ANY || id.nid == peer->ksnp_id.nid) &&
-			      (id.pid == LNET_PID_ANY || id.pid == peer->ksnp_id.pid)))
-				continue;
-
-			count += ksocknal_close_peer_conns_locked(peer, ipaddr, 0);
-		}
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	/* wildcards always succeed */
-	if (id.nid == LNET_NID_ANY || id.pid == LNET_PID_ANY || ipaddr == 0)
-		return 0;
-
-	if (count == 0)
-		return -ENOENT;
-	else
-		return 0;
-}
-
-void
-ksocknal_notify(lnet_ni_t *ni, lnet_nid_t gw_nid, int alive)
-{
-	/* The router is telling me she's been notified of a change in
-	 * gateway state.... */
-	lnet_process_id_t id = {0};
-
-	id.nid = gw_nid;
-	id.pid = LNET_PID_ANY;
-
-	CDEBUG(D_NET, "gw %s %s\n", libcfs_nid2str(gw_nid),
-		alive ? "up" : "down");
-
-	if (!alive) {
-		/* If the gateway crashed, close all open connections... */
-		ksocknal_close_matching_conns(id, 0);
-		return;
-	}
-
-	/* ...otherwise do nothing.  We can only establish new connections
-	 * if we have autroutes, and these connect on demand. */
-}
-
-void
-ksocknal_query(lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
-{
-	int connect = 1;
-	unsigned long last_alive = 0;
-	unsigned long now = cfs_time_current();
-	ksock_peer_t *peer = NULL;
-	rwlock_t *glock = &ksocknal_data.ksnd_global_lock;
-	lnet_process_id_t id = {.nid = nid, .pid = LUSTRE_SRV_LNET_PID};
-
-	read_lock(glock);
-
-	peer = ksocknal_find_peer_locked(ni, id);
-	if (peer != NULL) {
-		struct list_head *tmp;
-		ksock_conn_t *conn;
-		int bufnob;
-
-		list_for_each(tmp, &peer->ksnp_conns) {
-			conn = list_entry(tmp, ksock_conn_t, ksnc_list);
-			bufnob = conn->ksnc_sock->sk->sk_wmem_queued;
-
-			if (bufnob < conn->ksnc_tx_bufnob) {
-				/* something got ACKed */
-				conn->ksnc_tx_deadline =
-					cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-				peer->ksnp_last_alive = now;
-				conn->ksnc_tx_bufnob = bufnob;
-			}
-		}
-
-		last_alive = peer->ksnp_last_alive;
-		if (ksocknal_find_connectable_route_locked(peer) == NULL)
-			connect = 0;
-	}
-
-	read_unlock(glock);
-
-	if (last_alive != 0)
-		*when = last_alive;
-
-	CDEBUG(D_NET, "Peer %s %p, alive %ld secs ago, connect %d\n",
-	       libcfs_nid2str(nid), peer,
-	       last_alive ? cfs_duration_sec(now - last_alive) : -1,
-	       connect);
-
-	if (!connect)
-		return;
-
-	ksocknal_add_peer(ni, id, LNET_NIDADDR(nid), lnet_acceptor_port());
-
-	write_lock_bh(glock);
-
-	peer = ksocknal_find_peer_locked(ni, id);
-	if (peer != NULL)
-		ksocknal_launch_all_connections_locked(peer);
-
-	write_unlock_bh(glock);
-	return;
-}
-
-static void
-ksocknal_push_peer(ksock_peer_t *peer)
-{
-	int index;
-	int i;
-	struct list_head *tmp;
-	ksock_conn_t *conn;
-
-	for (index = 0; ; index++) {
-		read_lock(&ksocknal_data.ksnd_global_lock);
-
-		i = 0;
-		conn = NULL;
-
-		list_for_each(tmp, &peer->ksnp_conns) {
-			if (i++ == index) {
-				conn = list_entry(tmp, ksock_conn_t,
-						       ksnc_list);
-				ksocknal_conn_addref(conn);
-				break;
-			}
-		}
-
-		read_unlock(&ksocknal_data.ksnd_global_lock);
-
-		if (conn == NULL)
-			break;
-
-		ksocknal_lib_push_conn(conn);
-		ksocknal_conn_decref(conn);
-	}
-}
-
-static int
-ksocknal_push(lnet_ni_t *ni, lnet_process_id_t id)
-{
-	ksock_peer_t *peer;
-	struct list_head *tmp;
-	int index;
-	int i;
-	int j;
-	int rc = -ENOENT;
-
-	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-		for (j = 0; ; j++) {
-			read_lock(&ksocknal_data.ksnd_global_lock);
-
-			index = 0;
-			peer = NULL;
-
-			list_for_each(tmp, &ksocknal_data.ksnd_peers[i]) {
-				peer = list_entry(tmp, ksock_peer_t,
-						      ksnp_list);
-
-				if (!((id.nid == LNET_NID_ANY ||
-				       id.nid == peer->ksnp_id.nid) &&
-				      (id.pid == LNET_PID_ANY ||
-				       id.pid == peer->ksnp_id.pid))) {
-					peer = NULL;
-					continue;
-				}
-
-				if (index++ == j) {
-					ksocknal_peer_addref(peer);
-					break;
-				}
-			}
-
-			read_unlock(&ksocknal_data.ksnd_global_lock);
-
-			if (peer != NULL) {
-				rc = 0;
-				ksocknal_push_peer(peer);
-				ksocknal_peer_decref(peer);
-			}
-		}
-
-	}
-
-	return rc;
-}
-
-static int
-ksocknal_add_interface(lnet_ni_t *ni, __u32 ipaddress, __u32 netmask)
-{
-	ksock_net_t *net = ni->ni_data;
-	ksock_interface_t *iface;
-	int rc;
-	int i;
-	int j;
-	struct list_head *ptmp;
-	ksock_peer_t *peer;
-	struct list_head *rtmp;
-	ksock_route_t *route;
-
-	if (ipaddress == 0 ||
-	    netmask == 0)
-		return -EINVAL;
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	iface = ksocknal_ip2iface(ni, ipaddress);
-	if (iface != NULL) {
-		/* silently ignore dups */
-		rc = 0;
-	} else if (net->ksnn_ninterfaces == LNET_MAX_INTERFACES) {
-		rc = -ENOSPC;
-	} else {
-		iface = &net->ksnn_interfaces[net->ksnn_ninterfaces++];
-
-		iface->ksni_ipaddr = ipaddress;
-		iface->ksni_netmask = netmask;
-		iface->ksni_nroutes = 0;
-		iface->ksni_npeers = 0;
-
-		for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-			list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
-				peer = list_entry(ptmp, ksock_peer_t,
-						      ksnp_list);
-
-				for (j = 0; j < peer->ksnp_n_passive_ips; j++)
-					if (peer->ksnp_passive_ips[j] == ipaddress)
-						iface->ksni_npeers++;
-
-				list_for_each(rtmp, &peer->ksnp_routes) {
-					route = list_entry(rtmp,
-							       ksock_route_t,
-							       ksnr_list);
-
-					if (route->ksnr_myipaddr == ipaddress)
-						iface->ksni_nroutes++;
-				}
-			}
-		}
-
-		rc = 0;
-		/* NB only new connections will pay attention to the new interface! */
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	return rc;
-}
-
-static void
-ksocknal_peer_del_interface_locked(ksock_peer_t *peer, __u32 ipaddr)
-{
-	struct list_head *tmp;
-	struct list_head *nxt;
-	ksock_route_t *route;
-	ksock_conn_t *conn;
-	int i;
-	int j;
-
-	for (i = 0; i < peer->ksnp_n_passive_ips; i++)
-		if (peer->ksnp_passive_ips[i] == ipaddr) {
-			for (j = i+1; j < peer->ksnp_n_passive_ips; j++)
-				peer->ksnp_passive_ips[j-1] =
-					peer->ksnp_passive_ips[j];
-			peer->ksnp_n_passive_ips--;
-			break;
-		}
-
-	list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
-		route = list_entry(tmp, ksock_route_t, ksnr_list);
-
-		if (route->ksnr_myipaddr != ipaddr)
-			continue;
-
-		if (route->ksnr_share_count != 0) {
-			/* Manually created; keep, but unbind */
-			route->ksnr_myipaddr = 0;
-		} else {
-			ksocknal_del_route_locked(route);
-		}
-	}
-
-	list_for_each_safe(tmp, nxt, &peer->ksnp_conns) {
-		conn = list_entry(tmp, ksock_conn_t, ksnc_list);
-
-		if (conn->ksnc_myipaddr == ipaddr)
-			ksocknal_close_conn_locked(conn, 0);
-	}
-}
-
-static int
-ksocknal_del_interface(lnet_ni_t *ni, __u32 ipaddress)
-{
-	ksock_net_t *net = ni->ni_data;
-	int rc = -ENOENT;
-	struct list_head *tmp;
-	struct list_head *nxt;
-	ksock_peer_t *peer;
-	__u32 this_ip;
-	int i;
-	int j;
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	for (i = 0; i < net->ksnn_ninterfaces; i++) {
-		this_ip = net->ksnn_interfaces[i].ksni_ipaddr;
-
-		if (!(ipaddress == 0 ||
-		      ipaddress == this_ip))
-			continue;
-
-		rc = 0;
-
-		for (j = i+1; j < net->ksnn_ninterfaces; j++)
-			net->ksnn_interfaces[j-1] =
-				net->ksnn_interfaces[j];
-
-		net->ksnn_ninterfaces--;
-
-		for (j = 0; j < ksocknal_data.ksnd_peer_hash_size; j++) {
-			list_for_each_safe(tmp, nxt,
-					       &ksocknal_data.ksnd_peers[j]) {
-				peer = list_entry(tmp, ksock_peer_t,
-						      ksnp_list);
-
-				if (peer->ksnp_ni != ni)
-					continue;
-
-				ksocknal_peer_del_interface_locked(peer, this_ip);
-			}
-		}
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	return rc;
-}
-
-int
-ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
-{
-	lnet_process_id_t id = {0};
-	struct libcfs_ioctl_data *data = arg;
-	int rc;
-
-	switch (cmd) {
-	case IOC_LIBCFS_GET_INTERFACE: {
-		ksock_net_t       *net = ni->ni_data;
-		ksock_interface_t *iface;
-
-		read_lock(&ksocknal_data.ksnd_global_lock);
-
-		if (data->ioc_count >= (__u32)net->ksnn_ninterfaces) {
-			rc = -ENOENT;
-		} else {
-			rc = 0;
-			iface = &net->ksnn_interfaces[data->ioc_count];
-
-			data->ioc_u32[0] = iface->ksni_ipaddr;
-			data->ioc_u32[1] = iface->ksni_netmask;
-			data->ioc_u32[2] = iface->ksni_npeers;
-			data->ioc_u32[3] = iface->ksni_nroutes;
-		}
-
-		read_unlock(&ksocknal_data.ksnd_global_lock);
-		return rc;
-	}
-
-	case IOC_LIBCFS_ADD_INTERFACE:
-		return ksocknal_add_interface(ni,
-					      data->ioc_u32[0], /* IP address */
-					      data->ioc_u32[1]); /* net mask */
-
-	case IOC_LIBCFS_DEL_INTERFACE:
-		return ksocknal_del_interface(ni,
-					      data->ioc_u32[0]); /* IP address */
-
-	case IOC_LIBCFS_GET_PEER: {
-		__u32 myip = 0;
-		__u32 ip = 0;
-		int port = 0;
-		int conn_count = 0;
-		int share_count = 0;
-
-		rc = ksocknal_get_peer_info(ni, data->ioc_count,
-					    &id, &myip, &ip, &port,
-					    &conn_count,  &share_count);
-		if (rc != 0)
-			return rc;
-
-		data->ioc_nid    = id.nid;
-		data->ioc_count  = share_count;
-		data->ioc_u32[0] = ip;
-		data->ioc_u32[1] = port;
-		data->ioc_u32[2] = myip;
-		data->ioc_u32[3] = conn_count;
-		data->ioc_u32[4] = id.pid;
-		return 0;
-	}
-
-	case IOC_LIBCFS_ADD_PEER:
-		id.nid = data->ioc_nid;
-		id.pid = LUSTRE_SRV_LNET_PID;
-		return ksocknal_add_peer(ni, id,
-					  data->ioc_u32[0], /* IP */
-					  data->ioc_u32[1]); /* port */
-
-	case IOC_LIBCFS_DEL_PEER:
-		id.nid = data->ioc_nid;
-		id.pid = LNET_PID_ANY;
-		return ksocknal_del_peer(ni, id,
-					  data->ioc_u32[0]); /* IP */
-
-	case IOC_LIBCFS_GET_CONN: {
-		int txmem;
-		int rxmem;
-		int nagle;
-		ksock_conn_t *conn = ksocknal_get_conn_by_idx(ni, data->ioc_count);
-
-		if (conn == NULL)
-			return -ENOENT;
-
-		ksocknal_lib_get_conn_tunables(conn, &txmem, &rxmem, &nagle);
-
-		data->ioc_count  = txmem;
-		data->ioc_nid    = conn->ksnc_peer->ksnp_id.nid;
-		data->ioc_flags  = nagle;
-		data->ioc_u32[0] = conn->ksnc_ipaddr;
-		data->ioc_u32[1] = conn->ksnc_port;
-		data->ioc_u32[2] = conn->ksnc_myipaddr;
-		data->ioc_u32[3] = conn->ksnc_type;
-		data->ioc_u32[4] = conn->ksnc_scheduler->kss_info->ksi_cpt;
-		data->ioc_u32[5] = rxmem;
-		data->ioc_u32[6] = conn->ksnc_peer->ksnp_id.pid;
-		ksocknal_conn_decref(conn);
-		return 0;
-	}
-
-	case IOC_LIBCFS_CLOSE_CONNECTION:
-		id.nid = data->ioc_nid;
-		id.pid = LNET_PID_ANY;
-		return ksocknal_close_matching_conns(id,
-						      data->ioc_u32[0]);
-
-	case IOC_LIBCFS_REGISTER_MYNID:
-		/* Ignore if this is a noop */
-		if (data->ioc_nid == ni->ni_nid)
-			return 0;
-
-		CERROR("obsolete IOC_LIBCFS_REGISTER_MYNID: %s(%s)\n",
-		       libcfs_nid2str(data->ioc_nid),
-		       libcfs_nid2str(ni->ni_nid));
-		return -EINVAL;
-
-	case IOC_LIBCFS_PUSH_CONNECTION:
-		id.nid = data->ioc_nid;
-		id.pid = LNET_PID_ANY;
-		return ksocknal_push(ni, id);
-
-	default:
-		return -EINVAL;
-	}
-	/* not reached */
-}
-
-static void
-ksocknal_free_buffers(void)
-{
-	LASSERT(atomic_read(&ksocknal_data.ksnd_nactive_txs) == 0);
-
-	if (ksocknal_data.ksnd_sched_info != NULL) {
-		struct ksock_sched_info *info;
-		int i;
-
-		cfs_percpt_for_each(info, i, ksocknal_data.ksnd_sched_info) {
-			if (info->ksi_scheds != NULL) {
-				LIBCFS_FREE(info->ksi_scheds,
-					    info->ksi_nthreads_max *
-					    sizeof(info->ksi_scheds[0]));
-			}
-		}
-		cfs_percpt_free(ksocknal_data.ksnd_sched_info);
-	}
-
-	LIBCFS_FREE(ksocknal_data.ksnd_peers,
-		     sizeof(struct list_head) *
-		     ksocknal_data.ksnd_peer_hash_size);
-
-	spin_lock(&ksocknal_data.ksnd_tx_lock);
-
-	if (!list_empty(&ksocknal_data.ksnd_idle_noop_txs)) {
-		struct list_head zlist;
-		ksock_tx_t *tx;
-
-		list_add(&zlist, &ksocknal_data.ksnd_idle_noop_txs);
-		list_del_init(&ksocknal_data.ksnd_idle_noop_txs);
-		spin_unlock(&ksocknal_data.ksnd_tx_lock);
-
-		while (!list_empty(&zlist)) {
-			tx = list_entry(zlist.next, ksock_tx_t, tx_list);
-			list_del(&tx->tx_list);
-			LIBCFS_FREE(tx, tx->tx_desc_size);
-		}
-	} else {
-		spin_unlock(&ksocknal_data.ksnd_tx_lock);
-	}
-}
-
-static void
-ksocknal_base_shutdown(void)
-{
-	struct ksock_sched_info *info;
-	ksock_sched_t *sched;
-	int i;
-	int j;
-
-	LASSERT(ksocknal_data.ksnd_nnets == 0);
-
-	switch (ksocknal_data.ksnd_init) {
-	default:
-		LASSERT(0);
-
-	case SOCKNAL_INIT_ALL:
-	case SOCKNAL_INIT_DATA:
-		LASSERT(ksocknal_data.ksnd_peers != NULL);
-		for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-			LASSERT(list_empty(&ksocknal_data.ksnd_peers[i]));
-		}
-
-		LASSERT(list_empty(&ksocknal_data.ksnd_nets));
-		LASSERT(list_empty(&ksocknal_data.ksnd_enomem_conns));
-		LASSERT(list_empty(&ksocknal_data.ksnd_zombie_conns));
-		LASSERT(list_empty(&ksocknal_data.ksnd_connd_connreqs));
-		LASSERT(list_empty(&ksocknal_data.ksnd_connd_routes));
-
-		if (ksocknal_data.ksnd_sched_info != NULL) {
-			cfs_percpt_for_each(info, i,
-					    ksocknal_data.ksnd_sched_info) {
-				if (info->ksi_scheds == NULL)
-					continue;
-
-				for (j = 0; j < info->ksi_nthreads_max; j++) {
-
-					sched = &info->ksi_scheds[j];
-					LASSERT(list_empty(
-						&sched->kss_tx_conns));
-					LASSERT(list_empty(
-						&sched->kss_rx_conns));
-					LASSERT(list_empty(
-						&sched->kss_zombie_noop_txs));
-					LASSERT(sched->kss_nconns == 0);
-				}
-			}
-		}
-
-		/* flag threads to terminate; wake and wait for them to die */
-		ksocknal_data.ksnd_shuttingdown = 1;
-		wake_up_all(&ksocknal_data.ksnd_connd_waitq);
-		wake_up_all(&ksocknal_data.ksnd_reaper_waitq);
-
-		if (ksocknal_data.ksnd_sched_info != NULL) {
-			cfs_percpt_for_each(info, i,
-					    ksocknal_data.ksnd_sched_info) {
-				if (info->ksi_scheds == NULL)
-					continue;
-
-				for (j = 0; j < info->ksi_nthreads_max; j++) {
-					sched = &info->ksi_scheds[j];
-					wake_up_all(&sched->kss_waitq);
-				}
-			}
-		}
-
-		i = 4;
-		read_lock(&ksocknal_data.ksnd_global_lock);
-		while (ksocknal_data.ksnd_nthreads != 0) {
-			i++;
-			CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
-			       "waiting for %d threads to terminate\n",
-				ksocknal_data.ksnd_nthreads);
-			read_unlock(&ksocknal_data.ksnd_global_lock);
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(cfs_time_seconds(1));
-			read_lock(&ksocknal_data.ksnd_global_lock);
-		}
-		read_unlock(&ksocknal_data.ksnd_global_lock);
-
-		ksocknal_free_buffers();
-
-		ksocknal_data.ksnd_init = SOCKNAL_INIT_NOTHING;
-		break;
-	}
-
-	module_put(THIS_MODULE);
-}
-
-static __u64
-ksocknal_new_incarnation(void)
-{
-
-	/* The incarnation number is the time this module loaded and it
-	 * identifies this particular instance of the socknal.
-	 */
-	return ktime_get_ns();
-}
-
-static int
-ksocknal_base_startup(void)
-{
-	struct ksock_sched_info	*info;
-	int rc;
-	int i;
-
-	LASSERT(ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING);
-	LASSERT(ksocknal_data.ksnd_nnets == 0);
-
-	memset(&ksocknal_data, 0, sizeof(ksocknal_data)); /* zero pointers */
-
-	ksocknal_data.ksnd_peer_hash_size = SOCKNAL_PEER_HASH_SIZE;
-	LIBCFS_ALLOC(ksocknal_data.ksnd_peers,
-		      sizeof(struct list_head) *
-		      ksocknal_data.ksnd_peer_hash_size);
-	if (ksocknal_data.ksnd_peers == NULL)
-		return -ENOMEM;
-
-	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++)
-		INIT_LIST_HEAD(&ksocknal_data.ksnd_peers[i]);
-
-	rwlock_init(&ksocknal_data.ksnd_global_lock);
-	INIT_LIST_HEAD(&ksocknal_data.ksnd_nets);
-
-	spin_lock_init(&ksocknal_data.ksnd_reaper_lock);
-	INIT_LIST_HEAD(&ksocknal_data.ksnd_enomem_conns);
-	INIT_LIST_HEAD(&ksocknal_data.ksnd_zombie_conns);
-	INIT_LIST_HEAD(&ksocknal_data.ksnd_deathrow_conns);
-	init_waitqueue_head(&ksocknal_data.ksnd_reaper_waitq);
-
-	spin_lock_init(&ksocknal_data.ksnd_connd_lock);
-	INIT_LIST_HEAD(&ksocknal_data.ksnd_connd_connreqs);
-	INIT_LIST_HEAD(&ksocknal_data.ksnd_connd_routes);
-	init_waitqueue_head(&ksocknal_data.ksnd_connd_waitq);
-
-	spin_lock_init(&ksocknal_data.ksnd_tx_lock);
-	INIT_LIST_HEAD(&ksocknal_data.ksnd_idle_noop_txs);
-
-	/* NB memset above zeros whole of ksocknal_data */
-
-	/* flag lists/ptrs/locks initialised */
-	ksocknal_data.ksnd_init = SOCKNAL_INIT_DATA;
-	try_module_get(THIS_MODULE);
-
-	ksocknal_data.ksnd_sched_info = cfs_percpt_alloc(lnet_cpt_table(),
-							 sizeof(*info));
-	if (ksocknal_data.ksnd_sched_info == NULL)
-		goto failed;
-
-	cfs_percpt_for_each(info, i, ksocknal_data.ksnd_sched_info) {
-		ksock_sched_t *sched;
-		int nthrs;
-
-		nthrs = cfs_cpt_weight(lnet_cpt_table(), i);
-		if (*ksocknal_tunables.ksnd_nscheds > 0) {
-			nthrs = min(nthrs, *ksocknal_tunables.ksnd_nscheds);
-		} else {
-			/* max to half of CPUs, assume another half should be
-			 * reserved for upper layer modules */
-			nthrs = min(max(SOCKNAL_NSCHEDS, nthrs >> 1), nthrs);
-		}
-
-		info->ksi_nthreads_max = nthrs;
-		info->ksi_cpt = i;
-
-		LIBCFS_CPT_ALLOC(info->ksi_scheds, lnet_cpt_table(), i,
-				 info->ksi_nthreads_max * sizeof(*sched));
-		if (info->ksi_scheds == NULL)
-			goto failed;
-
-		for (; nthrs > 0; nthrs--) {
-			sched = &info->ksi_scheds[nthrs - 1];
-
-			sched->kss_info = info;
-			spin_lock_init(&sched->kss_lock);
-			INIT_LIST_HEAD(&sched->kss_rx_conns);
-			INIT_LIST_HEAD(&sched->kss_tx_conns);
-			INIT_LIST_HEAD(&sched->kss_zombie_noop_txs);
-			init_waitqueue_head(&sched->kss_waitq);
-		}
-	}
-
-	ksocknal_data.ksnd_connd_starting       = 0;
-	ksocknal_data.ksnd_connd_failed_stamp   = 0;
-	ksocknal_data.ksnd_connd_starting_stamp = get_seconds();
-	/* must have at least 2 connds to remain responsive to accepts while
-	 * connecting */
-	if (*ksocknal_tunables.ksnd_nconnds < SOCKNAL_CONND_RESV + 1)
-		*ksocknal_tunables.ksnd_nconnds = SOCKNAL_CONND_RESV + 1;
-
-	if (*ksocknal_tunables.ksnd_nconnds_max <
-	    *ksocknal_tunables.ksnd_nconnds) {
-		ksocknal_tunables.ksnd_nconnds_max =
-			ksocknal_tunables.ksnd_nconnds;
-	}
-
-	for (i = 0; i < *ksocknal_tunables.ksnd_nconnds; i++) {
-		char name[16];
-		spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
-		ksocknal_data.ksnd_connd_starting++;
-		spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
-
-
-		snprintf(name, sizeof(name), "socknal_cd%02d", i);
-		rc = ksocknal_thread_start(ksocknal_connd,
-					   (void *)((ulong_ptr_t)i), name);
-		if (rc != 0) {
-			spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
-			ksocknal_data.ksnd_connd_starting--;
-			spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
-			CERROR("Can't spawn socknal connd: %d\n", rc);
-			goto failed;
-		}
-	}
-
-	rc = ksocknal_thread_start(ksocknal_reaper, NULL, "socknal_reaper");
-	if (rc != 0) {
-		CERROR("Can't spawn socknal reaper: %d\n", rc);
-		goto failed;
-	}
-
-	/* flag everything initialised */
-	ksocknal_data.ksnd_init = SOCKNAL_INIT_ALL;
-
-	return 0;
-
- failed:
-	ksocknal_base_shutdown();
-	return -ENETDOWN;
-}
-
-static void
-ksocknal_debug_peerhash(lnet_ni_t *ni)
-{
-	ksock_peer_t *peer = NULL;
-	struct list_head *tmp;
-	int i;
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
-		list_for_each(tmp, &ksocknal_data.ksnd_peers[i]) {
-			peer = list_entry(tmp, ksock_peer_t, ksnp_list);
-
-			if (peer->ksnp_ni == ni)
-				break;
-
-			peer = NULL;
-		}
-	}
-
-	if (peer != NULL) {
-		ksock_route_t *route;
-		ksock_conn_t  *conn;
-
-		CWARN("Active peer on shutdown: %s, ref %d, scnt %d, closing %d, accepting %d, err %d, zcookie %llu, txq %d, zc_req %d\n",
-		      libcfs_id2str(peer->ksnp_id),
-		      atomic_read(&peer->ksnp_refcount),
-		      peer->ksnp_sharecount, peer->ksnp_closing,
-		      peer->ksnp_accepting, peer->ksnp_error,
-		      peer->ksnp_zc_next_cookie,
-		      !list_empty(&peer->ksnp_tx_queue),
-		      !list_empty(&peer->ksnp_zc_req_list));
-
-		list_for_each(tmp, &peer->ksnp_routes) {
-			route = list_entry(tmp, ksock_route_t, ksnr_list);
-			CWARN("Route: ref %d, schd %d, conn %d, cnted %d, del %d\n",
-			      atomic_read(&route->ksnr_refcount),
-			      route->ksnr_scheduled, route->ksnr_connecting,
-			      route->ksnr_connected, route->ksnr_deleted);
-		}
-
-		list_for_each(tmp, &peer->ksnp_conns) {
-			conn = list_entry(tmp, ksock_conn_t, ksnc_list);
-			CWARN("Conn: ref %d, sref %d, t %d, c %d\n",
-			       atomic_read(&conn->ksnc_conn_refcount),
-			       atomic_read(&conn->ksnc_sock_refcount),
-			       conn->ksnc_type, conn->ksnc_closing);
-		}
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-	return;
-}
-
-void
-ksocknal_shutdown(lnet_ni_t *ni)
-{
-	ksock_net_t *net = ni->ni_data;
-	int i;
-	lnet_process_id_t anyid = {0};
-
-	anyid.nid = LNET_NID_ANY;
-	anyid.pid = LNET_PID_ANY;
-
-	LASSERT(ksocknal_data.ksnd_init == SOCKNAL_INIT_ALL);
-	LASSERT(ksocknal_data.ksnd_nnets > 0);
-
-	spin_lock_bh(&net->ksnn_lock);
-	net->ksnn_shutdown = 1;		 /* prevent new peers */
-	spin_unlock_bh(&net->ksnn_lock);
-
-	/* Delete all peers */
-	ksocknal_del_peer(ni, anyid, 0);
-
-	/* Wait for all peer state to clean up */
-	i = 2;
-	spin_lock_bh(&net->ksnn_lock);
-	while (net->ksnn_npeers != 0) {
-		spin_unlock_bh(&net->ksnn_lock);
-
-		i++;
-		CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
-		       "waiting for %d peers to disconnect\n",
-		       net->ksnn_npeers);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1));
-
-		ksocknal_debug_peerhash(ni);
-
-		spin_lock_bh(&net->ksnn_lock);
-	}
-	spin_unlock_bh(&net->ksnn_lock);
-
-	for (i = 0; i < net->ksnn_ninterfaces; i++) {
-		LASSERT(net->ksnn_interfaces[i].ksni_npeers == 0);
-		LASSERT(net->ksnn_interfaces[i].ksni_nroutes == 0);
-	}
-
-	list_del(&net->ksnn_list);
-	LIBCFS_FREE(net, sizeof(*net));
-
-	ksocknal_data.ksnd_nnets--;
-	if (ksocknal_data.ksnd_nnets == 0)
-		ksocknal_base_shutdown();
-}
-
-static int
-ksocknal_enumerate_interfaces(ksock_net_t *net)
-{
-	char **names;
-	int i;
-	int j;
-	int rc;
-	int n;
-
-	n = lnet_ipif_enumerate(&names);
-	if (n <= 0) {
-		CERROR("Can't enumerate interfaces: %d\n", n);
-		return n;
-	}
-
-	for (i = j = 0; i < n; i++) {
-		int up;
-		__u32 ip;
-		__u32 mask;
-
-		if (!strcmp(names[i], "lo")) /* skip the loopback IF */
-			continue;
-
-		rc = lnet_ipif_query(names[i], &up, &ip, &mask);
-		if (rc != 0) {
-			CWARN("Can't get interface %s info: %d\n",
-			      names[i], rc);
-			continue;
-		}
-
-		if (!up) {
-			CWARN("Ignoring interface %s (down)\n",
-			      names[i]);
-			continue;
-		}
-
-		if (j == LNET_MAX_INTERFACES) {
-			CWARN("Ignoring interface %s (too many interfaces)\n",
-			      names[i]);
-			continue;
-		}
-
-		net->ksnn_interfaces[j].ksni_ipaddr = ip;
-		net->ksnn_interfaces[j].ksni_netmask = mask;
-		strncpy(&net->ksnn_interfaces[j].ksni_name[0],
-			names[i], IFNAMSIZ);
-		j++;
-	}
-
-	lnet_ipif_free_enumeration(names, n);
-
-	if (j == 0)
-		CERROR("Can't find any usable interfaces\n");
-
-	return j;
-}
-
-static int
-ksocknal_search_new_ipif(ksock_net_t *net)
-{
-	int new_ipif = 0;
-	int i;
-
-	for (i = 0; i < net->ksnn_ninterfaces; i++) {
-		char *ifnam = &net->ksnn_interfaces[i].ksni_name[0];
-		char *colon = strchr(ifnam, ':');
-		int found  = 0;
-		ksock_net_t *tmp;
-		int j;
-
-		if (colon != NULL) /* ignore alias device */
-			*colon = 0;
-
-		list_for_each_entry(tmp, &ksocknal_data.ksnd_nets,
-					ksnn_list) {
-			for (j = 0; !found && j < tmp->ksnn_ninterfaces; j++) {
-				char *ifnam2 =
-					&tmp->ksnn_interfaces[j].ksni_name[0];
-				char *colon2 = strchr(ifnam2, ':');
-
-				if (colon2 != NULL)
-					*colon2 = 0;
-
-				found = strcmp(ifnam, ifnam2) == 0;
-				if (colon2 != NULL)
-					*colon2 = ':';
-			}
-			if (found)
-				break;
-		}
-
-		new_ipif += !found;
-		if (colon != NULL)
-			*colon = ':';
-	}
-
-	return new_ipif;
-}
-
-static int
-ksocknal_start_schedulers(struct ksock_sched_info *info)
-{
-	int nthrs;
-	int rc = 0;
-	int i;
-
-	if (info->ksi_nthreads == 0) {
-		if (*ksocknal_tunables.ksnd_nscheds > 0) {
-			nthrs = info->ksi_nthreads_max;
-		} else {
-			nthrs = cfs_cpt_weight(lnet_cpt_table(),
-					       info->ksi_cpt);
-			nthrs = min(max(SOCKNAL_NSCHEDS, nthrs >> 1), nthrs);
-			nthrs = min(SOCKNAL_NSCHEDS_HIGH, nthrs);
-		}
-		nthrs = min(nthrs, info->ksi_nthreads_max);
-	} else {
-		LASSERT(info->ksi_nthreads <= info->ksi_nthreads_max);
-		/* increase two threads if there is new interface */
-		nthrs = min(2, info->ksi_nthreads_max - info->ksi_nthreads);
-	}
-
-	for (i = 0; i < nthrs; i++) {
-		long id;
-		char name[20];
-		ksock_sched_t *sched;
-		id = KSOCK_THREAD_ID(info->ksi_cpt, info->ksi_nthreads + i);
-		sched = &info->ksi_scheds[KSOCK_THREAD_SID(id)];
-		snprintf(name, sizeof(name), "socknal_sd%02d_%02d",
-			 info->ksi_cpt, (int)(sched - &info->ksi_scheds[0]));
-
-		rc = ksocknal_thread_start(ksocknal_scheduler,
-					   (void *)id, name);
-		if (rc == 0)
-			continue;
-
-		CERROR("Can't spawn thread %d for scheduler[%d]: %d\n",
-		       info->ksi_cpt, info->ksi_nthreads + i, rc);
-		break;
-	}
-
-	info->ksi_nthreads += i;
-	return rc;
-}
-
-static int
-ksocknal_net_start_threads(ksock_net_t *net, __u32 *cpts, int ncpts)
-{
-	int newif = ksocknal_search_new_ipif(net);
-	int rc;
-	int i;
-
-	LASSERT(ncpts > 0 && ncpts <= cfs_cpt_number(lnet_cpt_table()));
-
-	for (i = 0; i < ncpts; i++) {
-		struct ksock_sched_info *info;
-		int cpt = (cpts == NULL) ? i : cpts[i];
-
-		LASSERT(cpt < cfs_cpt_number(lnet_cpt_table()));
-		info = ksocknal_data.ksnd_sched_info[cpt];
-
-		if (!newif && info->ksi_nthreads > 0)
-			continue;
-
-		rc = ksocknal_start_schedulers(info);
-		if (rc != 0)
-			return rc;
-	}
-	return 0;
-}
-
-int
-ksocknal_startup(lnet_ni_t *ni)
-{
-	ksock_net_t *net;
-	int rc;
-	int i;
-
-	LASSERT(ni->ni_lnd == &the_ksocklnd);
-
-	if (ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING) {
-		rc = ksocknal_base_startup();
-		if (rc != 0)
-			return rc;
-	}
-
-	LIBCFS_ALLOC(net, sizeof(*net));
-	if (net == NULL)
-		goto fail_0;
-
-	spin_lock_init(&net->ksnn_lock);
-	net->ksnn_incarnation = ksocknal_new_incarnation();
-	ni->ni_data = net;
-	ni->ni_peertimeout    = *ksocknal_tunables.ksnd_peertimeout;
-	ni->ni_maxtxcredits   = *ksocknal_tunables.ksnd_credits;
-	ni->ni_peertxcredits  = *ksocknal_tunables.ksnd_peertxcredits;
-	ni->ni_peerrtrcredits = *ksocknal_tunables.ksnd_peerrtrcredits;
-
-	if (ni->ni_interfaces[0] == NULL) {
-		rc = ksocknal_enumerate_interfaces(net);
-		if (rc <= 0)
-			goto fail_1;
-
-		net->ksnn_ninterfaces = 1;
-	} else {
-		for (i = 0; i < LNET_MAX_INTERFACES; i++) {
-			int up;
-
-			if (ni->ni_interfaces[i] == NULL)
-				break;
-
-			rc = lnet_ipif_query(ni->ni_interfaces[i], &up,
-				&net->ksnn_interfaces[i].ksni_ipaddr,
-				&net->ksnn_interfaces[i].ksni_netmask);
-
-			if (rc != 0) {
-				CERROR("Can't get interface %s info: %d\n",
-				       ni->ni_interfaces[i], rc);
-				goto fail_1;
-			}
-
-			if (!up) {
-				CERROR("Interface %s is down\n",
-				       ni->ni_interfaces[i]);
-				goto fail_1;
-			}
-
-			strncpy(&net->ksnn_interfaces[i].ksni_name[0],
-				ni->ni_interfaces[i], IFNAMSIZ);
-		}
-		net->ksnn_ninterfaces = i;
-	}
-
-	/* call it before add it to ksocknal_data.ksnd_nets */
-	rc = ksocknal_net_start_threads(net, ni->ni_cpts, ni->ni_ncpts);
-	if (rc != 0)
-		goto fail_1;
-
-	ni->ni_nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid),
-				net->ksnn_interfaces[0].ksni_ipaddr);
-	list_add(&net->ksnn_list, &ksocknal_data.ksnd_nets);
-
-	ksocknal_data.ksnd_nnets++;
-
-	return 0;
-
- fail_1:
-	LIBCFS_FREE(net, sizeof(*net));
- fail_0:
-	if (ksocknal_data.ksnd_nnets == 0)
-		ksocknal_base_shutdown();
-
-	return -ENETDOWN;
-}
-
-
-static void __exit
-ksocknal_module_fini(void)
-{
-	lnet_unregister_lnd(&the_ksocklnd);
-}
-
-static int __init
-ksocknal_module_init(void)
-{
-	int rc;
-
-	/* check ksnr_connected/connecting field large enough */
-	CLASSERT(SOCKLND_CONN_NTYPES <= 4);
-	CLASSERT(SOCKLND_CONN_ACK == SOCKLND_CONN_BULK_IN);
-
-	/* initialize the_ksocklnd */
-	the_ksocklnd.lnd_type     = SOCKLND;
-	the_ksocklnd.lnd_startup  = ksocknal_startup;
-	the_ksocklnd.lnd_shutdown = ksocknal_shutdown;
-	the_ksocklnd.lnd_ctl      = ksocknal_ctl;
-	the_ksocklnd.lnd_send     = ksocknal_send;
-	the_ksocklnd.lnd_recv     = ksocknal_recv;
-	the_ksocklnd.lnd_notify   = ksocknal_notify;
-	the_ksocklnd.lnd_query    = ksocknal_query;
-	the_ksocklnd.lnd_accept   = ksocknal_accept;
-
-	rc = ksocknal_tunables_init();
-	if (rc != 0)
-		return rc;
-
-	lnet_register_lnd(&the_ksocklnd);
-
-	return 0;
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Kernel TCP Socket LND v3.0.0");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("3.0.0");
-
-module_init(ksocknal_module_init);
-module_exit(ksocknal_module_fini);
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
deleted file mode 100644
index a0fcbc39f86b..000000000000
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
+++ /dev/null
@@ -1,689 +0,0 @@
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- *
- *   Author: Zach Brown <zab@zabbo.net>
- *   Author: Peter J. Braam <braam@clusterfs.com>
- *   Author: Phil Schwan <phil@clusterfs.com>
- *   Author: Eric Barton <eric@bartonsoftware.com>
- *
- *   This file is part of Lustre, http://www.lustre.org
- *
- *   Portals is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Portals is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#ifndef _SOCKLND_SOCKLND_H_
-#define _SOCKLND_SOCKLND_H_
-
-#define DEBUG_PORTAL_ALLOC
-#define DEBUG_SUBSYSTEM S_LND
-
-#include <linux/crc32.h>
-#include <linux/errno.h>
-#include <linux/if.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/kmod.h>
-#include <linux/list.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-#include <linux/syscalls.h>
-#include <linux/sysctl.h>
-#include <linux/uio.h>
-#include <linux/unistd.h>
-#include <asm/irq.h>
-#include <net/sock.h>
-#include <net/tcp.h>
-
-#include "../../../include/linux/libcfs/libcfs.h"
-#include "../../../include/linux/lnet/lnet.h"
-#include "../../../include/linux/lnet/lib-lnet.h"
-#include "../../../include/linux/lnet/socklnd.h"
-
-/* assume one thread for each connection type */
-#define SOCKNAL_NSCHEDS		3
-#define SOCKNAL_NSCHEDS_HIGH	(SOCKNAL_NSCHEDS << 1)
-
-#define SOCKNAL_PEER_HASH_SIZE  101   /* # peer lists */
-#define SOCKNAL_RESCHED         100   /* # scheduler loops before reschedule */
-#define SOCKNAL_INSANITY_RECONN 5000  /* connd is trying on reconn infinitely */
-#define SOCKNAL_ENOMEM_RETRY    CFS_TICK /* jiffies between retries */
-
-#define SOCKNAL_SINGLE_FRAG_TX  0     /* disable multi-fragment sends */
-#define SOCKNAL_SINGLE_FRAG_RX  0     /* disable multi-fragment receives */
-
-#define SOCKNAL_VERSION_DEBUG   0     /* enable protocol version debugging */
-
-/* risk kmap deadlock on multi-frag I/O (backs off to single-frag if disabled).
- * no risk if we're not running on a CONFIG_HIGHMEM platform. */
-#ifdef CONFIG_HIGHMEM
-# define SOCKNAL_RISK_KMAP_DEADLOCK  0
-#else
-# define SOCKNAL_RISK_KMAP_DEADLOCK  1
-#endif
-
-struct ksock_sched_info;
-
-typedef struct				  /* per scheduler state */
-{
-	spinlock_t              kss_lock;       /* serialise */
-	struct list_head        kss_rx_conns;   /* conn waiting to be read */
-	struct list_head        kss_tx_conns;   /* conn waiting to be written */
-	struct list_head        kss_zombie_noop_txs; /* zombie noop tx list */
-	wait_queue_head_t       kss_waitq;	/* where scheduler sleeps */
-	int                     kss_nconns;     /* # connections assigned to
-						 * this scheduler */
-	struct ksock_sched_info *kss_info;	/* owner of it */
-	struct page             *kss_rx_scratch_pgs[LNET_MAX_IOV];
-	struct kvec             kss_scratch_iov[LNET_MAX_IOV];
-} ksock_sched_t;
-
-struct ksock_sched_info {
-	int                     ksi_nthreads_max; /* max allowed threads */
-	int                     ksi_nthreads;     /* number of threads */
-	int                     ksi_cpt;          /* CPT id */
-	ksock_sched_t           *ksi_scheds;      /* array of schedulers */
-};
-
-#define KSOCK_CPT_SHIFT           16
-#define KSOCK_THREAD_ID(cpt, sid) (((cpt) << KSOCK_CPT_SHIFT) | (sid))
-#define KSOCK_THREAD_CPT(id)      ((id) >> KSOCK_CPT_SHIFT)
-#define KSOCK_THREAD_SID(id)      ((id) & ((1UL << KSOCK_CPT_SHIFT) - 1))
-
-typedef struct                                  /* in-use interface */
-{
-	__u32		ksni_ipaddr;		/* interface's IP address */
-	__u32		ksni_netmask;		/* interface's network mask */
-	int		ksni_nroutes;		/* # routes using (active) */
-	int		ksni_npeers;		/* # peers using (passive) */
-	char		ksni_name[IFNAMSIZ];	/* interface name */
-} ksock_interface_t;
-
-typedef struct {
-	int          *ksnd_timeout;            /* "stuck" socket timeout
-						* (seconds) */
-	int          *ksnd_nscheds;            /* # scheduler threads in each
-						* pool while starting */
-	int          *ksnd_nconnds;            /* # connection daemons */
-	int          *ksnd_nconnds_max;        /* max # connection daemons */
-	int          *ksnd_min_reconnectms;    /* first connection retry after
-						* (ms)... */
-	int          *ksnd_max_reconnectms;    /* ...exponentially increasing to
-						* this */
-	int          *ksnd_eager_ack;          /* make TCP ack eagerly? */
-	int          *ksnd_typed_conns;        /* drive sockets by type? */
-	int          *ksnd_min_bulk;           /* smallest "large" message */
-	int          *ksnd_tx_buffer_size;     /* socket tx buffer size */
-	int          *ksnd_rx_buffer_size;     /* socket rx buffer size */
-	int          *ksnd_nagle;              /* enable NAGLE? */
-	int          *ksnd_round_robin;        /* round robin for multiple
-						* interfaces */
-	int          *ksnd_keepalive;          /* # secs for sending keepalive
-						* NOOP */
-	int          *ksnd_keepalive_idle;     /* # idle secs before 1st probe
-						*/
-	int          *ksnd_keepalive_count;    /* # probes */
-	int          *ksnd_keepalive_intvl;    /* time between probes */
-	int          *ksnd_credits;            /* # concurrent sends */
-	int          *ksnd_peertxcredits;      /* # concurrent sends to 1 peer
-						*/
-	int          *ksnd_peerrtrcredits;     /* # per-peer router buffer
-						* credits */
-	int          *ksnd_peertimeout;        /* seconds to consider peer dead
-						*/
-	int          *ksnd_enable_csum;        /* enable check sum */
-	int          *ksnd_inject_csum_error;  /* set non-zero to inject
-						* checksum error */
-	int          *ksnd_nonblk_zcack;       /* always send zc-ack on
-						* non-blocking connection */
-	unsigned int *ksnd_zc_min_payload;     /* minimum zero copy payload
-						* size */
-	int          *ksnd_zc_recv;            /* enable ZC receive (for
-						* Chelsio TOE) */
-	int          *ksnd_zc_recv_min_nfrags; /* minimum # of fragments to
-						* enable ZC receive */
-} ksock_tunables_t;
-
-typedef struct {
-	__u64		  ksnn_incarnation;	/* my epoch */
-	spinlock_t	  ksnn_lock;		/* serialise */
-	struct list_head	  ksnn_list;		/* chain on global list */
-	int		  ksnn_npeers;		/* # peers */
-	int		  ksnn_shutdown;	/* shutting down? */
-	int		  ksnn_ninterfaces;	/* IP interfaces */
-	ksock_interface_t ksnn_interfaces[LNET_MAX_INTERFACES];
-} ksock_net_t;
-
-/** connd timeout */
-#define SOCKNAL_CONND_TIMEOUT  120
-/** reserved thread for accepting & creating new connd */
-#define SOCKNAL_CONND_RESV     1
-
-typedef struct {
-	int                     ksnd_init;              /* initialisation state
-							 */
-	int                     ksnd_nnets;             /* # networks set up */
-	struct list_head        ksnd_nets;              /* list of nets */
-	rwlock_t                ksnd_global_lock;       /* stabilize peer/conn
-							 * ops */
-	struct list_head        *ksnd_peers;            /* hash table of all my
-							 * known peers */
-	int                     ksnd_peer_hash_size;    /* size of ksnd_peers */
-
-	int                     ksnd_nthreads;          /* # live threads */
-	int                     ksnd_shuttingdown;      /* tell threads to exit
-							 */
-	struct ksock_sched_info **ksnd_sched_info;      /* schedulers info */
-
-	atomic_t                ksnd_nactive_txs;       /* #active txs */
-
-	struct list_head        ksnd_deathrow_conns;    /* conns to close:
-							 * reaper_lock*/
-	struct list_head        ksnd_zombie_conns;      /* conns to free:
-							 * reaper_lock */
-	struct list_head        ksnd_enomem_conns;      /* conns to retry:
-							 * reaper_lock*/
-	wait_queue_head_t       ksnd_reaper_waitq;      /* reaper sleeps here */
-	unsigned long	        ksnd_reaper_waketime;   /* when reaper will wake
-							 */
-	spinlock_t              ksnd_reaper_lock;       /* serialise */
-
-	int                     ksnd_enomem_tx;         /* test ENOMEM sender */
-	int                     ksnd_stall_tx;          /* test sluggish sender
-							 */
-	int                     ksnd_stall_rx;          /* test sluggish
-							 * receiver */
-
-	struct list_head        ksnd_connd_connreqs;    /* incoming connection
-							 * requests */
-	struct list_head        ksnd_connd_routes;      /* routes waiting to be
-							 * connected */
-	wait_queue_head_t       ksnd_connd_waitq;       /* connds sleep here */
-	int                     ksnd_connd_connecting;  /* # connds connecting
-							 */
-	long                    ksnd_connd_failed_stamp;/* time stamp of the
-							 * last failed
-							 * connecting attempt */
-	unsigned                ksnd_connd_starting;    /* # starting connd */
-	long                    ksnd_connd_starting_stamp;/* time stamp of the
-							   * last starting connd
-							   */
-	unsigned                ksnd_connd_running;     /* # running connd */
-	spinlock_t              ksnd_connd_lock;        /* serialise */
-
-	struct list_head        ksnd_idle_noop_txs;     /* list head for freed
-							 * noop tx */
-	spinlock_t              ksnd_tx_lock;           /* serialise, g_lock
-							 * unsafe */
-
-} ksock_nal_data_t;
-
-#define SOCKNAL_INIT_NOTHING 0
-#define SOCKNAL_INIT_DATA    1
-#define SOCKNAL_INIT_ALL     2
-
-/* A packet just assembled for transmission is represented by 1 or more
- * struct iovec fragments (the first frag contains the portals header),
- * followed by 0 or more lnet_kiov_t fragments.
- *
- * On the receive side, initially 1 struct iovec fragment is posted for
- * receive (the header).  Once the header has been received, the payload is
- * received into either struct iovec or lnet_kiov_t fragments, depending on
- * what the header matched or whether the message needs forwarding. */
-
-struct ksock_conn;  /* forward ref */
-struct ksock_peer;  /* forward ref */
-struct ksock_route; /* forward ref */
-struct ksock_proto; /* forward ref */
-
-typedef struct                             /* transmit packet */
-{
-	struct list_head  tx_list;         /* queue on conn for transmission etc
-					    */
-	struct list_head  tx_zc_list;      /* queue on peer for ZC request */
-	atomic_t          tx_refcount;     /* tx reference count */
-	int               tx_nob;          /* # packet bytes */
-	int               tx_resid;        /* residual bytes */
-	int               tx_niov;         /* # packet iovec frags */
-	struct kvec       *tx_iov;         /* packet iovec frags */
-	int               tx_nkiov;        /* # packet page frags */
-	unsigned short    tx_zc_aborted;   /* aborted ZC request */
-	unsigned short    tx_zc_capable:1; /* payload is large enough for ZC */
-	unsigned short    tx_zc_checked:1; /* Have I checked if I should ZC? */
-	unsigned short    tx_nonblk:1;     /* it's a non-blocking ACK */
-	lnet_kiov_t       *tx_kiov;        /* packet page frags */
-	struct ksock_conn *tx_conn;        /* owning conn */
-	lnet_msg_t        *tx_lnetmsg;     /* lnet message for lnet_finalize()
-					    */
-	unsigned long     tx_deadline;     /* when (in jiffies) tx times out */
-	ksock_msg_t       tx_msg;          /* socklnd message buffer */
-	int               tx_desc_size;    /* size of this descriptor */
-	union {
-		struct {
-			struct kvec iov;     /* virt hdr */
-			lnet_kiov_t kiov[0]; /* paged payload */
-		} paged;
-		struct {
-			struct kvec iov[1];  /* virt hdr + payload */
-		} virt;
-	} tx_frags;
-} ksock_tx_t;
-
-#define KSOCK_NOOP_TX_SIZE ((int)offsetof(ksock_tx_t, tx_frags.paged.kiov[0]))
-
-/* network zero copy callback descriptor embedded in ksock_tx_t */
-
-/* space for the rx frag descriptors; we either read a single contiguous
- * header, or up to LNET_MAX_IOV frags of payload of either type. */
-typedef union {
-	struct kvec      iov[LNET_MAX_IOV];
-	lnet_kiov_t      kiov[LNET_MAX_IOV];
-} ksock_rxiovspace_t;
-
-#define SOCKNAL_RX_KSM_HEADER   1 /* reading ksock message header */
-#define SOCKNAL_RX_LNET_HEADER  2 /* reading lnet message header */
-#define SOCKNAL_RX_PARSE        3 /* Calling lnet_parse() */
-#define SOCKNAL_RX_PARSE_WAIT   4 /* waiting to be told to read the body */
-#define SOCKNAL_RX_LNET_PAYLOAD 5 /* reading lnet payload (to deliver here) */
-#define SOCKNAL_RX_SLOP         6 /* skipping body */
-
-typedef struct ksock_conn {
-	struct ksock_peer  *ksnc_peer;        /* owning peer */
-	struct ksock_route *ksnc_route;       /* owning route */
-	struct list_head   ksnc_list;         /* stash on peer's conn list */
-	struct socket      *ksnc_sock;        /* actual socket */
-	void               *ksnc_saved_data_ready;  /* socket's original
-						     * data_ready() callback */
-	void               *ksnc_saved_write_space; /* socket's original
-						     * write_space() callback */
-	atomic_t           ksnc_conn_refcount;/* conn refcount */
-	atomic_t           ksnc_sock_refcount;/* sock refcount */
-	ksock_sched_t      *ksnc_scheduler;   /* who schedules this connection
-					       */
-	__u32              ksnc_myipaddr;     /* my IP */
-	__u32              ksnc_ipaddr;       /* peer's IP */
-	int                ksnc_port;         /* peer's port */
-	signed int         ksnc_type:3;       /* type of connection, should be
-					       * signed value */
-	unsigned int       ksnc_closing:1;    /* being shut down */
-	unsigned int       ksnc_flip:1;       /* flip or not, only for V2.x */
-	unsigned int       ksnc_zc_capable:1; /* enable to ZC */
-	struct ksock_proto *ksnc_proto;       /* protocol for the connection */
-
-	/* reader */
-	struct list_head   ksnc_rx_list;      /* where I enq waiting input or a
-					       * forwarding descriptor */
-	unsigned long      ksnc_rx_deadline;  /* when (in jiffies) receive times
-					       * out */
-	__u8               ksnc_rx_started;   /* started receiving a message */
-	__u8               ksnc_rx_ready;     /* data ready to read */
-	__u8               ksnc_rx_scheduled; /* being progressed */
-	__u8               ksnc_rx_state;     /* what is being read */
-	int                ksnc_rx_nob_left;  /* # bytes to next hdr/body */
-	int                ksnc_rx_nob_wanted;/* bytes actually wanted */
-	int                ksnc_rx_niov;      /* # iovec frags */
-	struct kvec        *ksnc_rx_iov;      /* the iovec frags */
-	int                ksnc_rx_nkiov;     /* # page frags */
-	lnet_kiov_t        *ksnc_rx_kiov;     /* the page frags */
-	ksock_rxiovspace_t ksnc_rx_iov_space; /* space for frag descriptors */
-	__u32              ksnc_rx_csum;      /* partial checksum for incoming
-					       * data */
-	void               *ksnc_cookie;      /* rx lnet_finalize passthru arg
-					       */
-	ksock_msg_t        ksnc_msg;          /* incoming message buffer:
-					       * V2.x message takes the
-					       * whole struct
-					       * V1.x message is a bare
-					       * lnet_hdr_t, it's stored in
-					       * ksnc_msg.ksm_u.lnetmsg */
-
-	/* WRITER */
-	struct list_head   ksnc_tx_list;      /* where I enq waiting for output
-					       * space */
-	struct list_head   ksnc_tx_queue;     /* packets waiting to be sent */
-	ksock_tx_t         *ksnc_tx_carrier;  /* next TX that can carry a LNet
-					       * message or ZC-ACK */
-	unsigned long      ksnc_tx_deadline;  /* when (in jiffies) tx times out
-					       */
-	int                ksnc_tx_bufnob;    /* send buffer marker */
-	atomic_t           ksnc_tx_nob;       /* # bytes queued */
-	int		   ksnc_tx_ready;     /* write space */
-	int		   ksnc_tx_scheduled; /* being progressed */
-	unsigned long      ksnc_tx_last_post; /* time stamp of the last posted
-					       * TX */
-} ksock_conn_t;
-
-typedef struct ksock_route {
-	struct list_head  ksnr_list;           /* chain on peer route list */
-	struct list_head  ksnr_connd_list;     /* chain on ksnr_connd_routes */
-	struct ksock_peer *ksnr_peer;          /* owning peer */
-	atomic_t          ksnr_refcount;       /* # users */
-	unsigned long     ksnr_timeout;        /* when (in jiffies) reconnection
-						* can happen next */
-	long              ksnr_retry_interval; /* how long between retries */
-	__u32             ksnr_myipaddr;       /* my IP */
-	__u32             ksnr_ipaddr;         /* IP address to connect to */
-	int               ksnr_port;           /* port to connect to */
-	unsigned int      ksnr_scheduled:1;    /* scheduled for attention */
-	unsigned int      ksnr_connecting:1;   /* connection establishment in
-						* progress */
-	unsigned int      ksnr_connected:4;    /* connections established by
-						* type */
-	unsigned int      ksnr_deleted:1;      /* been removed from peer? */
-	unsigned int      ksnr_share_count;    /* created explicitly? */
-	int               ksnr_conn_count;     /* # conns established by this
-						* route */
-} ksock_route_t;
-
-#define SOCKNAL_KEEPALIVE_PING 1 /* cookie for keepalive ping */
-
-typedef struct ksock_peer {
-	struct list_head   ksnp_list;           /* stash on global peer list */
-	unsigned long      ksnp_last_alive;     /* when (in jiffies) I was last
-						 * alive */
-	lnet_process_id_t  ksnp_id;             /* who's on the other end(s) */
-	atomic_t           ksnp_refcount;       /* # users */
-	int                ksnp_sharecount;     /* lconf usage counter */
-	int                ksnp_closing;        /* being closed */
-	int                ksnp_accepting;      /* # passive connections pending
-						 */
-	int                ksnp_error;          /* errno on closing last conn */
-	__u64              ksnp_zc_next_cookie; /* ZC completion cookie */
-	__u64              ksnp_incarnation;    /* latest known peer incarnation
-						 */
-	struct ksock_proto *ksnp_proto;         /* latest known peer protocol */
-	struct list_head   ksnp_conns;          /* all active connections */
-	struct list_head   ksnp_routes;         /* routes */
-	struct list_head   ksnp_tx_queue;       /* waiting packets */
-	spinlock_t         ksnp_lock;           /* serialize, g_lock unsafe */
-	struct list_head   ksnp_zc_req_list;    /* zero copy requests wait for
-						 * ACK  */
-	unsigned long      ksnp_send_keepalive; /* time to send keepalive */
-	lnet_ni_t          *ksnp_ni;            /* which network */
-	int                ksnp_n_passive_ips;  /* # of... */
-
-	/* preferred local interfaces */
-	__u32              ksnp_passive_ips[LNET_MAX_INTERFACES];
-} ksock_peer_t;
-
-typedef struct ksock_connreq {
-	struct list_head ksncr_list;  /* stash on ksnd_connd_connreqs */
-	lnet_ni_t        *ksncr_ni;   /* chosen NI */
-	struct socket    *ksncr_sock; /* accepted socket */
-} ksock_connreq_t;
-
-extern ksock_nal_data_t ksocknal_data;
-extern ksock_tunables_t ksocknal_tunables;
-
-#define SOCKNAL_MATCH_NO  0 /* TX can't match type of connection */
-#define SOCKNAL_MATCH_YES 1 /* TX matches type of connection */
-#define SOCKNAL_MATCH_MAY 2 /* TX can be sent on the connection, but not
-			     * preferred */
-
-typedef struct ksock_proto {
-	/* version number of protocol */
-	int        pro_version;
-
-	/* handshake function */
-	int        (*pro_send_hello)(ksock_conn_t *, ksock_hello_msg_t *);
-
-	/* handshake function */
-	int        (*pro_recv_hello)(ksock_conn_t *, ksock_hello_msg_t *, int);
-
-	/* message pack */
-	void       (*pro_pack)(ksock_tx_t *);
-
-	/* message unpack */
-	void       (*pro_unpack)(ksock_msg_t *);
-
-	/* queue tx on the connection */
-	ksock_tx_t *(*pro_queue_tx_msg)(ksock_conn_t *, ksock_tx_t *);
-
-	/* queue ZC ack on the connection */
-	int        (*pro_queue_tx_zcack)(ksock_conn_t *, ksock_tx_t *, __u64);
-
-	/* handle ZC request */
-	int        (*pro_handle_zcreq)(ksock_conn_t *, __u64, int);
-
-	/* handle ZC ACK */
-	int        (*pro_handle_zcack)(ksock_conn_t *, __u64, __u64);
-
-	/* msg type matches the connection type:
-	 * return value:
-	 *   return MATCH_NO  : no
-	 *   return MATCH_YES : matching type
-	 *   return MATCH_MAY : can be backup */
-	int        (*pro_match_tx)(ksock_conn_t *, ksock_tx_t *, int);
-} ksock_proto_t;
-
-extern ksock_proto_t ksocknal_protocol_v1x;
-extern ksock_proto_t ksocknal_protocol_v2x;
-extern ksock_proto_t ksocknal_protocol_v3x;
-
-#define KSOCK_PROTO_V1_MAJOR LNET_PROTO_TCP_VERSION_MAJOR
-#define KSOCK_PROTO_V1_MINOR LNET_PROTO_TCP_VERSION_MINOR
-#define KSOCK_PROTO_V1       KSOCK_PROTO_V1_MAJOR
-
-#ifndef CPU_MASK_NONE
-#define CPU_MASK_NONE   0UL
-#endif
-
-static inline __u32 ksocknal_csum(__u32 crc, unsigned char const *p, size_t len)
-{
-#if 1
-	return crc32_le(crc, p, len);
-#else
-	while (len-- > 0)
-		crc = ((crc + 0x100) & ~0xff) | ((crc + *p++) & 0xff) ;
-	return crc;
-#endif
-}
-
-static inline int
-ksocknal_route_mask(void)
-{
-	if (!*ksocknal_tunables.ksnd_typed_conns)
-		return (1 << SOCKLND_CONN_ANY);
-
-	return ((1 << SOCKLND_CONN_CONTROL) |
-		(1 << SOCKLND_CONN_BULK_IN) |
-		(1 << SOCKLND_CONN_BULK_OUT));
-}
-
-static inline struct list_head *
-ksocknal_nid2peerlist(lnet_nid_t nid)
-{
-	unsigned int hash = ((unsigned int)nid) % ksocknal_data.ksnd_peer_hash_size;
-
-	return &ksocknal_data.ksnd_peers[hash];
-}
-
-static inline void
-ksocknal_conn_addref(ksock_conn_t *conn)
-{
-	LASSERT(atomic_read(&conn->ksnc_conn_refcount) > 0);
-	atomic_inc(&conn->ksnc_conn_refcount);
-}
-
-void ksocknal_queue_zombie_conn(ksock_conn_t *conn);
-void ksocknal_finalize_zcreq(ksock_conn_t *conn);
-
-static inline void
-ksocknal_conn_decref(ksock_conn_t *conn)
-{
-	LASSERT(atomic_read(&conn->ksnc_conn_refcount) > 0);
-	if (atomic_dec_and_test(&conn->ksnc_conn_refcount))
-		ksocknal_queue_zombie_conn(conn);
-}
-
-static inline int
-ksocknal_connsock_addref(ksock_conn_t *conn)
-{
-	int rc = -ESHUTDOWN;
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-	if (!conn->ksnc_closing) {
-		LASSERT(atomic_read(&conn->ksnc_sock_refcount) > 0);
-		atomic_inc(&conn->ksnc_sock_refcount);
-		rc = 0;
-	}
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-
-	return rc;
-}
-
-static inline void
-ksocknal_connsock_decref(ksock_conn_t *conn)
-{
-	LASSERT(atomic_read(&conn->ksnc_sock_refcount) > 0);
-	if (atomic_dec_and_test(&conn->ksnc_sock_refcount)) {
-		LASSERT(conn->ksnc_closing);
-		sock_release(conn->ksnc_sock);
-		conn->ksnc_sock = NULL;
-		ksocknal_finalize_zcreq(conn);
-	}
-}
-
-static inline void
-ksocknal_tx_addref(ksock_tx_t *tx)
-{
-	LASSERT(atomic_read(&tx->tx_refcount) > 0);
-	atomic_inc(&tx->tx_refcount);
-}
-
-void ksocknal_tx_prep(ksock_conn_t *, ksock_tx_t *tx);
-void ksocknal_tx_done(lnet_ni_t *ni, ksock_tx_t *tx);
-
-static inline void
-ksocknal_tx_decref(ksock_tx_t *tx)
-{
-	LASSERT(atomic_read(&tx->tx_refcount) > 0);
-	if (atomic_dec_and_test(&tx->tx_refcount))
-		ksocknal_tx_done(NULL, tx);
-}
-
-static inline void
-ksocknal_route_addref(ksock_route_t *route)
-{
-	LASSERT(atomic_read(&route->ksnr_refcount) > 0);
-	atomic_inc(&route->ksnr_refcount);
-}
-
-void ksocknal_destroy_route(ksock_route_t *route);
-
-static inline void
-ksocknal_route_decref(ksock_route_t *route)
-{
-	LASSERT(atomic_read(&route->ksnr_refcount) > 0);
-	if (atomic_dec_and_test(&route->ksnr_refcount))
-		ksocknal_destroy_route(route);
-}
-
-static inline void
-ksocknal_peer_addref(ksock_peer_t *peer)
-{
-	LASSERT(atomic_read(&peer->ksnp_refcount) > 0);
-	atomic_inc(&peer->ksnp_refcount);
-}
-
-void ksocknal_destroy_peer(ksock_peer_t *peer);
-
-static inline void
-ksocknal_peer_decref(ksock_peer_t *peer)
-{
-	LASSERT(atomic_read(&peer->ksnp_refcount) > 0);
-	if (atomic_dec_and_test(&peer->ksnp_refcount))
-		ksocknal_destroy_peer(peer);
-}
-
-int ksocknal_startup(lnet_ni_t *ni);
-void ksocknal_shutdown(lnet_ni_t *ni);
-int ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg);
-int ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg);
-int ksocknal_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
-		  int delayed, unsigned int niov,
-		  struct kvec *iov, lnet_kiov_t *kiov,
-		  unsigned int offset, unsigned int mlen, unsigned int rlen);
-int ksocknal_accept(lnet_ni_t *ni, struct socket *sock);
-
-int ksocknal_add_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ip, int port);
-ksock_peer_t *ksocknal_find_peer_locked(lnet_ni_t *ni, lnet_process_id_t id);
-ksock_peer_t *ksocknal_find_peer(lnet_ni_t *ni, lnet_process_id_t id);
-void ksocknal_peer_failed(ksock_peer_t *peer);
-int ksocknal_create_conn(lnet_ni_t *ni, ksock_route_t *route,
-			 struct socket *sock, int type);
-void ksocknal_close_conn_locked(ksock_conn_t *conn, int why);
-void ksocknal_terminate_conn(ksock_conn_t *conn);
-void ksocknal_destroy_conn(ksock_conn_t *conn);
-int  ksocknal_close_peer_conns_locked(ksock_peer_t *peer,
-				      __u32 ipaddr, int why);
-int ksocknal_close_conn_and_siblings(ksock_conn_t *conn, int why);
-int ksocknal_close_matching_conns(lnet_process_id_t id, __u32 ipaddr);
-ksock_conn_t *ksocknal_find_conn_locked(ksock_peer_t *peer,
-					ksock_tx_t *tx, int nonblk);
-
-int  ksocknal_launch_packet(lnet_ni_t *ni, ksock_tx_t *tx,
-			    lnet_process_id_t id);
-ksock_tx_t *ksocknal_alloc_tx(int type, int size);
-void ksocknal_free_tx(ksock_tx_t *tx);
-ksock_tx_t *ksocknal_alloc_tx_noop(__u64 cookie, int nonblk);
-void ksocknal_next_tx_carrier(ksock_conn_t *conn);
-void ksocknal_queue_tx_locked(ksock_tx_t *tx, ksock_conn_t *conn);
-void ksocknal_txlist_done(lnet_ni_t *ni, struct list_head *txlist, int error);
-void ksocknal_notify(lnet_ni_t *ni, lnet_nid_t gw_nid, int alive);
-void ksocknal_query(struct lnet_ni *ni, lnet_nid_t nid, unsigned long *when);
-int ksocknal_thread_start(int (*fn)(void *arg), void *arg, char *name);
-void ksocknal_thread_fini(void);
-void ksocknal_launch_all_connections_locked(ksock_peer_t *peer);
-ksock_route_t *ksocknal_find_connectable_route_locked(ksock_peer_t *peer);
-ksock_route_t *ksocknal_find_connecting_route_locked(ksock_peer_t *peer);
-int ksocknal_new_packet(ksock_conn_t *conn, int skip);
-int ksocknal_scheduler(void *arg);
-int ksocknal_connd(void *arg);
-int ksocknal_reaper(void *arg);
-int ksocknal_send_hello(lnet_ni_t *ni, ksock_conn_t *conn,
-			lnet_nid_t peer_nid, ksock_hello_msg_t *hello);
-int ksocknal_recv_hello(lnet_ni_t *ni, ksock_conn_t *conn,
-			ksock_hello_msg_t *hello, lnet_process_id_t *id,
-			__u64 *incarnation);
-void ksocknal_read_callback(ksock_conn_t *conn);
-void ksocknal_write_callback(ksock_conn_t *conn);
-
-int ksocknal_lib_zc_capable(ksock_conn_t *conn);
-void ksocknal_lib_save_callback(struct socket *sock, ksock_conn_t *conn);
-void ksocknal_lib_set_callback(struct socket *sock,  ksock_conn_t *conn);
-void ksocknal_lib_reset_callback(struct socket *sock, ksock_conn_t *conn);
-void ksocknal_lib_push_conn(ksock_conn_t *conn);
-int ksocknal_lib_get_conn_addrs(ksock_conn_t *conn);
-int ksocknal_lib_setup_sock(struct socket *so);
-int ksocknal_lib_send_iov(ksock_conn_t *conn, ksock_tx_t *tx);
-int ksocknal_lib_send_kiov(ksock_conn_t *conn, ksock_tx_t *tx);
-void ksocknal_lib_eager_ack(ksock_conn_t *conn);
-int ksocknal_lib_recv_iov(ksock_conn_t *conn);
-int ksocknal_lib_recv_kiov(ksock_conn_t *conn);
-int ksocknal_lib_get_conn_tunables(ksock_conn_t *conn, int *txmem,
-				   int *rxmem, int *nagle);
-
-int ksocknal_tunables_init(void);
-
-void ksocknal_lib_csum_tx(ksock_tx_t *tx);
-
-int ksocknal_lib_memory_pressure(ksock_conn_t *conn);
-int ksocknal_lib_bind_thread_to_cpu(int id);
-
-#endif /* _SOCKLND_SOCKLND_H_ */
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
deleted file mode 100644
index 0d5aac6a2bb3..000000000000
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
+++ /dev/null
@@ -1,2633 +0,0 @@
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- *
- *   Author: Zach Brown <zab@zabbo.net>
- *   Author: Peter J. Braam <braam@clusterfs.com>
- *   Author: Phil Schwan <phil@clusterfs.com>
- *   Author: Eric Barton <eric@bartonsoftware.com>
- *
- *   This file is part of Portals, http://www.sf.net/projects/sandiaportals/
- *
- *   Portals is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Portals is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include "socklnd.h"
-
-ksock_tx_t *
-ksocknal_alloc_tx(int type, int size)
-{
-	ksock_tx_t *tx = NULL;
-
-	if (type == KSOCK_MSG_NOOP) {
-		LASSERT(size == KSOCK_NOOP_TX_SIZE);
-
-		/* searching for a noop tx in free list */
-		spin_lock(&ksocknal_data.ksnd_tx_lock);
-
-		if (!list_empty(&ksocknal_data.ksnd_idle_noop_txs)) {
-			tx = list_entry(ksocknal_data.ksnd_idle_noop_txs. \
-					    next, ksock_tx_t, tx_list);
-			LASSERT(tx->tx_desc_size == size);
-			list_del(&tx->tx_list);
-		}
-
-		spin_unlock(&ksocknal_data.ksnd_tx_lock);
-	}
-
-	if (tx == NULL)
-		LIBCFS_ALLOC(tx, size);
-
-	if (tx == NULL)
-		return NULL;
-
-	atomic_set(&tx->tx_refcount, 1);
-	tx->tx_zc_aborted = 0;
-	tx->tx_zc_capable = 0;
-	tx->tx_zc_checked = 0;
-	tx->tx_desc_size  = size;
-
-	atomic_inc(&ksocknal_data.ksnd_nactive_txs);
-
-	return tx;
-}
-
-ksock_tx_t *
-ksocknal_alloc_tx_noop(__u64 cookie, int nonblk)
-{
-	ksock_tx_t *tx;
-
-	tx = ksocknal_alloc_tx(KSOCK_MSG_NOOP, KSOCK_NOOP_TX_SIZE);
-	if (tx == NULL) {
-		CERROR("Can't allocate noop tx desc\n");
-		return NULL;
-	}
-
-	tx->tx_conn    = NULL;
-	tx->tx_lnetmsg = NULL;
-	tx->tx_kiov    = NULL;
-	tx->tx_nkiov   = 0;
-	tx->tx_iov     = tx->tx_frags.virt.iov;
-	tx->tx_niov    = 1;
-	tx->tx_nonblk  = nonblk;
-
-	socklnd_init_msg(&tx->tx_msg, KSOCK_MSG_NOOP);
-	tx->tx_msg.ksm_zc_cookies[1] = cookie;
-
-	return tx;
-}
-
-
-void
-ksocknal_free_tx (ksock_tx_t *tx)
-{
-	atomic_dec(&ksocknal_data.ksnd_nactive_txs);
-
-	if (tx->tx_lnetmsg == NULL && tx->tx_desc_size == KSOCK_NOOP_TX_SIZE) {
-		/* it's a noop tx */
-		spin_lock(&ksocknal_data.ksnd_tx_lock);
-
-		list_add(&tx->tx_list, &ksocknal_data.ksnd_idle_noop_txs);
-
-		spin_unlock(&ksocknal_data.ksnd_tx_lock);
-	} else {
-		LIBCFS_FREE(tx, tx->tx_desc_size);
-	}
-}
-
-static int
-ksocknal_send_iov (ksock_conn_t *conn, ksock_tx_t *tx)
-{
-	struct kvec *iov = tx->tx_iov;
-	int nob;
-	int rc;
-
-	LASSERT(tx->tx_niov > 0);
-
-	/* Never touch tx->tx_iov inside ksocknal_lib_send_iov() */
-	rc = ksocknal_lib_send_iov(conn, tx);
-
-	if (rc <= 0)			    /* sent nothing? */
-		return rc;
-
-	nob = rc;
-	LASSERT (nob <= tx->tx_resid);
-	tx->tx_resid -= nob;
-
-	/* "consume" iov */
-	do {
-		LASSERT(tx->tx_niov > 0);
-
-		if (nob < (int) iov->iov_len) {
-			iov->iov_base = (void *)((char *)iov->iov_base + nob);
-			iov->iov_len -= nob;
-			return rc;
-		}
-
-		nob -= iov->iov_len;
-		tx->tx_iov = ++iov;
-		tx->tx_niov--;
-	} while (nob != 0);
-
-	return rc;
-}
-
-static int
-ksocknal_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
-{
-	lnet_kiov_t *kiov = tx->tx_kiov;
-	int nob;
-	int rc;
-
-	LASSERT(tx->tx_niov == 0);
-	LASSERT(tx->tx_nkiov > 0);
-
-	/* Never touch tx->tx_kiov inside ksocknal_lib_send_kiov() */
-	rc = ksocknal_lib_send_kiov(conn, tx);
-
-	if (rc <= 0)			    /* sent nothing? */
-		return rc;
-
-	nob = rc;
-	LASSERT (nob <= tx->tx_resid);
-	tx->tx_resid -= nob;
-
-	/* "consume" kiov */
-	do {
-		LASSERT(tx->tx_nkiov > 0);
-
-		if (nob < (int)kiov->kiov_len) {
-			kiov->kiov_offset += nob;
-			kiov->kiov_len -= nob;
-			return rc;
-		}
-
-		nob -= (int)kiov->kiov_len;
-		tx->tx_kiov = ++kiov;
-		tx->tx_nkiov--;
-	} while (nob != 0);
-
-	return rc;
-}
-
-static int
-ksocknal_transmit (ksock_conn_t *conn, ksock_tx_t *tx)
-{
-	int rc;
-	int bufnob;
-
-	if (ksocknal_data.ksnd_stall_tx != 0) {
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(ksocknal_data.ksnd_stall_tx));
-	}
-
-	LASSERT(tx->tx_resid != 0);
-
-	rc = ksocknal_connsock_addref(conn);
-	if (rc != 0) {
-		LASSERT (conn->ksnc_closing);
-		return -ESHUTDOWN;
-	}
-
-	do {
-		if (ksocknal_data.ksnd_enomem_tx > 0) {
-			/* testing... */
-			ksocknal_data.ksnd_enomem_tx--;
-			rc = -EAGAIN;
-		} else if (tx->tx_niov != 0) {
-			rc = ksocknal_send_iov (conn, tx);
-		} else {
-			rc = ksocknal_send_kiov (conn, tx);
-		}
-
-		bufnob = conn->ksnc_sock->sk->sk_wmem_queued;
-		if (rc > 0)		     /* sent something? */
-			conn->ksnc_tx_bufnob += rc; /* account it */
-
-		if (bufnob < conn->ksnc_tx_bufnob) {
-			/* allocated send buffer bytes < computed; infer
-			 * something got ACKed */
-			conn->ksnc_tx_deadline =
-				cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-			conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
-			conn->ksnc_tx_bufnob = bufnob;
-			mb();
-		}
-
-		if (rc <= 0) { /* Didn't write anything? */
-
-			if (rc == 0) /* some stacks return 0 instead of -EAGAIN */
-				rc = -EAGAIN;
-
-			/* Check if EAGAIN is due to memory pressure */
-			if (rc == -EAGAIN && ksocknal_lib_memory_pressure(conn))
-				rc = -ENOMEM;
-
-			break;
-		}
-
-		/* socket's wmem_queued now includes 'rc' bytes */
-		atomic_sub (rc, &conn->ksnc_tx_nob);
-		rc = 0;
-
-	} while (tx->tx_resid != 0);
-
-	ksocknal_connsock_decref(conn);
-	return rc;
-}
-
-static int
-ksocknal_recv_iov (ksock_conn_t *conn)
-{
-	struct kvec *iov = conn->ksnc_rx_iov;
-	int nob;
-	int rc;
-
-	LASSERT(conn->ksnc_rx_niov > 0);
-
-	/* Never touch conn->ksnc_rx_iov or change connection
-	 * status inside ksocknal_lib_recv_iov */
-	rc = ksocknal_lib_recv_iov(conn);
-
-	if (rc <= 0)
-		return rc;
-
-	/* received something... */
-	nob = rc;
-
-	conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
-	conn->ksnc_rx_deadline =
-		cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-	mb();		       /* order with setting rx_started */
-	conn->ksnc_rx_started = 1;
-
-	conn->ksnc_rx_nob_wanted -= nob;
-	conn->ksnc_rx_nob_left -= nob;
-
-	do {
-		LASSERT(conn->ksnc_rx_niov > 0);
-
-		if (nob < (int)iov->iov_len) {
-			iov->iov_len -= nob;
-			iov->iov_base += nob;
-			return -EAGAIN;
-		}
-
-		nob -= iov->iov_len;
-		conn->ksnc_rx_iov = ++iov;
-		conn->ksnc_rx_niov--;
-	} while (nob != 0);
-
-	return rc;
-}
-
-static int
-ksocknal_recv_kiov (ksock_conn_t *conn)
-{
-	lnet_kiov_t *kiov = conn->ksnc_rx_kiov;
-	int nob;
-	int rc;
-	LASSERT(conn->ksnc_rx_nkiov > 0);
-
-	/* Never touch conn->ksnc_rx_kiov or change connection
-	 * status inside ksocknal_lib_recv_iov */
-	rc = ksocknal_lib_recv_kiov(conn);
-
-	if (rc <= 0)
-		return rc;
-
-	/* received something... */
-	nob = rc;
-
-	conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
-	conn->ksnc_rx_deadline =
-		cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-	mb();		       /* order with setting rx_started */
-	conn->ksnc_rx_started = 1;
-
-	conn->ksnc_rx_nob_wanted -= nob;
-	conn->ksnc_rx_nob_left -= nob;
-
-	do {
-		LASSERT(conn->ksnc_rx_nkiov > 0);
-
-		if (nob < (int) kiov->kiov_len) {
-			kiov->kiov_offset += nob;
-			kiov->kiov_len -= nob;
-			return -EAGAIN;
-		}
-
-		nob -= kiov->kiov_len;
-		conn->ksnc_rx_kiov = ++kiov;
-		conn->ksnc_rx_nkiov--;
-	} while (nob != 0);
-
-	return 1;
-}
-
-static int
-ksocknal_receive (ksock_conn_t *conn)
-{
-	/* Return 1 on success, 0 on EOF, < 0 on error.
-	 * Caller checks ksnc_rx_nob_wanted to determine
-	 * progress/completion. */
-	int rc;
-
-	if (ksocknal_data.ksnd_stall_rx != 0) {
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(ksocknal_data.ksnd_stall_rx));
-	}
-
-	rc = ksocknal_connsock_addref(conn);
-	if (rc != 0) {
-		LASSERT (conn->ksnc_closing);
-		return -ESHUTDOWN;
-	}
-
-	for (;;) {
-		if (conn->ksnc_rx_niov != 0)
-			rc = ksocknal_recv_iov (conn);
-		else
-			rc = ksocknal_recv_kiov (conn);
-
-		if (rc <= 0) {
-			/* error/EOF or partial receive */
-			if (rc == -EAGAIN) {
-				rc = 1;
-			} else if (rc == 0 && conn->ksnc_rx_started) {
-				/* EOF in the middle of a message */
-				rc = -EPROTO;
-			}
-			break;
-		}
-
-		/* Completed a fragment */
-
-		if (conn->ksnc_rx_nob_wanted == 0) {
-			rc = 1;
-			break;
-		}
-	}
-
-	ksocknal_connsock_decref(conn);
-	return rc;
-}
-
-void
-ksocknal_tx_done (lnet_ni_t *ni, ksock_tx_t *tx)
-{
-	lnet_msg_t *lnetmsg = tx->tx_lnetmsg;
-	int rc = (tx->tx_resid == 0 && !tx->tx_zc_aborted) ? 0 : -EIO;
-
-	LASSERT(ni != NULL || tx->tx_conn != NULL);
-
-	if (tx->tx_conn != NULL)
-		ksocknal_conn_decref(tx->tx_conn);
-
-	if (ni == NULL && tx->tx_conn != NULL)
-		ni = tx->tx_conn->ksnc_peer->ksnp_ni;
-
-	ksocknal_free_tx (tx);
-	if (lnetmsg != NULL) /* KSOCK_MSG_NOOP go without lnetmsg */
-		lnet_finalize (ni, lnetmsg, rc);
-}
-
-void
-ksocknal_txlist_done (lnet_ni_t *ni, struct list_head *txlist, int error)
-{
-	ksock_tx_t *tx;
-
-	while (!list_empty (txlist)) {
-		tx = list_entry(txlist->next, ksock_tx_t, tx_list);
-
-		if (error && tx->tx_lnetmsg != NULL) {
-			CNETERR("Deleting packet type %d len %d %s->%s\n",
-				le32_to_cpu (tx->tx_lnetmsg->msg_hdr.type),
-				le32_to_cpu (tx->tx_lnetmsg->msg_hdr.payload_length),
-				libcfs_nid2str(le64_to_cpu(tx->tx_lnetmsg->msg_hdr.src_nid)),
-				libcfs_nid2str(le64_to_cpu(tx->tx_lnetmsg->msg_hdr.dest_nid)));
-		} else if (error) {
-			CNETERR("Deleting noop packet\n");
-		}
-
-		list_del(&tx->tx_list);
-
-		LASSERT(atomic_read(&tx->tx_refcount) == 1);
-		ksocknal_tx_done(ni, tx);
-	}
-}
-
-static void
-ksocknal_check_zc_req(ksock_tx_t *tx)
-{
-	ksock_conn_t *conn = tx->tx_conn;
-	ksock_peer_t *peer = conn->ksnc_peer;
-
-	/* Set tx_msg.ksm_zc_cookies[0] to a unique non-zero cookie and add tx
-	 * to ksnp_zc_req_list if some fragment of this message should be sent
-	 * zero-copy.  Our peer will send an ACK containing this cookie when
-	 * she has received this message to tell us we can signal completion.
-	 * tx_msg.ksm_zc_cookies[0] remains non-zero while tx is on
-	 * ksnp_zc_req_list. */
-	LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
-	LASSERT(tx->tx_zc_capable);
-
-	tx->tx_zc_checked = 1;
-
-	if (conn->ksnc_proto == &ksocknal_protocol_v1x ||
-	    !conn->ksnc_zc_capable)
-		return;
-
-	/* assign cookie and queue tx to pending list, it will be released when
-	 * a matching ack is received. See ksocknal_handle_zcack() */
-
-	ksocknal_tx_addref(tx);
-
-	spin_lock(&peer->ksnp_lock);
-
-	/* ZC_REQ is going to be pinned to the peer */
-	tx->tx_deadline =
-		cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-
-	LASSERT(tx->tx_msg.ksm_zc_cookies[0] == 0);
-
-	tx->tx_msg.ksm_zc_cookies[0] = peer->ksnp_zc_next_cookie++;
-
-	if (peer->ksnp_zc_next_cookie == 0)
-		peer->ksnp_zc_next_cookie = SOCKNAL_KEEPALIVE_PING + 1;
-
-	list_add_tail(&tx->tx_zc_list, &peer->ksnp_zc_req_list);
-
-	spin_unlock(&peer->ksnp_lock);
-}
-
-static void
-ksocknal_uncheck_zc_req(ksock_tx_t *tx)
-{
-	ksock_peer_t *peer = tx->tx_conn->ksnc_peer;
-
-	LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
-	LASSERT(tx->tx_zc_capable);
-
-	tx->tx_zc_checked = 0;
-
-	spin_lock(&peer->ksnp_lock);
-
-	if (tx->tx_msg.ksm_zc_cookies[0] == 0) {
-		/* Not waiting for an ACK */
-		spin_unlock(&peer->ksnp_lock);
-		return;
-	}
-
-	tx->tx_msg.ksm_zc_cookies[0] = 0;
-	list_del(&tx->tx_zc_list);
-
-	spin_unlock(&peer->ksnp_lock);
-
-	ksocknal_tx_decref(tx);
-}
-
-static int
-ksocknal_process_transmit (ksock_conn_t *conn, ksock_tx_t *tx)
-{
-	int rc;
-
-	if (tx->tx_zc_capable && !tx->tx_zc_checked)
-		ksocknal_check_zc_req(tx);
-
-	rc = ksocknal_transmit (conn, tx);
-
-	CDEBUG(D_NET, "send(%d) %d\n", tx->tx_resid, rc);
-
-	if (tx->tx_resid == 0) {
-		/* Sent everything OK */
-		LASSERT (rc == 0);
-
-		return 0;
-	}
-
-	if (rc == -EAGAIN)
-		return rc;
-
-	if (rc == -ENOMEM) {
-		static int counter;
-
-		counter++;   /* exponential backoff warnings */
-		if ((counter & (-counter)) == counter)
-			CWARN("%u ENOMEM tx %p\n", counter, conn);
-
-		/* Queue on ksnd_enomem_conns for retry after a timeout */
-		spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-		/* enomem list takes over scheduler's ref... */
-		LASSERT (conn->ksnc_tx_scheduled);
-		list_add_tail(&conn->ksnc_tx_list,
-				  &ksocknal_data.ksnd_enomem_conns);
-		if (!cfs_time_aftereq(cfs_time_add(cfs_time_current(),
-						   SOCKNAL_ENOMEM_RETRY),
-				   ksocknal_data.ksnd_reaper_waketime))
-			wake_up (&ksocknal_data.ksnd_reaper_waitq);
-
-		spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
-		return rc;
-	}
-
-	/* Actual error */
-	LASSERT(rc < 0);
-
-	if (!conn->ksnc_closing) {
-		switch (rc) {
-		case -ECONNRESET:
-			LCONSOLE_WARN("Host %pI4h reset our connection while we were sending data; it may have rebooted.\n",
-				      &conn->ksnc_ipaddr);
-			break;
-		default:
-			LCONSOLE_WARN("There was an unexpected network error while writing to %pI4h: %d.\n",
-				      &conn->ksnc_ipaddr, rc);
-			break;
-		}
-		CDEBUG(D_NET, "[%p] Error %d on write to %s ip %pI4h:%d\n",
-		       conn, rc,
-		       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-		       &conn->ksnc_ipaddr,
-		       conn->ksnc_port);
-	}
-
-	if (tx->tx_zc_checked)
-		ksocknal_uncheck_zc_req(tx);
-
-	/* it's not an error if conn is being closed */
-	ksocknal_close_conn_and_siblings (conn,
-					  (conn->ksnc_closing) ? 0 : rc);
-
-	return rc;
-}
-
-static void
-ksocknal_launch_connection_locked (ksock_route_t *route)
-{
-
-	/* called holding write lock on ksnd_global_lock */
-
-	LASSERT(!route->ksnr_scheduled);
-	LASSERT(!route->ksnr_connecting);
-	LASSERT((ksocknal_route_mask() & ~route->ksnr_connected) != 0);
-
-	route->ksnr_scheduled = 1;	      /* scheduling conn for connd */
-	ksocknal_route_addref(route);	   /* extra ref for connd */
-
-	spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
-
-	list_add_tail(&route->ksnr_connd_list,
-			  &ksocknal_data.ksnd_connd_routes);
-	wake_up(&ksocknal_data.ksnd_connd_waitq);
-
-	spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
-}
-
-void
-ksocknal_launch_all_connections_locked (ksock_peer_t *peer)
-{
-	ksock_route_t *route;
-
-	/* called holding write lock on ksnd_global_lock */
-	for (;;) {
-		/* launch any/all connections that need it */
-		route = ksocknal_find_connectable_route_locked(peer);
-		if (route == NULL)
-			return;
-
-		ksocknal_launch_connection_locked(route);
-	}
-}
-
-ksock_conn_t *
-ksocknal_find_conn_locked(ksock_peer_t *peer, ksock_tx_t *tx, int nonblk)
-{
-	struct list_head *tmp;
-	ksock_conn_t *conn;
-	ksock_conn_t *typed = NULL;
-	ksock_conn_t *fallback = NULL;
-	int tnob = 0;
-	int fnob = 0;
-
-	list_for_each (tmp, &peer->ksnp_conns) {
-		ksock_conn_t *c  = list_entry(tmp, ksock_conn_t, ksnc_list);
-		int nob = atomic_read(&c->ksnc_tx_nob) +
-                                      c->ksnc_sock->sk->sk_wmem_queued;
-		int rc;
-
-		LASSERT(!c->ksnc_closing);
-		LASSERT(c->ksnc_proto != NULL &&
-			c->ksnc_proto->pro_match_tx != NULL);
-
-		rc = c->ksnc_proto->pro_match_tx(c, tx, nonblk);
-
-		switch (rc) {
-		default:
-			LBUG();
-		case SOCKNAL_MATCH_NO: /* protocol rejected the tx */
-			continue;
-
-		case SOCKNAL_MATCH_YES: /* typed connection */
-			if (typed == NULL || tnob > nob ||
-			    (tnob == nob && *ksocknal_tunables.ksnd_round_robin &&
-			     cfs_time_after(typed->ksnc_tx_last_post, c->ksnc_tx_last_post))) {
-				typed = c;
-				tnob  = nob;
-			}
-			break;
-
-		case SOCKNAL_MATCH_MAY: /* fallback connection */
-			if (fallback == NULL || fnob > nob ||
-			    (fnob == nob && *ksocknal_tunables.ksnd_round_robin &&
-			     cfs_time_after(fallback->ksnc_tx_last_post, c->ksnc_tx_last_post))) {
-				fallback = c;
-				fnob = nob;
-			}
-			break;
-		}
-	}
-
-	/* prefer the typed selection */
-	conn = (typed != NULL) ? typed : fallback;
-
-	if (conn != NULL)
-		conn->ksnc_tx_last_post = cfs_time_current();
-
-	return conn;
-}
-
-void
-ksocknal_tx_prep(ksock_conn_t *conn, ksock_tx_t *tx)
-{
-	conn->ksnc_proto->pro_pack(tx);
-
-	atomic_add (tx->tx_nob, &conn->ksnc_tx_nob);
-	ksocknal_conn_addref(conn); /* +1 ref for tx */
-	tx->tx_conn = conn;
-}
-
-void
-ksocknal_queue_tx_locked (ksock_tx_t *tx, ksock_conn_t *conn)
-{
-	ksock_sched_t *sched = conn->ksnc_scheduler;
-	ksock_msg_t *msg = &tx->tx_msg;
-	ksock_tx_t *ztx = NULL;
-	int bufnob = 0;
-
-	/* called holding global lock (read or irq-write) and caller may
-	 * not have dropped this lock between finding conn and calling me,
-	 * so we don't need the {get,put}connsock dance to deref
-	 * ksnc_sock... */
-	LASSERT(!conn->ksnc_closing);
-
-	CDEBUG(D_NET, "Sending to %s ip %pI4h:%d\n",
-		libcfs_id2str(conn->ksnc_peer->ksnp_id),
-		&conn->ksnc_ipaddr,
-		conn->ksnc_port);
-
-	ksocknal_tx_prep(conn, tx);
-
-	/* Ensure the frags we've been given EXACTLY match the number of
-	 * bytes we want to send.  Many TCP/IP stacks disregard any total
-	 * size parameters passed to them and just look at the frags.
-	 *
-	 * We always expect at least 1 mapped fragment containing the
-	 * complete ksocknal message header. */
-	LASSERT(lnet_iov_nob (tx->tx_niov, tx->tx_iov) +
-		lnet_kiov_nob(tx->tx_nkiov, tx->tx_kiov) ==
-		(unsigned int)tx->tx_nob);
-	LASSERT(tx->tx_niov >= 1);
-	LASSERT(tx->tx_resid == tx->tx_nob);
-
-	CDEBUG (D_NET, "Packet %p type %d, nob %d niov %d nkiov %d\n",
-		tx, (tx->tx_lnetmsg != NULL) ? tx->tx_lnetmsg->msg_hdr.type:
-					       KSOCK_MSG_NOOP,
-		tx->tx_nob, tx->tx_niov, tx->tx_nkiov);
-
-	/*
-	 * FIXME: SOCK_WMEM_QUEUED and SOCK_ERROR could block in __DARWIN8__
-	 * but they're used inside spinlocks a lot.
-	 */
-	bufnob = conn->ksnc_sock->sk->sk_wmem_queued;
-	spin_lock_bh(&sched->kss_lock);
-
-	if (list_empty(&conn->ksnc_tx_queue) && bufnob == 0) {
-		/* First packet starts the timeout */
-		conn->ksnc_tx_deadline =
-			cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-		if (conn->ksnc_tx_bufnob > 0) /* something got ACKed */
-			conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
-		conn->ksnc_tx_bufnob = 0;
-		mb(); /* order with adding to tx_queue */
-	}
-
-	if (msg->ksm_type == KSOCK_MSG_NOOP) {
-		/* The packet is noop ZC ACK, try to piggyback the ack_cookie
-		 * on a normal packet so I don't need to send it */
-		LASSERT(msg->ksm_zc_cookies[1] != 0);
-		LASSERT(conn->ksnc_proto->pro_queue_tx_zcack != NULL);
-
-		if (conn->ksnc_proto->pro_queue_tx_zcack(conn, tx, 0))
-			ztx = tx; /* ZC ACK piggybacked on ztx release tx later */
-
-	} else {
-		/* It's a normal packet - can it piggback a noop zc-ack that
-		 * has been queued already? */
-		LASSERT(msg->ksm_zc_cookies[1] == 0);
-		LASSERT(conn->ksnc_proto->pro_queue_tx_msg != NULL);
-
-		ztx = conn->ksnc_proto->pro_queue_tx_msg(conn, tx);
-		/* ztx will be released later */
-	}
-
-	if (ztx != NULL) {
-		atomic_sub (ztx->tx_nob, &conn->ksnc_tx_nob);
-		list_add_tail(&ztx->tx_list, &sched->kss_zombie_noop_txs);
-	}
-
-	if (conn->ksnc_tx_ready &&      /* able to send */
-	    !conn->ksnc_tx_scheduled) { /* not scheduled to send */
-		/* +1 ref for scheduler */
-		ksocknal_conn_addref(conn);
-		list_add_tail (&conn->ksnc_tx_list,
-				   &sched->kss_tx_conns);
-		conn->ksnc_tx_scheduled = 1;
-		wake_up (&sched->kss_waitq);
-	}
-
-	spin_unlock_bh(&sched->kss_lock);
-}
-
-
-ksock_route_t *
-ksocknal_find_connectable_route_locked (ksock_peer_t *peer)
-{
-	unsigned long now = cfs_time_current();
-	struct list_head *tmp;
-	ksock_route_t *route;
-
-	list_for_each (tmp, &peer->ksnp_routes) {
-		route = list_entry (tmp, ksock_route_t, ksnr_list);
-
-		LASSERT(!route->ksnr_connecting || route->ksnr_scheduled);
-
-		if (route->ksnr_scheduled)      /* connections being established */
-			continue;
-
-		/* all route types connected ? */
-		if ((ksocknal_route_mask() & ~route->ksnr_connected) == 0)
-			continue;
-
-		if (!(route->ksnr_retry_interval == 0 || /* first attempt */
-		      cfs_time_aftereq(now, route->ksnr_timeout))) {
-			CDEBUG(D_NET,
-			       "Too soon to retry route %pI4h (cnted %d, interval %ld, %ld secs later)\n",
-			       &route->ksnr_ipaddr,
-			       route->ksnr_connected,
-			       route->ksnr_retry_interval,
-			       cfs_duration_sec(route->ksnr_timeout - now));
-			continue;
-		}
-
-		return route;
-	}
-
-	return NULL;
-}
-
-ksock_route_t *
-ksocknal_find_connecting_route_locked (ksock_peer_t *peer)
-{
-	struct list_head *tmp;
-	ksock_route_t *route;
-
-	list_for_each (tmp, &peer->ksnp_routes) {
-		route = list_entry (tmp, ksock_route_t, ksnr_list);
-
-		LASSERT(!route->ksnr_connecting || route->ksnr_scheduled);
-
-		if (route->ksnr_scheduled)
-			return route;
-	}
-
-	return NULL;
-}
-
-int
-ksocknal_launch_packet (lnet_ni_t *ni, ksock_tx_t *tx, lnet_process_id_t id)
-{
-	ksock_peer_t *peer;
-	ksock_conn_t *conn;
-	rwlock_t *g_lock;
-	int retry;
-	int rc;
-
-	LASSERT(tx->tx_conn == NULL);
-
-	g_lock = &ksocknal_data.ksnd_global_lock;
-
-	for (retry = 0;; retry = 1) {
-		read_lock(g_lock);
-		peer = ksocknal_find_peer_locked(ni, id);
-		if (peer != NULL) {
-			if (ksocknal_find_connectable_route_locked(peer) == NULL) {
-				conn = ksocknal_find_conn_locked(peer, tx, tx->tx_nonblk);
-				if (conn != NULL) {
-					/* I've got no routes that need to be
-					 * connecting and I do have an actual
-					 * connection... */
-					ksocknal_queue_tx_locked (tx, conn);
-					read_unlock(g_lock);
-					return 0;
-				}
-			}
-		}
-
-		/* I'll need a write lock... */
-		read_unlock(g_lock);
-
-		write_lock_bh(g_lock);
-
-		peer = ksocknal_find_peer_locked(ni, id);
-		if (peer != NULL)
-			break;
-
-		write_unlock_bh(g_lock);
-
-		if ((id.pid & LNET_PID_USERFLAG) != 0) {
-			CERROR("Refusing to create a connection to userspace process %s\n",
-			       libcfs_id2str(id));
-			return -EHOSTUNREACH;
-		}
-
-		if (retry) {
-			CERROR("Can't find peer %s\n", libcfs_id2str(id));
-			return -EHOSTUNREACH;
-		}
-
-		rc = ksocknal_add_peer(ni, id,
-				       LNET_NIDADDR(id.nid),
-				       lnet_acceptor_port());
-		if (rc != 0) {
-			CERROR("Can't add peer %s: %d\n",
-			       libcfs_id2str(id), rc);
-			return rc;
-		}
-	}
-
-	ksocknal_launch_all_connections_locked(peer);
-
-	conn = ksocknal_find_conn_locked(peer, tx, tx->tx_nonblk);
-	if (conn != NULL) {
-		/* Connection exists; queue message on it */
-		ksocknal_queue_tx_locked (tx, conn);
-		write_unlock_bh(g_lock);
-		return 0;
-	}
-
-	if (peer->ksnp_accepting > 0 ||
-	    ksocknal_find_connecting_route_locked (peer) != NULL) {
-		/* the message is going to be pinned to the peer */
-		tx->tx_deadline =
-			cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
-
-		/* Queue the message until a connection is established */
-		list_add_tail (&tx->tx_list, &peer->ksnp_tx_queue);
-		write_unlock_bh(g_lock);
-		return 0;
-	}
-
-	write_unlock_bh(g_lock);
-
-	/* NB Routes may be ignored if connections to them failed recently */
-	CNETERR("No usable routes to %s\n", libcfs_id2str(id));
-	return -EHOSTUNREACH;
-}
-
-int
-ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
-{
-	int mpflag = 1;
-	int type = lntmsg->msg_type;
-	lnet_process_id_t target = lntmsg->msg_target;
-	unsigned int payload_niov = lntmsg->msg_niov;
-	struct kvec *payload_iov = lntmsg->msg_iov;
-	lnet_kiov_t *payload_kiov = lntmsg->msg_kiov;
-	unsigned int payload_offset = lntmsg->msg_offset;
-	unsigned int payload_nob = lntmsg->msg_len;
-	ksock_tx_t *tx;
-	int desc_size;
-	int rc;
-
-	/* NB 'private' is different depending on what we're sending.
-	 * Just ignore it... */
-
-	CDEBUG(D_NET, "sending %u bytes in %d frags to %s\n",
-	       payload_nob, payload_niov, libcfs_id2str(target));
-
-	LASSERT(payload_nob == 0 || payload_niov > 0);
-	LASSERT(payload_niov <= LNET_MAX_IOV);
-	/* payload is either all vaddrs or all pages */
-	LASSERT (!(payload_kiov != NULL && payload_iov != NULL));
-	LASSERT (!in_interrupt ());
-
-	if (payload_iov != NULL)
-		desc_size = offsetof(ksock_tx_t,
-				     tx_frags.virt.iov[1 + payload_niov]);
-	else
-		desc_size = offsetof(ksock_tx_t,
-				     tx_frags.paged.kiov[payload_niov]);
-
-	if (lntmsg->msg_vmflush)
-		mpflag = cfs_memory_pressure_get_and_set();
-	tx = ksocknal_alloc_tx(KSOCK_MSG_LNET, desc_size);
-	if (tx == NULL) {
-		CERROR("Can't allocate tx desc type %d size %d\n",
-		       type, desc_size);
-		if (lntmsg->msg_vmflush)
-			cfs_memory_pressure_restore(mpflag);
-		return -ENOMEM;
-	}
-
-	tx->tx_conn = NULL;		     /* set when assigned a conn */
-	tx->tx_lnetmsg = lntmsg;
-
-	if (payload_iov != NULL) {
-		tx->tx_kiov = NULL;
-		tx->tx_nkiov = 0;
-		tx->tx_iov = tx->tx_frags.virt.iov;
-		tx->tx_niov = 1 +
-			      lnet_extract_iov(payload_niov, &tx->tx_iov[1],
-					       payload_niov, payload_iov,
-					       payload_offset, payload_nob);
-	} else {
-		tx->tx_niov = 1;
-		tx->tx_iov = &tx->tx_frags.paged.iov;
-		tx->tx_kiov = tx->tx_frags.paged.kiov;
-		tx->tx_nkiov = lnet_extract_kiov(payload_niov, tx->tx_kiov,
-						 payload_niov, payload_kiov,
-						 payload_offset, payload_nob);
-
-		if (payload_nob >= *ksocknal_tunables.ksnd_zc_min_payload)
-			tx->tx_zc_capable = 1;
-	}
-
-	socklnd_init_msg(&tx->tx_msg, KSOCK_MSG_LNET);
-
-	/* The first fragment will be set later in pro_pack */
-	rc = ksocknal_launch_packet(ni, tx, target);
-	if (!mpflag)
-		cfs_memory_pressure_restore(mpflag);
-
-	if (rc == 0)
-		return 0;
-
-	ksocknal_free_tx(tx);
-	return -EIO;
-}
-
-int
-ksocknal_thread_start(int (*fn)(void *arg), void *arg, char *name)
-{
-	struct task_struct *task = kthread_run(fn, arg, "%s", name);
-
-	if (IS_ERR(task))
-		return PTR_ERR(task);
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-	ksocknal_data.ksnd_nthreads++;
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-	return 0;
-}
-
-void
-ksocknal_thread_fini (void)
-{
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-	ksocknal_data.ksnd_nthreads--;
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-}
-
-int
-ksocknal_new_packet (ksock_conn_t *conn, int nob_to_skip)
-{
-	static char ksocknal_slop_buffer[4096];
-
-	int nob;
-	unsigned int niov;
-	int skipped;
-
-	LASSERT(conn->ksnc_proto != NULL);
-
-	if ((*ksocknal_tunables.ksnd_eager_ack & conn->ksnc_type) != 0) {
-		/* Remind the socket to ack eagerly... */
-		ksocknal_lib_eager_ack(conn);
-	}
-
-	if (nob_to_skip == 0) {	 /* right at next packet boundary now */
-		conn->ksnc_rx_started = 0;
-		mb();		       /* racing with timeout thread */
-
-		switch (conn->ksnc_proto->pro_version) {
-		case  KSOCK_PROTO_V2:
-		case  KSOCK_PROTO_V3:
-			conn->ksnc_rx_state = SOCKNAL_RX_KSM_HEADER;
-			conn->ksnc_rx_iov = (struct kvec *)&conn->ksnc_rx_iov_space;
-			conn->ksnc_rx_iov[0].iov_base = &conn->ksnc_msg;
-
-			conn->ksnc_rx_nob_wanted = offsetof(ksock_msg_t, ksm_u);
-			conn->ksnc_rx_nob_left = offsetof(ksock_msg_t, ksm_u);
-			conn->ksnc_rx_iov[0].iov_len  = offsetof(ksock_msg_t, ksm_u);
-			break;
-
-		case KSOCK_PROTO_V1:
-			/* Receiving bare lnet_hdr_t */
-			conn->ksnc_rx_state = SOCKNAL_RX_LNET_HEADER;
-			conn->ksnc_rx_nob_wanted = sizeof(lnet_hdr_t);
-			conn->ksnc_rx_nob_left = sizeof(lnet_hdr_t);
-
-			conn->ksnc_rx_iov = (struct kvec *)&conn->ksnc_rx_iov_space;
-			conn->ksnc_rx_iov[0].iov_base = &conn->ksnc_msg.ksm_u.lnetmsg;
-			conn->ksnc_rx_iov[0].iov_len = sizeof (lnet_hdr_t);
-			break;
-
-		default:
-			LBUG ();
-		}
-		conn->ksnc_rx_niov = 1;
-
-		conn->ksnc_rx_kiov = NULL;
-		conn->ksnc_rx_nkiov = 0;
-		conn->ksnc_rx_csum = ~0;
-		return 1;
-	}
-
-	/* Set up to skip as much as possible now.  If there's more left
-	 * (ran out of iov entries) we'll get called again */
-
-	conn->ksnc_rx_state = SOCKNAL_RX_SLOP;
-	conn->ksnc_rx_nob_left = nob_to_skip;
-	conn->ksnc_rx_iov = (struct kvec *)&conn->ksnc_rx_iov_space;
-	skipped = 0;
-	niov = 0;
-
-	do {
-		nob = min_t(int, nob_to_skip, sizeof(ksocknal_slop_buffer));
-
-		conn->ksnc_rx_iov[niov].iov_base = ksocknal_slop_buffer;
-		conn->ksnc_rx_iov[niov].iov_len  = nob;
-		niov++;
-		skipped += nob;
-		nob_to_skip -=nob;
-
-	} while (nob_to_skip != 0 &&    /* mustn't overflow conn's rx iov */
-		 niov < sizeof(conn->ksnc_rx_iov_space) / sizeof (struct iovec));
-
-	conn->ksnc_rx_niov = niov;
-	conn->ksnc_rx_kiov = NULL;
-	conn->ksnc_rx_nkiov = 0;
-	conn->ksnc_rx_nob_wanted = skipped;
-	return 0;
-}
-
-static int
-ksocknal_process_receive (ksock_conn_t *conn)
-{
-	lnet_hdr_t *lhdr;
-	lnet_process_id_t *id;
-	int rc;
-
-	LASSERT (atomic_read(&conn->ksnc_conn_refcount) > 0);
-
-	/* NB: sched lock NOT held */
-	/* SOCKNAL_RX_LNET_HEADER is here for backward compatibility */
-	LASSERT(conn->ksnc_rx_state == SOCKNAL_RX_KSM_HEADER ||
-		conn->ksnc_rx_state == SOCKNAL_RX_LNET_PAYLOAD ||
-		conn->ksnc_rx_state == SOCKNAL_RX_LNET_HEADER ||
-		conn->ksnc_rx_state == SOCKNAL_RX_SLOP);
- again:
-	if (conn->ksnc_rx_nob_wanted != 0) {
-		rc = ksocknal_receive(conn);
-
-		if (rc <= 0) {
-			LASSERT (rc != -EAGAIN);
-
-			if (rc == 0)
-				CDEBUG(D_NET, "[%p] EOF from %s ip %pI4h:%d\n",
-				       conn,
-				       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-				       &conn->ksnc_ipaddr,
-				       conn->ksnc_port);
-			else if (!conn->ksnc_closing)
-				CERROR("[%p] Error %d on read from %s ip %pI4h:%d\n",
-				       conn, rc,
-				       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-				       &conn->ksnc_ipaddr,
-				       conn->ksnc_port);
-
-			/* it's not an error if conn is being closed */
-			ksocknal_close_conn_and_siblings (conn,
-							  (conn->ksnc_closing) ? 0 : rc);
-			return (rc == 0 ? -ESHUTDOWN : rc);
-		}
-
-		if (conn->ksnc_rx_nob_wanted != 0) {
-			/* short read */
-			return -EAGAIN;
-		}
-	}
-	switch (conn->ksnc_rx_state) {
-	case SOCKNAL_RX_KSM_HEADER:
-		if (conn->ksnc_flip) {
-			__swab32s(&conn->ksnc_msg.ksm_type);
-			__swab32s(&conn->ksnc_msg.ksm_csum);
-			__swab64s(&conn->ksnc_msg.ksm_zc_cookies[0]);
-			__swab64s(&conn->ksnc_msg.ksm_zc_cookies[1]);
-		}
-
-		if (conn->ksnc_msg.ksm_type != KSOCK_MSG_NOOP &&
-		    conn->ksnc_msg.ksm_type != KSOCK_MSG_LNET) {
-			CERROR("%s: Unknown message type: %x\n",
-			       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-			       conn->ksnc_msg.ksm_type);
-			ksocknal_new_packet(conn, 0);
-			ksocknal_close_conn_and_siblings(conn, -EPROTO);
-			return -EPROTO;
-		}
-
-		if (conn->ksnc_msg.ksm_type == KSOCK_MSG_NOOP &&
-		    conn->ksnc_msg.ksm_csum != 0 &&     /* has checksum */
-		    conn->ksnc_msg.ksm_csum != conn->ksnc_rx_csum) {
-			/* NOOP Checksum error */
-			CERROR("%s: Checksum error, wire:0x%08X data:0x%08X\n",
-			       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-			       conn->ksnc_msg.ksm_csum, conn->ksnc_rx_csum);
-			ksocknal_new_packet(conn, 0);
-			ksocknal_close_conn_and_siblings(conn, -EPROTO);
-			return -EIO;
-		}
-
-		if (conn->ksnc_msg.ksm_zc_cookies[1] != 0) {
-			__u64 cookie = 0;
-
-			LASSERT (conn->ksnc_proto != &ksocknal_protocol_v1x);
-
-			if (conn->ksnc_msg.ksm_type == KSOCK_MSG_NOOP)
-				cookie = conn->ksnc_msg.ksm_zc_cookies[0];
-
-			rc = conn->ksnc_proto->pro_handle_zcack(conn, cookie,
-					       conn->ksnc_msg.ksm_zc_cookies[1]);
-
-			if (rc != 0) {
-				CERROR("%s: Unknown ZC-ACK cookie: %llu, %llu\n",
-				       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-				       cookie, conn->ksnc_msg.ksm_zc_cookies[1]);
-				ksocknal_new_packet(conn, 0);
-				ksocknal_close_conn_and_siblings(conn, -EPROTO);
-				return rc;
-			}
-		}
-
-		if (conn->ksnc_msg.ksm_type == KSOCK_MSG_NOOP) {
-			ksocknal_new_packet (conn, 0);
-			return 0;       /* NOOP is done and just return */
-		}
-
-		conn->ksnc_rx_state = SOCKNAL_RX_LNET_HEADER;
-		conn->ksnc_rx_nob_wanted = sizeof(ksock_lnet_msg_t);
-		conn->ksnc_rx_nob_left = sizeof(ksock_lnet_msg_t);
-
-		conn->ksnc_rx_iov = (struct kvec *)&conn->ksnc_rx_iov_space;
-		conn->ksnc_rx_iov[0].iov_base = &conn->ksnc_msg.ksm_u.lnetmsg;
-		conn->ksnc_rx_iov[0].iov_len  = sizeof(ksock_lnet_msg_t);
-
-		conn->ksnc_rx_niov = 1;
-		conn->ksnc_rx_kiov = NULL;
-		conn->ksnc_rx_nkiov = 0;
-
-		goto again;     /* read lnet header now */
-
-	case SOCKNAL_RX_LNET_HEADER:
-		/* unpack message header */
-		conn->ksnc_proto->pro_unpack(&conn->ksnc_msg);
-
-		if ((conn->ksnc_peer->ksnp_id.pid & LNET_PID_USERFLAG) != 0) {
-			/* Userspace peer */
-			lhdr = &conn->ksnc_msg.ksm_u.lnetmsg.ksnm_hdr;
-			id = &conn->ksnc_peer->ksnp_id;
-
-			/* Substitute process ID assigned at connection time */
-			lhdr->src_pid = cpu_to_le32(id->pid);
-			lhdr->src_nid = cpu_to_le64(id->nid);
-		}
-
-		conn->ksnc_rx_state = SOCKNAL_RX_PARSE;
-		ksocknal_conn_addref(conn);     /* ++ref while parsing */
-
-		rc = lnet_parse(conn->ksnc_peer->ksnp_ni,
-				&conn->ksnc_msg.ksm_u.lnetmsg.ksnm_hdr,
-				conn->ksnc_peer->ksnp_id.nid, conn, 0);
-		if (rc < 0) {
-			/* I just received garbage: give up on this conn */
-			ksocknal_new_packet(conn, 0);
-			ksocknal_close_conn_and_siblings (conn, rc);
-			ksocknal_conn_decref(conn);
-			return -EPROTO;
-		}
-
-		/* I'm racing with ksocknal_recv() */
-		LASSERT (conn->ksnc_rx_state == SOCKNAL_RX_PARSE ||
-			 conn->ksnc_rx_state == SOCKNAL_RX_LNET_PAYLOAD);
-
-		if (conn->ksnc_rx_state != SOCKNAL_RX_LNET_PAYLOAD)
-			return 0;
-
-		/* ksocknal_recv() got called */
-		goto again;
-
-	case SOCKNAL_RX_LNET_PAYLOAD:
-		/* payload all received */
-		rc = 0;
-
-		if (conn->ksnc_rx_nob_left == 0 &&   /* not truncating */
-		    conn->ksnc_msg.ksm_csum != 0 &&  /* has checksum */
-		    conn->ksnc_msg.ksm_csum != conn->ksnc_rx_csum) {
-			CERROR("%s: Checksum error, wire:0x%08X data:0x%08X\n",
-			       libcfs_id2str(conn->ksnc_peer->ksnp_id),
-			       conn->ksnc_msg.ksm_csum, conn->ksnc_rx_csum);
-			rc = -EIO;
-		}
-
-		if (rc == 0 && conn->ksnc_msg.ksm_zc_cookies[0] != 0) {
-			LASSERT(conn->ksnc_proto != &ksocknal_protocol_v1x);
-
-			lhdr = &conn->ksnc_msg.ksm_u.lnetmsg.ksnm_hdr;
-			id = &conn->ksnc_peer->ksnp_id;
-
-			rc = conn->ksnc_proto->pro_handle_zcreq(conn,
-					conn->ksnc_msg.ksm_zc_cookies[0],
-					*ksocknal_tunables.ksnd_nonblk_zcack ||
-					le64_to_cpu(lhdr->src_nid) != id->nid);
-		}
-
-		lnet_finalize(conn->ksnc_peer->ksnp_ni, conn->ksnc_cookie, rc);
-
-		if (rc != 0) {
-			ksocknal_new_packet(conn, 0);
-			ksocknal_close_conn_and_siblings (conn, rc);
-			return -EPROTO;
-		}
-		/* Fall through */
-
-	case SOCKNAL_RX_SLOP:
-		/* starting new packet? */
-		if (ksocknal_new_packet (conn, conn->ksnc_rx_nob_left))
-			return 0;       /* come back later */
-		goto again;	     /* try to finish reading slop now */
-
-	default:
-		break;
-	}
-
-	/* Not Reached */
-	LBUG();
-	return -EINVAL;		       /* keep gcc happy */
-}
-
-int
-ksocknal_recv (lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
-	       unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov,
-	       unsigned int offset, unsigned int mlen, unsigned int rlen)
-{
-	ksock_conn_t *conn = (ksock_conn_t *)private;
-	ksock_sched_t *sched = conn->ksnc_scheduler;
-
-	LASSERT(mlen <= rlen);
-	LASSERT(niov <= LNET_MAX_IOV);
-
-	conn->ksnc_cookie = msg;
-	conn->ksnc_rx_nob_wanted = mlen;
-	conn->ksnc_rx_nob_left = rlen;
-
-	if (mlen == 0 || iov != NULL) {
-		conn->ksnc_rx_nkiov = 0;
-		conn->ksnc_rx_kiov = NULL;
-		conn->ksnc_rx_iov = conn->ksnc_rx_iov_space.iov;
-		conn->ksnc_rx_niov =
-			lnet_extract_iov(LNET_MAX_IOV, conn->ksnc_rx_iov,
-					 niov, iov, offset, mlen);
-	} else {
-		conn->ksnc_rx_niov = 0;
-		conn->ksnc_rx_iov = NULL;
-		conn->ksnc_rx_kiov = conn->ksnc_rx_iov_space.kiov;
-		conn->ksnc_rx_nkiov =
-			lnet_extract_kiov(LNET_MAX_IOV, conn->ksnc_rx_kiov,
-					  niov, kiov, offset, mlen);
-	}
-
-	LASSERT(mlen ==
-		lnet_iov_nob(conn->ksnc_rx_niov, conn->ksnc_rx_iov) +
-		lnet_kiov_nob(conn->ksnc_rx_nkiov, conn->ksnc_rx_kiov));
-
-	LASSERT(conn->ksnc_rx_scheduled);
-
-	spin_lock_bh(&sched->kss_lock);
-
-	switch (conn->ksnc_rx_state) {
-	case SOCKNAL_RX_PARSE_WAIT:
-		list_add_tail(&conn->ksnc_rx_list, &sched->kss_rx_conns);
-		wake_up (&sched->kss_waitq);
-		LASSERT (conn->ksnc_rx_ready);
-		break;
-
-	case SOCKNAL_RX_PARSE:
-		/* scheduler hasn't noticed I'm parsing yet */
-		break;
-	}
-
-	conn->ksnc_rx_state = SOCKNAL_RX_LNET_PAYLOAD;
-
-	spin_unlock_bh(&sched->kss_lock);
-	ksocknal_conn_decref(conn);
-	return 0;
-}
-
-static inline int
-ksocknal_sched_cansleep(ksock_sched_t *sched)
-{
-	int rc;
-
-	spin_lock_bh(&sched->kss_lock);
-
-	rc = !ksocknal_data.ksnd_shuttingdown &&
-	      list_empty(&sched->kss_rx_conns) &&
-	      list_empty(&sched->kss_tx_conns);
-
-	spin_unlock_bh(&sched->kss_lock);
-	return rc;
-}
-
-int ksocknal_scheduler(void *arg)
-{
-	struct ksock_sched_info *info;
-	ksock_sched_t *sched;
-	ksock_conn_t *conn;
-	ksock_tx_t *tx;
-	int rc;
-	int nloops = 0;
-	long id = (long)arg;
-
-	info = ksocknal_data.ksnd_sched_info[KSOCK_THREAD_CPT(id)];
-	sched = &info->ksi_scheds[KSOCK_THREAD_SID(id)];
-
-	cfs_block_allsigs();
-
-	rc = cfs_cpt_bind(lnet_cpt_table(), info->ksi_cpt);
-	if (rc != 0) {
-		CERROR("Can't set CPT affinity to %d: %d\n",
-		       info->ksi_cpt, rc);
-	}
-
-	spin_lock_bh(&sched->kss_lock);
-
-	while (!ksocknal_data.ksnd_shuttingdown) {
-		int did_something = 0;
-
-		/* Ensure I progress everything semi-fairly */
-
-		if (!list_empty (&sched->kss_rx_conns)) {
-			conn = list_entry(sched->kss_rx_conns.next,
-					      ksock_conn_t, ksnc_rx_list);
-			list_del(&conn->ksnc_rx_list);
-
-			LASSERT(conn->ksnc_rx_scheduled);
-			LASSERT(conn->ksnc_rx_ready);
-
-			/* clear rx_ready in case receive isn't complete.
-			 * Do it BEFORE we call process_recv, since
-			 * data_ready can set it any time after we release
-			 * kss_lock. */
-			conn->ksnc_rx_ready = 0;
-			spin_unlock_bh(&sched->kss_lock);
-
-			rc = ksocknal_process_receive(conn);
-
-			spin_lock_bh(&sched->kss_lock);
-
-			/* I'm the only one that can clear this flag */
-			LASSERT(conn->ksnc_rx_scheduled);
-
-			/* Did process_receive get everything it wanted? */
-			if (rc == 0)
-				conn->ksnc_rx_ready = 1;
-
-			if (conn->ksnc_rx_state == SOCKNAL_RX_PARSE) {
-				/* Conn blocked waiting for ksocknal_recv()
-				 * I change its state (under lock) to signal
-				 * it can be rescheduled */
-				conn->ksnc_rx_state = SOCKNAL_RX_PARSE_WAIT;
-			} else if (conn->ksnc_rx_ready) {
-				/* reschedule for rx */
-				list_add_tail (&conn->ksnc_rx_list,
-						   &sched->kss_rx_conns);
-			} else {
-				conn->ksnc_rx_scheduled = 0;
-				/* drop my ref */
-				ksocknal_conn_decref(conn);
-			}
-
-			did_something = 1;
-		}
-
-		if (!list_empty (&sched->kss_tx_conns)) {
-			LIST_HEAD(zlist);
-
-			if (!list_empty(&sched->kss_zombie_noop_txs)) {
-				list_add(&zlist,
-					     &sched->kss_zombie_noop_txs);
-				list_del_init(&sched->kss_zombie_noop_txs);
-			}
-
-			conn = list_entry(sched->kss_tx_conns.next,
-					      ksock_conn_t, ksnc_tx_list);
-			list_del (&conn->ksnc_tx_list);
-
-			LASSERT(conn->ksnc_tx_scheduled);
-			LASSERT(conn->ksnc_tx_ready);
-			LASSERT(!list_empty(&conn->ksnc_tx_queue));
-
-			tx = list_entry(conn->ksnc_tx_queue.next,
-					    ksock_tx_t, tx_list);
-
-			if (conn->ksnc_tx_carrier == tx)
-				ksocknal_next_tx_carrier(conn);
-
-			/* dequeue now so empty list => more to send */
-			list_del(&tx->tx_list);
-
-			/* Clear tx_ready in case send isn't complete.  Do
-			 * it BEFORE we call process_transmit, since
-			 * write_space can set it any time after we release
-			 * kss_lock. */
-			conn->ksnc_tx_ready = 0;
-			spin_unlock_bh(&sched->kss_lock);
-
-			if (!list_empty(&zlist)) {
-				/* free zombie noop txs, it's fast because
-				 * noop txs are just put in freelist */
-				ksocknal_txlist_done(NULL, &zlist, 0);
-			}
-
-			rc = ksocknal_process_transmit(conn, tx);
-
-			if (rc == -ENOMEM || rc == -EAGAIN) {
-				/* Incomplete send: replace tx on HEAD of tx_queue */
-				spin_lock_bh(&sched->kss_lock);
-				list_add(&tx->tx_list,
-					     &conn->ksnc_tx_queue);
-			} else {
-				/* Complete send; tx -ref */
-				ksocknal_tx_decref(tx);
-
-				spin_lock_bh(&sched->kss_lock);
-				/* assume space for more */
-				conn->ksnc_tx_ready = 1;
-			}
-
-			if (rc == -ENOMEM) {
-				/* Do nothing; after a short timeout, this
-				 * conn will be reposted on kss_tx_conns. */
-			} else if (conn->ksnc_tx_ready &&
-				   !list_empty(&conn->ksnc_tx_queue)) {
-				/* reschedule for tx */
-				list_add_tail(&conn->ksnc_tx_list,
-						   &sched->kss_tx_conns);
-			} else {
-				conn->ksnc_tx_scheduled = 0;
-				/* drop my ref */
-				ksocknal_conn_decref(conn);
-			}
-
-			did_something = 1;
-		}
-		if (!did_something ||	   /* nothing to do */
-		    ++nloops == SOCKNAL_RESCHED) { /* hogging CPU? */
-			spin_unlock_bh(&sched->kss_lock);
-
-			nloops = 0;
-
-			if (!did_something) {   /* wait for something to do */
-				rc = wait_event_interruptible_exclusive(
-					sched->kss_waitq,
-					!ksocknal_sched_cansleep(sched));
-				LASSERT (rc == 0);
-			} else {
-				cond_resched();
-			}
-
-			spin_lock_bh(&sched->kss_lock);
-		}
-	}
-
-	spin_unlock_bh(&sched->kss_lock);
-	ksocknal_thread_fini();
-	return 0;
-}
-
-/*
- * Add connection to kss_rx_conns of scheduler
- * and wakeup the scheduler.
- */
-void ksocknal_read_callback (ksock_conn_t *conn)
-{
-	ksock_sched_t *sched;
-
-	sched = conn->ksnc_scheduler;
-
-	spin_lock_bh(&sched->kss_lock);
-
-	conn->ksnc_rx_ready = 1;
-
-	if (!conn->ksnc_rx_scheduled) {  /* not being progressed */
-		list_add_tail(&conn->ksnc_rx_list,
-				  &sched->kss_rx_conns);
-		conn->ksnc_rx_scheduled = 1;
-		/* extra ref for scheduler */
-		ksocknal_conn_addref(conn);
-
-		wake_up (&sched->kss_waitq);
-	}
-	spin_unlock_bh(&sched->kss_lock);
-}
-
-/*
- * Add connection to kss_tx_conns of scheduler
- * and wakeup the scheduler.
- */
-void ksocknal_write_callback (ksock_conn_t *conn)
-{
-	ksock_sched_t *sched;
-
-	sched = conn->ksnc_scheduler;
-
-	spin_lock_bh(&sched->kss_lock);
-
-	conn->ksnc_tx_ready = 1;
-
-	if (!conn->ksnc_tx_scheduled && /* not being progressed */
-	    !list_empty(&conn->ksnc_tx_queue)) { /* packets to send */
-		list_add_tail (&conn->ksnc_tx_list,
-				   &sched->kss_tx_conns);
-		conn->ksnc_tx_scheduled = 1;
-		/* extra ref for scheduler */
-		ksocknal_conn_addref(conn);
-
-		wake_up (&sched->kss_waitq);
-	}
-
-	spin_unlock_bh(&sched->kss_lock);
-}
-
-static ksock_proto_t *
-ksocknal_parse_proto_version (ksock_hello_msg_t *hello)
-{
-	__u32 version = 0;
-
-	if (hello->kshm_magic == LNET_PROTO_MAGIC)
-		version = hello->kshm_version;
-	else if (hello->kshm_magic == __swab32(LNET_PROTO_MAGIC))
-		version = __swab32(hello->kshm_version);
-
-	if (version != 0) {
-#if SOCKNAL_VERSION_DEBUG
-		if (*ksocknal_tunables.ksnd_protocol == 1)
-			return NULL;
-
-		if (*ksocknal_tunables.ksnd_protocol == 2 &&
-		    version == KSOCK_PROTO_V3)
-			return NULL;
-#endif
-		if (version == KSOCK_PROTO_V2)
-			return &ksocknal_protocol_v2x;
-
-		if (version == KSOCK_PROTO_V3)
-			return &ksocknal_protocol_v3x;
-
-		return NULL;
-	}
-
-	if (hello->kshm_magic == le32_to_cpu(LNET_PROTO_TCP_MAGIC)) {
-		lnet_magicversion_t *hmv = (lnet_magicversion_t *)hello;
-
-		CLASSERT(sizeof (lnet_magicversion_t) ==
-			 offsetof (ksock_hello_msg_t, kshm_src_nid));
-
-		if (hmv->version_major == cpu_to_le16 (KSOCK_PROTO_V1_MAJOR) &&
-		    hmv->version_minor == cpu_to_le16 (KSOCK_PROTO_V1_MINOR))
-			return &ksocknal_protocol_v1x;
-	}
-
-	return NULL;
-}
-
-int
-ksocknal_send_hello (lnet_ni_t *ni, ksock_conn_t *conn,
-		     lnet_nid_t peer_nid, ksock_hello_msg_t *hello)
-{
-	/* CAVEAT EMPTOR: this byte flips 'ipaddrs' */
-	ksock_net_t *net = (ksock_net_t *)ni->ni_data;
-
-	LASSERT(hello->kshm_nips <= LNET_MAX_INTERFACES);
-
-	/* rely on caller to hold a ref on socket so it wouldn't disappear */
-	LASSERT(conn->ksnc_proto != NULL);
-
-	hello->kshm_src_nid = ni->ni_nid;
-	hello->kshm_dst_nid = peer_nid;
-	hello->kshm_src_pid = the_lnet.ln_pid;
-
-	hello->kshm_src_incarnation = net->ksnn_incarnation;
-	hello->kshm_ctype = conn->ksnc_type;
-
-	return conn->ksnc_proto->pro_send_hello(conn, hello);
-}
-
-static int
-ksocknal_invert_type(int type)
-{
-	switch (type) {
-	case SOCKLND_CONN_ANY:
-	case SOCKLND_CONN_CONTROL:
-		return type;
-	case SOCKLND_CONN_BULK_IN:
-		return SOCKLND_CONN_BULK_OUT;
-	case SOCKLND_CONN_BULK_OUT:
-		return SOCKLND_CONN_BULK_IN;
-	default:
-		return SOCKLND_CONN_NONE;
-	}
-}
-
-int
-ksocknal_recv_hello (lnet_ni_t *ni, ksock_conn_t *conn,
-		     ksock_hello_msg_t *hello, lnet_process_id_t *peerid,
-		     __u64 *incarnation)
-{
-	/* Return < 0	fatal error
-	 *	0	  success
-	 *	EALREADY   lost connection race
-	 *	EPROTO     protocol version mismatch
-	 */
-	struct socket *sock = conn->ksnc_sock;
-	int active = (conn->ksnc_proto != NULL);
-	int timeout;
-	int proto_match;
-	int rc;
-	ksock_proto_t *proto;
-	lnet_process_id_t recv_id;
-
-	/* socket type set on active connections - not set on passive */
-	LASSERT(!active == !(conn->ksnc_type != SOCKLND_CONN_NONE));
-
-	timeout = active ? *ksocknal_tunables.ksnd_timeout :
-			    lnet_acceptor_timeout();
-
-	rc = lnet_sock_read(sock, &hello->kshm_magic, sizeof (hello->kshm_magic), timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading HELLO from %pI4h\n",
-			rc, &conn->ksnc_ipaddr);
-		LASSERT (rc < 0);
-		return rc;
-	}
-
-	if (hello->kshm_magic != LNET_PROTO_MAGIC &&
-	    hello->kshm_magic != __swab32(LNET_PROTO_MAGIC) &&
-	    hello->kshm_magic != le32_to_cpu (LNET_PROTO_TCP_MAGIC)) {
-		/* Unexpected magic! */
-		CERROR("Bad magic(1) %#08x (%#08x expected) from %pI4h\n",
-		       __cpu_to_le32 (hello->kshm_magic),
-		       LNET_PROTO_TCP_MAGIC,
-		       &conn->ksnc_ipaddr);
-		return -EPROTO;
-	}
-
-	rc = lnet_sock_read(sock, &hello->kshm_version,
-			    sizeof(hello->kshm_version), timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading HELLO from %pI4h\n",
-			rc, &conn->ksnc_ipaddr);
-		LASSERT(rc < 0);
-		return rc;
-	}
-
-	proto = ksocknal_parse_proto_version(hello);
-	if (proto == NULL) {
-		if (!active) {
-			/* unknown protocol from peer, tell peer my protocol */
-			conn->ksnc_proto = &ksocknal_protocol_v3x;
-#if SOCKNAL_VERSION_DEBUG
-			if (*ksocknal_tunables.ksnd_protocol == 2)
-				conn->ksnc_proto = &ksocknal_protocol_v2x;
-			else if (*ksocknal_tunables.ksnd_protocol == 1)
-				conn->ksnc_proto = &ksocknal_protocol_v1x;
-#endif
-			hello->kshm_nips = 0;
-			ksocknal_send_hello(ni, conn, ni->ni_nid, hello);
-		}
-
-		CERROR("Unknown protocol version (%d.x expected) from %pI4h\n",
-		       conn->ksnc_proto->pro_version,
-		       &conn->ksnc_ipaddr);
-
-		return -EPROTO;
-	}
-
-	proto_match = (conn->ksnc_proto == proto);
-	conn->ksnc_proto = proto;
-
-	/* receive the rest of hello message anyway */
-	rc = conn->ksnc_proto->pro_recv_hello(conn, hello, timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading or checking hello from from %pI4h\n",
-		       rc, &conn->ksnc_ipaddr);
-		LASSERT(rc < 0);
-		return rc;
-	}
-
-	*incarnation = hello->kshm_src_incarnation;
-
-	if (hello->kshm_src_nid == LNET_NID_ANY) {
-		CERROR("Expecting a HELLO hdr with a NID, but got LNET_NID_ANY from %pI4h\n",
-		       &conn->ksnc_ipaddr);
-		return -EPROTO;
-	}
-
-	if (!active &&
-	    conn->ksnc_port > LNET_ACCEPTOR_MAX_RESERVED_PORT) {
-		/* Userspace NAL assigns peer process ID from socket */
-		recv_id.pid = conn->ksnc_port | LNET_PID_USERFLAG;
-		recv_id.nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid), conn->ksnc_ipaddr);
-	} else {
-		recv_id.nid = hello->kshm_src_nid;
-		recv_id.pid = hello->kshm_src_pid;
-	}
-
-	if (!active) {
-		*peerid = recv_id;
-
-		/* peer determines type */
-		conn->ksnc_type = ksocknal_invert_type(hello->kshm_ctype);
-		if (conn->ksnc_type == SOCKLND_CONN_NONE) {
-			CERROR("Unexpected type %d from %s ip %pI4h\n",
-				hello->kshm_ctype, libcfs_id2str(*peerid),
-				&conn->ksnc_ipaddr);
-			return -EPROTO;
-		}
-
-		return 0;
-	}
-
-	if (peerid->pid != recv_id.pid ||
-	    peerid->nid != recv_id.nid) {
-		LCONSOLE_ERROR_MSG(0x130, "Connected successfully to %s on host %pI4h, but they claimed they were %s; please check your Lustre configuration.\n",
-				   libcfs_id2str(*peerid),
-				   &conn->ksnc_ipaddr,
-				   libcfs_id2str(recv_id));
-		return -EPROTO;
-	}
-
-	if (hello->kshm_ctype == SOCKLND_CONN_NONE) {
-		/* Possible protocol mismatch or I lost the connection race */
-		return proto_match ? EALREADY : EPROTO;
-	}
-
-	if (ksocknal_invert_type(hello->kshm_ctype) != conn->ksnc_type) {
-		CERROR("Mismatched types: me %d, %s ip %pI4h %d\n",
-			conn->ksnc_type, libcfs_id2str(*peerid),
-			&conn->ksnc_ipaddr,
-			hello->kshm_ctype);
-		return -EPROTO;
-	}
-
-	return 0;
-}
-
-static int
-ksocknal_connect (ksock_route_t *route)
-{
-	LIST_HEAD(zombies);
-	ksock_peer_t *peer = route->ksnr_peer;
-	int type;
-	int wanted;
-	struct socket *sock;
-	unsigned long deadline;
-	int retry_later = 0;
-	int rc = 0;
-
-	deadline = cfs_time_add(cfs_time_current(),
-				cfs_time_seconds(*ksocknal_tunables.ksnd_timeout));
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	LASSERT(route->ksnr_scheduled);
-	LASSERT(!route->ksnr_connecting);
-
-	route->ksnr_connecting = 1;
-
-	for (;;) {
-		wanted = ksocknal_route_mask() & ~route->ksnr_connected;
-
-		/* stop connecting if peer/route got closed under me, or
-		 * route got connected while queued */
-		if (peer->ksnp_closing || route->ksnr_deleted ||
-		    wanted == 0) {
-			retry_later = 0;
-			break;
-		}
-
-		/* reschedule if peer is connecting to me */
-		if (peer->ksnp_accepting > 0) {
-			CDEBUG(D_NET,
-			       "peer %s(%d) already connecting to me, retry later.\n",
-			       libcfs_nid2str(peer->ksnp_id.nid), peer->ksnp_accepting);
-			retry_later = 1;
-		}
-
-		if (retry_later) /* needs reschedule */
-			break;
-
-		if ((wanted & (1 << SOCKLND_CONN_ANY)) != 0) {
-			type = SOCKLND_CONN_ANY;
-		} else if ((wanted & (1 << SOCKLND_CONN_CONTROL)) != 0) {
-			type = SOCKLND_CONN_CONTROL;
-		} else if ((wanted & (1 << SOCKLND_CONN_BULK_IN)) != 0) {
-			type = SOCKLND_CONN_BULK_IN;
-		} else {
-			LASSERT ((wanted & (1 << SOCKLND_CONN_BULK_OUT)) != 0);
-			type = SOCKLND_CONN_BULK_OUT;
-		}
-
-		write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-		if (cfs_time_aftereq(cfs_time_current(), deadline)) {
-			rc = -ETIMEDOUT;
-			lnet_connect_console_error(rc, peer->ksnp_id.nid,
-						   route->ksnr_ipaddr,
-						   route->ksnr_port);
-			goto failed;
-		}
-
-		rc = lnet_connect(&sock, peer->ksnp_id.nid,
-				  route->ksnr_myipaddr,
-				  route->ksnr_ipaddr, route->ksnr_port);
-		if (rc != 0)
-			goto failed;
-
-		rc = ksocknal_create_conn(peer->ksnp_ni, route, sock, type);
-		if (rc < 0) {
-			lnet_connect_console_error(rc, peer->ksnp_id.nid,
-						   route->ksnr_ipaddr,
-						   route->ksnr_port);
-			goto failed;
-		}
-
-		/* A +ve RC means I have to retry because I lost the connection
-		 * race or I have to renegotiate protocol version */
-		retry_later = (rc != 0);
-		if (retry_later)
-			CDEBUG(D_NET, "peer %s: conn race, retry later.\n",
-			       libcfs_nid2str(peer->ksnp_id.nid));
-
-		write_lock_bh(&ksocknal_data.ksnd_global_lock);
-	}
-
-	route->ksnr_scheduled = 0;
-	route->ksnr_connecting = 0;
-
-	if (retry_later) {
-		/* re-queue for attention; this frees me up to handle
-		 * the peer's incoming connection request */
-
-		if (rc == EALREADY ||
-		    (rc == 0 && peer->ksnp_accepting > 0)) {
-			/* We want to introduce a delay before next
-			 * attempt to connect if we lost conn race,
-			 * but the race is resolved quickly usually,
-			 * so min_reconnectms should be good heuristic */
-			route->ksnr_retry_interval =
-				cfs_time_seconds(*ksocknal_tunables.ksnd_min_reconnectms)/1000;
-			route->ksnr_timeout = cfs_time_add(cfs_time_current(),
-							   route->ksnr_retry_interval);
-		}
-
-		ksocknal_launch_connection_locked(route);
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-	return retry_later;
-
- failed:
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	route->ksnr_scheduled = 0;
-	route->ksnr_connecting = 0;
-
-	/* This is a retry rather than a new connection */
-	route->ksnr_retry_interval *= 2;
-	route->ksnr_retry_interval =
-		max(route->ksnr_retry_interval,
-		    cfs_time_seconds(*ksocknal_tunables.ksnd_min_reconnectms)/1000);
-	route->ksnr_retry_interval =
-		min(route->ksnr_retry_interval,
-		    cfs_time_seconds(*ksocknal_tunables.ksnd_max_reconnectms)/1000);
-
-	LASSERT (route->ksnr_retry_interval != 0);
-	route->ksnr_timeout = cfs_time_add(cfs_time_current(),
-					   route->ksnr_retry_interval);
-
-	if (!list_empty(&peer->ksnp_tx_queue) &&
-	    peer->ksnp_accepting == 0 &&
-	    ksocknal_find_connecting_route_locked(peer) == NULL) {
-		ksock_conn_t *conn;
-
-		/* ksnp_tx_queue is queued on a conn on successful
-		 * connection for V1.x and V2.x */
-		if (!list_empty (&peer->ksnp_conns)) {
-			conn = list_entry(peer->ksnp_conns.next,
-					      ksock_conn_t, ksnc_list);
-			LASSERT (conn->ksnc_proto == &ksocknal_protocol_v3x);
-		}
-
-		/* take all the blocked packets while I've got the lock and
-		 * complete below... */
-		list_splice_init(&peer->ksnp_tx_queue, &zombies);
-	}
-
-#if 0	   /* irrelevant with only eager routes */
-	if (!route->ksnr_deleted) {
-		/* make this route least-favourite for re-selection */
-		list_del(&route->ksnr_list);
-		list_add_tail(&route->ksnr_list, &peer->ksnp_routes);
-	}
-#endif
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	ksocknal_peer_failed(peer);
-	ksocknal_txlist_done(peer->ksnp_ni, &zombies, 1);
-	return 0;
-}
-
-/*
- * check whether we need to create more connds.
- * It will try to create new thread if it's necessary, @timeout can
- * be updated if failed to create, so caller wouldn't keep try while
- * running out of resource.
- */
-static int
-ksocknal_connd_check_start(long sec, long *timeout)
-{
-	char name[16];
-	int rc;
-	int total = ksocknal_data.ksnd_connd_starting +
-		    ksocknal_data.ksnd_connd_running;
-
-	if (unlikely(ksocknal_data.ksnd_init < SOCKNAL_INIT_ALL)) {
-		/* still in initializing */
-		return 0;
-	}
-
-	if (total >= *ksocknal_tunables.ksnd_nconnds_max ||
-	    total > ksocknal_data.ksnd_connd_connecting + SOCKNAL_CONND_RESV) {
-		/* can't create more connd, or still have enough
-		 * threads to handle more connecting */
-		return 0;
-	}
-
-	if (list_empty(&ksocknal_data.ksnd_connd_routes)) {
-		/* no pending connecting request */
-		return 0;
-	}
-
-	if (sec - ksocknal_data.ksnd_connd_failed_stamp <= 1) {
-		/* may run out of resource, retry later */
-		*timeout = cfs_time_seconds(1);
-		return 0;
-	}
-
-	if (ksocknal_data.ksnd_connd_starting > 0) {
-		/* serialize starting to avoid flood */
-		return 0;
-	}
-
-	ksocknal_data.ksnd_connd_starting_stamp = sec;
-	ksocknal_data.ksnd_connd_starting++;
-	spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
-
-	/* NB: total is the next id */
-	snprintf(name, sizeof(name), "socknal_cd%02d", total);
-	rc = ksocknal_thread_start(ksocknal_connd, NULL, name);
-
-	spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
-	if (rc == 0)
-		return 1;
-
-	/* we tried ... */
-	LASSERT(ksocknal_data.ksnd_connd_starting > 0);
-	ksocknal_data.ksnd_connd_starting--;
-	ksocknal_data.ksnd_connd_failed_stamp = get_seconds();
-
-	return 1;
-}
-
-/*
- * check whether current thread can exit, it will return 1 if there are too
- * many threads and no creating in past 120 seconds.
- * Also, this function may update @timeout to make caller come back
- * again to recheck these conditions.
- */
-static int
-ksocknal_connd_check_stop(long sec, long *timeout)
-{
-	int val;
-
-	if (unlikely(ksocknal_data.ksnd_init < SOCKNAL_INIT_ALL)) {
-		/* still in initializing */
-		return 0;
-	}
-
-	if (ksocknal_data.ksnd_connd_starting > 0) {
-		/* in progress of starting new thread */
-		return 0;
-	}
-
-	if (ksocknal_data.ksnd_connd_running <=
-	    *ksocknal_tunables.ksnd_nconnds) { /* can't shrink */
-		return 0;
-	}
-
-	/* created thread in past 120 seconds? */
-	val = (int)(ksocknal_data.ksnd_connd_starting_stamp +
-		    SOCKNAL_CONND_TIMEOUT - sec);
-
-	*timeout = (val > 0) ? cfs_time_seconds(val) :
-			       cfs_time_seconds(SOCKNAL_CONND_TIMEOUT);
-	if (val > 0)
-		return 0;
-
-	/* no creating in past 120 seconds */
-
-	return ksocknal_data.ksnd_connd_running >
-	       ksocknal_data.ksnd_connd_connecting + SOCKNAL_CONND_RESV;
-}
-
-/* Go through connd_routes queue looking for a route that we can process
- * right now, @timeout_p can be updated if we need to come back later */
-static ksock_route_t *
-ksocknal_connd_get_route_locked(signed long *timeout_p)
-{
-	ksock_route_t *route;
-	unsigned long now;
-
-	now = cfs_time_current();
-
-	/* connd_routes can contain both pending and ordinary routes */
-	list_for_each_entry (route, &ksocknal_data.ksnd_connd_routes,
-				 ksnr_connd_list) {
-
-		if (route->ksnr_retry_interval == 0 ||
-		    cfs_time_aftereq(now, route->ksnr_timeout))
-			return route;
-
-		if (*timeout_p == MAX_SCHEDULE_TIMEOUT ||
-		    (int)*timeout_p > (int)(route->ksnr_timeout - now))
-			*timeout_p = (int)(route->ksnr_timeout - now);
-	}
-
-	return NULL;
-}
-
-int
-ksocknal_connd (void *arg)
-{
-	spinlock_t *connd_lock = &ksocknal_data.ksnd_connd_lock;
-	ksock_connreq_t *cr;
-	wait_queue_t wait;
-	int nloops = 0;
-	int cons_retry = 0;
-
-	cfs_block_allsigs();
-
-	init_waitqueue_entry(&wait, current);
-
-	spin_lock_bh(connd_lock);
-
-	LASSERT(ksocknal_data.ksnd_connd_starting > 0);
-	ksocknal_data.ksnd_connd_starting--;
-	ksocknal_data.ksnd_connd_running++;
-
-	while (!ksocknal_data.ksnd_shuttingdown) {
-		ksock_route_t *route = NULL;
-		long sec = get_seconds();
-		long timeout = MAX_SCHEDULE_TIMEOUT;
-		int dropped_lock = 0;
-
-		if (ksocknal_connd_check_stop(sec, &timeout)) {
-			/* wakeup another one to check stop */
-			wake_up(&ksocknal_data.ksnd_connd_waitq);
-			break;
-		}
-
-		if (ksocknal_connd_check_start(sec, &timeout)) {
-			/* created new thread */
-			dropped_lock = 1;
-		}
-
-		if (!list_empty(&ksocknal_data.ksnd_connd_connreqs)) {
-			/* Connection accepted by the listener */
-			cr = list_entry(ksocknal_data.ksnd_connd_connreqs. \
-					    next, ksock_connreq_t, ksncr_list);
-
-			list_del(&cr->ksncr_list);
-			spin_unlock_bh(connd_lock);
-			dropped_lock = 1;
-
-			ksocknal_create_conn(cr->ksncr_ni, NULL,
-					     cr->ksncr_sock, SOCKLND_CONN_NONE);
-			lnet_ni_decref(cr->ksncr_ni);
-			LIBCFS_FREE(cr, sizeof(*cr));
-
-			spin_lock_bh(connd_lock);
-		}
-
-		/* Only handle an outgoing connection request if there
-		 * is a thread left to handle incoming connections and
-		 * create new connd */
-		if (ksocknal_data.ksnd_connd_connecting + SOCKNAL_CONND_RESV <
-		    ksocknal_data.ksnd_connd_running) {
-			route = ksocknal_connd_get_route_locked(&timeout);
-		}
-		if (route != NULL) {
-			list_del (&route->ksnr_connd_list);
-			ksocknal_data.ksnd_connd_connecting++;
-			spin_unlock_bh(connd_lock);
-			dropped_lock = 1;
-
-			if (ksocknal_connect(route)) {
-				/* consecutive retry */
-				if (cons_retry++ > SOCKNAL_INSANITY_RECONN) {
-					CWARN("massive consecutive re-connecting to %pI4h\n",
-					      &route->ksnr_ipaddr);
-					cons_retry = 0;
-				}
-			} else {
-				cons_retry = 0;
-			}
-
-			ksocknal_route_decref(route);
-
-			spin_lock_bh(connd_lock);
-			ksocknal_data.ksnd_connd_connecting--;
-		}
-
-		if (dropped_lock) {
-			if (++nloops < SOCKNAL_RESCHED)
-				continue;
-			spin_unlock_bh(connd_lock);
-			nloops = 0;
-			cond_resched();
-			spin_lock_bh(connd_lock);
-			continue;
-		}
-
-		/* Nothing to do for 'timeout'  */
-		set_current_state(TASK_INTERRUPTIBLE);
-		add_wait_queue_exclusive(&ksocknal_data.ksnd_connd_waitq, &wait);
-		spin_unlock_bh(connd_lock);
-
-		nloops = 0;
-		schedule_timeout(timeout);
-
-		remove_wait_queue(&ksocknal_data.ksnd_connd_waitq, &wait);
-		spin_lock_bh(connd_lock);
-	}
-	ksocknal_data.ksnd_connd_running--;
-	spin_unlock_bh(connd_lock);
-
-	ksocknal_thread_fini();
-	return 0;
-}
-
-static ksock_conn_t *
-ksocknal_find_timed_out_conn (ksock_peer_t *peer)
-{
-	/* We're called with a shared lock on ksnd_global_lock */
-	ksock_conn_t *conn;
-	struct list_head *ctmp;
-
-	list_for_each (ctmp, &peer->ksnp_conns) {
-		int error;
-		conn = list_entry (ctmp, ksock_conn_t, ksnc_list);
-
-		/* Don't need the {get,put}connsock dance to deref ksnc_sock */
-		LASSERT(!conn->ksnc_closing);
-
-		/* SOCK_ERROR will reset error code of socket in
-		 * some platform (like Darwin8.x) */
-		error = conn->ksnc_sock->sk->sk_err;
-		if (error != 0) {
-			ksocknal_conn_addref(conn);
-
-			switch (error) {
-			case ECONNRESET:
-				CNETERR("A connection with %s (%pI4h:%d) was reset; it may have rebooted.\n",
-					libcfs_id2str(peer->ksnp_id),
-					&conn->ksnc_ipaddr,
-					conn->ksnc_port);
-				break;
-			case ETIMEDOUT:
-				CNETERR("A connection with %s (%pI4h:%d) timed out; the network or node may be down.\n",
-					libcfs_id2str(peer->ksnp_id),
-					&conn->ksnc_ipaddr,
-					conn->ksnc_port);
-				break;
-			default:
-				CNETERR("An unexpected network error %d occurred with %s (%pI4h:%d\n",
-					error,
-					libcfs_id2str(peer->ksnp_id),
-					&conn->ksnc_ipaddr,
-					conn->ksnc_port);
-				break;
-			}
-
-			return conn;
-		}
-
-		if (conn->ksnc_rx_started &&
-		    cfs_time_aftereq(cfs_time_current(),
-				     conn->ksnc_rx_deadline)) {
-			/* Timed out incomplete incoming message */
-			ksocknal_conn_addref(conn);
-			CNETERR("Timeout receiving from %s (%pI4h:%d), state %d wanted %d left %d\n",
-				libcfs_id2str(peer->ksnp_id),
-				&conn->ksnc_ipaddr,
-				conn->ksnc_port,
-				conn->ksnc_rx_state,
-				conn->ksnc_rx_nob_wanted,
-				conn->ksnc_rx_nob_left);
-			return conn;
-		}
-
-		if ((!list_empty(&conn->ksnc_tx_queue) ||
-		     conn->ksnc_sock->sk->sk_wmem_queued != 0) &&
-		    cfs_time_aftereq(cfs_time_current(),
-				     conn->ksnc_tx_deadline)) {
-			/* Timed out messages queued for sending or
-			 * buffered in the socket's send buffer */
-			ksocknal_conn_addref(conn);
-			CNETERR("Timeout sending data to %s (%pI4h:%d) the network or that node may be down.\n",
-				libcfs_id2str(peer->ksnp_id),
-				&conn->ksnc_ipaddr,
-				conn->ksnc_port);
-			return conn;
-		}
-	}
-
-	return NULL;
-}
-
-static inline void
-ksocknal_flush_stale_txs(ksock_peer_t *peer)
-{
-	ksock_tx_t *tx;
-	LIST_HEAD(stale_txs);
-
-	write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
-	while (!list_empty (&peer->ksnp_tx_queue)) {
-		tx = list_entry (peer->ksnp_tx_queue.next,
-				     ksock_tx_t, tx_list);
-
-		if (!cfs_time_aftereq(cfs_time_current(),
-				      tx->tx_deadline))
-			break;
-
-		list_del (&tx->tx_list);
-		list_add_tail (&tx->tx_list, &stale_txs);
-	}
-
-	write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
-	ksocknal_txlist_done(peer->ksnp_ni, &stale_txs, 1);
-}
-
-static int
-ksocknal_send_keepalive_locked(ksock_peer_t *peer)
-{
-	ksock_sched_t *sched;
-	ksock_conn_t *conn;
-	ksock_tx_t *tx;
-
-	if (list_empty(&peer->ksnp_conns)) /* last_alive will be updated by create_conn */
-		return 0;
-
-	if (peer->ksnp_proto != &ksocknal_protocol_v3x)
-		return 0;
-
-	if (*ksocknal_tunables.ksnd_keepalive <= 0 ||
-	    time_before(cfs_time_current(),
-			cfs_time_add(peer->ksnp_last_alive,
-				     cfs_time_seconds(*ksocknal_tunables.ksnd_keepalive))))
-		return 0;
-
-	if (time_before(cfs_time_current(), peer->ksnp_send_keepalive))
-		return 0;
-
-	/* retry 10 secs later, so we wouldn't put pressure
-	 * on this peer if we failed to send keepalive this time */
-	peer->ksnp_send_keepalive = cfs_time_shift(10);
-
-	conn = ksocknal_find_conn_locked(peer, NULL, 1);
-	if (conn != NULL) {
-		sched = conn->ksnc_scheduler;
-
-		spin_lock_bh(&sched->kss_lock);
-		if (!list_empty(&conn->ksnc_tx_queue)) {
-			spin_unlock_bh(&sched->kss_lock);
-			/* there is an queued ACK, don't need keepalive */
-			return 0;
-		}
-
-		spin_unlock_bh(&sched->kss_lock);
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-
-	/* cookie = 1 is reserved for keepalive PING */
-	tx = ksocknal_alloc_tx_noop(1, 1);
-	if (tx == NULL) {
-		read_lock(&ksocknal_data.ksnd_global_lock);
-		return -ENOMEM;
-	}
-
-	if (ksocknal_launch_packet(peer->ksnp_ni, tx, peer->ksnp_id) == 0) {
-		read_lock(&ksocknal_data.ksnd_global_lock);
-		return 1;
-	}
-
-	ksocknal_free_tx(tx);
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	return -EIO;
-}
-
-
-static void
-ksocknal_check_peer_timeouts (int idx)
-{
-	struct list_head *peers = &ksocknal_data.ksnd_peers[idx];
-	ksock_peer_t *peer;
-	ksock_conn_t *conn;
-	ksock_tx_t *tx;
-
- again:
-	/* NB. We expect to have a look at all the peers and not find any
-	 * connections to time out, so we just use a shared lock while we
-	 * take a look... */
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	list_for_each_entry(peer, peers, ksnp_list) {
-		unsigned long deadline = 0;
-		int resid = 0;
-		int n = 0;
-
-		if (ksocknal_send_keepalive_locked(peer) != 0) {
-			read_unlock(&ksocknal_data.ksnd_global_lock);
-			goto again;
-		}
-
-		conn = ksocknal_find_timed_out_conn (peer);
-
-		if (conn != NULL) {
-			read_unlock(&ksocknal_data.ksnd_global_lock);
-
-			ksocknal_close_conn_and_siblings (conn, -ETIMEDOUT);
-
-			/* NB we won't find this one again, but we can't
-			 * just proceed with the next peer, since we dropped
-			 * ksnd_global_lock and it might be dead already! */
-			ksocknal_conn_decref(conn);
-			goto again;
-		}
-
-		/* we can't process stale txs right here because we're
-		 * holding only shared lock */
-		if (!list_empty (&peer->ksnp_tx_queue)) {
-			ksock_tx_t *tx =
-				list_entry (peer->ksnp_tx_queue.next,
-						ksock_tx_t, tx_list);
-
-			if (cfs_time_aftereq(cfs_time_current(),
-					     tx->tx_deadline)) {
-
-				ksocknal_peer_addref(peer);
-				read_unlock(&ksocknal_data.ksnd_global_lock);
-
-				ksocknal_flush_stale_txs(peer);
-
-				ksocknal_peer_decref(peer);
-				goto again;
-			}
-		}
-
-		if (list_empty(&peer->ksnp_zc_req_list))
-			continue;
-
-		spin_lock(&peer->ksnp_lock);
-		list_for_each_entry(tx, &peer->ksnp_zc_req_list, tx_zc_list) {
-			if (!cfs_time_aftereq(cfs_time_current(),
-					      tx->tx_deadline))
-				break;
-			/* ignore the TX if connection is being closed */
-			if (tx->tx_conn->ksnc_closing)
-				continue;
-			n++;
-		}
-
-		if (n == 0) {
-			spin_unlock(&peer->ksnp_lock);
-			continue;
-		}
-
-		tx = list_entry(peer->ksnp_zc_req_list.next,
-				    ksock_tx_t, tx_zc_list);
-		deadline = tx->tx_deadline;
-		resid = tx->tx_resid;
-		conn = tx->tx_conn;
-		ksocknal_conn_addref(conn);
-
-		spin_unlock(&peer->ksnp_lock);
-		read_unlock(&ksocknal_data.ksnd_global_lock);
-
-		CERROR("Total %d stale ZC_REQs for peer %s detected; the oldest(%p) timed out %ld secs ago, resid: %d, wmem: %d\n",
-		       n, libcfs_nid2str(peer->ksnp_id.nid), tx,
-		       cfs_duration_sec(cfs_time_current() - deadline),
-		       resid, conn->ksnc_sock->sk->sk_wmem_queued);
-
-		ksocknal_close_conn_and_siblings (conn, -ETIMEDOUT);
-		ksocknal_conn_decref(conn);
-		goto again;
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-}
-
-int
-ksocknal_reaper (void *arg)
-{
-	wait_queue_t wait;
-	ksock_conn_t *conn;
-	ksock_sched_t *sched;
-	struct list_head enomem_conns;
-	int nenomem_conns;
-	long timeout;
-	int i;
-	int peer_index = 0;
-	unsigned long deadline = cfs_time_current();
-
-	cfs_block_allsigs();
-
-	INIT_LIST_HEAD(&enomem_conns);
-	init_waitqueue_entry(&wait, current);
-
-	spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-	while (!ksocknal_data.ksnd_shuttingdown) {
-
-		if (!list_empty (&ksocknal_data.ksnd_deathrow_conns)) {
-			conn = list_entry (ksocknal_data. \
-					       ksnd_deathrow_conns.next,
-					       ksock_conn_t, ksnc_list);
-			list_del (&conn->ksnc_list);
-
-			spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-			ksocknal_terminate_conn(conn);
-			ksocknal_conn_decref(conn);
-
-			spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
-			continue;
-		}
-
-		if (!list_empty (&ksocknal_data.ksnd_zombie_conns)) {
-			conn = list_entry (ksocknal_data.ksnd_zombie_conns.\
-					       next, ksock_conn_t, ksnc_list);
-			list_del (&conn->ksnc_list);
-
-			spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-			ksocknal_destroy_conn(conn);
-
-			spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
-			continue;
-		}
-
-		if (!list_empty (&ksocknal_data.ksnd_enomem_conns)) {
-			list_add(&enomem_conns,
-				     &ksocknal_data.ksnd_enomem_conns);
-			list_del_init(&ksocknal_data.ksnd_enomem_conns);
-		}
-
-		spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-		/* reschedule all the connections that stalled with ENOMEM... */
-		nenomem_conns = 0;
-		while (!list_empty (&enomem_conns)) {
-			conn = list_entry (enomem_conns.next,
-					       ksock_conn_t, ksnc_tx_list);
-			list_del (&conn->ksnc_tx_list);
-
-			sched = conn->ksnc_scheduler;
-
-			spin_lock_bh(&sched->kss_lock);
-
-			LASSERT(conn->ksnc_tx_scheduled);
-			conn->ksnc_tx_ready = 1;
-			list_add_tail(&conn->ksnc_tx_list,
-					  &sched->kss_tx_conns);
-			wake_up(&sched->kss_waitq);
-
-			spin_unlock_bh(&sched->kss_lock);
-			nenomem_conns++;
-		}
-
-		/* careful with the jiffy wrap... */
-		while ((timeout = cfs_time_sub(deadline,
-					       cfs_time_current())) <= 0) {
-			const int n = 4;
-			const int p = 1;
-			int chunk = ksocknal_data.ksnd_peer_hash_size;
-
-			/* Time to check for timeouts on a few more peers: I do
-			 * checks every 'p' seconds on a proportion of the peer
-			 * table and I need to check every connection 'n' times
-			 * within a timeout interval, to ensure I detect a
-			 * timeout on any connection within (n+1)/n times the
-			 * timeout interval. */
-
-			if (*ksocknal_tunables.ksnd_timeout > n * p)
-				chunk = (chunk * n * p) /
-					*ksocknal_tunables.ksnd_timeout;
-			if (chunk == 0)
-				chunk = 1;
-
-			for (i = 0; i < chunk; i++) {
-				ksocknal_check_peer_timeouts (peer_index);
-				peer_index = (peer_index + 1) %
-					     ksocknal_data.ksnd_peer_hash_size;
-			}
-
-			deadline = cfs_time_add(deadline, cfs_time_seconds(p));
-		}
-
-		if (nenomem_conns != 0) {
-			/* Reduce my timeout if I rescheduled ENOMEM conns.
-			 * This also prevents me getting woken immediately
-			 * if any go back on my enomem list. */
-			timeout = SOCKNAL_ENOMEM_RETRY;
-		}
-		ksocknal_data.ksnd_reaper_waketime =
-			cfs_time_add(cfs_time_current(), timeout);
-
-		set_current_state (TASK_INTERRUPTIBLE);
-		add_wait_queue (&ksocknal_data.ksnd_reaper_waitq, &wait);
-
-		if (!ksocknal_data.ksnd_shuttingdown &&
-		    list_empty (&ksocknal_data.ksnd_deathrow_conns) &&
-		    list_empty (&ksocknal_data.ksnd_zombie_conns))
-			schedule_timeout(timeout);
-
-		set_current_state (TASK_RUNNING);
-		remove_wait_queue (&ksocknal_data.ksnd_reaper_waitq, &wait);
-
-		spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
-	}
-
-	spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
-
-	ksocknal_thread_fini();
-	return 0;
-}
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
deleted file mode 100644
index 340706110c21..000000000000
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
+++ /dev/null
@@ -1,710 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include "socklnd.h"
-
-int
-ksocknal_lib_get_conn_addrs(ksock_conn_t *conn)
-{
-	int rc = lnet_sock_getaddr(conn->ksnc_sock, 1, &conn->ksnc_ipaddr,
-				   &conn->ksnc_port);
-
-	/* Didn't need the {get,put}connsock dance to deref ksnc_sock... */
-	LASSERT(!conn->ksnc_closing);
-
-	if (rc != 0) {
-		CERROR("Error %d getting sock peer IP\n", rc);
-		return rc;
-	}
-
-	rc = lnet_sock_getaddr(conn->ksnc_sock, 0, &conn->ksnc_myipaddr, NULL);
-	if (rc != 0) {
-		CERROR("Error %d getting sock local IP\n", rc);
-		return rc;
-	}
-
-	return 0;
-}
-
-int
-ksocknal_lib_zc_capable(ksock_conn_t *conn)
-{
-	int caps = conn->ksnc_sock->sk->sk_route_caps;
-
-	if (conn->ksnc_proto == &ksocknal_protocol_v1x)
-		return 0;
-
-	/* ZC if the socket supports scatter/gather and doesn't need software
-	 * checksums */
-	return ((caps & NETIF_F_SG) != 0 && (caps & NETIF_F_ALL_CSUM) != 0);
-}
-
-int
-ksocknal_lib_send_iov(ksock_conn_t *conn, ksock_tx_t *tx)
-{
-	struct socket *sock = conn->ksnc_sock;
-	int nob;
-	int rc;
-
-	if (*ksocknal_tunables.ksnd_enable_csum	&& /* checksum enabled */
-	    conn->ksnc_proto == &ksocknal_protocol_v2x && /* V2.x connection  */
-	    tx->tx_nob == tx->tx_resid		 && /* frist sending    */
-	    tx->tx_msg.ksm_csum == 0)		     /* not checksummed  */
-		ksocknal_lib_csum_tx(tx);
-
-	/* NB we can't trust socket ops to either consume our iovs
-	 * or leave them alone. */
-
-	{
-#if SOCKNAL_SINGLE_FRAG_TX
-		struct kvec scratch;
-		struct kvec *scratchiov = &scratch;
-		unsigned int niov = 1;
-#else
-		struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
-		unsigned int niov = tx->tx_niov;
-#endif
-		struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
-		int i;
-
-		for (nob = i = 0; i < niov; i++) {
-			scratchiov[i] = tx->tx_iov[i];
-			nob += scratchiov[i].iov_len;
-		}
-
-		if (!list_empty(&conn->ksnc_tx_queue) ||
-		    nob < tx->tx_resid)
-			msg.msg_flags |= MSG_MORE;
-
-		rc = kernel_sendmsg(sock, &msg, scratchiov, niov, nob);
-	}
-	return rc;
-}
-
-int
-ksocknal_lib_send_kiov(ksock_conn_t *conn, ksock_tx_t *tx)
-{
-	struct socket *sock = conn->ksnc_sock;
-	lnet_kiov_t *kiov = tx->tx_kiov;
-	int rc;
-	int nob;
-
-	/* Not NOOP message */
-	LASSERT(tx->tx_lnetmsg != NULL);
-
-	/* NB we can't trust socket ops to either consume our iovs
-	 * or leave them alone. */
-	if (tx->tx_msg.ksm_zc_cookies[0] != 0) {
-		/* Zero copy is enabled */
-		struct sock *sk = sock->sk;
-		struct page *page = kiov->kiov_page;
-		int offset = kiov->kiov_offset;
-		int fragsize = kiov->kiov_len;
-		int msgflg = MSG_DONTWAIT;
-
-		CDEBUG(D_NET, "page %p + offset %x for %d\n",
-			       page, offset, kiov->kiov_len);
-
-		if (!list_empty(&conn->ksnc_tx_queue) ||
-		    fragsize < tx->tx_resid)
-			msgflg |= MSG_MORE;
-
-		if (sk->sk_prot->sendpage != NULL) {
-			rc = sk->sk_prot->sendpage(sk, page,
-						   offset, fragsize, msgflg);
-		} else {
-			rc = tcp_sendpage(sk, page, offset, fragsize, msgflg);
-		}
-	} else {
-#if SOCKNAL_SINGLE_FRAG_TX || !SOCKNAL_RISK_KMAP_DEADLOCK
-		struct kvec scratch;
-		struct kvec *scratchiov = &scratch;
-		unsigned int niov = 1;
-#else
-#ifdef CONFIG_HIGHMEM
-#warning "XXX risk of kmap deadlock on multiple frags..."
-#endif
-		struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
-		unsigned int niov = tx->tx_nkiov;
-#endif
-		struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
-		int i;
-
-		for (nob = i = 0; i < niov; i++) {
-			scratchiov[i].iov_base = kmap(kiov[i].kiov_page) +
-						 kiov[i].kiov_offset;
-			nob += scratchiov[i].iov_len = kiov[i].kiov_len;
-		}
-
-		if (!list_empty(&conn->ksnc_tx_queue) ||
-		    nob < tx->tx_resid)
-			msg.msg_flags |= MSG_MORE;
-
-		rc = kernel_sendmsg(sock, &msg, (struct kvec *)scratchiov, niov, nob);
-
-		for (i = 0; i < niov; i++)
-			kunmap(kiov[i].kiov_page);
-	}
-	return rc;
-}
-
-void
-ksocknal_lib_eager_ack(ksock_conn_t *conn)
-{
-	int opt = 1;
-	struct socket *sock = conn->ksnc_sock;
-
-	/* Remind the socket to ACK eagerly.  If I don't, the socket might
-	 * think I'm about to send something it could piggy-back the ACK
-	 * on, introducing delay in completing zero-copy sends in my
-	 * peer. */
-
-	kernel_setsockopt(sock, SOL_TCP, TCP_QUICKACK,
-			       (char *)&opt, sizeof(opt));
-}
-
-int
-ksocknal_lib_recv_iov(ksock_conn_t *conn)
-{
-#if SOCKNAL_SINGLE_FRAG_RX
-	struct kvec scratch;
-	struct kvec *scratchiov = &scratch;
-	unsigned int niov = 1;
-#else
-	struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
-	unsigned int niov = conn->ksnc_rx_niov;
-#endif
-	struct kvec *iov = conn->ksnc_rx_iov;
-	struct msghdr msg = {
-		.msg_flags = 0
-	};
-	int nob;
-	int i;
-	int rc;
-	int fragnob;
-	int sum;
-	__u32 saved_csum;
-
-	/* NB we can't trust socket ops to either consume our iovs
-	 * or leave them alone. */
-	LASSERT(niov > 0);
-
-	for (nob = i = 0; i < niov; i++) {
-		scratchiov[i] = iov[i];
-		nob += scratchiov[i].iov_len;
-	}
-	LASSERT(nob <= conn->ksnc_rx_nob_wanted);
-
-	rc = kernel_recvmsg(conn->ksnc_sock, &msg,
-		scratchiov, niov, nob, MSG_DONTWAIT);
-
-	saved_csum = 0;
-	if (conn->ksnc_proto == &ksocknal_protocol_v2x) {
-		saved_csum = conn->ksnc_msg.ksm_csum;
-		conn->ksnc_msg.ksm_csum = 0;
-	}
-
-	if (saved_csum != 0) {
-		/* accumulate checksum */
-		for (i = 0, sum = rc; sum > 0; i++, sum -= fragnob) {
-			LASSERT(i < niov);
-
-			fragnob = iov[i].iov_len;
-			if (fragnob > sum)
-				fragnob = sum;
-
-			conn->ksnc_rx_csum = ksocknal_csum(conn->ksnc_rx_csum,
-							   iov[i].iov_base, fragnob);
-		}
-		conn->ksnc_msg.ksm_csum = saved_csum;
-	}
-
-	return rc;
-}
-
-static void
-ksocknal_lib_kiov_vunmap(void *addr)
-{
-	if (addr == NULL)
-		return;
-
-	vunmap(addr);
-}
-
-static void *
-ksocknal_lib_kiov_vmap(lnet_kiov_t *kiov, int niov,
-		       struct kvec *iov, struct page **pages)
-{
-	void *addr;
-	int nob;
-	int i;
-
-	if (!*ksocknal_tunables.ksnd_zc_recv || pages == NULL)
-		return NULL;
-
-	LASSERT(niov <= LNET_MAX_IOV);
-
-	if (niov < 2 ||
-	    niov < *ksocknal_tunables.ksnd_zc_recv_min_nfrags)
-		return NULL;
-
-	for (nob = i = 0; i < niov; i++) {
-		if ((kiov[i].kiov_offset != 0 && i > 0) ||
-		    (kiov[i].kiov_offset + kiov[i].kiov_len != PAGE_CACHE_SIZE && i < niov - 1))
-			return NULL;
-
-		pages[i] = kiov[i].kiov_page;
-		nob += kiov[i].kiov_len;
-	}
-
-	addr = vmap(pages, niov, VM_MAP, PAGE_KERNEL);
-	if (addr == NULL)
-		return NULL;
-
-	iov->iov_base = addr + kiov[0].kiov_offset;
-	iov->iov_len = nob;
-
-	return addr;
-}
-
-int
-ksocknal_lib_recv_kiov(ksock_conn_t *conn)
-{
-#if SOCKNAL_SINGLE_FRAG_RX || !SOCKNAL_RISK_KMAP_DEADLOCK
-	struct kvec scratch;
-	struct kvec *scratchiov = &scratch;
-	struct page **pages = NULL;
-	unsigned int niov = 1;
-#else
-#ifdef CONFIG_HIGHMEM
-#warning "XXX risk of kmap deadlock on multiple frags..."
-#endif
-	struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
-	struct page **pages = conn->ksnc_scheduler->kss_rx_scratch_pgs;
-	unsigned int niov = conn->ksnc_rx_nkiov;
-#endif
-	lnet_kiov_t   *kiov = conn->ksnc_rx_kiov;
-	struct msghdr msg = {
-		.msg_flags = 0
-	};
-	int nob;
-	int i;
-	int rc;
-	void *base;
-	void *addr;
-	int sum;
-	int fragnob;
-	int n;
-
-	/* NB we can't trust socket ops to either consume our iovs
-	 * or leave them alone. */
-	addr = ksocknal_lib_kiov_vmap(kiov, niov, scratchiov, pages);
-	if (addr != NULL) {
-		nob = scratchiov[0].iov_len;
-		n = 1;
-
-	} else {
-		for (nob = i = 0; i < niov; i++) {
-			nob += scratchiov[i].iov_len = kiov[i].kiov_len;
-			scratchiov[i].iov_base = kmap(kiov[i].kiov_page) +
-						 kiov[i].kiov_offset;
-		}
-		n = niov;
-	}
-
-	LASSERT(nob <= conn->ksnc_rx_nob_wanted);
-
-	rc = kernel_recvmsg(conn->ksnc_sock, &msg,
-			(struct kvec *)scratchiov, n, nob, MSG_DONTWAIT);
-
-	if (conn->ksnc_msg.ksm_csum != 0) {
-		for (i = 0, sum = rc; sum > 0; i++, sum -= fragnob) {
-			LASSERT(i < niov);
-
-			/* Dang! have to kmap again because I have nowhere to
-                         * stash the mapped address.  But by doing it while the
-                         * page is still mapped, the kernel just bumps the map
-                         * count and returns me the address it stashed. */
-			base = kmap(kiov[i].kiov_page) + kiov[i].kiov_offset;
-			fragnob = kiov[i].kiov_len;
-			if (fragnob > sum)
-				fragnob = sum;
-
-			conn->ksnc_rx_csum = ksocknal_csum(conn->ksnc_rx_csum,
-							   base, fragnob);
-
-			kunmap(kiov[i].kiov_page);
-		}
-	}
-
-	if (addr != NULL) {
-		ksocknal_lib_kiov_vunmap(addr);
-	} else {
-		for (i = 0; i < niov; i++)
-			kunmap(kiov[i].kiov_page);
-	}
-
-	return rc;
-}
-
-void
-ksocknal_lib_csum_tx(ksock_tx_t *tx)
-{
-	int i;
-	__u32 csum;
-	void *base;
-
-	LASSERT(tx->tx_iov[0].iov_base == &tx->tx_msg);
-	LASSERT(tx->tx_conn != NULL);
-	LASSERT(tx->tx_conn->ksnc_proto == &ksocknal_protocol_v2x);
-
-	tx->tx_msg.ksm_csum = 0;
-
-	csum = ksocknal_csum(~0, tx->tx_iov[0].iov_base,
-			     tx->tx_iov[0].iov_len);
-
-	if (tx->tx_kiov != NULL) {
-		for (i = 0; i < tx->tx_nkiov; i++) {
-			base = kmap(tx->tx_kiov[i].kiov_page) +
-			       tx->tx_kiov[i].kiov_offset;
-
-			csum = ksocknal_csum(csum, base, tx->tx_kiov[i].kiov_len);
-
-			kunmap(tx->tx_kiov[i].kiov_page);
-		}
-	} else {
-		for (i = 1; i < tx->tx_niov; i++)
-			csum = ksocknal_csum(csum, tx->tx_iov[i].iov_base,
-					     tx->tx_iov[i].iov_len);
-	}
-
-	if (*ksocknal_tunables.ksnd_inject_csum_error) {
-		csum++;
-		*ksocknal_tunables.ksnd_inject_csum_error = 0;
-	}
-
-	tx->tx_msg.ksm_csum = csum;
-}
-
-int
-ksocknal_lib_get_conn_tunables(ksock_conn_t *conn, int *txmem, int *rxmem, int *nagle)
-{
-	struct socket *sock = conn->ksnc_sock;
-	int len;
-	int rc;
-
-	rc = ksocknal_connsock_addref(conn);
-	if (rc != 0) {
-		LASSERT(conn->ksnc_closing);
-		*txmem = *rxmem = *nagle = 0;
-		return -ESHUTDOWN;
-	}
-
-	rc = lnet_sock_getbuf(sock, txmem, rxmem);
-	if (rc == 0) {
-		len = sizeof(*nagle);
-		rc = kernel_getsockopt(sock, SOL_TCP, TCP_NODELAY,
-					   (char *)nagle, &len);
-	}
-
-	ksocknal_connsock_decref(conn);
-
-	if (rc == 0)
-		*nagle = !*nagle;
-	else
-		*txmem = *rxmem = *nagle = 0;
-
-	return rc;
-}
-
-int
-ksocknal_lib_setup_sock(struct socket *sock)
-{
-	int rc;
-	int option;
-	int keep_idle;
-	int keep_intvl;
-	int keep_count;
-	int do_keepalive;
-	struct linger linger;
-
-	sock->sk->sk_allocation = GFP_NOFS;
-
-	/* Ensure this socket aborts active sends immediately when we close
-	 * it. */
-
-	linger.l_onoff = 0;
-	linger.l_linger = 0;
-
-	rc = kernel_setsockopt(sock, SOL_SOCKET, SO_LINGER,
-			      (char *)&linger, sizeof(linger));
-	if (rc != 0) {
-		CERROR("Can't set SO_LINGER: %d\n", rc);
-		return rc;
-	}
-
-	option = -1;
-	rc = kernel_setsockopt(sock, SOL_TCP, TCP_LINGER2,
-				    (char *)&option, sizeof(option));
-	if (rc != 0) {
-		CERROR("Can't set SO_LINGER2: %d\n", rc);
-		return rc;
-	}
-
-	if (!*ksocknal_tunables.ksnd_nagle) {
-		option = 1;
-
-		rc = kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY,
-					    (char *)&option, sizeof(option));
-		if (rc != 0) {
-			CERROR("Can't disable nagle: %d\n", rc);
-			return rc;
-		}
-	}
-
-	rc = lnet_sock_setbuf(sock, *ksocknal_tunables.ksnd_tx_buffer_size,
-			      *ksocknal_tunables.ksnd_rx_buffer_size);
-	if (rc != 0) {
-		CERROR("Can't set buffer tx %d, rx %d buffers: %d\n",
-			*ksocknal_tunables.ksnd_tx_buffer_size,
-			*ksocknal_tunables.ksnd_rx_buffer_size, rc);
-		return rc;
-	}
-
-/* TCP_BACKOFF_* sockopt tunables unsupported in stock kernels */
-
-	/* snapshot tunables */
-	keep_idle  = *ksocknal_tunables.ksnd_keepalive_idle;
-	keep_count = *ksocknal_tunables.ksnd_keepalive_count;
-	keep_intvl = *ksocknal_tunables.ksnd_keepalive_intvl;
-
-	do_keepalive = (keep_idle > 0 && keep_count > 0 && keep_intvl > 0);
-
-	option = (do_keepalive ? 1 : 0);
-	rc = kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
-			      (char *)&option, sizeof(option));
-	if (rc != 0) {
-		CERROR("Can't set SO_KEEPALIVE: %d\n", rc);
-		return rc;
-	}
-
-	if (!do_keepalive)
-		return 0;
-
-	rc = kernel_setsockopt(sock, SOL_TCP, TCP_KEEPIDLE,
-				    (char *)&keep_idle, sizeof(keep_idle));
-	if (rc != 0) {
-		CERROR("Can't set TCP_KEEPIDLE: %d\n", rc);
-		return rc;
-	}
-
-	rc = kernel_setsockopt(sock, SOL_TCP, TCP_KEEPINTVL,
-				    (char *)&keep_intvl, sizeof(keep_intvl));
-	if (rc != 0) {
-		CERROR("Can't set TCP_KEEPINTVL: %d\n", rc);
-		return rc;
-	}
-
-	rc = kernel_setsockopt(sock, SOL_TCP, TCP_KEEPCNT,
-				    (char *)&keep_count, sizeof(keep_count));
-	if (rc != 0) {
-		CERROR("Can't set TCP_KEEPCNT: %d\n", rc);
-		return rc;
-	}
-
-	return 0;
-}
-
-void
-ksocknal_lib_push_conn(ksock_conn_t *conn)
-{
-	struct sock *sk;
-	struct tcp_sock *tp;
-	int nonagle;
-	int val = 1;
-	int rc;
-
-	rc = ksocknal_connsock_addref(conn);
-	if (rc != 0)			    /* being shut down */
-		return;
-
-	sk = conn->ksnc_sock->sk;
-	tp = tcp_sk(sk);
-
-	lock_sock(sk);
-	nonagle = tp->nonagle;
-	tp->nonagle = 1;
-	release_sock(sk);
-
-	rc = kernel_setsockopt(conn->ksnc_sock, SOL_TCP, TCP_NODELAY,
-				      (char *)&val, sizeof(val));
-	LASSERT(rc == 0);
-
-	lock_sock(sk);
-	tp->nonagle = nonagle;
-	release_sock(sk);
-
-	ksocknal_connsock_decref(conn);
-}
-
-extern void ksocknal_read_callback(ksock_conn_t *conn);
-extern void ksocknal_write_callback(ksock_conn_t *conn);
-/*
- * socket call back in Linux
- */
-static void
-ksocknal_data_ready(struct sock *sk)
-{
-	ksock_conn_t *conn;
-
-	/* interleave correctly with closing sockets... */
-	LASSERT(!in_irq());
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	conn = sk->sk_user_data;
-	if (conn == NULL) {	     /* raced with ksocknal_terminate_conn */
-		LASSERT(sk->sk_data_ready != &ksocknal_data_ready);
-		sk->sk_data_ready(sk);
-	} else
-		ksocknal_read_callback(conn);
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-}
-
-static void
-ksocknal_write_space(struct sock *sk)
-{
-	ksock_conn_t *conn;
-	int wspace;
-	int min_wpace;
-
-	/* interleave correctly with closing sockets... */
-	LASSERT(!in_irq());
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	conn = sk->sk_user_data;
-	wspace = sk_stream_wspace(sk);
-	min_wpace = sk_stream_min_wspace(sk);
-
-	CDEBUG(D_NET, "sk %p wspace %d low water %d conn %p%s%s%s\n",
-	       sk, wspace, min_wpace, conn,
-	       (conn == NULL) ? "" : (conn->ksnc_tx_ready ?
-				      " ready" : " blocked"),
-	       (conn == NULL) ? "" : (conn->ksnc_tx_scheduled ?
-				      " scheduled" : " idle"),
-	       (conn == NULL) ? "" : (list_empty(&conn->ksnc_tx_queue) ?
-				      " empty" : " queued"));
-
-	if (conn == NULL) {	     /* raced with ksocknal_terminate_conn */
-		LASSERT(sk->sk_write_space != &ksocknal_write_space);
-		sk->sk_write_space(sk);
-
-		read_unlock(&ksocknal_data.ksnd_global_lock);
-		return;
-	}
-
-	if (wspace >= min_wpace) {	      /* got enough space */
-		ksocknal_write_callback(conn);
-
-		/* Clear SOCK_NOSPACE _after_ ksocknal_write_callback so the
-		 * ENOMEM check in ksocknal_transmit is race-free (think about
-		 * it). */
-
-		clear_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-}
-
-void
-ksocknal_lib_save_callback(struct socket *sock, ksock_conn_t *conn)
-{
-	conn->ksnc_saved_data_ready = sock->sk->sk_data_ready;
-	conn->ksnc_saved_write_space = sock->sk->sk_write_space;
-}
-
-void
-ksocknal_lib_set_callback(struct socket *sock,  ksock_conn_t *conn)
-{
-	sock->sk->sk_user_data = conn;
-	sock->sk->sk_data_ready = ksocknal_data_ready;
-	sock->sk->sk_write_space = ksocknal_write_space;
-	return;
-}
-
-void
-ksocknal_lib_reset_callback(struct socket *sock, ksock_conn_t *conn)
-{
-	/* Remove conn's network callbacks.
-	 * NB I _have_ to restore the callback, rather than storing a noop,
-	 * since the socket could survive past this module being unloaded!! */
-	sock->sk->sk_data_ready = conn->ksnc_saved_data_ready;
-	sock->sk->sk_write_space = conn->ksnc_saved_write_space;
-
-	/* A callback could be in progress already; they hold a read lock
-	 * on ksnd_global_lock (to serialise with me) and NOOP if
-	 * sk_user_data is NULL. */
-	sock->sk->sk_user_data = NULL;
-
-	return ;
-}
-
-int
-ksocknal_lib_memory_pressure(ksock_conn_t *conn)
-{
-	int rc = 0;
-	ksock_sched_t *sched;
-
-	sched = conn->ksnc_scheduler;
-	spin_lock_bh(&sched->kss_lock);
-
-	if (!test_bit(SOCK_NOSPACE, &conn->ksnc_sock->flags) &&
-	    !conn->ksnc_tx_ready) {
-		/* SOCK_NOSPACE is set when the socket fills
-		 * and cleared in the write_space callback
-		 * (which also sets ksnc_tx_ready).  If
-		 * SOCK_NOSPACE and ksnc_tx_ready are BOTH
-		 * zero, I didn't fill the socket and
-		 * write_space won't reschedule me, so I
-		 * return -ENOMEM to get my caller to retry
-		 * after a timeout */
-		rc = -ENOMEM;
-	}
-
-	spin_unlock_bh(&sched->kss_lock);
-
-	return rc;
-}
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
deleted file mode 100644
index c3ac67698125..000000000000
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- *
- *   Author: Eric Barton <eric@bartonsoftware.com>
- *
- *   Portals is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Portals is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include "socklnd.h"
-
-static int sock_timeout = 50;
-module_param(sock_timeout, int, 0644);
-MODULE_PARM_DESC(sock_timeout, "dead socket timeout (seconds)");
-
-static int credits = 256;
-module_param(credits, int, 0444);
-MODULE_PARM_DESC(credits, "# concurrent sends");
-
-static int peer_credits = 8;
-module_param(peer_credits, int, 0444);
-MODULE_PARM_DESC(peer_credits, "# concurrent sends to 1 peer");
-
-static int peer_buffer_credits;
-module_param(peer_buffer_credits, int, 0444);
-MODULE_PARM_DESC(peer_buffer_credits, "# per-peer router buffer credits");
-
-static int peer_timeout = 180;
-module_param(peer_timeout, int, 0444);
-MODULE_PARM_DESC(peer_timeout, "Seconds without aliveness news to declare peer dead (<=0 to disable)");
-
-/* Number of daemons in each thread pool which is percpt,
- * we will estimate reasonable value based on CPUs if it's not set. */
-static unsigned int nscheds;
-module_param(nscheds, int, 0444);
-MODULE_PARM_DESC(nscheds, "# scheduler daemons in each pool while starting");
-
-static int nconnds = 4;
-module_param(nconnds, int, 0444);
-MODULE_PARM_DESC(nconnds, "# connection daemons while starting");
-
-static int nconnds_max = 64;
-module_param(nconnds_max, int, 0444);
-MODULE_PARM_DESC(nconnds_max, "max # connection daemons");
-
-static int min_reconnectms = 1000;
-module_param(min_reconnectms, int, 0644);
-MODULE_PARM_DESC(min_reconnectms, "min connection retry interval (mS)");
-
-static int max_reconnectms = 60000;
-module_param(max_reconnectms, int, 0644);
-MODULE_PARM_DESC(max_reconnectms, "max connection retry interval (mS)");
-
-# define DEFAULT_EAGER_ACK 0
-static int eager_ack = DEFAULT_EAGER_ACK;
-module_param(eager_ack, int, 0644);
-MODULE_PARM_DESC(eager_ack, "send tcp ack packets eagerly");
-
-static int typed_conns = 1;
-module_param(typed_conns, int, 0444);
-MODULE_PARM_DESC(typed_conns, "use different sockets for bulk");
-
-static int min_bulk = 1<<10;
-module_param(min_bulk, int, 0644);
-MODULE_PARM_DESC(min_bulk, "smallest 'large' message");
-
-# define DEFAULT_BUFFER_SIZE 0
-static int tx_buffer_size = DEFAULT_BUFFER_SIZE;
-module_param(tx_buffer_size, int, 0644);
-MODULE_PARM_DESC(tx_buffer_size, "socket tx buffer size (0 for system default)");
-
-static int rx_buffer_size = DEFAULT_BUFFER_SIZE;
-module_param(rx_buffer_size, int, 0644);
-MODULE_PARM_DESC(rx_buffer_size, "socket rx buffer size (0 for system default)");
-
-static int nagle;
-module_param(nagle, int, 0644);
-MODULE_PARM_DESC(nagle, "enable NAGLE?");
-
-static int round_robin = 1;
-module_param(round_robin, int, 0644);
-MODULE_PARM_DESC(round_robin, "Round robin for multiple interfaces");
-
-static int keepalive = 30;
-module_param(keepalive, int, 0644);
-MODULE_PARM_DESC(keepalive, "# seconds before send keepalive");
-
-static int keepalive_idle = 30;
-module_param(keepalive_idle, int, 0644);
-MODULE_PARM_DESC(keepalive_idle, "# idle seconds before probe");
-
-#define DEFAULT_KEEPALIVE_COUNT  5
-static int keepalive_count = DEFAULT_KEEPALIVE_COUNT;
-module_param(keepalive_count, int, 0644);
-MODULE_PARM_DESC(keepalive_count, "# missed probes == dead");
-
-static int keepalive_intvl = 5;
-module_param(keepalive_intvl, int, 0644);
-MODULE_PARM_DESC(keepalive_intvl, "seconds between probes");
-
-static int enable_csum;
-module_param(enable_csum, int, 0644);
-MODULE_PARM_DESC(enable_csum, "enable check sum");
-
-static int inject_csum_error;
-module_param(inject_csum_error, int, 0644);
-MODULE_PARM_DESC(inject_csum_error, "set non-zero to inject a checksum error");
-
-static int nonblk_zcack = 1;
-module_param(nonblk_zcack, int, 0644);
-MODULE_PARM_DESC(nonblk_zcack, "always send ZC-ACK on non-blocking connection");
-
-static unsigned int zc_min_payload = 16 << 10;
-module_param(zc_min_payload, int, 0644);
-MODULE_PARM_DESC(zc_min_payload, "minimum payload size to zero copy");
-
-static unsigned int zc_recv;
-module_param(zc_recv, int, 0644);
-MODULE_PARM_DESC(zc_recv, "enable ZC recv for Chelsio driver");
-
-static unsigned int zc_recv_min_nfrags = 16;
-module_param(zc_recv_min_nfrags, int, 0644);
-MODULE_PARM_DESC(zc_recv_min_nfrags, "minimum # of fragments to enable ZC recv");
-
-
-#if SOCKNAL_VERSION_DEBUG
-static int protocol = 3;
-module_param(protocol, int, 0644);
-MODULE_PARM_DESC(protocol, "protocol version");
-#endif
-
-ksock_tunables_t ksocknal_tunables;
-
-int ksocknal_tunables_init(void)
-{
-	/* initialize ksocknal_tunables structure */
-	ksocknal_tunables.ksnd_timeout            = &sock_timeout;
-	ksocknal_tunables.ksnd_nscheds            = &nscheds;
-	ksocknal_tunables.ksnd_nconnds            = &nconnds;
-	ksocknal_tunables.ksnd_nconnds_max        = &nconnds_max;
-	ksocknal_tunables.ksnd_min_reconnectms    = &min_reconnectms;
-	ksocknal_tunables.ksnd_max_reconnectms    = &max_reconnectms;
-	ksocknal_tunables.ksnd_eager_ack          = &eager_ack;
-	ksocknal_tunables.ksnd_typed_conns        = &typed_conns;
-	ksocknal_tunables.ksnd_min_bulk           = &min_bulk;
-	ksocknal_tunables.ksnd_tx_buffer_size     = &tx_buffer_size;
-	ksocknal_tunables.ksnd_rx_buffer_size     = &rx_buffer_size;
-	ksocknal_tunables.ksnd_nagle              = &nagle;
-	ksocknal_tunables.ksnd_round_robin        = &round_robin;
-	ksocknal_tunables.ksnd_keepalive          = &keepalive;
-	ksocknal_tunables.ksnd_keepalive_idle     = &keepalive_idle;
-	ksocknal_tunables.ksnd_keepalive_count    = &keepalive_count;
-	ksocknal_tunables.ksnd_keepalive_intvl    = &keepalive_intvl;
-	ksocknal_tunables.ksnd_credits            = &credits;
-	ksocknal_tunables.ksnd_peertxcredits      = &peer_credits;
-	ksocknal_tunables.ksnd_peerrtrcredits     = &peer_buffer_credits;
-	ksocknal_tunables.ksnd_peertimeout        = &peer_timeout;
-	ksocknal_tunables.ksnd_enable_csum        = &enable_csum;
-	ksocknal_tunables.ksnd_inject_csum_error  = &inject_csum_error;
-	ksocknal_tunables.ksnd_nonblk_zcack       = &nonblk_zcack;
-	ksocknal_tunables.ksnd_zc_min_payload     = &zc_min_payload;
-	ksocknal_tunables.ksnd_zc_recv            = &zc_recv;
-	ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
-
-#if SOCKNAL_VERSION_DEBUG
-	ksocknal_tunables.ksnd_protocol           = &protocol;
-#endif
-
-	if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
-		*ksocknal_tunables.ksnd_zc_min_payload = 2 << 10;
-
-	return 0;
-};
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
deleted file mode 100644
index 986bce4c9f3b..000000000000
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
+++ /dev/null
@@ -1,794 +0,0 @@
-/*
- * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
- *
- * Copyright (c) 2012, Intel Corporation.
- *
- *   Author: Zach Brown <zab@zabbo.net>
- *   Author: Peter J. Braam <braam@clusterfs.com>
- *   Author: Phil Schwan <phil@clusterfs.com>
- *   Author: Eric Barton <eric@bartonsoftware.com>
- *
- *   This file is part of Portals, http://www.sf.net/projects/sandiaportals/
- *
- *   Portals is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Portals is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include "socklnd.h"
-
-/*
- * Protocol entries :
- *   pro_send_hello       : send hello message
- *   pro_recv_hello       : receive hello message
- *   pro_pack	     : pack message header
- *   pro_unpack	   : unpack message header
- *   pro_queue_tx_zcack() : Called holding BH lock: kss_lock
- *			  return 1 if ACK is piggybacked, otherwise return 0
- *   pro_queue_tx_msg()   : Called holding BH lock: kss_lock
- *			  return the ACK that piggybacked by my message, or NULL
- *   pro_handle_zcreq()   : handler of incoming ZC-REQ
- *   pro_handle_zcack()   : handler of incoming ZC-ACK
- *   pro_match_tx()       : Called holding glock
- */
-
-static ksock_tx_t *
-ksocknal_queue_tx_msg_v1(ksock_conn_t *conn, ksock_tx_t *tx_msg)
-{
-	/* V1.x, just enqueue it */
-	list_add_tail(&tx_msg->tx_list, &conn->ksnc_tx_queue);
-	return NULL;
-}
-
-void
-ksocknal_next_tx_carrier(ksock_conn_t *conn)
-{
-	ksock_tx_t *tx = conn->ksnc_tx_carrier;
-
-	/* Called holding BH lock: conn->ksnc_scheduler->kss_lock */
-	LASSERT(!list_empty(&conn->ksnc_tx_queue));
-	LASSERT(tx != NULL);
-
-	/* Next TX that can carry ZC-ACK or LNet message */
-	if (tx->tx_list.next == &conn->ksnc_tx_queue) {
-		/* no more packets queued */
-		conn->ksnc_tx_carrier = NULL;
-	} else {
-		conn->ksnc_tx_carrier = list_entry(tx->tx_list.next,
-						       ksock_tx_t, tx_list);
-		LASSERT(conn->ksnc_tx_carrier->tx_msg.ksm_type == tx->tx_msg.ksm_type);
-	}
-}
-
-static int
-ksocknal_queue_tx_zcack_v2(ksock_conn_t *conn,
-			   ksock_tx_t *tx_ack, __u64 cookie)
-{
-	ksock_tx_t *tx = conn->ksnc_tx_carrier;
-
-	LASSERT(tx_ack == NULL ||
-		 tx_ack->tx_msg.ksm_type == KSOCK_MSG_NOOP);
-
-	/*
-	 * Enqueue or piggyback tx_ack / cookie
-	 * . no tx can piggyback cookie of tx_ack (or cookie), just
-	 *   enqueue the tx_ack (if tx_ack != NUL) and return NULL.
-	 * . There is tx can piggyback cookie of tx_ack (or cookie),
-	 *   piggyback the cookie and return the tx.
-	 */
-	if (tx == NULL) {
-		if (tx_ack != NULL) {
-			list_add_tail(&tx_ack->tx_list,
-					  &conn->ksnc_tx_queue);
-			conn->ksnc_tx_carrier = tx_ack;
-		}
-		return 0;
-	}
-
-	if (tx->tx_msg.ksm_type == KSOCK_MSG_NOOP) {
-		/* tx is noop zc-ack, can't piggyback zc-ack cookie */
-		if (tx_ack != NULL)
-			list_add_tail(&tx_ack->tx_list,
-					  &conn->ksnc_tx_queue);
-		return 0;
-	}
-
-	LASSERT(tx->tx_msg.ksm_type == KSOCK_MSG_LNET);
-	LASSERT(tx->tx_msg.ksm_zc_cookies[1] == 0);
-
-	if (tx_ack != NULL)
-		cookie = tx_ack->tx_msg.ksm_zc_cookies[1];
-
-	/* piggyback the zc-ack cookie */
-	tx->tx_msg.ksm_zc_cookies[1] = cookie;
-	/* move on to the next TX which can carry cookie */
-	ksocknal_next_tx_carrier(conn);
-
-	return 1;
-}
-
-static ksock_tx_t *
-ksocknal_queue_tx_msg_v2(ksock_conn_t *conn, ksock_tx_t *tx_msg)
-{
-	ksock_tx_t *tx  = conn->ksnc_tx_carrier;
-
-	/*
-	 * Enqueue tx_msg:
-	 * . If there is no NOOP on the connection, just enqueue
-	 *   tx_msg and return NULL
-	 * . If there is NOOP on the connection, piggyback the cookie
-	 *   and replace the NOOP tx, and return the NOOP tx.
-	 */
-	if (tx == NULL) { /* nothing on queue */
-		list_add_tail(&tx_msg->tx_list, &conn->ksnc_tx_queue);
-		conn->ksnc_tx_carrier = tx_msg;
-		return NULL;
-	}
-
-	if (tx->tx_msg.ksm_type == KSOCK_MSG_LNET) { /* nothing to carry */
-		list_add_tail(&tx_msg->tx_list, &conn->ksnc_tx_queue);
-		return NULL;
-	}
-
-	LASSERT(tx->tx_msg.ksm_type == KSOCK_MSG_NOOP);
-
-	/* There is a noop zc-ack can be piggybacked */
-	tx_msg->tx_msg.ksm_zc_cookies[1] = tx->tx_msg.ksm_zc_cookies[1];
-	ksocknal_next_tx_carrier(conn);
-
-	/* use new_tx to replace the noop zc-ack packet */
-	list_add(&tx_msg->tx_list, &tx->tx_list);
-	list_del(&tx->tx_list);
-
-	return tx;
-}
-
-static int
-ksocknal_queue_tx_zcack_v3(ksock_conn_t *conn,
-			   ksock_tx_t *tx_ack, __u64 cookie)
-{
-	ksock_tx_t *tx;
-
-	if (conn->ksnc_type != SOCKLND_CONN_ACK)
-		return ksocknal_queue_tx_zcack_v2(conn, tx_ack, cookie);
-
-	/* non-blocking ZC-ACK (to router) */
-	LASSERT(tx_ack == NULL ||
-		 tx_ack->tx_msg.ksm_type == KSOCK_MSG_NOOP);
-
-	tx = conn->ksnc_tx_carrier;
-	if (tx == NULL) {
-		if (tx_ack != NULL) {
-			list_add_tail(&tx_ack->tx_list,
-					  &conn->ksnc_tx_queue);
-			conn->ksnc_tx_carrier = tx_ack;
-		}
-		return 0;
-	}
-
-	/* conn->ksnc_tx_carrier != NULL */
-
-	if (tx_ack != NULL)
-		cookie = tx_ack->tx_msg.ksm_zc_cookies[1];
-
-	if (cookie == SOCKNAL_KEEPALIVE_PING) /* ignore keepalive PING */
-		return 1;
-
-	if (tx->tx_msg.ksm_zc_cookies[1] == SOCKNAL_KEEPALIVE_PING) {
-		/* replace the keepalive PING with a real ACK */
-		LASSERT(tx->tx_msg.ksm_zc_cookies[0] == 0);
-		tx->tx_msg.ksm_zc_cookies[1] = cookie;
-		return 1;
-	}
-
-	if (cookie == tx->tx_msg.ksm_zc_cookies[0] ||
-	    cookie == tx->tx_msg.ksm_zc_cookies[1]) {
-		CWARN("%s: duplicated ZC cookie: %llu\n",
-		      libcfs_id2str(conn->ksnc_peer->ksnp_id), cookie);
-		return 1; /* XXX return error in the future */
-	}
-
-	if (tx->tx_msg.ksm_zc_cookies[0] == 0) {
-		/* NOOP tx has only one ZC-ACK cookie, can carry at least one more */
-		if (tx->tx_msg.ksm_zc_cookies[1] > cookie) {
-			tx->tx_msg.ksm_zc_cookies[0] = tx->tx_msg.ksm_zc_cookies[1];
-			tx->tx_msg.ksm_zc_cookies[1] = cookie;
-		} else {
-			tx->tx_msg.ksm_zc_cookies[0] = cookie;
-		}
-
-		if (tx->tx_msg.ksm_zc_cookies[0] - tx->tx_msg.ksm_zc_cookies[1] > 2) {
-			/* not likely to carry more ACKs, skip it to simplify logic */
-			ksocknal_next_tx_carrier(conn);
-		}
-
-		return 1;
-	}
-
-	/* takes two or more cookies already */
-
-	if (tx->tx_msg.ksm_zc_cookies[0] > tx->tx_msg.ksm_zc_cookies[1]) {
-		__u64   tmp = 0;
-
-		/* two separated cookies: (a+2, a) or (a+1, a) */
-		LASSERT(tx->tx_msg.ksm_zc_cookies[0] -
-			 tx->tx_msg.ksm_zc_cookies[1] <= 2);
-
-		if (tx->tx_msg.ksm_zc_cookies[0] -
-		    tx->tx_msg.ksm_zc_cookies[1] == 2) {
-			if (cookie == tx->tx_msg.ksm_zc_cookies[1] + 1)
-				tmp = cookie;
-		} else if (cookie == tx->tx_msg.ksm_zc_cookies[1] - 1) {
-			tmp = tx->tx_msg.ksm_zc_cookies[1];
-		} else if (cookie == tx->tx_msg.ksm_zc_cookies[0] + 1) {
-			tmp = tx->tx_msg.ksm_zc_cookies[0];
-		}
-
-		if (tmp != 0) {
-			/* range of cookies */
-			tx->tx_msg.ksm_zc_cookies[0] = tmp - 1;
-			tx->tx_msg.ksm_zc_cookies[1] = tmp + 1;
-			return 1;
-		}
-
-	} else {
-		/* ksm_zc_cookies[0] < ksm_zc_cookies[1], it is range of cookies */
-		if (cookie >= tx->tx_msg.ksm_zc_cookies[0] &&
-		    cookie <= tx->tx_msg.ksm_zc_cookies[1]) {
-			CWARN("%s: duplicated ZC cookie: %llu\n",
-			      libcfs_id2str(conn->ksnc_peer->ksnp_id), cookie);
-			return 1; /* XXX: return error in the future */
-		}
-
-		if (cookie == tx->tx_msg.ksm_zc_cookies[1] + 1) {
-			tx->tx_msg.ksm_zc_cookies[1] = cookie;
-			return 1;
-		}
-
-		if (cookie == tx->tx_msg.ksm_zc_cookies[0] - 1) {
-			tx->tx_msg.ksm_zc_cookies[0] = cookie;
-			return 1;
-		}
-	}
-
-	/* failed to piggyback ZC-ACK */
-	if (tx_ack != NULL) {
-		list_add_tail(&tx_ack->tx_list, &conn->ksnc_tx_queue);
-		/* the next tx can piggyback at least 1 ACK */
-		ksocknal_next_tx_carrier(conn);
-	}
-
-	return 0;
-}
-
-static int
-ksocknal_match_tx(ksock_conn_t *conn, ksock_tx_t *tx, int nonblk)
-{
-	int nob;
-
-#if SOCKNAL_VERSION_DEBUG
-	if (!*ksocknal_tunables.ksnd_typed_conns)
-		return SOCKNAL_MATCH_YES;
-#endif
-
-	if (tx == NULL || tx->tx_lnetmsg == NULL) {
-		/* noop packet */
-		nob = offsetof(ksock_msg_t, ksm_u);
-	} else {
-		nob = tx->tx_lnetmsg->msg_len +
-		      ((conn->ksnc_proto == &ksocknal_protocol_v1x) ?
-		       sizeof(lnet_hdr_t) : sizeof(ksock_msg_t));
-	}
-
-	/* default checking for typed connection */
-	switch (conn->ksnc_type) {
-	default:
-		CERROR("ksnc_type bad: %u\n", conn->ksnc_type);
-		LBUG();
-	case SOCKLND_CONN_ANY:
-		return SOCKNAL_MATCH_YES;
-
-	case SOCKLND_CONN_BULK_IN:
-		return SOCKNAL_MATCH_MAY;
-
-	case SOCKLND_CONN_BULK_OUT:
-		if (nob < *ksocknal_tunables.ksnd_min_bulk)
-			return SOCKNAL_MATCH_MAY;
-		else
-			return SOCKNAL_MATCH_YES;
-
-	case SOCKLND_CONN_CONTROL:
-		if (nob >= *ksocknal_tunables.ksnd_min_bulk)
-			return SOCKNAL_MATCH_MAY;
-		else
-			return SOCKNAL_MATCH_YES;
-	}
-}
-
-static int
-ksocknal_match_tx_v3(ksock_conn_t *conn, ksock_tx_t *tx, int nonblk)
-{
-	int nob;
-
-	if (tx == NULL || tx->tx_lnetmsg == NULL)
-		nob = offsetof(ksock_msg_t, ksm_u);
-	else
-		nob = tx->tx_lnetmsg->msg_len + sizeof(ksock_msg_t);
-
-	switch (conn->ksnc_type) {
-	default:
-		CERROR("ksnc_type bad: %u\n", conn->ksnc_type);
-		LBUG();
-	case SOCKLND_CONN_ANY:
-		return SOCKNAL_MATCH_NO;
-
-	case SOCKLND_CONN_ACK:
-		if (nonblk)
-			return SOCKNAL_MATCH_YES;
-		else if (tx == NULL || tx->tx_lnetmsg == NULL)
-			return SOCKNAL_MATCH_MAY;
-		else
-			return SOCKNAL_MATCH_NO;
-
-	case SOCKLND_CONN_BULK_OUT:
-		if (nonblk)
-			return SOCKNAL_MATCH_NO;
-		else if (nob < *ksocknal_tunables.ksnd_min_bulk)
-			return SOCKNAL_MATCH_MAY;
-		else
-			return SOCKNAL_MATCH_YES;
-
-	case SOCKLND_CONN_CONTROL:
-		if (nonblk)
-			return SOCKNAL_MATCH_NO;
-		else if (nob >= *ksocknal_tunables.ksnd_min_bulk)
-			return SOCKNAL_MATCH_MAY;
-		else
-			return SOCKNAL_MATCH_YES;
-	}
-}
-
-/* (Sink) handle incoming ZC request from sender */
-static int
-ksocknal_handle_zcreq(ksock_conn_t *c, __u64 cookie, int remote)
-{
-	ksock_peer_t *peer = c->ksnc_peer;
-	ksock_conn_t *conn;
-	ksock_tx_t *tx;
-	int rc;
-
-	read_lock(&ksocknal_data.ksnd_global_lock);
-
-	conn = ksocknal_find_conn_locked(peer, NULL, !!remote);
-	if (conn != NULL) {
-		ksock_sched_t *sched = conn->ksnc_scheduler;
-
-		LASSERT(conn->ksnc_proto->pro_queue_tx_zcack != NULL);
-
-		spin_lock_bh(&sched->kss_lock);
-
-		rc = conn->ksnc_proto->pro_queue_tx_zcack(conn, NULL, cookie);
-
-		spin_unlock_bh(&sched->kss_lock);
-
-		if (rc) { /* piggybacked */
-			read_unlock(&ksocknal_data.ksnd_global_lock);
-			return 0;
-		}
-	}
-
-	read_unlock(&ksocknal_data.ksnd_global_lock);
-
-	/* ACK connection is not ready, or can't piggyback the ACK */
-	tx = ksocknal_alloc_tx_noop(cookie, !!remote);
-	if (tx == NULL)
-		return -ENOMEM;
-
-	rc = ksocknal_launch_packet(peer->ksnp_ni, tx, peer->ksnp_id);
-	if (rc == 0)
-		return 0;
-
-	ksocknal_free_tx(tx);
-	return rc;
-}
-
-/* (Sender) handle ZC_ACK from sink */
-static int
-ksocknal_handle_zcack(ksock_conn_t *conn, __u64 cookie1, __u64 cookie2)
-{
-	ksock_peer_t *peer = conn->ksnc_peer;
-	ksock_tx_t *tx;
-	ksock_tx_t *tmp;
-	LIST_HEAD(zlist);
-	int count;
-
-	if (cookie1 == 0)
-		cookie1 = cookie2;
-
-	count = (cookie1 > cookie2) ? 2 : (cookie2 - cookie1 + 1);
-
-	if (cookie2 == SOCKNAL_KEEPALIVE_PING &&
-	    conn->ksnc_proto == &ksocknal_protocol_v3x) {
-		/* keepalive PING for V3.x, just ignore it */
-		return count == 1 ? 0 : -EPROTO;
-	}
-
-	spin_lock(&peer->ksnp_lock);
-
-	list_for_each_entry_safe(tx, tmp,
-				     &peer->ksnp_zc_req_list, tx_zc_list) {
-		__u64 c = tx->tx_msg.ksm_zc_cookies[0];
-
-		if (c == cookie1 || c == cookie2 || (cookie1 < c && c < cookie2)) {
-			tx->tx_msg.ksm_zc_cookies[0] = 0;
-			list_del(&tx->tx_zc_list);
-			list_add(&tx->tx_zc_list, &zlist);
-
-			if (--count == 0)
-				break;
-		}
-	}
-
-	spin_unlock(&peer->ksnp_lock);
-
-	while (!list_empty(&zlist)) {
-		tx = list_entry(zlist.next, ksock_tx_t, tx_zc_list);
-		list_del(&tx->tx_zc_list);
-		ksocknal_tx_decref(tx);
-	}
-
-	return count == 0 ? 0 : -EPROTO;
-}
-
-static int
-ksocknal_send_hello_v1(ksock_conn_t *conn, ksock_hello_msg_t *hello)
-{
-	struct socket *sock = conn->ksnc_sock;
-	lnet_hdr_t *hdr;
-	lnet_magicversion_t *hmv;
-	int rc;
-	int i;
-
-	CLASSERT(sizeof(lnet_magicversion_t) == offsetof(lnet_hdr_t, src_nid));
-
-	LIBCFS_ALLOC(hdr, sizeof(*hdr));
-	if (hdr == NULL) {
-		CERROR("Can't allocate lnet_hdr_t\n");
-		return -ENOMEM;
-	}
-
-	hmv = (lnet_magicversion_t *)&hdr->dest_nid;
-
-	/* Re-organize V2.x message header to V1.x (lnet_hdr_t)
-	 * header and send out */
-	hmv->magic         = cpu_to_le32 (LNET_PROTO_TCP_MAGIC);
-	hmv->version_major = cpu_to_le16 (KSOCK_PROTO_V1_MAJOR);
-	hmv->version_minor = cpu_to_le16 (KSOCK_PROTO_V1_MINOR);
-
-	if (the_lnet.ln_testprotocompat != 0) {
-		/* single-shot proto check */
-		LNET_LOCK();
-		if ((the_lnet.ln_testprotocompat & 1) != 0) {
-			hmv->version_major++;   /* just different! */
-			the_lnet.ln_testprotocompat &= ~1;
-		}
-		if ((the_lnet.ln_testprotocompat & 2) != 0) {
-			hmv->magic = LNET_PROTO_MAGIC;
-			the_lnet.ln_testprotocompat &= ~2;
-		}
-		LNET_UNLOCK();
-	}
-
-	hdr->src_nid = cpu_to_le64 (hello->kshm_src_nid);
-	hdr->src_pid = cpu_to_le32 (hello->kshm_src_pid);
-	hdr->type = cpu_to_le32 (LNET_MSG_HELLO);
-	hdr->payload_length = cpu_to_le32 (hello->kshm_nips * sizeof(__u32));
-	hdr->msg.hello.type = cpu_to_le32 (hello->kshm_ctype);
-	hdr->msg.hello.incarnation = cpu_to_le64 (hello->kshm_src_incarnation);
-
-	rc = lnet_sock_write(sock, hdr, sizeof(*hdr), lnet_acceptor_timeout());
-	if (rc != 0) {
-		CNETERR("Error %d sending HELLO hdr to %pI4h/%d\n",
-			rc, &conn->ksnc_ipaddr, conn->ksnc_port);
-		goto out;
-	}
-
-	if (hello->kshm_nips == 0)
-		goto out;
-
-	for (i = 0; i < (int) hello->kshm_nips; i++) {
-		hello->kshm_ips[i] = __cpu_to_le32 (hello->kshm_ips[i]);
-	}
-
-	rc = lnet_sock_write(sock, hello->kshm_ips,
-			     hello->kshm_nips * sizeof(__u32),
-			     lnet_acceptor_timeout());
-	if (rc != 0) {
-		CNETERR("Error %d sending HELLO payload (%d) to %pI4h/%d\n",
-			rc, hello->kshm_nips,
-			&conn->ksnc_ipaddr, conn->ksnc_port);
-	}
-out:
-	LIBCFS_FREE(hdr, sizeof(*hdr));
-
-	return rc;
-}
-
-static int
-ksocknal_send_hello_v2(ksock_conn_t *conn, ksock_hello_msg_t *hello)
-{
-	struct socket *sock = conn->ksnc_sock;
-	int rc;
-
-	hello->kshm_magic   = LNET_PROTO_MAGIC;
-	hello->kshm_version = conn->ksnc_proto->pro_version;
-
-	if (the_lnet.ln_testprotocompat != 0) {
-		/* single-shot proto check */
-		LNET_LOCK();
-		if ((the_lnet.ln_testprotocompat & 1) != 0) {
-			hello->kshm_version++;   /* just different! */
-			the_lnet.ln_testprotocompat &= ~1;
-		}
-		LNET_UNLOCK();
-	}
-
-	rc = lnet_sock_write(sock, hello, offsetof(ksock_hello_msg_t, kshm_ips),
-			     lnet_acceptor_timeout());
-	if (rc != 0) {
-		CNETERR("Error %d sending HELLO hdr to %pI4h/%d\n",
-			rc, &conn->ksnc_ipaddr, conn->ksnc_port);
-		return rc;
-	}
-
-	if (hello->kshm_nips == 0)
-		return 0;
-
-	rc = lnet_sock_write(sock, hello->kshm_ips,
-			     hello->kshm_nips * sizeof(__u32),
-			     lnet_acceptor_timeout());
-	if (rc != 0) {
-		CNETERR("Error %d sending HELLO payload (%d) to %pI4h/%d\n",
-			rc, hello->kshm_nips,
-			&conn->ksnc_ipaddr, conn->ksnc_port);
-	}
-
-	return rc;
-}
-
-static int
-ksocknal_recv_hello_v1(ksock_conn_t *conn, ksock_hello_msg_t *hello,
-		       int timeout)
-{
-	struct socket *sock = conn->ksnc_sock;
-	lnet_hdr_t *hdr;
-	int rc;
-	int i;
-
-	LIBCFS_ALLOC(hdr, sizeof(*hdr));
-	if (hdr == NULL) {
-		CERROR("Can't allocate lnet_hdr_t\n");
-		return -ENOMEM;
-	}
-
-	rc = lnet_sock_read(sock, &hdr->src_nid,
-			    sizeof(*hdr) - offsetof(lnet_hdr_t, src_nid),
-			    timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading rest of HELLO hdr from %pI4h\n",
-			rc, &conn->ksnc_ipaddr);
-		LASSERT(rc < 0 && rc != -EALREADY);
-		goto out;
-	}
-
-	/* ...and check we got what we expected */
-	if (hdr->type != cpu_to_le32 (LNET_MSG_HELLO)) {
-		CERROR("Expecting a HELLO hdr, but got type %d from %pI4h\n",
-		       le32_to_cpu(hdr->type),
-		       &conn->ksnc_ipaddr);
-		rc = -EPROTO;
-		goto out;
-	}
-
-	hello->kshm_src_nid         = le64_to_cpu(hdr->src_nid);
-	hello->kshm_src_pid         = le32_to_cpu(hdr->src_pid);
-	hello->kshm_src_incarnation = le64_to_cpu(hdr->msg.hello.incarnation);
-	hello->kshm_ctype           = le32_to_cpu(hdr->msg.hello.type);
-	hello->kshm_nips            = le32_to_cpu(hdr->payload_length) /
-						  sizeof(__u32);
-
-	if (hello->kshm_nips > LNET_MAX_INTERFACES) {
-		CERROR("Bad nips %d from ip %pI4h\n",
-		       hello->kshm_nips, &conn->ksnc_ipaddr);
-		rc = -EPROTO;
-		goto out;
-	}
-
-	if (hello->kshm_nips == 0)
-		goto out;
-
-	rc = lnet_sock_read(sock, hello->kshm_ips,
-			    hello->kshm_nips * sizeof(__u32), timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading IPs from ip %pI4h\n",
-			rc, &conn->ksnc_ipaddr);
-		LASSERT(rc < 0 && rc != -EALREADY);
-		goto out;
-	}
-
-	for (i = 0; i < (int) hello->kshm_nips; i++) {
-		hello->kshm_ips[i] = __le32_to_cpu(hello->kshm_ips[i]);
-
-		if (hello->kshm_ips[i] == 0) {
-			CERROR("Zero IP[%d] from ip %pI4h\n",
-			       i, &conn->ksnc_ipaddr);
-			rc = -EPROTO;
-			break;
-		}
-	}
-out:
-	LIBCFS_FREE(hdr, sizeof(*hdr));
-
-	return rc;
-}
-
-static int
-ksocknal_recv_hello_v2(ksock_conn_t *conn, ksock_hello_msg_t *hello, int timeout)
-{
-	struct socket *sock = conn->ksnc_sock;
-	int rc;
-	int i;
-
-	if (hello->kshm_magic == LNET_PROTO_MAGIC)
-		conn->ksnc_flip = 0;
-	else
-		conn->ksnc_flip = 1;
-
-	rc = lnet_sock_read(sock, &hello->kshm_src_nid,
-			    offsetof(ksock_hello_msg_t, kshm_ips) -
-				     offsetof(ksock_hello_msg_t, kshm_src_nid),
-			    timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading HELLO from %pI4h\n",
-			rc, &conn->ksnc_ipaddr);
-		LASSERT(rc < 0 && rc != -EALREADY);
-		return rc;
-	}
-
-	if (conn->ksnc_flip) {
-		__swab32s(&hello->kshm_src_pid);
-		__swab64s(&hello->kshm_src_nid);
-		__swab32s(&hello->kshm_dst_pid);
-		__swab64s(&hello->kshm_dst_nid);
-		__swab64s(&hello->kshm_src_incarnation);
-		__swab64s(&hello->kshm_dst_incarnation);
-		__swab32s(&hello->kshm_ctype);
-		__swab32s(&hello->kshm_nips);
-	}
-
-	if (hello->kshm_nips > LNET_MAX_INTERFACES) {
-		CERROR("Bad nips %d from ip %pI4h\n",
-		       hello->kshm_nips, &conn->ksnc_ipaddr);
-		return -EPROTO;
-	}
-
-	if (hello->kshm_nips == 0)
-		return 0;
-
-	rc = lnet_sock_read(sock, hello->kshm_ips,
-			    hello->kshm_nips * sizeof(__u32), timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading IPs from ip %pI4h\n",
-			rc, &conn->ksnc_ipaddr);
-		LASSERT(rc < 0 && rc != -EALREADY);
-		return rc;
-	}
-
-	for (i = 0; i < (int) hello->kshm_nips; i++) {
-		if (conn->ksnc_flip)
-			__swab32s(&hello->kshm_ips[i]);
-
-		if (hello->kshm_ips[i] == 0) {
-			CERROR("Zero IP[%d] from ip %pI4h\n",
-			       i, &conn->ksnc_ipaddr);
-			return -EPROTO;
-		}
-	}
-
-	return 0;
-}
-
-static void
-ksocknal_pack_msg_v1(ksock_tx_t *tx)
-{
-	/* V1.x has no KSOCK_MSG_NOOP */
-	LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
-	LASSERT(tx->tx_lnetmsg != NULL);
-
-	tx->tx_iov[0].iov_base = &tx->tx_lnetmsg->msg_hdr;
-	tx->tx_iov[0].iov_len  = sizeof(lnet_hdr_t);
-
-	tx->tx_resid = tx->tx_nob = tx->tx_lnetmsg->msg_len + sizeof(lnet_hdr_t);
-}
-
-static void
-ksocknal_pack_msg_v2(ksock_tx_t *tx)
-{
-	tx->tx_iov[0].iov_base = &tx->tx_msg;
-
-	if (tx->tx_lnetmsg != NULL) {
-		LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
-
-		tx->tx_msg.ksm_u.lnetmsg.ksnm_hdr = tx->tx_lnetmsg->msg_hdr;
-		tx->tx_iov[0].iov_len = sizeof(ksock_msg_t);
-		tx->tx_resid = tx->tx_nob = sizeof(ksock_msg_t) + tx->tx_lnetmsg->msg_len;
-	} else {
-		LASSERT(tx->tx_msg.ksm_type == KSOCK_MSG_NOOP);
-
-		tx->tx_iov[0].iov_len = offsetof(ksock_msg_t, ksm_u.lnetmsg.ksnm_hdr);
-		tx->tx_resid = tx->tx_nob = offsetof(ksock_msg_t,  ksm_u.lnetmsg.ksnm_hdr);
-	}
-	/* Don't checksum before start sending, because packet can be piggybacked with ACK */
-}
-
-static void
-ksocknal_unpack_msg_v1(ksock_msg_t *msg)
-{
-	msg->ksm_csum = 0;
-	msg->ksm_type = KSOCK_MSG_LNET;
-	msg->ksm_zc_cookies[0] = msg->ksm_zc_cookies[1]  = 0;
-}
-
-static void
-ksocknal_unpack_msg_v2(ksock_msg_t *msg)
-{
-	return;  /* Do nothing */
-}
-
-ksock_proto_t  ksocknal_protocol_v1x = {
-	.pro_version        = KSOCK_PROTO_V1,
-	.pro_send_hello     = ksocknal_send_hello_v1,
-	.pro_recv_hello     = ksocknal_recv_hello_v1,
-	.pro_pack           = ksocknal_pack_msg_v1,
-	.pro_unpack         = ksocknal_unpack_msg_v1,
-	.pro_queue_tx_msg   = ksocknal_queue_tx_msg_v1,
-	.pro_handle_zcreq   = NULL,
-	.pro_handle_zcack   = NULL,
-	.pro_queue_tx_zcack = NULL,
-	.pro_match_tx       = ksocknal_match_tx
-};
-
-ksock_proto_t  ksocknal_protocol_v2x = {
-	.pro_version        = KSOCK_PROTO_V2,
-	.pro_send_hello     = ksocknal_send_hello_v2,
-	.pro_recv_hello     = ksocknal_recv_hello_v2,
-	.pro_pack           = ksocknal_pack_msg_v2,
-	.pro_unpack         = ksocknal_unpack_msg_v2,
-	.pro_queue_tx_msg   = ksocknal_queue_tx_msg_v2,
-	.pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v2,
-	.pro_handle_zcreq   = ksocknal_handle_zcreq,
-	.pro_handle_zcack   = ksocknal_handle_zcack,
-	.pro_match_tx       = ksocknal_match_tx
-};
-
-ksock_proto_t  ksocknal_protocol_v3x = {
-	.pro_version        = KSOCK_PROTO_V3,
-	.pro_send_hello     = ksocknal_send_hello_v2,
-	.pro_recv_hello     = ksocknal_recv_hello_v2,
-	.pro_pack           = ksocknal_pack_msg_v2,
-	.pro_unpack         = ksocknal_unpack_msg_v2,
-	.pro_queue_tx_msg   = ksocknal_queue_tx_msg_v2,
-	.pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v3,
-	.pro_handle_zcreq   = ksocknal_handle_zcreq,
-	.pro_handle_zcack   = ksocknal_handle_zcack,
-	.pro_match_tx       = ksocknal_match_tx_v3
-};
diff --git a/drivers/staging/lustre/lnet/lnet/Makefile b/drivers/staging/lustre/lnet/lnet/Makefile
deleted file mode 100644
index 52492fb10f85..000000000000
--- a/drivers/staging/lustre/lnet/lnet/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-obj-$(CONFIG_LNET) += lnet.o
-
-lnet-y := api-ni.o config.o					\
-	  lib-me.o lib-msg.o lib-eq.o lib-md.o lib-ptl.o	\
-	  lib-socket.o lib-move.o module.o lo.o			\
-	  router.o router_proc.o acceptor.o peer.o
diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
deleted file mode 100644
index 99f8396f3822..000000000000
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include <linux/completion.h>
-#include "../../include/linux/lnet/lib-lnet.h"
-
-static int   accept_port    = 988;
-static int   accept_backlog = 127;
-static int   accept_timeout = 5;
-
-static struct {
-	int			pta_shutdown;
-	struct socket		*pta_sock;
-	struct completion	pta_signal;
-} lnet_acceptor_state;
-
-int
-lnet_acceptor_port(void)
-{
-	return accept_port;
-}
-EXPORT_SYMBOL(lnet_acceptor_port);
-
-static inline int
-lnet_accept_magic(__u32 magic, __u32 constant)
-{
-	return (magic == constant ||
-		magic == __swab32(constant));
-}
-
-static char *accept = "secure";
-
-module_param(accept, charp, 0444);
-MODULE_PARM_DESC(accept, "Accept connections (secure|all|none)");
-module_param(accept_port, int, 0444);
-MODULE_PARM_DESC(accept_port, "Acceptor's port (same on all nodes)");
-module_param(accept_backlog, int, 0444);
-MODULE_PARM_DESC(accept_backlog, "Acceptor's listen backlog");
-module_param(accept_timeout, int, 0644);
-MODULE_PARM_DESC(accept_timeout, "Acceptor's timeout (seconds)");
-
-static char *accept_type;
-
-static int
-lnet_acceptor_get_tunables(void)
-{
-	/* Userland acceptor uses 'accept_type' instead of 'accept', due to
-	 * conflict with 'accept(2)', but kernel acceptor still uses 'accept'
-	 * for compatibility. Hence the trick. */
-	accept_type = accept;
-	return 0;
-}
-
-int
-lnet_acceptor_timeout(void)
-{
-	return accept_timeout;
-}
-EXPORT_SYMBOL(lnet_acceptor_timeout);
-
-void
-lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
-			   __u32 peer_ip, int peer_port)
-{
-	switch (rc) {
-	/* "normal" errors */
-	case -ECONNREFUSED:
-		CNETERR("Connection to %s at host %pI4h on port %d was refused: check that Lustre is running on that node.\n",
-			libcfs_nid2str(peer_nid),
-			&peer_ip, peer_port);
-		break;
-	case -EHOSTUNREACH:
-	case -ENETUNREACH:
-		CNETERR("Connection to %s at host %pI4h was unreachable: the network or that node may be down, or Lustre may be misconfigured.\n",
-			libcfs_nid2str(peer_nid), &peer_ip);
-		break;
-	case -ETIMEDOUT:
-		CNETERR("Connection to %s at host %pI4h on port %d took too long: that node may be hung or experiencing high load.\n",
-			libcfs_nid2str(peer_nid),
-			&peer_ip, peer_port);
-		break;
-	case -ECONNRESET:
-		LCONSOLE_ERROR_MSG(0x11b, "Connection to %s at host %pI4h on port %d was reset: is it running a compatible version of Lustre and is %s one of its NIDs?\n",
-				   libcfs_nid2str(peer_nid),
-				   &peer_ip, peer_port,
-				   libcfs_nid2str(peer_nid));
-		break;
-	case -EPROTO:
-		LCONSOLE_ERROR_MSG(0x11c, "Protocol error connecting to %s at host %pI4h on port %d: is it running a compatible version of Lustre?\n",
-				   libcfs_nid2str(peer_nid),
-				   &peer_ip, peer_port);
-		break;
-	case -EADDRINUSE:
-		LCONSOLE_ERROR_MSG(0x11d, "No privileged ports available to connect to %s at host %pI4h on port %d\n",
-				   libcfs_nid2str(peer_nid),
-				   &peer_ip, peer_port);
-		break;
-	default:
-		LCONSOLE_ERROR_MSG(0x11e, "Unexpected error %d connecting to %s at host %pI4h on port %d\n",
-				   rc, libcfs_nid2str(peer_nid),
-				   &peer_ip, peer_port);
-		break;
-	}
-}
-EXPORT_SYMBOL(lnet_connect_console_error);
-
-int
-lnet_connect(struct socket **sockp, lnet_nid_t peer_nid,
-	    __u32 local_ip, __u32 peer_ip, int peer_port)
-{
-	lnet_acceptor_connreq_t cr;
-	struct socket *sock;
-	int rc;
-	int port;
-	int fatal;
-
-	CLASSERT(sizeof(cr) <= 16);	    /* not too big to be on the stack */
-
-	for (port = LNET_ACCEPTOR_MAX_RESERVED_PORT;
-	     port >= LNET_ACCEPTOR_MIN_RESERVED_PORT;
-	     --port) {
-		/* Iterate through reserved ports. */
-
-		rc = lnet_sock_connect(&sock, &fatal, local_ip, port, peer_ip,
-				       peer_port);
-		if (rc != 0) {
-			if (fatal)
-				goto failed;
-			continue;
-		}
-
-		CLASSERT(LNET_PROTO_ACCEPTOR_VERSION == 1);
-
-		cr.acr_magic   = LNET_PROTO_ACCEPTOR_MAGIC;
-		cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
-		cr.acr_nid     = peer_nid;
-
-		if (the_lnet.ln_testprotocompat != 0) {
-			/* single-shot proto check */
-			lnet_net_lock(LNET_LOCK_EX);
-			if ((the_lnet.ln_testprotocompat & 4) != 0) {
-				cr.acr_version++;
-				the_lnet.ln_testprotocompat &= ~4;
-			}
-			if ((the_lnet.ln_testprotocompat & 8) != 0) {
-				cr.acr_magic = LNET_PROTO_MAGIC;
-				the_lnet.ln_testprotocompat &= ~8;
-			}
-			lnet_net_unlock(LNET_LOCK_EX);
-		}
-
-		rc = lnet_sock_write(sock, &cr, sizeof(cr), accept_timeout);
-		if (rc != 0)
-			goto failed_sock;
-
-		*sockp = sock;
-		return 0;
-	}
-
-	rc = -EADDRINUSE;
-	goto failed;
-
- failed_sock:
-	sock_release(sock);
- failed:
-	lnet_connect_console_error(rc, peer_nid, peer_ip, peer_port);
-	return rc;
-}
-EXPORT_SYMBOL(lnet_connect);
-
-
-/* Below is the code common for both kernel and MT user-space */
-
-static int
-lnet_accept(struct socket *sock, __u32 magic)
-{
-	lnet_acceptor_connreq_t cr;
-	__u32 peer_ip;
-	int peer_port;
-	int rc;
-	int flip;
-	lnet_ni_t *ni;
-	char *str;
-
-	LASSERT(sizeof(cr) <= 16);	     /* not too big for the stack */
-
-	rc = lnet_sock_getaddr(sock, 1, &peer_ip, &peer_port);
-	LASSERT(rc == 0);		      /* we succeeded before */
-
-	if (!lnet_accept_magic(magic, LNET_PROTO_ACCEPTOR_MAGIC)) {
-
-		if (lnet_accept_magic(magic, LNET_PROTO_MAGIC)) {
-			/* future version compatibility!
-			 * When LNET unifies protocols over all LNDs, the first
-			 * thing sent will be a version query.  I send back
-			 * LNET_PROTO_ACCEPTOR_MAGIC to tell her I'm "old" */
-
-			memset(&cr, 0, sizeof(cr));
-			cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
-			cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
-			rc = lnet_sock_write(sock, &cr, sizeof(cr),
-					     accept_timeout);
-
-			if (rc != 0)
-				CERROR("Error sending magic+version in response to LNET magic from %pI4h: %d\n",
-				       &peer_ip, rc);
-			return -EPROTO;
-		}
-
-		if (magic == le32_to_cpu(LNET_PROTO_TCP_MAGIC))
-			str = "'old' socknal/tcpnal";
-		else
-			str = "unrecognised";
-
-		LCONSOLE_ERROR_MSG(0x11f, "Refusing connection from %pI4h magic %08x: %s acceptor protocol\n",
-				   &peer_ip, magic, str);
-		return -EPROTO;
-	}
-
-	flip = (magic != LNET_PROTO_ACCEPTOR_MAGIC);
-
-	rc = lnet_sock_read(sock, &cr.acr_version, sizeof(cr.acr_version),
-			    accept_timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading connection request version from %pI4h\n",
-			rc, &peer_ip);
-		return -EIO;
-	}
-
-	if (flip)
-		__swab32s(&cr.acr_version);
-
-	if (cr.acr_version != LNET_PROTO_ACCEPTOR_VERSION) {
-		/* future version compatibility!
-		 * An acceptor-specific protocol rev will first send a version
-		 * query.  I send back my current version to tell her I'm
-		 * "old". */
-		int peer_version = cr.acr_version;
-
-		memset(&cr, 0, sizeof(cr));
-		cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
-		cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
-
-		rc = lnet_sock_write(sock, &cr, sizeof(cr), accept_timeout);
-		if (rc != 0)
-			CERROR("Error sending magic+version in response to version %d from %pI4h: %d\n",
-			       peer_version, &peer_ip, rc);
-		return -EPROTO;
-	}
-
-	rc = lnet_sock_read(sock, &cr.acr_nid,
-			    sizeof(cr) -
-			    offsetof(lnet_acceptor_connreq_t, acr_nid),
-			    accept_timeout);
-	if (rc != 0) {
-		CERROR("Error %d reading connection request from %pI4h\n",
-			rc, &peer_ip);
-		return -EIO;
-	}
-
-	if (flip)
-		__swab64s(&cr.acr_nid);
-
-	ni = lnet_net2ni(LNET_NIDNET(cr.acr_nid));
-	if (ni == NULL ||	       /* no matching net */
-	    ni->ni_nid != cr.acr_nid) { /* right NET, wrong NID! */
-		if (ni != NULL)
-			lnet_ni_decref(ni);
-		LCONSOLE_ERROR_MSG(0x120, "Refusing connection from %pI4h for %s: No matching NI\n",
-				   &peer_ip, libcfs_nid2str(cr.acr_nid));
-		return -EPERM;
-	}
-
-	if (ni->ni_lnd->lnd_accept == NULL) {
-		/* This catches a request for the loopback LND */
-		lnet_ni_decref(ni);
-		LCONSOLE_ERROR_MSG(0x121, "Refusing connection from %pI4h for %s: NI doesn not accept IP connections\n",
-				  &peer_ip, libcfs_nid2str(cr.acr_nid));
-		return -EPERM;
-	}
-
-	CDEBUG(D_NET, "Accept %s from %pI4h\n",
-	       libcfs_nid2str(cr.acr_nid), &peer_ip);
-
-	rc = ni->ni_lnd->lnd_accept(ni, sock);
-
-	lnet_ni_decref(ni);
-	return rc;
-}
-
-static int
-lnet_acceptor(void *arg)
-{
-	struct socket *newsock;
-	int rc;
-	__u32 magic;
-	__u32 peer_ip;
-	int peer_port;
-	int secure = (int)((long_ptr_t)arg);
-
-	LASSERT(lnet_acceptor_state.pta_sock == NULL);
-
-	cfs_block_allsigs();
-
-	rc = lnet_sock_listen(&lnet_acceptor_state.pta_sock, 0, accept_port,
-			      accept_backlog);
-	if (rc != 0) {
-		if (rc == -EADDRINUSE)
-			LCONSOLE_ERROR_MSG(0x122, "Can't start acceptor on port %d: port already in use\n",
-					   accept_port);
-		else
-			LCONSOLE_ERROR_MSG(0x123, "Can't start acceptor on port %d: unexpected error %d\n",
-					   accept_port, rc);
-
-		lnet_acceptor_state.pta_sock = NULL;
-	} else {
-		LCONSOLE(0, "Accept %s, port %d\n", accept_type, accept_port);
-	}
-
-	/* set init status and unblock parent */
-	lnet_acceptor_state.pta_shutdown = rc;
-	complete(&lnet_acceptor_state.pta_signal);
-
-	if (rc != 0)
-		return rc;
-
-	while (!lnet_acceptor_state.pta_shutdown) {
-
-		rc = lnet_sock_accept(&newsock, lnet_acceptor_state.pta_sock);
-		if (rc != 0) {
-			if (rc != -EAGAIN) {
-				CWARN("Accept error %d: pausing...\n", rc);
-				set_current_state(TASK_UNINTERRUPTIBLE);
-				schedule_timeout(cfs_time_seconds(1));
-			}
-			continue;
-		}
-
-		/* maybe the LNet acceptor thread has been waken */
-		if (lnet_acceptor_state.pta_shutdown) {
-			sock_release(newsock);
-			break;
-		}
-
-		rc = lnet_sock_getaddr(newsock, 1, &peer_ip, &peer_port);
-		if (rc != 0) {
-			CERROR("Can't determine new connection's address\n");
-			goto failed;
-		}
-
-		if (secure && peer_port > LNET_ACCEPTOR_MAX_RESERVED_PORT) {
-			CERROR("Refusing connection from %pI4h: insecure port %d\n",
-			       &peer_ip, peer_port);
-			goto failed;
-		}
-
-		rc = lnet_sock_read(newsock, &magic, sizeof(magic),
-				    accept_timeout);
-		if (rc != 0) {
-			CERROR("Error %d reading connection request from %pI4h\n",
-				rc, &peer_ip);
-			goto failed;
-		}
-
-		rc = lnet_accept(newsock, magic);
-		if (rc != 0)
-			goto failed;
-
-		continue;
-
-failed:
-		sock_release(newsock);
-	}
-
-	sock_release(lnet_acceptor_state.pta_sock);
-	lnet_acceptor_state.pta_sock = NULL;
-
-	CDEBUG(D_NET, "Acceptor stopping\n");
-
-	/* unblock lnet_acceptor_stop() */
-	complete(&lnet_acceptor_state.pta_signal);
-	return 0;
-}
-
-static inline int
-accept2secure(const char *acc, long *sec)
-{
-	if (!strcmp(acc, "secure")) {
-		*sec = 1;
-		return 1;
-	} else if (!strcmp(acc, "all")) {
-		*sec = 0;
-		return 1;
-	} else if (!strcmp(acc, "none")) {
-		return 0;
-	}
-
-	LCONSOLE_ERROR_MSG(0x124, "Can't parse 'accept=\"%s\"'\n",
-			   acc);
-	return -EINVAL;
-}
-
-int
-lnet_acceptor_start(void)
-{
-	int rc;
-	long rc2;
-	long secure;
-
-	LASSERT(lnet_acceptor_state.pta_sock == NULL);
-
-	rc = lnet_acceptor_get_tunables();
-	if (rc != 0)
-		return rc;
-
-
-	init_completion(&lnet_acceptor_state.pta_signal);
-	rc = accept2secure(accept_type, &secure);
-	if (rc <= 0)
-		return rc;
-
-	if (lnet_count_acceptor_nis() == 0)  /* not required */
-		return 0;
-
-	rc2 = PTR_ERR(kthread_run(lnet_acceptor,
-				  (void *)(ulong_ptr_t)secure,
-				  "acceptor_%03ld", secure));
-	if (IS_ERR_VALUE(rc2)) {
-		CERROR("Can't start acceptor thread: %ld\n", rc2);
-
-		return -ESRCH;
-	}
-
-	/* wait for acceptor to startup */
-	wait_for_completion(&lnet_acceptor_state.pta_signal);
-
-	if (!lnet_acceptor_state.pta_shutdown) {
-		/* started OK */
-		LASSERT(lnet_acceptor_state.pta_sock != NULL);
-		return 0;
-	}
-
-	LASSERT(lnet_acceptor_state.pta_sock == NULL);
-
-	return -ENETDOWN;
-}
-
-void
-lnet_acceptor_stop(void)
-{
-	if (lnet_acceptor_state.pta_sock == NULL) /* not running */
-		return;
-
-	lnet_acceptor_state.pta_shutdown = 1;
-	wake_up_all(sk_sleep(lnet_acceptor_state.pta_sock->sk));
-
-	/* block until acceptor signals exit */
-	wait_for_completion(&lnet_acceptor_state.pta_signal);
-}
diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c
deleted file mode 100644
index d14fe70a56df..000000000000
--- a/drivers/staging/lustre/lnet/lnet/api-ni.c
+++ /dev/null
@@ -1,1867 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include <linux/log2.h>
-#include <linux/ktime.h>
-
-#include "../../include/linux/lnet/lib-lnet.h"
-
-#define D_LNI D_CONSOLE
-
-lnet_t the_lnet;			   /* THE state of the network */
-EXPORT_SYMBOL(the_lnet);
-
-
-static char *ip2nets = "";
-module_param(ip2nets, charp, 0444);
-MODULE_PARM_DESC(ip2nets, "LNET network <- IP table");
-
-static char *networks = "";
-module_param(networks, charp, 0444);
-MODULE_PARM_DESC(networks, "local networks");
-
-static char *routes = "";
-module_param(routes, charp, 0444);
-MODULE_PARM_DESC(routes, "routes to non-local networks");
-
-static int rnet_htable_size = LNET_REMOTE_NETS_HASH_DEFAULT;
-module_param(rnet_htable_size, int, 0444);
-MODULE_PARM_DESC(rnet_htable_size, "size of remote network hash table");
-
-static char *
-lnet_get_routes(void)
-{
-	return routes;
-}
-
-static char *
-lnet_get_networks(void)
-{
-	char *nets;
-	int rc;
-
-	if (*networks != 0 && *ip2nets != 0) {
-		LCONSOLE_ERROR_MSG(0x101, "Please specify EITHER 'networks' or 'ip2nets' but not both at once\n");
-		return NULL;
-	}
-
-	if (*ip2nets != 0) {
-		rc = lnet_parse_ip2nets(&nets, ip2nets);
-		return (rc == 0) ? nets : NULL;
-	}
-
-	if (*networks != 0)
-		return networks;
-
-	return "tcp";
-}
-
-static void
-lnet_init_locks(void)
-{
-	spin_lock_init(&the_lnet.ln_eq_wait_lock);
-	init_waitqueue_head(&the_lnet.ln_eq_waitq);
-	mutex_init(&the_lnet.ln_lnd_mutex);
-	mutex_init(&the_lnet.ln_api_mutex);
-}
-
-static int
-lnet_create_remote_nets_table(void)
-{
-	int i;
-	struct list_head *hash;
-
-	LASSERT(the_lnet.ln_remote_nets_hash == NULL);
-	LASSERT(the_lnet.ln_remote_nets_hbits > 0);
-	LIBCFS_ALLOC(hash, LNET_REMOTE_NETS_HASH_SIZE * sizeof(*hash));
-	if (hash == NULL) {
-		CERROR("Failed to create remote nets hash table\n");
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE; i++)
-		INIT_LIST_HEAD(&hash[i]);
-	the_lnet.ln_remote_nets_hash = hash;
-	return 0;
-}
-
-static void
-lnet_destroy_remote_nets_table(void)
-{
-	int i;
-
-	if (the_lnet.ln_remote_nets_hash == NULL)
-		return;
-
-	for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE; i++)
-		LASSERT(list_empty(&the_lnet.ln_remote_nets_hash[i]));
-
-	LIBCFS_FREE(the_lnet.ln_remote_nets_hash,
-		    LNET_REMOTE_NETS_HASH_SIZE *
-		    sizeof(the_lnet.ln_remote_nets_hash[0]));
-	the_lnet.ln_remote_nets_hash = NULL;
-}
-
-static void
-lnet_destroy_locks(void)
-{
-	if (the_lnet.ln_res_lock != NULL) {
-		cfs_percpt_lock_free(the_lnet.ln_res_lock);
-		the_lnet.ln_res_lock = NULL;
-	}
-
-	if (the_lnet.ln_net_lock != NULL) {
-		cfs_percpt_lock_free(the_lnet.ln_net_lock);
-		the_lnet.ln_net_lock = NULL;
-	}
-}
-
-static int
-lnet_create_locks(void)
-{
-	lnet_init_locks();
-
-	the_lnet.ln_res_lock = cfs_percpt_lock_alloc(lnet_cpt_table());
-	if (the_lnet.ln_res_lock == NULL)
-		goto failed;
-
-	the_lnet.ln_net_lock = cfs_percpt_lock_alloc(lnet_cpt_table());
-	if (the_lnet.ln_net_lock == NULL)
-		goto failed;
-
-	return 0;
-
- failed:
-	lnet_destroy_locks();
-	return -ENOMEM;
-}
-
-static void lnet_assert_wire_constants(void)
-{
-	/* Wire protocol assertions generated by 'wirecheck'
-	 * running on Linux robert.bartonsoftware.com 2.6.8-1.521
-	 * #1 Mon Aug 16 09:01:18 EDT 2004 i686 athlon i386 GNU/Linux
-	 * with gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7) */
-
-	/* Constants... */
-	CLASSERT(LNET_PROTO_TCP_MAGIC == 0xeebc0ded);
-	CLASSERT(LNET_PROTO_TCP_VERSION_MAJOR == 1);
-	CLASSERT(LNET_PROTO_TCP_VERSION_MINOR == 0);
-	CLASSERT(LNET_MSG_ACK == 0);
-	CLASSERT(LNET_MSG_PUT == 1);
-	CLASSERT(LNET_MSG_GET == 2);
-	CLASSERT(LNET_MSG_REPLY == 3);
-	CLASSERT(LNET_MSG_HELLO == 4);
-
-	/* Checks for struct ptl_handle_wire_t */
-	CLASSERT((int)sizeof(lnet_handle_wire_t) == 16);
-	CLASSERT((int)offsetof(lnet_handle_wire_t, wh_interface_cookie) == 0);
-	CLASSERT((int)sizeof(((lnet_handle_wire_t *)0)->wh_interface_cookie) == 8);
-	CLASSERT((int)offsetof(lnet_handle_wire_t, wh_object_cookie) == 8);
-	CLASSERT((int)sizeof(((lnet_handle_wire_t *)0)->wh_object_cookie) == 8);
-
-	/* Checks for struct lnet_magicversion_t */
-	CLASSERT((int)sizeof(lnet_magicversion_t) == 8);
-	CLASSERT((int)offsetof(lnet_magicversion_t, magic) == 0);
-	CLASSERT((int)sizeof(((lnet_magicversion_t *)0)->magic) == 4);
-	CLASSERT((int)offsetof(lnet_magicversion_t, version_major) == 4);
-	CLASSERT((int)sizeof(((lnet_magicversion_t *)0)->version_major) == 2);
-	CLASSERT((int)offsetof(lnet_magicversion_t, version_minor) == 6);
-	CLASSERT((int)sizeof(((lnet_magicversion_t *)0)->version_minor) == 2);
-
-	/* Checks for struct lnet_hdr_t */
-	CLASSERT((int)sizeof(lnet_hdr_t) == 72);
-	CLASSERT((int)offsetof(lnet_hdr_t, dest_nid) == 0);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->dest_nid) == 8);
-	CLASSERT((int)offsetof(lnet_hdr_t, src_nid) == 8);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->src_nid) == 8);
-	CLASSERT((int)offsetof(lnet_hdr_t, dest_pid) == 16);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->dest_pid) == 4);
-	CLASSERT((int)offsetof(lnet_hdr_t, src_pid) == 20);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->src_pid) == 4);
-	CLASSERT((int)offsetof(lnet_hdr_t, type) == 24);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->type) == 4);
-	CLASSERT((int)offsetof(lnet_hdr_t, payload_length) == 28);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->payload_length) == 4);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg) == 32);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg) == 40);
-
-	/* Ack */
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.ack.dst_wmd) == 32);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.ack.dst_wmd) == 16);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.ack.match_bits) == 48);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.ack.match_bits) == 8);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.ack.mlength) == 56);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.ack.mlength) == 4);
-
-	/* Put */
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.put.ack_wmd) == 32);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.put.ack_wmd) == 16);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.put.match_bits) == 48);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.put.match_bits) == 8);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.put.hdr_data) == 56);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.put.hdr_data) == 8);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.put.ptl_index) == 64);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.put.ptl_index) == 4);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.put.offset) == 68);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.put.offset) == 4);
-
-	/* Get */
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.get.return_wmd) == 32);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.get.return_wmd) == 16);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.get.match_bits) == 48);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.get.match_bits) == 8);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.get.ptl_index) == 56);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.get.ptl_index) == 4);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.get.src_offset) == 60);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.get.src_offset) == 4);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.get.sink_length) == 64);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.get.sink_length) == 4);
-
-	/* Reply */
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.reply.dst_wmd) == 32);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.reply.dst_wmd) == 16);
-
-	/* Hello */
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.hello.incarnation) == 32);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.hello.incarnation) == 8);
-	CLASSERT((int)offsetof(lnet_hdr_t, msg.hello.type) == 40);
-	CLASSERT((int)sizeof(((lnet_hdr_t *)0)->msg.hello.type) == 4);
-}
-
-static lnd_t *
-lnet_find_lnd_by_type(int type)
-{
-	lnd_t *lnd;
-	struct list_head *tmp;
-
-	/* holding lnd mutex */
-	list_for_each(tmp, &the_lnet.ln_lnds) {
-		lnd = list_entry(tmp, lnd_t, lnd_list);
-
-		if ((int)lnd->lnd_type == type)
-			return lnd;
-	}
-
-	return NULL;
-}
-
-void
-lnet_register_lnd(lnd_t *lnd)
-{
-	mutex_lock(&the_lnet.ln_lnd_mutex);
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(libcfs_isknown_lnd(lnd->lnd_type));
-	LASSERT(lnet_find_lnd_by_type(lnd->lnd_type) == NULL);
-
-	list_add_tail(&lnd->lnd_list, &the_lnet.ln_lnds);
-	lnd->lnd_refcount = 0;
-
-	CDEBUG(D_NET, "%s LND registered\n", libcfs_lnd2str(lnd->lnd_type));
-
-	mutex_unlock(&the_lnet.ln_lnd_mutex);
-}
-EXPORT_SYMBOL(lnet_register_lnd);
-
-void
-lnet_unregister_lnd(lnd_t *lnd)
-{
-	mutex_lock(&the_lnet.ln_lnd_mutex);
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(lnet_find_lnd_by_type(lnd->lnd_type) == lnd);
-	LASSERT(lnd->lnd_refcount == 0);
-
-	list_del(&lnd->lnd_list);
-	CDEBUG(D_NET, "%s LND unregistered\n", libcfs_lnd2str(lnd->lnd_type));
-
-	mutex_unlock(&the_lnet.ln_lnd_mutex);
-}
-EXPORT_SYMBOL(lnet_unregister_lnd);
-
-void
-lnet_counters_get(lnet_counters_t *counters)
-{
-	lnet_counters_t *ctr;
-	int i;
-
-	memset(counters, 0, sizeof(*counters));
-
-	lnet_net_lock(LNET_LOCK_EX);
-
-	cfs_percpt_for_each(ctr, i, the_lnet.ln_counters) {
-		counters->msgs_max     += ctr->msgs_max;
-		counters->msgs_alloc   += ctr->msgs_alloc;
-		counters->errors       += ctr->errors;
-		counters->send_count   += ctr->send_count;
-		counters->recv_count   += ctr->recv_count;
-		counters->route_count  += ctr->route_count;
-		counters->drop_count   += ctr->drop_count;
-		counters->send_length  += ctr->send_length;
-		counters->recv_length  += ctr->recv_length;
-		counters->route_length += ctr->route_length;
-		counters->drop_length  += ctr->drop_length;
-
-	}
-	lnet_net_unlock(LNET_LOCK_EX);
-}
-EXPORT_SYMBOL(lnet_counters_get);
-
-void
-lnet_counters_reset(void)
-{
-	lnet_counters_t *counters;
-	int i;
-
-	lnet_net_lock(LNET_LOCK_EX);
-
-	cfs_percpt_for_each(counters, i, the_lnet.ln_counters)
-		memset(counters, 0, sizeof(lnet_counters_t));
-
-	lnet_net_unlock(LNET_LOCK_EX);
-}
-EXPORT_SYMBOL(lnet_counters_reset);
-
-static __u64
-lnet_create_interface_cookie(void)
-{
-	/* NB the interface cookie in wire handles guards against delayed
-	 * replies and ACKs appearing valid after reboot.
-	 */
-	return ktime_get_ns();
-}
-
-static char *
-lnet_res_type2str(int type)
-{
-	switch (type) {
-	default:
-		LBUG();
-	case LNET_COOKIE_TYPE_MD:
-		return "MD";
-	case LNET_COOKIE_TYPE_ME:
-		return "ME";
-	case LNET_COOKIE_TYPE_EQ:
-		return "EQ";
-	}
-}
-
-static void
-lnet_res_container_cleanup(struct lnet_res_container *rec)
-{
-	int count = 0;
-
-	if (rec->rec_type == 0) /* not set yet, it's uninitialized */
-		return;
-
-	while (!list_empty(&rec->rec_active)) {
-		struct list_head *e = rec->rec_active.next;
-
-		list_del_init(e);
-		if (rec->rec_type == LNET_COOKIE_TYPE_EQ) {
-			lnet_eq_free(list_entry(e, lnet_eq_t, eq_list));
-
-		} else if (rec->rec_type == LNET_COOKIE_TYPE_MD) {
-			lnet_md_free(list_entry(e, lnet_libmd_t, md_list));
-
-		} else { /* NB: Active MEs should be attached on portals */
-			LBUG();
-		}
-		count++;
-	}
-
-	if (count > 0) {
-		/* Found alive MD/ME/EQ, user really should unlink/free
-		 * all of them before finalize LNet, but if someone didn't,
-		 * we have to recycle garbage for him */
-		CERROR("%d active elements on exit of %s container\n",
-		       count, lnet_res_type2str(rec->rec_type));
-	}
-
-	if (rec->rec_lh_hash != NULL) {
-		LIBCFS_FREE(rec->rec_lh_hash,
-			    LNET_LH_HASH_SIZE * sizeof(rec->rec_lh_hash[0]));
-		rec->rec_lh_hash = NULL;
-	}
-
-	rec->rec_type = 0; /* mark it as finalized */
-}
-
-static int
-lnet_res_container_setup(struct lnet_res_container *rec, int cpt, int type)
-{
-	int rc = 0;
-	int i;
-
-	LASSERT(rec->rec_type == 0);
-
-	rec->rec_type = type;
-	INIT_LIST_HEAD(&rec->rec_active);
-	rec->rec_lh_cookie = (cpt << LNET_COOKIE_TYPE_BITS) | type;
-
-	/* Arbitrary choice of hash table size */
-	LIBCFS_CPT_ALLOC(rec->rec_lh_hash, lnet_cpt_table(), cpt,
-			 LNET_LH_HASH_SIZE * sizeof(rec->rec_lh_hash[0]));
-	if (rec->rec_lh_hash == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	for (i = 0; i < LNET_LH_HASH_SIZE; i++)
-		INIT_LIST_HEAD(&rec->rec_lh_hash[i]);
-
-	return 0;
-
-out:
-	CERROR("Failed to setup %s resource container\n",
-	       lnet_res_type2str(type));
-	lnet_res_container_cleanup(rec);
-	return rc;
-}
-
-static void
-lnet_res_containers_destroy(struct lnet_res_container **recs)
-{
-	struct lnet_res_container *rec;
-	int i;
-
-	cfs_percpt_for_each(rec, i, recs)
-		lnet_res_container_cleanup(rec);
-
-	cfs_percpt_free(recs);
-}
-
-static struct lnet_res_container **
-lnet_res_containers_create(int type)
-{
-	struct lnet_res_container **recs;
-	struct lnet_res_container *rec;
-	int rc;
-	int i;
-
-	recs = cfs_percpt_alloc(lnet_cpt_table(), sizeof(*rec));
-	if (recs == NULL) {
-		CERROR("Failed to allocate %s resource containers\n",
-		       lnet_res_type2str(type));
-		return NULL;
-	}
-
-	cfs_percpt_for_each(rec, i, recs) {
-		rc = lnet_res_container_setup(rec, i, type);
-		if (rc != 0) {
-			lnet_res_containers_destroy(recs);
-			return NULL;
-		}
-	}
-
-	return recs;
-}
-
-lnet_libhandle_t *
-lnet_res_lh_lookup(struct lnet_res_container *rec, __u64 cookie)
-{
-	/* ALWAYS called with lnet_res_lock held */
-	struct list_head *head;
-	lnet_libhandle_t *lh;
-	unsigned int hash;
-
-	if ((cookie & LNET_COOKIE_MASK) != rec->rec_type)
-		return NULL;
-
-	hash = cookie >> (LNET_COOKIE_TYPE_BITS + LNET_CPT_BITS);
-	head = &rec->rec_lh_hash[hash & LNET_LH_HASH_MASK];
-
-	list_for_each_entry(lh, head, lh_hash_chain) {
-		if (lh->lh_cookie == cookie)
-			return lh;
-	}
-
-	return NULL;
-}
-
-void
-lnet_res_lh_initialize(struct lnet_res_container *rec, lnet_libhandle_t *lh)
-{
-	/* ALWAYS called with lnet_res_lock held */
-	unsigned int ibits = LNET_COOKIE_TYPE_BITS + LNET_CPT_BITS;
-	unsigned int hash;
-
-	lh->lh_cookie = rec->rec_lh_cookie;
-	rec->rec_lh_cookie += 1 << ibits;
-
-	hash = (lh->lh_cookie >> ibits) & LNET_LH_HASH_MASK;
-
-	list_add(&lh->lh_hash_chain, &rec->rec_lh_hash[hash]);
-}
-
-
-int lnet_unprepare(void);
-
-static int
-lnet_prepare(lnet_pid_t requested_pid)
-{
-	/* Prepare to bring up the network */
-	struct lnet_res_container **recs;
-	int rc = 0;
-
-	LASSERT(the_lnet.ln_refcount == 0);
-
-	the_lnet.ln_routing = 0;
-
-	LASSERT((requested_pid & LNET_PID_USERFLAG) == 0);
-	the_lnet.ln_pid = requested_pid;
-
-	INIT_LIST_HEAD(&the_lnet.ln_test_peers);
-	INIT_LIST_HEAD(&the_lnet.ln_nis);
-	INIT_LIST_HEAD(&the_lnet.ln_nis_cpt);
-	INIT_LIST_HEAD(&the_lnet.ln_nis_zombie);
-	INIT_LIST_HEAD(&the_lnet.ln_routers);
-
-	rc = lnet_create_remote_nets_table();
-	if (rc != 0)
-		goto failed;
-
-	the_lnet.ln_interface_cookie = lnet_create_interface_cookie();
-
-	the_lnet.ln_counters = cfs_percpt_alloc(lnet_cpt_table(),
-						sizeof(lnet_counters_t));
-	if (the_lnet.ln_counters == NULL) {
-		CERROR("Failed to allocate counters for LNet\n");
-		rc = -ENOMEM;
-		goto failed;
-	}
-
-	rc = lnet_peer_tables_create();
-	if (rc != 0)
-		goto failed;
-
-	rc = lnet_msg_containers_create();
-	if (rc != 0)
-		goto failed;
-
-	rc = lnet_res_container_setup(&the_lnet.ln_eq_container, 0,
-				      LNET_COOKIE_TYPE_EQ);
-	if (rc != 0)
-		goto failed;
-
-	recs = lnet_res_containers_create(LNET_COOKIE_TYPE_ME);
-	if (recs == NULL) {
-		rc = -ENOMEM;
-		goto failed;
-	}
-
-	the_lnet.ln_me_containers = recs;
-
-	recs = lnet_res_containers_create(LNET_COOKIE_TYPE_MD);
-	if (recs == NULL) {
-		rc = -ENOMEM;
-		goto failed;
-	}
-
-	the_lnet.ln_md_containers = recs;
-
-	rc = lnet_portals_create();
-	if (rc != 0) {
-		CERROR("Failed to create portals for LNet: %d\n", rc);
-		goto failed;
-	}
-
-	return 0;
-
- failed:
-	lnet_unprepare();
-	return rc;
-}
-
-int
-lnet_unprepare(void)
-{
-	/* NB no LNET_LOCK since this is the last reference.  All LND instances
-	 * have shut down already, so it is safe to unlink and free all
-	 * descriptors, even those that appear committed to a network op (eg MD
-	 * with non-zero pending count) */
-
-	lnet_fail_nid(LNET_NID_ANY, 0);
-
-	LASSERT(the_lnet.ln_refcount == 0);
-	LASSERT(list_empty(&the_lnet.ln_test_peers));
-	LASSERT(list_empty(&the_lnet.ln_nis));
-	LASSERT(list_empty(&the_lnet.ln_nis_cpt));
-	LASSERT(list_empty(&the_lnet.ln_nis_zombie));
-
-	lnet_portals_destroy();
-
-	if (the_lnet.ln_md_containers != NULL) {
-		lnet_res_containers_destroy(the_lnet.ln_md_containers);
-		the_lnet.ln_md_containers = NULL;
-	}
-
-	if (the_lnet.ln_me_containers != NULL) {
-		lnet_res_containers_destroy(the_lnet.ln_me_containers);
-		the_lnet.ln_me_containers = NULL;
-	}
-
-	lnet_res_container_cleanup(&the_lnet.ln_eq_container);
-
-	lnet_msg_containers_destroy();
-	lnet_peer_tables_destroy();
-	lnet_rtrpools_free();
-
-	if (the_lnet.ln_counters != NULL) {
-		cfs_percpt_free(the_lnet.ln_counters);
-		the_lnet.ln_counters = NULL;
-	}
-	lnet_destroy_remote_nets_table();
-
-	return 0;
-}
-
-lnet_ni_t  *
-lnet_net2ni_locked(__u32 net, int cpt)
-{
-	struct list_head *tmp;
-	lnet_ni_t *ni;
-
-	LASSERT(cpt != LNET_LOCK_EX);
-
-	list_for_each(tmp, &the_lnet.ln_nis) {
-		ni = list_entry(tmp, lnet_ni_t, ni_list);
-
-		if (LNET_NIDNET(ni->ni_nid) == net) {
-			lnet_ni_addref_locked(ni, cpt);
-			return ni;
-		}
-	}
-
-	return NULL;
-}
-
-lnet_ni_t *
-lnet_net2ni(__u32 net)
-{
-	lnet_ni_t *ni;
-
-	lnet_net_lock(0);
-	ni = lnet_net2ni_locked(net, 0);
-	lnet_net_unlock(0);
-
-	return ni;
-}
-EXPORT_SYMBOL(lnet_net2ni);
-
-static unsigned int
-lnet_nid_cpt_hash(lnet_nid_t nid, unsigned int number)
-{
-	__u64 key = nid;
-	unsigned int val;
-
-	LASSERT(number >= 1 && number <= LNET_CPT_NUMBER);
-
-	if (number == 1)
-		return 0;
-
-	val = hash_long(key, LNET_CPT_BITS);
-	/* NB: LNET_CP_NUMBER doesn't have to be PO2 */
-	if (val < number)
-		return val;
-
-	return (unsigned int)(key + val + (val >> 1)) % number;
-}
-
-int
-lnet_cpt_of_nid_locked(lnet_nid_t nid)
-{
-	struct lnet_ni *ni;
-
-	/* must called with hold of lnet_net_lock */
-	if (LNET_CPT_NUMBER == 1)
-		return 0; /* the only one */
-
-	/* take lnet_net_lock(any) would be OK */
-	if (!list_empty(&the_lnet.ln_nis_cpt)) {
-		list_for_each_entry(ni, &the_lnet.ln_nis_cpt, ni_cptlist) {
-			if (LNET_NIDNET(ni->ni_nid) != LNET_NIDNET(nid))
-				continue;
-
-			LASSERT(ni->ni_cpts != NULL);
-			return ni->ni_cpts[lnet_nid_cpt_hash
-					   (nid, ni->ni_ncpts)];
-		}
-	}
-
-	return lnet_nid_cpt_hash(nid, LNET_CPT_NUMBER);
-}
-
-int
-lnet_cpt_of_nid(lnet_nid_t nid)
-{
-	int cpt;
-	int cpt2;
-
-	if (LNET_CPT_NUMBER == 1)
-		return 0; /* the only one */
-
-	if (list_empty(&the_lnet.ln_nis_cpt))
-		return lnet_nid_cpt_hash(nid, LNET_CPT_NUMBER);
-
-	cpt = lnet_net_lock_current();
-	cpt2 = lnet_cpt_of_nid_locked(nid);
-	lnet_net_unlock(cpt);
-
-	return cpt2;
-}
-EXPORT_SYMBOL(lnet_cpt_of_nid);
-
-int
-lnet_islocalnet(__u32 net)
-{
-	struct lnet_ni *ni;
-	int cpt;
-
-	cpt = lnet_net_lock_current();
-
-	ni = lnet_net2ni_locked(net, cpt);
-	if (ni != NULL)
-		lnet_ni_decref_locked(ni, cpt);
-
-	lnet_net_unlock(cpt);
-
-	return ni != NULL;
-}
-
-lnet_ni_t  *
-lnet_nid2ni_locked(lnet_nid_t nid, int cpt)
-{
-	struct lnet_ni *ni;
-	struct list_head *tmp;
-
-	LASSERT(cpt != LNET_LOCK_EX);
-
-	list_for_each(tmp, &the_lnet.ln_nis) {
-		ni = list_entry(tmp, lnet_ni_t, ni_list);
-
-		if (ni->ni_nid == nid) {
-			lnet_ni_addref_locked(ni, cpt);
-			return ni;
-		}
-	}
-
-	return NULL;
-}
-
-int
-lnet_islocalnid(lnet_nid_t nid)
-{
-	struct lnet_ni *ni;
-	int cpt;
-
-	cpt = lnet_net_lock_current();
-	ni = lnet_nid2ni_locked(nid, cpt);
-	if (ni != NULL)
-		lnet_ni_decref_locked(ni, cpt);
-	lnet_net_unlock(cpt);
-
-	return ni != NULL;
-}
-
-int
-lnet_count_acceptor_nis(void)
-{
-	/* Return the # of NIs that need the acceptor. */
-	int count = 0;
-	struct list_head *tmp;
-	struct lnet_ni *ni;
-	int cpt;
-
-	cpt = lnet_net_lock_current();
-	list_for_each(tmp, &the_lnet.ln_nis) {
-		ni = list_entry(tmp, lnet_ni_t, ni_list);
-
-		if (ni->ni_lnd->lnd_accept != NULL)
-			count++;
-	}
-
-	lnet_net_unlock(cpt);
-
-	return count;
-}
-
-static int
-lnet_ni_tq_credits(lnet_ni_t *ni)
-{
-	int credits;
-
-	LASSERT(ni->ni_ncpts >= 1);
-
-	if (ni->ni_ncpts == 1)
-		return ni->ni_maxtxcredits;
-
-	credits = ni->ni_maxtxcredits / ni->ni_ncpts;
-	credits = max(credits, 8 * ni->ni_peertxcredits);
-	credits = min(credits, ni->ni_maxtxcredits);
-
-	return credits;
-}
-
-static void
-lnet_shutdown_lndnis(void)
-{
-	int i;
-	int islo;
-	lnet_ni_t *ni;
-
-	/* NB called holding the global mutex */
-
-	/* All quiet on the API front */
-	LASSERT(!the_lnet.ln_shutdown);
-	LASSERT(the_lnet.ln_refcount == 0);
-	LASSERT(list_empty(&the_lnet.ln_nis_zombie));
-
-	lnet_net_lock(LNET_LOCK_EX);
-	the_lnet.ln_shutdown = 1;	/* flag shutdown */
-
-	/* Unlink NIs from the global table */
-	while (!list_empty(&the_lnet.ln_nis)) {
-		ni = list_entry(the_lnet.ln_nis.next,
-				    lnet_ni_t, ni_list);
-		/* move it to zombie list and nobody can find it anymore */
-		list_move(&ni->ni_list, &the_lnet.ln_nis_zombie);
-		lnet_ni_decref_locked(ni, 0);	/* drop ln_nis' ref */
-
-		if (!list_empty(&ni->ni_cptlist)) {
-			list_del_init(&ni->ni_cptlist);
-			lnet_ni_decref_locked(ni, 0);
-		}
-	}
-
-	/* Drop the cached eqwait NI. */
-	if (the_lnet.ln_eq_waitni != NULL) {
-		lnet_ni_decref_locked(the_lnet.ln_eq_waitni, 0);
-		the_lnet.ln_eq_waitni = NULL;
-	}
-
-	/* Drop the cached loopback NI. */
-	if (the_lnet.ln_loni != NULL) {
-		lnet_ni_decref_locked(the_lnet.ln_loni, 0);
-		the_lnet.ln_loni = NULL;
-	}
-
-	lnet_net_unlock(LNET_LOCK_EX);
-
-	/* Clear lazy portals and drop delayed messages which hold refs
-	 * on their lnet_msg_t::msg_rxpeer */
-	for (i = 0; i < the_lnet.ln_nportals; i++)
-		LNetClearLazyPortal(i);
-
-	/* Clear the peer table and wait for all peers to go (they hold refs on
-	 * their NIs) */
-	lnet_peer_tables_cleanup();
-
-	lnet_net_lock(LNET_LOCK_EX);
-	/* Now wait for the NI's I just nuked to show up on ln_zombie_nis
-	 * and shut them down in guaranteed thread context */
-	i = 2;
-	while (!list_empty(&the_lnet.ln_nis_zombie)) {
-		int *ref;
-		int j;
-
-		ni = list_entry(the_lnet.ln_nis_zombie.next,
-				    lnet_ni_t, ni_list);
-		list_del_init(&ni->ni_list);
-		cfs_percpt_for_each(ref, j, ni->ni_refs) {
-			if (*ref == 0)
-				continue;
-			/* still busy, add it back to zombie list */
-			list_add(&ni->ni_list, &the_lnet.ln_nis_zombie);
-			break;
-		}
-
-		if (!list_empty(&ni->ni_list)) {
-			lnet_net_unlock(LNET_LOCK_EX);
-			++i;
-			if ((i & (-i)) == i) {
-				CDEBUG(D_WARNING, "Waiting for zombie LNI %s\n",
-				       libcfs_nid2str(ni->ni_nid));
-			}
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(cfs_time_seconds(1));
-			lnet_net_lock(LNET_LOCK_EX);
-			continue;
-		}
-
-		ni->ni_lnd->lnd_refcount--;
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		islo = ni->ni_lnd->lnd_type == LOLND;
-
-		LASSERT(!in_interrupt());
-		(ni->ni_lnd->lnd_shutdown)(ni);
-
-		/* can't deref lnd anymore now; it might have unregistered
-		 * itself...  */
-
-		if (!islo)
-			CDEBUG(D_LNI, "Removed LNI %s\n",
-			       libcfs_nid2str(ni->ni_nid));
-
-		lnet_ni_free(ni);
-		i = 2;
-
-		lnet_net_lock(LNET_LOCK_EX);
-	}
-
-	the_lnet.ln_shutdown = 0;
-	lnet_net_unlock(LNET_LOCK_EX);
-
-	if (the_lnet.ln_network_tokens != NULL) {
-		LIBCFS_FREE(the_lnet.ln_network_tokens,
-			    the_lnet.ln_network_tokens_nob);
-		the_lnet.ln_network_tokens = NULL;
-	}
-}
-
-static int
-lnet_startup_lndnis(void)
-{
-	lnd_t *lnd;
-	struct lnet_ni *ni;
-	struct lnet_tx_queue *tq;
-	struct list_head nilist;
-	int i;
-	int rc = 0;
-	int lnd_type;
-	int nicount = 0;
-	char *nets = lnet_get_networks();
-
-	INIT_LIST_HEAD(&nilist);
-
-	if (nets == NULL)
-		goto failed;
-
-	rc = lnet_parse_networks(&nilist, nets);
-	if (rc != 0)
-		goto failed;
-
-	while (!list_empty(&nilist)) {
-		ni = list_entry(nilist.next, lnet_ni_t, ni_list);
-		lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid));
-
-		LASSERT(libcfs_isknown_lnd(lnd_type));
-
-		if (lnd_type == CIBLND    ||
-		    lnd_type == OPENIBLND ||
-		    lnd_type == IIBLND    ||
-		    lnd_type == VIBLND) {
-			CERROR("LND %s obsoleted\n",
-			       libcfs_lnd2str(lnd_type));
-			goto failed;
-		}
-
-		mutex_lock(&the_lnet.ln_lnd_mutex);
-		lnd = lnet_find_lnd_by_type(lnd_type);
-
-		if (lnd == NULL) {
-			mutex_unlock(&the_lnet.ln_lnd_mutex);
-			rc = request_module("%s",
-						libcfs_lnd2modname(lnd_type));
-			mutex_lock(&the_lnet.ln_lnd_mutex);
-
-			lnd = lnet_find_lnd_by_type(lnd_type);
-			if (lnd == NULL) {
-				mutex_unlock(&the_lnet.ln_lnd_mutex);
-				CERROR("Can't load LND %s, module %s, rc=%d\n",
-				       libcfs_lnd2str(lnd_type),
-				       libcfs_lnd2modname(lnd_type), rc);
-				goto failed;
-			}
-		}
-
-		lnet_net_lock(LNET_LOCK_EX);
-		lnd->lnd_refcount++;
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		ni->ni_lnd = lnd;
-
-		rc = (lnd->lnd_startup)(ni);
-
-		mutex_unlock(&the_lnet.ln_lnd_mutex);
-
-		if (rc != 0) {
-			LCONSOLE_ERROR_MSG(0x105, "Error %d starting up LNI %s\n",
-					   rc, libcfs_lnd2str(lnd->lnd_type));
-			lnet_net_lock(LNET_LOCK_EX);
-			lnd->lnd_refcount--;
-			lnet_net_unlock(LNET_LOCK_EX);
-			goto failed;
-		}
-
-		LASSERT(ni->ni_peertimeout <= 0 || lnd->lnd_query != NULL);
-
-		list_del(&ni->ni_list);
-
-		lnet_net_lock(LNET_LOCK_EX);
-		/* refcount for ln_nis */
-		lnet_ni_addref_locked(ni, 0);
-		list_add_tail(&ni->ni_list, &the_lnet.ln_nis);
-		if (ni->ni_cpts != NULL) {
-			list_add_tail(&ni->ni_cptlist,
-					  &the_lnet.ln_nis_cpt);
-			lnet_ni_addref_locked(ni, 0);
-		}
-
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		if (lnd->lnd_type == LOLND) {
-			lnet_ni_addref(ni);
-			LASSERT(the_lnet.ln_loni == NULL);
-			the_lnet.ln_loni = ni;
-			continue;
-		}
-
-		if (ni->ni_peertxcredits == 0 ||
-		    ni->ni_maxtxcredits == 0) {
-			LCONSOLE_ERROR_MSG(0x107, "LNI %s has no %scredits\n",
-					   libcfs_lnd2str(lnd->lnd_type),
-					   ni->ni_peertxcredits == 0 ?
-					   "" : "per-peer ");
-			goto failed;
-		}
-
-		cfs_percpt_for_each(tq, i, ni->ni_tx_queues) {
-			tq->tq_credits_min =
-			tq->tq_credits_max =
-			tq->tq_credits = lnet_ni_tq_credits(ni);
-		}
-
-		CDEBUG(D_LNI, "Added LNI %s [%d/%d/%d/%d]\n",
-		       libcfs_nid2str(ni->ni_nid), ni->ni_peertxcredits,
-		       lnet_ni_tq_credits(ni) * LNET_CPT_NUMBER,
-		       ni->ni_peerrtrcredits, ni->ni_peertimeout);
-
-		nicount++;
-	}
-
-	if (the_lnet.ln_eq_waitni != NULL && nicount > 1) {
-		lnd_type = the_lnet.ln_eq_waitni->ni_lnd->lnd_type;
-		LCONSOLE_ERROR_MSG(0x109, "LND %s can only run single-network\n",
-				   libcfs_lnd2str(lnd_type));
-		goto failed;
-	}
-
-	return 0;
-
- failed:
-	lnet_shutdown_lndnis();
-
-	while (!list_empty(&nilist)) {
-		ni = list_entry(nilist.next, lnet_ni_t, ni_list);
-		list_del(&ni->ni_list);
-		lnet_ni_free(ni);
-	}
-
-	return -ENETDOWN;
-}
-
-/**
- * Initialize LNet library.
- *
- * Only userspace program needs to call this function - it's automatically
- * called in the kernel at module loading time. Caller has to call lnet_fini()
- * after a call to lnet_init(), if and only if the latter returned 0. It must
- * be called exactly once.
- *
- * \return 0 on success, and -ve on failures.
- */
-int
-lnet_init(void)
-{
-	int rc;
-
-	lnet_assert_wire_constants();
-	LASSERT(!the_lnet.ln_init);
-
-	memset(&the_lnet, 0, sizeof(the_lnet));
-
-	/* refer to global cfs_cpt_table for now */
-	the_lnet.ln_cpt_table	= cfs_cpt_table;
-	the_lnet.ln_cpt_number	= cfs_cpt_number(cfs_cpt_table);
-
-	LASSERT(the_lnet.ln_cpt_number > 0);
-	if (the_lnet.ln_cpt_number > LNET_CPT_MAX) {
-		/* we are under risk of consuming all lh_cookie */
-		CERROR("Can't have %d CPTs for LNet (max allowed is %d), please change setting of CPT-table and retry\n",
-		       the_lnet.ln_cpt_number, LNET_CPT_MAX);
-		return -1;
-	}
-
-	while ((1 << the_lnet.ln_cpt_bits) < the_lnet.ln_cpt_number)
-		the_lnet.ln_cpt_bits++;
-
-	rc = lnet_create_locks();
-	if (rc != 0) {
-		CERROR("Can't create LNet global locks: %d\n", rc);
-		return -1;
-	}
-
-	the_lnet.ln_refcount = 0;
-	the_lnet.ln_init = 1;
-	LNetInvalidateHandle(&the_lnet.ln_rc_eqh);
-	INIT_LIST_HEAD(&the_lnet.ln_lnds);
-	INIT_LIST_HEAD(&the_lnet.ln_rcd_zombie);
-	INIT_LIST_HEAD(&the_lnet.ln_rcd_deathrow);
-
-	/* The hash table size is the number of bits it takes to express the set
-	 * ln_num_routes, minus 1 (better to under estimate than over so we
-	 * don't waste memory). */
-	if (rnet_htable_size <= 0)
-		rnet_htable_size = LNET_REMOTE_NETS_HASH_DEFAULT;
-	else if (rnet_htable_size > LNET_REMOTE_NETS_HASH_MAX)
-		rnet_htable_size = LNET_REMOTE_NETS_HASH_MAX;
-	the_lnet.ln_remote_nets_hbits = max_t(int, 1,
-					   order_base_2(rnet_htable_size) - 1);
-
-	/* All LNDs apart from the LOLND are in separate modules.  They
-	 * register themselves when their module loads, and unregister
-	 * themselves when their module is unloaded. */
-	lnet_register_lnd(&the_lolnd);
-	return 0;
-}
-EXPORT_SYMBOL(lnet_init);
-
-/**
- * Finalize LNet library.
- *
- * Only userspace program needs to call this function. It can be called
- * at most once.
- *
- * \pre lnet_init() called with success.
- * \pre All LNet users called LNetNIFini() for matching LNetNIInit() calls.
- */
-void
-lnet_fini(void)
-{
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount == 0);
-
-	while (!list_empty(&the_lnet.ln_lnds))
-		lnet_unregister_lnd(list_entry(the_lnet.ln_lnds.next,
-						   lnd_t, lnd_list));
-	lnet_destroy_locks();
-
-	the_lnet.ln_init = 0;
-}
-EXPORT_SYMBOL(lnet_fini);
-
-/**
- * Set LNet PID and start LNet interfaces, routing, and forwarding.
- *
- * Userspace program should call this after a successful call to lnet_init().
- * Users must call this function at least once before any other functions.
- * For each successful call there must be a corresponding call to
- * LNetNIFini(). For subsequent calls to LNetNIInit(), \a requested_pid is
- * ignored.
- *
- * The PID used by LNet may be different from the one requested.
- * See LNetGetId().
- *
- * \param requested_pid PID requested by the caller.
- *
- * \return >= 0 on success, and < 0 error code on failures.
- */
-int
-LNetNIInit(lnet_pid_t requested_pid)
-{
-	int im_a_router = 0;
-	int rc;
-
-	mutex_lock(&the_lnet.ln_api_mutex);
-
-	LASSERT(the_lnet.ln_init);
-	CDEBUG(D_OTHER, "refs %d\n", the_lnet.ln_refcount);
-
-	if (the_lnet.ln_refcount > 0) {
-		rc = the_lnet.ln_refcount++;
-		goto out;
-	}
-
-	if (requested_pid == LNET_PID_ANY) {
-		/* Don't instantiate LNET just for me */
-		rc = -ENETDOWN;
-		goto failed0;
-	}
-
-	rc = lnet_prepare(requested_pid);
-	if (rc != 0)
-		goto failed0;
-
-	rc = lnet_startup_lndnis();
-	if (rc != 0)
-		goto failed1;
-
-	rc = lnet_parse_routes(lnet_get_routes(), &im_a_router);
-	if (rc != 0)
-		goto failed2;
-
-	rc = lnet_check_routes();
-	if (rc != 0)
-		goto failed2;
-
-	rc = lnet_rtrpools_alloc(im_a_router);
-	if (rc != 0)
-		goto failed2;
-
-	rc = lnet_acceptor_start();
-	if (rc != 0)
-		goto failed2;
-
-	the_lnet.ln_refcount = 1;
-	/* Now I may use my own API functions... */
-
-	/* NB router checker needs the_lnet.ln_ping_info in
-	 * lnet_router_checker -> lnet_update_ni_status_locked */
-	rc = lnet_ping_target_init();
-	if (rc != 0)
-		goto failed3;
-
-	rc = lnet_router_checker_start();
-	if (rc != 0)
-		goto failed4;
-
-	lnet_proc_init();
-	goto out;
-
- failed4:
-	lnet_ping_target_fini();
- failed3:
-	the_lnet.ln_refcount = 0;
-	lnet_acceptor_stop();
- failed2:
-	lnet_destroy_routes();
-	lnet_shutdown_lndnis();
- failed1:
-	lnet_unprepare();
- failed0:
-	LASSERT(rc < 0);
- out:
-	mutex_unlock(&the_lnet.ln_api_mutex);
-	return rc;
-}
-EXPORT_SYMBOL(LNetNIInit);
-
-/**
- * Stop LNet interfaces, routing, and forwarding.
- *
- * Users must call this function once for each successful call to LNetNIInit().
- * Once the LNetNIFini() operation has been started, the results of pending
- * API operations are undefined.
- *
- * \return always 0 for current implementation.
- */
-int
-LNetNIFini(void)
-{
-	mutex_lock(&the_lnet.ln_api_mutex);
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if (the_lnet.ln_refcount != 1) {
-		the_lnet.ln_refcount--;
-	} else {
-		LASSERT(!the_lnet.ln_niinit_self);
-
-		lnet_proc_fini();
-		lnet_router_checker_stop();
-		lnet_ping_target_fini();
-
-		/* Teardown fns that use my own API functions BEFORE here */
-		the_lnet.ln_refcount = 0;
-
-		lnet_acceptor_stop();
-		lnet_destroy_routes();
-		lnet_shutdown_lndnis();
-		lnet_unprepare();
-	}
-
-	mutex_unlock(&the_lnet.ln_api_mutex);
-	return 0;
-}
-EXPORT_SYMBOL(LNetNIFini);
-
-/**
- * This is an ugly hack to export IOC_LIBCFS_DEBUG_PEER and
- * IOC_LIBCFS_PORTALS_COMPATIBILITY commands to users, by tweaking the LNet
- * internal ioctl handler.
- *
- * IOC_LIBCFS_PORTALS_COMPATIBILITY is now deprecated, don't use it.
- *
- * \param cmd IOC_LIBCFS_DEBUG_PEER to print debugging data about a peer.
- * The data will be printed to system console. Don't use it excessively.
- * \param arg A pointer to lnet_process_id_t, process ID of the peer.
- *
- * \return Always return 0 when called by users directly (i.e., not via ioctl).
- */
-int
-LNetCtl(unsigned int cmd, void *arg)
-{
-	struct libcfs_ioctl_data *data = arg;
-	lnet_process_id_t id = {0};
-	lnet_ni_t *ni;
-	int rc;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	switch (cmd) {
-	case IOC_LIBCFS_GET_NI:
-		rc = LNetGetId(data->ioc_count, &id);
-		data->ioc_nid = id.nid;
-		return rc;
-
-	case IOC_LIBCFS_FAIL_NID:
-		return lnet_fail_nid(data->ioc_nid, data->ioc_count);
-
-	case IOC_LIBCFS_ADD_ROUTE:
-		rc = lnet_add_route(data->ioc_net, data->ioc_count,
-				    data->ioc_nid, data->ioc_priority);
-		return (rc != 0) ? rc : lnet_check_routes();
-
-	case IOC_LIBCFS_DEL_ROUTE:
-		return lnet_del_route(data->ioc_net, data->ioc_nid);
-
-	case IOC_LIBCFS_GET_ROUTE:
-		return lnet_get_route(data->ioc_count,
-				      &data->ioc_net, &data->ioc_count,
-				      &data->ioc_nid, &data->ioc_flags,
-				      &data->ioc_priority);
-	case IOC_LIBCFS_NOTIFY_ROUTER:
-		return lnet_notify(NULL, data->ioc_nid, data->ioc_flags,
-				   cfs_time_current() -
-				   cfs_time_seconds(get_seconds() -
-						    (time_t)data->ioc_u64[0]));
-
-	case IOC_LIBCFS_PORTALS_COMPATIBILITY:
-		/* This can be removed once lustre stops calling it */
-		return 0;
-
-	case IOC_LIBCFS_LNET_DIST:
-		rc = LNetDist(data->ioc_nid, &data->ioc_nid, &data->ioc_u32[1]);
-		if (rc < 0 && rc != -EHOSTUNREACH)
-			return rc;
-
-		data->ioc_u32[0] = rc;
-		return 0;
-
-	case IOC_LIBCFS_TESTPROTOCOMPAT:
-		lnet_net_lock(LNET_LOCK_EX);
-		the_lnet.ln_testprotocompat = data->ioc_flags;
-		lnet_net_unlock(LNET_LOCK_EX);
-		return 0;
-
-	case IOC_LIBCFS_PING:
-		id.nid = data->ioc_nid;
-		id.pid = data->ioc_u32[0];
-		rc = lnet_ping(id, data->ioc_u32[1], /* timeout */
-			       (lnet_process_id_t *)data->ioc_pbuf1,
-			       data->ioc_plen1/sizeof(lnet_process_id_t));
-		if (rc < 0)
-			return rc;
-		data->ioc_count = rc;
-		return 0;
-
-	case IOC_LIBCFS_DEBUG_PEER: {
-		/* CAVEAT EMPTOR: this one designed for calling directly; not
-		 * via an ioctl */
-		id = *((lnet_process_id_t *) arg);
-
-		lnet_debug_peer(id.nid);
-
-		ni = lnet_net2ni(LNET_NIDNET(id.nid));
-		if (ni == NULL) {
-			CDEBUG(D_WARNING, "No NI for %s\n", libcfs_id2str(id));
-		} else {
-			if (ni->ni_lnd->lnd_ctl == NULL) {
-				CDEBUG(D_WARNING, "No ctl for %s\n",
-				       libcfs_id2str(id));
-			} else {
-				(void)ni->ni_lnd->lnd_ctl(ni, cmd, arg);
-			}
-
-			lnet_ni_decref(ni);
-		}
-		return 0;
-	}
-
-	default:
-		ni = lnet_net2ni(data->ioc_net);
-		if (ni == NULL)
-			return -EINVAL;
-
-		if (ni->ni_lnd->lnd_ctl == NULL)
-			rc = -EINVAL;
-		else
-			rc = ni->ni_lnd->lnd_ctl(ni, cmd, arg);
-
-		lnet_ni_decref(ni);
-		return rc;
-	}
-	/* not reached */
-}
-EXPORT_SYMBOL(LNetCtl);
-
-/**
- * Retrieve the lnet_process_id_t ID of LNet interface at \a index. Note that
- * all interfaces share a same PID, as requested by LNetNIInit().
- *
- * \param index Index of the interface to look up.
- * \param id On successful return, this location will hold the
- * lnet_process_id_t ID of the interface.
- *
- * \retval 0 If an interface exists at \a index.
- * \retval -ENOENT If no interface has been found.
- */
-int
-LNetGetId(unsigned int index, lnet_process_id_t *id)
-{
-	struct lnet_ni *ni;
-	struct list_head *tmp;
-	int cpt;
-	int rc = -ENOENT;
-
-	LASSERT(the_lnet.ln_init);
-
-	/* LNetNI initilization failed? */
-	if (the_lnet.ln_refcount == 0)
-		return rc;
-
-	cpt = lnet_net_lock_current();
-
-	list_for_each(tmp, &the_lnet.ln_nis) {
-		if (index-- != 0)
-			continue;
-
-		ni = list_entry(tmp, lnet_ni_t, ni_list);
-
-		id->nid = ni->ni_nid;
-		id->pid = the_lnet.ln_pid;
-		rc = 0;
-		break;
-	}
-
-	lnet_net_unlock(cpt);
-	return rc;
-}
-EXPORT_SYMBOL(LNetGetId);
-
-/**
- * Print a string representation of handle \a h into buffer \a str of
- * \a len bytes.
- */
-void
-LNetSnprintHandle(char *str, int len, lnet_handle_any_t h)
-{
-	snprintf(str, len, "%#llx", h.cookie);
-}
-EXPORT_SYMBOL(LNetSnprintHandle);
-
-static int
-lnet_create_ping_info(void)
-{
-	int i;
-	int n;
-	int rc;
-	unsigned int infosz;
-	lnet_ni_t *ni;
-	lnet_process_id_t id;
-	lnet_ping_info_t *pinfo;
-
-	for (n = 0; ; n++) {
-		rc = LNetGetId(n, &id);
-		if (rc == -ENOENT)
-			break;
-
-		LASSERT(rc == 0);
-	}
-
-	infosz = offsetof(lnet_ping_info_t, pi_ni[n]);
-	LIBCFS_ALLOC(pinfo, infosz);
-	if (pinfo == NULL) {
-		CERROR("Can't allocate ping info[%d]\n", n);
-		return -ENOMEM;
-	}
-
-	pinfo->pi_nnis    = n;
-	pinfo->pi_pid     = the_lnet.ln_pid;
-	pinfo->pi_magic   = LNET_PROTO_PING_MAGIC;
-	pinfo->pi_features = LNET_PING_FEAT_NI_STATUS;
-
-	for (i = 0; i < n; i++) {
-		lnet_ni_status_t *ns = &pinfo->pi_ni[i];
-
-		rc = LNetGetId(i, &id);
-		LASSERT(rc == 0);
-
-		ns->ns_nid    = id.nid;
-		ns->ns_status = LNET_NI_STATUS_UP;
-
-		lnet_net_lock(0);
-
-		ni = lnet_nid2ni_locked(id.nid, 0);
-		LASSERT(ni != NULL);
-
-		lnet_ni_lock(ni);
-		LASSERT(ni->ni_status == NULL);
-		ni->ni_status = ns;
-		lnet_ni_unlock(ni);
-
-		lnet_ni_decref_locked(ni, 0);
-		lnet_net_unlock(0);
-	}
-
-	the_lnet.ln_ping_info = pinfo;
-	return 0;
-}
-
-static void
-lnet_destroy_ping_info(void)
-{
-	struct lnet_ni *ni;
-
-	lnet_net_lock(0);
-
-	list_for_each_entry(ni, &the_lnet.ln_nis, ni_list) {
-		lnet_ni_lock(ni);
-		ni->ni_status = NULL;
-		lnet_ni_unlock(ni);
-	}
-
-	lnet_net_unlock(0);
-
-	LIBCFS_FREE(the_lnet.ln_ping_info,
-		    offsetof(lnet_ping_info_t,
-			     pi_ni[the_lnet.ln_ping_info->pi_nnis]));
-	the_lnet.ln_ping_info = NULL;
-}
-
-int
-lnet_ping_target_init(void)
-{
-	lnet_md_t md = { NULL };
-	lnet_handle_me_t meh;
-	lnet_process_id_t id;
-	int rc;
-	int rc2;
-	int infosz;
-
-	rc = lnet_create_ping_info();
-	if (rc != 0)
-		return rc;
-
-	/* We can have a tiny EQ since we only need to see the unlink event on
-	 * teardown, which by definition is the last one! */
-	rc = LNetEQAlloc(2, LNET_EQ_HANDLER_NONE, &the_lnet.ln_ping_target_eq);
-	if (rc != 0) {
-		CERROR("Can't allocate ping EQ: %d\n", rc);
-		goto failed_0;
-	}
-
-	memset(&id, 0, sizeof(lnet_process_id_t));
-	id.nid = LNET_NID_ANY;
-	id.pid = LNET_PID_ANY;
-
-	rc = LNetMEAttach(LNET_RESERVED_PORTAL, id,
-			  LNET_PROTO_PING_MATCHBITS, 0,
-			  LNET_UNLINK, LNET_INS_AFTER,
-			  &meh);
-	if (rc != 0) {
-		CERROR("Can't create ping ME: %d\n", rc);
-		goto failed_1;
-	}
-
-	/* initialize md content */
-	infosz = offsetof(lnet_ping_info_t,
-			  pi_ni[the_lnet.ln_ping_info->pi_nnis]);
-	md.start     = the_lnet.ln_ping_info;
-	md.length    = infosz;
-	md.threshold = LNET_MD_THRESH_INF;
-	md.max_size  = 0;
-	md.options   = LNET_MD_OP_GET | LNET_MD_TRUNCATE |
-		       LNET_MD_MANAGE_REMOTE;
-	md.user_ptr  = NULL;
-	md.eq_handle = the_lnet.ln_ping_target_eq;
-
-	rc = LNetMDAttach(meh, md,
-			  LNET_RETAIN,
-			  &the_lnet.ln_ping_target_md);
-	if (rc != 0) {
-		CERROR("Can't attach ping MD: %d\n", rc);
-		goto failed_2;
-	}
-
-	return 0;
-
- failed_2:
-	rc2 = LNetMEUnlink(meh);
-	LASSERT(rc2 == 0);
- failed_1:
-	rc2 = LNetEQFree(the_lnet.ln_ping_target_eq);
-	LASSERT(rc2 == 0);
- failed_0:
-	lnet_destroy_ping_info();
-	return rc;
-}
-
-void
-lnet_ping_target_fini(void)
-{
-	lnet_event_t event;
-	int rc;
-	int which;
-	int timeout_ms = 1000;
-	sigset_t blocked = cfs_block_allsigs();
-
-	LNetMDUnlink(the_lnet.ln_ping_target_md);
-	/* NB md could be busy; this just starts the unlink */
-
-	for (;;) {
-		rc = LNetEQPoll(&the_lnet.ln_ping_target_eq, 1,
-				timeout_ms, &event, &which);
-
-		/* I expect overflow... */
-		LASSERT(rc >= 0 || rc == -EOVERFLOW);
-
-		if (rc == 0) {
-			/* timed out: provide a diagnostic */
-			CWARN("Still waiting for ping MD to unlink\n");
-			timeout_ms *= 2;
-			continue;
-		}
-
-		/* Got a valid event */
-		if (event.unlinked)
-			break;
-	}
-
-	rc = LNetEQFree(the_lnet.ln_ping_target_eq);
-	LASSERT(rc == 0);
-	lnet_destroy_ping_info();
-	cfs_restore_sigs(blocked);
-}
-
-int
-lnet_ping(lnet_process_id_t id, int timeout_ms, lnet_process_id_t *ids, int n_ids)
-{
-	lnet_handle_eq_t eqh;
-	lnet_handle_md_t mdh;
-	lnet_event_t event;
-	lnet_md_t md = { NULL };
-	int which;
-	int unlinked = 0;
-	int replied = 0;
-	const int a_long_time = 60000; /* mS */
-	int infosz = offsetof(lnet_ping_info_t, pi_ni[n_ids]);
-	lnet_ping_info_t *info;
-	lnet_process_id_t tmpid;
-	int i;
-	int nob;
-	int rc;
-	int rc2;
-	sigset_t blocked;
-
-	if (n_ids <= 0 ||
-	    id.nid == LNET_NID_ANY ||
-	    timeout_ms > 500000 ||	      /* arbitrary limit! */
-	    n_ids > 20)			 /* arbitrary limit! */
-		return -EINVAL;
-
-	if (id.pid == LNET_PID_ANY)
-		id.pid = LUSTRE_SRV_LNET_PID;
-
-	LIBCFS_ALLOC(info, infosz);
-	if (info == NULL)
-		return -ENOMEM;
-
-	/* NB 2 events max (including any unlink event) */
-	rc = LNetEQAlloc(2, LNET_EQ_HANDLER_NONE, &eqh);
-	if (rc != 0) {
-		CERROR("Can't allocate EQ: %d\n", rc);
-		goto out_0;
-	}
-
-	/* initialize md content */
-	md.start     = info;
-	md.length    = infosz;
-	md.threshold = 2; /*GET/REPLY*/
-	md.max_size  = 0;
-	md.options   = LNET_MD_TRUNCATE;
-	md.user_ptr  = NULL;
-	md.eq_handle = eqh;
-
-	rc = LNetMDBind(md, LNET_UNLINK, &mdh);
-	if (rc != 0) {
-		CERROR("Can't bind MD: %d\n", rc);
-		goto out_1;
-	}
-
-	rc = LNetGet(LNET_NID_ANY, mdh, id,
-		     LNET_RESERVED_PORTAL,
-		     LNET_PROTO_PING_MATCHBITS, 0);
-
-	if (rc != 0) {
-		/* Don't CERROR; this could be deliberate! */
-
-		rc2 = LNetMDUnlink(mdh);
-		LASSERT(rc2 == 0);
-
-		/* NB must wait for the UNLINK event below... */
-		unlinked = 1;
-		timeout_ms = a_long_time;
-	}
-
-	do {
-		/* MUST block for unlink to complete */
-		if (unlinked)
-			blocked = cfs_block_allsigs();
-
-		rc2 = LNetEQPoll(&eqh, 1, timeout_ms, &event, &which);
-
-		if (unlinked)
-			cfs_restore_sigs(blocked);
-
-		CDEBUG(D_NET, "poll %d(%d %d)%s\n", rc2,
-		       (rc2 <= 0) ? -1 : event.type,
-		       (rc2 <= 0) ? -1 : event.status,
-		       (rc2 > 0 && event.unlinked) ? " unlinked" : "");
-
-		LASSERT(rc2 != -EOVERFLOW);     /* can't miss anything */
-
-		if (rc2 <= 0 || event.status != 0) {
-			/* timeout or error */
-			if (!replied && rc == 0)
-				rc = (rc2 < 0) ? rc2 :
-				     (rc2 == 0) ? -ETIMEDOUT :
-				     event.status;
-
-			if (!unlinked) {
-				/* Ensure completion in finite time... */
-				LNetMDUnlink(mdh);
-				/* No assertion (racing with network) */
-				unlinked = 1;
-				timeout_ms = a_long_time;
-			} else if (rc2 == 0) {
-				/* timed out waiting for unlink */
-				CWARN("ping %s: late network completion\n",
-				      libcfs_id2str(id));
-			}
-		} else if (event.type == LNET_EVENT_REPLY) {
-			replied = 1;
-			rc = event.mlength;
-		}
-
-	} while (rc2 <= 0 || !event.unlinked);
-
-	if (!replied) {
-		if (rc >= 0)
-			CWARN("%s: Unexpected rc >= 0 but no reply!\n",
-			      libcfs_id2str(id));
-		rc = -EIO;
-		goto out_1;
-	}
-
-	nob = rc;
-	LASSERT(nob >= 0 && nob <= infosz);
-
-	rc = -EPROTO;			   /* if I can't parse... */
-
-	if (nob < 8) {
-		/* can't check magic/version */
-		CERROR("%s: ping info too short %d\n",
-		       libcfs_id2str(id), nob);
-		goto out_1;
-	}
-
-	if (info->pi_magic == __swab32(LNET_PROTO_PING_MAGIC)) {
-		lnet_swap_pinginfo(info);
-	} else if (info->pi_magic != LNET_PROTO_PING_MAGIC) {
-		CERROR("%s: Unexpected magic %08x\n",
-		       libcfs_id2str(id), info->pi_magic);
-		goto out_1;
-	}
-
-	if ((info->pi_features & LNET_PING_FEAT_NI_STATUS) == 0) {
-		CERROR("%s: ping w/o NI status: 0x%x\n",
-		       libcfs_id2str(id), info->pi_features);
-		goto out_1;
-	}
-
-	if (nob < offsetof(lnet_ping_info_t, pi_ni[0])) {
-		CERROR("%s: Short reply %d(%d min)\n", libcfs_id2str(id),
-		       nob, (int)offsetof(lnet_ping_info_t, pi_ni[0]));
-		goto out_1;
-	}
-
-	if (info->pi_nnis < n_ids)
-		n_ids = info->pi_nnis;
-
-	if (nob < offsetof(lnet_ping_info_t, pi_ni[n_ids])) {
-		CERROR("%s: Short reply %d(%d expected)\n", libcfs_id2str(id),
-		       nob, (int)offsetof(lnet_ping_info_t, pi_ni[n_ids]));
-		goto out_1;
-	}
-
-	rc = -EFAULT;			   /* If I SEGV... */
-
-	memset(&tmpid, 0, sizeof(tmpid));
-	for (i = 0; i < n_ids; i++) {
-		tmpid.pid = info->pi_pid;
-		tmpid.nid = info->pi_ni[i].ns_nid;
-		if (copy_to_user(&ids[i], &tmpid, sizeof(tmpid)))
-			goto out_1;
-	}
-	rc = info->pi_nnis;
-
- out_1:
-	rc2 = LNetEQFree(eqh);
-	if (rc2 != 0)
-		CERROR("rc2 %d\n", rc2);
-	LASSERT(rc2 == 0);
-
- out_0:
-	LIBCFS_FREE(info, infosz);
-	return rc;
-}
diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
deleted file mode 100644
index 9c576ce2f455..000000000000
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ /dev/null
@@ -1,1212 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include "../../include/linux/lnet/lib-lnet.h"
-
-struct lnet_text_buf_t {	    /* tmp struct for parsing routes */
-	struct list_head ltb_list;	/* stash on lists */
-	int ltb_size;	/* allocated size */
-	char ltb_text[0];     /* text buffer */
-};
-
-static int lnet_tbnob;			/* track text buf allocation */
-#define LNET_MAX_TEXTBUF_NOB     (64<<10)	/* bound allocation */
-#define LNET_SINGLE_TEXTBUF_NOB  (4<<10)
-
-static void
-lnet_syntax(char *name, char *str, int offset, int width)
-{
-	static char dots[LNET_SINGLE_TEXTBUF_NOB];
-	static char dashes[LNET_SINGLE_TEXTBUF_NOB];
-
-	memset(dots, '.', sizeof(dots));
-	dots[sizeof(dots)-1] = 0;
-	memset(dashes, '-', sizeof(dashes));
-	dashes[sizeof(dashes)-1] = 0;
-
-	LCONSOLE_ERROR_MSG(0x10f, "Error parsing '%s=\"%s\"'\n", name, str);
-	LCONSOLE_ERROR_MSG(0x110, "here...........%.*s..%.*s|%.*s|\n",
-			   (int)strlen(name), dots, offset, dots,
-			    (width < 1) ? 0 : width - 1, dashes);
-}
-
-static int
-lnet_issep(char c)
-{
-	switch (c) {
-	case '\n':
-	case '\r':
-	case ';':
-		return 1;
-	default:
-		return 0;
-	}
-}
-
-static int
-lnet_net_unique(__u32 net, struct list_head *nilist)
-{
-	struct list_head *tmp;
-	lnet_ni_t *ni;
-
-	list_for_each(tmp, nilist) {
-		ni = list_entry(tmp, lnet_ni_t, ni_list);
-
-		if (LNET_NIDNET(ni->ni_nid) == net)
-			return 0;
-	}
-
-	return 1;
-}
-
-void
-lnet_ni_free(struct lnet_ni *ni)
-{
-	if (ni->ni_refs != NULL)
-		cfs_percpt_free(ni->ni_refs);
-
-	if (ni->ni_tx_queues != NULL)
-		cfs_percpt_free(ni->ni_tx_queues);
-
-	if (ni->ni_cpts != NULL)
-		cfs_expr_list_values_free(ni->ni_cpts, ni->ni_ncpts);
-
-	LIBCFS_FREE(ni, sizeof(*ni));
-}
-
-static lnet_ni_t *
-lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist)
-{
-	struct lnet_tx_queue *tq;
-	struct lnet_ni *ni;
-	int rc;
-	int i;
-
-	if (!lnet_net_unique(net, nilist)) {
-		LCONSOLE_ERROR_MSG(0x111, "Duplicate network specified: %s\n",
-				   libcfs_net2str(net));
-		return NULL;
-	}
-
-	LIBCFS_ALLOC(ni, sizeof(*ni));
-	if (ni == NULL) {
-		CERROR("Out of memory creating network %s\n",
-		       libcfs_net2str(net));
-		return NULL;
-	}
-
-	spin_lock_init(&ni->ni_lock);
-	INIT_LIST_HEAD(&ni->ni_cptlist);
-	ni->ni_refs = cfs_percpt_alloc(lnet_cpt_table(),
-				       sizeof(*ni->ni_refs[0]));
-	if (ni->ni_refs == NULL)
-		goto failed;
-
-	ni->ni_tx_queues = cfs_percpt_alloc(lnet_cpt_table(),
-					    sizeof(*ni->ni_tx_queues[0]));
-	if (ni->ni_tx_queues == NULL)
-		goto failed;
-
-	cfs_percpt_for_each(tq, i, ni->ni_tx_queues)
-		INIT_LIST_HEAD(&tq->tq_delayed);
-
-	if (el == NULL) {
-		ni->ni_cpts  = NULL;
-		ni->ni_ncpts = LNET_CPT_NUMBER;
-	} else {
-		rc = cfs_expr_list_values(el, LNET_CPT_NUMBER, &ni->ni_cpts);
-		if (rc <= 0) {
-			CERROR("Failed to set CPTs for NI %s: %d\n",
-			       libcfs_net2str(net), rc);
-			goto failed;
-		}
-
-		LASSERT(rc <= LNET_CPT_NUMBER);
-		if (rc == LNET_CPT_NUMBER) {
-			LIBCFS_FREE(ni->ni_cpts, rc * sizeof(ni->ni_cpts[0]));
-			ni->ni_cpts = NULL;
-		}
-
-		ni->ni_ncpts = rc;
-	}
-
-	/* LND will fill in the address part of the NID */
-	ni->ni_nid = LNET_MKNID(net, 0);
-	ni->ni_last_alive = get_seconds();
-	list_add_tail(&ni->ni_list, nilist);
-	return ni;
- failed:
-	lnet_ni_free(ni);
-	return NULL;
-}
-
-int
-lnet_parse_networks(struct list_head *nilist, char *networks)
-{
-	struct cfs_expr_list *el = NULL;
-	int tokensize = strlen(networks) + 1;
-	char *tokens;
-	char *str;
-	char *tmp;
-	struct lnet_ni *ni;
-	__u32 net;
-	int nnets = 0;
-
-	if (strlen(networks) > LNET_SINGLE_TEXTBUF_NOB) {
-		/* _WAY_ conservative */
-		LCONSOLE_ERROR_MSG(0x112,
-				   "Can't parse networks: string too long\n");
-		return -EINVAL;
-	}
-
-	LIBCFS_ALLOC(tokens, tokensize);
-	if (tokens == NULL) {
-		CERROR("Can't allocate net tokens\n");
-		return -ENOMEM;
-	}
-
-	the_lnet.ln_network_tokens = tokens;
-	the_lnet.ln_network_tokens_nob = tokensize;
-	memcpy(tokens, networks, tokensize);
-	str = tmp = tokens;
-
-	/* Add in the loopback network */
-	ni = lnet_ni_alloc(LNET_MKNET(LOLND, 0), NULL, nilist);
-	if (ni == NULL)
-		goto failed;
-
-	while (str != NULL && *str != 0) {
-		char *comma = strchr(str, ',');
-		char *bracket = strchr(str, '(');
-		char *square = strchr(str, '[');
-		char *iface;
-		int niface;
-		int rc;
-
-		/* NB we don't check interface conflicts here; it's the LNDs
-		 * responsibility (if it cares at all) */
-
-		if (square != NULL && (comma == NULL || square < comma)) {
-			/* i.e: o2ib0(ib0)[1,2], number between square
-			 * brackets are CPTs this NI needs to be bond */
-			if (bracket != NULL && bracket > square) {
-				tmp = square;
-				goto failed_syntax;
-			}
-
-			tmp = strchr(square, ']');
-			if (tmp == NULL) {
-				tmp = square;
-				goto failed_syntax;
-			}
-
-			rc = cfs_expr_list_parse(square, tmp - square + 1,
-						 0, LNET_CPT_NUMBER - 1, &el);
-			if (rc != 0) {
-				tmp = square;
-				goto failed_syntax;
-			}
-
-			while (square <= tmp)
-				*square++ = ' ';
-		}
-
-		if (bracket == NULL ||
-		    (comma != NULL && comma < bracket)) {
-
-			/* no interface list specified */
-
-			if (comma != NULL)
-				*comma++ = 0;
-			net = libcfs_str2net(cfs_trimwhite(str));
-
-			if (net == LNET_NIDNET(LNET_NID_ANY)) {
-				LCONSOLE_ERROR_MSG(0x113,
-						   "Unrecognised network type\n");
-				tmp = str;
-				goto failed_syntax;
-			}
-
-			if (LNET_NETTYP(net) != LOLND && /* LO is implicit */
-			    lnet_ni_alloc(net, el, nilist) == NULL)
-				goto failed;
-
-			if (el != NULL) {
-				cfs_expr_list_free(el);
-				el = NULL;
-			}
-
-			str = comma;
-			continue;
-		}
-
-		*bracket = 0;
-		net = libcfs_str2net(cfs_trimwhite(str));
-		if (net == LNET_NIDNET(LNET_NID_ANY)) {
-			tmp = str;
-			goto failed_syntax;
-		}
-
-		nnets++;
-		ni = lnet_ni_alloc(net, el, nilist);
-		if (ni == NULL)
-			goto failed;
-
-		if (el != NULL) {
-			cfs_expr_list_free(el);
-			el = NULL;
-		}
-
-		niface = 0;
-		iface = bracket + 1;
-
-		bracket = strchr(iface, ')');
-		if (bracket == NULL) {
-			tmp = iface;
-			goto failed_syntax;
-		}
-
-		*bracket = 0;
-		do {
-			comma = strchr(iface, ',');
-			if (comma != NULL)
-				*comma++ = 0;
-
-			iface = cfs_trimwhite(iface);
-			if (*iface == 0) {
-				tmp = iface;
-				goto failed_syntax;
-			}
-
-			if (niface == LNET_MAX_INTERFACES) {
-				LCONSOLE_ERROR_MSG(0x115,
-						   "Too many interfaces for net %s\n",
-						   libcfs_net2str(net));
-				goto failed;
-			}
-
-			ni->ni_interfaces[niface++] = iface;
-			iface = comma;
-		} while (iface != NULL);
-
-		str = bracket + 1;
-		comma = strchr(bracket + 1, ',');
-		if (comma != NULL) {
-			*comma = 0;
-			str = cfs_trimwhite(str);
-			if (*str != 0) {
-				tmp = str;
-				goto failed_syntax;
-			}
-			str = comma + 1;
-			continue;
-		}
-
-		str = cfs_trimwhite(str);
-		if (*str != 0) {
-			tmp = str;
-			goto failed_syntax;
-		}
-	}
-
-	LASSERT(!list_empty(nilist));
-	return 0;
-
- failed_syntax:
-	lnet_syntax("networks", networks, (int)(tmp - tokens), strlen(tmp));
- failed:
-	while (!list_empty(nilist)) {
-		ni = list_entry(nilist->next, lnet_ni_t, ni_list);
-
-		list_del(&ni->ni_list);
-		lnet_ni_free(ni);
-	}
-
-	if (el != NULL)
-		cfs_expr_list_free(el);
-
-	LIBCFS_FREE(tokens, tokensize);
-	the_lnet.ln_network_tokens = NULL;
-
-	return -EINVAL;
-}
-
-static struct lnet_text_buf_t *
-lnet_new_text_buf(int str_len)
-{
-	struct lnet_text_buf_t *ltb;
-	int nob;
-
-	/* NB allocate space for the terminating 0 */
-	nob = offsetof(struct lnet_text_buf_t, ltb_text[str_len + 1]);
-	if (nob > LNET_SINGLE_TEXTBUF_NOB) {
-		/* _way_ conservative for "route net gateway..." */
-		CERROR("text buffer too big\n");
-		return NULL;
-	}
-
-	if (lnet_tbnob + nob > LNET_MAX_TEXTBUF_NOB) {
-		CERROR("Too many text buffers\n");
-		return NULL;
-	}
-
-	LIBCFS_ALLOC(ltb, nob);
-	if (ltb == NULL)
-		return NULL;
-
-	ltb->ltb_size = nob;
-	ltb->ltb_text[0] = 0;
-	lnet_tbnob += nob;
-	return ltb;
-}
-
-static void
-lnet_free_text_buf(struct lnet_text_buf_t *ltb)
-{
-	lnet_tbnob -= ltb->ltb_size;
-	LIBCFS_FREE(ltb, ltb->ltb_size);
-}
-
-static void
-lnet_free_text_bufs(struct list_head *tbs)
-{
-	struct lnet_text_buf_t *ltb;
-
-	while (!list_empty(tbs)) {
-		ltb = list_entry(tbs->next, struct lnet_text_buf_t, ltb_list);
-
-		list_del(&ltb->ltb_list);
-		lnet_free_text_buf(ltb);
-	}
-}
-
-static int
-lnet_str2tbs_sep(struct list_head *tbs, char *str)
-{
-	struct list_head pending;
-	char *sep;
-	int nob;
-	int i;
-	struct lnet_text_buf_t *ltb;
-
-	INIT_LIST_HEAD(&pending);
-
-	/* Split 'str' into separate commands */
-	for (;;) {
-		/* skip leading whitespace */
-		while (isspace(*str))
-			str++;
-
-		/* scan for separator or comment */
-		for (sep = str; *sep != 0; sep++)
-			if (lnet_issep(*sep) || *sep == '#')
-				break;
-
-		nob = (int)(sep - str);
-		if (nob > 0) {
-			ltb = lnet_new_text_buf(nob);
-			if (ltb == NULL) {
-				lnet_free_text_bufs(&pending);
-				return -1;
-			}
-
-			for (i = 0; i < nob; i++)
-				if (isspace(str[i]))
-					ltb->ltb_text[i] = ' ';
-				else
-					ltb->ltb_text[i] = str[i];
-
-			ltb->ltb_text[nob] = 0;
-
-			list_add_tail(&ltb->ltb_list, &pending);
-		}
-
-		if (*sep == '#') {
-			/* scan for separator */
-			do {
-				sep++;
-			} while (*sep != 0 && !lnet_issep(*sep));
-		}
-
-		if (*sep == 0)
-			break;
-
-		str = sep + 1;
-	}
-
-	list_splice(&pending, tbs->prev);
-	return 0;
-}
-
-static int
-lnet_expand1tb(struct list_head *list,
-	       char *str, char *sep1, char *sep2,
-	       char *item, int itemlen)
-{
-	int len1 = (int)(sep1 - str);
-	int len2 = strlen(sep2 + 1);
-	struct lnet_text_buf_t *ltb;
-
-	LASSERT(*sep1 == '[');
-	LASSERT(*sep2 == ']');
-
-	ltb = lnet_new_text_buf(len1 + itemlen + len2);
-	if (ltb == NULL)
-		return -ENOMEM;
-
-	memcpy(ltb->ltb_text, str, len1);
-	memcpy(&ltb->ltb_text[len1], item, itemlen);
-	memcpy(&ltb->ltb_text[len1+itemlen], sep2 + 1, len2);
-	ltb->ltb_text[len1 + itemlen + len2] = 0;
-
-	list_add_tail(&ltb->ltb_list, list);
-	return 0;
-}
-
-static int
-lnet_str2tbs_expand(struct list_head *tbs, char *str)
-{
-	char num[16];
-	struct list_head pending;
-	char *sep;
-	char *sep2;
-	char *parsed;
-	char *enditem;
-	int lo;
-	int hi;
-	int stride;
-	int i;
-	int nob;
-	int scanned;
-
-	INIT_LIST_HEAD(&pending);
-
-	sep = strchr(str, '[');
-	if (sep == NULL)			/* nothing to expand */
-		return 0;
-
-	sep2 = strchr(sep, ']');
-	if (sep2 == NULL)
-		goto failed;
-
-	for (parsed = sep; parsed < sep2; parsed = enditem) {
-
-		enditem = ++parsed;
-		while (enditem < sep2 && *enditem != ',')
-			enditem++;
-
-		if (enditem == parsed)		/* no empty items */
-			goto failed;
-
-		if (sscanf(parsed, "%d-%d/%d%n", &lo, &hi,
-			   &stride, &scanned) < 3) {
-
-			if (sscanf(parsed, "%d-%d%n", &lo, &hi, &scanned) < 2) {
-
-				/* simple string enumeration */
-				if (lnet_expand1tb(
-				     &pending, str, sep, sep2,
-				     parsed,
-				     (int)(enditem - parsed)) != 0) {
-					goto failed;
-				}
-
-				continue;
-			}
-
-			stride = 1;
-		}
-
-		/* range expansion */
-
-		if (enditem != parsed + scanned) /* no trailing junk */
-			goto failed;
-
-		if (hi < 0 || lo < 0 || stride < 0 || hi < lo ||
-		    (hi - lo) % stride != 0)
-			goto failed;
-
-		for (i = lo; i <= hi; i += stride) {
-
-			snprintf(num, sizeof(num), "%d", i);
-			nob = strlen(num);
-			if (nob + 1 == sizeof(num))
-				goto failed;
-
-			if (lnet_expand1tb(&pending, str, sep, sep2,
-					   num, nob) != 0)
-				goto failed;
-		}
-	}
-
-	list_splice(&pending, tbs->prev);
-	return 1;
-
- failed:
-	lnet_free_text_bufs(&pending);
-	return -1;
-}
-
-static int
-lnet_parse_hops(char *str, unsigned int *hops)
-{
-	int len = strlen(str);
-	int nob = len;
-
-	return (sscanf(str, "%u%n", hops, &nob) >= 1 &&
-		nob == len &&
-		*hops > 0 && *hops < 256);
-}
-
-#define LNET_PRIORITY_SEPARATOR (':')
-
-static int
-lnet_parse_priority(char *str, unsigned int *priority, char **token)
-{
-	int nob;
-	char *sep;
-	int len;
-
-	sep = strchr(str, LNET_PRIORITY_SEPARATOR);
-	if (sep == NULL) {
-		*priority = 0;
-		return 0;
-	}
-	len = strlen(sep + 1);
-
-	if ((sscanf((sep+1), "%u%n", priority, &nob) < 1) || (len != nob)) {
-		/* Update the caller's token pointer so it treats the found
-		   priority as the token to report in the error message. */
-		*token += sep - str + 1;
-		return -1;
-	}
-
-	CDEBUG(D_NET, "gateway %s, priority %d, nob %d\n", str, *priority, nob);
-
-	/*
-	 * Change priority separator to \0 to be able to parse NID
-	 */
-	*sep = '\0';
-	return 0;
-}
-
-static int
-lnet_parse_route(char *str, int *im_a_router)
-{
-	/* static scratch buffer OK (single threaded) */
-	static char cmd[LNET_SINGLE_TEXTBUF_NOB];
-
-	struct list_head nets;
-	struct list_head gateways;
-	struct list_head *tmp1;
-	struct list_head *tmp2;
-	__u32 net;
-	lnet_nid_t nid;
-	struct lnet_text_buf_t *ltb;
-	int rc;
-	char *sep;
-	char *token = str;
-	int ntokens = 0;
-	int myrc = -1;
-	unsigned int hops;
-	int got_hops = 0;
-	unsigned int priority = 0;
-
-	INIT_LIST_HEAD(&gateways);
-	INIT_LIST_HEAD(&nets);
-
-	/* save a copy of the string for error messages */
-	strncpy(cmd, str, sizeof(cmd) - 1);
-	cmd[sizeof(cmd) - 1] = 0;
-
-	sep = str;
-	for (;;) {
-		/* scan for token start */
-		while (isspace(*sep))
-			sep++;
-		if (*sep == 0) {
-			if (ntokens < (got_hops ? 3 : 2))
-				goto token_error;
-			break;
-		}
-
-		ntokens++;
-		token = sep++;
-
-		/* scan for token end */
-		while (*sep != 0 && !isspace(*sep))
-			sep++;
-		if (*sep != 0)
-			*sep++ = 0;
-
-		if (ntokens == 1) {
-			tmp2 = &nets;		/* expanding nets */
-		} else if (ntokens == 2 &&
-			   lnet_parse_hops(token, &hops)) {
-			got_hops = 1;	   /* got a hop count */
-			continue;
-		} else {
-			tmp2 = &gateways;	/* expanding gateways */
-		}
-
-		ltb = lnet_new_text_buf(strlen(token));
-		if (ltb == NULL)
-			goto out;
-
-		strcpy(ltb->ltb_text, token);
-		tmp1 = &ltb->ltb_list;
-		list_add_tail(tmp1, tmp2);
-
-		while (tmp1 != tmp2) {
-			ltb = list_entry(tmp1, struct lnet_text_buf_t,
-					 ltb_list);
-
-			rc = lnet_str2tbs_expand(tmp1->next, ltb->ltb_text);
-			if (rc < 0)
-				goto token_error;
-
-			tmp1 = tmp1->next;
-
-			if (rc > 0) {		/* expanded! */
-				list_del(&ltb->ltb_list);
-				lnet_free_text_buf(ltb);
-				continue;
-			}
-
-			if (ntokens == 1) {
-				net = libcfs_str2net(ltb->ltb_text);
-				if (net == LNET_NIDNET(LNET_NID_ANY) ||
-				    LNET_NETTYP(net) == LOLND)
-					goto token_error;
-			} else {
-				rc = lnet_parse_priority(ltb->ltb_text,
-							 &priority, &token);
-				if (rc < 0)
-					goto token_error;
-
-				nid = libcfs_str2nid(ltb->ltb_text);
-				if (nid == LNET_NID_ANY ||
-				    LNET_NETTYP(LNET_NIDNET(nid)) == LOLND)
-					goto token_error;
-			}
-		}
-	}
-
-	if (!got_hops)
-		hops = 1;
-
-	LASSERT(!list_empty(&nets));
-	LASSERT(!list_empty(&gateways));
-
-	list_for_each(tmp1, &nets) {
-		ltb = list_entry(tmp1, struct lnet_text_buf_t, ltb_list);
-		net = libcfs_str2net(ltb->ltb_text);
-		LASSERT(net != LNET_NIDNET(LNET_NID_ANY));
-
-		list_for_each(tmp2, &gateways) {
-			ltb = list_entry(tmp2, struct lnet_text_buf_t,
-					 ltb_list);
-			nid = libcfs_str2nid(ltb->ltb_text);
-			LASSERT(nid != LNET_NID_ANY);
-
-			if (lnet_islocalnid(nid)) {
-				*im_a_router = 1;
-				continue;
-			}
-
-			rc = lnet_add_route(net, hops, nid, priority);
-			if (rc != 0) {
-				CERROR("Can't create route to %s via %s\n",
-				       libcfs_net2str(net),
-				       libcfs_nid2str(nid));
-				goto out;
-			}
-		}
-	}
-
-	myrc = 0;
-	goto out;
-
- token_error:
-	lnet_syntax("routes", cmd, (int)(token - str), strlen(token));
- out:
-	lnet_free_text_bufs(&nets);
-	lnet_free_text_bufs(&gateways);
-	return myrc;
-}
-
-static int
-lnet_parse_route_tbs(struct list_head *tbs, int *im_a_router)
-{
-	struct lnet_text_buf_t *ltb;
-
-	while (!list_empty(tbs)) {
-		ltb = list_entry(tbs->next, struct lnet_text_buf_t, ltb_list);
-
-		if (lnet_parse_route(ltb->ltb_text, im_a_router) < 0) {
-			lnet_free_text_bufs(tbs);
-			return -EINVAL;
-		}
-
-		list_del(&ltb->ltb_list);
-		lnet_free_text_buf(ltb);
-	}
-
-	return 0;
-}
-
-int
-lnet_parse_routes(char *routes, int *im_a_router)
-{
-	struct list_head tbs;
-	int rc = 0;
-
-	*im_a_router = 0;
-
-	INIT_LIST_HEAD(&tbs);
-
-	if (lnet_str2tbs_sep(&tbs, routes) < 0) {
-		CERROR("Error parsing routes\n");
-		rc = -EINVAL;
-	} else {
-		rc = lnet_parse_route_tbs(&tbs, im_a_router);
-	}
-
-	LASSERT(lnet_tbnob == 0);
-	return rc;
-}
-
-static int
-lnet_match_network_token(char *token, int len, __u32 *ipaddrs, int nip)
-{
-	LIST_HEAD(list);
-	int rc;
-	int i;
-
-	rc = cfs_ip_addr_parse(token, len, &list);
-	if (rc != 0)
-		return rc;
-
-	for (rc = i = 0; !rc && i < nip; i++)
-		rc = cfs_ip_addr_match(ipaddrs[i], &list);
-
-	cfs_ip_addr_free(&list);
-
-	return rc;
-}
-
-static int
-lnet_match_network_tokens(char *net_entry, __u32 *ipaddrs, int nip)
-{
-	static char tokens[LNET_SINGLE_TEXTBUF_NOB];
-
-	int matched = 0;
-	int ntokens = 0;
-	int len;
-	char *net = NULL;
-	char *sep;
-	char *token;
-	int rc;
-
-	LASSERT(strlen(net_entry) < sizeof(tokens));
-
-	/* work on a copy of the string */
-	strcpy(tokens, net_entry);
-	sep = tokens;
-	for (;;) {
-		/* scan for token start */
-		while (isspace(*sep))
-			sep++;
-		if (*sep == 0)
-			break;
-
-		token = sep++;
-
-		/* scan for token end */
-		while (*sep != 0 && !isspace(*sep))
-			sep++;
-		if (*sep != 0)
-			*sep++ = 0;
-
-		if (ntokens++ == 0) {
-			net = token;
-			continue;
-		}
-
-		len = strlen(token);
-
-		rc = lnet_match_network_token(token, len, ipaddrs, nip);
-		if (rc < 0) {
-			lnet_syntax("ip2nets", net_entry,
-				    (int)(token - tokens), len);
-			return rc;
-		}
-
-		matched |= (rc != 0);
-	}
-
-	if (!matched)
-		return 0;
-
-	strcpy(net_entry, net);		 /* replace with matched net */
-	return 1;
-}
-
-static __u32
-lnet_netspec2net(char *netspec)
-{
-	char *bracket = strchr(netspec, '(');
-	__u32 net;
-
-	if (bracket != NULL)
-		*bracket = 0;
-
-	net = libcfs_str2net(netspec);
-
-	if (bracket != NULL)
-		*bracket = '(';
-
-	return net;
-}
-
-static int
-lnet_splitnets(char *source, struct list_head *nets)
-{
-	int offset = 0;
-	int offset2;
-	int len;
-	struct lnet_text_buf_t *tb;
-	struct lnet_text_buf_t *tb2;
-	struct list_head *t;
-	char *sep;
-	char *bracket;
-	__u32 net;
-
-	LASSERT(!list_empty(nets));
-	LASSERT(nets->next == nets->prev);     /* single entry */
-
-	tb = list_entry(nets->next, struct lnet_text_buf_t, ltb_list);
-
-	for (;;) {
-		sep = strchr(tb->ltb_text, ',');
-		bracket = strchr(tb->ltb_text, '(');
-
-		if (sep != NULL &&
-		    bracket != NULL &&
-		    bracket < sep) {
-			/* netspec lists interfaces... */
-
-			offset2 = offset + (int)(bracket - tb->ltb_text);
-			len = strlen(bracket);
-
-			bracket = strchr(bracket + 1, ')');
-
-			if (bracket == NULL ||
-			    !(bracket[1] == ',' || bracket[1] == 0)) {
-				lnet_syntax("ip2nets", source, offset2, len);
-				return -EINVAL;
-			}
-
-			sep = (bracket[1] == 0) ? NULL : bracket + 1;
-		}
-
-		if (sep != NULL)
-			*sep++ = 0;
-
-		net = lnet_netspec2net(tb->ltb_text);
-		if (net == LNET_NIDNET(LNET_NID_ANY)) {
-			lnet_syntax("ip2nets", source, offset,
-				    strlen(tb->ltb_text));
-			return -EINVAL;
-		}
-
-		list_for_each(t, nets) {
-			tb2 = list_entry(t, struct lnet_text_buf_t, ltb_list);
-
-			if (tb2 == tb)
-				continue;
-
-			if (net == lnet_netspec2net(tb2->ltb_text)) {
-				/* duplicate network */
-				lnet_syntax("ip2nets", source, offset,
-					    strlen(tb->ltb_text));
-				return -EINVAL;
-			}
-		}
-
-		if (sep == NULL)
-			return 0;
-
-		offset += (int)(sep - tb->ltb_text);
-		tb2 = lnet_new_text_buf(strlen(sep));
-		if (tb2 == NULL)
-			return -ENOMEM;
-
-		strcpy(tb2->ltb_text, sep);
-		list_add_tail(&tb2->ltb_list, nets);
-
-		tb = tb2;
-	}
-}
-
-static int
-lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
-{
-	static char networks[LNET_SINGLE_TEXTBUF_NOB];
-	static char source[LNET_SINGLE_TEXTBUF_NOB];
-
-	struct list_head raw_entries;
-	struct list_head matched_nets;
-	struct list_head current_nets;
-	struct list_head *t;
-	struct list_head *t2;
-	struct lnet_text_buf_t *tb;
-	struct lnet_text_buf_t *tb2;
-	__u32 net1;
-	__u32 net2;
-	int len;
-	int count;
-	int dup;
-	int rc;
-
-	INIT_LIST_HEAD(&raw_entries);
-	if (lnet_str2tbs_sep(&raw_entries, ip2nets) < 0) {
-		CERROR("Error parsing ip2nets\n");
-		LASSERT(lnet_tbnob == 0);
-		return -EINVAL;
-	}
-
-	INIT_LIST_HEAD(&matched_nets);
-	INIT_LIST_HEAD(&current_nets);
-	networks[0] = 0;
-	count = 0;
-	len = 0;
-	rc = 0;
-
-	while (!list_empty(&raw_entries)) {
-		tb = list_entry(raw_entries.next, struct lnet_text_buf_t,
-				    ltb_list);
-
-		strncpy(source, tb->ltb_text, sizeof(source)-1);
-		source[sizeof(source)-1] = 0;
-
-		/* replace ltb_text with the network(s) add on match */
-		rc = lnet_match_network_tokens(tb->ltb_text, ipaddrs, nip);
-		if (rc < 0)
-			break;
-
-		list_del(&tb->ltb_list);
-
-		if (rc == 0) {		  /* no match */
-			lnet_free_text_buf(tb);
-			continue;
-		}
-
-		/* split into separate networks */
-		INIT_LIST_HEAD(&current_nets);
-		list_add(&tb->ltb_list, &current_nets);
-		rc = lnet_splitnets(source, &current_nets);
-		if (rc < 0)
-			break;
-
-		dup = 0;
-		list_for_each(t, &current_nets) {
-			tb = list_entry(t, struct lnet_text_buf_t, ltb_list);
-			net1 = lnet_netspec2net(tb->ltb_text);
-			LASSERT(net1 != LNET_NIDNET(LNET_NID_ANY));
-
-			list_for_each(t2, &matched_nets) {
-				tb2 = list_entry(t2, struct lnet_text_buf_t,
-						     ltb_list);
-				net2 = lnet_netspec2net(tb2->ltb_text);
-				LASSERT(net2 != LNET_NIDNET(LNET_NID_ANY));
-
-				if (net1 == net2) {
-					dup = 1;
-					break;
-				}
-			}
-
-			if (dup)
-				break;
-		}
-
-		if (dup) {
-			lnet_free_text_bufs(&current_nets);
-			continue;
-		}
-
-		list_for_each_safe(t, t2, &current_nets) {
-			tb = list_entry(t, struct lnet_text_buf_t, ltb_list);
-
-			list_del(&tb->ltb_list);
-			list_add_tail(&tb->ltb_list, &matched_nets);
-
-			len += snprintf(networks + len, sizeof(networks) - len,
-					"%s%s", (len == 0) ? "" : ",",
-					tb->ltb_text);
-
-			if (len >= sizeof(networks)) {
-				CERROR("Too many matched networks\n");
-				rc = -E2BIG;
-				goto out;
-			}
-		}
-
-		count++;
-	}
-
- out:
-	lnet_free_text_bufs(&raw_entries);
-	lnet_free_text_bufs(&matched_nets);
-	lnet_free_text_bufs(&current_nets);
-	LASSERT(lnet_tbnob == 0);
-
-	if (rc < 0)
-		return rc;
-
-	*networksp = networks;
-	return count;
-}
-
-static void
-lnet_ipaddr_free_enumeration(__u32 *ipaddrs, int nip)
-{
-	LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs));
-}
-
-static int
-lnet_ipaddr_enumerate(__u32 **ipaddrsp)
-{
-	int up;
-	__u32 netmask;
-	__u32 *ipaddrs;
-	__u32 *ipaddrs2;
-	int nip;
-	char **ifnames;
-	int nif = lnet_ipif_enumerate(&ifnames);
-	int i;
-	int rc;
-
-	if (nif <= 0)
-		return nif;
-
-	LIBCFS_ALLOC(ipaddrs, nif * sizeof(*ipaddrs));
-	if (ipaddrs == NULL) {
-		CERROR("Can't allocate ipaddrs[%d]\n", nif);
-		lnet_ipif_free_enumeration(ifnames, nif);
-		return -ENOMEM;
-	}
-
-	for (i = nip = 0; i < nif; i++) {
-		if (!strcmp(ifnames[i], "lo"))
-			continue;
-
-		rc = lnet_ipif_query(ifnames[i], &up, &ipaddrs[nip], &netmask);
-		if (rc != 0) {
-			CWARN("Can't query interface %s: %d\n",
-			      ifnames[i], rc);
-			continue;
-		}
-
-		if (!up) {
-			CWARN("Ignoring interface %s: it's down\n",
-			      ifnames[i]);
-			continue;
-		}
-
-		nip++;
-	}
-
-	lnet_ipif_free_enumeration(ifnames, nif);
-
-	if (nip == nif) {
-		*ipaddrsp = ipaddrs;
-	} else {
-		if (nip > 0) {
-			LIBCFS_ALLOC(ipaddrs2, nip * sizeof(*ipaddrs2));
-			if (ipaddrs2 == NULL) {
-				CERROR("Can't allocate ipaddrs[%d]\n", nip);
-				nip = -ENOMEM;
-			} else {
-				memcpy(ipaddrs2, ipaddrs,
-				       nip * sizeof(*ipaddrs));
-				*ipaddrsp = ipaddrs2;
-				rc = nip;
-			}
-		}
-		lnet_ipaddr_free_enumeration(ipaddrs, nif);
-	}
-	return nip;
-}
-
-int
-lnet_parse_ip2nets(char **networksp, char *ip2nets)
-{
-	__u32 *ipaddrs = NULL;
-	int nip = lnet_ipaddr_enumerate(&ipaddrs);
-	int rc;
-
-	if (nip < 0) {
-		LCONSOLE_ERROR_MSG(0x117,
-				   "Error %d enumerating local IP interfaces for ip2nets to match\n",
-				   nip);
-		return nip;
-	}
-
-	if (nip == 0) {
-		LCONSOLE_ERROR_MSG(0x118,
-				   "No local IP interfaces for ip2nets to match\n");
-		return -ENOENT;
-	}
-
-	rc = lnet_match_networks(networksp, ip2nets, ipaddrs, nip);
-	lnet_ipaddr_free_enumeration(ipaddrs, nip);
-
-	if (rc < 0) {
-		LCONSOLE_ERROR_MSG(0x119, "Error %d parsing ip2nets\n", rc);
-		return rc;
-	}
-
-	if (rc == 0) {
-		LCONSOLE_ERROR_MSG(0x11a,
-				   "ip2nets does not match any local IP interfaces\n");
-		return -ENOENT;
-	}
-
-	return 0;
-}
diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c
deleted file mode 100644
index f19ce9ae6a9a..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lib-eq.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/lnet/lib-eq.c
- *
- * Library level Event queue management routines
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include "../../include/linux/lnet/lib-lnet.h"
-
-/**
- * Create an event queue that has room for \a count number of events.
- *
- * The event queue is circular and older events will be overwritten by new
- * ones if they are not removed in time by the user using the functions
- * LNetEQGet(), LNetEQWait(), or LNetEQPoll(). It is up to the user to
- * determine the appropriate size of the event queue to prevent this loss
- * of events. Note that when EQ handler is specified in \a callback, no
- * event loss can happen, since the handler is run for each event deposited
- * into the EQ.
- *
- * \param count The number of events to be stored in the event queue. It
- * will be rounded up to the next power of two.
- * \param callback A handler function that runs when an event is deposited
- * into the EQ. The constant value LNET_EQ_HANDLER_NONE can be used to
- * indicate that no event handler is desired.
- * \param handle On successful return, this location will hold a handle for
- * the newly created EQ.
- *
- * \retval 0       On success.
- * \retval -EINVAL If an parameter is not valid.
- * \retval -ENOMEM If memory for the EQ can't be allocated.
- *
- * \see lnet_eq_handler_t for the discussion on EQ handler semantics.
- */
-int
-LNetEQAlloc(unsigned int count, lnet_eq_handler_t callback,
-	    lnet_handle_eq_t *handle)
-{
-	lnet_eq_t *eq;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	/* We need count to be a power of 2 so that when eq_{enq,deq}_seq
-	 * overflow, they don't skip entries, so the queue has the same
-	 * apparent capacity at all times */
-
-	count = roundup_pow_of_two(count);
-
-	if (callback != LNET_EQ_HANDLER_NONE && count != 0)
-		CWARN("EQ callback is guaranteed to get every event, do you still want to set eqcount %d for polling event which will have locking overhead? Please contact with developer to confirm\n", count);
-
-	/* count can be 0 if only need callback, we can eliminate
-	 * overhead of enqueue event */
-	if (count == 0 && callback == LNET_EQ_HANDLER_NONE)
-		return -EINVAL;
-
-	eq = lnet_eq_alloc();
-	if (eq == NULL)
-		return -ENOMEM;
-
-	if (count != 0) {
-		LIBCFS_ALLOC(eq->eq_events, count * sizeof(lnet_event_t));
-		if (eq->eq_events == NULL)
-			goto failed;
-		/* NB allocator has set all event sequence numbers to 0,
-		 * so all them should be earlier than eq_deq_seq */
-	}
-
-	eq->eq_deq_seq = 1;
-	eq->eq_enq_seq = 1;
-	eq->eq_size = count;
-	eq->eq_callback = callback;
-
-	eq->eq_refs = cfs_percpt_alloc(lnet_cpt_table(),
-				       sizeof(*eq->eq_refs[0]));
-	if (eq->eq_refs == NULL)
-		goto failed;
-
-	/* MUST hold both exclusive lnet_res_lock */
-	lnet_res_lock(LNET_LOCK_EX);
-	/* NB: hold lnet_eq_wait_lock for EQ link/unlink, so we can do
-	 * both EQ lookup and poll event with only lnet_eq_wait_lock */
-	lnet_eq_wait_lock();
-
-	lnet_res_lh_initialize(&the_lnet.ln_eq_container, &eq->eq_lh);
-	list_add(&eq->eq_list, &the_lnet.ln_eq_container.rec_active);
-
-	lnet_eq_wait_unlock();
-	lnet_res_unlock(LNET_LOCK_EX);
-
-	lnet_eq2handle(handle, eq);
-	return 0;
-
-failed:
-	if (eq->eq_events != NULL)
-		LIBCFS_FREE(eq->eq_events, count * sizeof(lnet_event_t));
-
-	if (eq->eq_refs != NULL)
-		cfs_percpt_free(eq->eq_refs);
-
-	lnet_eq_free(eq);
-	return -ENOMEM;
-}
-EXPORT_SYMBOL(LNetEQAlloc);
-
-/**
- * Release the resources associated with an event queue if it's idle;
- * otherwise do nothing and it's up to the user to try again.
- *
- * \param eqh A handle for the event queue to be released.
- *
- * \retval 0 If the EQ is not in use and freed.
- * \retval -ENOENT If \a eqh does not point to a valid EQ.
- * \retval -EBUSY  If the EQ is still in use by some MDs.
- */
-int
-LNetEQFree(lnet_handle_eq_t eqh)
-{
-	struct lnet_eq *eq;
-	lnet_event_t *events = NULL;
-	int **refs = NULL;
-	int *ref;
-	int rc = 0;
-	int size = 0;
-	int i;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	lnet_res_lock(LNET_LOCK_EX);
-	/* NB: hold lnet_eq_wait_lock for EQ link/unlink, so we can do
-	 * both EQ lookup and poll event with only lnet_eq_wait_lock */
-	lnet_eq_wait_lock();
-
-	eq = lnet_handle2eq(&eqh);
-	if (eq == NULL) {
-		rc = -ENOENT;
-		goto out;
-	}
-
-	cfs_percpt_for_each(ref, i, eq->eq_refs) {
-		LASSERT(*ref >= 0);
-		if (*ref == 0)
-			continue;
-
-		CDEBUG(D_NET, "Event equeue (%d: %d) busy on destroy.\n",
-		       i, *ref);
-		rc = -EBUSY;
-		goto out;
-	}
-
-	/* stash for free after lock dropped */
-	events = eq->eq_events;
-	size = eq->eq_size;
-	refs = eq->eq_refs;
-
-	lnet_res_lh_invalidate(&eq->eq_lh);
-	list_del(&eq->eq_list);
-	lnet_eq_free(eq);
- out:
-	lnet_eq_wait_unlock();
-	lnet_res_unlock(LNET_LOCK_EX);
-
-	if (events != NULL)
-		LIBCFS_FREE(events, size * sizeof(lnet_event_t));
-	if (refs != NULL)
-		cfs_percpt_free(refs);
-
-	return rc;
-}
-EXPORT_SYMBOL(LNetEQFree);
-
-void
-lnet_eq_enqueue_event(lnet_eq_t *eq, lnet_event_t *ev)
-{
-	/* MUST called with resource lock hold but w/o lnet_eq_wait_lock */
-	int index;
-
-	if (eq->eq_size == 0) {
-		LASSERT(eq->eq_callback != LNET_EQ_HANDLER_NONE);
-		eq->eq_callback(ev);
-		return;
-	}
-
-	lnet_eq_wait_lock();
-	ev->sequence = eq->eq_enq_seq++;
-
-	LASSERT(eq->eq_size == LOWEST_BIT_SET(eq->eq_size));
-	index = ev->sequence & (eq->eq_size - 1);
-
-	eq->eq_events[index] = *ev;
-
-	if (eq->eq_callback != LNET_EQ_HANDLER_NONE)
-		eq->eq_callback(ev);
-
-	/* Wake anyone waiting in LNetEQPoll() */
-	if (waitqueue_active(&the_lnet.ln_eq_waitq))
-		wake_up_all(&the_lnet.ln_eq_waitq);
-	lnet_eq_wait_unlock();
-}
-
-static int
-lnet_eq_dequeue_event(lnet_eq_t *eq, lnet_event_t *ev)
-{
-	int new_index = eq->eq_deq_seq & (eq->eq_size - 1);
-	lnet_event_t *new_event = &eq->eq_events[new_index];
-	int rc;
-
-	/* must called with lnet_eq_wait_lock hold */
-	if (LNET_SEQ_GT(eq->eq_deq_seq, new_event->sequence))
-		return 0;
-
-	/* We've got a new event... */
-	*ev = *new_event;
-
-	CDEBUG(D_INFO, "event: %p, sequence: %lu, eq->size: %u\n",
-	       new_event, eq->eq_deq_seq, eq->eq_size);
-
-	/* ...but did it overwrite an event we've not seen yet? */
-	if (eq->eq_deq_seq == new_event->sequence) {
-		rc = 1;
-	} else {
-		/* don't complain with CERROR: some EQs are sized small
-		 * anyway; if it's important, the caller should complain */
-		CDEBUG(D_NET, "Event Queue Overflow: eq seq %lu ev seq %lu\n",
-		       eq->eq_deq_seq, new_event->sequence);
-		rc = -EOVERFLOW;
-	}
-
-	eq->eq_deq_seq = new_event->sequence + 1;
-	return rc;
-}
-
-/**
- * A nonblocking function that can be used to get the next event in an EQ.
- * If an event handler is associated with the EQ, the handler will run before
- * this function returns successfully. The event is removed from the queue.
- *
- * \param eventq A handle for the event queue.
- * \param event On successful return (1 or -EOVERFLOW), this location will
- * hold the next event in the EQ.
- *
- * \retval 0	  No pending event in the EQ.
- * \retval 1	  Indicates success.
- * \retval -ENOENT    If \a eventq does not point to a valid EQ.
- * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that
- * at least one event between this event and the last event obtained from the
- * EQ has been dropped due to limited space in the EQ.
- */
-int
-LNetEQGet(lnet_handle_eq_t eventq, lnet_event_t *event)
-{
-	int which;
-
-	return LNetEQPoll(&eventq, 1, 0,
-			 event, &which);
-}
-EXPORT_SYMBOL(LNetEQGet);
-
-/**
- * Block the calling process until there is an event in the EQ.
- * If an event handler is associated with the EQ, the handler will run before
- * this function returns successfully. This function returns the next event
- * in the EQ and removes it from the EQ.
- *
- * \param eventq A handle for the event queue.
- * \param event On successful return (1 or -EOVERFLOW), this location will
- * hold the next event in the EQ.
- *
- * \retval 1	  Indicates success.
- * \retval -ENOENT    If \a eventq does not point to a valid EQ.
- * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that
- * at least one event between this event and the last event obtained from the
- * EQ has been dropped due to limited space in the EQ.
- */
-int
-LNetEQWait(lnet_handle_eq_t eventq, lnet_event_t *event)
-{
-	int which;
-
-	return LNetEQPoll(&eventq, 1, LNET_TIME_FOREVER,
-			 event, &which);
-}
-EXPORT_SYMBOL(LNetEQWait);
-
-
-static int
-lnet_eq_wait_locked(int *timeout_ms)
-__must_hold(&the_lnet.ln_eq_wait_lock)
-{
-	int tms = *timeout_ms;
-	int wait;
-	wait_queue_t wl;
-	unsigned long now;
-
-	if (tms == 0)
-		return -1; /* don't want to wait and no new event */
-
-	init_waitqueue_entry(&wl, current);
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&the_lnet.ln_eq_waitq, &wl);
-
-	lnet_eq_wait_unlock();
-
-	if (tms < 0) {
-		schedule();
-
-	} else {
-		struct timeval tv;
-
-		now = cfs_time_current();
-		schedule_timeout(cfs_time_seconds(tms) / 1000);
-		cfs_duration_usec(cfs_time_sub(cfs_time_current(), now), &tv);
-		tms -= (int)(tv.tv_sec * 1000 + tv.tv_usec / 1000);
-		if (tms < 0) /* no more wait but may have new event */
-			tms = 0;
-	}
-
-	wait = tms != 0; /* might need to call here again */
-	*timeout_ms = tms;
-
-	lnet_eq_wait_lock();
-	remove_wait_queue(&the_lnet.ln_eq_waitq, &wl);
-
-	return wait;
-}
-
-
-
-/**
- * Block the calling process until there's an event from a set of EQs or
- * timeout happens.
- *
- * If an event handler is associated with the EQ, the handler will run before
- * this function returns successfully, in which case the corresponding event
- * is consumed.
- *
- * LNetEQPoll() provides a timeout to allow applications to poll, block for a
- * fixed period, or block indefinitely.
- *
- * \param eventqs,neq An array of EQ handles, and size of the array.
- * \param timeout_ms Time in milliseconds to wait for an event to occur on
- * one of the EQs. The constant LNET_TIME_FOREVER can be used to indicate an
- * infinite timeout.
- * \param event,which On successful return (1 or -EOVERFLOW), \a event will
- * hold the next event in the EQs, and \a which will contain the index of the
- * EQ from which the event was taken.
- *
- * \retval 0	  No pending event in the EQs after timeout.
- * \retval 1	  Indicates success.
- * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that
- * at least one event between this event and the last event obtained from the
- * EQ indicated by \a which has been dropped due to limited space in the EQ.
- * \retval -ENOENT    If there's an invalid handle in \a eventqs.
- */
-int
-LNetEQPoll(lnet_handle_eq_t *eventqs, int neq, int timeout_ms,
-	   lnet_event_t *event, int *which)
-{
-	int wait = 1;
-	int rc;
-	int i;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if (neq < 1)
-		return -ENOENT;
-
-	lnet_eq_wait_lock();
-
-	for (;;) {
-		for (i = 0; i < neq; i++) {
-			lnet_eq_t *eq = lnet_handle2eq(&eventqs[i]);
-
-			if (eq == NULL) {
-				lnet_eq_wait_unlock();
-				return -ENOENT;
-			}
-
-			rc = lnet_eq_dequeue_event(eq, event);
-			if (rc != 0) {
-				lnet_eq_wait_unlock();
-				*which = i;
-				return rc;
-			}
-		}
-
-		if (wait == 0)
-			break;
-
-		/*
-		 * return value of lnet_eq_wait_locked:
-		 * -1 : did nothing and it's sure no new event
-		 *  1 : sleep inside and wait until new event
-		 *  0 : don't want to wait anymore, but might have new event
-		 *      so need to call dequeue again
-		 */
-		wait = lnet_eq_wait_locked(&timeout_ms);
-		if (wait < 0) /* no new event */
-			break;
-	}
-
-	lnet_eq_wait_unlock();
-	return 0;
-}
diff --git a/drivers/staging/lustre/lnet/lnet/lib-md.c b/drivers/staging/lustre/lnet/lnet/lib-md.c
deleted file mode 100644
index 758f5bedef7e..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lib-md.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/lnet/lib-md.c
- *
- * Memory Descriptor management routines
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/lnet/lib-lnet.h"
-
-/* must be called with lnet_res_lock held */
-void
-lnet_md_unlink(lnet_libmd_t *md)
-{
-	if ((md->md_flags & LNET_MD_FLAG_ZOMBIE) == 0) {
-		/* first unlink attempt... */
-		lnet_me_t *me = md->md_me;
-
-		md->md_flags |= LNET_MD_FLAG_ZOMBIE;
-
-		/* Disassociate from ME (if any),
-		 * and unlink it if it was created
-		 * with LNET_UNLINK */
-		if (me != NULL) {
-			/* detach MD from portal */
-			lnet_ptl_detach_md(me, md);
-			if (me->me_unlink == LNET_UNLINK)
-				lnet_me_unlink(me);
-		}
-
-		/* ensure all future handle lookups fail */
-		lnet_res_lh_invalidate(&md->md_lh);
-	}
-
-	if (md->md_refcount != 0) {
-		CDEBUG(D_NET, "Queueing unlink of md %p\n", md);
-		return;
-	}
-
-	CDEBUG(D_NET, "Unlinking md %p\n", md);
-
-	if (md->md_eq != NULL) {
-		int cpt = lnet_cpt_of_cookie(md->md_lh.lh_cookie);
-
-		LASSERT(*md->md_eq->eq_refs[cpt] > 0);
-		(*md->md_eq->eq_refs[cpt])--;
-	}
-
-	LASSERT(!list_empty(&md->md_list));
-	list_del_init(&md->md_list);
-	lnet_md_free(md);
-}
-
-static int
-lnet_md_build(lnet_libmd_t *lmd, lnet_md_t *umd, int unlink)
-{
-	int i;
-	unsigned int niov;
-	int total_length = 0;
-
-	lmd->md_me = NULL;
-	lmd->md_start = umd->start;
-	lmd->md_offset = 0;
-	lmd->md_max_size = umd->max_size;
-	lmd->md_options = umd->options;
-	lmd->md_user_ptr = umd->user_ptr;
-	lmd->md_eq = NULL;
-	lmd->md_threshold = umd->threshold;
-	lmd->md_refcount = 0;
-	lmd->md_flags = (unlink == LNET_UNLINK) ? LNET_MD_FLAG_AUTO_UNLINK : 0;
-
-	if ((umd->options & LNET_MD_IOVEC) != 0) {
-
-		if ((umd->options & LNET_MD_KIOV) != 0) /* Can't specify both */
-			return -EINVAL;
-
-		lmd->md_niov = niov = umd->length;
-		memcpy(lmd->md_iov.iov, umd->start,
-		       niov * sizeof(lmd->md_iov.iov[0]));
-
-		for (i = 0; i < (int)niov; i++) {
-			/* We take the base address on trust */
-			/* invalid length */
-			if (lmd->md_iov.iov[i].iov_len <= 0)
-				return -EINVAL;
-
-			total_length += lmd->md_iov.iov[i].iov_len;
-		}
-
-		lmd->md_length = total_length;
-
-		if ((umd->options & LNET_MD_MAX_SIZE) != 0 && /* use max size */
-		    (umd->max_size < 0 ||
-		     umd->max_size > total_length)) /* illegal max_size */
-			return -EINVAL;
-
-	} else if ((umd->options & LNET_MD_KIOV) != 0) {
-		lmd->md_niov = niov = umd->length;
-		memcpy(lmd->md_iov.kiov, umd->start,
-		       niov * sizeof(lmd->md_iov.kiov[0]));
-
-		for (i = 0; i < (int)niov; i++) {
-			/* We take the page pointer on trust */
-			if (lmd->md_iov.kiov[i].kiov_offset +
-			    lmd->md_iov.kiov[i].kiov_len > PAGE_CACHE_SIZE)
-				return -EINVAL; /* invalid length */
-
-			total_length += lmd->md_iov.kiov[i].kiov_len;
-		}
-
-		lmd->md_length = total_length;
-
-		if ((umd->options & LNET_MD_MAX_SIZE) != 0 && /* max size used */
-		    (umd->max_size < 0 ||
-		     umd->max_size > total_length)) /* illegal max_size */
-			return -EINVAL;
-	} else {   /* contiguous */
-		lmd->md_length = umd->length;
-		lmd->md_niov = niov = 1;
-		lmd->md_iov.iov[0].iov_base = umd->start;
-		lmd->md_iov.iov[0].iov_len = umd->length;
-
-		if ((umd->options & LNET_MD_MAX_SIZE) != 0 && /* max size used */
-		    (umd->max_size < 0 ||
-		     umd->max_size > (int)umd->length)) /* illegal max_size */
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
-/* must be called with resource lock held */
-static int
-lnet_md_link(lnet_libmd_t *md, lnet_handle_eq_t eq_handle, int cpt)
-{
-	struct lnet_res_container *container = the_lnet.ln_md_containers[cpt];
-
-	/* NB we are passed an allocated, but inactive md.
-	 * if we return success, caller may lnet_md_unlink() it.
-	 * otherwise caller may only lnet_md_free() it.
-	 */
-	/* This implementation doesn't know how to create START events or
-	 * disable END events.  Best to LASSERT our caller is compliant so
-	 * we find out quickly...  */
-	/*  TODO - reevaluate what should be here in light of
-	 * the removal of the start and end events
-	 * maybe there we shouldn't even allow LNET_EQ_NONE!)
-	 * LASSERT (eq == NULL);
-	 */
-	if (!LNetHandleIsInvalid(eq_handle)) {
-		md->md_eq = lnet_handle2eq(&eq_handle);
-
-		if (md->md_eq == NULL)
-			return -ENOENT;
-
-		(*md->md_eq->eq_refs[cpt])++;
-	}
-
-	lnet_res_lh_initialize(container, &md->md_lh);
-
-	LASSERT(list_empty(&md->md_list));
-	list_add(&md->md_list, &container->rec_active);
-
-	return 0;
-}
-
-/* must be called with lnet_res_lock held */
-void
-lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd)
-{
-	/* NB this doesn't copy out all the iov entries so when a
-	 * discontiguous MD is copied out, the target gets to know the
-	 * original iov pointer (in start) and the number of entries it had
-	 * and that's all.
-	 */
-	umd->start = lmd->md_start;
-	umd->length = ((lmd->md_options &
-			(LNET_MD_IOVEC | LNET_MD_KIOV)) == 0) ?
-		      lmd->md_length : lmd->md_niov;
-	umd->threshold = lmd->md_threshold;
-	umd->max_size = lmd->md_max_size;
-	umd->options = lmd->md_options;
-	umd->user_ptr = lmd->md_user_ptr;
-	lnet_eq2handle(&umd->eq_handle, lmd->md_eq);
-}
-
-static int
-lnet_md_validate(lnet_md_t *umd)
-{
-	if (umd->start == NULL && umd->length != 0) {
-		CERROR("MD start pointer can not be NULL with length %u\n",
-		       umd->length);
-		return -EINVAL;
-	}
-
-	if ((umd->options & (LNET_MD_KIOV | LNET_MD_IOVEC)) != 0 &&
-	    umd->length > LNET_MAX_IOV) {
-		CERROR("Invalid option: too many fragments %u, %d max\n",
-		       umd->length, LNET_MAX_IOV);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/**
- * Create a memory descriptor and attach it to a ME
- *
- * \param meh A handle for a ME to associate the new MD with.
- * \param umd Provides initial values for the user-visible parts of a MD.
- * Other than its use for initialization, there is no linkage between this
- * structure and the MD maintained by the LNet.
- * \param unlink A flag to indicate whether the MD is automatically unlinked
- * when it becomes inactive, either because the operation threshold drops to
- * zero or because the available memory becomes less than \a umd.max_size.
- * (Note that the check for unlinking a MD only occurs after the completion
- * of a successful operation on the MD.) The value LNET_UNLINK enables auto
- * unlinking; the value LNET_RETAIN disables it.
- * \param handle On successful returns, a handle to the newly created MD is
- * saved here. This handle can be used later in LNetMDUnlink().
- *
- * \retval 0       On success.
- * \retval -EINVAL If \a umd is not valid.
- * \retval -ENOMEM If new MD cannot be allocated.
- * \retval -ENOENT Either \a meh or \a umd.eq_handle does not point to a
- * valid object. Note that it's OK to supply a NULL \a umd.eq_handle by
- * calling LNetInvalidateHandle() on it.
- * \retval -EBUSY  If the ME pointed to by \a meh is already associated with
- * a MD.
- */
-int
-LNetMDAttach(lnet_handle_me_t meh, lnet_md_t umd,
-	     lnet_unlink_t unlink, lnet_handle_md_t *handle)
-{
-	LIST_HEAD(matches);
-	LIST_HEAD(drops);
-	struct lnet_me *me;
-	struct lnet_libmd *md;
-	int cpt;
-	int rc;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if (lnet_md_validate(&umd) != 0)
-		return -EINVAL;
-
-	if ((umd.options & (LNET_MD_OP_GET | LNET_MD_OP_PUT)) == 0) {
-		CERROR("Invalid option: no MD_OP set\n");
-		return -EINVAL;
-	}
-
-	md = lnet_md_alloc(&umd);
-	if (md == NULL)
-		return -ENOMEM;
-
-	rc = lnet_md_build(md, &umd, unlink);
-	cpt = lnet_cpt_of_cookie(meh.cookie);
-
-	lnet_res_lock(cpt);
-	if (rc != 0)
-		goto failed;
-
-	me = lnet_handle2me(&meh);
-	if (me == NULL)
-		rc = -ENOENT;
-	else if (me->me_md != NULL)
-		rc = -EBUSY;
-	else
-		rc = lnet_md_link(md, umd.eq_handle, cpt);
-
-	if (rc != 0)
-		goto failed;
-
-	/* attach this MD to portal of ME and check if it matches any
-	 * blocked msgs on this portal */
-	lnet_ptl_attach_md(me, md, &matches, &drops);
-
-	lnet_md2handle(handle, md);
-
-	lnet_res_unlock(cpt);
-
-	lnet_drop_delayed_msg_list(&drops, "Bad match");
-	lnet_recv_delayed_msg_list(&matches);
-
-	return 0;
-
- failed:
-	lnet_md_free(md);
-
-	lnet_res_unlock(cpt);
-	return rc;
-}
-EXPORT_SYMBOL(LNetMDAttach);
-
-/**
- * Create a "free floating" memory descriptor - a MD that is not associated
- * with a ME. Such MDs are usually used in LNetPut() and LNetGet() operations.
- *
- * \param umd,unlink See the discussion for LNetMDAttach().
- * \param handle On successful returns, a handle to the newly created MD is
- * saved here. This handle can be used later in LNetMDUnlink(), LNetPut(),
- * and LNetGet() operations.
- *
- * \retval 0       On success.
- * \retval -EINVAL If \a umd is not valid.
- * \retval -ENOMEM If new MD cannot be allocated.
- * \retval -ENOENT \a umd.eq_handle does not point to a valid EQ. Note that
- * it's OK to supply a NULL \a umd.eq_handle by calling
- * LNetInvalidateHandle() on it.
- */
-int
-LNetMDBind(lnet_md_t umd, lnet_unlink_t unlink, lnet_handle_md_t *handle)
-{
-	lnet_libmd_t *md;
-	int cpt;
-	int rc;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if (lnet_md_validate(&umd) != 0)
-		return -EINVAL;
-
-	if ((umd.options & (LNET_MD_OP_GET | LNET_MD_OP_PUT)) != 0) {
-		CERROR("Invalid option: GET|PUT illegal on active MDs\n");
-		return -EINVAL;
-	}
-
-	md = lnet_md_alloc(&umd);
-	if (md == NULL)
-		return -ENOMEM;
-
-	rc = lnet_md_build(md, &umd, unlink);
-
-	cpt = lnet_res_lock_current();
-	if (rc != 0)
-		goto failed;
-
-	rc = lnet_md_link(md, umd.eq_handle, cpt);
-	if (rc != 0)
-		goto failed;
-
-	lnet_md2handle(handle, md);
-
-	lnet_res_unlock(cpt);
-	return 0;
-
- failed:
-	lnet_md_free(md);
-
-	lnet_res_unlock(cpt);
-	return rc;
-}
-EXPORT_SYMBOL(LNetMDBind);
-
-/**
- * Unlink the memory descriptor from any ME it may be linked to and release
- * the internal resources associated with it. As a result, active messages
- * associated with the MD may get aborted.
- *
- * This function does not free the memory region associated with the MD;
- * i.e., the memory the user allocated for this MD. If the ME associated with
- * this MD is not NULL and was created with auto unlink enabled, the ME is
- * unlinked as well (see LNetMEAttach()).
- *
- * Explicitly unlinking a MD via this function call has the same behavior as
- * a MD that has been automatically unlinked, except that no LNET_EVENT_UNLINK
- * is generated in the latter case.
- *
- * An unlinked event can be reported in two ways:
- * - If there's no pending operations on the MD, it's unlinked immediately
- *   and an LNET_EVENT_UNLINK event is logged before this function returns.
- * - Otherwise, the MD is only marked for deletion when this function
- *   returns, and the unlinked event will be piggybacked on the event of
- *   the completion of the last operation by setting the unlinked field of
- *   the event. No dedicated LNET_EVENT_UNLINK event is generated.
- *
- * Note that in both cases the unlinked field of the event is always set; no
- * more event will happen on the MD after such an event is logged.
- *
- * \param mdh A handle for the MD to be unlinked.
- *
- * \retval 0       On success.
- * \retval -ENOENT If \a mdh does not point to a valid MD object.
- */
-int
-LNetMDUnlink(lnet_handle_md_t mdh)
-{
-	lnet_event_t ev;
-	lnet_libmd_t *md;
-	int cpt;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	cpt = lnet_cpt_of_cookie(mdh.cookie);
-	lnet_res_lock(cpt);
-
-	md = lnet_handle2md(&mdh);
-	if (md == NULL) {
-		lnet_res_unlock(cpt);
-		return -ENOENT;
-	}
-
-	md->md_flags |= LNET_MD_FLAG_ABORTED;
-	/* If the MD is busy, lnet_md_unlink just marks it for deletion, and
-	 * when the LND is done, the completion event flags that the MD was
-	 * unlinked.  Otherwise, we enqueue an event now... */
-	if (md->md_eq != NULL && md->md_refcount == 0) {
-		lnet_build_unlink_event(md, &ev);
-		lnet_eq_enqueue_event(md->md_eq, &ev);
-	}
-
-	lnet_md_unlink(md);
-
-	lnet_res_unlock(cpt);
-	return 0;
-}
-EXPORT_SYMBOL(LNetMDUnlink);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-me.c b/drivers/staging/lustre/lnet/lnet/lib-me.c
deleted file mode 100644
index 42fc99ef9f80..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lib-me.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/lnet/lib-me.c
- *
- * Match Entry management routines
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/lnet/lib-lnet.h"
-
-/**
- * Create and attach a match entry to the match list of \a portal. The new
- * ME is empty, i.e. not associated with a memory descriptor. LNetMDAttach()
- * can be used to attach a MD to an empty ME.
- *
- * \param portal The portal table index where the ME should be attached.
- * \param match_id Specifies the match criteria for the process ID of
- * the requester. The constants LNET_PID_ANY and LNET_NID_ANY can be
- * used to wildcard either of the identifiers in the lnet_process_id_t
- * structure.
- * \param match_bits,ignore_bits Specify the match criteria to apply
- * to the match bits in the incoming request. The ignore bits are used
- * to mask out insignificant bits in the incoming match bits. The resulting
- * bits are then compared to the ME's match bits to determine if the
- * incoming request meets the match criteria.
- * \param unlink Indicates whether the ME should be unlinked when the memory
- * descriptor associated with it is unlinked (Note that the check for
- * unlinking a ME only occurs when the memory descriptor is unlinked.).
- * Valid values are LNET_RETAIN and LNET_UNLINK.
- * \param pos Indicates whether the new ME should be prepended or
- * appended to the match list. Allowed constants: LNET_INS_BEFORE,
- * LNET_INS_AFTER.
- * \param handle On successful returns, a handle to the newly created ME
- * object is saved here. This handle can be used later in LNetMEInsert(),
- * LNetMEUnlink(), or LNetMDAttach() functions.
- *
- * \retval 0       On success.
- * \retval -EINVAL If \a portal is invalid.
- * \retval -ENOMEM If new ME object cannot be allocated.
- */
-int
-LNetMEAttach(unsigned int portal,
-	     lnet_process_id_t match_id,
-	     __u64 match_bits, __u64 ignore_bits,
-	     lnet_unlink_t unlink, lnet_ins_pos_t pos,
-	     lnet_handle_me_t *handle)
-{
-	struct lnet_match_table *mtable;
-	struct lnet_me *me;
-	struct list_head *head;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if ((int)portal >= the_lnet.ln_nportals)
-		return -EINVAL;
-
-	mtable = lnet_mt_of_attach(portal, match_id,
-				   match_bits, ignore_bits, pos);
-	if (mtable == NULL) /* can't match portal type */
-		return -EPERM;
-
-	me = lnet_me_alloc();
-	if (me == NULL)
-		return -ENOMEM;
-
-	lnet_res_lock(mtable->mt_cpt);
-
-	me->me_portal = portal;
-	me->me_match_id = match_id;
-	me->me_match_bits = match_bits;
-	me->me_ignore_bits = ignore_bits;
-	me->me_unlink = unlink;
-	me->me_md = NULL;
-
-	lnet_res_lh_initialize(the_lnet.ln_me_containers[mtable->mt_cpt],
-			       &me->me_lh);
-	if (ignore_bits != 0)
-		head = &mtable->mt_mhash[LNET_MT_HASH_IGNORE];
-	else
-		head = lnet_mt_match_head(mtable, match_id, match_bits);
-
-	me->me_pos = head - &mtable->mt_mhash[0];
-	if (pos == LNET_INS_AFTER || pos == LNET_INS_LOCAL)
-		list_add_tail(&me->me_list, head);
-	else
-		list_add(&me->me_list, head);
-
-	lnet_me2handle(handle, me);
-
-	lnet_res_unlock(mtable->mt_cpt);
-	return 0;
-}
-EXPORT_SYMBOL(LNetMEAttach);
-
-/**
- * Create and a match entry and insert it before or after the ME pointed to by
- * \a current_meh. The new ME is empty, i.e. not associated with a memory
- * descriptor. LNetMDAttach() can be used to attach a MD to an empty ME.
- *
- * This function is identical to LNetMEAttach() except for the position
- * where the new ME is inserted.
- *
- * \param current_meh A handle for a ME. The new ME will be inserted
- * immediately before or immediately after this ME.
- * \param match_id,match_bits,ignore_bits,unlink,pos,handle See the discussion
- * for LNetMEAttach().
- *
- * \retval 0       On success.
- * \retval -ENOMEM If new ME object cannot be allocated.
- * \retval -ENOENT If \a current_meh does not point to a valid match entry.
- */
-int
-LNetMEInsert(lnet_handle_me_t current_meh,
-	     lnet_process_id_t match_id,
-	     __u64 match_bits, __u64 ignore_bits,
-	     lnet_unlink_t unlink, lnet_ins_pos_t pos,
-	     lnet_handle_me_t *handle)
-{
-	struct lnet_me *current_me;
-	struct lnet_me *new_me;
-	struct lnet_portal *ptl;
-	int cpt;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if (pos == LNET_INS_LOCAL)
-		return -EPERM;
-
-	new_me = lnet_me_alloc();
-	if (new_me == NULL)
-		return -ENOMEM;
-
-	cpt = lnet_cpt_of_cookie(current_meh.cookie);
-
-	lnet_res_lock(cpt);
-
-	current_me = lnet_handle2me(&current_meh);
-	if (current_me == NULL) {
-		lnet_me_free(new_me);
-
-		lnet_res_unlock(cpt);
-		return -ENOENT;
-	}
-
-	LASSERT(current_me->me_portal < the_lnet.ln_nportals);
-
-	ptl = the_lnet.ln_portals[current_me->me_portal];
-	if (lnet_ptl_is_unique(ptl)) {
-		/* nosense to insertion on unique portal */
-		lnet_me_free(new_me);
-		lnet_res_unlock(cpt);
-		return -EPERM;
-	}
-
-	new_me->me_pos = current_me->me_pos;
-	new_me->me_portal = current_me->me_portal;
-	new_me->me_match_id = match_id;
-	new_me->me_match_bits = match_bits;
-	new_me->me_ignore_bits = ignore_bits;
-	new_me->me_unlink = unlink;
-	new_me->me_md = NULL;
-
-	lnet_res_lh_initialize(the_lnet.ln_me_containers[cpt], &new_me->me_lh);
-
-	if (pos == LNET_INS_AFTER)
-		list_add(&new_me->me_list, &current_me->me_list);
-	else
-		list_add_tail(&new_me->me_list, &current_me->me_list);
-
-	lnet_me2handle(handle, new_me);
-
-	lnet_res_unlock(cpt);
-
-	return 0;
-}
-EXPORT_SYMBOL(LNetMEInsert);
-
-/**
- * Unlink a match entry from its match list.
- *
- * This operation also releases any resources associated with the ME. If a
- * memory descriptor is attached to the ME, then it will be unlinked as well
- * and an unlink event will be generated. It is an error to use the ME handle
- * after calling LNetMEUnlink().
- *
- * \param meh A handle for the ME to be unlinked.
- *
- * \retval 0       On success.
- * \retval -ENOENT If \a meh does not point to a valid ME.
- * \see LNetMDUnlink() for the discussion on delivering unlink event.
- */
-int
-LNetMEUnlink(lnet_handle_me_t meh)
-{
-	lnet_me_t *me;
-	lnet_libmd_t *md;
-	lnet_event_t ev;
-	int cpt;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	cpt = lnet_cpt_of_cookie(meh.cookie);
-	lnet_res_lock(cpt);
-
-	me = lnet_handle2me(&meh);
-	if (me == NULL) {
-		lnet_res_unlock(cpt);
-		return -ENOENT;
-	}
-
-	md = me->me_md;
-	if (md != NULL) {
-		md->md_flags |= LNET_MD_FLAG_ABORTED;
-		if (md->md_eq != NULL && md->md_refcount == 0) {
-			lnet_build_unlink_event(md, &ev);
-			lnet_eq_enqueue_event(md->md_eq, &ev);
-		}
-	}
-
-	lnet_me_unlink(me);
-
-	lnet_res_unlock(cpt);
-	return 0;
-}
-EXPORT_SYMBOL(LNetMEUnlink);
-
-/* call with lnet_res_lock please */
-void
-lnet_me_unlink(lnet_me_t *me)
-{
-	list_del(&me->me_list);
-
-	if (me->me_md != NULL) {
-		lnet_libmd_t *md = me->me_md;
-
-		/* detach MD from portal of this ME */
-		lnet_ptl_detach_md(me, md);
-		lnet_md_unlink(md);
-	}
-
-	lnet_res_lh_invalidate(&me->me_lh);
-	lnet_me_free(me);
-}
-
-#if 0
-static void
-lib_me_dump(lnet_me_t *me)
-{
-	CWARN("Match Entry %p (%#llx)\n", me,
-	      me->me_lh.lh_cookie);
-
-	CWARN("\tMatch/Ignore\t= %016lx / %016lx\n",
-	      me->me_match_bits, me->me_ignore_bits);
-
-	CWARN("\tMD\t= %p\n", me->md);
-	CWARN("\tprev\t= %p\n",
-	      list_entry(me->me_list.prev, lnet_me_t, me_list));
-	CWARN("\tnext\t= %p\n",
-	      list_entry(me->me_list.next, lnet_me_t, me_list));
-}
-#endif
diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
deleted file mode 100644
index 433faae9a2ff..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ /dev/null
@@ -1,2436 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/lnet/lib-move.c
- *
- * Data movement routines
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/lnet/lib-lnet.h"
-
-static int local_nid_dist_zero = 1;
-module_param(local_nid_dist_zero, int, 0444);
-MODULE_PARM_DESC(local_nid_dist_zero, "Reserved");
-
-int
-lnet_fail_nid(lnet_nid_t nid, unsigned int threshold)
-{
-	lnet_test_peer_t *tp;
-	struct list_head *el;
-	struct list_head *next;
-	struct list_head cull;
-
-	LASSERT(the_lnet.ln_init);
-
-	/* NB: use lnet_net_lock(0) to serialize operations on test peers */
-	if (threshold != 0) {
-		/* Adding a new entry */
-		LIBCFS_ALLOC(tp, sizeof(*tp));
-		if (tp == NULL)
-			return -ENOMEM;
-
-		tp->tp_nid = nid;
-		tp->tp_threshold = threshold;
-
-		lnet_net_lock(0);
-		list_add_tail(&tp->tp_list, &the_lnet.ln_test_peers);
-		lnet_net_unlock(0);
-		return 0;
-	}
-
-	/* removing entries */
-	INIT_LIST_HEAD(&cull);
-
-	lnet_net_lock(0);
-
-	list_for_each_safe(el, next, &the_lnet.ln_test_peers) {
-		tp = list_entry(el, lnet_test_peer_t, tp_list);
-
-		if (tp->tp_threshold == 0 ||    /* needs culling anyway */
-		    nid == LNET_NID_ANY ||       /* removing all entries */
-		    tp->tp_nid == nid) {	  /* matched this one */
-			list_del(&tp->tp_list);
-			list_add(&tp->tp_list, &cull);
-		}
-	}
-
-	lnet_net_unlock(0);
-
-	while (!list_empty(&cull)) {
-		tp = list_entry(cull.next, lnet_test_peer_t, tp_list);
-
-		list_del(&tp->tp_list);
-		LIBCFS_FREE(tp, sizeof(*tp));
-	}
-	return 0;
-}
-
-static int
-fail_peer(lnet_nid_t nid, int outgoing)
-{
-	lnet_test_peer_t *tp;
-	struct list_head *el;
-	struct list_head *next;
-	struct list_head cull;
-	int fail = 0;
-
-	INIT_LIST_HEAD(&cull);
-
-	/* NB: use lnet_net_lock(0) to serialize operations on test peers */
-	lnet_net_lock(0);
-
-	list_for_each_safe(el, next, &the_lnet.ln_test_peers) {
-		tp = list_entry(el, lnet_test_peer_t, tp_list);
-
-		if (tp->tp_threshold == 0) {
-			/* zombie entry */
-			if (outgoing) {
-				/* only cull zombies on outgoing tests,
-				 * since we may be at interrupt priority on
-				 * incoming messages. */
-				list_del(&tp->tp_list);
-				list_add(&tp->tp_list, &cull);
-			}
-			continue;
-		}
-
-		if (tp->tp_nid == LNET_NID_ANY || /* fail every peer */
-		    nid == tp->tp_nid) {	/* fail this peer */
-			fail = 1;
-
-			if (tp->tp_threshold != LNET_MD_THRESH_INF) {
-				tp->tp_threshold--;
-				if (outgoing &&
-				    tp->tp_threshold == 0) {
-					/* see above */
-					list_del(&tp->tp_list);
-					list_add(&tp->tp_list, &cull);
-				}
-			}
-			break;
-		}
-	}
-
-	lnet_net_unlock(0);
-
-	while (!list_empty(&cull)) {
-		tp = list_entry(cull.next, lnet_test_peer_t, tp_list);
-		list_del(&tp->tp_list);
-
-		LIBCFS_FREE(tp, sizeof(*tp));
-	}
-
-	return fail;
-}
-
-unsigned int
-lnet_iov_nob(unsigned int niov, struct kvec *iov)
-{
-	unsigned int nob = 0;
-
-	while (niov-- > 0)
-		nob += (iov++)->iov_len;
-
-	return nob;
-}
-EXPORT_SYMBOL(lnet_iov_nob);
-
-void
-lnet_copy_iov2iov(unsigned int ndiov, struct kvec *diov, unsigned int doffset,
-		   unsigned int nsiov, struct kvec *siov, unsigned int soffset,
-		   unsigned int nob)
-{
-	/* NB diov, siov are READ-ONLY */
-	unsigned int this_nob;
-
-	if (nob == 0)
-		return;
-
-	/* skip complete frags before 'doffset' */
-	LASSERT(ndiov > 0);
-	while (doffset >= diov->iov_len) {
-		doffset -= diov->iov_len;
-		diov++;
-		ndiov--;
-		LASSERT(ndiov > 0);
-	}
-
-	/* skip complete frags before 'soffset' */
-	LASSERT(nsiov > 0);
-	while (soffset >= siov->iov_len) {
-		soffset -= siov->iov_len;
-		siov++;
-		nsiov--;
-		LASSERT(nsiov > 0);
-	}
-
-	do {
-		LASSERT(ndiov > 0);
-		LASSERT(nsiov > 0);
-		this_nob = min(diov->iov_len - doffset,
-			       siov->iov_len - soffset);
-		this_nob = min(this_nob, nob);
-
-		memcpy((char *)diov->iov_base + doffset,
-			(char *)siov->iov_base + soffset, this_nob);
-		nob -= this_nob;
-
-		if (diov->iov_len > doffset + this_nob) {
-			doffset += this_nob;
-		} else {
-			diov++;
-			ndiov--;
-			doffset = 0;
-		}
-
-		if (siov->iov_len > soffset + this_nob) {
-			soffset += this_nob;
-		} else {
-			siov++;
-			nsiov--;
-			soffset = 0;
-		}
-	} while (nob > 0);
-}
-EXPORT_SYMBOL(lnet_copy_iov2iov);
-
-int
-lnet_extract_iov(int dst_niov, struct kvec *dst,
-		  int src_niov, struct kvec *src,
-		  unsigned int offset, unsigned int len)
-{
-	/* Initialise 'dst' to the subset of 'src' starting at 'offset',
-	 * for exactly 'len' bytes, and return the number of entries.
-	 * NB not destructive to 'src' */
-	unsigned int frag_len;
-	unsigned int niov;
-
-	if (len == 0)			   /* no data => */
-		return 0;		     /* no frags */
-
-	LASSERT(src_niov > 0);
-	while (offset >= src->iov_len) {      /* skip initial frags */
-		offset -= src->iov_len;
-		src_niov--;
-		src++;
-		LASSERT(src_niov > 0);
-	}
-
-	niov = 1;
-	for (;;) {
-		LASSERT(src_niov > 0);
-		LASSERT((int)niov <= dst_niov);
-
-		frag_len = src->iov_len - offset;
-		dst->iov_base = ((char *)src->iov_base) + offset;
-
-		if (len <= frag_len) {
-			dst->iov_len = len;
-			return niov;
-		}
-
-		dst->iov_len = frag_len;
-
-		len -= frag_len;
-		dst++;
-		src++;
-		niov++;
-		src_niov--;
-		offset = 0;
-	}
-}
-EXPORT_SYMBOL(lnet_extract_iov);
-
-
-unsigned int
-lnet_kiov_nob(unsigned int niov, lnet_kiov_t *kiov)
-{
-	unsigned int nob = 0;
-
-	while (niov-- > 0)
-		nob += (kiov++)->kiov_len;
-
-	return nob;
-}
-EXPORT_SYMBOL(lnet_kiov_nob);
-
-void
-lnet_copy_kiov2kiov(unsigned int ndiov, lnet_kiov_t *diov, unsigned int doffset,
-		    unsigned int nsiov, lnet_kiov_t *siov, unsigned int soffset,
-		    unsigned int nob)
-{
-	/* NB diov, siov are READ-ONLY */
-	unsigned int this_nob;
-	char *daddr = NULL;
-	char *saddr = NULL;
-
-	if (nob == 0)
-		return;
-
-	LASSERT(!in_interrupt());
-
-	LASSERT(ndiov > 0);
-	while (doffset >= diov->kiov_len) {
-		doffset -= diov->kiov_len;
-		diov++;
-		ndiov--;
-		LASSERT(ndiov > 0);
-	}
-
-	LASSERT(nsiov > 0);
-	while (soffset >= siov->kiov_len) {
-		soffset -= siov->kiov_len;
-		siov++;
-		nsiov--;
-		LASSERT(nsiov > 0);
-	}
-
-	do {
-		LASSERT(ndiov > 0);
-		LASSERT(nsiov > 0);
-		this_nob = min(diov->kiov_len - doffset,
-			       siov->kiov_len - soffset);
-		this_nob = min(this_nob, nob);
-
-		if (daddr == NULL)
-			daddr = ((char *)kmap(diov->kiov_page)) +
-				diov->kiov_offset + doffset;
-		if (saddr == NULL)
-			saddr = ((char *)kmap(siov->kiov_page)) +
-				siov->kiov_offset + soffset;
-
-		/* Vanishing risk of kmap deadlock when mapping 2 pages.
-		 * However in practice at least one of the kiovs will be mapped
-		 * kernel pages and the map/unmap will be NOOPs */
-
-		memcpy(daddr, saddr, this_nob);
-		nob -= this_nob;
-
-		if (diov->kiov_len > doffset + this_nob) {
-			daddr += this_nob;
-			doffset += this_nob;
-		} else {
-			kunmap(diov->kiov_page);
-			daddr = NULL;
-			diov++;
-			ndiov--;
-			doffset = 0;
-		}
-
-		if (siov->kiov_len > soffset + this_nob) {
-			saddr += this_nob;
-			soffset += this_nob;
-		} else {
-			kunmap(siov->kiov_page);
-			saddr = NULL;
-			siov++;
-			nsiov--;
-			soffset = 0;
-		}
-	} while (nob > 0);
-
-	if (daddr != NULL)
-		kunmap(diov->kiov_page);
-	if (saddr != NULL)
-		kunmap(siov->kiov_page);
-}
-EXPORT_SYMBOL(lnet_copy_kiov2kiov);
-
-void
-lnet_copy_kiov2iov(unsigned int niov, struct kvec *iov, unsigned int iovoffset,
-		   unsigned int nkiov, lnet_kiov_t *kiov,
-		   unsigned int kiovoffset, unsigned int nob)
-{
-	/* NB iov, kiov are READ-ONLY */
-	unsigned int this_nob;
-	char *addr = NULL;
-
-	if (nob == 0)
-		return;
-
-	LASSERT(!in_interrupt());
-
-	LASSERT(niov > 0);
-	while (iovoffset >= iov->iov_len) {
-		iovoffset -= iov->iov_len;
-		iov++;
-		niov--;
-		LASSERT(niov > 0);
-	}
-
-	LASSERT(nkiov > 0);
-	while (kiovoffset >= kiov->kiov_len) {
-		kiovoffset -= kiov->kiov_len;
-		kiov++;
-		nkiov--;
-		LASSERT(nkiov > 0);
-	}
-
-	do {
-		LASSERT(niov > 0);
-		LASSERT(nkiov > 0);
-		this_nob = min(iov->iov_len - iovoffset,
-			       (__kernel_size_t) kiov->kiov_len - kiovoffset);
-		this_nob = min(this_nob, nob);
-
-		if (addr == NULL)
-			addr = ((char *)kmap(kiov->kiov_page)) +
-				kiov->kiov_offset + kiovoffset;
-
-		memcpy((char *)iov->iov_base + iovoffset, addr, this_nob);
-		nob -= this_nob;
-
-		if (iov->iov_len > iovoffset + this_nob) {
-			iovoffset += this_nob;
-		} else {
-			iov++;
-			niov--;
-			iovoffset = 0;
-		}
-
-		if (kiov->kiov_len > kiovoffset + this_nob) {
-			addr += this_nob;
-			kiovoffset += this_nob;
-		} else {
-			kunmap(kiov->kiov_page);
-			addr = NULL;
-			kiov++;
-			nkiov--;
-			kiovoffset = 0;
-		}
-
-	} while (nob > 0);
-
-	if (addr != NULL)
-		kunmap(kiov->kiov_page);
-}
-EXPORT_SYMBOL(lnet_copy_kiov2iov);
-
-void
-lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov,
-		   unsigned int kiovoffset, unsigned int niov,
-		   struct kvec *iov, unsigned int iovoffset,
-		   unsigned int nob)
-{
-	/* NB kiov, iov are READ-ONLY */
-	unsigned int this_nob;
-	char *addr = NULL;
-
-	if (nob == 0)
-		return;
-
-	LASSERT(!in_interrupt());
-
-	LASSERT(nkiov > 0);
-	while (kiovoffset >= kiov->kiov_len) {
-		kiovoffset -= kiov->kiov_len;
-		kiov++;
-		nkiov--;
-		LASSERT(nkiov > 0);
-	}
-
-	LASSERT(niov > 0);
-	while (iovoffset >= iov->iov_len) {
-		iovoffset -= iov->iov_len;
-		iov++;
-		niov--;
-		LASSERT(niov > 0);
-	}
-
-	do {
-		LASSERT(nkiov > 0);
-		LASSERT(niov > 0);
-		this_nob = min((__kernel_size_t) kiov->kiov_len - kiovoffset,
-			       iov->iov_len - iovoffset);
-		this_nob = min(this_nob, nob);
-
-		if (addr == NULL)
-			addr = ((char *)kmap(kiov->kiov_page)) +
-				kiov->kiov_offset + kiovoffset;
-
-		memcpy(addr, (char *)iov->iov_base + iovoffset, this_nob);
-		nob -= this_nob;
-
-		if (kiov->kiov_len > kiovoffset + this_nob) {
-			addr += this_nob;
-			kiovoffset += this_nob;
-		} else {
-			kunmap(kiov->kiov_page);
-			addr = NULL;
-			kiov++;
-			nkiov--;
-			kiovoffset = 0;
-		}
-
-		if (iov->iov_len > iovoffset + this_nob) {
-			iovoffset += this_nob;
-		} else {
-			iov++;
-			niov--;
-			iovoffset = 0;
-		}
-	} while (nob > 0);
-
-	if (addr != NULL)
-		kunmap(kiov->kiov_page);
-}
-EXPORT_SYMBOL(lnet_copy_iov2kiov);
-
-int
-lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
-		   int src_niov, lnet_kiov_t *src,
-		   unsigned int offset, unsigned int len)
-{
-	/* Initialise 'dst' to the subset of 'src' starting at 'offset',
-	 * for exactly 'len' bytes, and return the number of entries.
-	 * NB not destructive to 'src' */
-	unsigned int frag_len;
-	unsigned int niov;
-
-	if (len == 0)			   /* no data => */
-		return 0;		     /* no frags */
-
-	LASSERT(src_niov > 0);
-	while (offset >= src->kiov_len) {      /* skip initial frags */
-		offset -= src->kiov_len;
-		src_niov--;
-		src++;
-		LASSERT(src_niov > 0);
-	}
-
-	niov = 1;
-	for (;;) {
-		LASSERT(src_niov > 0);
-		LASSERT((int)niov <= dst_niov);
-
-		frag_len = src->kiov_len - offset;
-		dst->kiov_page = src->kiov_page;
-		dst->kiov_offset = src->kiov_offset + offset;
-
-		if (len <= frag_len) {
-			dst->kiov_len = len;
-			LASSERT(dst->kiov_offset + dst->kiov_len
-					     <= PAGE_CACHE_SIZE);
-			return niov;
-		}
-
-		dst->kiov_len = frag_len;
-		LASSERT(dst->kiov_offset + dst->kiov_len <= PAGE_CACHE_SIZE);
-
-		len -= frag_len;
-		dst++;
-		src++;
-		niov++;
-		src_niov--;
-		offset = 0;
-	}
-}
-EXPORT_SYMBOL(lnet_extract_kiov);
-
-static void
-lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
-	     unsigned int offset, unsigned int mlen, unsigned int rlen)
-{
-	unsigned int niov = 0;
-	struct kvec *iov = NULL;
-	lnet_kiov_t *kiov = NULL;
-	int rc;
-
-	LASSERT(!in_interrupt());
-	LASSERT(mlen == 0 || msg != NULL);
-
-	if (msg != NULL) {
-		LASSERT(msg->msg_receiving);
-		LASSERT(!msg->msg_sending);
-		LASSERT(rlen == msg->msg_len);
-		LASSERT(mlen <= msg->msg_len);
-		LASSERT(msg->msg_offset == offset);
-		LASSERT(msg->msg_wanted == mlen);
-
-		msg->msg_receiving = 0;
-
-		if (mlen != 0) {
-			niov = msg->msg_niov;
-			iov  = msg->msg_iov;
-			kiov = msg->msg_kiov;
-
-			LASSERT(niov > 0);
-			LASSERT((iov == NULL) != (kiov == NULL));
-		}
-	}
-
-	rc = (ni->ni_lnd->lnd_recv)(ni, private, msg, delayed,
-				    niov, iov, kiov, offset, mlen, rlen);
-	if (rc < 0)
-		lnet_finalize(ni, msg, rc);
-}
-
-static void
-lnet_setpayloadbuffer(lnet_msg_t *msg)
-{
-	lnet_libmd_t *md = msg->msg_md;
-
-	LASSERT(msg->msg_len > 0);
-	LASSERT(!msg->msg_routing);
-	LASSERT(md != NULL);
-	LASSERT(msg->msg_niov == 0);
-	LASSERT(msg->msg_iov == NULL);
-	LASSERT(msg->msg_kiov == NULL);
-
-	msg->msg_niov = md->md_niov;
-	if ((md->md_options & LNET_MD_KIOV) != 0)
-		msg->msg_kiov = md->md_iov.kiov;
-	else
-		msg->msg_iov = md->md_iov.iov;
-}
-
-void
-lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
-	       unsigned int offset, unsigned int len)
-{
-	msg->msg_type = type;
-	msg->msg_target = target;
-	msg->msg_len = len;
-	msg->msg_offset = offset;
-
-	if (len != 0)
-		lnet_setpayloadbuffer(msg);
-
-	memset(&msg->msg_hdr, 0, sizeof(msg->msg_hdr));
-	msg->msg_hdr.type	   = cpu_to_le32(type);
-	msg->msg_hdr.dest_nid       = cpu_to_le64(target.nid);
-	msg->msg_hdr.dest_pid       = cpu_to_le32(target.pid);
-	/* src_nid will be set later */
-	msg->msg_hdr.src_pid	= cpu_to_le32(the_lnet.ln_pid);
-	msg->msg_hdr.payload_length = cpu_to_le32(len);
-}
-
-static void
-lnet_ni_send(lnet_ni_t *ni, lnet_msg_t *msg)
-{
-	void *priv = msg->msg_private;
-	int rc;
-
-	LASSERT(!in_interrupt());
-	LASSERT(LNET_NETTYP(LNET_NIDNET(ni->ni_nid)) == LOLND ||
-		 (msg->msg_txcredit && msg->msg_peertxcredit));
-
-	rc = (ni->ni_lnd->lnd_send)(ni, priv, msg);
-	if (rc < 0)
-		lnet_finalize(ni, msg, rc);
-}
-
-static int
-lnet_ni_eager_recv(lnet_ni_t *ni, lnet_msg_t *msg)
-{
-	int rc;
-
-	LASSERT(!msg->msg_sending);
-	LASSERT(msg->msg_receiving);
-	LASSERT(!msg->msg_rx_ready_delay);
-	LASSERT(ni->ni_lnd->lnd_eager_recv != NULL);
-
-	msg->msg_rx_ready_delay = 1;
-	rc = (ni->ni_lnd->lnd_eager_recv)(ni, msg->msg_private, msg,
-					  &msg->msg_private);
-	if (rc != 0) {
-		CERROR("recv from %s / send to %s aborted: eager_recv failed %d\n",
-		       libcfs_nid2str(msg->msg_rxpeer->lp_nid),
-		       libcfs_id2str(msg->msg_target), rc);
-		LASSERT(rc < 0); /* required by my callers */
-	}
-
-	return rc;
-}
-
-/* NB: caller shall hold a ref on 'lp' as I'd drop lnet_net_lock */
-static void
-lnet_ni_query_locked(lnet_ni_t *ni, lnet_peer_t *lp)
-{
-	unsigned long last_alive = 0;
-
-	LASSERT(lnet_peer_aliveness_enabled(lp));
-	LASSERT(ni->ni_lnd->lnd_query != NULL);
-
-	lnet_net_unlock(lp->lp_cpt);
-	(ni->ni_lnd->lnd_query)(ni, lp->lp_nid, &last_alive);
-	lnet_net_lock(lp->lp_cpt);
-
-	lp->lp_last_query = cfs_time_current();
-
-	if (last_alive != 0) /* NI has updated timestamp */
-		lp->lp_last_alive = last_alive;
-}
-
-/* NB: always called with lnet_net_lock held */
-static inline int
-lnet_peer_is_alive(lnet_peer_t *lp, unsigned long now)
-{
-	int alive;
-	unsigned long deadline;
-
-	LASSERT(lnet_peer_aliveness_enabled(lp));
-
-	/* Trust lnet_notify() if it has more recent aliveness news, but
-	 * ignore the initial assumed death (see lnet_peers_start_down()).
-	 */
-	if (!lp->lp_alive && lp->lp_alive_count > 0 &&
-	    cfs_time_aftereq(lp->lp_timestamp, lp->lp_last_alive))
-		return 0;
-
-	deadline = cfs_time_add(lp->lp_last_alive,
-				cfs_time_seconds(lp->lp_ni->ni_peertimeout));
-	alive = cfs_time_after(deadline, now);
-
-	/* Update obsolete lp_alive except for routers assumed to be dead
-	 * initially, because router checker would update aliveness in this
-	 * case, and moreover lp_last_alive at peer creation is assumed.
-	 */
-	if (alive && !lp->lp_alive &&
-	    !(lnet_isrouter(lp) && lp->lp_alive_count == 0))
-		lnet_notify_locked(lp, 0, 1, lp->lp_last_alive);
-
-	return alive;
-}
-
-
-/* NB: returns 1 when alive, 0 when dead, negative when error;
- *     may drop the lnet_net_lock */
-static int
-lnet_peer_alive_locked(lnet_peer_t *lp)
-{
-	unsigned long now = cfs_time_current();
-
-	if (!lnet_peer_aliveness_enabled(lp))
-		return -ENODEV;
-
-	if (lnet_peer_is_alive(lp, now))
-		return 1;
-
-	/* Peer appears dead, but we should avoid frequent NI queries (at
-	 * most once per lnet_queryinterval seconds). */
-	if (lp->lp_last_query != 0) {
-		static const int lnet_queryinterval = 1;
-
-		unsigned long next_query =
-			   cfs_time_add(lp->lp_last_query,
-					cfs_time_seconds(lnet_queryinterval));
-
-		if (time_before(now, next_query)) {
-			if (lp->lp_alive)
-				CWARN("Unexpected aliveness of peer %s: %d < %d (%d/%d)\n",
-				      libcfs_nid2str(lp->lp_nid),
-				      (int)now, (int)next_query,
-				      lnet_queryinterval,
-				      lp->lp_ni->ni_peertimeout);
-			return 0;
-		}
-	}
-
-	/* query NI for latest aliveness news */
-	lnet_ni_query_locked(lp->lp_ni, lp);
-
-	if (lnet_peer_is_alive(lp, now))
-		return 1;
-
-	lnet_notify_locked(lp, 0, 0, lp->lp_last_alive);
-	return 0;
-}
-
-/**
- * \param msg The message to be sent.
- * \param do_send True if lnet_ni_send() should be called in this function.
- *	  lnet_send() is going to lnet_net_unlock immediately after this, so
- *	  it sets do_send FALSE and I don't do the unlock/send/lock bit.
- *
- * \retval 0 If \a msg sent or OK to send.
- * \retval EAGAIN If \a msg blocked for credit.
- * \retval EHOSTUNREACH If the next hop of the message appears dead.
- * \retval ECANCELED If the MD of the message has been unlinked.
- */
-static int
-lnet_post_send_locked(lnet_msg_t *msg, int do_send)
-{
-	lnet_peer_t *lp = msg->msg_txpeer;
-	lnet_ni_t *ni = lp->lp_ni;
-	int cpt = msg->msg_tx_cpt;
-	struct lnet_tx_queue *tq = ni->ni_tx_queues[cpt];
-
-	/* non-lnet_send() callers have checked before */
-	LASSERT(!do_send || msg->msg_tx_delayed);
-	LASSERT(!msg->msg_receiving);
-	LASSERT(msg->msg_tx_committed);
-
-	/* NB 'lp' is always the next hop */
-	if ((msg->msg_target.pid & LNET_PID_USERFLAG) == 0 &&
-	    lnet_peer_alive_locked(lp) == 0) {
-		the_lnet.ln_counters[cpt]->drop_count++;
-		the_lnet.ln_counters[cpt]->drop_length += msg->msg_len;
-		lnet_net_unlock(cpt);
-
-		CNETERR("Dropping message for %s: peer not alive\n",
-			libcfs_id2str(msg->msg_target));
-		if (do_send)
-			lnet_finalize(ni, msg, -EHOSTUNREACH);
-
-		lnet_net_lock(cpt);
-		return EHOSTUNREACH;
-	}
-
-	if (msg->msg_md != NULL &&
-	    (msg->msg_md->md_flags & LNET_MD_FLAG_ABORTED) != 0) {
-		lnet_net_unlock(cpt);
-
-		CNETERR("Aborting message for %s: LNetM[DE]Unlink() already called on the MD/ME.\n",
-			libcfs_id2str(msg->msg_target));
-		if (do_send)
-			lnet_finalize(ni, msg, -ECANCELED);
-
-		lnet_net_lock(cpt);
-		return ECANCELED;
-	}
-
-	if (!msg->msg_peertxcredit) {
-		LASSERT((lp->lp_txcredits < 0) ==
-			 !list_empty(&lp->lp_txq));
-
-		msg->msg_peertxcredit = 1;
-		lp->lp_txqnob += msg->msg_len + sizeof(lnet_hdr_t);
-		lp->lp_txcredits--;
-
-		if (lp->lp_txcredits < lp->lp_mintxcredits)
-			lp->lp_mintxcredits = lp->lp_txcredits;
-
-		if (lp->lp_txcredits < 0) {
-			msg->msg_tx_delayed = 1;
-			list_add_tail(&msg->msg_list, &lp->lp_txq);
-			return EAGAIN;
-		}
-	}
-
-	if (!msg->msg_txcredit) {
-		LASSERT((tq->tq_credits < 0) ==
-			!list_empty(&tq->tq_delayed));
-
-		msg->msg_txcredit = 1;
-		tq->tq_credits--;
-
-		if (tq->tq_credits < tq->tq_credits_min)
-			tq->tq_credits_min = tq->tq_credits;
-
-		if (tq->tq_credits < 0) {
-			msg->msg_tx_delayed = 1;
-			list_add_tail(&msg->msg_list, &tq->tq_delayed);
-			return EAGAIN;
-		}
-	}
-
-	if (do_send) {
-		lnet_net_unlock(cpt);
-		lnet_ni_send(ni, msg);
-		lnet_net_lock(cpt);
-	}
-	return 0;
-}
-
-
-static lnet_rtrbufpool_t *
-lnet_msg2bufpool(lnet_msg_t *msg)
-{
-	lnet_rtrbufpool_t *rbp;
-	int cpt;
-
-	LASSERT(msg->msg_rx_committed);
-
-	cpt = msg->msg_rx_cpt;
-	rbp = &the_lnet.ln_rtrpools[cpt][0];
-
-	LASSERT(msg->msg_len <= LNET_MTU);
-	while (msg->msg_len > (unsigned int)rbp->rbp_npages * PAGE_CACHE_SIZE) {
-		rbp++;
-		LASSERT(rbp < &the_lnet.ln_rtrpools[cpt][LNET_NRBPOOLS]);
-	}
-
-	return rbp;
-}
-
-static int
-lnet_post_routed_recv_locked(lnet_msg_t *msg, int do_recv)
-{
-	/* lnet_parse is going to lnet_net_unlock immediately after this, so it
-	 * sets do_recv FALSE and I don't do the unlock/send/lock bit.  I
-	 * return EAGAIN if msg blocked and 0 if received or OK to receive */
-	lnet_peer_t *lp = msg->msg_rxpeer;
-	lnet_rtrbufpool_t *rbp;
-	lnet_rtrbuf_t *rb;
-
-	LASSERT(msg->msg_iov == NULL);
-	LASSERT(msg->msg_kiov == NULL);
-	LASSERT(msg->msg_niov == 0);
-	LASSERT(msg->msg_routing);
-	LASSERT(msg->msg_receiving);
-	LASSERT(!msg->msg_sending);
-
-	/* non-lnet_parse callers only receive delayed messages */
-	LASSERT(!do_recv || msg->msg_rx_delayed);
-
-	if (!msg->msg_peerrtrcredit) {
-		LASSERT((lp->lp_rtrcredits < 0) ==
-			 !list_empty(&lp->lp_rtrq));
-
-		msg->msg_peerrtrcredit = 1;
-		lp->lp_rtrcredits--;
-		if (lp->lp_rtrcredits < lp->lp_minrtrcredits)
-			lp->lp_minrtrcredits = lp->lp_rtrcredits;
-
-		if (lp->lp_rtrcredits < 0) {
-			/* must have checked eager_recv before here */
-			LASSERT(msg->msg_rx_ready_delay);
-			msg->msg_rx_delayed = 1;
-			list_add_tail(&msg->msg_list, &lp->lp_rtrq);
-			return EAGAIN;
-		}
-	}
-
-	rbp = lnet_msg2bufpool(msg);
-
-	if (!msg->msg_rtrcredit) {
-		LASSERT((rbp->rbp_credits < 0) ==
-			 !list_empty(&rbp->rbp_msgs));
-
-		msg->msg_rtrcredit = 1;
-		rbp->rbp_credits--;
-		if (rbp->rbp_credits < rbp->rbp_mincredits)
-			rbp->rbp_mincredits = rbp->rbp_credits;
-
-		if (rbp->rbp_credits < 0) {
-			/* must have checked eager_recv before here */
-			LASSERT(msg->msg_rx_ready_delay);
-			msg->msg_rx_delayed = 1;
-			list_add_tail(&msg->msg_list, &rbp->rbp_msgs);
-			return EAGAIN;
-		}
-	}
-
-	LASSERT(!list_empty(&rbp->rbp_bufs));
-	rb = list_entry(rbp->rbp_bufs.next, lnet_rtrbuf_t, rb_list);
-	list_del(&rb->rb_list);
-
-	msg->msg_niov = rbp->rbp_npages;
-	msg->msg_kiov = &rb->rb_kiov[0];
-
-	if (do_recv) {
-		int cpt = msg->msg_rx_cpt;
-
-		lnet_net_unlock(cpt);
-		lnet_ni_recv(lp->lp_ni, msg->msg_private, msg, 1,
-			     0, msg->msg_len, msg->msg_len);
-		lnet_net_lock(cpt);
-	}
-	return 0;
-}
-
-void
-lnet_return_tx_credits_locked(lnet_msg_t *msg)
-{
-	lnet_peer_t *txpeer = msg->msg_txpeer;
-	lnet_msg_t *msg2;
-
-	if (msg->msg_txcredit) {
-		struct lnet_ni *ni = txpeer->lp_ni;
-		struct lnet_tx_queue *tq = ni->ni_tx_queues[msg->msg_tx_cpt];
-
-		/* give back NI txcredits */
-		msg->msg_txcredit = 0;
-
-		LASSERT((tq->tq_credits < 0) ==
-			!list_empty(&tq->tq_delayed));
-
-		tq->tq_credits++;
-		if (tq->tq_credits <= 0) {
-			msg2 = list_entry(tq->tq_delayed.next,
-					      lnet_msg_t, msg_list);
-			list_del(&msg2->msg_list);
-
-			LASSERT(msg2->msg_txpeer->lp_ni == ni);
-			LASSERT(msg2->msg_tx_delayed);
-
-			(void) lnet_post_send_locked(msg2, 1);
-		}
-	}
-
-	if (msg->msg_peertxcredit) {
-		/* give back peer txcredits */
-		msg->msg_peertxcredit = 0;
-
-		LASSERT((txpeer->lp_txcredits < 0) ==
-			!list_empty(&txpeer->lp_txq));
-
-		txpeer->lp_txqnob -= msg->msg_len + sizeof(lnet_hdr_t);
-		LASSERT(txpeer->lp_txqnob >= 0);
-
-		txpeer->lp_txcredits++;
-		if (txpeer->lp_txcredits <= 0) {
-			msg2 = list_entry(txpeer->lp_txq.next,
-					      lnet_msg_t, msg_list);
-			list_del(&msg2->msg_list);
-
-			LASSERT(msg2->msg_txpeer == txpeer);
-			LASSERT(msg2->msg_tx_delayed);
-
-			(void) lnet_post_send_locked(msg2, 1);
-		}
-	}
-
-	if (txpeer != NULL) {
-		msg->msg_txpeer = NULL;
-		lnet_peer_decref_locked(txpeer);
-	}
-}
-
-void
-lnet_return_rx_credits_locked(lnet_msg_t *msg)
-{
-	lnet_peer_t *rxpeer = msg->msg_rxpeer;
-	lnet_msg_t *msg2;
-
-	if (msg->msg_rtrcredit) {
-		/* give back global router credits */
-		lnet_rtrbuf_t *rb;
-		lnet_rtrbufpool_t *rbp;
-
-		/* NB If a msg ever blocks for a buffer in rbp_msgs, it stays
-		 * there until it gets one allocated, or aborts the wait
-		 * itself */
-		LASSERT(msg->msg_kiov != NULL);
-
-		rb = list_entry(msg->msg_kiov, lnet_rtrbuf_t, rb_kiov[0]);
-		rbp = rb->rb_pool;
-		LASSERT(rbp == lnet_msg2bufpool(msg));
-
-		msg->msg_kiov = NULL;
-		msg->msg_rtrcredit = 0;
-
-		LASSERT((rbp->rbp_credits < 0) ==
-			!list_empty(&rbp->rbp_msgs));
-		LASSERT((rbp->rbp_credits > 0) ==
-			!list_empty(&rbp->rbp_bufs));
-
-		list_add(&rb->rb_list, &rbp->rbp_bufs);
-		rbp->rbp_credits++;
-		if (rbp->rbp_credits <= 0) {
-			msg2 = list_entry(rbp->rbp_msgs.next,
-					      lnet_msg_t, msg_list);
-			list_del(&msg2->msg_list);
-
-			(void) lnet_post_routed_recv_locked(msg2, 1);
-		}
-	}
-
-	if (msg->msg_peerrtrcredit) {
-		/* give back peer router credits */
-		msg->msg_peerrtrcredit = 0;
-
-		LASSERT((rxpeer->lp_rtrcredits < 0) ==
-			!list_empty(&rxpeer->lp_rtrq));
-
-		rxpeer->lp_rtrcredits++;
-		if (rxpeer->lp_rtrcredits <= 0) {
-			msg2 = list_entry(rxpeer->lp_rtrq.next,
-					      lnet_msg_t, msg_list);
-			list_del(&msg2->msg_list);
-
-			(void) lnet_post_routed_recv_locked(msg2, 1);
-		}
-	}
-	if (rxpeer != NULL) {
-		msg->msg_rxpeer = NULL;
-		lnet_peer_decref_locked(rxpeer);
-	}
-}
-
-static int
-lnet_compare_routes(lnet_route_t *r1, lnet_route_t *r2)
-{
-	lnet_peer_t *p1 = r1->lr_gateway;
-	lnet_peer_t *p2 = r2->lr_gateway;
-
-	if (r1->lr_priority < r2->lr_priority)
-		return 1;
-
-	if (r1->lr_priority > r2->lr_priority)
-		return -1;
-
-	if (r1->lr_hops < r2->lr_hops)
-		return 1;
-
-	if (r1->lr_hops > r2->lr_hops)
-		return -1;
-
-	if (p1->lp_txqnob < p2->lp_txqnob)
-		return 1;
-
-	if (p1->lp_txqnob > p2->lp_txqnob)
-		return -1;
-
-	if (p1->lp_txcredits > p2->lp_txcredits)
-		return 1;
-
-	if (p1->lp_txcredits < p2->lp_txcredits)
-		return -1;
-
-	if (r1->lr_seq - r2->lr_seq <= 0)
-		return 1;
-
-	return -1;
-}
-
-static lnet_peer_t *
-lnet_find_route_locked(lnet_ni_t *ni, lnet_nid_t target, lnet_nid_t rtr_nid)
-{
-	lnet_remotenet_t *rnet;
-	lnet_route_t *rtr;
-	lnet_route_t *rtr_best;
-	lnet_route_t *rtr_last;
-	struct lnet_peer *lp_best;
-	struct lnet_peer *lp;
-	int rc;
-
-	/* If @rtr_nid is not LNET_NID_ANY, return the gateway with
-	 * rtr_nid nid, otherwise find the best gateway I can use */
-
-	rnet = lnet_find_net_locked(LNET_NIDNET(target));
-	if (rnet == NULL)
-		return NULL;
-
-	lp_best = NULL;
-	rtr_best = rtr_last = NULL;
-	list_for_each_entry(rtr, &rnet->lrn_routes, lr_list) {
-		lp = rtr->lr_gateway;
-
-		if (!lp->lp_alive || /* gateway is down */
-		    ((lp->lp_ping_feats & LNET_PING_FEAT_NI_STATUS) != 0 &&
-		     rtr->lr_downis != 0)) /* NI to target is down */
-			continue;
-
-		if (ni != NULL && lp->lp_ni != ni)
-			continue;
-
-		if (lp->lp_nid == rtr_nid) /* it's pre-determined router */
-			return lp;
-
-		if (lp_best == NULL) {
-			rtr_best = rtr_last = rtr;
-			lp_best = lp;
-			continue;
-		}
-
-		/* no protection on below fields, but it's harmless */
-		if (rtr_last->lr_seq - rtr->lr_seq < 0)
-			rtr_last = rtr;
-
-		rc = lnet_compare_routes(rtr, rtr_best);
-		if (rc < 0)
-			continue;
-
-		rtr_best = rtr;
-		lp_best = lp;
-	}
-
-	/* set sequence number on the best router to the latest sequence + 1
-	 * so we can round-robin all routers, it's race and inaccurate but
-	 * harmless and functional  */
-	if (rtr_best != NULL)
-		rtr_best->lr_seq = rtr_last->lr_seq + 1;
-	return lp_best;
-}
-
-int
-lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
-{
-	lnet_nid_t dst_nid = msg->msg_target.nid;
-	struct lnet_ni *src_ni;
-	struct lnet_ni *local_ni;
-	struct lnet_peer *lp;
-	int cpt;
-	int cpt2;
-	int rc;
-
-	/* NB: rtr_nid is set to LNET_NID_ANY for all current use-cases,
-	 * but we might want to use pre-determined router for ACK/REPLY
-	 * in the future */
-	/* NB: ni != NULL == interface pre-determined (ACK/REPLY) */
-	LASSERT(msg->msg_txpeer == NULL);
-	LASSERT(!msg->msg_sending);
-	LASSERT(!msg->msg_target_is_router);
-	LASSERT(!msg->msg_receiving);
-
-	msg->msg_sending = 1;
-
-	LASSERT(!msg->msg_tx_committed);
-	cpt = lnet_cpt_of_nid(rtr_nid == LNET_NID_ANY ? dst_nid : rtr_nid);
- again:
-	lnet_net_lock(cpt);
-
-	if (the_lnet.ln_shutdown) {
-		lnet_net_unlock(cpt);
-		return -ESHUTDOWN;
-	}
-
-	if (src_nid == LNET_NID_ANY) {
-		src_ni = NULL;
-	} else {
-		src_ni = lnet_nid2ni_locked(src_nid, cpt);
-		if (src_ni == NULL) {
-			lnet_net_unlock(cpt);
-			LCONSOLE_WARN("Can't send to %s: src %s is not a local nid\n",
-				      libcfs_nid2str(dst_nid),
-				      libcfs_nid2str(src_nid));
-			return -EINVAL;
-		}
-		LASSERT(!msg->msg_routing);
-	}
-
-	/* Is this for someone on a local network? */
-	local_ni = lnet_net2ni_locked(LNET_NIDNET(dst_nid), cpt);
-
-	if (local_ni != NULL) {
-		if (src_ni == NULL) {
-			src_ni = local_ni;
-			src_nid = src_ni->ni_nid;
-		} else if (src_ni == local_ni) {
-			lnet_ni_decref_locked(local_ni, cpt);
-		} else {
-			lnet_ni_decref_locked(local_ni, cpt);
-			lnet_ni_decref_locked(src_ni, cpt);
-			lnet_net_unlock(cpt);
-			LCONSOLE_WARN("No route to %s via from %s\n",
-				      libcfs_nid2str(dst_nid),
-				      libcfs_nid2str(src_nid));
-			return -EINVAL;
-		}
-
-		LASSERT(src_nid != LNET_NID_ANY);
-		lnet_msg_commit(msg, cpt);
-
-		if (!msg->msg_routing)
-			msg->msg_hdr.src_nid = cpu_to_le64(src_nid);
-
-		if (src_ni == the_lnet.ln_loni) {
-			/* No send credit hassles with LOLND */
-			lnet_net_unlock(cpt);
-			lnet_ni_send(src_ni, msg);
-
-			lnet_net_lock(cpt);
-			lnet_ni_decref_locked(src_ni, cpt);
-			lnet_net_unlock(cpt);
-			return 0;
-		}
-
-		rc = lnet_nid2peer_locked(&lp, dst_nid, cpt);
-		/* lp has ref on src_ni; lose mine */
-		lnet_ni_decref_locked(src_ni, cpt);
-		if (rc != 0) {
-			lnet_net_unlock(cpt);
-			LCONSOLE_WARN("Error %d finding peer %s\n", rc,
-				      libcfs_nid2str(dst_nid));
-			/* ENOMEM or shutting down */
-			return rc;
-		}
-		LASSERT(lp->lp_ni == src_ni);
-	} else {
-		/* sending to a remote network */
-		lp = lnet_find_route_locked(src_ni, dst_nid, rtr_nid);
-		if (lp == NULL) {
-			if (src_ni != NULL)
-				lnet_ni_decref_locked(src_ni, cpt);
-			lnet_net_unlock(cpt);
-
-			LCONSOLE_WARN("No route to %s via %s (all routers down)\n",
-				      libcfs_id2str(msg->msg_target),
-				      libcfs_nid2str(src_nid));
-			return -EHOSTUNREACH;
-		}
-
-		/* rtr_nid is LNET_NID_ANY or NID of pre-determined router,
-		 * it's possible that rtr_nid isn't LNET_NID_ANY and lp isn't
-		 * pre-determined router, this can happen if router table
-		 * was changed when we release the lock */
-		if (rtr_nid != lp->lp_nid) {
-			cpt2 = lnet_cpt_of_nid_locked(lp->lp_nid);
-			if (cpt2 != cpt) {
-				if (src_ni != NULL)
-					lnet_ni_decref_locked(src_ni, cpt);
-				lnet_net_unlock(cpt);
-
-				rtr_nid = lp->lp_nid;
-				cpt = cpt2;
-				goto again;
-			}
-		}
-
-		CDEBUG(D_NET, "Best route to %s via %s for %s %d\n",
-		       libcfs_nid2str(dst_nid), libcfs_nid2str(lp->lp_nid),
-		       lnet_msgtyp2str(msg->msg_type), msg->msg_len);
-
-		if (src_ni == NULL) {
-			src_ni = lp->lp_ni;
-			src_nid = src_ni->ni_nid;
-		} else {
-			LASSERT(src_ni == lp->lp_ni);
-			lnet_ni_decref_locked(src_ni, cpt);
-		}
-
-		lnet_peer_addref_locked(lp);
-
-		LASSERT(src_nid != LNET_NID_ANY);
-		lnet_msg_commit(msg, cpt);
-
-		if (!msg->msg_routing) {
-			/* I'm the source and now I know which NI to send on */
-			msg->msg_hdr.src_nid = cpu_to_le64(src_nid);
-		}
-
-		msg->msg_target_is_router = 1;
-		msg->msg_target.nid = lp->lp_nid;
-		msg->msg_target.pid = LUSTRE_SRV_LNET_PID;
-	}
-
-	/* 'lp' is our best choice of peer */
-
-	LASSERT(!msg->msg_peertxcredit);
-	LASSERT(!msg->msg_txcredit);
-	LASSERT(msg->msg_txpeer == NULL);
-
-	msg->msg_txpeer = lp;		   /* msg takes my ref on lp */
-
-	rc = lnet_post_send_locked(msg, 0);
-	lnet_net_unlock(cpt);
-
-	if (rc == EHOSTUNREACH || rc == ECANCELED)
-		return -rc;
-
-	if (rc == 0)
-		lnet_ni_send(src_ni, msg);
-
-	return 0; /* rc == 0 or EAGAIN */
-}
-
-static void
-lnet_drop_message(lnet_ni_t *ni, int cpt, void *private, unsigned int nob)
-{
-	lnet_net_lock(cpt);
-	the_lnet.ln_counters[cpt]->drop_count++;
-	the_lnet.ln_counters[cpt]->drop_length += nob;
-	lnet_net_unlock(cpt);
-
-	lnet_ni_recv(ni, private, NULL, 0, 0, 0, nob);
-}
-
-static void
-lnet_recv_put(lnet_ni_t *ni, lnet_msg_t *msg)
-{
-	lnet_hdr_t *hdr = &msg->msg_hdr;
-
-	if (msg->msg_wanted != 0)
-		lnet_setpayloadbuffer(msg);
-
-	lnet_build_msg_event(msg, LNET_EVENT_PUT);
-
-	/* Must I ACK?  If so I'll grab the ack_wmd out of the header and put
-	 * it back into the ACK during lnet_finalize() */
-	msg->msg_ack = (!lnet_is_wire_handle_none(&hdr->msg.put.ack_wmd) &&
-			(msg->msg_md->md_options & LNET_MD_ACK_DISABLE) == 0);
-
-	lnet_ni_recv(ni, msg->msg_private, msg, msg->msg_rx_delayed,
-		     msg->msg_offset, msg->msg_wanted, hdr->payload_length);
-}
-
-static int
-lnet_parse_put(lnet_ni_t *ni, lnet_msg_t *msg)
-{
-	lnet_hdr_t *hdr = &msg->msg_hdr;
-	struct lnet_match_info info;
-	int rc;
-
-	/* Convert put fields to host byte order */
-	hdr->msg.put.match_bits	= le64_to_cpu(hdr->msg.put.match_bits);
-	hdr->msg.put.ptl_index	= le32_to_cpu(hdr->msg.put.ptl_index);
-	hdr->msg.put.offset	= le32_to_cpu(hdr->msg.put.offset);
-
-	info.mi_id.nid	= hdr->src_nid;
-	info.mi_id.pid	= hdr->src_pid;
-	info.mi_opc	= LNET_MD_OP_PUT;
-	info.mi_portal	= hdr->msg.put.ptl_index;
-	info.mi_rlength	= hdr->payload_length;
-	info.mi_roffset	= hdr->msg.put.offset;
-	info.mi_mbits	= hdr->msg.put.match_bits;
-
-	msg->msg_rx_ready_delay = ni->ni_lnd->lnd_eager_recv == NULL;
-
- again:
-	rc = lnet_ptl_match_md(&info, msg);
-	switch (rc) {
-	default:
-		LBUG();
-
-	case LNET_MATCHMD_OK:
-		lnet_recv_put(ni, msg);
-		return 0;
-
-	case LNET_MATCHMD_NONE:
-		if (msg->msg_rx_delayed) /* attached on delayed list */
-			return 0;
-
-		rc = lnet_ni_eager_recv(ni, msg);
-		if (rc == 0)
-			goto again;
-		/* fall through */
-
-	case LNET_MATCHMD_DROP:
-		CNETERR("Dropping PUT from %s portal %d match %llu offset %d length %d: %d\n",
-			libcfs_id2str(info.mi_id), info.mi_portal,
-			info.mi_mbits, info.mi_roffset, info.mi_rlength, rc);
-
-		return ENOENT;	/* +ve: OK but no match */
-	}
-}
-
-static int
-lnet_parse_get(lnet_ni_t *ni, lnet_msg_t *msg, int rdma_get)
-{
-	struct lnet_match_info info;
-	lnet_hdr_t *hdr = &msg->msg_hdr;
-	lnet_handle_wire_t reply_wmd;
-	int rc;
-
-	/* Convert get fields to host byte order */
-	hdr->msg.get.match_bits  = le64_to_cpu(hdr->msg.get.match_bits);
-	hdr->msg.get.ptl_index   = le32_to_cpu(hdr->msg.get.ptl_index);
-	hdr->msg.get.sink_length = le32_to_cpu(hdr->msg.get.sink_length);
-	hdr->msg.get.src_offset  = le32_to_cpu(hdr->msg.get.src_offset);
-
-	info.mi_id.nid  = hdr->src_nid;
-	info.mi_id.pid  = hdr->src_pid;
-	info.mi_opc     = LNET_MD_OP_GET;
-	info.mi_portal  = hdr->msg.get.ptl_index;
-	info.mi_rlength = hdr->msg.get.sink_length;
-	info.mi_roffset = hdr->msg.get.src_offset;
-	info.mi_mbits   = hdr->msg.get.match_bits;
-
-	rc = lnet_ptl_match_md(&info, msg);
-	if (rc == LNET_MATCHMD_DROP) {
-		CNETERR("Dropping GET from %s portal %d match %llu offset %d length %d\n",
-			libcfs_id2str(info.mi_id), info.mi_portal,
-			info.mi_mbits, info.mi_roffset, info.mi_rlength);
-		return ENOENT;	/* +ve: OK but no match */
-	}
-
-	LASSERT(rc == LNET_MATCHMD_OK);
-
-	lnet_build_msg_event(msg, LNET_EVENT_GET);
-
-	reply_wmd = hdr->msg.get.return_wmd;
-
-	lnet_prep_send(msg, LNET_MSG_REPLY, info.mi_id,
-		       msg->msg_offset, msg->msg_wanted);
-
-	msg->msg_hdr.msg.reply.dst_wmd = reply_wmd;
-
-	if (rdma_get) {
-		/* The LND completes the REPLY from her recv procedure */
-		lnet_ni_recv(ni, msg->msg_private, msg, 0,
-			     msg->msg_offset, msg->msg_len, msg->msg_len);
-		return 0;
-	}
-
-	lnet_ni_recv(ni, msg->msg_private, NULL, 0, 0, 0, 0);
-	msg->msg_receiving = 0;
-
-	rc = lnet_send(ni->ni_nid, msg, LNET_NID_ANY);
-	if (rc < 0) {
-		/* didn't get as far as lnet_ni_send() */
-		CERROR("%s: Unable to send REPLY for GET from %s: %d\n",
-		       libcfs_nid2str(ni->ni_nid),
-		       libcfs_id2str(info.mi_id), rc);
-
-		lnet_finalize(ni, msg, rc);
-	}
-
-	return 0;
-}
-
-static int
-lnet_parse_reply(lnet_ni_t *ni, lnet_msg_t *msg)
-{
-	void *private = msg->msg_private;
-	lnet_hdr_t *hdr = &msg->msg_hdr;
-	lnet_process_id_t src = {0};
-	lnet_libmd_t *md;
-	int rlength;
-	int mlength;
-	int cpt;
-
-	cpt = lnet_cpt_of_cookie(hdr->msg.reply.dst_wmd.wh_object_cookie);
-	lnet_res_lock(cpt);
-
-	src.nid = hdr->src_nid;
-	src.pid = hdr->src_pid;
-
-	/* NB handles only looked up by creator (no flips) */
-	md = lnet_wire_handle2md(&hdr->msg.reply.dst_wmd);
-	if (md == NULL || md->md_threshold == 0 || md->md_me != NULL) {
-		CNETERR("%s: Dropping REPLY from %s for %s MD %#llx.%#llx\n",
-			libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
-			(md == NULL) ? "invalid" : "inactive",
-			hdr->msg.reply.dst_wmd.wh_interface_cookie,
-			hdr->msg.reply.dst_wmd.wh_object_cookie);
-		if (md != NULL && md->md_me != NULL)
-			CERROR("REPLY MD also attached to portal %d\n",
-			       md->md_me->me_portal);
-
-		lnet_res_unlock(cpt);
-		return ENOENT;		  /* +ve: OK but no match */
-	}
-
-	LASSERT(md->md_offset == 0);
-
-	rlength = hdr->payload_length;
-	mlength = min_t(uint, rlength, md->md_length);
-
-	if (mlength < rlength &&
-	    (md->md_options & LNET_MD_TRUNCATE) == 0) {
-		CNETERR("%s: Dropping REPLY from %s length %d for MD %#llx would overflow (%d)\n",
-			libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
-			rlength, hdr->msg.reply.dst_wmd.wh_object_cookie,
-			mlength);
-		lnet_res_unlock(cpt);
-		return ENOENT;	  /* +ve: OK but no match */
-	}
-
-	CDEBUG(D_NET, "%s: Reply from %s of length %d/%d into md %#llx\n",
-	       libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
-	       mlength, rlength, hdr->msg.reply.dst_wmd.wh_object_cookie);
-
-	lnet_msg_attach_md(msg, md, 0, mlength);
-
-	if (mlength != 0)
-		lnet_setpayloadbuffer(msg);
-
-	lnet_res_unlock(cpt);
-
-	lnet_build_msg_event(msg, LNET_EVENT_REPLY);
-
-	lnet_ni_recv(ni, private, msg, 0, 0, mlength, rlength);
-	return 0;
-}
-
-static int
-lnet_parse_ack(lnet_ni_t *ni, lnet_msg_t *msg)
-{
-	lnet_hdr_t *hdr = &msg->msg_hdr;
-	lnet_process_id_t src = {0};
-	lnet_libmd_t *md;
-	int cpt;
-
-	src.nid = hdr->src_nid;
-	src.pid = hdr->src_pid;
-
-	/* Convert ack fields to host byte order */
-	hdr->msg.ack.match_bits = le64_to_cpu(hdr->msg.ack.match_bits);
-	hdr->msg.ack.mlength = le32_to_cpu(hdr->msg.ack.mlength);
-
-	cpt = lnet_cpt_of_cookie(hdr->msg.ack.dst_wmd.wh_object_cookie);
-	lnet_res_lock(cpt);
-
-	/* NB handles only looked up by creator (no flips) */
-	md = lnet_wire_handle2md(&hdr->msg.ack.dst_wmd);
-	if (md == NULL || md->md_threshold == 0 || md->md_me != NULL) {
-		/* Don't moan; this is expected */
-		CDEBUG(D_NET,
-		       "%s: Dropping ACK from %s to %s MD %#llx.%#llx\n",
-		       libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
-		       (md == NULL) ? "invalid" : "inactive",
-		       hdr->msg.ack.dst_wmd.wh_interface_cookie,
-		       hdr->msg.ack.dst_wmd.wh_object_cookie);
-		if (md != NULL && md->md_me != NULL)
-			CERROR("Source MD also attached to portal %d\n",
-			       md->md_me->me_portal);
-
-		lnet_res_unlock(cpt);
-		return ENOENT;		  /* +ve! */
-	}
-
-	CDEBUG(D_NET, "%s: ACK from %s into md %#llx\n",
-	       libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
-	       hdr->msg.ack.dst_wmd.wh_object_cookie);
-
-	lnet_msg_attach_md(msg, md, 0, 0);
-
-	lnet_res_unlock(cpt);
-
-	lnet_build_msg_event(msg, LNET_EVENT_ACK);
-
-	lnet_ni_recv(ni, msg->msg_private, msg, 0, 0, 0, msg->msg_len);
-	return 0;
-}
-
-static int
-lnet_parse_forward_locked(lnet_ni_t *ni, lnet_msg_t *msg)
-{
-	int rc = 0;
-
-	if (msg->msg_rxpeer->lp_rtrcredits <= 0 ||
-	    lnet_msg2bufpool(msg)->rbp_credits <= 0) {
-		if (ni->ni_lnd->lnd_eager_recv == NULL) {
-			msg->msg_rx_ready_delay = 1;
-		} else {
-			lnet_net_unlock(msg->msg_rx_cpt);
-			rc = lnet_ni_eager_recv(ni, msg);
-			lnet_net_lock(msg->msg_rx_cpt);
-		}
-	}
-
-	if (rc == 0)
-		rc = lnet_post_routed_recv_locked(msg, 0);
-	return rc;
-}
-
-char *
-lnet_msgtyp2str(int type)
-{
-	switch (type) {
-	case LNET_MSG_ACK:
-		return "ACK";
-	case LNET_MSG_PUT:
-		return "PUT";
-	case LNET_MSG_GET:
-		return "GET";
-	case LNET_MSG_REPLY:
-		return "REPLY";
-	case LNET_MSG_HELLO:
-		return "HELLO";
-	default:
-		return "<UNKNOWN>";
-	}
-}
-EXPORT_SYMBOL(lnet_msgtyp2str);
-
-void
-lnet_print_hdr(lnet_hdr_t *hdr)
-{
-	lnet_process_id_t src = {0};
-	lnet_process_id_t dst = {0};
-	char *type_str = lnet_msgtyp2str(hdr->type);
-
-	src.nid = hdr->src_nid;
-	src.pid = hdr->src_pid;
-
-	dst.nid = hdr->dest_nid;
-	dst.pid = hdr->dest_pid;
-
-	CWARN("P3 Header at %p of type %s\n", hdr, type_str);
-	CWARN("    From %s\n", libcfs_id2str(src));
-	CWARN("    To   %s\n", libcfs_id2str(dst));
-
-	switch (hdr->type) {
-	default:
-		break;
-
-	case LNET_MSG_PUT:
-		CWARN("    Ptl index %d, ack md %#llx.%#llx, match bits %llu\n",
-		      hdr->msg.put.ptl_index,
-		      hdr->msg.put.ack_wmd.wh_interface_cookie,
-		      hdr->msg.put.ack_wmd.wh_object_cookie,
-		      hdr->msg.put.match_bits);
-		CWARN("    Length %d, offset %d, hdr data %#llx\n",
-		      hdr->payload_length, hdr->msg.put.offset,
-		      hdr->msg.put.hdr_data);
-		break;
-
-	case LNET_MSG_GET:
-		CWARN("    Ptl index %d, return md %#llx.%#llx, match bits %llu\n",
-		      hdr->msg.get.ptl_index,
-		      hdr->msg.get.return_wmd.wh_interface_cookie,
-		      hdr->msg.get.return_wmd.wh_object_cookie,
-		      hdr->msg.get.match_bits);
-		CWARN("    Length %d, src offset %d\n",
-		      hdr->msg.get.sink_length,
-		      hdr->msg.get.src_offset);
-		break;
-
-	case LNET_MSG_ACK:
-		CWARN("    dst md %#llx.%#llx, manipulated length %d\n",
-		      hdr->msg.ack.dst_wmd.wh_interface_cookie,
-		      hdr->msg.ack.dst_wmd.wh_object_cookie,
-		      hdr->msg.ack.mlength);
-		break;
-
-	case LNET_MSG_REPLY:
-		CWARN("    dst md %#llx.%#llx, length %d\n",
-		      hdr->msg.reply.dst_wmd.wh_interface_cookie,
-		      hdr->msg.reply.dst_wmd.wh_object_cookie,
-		      hdr->payload_length);
-	}
-
-}
-
-int
-lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
-	   void *private, int rdma_req)
-{
-	int rc = 0;
-	int cpt;
-	int for_me;
-	struct lnet_msg *msg;
-	lnet_pid_t dest_pid;
-	lnet_nid_t dest_nid;
-	lnet_nid_t src_nid;
-	__u32 payload_length;
-	__u32 type;
-
-	LASSERT(!in_interrupt());
-
-	type = le32_to_cpu(hdr->type);
-	src_nid = le64_to_cpu(hdr->src_nid);
-	dest_nid = le64_to_cpu(hdr->dest_nid);
-	dest_pid = le32_to_cpu(hdr->dest_pid);
-	payload_length = le32_to_cpu(hdr->payload_length);
-
-	for_me = (ni->ni_nid == dest_nid);
-	cpt = lnet_cpt_of_nid(from_nid);
-
-	switch (type) {
-	case LNET_MSG_ACK:
-	case LNET_MSG_GET:
-		if (payload_length > 0) {
-			CERROR("%s, src %s: bad %s payload %d (0 expected)\n",
-			       libcfs_nid2str(from_nid),
-			       libcfs_nid2str(src_nid),
-			       lnet_msgtyp2str(type), payload_length);
-			return -EPROTO;
-		}
-		break;
-
-	case LNET_MSG_PUT:
-	case LNET_MSG_REPLY:
-		if (payload_length >
-		   (__u32)(for_me ? LNET_MAX_PAYLOAD : LNET_MTU)) {
-			CERROR("%s, src %s: bad %s payload %d (%d max expected)\n",
-			       libcfs_nid2str(from_nid),
-			       libcfs_nid2str(src_nid),
-			       lnet_msgtyp2str(type),
-			       payload_length,
-			       for_me ? LNET_MAX_PAYLOAD : LNET_MTU);
-			return -EPROTO;
-		}
-		break;
-
-	default:
-		CERROR("%s, src %s: Bad message type 0x%x\n",
-		       libcfs_nid2str(from_nid),
-		       libcfs_nid2str(src_nid), type);
-		return -EPROTO;
-	}
-
-	if (the_lnet.ln_routing &&
-	    ni->ni_last_alive != get_seconds()) {
-		lnet_ni_lock(ni);
-
-		/* NB: so far here is the only place to set NI status to "up */
-		ni->ni_last_alive = get_seconds();
-		if (ni->ni_status != NULL &&
-		    ni->ni_status->ns_status == LNET_NI_STATUS_DOWN)
-			ni->ni_status->ns_status = LNET_NI_STATUS_UP;
-		lnet_ni_unlock(ni);
-	}
-
-	/* Regard a bad destination NID as a protocol error.  Senders should
-	 * know what they're doing; if they don't they're misconfigured, buggy
-	 * or malicious so we chop them off at the knees :) */
-
-	if (!for_me) {
-		if (LNET_NIDNET(dest_nid) == LNET_NIDNET(ni->ni_nid)) {
-			/* should have gone direct */
-			CERROR("%s, src %s: Bad dest nid %s (should have been sent direct)\n",
-			       libcfs_nid2str(from_nid),
-			       libcfs_nid2str(src_nid),
-			       libcfs_nid2str(dest_nid));
-			return -EPROTO;
-		}
-
-		if (lnet_islocalnid(dest_nid)) {
-			/* dest is another local NI; sender should have used
-			 * this node's NID on its own network */
-			CERROR("%s, src %s: Bad dest nid %s (it's my nid but on a different network)\n",
-			       libcfs_nid2str(from_nid),
-			       libcfs_nid2str(src_nid),
-			       libcfs_nid2str(dest_nid));
-			return -EPROTO;
-		}
-
-		if (rdma_req && type == LNET_MSG_GET) {
-			CERROR("%s, src %s: Bad optimized GET for %s (final destination must be me)\n",
-			       libcfs_nid2str(from_nid),
-			       libcfs_nid2str(src_nid),
-			       libcfs_nid2str(dest_nid));
-			return -EPROTO;
-		}
-
-		if (!the_lnet.ln_routing) {
-			CERROR("%s, src %s: Dropping message for %s (routing not enabled)\n",
-			       libcfs_nid2str(from_nid),
-			       libcfs_nid2str(src_nid),
-			       libcfs_nid2str(dest_nid));
-			goto drop;
-		}
-	}
-
-	/* Message looks OK; we're not going to return an error, so we MUST
-	 * call back lnd_recv() come what may... */
-
-	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer(src_nid, 0)) {	     /* shall we now? */
-		CERROR("%s, src %s: Dropping %s to simulate failure\n",
-		       libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
-		       lnet_msgtyp2str(type));
-		goto drop;
-	}
-
-	msg = lnet_msg_alloc();
-	if (msg == NULL) {
-		CERROR("%s, src %s: Dropping %s (out of memory)\n",
-		       libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
-		       lnet_msgtyp2str(type));
-		goto drop;
-	}
-
-	/* msg zeroed in lnet_msg_alloc;
-	 * i.e. flags all clear, pointers NULL etc
-	 */
-
-	msg->msg_type = type;
-	msg->msg_private = private;
-	msg->msg_receiving = 1;
-	msg->msg_len = msg->msg_wanted = payload_length;
-	msg->msg_offset = 0;
-	msg->msg_hdr = *hdr;
-	/* for building message event */
-	msg->msg_from = from_nid;
-	if (!for_me) {
-		msg->msg_target.pid	= dest_pid;
-		msg->msg_target.nid	= dest_nid;
-		msg->msg_routing	= 1;
-
-	} else {
-		/* convert common msg->hdr fields to host byteorder */
-		msg->msg_hdr.type	= type;
-		msg->msg_hdr.src_nid	= src_nid;
-		msg->msg_hdr.src_pid	= le32_to_cpu(msg->msg_hdr.src_pid);
-		msg->msg_hdr.dest_nid	= dest_nid;
-		msg->msg_hdr.dest_pid	= dest_pid;
-		msg->msg_hdr.payload_length = payload_length;
-	}
-
-	lnet_net_lock(cpt);
-	rc = lnet_nid2peer_locked(&msg->msg_rxpeer, from_nid, cpt);
-	if (rc != 0) {
-		lnet_net_unlock(cpt);
-		CERROR("%s, src %s: Dropping %s (error %d looking up sender)\n",
-		       libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
-		       lnet_msgtyp2str(type), rc);
-		lnet_msg_free(msg);
-		goto drop;
-	}
-
-	if (lnet_isrouter(msg->msg_rxpeer)) {
-		lnet_peer_set_alive(msg->msg_rxpeer);
-		if (avoid_asym_router_failure &&
-		    LNET_NIDNET(src_nid) != LNET_NIDNET(from_nid)) {
-			/* received a remote message from router, update
-			 * remote NI status on this router.
-			 * NB: multi-hop routed message will be ignored.
-			 */
-			lnet_router_ni_update_locked(msg->msg_rxpeer,
-						     LNET_NIDNET(src_nid));
-		}
-	}
-
-	lnet_msg_commit(msg, cpt);
-
-	if (!for_me) {
-		rc = lnet_parse_forward_locked(ni, msg);
-		lnet_net_unlock(cpt);
-
-		if (rc < 0)
-			goto free_drop;
-		if (rc == 0) {
-			lnet_ni_recv(ni, msg->msg_private, msg, 0,
-				     0, payload_length, payload_length);
-		}
-		return 0;
-	}
-
-	lnet_net_unlock(cpt);
-
-	switch (type) {
-	case LNET_MSG_ACK:
-		rc = lnet_parse_ack(ni, msg);
-		break;
-	case LNET_MSG_PUT:
-		rc = lnet_parse_put(ni, msg);
-		break;
-	case LNET_MSG_GET:
-		rc = lnet_parse_get(ni, msg, rdma_req);
-		break;
-	case LNET_MSG_REPLY:
-		rc = lnet_parse_reply(ni, msg);
-		break;
-	default:
-		LASSERT(0);
-		rc = -EPROTO;
-		goto free_drop;  /* prevent an unused label if !kernel */
-	}
-
-	if (rc == 0)
-		return 0;
-
-	LASSERT(rc == ENOENT);
-
- free_drop:
-	LASSERT(msg->msg_md == NULL);
-	lnet_finalize(ni, msg, rc);
-
- drop:
-	lnet_drop_message(ni, cpt, private, payload_length);
-	return 0;
-}
-EXPORT_SYMBOL(lnet_parse);
-
-void
-lnet_drop_delayed_msg_list(struct list_head *head, char *reason)
-{
-	while (!list_empty(head)) {
-		lnet_process_id_t id = {0};
-		lnet_msg_t *msg;
-
-		msg = list_entry(head->next, lnet_msg_t, msg_list);
-		list_del(&msg->msg_list);
-
-		id.nid = msg->msg_hdr.src_nid;
-		id.pid = msg->msg_hdr.src_pid;
-
-		LASSERT(msg->msg_md == NULL);
-		LASSERT(msg->msg_rx_delayed);
-		LASSERT(msg->msg_rxpeer != NULL);
-		LASSERT(msg->msg_hdr.type == LNET_MSG_PUT);
-
-		CWARN("Dropping delayed PUT from %s portal %d match %llu offset %d length %d: %s\n",
-		      libcfs_id2str(id),
-		      msg->msg_hdr.msg.put.ptl_index,
-		      msg->msg_hdr.msg.put.match_bits,
-		      msg->msg_hdr.msg.put.offset,
-		      msg->msg_hdr.payload_length, reason);
-
-		/* NB I can't drop msg's ref on msg_rxpeer until after I've
-		 * called lnet_drop_message(), so I just hang onto msg as well
-		 * until that's done */
-
-		lnet_drop_message(msg->msg_rxpeer->lp_ni,
-				  msg->msg_rxpeer->lp_cpt,
-				  msg->msg_private, msg->msg_len);
-		/*
-		 * NB: message will not generate event because w/o attached MD,
-		 * but we still should give error code so lnet_msg_decommit()
-		 * can skip counters operations and other checks.
-		 */
-		lnet_finalize(msg->msg_rxpeer->lp_ni, msg, -ENOENT);
-	}
-}
-
-void
-lnet_recv_delayed_msg_list(struct list_head *head)
-{
-	while (!list_empty(head)) {
-		lnet_msg_t *msg;
-		lnet_process_id_t id;
-
-		msg = list_entry(head->next, lnet_msg_t, msg_list);
-		list_del(&msg->msg_list);
-
-		/* md won't disappear under me, since each msg
-		 * holds a ref on it */
-
-		id.nid = msg->msg_hdr.src_nid;
-		id.pid = msg->msg_hdr.src_pid;
-
-		LASSERT(msg->msg_rx_delayed);
-		LASSERT(msg->msg_md != NULL);
-		LASSERT(msg->msg_rxpeer != NULL);
-		LASSERT(msg->msg_hdr.type == LNET_MSG_PUT);
-
-		CDEBUG(D_NET, "Resuming delayed PUT from %s portal %d match %llu offset %d length %d.\n",
-		       libcfs_id2str(id), msg->msg_hdr.msg.put.ptl_index,
-		       msg->msg_hdr.msg.put.match_bits,
-		       msg->msg_hdr.msg.put.offset,
-		       msg->msg_hdr.payload_length);
-
-		lnet_recv_put(msg->msg_rxpeer->lp_ni, msg);
-	}
-}
-
-/**
- * Initiate an asynchronous PUT operation.
- *
- * There are several events associated with a PUT: completion of the send on
- * the initiator node (LNET_EVENT_SEND), and when the send completes
- * successfully, the receipt of an acknowledgment (LNET_EVENT_ACK) indicating
- * that the operation was accepted by the target. The event LNET_EVENT_PUT is
- * used at the target node to indicate the completion of incoming data
- * delivery.
- *
- * The local events will be logged in the EQ associated with the MD pointed to
- * by \a mdh handle. Using a MD without an associated EQ results in these
- * events being discarded. In this case, the caller must have another
- * mechanism (e.g., a higher level protocol) for determining when it is safe
- * to modify the memory region associated with the MD.
- *
- * Note that LNet does not guarantee the order of LNET_EVENT_SEND and
- * LNET_EVENT_ACK, though intuitively ACK should happen after SEND.
- *
- * \param self Indicates the NID of a local interface through which to send
- * the PUT request. Use LNET_NID_ANY to let LNet choose one by itself.
- * \param mdh A handle for the MD that describes the memory to be sent. The MD
- * must be "free floating" (See LNetMDBind()).
- * \param ack Controls whether an acknowledgment is requested.
- * Acknowledgments are only sent when they are requested by the initiating
- * process and the target MD enables them.
- * \param target A process identifier for the target process.
- * \param portal The index in the \a target's portal table.
- * \param match_bits The match bits to use for MD selection at the target
- * process.
- * \param offset The offset into the target MD (only used when the target
- * MD has the LNET_MD_MANAGE_REMOTE option set).
- * \param hdr_data 64 bits of user data that can be included in the message
- * header. This data is written to an event queue entry at the target if an
- * EQ is present on the matching MD.
- *
- * \retval  0      Success, and only in this case events will be generated
- * and logged to EQ (if it exists).
- * \retval -EIO    Simulated failure.
- * \retval -ENOMEM Memory allocation failure.
- * \retval -ENOENT Invalid MD object.
- *
- * \see lnet_event_t::hdr_data and lnet_event_kind_t.
- */
-int
-LNetPut(lnet_nid_t self, lnet_handle_md_t mdh, lnet_ack_req_t ack,
-	lnet_process_id_t target, unsigned int portal,
-	__u64 match_bits, unsigned int offset,
-	__u64 hdr_data)
-{
-	struct lnet_msg *msg;
-	struct lnet_libmd *md;
-	int cpt;
-	int rc;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer(target.nid, 1)) { /* shall we now? */
-		CERROR("Dropping PUT to %s: simulated failure\n",
-		       libcfs_id2str(target));
-		return -EIO;
-	}
-
-	msg = lnet_msg_alloc();
-	if (msg == NULL) {
-		CERROR("Dropping PUT to %s: ENOMEM on lnet_msg_t\n",
-		       libcfs_id2str(target));
-		return -ENOMEM;
-	}
-	msg->msg_vmflush = !!memory_pressure_get();
-
-	cpt = lnet_cpt_of_cookie(mdh.cookie);
-	lnet_res_lock(cpt);
-
-	md = lnet_handle2md(&mdh);
-	if (md == NULL || md->md_threshold == 0 || md->md_me != NULL) {
-		CERROR("Dropping PUT (%llu:%d:%s): MD (%d) invalid\n",
-		       match_bits, portal, libcfs_id2str(target),
-		       md == NULL ? -1 : md->md_threshold);
-		if (md != NULL && md->md_me != NULL)
-			CERROR("Source MD also attached to portal %d\n",
-			       md->md_me->me_portal);
-		lnet_res_unlock(cpt);
-
-		lnet_msg_free(msg);
-		return -ENOENT;
-	}
-
-	CDEBUG(D_NET, "LNetPut -> %s\n", libcfs_id2str(target));
-
-	lnet_msg_attach_md(msg, md, 0, 0);
-
-	lnet_prep_send(msg, LNET_MSG_PUT, target, 0, md->md_length);
-
-	msg->msg_hdr.msg.put.match_bits = cpu_to_le64(match_bits);
-	msg->msg_hdr.msg.put.ptl_index = cpu_to_le32(portal);
-	msg->msg_hdr.msg.put.offset = cpu_to_le32(offset);
-	msg->msg_hdr.msg.put.hdr_data = hdr_data;
-
-	/* NB handles only looked up by creator (no flips) */
-	if (ack == LNET_ACK_REQ) {
-		msg->msg_hdr.msg.put.ack_wmd.wh_interface_cookie =
-			the_lnet.ln_interface_cookie;
-		msg->msg_hdr.msg.put.ack_wmd.wh_object_cookie =
-			md->md_lh.lh_cookie;
-	} else {
-		msg->msg_hdr.msg.put.ack_wmd.wh_interface_cookie =
-			LNET_WIRE_HANDLE_COOKIE_NONE;
-		msg->msg_hdr.msg.put.ack_wmd.wh_object_cookie =
-			LNET_WIRE_HANDLE_COOKIE_NONE;
-	}
-
-	lnet_res_unlock(cpt);
-
-	lnet_build_msg_event(msg, LNET_EVENT_SEND);
-
-	rc = lnet_send(self, msg, LNET_NID_ANY);
-	if (rc != 0) {
-		CNETERR("Error sending PUT to %s: %d\n",
-		       libcfs_id2str(target), rc);
-		lnet_finalize(NULL, msg, rc);
-	}
-
-	/* completion will be signalled by an event */
-	return 0;
-}
-EXPORT_SYMBOL(LNetPut);
-
-lnet_msg_t *
-lnet_create_reply_msg(lnet_ni_t *ni, lnet_msg_t *getmsg)
-{
-	/* The LND can DMA direct to the GET md (i.e. no REPLY msg).  This
-	 * returns a msg for the LND to pass to lnet_finalize() when the sink
-	 * data has been received.
-	 *
-	 * CAVEAT EMPTOR: 'getmsg' is the original GET, which is freed when
-	 * lnet_finalize() is called on it, so the LND must call this first */
-
-	struct lnet_msg *msg = lnet_msg_alloc();
-	struct lnet_libmd *getmd = getmsg->msg_md;
-	lnet_process_id_t peer_id = getmsg->msg_target;
-	int cpt;
-
-	LASSERT(!getmsg->msg_target_is_router);
-	LASSERT(!getmsg->msg_routing);
-
-	cpt = lnet_cpt_of_cookie(getmd->md_lh.lh_cookie);
-	lnet_res_lock(cpt);
-
-	LASSERT(getmd->md_refcount > 0);
-
-	if (msg == NULL) {
-		CERROR("%s: Dropping REPLY from %s: can't allocate msg\n",
-			libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id));
-		goto drop;
-	}
-
-	if (getmd->md_threshold == 0) {
-		CERROR("%s: Dropping REPLY from %s for inactive MD %p\n",
-			libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id),
-			getmd);
-		lnet_res_unlock(cpt);
-		goto drop;
-	}
-
-	LASSERT(getmd->md_offset == 0);
-
-	CDEBUG(D_NET, "%s: Reply from %s md %p\n",
-	       libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id), getmd);
-
-	/* setup information for lnet_build_msg_event */
-	msg->msg_from = peer_id.nid;
-	msg->msg_type = LNET_MSG_GET; /* flag this msg as an "optimized" GET */
-	msg->msg_hdr.src_nid = peer_id.nid;
-	msg->msg_hdr.payload_length = getmd->md_length;
-	msg->msg_receiving = 1; /* required by lnet_msg_attach_md */
-
-	lnet_msg_attach_md(msg, getmd, getmd->md_offset, getmd->md_length);
-	lnet_res_unlock(cpt);
-
-	cpt = lnet_cpt_of_nid(peer_id.nid);
-
-	lnet_net_lock(cpt);
-	lnet_msg_commit(msg, cpt);
-	lnet_net_unlock(cpt);
-
-	lnet_build_msg_event(msg, LNET_EVENT_REPLY);
-
-	return msg;
-
- drop:
-	cpt = lnet_cpt_of_nid(peer_id.nid);
-
-	lnet_net_lock(cpt);
-	the_lnet.ln_counters[cpt]->drop_count++;
-	the_lnet.ln_counters[cpt]->drop_length += getmd->md_length;
-	lnet_net_unlock(cpt);
-
-	if (msg != NULL)
-		lnet_msg_free(msg);
-
-	return NULL;
-}
-EXPORT_SYMBOL(lnet_create_reply_msg);
-
-void
-lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *reply, unsigned int len)
-{
-	/* Set the REPLY length, now the RDMA that elides the REPLY message has
-	 * completed and I know it. */
-	LASSERT(reply != NULL);
-	LASSERT(reply->msg_type == LNET_MSG_GET);
-	LASSERT(reply->msg_ev.type == LNET_EVENT_REPLY);
-
-	/* NB I trusted my peer to RDMA.  If she tells me she's written beyond
-	 * the end of my buffer, I might as well be dead. */
-	LASSERT(len <= reply->msg_ev.mlength);
-
-	reply->msg_ev.mlength = len;
-}
-EXPORT_SYMBOL(lnet_set_reply_msg_len);
-
-/**
- * Initiate an asynchronous GET operation.
- *
- * On the initiator node, an LNET_EVENT_SEND is logged when the GET request
- * is sent, and an LNET_EVENT_REPLY is logged when the data returned from
- * the target node in the REPLY has been written to local MD.
- *
- * On the target node, an LNET_EVENT_GET is logged when the GET request
- * arrives and is accepted into a MD.
- *
- * \param self,target,portal,match_bits,offset See the discussion in LNetPut().
- * \param mdh A handle for the MD that describes the memory into which the
- * requested data will be received. The MD must be "free floating"
- * (See LNetMDBind()).
- *
- * \retval  0      Success, and only in this case events will be generated
- * and logged to EQ (if it exists) of the MD.
- * \retval -EIO    Simulated failure.
- * \retval -ENOMEM Memory allocation failure.
- * \retval -ENOENT Invalid MD object.
- */
-int
-LNetGet(lnet_nid_t self, lnet_handle_md_t mdh,
-	lnet_process_id_t target, unsigned int portal,
-	__u64 match_bits, unsigned int offset)
-{
-	struct lnet_msg *msg;
-	struct lnet_libmd *md;
-	int cpt;
-	int rc;
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer(target.nid, 1)) {	  /* shall we now? */
-		CERROR("Dropping GET to %s: simulated failure\n",
-		       libcfs_id2str(target));
-		return -EIO;
-	}
-
-	msg = lnet_msg_alloc();
-	if (msg == NULL) {
-		CERROR("Dropping GET to %s: ENOMEM on lnet_msg_t\n",
-		       libcfs_id2str(target));
-		return -ENOMEM;
-	}
-
-	cpt = lnet_cpt_of_cookie(mdh.cookie);
-	lnet_res_lock(cpt);
-
-	md = lnet_handle2md(&mdh);
-	if (md == NULL || md->md_threshold == 0 || md->md_me != NULL) {
-		CERROR("Dropping GET (%llu:%d:%s): MD (%d) invalid\n",
-		       match_bits, portal, libcfs_id2str(target),
-		       md == NULL ? -1 : md->md_threshold);
-		if (md != NULL && md->md_me != NULL)
-			CERROR("REPLY MD also attached to portal %d\n",
-			       md->md_me->me_portal);
-
-		lnet_res_unlock(cpt);
-
-		lnet_msg_free(msg);
-		return -ENOENT;
-	}
-
-	CDEBUG(D_NET, "LNetGet -> %s\n", libcfs_id2str(target));
-
-	lnet_msg_attach_md(msg, md, 0, 0);
-
-	lnet_prep_send(msg, LNET_MSG_GET, target, 0, 0);
-
-	msg->msg_hdr.msg.get.match_bits = cpu_to_le64(match_bits);
-	msg->msg_hdr.msg.get.ptl_index = cpu_to_le32(portal);
-	msg->msg_hdr.msg.get.src_offset = cpu_to_le32(offset);
-	msg->msg_hdr.msg.get.sink_length = cpu_to_le32(md->md_length);
-
-	/* NB handles only looked up by creator (no flips) */
-	msg->msg_hdr.msg.get.return_wmd.wh_interface_cookie =
-		the_lnet.ln_interface_cookie;
-	msg->msg_hdr.msg.get.return_wmd.wh_object_cookie =
-		md->md_lh.lh_cookie;
-
-	lnet_res_unlock(cpt);
-
-	lnet_build_msg_event(msg, LNET_EVENT_SEND);
-
-	rc = lnet_send(self, msg, LNET_NID_ANY);
-	if (rc < 0) {
-		CNETERR("Error sending GET to %s: %d\n",
-		       libcfs_id2str(target), rc);
-		lnet_finalize(NULL, msg, rc);
-	}
-
-	/* completion will be signalled by an event */
-	return 0;
-}
-EXPORT_SYMBOL(LNetGet);
-
-/**
- * Calculate distance to node at \a dstnid.
- *
- * \param dstnid Target NID.
- * \param srcnidp If not NULL, NID of the local interface to reach \a dstnid
- * is saved here.
- * \param orderp If not NULL, order of the route to reach \a dstnid is saved
- * here.
- *
- * \retval 0 If \a dstnid belongs to a local interface, and reserved option
- * local_nid_dist_zero is set, which is the default.
- * \retval positives Distance to target NID, i.e. number of hops plus one.
- * \retval -EHOSTUNREACH If \a dstnid is not reachable.
- */
-int
-LNetDist(lnet_nid_t dstnid, lnet_nid_t *srcnidp, __u32 *orderp)
-{
-	struct list_head *e;
-	struct lnet_ni *ni;
-	lnet_remotenet_t *rnet;
-	__u32 dstnet = LNET_NIDNET(dstnid);
-	int hops;
-	int cpt;
-	__u32 order = 2;
-	struct list_head *rn_list;
-
-	/* if !local_nid_dist_zero, I don't return a distance of 0 ever
-	 * (when lustre sees a distance of 0, it substitutes 0@lo), so I
-	 * keep order 0 free for 0@lo and order 1 free for a local NID
-	 * match */
-
-	LASSERT(the_lnet.ln_init);
-	LASSERT(the_lnet.ln_refcount > 0);
-
-	cpt = lnet_net_lock_current();
-
-	list_for_each(e, &the_lnet.ln_nis) {
-		ni = list_entry(e, lnet_ni_t, ni_list);
-
-		if (ni->ni_nid == dstnid) {
-			if (srcnidp != NULL)
-				*srcnidp = dstnid;
-			if (orderp != NULL) {
-				if (LNET_NETTYP(LNET_NIDNET(dstnid)) == LOLND)
-					*orderp = 0;
-				else
-					*orderp = 1;
-			}
-			lnet_net_unlock(cpt);
-
-			return local_nid_dist_zero ? 0 : 1;
-		}
-
-		if (LNET_NIDNET(ni->ni_nid) == dstnet) {
-			if (srcnidp != NULL)
-				*srcnidp = ni->ni_nid;
-			if (orderp != NULL)
-				*orderp = order;
-			lnet_net_unlock(cpt);
-			return 1;
-		}
-
-		order++;
-	}
-
-	rn_list = lnet_net2rnethash(dstnet);
-	list_for_each(e, rn_list) {
-		rnet = list_entry(e, lnet_remotenet_t, lrn_list);
-
-		if (rnet->lrn_net == dstnet) {
-			lnet_route_t *route;
-			lnet_route_t *shortest = NULL;
-
-			LASSERT(!list_empty(&rnet->lrn_routes));
-
-			list_for_each_entry(route, &rnet->lrn_routes,
-						lr_list) {
-				if (shortest == NULL ||
-				    route->lr_hops < shortest->lr_hops)
-					shortest = route;
-			}
-
-			LASSERT(shortest != NULL);
-			hops = shortest->lr_hops;
-			if (srcnidp != NULL)
-				*srcnidp = shortest->lr_gateway->lp_ni->ni_nid;
-			if (orderp != NULL)
-				*orderp = order;
-			lnet_net_unlock(cpt);
-			return hops + 1;
-		}
-		order++;
-	}
-
-	lnet_net_unlock(cpt);
-	return -EHOSTUNREACH;
-}
-EXPORT_SYMBOL(LNetDist);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-msg.c b/drivers/staging/lustre/lnet/lnet/lib-msg.c
deleted file mode 100644
index 43977e8dffbb..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lib-msg.c
+++ /dev/null
@@ -1,647 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/lnet/lib-msg.c
- *
- * Message decoding, parsing and finalizing routines
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/lnet/lib-lnet.h"
-
-void
-lnet_build_unlink_event(lnet_libmd_t *md, lnet_event_t *ev)
-{
-	memset(ev, 0, sizeof(*ev));
-
-	ev->status   = 0;
-	ev->unlinked = 1;
-	ev->type     = LNET_EVENT_UNLINK;
-	lnet_md_deconstruct(md, &ev->md);
-	lnet_md2handle(&ev->md_handle, md);
-}
-
-/*
- * Don't need any lock, must be called after lnet_commit_md
- */
-void
-lnet_build_msg_event(lnet_msg_t *msg, lnet_event_kind_t ev_type)
-{
-	lnet_hdr_t *hdr = &msg->msg_hdr;
-	lnet_event_t *ev  = &msg->msg_ev;
-
-	LASSERT(!msg->msg_routing);
-
-	ev->type = ev_type;
-
-	if (ev_type == LNET_EVENT_SEND) {
-		/* event for active message */
-		ev->target.nid    = le64_to_cpu(hdr->dest_nid);
-		ev->target.pid    = le32_to_cpu(hdr->dest_pid);
-		ev->initiator.nid = LNET_NID_ANY;
-		ev->initiator.pid = the_lnet.ln_pid;
-		ev->sender        = LNET_NID_ANY;
-
-	} else {
-		/* event for passive message */
-		ev->target.pid    = hdr->dest_pid;
-		ev->target.nid    = hdr->dest_nid;
-		ev->initiator.pid = hdr->src_pid;
-		ev->initiator.nid = hdr->src_nid;
-		ev->rlength       = hdr->payload_length;
-		ev->sender        = msg->msg_from;
-		ev->mlength       = msg->msg_wanted;
-		ev->offset        = msg->msg_offset;
-	}
-
-	switch (ev_type) {
-	default:
-		LBUG();
-
-	case LNET_EVENT_PUT: /* passive PUT */
-		ev->pt_index   = hdr->msg.put.ptl_index;
-		ev->match_bits = hdr->msg.put.match_bits;
-		ev->hdr_data   = hdr->msg.put.hdr_data;
-		return;
-
-	case LNET_EVENT_GET: /* passive GET */
-		ev->pt_index   = hdr->msg.get.ptl_index;
-		ev->match_bits = hdr->msg.get.match_bits;
-		ev->hdr_data   = 0;
-		return;
-
-	case LNET_EVENT_ACK: /* ACK */
-		ev->match_bits = hdr->msg.ack.match_bits;
-		ev->mlength    = hdr->msg.ack.mlength;
-		return;
-
-	case LNET_EVENT_REPLY: /* REPLY */
-		return;
-
-	case LNET_EVENT_SEND: /* active message */
-		if (msg->msg_type == LNET_MSG_PUT) {
-			ev->pt_index   = le32_to_cpu(hdr->msg.put.ptl_index);
-			ev->match_bits = le64_to_cpu(hdr->msg.put.match_bits);
-			ev->offset     = le32_to_cpu(hdr->msg.put.offset);
-			ev->mlength    =
-			ev->rlength    = le32_to_cpu(hdr->payload_length);
-			ev->hdr_data   = le64_to_cpu(hdr->msg.put.hdr_data);
-
-		} else {
-			LASSERT(msg->msg_type == LNET_MSG_GET);
-			ev->pt_index   = le32_to_cpu(hdr->msg.get.ptl_index);
-			ev->match_bits = le64_to_cpu(hdr->msg.get.match_bits);
-			ev->mlength    =
-			ev->rlength    = le32_to_cpu(hdr->msg.get.sink_length);
-			ev->offset     = le32_to_cpu(hdr->msg.get.src_offset);
-			ev->hdr_data   = 0;
-		}
-		return;
-	}
-}
-
-void
-lnet_msg_commit(lnet_msg_t *msg, int cpt)
-{
-	struct lnet_msg_container *container = the_lnet.ln_msg_containers[cpt];
-	lnet_counters_t *counters  = the_lnet.ln_counters[cpt];
-
-	/* routed message can be committed for both receiving and sending */
-	LASSERT(!msg->msg_tx_committed);
-
-	if (msg->msg_sending) {
-		LASSERT(!msg->msg_receiving);
-
-		msg->msg_tx_cpt = cpt;
-		msg->msg_tx_committed = 1;
-		if (msg->msg_rx_committed) { /* routed message REPLY */
-			LASSERT(msg->msg_onactivelist);
-			return;
-		}
-	} else {
-		LASSERT(!msg->msg_sending);
-		msg->msg_rx_cpt = cpt;
-		msg->msg_rx_committed = 1;
-	}
-
-	LASSERT(!msg->msg_onactivelist);
-	msg->msg_onactivelist = 1;
-	list_add(&msg->msg_activelist, &container->msc_active);
-
-	counters->msgs_alloc++;
-	if (counters->msgs_alloc > counters->msgs_max)
-		counters->msgs_max = counters->msgs_alloc;
-}
-
-static void
-lnet_msg_decommit_tx(lnet_msg_t *msg, int status)
-{
-	lnet_counters_t	*counters;
-	lnet_event_t *ev = &msg->msg_ev;
-
-	LASSERT(msg->msg_tx_committed);
-	if (status != 0)
-		goto out;
-
-	counters = the_lnet.ln_counters[msg->msg_tx_cpt];
-	switch (ev->type) {
-	default: /* routed message */
-		LASSERT(msg->msg_routing);
-		LASSERT(msg->msg_rx_committed);
-		LASSERT(ev->type == 0);
-
-		counters->route_length += msg->msg_len;
-		counters->route_count++;
-		goto out;
-
-	case LNET_EVENT_PUT:
-		/* should have been decommitted */
-		LASSERT(!msg->msg_rx_committed);
-		/* overwritten while sending ACK */
-		LASSERT(msg->msg_type == LNET_MSG_ACK);
-		msg->msg_type = LNET_MSG_PUT; /* fix type */
-		break;
-
-	case LNET_EVENT_SEND:
-		LASSERT(!msg->msg_rx_committed);
-		if (msg->msg_type == LNET_MSG_PUT)
-			counters->send_length += msg->msg_len;
-		break;
-
-	case LNET_EVENT_GET:
-		LASSERT(msg->msg_rx_committed);
-		/* overwritten while sending reply, we should never be
-		 * here for optimized GET */
-		LASSERT(msg->msg_type == LNET_MSG_REPLY);
-		msg->msg_type = LNET_MSG_GET; /* fix type */
-		break;
-	}
-
-	counters->send_count++;
- out:
-	lnet_return_tx_credits_locked(msg);
-	msg->msg_tx_committed = 0;
-}
-
-static void
-lnet_msg_decommit_rx(lnet_msg_t *msg, int status)
-{
-	lnet_counters_t *counters;
-	lnet_event_t *ev = &msg->msg_ev;
-
-	LASSERT(!msg->msg_tx_committed); /* decommitted or never committed */
-	LASSERT(msg->msg_rx_committed);
-
-	if (status != 0)
-		goto out;
-
-	counters = the_lnet.ln_counters[msg->msg_rx_cpt];
-	switch (ev->type) {
-	default:
-		LASSERT(ev->type == 0);
-		LASSERT(msg->msg_routing);
-		goto out;
-
-	case LNET_EVENT_ACK:
-		LASSERT(msg->msg_type == LNET_MSG_ACK);
-		break;
-
-	case LNET_EVENT_GET:
-		/* type is "REPLY" if it's an optimized GET on passive side,
-		 * because optimized GET will never be committed for sending,
-		 * so message type wouldn't be changed back to "GET" by
-		 * lnet_msg_decommit_tx(), see details in lnet_parse_get() */
-		LASSERT(msg->msg_type == LNET_MSG_REPLY ||
-			msg->msg_type == LNET_MSG_GET);
-		counters->send_length += msg->msg_wanted;
-		break;
-
-	case LNET_EVENT_PUT:
-		LASSERT(msg->msg_type == LNET_MSG_PUT);
-		break;
-
-	case LNET_EVENT_REPLY:
-		/* type is "GET" if it's an optimized GET on active side,
-		 * see details in lnet_create_reply_msg() */
-		LASSERT(msg->msg_type == LNET_MSG_GET ||
-			msg->msg_type == LNET_MSG_REPLY);
-		break;
-	}
-
-	counters->recv_count++;
-	if (ev->type == LNET_EVENT_PUT || ev->type == LNET_EVENT_REPLY)
-		counters->recv_length += msg->msg_wanted;
-
- out:
-	lnet_return_rx_credits_locked(msg);
-	msg->msg_rx_committed = 0;
-}
-
-void
-lnet_msg_decommit(lnet_msg_t *msg, int cpt, int status)
-{
-	int cpt2 = cpt;
-
-	LASSERT(msg->msg_tx_committed || msg->msg_rx_committed);
-	LASSERT(msg->msg_onactivelist);
-
-	if (msg->msg_tx_committed) { /* always decommit for sending first */
-		LASSERT(cpt == msg->msg_tx_cpt);
-		lnet_msg_decommit_tx(msg, status);
-	}
-
-	if (msg->msg_rx_committed) {
-		/* forwarding msg committed for both receiving and sending */
-		if (cpt != msg->msg_rx_cpt) {
-			lnet_net_unlock(cpt);
-			cpt2 = msg->msg_rx_cpt;
-			lnet_net_lock(cpt2);
-		}
-		lnet_msg_decommit_rx(msg, status);
-	}
-
-	list_del(&msg->msg_activelist);
-	msg->msg_onactivelist = 0;
-
-	the_lnet.ln_counters[cpt2]->msgs_alloc--;
-
-	if (cpt2 != cpt) {
-		lnet_net_unlock(cpt2);
-		lnet_net_lock(cpt);
-	}
-}
-
-void
-lnet_msg_attach_md(lnet_msg_t *msg, lnet_libmd_t *md,
-		   unsigned int offset, unsigned int mlen)
-{
-	/* NB: @offset and @len are only useful for receiving */
-	/* Here, we attach the MD on lnet_msg and mark it busy and
-	 * decrementing its threshold. Come what may, the lnet_msg "owns"
-	 * the MD until a call to lnet_msg_detach_md or lnet_finalize()
-	 * signals completion. */
-	LASSERT(!msg->msg_routing);
-
-	msg->msg_md = md;
-	if (msg->msg_receiving) { /* committed for receiving */
-		msg->msg_offset = offset;
-		msg->msg_wanted = mlen;
-	}
-
-	md->md_refcount++;
-	if (md->md_threshold != LNET_MD_THRESH_INF) {
-		LASSERT(md->md_threshold > 0);
-		md->md_threshold--;
-	}
-
-	/* build umd in event */
-	lnet_md2handle(&msg->msg_ev.md_handle, md);
-	lnet_md_deconstruct(md, &msg->msg_ev.md);
-}
-
-void
-lnet_msg_detach_md(lnet_msg_t *msg, int status)
-{
-	lnet_libmd_t *md = msg->msg_md;
-	int unlink;
-
-	/* Now it's safe to drop my caller's ref */
-	md->md_refcount--;
-	LASSERT(md->md_refcount >= 0);
-
-	unlink = lnet_md_unlinkable(md);
-	if (md->md_eq != NULL) {
-		msg->msg_ev.status   = status;
-		msg->msg_ev.unlinked = unlink;
-		lnet_eq_enqueue_event(md->md_eq, &msg->msg_ev);
-	}
-
-	if (unlink)
-		lnet_md_unlink(md);
-
-	msg->msg_md = NULL;
-}
-
-static int
-lnet_complete_msg_locked(lnet_msg_t *msg, int cpt)
-{
-	lnet_handle_wire_t ack_wmd;
-	int rc;
-	int status = msg->msg_ev.status;
-
-	LASSERT(msg->msg_onactivelist);
-
-	if (status == 0 && msg->msg_ack) {
-		/* Only send an ACK if the PUT completed successfully */
-
-		lnet_msg_decommit(msg, cpt, 0);
-
-		msg->msg_ack = 0;
-		lnet_net_unlock(cpt);
-
-		LASSERT(msg->msg_ev.type == LNET_EVENT_PUT);
-		LASSERT(!msg->msg_routing);
-
-		ack_wmd = msg->msg_hdr.msg.put.ack_wmd;
-
-		lnet_prep_send(msg, LNET_MSG_ACK, msg->msg_ev.initiator, 0, 0);
-
-		msg->msg_hdr.msg.ack.dst_wmd = ack_wmd;
-		msg->msg_hdr.msg.ack.match_bits = msg->msg_ev.match_bits;
-		msg->msg_hdr.msg.ack.mlength = cpu_to_le32(msg->msg_ev.mlength);
-
-		/* NB: we probably want to use NID of msg::msg_from as 3rd
-		 * parameter (router NID) if it's routed message */
-		rc = lnet_send(msg->msg_ev.target.nid, msg, LNET_NID_ANY);
-
-		lnet_net_lock(cpt);
-		/*
-		 * NB: message is committed for sending, we should return
-		 * on success because LND will finalize this message later.
-		 *
-		 * Also, there is possibility that message is committed for
-		 * sending and also failed before delivering to LND,
-		 * i.e: ENOMEM, in that case we can't fall through either
-		 * because CPT for sending can be different with CPT for
-		 * receiving, so we should return back to lnet_finalize()
-		 * to make sure we are locking the correct partition.
-		 */
-		return rc;
-
-	} else if (status == 0 &&	/* OK so far */
-		   (msg->msg_routing && !msg->msg_sending)) {
-		/* not forwarded */
-		LASSERT(!msg->msg_receiving);	/* called back recv already */
-		lnet_net_unlock(cpt);
-
-		rc = lnet_send(LNET_NID_ANY, msg, LNET_NID_ANY);
-
-		lnet_net_lock(cpt);
-		/*
-		 * NB: message is committed for sending, we should return
-		 * on success because LND will finalize this message later.
-		 *
-		 * Also, there is possibility that message is committed for
-		 * sending and also failed before delivering to LND,
-		 * i.e: ENOMEM, in that case we can't fall through either:
-		 * - The rule is message must decommit for sending first if
-		 *   the it's committed for both sending and receiving
-		 * - CPT for sending can be different with CPT for receiving,
-		 *   so we should return back to lnet_finalize() to make
-		 *   sure we are locking the correct partition.
-		 */
-		return rc;
-	}
-
-	lnet_msg_decommit(msg, cpt, status);
-	lnet_msg_free(msg);
-	return 0;
-}
-
-void
-lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int status)
-{
-	struct lnet_msg_container *container;
-	int my_slot;
-	int cpt;
-	int rc;
-	int i;
-
-	LASSERT(!in_interrupt());
-
-	if (msg == NULL)
-		return;
-#if 0
-	CDEBUG(D_WARNING, "%s msg->%s Flags:%s%s%s%s%s%s%s%s%s%s%s txp %s rxp %s\n",
-	       lnet_msgtyp2str(msg->msg_type), libcfs_id2str(msg->msg_target),
-	       msg->msg_target_is_router ? "t" : "",
-	       msg->msg_routing ? "X" : "",
-	       msg->msg_ack ? "A" : "",
-	       msg->msg_sending ? "S" : "",
-	       msg->msg_receiving ? "R" : "",
-	       msg->msg_delayed ? "d" : "",
-	       msg->msg_txcredit ? "C" : "",
-	       msg->msg_peertxcredit ? "c" : "",
-	       msg->msg_rtrcredit ? "F" : "",
-	       msg->msg_peerrtrcredit ? "f" : "",
-	       msg->msg_onactivelist ? "!" : "",
-	       msg->msg_txpeer == NULL ? "<none>" : libcfs_nid2str(msg->msg_txpeer->lp_nid),
-	       msg->msg_rxpeer == NULL ? "<none>" : libcfs_nid2str(msg->msg_rxpeer->lp_nid));
-#endif
-	msg->msg_ev.status = status;
-
-	if (msg->msg_md != NULL) {
-		cpt = lnet_cpt_of_cookie(msg->msg_md->md_lh.lh_cookie);
-
-		lnet_res_lock(cpt);
-		lnet_msg_detach_md(msg, status);
-		lnet_res_unlock(cpt);
-	}
-
- again:
-	rc = 0;
-	if (!msg->msg_tx_committed && !msg->msg_rx_committed) {
-		/* not committed to network yet */
-		LASSERT(!msg->msg_onactivelist);
-		lnet_msg_free(msg);
-		return;
-	}
-
-	/*
-	 * NB: routed message can be committed for both receiving and sending,
-	 * we should finalize in LIFO order and keep counters correct.
-	 * (finalize sending first then finalize receiving)
-	 */
-	cpt = msg->msg_tx_committed ? msg->msg_tx_cpt : msg->msg_rx_cpt;
-	lnet_net_lock(cpt);
-
-	container = the_lnet.ln_msg_containers[cpt];
-	list_add_tail(&msg->msg_list, &container->msc_finalizing);
-
-	/* Recursion breaker.  Don't complete the message here if I am (or
-	 * enough other threads are) already completing messages */
-
-	my_slot = -1;
-	for (i = 0; i < container->msc_nfinalizers; i++) {
-		if (container->msc_finalizers[i] == current)
-			break;
-
-		if (my_slot < 0 && container->msc_finalizers[i] == NULL)
-			my_slot = i;
-	}
-
-	if (i < container->msc_nfinalizers || my_slot < 0) {
-		lnet_net_unlock(cpt);
-		return;
-	}
-
-	container->msc_finalizers[my_slot] = current;
-
-	while (!list_empty(&container->msc_finalizing)) {
-		msg = list_entry(container->msc_finalizing.next,
-				     lnet_msg_t, msg_list);
-
-		list_del(&msg->msg_list);
-
-		/* NB drops and regains the lnet lock if it actually does
-		 * anything, so my finalizing friends can chomp along too */
-		rc = lnet_complete_msg_locked(msg, cpt);
-		if (rc != 0)
-			break;
-	}
-
-	container->msc_finalizers[my_slot] = NULL;
-	lnet_net_unlock(cpt);
-
-	if (rc != 0)
-		goto again;
-}
-EXPORT_SYMBOL(lnet_finalize);
-
-void
-lnet_msg_container_cleanup(struct lnet_msg_container *container)
-{
-	int count = 0;
-
-	if (container->msc_init == 0)
-		return;
-
-	while (!list_empty(&container->msc_active)) {
-		lnet_msg_t *msg = list_entry(container->msc_active.next,
-						 lnet_msg_t, msg_activelist);
-
-		LASSERT(msg->msg_onactivelist);
-		msg->msg_onactivelist = 0;
-		list_del(&msg->msg_activelist);
-		lnet_msg_free(msg);
-		count++;
-	}
-
-	if (count > 0)
-		CERROR("%d active msg on exit\n", count);
-
-	if (container->msc_finalizers != NULL) {
-		LIBCFS_FREE(container->msc_finalizers,
-			    container->msc_nfinalizers *
-			    sizeof(*container->msc_finalizers));
-		container->msc_finalizers = NULL;
-	}
-#ifdef LNET_USE_LIB_FREELIST
-	lnet_freelist_fini(&container->msc_freelist);
-#endif
-	container->msc_init = 0;
-}
-
-int
-lnet_msg_container_setup(struct lnet_msg_container *container, int cpt)
-{
-	int rc;
-
-	container->msc_init = 1;
-
-	INIT_LIST_HEAD(&container->msc_active);
-	INIT_LIST_HEAD(&container->msc_finalizing);
-
-#ifdef LNET_USE_LIB_FREELIST
-	memset(&container->msc_freelist, 0, sizeof(lnet_freelist_t));
-
-	rc = lnet_freelist_init(&container->msc_freelist,
-				LNET_FL_MAX_MSGS, sizeof(lnet_msg_t));
-	if (rc != 0) {
-		CERROR("Failed to init freelist for message container\n");
-		lnet_msg_container_cleanup(container);
-		return rc;
-	}
-#else
-	rc = 0;
-#endif
-	/* number of CPUs */
-	container->msc_nfinalizers = cfs_cpt_weight(lnet_cpt_table(), cpt);
-
-	LIBCFS_CPT_ALLOC(container->msc_finalizers, lnet_cpt_table(), cpt,
-			 container->msc_nfinalizers *
-			 sizeof(*container->msc_finalizers));
-
-	if (container->msc_finalizers == NULL) {
-		CERROR("Failed to allocate message finalizers\n");
-		lnet_msg_container_cleanup(container);
-		return -ENOMEM;
-	}
-
-	return rc;
-}
-
-void
-lnet_msg_containers_destroy(void)
-{
-	struct lnet_msg_container *container;
-	int i;
-
-	if (the_lnet.ln_msg_containers == NULL)
-		return;
-
-	cfs_percpt_for_each(container, i, the_lnet.ln_msg_containers)
-		lnet_msg_container_cleanup(container);
-
-	cfs_percpt_free(the_lnet.ln_msg_containers);
-	the_lnet.ln_msg_containers = NULL;
-}
-
-int
-lnet_msg_containers_create(void)
-{
-	struct lnet_msg_container *container;
-	int rc;
-	int i;
-
-	the_lnet.ln_msg_containers = cfs_percpt_alloc(lnet_cpt_table(),
-						      sizeof(*container));
-
-	if (the_lnet.ln_msg_containers == NULL) {
-		CERROR("Failed to allocate cpu-partition data for network\n");
-		return -ENOMEM;
-	}
-
-	cfs_percpt_for_each(container, i, the_lnet.ln_msg_containers) {
-		rc = lnet_msg_container_setup(container, i);
-		if (rc != 0) {
-			lnet_msg_containers_destroy();
-			return rc;
-		}
-	}
-
-	return 0;
-}
diff --git a/drivers/staging/lustre/lnet/lnet/lib-ptl.c b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
deleted file mode 100644
index 84707c5cb464..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lib-ptl.c
+++ /dev/null
@@ -1,935 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/lnet/lib-ptl.c
- *
- * portal & match routines
- *
- * Author: liang@whamcloud.com
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/lnet/lib-lnet.h"
-
-/* NB: add /proc interfaces in upcoming patches */
-int portal_rotor = LNET_PTL_ROTOR_HASH_RT;
-module_param(portal_rotor, int, 0644);
-MODULE_PARM_DESC(portal_rotor, "redirect PUTs to different cpu-partitions");
-
-static int
-lnet_ptl_match_type(unsigned int index, lnet_process_id_t match_id,
-		    __u64 mbits, __u64 ignore_bits)
-{
-	struct lnet_portal *ptl = the_lnet.ln_portals[index];
-	int unique;
-
-	unique = ignore_bits == 0 &&
-		 match_id.nid != LNET_NID_ANY &&
-		 match_id.pid != LNET_PID_ANY;
-
-	LASSERT(!lnet_ptl_is_unique(ptl) || !lnet_ptl_is_wildcard(ptl));
-
-	/* prefer to check w/o any lock */
-	if (likely(lnet_ptl_is_unique(ptl) || lnet_ptl_is_wildcard(ptl)))
-		goto match;
-
-	/* unset, new portal */
-	lnet_ptl_lock(ptl);
-	/* check again with lock */
-	if (unlikely(lnet_ptl_is_unique(ptl) || lnet_ptl_is_wildcard(ptl))) {
-		lnet_ptl_unlock(ptl);
-		goto match;
-	}
-
-	/* still not set */
-	if (unique)
-		lnet_ptl_setopt(ptl, LNET_PTL_MATCH_UNIQUE);
-	else
-		lnet_ptl_setopt(ptl, LNET_PTL_MATCH_WILDCARD);
-
-	lnet_ptl_unlock(ptl);
-
-	return 1;
-
- match:
-	if ((lnet_ptl_is_unique(ptl) && !unique) ||
-	    (lnet_ptl_is_wildcard(ptl) && unique))
-		return 0;
-	return 1;
-}
-
-static void
-lnet_ptl_enable_mt(struct lnet_portal *ptl, int cpt)
-{
-	struct lnet_match_table	*mtable = ptl->ptl_mtables[cpt];
-	int i;
-
-	/* with hold of both lnet_res_lock(cpt) and lnet_ptl_lock */
-	LASSERT(lnet_ptl_is_wildcard(ptl));
-
-	mtable->mt_enabled = 1;
-
-	ptl->ptl_mt_maps[ptl->ptl_mt_nmaps] = cpt;
-	for (i = ptl->ptl_mt_nmaps - 1; i >= 0; i--) {
-		LASSERT(ptl->ptl_mt_maps[i] != cpt);
-		if (ptl->ptl_mt_maps[i] < cpt)
-			break;
-
-		/* swap to order */
-		ptl->ptl_mt_maps[i + 1] = ptl->ptl_mt_maps[i];
-		ptl->ptl_mt_maps[i] = cpt;
-	}
-
-	ptl->ptl_mt_nmaps++;
-}
-
-static void
-lnet_ptl_disable_mt(struct lnet_portal *ptl, int cpt)
-{
-	struct lnet_match_table	*mtable = ptl->ptl_mtables[cpt];
-	int i;
-
-	/* with hold of both lnet_res_lock(cpt) and lnet_ptl_lock */
-	LASSERT(lnet_ptl_is_wildcard(ptl));
-
-	if (LNET_CPT_NUMBER == 1)
-		return; /* never disable the only match-table */
-
-	mtable->mt_enabled = 0;
-
-	LASSERT(ptl->ptl_mt_nmaps > 0 &&
-		ptl->ptl_mt_nmaps <= LNET_CPT_NUMBER);
-
-	/* remove it from mt_maps */
-	ptl->ptl_mt_nmaps--;
-	for (i = 0; i < ptl->ptl_mt_nmaps; i++) {
-		if (ptl->ptl_mt_maps[i] >= cpt) /* overwrite it */
-			ptl->ptl_mt_maps[i] = ptl->ptl_mt_maps[i + 1];
-	}
-}
-
-static int
-lnet_try_match_md(lnet_libmd_t *md,
-		  struct lnet_match_info *info, struct lnet_msg *msg)
-{
-	/* ALWAYS called holding the lnet_res_lock, and can't lnet_res_unlock;
-	 * lnet_match_blocked_msg() relies on this to avoid races */
-	unsigned int offset;
-	unsigned int mlength;
-	lnet_me_t *me = md->md_me;
-
-	/* MD exhausted */
-	if (lnet_md_exhausted(md))
-		return LNET_MATCHMD_NONE | LNET_MATCHMD_EXHAUSTED;
-
-	/* mismatched MD op */
-	if ((md->md_options & info->mi_opc) == 0)
-		return LNET_MATCHMD_NONE;
-
-	/* mismatched ME nid/pid? */
-	if (me->me_match_id.nid != LNET_NID_ANY &&
-	    me->me_match_id.nid != info->mi_id.nid)
-		return LNET_MATCHMD_NONE;
-
-	if (me->me_match_id.pid != LNET_PID_ANY &&
-	    me->me_match_id.pid != info->mi_id.pid)
-		return LNET_MATCHMD_NONE;
-
-	/* mismatched ME matchbits? */
-	if (((me->me_match_bits ^ info->mi_mbits) & ~me->me_ignore_bits) != 0)
-		return LNET_MATCHMD_NONE;
-
-	/* Hurrah! This _is_ a match; check it out... */
-
-	if ((md->md_options & LNET_MD_MANAGE_REMOTE) == 0)
-		offset = md->md_offset;
-	else
-		offset = info->mi_roffset;
-
-	if ((md->md_options & LNET_MD_MAX_SIZE) != 0) {
-		mlength = md->md_max_size;
-		LASSERT(md->md_offset + mlength <= md->md_length);
-	} else {
-		mlength = md->md_length - offset;
-	}
-
-	if (info->mi_rlength <= mlength) {	/* fits in allowed space */
-		mlength = info->mi_rlength;
-	} else if ((md->md_options & LNET_MD_TRUNCATE) == 0) {
-		/* this packet _really_ is too big */
-		CERROR("Matching packet from %s, match %llu length %d too big: %d left, %d allowed\n",
-		       libcfs_id2str(info->mi_id), info->mi_mbits,
-		       info->mi_rlength, md->md_length - offset, mlength);
-
-		return LNET_MATCHMD_DROP;
-	}
-
-	/* Commit to this ME/MD */
-	CDEBUG(D_NET, "Incoming %s index %x from %s of length %d/%d into md %#llx [%d] + %d\n",
-	       (info->mi_opc == LNET_MD_OP_PUT) ? "put" : "get",
-	       info->mi_portal, libcfs_id2str(info->mi_id), mlength,
-	       info->mi_rlength, md->md_lh.lh_cookie, md->md_niov, offset);
-
-	lnet_msg_attach_md(msg, md, offset, mlength);
-	md->md_offset = offset + mlength;
-
-	if (!lnet_md_exhausted(md))
-		return LNET_MATCHMD_OK;
-
-	/* Auto-unlink NOW, so the ME gets unlinked if required.
-	 * We bumped md->md_refcount above so the MD just gets flagged
-	 * for unlink when it is finalized. */
-	if ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) != 0)
-		lnet_md_unlink(md);
-
-	return LNET_MATCHMD_OK | LNET_MATCHMD_EXHAUSTED;
-}
-
-static struct lnet_match_table *
-lnet_match2mt(struct lnet_portal *ptl, lnet_process_id_t id, __u64 mbits)
-{
-	if (LNET_CPT_NUMBER == 1)
-		return ptl->ptl_mtables[0]; /* the only one */
-
-	/* if it's a unique portal, return match-table hashed by NID */
-	return lnet_ptl_is_unique(ptl) ?
-	       ptl->ptl_mtables[lnet_cpt_of_nid(id.nid)] : NULL;
-}
-
-struct lnet_match_table *
-lnet_mt_of_attach(unsigned int index, lnet_process_id_t id,
-		  __u64 mbits, __u64 ignore_bits, lnet_ins_pos_t pos)
-{
-	struct lnet_portal *ptl;
-	struct lnet_match_table	*mtable;
-
-	/* NB: called w/o lock */
-	LASSERT(index < the_lnet.ln_nportals);
-
-	if (!lnet_ptl_match_type(index, id, mbits, ignore_bits))
-		return NULL;
-
-	ptl = the_lnet.ln_portals[index];
-
-	mtable = lnet_match2mt(ptl, id, mbits);
-	if (mtable != NULL) /* unique portal or only one match-table */
-		return mtable;
-
-	/* it's a wildcard portal */
-	switch (pos) {
-	default:
-		return NULL;
-	case LNET_INS_BEFORE:
-	case LNET_INS_AFTER:
-		/* posted by no affinity thread, always hash to specific
-		 * match-table to avoid buffer stealing which is heavy */
-		return ptl->ptl_mtables[ptl->ptl_index % LNET_CPT_NUMBER];
-	case LNET_INS_LOCAL:
-		/* posted by cpu-affinity thread */
-		return ptl->ptl_mtables[lnet_cpt_current()];
-	}
-}
-
-static struct lnet_match_table *
-lnet_mt_of_match(struct lnet_match_info *info, struct lnet_msg *msg)
-{
-	struct lnet_match_table	*mtable;
-	struct lnet_portal *ptl;
-	unsigned int nmaps;
-	unsigned int rotor;
-	unsigned int cpt;
-	bool routed;
-
-	/* NB: called w/o lock */
-	LASSERT(info->mi_portal < the_lnet.ln_nportals);
-	ptl = the_lnet.ln_portals[info->mi_portal];
-
-	LASSERT(lnet_ptl_is_wildcard(ptl) || lnet_ptl_is_unique(ptl));
-
-	mtable = lnet_match2mt(ptl, info->mi_id, info->mi_mbits);
-	if (mtable != NULL)
-		return mtable;
-
-	/* it's a wildcard portal */
-	routed = LNET_NIDNET(msg->msg_hdr.src_nid) !=
-		 LNET_NIDNET(msg->msg_hdr.dest_nid);
-
-	if (portal_rotor == LNET_PTL_ROTOR_OFF ||
-	    (portal_rotor != LNET_PTL_ROTOR_ON && !routed)) {
-		cpt = lnet_cpt_current();
-		if (ptl->ptl_mtables[cpt]->mt_enabled)
-			return ptl->ptl_mtables[cpt];
-	}
-
-	rotor = ptl->ptl_rotor++; /* get round-robin factor */
-	if (portal_rotor == LNET_PTL_ROTOR_HASH_RT && routed)
-		cpt = lnet_cpt_of_nid(msg->msg_hdr.src_nid);
-	else
-		cpt = rotor % LNET_CPT_NUMBER;
-
-	if (!ptl->ptl_mtables[cpt]->mt_enabled) {
-		/* is there any active entry for this portal? */
-		nmaps = ptl->ptl_mt_nmaps;
-		/* map to an active mtable to avoid heavy "stealing" */
-		if (nmaps != 0) {
-			/* NB: there is possibility that ptl_mt_maps is being
-			 * changed because we are not under protection of
-			 * lnet_ptl_lock, but it shouldn't hurt anything */
-			cpt = ptl->ptl_mt_maps[rotor % nmaps];
-		}
-	}
-
-	return ptl->ptl_mtables[cpt];
-}
-
-static int
-lnet_mt_test_exhausted(struct lnet_match_table *mtable, int pos)
-{
-	__u64 *bmap;
-	int i;
-
-	if (!lnet_ptl_is_wildcard(the_lnet.ln_portals[mtable->mt_portal]))
-		return 0;
-
-	if (pos < 0) { /* check all bits */
-		for (i = 0; i < LNET_MT_EXHAUSTED_BMAP; i++) {
-			if (mtable->mt_exhausted[i] != (__u64)(-1))
-				return 0;
-		}
-		return 1;
-	}
-
-	LASSERT(pos <= LNET_MT_HASH_IGNORE);
-	/* mtable::mt_mhash[pos] is marked as exhausted or not */
-	bmap = &mtable->mt_exhausted[pos >> LNET_MT_BITS_U64];
-	pos &= (1 << LNET_MT_BITS_U64) - 1;
-
-	return ((*bmap) & (1ULL << pos)) != 0;
-}
-
-static void
-lnet_mt_set_exhausted(struct lnet_match_table *mtable, int pos, int exhausted)
-{
-	__u64 *bmap;
-
-	LASSERT(lnet_ptl_is_wildcard(the_lnet.ln_portals[mtable->mt_portal]));
-	LASSERT(pos <= LNET_MT_HASH_IGNORE);
-
-	/* set mtable::mt_mhash[pos] as exhausted/non-exhausted */
-	bmap = &mtable->mt_exhausted[pos >> LNET_MT_BITS_U64];
-	pos &= (1 << LNET_MT_BITS_U64) - 1;
-
-	if (!exhausted)
-		*bmap &= ~(1ULL << pos);
-	else
-		*bmap |= 1ULL << pos;
-}
-
-struct list_head *
-lnet_mt_match_head(struct lnet_match_table *mtable,
-		   lnet_process_id_t id, __u64 mbits)
-{
-	struct lnet_portal *ptl = the_lnet.ln_portals[mtable->mt_portal];
-
-	if (lnet_ptl_is_wildcard(ptl)) {
-		return &mtable->mt_mhash[mbits & LNET_MT_HASH_MASK];
-	} else {
-		unsigned long hash = mbits + id.nid + id.pid;
-
-		LASSERT(lnet_ptl_is_unique(ptl));
-		hash = hash_long(hash, LNET_MT_HASH_BITS);
-		return &mtable->mt_mhash[hash];
-	}
-}
-
-int
-lnet_mt_match_md(struct lnet_match_table *mtable,
-		 struct lnet_match_info *info, struct lnet_msg *msg)
-{
-	struct list_head *head;
-	lnet_me_t *me;
-	lnet_me_t *tmp;
-	int exhausted = 0;
-	int rc;
-
-	/* any ME with ignore bits? */
-	if (!list_empty(&mtable->mt_mhash[LNET_MT_HASH_IGNORE]))
-		head = &mtable->mt_mhash[LNET_MT_HASH_IGNORE];
-	else
-		head = lnet_mt_match_head(mtable, info->mi_id, info->mi_mbits);
- again:
-	/* NB: only wildcard portal needs to return LNET_MATCHMD_EXHAUSTED */
-	if (lnet_ptl_is_wildcard(the_lnet.ln_portals[mtable->mt_portal]))
-		exhausted = LNET_MATCHMD_EXHAUSTED;
-
-	list_for_each_entry_safe(me, tmp, head, me_list) {
-		/* ME attached but MD not attached yet */
-		if (me->me_md == NULL)
-			continue;
-
-		LASSERT(me == me->me_md->md_me);
-
-		rc = lnet_try_match_md(me->me_md, info, msg);
-		if ((rc & LNET_MATCHMD_EXHAUSTED) == 0)
-			exhausted = 0; /* mlist is not empty */
-
-		if ((rc & LNET_MATCHMD_FINISH) != 0) {
-			/* don't return EXHAUSTED bit because we don't know
-			 * whether the mlist is empty or not */
-			return rc & ~LNET_MATCHMD_EXHAUSTED;
-		}
-	}
-
-	if (exhausted == LNET_MATCHMD_EXHAUSTED) { /* @head is exhausted */
-		lnet_mt_set_exhausted(mtable, head - mtable->mt_mhash, 1);
-		if (!lnet_mt_test_exhausted(mtable, -1))
-			exhausted = 0;
-	}
-
-	if (exhausted == 0 && head == &mtable->mt_mhash[LNET_MT_HASH_IGNORE]) {
-		head = lnet_mt_match_head(mtable, info->mi_id, info->mi_mbits);
-		goto again; /* re-check MEs w/o ignore-bits */
-	}
-
-	if (info->mi_opc == LNET_MD_OP_GET ||
-	    !lnet_ptl_is_lazy(the_lnet.ln_portals[info->mi_portal]))
-		return LNET_MATCHMD_DROP | exhausted;
-
-	return LNET_MATCHMD_NONE | exhausted;
-}
-
-static int
-lnet_ptl_match_early(struct lnet_portal *ptl, struct lnet_msg *msg)
-{
-	int rc;
-
-	/* message arrived before any buffer posting on this portal,
-	 * simply delay or drop this message */
-	if (likely(lnet_ptl_is_wildcard(ptl) || lnet_ptl_is_unique(ptl)))
-		return 0;
-
-	lnet_ptl_lock(ptl);
-	/* check it again with hold of lock */
-	if (lnet_ptl_is_wildcard(ptl) || lnet_ptl_is_unique(ptl)) {
-		lnet_ptl_unlock(ptl);
-		return 0;
-	}
-
-	if (lnet_ptl_is_lazy(ptl)) {
-		if (msg->msg_rx_ready_delay) {
-			msg->msg_rx_delayed = 1;
-			list_add_tail(&msg->msg_list,
-					  &ptl->ptl_msg_delayed);
-		}
-		rc = LNET_MATCHMD_NONE;
-	} else {
-		rc = LNET_MATCHMD_DROP;
-	}
-
-	lnet_ptl_unlock(ptl);
-	return rc;
-}
-
-static int
-lnet_ptl_match_delay(struct lnet_portal *ptl,
-		     struct lnet_match_info *info, struct lnet_msg *msg)
-{
-	int first = ptl->ptl_mt_maps[0]; /* read w/o lock */
-	int rc = 0;
-	int i;
-
-	/* steal buffer from other CPTs, and delay it if nothing to steal,
-	 * this function is more expensive than a regular match, but we
-	 * don't expect it can happen a lot */
-	LASSERT(lnet_ptl_is_wildcard(ptl));
-
-	for (i = 0; i < LNET_CPT_NUMBER; i++) {
-		struct lnet_match_table *mtable;
-		int cpt;
-
-		cpt = (first + i) % LNET_CPT_NUMBER;
-		mtable = ptl->ptl_mtables[cpt];
-		if (i != 0 && i != LNET_CPT_NUMBER - 1 && !mtable->mt_enabled)
-			continue;
-
-		lnet_res_lock(cpt);
-		lnet_ptl_lock(ptl);
-
-		if (i == 0) { /* the first try, attach on stealing list */
-			list_add_tail(&msg->msg_list,
-					  &ptl->ptl_msg_stealing);
-		}
-
-		if (!list_empty(&msg->msg_list)) { /* on stealing list */
-			rc = lnet_mt_match_md(mtable, info, msg);
-
-			if ((rc & LNET_MATCHMD_EXHAUSTED) != 0 &&
-			    mtable->mt_enabled)
-				lnet_ptl_disable_mt(ptl, cpt);
-
-			if ((rc & LNET_MATCHMD_FINISH) != 0)
-				list_del_init(&msg->msg_list);
-
-		} else {
-			/* could be matched by lnet_ptl_attach_md()
-			 * which is called by another thread */
-			rc = msg->msg_md == NULL ?
-			     LNET_MATCHMD_DROP : LNET_MATCHMD_OK;
-		}
-
-		if (!list_empty(&msg->msg_list) && /* not matched yet */
-		    (i == LNET_CPT_NUMBER - 1 || /* the last CPT */
-		     ptl->ptl_mt_nmaps == 0 ||   /* no active CPT */
-		     (ptl->ptl_mt_nmaps == 1 &&  /* the only active CPT */
-		      ptl->ptl_mt_maps[0] == cpt))) {
-			/* nothing to steal, delay or drop */
-			list_del_init(&msg->msg_list);
-
-			if (lnet_ptl_is_lazy(ptl)) {
-				msg->msg_rx_delayed = 1;
-				list_add_tail(&msg->msg_list,
-						  &ptl->ptl_msg_delayed);
-				rc = LNET_MATCHMD_NONE;
-			} else {
-				rc = LNET_MATCHMD_DROP;
-			}
-		}
-
-		lnet_ptl_unlock(ptl);
-		lnet_res_unlock(cpt);
-
-		if ((rc & LNET_MATCHMD_FINISH) != 0 || msg->msg_rx_delayed)
-			break;
-	}
-
-	return rc;
-}
-
-int
-lnet_ptl_match_md(struct lnet_match_info *info, struct lnet_msg *msg)
-{
-	struct lnet_match_table	*mtable;
-	struct lnet_portal *ptl;
-	int rc;
-
-	CDEBUG(D_NET, "Request from %s of length %d into portal %d MB=%#llx\n",
-	       libcfs_id2str(info->mi_id), info->mi_rlength, info->mi_portal,
-	       info->mi_mbits);
-
-	if (info->mi_portal >= the_lnet.ln_nportals) {
-		CERROR("Invalid portal %d not in [0-%d]\n",
-		       info->mi_portal, the_lnet.ln_nportals);
-		return LNET_MATCHMD_DROP;
-	}
-
-	ptl = the_lnet.ln_portals[info->mi_portal];
-	rc = lnet_ptl_match_early(ptl, msg);
-	if (rc != 0) /* matched or delayed early message */
-		return rc;
-
-	mtable = lnet_mt_of_match(info, msg);
-	lnet_res_lock(mtable->mt_cpt);
-
-	if (the_lnet.ln_shutdown) {
-		rc = LNET_MATCHMD_DROP;
-		goto out1;
-	}
-
-	rc = lnet_mt_match_md(mtable, info, msg);
-	if ((rc & LNET_MATCHMD_EXHAUSTED) != 0 && mtable->mt_enabled) {
-		lnet_ptl_lock(ptl);
-		lnet_ptl_disable_mt(ptl, mtable->mt_cpt);
-		lnet_ptl_unlock(ptl);
-	}
-
-	if ((rc & LNET_MATCHMD_FINISH) != 0)	/* matched or dropping */
-		goto out1;
-
-	if (!msg->msg_rx_ready_delay)
-		goto out1;
-
-	LASSERT(lnet_ptl_is_lazy(ptl));
-	LASSERT(!msg->msg_rx_delayed);
-
-	/* NB: we don't expect "delay" can happen a lot */
-	if (lnet_ptl_is_unique(ptl) || LNET_CPT_NUMBER == 1) {
-		lnet_ptl_lock(ptl);
-
-		msg->msg_rx_delayed = 1;
-		list_add_tail(&msg->msg_list, &ptl->ptl_msg_delayed);
-
-		lnet_ptl_unlock(ptl);
-		lnet_res_unlock(mtable->mt_cpt);
-
-	} else  {
-		lnet_res_unlock(mtable->mt_cpt);
-		rc = lnet_ptl_match_delay(ptl, info, msg);
-	}
-
-	if (msg->msg_rx_delayed) {
-		CDEBUG(D_NET,
-		       "Delaying %s from %s ptl %d MB %#llx off %d len %d\n",
-		       info->mi_opc == LNET_MD_OP_PUT ? "PUT" : "GET",
-		       libcfs_id2str(info->mi_id), info->mi_portal,
-		       info->mi_mbits, info->mi_roffset, info->mi_rlength);
-	}
-	goto out0;
- out1:
-	lnet_res_unlock(mtable->mt_cpt);
- out0:
-	/* EXHAUSTED bit is only meaningful for internal functions */
-	return rc & ~LNET_MATCHMD_EXHAUSTED;
-}
-
-void
-lnet_ptl_detach_md(lnet_me_t *me, lnet_libmd_t *md)
-{
-	LASSERT(me->me_md == md && md->md_me == me);
-
-	me->me_md = NULL;
-	md->md_me = NULL;
-}
-
-/* called with lnet_res_lock held */
-void
-lnet_ptl_attach_md(lnet_me_t *me, lnet_libmd_t *md,
-		   struct list_head *matches, struct list_head *drops)
-{
-	struct lnet_portal *ptl = the_lnet.ln_portals[me->me_portal];
-	struct lnet_match_table	*mtable;
-	struct list_head *head;
-	lnet_msg_t *tmp;
-	lnet_msg_t *msg;
-	int exhausted = 0;
-	int cpt;
-
-	LASSERT(md->md_refcount == 0); /* a brand new MD */
-
-	me->me_md = md;
-	md->md_me = me;
-
-	cpt = lnet_cpt_of_cookie(md->md_lh.lh_cookie);
-	mtable = ptl->ptl_mtables[cpt];
-
-	if (list_empty(&ptl->ptl_msg_stealing) &&
-	    list_empty(&ptl->ptl_msg_delayed) &&
-	    !lnet_mt_test_exhausted(mtable, me->me_pos))
-		return;
-
-	lnet_ptl_lock(ptl);
-	head = &ptl->ptl_msg_stealing;
- again:
-	list_for_each_entry_safe(msg, tmp, head, msg_list) {
-		struct lnet_match_info info;
-		lnet_hdr_t *hdr;
-		int rc;
-
-		LASSERT(msg->msg_rx_delayed || head == &ptl->ptl_msg_stealing);
-
-		hdr = &msg->msg_hdr;
-		info.mi_id.nid  = hdr->src_nid;
-		info.mi_id.pid  = hdr->src_pid;
-		info.mi_opc     = LNET_MD_OP_PUT;
-		info.mi_portal  = hdr->msg.put.ptl_index;
-		info.mi_rlength = hdr->payload_length;
-		info.mi_roffset = hdr->msg.put.offset;
-		info.mi_mbits   = hdr->msg.put.match_bits;
-
-		rc = lnet_try_match_md(md, &info, msg);
-
-		exhausted = (rc & LNET_MATCHMD_EXHAUSTED) != 0;
-		if ((rc & LNET_MATCHMD_NONE) != 0) {
-			if (exhausted)
-				break;
-			continue;
-		}
-
-		/* Hurrah! This _is_ a match */
-		LASSERT((rc & LNET_MATCHMD_FINISH) != 0);
-		list_del_init(&msg->msg_list);
-
-		if (head == &ptl->ptl_msg_stealing) {
-			if (exhausted)
-				break;
-			/* stealing thread will handle the message */
-			continue;
-		}
-
-		if ((rc & LNET_MATCHMD_OK) != 0) {
-			list_add_tail(&msg->msg_list, matches);
-
-			CDEBUG(D_NET, "Resuming delayed PUT from %s portal %d match %llu offset %d length %d.\n",
-			       libcfs_id2str(info.mi_id),
-			       info.mi_portal, info.mi_mbits,
-			       info.mi_roffset, info.mi_rlength);
-		} else {
-			list_add_tail(&msg->msg_list, drops);
-		}
-
-		if (exhausted)
-			break;
-	}
-
-	if (!exhausted && head == &ptl->ptl_msg_stealing) {
-		head = &ptl->ptl_msg_delayed;
-		goto again;
-	}
-
-	if (lnet_ptl_is_wildcard(ptl) && !exhausted) {
-		lnet_mt_set_exhausted(mtable, me->me_pos, 0);
-		if (!mtable->mt_enabled)
-			lnet_ptl_enable_mt(ptl, cpt);
-	}
-
-	lnet_ptl_unlock(ptl);
-}
-
-static void
-lnet_ptl_cleanup(struct lnet_portal *ptl)
-{
-	struct lnet_match_table	*mtable;
-	int i;
-
-	if (ptl->ptl_mtables == NULL) /* uninitialized portal */
-		return;
-
-	LASSERT(list_empty(&ptl->ptl_msg_delayed));
-	LASSERT(list_empty(&ptl->ptl_msg_stealing));
-	cfs_percpt_for_each(mtable, i, ptl->ptl_mtables) {
-		struct list_head *mhash;
-		lnet_me_t *me;
-		int j;
-
-		if (mtable->mt_mhash == NULL) /* uninitialized match-table */
-			continue;
-
-		mhash = mtable->mt_mhash;
-		/* cleanup ME */
-		for (j = 0; j < LNET_MT_HASH_SIZE + 1; j++) {
-			while (!list_empty(&mhash[j])) {
-				me = list_entry(mhash[j].next,
-						    lnet_me_t, me_list);
-				CERROR("Active ME %p on exit\n", me);
-				list_del(&me->me_list);
-				lnet_me_free(me);
-			}
-		}
-		/* the extra entry is for MEs with ignore bits */
-		LIBCFS_FREE(mhash, sizeof(*mhash) * (LNET_MT_HASH_SIZE + 1));
-	}
-
-	cfs_percpt_free(ptl->ptl_mtables);
-	ptl->ptl_mtables = NULL;
-}
-
-static int
-lnet_ptl_setup(struct lnet_portal *ptl, int index)
-{
-	struct lnet_match_table	*mtable;
-	struct list_head *mhash;
-	int i;
-	int j;
-
-	ptl->ptl_mtables = cfs_percpt_alloc(lnet_cpt_table(),
-					    sizeof(struct lnet_match_table));
-	if (ptl->ptl_mtables == NULL) {
-		CERROR("Failed to create match table for portal %d\n", index);
-		return -ENOMEM;
-	}
-
-	ptl->ptl_index = index;
-	INIT_LIST_HEAD(&ptl->ptl_msg_delayed);
-	INIT_LIST_HEAD(&ptl->ptl_msg_stealing);
-	spin_lock_init(&ptl->ptl_lock);
-	cfs_percpt_for_each(mtable, i, ptl->ptl_mtables) {
-		/* the extra entry is for MEs with ignore bits */
-		LIBCFS_CPT_ALLOC(mhash, lnet_cpt_table(), i,
-				 sizeof(*mhash) * (LNET_MT_HASH_SIZE + 1));
-		if (mhash == NULL) {
-			CERROR("Failed to create match hash for portal %d\n",
-			       index);
-			goto failed;
-		}
-
-		memset(&mtable->mt_exhausted[0], -1,
-		       sizeof(mtable->mt_exhausted[0]) *
-		       LNET_MT_EXHAUSTED_BMAP);
-		mtable->mt_mhash = mhash;
-		for (j = 0; j < LNET_MT_HASH_SIZE + 1; j++)
-			INIT_LIST_HEAD(&mhash[j]);
-
-		mtable->mt_portal = index;
-		mtable->mt_cpt = i;
-	}
-
-	return 0;
- failed:
-	lnet_ptl_cleanup(ptl);
-	return -ENOMEM;
-}
-
-void
-lnet_portals_destroy(void)
-{
-	int i;
-
-	if (the_lnet.ln_portals == NULL)
-		return;
-
-	for (i = 0; i < the_lnet.ln_nportals; i++)
-		lnet_ptl_cleanup(the_lnet.ln_portals[i]);
-
-	cfs_array_free(the_lnet.ln_portals);
-	the_lnet.ln_portals = NULL;
-}
-
-int
-lnet_portals_create(void)
-{
-	int size;
-	int i;
-
-	size = offsetof(struct lnet_portal, ptl_mt_maps[LNET_CPT_NUMBER]);
-
-	the_lnet.ln_nportals = MAX_PORTALS;
-	the_lnet.ln_portals = cfs_array_alloc(the_lnet.ln_nportals, size);
-	if (the_lnet.ln_portals == NULL) {
-		CERROR("Failed to allocate portals table\n");
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < the_lnet.ln_nportals; i++) {
-		if (lnet_ptl_setup(the_lnet.ln_portals[i], i)) {
-			lnet_portals_destroy();
-			return -ENOMEM;
-		}
-	}
-
-	return 0;
-}
-
-/**
- * Turn on the lazy portal attribute. Use with caution!
- *
- * This portal attribute only affects incoming PUT requests to the portal,
- * and is off by default. By default, if there's no matching MD for an
- * incoming PUT request, it is simply dropped. With the lazy attribute on,
- * such requests are queued indefinitely until either a matching MD is
- * posted to the portal or the lazy attribute is turned off.
- *
- * It would prevent dropped requests, however it should be regarded as the
- * last line of defense - i.e. users must keep a close watch on active
- * buffers on a lazy portal and once it becomes too low post more buffers as
- * soon as possible. This is because delayed requests usually have detrimental
- * effects on underlying network connections. A few delayed requests often
- * suffice to bring an underlying connection to a complete halt, due to flow
- * control mechanisms.
- *
- * There's also a DOS attack risk. If users don't post match-all MDs on a
- * lazy portal, a malicious peer can easily stop a service by sending some
- * PUT requests with match bits that won't match any MD. A routed server is
- * especially vulnerable since the connections to its neighbor routers are
- * shared among all clients.
- *
- * \param portal Index of the portal to enable the lazy attribute on.
- *
- * \retval 0       On success.
- * \retval -EINVAL If \a portal is not a valid index.
- */
-int
-LNetSetLazyPortal(int portal)
-{
-	struct lnet_portal *ptl;
-
-	if (portal < 0 || portal >= the_lnet.ln_nportals)
-		return -EINVAL;
-
-	CDEBUG(D_NET, "Setting portal %d lazy\n", portal);
-	ptl = the_lnet.ln_portals[portal];
-
-	lnet_res_lock(LNET_LOCK_EX);
-	lnet_ptl_lock(ptl);
-
-	lnet_ptl_setopt(ptl, LNET_PTL_LAZY);
-
-	lnet_ptl_unlock(ptl);
-	lnet_res_unlock(LNET_LOCK_EX);
-
-	return 0;
-}
-EXPORT_SYMBOL(LNetSetLazyPortal);
-
-/**
- * Turn off the lazy portal attribute. Delayed requests on the portal,
- * if any, will be all dropped when this function returns.
- *
- * \param portal Index of the portal to disable the lazy attribute on.
- *
- * \retval 0       On success.
- * \retval -EINVAL If \a portal is not a valid index.
- */
-int
-LNetClearLazyPortal(int portal)
-{
-	struct lnet_portal *ptl;
-	LIST_HEAD(zombies);
-
-	if (portal < 0 || portal >= the_lnet.ln_nportals)
-		return -EINVAL;
-
-	ptl = the_lnet.ln_portals[portal];
-
-	lnet_res_lock(LNET_LOCK_EX);
-	lnet_ptl_lock(ptl);
-
-	if (!lnet_ptl_is_lazy(ptl)) {
-		lnet_ptl_unlock(ptl);
-		lnet_res_unlock(LNET_LOCK_EX);
-		return 0;
-	}
-
-	if (the_lnet.ln_shutdown)
-		CWARN("Active lazy portal %d on exit\n", portal);
-	else
-		CDEBUG(D_NET, "clearing portal %d lazy\n", portal);
-
-	/* grab all the blocked messages atomically */
-	list_splice_init(&ptl->ptl_msg_delayed, &zombies);
-
-	lnet_ptl_unsetopt(ptl, LNET_PTL_LAZY);
-
-	lnet_ptl_unlock(ptl);
-	lnet_res_unlock(LNET_LOCK_EX);
-
-	lnet_drop_delayed_msg_list(&zombies, "Clearing lazy portal attr");
-
-	return 0;
-}
-EXPORT_SYMBOL(LNetClearLazyPortal);
diff --git a/drivers/staging/lustre/lnet/lnet/lib-socket.c b/drivers/staging/lustre/lnet/lnet/lib-socket.c
deleted file mode 100644
index 6f7ef4c737cd..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lib-socket.c
+++ /dev/null
@@ -1,594 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2015 Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate, Inc.
- */
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include <linux/if.h>
-#include <linux/in.h>
-#include <linux/net.h>
-#include <linux/file.h>
-#include <linux/pagemap.h>
-/* For sys_open & sys_close */
-#include <linux/syscalls.h>
-#include <net/sock.h>
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lib-lnet.h"
-
-static int
-kernel_sock_unlocked_ioctl(struct file *filp, int cmd, unsigned long arg)
-{
-	mm_segment_t oldfs = get_fs();
-	int err;
-
-	set_fs(KERNEL_DS);
-	err = filp->f_op->unlocked_ioctl(filp, cmd, arg);
-	set_fs(oldfs);
-
-	return err;
-}
-
-static int
-lnet_sock_ioctl(int cmd, unsigned long arg)
-{
-	struct file *sock_filp;
-	struct socket *sock;
-	int rc;
-
-	rc = sock_create(PF_INET, SOCK_STREAM, 0, &sock);
-	if (rc != 0) {
-		CERROR("Can't create socket: %d\n", rc);
-		return rc;
-	}
-
-	sock_filp = sock_alloc_file(sock, 0, NULL);
-	if (IS_ERR(sock_filp)) {
-		sock_release(sock);
-		rc = PTR_ERR(sock_filp);
-		goto out;
-	}
-
-	rc = kernel_sock_unlocked_ioctl(sock_filp, cmd, arg);
-
-	fput(sock_filp);
-out:
-	return rc;
-}
-
-int
-lnet_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask)
-{
-	struct ifreq ifr;
-	int nob;
-	int rc;
-	__u32 val;
-
-	nob = strnlen(name, IFNAMSIZ);
-	if (nob == IFNAMSIZ) {
-		CERROR("Interface name %s too long\n", name);
-		return -EINVAL;
-	}
-
-	CLASSERT(sizeof(ifr.ifr_name) >= IFNAMSIZ);
-
-	strcpy(ifr.ifr_name, name);
-	rc = lnet_sock_ioctl(SIOCGIFFLAGS, (unsigned long)&ifr);
-	if (rc != 0) {
-		CERROR("Can't get flags for interface %s\n", name);
-		return rc;
-	}
-
-	if ((ifr.ifr_flags & IFF_UP) == 0) {
-		CDEBUG(D_NET, "Interface %s down\n", name);
-		*up = 0;
-		*ip = *mask = 0;
-		return 0;
-	}
-	*up = 1;
-
-	strcpy(ifr.ifr_name, name);
-	ifr.ifr_addr.sa_family = AF_INET;
-	rc = lnet_sock_ioctl(SIOCGIFADDR, (unsigned long)&ifr);
-	if (rc != 0) {
-		CERROR("Can't get IP address for interface %s\n", name);
-		return rc;
-	}
-
-	val = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
-	*ip = ntohl(val);
-
-	strcpy(ifr.ifr_name, name);
-	ifr.ifr_addr.sa_family = AF_INET;
-	rc = lnet_sock_ioctl(SIOCGIFNETMASK, (unsigned long)&ifr);
-	if (rc != 0) {
-		CERROR("Can't get netmask for interface %s\n", name);
-		return rc;
-	}
-
-	val = ((struct sockaddr_in *)&ifr.ifr_netmask)->sin_addr.s_addr;
-	*mask = ntohl(val);
-
-	return 0;
-}
-EXPORT_SYMBOL(lnet_ipif_query);
-
-int
-lnet_ipif_enumerate(char ***namesp)
-{
-	/* Allocate and fill in 'names', returning # interfaces/error */
-	char **names;
-	int toobig;
-	int nalloc;
-	int nfound;
-	struct ifreq *ifr;
-	struct ifconf ifc;
-	int rc;
-	int nob;
-	int i;
-
-	nalloc = 16;	/* first guess at max interfaces */
-	toobig = 0;
-	for (;;) {
-		if (nalloc * sizeof(*ifr) > PAGE_CACHE_SIZE) {
-			toobig = 1;
-			nalloc = PAGE_CACHE_SIZE/sizeof(*ifr);
-			CWARN("Too many interfaces: only enumerating first %d\n",
-			      nalloc);
-		}
-
-		LIBCFS_ALLOC(ifr, nalloc * sizeof(*ifr));
-		if (ifr == NULL) {
-			CERROR("ENOMEM enumerating up to %d interfaces\n",
-			       nalloc);
-			rc = -ENOMEM;
-			goto out0;
-		}
-
-		ifc.ifc_buf = (char *)ifr;
-		ifc.ifc_len = nalloc * sizeof(*ifr);
-
-		rc = lnet_sock_ioctl(SIOCGIFCONF, (unsigned long)&ifc);
-		if (rc < 0) {
-			CERROR("Error %d enumerating interfaces\n", rc);
-			goto out1;
-		}
-
-		LASSERT(rc == 0);
-
-		nfound = ifc.ifc_len/sizeof(*ifr);
-		LASSERT(nfound <= nalloc);
-
-		if (nfound < nalloc || toobig)
-			break;
-
-		LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
-		nalloc *= 2;
-	}
-
-	if (nfound == 0)
-		goto out1;
-
-	LIBCFS_ALLOC(names, nfound * sizeof(*names));
-	if (names == NULL) {
-		rc = -ENOMEM;
-		goto out1;
-	}
-
-	for (i = 0; i < nfound; i++) {
-		nob = strnlen(ifr[i].ifr_name, IFNAMSIZ);
-		if (nob == IFNAMSIZ) {
-			/* no space for terminating NULL */
-			CERROR("interface name %.*s too long (%d max)\n",
-			       nob, ifr[i].ifr_name, IFNAMSIZ);
-			rc = -ENAMETOOLONG;
-			goto out2;
-		}
-
-		LIBCFS_ALLOC(names[i], IFNAMSIZ);
-		if (names[i] == NULL) {
-			rc = -ENOMEM;
-			goto out2;
-		}
-
-		memcpy(names[i], ifr[i].ifr_name, nob);
-		names[i][nob] = 0;
-	}
-
-	*namesp = names;
-	rc = nfound;
-
-out2:
-	if (rc < 0)
-		lnet_ipif_free_enumeration(names, nfound);
-out1:
-	LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
-out0:
-	return rc;
-}
-EXPORT_SYMBOL(lnet_ipif_enumerate);
-
-void
-lnet_ipif_free_enumeration(char **names, int n)
-{
-	int i;
-
-	LASSERT(n > 0);
-
-	for (i = 0; i < n && names[i] != NULL; i++)
-		LIBCFS_FREE(names[i], IFNAMSIZ);
-
-	LIBCFS_FREE(names, n * sizeof(*names));
-}
-EXPORT_SYMBOL(lnet_ipif_free_enumeration);
-
-int
-lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout)
-{
-	int rc;
-	long ticks = timeout * HZ;
-	unsigned long then;
-	struct timeval tv;
-
-	LASSERT(nob > 0);
-	/* Caller may pass a zero timeout if she thinks the socket buffer is
-	 * empty enough to take the whole message immediately */
-
-	for (;;) {
-		struct kvec  iov = {
-			.iov_base = buffer,
-			.iov_len  = nob
-		};
-		struct msghdr msg = {
-			.msg_flags      = (timeout == 0) ? MSG_DONTWAIT : 0
-		};
-
-		if (timeout != 0) {
-			/* Set send timeout to remaining time */
-			tv = (struct timeval) {
-				.tv_sec = ticks / HZ,
-				.tv_usec = ((ticks % HZ) * 1000000) / HZ
-			};
-			rc = kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO,
-					       (char *)&tv, sizeof(tv));
-			if (rc != 0) {
-				CERROR("Can't set socket send timeout %ld.%06d: %d\n",
-				       (long)tv.tv_sec, (int)tv.tv_usec, rc);
-				return rc;
-			}
-		}
-
-		then = jiffies;
-		rc = kernel_sendmsg(sock, &msg, &iov, 1, nob);
-		ticks -= jiffies - then;
-
-		if (rc == nob)
-			return 0;
-
-		if (rc < 0)
-			return rc;
-
-		if (rc == 0) {
-			CERROR("Unexpected zero rc\n");
-			return -ECONNABORTED;
-		}
-
-		if (ticks <= 0)
-			return -EAGAIN;
-
-		buffer = ((char *)buffer) + rc;
-		nob -= rc;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(lnet_sock_write);
-
-int
-lnet_sock_read(struct socket *sock, void *buffer, int nob, int timeout)
-{
-	int rc;
-	long ticks = timeout * HZ;
-	unsigned long then;
-	struct timeval tv;
-
-	LASSERT(nob > 0);
-	LASSERT(ticks > 0);
-
-	for (;;) {
-		struct kvec  iov = {
-			.iov_base = buffer,
-			.iov_len  = nob
-		};
-		struct msghdr msg = {
-			.msg_flags = 0
-		};
-
-		/* Set receive timeout to remaining time */
-		tv = (struct timeval) {
-			.tv_sec = ticks / HZ,
-			.tv_usec = ((ticks % HZ) * 1000000) / HZ
-		};
-		rc = kernel_setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO,
-				       (char *)&tv, sizeof(tv));
-		if (rc != 0) {
-			CERROR("Can't set socket recv timeout %ld.%06d: %d\n",
-			       (long)tv.tv_sec, (int)tv.tv_usec, rc);
-			return rc;
-		}
-
-		then = jiffies;
-		rc = kernel_recvmsg(sock, &msg, &iov, 1, nob, 0);
-		ticks -= jiffies - then;
-
-		if (rc < 0)
-			return rc;
-
-		if (rc == 0)
-			return -ECONNRESET;
-
-		buffer = ((char *)buffer) + rc;
-		nob -= rc;
-
-		if (nob == 0)
-			return 0;
-
-		if (ticks <= 0)
-			return -ETIMEDOUT;
-	}
-}
-EXPORT_SYMBOL(lnet_sock_read);
-
-static int
-lnet_sock_create(struct socket **sockp, int *fatal, __u32 local_ip,
-		 int local_port)
-{
-	struct sockaddr_in locaddr;
-	struct socket *sock;
-	int rc;
-	int option;
-
-	/* All errors are fatal except bind failure if the port is in use */
-	*fatal = 1;
-
-	rc = sock_create(PF_INET, SOCK_STREAM, 0, &sock);
-	*sockp = sock;
-	if (rc != 0) {
-		CERROR("Can't create socket: %d\n", rc);
-		return rc;
-	}
-
-	option = 1;
-	rc = kernel_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
-			       (char *)&option, sizeof(option));
-	if (rc != 0) {
-		CERROR("Can't set SO_REUSEADDR for socket: %d\n", rc);
-		goto failed;
-	}
-
-	if (local_ip != 0 || local_port != 0) {
-		memset(&locaddr, 0, sizeof(locaddr));
-		locaddr.sin_family = AF_INET;
-		locaddr.sin_port = htons(local_port);
-		locaddr.sin_addr.s_addr = (local_ip == 0) ?
-					  INADDR_ANY : htonl(local_ip);
-
-		rc = kernel_bind(sock, (struct sockaddr *)&locaddr,
-				 sizeof(locaddr));
-		if (rc == -EADDRINUSE) {
-			CDEBUG(D_NET, "Port %d already in use\n", local_port);
-			*fatal = 0;
-			goto failed;
-		}
-		if (rc != 0) {
-			CERROR("Error trying to bind to port %d: %d\n",
-			       local_port, rc);
-			goto failed;
-		}
-	}
-	return 0;
-
-failed:
-	sock_release(sock);
-	return rc;
-}
-
-int
-lnet_sock_setbuf(struct socket *sock, int txbufsize, int rxbufsize)
-{
-	int option;
-	int rc;
-
-	if (txbufsize != 0) {
-		option = txbufsize;
-		rc = kernel_setsockopt(sock, SOL_SOCKET, SO_SNDBUF,
-				       (char *)&option, sizeof(option));
-		if (rc != 0) {
-			CERROR("Can't set send buffer %d: %d\n",
-			       option, rc);
-			return rc;
-		}
-	}
-
-	if (rxbufsize != 0) {
-		option = rxbufsize;
-		rc = kernel_setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
-				      (char *)&option, sizeof(option));
-		if (rc != 0) {
-			CERROR("Can't set receive buffer %d: %d\n",
-			       option, rc);
-			return rc;
-		}
-	}
-	return 0;
-}
-EXPORT_SYMBOL(lnet_sock_setbuf);
-
-int
-lnet_sock_getaddr(struct socket *sock, bool remote, __u32 *ip, int *port)
-{
-	struct sockaddr_in sin;
-	int len = sizeof(sin);
-	int rc;
-
-	if (remote)
-		rc = kernel_getpeername(sock, (struct sockaddr *)&sin, &len);
-	else
-		rc = kernel_getsockname(sock, (struct sockaddr *)&sin, &len);
-	if (rc != 0) {
-		CERROR("Error %d getting sock %s IP/port\n",
-		       rc, remote ? "peer" : "local");
-		return rc;
-	}
-
-	if (ip != NULL)
-		*ip = ntohl(sin.sin_addr.s_addr);
-
-	if (port != NULL)
-		*port = ntohs(sin.sin_port);
-
-	return 0;
-}
-EXPORT_SYMBOL(lnet_sock_getaddr);
-
-int
-lnet_sock_getbuf(struct socket *sock, int *txbufsize, int *rxbufsize)
-{
-	if (txbufsize != NULL)
-		*txbufsize = sock->sk->sk_sndbuf;
-
-	if (rxbufsize != NULL)
-		*rxbufsize = sock->sk->sk_rcvbuf;
-
-	return 0;
-}
-EXPORT_SYMBOL(lnet_sock_getbuf);
-
-int
-lnet_sock_listen(struct socket **sockp, __u32 local_ip, int local_port,
-		 int backlog)
-{
-	int fatal;
-	int rc;
-
-	rc = lnet_sock_create(sockp, &fatal, local_ip, local_port);
-	if (rc != 0) {
-		if (!fatal)
-			CERROR("Can't create socket: port %d already in use\n",
-			       local_port);
-		return rc;
-	}
-
-	rc = kernel_listen(*sockp, backlog);
-	if (rc == 0)
-		return 0;
-
-	CERROR("Can't set listen backlog %d: %d\n", backlog, rc);
-	sock_release(*sockp);
-	return rc;
-}
-EXPORT_SYMBOL(lnet_sock_listen);
-
-int
-lnet_sock_accept(struct socket **newsockp, struct socket *sock)
-{
-	wait_queue_t wait;
-	struct socket *newsock;
-	int rc;
-
-	init_waitqueue_entry(&wait, current);
-
-	/* XXX this should add a ref to sock->ops->owner, if
-	 * TCP could be a module */
-	rc = sock_create_lite(PF_PACKET, sock->type, IPPROTO_TCP, &newsock);
-	if (rc) {
-		CERROR("Can't allocate socket\n");
-		return rc;
-	}
-
-	newsock->ops = sock->ops;
-
-	rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
-	if (rc == -EAGAIN) {
-		/* Nothing ready, so wait for activity */
-		set_current_state(TASK_INTERRUPTIBLE);
-		add_wait_queue(sk_sleep(sock->sk), &wait);
-		schedule();
-		remove_wait_queue(sk_sleep(sock->sk), &wait);
-		set_current_state(TASK_RUNNING);
-		rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
-	}
-
-	if (rc != 0)
-		goto failed;
-
-	*newsockp = newsock;
-	return 0;
-
-failed:
-	sock_release(newsock);
-	return rc;
-}
-EXPORT_SYMBOL(lnet_sock_accept);
-
-int
-lnet_sock_connect(struct socket **sockp, int *fatal, __u32 local_ip,
-		  int local_port, __u32 peer_ip, int peer_port)
-{
-	struct sockaddr_in srvaddr;
-	int rc;
-
-	rc = lnet_sock_create(sockp, fatal, local_ip, local_port);
-	if (rc != 0)
-		return rc;
-
-	memset(&srvaddr, 0, sizeof(srvaddr));
-	srvaddr.sin_family = AF_INET;
-	srvaddr.sin_port = htons(peer_port);
-	srvaddr.sin_addr.s_addr = htonl(peer_ip);
-
-	rc = kernel_connect(*sockp, (struct sockaddr *)&srvaddr,
-			    sizeof(srvaddr), 0);
-	if (rc == 0)
-		return 0;
-
-	/* EADDRNOTAVAIL probably means we're already connected to the same
-	 * peer/port on the same local port on a differently typed
-	 * connection.  Let our caller retry with a different local
-	 * port... */
-	*fatal = !(rc == -EADDRNOTAVAIL);
-
-	CDEBUG_LIMIT(*fatal ? D_NETERROR : D_NET,
-		     "Error %d connecting %pI4h/%d -> %pI4h/%d\n", rc,
-		     &local_ip, local_port, &peer_ip, peer_port);
-
-	sock_release(*sockp);
-	return rc;
-}
-EXPORT_SYMBOL(lnet_sock_connect);
diff --git a/drivers/staging/lustre/lnet/lnet/lo.c b/drivers/staging/lustre/lnet/lnet/lo.c
deleted file mode 100644
index 2a137f46800f..000000000000
--- a/drivers/staging/lustre/lnet/lnet/lo.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include "../../include/linux/lnet/lib-lnet.h"
-
-static int
-lolnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
-{
-	LASSERT(!lntmsg->msg_routing);
-	LASSERT(!lntmsg->msg_target_is_router);
-
-	return lnet_parse(ni, &lntmsg->msg_hdr, ni->ni_nid, lntmsg, 0);
-}
-
-static int
-lolnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
-	    int delayed, unsigned int niov,
-	    struct kvec *iov, lnet_kiov_t *kiov,
-	    unsigned int offset, unsigned int mlen, unsigned int rlen)
-{
-	lnet_msg_t *sendmsg = private;
-
-	if (lntmsg != NULL) {		   /* not discarding */
-		if (sendmsg->msg_iov != NULL) {
-			if (iov != NULL)
-				lnet_copy_iov2iov(niov, iov, offset,
-						  sendmsg->msg_niov,
-						  sendmsg->msg_iov,
-						  sendmsg->msg_offset, mlen);
-			else
-				lnet_copy_iov2kiov(niov, kiov, offset,
-						   sendmsg->msg_niov,
-						   sendmsg->msg_iov,
-						   sendmsg->msg_offset, mlen);
-		} else {
-			if (iov != NULL)
-				lnet_copy_kiov2iov(niov, iov, offset,
-						   sendmsg->msg_niov,
-						   sendmsg->msg_kiov,
-						   sendmsg->msg_offset, mlen);
-			else
-				lnet_copy_kiov2kiov(niov, kiov, offset,
-						    sendmsg->msg_niov,
-						    sendmsg->msg_kiov,
-						    sendmsg->msg_offset, mlen);
-		}
-
-		lnet_finalize(ni, lntmsg, 0);
-	}
-
-	lnet_finalize(ni, sendmsg, 0);
-	return 0;
-}
-
-static int lolnd_instanced;
-
-static void
-lolnd_shutdown(lnet_ni_t *ni)
-{
-	CDEBUG(D_NET, "shutdown\n");
-	LASSERT(lolnd_instanced);
-
-	lolnd_instanced = 0;
-}
-
-static int
-lolnd_startup(lnet_ni_t *ni)
-{
-	LASSERT(ni->ni_lnd == &the_lolnd);
-	LASSERT(!lolnd_instanced);
-	lolnd_instanced = 1;
-
-	return 0;
-}
-
-lnd_t the_lolnd = {
-	/* .lnd_list       = */ {&the_lolnd.lnd_list, &the_lolnd.lnd_list},
-	/* .lnd_refcount   = */ 0,
-	/* .lnd_type       = */ LOLND,
-	/* .lnd_startup    = */ lolnd_startup,
-	/* .lnd_shutdown   = */ lolnd_shutdown,
-	/* .lnt_ctl        = */ NULL,
-	/* .lnd_send       = */ lolnd_send,
-	/* .lnd_recv       = */ lolnd_recv,
-	/* .lnd_eager_recv = */ NULL,
-	/* .lnd_notify     = */ NULL,
-	/* .lnd_accept     = */ NULL
-};
diff --git a/drivers/staging/lustre/lnet/lnet/module.c b/drivers/staging/lustre/lnet/lnet/module.c
deleted file mode 100644
index 576201a8390c..000000000000
--- a/drivers/staging/lustre/lnet/lnet/module.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include "../../include/linux/lnet/lib-lnet.h"
-
-static int config_on_load;
-module_param(config_on_load, int, 0444);
-MODULE_PARM_DESC(config_on_load, "configure network at module load");
-
-static struct mutex lnet_config_mutex;
-
-static int
-lnet_configure(void *arg)
-{
-	/* 'arg' only there so I can be passed to cfs_create_thread() */
-	int rc = 0;
-
-	mutex_lock(&lnet_config_mutex);
-
-	if (!the_lnet.ln_niinit_self) {
-		rc = LNetNIInit(LUSTRE_SRV_LNET_PID);
-		if (rc >= 0) {
-			the_lnet.ln_niinit_self = 1;
-			rc = 0;
-		}
-	}
-
-	mutex_unlock(&lnet_config_mutex);
-	return rc;
-}
-
-static int
-lnet_unconfigure(void)
-{
-	int refcount;
-
-	mutex_lock(&lnet_config_mutex);
-
-	if (the_lnet.ln_niinit_self) {
-		the_lnet.ln_niinit_self = 0;
-		LNetNIFini();
-	}
-
-	mutex_lock(&the_lnet.ln_api_mutex);
-	refcount = the_lnet.ln_refcount;
-	mutex_unlock(&the_lnet.ln_api_mutex);
-
-	mutex_unlock(&lnet_config_mutex);
-	return (refcount == 0) ? 0 : -EBUSY;
-}
-
-static int
-lnet_ioctl(unsigned int cmd, struct libcfs_ioctl_data *data)
-{
-	int rc;
-
-	switch (cmd) {
-	case IOC_LIBCFS_CONFIGURE:
-		return lnet_configure(NULL);
-
-	case IOC_LIBCFS_UNCONFIGURE:
-		return lnet_unconfigure();
-
-	default:
-		/* Passing LNET_PID_ANY only gives me a ref if the net is up
-		 * already; I'll need it to ensure the net can't go down while
-		 * I'm called into it */
-		rc = LNetNIInit(LNET_PID_ANY);
-		if (rc >= 0) {
-			rc = LNetCtl(cmd, data);
-			LNetNIFini();
-		}
-		return rc;
-	}
-}
-
-static DECLARE_IOCTL_HANDLER(lnet_ioctl_handler, lnet_ioctl);
-
-static int __init
-init_lnet(void)
-{
-	int rc;
-
-	mutex_init(&lnet_config_mutex);
-
-	rc = lnet_init();
-	if (rc != 0) {
-		CERROR("lnet_init: error %d\n", rc);
-		return rc;
-	}
-
-	rc = libcfs_register_ioctl(&lnet_ioctl_handler);
-	LASSERT(rc == 0);
-
-	if (config_on_load) {
-		/* Have to schedule a separate thread to avoid deadlocking
-		 * in modload */
-		(void) kthread_run(lnet_configure, NULL, "lnet_initd");
-	}
-
-	return 0;
-}
-
-static void __exit
-fini_lnet(void)
-{
-	int rc;
-
-	rc = libcfs_deregister_ioctl(&lnet_ioctl_handler);
-	LASSERT(rc == 0);
-
-	lnet_fini();
-}
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("LNet v3.1");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("1.0.0");
-
-module_init(init_lnet);
-module_exit(fini_lnet);
diff --git a/drivers/staging/lustre/lnet/lnet/peer.c b/drivers/staging/lustre/lnet/lnet/peer.c
deleted file mode 100644
index 1fceed3c8fc0..000000000000
--- a/drivers/staging/lustre/lnet/lnet/peer.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/lnet/peer.c
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/lnet/lib-lnet.h"
-
-int
-lnet_peer_tables_create(void)
-{
-	struct lnet_peer_table *ptable;
-	struct list_head *hash;
-	int i;
-	int j;
-
-	the_lnet.ln_peer_tables = cfs_percpt_alloc(lnet_cpt_table(),
-						   sizeof(*ptable));
-	if (the_lnet.ln_peer_tables == NULL) {
-		CERROR("Failed to allocate cpu-partition peer tables\n");
-		return -ENOMEM;
-	}
-
-	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
-		INIT_LIST_HEAD(&ptable->pt_deathrow);
-
-		LIBCFS_CPT_ALLOC(hash, lnet_cpt_table(), i,
-				 LNET_PEER_HASH_SIZE * sizeof(*hash));
-		if (hash == NULL) {
-			CERROR("Failed to create peer hash table\n");
-			lnet_peer_tables_destroy();
-			return -ENOMEM;
-		}
-
-		for (j = 0; j < LNET_PEER_HASH_SIZE; j++)
-			INIT_LIST_HEAD(&hash[j]);
-		ptable->pt_hash = hash; /* sign of initialization */
-	}
-
-	return 0;
-}
-
-void
-lnet_peer_tables_destroy(void)
-{
-	struct lnet_peer_table *ptable;
-	struct list_head *hash;
-	int i;
-	int j;
-
-	if (the_lnet.ln_peer_tables == NULL)
-		return;
-
-	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
-		hash = ptable->pt_hash;
-		if (hash == NULL) /* not initialized */
-			break;
-
-		LASSERT(list_empty(&ptable->pt_deathrow));
-
-		ptable->pt_hash = NULL;
-		for (j = 0; j < LNET_PEER_HASH_SIZE; j++)
-			LASSERT(list_empty(&hash[j]));
-
-		LIBCFS_FREE(hash, LNET_PEER_HASH_SIZE * sizeof(*hash));
-	}
-
-	cfs_percpt_free(the_lnet.ln_peer_tables);
-	the_lnet.ln_peer_tables = NULL;
-}
-
-void
-lnet_peer_tables_cleanup(void)
-{
-	struct lnet_peer_table *ptable;
-	int i;
-	int j;
-
-	LASSERT(the_lnet.ln_shutdown);	/* i.e. no new peers */
-
-	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
-		lnet_net_lock(i);
-
-		for (j = 0; j < LNET_PEER_HASH_SIZE; j++) {
-			struct list_head *peers = &ptable->pt_hash[j];
-
-			while (!list_empty(peers)) {
-				lnet_peer_t *lp = list_entry(peers->next,
-								 lnet_peer_t,
-								 lp_hashlist);
-				list_del_init(&lp->lp_hashlist);
-				/* lose hash table's ref */
-				lnet_peer_decref_locked(lp);
-			}
-		}
-
-		lnet_net_unlock(i);
-	}
-
-	cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
-		LIST_HEAD(deathrow);
-		lnet_peer_t *lp;
-
-		lnet_net_lock(i);
-
-		for (j = 3; ptable->pt_number != 0; j++) {
-			lnet_net_unlock(i);
-
-			if ((j & (j - 1)) == 0) {
-				CDEBUG(D_WARNING,
-				       "Waiting for %d peers on peer table\n",
-				       ptable->pt_number);
-			}
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(cfs_time_seconds(1) / 2);
-			lnet_net_lock(i);
-		}
-		list_splice_init(&ptable->pt_deathrow, &deathrow);
-
-		lnet_net_unlock(i);
-
-		while (!list_empty(&deathrow)) {
-			lp = list_entry(deathrow.next,
-					    lnet_peer_t, lp_hashlist);
-			list_del(&lp->lp_hashlist);
-			LIBCFS_FREE(lp, sizeof(*lp));
-		}
-	}
-}
-
-void
-lnet_destroy_peer_locked(lnet_peer_t *lp)
-{
-	struct lnet_peer_table *ptable;
-
-	LASSERT(lp->lp_refcount == 0);
-	LASSERT(lp->lp_rtr_refcount == 0);
-	LASSERT(list_empty(&lp->lp_txq));
-	LASSERT(list_empty(&lp->lp_hashlist));
-	LASSERT(lp->lp_txqnob == 0);
-
-	ptable = the_lnet.ln_peer_tables[lp->lp_cpt];
-	LASSERT(ptable->pt_number > 0);
-	ptable->pt_number--;
-
-	lnet_ni_decref_locked(lp->lp_ni, lp->lp_cpt);
-	lp->lp_ni = NULL;
-
-	list_add(&lp->lp_hashlist, &ptable->pt_deathrow);
-}
-
-lnet_peer_t *
-lnet_find_peer_locked(struct lnet_peer_table *ptable, lnet_nid_t nid)
-{
-	struct list_head *peers;
-	lnet_peer_t *lp;
-
-	LASSERT(!the_lnet.ln_shutdown);
-
-	peers = &ptable->pt_hash[lnet_nid2peerhash(nid)];
-	list_for_each_entry(lp, peers, lp_hashlist) {
-		if (lp->lp_nid == nid) {
-			lnet_peer_addref_locked(lp);
-			return lp;
-		}
-	}
-
-	return NULL;
-}
-
-int
-lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt)
-{
-	struct lnet_peer_table *ptable;
-	lnet_peer_t *lp = NULL;
-	lnet_peer_t *lp2;
-	int cpt2;
-	int rc = 0;
-
-	*lpp = NULL;
-	if (the_lnet.ln_shutdown) /* it's shutting down */
-		return -ESHUTDOWN;
-
-	/* cpt can be LNET_LOCK_EX if it's called from router functions */
-	cpt2 = cpt != LNET_LOCK_EX ? cpt : lnet_cpt_of_nid_locked(nid);
-
-	ptable = the_lnet.ln_peer_tables[cpt2];
-	lp = lnet_find_peer_locked(ptable, nid);
-	if (lp != NULL) {
-		*lpp = lp;
-		return 0;
-	}
-
-	if (!list_empty(&ptable->pt_deathrow)) {
-		lp = list_entry(ptable->pt_deathrow.next,
-				    lnet_peer_t, lp_hashlist);
-		list_del(&lp->lp_hashlist);
-	}
-
-	/*
-	 * take extra refcount in case another thread has shutdown LNet
-	 * and destroyed locks and peer-table before I finish the allocation
-	 */
-	ptable->pt_number++;
-	lnet_net_unlock(cpt);
-
-	if (lp != NULL)
-		memset(lp, 0, sizeof(*lp));
-	else
-		LIBCFS_CPT_ALLOC(lp, lnet_cpt_table(), cpt2, sizeof(*lp));
-
-	if (lp == NULL) {
-		rc = -ENOMEM;
-		lnet_net_lock(cpt);
-		goto out;
-	}
-
-	INIT_LIST_HEAD(&lp->lp_txq);
-	INIT_LIST_HEAD(&lp->lp_rtrq);
-	INIT_LIST_HEAD(&lp->lp_routes);
-
-	lp->lp_notify = 0;
-	lp->lp_notifylnd = 0;
-	lp->lp_notifying = 0;
-	lp->lp_alive_count = 0;
-	lp->lp_timestamp = 0;
-	lp->lp_alive = !lnet_peers_start_down(); /* 1 bit!! */
-	lp->lp_last_alive = cfs_time_current(); /* assumes alive */
-	lp->lp_last_query = 0; /* haven't asked NI yet */
-	lp->lp_ping_timestamp = 0;
-	lp->lp_ping_feats = LNET_PING_FEAT_INVAL;
-	lp->lp_nid = nid;
-	lp->lp_cpt = cpt2;
-	lp->lp_refcount = 2;	/* 1 for caller; 1 for hash */
-	lp->lp_rtr_refcount = 0;
-
-	lnet_net_lock(cpt);
-
-	if (the_lnet.ln_shutdown) {
-		rc = -ESHUTDOWN;
-		goto out;
-	}
-
-	lp2 = lnet_find_peer_locked(ptable, nid);
-	if (lp2 != NULL) {
-		*lpp = lp2;
-		goto out;
-	}
-
-	lp->lp_ni = lnet_net2ni_locked(LNET_NIDNET(nid), cpt2);
-	if (lp->lp_ni == NULL) {
-		rc = -EHOSTUNREACH;
-		goto out;
-	}
-
-	lp->lp_txcredits     =
-	lp->lp_mintxcredits  = lp->lp_ni->ni_peertxcredits;
-	lp->lp_rtrcredits    =
-	lp->lp_minrtrcredits = lnet_peer_buffer_credits(lp->lp_ni);
-
-	list_add_tail(&lp->lp_hashlist,
-			  &ptable->pt_hash[lnet_nid2peerhash(nid)]);
-	ptable->pt_version++;
-	*lpp = lp;
-
-	return 0;
-out:
-	if (lp != NULL)
-		list_add(&lp->lp_hashlist, &ptable->pt_deathrow);
-	ptable->pt_number--;
-	return rc;
-}
-
-void
-lnet_debug_peer(lnet_nid_t nid)
-{
-	char *aliveness = "NA";
-	lnet_peer_t *lp;
-	int rc;
-	int cpt;
-
-	cpt = lnet_cpt_of_nid(nid);
-	lnet_net_lock(cpt);
-
-	rc = lnet_nid2peer_locked(&lp, nid, cpt);
-	if (rc != 0) {
-		lnet_net_unlock(cpt);
-		CDEBUG(D_WARNING, "No peer %s\n", libcfs_nid2str(nid));
-		return;
-	}
-
-	if (lnet_isrouter(lp) || lnet_peer_aliveness_enabled(lp))
-		aliveness = lp->lp_alive ? "up" : "down";
-
-	CDEBUG(D_WARNING, "%-24s %4d %5s %5d %5d %5d %5d %5d %ld\n",
-	       libcfs_nid2str(lp->lp_nid), lp->lp_refcount,
-	       aliveness, lp->lp_ni->ni_peertxcredits,
-	       lp->lp_rtrcredits, lp->lp_minrtrcredits,
-	       lp->lp_txcredits, lp->lp_mintxcredits, lp->lp_txqnob);
-
-	lnet_peer_decref_locked(lp);
-
-	lnet_net_unlock(cpt);
-}
diff --git a/drivers/staging/lustre/lnet/lnet/router.c b/drivers/staging/lustre/lnet/lnet/router.c
deleted file mode 100644
index 4fbae5ef44a9..000000000000
--- a/drivers/staging/lustre/lnet/lnet/router.c
+++ /dev/null
@@ -1,1561 +0,0 @@
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- *
- *   This file is part of Portals
- *   http://sourceforge.net/projects/sandiaportals/
- *
- *   Portals is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Portals is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include "../../include/linux/lnet/lib-lnet.h"
-
-#define LNET_NRB_TINY_MIN	512	/* min value for each CPT */
-#define LNET_NRB_TINY		(LNET_NRB_TINY_MIN * 4)
-#define LNET_NRB_SMALL_MIN	4096	/* min value for each CPT */
-#define LNET_NRB_SMALL		(LNET_NRB_SMALL_MIN * 4)
-#define LNET_NRB_LARGE_MIN	256	/* min value for each CPT */
-#define LNET_NRB_LARGE		(LNET_NRB_LARGE_MIN * 4)
-
-static char *forwarding = "";
-module_param(forwarding, charp, 0444);
-MODULE_PARM_DESC(forwarding, "Explicitly enable/disable forwarding between networks");
-
-static int tiny_router_buffers;
-module_param(tiny_router_buffers, int, 0444);
-MODULE_PARM_DESC(tiny_router_buffers, "# of 0 payload messages to buffer in the router");
-static int small_router_buffers;
-module_param(small_router_buffers, int, 0444);
-MODULE_PARM_DESC(small_router_buffers, "# of small (1 page) messages to buffer in the router");
-static int large_router_buffers;
-module_param(large_router_buffers, int, 0444);
-MODULE_PARM_DESC(large_router_buffers, "# of large messages to buffer in the router");
-static int peer_buffer_credits;
-module_param(peer_buffer_credits, int, 0444);
-MODULE_PARM_DESC(peer_buffer_credits, "# router buffer credits per peer");
-
-static int auto_down = 1;
-module_param(auto_down, int, 0444);
-MODULE_PARM_DESC(auto_down, "Automatically mark peers down on comms error");
-
-int
-lnet_peer_buffer_credits(lnet_ni_t *ni)
-{
-	/* NI option overrides LNet default */
-	if (ni->ni_peerrtrcredits > 0)
-		return ni->ni_peerrtrcredits;
-	if (peer_buffer_credits > 0)
-		return peer_buffer_credits;
-
-	/* As an approximation, allow this peer the same number of router
-	 * buffers as it is allowed outstanding sends */
-	return ni->ni_peertxcredits;
-}
-
-/* forward ref's */
-static int lnet_router_checker(void *);
-
-static int check_routers_before_use;
-module_param(check_routers_before_use, int, 0444);
-MODULE_PARM_DESC(check_routers_before_use, "Assume routers are down and ping them before use");
-
-int avoid_asym_router_failure = 1;
-module_param(avoid_asym_router_failure, int, 0644);
-MODULE_PARM_DESC(avoid_asym_router_failure, "Avoid asymmetrical router failures (0 to disable)");
-
-static int dead_router_check_interval = 60;
-module_param(dead_router_check_interval, int, 0644);
-MODULE_PARM_DESC(dead_router_check_interval, "Seconds between dead router health checks (<= 0 to disable)");
-
-static int live_router_check_interval = 60;
-module_param(live_router_check_interval, int, 0644);
-MODULE_PARM_DESC(live_router_check_interval, "Seconds between live router health checks (<= 0 to disable)");
-
-static int router_ping_timeout = 50;
-module_param(router_ping_timeout, int, 0644);
-MODULE_PARM_DESC(router_ping_timeout, "Seconds to wait for the reply to a router health query");
-
-int
-lnet_peers_start_down(void)
-{
-	return check_routers_before_use;
-}
-
-void
-lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive,
-		   unsigned long when)
-{
-	if (time_before(when, lp->lp_timestamp)) { /* out of date information */
-		CDEBUG(D_NET, "Out of date\n");
-		return;
-	}
-
-	lp->lp_timestamp = when;		/* update timestamp */
-	lp->lp_ping_deadline = 0;	       /* disable ping timeout */
-
-	if (lp->lp_alive_count != 0 &&	  /* got old news */
-	    (!lp->lp_alive) == (!alive)) {      /* new date for old news */
-		CDEBUG(D_NET, "Old news\n");
-		return;
-	}
-
-	/* Flag that notification is outstanding */
-
-	lp->lp_alive_count++;
-	lp->lp_alive = !(!alive);	       /* 1 bit! */
-	lp->lp_notify = 1;
-	lp->lp_notifylnd |= notifylnd;
-	if (lp->lp_alive)
-		lp->lp_ping_feats = LNET_PING_FEAT_INVAL; /* reset */
-
-	CDEBUG(D_NET, "set %s %d\n", libcfs_nid2str(lp->lp_nid), alive);
-}
-
-static void
-lnet_ni_notify_locked(lnet_ni_t *ni, lnet_peer_t *lp)
-{
-	int alive;
-	int notifylnd;
-
-	/* Notify only in 1 thread at any time to ensure ordered notification.
-	 * NB individual events can be missed; the only guarantee is that you
-	 * always get the most recent news */
-
-	if (lp->lp_notifying || ni == NULL)
-		return;
-
-	lp->lp_notifying = 1;
-
-	while (lp->lp_notify) {
-		alive = lp->lp_alive;
-		notifylnd = lp->lp_notifylnd;
-
-		lp->lp_notifylnd = 0;
-		lp->lp_notify    = 0;
-
-		if (notifylnd && ni->ni_lnd->lnd_notify != NULL) {
-			lnet_net_unlock(lp->lp_cpt);
-
-			/* A new notification could happen now; I'll handle it
-			 * when control returns to me */
-
-			(ni->ni_lnd->lnd_notify)(ni, lp->lp_nid, alive);
-
-			lnet_net_lock(lp->lp_cpt);
-		}
-	}
-
-	lp->lp_notifying = 0;
-}
-
-
-static void
-lnet_rtr_addref_locked(lnet_peer_t *lp)
-{
-	LASSERT(lp->lp_refcount > 0);
-	LASSERT(lp->lp_rtr_refcount >= 0);
-
-	/* lnet_net_lock must be exclusively locked */
-	lp->lp_rtr_refcount++;
-	if (lp->lp_rtr_refcount == 1) {
-		struct list_head *pos;
-
-		/* a simple insertion sort */
-		list_for_each_prev(pos, &the_lnet.ln_routers) {
-			lnet_peer_t *rtr = list_entry(pos, lnet_peer_t,
-							  lp_rtr_list);
-
-			if (rtr->lp_nid < lp->lp_nid)
-				break;
-		}
-
-		list_add(&lp->lp_rtr_list, pos);
-		/* addref for the_lnet.ln_routers */
-		lnet_peer_addref_locked(lp);
-		the_lnet.ln_routers_version++;
-	}
-}
-
-static void
-lnet_rtr_decref_locked(lnet_peer_t *lp)
-{
-	LASSERT(lp->lp_refcount > 0);
-	LASSERT(lp->lp_rtr_refcount > 0);
-
-	/* lnet_net_lock must be exclusively locked */
-	lp->lp_rtr_refcount--;
-	if (lp->lp_rtr_refcount == 0) {
-		LASSERT(list_empty(&lp->lp_routes));
-
-		if (lp->lp_rcd != NULL) {
-			list_add(&lp->lp_rcd->rcd_list,
-				     &the_lnet.ln_rcd_deathrow);
-			lp->lp_rcd = NULL;
-		}
-
-		list_del(&lp->lp_rtr_list);
-		/* decref for the_lnet.ln_routers */
-		lnet_peer_decref_locked(lp);
-		the_lnet.ln_routers_version++;
-	}
-}
-
-lnet_remotenet_t *
-lnet_find_net_locked(__u32 net)
-{
-	lnet_remotenet_t *rnet;
-	struct list_head *tmp;
-	struct list_head *rn_list;
-
-	LASSERT(!the_lnet.ln_shutdown);
-
-	rn_list = lnet_net2rnethash(net);
-	list_for_each(tmp, rn_list) {
-		rnet = list_entry(tmp, lnet_remotenet_t, lrn_list);
-
-		if (rnet->lrn_net == net)
-			return rnet;
-	}
-	return NULL;
-}
-
-static void lnet_shuffle_seed(void)
-{
-	static int seeded;
-	int lnd_type, seed[2];
-	struct timeval tv;
-	lnet_ni_t *ni;
-	struct list_head *tmp;
-
-	if (seeded)
-		return;
-
-	cfs_get_random_bytes(seed, sizeof(seed));
-
-	/* Nodes with small feet have little entropy
-	 * the NID for this node gives the most entropy in the low bits */
-	list_for_each(tmp, &the_lnet.ln_nis) {
-		ni = list_entry(tmp, lnet_ni_t, ni_list);
-		lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid));
-
-		if (lnd_type != LOLND)
-			seed[0] ^= (LNET_NIDADDR(ni->ni_nid) | lnd_type);
-	}
-
-	do_gettimeofday(&tv);
-	cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
-	seeded = 1;
-}
-
-/* NB expects LNET_LOCK held */
-static void
-lnet_add_route_to_rnet(lnet_remotenet_t *rnet, lnet_route_t *route)
-{
-	unsigned int len = 0;
-	unsigned int offset = 0;
-	struct list_head *e;
-
-	lnet_shuffle_seed();
-
-	list_for_each(e, &rnet->lrn_routes) {
-		len++;
-	}
-
-	/* len+1 positions to add a new entry, also prevents division by 0 */
-	offset = cfs_rand() % (len + 1);
-	list_for_each(e, &rnet->lrn_routes) {
-		if (offset == 0)
-			break;
-		offset--;
-	}
-	list_add(&route->lr_list, e);
-	list_add(&route->lr_gwlist, &route->lr_gateway->lp_routes);
-
-	the_lnet.ln_remote_nets_version++;
-	lnet_rtr_addref_locked(route->lr_gateway);
-}
-
-int
-lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway,
-	       unsigned int priority)
-{
-	struct list_head *e;
-	lnet_remotenet_t *rnet;
-	lnet_remotenet_t *rnet2;
-	lnet_route_t *route;
-	lnet_ni_t *ni;
-	int add_route;
-	int rc;
-
-	CDEBUG(D_NET, "Add route: net %s hops %u priority %u gw %s\n",
-	       libcfs_net2str(net), hops, priority, libcfs_nid2str(gateway));
-
-	if (gateway == LNET_NID_ANY ||
-	    LNET_NETTYP(LNET_NIDNET(gateway)) == LOLND ||
-	    net == LNET_NIDNET(LNET_NID_ANY) ||
-	    LNET_NETTYP(net) == LOLND ||
-	    LNET_NIDNET(gateway) == net ||
-	    hops < 1 || hops > 255)
-		return -EINVAL;
-
-	if (lnet_islocalnet(net))	       /* it's a local network */
-		return 0;		       /* ignore the route entry */
-
-	/* Assume net, route, all new */
-	LIBCFS_ALLOC(route, sizeof(*route));
-	LIBCFS_ALLOC(rnet, sizeof(*rnet));
-	if (route == NULL || rnet == NULL) {
-		CERROR("Out of memory creating route %s %d %s\n",
-		       libcfs_net2str(net), hops, libcfs_nid2str(gateway));
-		if (route != NULL)
-			LIBCFS_FREE(route, sizeof(*route));
-		if (rnet != NULL)
-			LIBCFS_FREE(rnet, sizeof(*rnet));
-		return -ENOMEM;
-	}
-
-	INIT_LIST_HEAD(&rnet->lrn_routes);
-	rnet->lrn_net = net;
-	route->lr_hops = hops;
-	route->lr_net = net;
-	route->lr_priority = priority;
-
-	lnet_net_lock(LNET_LOCK_EX);
-
-	rc = lnet_nid2peer_locked(&route->lr_gateway, gateway, LNET_LOCK_EX);
-	if (rc != 0) {
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		LIBCFS_FREE(route, sizeof(*route));
-		LIBCFS_FREE(rnet, sizeof(*rnet));
-
-		if (rc == -EHOSTUNREACH) /* gateway is not on a local net */
-			return 0;	/* ignore the route entry */
-		CERROR("Error %d creating route %s %d %s\n", rc,
-		       libcfs_net2str(net), hops,
-		       libcfs_nid2str(gateway));
-
-		return rc;
-	}
-
-	LASSERT(!the_lnet.ln_shutdown);
-
-	rnet2 = lnet_find_net_locked(net);
-	if (rnet2 == NULL) {
-		/* new network */
-		list_add_tail(&rnet->lrn_list, lnet_net2rnethash(net));
-		rnet2 = rnet;
-	}
-
-	/* Search for a duplicate route (it's a NOOP if it is) */
-	add_route = 1;
-	list_for_each(e, &rnet2->lrn_routes) {
-		lnet_route_t *route2 = list_entry(e, lnet_route_t, lr_list);
-
-		if (route2->lr_gateway == route->lr_gateway) {
-			add_route = 0;
-			break;
-		}
-
-		/* our lookups must be true */
-		LASSERT(route2->lr_gateway->lp_nid != gateway);
-	}
-
-	if (add_route) {
-		lnet_peer_addref_locked(route->lr_gateway); /* +1 for notify */
-		lnet_add_route_to_rnet(rnet2, route);
-
-		ni = route->lr_gateway->lp_ni;
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		/* XXX Assume alive */
-		if (ni->ni_lnd->lnd_notify != NULL)
-			(ni->ni_lnd->lnd_notify)(ni, gateway, 1);
-
-		lnet_net_lock(LNET_LOCK_EX);
-	}
-
-	/* -1 for notify or !add_route */
-	lnet_peer_decref_locked(route->lr_gateway);
-	lnet_net_unlock(LNET_LOCK_EX);
-
-	if (!add_route)
-		LIBCFS_FREE(route, sizeof(*route));
-
-	if (rnet != rnet2)
-		LIBCFS_FREE(rnet, sizeof(*rnet));
-
-	return 0;
-}
-
-int
-lnet_check_routes(void)
-{
-	lnet_remotenet_t *rnet;
-	lnet_route_t *route;
-	lnet_route_t *route2;
-	struct list_head *e1;
-	struct list_head *e2;
-	int cpt;
-	struct list_head *rn_list;
-	int i;
-
-	cpt = lnet_net_lock_current();
-
-	for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE; i++) {
-		rn_list = &the_lnet.ln_remote_nets_hash[i];
-		list_for_each(e1, rn_list) {
-			rnet = list_entry(e1, lnet_remotenet_t, lrn_list);
-
-			route2 = NULL;
-			list_for_each(e2, &rnet->lrn_routes) {
-				lnet_nid_t nid1;
-				lnet_nid_t nid2;
-				int net;
-
-				route = list_entry(e2, lnet_route_t,
-						       lr_list);
-
-				if (route2 == NULL) {
-					route2 = route;
-					continue;
-				}
-
-				if (route->lr_gateway->lp_ni ==
-				    route2->lr_gateway->lp_ni)
-					continue;
-
-				nid1 = route->lr_gateway->lp_nid;
-				nid2 = route2->lr_gateway->lp_nid;
-				net = rnet->lrn_net;
-
-				lnet_net_unlock(cpt);
-
-				CERROR("Routes to %s via %s and %s not supported\n",
-				       libcfs_net2str(net),
-				       libcfs_nid2str(nid1),
-				       libcfs_nid2str(nid2));
-				return -EINVAL;
-			}
-		}
-	}
-
-	lnet_net_unlock(cpt);
-	return 0;
-}
-
-int
-lnet_del_route(__u32 net, lnet_nid_t gw_nid)
-{
-	struct lnet_peer *gateway;
-	lnet_remotenet_t *rnet;
-	lnet_route_t *route;
-	struct list_head *e1;
-	struct list_head *e2;
-	int rc = -ENOENT;
-	struct list_head *rn_list;
-	int idx = 0;
-
-	CDEBUG(D_NET, "Del route: net %s : gw %s\n",
-	       libcfs_net2str(net), libcfs_nid2str(gw_nid));
-
-	/* NB Caller may specify either all routes via the given gateway
-	 * or a specific route entry actual NIDs) */
-
-	lnet_net_lock(LNET_LOCK_EX);
-	if (net == LNET_NIDNET(LNET_NID_ANY))
-		rn_list = &the_lnet.ln_remote_nets_hash[0];
-	else
-		rn_list = lnet_net2rnethash(net);
-
- again:
-	list_for_each(e1, rn_list) {
-		rnet = list_entry(e1, lnet_remotenet_t, lrn_list);
-
-		if (!(net == LNET_NIDNET(LNET_NID_ANY) ||
-			net == rnet->lrn_net))
-			continue;
-
-		list_for_each(e2, &rnet->lrn_routes) {
-			route = list_entry(e2, lnet_route_t, lr_list);
-
-			gateway = route->lr_gateway;
-			if (!(gw_nid == LNET_NID_ANY ||
-			      gw_nid == gateway->lp_nid))
-				continue;
-
-			list_del(&route->lr_list);
-			list_del(&route->lr_gwlist);
-			the_lnet.ln_remote_nets_version++;
-
-			if (list_empty(&rnet->lrn_routes))
-				list_del(&rnet->lrn_list);
-			else
-				rnet = NULL;
-
-			lnet_rtr_decref_locked(gateway);
-			lnet_peer_decref_locked(gateway);
-
-			lnet_net_unlock(LNET_LOCK_EX);
-
-			LIBCFS_FREE(route, sizeof(*route));
-
-			if (rnet != NULL)
-				LIBCFS_FREE(rnet, sizeof(*rnet));
-
-			rc = 0;
-			lnet_net_lock(LNET_LOCK_EX);
-			goto again;
-		}
-	}
-
-	if (net == LNET_NIDNET(LNET_NID_ANY) &&
-	    ++idx < LNET_REMOTE_NETS_HASH_SIZE) {
-		rn_list = &the_lnet.ln_remote_nets_hash[idx];
-		goto again;
-	}
-	lnet_net_unlock(LNET_LOCK_EX);
-
-	return rc;
-}
-
-void
-lnet_destroy_routes(void)
-{
-	lnet_del_route(LNET_NIDNET(LNET_NID_ANY), LNET_NID_ANY);
-}
-
-int
-lnet_get_route(int idx, __u32 *net, __u32 *hops,
-	       lnet_nid_t *gateway, __u32 *alive, __u32 *priority)
-{
-	struct list_head *e1;
-	struct list_head *e2;
-	lnet_remotenet_t *rnet;
-	lnet_route_t *route;
-	int cpt;
-	int i;
-	struct list_head *rn_list;
-
-	cpt = lnet_net_lock_current();
-
-	for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE; i++) {
-		rn_list = &the_lnet.ln_remote_nets_hash[i];
-		list_for_each(e1, rn_list) {
-			rnet = list_entry(e1, lnet_remotenet_t, lrn_list);
-
-			list_for_each(e2, &rnet->lrn_routes) {
-				route = list_entry(e2, lnet_route_t,
-						       lr_list);
-
-				if (idx-- == 0) {
-					*net      = rnet->lrn_net;
-					*hops     = route->lr_hops;
-					*priority = route->lr_priority;
-					*gateway  = route->lr_gateway->lp_nid;
-					*alive    = route->lr_gateway->lp_alive;
-					lnet_net_unlock(cpt);
-					return 0;
-				}
-			}
-		}
-	}
-
-	lnet_net_unlock(cpt);
-	return -ENOENT;
-}
-
-void
-lnet_swap_pinginfo(lnet_ping_info_t *info)
-{
-	int i;
-	lnet_ni_status_t *stat;
-
-	__swab32s(&info->pi_magic);
-	__swab32s(&info->pi_features);
-	__swab32s(&info->pi_pid);
-	__swab32s(&info->pi_nnis);
-	for (i = 0; i < info->pi_nnis && i < LNET_MAX_RTR_NIS; i++) {
-		stat = &info->pi_ni[i];
-		__swab64s(&stat->ns_nid);
-		__swab32s(&stat->ns_status);
-	}
-}
-
-/**
- * parse router-checker pinginfo, record number of down NIs for remote
- * networks on that router.
- */
-static void
-lnet_parse_rc_info(lnet_rc_data_t *rcd)
-{
-	lnet_ping_info_t *info = rcd->rcd_pinginfo;
-	struct lnet_peer *gw = rcd->rcd_gateway;
-	lnet_route_t *rtr;
-
-	if (!gw->lp_alive)
-		return;
-
-	if (info->pi_magic == __swab32(LNET_PROTO_PING_MAGIC))
-		lnet_swap_pinginfo(info);
-
-	/* NB always racing with network! */
-	if (info->pi_magic != LNET_PROTO_PING_MAGIC) {
-		CDEBUG(D_NET, "%s: Unexpected magic %08x\n",
-		       libcfs_nid2str(gw->lp_nid), info->pi_magic);
-		gw->lp_ping_feats = LNET_PING_FEAT_INVAL;
-		return;
-	}
-
-	gw->lp_ping_feats = info->pi_features;
-	if ((gw->lp_ping_feats & LNET_PING_FEAT_MASK) == 0) {
-		CDEBUG(D_NET, "%s: Unexpected features 0x%x\n",
-		       libcfs_nid2str(gw->lp_nid), gw->lp_ping_feats);
-		return; /* nothing I can understand */
-	}
-
-	if ((gw->lp_ping_feats & LNET_PING_FEAT_NI_STATUS) == 0)
-		return; /* can't carry NI status info */
-
-	list_for_each_entry(rtr, &gw->lp_routes, lr_gwlist) {
-		int ptl_status = LNET_NI_STATUS_INVALID;
-		int down = 0;
-		int up = 0;
-		int i;
-
-		for (i = 0; i < info->pi_nnis && i < LNET_MAX_RTR_NIS; i++) {
-			lnet_ni_status_t *stat = &info->pi_ni[i];
-			lnet_nid_t nid = stat->ns_nid;
-
-			if (nid == LNET_NID_ANY) {
-				CDEBUG(D_NET, "%s: unexpected LNET_NID_ANY\n",
-				       libcfs_nid2str(gw->lp_nid));
-				gw->lp_ping_feats = LNET_PING_FEAT_INVAL;
-				return;
-			}
-
-			if (LNET_NETTYP(LNET_NIDNET(nid)) == LOLND)
-				continue;
-
-			if (stat->ns_status == LNET_NI_STATUS_DOWN) {
-				if (LNET_NETTYP(LNET_NIDNET(nid)) != PTLLND)
-					down++;
-				else if (ptl_status != LNET_NI_STATUS_UP)
-					ptl_status = LNET_NI_STATUS_DOWN;
-				continue;
-			}
-
-			if (stat->ns_status == LNET_NI_STATUS_UP) {
-				if (LNET_NIDNET(nid) == rtr->lr_net) {
-					up = 1;
-					break;
-				}
-				/* ptl NIs are considered down only when
-				 * they're all down */
-				if (LNET_NETTYP(LNET_NIDNET(nid)) == PTLLND)
-					ptl_status = LNET_NI_STATUS_UP;
-				continue;
-			}
-
-			CDEBUG(D_NET, "%s: Unexpected status 0x%x\n",
-			       libcfs_nid2str(gw->lp_nid), stat->ns_status);
-			gw->lp_ping_feats = LNET_PING_FEAT_INVAL;
-			return;
-		}
-
-		if (up) { /* ignore downed NIs if NI for dest network is up */
-			rtr->lr_downis = 0;
-			continue;
-		}
-		rtr->lr_downis = down + (ptl_status == LNET_NI_STATUS_DOWN);
-	}
-}
-
-static void
-lnet_router_checker_event(lnet_event_t *event)
-{
-	lnet_rc_data_t *rcd = event->md.user_ptr;
-	struct lnet_peer *lp;
-
-	LASSERT(rcd != NULL);
-
-	if (event->unlinked) {
-		LNetInvalidateHandle(&rcd->rcd_mdh);
-		return;
-	}
-
-	LASSERT(event->type == LNET_EVENT_SEND ||
-		event->type == LNET_EVENT_REPLY);
-
-	lp = rcd->rcd_gateway;
-	LASSERT(lp != NULL);
-
-	 /* NB: it's called with holding lnet_res_lock, we have a few
-	  * places need to hold both locks at the same time, please take
-	  * care of lock ordering */
-	lnet_net_lock(lp->lp_cpt);
-	if (!lnet_isrouter(lp) || lp->lp_rcd != rcd) {
-		/* ignore if no longer a router or rcd is replaced */
-		goto out;
-	}
-
-	if (event->type == LNET_EVENT_SEND) {
-		lp->lp_ping_notsent = 0;
-		if (event->status == 0)
-			goto out;
-	}
-
-	/* LNET_EVENT_REPLY */
-	/* A successful REPLY means the router is up.  If _any_ comms
-	 * to the router fail I assume it's down (this will happen if
-	 * we ping alive routers to try to detect router death before
-	 * apps get burned). */
-
-	lnet_notify_locked(lp, 1, (event->status == 0), cfs_time_current());
-	/* The router checker will wake up very shortly and do the
-	 * actual notification.
-	 * XXX If 'lp' stops being a router before then, it will still
-	 * have the notification pending!!! */
-
-	if (avoid_asym_router_failure && event->status == 0)
-		lnet_parse_rc_info(rcd);
-
- out:
-	lnet_net_unlock(lp->lp_cpt);
-}
-
-static void
-lnet_wait_known_routerstate(void)
-{
-	lnet_peer_t *rtr;
-	struct list_head *entry;
-	int all_known;
-
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
-
-	for (;;) {
-		int cpt = lnet_net_lock_current();
-
-		all_known = 1;
-		list_for_each(entry, &the_lnet.ln_routers) {
-			rtr = list_entry(entry, lnet_peer_t, lp_rtr_list);
-
-			if (rtr->lp_alive_count == 0) {
-				all_known = 0;
-				break;
-			}
-		}
-
-		lnet_net_unlock(cpt);
-
-		if (all_known)
-			return;
-
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1));
-	}
-}
-
-void
-lnet_router_ni_update_locked(lnet_peer_t *gw, __u32 net)
-{
-	lnet_route_t *rte;
-
-	if ((gw->lp_ping_feats & LNET_PING_FEAT_NI_STATUS) != 0) {
-		list_for_each_entry(rte, &gw->lp_routes, lr_gwlist) {
-			if (rte->lr_net == net) {
-				rte->lr_downis = 0;
-				break;
-			}
-		}
-	}
-}
-
-static void
-lnet_update_ni_status_locked(void)
-{
-	lnet_ni_t *ni;
-	long now;
-	int timeout;
-
-	LASSERT(the_lnet.ln_routing);
-
-	timeout = router_ping_timeout +
-		  max(live_router_check_interval, dead_router_check_interval);
-
-	now = get_seconds();
-	list_for_each_entry(ni, &the_lnet.ln_nis, ni_list) {
-		if (ni->ni_lnd->lnd_type == LOLND)
-			continue;
-
-		if (now < ni->ni_last_alive + timeout)
-			continue;
-
-		lnet_ni_lock(ni);
-		/* re-check with lock */
-		if (now < ni->ni_last_alive + timeout) {
-			lnet_ni_unlock(ni);
-			continue;
-		}
-
-		LASSERT(ni->ni_status != NULL);
-
-		if (ni->ni_status->ns_status != LNET_NI_STATUS_DOWN) {
-			CDEBUG(D_NET, "NI(%s:%d) status changed to down\n",
-			       libcfs_nid2str(ni->ni_nid), timeout);
-			/* NB: so far, this is the only place to set
-			 * NI status to "down" */
-			ni->ni_status->ns_status = LNET_NI_STATUS_DOWN;
-		}
-		lnet_ni_unlock(ni);
-	}
-}
-
-static void
-lnet_destroy_rc_data(lnet_rc_data_t *rcd)
-{
-	LASSERT(list_empty(&rcd->rcd_list));
-	/* detached from network */
-	LASSERT(LNetHandleIsInvalid(rcd->rcd_mdh));
-
-	if (rcd->rcd_gateway != NULL) {
-		int cpt = rcd->rcd_gateway->lp_cpt;
-
-		lnet_net_lock(cpt);
-		lnet_peer_decref_locked(rcd->rcd_gateway);
-		lnet_net_unlock(cpt);
-	}
-
-	if (rcd->rcd_pinginfo != NULL)
-		LIBCFS_FREE(rcd->rcd_pinginfo, LNET_PINGINFO_SIZE);
-
-	LIBCFS_FREE(rcd, sizeof(*rcd));
-}
-
-static lnet_rc_data_t *
-lnet_create_rc_data_locked(lnet_peer_t *gateway)
-{
-	lnet_rc_data_t *rcd = NULL;
-	lnet_ping_info_t *pi;
-	int rc;
-	int i;
-
-	lnet_net_unlock(gateway->lp_cpt);
-
-	LIBCFS_ALLOC(rcd, sizeof(*rcd));
-	if (rcd == NULL)
-		goto out;
-
-	LNetInvalidateHandle(&rcd->rcd_mdh);
-	INIT_LIST_HEAD(&rcd->rcd_list);
-
-	LIBCFS_ALLOC(pi, LNET_PINGINFO_SIZE);
-	if (pi == NULL)
-		goto out;
-
-	for (i = 0; i < LNET_MAX_RTR_NIS; i++) {
-		pi->pi_ni[i].ns_nid = LNET_NID_ANY;
-		pi->pi_ni[i].ns_status = LNET_NI_STATUS_INVALID;
-	}
-	rcd->rcd_pinginfo = pi;
-
-	LASSERT(!LNetHandleIsInvalid(the_lnet.ln_rc_eqh));
-	rc = LNetMDBind((lnet_md_t){.start     = pi,
-				    .user_ptr  = rcd,
-				    .length    = LNET_PINGINFO_SIZE,
-				    .threshold = LNET_MD_THRESH_INF,
-				    .options   = LNET_MD_TRUNCATE,
-				    .eq_handle = the_lnet.ln_rc_eqh},
-			LNET_UNLINK,
-			&rcd->rcd_mdh);
-	if (rc < 0) {
-		CERROR("Can't bind MD: %d\n", rc);
-		goto out;
-	}
-	LASSERT(rc == 0);
-
-	lnet_net_lock(gateway->lp_cpt);
-	/* router table changed or someone has created rcd for this gateway */
-	if (!lnet_isrouter(gateway) || gateway->lp_rcd != NULL) {
-		lnet_net_unlock(gateway->lp_cpt);
-		goto out;
-	}
-
-	lnet_peer_addref_locked(gateway);
-	rcd->rcd_gateway = gateway;
-	gateway->lp_rcd = rcd;
-	gateway->lp_ping_notsent = 0;
-
-	return rcd;
-
- out:
-	if (rcd != NULL) {
-		if (!LNetHandleIsInvalid(rcd->rcd_mdh)) {
-			rc = LNetMDUnlink(rcd->rcd_mdh);
-			LASSERT(rc == 0);
-		}
-		lnet_destroy_rc_data(rcd);
-	}
-
-	lnet_net_lock(gateway->lp_cpt);
-	return gateway->lp_rcd;
-}
-
-static int
-lnet_router_check_interval(lnet_peer_t *rtr)
-{
-	int secs;
-
-	secs = rtr->lp_alive ? live_router_check_interval :
-			       dead_router_check_interval;
-	if (secs < 0)
-		secs = 0;
-
-	return secs;
-}
-
-static void
-lnet_ping_router_locked(lnet_peer_t *rtr)
-{
-	lnet_rc_data_t *rcd = NULL;
-	unsigned long now = cfs_time_current();
-	int secs;
-
-	lnet_peer_addref_locked(rtr);
-
-	if (rtr->lp_ping_deadline != 0 && /* ping timed out? */
-	    cfs_time_after(now, rtr->lp_ping_deadline))
-		lnet_notify_locked(rtr, 1, 0, now);
-
-	/* Run any outstanding notifications */
-	lnet_ni_notify_locked(rtr->lp_ni, rtr);
-
-	if (!lnet_isrouter(rtr) ||
-	    the_lnet.ln_rc_state != LNET_RC_STATE_RUNNING) {
-		/* router table changed or router checker is shutting down */
-		lnet_peer_decref_locked(rtr);
-		return;
-	}
-
-	rcd = rtr->lp_rcd != NULL ?
-	      rtr->lp_rcd : lnet_create_rc_data_locked(rtr);
-
-	if (rcd == NULL)
-		return;
-
-	secs = lnet_router_check_interval(rtr);
-
-	CDEBUG(D_NET,
-	       "rtr %s %d: deadline %lu ping_notsent %d alive %d alive_count %d lp_ping_timestamp %lu\n",
-	       libcfs_nid2str(rtr->lp_nid), secs,
-	       rtr->lp_ping_deadline, rtr->lp_ping_notsent,
-	       rtr->lp_alive, rtr->lp_alive_count, rtr->lp_ping_timestamp);
-
-	if (secs != 0 && !rtr->lp_ping_notsent &&
-	    cfs_time_after(now, cfs_time_add(rtr->lp_ping_timestamp,
-					     cfs_time_seconds(secs)))) {
-		int rc;
-		lnet_process_id_t id;
-		lnet_handle_md_t mdh;
-
-		id.nid = rtr->lp_nid;
-		id.pid = LUSTRE_SRV_LNET_PID;
-		CDEBUG(D_NET, "Check: %s\n", libcfs_id2str(id));
-
-		rtr->lp_ping_notsent   = 1;
-		rtr->lp_ping_timestamp = now;
-
-		mdh = rcd->rcd_mdh;
-
-		if (rtr->lp_ping_deadline == 0) {
-			rtr->lp_ping_deadline =
-				cfs_time_shift(router_ping_timeout);
-		}
-
-		lnet_net_unlock(rtr->lp_cpt);
-
-		rc = LNetGet(LNET_NID_ANY, mdh, id, LNET_RESERVED_PORTAL,
-			     LNET_PROTO_PING_MATCHBITS, 0);
-
-		lnet_net_lock(rtr->lp_cpt);
-		if (rc != 0)
-			rtr->lp_ping_notsent = 0; /* no event pending */
-	}
-
-	lnet_peer_decref_locked(rtr);
-}
-
-int
-lnet_router_checker_start(void)
-{
-	int rc;
-	int eqsz;
-
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN);
-
-	if (check_routers_before_use &&
-	    dead_router_check_interval <= 0) {
-		LCONSOLE_ERROR_MSG(0x10a, "'dead_router_check_interval' must be set if 'check_routers_before_use' is set\n");
-		return -EINVAL;
-	}
-
-	if (!the_lnet.ln_routing &&
-	    live_router_check_interval <= 0 &&
-	    dead_router_check_interval <= 0)
-		return 0;
-
-	sema_init(&the_lnet.ln_rc_signal, 0);
-	/* EQ size doesn't matter; the callback is guaranteed to get every
-	 * event */
-	eqsz = 0;
-	rc = LNetEQAlloc(eqsz, lnet_router_checker_event,
-			 &the_lnet.ln_rc_eqh);
-	if (rc != 0) {
-		CERROR("Can't allocate EQ(%d): %d\n", eqsz, rc);
-		return -ENOMEM;
-	}
-
-	the_lnet.ln_rc_state = LNET_RC_STATE_RUNNING;
-	rc = PTR_ERR(kthread_run(lnet_router_checker,
-				 NULL, "router_checker"));
-	if (IS_ERR_VALUE(rc)) {
-		CERROR("Can't start router checker thread: %d\n", rc);
-		/* block until event callback signals exit */
-		down(&the_lnet.ln_rc_signal);
-		rc = LNetEQFree(the_lnet.ln_rc_eqh);
-		LASSERT(rc == 0);
-		the_lnet.ln_rc_state = LNET_RC_STATE_SHUTDOWN;
-		return -ENOMEM;
-	}
-
-	if (check_routers_before_use) {
-		/* Note that a helpful side-effect of pinging all known routers
-		 * at startup is that it makes them drop stale connections they
-		 * may have to a previous instance of me. */
-		lnet_wait_known_routerstate();
-	}
-
-	return 0;
-}
-
-void
-lnet_router_checker_stop(void)
-{
-	int rc;
-
-	if (the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN)
-		return;
-
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
-	the_lnet.ln_rc_state = LNET_RC_STATE_STOPPING;
-
-	/* block until event callback signals exit */
-	down(&the_lnet.ln_rc_signal);
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_SHUTDOWN);
-
-	rc = LNetEQFree(the_lnet.ln_rc_eqh);
-	LASSERT(rc == 0);
-}
-
-static void
-lnet_prune_rc_data(int wait_unlink)
-{
-	lnet_rc_data_t *rcd;
-	lnet_rc_data_t *tmp;
-	lnet_peer_t *lp;
-	struct list_head head;
-	int i = 2;
-
-	if (likely(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING &&
-		   list_empty(&the_lnet.ln_rcd_deathrow) &&
-		   list_empty(&the_lnet.ln_rcd_zombie)))
-		return;
-
-	INIT_LIST_HEAD(&head);
-
-	lnet_net_lock(LNET_LOCK_EX);
-
-	if (the_lnet.ln_rc_state != LNET_RC_STATE_RUNNING) {
-		/* router checker is stopping, prune all */
-		list_for_each_entry(lp, &the_lnet.ln_routers,
-					lp_rtr_list) {
-			if (lp->lp_rcd == NULL)
-				continue;
-
-			LASSERT(list_empty(&lp->lp_rcd->rcd_list));
-			list_add(&lp->lp_rcd->rcd_list,
-				     &the_lnet.ln_rcd_deathrow);
-			lp->lp_rcd = NULL;
-		}
-	}
-
-	/* unlink all RCDs on deathrow list */
-	list_splice_init(&the_lnet.ln_rcd_deathrow, &head);
-
-	if (!list_empty(&head)) {
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		list_for_each_entry(rcd, &head, rcd_list)
-			LNetMDUnlink(rcd->rcd_mdh);
-
-		lnet_net_lock(LNET_LOCK_EX);
-	}
-
-	list_splice_init(&head, &the_lnet.ln_rcd_zombie);
-
-	/* release all zombie RCDs */
-	while (!list_empty(&the_lnet.ln_rcd_zombie)) {
-		list_for_each_entry_safe(rcd, tmp, &the_lnet.ln_rcd_zombie,
-					     rcd_list) {
-			if (LNetHandleIsInvalid(rcd->rcd_mdh))
-				list_move(&rcd->rcd_list, &head);
-		}
-
-		wait_unlink = wait_unlink &&
-			      !list_empty(&the_lnet.ln_rcd_zombie);
-
-		lnet_net_unlock(LNET_LOCK_EX);
-
-		while (!list_empty(&head)) {
-			rcd = list_entry(head.next,
-					     lnet_rc_data_t, rcd_list);
-			list_del_init(&rcd->rcd_list);
-			lnet_destroy_rc_data(rcd);
-		}
-
-		if (!wait_unlink)
-			return;
-
-		i++;
-		CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET,
-		       "Waiting for rc buffers to unlink\n");
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1) / 4);
-
-		lnet_net_lock(LNET_LOCK_EX);
-	}
-
-	lnet_net_unlock(LNET_LOCK_EX);
-}
-
-static int
-lnet_router_checker(void *arg)
-{
-	lnet_peer_t *rtr;
-	struct list_head *entry;
-
-	cfs_block_allsigs();
-
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING);
-
-	while (the_lnet.ln_rc_state == LNET_RC_STATE_RUNNING) {
-		__u64 version;
-		int cpt;
-		int cpt2;
-
-		cpt = lnet_net_lock_current();
-rescan:
-		version = the_lnet.ln_routers_version;
-
-		list_for_each(entry, &the_lnet.ln_routers) {
-			rtr = list_entry(entry, lnet_peer_t, lp_rtr_list);
-
-			cpt2 = lnet_cpt_of_nid_locked(rtr->lp_nid);
-			if (cpt != cpt2) {
-				lnet_net_unlock(cpt);
-				cpt = cpt2;
-				lnet_net_lock(cpt);
-				/* the routers list has changed */
-				if (version != the_lnet.ln_routers_version)
-					goto rescan;
-			}
-
-			lnet_ping_router_locked(rtr);
-
-			/* NB dropped lock */
-			if (version != the_lnet.ln_routers_version) {
-				/* the routers list has changed */
-				goto rescan;
-			}
-		}
-
-		if (the_lnet.ln_routing)
-			lnet_update_ni_status_locked();
-
-		lnet_net_unlock(cpt);
-
-		lnet_prune_rc_data(0); /* don't wait for UNLINK */
-
-		/* Call schedule_timeout() here always adds 1 to load average
-		 * because kernel counts # active tasks as nr_running
-		 * + nr_uninterruptible. */
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1));
-	}
-
-	LASSERT(the_lnet.ln_rc_state == LNET_RC_STATE_STOPPING);
-
-	lnet_prune_rc_data(1); /* wait for UNLINK */
-
-	the_lnet.ln_rc_state = LNET_RC_STATE_SHUTDOWN;
-	up(&the_lnet.ln_rc_signal);
-	/* The unlink event callback will signal final completion */
-	return 0;
-}
-
-static void
-lnet_destroy_rtrbuf(lnet_rtrbuf_t *rb, int npages)
-{
-	int sz = offsetof(lnet_rtrbuf_t, rb_kiov[npages]);
-
-	while (--npages >= 0)
-		__free_page(rb->rb_kiov[npages].kiov_page);
-
-	LIBCFS_FREE(rb, sz);
-}
-
-static lnet_rtrbuf_t *
-lnet_new_rtrbuf(lnet_rtrbufpool_t *rbp, int cpt)
-{
-	int npages = rbp->rbp_npages;
-	int sz = offsetof(lnet_rtrbuf_t, rb_kiov[npages]);
-	struct page *page;
-	lnet_rtrbuf_t *rb;
-	int i;
-
-	LIBCFS_CPT_ALLOC(rb, lnet_cpt_table(), cpt, sz);
-	if (rb == NULL)
-		return NULL;
-
-	rb->rb_pool = rbp;
-
-	for (i = 0; i < npages; i++) {
-		page = alloc_pages_node(
-				cfs_cpt_spread_node(lnet_cpt_table(), cpt),
-				__GFP_ZERO | GFP_IOFS, 0);
-		if (page == NULL) {
-			while (--i >= 0)
-				__free_page(rb->rb_kiov[i].kiov_page);
-
-			LIBCFS_FREE(rb, sz);
-			return NULL;
-		}
-
-		rb->rb_kiov[i].kiov_len = PAGE_CACHE_SIZE;
-		rb->rb_kiov[i].kiov_offset = 0;
-		rb->rb_kiov[i].kiov_page = page;
-	}
-
-	return rb;
-}
-
-static void
-lnet_rtrpool_free_bufs(lnet_rtrbufpool_t *rbp)
-{
-	int npages = rbp->rbp_npages;
-	int nbuffers = 0;
-	lnet_rtrbuf_t *rb;
-
-	if (rbp->rbp_nbuffers == 0) /* not initialized or already freed */
-		return;
-
-	LASSERT(list_empty(&rbp->rbp_msgs));
-	LASSERT(rbp->rbp_credits == rbp->rbp_nbuffers);
-
-	while (!list_empty(&rbp->rbp_bufs)) {
-		LASSERT(rbp->rbp_credits > 0);
-
-		rb = list_entry(rbp->rbp_bufs.next,
-				    lnet_rtrbuf_t, rb_list);
-		list_del(&rb->rb_list);
-		lnet_destroy_rtrbuf(rb, npages);
-		nbuffers++;
-	}
-
-	LASSERT(rbp->rbp_nbuffers == nbuffers);
-	LASSERT(rbp->rbp_credits == nbuffers);
-
-	rbp->rbp_nbuffers = rbp->rbp_credits = 0;
-}
-
-static int
-lnet_rtrpool_alloc_bufs(lnet_rtrbufpool_t *rbp, int nbufs, int cpt)
-{
-	lnet_rtrbuf_t *rb;
-	int i;
-
-	if (rbp->rbp_nbuffers != 0) {
-		LASSERT(rbp->rbp_nbuffers == nbufs);
-		return 0;
-	}
-
-	for (i = 0; i < nbufs; i++) {
-		rb = lnet_new_rtrbuf(rbp, cpt);
-
-		if (rb == NULL) {
-			CERROR("Failed to allocate %d router bufs of %d pages\n",
-			       nbufs, rbp->rbp_npages);
-			return -ENOMEM;
-		}
-
-		rbp->rbp_nbuffers++;
-		rbp->rbp_credits++;
-		rbp->rbp_mincredits++;
-		list_add(&rb->rb_list, &rbp->rbp_bufs);
-
-		/* No allocation "under fire" */
-		/* Otherwise we'd need code to schedule blocked msgs etc */
-		LASSERT(!the_lnet.ln_routing);
-	}
-
-	LASSERT(rbp->rbp_credits == nbufs);
-	return 0;
-}
-
-static void
-lnet_rtrpool_init(lnet_rtrbufpool_t *rbp, int npages)
-{
-	INIT_LIST_HEAD(&rbp->rbp_msgs);
-	INIT_LIST_HEAD(&rbp->rbp_bufs);
-
-	rbp->rbp_npages = npages;
-	rbp->rbp_credits = 0;
-	rbp->rbp_mincredits = 0;
-}
-
-void
-lnet_rtrpools_free(void)
-{
-	lnet_rtrbufpool_t *rtrp;
-	int i;
-
-	if (the_lnet.ln_rtrpools == NULL) /* uninitialized or freed */
-		return;
-
-	cfs_percpt_for_each(rtrp, i, the_lnet.ln_rtrpools) {
-		lnet_rtrpool_free_bufs(&rtrp[0]);
-		lnet_rtrpool_free_bufs(&rtrp[1]);
-		lnet_rtrpool_free_bufs(&rtrp[2]);
-	}
-
-	cfs_percpt_free(the_lnet.ln_rtrpools);
-	the_lnet.ln_rtrpools = NULL;
-}
-
-static int
-lnet_nrb_tiny_calculate(int npages)
-{
-	int nrbs = LNET_NRB_TINY;
-
-	if (tiny_router_buffers < 0) {
-		LCONSOLE_ERROR_MSG(0x10c,
-				   "tiny_router_buffers=%d invalid when routing enabled\n",
-				   tiny_router_buffers);
-		return -1;
-	}
-
-	if (tiny_router_buffers > 0)
-		nrbs = tiny_router_buffers;
-
-	nrbs /= LNET_CPT_NUMBER;
-	return max(nrbs, LNET_NRB_TINY_MIN);
-}
-
-static int
-lnet_nrb_small_calculate(int npages)
-{
-	int nrbs = LNET_NRB_SMALL;
-
-	if (small_router_buffers < 0) {
-		LCONSOLE_ERROR_MSG(0x10c,
-				   "small_router_buffers=%d invalid when routing enabled\n",
-				   small_router_buffers);
-		return -1;
-	}
-
-	if (small_router_buffers > 0)
-		nrbs = small_router_buffers;
-
-	nrbs /= LNET_CPT_NUMBER;
-	return max(nrbs, LNET_NRB_SMALL_MIN);
-}
-
-static int
-lnet_nrb_large_calculate(int npages)
-{
-	int nrbs = LNET_NRB_LARGE;
-
-	if (large_router_buffers < 0) {
-		LCONSOLE_ERROR_MSG(0x10c,
-				   "large_router_buffers=%d invalid when routing enabled\n",
-				   large_router_buffers);
-		return -1;
-	}
-
-	if (large_router_buffers > 0)
-		nrbs = large_router_buffers;
-
-	nrbs /= LNET_CPT_NUMBER;
-	return max(nrbs, LNET_NRB_LARGE_MIN);
-}
-
-int
-lnet_rtrpools_alloc(int im_a_router)
-{
-	lnet_rtrbufpool_t *rtrp;
-	int large_pages;
-	int small_pages = 1;
-	int nrb_tiny;
-	int nrb_small;
-	int nrb_large;
-	int rc;
-	int i;
-
-	large_pages = (LNET_MTU + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-
-	if (!strcmp(forwarding, "")) {
-		/* not set either way */
-		if (!im_a_router)
-			return 0;
-	} else if (!strcmp(forwarding, "disabled")) {
-		/* explicitly disabled */
-		return 0;
-	} else if (!strcmp(forwarding, "enabled")) {
-		/* explicitly enabled */
-	} else {
-		LCONSOLE_ERROR_MSG(0x10b, "'forwarding' not set to either 'enabled' or 'disabled'\n");
-		return -EINVAL;
-	}
-
-	nrb_tiny = lnet_nrb_tiny_calculate(0);
-	if (nrb_tiny < 0)
-		return -EINVAL;
-
-	nrb_small = lnet_nrb_small_calculate(small_pages);
-	if (nrb_small < 0)
-		return -EINVAL;
-
-	nrb_large = lnet_nrb_large_calculate(large_pages);
-	if (nrb_large < 0)
-		return -EINVAL;
-
-	the_lnet.ln_rtrpools = cfs_percpt_alloc(lnet_cpt_table(),
-						LNET_NRBPOOLS *
-						sizeof(lnet_rtrbufpool_t));
-	if (the_lnet.ln_rtrpools == NULL) {
-		LCONSOLE_ERROR_MSG(0x10c,
-				   "Failed to initialize router buffe pool\n");
-		return -ENOMEM;
-	}
-
-	cfs_percpt_for_each(rtrp, i, the_lnet.ln_rtrpools) {
-		lnet_rtrpool_init(&rtrp[0], 0);
-		rc = lnet_rtrpool_alloc_bufs(&rtrp[0], nrb_tiny, i);
-		if (rc != 0)
-			goto failed;
-
-		lnet_rtrpool_init(&rtrp[1], small_pages);
-		rc = lnet_rtrpool_alloc_bufs(&rtrp[1], nrb_small, i);
-		if (rc != 0)
-			goto failed;
-
-		lnet_rtrpool_init(&rtrp[2], large_pages);
-		rc = lnet_rtrpool_alloc_bufs(&rtrp[2], nrb_large, i);
-		if (rc != 0)
-			goto failed;
-	}
-
-	lnet_net_lock(LNET_LOCK_EX);
-	the_lnet.ln_routing = 1;
-	lnet_net_unlock(LNET_LOCK_EX);
-
-	return 0;
-
- failed:
-	lnet_rtrpools_free();
-	return rc;
-}
-
-int
-lnet_notify(lnet_ni_t *ni, lnet_nid_t nid, int alive, unsigned long when)
-{
-	struct lnet_peer *lp = NULL;
-	unsigned long now = cfs_time_current();
-	int cpt = lnet_cpt_of_nid(nid);
-
-	LASSERT(!in_interrupt ());
-
-	CDEBUG(D_NET, "%s notifying %s: %s\n",
-		(ni == NULL) ? "userspace" : libcfs_nid2str(ni->ni_nid),
-		libcfs_nid2str(nid),
-		alive ? "up" : "down");
-
-	if (ni != NULL &&
-	    LNET_NIDNET(ni->ni_nid) != LNET_NIDNET(nid)) {
-		CWARN("Ignoring notification of %s %s by %s (different net)\n",
-			libcfs_nid2str(nid), alive ? "birth" : "death",
-			libcfs_nid2str(ni->ni_nid));
-		return -EINVAL;
-	}
-
-	/* can't do predictions... */
-	if (cfs_time_after(when, now)) {
-		CWARN("Ignoring prediction from %s of %s %s %ld seconds in the future\n",
-		      (ni == NULL) ? "userspace" : libcfs_nid2str(ni->ni_nid),
-		      libcfs_nid2str(nid), alive ? "up" : "down",
-		      cfs_duration_sec(cfs_time_sub(when, now)));
-		return -EINVAL;
-	}
-
-	if (ni != NULL && !alive &&	     /* LND telling me she's down */
-	    !auto_down) {		       /* auto-down disabled */
-		CDEBUG(D_NET, "Auto-down disabled\n");
-		return 0;
-	}
-
-	lnet_net_lock(cpt);
-
-	if (the_lnet.ln_shutdown) {
-		lnet_net_unlock(cpt);
-		return -ESHUTDOWN;
-	}
-
-	lp = lnet_find_peer_locked(the_lnet.ln_peer_tables[cpt], nid);
-	if (lp == NULL) {
-		/* nid not found */
-		lnet_net_unlock(cpt);
-		CDEBUG(D_NET, "%s not found\n", libcfs_nid2str(nid));
-		return 0;
-	}
-
-	/* We can't fully trust LND on reporting exact peer last_alive
-	 * if he notifies us about dead peer. For example ksocklnd can
-	 * call us with when == _time_when_the_node_was_booted_ if
-	 * no connections were successfully established */
-	if (ni != NULL && !alive && when < lp->lp_last_alive)
-		when = lp->lp_last_alive;
-
-	lnet_notify_locked(lp, ni == NULL, alive, when);
-
-	lnet_ni_notify_locked(ni, lp);
-
-	lnet_peer_decref_locked(lp);
-
-	lnet_net_unlock(cpt);
-	return 0;
-}
-EXPORT_SYMBOL(lnet_notify);
diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c
deleted file mode 100644
index 40f418b82960..000000000000
--- a/drivers/staging/lustre/lnet/lnet/router_proc.c
+++ /dev/null
@@ -1,957 +0,0 @@
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- *
- *   This file is part of Portals
- *   http://sourceforge.net/projects/sandiaportals/
- *
- *   Portals is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Portals is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Portals; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lib-lnet.h"
-
-#if  defined(LNET_ROUTER)
-
-/* This is really lnet_proc.c. You might need to update sanity test 215
- * if any file format is changed. */
-
-static struct ctl_table_header *lnet_table_header;
-
-#define LNET_LOFFT_BITS		(sizeof(loff_t) * 8)
-/*
- * NB: max allowed LNET_CPT_BITS is 8 on 64-bit system and 2 on 32-bit system
- */
-#define LNET_PROC_CPT_BITS	(LNET_CPT_BITS + 1)
-/* change version, 16 bits or 8 bits */
-#define LNET_PROC_VER_BITS	max_t(size_t, min_t(size_t, LNET_LOFFT_BITS, 64) / 4, 8)
-
-#define LNET_PROC_HASH_BITS	LNET_PEER_HASH_BITS
-/*
- * bits for peer hash offset
- * NB: we don't use the highest bit of *ppos because it's signed
- */
-#define LNET_PROC_HOFF_BITS	(LNET_LOFFT_BITS -       \
-				 LNET_PROC_CPT_BITS -    \
-				 LNET_PROC_VER_BITS -    \
-				 LNET_PROC_HASH_BITS - 1)
-/* bits for hash index + position */
-#define LNET_PROC_HPOS_BITS	(LNET_PROC_HASH_BITS + LNET_PROC_HOFF_BITS)
-/* bits for peer hash table + hash version */
-#define LNET_PROC_VPOS_BITS	(LNET_PROC_HPOS_BITS + LNET_PROC_VER_BITS)
-
-#define LNET_PROC_CPT_MASK	((1ULL << LNET_PROC_CPT_BITS) - 1)
-#define LNET_PROC_VER_MASK	((1ULL << LNET_PROC_VER_BITS) - 1)
-#define LNET_PROC_HASH_MASK	((1ULL << LNET_PROC_HASH_BITS) - 1)
-#define LNET_PROC_HOFF_MASK	((1ULL << LNET_PROC_HOFF_BITS) - 1)
-
-#define LNET_PROC_CPT_GET(pos)				\
-	(int)(((pos) >> LNET_PROC_VPOS_BITS) & LNET_PROC_CPT_MASK)
-
-#define LNET_PROC_VER_GET(pos)				\
-	(int)(((pos) >> LNET_PROC_HPOS_BITS) & LNET_PROC_VER_MASK)
-
-#define LNET_PROC_HASH_GET(pos)				\
-	(int)(((pos) >> LNET_PROC_HOFF_BITS) & LNET_PROC_HASH_MASK)
-
-#define LNET_PROC_HOFF_GET(pos)				\
-	(int)((pos) & LNET_PROC_HOFF_MASK)
-
-#define LNET_PROC_POS_MAKE(cpt, ver, hash, off)		\
-	(((((loff_t)(cpt)) & LNET_PROC_CPT_MASK) << LNET_PROC_VPOS_BITS) |   \
-	((((loff_t)(ver)) & LNET_PROC_VER_MASK) << LNET_PROC_HPOS_BITS) |   \
-	((((loff_t)(hash)) & LNET_PROC_HASH_MASK) << LNET_PROC_HOFF_BITS) | \
-	((off) & LNET_PROC_HOFF_MASK))
-
-#define LNET_PROC_VERSION(v)	((unsigned int)((v) & LNET_PROC_VER_MASK))
-
-static int proc_call_handler(void *data, int write, loff_t *ppos,
-		void __user *buffer, size_t *lenp,
-		int (*handler)(void *data, int write,
-		loff_t pos, void __user *buffer, int len))
-{
-	int rc = handler(data, write, *ppos, buffer, *lenp);
-
-	if (rc < 0)
-		return rc;
-
-	if (write) {
-		*ppos += *lenp;
-	} else {
-		*lenp = rc;
-		*ppos += rc;
-	}
-	return 0;
-}
-
-static int __proc_lnet_stats(void *data, int write,
-			     loff_t pos, void __user *buffer, int nob)
-{
-	int rc;
-	lnet_counters_t *ctrs;
-	int len;
-	char *tmpstr;
-	const int tmpsiz = 256; /* 7 %u and 4 %llu */
-
-	if (write) {
-		lnet_counters_reset();
-		return 0;
-	}
-
-	/* read */
-
-	LIBCFS_ALLOC(ctrs, sizeof(*ctrs));
-	if (ctrs == NULL)
-		return -ENOMEM;
-
-	LIBCFS_ALLOC(tmpstr, tmpsiz);
-	if (tmpstr == NULL) {
-		LIBCFS_FREE(ctrs, sizeof(*ctrs));
-		return -ENOMEM;
-	}
-
-	lnet_counters_get(ctrs);
-
-	len = snprintf(tmpstr, tmpsiz,
-		       "%u %u %u %u %u %u %u %llu %llu %llu %llu",
-		       ctrs->msgs_alloc, ctrs->msgs_max,
-		       ctrs->errors,
-		       ctrs->send_count, ctrs->recv_count,
-		       ctrs->route_count, ctrs->drop_count,
-		       ctrs->send_length, ctrs->recv_length,
-		       ctrs->route_length, ctrs->drop_length);
-
-	if (pos >= min_t(int, len, strlen(tmpstr)))
-		rc = 0;
-	else
-		rc = cfs_trace_copyout_string(buffer, nob,
-					      tmpstr + pos, "\n");
-
-	LIBCFS_FREE(tmpstr, tmpsiz);
-	LIBCFS_FREE(ctrs, sizeof(*ctrs));
-	return rc;
-}
-
-static int proc_lnet_stats(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_lnet_stats);
-}
-
-static int proc_lnet_routes(struct ctl_table *table, int write,
-			    void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	const int tmpsiz = 256;
-	char *tmpstr;
-	char *s;
-	int rc = 0;
-	int len;
-	int ver;
-	int off;
-
-	CLASSERT(sizeof(loff_t) >= 4);
-
-	off = LNET_PROC_HOFF_GET(*ppos);
-	ver = LNET_PROC_VER_GET(*ppos);
-
-	LASSERT(!write);
-
-	if (*lenp == 0)
-		return 0;
-
-	LIBCFS_ALLOC(tmpstr, tmpsiz);
-	if (tmpstr == NULL)
-		return -ENOMEM;
-
-	s = tmpstr; /* points to current position in tmpstr[] */
-
-	if (*ppos == 0) {
-		s += snprintf(s, tmpstr + tmpsiz - s, "Routing %s\n",
-			      the_lnet.ln_routing ? "enabled" : "disabled");
-		LASSERT(tmpstr + tmpsiz - s > 0);
-
-		s += snprintf(s, tmpstr + tmpsiz - s, "%-8s %4s %8s %7s %s\n",
-			      "net", "hops", "priority", "state", "router");
-		LASSERT(tmpstr + tmpsiz - s > 0);
-
-		lnet_net_lock(0);
-		ver = (unsigned int)the_lnet.ln_remote_nets_version;
-		lnet_net_unlock(0);
-		*ppos = LNET_PROC_POS_MAKE(0, ver, 0, off);
-	} else {
-		struct list_head *n;
-		struct list_head *r;
-		lnet_route_t *route = NULL;
-		lnet_remotenet_t *rnet  = NULL;
-		int skip  = off - 1;
-		struct list_head *rn_list;
-		int i;
-
-		lnet_net_lock(0);
-
-		if (ver != LNET_PROC_VERSION(the_lnet.ln_remote_nets_version)) {
-			lnet_net_unlock(0);
-			LIBCFS_FREE(tmpstr, tmpsiz);
-			return -ESTALE;
-		}
-
-		for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE && route == NULL;
-		     i++) {
-			rn_list = &the_lnet.ln_remote_nets_hash[i];
-
-			n = rn_list->next;
-
-			while (n != rn_list && route == NULL) {
-				rnet = list_entry(n, lnet_remotenet_t,
-						      lrn_list);
-
-				r = rnet->lrn_routes.next;
-
-				while (r != &rnet->lrn_routes) {
-					lnet_route_t *re =
-						list_entry(r, lnet_route_t,
-							       lr_list);
-					if (skip == 0) {
-						route = re;
-						break;
-					}
-
-					skip--;
-					r = r->next;
-				}
-
-				n = n->next;
-			}
-		}
-
-		if (route != NULL) {
-			__u32 net = rnet->lrn_net;
-			unsigned int hops = route->lr_hops;
-			unsigned int priority = route->lr_priority;
-			lnet_nid_t nid = route->lr_gateway->lp_nid;
-			int alive = route->lr_gateway->lp_alive;
-
-			s += snprintf(s, tmpstr + tmpsiz - s,
-				      "%-8s %4u %8u %7s %s\n",
-				      libcfs_net2str(net), hops,
-				      priority,
-				      alive ? "up" : "down",
-				      libcfs_nid2str(nid));
-			LASSERT(tmpstr + tmpsiz - s > 0);
-		}
-
-		lnet_net_unlock(0);
-	}
-
-	len = s - tmpstr;     /* how many bytes was written */
-
-	if (len > *lenp) {    /* linux-supplied buffer is too small */
-		rc = -EINVAL;
-	} else if (len > 0) { /* wrote something */
-		if (copy_to_user(buffer, tmpstr, len))
-			rc = -EFAULT;
-		else {
-			off += 1;
-			*ppos = LNET_PROC_POS_MAKE(0, ver, 0, off);
-		}
-	}
-
-	LIBCFS_FREE(tmpstr, tmpsiz);
-
-	if (rc == 0)
-		*lenp = len;
-
-	return rc;
-}
-
-static int proc_lnet_routers(struct ctl_table *table, int write,
-			     void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	int rc = 0;
-	char *tmpstr;
-	char *s;
-	const int tmpsiz = 256;
-	int len;
-	int ver;
-	int off;
-
-	off = LNET_PROC_HOFF_GET(*ppos);
-	ver = LNET_PROC_VER_GET(*ppos);
-
-	LASSERT(!write);
-
-	if (*lenp == 0)
-		return 0;
-
-	LIBCFS_ALLOC(tmpstr, tmpsiz);
-	if (tmpstr == NULL)
-		return -ENOMEM;
-
-	s = tmpstr; /* points to current position in tmpstr[] */
-
-	if (*ppos == 0) {
-		s += snprintf(s, tmpstr + tmpsiz - s,
-			      "%-4s %7s %9s %6s %12s %9s %8s %7s %s\n",
-			      "ref", "rtr_ref", "alive_cnt", "state",
-			      "last_ping", "ping_sent", "deadline",
-			      "down_ni", "router");
-		LASSERT(tmpstr + tmpsiz - s > 0);
-
-		lnet_net_lock(0);
-		ver = (unsigned int)the_lnet.ln_routers_version;
-		lnet_net_unlock(0);
-		*ppos = LNET_PROC_POS_MAKE(0, ver, 0, off);
-	} else {
-		struct list_head *r;
-		struct lnet_peer *peer = NULL;
-		int skip = off - 1;
-
-		lnet_net_lock(0);
-
-		if (ver != LNET_PROC_VERSION(the_lnet.ln_routers_version)) {
-			lnet_net_unlock(0);
-
-			LIBCFS_FREE(tmpstr, tmpsiz);
-			return -ESTALE;
-		}
-
-		r = the_lnet.ln_routers.next;
-
-		while (r != &the_lnet.ln_routers) {
-			lnet_peer_t *lp = list_entry(r, lnet_peer_t,
-							 lp_rtr_list);
-
-			if (skip == 0) {
-				peer = lp;
-				break;
-			}
-
-			skip--;
-			r = r->next;
-		}
-
-		if (peer != NULL) {
-			lnet_nid_t nid = peer->lp_nid;
-			unsigned long now = cfs_time_current();
-			unsigned long deadline = peer->lp_ping_deadline;
-			int nrefs = peer->lp_refcount;
-			int nrtrrefs = peer->lp_rtr_refcount;
-			int alive_cnt = peer->lp_alive_count;
-			int alive = peer->lp_alive;
-			int pingsent = !peer->lp_ping_notsent;
-			int last_ping = cfs_duration_sec(cfs_time_sub(now,
-						     peer->lp_ping_timestamp));
-			int down_ni = 0;
-			lnet_route_t *rtr;
-
-			if ((peer->lp_ping_feats &
-			     LNET_PING_FEAT_NI_STATUS) != 0) {
-				list_for_each_entry(rtr, &peer->lp_routes,
-							lr_gwlist) {
-					/* downis on any route should be the
-					 * number of downis on the gateway */
-					if (rtr->lr_downis != 0) {
-						down_ni = rtr->lr_downis;
-						break;
-					}
-				}
-			}
-
-			if (deadline == 0)
-				s += snprintf(s, tmpstr + tmpsiz - s,
-					      "%-4d %7d %9d %6s %12d %9d %8s %7d %s\n",
-					      nrefs, nrtrrefs, alive_cnt,
-					      alive ? "up" : "down", last_ping,
-					      pingsent, "NA", down_ni,
-					      libcfs_nid2str(nid));
-			else
-				s += snprintf(s, tmpstr + tmpsiz - s,
-					      "%-4d %7d %9d %6s %12d %9d %8lu %7d %s\n",
-					      nrefs, nrtrrefs, alive_cnt,
-					      alive ? "up" : "down", last_ping,
-					      pingsent,
-					      cfs_duration_sec(cfs_time_sub(deadline, now)),
-					      down_ni, libcfs_nid2str(nid));
-			LASSERT(tmpstr + tmpsiz - s > 0);
-		}
-
-		lnet_net_unlock(0);
-	}
-
-	len = s - tmpstr;     /* how many bytes was written */
-
-	if (len > *lenp) {    /* linux-supplied buffer is too small */
-		rc = -EINVAL;
-	} else if (len > 0) { /* wrote something */
-		if (copy_to_user(buffer, tmpstr, len))
-			rc = -EFAULT;
-		else {
-			off += 1;
-			*ppos = LNET_PROC_POS_MAKE(0, ver, 0, off);
-		}
-	}
-
-	LIBCFS_FREE(tmpstr, tmpsiz);
-
-	if (rc == 0)
-		*lenp = len;
-
-	return rc;
-}
-
-static int proc_lnet_peers(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	const int tmpsiz  = 256;
-	struct lnet_peer_table *ptable;
-	char *tmpstr;
-	char *s;
-	int cpt  = LNET_PROC_CPT_GET(*ppos);
-	int ver  = LNET_PROC_VER_GET(*ppos);
-	int hash = LNET_PROC_HASH_GET(*ppos);
-	int hoff = LNET_PROC_HOFF_GET(*ppos);
-	int rc = 0;
-	int len;
-
-	CLASSERT(LNET_PROC_HASH_BITS >= LNET_PEER_HASH_BITS);
-	LASSERT(!write);
-
-	if (*lenp == 0)
-		return 0;
-
-	if (cpt >= LNET_CPT_NUMBER) {
-		*lenp = 0;
-		return 0;
-	}
-
-	LIBCFS_ALLOC(tmpstr, tmpsiz);
-	if (tmpstr == NULL)
-		return -ENOMEM;
-
-	s = tmpstr; /* points to current position in tmpstr[] */
-
-	if (*ppos == 0) {
-		s += snprintf(s, tmpstr + tmpsiz - s,
-			      "%-24s %4s %5s %5s %5s %5s %5s %5s %5s %s\n",
-			      "nid", "refs", "state", "last", "max",
-			      "rtr", "min", "tx", "min", "queue");
-		LASSERT(tmpstr + tmpsiz - s > 0);
-
-		hoff++;
-	} else {
-		struct lnet_peer *peer;
-		struct list_head *p;
-		int skip;
- again:
-		p = NULL;
-		peer = NULL;
-		skip = hoff - 1;
-
-		lnet_net_lock(cpt);
-		ptable = the_lnet.ln_peer_tables[cpt];
-		if (hoff == 1)
-			ver = LNET_PROC_VERSION(ptable->pt_version);
-
-		if (ver != LNET_PROC_VERSION(ptable->pt_version)) {
-			lnet_net_unlock(cpt);
-			LIBCFS_FREE(tmpstr, tmpsiz);
-			return -ESTALE;
-		}
-
-		while (hash < LNET_PEER_HASH_SIZE) {
-			if (p == NULL)
-				p = ptable->pt_hash[hash].next;
-
-			while (p != &ptable->pt_hash[hash]) {
-				lnet_peer_t *lp = list_entry(p, lnet_peer_t,
-								 lp_hashlist);
-				if (skip == 0) {
-					peer = lp;
-
-					/* minor optimization: start from idx+1
-					 * on next iteration if we've just
-					 * drained lp_hashlist */
-					if (lp->lp_hashlist.next ==
-					    &ptable->pt_hash[hash]) {
-						hoff = 1;
-						hash++;
-					} else {
-						hoff++;
-					}
-
-					break;
-				}
-
-				skip--;
-				p = lp->lp_hashlist.next;
-			}
-
-			if (peer != NULL)
-				break;
-
-			p = NULL;
-			hoff = 1;
-			hash++;
-		}
-
-		if (peer != NULL) {
-			lnet_nid_t nid = peer->lp_nid;
-			int nrefs = peer->lp_refcount;
-			int lastalive = -1;
-			char *aliveness = "NA";
-			int maxcr = peer->lp_ni->ni_peertxcredits;
-			int txcr = peer->lp_txcredits;
-			int mintxcr = peer->lp_mintxcredits;
-			int rtrcr = peer->lp_rtrcredits;
-			int minrtrcr = peer->lp_minrtrcredits;
-			int txqnob = peer->lp_txqnob;
-
-			if (lnet_isrouter(peer) ||
-			    lnet_peer_aliveness_enabled(peer))
-				aliveness = peer->lp_alive ? "up" : "down";
-
-			if (lnet_peer_aliveness_enabled(peer)) {
-				unsigned long now = cfs_time_current();
-				long delta;
-
-				delta = cfs_time_sub(now, peer->lp_last_alive);
-				lastalive = cfs_duration_sec(delta);
-
-				/* No need to mess up peers contents with
-				 * arbitrarily long integers - it suffices to
-				 * know that lastalive is more than 10000s old
-				 */
-				if (lastalive >= 10000)
-					lastalive = 9999;
-			}
-
-			lnet_net_unlock(cpt);
-
-			s += snprintf(s, tmpstr + tmpsiz - s,
-				      "%-24s %4d %5s %5d %5d %5d %5d %5d %5d %d\n",
-				      libcfs_nid2str(nid), nrefs, aliveness,
-				      lastalive, maxcr, rtrcr, minrtrcr, txcr,
-				      mintxcr, txqnob);
-			LASSERT(tmpstr + tmpsiz - s > 0);
-
-		} else { /* peer is NULL */
-			lnet_net_unlock(cpt);
-		}
-
-		if (hash == LNET_PEER_HASH_SIZE) {
-			cpt++;
-			hash = 0;
-			hoff = 1;
-			if (peer == NULL && cpt < LNET_CPT_NUMBER)
-				goto again;
-		}
-	}
-
-	len = s - tmpstr;     /* how many bytes was written */
-
-	if (len > *lenp) {    /* linux-supplied buffer is too small */
-		rc = -EINVAL;
-	} else if (len > 0) { /* wrote something */
-		if (copy_to_user(buffer, tmpstr, len))
-			rc = -EFAULT;
-		else
-			*ppos = LNET_PROC_POS_MAKE(cpt, ver, hash, hoff);
-	}
-
-	LIBCFS_FREE(tmpstr, tmpsiz);
-
-	if (rc == 0)
-		*lenp = len;
-
-	return rc;
-}
-
-static int __proc_lnet_buffers(void *data, int write,
-			       loff_t pos, void __user *buffer, int nob)
-{
-	char *s;
-	char *tmpstr;
-	int tmpsiz;
-	int idx;
-	int len;
-	int rc;
-	int i;
-
-	LASSERT(!write);
-
-	/* (4 %d) * 4 * LNET_CPT_NUMBER */
-	tmpsiz = 64 * (LNET_NRBPOOLS + 1) * LNET_CPT_NUMBER;
-	LIBCFS_ALLOC(tmpstr, tmpsiz);
-	if (tmpstr == NULL)
-		return -ENOMEM;
-
-	s = tmpstr; /* points to current position in tmpstr[] */
-
-	s += snprintf(s, tmpstr + tmpsiz - s,
-		      "%5s %5s %7s %7s\n",
-		      "pages", "count", "credits", "min");
-	LASSERT(tmpstr + tmpsiz - s > 0);
-
-	if (the_lnet.ln_rtrpools == NULL)
-		goto out; /* I'm not a router */
-
-	for (idx = 0; idx < LNET_NRBPOOLS; idx++) {
-		lnet_rtrbufpool_t *rbp;
-
-		lnet_net_lock(LNET_LOCK_EX);
-		cfs_percpt_for_each(rbp, i, the_lnet.ln_rtrpools) {
-			s += snprintf(s, tmpstr + tmpsiz - s,
-				      "%5d %5d %7d %7d\n",
-				      rbp[idx].rbp_npages,
-				      rbp[idx].rbp_nbuffers,
-				      rbp[idx].rbp_credits,
-				      rbp[idx].rbp_mincredits);
-			LASSERT(tmpstr + tmpsiz - s > 0);
-		}
-		lnet_net_unlock(LNET_LOCK_EX);
-	}
-
- out:
-	len = s - tmpstr;
-
-	if (pos >= min_t(int, len, strlen(tmpstr)))
-		rc = 0;
-	else
-		rc = cfs_trace_copyout_string(buffer, nob,
-					      tmpstr + pos, NULL);
-
-	LIBCFS_FREE(tmpstr, tmpsiz);
-	return rc;
-}
-
-static int proc_lnet_buffers(struct ctl_table *table, int write,
-			     void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_lnet_buffers);
-}
-
-static int proc_lnet_nis(struct ctl_table *table, int write,
-			 void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	int tmpsiz = 128 * LNET_CPT_NUMBER;
-	int rc = 0;
-	char *tmpstr;
-	char *s;
-	int len;
-
-	LASSERT(!write);
-
-	if (*lenp == 0)
-		return 0;
-
-	LIBCFS_ALLOC(tmpstr, tmpsiz);
-	if (tmpstr == NULL)
-		return -ENOMEM;
-
-	s = tmpstr; /* points to current position in tmpstr[] */
-
-	if (*ppos == 0) {
-		s += snprintf(s, tmpstr + tmpsiz - s,
-			      "%-24s %6s %5s %4s %4s %4s %5s %5s %5s\n",
-			      "nid", "status", "alive", "refs", "peer",
-			      "rtr", "max", "tx", "min");
-		LASSERT(tmpstr + tmpsiz - s > 0);
-	} else {
-		struct list_head *n;
-		lnet_ni_t *ni   = NULL;
-		int skip = *ppos - 1;
-
-		lnet_net_lock(0);
-
-		n = the_lnet.ln_nis.next;
-
-		while (n != &the_lnet.ln_nis) {
-			lnet_ni_t *a_ni = list_entry(n, lnet_ni_t, ni_list);
-
-			if (skip == 0) {
-				ni = a_ni;
-				break;
-			}
-
-			skip--;
-			n = n->next;
-		}
-
-		if (ni != NULL) {
-			struct lnet_tx_queue *tq;
-			char *stat;
-			long now = get_seconds();
-			int last_alive = -1;
-			int i;
-			int j;
-
-			if (the_lnet.ln_routing)
-				last_alive = now - ni->ni_last_alive;
-
-			/* @lo forever alive */
-			if (ni->ni_lnd->lnd_type == LOLND)
-				last_alive = 0;
-
-			lnet_ni_lock(ni);
-			LASSERT(ni->ni_status != NULL);
-			stat = (ni->ni_status->ns_status ==
-				LNET_NI_STATUS_UP) ? "up" : "down";
-			lnet_ni_unlock(ni);
-
-			/* we actually output credits information for
-			 * TX queue of each partition */
-			cfs_percpt_for_each(tq, i, ni->ni_tx_queues) {
-				for (j = 0; ni->ni_cpts != NULL &&
-				     j < ni->ni_ncpts; j++) {
-					if (i == ni->ni_cpts[j])
-						break;
-				}
-
-				if (j == ni->ni_ncpts)
-					continue;
-
-				if (i != 0)
-					lnet_net_lock(i);
-
-				s += snprintf(s, tmpstr + tmpsiz - s,
-				      "%-24s %6s %5d %4d %4d %4d %5d %5d %5d\n",
-				      libcfs_nid2str(ni->ni_nid), stat,
-				      last_alive, *ni->ni_refs[i],
-				      ni->ni_peertxcredits,
-				      ni->ni_peerrtrcredits,
-				      tq->tq_credits_max,
-				      tq->tq_credits, tq->tq_credits_min);
-				if (i != 0)
-					lnet_net_unlock(i);
-			}
-			LASSERT(tmpstr + tmpsiz - s > 0);
-		}
-
-		lnet_net_unlock(0);
-	}
-
-	len = s - tmpstr;     /* how many bytes was written */
-
-	if (len > *lenp) {    /* linux-supplied buffer is too small */
-		rc = -EINVAL;
-	} else if (len > 0) { /* wrote something */
-		if (copy_to_user(buffer, tmpstr, len))
-			rc = -EFAULT;
-		else
-			*ppos += 1;
-	}
-
-	LIBCFS_FREE(tmpstr, tmpsiz);
-
-	if (rc == 0)
-		*lenp = len;
-
-	return rc;
-}
-
-struct lnet_portal_rotors {
-	int pr_value;
-	const char *pr_name;
-	const char *pr_desc;
-};
-
-static struct lnet_portal_rotors	portal_rotors[] = {
-	{
-		.pr_value = LNET_PTL_ROTOR_OFF,
-		.pr_name  = "OFF",
-		.pr_desc  = "Turn off message rotor for wildcard portals"
-	},
-	{
-		.pr_value = LNET_PTL_ROTOR_ON,
-		.pr_name  = "ON",
-		.pr_desc  = "round-robin dispatch all PUT messages for wildcard portals"
-	},
-	{
-		.pr_value = LNET_PTL_ROTOR_RR_RT,
-		.pr_name  = "RR_RT",
-		.pr_desc  = "round-robin dispatch routed PUT message for wildcard portals"
-	},
-	{
-		.pr_value = LNET_PTL_ROTOR_HASH_RT,
-		.pr_name  = "HASH_RT",
-		.pr_desc  = "dispatch routed PUT message by hashing source NID for wildcard portals"
-	},
-	{
-		.pr_value = -1,
-		.pr_name  = NULL,
-		.pr_desc  = NULL
-	},
-};
-
-extern int portal_rotor;
-
-static int __proc_lnet_portal_rotor(void *data, int write,
-				    loff_t pos, void __user *buffer, int nob)
-{
-	const int buf_len = 128;
-	char *buf;
-	char *tmp;
-	int rc;
-	int i;
-
-	LIBCFS_ALLOC(buf, buf_len);
-	if (buf == NULL)
-		return -ENOMEM;
-
-	if (!write) {
-		lnet_res_lock(0);
-
-		for (i = 0; portal_rotors[i].pr_value >= 0; i++) {
-			if (portal_rotors[i].pr_value == portal_rotor)
-				break;
-		}
-
-		LASSERT(portal_rotors[i].pr_value == portal_rotor);
-		lnet_res_unlock(0);
-
-		rc = snprintf(buf, buf_len,
-			      "{\n\tportals: all\n"
-			      "\trotor: %s\n\tdescription: %s\n}",
-			      portal_rotors[i].pr_name,
-			      portal_rotors[i].pr_desc);
-
-		if (pos >= min_t(int, rc, buf_len)) {
-			rc = 0;
-		} else {
-			rc = cfs_trace_copyout_string(buffer, nob,
-					buf + pos, "\n");
-		}
-		goto out;
-	}
-
-	rc = cfs_trace_copyin_string(buf, buf_len, buffer, nob);
-	if (rc < 0)
-		goto out;
-
-	tmp = cfs_trimwhite(buf);
-
-	rc = -EINVAL;
-	lnet_res_lock(0);
-	for (i = 0; portal_rotors[i].pr_name != NULL; i++) {
-		if (strncasecmp(portal_rotors[i].pr_name, tmp,
-				strlen(portal_rotors[i].pr_name)) == 0) {
-			portal_rotor = portal_rotors[i].pr_value;
-			rc = 0;
-			break;
-		}
-	}
-	lnet_res_unlock(0);
-out:
-	LIBCFS_FREE(buf, buf_len);
-	return rc;
-}
-
-static int proc_lnet_portal_rotor(struct ctl_table *table, int write,
-				  void __user *buffer, size_t *lenp,
-				  loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_lnet_portal_rotor);
-}
-
-static struct ctl_table lnet_table[] = {
-	/*
-	 * NB No .strategy entries have been provided since sysctl(8) prefers
-	 * to go via /proc for portability.
-	 */
-	{
-		.procname     = "stats",
-		.mode         = 0644,
-		.proc_handler = &proc_lnet_stats,
-	},
-	{
-		.procname     = "routes",
-		.mode         = 0444,
-		.proc_handler = &proc_lnet_routes,
-	},
-	{
-		.procname     = "routers",
-		.mode         = 0444,
-		.proc_handler = &proc_lnet_routers,
-	},
-	{
-		.procname     = "peers",
-		.mode         = 0444,
-		.proc_handler = &proc_lnet_peers,
-	},
-	{
-		.procname     = "buffers",
-		.mode         = 0444,
-		.proc_handler = &proc_lnet_buffers,
-	},
-	{
-		.procname     = "nis",
-		.mode         = 0444,
-		.proc_handler = &proc_lnet_nis,
-	},
-	{
-		.procname     = "portal_rotor",
-		.mode         = 0644,
-		.proc_handler = &proc_lnet_portal_rotor,
-	},
-	{
-	}
-};
-
-static struct ctl_table top_table[] = {
-	{
-		.procname = "lnet",
-		.mode     = 0555,
-		.data     = NULL,
-		.maxlen   = 0,
-		.child    = lnet_table,
-	},
-	{
-	}
-};
-
-void
-lnet_proc_init(void)
-{
-	if (lnet_table_header == NULL)
-		lnet_table_header = register_sysctl_table(top_table);
-}
-
-void
-lnet_proc_fini(void)
-{
-	if (lnet_table_header != NULL)
-		unregister_sysctl_table(lnet_table_header);
-
-	lnet_table_header = NULL;
-}
-
-#else
-
-void
-lnet_proc_init(void)
-{
-}
-
-void
-lnet_proc_fini(void)
-{
-}
-
-#endif
diff --git a/drivers/staging/lustre/lnet/selftest/Makefile b/drivers/staging/lustre/lnet/selftest/Makefile
deleted file mode 100644
index c0de6e2d96d0..000000000000
--- a/drivers/staging/lustre/lnet/selftest/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-obj-$(CONFIG_LNET_SELFTEST) := lnet_selftest.o
-
-lnet_selftest-y := console.o conrpc.o conctl.o framework.o timer.o rpc.o \
-		   module.o ping_test.o brw_test.o
diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
deleted file mode 100644
index de11f1bc8be7..000000000000
--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
+++ /dev/null
@@ -1,508 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/brw_test.c
- *
- * Author: Isaac Huang <isaac@clusterfs.com>
- */
-
-#include "selftest.h"
-
-static int brw_srv_workitems = SFW_TEST_WI_MAX;
-module_param(brw_srv_workitems, int, 0644);
-MODULE_PARM_DESC(brw_srv_workitems, "# BRW server workitems");
-
-static int brw_inject_errors;
-module_param(brw_inject_errors, int, 0644);
-MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by default");
-
-static void
-brw_client_fini(sfw_test_instance_t *tsi)
-{
-	srpc_bulk_t     *bulk;
-	sfw_test_unit_t *tsu;
-
-	LASSERT(tsi->tsi_is_client);
-
-	list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
-		bulk = tsu->tsu_private;
-		if (bulk == NULL)
-			continue;
-
-		srpc_free_bulk(bulk);
-		tsu->tsu_private = NULL;
-	}
-}
-
-static int
-brw_client_init(sfw_test_instance_t *tsi)
-{
-	sfw_session_t	 *sn = tsi->tsi_batch->bat_session;
-	int		  flags;
-	int		  npg;
-	int		  len;
-	int		  opc;
-	srpc_bulk_t	 *bulk;
-	sfw_test_unit_t	 *tsu;
-
-	LASSERT(sn != NULL);
-	LASSERT(tsi->tsi_is_client);
-
-	if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
-		test_bulk_req_t  *breq = &tsi->tsi_u.bulk_v0;
-
-		opc   = breq->blk_opc;
-		flags = breq->blk_flags;
-		npg   = breq->blk_npg;
-		/* NB: this is not going to work for variable page size,
-		 * but we have to keep it for compatibility */
-		len   = npg * PAGE_CACHE_SIZE;
-
-	} else {
-		test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
-
-		/* I should never get this step if it's unknown feature
-		 * because make_session will reject unknown feature */
-		LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
-
-		opc   = breq->blk_opc;
-		flags = breq->blk_flags;
-		len   = breq->blk_len;
-		npg   = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-	}
-
-	if (npg > LNET_MAX_IOV || npg <= 0)
-		return -EINVAL;
-
-	if (opc != LST_BRW_READ && opc != LST_BRW_WRITE)
-		return -EINVAL;
-
-	if (flags != LST_BRW_CHECK_NONE &&
-	    flags != LST_BRW_CHECK_FULL && flags != LST_BRW_CHECK_SIMPLE)
-		return -EINVAL;
-
-	list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
-		bulk = srpc_alloc_bulk(lnet_cpt_of_nid(tsu->tsu_dest.nid),
-				       npg, len, opc == LST_BRW_READ);
-		if (bulk == NULL) {
-			brw_client_fini(tsi);
-			return -ENOMEM;
-		}
-
-		tsu->tsu_private = bulk;
-	}
-
-	return 0;
-}
-
-#define BRW_POISON      0xbeefbeefbeefbeefULL
-#define BRW_MAGIC       0xeeb0eeb1eeb2eeb3ULL
-#define BRW_MSIZE       sizeof(__u64)
-
-static int
-brw_inject_one_error(void)
-{
-	struct timeval tv;
-
-	if (brw_inject_errors <= 0)
-		return 0;
-
-	do_gettimeofday(&tv);
-
-	if ((tv.tv_usec & 1) == 0)
-		return 0;
-
-	return brw_inject_errors--;
-}
-
-static void
-brw_fill_page(struct page *pg, int pattern, __u64 magic)
-{
-	char *addr = page_address(pg);
-	int   i;
-
-	LASSERT(addr != NULL);
-
-	if (pattern == LST_BRW_CHECK_NONE)
-		return;
-
-	if (magic == BRW_MAGIC)
-		magic += brw_inject_one_error();
-
-	if (pattern == LST_BRW_CHECK_SIMPLE) {
-		memcpy(addr, &magic, BRW_MSIZE);
-		addr += PAGE_CACHE_SIZE - BRW_MSIZE;
-		memcpy(addr, &magic, BRW_MSIZE);
-		return;
-	}
-
-	if (pattern == LST_BRW_CHECK_FULL) {
-		for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++)
-			memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
-		return;
-	}
-
-	LBUG();
-}
-
-static int
-brw_check_page(struct page *pg, int pattern, __u64 magic)
-{
-	char  *addr = page_address(pg);
-	__u64  data = 0; /* make compiler happy */
-	int    i;
-
-	LASSERT(addr != NULL);
-
-	if (pattern == LST_BRW_CHECK_NONE)
-		return 0;
-
-	if (pattern == LST_BRW_CHECK_SIMPLE) {
-		data = *((__u64 *) addr);
-		if (data != magic)
-			goto bad_data;
-
-		addr += PAGE_CACHE_SIZE - BRW_MSIZE;
-		data = *((__u64 *) addr);
-		if (data != magic)
-			goto bad_data;
-
-		return 0;
-	}
-
-	if (pattern == LST_BRW_CHECK_FULL) {
-		for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++) {
-			data = *(((__u64 *) addr) + i);
-			if (data != magic)
-				goto bad_data;
-		}
-
-		return 0;
-	}
-
-	LBUG();
-
-bad_data:
-	CERROR("Bad data in page %p: %#llx, %#llx expected\n",
-		pg, data, magic);
-	return 1;
-}
-
-static void
-brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
-{
-	int i;
-	struct page *pg;
-
-	for (i = 0; i < bk->bk_niov; i++) {
-		pg = bk->bk_iovs[i].kiov_page;
-		brw_fill_page(pg, pattern, magic);
-	}
-}
-
-static int
-brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
-{
-	int i;
-	struct page *pg;
-
-	for (i = 0; i < bk->bk_niov; i++) {
-		pg = bk->bk_iovs[i].kiov_page;
-		if (brw_check_page(pg, pattern, magic) != 0) {
-			CERROR("Bulk page %p (%d/%d) is corrupted!\n",
-				pg, i, bk->bk_niov);
-			return 1;
-		}
-	}
-
-	return 0;
-}
-
-static int
-brw_client_prep_rpc(sfw_test_unit_t *tsu,
-		     lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
-{
-	srpc_bulk_t *bulk = tsu->tsu_private;
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-	sfw_session_t *sn = tsi->tsi_batch->bat_session;
-	srpc_client_rpc_t *rpc;
-	srpc_brw_reqst_t *req;
-	int flags;
-	int npg;
-	int len;
-	int opc;
-	int rc;
-
-	LASSERT(sn != NULL);
-	LASSERT(bulk != NULL);
-
-	if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
-		test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0;
-
-		opc   = breq->blk_opc;
-		flags = breq->blk_flags;
-		npg   = breq->blk_npg;
-		len   = npg * PAGE_CACHE_SIZE;
-
-	} else {
-		test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1;
-
-		/* I should never get this step if it's unknown feature
-		 * because make_session will reject unknown feature */
-		LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
-
-		opc   = breq->blk_opc;
-		flags = breq->blk_flags;
-		len   = breq->blk_len;
-		npg   = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-	}
-
-	rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
-	if (rc != 0)
-		return rc;
-
-	memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg]));
-	if (opc == LST_BRW_WRITE)
-		brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC);
-	else
-		brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_POISON);
-
-	req = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
-	req->brw_flags = flags;
-	req->brw_rw    = opc;
-	req->brw_len   = len;
-
-	*rpcpp = rpc;
-	return 0;
-}
-
-static void
-brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
-{
-	__u64 magic = BRW_MAGIC;
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-	sfw_session_t *sn = tsi->tsi_batch->bat_session;
-	srpc_msg_t *msg = &rpc->crpc_replymsg;
-	srpc_brw_reply_t *reply = &msg->msg_body.brw_reply;
-	srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
-
-	LASSERT(sn != NULL);
-
-	if (rpc->crpc_status != 0) {
-		CERROR("BRW RPC to %s failed with %d\n",
-			libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
-		if (!tsi->tsi_stopping) /* rpc could have been aborted */
-			atomic_inc(&sn->sn_brw_errors);
-		goto out;
-	}
-
-	if (msg->msg_magic != SRPC_MSG_MAGIC) {
-		__swab64s(&magic);
-		__swab32s(&reply->brw_status);
-	}
-
-	CDEBUG(reply->brw_status ? D_WARNING : D_NET,
-		"BRW RPC to %s finished with brw_status: %d\n",
-		libcfs_id2str(rpc->crpc_dest), reply->brw_status);
-
-	if (reply->brw_status != 0) {
-		atomic_inc(&sn->sn_brw_errors);
-		rpc->crpc_status = -(int)reply->brw_status;
-		goto out;
-	}
-
-	if (reqst->brw_rw == LST_BRW_WRITE)
-		goto out;
-
-	if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
-		CERROR("Bulk data from %s is corrupted!\n",
-			libcfs_id2str(rpc->crpc_dest));
-		atomic_inc(&sn->sn_brw_errors);
-		rpc->crpc_status = -EBADMSG;
-	}
-
-out:
-	return;
-}
-
-static void
-brw_server_rpc_done(srpc_server_rpc_t *rpc)
-{
-	srpc_bulk_t *blk = rpc->srpc_bulk;
-
-	if (blk == NULL)
-		return;
-
-	if (rpc->srpc_status != 0)
-		CERROR("Bulk transfer %s %s has failed: %d\n",
-			blk->bk_sink ? "from" : "to",
-			libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
-	else
-		CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
-			blk->bk_niov, blk->bk_sink ? "from" : "to",
-			libcfs_id2str(rpc->srpc_peer));
-
-	sfw_free_pages(rpc);
-}
-
-static int
-brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
-{
-	__u64 magic = BRW_MAGIC;
-	srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
-	srpc_brw_reqst_t *reqst;
-	srpc_msg_t *reqstmsg;
-
-	LASSERT(rpc->srpc_bulk != NULL);
-	LASSERT(rpc->srpc_reqstbuf != NULL);
-
-	reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
-	reqst = &reqstmsg->msg_body.brw_reqst;
-
-	if (status != 0) {
-		CERROR("BRW bulk %s failed for RPC from %s: %d\n",
-			reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
-			libcfs_id2str(rpc->srpc_peer), status);
-		return -EIO;
-	}
-
-	if (reqst->brw_rw == LST_BRW_READ)
-		return 0;
-
-	if (reqstmsg->msg_magic != SRPC_MSG_MAGIC)
-		__swab64s(&magic);
-
-	if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
-		CERROR("Bulk data from %s is corrupted!\n",
-			libcfs_id2str(rpc->srpc_peer));
-		reply->brw_status = EBADMSG;
-	}
-
-	return 0;
-}
-
-static int
-brw_server_handle(struct srpc_server_rpc *rpc)
-{
-	struct srpc_service *sv = rpc->srpc_scd->scd_svc;
-	srpc_msg_t *replymsg = &rpc->srpc_replymsg;
-	srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
-	srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply;
-	srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst;
-	int npg;
-	int rc;
-
-	LASSERT(sv->sv_id == SRPC_SERVICE_BRW);
-
-	if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
-		LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
-
-		__swab32s(&reqst->brw_rw);
-		__swab32s(&reqst->brw_len);
-		__swab32s(&reqst->brw_flags);
-		__swab64s(&reqst->brw_rpyid);
-		__swab64s(&reqst->brw_bulkid);
-	}
-	LASSERT(reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
-
-	reply->brw_status = 0;
-	rpc->srpc_done = brw_server_rpc_done;
-
-	if ((reqst->brw_rw != LST_BRW_READ && reqst->brw_rw != LST_BRW_WRITE) ||
-	    (reqst->brw_flags != LST_BRW_CHECK_NONE &&
-	     reqst->brw_flags != LST_BRW_CHECK_FULL &&
-	     reqst->brw_flags != LST_BRW_CHECK_SIMPLE)) {
-		reply->brw_status = EINVAL;
-		return 0;
-	}
-
-	if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
-		replymsg->msg_ses_feats = LST_FEATS_MASK;
-		reply->brw_status = EPROTO;
-		return 0;
-	}
-
-	if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
-		/* compat with old version */
-		if ((reqst->brw_len & ~CFS_PAGE_MASK) != 0) {
-			reply->brw_status = EINVAL;
-			return 0;
-		}
-		npg = reqst->brw_len >> PAGE_CACHE_SHIFT;
-
-	} else {
-		npg = (reqst->brw_len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-	}
-
-	replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
-
-	if (reqst->brw_len == 0 || npg > LNET_MAX_IOV) {
-		reply->brw_status = EINVAL;
-		return 0;
-	}
-
-	rc = sfw_alloc_pages(rpc, rpc->srpc_scd->scd_cpt, npg,
-			     reqst->brw_len,
-			     reqst->brw_rw == LST_BRW_WRITE);
-	if (rc != 0)
-		return rc;
-
-	if (reqst->brw_rw == LST_BRW_READ)
-		brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_MAGIC);
-	else
-		brw_fill_bulk(rpc->srpc_bulk, reqst->brw_flags, BRW_POISON);
-
-	return 0;
-}
-
-sfw_test_client_ops_t brw_test_client;
-void brw_init_test_client(void)
-{
-	brw_test_client.tso_init     = brw_client_init;
-	brw_test_client.tso_fini     = brw_client_fini;
-	brw_test_client.tso_prep_rpc = brw_client_prep_rpc;
-	brw_test_client.tso_done_rpc = brw_client_done_rpc;
-};
-
-srpc_service_t brw_test_service;
-void brw_init_test_service(void)
-{
-
-	brw_test_service.sv_id         = SRPC_SERVICE_BRW;
-	brw_test_service.sv_name       = "brw_test";
-	brw_test_service.sv_handler    = brw_server_handle;
-	brw_test_service.sv_bulk_ready = brw_bulk_ready;
-	brw_test_service.sv_wi_total   = brw_srv_workitems;
-}
diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c
deleted file mode 100644
index 1a7870e91f23..000000000000
--- a/drivers/staging/lustre/lnet/selftest/conctl.c
+++ /dev/null
@@ -1,929 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/conctl.c
- *
- * IOC handle in kernel
- *
- * Author: Liang Zhen <liangzhen@clusterfs.com>
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lib-lnet.h"
-#include "../../include/linux/lnet/lnetst.h"
-#include "console.h"
-
-static int
-lst_session_new_ioctl(lstio_session_new_args_t *args)
-{
-	char *name;
-	int rc;
-
-	if (args->lstio_ses_idp   == NULL || /* address for output sid */
-	    args->lstio_ses_key   == 0 ||    /* no key is specified */
-	    args->lstio_ses_namep == NULL || /* session name */
-	    args->lstio_ses_nmlen <= 0 ||
-	    args->lstio_ses_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_ses_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_ses_namep,
-			       args->lstio_ses_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_ses_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_ses_nmlen] = 0;
-
-	rc = lstcon_session_new(name,
-				args->lstio_ses_key,
-				args->lstio_ses_feats,
-				args->lstio_ses_force,
-				args->lstio_ses_timeout,
-				args->lstio_ses_idp);
-
-	LIBCFS_FREE(name, args->lstio_ses_nmlen + 1);
-	return rc;
-}
-
-static int
-lst_session_end_ioctl(lstio_session_end_args_t *args)
-{
-	if (args->lstio_ses_key != console_session.ses_key)
-		return -EACCES;
-
-	return lstcon_session_end();
-}
-
-static int
-lst_session_info_ioctl(lstio_session_info_args_t *args)
-{
-	/* no checking of key */
-
-	if (args->lstio_ses_idp    == NULL || /* address for output sid */
-	    args->lstio_ses_keyp   == NULL || /* address for output key */
-	    args->lstio_ses_featp  == NULL || /* address for output features */
-	    args->lstio_ses_ndinfo == NULL || /* address for output ndinfo */
-	    args->lstio_ses_namep  == NULL || /* address for output name */
-	    args->lstio_ses_nmlen  <= 0 ||
-	    args->lstio_ses_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	return lstcon_session_info(args->lstio_ses_idp,
-				   args->lstio_ses_keyp,
-				   args->lstio_ses_featp,
-				   args->lstio_ses_ndinfo,
-				   args->lstio_ses_namep,
-				   args->lstio_ses_nmlen);
-}
-
-static int
-lst_debug_ioctl(lstio_debug_args_t *args)
-{
-	char   *name   = NULL;
-	int     client = 1;
-	int     rc;
-
-	if (args->lstio_dbg_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_dbg_resultp == NULL)
-		return -EINVAL;
-
-	if (args->lstio_dbg_namep != NULL && /* name of batch/group */
-	    (args->lstio_dbg_nmlen <= 0 ||
-	     args->lstio_dbg_nmlen > LST_NAME_SIZE))
-		return -EINVAL;
-
-	if (args->lstio_dbg_namep != NULL) {
-		LIBCFS_ALLOC(name, args->lstio_dbg_nmlen + 1);
-		if (name == NULL)
-			return -ENOMEM;
-
-		if (copy_from_user(name, args->lstio_dbg_namep,
-				       args->lstio_dbg_nmlen)) {
-			LIBCFS_FREE(name, args->lstio_dbg_nmlen + 1);
-
-			return -EFAULT;
-		}
-
-		name[args->lstio_dbg_nmlen] = 0;
-	}
-
-	rc = -EINVAL;
-
-	switch (args->lstio_dbg_type) {
-	case LST_OPC_SESSION:
-		rc = lstcon_session_debug(args->lstio_dbg_timeout,
-					  args->lstio_dbg_resultp);
-		break;
-
-	case LST_OPC_BATCHSRV:
-		client = 0;
-	case LST_OPC_BATCHCLI:
-		if (name == NULL)
-			goto out;
-
-		rc = lstcon_batch_debug(args->lstio_dbg_timeout,
-					name, client, args->lstio_dbg_resultp);
-		break;
-
-	case LST_OPC_GROUP:
-		if (name == NULL)
-			goto out;
-
-		rc = lstcon_group_debug(args->lstio_dbg_timeout,
-					name, args->lstio_dbg_resultp);
-		break;
-
-	case LST_OPC_NODES:
-		if (args->lstio_dbg_count <= 0 ||
-		    args->lstio_dbg_idsp == NULL)
-			goto out;
-
-		rc = lstcon_nodes_debug(args->lstio_dbg_timeout,
-					args->lstio_dbg_count,
-					args->lstio_dbg_idsp,
-					args->lstio_dbg_resultp);
-		break;
-
-	default:
-		break;
-	}
-
-out:
-	if (name != NULL)
-		LIBCFS_FREE(name, args->lstio_dbg_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_group_add_ioctl(lstio_group_add_args_t *args)
-{
-	char *name;
-	int rc;
-
-	if (args->lstio_grp_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_grp_namep == NULL ||
-	    args->lstio_grp_nmlen <= 0 ||
-	    args->lstio_grp_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_grp_namep,
-			       args->lstio_grp_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_grp_nmlen);
-		return -EFAULT;
-	}
-
-	name[args->lstio_grp_nmlen] = 0;
-
-	rc = lstcon_group_add(name);
-
-	LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_group_del_ioctl(lstio_group_del_args_t *args)
-{
-	int     rc;
-	char   *name;
-
-	if (args->lstio_grp_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_grp_namep == NULL ||
-	    args->lstio_grp_nmlen <= 0 ||
-	    args->lstio_grp_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_grp_namep,
-			       args->lstio_grp_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_grp_nmlen] = 0;
-
-	rc = lstcon_group_del(name);
-
-	LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_group_update_ioctl(lstio_group_update_args_t *args)
-{
-	int     rc;
-	char   *name;
-
-	if (args->lstio_grp_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_grp_resultp == NULL ||
-	    args->lstio_grp_namep == NULL ||
-	    args->lstio_grp_nmlen <= 0 ||
-	    args->lstio_grp_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			   args->lstio_grp_namep,
-			   args->lstio_grp_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_grp_nmlen] = 0;
-
-	switch (args->lstio_grp_opc) {
-	case LST_GROUP_CLEAN:
-		rc = lstcon_group_clean(name, args->lstio_grp_args);
-		break;
-
-	case LST_GROUP_REFRESH:
-		rc = lstcon_group_refresh(name, args->lstio_grp_resultp);
-		break;
-
-	case LST_GROUP_RMND:
-		if (args->lstio_grp_count  <= 0 ||
-		    args->lstio_grp_idsp == NULL) {
-			rc = -EINVAL;
-			break;
-		}
-		rc = lstcon_nodes_remove(name, args->lstio_grp_count,
-					 args->lstio_grp_idsp,
-					 args->lstio_grp_resultp);
-		break;
-
-	default:
-		rc = -EINVAL;
-		break;
-	}
-
-	LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_nodes_add_ioctl(lstio_group_nodes_args_t *args)
-{
-	unsigned feats;
-	int rc;
-	char *name;
-
-	if (args->lstio_grp_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_grp_idsp == NULL || /* array of ids */
-	    args->lstio_grp_count <= 0 ||
-	    args->lstio_grp_resultp == NULL ||
-	    args->lstio_grp_featp == NULL ||
-	    args->lstio_grp_namep == NULL ||
-	    args->lstio_grp_nmlen <= 0 ||
-	    args->lstio_grp_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name, args->lstio_grp_namep,
-			       args->lstio_grp_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-
-		return -EFAULT;
-	}
-
-	name[args->lstio_grp_nmlen] = 0;
-
-	rc = lstcon_nodes_add(name, args->lstio_grp_count,
-			      args->lstio_grp_idsp, &feats,
-			      args->lstio_grp_resultp);
-
-	LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-	if (rc == 0 &&
-	    copy_to_user(args->lstio_grp_featp, &feats, sizeof(feats))) {
-		return -EINVAL;
-	}
-
-	return rc;
-}
-
-static int
-lst_group_list_ioctl(lstio_group_list_args_t *args)
-{
-	if (args->lstio_grp_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_grp_idx   < 0 ||
-	    args->lstio_grp_namep == NULL ||
-	    args->lstio_grp_nmlen <= 0 ||
-	    args->lstio_grp_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	return lstcon_group_list(args->lstio_grp_idx,
-			      args->lstio_grp_nmlen,
-			      args->lstio_grp_namep);
-}
-
-static int
-lst_group_info_ioctl(lstio_group_info_args_t *args)
-{
-	char *name;
-	int ndent;
-	int index;
-	int rc;
-
-	if (args->lstio_grp_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_grp_namep == NULL ||
-	    args->lstio_grp_nmlen <= 0 ||
-	    args->lstio_grp_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	if (args->lstio_grp_entp  == NULL && /* output: group entry */
-	    args->lstio_grp_dentsp == NULL)  /* output: node entry */
-		return -EINVAL;
-
-	if (args->lstio_grp_dentsp != NULL) { /* have node entry */
-		if (args->lstio_grp_idxp == NULL || /* node index */
-		    args->lstio_grp_ndentp == NULL) /* # of node entry */
-			return -EINVAL;
-
-		if (copy_from_user(&ndent, args->lstio_grp_ndentp,
-				       sizeof(ndent)) ||
-		    copy_from_user(&index, args->lstio_grp_idxp,
-				       sizeof(index)))
-			return -EFAULT;
-
-		if (ndent <= 0 || index < 0)
-			return -EINVAL;
-	}
-
-	LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_grp_namep,
-			       args->lstio_grp_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_grp_nmlen] = 0;
-
-	rc = lstcon_group_info(name, args->lstio_grp_entp,
-			       &index, &ndent, args->lstio_grp_dentsp);
-
-	LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
-
-	if (rc != 0)
-		return rc;
-
-	if (args->lstio_grp_dentsp != NULL &&
-	    (copy_to_user(args->lstio_grp_idxp, &index, sizeof(index)) ||
-	     copy_to_user(args->lstio_grp_ndentp, &ndent, sizeof(ndent))))
-		rc = -EFAULT;
-
-	return 0;
-}
-
-static int
-lst_batch_add_ioctl(lstio_batch_add_args_t *args)
-{
-	int rc;
-	char *name;
-
-	if (args->lstio_bat_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_bat_namep == NULL ||
-	    args->lstio_bat_nmlen <= 0 ||
-	    args->lstio_bat_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_bat_namep,
-			       args->lstio_bat_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_bat_nmlen] = 0;
-
-	rc = lstcon_batch_add(name);
-
-	LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_batch_run_ioctl(lstio_batch_run_args_t *args)
-{
-	int rc;
-	char *name;
-
-	if (args->lstio_bat_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_bat_namep == NULL ||
-	    args->lstio_bat_nmlen <= 0 ||
-	    args->lstio_bat_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_bat_namep,
-			       args->lstio_bat_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_bat_nmlen] = 0;
-
-	rc = lstcon_batch_run(name, args->lstio_bat_timeout,
-			      args->lstio_bat_resultp);
-
-	LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_batch_stop_ioctl(lstio_batch_stop_args_t *args)
-{
-	int rc;
-	char *name;
-
-	if (args->lstio_bat_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_bat_resultp == NULL ||
-	    args->lstio_bat_namep == NULL ||
-	    args->lstio_bat_nmlen <= 0 ||
-	    args->lstio_bat_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_bat_namep,
-			       args->lstio_bat_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_bat_nmlen] = 0;
-
-	rc = lstcon_batch_stop(name, args->lstio_bat_force,
-			       args->lstio_bat_resultp);
-
-	LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_batch_query_ioctl(lstio_batch_query_args_t *args)
-{
-	char   *name;
-	int     rc;
-
-	if (args->lstio_bat_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_bat_resultp == NULL ||
-	    args->lstio_bat_namep == NULL ||
-	    args->lstio_bat_nmlen <= 0 ||
-	    args->lstio_bat_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	if (args->lstio_bat_testidx < 0)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_bat_namep,
-			       args->lstio_bat_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_bat_nmlen] = 0;
-
-	rc = lstcon_test_batch_query(name,
-				     args->lstio_bat_testidx,
-				     args->lstio_bat_client,
-				     args->lstio_bat_timeout,
-				     args->lstio_bat_resultp);
-
-	LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-
-	return rc;
-}
-
-static int
-lst_batch_list_ioctl(lstio_batch_list_args_t *args)
-{
-	if (args->lstio_bat_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_bat_idx   < 0 ||
-	    args->lstio_bat_namep == NULL ||
-	    args->lstio_bat_nmlen <= 0 ||
-	    args->lstio_bat_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	return lstcon_batch_list(args->lstio_bat_idx,
-			      args->lstio_bat_nmlen,
-			      args->lstio_bat_namep);
-}
-
-static int
-lst_batch_info_ioctl(lstio_batch_info_args_t *args)
-{
-	char *name;
-	int rc;
-	int index;
-	int ndent;
-
-	if (args->lstio_bat_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_bat_namep == NULL || /* batch name */
-	    args->lstio_bat_nmlen <= 0 ||
-	    args->lstio_bat_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	if (args->lstio_bat_entp == NULL && /* output: batch entry */
-	    args->lstio_bat_dentsp == NULL) /* output: node entry */
-		return -EINVAL;
-
-	if (args->lstio_bat_dentsp != NULL) { /* have node entry */
-		if (args->lstio_bat_idxp == NULL || /* node index */
-		    args->lstio_bat_ndentp == NULL) /* # of node entry */
-			return -EINVAL;
-
-		if (copy_from_user(&index, args->lstio_bat_idxp,
-				       sizeof(index)) ||
-		    copy_from_user(&ndent, args->lstio_bat_ndentp,
-				       sizeof(ndent)))
-			return -EFAULT;
-
-		if (ndent <= 0 || index < 0)
-			return -EINVAL;
-	}
-
-	LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name,
-			       args->lstio_bat_namep, args->lstio_bat_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-		return -EFAULT;
-	}
-
-	name[args->lstio_bat_nmlen] = 0;
-
-	rc = lstcon_batch_info(name,
-			    args->lstio_bat_entp, args->lstio_bat_server,
-			    args->lstio_bat_testidx, &index, &ndent,
-			    args->lstio_bat_dentsp);
-
-	LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
-
-	if (rc != 0)
-		return rc;
-
-	if (args->lstio_bat_dentsp != NULL &&
-	    (copy_to_user(args->lstio_bat_idxp, &index, sizeof(index)) ||
-	     copy_to_user(args->lstio_bat_ndentp, &ndent, sizeof(ndent))))
-		rc = -EFAULT;
-
-	return rc;
-}
-
-static int
-lst_stat_query_ioctl(lstio_stat_args_t *args)
-{
-	int rc;
-	char *name;
-
-	/* TODO: not finished */
-	if (args->lstio_sta_key != console_session.ses_key)
-		return -EACCES;
-
-	if (args->lstio_sta_resultp == NULL ||
-	    (args->lstio_sta_namep  == NULL &&
-	     args->lstio_sta_idsp   == NULL) ||
-	    args->lstio_sta_nmlen <= 0 ||
-	    args->lstio_sta_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	if (args->lstio_sta_idsp != NULL &&
-	    args->lstio_sta_count <= 0)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(name, args->lstio_sta_nmlen + 1);
-	if (name == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(name, args->lstio_sta_namep,
-			       args->lstio_sta_nmlen)) {
-		LIBCFS_FREE(name, args->lstio_sta_nmlen + 1);
-		return -EFAULT;
-	}
-
-	if (args->lstio_sta_idsp == NULL) {
-		rc = lstcon_group_stat(name, args->lstio_sta_timeout,
-				       args->lstio_sta_resultp);
-	} else {
-		rc = lstcon_nodes_stat(args->lstio_sta_count,
-				       args->lstio_sta_idsp,
-				       args->lstio_sta_timeout,
-				       args->lstio_sta_resultp);
-	}
-
-	LIBCFS_FREE(name, args->lstio_sta_nmlen + 1);
-
-	return rc;
-}
-
-static int lst_test_add_ioctl(lstio_test_args_t *args)
-{
-	char		*batch_name;
-	char		*src_name = NULL;
-	char		*dst_name = NULL;
-	void		*param = NULL;
-	int		ret = 0;
-	int		rc = -ENOMEM;
-
-	if (args->lstio_tes_resultp == NULL ||
-	    args->lstio_tes_retp == NULL ||
-	    args->lstio_tes_bat_name == NULL || /* no specified batch */
-	    args->lstio_tes_bat_nmlen <= 0 ||
-	    args->lstio_tes_bat_nmlen > LST_NAME_SIZE ||
-	    args->lstio_tes_sgrp_name == NULL || /* no source group */
-	    args->lstio_tes_sgrp_nmlen <= 0 ||
-	    args->lstio_tes_sgrp_nmlen > LST_NAME_SIZE ||
-	    args->lstio_tes_dgrp_name == NULL || /* no target group */
-	    args->lstio_tes_dgrp_nmlen <= 0 ||
-	    args->lstio_tes_dgrp_nmlen > LST_NAME_SIZE)
-		return -EINVAL;
-
-	if (args->lstio_tes_loop == 0 || /* negative is infinite */
-	    args->lstio_tes_concur <= 0 ||
-	    args->lstio_tes_dist <= 0 ||
-	    args->lstio_tes_span <= 0)
-		return -EINVAL;
-
-	/* have parameter, check if parameter length is valid */
-	if (args->lstio_tes_param != NULL &&
-	    (args->lstio_tes_param_len <= 0 ||
-	     args->lstio_tes_param_len > PAGE_CACHE_SIZE - sizeof(lstcon_test_t)))
-		return -EINVAL;
-
-	LIBCFS_ALLOC(batch_name, args->lstio_tes_bat_nmlen + 1);
-	if (batch_name == NULL)
-		return rc;
-
-	LIBCFS_ALLOC(src_name, args->lstio_tes_sgrp_nmlen + 1);
-	if (src_name == NULL)
-		goto out;
-
-	LIBCFS_ALLOC(dst_name, args->lstio_tes_dgrp_nmlen + 1);
-	 if (dst_name == NULL)
-		goto out;
-
-	if (args->lstio_tes_param != NULL) {
-		LIBCFS_ALLOC(param, args->lstio_tes_param_len);
-		if (param == NULL)
-			goto out;
-	}
-
-	rc = -EFAULT;
-	if (copy_from_user(batch_name, args->lstio_tes_bat_name,
-			   args->lstio_tes_bat_nmlen) ||
-	    copy_from_user(src_name, args->lstio_tes_sgrp_name,
-			   args->lstio_tes_sgrp_nmlen) ||
-	    copy_from_user(dst_name, args->lstio_tes_dgrp_name,
-			   args->lstio_tes_dgrp_nmlen) ||
-	    copy_from_user(param, args->lstio_tes_param,
-			      args->lstio_tes_param_len))
-		goto out;
-
-	rc = lstcon_test_add(batch_name,
-			    args->lstio_tes_type,
-			    args->lstio_tes_loop,
-			    args->lstio_tes_concur,
-			    args->lstio_tes_dist, args->lstio_tes_span,
-			    src_name, dst_name, param,
-			    args->lstio_tes_param_len,
-			    &ret, args->lstio_tes_resultp);
-
-	if (ret != 0)
-		rc = (copy_to_user(args->lstio_tes_retp, &ret,
-				       sizeof(ret))) ? -EFAULT : 0;
-out:
-	if (batch_name != NULL)
-		LIBCFS_FREE(batch_name, args->lstio_tes_bat_nmlen + 1);
-
-	if (src_name != NULL)
-		LIBCFS_FREE(src_name, args->lstio_tes_sgrp_nmlen + 1);
-
-	if (dst_name != NULL)
-		LIBCFS_FREE(dst_name, args->lstio_tes_dgrp_nmlen + 1);
-
-	if (param != NULL)
-		LIBCFS_FREE(param, args->lstio_tes_param_len);
-
-	return rc;
-}
-
-int
-lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data)
-{
-	char   *buf;
-	int     opc = data->ioc_u32[0];
-	int     rc;
-
-	if (cmd != IOC_LIBCFS_LNETST)
-		return -EINVAL;
-
-	if (data->ioc_plen1 > PAGE_CACHE_SIZE)
-		return -EINVAL;
-
-	LIBCFS_ALLOC(buf, data->ioc_plen1);
-	if (buf == NULL)
-		return -ENOMEM;
-
-	/* copy in parameter */
-	if (copy_from_user(buf, data->ioc_pbuf1, data->ioc_plen1)) {
-		LIBCFS_FREE(buf, data->ioc_plen1);
-		return -EFAULT;
-	}
-
-	mutex_lock(&console_session.ses_mutex);
-
-	console_session.ses_laststamp = get_seconds();
-
-	if (console_session.ses_shutdown) {
-		rc = -ESHUTDOWN;
-		goto out;
-	}
-
-	if (console_session.ses_expired)
-		lstcon_session_end();
-
-	if (opc != LSTIO_SESSION_NEW &&
-	    console_session.ses_state == LST_SESSION_NONE) {
-		CDEBUG(D_NET, "LST no active session\n");
-		rc = -ESRCH;
-		goto out;
-	}
-
-	memset(&console_session.ses_trans_stat, 0, sizeof(lstcon_trans_stat_t));
-
-	switch (opc) {
-	case LSTIO_SESSION_NEW:
-		rc = lst_session_new_ioctl((lstio_session_new_args_t *)buf);
-		break;
-	case LSTIO_SESSION_END:
-		rc = lst_session_end_ioctl((lstio_session_end_args_t *)buf);
-		break;
-	case LSTIO_SESSION_INFO:
-		rc = lst_session_info_ioctl((lstio_session_info_args_t *)buf);
-		break;
-	case LSTIO_DEBUG:
-		rc = lst_debug_ioctl((lstio_debug_args_t *)buf);
-		break;
-	case LSTIO_GROUP_ADD:
-		rc = lst_group_add_ioctl((lstio_group_add_args_t *)buf);
-		break;
-	case LSTIO_GROUP_DEL:
-		rc = lst_group_del_ioctl((lstio_group_del_args_t *)buf);
-		break;
-	case LSTIO_GROUP_UPDATE:
-		rc = lst_group_update_ioctl((lstio_group_update_args_t *)buf);
-		break;
-	case LSTIO_NODES_ADD:
-		rc = lst_nodes_add_ioctl((lstio_group_nodes_args_t *)buf);
-		break;
-	case LSTIO_GROUP_LIST:
-		rc = lst_group_list_ioctl((lstio_group_list_args_t *)buf);
-		break;
-	case LSTIO_GROUP_INFO:
-		rc = lst_group_info_ioctl((lstio_group_info_args_t *)buf);
-		break;
-	case LSTIO_BATCH_ADD:
-		rc = lst_batch_add_ioctl((lstio_batch_add_args_t *)buf);
-		break;
-	case LSTIO_BATCH_START:
-		rc = lst_batch_run_ioctl((lstio_batch_run_args_t *)buf);
-		break;
-	case LSTIO_BATCH_STOP:
-		rc = lst_batch_stop_ioctl((lstio_batch_stop_args_t *)buf);
-		break;
-	case LSTIO_BATCH_QUERY:
-		rc = lst_batch_query_ioctl((lstio_batch_query_args_t *)buf);
-		break;
-	case LSTIO_BATCH_LIST:
-		rc = lst_batch_list_ioctl((lstio_batch_list_args_t *)buf);
-		break;
-	case LSTIO_BATCH_INFO:
-		rc = lst_batch_info_ioctl((lstio_batch_info_args_t *)buf);
-		break;
-	case LSTIO_TEST_ADD:
-		rc = lst_test_add_ioctl((lstio_test_args_t *)buf);
-		break;
-	case LSTIO_STAT_QUERY:
-		rc = lst_stat_query_ioctl((lstio_stat_args_t *)buf);
-		break;
-	default:
-		rc = -EINVAL;
-	}
-
-	if (copy_to_user(data->ioc_pbuf2, &console_session.ses_trans_stat,
-			     sizeof(lstcon_trans_stat_t)))
-		rc = -EFAULT;
-out:
-	mutex_unlock(&console_session.ses_mutex);
-
-	LIBCFS_FREE(buf, data->ioc_plen1);
-
-	return rc;
-}
-
-EXPORT_SYMBOL(lstcon_ioctl_entry);
diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
deleted file mode 100644
index a1a4e08f7391..000000000000
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ /dev/null
@@ -1,1400 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/conctl.c
- *
- * Console framework rpcs
- *
- * Author: Liang Zhen <liang@whamcloud.com>
- */
-
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lib-lnet.h"
-#include "timer.h"
-#include "conrpc.h"
-#include "console.h"
-
-void lstcon_rpc_stat_reply(lstcon_rpc_trans_t *, srpc_msg_t *,
-			   lstcon_node_t *, lstcon_trans_stat_t *);
-
-static void
-lstcon_rpc_done(srpc_client_rpc_t *rpc)
-{
-	lstcon_rpc_t *crpc = (lstcon_rpc_t *)rpc->crpc_priv;
-
-	LASSERT(crpc != NULL && rpc == crpc->crp_rpc);
-	LASSERT(crpc->crp_posted && !crpc->crp_finished);
-
-	spin_lock(&rpc->crpc_lock);
-
-	if (crpc->crp_trans == NULL) {
-		/* Orphan RPC is not in any transaction,
-		 * I'm just a poor body and nobody loves me */
-		spin_unlock(&rpc->crpc_lock);
-
-		/* release it */
-		lstcon_rpc_put(crpc);
-		return;
-	}
-
-	/* not an orphan RPC */
-	crpc->crp_finished = 1;
-
-	if (crpc->crp_stamp == 0) {
-		/* not aborted */
-		LASSERT(crpc->crp_status == 0);
-
-		crpc->crp_stamp  = cfs_time_current();
-		crpc->crp_status = rpc->crpc_status;
-	}
-
-	/* wakeup (transaction)thread if I'm the last RPC in the transaction */
-	if (atomic_dec_and_test(&crpc->crp_trans->tas_remaining))
-		wake_up(&crpc->crp_trans->tas_waitq);
-
-	spin_unlock(&rpc->crpc_lock);
-}
-
-static int
-lstcon_rpc_init(lstcon_node_t *nd, int service, unsigned feats,
-		int bulk_npg, int bulk_len, int embedded, lstcon_rpc_t *crpc)
-{
-	crpc->crp_rpc = sfw_create_rpc(nd->nd_id, service,
-				       feats, bulk_npg, bulk_len,
-				       lstcon_rpc_done, (void *)crpc);
-	if (crpc->crp_rpc == NULL)
-		return -ENOMEM;
-
-	crpc->crp_trans    = NULL;
-	crpc->crp_node     = nd;
-	crpc->crp_posted   = 0;
-	crpc->crp_finished = 0;
-	crpc->crp_unpacked = 0;
-	crpc->crp_status   = 0;
-	crpc->crp_stamp    = 0;
-	crpc->crp_embedded = embedded;
-	INIT_LIST_HEAD(&crpc->crp_link);
-
-	atomic_inc(&console_session.ses_rpc_counter);
-
-	return 0;
-}
-
-static int
-lstcon_rpc_prep(lstcon_node_t *nd, int service, unsigned feats,
-		int bulk_npg, int bulk_len, lstcon_rpc_t **crpcpp)
-{
-	lstcon_rpc_t *crpc = NULL;
-	int rc;
-
-	spin_lock(&console_session.ses_rpc_lock);
-
-	if (!list_empty(&console_session.ses_rpc_freelist)) {
-		crpc = list_entry(console_session.ses_rpc_freelist.next,
-				      lstcon_rpc_t, crp_link);
-		list_del_init(&crpc->crp_link);
-	}
-
-	spin_unlock(&console_session.ses_rpc_lock);
-
-	if (crpc == NULL) {
-		LIBCFS_ALLOC(crpc, sizeof(*crpc));
-		if (crpc == NULL)
-			return -ENOMEM;
-	}
-
-	rc = lstcon_rpc_init(nd, service, feats, bulk_npg, bulk_len, 0, crpc);
-	if (rc == 0) {
-		*crpcpp = crpc;
-		return 0;
-	}
-
-	LIBCFS_FREE(crpc, sizeof(*crpc));
-
-	return rc;
-}
-
-void
-lstcon_rpc_put(lstcon_rpc_t *crpc)
-{
-	srpc_bulk_t *bulk = &crpc->crp_rpc->crpc_bulk;
-	int i;
-
-	LASSERT(list_empty(&crpc->crp_link));
-
-	for (i = 0; i < bulk->bk_niov; i++) {
-		if (bulk->bk_iovs[i].kiov_page == NULL)
-			continue;
-
-		__free_page(bulk->bk_iovs[i].kiov_page);
-	}
-
-	srpc_client_rpc_decref(crpc->crp_rpc);
-
-	if (crpc->crp_embedded) {
-		/* embedded RPC, don't recycle it */
-		memset(crpc, 0, sizeof(*crpc));
-		crpc->crp_embedded = 1;
-
-	} else {
-		spin_lock(&console_session.ses_rpc_lock);
-
-		list_add(&crpc->crp_link,
-			     &console_session.ses_rpc_freelist);
-
-		spin_unlock(&console_session.ses_rpc_lock);
-	}
-
-	/* RPC is not alive now */
-	atomic_dec(&console_session.ses_rpc_counter);
-}
-
-static void
-lstcon_rpc_post(lstcon_rpc_t *crpc)
-{
-	lstcon_rpc_trans_t *trans = crpc->crp_trans;
-
-	LASSERT(trans != NULL);
-
-	atomic_inc(&trans->tas_remaining);
-	crpc->crp_posted = 1;
-
-	sfw_post_rpc(crpc->crp_rpc);
-}
-
-static char *
-lstcon_rpc_trans_name(int transop)
-{
-	if (transop == LST_TRANS_SESNEW)
-		return "SESNEW";
-
-	if (transop == LST_TRANS_SESEND)
-		return "SESEND";
-
-	if (transop == LST_TRANS_SESQRY)
-		return "SESQRY";
-
-	if (transop == LST_TRANS_SESPING)
-		return "SESPING";
-
-	if (transop == LST_TRANS_TSBCLIADD)
-		return "TSBCLIADD";
-
-	if (transop == LST_TRANS_TSBSRVADD)
-		return "TSBSRVADD";
-
-	if (transop == LST_TRANS_TSBRUN)
-		return "TSBRUN";
-
-	if (transop == LST_TRANS_TSBSTOP)
-		return "TSBSTOP";
-
-	if (transop == LST_TRANS_TSBCLIQRY)
-		return "TSBCLIQRY";
-
-	if (transop == LST_TRANS_TSBSRVQRY)
-		return "TSBSRVQRY";
-
-	if (transop == LST_TRANS_STATQRY)
-		return "STATQRY";
-
-	return "Unknown";
-}
-
-int
-lstcon_rpc_trans_prep(struct list_head *translist,
-		      int transop, lstcon_rpc_trans_t **transpp)
-{
-	lstcon_rpc_trans_t *trans;
-
-	if (translist != NULL) {
-		list_for_each_entry(trans, translist, tas_link) {
-			/* Can't enqueue two private transaction on
-			 * the same object */
-			if ((trans->tas_opc & transop) == LST_TRANS_PRIVATE)
-				return -EPERM;
-		}
-	}
-
-	/* create a trans group */
-	LIBCFS_ALLOC(trans, sizeof(*trans));
-	if (trans == NULL)
-		return -ENOMEM;
-
-	trans->tas_opc = transop;
-
-	if (translist == NULL)
-		INIT_LIST_HEAD(&trans->tas_olink);
-	else
-		list_add_tail(&trans->tas_olink, translist);
-
-	list_add_tail(&trans->tas_link, &console_session.ses_trans_list);
-
-	INIT_LIST_HEAD(&trans->tas_rpcs_list);
-	atomic_set(&trans->tas_remaining, 0);
-	init_waitqueue_head(&trans->tas_waitq);
-
-	spin_lock(&console_session.ses_rpc_lock);
-	trans->tas_features = console_session.ses_features;
-	spin_unlock(&console_session.ses_rpc_lock);
-
-	*transpp = trans;
-	return 0;
-}
-
-void
-lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, lstcon_rpc_t *crpc)
-{
-	list_add_tail(&crpc->crp_link, &trans->tas_rpcs_list);
-	crpc->crp_trans = trans;
-}
-
-void
-lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error)
-{
-	srpc_client_rpc_t *rpc;
-	lstcon_rpc_t      *crpc;
-	lstcon_node_t     *nd;
-
-	list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
-		rpc = crpc->crp_rpc;
-
-		spin_lock(&rpc->crpc_lock);
-
-		if (!crpc->crp_posted || /* not posted */
-		    crpc->crp_stamp != 0) { /* rpc done or aborted already */
-			if (crpc->crp_stamp == 0) {
-				crpc->crp_stamp = cfs_time_current();
-				crpc->crp_status = -EINTR;
-			}
-			spin_unlock(&rpc->crpc_lock);
-			continue;
-		}
-
-		crpc->crp_stamp  = cfs_time_current();
-		crpc->crp_status = error;
-
-		spin_unlock(&rpc->crpc_lock);
-
-		sfw_abort_rpc(rpc);
-
-		if (error != ETIMEDOUT)
-			continue;
-
-		nd = crpc->crp_node;
-		if (cfs_time_after(nd->nd_stamp, crpc->crp_stamp))
-			continue;
-
-		nd->nd_stamp = crpc->crp_stamp;
-		nd->nd_state = LST_NODE_DOWN;
-	}
-}
-
-static int
-lstcon_rpc_trans_check(lstcon_rpc_trans_t *trans)
-{
-	if (console_session.ses_shutdown &&
-	    !list_empty(&trans->tas_olink)) /* Not an end session RPC */
-		return 1;
-
-	return (atomic_read(&trans->tas_remaining) == 0) ? 1 : 0;
-}
-
-int
-lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout)
-{
-	lstcon_rpc_t *crpc;
-	int rc;
-
-	if (list_empty(&trans->tas_rpcs_list))
-		return 0;
-
-	if (timeout < LST_TRANS_MIN_TIMEOUT)
-		timeout = LST_TRANS_MIN_TIMEOUT;
-
-	CDEBUG(D_NET, "Transaction %s started\n",
-	       lstcon_rpc_trans_name(trans->tas_opc));
-
-	/* post all requests */
-	list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
-		LASSERT(!crpc->crp_posted);
-
-		lstcon_rpc_post(crpc);
-	}
-
-	mutex_unlock(&console_session.ses_mutex);
-
-	rc = wait_event_interruptible_timeout(trans->tas_waitq,
-					      lstcon_rpc_trans_check(trans),
-					      cfs_time_seconds(timeout));
-	rc = (rc > 0) ? 0 : ((rc < 0) ? -EINTR : -ETIMEDOUT);
-
-	mutex_lock(&console_session.ses_mutex);
-
-	if (console_session.ses_shutdown)
-		rc = -ESHUTDOWN;
-
-	if (rc != 0 || atomic_read(&trans->tas_remaining) != 0) {
-		/* treat short timeout as canceled */
-		if (rc == -ETIMEDOUT && timeout < LST_TRANS_MIN_TIMEOUT * 2)
-			rc = -EINTR;
-
-		lstcon_rpc_trans_abort(trans, rc);
-	}
-
-	CDEBUG(D_NET, "Transaction %s stopped: %d\n",
-	       lstcon_rpc_trans_name(trans->tas_opc), rc);
-
-	lstcon_rpc_trans_stat(trans, lstcon_trans_stat());
-
-	return rc;
-}
-
-static int
-lstcon_rpc_get_reply(lstcon_rpc_t *crpc, srpc_msg_t **msgpp)
-{
-	lstcon_node_t *nd  = crpc->crp_node;
-	srpc_client_rpc_t *rpc = crpc->crp_rpc;
-	srpc_generic_reply_t *rep;
-
-	LASSERT(nd != NULL && rpc != NULL);
-	LASSERT(crpc->crp_stamp != 0);
-
-	if (crpc->crp_status != 0) {
-		*msgpp = NULL;
-		return crpc->crp_status;
-	}
-
-	*msgpp = &rpc->crpc_replymsg;
-	if (!crpc->crp_unpacked) {
-		sfw_unpack_message(*msgpp);
-		crpc->crp_unpacked = 1;
-	}
-
-	if (cfs_time_after(nd->nd_stamp, crpc->crp_stamp))
-		return 0;
-
-	nd->nd_stamp = crpc->crp_stamp;
-	rep = &(*msgpp)->msg_body.reply;
-
-	if (rep->sid.ses_nid == LNET_NID_ANY)
-		nd->nd_state = LST_NODE_UNKNOWN;
-	else if (lstcon_session_match(rep->sid))
-		nd->nd_state = LST_NODE_ACTIVE;
-	else
-		nd->nd_state = LST_NODE_BUSY;
-
-	return 0;
-}
-
-void
-lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat)
-{
-	lstcon_rpc_t  *crpc;
-	srpc_msg_t *rep;
-	int error;
-
-	LASSERT(stat != NULL);
-
-	memset(stat, 0, sizeof(*stat));
-
-	list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
-		lstcon_rpc_stat_total(stat, 1);
-
-		LASSERT(crpc->crp_stamp != 0);
-
-		error = lstcon_rpc_get_reply(crpc, &rep);
-		if (error != 0) {
-			lstcon_rpc_stat_failure(stat, 1);
-			if (stat->trs_rpc_errno == 0)
-				stat->trs_rpc_errno = -error;
-
-			continue;
-		}
-
-		lstcon_rpc_stat_success(stat, 1);
-
-		lstcon_rpc_stat_reply(trans, rep, crpc->crp_node, stat);
-	}
-
-	if (trans->tas_opc == LST_TRANS_SESNEW && stat->trs_fwk_errno == 0) {
-		stat->trs_fwk_errno =
-		      lstcon_session_feats_check(trans->tas_features);
-	}
-
-	CDEBUG(D_NET, "transaction %s : success %d, failure %d, total %d, RPC error(%d), Framework error(%d)\n",
-	       lstcon_rpc_trans_name(trans->tas_opc),
-	       lstcon_rpc_stat_success(stat, 0),
-	       lstcon_rpc_stat_failure(stat, 0),
-	       lstcon_rpc_stat_total(stat, 0),
-	       stat->trs_rpc_errno, stat->trs_fwk_errno);
-
-	return;
-}
-
-int
-lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans,
-			     struct list_head *head_up,
-			     lstcon_rpc_readent_func_t readent)
-{
-	struct list_head tmp;
-	struct list_head *next;
-	lstcon_rpc_ent_t *ent;
-	srpc_generic_reply_t *rep;
-	lstcon_rpc_t *crpc;
-	srpc_msg_t *msg;
-	lstcon_node_t *nd;
-	long dur;
-	struct timeval tv;
-	int error;
-
-	LASSERT(head_up != NULL);
-
-	next = head_up;
-
-	list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
-		if (copy_from_user(&tmp, next,
-				       sizeof(struct list_head)))
-			return -EFAULT;
-
-		if (tmp.next == head_up)
-			return 0;
-
-		next = tmp.next;
-
-		ent = list_entry(next, lstcon_rpc_ent_t, rpe_link);
-
-		LASSERT(crpc->crp_stamp != 0);
-
-		error = lstcon_rpc_get_reply(crpc, &msg);
-
-		nd = crpc->crp_node;
-
-		dur = (long)cfs_time_sub(crpc->crp_stamp,
-		      (unsigned long)console_session.ses_id.ses_stamp);
-		cfs_duration_usec(dur, &tv);
-
-		if (copy_to_user(&ent->rpe_peer,
-				     &nd->nd_id, sizeof(lnet_process_id_t)) ||
-		    copy_to_user(&ent->rpe_stamp, &tv, sizeof(tv)) ||
-		    copy_to_user(&ent->rpe_state,
-				     &nd->nd_state, sizeof(nd->nd_state)) ||
-		    copy_to_user(&ent->rpe_rpc_errno, &error,
-				     sizeof(error)))
-			return -EFAULT;
-
-		if (error != 0)
-			continue;
-
-		/* RPC is done */
-		rep = (srpc_generic_reply_t *)&msg->msg_body.reply;
-
-		if (copy_to_user(&ent->rpe_sid,
-				     &rep->sid, sizeof(lst_sid_t)) ||
-		    copy_to_user(&ent->rpe_fwk_errno,
-				     &rep->status, sizeof(rep->status)))
-			return -EFAULT;
-
-		if (readent == NULL)
-			continue;
-
-		error = readent(trans->tas_opc, msg, ent);
-
-		if (error != 0)
-			return error;
-	}
-
-	return 0;
-}
-
-void
-lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans)
-{
-	srpc_client_rpc_t *rpc;
-	lstcon_rpc_t *crpc;
-	lstcon_rpc_t *tmp;
-	int count = 0;
-
-	list_for_each_entry_safe(crpc, tmp, &trans->tas_rpcs_list,
-				 crp_link) {
-		rpc = crpc->crp_rpc;
-
-		spin_lock(&rpc->crpc_lock);
-
-		/* free it if not posted or finished already */
-		if (!crpc->crp_posted || crpc->crp_finished) {
-			spin_unlock(&rpc->crpc_lock);
-
-			list_del_init(&crpc->crp_link);
-			lstcon_rpc_put(crpc);
-
-			continue;
-		}
-
-		/* rpcs can be still not callbacked (even LNetMDUnlink is called)
-		 * because huge timeout for inaccessible network, don't make
-		 * user wait for them, just abandon them, they will be recycled
-		 * in callback */
-
-		LASSERT(crpc->crp_status != 0);
-
-		crpc->crp_node  = NULL;
-		crpc->crp_trans = NULL;
-		list_del_init(&crpc->crp_link);
-		count++;
-
-		spin_unlock(&rpc->crpc_lock);
-
-		atomic_dec(&trans->tas_remaining);
-	}
-
-	LASSERT(atomic_read(&trans->tas_remaining) == 0);
-
-	list_del(&trans->tas_link);
-	if (!list_empty(&trans->tas_olink))
-		list_del(&trans->tas_olink);
-
-	CDEBUG(D_NET, "Transaction %s destroyed with %d pending RPCs\n",
-	       lstcon_rpc_trans_name(trans->tas_opc), count);
-
-	LIBCFS_FREE(trans, sizeof(*trans));
-
-	return;
-}
-
-int
-lstcon_sesrpc_prep(lstcon_node_t *nd, int transop,
-		   unsigned feats, lstcon_rpc_t **crpc)
-{
-	srpc_mksn_reqst_t *msrq;
-	srpc_rmsn_reqst_t *rsrq;
-	int rc;
-
-	switch (transop) {
-	case LST_TRANS_SESNEW:
-		rc = lstcon_rpc_prep(nd, SRPC_SERVICE_MAKE_SESSION,
-				     feats, 0, 0, crpc);
-		if (rc != 0)
-			return rc;
-
-		msrq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.mksn_reqst;
-		msrq->mksn_sid     = console_session.ses_id;
-		msrq->mksn_force   = console_session.ses_force;
-		strncpy(msrq->mksn_name, console_session.ses_name,
-			strlen(console_session.ses_name));
-		break;
-
-	case LST_TRANS_SESEND:
-		rc = lstcon_rpc_prep(nd, SRPC_SERVICE_REMOVE_SESSION,
-				     feats, 0, 0, crpc);
-		if (rc != 0)
-			return rc;
-
-		rsrq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.rmsn_reqst;
-		rsrq->rmsn_sid = console_session.ses_id;
-		break;
-
-	default:
-		LBUG();
-	}
-
-	return 0;
-}
-
-int
-lstcon_dbgrpc_prep(lstcon_node_t *nd, unsigned feats, lstcon_rpc_t **crpc)
-{
-	srpc_debug_reqst_t *drq;
-	int rc;
-
-	rc = lstcon_rpc_prep(nd, SRPC_SERVICE_DEBUG, feats, 0, 0, crpc);
-	if (rc != 0)
-		return rc;
-
-	drq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.dbg_reqst;
-
-	drq->dbg_sid   = console_session.ses_id;
-	drq->dbg_flags = 0;
-
-	return rc;
-}
-
-int
-lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats,
-		   lstcon_tsb_hdr_t *tsb, lstcon_rpc_t **crpc)
-{
-	lstcon_batch_t	   *batch;
-	srpc_batch_reqst_t *brq;
-	int		    rc;
-
-	rc = lstcon_rpc_prep(nd, SRPC_SERVICE_BATCH, feats, 0, 0, crpc);
-	if (rc != 0)
-		return rc;
-
-	brq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.bat_reqst;
-
-	brq->bar_sid     = console_session.ses_id;
-	brq->bar_bid     = tsb->tsb_id;
-	brq->bar_testidx = tsb->tsb_index;
-	brq->bar_opc     = transop == LST_TRANS_TSBRUN ? SRPC_BATCH_OPC_RUN :
-			   (transop == LST_TRANS_TSBSTOP ? SRPC_BATCH_OPC_STOP :
-			    SRPC_BATCH_OPC_QUERY);
-
-	if (transop != LST_TRANS_TSBRUN &&
-	    transop != LST_TRANS_TSBSTOP)
-		return 0;
-
-	LASSERT(tsb->tsb_index == 0);
-
-	batch = (lstcon_batch_t *)tsb;
-	brq->bar_arg = batch->bat_arg;
-
-	return 0;
-}
-
-int
-lstcon_statrpc_prep(lstcon_node_t *nd, unsigned feats, lstcon_rpc_t **crpc)
-{
-	srpc_stat_reqst_t *srq;
-	int		   rc;
-
-	rc = lstcon_rpc_prep(nd, SRPC_SERVICE_QUERY_STAT, feats, 0, 0, crpc);
-	if (rc != 0)
-		return rc;
-
-	srq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.stat_reqst;
-
-	srq->str_sid  = console_session.ses_id;
-	srq->str_type = 0; /* XXX remove it */
-
-	return 0;
-}
-
-static lnet_process_id_packed_t *
-lstcon_next_id(int idx, int nkiov, lnet_kiov_t *kiov)
-{
-	lnet_process_id_packed_t *pid;
-	int i;
-
-	i = idx / SFW_ID_PER_PAGE;
-
-	LASSERT(i < nkiov);
-
-	pid = (lnet_process_id_packed_t *)page_address(kiov[i].kiov_page);
-
-	return &pid[idx % SFW_ID_PER_PAGE];
-}
-
-static int
-lstcon_dstnodes_prep(lstcon_group_t *grp, int idx,
-		     int dist, int span, int nkiov, lnet_kiov_t *kiov)
-{
-	lnet_process_id_packed_t *pid;
-	lstcon_ndlink_t *ndl;
-	lstcon_node_t *nd;
-	int start;
-	int end;
-	int i = 0;
-
-	LASSERT(dist >= 1);
-	LASSERT(span >= 1);
-	LASSERT(grp->grp_nnode >= 1);
-
-	if (span > grp->grp_nnode)
-		return -EINVAL;
-
-	start = ((idx / dist) * span) % grp->grp_nnode;
-	end   = ((idx / dist) * span + span - 1) % grp->grp_nnode;
-
-	list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link) {
-		nd = ndl->ndl_node;
-		if (i < start) {
-			i++;
-			continue;
-		}
-
-		if (i > (end >= start ? end : grp->grp_nnode))
-			break;
-
-		pid = lstcon_next_id((i - start), nkiov, kiov);
-		pid->nid = nd->nd_id.nid;
-		pid->pid = nd->nd_id.pid;
-		i++;
-	}
-
-	if (start <= end) /* done */
-		return 0;
-
-	list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link) {
-		if (i > grp->grp_nnode + end)
-			break;
-
-		nd = ndl->ndl_node;
-		pid = lstcon_next_id((i - start), nkiov, kiov);
-		pid->nid = nd->nd_id.nid;
-		pid->pid = nd->nd_id.pid;
-		i++;
-	}
-
-	return 0;
-}
-
-static int
-lstcon_pingrpc_prep(lst_test_ping_param_t *param, srpc_test_reqst_t *req)
-{
-	test_ping_req_t *prq = &req->tsr_u.ping;
-
-	prq->png_size  = param->png_size;
-	prq->png_flags = param->png_flags;
-	/* TODO dest */
-	return 0;
-}
-
-static int
-lstcon_bulkrpc_v0_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req)
-{
-	test_bulk_req_t *brq = &req->tsr_u.bulk_v0;
-
-	brq->blk_opc   = param->blk_opc;
-	brq->blk_npg   = (param->blk_size + PAGE_CACHE_SIZE - 1) /
-			  PAGE_CACHE_SIZE;
-	brq->blk_flags = param->blk_flags;
-
-	return 0;
-}
-
-static int
-lstcon_bulkrpc_v1_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req)
-{
-	test_bulk_req_v1_t *brq = &req->tsr_u.bulk_v1;
-
-	brq->blk_opc	= param->blk_opc;
-	brq->blk_flags	= param->blk_flags;
-	brq->blk_len	= param->blk_size;
-	brq->blk_offset	= 0; /* reserved */
-
-	return 0;
-}
-
-int
-lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats,
-		    lstcon_test_t *test, lstcon_rpc_t **crpc)
-{
-	lstcon_group_t    *sgrp = test->tes_src_grp;
-	lstcon_group_t    *dgrp = test->tes_dst_grp;
-	srpc_test_reqst_t *trq;
-	srpc_bulk_t       *bulk;
-	int                i;
-	int		   npg = 0;
-	int		   nob = 0;
-	int		   rc  = 0;
-
-	if (transop == LST_TRANS_TSBCLIADD) {
-		npg = sfw_id_pages(test->tes_span);
-		nob = (feats & LST_FEAT_BULK_LEN) == 0 ?
-		      npg * PAGE_CACHE_SIZE :
-		      sizeof(lnet_process_id_packed_t) * test->tes_span;
-	}
-
-	rc = lstcon_rpc_prep(nd, SRPC_SERVICE_TEST, feats, npg, nob, crpc);
-	if (rc != 0)
-		return rc;
-
-	trq  = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.tes_reqst;
-
-	if (transop == LST_TRANS_TSBSRVADD) {
-		int ndist = (sgrp->grp_nnode + test->tes_dist - 1) /
-			    test->tes_dist;
-		int nspan = (dgrp->grp_nnode + test->tes_span - 1) /
-			    test->tes_span;
-		int nmax = (ndist + nspan - 1) / nspan;
-
-		trq->tsr_ndest = 0;
-		trq->tsr_loop  = nmax * test->tes_dist * test->tes_concur;
-
-	} else {
-		bulk = &(*crpc)->crp_rpc->crpc_bulk;
-
-		for (i = 0; i < npg; i++) {
-			int	len;
-
-			LASSERT(nob > 0);
-
-			len = (feats & LST_FEAT_BULK_LEN) == 0 ?
-			      PAGE_CACHE_SIZE :
-			      min_t(int, nob, PAGE_CACHE_SIZE);
-			nob -= len;
-
-			bulk->bk_iovs[i].kiov_offset = 0;
-			bulk->bk_iovs[i].kiov_len    = len;
-			bulk->bk_iovs[i].kiov_page   =
-				alloc_page(GFP_IOFS);
-
-			if (bulk->bk_iovs[i].kiov_page == NULL) {
-				lstcon_rpc_put(*crpc);
-				return -ENOMEM;
-			}
-		}
-
-		bulk->bk_sink = 0;
-
-		LASSERT(transop == LST_TRANS_TSBCLIADD);
-
-		rc = lstcon_dstnodes_prep(test->tes_dst_grp,
-					  test->tes_cliidx++,
-					  test->tes_dist,
-					  test->tes_span,
-					  npg, &bulk->bk_iovs[0]);
-		if (rc != 0) {
-			lstcon_rpc_put(*crpc);
-			return rc;
-		}
-
-		trq->tsr_ndest = test->tes_span;
-		trq->tsr_loop  = test->tes_loop;
-	}
-
-	trq->tsr_sid        = console_session.ses_id;
-	trq->tsr_bid        = test->tes_hdr.tsb_id;
-	trq->tsr_concur     = test->tes_concur;
-	trq->tsr_is_client  = (transop == LST_TRANS_TSBCLIADD) ? 1 : 0;
-	trq->tsr_stop_onerr = !!test->tes_stop_onerr;
-
-	switch (test->tes_type) {
-	case LST_TEST_PING:
-		trq->tsr_service = SRPC_SERVICE_PING;
-		rc = lstcon_pingrpc_prep((lst_test_ping_param_t *)
-					 &test->tes_param[0], trq);
-		break;
-
-	case LST_TEST_BULK:
-		trq->tsr_service = SRPC_SERVICE_BRW;
-		if ((feats & LST_FEAT_BULK_LEN) == 0) {
-			rc = lstcon_bulkrpc_v0_prep((lst_test_bulk_param_t *)
-						    &test->tes_param[0], trq);
-		} else {
-			rc = lstcon_bulkrpc_v1_prep((lst_test_bulk_param_t *)
-						    &test->tes_param[0], trq);
-		}
-
-		break;
-	default:
-		LBUG();
-		break;
-	}
-
-	return rc;
-}
-
-static int
-lstcon_sesnew_stat_reply(lstcon_rpc_trans_t *trans,
-			 lstcon_node_t *nd, srpc_msg_t *reply)
-{
-	srpc_mksn_reply_t *mksn_rep = &reply->msg_body.mksn_reply;
-	int		   status   = mksn_rep->mksn_status;
-
-	if (status == 0 &&
-	    (reply->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
-		mksn_rep->mksn_status = EPROTO;
-		status = EPROTO;
-	}
-
-	if (status == EPROTO) {
-		CNETERR("session protocol error from %s: %u\n",
-			libcfs_nid2str(nd->nd_id.nid),
-			reply->msg_ses_feats);
-	}
-
-	if (status != 0)
-		return status;
-
-	if (!trans->tas_feats_updated) {
-		trans->tas_feats_updated = 1;
-		trans->tas_features = reply->msg_ses_feats;
-	}
-
-	if (reply->msg_ses_feats != trans->tas_features) {
-		CNETERR("Framework features %x from %s is different with features on this transaction: %x\n",
-			 reply->msg_ses_feats, libcfs_nid2str(nd->nd_id.nid),
-			 trans->tas_features);
-		status = mksn_rep->mksn_status = EPROTO;
-	}
-
-	if (status == 0) {
-		/* session timeout on remote node */
-		nd->nd_timeout = mksn_rep->mksn_timeout;
-	}
-
-	return status;
-}
-
-void
-lstcon_rpc_stat_reply(lstcon_rpc_trans_t *trans, srpc_msg_t *msg,
-		      lstcon_node_t *nd, lstcon_trans_stat_t *stat)
-{
-	srpc_rmsn_reply_t  *rmsn_rep;
-	srpc_debug_reply_t *dbg_rep;
-	srpc_batch_reply_t *bat_rep;
-	srpc_test_reply_t  *test_rep;
-	srpc_stat_reply_t  *stat_rep;
-	int                rc = 0;
-
-	switch (trans->tas_opc) {
-	case LST_TRANS_SESNEW:
-		rc = lstcon_sesnew_stat_reply(trans, nd, msg);
-		if (rc == 0) {
-			lstcon_sesop_stat_success(stat, 1);
-			return;
-		}
-
-		lstcon_sesop_stat_failure(stat, 1);
-		break;
-
-	case LST_TRANS_SESEND:
-		rmsn_rep = &msg->msg_body.rmsn_reply;
-		/* ESRCH is not an error for end session */
-		if (rmsn_rep->rmsn_status == 0 ||
-		    rmsn_rep->rmsn_status == ESRCH) {
-			lstcon_sesop_stat_success(stat, 1);
-			return;
-		}
-
-		lstcon_sesop_stat_failure(stat, 1);
-		rc = rmsn_rep->rmsn_status;
-		break;
-
-	case LST_TRANS_SESQRY:
-	case LST_TRANS_SESPING:
-		dbg_rep = &msg->msg_body.dbg_reply;
-
-		if (dbg_rep->dbg_status == ESRCH) {
-			lstcon_sesqry_stat_unknown(stat, 1);
-			return;
-		}
-
-		if (lstcon_session_match(dbg_rep->dbg_sid))
-			lstcon_sesqry_stat_active(stat, 1);
-		else
-			lstcon_sesqry_stat_busy(stat, 1);
-		return;
-
-	case LST_TRANS_TSBRUN:
-	case LST_TRANS_TSBSTOP:
-		bat_rep = &msg->msg_body.bat_reply;
-
-		if (bat_rep->bar_status == 0) {
-			lstcon_tsbop_stat_success(stat, 1);
-			return;
-		}
-
-		if (bat_rep->bar_status == EPERM &&
-		    trans->tas_opc == LST_TRANS_TSBSTOP) {
-			lstcon_tsbop_stat_success(stat, 1);
-			return;
-		}
-
-		lstcon_tsbop_stat_failure(stat, 1);
-		rc = bat_rep->bar_status;
-		break;
-
-	case LST_TRANS_TSBCLIQRY:
-	case LST_TRANS_TSBSRVQRY:
-		bat_rep = &msg->msg_body.bat_reply;
-
-		if (bat_rep->bar_active != 0)
-			lstcon_tsbqry_stat_run(stat, 1);
-		else
-			lstcon_tsbqry_stat_idle(stat, 1);
-
-		if (bat_rep->bar_status == 0)
-			return;
-
-		lstcon_tsbqry_stat_failure(stat, 1);
-		rc = bat_rep->bar_status;
-		break;
-
-	case LST_TRANS_TSBCLIADD:
-	case LST_TRANS_TSBSRVADD:
-		test_rep = &msg->msg_body.tes_reply;
-
-		if (test_rep->tsr_status == 0) {
-			lstcon_tsbop_stat_success(stat, 1);
-			return;
-		}
-
-		lstcon_tsbop_stat_failure(stat, 1);
-		rc = test_rep->tsr_status;
-		break;
-
-	case LST_TRANS_STATQRY:
-		stat_rep = &msg->msg_body.stat_reply;
-
-		if (stat_rep->str_status == 0) {
-			lstcon_statqry_stat_success(stat, 1);
-			return;
-		}
-
-		lstcon_statqry_stat_failure(stat, 1);
-		rc = stat_rep->str_status;
-		break;
-
-	default:
-		LBUG();
-	}
-
-	if (stat->trs_fwk_errno == 0)
-		stat->trs_fwk_errno = rc;
-
-	return;
-}
-
-int
-lstcon_rpc_trans_ndlist(struct list_head *ndlist,
-			struct list_head *translist, int transop,
-			void *arg, lstcon_rpc_cond_func_t condition,
-			lstcon_rpc_trans_t **transpp)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_ndlink_t *ndl;
-	lstcon_node_t *nd;
-	lstcon_rpc_t *rpc;
-	unsigned feats;
-	int rc;
-
-	/* Creating session RPG for list of nodes */
-
-	rc = lstcon_rpc_trans_prep(translist, transop, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction %d: %d\n", transop, rc);
-		return rc;
-	}
-
-	feats = trans->tas_features;
-	list_for_each_entry(ndl, ndlist, ndl_link) {
-		rc = condition == NULL ? 1 :
-		     condition(transop, ndl->ndl_node, arg);
-
-		if (rc == 0)
-			continue;
-
-		if (rc < 0) {
-			CDEBUG(D_NET, "Condition error while creating RPC for transaction %d: %d\n",
-					transop, rc);
-			break;
-		}
-
-		nd = ndl->ndl_node;
-
-		switch (transop) {
-		case LST_TRANS_SESNEW:
-		case LST_TRANS_SESEND:
-			rc = lstcon_sesrpc_prep(nd, transop, feats, &rpc);
-			break;
-		case LST_TRANS_SESQRY:
-		case LST_TRANS_SESPING:
-			rc = lstcon_dbgrpc_prep(nd, feats, &rpc);
-			break;
-		case LST_TRANS_TSBCLIADD:
-		case LST_TRANS_TSBSRVADD:
-			rc = lstcon_testrpc_prep(nd, transop, feats,
-						 (lstcon_test_t *)arg, &rpc);
-			break;
-		case LST_TRANS_TSBRUN:
-		case LST_TRANS_TSBSTOP:
-		case LST_TRANS_TSBCLIQRY:
-		case LST_TRANS_TSBSRVQRY:
-			rc = lstcon_batrpc_prep(nd, transop, feats,
-						(lstcon_tsb_hdr_t *)arg, &rpc);
-			break;
-		case LST_TRANS_STATQRY:
-			rc = lstcon_statrpc_prep(nd, feats, &rpc);
-			break;
-		default:
-			rc = -EINVAL;
-			break;
-		}
-
-		if (rc != 0) {
-			CERROR("Failed to create RPC for transaction %s: %d\n",
-			       lstcon_rpc_trans_name(transop), rc);
-			break;
-		}
-
-		lstcon_rpc_trans_addreq(trans, rpc);
-	}
-
-	if (rc == 0) {
-		*transpp = trans;
-		return 0;
-	}
-
-	lstcon_rpc_trans_destroy(trans);
-
-	return rc;
-}
-
-static void
-lstcon_rpc_pinger(void *arg)
-{
-	stt_timer_t *ptimer = (stt_timer_t *)arg;
-	lstcon_rpc_trans_t *trans;
-	lstcon_rpc_t *crpc;
-	srpc_msg_t *rep;
-	srpc_debug_reqst_t *drq;
-	lstcon_ndlink_t *ndl;
-	lstcon_node_t *nd;
-	time_t intv;
-	int count = 0;
-	int rc;
-
-	/* RPC pinger is a special case of transaction,
-	 * it's called by timer at 8 seconds interval.
-	 */
-	mutex_lock(&console_session.ses_mutex);
-
-	if (console_session.ses_shutdown || console_session.ses_expired) {
-		mutex_unlock(&console_session.ses_mutex);
-		return;
-	}
-
-	if (!console_session.ses_expired &&
-	    get_seconds() - console_session.ses_laststamp >
-	    (time_t)console_session.ses_timeout)
-		console_session.ses_expired = 1;
-
-	trans = console_session.ses_ping;
-
-	LASSERT(trans != NULL);
-
-	list_for_each_entry(ndl, &console_session.ses_ndl_list, ndl_link) {
-		nd = ndl->ndl_node;
-
-		if (console_session.ses_expired) {
-			/* idle console, end session on all nodes */
-			if (nd->nd_state != LST_NODE_ACTIVE)
-				continue;
-
-			rc = lstcon_sesrpc_prep(nd, LST_TRANS_SESEND,
-						trans->tas_features, &crpc);
-			if (rc != 0) {
-				CERROR("Out of memory\n");
-				break;
-			}
-
-			lstcon_rpc_trans_addreq(trans, crpc);
-			lstcon_rpc_post(crpc);
-
-			continue;
-		}
-
-		crpc = &nd->nd_ping;
-
-		if (crpc->crp_rpc != NULL) {
-			LASSERT(crpc->crp_trans == trans);
-			LASSERT(!list_empty(&crpc->crp_link));
-
-			spin_lock(&crpc->crp_rpc->crpc_lock);
-
-			LASSERT(crpc->crp_posted);
-
-			if (!crpc->crp_finished) {
-				/* in flight */
-				spin_unlock(&crpc->crp_rpc->crpc_lock);
-				continue;
-			}
-
-			spin_unlock(&crpc->crp_rpc->crpc_lock);
-
-			lstcon_rpc_get_reply(crpc, &rep);
-
-			list_del_init(&crpc->crp_link);
-
-			lstcon_rpc_put(crpc);
-		}
-
-		if (nd->nd_state != LST_NODE_ACTIVE)
-			continue;
-
-		intv = cfs_duration_sec(cfs_time_sub(cfs_time_current(),
-						     nd->nd_stamp));
-		if (intv < (time_t)nd->nd_timeout / 2)
-			continue;
-
-		rc = lstcon_rpc_init(nd, SRPC_SERVICE_DEBUG,
-				     trans->tas_features, 0, 0, 1, crpc);
-		if (rc != 0) {
-			CERROR("Out of memory\n");
-			break;
-		}
-
-		drq = &crpc->crp_rpc->crpc_reqstmsg.msg_body.dbg_reqst;
-
-		drq->dbg_sid   = console_session.ses_id;
-		drq->dbg_flags = 0;
-
-		lstcon_rpc_trans_addreq(trans, crpc);
-		lstcon_rpc_post(crpc);
-
-		count++;
-	}
-
-	if (console_session.ses_expired) {
-		mutex_unlock(&console_session.ses_mutex);
-		return;
-	}
-
-	CDEBUG(D_NET, "Ping %d nodes in session\n", count);
-
-	ptimer->stt_expires = (unsigned long)(get_seconds() + LST_PING_INTERVAL);
-	stt_add_timer(ptimer);
-
-	mutex_unlock(&console_session.ses_mutex);
-}
-
-int
-lstcon_rpc_pinger_start(void)
-{
-	stt_timer_t *ptimer;
-	int rc;
-
-	LASSERT(list_empty(&console_session.ses_rpc_freelist));
-	LASSERT(atomic_read(&console_session.ses_rpc_counter) == 0);
-
-	rc = lstcon_rpc_trans_prep(NULL, LST_TRANS_SESPING,
-				   &console_session.ses_ping);
-	if (rc != 0) {
-		CERROR("Failed to create console pinger\n");
-		return rc;
-	}
-
-	ptimer = &console_session.ses_ping_timer;
-	ptimer->stt_expires = (unsigned long)(get_seconds() + LST_PING_INTERVAL);
-
-	stt_add_timer(ptimer);
-
-	return 0;
-}
-
-void
-lstcon_rpc_pinger_stop(void)
-{
-	LASSERT(console_session.ses_shutdown);
-
-	stt_del_timer(&console_session.ses_ping_timer);
-
-	lstcon_rpc_trans_abort(console_session.ses_ping, -ESHUTDOWN);
-	lstcon_rpc_trans_stat(console_session.ses_ping, lstcon_trans_stat());
-	lstcon_rpc_trans_destroy(console_session.ses_ping);
-
-	memset(lstcon_trans_stat(), 0, sizeof(lstcon_trans_stat_t));
-
-	console_session.ses_ping = NULL;
-}
-
-void
-lstcon_rpc_cleanup_wait(void)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_rpc_t *crpc;
-	struct list_head *pacer;
-	struct list_head zlist;
-
-	/* Called with hold of global mutex */
-
-	LASSERT(console_session.ses_shutdown);
-
-	while (!list_empty(&console_session.ses_trans_list)) {
-		list_for_each(pacer, &console_session.ses_trans_list) {
-			trans = list_entry(pacer, lstcon_rpc_trans_t,
-					       tas_link);
-
-			CDEBUG(D_NET, "Session closed, wakeup transaction %s\n",
-			       lstcon_rpc_trans_name(trans->tas_opc));
-
-			wake_up(&trans->tas_waitq);
-		}
-
-		mutex_unlock(&console_session.ses_mutex);
-
-		CWARN("Session is shutting down, waiting for termination of transactions\n");
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1));
-
-		mutex_lock(&console_session.ses_mutex);
-	}
-
-	spin_lock(&console_session.ses_rpc_lock);
-
-	lst_wait_until((atomic_read(&console_session.ses_rpc_counter) == 0),
-		       console_session.ses_rpc_lock,
-		       "Network is not accessible or target is down, waiting for %d console RPCs to being recycled\n",
-		       atomic_read(&console_session.ses_rpc_counter));
-
-	list_add(&zlist, &console_session.ses_rpc_freelist);
-	list_del_init(&console_session.ses_rpc_freelist);
-
-	spin_unlock(&console_session.ses_rpc_lock);
-
-	while (!list_empty(&zlist)) {
-		crpc = list_entry(zlist.next, lstcon_rpc_t, crp_link);
-
-		list_del(&crpc->crp_link);
-		LIBCFS_FREE(crpc, sizeof(lstcon_rpc_t));
-	}
-}
-
-int
-lstcon_rpc_module_init(void)
-{
-	INIT_LIST_HEAD(&console_session.ses_ping_timer.stt_list);
-	console_session.ses_ping_timer.stt_func = lstcon_rpc_pinger;
-	console_session.ses_ping_timer.stt_data = &console_session.ses_ping_timer;
-
-	console_session.ses_ping = NULL;
-
-	spin_lock_init(&console_session.ses_rpc_lock);
-	atomic_set(&console_session.ses_rpc_counter, 0);
-	INIT_LIST_HEAD(&console_session.ses_rpc_freelist);
-
-	return 0;
-}
-
-void
-lstcon_rpc_module_fini(void)
-{
-	LASSERT(list_empty(&console_session.ses_rpc_freelist));
-	LASSERT(atomic_read(&console_session.ses_rpc_counter) == 0);
-}
diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.h b/drivers/staging/lustre/lnet/selftest/conrpc.h
deleted file mode 100644
index 7d33cf9e9d99..000000000000
--- a/drivers/staging/lustre/lnet/selftest/conrpc.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * /lnet/selftest/conrpc.h
- *
- * Console rpc
- *
- * Author: Liang Zhen <liang@whamcloud.com>
- */
-
-#ifndef __LST_CONRPC_H__
-#define __LST_CONRPC_H__
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lnet.h"
-#include "../../include/linux/lnet/lib-types.h"
-#include "../../include/linux/lnet/lnetst.h"
-#include "rpc.h"
-#include "selftest.h"
-
-/* Console rpc and rpc transaction */
-#define LST_TRANS_TIMEOUT       30
-#define LST_TRANS_MIN_TIMEOUT   3
-
-#define LST_VALIDATE_TIMEOUT(t) min(max(t, LST_TRANS_MIN_TIMEOUT), LST_TRANS_TIMEOUT)
-
-#define LST_PING_INTERVAL       8
-
-struct lstcon_rpc_trans;
-struct lstcon_tsb_hdr;
-struct lstcon_test;
-struct lstcon_node;
-
-typedef struct lstcon_rpc {
-	struct list_head        crp_link;       /* chain on rpc transaction */
-	srpc_client_rpc_t       *crp_rpc;	/* client rpc */
-	struct lstcon_node      *crp_node;      /* destination node */
-	struct lstcon_rpc_trans *crp_trans;     /* conrpc transaction */
-
-	unsigned int            crp_posted:1;   /* rpc is posted */
-	unsigned int            crp_finished:1; /* rpc is finished */
-	unsigned int            crp_unpacked:1; /* reply is unpacked */
-	/** RPC is embedded in other structure and can't free it */
-	unsigned int            crp_embedded:1;
-	int                     crp_status;     /* console rpc errors */
-	unsigned long           crp_stamp;      /* replied time stamp */
-} lstcon_rpc_t;
-
-typedef struct lstcon_rpc_trans {
-	struct list_head  tas_olink;         /* link chain on owner list */
-	struct list_head  tas_link;          /* link chain on global list */
-	int               tas_opc;           /* operation code of transaction */
-	unsigned          tas_feats_updated; /* features mask is uptodate */
-	unsigned          tas_features;      /* test features mask */
-	wait_queue_head_t tas_waitq;         /* wait queue head */
-	atomic_t          tas_remaining;     /* # of un-scheduled rpcs */
-	struct list_head  tas_rpcs_list;     /* queued requests */
-} lstcon_rpc_trans_t;
-
-#define LST_TRANS_PRIVATE       0x1000
-
-#define LST_TRANS_SESNEW	(LST_TRANS_PRIVATE | 0x01)
-#define LST_TRANS_SESEND	(LST_TRANS_PRIVATE | 0x02)
-#define LST_TRANS_SESQRY	0x03
-#define LST_TRANS_SESPING       0x04
-
-#define LST_TRANS_TSBCLIADD     (LST_TRANS_PRIVATE | 0x11)
-#define LST_TRANS_TSBSRVADD     (LST_TRANS_PRIVATE | 0x12)
-#define LST_TRANS_TSBRUN	(LST_TRANS_PRIVATE | 0x13)
-#define LST_TRANS_TSBSTOP       (LST_TRANS_PRIVATE | 0x14)
-#define LST_TRANS_TSBCLIQRY     0x15
-#define LST_TRANS_TSBSRVQRY     0x16
-
-#define LST_TRANS_STATQRY       0x21
-
-typedef int (* lstcon_rpc_cond_func_t)(int, struct lstcon_node *, void *);
-typedef int (* lstcon_rpc_readent_func_t)(int, srpc_msg_t *, lstcon_rpc_ent_t *);
-
-int  lstcon_sesrpc_prep(struct lstcon_node *nd, int transop,
-			unsigned version, lstcon_rpc_t **crpc);
-int  lstcon_dbgrpc_prep(struct lstcon_node *nd,
-			unsigned version, lstcon_rpc_t **crpc);
-int  lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned version,
-			struct lstcon_tsb_hdr *tsb, lstcon_rpc_t **crpc);
-int  lstcon_testrpc_prep(struct lstcon_node *nd, int transop, unsigned version,
-			 struct lstcon_test *test, lstcon_rpc_t **crpc);
-int  lstcon_statrpc_prep(struct lstcon_node *nd, unsigned version,
-			 lstcon_rpc_t **crpc);
-void lstcon_rpc_put(lstcon_rpc_t *crpc);
-int  lstcon_rpc_trans_prep(struct list_head *translist,
-			   int transop, lstcon_rpc_trans_t **transpp);
-int  lstcon_rpc_trans_ndlist(struct list_head *ndlist,
-			     struct list_head *translist, int transop,
-			     void *arg, lstcon_rpc_cond_func_t condition,
-			     lstcon_rpc_trans_t **transpp);
-void lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans,
-			   lstcon_trans_stat_t *stat);
-int  lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans,
-				  struct list_head *head_up,
-				  lstcon_rpc_readent_func_t readent);
-void lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error);
-void lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans);
-void lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, lstcon_rpc_t *req);
-int  lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout);
-int  lstcon_rpc_pinger_start(void);
-void lstcon_rpc_pinger_stop(void);
-void lstcon_rpc_cleanup_wait(void);
-int  lstcon_rpc_module_init(void);
-void lstcon_rpc_module_fini(void);
-
-
-#endif
diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c
deleted file mode 100644
index f47c8f27f975..000000000000
--- a/drivers/staging/lustre/lnet/selftest/console.c
+++ /dev/null
@@ -1,2096 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/conctl.c
- *
- * Infrastructure of LST console
- *
- * Author: Liang Zhen <liangzhen@clusterfs.com>
- */
-
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lib-lnet.h"
-#include "console.h"
-#include "conrpc.h"
-
-#define LST_NODE_STATE_COUNTER(nd, p)			\
-do {							\
-	if ((nd)->nd_state == LST_NODE_ACTIVE)		\
-		(p)->nle_nactive++;			\
-	else if ((nd)->nd_state == LST_NODE_BUSY)       \
-		(p)->nle_nbusy++;			\
-	else if ((nd)->nd_state == LST_NODE_DOWN)       \
-		(p)->nle_ndown++;			\
-	else						\
-		(p)->nle_nunknown++;			\
-	(p)->nle_nnode++;				\
-} while (0)
-
-lstcon_session_t console_session;
-
-static void
-lstcon_node_get(lstcon_node_t *nd)
-{
-	LASSERT(nd->nd_ref >= 1);
-
-	nd->nd_ref++;
-}
-
-static int
-lstcon_node_find(lnet_process_id_t id, lstcon_node_t **ndpp, int create)
-{
-	lstcon_ndlink_t *ndl;
-	unsigned int idx = LNET_NIDADDR(id.nid) % LST_GLOBAL_HASHSIZE;
-
-	LASSERT(id.nid != LNET_NID_ANY);
-
-	list_for_each_entry(ndl, &console_session.ses_ndl_hash[idx], ndl_hlink) {
-		if (ndl->ndl_node->nd_id.nid != id.nid ||
-		    ndl->ndl_node->nd_id.pid != id.pid)
-			continue;
-
-		lstcon_node_get(ndl->ndl_node);
-		*ndpp = ndl->ndl_node;
-		return 0;
-	}
-
-	if (!create)
-		return -ENOENT;
-
-	LIBCFS_ALLOC(*ndpp, sizeof(lstcon_node_t) + sizeof(lstcon_ndlink_t));
-	if (*ndpp == NULL)
-		return -ENOMEM;
-
-	ndl = (lstcon_ndlink_t *)(*ndpp + 1);
-
-	ndl->ndl_node = *ndpp;
-
-	ndl->ndl_node->nd_ref   = 1;
-	ndl->ndl_node->nd_id    = id;
-	ndl->ndl_node->nd_stamp = cfs_time_current();
-	ndl->ndl_node->nd_state = LST_NODE_UNKNOWN;
-	ndl->ndl_node->nd_timeout = 0;
-	memset(&ndl->ndl_node->nd_ping, 0, sizeof(lstcon_rpc_t));
-
-	/* queued in global hash & list, no refcount is taken by
-	 * global hash & list, if caller release his refcount,
-	 * node will be released */
-	list_add_tail(&ndl->ndl_hlink, &console_session.ses_ndl_hash[idx]);
-	list_add_tail(&ndl->ndl_link, &console_session.ses_ndl_list);
-
-	return 0;
-}
-
-static void
-lstcon_node_put(lstcon_node_t *nd)
-{
-	lstcon_ndlink_t *ndl;
-
-	LASSERT(nd->nd_ref > 0);
-
-	if (--nd->nd_ref > 0)
-		return;
-
-	ndl = (lstcon_ndlink_t *)(nd + 1);
-
-	LASSERT(!list_empty(&ndl->ndl_link));
-	LASSERT(!list_empty(&ndl->ndl_hlink));
-
-	/* remove from session */
-	list_del(&ndl->ndl_link);
-	list_del(&ndl->ndl_hlink);
-
-	LIBCFS_FREE(nd, sizeof(lstcon_node_t) + sizeof(lstcon_ndlink_t));
-}
-
-static int
-lstcon_ndlink_find(struct list_head *hash,
-		   lnet_process_id_t id, lstcon_ndlink_t **ndlpp, int create)
-{
-	unsigned int idx = LNET_NIDADDR(id.nid) % LST_NODE_HASHSIZE;
-	lstcon_ndlink_t *ndl;
-	lstcon_node_t *nd;
-	int rc;
-
-	if (id.nid == LNET_NID_ANY)
-		return -EINVAL;
-
-	/* search in hash */
-	list_for_each_entry(ndl, &hash[idx], ndl_hlink) {
-		if (ndl->ndl_node->nd_id.nid != id.nid ||
-		    ndl->ndl_node->nd_id.pid != id.pid)
-			continue;
-
-		*ndlpp = ndl;
-		return 0;
-	}
-
-	if (create == 0)
-		return -ENOENT;
-
-	/* find or create in session hash */
-	rc = lstcon_node_find(id, &nd, (create == 1) ? 1 : 0);
-	if (rc != 0)
-		return rc;
-
-	LIBCFS_ALLOC(ndl, sizeof(lstcon_ndlink_t));
-	if (ndl == NULL) {
-		lstcon_node_put(nd);
-		return -ENOMEM;
-	}
-
-	*ndlpp = ndl;
-
-	ndl->ndl_node = nd;
-	INIT_LIST_HEAD(&ndl->ndl_link);
-	list_add_tail(&ndl->ndl_hlink, &hash[idx]);
-
-	return  0;
-}
-
-static void
-lstcon_ndlink_release(lstcon_ndlink_t *ndl)
-{
-	LASSERT(list_empty(&ndl->ndl_link));
-	LASSERT(!list_empty(&ndl->ndl_hlink));
-
-	list_del(&ndl->ndl_hlink); /* delete from hash */
-	lstcon_node_put(ndl->ndl_node);
-
-	LIBCFS_FREE(ndl, sizeof(*ndl));
-}
-
-static int
-lstcon_group_alloc(char *name, lstcon_group_t **grpp)
-{
-	lstcon_group_t *grp;
-	int i;
-
-	LIBCFS_ALLOC(grp, offsetof(lstcon_group_t,
-				   grp_ndl_hash[LST_NODE_HASHSIZE]));
-	if (grp == NULL)
-		return -ENOMEM;
-
-	grp->grp_ref = 1;
-	if (name != NULL)
-		strcpy(grp->grp_name, name);
-
-	INIT_LIST_HEAD(&grp->grp_link);
-	INIT_LIST_HEAD(&grp->grp_ndl_list);
-	INIT_LIST_HEAD(&grp->grp_trans_list);
-
-	for (i = 0; i < LST_NODE_HASHSIZE; i++)
-		INIT_LIST_HEAD(&grp->grp_ndl_hash[i]);
-
-	*grpp = grp;
-
-	return 0;
-}
-
-static void
-lstcon_group_addref(lstcon_group_t *grp)
-{
-	grp->grp_ref++;
-}
-
-static void lstcon_group_ndlink_release(lstcon_group_t *, lstcon_ndlink_t *);
-
-static void
-lstcon_group_drain(lstcon_group_t *grp, int keep)
-{
-	lstcon_ndlink_t *ndl;
-	lstcon_ndlink_t *tmp;
-
-	list_for_each_entry_safe(ndl, tmp, &grp->grp_ndl_list, ndl_link) {
-		if ((ndl->ndl_node->nd_state & keep) == 0)
-			lstcon_group_ndlink_release(grp, ndl);
-	}
-}
-
-static void
-lstcon_group_decref(lstcon_group_t *grp)
-{
-	int i;
-
-	if (--grp->grp_ref > 0)
-		return;
-
-	if (!list_empty(&grp->grp_link))
-		list_del(&grp->grp_link);
-
-	lstcon_group_drain(grp, 0);
-
-	for (i = 0; i < LST_NODE_HASHSIZE; i++) {
-		LASSERT(list_empty(&grp->grp_ndl_hash[i]));
-	}
-
-	LIBCFS_FREE(grp, offsetof(lstcon_group_t,
-				  grp_ndl_hash[LST_NODE_HASHSIZE]));
-}
-
-static int
-lstcon_group_find(const char *name, lstcon_group_t **grpp)
-{
-	lstcon_group_t *grp;
-
-	list_for_each_entry(grp, &console_session.ses_grp_list, grp_link) {
-		if (strncmp(grp->grp_name, name, LST_NAME_SIZE) != 0)
-			continue;
-
-		lstcon_group_addref(grp);  /* +1 ref for caller */
-		*grpp = grp;
-		return 0;
-	}
-
-	return -ENOENT;
-}
-
-static void
-lstcon_group_put(lstcon_group_t *grp)
-{
-	lstcon_group_decref(grp);
-}
-
-static int
-lstcon_group_ndlink_find(lstcon_group_t *grp, lnet_process_id_t id,
-			 lstcon_ndlink_t **ndlpp, int create)
-{
-	int rc;
-
-	rc = lstcon_ndlink_find(&grp->grp_ndl_hash[0], id, ndlpp, create);
-	if (rc != 0)
-		return rc;
-
-	if (!list_empty(&(*ndlpp)->ndl_link))
-		return 0;
-
-	list_add_tail(&(*ndlpp)->ndl_link, &grp->grp_ndl_list);
-	grp->grp_nnode++;
-
-	return 0;
-}
-
-static void
-lstcon_group_ndlink_release(lstcon_group_t *grp, lstcon_ndlink_t *ndl)
-{
-	list_del_init(&ndl->ndl_link);
-	lstcon_ndlink_release(ndl);
-	grp->grp_nnode --;
-}
-
-static void
-lstcon_group_ndlink_move(lstcon_group_t *old,
-			 lstcon_group_t *new, lstcon_ndlink_t *ndl)
-{
-	unsigned int idx = LNET_NIDADDR(ndl->ndl_node->nd_id.nid) %
-			   LST_NODE_HASHSIZE;
-
-	list_del(&ndl->ndl_hlink);
-	list_del(&ndl->ndl_link);
-	old->grp_nnode --;
-
-	list_add_tail(&ndl->ndl_hlink, &new->grp_ndl_hash[idx]);
-	list_add_tail(&ndl->ndl_link, &new->grp_ndl_list);
-	new->grp_nnode++;
-
-	return;
-}
-
-static void
-lstcon_group_move(lstcon_group_t *old, lstcon_group_t *new)
-{
-	lstcon_ndlink_t *ndl;
-
-	while (!list_empty(&old->grp_ndl_list)) {
-		ndl = list_entry(old->grp_ndl_list.next,
-				     lstcon_ndlink_t, ndl_link);
-		lstcon_group_ndlink_move(old, new, ndl);
-	}
-}
-
-static int
-lstcon_sesrpc_condition(int transop, lstcon_node_t *nd, void *arg)
-{
-	lstcon_group_t *grp = (lstcon_group_t *)arg;
-
-	switch (transop) {
-	case LST_TRANS_SESNEW:
-		if (nd->nd_state == LST_NODE_ACTIVE)
-			return 0;
-		break;
-
-	case LST_TRANS_SESEND:
-		if (nd->nd_state != LST_NODE_ACTIVE)
-			return 0;
-
-		if (grp != NULL && nd->nd_ref > 1)
-			return 0;
-		break;
-
-	case LST_TRANS_SESQRY:
-		break;
-
-	default:
-		LBUG();
-	}
-
-	return 1;
-}
-
-static int
-lstcon_sesrpc_readent(int transop, srpc_msg_t *msg,
-		      lstcon_rpc_ent_t *ent_up)
-{
-	srpc_debug_reply_t *rep;
-
-	switch (transop) {
-	case LST_TRANS_SESNEW:
-	case LST_TRANS_SESEND:
-		return 0;
-
-	case LST_TRANS_SESQRY:
-		rep = &msg->msg_body.dbg_reply;
-
-		if (copy_to_user(&ent_up->rpe_priv[0],
-				     &rep->dbg_timeout, sizeof(int)) ||
-		    copy_to_user(&ent_up->rpe_payload[0],
-				     &rep->dbg_name, LST_NAME_SIZE))
-			return -EFAULT;
-
-		return 0;
-
-	default:
-		LBUG();
-	}
-
-	return 0;
-}
-
-static int
-lstcon_group_nodes_add(lstcon_group_t *grp,
-		       int count, lnet_process_id_t *ids_up,
-		       unsigned *featp, struct list_head *result_up)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_ndlink_t *ndl;
-	lstcon_group_t *tmp;
-	lnet_process_id_t id;
-	int i;
-	int rc;
-
-	rc = lstcon_group_alloc(NULL, &tmp);
-	if (rc != 0) {
-		CERROR("Out of memory\n");
-		return -ENOMEM;
-	}
-
-	for (i = 0 ; i < count; i++) {
-		if (copy_from_user(&id, &ids_up[i], sizeof(id))) {
-			rc = -EFAULT;
-			break;
-		}
-
-		/* skip if it's in this group already */
-		rc = lstcon_group_ndlink_find(grp, id, &ndl, 0);
-		if (rc == 0)
-			continue;
-
-		/* add to tmp group */
-		rc = lstcon_group_ndlink_find(tmp, id, &ndl, 1);
-		if (rc != 0) {
-			CERROR("Can't create ndlink, out of memory\n");
-			break;
-		}
-	}
-
-	if (rc != 0) {
-		lstcon_group_put(tmp);
-		return rc;
-	}
-
-	rc = lstcon_rpc_trans_ndlist(&tmp->grp_ndl_list,
-				     &tmp->grp_trans_list, LST_TRANS_SESNEW,
-				     tmp, lstcon_sesrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		lstcon_group_put(tmp);
-		return rc;
-	}
-
-	/* post all RPCs */
-	lstcon_rpc_trans_postwait(trans, LST_TRANS_TIMEOUT);
-
-	rc = lstcon_rpc_trans_interpreter(trans, result_up,
-					  lstcon_sesrpc_readent);
-	*featp = trans->tas_features;
-
-	/* destroy all RPGs */
-	lstcon_rpc_trans_destroy(trans);
-
-	lstcon_group_move(tmp, grp);
-	lstcon_group_put(tmp);
-
-	return rc;
-}
-
-static int
-lstcon_group_nodes_remove(lstcon_group_t *grp,
-			  int count, lnet_process_id_t *ids_up,
-			  struct list_head *result_up)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_ndlink_t *ndl;
-	lstcon_group_t *tmp;
-	lnet_process_id_t id;
-	int rc;
-	int i;
-
-	/* End session and remove node from the group */
-
-	rc = lstcon_group_alloc(NULL, &tmp);
-	if (rc != 0) {
-		CERROR("Out of memory\n");
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < count; i++) {
-		if (copy_from_user(&id, &ids_up[i], sizeof(id))) {
-			rc = -EFAULT;
-			goto error;
-		}
-
-		/* move node to tmp group */
-		if (lstcon_group_ndlink_find(grp, id, &ndl, 0) == 0)
-			lstcon_group_ndlink_move(grp, tmp, ndl);
-	}
-
-	rc = lstcon_rpc_trans_ndlist(&tmp->grp_ndl_list,
-				     &tmp->grp_trans_list, LST_TRANS_SESEND,
-				     tmp, lstcon_sesrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		goto error;
-	}
-
-	lstcon_rpc_trans_postwait(trans, LST_TRANS_TIMEOUT);
-
-	rc = lstcon_rpc_trans_interpreter(trans, result_up, NULL);
-
-	lstcon_rpc_trans_destroy(trans);
-	/* release nodes anyway, because we can't rollback status */
-	lstcon_group_put(tmp);
-
-	return rc;
-error:
-	lstcon_group_move(tmp, grp);
-	lstcon_group_put(tmp);
-
-	return rc;
-}
-
-int
-lstcon_group_add(char *name)
-{
-	lstcon_group_t *grp;
-	int rc;
-
-	rc = (lstcon_group_find(name, &grp) == 0)? -EEXIST: 0;
-	if (rc != 0) {
-		/* find a group with same name */
-		lstcon_group_put(grp);
-		return rc;
-	}
-
-	rc = lstcon_group_alloc(name, &grp);
-	if (rc != 0) {
-		CERROR("Can't allocate descriptor for group %s\n", name);
-		return -ENOMEM;
-	}
-
-	list_add_tail(&grp->grp_link, &console_session.ses_grp_list);
-
-	return rc;
-}
-
-int
-lstcon_nodes_add(char *name, int count, lnet_process_id_t *ids_up,
-		 unsigned *featp, struct list_head *result_up)
-{
-	lstcon_group_t *grp;
-	int rc;
-
-	LASSERT(count > 0);
-	LASSERT(ids_up != NULL);
-
-	rc = lstcon_group_find(name, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find group %s\n", name);
-		return rc;
-	}
-
-	if (grp->grp_ref > 2) {
-		/* referred by other threads or test */
-		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
-
-		return -EBUSY;
-	}
-
-	rc = lstcon_group_nodes_add(grp, count, ids_up, featp, result_up);
-
-	lstcon_group_put(grp);
-
-	return rc;
-}
-
-int
-lstcon_group_del(char *name)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_group_t *grp;
-	int rc;
-
-	rc = lstcon_group_find(name, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find group: %s\n", name);
-		return rc;
-	}
-
-	if (grp->grp_ref > 2) {
-		/* referred by others threads or test */
-		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
-		return -EBUSY;
-	}
-
-	rc = lstcon_rpc_trans_ndlist(&grp->grp_ndl_list,
-				     &grp->grp_trans_list, LST_TRANS_SESEND,
-				     grp, lstcon_sesrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		lstcon_group_put(grp);
-		return rc;
-	}
-
-	lstcon_rpc_trans_postwait(trans, LST_TRANS_TIMEOUT);
-
-	lstcon_rpc_trans_destroy(trans);
-
-	lstcon_group_put(grp);
-	/* -ref for session, it's destroyed,
-	 * status can't be rolled back, destroy group anyway */
-	lstcon_group_put(grp);
-
-	return rc;
-}
-
-int
-lstcon_group_clean(char *name, int args)
-{
-	lstcon_group_t *grp = NULL;
-	int rc;
-
-	rc = lstcon_group_find(name, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find group %s\n", name);
-		return rc;
-	}
-
-	if (grp->grp_ref > 2) {
-		/* referred by test */
-		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
-		return -EBUSY;
-	}
-
-	args = (LST_NODE_ACTIVE | LST_NODE_BUSY |
-		LST_NODE_DOWN | LST_NODE_UNKNOWN) & ~args;
-
-	lstcon_group_drain(grp, args);
-
-	lstcon_group_put(grp);
-	/* release empty group */
-	if (list_empty(&grp->grp_ndl_list))
-		lstcon_group_put(grp);
-
-	return 0;
-}
-
-int
-lstcon_nodes_remove(char *name, int count,
-		    lnet_process_id_t *ids_up, struct list_head *result_up)
-{
-	lstcon_group_t *grp = NULL;
-	int rc;
-
-	rc = lstcon_group_find(name, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find group: %s\n", name);
-		return rc;
-	}
-
-	if (grp->grp_ref > 2) {
-		/* referred by test */
-		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
-		return -EBUSY;
-	}
-
-	rc = lstcon_group_nodes_remove(grp, count, ids_up, result_up);
-
-	lstcon_group_put(grp);
-	/* release empty group */
-	if (list_empty(&grp->grp_ndl_list))
-		lstcon_group_put(grp);
-
-	return rc;
-}
-
-int
-lstcon_group_refresh(char *name, struct list_head *result_up)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_group_t *grp;
-	int rc;
-
-	rc = lstcon_group_find(name, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find group: %s\n", name);
-		return rc;
-	}
-
-	if (grp->grp_ref > 2) {
-		/* referred by test */
-		CDEBUG(D_NET, "Group %s is busy\n", name);
-		lstcon_group_put(grp);
-		return -EBUSY;
-	}
-
-	/* re-invite all inactive nodes int the group */
-	rc = lstcon_rpc_trans_ndlist(&grp->grp_ndl_list,
-				     &grp->grp_trans_list, LST_TRANS_SESNEW,
-				     grp, lstcon_sesrpc_condition, &trans);
-	if (rc != 0) {
-		/* local error, return */
-		CDEBUG(D_NET, "Can't create transaction: %d\n", rc);
-		lstcon_group_put(grp);
-		return rc;
-	}
-
-	lstcon_rpc_trans_postwait(trans, LST_TRANS_TIMEOUT);
-
-	rc = lstcon_rpc_trans_interpreter(trans, result_up, NULL);
-
-	lstcon_rpc_trans_destroy(trans);
-	/* -ref for me */
-	lstcon_group_put(grp);
-
-	return rc;
-}
-
-int
-lstcon_group_list(int index, int len, char *name_up)
-{
-	lstcon_group_t *grp;
-
-	LASSERT(index >= 0);
-	LASSERT(name_up != NULL);
-
-	list_for_each_entry(grp, &console_session.ses_grp_list, grp_link) {
-		if (index-- == 0) {
-			return copy_to_user(name_up, grp->grp_name, len) ?
-			       -EFAULT : 0;
-		}
-	}
-
-	return -ENOENT;
-}
-
-static int
-lstcon_nodes_getent(struct list_head *head, int *index_p,
-		    int *count_p, lstcon_node_ent_t *dents_up)
-{
-	lstcon_ndlink_t *ndl;
-	lstcon_node_t *nd;
-	int count = 0;
-	int index = 0;
-
-	LASSERT(index_p != NULL && count_p != NULL);
-	LASSERT(dents_up != NULL);
-	LASSERT(*index_p >= 0);
-	LASSERT(*count_p > 0);
-
-	list_for_each_entry(ndl, head, ndl_link) {
-		if (index++ < *index_p)
-			continue;
-
-		if (count >= *count_p)
-			break;
-
-		nd = ndl->ndl_node;
-		if (copy_to_user(&dents_up[count].nde_id,
-				     &nd->nd_id, sizeof(nd->nd_id)) ||
-		    copy_to_user(&dents_up[count].nde_state,
-				     &nd->nd_state, sizeof(nd->nd_state)))
-			return -EFAULT;
-
-		count++;
-	}
-
-	if (index <= *index_p)
-		return -ENOENT;
-
-	*count_p = count;
-	*index_p = index;
-
-	return 0;
-}
-
-int
-lstcon_group_info(char *name, lstcon_ndlist_ent_t *gents_p,
-		  int *index_p, int *count_p, lstcon_node_ent_t *dents_up)
-{
-	lstcon_ndlist_ent_t *gentp;
-	lstcon_group_t *grp;
-	lstcon_ndlink_t *ndl;
-	int rc;
-
-	rc = lstcon_group_find(name, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find group %s\n", name);
-		return rc;
-	}
-
-	if (dents_up) {
-		/* verbose query */
-		rc = lstcon_nodes_getent(&grp->grp_ndl_list,
-					 index_p, count_p, dents_up);
-		lstcon_group_put(grp);
-
-		return rc;
-	}
-
-	/* non-verbose query */
-	LIBCFS_ALLOC(gentp, sizeof(lstcon_ndlist_ent_t));
-	if (gentp == NULL) {
-		CERROR("Can't allocate ndlist_ent\n");
-		lstcon_group_put(grp);
-
-		return -ENOMEM;
-	}
-
-	list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link)
-		LST_NODE_STATE_COUNTER(ndl->ndl_node, gentp);
-
-	rc = copy_to_user(gents_p, gentp,
-			      sizeof(lstcon_ndlist_ent_t)) ? -EFAULT: 0;
-
-	LIBCFS_FREE(gentp, sizeof(lstcon_ndlist_ent_t));
-
-	lstcon_group_put(grp);
-
-	return 0;
-}
-
-static int
-lstcon_batch_find(const char *name, lstcon_batch_t **batpp)
-{
-	lstcon_batch_t *bat;
-
-	list_for_each_entry(bat, &console_session.ses_bat_list, bat_link) {
-		if (strncmp(bat->bat_name, name, LST_NAME_SIZE) == 0) {
-			*batpp = bat;
-			return 0;
-		}
-	}
-
-	return -ENOENT;
-}
-
-int
-lstcon_batch_add(char *name)
-{
-	lstcon_batch_t *bat;
-	int i;
-	int rc;
-
-	rc = (lstcon_batch_find(name, &bat) == 0)? -EEXIST: 0;
-	if (rc != 0) {
-		CDEBUG(D_NET, "Batch %s already exists\n", name);
-		return rc;
-	}
-
-	LIBCFS_ALLOC(bat, sizeof(lstcon_batch_t));
-	if (bat == NULL) {
-		CERROR("Can't allocate descriptor for batch %s\n", name);
-		return -ENOMEM;
-	}
-
-	LIBCFS_ALLOC(bat->bat_cli_hash,
-		     sizeof(struct list_head) * LST_NODE_HASHSIZE);
-	if (bat->bat_cli_hash == NULL) {
-		CERROR("Can't allocate hash for batch %s\n", name);
-		LIBCFS_FREE(bat, sizeof(lstcon_batch_t));
-
-		return -ENOMEM;
-	}
-
-	LIBCFS_ALLOC(bat->bat_srv_hash,
-		     sizeof(struct list_head) * LST_NODE_HASHSIZE);
-	if (bat->bat_srv_hash == NULL) {
-		CERROR("Can't allocate hash for batch %s\n", name);
-		LIBCFS_FREE(bat->bat_cli_hash, LST_NODE_HASHSIZE);
-		LIBCFS_FREE(bat, sizeof(lstcon_batch_t));
-
-		return -ENOMEM;
-	}
-
-	strcpy(bat->bat_name, name);
-	bat->bat_hdr.tsb_index = 0;
-	bat->bat_hdr.tsb_id.bat_id = ++console_session.ses_id_cookie;
-
-	bat->bat_ntest = 0;
-	bat->bat_state = LST_BATCH_IDLE;
-
-	INIT_LIST_HEAD(&bat->bat_cli_list);
-	INIT_LIST_HEAD(&bat->bat_srv_list);
-	INIT_LIST_HEAD(&bat->bat_test_list);
-	INIT_LIST_HEAD(&bat->bat_trans_list);
-
-	for (i = 0; i < LST_NODE_HASHSIZE; i++) {
-		INIT_LIST_HEAD(&bat->bat_cli_hash[i]);
-		INIT_LIST_HEAD(&bat->bat_srv_hash[i]);
-	}
-
-	list_add_tail(&bat->bat_link, &console_session.ses_bat_list);
-
-	return rc;
-}
-
-int
-lstcon_batch_list(int index, int len, char *name_up)
-{
-	lstcon_batch_t *bat;
-
-	LASSERT(name_up != NULL);
-	LASSERT(index >= 0);
-
-	list_for_each_entry(bat, &console_session.ses_bat_list, bat_link) {
-		if (index-- == 0) {
-			return copy_to_user(name_up, bat->bat_name, len) ?
-			       -EFAULT: 0;
-		}
-	}
-
-	return -ENOENT;
-}
-
-int
-lstcon_batch_info(char *name, lstcon_test_batch_ent_t *ent_up, int server,
-		  int testidx, int *index_p, int *ndent_p,
-		  lstcon_node_ent_t *dents_up)
-{
-	lstcon_test_batch_ent_t *entp;
-	struct list_head *clilst;
-	struct list_head *srvlst;
-	lstcon_test_t *test = NULL;
-	lstcon_batch_t *bat;
-	lstcon_ndlink_t *ndl;
-	int rc;
-
-	rc = lstcon_batch_find(name, &bat);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find batch %s\n", name);
-		return -ENOENT;
-	}
-
-	if (testidx > 0) {
-		/* query test, test index start from 1 */
-		list_for_each_entry(test, &bat->bat_test_list, tes_link) {
-			if (testidx-- == 1)
-				break;
-		}
-
-		if (testidx > 0) {
-			CDEBUG(D_NET, "Can't find specified test in batch\n");
-			return -ENOENT;
-		}
-	}
-
-	clilst = (test == NULL) ? &bat->bat_cli_list :
-				  &test->tes_src_grp->grp_ndl_list;
-	srvlst = (test == NULL) ? &bat->bat_srv_list :
-				  &test->tes_dst_grp->grp_ndl_list;
-
-	if (dents_up != NULL) {
-		rc = lstcon_nodes_getent((server ? srvlst: clilst),
-					 index_p, ndent_p, dents_up);
-		return rc;
-	}
-
-	/* non-verbose query */
-	LIBCFS_ALLOC(entp, sizeof(lstcon_test_batch_ent_t));
-	if (entp == NULL)
-		return -ENOMEM;
-
-	if (test == NULL) {
-		entp->u.tbe_batch.bae_ntest = bat->bat_ntest;
-		entp->u.tbe_batch.bae_state = bat->bat_state;
-
-	} else {
-
-		entp->u.tbe_test.tse_type   = test->tes_type;
-		entp->u.tbe_test.tse_loop   = test->tes_loop;
-		entp->u.tbe_test.tse_concur = test->tes_concur;
-	}
-
-	list_for_each_entry(ndl, clilst, ndl_link)
-		LST_NODE_STATE_COUNTER(ndl->ndl_node, &entp->tbe_cli_nle);
-
-	list_for_each_entry(ndl, srvlst, ndl_link)
-		LST_NODE_STATE_COUNTER(ndl->ndl_node, &entp->tbe_srv_nle);
-
-	rc = copy_to_user(ent_up, entp,
-			      sizeof(lstcon_test_batch_ent_t)) ? -EFAULT : 0;
-
-	LIBCFS_FREE(entp, sizeof(lstcon_test_batch_ent_t));
-
-	return rc;
-}
-
-static int
-lstcon_batrpc_condition(int transop, lstcon_node_t *nd, void *arg)
-{
-	switch (transop) {
-	case LST_TRANS_TSBRUN:
-		if (nd->nd_state != LST_NODE_ACTIVE)
-			return -ENETDOWN;
-		break;
-
-	case LST_TRANS_TSBSTOP:
-		if (nd->nd_state != LST_NODE_ACTIVE)
-			return 0;
-		break;
-
-	case LST_TRANS_TSBCLIQRY:
-	case LST_TRANS_TSBSRVQRY:
-		break;
-	}
-
-	return 1;
-}
-
-static int
-lstcon_batch_op(lstcon_batch_t *bat, int transop,
-		struct list_head *result_up)
-{
-	lstcon_rpc_trans_t *trans;
-	int rc;
-
-	rc = lstcon_rpc_trans_ndlist(&bat->bat_cli_list,
-				     &bat->bat_trans_list, transop,
-				     bat, lstcon_batrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		return rc;
-	}
-
-	lstcon_rpc_trans_postwait(trans, LST_TRANS_TIMEOUT);
-
-	rc = lstcon_rpc_trans_interpreter(trans, result_up, NULL);
-
-	lstcon_rpc_trans_destroy(trans);
-
-	return rc;
-}
-
-int
-lstcon_batch_run(char *name, int timeout, struct list_head *result_up)
-{
-	lstcon_batch_t *bat;
-	int rc;
-
-	if (lstcon_batch_find(name, &bat) != 0) {
-		CDEBUG(D_NET, "Can't find batch %s\n", name);
-		return -ENOENT;
-	}
-
-	bat->bat_arg = timeout;
-
-	rc = lstcon_batch_op(bat, LST_TRANS_TSBRUN, result_up);
-
-	/* mark batch as running if it's started in any node */
-	if (lstcon_tsbop_stat_success(lstcon_trans_stat(), 0) != 0)
-		bat->bat_state = LST_BATCH_RUNNING;
-
-	return rc;
-}
-
-int
-lstcon_batch_stop(char *name, int force, struct list_head *result_up)
-{
-	lstcon_batch_t *bat;
-	int rc;
-
-	if (lstcon_batch_find(name, &bat) != 0) {
-		CDEBUG(D_NET, "Can't find batch %s\n", name);
-		return -ENOENT;
-	}
-
-	bat->bat_arg = force;
-
-	rc = lstcon_batch_op(bat, LST_TRANS_TSBSTOP, result_up);
-
-	/* mark batch as stopped if all RPCs finished */
-	if (lstcon_tsbop_stat_failure(lstcon_trans_stat(), 0) == 0)
-		bat->bat_state = LST_BATCH_IDLE;
-
-	return rc;
-}
-
-static void
-lstcon_batch_destroy(lstcon_batch_t *bat)
-{
-	lstcon_ndlink_t *ndl;
-	lstcon_test_t *test;
-	int i;
-
-	list_del(&bat->bat_link);
-
-	while (!list_empty(&bat->bat_test_list)) {
-		test = list_entry(bat->bat_test_list.next,
-				      lstcon_test_t, tes_link);
-		LASSERT(list_empty(&test->tes_trans_list));
-
-		list_del(&test->tes_link);
-
-		lstcon_group_put(test->tes_src_grp);
-		lstcon_group_put(test->tes_dst_grp);
-
-		LIBCFS_FREE(test, offsetof(lstcon_test_t,
-					   tes_param[test->tes_paramlen]));
-	}
-
-	LASSERT(list_empty(&bat->bat_trans_list));
-
-	while (!list_empty(&bat->bat_cli_list)) {
-		ndl = list_entry(bat->bat_cli_list.next,
-				     lstcon_ndlink_t, ndl_link);
-		list_del_init(&ndl->ndl_link);
-
-		lstcon_ndlink_release(ndl);
-	}
-
-	while (!list_empty(&bat->bat_srv_list)) {
-		ndl = list_entry(bat->bat_srv_list.next,
-				     lstcon_ndlink_t, ndl_link);
-		list_del_init(&ndl->ndl_link);
-
-		lstcon_ndlink_release(ndl);
-	}
-
-	for (i = 0; i < LST_NODE_HASHSIZE; i++) {
-		LASSERT(list_empty(&bat->bat_cli_hash[i]));
-		LASSERT(list_empty(&bat->bat_srv_hash[i]));
-	}
-
-	LIBCFS_FREE(bat->bat_cli_hash,
-		    sizeof(struct list_head) * LST_NODE_HASHSIZE);
-	LIBCFS_FREE(bat->bat_srv_hash,
-		    sizeof(struct list_head) * LST_NODE_HASHSIZE);
-	LIBCFS_FREE(bat, sizeof(lstcon_batch_t));
-}
-
-static int
-lstcon_testrpc_condition(int transop, lstcon_node_t *nd, void *arg)
-{
-	lstcon_test_t *test;
-	lstcon_batch_t *batch;
-	lstcon_ndlink_t *ndl;
-	struct list_head *hash;
-	struct list_head *head;
-
-	test = (lstcon_test_t *)arg;
-	LASSERT(test != NULL);
-
-	batch = test->tes_batch;
-	LASSERT(batch != NULL);
-
-	if (test->tes_oneside &&
-	    transop == LST_TRANS_TSBSRVADD)
-		return 0;
-
-	if (nd->nd_state != LST_NODE_ACTIVE)
-		return -ENETDOWN;
-
-	if (transop == LST_TRANS_TSBCLIADD) {
-		hash = batch->bat_cli_hash;
-		head = &batch->bat_cli_list;
-
-	} else {
-		LASSERT(transop == LST_TRANS_TSBSRVADD);
-
-		hash = batch->bat_srv_hash;
-		head = &batch->bat_srv_list;
-	}
-
-	LASSERT(nd->nd_id.nid != LNET_NID_ANY);
-
-	if (lstcon_ndlink_find(hash, nd->nd_id, &ndl, 1) != 0)
-		return -ENOMEM;
-
-	if (list_empty(&ndl->ndl_link))
-		list_add_tail(&ndl->ndl_link, head);
-
-	return 1;
-}
-
-static int
-lstcon_test_nodes_add(lstcon_test_t *test, struct list_head *result_up)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_group_t *grp;
-	int transop;
-	int rc;
-
-	LASSERT(test->tes_src_grp != NULL);
-	LASSERT(test->tes_dst_grp != NULL);
-
-	transop = LST_TRANS_TSBSRVADD;
-	grp  = test->tes_dst_grp;
-again:
-	rc = lstcon_rpc_trans_ndlist(&grp->grp_ndl_list,
-				     &test->tes_trans_list, transop,
-				     test, lstcon_testrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		return rc;
-	}
-
-	lstcon_rpc_trans_postwait(trans, LST_TRANS_TIMEOUT);
-
-	if (lstcon_trans_stat()->trs_rpc_errno != 0 ||
-	    lstcon_trans_stat()->trs_fwk_errno != 0) {
-		lstcon_rpc_trans_interpreter(trans, result_up, NULL);
-
-		lstcon_rpc_trans_destroy(trans);
-		/* return if any error */
-		CDEBUG(D_NET, "Failed to add test %s, RPC error %d, framework error %d\n",
-		       transop == LST_TRANS_TSBCLIADD ? "client" : "server",
-		       lstcon_trans_stat()->trs_rpc_errno,
-		       lstcon_trans_stat()->trs_fwk_errno);
-
-		return rc;
-	}
-
-	lstcon_rpc_trans_destroy(trans);
-
-	if (transop == LST_TRANS_TSBCLIADD)
-		return rc;
-
-	transop = LST_TRANS_TSBCLIADD;
-	grp = test->tes_src_grp;
-	test->tes_cliidx = 0;
-
-	/* requests to test clients */
-	goto again;
-}
-
-static int
-lstcon_verify_batch(const char *name, lstcon_batch_t **batch)
-{
-	int rc;
-
-	rc = lstcon_batch_find(name, batch);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find batch %s\n", name);
-		return rc;
-	}
-
-	if ((*batch)->bat_state != LST_BATCH_IDLE) {
-		CDEBUG(D_NET, "Can't change running batch %s\n", name);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int
-lstcon_verify_group(const char *name, lstcon_group_t **grp)
-{
-	int rc;
-	lstcon_ndlink_t *ndl;
-
-	rc = lstcon_group_find(name, grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "can't find group %s\n", name);
-		return rc;
-	}
-
-	list_for_each_entry(ndl, &(*grp)->grp_ndl_list, ndl_link) {
-		if (ndl->ndl_node->nd_state == LST_NODE_ACTIVE)
-			return 0;
-	}
-
-	CDEBUG(D_NET, "Group %s has no ACTIVE nodes\n", name);
-
-	return -EINVAL;
-}
-
-int
-lstcon_test_add(char *batch_name, int type, int loop,
-		int concur, int dist, int span,
-		char *src_name, char *dst_name,
-		void *param, int paramlen, int *retp,
-		struct list_head *result_up)
-{
-	lstcon_test_t	 *test	 = NULL;
-	int		 rc;
-	lstcon_group_t	 *src_grp = NULL;
-	lstcon_group_t	 *dst_grp = NULL;
-	lstcon_batch_t	 *batch = NULL;
-
-	/*
-	 * verify that a batch of the given name exists, and the groups
-	 * that will be part of the batch exist and have at least one
-	 * active node
-	 */
-	rc = lstcon_verify_batch(batch_name, &batch);
-	if (rc != 0)
-		goto out;
-
-	rc = lstcon_verify_group(src_name, &src_grp);
-	if (rc != 0)
-		goto out;
-
-	rc = lstcon_verify_group(dst_name, &dst_grp);
-	if (rc != 0)
-		goto out;
-
-	if (dst_grp->grp_userland)
-		*retp = 1;
-
-	LIBCFS_ALLOC(test, offsetof(lstcon_test_t, tes_param[paramlen]));
-	if (!test) {
-		CERROR("Can't allocate test descriptor\n");
-		rc = -ENOMEM;
-
-		goto out;
-	}
-
-	test->tes_hdr.tsb_id	= batch->bat_hdr.tsb_id;
-	test->tes_batch		= batch;
-	test->tes_type		= type;
-	test->tes_oneside	= 0; /* TODO */
-	test->tes_loop		= loop;
-	test->tes_concur	= concur;
-	test->tes_stop_onerr	= 1; /* TODO */
-	test->tes_span		= span;
-	test->tes_dist		= dist;
-	test->tes_cliidx	= 0; /* just used for creating RPC */
-	test->tes_src_grp	= src_grp;
-	test->tes_dst_grp	= dst_grp;
-	INIT_LIST_HEAD(&test->tes_trans_list);
-
-	if (param != NULL) {
-		test->tes_paramlen = paramlen;
-		memcpy(&test->tes_param[0], param, paramlen);
-	}
-
-	rc = lstcon_test_nodes_add(test, result_up);
-
-	if (rc != 0)
-		goto out;
-
-	if (lstcon_trans_stat()->trs_rpc_errno != 0 ||
-	    lstcon_trans_stat()->trs_fwk_errno != 0)
-		CDEBUG(D_NET, "Failed to add test %d to batch %s\n", type,
-		       batch_name);
-
-	/* add to test list anyway, so user can check what's going on */
-	list_add_tail(&test->tes_link, &batch->bat_test_list);
-
-	batch->bat_ntest++;
-	test->tes_hdr.tsb_index = batch->bat_ntest;
-
-	/*  hold groups so nobody can change them */
-	return rc;
-out:
-	if (test != NULL)
-		LIBCFS_FREE(test, offsetof(lstcon_test_t, tes_param[paramlen]));
-
-	if (dst_grp != NULL)
-		lstcon_group_put(dst_grp);
-
-	if (src_grp != NULL)
-		lstcon_group_put(src_grp);
-
-	return rc;
-}
-
-static int
-lstcon_test_find(lstcon_batch_t *batch, int idx, lstcon_test_t **testpp)
-{
-	lstcon_test_t *test;
-
-	list_for_each_entry(test, &batch->bat_test_list, tes_link) {
-		if (idx == test->tes_hdr.tsb_index) {
-			*testpp = test;
-			return 0;
-		}
-	}
-
-	return -ENOENT;
-}
-
-static int
-lstcon_tsbrpc_readent(int transop, srpc_msg_t *msg,
-		      lstcon_rpc_ent_t *ent_up)
-{
-	srpc_batch_reply_t *rep = &msg->msg_body.bat_reply;
-
-	LASSERT(transop == LST_TRANS_TSBCLIQRY ||
-		 transop == LST_TRANS_TSBSRVQRY);
-
-	/* positive errno, framework error code */
-	if (copy_to_user(&ent_up->rpe_priv[0],
-			     &rep->bar_active, sizeof(rep->bar_active)))
-		return -EFAULT;
-
-	return 0;
-}
-
-int
-lstcon_test_batch_query(char *name, int testidx, int client,
-			int timeout, struct list_head *result_up)
-{
-	lstcon_rpc_trans_t *trans;
-	struct list_head *translist;
-	struct list_head *ndlist;
-	lstcon_tsb_hdr_t *hdr;
-	lstcon_batch_t *batch;
-	lstcon_test_t *test = NULL;
-	int transop;
-	int rc;
-
-	rc = lstcon_batch_find(name, &batch);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find batch: %s\n", name);
-		return rc;
-	}
-
-	if (testidx == 0) {
-		translist = &batch->bat_trans_list;
-		ndlist    = &batch->bat_cli_list;
-		hdr       = &batch->bat_hdr;
-
-	} else {
-		/* query specified test only */
-		rc = lstcon_test_find(batch, testidx, &test);
-		if (rc != 0) {
-			CDEBUG(D_NET, "Can't find test: %d\n", testidx);
-			return rc;
-		}
-
-		translist = &test->tes_trans_list;
-		ndlist    = &test->tes_src_grp->grp_ndl_list;
-		hdr       = &test->tes_hdr;
-	}
-
-	transop = client ? LST_TRANS_TSBCLIQRY : LST_TRANS_TSBSRVQRY;
-
-	rc = lstcon_rpc_trans_ndlist(ndlist, translist, transop, hdr,
-				     lstcon_batrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		return rc;
-	}
-
-	lstcon_rpc_trans_postwait(trans, timeout);
-
-	if (testidx == 0 && /* query a batch, not a test */
-	    lstcon_rpc_stat_failure(lstcon_trans_stat(), 0) == 0 &&
-	    lstcon_tsbqry_stat_run(lstcon_trans_stat(), 0) == 0) {
-		/* all RPCs finished, and no active test */
-		batch->bat_state = LST_BATCH_IDLE;
-	}
-
-	rc = lstcon_rpc_trans_interpreter(trans, result_up,
-					  lstcon_tsbrpc_readent);
-	lstcon_rpc_trans_destroy(trans);
-
-	return rc;
-}
-
-static int
-lstcon_statrpc_readent(int transop, srpc_msg_t *msg,
-		       lstcon_rpc_ent_t *ent_up)
-{
-	srpc_stat_reply_t *rep = &msg->msg_body.stat_reply;
-	sfw_counters_t *sfwk_stat;
-	srpc_counters_t *srpc_stat;
-	lnet_counters_t *lnet_stat;
-
-	if (rep->str_status != 0)
-		return 0;
-
-	sfwk_stat = (sfw_counters_t *)&ent_up->rpe_payload[0];
-	srpc_stat = (srpc_counters_t *)((char *)sfwk_stat + sizeof(*sfwk_stat));
-	lnet_stat = (lnet_counters_t *)((char *)srpc_stat + sizeof(*srpc_stat));
-
-	if (copy_to_user(sfwk_stat, &rep->str_fw, sizeof(*sfwk_stat)) ||
-	    copy_to_user(srpc_stat, &rep->str_rpc, sizeof(*srpc_stat)) ||
-	    copy_to_user(lnet_stat, &rep->str_lnet, sizeof(*lnet_stat)))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int
-lstcon_ndlist_stat(struct list_head *ndlist,
-		   int timeout, struct list_head *result_up)
-{
-	struct list_head head;
-	lstcon_rpc_trans_t *trans;
-	int rc;
-
-	INIT_LIST_HEAD(&head);
-
-	rc = lstcon_rpc_trans_ndlist(ndlist, &head,
-				     LST_TRANS_STATQRY, NULL, NULL, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		return rc;
-	}
-
-	lstcon_rpc_trans_postwait(trans, LST_VALIDATE_TIMEOUT(timeout));
-
-	rc = lstcon_rpc_trans_interpreter(trans, result_up,
-					  lstcon_statrpc_readent);
-	lstcon_rpc_trans_destroy(trans);
-
-	return rc;
-}
-
-int
-lstcon_group_stat(char *grp_name, int timeout, struct list_head *result_up)
-{
-	lstcon_group_t *grp;
-	int rc;
-
-	rc = lstcon_group_find(grp_name, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Can't find group %s\n", grp_name);
-		return rc;
-	}
-
-	rc = lstcon_ndlist_stat(&grp->grp_ndl_list, timeout, result_up);
-
-	lstcon_group_put(grp);
-
-	return rc;
-}
-
-int
-lstcon_nodes_stat(int count, lnet_process_id_t *ids_up,
-		  int timeout, struct list_head *result_up)
-{
-	lstcon_ndlink_t *ndl;
-	lstcon_group_t *tmp;
-	lnet_process_id_t id;
-	int i;
-	int rc;
-
-	rc = lstcon_group_alloc(NULL, &tmp);
-	if (rc != 0) {
-		CERROR("Out of memory\n");
-		return -ENOMEM;
-	}
-
-	for (i = 0 ; i < count; i++) {
-		if (copy_from_user(&id, &ids_up[i], sizeof(id))) {
-			rc = -EFAULT;
-			break;
-		}
-
-		/* add to tmp group */
-		rc = lstcon_group_ndlink_find(tmp, id, &ndl, 2);
-		if (rc != 0) {
-			CDEBUG((rc == -ENOMEM) ? D_ERROR : D_NET,
-			       "Failed to find or create %s: %d\n",
-			       libcfs_id2str(id), rc);
-			break;
-		}
-	}
-
-	if (rc != 0) {
-		lstcon_group_put(tmp);
-		return rc;
-	}
-
-	rc = lstcon_ndlist_stat(&tmp->grp_ndl_list, timeout, result_up);
-
-	lstcon_group_put(tmp);
-
-	return rc;
-}
-
-static int
-lstcon_debug_ndlist(struct list_head *ndlist,
-		    struct list_head *translist,
-		    int timeout, struct list_head *result_up)
-{
-	lstcon_rpc_trans_t *trans;
-	int		 rc;
-
-	rc = lstcon_rpc_trans_ndlist(ndlist, translist, LST_TRANS_SESQRY,
-				     NULL, lstcon_sesrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		return rc;
-	}
-
-	lstcon_rpc_trans_postwait(trans, LST_VALIDATE_TIMEOUT(timeout));
-
-	rc = lstcon_rpc_trans_interpreter(trans, result_up,
-					  lstcon_sesrpc_readent);
-	lstcon_rpc_trans_destroy(trans);
-
-	return rc;
-}
-
-int
-lstcon_session_debug(int timeout, struct list_head *result_up)
-{
-	return lstcon_debug_ndlist(&console_session.ses_ndl_list,
-				   NULL, timeout, result_up);
-}
-
-int
-lstcon_batch_debug(int timeout, char *name,
-		   int client, struct list_head *result_up)
-{
-	lstcon_batch_t *bat;
-	int rc;
-
-	rc = lstcon_batch_find(name, &bat);
-	if (rc != 0)
-		return -ENOENT;
-
-	rc = lstcon_debug_ndlist(client ? &bat->bat_cli_list :
-					  &bat->bat_srv_list,
-				 NULL, timeout, result_up);
-
-	return rc;
-}
-
-int
-lstcon_group_debug(int timeout, char *name,
-		   struct list_head *result_up)
-{
-	lstcon_group_t *grp;
-	int rc;
-
-	rc = lstcon_group_find(name, &grp);
-	if (rc != 0)
-		return -ENOENT;
-
-	rc = lstcon_debug_ndlist(&grp->grp_ndl_list, NULL,
-				 timeout, result_up);
-	lstcon_group_put(grp);
-
-	return rc;
-}
-
-int
-lstcon_nodes_debug(int timeout,
-		   int count, lnet_process_id_t *ids_up,
-		   struct list_head *result_up)
-{
-	lnet_process_id_t id;
-	lstcon_ndlink_t *ndl;
-	lstcon_group_t *grp;
-	int i;
-	int rc;
-
-	rc = lstcon_group_alloc(NULL, &grp);
-	if (rc != 0) {
-		CDEBUG(D_NET, "Out of memory\n");
-		return rc;
-	}
-
-	for (i = 0; i < count; i++) {
-		if (copy_from_user(&id, &ids_up[i], sizeof(id))) {
-			rc = -EFAULT;
-			break;
-		}
-
-		/* node is added to tmp group */
-		rc = lstcon_group_ndlink_find(grp, id, &ndl, 1);
-		if (rc != 0) {
-			CERROR("Can't create node link\n");
-			break;
-		}
-	}
-
-	if (rc != 0) {
-		lstcon_group_put(grp);
-		return rc;
-	}
-
-	rc = lstcon_debug_ndlist(&grp->grp_ndl_list, NULL,
-				 timeout, result_up);
-
-	lstcon_group_put(grp);
-
-	return rc;
-}
-
-int
-lstcon_session_match(lst_sid_t sid)
-{
-	return (console_session.ses_id.ses_nid   == sid.ses_nid &&
-		console_session.ses_id.ses_stamp == sid.ses_stamp) ?  1: 0;
-}
-
-static void
-lstcon_new_session_id(lst_sid_t *sid)
-{
-	lnet_process_id_t id;
-
-	LASSERT(console_session.ses_state == LST_SESSION_NONE);
-
-	LNetGetId(1, &id);
-	sid->ses_nid   = id.nid;
-	sid->ses_stamp = cfs_time_current();
-}
-
-extern srpc_service_t lstcon_acceptor_service;
-
-int
-lstcon_session_new(char *name, int key, unsigned feats,
-		   int timeout, int force, lst_sid_t *sid_up)
-{
-	int rc = 0;
-	int i;
-
-	if (console_session.ses_state != LST_SESSION_NONE) {
-		/* session exists */
-		if (!force) {
-			CNETERR("Session %s already exists\n",
-				console_session.ses_name);
-			return -EEXIST;
-		}
-
-		rc = lstcon_session_end();
-
-		/* lstcon_session_end() only return local error */
-		if  (rc != 0)
-			return rc;
-	}
-
-	if ((feats & ~LST_FEATS_MASK) != 0) {
-		CNETERR("Unknown session features %x\n",
-			(feats & ~LST_FEATS_MASK));
-		return -EINVAL;
-	}
-
-	for (i = 0; i < LST_GLOBAL_HASHSIZE; i++)
-		LASSERT(list_empty(&console_session.ses_ndl_hash[i]));
-
-	lstcon_new_session_id(&console_session.ses_id);
-
-	console_session.ses_key = key;
-	console_session.ses_state = LST_SESSION_ACTIVE;
-	console_session.ses_force = !!force;
-	console_session.ses_features = feats;
-	console_session.ses_feats_updated = 0;
-	console_session.ses_timeout = (timeout <= 0) ?
-				      LST_CONSOLE_TIMEOUT : timeout;
-	strcpy(console_session.ses_name, name);
-
-	rc = lstcon_batch_add(LST_DEFAULT_BATCH);
-	if (rc != 0)
-		return rc;
-
-	rc = lstcon_rpc_pinger_start();
-	if (rc != 0) {
-		lstcon_batch_t *bat = NULL;
-
-		lstcon_batch_find(LST_DEFAULT_BATCH, &bat);
-		lstcon_batch_destroy(bat);
-
-		return rc;
-	}
-
-	if (copy_to_user(sid_up, &console_session.ses_id,
-			     sizeof(lst_sid_t)) == 0)
-		return rc;
-
-	lstcon_session_end();
-
-	return -EFAULT;
-}
-
-int
-lstcon_session_info(lst_sid_t *sid_up, int *key_up, unsigned *featp,
-		    lstcon_ndlist_ent_t *ndinfo_up, char *name_up, int len)
-{
-	lstcon_ndlist_ent_t *entp;
-	lstcon_ndlink_t *ndl;
-	int rc = 0;
-
-	if (console_session.ses_state != LST_SESSION_ACTIVE)
-		return -ESRCH;
-
-	LIBCFS_ALLOC(entp, sizeof(*entp));
-	if (entp == NULL)
-		return -ENOMEM;
-
-	list_for_each_entry(ndl, &console_session.ses_ndl_list, ndl_link)
-		LST_NODE_STATE_COUNTER(ndl->ndl_node, entp);
-
-	if (copy_to_user(sid_up, &console_session.ses_id,
-			     sizeof(lst_sid_t)) ||
-	    copy_to_user(key_up, &console_session.ses_key,
-			     sizeof(*key_up)) ||
-	    copy_to_user(featp, &console_session.ses_features,
-			     sizeof(*featp)) ||
-	    copy_to_user(ndinfo_up, entp, sizeof(*entp)) ||
-	    copy_to_user(name_up, console_session.ses_name, len))
-		rc = -EFAULT;
-
-	LIBCFS_FREE(entp, sizeof(*entp));
-
-	return rc;
-}
-
-int
-lstcon_session_end(void)
-{
-	lstcon_rpc_trans_t *trans;
-	lstcon_group_t *grp;
-	lstcon_batch_t *bat;
-	int rc = 0;
-
-	LASSERT(console_session.ses_state == LST_SESSION_ACTIVE);
-
-	rc = lstcon_rpc_trans_ndlist(&console_session.ses_ndl_list,
-				     NULL, LST_TRANS_SESEND, NULL,
-				     lstcon_sesrpc_condition, &trans);
-	if (rc != 0) {
-		CERROR("Can't create transaction: %d\n", rc);
-		return rc;
-	}
-
-	console_session.ses_shutdown = 1;
-
-	lstcon_rpc_pinger_stop();
-
-	lstcon_rpc_trans_postwait(trans, LST_TRANS_TIMEOUT);
-
-	lstcon_rpc_trans_destroy(trans);
-	/* User can do nothing even rpc failed, so go on */
-
-	/* waiting for orphan rpcs to die */
-	lstcon_rpc_cleanup_wait();
-
-	console_session.ses_id    = LST_INVALID_SID;
-	console_session.ses_state = LST_SESSION_NONE;
-	console_session.ses_key   = 0;
-	console_session.ses_force = 0;
-	console_session.ses_feats_updated = 0;
-
-	/* destroy all batches */
-	while (!list_empty(&console_session.ses_bat_list)) {
-		bat = list_entry(console_session.ses_bat_list.next,
-				     lstcon_batch_t, bat_link);
-
-		lstcon_batch_destroy(bat);
-	}
-
-	/* destroy all groups */
-	while (!list_empty(&console_session.ses_grp_list)) {
-		grp = list_entry(console_session.ses_grp_list.next,
-				     lstcon_group_t, grp_link);
-		LASSERT(grp->grp_ref == 1);
-
-		lstcon_group_put(grp);
-	}
-
-	/* all nodes should be released */
-	LASSERT(list_empty(&console_session.ses_ndl_list));
-
-	console_session.ses_shutdown = 0;
-	console_session.ses_expired  = 0;
-
-	return rc;
-}
-
-int
-lstcon_session_feats_check(unsigned feats)
-{
-	int rc = 0;
-
-	if ((feats & ~LST_FEATS_MASK) != 0) {
-		CERROR("Can't support these features: %x\n",
-		       (feats & ~LST_FEATS_MASK));
-		return -EPROTO;
-	}
-
-	spin_lock(&console_session.ses_rpc_lock);
-
-	if (!console_session.ses_feats_updated) {
-		console_session.ses_feats_updated = 1;
-		console_session.ses_features = feats;
-	}
-
-	if (console_session.ses_features != feats)
-		rc = -EPROTO;
-
-	spin_unlock(&console_session.ses_rpc_lock);
-
-	if (rc != 0) {
-		CERROR("remote features %x do not match with session features %x of console\n",
-		       feats, console_session.ses_features);
-	}
-
-	return rc;
-}
-
-static int
-lstcon_acceptor_handle(srpc_server_rpc_t *rpc)
-{
-	srpc_msg_t *rep  = &rpc->srpc_replymsg;
-	srpc_msg_t *req  = &rpc->srpc_reqstbuf->buf_msg;
-	srpc_join_reqst_t *jreq = &req->msg_body.join_reqst;
-	srpc_join_reply_t *jrep = &rep->msg_body.join_reply;
-	lstcon_group_t *grp  = NULL;
-	lstcon_ndlink_t *ndl;
-	int rc   = 0;
-
-	sfw_unpack_message(req);
-
-	mutex_lock(&console_session.ses_mutex);
-
-	jrep->join_sid = console_session.ses_id;
-
-	if (console_session.ses_id.ses_nid == LNET_NID_ANY) {
-		jrep->join_status = ESRCH;
-		goto out;
-	}
-
-	if (lstcon_session_feats_check(req->msg_ses_feats) != 0) {
-		jrep->join_status = EPROTO;
-		goto out;
-	}
-
-	if (jreq->join_sid.ses_nid != LNET_NID_ANY &&
-	     !lstcon_session_match(jreq->join_sid)) {
-		jrep->join_status = EBUSY;
-		goto out;
-	}
-
-	if (lstcon_group_find(jreq->join_group, &grp) != 0) {
-		rc = lstcon_group_alloc(jreq->join_group, &grp);
-		if (rc != 0) {
-			CERROR("Out of memory\n");
-			goto out;
-		}
-
-		list_add_tail(&grp->grp_link,
-				  &console_session.ses_grp_list);
-		lstcon_group_addref(grp);
-	}
-
-	if (grp->grp_ref > 2) {
-		/* Group in using */
-		jrep->join_status = EBUSY;
-		goto out;
-	}
-
-	rc = lstcon_group_ndlink_find(grp, rpc->srpc_peer, &ndl, 0);
-	if (rc == 0) {
-		jrep->join_status = EEXIST;
-		goto out;
-	}
-
-	rc = lstcon_group_ndlink_find(grp, rpc->srpc_peer, &ndl, 1);
-	if (rc != 0) {
-		CERROR("Out of memory\n");
-		goto out;
-	}
-
-	ndl->ndl_node->nd_state   = LST_NODE_ACTIVE;
-	ndl->ndl_node->nd_timeout = console_session.ses_timeout;
-
-	if (grp->grp_userland == 0)
-		grp->grp_userland = 1;
-
-	strcpy(jrep->join_session, console_session.ses_name);
-	jrep->join_timeout = console_session.ses_timeout;
-	jrep->join_status  = 0;
-
-out:
-	rep->msg_ses_feats = console_session.ses_features;
-	if (grp != NULL)
-		lstcon_group_put(grp);
-
-	mutex_unlock(&console_session.ses_mutex);
-
-	return rc;
-}
-
-srpc_service_t lstcon_acceptor_service;
-static void lstcon_init_acceptor_service(void)
-{
-	/* initialize selftest console acceptor service table */
-	lstcon_acceptor_service.sv_name     = "join session";
-	lstcon_acceptor_service.sv_handler  = lstcon_acceptor_handle;
-	lstcon_acceptor_service.sv_id       = SRPC_SERVICE_JOIN;
-	lstcon_acceptor_service.sv_wi_total = SFW_FRWK_WI_MAX;
-}
-
-extern int lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data);
-
-static DECLARE_IOCTL_HANDLER(lstcon_ioctl_handler, lstcon_ioctl_entry);
-
-/* initialize console */
-int
-lstcon_console_init(void)
-{
-	int i;
-	int rc;
-
-	memset(&console_session, 0, sizeof(lstcon_session_t));
-
-	console_session.ses_id		  = LST_INVALID_SID;
-	console_session.ses_state	  = LST_SESSION_NONE;
-	console_session.ses_timeout	  = 0;
-	console_session.ses_force	  = 0;
-	console_session.ses_expired	  = 0;
-	console_session.ses_feats_updated = 0;
-	console_session.ses_features	  = LST_FEATS_MASK;
-	console_session.ses_laststamp	  = get_seconds();
-
-	mutex_init(&console_session.ses_mutex);
-
-	INIT_LIST_HEAD(&console_session.ses_ndl_list);
-	INIT_LIST_HEAD(&console_session.ses_grp_list);
-	INIT_LIST_HEAD(&console_session.ses_bat_list);
-	INIT_LIST_HEAD(&console_session.ses_trans_list);
-
-	LIBCFS_ALLOC(console_session.ses_ndl_hash,
-		     sizeof(struct list_head) * LST_GLOBAL_HASHSIZE);
-	if (console_session.ses_ndl_hash == NULL)
-		return -ENOMEM;
-
-	for (i = 0; i < LST_GLOBAL_HASHSIZE; i++)
-		INIT_LIST_HEAD(&console_session.ses_ndl_hash[i]);
-
-
-	/* initialize acceptor service table */
-	lstcon_init_acceptor_service();
-
-	rc = srpc_add_service(&lstcon_acceptor_service);
-	LASSERT(rc != -EBUSY);
-	if (rc != 0) {
-		LIBCFS_FREE(console_session.ses_ndl_hash,
-			    sizeof(struct list_head) * LST_GLOBAL_HASHSIZE);
-		return rc;
-	}
-
-	rc = srpc_service_add_buffers(&lstcon_acceptor_service,
-				      lstcon_acceptor_service.sv_wi_total);
-	if (rc != 0) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = libcfs_register_ioctl(&lstcon_ioctl_handler);
-
-	if (rc == 0) {
-		lstcon_rpc_module_init();
-		return 0;
-	}
-
-out:
-	srpc_shutdown_service(&lstcon_acceptor_service);
-	srpc_remove_service(&lstcon_acceptor_service);
-
-	LIBCFS_FREE(console_session.ses_ndl_hash,
-		    sizeof(struct list_head) * LST_GLOBAL_HASHSIZE);
-
-	srpc_wait_service_shutdown(&lstcon_acceptor_service);
-
-	return rc;
-}
-
-int
-lstcon_console_fini(void)
-{
-	int i;
-
-	libcfs_deregister_ioctl(&lstcon_ioctl_handler);
-
-	mutex_lock(&console_session.ses_mutex);
-
-	srpc_shutdown_service(&lstcon_acceptor_service);
-	srpc_remove_service(&lstcon_acceptor_service);
-
-	if (console_session.ses_state != LST_SESSION_NONE)
-		lstcon_session_end();
-
-	lstcon_rpc_module_fini();
-
-	mutex_unlock(&console_session.ses_mutex);
-
-	LASSERT(list_empty(&console_session.ses_ndl_list));
-	LASSERT(list_empty(&console_session.ses_grp_list));
-	LASSERT(list_empty(&console_session.ses_bat_list));
-	LASSERT(list_empty(&console_session.ses_trans_list));
-
-	for (i = 0; i < LST_NODE_HASHSIZE; i++) {
-		LASSERT(list_empty(&console_session.ses_ndl_hash[i]));
-	}
-
-	LIBCFS_FREE(console_session.ses_ndl_hash,
-		    sizeof(struct list_head) * LST_GLOBAL_HASHSIZE);
-
-	srpc_wait_service_shutdown(&lstcon_acceptor_service);
-
-	return 0;
-}
diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h
deleted file mode 100644
index cdce2dd6be7c..000000000000
--- a/drivers/staging/lustre/lnet/selftest/console.h
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/console.h
- *
- * kernel structure for LST console
- *
- * Author: Liang Zhen <liangzhen@clusterfs.com>
- */
-
-#ifndef __LST_CONSOLE_H__
-#define __LST_CONSOLE_H__
-
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lnet.h"
-#include "../../include/linux/lnet/lib-types.h"
-#include "../../include/linux/lnet/lnetst.h"
-#include "selftest.h"
-#include "conrpc.h"
-
-typedef struct lstcon_node {
-	lnet_process_id_t nd_id;      /* id of the node */
-	int               nd_ref;     /* reference count */
-	int               nd_state;   /* state of the node */
-	int               nd_timeout; /* session timeout */
-	unsigned long     nd_stamp;   /* timestamp of last replied RPC */
-	struct lstcon_rpc nd_ping;    /* ping rpc */
-} lstcon_node_t; /* node descriptor */
-
-typedef struct {
-	struct list_head ndl_link;    /* chain on list */
-	struct list_head ndl_hlink;   /* chain on hash */
-	lstcon_node_t    *ndl_node;   /* pointer to node */
-} lstcon_ndlink_t; /* node link descriptor */
-
-typedef struct {
-	struct list_head grp_link;                /* chain on global group list
-						   */
-	int              grp_ref;                 /* reference count */
-	int              grp_userland;            /* has userland nodes */
-	int              grp_nnode;               /* # of nodes */
-	char             grp_name[LST_NAME_SIZE]; /* group name */
-
-	struct list_head grp_trans_list;          /* transaction list */
-	struct list_head grp_ndl_list;            /* nodes list */
-	struct list_head grp_ndl_hash[0];         /* hash table for nodes */
-} lstcon_group_t; /* (alias of nodes) group descriptor */
-
-#define LST_BATCH_IDLE    0xB0	    /* idle batch */
-#define LST_BATCH_RUNNING 0xB1	    /* running batch */
-
-typedef struct lstcon_tsb_hdr {
-	lst_bid_t        tsb_id;	 /* batch ID */
-	int              tsb_index;      /* test index */
-} lstcon_tsb_hdr_t;
-
-typedef struct {
-	lstcon_tsb_hdr_t bat_hdr;         /* test_batch header */
-	struct list_head bat_link;        /* chain on session's batches list */
-	int              bat_ntest;       /* # of test */
-	int              bat_state;       /* state of the batch */
-	int              bat_arg;         /* parameter for run|stop, timeout
-					   * for run, force for stop */
-	char             bat_name[LST_NAME_SIZE];/* name of batch */
-
-	struct list_head bat_test_list;   /* list head of tests (lstcon_test_t)
-					   */
-	struct list_head bat_trans_list;  /* list head of transaction */
-	struct list_head bat_cli_list;    /* list head of client nodes
-					   * (lstcon_node_t) */
-	struct list_head *bat_cli_hash;   /* hash table of client nodes */
-	struct list_head bat_srv_list;    /* list head of server nodes */
-	struct list_head *bat_srv_hash;   /* hash table of server nodes */
-} lstcon_batch_t; /* (tests ) batch descriptor */
-
-typedef struct lstcon_test {
-	lstcon_tsb_hdr_t tes_hdr;        /* test batch header */
-	struct list_head tes_link;       /* chain on batch's tests list */
-	lstcon_batch_t   *tes_batch;     /* pointer to batch */
-
-	int              tes_type;       /* type of the test, i.e: bulk, ping */
-	int              tes_stop_onerr; /* stop on error */
-	int              tes_oneside;    /* one-sided test */
-	int              tes_concur;     /* concurrency */
-	int              tes_loop;       /* loop count */
-	int              tes_dist;       /* nodes distribution of target group */
-	int              tes_span;       /* nodes span of target group */
-	int              tes_cliidx;     /* client index, used for RPC creating */
-
-	struct list_head tes_trans_list; /* transaction list */
-	lstcon_group_t   *tes_src_grp;   /* group run the test */
-	lstcon_group_t   *tes_dst_grp;   /* target group */
-
-	int              tes_paramlen;   /* test parameter length */
-	char             tes_param[0];   /* test parameter */
-} lstcon_test_t; /* a single test descriptor */
-
-#define LST_GLOBAL_HASHSIZE 503	     /* global nodes hash table size */
-#define LST_NODE_HASHSIZE   239	     /* node hash table (for batch or group) */
-
-#define LST_SESSION_NONE    0x0	     /* no session */
-#define LST_SESSION_ACTIVE  0x1	     /* working session */
-
-#define LST_CONSOLE_TIMEOUT 300	     /* default console timeout */
-
-typedef struct {
-	struct mutex        ses_mutex;        /* only 1 thread in session */
-	lst_sid_t           ses_id;           /* global session id */
-	int                 ses_key;          /* local session key */
-	int                 ses_state;        /* state of session */
-	int                 ses_timeout;      /* timeout in seconds */
-	time_t              ses_laststamp;    /* last operation stamp (seconds)
-					       */
-	unsigned            ses_features;     /* tests features of the session
-					       */
-	unsigned            ses_feats_updated:1; /* features are synced with
-						  * remote test nodes */
-	unsigned            ses_force:1;      /* force creating */
-	unsigned            ses_shutdown:1;   /* session is shutting down */
-	unsigned            ses_expired:1;    /* console is timedout */
-	__u64               ses_id_cookie;    /* batch id cookie */
-	char                ses_name[LST_NAME_SIZE];/* session name */
-	lstcon_rpc_trans_t  *ses_ping;        /* session pinger */
-	stt_timer_t         ses_ping_timer;   /* timer for pinger */
-	lstcon_trans_stat_t ses_trans_stat;   /* transaction stats */
-
-	struct list_head    ses_trans_list;   /* global list of transaction */
-	struct list_head    ses_grp_list;     /* global list of groups */
-	struct list_head    ses_bat_list;     /* global list of batches */
-	struct list_head    ses_ndl_list;     /* global list of nodes */
-	struct list_head    *ses_ndl_hash;    /* hash table of nodes */
-
-	spinlock_t          ses_rpc_lock;     /* serialize */
-	atomic_t            ses_rpc_counter;  /* # of initialized RPCs */
-	struct list_head    ses_rpc_freelist; /* idle console rpc */
-} lstcon_session_t; /* session descriptor */
-
-extern lstcon_session_t	 console_session;
-
-static inline lstcon_trans_stat_t *
-lstcon_trans_stat(void)
-{
-	return &console_session.ses_trans_stat;
-}
-
-static inline struct list_head *
-lstcon_id2hash (lnet_process_id_t id, struct list_head *hash)
-{
-	unsigned int idx = LNET_NIDADDR(id.nid) % LST_NODE_HASHSIZE;
-
-	return &hash[idx];
-}
-
-int lstcon_console_init(void);
-int lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data);
-int lstcon_console_fini(void);
-int lstcon_session_match(lst_sid_t sid);
-int lstcon_session_new(char *name, int key, unsigned version,
-		       int timeout, int flags, lst_sid_t *sid_up);
-int lstcon_session_info(lst_sid_t *sid_up, int *key, unsigned *verp,
-			lstcon_ndlist_ent_t *entp, char *name_up, int len);
-int lstcon_session_end(void);
-int lstcon_session_debug(int timeout, struct list_head *result_up);
-int lstcon_session_feats_check(unsigned feats);
-int lstcon_batch_debug(int timeout, char *name,
-		       int client, struct list_head *result_up);
-int lstcon_group_debug(int timeout, char *name,
-		       struct list_head *result_up);
-int lstcon_nodes_debug(int timeout, int nnd, lnet_process_id_t *nds_up,
-		       struct list_head *result_up);
-int lstcon_group_add(char *name);
-int lstcon_group_del(char *name);
-int lstcon_group_clean(char *name, int args);
-int lstcon_group_refresh(char *name, struct list_head *result_up);
-int lstcon_nodes_add(char *name, int nnd, lnet_process_id_t *nds_up,
-		     unsigned *featp, struct list_head *result_up);
-int lstcon_nodes_remove(char *name, int nnd, lnet_process_id_t *nds_up,
-			struct list_head *result_up);
-int lstcon_group_info(char *name, lstcon_ndlist_ent_t *gent_up,
-		      int *index_p, int *ndent_p, lstcon_node_ent_t *ndents_up);
-int lstcon_group_list(int idx, int len, char *name_up);
-int lstcon_batch_add(char *name);
-int lstcon_batch_run(char *name, int timeout, struct list_head *result_up);
-int lstcon_batch_stop(char *name, int force, struct list_head *result_up);
-int lstcon_test_batch_query(char *name, int testidx,
-			    int client, int timeout,
-			    struct list_head *result_up);
-int lstcon_batch_del(char *name);
-int lstcon_batch_list(int idx, int namelen, char *name_up);
-int lstcon_batch_info(char *name, lstcon_test_batch_ent_t *ent_up,
-		      int server, int testidx, int *index_p,
-		      int *ndent_p, lstcon_node_ent_t *dents_up);
-int lstcon_group_stat(char *grp_name, int timeout,
-		      struct list_head *result_up);
-int lstcon_nodes_stat(int count, lnet_process_id_t *ids_up,
-		      int timeout, struct list_head *result_up);
-int lstcon_test_add(char *batch_name, int type, int loop,
-		    int concur, int dist, int span,
-		    char *src_name, char *dst_name,
-		    void *param, int paramlen, int *retp,
-		    struct list_head *result_up);
-#endif
diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
deleted file mode 100644
index 257de3537671..000000000000
--- a/drivers/staging/lustre/lnet/selftest/framework.c
+++ /dev/null
@@ -1,1808 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/framework.c
- *
- * Author: Isaac Huang <isaac@clusterfs.com>
- * Author: Liang Zhen  <liangzhen@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "selftest.h"
-
-lst_sid_t LST_INVALID_SID = {LNET_NID_ANY, -1};
-
-static int session_timeout = 100;
-module_param(session_timeout, int, 0444);
-MODULE_PARM_DESC(session_timeout, "test session timeout in seconds (100 by default, 0 == never)");
-
-static int rpc_timeout = 64;
-module_param(rpc_timeout, int, 0644);
-MODULE_PARM_DESC(rpc_timeout, "rpc timeout in seconds (64 by default, 0 == never)");
-
-#define sfw_unpack_id(id)          \
-do {                               \
-	__swab64s(&(id).nid);	   \
-	__swab32s(&(id).pid);	   \
-} while (0)
-
-#define sfw_unpack_sid(sid)             \
-do {                                    \
-	__swab64s(&(sid).ses_nid);      \
-	__swab64s(&(sid).ses_stamp);    \
-} while (0)
-
-#define sfw_unpack_fw_counters(fc)        \
-do {                                      \
-	__swab32s(&(fc).running_ms);      \
-	__swab32s(&(fc).active_batches);  \
-	__swab32s(&(fc).zombie_sessions); \
-	__swab32s(&(fc).brw_errors);      \
-	__swab32s(&(fc).ping_errors);     \
-} while (0)
-
-#define sfw_unpack_rpc_counters(rc)     \
-do {                                    \
-	__swab32s(&(rc).errors);	\
-	__swab32s(&(rc).rpcs_sent);     \
-	__swab32s(&(rc).rpcs_rcvd);     \
-	__swab32s(&(rc).rpcs_dropped);  \
-	__swab32s(&(rc).rpcs_expired);  \
-	__swab64s(&(rc).bulk_get);      \
-	__swab64s(&(rc).bulk_put);      \
-} while (0)
-
-#define sfw_unpack_lnet_counters(lc)    \
-do {                                    \
-	__swab32s(&(lc).errors);	\
-	__swab32s(&(lc).msgs_max);      \
-	__swab32s(&(lc).msgs_alloc);    \
-	__swab32s(&(lc).send_count);    \
-	__swab32s(&(lc).recv_count);    \
-	__swab32s(&(lc).drop_count);    \
-	__swab32s(&(lc).route_count);   \
-	__swab64s(&(lc).send_length);   \
-	__swab64s(&(lc).recv_length);   \
-	__swab64s(&(lc).drop_length);   \
-	__swab64s(&(lc).route_length);  \
-} while (0)
-
-#define sfw_test_active(t)      (atomic_read(&(t)->tsi_nactive) != 0)
-#define sfw_batch_active(b)     (atomic_read(&(b)->bat_nactive) != 0)
-
-static struct smoketest_framework {
-	struct list_head  fw_zombie_rpcs;     /* RPCs to be recycled */
-	struct list_head  fw_zombie_sessions; /* stopping sessions */
-	struct list_head  fw_tests;           /* registered test cases */
-	atomic_t          fw_nzombies;        /* # zombie sessions */
-	spinlock_t        fw_lock;            /* serialise */
-	sfw_session_t     *fw_session;        /* _the_ session */
-	int               fw_shuttingdown;    /* shutdown in progress */
-	srpc_server_rpc_t *fw_active_srpc;    /* running RPC */
-} sfw_data;
-
-/* forward ref's */
-int sfw_stop_batch(sfw_batch_t *tsb, int force);
-void sfw_destroy_session(sfw_session_t *sn);
-
-static inline sfw_test_case_t *
-sfw_find_test_case(int id)
-{
-	sfw_test_case_t *tsc;
-
-	LASSERT(id <= SRPC_SERVICE_MAX_ID);
-	LASSERT(id > SRPC_FRAMEWORK_SERVICE_MAX_ID);
-
-	list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) {
-		if (tsc->tsc_srv_service->sv_id == id)
-			return tsc;
-	}
-
-	return NULL;
-}
-
-static int
-sfw_register_test(srpc_service_t *service, sfw_test_client_ops_t *cliops)
-{
-	sfw_test_case_t *tsc;
-
-	if (sfw_find_test_case(service->sv_id) != NULL) {
-		CERROR("Failed to register test %s (%d)\n",
-			service->sv_name, service->sv_id);
-		return -EEXIST;
-	}
-
-	LIBCFS_ALLOC(tsc, sizeof(sfw_test_case_t));
-	if (tsc == NULL)
-		return -ENOMEM;
-
-	tsc->tsc_cli_ops     = cliops;
-	tsc->tsc_srv_service = service;
-
-	list_add_tail(&tsc->tsc_list, &sfw_data.fw_tests);
-	return 0;
-}
-
-static void
-sfw_add_session_timer(void)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	stt_timer_t *timer = &sn->sn_timer;
-
-	LASSERT(!sfw_data.fw_shuttingdown);
-
-	if (sn == NULL || sn->sn_timeout == 0)
-		return;
-
-	LASSERT(!sn->sn_timer_active);
-
-	sn->sn_timer_active = 1;
-	timer->stt_expires = cfs_time_add(sn->sn_timeout,
-					  get_seconds());
-	stt_add_timer(timer);
-	return;
-}
-
-static int
-sfw_del_session_timer(void)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-
-	if (sn == NULL || !sn->sn_timer_active)
-		return 0;
-
-	LASSERT(sn->sn_timeout != 0);
-
-	if (stt_del_timer(&sn->sn_timer)) { /* timer defused */
-		sn->sn_timer_active = 0;
-		return 0;
-	}
-
-	return EBUSY; /* racing with sfw_session_expired() */
-}
-
-static void
-sfw_deactivate_session(void)
-	__must_hold(&sfw_data.fw_lock)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	int nactive = 0;
-	sfw_batch_t *tsb;
-	sfw_test_case_t *tsc;
-
-	if (sn == NULL)
-		return;
-
-	LASSERT(!sn->sn_timer_active);
-
-	sfw_data.fw_session = NULL;
-	atomic_inc(&sfw_data.fw_nzombies);
-	list_add(&sn->sn_list, &sfw_data.fw_zombie_sessions);
-
-	spin_unlock(&sfw_data.fw_lock);
-
-	list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) {
-		srpc_abort_service(tsc->tsc_srv_service);
-	}
-
-	spin_lock(&sfw_data.fw_lock);
-
-	list_for_each_entry(tsb, &sn->sn_batches, bat_list) {
-		if (sfw_batch_active(tsb)) {
-			nactive++;
-			sfw_stop_batch(tsb, 1);
-		}
-	}
-
-	if (nactive != 0)
-		return;   /* wait for active batches to stop */
-
-	list_del_init(&sn->sn_list);
-	spin_unlock(&sfw_data.fw_lock);
-
-	sfw_destroy_session(sn);
-
-	spin_lock(&sfw_data.fw_lock);
-}
-
-
-static void
-sfw_session_expired(void *data)
-{
-	sfw_session_t *sn = data;
-
-	spin_lock(&sfw_data.fw_lock);
-
-	LASSERT(sn->sn_timer_active);
-	LASSERT(sn == sfw_data.fw_session);
-
-	CWARN("Session expired! sid: %s-%llu, name: %s\n",
-	       libcfs_nid2str(sn->sn_id.ses_nid),
-	       sn->sn_id.ses_stamp, &sn->sn_name[0]);
-
-	sn->sn_timer_active = 0;
-	sfw_deactivate_session();
-
-	spin_unlock(&sfw_data.fw_lock);
-}
-
-static inline void
-sfw_init_session(sfw_session_t *sn, lst_sid_t sid,
-		 unsigned features, const char *name)
-{
-	stt_timer_t *timer = &sn->sn_timer;
-
-	memset(sn, 0, sizeof(sfw_session_t));
-	INIT_LIST_HEAD(&sn->sn_list);
-	INIT_LIST_HEAD(&sn->sn_batches);
-	atomic_set(&sn->sn_refcount, 1);	/* +1 for caller */
-	atomic_set(&sn->sn_brw_errors, 0);
-	atomic_set(&sn->sn_ping_errors, 0);
-	strlcpy(&sn->sn_name[0], name, sizeof(sn->sn_name));
-
-	sn->sn_timer_active = 0;
-	sn->sn_id           = sid;
-	sn->sn_features	    = features;
-	sn->sn_timeout      = session_timeout;
-	sn->sn_started      = cfs_time_current();
-
-	timer->stt_data = sn;
-	timer->stt_func = sfw_session_expired;
-	INIT_LIST_HEAD(&timer->stt_list);
-}
-
-/* completion handler for incoming framework RPCs */
-static void
-sfw_server_rpc_done(struct srpc_server_rpc *rpc)
-{
-	struct srpc_service *sv	= rpc->srpc_scd->scd_svc;
-	int status = rpc->srpc_status;
-
-	CDEBUG(D_NET,
-		"Incoming framework RPC done: service %s, peer %s, status %s:%d\n",
-		sv->sv_name, libcfs_id2str(rpc->srpc_peer),
-		swi_state2str(rpc->srpc_wi.swi_state),
-		status);
-
-	if (rpc->srpc_bulk != NULL)
-		sfw_free_pages(rpc);
-	return;
-}
-
-static void
-sfw_client_rpc_fini(srpc_client_rpc_t *rpc)
-{
-	LASSERT(rpc->crpc_bulk.bk_niov == 0);
-	LASSERT(list_empty(&rpc->crpc_list));
-	LASSERT(atomic_read(&rpc->crpc_refcount) == 0);
-
-	CDEBUG(D_NET,
-		"Outgoing framework RPC done: service %d, peer %s, status %s:%d:%d\n",
-		rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
-		swi_state2str(rpc->crpc_wi.swi_state),
-		rpc->crpc_aborted, rpc->crpc_status);
-
-	spin_lock(&sfw_data.fw_lock);
-
-	/* my callers must finish all RPCs before shutting me down */
-	LASSERT(!sfw_data.fw_shuttingdown);
-	list_add(&rpc->crpc_list, &sfw_data.fw_zombie_rpcs);
-
-	spin_unlock(&sfw_data.fw_lock);
-}
-
-static sfw_batch_t *
-sfw_find_batch(lst_bid_t bid)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	sfw_batch_t *bat;
-
-	LASSERT(sn != NULL);
-
-	list_for_each_entry(bat, &sn->sn_batches, bat_list) {
-		if (bat->bat_id.bat_id == bid.bat_id)
-			return bat;
-	}
-
-	return NULL;
-}
-
-static sfw_batch_t *
-sfw_bid2batch(lst_bid_t bid)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	sfw_batch_t *bat;
-
-	LASSERT(sn != NULL);
-
-	bat = sfw_find_batch(bid);
-	if (bat != NULL)
-		return bat;
-
-	LIBCFS_ALLOC(bat, sizeof(sfw_batch_t));
-	if (bat == NULL)
-		return NULL;
-
-	bat->bat_error    = 0;
-	bat->bat_session  = sn;
-	bat->bat_id       = bid;
-	atomic_set(&bat->bat_nactive, 0);
-	INIT_LIST_HEAD(&bat->bat_tests);
-
-	list_add_tail(&bat->bat_list, &sn->sn_batches);
-	return bat;
-}
-
-static int
-sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	sfw_counters_t *cnt = &reply->str_fw;
-	sfw_batch_t *bat;
-	struct timeval tv;
-
-	reply->str_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
-
-	if (request->str_sid.ses_nid == LNET_NID_ANY) {
-		reply->str_status = EINVAL;
-		return 0;
-	}
-
-	if (sn == NULL || !sfw_sid_equal(request->str_sid, sn->sn_id)) {
-		reply->str_status = ESRCH;
-		return 0;
-	}
-
-	lnet_counters_get(&reply->str_lnet);
-	srpc_get_counters(&reply->str_rpc);
-
-	/* send over the msecs since the session was started
-	 - with 32 bits to send, this is ~49 days */
-	cfs_duration_usec(cfs_time_sub(cfs_time_current(),
-				       sn->sn_started), &tv);
-
-	cnt->running_ms      = (__u32)(tv.tv_sec * 1000 + tv.tv_usec / 1000);
-	cnt->brw_errors      = atomic_read(&sn->sn_brw_errors);
-	cnt->ping_errors     = atomic_read(&sn->sn_ping_errors);
-	cnt->zombie_sessions = atomic_read(&sfw_data.fw_nzombies);
-
-	cnt->active_batches = 0;
-	list_for_each_entry(bat, &sn->sn_batches, bat_list) {
-		if (atomic_read(&bat->bat_nactive) > 0)
-			cnt->active_batches++;
-	}
-
-	reply->str_status = 0;
-	return 0;
-}
-
-int
-sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	srpc_msg_t *msg = container_of(request, srpc_msg_t,
-					  msg_body.mksn_reqst);
-	int cplen = 0;
-
-	if (request->mksn_sid.ses_nid == LNET_NID_ANY) {
-		reply->mksn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
-		reply->mksn_status = EINVAL;
-		return 0;
-	}
-
-	if (sn != NULL) {
-		reply->mksn_status  = 0;
-		reply->mksn_sid     = sn->sn_id;
-		reply->mksn_timeout = sn->sn_timeout;
-
-		if (sfw_sid_equal(request->mksn_sid, sn->sn_id)) {
-			atomic_inc(&sn->sn_refcount);
-			return 0;
-		}
-
-		if (!request->mksn_force) {
-			reply->mksn_status = EBUSY;
-			cplen = strlcpy(&reply->mksn_name[0], &sn->sn_name[0],
-					sizeof(reply->mksn_name));
-			if (cplen >= sizeof(reply->mksn_name))
-				return -E2BIG;
-			return 0;
-		}
-	}
-
-	/* reject the request if it requires unknown features
-	 * NB: old version will always accept all features because it's not
-	 * aware of srpc_msg_t::msg_ses_feats, it's a defect but it's also
-	 * harmless because it will return zero feature to console, and it's
-	 * console's responsibility to make sure all nodes in a session have
-	 * same feature mask. */
-	if ((msg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
-		reply->mksn_status = EPROTO;
-		return 0;
-	}
-
-	/* brand new or create by force */
-	LIBCFS_ALLOC(sn, sizeof(sfw_session_t));
-	if (sn == NULL) {
-		CERROR("Dropping RPC (mksn) under memory pressure.\n");
-		return -ENOMEM;
-	}
-
-	sfw_init_session(sn, request->mksn_sid,
-			 msg->msg_ses_feats, &request->mksn_name[0]);
-
-	spin_lock(&sfw_data.fw_lock);
-
-	sfw_deactivate_session();
-	LASSERT(sfw_data.fw_session == NULL);
-	sfw_data.fw_session = sn;
-
-	spin_unlock(&sfw_data.fw_lock);
-
-	reply->mksn_status  = 0;
-	reply->mksn_sid     = sn->sn_id;
-	reply->mksn_timeout = sn->sn_timeout;
-	return 0;
-}
-
-static int
-sfw_remove_session(srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-
-	reply->rmsn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
-
-	if (request->rmsn_sid.ses_nid == LNET_NID_ANY) {
-		reply->rmsn_status = EINVAL;
-		return 0;
-	}
-
-	if (sn == NULL || !sfw_sid_equal(request->rmsn_sid, sn->sn_id)) {
-		reply->rmsn_status = (sn == NULL) ? ESRCH : EBUSY;
-		return 0;
-	}
-
-	if (!atomic_dec_and_test(&sn->sn_refcount)) {
-		reply->rmsn_status = 0;
-		return 0;
-	}
-
-	spin_lock(&sfw_data.fw_lock);
-	sfw_deactivate_session();
-	spin_unlock(&sfw_data.fw_lock);
-
-	reply->rmsn_status = 0;
-	reply->rmsn_sid    = LST_INVALID_SID;
-	LASSERT(sfw_data.fw_session == NULL);
-	return 0;
-}
-
-static int
-sfw_debug_session(srpc_debug_reqst_t *request, srpc_debug_reply_t *reply)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-
-	if (sn == NULL) {
-		reply->dbg_status = ESRCH;
-		reply->dbg_sid    = LST_INVALID_SID;
-		return 0;
-	}
-
-	reply->dbg_status  = 0;
-	reply->dbg_sid     = sn->sn_id;
-	reply->dbg_timeout = sn->sn_timeout;
-	if (strlcpy(reply->dbg_name, &sn->sn_name[0], sizeof(reply->dbg_name))
-	    >= sizeof(reply->dbg_name))
-		return -E2BIG;
-
-	return 0;
-}
-
-static void
-sfw_test_rpc_fini(srpc_client_rpc_t *rpc)
-{
-	sfw_test_unit_t *tsu = rpc->crpc_priv;
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-
-	/* Called with hold of tsi->tsi_lock */
-	LASSERT(list_empty(&rpc->crpc_list));
-	list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
-}
-
-static inline int
-sfw_test_buffers(sfw_test_instance_t *tsi)
-{
-	struct sfw_test_case *tsc = sfw_find_test_case(tsi->tsi_service);
-	struct srpc_service *svc = tsc->tsc_srv_service;
-	int nbuf;
-
-	nbuf = min(svc->sv_wi_total, tsi->tsi_loop) / svc->sv_ncpts;
-	return max(SFW_TEST_WI_MIN, nbuf + SFW_TEST_WI_EXTRA);
-}
-
-static int
-sfw_load_test(struct sfw_test_instance *tsi)
-{
-	struct sfw_test_case *tsc;
-	struct srpc_service *svc;
-	int nbuf;
-	int rc;
-
-	LASSERT(tsi != NULL);
-	tsc = sfw_find_test_case(tsi->tsi_service);
-	nbuf = sfw_test_buffers(tsi);
-	LASSERT(tsc != NULL);
-	svc = tsc->tsc_srv_service;
-
-	if (tsi->tsi_is_client) {
-		tsi->tsi_ops = tsc->tsc_cli_ops;
-		return 0;
-	}
-
-	rc = srpc_service_add_buffers(svc, nbuf);
-	if (rc != 0) {
-		CWARN("Failed to reserve enough buffers: service %s, %d needed: %d\n",
-		      svc->sv_name, nbuf, rc);
-		/* NB: this error handler is not strictly correct, because
-		 * it may release more buffers than already allocated,
-		 * but it doesn't matter because request portal should
-		 * be lazy portal and will grow buffers if necessary. */
-		srpc_service_remove_buffers(svc, nbuf);
-		return -ENOMEM;
-	}
-
-	CDEBUG(D_NET, "Reserved %d buffers for test %s\n",
-	       nbuf * (srpc_serv_is_framework(svc) ?
-		       1 : cfs_cpt_number(cfs_cpt_table)), svc->sv_name);
-	return 0;
-}
-
-static void
-sfw_unload_test(struct sfw_test_instance *tsi)
-{
-	struct sfw_test_case *tsc = sfw_find_test_case(tsi->tsi_service);
-
-	LASSERT(tsc != NULL);
-
-	if (tsi->tsi_is_client)
-		return;
-
-	/* shrink buffers, because request portal is lazy portal
-	 * which can grow buffers at runtime so we may leave
-	 * some buffers behind, but never mind... */
-	srpc_service_remove_buffers(tsc->tsc_srv_service,
-				    sfw_test_buffers(tsi));
-	return;
-}
-
-static void
-sfw_destroy_test_instance(sfw_test_instance_t *tsi)
-{
-	srpc_client_rpc_t *rpc;
-	sfw_test_unit_t *tsu;
-
-	if (!tsi->tsi_is_client)
-		goto clean;
-
-	tsi->tsi_ops->tso_fini(tsi);
-
-	LASSERT(!tsi->tsi_stopping);
-	LASSERT(list_empty(&tsi->tsi_active_rpcs));
-	LASSERT(!sfw_test_active(tsi));
-
-	while (!list_empty(&tsi->tsi_units)) {
-		tsu = list_entry(tsi->tsi_units.next,
-				     sfw_test_unit_t, tsu_list);
-		list_del(&tsu->tsu_list);
-		LIBCFS_FREE(tsu, sizeof(*tsu));
-	}
-
-	while (!list_empty(&tsi->tsi_free_rpcs)) {
-		rpc = list_entry(tsi->tsi_free_rpcs.next,
-				     srpc_client_rpc_t, crpc_list);
-		list_del(&rpc->crpc_list);
-		LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
-	}
-
-clean:
-	sfw_unload_test(tsi);
-	LIBCFS_FREE(tsi, sizeof(*tsi));
-	return;
-}
-
-static void
-sfw_destroy_batch(sfw_batch_t *tsb)
-{
-	sfw_test_instance_t *tsi;
-
-	LASSERT(!sfw_batch_active(tsb));
-	LASSERT(list_empty(&tsb->bat_list));
-
-	while (!list_empty(&tsb->bat_tests)) {
-		tsi = list_entry(tsb->bat_tests.next,
-				     sfw_test_instance_t, tsi_list);
-		list_del_init(&tsi->tsi_list);
-		sfw_destroy_test_instance(tsi);
-	}
-
-	LIBCFS_FREE(tsb, sizeof(sfw_batch_t));
-	return;
-}
-
-void
-sfw_destroy_session(sfw_session_t *sn)
-{
-	sfw_batch_t *batch;
-
-	LASSERT(list_empty(&sn->sn_list));
-	LASSERT(sn != sfw_data.fw_session);
-
-	while (!list_empty(&sn->sn_batches)) {
-		batch = list_entry(sn->sn_batches.next,
-				       sfw_batch_t, bat_list);
-		list_del_init(&batch->bat_list);
-		sfw_destroy_batch(batch);
-	}
-
-	LIBCFS_FREE(sn, sizeof(*sn));
-	atomic_dec(&sfw_data.fw_nzombies);
-	return;
-}
-
-static void
-sfw_unpack_addtest_req(srpc_msg_t *msg)
-{
-	srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
-
-	LASSERT(msg->msg_type == SRPC_MSG_TEST_REQST);
-	LASSERT(req->tsr_is_client);
-
-	if (msg->msg_magic == SRPC_MSG_MAGIC)
-		return; /* no flipping needed */
-
-	LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
-
-	if (req->tsr_service == SRPC_SERVICE_BRW) {
-		if ((msg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
-			test_bulk_req_t *bulk = &req->tsr_u.bulk_v0;
-
-			__swab32s(&bulk->blk_opc);
-			__swab32s(&bulk->blk_npg);
-			__swab32s(&bulk->blk_flags);
-
-		} else {
-			test_bulk_req_v1_t *bulk = &req->tsr_u.bulk_v1;
-
-			__swab16s(&bulk->blk_opc);
-			__swab16s(&bulk->blk_flags);
-			__swab32s(&bulk->blk_offset);
-			__swab32s(&bulk->blk_len);
-		}
-
-		return;
-	}
-
-	if (req->tsr_service == SRPC_SERVICE_PING) {
-		test_ping_req_t *ping = &req->tsr_u.ping;
-
-		__swab32s(&ping->png_size);
-		__swab32s(&ping->png_flags);
-		return;
-	}
-
-	LBUG();
-	return;
-}
-
-static int
-sfw_add_test_instance(sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
-{
-	srpc_msg_t *msg = &rpc->srpc_reqstbuf->buf_msg;
-	srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
-	srpc_bulk_t *bk = rpc->srpc_bulk;
-	int ndest = req->tsr_ndest;
-	sfw_test_unit_t *tsu;
-	sfw_test_instance_t *tsi;
-	int i;
-	int rc;
-
-	LIBCFS_ALLOC(tsi, sizeof(*tsi));
-	if (tsi == NULL) {
-		CERROR("Can't allocate test instance for batch: %llu\n",
-			tsb->bat_id.bat_id);
-		return -ENOMEM;
-	}
-
-	spin_lock_init(&tsi->tsi_lock);
-	atomic_set(&tsi->tsi_nactive, 0);
-	INIT_LIST_HEAD(&tsi->tsi_units);
-	INIT_LIST_HEAD(&tsi->tsi_free_rpcs);
-	INIT_LIST_HEAD(&tsi->tsi_active_rpcs);
-
-	tsi->tsi_stopping      = 0;
-	tsi->tsi_batch         = tsb;
-	tsi->tsi_loop          = req->tsr_loop;
-	tsi->tsi_concur        = req->tsr_concur;
-	tsi->tsi_service       = req->tsr_service;
-	tsi->tsi_is_client     = !!(req->tsr_is_client);
-	tsi->tsi_stoptsu_onerr = !!(req->tsr_stop_onerr);
-
-	rc = sfw_load_test(tsi);
-	if (rc != 0) {
-		LIBCFS_FREE(tsi, sizeof(*tsi));
-		return rc;
-	}
-
-	LASSERT(!sfw_batch_active(tsb));
-
-	if (!tsi->tsi_is_client) {
-		/* it's test server, just add it to tsb */
-		list_add_tail(&tsi->tsi_list, &tsb->bat_tests);
-		return 0;
-	}
-
-	LASSERT(bk != NULL);
-	LASSERT(bk->bk_niov * SFW_ID_PER_PAGE >= (unsigned int)ndest);
-	LASSERT((unsigned int)bk->bk_len >=
-		sizeof(lnet_process_id_packed_t) * ndest);
-
-	sfw_unpack_addtest_req(msg);
-	memcpy(&tsi->tsi_u, &req->tsr_u, sizeof(tsi->tsi_u));
-
-	for (i = 0; i < ndest; i++) {
-		lnet_process_id_packed_t *dests;
-		lnet_process_id_packed_t id;
-		int j;
-
-		dests = page_address(bk->bk_iovs[i / SFW_ID_PER_PAGE].kiov_page);
-		LASSERT(dests != NULL);  /* my pages are within KVM always */
-		id = dests[i % SFW_ID_PER_PAGE];
-		if (msg->msg_magic != SRPC_MSG_MAGIC)
-			sfw_unpack_id(id);
-
-		for (j = 0; j < tsi->tsi_concur; j++) {
-			LIBCFS_ALLOC(tsu, sizeof(sfw_test_unit_t));
-			if (tsu == NULL) {
-				rc = -ENOMEM;
-				CERROR("Can't allocate tsu for %d\n",
-					tsi->tsi_service);
-				goto error;
-			}
-
-			tsu->tsu_dest.nid = id.nid;
-			tsu->tsu_dest.pid = id.pid;
-			tsu->tsu_instance = tsi;
-			tsu->tsu_private  = NULL;
-			list_add_tail(&tsu->tsu_list, &tsi->tsi_units);
-		}
-	}
-
-	rc = tsi->tsi_ops->tso_init(tsi);
-	if (rc == 0) {
-		list_add_tail(&tsi->tsi_list, &tsb->bat_tests);
-		return 0;
-	}
-
-error:
-	LASSERT(rc != 0);
-	sfw_destroy_test_instance(tsi);
-	return rc;
-}
-
-static void
-sfw_test_unit_done(sfw_test_unit_t *tsu)
-{
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-	sfw_batch_t *tsb = tsi->tsi_batch;
-	sfw_session_t *sn = tsb->bat_session;
-
-	LASSERT(sfw_test_active(tsi));
-
-	if (!atomic_dec_and_test(&tsi->tsi_nactive))
-		return;
-
-	/* the test instance is done */
-	spin_lock(&tsi->tsi_lock);
-
-	tsi->tsi_stopping = 0;
-
-	spin_unlock(&tsi->tsi_lock);
-
-	spin_lock(&sfw_data.fw_lock);
-
-	if (!atomic_dec_and_test(&tsb->bat_nactive) ||/* tsb still active */
-	    sn == sfw_data.fw_session) {		  /* sn also active */
-		spin_unlock(&sfw_data.fw_lock);
-		return;
-	}
-
-	LASSERT(!list_empty(&sn->sn_list)); /* I'm a zombie! */
-
-	list_for_each_entry(tsb, &sn->sn_batches, bat_list) {
-		if (sfw_batch_active(tsb)) {
-			spin_unlock(&sfw_data.fw_lock);
-			return;
-		}
-	}
-
-	list_del_init(&sn->sn_list);
-	spin_unlock(&sfw_data.fw_lock);
-
-	sfw_destroy_session(sn);
-	return;
-}
-
-static void
-sfw_test_rpc_done(srpc_client_rpc_t *rpc)
-{
-	sfw_test_unit_t *tsu = rpc->crpc_priv;
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-	int done = 0;
-
-	tsi->tsi_ops->tso_done_rpc(tsu, rpc);
-
-	spin_lock(&tsi->tsi_lock);
-
-	LASSERT(sfw_test_active(tsi));
-	LASSERT(!list_empty(&rpc->crpc_list));
-
-	list_del_init(&rpc->crpc_list);
-
-	/* batch is stopping or loop is done or get error */
-	if (tsi->tsi_stopping ||
-	    tsu->tsu_loop == 0 ||
-	    (rpc->crpc_status != 0 && tsi->tsi_stoptsu_onerr))
-		done = 1;
-
-	/* dec ref for poster */
-	srpc_client_rpc_decref(rpc);
-
-	spin_unlock(&tsi->tsi_lock);
-
-	if (!done) {
-		swi_schedule_workitem(&tsu->tsu_worker);
-		return;
-	}
-
-	sfw_test_unit_done(tsu);
-	return;
-}
-
-int
-sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
-		    unsigned features, int nblk, int blklen,
-		    srpc_client_rpc_t **rpcpp)
-{
-	srpc_client_rpc_t *rpc = NULL;
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-
-	spin_lock(&tsi->tsi_lock);
-
-	LASSERT(sfw_test_active(tsi));
-
-	if (!list_empty(&tsi->tsi_free_rpcs)) {
-		/* pick request from buffer */
-		rpc = list_entry(tsi->tsi_free_rpcs.next,
-				     srpc_client_rpc_t, crpc_list);
-		LASSERT(nblk == rpc->crpc_bulk.bk_niov);
-		list_del_init(&rpc->crpc_list);
-	}
-
-	spin_unlock(&tsi->tsi_lock);
-
-	if (rpc == NULL) {
-		rpc = srpc_create_client_rpc(peer, tsi->tsi_service, nblk,
-					     blklen, sfw_test_rpc_done,
-					     sfw_test_rpc_fini, tsu);
-	} else {
-		srpc_init_client_rpc(rpc, peer, tsi->tsi_service, nblk,
-				     blklen, sfw_test_rpc_done,
-				     sfw_test_rpc_fini, tsu);
-	}
-
-	if (rpc == NULL) {
-		CERROR("Can't create rpc for test %d\n", tsi->tsi_service);
-		return -ENOMEM;
-	}
-
-	rpc->crpc_reqstmsg.msg_ses_feats = features;
-	*rpcpp = rpc;
-
-	return 0;
-}
-
-static int
-sfw_run_test(swi_workitem_t *wi)
-{
-	sfw_test_unit_t *tsu = wi->swi_workitem.wi_data;
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-	srpc_client_rpc_t *rpc = NULL;
-
-	LASSERT(wi == &tsu->tsu_worker);
-
-	if (tsi->tsi_ops->tso_prep_rpc(tsu, tsu->tsu_dest, &rpc) != 0) {
-		LASSERT(rpc == NULL);
-		goto test_done;
-	}
-
-	LASSERT(rpc != NULL);
-
-	spin_lock(&tsi->tsi_lock);
-
-	if (tsi->tsi_stopping) {
-		list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
-		spin_unlock(&tsi->tsi_lock);
-		goto test_done;
-	}
-
-	if (tsu->tsu_loop > 0)
-		tsu->tsu_loop--;
-
-	list_add_tail(&rpc->crpc_list, &tsi->tsi_active_rpcs);
-	spin_unlock(&tsi->tsi_lock);
-
-	rpc->crpc_timeout = rpc_timeout;
-
-	spin_lock(&rpc->crpc_lock);
-	srpc_post_rpc(rpc);
-	spin_unlock(&rpc->crpc_lock);
-	return 0;
-
-test_done:
-	/*
-	 * No one can schedule me now since:
-	 * - previous RPC, if any, has done and
-	 * - no new RPC is initiated.
-	 * - my batch is still active; no one can run it again now.
-	 * Cancel pending schedules and prevent future schedule attempts:
-	 */
-	swi_exit_workitem(wi);
-	sfw_test_unit_done(tsu);
-	return 1;
-}
-
-static int
-sfw_run_batch(sfw_batch_t *tsb)
-{
-	swi_workitem_t *wi;
-	sfw_test_unit_t *tsu;
-	sfw_test_instance_t *tsi;
-
-	if (sfw_batch_active(tsb)) {
-		CDEBUG(D_NET, "Batch already active: %llu (%d)\n",
-		       tsb->bat_id.bat_id, atomic_read(&tsb->bat_nactive));
-		return 0;
-	}
-
-	list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) {
-		if (!tsi->tsi_is_client) /* skip server instances */
-			continue;
-
-		LASSERT(!tsi->tsi_stopping);
-		LASSERT(!sfw_test_active(tsi));
-
-		atomic_inc(&tsb->bat_nactive);
-
-		list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
-			atomic_inc(&tsi->tsi_nactive);
-			tsu->tsu_loop = tsi->tsi_loop;
-			wi = &tsu->tsu_worker;
-			swi_init_workitem(wi, tsu, sfw_run_test,
-					  lst_sched_test[\
-					  lnet_cpt_of_nid(tsu->tsu_dest.nid)]);
-			swi_schedule_workitem(wi);
-		}
-	}
-
-	return 0;
-}
-
-int
-sfw_stop_batch(sfw_batch_t *tsb, int force)
-{
-	sfw_test_instance_t *tsi;
-	srpc_client_rpc_t *rpc;
-
-	if (!sfw_batch_active(tsb)) {
-		CDEBUG(D_NET, "Batch %llu inactive\n", tsb->bat_id.bat_id);
-		return 0;
-	}
-
-	list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) {
-		spin_lock(&tsi->tsi_lock);
-
-		if (!tsi->tsi_is_client ||
-		    !sfw_test_active(tsi) || tsi->tsi_stopping) {
-			spin_unlock(&tsi->tsi_lock);
-			continue;
-		}
-
-		tsi->tsi_stopping = 1;
-
-		if (!force) {
-			spin_unlock(&tsi->tsi_lock);
-			continue;
-		}
-
-		/* abort launched rpcs in the test */
-		list_for_each_entry(rpc, &tsi->tsi_active_rpcs, crpc_list) {
-			spin_lock(&rpc->crpc_lock);
-
-			srpc_abort_rpc(rpc, -EINTR);
-
-			spin_unlock(&rpc->crpc_lock);
-		}
-
-		spin_unlock(&tsi->tsi_lock);
-	}
-
-	return 0;
-}
-
-static int
-sfw_query_batch(sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
-{
-	sfw_test_instance_t *tsi;
-
-	if (testidx < 0)
-		return -EINVAL;
-
-	if (testidx == 0) {
-		reply->bar_active = atomic_read(&tsb->bat_nactive);
-		return 0;
-	}
-
-	list_for_each_entry(tsi, &tsb->bat_tests, tsi_list) {
-		if (testidx-- > 1)
-			continue;
-
-		reply->bar_active = atomic_read(&tsi->tsi_nactive);
-		return 0;
-	}
-
-	return -ENOENT;
-}
-
-void
-sfw_free_pages(srpc_server_rpc_t *rpc)
-{
-	srpc_free_bulk(rpc->srpc_bulk);
-	rpc->srpc_bulk = NULL;
-}
-
-int
-sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
-		int sink)
-{
-	LASSERT(rpc->srpc_bulk == NULL);
-	LASSERT(npages > 0 && npages <= LNET_MAX_IOV);
-
-	rpc->srpc_bulk = srpc_alloc_bulk(cpt, npages, len, sink);
-	if (rpc->srpc_bulk == NULL)
-		return -ENOMEM;
-
-	return 0;
-}
-
-static int
-sfw_add_test(srpc_server_rpc_t *rpc)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply;
-	srpc_test_reqst_t *request;
-	int rc;
-	sfw_batch_t *bat;
-
-	request = &rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst;
-	reply->tsr_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
-
-	if (request->tsr_loop == 0 ||
-	    request->tsr_concur == 0 ||
-	    request->tsr_sid.ses_nid == LNET_NID_ANY ||
-	    request->tsr_ndest > SFW_MAX_NDESTS ||
-	    (request->tsr_is_client && request->tsr_ndest == 0) ||
-	    request->tsr_concur > SFW_MAX_CONCUR ||
-	    request->tsr_service > SRPC_SERVICE_MAX_ID ||
-	    request->tsr_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID) {
-		reply->tsr_status = EINVAL;
-		return 0;
-	}
-
-	if (sn == NULL || !sfw_sid_equal(request->tsr_sid, sn->sn_id) ||
-	    sfw_find_test_case(request->tsr_service) == NULL) {
-		reply->tsr_status = ENOENT;
-		return 0;
-	}
-
-	bat = sfw_bid2batch(request->tsr_bid);
-	if (bat == NULL) {
-		CERROR("Dropping RPC (%s) from %s under memory pressure.\n",
-			rpc->srpc_scd->scd_svc->sv_name,
-			libcfs_id2str(rpc->srpc_peer));
-		return -ENOMEM;
-	}
-
-	if (sfw_batch_active(bat)) {
-		reply->tsr_status = EBUSY;
-		return 0;
-	}
-
-	if (request->tsr_is_client && rpc->srpc_bulk == NULL) {
-		/* rpc will be resumed later in sfw_bulk_ready */
-		int npg = sfw_id_pages(request->tsr_ndest);
-		int len;
-
-		if ((sn->sn_features & LST_FEAT_BULK_LEN) == 0) {
-			len = npg * PAGE_CACHE_SIZE;
-
-		} else  {
-			len = sizeof(lnet_process_id_packed_t) *
-			      request->tsr_ndest;
-		}
-
-		return sfw_alloc_pages(rpc, CFS_CPT_ANY, npg, len, 1);
-	}
-
-	rc = sfw_add_test_instance(bat, rpc);
-	CDEBUG(rc == 0 ? D_NET : D_WARNING,
-		"%s test: sv %d %s, loop %d, concur %d, ndest %d\n",
-		rc == 0 ? "Added" : "Failed to add", request->tsr_service,
-		request->tsr_is_client ? "client" : "server",
-		request->tsr_loop, request->tsr_concur, request->tsr_ndest);
-
-	reply->tsr_status = (rc < 0) ? -rc : rc;
-	return 0;
-}
-
-static int
-sfw_control_batch(srpc_batch_reqst_t *request, srpc_batch_reply_t *reply)
-{
-	sfw_session_t *sn = sfw_data.fw_session;
-	int rc = 0;
-	sfw_batch_t *bat;
-
-	reply->bar_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
-
-	if (sn == NULL || !sfw_sid_equal(request->bar_sid, sn->sn_id)) {
-		reply->bar_status = ESRCH;
-		return 0;
-	}
-
-	bat = sfw_find_batch(request->bar_bid);
-	if (bat == NULL) {
-		reply->bar_status = ENOENT;
-		return 0;
-	}
-
-	switch (request->bar_opc) {
-	case SRPC_BATCH_OPC_RUN:
-		rc = sfw_run_batch(bat);
-		break;
-
-	case SRPC_BATCH_OPC_STOP:
-		rc = sfw_stop_batch(bat, request->bar_arg);
-		break;
-
-	case SRPC_BATCH_OPC_QUERY:
-		rc = sfw_query_batch(bat, request->bar_testidx, reply);
-		break;
-
-	default:
-		return -EINVAL; /* drop it */
-	}
-
-	reply->bar_status = (rc < 0) ? -rc : rc;
-	return 0;
-}
-
-static int
-sfw_handle_server_rpc(struct srpc_server_rpc *rpc)
-{
-	struct srpc_service *sv = rpc->srpc_scd->scd_svc;
-	srpc_msg_t *reply = &rpc->srpc_replymsg;
-	srpc_msg_t *request = &rpc->srpc_reqstbuf->buf_msg;
-	unsigned features = LST_FEATS_MASK;
-	int rc = 0;
-
-	LASSERT(sfw_data.fw_active_srpc == NULL);
-	LASSERT(sv->sv_id <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
-
-	spin_lock(&sfw_data.fw_lock);
-
-	if (sfw_data.fw_shuttingdown) {
-		spin_unlock(&sfw_data.fw_lock);
-		return -ESHUTDOWN;
-	}
-
-	/* Remove timer to avoid racing with it or expiring active session */
-	if (sfw_del_session_timer() != 0) {
-		CERROR("Dropping RPC (%s) from %s: racing with expiry timer.",
-		       sv->sv_name, libcfs_id2str(rpc->srpc_peer));
-		spin_unlock(&sfw_data.fw_lock);
-		return -EAGAIN;
-	}
-
-	sfw_data.fw_active_srpc = rpc;
-	spin_unlock(&sfw_data.fw_lock);
-
-	sfw_unpack_message(request);
-	LASSERT(request->msg_type == srpc_service2request(sv->sv_id));
-
-	/* rpc module should have checked this */
-	LASSERT(request->msg_version == SRPC_MSG_VERSION);
-
-	if (sv->sv_id != SRPC_SERVICE_MAKE_SESSION &&
-	    sv->sv_id != SRPC_SERVICE_DEBUG) {
-		sfw_session_t *sn = sfw_data.fw_session;
-
-		if (sn != NULL &&
-		    sn->sn_features != request->msg_ses_feats) {
-			CNETERR("Features of framework RPC don't match features of current session: %x/%x\n",
-				request->msg_ses_feats, sn->sn_features);
-			reply->msg_body.reply.status = EPROTO;
-			reply->msg_body.reply.sid    = sn->sn_id;
-			goto out;
-		}
-
-	} else if ((request->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
-		/* NB: at this point, old version will ignore features and
-		 * create new session anyway, so console should be able
-		 * to handle this */
-		reply->msg_body.reply.status = EPROTO;
-		goto out;
-	}
-
-	switch (sv->sv_id) {
-	default:
-		LBUG();
-	case SRPC_SERVICE_TEST:
-		rc = sfw_add_test(rpc);
-		break;
-
-	case SRPC_SERVICE_BATCH:
-		rc = sfw_control_batch(&request->msg_body.bat_reqst,
-				       &reply->msg_body.bat_reply);
-		break;
-
-	case SRPC_SERVICE_QUERY_STAT:
-		rc = sfw_get_stats(&request->msg_body.stat_reqst,
-				   &reply->msg_body.stat_reply);
-		break;
-
-	case SRPC_SERVICE_DEBUG:
-		rc = sfw_debug_session(&request->msg_body.dbg_reqst,
-				       &reply->msg_body.dbg_reply);
-		break;
-
-	case SRPC_SERVICE_MAKE_SESSION:
-		rc = sfw_make_session(&request->msg_body.mksn_reqst,
-				      &reply->msg_body.mksn_reply);
-		break;
-
-	case SRPC_SERVICE_REMOVE_SESSION:
-		rc = sfw_remove_session(&request->msg_body.rmsn_reqst,
-					&reply->msg_body.rmsn_reply);
-		break;
-	}
-
-	if (sfw_data.fw_session != NULL)
-		features = sfw_data.fw_session->sn_features;
- out:
-	reply->msg_ses_feats = features;
-	rpc->srpc_done = sfw_server_rpc_done;
-	spin_lock(&sfw_data.fw_lock);
-
-	if (!sfw_data.fw_shuttingdown)
-		sfw_add_session_timer();
-
-	sfw_data.fw_active_srpc = NULL;
-	spin_unlock(&sfw_data.fw_lock);
-	return rc;
-}
-
-static int
-sfw_bulk_ready(struct srpc_server_rpc *rpc, int status)
-{
-	struct srpc_service *sv = rpc->srpc_scd->scd_svc;
-	int rc;
-
-	LASSERT(rpc->srpc_bulk != NULL);
-	LASSERT(sv->sv_id == SRPC_SERVICE_TEST);
-	LASSERT(sfw_data.fw_active_srpc == NULL);
-	LASSERT(rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst.tsr_is_client);
-
-	spin_lock(&sfw_data.fw_lock);
-
-	if (status != 0) {
-		CERROR("Bulk transfer failed for RPC: service %s, peer %s, status %d\n",
-		       sv->sv_name, libcfs_id2str(rpc->srpc_peer), status);
-		spin_unlock(&sfw_data.fw_lock);
-		return -EIO;
-	}
-
-	if (sfw_data.fw_shuttingdown) {
-		spin_unlock(&sfw_data.fw_lock);
-		return -ESHUTDOWN;
-	}
-
-	if (sfw_del_session_timer() != 0) {
-		CERROR("Dropping RPC (%s) from %s: racing with expiry timer",
-		       sv->sv_name, libcfs_id2str(rpc->srpc_peer));
-		spin_unlock(&sfw_data.fw_lock);
-		return -EAGAIN;
-	}
-
-	sfw_data.fw_active_srpc = rpc;
-	spin_unlock(&sfw_data.fw_lock);
-
-	rc = sfw_add_test(rpc);
-
-	spin_lock(&sfw_data.fw_lock);
-
-	if (!sfw_data.fw_shuttingdown)
-		sfw_add_session_timer();
-
-	sfw_data.fw_active_srpc = NULL;
-	spin_unlock(&sfw_data.fw_lock);
-	return rc;
-}
-
-srpc_client_rpc_t *
-sfw_create_rpc(lnet_process_id_t peer, int service,
-	       unsigned features, int nbulkiov, int bulklen,
-	       void (*done)(srpc_client_rpc_t *), void *priv)
-{
-	srpc_client_rpc_t *rpc = NULL;
-
-	spin_lock(&sfw_data.fw_lock);
-
-	LASSERT(!sfw_data.fw_shuttingdown);
-	LASSERT(service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
-
-	if (nbulkiov == 0 && !list_empty(&sfw_data.fw_zombie_rpcs)) {
-		rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
-				     srpc_client_rpc_t, crpc_list);
-		list_del(&rpc->crpc_list);
-
-		srpc_init_client_rpc(rpc, peer, service, 0, 0,
-				     done, sfw_client_rpc_fini, priv);
-	}
-
-	spin_unlock(&sfw_data.fw_lock);
-
-	if (rpc == NULL) {
-		rpc = srpc_create_client_rpc(peer, service,
-					     nbulkiov, bulklen, done,
-					     nbulkiov != 0 ?  NULL :
-					     sfw_client_rpc_fini,
-					     priv);
-	}
-
-	if (rpc != NULL) /* "session" is concept in framework */
-		rpc->crpc_reqstmsg.msg_ses_feats = features;
-
-	return rpc;
-}
-
-void
-sfw_unpack_message(srpc_msg_t *msg)
-{
-	if (msg->msg_magic == SRPC_MSG_MAGIC)
-		return; /* no flipping needed */
-
-	/* srpc module should guarantee I wouldn't get crap */
-	LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
-
-	if (msg->msg_type == SRPC_MSG_STAT_REQST) {
-		srpc_stat_reqst_t *req = &msg->msg_body.stat_reqst;
-
-		__swab32s(&req->str_type);
-		__swab64s(&req->str_rpyid);
-		sfw_unpack_sid(req->str_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_STAT_REPLY) {
-		srpc_stat_reply_t *rep = &msg->msg_body.stat_reply;
-
-		__swab32s(&rep->str_status);
-		sfw_unpack_sid(rep->str_sid);
-		sfw_unpack_fw_counters(rep->str_fw);
-		sfw_unpack_rpc_counters(rep->str_rpc);
-		sfw_unpack_lnet_counters(rep->str_lnet);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_MKSN_REQST) {
-		srpc_mksn_reqst_t *req = &msg->msg_body.mksn_reqst;
-
-		__swab64s(&req->mksn_rpyid);
-		__swab32s(&req->mksn_force);
-		sfw_unpack_sid(req->mksn_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_MKSN_REPLY) {
-		srpc_mksn_reply_t *rep = &msg->msg_body.mksn_reply;
-
-		__swab32s(&rep->mksn_status);
-		__swab32s(&rep->mksn_timeout);
-		sfw_unpack_sid(rep->mksn_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_RMSN_REQST) {
-		srpc_rmsn_reqst_t *req = &msg->msg_body.rmsn_reqst;
-
-		__swab64s(&req->rmsn_rpyid);
-		sfw_unpack_sid(req->rmsn_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_RMSN_REPLY) {
-		srpc_rmsn_reply_t *rep = &msg->msg_body.rmsn_reply;
-
-		__swab32s(&rep->rmsn_status);
-		sfw_unpack_sid(rep->rmsn_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_DEBUG_REQST) {
-		srpc_debug_reqst_t *req = &msg->msg_body.dbg_reqst;
-
-		__swab64s(&req->dbg_rpyid);
-		__swab32s(&req->dbg_flags);
-		sfw_unpack_sid(req->dbg_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_DEBUG_REPLY) {
-		srpc_debug_reply_t *rep = &msg->msg_body.dbg_reply;
-
-		__swab32s(&rep->dbg_nbatch);
-		__swab32s(&rep->dbg_timeout);
-		sfw_unpack_sid(rep->dbg_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_BATCH_REQST) {
-		srpc_batch_reqst_t *req = &msg->msg_body.bat_reqst;
-
-		__swab32s(&req->bar_opc);
-		__swab64s(&req->bar_rpyid);
-		__swab32s(&req->bar_testidx);
-		__swab32s(&req->bar_arg);
-		sfw_unpack_sid(req->bar_sid);
-		__swab64s(&req->bar_bid.bat_id);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_BATCH_REPLY) {
-		srpc_batch_reply_t *rep = &msg->msg_body.bat_reply;
-
-		__swab32s(&rep->bar_status);
-		sfw_unpack_sid(rep->bar_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_TEST_REQST) {
-		srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
-
-		__swab64s(&req->tsr_rpyid);
-		__swab64s(&req->tsr_bulkid);
-		__swab32s(&req->tsr_loop);
-		__swab32s(&req->tsr_ndest);
-		__swab32s(&req->tsr_concur);
-		__swab32s(&req->tsr_service);
-		sfw_unpack_sid(req->tsr_sid);
-		__swab64s(&req->tsr_bid.bat_id);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_TEST_REPLY) {
-		srpc_test_reply_t *rep = &msg->msg_body.tes_reply;
-
-		__swab32s(&rep->tsr_status);
-		sfw_unpack_sid(rep->tsr_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_JOIN_REQST) {
-		srpc_join_reqst_t *req = &msg->msg_body.join_reqst;
-
-		__swab64s(&req->join_rpyid);
-		sfw_unpack_sid(req->join_sid);
-		return;
-	}
-
-	if (msg->msg_type == SRPC_MSG_JOIN_REPLY) {
-		srpc_join_reply_t *rep = &msg->msg_body.join_reply;
-
-		__swab32s(&rep->join_status);
-		__swab32s(&rep->join_timeout);
-		sfw_unpack_sid(rep->join_sid);
-		return;
-	}
-
-	LBUG();
-	return;
-}
-
-void
-sfw_abort_rpc(srpc_client_rpc_t *rpc)
-{
-	LASSERT(atomic_read(&rpc->crpc_refcount) > 0);
-	LASSERT(rpc->crpc_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
-
-	spin_lock(&rpc->crpc_lock);
-	srpc_abort_rpc(rpc, -EINTR);
-	spin_unlock(&rpc->crpc_lock);
-	return;
-}
-
-void
-sfw_post_rpc(srpc_client_rpc_t *rpc)
-{
-	spin_lock(&rpc->crpc_lock);
-
-	LASSERT(!rpc->crpc_closed);
-	LASSERT(!rpc->crpc_aborted);
-	LASSERT(list_empty(&rpc->crpc_list));
-	LASSERT(!sfw_data.fw_shuttingdown);
-
-	rpc->crpc_timeout = rpc_timeout;
-	srpc_post_rpc(rpc);
-
-	spin_unlock(&rpc->crpc_lock);
-	return;
-}
-
-static srpc_service_t sfw_services[] = {
-	{
-		/* sv_id */    SRPC_SERVICE_DEBUG,
-		/* sv_name */  "debug",
-		0
-	},
-	{
-		/* sv_id */    SRPC_SERVICE_QUERY_STAT,
-		/* sv_name */  "query stats",
-		0
-	},
-	{
-		/* sv_id */    SRPC_SERVICE_MAKE_SESSION,
-		/* sv_name */  "make session",
-		0
-	},
-	{
-		/* sv_id */    SRPC_SERVICE_REMOVE_SESSION,
-		/* sv_name */  "remove session",
-		0
-	},
-	{
-		/* sv_id */    SRPC_SERVICE_BATCH,
-		/* sv_name */  "batch service",
-		0
-	},
-	{
-		/* sv_id */    SRPC_SERVICE_TEST,
-		/* sv_name */  "test service",
-		0
-	},
-	{
-		/* sv_id */    0,
-		/* sv_name */  NULL,
-		0
-	}
-};
-
-extern sfw_test_client_ops_t ping_test_client;
-extern srpc_service_t	ping_test_service;
-extern void ping_init_test_client(void);
-extern void ping_init_test_service(void);
-
-extern sfw_test_client_ops_t brw_test_client;
-extern srpc_service_t	brw_test_service;
-extern void brw_init_test_client(void);
-extern void brw_init_test_service(void);
-
-
-int
-sfw_startup(void)
-{
-	int i;
-	int rc;
-	int error;
-	srpc_service_t *sv;
-	sfw_test_case_t *tsc;
-
-
-	if (session_timeout < 0) {
-		CERROR("Session timeout must be non-negative: %d\n",
-			session_timeout);
-		return -EINVAL;
-	}
-
-	if (rpc_timeout < 0) {
-		CERROR("RPC timeout must be non-negative: %d\n",
-			rpc_timeout);
-		return -EINVAL;
-	}
-
-	if (session_timeout == 0)
-		CWARN("Zero session_timeout specified - test sessions never expire.\n");
-
-	if (rpc_timeout == 0)
-		CWARN("Zero rpc_timeout specified - test RPC never expire.\n");
-
-	memset(&sfw_data, 0, sizeof(struct smoketest_framework));
-
-	sfw_data.fw_session     = NULL;
-	sfw_data.fw_active_srpc = NULL;
-	spin_lock_init(&sfw_data.fw_lock);
-	atomic_set(&sfw_data.fw_nzombies, 0);
-	INIT_LIST_HEAD(&sfw_data.fw_tests);
-	INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
-	INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
-
-	brw_init_test_client();
-	brw_init_test_service();
-	rc = sfw_register_test(&brw_test_service, &brw_test_client);
-	LASSERT(rc == 0);
-
-	ping_init_test_client();
-	ping_init_test_service();
-	rc = sfw_register_test(&ping_test_service, &ping_test_client);
-	LASSERT(rc == 0);
-
-	error = 0;
-	list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) {
-		sv = tsc->tsc_srv_service;
-
-		rc = srpc_add_service(sv);
-		LASSERT(rc != -EBUSY);
-		if (rc != 0) {
-			CWARN("Failed to add %s service: %d\n",
-			       sv->sv_name, rc);
-			error = rc;
-		}
-	}
-
-	for (i = 0; ; i++) {
-		sv = &sfw_services[i];
-		if (sv->sv_name == NULL)
-			break;
-
-		sv->sv_bulk_ready = NULL;
-		sv->sv_handler    = sfw_handle_server_rpc;
-		sv->sv_wi_total   = SFW_FRWK_WI_MAX;
-		if (sv->sv_id == SRPC_SERVICE_TEST)
-			sv->sv_bulk_ready = sfw_bulk_ready;
-
-		rc = srpc_add_service(sv);
-		LASSERT(rc != -EBUSY);
-		if (rc != 0) {
-			CWARN("Failed to add %s service: %d\n",
-			       sv->sv_name, rc);
-			error = rc;
-		}
-
-		/* about to sfw_shutdown, no need to add buffer */
-		if (error)
-			continue;
-
-		rc = srpc_service_add_buffers(sv, sv->sv_wi_total);
-		if (rc != 0) {
-			CWARN("Failed to reserve enough buffers: service %s, %d needed: %d\n",
-			      sv->sv_name, sv->sv_wi_total, rc);
-			error = -ENOMEM;
-		}
-	}
-
-	if (error != 0)
-		sfw_shutdown();
-	return error;
-}
-
-void
-sfw_shutdown(void)
-{
-	srpc_service_t *sv;
-	sfw_test_case_t	*tsc;
-	int i;
-
-	spin_lock(&sfw_data.fw_lock);
-
-	sfw_data.fw_shuttingdown = 1;
-	lst_wait_until(sfw_data.fw_active_srpc == NULL, sfw_data.fw_lock,
-		       "waiting for active RPC to finish.\n");
-
-	if (sfw_del_session_timer() != 0)
-		lst_wait_until(sfw_data.fw_session == NULL, sfw_data.fw_lock,
-			       "waiting for session timer to explode.\n");
-
-	sfw_deactivate_session();
-	lst_wait_until(atomic_read(&sfw_data.fw_nzombies) == 0,
-		       sfw_data.fw_lock,
-		       "waiting for %d zombie sessions to die.\n",
-		       atomic_read(&sfw_data.fw_nzombies));
-
-	spin_unlock(&sfw_data.fw_lock);
-
-	for (i = 0; ; i++) {
-		sv = &sfw_services[i];
-		if (sv->sv_name == NULL)
-			break;
-
-		srpc_shutdown_service(sv);
-		srpc_remove_service(sv);
-	}
-
-	list_for_each_entry(tsc, &sfw_data.fw_tests, tsc_list) {
-		sv = tsc->tsc_srv_service;
-		srpc_shutdown_service(sv);
-		srpc_remove_service(sv);
-	}
-
-	while (!list_empty(&sfw_data.fw_zombie_rpcs)) {
-		srpc_client_rpc_t *rpc;
-
-		rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
-				     srpc_client_rpc_t, crpc_list);
-		list_del(&rpc->crpc_list);
-
-		LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
-	}
-
-	for (i = 0; ; i++) {
-		sv = &sfw_services[i];
-		if (sv->sv_name == NULL)
-			break;
-
-		srpc_wait_service_shutdown(sv);
-	}
-
-	while (!list_empty(&sfw_data.fw_tests)) {
-		tsc = list_entry(sfw_data.fw_tests.next,
-				     sfw_test_case_t, tsc_list);
-
-		srpc_wait_service_shutdown(tsc->tsc_srv_service);
-
-		list_del(&tsc->tsc_list);
-		LIBCFS_FREE(tsc, sizeof(*tsc));
-	}
-
-	return;
-}
diff --git a/drivers/staging/lustre/lnet/selftest/module.c b/drivers/staging/lustre/lnet/selftest/module.c
deleted file mode 100644
index 09b8f4649796..000000000000
--- a/drivers/staging/lustre/lnet/selftest/module.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "selftest.h"
-
-enum {
-	LST_INIT_NONE = 0,
-	LST_INIT_WI_SERIAL,
-	LST_INIT_WI_TEST,
-	LST_INIT_RPC,
-	LST_INIT_FW,
-	LST_INIT_CONSOLE
-};
-
-extern int lstcon_console_init(void);
-extern int lstcon_console_fini(void);
-
-static int lst_init_step = LST_INIT_NONE;
-
-struct cfs_wi_sched *lst_sched_serial;
-struct cfs_wi_sched **lst_sched_test;
-
-static void
-lnet_selftest_fini(void)
-{
-	int i;
-
-	switch (lst_init_step) {
-	case LST_INIT_CONSOLE:
-		lstcon_console_fini();
-	case LST_INIT_FW:
-		sfw_shutdown();
-	case LST_INIT_RPC:
-		srpc_shutdown();
-	case LST_INIT_WI_TEST:
-		for (i = 0;
-		     i < cfs_cpt_number(lnet_cpt_table()); i++) {
-			if (lst_sched_test[i] == NULL)
-				continue;
-			cfs_wi_sched_destroy(lst_sched_test[i]);
-		}
-		LIBCFS_FREE(lst_sched_test,
-			    sizeof(lst_sched_test[0]) *
-			    cfs_cpt_number(lnet_cpt_table()));
-		lst_sched_test = NULL;
-
-	case LST_INIT_WI_SERIAL:
-		cfs_wi_sched_destroy(lst_sched_serial);
-		lst_sched_serial = NULL;
-	case LST_INIT_NONE:
-		break;
-	default:
-		LBUG();
-	}
-}
-
-static int
-lnet_selftest_init(void)
-{
-	int nscheds;
-	int rc;
-	int i;
-
-	rc = cfs_wi_sched_create("lst_s", lnet_cpt_table(), CFS_CPT_ANY,
-				 1, &lst_sched_serial);
-	if (rc != 0) {
-		CERROR("Failed to create serial WI scheduler for LST\n");
-		return rc;
-	}
-	lst_init_step = LST_INIT_WI_SERIAL;
-
-	nscheds = cfs_cpt_number(lnet_cpt_table());
-	LIBCFS_ALLOC(lst_sched_test, sizeof(lst_sched_test[0]) * nscheds);
-	if (lst_sched_test == NULL)
-		goto error;
-
-	lst_init_step = LST_INIT_WI_TEST;
-	for (i = 0; i < nscheds; i++) {
-		int nthrs = cfs_cpt_weight(lnet_cpt_table(), i);
-
-		/* reserve at least one CPU for LND */
-		nthrs = max(nthrs - 1, 1);
-		rc = cfs_wi_sched_create("lst_t", lnet_cpt_table(), i,
-					 nthrs, &lst_sched_test[i]);
-		if (rc != 0) {
-			CERROR("Failed to create CPT affinity WI scheduler %d for LST\n",
-			       i);
-			goto error;
-		}
-	}
-
-	rc = srpc_startup();
-	if (rc != 0) {
-		CERROR("LST can't startup rpc\n");
-		goto error;
-	}
-	lst_init_step = LST_INIT_RPC;
-
-	rc = sfw_startup();
-	if (rc != 0) {
-		CERROR("LST can't startup framework\n");
-		goto error;
-	}
-	lst_init_step = LST_INIT_FW;
-
-	rc = lstcon_console_init();
-	if (rc != 0) {
-		CERROR("LST can't startup console\n");
-		goto error;
-	}
-	lst_init_step = LST_INIT_CONSOLE;
-	return 0;
-error:
-	lnet_selftest_fini();
-	return rc;
-}
-
-
-MODULE_DESCRIPTION("LNet Selftest");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("0.9.0");
-
-module_init(lnet_selftest_init);
-module_exit(lnet_selftest_fini);
diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
deleted file mode 100644
index 1dab9984c58e..000000000000
--- a/drivers/staging/lustre/lnet/selftest/ping_test.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/conctl.c
- *
- * Test client & Server
- *
- * Author: Liang Zhen <liangzhen@clusterfs.com>
- */
-
-#include "selftest.h"
-
-#define LST_PING_TEST_MAGIC     0xbabeface
-
-static int ping_srv_workitems = SFW_TEST_WI_MAX;
-module_param(ping_srv_workitems, int, 0644);
-MODULE_PARM_DESC(ping_srv_workitems, "# PING server workitems");
-
-typedef struct {
-	spinlock_t	pnd_lock;	/* serialize */
-	int		pnd_counter;	/* sequence counter */
-} lst_ping_data_t;
-
-static lst_ping_data_t  lst_ping_data;
-
-static int
-ping_client_init(sfw_test_instance_t *tsi)
-{
-	sfw_session_t *sn = tsi->tsi_batch->bat_session;
-
-	LASSERT(tsi->tsi_is_client);
-	LASSERT(sn != NULL && (sn->sn_features & ~LST_FEATS_MASK) == 0);
-
-	spin_lock_init(&lst_ping_data.pnd_lock);
-	lst_ping_data.pnd_counter = 0;
-
-	return 0;
-}
-
-static void
-ping_client_fini(sfw_test_instance_t *tsi)
-{
-	sfw_session_t *sn = tsi->tsi_batch->bat_session;
-	int errors;
-
-	LASSERT(sn != NULL);
-	LASSERT(tsi->tsi_is_client);
-
-	errors = atomic_read(&sn->sn_ping_errors);
-	if (errors)
-		CWARN("%d pings have failed.\n", errors);
-	else
-		CDEBUG(D_NET, "Ping test finished OK.\n");
-}
-
-static int
-ping_client_prep_rpc(sfw_test_unit_t *tsu,
-		     lnet_process_id_t dest, srpc_client_rpc_t **rpc)
-{
-	srpc_ping_reqst_t *req;
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-	sfw_session_t *sn = tsi->tsi_batch->bat_session;
-	struct timeval tv;
-	int rc;
-
-	LASSERT(sn != NULL);
-	LASSERT((sn->sn_features & ~LST_FEATS_MASK) == 0);
-
-	rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, 0, 0, rpc);
-	if (rc != 0)
-		return rc;
-
-	req = &(*rpc)->crpc_reqstmsg.msg_body.ping_reqst;
-
-	req->pnr_magic = LST_PING_TEST_MAGIC;
-
-	spin_lock(&lst_ping_data.pnd_lock);
-	req->pnr_seq = lst_ping_data.pnd_counter++;
-	spin_unlock(&lst_ping_data.pnd_lock);
-
-	cfs_fs_timeval(&tv);
-	req->pnr_time_sec  = tv.tv_sec;
-	req->pnr_time_usec = tv.tv_usec;
-
-	return rc;
-}
-
-static void
-ping_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
-{
-	sfw_test_instance_t *tsi = tsu->tsu_instance;
-	sfw_session_t *sn = tsi->tsi_batch->bat_session;
-	srpc_ping_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst;
-	srpc_ping_reply_t *reply = &rpc->crpc_replymsg.msg_body.ping_reply;
-	struct timeval tv;
-
-	LASSERT(sn != NULL);
-
-	if (rpc->crpc_status != 0) {
-		if (!tsi->tsi_stopping) /* rpc could have been aborted */
-			atomic_inc(&sn->sn_ping_errors);
-		CERROR("Unable to ping %s (%d): %d\n",
-			libcfs_id2str(rpc->crpc_dest),
-			reqst->pnr_seq, rpc->crpc_status);
-		return;
-	}
-
-	if (rpc->crpc_replymsg.msg_magic != SRPC_MSG_MAGIC) {
-		__swab32s(&reply->pnr_seq);
-		__swab32s(&reply->pnr_magic);
-		__swab32s(&reply->pnr_status);
-	}
-
-	if (reply->pnr_magic != LST_PING_TEST_MAGIC) {
-		rpc->crpc_status = -EBADMSG;
-		atomic_inc(&sn->sn_ping_errors);
-		CERROR("Bad magic %u from %s, %u expected.\n",
-			reply->pnr_magic, libcfs_id2str(rpc->crpc_dest),
-			LST_PING_TEST_MAGIC);
-		return;
-	}
-
-	if (reply->pnr_seq != reqst->pnr_seq) {
-		rpc->crpc_status = -EBADMSG;
-		atomic_inc(&sn->sn_ping_errors);
-		CERROR("Bad seq %u from %s, %u expected.\n",
-			reply->pnr_seq, libcfs_id2str(rpc->crpc_dest),
-			reqst->pnr_seq);
-		return;
-	}
-
-	cfs_fs_timeval(&tv);
-	CDEBUG(D_NET, "%d reply in %u usec\n", reply->pnr_seq,
-		(unsigned)((tv.tv_sec - (unsigned)reqst->pnr_time_sec) * 1000000
-			   + (tv.tv_usec - reqst->pnr_time_usec)));
-	return;
-}
-
-static int
-ping_server_handle(struct srpc_server_rpc *rpc)
-{
-	struct srpc_service *sv  = rpc->srpc_scd->scd_svc;
-	srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
-	srpc_msg_t *replymsg = &rpc->srpc_replymsg;
-	srpc_ping_reqst_t *req = &reqstmsg->msg_body.ping_reqst;
-	srpc_ping_reply_t *rep = &rpc->srpc_replymsg.msg_body.ping_reply;
-
-	LASSERT(sv->sv_id == SRPC_SERVICE_PING);
-
-	if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
-		LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
-
-		__swab32s(&req->pnr_seq);
-		__swab32s(&req->pnr_magic);
-		__swab64s(&req->pnr_time_sec);
-		__swab64s(&req->pnr_time_usec);
-	}
-	LASSERT(reqstmsg->msg_type == srpc_service2request(sv->sv_id));
-
-	if (req->pnr_magic != LST_PING_TEST_MAGIC) {
-		CERROR("Unexpected magic %08x from %s\n",
-			req->pnr_magic, libcfs_id2str(rpc->srpc_peer));
-		return -EINVAL;
-	}
-
-	rep->pnr_seq   = req->pnr_seq;
-	rep->pnr_magic = LST_PING_TEST_MAGIC;
-
-	if ((reqstmsg->msg_ses_feats & ~LST_FEATS_MASK) != 0) {
-		replymsg->msg_ses_feats = LST_FEATS_MASK;
-		rep->pnr_status = EPROTO;
-		return 0;
-	}
-
-	replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
-
-	CDEBUG(D_NET, "Get ping %d from %s\n",
-	       req->pnr_seq, libcfs_id2str(rpc->srpc_peer));
-	return 0;
-}
-
-sfw_test_client_ops_t ping_test_client;
-void ping_init_test_client(void)
-{
-	ping_test_client.tso_init     = ping_client_init;
-	ping_test_client.tso_fini     = ping_client_fini;
-	ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
-	ping_test_client.tso_done_rpc = ping_client_done_rpc;
-}
-
-srpc_service_t ping_test_service;
-void ping_init_test_service(void)
-{
-	ping_test_service.sv_id       = SRPC_SERVICE_PING;
-	ping_test_service.sv_name     = "ping_test";
-	ping_test_service.sv_handler  = ping_server_handle;
-	ping_test_service.sv_wi_total = ping_srv_workitems;
-}
diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c
deleted file mode 100644
index 6ae133138b17..000000000000
--- a/drivers/staging/lustre/lnet/selftest/rpc.c
+++ /dev/null
@@ -1,1673 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/rpc.c
- *
- * Author: Isaac Huang <isaac@clusterfs.com>
- *
- * 2012-05-13: Liang Zhen <liang@whamcloud.com>
- * - percpt data for service to improve smp performance
- * - code cleanup
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "selftest.h"
-
-typedef enum {
-	SRPC_STATE_NONE,
-	SRPC_STATE_NI_INIT,
-	SRPC_STATE_EQ_INIT,
-	SRPC_STATE_RUNNING,
-	SRPC_STATE_STOPPING,
-} srpc_state_t;
-
-static struct smoketest_rpc {
-	spinlock_t	 rpc_glock;	/* global lock */
-	srpc_service_t	*rpc_services[SRPC_SERVICE_MAX_ID + 1];
-	lnet_handle_eq_t rpc_lnet_eq;	/* _the_ LNet event queue */
-	srpc_state_t	 rpc_state;
-	srpc_counters_t	 rpc_counters;
-	__u64		 rpc_matchbits;	/* matchbits counter */
-} srpc_data;
-
-static inline int
-srpc_serv_portal(int svc_id)
-{
-	return svc_id < SRPC_FRAMEWORK_SERVICE_MAX_ID ?
-	       SRPC_FRAMEWORK_REQUEST_PORTAL : SRPC_REQUEST_PORTAL;
-}
-
-/* forward ref's */
-int srpc_handle_rpc(swi_workitem_t *wi);
-
-void srpc_get_counters(srpc_counters_t *cnt)
-{
-	spin_lock(&srpc_data.rpc_glock);
-	*cnt = srpc_data.rpc_counters;
-	spin_unlock(&srpc_data.rpc_glock);
-}
-
-void srpc_set_counters(const srpc_counters_t *cnt)
-{
-	spin_lock(&srpc_data.rpc_glock);
-	srpc_data.rpc_counters = *cnt;
-	spin_unlock(&srpc_data.rpc_glock);
-}
-
-static int
-srpc_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i, int nob)
-{
-	nob = min_t(int, nob, PAGE_CACHE_SIZE);
-
-	LASSERT(nob > 0);
-	LASSERT(i >= 0 && i < bk->bk_niov);
-
-	bk->bk_iovs[i].kiov_offset = 0;
-	bk->bk_iovs[i].kiov_page   = pg;
-	bk->bk_iovs[i].kiov_len    = nob;
-	return nob;
-}
-
-void
-srpc_free_bulk(srpc_bulk_t *bk)
-{
-	int i;
-	struct page *pg;
-
-	LASSERT(bk != NULL);
-
-	for (i = 0; i < bk->bk_niov; i++) {
-		pg = bk->bk_iovs[i].kiov_page;
-		if (pg == NULL)
-			break;
-
-		__free_page(pg);
-	}
-
-	LIBCFS_FREE(bk, offsetof(srpc_bulk_t, bk_iovs[bk->bk_niov]));
-	return;
-}
-
-srpc_bulk_t *
-srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len, int sink)
-{
-	srpc_bulk_t *bk;
-	int i;
-
-	LASSERT(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV);
-
-	LIBCFS_CPT_ALLOC(bk, lnet_cpt_table(), cpt,
-			 offsetof(srpc_bulk_t, bk_iovs[bulk_npg]));
-	if (bk == NULL) {
-		CERROR("Can't allocate descriptor for %d pages\n", bulk_npg);
-		return NULL;
-	}
-
-	memset(bk, 0, offsetof(srpc_bulk_t, bk_iovs[bulk_npg]));
-	bk->bk_sink   = sink;
-	bk->bk_len    = bulk_len;
-	bk->bk_niov   = bulk_npg;
-
-	for (i = 0; i < bulk_npg; i++) {
-		struct page *pg;
-		int nob;
-
-		pg = alloc_pages_node(cfs_cpt_spread_node(lnet_cpt_table(), cpt),
-				      GFP_IOFS, 0);
-		if (pg == NULL) {
-			CERROR("Can't allocate page %d of %d\n", i, bulk_npg);
-			srpc_free_bulk(bk);
-			return NULL;
-		}
-
-		nob = srpc_add_bulk_page(bk, pg, i, bulk_len);
-		bulk_len -= nob;
-	}
-
-	return bk;
-}
-
-static inline __u64
-srpc_next_id(void)
-{
-	__u64 id;
-
-	spin_lock(&srpc_data.rpc_glock);
-	id = srpc_data.rpc_matchbits++;
-	spin_unlock(&srpc_data.rpc_glock);
-	return id;
-}
-
-static void
-srpc_init_server_rpc(struct srpc_server_rpc *rpc,
-		     struct srpc_service_cd *scd,
-		     struct srpc_buffer *buffer)
-{
-	memset(rpc, 0, sizeof(*rpc));
-	swi_init_workitem(&rpc->srpc_wi, rpc, srpc_handle_rpc,
-			  srpc_serv_is_framework(scd->scd_svc) ?
-			  lst_sched_serial : lst_sched_test[scd->scd_cpt]);
-
-	rpc->srpc_ev.ev_fired = 1; /* no event expected now */
-
-	rpc->srpc_scd      = scd;
-	rpc->srpc_reqstbuf = buffer;
-	rpc->srpc_peer     = buffer->buf_peer;
-	rpc->srpc_self     = buffer->buf_self;
-	LNetInvalidateHandle(&rpc->srpc_replymdh);
-}
-
-static void
-srpc_service_fini(struct srpc_service *svc)
-{
-	struct srpc_service_cd *scd;
-	struct srpc_server_rpc *rpc;
-	struct srpc_buffer *buf;
-	struct list_head *q;
-	int i;
-
-	if (svc->sv_cpt_data == NULL)
-		return;
-
-	cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
-		while (1) {
-			if (!list_empty(&scd->scd_buf_posted))
-				q = &scd->scd_buf_posted;
-			else if (!list_empty(&scd->scd_buf_blocked))
-				q = &scd->scd_buf_blocked;
-			else
-				break;
-
-			while (!list_empty(q)) {
-				buf = list_entry(q->next,
-						     struct srpc_buffer,
-						     buf_list);
-				list_del(&buf->buf_list);
-				LIBCFS_FREE(buf, sizeof(*buf));
-			}
-		}
-
-		LASSERT(list_empty(&scd->scd_rpc_active));
-
-		while (!list_empty(&scd->scd_rpc_free)) {
-			rpc = list_entry(scd->scd_rpc_free.next,
-					     struct srpc_server_rpc,
-					     srpc_list);
-			list_del(&rpc->srpc_list);
-			LIBCFS_FREE(rpc, sizeof(*rpc));
-		}
-	}
-
-	cfs_percpt_free(svc->sv_cpt_data);
-	svc->sv_cpt_data = NULL;
-}
-
-static int
-srpc_service_nrpcs(struct srpc_service *svc)
-{
-	int nrpcs = svc->sv_wi_total / svc->sv_ncpts;
-
-	return srpc_serv_is_framework(svc) ?
-	       max(nrpcs, SFW_FRWK_WI_MIN) : max(nrpcs, SFW_TEST_WI_MIN);
-}
-
-int srpc_add_buffer(struct swi_workitem *wi);
-
-static int
-srpc_service_init(struct srpc_service *svc)
-{
-	struct srpc_service_cd *scd;
-	struct srpc_server_rpc *rpc;
-	int nrpcs;
-	int i;
-	int j;
-
-	svc->sv_shuttingdown = 0;
-
-	svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(),
-					    sizeof(struct srpc_service_cd));
-	if (svc->sv_cpt_data == NULL)
-		return -ENOMEM;
-
-	svc->sv_ncpts = srpc_serv_is_framework(svc) ?
-			1 : cfs_cpt_number(lnet_cpt_table());
-	nrpcs = srpc_service_nrpcs(svc);
-
-	cfs_percpt_for_each(scd, i, svc->sv_cpt_data) {
-		scd->scd_cpt = i;
-		scd->scd_svc = svc;
-		spin_lock_init(&scd->scd_lock);
-		INIT_LIST_HEAD(&scd->scd_rpc_free);
-		INIT_LIST_HEAD(&scd->scd_rpc_active);
-		INIT_LIST_HEAD(&scd->scd_buf_posted);
-		INIT_LIST_HEAD(&scd->scd_buf_blocked);
-
-		scd->scd_ev.ev_data = scd;
-		scd->scd_ev.ev_type = SRPC_REQUEST_RCVD;
-
-		/* NB: don't use lst_sched_serial for adding buffer,
-		 * see details in srpc_service_add_buffers() */
-		swi_init_workitem(&scd->scd_buf_wi, scd,
-				  srpc_add_buffer, lst_sched_test[i]);
-
-		if (i != 0 && srpc_serv_is_framework(svc)) {
-			/* NB: framework service only needs srpc_service_cd for
-			 * one partition, but we allocate for all to make
-			 * it easier to implement, it will waste a little
-			 * memory but nobody should care about this */
-			continue;
-		}
-
-		for (j = 0; j < nrpcs; j++) {
-			LIBCFS_CPT_ALLOC(rpc, lnet_cpt_table(),
-					 i, sizeof(*rpc));
-			if (rpc == NULL) {
-				srpc_service_fini(svc);
-				return -ENOMEM;
-			}
-			list_add(&rpc->srpc_list, &scd->scd_rpc_free);
-		}
-	}
-
-	return 0;
-}
-
-int
-srpc_add_service(struct srpc_service *sv)
-{
-	int id = sv->sv_id;
-
-	LASSERT(0 <= id && id <= SRPC_SERVICE_MAX_ID);
-
-	if (srpc_service_init(sv) != 0)
-		return -ENOMEM;
-
-	spin_lock(&srpc_data.rpc_glock);
-
-	LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
-
-	if (srpc_data.rpc_services[id] != NULL) {
-		spin_unlock(&srpc_data.rpc_glock);
-		goto failed;
-	}
-
-	srpc_data.rpc_services[id] = sv;
-	spin_unlock(&srpc_data.rpc_glock);
-
-	CDEBUG(D_NET, "Adding service: id %d, name %s\n", id, sv->sv_name);
-	return 0;
-
- failed:
-	srpc_service_fini(sv);
-	return -EBUSY;
-}
-
-int
-srpc_remove_service(srpc_service_t *sv)
-{
-	int id = sv->sv_id;
-
-	spin_lock(&srpc_data.rpc_glock);
-
-	if (srpc_data.rpc_services[id] != sv) {
-		spin_unlock(&srpc_data.rpc_glock);
-		return -ENOENT;
-	}
-
-	srpc_data.rpc_services[id] = NULL;
-	spin_unlock(&srpc_data.rpc_glock);
-	return 0;
-}
-
-static int
-srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf,
-		       int len, int options, lnet_process_id_t peer,
-		       lnet_handle_md_t *mdh, srpc_event_t *ev)
-{
-	int rc;
-	lnet_md_t md;
-	lnet_handle_me_t meh;
-
-	rc = LNetMEAttach(portal, peer, matchbits, 0, LNET_UNLINK,
-			  local ? LNET_INS_LOCAL : LNET_INS_AFTER, &meh);
-	if (rc != 0) {
-		CERROR("LNetMEAttach failed: %d\n", rc);
-		LASSERT(rc == -ENOMEM);
-		return -ENOMEM;
-	}
-
-	md.threshold = 1;
-	md.user_ptr  = ev;
-	md.start     = buf;
-	md.length    = len;
-	md.options   = options;
-	md.eq_handle = srpc_data.rpc_lnet_eq;
-
-	rc = LNetMDAttach(meh, md, LNET_UNLINK, mdh);
-	if (rc != 0) {
-		CERROR("LNetMDAttach failed: %d\n", rc);
-		LASSERT(rc == -ENOMEM);
-
-		rc = LNetMEUnlink(meh);
-		LASSERT(rc == 0);
-		return -ENOMEM;
-	}
-
-	CDEBUG(D_NET,
-		"Posted passive RDMA: peer %s, portal %d, matchbits %#llx\n",
-		libcfs_id2str(peer), portal, matchbits);
-	return 0;
-}
-
-static int
-srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len,
-		      int options, lnet_process_id_t peer, lnet_nid_t self,
-		      lnet_handle_md_t *mdh, srpc_event_t *ev)
-{
-	int rc;
-	lnet_md_t md;
-
-	md.user_ptr  = ev;
-	md.start     = buf;
-	md.length    = len;
-	md.eq_handle = srpc_data.rpc_lnet_eq;
-	md.threshold = ((options & LNET_MD_OP_GET) != 0) ? 2 : 1;
-	md.options   = options & ~(LNET_MD_OP_PUT | LNET_MD_OP_GET);
-
-	rc = LNetMDBind(md, LNET_UNLINK, mdh);
-	if (rc != 0) {
-		CERROR("LNetMDBind failed: %d\n", rc);
-		LASSERT(rc == -ENOMEM);
-		return -ENOMEM;
-	}
-
-	/* this is kind of an abuse of the LNET_MD_OP_{PUT,GET} options.
-	 * they're only meaningful for MDs attached to an ME (i.e. passive
-	 * buffers... */
-	if ((options & LNET_MD_OP_PUT) != 0) {
-		rc = LNetPut(self, *mdh, LNET_NOACK_REQ, peer,
-			     portal, matchbits, 0, 0);
-	} else {
-		LASSERT((options & LNET_MD_OP_GET) != 0);
-
-		rc = LNetGet(self, *mdh, peer, portal, matchbits, 0);
-	}
-
-	if (rc != 0) {
-		CERROR("LNet%s(%s, %d, %lld) failed: %d\n",
-			((options & LNET_MD_OP_PUT) != 0) ? "Put" : "Get",
-			libcfs_id2str(peer), portal, matchbits, rc);
-
-		/* The forthcoming unlink event will complete this operation
-		 * with failure, so fall through and return success here.
-		 */
-		rc = LNetMDUnlink(*mdh);
-		LASSERT(rc == 0);
-	} else {
-		CDEBUG(D_NET,
-			"Posted active RDMA: peer %s, portal %u, matchbits %#llx\n",
-			libcfs_id2str(peer), portal, matchbits);
-	}
-	return 0;
-}
-
-static int
-srpc_post_active_rqtbuf(lnet_process_id_t peer, int service, void *buf,
-			int len, lnet_handle_md_t *mdh, srpc_event_t *ev)
-{
-	return srpc_post_active_rdma(srpc_serv_portal(service), service,
-				     buf, len, LNET_MD_OP_PUT, peer,
-				     LNET_NID_ANY, mdh, ev);
-}
-
-static int
-srpc_post_passive_rqtbuf(int service, int local, void *buf, int len,
-			 lnet_handle_md_t *mdh, srpc_event_t *ev)
-{
-	lnet_process_id_t any = {0};
-
-	any.nid = LNET_NID_ANY;
-	any.pid = LNET_PID_ANY;
-
-	return srpc_post_passive_rdma(srpc_serv_portal(service),
-				      local, service, buf, len,
-				      LNET_MD_OP_PUT, any, mdh, ev);
-}
-
-static int
-srpc_service_post_buffer(struct srpc_service_cd *scd, struct srpc_buffer *buf)
-	__must_hold(&scd->scd_lock)
-{
-	struct srpc_service *sv = scd->scd_svc;
-	struct srpc_msg *msg = &buf->buf_msg;
-	int rc;
-
-	LNetInvalidateHandle(&buf->buf_mdh);
-	list_add(&buf->buf_list, &scd->scd_buf_posted);
-	scd->scd_buf_nposted++;
-	spin_unlock(&scd->scd_lock);
-
-	rc = srpc_post_passive_rqtbuf(sv->sv_id,
-				      !srpc_serv_is_framework(sv),
-				      msg, sizeof(*msg), &buf->buf_mdh,
-				      &scd->scd_ev);
-
-	/* At this point, a RPC (new or delayed) may have arrived in
-	 * msg and its event handler has been called. So we must add
-	 * buf to scd_buf_posted _before_ dropping scd_lock */
-
-	spin_lock(&scd->scd_lock);
-
-	if (rc == 0) {
-		if (!sv->sv_shuttingdown)
-			return 0;
-
-		spin_unlock(&scd->scd_lock);
-		/* srpc_shutdown_service might have tried to unlink me
-		 * when my buf_mdh was still invalid */
-		LNetMDUnlink(buf->buf_mdh);
-		spin_lock(&scd->scd_lock);
-		return 0;
-	}
-
-	scd->scd_buf_nposted--;
-	if (sv->sv_shuttingdown)
-		return rc; /* don't allow to change scd_buf_posted */
-
-	list_del(&buf->buf_list);
-	spin_unlock(&scd->scd_lock);
-
-	LIBCFS_FREE(buf, sizeof(*buf));
-
-	spin_lock(&scd->scd_lock);
-	return rc;
-}
-
-int
-srpc_add_buffer(struct swi_workitem *wi)
-{
-	struct srpc_service_cd *scd = wi->swi_workitem.wi_data;
-	struct srpc_buffer *buf;
-	int rc = 0;
-
-	/* it's called by workitem scheduler threads, these threads
-	 * should have been set CPT affinity, so buffers will be posted
-	 * on CPT local list of Portal */
-	spin_lock(&scd->scd_lock);
-
-	while (scd->scd_buf_adjust > 0 &&
-	       !scd->scd_svc->sv_shuttingdown) {
-		scd->scd_buf_adjust--; /* consume it */
-		scd->scd_buf_posting++;
-
-		spin_unlock(&scd->scd_lock);
-
-		LIBCFS_ALLOC(buf, sizeof(*buf));
-		if (buf == NULL) {
-			CERROR("Failed to add new buf to service: %s\n",
-			       scd->scd_svc->sv_name);
-			spin_lock(&scd->scd_lock);
-			rc = -ENOMEM;
-			break;
-		}
-
-		spin_lock(&scd->scd_lock);
-		if (scd->scd_svc->sv_shuttingdown) {
-			spin_unlock(&scd->scd_lock);
-			LIBCFS_FREE(buf, sizeof(*buf));
-
-			spin_lock(&scd->scd_lock);
-			rc = -ESHUTDOWN;
-			break;
-		}
-
-		rc = srpc_service_post_buffer(scd, buf);
-		if (rc != 0)
-			break; /* buf has been freed inside */
-
-		LASSERT(scd->scd_buf_posting > 0);
-		scd->scd_buf_posting--;
-		scd->scd_buf_total++;
-		scd->scd_buf_low = max(2, scd->scd_buf_total / 4);
-	}
-
-	if (rc != 0) {
-		scd->scd_buf_err_stamp = get_seconds();
-		scd->scd_buf_err = rc;
-
-		LASSERT(scd->scd_buf_posting > 0);
-		scd->scd_buf_posting--;
-	}
-
-	spin_unlock(&scd->scd_lock);
-	return 0;
-}
-
-int
-srpc_service_add_buffers(struct srpc_service *sv, int nbuffer)
-{
-	struct srpc_service_cd *scd;
-	int rc = 0;
-	int i;
-
-	LASSERTF(nbuffer > 0, "nbuffer must be positive: %d\n", nbuffer);
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
-		spin_lock(&scd->scd_lock);
-
-		scd->scd_buf_err = 0;
-		scd->scd_buf_err_stamp = 0;
-		scd->scd_buf_posting = 0;
-		scd->scd_buf_adjust = nbuffer;
-		/* start to post buffers */
-		swi_schedule_workitem(&scd->scd_buf_wi);
-		spin_unlock(&scd->scd_lock);
-
-		/* framework service only post buffer for one partition  */
-		if (srpc_serv_is_framework(sv))
-			break;
-	}
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
-		spin_lock(&scd->scd_lock);
-		/*
-		 * NB: srpc_service_add_buffers() can be called inside
-		 * thread context of lst_sched_serial, and we don't normally
-		 * allow to sleep inside thread context of WI scheduler
-		 * because it will block current scheduler thread from doing
-		 * anything else, even worse, it could deadlock if it's
-		 * waiting on result from another WI of the same scheduler.
-		 * However, it's safe at here because scd_buf_wi is scheduled
-		 * by thread in a different WI scheduler (lst_sched_test),
-		 * so we don't have any risk of deadlock, though this could
-		 * block all WIs pending on lst_sched_serial for a moment
-		 * which is not good but not fatal.
-		 */
-		lst_wait_until(scd->scd_buf_err != 0 ||
-			       (scd->scd_buf_adjust == 0 &&
-				scd->scd_buf_posting == 0),
-			       scd->scd_lock, "waiting for adding buffer\n");
-
-		if (scd->scd_buf_err != 0 && rc == 0)
-			rc = scd->scd_buf_err;
-
-		spin_unlock(&scd->scd_lock);
-	}
-
-	return rc;
-}
-
-void
-srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer)
-{
-	struct srpc_service_cd *scd;
-	int num;
-	int i;
-
-	LASSERT(!sv->sv_shuttingdown);
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
-		spin_lock(&scd->scd_lock);
-
-		num = scd->scd_buf_total + scd->scd_buf_posting;
-		scd->scd_buf_adjust -= min(nbuffer, num);
-
-		spin_unlock(&scd->scd_lock);
-	}
-}
-
-/* returns 1 if sv has finished, otherwise 0 */
-int
-srpc_finish_service(struct srpc_service *sv)
-{
-	struct srpc_service_cd *scd;
-	struct srpc_server_rpc *rpc;
-	int i;
-
-	LASSERT(sv->sv_shuttingdown); /* srpc_shutdown_service called */
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
-		spin_lock(&scd->scd_lock);
-		if (!swi_deschedule_workitem(&scd->scd_buf_wi)) {
-			spin_unlock(&scd->scd_lock);
-			return 0;
-		}
-
-		if (scd->scd_buf_nposted > 0) {
-			CDEBUG(D_NET, "waiting for %d posted buffers to unlink",
-			       scd->scd_buf_nposted);
-			spin_unlock(&scd->scd_lock);
-			return 0;
-		}
-
-		if (list_empty(&scd->scd_rpc_active)) {
-			spin_unlock(&scd->scd_lock);
-			continue;
-		}
-
-		rpc = list_entry(scd->scd_rpc_active.next,
-				     struct srpc_server_rpc, srpc_list);
-		CNETERR("Active RPC %p on shutdown: sv %s, peer %s, wi %s scheduled %d running %d, ev fired %d type %d status %d lnet %d\n",
-			rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
-			swi_state2str(rpc->srpc_wi.swi_state),
-			rpc->srpc_wi.swi_workitem.wi_scheduled,
-			rpc->srpc_wi.swi_workitem.wi_running,
-			rpc->srpc_ev.ev_fired, rpc->srpc_ev.ev_type,
-			rpc->srpc_ev.ev_status, rpc->srpc_ev.ev_lnet);
-		spin_unlock(&scd->scd_lock);
-		return 0;
-	}
-
-	/* no lock needed from now on */
-	srpc_service_fini(sv);
-	return 1;
-}
-
-/* called with sv->sv_lock held */
-static void
-srpc_service_recycle_buffer(struct srpc_service_cd *scd, srpc_buffer_t *buf)
-	__must_hold(&scd->scd_lock)
-{
-	if (!scd->scd_svc->sv_shuttingdown && scd->scd_buf_adjust >= 0) {
-		if (srpc_service_post_buffer(scd, buf) != 0) {
-			CWARN("Failed to post %s buffer\n",
-			      scd->scd_svc->sv_name);
-		}
-		return;
-	}
-
-	/* service is shutting down, or we want to recycle some buffers */
-	scd->scd_buf_total--;
-
-	if (scd->scd_buf_adjust < 0) {
-		scd->scd_buf_adjust++;
-		if (scd->scd_buf_adjust < 0 &&
-		    scd->scd_buf_total == 0 && scd->scd_buf_posting == 0) {
-			CDEBUG(D_INFO,
-			       "Try to recycle %d buffers but nothing left\n",
-			       scd->scd_buf_adjust);
-			scd->scd_buf_adjust = 0;
-		}
-	}
-
-	spin_unlock(&scd->scd_lock);
-	LIBCFS_FREE(buf, sizeof(*buf));
-	spin_lock(&scd->scd_lock);
-}
-
-void
-srpc_abort_service(struct srpc_service *sv)
-{
-	struct srpc_service_cd *scd;
-	struct srpc_server_rpc *rpc;
-	int i;
-
-	CDEBUG(D_NET, "Aborting service: id %d, name %s\n",
-	       sv->sv_id, sv->sv_name);
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
-		spin_lock(&scd->scd_lock);
-
-		/* schedule in-flight RPCs to notice the abort, NB:
-		 * racing with incoming RPCs; complete fix should make test
-		 * RPCs carry session ID in its headers */
-		list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list) {
-			rpc->srpc_aborted = 1;
-			swi_schedule_workitem(&rpc->srpc_wi);
-		}
-
-		spin_unlock(&scd->scd_lock);
-	}
-}
-
-void
-srpc_shutdown_service(srpc_service_t *sv)
-{
-	struct srpc_service_cd *scd;
-	struct srpc_server_rpc *rpc;
-	srpc_buffer_t *buf;
-	int i;
-
-	CDEBUG(D_NET, "Shutting down service: id %d, name %s\n",
-	       sv->sv_id, sv->sv_name);
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
-		spin_lock(&scd->scd_lock);
-
-	sv->sv_shuttingdown = 1; /* i.e. no new active RPC */
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data)
-		spin_unlock(&scd->scd_lock);
-
-	cfs_percpt_for_each(scd, i, sv->sv_cpt_data) {
-		spin_lock(&scd->scd_lock);
-
-		/* schedule in-flight RPCs to notice the shutdown */
-		list_for_each_entry(rpc, &scd->scd_rpc_active, srpc_list)
-			swi_schedule_workitem(&rpc->srpc_wi);
-
-		spin_unlock(&scd->scd_lock);
-
-		/* OK to traverse scd_buf_posted without lock, since no one
-		 * touches scd_buf_posted now */
-		list_for_each_entry(buf, &scd->scd_buf_posted, buf_list)
-			LNetMDUnlink(buf->buf_mdh);
-	}
-}
-
-static int
-srpc_send_request(srpc_client_rpc_t *rpc)
-{
-	srpc_event_t *ev = &rpc->crpc_reqstev;
-	int rc;
-
-	ev->ev_fired = 0;
-	ev->ev_data  = rpc;
-	ev->ev_type  = SRPC_REQUEST_SENT;
-
-	rc = srpc_post_active_rqtbuf(rpc->crpc_dest, rpc->crpc_service,
-				     &rpc->crpc_reqstmsg, sizeof(srpc_msg_t),
-				     &rpc->crpc_reqstmdh, ev);
-	if (rc != 0) {
-		LASSERT(rc == -ENOMEM);
-		ev->ev_fired = 1;  /* no more event expected */
-	}
-	return rc;
-}
-
-static int
-srpc_prepare_reply(srpc_client_rpc_t *rpc)
-{
-	srpc_event_t *ev = &rpc->crpc_replyev;
-	__u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid;
-	int rc;
-
-	ev->ev_fired = 0;
-	ev->ev_data  = rpc;
-	ev->ev_type  = SRPC_REPLY_RCVD;
-
-	*id = srpc_next_id();
-
-	rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
-				    &rpc->crpc_replymsg, sizeof(srpc_msg_t),
-				    LNET_MD_OP_PUT, rpc->crpc_dest,
-				    &rpc->crpc_replymdh, ev);
-	if (rc != 0) {
-		LASSERT(rc == -ENOMEM);
-		ev->ev_fired = 1;  /* no more event expected */
-	}
-	return rc;
-}
-
-static int
-srpc_prepare_bulk(srpc_client_rpc_t *rpc)
-{
-	srpc_bulk_t *bk = &rpc->crpc_bulk;
-	srpc_event_t *ev = &rpc->crpc_bulkev;
-	__u64	*id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid;
-	int rc;
-	int opt;
-
-	LASSERT(bk->bk_niov <= LNET_MAX_IOV);
-
-	if (bk->bk_niov == 0)
-		return 0; /* nothing to do */
-
-	opt = bk->bk_sink ? LNET_MD_OP_PUT : LNET_MD_OP_GET;
-	opt |= LNET_MD_KIOV;
-
-	ev->ev_fired = 0;
-	ev->ev_data  = rpc;
-	ev->ev_type  = SRPC_BULK_REQ_RCVD;
-
-	*id = srpc_next_id();
-
-	rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id,
-				    &bk->bk_iovs[0], bk->bk_niov, opt,
-				    rpc->crpc_dest, &bk->bk_mdh, ev);
-	if (rc != 0) {
-		LASSERT(rc == -ENOMEM);
-		ev->ev_fired = 1;  /* no more event expected */
-	}
-	return rc;
-}
-
-static int
-srpc_do_bulk(srpc_server_rpc_t *rpc)
-{
-	srpc_event_t *ev = &rpc->srpc_ev;
-	srpc_bulk_t *bk = rpc->srpc_bulk;
-	__u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid;
-	int rc;
-	int opt;
-
-	LASSERT(bk != NULL);
-
-	opt = bk->bk_sink ? LNET_MD_OP_GET : LNET_MD_OP_PUT;
-	opt |= LNET_MD_KIOV;
-
-	ev->ev_fired = 0;
-	ev->ev_data  = rpc;
-	ev->ev_type  = bk->bk_sink ? SRPC_BULK_GET_RPLD : SRPC_BULK_PUT_SENT;
-
-	rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, id,
-				   &bk->bk_iovs[0], bk->bk_niov, opt,
-				   rpc->srpc_peer, rpc->srpc_self,
-				   &bk->bk_mdh, ev);
-	if (rc != 0)
-		ev->ev_fired = 1;  /* no more event expected */
-	return rc;
-}
-
-/* only called from srpc_handle_rpc */
-static void
-srpc_server_rpc_done(srpc_server_rpc_t *rpc, int status)
-{
-	struct srpc_service_cd *scd = rpc->srpc_scd;
-	struct srpc_service *sv  = scd->scd_svc;
-	srpc_buffer_t *buffer;
-
-	LASSERT(status != 0 || rpc->srpc_wi.swi_state == SWI_STATE_DONE);
-
-	rpc->srpc_status = status;
-
-	CDEBUG_LIMIT(status == 0 ? D_NET : D_NETERROR,
-		"Server RPC %p done: service %s, peer %s, status %s:%d\n",
-		rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer),
-		swi_state2str(rpc->srpc_wi.swi_state), status);
-
-	if (status != 0) {
-		spin_lock(&srpc_data.rpc_glock);
-		srpc_data.rpc_counters.rpcs_dropped++;
-		spin_unlock(&srpc_data.rpc_glock);
-	}
-
-	if (rpc->srpc_done != NULL)
-		(*rpc->srpc_done) (rpc);
-	LASSERT(rpc->srpc_bulk == NULL);
-
-	spin_lock(&scd->scd_lock);
-
-	if (rpc->srpc_reqstbuf != NULL) {
-		/* NB might drop sv_lock in srpc_service_recycle_buffer, but
-		 * sv won't go away for scd_rpc_active must not be empty */
-		srpc_service_recycle_buffer(scd, rpc->srpc_reqstbuf);
-		rpc->srpc_reqstbuf = NULL;
-	}
-
-	list_del(&rpc->srpc_list); /* from scd->scd_rpc_active */
-
-	/*
-	 * No one can schedule me now since:
-	 * - I'm not on scd_rpc_active.
-	 * - all LNet events have been fired.
-	 * Cancel pending schedules and prevent future schedule attempts:
-	 */
-	LASSERT(rpc->srpc_ev.ev_fired);
-	swi_exit_workitem(&rpc->srpc_wi);
-
-	if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) {
-		buffer = list_entry(scd->scd_buf_blocked.next,
-					srpc_buffer_t, buf_list);
-		list_del(&buffer->buf_list);
-
-		srpc_init_server_rpc(rpc, scd, buffer);
-		list_add_tail(&rpc->srpc_list, &scd->scd_rpc_active);
-		swi_schedule_workitem(&rpc->srpc_wi);
-	} else {
-		list_add(&rpc->srpc_list, &scd->scd_rpc_free);
-	}
-
-	spin_unlock(&scd->scd_lock);
-	return;
-}
-
-/* handles an incoming RPC */
-int
-srpc_handle_rpc(swi_workitem_t *wi)
-{
-	struct srpc_server_rpc *rpc = wi->swi_workitem.wi_data;
-	struct srpc_service_cd *scd = rpc->srpc_scd;
-	struct srpc_service *sv = scd->scd_svc;
-	srpc_event_t *ev = &rpc->srpc_ev;
-	int rc = 0;
-
-	LASSERT(wi == &rpc->srpc_wi);
-
-	spin_lock(&scd->scd_lock);
-
-	if (sv->sv_shuttingdown || rpc->srpc_aborted) {
-		spin_unlock(&scd->scd_lock);
-
-		if (rpc->srpc_bulk != NULL)
-			LNetMDUnlink(rpc->srpc_bulk->bk_mdh);
-		LNetMDUnlink(rpc->srpc_replymdh);
-
-		if (ev->ev_fired) { /* no more event, OK to finish */
-			srpc_server_rpc_done(rpc, -ESHUTDOWN);
-			return 1;
-		}
-		return 0;
-	}
-
-	spin_unlock(&scd->scd_lock);
-
-	switch (wi->swi_state) {
-	default:
-		LBUG();
-	case SWI_STATE_NEWBORN: {
-		srpc_msg_t *msg;
-		srpc_generic_reply_t *reply;
-
-		msg = &rpc->srpc_reqstbuf->buf_msg;
-		reply = &rpc->srpc_replymsg.msg_body.reply;
-
-		if (msg->msg_magic == 0) {
-			/* moaned already in srpc_lnet_ev_handler */
-			srpc_server_rpc_done(rpc, EBADMSG);
-			return 1;
-		}
-
-		srpc_unpack_msg_hdr(msg);
-		if (msg->msg_version != SRPC_MSG_VERSION) {
-			CWARN("Version mismatch: %u, %u expected, from %s\n",
-			      msg->msg_version, SRPC_MSG_VERSION,
-			      libcfs_id2str(rpc->srpc_peer));
-			reply->status = EPROTO;
-			/* drop through and send reply */
-		} else {
-			reply->status = 0;
-			rc = (*sv->sv_handler)(rpc);
-			LASSERT(reply->status == 0 || !rpc->srpc_bulk);
-			if (rc != 0) {
-				srpc_server_rpc_done(rpc, rc);
-				return 1;
-			}
-		}
-
-		wi->swi_state = SWI_STATE_BULK_STARTED;
-
-		if (rpc->srpc_bulk != NULL) {
-			rc = srpc_do_bulk(rpc);
-			if (rc == 0)
-				return 0; /* wait for bulk */
-
-			LASSERT(ev->ev_fired);
-			ev->ev_status = rc;
-		}
-	}
-	case SWI_STATE_BULK_STARTED:
-		LASSERT(rpc->srpc_bulk == NULL || ev->ev_fired);
-
-		if (rpc->srpc_bulk != NULL) {
-			rc = ev->ev_status;
-
-			if (sv->sv_bulk_ready != NULL)
-				rc = (*sv->sv_bulk_ready) (rpc, rc);
-
-			if (rc != 0) {
-				srpc_server_rpc_done(rpc, rc);
-				return 1;
-			}
-		}
-
-		wi->swi_state = SWI_STATE_REPLY_SUBMITTED;
-		rc = srpc_send_reply(rpc);
-		if (rc == 0)
-			return 0; /* wait for reply */
-		srpc_server_rpc_done(rpc, rc);
-		return 1;
-
-	case SWI_STATE_REPLY_SUBMITTED:
-		if (!ev->ev_fired) {
-			CERROR("RPC %p: bulk %p, service %d\n",
-			       rpc, rpc->srpc_bulk, sv->sv_id);
-			CERROR("Event: status %d, type %d, lnet %d\n",
-			       ev->ev_status, ev->ev_type, ev->ev_lnet);
-			LASSERT(ev->ev_fired);
-		}
-
-		wi->swi_state = SWI_STATE_DONE;
-		srpc_server_rpc_done(rpc, ev->ev_status);
-		return 1;
-	}
-
-	return 0;
-}
-
-static void
-srpc_client_rpc_expired(void *data)
-{
-	srpc_client_rpc_t *rpc = data;
-
-	CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n",
-	       rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
-	       rpc->crpc_timeout);
-
-	spin_lock(&rpc->crpc_lock);
-
-	rpc->crpc_timeout = 0;
-	srpc_abort_rpc(rpc, -ETIMEDOUT);
-
-	spin_unlock(&rpc->crpc_lock);
-
-	spin_lock(&srpc_data.rpc_glock);
-	srpc_data.rpc_counters.rpcs_expired++;
-	spin_unlock(&srpc_data.rpc_glock);
-}
-
-inline void
-srpc_add_client_rpc_timer(srpc_client_rpc_t *rpc)
-{
-	stt_timer_t *timer = &rpc->crpc_timer;
-
-	if (rpc->crpc_timeout == 0)
-		return;
-
-	INIT_LIST_HEAD(&timer->stt_list);
-	timer->stt_data    = rpc;
-	timer->stt_func    = srpc_client_rpc_expired;
-	timer->stt_expires = cfs_time_add(rpc->crpc_timeout,
-					  get_seconds());
-	stt_add_timer(timer);
-	return;
-}
-
-/*
- * Called with rpc->crpc_lock held.
- *
- * Upon exit the RPC expiry timer is not queued and the handler is not
- * running on any CPU. */
-static void
-srpc_del_client_rpc_timer(srpc_client_rpc_t *rpc)
-{
-	/* timer not planted or already exploded */
-	if (rpc->crpc_timeout == 0)
-		return;
-
-	/* timer successfully defused */
-	if (stt_del_timer(&rpc->crpc_timer))
-		return;
-
-	/* timer detonated, wait for it to explode */
-	while (rpc->crpc_timeout != 0) {
-		spin_unlock(&rpc->crpc_lock);
-
-		schedule();
-
-		spin_lock(&rpc->crpc_lock);
-	}
-}
-
-static void
-srpc_client_rpc_done(srpc_client_rpc_t *rpc, int status)
-{
-	swi_workitem_t *wi = &rpc->crpc_wi;
-
-	LASSERT(status != 0 || wi->swi_state == SWI_STATE_DONE);
-
-	spin_lock(&rpc->crpc_lock);
-
-	rpc->crpc_closed = 1;
-	if (rpc->crpc_status == 0)
-		rpc->crpc_status = status;
-
-	srpc_del_client_rpc_timer(rpc);
-
-	CDEBUG_LIMIT((status == 0) ? D_NET : D_NETERROR,
-		"Client RPC done: service %d, peer %s, status %s:%d:%d\n",
-		rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
-		swi_state2str(wi->swi_state), rpc->crpc_aborted, status);
-
-	/*
-	 * No one can schedule me now since:
-	 * - RPC timer has been defused.
-	 * - all LNet events have been fired.
-	 * - crpc_closed has been set, preventing srpc_abort_rpc from
-	 *   scheduling me.
-	 * Cancel pending schedules and prevent future schedule attempts:
-	 */
-	LASSERT(!srpc_event_pending(rpc));
-	swi_exit_workitem(wi);
-
-	spin_unlock(&rpc->crpc_lock);
-
-	(*rpc->crpc_done)(rpc);
-	return;
-}
-
-/* sends an outgoing RPC */
-int
-srpc_send_rpc(swi_workitem_t *wi)
-{
-	int rc = 0;
-	srpc_client_rpc_t *rpc;
-	srpc_msg_t *reply;
-	int do_bulk;
-
-	LASSERT(wi != NULL);
-
-	rpc = wi->swi_workitem.wi_data;
-
-	LASSERT(rpc != NULL);
-	LASSERT(wi == &rpc->crpc_wi);
-
-	reply = &rpc->crpc_replymsg;
-	do_bulk = rpc->crpc_bulk.bk_niov > 0;
-
-	spin_lock(&rpc->crpc_lock);
-
-	if (rpc->crpc_aborted) {
-		spin_unlock(&rpc->crpc_lock);
-		goto abort;
-	}
-
-	spin_unlock(&rpc->crpc_lock);
-
-	switch (wi->swi_state) {
-	default:
-		LBUG();
-	case SWI_STATE_NEWBORN:
-		LASSERT(!srpc_event_pending(rpc));
-
-		rc = srpc_prepare_reply(rpc);
-		if (rc != 0) {
-			srpc_client_rpc_done(rpc, rc);
-			return 1;
-		}
-
-		rc = srpc_prepare_bulk(rpc);
-		if (rc != 0)
-			break;
-
-		wi->swi_state = SWI_STATE_REQUEST_SUBMITTED;
-		rc = srpc_send_request(rpc);
-		break;
-
-	case SWI_STATE_REQUEST_SUBMITTED:
-		/* CAVEAT EMPTOR: rqtev, rpyev, and bulkev may come in any
-		 * order; however, they're processed in a strict order:
-		 * rqt, rpy, and bulk. */
-		if (!rpc->crpc_reqstev.ev_fired)
-			break;
-
-		rc = rpc->crpc_reqstev.ev_status;
-		if (rc != 0)
-			break;
-
-		wi->swi_state = SWI_STATE_REQUEST_SENT;
-		/* perhaps more events, fall thru */
-	case SWI_STATE_REQUEST_SENT: {
-		srpc_msg_type_t type = srpc_service2reply(rpc->crpc_service);
-
-		if (!rpc->crpc_replyev.ev_fired)
-			break;
-
-		rc = rpc->crpc_replyev.ev_status;
-		if (rc != 0)
-			break;
-
-		srpc_unpack_msg_hdr(reply);
-		if (reply->msg_type != type ||
-		    (reply->msg_magic != SRPC_MSG_MAGIC &&
-		     reply->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
-			CWARN("Bad message from %s: type %u (%d expected), magic %u (%d expected).\n",
-			      libcfs_id2str(rpc->crpc_dest),
-			      reply->msg_type, type,
-			      reply->msg_magic, SRPC_MSG_MAGIC);
-			rc = -EBADMSG;
-			break;
-		}
-
-		if (do_bulk && reply->msg_body.reply.status != 0) {
-			CWARN("Remote error %d at %s, unlink bulk buffer in case peer didn't initiate bulk transfer\n",
-			      reply->msg_body.reply.status,
-			      libcfs_id2str(rpc->crpc_dest));
-			LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
-		}
-
-		wi->swi_state = SWI_STATE_REPLY_RECEIVED;
-	}
-	case SWI_STATE_REPLY_RECEIVED:
-		if (do_bulk && !rpc->crpc_bulkev.ev_fired)
-			break;
-
-		rc = do_bulk ? rpc->crpc_bulkev.ev_status : 0;
-
-		/* Bulk buffer was unlinked due to remote error. Clear error
-		 * since reply buffer still contains valid data.
-		 * NB rpc->crpc_done shouldn't look into bulk data in case of
-		 * remote error. */
-		if (do_bulk && rpc->crpc_bulkev.ev_lnet == LNET_EVENT_UNLINK &&
-		    rpc->crpc_status == 0 && reply->msg_body.reply.status != 0)
-			rc = 0;
-
-		wi->swi_state = SWI_STATE_DONE;
-		srpc_client_rpc_done(rpc, rc);
-		return 1;
-	}
-
-	if (rc != 0) {
-		spin_lock(&rpc->crpc_lock);
-		srpc_abort_rpc(rpc, rc);
-		spin_unlock(&rpc->crpc_lock);
-	}
-
-abort:
-	if (rpc->crpc_aborted) {
-		LNetMDUnlink(rpc->crpc_reqstmdh);
-		LNetMDUnlink(rpc->crpc_replymdh);
-		LNetMDUnlink(rpc->crpc_bulk.bk_mdh);
-
-		if (!srpc_event_pending(rpc)) {
-			srpc_client_rpc_done(rpc, -EINTR);
-			return 1;
-		}
-	}
-	return 0;
-}
-
-srpc_client_rpc_t *
-srpc_create_client_rpc(lnet_process_id_t peer, int service,
-			int nbulkiov, int bulklen,
-			void (*rpc_done)(srpc_client_rpc_t *),
-			void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
-{
-	srpc_client_rpc_t *rpc;
-
-	LIBCFS_ALLOC(rpc, offsetof(srpc_client_rpc_t,
-				   crpc_bulk.bk_iovs[nbulkiov]));
-	if (rpc == NULL)
-		return NULL;
-
-	srpc_init_client_rpc(rpc, peer, service, nbulkiov,
-			     bulklen, rpc_done, rpc_fini, priv);
-	return rpc;
-}
-
-/* called with rpc->crpc_lock held */
-void
-srpc_abort_rpc(srpc_client_rpc_t *rpc, int why)
-{
-	LASSERT(why != 0);
-
-	if (rpc->crpc_aborted || /* already aborted */
-	    rpc->crpc_closed)    /* callback imminent */
-		return;
-
-	CDEBUG(D_NET,
-		"Aborting RPC: service %d, peer %s, state %s, why %d\n",
-		rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
-		swi_state2str(rpc->crpc_wi.swi_state), why);
-
-	rpc->crpc_aborted = 1;
-	rpc->crpc_status  = why;
-	swi_schedule_workitem(&rpc->crpc_wi);
-	return;
-}
-
-/* called with rpc->crpc_lock held */
-void
-srpc_post_rpc(srpc_client_rpc_t *rpc)
-{
-	LASSERT(!rpc->crpc_aborted);
-	LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING);
-
-	CDEBUG(D_NET, "Posting RPC: peer %s, service %d, timeout %d\n",
-		libcfs_id2str(rpc->crpc_dest), rpc->crpc_service,
-		rpc->crpc_timeout);
-
-	srpc_add_client_rpc_timer(rpc);
-	swi_schedule_workitem(&rpc->crpc_wi);
-	return;
-}
-
-
-int
-srpc_send_reply(struct srpc_server_rpc *rpc)
-{
-	srpc_event_t *ev = &rpc->srpc_ev;
-	struct srpc_msg *msg = &rpc->srpc_replymsg;
-	struct srpc_buffer *buffer = rpc->srpc_reqstbuf;
-	struct srpc_service_cd *scd = rpc->srpc_scd;
-	struct srpc_service *sv = scd->scd_svc;
-	__u64 rpyid;
-	int rc;
-
-	LASSERT(buffer != NULL);
-	rpyid = buffer->buf_msg.msg_body.reqst.rpyid;
-
-	spin_lock(&scd->scd_lock);
-
-	if (!sv->sv_shuttingdown && !srpc_serv_is_framework(sv)) {
-		/* Repost buffer before replying since test client
-		 * might send me another RPC once it gets the reply */
-		if (srpc_service_post_buffer(scd, buffer) != 0)
-			CWARN("Failed to repost %s buffer\n", sv->sv_name);
-		rpc->srpc_reqstbuf = NULL;
-	}
-
-	spin_unlock(&scd->scd_lock);
-
-	ev->ev_fired = 0;
-	ev->ev_data  = rpc;
-	ev->ev_type  = SRPC_REPLY_SENT;
-
-	msg->msg_magic   = SRPC_MSG_MAGIC;
-	msg->msg_version = SRPC_MSG_VERSION;
-	msg->msg_type    = srpc_service2reply(sv->sv_id);
-
-	rc = srpc_post_active_rdma(SRPC_RDMA_PORTAL, rpyid, msg,
-				   sizeof(*msg), LNET_MD_OP_PUT,
-				   rpc->srpc_peer, rpc->srpc_self,
-				   &rpc->srpc_replymdh, ev);
-	if (rc != 0)
-		ev->ev_fired = 1;  /* no more event expected */
-	return rc;
-}
-
-/* when in kernel always called with LNET_LOCK() held, and in thread context */
-static void
-srpc_lnet_ev_handler(lnet_event_t *ev)
-{
-	struct srpc_service_cd *scd;
-	srpc_event_t *rpcev = ev->md.user_ptr;
-	srpc_client_rpc_t *crpc;
-	srpc_server_rpc_t *srpc;
-	srpc_buffer_t *buffer;
-	srpc_service_t *sv;
-	srpc_msg_t *msg;
-	srpc_msg_type_t type;
-
-	LASSERT(!in_interrupt());
-
-	if (ev->status != 0) {
-		spin_lock(&srpc_data.rpc_glock);
-		srpc_data.rpc_counters.errors++;
-		spin_unlock(&srpc_data.rpc_glock);
-	}
-
-	rpcev->ev_lnet = ev->type;
-
-	switch (rpcev->ev_type) {
-	default:
-		CERROR("Unknown event: status %d, type %d, lnet %d\n",
-		       rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
-		LBUG();
-	case SRPC_REQUEST_SENT:
-		if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
-			spin_lock(&srpc_data.rpc_glock);
-			srpc_data.rpc_counters.rpcs_sent++;
-			spin_unlock(&srpc_data.rpc_glock);
-		}
-	case SRPC_REPLY_RCVD:
-	case SRPC_BULK_REQ_RCVD:
-		crpc = rpcev->ev_data;
-
-		if (rpcev != &crpc->crpc_reqstev &&
-		    rpcev != &crpc->crpc_replyev &&
-		    rpcev != &crpc->crpc_bulkev) {
-			CERROR("rpcev %p, crpc %p, reqstev %p, replyev %p, bulkev %p\n",
-			       rpcev, crpc, &crpc->crpc_reqstev,
-			       &crpc->crpc_replyev, &crpc->crpc_bulkev);
-			CERROR("Bad event: status %d, type %d, lnet %d\n",
-			       rpcev->ev_status, rpcev->ev_type, rpcev->ev_lnet);
-			LBUG();
-		}
-
-		spin_lock(&crpc->crpc_lock);
-
-		LASSERT(rpcev->ev_fired == 0);
-		rpcev->ev_fired  = 1;
-		rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
-						-EINTR : ev->status;
-		swi_schedule_workitem(&crpc->crpc_wi);
-
-		spin_unlock(&crpc->crpc_lock);
-		break;
-
-	case SRPC_REQUEST_RCVD:
-		scd = rpcev->ev_data;
-		sv = scd->scd_svc;
-
-		LASSERT(rpcev == &scd->scd_ev);
-
-		spin_lock(&scd->scd_lock);
-
-		LASSERT(ev->unlinked);
-		LASSERT(ev->type == LNET_EVENT_PUT ||
-			 ev->type == LNET_EVENT_UNLINK);
-		LASSERT(ev->type != LNET_EVENT_UNLINK ||
-			 sv->sv_shuttingdown);
-
-		buffer = container_of(ev->md.start, srpc_buffer_t, buf_msg);
-		buffer->buf_peer = ev->initiator;
-		buffer->buf_self = ev->target.nid;
-
-		LASSERT(scd->scd_buf_nposted > 0);
-		scd->scd_buf_nposted--;
-
-		if (sv->sv_shuttingdown) {
-			/* Leave buffer on scd->scd_buf_nposted since
-			 * srpc_finish_service needs to traverse it. */
-			spin_unlock(&scd->scd_lock);
-			break;
-		}
-
-		if (scd->scd_buf_err_stamp != 0 &&
-		    scd->scd_buf_err_stamp < get_seconds()) {
-			/* re-enable adding buffer */
-			scd->scd_buf_err_stamp = 0;
-			scd->scd_buf_err = 0;
-		}
-
-		if (scd->scd_buf_err == 0 && /* adding buffer is enabled */
-		    scd->scd_buf_adjust == 0 &&
-		    scd->scd_buf_nposted < scd->scd_buf_low) {
-			scd->scd_buf_adjust = max(scd->scd_buf_total / 2,
-						  SFW_TEST_WI_MIN);
-			swi_schedule_workitem(&scd->scd_buf_wi);
-		}
-
-		list_del(&buffer->buf_list); /* from scd->scd_buf_posted */
-		msg = &buffer->buf_msg;
-		type = srpc_service2request(sv->sv_id);
-
-		if (ev->status != 0 || ev->mlength != sizeof(*msg) ||
-		    (msg->msg_type != type &&
-		     msg->msg_type != __swab32(type)) ||
-		    (msg->msg_magic != SRPC_MSG_MAGIC &&
-		     msg->msg_magic != __swab32(SRPC_MSG_MAGIC))) {
-			CERROR("Dropping RPC (%s) from %s: status %d mlength %d type %u magic %u.\n",
-			       sv->sv_name, libcfs_id2str(ev->initiator),
-			       ev->status, ev->mlength,
-			       msg->msg_type, msg->msg_magic);
-
-			/* NB can't call srpc_service_recycle_buffer here since
-			 * it may call LNetM[DE]Attach. The invalid magic tells
-			 * srpc_handle_rpc to drop this RPC */
-			msg->msg_magic = 0;
-		}
-
-		if (!list_empty(&scd->scd_rpc_free)) {
-			srpc = list_entry(scd->scd_rpc_free.next,
-					      struct srpc_server_rpc,
-					      srpc_list);
-			list_del(&srpc->srpc_list);
-
-			srpc_init_server_rpc(srpc, scd, buffer);
-			list_add_tail(&srpc->srpc_list,
-					  &scd->scd_rpc_active);
-			swi_schedule_workitem(&srpc->srpc_wi);
-		} else {
-			list_add_tail(&buffer->buf_list,
-					  &scd->scd_buf_blocked);
-		}
-
-		spin_unlock(&scd->scd_lock);
-
-		spin_lock(&srpc_data.rpc_glock);
-		srpc_data.rpc_counters.rpcs_rcvd++;
-		spin_unlock(&srpc_data.rpc_glock);
-		break;
-
-	case SRPC_BULK_GET_RPLD:
-		LASSERT(ev->type == LNET_EVENT_SEND ||
-			 ev->type == LNET_EVENT_REPLY ||
-			 ev->type == LNET_EVENT_UNLINK);
-
-		if (!ev->unlinked)
-			break; /* wait for final event */
-
-	case SRPC_BULK_PUT_SENT:
-		if (ev->status == 0 && ev->type != LNET_EVENT_UNLINK) {
-			spin_lock(&srpc_data.rpc_glock);
-
-			if (rpcev->ev_type == SRPC_BULK_GET_RPLD)
-				srpc_data.rpc_counters.bulk_get += ev->mlength;
-			else
-				srpc_data.rpc_counters.bulk_put += ev->mlength;
-
-			spin_unlock(&srpc_data.rpc_glock);
-		}
-	case SRPC_REPLY_SENT:
-		srpc = rpcev->ev_data;
-		scd  = srpc->srpc_scd;
-
-		LASSERT(rpcev == &srpc->srpc_ev);
-
-		spin_lock(&scd->scd_lock);
-
-		rpcev->ev_fired  = 1;
-		rpcev->ev_status = (ev->type == LNET_EVENT_UNLINK) ?
-				   -EINTR : ev->status;
-		swi_schedule_workitem(&srpc->srpc_wi);
-
-		spin_unlock(&scd->scd_lock);
-		break;
-	}
-}
-
-
-int
-srpc_startup(void)
-{
-	int rc;
-
-	memset(&srpc_data, 0, sizeof(struct smoketest_rpc));
-	spin_lock_init(&srpc_data.rpc_glock);
-
-	/* 1 second pause to avoid timestamp reuse */
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	schedule_timeout(cfs_time_seconds(1));
-	srpc_data.rpc_matchbits = ((__u64) get_seconds()) << 48;
-
-	srpc_data.rpc_state = SRPC_STATE_NONE;
-
-	rc = LNetNIInit(LUSTRE_SRV_LNET_PID);
-	if (rc < 0) {
-		CERROR("LNetNIInit() has failed: %d\n", rc);
-		return rc;
-	}
-
-	srpc_data.rpc_state = SRPC_STATE_NI_INIT;
-
-	LNetInvalidateHandle(&srpc_data.rpc_lnet_eq);
-	rc = LNetEQAlloc(0, srpc_lnet_ev_handler, &srpc_data.rpc_lnet_eq);
-	if (rc != 0) {
-		CERROR("LNetEQAlloc() has failed: %d\n", rc);
-		goto bail;
-	}
-
-	rc = LNetSetLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
-	LASSERT(rc == 0);
-	rc = LNetSetLazyPortal(SRPC_REQUEST_PORTAL);
-	LASSERT(rc == 0);
-
-	srpc_data.rpc_state = SRPC_STATE_EQ_INIT;
-
-	rc = stt_startup();
-
-bail:
-	if (rc != 0)
-		srpc_shutdown();
-	else
-		srpc_data.rpc_state = SRPC_STATE_RUNNING;
-
-	return rc;
-}
-
-void
-srpc_shutdown(void)
-{
-	int i;
-	int rc;
-	int state;
-
-	state = srpc_data.rpc_state;
-	srpc_data.rpc_state = SRPC_STATE_STOPPING;
-
-	switch (state) {
-	default:
-		LBUG();
-	case SRPC_STATE_RUNNING:
-		spin_lock(&srpc_data.rpc_glock);
-
-		for (i = 0; i <= SRPC_SERVICE_MAX_ID; i++) {
-			srpc_service_t *sv = srpc_data.rpc_services[i];
-
-			LASSERTF(sv == NULL,
-				  "service not empty: id %d, name %s\n",
-				  i, sv->sv_name);
-		}
-
-		spin_unlock(&srpc_data.rpc_glock);
-
-		stt_shutdown();
-
-	case SRPC_STATE_EQ_INIT:
-		rc = LNetClearLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
-		rc = LNetClearLazyPortal(SRPC_REQUEST_PORTAL);
-		LASSERT(rc == 0);
-		rc = LNetEQFree(srpc_data.rpc_lnet_eq);
-		LASSERT(rc == 0); /* the EQ should have no user by now */
-
-	case SRPC_STATE_NI_INIT:
-		LNetNIFini();
-	}
-
-	return;
-}
diff --git a/drivers/staging/lustre/lnet/selftest/rpc.h b/drivers/staging/lustre/lnet/selftest/rpc.h
deleted file mode 100644
index b7b00c6b1004..000000000000
--- a/drivers/staging/lustre/lnet/selftest/rpc.h
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __SELFTEST_RPC_H__
-#define __SELFTEST_RPC_H__
-
-#include "../../include/linux/lnet/lnetst.h"
-
-/*
- * LST wired structures
- *
- * XXX: *REPLY == *REQST + 1
- */
-typedef enum {
-	SRPC_MSG_MKSN_REQST     = 0,
-	SRPC_MSG_MKSN_REPLY     = 1,
-	SRPC_MSG_RMSN_REQST     = 2,
-	SRPC_MSG_RMSN_REPLY     = 3,
-	SRPC_MSG_BATCH_REQST    = 4,
-	SRPC_MSG_BATCH_REPLY    = 5,
-	SRPC_MSG_STAT_REQST     = 6,
-	SRPC_MSG_STAT_REPLY     = 7,
-	SRPC_MSG_TEST_REQST     = 8,
-	SRPC_MSG_TEST_REPLY     = 9,
-	SRPC_MSG_DEBUG_REQST    = 10,
-	SRPC_MSG_DEBUG_REPLY    = 11,
-	SRPC_MSG_BRW_REQST      = 12,
-	SRPC_MSG_BRW_REPLY      = 13,
-	SRPC_MSG_PING_REQST     = 14,
-	SRPC_MSG_PING_REPLY     = 15,
-	SRPC_MSG_JOIN_REQST     = 16,
-	SRPC_MSG_JOIN_REPLY     = 17,
-} srpc_msg_type_t;
-
-
-/* CAVEAT EMPTOR:
- * All srpc_*_reqst_t's 1st field must be matchbits of reply buffer,
- * and 2nd field matchbits of bulk buffer if any.
- *
- * All srpc_*_reply_t's 1st field must be a __u32 status, and 2nd field
- * session id if needed.
- */
-typedef struct {
-	__u64			rpyid;		/* reply buffer matchbits */
-	__u64			bulkid;		/* bulk buffer matchbits */
-} WIRE_ATTR srpc_generic_reqst_t;
-
-typedef struct {
-	__u32                   status;
-	lst_sid_t               sid;
-} WIRE_ATTR srpc_generic_reply_t;
-
-/* FRAMEWORK RPCs */
-typedef struct {
-	__u64                   mksn_rpyid;     /* reply buffer matchbits */
-	lst_sid_t               mksn_sid;	/* session id */
-	__u32			mksn_force;     /* use brute force */
-	char			mksn_name[LST_NAME_SIZE];
-} WIRE_ATTR srpc_mksn_reqst_t; /* make session request */
-
-typedef struct {
-	__u32                   mksn_status;    /* session status */
-	lst_sid_t               mksn_sid;       /* session id */
-	__u32                   mksn_timeout;   /* session timeout */
-	char                    mksn_name[LST_NAME_SIZE];
-} WIRE_ATTR srpc_mksn_reply_t; /* make session reply */
-
-typedef struct {
-	__u64                   rmsn_rpyid;     /* reply buffer matchbits */
-	lst_sid_t               rmsn_sid;       /* session id */
-} WIRE_ATTR srpc_rmsn_reqst_t; /* remove session request */
-
-typedef struct {
-	__u32                   rmsn_status;
-	lst_sid_t               rmsn_sid;       /* session id */
-} WIRE_ATTR srpc_rmsn_reply_t; /* remove session reply */
-
-typedef struct {
-	__u64                   join_rpyid;     /* reply buffer matchbits */
-	lst_sid_t               join_sid;       /* session id to join */
-	char                    join_group[LST_NAME_SIZE]; /* group name */
-} WIRE_ATTR srpc_join_reqst_t;
-
-typedef struct {
-	__u32                   join_status;    /* returned status */
-	lst_sid_t               join_sid;       /* session id */
-	__u32			join_timeout;   /* # seconds' inactivity to
-						 * expire */
-	char                    join_session[LST_NAME_SIZE]; /* session name */
-} WIRE_ATTR srpc_join_reply_t;
-
-typedef struct {
-	__u64                   dbg_rpyid;      /* reply buffer matchbits */
-	lst_sid_t               dbg_sid;        /* session id */
-	__u32                   dbg_flags;      /* bitmap of debug */
-} WIRE_ATTR srpc_debug_reqst_t;
-
-typedef struct {
-	__u32                   dbg_status;     /* returned code */
-	lst_sid_t               dbg_sid;        /* session id */
-	__u32                   dbg_timeout;    /* session timeout */
-	__u32                   dbg_nbatch;     /* # of batches in the node */
-	char                    dbg_name[LST_NAME_SIZE]; /* session name */
-} WIRE_ATTR srpc_debug_reply_t;
-
-#define SRPC_BATCH_OPC_RUN      1
-#define SRPC_BATCH_OPC_STOP     2
-#define SRPC_BATCH_OPC_QUERY    3
-
-typedef struct {
-	__u64              bar_rpyid;      /* reply buffer matchbits */
-	lst_sid_t          bar_sid;        /* session id */
-	lst_bid_t          bar_bid;        /* batch id */
-	__u32              bar_opc;        /* create/start/stop batch */
-	__u32              bar_testidx;    /* index of test */
-	__u32              bar_arg;        /* parameters */
-} WIRE_ATTR srpc_batch_reqst_t;
-
-typedef struct {
-	__u32              bar_status;     /* status of request */
-	lst_sid_t          bar_sid;        /* session id */
-	__u32              bar_active;     /* # of active tests in batch/test */
-	__u32              bar_time;       /* remained time */
-} WIRE_ATTR srpc_batch_reply_t;
-
-typedef struct {
-	__u64              str_rpyid;      /* reply buffer matchbits */
-	lst_sid_t          str_sid;        /* session id */
-	__u32              str_type;       /* type of stat */
-} WIRE_ATTR srpc_stat_reqst_t;
-
-typedef struct {
-	__u32              str_status;
-	lst_sid_t          str_sid;
-	sfw_counters_t     str_fw;
-	srpc_counters_t    str_rpc;
-	lnet_counters_t    str_lnet;
-} WIRE_ATTR srpc_stat_reply_t;
-
-typedef struct {
-	__u32              blk_opc;        /* bulk operation code */
-	__u32              blk_npg;        /* # of pages */
-	__u32              blk_flags;      /* reserved flags */
-} WIRE_ATTR test_bulk_req_t;
-
-typedef struct {
-	__u16              blk_opc;        /* bulk operation code */
-	__u16              blk_flags;      /* data check flags */
-	__u32              blk_len;        /* data length */
-	__u32              blk_offset;     /* reserved: offset */
-} WIRE_ATTR test_bulk_req_v1_t;
-
-typedef struct {
-	__u32              png_size;       /* size of ping message */
-	__u32              png_flags;      /* reserved flags */
-} WIRE_ATTR test_ping_req_t;
-
-typedef struct {
-	__u64			tsr_rpyid;      /* reply buffer matchbits */
-	__u64			tsr_bulkid;     /* bulk buffer matchbits */
-	lst_sid_t		tsr_sid;	/* session id */
-	lst_bid_t		tsr_bid;	/* batch id */
-	__u32			tsr_service;    /* test type: bulk|ping|... */
-	__u32			tsr_loop;       /* test client loop count or
-						 * # server buffers needed */
-	__u32			tsr_concur;     /* concurrency of test */
-	__u8			tsr_is_client;  /* is test client or not */
-	__u8			tsr_stop_onerr; /* stop on error */
-	__u32			tsr_ndest;      /* # of dest nodes */
-
-	union {
-		test_ping_req_t		ping;
-		test_bulk_req_t		bulk_v0;
-		test_bulk_req_v1_t	bulk_v1;
-	}		tsr_u;
-} WIRE_ATTR srpc_test_reqst_t;
-
-typedef struct {
-	__u32			tsr_status;     /* returned code */
-	lst_sid_t		tsr_sid;
-} WIRE_ATTR srpc_test_reply_t;
-
-/* TEST RPCs */
-typedef struct {
-	__u64		   pnr_rpyid;
-	__u32		   pnr_magic;
-	__u32		   pnr_seq;
-	__u64		   pnr_time_sec;
-	__u64		   pnr_time_usec;
-} WIRE_ATTR srpc_ping_reqst_t;
-
-typedef struct {
-	__u32		   pnr_status;
-	__u32		   pnr_magic;
-	__u32		   pnr_seq;
-} WIRE_ATTR srpc_ping_reply_t;
-
-typedef struct {
-	__u64		   brw_rpyid;      /* reply buffer matchbits */
-	__u64		   brw_bulkid;     /* bulk buffer matchbits */
-	__u32		   brw_rw;         /* read or write */
-	__u32		   brw_len;        /* bulk data len */
-	__u32		   brw_flags;      /* bulk data patterns */
-} WIRE_ATTR srpc_brw_reqst_t; /* bulk r/w request */
-
-typedef struct {
-	__u32		   brw_status;
-} WIRE_ATTR srpc_brw_reply_t; /* bulk r/w reply */
-
-#define SRPC_MSG_MAGIC   0xeeb0f00d
-#define SRPC_MSG_VERSION 1
-
-typedef struct srpc_msg {
-	__u32	msg_magic;     /* magic number */
-	__u32	msg_version;   /* message version number */
-	__u32	msg_type;      /* type of message body: srpc_msg_type_t */
-	__u32	msg_reserved0;
-	__u32	msg_reserved1;
-	__u32	msg_ses_feats; /* test session features */
-	union {
-		srpc_generic_reqst_t reqst;
-		srpc_generic_reply_t reply;
-
-		srpc_mksn_reqst_t    mksn_reqst;
-		srpc_mksn_reply_t    mksn_reply;
-		srpc_rmsn_reqst_t    rmsn_reqst;
-		srpc_rmsn_reply_t    rmsn_reply;
-		srpc_debug_reqst_t   dbg_reqst;
-		srpc_debug_reply_t   dbg_reply;
-		srpc_batch_reqst_t   bat_reqst;
-		srpc_batch_reply_t   bat_reply;
-		srpc_stat_reqst_t    stat_reqst;
-		srpc_stat_reply_t    stat_reply;
-		srpc_test_reqst_t    tes_reqst;
-		srpc_test_reply_t    tes_reply;
-		srpc_join_reqst_t    join_reqst;
-		srpc_join_reply_t    join_reply;
-
-		srpc_ping_reqst_t    ping_reqst;
-		srpc_ping_reply_t    ping_reply;
-		srpc_brw_reqst_t     brw_reqst;
-		srpc_brw_reply_t     brw_reply;
-	}     msg_body;
-} WIRE_ATTR srpc_msg_t;
-
-static inline void
-srpc_unpack_msg_hdr(srpc_msg_t *msg)
-{
-	if (msg->msg_magic == SRPC_MSG_MAGIC)
-		return; /* no flipping needed */
-
-	/* We do not swap the magic number here as it is needed to
-	   determine whether the body needs to be swapped. */
-	/* __swab32s(&msg->msg_magic); */
-	__swab32s(&msg->msg_type);
-	__swab32s(&msg->msg_version);
-	__swab32s(&msg->msg_ses_feats);
-	__swab32s(&msg->msg_reserved0);
-	__swab32s(&msg->msg_reserved1);
-}
-
-#endif /* __SELFTEST_RPC_H__ */
diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h
deleted file mode 100644
index 7939e4e04d90..000000000000
--- a/drivers/staging/lustre/lnet/selftest/selftest.h
+++ /dev/null
@@ -1,629 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- * copy of GPLv2].
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/selftest.h
- *
- * Author: Isaac Huang <isaac@clusterfs.com>
- */
-#ifndef __SELFTEST_SELFTEST_H__
-#define __SELFTEST_SELFTEST_H__
-
-#define LNET_ONLY
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lnet.h"
-#include "../../include/linux/lnet/lib-lnet.h"
-#include "../../include/linux/lnet/lib-types.h"
-#include "../../include/linux/lnet/lnetst.h"
-
-#include "rpc.h"
-#include "timer.h"
-
-#ifndef MADE_WITHOUT_COMPROMISE
-#define MADE_WITHOUT_COMPROMISE
-#endif
-
-
-#define SWI_STATE_NEWBORN           0
-#define SWI_STATE_REPLY_SUBMITTED   1
-#define SWI_STATE_REPLY_SENT        2
-#define SWI_STATE_REQUEST_SUBMITTED 3
-#define SWI_STATE_REQUEST_SENT      4
-#define SWI_STATE_REPLY_RECEIVED    5
-#define SWI_STATE_BULK_STARTED      6
-#define SWI_STATE_DONE             10
-
-/* forward refs */
-struct srpc_service;
-struct srpc_service_cd;
-struct sfw_test_unit;
-struct sfw_test_instance;
-
-/* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
- * services, e.g. create/modify session.
- */
-#define SRPC_SERVICE_DEBUG             0
-#define SRPC_SERVICE_MAKE_SESSION      1
-#define SRPC_SERVICE_REMOVE_SESSION    2
-#define SRPC_SERVICE_BATCH             3
-#define SRPC_SERVICE_TEST              4
-#define SRPC_SERVICE_QUERY_STAT        5
-#define SRPC_SERVICE_JOIN              6
-#define SRPC_FRAMEWORK_SERVICE_MAX_ID 10
-/* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
-#define SRPC_SERVICE_BRW              11
-#define SRPC_SERVICE_PING             12
-#define SRPC_SERVICE_MAX_ID           12
-
-#define SRPC_REQUEST_PORTAL           50
-/* a lazy portal for framework RPC requests */
-#define SRPC_FRAMEWORK_REQUEST_PORTAL 51
-/* all reply/bulk RDMAs go to this portal */
-#define SRPC_RDMA_PORTAL              52
-
-static inline srpc_msg_type_t
-srpc_service2request (int service)
-{
-	switch (service) {
-	default:
-		LBUG ();
-	case SRPC_SERVICE_DEBUG:
-		return SRPC_MSG_DEBUG_REQST;
-
-	case SRPC_SERVICE_MAKE_SESSION:
-		return SRPC_MSG_MKSN_REQST;
-
-	case SRPC_SERVICE_REMOVE_SESSION:
-		return SRPC_MSG_RMSN_REQST;
-
-	case SRPC_SERVICE_BATCH:
-		return SRPC_MSG_BATCH_REQST;
-
-	case SRPC_SERVICE_TEST:
-		return SRPC_MSG_TEST_REQST;
-
-	case SRPC_SERVICE_QUERY_STAT:
-		return SRPC_MSG_STAT_REQST;
-
-	case SRPC_SERVICE_BRW:
-		return SRPC_MSG_BRW_REQST;
-
-	case SRPC_SERVICE_PING:
-		return SRPC_MSG_PING_REQST;
-
-	case SRPC_SERVICE_JOIN:
-		return SRPC_MSG_JOIN_REQST;
-	}
-}
-
-static inline srpc_msg_type_t
-srpc_service2reply (int service)
-{
-	return srpc_service2request(service) + 1;
-}
-
-typedef enum {
-	SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source)
-				   * received */
-	SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
-	SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
-	SRPC_REPLY_RCVD      = 4, /* incoming reply received */
-	SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
-	SRPC_REQUEST_RCVD    = 6, /* incoming request received */
-	SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
-} srpc_event_type_t;
-
-/* RPC event */
-typedef struct {
-	srpc_event_type_t ev_type;   /* what's up */
-	lnet_event_kind_t ev_lnet;   /* LNet event type */
-	int               ev_fired;  /* LNet event fired? */
-	int               ev_status; /* LNet event status */
-	void              *ev_data;  /* owning server/client RPC */
-} srpc_event_t;
-
-typedef struct {
-	int              bk_len;     /* len of bulk data */
-	lnet_handle_md_t bk_mdh;
-	int              bk_sink;    /* sink/source */
-	int              bk_niov;    /* # iov in bk_iovs */
-	lnet_kiov_t      bk_iovs[0];
-} srpc_bulk_t; /* bulk descriptor */
-
-/* message buffer descriptor */
-typedef struct srpc_buffer {
-	struct list_head  buf_list; /* chain on srpc_service::*_msgq */
-	srpc_msg_t        buf_msg;
-	lnet_handle_md_t  buf_mdh;
-	lnet_nid_t        buf_self;
-	lnet_process_id_t buf_peer;
-} srpc_buffer_t;
-
-struct swi_workitem;
-typedef int (*swi_action_t) (struct swi_workitem *);
-
-typedef struct swi_workitem {
-	struct cfs_wi_sched *swi_sched;
-	cfs_workitem_t      swi_workitem;
-	swi_action_t        swi_action;
-	int                 swi_state;
-} swi_workitem_t;
-
-/* server-side state of a RPC */
-typedef struct srpc_server_rpc {
-	/* chain on srpc_service::*_rpcq */
-	struct list_head       srpc_list;
-	struct srpc_service_cd *srpc_scd;
-	swi_workitem_t         srpc_wi;
-	srpc_event_t           srpc_ev;      /* bulk/reply event */
-	lnet_nid_t             srpc_self;
-	lnet_process_id_t      srpc_peer;
-	srpc_msg_t             srpc_replymsg;
-	lnet_handle_md_t       srpc_replymdh;
-	srpc_buffer_t          *srpc_reqstbuf;
-	srpc_bulk_t            *srpc_bulk;
-
-	unsigned int           srpc_aborted; /* being given up */
-	int                    srpc_status;
-	void                   (*srpc_done)(struct srpc_server_rpc *);
-} srpc_server_rpc_t;
-
-/* client-side state of a RPC */
-typedef struct srpc_client_rpc {
-	struct list_head  crpc_list;      /* chain on user's lists */
-	spinlock_t        crpc_lock;      /* serialize */
-	int               crpc_service;
-	atomic_t          crpc_refcount;
-	int               crpc_timeout;   /* # seconds to wait for reply */
-	stt_timer_t       crpc_timer;
-	swi_workitem_t    crpc_wi;
-	lnet_process_id_t crpc_dest;
-
-	void              (*crpc_done)(struct srpc_client_rpc *);
-	void              (*crpc_fini)(struct srpc_client_rpc *);
-	int               crpc_status;    /* completion status */
-	void              *crpc_priv;     /* caller data */
-
-	/* state flags */
-	unsigned int      crpc_aborted:1; /* being given up */
-	unsigned int      crpc_closed:1;  /* completed */
-
-	/* RPC events */
-	srpc_event_t      crpc_bulkev;    /* bulk event */
-	srpc_event_t      crpc_reqstev;   /* request event */
-	srpc_event_t      crpc_replyev;   /* reply event */
-
-	/* bulk, request(reqst), and reply exchanged on wire */
-	srpc_msg_t        crpc_reqstmsg;
-	srpc_msg_t        crpc_replymsg;
-	lnet_handle_md_t  crpc_reqstmdh;
-	lnet_handle_md_t  crpc_replymdh;
-	srpc_bulk_t       crpc_bulk;
-} srpc_client_rpc_t;
-
-#define srpc_client_rpc_size(rpc)                                        \
-offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
-
-#define srpc_client_rpc_addref(rpc)                                      \
-do {                                                                     \
-	CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                          \
-	       (rpc), libcfs_id2str((rpc)->crpc_dest),                   \
-	       atomic_read(&(rpc)->crpc_refcount));                      \
-	LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                 \
-	atomic_inc(&(rpc)->crpc_refcount);                               \
-} while (0)
-
-#define srpc_client_rpc_decref(rpc)                                      \
-do {                                                                     \
-	CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                          \
-	       (rpc), libcfs_id2str((rpc)->crpc_dest),                   \
-	       atomic_read(&(rpc)->crpc_refcount));                      \
-	LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                 \
-	if (atomic_dec_and_test(&(rpc)->crpc_refcount))                  \
-		srpc_destroy_client_rpc(rpc);                            \
-} while (0)
-
-#define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||   \
-				   (rpc)->crpc_reqstev.ev_fired == 0 ||  \
-				   (rpc)->crpc_replyev.ev_fired == 0)
-
-/* CPU partition data of srpc service */
-struct srpc_service_cd {
-	/** serialize */
-	spinlock_t		scd_lock;
-	/** backref to service */
-	struct srpc_service	*scd_svc;
-	/** event buffer */
-	srpc_event_t		scd_ev;
-	/** free RPC descriptors */
-	struct list_head        scd_rpc_free;
-	/** in-flight RPCs */
-	struct list_head        scd_rpc_active;
-	/** workitem for posting buffer */
-	swi_workitem_t		scd_buf_wi;
-	/** CPT id */
-	int			scd_cpt;
-	/** error code for scd_buf_wi */
-	int			scd_buf_err;
-	/** timestamp for scd_buf_err */
-	unsigned long           scd_buf_err_stamp;
-	/** total # request buffers */
-	int			scd_buf_total;
-	/** # posted request buffers */
-	int			scd_buf_nposted;
-	/** in progress of buffer posting */
-	int			scd_buf_posting;
-	/** allocate more buffers if scd_buf_nposted < scd_buf_low */
-	int			scd_buf_low;
-	/** increase/decrease some buffers */
-	int			scd_buf_adjust;
-	/** posted message buffers */
-	struct list_head        scd_buf_posted;
-	/** blocked for RPC descriptor */
-	struct list_head        scd_buf_blocked;
-};
-
-/* number of server workitems (mini-thread) for testing service */
-#define SFW_TEST_WI_MIN		256
-#define SFW_TEST_WI_MAX		2048
-/* extra buffers for tolerating buggy peers, or unbalanced number
- * of peers between partitions  */
-#define SFW_TEST_WI_EXTRA	64
-
-/* number of server workitems (mini-thread) for framework service */
-#define SFW_FRWK_WI_MIN		16
-#define SFW_FRWK_WI_MAX		256
-
-typedef struct srpc_service {
-	int			sv_id;		/* service id */
-	const char		*sv_name;	/* human readable name */
-	int			sv_wi_total;	/* total server workitems */
-	int			sv_shuttingdown;
-	int			sv_ncpts;
-	/* percpt data for srpc_service */
-	struct srpc_service_cd	**sv_cpt_data;
-	/* Service callbacks:
-	 * - sv_handler: process incoming RPC request
-	 * - sv_bulk_ready: notify bulk data
-	 */
-	int                     (*sv_handler) (srpc_server_rpc_t *);
-	int                     (*sv_bulk_ready) (srpc_server_rpc_t *, int);
-} srpc_service_t;
-
-typedef struct {
-	struct list_head sn_list;    /* chain on fw_zombie_sessions */
-	lst_sid_t        sn_id;      /* unique identifier */
-	unsigned int     sn_timeout; /* # seconds' inactivity to expire */
-	int              sn_timer_active;
-	unsigned int     sn_features;
-	stt_timer_t      sn_timer;
-	struct list_head sn_batches; /* list of batches */
-	char             sn_name[LST_NAME_SIZE];
-	atomic_t         sn_refcount;
-	atomic_t         sn_brw_errors;
-	atomic_t         sn_ping_errors;
-	unsigned long    sn_started;
-} sfw_session_t;
-
-#define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
-				       (sid0).ses_stamp == (sid1).ses_stamp)
-
-typedef struct {
-	struct list_head bat_list;      /* chain on sn_batches */
-	lst_bid_t        bat_id;	/* batch id */
-	int              bat_error;     /* error code of batch */
-	sfw_session_t    *bat_session;  /* batch's session */
-	atomic_t         bat_nactive;   /* # of active tests */
-	struct list_head bat_tests;     /* test instances */
-} sfw_batch_t;
-
-typedef struct {
-	int  (*tso_init)(struct sfw_test_instance *tsi); /* initialize test
-							  * client */
-	void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test
-							  * client */
-	int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
-			     lnet_process_id_t dest,
-			     srpc_client_rpc_t **rpc);   /* prep a tests rpc */
-	void (*tso_done_rpc)(struct sfw_test_unit *tsu,
-			     srpc_client_rpc_t *rpc);    /* done a test rpc */
-} sfw_test_client_ops_t;
-
-typedef struct sfw_test_instance {
-	struct list_head           tsi_list;            /* chain on batch */
-	int                        tsi_service;         /* test type */
-	sfw_batch_t                *tsi_batch;          /* batch */
-	sfw_test_client_ops_t      *tsi_ops;            /* test client operation
-							 */
-
-	/* public parameter for all test units */
-	unsigned int               tsi_is_client:1;     /* is test client */
-	unsigned int               tsi_stoptsu_onerr:1; /* stop tsu on error */
-	int                        tsi_concur;          /* concurrency */
-	int                        tsi_loop;            /* loop count */
-
-	/* status of test instance */
-	spinlock_t                 tsi_lock;            /* serialize */
-	unsigned int               tsi_stopping:1;      /* test is stopping */
-	atomic_t                   tsi_nactive;         /* # of active test
-							 * unit */
-	struct list_head           tsi_units;           /* test units */
-	struct list_head           tsi_free_rpcs;       /* free rpcs */
-	struct list_head           tsi_active_rpcs;     /* active rpcs */
-
-	union {
-		test_ping_req_t	   ping;    /* ping parameter */
-		test_bulk_req_t    bulk_v0; /* bulk parameter */
-		test_bulk_req_v1_t bulk_v1; /* bulk v1 parameter */
-	} tsi_u;
-} sfw_test_instance_t;
-
-/* XXX: trailing (PAGE_CACHE_SIZE % sizeof(lnet_process_id_t)) bytes at
- * the end of pages are not used */
-#define SFW_MAX_CONCUR     LST_MAX_CONCUR
-#define SFW_ID_PER_PAGE    (PAGE_CACHE_SIZE / sizeof(lnet_process_id_packed_t))
-#define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
-#define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
-
-typedef struct sfw_test_unit {
-	struct list_head    tsu_list;      /* chain on lst_test_instance */
-	lnet_process_id_t   tsu_dest;      /* id of dest node */
-	int                 tsu_loop;      /* loop count of the test */
-	sfw_test_instance_t *tsu_instance; /* pointer to test instance */
-	void                *tsu_private;  /* private data */
-	swi_workitem_t      tsu_worker;    /* workitem of the test unit */
-} sfw_test_unit_t;
-
-typedef struct sfw_test_case {
-	struct list_head      tsc_list;         /* chain on fw_tests */
-	srpc_service_t        *tsc_srv_service; /* test service */
-	sfw_test_client_ops_t *tsc_cli_ops;     /* ops of test client */
-} sfw_test_case_t;
-
-srpc_client_rpc_t *
-sfw_create_rpc(lnet_process_id_t peer, int service,
-	       unsigned features, int nbulkiov, int bulklen,
-	       void (*done) (srpc_client_rpc_t *), void *priv);
-int sfw_create_test_rpc(sfw_test_unit_t *tsu,
-			lnet_process_id_t peer, unsigned features,
-			int nblk, int blklen, srpc_client_rpc_t **rpc);
-void sfw_abort_rpc(srpc_client_rpc_t *rpc);
-void sfw_post_rpc(srpc_client_rpc_t *rpc);
-void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
-void sfw_unpack_message(srpc_msg_t *msg);
-void sfw_free_pages(srpc_server_rpc_t *rpc);
-void sfw_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i);
-int sfw_alloc_pages(srpc_server_rpc_t *rpc, int cpt, int npages, int len,
-		    int sink);
-int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
-
-srpc_client_rpc_t *
-srpc_create_client_rpc(lnet_process_id_t peer, int service,
-		       int nbulkiov, int bulklen,
-		       void (*rpc_done)(srpc_client_rpc_t *),
-		       void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
-void srpc_post_rpc(srpc_client_rpc_t *rpc);
-void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
-void srpc_free_bulk(srpc_bulk_t *bk);
-srpc_bulk_t *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len,
-			     int sink);
-int srpc_send_rpc(swi_workitem_t *wi);
-int srpc_send_reply(srpc_server_rpc_t *rpc);
-int srpc_add_service(srpc_service_t *sv);
-int srpc_remove_service(srpc_service_t *sv);
-void srpc_shutdown_service(srpc_service_t *sv);
-void srpc_abort_service(srpc_service_t *sv);
-int srpc_finish_service(srpc_service_t *sv);
-int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
-void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
-void srpc_get_counters(srpc_counters_t *cnt);
-void srpc_set_counters(const srpc_counters_t *cnt);
-
-extern struct cfs_wi_sched *lst_sched_serial;
-extern struct cfs_wi_sched **lst_sched_test;
-
-static inline int
-srpc_serv_is_framework(struct srpc_service *svc)
-{
-	return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
-}
-
-static inline int
-swi_wi_action(cfs_workitem_t *wi)
-{
-	swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem);
-
-	return swi->swi_action(swi);
-}
-
-static inline void
-swi_init_workitem(swi_workitem_t *swi, void *data,
-		  swi_action_t action, struct cfs_wi_sched *sched)
-{
-	swi->swi_sched  = sched;
-	swi->swi_action = action;
-	swi->swi_state  = SWI_STATE_NEWBORN;
-	cfs_wi_init(&swi->swi_workitem, data, swi_wi_action);
-}
-
-static inline void
-swi_schedule_workitem(swi_workitem_t *wi)
-{
-	cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
-}
-
-static inline void
-swi_exit_workitem(swi_workitem_t *swi)
-{
-	cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
-}
-
-static inline int
-swi_deschedule_workitem(swi_workitem_t *swi)
-{
-	return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
-}
-
-
-int sfw_startup(void);
-int srpc_startup(void);
-void sfw_shutdown(void);
-void srpc_shutdown(void);
-
-static inline void
-srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
-{
-	LASSERT(rpc != NULL);
-	LASSERT(!srpc_event_pending(rpc));
-	LASSERT(atomic_read(&rpc->crpc_refcount) == 0);
-
-	if (rpc->crpc_fini == NULL) {
-		LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
-	} else {
-		(*rpc->crpc_fini) (rpc);
-	}
-
-	return;
-}
-
-static inline void
-srpc_init_client_rpc (srpc_client_rpc_t *rpc, lnet_process_id_t peer,
-		      int service, int nbulkiov, int bulklen,
-		      void (*rpc_done)(srpc_client_rpc_t *),
-		      void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
-{
-	LASSERT(nbulkiov <= LNET_MAX_IOV);
-
-	memset(rpc, 0, offsetof(srpc_client_rpc_t,
-				crpc_bulk.bk_iovs[nbulkiov]));
-
-	INIT_LIST_HEAD(&rpc->crpc_list);
-	swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
-			  lst_sched_test[lnet_cpt_of_nid(peer.nid)]);
-	spin_lock_init(&rpc->crpc_lock);
-	atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
-
-	rpc->crpc_dest         = peer;
-	rpc->crpc_priv         = priv;
-	rpc->crpc_service      = service;
-	rpc->crpc_bulk.bk_len  = bulklen;
-	rpc->crpc_bulk.bk_niov = nbulkiov;
-	rpc->crpc_done         = rpc_done;
-	rpc->crpc_fini         = rpc_fini;
-	LNetInvalidateHandle(&rpc->crpc_reqstmdh);
-	LNetInvalidateHandle(&rpc->crpc_replymdh);
-	LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
-
-	/* no event is expected at this point */
-	rpc->crpc_bulkev.ev_fired  =
-	rpc->crpc_reqstev.ev_fired =
-	rpc->crpc_replyev.ev_fired = 1;
-
-	rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
-	rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
-	rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
-	return;
-}
-
-static inline const char *
-swi_state2str (int state)
-{
-#define STATE2STR(x) case x: return #x
-	switch(state) {
-		default:
-			LBUG();
-		STATE2STR(SWI_STATE_NEWBORN);
-		STATE2STR(SWI_STATE_REPLY_SUBMITTED);
-		STATE2STR(SWI_STATE_REPLY_SENT);
-		STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
-		STATE2STR(SWI_STATE_REQUEST_SENT);
-		STATE2STR(SWI_STATE_REPLY_RECEIVED);
-		STATE2STR(SWI_STATE_BULK_STARTED);
-		STATE2STR(SWI_STATE_DONE);
-	}
-#undef STATE2STR
-}
-
-#define selftest_wait_events()					\
-	do {							\
-		set_current_state(TASK_UNINTERRUPTIBLE);	\
-		schedule_timeout(cfs_time_seconds(1) / 10);	\
-	} while (0)
-
-
-#define lst_wait_until(cond, lock, fmt, ...)				\
-do {									\
-	int __I = 2;							\
-	while (!(cond)) {						\
-		CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,		\
-		       fmt, ## __VA_ARGS__);				\
-		spin_unlock(&(lock));					\
-									\
-		selftest_wait_events();					\
-									\
-		spin_lock(&(lock));					\
-	}								\
-} while (0)
-
-static inline void
-srpc_wait_service_shutdown(srpc_service_t *sv)
-{
-	int i = 2;
-
-	LASSERT(sv->sv_shuttingdown);
-
-	while (srpc_finish_service(sv) == 0) {
-		i++;
-		CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
-			"Waiting for %s service to shutdown...\n",
-			sv->sv_name);
-		selftest_wait_events();
-	}
-}
-
-extern sfw_test_client_ops_t brw_test_client;
-void brw_init_test_client(void);
-
-extern srpc_service_t brw_test_service;
-void brw_init_test_service(void);
-
-extern sfw_test_client_ops_t ping_test_client;
-void ping_init_test_client(void);
-
-extern srpc_service_t ping_test_service;
-void ping_init_test_service(void);
-
-#endif /* __SELFTEST_SELFTEST_H__ */
diff --git a/drivers/staging/lustre/lnet/selftest/timer.c b/drivers/staging/lustre/lnet/selftest/timer.c
deleted file mode 100644
index 6133b54f4a82..000000000000
--- a/drivers/staging/lustre/lnet/selftest/timer.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/timer.c
- *
- * Author: Isaac Huang <isaac@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "selftest.h"
-
-
-/*
- * Timers are implemented as a sorted queue of expiry times. The queue
- * is slotted, with each slot holding timers which expire in a
- * 2**STTIMER_MINPOLL (8) second period. The timers in each slot are
- * sorted by increasing expiry time. The number of slots is 2**7 (128),
- * to cover a time period of 1024 seconds into the future before wrapping.
- */
-#define STTIMER_MINPOLL        3   /* log2 min poll interval (8 s) */
-#define STTIMER_SLOTTIME       (1 << STTIMER_MINPOLL)
-#define STTIMER_SLOTTIMEMASK   (~(STTIMER_SLOTTIME - 1))
-#define STTIMER_NSLOTS	       (1 << 7)
-#define STTIMER_SLOT(t)	       (&stt_data.stt_hash[(((t) >> STTIMER_MINPOLL) & \
-						    (STTIMER_NSLOTS - 1))])
-
-static struct st_timer_data {
-	spinlock_t        stt_lock;
-	unsigned long     stt_prev_slot; /* start time of the slot processed
-					  * previously */
-	struct list_head  stt_hash[STTIMER_NSLOTS];
-	int               stt_shuttingdown;
-	wait_queue_head_t stt_waitq;
-	int               stt_nthreads;
-} stt_data;
-
-void
-stt_add_timer(stt_timer_t *timer)
-{
-	struct list_head *pos;
-
-	spin_lock(&stt_data.stt_lock);
-
-	LASSERT(stt_data.stt_nthreads > 0);
-	LASSERT(!stt_data.stt_shuttingdown);
-	LASSERT(timer->stt_func != NULL);
-	LASSERT(list_empty(&timer->stt_list));
-	LASSERT(cfs_time_after(timer->stt_expires, get_seconds()));
-
-	/* a simple insertion sort */
-	list_for_each_prev(pos, STTIMER_SLOT(timer->stt_expires)) {
-		stt_timer_t *old = list_entry(pos, stt_timer_t, stt_list);
-
-		if (cfs_time_aftereq(timer->stt_expires, old->stt_expires))
-			break;
-	}
-	list_add(&timer->stt_list, pos);
-
-	spin_unlock(&stt_data.stt_lock);
-}
-
-/*
- * The function returns whether it has deactivated a pending timer or not.
- * (ie. del_timer() of an inactive timer returns 0, del_timer() of an
- * active timer returns 1.)
- *
- * CAVEAT EMPTOR:
- * When 0 is returned, it is possible that timer->stt_func _is_ running on
- * another CPU.
- */
-int
-stt_del_timer(stt_timer_t *timer)
-{
-	int ret = 0;
-
-	spin_lock(&stt_data.stt_lock);
-
-	LASSERT(stt_data.stt_nthreads > 0);
-	LASSERT(!stt_data.stt_shuttingdown);
-
-	if (!list_empty(&timer->stt_list)) {
-		ret = 1;
-		list_del_init(&timer->stt_list);
-	}
-
-	spin_unlock(&stt_data.stt_lock);
-	return ret;
-}
-
-/* called with stt_data.stt_lock held */
-static int
-stt_expire_list(struct list_head *slot, unsigned long now)
-{
-	int expired = 0;
-	stt_timer_t *timer;
-
-	while (!list_empty(slot)) {
-		timer = list_entry(slot->next, stt_timer_t, stt_list);
-
-		if (cfs_time_after(timer->stt_expires, now))
-			break;
-
-		list_del_init(&timer->stt_list);
-		spin_unlock(&stt_data.stt_lock);
-
-		expired++;
-		(*timer->stt_func) (timer->stt_data);
-
-		spin_lock(&stt_data.stt_lock);
-	}
-
-	return expired;
-}
-
-static int
-stt_check_timers(unsigned long *last)
-{
-	int expired = 0;
-	unsigned long now;
-	unsigned long this_slot;
-
-	now = get_seconds();
-	this_slot = now & STTIMER_SLOTTIMEMASK;
-
-	spin_lock(&stt_data.stt_lock);
-
-	while (cfs_time_aftereq(this_slot, *last)) {
-		expired += stt_expire_list(STTIMER_SLOT(this_slot), now);
-		this_slot = cfs_time_sub(this_slot, STTIMER_SLOTTIME);
-	}
-
-	*last = now & STTIMER_SLOTTIMEMASK;
-	spin_unlock(&stt_data.stt_lock);
-	return expired;
-}
-
-
-static int
-stt_timer_main(void *arg)
-{
-	cfs_block_allsigs();
-
-	while (!stt_data.stt_shuttingdown) {
-		stt_check_timers(&stt_data.stt_prev_slot);
-
-		wait_event_timeout(stt_data.stt_waitq,
-				   stt_data.stt_shuttingdown,
-				   cfs_time_seconds(STTIMER_SLOTTIME));
-	}
-
-	spin_lock(&stt_data.stt_lock);
-	stt_data.stt_nthreads--;
-	spin_unlock(&stt_data.stt_lock);
-	return 0;
-}
-
-static int
-stt_start_timer_thread(void)
-{
-	struct task_struct *task;
-
-	LASSERT(!stt_data.stt_shuttingdown);
-
-	task = kthread_run(stt_timer_main, NULL, "st_timer");
-	if (IS_ERR(task))
-		return PTR_ERR(task);
-
-	spin_lock(&stt_data.stt_lock);
-	stt_data.stt_nthreads++;
-	spin_unlock(&stt_data.stt_lock);
-	return 0;
-}
-
-
-int
-stt_startup(void)
-{
-	int rc = 0;
-	int i;
-
-	stt_data.stt_shuttingdown = 0;
-	stt_data.stt_prev_slot = get_seconds() & STTIMER_SLOTTIMEMASK;
-
-	spin_lock_init(&stt_data.stt_lock);
-	for (i = 0; i < STTIMER_NSLOTS; i++)
-		INIT_LIST_HEAD(&stt_data.stt_hash[i]);
-
-	stt_data.stt_nthreads = 0;
-	init_waitqueue_head(&stt_data.stt_waitq);
-	rc = stt_start_timer_thread();
-	if (rc != 0)
-		CERROR("Can't spawn timer thread: %d\n", rc);
-
-	return rc;
-}
-
-void
-stt_shutdown(void)
-{
-	int i;
-
-	spin_lock(&stt_data.stt_lock);
-
-	for (i = 0; i < STTIMER_NSLOTS; i++)
-		LASSERT(list_empty(&stt_data.stt_hash[i]));
-
-	stt_data.stt_shuttingdown = 1;
-
-	wake_up(&stt_data.stt_waitq);
-	lst_wait_until(stt_data.stt_nthreads == 0, stt_data.stt_lock,
-		       "waiting for %d threads to terminate\n",
-		       stt_data.stt_nthreads);
-
-	spin_unlock(&stt_data.stt_lock);
-}
diff --git a/drivers/staging/lustre/lnet/selftest/timer.h b/drivers/staging/lustre/lnet/selftest/timer.h
deleted file mode 100644
index 2a8803d89de4..000000000000
--- a/drivers/staging/lustre/lnet/selftest/timer.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lnet/selftest/timer.h
- *
- * Author: Isaac Huang <isaac@clusterfs.com>
- */
-#ifndef __SELFTEST_TIMER_H__
-#define __SELFTEST_TIMER_H__
-
-typedef struct {
-	struct list_head stt_list;
-	unsigned long    stt_expires;
-	void             (*stt_func) (void *);
-	void             *stt_data;
-} stt_timer_t;
-
-void stt_add_timer(stt_timer_t *timer);
-int stt_del_timer(stt_timer_t *timer);
-int stt_startup(void);
-void stt_shutdown(void);
-
-#endif /* __SELFTEST_TIMER_H__ */
diff --git a/drivers/staging/lustre/lustre/Kconfig b/drivers/staging/lustre/lustre/Kconfig
deleted file mode 100644
index 62c7bba75274..000000000000
--- a/drivers/staging/lustre/lustre/Kconfig
+++ /dev/null
@@ -1,62 +0,0 @@
-config LUSTRE_FS
-	tristate "Lustre file system client support"
-	depends on INET && m && !MIPS && !XTENSA && !SUPERH
-	select LNET
-	select CRYPTO
-	select CRYPTO_CRC32
-	select CRYPTO_CRC32_PCLMUL if X86
-	select CRYPTO_CRC32C
-	select CRYPTO_MD5
-	select CRYPTO_SHA1
-	select CRYPTO_SHA256
-	select CRYPTO_SHA512
-	depends on MULTIUSER
-	help
-	  This option enables Lustre file system client support. Choose Y
-	  here if you want to access a Lustre file system cluster. To compile
-	  this file system support as a module, choose M here: the module will
-	  be called lustre.
-
-	  To mount Lustre file systems, you also need to install the user space
-	  mount.lustre and other user space commands which can be found in the
-	  lustre-client package, available from
-	  http://downloads.whamcloud.com/public/lustre/
-
-	  Lustre file system is the most popular cluster file system in high
-	  performance computing. Source code of both kernel space and user space
-	  Lustre components can also be found at
-	  http://git.whamcloud.com/?p=fs/lustre-release.git;a=summary
-
-	  If unsure, say N.
-
-	  See also http://wiki.lustre.org/
-
-config LUSTRE_OBD_MAX_IOCTL_BUFFER
-	int "Lustre obd max ioctl buffer bytes (default 8KB)"
-	depends on LUSTRE_FS
-	default 8192
-	help
-	  This option defines the maximum size of buffer in bytes that user space
-	  applications can pass to Lustre kernel module through ioctl interface.
-
-	  If unsure, use default.
-
-config LUSTRE_DEBUG_EXPENSIVE_CHECK
-	bool "Enable Lustre DEBUG checks"
-	depends on LUSTRE_FS
-	help
-	  This option is mainly for debug purpose. It enables Lustre code to do
-	  expensive checks that may have a performance impact.
-
-	  Use with caution. If unsure, say N.
-
-config LUSTRE_TRANSLATE_ERRNOS
-	bool
-	depends on LUSTRE_FS && !X86
-	default y
-
-config LUSTRE_LLITE_LLOOP
-	tristate "Lustre virtual block device"
-	depends on LUSTRE_FS && BLOCK
-	depends on !PPC_64K_PAGES && !ARM64_64K_PAGES && !MICROBLAZE_64K_PAGES && !PAGE_SIZE_64KB && !IA64_PAGE_SIZE_64KB && !PARISC_PAGE_SIZE_64KB
-	default m
diff --git a/drivers/staging/lustre/lustre/Makefile b/drivers/staging/lustre/lustre/Makefile
deleted file mode 100644
index 35d8b0b2dff4..000000000000
--- a/drivers/staging/lustre/lustre/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += libcfs/ obdclass/ ptlrpc/ fld/ osc/ mgc/ \
-			   fid/ lov/ mdc/ lmv/ llite/ obdecho/
diff --git a/drivers/staging/lustre/lustre/fid/Makefile b/drivers/staging/lustre/lustre/fid/Makefile
deleted file mode 100644
index b7ef314b4b84..000000000000
--- a/drivers/staging/lustre/lustre/fid/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += fid.o
-fid-y := fid_request.o fid_lib.o lproc_fid.o
diff --git a/drivers/staging/lustre/lustre/fid/fid_internal.h b/drivers/staging/lustre/lustre/fid/fid_internal.h
deleted file mode 100644
index 84daee1154dc..000000000000
--- a/drivers/staging/lustre/lustre/fid/fid_internal.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fid/fid_internal.h
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-#ifndef __FID_INTERNAL_H
-#define __FID_INTERNAL_H
-
-#include "../include/lustre/lustre_idl.h"
-#include "../../include/linux/libcfs/libcfs.h"
-
-/* Functions used internally in module. */
-int seq_client_alloc_super(struct lu_client_seq *seq,
-			   const struct lu_env *env);
-
-extern struct lprocfs_vars seq_client_debugfs_list[];
-
-#endif /* __FID_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/fid/fid_lib.c b/drivers/staging/lustre/lustre/fid/fid_lib.c
deleted file mode 100644
index dd65159ebb38..000000000000
--- a/drivers/staging/lustre/lustre/fid/fid_lib.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fid/fid_lib.c
- *
- * Miscellaneous fid functions.
- *
- * Author: Nikita Danilov <nikita@clusterfs.com>
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_FID
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <linux/module.h>
-#include "../include/lustre/lustre_idl.h"
-#include "../include/lustre_fid.h"
-
-/**
- * A cluster-wide range from which fid-sequences are granted to servers and
- * then clients.
- *
- * Fid namespace:
- * <pre>
- * Normal FID:        seq:64 [2^33,2^64-1]      oid:32          ver:32
- * IGIF      :        0:32, ino:32              gen:32          0:32
- * IDIF      :        0:31, 1:1, ost-index:16,  objd:48         0:32
- * </pre>
- *
- * The first 0x400 sequences of normal FID are reserved for special purpose.
- * FID_SEQ_START + 1 is for local file id generation.
- * FID_SEQ_START + 2 is for .lustre directory and its objects
- */
-const struct lu_seq_range LUSTRE_SEQ_SPACE_RANGE = {
-	FID_SEQ_NORMAL,
-	(__u64)~0ULL
-};
-EXPORT_SYMBOL(LUSTRE_SEQ_SPACE_RANGE);
-
-/* Zero range, used for init and other purposes. */
-const struct lu_seq_range LUSTRE_SEQ_ZERO_RANGE = {
-	0,
-	0
-};
-EXPORT_SYMBOL(LUSTRE_SEQ_ZERO_RANGE);
-
-/* Lustre Big Fs Lock fid. */
-const struct lu_fid LUSTRE_BFL_FID = { .f_seq = FID_SEQ_SPECIAL,
-				       .f_oid = FID_OID_SPECIAL_BFL,
-				       .f_ver = 0x0000000000000000 };
-EXPORT_SYMBOL(LUSTRE_BFL_FID);
-
-/** Special fid for ".lustre" directory */
-const struct lu_fid LU_DOT_LUSTRE_FID = { .f_seq = FID_SEQ_DOT_LUSTRE,
-					  .f_oid = FID_OID_DOT_LUSTRE,
-					  .f_ver = 0x0000000000000000 };
-EXPORT_SYMBOL(LU_DOT_LUSTRE_FID);
-
-/** Special fid for "fid" special object in .lustre */
-const struct lu_fid LU_OBF_FID = { .f_seq = FID_SEQ_DOT_LUSTRE,
-				   .f_oid = FID_OID_DOT_LUSTRE_OBF,
-				   .f_ver = 0x0000000000000000 };
-EXPORT_SYMBOL(LU_OBF_FID);
diff --git a/drivers/staging/lustre/lustre/fid/fid_request.c b/drivers/staging/lustre/lustre/fid/fid_request.c
deleted file mode 100644
index a16d577c6cb1..000000000000
--- a/drivers/staging/lustre/lustre/fid/fid_request.c
+++ /dev/null
@@ -1,560 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fid/fid_request.c
- *
- * Lustre Sequence Manager
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_FID
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <linux/module.h>
-
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_fid.h"
-/* mdc RPC locks */
-#include "../include/lustre_mdc.h"
-#include "fid_internal.h"
-
-static struct dentry *seq_debugfs_dir;
-
-static int seq_client_rpc(struct lu_client_seq *seq,
-			  struct lu_seq_range *output, __u32 opc,
-			  const char *opcname)
-{
-	struct obd_export     *exp = seq->lcs_exp;
-	struct ptlrpc_request *req;
-	struct lu_seq_range   *out, *in;
-	__u32                 *op;
-	unsigned int           debug_mask;
-	int                    rc;
-
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY,
-					LUSTRE_MDS_VERSION, SEQ_QUERY);
-	if (req == NULL)
-		return -ENOMEM;
-
-	/* Init operation code */
-	op = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_OPC);
-	*op = opc;
-
-	/* Zero out input range, this is not recovery yet. */
-	in = req_capsule_client_get(&req->rq_pill, &RMF_SEQ_RANGE);
-	range_init(in);
-
-	ptlrpc_request_set_replen(req);
-
-	in->lsr_index = seq->lcs_space.lsr_index;
-	if (seq->lcs_type == LUSTRE_SEQ_METADATA)
-		fld_range_set_mdt(in);
-	else
-		fld_range_set_ost(in);
-
-	if (opc == SEQ_ALLOC_SUPER) {
-		req->rq_request_portal = SEQ_CONTROLLER_PORTAL;
-		req->rq_reply_portal = MDC_REPLY_PORTAL;
-		/* During allocating super sequence for data object,
-		 * the current thread might hold the export of MDT0(MDT0
-		 * precreating objects on this OST), and it will send the
-		 * request to MDT0 here, so we can not keep resending the
-		 * request here, otherwise if MDT0 is failed(umounted),
-		 * it can not release the export of MDT0 */
-		if (seq->lcs_type == LUSTRE_SEQ_DATA)
-			req->rq_no_delay = req->rq_no_resend = 1;
-		debug_mask = D_CONSOLE;
-	} else {
-		if (seq->lcs_type == LUSTRE_SEQ_METADATA)
-			req->rq_request_portal = SEQ_METADATA_PORTAL;
-		else
-			req->rq_request_portal = SEQ_DATA_PORTAL;
-		debug_mask = D_INFO;
-	}
-
-	ptlrpc_at_set_req_timeout(req);
-
-	if (seq->lcs_type == LUSTRE_SEQ_METADATA)
-		mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
-	rc = ptlrpc_queue_wait(req);
-	if (seq->lcs_type == LUSTRE_SEQ_METADATA)
-		mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
-	if (rc)
-		goto out_req;
-
-	out = req_capsule_server_get(&req->rq_pill, &RMF_SEQ_RANGE);
-	*output = *out;
-
-	if (!range_is_sane(output)) {
-		CERROR("%s: Invalid range received from server: "
-		       DRANGE"\n", seq->lcs_name, PRANGE(output));
-		rc = -EINVAL;
-		goto out_req;
-	}
-
-	if (range_is_exhausted(output)) {
-		CERROR("%s: Range received from server is exhausted: "
-		       DRANGE"]\n", seq->lcs_name, PRANGE(output));
-		rc = -EINVAL;
-		goto out_req;
-	}
-
-	CDEBUG_LIMIT(debug_mask, "%s: Allocated %s-sequence "DRANGE"]\n",
-		     seq->lcs_name, opcname, PRANGE(output));
-
-out_req:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-/* Request sequence-controller node to allocate new super-sequence. */
-int seq_client_alloc_super(struct lu_client_seq *seq,
-			   const struct lu_env *env)
-{
-	int rc;
-
-	mutex_lock(&seq->lcs_mutex);
-
-	if (seq->lcs_srv) {
-		rc = 0;
-	} else {
-		/* Check whether the connection to seq controller has been
-		 * setup (lcs_exp != NULL) */
-		if (seq->lcs_exp == NULL) {
-			mutex_unlock(&seq->lcs_mutex);
-			return -EINPROGRESS;
-		}
-
-		rc = seq_client_rpc(seq, &seq->lcs_space,
-				    SEQ_ALLOC_SUPER, "super");
-	}
-	mutex_unlock(&seq->lcs_mutex);
-	return rc;
-}
-
-/* Request sequence-controller node to allocate new meta-sequence. */
-static int seq_client_alloc_meta(const struct lu_env *env,
-				 struct lu_client_seq *seq)
-{
-	int rc;
-
-	if (seq->lcs_srv) {
-		rc = 0;
-	} else {
-		do {
-			/* If meta server return -EINPROGRESS or EAGAIN,
-			 * it means meta server might not be ready to
-			 * allocate super sequence from sequence controller
-			 * (MDT0)yet */
-			rc = seq_client_rpc(seq, &seq->lcs_space,
-					    SEQ_ALLOC_META, "meta");
-		} while (rc == -EINPROGRESS || rc == -EAGAIN);
-	}
-
-	return rc;
-}
-
-/* Allocate new sequence for client. */
-static int seq_client_alloc_seq(const struct lu_env *env,
-				struct lu_client_seq *seq, u64 *seqnr)
-{
-	int rc;
-
-	LASSERT(range_is_sane(&seq->lcs_space));
-
-	if (range_is_exhausted(&seq->lcs_space)) {
-		rc = seq_client_alloc_meta(env, seq);
-		if (rc) {
-			CERROR("%s: Can't allocate new meta-sequence, rc %d\n",
-			       seq->lcs_name, rc);
-			return rc;
-		}
-		CDEBUG(D_INFO, "%s: New range - "DRANGE"\n",
-		       seq->lcs_name, PRANGE(&seq->lcs_space));
-	} else {
-		rc = 0;
-	}
-
-	LASSERT(!range_is_exhausted(&seq->lcs_space));
-	*seqnr = seq->lcs_space.lsr_start;
-	seq->lcs_space.lsr_start += 1;
-
-	CDEBUG(D_INFO, "%s: Allocated sequence [%#llx]\n", seq->lcs_name,
-	       *seqnr);
-
-	return rc;
-}
-
-static int seq_fid_alloc_prep(struct lu_client_seq *seq,
-			      wait_queue_t *link)
-{
-	if (seq->lcs_update) {
-		add_wait_queue(&seq->lcs_waitq, link);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		mutex_unlock(&seq->lcs_mutex);
-
-		schedule();
-
-		mutex_lock(&seq->lcs_mutex);
-		remove_wait_queue(&seq->lcs_waitq, link);
-		set_current_state(TASK_RUNNING);
-		return -EAGAIN;
-	}
-	++seq->lcs_update;
-	mutex_unlock(&seq->lcs_mutex);
-	return 0;
-}
-
-static void seq_fid_alloc_fini(struct lu_client_seq *seq)
-{
-	LASSERT(seq->lcs_update == 1);
-	mutex_lock(&seq->lcs_mutex);
-	--seq->lcs_update;
-	wake_up(&seq->lcs_waitq);
-}
-
-/**
- * Allocate the whole seq to the caller.
- **/
-int seq_client_get_seq(const struct lu_env *env,
-		       struct lu_client_seq *seq, u64 *seqnr)
-{
-	wait_queue_t link;
-	int rc;
-
-	LASSERT(seqnr != NULL);
-	mutex_lock(&seq->lcs_mutex);
-	init_waitqueue_entry(&link, current);
-
-	while (1) {
-		rc = seq_fid_alloc_prep(seq, &link);
-		if (rc == 0)
-			break;
-	}
-
-	rc = seq_client_alloc_seq(env, seq, seqnr);
-	if (rc) {
-		CERROR("%s: Can't allocate new sequence, rc %d\n",
-		       seq->lcs_name, rc);
-		seq_fid_alloc_fini(seq);
-		mutex_unlock(&seq->lcs_mutex);
-		return rc;
-	}
-
-	CDEBUG(D_INFO, "%s: allocate sequence [0x%16.16Lx]\n",
-	       seq->lcs_name, *seqnr);
-
-	/* Since the caller require the whole seq,
-	 * so marked this seq to be used */
-	if (seq->lcs_type == LUSTRE_SEQ_METADATA)
-		seq->lcs_fid.f_oid = LUSTRE_METADATA_SEQ_MAX_WIDTH;
-	else
-		seq->lcs_fid.f_oid = LUSTRE_DATA_SEQ_MAX_WIDTH;
-
-	seq->lcs_fid.f_seq = *seqnr;
-	seq->lcs_fid.f_ver = 0;
-	/*
-	 * Inform caller that sequence switch is performed to allow it
-	 * to setup FLD for it.
-	 */
-	seq_fid_alloc_fini(seq);
-	mutex_unlock(&seq->lcs_mutex);
-
-	return rc;
-}
-EXPORT_SYMBOL(seq_client_get_seq);
-
-/* Allocate new fid on passed client @seq and save it to @fid. */
-int seq_client_alloc_fid(const struct lu_env *env,
-			 struct lu_client_seq *seq, struct lu_fid *fid)
-{
-	wait_queue_t link;
-	int rc;
-
-	LASSERT(seq != NULL);
-	LASSERT(fid != NULL);
-
-	init_waitqueue_entry(&link, current);
-	mutex_lock(&seq->lcs_mutex);
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_SEQ_EXHAUST))
-		seq->lcs_fid.f_oid = seq->lcs_width;
-
-	while (1) {
-		u64 seqnr;
-
-		if (!fid_is_zero(&seq->lcs_fid) &&
-		    fid_oid(&seq->lcs_fid) < seq->lcs_width) {
-			/* Just bump last allocated fid and return to caller. */
-			seq->lcs_fid.f_oid += 1;
-			rc = 0;
-			break;
-		}
-
-		rc = seq_fid_alloc_prep(seq, &link);
-		if (rc)
-			continue;
-
-		rc = seq_client_alloc_seq(env, seq, &seqnr);
-		if (rc) {
-			CERROR("%s: Can't allocate new sequence, rc %d\n",
-			       seq->lcs_name, rc);
-			seq_fid_alloc_fini(seq);
-			mutex_unlock(&seq->lcs_mutex);
-			return rc;
-		}
-
-		CDEBUG(D_INFO, "%s: Switch to sequence [0x%16.16Lx]\n",
-		       seq->lcs_name, seqnr);
-
-		seq->lcs_fid.f_oid = LUSTRE_FID_INIT_OID;
-		seq->lcs_fid.f_seq = seqnr;
-		seq->lcs_fid.f_ver = 0;
-
-		/*
-		 * Inform caller that sequence switch is performed to allow it
-		 * to setup FLD for it.
-		 */
-		rc = 1;
-
-		seq_fid_alloc_fini(seq);
-		break;
-	}
-
-	*fid = seq->lcs_fid;
-	mutex_unlock(&seq->lcs_mutex);
-
-	CDEBUG(D_INFO, "%s: Allocated FID "DFID"\n", seq->lcs_name,  PFID(fid));
-	return rc;
-}
-EXPORT_SYMBOL(seq_client_alloc_fid);
-
-/*
- * Finish the current sequence due to disconnect.
- * See mdc_import_event()
- */
-void seq_client_flush(struct lu_client_seq *seq)
-{
-	wait_queue_t link;
-
-	LASSERT(seq != NULL);
-	init_waitqueue_entry(&link, current);
-	mutex_lock(&seq->lcs_mutex);
-
-	while (seq->lcs_update) {
-		add_wait_queue(&seq->lcs_waitq, &link);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		mutex_unlock(&seq->lcs_mutex);
-
-		schedule();
-
-		mutex_lock(&seq->lcs_mutex);
-		remove_wait_queue(&seq->lcs_waitq, &link);
-		set_current_state(TASK_RUNNING);
-	}
-
-	fid_zero(&seq->lcs_fid);
-	/**
-	 * this id shld not be used for seq range allocation.
-	 * set to -1 for dgb check.
-	 */
-
-	seq->lcs_space.lsr_index = -1;
-
-	range_init(&seq->lcs_space);
-	mutex_unlock(&seq->lcs_mutex);
-}
-EXPORT_SYMBOL(seq_client_flush);
-
-static void seq_client_debugfs_fini(struct lu_client_seq *seq)
-{
-	if (!IS_ERR_OR_NULL(seq->lcs_debugfs_entry))
-		ldebugfs_remove(&seq->lcs_debugfs_entry);
-}
-
-static int seq_client_debugfs_init(struct lu_client_seq *seq)
-{
-	int rc;
-
-	seq->lcs_debugfs_entry = ldebugfs_register(seq->lcs_name,
-						   seq_debugfs_dir,
-						   NULL, NULL);
-
-	if (IS_ERR_OR_NULL(seq->lcs_debugfs_entry)) {
-		CERROR("%s: LdebugFS failed in seq-init\n", seq->lcs_name);
-		rc = seq->lcs_debugfs_entry ? PTR_ERR(seq->lcs_debugfs_entry)
-					    : -ENOMEM;
-		seq->lcs_debugfs_entry = NULL;
-		return rc;
-	}
-
-	rc = ldebugfs_add_vars(seq->lcs_debugfs_entry,
-			       seq_client_debugfs_list, seq);
-	if (rc) {
-		CERROR("%s: Can't init sequence manager debugfs, rc %d\n",
-		       seq->lcs_name, rc);
-		goto out_cleanup;
-	}
-
-	return 0;
-
-out_cleanup:
-	seq_client_debugfs_fini(seq);
-	return rc;
-}
-
-int seq_client_init(struct lu_client_seq *seq,
-		    struct obd_export *exp,
-		    enum lu_cli_type type,
-		    const char *prefix,
-		    struct lu_server_seq *srv)
-{
-	int rc;
-
-	LASSERT(seq != NULL);
-	LASSERT(prefix != NULL);
-
-	seq->lcs_srv = srv;
-	seq->lcs_type = type;
-
-	mutex_init(&seq->lcs_mutex);
-	if (type == LUSTRE_SEQ_METADATA)
-		seq->lcs_width = LUSTRE_METADATA_SEQ_MAX_WIDTH;
-	else
-		seq->lcs_width = LUSTRE_DATA_SEQ_MAX_WIDTH;
-
-	init_waitqueue_head(&seq->lcs_waitq);
-	/* Make sure that things are clear before work is started. */
-	seq_client_flush(seq);
-
-	if (exp != NULL)
-		seq->lcs_exp = class_export_get(exp);
-	else if (type == LUSTRE_SEQ_METADATA)
-		LASSERT(seq->lcs_srv != NULL);
-
-	snprintf(seq->lcs_name, sizeof(seq->lcs_name),
-		 "cli-%s", prefix);
-
-	rc = seq_client_debugfs_init(seq);
-	if (rc)
-		seq_client_fini(seq);
-	return rc;
-}
-EXPORT_SYMBOL(seq_client_init);
-
-void seq_client_fini(struct lu_client_seq *seq)
-{
-	seq_client_debugfs_fini(seq);
-
-	if (seq->lcs_exp != NULL) {
-		class_export_put(seq->lcs_exp);
-		seq->lcs_exp = NULL;
-	}
-
-	seq->lcs_srv = NULL;
-}
-EXPORT_SYMBOL(seq_client_fini);
-
-int client_fid_init(struct obd_device *obd,
-		    struct obd_export *exp, enum lu_cli_type type)
-{
-	struct client_obd *cli = &obd->u.cli;
-	char *prefix;
-	int rc;
-
-	cli->cl_seq = kzalloc(sizeof(*cli->cl_seq), GFP_NOFS);
-	if (!cli->cl_seq)
-		return -ENOMEM;
-
-	prefix = kzalloc(MAX_OBD_NAME + 5, GFP_NOFS);
-	if (!prefix) {
-		rc = -ENOMEM;
-		goto out_free_seq;
-	}
-
-	snprintf(prefix, MAX_OBD_NAME + 5, "cli-%s", obd->obd_name);
-
-	/* Init client side sequence-manager */
-	rc = seq_client_init(cli->cl_seq, exp, type, prefix, NULL);
-	kfree(prefix);
-	if (rc)
-		goto out_free_seq;
-
-	return rc;
-out_free_seq:
-	kfree(cli->cl_seq);
-	cli->cl_seq = NULL;
-	return rc;
-}
-EXPORT_SYMBOL(client_fid_init);
-
-int client_fid_fini(struct obd_device *obd)
-{
-	struct client_obd *cli = &obd->u.cli;
-
-	if (cli->cl_seq != NULL) {
-		seq_client_fini(cli->cl_seq);
-		kfree(cli->cl_seq);
-		cli->cl_seq = NULL;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(client_fid_fini);
-
-static int __init fid_mod_init(void)
-{
-	seq_debugfs_dir = ldebugfs_register(LUSTRE_SEQ_NAME,
-					    debugfs_lustre_root,
-					    NULL, NULL);
-	return PTR_ERR_OR_ZERO(seq_debugfs_dir);
-}
-
-static void __exit fid_mod_exit(void)
-{
-	if (!IS_ERR_OR_NULL(seq_debugfs_dir))
-		ldebugfs_remove(&seq_debugfs_dir);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre FID Module");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("0.1.0");
-
-module_init(fid_mod_init);
-module_exit(fid_mod_exit);
diff --git a/drivers/staging/lustre/lustre/fid/lproc_fid.c b/drivers/staging/lustre/lustre/fid/lproc_fid.c
deleted file mode 100644
index cc2201c25339..000000000000
--- a/drivers/staging/lustre/lustre/fid/lproc_fid.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fid/lproc_fid.c
- *
- * Lustre Sequence Manager
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_FID
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <linux/module.h>
-
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/dt_object.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_req_layout.h"
-#include "../include/lustre_fid.h"
-#include "fid_internal.h"
-
-/* Format: [0x64BIT_INT - 0x64BIT_INT] + 32 bytes just in case */
-#define MAX_FID_RANGE_STRLEN (32 + 2 * 2 * sizeof(__u64))
-/*
- * Note: this function is only used for testing, it is no safe for production
- * use.
- */
-static int
-ldebugfs_fid_write_common(const char __user *buffer, size_t count,
-			  struct lu_seq_range *range)
-{
-	struct lu_seq_range tmp;
-	int rc;
-	char kernbuf[MAX_FID_RANGE_STRLEN];
-
-	LASSERT(range != NULL);
-
-	if (count >= sizeof(kernbuf))
-		return -EINVAL;
-
-	if (copy_from_user(kernbuf, buffer, count))
-		return -EFAULT;
-
-	kernbuf[count] = 0;
-
-	if (count == 5 && strcmp(kernbuf, "clear") == 0) {
-		memset(range, 0, sizeof(*range));
-		return count;
-	}
-
-	/* of the form "[0x0000000240000400 - 0x000000028000400]" */
-	rc = sscanf(kernbuf, "[%llx - %llx]\n",
-		    (unsigned long long *)&tmp.lsr_start,
-		    (unsigned long long *)&tmp.lsr_end);
-	if (!range_is_sane(&tmp) || range_is_zero(&tmp) ||
-	    tmp.lsr_start < range->lsr_start || tmp.lsr_end > range->lsr_end)
-		return -EINVAL;
-	*range = tmp;
-	return count;
-}
-
-/* Client side debugfs stuff */
-static ssize_t
-ldebugfs_fid_space_seq_write(struct file *file,
-			     const char __user *buffer,
-			     size_t count, loff_t *off)
-{
-	struct lu_client_seq *seq;
-	int rc;
-
-	seq = ((struct seq_file *)file->private_data)->private;
-	LASSERT(seq != NULL);
-
-	mutex_lock(&seq->lcs_mutex);
-	rc = ldebugfs_fid_write_common(buffer, count, &seq->lcs_space);
-
-	if (rc == 0) {
-		CDEBUG(D_INFO, "%s: Space: "DRANGE"\n",
-		       seq->lcs_name, PRANGE(&seq->lcs_space));
-	}
-
-	mutex_unlock(&seq->lcs_mutex);
-
-	return count;
-}
-
-static int
-ldebugfs_fid_space_seq_show(struct seq_file *m, void *unused)
-{
-	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
-
-	LASSERT(seq != NULL);
-
-	mutex_lock(&seq->lcs_mutex);
-	seq_printf(m, "[%#llx - %#llx]:%x:%s\n", PRANGE(&seq->lcs_space));
-	mutex_unlock(&seq->lcs_mutex);
-
-	return 0;
-}
-
-static ssize_t
-ldebugfs_fid_width_seq_write(struct file *file,
-			     const char __user *buffer,
-			     size_t count, loff_t *off)
-{
-	struct lu_client_seq *seq;
-	__u64  max;
-	int rc, val;
-
-	seq = ((struct seq_file *)file->private_data)->private;
-	LASSERT(seq != NULL);
-
-	rc = lprocfs_write_helper(buffer, count, &val);
-	if (rc)
-		return rc;
-
-	mutex_lock(&seq->lcs_mutex);
-	if (seq->lcs_type == LUSTRE_SEQ_DATA)
-		max = LUSTRE_DATA_SEQ_MAX_WIDTH;
-	else
-		max = LUSTRE_METADATA_SEQ_MAX_WIDTH;
-
-	if (val <= max && val > 0) {
-		seq->lcs_width = val;
-
-		CDEBUG(D_INFO, "%s: Sequence size: %llu\n", seq->lcs_name,
-		       seq->lcs_width);
-	}
-
-	mutex_unlock(&seq->lcs_mutex);
-
-	return count;
-}
-
-static int
-ldebugfs_fid_width_seq_show(struct seq_file *m, void *unused)
-{
-	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
-
-	LASSERT(seq != NULL);
-
-	mutex_lock(&seq->lcs_mutex);
-	seq_printf(m, "%llu\n", seq->lcs_width);
-	mutex_unlock(&seq->lcs_mutex);
-
-	return 0;
-}
-
-static int
-ldebugfs_fid_fid_seq_show(struct seq_file *m, void *unused)
-{
-	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
-
-	LASSERT(seq != NULL);
-
-	mutex_lock(&seq->lcs_mutex);
-	seq_printf(m, DFID "\n", PFID(&seq->lcs_fid));
-	mutex_unlock(&seq->lcs_mutex);
-
-	return 0;
-}
-
-static int
-ldebugfs_fid_server_seq_show(struct seq_file *m, void *unused)
-{
-	struct lu_client_seq *seq = (struct lu_client_seq *)m->private;
-	struct client_obd *cli;
-
-	LASSERT(seq != NULL);
-
-	if (seq->lcs_exp != NULL) {
-		cli = &seq->lcs_exp->exp_obd->u.cli;
-		seq_printf(m, "%s\n", cli->cl_target_uuid.uuid);
-	} else {
-		seq_printf(m, "%s\n", seq->lcs_srv->lss_name);
-	}
-
-	return 0;
-}
-
-LPROC_SEQ_FOPS(ldebugfs_fid_space);
-LPROC_SEQ_FOPS(ldebugfs_fid_width);
-LPROC_SEQ_FOPS_RO(ldebugfs_fid_server);
-LPROC_SEQ_FOPS_RO(ldebugfs_fid_fid);
-
-struct lprocfs_vars seq_client_debugfs_list[] = {
-	{ "space", &ldebugfs_fid_space_fops },
-	{ "width", &ldebugfs_fid_width_fops },
-	{ "server", &ldebugfs_fid_server_fops },
-	{ "fid", &ldebugfs_fid_fid_fops },
-	{ NULL }
-};
diff --git a/drivers/staging/lustre/lustre/fld/Makefile b/drivers/staging/lustre/lustre/fld/Makefile
deleted file mode 100644
index 646e315d1aa8..000000000000
--- a/drivers/staging/lustre/lustre/fld/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += fld.o
-fld-y := fld_request.o fld_cache.o lproc_fld.o
diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c
deleted file mode 100644
index 1b1066b2461c..000000000000
--- a/drivers/staging/lustre/lustre/fld/fld_cache.c
+++ /dev/null
@@ -1,546 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fld/fld_cache.c
- *
- * FLD (Fids Location Database)
- *
- * Author: Pravin Shelar <pravin.shelar@sun.com>
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_FLD
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <linux/module.h>
-#include <asm/div64.h>
-
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_ver.h"
-#include "../include/obd_support.h"
-#include "../include/lprocfs_status.h"
-
-#include "../include/dt_object.h"
-#include "../include/lustre_req_layout.h"
-#include "../include/lustre_fld.h"
-#include "fld_internal.h"
-
-/**
- * create fld cache.
- */
-struct fld_cache *fld_cache_init(const char *name,
-				 int cache_size, int cache_threshold)
-{
-	struct fld_cache *cache;
-
-	LASSERT(name != NULL);
-	LASSERT(cache_threshold < cache_size);
-
-	cache = kzalloc(sizeof(*cache), GFP_NOFS);
-	if (!cache)
-		return ERR_PTR(-ENOMEM);
-
-	INIT_LIST_HEAD(&cache->fci_entries_head);
-	INIT_LIST_HEAD(&cache->fci_lru);
-
-	cache->fci_cache_count = 0;
-	rwlock_init(&cache->fci_lock);
-
-	strlcpy(cache->fci_name, name,
-		sizeof(cache->fci_name));
-
-	cache->fci_cache_size = cache_size;
-	cache->fci_threshold = cache_threshold;
-
-	/* Init fld cache info. */
-	memset(&cache->fci_stat, 0, sizeof(cache->fci_stat));
-
-	CDEBUG(D_INFO, "%s: FLD cache - Size: %d, Threshold: %d\n",
-	       cache->fci_name, cache_size, cache_threshold);
-
-	return cache;
-}
-
-/**
- * destroy fld cache.
- */
-void fld_cache_fini(struct fld_cache *cache)
-{
-	__u64 pct;
-
-	LASSERT(cache != NULL);
-	fld_cache_flush(cache);
-
-	if (cache->fci_stat.fst_count > 0) {
-		pct = cache->fci_stat.fst_cache * 100;
-		do_div(pct, cache->fci_stat.fst_count);
-	} else {
-		pct = 0;
-	}
-
-	CDEBUG(D_INFO, "FLD cache statistics (%s):\n", cache->fci_name);
-	CDEBUG(D_INFO, "  Total reqs: %llu\n", cache->fci_stat.fst_count);
-	CDEBUG(D_INFO, "  Cache reqs: %llu\n", cache->fci_stat.fst_cache);
-	CDEBUG(D_INFO, "  Cache hits: %llu%%\n", pct);
-
-	kfree(cache);
-}
-
-/**
- * delete given node from list.
- */
-void fld_cache_entry_delete(struct fld_cache *cache,
-			    struct fld_cache_entry *node)
-{
-	list_del(&node->fce_list);
-	list_del(&node->fce_lru);
-	cache->fci_cache_count--;
-	kfree(node);
-}
-
-/**
- * fix list by checking new entry with NEXT entry in order.
- */
-static void fld_fix_new_list(struct fld_cache *cache)
-{
-	struct fld_cache_entry *f_curr;
-	struct fld_cache_entry *f_next;
-	struct lu_seq_range *c_range;
-	struct lu_seq_range *n_range;
-	struct list_head *head = &cache->fci_entries_head;
-
-restart_fixup:
-
-	list_for_each_entry_safe(f_curr, f_next, head, fce_list) {
-		c_range = &f_curr->fce_range;
-		n_range = &f_next->fce_range;
-
-		LASSERT(range_is_sane(c_range));
-		if (&f_next->fce_list == head)
-			break;
-
-		if (c_range->lsr_flags != n_range->lsr_flags)
-			continue;
-
-		LASSERTF(c_range->lsr_start <= n_range->lsr_start,
-			 "cur lsr_start "DRANGE" next lsr_start "DRANGE"\n",
-			 PRANGE(c_range), PRANGE(n_range));
-
-		/* check merge possibility with next range */
-		if (c_range->lsr_end == n_range->lsr_start) {
-			if (c_range->lsr_index != n_range->lsr_index)
-				continue;
-			n_range->lsr_start = c_range->lsr_start;
-			fld_cache_entry_delete(cache, f_curr);
-			continue;
-		}
-
-		/* check if current range overlaps with next range. */
-		if (n_range->lsr_start < c_range->lsr_end) {
-			if (c_range->lsr_index == n_range->lsr_index) {
-				n_range->lsr_start = c_range->lsr_start;
-				n_range->lsr_end = max(c_range->lsr_end,
-						       n_range->lsr_end);
-				fld_cache_entry_delete(cache, f_curr);
-			} else {
-				if (n_range->lsr_end <= c_range->lsr_end) {
-					*n_range = *c_range;
-					fld_cache_entry_delete(cache, f_curr);
-				} else
-					n_range->lsr_start = c_range->lsr_end;
-			}
-
-			/* we could have overlap over next
-			 * range too. better restart. */
-			goto restart_fixup;
-		}
-
-		/* kill duplicates */
-		if (c_range->lsr_start == n_range->lsr_start &&
-		    c_range->lsr_end == n_range->lsr_end)
-			fld_cache_entry_delete(cache, f_curr);
-	}
-}
-
-/**
- * add node to fld cache
- */
-static inline void fld_cache_entry_add(struct fld_cache *cache,
-				       struct fld_cache_entry *f_new,
-				       struct list_head *pos)
-{
-	list_add(&f_new->fce_list, pos);
-	list_add(&f_new->fce_lru, &cache->fci_lru);
-
-	cache->fci_cache_count++;
-	fld_fix_new_list(cache);
-}
-
-/**
- * Check if cache needs to be shrunk. If so - do it.
- * Remove one entry in list and so on until cache is shrunk enough.
- */
-static int fld_cache_shrink(struct fld_cache *cache)
-{
-	struct fld_cache_entry *flde;
-	struct list_head *curr;
-	int num = 0;
-
-	LASSERT(cache != NULL);
-
-	if (cache->fci_cache_count < cache->fci_cache_size)
-		return 0;
-
-	curr = cache->fci_lru.prev;
-
-	while (cache->fci_cache_count + cache->fci_threshold >
-	       cache->fci_cache_size && curr != &cache->fci_lru) {
-
-		flde = list_entry(curr, struct fld_cache_entry, fce_lru);
-		curr = curr->prev;
-		fld_cache_entry_delete(cache, flde);
-		num++;
-	}
-
-	CDEBUG(D_INFO, "%s: FLD cache - Shrunk by %d entries\n",
-			cache->fci_name, num);
-
-	return 0;
-}
-
-/**
- * kill all fld cache entries.
- */
-void fld_cache_flush(struct fld_cache *cache)
-{
-	write_lock(&cache->fci_lock);
-	cache->fci_cache_size = 0;
-	fld_cache_shrink(cache);
-	write_unlock(&cache->fci_lock);
-}
-
-/**
- * punch hole in existing range. divide this range and add new
- * entry accordingly.
- */
-
-static void fld_cache_punch_hole(struct fld_cache *cache,
-				 struct fld_cache_entry *f_curr,
-				 struct fld_cache_entry *f_new)
-{
-	const struct lu_seq_range *range = &f_new->fce_range;
-	const u64 new_start  = range->lsr_start;
-	const u64 new_end  = range->lsr_end;
-	struct fld_cache_entry *fldt;
-
-	OBD_ALLOC_GFP(fldt, sizeof(*fldt), GFP_ATOMIC);
-	if (!fldt) {
-		kfree(f_new);
-		/* overlap is not allowed, so dont mess up list. */
-		return;
-	}
-	/*  break f_curr RANGE into three RANGES:
-	 *	f_curr, f_new , fldt
-	 */
-
-	/* f_new = *range */
-
-	/* fldt */
-	fldt->fce_range.lsr_start = new_end;
-	fldt->fce_range.lsr_end = f_curr->fce_range.lsr_end;
-	fldt->fce_range.lsr_index = f_curr->fce_range.lsr_index;
-
-	/* f_curr */
-	f_curr->fce_range.lsr_end = new_start;
-
-	/* add these two entries to list */
-	fld_cache_entry_add(cache, f_new, &f_curr->fce_list);
-	fld_cache_entry_add(cache, fldt, &f_new->fce_list);
-
-	/* no need to fixup */
-}
-
-/**
- * handle range overlap in fld cache.
- */
-static void fld_cache_overlap_handle(struct fld_cache *cache,
-				struct fld_cache_entry *f_curr,
-				struct fld_cache_entry *f_new)
-{
-	const struct lu_seq_range *range = &f_new->fce_range;
-	const u64 new_start  = range->lsr_start;
-	const u64 new_end  = range->lsr_end;
-	const u32 mdt = range->lsr_index;
-
-	/* this is overlap case, these case are checking overlapping with
-	 * prev range only. fixup will handle overlapping with next range. */
-
-	if (f_curr->fce_range.lsr_index == mdt) {
-		f_curr->fce_range.lsr_start = min(f_curr->fce_range.lsr_start,
-						  new_start);
-
-		f_curr->fce_range.lsr_end = max(f_curr->fce_range.lsr_end,
-						new_end);
-
-		kfree(f_new);
-		fld_fix_new_list(cache);
-
-	} else if (new_start <= f_curr->fce_range.lsr_start &&
-			f_curr->fce_range.lsr_end <= new_end) {
-		/* case 1: new range completely overshadowed existing range.
-		 *	 e.g. whole range migrated. update fld cache entry */
-
-		f_curr->fce_range = *range;
-		kfree(f_new);
-		fld_fix_new_list(cache);
-
-	} else if (f_curr->fce_range.lsr_start < new_start &&
-			new_end < f_curr->fce_range.lsr_end) {
-		/* case 2: new range fit within existing range. */
-
-		fld_cache_punch_hole(cache, f_curr, f_new);
-
-	} else  if (new_end <= f_curr->fce_range.lsr_end) {
-		/* case 3: overlap:
-		 *	 [new_start [c_start  new_end)  c_end)
-		 */
-
-		LASSERT(new_start <= f_curr->fce_range.lsr_start);
-
-		f_curr->fce_range.lsr_start = new_end;
-		fld_cache_entry_add(cache, f_new, f_curr->fce_list.prev);
-
-	} else if (f_curr->fce_range.lsr_start <= new_start) {
-		/* case 4: overlap:
-		 *	 [c_start [new_start c_end) new_end)
-		 */
-
-		LASSERT(f_curr->fce_range.lsr_end <= new_end);
-
-		f_curr->fce_range.lsr_end = new_start;
-		fld_cache_entry_add(cache, f_new, &f_curr->fce_list);
-	} else
-		CERROR("NEW range ="DRANGE" curr = "DRANGE"\n",
-		       PRANGE(range), PRANGE(&f_curr->fce_range));
-}
-
-struct fld_cache_entry
-*fld_cache_entry_create(const struct lu_seq_range *range)
-{
-	struct fld_cache_entry *f_new;
-
-	LASSERT(range_is_sane(range));
-
-	f_new = kzalloc(sizeof(*f_new), GFP_NOFS);
-	if (!f_new)
-		return ERR_PTR(-ENOMEM);
-
-	f_new->fce_range = *range;
-	return f_new;
-}
-
-/**
- * Insert FLD entry in FLD cache.
- *
- * This function handles all cases of merging and breaking up of
- * ranges.
- */
-int fld_cache_insert_nolock(struct fld_cache *cache,
-			    struct fld_cache_entry *f_new)
-{
-	struct fld_cache_entry *f_curr;
-	struct fld_cache_entry *n;
-	struct list_head *head;
-	struct list_head *prev = NULL;
-	const u64 new_start  = f_new->fce_range.lsr_start;
-	const u64 new_end  = f_new->fce_range.lsr_end;
-	__u32 new_flags  = f_new->fce_range.lsr_flags;
-
-	/*
-	 * Duplicate entries are eliminated in insert op.
-	 * So we don't need to search new entry before starting
-	 * insertion loop.
-	 */
-
-	if (!cache->fci_no_shrink)
-		fld_cache_shrink(cache);
-
-	head = &cache->fci_entries_head;
-
-	list_for_each_entry_safe(f_curr, n, head, fce_list) {
-		/* add list if next is end of list */
-		if (new_end < f_curr->fce_range.lsr_start ||
-		   (new_end == f_curr->fce_range.lsr_start &&
-		    new_flags != f_curr->fce_range.lsr_flags))
-			break;
-
-		prev = &f_curr->fce_list;
-		/* check if this range is to left of new range. */
-		if (new_start < f_curr->fce_range.lsr_end &&
-		    new_flags == f_curr->fce_range.lsr_flags) {
-			fld_cache_overlap_handle(cache, f_curr, f_new);
-			goto out;
-		}
-	}
-
-	if (prev == NULL)
-		prev = head;
-
-	CDEBUG(D_INFO, "insert range "DRANGE"\n", PRANGE(&f_new->fce_range));
-	/* Add new entry to cache and lru list. */
-	fld_cache_entry_add(cache, f_new, prev);
-out:
-	return 0;
-}
-
-int fld_cache_insert(struct fld_cache *cache,
-		     const struct lu_seq_range *range)
-{
-	struct fld_cache_entry	*flde;
-	int rc;
-
-	flde = fld_cache_entry_create(range);
-	if (IS_ERR(flde))
-		return PTR_ERR(flde);
-
-	write_lock(&cache->fci_lock);
-	rc = fld_cache_insert_nolock(cache, flde);
-	write_unlock(&cache->fci_lock);
-	if (rc)
-		kfree(flde);
-
-	return rc;
-}
-
-void fld_cache_delete_nolock(struct fld_cache *cache,
-		      const struct lu_seq_range *range)
-{
-	struct fld_cache_entry *flde;
-	struct fld_cache_entry *tmp;
-	struct list_head *head;
-
-	head = &cache->fci_entries_head;
-	list_for_each_entry_safe(flde, tmp, head, fce_list) {
-		/* add list if next is end of list */
-		if (range->lsr_start == flde->fce_range.lsr_start ||
-		   (range->lsr_end == flde->fce_range.lsr_end &&
-		    range->lsr_flags == flde->fce_range.lsr_flags)) {
-			fld_cache_entry_delete(cache, flde);
-			break;
-		}
-	}
-}
-
-/**
- * Delete FLD entry in FLD cache.
- *
- */
-void fld_cache_delete(struct fld_cache *cache,
-		      const struct lu_seq_range *range)
-{
-	write_lock(&cache->fci_lock);
-	fld_cache_delete_nolock(cache, range);
-	write_unlock(&cache->fci_lock);
-}
-
-struct fld_cache_entry
-*fld_cache_entry_lookup_nolock(struct fld_cache *cache,
-			      struct lu_seq_range *range)
-{
-	struct fld_cache_entry *flde;
-	struct fld_cache_entry *got = NULL;
-	struct list_head *head;
-
-	head = &cache->fci_entries_head;
-	list_for_each_entry(flde, head, fce_list) {
-		if (range->lsr_start == flde->fce_range.lsr_start ||
-		   (range->lsr_end == flde->fce_range.lsr_end &&
-		    range->lsr_flags == flde->fce_range.lsr_flags)) {
-			got = flde;
-			break;
-		}
-	}
-
-	return got;
-}
-
-/**
- * lookup \a seq sequence for range in fld cache.
- */
-struct fld_cache_entry
-*fld_cache_entry_lookup(struct fld_cache *cache, struct lu_seq_range *range)
-{
-	struct fld_cache_entry *got = NULL;
-
-	read_lock(&cache->fci_lock);
-	got = fld_cache_entry_lookup_nolock(cache, range);
-	read_unlock(&cache->fci_lock);
-	return got;
-}
-
-/**
- * lookup \a seq sequence for range in fld cache.
- */
-int fld_cache_lookup(struct fld_cache *cache,
-		     const u64 seq, struct lu_seq_range *range)
-{
-	struct fld_cache_entry *flde;
-	struct fld_cache_entry *prev = NULL;
-	struct list_head *head;
-
-	read_lock(&cache->fci_lock);
-	head = &cache->fci_entries_head;
-
-	cache->fci_stat.fst_count++;
-	list_for_each_entry(flde, head, fce_list) {
-		if (flde->fce_range.lsr_start > seq) {
-			if (prev != NULL)
-				*range = prev->fce_range;
-			break;
-		}
-
-		prev = flde;
-		if (range_within(&flde->fce_range, seq)) {
-			*range = flde->fce_range;
-
-			cache->fci_stat.fst_cache++;
-			read_unlock(&cache->fci_lock);
-			return 0;
-		}
-	}
-	read_unlock(&cache->fci_lock);
-	return -ENOENT;
-}
diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h b/drivers/staging/lustre/lustre/fld/fld_internal.h
deleted file mode 100644
index 844576b9bc6f..000000000000
--- a/drivers/staging/lustre/lustre/fld/fld_internal.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fld/fld_internal.h
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- * Author: Tom WangDi <wangdi@clusterfs.com>
- */
-#ifndef __FLD_INTERNAL_H
-#define __FLD_INTERNAL_H
-
-#include "../include/lustre/lustre_idl.h"
-#include "../include/dt_object.h"
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/lustre_req_layout.h"
-#include "../include/lustre_fld.h"
-
-enum {
-	LUSTRE_FLD_INIT = 1 << 0,
-	LUSTRE_FLD_RUN  = 1 << 1
-};
-
-struct fld_stats {
-	__u64   fst_count;
-	__u64   fst_cache;
-	__u64   fst_inflight;
-};
-
-typedef int (*fld_hash_func_t) (struct lu_client_fld *, __u64);
-
-typedef struct lu_fld_target *
-(*fld_scan_func_t) (struct lu_client_fld *, __u64);
-
-struct lu_fld_hash {
-	const char	      *fh_name;
-	fld_hash_func_t	  fh_hash_func;
-	fld_scan_func_t	  fh_scan_func;
-};
-
-struct fld_cache_entry {
-	struct list_head	       fce_lru;
-	struct list_head	       fce_list;
-	/**
-	 * fld cache entries are sorted on range->lsr_start field. */
-	struct lu_seq_range      fce_range;
-};
-
-struct fld_cache {
-	/**
-	 * Cache guard, protects fci_hash mostly because others immutable after
-	 * init is finished.
-	 */
-	rwlock_t		 fci_lock;
-
-	/**
-	 * Cache shrink threshold */
-	int		      fci_threshold;
-
-	/**
-	 * Preferred number of cached entries */
-	int		      fci_cache_size;
-
-	/**
-	 * Current number of cached entries. Protected by \a fci_lock */
-	int		      fci_cache_count;
-
-	/**
-	 * LRU list fld entries. */
-	struct list_head	       fci_lru;
-
-	/**
-	 * sorted fld entries. */
-	struct list_head	       fci_entries_head;
-
-	/**
-	 * Cache statistics. */
-	struct fld_stats	 fci_stat;
-
-	/**
-	 * Cache name used for debug and messages. */
-	char		     fci_name[LUSTRE_MDT_MAXNAMELEN];
-	unsigned int		 fci_no_shrink:1;
-};
-
-enum fld_op {
-	FLD_CREATE = 0,
-	FLD_DELETE = 1,
-	FLD_LOOKUP = 2
-};
-
-enum {
-	/* 4M of FLD cache will not hurt client a lot. */
-	FLD_SERVER_CACHE_SIZE      = (4 * 0x100000),
-
-	/* 1M of FLD cache will not hurt client a lot. */
-	FLD_CLIENT_CACHE_SIZE      = (1 * 0x100000)
-};
-
-enum {
-	/* Cache threshold is 10 percent of size. */
-	FLD_SERVER_CACHE_THRESHOLD = 10,
-
-	/* Cache threshold is 10 percent of size. */
-	FLD_CLIENT_CACHE_THRESHOLD = 10
-};
-
-extern struct lu_fld_hash fld_hash[];
-
-int fld_client_rpc(struct obd_export *exp,
-		   struct lu_seq_range *range, __u32 fld_op);
-
-extern struct lprocfs_vars fld_client_debugfs_list[];
-
-struct fld_cache *fld_cache_init(const char *name,
-				 int cache_size, int cache_threshold);
-
-void fld_cache_fini(struct fld_cache *cache);
-
-void fld_cache_flush(struct fld_cache *cache);
-
-int fld_cache_insert(struct fld_cache *cache,
-		     const struct lu_seq_range *range);
-
-struct fld_cache_entry
-*fld_cache_entry_create(const struct lu_seq_range *range);
-
-int fld_cache_insert_nolock(struct fld_cache *cache,
-			    struct fld_cache_entry *f_new);
-void fld_cache_delete(struct fld_cache *cache,
-		      const struct lu_seq_range *range);
-void fld_cache_delete_nolock(struct fld_cache *cache,
-			     const struct lu_seq_range *range);
-int fld_cache_lookup(struct fld_cache *cache,
-		     const u64 seq, struct lu_seq_range *range);
-
-struct fld_cache_entry*
-fld_cache_entry_lookup(struct fld_cache *cache, struct lu_seq_range *range);
-void fld_cache_entry_delete(struct fld_cache *cache,
-			    struct fld_cache_entry *node);
-void fld_dump_cache_entries(struct fld_cache *cache);
-
-struct fld_cache_entry
-*fld_cache_entry_lookup_nolock(struct fld_cache *cache,
-			      struct lu_seq_range *range);
-int fld_write_range(const struct lu_env *env, struct dt_object *dt,
-		    const struct lu_seq_range *range, struct thandle *th);
-
-static inline const char *
-fld_target_name(struct lu_fld_target *tar)
-{
-	if (tar->ft_srv != NULL)
-		return tar->ft_srv->lsf_name;
-
-	return (const char *)tar->ft_exp->exp_obd->obd_name;
-}
-
-#endif /* __FLD_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
deleted file mode 100644
index 1e450bf95383..000000000000
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ /dev/null
@@ -1,510 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fld/fld_request.c
- *
- * FLD (Fids Location Database)
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_FLD
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <linux/module.h>
-#include <asm/div64.h>
-
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_ver.h"
-#include "../include/obd_support.h"
-#include "../include/lprocfs_status.h"
-
-#include "../include/dt_object.h"
-#include "../include/lustre_req_layout.h"
-#include "../include/lustre_fld.h"
-#include "../include/lustre_mdc.h"
-#include "fld_internal.h"
-
-/* TODO: these 3 functions are copies of flow-control code from mdc_lib.c
- * It should be common thing. The same about mdc RPC lock */
-static int fld_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
-{
-	int rc;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = list_empty(&mcw->mcw_entry);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
-};
-
-static void fld_enter_request(struct client_obd *cli)
-{
-	struct mdc_cache_waiter mcw;
-	struct l_wait_info lwi = { 0 };
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-		list_add_tail(&mcw.mcw_entry, &cli->cl_cache_waiters);
-		init_waitqueue_head(&mcw.mcw_waitq);
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-		l_wait_event(mcw.mcw_waitq, fld_req_avail(cli, &mcw), &lwi);
-	} else {
-		cli->cl_r_in_flight++;
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-	}
-}
-
-static void fld_exit_request(struct client_obd *cli)
-{
-	struct list_head *l, *tmp;
-	struct mdc_cache_waiter *mcw;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	cli->cl_r_in_flight--;
-	list_for_each_safe(l, tmp, &cli->cl_cache_waiters) {
-
-		if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-			/* No free request slots anymore */
-			break;
-		}
-
-		mcw = list_entry(l, struct mdc_cache_waiter, mcw_entry);
-		list_del_init(&mcw->mcw_entry);
-		cli->cl_r_in_flight++;
-		wake_up(&mcw->mcw_waitq);
-	}
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-}
-
-static int fld_rrb_hash(struct lu_client_fld *fld, u64 seq)
-{
-	LASSERT(fld->lcf_count > 0);
-	return do_div(seq, fld->lcf_count);
-}
-
-static struct lu_fld_target *
-fld_rrb_scan(struct lu_client_fld *fld, u64 seq)
-{
-	struct lu_fld_target *target;
-	int hash;
-
-	/* Because almost all of special sequence located in MDT0,
-	 * it should go to index 0 directly, instead of calculating
-	 * hash again, and also if other MDTs is not being connected,
-	 * the fld lookup requests(for seq on MDT0) should not be
-	 * blocked because of other MDTs */
-	if (fid_seq_is_norm(seq))
-		hash = fld_rrb_hash(fld, seq);
-	else
-		hash = 0;
-
-again:
-	list_for_each_entry(target, &fld->lcf_targets, ft_chain) {
-		if (target->ft_idx == hash)
-			return target;
-	}
-
-	if (hash != 0) {
-		/* It is possible the remote target(MDT) are not connected to
-		 * with client yet, so we will refer this to MDT0, which should
-		 * be connected during mount */
-		hash = 0;
-		goto again;
-	}
-
-	CERROR("%s: Can't find target by hash %d (seq %#llx). Targets (%d):\n",
-		fld->lcf_name, hash, seq, fld->lcf_count);
-
-	list_for_each_entry(target, &fld->lcf_targets, ft_chain) {
-		const char *srv_name = target->ft_srv != NULL  ?
-			target->ft_srv->lsf_name : "<null>";
-		const char *exp_name = target->ft_exp != NULL ?
-			(char *)target->ft_exp->exp_obd->obd_uuid.uuid :
-			"<null>";
-
-		CERROR("  exp: 0x%p (%s), srv: 0x%p (%s), idx: %llu\n",
-		       target->ft_exp, exp_name, target->ft_srv,
-		       srv_name, target->ft_idx);
-	}
-
-	/*
-	 * If target is not found, there is logical error anyway, so here is
-	 * LBUG() to catch this situation.
-	 */
-	LBUG();
-	return NULL;
-}
-
-struct lu_fld_hash fld_hash[] = {
-	{
-		.fh_name = "RRB",
-		.fh_hash_func = fld_rrb_hash,
-		.fh_scan_func = fld_rrb_scan
-	},
-	{
-		NULL,
-	}
-};
-
-static struct lu_fld_target *
-fld_client_get_target(struct lu_client_fld *fld, u64 seq)
-{
-	struct lu_fld_target *target;
-
-	LASSERT(fld->lcf_hash != NULL);
-
-	spin_lock(&fld->lcf_lock);
-	target = fld->lcf_hash->fh_scan_func(fld, seq);
-	spin_unlock(&fld->lcf_lock);
-
-	if (target != NULL) {
-		CDEBUG(D_INFO, "%s: Found target (idx %llu) by seq %#llx\n",
-		       fld->lcf_name, target->ft_idx, seq);
-	}
-
-	return target;
-}
-
-/*
- * Add export to FLD. This is usually done by CMM and LMV as they are main users
- * of FLD module.
- */
-int fld_client_add_target(struct lu_client_fld *fld,
-			  struct lu_fld_target *tar)
-{
-	const char *name;
-	struct lu_fld_target *target, *tmp;
-
-	LASSERT(tar != NULL);
-	name = fld_target_name(tar);
-	LASSERT(name != NULL);
-	LASSERT(tar->ft_srv != NULL || tar->ft_exp != NULL);
-
-	if (fld->lcf_flags != LUSTRE_FLD_INIT) {
-		CERROR("%s: Attempt to add target %s (idx %llu) on fly - skip it\n",
-			fld->lcf_name, name, tar->ft_idx);
-		return 0;
-	}
-	CDEBUG(D_INFO, "%s: Adding target %s (idx %llu)\n",
-			fld->lcf_name, name, tar->ft_idx);
-
-	target = kzalloc(sizeof(*target), GFP_NOFS);
-	if (!target)
-		return -ENOMEM;
-
-	spin_lock(&fld->lcf_lock);
-	list_for_each_entry(tmp, &fld->lcf_targets, ft_chain) {
-		if (tmp->ft_idx == tar->ft_idx) {
-			spin_unlock(&fld->lcf_lock);
-			kfree(target);
-			CERROR("Target %s exists in FLD and known as %s:#%llu\n",
-			       name, fld_target_name(tmp), tmp->ft_idx);
-			return -EEXIST;
-		}
-	}
-
-	target->ft_exp = tar->ft_exp;
-	if (target->ft_exp != NULL)
-		class_export_get(target->ft_exp);
-	target->ft_srv = tar->ft_srv;
-	target->ft_idx = tar->ft_idx;
-
-	list_add_tail(&target->ft_chain,
-			  &fld->lcf_targets);
-
-	fld->lcf_count++;
-	spin_unlock(&fld->lcf_lock);
-
-	return 0;
-}
-EXPORT_SYMBOL(fld_client_add_target);
-
-/* Remove export from FLD */
-int fld_client_del_target(struct lu_client_fld *fld, __u64 idx)
-{
-	struct lu_fld_target *target, *tmp;
-
-	spin_lock(&fld->lcf_lock);
-	list_for_each_entry_safe(target, tmp,
-				     &fld->lcf_targets, ft_chain) {
-		if (target->ft_idx == idx) {
-			fld->lcf_count--;
-			list_del(&target->ft_chain);
-			spin_unlock(&fld->lcf_lock);
-
-			if (target->ft_exp != NULL)
-				class_export_put(target->ft_exp);
-
-			kfree(target);
-			return 0;
-		}
-	}
-	spin_unlock(&fld->lcf_lock);
-	return -ENOENT;
-}
-EXPORT_SYMBOL(fld_client_del_target);
-
-static struct dentry *fld_debugfs_dir;
-
-static int fld_client_debugfs_init(struct lu_client_fld *fld)
-{
-	int rc;
-
-	fld->lcf_debugfs_entry = ldebugfs_register(fld->lcf_name,
-						   fld_debugfs_dir,
-						   NULL, NULL);
-
-	if (IS_ERR_OR_NULL(fld->lcf_debugfs_entry)) {
-		CERROR("%s: LdebugFS failed in fld-init\n", fld->lcf_name);
-		rc = fld->lcf_debugfs_entry ? PTR_ERR(fld->lcf_debugfs_entry)
-					    : -ENOMEM;
-		fld->lcf_debugfs_entry = NULL;
-		return rc;
-	}
-
-	rc = ldebugfs_add_vars(fld->lcf_debugfs_entry,
-			       fld_client_debugfs_list, fld);
-	if (rc) {
-		CERROR("%s: Can't init FLD debufs, rc %d\n", fld->lcf_name, rc);
-		goto out_cleanup;
-	}
-
-	return 0;
-
-out_cleanup:
-	fld_client_debugfs_fini(fld);
-	return rc;
-}
-
-void fld_client_debugfs_fini(struct lu_client_fld *fld)
-{
-	if (!IS_ERR_OR_NULL(fld->lcf_debugfs_entry))
-		ldebugfs_remove(&fld->lcf_debugfs_entry);
-}
-EXPORT_SYMBOL(fld_client_debugfs_fini);
-
-static inline int hash_is_sane(int hash)
-{
-	return (hash >= 0 && hash < ARRAY_SIZE(fld_hash));
-}
-
-int fld_client_init(struct lu_client_fld *fld,
-		    const char *prefix, int hash)
-{
-	int cache_size, cache_threshold;
-	int rc;
-
-	LASSERT(fld != NULL);
-
-	snprintf(fld->lcf_name, sizeof(fld->lcf_name),
-		 "cli-%s", prefix);
-
-	if (!hash_is_sane(hash)) {
-		CERROR("%s: Wrong hash function %#x\n",
-		       fld->lcf_name, hash);
-		return -EINVAL;
-	}
-
-	fld->lcf_count = 0;
-	spin_lock_init(&fld->lcf_lock);
-	fld->lcf_hash = &fld_hash[hash];
-	fld->lcf_flags = LUSTRE_FLD_INIT;
-	INIT_LIST_HEAD(&fld->lcf_targets);
-
-	cache_size = FLD_CLIENT_CACHE_SIZE /
-		sizeof(struct fld_cache_entry);
-
-	cache_threshold = cache_size *
-		FLD_CLIENT_CACHE_THRESHOLD / 100;
-
-	fld->lcf_cache = fld_cache_init(fld->lcf_name,
-					cache_size, cache_threshold);
-	if (IS_ERR(fld->lcf_cache)) {
-		rc = PTR_ERR(fld->lcf_cache);
-		fld->lcf_cache = NULL;
-		goto out;
-	}
-
-	rc = fld_client_debugfs_init(fld);
-	if (rc)
-		goto out;
-out:
-	if (rc)
-		fld_client_fini(fld);
-	else
-		CDEBUG(D_INFO, "%s: Using \"%s\" hash\n",
-		       fld->lcf_name, fld->lcf_hash->fh_name);
-	return rc;
-}
-EXPORT_SYMBOL(fld_client_init);
-
-void fld_client_fini(struct lu_client_fld *fld)
-{
-	struct lu_fld_target *target, *tmp;
-
-	spin_lock(&fld->lcf_lock);
-	list_for_each_entry_safe(target, tmp,
-				     &fld->lcf_targets, ft_chain) {
-		fld->lcf_count--;
-		list_del(&target->ft_chain);
-		if (target->ft_exp != NULL)
-			class_export_put(target->ft_exp);
-		kfree(target);
-	}
-	spin_unlock(&fld->lcf_lock);
-
-	if (fld->lcf_cache != NULL) {
-		if (!IS_ERR(fld->lcf_cache))
-			fld_cache_fini(fld->lcf_cache);
-		fld->lcf_cache = NULL;
-	}
-}
-EXPORT_SYMBOL(fld_client_fini);
-
-int fld_client_rpc(struct obd_export *exp,
-		   struct lu_seq_range *range, __u32 fld_op)
-{
-	struct ptlrpc_request *req;
-	struct lu_seq_range   *prange;
-	__u32		 *op;
-	int		    rc;
-	struct obd_import     *imp;
-
-	LASSERT(exp != NULL);
-
-	imp = class_exp2cliimp(exp);
-	req = ptlrpc_request_alloc_pack(imp, &RQF_FLD_QUERY, LUSTRE_MDS_VERSION,
-					FLD_QUERY);
-	if (req == NULL)
-		return -ENOMEM;
-
-	op = req_capsule_client_get(&req->rq_pill, &RMF_FLD_OPC);
-	*op = fld_op;
-
-	prange = req_capsule_client_get(&req->rq_pill, &RMF_FLD_MDFLD);
-	*prange = *range;
-
-	ptlrpc_request_set_replen(req);
-	req->rq_request_portal = FLD_REQUEST_PORTAL;
-	req->rq_reply_portal = MDC_REPLY_PORTAL;
-	ptlrpc_at_set_req_timeout(req);
-
-	if (fld_op == FLD_LOOKUP &&
-	    imp->imp_connect_flags_orig & OBD_CONNECT_MDS_MDS)
-		req->rq_allow_replay = 1;
-
-	if (fld_op != FLD_LOOKUP)
-		mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
-	fld_enter_request(&exp->exp_obd->u.cli);
-	rc = ptlrpc_queue_wait(req);
-	fld_exit_request(&exp->exp_obd->u.cli);
-	if (fld_op != FLD_LOOKUP)
-		mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
-	if (rc)
-		goto out_req;
-
-	prange = req_capsule_server_get(&req->rq_pill, &RMF_FLD_MDFLD);
-	if (prange == NULL) {
-		rc = -EFAULT;
-		goto out_req;
-	}
-	*range = *prange;
-out_req:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-int fld_client_lookup(struct lu_client_fld *fld, u64 seq, u32 *mds,
-		      __u32 flags, const struct lu_env *env)
-{
-	struct lu_seq_range res = { 0 };
-	struct lu_fld_target *target;
-	int rc;
-
-	fld->lcf_flags |= LUSTRE_FLD_RUN;
-
-	rc = fld_cache_lookup(fld->lcf_cache, seq, &res);
-	if (rc == 0) {
-		*mds = res.lsr_index;
-		return 0;
-	}
-
-	/* Can not find it in the cache */
-	target = fld_client_get_target(fld, seq);
-	LASSERT(target != NULL);
-
-	CDEBUG(D_INFO, "%s: Lookup fld entry (seq: %#llx) on target %s (idx %llu)\n",
-			fld->lcf_name, seq, fld_target_name(target), target->ft_idx);
-
-	res.lsr_start = seq;
-	fld_range_set_type(&res, flags);
-	rc = fld_client_rpc(target->ft_exp, &res, FLD_LOOKUP);
-
-	if (rc == 0) {
-		*mds = res.lsr_index;
-
-		fld_cache_insert(fld->lcf_cache, &res);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(fld_client_lookup);
-
-void fld_client_flush(struct lu_client_fld *fld)
-{
-	fld_cache_flush(fld->lcf_cache);
-}
-EXPORT_SYMBOL(fld_client_flush);
-
-static int __init fld_mod_init(void)
-{
-	fld_debugfs_dir = ldebugfs_register(LUSTRE_FLD_NAME,
-					    debugfs_lustre_root,
-					    NULL, NULL);
-	return PTR_ERR_OR_ZERO(fld_debugfs_dir);
-}
-
-static void __exit fld_mod_exit(void)
-{
-	if (!IS_ERR_OR_NULL(fld_debugfs_dir))
-		ldebugfs_remove(&fld_debugfs_dir);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre FLD");
-MODULE_LICENSE("GPL");
-
-module_init(fld_mod_init)
-module_exit(fld_mod_exit)
diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c
deleted file mode 100644
index da822101e005..000000000000
--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/fld/lproc_fld.c
- *
- * FLD (FIDs Location Database)
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- *	Di Wang <di.wang@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_FLD
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <linux/module.h>
-
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/dt_object.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_req_layout.h"
-#include "../include/lustre_fld.h"
-#include "../include/lustre_fid.h"
-#include "fld_internal.h"
-
-static int
-fld_debugfs_targets_seq_show(struct seq_file *m, void *unused)
-{
-	struct lu_client_fld *fld = (struct lu_client_fld *)m->private;
-	struct lu_fld_target *target;
-
-	LASSERT(fld != NULL);
-
-	spin_lock(&fld->lcf_lock);
-	list_for_each_entry(target,
-				&fld->lcf_targets, ft_chain)
-		seq_printf(m, "%s\n", fld_target_name(target));
-	spin_unlock(&fld->lcf_lock);
-
-	return 0;
-}
-
-static int
-fld_debugfs_hash_seq_show(struct seq_file *m, void *unused)
-{
-	struct lu_client_fld *fld = (struct lu_client_fld *)m->private;
-
-	LASSERT(fld != NULL);
-
-	spin_lock(&fld->lcf_lock);
-	seq_printf(m, "%s\n", fld->lcf_hash->fh_name);
-	spin_unlock(&fld->lcf_lock);
-
-	return 0;
-}
-
-static ssize_t
-fld_debugfs_hash_seq_write(struct file *file,
-			   const char __user *buffer,
-			   size_t count, loff_t *off)
-{
-	struct lu_client_fld *fld;
-	struct lu_fld_hash *hash = NULL;
-	char fh_name[8];
-	int i;
-
-	if (count > sizeof(fh_name))
-		return -ENAMETOOLONG;
-
-	if (copy_from_user(fh_name, buffer, count) != 0)
-		return -EFAULT;
-
-	fld = ((struct seq_file *)file->private_data)->private;
-	LASSERT(fld != NULL);
-
-	for (i = 0; fld_hash[i].fh_name != NULL; i++) {
-		if (count != strlen(fld_hash[i].fh_name))
-			continue;
-
-		if (!strncmp(fld_hash[i].fh_name, fh_name, count)) {
-			hash = &fld_hash[i];
-			break;
-		}
-	}
-
-	if (hash != NULL) {
-		spin_lock(&fld->lcf_lock);
-		fld->lcf_hash = hash;
-		spin_unlock(&fld->lcf_lock);
-
-		CDEBUG(D_INFO, "%s: Changed hash to \"%s\"\n",
-		       fld->lcf_name, hash->fh_name);
-	}
-
-	return count;
-}
-
-static ssize_t
-fld_debugfs_cache_flush_write(struct file *file, const char __user *buffer,
-			      size_t count, loff_t *pos)
-{
-	struct lu_client_fld *fld = file->private_data;
-
-	LASSERT(fld != NULL);
-
-	fld_cache_flush(fld->lcf_cache);
-
-	CDEBUG(D_INFO, "%s: Lookup cache is flushed\n", fld->lcf_name);
-
-	return count;
-}
-
-static int
-fld_debugfs_cache_flush_release(struct inode *inode, struct file *file)
-{
-	file->private_data = NULL;
-	return 0;
-}
-
-static struct file_operations fld_debugfs_cache_flush_fops = {
-	.owner		= THIS_MODULE,
-	.open           = simple_open,
-	.write		= fld_debugfs_cache_flush_write,
-	.release	= fld_debugfs_cache_flush_release,
-};
-
-LPROC_SEQ_FOPS_RO(fld_debugfs_targets);
-LPROC_SEQ_FOPS(fld_debugfs_hash);
-
-struct lprocfs_vars fld_client_debugfs_list[] = {
-	{ "targets",	 &fld_debugfs_targets_fops },
-	{ "hash",	 &fld_debugfs_hash_fops },
-	{ "cache_flush", &fld_debugfs_cache_flush_fops },
-	{ NULL }
-};
diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h
deleted file mode 100644
index d56c8bea89c4..000000000000
--- a/drivers/staging/lustre/lustre/include/cl_object.h
+++ /dev/null
@@ -1,3287 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#ifndef _LUSTRE_CL_OBJECT_H
-#define _LUSTRE_CL_OBJECT_H
-
-/** \defgroup clio clio
- *
- * Client objects implement io operations and cache pages.
- *
- * Examples: lov and osc are implementations of cl interface.
- *
- * Big Theory Statement.
- *
- * Layered objects.
- *
- * Client implementation is based on the following data-types:
- *
- *   - cl_object
- *
- *   - cl_page
- *
- *   - cl_lock     represents an extent lock on an object.
- *
- *   - cl_io       represents high-level i/o activity such as whole read/write
- *		 system call, or write-out of pages from under the lock being
- *		 canceled. cl_io has sub-ios that can be stopped and resumed
- *		 independently, thus achieving high degree of transfer
- *		 parallelism. Single cl_io can be advanced forward by
- *		 the multiple threads (although in the most usual case of
- *		 read/write system call it is associated with the single user
- *		 thread, that issued the system call).
- *
- *   - cl_req      represents a collection of pages for a transfer. cl_req is
- *		 constructed by req-forming engine that tries to saturate
- *		 transport with large and continuous transfers.
- *
- * Terminology
- *
- *     - to avoid confusion high-level I/O operation like read or write system
- *     call is referred to as "an io", whereas low-level I/O operation, like
- *     RPC, is referred to as "a transfer"
- *
- *     - "generic code" means generic (not file system specific) code in the
- *     hosting environment. "cl-code" means code (mostly in cl_*.c files) that
- *     is not layer specific.
- *
- * Locking.
- *
- *  - i_mutex
- *      - PG_locked
- *	  - cl_object_header::coh_page_guard
- *	  - cl_object_header::coh_lock_guard
- *	  - lu_site::ls_guard
- *
- * See the top comment in cl_object.c for the description of overall locking and
- * reference-counting design.
- *
- * See comments below for the description of i/o, page, and dlm-locking
- * design.
- *
- * @{
- */
-
-/*
- * super-class definitions.
- */
-#include "lu_object.h"
-#include "linux/lustre_compat25.h"
-#include <linux/mutex.h>
-#include <linux/radix-tree.h>
-
-struct inode;
-
-struct cl_device;
-struct cl_device_operations;
-
-struct cl_object;
-struct cl_object_page_operations;
-struct cl_object_lock_operations;
-
-struct cl_page;
-struct cl_page_slice;
-struct cl_lock;
-struct cl_lock_slice;
-
-struct cl_lock_operations;
-struct cl_page_operations;
-
-struct cl_io;
-struct cl_io_slice;
-
-struct cl_req;
-struct cl_req_slice;
-
-/**
- * Operations for each data device in the client stack.
- *
- * \see vvp_cl_ops, lov_cl_ops, lovsub_cl_ops, osc_cl_ops
- */
-struct cl_device_operations {
-	/**
-	 * Initialize cl_req. This method is called top-to-bottom on all
-	 * devices in the stack to get them a chance to allocate layer-private
-	 * data, and to attach them to the cl_req by calling
-	 * cl_req_slice_add().
-	 *
-	 * \see osc_req_init(), lov_req_init(), lovsub_req_init()
-	 * \see ccc_req_init()
-	 */
-	int (*cdo_req_init)(const struct lu_env *env, struct cl_device *dev,
-			    struct cl_req *req);
-};
-
-/**
- * Device in the client stack.
- *
- * \see ccc_device, lov_device, lovsub_device, osc_device
- */
-struct cl_device {
-	/** Super-class. */
-	struct lu_device		   cd_lu_dev;
-	/** Per-layer operation vector. */
-	const struct cl_device_operations *cd_ops;
-};
-
-/** \addtogroup cl_object cl_object
- * @{ */
-/**
- * "Data attributes" of cl_object. Data attributes can be updated
- * independently for a sub-object, and top-object's attributes are calculated
- * from sub-objects' ones.
- */
-struct cl_attr {
-	/** Object size, in bytes */
-	loff_t cat_size;
-	/**
-	 * Known minimal size, in bytes.
-	 *
-	 * This is only valid when at least one DLM lock is held.
-	 */
-	loff_t cat_kms;
-	/** Modification time. Measured in seconds since epoch. */
-	time_t cat_mtime;
-	/** Access time. Measured in seconds since epoch. */
-	time_t cat_atime;
-	/** Change time. Measured in seconds since epoch. */
-	time_t cat_ctime;
-	/**
-	 * Blocks allocated to this cl_object on the server file system.
-	 *
-	 * \todo XXX An interface for block size is needed.
-	 */
-	__u64  cat_blocks;
-	/**
-	 * User identifier for quota purposes.
-	 */
-	uid_t  cat_uid;
-	/**
-	 * Group identifier for quota purposes.
-	 */
-	gid_t  cat_gid;
-};
-
-/**
- * Fields in cl_attr that are being set.
- */
-enum cl_attr_valid {
-	CAT_SIZE   = 1 << 0,
-	CAT_KMS    = 1 << 1,
-	CAT_MTIME  = 1 << 3,
-	CAT_ATIME  = 1 << 4,
-	CAT_CTIME  = 1 << 5,
-	CAT_BLOCKS = 1 << 6,
-	CAT_UID    = 1 << 7,
-	CAT_GID    = 1 << 8
-};
-
-/**
- * Sub-class of lu_object with methods common for objects on the client
- * stacks.
- *
- * cl_object: represents a regular file system object, both a file and a
- *    stripe. cl_object is based on lu_object: it is identified by a fid,
- *    layered, cached, hashed, and lrued. Important distinction with the server
- *    side, where md_object and dt_object are used, is that cl_object "fans out"
- *    at the lov/sns level: depending on the file layout, single file is
- *    represented as a set of "sub-objects" (stripes). At the implementation
- *    level, struct lov_object contains an array of cl_objects. Each sub-object
- *    is a full-fledged cl_object, having its fid, living in the lru and hash
- *    table.
- *
- *    This leads to the next important difference with the server side: on the
- *    client, it's quite usual to have objects with the different sequence of
- *    layers. For example, typical top-object is composed of the following
- *    layers:
- *
- *	- vvp
- *	- lov
- *
- *    whereas its sub-objects are composed of
- *
- *	- lovsub
- *	- osc
- *
- *    layers. Here "lovsub" is a mostly dummy layer, whose purpose is to keep
- *    track of the object-subobject relationship.
- *
- *    Sub-objects are not cached independently: when top-object is about to
- *    be discarded from the memory, all its sub-objects are torn-down and
- *    destroyed too.
- *
- * \see ccc_object, lov_object, lovsub_object, osc_object
- */
-struct cl_object {
-	/** super class */
-	struct lu_object		   co_lu;
-	/** per-object-layer operations */
-	const struct cl_object_operations *co_ops;
-	/** offset of page slice in cl_page buffer */
-	int				   co_slice_off;
-};
-
-/**
- * Description of the client object configuration. This is used for the
- * creation of a new client object that is identified by a more state than
- * fid.
- */
-struct cl_object_conf {
-	/** Super-class. */
-	struct lu_object_conf     coc_lu;
-	union {
-		/**
-		 * Object layout. This is consumed by lov.
-		 */
-		struct lustre_md *coc_md;
-		/**
-		 * Description of particular stripe location in the
-		 * cluster. This is consumed by osc.
-		 */
-		struct lov_oinfo *coc_oinfo;
-	} u;
-	/**
-	 * VFS inode. This is consumed by vvp.
-	 */
-	struct inode	     *coc_inode;
-	/**
-	 * Layout lock handle.
-	 */
-	struct ldlm_lock	 *coc_lock;
-	/**
-	 * Operation to handle layout, OBJECT_CONF_XYZ.
-	 */
-	int			  coc_opc;
-};
-
-enum {
-	/** configure layout, set up a new stripe, must be called while
-	 * holding layout lock. */
-	OBJECT_CONF_SET = 0,
-	/** invalidate the current stripe configuration due to losing
-	 * layout lock. */
-	OBJECT_CONF_INVALIDATE = 1,
-	/** wait for old layout to go away so that new layout can be
-	 * set up. */
-	OBJECT_CONF_WAIT = 2
-};
-
-/**
- * Operations implemented for each cl object layer.
- *
- * \see vvp_ops, lov_ops, lovsub_ops, osc_ops
- */
-struct cl_object_operations {
-	/**
-	 * Initialize page slice for this layer. Called top-to-bottom through
-	 * every object layer when a new cl_page is instantiated. Layer
-	 * keeping private per-page data, or requiring its own page operations
-	 * vector should allocate these data here, and attach then to the page
-	 * by calling cl_page_slice_add(). \a vmpage is locked (in the VM
-	 * sense). Optional.
-	 *
-	 * \retval NULL success.
-	 *
-	 * \retval ERR_PTR(errno) failure code.
-	 *
-	 * \retval valid-pointer pointer to already existing referenced page
-	 *	 to be used instead of newly created.
-	 */
-	int  (*coo_page_init)(const struct lu_env *env, struct cl_object *obj,
-				struct cl_page *page, struct page *vmpage);
-	/**
-	 * Initialize lock slice for this layer. Called top-to-bottom through
-	 * every object layer when a new cl_lock is instantiated. Layer
-	 * keeping private per-lock data, or requiring its own lock operations
-	 * vector should allocate these data here, and attach then to the lock
-	 * by calling cl_lock_slice_add(). Mandatory.
-	 */
-	int  (*coo_lock_init)(const struct lu_env *env,
-			      struct cl_object *obj, struct cl_lock *lock,
-			      const struct cl_io *io);
-	/**
-	 * Initialize io state for a given layer.
-	 *
-	 * called top-to-bottom once per io existence to initialize io
-	 * state. If layer wants to keep some state for this type of io, it
-	 * has to embed struct cl_io_slice in lu_env::le_ses, and register
-	 * slice with cl_io_slice_add(). It is guaranteed that all threads
-	 * participating in this io share the same session.
-	 */
-	int  (*coo_io_init)(const struct lu_env *env,
-			    struct cl_object *obj, struct cl_io *io);
-	/**
-	 * Fill portion of \a attr that this layer controls. This method is
-	 * called top-to-bottom through all object layers.
-	 *
-	 * \pre cl_object_header::coh_attr_guard of the top-object is locked.
-	 *
-	 * \return   0: to continue
-	 * \return +ve: to stop iterating through layers (but 0 is returned
-	 * from enclosing cl_object_attr_get())
-	 * \return -ve: to signal error
-	 */
-	int (*coo_attr_get)(const struct lu_env *env, struct cl_object *obj,
-			    struct cl_attr *attr);
-	/**
-	 * Update attributes.
-	 *
-	 * \a valid is a bitmask composed from enum #cl_attr_valid, and
-	 * indicating what attributes are to be set.
-	 *
-	 * \pre cl_object_header::coh_attr_guard of the top-object is locked.
-	 *
-	 * \return the same convention as for
-	 * cl_object_operations::coo_attr_get() is used.
-	 */
-	int (*coo_attr_set)(const struct lu_env *env, struct cl_object *obj,
-			    const struct cl_attr *attr, unsigned valid);
-	/**
-	 * Update object configuration. Called top-to-bottom to modify object
-	 * configuration.
-	 *
-	 * XXX error conditions and handling.
-	 */
-	int (*coo_conf_set)(const struct lu_env *env, struct cl_object *obj,
-			    const struct cl_object_conf *conf);
-	/**
-	 * Glimpse ast. Executed when glimpse ast arrives for a lock on this
-	 * object. Layers are supposed to fill parts of \a lvb that will be
-	 * shipped to the glimpse originator as a glimpse result.
-	 *
-	 * \see ccc_object_glimpse(), lovsub_object_glimpse(),
-	 * \see osc_object_glimpse()
-	 */
-	int (*coo_glimpse)(const struct lu_env *env,
-			   const struct cl_object *obj, struct ost_lvb *lvb);
-};
-
-/**
- * Extended header for client object.
- */
-struct cl_object_header {
-	/** Standard lu_object_header. cl_object::co_lu::lo_header points
-	 * here. */
-	struct lu_object_header  coh_lu;
-	/** \name locks
-	 * \todo XXX move locks below to the separate cache-lines, they are
-	 * mostly useless otherwise.
-	 */
-	/** @{ */
-	/** Lock protecting page tree. */
-	spinlock_t		 coh_page_guard;
-	/** Lock protecting lock list. */
-	spinlock_t		 coh_lock_guard;
-	/** @} locks */
-	/** Radix tree of cl_page's, cached for this object. */
-	struct radix_tree_root   coh_tree;
-	/** # of pages in radix tree. */
-	unsigned long	    coh_pages;
-	/** List of cl_lock's granted for this object. */
-	struct list_head	       coh_locks;
-
-	/**
-	 * Parent object. It is assumed that an object has a well-defined
-	 * parent, but not a well-defined child (there may be multiple
-	 * sub-objects, for the same top-object). cl_object_header::coh_parent
-	 * field allows certain code to be written generically, without
-	 * limiting possible cl_object layouts unduly.
-	 */
-	struct cl_object_header *coh_parent;
-	/**
-	 * Protects consistency between cl_attr of parent object and
-	 * attributes of sub-objects, that the former is calculated ("merged")
-	 * from.
-	 *
-	 * \todo XXX this can be read/write lock if needed.
-	 */
-	spinlock_t		 coh_attr_guard;
-	/**
-	 * Size of cl_page + page slices
-	 */
-	unsigned short		 coh_page_bufsize;
-	/**
-	 * Number of objects above this one: 0 for a top-object, 1 for its
-	 * sub-object, etc.
-	 */
-	unsigned char		 coh_nesting;
-};
-
-/**
- * Helper macro: iterate over all layers of the object \a obj, assigning every
- * layer top-to-bottom to \a slice.
- */
-#define cl_object_for_each(slice, obj)				      \
-	list_for_each_entry((slice),				    \
-				&(obj)->co_lu.lo_header->loh_layers,	\
-				co_lu.lo_linkage)
-/**
- * Helper macro: iterate over all layers of the object \a obj, assigning every
- * layer bottom-to-top to \a slice.
- */
-#define cl_object_for_each_reverse(slice, obj)			       \
-	list_for_each_entry_reverse((slice),			     \
-					&(obj)->co_lu.lo_header->loh_layers, \
-					co_lu.lo_linkage)
-/** @} cl_object */
-
-#ifndef pgoff_t
-#define pgoff_t unsigned long
-#endif
-
-#define CL_PAGE_EOF ((pgoff_t)~0ull)
-
-/** \addtogroup cl_page cl_page
- * @{ */
-
-/** \struct cl_page
- * Layered client page.
- *
- * cl_page: represents a portion of a file, cached in the memory. All pages
- *    of the given file are of the same size, and are kept in the radix tree
- *    hanging off the cl_object. cl_page doesn't fan out, but as sub-objects
- *    of the top-level file object are first class cl_objects, they have their
- *    own radix trees of pages and hence page is implemented as a sequence of
- *    struct cl_pages's, linked into double-linked list through
- *    cl_page::cp_parent and cl_page::cp_child pointers, each residing in the
- *    corresponding radix tree at the corresponding logical offset.
- *
- * cl_page is associated with VM page of the hosting environment (struct
- *    page in Linux kernel, for example), struct page. It is assumed, that this
- *    association is implemented by one of cl_page layers (top layer in the
- *    current design) that
- *
- *	- intercepts per-VM-page call-backs made by the environment (e.g.,
- *	  memory pressure),
- *
- *	- translates state (page flag bits) and locking between lustre and
- *	  environment.
- *
- *    The association between cl_page and struct page is immutable and
- *    established when cl_page is created.
- *
- * cl_page can be "owned" by a particular cl_io (see below), guaranteeing
- *    this io an exclusive access to this page w.r.t. other io attempts and
- *    various events changing page state (such as transfer completion, or
- *    eviction of the page from the memory). Note, that in general cl_io
- *    cannot be identified with a particular thread, and page ownership is not
- *    exactly equal to the current thread holding a lock on the page. Layer
- *    implementing association between cl_page and struct page has to implement
- *    ownership on top of available synchronization mechanisms.
- *
- *    While lustre client maintains the notion of an page ownership by io,
- *    hosting MM/VM usually has its own page concurrency control
- *    mechanisms. For example, in Linux, page access is synchronized by the
- *    per-page PG_locked bit-lock, and generic kernel code (generic_file_*())
- *    takes care to acquire and release such locks as necessary around the
- *    calls to the file system methods (->readpage(), ->prepare_write(),
- *    ->commit_write(), etc.). This leads to the situation when there are two
- *    different ways to own a page in the client:
- *
- *	- client code explicitly and voluntary owns the page (cl_page_own());
- *
- *	- VM locks a page and then calls the client, that has "to assume"
- *	  the ownership from the VM (cl_page_assume()).
- *
- *    Dual methods to release ownership are cl_page_disown() and
- *    cl_page_unassume().
- *
- * cl_page is reference counted (cl_page::cp_ref). When reference counter
- *    drops to 0, the page is returned to the cache, unless it is in
- *    cl_page_state::CPS_FREEING state, in which case it is immediately
- *    destroyed.
- *
- *    The general logic guaranteeing the absence of "existential races" for
- *    pages is the following:
- *
- *	- there are fixed known ways for a thread to obtain a new reference
- *	  to a page:
- *
- *	    - by doing a lookup in the cl_object radix tree, protected by the
- *	      spin-lock;
- *
- *	    - by starting from VM-locked struct page and following some
- *	      hosting environment method (e.g., following ->private pointer in
- *	      the case of Linux kernel), see cl_vmpage_page();
- *
- *	- when the page enters cl_page_state::CPS_FREEING state, all these
- *	  ways are severed with the proper synchronization
- *	  (cl_page_delete());
- *
- *	- entry into cl_page_state::CPS_FREEING is serialized by the VM page
- *	  lock;
- *
- *	- no new references to the page in cl_page_state::CPS_FREEING state
- *	  are allowed (checked in cl_page_get()).
- *
- *    Together this guarantees that when last reference to a
- *    cl_page_state::CPS_FREEING page is released, it is safe to destroy the
- *    page, as neither references to it can be acquired at that point, nor
- *    ones exist.
- *
- * cl_page is a state machine. States are enumerated in enum
- *    cl_page_state. Possible state transitions are enumerated in
- *    cl_page_state_set(). State transition process (i.e., actual changing of
- *    cl_page::cp_state field) is protected by the lock on the underlying VM
- *    page.
- *
- * Linux Kernel implementation.
- *
- *    Binding between cl_page and struct page (which is a typedef for
- *    struct page) is implemented in the vvp layer. cl_page is attached to the
- *    ->private pointer of the struct page, together with the setting of
- *    PG_private bit in page->flags, and acquiring additional reference on the
- *    struct page (much like struct buffer_head, or any similar file system
- *    private data structures).
- *
- *    PG_locked lock is used to implement both ownership and transfer
- *    synchronization, that is, page is VM-locked in CPS_{OWNED,PAGE{IN,OUT}}
- *    states. No additional references are acquired for the duration of the
- *    transfer.
- *
- * \warning *THIS IS NOT* the behavior expected by the Linux kernel, where
- *	  write-out is "protected" by the special PG_writeback bit.
- */
-
-/**
- * States of cl_page. cl_page.c assumes particular order here.
- *
- * The page state machine is rather crude, as it doesn't recognize finer page
- * states like "dirty" or "up to date". This is because such states are not
- * always well defined for the whole stack (see, for example, the
- * implementation of the read-ahead, that hides page up-to-dateness to track
- * cache hits accurately). Such sub-states are maintained by the layers that
- * are interested in them.
- */
-enum cl_page_state {
-	/**
-	 * Page is in the cache, un-owned. Page leaves cached state in the
-	 * following cases:
-	 *
-	 *     - [cl_page_state::CPS_OWNED] io comes across the page and
-	 *     owns it;
-	 *
-	 *     - [cl_page_state::CPS_PAGEOUT] page is dirty, the
-	 *     req-formation engine decides that it wants to include this page
-	 *     into an cl_req being constructed, and yanks it from the cache;
-	 *
-	 *     - [cl_page_state::CPS_FREEING] VM callback is executed to
-	 *     evict the page form the memory;
-	 *
-	 * \invariant cl_page::cp_owner == NULL && cl_page::cp_req == NULL
-	 */
-	CPS_CACHED,
-	/**
-	 * Page is exclusively owned by some cl_io. Page may end up in this
-	 * state as a result of
-	 *
-	 *     - io creating new page and immediately owning it;
-	 *
-	 *     - [cl_page_state::CPS_CACHED] io finding existing cached page
-	 *     and owning it;
-	 *
-	 *     - [cl_page_state::CPS_OWNED] io finding existing owned page
-	 *     and waiting for owner to release the page;
-	 *
-	 * Page leaves owned state in the following cases:
-	 *
-	 *     - [cl_page_state::CPS_CACHED] io decides to leave the page in
-	 *     the cache, doing nothing;
-	 *
-	 *     - [cl_page_state::CPS_PAGEIN] io starts read transfer for
-	 *     this page;
-	 *
-	 *     - [cl_page_state::CPS_PAGEOUT] io starts immediate write
-	 *     transfer for this page;
-	 *
-	 *     - [cl_page_state::CPS_FREEING] io decides to destroy this
-	 *     page (e.g., as part of truncate or extent lock cancellation).
-	 *
-	 * \invariant cl_page::cp_owner != NULL && cl_page::cp_req == NULL
-	 */
-	CPS_OWNED,
-	/**
-	 * Page is being written out, as a part of a transfer. This state is
-	 * entered when req-formation logic decided that it wants this page to
-	 * be sent through the wire _now_. Specifically, it means that once
-	 * this state is achieved, transfer completion handler (with either
-	 * success or failure indication) is guaranteed to be executed against
-	 * this page independently of any locks and any scheduling decisions
-	 * made by the hosting environment (that effectively means that the
-	 * page is never put into cl_page_state::CPS_PAGEOUT state "in
-	 * advance". This property is mentioned, because it is important when
-	 * reasoning about possible dead-locks in the system). The page can
-	 * enter this state as a result of
-	 *
-	 *     - [cl_page_state::CPS_OWNED] an io requesting an immediate
-	 *     write-out of this page, or
-	 *
-	 *     - [cl_page_state::CPS_CACHED] req-forming engine deciding
-	 *     that it has enough dirty pages cached to issue a "good"
-	 *     transfer.
-	 *
-	 * The page leaves cl_page_state::CPS_PAGEOUT state when the transfer
-	 * is completed---it is moved into cl_page_state::CPS_CACHED state.
-	 *
-	 * Underlying VM page is locked for the duration of transfer.
-	 *
-	 * \invariant: cl_page::cp_owner == NULL && cl_page::cp_req != NULL
-	 */
-	CPS_PAGEOUT,
-	/**
-	 * Page is being read in, as a part of a transfer. This is quite
-	 * similar to the cl_page_state::CPS_PAGEOUT state, except that
-	 * read-in is always "immediate"---there is no such thing a sudden
-	 * construction of read cl_req from cached, presumably not up to date,
-	 * pages.
-	 *
-	 * Underlying VM page is locked for the duration of transfer.
-	 *
-	 * \invariant: cl_page::cp_owner == NULL && cl_page::cp_req != NULL
-	 */
-	CPS_PAGEIN,
-	/**
-	 * Page is being destroyed. This state is entered when client decides
-	 * that page has to be deleted from its host object, as, e.g., a part
-	 * of truncate.
-	 *
-	 * Once this state is reached, there is no way to escape it.
-	 *
-	 * \invariant: cl_page::cp_owner == NULL && cl_page::cp_req == NULL
-	 */
-	CPS_FREEING,
-	CPS_NR
-};
-
-enum cl_page_type {
-	/** Host page, the page is from the host inode which the cl_page
-	 * belongs to. */
-	CPT_CACHEABLE = 1,
-
-	/** Transient page, the transient cl_page is used to bind a cl_page
-	 *  to vmpage which is not belonging to the same object of cl_page.
-	 *  it is used in DirectIO, lockless IO and liblustre. */
-	CPT_TRANSIENT,
-};
-
-/**
- * Flags maintained for every cl_page.
- */
-enum cl_page_flags {
-	/**
-	 * Set when pagein completes. Used for debugging (read completes at
-	 * most once for a page).
-	 */
-	CPF_READ_COMPLETED = 1 << 0
-};
-
-/**
- * Fields are protected by the lock on struct page, except for atomics and
- * immutables.
- *
- * \invariant Data type invariants are in cl_page_invariant(). Basically:
- * cl_page::cp_parent and cl_page::cp_child are a well-formed double-linked
- * list, consistent with the parent/child pointers in the cl_page::cp_obj and
- * cl_page::cp_owner (when set).
- */
-struct cl_page {
-	/** Reference counter. */
-	atomic_t	     cp_ref;
-	/** An object this page is a part of. Immutable after creation. */
-	struct cl_object	*cp_obj;
-	/** Logical page index within the object. Immutable after creation. */
-	pgoff_t		  cp_index;
-	/** List of slices. Immutable after creation. */
-	struct list_head	       cp_layers;
-	/** Parent page, NULL for top-level page. Immutable after creation. */
-	struct cl_page	  *cp_parent;
-	/** Lower-layer page. NULL for bottommost page. Immutable after
-	 * creation. */
-	struct cl_page	  *cp_child;
-	/**
-	 * Page state. This field is const to avoid accidental update, it is
-	 * modified only internally within cl_page.c. Protected by a VM lock.
-	 */
-	const enum cl_page_state cp_state;
-	/** Linkage of pages within group. Protected by cl_page::cp_mutex. */
-	struct list_head		cp_batch;
-	/** Mutex serializing membership of a page in a batch. */
-	struct mutex		cp_mutex;
-	/** Linkage of pages within cl_req. */
-	struct list_head	       cp_flight;
-	/** Transfer error. */
-	int		      cp_error;
-
-	/**
-	 * Page type. Only CPT_TRANSIENT is used so far. Immutable after
-	 * creation.
-	 */
-	enum cl_page_type	cp_type;
-
-	/**
-	 * Owning IO in cl_page_state::CPS_OWNED state. Sub-page can be owned
-	 * by sub-io. Protected by a VM lock.
-	 */
-	struct cl_io	    *cp_owner;
-	/**
-	 * Debug information, the task is owning the page.
-	 */
-	struct task_struct	*cp_task;
-	/**
-	 * Owning IO request in cl_page_state::CPS_PAGEOUT and
-	 * cl_page_state::CPS_PAGEIN states. This field is maintained only in
-	 * the top-level pages. Protected by a VM lock.
-	 */
-	struct cl_req	   *cp_req;
-	/** List of references to this page, for debugging. */
-	struct lu_ref	    cp_reference;
-	/** Link to an object, for debugging. */
-	struct lu_ref_link       cp_obj_ref;
-	/** Link to a queue, for debugging. */
-	struct lu_ref_link       cp_queue_ref;
-	/** Per-page flags from enum cl_page_flags. Protected by a VM lock. */
-	unsigned                 cp_flags;
-	/** Assigned if doing a sync_io */
-	struct cl_sync_io       *cp_sync_io;
-};
-
-/**
- * Per-layer part of cl_page.
- *
- * \see ccc_page, lov_page, osc_page
- */
-struct cl_page_slice {
-	struct cl_page		  *cpl_page;
-	/**
-	 * Object slice corresponding to this page slice. Immutable after
-	 * creation.
-	 */
-	struct cl_object		*cpl_obj;
-	const struct cl_page_operations *cpl_ops;
-	/** Linkage into cl_page::cp_layers. Immutable after creation. */
-	struct list_head		       cpl_linkage;
-};
-
-/**
- * Lock mode. For the client extent locks.
- *
- * \warning: cl_lock_mode_match() assumes particular ordering here.
- * \ingroup cl_lock
- */
-enum cl_lock_mode {
-	/**
-	 * Mode of a lock that protects no data, and exists only as a
-	 * placeholder. This is used for `glimpse' requests. A phantom lock
-	 * might get promoted to real lock at some point.
-	 */
-	CLM_PHANTOM,
-	CLM_READ,
-	CLM_WRITE,
-	CLM_GROUP
-};
-
-/**
- * Requested transfer type.
- * \ingroup cl_req
- */
-enum cl_req_type {
-	CRT_READ,
-	CRT_WRITE,
-	CRT_NR
-};
-
-/**
- * Per-layer page operations.
- *
- * Methods taking an \a io argument are for the activity happening in the
- * context of given \a io. Page is assumed to be owned by that io, except for
- * the obvious cases (like cl_page_operations::cpo_own()).
- *
- * \see vvp_page_ops, lov_page_ops, osc_page_ops
- */
-struct cl_page_operations {
-	/**
-	 * cl_page<->struct page methods. Only one layer in the stack has to
-	 * implement these. Current code assumes that this functionality is
-	 * provided by the topmost layer, see cl_page_disown0() as an example.
-	 */
-
-	/**
-	 * \return the underlying VM page. Optional.
-	 */
-	struct page *(*cpo_vmpage)(const struct lu_env *env,
-				  const struct cl_page_slice *slice);
-	/**
-	 * Called when \a io acquires this page into the exclusive
-	 * ownership. When this method returns, it is guaranteed that the is
-	 * not owned by other io, and no transfer is going on against
-	 * it. Optional.
-	 *
-	 * \see cl_page_own()
-	 * \see vvp_page_own(), lov_page_own()
-	 */
-	int  (*cpo_own)(const struct lu_env *env,
-			const struct cl_page_slice *slice,
-			struct cl_io *io, int nonblock);
-	/** Called when ownership it yielded. Optional.
-	 *
-	 * \see cl_page_disown()
-	 * \see vvp_page_disown()
-	 */
-	void (*cpo_disown)(const struct lu_env *env,
-			   const struct cl_page_slice *slice, struct cl_io *io);
-	/**
-	 * Called for a page that is already "owned" by \a io from VM point of
-	 * view. Optional.
-	 *
-	 * \see cl_page_assume()
-	 * \see vvp_page_assume(), lov_page_assume()
-	 */
-	void (*cpo_assume)(const struct lu_env *env,
-			   const struct cl_page_slice *slice, struct cl_io *io);
-	/** Dual to cl_page_operations::cpo_assume(). Optional. Called
-	 * bottom-to-top when IO releases a page without actually unlocking
-	 * it.
-	 *
-	 * \see cl_page_unassume()
-	 * \see vvp_page_unassume()
-	 */
-	void (*cpo_unassume)(const struct lu_env *env,
-			     const struct cl_page_slice *slice,
-			     struct cl_io *io);
-	/**
-	 * Announces whether the page contains valid data or not by \a uptodate.
-	 *
-	 * \see cl_page_export()
-	 * \see vvp_page_export()
-	 */
-	void  (*cpo_export)(const struct lu_env *env,
-			    const struct cl_page_slice *slice, int uptodate);
-	/**
-	 * Unmaps page from the user space (if it is mapped).
-	 *
-	 * \see cl_page_unmap()
-	 * \see vvp_page_unmap()
-	 */
-	int (*cpo_unmap)(const struct lu_env *env,
-			 const struct cl_page_slice *slice, struct cl_io *io);
-	/**
-	 * Checks whether underlying VM page is locked (in the suitable
-	 * sense). Used for assertions.
-	 *
-	 * \retval    -EBUSY: page is protected by a lock of a given mode;
-	 * \retval  -ENODATA: page is not protected by a lock;
-	 * \retval	 0: this layer cannot decide. (Should never happen.)
-	 */
-	int (*cpo_is_vmlocked)(const struct lu_env *env,
-			       const struct cl_page_slice *slice);
-	/**
-	 * Page destruction.
-	 */
-
-	/**
-	 * Called when page is truncated from the object. Optional.
-	 *
-	 * \see cl_page_discard()
-	 * \see vvp_page_discard(), osc_page_discard()
-	 */
-	void (*cpo_discard)(const struct lu_env *env,
-			    const struct cl_page_slice *slice,
-			    struct cl_io *io);
-	/**
-	 * Called when page is removed from the cache, and is about to being
-	 * destroyed. Optional.
-	 *
-	 * \see cl_page_delete()
-	 * \see vvp_page_delete(), osc_page_delete()
-	 */
-	void (*cpo_delete)(const struct lu_env *env,
-			   const struct cl_page_slice *slice);
-	/** Destructor. Frees resources and slice itself. */
-	void (*cpo_fini)(const struct lu_env *env,
-			 struct cl_page_slice *slice);
-
-	/**
-	 * Checks whether the page is protected by a cl_lock. This is a
-	 * per-layer method, because certain layers have ways to check for the
-	 * lock much more efficiently than through the generic locks scan, or
-	 * implement locking mechanisms separate from cl_lock, e.g.,
-	 * LL_FILE_GROUP_LOCKED in vvp. If \a pending is true, check for locks
-	 * being canceled, or scheduled for cancellation as soon as the last
-	 * user goes away, too.
-	 *
-	 * \retval    -EBUSY: page is protected by a lock of a given mode;
-	 * \retval  -ENODATA: page is not protected by a lock;
-	 * \retval	 0: this layer cannot decide.
-	 *
-	 * \see cl_page_is_under_lock()
-	 */
-	int (*cpo_is_under_lock)(const struct lu_env *env,
-				 const struct cl_page_slice *slice,
-				 struct cl_io *io);
-
-	/**
-	 * Optional debugging helper. Prints given page slice.
-	 *
-	 * \see cl_page_print()
-	 */
-	int (*cpo_print)(const struct lu_env *env,
-			 const struct cl_page_slice *slice,
-			 void *cookie, lu_printer_t p);
-	/**
-	 * \name transfer
-	 *
-	 * Transfer methods. See comment on cl_req for a description of
-	 * transfer formation and life-cycle.
-	 *
-	 * @{
-	 */
-	/**
-	 * Request type dependent vector of operations.
-	 *
-	 * Transfer operations depend on transfer mode (cl_req_type). To avoid
-	 * passing transfer mode to each and every of these methods, and to
-	 * avoid branching on request type inside of the methods, separate
-	 * methods for cl_req_type:CRT_READ and cl_req_type:CRT_WRITE are
-	 * provided. That is, method invocation usually looks like
-	 *
-	 *	 slice->cp_ops.io[req->crq_type].cpo_method(env, slice, ...);
-	 */
-	struct {
-		/**
-		 * Called when a page is submitted for a transfer as a part of
-		 * cl_page_list.
-		 *
-		 * \return    0	 : page is eligible for submission;
-		 * \return    -EALREADY : skip this page;
-		 * \return    -ve       : error.
-		 *
-		 * \see cl_page_prep()
-		 */
-		int  (*cpo_prep)(const struct lu_env *env,
-				 const struct cl_page_slice *slice,
-				 struct cl_io *io);
-		/**
-		 * Completion handler. This is guaranteed to be eventually
-		 * fired after cl_page_operations::cpo_prep() or
-		 * cl_page_operations::cpo_make_ready() call.
-		 *
-		 * This method can be called in a non-blocking context. It is
-		 * guaranteed however, that the page involved and its object
-		 * are pinned in memory (and, hence, calling cl_page_put() is
-		 * safe).
-		 *
-		 * \see cl_page_completion()
-		 */
-		void (*cpo_completion)(const struct lu_env *env,
-				       const struct cl_page_slice *slice,
-				       int ioret);
-		/**
-		 * Called when cached page is about to be added to the
-		 * cl_req as a part of req formation.
-		 *
-		 * \return    0       : proceed with this page;
-		 * \return    -EAGAIN : skip this page;
-		 * \return    -ve     : error.
-		 *
-		 * \see cl_page_make_ready()
-		 */
-		int  (*cpo_make_ready)(const struct lu_env *env,
-				       const struct cl_page_slice *slice);
-		/**
-		 * Announce that this page is to be written out
-		 * opportunistically, that is, page is dirty, it is not
-		 * necessary to start write-out transfer right now, but
-		 * eventually page has to be written out.
-		 *
-		 * Main caller of this is the write path (see
-		 * vvp_io_commit_write()), using this method to build a
-		 * "transfer cache" from which large transfers are then
-		 * constructed by the req-formation engine.
-		 *
-		 * \todo XXX it would make sense to add page-age tracking
-		 * semantics here, and to oblige the req-formation engine to
-		 * send the page out not later than it is too old.
-		 *
-		 * \see cl_page_cache_add()
-		 */
-		int  (*cpo_cache_add)(const struct lu_env *env,
-				      const struct cl_page_slice *slice,
-				      struct cl_io *io);
-	} io[CRT_NR];
-	/**
-	 * Tell transfer engine that only [to, from] part of a page should be
-	 * transmitted.
-	 *
-	 * This is used for immediate transfers.
-	 *
-	 * \todo XXX this is not very good interface. It would be much better
-	 * if all transfer parameters were supplied as arguments to
-	 * cl_io_operations::cio_submit() call, but it is not clear how to do
-	 * this for page queues.
-	 *
-	 * \see cl_page_clip()
-	 */
-	void (*cpo_clip)(const struct lu_env *env,
-			 const struct cl_page_slice *slice,
-			 int from, int to);
-	/**
-	 * \pre  the page was queued for transferring.
-	 * \post page is removed from client's pending list, or -EBUSY
-	 *       is returned if it has already been in transferring.
-	 *
-	 * This is one of seldom page operation which is:
-	 * 0. called from top level;
-	 * 1. don't have vmpage locked;
-	 * 2. every layer should synchronize execution of its ->cpo_cancel()
-	 *    with completion handlers. Osc uses client obd lock for this
-	 *    purpose. Based on there is no vvp_page_cancel and
-	 *    lov_page_cancel(), cpo_cancel is defacto protected by client lock.
-	 *
-	 * \see osc_page_cancel().
-	 */
-	int (*cpo_cancel)(const struct lu_env *env,
-			  const struct cl_page_slice *slice);
-	/**
-	 * Write out a page by kernel. This is only called by ll_writepage
-	 * right now.
-	 *
-	 * \see cl_page_flush()
-	 */
-	int (*cpo_flush)(const struct lu_env *env,
-			 const struct cl_page_slice *slice,
-			 struct cl_io *io);
-	/** @} transfer */
-};
-
-/**
- * Helper macro, dumping detailed information about \a page into a log.
- */
-#define CL_PAGE_DEBUG(mask, env, page, format, ...)		     \
-do {								    \
-	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL);		\
-									\
-	if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) {		   \
-		cl_page_print(env, &msgdata, lu_cdebug_printer, page);  \
-		CDEBUG(mask, format , ## __VA_ARGS__);		  \
-	}							       \
-} while (0)
-
-/**
- * Helper macro, dumping shorter information about \a page into a log.
- */
-#define CL_PAGE_HEADER(mask, env, page, format, ...)			  \
-do {									  \
-	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL);		      \
-									      \
-	if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) {			 \
-		cl_page_header_print(env, &msgdata, lu_cdebug_printer, page); \
-		CDEBUG(mask, format , ## __VA_ARGS__);			\
-	}								     \
-} while (0)
-
-static inline int __page_in_use(const struct cl_page *page, int refc)
-{
-	if (page->cp_type == CPT_CACHEABLE)
-		++refc;
-	LASSERT(atomic_read(&page->cp_ref) > 0);
-	return (atomic_read(&page->cp_ref) > refc);
-}
-#define cl_page_in_use(pg)       __page_in_use(pg, 1)
-#define cl_page_in_use_noref(pg) __page_in_use(pg, 0)
-
-/** @} cl_page */
-
-/** \addtogroup cl_lock cl_lock
- * @{ */
-/** \struct cl_lock
- *
- * Extent locking on the client.
- *
- * LAYERING
- *
- * The locking model of the new client code is built around
- *
- *	struct cl_lock
- *
- * data-type representing an extent lock on a regular file. cl_lock is a
- * layered object (much like cl_object and cl_page), it consists of a header
- * (struct cl_lock) and a list of layers (struct cl_lock_slice), linked to
- * cl_lock::cll_layers list through cl_lock_slice::cls_linkage.
- *
- * All locks for a given object are linked into cl_object_header::coh_locks
- * list (protected by cl_object_header::coh_lock_guard spin-lock) through
- * cl_lock::cll_linkage. Currently this list is not sorted in any way. We can
- * sort it in starting lock offset, or use altogether different data structure
- * like a tree.
- *
- * Typical cl_lock consists of the two layers:
- *
- *     - vvp_lock (vvp specific data), and
- *     - lov_lock (lov specific data).
- *
- * lov_lock contains an array of sub-locks. Each of these sub-locks is a
- * normal cl_lock: it has a header (struct cl_lock) and a list of layers:
- *
- *     - lovsub_lock, and
- *     - osc_lock
- *
- * Each sub-lock is associated with a cl_object (representing stripe
- * sub-object or the file to which top-level cl_lock is associated to), and is
- * linked into that cl_object::coh_locks. In this respect cl_lock is similar to
- * cl_object (that at lov layer also fans out into multiple sub-objects), and
- * is different from cl_page, that doesn't fan out (there is usually exactly
- * one osc_page for every vvp_page). We shall call vvp-lov portion of the lock
- * a "top-lock" and its lovsub-osc portion a "sub-lock".
- *
- * LIFE CYCLE
- *
- * cl_lock is reference counted. When reference counter drops to 0, lock is
- * placed in the cache, except when lock is in CLS_FREEING state. CLS_FREEING
- * lock is destroyed when last reference is released. Referencing between
- * top-lock and its sub-locks is described in the lov documentation module.
- *
- * STATE MACHINE
- *
- * Also, cl_lock is a state machine. This requires some clarification. One of
- * the goals of client IO re-write was to make IO path non-blocking, or at
- * least to make it easier to make it non-blocking in the future. Here
- * `non-blocking' means that when a system call (read, write, truncate)
- * reaches a situation where it has to wait for a communication with the
- * server, it should --instead of waiting-- remember its current state and
- * switch to some other work.  E.g,. instead of waiting for a lock enqueue,
- * client should proceed doing IO on the next stripe, etc. Obviously this is
- * rather radical redesign, and it is not planned to be fully implemented at
- * this time, instead we are putting some infrastructure in place, that would
- * make it easier to do asynchronous non-blocking IO easier in the
- * future. Specifically, where old locking code goes to sleep (waiting for
- * enqueue, for example), new code returns cl_lock_transition::CLO_WAIT. When
- * enqueue reply comes, its completion handler signals that lock state-machine
- * is ready to transit to the next state. There is some generic code in
- * cl_lock.c that sleeps, waiting for these signals. As a result, for users of
- * this cl_lock.c code, it looks like locking is done in normal blocking
- * fashion, and it the same time it is possible to switch to the non-blocking
- * locking (simply by returning cl_lock_transition::CLO_WAIT from cl_lock.c
- * functions).
- *
- * For a description of state machine states and transitions see enum
- * cl_lock_state.
- *
- * There are two ways to restrict a set of states which lock might move to:
- *
- *     - placing a "hold" on a lock guarantees that lock will not be moved
- *       into cl_lock_state::CLS_FREEING state until hold is released. Hold
- *       can be only acquired on a lock that is not in
- *       cl_lock_state::CLS_FREEING. All holds on a lock are counted in
- *       cl_lock::cll_holds. Hold protects lock from cancellation and
- *       destruction. Requests to cancel and destroy a lock on hold will be
- *       recorded, but only honored when last hold on a lock is released;
- *
- *     - placing a "user" on a lock guarantees that lock will not leave
- *       cl_lock_state::CLS_NEW, cl_lock_state::CLS_QUEUING,
- *       cl_lock_state::CLS_ENQUEUED and cl_lock_state::CLS_HELD set of
- *       states, once it enters this set. That is, if a user is added onto a
- *       lock in a state not from this set, it doesn't immediately enforce
- *       lock to move to this set, but once lock enters this set it will
- *       remain there until all users are removed. Lock users are counted in
- *       cl_lock::cll_users.
- *
- *       User is used to assure that lock is not canceled or destroyed while
- *       it is being enqueued, or actively used by some IO.
- *
- *       Currently, a user always comes with a hold (cl_lock_invariant()
- *       checks that a number of holds is not less than a number of users).
- *
- * CONCURRENCY
- *
- * This is how lock state-machine operates. struct cl_lock contains a mutex
- * cl_lock::cll_guard that protects struct fields.
- *
- *     - mutex is taken, and cl_lock::cll_state is examined.
- *
- *     - for every state there are possible target states where lock can move
- *       into. They are tried in order. Attempts to move into next state are
- *       done by _try() functions in cl_lock.c:cl_{enqueue,unlock,wait}_try().
- *
- *     - if the transition can be performed immediately, state is changed,
- *       and mutex is released.
- *
- *     - if the transition requires blocking, _try() function returns
- *       cl_lock_transition::CLO_WAIT. Caller unlocks mutex and goes to
- *       sleep, waiting for possibility of lock state change. It is woken
- *       up when some event occurs, that makes lock state change possible
- *       (e.g., the reception of the reply from the server), and repeats
- *       the loop.
- *
- * Top-lock and sub-lock has separate mutexes and the latter has to be taken
- * first to avoid dead-lock.
- *
- * To see an example of interaction of all these issues, take a look at the
- * lov_cl.c:lov_lock_enqueue() function. It is called as a part of
- * cl_enqueue_try(), and tries to advance top-lock to ENQUEUED state, by
- * advancing state-machines of its sub-locks (lov_lock_enqueue_one()). Note
- * also, that it uses trylock to grab sub-lock mutex to avoid dead-lock. It
- * also has to handle CEF_ASYNC enqueue, when sub-locks enqueues have to be
- * done in parallel, rather than one after another (this is used for glimpse
- * locks, that cannot dead-lock).
- *
- * INTERFACE AND USAGE
- *
- * struct cl_lock_operations provide a number of call-backs that are invoked
- * when events of interest occurs. Layers can intercept and handle glimpse,
- * blocking, cancel ASTs and a reception of the reply from the server.
- *
- * One important difference with the old client locking model is that new
- * client has a representation for the top-lock, whereas in the old code only
- * sub-locks existed as real data structures and file-level locks are
- * represented by "request sets" that are created and destroyed on each and
- * every lock creation.
- *
- * Top-locks are cached, and can be found in the cache by the system calls. It
- * is possible that top-lock is in cache, but some of its sub-locks were
- * canceled and destroyed. In that case top-lock has to be enqueued again
- * before it can be used.
- *
- * Overall process of the locking during IO operation is as following:
- *
- *     - once parameters for IO are setup in cl_io, cl_io_operations::cio_lock()
- *       is called on each layer. Responsibility of this method is to add locks,
- *       needed by a given layer into cl_io.ci_lockset.
- *
- *     - once locks for all layers were collected, they are sorted to avoid
- *       dead-locks (cl_io_locks_sort()), and enqueued.
- *
- *     - when all locks are acquired, IO is performed;
- *
- *     - locks are released into cache.
- *
- * Striping introduces major additional complexity into locking. The
- * fundamental problem is that it is generally unsafe to actively use (hold)
- * two locks on the different OST servers at the same time, as this introduces
- * inter-server dependency and can lead to cascading evictions.
- *
- * Basic solution is to sub-divide large read/write IOs into smaller pieces so
- * that no multi-stripe locks are taken (note that this design abandons POSIX
- * read/write semantics). Such pieces ideally can be executed concurrently. At
- * the same time, certain types of IO cannot be sub-divived, without
- * sacrificing correctness. This includes:
- *
- *  - O_APPEND write, where [0, EOF] lock has to be taken, to guarantee
- *  atomicity;
- *
- *  - ftruncate(fd, offset), where [offset, EOF] lock has to be taken.
- *
- * Also, in the case of read(fd, buf, count) or write(fd, buf, count), where
- * buf is a part of memory mapped Lustre file, a lock or locks protecting buf
- * has to be held together with the usual lock on [offset, offset + count].
- *
- * As multi-stripe locks have to be allowed, it makes sense to cache them, so
- * that, for example, a sequence of O_APPEND writes can proceed quickly
- * without going down to the individual stripes to do lock matching. On the
- * other hand, multi-stripe locks shouldn't be used by normal read/write
- * calls. To achieve this, every layer can implement ->clo_fits_into() method,
- * that is called by lock matching code (cl_lock_lookup()), and that can be
- * used to selectively disable matching of certain locks for certain IOs. For
- * example, lov layer implements lov_lock_fits_into() that allow multi-stripe
- * locks to be matched only for truncates and O_APPEND writes.
- *
- * Interaction with DLM
- *
- * In the expected setup, cl_lock is ultimately backed up by a collection of
- * DLM locks (struct ldlm_lock). Association between cl_lock and DLM lock is
- * implemented in osc layer, that also matches DLM events (ASTs, cancellation,
- * etc.) into cl_lock_operation calls. See struct osc_lock for a more detailed
- * description of interaction with DLM.
- */
-
-/**
- * Lock description.
- */
-struct cl_lock_descr {
-	/** Object this lock is granted for. */
-	struct cl_object *cld_obj;
-	/** Index of the first page protected by this lock. */
-	pgoff_t	   cld_start;
-	/** Index of the last page (inclusive) protected by this lock. */
-	pgoff_t	   cld_end;
-	/** Group ID, for group lock */
-	__u64	     cld_gid;
-	/** Lock mode. */
-	enum cl_lock_mode cld_mode;
-	/**
-	 * flags to enqueue lock. A combination of bit-flags from
-	 * enum cl_enq_flags.
-	 */
-	__u32	     cld_enq_flags;
-};
-
-#define DDESCR "%s(%d):[%lu, %lu]"
-#define PDESCR(descr)						   \
-	cl_lock_mode_name((descr)->cld_mode), (descr)->cld_mode,	\
-	(descr)->cld_start, (descr)->cld_end
-
-const char *cl_lock_mode_name(const enum cl_lock_mode mode);
-
-/**
- * Lock state-machine states.
- *
- * \htmlonly
- * <pre>
- *
- * Possible state transitions:
- *
- *	      +------------------>NEW
- *	      |		    |
- *	      |		    | cl_enqueue_try()
- *	      |		    |
- *	      |    cl_unuse_try()  V
- *	      |  +--------------QUEUING (*)
- *	      |  |		 |
- *	      |  |		 | cl_enqueue_try()
- *	      |  |		 |
- *	      |  | cl_unuse_try()  V
- *    sub-lock  |  +-------------ENQUEUED (*)
- *    canceled  |  |		 |
- *	      |  |		 | cl_wait_try()
- *	      |  |		 |
- *	      |  |		(R)
- *	      |  |		 |
- *	      |  |		 V
- *	      |  |		HELD<---------+
- *	      |  |		 |	    |
- *	      |  |		 |	    | cl_use_try()
- *	      |  |  cl_unuse_try() |	    |
- *	      |  |		 |	    |
- *	      |  |		 V	 ---+
- *	      |  +------------>INTRANSIT (D) <--+
- *	      |		    |	    |
- *	      |     cl_unuse_try() |	    | cached lock found
- *	      |		    |	    | cl_use_try()
- *	      |		    |	    |
- *	      |		    V	    |
- *	      +------------------CACHED---------+
- *				   |
- *				  (C)
- *				   |
- *				   V
- *				FREEING
- *
- * Legend:
- *
- *	 In states marked with (*) transition to the same state (i.e., a loop
- *	 in the diagram) is possible.
- *
- *	 (R) is the point where Receive call-back is invoked: it allows layers
- *	 to handle arrival of lock reply.
- *
- *	 (C) is the point where Cancellation call-back is invoked.
- *
- *	 (D) is the transit state which means the lock is changing.
- *
- *	 Transition to FREEING state is possible from any other state in the
- *	 diagram in case of unrecoverable error.
- * </pre>
- * \endhtmlonly
- *
- * These states are for individual cl_lock object. Top-lock and its sub-locks
- * can be in the different states. Another way to say this is that we have
- * nested state-machines.
- *
- * Separate QUEUING and ENQUEUED states are needed to support non-blocking
- * operation for locks with multiple sub-locks. Imagine lock on a file F, that
- * intersects 3 stripes S0, S1, and S2. To enqueue F client has to send
- * enqueue to S0, wait for its completion, then send enqueue for S1, wait for
- * its completion and at last enqueue lock for S2, and wait for its
- * completion. In that case, top-lock is in QUEUING state while S0, S1 are
- * handled, and is in ENQUEUED state after enqueue to S2 has been sent (note
- * that in this case, sub-locks move from state to state, and top-lock remains
- * in the same state).
- */
-enum cl_lock_state {
-	/**
-	 * Lock that wasn't yet enqueued
-	 */
-	CLS_NEW,
-	/**
-	 * Enqueue is in progress, blocking for some intermediate interaction
-	 * with the other side.
-	 */
-	CLS_QUEUING,
-	/**
-	 * Lock is fully enqueued, waiting for server to reply when it is
-	 * granted.
-	 */
-	CLS_ENQUEUED,
-	/**
-	 * Lock granted, actively used by some IO.
-	 */
-	CLS_HELD,
-	/**
-	 * This state is used to mark the lock is being used, or unused.
-	 * We need this state because the lock may have several sublocks,
-	 * so it's impossible to have an atomic way to bring all sublocks
-	 * into CLS_HELD state at use case, or all sublocks to CLS_CACHED
-	 * at unuse case.
-	 * If a thread is referring to a lock, and it sees the lock is in this
-	 * state, it must wait for the lock.
-	 * See state diagram for details.
-	 */
-	CLS_INTRANSIT,
-	/**
-	 * Lock granted, not used.
-	 */
-	CLS_CACHED,
-	/**
-	 * Lock is being destroyed.
-	 */
-	CLS_FREEING,
-	CLS_NR
-};
-
-enum cl_lock_flags {
-	/**
-	 * lock has been cancelled. This flag is never cleared once set (by
-	 * cl_lock_cancel0()).
-	 */
-	CLF_CANCELLED  = 1 << 0,
-	/** cancellation is pending for this lock. */
-	CLF_CANCELPEND = 1 << 1,
-	/** destruction is pending for this lock. */
-	CLF_DOOMED     = 1 << 2,
-	/** from enqueue RPC reply upcall. */
-	CLF_FROM_UPCALL= 1 << 3,
-};
-
-/**
- * Lock closure.
- *
- * Lock closure is a collection of locks (both top-locks and sub-locks) that
- * might be updated in a result of an operation on a certain lock (which lock
- * this is a closure of).
- *
- * Closures are needed to guarantee dead-lock freedom in the presence of
- *
- *     - nested state-machines (top-lock state-machine composed of sub-lock
- *       state-machines), and
- *
- *     - shared sub-locks.
- *
- * Specifically, many operations, such as lock enqueue, wait, unlock,
- * etc. start from a top-lock, and then operate on a sub-locks of this
- * top-lock, holding a top-lock mutex. When sub-lock state changes as a result
- * of such operation, this change has to be propagated to all top-locks that
- * share this sub-lock. Obviously, no natural lock ordering (e.g.,
- * top-to-bottom or bottom-to-top) captures this scenario, so try-locking has
- * to be used. Lock closure systematizes this try-and-repeat logic.
- */
-struct cl_lock_closure {
-	/**
-	 * Lock that is mutexed when closure construction is started. When
-	 * closure in is `wait' mode (cl_lock_closure::clc_wait), mutex on
-	 * origin is released before waiting.
-	 */
-	struct cl_lock   *clc_origin;
-	/**
-	 * List of enclosed locks, so far. Locks are linked here through
-	 * cl_lock::cll_inclosure.
-	 */
-	struct list_head	clc_list;
-	/**
-	 * True iff closure is in a `wait' mode. This determines what
-	 * cl_lock_enclosure() does when a lock L to be added to the closure
-	 * is currently mutexed by some other thread.
-	 *
-	 * If cl_lock_closure::clc_wait is not set, then closure construction
-	 * fails with CLO_REPEAT immediately.
-	 *
-	 * In wait mode, cl_lock_enclosure() waits until next attempt to build
-	 * a closure might succeed. To this end it releases an origin mutex
-	 * (cl_lock_closure::clc_origin), that has to be the only lock mutex
-	 * owned by the current thread, and then waits on L mutex (by grabbing
-	 * it and immediately releasing), before returning CLO_REPEAT to the
-	 * caller.
-	 */
-	int	       clc_wait;
-	/** Number of locks in the closure. */
-	int	       clc_nr;
-};
-
-/**
- * Layered client lock.
- */
-struct cl_lock {
-	/** Reference counter. */
-	atomic_t	  cll_ref;
-	/** List of slices. Immutable after creation. */
-	struct list_head	    cll_layers;
-	/**
-	 * Linkage into cl_lock::cll_descr::cld_obj::coh_locks list. Protected
-	 * by cl_lock::cll_descr::cld_obj::coh_lock_guard.
-	 */
-	struct list_head	    cll_linkage;
-	/**
-	 * Parameters of this lock. Protected by
-	 * cl_lock::cll_descr::cld_obj::coh_lock_guard nested within
-	 * cl_lock::cll_guard. Modified only on lock creation and in
-	 * cl_lock_modify().
-	 */
-	struct cl_lock_descr  cll_descr;
-	/** Protected by cl_lock::cll_guard. */
-	enum cl_lock_state    cll_state;
-	/** signals state changes. */
-	wait_queue_head_t	   cll_wq;
-	/**
-	 * Recursive lock, most fields in cl_lock{} are protected by this.
-	 *
-	 * Locking rules: this mutex is never held across network
-	 * communication, except when lock is being canceled.
-	 *
-	 * Lock ordering: a mutex of a sub-lock is taken first, then a mutex
-	 * on a top-lock. Other direction is implemented through a
-	 * try-lock-repeat loop. Mutices of unrelated locks can be taken only
-	 * by try-locking.
-	 *
-	 * \see osc_lock_enqueue_wait(), lov_lock_cancel(), lov_sublock_wait().
-	 */
-	struct mutex		cll_guard;
-	struct task_struct	*cll_guarder;
-	int		   cll_depth;
-
-	/**
-	 * the owner for INTRANSIT state
-	 */
-	struct task_struct	*cll_intransit_owner;
-	int		   cll_error;
-	/**
-	 * Number of holds on a lock. A hold prevents a lock from being
-	 * canceled and destroyed. Protected by cl_lock::cll_guard.
-	 *
-	 * \see cl_lock_hold(), cl_lock_unhold(), cl_lock_release()
-	 */
-	int		   cll_holds;
-	 /**
-	  * Number of lock users. Valid in cl_lock_state::CLS_HELD state
-	  * only. Lock user pins lock in CLS_HELD state. Protected by
-	  * cl_lock::cll_guard.
-	  *
-	  * \see cl_wait(), cl_unuse().
-	  */
-	int		   cll_users;
-	/**
-	 * Flag bit-mask. Values from enum cl_lock_flags. Updates are
-	 * protected by cl_lock::cll_guard.
-	 */
-	unsigned long	 cll_flags;
-	/**
-	 * A linkage into a list of locks in a closure.
-	 *
-	 * \see cl_lock_closure
-	 */
-	struct list_head	    cll_inclosure;
-	/**
-	 * Confict lock at queuing time.
-	 */
-	struct cl_lock       *cll_conflict;
-	/**
-	 * A list of references to this lock, for debugging.
-	 */
-	struct lu_ref	 cll_reference;
-	/**
-	 * A list of holds on this lock, for debugging.
-	 */
-	struct lu_ref	 cll_holders;
-	/**
-	 * A reference for cl_lock::cll_descr::cld_obj. For debugging.
-	 */
-	struct lu_ref_link    cll_obj_ref;
-#ifdef CONFIG_LOCKDEP
-	/* "dep_map" name is assumed by lockdep.h macros. */
-	struct lockdep_map    dep_map;
-#endif
-};
-
-/**
- * Per-layer part of cl_lock
- *
- * \see ccc_lock, lov_lock, lovsub_lock, osc_lock
- */
-struct cl_lock_slice {
-	struct cl_lock		  *cls_lock;
-	/** Object slice corresponding to this lock slice. Immutable after
-	 * creation. */
-	struct cl_object		*cls_obj;
-	const struct cl_lock_operations *cls_ops;
-	/** Linkage into cl_lock::cll_layers. Immutable after creation. */
-	struct list_head		       cls_linkage;
-};
-
-/**
- * Possible (non-error) return values of ->clo_{enqueue,wait,unlock}().
- *
- * NOTE: lov_subresult() depends on ordering here.
- */
-enum cl_lock_transition {
-	/** operation cannot be completed immediately. Wait for state change. */
-	CLO_WAIT	= 1,
-	/** operation had to release lock mutex, restart. */
-	CLO_REPEAT      = 2,
-	/** lower layer re-enqueued. */
-	CLO_REENQUEUED  = 3,
-};
-
-/**
- *
- * \see vvp_lock_ops, lov_lock_ops, lovsub_lock_ops, osc_lock_ops
- */
-struct cl_lock_operations {
-	/**
-	 * \name statemachine
-	 *
-	 * State machine transitions. These 3 methods are called to transfer
-	 * lock from one state to another, as described in the commentary
-	 * above enum #cl_lock_state.
-	 *
-	 * \retval 0	  this layer has nothing more to do to before
-	 *		       transition to the target state happens;
-	 *
-	 * \retval CLO_REPEAT method had to release and re-acquire cl_lock
-	 *		    mutex, repeat invocation of transition method
-	 *		    across all layers;
-	 *
-	 * \retval CLO_WAIT   this layer cannot move to the target state
-	 *		    immediately, as it has to wait for certain event
-	 *		    (e.g., the communication with the server). It
-	 *		    is guaranteed, that when the state transfer
-	 *		    becomes possible, cl_lock::cll_wq wait-queue
-	 *		    is signaled. Caller can wait for this event by
-	 *		    calling cl_lock_state_wait();
-	 *
-	 * \retval -ve	failure, abort state transition, move the lock
-	 *		    into cl_lock_state::CLS_FREEING state, and set
-	 *		    cl_lock::cll_error.
-	 *
-	 * Once all layers voted to agree to transition (by returning 0), lock
-	 * is moved into corresponding target state. All state transition
-	 * methods are optional.
-	 */
-	/** @{ */
-	/**
-	 * Attempts to enqueue the lock. Called top-to-bottom.
-	 *
-	 * \see ccc_lock_enqueue(), lov_lock_enqueue(), lovsub_lock_enqueue(),
-	 * \see osc_lock_enqueue()
-	 */
-	int  (*clo_enqueue)(const struct lu_env *env,
-			    const struct cl_lock_slice *slice,
-			    struct cl_io *io, __u32 enqflags);
-	/**
-	 * Attempts to wait for enqueue result. Called top-to-bottom.
-	 *
-	 * \see ccc_lock_wait(), lov_lock_wait(), osc_lock_wait()
-	 */
-	int  (*clo_wait)(const struct lu_env *env,
-			 const struct cl_lock_slice *slice);
-	/**
-	 * Attempts to unlock the lock. Called bottom-to-top. In addition to
-	 * usual return values of lock state-machine methods, this can return
-	 * -ESTALE to indicate that lock cannot be returned to the cache, and
-	 * has to be re-initialized.
-	 * unuse is a one-shot operation, so it must NOT return CLO_WAIT.
-	 *
-	 * \see ccc_lock_unuse(), lov_lock_unuse(), osc_lock_unuse()
-	 */
-	int  (*clo_unuse)(const struct lu_env *env,
-			  const struct cl_lock_slice *slice);
-	/**
-	 * Notifies layer that cached lock is started being used.
-	 *
-	 * \pre lock->cll_state == CLS_CACHED
-	 *
-	 * \see lov_lock_use(), osc_lock_use()
-	 */
-	int  (*clo_use)(const struct lu_env *env,
-			const struct cl_lock_slice *slice);
-	/** @} statemachine */
-	/**
-	 * A method invoked when lock state is changed (as a result of state
-	 * transition). This is used, for example, to track when the state of
-	 * a sub-lock changes, to propagate this change to the corresponding
-	 * top-lock. Optional
-	 *
-	 * \see lovsub_lock_state()
-	 */
-	void (*clo_state)(const struct lu_env *env,
-			  const struct cl_lock_slice *slice,
-			  enum cl_lock_state st);
-	/**
-	 * Returns true, iff given lock is suitable for the given io, idea
-	 * being, that there are certain "unsafe" locks, e.g., ones acquired
-	 * for O_APPEND writes, that we don't want to re-use for a normal
-	 * write, to avoid the danger of cascading evictions. Optional. Runs
-	 * under cl_object_header::coh_lock_guard.
-	 *
-	 * XXX this should take more information about lock needed by
-	 * io. Probably lock description or something similar.
-	 *
-	 * \see lov_fits_into()
-	 */
-	int (*clo_fits_into)(const struct lu_env *env,
-			     const struct cl_lock_slice *slice,
-			     const struct cl_lock_descr *need,
-			     const struct cl_io *io);
-	/**
-	 * \name ast
-	 * Asynchronous System Traps. All of then are optional, all are
-	 * executed bottom-to-top.
-	 */
-	/** @{ */
-
-	/**
-	 * Cancellation callback. Cancel a lock voluntarily, or under
-	 * the request of server.
-	 */
-	void (*clo_cancel)(const struct lu_env *env,
-			   const struct cl_lock_slice *slice);
-	/**
-	 * Lock weighting ast. Executed to estimate how precious this lock
-	 * is. The sum of results across all layers is used to determine
-	 * whether lock worth keeping in cache given present memory usage.
-	 *
-	 * \see osc_lock_weigh(), vvp_lock_weigh(), lovsub_lock_weigh().
-	 */
-	unsigned long (*clo_weigh)(const struct lu_env *env,
-				   const struct cl_lock_slice *slice);
-	/** @} ast */
-
-	/**
-	 * \see lovsub_lock_closure()
-	 */
-	int (*clo_closure)(const struct lu_env *env,
-			   const struct cl_lock_slice *slice,
-			   struct cl_lock_closure *closure);
-	/**
-	 * Executed bottom-to-top when lock description changes (e.g., as a
-	 * result of server granting more generous lock than was requested).
-	 *
-	 * \see lovsub_lock_modify()
-	 */
-	int (*clo_modify)(const struct lu_env *env,
-			  const struct cl_lock_slice *slice,
-			  const struct cl_lock_descr *updated);
-	/**
-	 * Notifies layers (bottom-to-top) that lock is going to be
-	 * destroyed. Responsibility of layers is to prevent new references on
-	 * this lock from being acquired once this method returns.
-	 *
-	 * This can be called multiple times due to the races.
-	 *
-	 * \see cl_lock_delete()
-	 * \see osc_lock_delete(), lovsub_lock_delete()
-	 */
-	void (*clo_delete)(const struct lu_env *env,
-			   const struct cl_lock_slice *slice);
-	/**
-	 * Destructor. Frees resources and the slice.
-	 *
-	 * \see ccc_lock_fini(), lov_lock_fini(), lovsub_lock_fini(),
-	 * \see osc_lock_fini()
-	 */
-	void (*clo_fini)(const struct lu_env *env, struct cl_lock_slice *slice);
-	/**
-	 * Optional debugging helper. Prints given lock slice.
-	 */
-	int (*clo_print)(const struct lu_env *env,
-			 void *cookie, lu_printer_t p,
-			 const struct cl_lock_slice *slice);
-};
-
-#define CL_LOCK_DEBUG(mask, env, lock, format, ...)		     \
-do {								    \
-	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL);		\
-									\
-	if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) {		   \
-		cl_lock_print(env, &msgdata, lu_cdebug_printer, lock);  \
-		CDEBUG(mask, format , ## __VA_ARGS__);		  \
-	}							       \
-} while (0)
-
-#define CL_LOCK_ASSERT(expr, env, lock) do {			    \
-	if (likely(expr))					       \
-		break;						  \
-									\
-	CL_LOCK_DEBUG(D_ERROR, env, lock, "failed at %s.\n", #expr);    \
-	LBUG();							 \
-} while (0)
-
-/** @} cl_lock */
-
-/** \addtogroup cl_page_list cl_page_list
- * Page list used to perform collective operations on a group of pages.
- *
- * Pages are added to the list one by one. cl_page_list acquires a reference
- * for every page in it. Page list is used to perform collective operations on
- * pages:
- *
- *     - submit pages for an immediate transfer,
- *
- *     - own pages on behalf of certain io (waiting for each page in turn),
- *
- *     - discard pages.
- *
- * When list is finalized, it releases references on all pages it still has.
- *
- * \todo XXX concurrency control.
- *
- * @{
- */
-struct cl_page_list {
-	unsigned	     pl_nr;
-	struct list_head	   pl_pages;
-	struct task_struct	*pl_owner;
-};
-
-/**
- * A 2-queue of pages. A convenience data-type for common use case, 2-queue
- * contains an incoming page list and an outgoing page list.
- */
-struct cl_2queue {
-	struct cl_page_list c2_qin;
-	struct cl_page_list c2_qout;
-};
-
-/** @} cl_page_list */
-
-/** \addtogroup cl_io cl_io
- * @{ */
-/** \struct cl_io
- * I/O
- *
- * cl_io represents a high level I/O activity like
- * read(2)/write(2)/truncate(2) system call, or cancellation of an extent
- * lock.
- *
- * cl_io is a layered object, much like cl_{object,page,lock} but with one
- * important distinction. We want to minimize number of calls to the allocator
- * in the fast path, e.g., in the case of read(2) when everything is cached:
- * client already owns the lock over region being read, and data are cached
- * due to read-ahead. To avoid allocation of cl_io layers in such situations,
- * per-layer io state is stored in the session, associated with the io, see
- * struct {vvp,lov,osc}_io for example. Sessions allocation is amortized
- * by using free-lists, see cl_env_get().
- *
- * There is a small predefined number of possible io types, enumerated in enum
- * cl_io_type.
- *
- * cl_io is a state machine, that can be advanced concurrently by the multiple
- * threads. It is up to these threads to control the concurrency and,
- * specifically, to detect when io is done, and its state can be safely
- * released.
- *
- * For read/write io overall execution plan is as following:
- *
- *     (0) initialize io state through all layers;
- *
- *     (1) loop: prepare chunk of work to do
- *
- *     (2) call all layers to collect locks they need to process current chunk
- *
- *     (3) sort all locks to avoid dead-locks, and acquire them
- *
- *     (4) process the chunk: call per-page methods
- *	 (cl_io_operations::cio_read_page() for read,
- *	 cl_io_operations::cio_prepare_write(),
- *	 cl_io_operations::cio_commit_write() for write)
- *
- *     (5) release locks
- *
- *     (6) repeat loop.
- *
- * To implement the "parallel IO mode", lov layer creates sub-io's (lazily to
- * address allocation efficiency issues mentioned above), and returns with the
- * special error condition from per-page method when current sub-io has to
- * block. This causes io loop to be repeated, and lov switches to the next
- * sub-io in its cl_io_operations::cio_iter_init() implementation.
- */
-
-/** IO types */
-enum cl_io_type {
-	/** read system call */
-	CIT_READ,
-	/** write system call */
-	CIT_WRITE,
-	/** truncate, utime system calls */
-	CIT_SETATTR,
-	/**
-	 * page fault handling
-	 */
-	CIT_FAULT,
-	/**
-	 * fsync system call handling
-	 * To write out a range of file
-	 */
-	CIT_FSYNC,
-	/**
-	 * Miscellaneous io. This is used for occasional io activity that
-	 * doesn't fit into other types. Currently this is used for:
-	 *
-	 *     - cancellation of an extent lock. This io exists as a context
-	 *     to write dirty pages from under the lock being canceled back
-	 *     to the server;
-	 *
-	 *     - VM induced page write-out. An io context for writing page out
-	 *     for memory cleansing;
-	 *
-	 *     - glimpse. An io context to acquire glimpse lock.
-	 *
-	 *     - grouplock. An io context to acquire group lock.
-	 *
-	 * CIT_MISC io is used simply as a context in which locks and pages
-	 * are manipulated. Such io has no internal "process", that is,
-	 * cl_io_loop() is never called for it.
-	 */
-	CIT_MISC,
-	CIT_OP_NR
-};
-
-/**
- * States of cl_io state machine
- */
-enum cl_io_state {
-	/** Not initialized. */
-	CIS_ZERO,
-	/** Initialized. */
-	CIS_INIT,
-	/** IO iteration started. */
-	CIS_IT_STARTED,
-	/** Locks taken. */
-	CIS_LOCKED,
-	/** Actual IO is in progress. */
-	CIS_IO_GOING,
-	/** IO for the current iteration finished. */
-	CIS_IO_FINISHED,
-	/** Locks released. */
-	CIS_UNLOCKED,
-	/** Iteration completed. */
-	CIS_IT_ENDED,
-	/** cl_io finalized. */
-	CIS_FINI
-};
-
-/**
- * IO state private for a layer.
- *
- * This is usually embedded into layer session data, rather than allocated
- * dynamically.
- *
- * \see vvp_io, lov_io, osc_io, ccc_io
- */
-struct cl_io_slice {
-	struct cl_io		  *cis_io;
-	/** corresponding object slice. Immutable after creation. */
-	struct cl_object	      *cis_obj;
-	/** io operations. Immutable after creation. */
-	const struct cl_io_operations *cis_iop;
-	/**
-	 * linkage into a list of all slices for a given cl_io, hanging off
-	 * cl_io::ci_layers. Immutable after creation.
-	 */
-	struct list_head		     cis_linkage;
-};
-
-
-/**
- * Per-layer io operations.
- * \see vvp_io_ops, lov_io_ops, lovsub_io_ops, osc_io_ops
- */
-struct cl_io_operations {
-	/**
-	 * Vector of io state transition methods for every io type.
-	 *
-	 * \see cl_page_operations::io
-	 */
-	struct {
-		/**
-		 * Prepare io iteration at a given layer.
-		 *
-		 * Called top-to-bottom at the beginning of each iteration of
-		 * "io loop" (if it makes sense for this type of io). Here
-		 * layer selects what work it will do during this iteration.
-		 *
-		 * \see cl_io_operations::cio_iter_fini()
-		 */
-		int (*cio_iter_init) (const struct lu_env *env,
-				      const struct cl_io_slice *slice);
-		/**
-		 * Finalize io iteration.
-		 *
-		 * Called bottom-to-top at the end of each iteration of "io
-		 * loop". Here layers can decide whether IO has to be
-		 * continued.
-		 *
-		 * \see cl_io_operations::cio_iter_init()
-		 */
-		void (*cio_iter_fini) (const struct lu_env *env,
-				       const struct cl_io_slice *slice);
-		/**
-		 * Collect locks for the current iteration of io.
-		 *
-		 * Called top-to-bottom to collect all locks necessary for
-		 * this iteration. This methods shouldn't actually enqueue
-		 * anything, instead it should post a lock through
-		 * cl_io_lock_add(). Once all locks are collected, they are
-		 * sorted and enqueued in the proper order.
-		 */
-		int  (*cio_lock) (const struct lu_env *env,
-				  const struct cl_io_slice *slice);
-		/**
-		 * Finalize unlocking.
-		 *
-		 * Called bottom-to-top to finish layer specific unlocking
-		 * functionality, after generic code released all locks
-		 * acquired by cl_io_operations::cio_lock().
-		 */
-		void  (*cio_unlock)(const struct lu_env *env,
-				    const struct cl_io_slice *slice);
-		/**
-		 * Start io iteration.
-		 *
-		 * Once all locks are acquired, called top-to-bottom to
-		 * commence actual IO. In the current implementation,
-		 * top-level vvp_io_{read,write}_start() does all the work
-		 * synchronously by calling generic_file_*(), so other layers
-		 * are called when everything is done.
-		 */
-		int  (*cio_start)(const struct lu_env *env,
-				  const struct cl_io_slice *slice);
-		/**
-		 * Called top-to-bottom at the end of io loop. Here layer
-		 * might wait for an unfinished asynchronous io.
-		 */
-		void (*cio_end)  (const struct lu_env *env,
-				  const struct cl_io_slice *slice);
-		/**
-		 * Called bottom-to-top to notify layers that read/write IO
-		 * iteration finished, with \a nob bytes transferred.
-		 */
-		void (*cio_advance)(const struct lu_env *env,
-				    const struct cl_io_slice *slice,
-				    size_t nob);
-		/**
-		 * Called once per io, bottom-to-top to release io resources.
-		 */
-		void (*cio_fini) (const struct lu_env *env,
-				  const struct cl_io_slice *slice);
-	} op[CIT_OP_NR];
-	struct {
-		/**
-		 * Submit pages from \a queue->c2_qin for IO, and move
-		 * successfully submitted pages into \a queue->c2_qout. Return
-		 * non-zero if failed to submit even the single page. If
-		 * submission failed after some pages were moved into \a
-		 * queue->c2_qout, completion callback with non-zero ioret is
-		 * executed on them.
-		 */
-		int  (*cio_submit)(const struct lu_env *env,
-				   const struct cl_io_slice *slice,
-				   enum cl_req_type crt,
-				   struct cl_2queue *queue);
-	} req_op[CRT_NR];
-	/**
-	 * Read missing page.
-	 *
-	 * Called by a top-level cl_io_operations::op[CIT_READ]::cio_start()
-	 * method, when it hits not-up-to-date page in the range. Optional.
-	 *
-	 * \pre io->ci_type == CIT_READ
-	 */
-	int (*cio_read_page)(const struct lu_env *env,
-			     const struct cl_io_slice *slice,
-			     const struct cl_page_slice *page);
-	/**
-	 * Prepare write of a \a page. Called bottom-to-top by a top-level
-	 * cl_io_operations::op[CIT_WRITE]::cio_start() to prepare page for
-	 * get data from user-level buffer.
-	 *
-	 * \pre io->ci_type == CIT_WRITE
-	 *
-	 * \see vvp_io_prepare_write(), lov_io_prepare_write(),
-	 * osc_io_prepare_write().
-	 */
-	int (*cio_prepare_write)(const struct lu_env *env,
-				 const struct cl_io_slice *slice,
-				 const struct cl_page_slice *page,
-				 unsigned from, unsigned to);
-	/**
-	 *
-	 * \pre io->ci_type == CIT_WRITE
-	 *
-	 * \see vvp_io_commit_write(), lov_io_commit_write(),
-	 * osc_io_commit_write().
-	 */
-	int (*cio_commit_write)(const struct lu_env *env,
-				const struct cl_io_slice *slice,
-				const struct cl_page_slice *page,
-				unsigned from, unsigned to);
-	/**
-	 * Optional debugging helper. Print given io slice.
-	 */
-	int (*cio_print)(const struct lu_env *env, void *cookie,
-			 lu_printer_t p, const struct cl_io_slice *slice);
-};
-
-/**
- * Flags to lock enqueue procedure.
- * \ingroup cl_lock
- */
-enum cl_enq_flags {
-	/**
-	 * instruct server to not block, if conflicting lock is found. Instead
-	 * -EWOULDBLOCK is returned immediately.
-	 */
-	CEF_NONBLOCK     = 0x00000001,
-	/**
-	 * take lock asynchronously (out of order), as it cannot
-	 * deadlock. This is for LDLM_FL_HAS_INTENT locks used for glimpsing.
-	 */
-	CEF_ASYNC	= 0x00000002,
-	/**
-	 * tell the server to instruct (though a flag in the blocking ast) an
-	 * owner of the conflicting lock, that it can drop dirty pages
-	 * protected by this lock, without sending them to the server.
-	 */
-	CEF_DISCARD_DATA = 0x00000004,
-	/**
-	 * tell the sub layers that it must be a `real' lock. This is used for
-	 * mmapped-buffer locks and glimpse locks that must be never converted
-	 * into lockless mode.
-	 *
-	 * \see vvp_mmap_locks(), cl_glimpse_lock().
-	 */
-	CEF_MUST	 = 0x00000008,
-	/**
-	 * tell the sub layers that never request a `real' lock. This flag is
-	 * not used currently.
-	 *
-	 * cl_io::ci_lockreq and CEF_{MUST,NEVER} flags specify lockless
-	 * conversion policy: ci_lockreq describes generic information of lock
-	 * requirement for this IO, especially for locks which belong to the
-	 * object doing IO; however, lock itself may have precise requirements
-	 * that are described by the enqueue flags.
-	 */
-	CEF_NEVER	= 0x00000010,
-	/**
-	 * for async glimpse lock.
-	 */
-	CEF_AGL	  = 0x00000020,
-	/**
-	 * mask of enq_flags.
-	 */
-	CEF_MASK	 = 0x0000003f,
-};
-
-/**
- * Link between lock and io. Intermediate structure is needed, because the
- * same lock can be part of multiple io's simultaneously.
- */
-struct cl_io_lock_link {
-	/** linkage into one of cl_lockset lists. */
-	struct list_head	   cill_linkage;
-	struct cl_lock_descr cill_descr;
-	struct cl_lock      *cill_lock;
-	/** optional destructor */
-	void	       (*cill_fini)(const struct lu_env *env,
-					struct cl_io_lock_link *link);
-};
-
-/**
- * Lock-set represents a collection of locks, that io needs at a
- * time. Generally speaking, client tries to avoid holding multiple locks when
- * possible, because
- *
- *      - holding extent locks over multiple ost's introduces the danger of
- *	"cascading timeouts";
- *
- *      - holding multiple locks over the same ost is still dead-lock prone,
- *	see comment in osc_lock_enqueue(),
- *
- * but there are certain situations where this is unavoidable:
- *
- *      - O_APPEND writes have to take [0, EOF] lock for correctness;
- *
- *      - truncate has to take [new-size, EOF] lock for correctness;
- *
- *      - SNS has to take locks across full stripe for correctness;
- *
- *      - in the case when user level buffer, supplied to {read,write}(file0),
- *	is a part of a memory mapped lustre file, client has to take a dlm
- *	locks on file0, and all files that back up the buffer (or a part of
- *	the buffer, that is being processed in the current chunk, in any
- *	case, there are situations where at least 2 locks are necessary).
- *
- * In such cases we at least try to take locks in the same consistent
- * order. To this end, all locks are first collected, then sorted, and then
- * enqueued.
- */
-struct cl_lockset {
-	/** locks to be acquired. */
-	struct list_head  cls_todo;
-	/** locks currently being processed. */
-	struct list_head  cls_curr;
-	/** locks acquired. */
-	struct list_head  cls_done;
-};
-
-/**
- * Lock requirements(demand) for IO. It should be cl_io_lock_req,
- * but 'req' is always to be thought as 'request' :-)
- */
-enum cl_io_lock_dmd {
-	/** Always lock data (e.g., O_APPEND). */
-	CILR_MANDATORY = 0,
-	/** Layers are free to decide between local and global locking. */
-	CILR_MAYBE,
-	/** Never lock: there is no cache (e.g., liblustre). */
-	CILR_NEVER
-};
-
-enum cl_fsync_mode {
-	/** start writeback, do not wait for them to finish */
-	CL_FSYNC_NONE  = 0,
-	/** start writeback and wait for them to finish */
-	CL_FSYNC_LOCAL = 1,
-	/** discard all of dirty pages in a specific file range */
-	CL_FSYNC_DISCARD = 2,
-	/** start writeback and make sure they have reached storage before
-	 * return. OST_SYNC RPC must be issued and finished */
-	CL_FSYNC_ALL   = 3
-};
-
-struct cl_io_rw_common {
-	loff_t      crw_pos;
-	size_t      crw_count;
-	int	 crw_nonblock;
-};
-
-
-/**
- * State for io.
- *
- * cl_io is shared by all threads participating in this IO (in current
- * implementation only one thread advances IO, but parallel IO design and
- * concurrent copy_*_user() require multiple threads acting on the same IO. It
- * is up to these threads to serialize their activities, including updates to
- * mutable cl_io fields.
- */
-struct cl_io {
-	/** type of this IO. Immutable after creation. */
-	enum cl_io_type		ci_type;
-	/** current state of cl_io state machine. */
-	enum cl_io_state	       ci_state;
-	/** main object this io is against. Immutable after creation. */
-	struct cl_object	      *ci_obj;
-	/**
-	 * Upper layer io, of which this io is a part of. Immutable after
-	 * creation.
-	 */
-	struct cl_io		  *ci_parent;
-	/** List of slices. Immutable after creation. */
-	struct list_head		     ci_layers;
-	/** list of locks (to be) acquired by this io. */
-	struct cl_lockset	      ci_lockset;
-	/** lock requirements, this is just a help info for sublayers. */
-	enum cl_io_lock_dmd	    ci_lockreq;
-	union {
-		struct cl_rd_io {
-			struct cl_io_rw_common rd;
-		} ci_rd;
-		struct cl_wr_io {
-			struct cl_io_rw_common wr;
-			int		    wr_append;
-			int		    wr_sync;
-		} ci_wr;
-		struct cl_io_rw_common ci_rw;
-		struct cl_setattr_io {
-			struct ost_lvb   sa_attr;
-			unsigned int     sa_valid;
-			struct obd_capa *sa_capa;
-		} ci_setattr;
-		struct cl_fault_io {
-			/** page index within file. */
-			pgoff_t	 ft_index;
-			/** bytes valid byte on a faulted page. */
-			int	     ft_nob;
-			/** writable page? for nopage() only */
-			int	     ft_writable;
-			/** page of an executable? */
-			int	     ft_executable;
-			/** page_mkwrite() */
-			int	     ft_mkwrite;
-			/** resulting page */
-			struct cl_page *ft_page;
-		} ci_fault;
-		struct cl_fsync_io {
-			loff_t	     fi_start;
-			loff_t	     fi_end;
-			struct obd_capa   *fi_capa;
-			/** file system level fid */
-			struct lu_fid     *fi_fid;
-			enum cl_fsync_mode fi_mode;
-			/* how many pages were written/discarded */
-			unsigned int       fi_nr_written;
-		} ci_fsync;
-	} u;
-	struct cl_2queue     ci_queue;
-	size_t	       ci_nob;
-	int		  ci_result;
-	unsigned int	 ci_continue:1,
-	/**
-	 * This io has held grouplock, to inform sublayers that
-	 * don't do lockless i/o.
-	 */
-			     ci_no_srvlock:1,
-	/**
-	 * The whole IO need to be restarted because layout has been changed
-	 */
-			     ci_need_restart:1,
-	/**
-	 * to not refresh layout - the IO issuer knows that the layout won't
-	 * change(page operations, layout change causes all page to be
-	 * discarded), or it doesn't matter if it changes(sync).
-	 */
-			     ci_ignore_layout:1,
-	/**
-	 * Check if layout changed after the IO finishes. Mainly for HSM
-	 * requirement. If IO occurs to openning files, it doesn't need to
-	 * verify layout because HSM won't release openning files.
-	 * Right now, only two operations need to verify layout: glimpse
-	 * and setattr.
-	 */
-			     ci_verify_layout:1,
-	/**
-	 * file is released, restore has to to be triggered by vvp layer
-	 */
-			     ci_restore_needed:1,
-	/**
-	 * O_NOATIME
-	 */
-			     ci_noatime:1;
-	/**
-	 * Number of pages owned by this IO. For invariant checking.
-	 */
-	unsigned	     ci_owned_nr;
-};
-
-/** @} cl_io */
-
-/** \addtogroup cl_req cl_req
- * @{ */
-/** \struct cl_req
- * Transfer.
- *
- * There are two possible modes of transfer initiation on the client:
- *
- *     - immediate transfer: this is started when a high level io wants a page
- *       or a collection of pages to be transferred right away. Examples:
- *       read-ahead, synchronous read in the case of non-page aligned write,
- *       page write-out as a part of extent lock cancellation, page write-out
- *       as a part of memory cleansing. Immediate transfer can be both
- *       cl_req_type::CRT_READ and cl_req_type::CRT_WRITE;
- *
- *     - opportunistic transfer (cl_req_type::CRT_WRITE only), that happens
- *       when io wants to transfer a page to the server some time later, when
- *       it can be done efficiently. Example: pages dirtied by the write(2)
- *       path.
- *
- * In any case, transfer takes place in the form of a cl_req, which is a
- * representation for a network RPC.
- *
- * Pages queued for an opportunistic transfer are cached until it is decided
- * that efficient RPC can be composed of them. This decision is made by "a
- * req-formation engine", currently implemented as a part of osc
- * layer. Req-formation depends on many factors: the size of the resulting
- * RPC, whether or not multi-object RPCs are supported by the server,
- * max-rpc-in-flight limitations, size of the dirty cache, etc.
- *
- * For the immediate transfer io submits a cl_page_list, that req-formation
- * engine slices into cl_req's, possibly adding cached pages to some of
- * the resulting req's.
- *
- * Whenever a page from cl_page_list is added to a newly constructed req, its
- * cl_page_operations::cpo_prep() layer methods are called. At that moment,
- * page state is atomically changed from cl_page_state::CPS_OWNED to
- * cl_page_state::CPS_PAGEOUT or cl_page_state::CPS_PAGEIN, cl_page::cp_owner
- * is zeroed, and cl_page::cp_req is set to the
- * req. cl_page_operations::cpo_prep() method at the particular layer might
- * return -EALREADY to indicate that it does not need to submit this page
- * at all. This is possible, for example, if page, submitted for read,
- * became up-to-date in the meantime; and for write, the page don't have
- * dirty bit marked. \see cl_io_submit_rw()
- *
- * Whenever a cached page is added to a newly constructed req, its
- * cl_page_operations::cpo_make_ready() layer methods are called. At that
- * moment, page state is atomically changed from cl_page_state::CPS_CACHED to
- * cl_page_state::CPS_PAGEOUT, and cl_page::cp_req is set to
- * req. cl_page_operations::cpo_make_ready() method at the particular layer
- * might return -EAGAIN to indicate that this page is not eligible for the
- * transfer right now.
- *
- * FUTURE
- *
- * Plan is to divide transfers into "priority bands" (indicated when
- * submitting cl_page_list, and queuing a page for the opportunistic transfer)
- * and allow glueing of cached pages to immediate transfers only within single
- * band. This would make high priority transfers (like lock cancellation or
- * memory pressure induced write-out) really high priority.
- *
- */
-
-/**
- * Per-transfer attributes.
- */
-struct cl_req_attr {
-	/** Generic attributes for the server consumption. */
-	struct obdo	*cra_oa;
-	/** Capability. */
-	struct obd_capa	*cra_capa;
-	/** Jobid */
-	char		 cra_jobid[JOBSTATS_JOBID_SIZE];
-};
-
-/**
- * Transfer request operations definable at every layer.
- *
- * Concurrency: transfer formation engine synchronizes calls to all transfer
- * methods.
- */
-struct cl_req_operations {
-	/**
-	 * Invoked top-to-bottom by cl_req_prep() when transfer formation is
-	 * complete (all pages are added).
-	 *
-	 * \see osc_req_prep()
-	 */
-	int  (*cro_prep)(const struct lu_env *env,
-			 const struct cl_req_slice *slice);
-	/**
-	 * Called top-to-bottom to fill in \a oa fields. This is called twice
-	 * with different flags, see bug 10150 and osc_build_req().
-	 *
-	 * \param obj an object from cl_req which attributes are to be set in
-	 *	    \a oa.
-	 *
-	 * \param oa struct obdo where attributes are placed
-	 *
-	 * \param flags \a oa fields to be filled.
-	 */
-	void (*cro_attr_set)(const struct lu_env *env,
-			     const struct cl_req_slice *slice,
-			     const struct cl_object *obj,
-			     struct cl_req_attr *attr, u64 flags);
-	/**
-	 * Called top-to-bottom from cl_req_completion() to notify layers that
-	 * transfer completed. Has to free all state allocated by
-	 * cl_device_operations::cdo_req_init().
-	 */
-	void (*cro_completion)(const struct lu_env *env,
-			       const struct cl_req_slice *slice, int ioret);
-};
-
-/**
- * A per-object state that (potentially multi-object) transfer request keeps.
- */
-struct cl_req_obj {
-	/** object itself */
-	struct cl_object   *ro_obj;
-	/** reference to cl_req_obj::ro_obj. For debugging. */
-	struct lu_ref_link  ro_obj_ref;
-	/* something else? Number of pages for a given object? */
-};
-
-/**
- * Transfer request.
- *
- * Transfer requests are not reference counted, because IO sub-system owns
- * them exclusively and knows when to free them.
- *
- * Life cycle.
- *
- * cl_req is created by cl_req_alloc() that calls
- * cl_device_operations::cdo_req_init() device methods to allocate per-req
- * state in every layer.
- *
- * Then pages are added (cl_req_page_add()), req keeps track of all objects it
- * contains pages for.
- *
- * Once all pages were collected, cl_page_operations::cpo_prep() method is
- * called top-to-bottom. At that point layers can modify req, let it pass, or
- * deny it completely. This is to support things like SNS that have transfer
- * ordering requirements invisible to the individual req-formation engine.
- *
- * On transfer completion (or transfer timeout, or failure to initiate the
- * transfer of an allocated req), cl_req_operations::cro_completion() method
- * is called, after execution of cl_page_operations::cpo_completion() of all
- * req's pages.
- */
-struct cl_req {
-	enum cl_req_type      crq_type;
-	/** A list of pages being transferred */
-	struct list_head	    crq_pages;
-	/** Number of pages in cl_req::crq_pages */
-	unsigned	      crq_nrpages;
-	/** An array of objects which pages are in ->crq_pages */
-	struct cl_req_obj    *crq_o;
-	/** Number of elements in cl_req::crq_objs[] */
-	unsigned	      crq_nrobjs;
-	struct list_head	    crq_layers;
-};
-
-/**
- * Per-layer state for request.
- */
-struct cl_req_slice {
-	struct cl_req    *crs_req;
-	struct cl_device *crs_dev;
-	struct list_head	crs_linkage;
-	const struct cl_req_operations *crs_ops;
-};
-
-/* @} cl_req */
-
-enum cache_stats_item {
-	/** how many cache lookups were performed */
-	CS_lookup = 0,
-	/** how many times cache lookup resulted in a hit */
-	CS_hit,
-	/** how many entities are in the cache right now */
-	CS_total,
-	/** how many entities in the cache are actively used (and cannot be
-	 * evicted) right now */
-	CS_busy,
-	/** how many entities were created at all */
-	CS_create,
-	CS_NR
-};
-
-#define CS_NAMES { "lookup", "hit", "total", "busy", "create" }
-
-/**
- * Stats for a generic cache (similar to inode, lu_object, etc. caches).
- */
-struct cache_stats {
-	const char    *cs_name;
-	atomic_t   cs_stats[CS_NR];
-};
-
-/** These are not exported so far */
-void cache_stats_init (struct cache_stats *cs, const char *name);
-
-/**
- * Client-side site. This represents particular client stack. "Global"
- * variables should (directly or indirectly) be added here to allow multiple
- * clients to co-exist in the single address space.
- */
-struct cl_site {
-	struct lu_site	cs_lu;
-	/**
-	 * Statistical counters. Atomics do not scale, something better like
-	 * per-cpu counters is needed.
-	 *
-	 * These are exported as /proc/fs/lustre/llite/.../site
-	 *
-	 * When interpreting keep in mind that both sub-locks (and sub-pages)
-	 * and top-locks (and top-pages) are accounted here.
-	 */
-	struct cache_stats    cs_pages;
-	struct cache_stats    cs_locks;
-	atomic_t	  cs_pages_state[CPS_NR];
-	atomic_t	  cs_locks_state[CLS_NR];
-};
-
-int  cl_site_init (struct cl_site *s, struct cl_device *top);
-void cl_site_fini (struct cl_site *s);
-void cl_stack_fini(const struct lu_env *env, struct cl_device *cl);
-
-/**
- * Output client site statistical counters into a buffer. Suitable for
- * ll_rd_*()-style functions.
- */
-int cl_site_stats_print(const struct cl_site *site, struct seq_file *m);
-
-/**
- * \name helpers
- *
- * Type conversion and accessory functions.
- */
-/** @{ */
-
-static inline struct cl_site *lu2cl_site(const struct lu_site *site)
-{
-	return container_of(site, struct cl_site, cs_lu);
-}
-
-static inline int lu_device_is_cl(const struct lu_device *d)
-{
-	return d->ld_type->ldt_tags & LU_DEVICE_CL;
-}
-
-static inline struct cl_device *lu2cl_dev(const struct lu_device *d)
-{
-	LASSERT(d == NULL || IS_ERR(d) || lu_device_is_cl(d));
-	return container_of0(d, struct cl_device, cd_lu_dev);
-}
-
-static inline struct lu_device *cl2lu_dev(struct cl_device *d)
-{
-	return &d->cd_lu_dev;
-}
-
-static inline struct cl_object *lu2cl(const struct lu_object *o)
-{
-	LASSERT(o == NULL || IS_ERR(o) || lu_device_is_cl(o->lo_dev));
-	return container_of0(o, struct cl_object, co_lu);
-}
-
-static inline const struct cl_object_conf *
-lu2cl_conf(const struct lu_object_conf *conf)
-{
-	return container_of0(conf, struct cl_object_conf, coc_lu);
-}
-
-static inline struct cl_object *cl_object_next(const struct cl_object *obj)
-{
-	return obj ? lu2cl(lu_object_next(&obj->co_lu)) : NULL;
-}
-
-static inline struct cl_device *cl_object_device(const struct cl_object *o)
-{
-	LASSERT(o == NULL || IS_ERR(o) || lu_device_is_cl(o->co_lu.lo_dev));
-	return container_of0(o->co_lu.lo_dev, struct cl_device, cd_lu_dev);
-}
-
-static inline struct cl_object_header *luh2coh(const struct lu_object_header *h)
-{
-	return container_of0(h, struct cl_object_header, coh_lu);
-}
-
-static inline struct cl_site *cl_object_site(const struct cl_object *obj)
-{
-	return lu2cl_site(obj->co_lu.lo_dev->ld_site);
-}
-
-static inline
-struct cl_object_header *cl_object_header(const struct cl_object *obj)
-{
-	return luh2coh(obj->co_lu.lo_header);
-}
-
-static inline int cl_device_init(struct cl_device *d, struct lu_device_type *t)
-{
-	return lu_device_init(&d->cd_lu_dev, t);
-}
-
-static inline void cl_device_fini(struct cl_device *d)
-{
-	lu_device_fini(&d->cd_lu_dev);
-}
-
-void cl_page_slice_add(struct cl_page *page, struct cl_page_slice *slice,
-		       struct cl_object *obj,
-		       const struct cl_page_operations *ops);
-void cl_lock_slice_add(struct cl_lock *lock, struct cl_lock_slice *slice,
-		       struct cl_object *obj,
-		       const struct cl_lock_operations *ops);
-void cl_io_slice_add(struct cl_io *io, struct cl_io_slice *slice,
-		     struct cl_object *obj, const struct cl_io_operations *ops);
-void cl_req_slice_add(struct cl_req *req, struct cl_req_slice *slice,
-		      struct cl_device *dev,
-		      const struct cl_req_operations *ops);
-/** @} helpers */
-
-/** \defgroup cl_object cl_object
- * @{ */
-struct cl_object *cl_object_top (struct cl_object *o);
-struct cl_object *cl_object_find(const struct lu_env *env, struct cl_device *cd,
-				 const struct lu_fid *fid,
-				 const struct cl_object_conf *c);
-
-int  cl_object_header_init(struct cl_object_header *h);
-void cl_object_header_fini(struct cl_object_header *h);
-void cl_object_put	(const struct lu_env *env, struct cl_object *o);
-void cl_object_get	(struct cl_object *o);
-void cl_object_attr_lock  (struct cl_object *o);
-void cl_object_attr_unlock(struct cl_object *o);
-int  cl_object_attr_get   (const struct lu_env *env, struct cl_object *obj,
-			   struct cl_attr *attr);
-int  cl_object_attr_set   (const struct lu_env *env, struct cl_object *obj,
-			   const struct cl_attr *attr, unsigned valid);
-int  cl_object_glimpse    (const struct lu_env *env, struct cl_object *obj,
-			   struct ost_lvb *lvb);
-int  cl_conf_set	  (const struct lu_env *env, struct cl_object *obj,
-			   const struct cl_object_conf *conf);
-void cl_object_prune      (const struct lu_env *env, struct cl_object *obj);
-void cl_object_kill       (const struct lu_env *env, struct cl_object *obj);
-int  cl_object_has_locks  (struct cl_object *obj);
-
-/**
- * Returns true, iff \a o0 and \a o1 are slices of the same object.
- */
-static inline int cl_object_same(struct cl_object *o0, struct cl_object *o1)
-{
-	return cl_object_header(o0) == cl_object_header(o1);
-}
-
-static inline void cl_object_page_init(struct cl_object *clob, int size)
-{
-	clob->co_slice_off = cl_object_header(clob)->coh_page_bufsize;
-	cl_object_header(clob)->coh_page_bufsize += ALIGN(size, 8);
-}
-
-static inline void *cl_object_page_slice(struct cl_object *clob,
-					 struct cl_page *page)
-{
-	return (void *)((char *)page + clob->co_slice_off);
-}
-
-/** @} cl_object */
-
-/** \defgroup cl_page cl_page
- * @{ */
-enum {
-	CLP_GANG_OKAY = 0,
-	CLP_GANG_RESCHED,
-	CLP_GANG_AGAIN,
-	CLP_GANG_ABORT
-};
-
-/* callback of cl_page_gang_lookup() */
-typedef int   (*cl_page_gang_cb_t)  (const struct lu_env *, struct cl_io *,
-				     struct cl_page *, void *);
-int	     cl_page_gang_lookup (const struct lu_env *env,
-				     struct cl_object *obj,
-				     struct cl_io *io,
-				     pgoff_t start, pgoff_t end,
-				     cl_page_gang_cb_t cb, void *cbdata);
-struct cl_page *cl_page_lookup      (struct cl_object_header *hdr,
-				     pgoff_t index);
-struct cl_page *cl_page_find	(const struct lu_env *env,
-				     struct cl_object *obj,
-				     pgoff_t idx, struct page *vmpage,
-				     enum cl_page_type type);
-struct cl_page *cl_page_find_sub    (const struct lu_env *env,
-				     struct cl_object *obj,
-				     pgoff_t idx, struct page *vmpage,
-				     struct cl_page *parent);
-void	    cl_page_get	 (struct cl_page *page);
-void	    cl_page_put	 (const struct lu_env *env,
-				     struct cl_page *page);
-void	    cl_page_print       (const struct lu_env *env, void *cookie,
-				     lu_printer_t printer,
-				     const struct cl_page *pg);
-void	    cl_page_header_print(const struct lu_env *env, void *cookie,
-				     lu_printer_t printer,
-				     const struct cl_page *pg);
-struct page     *cl_page_vmpage      (const struct lu_env *env,
-				     struct cl_page *page);
-struct cl_page *cl_vmpage_page      (struct page *vmpage, struct cl_object *obj);
-struct cl_page *cl_page_top	 (struct cl_page *page);
-
-const struct cl_page_slice *cl_page_at(const struct cl_page *page,
-				       const struct lu_device_type *dtype);
-
-/**
- * \name ownership
- *
- * Functions dealing with the ownership of page by io.
- */
-/** @{ */
-
-int  cl_page_own	(const struct lu_env *env,
-			 struct cl_io *io, struct cl_page *page);
-int  cl_page_own_try    (const struct lu_env *env,
-			 struct cl_io *io, struct cl_page *page);
-void cl_page_assume     (const struct lu_env *env,
-			 struct cl_io *io, struct cl_page *page);
-void cl_page_unassume   (const struct lu_env *env,
-			 struct cl_io *io, struct cl_page *pg);
-void cl_page_disown     (const struct lu_env *env,
-			 struct cl_io *io, struct cl_page *page);
-int  cl_page_is_owned   (const struct cl_page *pg, const struct cl_io *io);
-
-/** @} ownership */
-
-/**
- * \name transfer
- *
- * Functions dealing with the preparation of a page for a transfer, and
- * tracking transfer state.
- */
-/** @{ */
-int  cl_page_prep       (const struct lu_env *env, struct cl_io *io,
-			 struct cl_page *pg, enum cl_req_type crt);
-void cl_page_completion (const struct lu_env *env,
-			 struct cl_page *pg, enum cl_req_type crt, int ioret);
-int  cl_page_make_ready (const struct lu_env *env, struct cl_page *pg,
-			 enum cl_req_type crt);
-int  cl_page_cache_add  (const struct lu_env *env, struct cl_io *io,
-			 struct cl_page *pg, enum cl_req_type crt);
-void cl_page_clip       (const struct lu_env *env, struct cl_page *pg,
-			 int from, int to);
-int  cl_page_cancel     (const struct lu_env *env, struct cl_page *page);
-int  cl_page_flush      (const struct lu_env *env, struct cl_io *io,
-			 struct cl_page *pg);
-
-/** @} transfer */
-
-
-/**
- * \name helper routines
- * Functions to discard, delete and export a cl_page.
- */
-/** @{ */
-void    cl_page_discard      (const struct lu_env *env, struct cl_io *io,
-			      struct cl_page *pg);
-void    cl_page_delete       (const struct lu_env *env, struct cl_page *pg);
-int     cl_page_unmap	(const struct lu_env *env, struct cl_io *io,
-			      struct cl_page *pg);
-int     cl_page_is_vmlocked  (const struct lu_env *env,
-			      const struct cl_page *pg);
-void    cl_page_export       (const struct lu_env *env,
-			      struct cl_page *pg, int uptodate);
-int     cl_page_is_under_lock(const struct lu_env *env, struct cl_io *io,
-			      struct cl_page *page);
-loff_t  cl_offset	    (const struct cl_object *obj, pgoff_t idx);
-pgoff_t cl_index	     (const struct cl_object *obj, loff_t offset);
-int     cl_page_size	 (const struct cl_object *obj);
-int     cl_pages_prune       (const struct lu_env *env, struct cl_object *obj);
-
-void cl_lock_print      (const struct lu_env *env, void *cookie,
-			 lu_printer_t printer, const struct cl_lock *lock);
-void cl_lock_descr_print(const struct lu_env *env, void *cookie,
-			 lu_printer_t printer,
-			 const struct cl_lock_descr *descr);
-/* @} helper */
-
-/** @} cl_page */
-
-/** \defgroup cl_lock cl_lock
- * @{ */
-
-struct cl_lock *cl_lock_hold(const struct lu_env *env, const struct cl_io *io,
-			     const struct cl_lock_descr *need,
-			     const char *scope, const void *source);
-struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io,
-			     const struct cl_lock_descr *need,
-			     const char *scope, const void *source);
-struct cl_lock *cl_lock_request(const struct lu_env *env, struct cl_io *io,
-				const struct cl_lock_descr *need,
-				const char *scope, const void *source);
-struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env,
-				 struct cl_object *obj, pgoff_t index,
-				 struct cl_lock *except, int pending,
-				 int canceld);
-static inline struct cl_lock *cl_lock_at_page(const struct lu_env *env,
-					      struct cl_object *obj,
-					      struct cl_page *page,
-					      struct cl_lock *except,
-					      int pending, int canceld)
-{
-	LASSERT(cl_object_header(obj) == cl_object_header(page->cp_obj));
-	return cl_lock_at_pgoff(env, obj, page->cp_index, except,
-				pending, canceld);
-}
-
-const struct cl_lock_slice *cl_lock_at(const struct cl_lock *lock,
-				       const struct lu_device_type *dtype);
-
-void  cl_lock_get       (struct cl_lock *lock);
-void  cl_lock_get_trust (struct cl_lock *lock);
-void  cl_lock_put       (const struct lu_env *env, struct cl_lock *lock);
-void  cl_lock_hold_add  (const struct lu_env *env, struct cl_lock *lock,
-			 const char *scope, const void *source);
-void cl_lock_hold_release(const struct lu_env *env, struct cl_lock *lock,
-			  const char *scope, const void *source);
-void  cl_lock_unhold    (const struct lu_env *env, struct cl_lock *lock,
-			 const char *scope, const void *source);
-void  cl_lock_release   (const struct lu_env *env, struct cl_lock *lock,
-			 const char *scope, const void *source);
-void  cl_lock_user_add  (const struct lu_env *env, struct cl_lock *lock);
-void  cl_lock_user_del  (const struct lu_env *env, struct cl_lock *lock);
-
-enum cl_lock_state cl_lock_intransit(const struct lu_env *env,
-				     struct cl_lock *lock);
-void cl_lock_extransit(const struct lu_env *env, struct cl_lock *lock,
-		       enum cl_lock_state state);
-int cl_lock_is_intransit(struct cl_lock *lock);
-
-int cl_lock_enqueue_wait(const struct lu_env *env, struct cl_lock *lock,
-			 int keep_mutex);
-
-/** \name statemachine statemachine
- * Interface to lock state machine consists of 3 parts:
- *
- *     - "try" functions that attempt to effect a state transition. If state
- *     transition is not possible right now (e.g., if it has to wait for some
- *     asynchronous event to occur), these functions return
- *     cl_lock_transition::CLO_WAIT.
- *
- *     - "non-try" functions that implement synchronous blocking interface on
- *     top of non-blocking "try" functions. These functions repeatedly call
- *     corresponding "try" versions, and if state transition is not possible
- *     immediately, wait for lock state change.
- *
- *     - methods from cl_lock_operations, called by "try" functions. Lock can
- *     be advanced to the target state only when all layers voted that they
- *     are ready for this transition. "Try" functions call methods under lock
- *     mutex. If a layer had to release a mutex, it re-acquires it and returns
- *     cl_lock_transition::CLO_REPEAT, causing "try" function to call all
- *     layers again.
- *
- * TRY	      NON-TRY      METHOD			    FINAL STATE
- *
- * cl_enqueue_try() cl_enqueue() cl_lock_operations::clo_enqueue() CLS_ENQUEUED
- *
- * cl_wait_try()    cl_wait()    cl_lock_operations::clo_wait()    CLS_HELD
- *
- * cl_unuse_try()   cl_unuse()   cl_lock_operations::clo_unuse()   CLS_CACHED
- *
- * cl_use_try()     NONE	 cl_lock_operations::clo_use()     CLS_HELD
- *
- * @{ */
-
-int   cl_enqueue    (const struct lu_env *env, struct cl_lock *lock,
-		     struct cl_io *io, __u32 flags);
-int   cl_wait       (const struct lu_env *env, struct cl_lock *lock);
-void  cl_unuse      (const struct lu_env *env, struct cl_lock *lock);
-int   cl_enqueue_try(const struct lu_env *env, struct cl_lock *lock,
-		     struct cl_io *io, __u32 flags);
-int   cl_unuse_try  (const struct lu_env *env, struct cl_lock *lock);
-int   cl_wait_try   (const struct lu_env *env, struct cl_lock *lock);
-int   cl_use_try    (const struct lu_env *env, struct cl_lock *lock, int atomic);
-
-/** @} statemachine */
-
-void cl_lock_signal      (const struct lu_env *env, struct cl_lock *lock);
-int  cl_lock_state_wait  (const struct lu_env *env, struct cl_lock *lock);
-void cl_lock_state_set   (const struct lu_env *env, struct cl_lock *lock,
-			  enum cl_lock_state state);
-int  cl_queue_match      (const struct list_head *queue,
-			  const struct cl_lock_descr *need);
-
-void cl_lock_mutex_get  (const struct lu_env *env, struct cl_lock *lock);
-int  cl_lock_mutex_try  (const struct lu_env *env, struct cl_lock *lock);
-void cl_lock_mutex_put  (const struct lu_env *env, struct cl_lock *lock);
-int  cl_lock_is_mutexed (struct cl_lock *lock);
-int  cl_lock_nr_mutexed (const struct lu_env *env);
-int  cl_lock_discard_pages(const struct lu_env *env, struct cl_lock *lock);
-int  cl_lock_ext_match  (const struct cl_lock_descr *has,
-			 const struct cl_lock_descr *need);
-int  cl_lock_descr_match(const struct cl_lock_descr *has,
-			 const struct cl_lock_descr *need);
-int  cl_lock_mode_match (enum cl_lock_mode has, enum cl_lock_mode need);
-int  cl_lock_modify     (const struct lu_env *env, struct cl_lock *lock,
-			 const struct cl_lock_descr *desc);
-
-void cl_lock_closure_init (const struct lu_env *env,
-			   struct cl_lock_closure *closure,
-			   struct cl_lock *origin, int wait);
-void cl_lock_closure_fini (struct cl_lock_closure *closure);
-int  cl_lock_closure_build(const struct lu_env *env, struct cl_lock *lock,
-			   struct cl_lock_closure *closure);
-void cl_lock_disclosure   (const struct lu_env *env,
-			   struct cl_lock_closure *closure);
-int  cl_lock_enclosure    (const struct lu_env *env, struct cl_lock *lock,
-			   struct cl_lock_closure *closure);
-
-void cl_lock_cancel(const struct lu_env *env, struct cl_lock *lock);
-void cl_lock_delete(const struct lu_env *env, struct cl_lock *lock);
-void cl_lock_error (const struct lu_env *env, struct cl_lock *lock, int error);
-void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int wait);
-
-unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock);
-
-/** @} cl_lock */
-
-/** \defgroup cl_io cl_io
- * @{ */
-
-int   cl_io_init	 (const struct lu_env *env, struct cl_io *io,
-			  enum cl_io_type iot, struct cl_object *obj);
-int   cl_io_sub_init     (const struct lu_env *env, struct cl_io *io,
-			  enum cl_io_type iot, struct cl_object *obj);
-int   cl_io_rw_init      (const struct lu_env *env, struct cl_io *io,
-			  enum cl_io_type iot, loff_t pos, size_t count);
-int   cl_io_loop	 (const struct lu_env *env, struct cl_io *io);
-
-void  cl_io_fini	 (const struct lu_env *env, struct cl_io *io);
-int   cl_io_iter_init    (const struct lu_env *env, struct cl_io *io);
-void  cl_io_iter_fini    (const struct lu_env *env, struct cl_io *io);
-int   cl_io_lock	 (const struct lu_env *env, struct cl_io *io);
-void  cl_io_unlock       (const struct lu_env *env, struct cl_io *io);
-int   cl_io_start	(const struct lu_env *env, struct cl_io *io);
-void  cl_io_end	  (const struct lu_env *env, struct cl_io *io);
-int   cl_io_lock_add     (const struct lu_env *env, struct cl_io *io,
-			  struct cl_io_lock_link *link);
-int   cl_io_lock_alloc_add(const struct lu_env *env, struct cl_io *io,
-			   struct cl_lock_descr *descr);
-int   cl_io_read_page    (const struct lu_env *env, struct cl_io *io,
-			  struct cl_page *page);
-int   cl_io_prepare_write(const struct lu_env *env, struct cl_io *io,
-			  struct cl_page *page, unsigned from, unsigned to);
-int   cl_io_commit_write (const struct lu_env *env, struct cl_io *io,
-			  struct cl_page *page, unsigned from, unsigned to);
-int   cl_io_submit_rw    (const struct lu_env *env, struct cl_io *io,
-			  enum cl_req_type iot, struct cl_2queue *queue);
-int   cl_io_submit_sync  (const struct lu_env *env, struct cl_io *io,
-			  enum cl_req_type iot, struct cl_2queue *queue,
-			  long timeout);
-void  cl_io_rw_advance   (const struct lu_env *env, struct cl_io *io,
-			  size_t nob);
-int   cl_io_cancel       (const struct lu_env *env, struct cl_io *io,
-			  struct cl_page_list *queue);
-int   cl_io_is_going     (const struct lu_env *env);
-
-/**
- * True, iff \a io is an O_APPEND write(2).
- */
-static inline int cl_io_is_append(const struct cl_io *io)
-{
-	return io->ci_type == CIT_WRITE && io->u.ci_wr.wr_append;
-}
-
-static inline int cl_io_is_sync_write(const struct cl_io *io)
-{
-	return io->ci_type == CIT_WRITE && io->u.ci_wr.wr_sync;
-}
-
-static inline int cl_io_is_mkwrite(const struct cl_io *io)
-{
-	return io->ci_type == CIT_FAULT && io->u.ci_fault.ft_mkwrite;
-}
-
-/**
- * True, iff \a io is a truncate(2).
- */
-static inline int cl_io_is_trunc(const struct cl_io *io)
-{
-	return io->ci_type == CIT_SETATTR &&
-		(io->u.ci_setattr.sa_valid & ATTR_SIZE);
-}
-
-struct cl_io *cl_io_top(struct cl_io *io);
-
-void cl_io_print(const struct lu_env *env, void *cookie,
-		 lu_printer_t printer, const struct cl_io *io);
-
-#define CL_IO_SLICE_CLEAN(foo_io, base)					\
-do {									\
-	typeof(foo_io) __foo_io = (foo_io);				\
-									\
-	CLASSERT(offsetof(typeof(*__foo_io), base) == 0);		\
-	memset(&__foo_io->base + 1, 0,					\
-	       sizeof(*__foo_io) - sizeof(__foo_io->base));		\
-} while (0)
-
-/** @} cl_io */
-
-/** \defgroup cl_page_list cl_page_list
- * @{ */
-
-/**
- * Last page in the page list.
- */
-static inline struct cl_page *cl_page_list_last(struct cl_page_list *plist)
-{
-	LASSERT(plist->pl_nr > 0);
-	return list_entry(plist->pl_pages.prev, struct cl_page, cp_batch);
-}
-
-/**
- * Iterate over pages in a page list.
- */
-#define cl_page_list_for_each(page, list)			       \
-	list_for_each_entry((page), &(list)->pl_pages, cp_batch)
-
-/**
- * Iterate over pages in a page list, taking possible removals into account.
- */
-#define cl_page_list_for_each_safe(page, temp, list)		    \
-	list_for_each_entry_safe((page), (temp), &(list)->pl_pages, cp_batch)
-
-void cl_page_list_init   (struct cl_page_list *plist);
-void cl_page_list_add    (struct cl_page_list *plist, struct cl_page *page);
-void cl_page_list_move   (struct cl_page_list *dst, struct cl_page_list *src,
-			  struct cl_page *page);
-void cl_page_list_splice (struct cl_page_list *list,
-			  struct cl_page_list *head);
-void cl_page_list_del    (const struct lu_env *env,
-			  struct cl_page_list *plist, struct cl_page *page);
-void cl_page_list_disown (const struct lu_env *env,
-			  struct cl_io *io, struct cl_page_list *plist);
-int  cl_page_list_own    (const struct lu_env *env,
-			  struct cl_io *io, struct cl_page_list *plist);
-void cl_page_list_assume (const struct lu_env *env,
-			  struct cl_io *io, struct cl_page_list *plist);
-void cl_page_list_discard(const struct lu_env *env,
-			  struct cl_io *io, struct cl_page_list *plist);
-int  cl_page_list_unmap  (const struct lu_env *env,
-			  struct cl_io *io, struct cl_page_list *plist);
-void cl_page_list_fini   (const struct lu_env *env, struct cl_page_list *plist);
-
-void cl_2queue_init     (struct cl_2queue *queue);
-void cl_2queue_add      (struct cl_2queue *queue, struct cl_page *page);
-void cl_2queue_disown   (const struct lu_env *env,
-			 struct cl_io *io, struct cl_2queue *queue);
-void cl_2queue_assume   (const struct lu_env *env,
-			 struct cl_io *io, struct cl_2queue *queue);
-void cl_2queue_discard  (const struct lu_env *env,
-			 struct cl_io *io, struct cl_2queue *queue);
-void cl_2queue_fini     (const struct lu_env *env, struct cl_2queue *queue);
-void cl_2queue_init_page(struct cl_2queue *queue, struct cl_page *page);
-
-/** @} cl_page_list */
-
-/** \defgroup cl_req cl_req
- * @{ */
-struct cl_req *cl_req_alloc(const struct lu_env *env, struct cl_page *page,
-			    enum cl_req_type crt, int nr_objects);
-
-void cl_req_page_add  (const struct lu_env *env, struct cl_req *req,
-		       struct cl_page *page);
-void cl_req_page_done (const struct lu_env *env, struct cl_page *page);
-int  cl_req_prep      (const struct lu_env *env, struct cl_req *req);
-void cl_req_attr_set  (const struct lu_env *env, struct cl_req *req,
-		       struct cl_req_attr *attr, u64 flags);
-void cl_req_completion(const struct lu_env *env, struct cl_req *req, int ioret);
-
-/** \defgroup cl_sync_io cl_sync_io
- * @{ */
-
-/**
- * Anchor for synchronous transfer. This is allocated on a stack by thread
- * doing synchronous transfer, and a pointer to this structure is set up in
- * every page submitted for transfer. Transfer completion routine updates
- * anchor and wakes up waiting thread when transfer is complete.
- */
-struct cl_sync_io {
-	/** number of pages yet to be transferred. */
-	atomic_t		csi_sync_nr;
-	/** error code. */
-	int			csi_sync_rc;
-	/** barrier of destroy this structure */
-	atomic_t		csi_barrier;
-	/** completion to be signaled when transfer is complete. */
-	wait_queue_head_t		csi_waitq;
-};
-
-void cl_sync_io_init(struct cl_sync_io *anchor, int nrpages);
-int  cl_sync_io_wait(const struct lu_env *env, struct cl_io *io,
-		     struct cl_page_list *queue, struct cl_sync_io *anchor,
-		     long timeout);
-void cl_sync_io_note(struct cl_sync_io *anchor, int ioret);
-
-/** @} cl_sync_io */
-
-/** @} cl_req */
-
-/** \defgroup cl_env cl_env
- *
- * lu_env handling for a client.
- *
- * lu_env is an environment within which lustre code executes. Its major part
- * is lu_context---a fast memory allocation mechanism that is used to conserve
- * precious kernel stack space. Originally lu_env was designed for a server,
- * where
- *
- *     - there is a (mostly) fixed number of threads, and
- *
- *     - call chains have no non-lustre portions inserted between lustre code.
- *
- * On a client both these assumption fails, because every user thread can
- * potentially execute lustre code as part of a system call, and lustre calls
- * into VFS or MM that call back into lustre.
- *
- * To deal with that, cl_env wrapper functions implement the following
- * optimizations:
- *
- *     - allocation and destruction of environment is amortized by caching no
- *     longer used environments instead of destroying them;
- *
- *     - there is a notion of "current" environment, attached to the kernel
- *     data structure representing current thread Top-level lustre code
- *     allocates an environment and makes it current, then calls into
- *     non-lustre code, that in turn calls lustre back. Low-level lustre
- *     code thus called can fetch environment created by the top-level code
- *     and reuse it, avoiding additional environment allocation.
- *       Right now, three interfaces can attach the cl_env to running thread:
- *       - cl_env_get
- *       - cl_env_implant
- *       - cl_env_reexit(cl_env_reenter had to be called priorly)
- *
- * \see lu_env, lu_context, lu_context_key
- * @{ */
-
-struct cl_env_nest {
-	int   cen_refcheck;
-	void *cen_cookie;
-};
-
-struct lu_env *cl_env_peek       (int *refcheck);
-struct lu_env *cl_env_get	(int *refcheck);
-struct lu_env *cl_env_alloc      (int *refcheck, __u32 tags);
-struct lu_env *cl_env_nested_get (struct cl_env_nest *nest);
-void	   cl_env_put	(struct lu_env *env, int *refcheck);
-void	   cl_env_nested_put (struct cl_env_nest *nest, struct lu_env *env);
-void	  *cl_env_reenter    (void);
-void	   cl_env_reexit     (void *cookie);
-void	   cl_env_implant    (struct lu_env *env, int *refcheck);
-void	   cl_env_unplant    (struct lu_env *env, int *refcheck);
-
-/** @} cl_env */
-
-/*
- * Misc
- */
-void cl_attr2lvb(struct ost_lvb *lvb, const struct cl_attr *attr);
-void cl_lvb2attr(struct cl_attr *attr, const struct ost_lvb *lvb);
-
-struct cl_device *cl_type_setup(const struct lu_env *env, struct lu_site *site,
-				struct lu_device_type *ldt,
-				struct lu_device *next);
-/** @} clio */
-
-int cl_global_init(void);
-void cl_global_fini(void);
-
-#endif /* _LINUX_CL_OBJECT_H */
diff --git a/drivers/staging/lustre/lustre/include/dt_object.h b/drivers/staging/lustre/lustre/include/dt_object.h
deleted file mode 100644
index abae31b41e74..000000000000
--- a/drivers/staging/lustre/lustre/include/dt_object.h
+++ /dev/null
@@ -1,1496 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LUSTRE_DT_OBJECT_H
-#define __LUSTRE_DT_OBJECT_H
-
-/** \defgroup dt dt
- * Sub-class of lu_object with methods common for "data" objects in OST stack.
- *
- * Data objects behave like regular files: you can read/write them, get and
- * set their attributes. Implementation of dt interface is supposed to
- * implement some form of garbage collection, normally reference counting
- * (nlink) based one.
- *
- * Examples: osd (lustre/osd) is an implementation of dt interface.
- * @{
- */
-
-
-/*
- * super-class definitions.
- */
-#include "lu_object.h"
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-struct seq_file;
-struct lustre_cfg;
-
-struct thandle;
-struct dt_device;
-struct dt_object;
-struct dt_index_features;
-struct niobuf_local;
-struct niobuf_remote;
-struct ldlm_enqueue_info;
-
-typedef enum {
-	MNTOPT_USERXATTR	= 0x00000001,
-	MNTOPT_ACL	      = 0x00000002,
-} mntopt_t;
-
-struct dt_device_param {
-	unsigned	   ddp_max_name_len;
-	unsigned	   ddp_max_nlink;
-	unsigned	   ddp_block_shift;
-	mntopt_t	   ddp_mntopts;
-	unsigned	   ddp_max_ea_size;
-	void	      *ddp_mnt; /* XXX: old code can retrieve mnt -bzzz */
-	int		ddp_mount_type;
-	unsigned long long ddp_maxbytes;
-	/* percentage of available space to reserve for grant error margin */
-	int		ddp_grant_reserved;
-	/* per-inode space consumption */
-	short	      ddp_inodespace;
-	/* per-fragment grant overhead to be used by client for grant
-	 * calculation */
-	int		ddp_grant_frag;
-};
-
-/**
- * Per-transaction commit callback function
- */
-struct dt_txn_commit_cb;
-typedef void (*dt_cb_t)(struct lu_env *env, struct thandle *th,
-			struct dt_txn_commit_cb *cb, int err);
-/**
- * Special per-transaction callback for cases when just commit callback
- * is needed and per-device callback are not convenient to use
- */
-#define TRANS_COMMIT_CB_MAGIC	0xa0a00a0a
-#define MAX_COMMIT_CB_STR_LEN	32
-
-struct dt_txn_commit_cb {
-	struct list_head	dcb_linkage;
-	dt_cb_t		dcb_func;
-	__u32		dcb_magic;
-	char		dcb_name[MAX_COMMIT_CB_STR_LEN];
-};
-
-/**
- * Operations on dt device.
- */
-struct dt_device_operations {
-	/**
-	 * Return device-wide statistics.
-	 */
-	int   (*dt_statfs)(const struct lu_env *env,
-			   struct dt_device *dev, struct obd_statfs *osfs);
-	/**
-	 * Create transaction, described by \a param.
-	 */
-	struct thandle *(*dt_trans_create)(const struct lu_env *env,
-					   struct dt_device *dev);
-	/**
-	 * Start transaction, described by \a param.
-	 */
-	int   (*dt_trans_start)(const struct lu_env *env,
-				struct dt_device *dev, struct thandle *th);
-	/**
-	 * Finish previously started transaction.
-	 */
-	int   (*dt_trans_stop)(const struct lu_env *env,
-			       struct thandle *th);
-	/**
-	 * Add commit callback to the transaction.
-	 */
-	int   (*dt_trans_cb_add)(struct thandle *th,
-				 struct dt_txn_commit_cb *dcb);
-	/**
-	 * Return fid of root index object.
-	 */
-	int   (*dt_root_get)(const struct lu_env *env,
-			     struct dt_device *dev, struct lu_fid *f);
-	/**
-	 * Return device configuration data.
-	 */
-	void  (*dt_conf_get)(const struct lu_env *env,
-			     const struct dt_device *dev,
-			     struct dt_device_param *param);
-	/**
-	 *  handling device state, mostly for tests
-	 */
-	int   (*dt_sync)(const struct lu_env *env, struct dt_device *dev);
-	int   (*dt_ro)(const struct lu_env *env, struct dt_device *dev);
-	/**
-	  * Start a transaction commit asynchronously
-	  *
-	  * \param env environment
-	  * \param dev dt_device to start commit on
-	  *
-	  * \return 0 success, negative value if error
-	  */
-	 int   (*dt_commit_async)(const struct lu_env *env,
-				  struct dt_device *dev);
-	/**
-	 * Initialize capability context.
-	 */
-	int   (*dt_init_capa_ctxt)(const struct lu_env *env,
-				   struct dt_device *dev,
-				   int mode, unsigned long timeout,
-				   __u32 alg, struct lustre_capa_key *keys);
-};
-
-struct dt_index_features {
-	/** required feature flags from enum dt_index_flags */
-	__u32 dif_flags;
-	/** minimal required key size */
-	size_t dif_keysize_min;
-	/** maximal required key size, 0 if no limit */
-	size_t dif_keysize_max;
-	/** minimal required record size */
-	size_t dif_recsize_min;
-	/** maximal required record size, 0 if no limit */
-	size_t dif_recsize_max;
-	/** pointer size for record */
-	size_t dif_ptrsize;
-};
-
-enum dt_index_flags {
-	/** index supports variable sized keys */
-	DT_IND_VARKEY = 1 << 0,
-	/** index supports variable sized records */
-	DT_IND_VARREC = 1 << 1,
-	/** index can be modified */
-	DT_IND_UPDATE = 1 << 2,
-	/** index supports records with non-unique (duplicate) keys */
-	DT_IND_NONUNQ = 1 << 3,
-	/**
-	 * index support fixed-size keys sorted with natural numerical way
-	 * and is able to return left-side value if no exact value found
-	 */
-	DT_IND_RANGE = 1 << 4,
-};
-
-/**
- * Features, required from index to support file system directories (mapping
- * names to fids).
- */
-extern const struct dt_index_features dt_directory_features;
-extern const struct dt_index_features dt_otable_features;
-extern const struct dt_index_features dt_lfsck_features;
-
-/* index features supported by the accounting objects */
-extern const struct dt_index_features dt_acct_features;
-
-/* index features supported by the quota global indexes */
-extern const struct dt_index_features dt_quota_glb_features;
-
-/* index features supported by the quota slave indexes */
-extern const struct dt_index_features dt_quota_slv_features;
-
-/**
- * This is a general purpose dt allocation hint.
- * It now contains the parent object.
- * It can contain any allocation hint in the future.
- */
-struct dt_allocation_hint {
-	struct dt_object	   *dah_parent;
-	__u32		       dah_mode;
-};
-
-/**
- * object type specifier.
- */
-
-enum dt_format_type {
-	DFT_REGULAR,
-	DFT_DIR,
-	/** for mknod */
-	DFT_NODE,
-	/** for special index */
-	DFT_INDEX,
-	/** for symbolic link */
-	DFT_SYM,
-};
-
-/**
- * object format specifier.
- */
-struct dt_object_format {
-	/** type for dt object */
-	enum dt_format_type dof_type;
-	union {
-		struct dof_regular {
-			int striped;
-		} dof_reg;
-		struct dof_dir {
-		} dof_dir;
-		struct dof_node {
-		} dof_node;
-		/**
-		 * special index need feature as parameter to create
-		 * special idx
-		 */
-		struct dof_index {
-			const struct dt_index_features *di_feat;
-		} dof_idx;
-	} u;
-};
-
-enum dt_format_type dt_mode_to_dft(__u32 mode);
-
-typedef __u64 dt_obj_version_t;
-
-/**
- * Per-dt-object operations.
- */
-struct dt_object_operations {
-	void  (*do_read_lock)(const struct lu_env *env,
-			      struct dt_object *dt, unsigned role);
-	void  (*do_write_lock)(const struct lu_env *env,
-			       struct dt_object *dt, unsigned role);
-	void  (*do_read_unlock)(const struct lu_env *env,
-				struct dt_object *dt);
-	void  (*do_write_unlock)(const struct lu_env *env,
-				 struct dt_object *dt);
-	int  (*do_write_locked)(const struct lu_env *env,
-				struct dt_object *dt);
-	/**
-	 * Note: following ->do_{x,}attr_{set,get}() operations are very
-	 * similar to ->moo_{x,}attr_{set,get}() operations in struct
-	 * md_object_operations (see md_object.h). These operations are not in
-	 * lu_object_operations, because ->do_{x,}attr_set() versions take
-	 * transaction handle as an argument (this transaction is started by
-	 * caller). We might factor ->do_{x,}attr_get() into
-	 * lu_object_operations, but that would break existing symmetry.
-	 */
-
-	/**
-	 * Return standard attributes.
-	 *
-	 * precondition: lu_object_exists(&dt->do_lu);
-	 */
-	int   (*do_attr_get)(const struct lu_env *env,
-			     struct dt_object *dt, struct lu_attr *attr,
-			     struct lustre_capa *capa);
-	/**
-	 * Set standard attributes.
-	 *
-	 * precondition: dt_object_exists(dt);
-	 */
-	int   (*do_declare_attr_set)(const struct lu_env *env,
-				     struct dt_object *dt,
-				     const struct lu_attr *attr,
-				     struct thandle *handle);
-	int   (*do_attr_set)(const struct lu_env *env,
-			     struct dt_object *dt,
-			     const struct lu_attr *attr,
-			     struct thandle *handle,
-			     struct lustre_capa *capa);
-	/**
-	 * Return a value of an extended attribute.
-	 *
-	 * precondition: dt_object_exists(dt);
-	 */
-	int   (*do_xattr_get)(const struct lu_env *env, struct dt_object *dt,
-			      struct lu_buf *buf, const char *name,
-			      struct lustre_capa *capa);
-	/**
-	 * Set value of an extended attribute.
-	 *
-	 * \a fl - flags from enum lu_xattr_flags
-	 *
-	 * precondition: dt_object_exists(dt);
-	 */
-	int   (*do_declare_xattr_set)(const struct lu_env *env,
-				      struct dt_object *dt,
-				      const struct lu_buf *buf,
-				      const char *name, int fl,
-				      struct thandle *handle);
-	int   (*do_xattr_set)(const struct lu_env *env,
-			      struct dt_object *dt, const struct lu_buf *buf,
-			      const char *name, int fl, struct thandle *handle,
-			      struct lustre_capa *capa);
-	/**
-	 * Delete existing extended attribute.
-	 *
-	 * precondition: dt_object_exists(dt);
-	 */
-	int   (*do_declare_xattr_del)(const struct lu_env *env,
-				      struct dt_object *dt,
-				      const char *name, struct thandle *handle);
-	int   (*do_xattr_del)(const struct lu_env *env,
-			      struct dt_object *dt,
-			      const char *name, struct thandle *handle,
-			      struct lustre_capa *capa);
-	/**
-	 * Place list of existing extended attributes into \a buf (which has
-	 * length len).
-	 *
-	 * precondition: dt_object_exists(dt);
-	 */
-	int   (*do_xattr_list)(const struct lu_env *env,
-			       struct dt_object *dt, struct lu_buf *buf,
-			       struct lustre_capa *capa);
-	/**
-	 * Init allocation hint using parent object and child mode.
-	 * (1) The \a parent might be NULL if this is a partial creation for
-	 *     remote object.
-	 * (2) The type of child is in \a child_mode.
-	 * (3) The result hint is stored in \a ah;
-	 */
-	void  (*do_ah_init)(const struct lu_env *env,
-			    struct dt_allocation_hint *ah,
-			    struct dt_object *parent,
-			    struct dt_object *child,
-			    umode_t child_mode);
-	/**
-	 * Create new object on this device.
-	 *
-	 * precondition: !dt_object_exists(dt);
-	 * postcondition: ergo(result == 0, dt_object_exists(dt));
-	 */
-	int   (*do_declare_create)(const struct lu_env *env,
-				   struct dt_object *dt,
-				   struct lu_attr *attr,
-				   struct dt_allocation_hint *hint,
-				   struct dt_object_format *dof,
-				   struct thandle *th);
-	int   (*do_create)(const struct lu_env *env, struct dt_object *dt,
-			   struct lu_attr *attr,
-			   struct dt_allocation_hint *hint,
-			   struct dt_object_format *dof,
-			   struct thandle *th);
-
-	/**
-	  Destroy object on this device
-	 * precondition: !dt_object_exists(dt);
-	 * postcondition: ergo(result == 0, dt_object_exists(dt));
-	 */
-	int   (*do_declare_destroy)(const struct lu_env *env,
-				    struct dt_object *dt,
-				    struct thandle *th);
-	int   (*do_destroy)(const struct lu_env *env, struct dt_object *dt,
-			    struct thandle *th);
-
-	/**
-	 * Announce that this object is going to be used as an index. This
-	 * operation check that object supports indexing operations and
-	 * installs appropriate dt_index_operations vector on success.
-	 *
-	 * Also probes for features. Operation is successful if all required
-	 * features are supported.
-	 */
-	int   (*do_index_try)(const struct lu_env *env,
-			      struct dt_object *dt,
-			      const struct dt_index_features *feat);
-	/**
-	 * Add nlink of the object
-	 * precondition: dt_object_exists(dt);
-	 */
-	int   (*do_declare_ref_add)(const struct lu_env *env,
-				    struct dt_object *dt, struct thandle *th);
-	int   (*do_ref_add)(const struct lu_env *env,
-			    struct dt_object *dt, struct thandle *th);
-	/**
-	 * Del nlink of the object
-	 * precondition: dt_object_exists(dt);
-	 */
-	int   (*do_declare_ref_del)(const struct lu_env *env,
-				    struct dt_object *dt, struct thandle *th);
-	int   (*do_ref_del)(const struct lu_env *env,
-			    struct dt_object *dt, struct thandle *th);
-
-	struct obd_capa *(*do_capa_get)(const struct lu_env *env,
-					struct dt_object *dt,
-					struct lustre_capa *old,
-					__u64 opc);
-	int (*do_object_sync)(const struct lu_env *env, struct dt_object *obj,
-			      __u64 start, __u64 end);
-	/**
-	 * Get object info of next level. Currently, only get inode from osd.
-	 * This is only used by quota b=16542
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*do_data_get)(const struct lu_env *env, struct dt_object *dt,
-			   void **data);
-
-	/**
-	 * Lock object.
-	 */
-	int (*do_object_lock)(const struct lu_env *env, struct dt_object *dt,
-			      struct lustre_handle *lh,
-			      struct ldlm_enqueue_info *einfo,
-			      void *policy);
-};
-
-/**
- * Per-dt-object operations on "file body".
- */
-struct dt_body_operations {
-	/**
-	 * precondition: dt_object_exists(dt);
-	 */
-	ssize_t (*dbo_read)(const struct lu_env *env, struct dt_object *dt,
-			    struct lu_buf *buf, loff_t *pos,
-			    struct lustre_capa *capa);
-	/**
-	 * precondition: dt_object_exists(dt);
-	 */
-	ssize_t (*dbo_declare_write)(const struct lu_env *env,
-				     struct dt_object *dt,
-				     const loff_t size, loff_t pos,
-				     struct thandle *handle);
-	ssize_t (*dbo_write)(const struct lu_env *env, struct dt_object *dt,
-			     const struct lu_buf *buf, loff_t *pos,
-			     struct thandle *handle, struct lustre_capa *capa,
-			     int ignore_quota);
-	/*
-	 * methods for zero-copy IO
-	 */
-
-	/*
-	 * precondition: dt_object_exists(dt);
-	 * returns:
-	 * < 0 - error code
-	 * = 0 - illegal
-	 * > 0 - number of local buffers prepared
-	 */
-	int (*dbo_bufs_get)(const struct lu_env *env, struct dt_object *dt,
-			    loff_t pos, ssize_t len, struct niobuf_local *lb,
-			    int rw, struct lustre_capa *capa);
-	/*
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dbo_bufs_put)(const struct lu_env *env, struct dt_object *dt,
-			    struct niobuf_local *lb, int nr);
-	/*
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dbo_write_prep)(const struct lu_env *env, struct dt_object *dt,
-			      struct niobuf_local *lb, int nr);
-	/*
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dbo_declare_write_commit)(const struct lu_env *env,
-					struct dt_object *dt,
-					struct niobuf_local *,
-					int, struct thandle *);
-	/*
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dbo_write_commit)(const struct lu_env *env, struct dt_object *dt,
-				struct niobuf_local *, int, struct thandle *);
-	/*
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dbo_read_prep)(const struct lu_env *env, struct dt_object *dt,
-			     struct niobuf_local *lnb, int nr);
-	int (*dbo_fiemap_get)(const struct lu_env *env, struct dt_object *dt,
-			      struct ll_user_fiemap *fm);
-	/**
-	 * Punch object's content
-	 * precondition: regular object, not index
-	 */
-	int   (*dbo_declare_punch)(const struct lu_env *, struct dt_object *,
-				  __u64, __u64, struct thandle *th);
-	int   (*dbo_punch)(const struct lu_env *env, struct dt_object *dt,
-			  __u64 start, __u64 end, struct thandle *th,
-			  struct lustre_capa *capa);
-};
-
-/**
- * Incomplete type of index record.
- */
-struct dt_rec;
-
-/**
- * Incomplete type of index key.
- */
-struct dt_key;
-
-/**
- * Incomplete type of dt iterator.
- */
-struct dt_it;
-
-/**
- * Per-dt-object operations on object as index.
- */
-struct dt_index_operations {
-	/**
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dio_lookup)(const struct lu_env *env, struct dt_object *dt,
-			  struct dt_rec *rec, const struct dt_key *key,
-			  struct lustre_capa *capa);
-	/**
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dio_declare_insert)(const struct lu_env *env,
-				  struct dt_object *dt,
-				  const struct dt_rec *rec,
-				  const struct dt_key *key,
-				  struct thandle *handle);
-	int (*dio_insert)(const struct lu_env *env, struct dt_object *dt,
-			  const struct dt_rec *rec, const struct dt_key *key,
-			  struct thandle *handle, struct lustre_capa *capa,
-			  int ignore_quota);
-	/**
-	 * precondition: dt_object_exists(dt);
-	 */
-	int (*dio_declare_delete)(const struct lu_env *env,
-				  struct dt_object *dt,
-				  const struct dt_key *key,
-				  struct thandle *handle);
-	int (*dio_delete)(const struct lu_env *env, struct dt_object *dt,
-			  const struct dt_key *key, struct thandle *handle,
-			  struct lustre_capa *capa);
-	/**
-	 * Iterator interface
-	 */
-	struct dt_it_ops {
-		/**
-		 * Allocate and initialize new iterator.
-		 *
-		 * precondition: dt_object_exists(dt);
-		 */
-		struct dt_it *(*init)(const struct lu_env *env,
-				      struct dt_object *dt,
-				      __u32 attr,
-				      struct lustre_capa *capa);
-		void	  (*fini)(const struct lu_env *env,
-				      struct dt_it *di);
-		int	    (*get)(const struct lu_env *env,
-				      struct dt_it *di,
-				      const struct dt_key *key);
-		void	   (*put)(const struct lu_env *env,
-				      struct dt_it *di);
-		int	   (*next)(const struct lu_env *env,
-				      struct dt_it *di);
-		struct dt_key *(*key)(const struct lu_env *env,
-				      const struct dt_it *di);
-		int       (*key_size)(const struct lu_env *env,
-				      const struct dt_it *di);
-		int	    (*rec)(const struct lu_env *env,
-				      const struct dt_it *di,
-				      struct dt_rec *rec,
-				      __u32 attr);
-		__u64	(*store)(const struct lu_env *env,
-				      const struct dt_it *di);
-		int	   (*load)(const struct lu_env *env,
-				      const struct dt_it *di, __u64 hash);
-		int	(*key_rec)(const struct lu_env *env,
-				      const struct dt_it *di, void *key_rec);
-	} dio_it;
-};
-
-enum dt_otable_it_valid {
-	DOIV_ERROR_HANDLE	= 0x0001,
-};
-
-enum dt_otable_it_flags {
-	/* Exit when fail. */
-	DOIF_FAILOUT	= 0x0001,
-
-	/* Reset iteration position to the device beginning. */
-	DOIF_RESET	= 0x0002,
-
-	/* There is up layer component uses the iteration. */
-	DOIF_OUTUSED	= 0x0004,
-};
-
-/* otable based iteration needs to use the common DT interation APIs.
- * To initialize the iteration, it needs call dio_it::init() firstly.
- * Here is how the otable based iteration should prepare arguments to
- * call dt_it_ops::init().
- *
- * For otable based iteration, the 32-bits 'attr' for dt_it_ops::init()
- * is composed of two parts:
- * low 16-bits is for valid bits, high 16-bits is for flags bits. */
-#define DT_OTABLE_IT_FLAGS_SHIFT	16
-#define DT_OTABLE_IT_FLAGS_MASK 	0xffff0000
-
-struct dt_device {
-	struct lu_device		   dd_lu_dev;
-	const struct dt_device_operations *dd_ops;
-
-	/**
-	 * List of dt_txn_callback (see below). This is not protected in any
-	 * way, because callbacks are supposed to be added/deleted only during
-	 * single-threaded start-up shut-down procedures.
-	 */
-	struct list_head			 dd_txn_callbacks;
-};
-
-int  dt_device_init(struct dt_device *dev, struct lu_device_type *t);
-void dt_device_fini(struct dt_device *dev);
-
-static inline int lu_device_is_dt(const struct lu_device *d)
-{
-	return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_DT);
-}
-
-static inline struct dt_device *lu2dt_dev(struct lu_device *l)
-{
-	LASSERT(lu_device_is_dt(l));
-	return container_of0(l, struct dt_device, dd_lu_dev);
-}
-
-struct dt_object {
-	struct lu_object		   do_lu;
-	const struct dt_object_operations *do_ops;
-	const struct dt_body_operations   *do_body_ops;
-	const struct dt_index_operations  *do_index_ops;
-};
-
-/*
- * In-core representation of per-device local object OID storage
- */
-struct local_oid_storage {
-	/* all initialized llog systems on this node linked by this */
-	struct list_head	  los_list;
-
-	/* how many handle's reference this los has */
-	atomic_t	  los_refcount;
-	struct dt_device *los_dev;
-	struct dt_object *los_obj;
-
-	/* data used to generate new fids */
-	struct mutex	  los_id_lock;
-	__u64		  los_seq;
-	__u32		  los_last_oid;
-};
-
-static inline struct dt_object *lu2dt(struct lu_object *l)
-{
-	LASSERT(l == NULL || IS_ERR(l) || lu_device_is_dt(l->lo_dev));
-	return container_of0(l, struct dt_object, do_lu);
-}
-
-int  dt_object_init(struct dt_object *obj,
-		    struct lu_object_header *h, struct lu_device *d);
-
-void dt_object_fini(struct dt_object *obj);
-
-static inline int dt_object_exists(const struct dt_object *dt)
-{
-	return lu_object_exists(&dt->do_lu);
-}
-
-static inline int dt_object_remote(const struct dt_object *dt)
-{
-	return lu_object_remote(&dt->do_lu);
-}
-
-static inline struct dt_object *lu2dt_obj(struct lu_object *o)
-{
-	LASSERT(ergo(o != NULL, lu_device_is_dt(o->lo_dev)));
-	return container_of0(o, struct dt_object, do_lu);
-}
-
-/**
- * This is the general purpose transaction handle.
- * 1. Transaction Life Cycle
- *      This transaction handle is allocated upon starting a new transaction,
- *      and deallocated after this transaction is committed.
- * 2. Transaction Nesting
- *      We do _NOT_ support nested transaction. So, every thread should only
- *      have one active transaction, and a transaction only belongs to one
- *      thread. Due to this, transaction handle need no reference count.
- * 3. Transaction & dt_object locking
- *      dt_object locks should be taken inside transaction.
- * 4. Transaction & RPC
- *      No RPC request should be issued inside transaction.
- */
-struct thandle {
-	/** the dt device on which the transactions are executed */
-	struct dt_device *th_dev;
-
-	/** context for this transaction, tag is LCT_TX_HANDLE */
-	struct lu_context th_ctx;
-
-	/** additional tags (layers can add in declare) */
-	__u32	     th_tags;
-
-	/** the last operation result in this transaction.
-	 * this value is used in recovery */
-	__s32	     th_result;
-
-	/** whether we need sync commit */
-	unsigned int		th_sync:1;
-
-	/* local transation, no need to inform other layers */
-	unsigned int		th_local:1;
-
-	/* In DNE, one transaction can be disassemblied into
-	 * updates on several different MDTs, and these updates
-	 * will be attached to th_remote_update_list per target.
-	 * Only single thread will access the list, no need lock
-	 */
-	struct list_head		th_remote_update_list;
-	struct update_request	*th_current_request;
-};
-
-/**
- * Transaction call-backs.
- *
- * These are invoked by osd (or underlying transaction engine) when
- * transaction changes state.
- *
- * Call-backs are used by upper layers to modify transaction parameters and to
- * perform some actions on for each transaction state transition. Typical
- * example is mdt registering call-back to write into last-received file
- * before each transaction commit.
- */
-struct dt_txn_callback {
-	int (*dtc_txn_start)(const struct lu_env *env,
-			     struct thandle *txn, void *cookie);
-	int (*dtc_txn_stop)(const struct lu_env *env,
-			    struct thandle *txn, void *cookie);
-	void (*dtc_txn_commit)(struct thandle *txn, void *cookie);
-	void		*dtc_cookie;
-	__u32		dtc_tag;
-	struct list_head	   dtc_linkage;
-};
-
-void dt_txn_callback_add(struct dt_device *dev, struct dt_txn_callback *cb);
-void dt_txn_callback_del(struct dt_device *dev, struct dt_txn_callback *cb);
-
-int dt_txn_hook_start(const struct lu_env *env,
-		      struct dt_device *dev, struct thandle *txn);
-int dt_txn_hook_stop(const struct lu_env *env, struct thandle *txn);
-void dt_txn_hook_commit(struct thandle *txn);
-
-int dt_try_as_dir(const struct lu_env *env, struct dt_object *obj);
-
-/**
- * Callback function used for parsing path.
- * \see llo_store_resolve
- */
-typedef int (*dt_entry_func_t)(const struct lu_env *env,
-			    const char *name,
-			    void *pvt);
-
-#define DT_MAX_PATH 1024
-
-int dt_path_parser(const struct lu_env *env,
-		   char *local, dt_entry_func_t entry_func,
-		   void *data);
-
-struct dt_object *
-dt_store_resolve(const struct lu_env *env, struct dt_device *dt,
-		 const char *path, struct lu_fid *fid);
-
-struct dt_object *dt_store_open(const struct lu_env *env,
-				struct dt_device *dt,
-				const char *dirname,
-				const char *filename,
-				struct lu_fid *fid);
-
-struct dt_object *dt_find_or_create(const struct lu_env *env,
-				    struct dt_device *dt,
-				    const struct lu_fid *fid,
-				    struct dt_object_format *dof,
-				    struct lu_attr *attr);
-
-struct dt_object *dt_locate_at(const struct lu_env *env,
-			       struct dt_device *dev,
-			       const struct lu_fid *fid,
-			       struct lu_device *top_dev);
-static inline struct dt_object *
-dt_locate(const struct lu_env *env, struct dt_device *dev,
-	  const struct lu_fid *fid)
-{
-	return dt_locate_at(env, dev, fid, dev->dd_lu_dev.ld_site->ls_top_dev);
-}
-
-
-int local_oid_storage_init(const struct lu_env *env, struct dt_device *dev,
-			   const struct lu_fid *first_fid,
-			   struct local_oid_storage **los);
-void local_oid_storage_fini(const struct lu_env *env,
-			    struct local_oid_storage *los);
-int local_object_fid_generate(const struct lu_env *env,
-			      struct local_oid_storage *los,
-			      struct lu_fid *fid);
-int local_object_declare_create(const struct lu_env *env,
-				struct local_oid_storage *los,
-				struct dt_object *o,
-				struct lu_attr *attr,
-				struct dt_object_format *dof,
-				struct thandle *th);
-int local_object_create(const struct lu_env *env,
-			struct local_oid_storage *los,
-			struct dt_object *o,
-			struct lu_attr *attr, struct dt_object_format *dof,
-			struct thandle *th);
-struct dt_object *local_file_find_or_create(const struct lu_env *env,
-					    struct local_oid_storage *los,
-					    struct dt_object *parent,
-					    const char *name, __u32 mode);
-struct dt_object *local_file_find_or_create_with_fid(const struct lu_env *env,
-						     struct dt_device *dt,
-						     const struct lu_fid *fid,
-						     struct dt_object *parent,
-						     const char *name,
-						     __u32 mode);
-struct dt_object *
-local_index_find_or_create(const struct lu_env *env,
-			   struct local_oid_storage *los,
-			   struct dt_object *parent,
-			   const char *name, __u32 mode,
-			   const struct dt_index_features *ft);
-struct dt_object *
-local_index_find_or_create_with_fid(const struct lu_env *env,
-				    struct dt_device *dt,
-				    const struct lu_fid *fid,
-				    struct dt_object *parent,
-				    const char *name, __u32 mode,
-				    const struct dt_index_features *ft);
-int local_object_unlink(const struct lu_env *env, struct dt_device *dt,
-			struct dt_object *parent, const char *name);
-
-static inline int dt_object_lock(const struct lu_env *env,
-				 struct dt_object *o, struct lustre_handle *lh,
-				 struct ldlm_enqueue_info *einfo,
-				 void *policy)
-{
-	LASSERT(o);
-	LASSERT(o->do_ops);
-	LASSERT(o->do_ops->do_object_lock);
-	return o->do_ops->do_object_lock(env, o, lh, einfo, policy);
-}
-
-int dt_lookup_dir(const struct lu_env *env, struct dt_object *dir,
-		  const char *name, struct lu_fid *fid);
-
-static inline int dt_object_sync(const struct lu_env *env, struct dt_object *o,
-				 __u64 start, __u64 end)
-{
-	LASSERT(o);
-	LASSERT(o->do_ops);
-	LASSERT(o->do_ops->do_object_sync);
-	return o->do_ops->do_object_sync(env, o, start, end);
-}
-
-int dt_declare_version_set(const struct lu_env *env, struct dt_object *o,
-			   struct thandle *th);
-void dt_version_set(const struct lu_env *env, struct dt_object *o,
-		    dt_obj_version_t version, struct thandle *th);
-dt_obj_version_t dt_version_get(const struct lu_env *env, struct dt_object *o);
-
-
-int dt_read(const struct lu_env *env, struct dt_object *dt,
-	    struct lu_buf *buf, loff_t *pos);
-int dt_record_read(const struct lu_env *env, struct dt_object *dt,
-		   struct lu_buf *buf, loff_t *pos);
-int dt_record_write(const struct lu_env *env, struct dt_object *dt,
-		    const struct lu_buf *buf, loff_t *pos, struct thandle *th);
-typedef int (*dt_index_page_build_t)(const struct lu_env *env,
-				     union lu_page *lp, int nob,
-				     const struct dt_it_ops *iops,
-				     struct dt_it *it, __u32 attr, void *arg);
-int dt_index_walk(const struct lu_env *env, struct dt_object *obj,
-		  const struct lu_rdpg *rdpg, dt_index_page_build_t filler,
-		  void *arg);
-int dt_index_read(const struct lu_env *env, struct dt_device *dev,
-		  struct idx_info *ii, const struct lu_rdpg *rdpg);
-
-static inline struct thandle *dt_trans_create(const struct lu_env *env,
-					      struct dt_device *d)
-{
-	LASSERT(d->dd_ops->dt_trans_create);
-	return d->dd_ops->dt_trans_create(env, d);
-}
-
-static inline int dt_trans_start(const struct lu_env *env,
-				 struct dt_device *d, struct thandle *th)
-{
-	LASSERT(d->dd_ops->dt_trans_start);
-	return d->dd_ops->dt_trans_start(env, d, th);
-}
-
-/* for this transaction hooks shouldn't be called */
-static inline int dt_trans_start_local(const struct lu_env *env,
-				       struct dt_device *d, struct thandle *th)
-{
-	LASSERT(d->dd_ops->dt_trans_start);
-	th->th_local = 1;
-	return d->dd_ops->dt_trans_start(env, d, th);
-}
-
-static inline int dt_trans_stop(const struct lu_env *env,
-				struct dt_device *d, struct thandle *th)
-{
-	LASSERT(d->dd_ops->dt_trans_stop);
-	return d->dd_ops->dt_trans_stop(env, th);
-}
-
-static inline int dt_trans_cb_add(struct thandle *th,
-				  struct dt_txn_commit_cb *dcb)
-{
-	LASSERT(th->th_dev->dd_ops->dt_trans_cb_add);
-	dcb->dcb_magic = TRANS_COMMIT_CB_MAGIC;
-	return th->th_dev->dd_ops->dt_trans_cb_add(th, dcb);
-}
-/** @} dt */
-
-
-static inline int dt_declare_record_write(const struct lu_env *env,
-					  struct dt_object *dt,
-					  int size, loff_t pos,
-					  struct thandle *th)
-{
-	int rc;
-
-	LASSERTF(dt != NULL, "dt is NULL when we want to write record\n");
-	LASSERT(th != NULL);
-	LASSERT(dt->do_body_ops);
-	LASSERT(dt->do_body_ops->dbo_declare_write);
-	rc = dt->do_body_ops->dbo_declare_write(env, dt, size, pos, th);
-	return rc;
-}
-
-static inline int dt_declare_create(const struct lu_env *env,
-				    struct dt_object *dt,
-				    struct lu_attr *attr,
-				    struct dt_allocation_hint *hint,
-				    struct dt_object_format *dof,
-				    struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_declare_create);
-	return dt->do_ops->do_declare_create(env, dt, attr, hint, dof, th);
-}
-
-static inline int dt_create(const struct lu_env *env,
-				    struct dt_object *dt,
-				    struct lu_attr *attr,
-				    struct dt_allocation_hint *hint,
-				    struct dt_object_format *dof,
-				    struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_create);
-	return dt->do_ops->do_create(env, dt, attr, hint, dof, th);
-}
-
-static inline int dt_declare_destroy(const struct lu_env *env,
-				     struct dt_object *dt,
-				     struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_declare_destroy);
-	return dt->do_ops->do_declare_destroy(env, dt, th);
-}
-
-static inline int dt_destroy(const struct lu_env *env,
-			     struct dt_object *dt,
-			     struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_destroy);
-	return dt->do_ops->do_destroy(env, dt, th);
-}
-
-static inline void dt_read_lock(const struct lu_env *env,
-				struct dt_object *dt,
-				unsigned role)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_read_lock);
-	dt->do_ops->do_read_lock(env, dt, role);
-}
-
-static inline void dt_write_lock(const struct lu_env *env,
-				struct dt_object *dt,
-				unsigned role)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_write_lock);
-	dt->do_ops->do_write_lock(env, dt, role);
-}
-
-static inline void dt_read_unlock(const struct lu_env *env,
-				struct dt_object *dt)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_read_unlock);
-	dt->do_ops->do_read_unlock(env, dt);
-}
-
-static inline void dt_write_unlock(const struct lu_env *env,
-				struct dt_object *dt)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_write_unlock);
-	dt->do_ops->do_write_unlock(env, dt);
-}
-
-static inline int dt_write_locked(const struct lu_env *env,
-				  struct dt_object *dt)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_write_locked);
-	return dt->do_ops->do_write_locked(env, dt);
-}
-
-static inline int dt_attr_get(const struct lu_env *env, struct dt_object *dt,
-			      struct lu_attr *la, void *arg)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_attr_get);
-	return dt->do_ops->do_attr_get(env, dt, la, arg);
-}
-
-static inline int dt_declare_attr_set(const struct lu_env *env,
-				      struct dt_object *dt,
-				      const struct lu_attr *la,
-				      struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_declare_attr_set);
-	return dt->do_ops->do_declare_attr_set(env, dt, la, th);
-}
-
-static inline int dt_attr_set(const struct lu_env *env, struct dt_object *dt,
-			      const struct lu_attr *la, struct thandle *th,
-			      struct lustre_capa *capa)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_attr_set);
-	return dt->do_ops->do_attr_set(env, dt, la, th, capa);
-}
-
-static inline int dt_declare_ref_add(const struct lu_env *env,
-				     struct dt_object *dt, struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_declare_ref_add);
-	return dt->do_ops->do_declare_ref_add(env, dt, th);
-}
-
-static inline int dt_ref_add(const struct lu_env *env,
-			     struct dt_object *dt, struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_ref_add);
-	return dt->do_ops->do_ref_add(env, dt, th);
-}
-
-static inline int dt_declare_ref_del(const struct lu_env *env,
-				     struct dt_object *dt, struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_declare_ref_del);
-	return dt->do_ops->do_declare_ref_del(env, dt, th);
-}
-
-static inline int dt_ref_del(const struct lu_env *env,
-			     struct dt_object *dt, struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_ref_del);
-	return dt->do_ops->do_ref_del(env, dt, th);
-}
-
-static inline struct obd_capa *dt_capa_get(const struct lu_env *env,
-					   struct dt_object *dt,
-					   struct lustre_capa *old, __u64 opc)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_ref_del);
-	return dt->do_ops->do_capa_get(env, dt, old, opc);
-}
-
-static inline int dt_bufs_get(const struct lu_env *env, struct dt_object *d,
-			      struct niobuf_remote *rnb,
-			      struct niobuf_local *lnb, int rw,
-			      struct lustre_capa *capa)
-{
-	LASSERT(d);
-	LASSERT(d->do_body_ops);
-	LASSERT(d->do_body_ops->dbo_bufs_get);
-	return d->do_body_ops->dbo_bufs_get(env, d, rnb->offset,
-					    rnb->len, lnb, rw, capa);
-}
-
-static inline int dt_bufs_put(const struct lu_env *env, struct dt_object *d,
-			      struct niobuf_local *lnb, int n)
-{
-	LASSERT(d);
-	LASSERT(d->do_body_ops);
-	LASSERT(d->do_body_ops->dbo_bufs_put);
-	return d->do_body_ops->dbo_bufs_put(env, d, lnb, n);
-}
-
-static inline int dt_write_prep(const struct lu_env *env, struct dt_object *d,
-				struct niobuf_local *lnb, int n)
-{
-	LASSERT(d);
-	LASSERT(d->do_body_ops);
-	LASSERT(d->do_body_ops->dbo_write_prep);
-	return d->do_body_ops->dbo_write_prep(env, d, lnb, n);
-}
-
-static inline int dt_declare_write_commit(const struct lu_env *env,
-					  struct dt_object *d,
-					  struct niobuf_local *lnb,
-					  int n, struct thandle *th)
-{
-	LASSERTF(d != NULL, "dt is NULL when we want to declare write\n");
-	LASSERT(th != NULL);
-	return d->do_body_ops->dbo_declare_write_commit(env, d, lnb, n, th);
-}
-
-
-static inline int dt_write_commit(const struct lu_env *env,
-				  struct dt_object *d, struct niobuf_local *lnb,
-				  int n, struct thandle *th)
-{
-	LASSERT(d);
-	LASSERT(d->do_body_ops);
-	LASSERT(d->do_body_ops->dbo_write_commit);
-	return d->do_body_ops->dbo_write_commit(env, d, lnb, n, th);
-}
-
-static inline int dt_read_prep(const struct lu_env *env, struct dt_object *d,
-			       struct niobuf_local *lnb, int n)
-{
-	LASSERT(d);
-	LASSERT(d->do_body_ops);
-	LASSERT(d->do_body_ops->dbo_read_prep);
-	return d->do_body_ops->dbo_read_prep(env, d, lnb, n);
-}
-
-static inline int dt_declare_punch(const struct lu_env *env,
-				   struct dt_object *dt, __u64 start,
-				   __u64 end, struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_body_ops);
-	LASSERT(dt->do_body_ops->dbo_declare_punch);
-	return dt->do_body_ops->dbo_declare_punch(env, dt, start, end, th);
-}
-
-static inline int dt_punch(const struct lu_env *env, struct dt_object *dt,
-			   __u64 start, __u64 end, struct thandle *th,
-			   struct lustre_capa *capa)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_body_ops);
-	LASSERT(dt->do_body_ops->dbo_punch);
-	return dt->do_body_ops->dbo_punch(env, dt, start, end, th, capa);
-}
-
-static inline int dt_fiemap_get(const struct lu_env *env, struct dt_object *d,
-				struct ll_user_fiemap *fm)
-{
-	LASSERT(d);
-	if (d->do_body_ops == NULL)
-		return -EPROTO;
-	if (d->do_body_ops->dbo_fiemap_get == NULL)
-		return -EOPNOTSUPP;
-	return d->do_body_ops->dbo_fiemap_get(env, d, fm);
-}
-
-static inline int dt_statfs(const struct lu_env *env, struct dt_device *dev,
-			    struct obd_statfs *osfs)
-{
-	LASSERT(dev);
-	LASSERT(dev->dd_ops);
-	LASSERT(dev->dd_ops->dt_statfs);
-	return dev->dd_ops->dt_statfs(env, dev, osfs);
-}
-
-static inline int dt_root_get(const struct lu_env *env, struct dt_device *dev,
-			      struct lu_fid *f)
-{
-	LASSERT(dev);
-	LASSERT(dev->dd_ops);
-	LASSERT(dev->dd_ops->dt_root_get);
-	return dev->dd_ops->dt_root_get(env, dev, f);
-}
-
-static inline void dt_conf_get(const struct lu_env *env,
-			       const struct dt_device *dev,
-			       struct dt_device_param *param)
-{
-	LASSERT(dev);
-	LASSERT(dev->dd_ops);
-	LASSERT(dev->dd_ops->dt_conf_get);
-	return dev->dd_ops->dt_conf_get(env, dev, param);
-}
-
-static inline int dt_sync(const struct lu_env *env, struct dt_device *dev)
-{
-	LASSERT(dev);
-	LASSERT(dev->dd_ops);
-	LASSERT(dev->dd_ops->dt_sync);
-	return dev->dd_ops->dt_sync(env, dev);
-}
-
-static inline int dt_ro(const struct lu_env *env, struct dt_device *dev)
-{
-	LASSERT(dev);
-	LASSERT(dev->dd_ops);
-	LASSERT(dev->dd_ops->dt_ro);
-	return dev->dd_ops->dt_ro(env, dev);
-}
-
-static inline int dt_declare_insert(const struct lu_env *env,
-				    struct dt_object *dt,
-				    const struct dt_rec *rec,
-				    const struct dt_key *key,
-				    struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_index_ops);
-	LASSERT(dt->do_index_ops->dio_declare_insert);
-	return dt->do_index_ops->dio_declare_insert(env, dt, rec, key, th);
-}
-
-static inline int dt_insert(const struct lu_env *env,
-				    struct dt_object *dt,
-				    const struct dt_rec *rec,
-				    const struct dt_key *key,
-				    struct thandle *th,
-				    struct lustre_capa *capa,
-				    int noquota)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_index_ops);
-	LASSERT(dt->do_index_ops->dio_insert);
-	return dt->do_index_ops->dio_insert(env, dt, rec, key, th,
-					    capa, noquota);
-}
-
-static inline int dt_declare_xattr_del(const struct lu_env *env,
-				       struct dt_object *dt,
-				       const char *name,
-				       struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_declare_xattr_del);
-	return dt->do_ops->do_declare_xattr_del(env, dt, name, th);
-}
-
-static inline int dt_xattr_del(const struct lu_env *env,
-			       struct dt_object *dt, const char *name,
-			       struct thandle *th,
-			       struct lustre_capa *capa)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_xattr_del);
-	return dt->do_ops->do_xattr_del(env, dt, name, th, capa);
-}
-
-static inline int dt_declare_xattr_set(const struct lu_env *env,
-				      struct dt_object *dt,
-				      const struct lu_buf *buf,
-				      const char *name, int fl,
-				      struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_declare_xattr_set);
-	return dt->do_ops->do_declare_xattr_set(env, dt, buf, name, fl, th);
-}
-
-static inline int dt_xattr_set(const struct lu_env *env,
-			      struct dt_object *dt, const struct lu_buf *buf,
-			      const char *name, int fl, struct thandle *th,
-			      struct lustre_capa *capa)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_xattr_set);
-	return dt->do_ops->do_xattr_set(env, dt, buf, name, fl, th, capa);
-}
-
-static inline int dt_xattr_get(const struct lu_env *env,
-			      struct dt_object *dt, struct lu_buf *buf,
-			      const char *name, struct lustre_capa *capa)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_xattr_get);
-	return dt->do_ops->do_xattr_get(env, dt, buf, name, capa);
-}
-
-static inline int dt_xattr_list(const struct lu_env *env,
-			       struct dt_object *dt, struct lu_buf *buf,
-			       struct lustre_capa *capa)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_ops);
-	LASSERT(dt->do_ops->do_xattr_list);
-	return dt->do_ops->do_xattr_list(env, dt, buf, capa);
-}
-
-static inline int dt_declare_delete(const struct lu_env *env,
-				    struct dt_object *dt,
-				    const struct dt_key *key,
-				    struct thandle *th)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_index_ops);
-	LASSERT(dt->do_index_ops->dio_declare_delete);
-	return dt->do_index_ops->dio_declare_delete(env, dt, key, th);
-}
-
-static inline int dt_delete(const struct lu_env *env,
-			    struct dt_object *dt,
-			    const struct dt_key *key,
-			    struct thandle *th,
-			    struct lustre_capa *capa)
-{
-	LASSERT(dt);
-	LASSERT(dt->do_index_ops);
-	LASSERT(dt->do_index_ops->dio_delete);
-	return dt->do_index_ops->dio_delete(env, dt, key, th, capa);
-}
-
-static inline int dt_commit_async(const struct lu_env *env,
-				  struct dt_device *dev)
-{
-	LASSERT(dev);
-	LASSERT(dev->dd_ops);
-	LASSERT(dev->dd_ops->dt_commit_async);
-	return dev->dd_ops->dt_commit_async(env, dev);
-}
-
-static inline int dt_init_capa_ctxt(const struct lu_env *env,
-				    struct dt_device *dev,
-				    int mode, unsigned long timeout,
-				    __u32 alg, struct lustre_capa_key *keys)
-{
-	LASSERT(dev);
-	LASSERT(dev->dd_ops);
-	LASSERT(dev->dd_ops->dt_init_capa_ctxt);
-	return dev->dd_ops->dt_init_capa_ctxt(env, dev, mode,
-					      timeout, alg, keys);
-}
-
-static inline int dt_lookup(const struct lu_env *env,
-			    struct dt_object *dt,
-			    struct dt_rec *rec,
-			    const struct dt_key *key,
-			    struct lustre_capa *capa)
-{
-	int ret;
-
-	LASSERT(dt);
-	LASSERT(dt->do_index_ops);
-	LASSERT(dt->do_index_ops->dio_lookup);
-
-	ret = dt->do_index_ops->dio_lookup(env, dt, rec, key, capa);
-	if (ret > 0)
-		ret = 0;
-	else if (ret == 0)
-		ret = -ENOENT;
-	return ret;
-}
-
-#define LU221_BAD_TIME (0x80000000U + 24 * 3600)
-
-struct dt_find_hint {
-	struct lu_fid	*dfh_fid;
-	struct dt_device     *dfh_dt;
-	struct dt_object     *dfh_o;
-};
-
-struct dt_thread_info {
-	char		     dti_buf[DT_MAX_PATH];
-	struct dt_find_hint      dti_dfh;
-	struct lu_attr	   dti_attr;
-	struct lu_fid	    dti_fid;
-	struct dt_object_format  dti_dof;
-	struct lustre_mdt_attrs  dti_lma;
-	struct lu_buf	    dti_lb;
-	loff_t		   dti_off;
-};
-
-extern struct lu_context_key dt_key;
-
-static inline struct dt_thread_info *dt_info(const struct lu_env *env)
-{
-	struct dt_thread_info *dti;
-
-	dti = lu_context_key_get(&env->le_ctx, &dt_key);
-	LASSERT(dti);
-	return dti;
-}
-
-int dt_global_init(void);
-void dt_global_fini(void);
-
-int lprocfs_dt_rd_blksize(char *page, char **start, off_t off,
-			  int count, int *eof, void *data);
-int lprocfs_dt_rd_kbytestotal(char *page, char **start, off_t off,
-			      int count, int *eof, void *data);
-int lprocfs_dt_rd_kbytesfree(char *page, char **start, off_t off,
-			     int count, int *eof, void *data);
-int lprocfs_dt_rd_kbytesavail(char *page, char **start, off_t off,
-			      int count, int *eof, void *data);
-int lprocfs_dt_rd_filestotal(char *page, char **start, off_t off,
-			     int count, int *eof, void *data);
-int lprocfs_dt_rd_filesfree(char *page, char **start, off_t off,
-			    int count, int *eof, void *data);
-
-#endif /* __LUSTRE_DT_OBJECT_H */
diff --git a/drivers/staging/lustre/lustre/include/interval_tree.h b/drivers/staging/lustre/lustre/include/interval_tree.h
deleted file mode 100644
index bf9027d5f773..000000000000
--- a/drivers/staging/lustre/lustre/include/interval_tree.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/interval_tree.h
- *
- * Author: Huang Wei <huangwei@clusterfs.com>
- * Author: Jay Xiong <jinshan.xiong@sun.com>
- */
-
-#ifndef _INTERVAL_H__
-#define _INTERVAL_H__
-
-#include "../../include/linux/libcfs/libcfs.h"	/* LASSERT. */
-
-struct interval_node {
-	struct interval_node   *in_left;
-	struct interval_node   *in_right;
-	struct interval_node   *in_parent;
-	unsigned		in_color:1,
-				in_intree:1, /** set if the node is in tree */
-				in_res1:30;
-	__u8		    in_res2[4];  /** tags, 8-bytes aligned */
-	__u64		   in_max_high;
-	struct interval_node_extent {
-		__u64 start;
-		__u64 end;
-	} in_extent;
-};
-
-enum interval_iter {
-	INTERVAL_ITER_CONT = 1,
-	INTERVAL_ITER_STOP = 2
-};
-
-static inline int interval_is_intree(struct interval_node *node)
-{
-	return node->in_intree == 1;
-}
-
-static inline __u64 interval_low(struct interval_node *node)
-{
-	return node->in_extent.start;
-}
-
-static inline __u64 interval_high(struct interval_node *node)
-{
-	return node->in_extent.end;
-}
-
-static inline void interval_set(struct interval_node *node,
-				__u64 start, __u64 end)
-{
-	LASSERT(start <= end);
-	node->in_extent.start = start;
-	node->in_extent.end = end;
-	node->in_max_high = end;
-}
-
-/* Rules to write an interval callback.
- *  - the callback returns INTERVAL_ITER_STOP when it thinks the iteration
- *    should be stopped. It will then cause the iteration function to return
- *    immediately with return value INTERVAL_ITER_STOP.
- *  - callbacks for interval_iterate and interval_iterate_reverse: Every
- *    nodes in the tree will be set to @node before the callback being called
- *  - callback for interval_search: Only overlapped node will be set to @node
- *    before the callback being called.
- */
-typedef enum interval_iter (*interval_callback_t)(struct interval_node *node,
-						  void *args);
-
-struct interval_node *interval_insert(struct interval_node *node,
-				      struct interval_node **root);
-void interval_erase(struct interval_node *node, struct interval_node **root);
-
-/* Search the extents in the tree and call @func for each overlapped
- * extents. */
-enum interval_iter interval_search(struct interval_node *root,
-				   struct interval_node_extent *ex,
-				   interval_callback_t func, void *data);
-
-/* Iterate every node in the tree - by reverse order or regular order. */
-enum interval_iter interval_iterate(struct interval_node *root,
-				    interval_callback_t func, void *data);
-enum interval_iter interval_iterate_reverse(struct interval_node *root,
-				    interval_callback_t func, void *data);
-
-void interval_expand(struct interval_node *root,
-		     struct interval_node_extent *ext,
-		     struct interval_node_extent *limiter);
-int interval_is_overlapped(struct interval_node *root,
-			   struct interval_node_extent *ex);
-struct interval_node *interval_find(struct interval_node *root,
-				    struct interval_node_extent *ex);
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h
deleted file mode 100644
index c5c3a8d9eaa4..000000000000
--- a/drivers/staging/lustre/lustre/include/lclient.h
+++ /dev/null
@@ -1,433 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Definitions shared between vvp and liblustre, and other clients in the
- * future.
- *
- *   Author: Oleg Drokin <oleg.drokin@sun.com>
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#ifndef LCLIENT_H
-#define LCLIENT_H
-
-blkcnt_t dirty_cnt(struct inode *inode);
-
-int cl_glimpse_size0(struct inode *inode, int agl);
-int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io,
-		    struct inode *inode, struct cl_object *clob, int agl);
-
-static inline int cl_glimpse_size(struct inode *inode)
-{
-	return cl_glimpse_size0(inode, 0);
-}
-
-static inline int cl_agl(struct inode *inode)
-{
-	return cl_glimpse_size0(inode, 1);
-}
-
-/**
- * Locking policy for setattr.
- */
-enum ccc_setattr_lock_type {
-	/** Locking is done by server */
-	SETATTR_NOLOCK,
-	/** Extent lock is enqueued */
-	SETATTR_EXTENT_LOCK,
-	/** Existing local extent lock is used */
-	SETATTR_MATCH_LOCK
-};
-
-
-/**
- * IO state private to vvp or slp layers.
- */
-struct ccc_io {
-	/** super class */
-	struct cl_io_slice     cui_cl;
-	struct cl_io_lock_link cui_link;
-	/**
-	 * I/O vector information to or from which read/write is going.
-	 */
-	struct iov_iter *cui_iter;
-	/**
-	 * Total size for the left IO.
-	 */
-	size_t cui_tot_count;
-
-	union {
-		struct {
-			enum ccc_setattr_lock_type cui_local_lock;
-		} setattr;
-	} u;
-	/**
-	 * True iff io is processing glimpse right now.
-	 */
-	int		  cui_glimpse;
-	/**
-	 * Layout version when this IO is initialized
-	 */
-	__u32		cui_layout_gen;
-	/**
-	 * File descriptor against which IO is done.
-	 */
-	struct ll_file_data *cui_fd;
-	struct kiocb *cui_iocb;
-};
-
-/**
- * True, if \a io is a normal io, False for splice_{read,write}.
- * must be implemented in arch specific code.
- */
-int cl_is_normalio(const struct lu_env *env, const struct cl_io *io);
-
-extern struct lu_context_key ccc_key;
-extern struct lu_context_key ccc_session_key;
-
-struct ccc_thread_info {
-	struct cl_lock_descr cti_descr;
-	struct cl_io	 cti_io;
-	struct cl_attr       cti_attr;
-};
-
-static inline struct ccc_thread_info *ccc_env_info(const struct lu_env *env)
-{
-	struct ccc_thread_info      *info;
-
-	info = lu_context_key_get(&env->le_ctx, &ccc_key);
-	LASSERT(info != NULL);
-	return info;
-}
-
-static inline struct cl_attr *ccc_env_thread_attr(const struct lu_env *env)
-{
-	struct cl_attr *attr = &ccc_env_info(env)->cti_attr;
-
-	memset(attr, 0, sizeof(*attr));
-	return attr;
-}
-
-static inline struct cl_io *ccc_env_thread_io(const struct lu_env *env)
-{
-	struct cl_io *io = &ccc_env_info(env)->cti_io;
-
-	memset(io, 0, sizeof(*io));
-	return io;
-}
-
-struct ccc_session {
-	struct ccc_io cs_ios;
-};
-
-static inline struct ccc_session *ccc_env_session(const struct lu_env *env)
-{
-	struct ccc_session *ses;
-
-	ses = lu_context_key_get(env->le_ses, &ccc_session_key);
-	LASSERT(ses != NULL);
-	return ses;
-}
-
-static inline struct ccc_io *ccc_env_io(const struct lu_env *env)
-{
-	return &ccc_env_session(env)->cs_ios;
-}
-
-/**
- * ccc-private object state.
- */
-struct ccc_object {
-	struct cl_object_header cob_header;
-	struct cl_object	cob_cl;
-	struct inode	   *cob_inode;
-
-	/**
-	 * A list of dirty pages pending IO in the cache. Used by
-	 * SOM. Protected by ll_inode_info::lli_lock.
-	 *
-	 * \see ccc_page::cpg_pending_linkage
-	 */
-	struct list_head	     cob_pending_list;
-
-	/**
-	 * Access this counter is protected by inode->i_sem. Now that
-	 * the lifetime of transient pages must be covered by inode sem,
-	 * we don't need to hold any lock..
-	 */
-	int		     cob_transient_pages;
-	/**
-	 * Number of outstanding mmaps on this file.
-	 *
-	 * \see ll_vm_open(), ll_vm_close().
-	 */
-	atomic_t	    cob_mmap_cnt;
-
-	/**
-	 * various flags
-	 * cob_discard_page_warned
-	 *     if pages belonging to this object are discarded when a client
-	 * is evicted, some debug info will be printed, this flag will be set
-	 * during processing the first discarded page, then avoid flooding
-	 * debug message for lots of discarded pages.
-	 *
-	 * \see ll_dirty_page_discard_warn.
-	 */
-	unsigned int		cob_discard_page_warned:1;
-};
-
-/**
- * ccc-private page state.
- */
-struct ccc_page {
-	struct cl_page_slice cpg_cl;
-	int		  cpg_defer_uptodate;
-	int		  cpg_ra_used;
-	int		  cpg_write_queued;
-	/**
-	 * Non-empty iff this page is already counted in
-	 * ccc_object::cob_pending_list. Protected by
-	 * ccc_object::cob_pending_guard. This list is only used as a flag,
-	 * that is, never iterated through, only checked for list_empty(), but
-	 * having a list is useful for debugging.
-	 */
-	struct list_head	   cpg_pending_linkage;
-	/** VM page */
-	struct page	  *cpg_page;
-};
-
-static inline struct ccc_page *cl2ccc_page(const struct cl_page_slice *slice)
-{
-	return container_of(slice, struct ccc_page, cpg_cl);
-}
-
-struct cl_page    *ccc_vmpage_page_transient(struct page *vmpage);
-
-struct ccc_device {
-	struct cl_device    cdv_cl;
-	struct super_block *cdv_sb;
-	struct cl_device   *cdv_next;
-};
-
-struct ccc_lock {
-	struct cl_lock_slice clk_cl;
-};
-
-struct ccc_req {
-	struct cl_req_slice  crq_cl;
-};
-
-void *ccc_key_init	(const struct lu_context *ctx,
-			   struct lu_context_key *key);
-void  ccc_key_fini	(const struct lu_context *ctx,
-			   struct lu_context_key *key, void *data);
-void *ccc_session_key_init(const struct lu_context *ctx,
-			   struct lu_context_key *key);
-void  ccc_session_key_fini(const struct lu_context *ctx,
-			   struct lu_context_key *key, void *data);
-
-int	      ccc_device_init  (const struct lu_env *env,
-				   struct lu_device *d,
-				   const char *name, struct lu_device *next);
-struct lu_device *ccc_device_fini (const struct lu_env *env,
-				   struct lu_device *d);
-struct lu_device *ccc_device_alloc(const struct lu_env *env,
-				   struct lu_device_type *t,
-				   struct lustre_cfg *cfg,
-				   const struct lu_device_operations *luops,
-				   const struct cl_device_operations *clops);
-struct lu_device *ccc_device_free (const struct lu_env *env,
-				   struct lu_device *d);
-struct lu_object *ccc_object_alloc(const struct lu_env *env,
-				   const struct lu_object_header *hdr,
-				   struct lu_device *dev,
-				   const struct cl_object_operations *clops,
-				   const struct lu_object_operations *luops);
-
-int ccc_req_init(const struct lu_env *env, struct cl_device *dev,
-		 struct cl_req *req);
-void ccc_umount(const struct lu_env *env, struct cl_device *dev);
-int ccc_global_init(struct lu_device_type *device_type);
-void ccc_global_fini(struct lu_device_type *device_type);
-int ccc_object_init0(const struct lu_env *env, struct ccc_object *vob,
-		     const struct cl_object_conf *conf);
-int ccc_object_init(const struct lu_env *env, struct lu_object *obj,
-		    const struct lu_object_conf *conf);
-void ccc_object_free(const struct lu_env *env, struct lu_object *obj);
-int ccc_lock_init(const struct lu_env *env, struct cl_object *obj,
-		  struct cl_lock *lock, const struct cl_io *io,
-		  const struct cl_lock_operations *lkops);
-int ccc_attr_set(const struct lu_env *env, struct cl_object *obj,
-		 const struct cl_attr *attr, unsigned valid);
-int ccc_object_glimpse(const struct lu_env *env,
-		       const struct cl_object *obj, struct ost_lvb *lvb);
-int ccc_conf_set(const struct lu_env *env, struct cl_object *obj,
-		 const struct cl_object_conf *conf);
-struct page *ccc_page_vmpage(const struct lu_env *env,
-			    const struct cl_page_slice *slice);
-int ccc_page_is_under_lock(const struct lu_env *env,
-			   const struct cl_page_slice *slice, struct cl_io *io);
-int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice);
-void ccc_transient_page_verify(const struct cl_page *page);
-int  ccc_transient_page_own(const struct lu_env *env,
-			    const struct cl_page_slice *slice,
-			    struct cl_io *io, int nonblock);
-void ccc_transient_page_assume(const struct lu_env *env,
-			       const struct cl_page_slice *slice,
-			       struct cl_io *io);
-void ccc_transient_page_unassume(const struct lu_env *env,
-				 const struct cl_page_slice *slice,
-				 struct cl_io *io);
-void ccc_transient_page_disown(const struct lu_env *env,
-			       const struct cl_page_slice *slice,
-			       struct cl_io *io);
-void ccc_transient_page_discard(const struct lu_env *env,
-				const struct cl_page_slice *slice,
-				struct cl_io *io);
-int ccc_transient_page_prep(const struct lu_env *env,
-			    const struct cl_page_slice *slice,
-			    struct cl_io *io);
-void ccc_lock_delete(const struct lu_env *env,
-		     const struct cl_lock_slice *slice);
-void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice);
-int ccc_lock_enqueue(const struct lu_env *env,
-		     const struct cl_lock_slice *slice,
-		     struct cl_io *io, __u32 enqflags);
-int ccc_lock_use(const struct lu_env *env, const struct cl_lock_slice *slice);
-int ccc_lock_unuse(const struct lu_env *env, const struct cl_lock_slice *slice);
-int ccc_lock_wait(const struct lu_env *env, const struct cl_lock_slice *slice);
-int ccc_lock_fits_into(const struct lu_env *env,
-		       const struct cl_lock_slice *slice,
-		       const struct cl_lock_descr *need,
-		       const struct cl_io *io);
-void ccc_lock_state(const struct lu_env *env,
-		    const struct cl_lock_slice *slice,
-		    enum cl_lock_state state);
-
-void ccc_io_fini(const struct lu_env *env, const struct cl_io_slice *ios);
-int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io,
-			  __u32 enqflags, enum cl_lock_mode mode,
-			  pgoff_t start, pgoff_t end);
-int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io,
-		    __u32 enqflags, enum cl_lock_mode mode,
-		    loff_t start, loff_t end);
-void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios);
-void ccc_io_advance(const struct lu_env *env, const struct cl_io_slice *ios,
-		    size_t nob);
-void ccc_io_update_iov(const struct lu_env *env, struct ccc_io *cio,
-		       struct cl_io *io);
-int ccc_prep_size(const struct lu_env *env, struct cl_object *obj,
-		  struct cl_io *io, loff_t start, size_t count, int *exceed);
-void ccc_req_completion(const struct lu_env *env,
-			const struct cl_req_slice *slice, int ioret);
-void ccc_req_attr_set(const struct lu_env *env,
-		      const struct cl_req_slice *slice,
-		      const struct cl_object *obj,
-		      struct cl_req_attr *oa, u64 flags);
-
-struct lu_device   *ccc2lu_dev      (struct ccc_device *vdv);
-struct lu_object   *ccc2lu	  (struct ccc_object *vob);
-struct ccc_device  *lu2ccc_dev      (const struct lu_device *d);
-struct ccc_device  *cl2ccc_dev      (const struct cl_device *d);
-struct ccc_object  *lu2ccc	  (const struct lu_object *obj);
-struct ccc_object  *cl2ccc	  (const struct cl_object *obj);
-struct ccc_lock    *cl2ccc_lock     (const struct cl_lock_slice *slice);
-struct ccc_io      *cl2ccc_io       (const struct lu_env *env,
-				     const struct cl_io_slice *slice);
-struct ccc_req     *cl2ccc_req      (const struct cl_req_slice *slice);
-struct page	 *cl2vm_page      (const struct cl_page_slice *slice);
-struct inode       *ccc_object_inode(const struct cl_object *obj);
-struct ccc_object  *cl_inode2ccc    (struct inode *inode);
-
-int cl_setattr_ost(struct inode *inode, const struct iattr *attr,
-		   struct obd_capa *capa);
-
-struct cl_page *ccc_vmpage_page_transient(struct page *vmpage);
-int ccc_object_invariant(const struct cl_object *obj);
-int cl_file_inode_init(struct inode *inode, struct lustre_md *md);
-void cl_inode_fini(struct inode *inode);
-int cl_local_size(struct inode *inode);
-
-__u16 ll_dirent_type_get(struct lu_dirent *ent);
-__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32);
-__u32 cl_fid_build_gen(const struct lu_fid *fid);
-
-# define CLOBINVRNT(env, clob, expr)					\
-	((void)sizeof(env), (void)sizeof(clob), (void)sizeof(!!(expr)))
-
-int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp);
-int cl_ocd_update(struct obd_device *host,
-		  struct obd_device *watched,
-		  enum obd_notify_event ev, void *owner, void *data);
-
-struct ccc_grouplock {
-	struct lu_env   *cg_env;
-	struct cl_io    *cg_io;
-	struct cl_lock  *cg_lock;
-	unsigned long    cg_gid;
-};
-
-int  cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock,
-		      struct ccc_grouplock *cg);
-void cl_put_grouplock(struct ccc_grouplock *cg);
-
-/**
- * New interfaces to get and put lov_stripe_md from lov layer. This violates
- * layering because lov_stripe_md is supposed to be a private data in lov.
- *
- * NB: If you find you have to use these interfaces for your new code, please
- * think about it again. These interfaces may be removed in the future for
- * better layering. */
-struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj);
-void lov_lsm_put(struct cl_object *clobj, struct lov_stripe_md *lsm);
-int lov_read_and_clear_async_rc(struct cl_object *clob);
-
-struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode);
-void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm);
-
-/**
- * Data structure managing a client's cached clean pages. An LRU of
- * pages is maintained, along with other statistics.
- */
-struct cl_client_cache {
-	atomic_t	ccc_users;    /* # of users (OSCs) of this data */
-	struct list_head	ccc_lru;      /* LRU list of cached clean pages */
-	spinlock_t	ccc_lru_lock; /* lock for list */
-	atomic_t	ccc_lru_left; /* # of LRU entries available */
-	unsigned long	ccc_lru_max;  /* Max # of LRU entries possible */
-	unsigned int	ccc_lru_shrinkers; /* # of threads reclaiming */
-};
-
-#endif /*LCLIENT_H */
diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
deleted file mode 100644
index 6b14406b2920..000000000000
--- a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LINUX_COMPAT25_H
-#define _LINUX_COMPAT25_H
-
-#include <linux/fs_struct.h>
-#include <linux/namei.h>
-
-#include "lustre_patchless_compat.h"
-
-/*
- * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
- * ATTR_* attributes (see bug 13828)
- */
-#define ATTR_BLOCKS    (1 << 27)
-
-#define current_ngroups current_cred()->group_info->ngroups
-#define current_groups current_cred()->group_info->small_block
-
-/*
- * OBD need working random driver, thus all our
- * initialization routines must be called after device
- * driver initialization
- */
-#ifndef MODULE
-#undef module_init
-#define module_init(a)     late_initcall(a)
-#endif
-
-
-#define LTIME_S(time)		   (time.tv_sec)
-
-#ifndef QUOTA_OK
-# define QUOTA_OK 0
-#endif
-#ifndef NO_QUOTA
-# define NO_QUOTA (-EDQUOT)
-#endif
-
-#if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
-# define ext2_set_bit	     __test_and_set_bit_le
-# define ext2_clear_bit	   __test_and_clear_bit_le
-# define ext2_test_bit	    test_bit_le
-# define ext2_find_first_zero_bit find_first_zero_bit_le
-# define ext2_find_next_zero_bit  find_next_zero_bit_le
-#endif
-
-#endif /* _COMPAT25_H */
diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_lite.h b/drivers/staging/lustre/lustre/include/linux/lustre_lite.h
deleted file mode 100644
index 45651caf42cc..000000000000
--- a/drivers/staging/lustre/lustre/include/linux/lustre_lite.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LINUX_LL_H
-#define _LINUX_LL_H
-
-#ifndef _LL_H
-#error Do not #include this file directly. #include <lustre_lite.h> instead
-#endif
-
-
-#include <asm/statfs.h>
-
-#include <linux/fs.h>
-#include <linux/dcache.h>
-
-#include "../obd_class.h"
-#include "../lustre_net.h"
-#include "../lustre_ha.h"
-
-#include <linux/rbtree.h>
-#include "../../include/linux/lustre_compat25.h"
-#include <linux/pagemap.h>
-
-/* lprocfs.c */
-enum {
-	 LPROC_LL_DIRTY_HITS = 0,
-	 LPROC_LL_DIRTY_MISSES,
-	 LPROC_LL_READ_BYTES,
-	 LPROC_LL_WRITE_BYTES,
-	 LPROC_LL_BRW_READ,
-	 LPROC_LL_BRW_WRITE,
-	 LPROC_LL_OSC_READ,
-	 LPROC_LL_OSC_WRITE,
-	 LPROC_LL_IOCTL,
-	 LPROC_LL_OPEN,
-	 LPROC_LL_RELEASE,
-	 LPROC_LL_MAP,
-	 LPROC_LL_LLSEEK,
-	 LPROC_LL_FSYNC,
-	 LPROC_LL_READDIR,
-	 LPROC_LL_SETATTR,
-	 LPROC_LL_TRUNC,
-	 LPROC_LL_FLOCK,
-	 LPROC_LL_GETATTR,
-	 LPROC_LL_CREATE,
-	 LPROC_LL_LINK,
-	 LPROC_LL_UNLINK,
-	 LPROC_LL_SYMLINK,
-	 LPROC_LL_MKDIR,
-	 LPROC_LL_RMDIR,
-	 LPROC_LL_MKNOD,
-	 LPROC_LL_RENAME,
-	 LPROC_LL_STAFS,
-	 LPROC_LL_ALLOC_INODE,
-	 LPROC_LL_SETXATTR,
-	 LPROC_LL_GETXATTR,
-	 LPROC_LL_GETXATTR_HITS,
-	 LPROC_LL_LISTXATTR,
-	 LPROC_LL_REMOVEXATTR,
-	 LPROC_LL_INODE_PERM,
-	 LPROC_LL_FILE_OPCODES
-};
-
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_patchless_compat.h b/drivers/staging/lustre/lustre/include/linux/lustre_patchless_compat.h
deleted file mode 100644
index ebe8d68ed813..000000000000
--- a/drivers/staging/lustre/lustre/include/linux/lustre_patchless_compat.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef LUSTRE_PATCHLESS_COMPAT_H
-#define LUSTRE_PATCHLESS_COMPAT_H
-
-#include <linux/fs.h>
-
-#include <linux/list.h>
-#include <linux/mm.h>
-#include <linux/hash.h>
-
-
-#define ll_delete_from_page_cache(page) delete_from_page_cache(page)
-
-static inline void
-truncate_complete_page(struct address_space *mapping, struct page *page)
-{
-	if (page->mapping != mapping)
-		return;
-
-	if (PagePrivate(page))
-		page->mapping->a_ops->invalidatepage(page, 0, PAGE_CACHE_SIZE);
-
-	cancel_dirty_page(page);
-	ClearPageMappedToDisk(page);
-	ll_delete_from_page_cache(page);
-}
-
-#ifndef ATTR_CTIME_SET
-/*
- * set ATTR_CTIME_SET to a high value to avoid any risk of collision with other
- * ATTR_* attributes (see bug 13828)
- */
-#define ATTR_CTIME_SET (1 << 28)
-#endif
-
-#endif /* LUSTRE_PATCHLESS_COMPAT_H */
diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_user.h b/drivers/staging/lustre/lustre/include/linux/lustre_user.h
deleted file mode 100644
index 9cc2849f3f85..000000000000
--- a/drivers/staging/lustre/lustre/include/linux/lustre_user.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/linux/lustre_user.h
- *
- * Lustre public user-space interface definitions.
- */
-
-#ifndef _LINUX_LUSTRE_USER_H
-#define _LINUX_LUSTRE_USER_H
-
-# include <linux/quota.h>
-
-/*
- * asm-x86_64/processor.h on some SLES 9 distros seems to use
- * kernel-only typedefs.  fortunately skipping it altogether is ok
- * (for now).
- */
-#define __ASM_X86_64_PROCESSOR_H
-
-#include <linux/string.h>
-
-/*
- * We need to always use 64bit version because the structure
- * is shared across entire cluster where 32bit and 64bit machines
- * are co-existing.
- */
-#if __BITS_PER_LONG != 64 || defined(__ARCH_WANT_STAT64)
-typedef struct stat64   lstat_t;
-#define lstat_f	 lstat64
-#else
-typedef struct stat     lstat_t;
-#define lstat_f	 lstat
-#endif
-
-#define HAVE_LOV_USER_MDS_DATA
-
-#endif /* _LUSTRE_USER_H */
diff --git a/drivers/staging/lustre/lustre/include/linux/obd.h b/drivers/staging/lustre/lustre/include/linux/obd.h
deleted file mode 100644
index 2817e88e014a..000000000000
--- a/drivers/staging/lustre/lustre/include/linux/obd.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LINUX_OBD_H
-#define __LINUX_OBD_H
-
-#ifndef __OBD_H
-#error Do not #include this file directly. #include <obd.h> instead
-#endif
-
-#include "../obd_support.h"
-
-#include <linux/fs.h>
-#include <linux/list.h>
-#include <linux/sched.h>  /* for struct task_struct, for current.h */
-#include <linux/mount.h>
-
-#include "../lustre_intent.h"
-
-struct ll_iattr {
-	struct iattr	iattr;
-	unsigned int	ia_attr_flags;
-};
-
-#define CLIENT_OBD_LIST_LOCK_DEBUG 1
-
-typedef struct {
-	spinlock_t		lock;
-
-	unsigned long       time;
-	struct task_struct *task;
-	const char	 *func;
-	int		 line;
-} client_obd_lock_t;
-
-static inline void __client_obd_list_lock(client_obd_lock_t *lock,
-					  const char *func, int line)
-{
-	unsigned long cur = jiffies;
-	while (1) {
-		if (spin_trylock(&lock->lock)) {
-			LASSERT(lock->task == NULL);
-			lock->task = current;
-			lock->func = func;
-			lock->line = line;
-			lock->time = jiffies;
-			break;
-		}
-
-		if (time_before(cur + 5 * HZ, jiffies) &&
-		    time_before(lock->time + 5 * HZ, jiffies)) {
-			struct task_struct *task = lock->task;
-
-			if (task == NULL)
-				continue;
-
-			LCONSOLE_WARN("%s:%d: lock %p was acquired by <%s:%d:%s:%d> for %lu seconds.\n",
-				      current->comm, current->pid,
-				      lock, task->comm, task->pid,
-				      lock->func, lock->line,
-				      (jiffies - lock->time) / HZ);
-			LCONSOLE_WARN("====== for current process =====\n");
-			dump_stack();
-			LCONSOLE_WARN("====== end =======\n");
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(1000 * HZ);
-		}
-		cpu_relax();
-	}
-}
-
-#define client_obd_list_lock(lock) \
-	__client_obd_list_lock(lock, __func__, __LINE__)
-
-static inline void client_obd_list_unlock(client_obd_lock_t *lock)
-{
-	LASSERT(lock->task != NULL);
-	lock->task = NULL;
-	lock->time = jiffies;
-	spin_unlock(&lock->lock);
-}
-
-
-static inline void client_obd_list_lock_init(client_obd_lock_t *lock)
-{
-	spin_lock_init(&lock->lock);
-}
-
-static inline void client_obd_list_lock_done(client_obd_lock_t *lock)
-{}
-
-#endif /* __LINUX_OBD_H */
diff --git a/drivers/staging/lustre/lustre/include/lprocfs_status.h b/drivers/staging/lustre/lustre/include/lprocfs_status.h
deleted file mode 100644
index fd3c4df319c2..000000000000
--- a/drivers/staging/lustre/lustre/include/lprocfs_status.h
+++ /dev/null
@@ -1,808 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lprocfs_status.h
- *
- * Top level header file for LProc SNMP
- *
- * Author: Hariharan Thantry thantry@users.sourceforge.net
- */
-#ifndef _LPROCFS_SNMP_H
-#define _LPROCFS_SNMP_H
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-
-#include "lustre/lustre_idl.h"
-
-struct lprocfs_vars {
-	const char		*name;
-	struct file_operations	*fops;
-	void			*data;
-	/**
-	 * /proc file mode.
-	 */
-	umode_t			proc_mode;
-};
-
-struct lprocfs_static_vars {
-	struct lprocfs_vars *obd_vars;
-	struct attribute_group *sysfs_vars;
-};
-
-/* if we find more consumers this could be generalized */
-#define OBD_HIST_MAX 32
-struct obd_histogram {
-	spinlock_t	oh_lock;
-	unsigned long	oh_buckets[OBD_HIST_MAX];
-};
-
-enum {
-	BRW_R_PAGES = 0,
-	BRW_W_PAGES,
-	BRW_R_RPC_HIST,
-	BRW_W_RPC_HIST,
-	BRW_R_IO_TIME,
-	BRW_W_IO_TIME,
-	BRW_R_DISCONT_PAGES,
-	BRW_W_DISCONT_PAGES,
-	BRW_R_DISCONT_BLOCKS,
-	BRW_W_DISCONT_BLOCKS,
-	BRW_R_DISK_IOSIZE,
-	BRW_W_DISK_IOSIZE,
-	BRW_R_DIO_FRAGS,
-	BRW_W_DIO_FRAGS,
-	BRW_LAST,
-};
-
-struct brw_stats {
-	struct obd_histogram hist[BRW_LAST];
-};
-
-enum {
-	RENAME_SAMEDIR_SIZE = 0,
-	RENAME_CROSSDIR_SRC_SIZE,
-	RENAME_CROSSDIR_TGT_SIZE,
-	RENAME_LAST,
-};
-
-struct rename_stats {
-	struct obd_histogram hist[RENAME_LAST];
-};
-
-/* An lprocfs counter can be configured using the enum bit masks below.
- *
- * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already
- * protects this counter from concurrent updates. If not specified,
- * lprocfs an internal per-counter lock variable. External locks are
- * not used to protect counter increments, but are used to protect
- * counter readout and resets.
- *
- * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples,
- * (i.e. counter can be incremented by more than "1"). When specified,
- * the counter maintains min, max and sum in addition to a simple
- * invocation count. This allows averages to be be computed.
- * If not specified, the counter is an increment-by-1 counter.
- * min, max, sum, etc. are not maintained.
- *
- * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of
- * squares (for multi-valued counter samples only). This allows
- * external computation of standard deviation, but involves a 64-bit
- * multiply per counter increment.
- */
-
-enum {
-	LPROCFS_CNTR_EXTERNALLOCK = 0x0001,
-	LPROCFS_CNTR_AVGMINMAX    = 0x0002,
-	LPROCFS_CNTR_STDDEV       = 0x0004,
-
-	/* counter data type */
-	LPROCFS_TYPE_REGS	 = 0x0100,
-	LPROCFS_TYPE_BYTES	= 0x0200,
-	LPROCFS_TYPE_PAGES	= 0x0400,
-	LPROCFS_TYPE_CYCLE	= 0x0800,
-};
-
-#define LC_MIN_INIT ((~(__u64)0) >> 1)
-
-struct lprocfs_counter_header {
-	unsigned int		lc_config;
-	const char		*lc_name;   /* must be static */
-	const char		*lc_units;  /* must be static */
-};
-
-struct lprocfs_counter {
-	__s64	lc_count;
-	__s64	lc_min;
-	__s64	lc_max;
-	__s64	lc_sumsquare;
-	/*
-	 * Every counter has lc_array_sum[0], while lc_array_sum[1] is only
-	 * for irq context counter, i.e. stats with
-	 * LPROCFS_STATS_FLAG_IRQ_SAFE flag, its counter need
-	 * lc_array_sum[1]
-	 */
-	__s64	lc_array_sum[1];
-};
-#define lc_sum		lc_array_sum[0]
-#define lc_sum_irq	lc_array_sum[1]
-
-struct lprocfs_percpu {
-#ifndef __GNUC__
-	__s64			pad;
-#endif
-	struct lprocfs_counter lp_cntr[0];
-};
-
-#define LPROCFS_GET_NUM_CPU 0x0001
-#define LPROCFS_GET_SMP_ID  0x0002
-
-enum lprocfs_stats_flags {
-	LPROCFS_STATS_FLAG_NONE     = 0x0000, /* per cpu counter */
-	LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu
-					       * area and need locking */
-	LPROCFS_STATS_FLAG_IRQ_SAFE = 0x0002, /* alloc need irq safe */
-};
-
-enum lprocfs_fields_flags {
-	LPROCFS_FIELDS_FLAGS_CONFIG     = 0x0001,
-	LPROCFS_FIELDS_FLAGS_SUM	= 0x0002,
-	LPROCFS_FIELDS_FLAGS_MIN	= 0x0003,
-	LPROCFS_FIELDS_FLAGS_MAX	= 0x0004,
-	LPROCFS_FIELDS_FLAGS_AVG	= 0x0005,
-	LPROCFS_FIELDS_FLAGS_SUMSQUARE  = 0x0006,
-	LPROCFS_FIELDS_FLAGS_COUNT      = 0x0007,
-};
-
-struct lprocfs_stats {
-	/* # of counters */
-	unsigned short			ls_num;
-	/* 1 + the biggest cpu # whose ls_percpu slot has been allocated */
-	unsigned short			ls_biggest_alloc_num;
-	enum lprocfs_stats_flags	ls_flags;
-	/* Lock used when there are no percpu stats areas; For percpu stats,
-	 * it is used to protect ls_biggest_alloc_num change */
-	spinlock_t			ls_lock;
-
-	/* has ls_num of counter headers */
-	struct lprocfs_counter_header	*ls_cnt_header;
-	struct lprocfs_percpu		*ls_percpu[0];
-};
-
-#define OPC_RANGE(seg) (seg ## _LAST_OPC - seg ## _FIRST_OPC)
-
-/* Pack all opcodes down into a single monotonically increasing index */
-static inline int opcode_offset(__u32 opc) {
-	if (opc < OST_LAST_OPC) {
-		 /* OST opcode */
-		return (opc - OST_FIRST_OPC);
-	} else if (opc < MDS_LAST_OPC) {
-		/* MDS opcode */
-		return (opc - MDS_FIRST_OPC +
-			OPC_RANGE(OST));
-	} else if (opc < LDLM_LAST_OPC) {
-		/* LDLM Opcode */
-		return (opc - LDLM_FIRST_OPC +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < MGS_LAST_OPC) {
-		/* MGS Opcode */
-		return (opc - MGS_FIRST_OPC +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < OBD_LAST_OPC) {
-		/* OBD Ping */
-		return (opc - OBD_FIRST_OPC +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < LLOG_LAST_OPC) {
-		/* LLOG Opcode */
-		return (opc - LLOG_FIRST_OPC +
-			OPC_RANGE(OBD) +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < QUOTA_LAST_OPC) {
-		/* LQUOTA Opcode */
-		return (opc - QUOTA_FIRST_OPC +
-			OPC_RANGE(LLOG) +
-			OPC_RANGE(OBD) +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < SEQ_LAST_OPC) {
-		/* SEQ opcode */
-		return (opc - SEQ_FIRST_OPC +
-			OPC_RANGE(QUOTA) +
-			OPC_RANGE(LLOG) +
-			OPC_RANGE(OBD) +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < SEC_LAST_OPC) {
-		/* SEC opcode */
-		return (opc - SEC_FIRST_OPC +
-			OPC_RANGE(SEQ) +
-			OPC_RANGE(QUOTA) +
-			OPC_RANGE(LLOG) +
-			OPC_RANGE(OBD) +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < FLD_LAST_OPC) {
-		/* FLD opcode */
-		 return (opc - FLD_FIRST_OPC +
-			OPC_RANGE(SEC) +
-			OPC_RANGE(SEQ) +
-			OPC_RANGE(QUOTA) +
-			OPC_RANGE(LLOG) +
-			OPC_RANGE(OBD) +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else if (opc < UPDATE_LAST_OPC) {
-		/* update opcode */
-		return (opc - UPDATE_FIRST_OPC +
-			OPC_RANGE(FLD) +
-			OPC_RANGE(SEC) +
-			OPC_RANGE(SEQ) +
-			OPC_RANGE(QUOTA) +
-			OPC_RANGE(LLOG) +
-			OPC_RANGE(OBD) +
-			OPC_RANGE(MGS) +
-			OPC_RANGE(LDLM) +
-			OPC_RANGE(MDS) +
-			OPC_RANGE(OST));
-	} else {
-		/* Unknown Opcode */
-		return -1;
-	}
-}
-
-
-#define LUSTRE_MAX_OPCODES (OPC_RANGE(OST)  + \
-			    OPC_RANGE(MDS)  + \
-			    OPC_RANGE(LDLM) + \
-			    OPC_RANGE(MGS)  + \
-			    OPC_RANGE(OBD)  + \
-			    OPC_RANGE(LLOG) + \
-			    OPC_RANGE(SEC)  + \
-			    OPC_RANGE(SEQ)  + \
-			    OPC_RANGE(SEC)  + \
-			    OPC_RANGE(FLD)  + \
-			    OPC_RANGE(UPDATE))
-
-#define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR)  + \
-			    OPC_RANGE(EXTRA))
-
-enum {
-	PTLRPC_REQWAIT_CNTR = 0,
-	PTLRPC_REQQDEPTH_CNTR,
-	PTLRPC_REQACTIVE_CNTR,
-	PTLRPC_TIMEOUT,
-	PTLRPC_REQBUF_AVAIL_CNTR,
-	PTLRPC_LAST_CNTR
-};
-
-#define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR
-
-enum {
-	LDLM_GLIMPSE_ENQUEUE = 0,
-	LDLM_PLAIN_ENQUEUE,
-	LDLM_EXTENT_ENQUEUE,
-	LDLM_FLOCK_ENQUEUE,
-	LDLM_IBITS_ENQUEUE,
-	MDS_REINT_SETATTR,
-	MDS_REINT_CREATE,
-	MDS_REINT_LINK,
-	MDS_REINT_UNLINK,
-	MDS_REINT_RENAME,
-	MDS_REINT_OPEN,
-	MDS_REINT_SETXATTR,
-	BRW_READ_BYTES,
-	BRW_WRITE_BYTES,
-	EXTRA_LAST_OPC
-};
-
-#define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE
-/* class_obd.c */
-extern struct dentry *debugfs_lustre_root;
-extern struct kobject *lustre_kobj;
-
-struct obd_device;
-struct obd_histogram;
-
-/* Days / hours / mins / seconds format */
-struct dhms {
-	int d, h, m, s;
-};
-static inline void s2dhms(struct dhms *ts, time_t secs)
-{
-	ts->d = secs / 86400;
-	secs = secs % 86400;
-	ts->h = secs / 3600;
-	secs = secs % 3600;
-	ts->m = secs / 60;
-	ts->s = secs % 60;
-}
-#define DHMS_FMT "%dd%dh%02dm%02ds"
-#define DHMS_VARS(x) (x)->d, (x)->h, (x)->m, (x)->s
-
-#define JOBSTATS_JOBID_VAR_MAX_LEN	20
-#define JOBSTATS_DISABLE		"disable"
-#define JOBSTATS_PROCNAME_UID		"procname_uid"
-#define JOBSTATS_NODELOCAL		"nodelocal"
-
-int lprocfs_write_frac_helper(const char __user *buffer,
-			      unsigned long count, int *val, int mult);
-int lprocfs_read_frac_helper(char *buffer, unsigned long count,
-			     long val, int mult);
-int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid);
-/*
- * \return value
- *      < 0     : on error (only possible for opc as LPROCFS_GET_SMP_ID)
- */
-static inline int lprocfs_stats_lock(struct lprocfs_stats *stats, int opc,
-				     unsigned long *flags)
-{
-	int		rc = 0;
-
-	switch (opc) {
-	default:
-		LBUG();
-
-	case LPROCFS_GET_SMP_ID:
-		if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
-				spin_lock_irqsave(&stats->ls_lock, *flags);
-			else
-				spin_lock(&stats->ls_lock);
-			return 0;
-		} else {
-			unsigned int cpuid = get_cpu();
-
-			if (unlikely(stats->ls_percpu[cpuid] == NULL)) {
-				rc = lprocfs_stats_alloc_one(stats, cpuid);
-				if (rc < 0) {
-					put_cpu();
-					return rc;
-				}
-			}
-			return cpuid;
-		}
-
-	case LPROCFS_GET_NUM_CPU:
-		if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
-				spin_lock_irqsave(&stats->ls_lock, *flags);
-			else
-				spin_lock(&stats->ls_lock);
-			return 1;
-		}
-		return stats->ls_biggest_alloc_num;
-	}
-}
-
-static inline void lprocfs_stats_unlock(struct lprocfs_stats *stats, int opc,
-					unsigned long *flags)
-{
-	switch (opc) {
-	default:
-		LBUG();
-
-	case LPROCFS_GET_SMP_ID:
-		if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) {
-				spin_unlock_irqrestore(&stats->ls_lock,
-							   *flags);
-			} else {
-				spin_unlock(&stats->ls_lock);
-			}
-		} else {
-			put_cpu();
-		}
-		return;
-
-	case LPROCFS_GET_NUM_CPU:
-		if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) {
-				spin_unlock_irqrestore(&stats->ls_lock,
-							   *flags);
-			} else {
-				spin_unlock(&stats->ls_lock);
-			}
-		}
-		return;
-	}
-}
-
-static inline unsigned int
-lprocfs_stats_counter_size(struct lprocfs_stats *stats)
-{
-	unsigned int percpusize;
-
-	percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]);
-
-	/* irq safe stats need lc_array_sum[1] */
-	if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
-		percpusize += stats->ls_num * sizeof(__s64);
-
-	if ((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0)
-		percpusize = L1_CACHE_ALIGN(percpusize);
-
-	return percpusize;
-}
-
-static inline struct lprocfs_counter *
-lprocfs_stats_counter_get(struct lprocfs_stats *stats, unsigned int cpuid,
-			  int index)
-{
-	struct lprocfs_counter *cntr;
-
-	cntr = &stats->ls_percpu[cpuid]->lp_cntr[index];
-
-	if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
-		cntr = (void *)cntr + index * sizeof(__s64);
-
-	return cntr;
-}
-
-/* Two optimized LPROCFS counter increment functions are provided:
- *     lprocfs_counter_incr(cntr, value) - optimized for by-one counters
- *     lprocfs_counter_add(cntr) - use for multi-valued counters
- * Counter data layout allows config flag, counter lock and the
- * count itself to reside within a single cache line.
- */
-
-void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount);
-void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount);
-
-#define lprocfs_counter_incr(stats, idx) \
-	lprocfs_counter_add(stats, idx, 1)
-#define lprocfs_counter_decr(stats, idx) \
-	lprocfs_counter_sub(stats, idx, 1)
-
-__s64 lprocfs_read_helper(struct lprocfs_counter *lc,
-			  struct lprocfs_counter_header *header,
-			  enum lprocfs_stats_flags flags,
-			  enum lprocfs_fields_flags field);
-static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats,
-					    int idx,
-					    enum lprocfs_fields_flags field)
-{
-	int	      i;
-	unsigned int  num_cpu;
-	unsigned long flags	= 0;
-	__u64	      ret	= 0;
-
-	LASSERT(stats != NULL);
-
-	num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
-	for (i = 0; i < num_cpu; i++) {
-		if (stats->ls_percpu[i] == NULL)
-			continue;
-		ret += lprocfs_read_helper(
-				lprocfs_stats_counter_get(stats, i, idx),
-				&stats->ls_cnt_header[idx], stats->ls_flags,
-				field);
-	}
-	lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
-	return ret;
-}
-
-extern struct lprocfs_stats *
-lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags);
-void lprocfs_clear_stats(struct lprocfs_stats *stats);
-void lprocfs_free_stats(struct lprocfs_stats **stats);
-void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats);
-void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats);
-void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats);
-int lprocfs_alloc_obd_stats(struct obd_device *obddev,
-			    unsigned int num_private_stats);
-int lprocfs_alloc_md_stats(struct obd_device *obddev,
-			   unsigned int num_private_stats);
-void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
-			  unsigned conf, const char *name, const char *units);
-void lprocfs_free_obd_stats(struct obd_device *obddev);
-void lprocfs_free_md_stats(struct obd_device *obddev);
-struct obd_export;
-int lprocfs_exp_cleanup(struct obd_export *exp);
-struct dentry *ldebugfs_add_simple(struct dentry *root,
-				   char *name,
-				   void *data,
-				   struct file_operations *fops);
-struct dentry *
-ldebugfs_add_symlink(const char *name, struct dentry *parent,
-		     const char *format, ...);
-
-int ldebugfs_register_stats(struct dentry *parent,
-			    const char *name,
-			    struct lprocfs_stats *stats);
-
-/* lprocfs_status.c */
-int ldebugfs_add_vars(struct dentry *parent,
-		      struct lprocfs_vars *var,
-		      void *data);
-
-struct dentry *ldebugfs_register(const char *name,
-				 struct dentry *parent,
-				 struct lprocfs_vars *list,
-				 void *data);
-
-void ldebugfs_remove(struct dentry **entryp);
-
-int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list,
-		      struct attribute_group *attrs);
-int lprocfs_obd_cleanup(struct obd_device *obd);
-
-int ldebugfs_seq_create(struct dentry *parent,
-			const char *name,
-			umode_t mode,
-			const struct file_operations *seq_fops,
-			void *data);
-int ldebugfs_obd_seq_create(struct obd_device *dev,
-			    const char *name,
-			    umode_t mode,
-			    const struct file_operations *seq_fops,
-			    void *data);
-
-/* Generic callbacks */
-
-int lprocfs_rd_u64(struct seq_file *m, void *data);
-int lprocfs_rd_atomic(struct seq_file *m, void *data);
-int lprocfs_wr_atomic(struct file *file, const char __user *buffer,
-		      unsigned long count, void *data);
-int lprocfs_rd_uint(struct seq_file *m, void *data);
-int lprocfs_wr_uint(struct file *file, const char __user *buffer,
-		    unsigned long count, void *data);
-int lprocfs_rd_name(struct seq_file *m, void *data);
-int lprocfs_rd_server_uuid(struct seq_file *m, void *data);
-int lprocfs_rd_conn_uuid(struct seq_file *m, void *data);
-int lprocfs_rd_import(struct seq_file *m, void *data);
-int lprocfs_rd_state(struct seq_file *m, void *data);
-int lprocfs_rd_connect_flags(struct seq_file *m, void *data);
-
-struct adaptive_timeout;
-int lprocfs_at_hist_helper(struct seq_file *m, struct adaptive_timeout *at);
-int lprocfs_rd_timeouts(struct seq_file *m, void *data);
-int lprocfs_wr_timeouts(struct file *file, const char __user *buffer,
-			unsigned long count, void *data);
-int lprocfs_wr_evict_client(struct file *file, const char __user *buffer,
-			    size_t count, loff_t *off);
-int lprocfs_wr_ping(struct file *file, const char __user *buffer,
-		    size_t count, loff_t *off);
-int lprocfs_wr_import(struct file *file, const char __user *buffer,
-		      size_t count, loff_t *off);
-int lprocfs_rd_pinger_recov(struct seq_file *m, void *n);
-int lprocfs_wr_pinger_recov(struct file *file, const char __user *buffer,
-			    size_t count, loff_t *off);
-
-/* Statfs helpers */
-
-int lprocfs_write_helper(const char __user *buffer, unsigned long count,
-			 int *val);
-int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult);
-int lprocfs_write_u64_helper(const char __user *buffer,
-			     unsigned long count, __u64 *val);
-int lprocfs_write_frac_u64_helper(const char *buffer,
-				  unsigned long count,
-				  __u64 *val, int mult);
-char *lprocfs_find_named_value(const char *buffer, const char *name,
-			       size_t *count);
-void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
-void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value);
-void lprocfs_oh_clear(struct obd_histogram *oh);
-unsigned long lprocfs_oh_sum(struct obd_histogram *oh);
-
-void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
-			   struct lprocfs_counter *cnt);
-
-int lprocfs_single_release(struct inode *, struct file *);
-int lprocfs_seq_release(struct inode *, struct file *);
-
-/* You must use these macros when you want to refer to
- * the import in a client obd_device for a lprocfs entry */
-#define LPROCFS_CLIMP_CHECK(obd) do {	   \
-	typecheck(struct obd_device *, obd);    \
-	down_read(&(obd)->u.cli.cl_sem);    \
-	if ((obd)->u.cli.cl_import == NULL) {   \
-	     up_read(&(obd)->u.cli.cl_sem); \
-	     return -ENODEV;		    \
-	}				       \
-} while (0)
-#define LPROCFS_CLIMP_EXIT(obd)		 \
-	up_read(&(obd)->u.cli.cl_sem)
-
-
-/* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only
-  proc entries; otherwise, you will define name##_seq_write function also for
-  a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally,
-  call ldebugfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); */
-#define __LPROC_SEQ_FOPS(name, custom_seq_write)			\
-static int name##_single_open(struct inode *inode, struct file *file)	\
-{									\
-	return single_open(file, name##_seq_show, inode->i_private);	\
-}									\
-static struct file_operations name##_fops = {				\
-	.owner   = THIS_MODULE,					    \
-	.open    = name##_single_open,				     \
-	.read    = seq_read,					       \
-	.write   = custom_seq_write,				       \
-	.llseek  = seq_lseek,					      \
-	.release = lprocfs_single_release,				 \
-}
-
-#define LPROC_SEQ_FOPS_RO(name)	 __LPROC_SEQ_FOPS(name, NULL)
-#define LPROC_SEQ_FOPS(name)	    __LPROC_SEQ_FOPS(name, name##_seq_write)
-
-#define LPROC_SEQ_FOPS_RO_TYPE(name, type)				\
-	static int name##_##type##_seq_show(struct seq_file *m, void *v)\
-	{								\
-		return lprocfs_rd_##type(m, m->private);		\
-	}								\
-	LPROC_SEQ_FOPS_RO(name##_##type)
-
-#define LPROC_SEQ_FOPS_RW_TYPE(name, type)				\
-	static int name##_##type##_seq_show(struct seq_file *m, void *v)\
-	{								\
-		return lprocfs_rd_##type(m, m->private);		\
-	}								\
-	static ssize_t name##_##type##_seq_write(struct file *file,	\
-			const char __user *buffer, size_t count,	\
-						loff_t *off)		\
-	{								\
-		struct seq_file *seq = file->private_data;		\
-		return lprocfs_wr_##type(file, buffer,			\
-					 count, seq->private);		\
-	}								\
-	LPROC_SEQ_FOPS(name##_##type)
-
-#define LPROC_SEQ_FOPS_WR_ONLY(name, type)				\
-	static ssize_t name##_##type##_write(struct file *file,		\
-			const char __user *buffer, size_t count,	\
-						loff_t *off)		\
-	{								\
-		return lprocfs_wr_##type(file, buffer, count, off);	\
-	}								\
-	static int name##_##type##_open(struct inode *inode, struct file *file) \
-	{								\
-		return single_open(file, NULL, inode->i_private);	\
-	}								\
-	static struct file_operations name##_##type##_fops = {	\
-		.open	= name##_##type##_open,				\
-		.write	= name##_##type##_write,			\
-		.release = lprocfs_single_release,			\
-	}
-
-struct lustre_attr {
-	struct attribute attr;
-	ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
-			char *buf);
-	ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
-			 const char *buf, size_t len);
-};
-
-#define LUSTRE_ATTR(name, mode, show, store) \
-static struct lustre_attr lustre_attr_##name = __ATTR(name, mode, show, store)
-
-#define LUSTRE_RO_ATTR(name) LUSTRE_ATTR(name, 0444, name##_show, NULL)
-#define LUSTRE_RW_ATTR(name) LUSTRE_ATTR(name, 0644, name##_show, name##_store)
-
-ssize_t lustre_attr_show(struct kobject *kobj, struct attribute *attr,
-			 char *buf);
-ssize_t lustre_attr_store(struct kobject *kobj, struct attribute *attr,
-			  const char *buf, size_t len);
-
-extern const struct sysfs_ops lustre_sysfs_ops;
-
-/* lproc_ptlrpc.c */
-struct ptlrpc_request;
-void target_print_req(void *seq_file, struct ptlrpc_request *req);
-
-/* lproc_status.c */
-int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file *m, void *data);
-int lprocfs_obd_wr_max_pages_per_rpc(struct file *file, const char *buffer,
-				     size_t count, loff_t *off);
-
-/* all quota proc functions */
-int lprocfs_quota_rd_bunit(char *page, char **start,
-			   loff_t off, int count,
-			   int *eof, void *data);
-int lprocfs_quota_wr_bunit(struct file *file, const char *buffer,
-			   unsigned long count, void *data);
-int lprocfs_quota_rd_btune(char *page, char **start,
-			   loff_t off, int count,
-			   int *eof, void *data);
-int lprocfs_quota_wr_btune(struct file *file, const char *buffer,
-			   unsigned long count, void *data);
-int lprocfs_quota_rd_iunit(char *page, char **start,
-			   loff_t off, int count,
-			   int *eof, void *data);
-int lprocfs_quota_wr_iunit(struct file *file, const char *buffer,
-			   unsigned long count, void *data);
-int lprocfs_quota_rd_itune(char *page, char **start,
-			   loff_t off, int count,
-			   int *eof, void *data);
-int lprocfs_quota_wr_itune(struct file *file, const char *buffer,
-			   unsigned long count, void *data);
-int lprocfs_quota_rd_type(char *page, char **start, loff_t off, int count,
-			  int *eof, void *data);
-int lprocfs_quota_wr_type(struct file *file, const char *buffer,
-			  unsigned long count, void *data);
-int lprocfs_quota_rd_switch_seconds(char *page, char **start, loff_t off,
-				    int count, int *eof, void *data);
-int lprocfs_quota_wr_switch_seconds(struct file *file,
-				    const char *buffer,
-				    unsigned long count, void *data);
-int lprocfs_quota_rd_sync_blk(char *page, char **start, loff_t off,
-			      int count, int *eof, void *data);
-int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
-			      unsigned long count, void *data);
-int lprocfs_quota_rd_switch_qs(char *page, char **start, loff_t off,
-			       int count, int *eof, void *data);
-int lprocfs_quota_wr_switch_qs(struct file *file,
-			       const char *buffer, unsigned long count,
-			       void *data);
-int lprocfs_quota_rd_boundary_factor(char *page, char **start, loff_t off,
-				     int count, int *eof, void *data);
-int lprocfs_quota_wr_boundary_factor(struct file *file,
-				     const char *buffer, unsigned long count,
-				     void *data);
-int lprocfs_quota_rd_least_bunit(char *page, char **start, loff_t off,
-				 int count, int *eof, void *data);
-int lprocfs_quota_wr_least_bunit(struct file *file,
-				 const char *buffer, unsigned long count,
-				 void *data);
-int lprocfs_quota_rd_least_iunit(char *page, char **start, loff_t off,
-				 int count, int *eof, void *data);
-int lprocfs_quota_wr_least_iunit(struct file *file,
-				 const char *buffer, unsigned long count,
-				 void *data);
-int lprocfs_quota_rd_qs_factor(char *page, char **start, loff_t off,
-			       int count, int *eof, void *data);
-int lprocfs_quota_wr_qs_factor(struct file *file,
-			       const char *buffer, unsigned long count,
-			       void *data);
-#endif /* LPROCFS_SNMP_H */
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
deleted file mode 100644
index e1d72a7a5c2d..000000000000
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ /dev/null
@@ -1,1338 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LUSTRE_LU_OBJECT_H
-#define __LUSTRE_LU_OBJECT_H
-
-#include <stdarg.h>
-#include "../../include/linux/libcfs/libcfs.h"
-#include "lustre/lustre_idl.h"
-#include "lu_ref.h"
-
-struct seq_file;
-struct lustre_cfg;
-struct lprocfs_stats;
-
-/** \defgroup lu lu
- * lu_* data-types represent server-side entities shared by data and meta-data
- * stacks.
- *
- * Design goals:
- *
- * -# support for layering.
- *
- *     Server side object is split into layers, one per device in the
- *     corresponding device stack. Individual layer is represented by struct
- *     lu_object. Compound layered object --- by struct lu_object_header. Most
- *     interface functions take lu_object as an argument and operate on the
- *     whole compound object. This decision was made due to the following
- *     reasons:
- *
- *	- it's envisaged that lu_object will be used much more often than
- *	lu_object_header;
- *
- *	- we want lower (non-top) layers to be able to initiate operations
- *	on the whole object.
- *
- *     Generic code supports layering more complex than simple stacking, e.g.,
- *     it is possible that at some layer object "spawns" multiple sub-objects
- *     on the lower layer.
- *
- * -# fid-based identification.
- *
- *     Compound object is uniquely identified by its fid. Objects are indexed
- *     by their fids (hash table is used for index).
- *
- * -# caching and life-cycle management.
- *
- *     Object's life-time is controlled by reference counting. When reference
- *     count drops to 0, object is returned to cache. Cached objects still
- *     retain their identity (i.e., fid), and can be recovered from cache.
- *
- *     Objects are kept in the global LRU list, and lu_site_purge() function
- *     can be used to reclaim given number of unused objects from the tail of
- *     the LRU.
- *
- * -# avoiding recursion.
- *
- *     Generic code tries to replace recursion through layers by iterations
- *     where possible. Additionally to the end of reducing stack consumption,
- *     data, when practically possible, are allocated through lu_context_key
- *     interface rather than on stack.
- * @{
- */
-
-struct lu_site;
-struct lu_object;
-struct lu_device;
-struct lu_object_header;
-struct lu_context;
-struct lu_env;
-
-/**
- * Operations common for data and meta-data devices.
- */
-struct lu_device_operations {
-	/**
-	 * Allocate object for the given device (without lower-layer
-	 * parts). This is called by lu_object_operations::loo_object_init()
-	 * from the parent layer, and should setup at least lu_object::lo_dev
-	 * and lu_object::lo_ops fields of resulting lu_object.
-	 *
-	 * Object creation protocol.
-	 *
-	 * Due to design goal of avoiding recursion, object creation (see
-	 * lu_object_alloc()) is somewhat involved:
-	 *
-	 *  - first, lu_device_operations::ldo_object_alloc() method of the
-	 *  top-level device in the stack is called. It should allocate top
-	 *  level object (including lu_object_header), but without any
-	 *  lower-layer sub-object(s).
-	 *
-	 *  - then lu_object_alloc() sets fid in the header of newly created
-	 *  object.
-	 *
-	 *  - then lu_object_operations::loo_object_init() is called. It has
-	 *  to allocate lower-layer object(s). To do this,
-	 *  lu_object_operations::loo_object_init() calls ldo_object_alloc()
-	 *  of the lower-layer device(s).
-	 *
-	 *  - for all new objects allocated by
-	 *  lu_object_operations::loo_object_init() (and inserted into object
-	 *  stack), lu_object_operations::loo_object_init() is called again
-	 *  repeatedly, until no new objects are created.
-	 *
-	 * \post ergo(!IS_ERR(result), result->lo_dev == d &&
-	 *			     result->lo_ops != NULL);
-	 */
-	struct lu_object *(*ldo_object_alloc)(const struct lu_env *env,
-					      const struct lu_object_header *h,
-					      struct lu_device *d);
-	/**
-	 * process config specific for device.
-	 */
-	int (*ldo_process_config)(const struct lu_env *env,
-				  struct lu_device *, struct lustre_cfg *);
-	int (*ldo_recovery_complete)(const struct lu_env *,
-				     struct lu_device *);
-
-	/**
-	 * initialize local objects for device. this method called after layer has
-	 * been initialized (after LCFG_SETUP stage) and before it starts serving
-	 * user requests.
-	 */
-
-	int (*ldo_prepare)(const struct lu_env *,
-			   struct lu_device *parent,
-			   struct lu_device *dev);
-
-};
-
-/**
- * For lu_object_conf flags
- */
-typedef enum {
-	/* This is a new object to be allocated, or the file
-	 * corresponding to the object does not exists. */
-	LOC_F_NEW	= 0x00000001,
-} loc_flags_t;
-
-/**
- * Object configuration, describing particulars of object being created. On
- * server this is not used, as server objects are full identified by fid. On
- * client configuration contains struct lustre_md.
- */
-struct lu_object_conf {
-	/**
-	 * Some hints for obj find and alloc.
-	 */
-	loc_flags_t     loc_flags;
-};
-
-/**
- * Type of "printer" function used by lu_object_operations::loo_object_print()
- * method.
- *
- * Printer function is needed to provide some flexibility in (semi-)debugging
- * output: possible implementations: printk, CDEBUG, sysfs/seq_file
- */
-typedef int (*lu_printer_t)(const struct lu_env *env,
-			    void *cookie, const char *format, ...)
-	__printf(3, 4);
-
-/**
- * Operations specific for particular lu_object.
- */
-struct lu_object_operations {
-
-	/**
-	 * Allocate lower-layer parts of the object by calling
-	 * lu_device_operations::ldo_object_alloc() of the corresponding
-	 * underlying device.
-	 *
-	 * This method is called once for each object inserted into object
-	 * stack. It's responsibility of this method to insert lower-layer
-	 * object(s) it create into appropriate places of object stack.
-	 */
-	int (*loo_object_init)(const struct lu_env *env,
-			       struct lu_object *o,
-			       const struct lu_object_conf *conf);
-	/**
-	 * Called (in top-to-bottom order) during object allocation after all
-	 * layers were allocated and initialized. Can be used to perform
-	 * initialization depending on lower layers.
-	 */
-	int (*loo_object_start)(const struct lu_env *env,
-				struct lu_object *o);
-	/**
-	 * Called before lu_object_operations::loo_object_free() to signal
-	 * that object is being destroyed. Dual to
-	 * lu_object_operations::loo_object_init().
-	 */
-	void (*loo_object_delete)(const struct lu_env *env,
-				  struct lu_object *o);
-	/**
-	 * Dual to lu_device_operations::ldo_object_alloc(). Called when
-	 * object is removed from memory.
-	 */
-	void (*loo_object_free)(const struct lu_env *env,
-				struct lu_object *o);
-	/**
-	 * Called when last active reference to the object is released (and
-	 * object returns to the cache). This method is optional.
-	 */
-	void (*loo_object_release)(const struct lu_env *env,
-				   struct lu_object *o);
-	/**
-	 * Optional debugging helper. Print given object.
-	 */
-	int (*loo_object_print)(const struct lu_env *env, void *cookie,
-				lu_printer_t p, const struct lu_object *o);
-	/**
-	 * Optional debugging method. Returns true iff method is internally
-	 * consistent.
-	 */
-	int (*loo_object_invariant)(const struct lu_object *o);
-};
-
-/**
- * Type of lu_device.
- */
-struct lu_device_type;
-
-/**
- * Device: a layer in the server side abstraction stacking.
- */
-struct lu_device {
-	/**
-	 * reference count. This is incremented, in particular, on each object
-	 * created at this layer.
-	 *
-	 * \todo XXX which means that atomic_t is probably too small.
-	 */
-	atomic_t		       ld_ref;
-	/**
-	 * Pointer to device type. Never modified once set.
-	 */
-	struct lu_device_type       *ld_type;
-	/**
-	 * Operation vector for this device.
-	 */
-	const struct lu_device_operations *ld_ops;
-	/**
-	 * Stack this device belongs to.
-	 */
-	struct lu_site		    *ld_site;
-
-	/** \todo XXX: temporary back pointer into obd. */
-	struct obd_device		 *ld_obd;
-	/**
-	 * A list of references to this object, for debugging.
-	 */
-	struct lu_ref		      ld_reference;
-	/**
-	 * Link the device to the site.
-	 **/
-	struct list_head			 ld_linkage;
-};
-
-struct lu_device_type_operations;
-
-/**
- * Tag bits for device type. They are used to distinguish certain groups of
- * device types.
- */
-enum lu_device_tag {
-	/** this is meta-data device */
-	LU_DEVICE_MD = (1 << 0),
-	/** this is data device */
-	LU_DEVICE_DT = (1 << 1),
-	/** data device in the client stack */
-	LU_DEVICE_CL = (1 << 2)
-};
-
-/**
- * Type of device.
- */
-struct lu_device_type {
-	/**
-	 * Tag bits. Taken from enum lu_device_tag. Never modified once set.
-	 */
-	__u32				   ldt_tags;
-	/**
-	 * Name of this class. Unique system-wide. Never modified once set.
-	 */
-	char				   *ldt_name;
-	/**
-	 * Operations for this type.
-	 */
-	const struct lu_device_type_operations *ldt_ops;
-	/**
-	 * \todo XXX: temporary pointer to associated obd_type.
-	 */
-	struct obd_type			*ldt_obd_type;
-	/**
-	 * \todo XXX: temporary: context tags used by obd_*() calls.
-	 */
-	__u32				   ldt_ctx_tags;
-	/**
-	 * Number of existing device type instances.
-	 */
-	unsigned				ldt_device_nr;
-	/**
-	 * Linkage into a global list of all device types.
-	 *
-	 * \see lu_device_types.
-	 */
-	struct list_head			      ldt_linkage;
-};
-
-/**
- * Operations on a device type.
- */
-struct lu_device_type_operations {
-	/**
-	 * Allocate new device.
-	 */
-	struct lu_device *(*ldto_device_alloc)(const struct lu_env *env,
-					       struct lu_device_type *t,
-					       struct lustre_cfg *lcfg);
-	/**
-	 * Free device. Dual to
-	 * lu_device_type_operations::ldto_device_alloc(). Returns pointer to
-	 * the next device in the stack.
-	 */
-	struct lu_device *(*ldto_device_free)(const struct lu_env *,
-					      struct lu_device *);
-
-	/**
-	 * Initialize the devices after allocation
-	 */
-	int  (*ldto_device_init)(const struct lu_env *env,
-				 struct lu_device *, const char *,
-				 struct lu_device *);
-	/**
-	 * Finalize device. Dual to
-	 * lu_device_type_operations::ldto_device_init(). Returns pointer to
-	 * the next device in the stack.
-	 */
-	struct lu_device *(*ldto_device_fini)(const struct lu_env *env,
-					      struct lu_device *);
-	/**
-	 * Initialize device type. This is called on module load.
-	 */
-	int  (*ldto_init)(struct lu_device_type *t);
-	/**
-	 * Finalize device type. Dual to
-	 * lu_device_type_operations::ldto_init(). Called on module unload.
-	 */
-	void (*ldto_fini)(struct lu_device_type *t);
-	/**
-	 * Called when the first device is created.
-	 */
-	void (*ldto_start)(struct lu_device_type *t);
-	/**
-	 * Called when number of devices drops to 0.
-	 */
-	void (*ldto_stop)(struct lu_device_type *t);
-};
-
-static inline int lu_device_is_md(const struct lu_device *d)
-{
-	return ergo(d != NULL, d->ld_type->ldt_tags & LU_DEVICE_MD);
-}
-
-/**
- * Common object attributes.
- */
-struct lu_attr {
-	/** size in bytes */
-	__u64	  la_size;
-	/** modification time in seconds since Epoch */
-	s64	  la_mtime;
-	/** access time in seconds since Epoch */
-	s64	  la_atime;
-	/** change time in seconds since Epoch */
-	s64	  la_ctime;
-	/** 512-byte blocks allocated to object */
-	__u64	  la_blocks;
-	/** permission bits and file type */
-	__u32	  la_mode;
-	/** owner id */
-	__u32	  la_uid;
-	/** group id */
-	__u32	  la_gid;
-	/** object flags */
-	__u32	  la_flags;
-	/** number of persistent references to this object */
-	__u32	  la_nlink;
-	/** blk bits of the object*/
-	__u32	  la_blkbits;
-	/** blk size of the object*/
-	__u32	  la_blksize;
-	/** real device */
-	__u32	  la_rdev;
-	/**
-	 * valid bits
-	 *
-	 * \see enum la_valid
-	 */
-	__u64	  la_valid;
-};
-
-/** Bit-mask of valid attributes */
-enum la_valid {
-	LA_ATIME = 1 << 0,
-	LA_MTIME = 1 << 1,
-	LA_CTIME = 1 << 2,
-	LA_SIZE  = 1 << 3,
-	LA_MODE  = 1 << 4,
-	LA_UID   = 1 << 5,
-	LA_GID   = 1 << 6,
-	LA_BLOCKS = 1 << 7,
-	LA_TYPE   = 1 << 8,
-	LA_FLAGS  = 1 << 9,
-	LA_NLINK  = 1 << 10,
-	LA_RDEV   = 1 << 11,
-	LA_BLKSIZE = 1 << 12,
-	LA_KILL_SUID = 1 << 13,
-	LA_KILL_SGID = 1 << 14,
-};
-
-/**
- * Layer in the layered object.
- */
-struct lu_object {
-	/**
-	 * Header for this object.
-	 */
-	struct lu_object_header	   *lo_header;
-	/**
-	 * Device for this layer.
-	 */
-	struct lu_device		  *lo_dev;
-	/**
-	 * Operations for this object.
-	 */
-	const struct lu_object_operations *lo_ops;
-	/**
-	 * Linkage into list of all layers.
-	 */
-	struct list_head			 lo_linkage;
-	/**
-	 * Link to the device, for debugging.
-	 */
-	struct lu_ref_link                 lo_dev_ref;
-};
-
-enum lu_object_header_flags {
-	/**
-	 * Don't keep this object in cache. Object will be destroyed as soon
-	 * as last reference to it is released. This flag cannot be cleared
-	 * once set.
-	 */
-	LU_OBJECT_HEARD_BANSHEE = 0,
-	/**
-	 * Mark this object has already been taken out of cache.
-	 */
-	LU_OBJECT_UNHASHED = 1
-};
-
-enum lu_object_header_attr {
-	LOHA_EXISTS   = 1 << 0,
-	LOHA_REMOTE   = 1 << 1,
-	/**
-	 * UNIX file type is stored in S_IFMT bits.
-	 */
-	LOHA_FT_START = 001 << 12, /**< S_IFIFO */
-	LOHA_FT_END   = 017 << 12, /**< S_IFMT */
-};
-
-/**
- * "Compound" object, consisting of multiple layers.
- *
- * Compound object with given fid is unique with given lu_site.
- *
- * Note, that object does *not* necessary correspond to the real object in the
- * persistent storage: object is an anchor for locking and method calling, so
- * it is created for things like not-yet-existing child created by mkdir or
- * create calls. lu_object_operations::loo_exists() can be used to check
- * whether object is backed by persistent storage entity.
- */
-struct lu_object_header {
-	/**
-	 * Fid, uniquely identifying this object.
-	 */
-	struct lu_fid		loh_fid;
-	/**
-	 * Object flags from enum lu_object_header_flags. Set and checked
-	 * atomically.
-	 */
-	unsigned long	  loh_flags;
-	/**
-	 * Object reference count. Protected by lu_site::ls_guard.
-	 */
-	atomic_t	   loh_ref;
-	/**
-	 * Common object attributes, cached for efficiency. From enum
-	 * lu_object_header_attr.
-	 */
-	__u32		  loh_attr;
-	/**
-	 * Linkage into per-site hash table. Protected by lu_site::ls_guard.
-	 */
-	struct hlist_node       loh_hash;
-	/**
-	 * Linkage into per-site LRU list. Protected by lu_site::ls_guard.
-	 */
-	struct list_head	     loh_lru;
-	/**
-	 * Linkage into list of layers. Never modified once set (except lately
-	 * during object destruction). No locking is necessary.
-	 */
-	struct list_head	     loh_layers;
-	/**
-	 * A list of references to this object, for debugging.
-	 */
-	struct lu_ref	  loh_reference;
-};
-
-struct fld;
-
-struct lu_site_bkt_data {
-	/**
-	 * number of busy object on this bucket
-	 */
-	long		      lsb_busy;
-	/**
-	 * LRU list, updated on each access to object. Protected by
-	 * bucket lock of lu_site::ls_obj_hash.
-	 *
-	 * "Cold" end of LRU is lu_site::ls_lru.next. Accessed object are
-	 * moved to the lu_site::ls_lru.prev (this is due to the non-existence
-	 * of list_for_each_entry_safe_reverse()).
-	 */
-	struct list_head		lsb_lru;
-	/**
-	 * Wait-queue signaled when an object in this site is ultimately
-	 * destroyed (lu_object_free()). It is used by lu_object_find() to
-	 * wait before re-trying when object in the process of destruction is
-	 * found in the hash table.
-	 *
-	 * \see htable_lookup().
-	 */
-	wait_queue_head_t	       lsb_marche_funebre;
-};
-
-enum {
-	LU_SS_CREATED	 = 0,
-	LU_SS_CACHE_HIT,
-	LU_SS_CACHE_MISS,
-	LU_SS_CACHE_RACE,
-	LU_SS_CACHE_DEATH_RACE,
-	LU_SS_LRU_PURGED,
-	LU_SS_LAST_STAT
-};
-
-/**
- * lu_site is a "compartment" within which objects are unique, and LRU
- * discipline is maintained.
- *
- * lu_site exists so that multiple layered stacks can co-exist in the same
- * address space.
- *
- * lu_site has the same relation to lu_device as lu_object_header to
- * lu_object.
- */
-struct lu_site {
-	/**
-	 * objects hash table
-	 */
-	struct cfs_hash	       *ls_obj_hash;
-	/**
-	 * index of bucket on hash table while purging
-	 */
-	int		       ls_purge_start;
-	/**
-	 * Top-level device for this stack.
-	 */
-	struct lu_device	 *ls_top_dev;
-	/**
-	 * Bottom-level device for this stack
-	 */
-	struct lu_device	*ls_bottom_dev;
-	/**
-	 * Linkage into global list of sites.
-	 */
-	struct list_head		ls_linkage;
-	/**
-	 * List for lu device for this site, protected
-	 * by ls_ld_lock.
-	 **/
-	struct list_head		ls_ld_linkage;
-	spinlock_t		ls_ld_lock;
-
-	/**
-	 * lu_site stats
-	 */
-	struct lprocfs_stats	*ls_stats;
-	/**
-	 * XXX: a hack! fld has to find md_site via site, remove when possible
-	 */
-	struct seq_server_site	*ld_seq_site;
-};
-
-static inline struct lu_site_bkt_data *
-lu_site_bkt_from_fid(struct lu_site *site, struct lu_fid *fid)
-{
-	struct cfs_hash_bd bd;
-
-	cfs_hash_bd_get(site->ls_obj_hash, fid, &bd);
-	return cfs_hash_bd_extra_get(site->ls_obj_hash, &bd);
-}
-
-static inline struct seq_server_site *lu_site2seq(const struct lu_site *s)
-{
-	return s->ld_seq_site;
-}
-
-/** \name ctors
- * Constructors/destructors.
- * @{
- */
-
-int  lu_site_init	 (struct lu_site *s, struct lu_device *d);
-void lu_site_fini	 (struct lu_site *s);
-int  lu_site_init_finish  (struct lu_site *s);
-void lu_stack_fini	(const struct lu_env *env, struct lu_device *top);
-void lu_device_get	(struct lu_device *d);
-void lu_device_put	(struct lu_device *d);
-int  lu_device_init       (struct lu_device *d, struct lu_device_type *t);
-void lu_device_fini       (struct lu_device *d);
-int  lu_object_header_init(struct lu_object_header *h);
-void lu_object_header_fini(struct lu_object_header *h);
-int  lu_object_init       (struct lu_object *o,
-			   struct lu_object_header *h, struct lu_device *d);
-void lu_object_fini       (struct lu_object *o);
-void lu_object_add_top    (struct lu_object_header *h, struct lu_object *o);
-void lu_object_add	(struct lu_object *before, struct lu_object *o);
-
-void lu_dev_add_linkage(struct lu_site *s, struct lu_device *d);
-void lu_dev_del_linkage(struct lu_site *s, struct lu_device *d);
-
-/**
- * Helpers to initialize and finalize device types.
- */
-
-int  lu_device_type_init(struct lu_device_type *ldt);
-void lu_device_type_fini(struct lu_device_type *ldt);
-void lu_types_stop(void);
-
-/** @} ctors */
-
-/** \name caching
- * Caching and reference counting.
- * @{
- */
-
-/**
- * Acquire additional reference to the given object. This function is used to
- * attain additional reference. To acquire initial reference use
- * lu_object_find().
- */
-static inline void lu_object_get(struct lu_object *o)
-{
-	LASSERT(atomic_read(&o->lo_header->loh_ref) > 0);
-	atomic_inc(&o->lo_header->loh_ref);
-}
-
-/**
- * Return true of object will not be cached after last reference to it is
- * released.
- */
-static inline int lu_object_is_dying(const struct lu_object_header *h)
-{
-	return test_bit(LU_OBJECT_HEARD_BANSHEE, &h->loh_flags);
-}
-
-void lu_object_put(const struct lu_env *env, struct lu_object *o);
-void lu_object_put_nocache(const struct lu_env *env, struct lu_object *o);
-void lu_object_unhash(const struct lu_env *env, struct lu_object *o);
-
-int lu_site_purge(const struct lu_env *env, struct lu_site *s, int nr);
-
-void lu_site_print(const struct lu_env *env, struct lu_site *s, void *cookie,
-		   lu_printer_t printer);
-struct lu_object *lu_object_find(const struct lu_env *env,
-				 struct lu_device *dev, const struct lu_fid *f,
-				 const struct lu_object_conf *conf);
-struct lu_object *lu_object_find_at(const struct lu_env *env,
-				    struct lu_device *dev,
-				    const struct lu_fid *f,
-				    const struct lu_object_conf *conf);
-struct lu_object *lu_object_find_slice(const struct lu_env *env,
-				       struct lu_device *dev,
-				       const struct lu_fid *f,
-				       const struct lu_object_conf *conf);
-/** @} caching */
-
-/** \name helpers
- * Helpers.
- * @{
- */
-
-/**
- * First (topmost) sub-object of given compound object
- */
-static inline struct lu_object *lu_object_top(struct lu_object_header *h)
-{
-	LASSERT(!list_empty(&h->loh_layers));
-	return container_of0(h->loh_layers.next, struct lu_object, lo_linkage);
-}
-
-/**
- * Next sub-object in the layering
- */
-static inline struct lu_object *lu_object_next(const struct lu_object *o)
-{
-	return container_of0(o->lo_linkage.next, struct lu_object, lo_linkage);
-}
-
-/**
- * Pointer to the fid of this object.
- */
-static inline const struct lu_fid *lu_object_fid(const struct lu_object *o)
-{
-	return &o->lo_header->loh_fid;
-}
-
-/**
- * return device operations vector for this object
- */
-static const inline struct lu_device_operations *
-lu_object_ops(const struct lu_object *o)
-{
-	return o->lo_dev->ld_ops;
-}
-
-/**
- * Given a compound object, find its slice, corresponding to the device type
- * \a dtype.
- */
-struct lu_object *lu_object_locate(struct lu_object_header *h,
-				   const struct lu_device_type *dtype);
-
-/**
- * Printer function emitting messages through libcfs_debug_msg().
- */
-int lu_cdebug_printer(const struct lu_env *env,
-		      void *cookie, const char *format, ...);
-
-/**
- * Print object description followed by a user-supplied message.
- */
-#define LU_OBJECT_DEBUG(mask, env, object, format, ...)		   \
-do {								      \
-	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL);		  \
-									  \
-	if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) {		     \
-		lu_object_print(env, &msgdata, lu_cdebug_printer, object);\
-		CDEBUG(mask, format , ## __VA_ARGS__);		    \
-	}								 \
-} while (0)
-
-/**
- * Print short object description followed by a user-supplied message.
- */
-#define LU_OBJECT_HEADER(mask, env, object, format, ...)		\
-do {								    \
-	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL);		\
-									\
-	if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) {		   \
-		lu_object_header_print(env, &msgdata, lu_cdebug_printer,\
-				       (object)->lo_header);	    \
-		lu_cdebug_printer(env, &msgdata, "\n");		 \
-		CDEBUG(mask, format , ## __VA_ARGS__);		  \
-	}							       \
-} while (0)
-
-void lu_object_print       (const struct lu_env *env, void *cookie,
-			    lu_printer_t printer, const struct lu_object *o);
-void lu_object_header_print(const struct lu_env *env, void *cookie,
-			    lu_printer_t printer,
-			    const struct lu_object_header *hdr);
-
-/**
- * Check object consistency.
- */
-int lu_object_invariant(const struct lu_object *o);
-
-
-/**
- * Check whether object exists, no matter on local or remote storage.
- * Note: LOHA_EXISTS will be set once some one created the object,
- * and it does not needs to be committed to storage.
- */
-#define lu_object_exists(o) ((o)->lo_header->loh_attr & LOHA_EXISTS)
-
-/**
- * Check whether object on the remote storage.
- */
-#define lu_object_remote(o) unlikely((o)->lo_header->loh_attr & LOHA_REMOTE)
-
-static inline int lu_object_assert_exists(const struct lu_object *o)
-{
-	return lu_object_exists(o);
-}
-
-static inline int lu_object_assert_not_exists(const struct lu_object *o)
-{
-	return !lu_object_exists(o);
-}
-
-/**
- * Attr of this object.
- */
-static inline __u32 lu_object_attr(const struct lu_object *o)
-{
-	LASSERT(lu_object_exists(o) != 0);
-	return o->lo_header->loh_attr;
-}
-
-static inline void lu_object_ref_add(struct lu_object *o,
-				     const char *scope,
-				     const void *source)
-{
-	lu_ref_add(&o->lo_header->loh_reference, scope, source);
-}
-
-static inline void lu_object_ref_add_at(struct lu_object *o,
-					struct lu_ref_link *link,
-					const char *scope,
-					const void *source)
-{
-	lu_ref_add_at(&o->lo_header->loh_reference, link, scope, source);
-}
-
-static inline void lu_object_ref_del(struct lu_object *o,
-				     const char *scope, const void *source)
-{
-	lu_ref_del(&o->lo_header->loh_reference, scope, source);
-}
-
-static inline void lu_object_ref_del_at(struct lu_object *o,
-					struct lu_ref_link *link,
-					const char *scope, const void *source)
-{
-	lu_ref_del_at(&o->lo_header->loh_reference, link, scope, source);
-}
-
-/** input params, should be filled out by mdt */
-struct lu_rdpg {
-	/** hash */
-	__u64		   rp_hash;
-	/** count in bytes */
-	unsigned int	    rp_count;
-	/** number of pages */
-	unsigned int	    rp_npages;
-	/** requested attr */
-	__u32		   rp_attrs;
-	/** pointers to pages */
-	struct page	   **rp_pages;
-};
-
-enum lu_xattr_flags {
-	LU_XATTR_REPLACE = (1 << 0),
-	LU_XATTR_CREATE  = (1 << 1)
-};
-
-/** @} helpers */
-
-/** \name lu_context
- * @{ */
-
-/** For lu_context health-checks */
-enum lu_context_state {
-	LCS_INITIALIZED = 1,
-	LCS_ENTERED,
-	LCS_LEFT,
-	LCS_FINALIZED
-};
-
-/**
- * lu_context. Execution context for lu_object methods. Currently associated
- * with thread.
- *
- * All lu_object methods, except device and device type methods (called during
- * system initialization and shutdown) are executed "within" some
- * lu_context. This means, that pointer to some "current" lu_context is passed
- * as an argument to all methods.
- *
- * All service ptlrpc threads create lu_context as part of their
- * initialization. It is possible to create "stand-alone" context for other
- * execution environments (like system calls).
- *
- * lu_object methods mainly use lu_context through lu_context_key interface
- * that allows each layer to associate arbitrary pieces of data with each
- * context (see pthread_key_create(3) for similar interface).
- *
- * On a client, lu_context is bound to a thread, see cl_env_get().
- *
- * \see lu_context_key
- */
-struct lu_context {
-	/**
-	 * lu_context is used on the client side too. Yet we don't want to
-	 * allocate values of server-side keys for the client contexts and
-	 * vice versa.
-	 *
-	 * To achieve this, set of tags in introduced. Contexts and keys are
-	 * marked with tags. Key value are created only for context whose set
-	 * of tags has non-empty intersection with one for key. Tags are taken
-	 * from enum lu_context_tag.
-	 */
-	__u32		  lc_tags;
-	enum lu_context_state  lc_state;
-	/**
-	 * Pointer to the home service thread. NULL for other execution
-	 * contexts.
-	 */
-	struct ptlrpc_thread  *lc_thread;
-	/**
-	 * Pointer to an array with key values. Internal implementation
-	 * detail.
-	 */
-	void		 **lc_value;
-	/**
-	 * Linkage into a list of all remembered contexts. Only
-	 * `non-transient' contexts, i.e., ones created for service threads
-	 * are placed here.
-	 */
-	struct list_head	     lc_remember;
-	/**
-	 * Version counter used to skip calls to lu_context_refill() when no
-	 * keys were registered.
-	 */
-	unsigned	       lc_version;
-	/**
-	 * Debugging cookie.
-	 */
-	unsigned	       lc_cookie;
-};
-
-/**
- * lu_context_key interface. Similar to pthread_key.
- */
-
-enum lu_context_tag {
-	/**
-	 * Thread on md server
-	 */
-	LCT_MD_THREAD = 1 << 0,
-	/**
-	 * Thread on dt server
-	 */
-	LCT_DT_THREAD = 1 << 1,
-	/**
-	 * Context for transaction handle
-	 */
-	LCT_TX_HANDLE = 1 << 2,
-	/**
-	 * Thread on client
-	 */
-	LCT_CL_THREAD = 1 << 3,
-	/**
-	 * A per-request session on a server, and a per-system-call session on
-	 * a client.
-	 */
-	LCT_SESSION   = 1 << 4,
-	/**
-	 * A per-request data on OSP device
-	 */
-	LCT_OSP_THREAD = 1 << 5,
-	/**
-	 * MGS device thread
-	 */
-	LCT_MG_THREAD = 1 << 6,
-	/**
-	 * Context for local operations
-	 */
-	LCT_LOCAL = 1 << 7,
-	/**
-	 * Set when at least one of keys, having values in this context has
-	 * non-NULL lu_context_key::lct_exit() method. This is used to
-	 * optimize lu_context_exit() call.
-	 */
-	LCT_HAS_EXIT  = 1 << 28,
-	/**
-	 * Don't add references for modules creating key values in that context.
-	 * This is only for contexts used internally by lu_object framework.
-	 */
-	LCT_NOREF     = 1 << 29,
-	/**
-	 * Key is being prepared for retiring, don't create new values for it.
-	 */
-	LCT_QUIESCENT = 1 << 30,
-	/**
-	 * Context should be remembered.
-	 */
-	LCT_REMEMBER  = 1 << 31,
-	/**
-	 * Contexts usable in cache shrinker thread.
-	 */
-	LCT_SHRINKER  = LCT_MD_THREAD|LCT_DT_THREAD|LCT_CL_THREAD|LCT_NOREF
-};
-
-/**
- * Key. Represents per-context value slot.
- *
- * Keys are usually registered when module owning the key is initialized, and
- * de-registered when module is unloaded. Once key is registered, all new
- * contexts with matching tags, will get key value. "Old" contexts, already
- * initialized at the time of key registration, can be forced to get key value
- * by calling lu_context_refill().
- *
- * Every key value is counted in lu_context_key::lct_used and acquires a
- * reference on an owning module. This means, that all key values have to be
- * destroyed before module can be unloaded. This is usually achieved by
- * stopping threads started by the module, that created contexts in their
- * entry functions. Situation is complicated by the threads shared by multiple
- * modules, like ptlrpcd daemon on a client. To work around this problem,
- * contexts, created in such threads, are `remembered' (see
- * LCT_REMEMBER)---i.e., added into a global list. When module is preparing
- * for unloading it does the following:
- *
- *     - marks its keys as `quiescent' (lu_context_tag::LCT_QUIESCENT)
- *       preventing new key values from being allocated in the new contexts,
- *       and
- *
- *     - scans a list of remembered contexts, destroying values of module
- *       keys, thus releasing references to the module.
- *
- * This is done by lu_context_key_quiesce(). If module is re-activated
- * before key has been de-registered, lu_context_key_revive() call clears
- * `quiescent' marker.
- *
- * lu_context code doesn't provide any internal synchronization for these
- * activities---it's assumed that startup (including threads start-up) and
- * shutdown are serialized by some external means.
- *
- * \see lu_context
- */
-struct lu_context_key {
-	/**
-	 * Set of tags for which values of this key are to be instantiated.
-	 */
-	__u32 lct_tags;
-	/**
-	 * Value constructor. This is called when new value is created for a
-	 * context. Returns pointer to new value of error pointer.
-	 */
-	void  *(*lct_init)(const struct lu_context *ctx,
-			   struct lu_context_key *key);
-	/**
-	 * Value destructor. Called when context with previously allocated
-	 * value of this slot is destroyed. \a data is a value that was returned
-	 * by a matching call to lu_context_key::lct_init().
-	 */
-	void   (*lct_fini)(const struct lu_context *ctx,
-			   struct lu_context_key *key, void *data);
-	/**
-	 * Optional method called on lu_context_exit() for all allocated
-	 * keys. Can be used by debugging code checking that locks are
-	 * released, etc.
-	 */
-	void   (*lct_exit)(const struct lu_context *ctx,
-			   struct lu_context_key *key, void *data);
-	/**
-	 * Internal implementation detail: index within lu_context::lc_value[]
-	 * reserved for this key.
-	 */
-	int      lct_index;
-	/**
-	 * Internal implementation detail: number of values created for this
-	 * key.
-	 */
-	atomic_t lct_used;
-	/**
-	 * Internal implementation detail: module for this key.
-	 */
-	struct module *lct_owner;
-	/**
-	 * References to this key. For debugging.
-	 */
-	struct lu_ref  lct_reference;
-};
-
-#define LU_KEY_INIT(mod, type)				    \
-	static void *mod##_key_init(const struct lu_context *ctx, \
-				    struct lu_context_key *key)   \
-	{							 \
-		type *value;				      \
-								  \
-		CLASSERT(PAGE_CACHE_SIZE >= sizeof (*value));       \
-								  \
-		OBD_ALLOC_PTR(value);			     \
-		if (value == NULL)				\
-			value = ERR_PTR(-ENOMEM);		 \
-								  \
-		return value;				     \
-	}							 \
-	struct __##mod##__dummy_init {;} /* semicolon catcher */
-
-#define LU_KEY_FINI(mod, type)					      \
-	static void mod##_key_fini(const struct lu_context *ctx,	    \
-				    struct lu_context_key *key, void *data) \
-	{								   \
-		type *info = data;					  \
-									    \
-		OBD_FREE_PTR(info);					 \
-	}								   \
-	struct __##mod##__dummy_fini {;} /* semicolon catcher */
-
-#define LU_KEY_INIT_FINI(mod, type)   \
-	LU_KEY_INIT(mod, type);	\
-	LU_KEY_FINI(mod, type)
-
-#define LU_CONTEXT_KEY_DEFINE(mod, tags)		\
-	struct lu_context_key mod##_thread_key = {      \
-		.lct_tags = tags,		       \
-		.lct_init = mod##_key_init,	     \
-		.lct_fini = mod##_key_fini	      \
-	}
-
-#define LU_CONTEXT_KEY_INIT(key)			\
-do {						    \
-	(key)->lct_owner = THIS_MODULE;		 \
-} while (0)
-
-int   lu_context_key_register(struct lu_context_key *key);
-void  lu_context_key_degister(struct lu_context_key *key);
-void *lu_context_key_get     (const struct lu_context *ctx,
-			       const struct lu_context_key *key);
-void  lu_context_key_quiesce (struct lu_context_key *key);
-void  lu_context_key_revive  (struct lu_context_key *key);
-
-
-/*
- * LU_KEY_INIT_GENERIC() has to be a macro to correctly determine an
- * owning module.
- */
-
-#define LU_KEY_INIT_GENERIC(mod)					\
-	static void mod##_key_init_generic(struct lu_context_key *k, ...) \
-	{							       \
-		struct lu_context_key *key = k;			 \
-		va_list args;					   \
-									\
-		va_start(args, k);				      \
-		do {						    \
-			LU_CONTEXT_KEY_INIT(key);		       \
-			key = va_arg(args, struct lu_context_key *);    \
-		} while (key != NULL);				  \
-		va_end(args);					   \
-	}
-
-#define LU_TYPE_INIT(mod, ...)					  \
-	LU_KEY_INIT_GENERIC(mod)					\
-	static int mod##_type_init(struct lu_device_type *t)	    \
-	{							       \
-		mod##_key_init_generic(__VA_ARGS__, NULL);	      \
-		return lu_context_key_register_many(__VA_ARGS__, NULL); \
-	}							       \
-	struct __##mod##_dummy_type_init {;}
-
-#define LU_TYPE_FINI(mod, ...)					  \
-	static void mod##_type_fini(struct lu_device_type *t)	   \
-	{							       \
-		lu_context_key_degister_many(__VA_ARGS__, NULL);	\
-	}							       \
-	struct __##mod##_dummy_type_fini {;}
-
-#define LU_TYPE_START(mod, ...)				 \
-	static void mod##_type_start(struct lu_device_type *t)  \
-	{						       \
-		lu_context_key_revive_many(__VA_ARGS__, NULL);  \
-	}						       \
-	struct __##mod##_dummy_type_start {;}
-
-#define LU_TYPE_STOP(mod, ...)				  \
-	static void mod##_type_stop(struct lu_device_type *t)   \
-	{						       \
-		lu_context_key_quiesce_many(__VA_ARGS__, NULL); \
-	}						       \
-	struct __##mod##_dummy_type_stop {;}
-
-
-
-#define LU_TYPE_INIT_FINI(mod, ...)	     \
-	LU_TYPE_INIT(mod, __VA_ARGS__);	 \
-	LU_TYPE_FINI(mod, __VA_ARGS__);	 \
-	LU_TYPE_START(mod, __VA_ARGS__);	\
-	LU_TYPE_STOP(mod, __VA_ARGS__)
-
-int   lu_context_init  (struct lu_context *ctx, __u32 tags);
-void  lu_context_fini  (struct lu_context *ctx);
-void  lu_context_enter (struct lu_context *ctx);
-void  lu_context_exit  (struct lu_context *ctx);
-int   lu_context_refill(struct lu_context *ctx);
-
-/*
- * Helper functions to operate on multiple keys. These are used by the default
- * device type operations, defined by LU_TYPE_INIT_FINI().
- */
-
-int  lu_context_key_register_many(struct lu_context_key *k, ...);
-void lu_context_key_degister_many(struct lu_context_key *k, ...);
-void lu_context_key_revive_many  (struct lu_context_key *k, ...);
-void lu_context_key_quiesce_many (struct lu_context_key *k, ...);
-
-/*
- * update/clear ctx/ses tags.
- */
-void lu_context_tags_update(__u32 tags);
-void lu_context_tags_clear(__u32 tags);
-void lu_session_tags_update(__u32 tags);
-void lu_session_tags_clear(__u32 tags);
-
-/**
- * Environment.
- */
-struct lu_env {
-	/**
-	 * "Local" context, used to store data instead of stack.
-	 */
-	struct lu_context  le_ctx;
-	/**
-	 * "Session" context for per-request data.
-	 */
-	struct lu_context *le_ses;
-};
-
-int  lu_env_init  (struct lu_env *env, __u32 tags);
-void lu_env_fini  (struct lu_env *env);
-int  lu_env_refill(struct lu_env *env);
-int  lu_env_refill_by_tags(struct lu_env *env, __u32 ctags, __u32 stags);
-
-/** @} lu_context */
-
-/**
- * Output site statistical counters into a buffer. Suitable for
- * ll_rd_*()-style functions.
- */
-int lu_site_stats_print(const struct lu_site *s, struct seq_file *m);
-
-/**
- * Common name structure to be passed around for various name related methods.
- */
-struct lu_name {
-	const char    *ln_name;
-	int	    ln_namelen;
-};
-
-/**
- * Common buffer structure to be passed around for various xattr_{s,g}et()
- * methods.
- */
-struct lu_buf {
-	void   *lb_buf;
-	ssize_t lb_len;
-};
-
-#define DLUBUF "(%p %zu)"
-#define PLUBUF(buf) (buf)->lb_buf, (buf)->lb_len
-/**
- * One-time initializers, called at obdclass module initialization, not
- * exported.
- */
-
-/**
- * Initialization of global lu_* data.
- */
-int lu_global_init(void);
-
-/**
- * Dual to lu_global_init().
- */
-void lu_global_fini(void);
-
-struct lu_kmem_descr {
-	struct kmem_cache **ckd_cache;
-	const char       *ckd_name;
-	const size_t      ckd_size;
-};
-
-int  lu_kmem_init(struct lu_kmem_descr *caches);
-void lu_kmem_fini(struct lu_kmem_descr *caches);
-
-void lu_object_assign_fid(const struct lu_env *env, struct lu_object *o,
-			  const struct lu_fid *fid);
-struct lu_object *lu_object_anon(const struct lu_env *env,
-				 struct lu_device *dev,
-				 const struct lu_object_conf *conf);
-
-/** null buffer */
-extern struct lu_buf LU_BUF_NULL;
-
-void lu_buf_free(struct lu_buf *buf);
-void lu_buf_alloc(struct lu_buf *buf, int size);
-void lu_buf_realloc(struct lu_buf *buf, int size);
-
-int lu_buf_check_and_grow(struct lu_buf *buf, int len);
-struct lu_buf *lu_buf_check_and_alloc(struct lu_buf *buf, int len);
-
-/** @} lu */
-#endif /* __LUSTRE_LU_OBJECT_H */
diff --git a/drivers/staging/lustre/lustre/include/lu_ref.h b/drivers/staging/lustre/lustre/include/lu_ref.h
deleted file mode 100644
index b451a888ca3a..000000000000
--- a/drivers/staging/lustre/lustre/include/lu_ref.h
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *
- *   This file is part of Lustre, http://www.lustre.org.
- *
- *   Lustre is free software; you can redistribute it and/or
- *   modify it under the terms of version 2 of the GNU General Public
- *   License as published by the Free Software Foundation.
- *
- *   Lustre is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Lustre; if not, write to the Free Software
- *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#ifndef __LUSTRE_LU_REF_H
-#define __LUSTRE_LU_REF_H
-
-#include <linux/list.h>
-
-/** \defgroup lu_ref lu_ref
- *
- * An interface to track references between objects. Mostly for debugging.
- *
- * Suppose there is a reference counted data-structure struct foo. To track
- * who acquired references to instance of struct foo, add lu_ref field to it:
- *
- * \code
- *	 struct foo {
- *		 atomic_t      foo_refcount;
- *		 struct lu_ref foo_reference;
- *		 ...
- *	 };
- * \endcode
- *
- * foo::foo_reference has to be initialized by calling
- * lu_ref_init(). Typically there will be functions or macros to increment and
- * decrement foo::foo_refcount, let's say they are foo_get(struct foo *foo)
- * and foo_put(struct foo *foo), respectively.
- *
- * Whenever foo_get() is called to acquire a reference on a foo, lu_ref_add()
- * has to be called to insert into foo::foo_reference a record, describing
- * acquired reference. Dually, lu_ref_del() removes matching record. Typical
- * usages are:
- *
- * \code
- *	struct bar *bar;
- *
- *	// bar owns a reference to foo.
- *	bar->bar_foo = foo_get(foo);
- *	lu_ref_add(&foo->foo_reference, "bar", bar);
- *
- *	...
- *
- *	// reference from bar to foo is released.
- *	lu_ref_del(&foo->foo_reference, "bar", bar);
- *	foo_put(bar->bar_foo);
- *
- *
- *	// current thread acquired a temporary reference to foo.
- *	foo_get(foo);
- *	lu_ref_add(&foo->reference, __func__, current);
- *
- *	...
- *
- *	// temporary reference is released.
- *	lu_ref_del(&foo->reference, __func__, current);
- *	foo_put(foo);
- * \endcode
- *
- * \e Et \e cetera. Often it makes sense to include lu_ref_add() and
- * lu_ref_del() calls into foo_get() and foo_put(). When an instance of struct
- * foo is destroyed, lu_ref_fini() has to be called that checks that no
- * pending references remain. lu_ref_print() can be used to dump a list of
- * pending references, while hunting down a leak.
- *
- * For objects to which a large number of references can be acquired,
- * lu_ref_del() can become cpu consuming, as it has to scan the list of
- * references. To work around this, remember result of lu_ref_add() (usually
- * in the same place where pointer to struct foo is stored), and use
- * lu_ref_del_at():
- *
- * \code
- *	// There is a large number of bar's for a single foo.
- *	bar->bar_foo     = foo_get(foo);
- *	bar->bar_foo_ref = lu_ref_add(&foo->foo_reference, "bar", bar);
- *
- *	...
- *
- *	// reference from bar to foo is released.
- *	lu_ref_del_at(&foo->foo_reference, bar->bar_foo_ref, "bar", bar);
- *	foo_put(bar->bar_foo);
- * \endcode
- *
- * lu_ref interface degrades gracefully in case of memory shortages.
- *
- * @{
- */
-
-
-/*
- * dummy data structures/functions to pass compile for now.
- * We need to reimplement them with kref.
- */
-struct lu_ref {};
-struct lu_ref_link {};
-
-static inline void lu_ref_init(struct lu_ref *ref)
-{
-}
-
-static inline void lu_ref_fini(struct lu_ref *ref)
-{
-}
-
-static inline struct lu_ref_link *lu_ref_add(struct lu_ref *ref,
-					     const char *scope,
-					     const void *source)
-{
-	return NULL;
-}
-
-static inline struct lu_ref_link *lu_ref_add_atomic(struct lu_ref *ref,
-						    const char *scope,
-						    const void *source)
-{
-	return NULL;
-}
-
-static inline void lu_ref_add_at(struct lu_ref *ref,
-				 struct lu_ref_link *link,
-				 const char *scope,
-				 const void *source)
-{
-}
-
-static inline void lu_ref_del(struct lu_ref *ref, const char *scope,
-			      const void *source)
-{
-}
-
-static inline void lu_ref_set_at(struct lu_ref *ref, struct lu_ref_link *link,
-				 const char *scope, const void *source0,
-				 const void *source1)
-{
-}
-
-static inline void lu_ref_del_at(struct lu_ref *ref, struct lu_ref_link *link,
-				 const char *scope, const void *source)
-{
-}
-
-static inline int lu_ref_global_init(void)
-{
-	return 0;
-}
-
-static inline void lu_ref_global_fini(void)
-{
-}
-
-static inline void lu_ref_print(const struct lu_ref *ref)
-{
-}
-
-static inline void lu_ref_print_all(void)
-{
-}
-
-/** @} lu */
-
-#endif /* __LUSTRE_LU_REF_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre/libiam.h b/drivers/staging/lustre/lustre/include/lustre/libiam.h
deleted file mode 100644
index e8e0b084a6bc..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre/libiam.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre/libiam.h
- *
- * iam user level library
- *
- * Author: Wang Di <wangdi@clusterfs.com>
- * Author: Nikita Danilov <nikita@clusterfs.com>
- * Author: Fan Yong <fanyong@clusterfs.com>
- */
-
-/*
- *  lustre/libiam.h
- */
-
-#ifndef __IAM_ULIB_H__
-#define __IAM_ULIB_H__
-
-/** \defgroup libiam libiam
- *
- * @{
- */
-
-
-#define DX_FMT_NAME_LEN 16
-
-enum iam_fmt_t {
-	FMT_LFIX,
-	FMT_LVAR
-};
-
-struct iam_uapi_info {
-	__u16 iui_keysize;
-	__u16 iui_recsize;
-	__u16 iui_ptrsize;
-	__u16 iui_height;
-	char  iui_fmt_name[DX_FMT_NAME_LEN];
-};
-
-/*
- * Creat an iam file, but do NOT open it.
- * Return 0 if success, else -1.
- */
-int iam_creat(char *filename, enum iam_fmt_t fmt,
-	      int blocksize, int keysize, int recsize, int ptrsize);
-
-/*
- * Open an iam file, but do NOT creat it if the file doesn't exist.
- * Please use iam_creat for creating the file before use iam_open.
- * Return file id (fd) if success, else -1.
- */
-int iam_open(char *filename, struct iam_uapi_info *ua);
-
-/*
- * Close file opened by iam_open.
- */
-int iam_close(int fd);
-
-/*
- * Please use iam_open before use this function.
- */
-int iam_insert(int fd, struct iam_uapi_info *ua,
-	       int key_need_convert, char *keybuf,
-	       int rec_need_convert, char *recbuf);
-
-/*
- * Please use iam_open before use this function.
- */
-int iam_lookup(int fd, struct iam_uapi_info *ua,
-	       int key_need_convert, char *key_buf,
-	       int *keysize, char *save_key,
-	       int rec_need_convert, char *rec_buf,
-	       int *recsize, char *save_rec);
-
-/*
- * Please use iam_open before use this function.
- */
-int iam_delete(int fd, struct iam_uapi_info *ua,
-	       int key_need_convert, char *keybuf,
-	       int rec_need_convert, char *recbuf);
-
-/*
- * Please use iam_open before use this function.
- */
-int iam_it_start(int fd, struct iam_uapi_info *ua,
-		 int key_need_convert, char *key_buf,
-		 int *keysize, char *save_key,
-		 int rec_need_convert, char *rec_buf,
-		 int *recsize, char *save_rec);
-
-/*
- * Please use iam_open before use this function.
- */
-int iam_it_next(int fd, struct iam_uapi_info *ua,
-		int key_need_convert, char *key_buf,
-		int *keysize, char *save_key,
-		int rec_need_convert, char *rec_buf,
-		int *recsize, char *save_rec);
-
-/*
- * Please use iam_open before use this function.
- */
-int iam_it_stop(int fd, struct iam_uapi_info *ua,
-		int key_need_convert, char *keybuf,
-		int rec_need_convert, char *recbuf);
-
-/*
- * Change iam file mode.
- */
-int iam_polymorph(char *filename, unsigned long mode);
-
-/** @} libiam */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h b/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
deleted file mode 100644
index ad253c6deadd..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre/ll_fiemap.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre/ll_fiemap.h
- *
- * FIEMAP data structures and flags. This header file will be used until
- * fiemap.h is available in the upstream kernel.
- *
- * Author: Kalpak Shah <kalpak.shah@sun.com>
- * Author: Andreas Dilger <adilger@sun.com>
- */
-
-#ifndef _LUSTRE_FIEMAP_H
-#define _LUSTRE_FIEMAP_H
-
-
-
-struct ll_fiemap_extent {
-	__u64 fe_logical;  /* logical offset in bytes for the start of
-			    * the extent from the beginning of the file */
-	__u64 fe_physical; /* physical offset in bytes for the start
-			    * of the extent from the beginning of the disk */
-	__u64 fe_length;   /* length in bytes for this extent */
-	__u64 fe_reserved64[2];
-	__u32 fe_flags;    /* FIEMAP_EXTENT_* flags for this extent */
-	__u32 fe_device;   /* device number for this extent */
-	__u32 fe_reserved[2];
-};
-
-struct ll_user_fiemap {
-	__u64 fm_start;  /* logical offset (inclusive) at
-			  * which to start mapping (in) */
-	__u64 fm_length; /* logical length of mapping which
-			  * userspace wants (in) */
-	__u32 fm_flags;  /* FIEMAP_FLAG_* flags for request (in/out) */
-	__u32 fm_mapped_extents;/* number of extents that were mapped (out) */
-	__u32 fm_extent_count;  /* size of fm_extents array (in) */
-	__u32 fm_reserved;
-	struct ll_fiemap_extent fm_extents[0]; /* array of mapped extents (out) */
-};
-
-#define FIEMAP_MAX_OFFSET      (~0ULL)
-
-#define FIEMAP_FLAG_SYNC	 0x00000001 /* sync file data before map */
-#define FIEMAP_FLAG_XATTR	0x00000002 /* map extended attribute tree */
-
-#define FIEMAP_EXTENT_LAST	      0x00000001 /* Last extent in file. */
-#define FIEMAP_EXTENT_UNKNOWN	   0x00000002 /* Data location unknown. */
-#define FIEMAP_EXTENT_DELALLOC	  0x00000004 /* Location still pending.
-						    * Sets EXTENT_UNKNOWN. */
-#define FIEMAP_EXTENT_ENCODED	   0x00000008 /* Data can not be read
-						    * while fs is unmounted */
-#define FIEMAP_EXTENT_DATA_ENCRYPTED    0x00000080 /* Data is encrypted by fs.
-						    * Sets EXTENT_NO_DIRECT. */
-#define FIEMAP_EXTENT_NOT_ALIGNED       0x00000100 /* Extent offsets may not be
-						    * block aligned. */
-#define FIEMAP_EXTENT_DATA_INLINE       0x00000200 /* Data mixed with metadata.
-						    * Sets EXTENT_NOT_ALIGNED.*/
-#define FIEMAP_EXTENT_DATA_TAIL	 0x00000400 /* Multiple files in block.
-						    * Sets EXTENT_NOT_ALIGNED.*/
-#define FIEMAP_EXTENT_UNWRITTEN	 0x00000800 /* Space allocated, but
-						    * no data (i.e. zero). */
-#define FIEMAP_EXTENT_MERGED	    0x00001000 /* File does not natively
-						    * support extents. Result
-						    * merged for efficiency. */
-
-
-static inline size_t fiemap_count_to_size(size_t extent_count)
-{
-	return (sizeof(struct ll_user_fiemap) + extent_count *
-					       sizeof(struct ll_fiemap_extent));
-}
-
-static inline unsigned fiemap_size_to_count(size_t array_size)
-{
-	return ((array_size - sizeof(struct ll_user_fiemap)) /
-					       sizeof(struct ll_fiemap_extent));
-}
-
-#define FIEMAP_FLAG_DEVICE_ORDER 0x40000000 /* return device ordered mapping */
-
-#ifdef FIEMAP_FLAGS_COMPAT
-#undef FIEMAP_FLAGS_COMPAT
-#endif
-
-/* Lustre specific flags - use a high bit, don't conflict with upstream flag */
-#define FIEMAP_EXTENT_NO_DIRECT	 0x40000000 /* Data mapping undefined */
-#define FIEMAP_EXTENT_NET	       0x80000000 /* Data stored remotely.
-						    * Sets NO_DIRECT flag */
-
-#endif /* _LUSTRE_FIEMAP_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_build_version.h b/drivers/staging/lustre/lustre/include/lustre/lustre_build_version.h
deleted file mode 100644
index 93a3d7db3010..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_build_version.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#define BUILD_VERSION "v2_3_64_0-g6e62c21-CHANGED-3.9.0"
-#define LUSTRE_RELEASE 3.9.0_g6e62c21
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_errno.h b/drivers/staging/lustre/lustre/include/lustre/lustre_errno.h
deleted file mode 100644
index 35aefa2cdad1..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_errno.h
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.txt
- *
- * GPL HEADER END
- */
-/*
- * Copyright (C) 2011 FUJITSU LIMITED.  All rights reserved.
- *
- * Copyright (c) 2013, Intel Corporation.
- */
-
-#ifndef LUSTRE_ERRNO_H
-#define LUSTRE_ERRNO_H
-
-/*
- * Only "network" errnos, which are defined below, are allowed on wire (or on
- * disk).  Generic routines exist to help translate between these and a subset
- * of the "host" errnos.  Some host errnos (e.g., EDEADLOCK) are intentionally
- * left out.  See also the comment on lustre_errno_hton_mapping[].
- *
- * To maintain compatibility with existing x86 clients and servers, each of
- * these network errnos has the same numerical value as its corresponding host
- * errno on x86.
- */
-#define LUSTRE_EPERM		1	/* Operation not permitted */
-#define LUSTRE_ENOENT		2	/* No such file or directory */
-#define LUSTRE_ESRCH		3	/* No such process */
-#define LUSTRE_EINTR		4	/* Interrupted system call */
-#define LUSTRE_EIO		5	/* I/O error */
-#define LUSTRE_ENXIO		6	/* No such device or address */
-#define LUSTRE_E2BIG		7	/* Argument list too long */
-#define LUSTRE_ENOEXEC		8	/* Exec format error */
-#define LUSTRE_EBADF		9	/* Bad file number */
-#define LUSTRE_ECHILD		10	/* No child processes */
-#define LUSTRE_EAGAIN		11	/* Try again */
-#define LUSTRE_ENOMEM		12	/* Out of memory */
-#define LUSTRE_EACCES		13	/* Permission denied */
-#define LUSTRE_EFAULT		14	/* Bad address */
-#define LUSTRE_ENOTBLK		15	/* Block device required */
-#define LUSTRE_EBUSY		16	/* Device or resource busy */
-#define LUSTRE_EEXIST		17	/* File exists */
-#define LUSTRE_EXDEV		18	/* Cross-device link */
-#define LUSTRE_ENODEV		19	/* No such device */
-#define LUSTRE_ENOTDIR		20	/* Not a directory */
-#define LUSTRE_EISDIR		21	/* Is a directory */
-#define LUSTRE_EINVAL		22	/* Invalid argument */
-#define LUSTRE_ENFILE		23	/* File table overflow */
-#define LUSTRE_EMFILE		24	/* Too many open files */
-#define LUSTRE_ENOTTY		25	/* Not a typewriter */
-#define LUSTRE_ETXTBSY		26	/* Text file busy */
-#define LUSTRE_EFBIG		27	/* File too large */
-#define LUSTRE_ENOSPC		28	/* No space left on device */
-#define LUSTRE_ESPIPE		29	/* Illegal seek */
-#define LUSTRE_EROFS		30	/* Read-only file system */
-#define LUSTRE_EMLINK		31	/* Too many links */
-#define LUSTRE_EPIPE		32	/* Broken pipe */
-#define LUSTRE_EDOM		33	/* Math argument out of domain of
-					   func */
-#define LUSTRE_ERANGE		34	/* Math result not representable */
-#define LUSTRE_EDEADLK		35	/* Resource deadlock would occur */
-#define LUSTRE_ENAMETOOLONG	36	/* File name too long */
-#define LUSTRE_ENOLCK		37	/* No record locks available */
-#define LUSTRE_ENOSYS		38	/* Function not implemented */
-#define LUSTRE_ENOTEMPTY	39	/* Directory not empty */
-#define LUSTRE_ELOOP		40	/* Too many symbolic links
-					   encountered */
-#define LUSTRE_ENOMSG		42	/* No message of desired type */
-#define LUSTRE_EIDRM		43	/* Identifier removed */
-#define LUSTRE_ECHRNG		44	/* Channel number out of range */
-#define LUSTRE_EL2NSYNC		45	/* Level 2 not synchronized */
-#define LUSTRE_EL3HLT		46	/* Level 3 halted */
-#define LUSTRE_EL3RST		47	/* Level 3 reset */
-#define LUSTRE_ELNRNG		48	/* Link number out of range */
-#define LUSTRE_EUNATCH		49	/* Protocol driver not attached */
-#define LUSTRE_ENOCSI		50	/* No CSI structure available */
-#define LUSTRE_EL2HLT		51	/* Level 2 halted */
-#define LUSTRE_EBADE		52	/* Invalid exchange */
-#define LUSTRE_EBADR		53	/* Invalid request descriptor */
-#define LUSTRE_EXFULL		54	/* Exchange full */
-#define LUSTRE_ENOANO		55	/* No anode */
-#define LUSTRE_EBADRQC		56	/* Invalid request code */
-#define LUSTRE_EBADSLT		57	/* Invalid slot */
-#define LUSTRE_EBFONT		59	/* Bad font file format */
-#define LUSTRE_ENOSTR		60	/* Device not a stream */
-#define LUSTRE_ENODATA		61	/* No data available */
-#define LUSTRE_ETIME		62	/* Timer expired */
-#define LUSTRE_ENOSR		63	/* Out of streams resources */
-#define LUSTRE_ENONET		64	/* Machine is not on the network */
-#define LUSTRE_ENOPKG		65	/* Package not installed */
-#define LUSTRE_EREMOTE		66	/* Object is remote */
-#define LUSTRE_ENOLINK		67	/* Link has been severed */
-#define LUSTRE_EADV		68	/* Advertise error */
-#define LUSTRE_ESRMNT		69	/* Srmount error */
-#define LUSTRE_ECOMM		70	/* Communication error on send */
-#define LUSTRE_EPROTO		71	/* Protocol error */
-#define LUSTRE_EMULTIHOP	72	/* Multihop attempted */
-#define LUSTRE_EDOTDOT		73	/* RFS specific error */
-#define LUSTRE_EBADMSG		74	/* Not a data message */
-#define LUSTRE_EOVERFLOW	75	/* Value too large for defined data
-					   type */
-#define LUSTRE_ENOTUNIQ		76	/* Name not unique on network */
-#define LUSTRE_EBADFD		77	/* File descriptor in bad state */
-#define LUSTRE_EREMCHG		78	/* Remote address changed */
-#define LUSTRE_ELIBACC		79	/* Can not access a needed shared
-					   library */
-#define LUSTRE_ELIBBAD		80	/* Accessing a corrupted shared
-					   library */
-#define LUSTRE_ELIBSCN		81	/* .lib section in a.out corrupted */
-#define LUSTRE_ELIBMAX		82	/* Attempting to link in too many shared
-					   libraries */
-#define LUSTRE_ELIBEXEC		83	/* Cannot exec a shared library
-					   directly */
-#define LUSTRE_EILSEQ		84	/* Illegal byte sequence */
-#define LUSTRE_ERESTART		85	/* Interrupted system call should be
-					   restarted */
-#define LUSTRE_ESTRPIPE		86	/* Streams pipe error */
-#define LUSTRE_EUSERS		87	/* Too many users */
-#define LUSTRE_ENOTSOCK		88	/* Socket operation on non-socket */
-#define LUSTRE_EDESTADDRREQ	89	/* Destination address required */
-#define LUSTRE_EMSGSIZE		90	/* Message too long */
-#define LUSTRE_EPROTOTYPE	91	/* Protocol wrong type for socket */
-#define LUSTRE_ENOPROTOOPT	92	/* Protocol not available */
-#define LUSTRE_EPROTONOSUPPORT	93	/* Protocol not supported */
-#define LUSTRE_ESOCKTNOSUPPORT	94	/* Socket type not supported */
-#define LUSTRE_EOPNOTSUPP	95	/* Operation not supported on transport
-					   endpoint */
-#define LUSTRE_EPFNOSUPPORT	96	/* Protocol family not supported */
-#define LUSTRE_EAFNOSUPPORT	97	/* Address family not supported by
-					   protocol */
-#define LUSTRE_EADDRINUSE	98	/* Address already in use */
-#define LUSTRE_EADDRNOTAVAIL	99	/* Cannot assign requested address */
-#define LUSTRE_ENETDOWN		100	/* Network is down */
-#define LUSTRE_ENETUNREACH	101	/* Network is unreachable */
-#define LUSTRE_ENETRESET	102	/* Network dropped connection because of
-					   reset */
-#define LUSTRE_ECONNABORTED	103	/* Software caused connection abort */
-#define LUSTRE_ECONNRESET	104	/* Connection reset by peer */
-#define LUSTRE_ENOBUFS		105	/* No buffer space available */
-#define LUSTRE_EISCONN		106	/* Transport endpoint is already
-					   connected */
-#define LUSTRE_ENOTCONN		107	/* Transport endpoint is not
-					   connected */
-#define LUSTRE_ESHUTDOWN	108	/* Cannot send after transport endpoint
-					   shutdown */
-#define LUSTRE_ETOOMANYREFS	109	/* Too many references: cannot splice */
-#define LUSTRE_ETIMEDOUT	110	/* Connection timed out */
-#define LUSTRE_ECONNREFUSED	111	/* Connection refused */
-#define LUSTRE_EHOSTDOWN	112	/* Host is down */
-#define LUSTRE_EHOSTUNREACH	113	/* No route to host */
-#define LUSTRE_EALREADY		114	/* Operation already in progress */
-#define LUSTRE_EINPROGRESS	115	/* Operation now in progress */
-#define LUSTRE_ESTALE		116	/* Stale file handle */
-#define LUSTRE_EUCLEAN		117	/* Structure needs cleaning */
-#define LUSTRE_ENOTNAM		118	/* Not a XENIX named type file */
-#define LUSTRE_ENAVAIL		119	/* No XENIX semaphores available */
-#define LUSTRE_EISNAM		120	/* Is a named type file */
-#define LUSTRE_EREMOTEIO	121	/* Remote I/O error */
-#define LUSTRE_EDQUOT		122	/* Quota exceeded */
-#define LUSTRE_ENOMEDIUM	123	/* No medium found */
-#define LUSTRE_EMEDIUMTYPE	124	/* Wrong medium type */
-#define LUSTRE_ECANCELED	125	/* Operation Canceled */
-#define LUSTRE_ENOKEY		126	/* Required key not available */
-#define LUSTRE_EKEYEXPIRED	127	/* Key has expired */
-#define LUSTRE_EKEYREVOKED	128	/* Key has been revoked */
-#define LUSTRE_EKEYREJECTED	129	/* Key was rejected by service */
-#define LUSTRE_EOWNERDEAD	130	/* Owner died */
-#define LUSTRE_ENOTRECOVERABLE	131	/* State not recoverable */
-#define LUSTRE_ERESTARTSYS	512
-#define LUSTRE_ERESTARTNOINTR	513
-#define LUSTRE_ERESTARTNOHAND	514	/* restart if no handler.. */
-#define LUSTRE_ENOIOCTLCMD	515	/* No ioctl command */
-#define LUSTRE_ERESTART_RESTARTBLOCK 516 /* restart by calling
-					    sys_restart_syscall */
-#define LUSTRE_EBADHANDLE	521	/* Illegal NFS file handle */
-#define LUSTRE_ENOTSYNC		522	/* Update synchronization mismatch */
-#define LUSTRE_EBADCOOKIE	523	/* Cookie is stale */
-#define LUSTRE_ENOTSUPP		524	/* Operation is not supported */
-#define LUSTRE_ETOOSMALL	525	/* Buffer or request is too small */
-#define LUSTRE_ESERVERFAULT	526	/* An untranslatable error occurred */
-#define LUSTRE_EBADTYPE		527	/* Type not supported by server */
-#define LUSTRE_EJUKEBOX		528	/* Request initiated, but will not
-					   complete before timeout */
-#define LUSTRE_EIOCBQUEUED	529	/* iocb queued, will get completion
-					   event */
-#define LUSTRE_EIOCBRETRY	530	/* iocb queued, will trigger a retry */
-
-/*
- * Translations are optimized away on x86.  Host errnos that shouldn't be put
- * on wire could leak through as a result.  Do not count on this side effect.
- */
-#ifdef CONFIG_LUSTRE_TRANSLATE_ERRNOS
-unsigned int lustre_errno_hton(unsigned int h);
-unsigned int lustre_errno_ntoh(unsigned int n);
-#else
-#define lustre_errno_hton(h) (h)
-#define lustre_errno_ntoh(n) (n)
-#endif
-
-#endif /* LUSTRE_ERRNO_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
deleted file mode 100644
index ac78dbc38b9f..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ /dev/null
@@ -1,3740 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre/lustre_idl.h
- *
- * Lustre wire protocol definitions.
- */
-
-/** \defgroup lustreidl lustreidl
- *
- * Lustre wire protocol definitions.
- *
- * ALL structs passing over the wire should be declared here.  Structs
- * that are used in interfaces with userspace should go in lustre_user.h.
- *
- * All structs being declared here should be built from simple fixed-size
- * types (__u8, __u16, __u32, __u64) or be built from other types or
- * structs also declared in this file.  Similarly, all flags and magic
- * values in those structs should also be declared here.  This ensures
- * that the Lustre wire protocol is not influenced by external dependencies.
- *
- * The only other acceptable items in this file are VERY SIMPLE accessor
- * functions to avoid callers grubbing inside the structures, and the
- * prototypes of the swabber functions for each struct.  Nothing that
- * depends on external functions or definitions should be in here.
- *
- * Structs must be properly aligned to put 64-bit values on an 8-byte
- * boundary.  Any structs being added here must also be added to
- * utils/wirecheck.c and "make newwiretest" run to regenerate the
- * utils/wiretest.c sources.  This allows us to verify that wire structs
- * have the proper alignment/size on all architectures.
- *
- * DO NOT CHANGE any of the structs, flags, values declared here and used
- * in released Lustre versions.  Some structs may have padding fields that
- * can be used.  Some structs might allow addition at the end (verify this
- * in the code to ensure that new/old clients that see this larger struct
- * do not fail, otherwise you need to implement protocol compatibility).
- *
- * We assume all nodes are either little-endian or big-endian, and we
- * always send messages in the sender's native format.  The receiver
- * detects the message format by checking the 'magic' field of the message
- * (see lustre_msg_swabbed() below).
- *
- * Each wire type has corresponding 'lustre_swab_xxxtypexxx()' routines,
- * implemented either here, inline (trivial implementations) or in
- * ptlrpc/pack_generic.c.  These 'swabbers' convert the type from "other"
- * endian, in-place in the message buffer.
- *
- * A swabber takes a single pointer argument.  The caller must already have
- * verified that the length of the message buffer >= sizeof (type).
- *
- * For variable length types, a second 'lustre_swab_v_xxxtypexxx()' routine
- * may be defined that swabs just the variable part, after the caller has
- * verified that the message buffer is large enough.
- *
- * @{
- */
-
-#ifndef _LUSTRE_IDL_H_
-#define _LUSTRE_IDL_H_
-
-#include "../../../include/linux/libcfs/libcfs.h"
-#include "../../../include/linux/lnet/types.h"
-
-/* Defn's shared with user-space. */
-#include "lustre_user.h"
-#include "lustre_errno.h"
-
-/*
- *  GENERAL STUFF
- */
-/* FOO_REQUEST_PORTAL is for incoming requests on the FOO
- * FOO_REPLY_PORTAL   is for incoming replies on the FOO
- * FOO_BULK_PORTAL    is for incoming bulk on the FOO
- */
-
-/* Lustre service names are following the format
- * service name + MDT + seq name
- */
-#define LUSTRE_MDT_MAXNAMELEN	80
-
-#define CONNMGR_REQUEST_PORTAL	  1
-#define CONNMGR_REPLY_PORTAL	    2
-//#define OSC_REQUEST_PORTAL	    3
-#define OSC_REPLY_PORTAL		4
-//#define OSC_BULK_PORTAL	       5
-#define OST_IO_PORTAL		   6
-#define OST_CREATE_PORTAL	       7
-#define OST_BULK_PORTAL		 8
-//#define MDC_REQUEST_PORTAL	    9
-#define MDC_REPLY_PORTAL	       10
-//#define MDC_BULK_PORTAL	      11
-#define MDS_REQUEST_PORTAL	     12
-//#define MDS_REPLY_PORTAL	     13
-#define MDS_BULK_PORTAL		14
-#define LDLM_CB_REQUEST_PORTAL	 15
-#define LDLM_CB_REPLY_PORTAL	   16
-#define LDLM_CANCEL_REQUEST_PORTAL     17
-#define LDLM_CANCEL_REPLY_PORTAL       18
-//#define PTLBD_REQUEST_PORTAL	   19
-//#define PTLBD_REPLY_PORTAL	     20
-//#define PTLBD_BULK_PORTAL	      21
-#define MDS_SETATTR_PORTAL	     22
-#define MDS_READPAGE_PORTAL	    23
-#define OUT_PORTAL		    24
-
-#define MGC_REPLY_PORTAL	       25
-#define MGS_REQUEST_PORTAL	     26
-#define MGS_REPLY_PORTAL	       27
-#define OST_REQUEST_PORTAL	     28
-#define FLD_REQUEST_PORTAL	     29
-#define SEQ_METADATA_PORTAL	    30
-#define SEQ_DATA_PORTAL		31
-#define SEQ_CONTROLLER_PORTAL	  32
-#define MGS_BULK_PORTAL		33
-
-/* Portal 63 is reserved for the Cray Inc DVS - nic@cray.com, roe@cray.com, n8851@cray.com */
-
-/* packet types */
-#define PTL_RPC_MSG_REQUEST 4711
-#define PTL_RPC_MSG_ERR     4712
-#define PTL_RPC_MSG_REPLY   4713
-
-/* DON'T use swabbed values of MAGIC as magic! */
-#define LUSTRE_MSG_MAGIC_V1 0x0BD00BD0
-#define LUSTRE_MSG_MAGIC_V2 0x0BD00BD3
-
-#define LUSTRE_MSG_MAGIC_V1_SWABBED 0xD00BD00B
-#define LUSTRE_MSG_MAGIC_V2_SWABBED 0xD30BD00B
-
-#define LUSTRE_MSG_MAGIC LUSTRE_MSG_MAGIC_V2
-
-#define PTLRPC_MSG_VERSION  0x00000003
-#define LUSTRE_VERSION_MASK 0xffff0000
-#define LUSTRE_OBD_VERSION  0x00010000
-#define LUSTRE_MDS_VERSION  0x00020000
-#define LUSTRE_OST_VERSION  0x00030000
-#define LUSTRE_DLM_VERSION  0x00040000
-#define LUSTRE_LOG_VERSION  0x00050000
-#define LUSTRE_MGS_VERSION  0x00060000
-
-/**
- * Describes a range of sequence, lsr_start is included but lsr_end is
- * not in the range.
- * Same structure is used in fld module where lsr_index field holds mdt id
- * of the home mdt.
- */
-struct lu_seq_range {
-	__u64 lsr_start;
-	__u64 lsr_end;
-	__u32 lsr_index;
-	__u32 lsr_flags;
-};
-
-#define LU_SEQ_RANGE_MDT	0x0
-#define LU_SEQ_RANGE_OST	0x1
-#define LU_SEQ_RANGE_ANY	0x3
-
-#define LU_SEQ_RANGE_MASK	0x3
-
-static inline unsigned fld_range_type(const struct lu_seq_range *range)
-{
-	return range->lsr_flags & LU_SEQ_RANGE_MASK;
-}
-
-static inline int fld_range_is_ost(const struct lu_seq_range *range)
-{
-	return fld_range_type(range) == LU_SEQ_RANGE_OST;
-}
-
-static inline int fld_range_is_mdt(const struct lu_seq_range *range)
-{
-	return fld_range_type(range) == LU_SEQ_RANGE_MDT;
-}
-
-/**
- * This all range is only being used when fld client sends fld query request,
- * but it does not know whether the seq is MDT or OST, so it will send req
- * with ALL type, which means either seq type gotten from lookup can be
- * expected.
- */
-static inline unsigned fld_range_is_any(const struct lu_seq_range *range)
-{
-	return fld_range_type(range) == LU_SEQ_RANGE_ANY;
-}
-
-static inline void fld_range_set_type(struct lu_seq_range *range,
-				      unsigned flags)
-{
-	range->lsr_flags |= flags;
-}
-
-static inline void fld_range_set_mdt(struct lu_seq_range *range)
-{
-	fld_range_set_type(range, LU_SEQ_RANGE_MDT);
-}
-
-static inline void fld_range_set_ost(struct lu_seq_range *range)
-{
-	fld_range_set_type(range, LU_SEQ_RANGE_OST);
-}
-
-static inline void fld_range_set_any(struct lu_seq_range *range)
-{
-	fld_range_set_type(range, LU_SEQ_RANGE_ANY);
-}
-
-/**
- * returns  width of given range \a r
- */
-
-static inline __u64 range_space(const struct lu_seq_range *range)
-{
-	return range->lsr_end - range->lsr_start;
-}
-
-/**
- * initialize range to zero
- */
-
-static inline void range_init(struct lu_seq_range *range)
-{
-	memset(range, 0, sizeof(*range));
-}
-
-/**
- * check if given seq id \a s is within given range \a r
- */
-
-static inline int range_within(const struct lu_seq_range *range,
-			       __u64 s)
-{
-	return s >= range->lsr_start && s < range->lsr_end;
-}
-
-static inline int range_is_sane(const struct lu_seq_range *range)
-{
-	return (range->lsr_end >= range->lsr_start);
-}
-
-static inline int range_is_zero(const struct lu_seq_range *range)
-{
-	return (range->lsr_start == 0 && range->lsr_end == 0);
-}
-
-static inline int range_is_exhausted(const struct lu_seq_range *range)
-
-{
-	return range_space(range) == 0;
-}
-
-/* return 0 if two range have the same location */
-static inline int range_compare_loc(const struct lu_seq_range *r1,
-				    const struct lu_seq_range *r2)
-{
-	return r1->lsr_index != r2->lsr_index ||
-	       r1->lsr_flags != r2->lsr_flags;
-}
-
-#define DRANGE "[%#16.16Lx-%#16.16Lx):%x:%s"
-
-#define PRANGE(range)		\
-	(range)->lsr_start,	\
-	(range)->lsr_end,	\
-	(range)->lsr_index,	\
-	fld_range_is_mdt(range) ? "mdt" : "ost"
-
-
-/** \defgroup lu_fid lu_fid
- * @{ */
-
-/**
- * Flags for lustre_mdt_attrs::lma_compat and lustre_mdt_attrs::lma_incompat.
- * Deprecated since HSM and SOM attributes are now stored in separate on-disk
- * xattr.
- */
-enum lma_compat {
-	LMAC_HSM	= 0x00000001,
-	LMAC_SOM	= 0x00000002,
-	LMAC_NOT_IN_OI	= 0x00000004, /* the object does NOT need OI mapping */
-	LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
-				       * under /O/<seq>/d<x>. */
-};
-
-/**
- * Masks for all features that should be supported by a Lustre version to
- * access a specific file.
- * This information is stored in lustre_mdt_attrs::lma_incompat.
- */
-enum lma_incompat {
-	LMAI_RELEASED		= 0x00000001, /* file is released */
-	LMAI_AGENT		= 0x00000002, /* agent inode */
-	LMAI_REMOTE_PARENT	= 0x00000004, /* the parent of the object
-						 is on the remote MDT */
-};
-#define LMA_INCOMPAT_SUPP	(LMAI_AGENT | LMAI_REMOTE_PARENT)
-
-/**
- * fid constants
- */
-enum {
-	/** LASTID file has zero OID */
-	LUSTRE_FID_LASTID_OID = 0UL,
-	/** initial fid id value */
-	LUSTRE_FID_INIT_OID  = 1UL
-};
-
-/** returns fid object sequence */
-static inline __u64 fid_seq(const struct lu_fid *fid)
-{
-	return fid->f_seq;
-}
-
-/** returns fid object id */
-static inline __u32 fid_oid(const struct lu_fid *fid)
-{
-	return fid->f_oid;
-}
-
-/** returns fid object version */
-static inline __u32 fid_ver(const struct lu_fid *fid)
-{
-	return fid->f_ver;
-}
-
-static inline void fid_zero(struct lu_fid *fid)
-{
-	memset(fid, 0, sizeof(*fid));
-}
-
-static inline __u64 fid_ver_oid(const struct lu_fid *fid)
-{
-	return ((__u64)fid_ver(fid) << 32 | fid_oid(fid));
-}
-
-/**
- * Note that reserved SEQ numbers below 12 will conflict with ldiskfs
- * inodes in the IGIF namespace, so these reserved SEQ numbers can be
- * used for other purposes and not risk collisions with existing inodes.
- *
- * Different FID Format
- * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0
- */
-enum fid_seq {
-	FID_SEQ_OST_MDT0	= 0,
-	FID_SEQ_LLOG		= 1, /* unnamed llogs */
-	FID_SEQ_ECHO		= 2,
-	FID_SEQ_OST_MDT1	= 3,
-	FID_SEQ_OST_MAX		= 9, /* Max MDT count before OST_on_FID */
-	FID_SEQ_LLOG_NAME	= 10, /* named llogs */
-	FID_SEQ_RSVD		= 11,
-	FID_SEQ_IGIF		= 12,
-	FID_SEQ_IGIF_MAX	= 0x0ffffffffULL,
-	FID_SEQ_IDIF		= 0x100000000ULL,
-	FID_SEQ_IDIF_MAX	= 0x1ffffffffULL,
-	/* Normal FID sequence starts from this value, i.e. 1<<33 */
-	FID_SEQ_START		= 0x200000000ULL,
-	/* sequence for local pre-defined FIDs listed in local_oid */
-	FID_SEQ_LOCAL_FILE	= 0x200000001ULL,
-	FID_SEQ_DOT_LUSTRE	= 0x200000002ULL,
-	/* sequence is used for local named objects FIDs generated
-	 * by local_object_storage library */
-	FID_SEQ_LOCAL_NAME	= 0x200000003ULL,
-	/* Because current FLD will only cache the fid sequence, instead
-	 * of oid on the client side, if the FID needs to be exposed to
-	 * clients sides, it needs to make sure all of fids under one
-	 * sequence will be located in one MDT. */
-	FID_SEQ_SPECIAL		= 0x200000004ULL,
-	FID_SEQ_QUOTA		= 0x200000005ULL,
-	FID_SEQ_QUOTA_GLB	= 0x200000006ULL,
-	FID_SEQ_ROOT		= 0x200000007ULL,  /* Located on MDT0 */
-	FID_SEQ_NORMAL		= 0x200000400ULL,
-	FID_SEQ_LOV_DEFAULT	= 0xffffffffffffffffULL
-};
-
-#define OBIF_OID_MAX_BITS	   32
-#define OBIF_MAX_OID		(1ULL << OBIF_OID_MAX_BITS)
-#define OBIF_OID_MASK	       ((1ULL << OBIF_OID_MAX_BITS) - 1)
-#define IDIF_OID_MAX_BITS	   48
-#define IDIF_MAX_OID		(1ULL << IDIF_OID_MAX_BITS)
-#define IDIF_OID_MASK	       ((1ULL << IDIF_OID_MAX_BITS) - 1)
-
-/** OID for FID_SEQ_SPECIAL */
-enum special_oid {
-	/* Big Filesystem Lock to serialize rename operations */
-	FID_OID_SPECIAL_BFL     = 1UL,
-};
-
-/** OID for FID_SEQ_DOT_LUSTRE */
-enum dot_lustre_oid {
-	FID_OID_DOT_LUSTRE  = 1UL,
-	FID_OID_DOT_LUSTRE_OBF = 2UL,
-};
-
-static inline int fid_seq_is_mdt0(__u64 seq)
-{
-	return (seq == FID_SEQ_OST_MDT0);
-}
-
-static inline int fid_seq_is_mdt(const __u64 seq)
-{
-	return seq == FID_SEQ_OST_MDT0 || seq >= FID_SEQ_NORMAL;
-};
-
-static inline int fid_seq_is_echo(__u64 seq)
-{
-	return (seq == FID_SEQ_ECHO);
-}
-
-static inline int fid_is_echo(const struct lu_fid *fid)
-{
-	return fid_seq_is_echo(fid_seq(fid));
-}
-
-static inline int fid_seq_is_llog(__u64 seq)
-{
-	return (seq == FID_SEQ_LLOG);
-}
-
-static inline int fid_is_llog(const struct lu_fid *fid)
-{
-	/* file with OID == 0 is not llog but contains last oid */
-	return fid_seq_is_llog(fid_seq(fid)) && fid_oid(fid) > 0;
-}
-
-static inline int fid_seq_is_rsvd(const __u64 seq)
-{
-	return (seq > FID_SEQ_OST_MDT0 && seq <= FID_SEQ_RSVD);
-};
-
-static inline int fid_seq_is_special(const __u64 seq)
-{
-	return seq == FID_SEQ_SPECIAL;
-};
-
-static inline int fid_seq_is_local_file(const __u64 seq)
-{
-	return seq == FID_SEQ_LOCAL_FILE ||
-	       seq == FID_SEQ_LOCAL_NAME;
-};
-
-static inline int fid_seq_is_root(const __u64 seq)
-{
-	return seq == FID_SEQ_ROOT;
-}
-
-static inline int fid_seq_is_dot(const __u64 seq)
-{
-	return seq == FID_SEQ_DOT_LUSTRE;
-}
-
-static inline int fid_seq_is_default(const __u64 seq)
-{
-	return seq == FID_SEQ_LOV_DEFAULT;
-}
-
-static inline int fid_is_mdt0(const struct lu_fid *fid)
-{
-	return fid_seq_is_mdt0(fid_seq(fid));
-}
-
-static inline void lu_root_fid(struct lu_fid *fid)
-{
-	fid->f_seq = FID_SEQ_ROOT;
-	fid->f_oid = 1;
-	fid->f_ver = 0;
-}
-
-/**
- * Check if a fid is igif or not.
- * \param fid the fid to be tested.
- * \return true if the fid is a igif; otherwise false.
- */
-static inline int fid_seq_is_igif(const __u64 seq)
-{
-	return seq >= FID_SEQ_IGIF && seq <= FID_SEQ_IGIF_MAX;
-}
-
-static inline int fid_is_igif(const struct lu_fid *fid)
-{
-	return fid_seq_is_igif(fid_seq(fid));
-}
-
-/**
- * Check if a fid is idif or not.
- * \param fid the fid to be tested.
- * \return true if the fid is a idif; otherwise false.
- */
-static inline int fid_seq_is_idif(const __u64 seq)
-{
-	return seq >= FID_SEQ_IDIF && seq <= FID_SEQ_IDIF_MAX;
-}
-
-static inline int fid_is_idif(const struct lu_fid *fid)
-{
-	return fid_seq_is_idif(fid_seq(fid));
-}
-
-static inline int fid_is_local_file(const struct lu_fid *fid)
-{
-	return fid_seq_is_local_file(fid_seq(fid));
-}
-
-static inline int fid_seq_is_norm(const __u64 seq)
-{
-	return (seq >= FID_SEQ_NORMAL);
-}
-
-static inline int fid_is_norm(const struct lu_fid *fid)
-{
-	return fid_seq_is_norm(fid_seq(fid));
-}
-
-/* convert an OST objid into an IDIF FID SEQ number */
-static inline __u64 fid_idif_seq(__u64 id, __u32 ost_idx)
-{
-	return FID_SEQ_IDIF | (ost_idx << 16) | ((id >> 32) & 0xffff);
-}
-
-/* convert a packed IDIF FID into an OST objid */
-static inline __u64 fid_idif_id(__u64 seq, __u32 oid, __u32 ver)
-{
-	return ((__u64)ver << 48) | ((seq & 0xffff) << 32) | oid;
-}
-
-/* extract ost index from IDIF FID */
-static inline __u32 fid_idif_ost_idx(const struct lu_fid *fid)
-{
-	return (fid_seq(fid) >> 16) & 0xffff;
-}
-
-/* extract OST sequence (group) from a wire ost_id (id/seq) pair */
-static inline __u64 ostid_seq(const struct ost_id *ostid)
-{
-	if (fid_seq_is_mdt0(ostid->oi.oi_seq))
-		return FID_SEQ_OST_MDT0;
-
-	if (fid_seq_is_default(ostid->oi.oi_seq))
-		return FID_SEQ_LOV_DEFAULT;
-
-	if (fid_is_idif(&ostid->oi_fid))
-		return FID_SEQ_OST_MDT0;
-
-	return fid_seq(&ostid->oi_fid);
-}
-
-/* extract OST objid from a wire ost_id (id/seq) pair */
-static inline __u64 ostid_id(const struct ost_id *ostid)
-{
-	if (fid_seq_is_mdt0(ostid_seq(ostid)))
-		return ostid->oi.oi_id & IDIF_OID_MASK;
-
-	if (fid_is_idif(&ostid->oi_fid))
-		return fid_idif_id(fid_seq(&ostid->oi_fid),
-				   fid_oid(&ostid->oi_fid), 0);
-
-	return fid_oid(&ostid->oi_fid);
-}
-
-static inline void ostid_set_seq(struct ost_id *oi, __u64 seq)
-{
-	if (fid_seq_is_mdt0(seq) || fid_seq_is_default(seq)) {
-		oi->oi.oi_seq = seq;
-	} else {
-		oi->oi_fid.f_seq = seq;
-		/* Note: if f_oid + f_ver is zero, we need init it
-		 * to be 1, otherwise, ostid_seq will treat this
-		 * as old ostid (oi_seq == 0) */
-		if (oi->oi_fid.f_oid == 0 && oi->oi_fid.f_ver == 0)
-			oi->oi_fid.f_oid = LUSTRE_FID_INIT_OID;
-	}
-}
-
-static inline void ostid_set_seq_mdt0(struct ost_id *oi)
-{
-	ostid_set_seq(oi, FID_SEQ_OST_MDT0);
-}
-
-static inline void ostid_set_seq_echo(struct ost_id *oi)
-{
-	ostid_set_seq(oi, FID_SEQ_ECHO);
-}
-
-static inline void ostid_set_seq_llog(struct ost_id *oi)
-{
-	ostid_set_seq(oi, FID_SEQ_LLOG);
-}
-
-/**
- * Note: we need check oi_seq to decide where to set oi_id,
- * so oi_seq should always be set ahead of oi_id.
- */
-static inline void ostid_set_id(struct ost_id *oi, __u64 oid)
-{
-	if (fid_seq_is_mdt0(ostid_seq(oi))) {
-		if (oid >= IDIF_MAX_OID) {
-			CERROR("Bad %llu to set "DOSTID"\n",
-				oid, POSTID(oi));
-			return;
-		}
-		oi->oi.oi_id = oid;
-	} else {
-		if (oid > OBIF_MAX_OID) {
-			CERROR("Bad %llu to set "DOSTID"\n",
-				oid, POSTID(oi));
-			return;
-		}
-		oi->oi_fid.f_oid = oid;
-	}
-}
-
-static inline void ostid_inc_id(struct ost_id *oi)
-{
-	if (fid_seq_is_mdt0(ostid_seq(oi))) {
-		if (unlikely(ostid_id(oi) + 1 > IDIF_MAX_OID)) {
-			CERROR("Bad inc "DOSTID"\n", POSTID(oi));
-			return;
-		}
-		oi->oi.oi_id++;
-	} else {
-		oi->oi_fid.f_oid++;
-	}
-}
-
-static inline void ostid_dec_id(struct ost_id *oi)
-{
-	if (fid_seq_is_mdt0(ostid_seq(oi)))
-		oi->oi.oi_id--;
-	else
-		oi->oi_fid.f_oid--;
-}
-
-/**
- * Unpack an OST object id/seq (group) into a FID.  This is needed for
- * converting all obdo, lmm, lsm, etc. 64-bit id/seq pairs into proper
- * FIDs.  Note that if an id/seq is already in FID/IDIF format it will
- * be passed through unchanged.  Only legacy OST objects in "group 0"
- * will be mapped into the IDIF namespace so that they can fit into the
- * struct lu_fid fields without loss.  For reference see:
- * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs
- */
-static inline int ostid_to_fid(struct lu_fid *fid, struct ost_id *ostid,
-			       __u32 ost_idx)
-{
-	if (ost_idx > 0xffff) {
-		CERROR("bad ost_idx, "DOSTID" ost_idx:%u\n", POSTID(ostid),
-		       ost_idx);
-		return -EBADF;
-	}
-
-	if (fid_seq_is_mdt0(ostid_seq(ostid))) {
-		/* This is a "legacy" (old 1.x/2.early) OST object in "group 0"
-		 * that we map into the IDIF namespace.  It allows up to 2^48
-		 * objects per OST, as this is the object namespace that has
-		 * been in production for years.  This can handle create rates
-		 * of 1M objects/s/OST for 9 years, or combinations thereof. */
-		if (ostid_id(ostid) >= IDIF_MAX_OID) {
-			 CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
-				POSTID(ostid), ost_idx);
-			 return -EBADF;
-		}
-		fid->f_seq = fid_idif_seq(ostid_id(ostid), ost_idx);
-		/* truncate to 32 bits by assignment */
-		fid->f_oid = ostid_id(ostid);
-		/* in theory, not currently used */
-		fid->f_ver = ostid_id(ostid) >> 48;
-	} else /* if (fid_seq_is_idif(seq) || fid_seq_is_norm(seq)) */ {
-	       /* This is either an IDIF object, which identifies objects across
-		* all OSTs, or a regular FID.  The IDIF namespace maps legacy
-		* OST objects into the FID namespace.  In both cases, we just
-		* pass the FID through, no conversion needed. */
-		if (ostid->oi_fid.f_ver != 0) {
-			CERROR("bad MDT0 id, "DOSTID" ost_idx:%u\n",
-				POSTID(ostid), ost_idx);
-			return -EBADF;
-		}
-		*fid = ostid->oi_fid;
-	}
-
-	return 0;
-}
-
-/* pack any OST FID into an ostid (id/seq) for the wire/disk */
-static inline int fid_to_ostid(const struct lu_fid *fid, struct ost_id *ostid)
-{
-	if (unlikely(fid_seq_is_igif(fid->f_seq))) {
-		CERROR("bad IGIF, "DFID"\n", PFID(fid));
-		return -EBADF;
-	}
-
-	if (fid_is_idif(fid)) {
-		ostid_set_seq_mdt0(ostid);
-		ostid_set_id(ostid, fid_idif_id(fid_seq(fid), fid_oid(fid),
-						fid_ver(fid)));
-	} else {
-		ostid->oi_fid = *fid;
-	}
-
-	return 0;
-}
-
-/* Check whether the fid is for LAST_ID */
-static inline int fid_is_last_id(const struct lu_fid *fid)
-{
-	return (fid_oid(fid) == 0);
-}
-
-/**
- * Get inode number from a igif.
- * \param fid a igif to get inode number from.
- * \return inode number for the igif.
- */
-static inline ino_t lu_igif_ino(const struct lu_fid *fid)
-{
-	return fid_seq(fid);
-}
-
-void lustre_swab_ost_id(struct ost_id *oid);
-
-/**
- * Get inode generation from a igif.
- * \param fid a igif to get inode generation from.
- * \return inode generation for the igif.
- */
-static inline __u32 lu_igif_gen(const struct lu_fid *fid)
-{
-	return fid_oid(fid);
-}
-
-/**
- * Build igif from the inode number/generation.
- */
-static inline void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen)
-{
-	fid->f_seq = ino;
-	fid->f_oid = gen;
-	fid->f_ver = 0;
-}
-
-/*
- * Fids are transmitted across network (in the sender byte-ordering),
- * and stored on disk in big-endian order.
- */
-static inline void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src)
-{
-	dst->f_seq = cpu_to_le64(fid_seq(src));
-	dst->f_oid = cpu_to_le32(fid_oid(src));
-	dst->f_ver = cpu_to_le32(fid_ver(src));
-}
-
-static inline void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
-{
-	dst->f_seq = le64_to_cpu(fid_seq(src));
-	dst->f_oid = le32_to_cpu(fid_oid(src));
-	dst->f_ver = le32_to_cpu(fid_ver(src));
-}
-
-static inline void fid_cpu_to_be(struct lu_fid *dst, const struct lu_fid *src)
-{
-	dst->f_seq = cpu_to_be64(fid_seq(src));
-	dst->f_oid = cpu_to_be32(fid_oid(src));
-	dst->f_ver = cpu_to_be32(fid_ver(src));
-}
-
-static inline void fid_be_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
-{
-	dst->f_seq = be64_to_cpu(fid_seq(src));
-	dst->f_oid = be32_to_cpu(fid_oid(src));
-	dst->f_ver = be32_to_cpu(fid_ver(src));
-}
-
-static inline int fid_is_sane(const struct lu_fid *fid)
-{
-	return fid != NULL &&
-	       ((fid_seq(fid) >= FID_SEQ_START && fid_ver(fid) == 0) ||
-		fid_is_igif(fid) || fid_is_idif(fid) ||
-		fid_seq_is_rsvd(fid_seq(fid)));
-}
-
-static inline int fid_is_zero(const struct lu_fid *fid)
-{
-	return fid_seq(fid) == 0 && fid_oid(fid) == 0;
-}
-
-void lustre_swab_lu_fid(struct lu_fid *fid);
-void lustre_swab_lu_seq_range(struct lu_seq_range *range);
-
-static inline int lu_fid_eq(const struct lu_fid *f0, const struct lu_fid *f1)
-{
-	return memcmp(f0, f1, sizeof(*f0)) == 0;
-}
-
-#define __diff_normalize(val0, val1)			    \
-({							      \
-	typeof(val0) __val0 = (val0);			   \
-	typeof(val1) __val1 = (val1);			   \
-								\
-	(__val0 == __val1 ? 0 : __val0 > __val1 ? +1 : -1);     \
-})
-
-static inline int lu_fid_cmp(const struct lu_fid *f0,
-			     const struct lu_fid *f1)
-{
-	return
-		__diff_normalize(fid_seq(f0), fid_seq(f1)) ?:
-		__diff_normalize(fid_oid(f0), fid_oid(f1)) ?:
-		__diff_normalize(fid_ver(f0), fid_ver(f1));
-}
-
-static inline void ostid_cpu_to_le(const struct ost_id *src_oi,
-				   struct ost_id *dst_oi)
-{
-	if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
-		dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
-		dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
-	} else {
-		fid_cpu_to_le(&dst_oi->oi_fid, &src_oi->oi_fid);
-	}
-}
-
-static inline void ostid_le_to_cpu(const struct ost_id *src_oi,
-				   struct ost_id *dst_oi)
-{
-	if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
-		dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
-		dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
-	} else {
-		fid_le_to_cpu(&dst_oi->oi_fid, &src_oi->oi_fid);
-	}
-}
-
-/** @} lu_fid */
-
-/** \defgroup lu_dir lu_dir
- * @{ */
-
-/**
- * Enumeration of possible directory entry attributes.
- *
- * Attributes follow directory entry header in the order they appear in this
- * enumeration.
- */
-enum lu_dirent_attrs {
-	LUDA_FID		= 0x0001,
-	LUDA_TYPE		= 0x0002,
-	LUDA_64BITHASH		= 0x0004,
-
-	/* The following attrs are used for MDT internal only,
-	 * not visible to client */
-
-	/* Verify the dirent consistency */
-	LUDA_VERIFY		= 0x8000,
-	/* Only check but not repair the dirent inconsistency */
-	LUDA_VERIFY_DRYRUN	= 0x4000,
-	/* The dirent has been repaired, or to be repaired (dryrun). */
-	LUDA_REPAIR		= 0x2000,
-	/* The system is upgraded, has beed or to be repaired (dryrun). */
-	LUDA_UPGRADE		= 0x1000,
-	/* Ignore this record, go to next directly. */
-	LUDA_IGNORE		= 0x0800,
-};
-
-#define LU_DIRENT_ATTRS_MASK	0xf800
-
-/**
- * Layout of readdir pages, as transmitted on wire.
- */
-struct lu_dirent {
-	/** valid if LUDA_FID is set. */
-	struct lu_fid lde_fid;
-	/** a unique entry identifier: a hash or an offset. */
-	__u64	 lde_hash;
-	/** total record length, including all attributes. */
-	__u16	 lde_reclen;
-	/** name length */
-	__u16	 lde_namelen;
-	/** optional variable size attributes following this entry.
-	 *  taken from enum lu_dirent_attrs.
-	 */
-	__u32	 lde_attrs;
-	/** name is followed by the attributes indicated in ->ldp_attrs, in
-	 *  their natural order. After the last attribute, padding bytes are
-	 *  added to make ->lde_reclen a multiple of 8.
-	 */
-	char	  lde_name[0];
-};
-
-/*
- * Definitions of optional directory entry attributes formats.
- *
- * Individual attributes do not have their length encoded in a generic way. It
- * is assumed that consumer of an attribute knows its format. This means that
- * it is impossible to skip over an unknown attribute, except by skipping over all
- * remaining attributes (by using ->lde_reclen), which is not too
- * constraining, because new server versions will append new attributes at
- * the end of an entry.
- */
-
-/**
- * Fid directory attribute: a fid of an object referenced by the entry. This
- * will be almost always requested by the client and supplied by the server.
- *
- * Aligned to 8 bytes.
- */
-/* To have compatibility with 1.8, lets have fid in lu_dirent struct. */
-
-/**
- * File type.
- *
- * Aligned to 2 bytes.
- */
-struct luda_type {
-	__u16 lt_type;
-};
-
-#ifndef IFSHIFT
-#define IFSHIFT                 12
-#endif
-
-#ifndef IFTODT
-#define IFTODT(type)		(((type) & S_IFMT) >> IFSHIFT)
-#endif
-#ifndef DTTOIF
-#define DTTOIF(dirtype)		((dirtype) << IFSHIFT)
-#endif
-
-
-struct lu_dirpage {
-	__u64	    ldp_hash_start;
-	__u64	    ldp_hash_end;
-	__u32	    ldp_flags;
-	__u32	    ldp_pad0;
-	struct lu_dirent ldp_entries[0];
-};
-
-enum lu_dirpage_flags {
-	/**
-	 * dirpage contains no entry.
-	 */
-	LDF_EMPTY   = 1 << 0,
-	/**
-	 * last entry's lde_hash equals ldp_hash_end.
-	 */
-	LDF_COLLIDE = 1 << 1
-};
-
-static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp)
-{
-	if (le32_to_cpu(dp->ldp_flags) & LDF_EMPTY)
-		return NULL;
-	else
-		return dp->ldp_entries;
-}
-
-static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent)
-{
-	struct lu_dirent *next;
-
-	if (le16_to_cpu(ent->lde_reclen) != 0)
-		next = ((void *)ent) + le16_to_cpu(ent->lde_reclen);
-	else
-		next = NULL;
-
-	return next;
-}
-
-static inline int lu_dirent_calc_size(int namelen, __u16 attr)
-{
-	int size;
-
-	if (attr & LUDA_TYPE) {
-		const unsigned align = sizeof(struct luda_type) - 1;
-		size = (sizeof(struct lu_dirent) + namelen + align) & ~align;
-		size += sizeof(struct luda_type);
-	} else
-		size = sizeof(struct lu_dirent) + namelen;
-
-	return (size + 7) & ~7;
-}
-
-static inline int lu_dirent_size(struct lu_dirent *ent)
-{
-	if (le16_to_cpu(ent->lde_reclen) == 0) {
-		return lu_dirent_calc_size(le16_to_cpu(ent->lde_namelen),
-					   le32_to_cpu(ent->lde_attrs));
-	}
-	return le16_to_cpu(ent->lde_reclen);
-}
-
-#define MDS_DIR_END_OFF 0xfffffffffffffffeULL
-
-/**
- * MDS_READPAGE page size
- *
- * This is the directory page size packed in MDS_READPAGE RPC.
- * It's different than PAGE_CACHE_SIZE because the client needs to
- * access the struct lu_dirpage header packed at the beginning of
- * the "page" and without this there isn't any way to know find the
- * lu_dirpage header is if client and server PAGE_CACHE_SIZE differ.
- */
-#define LU_PAGE_SHIFT 12
-#define LU_PAGE_SIZE  (1UL << LU_PAGE_SHIFT)
-#define LU_PAGE_MASK  (~(LU_PAGE_SIZE - 1))
-
-#define LU_PAGE_COUNT (1 << (PAGE_CACHE_SHIFT - LU_PAGE_SHIFT))
-
-/** @} lu_dir */
-
-struct lustre_handle {
-	__u64 cookie;
-};
-#define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
-
-static inline int lustre_handle_is_used(struct lustre_handle *lh)
-{
-	return lh->cookie != 0ull;
-}
-
-static inline int lustre_handle_equal(const struct lustre_handle *lh1,
-				      const struct lustre_handle *lh2)
-{
-	return lh1->cookie == lh2->cookie;
-}
-
-static inline void lustre_handle_copy(struct lustre_handle *tgt,
-				      struct lustre_handle *src)
-{
-	tgt->cookie = src->cookie;
-}
-
-/* flags for lm_flags */
-#define MSGHDR_AT_SUPPORT	       0x1
-#define MSGHDR_CKSUM_INCOMPAT18	 0x2
-
-#define lustre_msg lustre_msg_v2
-/* we depend on this structure to be 8-byte aligned */
-/* this type is only endian-adjusted in lustre_unpack_msg() */
-struct lustre_msg_v2 {
-	__u32 lm_bufcount;
-	__u32 lm_secflvr;
-	__u32 lm_magic;
-	__u32 lm_repsize;
-	__u32 lm_cksum;
-	__u32 lm_flags;
-	__u32 lm_padding_2;
-	__u32 lm_padding_3;
-	__u32 lm_buflens[0];
-};
-
-/* without gss, ptlrpc_body is put at the first buffer. */
-#define PTLRPC_NUM_VERSIONS     4
-#define JOBSTATS_JOBID_SIZE     32  /* 32 bytes string */
-struct ptlrpc_body_v3 {
-	struct lustre_handle pb_handle;
-	__u32 pb_type;
-	__u32 pb_version;
-	__u32 pb_opc;
-	__u32 pb_status;
-	__u64 pb_last_xid;
-	__u64 pb_last_seen;
-	__u64 pb_last_committed;
-	__u64 pb_transno;
-	__u32 pb_flags;
-	__u32 pb_op_flags;
-	__u32 pb_conn_cnt;
-	__u32 pb_timeout;  /* for req, the deadline, for rep, the service est */
-	__u32 pb_service_time; /* for rep, actual service time */
-	__u32 pb_limit;
-	__u64 pb_slv;
-	/* VBR: pre-versions */
-	__u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
-	/* padding for future needs */
-	__u64 pb_padding[4];
-	char  pb_jobid[JOBSTATS_JOBID_SIZE];
-};
-#define ptlrpc_body     ptlrpc_body_v3
-
-struct ptlrpc_body_v2 {
-	struct lustre_handle pb_handle;
-	__u32 pb_type;
-	__u32 pb_version;
-	__u32 pb_opc;
-	__u32 pb_status;
-	__u64 pb_last_xid;
-	__u64 pb_last_seen;
-	__u64 pb_last_committed;
-	__u64 pb_transno;
-	__u32 pb_flags;
-	__u32 pb_op_flags;
-	__u32 pb_conn_cnt;
-	__u32 pb_timeout;  /* for req, the deadline, for rep, the service est */
-	__u32 pb_service_time; /* for rep, actual service time, also used for
-				  net_latency of req */
-	__u32 pb_limit;
-	__u64 pb_slv;
-	/* VBR: pre-versions */
-	__u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
-	/* padding for future needs */
-	__u64 pb_padding[4];
-};
-
-void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
-
-/* message body offset for lustre_msg_v2 */
-/* ptlrpc body offset in all request/reply messages */
-#define MSG_PTLRPC_BODY_OFF	     0
-
-/* normal request/reply message record offset */
-#define REQ_REC_OFF		     1
-#define REPLY_REC_OFF		   1
-
-/* ldlm request message body offset */
-#define DLM_LOCKREQ_OFF		 1 /* lockreq offset */
-#define DLM_REQ_REC_OFF		 2 /* normal dlm request record offset */
-
-/* ldlm intent lock message body offset */
-#define DLM_INTENT_IT_OFF	       2 /* intent lock it offset */
-#define DLM_INTENT_REC_OFF	      3 /* intent lock record offset */
-
-/* ldlm reply message body offset */
-#define DLM_LOCKREPLY_OFF	       1 /* lockrep offset */
-#define DLM_REPLY_REC_OFF	       2 /* reply record offset */
-
-/** only use in req->rq_{req,rep}_swab_mask */
-#define MSG_PTLRPC_HEADER_OFF	   31
-
-/* Flags that are operation-specific go in the top 16 bits. */
-#define MSG_OP_FLAG_MASK   0xffff0000
-#define MSG_OP_FLAG_SHIFT  16
-
-/* Flags that apply to all requests are in the bottom 16 bits */
-#define MSG_GEN_FLAG_MASK     0x0000ffff
-#define MSG_LAST_REPLAY	   0x0001
-#define MSG_RESENT		0x0002
-#define MSG_REPLAY		0x0004
-/* #define MSG_AT_SUPPORT	 0x0008
- * This was used in early prototypes of adaptive timeouts, and while there
- * shouldn't be any users of that code there also isn't a need for using this
- * bits. Defer usage until at least 1.10 to avoid potential conflict. */
-#define MSG_DELAY_REPLAY	  0x0010
-#define MSG_VERSION_REPLAY	0x0020
-#define MSG_REQ_REPLAY_DONE       0x0040
-#define MSG_LOCK_REPLAY_DONE      0x0080
-
-/*
- * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
- */
-
-#define MSG_CONNECT_RECOVERING  0x00000001
-#define MSG_CONNECT_RECONNECT   0x00000002
-#define MSG_CONNECT_REPLAYABLE  0x00000004
-//#define MSG_CONNECT_PEER	0x8
-#define MSG_CONNECT_LIBCLIENT   0x00000010
-#define MSG_CONNECT_INITIAL     0x00000020
-#define MSG_CONNECT_ASYNC       0x00000040
-#define MSG_CONNECT_NEXT_VER    0x00000080 /* use next version of lustre_msg */
-#define MSG_CONNECT_TRANSNO     0x00000100 /* report transno */
-
-/* Connect flags */
-#define OBD_CONNECT_RDONLY		0x1ULL /*client has read-only access*/
-#define OBD_CONNECT_INDEX		 0x2ULL /*connect specific LOV idx */
-#define OBD_CONNECT_MDS		   0x4ULL /*connect from MDT to OST */
-#define OBD_CONNECT_GRANT		 0x8ULL /*OSC gets grant at connect */
-#define OBD_CONNECT_SRVLOCK	      0x10ULL /*server takes locks for cli */
-#define OBD_CONNECT_VERSION	      0x20ULL /*Lustre versions in ocd */
-#define OBD_CONNECT_REQPORTAL	    0x40ULL /*Separate non-IO req portal */
-#define OBD_CONNECT_ACL		  0x80ULL /*access control lists */
-#define OBD_CONNECT_XATTR	       0x100ULL /*client use extended attr */
-#define OBD_CONNECT_CROW		0x200ULL /*MDS+OST create obj on write*/
-#define OBD_CONNECT_TRUNCLOCK	   0x400ULL /*locks on server for punch */
-#define OBD_CONNECT_TRANSNO	     0x800ULL /*replay sends init transno */
-#define OBD_CONNECT_IBITS	      0x1000ULL /*support for inodebits locks*/
-#define OBD_CONNECT_JOIN	       0x2000ULL /*files can be concatenated.
-						  *We do not support JOIN FILE
-						  *anymore, reserve this flags
-						  *just for preventing such bit
-						  *to be reused.*/
-#define OBD_CONNECT_ATTRFID	    0x4000ULL /*Server can GetAttr By Fid*/
-#define OBD_CONNECT_NODEVOH	    0x8000ULL /*No open hndl on specl nodes*/
-#define OBD_CONNECT_RMT_CLIENT	0x10000ULL /*Remote client */
-#define OBD_CONNECT_RMT_CLIENT_FORCE  0x20000ULL /*Remote client by force */
-#define OBD_CONNECT_BRW_SIZE	  0x40000ULL /*Max bytes per rpc */
-#define OBD_CONNECT_QUOTA64	   0x80000ULL /*Not used since 2.4 */
-#define OBD_CONNECT_MDS_CAPA	 0x100000ULL /*MDS capability */
-#define OBD_CONNECT_OSS_CAPA	 0x200000ULL /*OSS capability */
-#define OBD_CONNECT_CANCELSET	0x400000ULL /*Early batched cancels. */
-#define OBD_CONNECT_SOM	      0x800000ULL /*Size on MDS */
-#define OBD_CONNECT_AT	      0x1000000ULL /*client uses AT */
-#define OBD_CONNECT_LRU_RESIZE      0x2000000ULL /*LRU resize feature. */
-#define OBD_CONNECT_MDS_MDS	 0x4000000ULL /*MDS-MDS connection */
-#define OBD_CONNECT_REAL	    0x8000000ULL /*real connection */
-#define OBD_CONNECT_CHANGE_QS      0x10000000ULL /*Not used since 2.4 */
-#define OBD_CONNECT_CKSUM	  0x20000000ULL /*support several cksum algos*/
-#define OBD_CONNECT_FID	    0x40000000ULL /*FID is supported by server */
-#define OBD_CONNECT_VBR	    0x80000000ULL /*version based recovery */
-#define OBD_CONNECT_LOV_V3	0x100000000ULL /*client supports LOV v3 EA */
-#define OBD_CONNECT_GRANT_SHRINK  0x200000000ULL /* support grant shrink */
-#define OBD_CONNECT_SKIP_ORPHAN   0x400000000ULL /* don't reuse orphan objids */
-#define OBD_CONNECT_MAX_EASIZE    0x800000000ULL /* preserved for large EA */
-#define OBD_CONNECT_FULL20       0x1000000000ULL /* it is 2.0 client */
-#define OBD_CONNECT_LAYOUTLOCK   0x2000000000ULL /* client uses layout lock */
-#define OBD_CONNECT_64BITHASH    0x4000000000ULL /* client supports 64-bits
-						  * directory hash */
-#define OBD_CONNECT_MAXBYTES     0x8000000000ULL /* max stripe size */
-#define OBD_CONNECT_IMP_RECOV   0x10000000000ULL /* imp recovery support */
-#define OBD_CONNECT_JOBSTATS    0x20000000000ULL /* jobid in ptlrpc_body */
-#define OBD_CONNECT_UMASK       0x40000000000ULL /* create uses client umask */
-#define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client handles -EINPROGRESS
-						  * RPC error properly */
-#define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL/* extra grant params used for
-						  * finer space reservation */
-#define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* for the fixed 1.8
-						   * policy and 2.x server */
-#define OBD_CONNECT_LVB_TYPE	0x400000000000ULL /* variable type of LVB */
-#define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosecond timestamps */
-#define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL/* lightweight connection */
-#define OBD_CONNECT_SHORTIO     0x2000000000000ULL/* short io */
-#define OBD_CONNECT_PINGLESS	0x4000000000000ULL/* pings not required */
-#define OBD_CONNECT_FLOCK_DEAD	0x8000000000000ULL/* flock deadlock detection */
-#define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/*create stripe disposition*/
-
-/* XXX README XXX:
- * Please DO NOT add flag values here before first ensuring that this same
- * flag value is not in use on some other branch.  Please clear any such
- * changes with senior engineers before starting to use a new flag.  Then,
- * submit a small patch against EVERY branch that ONLY adds the new flag,
- * updates obd_connect_names[] for lprocfs_rd_connect_flags(), adds the
- * flag to check_obd_connect_data(), and updates wiretests accordingly, so it
- * can be approved and landed easily to reserve the flag for future use. */
-
-/* The MNE_SWAB flag is overloading the MDS_MDS bit only for the MGS
- * connection.  It is a temporary bug fix for Imperative Recovery interop
- * between 2.2 and 2.3 x86/ppc nodes, and can be removed when interop for
- * 2.2 clients/servers is no longer needed.  LU-1252/LU-1644. */
-#define OBD_CONNECT_MNE_SWAB		 OBD_CONNECT_MDS_MDS
-
-#define OCD_HAS_FLAG(ocd, flg)  \
-	(!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flg))
-
-
-#define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
-
-#define MDT_CONNECT_SUPPORTED  (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
-				OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
-				OBD_CONNECT_IBITS | \
-				OBD_CONNECT_NODEVOH | OBD_CONNECT_ATTRFID | \
-				OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
-				OBD_CONNECT_RMT_CLIENT | \
-				OBD_CONNECT_RMT_CLIENT_FORCE | \
-				OBD_CONNECT_BRW_SIZE | OBD_CONNECT_MDS_CAPA | \
-				OBD_CONNECT_OSS_CAPA | OBD_CONNECT_MDS_MDS | \
-				OBD_CONNECT_FID | LRU_RESIZE_CONNECT_FLAG | \
-				OBD_CONNECT_VBR | OBD_CONNECT_LOV_V3 | \
-				OBD_CONNECT_SOM | OBD_CONNECT_FULL20 | \
-				OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
-				OBD_CONNECT_EINPROGRESS | \
-				OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
-				OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
-				OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
-				OBD_CONNECT_FLOCK_DEAD | \
-				OBD_CONNECT_DISP_STRIPE)
-
-#define OST_CONNECT_SUPPORTED  (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
-				OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
-				OBD_CONNECT_TRUNCLOCK | OBD_CONNECT_INDEX | \
-				OBD_CONNECT_BRW_SIZE | OBD_CONNECT_OSS_CAPA | \
-				OBD_CONNECT_CANCELSET | OBD_CONNECT_AT | \
-				LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_CKSUM | \
-				OBD_CONNECT_RMT_CLIENT | \
-				OBD_CONNECT_RMT_CLIENT_FORCE | OBD_CONNECT_VBR | \
-				OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
-				OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 | \
-				OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
-				OBD_CONNECT_MAX_EASIZE | \
-				OBD_CONNECT_EINPROGRESS | \
-				OBD_CONNECT_JOBSTATS | \
-				OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
-				OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
-				OBD_CONNECT_PINGLESS)
-#define ECHO_CONNECT_SUPPORTED (0)
-#define MGS_CONNECT_SUPPORTED  (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
-				OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
-				OBD_CONNECT_MNE_SWAB | OBD_CONNECT_PINGLESS)
-
-/* Features required for this version of the client to work with server */
-#define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_IBITS | OBD_CONNECT_FID | \
-				 OBD_CONNECT_FULL20)
-
-#define OBD_OCD_VERSION(major, minor, patch, fix) (((major)<<24) + \
-						  ((minor)<<16) + \
-						  ((patch)<<8) + (fix))
-#define OBD_OCD_VERSION_MAJOR(version) ((int)((version)>>24)&255)
-#define OBD_OCD_VERSION_MINOR(version) ((int)((version)>>16)&255)
-#define OBD_OCD_VERSION_PATCH(version) ((int)((version)>>8)&255)
-#define OBD_OCD_VERSION_FIX(version)   ((int)(version)&255)
-
-/* This structure is used for both request and reply.
- *
- * If we eventually have separate connect data for different types, which we
- * almost certainly will, then perhaps we stick a union in here. */
-struct obd_connect_data_v1 {
-	__u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
-	__u32 ocd_version;	 /* lustre release version number */
-	__u32 ocd_grant;	 /* initial cache grant amount (bytes) */
-	__u32 ocd_index;	 /* LOV index to connect to */
-	__u32 ocd_brw_size;	 /* Maximum BRW size in bytes, must be 2^n */
-	__u64 ocd_ibits_known;   /* inode bits this client understands */
-	__u8  ocd_blocksize;     /* log2 of the backend filesystem blocksize */
-	__u8  ocd_inodespace;    /* log2 of the per-inode space consumption */
-	__u16 ocd_grant_extent;  /* per-extent grant overhead, in 1K blocks */
-	__u32 ocd_unused;	/* also fix lustre_swab_connect */
-	__u64 ocd_transno;       /* first transno from client to be replayed */
-	__u32 ocd_group;	 /* MDS group on OST */
-	__u32 ocd_cksum_types;   /* supported checksum algorithms */
-	__u32 ocd_max_easize;    /* How big LOV EA can be on MDS */
-	__u32 ocd_instance;      /* also fix lustre_swab_connect */
-	__u64 ocd_maxbytes;      /* Maximum stripe size in bytes */
-};
-
-struct obd_connect_data {
-	__u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
-	__u32 ocd_version;	 /* lustre release version number */
-	__u32 ocd_grant;	 /* initial cache grant amount (bytes) */
-	__u32 ocd_index;	 /* LOV index to connect to */
-	__u32 ocd_brw_size;	 /* Maximum BRW size in bytes */
-	__u64 ocd_ibits_known;   /* inode bits this client understands */
-	__u8  ocd_blocksize;     /* log2 of the backend filesystem blocksize */
-	__u8  ocd_inodespace;    /* log2 of the per-inode space consumption */
-	__u16 ocd_grant_extent;  /* per-extent grant overhead, in 1K blocks */
-	__u32 ocd_unused;	/* also fix lustre_swab_connect */
-	__u64 ocd_transno;       /* first transno from client to be replayed */
-	__u32 ocd_group;	 /* MDS group on OST */
-	__u32 ocd_cksum_types;   /* supported checksum algorithms */
-	__u32 ocd_max_easize;    /* How big LOV EA can be on MDS */
-	__u32 ocd_instance;      /* instance # of this target */
-	__u64 ocd_maxbytes;      /* Maximum stripe size in bytes */
-	/* Fields after ocd_maxbytes are only accessible by the receiver
-	 * if the corresponding flag in ocd_connect_flags is set. Accessing
-	 * any field after ocd_maxbytes on the receiver without a valid flag
-	 * may result in out-of-bound memory access and kernel oops. */
-	__u64 padding1;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding2;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding3;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding4;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding5;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding6;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding7;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding8;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 padding9;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 paddingA;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 paddingB;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 paddingC;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 paddingD;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 paddingE;	  /* added 2.1.0. also fix lustre_swab_connect */
-	__u64 paddingF;	  /* added 2.1.0. also fix lustre_swab_connect */
-};
-/* XXX README XXX:
- * Please DO NOT use any fields here before first ensuring that this same
- * field is not in use on some other branch.  Please clear any such changes
- * with senior engineers before starting to use a new field.  Then, submit
- * a small patch against EVERY branch that ONLY adds the new field along with
- * the matching OBD_CONNECT flag, so that can be approved and landed easily to
- * reserve the flag for future use. */
-
-
-void lustre_swab_connect(struct obd_connect_data *ocd);
-
-/*
- * Supported checksum algorithms. Up to 32 checksum types are supported.
- * (32-bit mask stored in obd_connect_data::ocd_cksum_types)
- * Please update DECLARE_CKSUM_NAME/OBD_CKSUM_ALL in obd.h when adding a new
- * algorithm and also the OBD_FL_CKSUM* flags.
- */
-typedef enum {
-	OBD_CKSUM_CRC32 = 0x00000001,
-	OBD_CKSUM_ADLER = 0x00000002,
-	OBD_CKSUM_CRC32C= 0x00000004,
-} cksum_type_t;
-
-/*
- *   OST requests: OBDO & OBD request records
- */
-
-/* opcodes */
-typedef enum {
-	OST_REPLY      =  0,       /* reply ? */
-	OST_GETATTR    =  1,
-	OST_SETATTR    =  2,
-	OST_READ       =  3,
-	OST_WRITE      =  4,
-	OST_CREATE     =  5,
-	OST_DESTROY    =  6,
-	OST_GET_INFO   =  7,
-	OST_CONNECT    =  8,
-	OST_DISCONNECT =  9,
-	OST_PUNCH      = 10,
-	OST_OPEN       = 11,
-	OST_CLOSE      = 12,
-	OST_STATFS     = 13,
-	OST_SYNC       = 16,
-	OST_SET_INFO   = 17,
-	OST_QUOTACHECK = 18,
-	OST_QUOTACTL   = 19,
-	OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
-	OST_LAST_OPC
-} ost_cmd_t;
-#define OST_FIRST_OPC  OST_REPLY
-
-enum obdo_flags {
-	OBD_FL_INLINEDATA   = 0x00000001,
-	OBD_FL_OBDMDEXISTS  = 0x00000002,
-	OBD_FL_DELORPHAN    = 0x00000004, /* if set in o_flags delete orphans */
-	OBD_FL_NORPC	= 0x00000008, /* set in o_flags do in OSC not OST */
-	OBD_FL_IDONLY       = 0x00000010, /* set in o_flags only adjust obj id*/
-	OBD_FL_RECREATE_OBJS= 0x00000020, /* recreate missing obj */
-	OBD_FL_DEBUG_CHECK  = 0x00000040, /* echo client/server debug check */
-	OBD_FL_NO_USRQUOTA  = 0x00000100, /* the object's owner is over quota */
-	OBD_FL_NO_GRPQUOTA  = 0x00000200, /* the object's group is over quota */
-	OBD_FL_CREATE_CROW  = 0x00000400, /* object should be create on write */
-	OBD_FL_SRVLOCK      = 0x00000800, /* delegate DLM locking to server */
-	OBD_FL_CKSUM_CRC32  = 0x00001000, /* CRC32 checksum type */
-	OBD_FL_CKSUM_ADLER  = 0x00002000, /* ADLER checksum type */
-	OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */
-	OBD_FL_CKSUM_RSVD2  = 0x00008000, /* for future cksum types */
-	OBD_FL_CKSUM_RSVD3  = 0x00010000, /* for future cksum types */
-	OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
-	OBD_FL_MMAP	 = 0x00040000, /* object is mmapped on the client.
-					   * XXX: obsoleted - reserved for old
-					   * clients prior than 2.2 */
-	OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
-	OBD_FL_NOSPC_BLK    = 0x00100000, /* no more block space on OST */
-
-	/* Note that while these checksum values are currently separate bits,
-	 * in 2.x we can actually allow all values from 1-31 if we wanted. */
-	OBD_FL_CKSUM_ALL    = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
-			      OBD_FL_CKSUM_CRC32C,
-
-	/* mask for local-only flag, which won't be sent over network */
-	OBD_FL_LOCAL_MASK   = 0xF0000000,
-};
-
-#define LOV_MAGIC_V1      0x0BD10BD0
-#define LOV_MAGIC	 LOV_MAGIC_V1
-#define LOV_MAGIC_JOIN_V1 0x0BD20BD0
-#define LOV_MAGIC_V3      0x0BD30BD0
-
-/*
- * magic for fully defined striping
- * the idea is that we should have different magics for striping "hints"
- * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct
- * lov_mds_md_v[13]). at the moment the magics are used in wire protocol,
- * we can't just change it w/o long way preparation, but we still need a
- * mechanism to allow LOD to differentiate hint versus ready striping.
- * so, at the moment we do a trick: MDT knows what to expect from request
- * depending on the case (replay uses ready striping, non-replay req uses
- * hints), so MDT replaces magic with appropriate one and now LOD can
- * easily understand what's inside -bzzz
- */
-#define LOV_MAGIC_V1_DEF  0x0CD10BD0
-#define LOV_MAGIC_V3_DEF  0x0CD30BD0
-
-#define LOV_PATTERN_RAID0	0x001   /* stripes are used round-robin */
-#define LOV_PATTERN_RAID1	0x002   /* stripes are mirrors of each other */
-#define LOV_PATTERN_FIRST	0x100   /* first stripe is not in round-robin */
-#define LOV_PATTERN_CMOBD	0x200
-
-#define LOV_PATTERN_F_MASK	0xffff0000
-#define LOV_PATTERN_F_RELEASED	0x80000000 /* HSM released file */
-
-#define lov_pattern(pattern)		(pattern & ~LOV_PATTERN_F_MASK)
-#define lov_pattern_flags(pattern)	(pattern & LOV_PATTERN_F_MASK)
-
-#define lov_ost_data lov_ost_data_v1
-struct lov_ost_data_v1 {	  /* per-stripe data structure (little-endian)*/
-	struct ost_id l_ost_oi;	  /* OST object ID */
-	__u32 l_ost_gen;	  /* generation of this l_ost_idx */
-	__u32 l_ost_idx;	  /* OST index in LOV (lov_tgt_desc->tgts) */
-};
-
-#define lov_mds_md lov_mds_md_v1
-struct lov_mds_md_v1 {	    /* LOV EA mds/wire data (little-endian) */
-	__u32 lmm_magic;	  /* magic number = LOV_MAGIC_V1 */
-	__u32 lmm_pattern;	/* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
-	struct ost_id	lmm_oi;	  /* LOV object ID */
-	__u32 lmm_stripe_size;    /* size of stripe in bytes */
-	/* lmm_stripe_count used to be __u32 */
-	__u16 lmm_stripe_count;   /* num stripes in use for this object */
-	__u16 lmm_layout_gen;     /* layout generation number */
-	struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
-};
-
-/**
- * Sigh, because pre-2.4 uses
- * struct lov_mds_md_v1 {
- *	........
- *	__u64 lmm_object_id;
- *	__u64 lmm_object_seq;
- *      ......
- *      }
- * to identify the LOV(MDT) object, and lmm_object_seq will
- * be normal_fid, which make it hard to combine these conversion
- * to ostid_to FID. so we will do lmm_oi/fid conversion separately
- *
- * We can tell the lmm_oi by this way,
- * 1.8: lmm_object_id = {inode}, lmm_object_gr = 0
- * 2.1: lmm_object_id = {oid < 128k}, lmm_object_seq = FID_SEQ_NORMAL
- * 2.4: lmm_oi.f_seq = FID_SEQ_NORMAL, lmm_oi.f_oid = {oid < 128k},
- *      lmm_oi.f_ver = 0
- *
- * But currently lmm_oi/lsm_oi does not have any "real" usages,
- * except for printing some information, and the user can always
- * get the real FID from LMA, besides this multiple case check might
- * make swab more complicate. So we will keep using id/seq for lmm_oi.
- */
-
-static inline void fid_to_lmm_oi(const struct lu_fid *fid,
-				 struct ost_id *oi)
-{
-	oi->oi.oi_id = fid_oid(fid);
-	oi->oi.oi_seq = fid_seq(fid);
-}
-
-static inline void lmm_oi_set_seq(struct ost_id *oi, __u64 seq)
-{
-	oi->oi.oi_seq = seq;
-}
-
-static inline __u64 lmm_oi_id(struct ost_id *oi)
-{
-	return oi->oi.oi_id;
-}
-
-static inline __u64 lmm_oi_seq(struct ost_id *oi)
-{
-	return oi->oi.oi_seq;
-}
-
-static inline void lmm_oi_le_to_cpu(struct ost_id *dst_oi,
-				    struct ost_id *src_oi)
-{
-	dst_oi->oi.oi_id = le64_to_cpu(src_oi->oi.oi_id);
-	dst_oi->oi.oi_seq = le64_to_cpu(src_oi->oi.oi_seq);
-}
-
-static inline void lmm_oi_cpu_to_le(struct ost_id *dst_oi,
-				    struct ost_id *src_oi)
-{
-	dst_oi->oi.oi_id = cpu_to_le64(src_oi->oi.oi_id);
-	dst_oi->oi.oi_seq = cpu_to_le64(src_oi->oi.oi_seq);
-}
-
-/* extern void lustre_swab_lov_mds_md(struct lov_mds_md *llm); */
-
-#define MAX_MD_SIZE							\
-	(sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
-#define MIN_MD_SIZE							\
-	(sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
-
-#define XATTR_NAME_ACL_ACCESS   "system.posix_acl_access"
-#define XATTR_NAME_ACL_DEFAULT  "system.posix_acl_default"
-#define XATTR_USER_PREFIX       "user."
-#define XATTR_TRUSTED_PREFIX    "trusted."
-#define XATTR_SECURITY_PREFIX   "security."
-#define XATTR_LUSTRE_PREFIX     "lustre."
-
-#define XATTR_NAME_LOV	  "trusted.lov"
-#define XATTR_NAME_LMA	  "trusted.lma"
-#define XATTR_NAME_LMV	  "trusted.lmv"
-#define XATTR_NAME_LINK	 "trusted.link"
-#define XATTR_NAME_FID	  "trusted.fid"
-#define XATTR_NAME_VERSION      "trusted.version"
-#define XATTR_NAME_SOM		"trusted.som"
-#define XATTR_NAME_HSM		"trusted.hsm"
-#define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_namespace"
-
-struct lov_mds_md_v3 {	    /* LOV EA mds/wire data (little-endian) */
-	__u32 lmm_magic;	  /* magic number = LOV_MAGIC_V3 */
-	__u32 lmm_pattern;	/* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
-	struct ost_id	lmm_oi;	  /* LOV object ID */
-	__u32 lmm_stripe_size;    /* size of stripe in bytes */
-	/* lmm_stripe_count used to be __u32 */
-	__u16 lmm_stripe_count;   /* num stripes in use for this object */
-	__u16 lmm_layout_gen;     /* layout generation number */
-	char  lmm_pool_name[LOV_MAXPOOLNAME]; /* must be 32bit aligned */
-	struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
-};
-
-static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
-{
-	if (lmm_magic == LOV_MAGIC_V3)
-		return sizeof(struct lov_mds_md_v3) +
-				stripes * sizeof(struct lov_ost_data_v1);
-	else
-		return sizeof(struct lov_mds_md_v1) +
-				stripes * sizeof(struct lov_ost_data_v1);
-}
-
-static inline __u32
-lov_mds_md_max_stripe_count(size_t buf_size, __u32 lmm_magic)
-{
-	switch (lmm_magic) {
-	case LOV_MAGIC_V1: {
-		struct lov_mds_md_v1 lmm;
-
-		if (buf_size < sizeof(lmm))
-			return 0;
-
-		return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
-	}
-	case LOV_MAGIC_V3: {
-		struct lov_mds_md_v3 lmm;
-
-		if (buf_size < sizeof(lmm))
-			return 0;
-
-		return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
-	}
-	default:
-		return 0;
-	}
-}
-
-#define OBD_MD_FLID	(0x00000001ULL) /* object ID */
-#define OBD_MD_FLATIME     (0x00000002ULL) /* access time */
-#define OBD_MD_FLMTIME     (0x00000004ULL) /* data modification time */
-#define OBD_MD_FLCTIME     (0x00000008ULL) /* change time */
-#define OBD_MD_FLSIZE      (0x00000010ULL) /* size */
-#define OBD_MD_FLBLOCKS    (0x00000020ULL) /* allocated blocks count */
-#define OBD_MD_FLBLKSZ     (0x00000040ULL) /* block size */
-#define OBD_MD_FLMODE      (0x00000080ULL) /* access bits (mode & ~S_IFMT) */
-#define OBD_MD_FLTYPE      (0x00000100ULL) /* object type (mode & S_IFMT) */
-#define OBD_MD_FLUID       (0x00000200ULL) /* user ID */
-#define OBD_MD_FLGID       (0x00000400ULL) /* group ID */
-#define OBD_MD_FLFLAGS     (0x00000800ULL) /* flags word */
-#define OBD_MD_FLNLINK     (0x00002000ULL) /* link count */
-#define OBD_MD_FLGENER     (0x00004000ULL) /* generation number */
-/*#define OBD_MD_FLINLINE    (0x00008000ULL)  inline data. used until 1.6.5 */
-#define OBD_MD_FLRDEV      (0x00010000ULL) /* device number */
-#define OBD_MD_FLEASIZE    (0x00020000ULL) /* extended attribute data */
-#define OBD_MD_LINKNAME    (0x00040000ULL) /* symbolic link target */
-#define OBD_MD_FLHANDLE    (0x00080000ULL) /* file/lock handle */
-#define OBD_MD_FLCKSUM     (0x00100000ULL) /* bulk data checksum */
-#define OBD_MD_FLQOS       (0x00200000ULL) /* quality of service stats */
-/*#define OBD_MD_FLOSCOPQ    (0x00400000ULL) osc opaque data, never used */
-#define OBD_MD_FLCOOKIE    (0x00800000ULL) /* log cancellation cookie */
-#define OBD_MD_FLGROUP     (0x01000000ULL) /* group */
-#define OBD_MD_FLFID       (0x02000000ULL) /* ->ost write inline fid */
-#define OBD_MD_FLEPOCH     (0x04000000ULL) /* ->ost write with ioepoch */
-					   /* ->mds if epoch opens or closes */
-#define OBD_MD_FLGRANT     (0x08000000ULL) /* ost preallocation space grant */
-#define OBD_MD_FLDIREA     (0x10000000ULL) /* dir's extended attribute data */
-#define OBD_MD_FLUSRQUOTA  (0x20000000ULL) /* over quota flags sent from ost */
-#define OBD_MD_FLGRPQUOTA  (0x40000000ULL) /* over quota flags sent from ost */
-#define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
-
-#define OBD_MD_MDS	 (0x0000000100000000ULL) /* where an inode lives on */
-#define OBD_MD_REINT       (0x0000000200000000ULL) /* reintegrate oa */
-#define OBD_MD_MEA	 (0x0000000400000000ULL) /* CMD split EA  */
-#define OBD_MD_TSTATE      (0x0000000800000000ULL) /* transient state field */
-
-#define OBD_MD_FLXATTR       (0x0000001000000000ULL) /* xattr */
-#define OBD_MD_FLXATTRLS     (0x0000002000000000ULL) /* xattr list */
-#define OBD_MD_FLXATTRRM     (0x0000004000000000ULL) /* xattr remove */
-#define OBD_MD_FLACL	 (0x0000008000000000ULL) /* ACL */
-#define OBD_MD_FLRMTPERM     (0x0000010000000000ULL) /* remote permission */
-#define OBD_MD_FLMDSCAPA     (0x0000020000000000ULL) /* MDS capability */
-#define OBD_MD_FLOSSCAPA     (0x0000040000000000ULL) /* OSS capability */
-#define OBD_MD_FLCKSPLIT     (0x0000080000000000ULL) /* Check split on server */
-#define OBD_MD_FLCROSSREF    (0x0000100000000000ULL) /* Cross-ref case */
-#define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
-						      * under lock; for xattr
-						      * requests means the
-						      * client holds the lock */
-#define OBD_MD_FLOBJCOUNT    (0x0000400000000000ULL) /* for multiple destroy */
-
-#define OBD_MD_FLRMTLSETFACL (0x0001000000000000ULL) /* lfs lsetfacl case */
-#define OBD_MD_FLRMTLGETFACL (0x0002000000000000ULL) /* lfs lgetfacl case */
-#define OBD_MD_FLRMTRSETFACL (0x0004000000000000ULL) /* lfs rsetfacl case */
-#define OBD_MD_FLRMTRGETFACL (0x0008000000000000ULL) /* lfs rgetfacl case */
-
-#define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
-#define OBD_MD_FLRELEASED    (0x0020000000000000ULL) /* file released */
-
-#define OBD_MD_FLGETATTR (OBD_MD_FLID    | OBD_MD_FLATIME | OBD_MD_FLMTIME | \
-			  OBD_MD_FLCTIME | OBD_MD_FLSIZE  | OBD_MD_FLBLKSZ | \
-			  OBD_MD_FLMODE  | OBD_MD_FLTYPE  | OBD_MD_FLUID   | \
-			  OBD_MD_FLGID   | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \
-			  OBD_MD_FLGENER | OBD_MD_FLRDEV  | OBD_MD_FLGROUP)
-
-#define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
-
-/* don't forget obdo_fid which is way down at the bottom so it can
- * come after the definition of llog_cookie */
-
-enum hss_valid {
-	HSS_SETMASK	= 0x01,
-	HSS_CLEARMASK	= 0x02,
-	HSS_ARCHIVE_ID	= 0x04,
-};
-
-struct hsm_state_set {
-	__u32	hss_valid;
-	__u32	hss_archive_id;
-	__u64	hss_setmask;
-	__u64	hss_clearmask;
-};
-
-void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
-void lustre_swab_hsm_state_set(struct hsm_state_set *hss);
-
-void lustre_swab_obd_statfs(struct obd_statfs *os);
-
-/* ost_body.data values for OST_BRW */
-
-#define OBD_BRW_READ	    0x01
-#define OBD_BRW_WRITE	   0x02
-#define OBD_BRW_RWMASK	  (OBD_BRW_READ | OBD_BRW_WRITE)
-#define OBD_BRW_SYNC	    0x08 /* this page is a part of synchronous
-				      * transfer and is not accounted in
-				      * the grant. */
-#define OBD_BRW_CHECK	   0x10
-#define OBD_BRW_FROM_GRANT      0x20 /* the osc manages this under llite */
-#define OBD_BRW_GRANTED	 0x40 /* the ost manages this */
-#define OBD_BRW_NOCACHE	 0x80 /* this page is a part of non-cached IO */
-#define OBD_BRW_NOQUOTA	0x100
-#define OBD_BRW_SRVLOCK	0x200 /* Client holds no lock over this page */
-#define OBD_BRW_ASYNC	  0x400 /* Server may delay commit to disk */
-#define OBD_BRW_MEMALLOC       0x800 /* Client runs in the "kswapd" context */
-#define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
-#define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
-
-#define OBD_OBJECT_EOF 0xffffffffffffffffULL
-
-#define OST_MIN_PRECREATE 32
-#define OST_MAX_PRECREATE 20000
-
-struct obd_ioobj {
-	struct ost_id	ioo_oid;	/* object ID, if multi-obj BRW */
-	__u32		ioo_max_brw;	/* low 16 bits were o_mode before 2.4,
-					 * now (PTLRPC_BULK_OPS_COUNT - 1) in
-					 * high 16 bits in 2.4 and later */
-	__u32		ioo_bufcnt;	/* number of niobufs for this object */
-};
-
-#define IOOBJ_MAX_BRW_BITS	16
-#define IOOBJ_TYPE_MASK		((1U << IOOBJ_MAX_BRW_BITS) - 1)
-#define ioobj_max_brw_get(ioo)	(((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
-#define ioobj_max_brw_set(ioo, num)					\
-do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
-
-void lustre_swab_obd_ioobj(struct obd_ioobj *ioo);
-
-/* multiple of 8 bytes => can array */
-struct niobuf_remote {
-	__u64 offset;
-	__u32 len;
-	__u32 flags;
-};
-
-void lustre_swab_niobuf_remote(struct niobuf_remote *nbr);
-
-/* lock value block communicated between the filter and llite */
-
-/* OST_LVB_ERR_INIT is needed because the return code in rc is
- * negative, i.e. because ((MASK + rc) & MASK) != MASK. */
-#define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
-#define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
-#define OST_LVB_IS_ERR(blocks)					  \
-	((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK)
-#define OST_LVB_SET_ERR(blocks, rc)				     \
-	do { blocks = OST_LVB_ERR_INIT + rc; } while (0)
-#define OST_LVB_GET_ERR(blocks)    (int)(blocks - OST_LVB_ERR_INIT)
-
-struct ost_lvb_v1 {
-	__u64		lvb_size;
-	__s64		lvb_mtime;
-	__s64		lvb_atime;
-	__s64		lvb_ctime;
-	__u64		lvb_blocks;
-};
-
-void lustre_swab_ost_lvb_v1(struct ost_lvb_v1 *lvb);
-
-struct ost_lvb {
-	__u64		lvb_size;
-	__s64		lvb_mtime;
-	__s64		lvb_atime;
-	__s64		lvb_ctime;
-	__u64		lvb_blocks;
-	__u32		lvb_mtime_ns;
-	__u32		lvb_atime_ns;
-	__u32		lvb_ctime_ns;
-	__u32		lvb_padding;
-};
-
-void lustre_swab_ost_lvb(struct ost_lvb *lvb);
-
-/*
- *   lquota data structures
- */
-
-#ifndef QUOTABLOCK_BITS
-#define QUOTABLOCK_BITS 10
-#endif
-
-#ifndef QUOTABLOCK_SIZE
-#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
-#endif
-
-#ifndef toqb
-#define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
-#endif
-
-/* The lquota_id structure is an union of all the possible identifier types that
- * can be used with quota, this includes:
- * - 64-bit user ID
- * - 64-bit group ID
- * - a FID which can be used for per-directory quota in the future */
-union lquota_id {
-	struct lu_fid	qid_fid; /* FID for per-directory quota */
-	__u64		qid_uid; /* user identifier */
-	__u64		qid_gid; /* group identifier */
-};
-
-/* quotactl management */
-struct obd_quotactl {
-	__u32			qc_cmd;
-	__u32			qc_type; /* see Q_* flag below */
-	__u32			qc_id;
-	__u32			qc_stat;
-	struct obd_dqinfo	qc_dqinfo;
-	struct obd_dqblk	qc_dqblk;
-};
-
-void lustre_swab_obd_quotactl(struct obd_quotactl *q);
-
-#define Q_QUOTACHECK	0x800100 /* deprecated as of 2.4 */
-#define Q_INITQUOTA	0x800101 /* deprecated as of 2.4  */
-#define Q_GETOINFO	0x800102 /* get obd quota info */
-#define Q_GETOQUOTA	0x800103 /* get obd quotas */
-#define Q_FINVALIDATE	0x800104 /* deprecated as of 2.4 */
-
-#define Q_COPY(out, in, member) (out)->member = (in)->member
-
-#define QCTL_COPY(out, in)		\
-do {					\
-	Q_COPY(out, in, qc_cmd);	\
-	Q_COPY(out, in, qc_type);	\
-	Q_COPY(out, in, qc_id);		\
-	Q_COPY(out, in, qc_stat);	\
-	Q_COPY(out, in, qc_dqinfo);	\
-	Q_COPY(out, in, qc_dqblk);	\
-} while (0)
-
-/* Body of quota request used for quota acquire/release RPCs between quota
- * master (aka QMT) and slaves (ak QSD). */
-struct quota_body {
-	struct lu_fid	qb_fid;     /* FID of global index packing the pool ID
-				      * and type (data or metadata) as well as
-				      * the quota type (user or group). */
-	union lquota_id	qb_id;      /* uid or gid or directory FID */
-	__u32		qb_flags;   /* see below */
-	__u32		qb_padding;
-	__u64		qb_count;   /* acquire/release count (kbytes/inodes) */
-	__u64		qb_usage;   /* current slave usage (kbytes/inodes) */
-	__u64		qb_slv_ver; /* slave index file version */
-	struct lustre_handle	qb_lockh;     /* per-ID lock handle */
-	struct lustre_handle	qb_glb_lockh; /* global lock handle */
-	__u64		qb_padding1[4];
-};
-
-/* When the quota_body is used in the reply of quota global intent
- * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */
-#define qb_slv_fid	qb_fid
-/* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
- * quota reply */
-#define qb_qunit	qb_usage
-
-#define QUOTA_DQACQ_FL_ACQ	0x1  /* acquire quota */
-#define QUOTA_DQACQ_FL_PREACQ	0x2  /* pre-acquire */
-#define QUOTA_DQACQ_FL_REL	0x4  /* release quota */
-#define QUOTA_DQACQ_FL_REPORT	0x8  /* report usage */
-
-void lustre_swab_quota_body(struct quota_body *b);
-
-/* Quota types currently supported */
-enum {
-	LQUOTA_TYPE_USR	= 0x00, /* maps to USRQUOTA */
-	LQUOTA_TYPE_GRP	= 0x01, /* maps to GRPQUOTA */
-	LQUOTA_TYPE_MAX
-};
-
-/* There are 2 different resource types on which a quota limit can be enforced:
- * - inodes on the MDTs
- * - blocks on the OSTs */
-enum {
-	LQUOTA_RES_MD		= 0x01, /* skip 0 to avoid null oid in FID */
-	LQUOTA_RES_DT		= 0x02,
-	LQUOTA_LAST_RES,
-	LQUOTA_FIRST_RES	= LQUOTA_RES_MD
-};
-#define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
-
-/*
- * Space accounting support
- * Format of an accounting record, providing disk usage information for a given
- * user or group
- */
-struct lquota_acct_rec { /* 16 bytes */
-	__u64 bspace;  /* current space in use */
-	__u64 ispace;  /* current # inodes in use */
-};
-
-/*
- * Global quota index support
- * Format of a global record, providing global quota settings for a given quota
- * identifier
- */
-struct lquota_glb_rec { /* 32 bytes */
-	__u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
-	__u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
-	__u64 qbr_time;      /* grace time, in seconds */
-	__u64 qbr_granted;   /* how much is granted to slaves, in #inodes or
-			      * kbytes */
-};
-
-/*
- * Slave index support
- * Format of a slave record, recording how much space is granted to a given
- * slave
- */
-struct lquota_slv_rec { /* 8 bytes */
-	__u64 qsr_granted; /* space granted to the slave for the key=ID,
-			    * in #inodes or kbytes */
-};
-
-/* Data structures associated with the quota locks */
-
-/* Glimpse descriptor used for the index & per-ID quota locks */
-struct ldlm_gl_lquota_desc {
-	union lquota_id	gl_id;    /* quota ID subject to the glimpse */
-	__u64		gl_flags; /* see LQUOTA_FL* below */
-	__u64		gl_ver;   /* new index version */
-	__u64		gl_hardlimit; /* new hardlimit or qunit value */
-	__u64		gl_softlimit; /* new softlimit */
-	__u64		gl_time;
-	__u64		gl_pad2;
-};
-#define gl_qunit	gl_hardlimit /* current qunit value used when
-				      * glimpsing per-ID quota locks */
-
-/* quota glimpse flags */
-#define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
-
-/* LVB used with quota (global and per-ID) locks */
-struct lquota_lvb {
-	__u64	lvb_flags;	/* see LQUOTA_FL* above */
-	__u64	lvb_id_may_rel; /* space that might be released later */
-	__u64	lvb_id_rel;     /* space released by the slave for this ID */
-	__u64	lvb_id_qunit;   /* current qunit value */
-	__u64	lvb_pad1;
-};
-
-void lustre_swab_lquota_lvb(struct lquota_lvb *lvb);
-
-/* LVB used with global quota lock */
-#define lvb_glb_ver  lvb_id_may_rel /* current version of the global index */
-
-/* op codes */
-typedef enum {
-	QUOTA_DQACQ	= 601,
-	QUOTA_DQREL	= 602,
-	QUOTA_LAST_OPC
-} quota_cmd_t;
-#define QUOTA_FIRST_OPC	QUOTA_DQACQ
-
-/*
- *   MDS REQ RECORDS
- */
-
-/* opcodes */
-typedef enum {
-	MDS_GETATTR		= 33,
-	MDS_GETATTR_NAME	= 34,
-	MDS_CLOSE		= 35,
-	MDS_REINT		= 36,
-	MDS_READPAGE		= 37,
-	MDS_CONNECT		= 38,
-	MDS_DISCONNECT		= 39,
-	MDS_GETSTATUS		= 40,
-	MDS_STATFS		= 41,
-	MDS_PIN			= 42,
-	MDS_UNPIN		= 43,
-	MDS_SYNC		= 44,
-	MDS_DONE_WRITING	= 45,
-	MDS_SET_INFO		= 46,
-	MDS_QUOTACHECK		= 47,
-	MDS_QUOTACTL		= 48,
-	MDS_GETXATTR		= 49,
-	MDS_SETXATTR		= 50, /* obsolete, now it's MDS_REINT op */
-	MDS_WRITEPAGE		= 51,
-	MDS_IS_SUBDIR		= 52,
-	MDS_GET_INFO		= 53,
-	MDS_HSM_STATE_GET	= 54,
-	MDS_HSM_STATE_SET	= 55,
-	MDS_HSM_ACTION		= 56,
-	MDS_HSM_PROGRESS	= 57,
-	MDS_HSM_REQUEST		= 58,
-	MDS_HSM_CT_REGISTER	= 59,
-	MDS_HSM_CT_UNREGISTER	= 60,
-	MDS_SWAP_LAYOUTS	= 61,
-	MDS_LAST_OPC
-} mds_cmd_t;
-
-#define MDS_FIRST_OPC    MDS_GETATTR
-
-
-/* opcodes for object update */
-typedef enum {
-	UPDATE_OBJ	= 1000,
-	UPDATE_LAST_OPC
-} update_cmd_t;
-
-#define UPDATE_FIRST_OPC    UPDATE_OBJ
-
-/*
- * Do not exceed 63
- */
-
-typedef enum {
-	REINT_SETATTR  = 1,
-	REINT_CREATE   = 2,
-	REINT_LINK     = 3,
-	REINT_UNLINK   = 4,
-	REINT_RENAME   = 5,
-	REINT_OPEN     = 6,
-	REINT_SETXATTR = 7,
-	REINT_RMENTRY  = 8,
-//      REINT_WRITE    = 9,
-	REINT_MAX
-} mds_reint_t, mdt_reint_t;
-
-void lustre_swab_generic_32s(__u32 *val);
-
-/* the disposition of the intent outlines what was executed */
-#define DISP_IT_EXECD	0x00000001
-#define DISP_LOOKUP_EXECD    0x00000002
-#define DISP_LOOKUP_NEG      0x00000004
-#define DISP_LOOKUP_POS      0x00000008
-#define DISP_OPEN_CREATE     0x00000010
-#define DISP_OPEN_OPEN       0x00000020
-#define DISP_ENQ_COMPLETE    0x00400000		/* obsolete and unused */
-#define DISP_ENQ_OPEN_REF    0x00800000
-#define DISP_ENQ_CREATE_REF  0x01000000
-#define DISP_OPEN_LOCK       0x02000000
-#define DISP_OPEN_LEASE      0x04000000
-#define DISP_OPEN_STRIPE     0x08000000
-
-/* INODE LOCK PARTS */
-#define MDS_INODELOCK_LOOKUP 0x000001	/* For namespace, dentry etc, and also
-					 * was used to protect permission (mode,
-					 * owner, group etc) before 2.4. */
-#define MDS_INODELOCK_UPDATE 0x000002	/* size, links, timestamps */
-#define MDS_INODELOCK_OPEN   0x000004	/* For opened files */
-#define MDS_INODELOCK_LAYOUT 0x000008	/* for layout */
-
-/* The PERM bit is added int 2.4, and it is used to protect permission(mode,
- * owner, group, acl etc), so to separate the permission from LOOKUP lock.
- * Because for remote directories(in DNE), these locks will be granted by
- * different MDTs(different ldlm namespace).
- *
- * For local directory, MDT will always grant UPDATE_LOCK|PERM_LOCK together.
- * For Remote directory, the master MDT, where the remote directory is, will
- * grant UPDATE_LOCK|PERM_LOCK, and the remote MDT, where the name entry is,
- * will grant LOOKUP_LOCK. */
-#define MDS_INODELOCK_PERM   0x000010
-#define MDS_INODELOCK_XATTR  0x000020	/* extended attributes */
-
-#define MDS_INODELOCK_MAXSHIFT 5
-/* This FULL lock is useful to take on unlink sort of operations */
-#define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
-
-void lustre_swab_ll_fid(struct ll_fid *fid);
-
-/* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
- * but was moved into name[1] along with the OID to avoid consuming the
- * name[2,3] fields that need to be used for the quota id (also a FID). */
-enum {
-	LUSTRE_RES_ID_SEQ_OFF = 0,
-	LUSTRE_RES_ID_VER_OID_OFF = 1,
-	LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */
-	LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2,
-	LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3,
-	LUSTRE_RES_ID_HSH_OFF = 3
-};
-
-#define MDS_STATUS_CONN 1
-#define MDS_STATUS_LOV 2
-
-/* mdt_thread_info.mti_flags. */
-enum md_op_flags {
-	/* The flag indicates Size-on-MDS attributes are changed. */
-	MF_SOM_CHANGE	   = (1 << 0),
-	/* Flags indicates an epoch opens or closes. */
-	MF_EPOCH_OPEN	   = (1 << 1),
-	MF_EPOCH_CLOSE	  = (1 << 2),
-	MF_MDC_CANCEL_FID1      = (1 << 3),
-	MF_MDC_CANCEL_FID2      = (1 << 4),
-	MF_MDC_CANCEL_FID3      = (1 << 5),
-	MF_MDC_CANCEL_FID4      = (1 << 6),
-	/* There is a pending attribute update. */
-	MF_SOM_AU	       = (1 << 7),
-	/* Cancel OST locks while getattr OST attributes. */
-	MF_GETATTR_LOCK	 = (1 << 8),
-	MF_GET_MDT_IDX	  = (1 << 9),
-};
-
-#define MF_SOM_LOCAL_FLAGS (MF_SOM_CHANGE | MF_EPOCH_OPEN | MF_EPOCH_CLOSE)
-
-#define LUSTRE_BFLAG_UNCOMMITTED_WRITES   0x1
-
-/* these should be identical to their EXT4_*_FL counterparts, they are
- * redefined here only to avoid dragging in fs/ext4/ext4.h */
-#define LUSTRE_SYNC_FL	 0x00000008 /* Synchronous updates */
-#define LUSTRE_IMMUTABLE_FL    0x00000010 /* Immutable file */
-#define LUSTRE_APPEND_FL       0x00000020 /* writes to file may only append */
-#define LUSTRE_NOATIME_FL      0x00000080 /* do not update atime */
-#define LUSTRE_DIRSYNC_FL      0x00010000 /* dirsync behaviour (dir only) */
-
-/* Convert wire LUSTRE_*_FL to corresponding client local VFS S_* values
- * for the client inode i_flags.  The LUSTRE_*_FL are the Lustre wire
- * protocol equivalents of LDISKFS_*_FL values stored on disk, while
- * the S_* flags are kernel-internal values that change between kernel
- * versions.  These flags are set/cleared via FSFILT_IOC_{GET,SET}_FLAGS.
- * See b=16526 for a full history. */
-static inline int ll_ext_to_inode_flags(int flags)
-{
-	return (((flags & LUSTRE_SYNC_FL)      ? S_SYNC      : 0) |
-		((flags & LUSTRE_NOATIME_FL)   ? S_NOATIME   : 0) |
-		((flags & LUSTRE_APPEND_FL)    ? S_APPEND    : 0) |
-#if defined(S_DIRSYNC)
-		((flags & LUSTRE_DIRSYNC_FL)   ? S_DIRSYNC   : 0) |
-#endif
-		((flags & LUSTRE_IMMUTABLE_FL) ? S_IMMUTABLE : 0));
-}
-
-static inline int ll_inode_to_ext_flags(int iflags)
-{
-	return (((iflags & S_SYNC)      ? LUSTRE_SYNC_FL      : 0) |
-		((iflags & S_NOATIME)   ? LUSTRE_NOATIME_FL   : 0) |
-		((iflags & S_APPEND)    ? LUSTRE_APPEND_FL    : 0) |
-#if defined(S_DIRSYNC)
-		((iflags & S_DIRSYNC)   ? LUSTRE_DIRSYNC_FL   : 0) |
-#endif
-		((iflags & S_IMMUTABLE) ? LUSTRE_IMMUTABLE_FL : 0));
-}
-
-/* 64 possible states */
-enum md_transient_state {
-	MS_RESTORE	= (1 << 0),	/* restore is running */
-};
-
-struct mdt_body {
-	struct lu_fid  fid1;
-	struct lu_fid  fid2;
-	struct lustre_handle handle;
-	__u64	  valid;
-	__u64	  size;   /* Offset, in the case of MDS_READPAGE */
-	__s64	  mtime;
-	__s64	  atime;
-	__s64	  ctime;
-	__u64	  blocks; /* XID, in the case of MDS_READPAGE */
-	__u64	  ioepoch;
-	__u64	       t_state; /* transient file state defined in
-				 * enum md_transient_state
-				 * was "ino" until 2.4.0 */
-	__u32	  fsuid;
-	__u32	  fsgid;
-	__u32	  capability;
-	__u32	  mode;
-	__u32	  uid;
-	__u32	  gid;
-	__u32	  flags; /* from vfs for pin/unpin, LUSTRE_BFLAG close */
-	__u32	  rdev;
-	__u32	  nlink; /* #bytes to read in the case of MDS_READPAGE */
-	__u32	       unused2; /* was "generation" until 2.4.0 */
-	__u32	  suppgid;
-	__u32	  eadatasize;
-	__u32	  aclsize;
-	__u32	  max_mdsize;
-	__u32	  max_cookiesize;
-	__u32	  uid_h; /* high 32-bits of uid, for FUID */
-	__u32	  gid_h; /* high 32-bits of gid, for FUID */
-	__u32	  padding_5; /* also fix lustre_swab_mdt_body */
-	__u64	  padding_6;
-	__u64	  padding_7;
-	__u64	  padding_8;
-	__u64	  padding_9;
-	__u64	  padding_10;
-}; /* 216 */
-
-void lustre_swab_mdt_body(struct mdt_body *b);
-
-struct mdt_ioepoch {
-	struct lustre_handle handle;
-	__u64  ioepoch;
-	__u32  flags;
-	__u32  padding;
-};
-
-void lustre_swab_mdt_ioepoch(struct mdt_ioepoch *b);
-
-/* permissions for md_perm.mp_perm */
-enum {
-	CFS_SETUID_PERM = 0x01,
-	CFS_SETGID_PERM = 0x02,
-	CFS_SETGRP_PERM = 0x04,
-	CFS_RMTACL_PERM = 0x08,
-	CFS_RMTOWN_PERM = 0x10
-};
-
-/* inode access permission for remote user, the inode info are omitted,
- * for client knows them. */
-struct mdt_remote_perm {
-	__u32	   rp_uid;
-	__u32	   rp_gid;
-	__u32	   rp_fsuid;
-	__u32	   rp_fsuid_h;
-	__u32	   rp_fsgid;
-	__u32	   rp_fsgid_h;
-	__u32	   rp_access_perm; /* MAY_READ/WRITE/EXEC */
-	__u32	   rp_padding;
-};
-
-void lustre_swab_mdt_remote_perm(struct mdt_remote_perm *p);
-
-struct mdt_rec_setattr {
-	__u32	   sa_opcode;
-	__u32	   sa_cap;
-	__u32	   sa_fsuid;
-	__u32	   sa_fsuid_h;
-	__u32	   sa_fsgid;
-	__u32	   sa_fsgid_h;
-	__u32	   sa_suppgid;
-	__u32	   sa_suppgid_h;
-	__u32	   sa_padding_1;
-	__u32	   sa_padding_1_h;
-	struct lu_fid   sa_fid;
-	__u64	   sa_valid;
-	__u32	   sa_uid;
-	__u32	   sa_gid;
-	__u64	   sa_size;
-	__u64	   sa_blocks;
-	__s64	   sa_mtime;
-	__s64	   sa_atime;
-	__s64	   sa_ctime;
-	__u32	   sa_attr_flags;
-	__u32	   sa_mode;
-	__u32	   sa_bias;      /* some operation flags */
-	__u32	   sa_padding_3;
-	__u32	   sa_padding_4;
-	__u32	   sa_padding_5;
-};
-
-void lustre_swab_mdt_rec_setattr(struct mdt_rec_setattr *sa);
-
-/*
- * Attribute flags used in mdt_rec_setattr::sa_valid.
- * The kernel's #defines for ATTR_* should not be used over the network
- * since the client and MDS may run different kernels (see bug 13828)
- * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
- */
-#define MDS_ATTR_MODE	  0x1ULL /* = 1 */
-#define MDS_ATTR_UID	   0x2ULL /* = 2 */
-#define MDS_ATTR_GID	   0x4ULL /* = 4 */
-#define MDS_ATTR_SIZE	  0x8ULL /* = 8 */
-#define MDS_ATTR_ATIME	0x10ULL /* = 16 */
-#define MDS_ATTR_MTIME	0x20ULL /* = 32 */
-#define MDS_ATTR_CTIME	0x40ULL /* = 64 */
-#define MDS_ATTR_ATIME_SET    0x80ULL /* = 128 */
-#define MDS_ATTR_MTIME_SET   0x100ULL /* = 256 */
-#define MDS_ATTR_FORCE       0x200ULL /* = 512, Not a change, but a change it */
-#define MDS_ATTR_ATTR_FLAG   0x400ULL /* = 1024 */
-#define MDS_ATTR_KILL_SUID   0x800ULL /* = 2048 */
-#define MDS_ATTR_KILL_SGID  0x1000ULL /* = 4096 */
-#define MDS_ATTR_CTIME_SET  0x2000ULL /* = 8192 */
-#define MDS_ATTR_FROM_OPEN  0x4000ULL /* = 16384, called from open path, ie O_TRUNC */
-#define MDS_ATTR_BLOCKS     0x8000ULL /* = 32768 */
-
-#ifndef FMODE_READ
-#define FMODE_READ	       00000001
-#define FMODE_WRITE	      00000002
-#endif
-
-#define MDS_FMODE_CLOSED	 00000000
-#define MDS_FMODE_EXEC	   00000004
-/* IO Epoch is opened on a closed file. */
-#define MDS_FMODE_EPOCH	  01000000
-/* IO Epoch is opened on a file truncate. */
-#define MDS_FMODE_TRUNC	  02000000
-/* Size-on-MDS Attribute Update is pending. */
-#define MDS_FMODE_SOM	    04000000
-
-#define MDS_OPEN_CREATED	 00000010
-#define MDS_OPEN_CROSS	   00000020
-
-#define MDS_OPEN_CREAT	   00000100
-#define MDS_OPEN_EXCL	    00000200
-#define MDS_OPEN_TRUNC	   00001000
-#define MDS_OPEN_APPEND	  00002000
-#define MDS_OPEN_SYNC	    00010000
-#define MDS_OPEN_DIRECTORY       00200000
-
-#define MDS_OPEN_BY_FID		040000000 /* open_by_fid for known object */
-#define MDS_OPEN_DELAY_CREATE  0100000000 /* delay initial object create */
-#define MDS_OPEN_OWNEROVERRIDE 0200000000 /* NFSD rw-reopen ro file for owner */
-#define MDS_OPEN_JOIN_FILE     0400000000 /* open for join file.
-					   * We do not support JOIN FILE
-					   * anymore, reserve this flags
-					   * just for preventing such bit
-					   * to be reused. */
-
-#define MDS_OPEN_LOCK	 04000000000 /* This open requires open lock */
-#define MDS_OPEN_HAS_EA      010000000000 /* specify object create pattern */
-#define MDS_OPEN_HAS_OBJS    020000000000 /* Just set the EA the obj exist */
-#define MDS_OPEN_NORESTORE  0100000000000ULL /* Do not restore file at open */
-#define MDS_OPEN_NEWSTRIPE  0200000000000ULL /* New stripe needed (restripe or
-					      * hsm restore) */
-#define MDS_OPEN_VOLATILE   0400000000000ULL /* File is volatile = created
-						unlinked */
-#define MDS_OPEN_LEASE	   01000000000000ULL /* Open the file and grant lease
-					      * delegation, succeed if it's not
-					      * being opened with conflict mode.
-					      */
-#define MDS_OPEN_RELEASE   02000000000000ULL /* Open the file for HSM release */
-
-/* permission for create non-directory file */
-#define MAY_CREATE      (1 << 7)
-/* permission for create directory file */
-#define MAY_LINK	(1 << 8)
-/* permission for delete from the directory */
-#define MAY_UNLINK      (1 << 9)
-/* source's permission for rename */
-#define MAY_RENAME_SRC  (1 << 10)
-/* target's permission for rename */
-#define MAY_RENAME_TAR  (1 << 11)
-/* part (parent's) VTX permission check */
-#define MAY_VTX_PART    (1 << 12)
-/* full VTX permission check */
-#define MAY_VTX_FULL    (1 << 13)
-/* lfs rgetfacl permission check */
-#define MAY_RGETFACL    (1 << 14)
-
-enum mds_op_bias {
-	MDS_CHECK_SPLIT		= 1 << 0,
-	MDS_CROSS_REF		= 1 << 1,
-	MDS_VTX_BYPASS		= 1 << 2,
-	MDS_PERM_BYPASS		= 1 << 3,
-	MDS_SOM			= 1 << 4,
-	MDS_QUOTA_IGNORE	= 1 << 5,
-	MDS_CLOSE_CLEANUP	= 1 << 6,
-	MDS_KEEP_ORPHAN		= 1 << 7,
-	MDS_RECOV_OPEN		= 1 << 8,
-	MDS_DATA_MODIFIED	= 1 << 9,
-	MDS_CREATE_VOLATILE	= 1 << 10,
-	MDS_OWNEROVERRIDE	= 1 << 11,
-	MDS_HSM_RELEASE		= 1 << 12,
-};
-
-/* instance of mdt_reint_rec */
-struct mdt_rec_create {
-	__u32	   cr_opcode;
-	__u32	   cr_cap;
-	__u32	   cr_fsuid;
-	__u32	   cr_fsuid_h;
-	__u32	   cr_fsgid;
-	__u32	   cr_fsgid_h;
-	__u32	   cr_suppgid1;
-	__u32	   cr_suppgid1_h;
-	__u32	   cr_suppgid2;
-	__u32	   cr_suppgid2_h;
-	struct lu_fid   cr_fid1;
-	struct lu_fid   cr_fid2;
-	struct lustre_handle cr_old_handle; /* handle in case of open replay */
-	__s64	   cr_time;
-	__u64	   cr_rdev;
-	__u64	   cr_ioepoch;
-	__u64	   cr_padding_1;   /* rr_blocks */
-	__u32	   cr_mode;
-	__u32	   cr_bias;
-	/* use of helpers set/get_mrc_cr_flags() is needed to access
-	 * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
-	 * extend cr_flags size without breaking 1.8 compat */
-	__u32	   cr_flags_l;     /* for use with open, low  32 bits  */
-	__u32	   cr_flags_h;     /* for use with open, high 32 bits */
-	__u32	   cr_umask;       /* umask for create */
-	__u32	   cr_padding_4;   /* rr_padding_4 */
-};
-
-static inline void set_mrc_cr_flags(struct mdt_rec_create *mrc, __u64 flags)
-{
-	mrc->cr_flags_l = (__u32)(flags & 0xFFFFFFFFUll);
-	mrc->cr_flags_h = (__u32)(flags >> 32);
-}
-
-static inline __u64 get_mrc_cr_flags(struct mdt_rec_create *mrc)
-{
-	return ((__u64)(mrc->cr_flags_l) | ((__u64)mrc->cr_flags_h << 32));
-}
-
-/* instance of mdt_reint_rec */
-struct mdt_rec_link {
-	__u32	   lk_opcode;
-	__u32	   lk_cap;
-	__u32	   lk_fsuid;
-	__u32	   lk_fsuid_h;
-	__u32	   lk_fsgid;
-	__u32	   lk_fsgid_h;
-	__u32	   lk_suppgid1;
-	__u32	   lk_suppgid1_h;
-	__u32	   lk_suppgid2;
-	__u32	   lk_suppgid2_h;
-	struct lu_fid   lk_fid1;
-	struct lu_fid   lk_fid2;
-	__s64	   lk_time;
-	__u64	   lk_padding_1;   /* rr_atime */
-	__u64	   lk_padding_2;   /* rr_ctime */
-	__u64	   lk_padding_3;   /* rr_size */
-	__u64	   lk_padding_4;   /* rr_blocks */
-	__u32	   lk_bias;
-	__u32	   lk_padding_5;   /* rr_mode */
-	__u32	   lk_padding_6;   /* rr_flags */
-	__u32	   lk_padding_7;   /* rr_padding_2 */
-	__u32	   lk_padding_8;   /* rr_padding_3 */
-	__u32	   lk_padding_9;   /* rr_padding_4 */
-};
-
-/* instance of mdt_reint_rec */
-struct mdt_rec_unlink {
-	__u32	   ul_opcode;
-	__u32	   ul_cap;
-	__u32	   ul_fsuid;
-	__u32	   ul_fsuid_h;
-	__u32	   ul_fsgid;
-	__u32	   ul_fsgid_h;
-	__u32	   ul_suppgid1;
-	__u32	   ul_suppgid1_h;
-	__u32	   ul_suppgid2;
-	__u32	   ul_suppgid2_h;
-	struct lu_fid   ul_fid1;
-	struct lu_fid   ul_fid2;
-	__s64	   ul_time;
-	__u64	   ul_padding_2;   /* rr_atime */
-	__u64	   ul_padding_3;   /* rr_ctime */
-	__u64	   ul_padding_4;   /* rr_size */
-	__u64	   ul_padding_5;   /* rr_blocks */
-	__u32	   ul_bias;
-	__u32	   ul_mode;
-	__u32	   ul_padding_6;   /* rr_flags */
-	__u32	   ul_padding_7;   /* rr_padding_2 */
-	__u32	   ul_padding_8;   /* rr_padding_3 */
-	__u32	   ul_padding_9;   /* rr_padding_4 */
-};
-
-/* instance of mdt_reint_rec */
-struct mdt_rec_rename {
-	__u32	   rn_opcode;
-	__u32	   rn_cap;
-	__u32	   rn_fsuid;
-	__u32	   rn_fsuid_h;
-	__u32	   rn_fsgid;
-	__u32	   rn_fsgid_h;
-	__u32	   rn_suppgid1;
-	__u32	   rn_suppgid1_h;
-	__u32	   rn_suppgid2;
-	__u32	   rn_suppgid2_h;
-	struct lu_fid   rn_fid1;
-	struct lu_fid   rn_fid2;
-	__s64	   rn_time;
-	__u64	   rn_padding_1;   /* rr_atime */
-	__u64	   rn_padding_2;   /* rr_ctime */
-	__u64	   rn_padding_3;   /* rr_size */
-	__u64	   rn_padding_4;   /* rr_blocks */
-	__u32	   rn_bias;	/* some operation flags */
-	__u32	   rn_mode;	/* cross-ref rename has mode */
-	__u32	   rn_padding_5;   /* rr_flags */
-	__u32	   rn_padding_6;   /* rr_padding_2 */
-	__u32	   rn_padding_7;   /* rr_padding_3 */
-	__u32	   rn_padding_8;   /* rr_padding_4 */
-};
-
-/* instance of mdt_reint_rec */
-struct mdt_rec_setxattr {
-	__u32	   sx_opcode;
-	__u32	   sx_cap;
-	__u32	   sx_fsuid;
-	__u32	   sx_fsuid_h;
-	__u32	   sx_fsgid;
-	__u32	   sx_fsgid_h;
-	__u32	   sx_suppgid1;
-	__u32	   sx_suppgid1_h;
-	__u32	   sx_suppgid2;
-	__u32	   sx_suppgid2_h;
-	struct lu_fid   sx_fid;
-	__u64	   sx_padding_1;   /* These three are rr_fid2 */
-	__u32	   sx_padding_2;
-	__u32	   sx_padding_3;
-	__u64	   sx_valid;
-	__s64	   sx_time;
-	__u64	   sx_padding_5;   /* rr_ctime */
-	__u64	   sx_padding_6;   /* rr_size */
-	__u64	   sx_padding_7;   /* rr_blocks */
-	__u32	   sx_size;
-	__u32	   sx_flags;
-	__u32	   sx_padding_8;   /* rr_flags */
-	__u32	   sx_padding_9;   /* rr_padding_2 */
-	__u32	   sx_padding_10;  /* rr_padding_3 */
-	__u32	   sx_padding_11;  /* rr_padding_4 */
-};
-
-/*
- * mdt_rec_reint is the template for all mdt_reint_xxx structures.
- * Do NOT change the size of various members, otherwise the value
- * will be broken in lustre_swab_mdt_rec_reint().
- *
- * If you add new members in other mdt_reint_xxx structures and need to use the
- * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also.
- */
-struct mdt_rec_reint {
-	__u32	   rr_opcode;
-	__u32	   rr_cap;
-	__u32	   rr_fsuid;
-	__u32	   rr_fsuid_h;
-	__u32	   rr_fsgid;
-	__u32	   rr_fsgid_h;
-	__u32	   rr_suppgid1;
-	__u32	   rr_suppgid1_h;
-	__u32	   rr_suppgid2;
-	__u32	   rr_suppgid2_h;
-	struct lu_fid   rr_fid1;
-	struct lu_fid   rr_fid2;
-	__s64	   rr_mtime;
-	__s64	   rr_atime;
-	__s64	   rr_ctime;
-	__u64	   rr_size;
-	__u64	   rr_blocks;
-	__u32	   rr_bias;
-	__u32	   rr_mode;
-	__u32	   rr_flags;
-	__u32	   rr_flags_h;
-	__u32	   rr_umask;
-	__u32	   rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
-};
-
-void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr);
-
-struct lmv_desc {
-	__u32 ld_tgt_count;		/* how many MDS's */
-	__u32 ld_active_tgt_count;	 /* how many active */
-	__u32 ld_default_stripe_count;     /* how many objects are used */
-	__u32 ld_pattern;		  /* default MEA_MAGIC_* */
-	__u64 ld_default_hash_size;
-	__u64 ld_padding_1;		/* also fix lustre_swab_lmv_desc */
-	__u32 ld_padding_2;		/* also fix lustre_swab_lmv_desc */
-	__u32 ld_qos_maxage;	       /* in second */
-	__u32 ld_padding_3;		/* also fix lustre_swab_lmv_desc */
-	__u32 ld_padding_4;		/* also fix lustre_swab_lmv_desc */
-	struct obd_uuid ld_uuid;
-};
-
-void lustre_swab_lmv_desc(struct lmv_desc *ld);
-
-/* TODO: lmv_stripe_md should contain mds capabilities for all slave fids */
-struct lmv_stripe_md {
-	__u32	 mea_magic;
-	__u32	 mea_count;
-	__u32	 mea_master;
-	__u32	 mea_padding;
-	char	  mea_pool_name[LOV_MAXPOOLNAME];
-	struct lu_fid mea_ids[0];
-};
-
-void lustre_swab_lmv_stripe_md(struct lmv_stripe_md *mea);
-
-/* lmv structures */
-#define MEA_MAGIC_LAST_CHAR      0xb2221ca1
-#define MEA_MAGIC_ALL_CHARS      0xb222a11c
-#define MEA_MAGIC_HASH_SEGMENT   0xb222a11b
-
-#define MAX_HASH_SIZE_32	 0x7fffffffUL
-#define MAX_HASH_SIZE	    0x7fffffffffffffffULL
-#define MAX_HASH_HIGHEST_BIT     0x1000000000000000ULL
-
-enum fld_rpc_opc {
-	FLD_QUERY		       = 900,
-	FLD_LAST_OPC,
-	FLD_FIRST_OPC		   = FLD_QUERY
-};
-
-enum seq_rpc_opc {
-	SEQ_QUERY		       = 700,
-	SEQ_LAST_OPC,
-	SEQ_FIRST_OPC		   = SEQ_QUERY
-};
-
-enum seq_op {
-	SEQ_ALLOC_SUPER = 0,
-	SEQ_ALLOC_META = 1
-};
-
-/*
- *  LOV data structures
- */
-
-#define LOV_MAX_UUID_BUFFER_SIZE  8192
-/* The size of the buffer the lov/mdc reserves for the
- * array of UUIDs returned by the MDS.  With the current
- * protocol, this will limit the max number of OSTs per LOV */
-
-#define LOV_DESC_MAGIC 0xB0CCDE5C
-#define LOV_DESC_QOS_MAXAGE_DEFAULT 5  /* Seconds */
-#define LOV_DESC_STRIPE_SIZE_DEFAULT (1 << LNET_MTU_BITS)
-
-/* LOV settings descriptor (should only contain static info) */
-struct lov_desc {
-	__u32 ld_tgt_count;		/* how many OBD's */
-	__u32 ld_active_tgt_count;	 /* how many active */
-	__u32 ld_default_stripe_count;     /* how many objects are used */
-	__u32 ld_pattern;		  /* default PATTERN_RAID0 */
-	__u64 ld_default_stripe_size;      /* in bytes */
-	__u64 ld_default_stripe_offset;    /* in bytes */
-	__u32 ld_padding_0;		/* unused */
-	__u32 ld_qos_maxage;	       /* in second */
-	__u32 ld_padding_1;		/* also fix lustre_swab_lov_desc */
-	__u32 ld_padding_2;		/* also fix lustre_swab_lov_desc */
-	struct obd_uuid ld_uuid;
-};
-
-#define ld_magic ld_active_tgt_count       /* for swabbing from llogs */
-
-void lustre_swab_lov_desc(struct lov_desc *ld);
-
-/*
- *   LDLM requests:
- */
-/* opcodes -- MUST be distinct from OST/MDS opcodes */
-typedef enum {
-	LDLM_ENQUEUE     = 101,
-	LDLM_CONVERT     = 102,
-	LDLM_CANCEL      = 103,
-	LDLM_BL_CALLBACK = 104,
-	LDLM_CP_CALLBACK = 105,
-	LDLM_GL_CALLBACK = 106,
-	LDLM_SET_INFO    = 107,
-	LDLM_LAST_OPC
-} ldlm_cmd_t;
-#define LDLM_FIRST_OPC LDLM_ENQUEUE
-
-#define RES_NAME_SIZE 4
-struct ldlm_res_id {
-	__u64 name[RES_NAME_SIZE];
-};
-
-#define DLDLMRES	"[%#llx:%#llx:%#llx].%llx"
-#define PLDLMRES(res)	(res)->lr_name.name[0], (res)->lr_name.name[1], \
-			(res)->lr_name.name[2], (res)->lr_name.name[3]
-
-void lustre_swab_ldlm_res_id(struct ldlm_res_id *id);
-
-static inline int ldlm_res_eq(const struct ldlm_res_id *res0,
-			      const struct ldlm_res_id *res1)
-{
-	return !memcmp(res0, res1, sizeof(*res0));
-}
-
-/* lock types */
-typedef enum {
-	LCK_MINMODE = 0,
-	LCK_EX      = 1,
-	LCK_PW      = 2,
-	LCK_PR      = 4,
-	LCK_CW      = 8,
-	LCK_CR      = 16,
-	LCK_NL      = 32,
-	LCK_GROUP   = 64,
-	LCK_COS     = 128,
-	LCK_MAXMODE
-} ldlm_mode_t;
-
-#define LCK_MODE_NUM    8
-
-typedef enum {
-	LDLM_PLAIN     = 10,
-	LDLM_EXTENT    = 11,
-	LDLM_FLOCK     = 12,
-	LDLM_IBITS     = 13,
-	LDLM_MAX_TYPE
-} ldlm_type_t;
-
-#define LDLM_MIN_TYPE LDLM_PLAIN
-
-struct ldlm_extent {
-	__u64 start;
-	__u64 end;
-	__u64 gid;
-};
-
-static inline int ldlm_extent_overlap(struct ldlm_extent *ex1,
-				      struct ldlm_extent *ex2)
-{
-	return (ex1->start <= ex2->end) && (ex2->start <= ex1->end);
-}
-
-/* check if @ex1 contains @ex2 */
-static inline int ldlm_extent_contain(struct ldlm_extent *ex1,
-				      struct ldlm_extent *ex2)
-{
-	return (ex1->start <= ex2->start) && (ex1->end >= ex2->end);
-}
-
-struct ldlm_inodebits {
-	__u64 bits;
-};
-
-struct ldlm_flock_wire {
-	__u64 lfw_start;
-	__u64 lfw_end;
-	__u64 lfw_owner;
-	__u32 lfw_padding;
-	__u32 lfw_pid;
-};
-
-/* it's important that the fields of the ldlm_extent structure match
- * the first fields of the ldlm_flock structure because there is only
- * one ldlm_swab routine to process the ldlm_policy_data_t union. if
- * this ever changes we will need to swab the union differently based
- * on the resource type. */
-
-typedef union {
-	struct ldlm_extent l_extent;
-	struct ldlm_flock_wire l_flock;
-	struct ldlm_inodebits l_inodebits;
-} ldlm_wire_policy_data_t;
-
-void lustre_swab_ldlm_policy_data(ldlm_wire_policy_data_t *d);
-
-union ldlm_gl_desc {
-	struct ldlm_gl_lquota_desc	lquota_desc;
-};
-
-void lustre_swab_gl_desc(union ldlm_gl_desc *);
-
-struct ldlm_intent {
-	__u64 opc;
-};
-
-void lustre_swab_ldlm_intent(struct ldlm_intent *i);
-
-struct ldlm_resource_desc {
-	ldlm_type_t lr_type;
-	__u32 lr_padding;       /* also fix lustre_swab_ldlm_resource_desc */
-	struct ldlm_res_id lr_name;
-};
-
-void lustre_swab_ldlm_resource_desc(struct ldlm_resource_desc *r);
-
-struct ldlm_lock_desc {
-	struct ldlm_resource_desc l_resource;
-	ldlm_mode_t l_req_mode;
-	ldlm_mode_t l_granted_mode;
-	ldlm_wire_policy_data_t l_policy_data;
-};
-
-void lustre_swab_ldlm_lock_desc(struct ldlm_lock_desc *l);
-
-#define LDLM_LOCKREQ_HANDLES 2
-#define LDLM_ENQUEUE_CANCEL_OFF 1
-
-struct ldlm_request {
-	__u32 lock_flags;
-	__u32 lock_count;
-	struct ldlm_lock_desc lock_desc;
-	struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES];
-};
-
-void lustre_swab_ldlm_request(struct ldlm_request *rq);
-
-/* If LDLM_ENQUEUE, 1 slot is already occupied, 1 is available.
- * Otherwise, 2 are available. */
-#define ldlm_request_bufsize(count, type)				\
-({								      \
-	int _avail = LDLM_LOCKREQ_HANDLES;			      \
-	_avail -= (type == LDLM_ENQUEUE ? LDLM_ENQUEUE_CANCEL_OFF : 0); \
-	sizeof(struct ldlm_request) +				   \
-	(count > _avail ? count - _avail : 0) *			 \
-	sizeof(struct lustre_handle);				   \
-})
-
-struct ldlm_reply {
-	__u32 lock_flags;
-	__u32 lock_padding;     /* also fix lustre_swab_ldlm_reply */
-	struct ldlm_lock_desc lock_desc;
-	struct lustre_handle lock_handle;
-	__u64  lock_policy_res1;
-	__u64  lock_policy_res2;
-};
-
-void lustre_swab_ldlm_reply(struct ldlm_reply *r);
-
-#define ldlm_flags_to_wire(flags)    ((__u32)(flags))
-#define ldlm_flags_from_wire(flags)  ((__u64)(flags))
-
-/*
- * Opcodes for mountconf (mgs and mgc)
- */
-typedef enum {
-	MGS_CONNECT = 250,
-	MGS_DISCONNECT,
-	MGS_EXCEPTION,	 /* node died, etc. */
-	MGS_TARGET_REG,	/* whenever target starts up */
-	MGS_TARGET_DEL,
-	MGS_SET_INFO,
-	MGS_CONFIG_READ,
-	MGS_LAST_OPC
-} mgs_cmd_t;
-#define MGS_FIRST_OPC MGS_CONNECT
-
-#define MGS_PARAM_MAXLEN 1024
-#define KEY_SET_INFO "set_info"
-
-struct mgs_send_param {
-	char	     mgs_param[MGS_PARAM_MAXLEN];
-};
-
-/* We pass this info to the MGS so it can write config logs */
-#define MTI_NAME_MAXLEN  64
-#define MTI_PARAM_MAXLEN 4096
-#define MTI_NIDS_MAX     32
-struct mgs_target_info {
-	__u32	    mti_lustre_ver;
-	__u32	    mti_stripe_index;
-	__u32	    mti_config_ver;
-	__u32	    mti_flags;
-	__u32	    mti_nid_count;
-	__u32	    mti_instance; /* Running instance of target */
-	char	     mti_fsname[MTI_NAME_MAXLEN];
-	char	     mti_svname[MTI_NAME_MAXLEN];
-	char	     mti_uuid[sizeof(struct obd_uuid)];
-	__u64	    mti_nids[MTI_NIDS_MAX];     /* host nids (lnet_nid_t)*/
-	char	     mti_params[MTI_PARAM_MAXLEN];
-};
-
-void lustre_swab_mgs_target_info(struct mgs_target_info *oinfo);
-
-struct mgs_nidtbl_entry {
-	__u64	   mne_version;    /* table version of this entry */
-	__u32	   mne_instance;   /* target instance # */
-	__u32	   mne_index;      /* target index */
-	__u32	   mne_length;     /* length of this entry - by bytes */
-	__u8	    mne_type;       /* target type LDD_F_SV_TYPE_OST/MDT */
-	__u8	    mne_nid_type;   /* type of nid(mbz). for ipv6. */
-	__u8	    mne_nid_size;   /* size of each NID, by bytes */
-	__u8	    mne_nid_count;  /* # of NIDs in buffer */
-	union {
-		lnet_nid_t nids[0];     /* variable size buffer for NIDs. */
-	} u;
-};
-
-void lustre_swab_mgs_nidtbl_entry(struct mgs_nidtbl_entry *oinfo);
-
-struct mgs_config_body {
-	char     mcb_name[MTI_NAME_MAXLEN]; /* logname */
-	__u64    mcb_offset;    /* next index of config log to request */
-	__u16    mcb_type;      /* type of log: CONFIG_T_[CONFIG|RECOVER] */
-	__u8     mcb_reserved;
-	__u8     mcb_bits;      /* bits unit size of config log */
-	__u32    mcb_units;     /* # of units for bulk transfer */
-};
-
-void lustre_swab_mgs_config_body(struct mgs_config_body *body);
-
-struct mgs_config_res {
-	__u64    mcr_offset;    /* index of last config log */
-	__u64    mcr_size;      /* size of the log */
-};
-
-void lustre_swab_mgs_config_res(struct mgs_config_res *body);
-
-/* Config marker flags (in config log) */
-#define CM_START       0x01
-#define CM_END	 0x02
-#define CM_SKIP	0x04
-#define CM_UPGRADE146  0x08
-#define CM_EXCLUDE     0x10
-#define CM_START_SKIP (CM_START | CM_SKIP)
-
-struct cfg_marker {
-	__u32	     cm_step;       /* aka config version */
-	__u32	     cm_flags;
-	__u32	     cm_vers;       /* lustre release version number */
-	__u32	     cm_padding;    /* 64 bit align */
-	__s64	     cm_createtime; /*when this record was first created */
-	__s64	     cm_canceltime; /*when this record is no longer valid*/
-	char	      cm_tgtname[MTI_NAME_MAXLEN];
-	char	      cm_comment[MTI_NAME_MAXLEN];
-};
-
-void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size);
-
-/*
- * Opcodes for multiple servers.
- */
-
-typedef enum {
-	OBD_PING = 400,
-	OBD_LOG_CANCEL,
-	OBD_QC_CALLBACK,
-	OBD_IDX_READ,
-	OBD_LAST_OPC
-} obd_cmd_t;
-#define OBD_FIRST_OPC OBD_PING
-
-/* catalog of log objects */
-
-/** Identifier for a single log object */
-struct llog_logid {
-	struct ost_id		lgl_oi;
-	__u32		   lgl_ogen;
-} __attribute__((packed));
-
-/** Records written to the CATALOGS list */
-#define CATLIST "CATALOGS"
-struct llog_catid {
-	struct llog_logid       lci_logid;
-	__u32		   lci_padding1;
-	__u32		   lci_padding2;
-	__u32		   lci_padding3;
-} __attribute__((packed));
-
-/* Log data record types - there is no specific reason that these need to
- * be related to the RPC opcodes, but no reason not to (may be handy later?)
- */
-#define LLOG_OP_MAGIC 0x10600000
-#define LLOG_OP_MASK  0xfff00000
-
-typedef enum {
-	LLOG_PAD_MAGIC		= LLOG_OP_MAGIC | 0x00000,
-	OST_SZ_REC		= LLOG_OP_MAGIC | 0x00f00,
-	/* OST_RAID1_REC	= LLOG_OP_MAGIC | 0x01000, never used */
-	MDS_UNLINK_REC		= LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) |
-				  REINT_UNLINK, /* obsolete after 2.5.0 */
-	MDS_UNLINK64_REC	= LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
-				  REINT_UNLINK,
-	/* MDS_SETATTR_REC	= LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */
-	MDS_SETATTR64_REC	= LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
-				  REINT_SETATTR,
-	OBD_CFG_REC		= LLOG_OP_MAGIC | 0x20000,
-	/* PTL_CFG_REC		= LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */
-	LLOG_GEN_REC		= LLOG_OP_MAGIC | 0x40000,
-	/* LLOG_JOIN_REC	= LLOG_OP_MAGIC | 0x50000, obsolete  1.8.0 */
-	CHANGELOG_REC		= LLOG_OP_MAGIC | 0x60000,
-	CHANGELOG_USER_REC	= LLOG_OP_MAGIC | 0x70000,
-	HSM_AGENT_REC		= LLOG_OP_MAGIC | 0x80000,
-	LLOG_HDR_MAGIC		= LLOG_OP_MAGIC | 0x45539,
-	LLOG_LOGID_MAGIC	= LLOG_OP_MAGIC | 0x4553b,
-} llog_op_type;
-
-#define LLOG_REC_HDR_NEEDS_SWABBING(r) \
-	(((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
-
-/** Log record header - stored in little endian order.
- * Each record must start with this struct, end with a llog_rec_tail,
- * and be a multiple of 256 bits in size.
- */
-struct llog_rec_hdr {
-	__u32	lrh_len;
-	__u32	lrh_index;
-	__u32	lrh_type;
-	__u32	lrh_id;
-};
-
-struct llog_rec_tail {
-	__u32	lrt_len;
-	__u32	lrt_index;
-};
-
-/* Where data follow just after header */
-#define REC_DATA(ptr)						\
-	((void *)((char *)ptr + sizeof(struct llog_rec_hdr)))
-
-#define REC_DATA_LEN(rec)					\
-	(rec->lrh_len - sizeof(struct llog_rec_hdr) -		\
-	 sizeof(struct llog_rec_tail))
-
-struct llog_logid_rec {
-	struct llog_rec_hdr	lid_hdr;
-	struct llog_logid	lid_id;
-	__u32			lid_padding1;
-	__u64			lid_padding2;
-	__u64			lid_padding3;
-	struct llog_rec_tail	lid_tail;
-} __attribute__((packed));
-
-struct llog_unlink_rec {
-	struct llog_rec_hdr	lur_hdr;
-	__u64			lur_oid;
-	__u32			lur_oseq;
-	__u32			lur_count;
-	struct llog_rec_tail	lur_tail;
-} __attribute__((packed));
-
-struct llog_unlink64_rec {
-	struct llog_rec_hdr	lur_hdr;
-	struct lu_fid		lur_fid;
-	__u32			lur_count; /* to destroy the lost precreated */
-	__u32			lur_padding1;
-	__u64			lur_padding2;
-	__u64			lur_padding3;
-	struct llog_rec_tail    lur_tail;
-} __attribute__((packed));
-
-struct llog_setattr64_rec {
-	struct llog_rec_hdr	lsr_hdr;
-	struct ost_id		lsr_oi;
-	__u32			lsr_uid;
-	__u32			lsr_uid_h;
-	__u32			lsr_gid;
-	__u32			lsr_gid_h;
-	__u64			lsr_padding;
-	struct llog_rec_tail    lsr_tail;
-} __attribute__((packed));
-
-struct llog_size_change_rec {
-	struct llog_rec_hdr	lsc_hdr;
-	struct ll_fid		lsc_fid;
-	__u32			lsc_ioepoch;
-	__u32			lsc_padding1;
-	__u64			lsc_padding2;
-	__u64			lsc_padding3;
-	struct llog_rec_tail	lsc_tail;
-} __attribute__((packed));
-
-#define CHANGELOG_MAGIC 0xca103000
-
-/** \a changelog_rec_type's that can't be masked */
-#define CHANGELOG_MINMASK (1 << CL_MARK)
-/** bits covering all \a changelog_rec_type's */
-#define CHANGELOG_ALLMASK 0XFFFFFFFF
-/** default \a changelog_rec_type mask */
-#define CHANGELOG_DEFMASK CHANGELOG_ALLMASK & ~(1 << CL_ATIME | 1 << CL_CLOSE)
-
-/* changelog llog name, needed by client replicators */
-#define CHANGELOG_CATALOG "changelog_catalog"
-
-struct changelog_setinfo {
-	__u64 cs_recno;
-	__u32 cs_id;
-} __attribute__((packed));
-
-/** changelog record */
-struct llog_changelog_rec {
-	struct llog_rec_hdr  cr_hdr;
-	struct changelog_rec cr;
-	struct llog_rec_tail cr_tail; /**< for_sizezof_only */
-} __attribute__((packed));
-
-struct llog_changelog_ext_rec {
-	struct llog_rec_hdr      cr_hdr;
-	struct changelog_ext_rec cr;
-	struct llog_rec_tail     cr_tail; /**< for_sizezof_only */
-} __attribute__((packed));
-
-#define CHANGELOG_USER_PREFIX "cl"
-
-struct llog_changelog_user_rec {
-	struct llog_rec_hdr   cur_hdr;
-	__u32		 cur_id;
-	__u32		 cur_padding;
-	__u64		 cur_endrec;
-	struct llog_rec_tail  cur_tail;
-} __attribute__((packed));
-
-enum agent_req_status {
-	ARS_WAITING,
-	ARS_STARTED,
-	ARS_FAILED,
-	ARS_CANCELED,
-	ARS_SUCCEED,
-};
-
-static inline char *agent_req_status2name(enum agent_req_status ars)
-{
-	switch (ars) {
-	case ARS_WAITING:
-		return "WAITING";
-	case ARS_STARTED:
-		return "STARTED";
-	case ARS_FAILED:
-		return "FAILED";
-	case ARS_CANCELED:
-		return "CANCELED";
-	case ARS_SUCCEED:
-		return "SUCCEED";
-	default:
-		return "UNKNOWN";
-	}
-}
-
-static inline bool agent_req_in_final_state(enum agent_req_status ars)
-{
-	return ((ars == ARS_SUCCEED) || (ars == ARS_FAILED) ||
-		(ars == ARS_CANCELED));
-}
-
-struct llog_agent_req_rec {
-	struct llog_rec_hdr	arr_hdr;	/**< record header */
-	__u32			arr_status;	/**< status of the request */
-						/* must match enum
-						 * agent_req_status */
-	__u32			arr_archive_id;	/**< backend archive number */
-	__u64			arr_flags;	/**< req flags */
-	__u64			arr_compound_id;	/**< compound cookie */
-	__u64			arr_req_create;	/**< req. creation time */
-	__u64			arr_req_change;	/**< req. status change time */
-	struct hsm_action_item	arr_hai;	/**< req. to the agent */
-	struct llog_rec_tail	arr_tail; /**< record tail for_sizezof_only */
-} __attribute__((packed));
-
-/* Old llog gen for compatibility */
-struct llog_gen {
-	__u64 mnt_cnt;
-	__u64 conn_cnt;
-} __attribute__((packed));
-
-struct llog_gen_rec {
-	struct llog_rec_hdr	lgr_hdr;
-	struct llog_gen		lgr_gen;
-	__u64			padding1;
-	__u64			padding2;
-	__u64			padding3;
-	struct llog_rec_tail	lgr_tail;
-};
-
-/* On-disk header structure of each log object, stored in little endian order */
-#define LLOG_CHUNK_SIZE	 8192
-#define LLOG_HEADER_SIZE	(96)
-#define LLOG_BITMAP_BYTES       (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
-
-#define LLOG_MIN_REC_SIZE       (24) /* round(llog_rec_hdr + llog_rec_tail) */
-
-/* flags for the logs */
-enum llog_flag {
-	LLOG_F_ZAP_WHEN_EMPTY	= 0x1,
-	LLOG_F_IS_CAT		= 0x2,
-	LLOG_F_IS_PLAIN		= 0x4,
-};
-
-struct llog_log_hdr {
-	struct llog_rec_hdr     llh_hdr;
-	__s64		   llh_timestamp;
-	__u32		   llh_count;
-	__u32		   llh_bitmap_offset;
-	__u32		   llh_size;
-	__u32		   llh_flags;
-	__u32		   llh_cat_idx;
-	/* for a catalog the first plain slot is next to it */
-	struct obd_uuid	 llh_tgtuuid;
-	__u32		   llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
-	__u32		   llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
-	struct llog_rec_tail    llh_tail;
-} __attribute__((packed));
-
-#define LLOG_BITMAP_SIZE(llh)  (__u32)((llh->llh_hdr.lrh_len -		\
-					llh->llh_bitmap_offset -	\
-					sizeof(llh->llh_tail)) * 8)
-
-/** log cookies are used to reference a specific log file and a record therein */
-struct llog_cookie {
-	struct llog_logid       lgc_lgl;
-	__u32		   lgc_subsys;
-	__u32		   lgc_index;
-	__u32		   lgc_padding;
-} __attribute__((packed));
-
-/** llog protocol */
-enum llogd_rpc_ops {
-	LLOG_ORIGIN_HANDLE_CREATE       = 501,
-	LLOG_ORIGIN_HANDLE_NEXT_BLOCK   = 502,
-	LLOG_ORIGIN_HANDLE_READ_HEADER  = 503,
-	LLOG_ORIGIN_HANDLE_WRITE_REC    = 504,
-	LLOG_ORIGIN_HANDLE_CLOSE	= 505,
-	LLOG_ORIGIN_CONNECT	     = 506,
-	LLOG_CATINFO			= 507,  /* deprecated */
-	LLOG_ORIGIN_HANDLE_PREV_BLOCK   = 508,
-	LLOG_ORIGIN_HANDLE_DESTROY      = 509,  /* for destroy llog object*/
-	LLOG_LAST_OPC,
-	LLOG_FIRST_OPC		  = LLOG_ORIGIN_HANDLE_CREATE
-};
-
-struct llogd_body {
-	struct llog_logid  lgd_logid;
-	__u32 lgd_ctxt_idx;
-	__u32 lgd_llh_flags;
-	__u32 lgd_index;
-	__u32 lgd_saved_index;
-	__u32 lgd_len;
-	__u64 lgd_cur_offset;
-} __attribute__((packed));
-
-struct llogd_conn_body {
-	struct llog_gen	 lgdc_gen;
-	struct llog_logid       lgdc_logid;
-	__u32		   lgdc_ctxt_idx;
-} __attribute__((packed));
-
-/* Note: 64-bit types are 64-bit aligned in structure */
-struct obdo {
-	__u64		o_valid;	/* hot fields in this obdo */
-	struct ost_id	o_oi;
-	__u64		o_parent_seq;
-	__u64		o_size;	 /* o_size-o_blocks == ost_lvb */
-	__s64		o_mtime;
-	__s64		o_atime;
-	__s64		o_ctime;
-	__u64		o_blocks;       /* brw: cli sent cached bytes */
-	__u64		o_grant;
-
-	/* 32-bit fields start here: keep an even number of them via padding */
-	__u32		o_blksize;      /* optimal IO blocksize */
-	__u32		o_mode;	 /* brw: cli sent cache remain */
-	__u32		o_uid;
-	__u32		o_gid;
-	__u32		o_flags;
-	__u32		o_nlink;	/* brw: checksum */
-	__u32		o_parent_oid;
-	__u32		o_misc;		/* brw: o_dropped */
-
-	__u64		   o_ioepoch;      /* epoch in ost writes */
-	__u32		   o_stripe_idx;   /* holds stripe idx */
-	__u32		   o_parent_ver;
-	struct lustre_handle    o_handle;       /* brw: lock handle to prolong
-						 * locks */
-	struct llog_cookie      o_lcookie;      /* destroy: unlink cookie from
-						 * MDS */
-	__u32			o_uid_h;
-	__u32			o_gid_h;
-
-	__u64			o_data_version; /* getattr: sum of iversion for
-						 * each stripe.
-						 * brw: grant space consumed on
-						 * the client for the write */
-	__u64			o_padding_4;
-	__u64			o_padding_5;
-	__u64			o_padding_6;
-};
-
-#define o_dirty   o_blocks
-#define o_undirty o_mode
-#define o_dropped o_misc
-#define o_cksum   o_nlink
-#define o_grant_used o_data_version
-
-static inline void lustre_set_wire_obdo(struct obd_connect_data *ocd,
-					struct obdo *wobdo,
-					const struct obdo *lobdo)
-{
-	*wobdo = *lobdo;
-	wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
-	if (ocd == NULL)
-		return;
-
-	if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
-	    fid_seq_is_echo(ostid_seq(&lobdo->o_oi))) {
-		/* Currently OBD_FL_OSTID will only be used when 2.4 echo
-		 * client communicate with pre-2.4 server */
-		wobdo->o_oi.oi.oi_id = fid_oid(&lobdo->o_oi.oi_fid);
-		wobdo->o_oi.oi.oi_seq = fid_seq(&lobdo->o_oi.oi_fid);
-	}
-}
-
-static inline void lustre_get_wire_obdo(struct obd_connect_data *ocd,
-					struct obdo *lobdo,
-					const struct obdo *wobdo)
-{
-	__u32 local_flags = 0;
-
-	if (lobdo->o_valid & OBD_MD_FLFLAGS)
-		 local_flags = lobdo->o_flags & OBD_FL_LOCAL_MASK;
-
-	*lobdo = *wobdo;
-	if (local_flags != 0) {
-		lobdo->o_valid |= OBD_MD_FLFLAGS;
-		lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
-		lobdo->o_flags |= local_flags;
-	}
-	if (ocd == NULL)
-		return;
-
-	if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
-	    fid_seq_is_echo(wobdo->o_oi.oi.oi_seq)) {
-		/* see above */
-		lobdo->o_oi.oi_fid.f_seq = wobdo->o_oi.oi.oi_seq;
-		lobdo->o_oi.oi_fid.f_oid = wobdo->o_oi.oi.oi_id;
-		lobdo->o_oi.oi_fid.f_ver = 0;
-	}
-}
-
-void lustre_swab_obdo(struct obdo *o);
-
-/* request structure for OST's */
-struct ost_body {
-	struct  obdo oa;
-};
-
-/* Key for FIEMAP to be used in get_info calls */
-struct ll_fiemap_info_key {
-	char    name[8];
-	struct  obdo oa;
-	struct  ll_user_fiemap fiemap;
-};
-
-void lustre_swab_ost_body(struct ost_body *b);
-void lustre_swab_ost_last_id(__u64 *id);
-void lustre_swab_fiemap(struct ll_user_fiemap *fiemap);
-
-void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum);
-void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum);
-void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
-				     int stripe_count);
-void lustre_swab_lov_mds_md(struct lov_mds_md *lmm);
-
-/* llog_swab.c */
-void lustre_swab_llogd_body(struct llogd_body *d);
-void lustre_swab_llog_hdr(struct llog_log_hdr *h);
-void lustre_swab_llogd_conn_body(struct llogd_conn_body *d);
-void lustre_swab_llog_rec(struct llog_rec_hdr *rec);
-void lustre_swab_llog_id(struct llog_logid *lid);
-
-struct lustre_cfg;
-void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg);
-
-/* Functions for dumping PTLRPC fields */
-void dump_rniobuf(struct niobuf_remote *rnb);
-void dump_ioo(struct obd_ioobj *nb);
-void dump_obdo(struct obdo *oa);
-void dump_ost_body(struct ost_body *ob);
-void dump_rcs(__u32 *rc);
-
-#define IDX_INFO_MAGIC 0x3D37CC37
-
-/* Index file transfer through the network. The server serializes the index into
- * a byte stream which is sent to the client via a bulk transfer */
-struct idx_info {
-	__u32		ii_magic;
-
-	/* reply: see idx_info_flags below */
-	__u32		ii_flags;
-
-	/* request & reply: number of lu_idxpage (to be) transferred */
-	__u16		ii_count;
-	__u16		ii_pad0;
-
-	/* request: requested attributes passed down to the iterator API */
-	__u32		ii_attrs;
-
-	/* request & reply: index file identifier (FID) */
-	struct lu_fid	ii_fid;
-
-	/* reply: version of the index file before starting to walk the index.
-	 * Please note that the version can be modified at any time during the
-	 * transfer */
-	__u64		ii_version;
-
-	/* request: hash to start with:
-	 * reply: hash of the first entry of the first lu_idxpage and hash
-	 *	of the entry to read next if any */
-	__u64		ii_hash_start;
-	__u64		ii_hash_end;
-
-	/* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is
-	 * set */
-	__u16		ii_keysize;
-
-	/* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC
-	 * is set */
-	__u16		ii_recsize;
-
-	__u32		ii_pad1;
-	__u64		ii_pad2;
-	__u64		ii_pad3;
-};
-
-void lustre_swab_idx_info(struct idx_info *ii);
-
-#define II_END_OFF	MDS_DIR_END_OFF /* all entries have been read */
-
-/* List of flags used in idx_info::ii_flags */
-enum idx_info_flags {
-	II_FL_NOHASH	= 1 << 0, /* client doesn't care about hash value */
-	II_FL_VARKEY	= 1 << 1, /* keys can be of variable size */
-	II_FL_VARREC	= 1 << 2, /* records can be of variable size */
-	II_FL_NONUNQ	= 1 << 3, /* index supports non-unique keys */
-};
-
-#define LIP_MAGIC 0x8A6D6B6C
-
-/* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
-struct lu_idxpage {
-	/* 16-byte header */
-	__u32	lip_magic;
-	__u16	lip_flags;
-	__u16	lip_nr;   /* number of entries in the container */
-	__u64	lip_pad0; /* additional padding for future use */
-
-	/* key/record pairs are stored in the remaining 4080 bytes.
-	 * depending upon the flags in idx_info::ii_flags, each key/record
-	 * pair might be preceded by:
-	 * - a hash value
-	 * - the key size (II_FL_VARKEY is set)
-	 * - the record size (II_FL_VARREC is set)
-	 *
-	 * For the time being, we only support fixed-size key & record. */
-	char	lip_entries[0];
-};
-
-void lustre_swab_lip_header(struct lu_idxpage *lip);
-
-#define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
-
-/* Gather all possible type associated with a 4KB container */
-union lu_page {
-	struct lu_dirpage	lp_dir; /* for MDS_READPAGE */
-	struct lu_idxpage	lp_idx; /* for OBD_IDX_READ */
-	char			lp_array[LU_PAGE_SIZE];
-};
-
-/* security opcodes */
-typedef enum {
-	SEC_CTX_INIT	    = 801,
-	SEC_CTX_INIT_CONT       = 802,
-	SEC_CTX_FINI	    = 803,
-	SEC_LAST_OPC,
-	SEC_FIRST_OPC	   = SEC_CTX_INIT
-} sec_cmd_t;
-
-/*
- * capa related definitions
- */
-#define CAPA_HMAC_MAX_LEN       64
-#define CAPA_HMAC_KEY_MAX_LEN   56
-
-/* NB take care when changing the sequence of elements this struct,
- * because the offset info is used in find_capa() */
-struct lustre_capa {
-	struct lu_fid   lc_fid;	 /** fid */
-	__u64	   lc_opc;	 /** operations allowed */
-	__u64	   lc_uid;	 /** file owner */
-	__u64	   lc_gid;	 /** file group */
-	__u32	   lc_flags;       /** HMAC algorithm & flags */
-	__u32	   lc_keyid;       /** key# used for the capability */
-	__u32	   lc_timeout;     /** capa timeout value (sec) */
-	__u32	   lc_expiry;      /** expiry time (sec) */
-	__u8	    lc_hmac[CAPA_HMAC_MAX_LEN];   /** HMAC */
-} __attribute__((packed));
-
-void lustre_swab_lustre_capa(struct lustre_capa *c);
-
-/** lustre_capa::lc_opc */
-enum {
-	CAPA_OPC_BODY_WRITE   = 1<<0,  /**< write object data */
-	CAPA_OPC_BODY_READ    = 1<<1,  /**< read object data */
-	CAPA_OPC_INDEX_LOOKUP = 1<<2,  /**< lookup object fid */
-	CAPA_OPC_INDEX_INSERT = 1<<3,  /**< insert object fid */
-	CAPA_OPC_INDEX_DELETE = 1<<4,  /**< delete object fid */
-	CAPA_OPC_OSS_WRITE    = 1<<5,  /**< write oss object data */
-	CAPA_OPC_OSS_READ     = 1<<6,  /**< read oss object data */
-	CAPA_OPC_OSS_TRUNC    = 1<<7,  /**< truncate oss object */
-	CAPA_OPC_OSS_DESTROY  = 1<<8,  /**< destroy oss object */
-	CAPA_OPC_META_WRITE   = 1<<9,  /**< write object meta data */
-	CAPA_OPC_META_READ    = 1<<10, /**< read object meta data */
-};
-
-#define CAPA_OPC_OSS_RW (CAPA_OPC_OSS_READ | CAPA_OPC_OSS_WRITE)
-#define CAPA_OPC_MDS_ONLY						   \
-	(CAPA_OPC_BODY_WRITE | CAPA_OPC_BODY_READ | CAPA_OPC_INDEX_LOOKUP | \
-	 CAPA_OPC_INDEX_INSERT | CAPA_OPC_INDEX_DELETE)
-#define CAPA_OPC_OSS_ONLY						   \
-	(CAPA_OPC_OSS_WRITE | CAPA_OPC_OSS_READ | CAPA_OPC_OSS_TRUNC |      \
-	 CAPA_OPC_OSS_DESTROY)
-#define CAPA_OPC_MDS_DEFAULT ~CAPA_OPC_OSS_ONLY
-#define CAPA_OPC_OSS_DEFAULT ~(CAPA_OPC_MDS_ONLY | CAPA_OPC_OSS_ONLY)
-
-/* MDS capability covers object capability for operations of body r/w
- * (dir readpage/sendpage), index lookup/insert/delete and meta data r/w,
- * while OSS capability only covers object capability for operations of
- * oss data(file content) r/w/truncate.
- */
-static inline int capa_for_mds(struct lustre_capa *c)
-{
-	return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) != 0;
-}
-
-static inline int capa_for_oss(struct lustre_capa *c)
-{
-	return (c->lc_opc & CAPA_OPC_INDEX_LOOKUP) == 0;
-}
-
-/* lustre_capa::lc_hmac_alg */
-enum {
-	CAPA_HMAC_ALG_SHA1 = 1, /**< sha1 algorithm */
-	CAPA_HMAC_ALG_MAX,
-};
-
-#define CAPA_FL_MASK	    0x00ffffff
-#define CAPA_HMAC_ALG_MASK      0xff000000
-
-struct lustre_capa_key {
-	__u64   lk_seq;       /**< mds# */
-	__u32   lk_keyid;     /**< key# */
-	__u32   lk_padding;
-	__u8    lk_key[CAPA_HMAC_KEY_MAX_LEN];    /**< key */
-} __attribute__((packed));
-
-void lustre_swab_lustre_capa_key(struct lustre_capa_key *k);
-
-/** The link ea holds 1 \a link_ea_entry for each hardlink */
-#define LINK_EA_MAGIC 0x11EAF1DFUL
-struct link_ea_header {
-	__u32 leh_magic;
-	__u32 leh_reccount;
-	__u64 leh_len;      /* total size */
-	/* future use */
-	__u32 padding1;
-	__u32 padding2;
-};
-
-/** Hardlink data is name and parent fid.
- * Stored in this crazy struct for maximum packing and endian-neutrality
- */
-struct link_ea_entry {
-	/** __u16 stored big-endian, unaligned */
-	unsigned char      lee_reclen[2];
-	unsigned char      lee_parent_fid[sizeof(struct lu_fid)];
-	char	       lee_name[0];
-}__attribute__((packed));
-
-/** fid2path request/reply structure */
-struct getinfo_fid2path {
-	struct lu_fid   gf_fid;
-	__u64	   gf_recno;
-	__u32	   gf_linkno;
-	__u32	   gf_pathlen;
-	char	    gf_path[0];
-} __attribute__((packed));
-
-void lustre_swab_fid2path (struct getinfo_fid2path *gf);
-
-enum {
-	LAYOUT_INTENT_ACCESS    = 0,
-	LAYOUT_INTENT_READ      = 1,
-	LAYOUT_INTENT_WRITE     = 2,
-	LAYOUT_INTENT_GLIMPSE   = 3,
-	LAYOUT_INTENT_TRUNC     = 4,
-	LAYOUT_INTENT_RELEASE   = 5,
-	LAYOUT_INTENT_RESTORE   = 6
-};
-
-/* enqueue layout lock with intent */
-struct layout_intent {
-	__u32 li_opc; /* intent operation for enqueue, read, write etc */
-	__u32 li_flags;
-	__u64 li_start;
-	__u64 li_end;
-};
-
-void lustre_swab_layout_intent(struct layout_intent *li);
-
-/**
- * On the wire version of hsm_progress structure.
- *
- * Contains the userspace hsm_progress and some internal fields.
- */
-struct hsm_progress_kernel {
-	/* Field taken from struct hsm_progress */
-	lustre_fid		hpk_fid;
-	__u64			hpk_cookie;
-	struct hsm_extent	hpk_extent;
-	__u16			hpk_flags;
-	__u16			hpk_errval; /* positive val */
-	__u32			hpk_padding1;
-	/* Additional fields */
-	__u64			hpk_data_version;
-	__u64			hpk_padding2;
-} __attribute__((packed));
-
-void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
-void lustre_swab_hsm_current_action(struct hsm_current_action *action);
-void lustre_swab_hsm_progress_kernel(struct hsm_progress_kernel *hpk);
-void lustre_swab_hsm_user_state(struct hsm_user_state *hus);
-void lustre_swab_hsm_user_item(struct hsm_user_item *hui);
-void lustre_swab_hsm_request(struct hsm_request *hr);
-
-/**
- * These are object update opcode under UPDATE_OBJ, which is currently
- * being used by cross-ref operations between MDT.
- *
- * During the cross-ref operation, the Master MDT, which the client send the
- * request to, will disassembly the operation into object updates, then OSP
- * will send these updates to the remote MDT to be executed.
- *
- *   Update request format
- *   magic:  UPDATE_BUFFER_MAGIC_V1
- *   Count:  How many updates in the req.
- *   bufs[0] : following are packets of object.
- *   update[0]:
- *		type: object_update_op, the op code of update
- *		fid: The object fid of the update.
- *		lens/bufs: other parameters of the update.
- *   update[1]:
- *		type: object_update_op, the op code of update
- *		fid: The object fid of the update.
- *		lens/bufs: other parameters of the update.
- *   ..........
- *   update[7]:	type: object_update_op, the op code of update
- *		fid: The object fid of the update.
- *		lens/bufs: other parameters of the update.
- *   Current 8 maxim updates per object update request.
- *
- *******************************************************************
- *   update reply format:
- *
- *   ur_version: UPDATE_REPLY_V1
- *   ur_count:   The count of the reply, which is usually equal
- *		 to the number of updates in the request.
- *   ur_lens:    The reply lengths of each object update.
- *
- *   replies:    1st update reply  [4bytes_ret: other body]
- *		 2nd update reply  [4bytes_ret: other body]
- *		 .....
- *		 nth update reply  [4bytes_ret: other body]
- *
- *   For each reply of the update, the format would be
- *	 result(4 bytes):Other stuff
- */
-
-#define UPDATE_MAX_OPS		10
-#define UPDATE_BUFFER_MAGIC_V1	0xBDDE0001
-#define UPDATE_BUFFER_MAGIC	UPDATE_BUFFER_MAGIC_V1
-#define UPDATE_BUF_COUNT	8
-enum object_update_op {
-	OBJ_CREATE		= 1,
-	OBJ_DESTROY		= 2,
-	OBJ_REF_ADD		= 3,
-	OBJ_REF_DEL		= 4,
-	OBJ_ATTR_SET		= 5,
-	OBJ_ATTR_GET		= 6,
-	OBJ_XATTR_SET		= 7,
-	OBJ_XATTR_GET		= 8,
-	OBJ_INDEX_LOOKUP	= 9,
-	OBJ_INDEX_INSERT	= 10,
-	OBJ_INDEX_DELETE	= 11,
-	OBJ_LAST
-};
-
-struct update {
-	__u32		u_type;
-	__u32		u_batchid;
-	struct lu_fid	u_fid;
-	__u32		u_lens[UPDATE_BUF_COUNT];
-	__u32		u_bufs[0];
-};
-
-struct update_buf {
-	__u32	ub_magic;
-	__u32	ub_count;
-	__u32	ub_bufs[0];
-};
-
-#define UPDATE_REPLY_V1		0x00BD0001
-struct update_reply {
-	__u32	ur_version;
-	__u32	ur_count;
-	__u32	ur_lens[0];
-};
-
-void lustre_swab_update_buf(struct update_buf *ub);
-void lustre_swab_update_reply_buf(struct update_reply *ur);
-
-/** layout swap request structure
- * fid1 and fid2 are in mdt_body
- */
-struct mdc_swap_layouts {
-	__u64	   msl_flags;
-} __packed;
-
-void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl);
-
-struct close_data {
-	struct lustre_handle	cd_handle;
-	struct lu_fid		cd_fid;
-	__u64			cd_data_version;
-	__u64			cd_reserved[8];
-};
-
-void lustre_swab_close_data(struct close_data *data);
-
-#endif
-/** @} lustreidl */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_lfsck_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_lfsck_user.h
deleted file mode 100644
index 1c87a61a7fc1..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_lfsck_user.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License version 2 for more details.  A copy is
- * included in the COPYING file that accompanied this code.
-
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * lustre/include/lustre/lustre_lfsck_user.h
- *
- * Lustre LFSCK userspace interfaces.
- *
- * Author: Fan Yong <yong.fan@whamcloud.com>
- */
-
-#ifndef _LUSTRE_LFSCK_USER_H
-# define _LUSTRE_LFSCK_USER_H
-
-enum lfsck_param_flags {
-	/* Reset LFSCK iterator position to the device beginning. */
-	LPF_RESET       = 0x0001,
-
-	/* Exit when fail. */
-	LPF_FAILOUT     = 0x0002,
-
-	/* Dryrun mode, only check without modification */
-	LPF_DRYRUN      = 0x0004,
-};
-
-enum lfsck_type {
-	/* For MDT-OST consistency check/repair. */
-	LT_LAYOUT	= 0x0001,
-
-	/* For MDT-MDT consistency check/repair. */
-	LT_DNE		= 0x0002,
-
-	/* For FID-in-dirent and linkEA consistency check/repair. */
-	LT_NAMESPACE	= 0x0004,
-};
-
-#define LFSCK_VERSION_V1	1
-#define LFSCK_VERSION_V2	2
-
-#define LFSCK_TYPES_ALL		((__u16)(~0))
-#define LFSCK_TYPES_DEF		((__u16)0)
-#define LFSCK_TYPES_SUPPORTED	LT_NAMESPACE
-
-#define LFSCK_SPEED_NO_LIMIT	0
-#define LFSCK_SPEED_LIMIT_DEF	LFSCK_SPEED_NO_LIMIT
-
-enum lfsck_start_valid {
-	LSV_SPEED_LIMIT		= 0x00000001,
-	LSV_ERROR_HANDLE	= 0x00000002,
-	LSV_DRYRUN		= 0x00000004,
-};
-
-/* Arguments for starting lfsck. */
-struct lfsck_start {
-	/* Which arguments are valid, see 'enum lfsck_start_valid'. */
-	__u32   ls_valid;
-
-	/* How many items can be scanned at most per second. */
-	__u32   ls_speed_limit;
-
-	/* For compatibility between user space tools and kernel service. */
-	__u16   ls_version;
-
-	/* Which LFSCK components to be (have been) started. */
-	__u16   ls_active;
-
-	/* Flags for the LFSCK, see 'enum lfsck_param_flags'. */
-	__u16   ls_flags;
-
-	/* For 64-bits aligned. */
-	__u16   ls_padding;
-};
-
-#endif /* _LUSTRE_LFSCK_USER_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
deleted file mode 100644
index 9b1bb23c4d3c..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
+++ /dev/null
@@ -1,1178 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre/lustre_user.h
- *
- * Lustre public user-space interface definitions.
- */
-
-#ifndef _LUSTRE_USER_H
-#define _LUSTRE_USER_H
-
-/** \defgroup lustreuser lustreuser
- *
- * @{
- */
-
-#include "ll_fiemap.h"
-#include "../linux/lustre_user.h"
-
-/* for statfs() */
-#define LL_SUPER_MAGIC 0x0BD00BD0
-
-#ifndef FSFILT_IOC_GETFLAGS
-#define FSFILT_IOC_GETFLAGS	       _IOR('f', 1, long)
-#define FSFILT_IOC_SETFLAGS	       _IOW('f', 2, long)
-#define FSFILT_IOC_GETVERSION	     _IOR('f', 3, long)
-#define FSFILT_IOC_SETVERSION	     _IOW('f', 4, long)
-#define FSFILT_IOC_GETVERSION_OLD	 _IOR('v', 1, long)
-#define FSFILT_IOC_SETVERSION_OLD	 _IOW('v', 2, long)
-#define FSFILT_IOC_FIEMAP		 _IOWR('f', 11, struct ll_user_fiemap)
-#endif
-
-/* FIEMAP flags supported by Lustre */
-#define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
-
-enum obd_statfs_state {
-	OS_STATE_DEGRADED       = 0x00000001, /**< RAID degraded/rebuilding */
-	OS_STATE_READONLY       = 0x00000002, /**< filesystem is read-only */
-	OS_STATE_RDONLY_1       = 0x00000004, /**< obsolete 1.6, was EROFS=30 */
-	OS_STATE_RDONLY_2       = 0x00000008, /**< obsolete 1.6, was EROFS=30 */
-	OS_STATE_RDONLY_3       = 0x00000010, /**< obsolete 1.6, was EROFS=30 */
-};
-
-struct obd_statfs {
-	__u64	   os_type;
-	__u64	   os_blocks;
-	__u64	   os_bfree;
-	__u64	   os_bavail;
-	__u64	   os_files;
-	__u64	   os_ffree;
-	__u8	    os_fsid[40];
-	__u32	   os_bsize;
-	__u32	   os_namelen;
-	__u64	   os_maxbytes;
-	__u32	   os_state;       /**< obd_statfs_state OS_STATE_* flag */
-	__u32	   os_fprecreated;	/* objs available now to the caller */
-					/* used in QoS code to find preferred
-					 * OSTs */
-	__u32	   os_spare2;
-	__u32	   os_spare3;
-	__u32	   os_spare4;
-	__u32	   os_spare5;
-	__u32	   os_spare6;
-	__u32	   os_spare7;
-	__u32	   os_spare8;
-	__u32	   os_spare9;
-};
-
-/**
- * File IDentifier.
- *
- * FID is a cluster-wide unique identifier of a file or an object (stripe).
- * FIDs are never reused.
- **/
-struct lu_fid {
-       /**
-	* FID sequence. Sequence is a unit of migration: all files (objects)
-	* with FIDs from a given sequence are stored on the same server.
-	* Lustre should support 2^64 objects, so even if each sequence
-	* has only a single object we can still enumerate 2^64 objects.
-	**/
-	__u64 f_seq;
-	/* FID number within sequence. */
-	__u32 f_oid;
-	/**
-	 * FID version, used to distinguish different versions (in the sense
-	 * of snapshots, etc.) of the same file system object. Not currently
-	 * used.
-	 **/
-	__u32 f_ver;
-};
-
-struct filter_fid {
-	struct lu_fid	ff_parent;  /* ff_parent.f_ver == file stripe number */
-};
-
-/* keep this one for compatibility */
-struct filter_fid_old {
-	struct lu_fid	ff_parent;
-	__u64		ff_objid;
-	__u64		ff_seq;
-};
-
-/* Userspace should treat lu_fid as opaque, and only use the following methods
- * to print or parse them.  Other functions (e.g. compare, swab) could be moved
- * here from lustre_idl.h if needed. */
-typedef struct lu_fid lustre_fid;
-
-/**
- * Following struct for object attributes, that will be kept inode's EA.
- * Introduced in 2.0 release (please see b15993, for details)
- * Added to all objects since Lustre 2.4 as contains self FID
- */
-struct lustre_mdt_attrs {
-	/**
-	 * Bitfield for supported data in this structure. From enum lma_compat.
-	 * lma_self_fid and lma_flags are always available.
-	 */
-	__u32   lma_compat;
-	/**
-	 * Per-file incompat feature list. Lustre version should support all
-	 * flags set in this field. The supported feature mask is available in
-	 * LMA_INCOMPAT_SUPP.
-	 */
-	__u32   lma_incompat;
-	/** FID of this inode */
-	struct lu_fid  lma_self_fid;
-};
-
-/**
- * Prior to 2.4, the LMA structure also included SOM attributes which has since
- * been moved to a dedicated xattr
- * lma_flags was also removed because of lma_compat/incompat fields.
- */
-#define LMA_OLD_SIZE (sizeof(struct lustre_mdt_attrs) + 5 * sizeof(__u64))
-
-/**
- * OST object IDentifier.
- */
-struct ost_id {
-	union {
-		struct ostid {
-			__u64	oi_id;
-			__u64	oi_seq;
-		} oi;
-		struct lu_fid oi_fid;
-	};
-};
-
-#define DOSTID "%#llx:%llu"
-#define POSTID(oi) ostid_seq(oi), ostid_id(oi)
-
-/*
- * The ioctl naming rules:
- * LL_*     - works on the currently opened filehandle instead of parent dir
- * *_OBD_*  - gets data for both OSC or MDC (LOV, LMV indirectly)
- * *_MDC_*  - gets/sets data related to MDC
- * *_LOV_*  - gets/sets data related to OSC/LOV
- * *FILE*   - called on parent dir and passes in a filename
- * *STRIPE* - set/get lov_user_md
- * *INFO    - set/get lov_user_mds_data
- */
-/* see <lustre_lib.h> for ioctl numberss 101-150 */
-#define LL_IOC_GETFLAGS		 _IOR ('f', 151, long)
-#define LL_IOC_SETFLAGS		 _IOW ('f', 152, long)
-#define LL_IOC_CLRFLAGS		 _IOW ('f', 153, long)
-/* LL_IOC_LOV_SETSTRIPE: See also OBD_IOC_LOV_SETSTRIPE */
-#define LL_IOC_LOV_SETSTRIPE	    _IOW ('f', 154, long)
-/* LL_IOC_LOV_GETSTRIPE: See also OBD_IOC_LOV_GETSTRIPE */
-#define LL_IOC_LOV_GETSTRIPE	    _IOW ('f', 155, long)
-/* LL_IOC_LOV_SETEA: See also OBD_IOC_LOV_SETEA */
-#define LL_IOC_LOV_SETEA		_IOW ('f', 156, long)
-#define LL_IOC_RECREATE_OBJ	     _IOW ('f', 157, long)
-#define LL_IOC_RECREATE_FID	     _IOW ('f', 157, struct lu_fid)
-#define LL_IOC_GROUP_LOCK	       _IOW ('f', 158, long)
-#define LL_IOC_GROUP_UNLOCK	     _IOW ('f', 159, long)
-/* LL_IOC_QUOTACHECK: See also OBD_IOC_QUOTACHECK */
-#define LL_IOC_QUOTACHECK	       _IOW ('f', 160, int)
-/* LL_IOC_POLL_QUOTACHECK: See also OBD_IOC_POLL_QUOTACHECK */
-#define LL_IOC_POLL_QUOTACHECK	  _IOR ('f', 161, struct if_quotacheck *)
-/* LL_IOC_QUOTACTL: See also OBD_IOC_QUOTACTL */
-#define LL_IOC_QUOTACTL		 _IOWR('f', 162, struct if_quotactl)
-#define IOC_OBD_STATFS		  _IOWR('f', 164, struct obd_statfs *)
-#define IOC_LOV_GETINFO		 _IOWR('f', 165, struct lov_user_mds_data *)
-#define LL_IOC_FLUSHCTX		 _IOW ('f', 166, long)
-#define LL_IOC_RMTACL		   _IOW ('f', 167, long)
-#define LL_IOC_GETOBDCOUNT	      _IOR ('f', 168, long)
-#define LL_IOC_LLOOP_ATTACH	     _IOWR('f', 169, long)
-#define LL_IOC_LLOOP_DETACH	     _IOWR('f', 170, long)
-#define LL_IOC_LLOOP_INFO	       _IOWR('f', 171, struct lu_fid)
-#define LL_IOC_LLOOP_DETACH_BYDEV       _IOWR('f', 172, long)
-#define LL_IOC_PATH2FID		 _IOR ('f', 173, long)
-#define LL_IOC_GET_CONNECT_FLAGS	_IOWR('f', 174, __u64 *)
-#define LL_IOC_GET_MDTIDX	       _IOR ('f', 175, int)
-
-/* see <lustre_lib.h> for ioctl numbers 177-210 */
-
-#define LL_IOC_HSM_STATE_GET		_IOR('f', 211, struct hsm_user_state)
-#define LL_IOC_HSM_STATE_SET		_IOW('f', 212, struct hsm_state_set)
-#define LL_IOC_HSM_CT_START		_IOW('f', 213, struct lustre_kernelcomm)
-#define LL_IOC_HSM_COPY_START		_IOW('f', 214, struct hsm_copy *)
-#define LL_IOC_HSM_COPY_END		_IOW('f', 215, struct hsm_copy *)
-#define LL_IOC_HSM_PROGRESS		_IOW('f', 216, struct hsm_user_request)
-#define LL_IOC_HSM_REQUEST		_IOW('f', 217, struct hsm_user_request)
-#define LL_IOC_DATA_VERSION		_IOR('f', 218, struct ioc_data_version)
-#define LL_IOC_LOV_SWAP_LAYOUTS		_IOW('f', 219, \
-						struct lustre_swap_layouts)
-#define LL_IOC_HSM_ACTION		_IOR('f', 220, \
-						struct hsm_current_action)
-/* see <lustre_lib.h> for ioctl numbers 221-232 */
-
-#define LL_IOC_LMV_SETSTRIPE	    _IOWR('f', 240, struct lmv_user_md)
-#define LL_IOC_LMV_GETSTRIPE	    _IOWR('f', 241, struct lmv_user_md)
-#define LL_IOC_SET_LEASE		_IOWR('f', 243, long)
-#define LL_IOC_GET_LEASE		_IO('f', 244)
-#define LL_IOC_HSM_IMPORT		_IOWR('f', 245, struct hsm_user_import)
-
-#define LL_STATFS_LMV	   1
-#define LL_STATFS_LOV	   2
-#define LL_STATFS_NODELAY	4
-
-#define IOC_MDC_TYPE	    'i'
-#define IOC_MDC_LOOKUP	  _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
-#define IOC_MDC_GETFILESTRIPE   _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
-#define IOC_MDC_GETFILEINFO     _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
-#define LL_IOC_MDC_GETINFO      _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
-
-/* Keep these for backward compartability. */
-#define LL_IOC_OBD_STATFS       IOC_OBD_STATFS
-#define IOC_MDC_GETSTRIPE       IOC_MDC_GETFILESTRIPE
-
-
-#define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
-
-/* Define O_LOV_DELAY_CREATE to be a mask that is not useful for regular
- * files, but are unlikely to be used in practice and are not harmful if
- * used incorrectly.  O_NOCTTY and FASYNC are only meaningful for character
- * devices and are safe for use on new files (See LU-812, LU-4209). */
-#define O_LOV_DELAY_CREATE	(O_NOCTTY | FASYNC)
-
-#define LL_FILE_IGNORE_LOCK     0x00000001
-#define LL_FILE_GROUP_LOCKED    0x00000002
-#define LL_FILE_READAHEA	0x00000004
-#define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
-#define LL_FILE_LOCKLESS_IO     0x00000010 /* server-side locks with cio */
-#define LL_FILE_RMTACL	  0x00000020
-
-#define LOV_USER_MAGIC_V1 0x0BD10BD0
-#define LOV_USER_MAGIC    LOV_USER_MAGIC_V1
-#define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
-#define LOV_USER_MAGIC_V3 0x0BD30BD0
-
-#define LMV_MAGIC_V1      0x0CD10CD0    /*normal stripe lmv magic */
-#define LMV_USER_MAGIC    0x0CD20CD0    /*default lmv magic*/
-
-#define LOV_PATTERN_RAID0 0x001
-#define LOV_PATTERN_RAID1 0x002
-#define LOV_PATTERN_FIRST 0x100
-
-#define LOV_MAXPOOLNAME 16
-#define LOV_POOLNAMEF "%.16s"
-
-#define LOV_MIN_STRIPE_BITS 16   /* maximum PAGE_SIZE (ia64), power of 2 */
-#define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS)
-#define LOV_MAX_STRIPE_COUNT_OLD 160
-/* This calculation is crafted so that input of 4096 will result in 160
- * which in turn is equal to old maximal stripe count.
- * XXX: In fact this is too simplified for now, what it also need is to get
- * ea_type argument to clearly know how much space each stripe consumes.
- *
- * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
- * allocation that is sufficient for the current generation of systems.
- *
- * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
-#define LOV_MAX_STRIPE_COUNT 2000  /* ((12 * 4096 - 256) / 24) */
-#define LOV_ALL_STRIPES       0xffff /* only valid for directories */
-#define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
-
-#define lov_user_ost_data lov_user_ost_data_v1
-struct lov_user_ost_data_v1 {     /* per-stripe data structure */
-	struct ost_id l_ost_oi;	  /* OST object ID */
-	__u32 l_ost_gen;	  /* generation of this OST index */
-	__u32 l_ost_idx;	  /* OST index in LOV */
-} __attribute__((packed));
-
-#define lov_user_md lov_user_md_v1
-struct lov_user_md_v1 {	   /* LOV EA user data (host-endian) */
-	__u32 lmm_magic;	  /* magic number = LOV_USER_MAGIC_V1 */
-	__u32 lmm_pattern;	/* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
-	struct ost_id lmm_oi;	  /* LOV object ID */
-	__u32 lmm_stripe_size;    /* size of stripe in bytes */
-	__u16 lmm_stripe_count;   /* num stripes in use for this object */
-	union {
-		__u16 lmm_stripe_offset;  /* starting stripe offset in
-					   * lmm_objects, use when writing */
-		__u16 lmm_layout_gen;     /* layout generation number
-					   * used when reading */
-	};
-	struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
-} __attribute__((packed,  __may_alias__));
-
-struct lov_user_md_v3 {	   /* LOV EA user data (host-endian) */
-	__u32 lmm_magic;	  /* magic number = LOV_USER_MAGIC_V3 */
-	__u32 lmm_pattern;	/* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
-	struct ost_id lmm_oi;	  /* LOV object ID */
-	__u32 lmm_stripe_size;    /* size of stripe in bytes */
-	__u16 lmm_stripe_count;   /* num stripes in use for this object */
-	union {
-		__u16 lmm_stripe_offset;  /* starting stripe offset in
-					   * lmm_objects, use when writing */
-		__u16 lmm_layout_gen;     /* layout generation number
-					   * used when reading */
-	};
-	char  lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */
-	struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
-} __attribute__((packed));
-
-static inline __u32 lov_user_md_size(__u16 stripes, __u32 lmm_magic)
-{
-	if (lmm_magic == LOV_USER_MAGIC_V3)
-		return sizeof(struct lov_user_md_v3) +
-				stripes * sizeof(struct lov_user_ost_data_v1);
-	else
-		return sizeof(struct lov_user_md_v1) +
-				stripes * sizeof(struct lov_user_ost_data_v1);
-}
-
-/* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
- * use this.  It is unsafe to #define those values in this header as it
- * is possible the application has already #included <sys/stat.h>. */
-#ifdef HAVE_LOV_USER_MDS_DATA
-#define lov_user_mds_data lov_user_mds_data_v1
-struct lov_user_mds_data_v1 {
-	lstat_t lmd_st;		 /* MDS stat struct */
-	struct lov_user_md_v1 lmd_lmm;  /* LOV EA V1 user data */
-} __attribute__((packed));
-
-struct lov_user_mds_data_v3 {
-	lstat_t lmd_st;		 /* MDS stat struct */
-	struct lov_user_md_v3 lmd_lmm;  /* LOV EA V3 user data */
-} __attribute__((packed));
-#endif
-
-/* keep this to be the same size as lov_user_ost_data_v1 */
-struct lmv_user_mds_data {
-	struct lu_fid	lum_fid;
-	__u32		lum_padding;
-	__u32		lum_mds;
-};
-
-/* lum_type */
-enum {
-	LMV_STRIPE_TYPE = 0,
-	LMV_DEFAULT_TYPE = 1,
-};
-
-#define lmv_user_md lmv_user_md_v1
-struct lmv_user_md_v1 {
-	__u32	lum_magic;	 /* must be the first field */
-	__u32	lum_stripe_count;  /* dirstripe count */
-	__u32	lum_stripe_offset; /* MDT idx for default dirstripe */
-	__u32	lum_hash_type;     /* Dir stripe policy */
-	__u32	lum_type;	  /* LMV type: default or normal */
-	__u32	lum_padding1;
-	__u32	lum_padding2;
-	__u32	lum_padding3;
-	char	lum_pool_name[LOV_MAXPOOLNAME];
-	struct	lmv_user_mds_data  lum_objects[0];
-};
-
-static inline int lmv_user_md_size(int stripes, int lmm_magic)
-{
-	return sizeof(struct lmv_user_md) +
-		      stripes * sizeof(struct lmv_user_mds_data);
-}
-
-void lustre_swab_lmv_user_md(struct lmv_user_md *lum);
-
-struct ll_recreate_obj {
-	__u64 lrc_id;
-	__u32 lrc_ost_idx;
-};
-
-struct ll_fid {
-	__u64 id;	 /* holds object id */
-	__u32 generation; /* holds object generation */
-	__u32 f_type;     /* holds object type or stripe idx when passing it to
-			   * OST for saving into EA. */
-};
-
-#define UUID_MAX	40
-struct obd_uuid {
-	char uuid[UUID_MAX];
-};
-
-static inline bool obd_uuid_equals(const struct obd_uuid *u1,
-				   const struct obd_uuid *u2)
-{
-	return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
-}
-
-static inline int obd_uuid_empty(struct obd_uuid *uuid)
-{
-	return uuid->uuid[0] == '\0';
-}
-
-static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
-{
-	strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
-	uuid->uuid[sizeof(*uuid) - 1] = '\0';
-}
-
-/* For printf's only, make sure uuid is terminated */
-static inline char *obd_uuid2str(const struct obd_uuid *uuid)
-{
-	if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
-		/* Obviously not safe, but for printfs, no real harm done...
-		   we're always null-terminated, even in a race. */
-		static char temp[sizeof(*uuid)];
-		memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
-		temp[sizeof(*uuid) - 1] = '\0';
-		return temp;
-	}
-	return (char *)(uuid->uuid);
-}
-
-/* Extract fsname from uuid (or target name) of a target
-   e.g. (myfs-OST0007_UUID -> myfs)
-   see also deuuidify. */
-static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
-{
-	char *p;
-
-	strncpy(buf, uuid, buflen - 1);
-	buf[buflen - 1] = '\0';
-	p = strrchr(buf, '-');
-	if (p)
-	   *p = '\0';
-}
-
-/* printf display format
-   e.g. printf("file FID is "DFID"\n", PFID(fid)); */
-#define FID_NOBRACE_LEN 40
-#define FID_LEN (FID_NOBRACE_LEN + 2)
-#define DFID_NOBRACE "%#llx:0x%x:0x%x"
-#define DFID "["DFID_NOBRACE"]"
-#define PFID(fid)     \
-	(fid)->f_seq, \
-	(fid)->f_oid, \
-	(fid)->f_ver
-
-/* scanf input parse format -- strip '[' first.
-   e.g. sscanf(fidstr, SFID, RFID(&fid)); */
-#define SFID "0x%llx:0x%x:0x%x"
-#define RFID(fid)     \
-	&((fid)->f_seq), \
-	&((fid)->f_oid), \
-	&((fid)->f_ver)
-
-
-/********* Quotas **********/
-
-/* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
-#define LUSTRE_Q_QUOTAON    0x800002     /* turn quotas on */
-#define LUSTRE_Q_QUOTAOFF   0x800003     /* turn quotas off */
-#define LUSTRE_Q_GETINFO    0x800005     /* get information about quota files */
-#define LUSTRE_Q_SETINFO    0x800006     /* set information about quota files */
-#define LUSTRE_Q_GETQUOTA   0x800007     /* get user quota structure */
-#define LUSTRE_Q_SETQUOTA   0x800008     /* set user quota structure */
-/* lustre-specific control commands */
-#define LUSTRE_Q_INVALIDATE  0x80000b     /* invalidate quota data */
-#define LUSTRE_Q_FINVALIDATE 0x80000c     /* invalidate filter quota data */
-
-#define UGQUOTA 2       /* set both USRQUOTA and GRPQUOTA */
-
-struct if_quotacheck {
-	char		    obd_type[16];
-	struct obd_uuid	 obd_uuid;
-};
-
-#define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
-
-/* permission */
-#define N_PERMS_MAX      64
-
-struct perm_downcall_data {
-	__u64 pdd_nid;
-	__u32 pdd_perm;
-	__u32 pdd_padding;
-};
-
-struct identity_downcall_data {
-	__u32			    idd_magic;
-	__u32			    idd_err;
-	__u32			    idd_uid;
-	__u32			    idd_gid;
-	__u32			    idd_nperms;
-	__u32			    idd_ngroups;
-	struct perm_downcall_data idd_perms[N_PERMS_MAX];
-	__u32			    idd_groups[0];
-};
-
-/* for non-mapped uid/gid */
-#define NOBODY_UID      99
-#define NOBODY_GID      99
-
-#define INVALID_ID      (-1)
-
-enum {
-	RMT_LSETFACL    = 1,
-	RMT_LGETFACL    = 2,
-	RMT_RSETFACL    = 3,
-	RMT_RGETFACL    = 4
-};
-
-#ifdef NEED_QUOTA_DEFS
-#ifndef QIF_BLIMITS
-#define QIF_BLIMITS     1
-#define QIF_SPACE       2
-#define QIF_ILIMITS     4
-#define QIF_INODES      8
-#define QIF_BTIME       16
-#define QIF_ITIME       32
-#define QIF_LIMITS      (QIF_BLIMITS | QIF_ILIMITS)
-#define QIF_USAGE       (QIF_SPACE | QIF_INODES)
-#define QIF_TIMES       (QIF_BTIME | QIF_ITIME)
-#define QIF_ALL	 (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
-#endif
-
-#endif /* !__KERNEL__ */
-
-/* lustre volatile file support
- * file name header: .^L^S^T^R:volatile"
- */
-#define LUSTRE_VOLATILE_HDR	".\x0c\x13\x14\x12:VOLATILE"
-#define LUSTRE_VOLATILE_HDR_LEN	14
-/* hdr + MDT index */
-#define LUSTRE_VOLATILE_IDX	LUSTRE_VOLATILE_HDR":%.4X:"
-
-typedef enum lustre_quota_version {
-	LUSTRE_QUOTA_V2 = 1
-} lustre_quota_version_t;
-
-/* XXX: same as if_dqinfo struct in kernel */
-struct obd_dqinfo {
-	__u64 dqi_bgrace;
-	__u64 dqi_igrace;
-	__u32 dqi_flags;
-	__u32 dqi_valid;
-};
-
-/* XXX: same as if_dqblk struct in kernel, plus one padding */
-struct obd_dqblk {
-	__u64 dqb_bhardlimit;
-	__u64 dqb_bsoftlimit;
-	__u64 dqb_curspace;
-	__u64 dqb_ihardlimit;
-	__u64 dqb_isoftlimit;
-	__u64 dqb_curinodes;
-	__u64 dqb_btime;
-	__u64 dqb_itime;
-	__u32 dqb_valid;
-	__u32 dqb_padding;
-};
-
-enum {
-	QC_GENERAL      = 0,
-	QC_MDTIDX       = 1,
-	QC_OSTIDX       = 2,
-	QC_UUID	 = 3
-};
-
-struct if_quotactl {
-	__u32		   qc_cmd;
-	__u32		   qc_type;
-	__u32		   qc_id;
-	__u32		   qc_stat;
-	__u32		   qc_valid;
-	__u32		   qc_idx;
-	struct obd_dqinfo       qc_dqinfo;
-	struct obd_dqblk	qc_dqblk;
-	char		    obd_type[16];
-	struct obd_uuid	 obd_uuid;
-};
-
-/* swap layout flags */
-#define SWAP_LAYOUTS_CHECK_DV1		(1 << 0)
-#define SWAP_LAYOUTS_CHECK_DV2		(1 << 1)
-#define SWAP_LAYOUTS_KEEP_MTIME		(1 << 2)
-#define SWAP_LAYOUTS_KEEP_ATIME		(1 << 3)
-
-/* Swap XATTR_NAME_HSM as well, only on the MDT so far */
-#define SWAP_LAYOUTS_MDS_HSM		(1 << 31)
-struct lustre_swap_layouts {
-	__u64	sl_flags;
-	__u32	sl_fd;
-	__u32	sl_gid;
-	__u64	sl_dv1;
-	__u64	sl_dv2;
-};
-
-
-/********* Changelogs **********/
-/** Changelog record types */
-enum changelog_rec_type {
-	CL_MARK     = 0,
-	CL_CREATE   = 1,  /* namespace */
-	CL_MKDIR    = 2,  /* namespace */
-	CL_HARDLINK = 3,  /* namespace */
-	CL_SOFTLINK = 4,  /* namespace */
-	CL_MKNOD    = 5,  /* namespace */
-	CL_UNLINK   = 6,  /* namespace */
-	CL_RMDIR    = 7,  /* namespace */
-	CL_RENAME   = 8,  /* namespace */
-	CL_EXT      = 9,  /* namespace extended record (2nd half of rename) */
-	CL_OPEN     = 10, /* not currently used */
-	CL_CLOSE    = 11, /* may be written to log only with mtime change */
-	CL_LAYOUT   = 12, /* file layout/striping modified */
-	CL_TRUNC    = 13,
-	CL_SETATTR  = 14,
-	CL_XATTR    = 15,
-	CL_HSM      = 16, /* HSM specific events, see flags */
-	CL_MTIME    = 17, /* Precedence: setattr > mtime > ctime > atime */
-	CL_CTIME    = 18,
-	CL_ATIME    = 19,
-	CL_LAST
-};
-
-static inline const char *changelog_type2str(int type) {
-	static const char *changelog_str[] = {
-		"MARK",  "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
-		"RMDIR", "RENME", "RNMTO", "OPEN",  "CLOSE", "LYOUT", "TRUNC",
-		"SATTR", "XATTR", "HSM",   "MTIME", "CTIME", "ATIME",
-	};
-
-	if (type >= 0 && type < CL_LAST)
-		return changelog_str[type];
-	return NULL;
-}
-
-/* per-record flags */
-#define CLF_VERSION     0x1000
-#define CLF_EXT_VERSION 0x2000
-#define CLF_FLAGSHIFT   12
-#define CLF_FLAGMASK    ((1U << CLF_FLAGSHIFT) - 1)
-#define CLF_VERMASK     (~CLF_FLAGMASK)
-/* Anything under the flagmask may be per-type (if desired) */
-/* Flags for unlink */
-#define CLF_UNLINK_LAST       0x0001 /* Unlink of last hardlink */
-#define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
-				     /* HSM cleaning needed */
-/* Flags for rename */
-#define CLF_RENAME_LAST       0x0001 /* rename unlink last hardlink of target */
-
-/* Flags for HSM */
-/* 12b used (from high weight to low weight):
- * 2b for flags
- * 3b for event
- * 7b for error code
- */
-#define CLF_HSM_ERR_L	0 /* HSM return code, 7 bits */
-#define CLF_HSM_ERR_H	6
-#define CLF_HSM_EVENT_L      7 /* HSM event, 3 bits, see enum hsm_event */
-#define CLF_HSM_EVENT_H      9
-#define CLF_HSM_FLAG_L      10 /* HSM flags, 2 bits, 1 used, 1 spare */
-#define CLF_HSM_FLAG_H      11
-#define CLF_HSM_SPARE_L     12 /* 4 spare bits */
-#define CLF_HSM_SPARE_H     15
-#define CLF_HSM_LAST	15
-
-/* Remove bits higher than _h, then extract the value
- * between _h and _l by shifting lower weigth to bit 0. */
-#define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
-				   >> (CLF_HSM_LAST - _h + _l))
-
-#define CLF_HSM_SUCCESS      0x00
-#define CLF_HSM_MAXERROR     0x7E
-#define CLF_HSM_ERROVERFLOW  0x7F
-
-#define CLF_HSM_DIRTY	1 /* file is dirty after HSM request end */
-
-/* 3 bits field => 8 values allowed */
-enum hsm_event {
-	HE_ARCHIVE      = 0,
-	HE_RESTORE      = 1,
-	HE_CANCEL       = 2,
-	HE_RELEASE      = 3,
-	HE_REMOVE       = 4,
-	HE_STATE	= 5,
-	HE_SPARE1       = 6,
-	HE_SPARE2       = 7,
-};
-
-static inline enum hsm_event hsm_get_cl_event(__u16 flags)
-{
-	return CLF_GET_BITS(flags, CLF_HSM_EVENT_H, CLF_HSM_EVENT_L);
-}
-
-static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
-{
-	*flags |= (he << CLF_HSM_EVENT_L);
-}
-
-static inline __u16 hsm_get_cl_flags(int flags)
-{
-	return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
-}
-
-static inline void hsm_set_cl_flags(int *flags, int bits)
-{
-	*flags |= (bits << CLF_HSM_FLAG_L);
-}
-
-static inline int hsm_get_cl_error(int flags)
-{
-	return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
-}
-
-static inline void hsm_set_cl_error(int *flags, int error)
-{
-	*flags |= (error << CLF_HSM_ERR_L);
-}
-
-#define CR_MAXSIZE cfs_size_round(2*NAME_MAX + 1 + \
-				  sizeof(struct changelog_ext_rec))
-
-struct changelog_rec {
-	__u16		 cr_namelen;
-	__u16		 cr_flags; /**< (flags&CLF_FLAGMASK)|CLF_VERSION */
-	__u32		 cr_type;  /**< \a changelog_rec_type */
-	__u64		 cr_index; /**< changelog record number */
-	__u64		 cr_prev;  /**< last index for this target fid */
-	__u64		 cr_time;
-	union {
-		lustre_fid    cr_tfid;	/**< target fid */
-		__u32	 cr_markerflags; /**< CL_MARK flags */
-	};
-	lustre_fid	    cr_pfid;	/**< parent fid */
-	char		  cr_name[0];     /**< last element */
-} __attribute__((packed));
-
-/* changelog_ext_rec is 2*sizeof(lu_fid) bigger than changelog_rec, to save
- * space, only rename uses changelog_ext_rec, while others use changelog_rec to
- * store records.
- */
-struct changelog_ext_rec {
-	__u16			cr_namelen;
-	__u16			cr_flags; /**< (flags & CLF_FLAGMASK) |
-						CLF_EXT_VERSION */
-	__u32			cr_type;  /**< \a changelog_rec_type */
-	__u64			cr_index; /**< changelog record number */
-	__u64			cr_prev;  /**< last index for this target fid */
-	__u64			cr_time;
-	union {
-		lustre_fid	cr_tfid;	/**< target fid */
-		__u32		cr_markerflags; /**< CL_MARK flags */
-	};
-	lustre_fid		cr_pfid;	/**< target parent fid */
-	lustre_fid		cr_sfid;	/**< source fid, or zero */
-	lustre_fid		cr_spfid;       /**< source parent fid, or zero */
-	char			cr_name[0];     /**< last element */
-} __attribute__((packed));
-
-#define CHANGELOG_REC_EXTENDED(rec) \
-	(((rec)->cr_flags & CLF_VERMASK) == CLF_EXT_VERSION)
-
-static inline int changelog_rec_size(struct changelog_rec *rec)
-{
-	return CHANGELOG_REC_EXTENDED(rec) ? sizeof(struct changelog_ext_rec):
-					     sizeof(*rec);
-}
-
-static inline char *changelog_rec_name(struct changelog_rec *rec)
-{
-	return CHANGELOG_REC_EXTENDED(rec) ?
-		((struct changelog_ext_rec *)rec)->cr_name: rec->cr_name;
-}
-
-static inline int changelog_rec_snamelen(struct changelog_ext_rec *rec)
-{
-	return rec->cr_namelen - strlen(rec->cr_name) - 1;
-}
-
-static inline char *changelog_rec_sname(struct changelog_ext_rec *rec)
-{
-	return rec->cr_name + strlen(rec->cr_name) + 1;
-}
-
-struct ioc_changelog {
-	__u64 icc_recno;
-	__u32 icc_mdtindex;
-	__u32 icc_id;
-	__u32 icc_flags;
-};
-
-enum changelog_message_type {
-	CL_RECORD = 10, /* message is a changelog_rec */
-	CL_EOF    = 11, /* at end of current changelog */
-};
-
-/********* Misc **********/
-
-struct ioc_data_version {
-	__u64 idv_version;
-	__u64 idv_flags;     /* See LL_DV_xxx */
-};
-#define LL_DV_NOFLUSH 0x01   /* Do not take READ EXTENT LOCK before sampling
-				version. Dirty caches are left unchanged. */
-
-#ifndef offsetof
-# define offsetof(typ, memb)     ((unsigned long)((char *)&(((typ *)0)->memb)))
-#endif
-
-#define dot_lustre_name ".lustre"
-
-
-/********* HSM **********/
-
-/** HSM per-file state
- * See HSM_FLAGS below.
- */
-enum hsm_states {
-	HS_EXISTS	= 0x00000001,
-	HS_DIRTY	= 0x00000002,
-	HS_RELEASED	= 0x00000004,
-	HS_ARCHIVED	= 0x00000008,
-	HS_NORELEASE	= 0x00000010,
-	HS_NOARCHIVE	= 0x00000020,
-	HS_LOST		= 0x00000040,
-};
-
-/* HSM user-setable flags. */
-#define HSM_USER_MASK   (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
-
-/* Other HSM flags. */
-#define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
-
-/*
- * All HSM-related possible flags that could be applied to a file.
- * This should be kept in sync with hsm_states.
- */
-#define HSM_FLAGS_MASK  (HSM_USER_MASK | HSM_STATUS_MASK)
-
-/**
- * HSM request progress state
- */
-enum hsm_progress_states {
-	HPS_WAITING	= 1,
-	HPS_RUNNING	= 2,
-	HPS_DONE	= 3,
-};
-#define HPS_NONE	0
-
-static inline char *hsm_progress_state2name(enum hsm_progress_states s)
-{
-	switch  (s) {
-	case HPS_WAITING:	return "waiting";
-	case HPS_RUNNING:	return "running";
-	case HPS_DONE:		return "done";
-	default:		return "unknown";
-	}
-}
-
-struct hsm_extent {
-	__u64 offset;
-	__u64 length;
-} __attribute__((packed));
-
-/**
- * Current HSM states of a Lustre file.
- *
- * This structure purpose is to be sent to user-space mainly. It describes the
- * current HSM flags and in-progress action.
- */
-struct hsm_user_state {
-	/** Current HSM states, from enum hsm_states. */
-	__u32			hus_states;
-	__u32			hus_archive_id;
-	/**  The current undergoing action, if there is one */
-	__u32			hus_in_progress_state;
-	__u32			hus_in_progress_action;
-	struct hsm_extent	hus_in_progress_location;
-	char			hus_extended_info[];
-};
-
-struct hsm_state_set_ioc {
-	struct lu_fid	hssi_fid;
-	__u64		hssi_setmask;
-	__u64		hssi_clearmask;
-};
-
-/*
- * This structure describes the current in-progress action for a file.
- * it is returned to user space and send over the wire
- */
-struct hsm_current_action {
-	/**  The current undergoing action, if there is one */
-	/* state is one of hsm_progress_states */
-	__u32			hca_state;
-	/* action is one of hsm_user_action */
-	__u32			hca_action;
-	struct hsm_extent	hca_location;
-};
-
-/***** HSM user requests ******/
-/* User-generated (lfs/ioctl) request types */
-enum hsm_user_action {
-	HUA_NONE    =  1, /* no action (noop) */
-	HUA_ARCHIVE = 10, /* copy to hsm */
-	HUA_RESTORE = 11, /* prestage */
-	HUA_RELEASE = 12, /* drop ost objects */
-	HUA_REMOVE  = 13, /* remove from archive */
-	HUA_CANCEL  = 14  /* cancel a request */
-};
-
-static inline char *hsm_user_action2name(enum hsm_user_action  a)
-{
-	switch  (a) {
-	case HUA_NONE:    return "NOOP";
-	case HUA_ARCHIVE: return "ARCHIVE";
-	case HUA_RESTORE: return "RESTORE";
-	case HUA_RELEASE: return "RELEASE";
-	case HUA_REMOVE:  return "REMOVE";
-	case HUA_CANCEL:  return "CANCEL";
-	default:	  return "UNKNOWN";
-	}
-}
-
-/*
- * List of hr_flags (bit field)
- */
-#define HSM_FORCE_ACTION 0x0001
-/* used by CT, connot be set by user */
-#define HSM_GHOST_COPY   0x0002
-
-/**
- * Contains all the fixed part of struct hsm_user_request.
- *
- */
-struct hsm_request {
-	__u32 hr_action;	/* enum hsm_user_action */
-	__u32 hr_archive_id;	/* archive id, used only with HUA_ARCHIVE */
-	__u64 hr_flags;		/* request flags */
-	__u32 hr_itemcount;	/* item count in hur_user_item vector */
-	__u32 hr_data_len;
-};
-
-struct hsm_user_item {
-       lustre_fid	hui_fid;
-       struct hsm_extent hui_extent;
-} __attribute__((packed));
-
-struct hsm_user_request {
-	struct hsm_request	hur_request;
-	struct hsm_user_item	hur_user_item[0];
-	/* extra data blob at end of struct (after all
-	 * hur_user_items), only use helpers to access it
-	 */
-} __attribute__((packed));
-
-/** Return pointer to data field in a hsm user request */
-static inline void *hur_data(struct hsm_user_request *hur)
-{
-	return &(hur->hur_user_item[hur->hur_request.hr_itemcount]);
-}
-
-/**
- * Compute the current length of the provided hsm_user_request.  This returns -1
- * instead of an errno because ssize_t is defined to be only [ -1, SSIZE_MAX ]
- *
- * return -1 on bounds check error.
- */
-static inline ssize_t hur_len(struct hsm_user_request *hur)
-{
-	__u64	size;
-
-	/* can't overflow a __u64 since hr_itemcount is only __u32 */
-	size = offsetof(struct hsm_user_request, hur_user_item[0]) +
-		(__u64)hur->hur_request.hr_itemcount *
-		sizeof(hur->hur_user_item[0]) + hur->hur_request.hr_data_len;
-
-	if (size != (ssize_t)size)
-		return -1;
-
-	return size;
-}
-
-/****** HSM RPCs to copytool *****/
-/* Message types the copytool may receive */
-enum hsm_message_type {
-	HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
-};
-
-/* Actions the copytool may be instructed to take for a given action_item */
-enum hsm_copytool_action {
-	HSMA_NONE    = 10, /* no action */
-	HSMA_ARCHIVE = 20, /* arbitrary offset */
-	HSMA_RESTORE = 21,
-	HSMA_REMOVE  = 22,
-	HSMA_CANCEL  = 23
-};
-
-static inline char *hsm_copytool_action2name(enum hsm_copytool_action  a)
-{
-	switch  (a) {
-	case HSMA_NONE:    return "NOOP";
-	case HSMA_ARCHIVE: return "ARCHIVE";
-	case HSMA_RESTORE: return "RESTORE";
-	case HSMA_REMOVE:  return "REMOVE";
-	case HSMA_CANCEL:  return "CANCEL";
-	default:	   return "UNKNOWN";
-	}
-}
-
-/* Copytool item action description */
-struct hsm_action_item {
-	__u32      hai_len;     /* valid size of this struct */
-	__u32      hai_action;  /* hsm_copytool_action, but use known size */
-	lustre_fid hai_fid;     /* Lustre FID to operated on */
-	lustre_fid hai_dfid;    /* fid used for data access */
-	struct hsm_extent hai_extent;  /* byte range to operate on */
-	__u64      hai_cookie;  /* action cookie from coordinator */
-	__u64      hai_gid;     /* grouplock id */
-	char       hai_data[0]; /* variable length */
-} __attribute__((packed));
-
-/*
- * helper function which print in hexa the first bytes of
- * hai opaque field
- * \param hai [IN] record to print
- * \param buffer [OUT] output buffer
- * \param len [IN] max buffer len
- * \retval buffer
- */
-static inline char *hai_dump_data_field(struct hsm_action_item *hai,
-					char *buffer, int len)
-{
-	int i, sz, data_len;
-	char *ptr;
-
-	ptr = buffer;
-	sz = len;
-	data_len = hai->hai_len - sizeof(*hai);
-	for (i = 0 ; (i < data_len) && (sz > 0) ; i++) {
-		int cnt;
-
-		cnt = snprintf(ptr, sz, "%.2X",
-			       (unsigned char)hai->hai_data[i]);
-		ptr += cnt;
-		sz -= cnt;
-	}
-	*ptr = '\0';
-	return buffer;
-}
-
-/* Copytool action list */
-#define HAL_VERSION 1
-#define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */
-struct hsm_action_list {
-	__u32 hal_version;
-	__u32 hal_count;       /* number of hai's to follow */
-	__u64 hal_compound_id; /* returned by coordinator */
-	__u64 hal_flags;
-	__u32 hal_archive_id; /* which archive backend */
-	__u32 padding1;
-	char  hal_fsname[0];   /* null-terminated */
-	/* struct hsm_action_item[hal_count] follows, aligned on 8-byte
-	   boundaries. See hai_zero */
-} __attribute__((packed));
-
-#ifndef HAVE_CFS_SIZE_ROUND
-static inline int cfs_size_round (int val)
-{
-	return (val + 7) & (~0x7);
-}
-#define HAVE_CFS_SIZE_ROUND
-#endif
-
-/* Return pointer to first hai in action list */
-static inline struct hsm_action_item *hai_zero(struct hsm_action_list *hal)
-{
-	return (struct hsm_action_item *)(hal->hal_fsname +
-					  cfs_size_round(strlen(hal-> \
-								hal_fsname)
-							 + 1));
-}
-/* Return pointer to next hai */
-static inline struct hsm_action_item *hai_next(struct hsm_action_item *hai)
-{
-	return (struct hsm_action_item *)((char *)hai +
-					  cfs_size_round(hai->hai_len));
-}
-
-/* Return size of an hsm_action_list */
-static inline int hal_size(struct hsm_action_list *hal)
-{
-	int i, sz;
-	struct hsm_action_item *hai;
-
-	sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname) + 1);
-	hai = hai_zero(hal);
-	for (i = 0; i < hal->hal_count; i++, hai = hai_next(hai))
-		sz += cfs_size_round(hai->hai_len);
-
-	return sz;
-}
-
-/* HSM file import
- * describe the attributes to be set on imported file
- */
-struct hsm_user_import {
-	__u64		hui_size;
-	__u64		hui_atime;
-	__u64		hui_mtime;
-	__u32		hui_atime_ns;
-	__u32		hui_mtime_ns;
-	__u32		hui_uid;
-	__u32		hui_gid;
-	__u32		hui_mode;
-	__u32		hui_archive_id;
-};
-
-/* Copytool progress reporting */
-#define HP_FLAG_COMPLETED 0x01
-#define HP_FLAG_RETRY     0x02
-
-struct hsm_progress {
-	lustre_fid		hp_fid;
-	__u64			hp_cookie;
-	struct hsm_extent	hp_extent;
-	__u16			hp_flags;
-	__u16			hp_errval; /* positive val */
-	__u32			padding;
-};
-
-struct hsm_copy {
-	__u64			hc_data_version;
-	__u16			hc_flags;
-	__u16			hc_errval; /* positive val */
-	__u32			padding;
-	struct hsm_action_item	hc_hai;
-};
-
-/** @} lustreuser */
-
-#endif /* _LUSTRE_USER_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre_acl.h b/drivers/staging/lustre/lustre/include/lustre_acl.h
deleted file mode 100644
index aa4cfa7b749d..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_acl.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_acl.h
- */
-
-#ifndef _LUSTRE_ACL_H
-#define _LUSTRE_ACL_H
-
-#include <linux/fs.h>
-#include <linux/dcache.h>
-#include <linux/posix_acl_xattr.h>
-
-#define LUSTRE_POSIX_ACL_MAX_ENTRIES	32
-#define LUSTRE_POSIX_ACL_MAX_SIZE					\
-	(sizeof(posix_acl_xattr_header) +				\
-	 LUSTRE_POSIX_ACL_MAX_ENTRIES * sizeof(posix_acl_xattr_entry))
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_capa.h b/drivers/staging/lustre/lustre/include/lustre_capa.h
deleted file mode 100644
index fe19534ebd8f..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_capa.h
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_capa.h
- *
- * Author: Lai Siyao <lsy@clusterfs.com>
- */
-
-#ifndef __LINUX_CAPA_H_
-#define __LINUX_CAPA_H_
-
-/** \defgroup capa capa
- *
- * @{
- */
-
-/*
- * capability
- */
-#include <linux/crypto.h>
-#include "lustre/lustre_idl.h"
-
-#define CAPA_TIMEOUT 1800		/* sec, == 30 min */
-#define CAPA_KEY_TIMEOUT (24 * 60 * 60)  /* sec, == 1 days */
-
-struct capa_hmac_alg {
-	const char     *ha_name;
-	int	     ha_len;
-	int	     ha_keylen;
-};
-
-#define DEF_CAPA_HMAC_ALG(name, type, len, keylen)      \
-[CAPA_HMAC_ALG_ ## type] = {			    \
-	.ha_name	 = name,			\
-	.ha_len	  = len,			 \
-	.ha_keylen       = keylen,		      \
-}
-
-struct client_capa {
-	struct inode	     *inode;
-	struct list_head		lli_list;     /* link to lli_oss_capas */
-};
-
-struct target_capa {
-	struct hlist_node	  c_hash;       /* link to capa hash */
-};
-
-struct obd_capa {
-	struct list_head		c_list;       /* link to capa_list */
-
-	struct lustre_capa	c_capa;       /* capa */
-	atomic_t	      c_refc;       /* ref count */
-	unsigned long		c_expiry;     /* jiffies */
-	spinlock_t		c_lock;	/* protect capa content */
-	int			c_site;
-
-	union {
-		struct client_capa	cli;
-		struct target_capa	tgt;
-	} u;
-};
-
-enum {
-	CAPA_SITE_CLIENT = 0,
-	CAPA_SITE_SERVER,
-	CAPA_SITE_MAX
-};
-
-static inline struct lu_fid *capa_fid(struct lustre_capa *capa)
-{
-	return &capa->lc_fid;
-}
-
-static inline __u64 capa_opc(struct lustre_capa *capa)
-{
-	return capa->lc_opc;
-}
-
-static inline __u64 capa_uid(struct lustre_capa *capa)
-{
-	return capa->lc_uid;
-}
-
-static inline __u64 capa_gid(struct lustre_capa *capa)
-{
-	return capa->lc_gid;
-}
-
-static inline __u32 capa_flags(struct lustre_capa *capa)
-{
-	return capa->lc_flags & 0xffffff;
-}
-
-static inline __u32 capa_alg(struct lustre_capa *capa)
-{
-	return (capa->lc_flags >> 24);
-}
-
-static inline __u32 capa_keyid(struct lustre_capa *capa)
-{
-	return capa->lc_keyid;
-}
-
-static inline __u64 capa_key_seq(struct lustre_capa_key *key)
-{
-	return key->lk_seq;
-}
-
-static inline __u32 capa_key_keyid(struct lustre_capa_key *key)
-{
-	return key->lk_keyid;
-}
-
-static inline __u32 capa_timeout(struct lustre_capa *capa)
-{
-	return capa->lc_timeout;
-}
-
-static inline __u32 capa_expiry(struct lustre_capa *capa)
-{
-	return capa->lc_expiry;
-}
-
-void _debug_capa(struct lustre_capa *, struct libcfs_debug_msg_data *,
-		 const char *fmt, ...);
-#define DEBUG_CAPA(level, capa, fmt, args...)				  \
-do {									   \
-	if (((level) & D_CANTMASK) != 0 ||				     \
-	    ((libcfs_debug & (level)) != 0 &&				  \
-	     (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) {	       \
-		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, level, NULL);	      \
-		_debug_capa((capa), &msgdata, fmt, ##args);		    \
-	}								      \
-} while (0)
-
-#define DEBUG_CAPA_KEY(level, k, fmt, args...)				 \
-do {									   \
-CDEBUG(level, fmt " capability key@%p seq %llu keyid %u\n",		 \
-       ##args, k, capa_key_seq(k), capa_key_keyid(k));			 \
-} while (0)
-
-typedef int (* renew_capa_cb_t)(struct obd_capa *, struct lustre_capa *);
-
-/* obdclass/capa.c */
-extern struct list_head capa_list[];
-extern spinlock_t capa_lock;
-extern int capa_count[];
-extern struct kmem_cache *capa_cachep;
-
-struct hlist_head *init_capa_hash(void);
-void cleanup_capa_hash(struct hlist_head *hash);
-
-struct obd_capa *capa_add(struct hlist_head *hash,
-			  struct lustre_capa *capa);
-struct obd_capa *capa_lookup(struct hlist_head *hash,
-			     struct lustre_capa *capa, int alive);
-
-int capa_hmac(__u8 *hmac, struct lustre_capa *capa, __u8 *key);
-int capa_encrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen);
-int capa_decrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen);
-void capa_cpy(void *dst, struct obd_capa *ocapa);
-static inline struct obd_capa *alloc_capa(int site)
-{
-	struct obd_capa *ocapa;
-
-	if (unlikely(site != CAPA_SITE_CLIENT && site != CAPA_SITE_SERVER))
-		return ERR_PTR(-EINVAL);
-
-	OBD_SLAB_ALLOC_PTR(ocapa, capa_cachep);
-	if (unlikely(!ocapa))
-		return ERR_PTR(-ENOMEM);
-
-	INIT_LIST_HEAD(&ocapa->c_list);
-	atomic_set(&ocapa->c_refc, 1);
-	spin_lock_init(&ocapa->c_lock);
-	ocapa->c_site = site;
-	if (ocapa->c_site == CAPA_SITE_CLIENT)
-		INIT_LIST_HEAD(&ocapa->u.cli.lli_list);
-	else
-		INIT_HLIST_NODE(&ocapa->u.tgt.c_hash);
-
-	return ocapa;
-}
-
-static inline struct obd_capa *capa_get(struct obd_capa *ocapa)
-{
-	if (!ocapa)
-		return NULL;
-
-	atomic_inc(&ocapa->c_refc);
-	return ocapa;
-}
-
-static inline void capa_put(struct obd_capa *ocapa)
-{
-	if (!ocapa)
-		return;
-
-	if (atomic_read(&ocapa->c_refc) == 0) {
-		DEBUG_CAPA(D_ERROR, &ocapa->c_capa, "refc is 0 for");
-		LBUG();
-	}
-
-	if (atomic_dec_and_test(&ocapa->c_refc)) {
-		LASSERT(list_empty(&ocapa->c_list));
-		if (ocapa->c_site == CAPA_SITE_CLIENT) {
-			LASSERT(list_empty(&ocapa->u.cli.lli_list));
-		} else {
-			struct hlist_node *hnode;
-
-			hnode = &ocapa->u.tgt.c_hash;
-			LASSERT(!hnode->next && !hnode->pprev);
-		}
-		OBD_SLAB_FREE(ocapa, capa_cachep, sizeof(*ocapa));
-	}
-}
-
-static inline int open_flags_to_accmode(int flags)
-{
-	int mode = flags;
-
-	if ((mode + 1) & O_ACCMODE)
-		mode++;
-	if (mode & O_TRUNC)
-		mode |= 2;
-
-	return mode;
-}
-
-static inline __u64 capa_open_opc(int mode)
-{
-	return mode & FMODE_WRITE ? CAPA_OPC_OSS_WRITE : CAPA_OPC_OSS_READ;
-}
-
-static inline void set_capa_expiry(struct obd_capa *ocapa)
-{
-	unsigned long expiry = cfs_time_sub((unsigned long)ocapa->c_capa.lc_expiry,
-					 get_seconds());
-	ocapa->c_expiry = cfs_time_add(cfs_time_current(),
-				       cfs_time_seconds(expiry));
-}
-
-static inline int capa_is_expired_sec(struct lustre_capa *capa)
-{
-	return (capa->lc_expiry - get_seconds() <= 0);
-}
-
-static inline int capa_is_expired(struct obd_capa *ocapa)
-{
-	return time_before_eq(ocapa->c_expiry, cfs_time_current());
-}
-
-static inline int capa_opc_supported(struct lustre_capa *capa, __u64 opc)
-{
-	return (capa_opc(capa) & opc) == opc;
-}
-
-struct filter_capa_key {
-	struct list_head	      k_list;
-	struct lustre_capa_key  k_key;
-};
-
-enum {
-	LC_ID_NONE      = 0,
-	LC_ID_PLAIN     = 1,
-	LC_ID_CONVERT   = 2
-};
-
-#define BYPASS_CAPA (struct lustre_capa *)ERR_PTR(-ENOENT)
-
-/** @} capa */
-
-#endif /* __LINUX_CAPA_H_ */
diff --git a/drivers/staging/lustre/lustre/include/lustre_cfg.h b/drivers/staging/lustre/lustre/include/lustre_cfg.h
deleted file mode 100644
index 7b385b87261a..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_cfg.h
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LUSTRE_CFG_H
-#define _LUSTRE_CFG_H
-
-/** \defgroup cfg cfg
- *
- * @{
- */
-
-/*
- * 1cf6
- * lcfG
- */
-#define LUSTRE_CFG_VERSION 0x1cf60001
-#define LUSTRE_CFG_MAX_BUFCOUNT 8
-
-#define LCFG_HDR_SIZE(count) \
-    cfs_size_round(offsetof (struct lustre_cfg, lcfg_buflens[(count)]))
-
-/** If the LCFG_REQUIRED bit is set in a configuration command,
- * then the client is required to understand this parameter
- * in order to mount the filesystem. If it does not understand
- * a REQUIRED command the client mount will fail. */
-#define LCFG_REQUIRED	 0x0001000
-
-enum lcfg_command_type {
-	LCFG_ATTACH	     = 0x00cf001, /**< create a new obd instance */
-	LCFG_DETACH	     = 0x00cf002, /**< destroy obd instance */
-	LCFG_SETUP	      = 0x00cf003, /**< call type-specific setup */
-	LCFG_CLEANUP	    = 0x00cf004, /**< call type-specific cleanup */
-	LCFG_ADD_UUID	   = 0x00cf005, /**< add a nid to a niduuid */
-	LCFG_DEL_UUID	   = 0x00cf006, /**< remove a nid from a niduuid */
-	LCFG_MOUNTOPT	   = 0x00cf007, /**< create a profile (mdc, osc) */
-	LCFG_DEL_MOUNTOPT       = 0x00cf008, /**< destroy a profile */
-	LCFG_SET_TIMEOUT	= 0x00cf009, /**< set obd_timeout */
-	LCFG_SET_UPCALL	 = 0x00cf00a, /**< deprecated */
-	LCFG_ADD_CONN	   = 0x00cf00b, /**< add a failover niduuid to an obd */
-	LCFG_DEL_CONN	   = 0x00cf00c, /**< remove a failover niduuid */
-	LCFG_LOV_ADD_OBD	= 0x00cf00d, /**< add an osc to a lov */
-	LCFG_LOV_DEL_OBD	= 0x00cf00e, /**< remove an osc from a lov */
-	LCFG_PARAM	      = 0x00cf00f, /**< set a proc parameter */
-	LCFG_MARKER	     = 0x00cf010, /**< metadata about next cfg rec */
-	LCFG_LOG_START	  = 0x00ce011, /**< mgc only, process a cfg log */
-	LCFG_LOG_END	    = 0x00ce012, /**< stop processing updates */
-	LCFG_LOV_ADD_INA	= 0x00ce013, /**< like LOV_ADD_OBD, inactive */
-	LCFG_ADD_MDC	    = 0x00cf014, /**< add an mdc to a lmv */
-	LCFG_DEL_MDC	    = 0x00cf015, /**< remove an mdc from a lmv */
-	LCFG_SPTLRPC_CONF       = 0x00ce016, /**< security */
-	LCFG_POOL_NEW	   = 0x00ce020, /**< create an ost pool name */
-	LCFG_POOL_ADD	   = 0x00ce021, /**< add an ost to a pool */
-	LCFG_POOL_REM	   = 0x00ce022, /**< remove an ost from a pool */
-	LCFG_POOL_DEL	   = 0x00ce023, /**< destroy an ost pool name */
-	LCFG_SET_LDLM_TIMEOUT   = 0x00ce030, /**< set ldlm_timeout */
-	LCFG_PRE_CLEANUP	= 0x00cf031, /**< call type-specific pre
-					      * cleanup cleanup */
-	LCFG_SET_PARAM		= 0x00ce032, /**< use set_param syntax to set
-					      *a proc parameters */
-};
-
-struct lustre_cfg_bufs {
-	void    *lcfg_buf[LUSTRE_CFG_MAX_BUFCOUNT];
-	__u32    lcfg_buflen[LUSTRE_CFG_MAX_BUFCOUNT];
-	__u32    lcfg_bufcount;
-};
-
-struct lustre_cfg {
-	__u32 lcfg_version;
-	__u32 lcfg_command;
-
-	__u32 lcfg_num;
-	__u32 lcfg_flags;
-	__u64 lcfg_nid;
-	__u32 lcfg_nal;		/* not used any more */
-
-	__u32 lcfg_bufcount;
-	__u32 lcfg_buflens[0];
-};
-
-enum cfg_record_type {
-	PORTALS_CFG_TYPE = 1,
-	LUSTRE_CFG_TYPE = 123,
-};
-
-#define LUSTRE_CFG_BUFLEN(lcfg, idx)	    \
-	((lcfg)->lcfg_bufcount <= (idx)	 \
-	 ? 0				    \
-	 : (lcfg)->lcfg_buflens[(idx)])
-
-static inline void lustre_cfg_bufs_set(struct lustre_cfg_bufs *bufs,
-				       __u32		   index,
-				       void		   *buf,
-				       __u32		   buflen)
-{
-	if (index >= LUSTRE_CFG_MAX_BUFCOUNT)
-		return;
-	if (bufs == NULL)
-		return;
-
-	if (bufs->lcfg_bufcount <= index)
-		bufs->lcfg_bufcount = index + 1;
-
-	bufs->lcfg_buf[index]    = buf;
-	bufs->lcfg_buflen[index] = buflen;
-}
-
-static inline void lustre_cfg_bufs_set_string(struct lustre_cfg_bufs *bufs,
-					      __u32 index,
-					      char *str)
-{
-	lustre_cfg_bufs_set(bufs, index, str, str ? strlen(str) + 1 : 0);
-}
-
-static inline void lustre_cfg_bufs_reset(struct lustre_cfg_bufs *bufs, char *name)
-{
-	memset((bufs), 0, sizeof(*bufs));
-	if (name)
-		lustre_cfg_bufs_set_string(bufs, 0, name);
-}
-
-static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, int index)
-{
-	int i;
-	int offset;
-	int bufcount;
-	LASSERT (lcfg != NULL);
-	LASSERT (index >= 0);
-
-	bufcount = lcfg->lcfg_bufcount;
-	if (index >= bufcount)
-		return NULL;
-
-	offset = LCFG_HDR_SIZE(lcfg->lcfg_bufcount);
-	for (i = 0; i < index; i++)
-		offset += cfs_size_round(lcfg->lcfg_buflens[i]);
-	return (char *)lcfg + offset;
-}
-
-static inline void lustre_cfg_bufs_init(struct lustre_cfg_bufs *bufs,
-					struct lustre_cfg *lcfg)
-{
-	int i;
-	bufs->lcfg_bufcount = lcfg->lcfg_bufcount;
-	for (i = 0; i < bufs->lcfg_bufcount; i++) {
-		bufs->lcfg_buflen[i] = lcfg->lcfg_buflens[i];
-		bufs->lcfg_buf[i] = lustre_cfg_buf(lcfg, i);
-	}
-}
-
-static inline char *lustre_cfg_string(struct lustre_cfg *lcfg, int index)
-{
-	char *s;
-
-	if (lcfg->lcfg_buflens[index] == 0)
-		return NULL;
-
-	s = lustre_cfg_buf(lcfg, index);
-	if (s == NULL)
-		return NULL;
-
-	/*
-	 * make sure it's NULL terminated, even if this kills a char
-	 * of data.  Try to use the padding first though.
-	 */
-	if (s[lcfg->lcfg_buflens[index] - 1] != '\0') {
-		int last = min((int)lcfg->lcfg_buflens[index],
-			       cfs_size_round(lcfg->lcfg_buflens[index]) - 1);
-		char lost = s[last];
-		s[last] = '\0';
-		if (lost != '\0') {
-			CWARN("Truncated buf %d to '%s' (lost '%c'...)\n",
-			      index, s, lost);
-		}
-	}
-	return s;
-}
-
-static inline int lustre_cfg_len(__u32 bufcount, __u32 *buflens)
-{
-	int i;
-	int len;
-
-	len = LCFG_HDR_SIZE(bufcount);
-	for (i = 0; i < bufcount; i++)
-		len += cfs_size_round(buflens[i]);
-
-	return cfs_size_round(len);
-}
-
-
-#include "obd_support.h"
-
-static inline struct lustre_cfg *lustre_cfg_new(int cmd,
-						struct lustre_cfg_bufs *bufs)
-{
-	struct lustre_cfg *lcfg;
-	char *ptr;
-	int i;
-
-	OBD_ALLOC(lcfg, lustre_cfg_len(bufs->lcfg_bufcount,
-				       bufs->lcfg_buflen));
-	if (!lcfg)
-		return ERR_PTR(-ENOMEM);
-
-	lcfg->lcfg_version = LUSTRE_CFG_VERSION;
-	lcfg->lcfg_command = cmd;
-	lcfg->lcfg_bufcount = bufs->lcfg_bufcount;
-
-	ptr = (char *)lcfg + LCFG_HDR_SIZE(lcfg->lcfg_bufcount);
-	for (i = 0; i < lcfg->lcfg_bufcount; i++) {
-		lcfg->lcfg_buflens[i] = bufs->lcfg_buflen[i];
-		LOGL((char *)bufs->lcfg_buf[i], bufs->lcfg_buflen[i], ptr);
-	}
-	return lcfg;
-}
-
-static inline void lustre_cfg_free(struct lustre_cfg *lcfg)
-{
-	int len;
-
-	len = lustre_cfg_len(lcfg->lcfg_bufcount, lcfg->lcfg_buflens);
-
-	OBD_FREE(lcfg, len);
-	return;
-}
-
-static inline int lustre_cfg_sanity_check(void *buf, int len)
-{
-	struct lustre_cfg *lcfg = (struct lustre_cfg *)buf;
-
-	if (!lcfg)
-		return -EINVAL;
-
-	/* check that the first bits of the struct are valid */
-	if (len < LCFG_HDR_SIZE(0))
-		return -EINVAL;
-
-	if (lcfg->lcfg_version != LUSTRE_CFG_VERSION)
-		return -EINVAL;
-
-	if (lcfg->lcfg_bufcount >= LUSTRE_CFG_MAX_BUFCOUNT)
-		return -EINVAL;
-
-	/* check that the buflens are valid */
-	if (len < LCFG_HDR_SIZE(lcfg->lcfg_bufcount))
-		return -EINVAL;
-
-	/* make sure all the pointers point inside the data */
-	if (len < lustre_cfg_len(lcfg->lcfg_bufcount, lcfg->lcfg_buflens))
-		return -EINVAL;
-
-	return 0;
-}
-
-#include "lustre/lustre_user.h"
-
-/** @} cfg */
-
-#endif /* _LUSTRE_CFG_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre_debug.h b/drivers/staging/lustre/lustre/include/lustre_debug.h
deleted file mode 100644
index 6c92d0bc943b..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_debug.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LUSTRE_DEBUG_H
-#define _LUSTRE_DEBUG_H
-
-/** \defgroup debug debug
- *
- * @{
- */
-
-#include "lustre_net.h"
-#include "obd.h"
-
-/* lib/debug.c */
-void dump_lniobuf(struct niobuf_local *lnb);
-int dump_req(struct ptlrpc_request *req);
-int block_debug_setup(void *addr, int len, __u64 off, __u64 id);
-int block_debug_check(char *who, void *addr, int len, __u64 off, __u64 id);
-
-/** @} debug */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_disk.h b/drivers/staging/lustre/lustre/include/lustre_disk.h
deleted file mode 100644
index 9b2833131744..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_disk.h
+++ /dev/null
@@ -1,547 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_disk.h
- *
- * Lustre disk format definitions.
- *
- * Author: Nathan Rutman <nathan@clusterfs.com>
- */
-
-#ifndef _LUSTRE_DISK_H
-#define _LUSTRE_DISK_H
-
-/** \defgroup disk disk
- *
- * @{
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/types.h"
-#include <linux/backing-dev.h>
-
-/****************** on-disk files *********************/
-
-#define MDT_LOGS_DIR		"LOGS"  /* COMPAT_146 */
-#define MOUNT_CONFIGS_DIR	"CONFIGS"
-#define CONFIGS_FILE		"mountdata"
-/** Persistent mount data are stored on the disk in this file. */
-#define MOUNT_DATA_FILE		MOUNT_CONFIGS_DIR"/"CONFIGS_FILE
-#define LAST_RCVD		"last_rcvd"
-#define LOV_OBJID		"lov_objid"
-#define LOV_OBJSEQ		"lov_objseq"
-#define HEALTH_CHECK		"health_check"
-#define CAPA_KEYS		"capa_keys"
-#define CHANGELOG_USERS		"changelog_users"
-#define MGS_NIDTBL_DIR		"NIDTBL_VERSIONS"
-#define QMT_DIR			"quota_master"
-#define QSD_DIR			"quota_slave"
-#define HSM_ACTIONS		"hsm_actions"
-
-/****************** persistent mount data *********************/
-
-#define LDD_F_SV_TYPE_MDT   0x0001
-#define LDD_F_SV_TYPE_OST   0x0002
-#define LDD_F_SV_TYPE_MGS   0x0004
-#define LDD_F_SV_TYPE_MASK (LDD_F_SV_TYPE_MDT  | \
-			    LDD_F_SV_TYPE_OST  | \
-			    LDD_F_SV_TYPE_MGS)
-#define LDD_F_SV_ALL	0x0008
-/** need an index assignment */
-#define LDD_F_NEED_INDEX    0x0010
-/** never registered */
-#define LDD_F_VIRGIN	0x0020
-/** update the config logs for this server */
-#define LDD_F_UPDATE	0x0040
-/** rewrite the LDD */
-#define LDD_F_REWRITE_LDD   0x0080
-/** regenerate config logs for this fs or server */
-#define LDD_F_WRITECONF     0x0100
-/** COMPAT_14 */
-#define LDD_F_UPGRADE14     0x0200
-/** process as lctl conf_param */
-#define LDD_F_PARAM	 0x0400
-/** all nodes are specified as service nodes */
-#define LDD_F_NO_PRIMNODE   0x1000
-/** IR enable flag */
-#define LDD_F_IR_CAPABLE    0x2000
-/** the MGS refused to register the target. */
-#define LDD_F_ERROR	 0x4000
-/** process at lctl conf_param */
-#define LDD_F_PARAM2		0x8000
-
-/* opc for target register */
-#define LDD_F_OPC_REG   0x10000000
-#define LDD_F_OPC_UNREG 0x20000000
-#define LDD_F_OPC_READY 0x40000000
-#define LDD_F_OPC_MASK  0xf0000000
-
-#define LDD_F_ONDISK_MASK  (LDD_F_SV_TYPE_MASK)
-
-#define LDD_F_MASK	  0xFFFF
-
-enum ldd_mount_type {
-	LDD_MT_EXT3 = 0,
-	LDD_MT_LDISKFS,
-	LDD_MT_SMFS,
-	LDD_MT_REISERFS,
-	LDD_MT_LDISKFS2,
-	LDD_MT_ZFS,
-	LDD_MT_LAST
-};
-
-static inline char *mt_str(enum ldd_mount_type mt)
-{
-	static char *mount_type_string[] = {
-		"ext3",
-		"ldiskfs",
-		"smfs",
-		"reiserfs",
-		"ldiskfs2",
-		"zfs",
-	};
-	return mount_type_string[mt];
-}
-
-static inline char *mt_type(enum ldd_mount_type mt)
-{
-	static char *mount_type_string[] = {
-		"osd-ldiskfs",
-		"osd-ldiskfs",
-		"osd-smfs",
-		"osd-reiserfs",
-		"osd-ldiskfs",
-		"osd-zfs",
-	};
-	return mount_type_string[mt];
-}
-
-#define LDD_INCOMPAT_SUPP 0
-#define LDD_ROCOMPAT_SUPP 0
-
-#define LDD_MAGIC 0x1dd00001
-
-/* On-disk configuration file. In host-endian order. */
-struct lustre_disk_data {
-	__u32      ldd_magic;
-	__u32      ldd_feature_compat;  /* compatible feature flags */
-	__u32      ldd_feature_rocompat;/* read-only compatible feature flags */
-	__u32      ldd_feature_incompat;/* incompatible feature flags */
-
-	__u32      ldd_config_ver;      /* config rewrite count - not used */
-	__u32      ldd_flags;	   /* LDD_SV_TYPE */
-	__u32      ldd_svindex;	 /* server index (0001), must match
-					   svname */
-	__u32      ldd_mount_type;      /* target fs type LDD_MT_* */
-	char       ldd_fsname[64];      /* filesystem this server is part of,
-					   MTI_NAME_MAXLEN */
-	char       ldd_svname[64];      /* this server's name (lustre-mdt0001)*/
-	__u8       ldd_uuid[40];	/* server UUID (COMPAT_146) */
-
-/*200*/ char       ldd_userdata[1024 - 200]; /* arbitrary user string */
-/*1024*/__u8       ldd_padding[4096 - 1024];
-/*4096*/char       ldd_mount_opts[4096]; /* target fs mount opts */
-/*8192*/char       ldd_params[4096];     /* key=value pairs */
-};
-
-
-#define IS_MDT(data)    ((data)->lsi_flags & LDD_F_SV_TYPE_MDT)
-#define IS_OST(data)    ((data)->lsi_flags & LDD_F_SV_TYPE_OST)
-#define IS_MGS(data)    ((data)->lsi_flags & LDD_F_SV_TYPE_MGS)
-#define IS_SERVER(data) ((data)->lsi_flags & (LDD_F_SV_TYPE_MGS | \
-			 LDD_F_SV_TYPE_MDT | LDD_F_SV_TYPE_OST))
-#define MT_STR(data)    mt_str((data)->ldd_mount_type)
-
-/* Make the mdt/ost server obd name based on the filesystem name */
-static inline int server_make_name(__u32 flags, __u16 index, char *fs,
-				   char *name)
-{
-	if (flags & (LDD_F_SV_TYPE_MDT | LDD_F_SV_TYPE_OST)) {
-		if (!(flags & LDD_F_SV_ALL))
-			sprintf(name, "%.8s%c%s%04x", fs,
-				(flags & LDD_F_VIRGIN) ? ':' :
-					((flags & LDD_F_WRITECONF) ? '=' : '-'),
-				(flags & LDD_F_SV_TYPE_MDT) ? "MDT" : "OST",
-				index);
-	} else if (flags & LDD_F_SV_TYPE_MGS) {
-		sprintf(name, "MGS");
-	} else {
-		CERROR("unknown server type %#x\n", flags);
-		return 1;
-	}
-	return 0;
-}
-
-/****************** mount command *********************/
-
-/* The lmd is only used internally by Lustre; mount simply passes
-   everything as string options */
-
-#define LMD_MAGIC    0xbdacbd03
-
-/* gleaned from the mount command - no persistent info here */
-struct lustre_mount_data {
-	__u32      lmd_magic;
-	__u32      lmd_flags;	 /* lustre mount flags */
-	int	lmd_mgs_failnodes; /* mgs failover node count */
-	int	lmd_exclude_count;
-	int	lmd_recovery_time_soft;
-	int	lmd_recovery_time_hard;
-	char      *lmd_dev;	   /* device name */
-	char      *lmd_profile;       /* client only */
-	char      *lmd_mgssec;	/* sptlrpc flavor to mgs */
-	char      *lmd_opts;	  /* lustre mount options (as opposed to
-					 _device_ mount options) */
-	char      *lmd_params;	/* lustre params */
-	__u32     *lmd_exclude;       /* array of OSTs to ignore */
-	char	*lmd_mgs;	   /* MGS nid */
-	char	*lmd_osd_type;      /* OSD type */
-};
-
-#define LMD_FLG_SERVER		0x0001	/* Mounting a server */
-#define LMD_FLG_CLIENT		0x0002	/* Mounting a client */
-#define LMD_FLG_ABORT_RECOV	0x0008	/* Abort recovery */
-#define LMD_FLG_NOSVC		0x0010	/* Only start MGS/MGC for servers,
-					   no other services */
-#define LMD_FLG_NOMGS		0x0020	/* Only start target for servers, reusing
-					   existing MGS services */
-#define LMD_FLG_WRITECONF	0x0040	/* Rewrite config log */
-#define LMD_FLG_NOIR		0x0080	/* NO imperative recovery */
-#define LMD_FLG_NOSCRUB		0x0100	/* Do not trigger scrub automatically */
-#define LMD_FLG_MGS		0x0200	/* Also start MGS along with server */
-#define LMD_FLG_IAM		0x0400	/* IAM dir */
-#define LMD_FLG_NO_PRIMNODE	0x0800	/* all nodes are service nodes */
-#define LMD_FLG_VIRGIN		0x1000	/* the service registers first time */
-#define LMD_FLG_UPDATE		0x2000	/* update parameters */
-#define LMD_FLG_HSM		0x4000	/* Start coordinator */
-
-#define lmd_is_client(x) ((x)->lmd_flags & LMD_FLG_CLIENT)
-
-
-/****************** last_rcvd file *********************/
-
-/** version recovery epoch */
-#define LR_EPOCH_BITS   32
-#define lr_epoch(a) ((a) >> LR_EPOCH_BITS)
-#define LR_EXPIRE_INTERVALS 16 /**< number of intervals to track transno */
-#define ENOENT_VERSION 1 /** 'virtual' version of non-existent object */
-
-#define LR_SERVER_SIZE   512
-#define LR_CLIENT_START 8192
-#define LR_CLIENT_SIZE   128
-#if LR_CLIENT_START < LR_SERVER_SIZE
-#error "Can't have LR_CLIENT_START < LR_SERVER_SIZE"
-#endif
-
-/*
- * This limit is arbitrary (131072 clients on x86), but it is convenient to use
- * 2^n * PAGE_CACHE_SIZE * 8 for the number of bits that fit an order-n allocation.
- * If we need more than 131072 clients (order-2 allocation on x86) then this
- * should become an array of single-page pointers that are allocated on demand.
- */
-#if (128 * 1024UL) > (PAGE_CACHE_SIZE * 8)
-#define LR_MAX_CLIENTS (128 * 1024UL)
-#else
-#define LR_MAX_CLIENTS (PAGE_CACHE_SIZE * 8)
-#endif
-
-/** COMPAT_146: this is an OST (temporary) */
-#define OBD_COMPAT_OST	  0x00000002
-/** COMPAT_146: this is an MDT (temporary) */
-#define OBD_COMPAT_MDT	  0x00000004
-/** 2.0 server, interop flag to show server version is changed */
-#define OBD_COMPAT_20	   0x00000008
-
-/** MDS handles LOV_OBJID file */
-#define OBD_ROCOMPAT_LOVOBJID   0x00000001
-
-/** OST handles group subdirs */
-#define OBD_INCOMPAT_GROUPS     0x00000001
-/** this is an OST */
-#define OBD_INCOMPAT_OST	0x00000002
-/** this is an MDT */
-#define OBD_INCOMPAT_MDT	0x00000004
-/** common last_rvcd format */
-#define OBD_INCOMPAT_COMMON_LR  0x00000008
-/** FID is enabled */
-#define OBD_INCOMPAT_FID	0x00000010
-/** Size-on-MDS is enabled */
-#define OBD_INCOMPAT_SOM	0x00000020
-/** filesystem using iam format to store directory entries */
-#define OBD_INCOMPAT_IAM_DIR    0x00000040
-/** LMA attribute contains per-inode incompatible flags */
-#define OBD_INCOMPAT_LMA	0x00000080
-/** lmm_stripe_count has been shrunk from __u32 to __u16 and the remaining 16
- * bits are now used to store a generation. Once we start changing the layout
- * and bumping the generation, old versions expecting a 32-bit lmm_stripe_count
- * will be confused by interpreting stripe_count | gen << 16 as the actual
- * stripe count */
-#define OBD_INCOMPAT_LMM_VER    0x00000100
-/** multiple OI files for MDT */
-#define OBD_INCOMPAT_MULTI_OI   0x00000200
-
-/* Data stored per server at the head of the last_rcvd file.  In le32 order.
-   This should be common to filter_internal.h, lustre_mds.h */
-struct lr_server_data {
-	__u8  lsd_uuid[40];	/* server UUID */
-	__u64 lsd_last_transno;    /* last completed transaction ID */
-	__u64 lsd_compat14;	/* reserved - compat with old last_rcvd */
-	__u64 lsd_mount_count;     /* incarnation number */
-	__u32 lsd_feature_compat;  /* compatible feature flags */
-	__u32 lsd_feature_rocompat;/* read-only compatible feature flags */
-	__u32 lsd_feature_incompat;/* incompatible feature flags */
-	__u32 lsd_server_size;     /* size of server data area */
-	__u32 lsd_client_start;    /* start of per-client data area */
-	__u16 lsd_client_size;     /* size of per-client data area */
-	__u16 lsd_subdir_count;    /* number of subdirectories for objects */
-	__u64 lsd_catalog_oid;     /* recovery catalog object id */
-	__u32 lsd_catalog_ogen;    /* recovery catalog inode generation */
-	__u8  lsd_peeruuid[40];    /* UUID of MDS associated with this OST */
-	__u32 lsd_osd_index;       /* index number of OST in LOV */
-	__u32 lsd_padding1;	/* was lsd_mdt_index, unused in 2.4.0 */
-	__u32 lsd_start_epoch;     /* VBR: start epoch from last boot */
-	/** transaction values since lsd_trans_table_time */
-	__u64 lsd_trans_table[LR_EXPIRE_INTERVALS];
-	/** start point of transno table below */
-	__u32 lsd_trans_table_time; /* time of first slot in table above */
-	__u32 lsd_expire_intervals; /* LR_EXPIRE_INTERVALS */
-	__u8  lsd_padding[LR_SERVER_SIZE - 288];
-};
-
-/* Data stored per client in the last_rcvd file.  In le32 order. */
-struct lsd_client_data {
-	__u8  lcd_uuid[40];      /* client UUID */
-	__u64 lcd_last_transno; /* last completed transaction ID */
-	__u64 lcd_last_xid;     /* xid for the last transaction */
-	__u32 lcd_last_result;  /* result from last RPC */
-	__u32 lcd_last_data;    /* per-op data (disposition for open &c.) */
-	/* for MDS_CLOSE requests */
-	__u64 lcd_last_close_transno; /* last completed transaction ID */
-	__u64 lcd_last_close_xid;     /* xid for the last transaction */
-	__u32 lcd_last_close_result;  /* result from last RPC */
-	__u32 lcd_last_close_data;    /* per-op data */
-	/* VBR: last versions */
-	__u64 lcd_pre_versions[4];
-	__u32 lcd_last_epoch;
-	/** orphans handling for delayed export rely on that */
-	__u32 lcd_first_epoch;
-	__u8  lcd_padding[LR_CLIENT_SIZE - 128];
-};
-
-/* bug20354: the lcd_uuid for export of clients may be wrong */
-static inline void check_lcd(char *obd_name, int index,
-			     struct lsd_client_data *lcd)
-{
-	int length = sizeof(lcd->lcd_uuid);
-	if (strnlen((char*)lcd->lcd_uuid, length) == length) {
-		lcd->lcd_uuid[length - 1] = '\0';
-
-		LCONSOLE_ERROR("the client UUID (%s) on %s for exports stored in last_rcvd(index = %d) is bad!\n",
-			       lcd->lcd_uuid, obd_name, index);
-	}
-}
-
-/* last_rcvd handling */
-static inline void lsd_le_to_cpu(struct lr_server_data *buf,
-				 struct lr_server_data *lsd)
-{
-	int i;
-	memcpy(lsd->lsd_uuid, buf->lsd_uuid, sizeof(lsd->lsd_uuid));
-	lsd->lsd_last_transno     = le64_to_cpu(buf->lsd_last_transno);
-	lsd->lsd_compat14	 = le64_to_cpu(buf->lsd_compat14);
-	lsd->lsd_mount_count      = le64_to_cpu(buf->lsd_mount_count);
-	lsd->lsd_feature_compat   = le32_to_cpu(buf->lsd_feature_compat);
-	lsd->lsd_feature_rocompat = le32_to_cpu(buf->lsd_feature_rocompat);
-	lsd->lsd_feature_incompat = le32_to_cpu(buf->lsd_feature_incompat);
-	lsd->lsd_server_size      = le32_to_cpu(buf->lsd_server_size);
-	lsd->lsd_client_start     = le32_to_cpu(buf->lsd_client_start);
-	lsd->lsd_client_size      = le16_to_cpu(buf->lsd_client_size);
-	lsd->lsd_subdir_count     = le16_to_cpu(buf->lsd_subdir_count);
-	lsd->lsd_catalog_oid      = le64_to_cpu(buf->lsd_catalog_oid);
-	lsd->lsd_catalog_ogen     = le32_to_cpu(buf->lsd_catalog_ogen);
-	memcpy(lsd->lsd_peeruuid, buf->lsd_peeruuid, sizeof(lsd->lsd_peeruuid));
-	lsd->lsd_osd_index	= le32_to_cpu(buf->lsd_osd_index);
-	lsd->lsd_padding1	= le32_to_cpu(buf->lsd_padding1);
-	lsd->lsd_start_epoch      = le32_to_cpu(buf->lsd_start_epoch);
-	for (i = 0; i < LR_EXPIRE_INTERVALS; i++)
-		lsd->lsd_trans_table[i] = le64_to_cpu(buf->lsd_trans_table[i]);
-	lsd->lsd_trans_table_time = le32_to_cpu(buf->lsd_trans_table_time);
-	lsd->lsd_expire_intervals = le32_to_cpu(buf->lsd_expire_intervals);
-}
-
-static inline void lsd_cpu_to_le(struct lr_server_data *lsd,
-				 struct lr_server_data *buf)
-{
-	int i;
-	memcpy(buf->lsd_uuid, lsd->lsd_uuid, sizeof(buf->lsd_uuid));
-	buf->lsd_last_transno     = cpu_to_le64(lsd->lsd_last_transno);
-	buf->lsd_compat14	 = cpu_to_le64(lsd->lsd_compat14);
-	buf->lsd_mount_count      = cpu_to_le64(lsd->lsd_mount_count);
-	buf->lsd_feature_compat   = cpu_to_le32(lsd->lsd_feature_compat);
-	buf->lsd_feature_rocompat = cpu_to_le32(lsd->lsd_feature_rocompat);
-	buf->lsd_feature_incompat = cpu_to_le32(lsd->lsd_feature_incompat);
-	buf->lsd_server_size      = cpu_to_le32(lsd->lsd_server_size);
-	buf->lsd_client_start     = cpu_to_le32(lsd->lsd_client_start);
-	buf->lsd_client_size      = cpu_to_le16(lsd->lsd_client_size);
-	buf->lsd_subdir_count     = cpu_to_le16(lsd->lsd_subdir_count);
-	buf->lsd_catalog_oid      = cpu_to_le64(lsd->lsd_catalog_oid);
-	buf->lsd_catalog_ogen     = cpu_to_le32(lsd->lsd_catalog_ogen);
-	memcpy(buf->lsd_peeruuid, lsd->lsd_peeruuid, sizeof(buf->lsd_peeruuid));
-	buf->lsd_osd_index	  = cpu_to_le32(lsd->lsd_osd_index);
-	buf->lsd_padding1	  = cpu_to_le32(lsd->lsd_padding1);
-	buf->lsd_start_epoch      = cpu_to_le32(lsd->lsd_start_epoch);
-	for (i = 0; i < LR_EXPIRE_INTERVALS; i++)
-		buf->lsd_trans_table[i] = cpu_to_le64(lsd->lsd_trans_table[i]);
-	buf->lsd_trans_table_time = cpu_to_le32(lsd->lsd_trans_table_time);
-	buf->lsd_expire_intervals = cpu_to_le32(lsd->lsd_expire_intervals);
-}
-
-static inline void lcd_le_to_cpu(struct lsd_client_data *buf,
-				 struct lsd_client_data *lcd)
-{
-	memcpy(lcd->lcd_uuid, buf->lcd_uuid, sizeof (lcd->lcd_uuid));
-	lcd->lcd_last_transno       = le64_to_cpu(buf->lcd_last_transno);
-	lcd->lcd_last_xid	   = le64_to_cpu(buf->lcd_last_xid);
-	lcd->lcd_last_result	= le32_to_cpu(buf->lcd_last_result);
-	lcd->lcd_last_data	  = le32_to_cpu(buf->lcd_last_data);
-	lcd->lcd_last_close_transno = le64_to_cpu(buf->lcd_last_close_transno);
-	lcd->lcd_last_close_xid     = le64_to_cpu(buf->lcd_last_close_xid);
-	lcd->lcd_last_close_result  = le32_to_cpu(buf->lcd_last_close_result);
-	lcd->lcd_last_close_data    = le32_to_cpu(buf->lcd_last_close_data);
-	lcd->lcd_pre_versions[0]    = le64_to_cpu(buf->lcd_pre_versions[0]);
-	lcd->lcd_pre_versions[1]    = le64_to_cpu(buf->lcd_pre_versions[1]);
-	lcd->lcd_pre_versions[2]    = le64_to_cpu(buf->lcd_pre_versions[2]);
-	lcd->lcd_pre_versions[3]    = le64_to_cpu(buf->lcd_pre_versions[3]);
-	lcd->lcd_last_epoch	 = le32_to_cpu(buf->lcd_last_epoch);
-	lcd->lcd_first_epoch	= le32_to_cpu(buf->lcd_first_epoch);
-}
-
-static inline void lcd_cpu_to_le(struct lsd_client_data *lcd,
-				 struct lsd_client_data *buf)
-{
-	memcpy(buf->lcd_uuid, lcd->lcd_uuid, sizeof (lcd->lcd_uuid));
-	buf->lcd_last_transno       = cpu_to_le64(lcd->lcd_last_transno);
-	buf->lcd_last_xid	   = cpu_to_le64(lcd->lcd_last_xid);
-	buf->lcd_last_result	= cpu_to_le32(lcd->lcd_last_result);
-	buf->lcd_last_data	  = cpu_to_le32(lcd->lcd_last_data);
-	buf->lcd_last_close_transno = cpu_to_le64(lcd->lcd_last_close_transno);
-	buf->lcd_last_close_xid     = cpu_to_le64(lcd->lcd_last_close_xid);
-	buf->lcd_last_close_result  = cpu_to_le32(lcd->lcd_last_close_result);
-	buf->lcd_last_close_data    = cpu_to_le32(lcd->lcd_last_close_data);
-	buf->lcd_pre_versions[0]    = cpu_to_le64(lcd->lcd_pre_versions[0]);
-	buf->lcd_pre_versions[1]    = cpu_to_le64(lcd->lcd_pre_versions[1]);
-	buf->lcd_pre_versions[2]    = cpu_to_le64(lcd->lcd_pre_versions[2]);
-	buf->lcd_pre_versions[3]    = cpu_to_le64(lcd->lcd_pre_versions[3]);
-	buf->lcd_last_epoch	 = cpu_to_le32(lcd->lcd_last_epoch);
-	buf->lcd_first_epoch	= cpu_to_le32(lcd->lcd_first_epoch);
-}
-
-static inline __u64 lcd_last_transno(struct lsd_client_data *lcd)
-{
-	return (lcd->lcd_last_transno > lcd->lcd_last_close_transno ?
-		lcd->lcd_last_transno : lcd->lcd_last_close_transno);
-}
-
-static inline __u64 lcd_last_xid(struct lsd_client_data *lcd)
-{
-	return (lcd->lcd_last_xid > lcd->lcd_last_close_xid ?
-		lcd->lcd_last_xid : lcd->lcd_last_close_xid);
-}
-
-/****************** superblock additional info *********************/
-
-struct ll_sb_info;
-
-struct lustre_sb_info {
-	int		       lsi_flags;
-	struct obd_device	*lsi_mgc;     /* mgc obd */
-	struct lustre_mount_data *lsi_lmd;     /* mount command info */
-	struct ll_sb_info	*lsi_llsbi;   /* add'l client sbi info */
-	struct dt_device	 *lsi_dt_dev;  /* dt device to access disk fs*/
-	struct vfsmount	  *lsi_srv_mnt; /* the one server mount */
-	atomic_t	      lsi_mounts;  /* references to the srv_mnt */
-	char			  lsi_svname[MTI_NAME_MAXLEN];
-	char			  lsi_osd_obdname[64];
-	char			  lsi_osd_uuid[64];
-	struct obd_export	 *lsi_osd_exp;
-	char			  lsi_osd_type[16];
-	char			  lsi_fstype[16];
-	struct backing_dev_info   lsi_bdi;     /* each client mountpoint needs
-						  own backing_dev_info */
-};
-
-#define LSI_UMOUNT_FAILOVER	      0x00200000
-#define LSI_BDI_INITIALIZED	      0x00400000
-
-#define     s2lsi(sb)	((struct lustre_sb_info *)((sb)->s_fs_info))
-#define     s2lsi_nocast(sb) ((sb)->s_fs_info)
-
-#define     get_profile_name(sb)   (s2lsi(sb)->lsi_lmd->lmd_profile)
-#define	    get_mount_flags(sb)	   (s2lsi(sb)->lsi_lmd->lmd_flags)
-#define	    get_mntdev_name(sb)	   (s2lsi(sb)->lsi_lmd->lmd_dev)
-
-
-/****************** mount lookup info *********************/
-
-struct lustre_mount_info {
-	char		 *lmi_name;
-	struct super_block   *lmi_sb;
-	struct vfsmount      *lmi_mnt;
-	struct list_head	    lmi_list_chain;
-};
-
-/****************** prototypes *********************/
-
-/* obd_mount.c */
-int server_name2fsname(const char *svname, char *fsname, const char **endptr);
-int server_name2index(const char *svname, __u32 *idx, const char **endptr);
-int server_name2svname(const char *label, char *svname, const char **endptr,
-		       size_t svsize);
-
-int lustre_put_lsi(struct super_block *sb);
-int lustre_start_simple(char *obdname, char *type, char *uuid,
-			char *s1, char *s2, char *s3, char *s4);
-int lustre_start_mgc(struct super_block *sb);
-void lustre_register_client_fill_super(int (*cfs)(struct super_block *sb,
-						  struct vfsmount *mnt));
-void lustre_register_kill_super_cb(void (*cfs)(struct super_block *sb));
-int lustre_common_put_super(struct super_block *sb);
-
-
-int mgc_fsname2resid(char *fsname, struct ldlm_res_id *res_id, int type);
-
-/** @} disk */
-
-#endif /* _LUSTRE_DISK_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
deleted file mode 100644
index 355254689dee..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ /dev/null
@@ -1,1443 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-/** \defgroup LDLM Lustre Distributed Lock Manager
- *
- * Lustre DLM is based on VAX DLM.
- * Its two main roles are:
- *   - To provide locking assuring consistency of data on all Lustre nodes.
- *   - To allow clients to cache state protected by a lock by holding the
- *     lock until a conflicting lock is requested or it is expired by the LRU.
- *
- * @{
- */
-
-#ifndef _LUSTRE_DLM_H__
-#define _LUSTRE_DLM_H__
-
-#include "lustre_lib.h"
-#include "lustre_net.h"
-#include "lustre_import.h"
-#include "lustre_handles.h"
-#include "interval_tree.h"	/* for interval_node{}, ldlm_extent */
-#include "lu_ref.h"
-
-#include "lustre_dlm_flags.h"
-
-struct obd_ops;
-struct obd_device;
-
-extern struct kset *ldlm_ns_kset;
-extern struct kset *ldlm_svc_kset;
-
-#define OBD_LDLM_DEVICENAME  "ldlm"
-
-#define LDLM_DEFAULT_LRU_SIZE (100 * num_online_cpus())
-#define LDLM_DEFAULT_MAX_ALIVE (cfs_time_seconds(36000))
-#define LDLM_DEFAULT_PARALLEL_AST_LIMIT 1024
-
-/**
- * LDLM non-error return states
- */
-typedef enum {
-	ELDLM_OK = 0,
-
-	ELDLM_LOCK_CHANGED = 300,
-	ELDLM_LOCK_ABORTED = 301,
-	ELDLM_LOCK_REPLACED = 302,
-	ELDLM_NO_LOCK_DATA = 303,
-	ELDLM_LOCK_WOULDBLOCK = 304,
-
-	ELDLM_NAMESPACE_EXISTS = 400,
-	ELDLM_BAD_NAMESPACE    = 401
-} ldlm_error_t;
-
-/**
- * LDLM namespace type.
- * The "client" type is actually an indication that this is a narrow local view
- * into complete namespace on the server. Such namespaces cannot make any
- * decisions about lack of conflicts or do any autonomous lock granting without
- * first speaking to a server.
- */
-typedef enum {
-	LDLM_NAMESPACE_SERVER = 1 << 0,
-	LDLM_NAMESPACE_CLIENT = 1 << 1
-} ldlm_side_t;
-
-/**
- * The blocking callback is overloaded to perform two functions.  These flags
- * indicate which operation should be performed.
- */
-#define LDLM_CB_BLOCKING    1
-#define LDLM_CB_CANCELING   2
-
-/**
- * \name Lock Compatibility Matrix.
- *
- * A lock has both a type (extent, flock, inode bits, or plain) and a mode.
- * Lock types are described in their respective implementation files:
- * ldlm_{extent,flock,inodebits,plain}.c.
- *
- * There are six lock modes along with a compatibility matrix to indicate if
- * two locks are compatible.
- *
- * - EX: Exclusive mode. Before a new file is created, MDS requests EX lock
- *   on the parent.
- * - PW: Protective Write (normal write) mode. When a client requests a write
- *   lock from an OST, a lock with PW mode will be issued.
- * - PR: Protective Read (normal read) mode. When a client requests a read from
- *   an OST, a lock with PR mode will be issued. Also, if the client opens a
- *   file for execution, it is granted a lock with PR mode.
- * - CW: Concurrent Write mode. The type of lock that the MDS grants if a client
- *   requests a write lock during a file open operation.
- * - CR Concurrent Read mode. When a client performs a path lookup, MDS grants
- *   an inodebit lock with the CR mode on the intermediate path component.
- * - NL Null mode.
- *
- * <PRE>
- *       NL  CR  CW  PR  PW  EX
- *  NL    1   1   1   1   1   1
- *  CR    1   1   1   1   1   0
- *  CW    1   1   1   0   0   0
- *  PR    1   1   0   1   0   0
- *  PW    1   1   0   0   0   0
- *  EX    1   0   0   0   0   0
- * </PRE>
- */
-/** @{ */
-#define LCK_COMPAT_EX  LCK_NL
-#define LCK_COMPAT_PW  (LCK_COMPAT_EX | LCK_CR)
-#define LCK_COMPAT_PR  (LCK_COMPAT_PW | LCK_PR)
-#define LCK_COMPAT_CW  (LCK_COMPAT_PW | LCK_CW)
-#define LCK_COMPAT_CR  (LCK_COMPAT_CW | LCK_PR | LCK_PW)
-#define LCK_COMPAT_NL  (LCK_COMPAT_CR | LCK_EX | LCK_GROUP)
-#define LCK_COMPAT_GROUP  (LCK_GROUP | LCK_NL)
-#define LCK_COMPAT_COS (LCK_COS)
-/** @} Lock Compatibility Matrix */
-
-extern ldlm_mode_t lck_compat_array[];
-
-static inline void lockmode_verify(ldlm_mode_t mode)
-{
-       LASSERT(mode > LCK_MINMODE && mode < LCK_MAXMODE);
-}
-
-static inline int lockmode_compat(ldlm_mode_t exist_mode, ldlm_mode_t new_mode)
-{
-       return (lck_compat_array[exist_mode] & new_mode);
-}
-
-/*
- *
- * cluster name spaces
- *
- */
-
-#define DLM_OST_NAMESPACE 1
-#define DLM_MDS_NAMESPACE 2
-
-/* XXX
-   - do we just separate this by security domains and use a prefix for
-     multiple namespaces in the same domain?
-   -
-*/
-
-/**
- * Locking rules for LDLM:
- *
- * lr_lock
- *
- * lr_lock
- *     waiting_locks_spinlock
- *
- * lr_lock
- *     led_lock
- *
- * lr_lock
- *     ns_lock
- *
- * lr_lvb_mutex
- *     lr_lock
- *
- */
-
-struct ldlm_pool;
-struct ldlm_lock;
-struct ldlm_resource;
-struct ldlm_namespace;
-
-/**
- * Operations on LDLM pools.
- * LDLM pool is a pool of locks in the namespace without any implicitly
- * specified limits.
- * Locks in the pool are organized in LRU.
- * Local memory pressure or server instructions (e.g. mempressure on server)
- * can trigger freeing of locks from the pool
- */
-struct ldlm_pool_ops {
-	/** Recalculate pool \a pl usage */
-	int (*po_recalc)(struct ldlm_pool *pl);
-	/** Cancel at least \a nr locks from pool \a pl */
-	int (*po_shrink)(struct ldlm_pool *pl, int nr,
-			 gfp_t gfp_mask);
-	int (*po_setup)(struct ldlm_pool *pl, int limit);
-};
-
-/** One second for pools thread check interval. Each pool has own period. */
-#define LDLM_POOLS_THREAD_PERIOD (1)
-
-/** ~6% margin for modest pools. See ldlm_pool.c for details. */
-#define LDLM_POOLS_MODEST_MARGIN_SHIFT (4)
-
-/** Default recalc period for server side pools in sec. */
-#define LDLM_POOL_SRV_DEF_RECALC_PERIOD (1)
-
-/** Default recalc period for client side pools in sec. */
-#define LDLM_POOL_CLI_DEF_RECALC_PERIOD (10)
-
-/**
- * LDLM pool structure to track granted locks.
- * For purposes of determining when to release locks on e.g. memory pressure.
- * This feature is commonly referred to as lru_resize.
- */
-struct ldlm_pool {
-	/** Pool debugfs directory. */
-	struct dentry		*pl_debugfs_entry;
-	/** Pool name, must be long enough to hold compound proc entry name. */
-	char			pl_name[100];
-	/** Lock for protecting SLV/CLV updates. */
-	spinlock_t		pl_lock;
-	/** Number of allowed locks in in pool, both, client and server side. */
-	atomic_t		pl_limit;
-	/** Number of granted locks in */
-	atomic_t		pl_granted;
-	/** Grant rate per T. */
-	atomic_t		pl_grant_rate;
-	/** Cancel rate per T. */
-	atomic_t		pl_cancel_rate;
-	/** Server lock volume (SLV). Protected by pl_lock. */
-	__u64			pl_server_lock_volume;
-	/** Current biggest client lock volume. Protected by pl_lock. */
-	__u64			pl_client_lock_volume;
-	/** Lock volume factor. SLV on client is calculated as following:
-	 *  server_slv * lock_volume_factor. */
-	atomic_t		pl_lock_volume_factor;
-	/** Time when last SLV from server was obtained. */
-	time_t			pl_recalc_time;
-	/** Recalculation period for pool. */
-	time_t			pl_recalc_period;
-	/** Recalculation and shrink operations. */
-	const struct ldlm_pool_ops	*pl_ops;
-	/** Number of planned locks for next period. */
-	int			pl_grant_plan;
-	/** Pool statistics. */
-	struct lprocfs_stats	*pl_stats;
-
-	/* sysfs object */
-	struct kobject		 pl_kobj;
-	struct completion	 pl_kobj_unregister;
-};
-
-typedef int (*ldlm_res_policy)(struct ldlm_namespace *, struct ldlm_lock **,
-			       void *req_cookie, ldlm_mode_t mode, __u64 flags,
-			       void *data);
-
-typedef int (*ldlm_cancel_for_recovery)(struct ldlm_lock *lock);
-
-/**
- * LVB operations.
- * LVB is Lock Value Block. This is a special opaque (to LDLM) value that could
- * be associated with an LDLM lock and transferred from client to server and
- * back.
- *
- * Currently LVBs are used by:
- *  - OSC-OST code to maintain current object size/times
- *  - layout lock code to return the layout when the layout lock is granted
- */
-struct ldlm_valblock_ops {
-	int (*lvbo_init)(struct ldlm_resource *res);
-	int (*lvbo_update)(struct ldlm_resource *res,
-			   struct ptlrpc_request *r,
-			   int increase);
-	int (*lvbo_free)(struct ldlm_resource *res);
-	/* Return size of lvb data appropriate RPC size can be reserved */
-	int (*lvbo_size)(struct ldlm_lock *lock);
-	/* Called to fill in lvb data to RPC buffer @buf */
-	int (*lvbo_fill)(struct ldlm_lock *lock, void *buf, int buflen);
-};
-
-/**
- * LDLM pools related, type of lock pool in the namespace.
- * Greedy means release cached locks aggressively
- */
-typedef enum {
-	LDLM_NAMESPACE_GREEDY = 1 << 0,
-	LDLM_NAMESPACE_MODEST = 1 << 1
-} ldlm_appetite_t;
-
-struct ldlm_ns_bucket {
-	/** back pointer to namespace */
-	struct ldlm_namespace      *nsb_namespace;
-	/**
-	 * Estimated lock callback time.  Used by adaptive timeout code to
-	 * avoid spurious client evictions due to unresponsiveness when in
-	 * fact the network or overall system load is at fault
-	 */
-	struct adaptive_timeout     nsb_at_estimate;
-};
-
-enum {
-	/** LDLM namespace lock stats */
-	LDLM_NSS_LOCKS	  = 0,
-	LDLM_NSS_LAST
-};
-
-typedef enum {
-	/** invalid type */
-	LDLM_NS_TYPE_UNKNOWN    = 0,
-	/** mdc namespace */
-	LDLM_NS_TYPE_MDC,
-	/** mds namespace */
-	LDLM_NS_TYPE_MDT,
-	/** osc namespace */
-	LDLM_NS_TYPE_OSC,
-	/** ost namespace */
-	LDLM_NS_TYPE_OST,
-	/** mgc namespace */
-	LDLM_NS_TYPE_MGC,
-	/** mgs namespace */
-	LDLM_NS_TYPE_MGT,
-} ldlm_ns_type_t;
-
-/**
- * LDLM Namespace.
- *
- * Namespace serves to contain locks related to a particular service.
- * There are two kinds of namespaces:
- * - Server namespace has knowledge of all locks and is therefore authoritative
- *   to make decisions like what locks could be granted and what conflicts
- *   exist during new lock enqueue.
- * - Client namespace only has limited knowledge about locks in the namespace,
- *   only seeing locks held by the client.
- *
- * Every Lustre service has one server namespace present on the server serving
- * that service. Every client connected to the service has a client namespace
- * for it.
- * Every lock obtained by client in that namespace is actually represented by
- * two in-memory locks. One on the server and one on the client. The locks are
- * linked by a special cookie by which one node can tell to the other which lock
- * it actually means during communications. Such locks are called remote locks.
- * The locks held by server only without any reference to a client are called
- * local locks.
- */
-struct ldlm_namespace {
-	/** Backward link to OBD, required for LDLM pool to store new SLV. */
-	struct obd_device	*ns_obd;
-
-	/** Flag indicating if namespace is on client instead of server */
-	ldlm_side_t		ns_client;
-
-	/** Resource hash table for namespace. */
-	struct cfs_hash		*ns_rs_hash;
-
-	/** serialize */
-	spinlock_t		ns_lock;
-
-	/** big refcount (by bucket) */
-	atomic_t		ns_bref;
-
-	/**
-	 * Namespace connect flags supported by server (may be changed via
-	 * /proc, LRU resize may be disabled/enabled).
-	 */
-	__u64			ns_connect_flags;
-
-	/** Client side original connect flags supported by server. */
-	__u64			ns_orig_connect_flags;
-
-	/* namespace debugfs dir entry */
-	struct dentry		*ns_debugfs_entry;
-
-	/**
-	 * Position in global namespace list linking all namespaces on
-	 * the node.
-	 */
-	struct list_head		ns_list_chain;
-
-	/**
-	 * List of unused locks for this namespace. This list is also called
-	 * LRU lock list.
-	 * Unused locks are locks with zero reader/writer reference counts.
-	 * This list is only used on clients for lock caching purposes.
-	 * When we want to release some locks voluntarily or if server wants
-	 * us to release some locks due to e.g. memory pressure, we take locks
-	 * to release from the head of this list.
-	 * Locks are linked via l_lru field in \see struct ldlm_lock.
-	 */
-	struct list_head		ns_unused_list;
-	/** Number of locks in the LRU list above */
-	int			ns_nr_unused;
-
-	/**
-	 * Maximum number of locks permitted in the LRU. If 0, means locks
-	 * are managed by pools and there is no preset limit, rather it is all
-	 * controlled by available memory on this client and on server.
-	 */
-	unsigned int		ns_max_unused;
-	/** Maximum allowed age (last used time) for locks in the LRU */
-	unsigned int		ns_max_age;
-
-	/**
-	 * Used to rate-limit ldlm_namespace_dump calls.
-	 * \see ldlm_namespace_dump. Increased by 10 seconds every time
-	 * it is called.
-	 */
-	unsigned long		ns_next_dump;
-
-	/** "policy" function that does actual lock conflict determination */
-	ldlm_res_policy		ns_policy;
-
-	/**
-	 * LVB operations for this namespace.
-	 * \see struct ldlm_valblock_ops
-	 */
-	struct ldlm_valblock_ops *ns_lvbo;
-
-	/**
-	 * Used by filter code to store pointer to OBD of the service.
-	 * Should be dropped in favor of \a ns_obd
-	 */
-	void			*ns_lvbp;
-
-	/**
-	 * Wait queue used by __ldlm_namespace_free. Gets woken up every time
-	 * a resource is removed.
-	 */
-	wait_queue_head_t		ns_waitq;
-	/** LDLM pool structure for this namespace */
-	struct ldlm_pool	ns_pool;
-	/** Definition of how eagerly unused locks will be released from LRU */
-	ldlm_appetite_t		ns_appetite;
-
-	/** Limit of parallel AST RPC count. */
-	unsigned		ns_max_parallel_ast;
-
-	/** Callback to cancel locks before replaying it during recovery. */
-	ldlm_cancel_for_recovery ns_cancel_for_recovery;
-
-	/** LDLM lock stats */
-	struct lprocfs_stats	*ns_stats;
-
-	/**
-	 * Flag to indicate namespace is being freed. Used to determine if
-	 * recalculation of LDLM pool statistics should be skipped.
-	 */
-	unsigned		ns_stopping:1;
-
-	struct kobject		ns_kobj; /* sysfs object */
-	struct completion	ns_kobj_unregister;
-};
-
-/**
- * Returns 1 if namespace \a ns is a client namespace.
- */
-static inline int ns_is_client(struct ldlm_namespace *ns)
-{
-	LASSERT(ns != NULL);
-	LASSERT(!(ns->ns_client & ~(LDLM_NAMESPACE_CLIENT |
-				    LDLM_NAMESPACE_SERVER)));
-	LASSERT(ns->ns_client == LDLM_NAMESPACE_CLIENT ||
-		ns->ns_client == LDLM_NAMESPACE_SERVER);
-	return ns->ns_client == LDLM_NAMESPACE_CLIENT;
-}
-
-/**
- * Returns 1 if namespace \a ns is a server namespace.
- */
-static inline int ns_is_server(struct ldlm_namespace *ns)
-{
-	LASSERT(ns != NULL);
-	LASSERT(!(ns->ns_client & ~(LDLM_NAMESPACE_CLIENT |
-				    LDLM_NAMESPACE_SERVER)));
-	LASSERT(ns->ns_client == LDLM_NAMESPACE_CLIENT ||
-		ns->ns_client == LDLM_NAMESPACE_SERVER);
-	return ns->ns_client == LDLM_NAMESPACE_SERVER;
-}
-
-/**
- * Returns 1 if namespace \a ns supports early lock cancel (ELC).
- */
-static inline int ns_connect_cancelset(struct ldlm_namespace *ns)
-{
-	LASSERT(ns != NULL);
-	return !!(ns->ns_connect_flags & OBD_CONNECT_CANCELSET);
-}
-
-/**
- * Returns 1 if this namespace supports lru_resize.
- */
-static inline int ns_connect_lru_resize(struct ldlm_namespace *ns)
-{
-	LASSERT(ns != NULL);
-	return !!(ns->ns_connect_flags & OBD_CONNECT_LRU_RESIZE);
-}
-
-static inline void ns_register_cancel(struct ldlm_namespace *ns,
-				      ldlm_cancel_for_recovery arg)
-{
-	LASSERT(ns != NULL);
-	ns->ns_cancel_for_recovery = arg;
-}
-
-struct ldlm_lock;
-
-/** Type for blocking callback function of a lock. */
-typedef int (*ldlm_blocking_callback)(struct ldlm_lock *lock,
-				      struct ldlm_lock_desc *new, void *data,
-				      int flag);
-/** Type for completion callback function of a lock. */
-typedef int (*ldlm_completion_callback)(struct ldlm_lock *lock, __u64 flags,
-					void *data);
-/** Type for glimpse callback function of a lock. */
-typedef int (*ldlm_glimpse_callback)(struct ldlm_lock *lock, void *data);
-
-/** Work list for sending GL ASTs to multiple locks. */
-struct ldlm_glimpse_work {
-	struct ldlm_lock	*gl_lock; /* lock to glimpse */
-	struct list_head		 gl_list; /* linkage to other gl work structs */
-	__u32			 gl_flags;/* see LDLM_GL_WORK_* below */
-	union ldlm_gl_desc	*gl_desc; /* glimpse descriptor to be packed in
-					   * glimpse callback request */
-};
-
-/** The ldlm_glimpse_work is allocated on the stack and should not be freed. */
-#define LDLM_GL_WORK_NOFREE 0x1
-
-/** Interval node data for each LDLM_EXTENT lock. */
-struct ldlm_interval {
-	struct interval_node	li_node;  /* node for tree management */
-	struct list_head		li_group; /* the locks which have the same
-					   * policy - group of the policy */
-};
-#define to_ldlm_interval(n) container_of(n, struct ldlm_interval, li_node)
-
-/**
- * Interval tree for extent locks.
- * The interval tree must be accessed under the resource lock.
- * Interval trees are used for granted extent locks to speed up conflicts
- * lookup. See ldlm/interval_tree.c for more details.
- */
-struct ldlm_interval_tree {
-	/** Tree size. */
-	int			lit_size;
-	ldlm_mode_t		lit_mode;  /* lock mode */
-	struct interval_node	*lit_root; /* actual ldlm_interval */
-};
-
-/** Whether to track references to exports by LDLM locks. */
-#define LUSTRE_TRACKS_LOCK_EXP_REFS (0)
-
-/** Cancel flags. */
-typedef enum {
-	LCF_ASYNC      = 0x1, /* Cancel locks asynchronously. */
-	LCF_LOCAL      = 0x2, /* Cancel locks locally, not notifing server */
-	LCF_BL_AST     = 0x4, /* Cancel locks marked as LDLM_FL_BL_AST
-			       * in the same RPC */
-} ldlm_cancel_flags_t;
-
-struct ldlm_flock {
-	__u64 start;
-	__u64 end;
-	__u64 owner;
-	__u64 blocking_owner;
-	struct obd_export *blocking_export;
-	/* Protected by the hash lock */
-	__u32 blocking_refs;
-	__u32 pid;
-};
-
-typedef union {
-	struct ldlm_extent l_extent;
-	struct ldlm_flock l_flock;
-	struct ldlm_inodebits l_inodebits;
-} ldlm_policy_data_t;
-
-void ldlm_convert_policy_to_wire(ldlm_type_t type,
-				 const ldlm_policy_data_t *lpolicy,
-				 ldlm_wire_policy_data_t *wpolicy);
-void ldlm_convert_policy_to_local(struct obd_export *exp, ldlm_type_t type,
-				  const ldlm_wire_policy_data_t *wpolicy,
-				  ldlm_policy_data_t *lpolicy);
-
-enum lvb_type {
-	LVB_T_NONE	= 0,
-	LVB_T_OST	= 1,
-	LVB_T_LQUOTA	= 2,
-	LVB_T_LAYOUT	= 3,
-};
-
-/**
- * LDLM lock structure
- *
- * Represents a single LDLM lock and its state in memory. Each lock is
- * associated with a single ldlm_resource, the object which is being
- * locked. There may be multiple ldlm_locks on a single resource,
- * depending on the lock type and whether the locks are conflicting or
- * not.
- */
-struct ldlm_lock {
-	/**
-	 * Local lock handle.
-	 * When remote side wants to tell us about a lock, they address
-	 * it by this opaque handle.  The handle does not hold a
-	 * reference on the ldlm_lock, so it can be safely passed to
-	 * other threads or nodes. When the lock needs to be accessed
-	 * from the handle, it is looked up again in the lock table, and
-	 * may no longer exist.
-	 *
-	 * Must be first in the structure.
-	 */
-	struct portals_handle	l_handle;
-	/**
-	 * Lock reference count.
-	 * This is how many users have pointers to actual structure, so that
-	 * we do not accidentally free lock structure that is in use.
-	 */
-	atomic_t		l_refc;
-	/**
-	 * Internal spinlock protects l_resource.  We should hold this lock
-	 * first before taking res_lock.
-	 */
-	spinlock_t		l_lock;
-	/**
-	 * Pointer to actual resource this lock is in.
-	 * ldlm_lock_change_resource() can change this.
-	 */
-	struct ldlm_resource	*l_resource;
-	/**
-	 * List item for client side LRU list.
-	 * Protected by ns_lock in struct ldlm_namespace.
-	 */
-	struct list_head		l_lru;
-	/**
-	 * Linkage to resource's lock queues according to current lock state.
-	 * (could be granted, waiting or converting)
-	 * Protected by lr_lock in struct ldlm_resource.
-	 */
-	struct list_head		l_res_link;
-	/**
-	 * Tree node for ldlm_extent.
-	 */
-	struct ldlm_interval	*l_tree_node;
-	/**
-	 * Per export hash of locks.
-	 * Protected by per-bucket exp->exp_lock_hash locks.
-	 */
-	struct hlist_node	l_exp_hash;
-	/**
-	 * Per export hash of flock locks.
-	 * Protected by per-bucket exp->exp_flock_hash locks.
-	 */
-	struct hlist_node	l_exp_flock_hash;
-	/**
-	 * Requested mode.
-	 * Protected by lr_lock.
-	 */
-	ldlm_mode_t		l_req_mode;
-	/**
-	 * Granted mode, also protected by lr_lock.
-	 */
-	ldlm_mode_t		l_granted_mode;
-	/** Lock completion handler pointer. Called when lock is granted. */
-	ldlm_completion_callback l_completion_ast;
-	/**
-	 * Lock blocking AST handler pointer.
-	 * It plays two roles:
-	 * - as a notification of an attempt to queue a conflicting lock (once)
-	 * - as a notification when the lock is being cancelled.
-	 *
-	 * As such it's typically called twice: once for the initial conflict
-	 * and then once more when the last user went away and the lock is
-	 * cancelled (could happen recursively).
-	 */
-	ldlm_blocking_callback	l_blocking_ast;
-	/**
-	 * Lock glimpse handler.
-	 * Glimpse handler is used to obtain LVB updates from a client by
-	 * server
-	 */
-	ldlm_glimpse_callback	l_glimpse_ast;
-
-	/**
-	 * Lock export.
-	 * This is a pointer to actual client export for locks that were granted
-	 * to clients. Used server-side.
-	 */
-	struct obd_export	*l_export;
-	/**
-	 * Lock connection export.
-	 * Pointer to server export on a client.
-	 */
-	struct obd_export	*l_conn_export;
-
-	/**
-	 * Remote lock handle.
-	 * If the lock is remote, this is the handle of the other side lock
-	 * (l_handle)
-	 */
-	struct lustre_handle	l_remote_handle;
-
-	/**
-	 * Representation of private data specific for a lock type.
-	 * Examples are: extent range for extent lock or bitmask for ibits locks
-	 */
-	ldlm_policy_data_t	l_policy_data;
-
-	/**
-	 * Lock state flags. Protected by lr_lock.
-	 * \see lustre_dlm_flags.h where the bits are defined.
-	 */
-	__u64			l_flags;
-
-	/**
-	 * Lock r/w usage counters.
-	 * Protected by lr_lock.
-	 */
-	__u32			l_readers;
-	__u32			l_writers;
-	/**
-	 * If the lock is granted, a process sleeps on this waitq to learn when
-	 * it's no longer in use.  If the lock is not granted, a process sleeps
-	 * on this waitq to learn when it becomes granted.
-	 */
-	wait_queue_head_t		l_waitq;
-
-	/**
-	 * Seconds. It will be updated if there is any activity related to
-	 * the lock, e.g. enqueue the lock or send blocking AST.
-	 */
-	unsigned long		l_last_activity;
-
-	/**
-	 * Time last used by e.g. being matched by lock match.
-	 * Jiffies. Should be converted to time if needed.
-	 */
-	unsigned long		l_last_used;
-
-	/** Originally requested extent for the extent lock. */
-	struct ldlm_extent	l_req_extent;
-
-	/*
-	 * Client-side-only members.
-	 */
-
-	enum lvb_type	      l_lvb_type;
-
-	/**
-	 * Temporary storage for a LVB received during an enqueue operation.
-	 */
-	__u32			l_lvb_len;
-	void			*l_lvb_data;
-
-	/** Private storage for lock user. Opaque to LDLM. */
-	void			*l_ast_data;
-
-	/*
-	 * Server-side-only members.
-	 */
-
-	/**
-	 * Connection cookie for the client originating the operation.
-	 * Used by Commit on Share (COS) code. Currently only used for
-	 * inodebits locks on MDS.
-	 */
-	__u64			l_client_cookie;
-
-	/**
-	 * List item for locks waiting for cancellation from clients.
-	 * The lists this could be linked into are:
-	 * waiting_locks_list (protected by waiting_locks_spinlock),
-	 * then if the lock timed out, it is moved to
-	 * expired_lock_thread.elt_expired_locks for further processing.
-	 * Protected by elt_lock.
-	 */
-	struct list_head		l_pending_chain;
-
-	/**
-	 * Set when lock is sent a blocking AST. Time in seconds when timeout
-	 * is reached and client holding this lock could be evicted.
-	 * This timeout could be further extended by e.g. certain IO activity
-	 * under this lock.
-	 * \see ost_rw_prolong_locks
-	 */
-	unsigned long		l_callback_timeout;
-
-	/** Local PID of process which created this lock. */
-	__u32			l_pid;
-
-	/**
-	 * Number of times blocking AST was sent for this lock.
-	 * This is for debugging. Valid values are 0 and 1, if there is an
-	 * attempt to send blocking AST more than once, an assertion would be
-	 * hit. \see ldlm_work_bl_ast_lock
-	 */
-	int			l_bl_ast_run;
-	/** List item ldlm_add_ast_work_item() for case of blocking ASTs. */
-	struct list_head		l_bl_ast;
-	/** List item ldlm_add_ast_work_item() for case of completion ASTs. */
-	struct list_head		l_cp_ast;
-	/** For ldlm_add_ast_work_item() for "revoke" AST used in COS. */
-	struct list_head		l_rk_ast;
-
-	/**
-	 * Pointer to a conflicting lock that caused blocking AST to be sent
-	 * for this lock
-	 */
-	struct ldlm_lock	*l_blocking_lock;
-
-	/**
-	 * Protected by lr_lock, linkages to "skip lists".
-	 * For more explanations of skip lists see ldlm/ldlm_inodebits.c
-	 */
-	struct list_head		l_sl_mode;
-	struct list_head		l_sl_policy;
-
-	/** Reference tracking structure to debug leaked locks. */
-	struct lu_ref		l_reference;
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-	/* Debugging stuff for bug 20498, for tracking export references. */
-	/** number of export references taken */
-	int			l_exp_refs_nr;
-	/** link all locks referencing one export */
-	struct list_head		l_exp_refs_link;
-	/** referenced export object */
-	struct obd_export	*l_exp_refs_target;
-#endif
-	/**
-	 * export blocking dlm lock list, protected by
-	 * l_export->exp_bl_list_lock.
-	 * Lock order of waiting_lists_spinlock, exp_bl_list_lock and res lock
-	 * is: res lock -> exp_bl_list_lock -> wanting_lists_spinlock.
-	 */
-	struct list_head		l_exp_list;
-};
-
-/**
- * LDLM resource description.
- * Basically, resource is a representation for a single object.
- * Object has a name which is currently 4 64-bit integers. LDLM user is
- * responsible for creation of a mapping between objects it wants to be
- * protected and resource names.
- *
- * A resource can only hold locks of a single lock type, though there may be
- * multiple ldlm_locks on a single resource, depending on the lock type and
- * whether the locks are conflicting or not.
- */
-struct ldlm_resource {
-	struct ldlm_ns_bucket	*lr_ns_bucket;
-
-	/**
-	 * List item for list in namespace hash.
-	 * protected by ns_lock
-	 */
-	struct hlist_node	lr_hash;
-
-	/** Spinlock to protect locks under this resource. */
-	spinlock_t		lr_lock;
-
-	/**
-	 * protected by lr_lock
-	 * @{ */
-	/** List of locks in granted state */
-	struct list_head		lr_granted;
-	/** List of locks waiting to change their granted mode (converted) */
-	struct list_head		lr_converting;
-	/**
-	 * List of locks that could not be granted due to conflicts and
-	 * that are waiting for conflicts to go away */
-	struct list_head		lr_waiting;
-	/** @} */
-
-	/* XXX No longer needed? Remove ASAP */
-	ldlm_mode_t		lr_most_restr;
-
-	/** Type of locks this resource can hold. Only one type per resource. */
-	ldlm_type_t		lr_type; /* LDLM_{PLAIN,EXTENT,FLOCK,IBITS} */
-
-	/** Resource name */
-	struct ldlm_res_id	lr_name;
-	/** Reference count for this resource */
-	atomic_t		lr_refcount;
-
-	/**
-	 * Interval trees (only for extent locks) for all modes of this resource
-	 */
-	struct ldlm_interval_tree lr_itree[LCK_MODE_NUM];
-
-	/**
-	 * Server-side-only lock value block elements.
-	 * To serialize lvbo_init.
-	 */
-	struct mutex		lr_lvb_mutex;
-	int			lr_lvb_len;
-	/** protected by lr_lock */
-	void			*lr_lvb_data;
-
-	/** When the resource was considered as contended. */
-	unsigned long		lr_contention_time;
-	/** List of references to this resource. For debugging. */
-	struct lu_ref		lr_reference;
-
-	struct inode		*lr_lvb_inode;
-};
-
-static inline bool ldlm_has_layout(struct ldlm_lock *lock)
-{
-	return lock->l_resource->lr_type == LDLM_IBITS &&
-		lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_LAYOUT;
-}
-
-static inline char *
-ldlm_ns_name(struct ldlm_namespace *ns)
-{
-	return ns->ns_rs_hash->hs_name;
-}
-
-static inline struct ldlm_namespace *
-ldlm_res_to_ns(struct ldlm_resource *res)
-{
-	return res->lr_ns_bucket->nsb_namespace;
-}
-
-static inline struct ldlm_namespace *
-ldlm_lock_to_ns(struct ldlm_lock *lock)
-{
-	return ldlm_res_to_ns(lock->l_resource);
-}
-
-static inline char *
-ldlm_lock_to_ns_name(struct ldlm_lock *lock)
-{
-	return ldlm_ns_name(ldlm_lock_to_ns(lock));
-}
-
-static inline struct adaptive_timeout *
-ldlm_lock_to_ns_at(struct ldlm_lock *lock)
-{
-	return &lock->l_resource->lr_ns_bucket->nsb_at_estimate;
-}
-
-static inline int ldlm_lvbo_init(struct ldlm_resource *res)
-{
-	struct ldlm_namespace *ns = ldlm_res_to_ns(res);
-
-	if (ns->ns_lvbo != NULL && ns->ns_lvbo->lvbo_init != NULL)
-		return ns->ns_lvbo->lvbo_init(res);
-
-	return 0;
-}
-
-static inline int ldlm_lvbo_size(struct ldlm_lock *lock)
-{
-	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-
-	if (ns->ns_lvbo != NULL && ns->ns_lvbo->lvbo_size != NULL)
-		return ns->ns_lvbo->lvbo_size(lock);
-
-	return 0;
-}
-
-static inline int ldlm_lvbo_fill(struct ldlm_lock *lock, void *buf, int len)
-{
-	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-
-	if (ns->ns_lvbo != NULL) {
-		LASSERT(ns->ns_lvbo->lvbo_fill != NULL);
-		return ns->ns_lvbo->lvbo_fill(lock, buf, len);
-	}
-	return 0;
-}
-
-struct ldlm_ast_work {
-	struct ldlm_lock      *w_lock;
-	int		    w_blocking;
-	struct ldlm_lock_desc  w_desc;
-	struct list_head	     w_list;
-	int		    w_flags;
-	void		  *w_data;
-	int		    w_datalen;
-};
-
-/**
- * Common ldlm_enqueue parameters
- */
-struct ldlm_enqueue_info {
-	__u32 ei_type;   /** Type of the lock being enqueued. */
-	__u32 ei_mode;   /** Mode of the lock being enqueued. */
-	void *ei_cb_bl;  /** blocking lock callback */
-	void *ei_cb_cp;  /** lock completion callback */
-	void *ei_cb_gl;  /** lock glimpse callback */
-	void *ei_cbdata; /** Data to be passed into callbacks. */
-};
-
-extern struct obd_ops ldlm_obd_ops;
-
-extern char *ldlm_lockname[];
-extern char *ldlm_typename[];
-char *ldlm_it2str(int it);
-
-/**
- * Just a fancy CDEBUG call with log level preset to LDLM_DEBUG.
- * For the cases where we do not have actual lock to print along
- * with a debugging message that is ldlm-related
- */
-#define LDLM_DEBUG_NOLOCK(format, a...)			\
-	CDEBUG(D_DLMTRACE, "### " format "\n" , ##a)
-
-/**
- * Support function for lock information printing into debug logs.
- * \see LDLM_DEBUG
- */
-#define ldlm_lock_debug(msgdata, mask, cdls, lock, fmt, a...) do {      \
-	CFS_CHECK_STACK(msgdata, mask, cdls);			   \
-									\
-	if (((mask) & D_CANTMASK) != 0 ||			       \
-	    ((libcfs_debug & (mask)) != 0 &&			    \
-	     (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0))	  \
-		_ldlm_lock_debug(lock, msgdata, fmt, ##a);	      \
-} while (0)
-
-void _ldlm_lock_debug(struct ldlm_lock *lock,
-		      struct libcfs_debug_msg_data *data,
-		      const char *fmt, ...)
-	__printf(3, 4);
-
-/**
- * Rate-limited version of lock printing function.
- */
-#define LDLM_DEBUG_LIMIT(mask, lock, fmt, a...) do {			 \
-	static struct cfs_debug_limit_state _ldlm_cdls;			   \
-	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, &_ldlm_cdls);	      \
-	ldlm_lock_debug(&msgdata, mask, &_ldlm_cdls, lock, "### " fmt , ##a);\
-} while (0)
-
-#define LDLM_ERROR(lock, fmt, a...) LDLM_DEBUG_LIMIT(D_ERROR, lock, fmt, ## a)
-#define LDLM_WARN(lock, fmt, a...)  LDLM_DEBUG_LIMIT(D_WARNING, lock, fmt, ## a)
-
-/** Non-rate-limited lock printing function for debugging purposes. */
-#define LDLM_DEBUG(lock, fmt, a...)   do {				  \
-	if (likely(lock != NULL)) {					    \
-		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_DLMTRACE, NULL);      \
-		ldlm_lock_debug(&msgdata, D_DLMTRACE, NULL, lock,	    \
-				"### " fmt , ##a);			    \
-	} else {							    \
-		LDLM_DEBUG_NOLOCK("no dlm lock: " fmt, ##a);		    \
-	}								    \
-} while (0)
-
-typedef int (*ldlm_processing_policy)(struct ldlm_lock *lock, __u64 *flags,
-				      int first_enq, ldlm_error_t *err,
-				      struct list_head *work_list);
-
-/**
- * Return values for lock iterators.
- * Also used during deciding of lock grants and cancellations.
- */
-#define LDLM_ITER_CONTINUE 1 /* keep iterating */
-#define LDLM_ITER_STOP     2 /* stop iterating */
-
-typedef int (*ldlm_iterator_t)(struct ldlm_lock *, void *);
-typedef int (*ldlm_res_iterator_t)(struct ldlm_resource *, void *);
-
-/** \defgroup ldlm_iterator Lock iterators
- *
- * LDLM provides for a way to iterate through every lock on a resource or
- * namespace or every resource in a namespace.
- * @{ */
-int ldlm_resource_foreach(struct ldlm_resource *res, ldlm_iterator_t iter,
-			  void *closure);
-void ldlm_namespace_foreach(struct ldlm_namespace *ns, ldlm_iterator_t iter,
-			    void *closure);
-int ldlm_resource_iterate(struct ldlm_namespace *, const struct ldlm_res_id *,
-			  ldlm_iterator_t iter, void *data);
-/** @} ldlm_iterator */
-
-int ldlm_replay_locks(struct obd_import *imp);
-
-/* ldlm_flock.c */
-int ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data);
-
-/* ldlm_extent.c */
-__u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms);
-
-struct ldlm_callback_suite {
-	ldlm_completion_callback lcs_completion;
-	ldlm_blocking_callback   lcs_blocking;
-	ldlm_glimpse_callback    lcs_glimpse;
-};
-
-/* ldlm_lockd.c */
-int ldlm_del_waiting_lock(struct ldlm_lock *lock);
-int ldlm_refresh_waiting_lock(struct ldlm_lock *lock, int timeout);
-int ldlm_get_ref(void);
-void ldlm_put_ref(void);
-int ldlm_init_export(struct obd_export *exp);
-void ldlm_destroy_export(struct obd_export *exp);
-struct ldlm_lock *ldlm_request_lock(struct ptlrpc_request *req);
-
-/* ldlm_lock.c */
-void ldlm_register_intent(struct ldlm_namespace *ns, ldlm_res_policy arg);
-void ldlm_lock2handle(const struct ldlm_lock *lock,
-		      struct lustre_handle *lockh);
-struct ldlm_lock *__ldlm_handle2lock(const struct lustre_handle *, __u64 flags);
-void ldlm_cancel_callback(struct ldlm_lock *);
-int ldlm_lock_remove_from_lru(struct ldlm_lock *);
-int ldlm_lock_set_data(struct lustre_handle *, void *);
-
-/**
- * Obtain a lock reference by its handle.
- */
-static inline struct ldlm_lock *ldlm_handle2lock(const struct lustre_handle *h)
-{
-	return __ldlm_handle2lock(h, 0);
-}
-
-#define LDLM_LOCK_REF_DEL(lock) \
-	lu_ref_del(&lock->l_reference, "handle", current)
-
-static inline struct ldlm_lock *
-ldlm_handle2lock_long(const struct lustre_handle *h, __u64 flags)
-{
-	struct ldlm_lock *lock;
-
-	lock = __ldlm_handle2lock(h, flags);
-	if (lock != NULL)
-		LDLM_LOCK_REF_DEL(lock);
-	return lock;
-}
-
-/**
- * Update Lock Value Block Operations (LVBO) on a resource taking into account
- * data from request \a r
- */
-static inline int ldlm_res_lvbo_update(struct ldlm_resource *res,
-				       struct ptlrpc_request *r, int increase)
-{
-	if (ldlm_res_to_ns(res)->ns_lvbo &&
-	    ldlm_res_to_ns(res)->ns_lvbo->lvbo_update) {
-		return ldlm_res_to_ns(res)->ns_lvbo->lvbo_update(res, r,
-								 increase);
-	}
-	return 0;
-}
-
-int ldlm_error2errno(ldlm_error_t error);
-ldlm_error_t ldlm_errno2error(int err_no); /* don't call it `errno': this
-					    * confuses user-space. */
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-void ldlm_dump_export_locks(struct obd_export *exp);
-#endif
-
-/**
- * Release a temporary lock reference obtained by ldlm_handle2lock() or
- * __ldlm_handle2lock().
- */
-#define LDLM_LOCK_PUT(lock)		     \
-do {					    \
-	LDLM_LOCK_REF_DEL(lock);		\
-	/*LDLM_DEBUG((lock), "put");*/	  \
-	ldlm_lock_put(lock);		    \
-} while (0)
-
-/**
- * Release a lock reference obtained by some other means (see
- * LDLM_LOCK_PUT()).
- */
-#define LDLM_LOCK_RELEASE(lock)		 \
-do {					    \
-	/*LDLM_DEBUG((lock), "put");*/	  \
-	ldlm_lock_put(lock);		    \
-} while (0)
-
-#define LDLM_LOCK_GET(lock)		     \
-({					      \
-	ldlm_lock_get(lock);		    \
-	/*LDLM_DEBUG((lock), "get");*/	  \
-	lock;				   \
-})
-
-#define ldlm_lock_list_put(head, member, count)		     \
-({								  \
-	struct ldlm_lock *_lock, *_next;			    \
-	int c = count;					      \
-	list_for_each_entry_safe(_lock, _next, head, member) {  \
-		if (c-- == 0)				       \
-			break;				      \
-		list_del_init(&_lock->member);		  \
-		LDLM_LOCK_RELEASE(_lock);			   \
-	}							   \
-	LASSERT(c <= 0);					    \
-})
-
-struct ldlm_lock *ldlm_lock_get(struct ldlm_lock *lock);
-void ldlm_lock_put(struct ldlm_lock *lock);
-void ldlm_lock_destroy(struct ldlm_lock *lock);
-void ldlm_lock2desc(struct ldlm_lock *lock, struct ldlm_lock_desc *desc);
-void ldlm_lock_addref(struct lustre_handle *lockh, __u32 mode);
-int  ldlm_lock_addref_try(struct lustre_handle *lockh, __u32 mode);
-void ldlm_lock_decref(struct lustre_handle *lockh, __u32 mode);
-void ldlm_lock_decref_and_cancel(struct lustre_handle *lockh, __u32 mode);
-void ldlm_lock_fail_match_locked(struct ldlm_lock *lock);
-void ldlm_lock_fail_match(struct ldlm_lock *lock);
-void ldlm_lock_allow_match(struct ldlm_lock *lock);
-void ldlm_lock_allow_match_locked(struct ldlm_lock *lock);
-ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
-			    const struct ldlm_res_id *, ldlm_type_t type,
-			    ldlm_policy_data_t *, ldlm_mode_t mode,
-			    struct lustre_handle *, int unref);
-ldlm_mode_t ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
-					__u64 *bits);
-struct ldlm_resource *ldlm_lock_convert(struct ldlm_lock *lock, int new_mode,
-					__u32 *flags);
-void ldlm_lock_downgrade(struct ldlm_lock *lock, int new_mode);
-void ldlm_lock_cancel(struct ldlm_lock *lock);
-void ldlm_reprocess_all(struct ldlm_resource *res);
-void ldlm_reprocess_all_ns(struct ldlm_namespace *ns);
-void ldlm_lock_dump_handle(int level, struct lustre_handle *);
-void ldlm_unlink_lock_skiplist(struct ldlm_lock *req);
-
-/* resource.c */
-struct ldlm_namespace *
-ldlm_namespace_new(struct obd_device *obd, char *name,
-		   ldlm_side_t client, ldlm_appetite_t apt,
-		   ldlm_ns_type_t ns_type);
-int ldlm_namespace_cleanup(struct ldlm_namespace *ns, __u64 flags);
-void ldlm_namespace_free(struct ldlm_namespace *ns,
-			 struct obd_import *imp, int force);
-void ldlm_namespace_register(struct ldlm_namespace *ns, ldlm_side_t client);
-void ldlm_namespace_unregister(struct ldlm_namespace *ns, ldlm_side_t client);
-void ldlm_namespace_get(struct ldlm_namespace *ns);
-void ldlm_namespace_put(struct ldlm_namespace *ns);
-int ldlm_debugfs_setup(void);
-void ldlm_debugfs_cleanup(void);
-
-/* resource.c - internal */
-struct ldlm_resource *ldlm_resource_get(struct ldlm_namespace *ns,
-					struct ldlm_resource *parent,
-					const struct ldlm_res_id *,
-					ldlm_type_t type, int create);
-struct ldlm_resource *ldlm_resource_getref(struct ldlm_resource *res);
-int ldlm_resource_putref(struct ldlm_resource *res);
-void ldlm_resource_add_lock(struct ldlm_resource *res,
-			    struct list_head *head,
-			    struct ldlm_lock *lock);
-void ldlm_resource_unlink_lock(struct ldlm_lock *lock);
-void ldlm_res2desc(struct ldlm_resource *res, struct ldlm_resource_desc *desc);
-void ldlm_dump_all_namespaces(ldlm_side_t client, int level);
-void ldlm_namespace_dump(int level, struct ldlm_namespace *);
-void ldlm_resource_dump(int level, struct ldlm_resource *);
-int ldlm_lock_change_resource(struct ldlm_namespace *, struct ldlm_lock *,
-			      const struct ldlm_res_id *);
-
-#define LDLM_RESOURCE_ADDREF(res) do {				  \
-	lu_ref_add_atomic(&(res)->lr_reference, __func__, current);  \
-} while (0)
-
-#define LDLM_RESOURCE_DELREF(res) do {				  \
-	lu_ref_del(&(res)->lr_reference, __func__, current);	  \
-} while (0)
-
-/* ldlm_request.c */
-int ldlm_expired_completion_wait(void *data);
-/** \defgroup ldlm_local_ast Default AST handlers for local locks
- * These AST handlers are typically used for server-side local locks and are
- * also used by client-side lock handlers to perform minimum level base
- * processing.
- * @{ */
-int ldlm_blocking_ast_nocheck(struct ldlm_lock *lock);
-int ldlm_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
-		      void *data, int flag);
-int ldlm_glimpse_ast(struct ldlm_lock *lock, void *reqp);
-int ldlm_completion_ast_async(struct ldlm_lock *lock, __u64 flags, void *data);
-int ldlm_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data);
-/** @} ldlm_local_ast */
-
-/** \defgroup ldlm_cli_api API to operate on locks from actual LDLM users.
- * These are typically used by client and server (*_local versions)
- * to obtain and release locks.
- * @{ */
-int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
-		     struct ldlm_enqueue_info *einfo,
-		     const struct ldlm_res_id *res_id,
-		     ldlm_policy_data_t const *policy, __u64 *flags,
-		     void *lvb, __u32 lvb_len, enum lvb_type lvb_type,
-		     struct lustre_handle *lockh, int async);
-int ldlm_prep_enqueue_req(struct obd_export *exp,
-			  struct ptlrpc_request *req,
-			  struct list_head *cancels,
-			  int count);
-int ldlm_prep_elc_req(struct obd_export *exp,
-		      struct ptlrpc_request *req,
-		      int version, int opc, int canceloff,
-		      struct list_head *cancels, int count);
-
-struct ptlrpc_request *ldlm_enqueue_pack(struct obd_export *exp, int lvb_len);
-int ldlm_handle_enqueue0(struct ldlm_namespace *ns, struct ptlrpc_request *req,
-			 const struct ldlm_request *dlm_req,
-			 const struct ldlm_callback_suite *cbs);
-int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
-			  ldlm_type_t type, __u8 with_policy, ldlm_mode_t mode,
-			  __u64 *flags, void *lvb, __u32 lvb_len,
-			  struct lustre_handle *lockh, int rc);
-int ldlm_cli_enqueue_local(struct ldlm_namespace *ns,
-			   const struct ldlm_res_id *res_id,
-			   ldlm_type_t type, ldlm_policy_data_t *policy,
-			   ldlm_mode_t mode, __u64 *flags,
-			   ldlm_blocking_callback blocking,
-			   ldlm_completion_callback completion,
-			   ldlm_glimpse_callback glimpse,
-			   void *data, __u32 lvb_len, enum lvb_type lvb_type,
-			   const __u64 *client_cookie,
-			   struct lustre_handle *lockh);
-int ldlm_server_ast(struct lustre_handle *lockh, struct ldlm_lock_desc *new,
-		    void *data, __u32 data_len);
-int ldlm_cli_convert(struct lustre_handle *, int new_mode, __u32 *flags);
-int ldlm_cli_update_pool(struct ptlrpc_request *req);
-int ldlm_cli_cancel(struct lustre_handle *lockh,
-		    ldlm_cancel_flags_t cancel_flags);
-int ldlm_cli_cancel_unused(struct ldlm_namespace *, const struct ldlm_res_id *,
-			   ldlm_cancel_flags_t flags, void *opaque);
-int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
-				    const struct ldlm_res_id *res_id,
-				    ldlm_policy_data_t *policy,
-				    ldlm_mode_t mode,
-				    ldlm_cancel_flags_t flags,
-				    void *opaque);
-int ldlm_cli_cancel_req(struct obd_export *exp, struct list_head *head,
-			int count, ldlm_cancel_flags_t flags);
-int ldlm_cancel_resource_local(struct ldlm_resource *res,
-			       struct list_head *cancels,
-			       ldlm_policy_data_t *policy,
-			       ldlm_mode_t mode, __u64 lock_flags,
-			       ldlm_cancel_flags_t cancel_flags, void *opaque);
-int ldlm_cli_cancel_list_local(struct list_head *cancels, int count,
-			       ldlm_cancel_flags_t flags);
-int ldlm_cli_cancel_list(struct list_head *head, int count,
-			 struct ptlrpc_request *req, ldlm_cancel_flags_t flags);
-/** @} ldlm_cli_api */
-
-/* mds/handler.c */
-/* This has to be here because recursive inclusion sucks. */
-int intent_disposition(struct ldlm_reply *rep, int flag);
-void intent_set_disposition(struct ldlm_reply *rep, int flag);
-
-
-/* ioctls for trying requests */
-#define IOC_LDLM_TYPE		   'f'
-#define IOC_LDLM_MIN_NR		 40
-
-#define IOC_LDLM_TEST		   _IOWR('f', 40, long)
-#define IOC_LDLM_DUMP		   _IOWR('f', 41, long)
-#define IOC_LDLM_REGRESS_START	  _IOWR('f', 42, long)
-#define IOC_LDLM_REGRESS_STOP	   _IOWR('f', 43, long)
-#define IOC_LDLM_MAX_NR		 43
-
-/**
- * "Modes" of acquiring lock_res, necessary to tell lockdep that taking more
- * than one lock_res is dead-lock safe.
- */
-enum lock_res_type {
-	LRT_NORMAL,
-	LRT_NEW
-};
-
-/** Lock resource. */
-static inline void lock_res(struct ldlm_resource *res)
-{
-	spin_lock(&res->lr_lock);
-}
-
-/** Lock resource with a way to instruct lockdep code about nestedness-safe. */
-static inline void lock_res_nested(struct ldlm_resource *res,
-				   enum lock_res_type mode)
-{
-	spin_lock_nested(&res->lr_lock, mode);
-}
-
-/** Unlock resource. */
-static inline void unlock_res(struct ldlm_resource *res)
-{
-	spin_unlock(&res->lr_lock);
-}
-
-/** Check if resource is already locked, assert if not. */
-static inline void check_res_locked(struct ldlm_resource *res)
-{
-	assert_spin_locked(&res->lr_lock);
-}
-
-struct ldlm_resource *lock_res_and_lock(struct ldlm_lock *lock);
-void unlock_res_and_lock(struct ldlm_lock *lock);
-
-/* ldlm_pool.c */
-/** \defgroup ldlm_pools Various LDLM pool related functions
- * There are not used outside of ldlm.
- * @{
- */
-int ldlm_pools_recalc(ldlm_side_t client);
-int ldlm_pools_init(void);
-void ldlm_pools_fini(void);
-
-int ldlm_pool_init(struct ldlm_pool *pl, struct ldlm_namespace *ns,
-		   int idx, ldlm_side_t client);
-int ldlm_pool_shrink(struct ldlm_pool *pl, int nr,
-		     gfp_t gfp_mask);
-void ldlm_pool_fini(struct ldlm_pool *pl);
-int ldlm_pool_setup(struct ldlm_pool *pl, int limit);
-int ldlm_pool_recalc(struct ldlm_pool *pl);
-__u32 ldlm_pool_get_lvf(struct ldlm_pool *pl);
-__u64 ldlm_pool_get_slv(struct ldlm_pool *pl);
-__u64 ldlm_pool_get_clv(struct ldlm_pool *pl);
-__u32 ldlm_pool_get_limit(struct ldlm_pool *pl);
-void ldlm_pool_set_slv(struct ldlm_pool *pl, __u64 slv);
-void ldlm_pool_set_clv(struct ldlm_pool *pl, __u64 clv);
-void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit);
-void ldlm_pool_add(struct ldlm_pool *pl, struct ldlm_lock *lock);
-void ldlm_pool_del(struct ldlm_pool *pl, struct ldlm_lock *lock);
-/** @} */
-
-#endif
-/** @} LDLM */
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
deleted file mode 100644
index d4cc09635271..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
+++ /dev/null
@@ -1,467 +0,0 @@
-/*  -*- buffer-read-only: t -*- vi: set ro:
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-/**
- * \file lustre_dlm_flags.h
- * The flags and collections of flags (masks) for \see struct ldlm_lock.
- *
- * \addtogroup LDLM Lustre Distributed Lock Manager
- * @{
- *
- * \name flags
- * The flags and collections of flags (masks) for \see struct ldlm_lock.
- * @{
- */
-#ifndef LDLM_ALL_FLAGS_MASK
-
-/** l_flags bits marked as "all_flags" bits */
-#define LDLM_FL_ALL_FLAGS_MASK          0x00FFFFFFC08F932FULL
-
-/** l_flags bits marked as "ast" bits */
-#define LDLM_FL_AST_MASK                0x0000000080008000ULL
-
-/** l_flags bits marked as "blocked" bits */
-#define LDLM_FL_BLOCKED_MASK            0x000000000000000EULL
-
-/** l_flags bits marked as "gone" bits */
-#define LDLM_FL_GONE_MASK               0x0006004000000000ULL
-
-/** l_flags bits marked as "hide_lock" bits */
-#define LDLM_FL_HIDE_LOCK_MASK          0x0000206400000000ULL
-
-/** l_flags bits marked as "inherit" bits */
-#define LDLM_FL_INHERIT_MASK            0x0000000000800000ULL
-
-/** l_flags bits marked as "local_only" bits */
-#define LDLM_FL_LOCAL_ONLY_MASK         0x00FFFFFF00000000ULL
-
-/** l_flags bits marked as "on_wire" bits */
-#define LDLM_FL_ON_WIRE_MASK            0x00000000C08F932FULL
-
-/** extent, mode, or resource changed */
-#define LDLM_FL_LOCK_CHANGED            0x0000000000000001ULL // bit   0
-#define ldlm_is_lock_changed(_l)        LDLM_TEST_FLAG(( _l), 1ULL <<  0)
-#define ldlm_set_lock_changed(_l)       LDLM_SET_FLAG((  _l), 1ULL <<  0)
-#define ldlm_clear_lock_changed(_l)     LDLM_CLEAR_FLAG((_l), 1ULL <<  0)
-
-/**
- * Server placed lock on granted list, or a recovering client wants the
- * lock added to the granted list, no questions asked. */
-#define LDLM_FL_BLOCK_GRANTED           0x0000000000000002ULL // bit   1
-#define ldlm_is_block_granted(_l)       LDLM_TEST_FLAG(( _l), 1ULL <<  1)
-#define ldlm_set_block_granted(_l)      LDLM_SET_FLAG((  _l), 1ULL <<  1)
-#define ldlm_clear_block_granted(_l)    LDLM_CLEAR_FLAG((_l), 1ULL <<  1)
-
-/**
- * Server placed lock on conv list, or a recovering client wants the lock
- * added to the conv list, no questions asked. */
-#define LDLM_FL_BLOCK_CONV              0x0000000000000004ULL // bit   2
-#define ldlm_is_block_conv(_l)          LDLM_TEST_FLAG(( _l), 1ULL <<  2)
-#define ldlm_set_block_conv(_l)         LDLM_SET_FLAG((  _l), 1ULL <<  2)
-#define ldlm_clear_block_conv(_l)       LDLM_CLEAR_FLAG((_l), 1ULL <<  2)
-
-/**
- * Server placed lock on wait list, or a recovering client wants the lock
- * added to the wait list, no questions asked. */
-#define LDLM_FL_BLOCK_WAIT              0x0000000000000008ULL // bit   3
-#define ldlm_is_block_wait(_l)          LDLM_TEST_FLAG(( _l), 1ULL <<  3)
-#define ldlm_set_block_wait(_l)         LDLM_SET_FLAG((  _l), 1ULL <<  3)
-#define ldlm_clear_block_wait(_l)       LDLM_CLEAR_FLAG((_l), 1ULL <<  3)
-
-/** blocking or cancel packet was queued for sending. */
-#define LDLM_FL_AST_SENT                0x0000000000000020ULL // bit   5
-#define ldlm_is_ast_sent(_l)            LDLM_TEST_FLAG(( _l), 1ULL <<  5)
-#define ldlm_set_ast_sent(_l)           LDLM_SET_FLAG((  _l), 1ULL <<  5)
-#define ldlm_clear_ast_sent(_l)         LDLM_CLEAR_FLAG((_l), 1ULL <<  5)
-
-/**
- * Lock is being replayed.  This could probably be implied by the fact that
- * one of BLOCK_{GRANTED,CONV,WAIT} is set, but that is pretty dangerous. */
-#define LDLM_FL_REPLAY                  0x0000000000000100ULL // bit   8
-#define ldlm_is_replay(_l)              LDLM_TEST_FLAG(( _l), 1ULL <<  8)
-#define ldlm_set_replay(_l)             LDLM_SET_FLAG((  _l), 1ULL <<  8)
-#define ldlm_clear_replay(_l)           LDLM_CLEAR_FLAG((_l), 1ULL <<  8)
-
-/** Don't grant lock, just do intent. */
-#define LDLM_FL_INTENT_ONLY             0x0000000000000200ULL // bit   9
-#define ldlm_is_intent_only(_l)         LDLM_TEST_FLAG(( _l), 1ULL <<  9)
-#define ldlm_set_intent_only(_l)        LDLM_SET_FLAG((  _l), 1ULL <<  9)
-#define ldlm_clear_intent_only(_l)      LDLM_CLEAR_FLAG((_l), 1ULL <<  9)
-
-/** lock request has intent */
-#define LDLM_FL_HAS_INTENT              0x0000000000001000ULL // bit  12
-#define ldlm_is_has_intent(_l)          LDLM_TEST_FLAG(( _l), 1ULL << 12)
-#define ldlm_set_has_intent(_l)         LDLM_SET_FLAG((  _l), 1ULL << 12)
-#define ldlm_clear_has_intent(_l)       LDLM_CLEAR_FLAG((_l), 1ULL << 12)
-
-/** flock deadlock detected */
-#define LDLM_FL_FLOCK_DEADLOCK          0x0000000000008000ULL /* bit  15 */
-#define ldlm_is_flock_deadlock(_l)      LDLM_TEST_FLAG((_l), 1ULL << 15)
-#define ldlm_set_flock_deadlock(_l)     LDLM_SET_FLAG((_l), 1ULL << 15)
-#define ldlm_clear_flock_deadlock(_l)   LDLM_CLEAR_FLAG((_l), 1ULL << 15)
-
-/** discard (no writeback) on cancel */
-#define LDLM_FL_DISCARD_DATA            0x0000000000010000ULL // bit  16
-#define ldlm_is_discard_data(_l)        LDLM_TEST_FLAG(( _l), 1ULL << 16)
-#define ldlm_set_discard_data(_l)       LDLM_SET_FLAG((  _l), 1ULL << 16)
-#define ldlm_clear_discard_data(_l)     LDLM_CLEAR_FLAG((_l), 1ULL << 16)
-
-/** Blocked by group lock - wait indefinitely */
-#define LDLM_FL_NO_TIMEOUT              0x0000000000020000ULL // bit  17
-#define ldlm_is_no_timeout(_l)          LDLM_TEST_FLAG(( _l), 1ULL << 17)
-#define ldlm_set_no_timeout(_l)         LDLM_SET_FLAG((  _l), 1ULL << 17)
-#define ldlm_clear_no_timeout(_l)       LDLM_CLEAR_FLAG((_l), 1ULL << 17)
-
-/**
- * Server told not to wait if blocked. For AGL, OST will not send glimpse
- * callback. */
-#define LDLM_FL_BLOCK_NOWAIT            0x0000000000040000ULL // bit  18
-#define ldlm_is_block_nowait(_l)        LDLM_TEST_FLAG(( _l), 1ULL << 18)
-#define ldlm_set_block_nowait(_l)       LDLM_SET_FLAG((  _l), 1ULL << 18)
-#define ldlm_clear_block_nowait(_l)     LDLM_CLEAR_FLAG((_l), 1ULL << 18)
-
-/** return blocking lock */
-#define LDLM_FL_TEST_LOCK               0x0000000000080000ULL // bit  19
-#define ldlm_is_test_lock(_l)           LDLM_TEST_FLAG(( _l), 1ULL << 19)
-#define ldlm_set_test_lock(_l)          LDLM_SET_FLAG((  _l), 1ULL << 19)
-#define ldlm_clear_test_lock(_l)        LDLM_CLEAR_FLAG((_l), 1ULL << 19)
-
-/**
- * Immediately cancel such locks when they block some other locks. Send
- * cancel notification to original lock holder, but expect no reply. This
- * is for clients (like liblustre) that cannot be expected to reliably
- * response to blocking AST. */
-#define LDLM_FL_CANCEL_ON_BLOCK         0x0000000000800000ULL // bit  23
-#define ldlm_is_cancel_on_block(_l)     LDLM_TEST_FLAG(( _l), 1ULL << 23)
-#define ldlm_set_cancel_on_block(_l)    LDLM_SET_FLAG((  _l), 1ULL << 23)
-#define ldlm_clear_cancel_on_block(_l)  LDLM_CLEAR_FLAG((_l), 1ULL << 23)
-
-/**
- * measure lock contention and return -EUSERS if locking contention is high */
-#define LDLM_FL_DENY_ON_CONTENTION        0x0000000040000000ULL // bit  30
-#define ldlm_is_deny_on_contention(_l)    LDLM_TEST_FLAG(( _l), 1ULL << 30)
-#define ldlm_set_deny_on_contention(_l)   LDLM_SET_FLAG((  _l), 1ULL << 30)
-#define ldlm_clear_deny_on_contention(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 30)
-
-/**
- * These are flags that are mapped into the flags and ASTs of blocking
- * locks Add FL_DISCARD to blocking ASTs */
-#define LDLM_FL_AST_DISCARD_DATA        0x0000000080000000ULL // bit  31
-#define ldlm_is_ast_discard_data(_l)    LDLM_TEST_FLAG(( _l), 1ULL << 31)
-#define ldlm_set_ast_discard_data(_l)   LDLM_SET_FLAG((  _l), 1ULL << 31)
-#define ldlm_clear_ast_discard_data(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 31)
-
-/**
- * Used for marking lock as a target for -EINTR while cp_ast sleep emulation
- * + race with upcoming bl_ast. */
-#define LDLM_FL_FAIL_LOC                0x0000000100000000ULL // bit  32
-#define ldlm_is_fail_loc(_l)            LDLM_TEST_FLAG(( _l), 1ULL << 32)
-#define ldlm_set_fail_loc(_l)           LDLM_SET_FLAG((  _l), 1ULL << 32)
-#define ldlm_clear_fail_loc(_l)         LDLM_CLEAR_FLAG((_l), 1ULL << 32)
-
-/**
- * Used while processing the unused list to know that we have already
- * handled this lock and decided to skip it. */
-#define LDLM_FL_SKIPPED                 0x0000000200000000ULL // bit  33
-#define ldlm_is_skipped(_l)             LDLM_TEST_FLAG(( _l), 1ULL << 33)
-#define ldlm_set_skipped(_l)            LDLM_SET_FLAG((  _l), 1ULL << 33)
-#define ldlm_clear_skipped(_l)          LDLM_CLEAR_FLAG((_l), 1ULL << 33)
-
-/** this lock is being destroyed */
-#define LDLM_FL_CBPENDING               0x0000000400000000ULL // bit  34
-#define ldlm_is_cbpending(_l)           LDLM_TEST_FLAG(( _l), 1ULL << 34)
-#define ldlm_set_cbpending(_l)          LDLM_SET_FLAG((  _l), 1ULL << 34)
-#define ldlm_clear_cbpending(_l)        LDLM_CLEAR_FLAG((_l), 1ULL << 34)
-
-/** not a real flag, not saved in lock */
-#define LDLM_FL_WAIT_NOREPROC           0x0000000800000000ULL // bit  35
-#define ldlm_is_wait_noreproc(_l)       LDLM_TEST_FLAG(( _l), 1ULL << 35)
-#define ldlm_set_wait_noreproc(_l)      LDLM_SET_FLAG((  _l), 1ULL << 35)
-#define ldlm_clear_wait_noreproc(_l)    LDLM_CLEAR_FLAG((_l), 1ULL << 35)
-
-/** cancellation callback already run */
-#define LDLM_FL_CANCEL                  0x0000001000000000ULL // bit  36
-#define ldlm_is_cancel(_l)              LDLM_TEST_FLAG(( _l), 1ULL << 36)
-#define ldlm_set_cancel(_l)             LDLM_SET_FLAG((  _l), 1ULL << 36)
-#define ldlm_clear_cancel(_l)           LDLM_CLEAR_FLAG((_l), 1ULL << 36)
-
-/** whatever it might mean */
-#define LDLM_FL_LOCAL_ONLY              0x0000002000000000ULL // bit  37
-#define ldlm_is_local_only(_l)          LDLM_TEST_FLAG(( _l), 1ULL << 37)
-#define ldlm_set_local_only(_l)         LDLM_SET_FLAG((  _l), 1ULL << 37)
-#define ldlm_clear_local_only(_l)       LDLM_CLEAR_FLAG((_l), 1ULL << 37)
-
-/** don't run the cancel callback under ldlm_cli_cancel_unused */
-#define LDLM_FL_FAILED                  0x0000004000000000ULL // bit  38
-#define ldlm_is_failed(_l)              LDLM_TEST_FLAG(( _l), 1ULL << 38)
-#define ldlm_set_failed(_l)             LDLM_SET_FLAG((  _l), 1ULL << 38)
-#define ldlm_clear_failed(_l)           LDLM_CLEAR_FLAG((_l), 1ULL << 38)
-
-/** lock cancel has already been sent */
-#define LDLM_FL_CANCELING               0x0000008000000000ULL // bit  39
-#define ldlm_is_canceling(_l)           LDLM_TEST_FLAG(( _l), 1ULL << 39)
-#define ldlm_set_canceling(_l)          LDLM_SET_FLAG((  _l), 1ULL << 39)
-#define ldlm_clear_canceling(_l)        LDLM_CLEAR_FLAG((_l), 1ULL << 39)
-
-/** local lock (ie, no srv/cli split) */
-#define LDLM_FL_LOCAL                   0x0000010000000000ULL // bit  40
-#define ldlm_is_local(_l)               LDLM_TEST_FLAG(( _l), 1ULL << 40)
-#define ldlm_set_local(_l)              LDLM_SET_FLAG((  _l), 1ULL << 40)
-#define ldlm_clear_local(_l)            LDLM_CLEAR_FLAG((_l), 1ULL << 40)
-
-/**
- * XXX FIXME: This is being added to b_size as a low-risk fix to the
- * fact that the LVB filling happens _after_ the lock has been granted,
- * so another thread can match it before the LVB has been updated.  As a
- * dirty hack, we set LDLM_FL_LVB_READY only after we've done the LVB poop.
- * this is only needed on LOV/OSC now, where LVB is actually used and
- * callers must set it in input flags.
- *
- * The proper fix is to do the granting inside of the completion AST,
- * which can be replaced with a LVB-aware wrapping function for OSC locks.
- * That change is pretty high-risk, though, and would need a lot more
- * testing. */
-#define LDLM_FL_LVB_READY               0x0000020000000000ULL // bit  41
-#define ldlm_is_lvb_ready(_l)           LDLM_TEST_FLAG(( _l), 1ULL << 41)
-#define ldlm_set_lvb_ready(_l)          LDLM_SET_FLAG((  _l), 1ULL << 41)
-#define ldlm_clear_lvb_ready(_l)        LDLM_CLEAR_FLAG((_l), 1ULL << 41)
-
-/**
- * A lock contributes to the known minimum size (KMS) calculation until it
- * has finished the part of its cancellation that performs write back on its
- * dirty pages.  It can remain on the granted list during this whole time.
- * Threads racing to update the KMS after performing their writeback need
- * to know to exclude each other's locks from the calculation as they walk
- * the granted list. */
-#define LDLM_FL_KMS_IGNORE              0x0000040000000000ULL // bit  42
-#define ldlm_is_kms_ignore(_l)          LDLM_TEST_FLAG(( _l), 1ULL << 42)
-#define ldlm_set_kms_ignore(_l)         LDLM_SET_FLAG((  _l), 1ULL << 42)
-#define ldlm_clear_kms_ignore(_l)       LDLM_CLEAR_FLAG((_l), 1ULL << 42)
-
-/** completion AST to be executed */
-#define LDLM_FL_CP_REQD                 0x0000080000000000ULL // bit  43
-#define ldlm_is_cp_reqd(_l)             LDLM_TEST_FLAG(( _l), 1ULL << 43)
-#define ldlm_set_cp_reqd(_l)            LDLM_SET_FLAG((  _l), 1ULL << 43)
-#define ldlm_clear_cp_reqd(_l)          LDLM_CLEAR_FLAG((_l), 1ULL << 43)
-
-/** cleanup_resource has already handled the lock */
-#define LDLM_FL_CLEANED                 0x0000100000000000ULL // bit  44
-#define ldlm_is_cleaned(_l)             LDLM_TEST_FLAG(( _l), 1ULL << 44)
-#define ldlm_set_cleaned(_l)            LDLM_SET_FLAG((  _l), 1ULL << 44)
-#define ldlm_clear_cleaned(_l)          LDLM_CLEAR_FLAG((_l), 1ULL << 44)
-
-/**
- * optimization hint: LDLM can run blocking callback from current context
- * w/o involving separate thread. in order to decrease cs rate */
-#define LDLM_FL_ATOMIC_CB               0x0000200000000000ULL // bit  45
-#define ldlm_is_atomic_cb(_l)           LDLM_TEST_FLAG(( _l), 1ULL << 45)
-#define ldlm_set_atomic_cb(_l)          LDLM_SET_FLAG((  _l), 1ULL << 45)
-#define ldlm_clear_atomic_cb(_l)        LDLM_CLEAR_FLAG((_l), 1ULL << 45)
-
-/**
- * It may happen that a client initiates two operations, e.g. unlink and
- * mkdir, such that the server sends a blocking AST for conflicting locks
- * to this client for the first operation, whereas the second operation
- * has canceled this lock and is waiting for rpc_lock which is taken by
- * the first operation. LDLM_FL_BL_AST is set by ldlm_callback_handler() in
- * the lock to prevent the Early Lock Cancel (ELC) code from cancelling it.
- *
- * LDLM_FL_BL_DONE is to be set by ldlm_cancel_callback() when lock cache is
- * dropped to let ldlm_callback_handler() return EINVAL to the server. It
- * is used when ELC RPC is already prepared and is waiting for rpc_lock,
- * too late to send a separate CANCEL RPC. */
-#define LDLM_FL_BL_AST                  0x0000400000000000ULL // bit  46
-#define ldlm_is_bl_ast(_l)              LDLM_TEST_FLAG(( _l), 1ULL << 46)
-#define ldlm_set_bl_ast(_l)             LDLM_SET_FLAG((  _l), 1ULL << 46)
-#define ldlm_clear_bl_ast(_l)           LDLM_CLEAR_FLAG((_l), 1ULL << 46)
-
-/** whatever it might mean */
-#define LDLM_FL_BL_DONE                 0x0000800000000000ULL // bit  47
-#define ldlm_is_bl_done(_l)             LDLM_TEST_FLAG(( _l), 1ULL << 47)
-#define ldlm_set_bl_done(_l)            LDLM_SET_FLAG((  _l), 1ULL << 47)
-#define ldlm_clear_bl_done(_l)          LDLM_CLEAR_FLAG((_l), 1ULL << 47)
-
-/**
- * Don't put lock into the LRU list, so that it is not canceled due
- * to aging.  Used by MGC locks, they are cancelled only at unmount or
- * by callback. */
-#define LDLM_FL_NO_LRU                  0x0001000000000000ULL // bit  48
-#define ldlm_is_no_lru(_l)              LDLM_TEST_FLAG(( _l), 1ULL << 48)
-#define ldlm_set_no_lru(_l)             LDLM_SET_FLAG((  _l), 1ULL << 48)
-#define ldlm_clear_no_lru(_l)           LDLM_CLEAR_FLAG((_l), 1ULL << 48)
-
-/**
- * Set for locks that failed and where the server has been notified.
- *
- * Protected by lock and resource locks. */
-#define LDLM_FL_FAIL_NOTIFIED           0x0002000000000000ULL // bit  49
-#define ldlm_is_fail_notified(_l)       LDLM_TEST_FLAG(( _l), 1ULL << 49)
-#define ldlm_set_fail_notified(_l)      LDLM_SET_FLAG((  _l), 1ULL << 49)
-#define ldlm_clear_fail_notified(_l)    LDLM_CLEAR_FLAG((_l), 1ULL << 49)
-
-/**
- * Set for locks that were removed from class hash table and will
- * be destroyed when last reference to them is released. Set by
- * ldlm_lock_destroy_internal().
- *
- * Protected by lock and resource locks. */
-#define LDLM_FL_DESTROYED               0x0004000000000000ULL // bit  50
-#define ldlm_is_destroyed(_l)           LDLM_TEST_FLAG(( _l), 1ULL << 50)
-#define ldlm_set_destroyed(_l)          LDLM_SET_FLAG((  _l), 1ULL << 50)
-#define ldlm_clear_destroyed(_l)        LDLM_CLEAR_FLAG((_l), 1ULL << 50)
-
-/** flag whether this is a server namespace lock */
-#define LDLM_FL_SERVER_LOCK             0x0008000000000000ULL // bit  51
-#define ldlm_is_server_lock(_l)         LDLM_TEST_FLAG(( _l), 1ULL << 51)
-#define ldlm_set_server_lock(_l)        LDLM_SET_FLAG((  _l), 1ULL << 51)
-#define ldlm_clear_server_lock(_l)      LDLM_CLEAR_FLAG((_l), 1ULL << 51)
-
-/**
- * It's set in lock_res_and_lock() and unset in unlock_res_and_lock().
- *
- * NB: compared with check_res_locked(), checking this bit is cheaper.
- * Also, spin_is_locked() is deprecated for kernel code; one reason is
- * because it works only for SMP so user needs to add extra macros like
- * LASSERT_SPIN_LOCKED for uniprocessor kernels. */
-#define LDLM_FL_RES_LOCKED              0x0010000000000000ULL // bit  52
-#define ldlm_is_res_locked(_l)          LDLM_TEST_FLAG(( _l), 1ULL << 52)
-#define ldlm_set_res_locked(_l)         LDLM_SET_FLAG((  _l), 1ULL << 52)
-#define ldlm_clear_res_locked(_l)       LDLM_CLEAR_FLAG((_l), 1ULL << 52)
-
-/**
- * It's set once we call ldlm_add_waiting_lock_res_locked() to start the
- * lock-timeout timer and it will never be reset.
- *
- * Protected by lock and resource locks. */
-#define LDLM_FL_WAITED                  0x0020000000000000ULL // bit  53
-#define ldlm_is_waited(_l)              LDLM_TEST_FLAG(( _l), 1ULL << 53)
-#define ldlm_set_waited(_l)             LDLM_SET_FLAG((  _l), 1ULL << 53)
-#define ldlm_clear_waited(_l)           LDLM_CLEAR_FLAG((_l), 1ULL << 53)
-
-/** Flag whether this is a server namespace lock. */
-#define LDLM_FL_NS_SRV                  0x0040000000000000ULL // bit  54
-#define ldlm_is_ns_srv(_l)              LDLM_TEST_FLAG(( _l), 1ULL << 54)
-#define ldlm_set_ns_srv(_l)             LDLM_SET_FLAG((  _l), 1ULL << 54)
-#define ldlm_clear_ns_srv(_l)           LDLM_CLEAR_FLAG((_l), 1ULL << 54)
-
-/** Flag whether this lock can be reused. Used by exclusive open. */
-#define LDLM_FL_EXCL                    0x0080000000000000ULL /* bit  55 */
-#define ldlm_is_excl(_l)                LDLM_TEST_FLAG((_l), 1ULL << 55)
-#define ldlm_set_excl(_l)               LDLM_SET_FLAG((_l), 1ULL << 55)
-#define ldlm_clear_excl(_l)             LDLM_CLEAR_FLAG((_l), 1ULL << 55)
-
-/** test for ldlm_lock flag bit set */
-#define LDLM_TEST_FLAG(_l, _b)        (((_l)->l_flags & (_b)) != 0)
-
-/** set a ldlm_lock flag bit */
-#define LDLM_SET_FLAG(_l, _b)         (((_l)->l_flags |= (_b))
-
-/** clear a ldlm_lock flag bit */
-#define LDLM_CLEAR_FLAG(_l, _b)       (((_l)->l_flags &= ~(_b))
-
-/** Mask of flags inherited from parent lock when doing intents. */
-#define LDLM_INHERIT_FLAGS            LDLM_FL_INHERIT_MASK
-
-/** Mask of Flags sent in AST lock_flags to map into the receiving lock. */
-#define LDLM_AST_FLAGS                LDLM_FL_AST_MASK
-
-/** @} subgroup */
-/** @} group */
-#ifdef WIRESHARK_COMPILE
-static int hf_lustre_ldlm_fl_lock_changed        = -1;
-static int hf_lustre_ldlm_fl_block_granted       = -1;
-static int hf_lustre_ldlm_fl_block_conv          = -1;
-static int hf_lustre_ldlm_fl_block_wait          = -1;
-static int hf_lustre_ldlm_fl_ast_sent            = -1;
-static int hf_lustre_ldlm_fl_replay              = -1;
-static int hf_lustre_ldlm_fl_intent_only         = -1;
-static int hf_lustre_ldlm_fl_has_intent          = -1;
-static int hf_lustre_ldlm_fl_flock_deadlock      = -1;
-static int hf_lustre_ldlm_fl_discard_data        = -1;
-static int hf_lustre_ldlm_fl_no_timeout          = -1;
-static int hf_lustre_ldlm_fl_block_nowait        = -1;
-static int hf_lustre_ldlm_fl_test_lock           = -1;
-static int hf_lustre_ldlm_fl_cancel_on_block     = -1;
-static int hf_lustre_ldlm_fl_deny_on_contention  = -1;
-static int hf_lustre_ldlm_fl_ast_discard_data    = -1;
-static int hf_lustre_ldlm_fl_fail_loc            = -1;
-static int hf_lustre_ldlm_fl_skipped             = -1;
-static int hf_lustre_ldlm_fl_cbpending           = -1;
-static int hf_lustre_ldlm_fl_wait_noreproc       = -1;
-static int hf_lustre_ldlm_fl_cancel              = -1;
-static int hf_lustre_ldlm_fl_local_only          = -1;
-static int hf_lustre_ldlm_fl_failed              = -1;
-static int hf_lustre_ldlm_fl_canceling           = -1;
-static int hf_lustre_ldlm_fl_local               = -1;
-static int hf_lustre_ldlm_fl_lvb_ready           = -1;
-static int hf_lustre_ldlm_fl_kms_ignore          = -1;
-static int hf_lustre_ldlm_fl_cp_reqd             = -1;
-static int hf_lustre_ldlm_fl_cleaned             = -1;
-static int hf_lustre_ldlm_fl_atomic_cb           = -1;
-static int hf_lustre_ldlm_fl_bl_ast              = -1;
-static int hf_lustre_ldlm_fl_bl_done             = -1;
-static int hf_lustre_ldlm_fl_no_lru              = -1;
-static int hf_lustre_ldlm_fl_fail_notified       = -1;
-static int hf_lustre_ldlm_fl_destroyed           = -1;
-static int hf_lustre_ldlm_fl_server_lock         = -1;
-static int hf_lustre_ldlm_fl_res_locked          = -1;
-static int hf_lustre_ldlm_fl_waited              = -1;
-static int hf_lustre_ldlm_fl_ns_srv              = -1;
-static int hf_lustre_ldlm_fl_excl                = -1;
-
-const value_string lustre_ldlm_flags_vals[] = {
-	{LDLM_FL_LOCK_CHANGED,        "LDLM_FL_LOCK_CHANGED"},
-	{LDLM_FL_BLOCK_GRANTED,       "LDLM_FL_BLOCK_GRANTED"},
-	{LDLM_FL_BLOCK_CONV,          "LDLM_FL_BLOCK_CONV"},
-	{LDLM_FL_BLOCK_WAIT,          "LDLM_FL_BLOCK_WAIT"},
-	{LDLM_FL_AST_SENT,            "LDLM_FL_AST_SENT"},
-	{LDLM_FL_REPLAY,              "LDLM_FL_REPLAY"},
-	{LDLM_FL_INTENT_ONLY,         "LDLM_FL_INTENT_ONLY"},
-	{LDLM_FL_HAS_INTENT,          "LDLM_FL_HAS_INTENT"},
-	{LDLM_FL_FLOCK_DEADLOCK,      "LDLM_FL_FLOCK_DEADLOCK"},
-	{LDLM_FL_DISCARD_DATA,        "LDLM_FL_DISCARD_DATA"},
-	{LDLM_FL_NO_TIMEOUT,          "LDLM_FL_NO_TIMEOUT"},
-	{LDLM_FL_BLOCK_NOWAIT,        "LDLM_FL_BLOCK_NOWAIT"},
-	{LDLM_FL_TEST_LOCK,           "LDLM_FL_TEST_LOCK"},
-	{LDLM_FL_CANCEL_ON_BLOCK,     "LDLM_FL_CANCEL_ON_BLOCK"},
-	{LDLM_FL_DENY_ON_CONTENTION,  "LDLM_FL_DENY_ON_CONTENTION"},
-	{LDLM_FL_AST_DISCARD_DATA,    "LDLM_FL_AST_DISCARD_DATA"},
-	{LDLM_FL_FAIL_LOC,            "LDLM_FL_FAIL_LOC"},
-	{LDLM_FL_SKIPPED,             "LDLM_FL_SKIPPED"},
-	{LDLM_FL_CBPENDING,           "LDLM_FL_CBPENDING"},
-	{LDLM_FL_WAIT_NOREPROC,       "LDLM_FL_WAIT_NOREPROC"},
-	{LDLM_FL_CANCEL,              "LDLM_FL_CANCEL"},
-	{LDLM_FL_LOCAL_ONLY,          "LDLM_FL_LOCAL_ONLY"},
-	{LDLM_FL_FAILED,              "LDLM_FL_FAILED"},
-	{LDLM_FL_CANCELING,           "LDLM_FL_CANCELING"},
-	{LDLM_FL_LOCAL,               "LDLM_FL_LOCAL"},
-	{LDLM_FL_LVB_READY,           "LDLM_FL_LVB_READY"},
-	{LDLM_FL_KMS_IGNORE,          "LDLM_FL_KMS_IGNORE"},
-	{LDLM_FL_CP_REQD,             "LDLM_FL_CP_REQD"},
-	{LDLM_FL_CLEANED,             "LDLM_FL_CLEANED"},
-	{LDLM_FL_ATOMIC_CB,           "LDLM_FL_ATOMIC_CB"},
-	{LDLM_FL_BL_AST,              "LDLM_FL_BL_AST"},
-	{LDLM_FL_BL_DONE,             "LDLM_FL_BL_DONE"},
-	{LDLM_FL_NO_LRU,              "LDLM_FL_NO_LRU"},
-	{LDLM_FL_FAIL_NOTIFIED,       "LDLM_FL_FAIL_NOTIFIED"},
-	{LDLM_FL_DESTROYED,           "LDLM_FL_DESTROYED"},
-	{LDLM_FL_SERVER_LOCK,         "LDLM_FL_SERVER_LOCK"},
-	{LDLM_FL_RES_LOCKED,          "LDLM_FL_RES_LOCKED"},
-	{LDLM_FL_WAITED,              "LDLM_FL_WAITED"},
-	{LDLM_FL_NS_SRV,              "LDLM_FL_NS_SRV"},
-	{LDLM_FL_EXCL,                "LDLM_FL_EXCL"},
-	{ 0, NULL }
-};
-#endif /*  WIRESHARK_COMPILE */
-#endif /* LDLM_ALL_FLAGS_MASK */
diff --git a/drivers/staging/lustre/lustre/include/lustre_eacl.h b/drivers/staging/lustre/lustre/include/lustre_eacl.h
deleted file mode 100644
index 0f8f76c43ee1..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_eacl.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lustre/include/lustre_idmap.h
- *
- * MDS data structures.
- * See also lustre_idl.h for wire formats of requests.
- */
-
-#ifndef _LUSTRE_EACL_H
-#define _LUSTRE_EACL_H
-
-/** \defgroup eacl eacl
- *
- * @{
- */
-
-#ifdef CONFIG_FS_POSIX_ACL
-
-#include <linux/posix_acl_xattr.h>
-
-typedef struct {
-	__u16		   e_tag;
-	__u16		   e_perm;
-	__u32		   e_id;
-	__u32		   e_stat;
-} ext_acl_xattr_entry;
-
-typedef struct {
-	__u32		   a_count;
-	ext_acl_xattr_entry     a_entries[0];
-} ext_acl_xattr_header;
-
-#define CFS_ACL_XATTR_SIZE(count, prefix) \
-	(sizeof(prefix ## _header) + (count) * sizeof(prefix ## _entry))
-
-#define CFS_ACL_XATTR_COUNT(size, prefix) \
-	(((size) - sizeof(prefix ## _header)) / sizeof(prefix ## _entry))
-
-
-extern ext_acl_xattr_header *
-lustre_posix_acl_xattr_2ext(posix_acl_xattr_header *header, int size);
-extern int
-lustre_posix_acl_xattr_filter(posix_acl_xattr_header *header, size_t size,
-			      posix_acl_xattr_header **out);
-extern void
-lustre_posix_acl_xattr_free(posix_acl_xattr_header *header, int size);
-extern void
-lustre_ext_acl_xattr_free(ext_acl_xattr_header *header);
-extern int
-lustre_acl_xattr_merge2posix(posix_acl_xattr_header *posix_header, int size,
-			     ext_acl_xattr_header *ext_header,
-			     posix_acl_xattr_header **out);
-extern ext_acl_xattr_header *
-lustre_acl_xattr_merge2ext(posix_acl_xattr_header *posix_header, int size,
-			   ext_acl_xattr_header *ext_header);
-
-#endif /* CONFIG_FS_POSIX_ACL */
-
-/** @} eacl */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_export.h b/drivers/staging/lustre/lustre/include/lustre_export.h
deleted file mode 100644
index 5189fad0b73c..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_export.h
+++ /dev/null
@@ -1,377 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-/** \defgroup obd_export PortalRPC export definitions
- *
- * @{
- */
-
-#ifndef __EXPORT_H
-#define __EXPORT_H
-
-/** \defgroup export export
- *
- * @{
- */
-
-#include "lprocfs_status.h"
-#include "lustre/lustre_idl.h"
-#include "lustre_dlm.h"
-
-struct mds_client_data;
-struct mdt_client_data;
-struct mds_idmap_table;
-struct mdt_idmap_table;
-
-/**
- * Target-specific export data
- */
-struct tg_export_data {
-	/** Protects led_lcd below */
-	struct mutex		ted_lcd_lock;
-	/** Per-client data for each export */
-	struct lsd_client_data	*ted_lcd;
-	/** Offset of record in last_rcvd file */
-	loff_t			ted_lr_off;
-	/** Client index in last_rcvd file */
-	int			ted_lr_idx;
-};
-
-/**
- * MDT-specific export data
- */
-struct mdt_export_data {
-	struct tg_export_data	med_ted;
-	/** List of all files opened by client on this MDT */
-	struct list_head		med_open_head;
-	spinlock_t		med_open_lock; /* med_open_head, mfd_list */
-	/** Bitmask of all ibit locks this MDT understands */
-	__u64			med_ibits_known;
-	struct mutex		med_idmap_mutex;
-	struct lustre_idmap_table *med_idmap;
-};
-
-struct ec_export_data { /* echo client */
-	struct list_head eced_locks;
-};
-
-/* In-memory access to client data from OST struct */
-/** Filter (oss-side) specific import data */
-struct filter_export_data {
-	struct tg_export_data	fed_ted;
-	spinlock_t		fed_lock;	/**< protects fed_mod_list */
-	long		       fed_dirty;    /* in bytes */
-	long		       fed_grant;    /* in bytes */
-	struct list_head		 fed_mod_list; /* files being modified */
-	int			fed_mod_count;/* items in fed_writing list */
-	long		       fed_pending;  /* bytes just being written */
-	__u32		      fed_group;
-	__u8		       fed_pagesize; /* log2 of client page size */
-};
-
-struct mgs_export_data {
-	struct list_head		med_clients;	/* mgc fs client via this exp */
-	spinlock_t		med_lock;	/* protect med_clients */
-};
-
-enum obd_option {
-	OBD_OPT_FORCE =	 0x0001,
-	OBD_OPT_FAILOVER =      0x0002,
-	OBD_OPT_ABORT_RECOV =   0x0004,
-};
-
-/**
- * Export structure. Represents target-side of connection in portals.
- * Also used in Lustre to connect between layers on the same node when
- * there is no network-connection in-between.
- * For every connected client there is an export structure on the server
- * attached to the same obd device.
- */
-struct obd_export {
-	/**
-	 * Export handle, it's id is provided to client on connect
-	 * Subsequent client RPCs contain this handle id to identify
-	 * what export they are talking to.
-	 */
-	struct portals_handle     exp_handle;
-	atomic_t	      exp_refcount;
-	/**
-	 * Set of counters below is to track where export references are
-	 * kept. The exp_rpc_count is used for reconnect handling also,
-	 * the cb_count and locks_count are for debug purposes only for now.
-	 * The sum of them should be less than exp_refcount by 3
-	 */
-	atomic_t	      exp_rpc_count; /* RPC references */
-	atomic_t	      exp_cb_count; /* Commit callback references */
-	/** Number of queued replay requests to be processes */
-	atomic_t		  exp_replay_count;
-	atomic_t	      exp_locks_count; /** Lock references */
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-	struct list_head		exp_locks_list;
-	spinlock_t		  exp_locks_list_guard;
-#endif
-	/** UUID of client connected to this export */
-	struct obd_uuid	   exp_client_uuid;
-	/** To link all exports on an obd device */
-	struct list_head		exp_obd_chain;
-	struct hlist_node	  exp_uuid_hash; /** uuid-export hash*/
-	struct hlist_node	  exp_nid_hash; /** nid-export hash */
-	/**
-	 * All exports eligible for ping evictor are linked into a list
-	 * through this field in "most time since last request on this export"
-	 * order
-	 * protected by obd_dev_lock
-	 */
-	struct list_head		exp_obd_chain_timed;
-	/** Obd device of this export */
-	struct obd_device	*exp_obd;
-	/**
-	 * "reverse" import to send requests (e.g. from ldlm) back to client
-	 * exp_lock protect its change
-	 */
-	struct obd_import	*exp_imp_reverse;
-	struct lprocfs_stats     *exp_md_stats;
-	/** Active connection */
-	struct ptlrpc_connection *exp_connection;
-	/** Connection count value from last successful reconnect rpc */
-	__u32		     exp_conn_cnt;
-	/** Hash list of all ldlm locks granted on this export */
-	struct cfs_hash	       *exp_lock_hash;
-	/**
-	 * Hash list for Posix lock deadlock detection, added with
-	 * ldlm_lock::l_exp_flock_hash.
-	 */
-	struct cfs_hash	       *exp_flock_hash;
-	struct list_head		exp_outstanding_replies;
-	struct list_head		exp_uncommitted_replies;
-	spinlock_t		  exp_uncommitted_replies_lock;
-	/** Last committed transno for this export */
-	__u64		     exp_last_committed;
-	/** When was last request received */
-	unsigned long		exp_last_request_time;
-	/** On replay all requests waiting for replay are linked here */
-	struct list_head		exp_req_replay_queue;
-	/**
-	 * protects exp_flags, exp_outstanding_replies and the change
-	 * of exp_imp_reverse
-	 */
-	spinlock_t		  exp_lock;
-	/** Compatibility flags for this export are embedded into
-	 *  exp_connect_data */
-	struct obd_connect_data   exp_connect_data;
-	enum obd_option	   exp_flags;
-	unsigned long	     exp_failed:1,
-				  exp_in_recovery:1,
-				  exp_disconnected:1,
-				  exp_connecting:1,
-				  /** VBR: export missed recovery */
-				  exp_delayed:1,
-				  /** VBR: failed version checking */
-				  exp_vbr_failed:1,
-				  exp_req_replay_needed:1,
-				  exp_lock_replay_needed:1,
-				  exp_need_sync:1,
-				  exp_flvr_changed:1,
-				  exp_flvr_adapt:1,
-				  exp_libclient:1, /* liblustre client? */
-				  /* client timed out and tried to reconnect,
-				   * but couldn't because of active rpcs */
-				  exp_abort_active_req:1,
-				  /* if to swap nidtbl entries for 2.2 clients.
-				   * Only used by the MGS to fix LU-1644. */
-				  exp_need_mne_swab:1;
-	/* also protected by exp_lock */
-	enum lustre_sec_part      exp_sp_peer;
-	struct sptlrpc_flavor     exp_flvr;	     /* current */
-	struct sptlrpc_flavor     exp_flvr_old[2];      /* about-to-expire */
-	unsigned long		exp_flvr_expire[2];   /* seconds */
-
-	/** protects exp_hp_rpcs */
-	spinlock_t		  exp_rpc_lock;
-	struct list_head		  exp_hp_rpcs;	/* (potential) HP RPCs */
-
-	/** blocking dlm lock list, protected by exp_bl_list_lock */
-	struct list_head		exp_bl_list;
-	spinlock_t		  exp_bl_list_lock;
-
-	/** Target specific data */
-	union {
-		struct tg_export_data     eu_target_data;
-		struct mdt_export_data    eu_mdt_data;
-		struct filter_export_data eu_filter_data;
-		struct ec_export_data     eu_ec_data;
-		struct mgs_export_data    eu_mgs_data;
-	} u;
-};
-
-#define exp_target_data u.eu_target_data
-#define exp_mdt_data    u.eu_mdt_data
-#define exp_filter_data u.eu_filter_data
-#define exp_ec_data     u.eu_ec_data
-
-static inline __u64 *exp_connect_flags_ptr(struct obd_export *exp)
-{
-	return &exp->exp_connect_data.ocd_connect_flags;
-}
-
-static inline __u64 exp_connect_flags(struct obd_export *exp)
-{
-	return *exp_connect_flags_ptr(exp);
-}
-
-static inline int exp_max_brw_size(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	if (exp_connect_flags(exp) & OBD_CONNECT_BRW_SIZE)
-		return exp->exp_connect_data.ocd_brw_size;
-
-	return ONE_MB_BRW_SIZE;
-}
-
-static inline int exp_connect_multibulk(struct obd_export *exp)
-{
-	return exp_max_brw_size(exp) > ONE_MB_BRW_SIZE;
-}
-
-static inline int exp_expired(struct obd_export *exp, long age)
-{
-	LASSERT(exp->exp_delayed);
-	return time_before(cfs_time_add(exp->exp_last_request_time, age),
-			   get_seconds());
-}
-
-static inline int exp_connect_cancelset(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	return !!(exp_connect_flags(exp) & OBD_CONNECT_CANCELSET);
-}
-
-static inline int exp_connect_lru_resize(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	return !!(exp_connect_flags(exp) & OBD_CONNECT_LRU_RESIZE);
-}
-
-static inline int exp_connect_rmtclient(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	return !!(exp_connect_flags(exp) & OBD_CONNECT_RMT_CLIENT);
-}
-
-static inline int client_is_remote(struct obd_export *exp)
-{
-	struct obd_import *imp = class_exp2cliimp(exp);
-
-	return !!(imp->imp_connect_data.ocd_connect_flags &
-		  OBD_CONNECT_RMT_CLIENT);
-}
-
-static inline int exp_connect_vbr(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	LASSERT(exp->exp_connection);
-	return !!(exp_connect_flags(exp) & OBD_CONNECT_VBR);
-}
-
-static inline int exp_connect_som(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	return !!(exp_connect_flags(exp) & OBD_CONNECT_SOM);
-}
-
-static inline int exp_connect_umask(struct obd_export *exp)
-{
-	return !!(exp_connect_flags(exp) & OBD_CONNECT_UMASK);
-}
-
-static inline int imp_connect_lru_resize(struct obd_import *imp)
-{
-	struct obd_connect_data *ocd;
-
-	LASSERT(imp != NULL);
-	ocd = &imp->imp_connect_data;
-	return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE);
-}
-
-static inline int exp_connect_layout(struct obd_export *exp)
-{
-	return !!(exp_connect_flags(exp) & OBD_CONNECT_LAYOUTLOCK);
-}
-
-static inline bool exp_connect_lvb_type(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	if (exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE)
-		return true;
-	else
-		return false;
-}
-
-static inline bool imp_connect_lvb_type(struct obd_import *imp)
-{
-	struct obd_connect_data *ocd;
-
-	LASSERT(imp != NULL);
-	ocd = &imp->imp_connect_data;
-	if (ocd->ocd_connect_flags & OBD_CONNECT_LVB_TYPE)
-		return true;
-	else
-		return false;
-}
-
-static inline __u64 exp_connect_ibits(struct obd_export *exp)
-{
-	struct obd_connect_data *ocd;
-
-	ocd = &exp->exp_connect_data;
-	return ocd->ocd_ibits_known;
-}
-
-static inline bool imp_connect_disp_stripe(struct obd_import *imp)
-{
-	struct obd_connect_data *ocd;
-
-	LASSERT(imp != NULL);
-	ocd = &imp->imp_connect_data;
-	return ocd->ocd_connect_flags & OBD_CONNECT_DISP_STRIPE;
-}
-
-struct obd_export *class_conn2export(struct lustre_handle *conn);
-struct obd_device *class_conn2obd(struct lustre_handle *conn);
-
-/** @} export */
-
-#endif /* __EXPORT_H */
-/** @} obd_export */
diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h b/drivers/staging/lustre/lustre/include/lustre_fid.h
deleted file mode 100644
index c7c8fe4cdbcc..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_fid.h
+++ /dev/null
@@ -1,764 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_fid.h
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-
-#ifndef __LUSTRE_FID_H
-#define __LUSTRE_FID_H
-
-/** \defgroup fid fid
- *
- * @{
- *
- * http://wiki.lustre.org/index.php/Architecture_-_Interoperability_fids_zfs
- * describes the FID namespace and interoperability requirements for FIDs.
- * The important parts of that document are included here for reference.
- *
- * FID
- *   File IDentifier generated by client from range allocated by the SEQuence
- *   service and stored in struct lu_fid. The FID is composed of three parts:
- *   SEQuence, ObjectID, and VERsion.  The SEQ component is a filesystem
- *   unique 64-bit integer, and only one client is ever assigned any SEQ value.
- *   The first 0x400 FID_SEQ_NORMAL [2^33, 2^33 + 0x400] values are reserved
- *   for system use.  The OID component is a 32-bit value generated by the
- *   client on a per-SEQ basis to allow creating many unique FIDs without
- *   communication with the server.  The VER component is a 32-bit value that
- *   distinguishes between different FID instantiations, such as snapshots or
- *   separate subtrees within the filesystem.  FIDs with the same VER field
- *   are considered part of the same namespace.
- *
- * OLD filesystems are those upgraded from Lustre 1.x that predate FIDs, and
- *   MDTs use 32-bit ldiskfs internal inode/generation numbers (IGIFs), while
- *   OSTs use 64-bit Lustre object IDs and generation numbers.
- *
- * NEW filesystems are those formatted since the introduction of FIDs.
- *
- * IGIF
- *   Inode and Generation In FID, a surrogate FID used to globally identify
- *   an existing object on OLD formatted MDT file system. This would only be
- *   used on MDT0 in a DNE filesystem, because there cannot be more than one
- *   MDT in an OLD formatted filesystem. Belongs to sequence in [12, 2^32 - 1]
- *   range, where inode number is stored in SEQ, and inode generation is in OID.
- *   NOTE: This assumes no more than 2^32-1 inodes exist in the MDT filesystem,
- *   which is the maximum possible for an ldiskfs backend.  It also assumes
- *   that the reserved ext3/ext4/ldiskfs inode numbers [0-11] are never visible
- *   to clients, which has always been true.
- *
- * IDIF
- *   object ID In FID, a surrogate FID used to globally identify an existing
- *   OST object on OLD formatted OST file system. Belongs to a sequence in
- *   [2^32, 2^33 - 1]. Sequence number is calculated as:
- *
- *      1 << 32 | (ost_index << 16) | ((objid >> 32) & 0xffff)
- *
- *   that is, SEQ consists of 16-bit OST index, and higher 16 bits of object
- *   ID. The generation of unique SEQ values per OST allows the IDIF FIDs to
- *   be identified in the FLD correctly. The OID field is calculated as:
- *
- *      objid & 0xffffffff
- *
- *   that is, it consists of lower 32 bits of object ID.  For objects within
- *   the IDIF range, object ID extraction will be:
- *
- *      o_id = (fid->f_seq & 0x7fff) << 16 | fid->f_oid;
- *      o_seq = 0;  // formerly group number
- *
- *   NOTE: This assumes that no more than 2^48-1 objects have ever been created
- *   on any OST, and that no more than 65535 OSTs are in use.  Both are very
- *   reasonable assumptions, i.e. an IDIF can uniquely map all objects assuming
- *   a maximum creation rate of 1M objects per second for a maximum of 9 years,
- *   or combinations thereof.
- *
- * OST_MDT0
- *   Surrogate FID used to identify an existing object on OLD formatted OST
- *   filesystem. Belongs to the reserved SEQuence 0, and is used prior to
- *   the introduction of FID-on-OST, at which point IDIF will be used to
- *   identify objects as residing on a specific OST.
- *
- * LLOG
- *   For Lustre Log objects the object sequence 1 is used. This is compatible
- *   with both OLD and NEW namespaces, as this SEQ number is in the
- *   ext3/ldiskfs reserved inode range and does not conflict with IGIF
- *   sequence numbers.
- *
- * ECHO
- *   For testing OST IO performance the object sequence 2 is used. This is
- *   compatible with both OLD and NEW namespaces, as this SEQ number is in
- *   the ext3/ldiskfs reserved inode range and does not conflict with IGIF
- *   sequence numbers.
- *
- * OST_MDT1 .. OST_MAX
- *   For testing with multiple MDTs the object sequence 3 through 9 is used,
- *   allowing direct mapping of MDTs 1 through 7 respectively, for a total
- *   of 8 MDTs including OST_MDT0. This matches the legacy CMD project "group"
- *   mappings. However, this SEQ range is only for testing prior to any
- *   production DNE release, as the objects in this range conflict across all
- *   OSTs, as the OST index is not part of the FID.  For production DNE usage,
- *   OST objects created by MDT1+ will use FID_SEQ_NORMAL FIDs.
- *
- * DLM OST objid to IDIF mapping
- *   For compatibility with existing OLD OST network protocol structures, the
- *   FID must map onto the o_id and o_seq in a manner that ensures existing
- *   objects are identified consistently for IO, as well as onto the LDLM
- *   namespace to ensure IDIFs there is only a single resource name for any
- *   object in the DLM.  The OLD OST object DLM resource mapping is:
- *
- *      resource[] = {o_id, o_seq, 0, 0}; // o_seq == 0 for production releases
- *
- *   The NEW OST object DLM resource mapping is the same for both MDT and OST:
- *
- *      resource[] = {SEQ, OID, VER, HASH};
- *
- *  NOTE: for mapping IDIF values to DLM resource names the o_id may be
- *  larger than the 2^33 reserved sequence numbers for IDIF, so it is possible
- *  for the o_id numbers to overlap FID SEQ numbers in the resource. However,
- *  in all production releases the OLD o_seq field is always zero, and all
- *  valid FID OID values are non-zero, so the lock resources will not collide.
- *  Even so, the MDT and OST resources are also in different LDLM namespaces.
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "lustre/lustre_idl.h"
-
-struct lu_env;
-struct lu_site;
-struct lu_context;
-struct obd_device;
-struct obd_export;
-
-/* Whole sequences space range and zero range definitions */
-extern const struct lu_seq_range LUSTRE_SEQ_SPACE_RANGE;
-extern const struct lu_seq_range LUSTRE_SEQ_ZERO_RANGE;
-extern const struct lu_fid LUSTRE_BFL_FID;
-extern const struct lu_fid LU_OBF_FID;
-extern const struct lu_fid LU_DOT_LUSTRE_FID;
-
-enum {
-	/*
-	 * This is how may metadata FIDs may be allocated in one sequence(128k)
-	 */
-	LUSTRE_METADATA_SEQ_MAX_WIDTH = 0x0000000000020000ULL,
-
-	/*
-	 * This is how many data FIDs could be allocated in one sequence(4B - 1)
-	 */
-	LUSTRE_DATA_SEQ_MAX_WIDTH = 0x00000000FFFFFFFFULL,
-
-	/*
-	 * How many sequences to allocate to a client at once.
-	 */
-	LUSTRE_SEQ_META_WIDTH = 0x0000000000000001ULL,
-
-	/*
-	 * seq allocation pool size.
-	 */
-	LUSTRE_SEQ_BATCH_WIDTH = LUSTRE_SEQ_META_WIDTH * 1000,
-
-	/*
-	 * This is how many sequences may be in one super-sequence allocated to
-	 * MDTs.
-	 */
-	LUSTRE_SEQ_SUPER_WIDTH = ((1ULL << 30ULL) * LUSTRE_SEQ_META_WIDTH)
-};
-
-enum {
-	/** 2^6 FIDs for OI containers */
-	OSD_OI_FID_OID_BITS     = 6,
-	/** reserve enough FIDs in case we want more in the future */
-	OSD_OI_FID_OID_BITS_MAX = 10,
-};
-
-/** special OID for local objects */
-enum local_oid {
-	/** \see fld_mod_init */
-	FLD_INDEX_OID		= 3UL,
-	/** \see fid_mod_init */
-	FID_SEQ_CTL_OID		= 4UL,
-	FID_SEQ_SRV_OID		= 5UL,
-	/** \see mdd_mod_init */
-	MDD_ROOT_INDEX_OID	= 6UL, /* deprecated in 2.4 */
-	MDD_ORPHAN_OID		= 7UL, /* deprecated in 2.4 */
-	MDD_LOV_OBJ_OID		= 8UL,
-	MDD_CAPA_KEYS_OID	= 9UL,
-	/** \see mdt_mod_init */
-	LAST_RECV_OID		= 11UL,
-	OSD_FS_ROOT_OID		= 13UL,
-	ACCT_USER_OID		= 15UL,
-	ACCT_GROUP_OID		= 16UL,
-	LFSCK_BOOKMARK_OID	= 17UL,
-	OTABLE_IT_OID		= 18UL,
-	/* These two definitions are obsolete
-	 * OFD_GROUP0_LAST_OID     = 20UL,
-	 * OFD_GROUP4K_LAST_OID    = 20UL+4096,
-	 */
-	OFD_LAST_GROUP_OID	= 4117UL,
-	LLOG_CATALOGS_OID	= 4118UL,
-	MGS_CONFIGS_OID		= 4119UL,
-	OFD_HEALTH_CHECK_OID	= 4120UL,
-	MDD_LOV_OBJ_OSEQ	= 4121UL,
-	LFSCK_NAMESPACE_OID     = 4122UL,
-	REMOTE_PARENT_DIR_OID	= 4123UL,
-};
-
-static inline void lu_local_obj_fid(struct lu_fid *fid, __u32 oid)
-{
-	fid->f_seq = FID_SEQ_LOCAL_FILE;
-	fid->f_oid = oid;
-	fid->f_ver = 0;
-}
-
-static inline void lu_local_name_obj_fid(struct lu_fid *fid, __u32 oid)
-{
-	fid->f_seq = FID_SEQ_LOCAL_NAME;
-	fid->f_oid = oid;
-	fid->f_ver = 0;
-}
-
-/* For new FS (>= 2.4), the root FID will be changed to
- * [FID_SEQ_ROOT:1:0], for existing FS, (upgraded to 2.4),
- * the root FID will still be IGIF */
-static inline int fid_is_root(const struct lu_fid *fid)
-{
-	return unlikely((fid_seq(fid) == FID_SEQ_ROOT &&
-			 fid_oid(fid) == 1));
-}
-
-static inline int fid_is_dot_lustre(const struct lu_fid *fid)
-{
-	return unlikely(fid_seq(fid) == FID_SEQ_DOT_LUSTRE &&
-			fid_oid(fid) == FID_OID_DOT_LUSTRE);
-}
-
-static inline int fid_is_obf(const struct lu_fid *fid)
-{
-	return unlikely(fid_seq(fid) == FID_SEQ_DOT_LUSTRE &&
-			fid_oid(fid) == FID_OID_DOT_LUSTRE_OBF);
-}
-
-static inline int fid_is_otable_it(const struct lu_fid *fid)
-{
-	return unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE &&
-			fid_oid(fid) == OTABLE_IT_OID);
-}
-
-static inline int fid_is_acct(const struct lu_fid *fid)
-{
-	return fid_seq(fid) == FID_SEQ_LOCAL_FILE &&
-	       (fid_oid(fid) == ACCT_USER_OID ||
-		fid_oid(fid) == ACCT_GROUP_OID);
-}
-
-static inline int fid_is_quota(const struct lu_fid *fid)
-{
-	return fid_seq(fid) == FID_SEQ_QUOTA ||
-	       fid_seq(fid) == FID_SEQ_QUOTA_GLB;
-}
-
-static inline int fid_is_namespace_visible(const struct lu_fid *fid)
-{
-	const __u64 seq = fid_seq(fid);
-
-	/* Here, we cannot distinguish whether the normal FID is for OST
-	 * object or not. It is caller's duty to check more if needed. */
-	return (!fid_is_last_id(fid) &&
-		(fid_seq_is_norm(seq) || fid_seq_is_igif(seq))) ||
-	       fid_is_root(fid) || fid_is_dot_lustre(fid);
-}
-
-static inline int fid_seq_in_fldb(__u64 seq)
-{
-	return fid_seq_is_igif(seq) || fid_seq_is_norm(seq) ||
-	       fid_seq_is_root(seq) || fid_seq_is_dot(seq);
-}
-
-static inline void lu_last_id_fid(struct lu_fid *fid, __u64 seq)
-{
-	if (fid_seq_is_mdt0(seq)) {
-		fid->f_seq = fid_idif_seq(0, 0);
-	} else {
-		LASSERTF(fid_seq_is_norm(seq) || fid_seq_is_echo(seq) ||
-			 fid_seq_is_idif(seq), "%#llx\n", seq);
-		fid->f_seq = seq;
-	}
-	fid->f_oid = 0;
-	fid->f_ver = 0;
-}
-
-/* seq client type */
-enum lu_cli_type {
-	LUSTRE_SEQ_METADATA = 1,
-	LUSTRE_SEQ_DATA
-};
-
-enum lu_mgr_type {
-	LUSTRE_SEQ_SERVER,
-	LUSTRE_SEQ_CONTROLLER
-};
-
-struct lu_server_seq;
-
-/* Client sequence manager interface. */
-struct lu_client_seq {
-	/* Sequence-controller export. */
-	struct obd_export      *lcs_exp;
-	struct mutex		lcs_mutex;
-
-	/*
-	 * Range of allowed for allocation sequences. When using lu_client_seq on
-	 * clients, this contains meta-sequence range. And for servers this
-	 * contains super-sequence range.
-	 */
-	struct lu_seq_range	 lcs_space;
-
-	/* Seq related proc */
-	struct dentry		*lcs_debugfs_entry;
-
-	/* This holds last allocated fid in last obtained seq */
-	struct lu_fid	   lcs_fid;
-
-	/* LUSTRE_SEQ_METADATA or LUSTRE_SEQ_DATA */
-	enum lu_cli_type	lcs_type;
-
-	/*
-	 * Service uuid, passed from MDT + seq name to form unique seq name to
-	 * use it with procfs.
-	 */
-	char		    lcs_name[LUSTRE_MDT_MAXNAMELEN];
-
-	/*
-	 * Sequence width, that is how many objects may be allocated in one
-	 * sequence. Default value for it is LUSTRE_SEQ_MAX_WIDTH.
-	 */
-	__u64		   lcs_width;
-
-	/* Seq-server for direct talking */
-	struct lu_server_seq   *lcs_srv;
-
-	/* wait queue for fid allocation and update indicator */
-	wait_queue_head_t	     lcs_waitq;
-	int		     lcs_update;
-};
-
-/* server sequence manager interface */
-struct lu_server_seq {
-	/* Available sequences space */
-	struct lu_seq_range	 lss_space;
-
-	/* keeps highwater in lsr_end for seq allocation algorithm */
-	struct lu_seq_range	 lss_lowater_set;
-	struct lu_seq_range	 lss_hiwater_set;
-
-	/*
-	 * Device for server side seq manager needs (saving sequences to backing
-	 * store).
-	 */
-	struct dt_device       *lss_dev;
-
-	/* /seq file object device */
-	struct dt_object       *lss_obj;
-
-	/* LUSTRE_SEQ_SERVER or LUSTRE_SEQ_CONTROLLER */
-	enum lu_mgr_type       lss_type;
-
-	/* Client interface to request controller */
-	struct lu_client_seq   *lss_cli;
-
-	/* Mutex for protecting allocation */
-	struct mutex		lss_mutex;
-
-	/*
-	 * Service uuid, passed from MDT + seq name to form unique seq name to
-	 * use it with procfs.
-	 */
-	char		    lss_name[LUSTRE_MDT_MAXNAMELEN];
-
-	/*
-	 * Allocation chunks for super and meta sequences. Default values are
-	 * LUSTRE_SEQ_SUPER_WIDTH and LUSTRE_SEQ_META_WIDTH.
-	 */
-	__u64		   lss_width;
-
-	/*
-	 * minimum lss_alloc_set size that should be allocated from
-	 * lss_space
-	 */
-	__u64		   lss_set_width;
-
-	/* sync is needed for update operation */
-	__u32		   lss_need_sync;
-
-	/**
-	 * Pointer to site object, required to access site fld.
-	 */
-	struct seq_server_site  *lss_site;
-};
-
-/* Server methods */
-
-int seq_server_init(struct lu_server_seq *seq,
-		    struct dt_device *dev,
-		    const char *prefix,
-		    enum lu_mgr_type type,
-		    struct seq_server_site *ss,
-		    const struct lu_env *env);
-
-void seq_server_fini(struct lu_server_seq *seq,
-		     const struct lu_env *env);
-
-int seq_server_alloc_super(struct lu_server_seq *seq,
-			   struct lu_seq_range *out,
-			   const struct lu_env *env);
-
-int seq_server_alloc_meta(struct lu_server_seq *seq,
-			  struct lu_seq_range *out,
-			  const struct lu_env *env);
-
-int seq_server_set_cli(struct lu_server_seq *seq,
-		       struct lu_client_seq *cli,
-		       const struct lu_env *env);
-
-/* Client methods */
-int seq_client_init(struct lu_client_seq *seq,
-		    struct obd_export *exp,
-		    enum lu_cli_type type,
-		    const char *prefix,
-		    struct lu_server_seq *srv);
-
-void seq_client_fini(struct lu_client_seq *seq);
-
-void seq_client_flush(struct lu_client_seq *seq);
-
-int seq_client_alloc_fid(const struct lu_env *env, struct lu_client_seq *seq,
-			 struct lu_fid *fid);
-int seq_client_get_seq(const struct lu_env *env, struct lu_client_seq *seq,
-		       u64 *seqnr);
-int seq_site_fini(const struct lu_env *env, struct seq_server_site *ss);
-/* Fids common stuff */
-int fid_is_local(const struct lu_env *env,
-		 struct lu_site *site, const struct lu_fid *fid);
-
-enum lu_cli_type;
-int client_fid_init(struct obd_device *obd, struct obd_export *exp,
-		    enum lu_cli_type type);
-int client_fid_fini(struct obd_device *obd);
-
-/* fid locking */
-
-struct ldlm_namespace;
-
-/*
- * Build (DLM) resource name from FID.
- *
- * NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
- * but was moved into name[1] along with the OID to avoid consuming the
- * renaming name[2,3] fields that need to be used for the quota identifier.
- */
-static inline struct ldlm_res_id *
-fid_build_reg_res_name(const struct lu_fid *fid, struct ldlm_res_id *res)
-{
-	memset(res, 0, sizeof(*res));
-	res->name[LUSTRE_RES_ID_SEQ_OFF] = fid_seq(fid);
-	res->name[LUSTRE_RES_ID_VER_OID_OFF] = fid_ver_oid(fid);
-
-	return res;
-}
-
-/*
- * Return true if resource is for object identified by FID.
- */
-static inline int fid_res_name_eq(const struct lu_fid *fid,
-				  const struct ldlm_res_id *res)
-{
-	return res->name[LUSTRE_RES_ID_SEQ_OFF] == fid_seq(fid) &&
-	       res->name[LUSTRE_RES_ID_VER_OID_OFF] == fid_ver_oid(fid);
-}
-
-/*
- * Extract FID from LDLM resource. Reverse of fid_build_reg_res_name().
- */
-static inline struct lu_fid *
-fid_extract_from_res_name(struct lu_fid *fid, const struct ldlm_res_id *res)
-{
-	fid->f_seq = res->name[LUSTRE_RES_ID_SEQ_OFF];
-	fid->f_oid = (__u32)(res->name[LUSTRE_RES_ID_VER_OID_OFF]);
-	fid->f_ver = (__u32)(res->name[LUSTRE_RES_ID_VER_OID_OFF] >> 32);
-	LASSERT(fid_res_name_eq(fid, res));
-
-	return fid;
-}
-
-/*
- * Build (DLM) resource identifier from global quota FID and quota ID.
- */
-static inline struct ldlm_res_id *
-fid_build_quota_res_name(const struct lu_fid *glb_fid, union lquota_id *qid,
-		      struct ldlm_res_id *res)
-{
-	fid_build_reg_res_name(glb_fid, res);
-	res->name[LUSTRE_RES_ID_QUOTA_SEQ_OFF] = fid_seq(&qid->qid_fid);
-	res->name[LUSTRE_RES_ID_QUOTA_VER_OID_OFF] = fid_ver_oid(&qid->qid_fid);
-
-	return res;
-}
-
-/*
- * Extract global FID and quota ID from resource name
- */
-static inline void fid_extract_from_quota_res(struct lu_fid *glb_fid,
-					      union lquota_id *qid,
-					      const struct ldlm_res_id *res)
-{
-	fid_extract_from_res_name(glb_fid, res);
-	qid->qid_fid.f_seq = res->name[LUSTRE_RES_ID_QUOTA_SEQ_OFF];
-	qid->qid_fid.f_oid = (__u32)res->name[LUSTRE_RES_ID_QUOTA_VER_OID_OFF];
-	qid->qid_fid.f_ver =
-		(__u32)(res->name[LUSTRE_RES_ID_QUOTA_VER_OID_OFF] >> 32);
-}
-
-static inline struct ldlm_res_id *
-fid_build_pdo_res_name(const struct lu_fid *fid, unsigned int hash,
-		       struct ldlm_res_id *res)
-{
-	fid_build_reg_res_name(fid, res);
-	res->name[LUSTRE_RES_ID_HSH_OFF] = hash;
-
-	return res;
-}
-
-/**
- * Build DLM resource name from object id & seq, which will be removed
- * finally, when we replace ost_id with FID in data stack.
- *
- * Currently, resid from the old client, whose res[0] = object_id,
- * res[1] = object_seq, is just opposite with Metatdata
- * resid, where, res[0] = fid->f_seq, res[1] = fid->f_oid.
- * To unify the resid identification, we will reverse the data
- * resid to keep it same with Metadata resid, i.e.
- *
- * For resid from the old client,
- *    res[0] = objid,  res[1] = 0, still keep the original order,
- *    for compatibility.
- *
- * For new resid
- *    res will be built from normal FID directly, i.e. res[0] = f_seq,
- *    res[1] = f_oid + f_ver.
- */
-static inline void ostid_build_res_name(struct ost_id *oi,
-					struct ldlm_res_id *name)
-{
-	memset(name, 0, sizeof(*name));
-	if (fid_seq_is_mdt0(ostid_seq(oi))) {
-		name->name[LUSTRE_RES_ID_SEQ_OFF] = ostid_id(oi);
-		name->name[LUSTRE_RES_ID_VER_OID_OFF] = ostid_seq(oi);
-	} else {
-		fid_build_reg_res_name(&oi->oi_fid, name);
-	}
-}
-
-static inline void ostid_res_name_to_id(struct ost_id *oi,
-					struct ldlm_res_id *name)
-{
-	if (fid_seq_is_mdt0(name->name[LUSTRE_RES_ID_SEQ_OFF])) {
-		/* old resid */
-		ostid_set_seq(oi, name->name[LUSTRE_RES_ID_VER_OID_OFF]);
-		ostid_set_id(oi, name->name[LUSTRE_RES_ID_SEQ_OFF]);
-	} else {
-		/* new resid */
-		fid_extract_from_res_name(&oi->oi_fid, name);
-	}
-}
-
-/**
- * Return true if the resource is for the object identified by this id & group.
- */
-static inline int ostid_res_name_eq(struct ost_id *oi,
-				    struct ldlm_res_id *name)
-{
-	/* Note: it is just a trick here to save some effort, probably the
-	 * correct way would be turn them into the FID and compare */
-	if (fid_seq_is_mdt0(ostid_seq(oi))) {
-		return name->name[LUSTRE_RES_ID_SEQ_OFF] == ostid_id(oi) &&
-		       name->name[LUSTRE_RES_ID_VER_OID_OFF] == ostid_seq(oi);
-	} else {
-		return name->name[LUSTRE_RES_ID_SEQ_OFF] == ostid_seq(oi) &&
-		       name->name[LUSTRE_RES_ID_VER_OID_OFF] == ostid_id(oi);
-	}
-}
-
-/* The same as osc_build_res_name() */
-static inline void ost_fid_build_resid(const struct lu_fid *fid,
-				       struct ldlm_res_id *resname)
-{
-	if (fid_is_mdt0(fid) || fid_is_idif(fid)) {
-		struct ost_id oi;
-		oi.oi.oi_id = 0; /* gcc 4.7.2 complains otherwise */
-		if (fid_to_ostid(fid, &oi) != 0)
-			return;
-		ostid_build_res_name(&oi, resname);
-	} else {
-		fid_build_reg_res_name(fid, resname);
-	}
-}
-
-static inline void ost_fid_from_resid(struct lu_fid *fid,
-				      const struct ldlm_res_id *name)
-{
-	if (fid_seq_is_mdt0(name->name[LUSTRE_RES_ID_VER_OID_OFF])) {
-		/* old resid */
-		struct ost_id oi;
-		ostid_set_seq(&oi, name->name[LUSTRE_RES_ID_VER_OID_OFF]);
-		ostid_set_id(&oi, name->name[LUSTRE_RES_ID_SEQ_OFF]);
-		ostid_to_fid(fid, &oi, 0);
-	} else {
-		/* new resid */
-		fid_extract_from_res_name(fid, name);
-	}
-}
-
-/**
- * Flatten 128-bit FID values into a 64-bit value for use as an inode number.
- * For non-IGIF FIDs this starts just over 2^32, and continues without
- * conflict until 2^64, at which point we wrap the high 24 bits of the SEQ
- * into the range where there may not be many OID values in use, to minimize
- * the risk of conflict.
- *
- * Suppose LUSTRE_SEQ_MAX_WIDTH less than (1 << 24) which is currently true,
- * the time between re-used inode numbers is very long - 2^40 SEQ numbers,
- * or about 2^40 client mounts, if clients create less than 2^24 files/mount.
- */
-static inline __u64 fid_flatten(const struct lu_fid *fid)
-{
-	__u64 ino;
-	__u64 seq;
-
-	if (fid_is_igif(fid)) {
-		ino = lu_igif_ino(fid);
-		return ino;
-	}
-
-	seq = fid_seq(fid);
-
-	ino = (seq << 24) + ((seq >> 24) & 0xffffff0000ULL) + fid_oid(fid);
-
-	return ino ? ino : fid_oid(fid);
-}
-
-static inline __u32 fid_hash(const struct lu_fid *f, int bits)
-{
-	/* all objects with same id and different versions will belong to same
-	 * collisions list. */
-	return hash_long(fid_flatten(f), bits);
-}
-
-/**
- * map fid to 32 bit value for ino on 32bit systems. */
-static inline __u32 fid_flatten32(const struct lu_fid *fid)
-{
-	__u32 ino;
-	__u64 seq;
-
-	if (fid_is_igif(fid)) {
-		ino = lu_igif_ino(fid);
-		return ino;
-	}
-
-	seq = fid_seq(fid) - FID_SEQ_START;
-
-	/* Map the high bits of the OID into higher bits of the inode number so
-	 * that inodes generated at about the same time have a reduced chance
-	 * of collisions. This will give a period of 2^12 = 1024 unique clients
-	 * (from SEQ) and up to min(LUSTRE_SEQ_MAX_WIDTH, 2^20) = 128k objects
-	 * (from OID), or up to 128M inodes without collisions for new files. */
-	ino = ((seq & 0x000fffffULL) << 12) + ((seq >> 8) & 0xfffff000) +
-	       (seq >> (64 - (40-8)) & 0xffffff00) +
-	       (fid_oid(fid) & 0xff000fff) + ((fid_oid(fid) & 0x00fff000) << 8);
-
-	return ino ? ino : fid_oid(fid);
-}
-
-static inline int lu_fid_diff(struct lu_fid *fid1, struct lu_fid *fid2)
-{
-	LASSERTF(fid_seq(fid1) == fid_seq(fid2), "fid1:"DFID", fid2:"DFID"\n",
-		 PFID(fid1), PFID(fid2));
-
-	if (fid_is_idif(fid1) && fid_is_idif(fid2))
-		return fid_idif_id(fid1->f_seq, fid1->f_oid, fid1->f_ver) -
-		       fid_idif_id(fid2->f_seq, fid2->f_oid, fid2->f_ver);
-
-	return fid_oid(fid1) - fid_oid(fid2);
-}
-
-#define LUSTRE_SEQ_SRV_NAME "seq_srv"
-#define LUSTRE_SEQ_CTL_NAME "seq_ctl"
-
-/* Range common stuff */
-static inline void range_cpu_to_le(struct lu_seq_range *dst, const struct lu_seq_range *src)
-{
-	dst->lsr_start = cpu_to_le64(src->lsr_start);
-	dst->lsr_end = cpu_to_le64(src->lsr_end);
-	dst->lsr_index = cpu_to_le32(src->lsr_index);
-	dst->lsr_flags = cpu_to_le32(src->lsr_flags);
-}
-
-static inline void range_le_to_cpu(struct lu_seq_range *dst, const struct lu_seq_range *src)
-{
-	dst->lsr_start = le64_to_cpu(src->lsr_start);
-	dst->lsr_end = le64_to_cpu(src->lsr_end);
-	dst->lsr_index = le32_to_cpu(src->lsr_index);
-	dst->lsr_flags = le32_to_cpu(src->lsr_flags);
-}
-
-static inline void range_cpu_to_be(struct lu_seq_range *dst, const struct lu_seq_range *src)
-{
-	dst->lsr_start = cpu_to_be64(src->lsr_start);
-	dst->lsr_end = cpu_to_be64(src->lsr_end);
-	dst->lsr_index = cpu_to_be32(src->lsr_index);
-	dst->lsr_flags = cpu_to_be32(src->lsr_flags);
-}
-
-static inline void range_be_to_cpu(struct lu_seq_range *dst, const struct lu_seq_range *src)
-{
-	dst->lsr_start = be64_to_cpu(src->lsr_start);
-	dst->lsr_end = be64_to_cpu(src->lsr_end);
-	dst->lsr_index = be32_to_cpu(src->lsr_index);
-	dst->lsr_flags = be32_to_cpu(src->lsr_flags);
-}
-
-/** @} fid */
-
-#endif /* __LUSTRE_FID_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre_fld.h b/drivers/staging/lustre/lustre/include/lustre_fld.h
deleted file mode 100644
index c1f08dee3bd6..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_fld.h
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LINUX_FLD_H
-#define __LINUX_FLD_H
-
-/** \defgroup fld fld
- *
- * @{
- */
-
-#include "lustre/lustre_idl.h"
-#include "../../include/linux/libcfs/libcfs.h"
-
-struct lu_client_fld;
-struct lu_server_fld;
-struct lu_fld_hash;
-struct fld_cache;
-
-extern const struct dt_index_features fld_index_features;
-extern const char fld_index_name[];
-
-/*
- * FLD (Fid Location Database) interface.
- */
-enum {
-	LUSTRE_CLI_FLD_HASH_DHT = 0,
-	LUSTRE_CLI_FLD_HASH_RRB
-};
-
-
-struct lu_fld_target {
-	struct list_head	       ft_chain;
-	struct obd_export       *ft_exp;
-	struct lu_server_fld    *ft_srv;
-	__u64		    ft_idx;
-};
-
-struct lu_server_fld {
-	/**
-	 * /fld file object device */
-	struct dt_object	*lsf_obj;
-
-	/**
-	 * super sequence controller export, needed to forward fld
-	 * lookup  request. */
-	struct obd_export       *lsf_control_exp;
-
-	/**
-	 * Client FLD cache. */
-	struct fld_cache	*lsf_cache;
-
-	/**
-	 * Protect index modifications */
-	struct mutex		lsf_lock;
-
-	/**
-	 * Fld service name in form "fld-srv-lustre-MDTXXX" */
-	char		     lsf_name[LUSTRE_MDT_MAXNAMELEN];
-
-};
-
-struct lu_client_fld {
-	/**
-	 * Client side debugfs entry. */
-	struct dentry		*lcf_debugfs_entry;
-
-	/**
-	 * List of exports client FLD knows about. */
-	struct list_head	       lcf_targets;
-
-	/**
-	 * Current hash to be used to chose an export. */
-	struct lu_fld_hash      *lcf_hash;
-
-	/**
-	 * Exports count. */
-	int		      lcf_count;
-
-	/**
-	 * Lock protecting exports list and fld_hash. */
-	spinlock_t		 lcf_lock;
-
-	/**
-	 * Client FLD cache. */
-	struct fld_cache	*lcf_cache;
-
-	/**
-	 * Client fld debugfs entry name. */
-	char			 lcf_name[LUSTRE_MDT_MAXNAMELEN];
-
-	int			 lcf_flags;
-};
-
-/* Client methods */
-int fld_client_init(struct lu_client_fld *fld,
-		    const char *prefix, int hash);
-
-void fld_client_fini(struct lu_client_fld *fld);
-
-void fld_client_flush(struct lu_client_fld *fld);
-
-int fld_client_lookup(struct lu_client_fld *fld, u64 seq, u32 *mds,
-		      __u32 flags, const struct lu_env *env);
-
-int fld_client_create(struct lu_client_fld *fld,
-		      struct lu_seq_range *range,
-		      const struct lu_env *env);
-
-int fld_client_delete(struct lu_client_fld *fld, u64 seq,
-		      const struct lu_env *env);
-
-int fld_client_add_target(struct lu_client_fld *fld,
-			  struct lu_fld_target *tar);
-
-int fld_client_del_target(struct lu_client_fld *fld,
-			  __u64 idx);
-
-void fld_client_debugfs_fini(struct lu_client_fld *fld);
-
-/** @} fld */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_ha.h b/drivers/staging/lustre/lustre/include/lustre_ha.h
deleted file mode 100644
index f3ae02b3eef3..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_ha.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LUSTRE_HA_H
-#define _LUSTRE_HA_H
-
-/** \defgroup ha ha
- *
- * @{
- */
-
-struct obd_import;
-struct obd_export;
-struct obd_device;
-struct ptlrpc_request;
-
-
-int ptlrpc_replay(struct obd_import *imp);
-int ptlrpc_resend(struct obd_import *imp);
-void ptlrpc_free_committed(struct obd_import *imp);
-void ptlrpc_wake_delayed(struct obd_import *imp);
-int ptlrpc_recover_import(struct obd_import *imp, char *new_uuid, int async);
-int ptlrpc_set_import_active(struct obd_import *imp, int active);
-void ptlrpc_activate_import(struct obd_import *imp);
-void ptlrpc_deactivate_import(struct obd_import *imp);
-void ptlrpc_invalidate_import(struct obd_import *imp);
-void ptlrpc_fail_import(struct obd_import *imp, __u32 conn_cnt);
-
-/** @} ha */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_handles.h b/drivers/staging/lustre/lustre/include/lustre_handles.h
deleted file mode 100644
index 726bbd3eaf55..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_handles.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LUSTRE_HANDLES_H_
-#define __LUSTRE_HANDLES_H_
-
-/** \defgroup handles handles
- *
- * @{
- */
-
-#include <linux/atomic.h>
-#include <linux/list.h>
-#include <linux/rcupdate.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-
-struct portals_handle_ops {
-	void (*hop_addref)(void *object);
-	void (*hop_free)(void *object, int size);
-};
-
-/* These handles are most easily used by having them appear at the very top of
- * whatever object that you want to make handles for.  ie:
- *
- * struct ldlm_lock {
- *	 struct portals_handle handle;
- *	 ...
- * };
- *
- * Now you're able to assign the results of cookie2handle directly to an
- * ldlm_lock.  If it's not at the top, you'll want to use container_of()
- * to compute the start of the structure based on the handle field. */
-struct portals_handle {
-	struct list_head			h_link;
-	__u64				h_cookie;
-	struct portals_handle_ops	*h_ops;
-
-	/* newly added fields to handle the RCU issue. -jxiong */
-	struct rcu_head			h_rcu;
-	spinlock_t			h_lock;
-	unsigned int			h_size:31;
-	unsigned int			h_in:1;
-};
-#define RCU2HANDLE(rcu)    container_of(rcu, struct portals_handle, h_rcu)
-
-/* handles.c */
-
-/* Add a handle to the hash table */
-void class_handle_hash(struct portals_handle *,
-		       struct portals_handle_ops *ops);
-void class_handle_unhash(struct portals_handle *);
-void class_handle_hash_back(struct portals_handle *);
-void *class_handle2object(__u64 cookie);
-void class_handle_free_cb(struct rcu_head *rcu);
-int class_handle_init(void);
-void class_handle_cleanup(void);
-
-/** @} handles */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_import.h b/drivers/staging/lustre/lustre/include/lustre_import.h
deleted file mode 100644
index 5a38f3d5e011..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_import.h
+++ /dev/null
@@ -1,385 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-/** \defgroup obd_import PtlRPC import definitions
- * Imports are client-side representation of remote obd target.
- *
- * @{
- */
-
-#ifndef __IMPORT_H
-#define __IMPORT_H
-
-/** \defgroup export export
- *
- * @{
- */
-
-#include "lustre_handles.h"
-#include "lustre/lustre_idl.h"
-
-
-/**
- * Adaptive Timeout stuff
- *
- * @{
- */
-#define D_ADAPTTO D_OTHER
-#define AT_BINS 4		  /* "bin" means "N seconds of history" */
-#define AT_FLG_NOHIST 0x1	  /* use last reported value only */
-
-struct adaptive_timeout {
-	time_t		at_binstart;	 /* bin start time */
-	unsigned int	at_hist[AT_BINS];    /* timeout history bins */
-	unsigned int	at_flags;
-	unsigned int	at_current;	  /* current timeout value */
-	unsigned int	at_worst_ever;       /* worst-ever timeout value */
-	time_t		at_worst_time;       /* worst-ever timeout timestamp */
-	spinlock_t	at_lock;
-};
-
-struct ptlrpc_at_array {
-	struct list_head       *paa_reqs_array; /** array to hold requests */
-	__u32	     paa_size;       /** the size of array */
-	__u32	     paa_count;      /** the total count of reqs */
-	time_t	    paa_deadline;   /** the earliest deadline of reqs */
-	__u32	    *paa_reqs_count; /** the count of reqs in each entry */
-};
-
-#define IMP_AT_MAX_PORTALS 8
-struct imp_at {
-	int		     iat_portal[IMP_AT_MAX_PORTALS];
-	struct adaptive_timeout iat_net_latency;
-	struct adaptive_timeout iat_service_estimate[IMP_AT_MAX_PORTALS];
-};
-
-
-/** @} */
-
-/** Possible import states */
-enum lustre_imp_state {
-	LUSTRE_IMP_CLOSED     = 1,
-	LUSTRE_IMP_NEW	= 2,
-	LUSTRE_IMP_DISCON     = 3,
-	LUSTRE_IMP_CONNECTING = 4,
-	LUSTRE_IMP_REPLAY     = 5,
-	LUSTRE_IMP_REPLAY_LOCKS = 6,
-	LUSTRE_IMP_REPLAY_WAIT  = 7,
-	LUSTRE_IMP_RECOVER    = 8,
-	LUSTRE_IMP_FULL       = 9,
-	LUSTRE_IMP_EVICTED    = 10,
-};
-
-/** Returns test string representation of numeric import state \a state */
-static inline char *ptlrpc_import_state_name(enum lustre_imp_state state)
-{
-	static char *import_state_names[] = {
-		"<UNKNOWN>", "CLOSED",  "NEW", "DISCONN",
-		"CONNECTING", "REPLAY", "REPLAY_LOCKS", "REPLAY_WAIT",
-		"RECOVER", "FULL", "EVICTED",
-	};
-
-	LASSERT (state <= LUSTRE_IMP_EVICTED);
-	return import_state_names[state];
-}
-
-/**
- * List of import event types
- */
-enum obd_import_event {
-	IMP_EVENT_DISCON     = 0x808001,
-	IMP_EVENT_INACTIVE   = 0x808002,
-	IMP_EVENT_INVALIDATE = 0x808003,
-	IMP_EVENT_ACTIVE     = 0x808004,
-	IMP_EVENT_OCD	= 0x808005,
-	IMP_EVENT_DEACTIVATE = 0x808006,
-	IMP_EVENT_ACTIVATE   = 0x808007,
-};
-
-/**
- * Definition of import connection structure
- */
-struct obd_import_conn {
-	/** Item for linking connections together */
-	struct list_head		oic_item;
-	/** Pointer to actual PortalRPC connection */
-	struct ptlrpc_connection *oic_conn;
-	/** uuid of remote side */
-	struct obd_uuid	   oic_uuid;
-	/**
-	 * Time (64 bit jiffies) of last connection attempt on this connection
-	 */
-	__u64		     oic_last_attempt;
-};
-
-/* state history */
-#define IMP_STATE_HIST_LEN 16
-struct import_state_hist {
-	enum lustre_imp_state ish_state;
-	time_t		ish_time;
-};
-
-/**
- * Definition of PortalRPC import structure.
- * Imports are representing client-side view to remote target.
- */
-struct obd_import {
-	/** Local handle (== id) for this import. */
-	struct portals_handle     imp_handle;
-	/** Reference counter */
-	atomic_t	      imp_refcount;
-	struct lustre_handle      imp_dlm_handle; /* client's ldlm export */
-	/** Currently active connection */
-	struct ptlrpc_connection *imp_connection;
-	/** PortalRPC client structure for this import */
-	struct ptlrpc_client     *imp_client;
-	/** List element for linking into pinger chain */
-	struct list_head		imp_pinger_chain;
-	/** List element for linking into chain for destruction */
-	struct list_head		imp_zombie_chain;
-
-	/**
-	 * Lists of requests that are retained for replay, waiting for a reply,
-	 * or waiting for recovery to complete, respectively.
-	 * @{
-	 */
-	struct list_head		imp_replay_list;
-	struct list_head		imp_sending_list;
-	struct list_head		imp_delayed_list;
-	/** @} */
-
-	/**
-	 * List of requests that are retained for committed open replay. Once
-	 * open is committed, open replay request will be moved from the
-	 * imp_replay_list into the imp_committed_list.
-	 * The imp_replay_cursor is for accelerating searching during replay.
-	 * @{
-	 */
-	struct list_head		imp_committed_list;
-	struct list_head	       *imp_replay_cursor;
-	/** @} */
-
-	/** obd device for this import */
-	struct obd_device	*imp_obd;
-
-	/**
-	 * some seciruty-related fields
-	 * @{
-	 */
-	struct ptlrpc_sec	*imp_sec;
-	struct mutex		  imp_sec_mutex;
-	unsigned long		imp_sec_expire;
-	/** @} */
-
-	/** Wait queue for those who need to wait for recovery completion */
-	wait_queue_head_t	       imp_recovery_waitq;
-
-	/** Number of requests currently in-flight */
-	atomic_t	      imp_inflight;
-	/** Number of requests currently unregistering */
-	atomic_t	      imp_unregistering;
-	/** Number of replay requests inflight */
-	atomic_t	      imp_replay_inflight;
-	/** Number of currently happening import invalidations */
-	atomic_t	      imp_inval_count;
-	/** Numbner of request timeouts */
-	atomic_t	      imp_timeouts;
-	/** Current import state */
-	enum lustre_imp_state     imp_state;
-	/** Last replay state */
-	enum lustre_imp_state	  imp_replay_state;
-	/** History of import states */
-	struct import_state_hist  imp_state_hist[IMP_STATE_HIST_LEN];
-	int		       imp_state_hist_idx;
-	/** Current import generation. Incremented on every reconnect */
-	int		       imp_generation;
-	/** Incremented every time we send reconnection request */
-	__u32		     imp_conn_cnt;
-       /**
-	* \see ptlrpc_free_committed remembers imp_generation value here
-	* after a check to save on unnecessary replay list iterations
-	*/
-	int		       imp_last_generation_checked;
-	/** Last transno we replayed */
-	__u64		     imp_last_replay_transno;
-	/** Last transno committed on remote side */
-	__u64		     imp_peer_committed_transno;
-	/**
-	 * \see ptlrpc_free_committed remembers last_transno since its last
-	 * check here and if last_transno did not change since last run of
-	 * ptlrpc_free_committed and import generation is the same, we can
-	 * skip looking for requests to remove from replay list as optimisation
-	 */
-	__u64		     imp_last_transno_checked;
-	/**
-	 * Remote export handle. This is how remote side knows what export
-	 * we are talking to. Filled from response to connect request
-	 */
-	struct lustre_handle      imp_remote_handle;
-	/** When to perform next ping. time in jiffies. */
-	unsigned long		imp_next_ping;
-	/** When we last successfully connected. time in 64bit jiffies */
-	__u64		     imp_last_success_conn;
-
-	/** List of all possible connection for import. */
-	struct list_head		imp_conn_list;
-	/**
-	 * Current connection. \a imp_connection is imp_conn_current->oic_conn
-	 */
-	struct obd_import_conn   *imp_conn_current;
-
-	/** Protects flags, level, generation, conn_cnt, *_list */
-	spinlock_t		  imp_lock;
-
-	/* flags */
-	unsigned long	     imp_no_timeout:1, /* timeouts are disabled */
-				  imp_invalid:1,    /* evicted */
-				  /* administratively disabled */
-				  imp_deactive:1,
-				  /* try to recover the import */
-				  imp_replayable:1,
-				  /* don't run recovery (timeout instead) */
-				  imp_dlm_fake:1,
-				  /* use 1/2 timeout on MDS' OSCs */
-				  imp_server_timeout:1,
-				  /* VBR: imp in delayed recovery */
-				  imp_delayed_recovery:1,
-				  /* VBR: if gap was found then no lock replays
-				   */
-				  imp_no_lock_replay:1,
-				  /* recovery by versions was failed */
-				  imp_vbr_failed:1,
-				  /* force an immediate ping */
-				  imp_force_verify:1,
-				  /* force a scheduled ping */
-				  imp_force_next_verify:1,
-				  /* pingable */
-				  imp_pingable:1,
-				  /* resend for replay */
-				  imp_resend_replay:1,
-				  /* disable normal recovery, for test only. */
-				  imp_no_pinger_recover:1,
-				  /* need IR MNE swab */
-				  imp_need_mne_swab:1,
-				  /* import must be reconnected instead of
-				   * chose new connection */
-				  imp_force_reconnect:1,
-				  /* import has tried to connect with server */
-				  imp_connect_tried:1;
-	__u32		     imp_connect_op;
-	struct obd_connect_data   imp_connect_data;
-	__u64		     imp_connect_flags_orig;
-	int		       imp_connect_error;
-
-	__u32		     imp_msg_magic;
-	__u32		     imp_msghdr_flags;       /* adjusted based on server capability */
-
-	struct ptlrpc_request_pool *imp_rq_pool;	  /* emergency request pool */
-
-	struct imp_at	     imp_at;		 /* adaptive timeout data */
-	time_t		    imp_last_reply_time;    /* for health check */
-};
-
-typedef void (*obd_import_callback)(struct obd_import *imp, void *closure,
-				    int event, void *event_arg, void *cb_data);
-
-/**
- * Structure for import observer.
- * It is possible to register "observer" on an import and every time
- * something happens to an import (like connect/evict/disconnect)
- * obderver will get its callback called with event type
- */
-struct obd_import_observer {
-	struct list_head	   oio_chain;
-	obd_import_callback  oio_cb;
-	void		*oio_cb_data;
-};
-
-void class_observe_import(struct obd_import *imp, obd_import_callback cb,
-			  void *cb_data);
-void class_unobserve_import(struct obd_import *imp, obd_import_callback cb,
-			    void *cb_data);
-void class_notify_import_observers(struct obd_import *imp, int event,
-				   void *event_arg);
-
-/* import.c */
-static inline unsigned int at_est2timeout(unsigned int val)
-{
-	/* add an arbitrary minimum: 125% +5 sec */
-	return (val + (val >> 2) + 5);
-}
-
-static inline unsigned int at_timeout2est(unsigned int val)
-{
-	/* restore estimate value from timeout: e=4/5(t-5) */
-	LASSERT(val);
-	return (max((val << 2) / 5, 5U) - 4);
-}
-
-static inline void at_reset(struct adaptive_timeout *at, int val)
-{
-	spin_lock(&at->at_lock);
-	at->at_current = val;
-	at->at_worst_ever = val;
-	at->at_worst_time = get_seconds();
-	spin_unlock(&at->at_lock);
-}
-static inline void at_init(struct adaptive_timeout *at, int val, int flags)
-{
-	memset(at, 0, sizeof(*at));
-	spin_lock_init(&at->at_lock);
-	at->at_flags = flags;
-	at_reset(at, val);
-}
-extern unsigned int at_min;
-static inline int at_get(struct adaptive_timeout *at)
-{
-	return (at->at_current > at_min) ? at->at_current : at_min;
-}
-int at_measured(struct adaptive_timeout *at, unsigned int val);
-int import_at_get_index(struct obd_import *imp, int portal);
-extern unsigned int at_max;
-#define AT_OFF (at_max == 0)
-
-/* genops.c */
-struct obd_export;
-struct obd_import *class_exp2cliimp(struct obd_export *);
-struct obd_import *class_conn2cliimp(struct lustre_handle *);
-
-/** @} import */
-
-#endif /* __IMPORT_H */
-
-/** @} obd_import */
diff --git a/drivers/staging/lustre/lustre/include/lustre_intent.h b/drivers/staging/lustre/lustre/include/lustre_intent.h
deleted file mode 100644
index c491d52d86a2..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_intent.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef LUSTRE_INTENT_H
-#define LUSTRE_INTENT_H
-
-/* intent IT_XXX are defined in lustre/include/obd.h */
-struct lustre_intent_data {
-	int		it_disposition;
-	int		it_status;
-	__u64		it_lock_handle;
-	__u64		it_lock_bits;
-	int		it_lock_mode;
-	int		it_remote_lock_mode;
-	__u64	   it_remote_lock_handle;
-	void	   *it_data;
-	unsigned int    it_lock_set:1;
-};
-
-struct lookup_intent {
-	int     it_op;
-	int     it_create_mode;
-	__u64   it_flags;
-	union {
-		struct lustre_intent_data lustre;
-	} d;
-};
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h
deleted file mode 100644
index 43ee9f0eb4d4..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_lib.h
+++ /dev/null
@@ -1,661 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_lib.h
- *
- * Basic Lustre library routines.
- */
-
-#ifndef _LUSTRE_LIB_H
-#define _LUSTRE_LIB_H
-
-/** \defgroup lib lib
- *
- * @{
- */
-
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/types.h>
-#include "../../include/linux/libcfs/libcfs.h"
-#include "lustre/lustre_idl.h"
-#include "lustre_ver.h"
-#include "lustre_cfg.h"
-
-/* target.c */
-struct kstatfs;
-struct ptlrpc_request;
-struct obd_export;
-struct lu_target;
-struct l_wait_info;
-#include "lustre_ha.h"
-#include "lustre_net.h"
-
-#define LI_POISON 0x5a5a5a5a
-#if BITS_PER_LONG > 32
-# define LL_POISON 0x5a5a5a5a5a5a5a5aL
-#else
-# define LL_POISON 0x5a5a5a5aL
-#endif
-#define LP_POISON ((void *)LL_POISON)
-
-int target_pack_pool_reply(struct ptlrpc_request *req);
-int do_set_info_async(struct obd_import *imp,
-		      int opcode, int version,
-		      u32 keylen, void *key,
-		      u32 vallen, void *val,
-		      struct ptlrpc_request_set *set);
-
-#define OBD_RECOVERY_MAX_TIME (obd_timeout * 18) /* b13079 */
-#define OBD_MAX_IOCTL_BUFFER CONFIG_LUSTRE_OBD_MAX_IOCTL_BUFFER
-
-void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id);
-
-/* client.c */
-
-int client_sanobd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg);
-struct client_obd *client_conn2cli(struct lustre_handle *conn);
-
-struct md_open_data;
-struct obd_client_handle {
-	struct lustre_handle	 och_fh;
-	struct lu_fid		 och_fid;
-	struct md_open_data	*och_mod;
-	struct lustre_handle	 och_lease_handle; /* open lock for lease */
-	__u32			 och_magic;
-	fmode_t			 och_flags;
-};
-#define OBD_CLIENT_HANDLE_MAGIC 0xd15ea5ed
-
-/* statfs_pack.c */
-void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs);
-void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs);
-
-/*
- * For md echo client
- */
-enum md_echo_cmd {
-	ECHO_MD_CREATE       = 1, /* Open/Create file on MDT */
-	ECHO_MD_MKDIR	= 2, /* Mkdir on MDT */
-	ECHO_MD_DESTROY      = 3, /* Unlink file on MDT */
-	ECHO_MD_RMDIR	= 4, /* Rmdir on MDT */
-	ECHO_MD_LOOKUP       = 5, /* Lookup on MDT */
-	ECHO_MD_GETATTR      = 6, /* Getattr on MDT */
-	ECHO_MD_SETATTR      = 7, /* Setattr on MDT */
-	ECHO_MD_ALLOC_FID    = 8, /* Get FIDs from MDT */
-};
-
-/*
- *   OBD IOCTLS
- */
-#define OBD_IOCTL_VERSION 0x00010004
-
-struct obd_ioctl_data {
-	__u32 ioc_len;
-	__u32 ioc_version;
-
-	union {
-		__u64 ioc_cookie;
-		__u64 ioc_u64_1;
-	};
-	union {
-		__u32 ioc_conn1;
-		__u32 ioc_u32_1;
-	};
-	union {
-		__u32 ioc_conn2;
-		__u32 ioc_u32_2;
-	};
-
-	struct obdo ioc_obdo1;
-	struct obdo ioc_obdo2;
-
-	u64	 ioc_count;
-	u64	 ioc_offset;
-	__u32    ioc_dev;
-	__u32    ioc_command;
-
-	__u64 ioc_nid;
-	__u32 ioc_nal;
-	__u32 ioc_type;
-
-	/* buffers the kernel will treat as user pointers */
-	__u32  ioc_plen1;
-	char  *ioc_pbuf1;
-	__u32  ioc_plen2;
-	char  *ioc_pbuf2;
-
-	/* inline buffers for various arguments */
-	__u32  ioc_inllen1;
-	char  *ioc_inlbuf1;
-	__u32  ioc_inllen2;
-	char  *ioc_inlbuf2;
-	__u32  ioc_inllen3;
-	char  *ioc_inlbuf3;
-	__u32  ioc_inllen4;
-	char  *ioc_inlbuf4;
-
-	char    ioc_bulk[0];
-};
-
-struct obd_ioctl_hdr {
-	__u32 ioc_len;
-	__u32 ioc_version;
-};
-
-static inline int obd_ioctl_packlen(struct obd_ioctl_data *data)
-{
-	int len = cfs_size_round(sizeof(struct obd_ioctl_data));
-	len += cfs_size_round(data->ioc_inllen1);
-	len += cfs_size_round(data->ioc_inllen2);
-	len += cfs_size_round(data->ioc_inllen3);
-	len += cfs_size_round(data->ioc_inllen4);
-	return len;
-}
-
-
-static inline int obd_ioctl_is_invalid(struct obd_ioctl_data *data)
-{
-	if (data->ioc_len > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_len larger than %d\n",
-		       OBD_MAX_IOCTL_BUFFER);
-		return 1;
-	}
-	if (data->ioc_inllen1 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen1 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inllen2 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen2 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inllen3 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen3 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inllen4 > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("OBD ioctl: ioc_inllen4 larger than ioc_len\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
-		CERROR("OBD ioctl: inlbuf1 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
-		CERROR("OBD ioctl: inlbuf2 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf3 && !data->ioc_inllen3) {
-		CERROR("OBD ioctl: inlbuf3 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_inlbuf4 && !data->ioc_inllen4) {
-		CERROR("OBD ioctl: inlbuf4 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_pbuf1 && !data->ioc_plen1) {
-		CERROR("OBD ioctl: pbuf1 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_pbuf2 && !data->ioc_plen2) {
-		CERROR("OBD ioctl: pbuf2 pointer but 0 length\n");
-		return 1;
-	}
-	if (data->ioc_plen1 && !data->ioc_pbuf1) {
-		CERROR("OBD ioctl: plen1 set but NULL pointer\n");
-		return 1;
-	}
-	if (data->ioc_plen2 && !data->ioc_pbuf2) {
-		CERROR("OBD ioctl: plen2 set but NULL pointer\n");
-		return 1;
-	}
-	if (obd_ioctl_packlen(data) > data->ioc_len) {
-		CERROR("OBD ioctl: packlen exceeds ioc_len (%d > %d)\n",
-		       obd_ioctl_packlen(data), data->ioc_len);
-		return 1;
-	}
-	return 0;
-}
-
-
-#include "obd_support.h"
-
-/* function defined in lustre/obdclass/<platform>/<platform>-module.c */
-int obd_ioctl_getdata(char **buf, int *len, void *arg);
-int obd_ioctl_popdata(void *arg, void *data, int len);
-
-static inline void obd_ioctl_freedata(char *buf, int len)
-{
-	OBD_FREE_LARGE(buf, len);
-	return;
-}
-
-/*
- * BSD ioctl description:
- * #define IOC_V1       _IOR(g, n1, long)
- * #define IOC_V2       _IOW(g, n2, long)
- *
- * ioctl(f, IOC_V1, arg);
- * arg will be treated as a long value,
- *
- * ioctl(f, IOC_V2, arg)
- * arg will be treated as a pointer, bsd will call
- * copyin(buf, arg, sizeof(long))
- *
- * To make BSD ioctl handles argument correctly and simplely,
- * we change _IOR to _IOWR so BSD will copyin obd_ioctl_data
- * for us. Does this change affect Linux?  (XXX Liang)
- */
-#define OBD_IOC_DATA_TYPE long
-
-#define OBD_IOC_CREATE		 _IOWR('f', 101, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_DESTROY		_IOW ('f', 104, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PREALLOCATE	    _IOWR('f', 105, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_SETATTR		_IOW ('f', 107, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_GETATTR		_IOWR ('f', 108, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_READ		   _IOWR('f', 109, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_WRITE		  _IOWR('f', 110, OBD_IOC_DATA_TYPE)
-
-
-#define OBD_IOC_STATFS		 _IOWR('f', 113, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_SYNC		   _IOW ('f', 114, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_READ2		  _IOWR('f', 115, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_FORMAT		 _IOWR('f', 116, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PARTITION	      _IOWR('f', 117, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_COPY		   _IOWR('f', 120, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_MIGR		   _IOWR('f', 121, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PUNCH		  _IOWR('f', 122, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_MODULE_DEBUG	   _IOWR('f', 124, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_BRW_READ	       _IOWR('f', 125, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_BRW_WRITE	      _IOWR('f', 126, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_NAME2DEV	       _IOWR('f', 127, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_UUID2DEV	       _IOWR('f', 130, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_GETNAME		_IOWR('f', 131, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_GETMDNAME	      _IOR('f', 131, char[MAX_OBD_NAME])
-#define OBD_IOC_GETDTNAME	       OBD_IOC_GETNAME
-
-#define OBD_IOC_LOV_GET_CONFIG	 _IOWR('f', 132, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_CLIENT_RECOVER	 _IOW ('f', 133, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PING_TARGET	    _IOW ('f', 136, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_DEC_FS_USE_COUNT       _IO  ('f', 139      )
-#define OBD_IOC_NO_TRANSNO	     _IOW ('f', 140, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_SET_READONLY	   _IOW ('f', 141, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_ABORT_RECOVERY	 _IOR ('f', 142, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_ROOT_SQUASH	    _IOWR('f', 143, OBD_IOC_DATA_TYPE)
-
-#define OBD_GET_VERSION		_IOWR ('f', 144, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_GSS_SUPPORT	    _IOWR('f', 145, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_CLOSE_UUID	     _IOWR ('f', 147, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_CHANGELOG_SEND	 _IOW ('f', 148, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_GETDEVICE	      _IOWR ('f', 149, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_FID2PATH	       _IOWR ('f', 150, OBD_IOC_DATA_TYPE)
-/* see also <lustre/lustre_user.h> for ioctls 151-153 */
-/* OBD_IOC_LOV_SETSTRIPE: See also LL_IOC_LOV_SETSTRIPE */
-#define OBD_IOC_LOV_SETSTRIPE	  _IOW ('f', 154, OBD_IOC_DATA_TYPE)
-/* OBD_IOC_LOV_GETSTRIPE: See also LL_IOC_LOV_GETSTRIPE */
-#define OBD_IOC_LOV_GETSTRIPE	  _IOW ('f', 155, OBD_IOC_DATA_TYPE)
-/* OBD_IOC_LOV_SETEA: See also LL_IOC_LOV_SETEA */
-#define OBD_IOC_LOV_SETEA	      _IOW ('f', 156, OBD_IOC_DATA_TYPE)
-/* see <lustre/lustre_user.h> for ioctls 157-159 */
-/* OBD_IOC_QUOTACHECK: See also LL_IOC_QUOTACHECK */
-#define OBD_IOC_QUOTACHECK	     _IOW ('f', 160, int)
-/* OBD_IOC_POLL_QUOTACHECK: See also LL_IOC_POLL_QUOTACHECK */
-#define OBD_IOC_POLL_QUOTACHECK	_IOR ('f', 161, struct if_quotacheck *)
-/* OBD_IOC_QUOTACTL: See also LL_IOC_QUOTACTL */
-#define OBD_IOC_QUOTACTL	       _IOWR('f', 162, struct if_quotactl)
-/* see  also <lustre/lustre_user.h> for ioctls 163-176 */
-#define OBD_IOC_CHANGELOG_REG	  _IOW ('f', 177, struct obd_ioctl_data)
-#define OBD_IOC_CHANGELOG_DEREG	_IOW ('f', 178, struct obd_ioctl_data)
-#define OBD_IOC_CHANGELOG_CLEAR	_IOW ('f', 179, struct obd_ioctl_data)
-#define OBD_IOC_RECORD		 _IOWR('f', 180, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_ENDRECORD	      _IOWR('f', 181, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PARSE		  _IOWR('f', 182, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_DORECORD	       _IOWR('f', 183, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PROCESS_CFG	    _IOWR('f', 184, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_DUMP_LOG	       _IOWR('f', 185, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_CLEAR_LOG	      _IOWR('f', 186, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PARAM		  _IOW ('f', 187, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_POOL		   _IOWR('f', 188, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_REPLACE_NIDS	   _IOWR('f', 189, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_CATLOGLIST	     _IOWR('f', 190, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_INFO	      _IOWR('f', 191, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_PRINT	     _IOWR('f', 192, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_CANCEL	    _IOWR('f', 193, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_REMOVE	    _IOWR('f', 194, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_LLOG_CHECK	     _IOWR('f', 195, OBD_IOC_DATA_TYPE)
-/* OBD_IOC_LLOG_CATINFO is deprecated */
-#define OBD_IOC_LLOG_CATINFO	   _IOWR('f', 196, OBD_IOC_DATA_TYPE)
-
-#define ECHO_IOC_GET_STRIPE	    _IOWR('f', 200, OBD_IOC_DATA_TYPE)
-#define ECHO_IOC_SET_STRIPE	    _IOWR('f', 201, OBD_IOC_DATA_TYPE)
-#define ECHO_IOC_ENQUEUE	       _IOWR('f', 202, OBD_IOC_DATA_TYPE)
-#define ECHO_IOC_CANCEL		_IOWR('f', 203, OBD_IOC_DATA_TYPE)
-
-#define OBD_IOC_GET_OBJ_VERSION	_IOR('f', 210, OBD_IOC_DATA_TYPE)
-
-/* <lustre/lustre_user.h> defines ioctl number 218-219 */
-#define OBD_IOC_GET_MNTOPT	     _IOW('f', 220, mntopt_t)
-
-#define OBD_IOC_ECHO_MD		_IOR('f', 221, struct obd_ioctl_data)
-#define OBD_IOC_ECHO_ALLOC_SEQ	 _IOWR('f', 222, struct obd_ioctl_data)
-
-#define OBD_IOC_START_LFSCK	       _IOWR('f', 230, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_STOP_LFSCK	       _IOW('f', 231, OBD_IOC_DATA_TYPE)
-#define OBD_IOC_PAUSE_LFSCK	       _IOW('f', 232, OBD_IOC_DATA_TYPE)
-
-/* XXX _IOWR('f', 250, long) has been defined in
- * libcfs/include/libcfs/libcfs_private.h for debug, don't use it
- */
-
-/* Until such time as we get_info the per-stripe maximum from the OST,
- * we define this to be 2T - 4k, which is the ext3 maxbytes. */
-#define LUSTRE_STRIPE_MAXBYTES 0x1fffffff000ULL
-
-/* Special values for remove LOV EA from disk */
-#define LOVEA_DELETE_VALUES(size, count, offset) (size == 0 && count == 0 && \
-						 offset == (typeof(offset))(-1))
-
-/* #define POISON_BULK 0 */
-
-/*
- * l_wait_event is a flexible sleeping function, permitting simple caller
- * configuration of interrupt and timeout sensitivity along with actions to
- * be performed in the event of either exception.
- *
- * The first form of usage looks like this:
- *
- * struct l_wait_info lwi = LWI_TIMEOUT_INTR(timeout, timeout_handler,
- *					   intr_handler, callback_data);
- * rc = l_wait_event(waitq, condition, &lwi);
- *
- * l_wait_event() makes the current process wait on 'waitq' until 'condition'
- * is TRUE or a "killable" signal (SIGTERM, SIKGILL, SIGINT) is pending.  It
- * returns 0 to signify 'condition' is TRUE, but if a signal wakes it before
- * 'condition' becomes true, it optionally calls the specified 'intr_handler'
- * if not NULL, and returns -EINTR.
- *
- * If a non-zero timeout is specified, signals are ignored until the timeout
- * has expired.  At this time, if 'timeout_handler' is not NULL it is called.
- * If it returns FALSE l_wait_event() continues to wait as described above with
- * signals enabled.  Otherwise it returns -ETIMEDOUT.
- *
- * LWI_INTR(intr_handler, callback_data) is shorthand for
- * LWI_TIMEOUT_INTR(0, NULL, intr_handler, callback_data)
- *
- * The second form of usage looks like this:
- *
- * struct l_wait_info lwi = LWI_TIMEOUT(timeout, timeout_handler);
- * rc = l_wait_event(waitq, condition, &lwi);
- *
- * This form is the same as the first except that it COMPLETELY IGNORES
- * SIGNALS.  The caller must therefore beware that if 'timeout' is zero, or if
- * 'timeout_handler' is not NULL and returns FALSE, then the ONLY thing that
- * can unblock the current process is 'condition' becoming TRUE.
- *
- * Another form of usage is:
- * struct l_wait_info lwi = LWI_TIMEOUT_INTERVAL(timeout, interval,
- *					       timeout_handler);
- * rc = l_wait_event(waitq, condition, &lwi);
- * This is the same as previous case, but condition is checked once every
- * 'interval' jiffies (if non-zero).
- *
- * Subtle synchronization point: this macro does *not* necessary takes
- * wait-queue spin-lock before returning, and, hence, following idiom is safe
- * ONLY when caller provides some external locking:
- *
- *	     Thread1			    Thread2
- *
- *   l_wait_event(&obj->wq, ....);				       (1)
- *
- *				    wake_up(&obj->wq):		 (2)
- *					 spin_lock(&q->lock);	  (2.1)
- *					 __wake_up_common(q, ...);     (2.2)
- *					 spin_unlock(&q->lock, flags); (2.3)
- *
- *   OBD_FREE_PTR(obj);						  (3)
- *
- * As l_wait_event() may "short-cut" execution and return without taking
- * wait-queue spin-lock, some additional synchronization is necessary to
- * guarantee that step (3) can begin only after (2.3) finishes.
- *
- * XXX nikita: some ptlrpc daemon threads have races of that sort.
- *
- */
-static inline int back_to_sleep(void *arg)
-{
-	return 0;
-}
-
-#define LWI_ON_SIGNAL_NOOP ((void (*)(void *))(-1))
-
-struct l_wait_info {
-	long lwi_timeout;
-	long lwi_interval;
-	int	    lwi_allow_intr;
-	int  (*lwi_on_timeout)(void *);
-	void (*lwi_on_signal)(void *);
-	void  *lwi_cb_data;
-};
-
-/* NB: LWI_TIMEOUT ignores signals completely */
-#define LWI_TIMEOUT(time, cb, data)	     \
-((struct l_wait_info) {			 \
-	.lwi_timeout    = time,		 \
-	.lwi_on_timeout = cb,		   \
-	.lwi_cb_data    = data,		 \
-	.lwi_interval   = 0,		    \
-	.lwi_allow_intr = 0		     \
-})
-
-#define LWI_TIMEOUT_INTERVAL(time, interval, cb, data)  \
-((struct l_wait_info) {				 \
-	.lwi_timeout    = time,			 \
-	.lwi_on_timeout = cb,			   \
-	.lwi_cb_data    = data,			 \
-	.lwi_interval   = interval,		     \
-	.lwi_allow_intr = 0			     \
-})
-
-#define LWI_TIMEOUT_INTR(time, time_cb, sig_cb, data)   \
-((struct l_wait_info) {				 \
-	.lwi_timeout    = time,			 \
-	.lwi_on_timeout = time_cb,		      \
-	.lwi_on_signal  = sig_cb,		       \
-	.lwi_cb_data    = data,			 \
-	.lwi_interval   = 0,			    \
-	.lwi_allow_intr = 0			     \
-})
-
-#define LWI_TIMEOUT_INTR_ALL(time, time_cb, sig_cb, data)       \
-((struct l_wait_info) {					 \
-	.lwi_timeout    = time,				 \
-	.lwi_on_timeout = time_cb,			      \
-	.lwi_on_signal  = sig_cb,			       \
-	.lwi_cb_data    = data,				 \
-	.lwi_interval   = 0,				    \
-	.lwi_allow_intr = 1				     \
-})
-
-#define LWI_INTR(cb, data)  LWI_TIMEOUT_INTR(0, NULL, cb, data)
-
-#define LUSTRE_FATAL_SIGS (sigmask(SIGKILL) | sigmask(SIGINT) |		\
-			   sigmask(SIGTERM) | sigmask(SIGQUIT) |	\
-			   sigmask(SIGALRM))
-
-
-/*
- * wait for @condition to become true, but no longer than timeout, specified
- * by @info.
- */
-#define __l_wait_event(wq, condition, info, ret, l_add_wait)		   \
-do {									   \
-	wait_queue_t __wait;						 \
-	long __timeout = info->lwi_timeout;			  \
-	sigset_t   __blocked;					      \
-	int   __allow_intr = info->lwi_allow_intr;			     \
-									       \
-	ret = 0;							       \
-	if (condition)							 \
-		break;							 \
-									       \
-	init_waitqueue_entry(&__wait, current);					    \
-	l_add_wait(&wq, &__wait);					      \
-									       \
-	/* Block all signals (just the non-fatal ones if no timeout). */       \
-	if (info->lwi_on_signal != NULL && (__timeout == 0 || __allow_intr))   \
-		__blocked = cfs_block_sigsinv(LUSTRE_FATAL_SIGS);	      \
-	else								   \
-		__blocked = cfs_block_sigsinv(0);			      \
-									       \
-	for (;;) {							     \
-		if (condition)						 \
-			break;						 \
-									       \
-		set_current_state(TASK_INTERRUPTIBLE);			       \
-									       \
-		if (__timeout == 0) {					  \
-			schedule();					       \
-		} else {						       \
-			long interval = info->lwi_interval?	  \
-					     min_t(long,	     \
-						 info->lwi_interval,__timeout):\
-					     __timeout;			\
-			long remaining = schedule_timeout(interval);\
-			__timeout = cfs_time_sub(__timeout,		    \
-					    cfs_time_sub(interval, remaining));\
-			if (__timeout == 0) {				  \
-				if (info->lwi_on_timeout == NULL ||	    \
-				    info->lwi_on_timeout(info->lwi_cb_data)) { \
-					ret = -ETIMEDOUT;		      \
-					break;				 \
-				}					      \
-				/* Take signals after the timeout expires. */  \
-				if (info->lwi_on_signal != NULL)	       \
-				    (void)cfs_block_sigsinv(LUSTRE_FATAL_SIGS);\
-			}						      \
-		}							      \
-									       \
-		set_current_state(TASK_RUNNING);			       \
-									       \
-		if (condition)						 \
-			break;						 \
-		if (cfs_signal_pending()) {				    \
-			if (info->lwi_on_signal != NULL &&		     \
-			    (__timeout == 0 || __allow_intr)) {		\
-				if (info->lwi_on_signal != LWI_ON_SIGNAL_NOOP) \
-					info->lwi_on_signal(info->lwi_cb_data);\
-				ret = -EINTR;				  \
-				break;					 \
-			}						      \
-			/* We have to do this here because some signals */     \
-			/* are not blockable - ie from strace(1).       */     \
-			/* In these cases we want to schedule_timeout() */     \
-			/* again, because we don't want that to return  */     \
-			/* -EINTR when the RPC actually succeeded.      */     \
-			/* the recalc_sigpending() below will deliver the */     \
-			/* signal properly.			     */     \
-			cfs_clear_sigpending();				\
-		}							      \
-	}								      \
-									       \
-	cfs_restore_sigs(__blocked);					   \
-									       \
-	remove_wait_queue(&wq, &__wait);					   \
-} while (0)
-
-
-
-#define l_wait_event(wq, condition, info)		       \
-({							      \
-	int		 __ret;			      \
-	struct l_wait_info *__info = (info);		    \
-								\
-	__l_wait_event(wq, condition, __info,		   \
-		       __ret, add_wait_queue);		   \
-	__ret;						  \
-})
-
-#define l_wait_event_exclusive(wq, condition, info)	     \
-({							      \
-	int		 __ret;			      \
-	struct l_wait_info *__info = (info);		    \
-								\
-	__l_wait_event(wq, condition, __info,		   \
-		       __ret, add_wait_queue_exclusive);	 \
-	__ret;						  \
-})
-
-#define l_wait_event_exclusive_head(wq, condition, info)	\
-({							      \
-	int		 __ret;			      \
-	struct l_wait_info *__info = (info);		    \
-								\
-	__l_wait_event(wq, condition, __info,		   \
-		       __ret, add_wait_queue_exclusive_head);    \
-	__ret;						  \
-})
-
-#define l_wait_condition(wq, condition)			 \
-({							      \
-	struct l_wait_info lwi = { 0 };			 \
-	l_wait_event(wq, condition, &lwi);		      \
-})
-
-#define l_wait_condition_exclusive(wq, condition)	       \
-({							      \
-	struct l_wait_info lwi = { 0 };			 \
-	l_wait_event_exclusive(wq, condition, &lwi);	    \
-})
-
-#define l_wait_condition_exclusive_head(wq, condition)	  \
-({							      \
-	struct l_wait_info lwi = { 0 };			 \
-	l_wait_event_exclusive_head(wq, condition, &lwi);       \
-})
-
-#define LIBLUSTRE_CLIENT (0)
-
-/** @} lib */
-
-#endif /* _LUSTRE_LIB_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre_lite.h b/drivers/staging/lustre/lustre/include/lustre_lite.h
deleted file mode 100644
index df557c22abbe..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_lite.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LL_H
-#define _LL_H
-
-/** \defgroup lite lite
- *
- * @{
- */
-
-#include "linux/lustre_lite.h"
-
-#include "obd_class.h"
-#include "lustre_net.h"
-#include "lustre_mds.h"
-#include "lustre_ha.h"
-
-/* 4UL * 1024 * 1024 */
-#define LL_MAX_BLKSIZE_BITS     (22)
-#define LL_MAX_BLKSIZE	  (1UL<<LL_MAX_BLKSIZE_BITS)
-
-#include "lustre/lustre_user.h"
-
-
-struct lustre_rw_params {
-	int		lrp_lock_mode;
-	ldlm_policy_data_t lrp_policy;
-	u32		lrp_brw_flags;
-	int		lrp_ast_flags;
-};
-
-/*
- * XXX nikita: this function lives in the header because it is used by both
- * llite kernel module and liblustre library, and there is no (?) better place
- * to put it in.
- */
-static inline void lustre_build_lock_params(int cmd, unsigned long open_flags,
-					    __u64 connect_flags,
-					    loff_t pos, ssize_t len,
-					    struct lustre_rw_params *params)
-{
-	params->lrp_lock_mode = (cmd == OBD_BRW_READ) ? LCK_PR : LCK_PW;
-	params->lrp_brw_flags = 0;
-
-	params->lrp_policy.l_extent.start = pos;
-	params->lrp_policy.l_extent.end = pos + len - 1;
-	/*
-	 * for now O_APPEND always takes local locks.
-	 */
-	if (cmd == OBD_BRW_WRITE && (open_flags & O_APPEND)) {
-		params->lrp_policy.l_extent.start = 0;
-		params->lrp_policy.l_extent.end   = OBD_OBJECT_EOF;
-	} else if (LIBLUSTRE_CLIENT && (connect_flags & OBD_CONNECT_SRVLOCK)) {
-		/*
-		 * liblustre: OST-side locking for all non-O_APPEND
-		 * reads/writes.
-		 */
-		params->lrp_lock_mode = LCK_NL;
-		params->lrp_brw_flags = OBD_BRW_SRVLOCK;
-	} else {
-		/*
-		 * nothing special for the kernel. In the future llite may use
-		 * OST-side locks for small writes into highly contended
-		 * files.
-		 */
-	}
-	params->lrp_ast_flags = (open_flags & O_NONBLOCK) ?
-		LDLM_FL_BLOCK_NOWAIT : 0;
-}
-
-/*
- * This is embedded into liblustre and llite super-blocks to keep track of
- * connect flags (capabilities) supported by all imports given mount is
- * connected to.
- */
-struct lustre_client_ocd {
-	/*
-	 * This is conjunction of connect_flags across all imports (LOVs) this
-	 * mount is connected to. This field is updated by cl_ocd_update()
-	 * under ->lco_lock.
-	 */
-	__u64	      lco_flags;
-	struct mutex	   lco_lock;
-	struct obd_export *lco_md_exp;
-	struct obd_export *lco_dt_exp;
-};
-
-/*
- * Chain of hash overflow pages.
- */
-struct ll_dir_chain {
-	/* XXX something. Later */
-};
-
-static inline void ll_dir_chain_init(struct ll_dir_chain *chain)
-{
-}
-
-static inline void ll_dir_chain_fini(struct ll_dir_chain *chain)
-{
-}
-
-static inline unsigned long hash_x_index(__u64 hash, int hash64)
-{
-	if (BITS_PER_LONG == 32 && hash64)
-		hash >>= 32;
-	/* save hash 0 as index 0 because otherwise we'll save it at
-	 * page index end (~0UL) and it causes truncate_inode_pages_range()
-	 * to loop forever.
-	 */
-	return ~0UL - (hash + !hash);
-}
-
-/** @} lite */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_log.h b/drivers/staging/lustre/lustre/include/lustre_log.h
deleted file mode 100644
index 2187fb615e9a..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_log.h
+++ /dev/null
@@ -1,545 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_log.h
- *
- * Generic infrastructure for managing a collection of logs.
- * These logs are used for:
- *
- * - orphan recovery: OST adds record on create
- * - mtime/size consistency: the OST adds a record on first write
- * - open/unlinked objects: OST adds a record on destroy
- *
- * - mds unlink log: the MDS adds an entry upon delete
- *
- * - raid1 replication log between OST's
- * - MDS replication logs
- */
-
-#ifndef _LUSTRE_LOG_H
-#define _LUSTRE_LOG_H
-
-/** \defgroup log log
- *
- * @{
- */
-
-#include "obd_class.h"
-#include "lustre/lustre_idl.h"
-#include "dt_object.h"
-
-#define LOG_NAME_LIMIT(logname, name)		   \
-	snprintf(logname, sizeof(logname), "LOGS/%s", name)
-#define LLOG_EEMPTY 4711
-
-enum llog_open_param {
-	LLOG_OPEN_EXISTS	= 0x0000,
-	LLOG_OPEN_NEW		= 0x0001,
-};
-
-struct plain_handle_data {
-	struct list_head	  phd_entry;
-	struct llog_handle *phd_cat_handle;
-	struct llog_cookie  phd_cookie; /* cookie of this log in its cat */
-};
-
-struct cat_handle_data {
-	struct list_head	      chd_head;
-	struct llog_handle     *chd_current_log; /* currently open log */
-	struct llog_handle	*chd_next_log; /* llog to be used next */
-};
-
-static inline void logid_to_fid(struct llog_logid *id, struct lu_fid *fid)
-{
-	/* For compatibility purposes we identify pre-OSD (~< 2.3.51 MDS)
-	 * logid's by non-zero ogen (inode generation) and convert them
-	 * into IGIF */
-	if (id->lgl_ogen == 0) {
-		fid->f_seq = id->lgl_oi.oi.oi_seq;
-		fid->f_oid = id->lgl_oi.oi.oi_id;
-		fid->f_ver = 0;
-	} else {
-		lu_igif_build(fid, id->lgl_oi.oi.oi_id, id->lgl_ogen);
-	}
-}
-
-static inline void fid_to_logid(struct lu_fid *fid, struct llog_logid *id)
-{
-	id->lgl_oi.oi.oi_seq = fid->f_seq;
-	id->lgl_oi.oi.oi_id = fid->f_oid;
-	id->lgl_ogen = 0;
-}
-
-static inline void logid_set_id(struct llog_logid *log_id, __u64 id)
-{
-	log_id->lgl_oi.oi.oi_id = id;
-}
-
-static inline __u64 logid_id(struct llog_logid *log_id)
-{
-	return log_id->lgl_oi.oi.oi_id;
-}
-
-struct llog_handle;
-
-/* llog.c  -  general API */
-int llog_init_handle(const struct lu_env *env, struct llog_handle *handle,
-		     int flags, struct obd_uuid *uuid);
-int llog_copy_handler(const struct lu_env *env, struct llog_handle *llh,
-		      struct llog_rec_hdr *rec, void *data);
-int llog_process(const struct lu_env *env, struct llog_handle *loghandle,
-		 llog_cb_t cb, void *data, void *catdata);
-int llog_process_or_fork(const struct lu_env *env,
-			 struct llog_handle *loghandle,
-			 llog_cb_t cb, void *data, void *catdata, bool fork);
-int llog_reverse_process(const struct lu_env *env,
-			 struct llog_handle *loghandle, llog_cb_t cb,
-			 void *data, void *catdata);
-int llog_cancel_rec(const struct lu_env *env, struct llog_handle *loghandle,
-		    int index);
-int llog_open(const struct lu_env *env, struct llog_ctxt *ctxt,
-	      struct llog_handle **lgh, struct llog_logid *logid,
-	      char *name, enum llog_open_param open_param);
-int llog_close(const struct lu_env *env, struct llog_handle *cathandle);
-int llog_is_empty(const struct lu_env *env, struct llog_ctxt *ctxt,
-		  char *name);
-int llog_backup(const struct lu_env *env, struct obd_device *obd,
-		struct llog_ctxt *ctxt, struct llog_ctxt *bak_ctxt,
-		char *name, char *backup);
-
-/* llog_process flags */
-#define LLOG_FLAG_NODEAMON 0x0001
-
-/* llog_cat.c - catalog api */
-struct llog_process_data {
-	/**
-	 * Any useful data needed while processing catalog. This is
-	 * passed later to process callback.
-	 */
-	void		*lpd_data;
-	/**
-	 * Catalog process callback function, called for each record
-	 * in catalog.
-	 */
-	llog_cb_t	    lpd_cb;
-	/**
-	 * Start processing the catalog from startcat/startidx
-	 */
-	int		  lpd_startcat;
-	int		  lpd_startidx;
-};
-
-struct llog_process_cat_data {
-	/**
-	 * Temporary stored first_idx while scanning log.
-	 */
-	int		  lpcd_first_idx;
-	/**
-	 * Temporary stored last_idx while scanning log.
-	 */
-	int		  lpcd_last_idx;
-};
-
-int llog_cat_close(const struct lu_env *env, struct llog_handle *cathandle);
-int llog_cat_add_rec(const struct lu_env *env, struct llog_handle *cathandle,
-		     struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
-		     void *buf, struct thandle *th);
-int llog_cat_declare_add_rec(const struct lu_env *env,
-			     struct llog_handle *cathandle,
-			     struct llog_rec_hdr *rec, struct thandle *th);
-int llog_cat_add(const struct lu_env *env, struct llog_handle *cathandle,
-		 struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
-		 void *buf);
-int llog_cat_cancel_records(const struct lu_env *env,
-			    struct llog_handle *cathandle, int count,
-			    struct llog_cookie *cookies);
-int llog_cat_process_or_fork(const struct lu_env *env,
-			     struct llog_handle *cat_llh, llog_cb_t cb,
-			     void *data, int startcat, int startidx, bool fork);
-int llog_cat_process(const struct lu_env *env, struct llog_handle *cat_llh,
-		     llog_cb_t cb, void *data, int startcat, int startidx);
-int llog_cat_reverse_process(const struct lu_env *env,
-			     struct llog_handle *cat_llh, llog_cb_t cb,
-			     void *data);
-int llog_cat_init_and_process(const struct lu_env *env,
-			      struct llog_handle *llh);
-
-/* llog_obd.c */
-int llog_setup(const struct lu_env *env, struct obd_device *obd,
-	       struct obd_llog_group *olg, int index,
-	       struct obd_device *disk_obd, struct llog_operations *op);
-int __llog_ctxt_put(const struct lu_env *env, struct llog_ctxt *ctxt);
-int llog_cleanup(const struct lu_env *env, struct llog_ctxt *);
-int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp, int flags);
-int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt,
-		struct llog_cookie *cookies, int flags);
-
-/* llog_net.c */
-int llog_initiator_connect(struct llog_ctxt *ctxt);
-
-struct llog_operations {
-	int (*lop_destroy)(const struct lu_env *env,
-			   struct llog_handle *handle);
-	int (*lop_next_block)(const struct lu_env *env, struct llog_handle *h,
-			      int *curr_idx, int next_idx, __u64 *offset,
-			      void *buf, int len);
-	int (*lop_prev_block)(const struct lu_env *env, struct llog_handle *h,
-			      int prev_idx, void *buf, int len);
-	int (*lop_read_header)(const struct lu_env *env,
-			       struct llog_handle *handle);
-	int (*lop_setup)(const struct lu_env *env, struct obd_device *obd,
-			 struct obd_llog_group *olg, int ctxt_idx,
-			 struct obd_device *disk_obd);
-	int (*lop_sync)(struct llog_ctxt *ctxt, struct obd_export *exp,
-			int flags);
-	int (*lop_cleanup)(const struct lu_env *env, struct llog_ctxt *ctxt);
-	int (*lop_cancel)(const struct lu_env *env, struct llog_ctxt *ctxt,
-			  struct llog_cookie *cookies, int flags);
-	int (*lop_connect)(struct llog_ctxt *ctxt, struct llog_logid *logid,
-			   struct llog_gen *gen, struct obd_uuid *uuid);
-	/**
-	 * Any llog file must be opened first using llog_open().  Llog can be
-	 * opened by name, logid or without both, in last case the new logid
-	 * will be generated.
-	 */
-	int (*lop_open)(const struct lu_env *env, struct llog_handle *lgh,
-			struct llog_logid *logid, char *name,
-			enum llog_open_param);
-	/**
-	 * Opened llog may not exist and this must be checked where needed using
-	 * the llog_exist() call.
-	 */
-	int (*lop_exist)(struct llog_handle *lgh);
-	/**
-	 * Close llog file and calls llog_free_handle() implicitly.
-	 * Any opened llog must be closed by llog_close() call.
-	 */
-	int (*lop_close)(const struct lu_env *env, struct llog_handle *handle);
-	/**
-	 * Create new llog file. The llog must be opened.
-	 * Must be used only for local llog operations.
-	 */
-	int (*lop_declare_create)(const struct lu_env *env,
-				  struct llog_handle *handle,
-				  struct thandle *th);
-	int (*lop_create)(const struct lu_env *env, struct llog_handle *handle,
-			  struct thandle *th);
-	/**
-	 * write new record in llog. It appends records usually but can edit
-	 * existing records too.
-	 */
-	int (*lop_declare_write_rec)(const struct lu_env *env,
-				     struct llog_handle *lgh,
-				     struct llog_rec_hdr *rec,
-				     int idx, struct thandle *th);
-	int (*lop_write_rec)(const struct lu_env *env,
-			     struct llog_handle *loghandle,
-			     struct llog_rec_hdr *rec,
-			     struct llog_cookie *cookie, int cookiecount,
-			     void *buf, int idx, struct thandle *th);
-	/**
-	 * Add new record in llog catalog. Does the same as llog_write_rec()
-	 * but using llog catalog.
-	 */
-	int (*lop_declare_add)(const struct lu_env *env,
-			       struct llog_handle *lgh,
-			       struct llog_rec_hdr *rec, struct thandle *th);
-	int (*lop_add)(const struct lu_env *env, struct llog_handle *lgh,
-		       struct llog_rec_hdr *rec, struct llog_cookie *cookie,
-		       void *buf, struct thandle *th);
-};
-
-/* In-memory descriptor for a log object or log catalog */
-struct llog_handle {
-	struct rw_semaphore	 lgh_lock;
-	spinlock_t		 lgh_hdr_lock; /* protect lgh_hdr data */
-	struct llog_logid	 lgh_id; /* id of this log */
-	struct llog_log_hdr	*lgh_hdr;
-	struct file		*lgh_file;
-	struct dt_object	*lgh_obj;
-	int			 lgh_last_idx;
-	int			 lgh_cur_idx; /* used during llog_process */
-	__u64			 lgh_cur_offset; /* used during llog_process */
-	struct llog_ctxt	*lgh_ctxt;
-	union {
-		struct plain_handle_data	 phd;
-		struct cat_handle_data		 chd;
-	} u;
-	char			*lgh_name;
-	void			*private_data;
-	struct llog_operations	*lgh_logops;
-	atomic_t		 lgh_refcount;
-};
-
-#define LLOG_CTXT_FLAG_UNINITIALIZED     0x00000001
-#define LLOG_CTXT_FLAG_STOP		 0x00000002
-
-struct llog_ctxt {
-	int		      loc_idx; /* my index the obd array of ctxt's */
-	struct obd_device       *loc_obd; /* points back to the containing obd*/
-	struct obd_llog_group   *loc_olg; /* group containing that ctxt */
-	struct obd_export       *loc_exp; /* parent "disk" export (e.g. MDS) */
-	struct obd_import       *loc_imp; /* to use in RPC's: can be backward
-					     pointing import */
-	struct llog_operations  *loc_logops;
-	struct llog_handle      *loc_handle;
-	struct mutex		 loc_mutex; /* protect loc_imp */
-	atomic_t	     loc_refcount;
-	long		     loc_flags; /* flags, see above defines */
-	struct dt_object	*loc_dir;
-};
-
-#define LLOG_PROC_BREAK 0x0001
-#define LLOG_DEL_RECORD 0x0002
-
-static inline int llog_obd2ops(struct llog_ctxt *ctxt,
-			       struct llog_operations **lop)
-{
-	if (ctxt == NULL)
-		return -ENOTCONN;
-
-	*lop = ctxt->loc_logops;
-	if (*lop == NULL)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static inline int llog_handle2ops(struct llog_handle *loghandle,
-				  struct llog_operations **lop)
-{
-	if (loghandle == NULL || loghandle->lgh_logops == NULL)
-		return -EINVAL;
-
-	*lop = loghandle->lgh_logops;
-	return 0;
-}
-
-static inline int llog_data_len(int len)
-{
-	return cfs_size_round(len);
-}
-
-static inline int llog_get_size(struct llog_handle *loghandle)
-{
-	if (loghandle && loghandle->lgh_hdr)
-		return loghandle->lgh_hdr->llh_count;
-	return 0;
-}
-
-static inline struct llog_ctxt *llog_ctxt_get(struct llog_ctxt *ctxt)
-{
-	atomic_inc(&ctxt->loc_refcount);
-	CDEBUG(D_INFO, "GETting ctxt %p : new refcount %d\n", ctxt,
-	       atomic_read(&ctxt->loc_refcount));
-	return ctxt;
-}
-
-static inline void llog_ctxt_put(struct llog_ctxt *ctxt)
-{
-	if (ctxt == NULL)
-		return;
-	LASSERT_ATOMIC_GT_LT(&ctxt->loc_refcount, 0, LI_POISON);
-	CDEBUG(D_INFO, "PUTting ctxt %p : new refcount %d\n", ctxt,
-	       atomic_read(&ctxt->loc_refcount) - 1);
-	__llog_ctxt_put(NULL, ctxt);
-}
-
-static inline void llog_group_init(struct obd_llog_group *olg, int group)
-{
-	init_waitqueue_head(&olg->olg_waitq);
-	spin_lock_init(&olg->olg_lock);
-	mutex_init(&olg->olg_cat_processing);
-	olg->olg_seq = group;
-}
-
-static inline int llog_group_set_ctxt(struct obd_llog_group *olg,
-				      struct llog_ctxt *ctxt, int index)
-{
-	LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
-
-	spin_lock(&olg->olg_lock);
-	if (olg->olg_ctxts[index] != NULL) {
-		spin_unlock(&olg->olg_lock);
-		return -EEXIST;
-	}
-	olg->olg_ctxts[index] = ctxt;
-	spin_unlock(&olg->olg_lock);
-	return 0;
-}
-
-static inline struct llog_ctxt *llog_group_get_ctxt(struct obd_llog_group *olg,
-						    int index)
-{
-	struct llog_ctxt *ctxt;
-
-	LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
-
-	spin_lock(&olg->olg_lock);
-	if (olg->olg_ctxts[index] == NULL)
-		ctxt = NULL;
-	else
-		ctxt = llog_ctxt_get(olg->olg_ctxts[index]);
-	spin_unlock(&olg->olg_lock);
-	return ctxt;
-}
-
-static inline void llog_group_clear_ctxt(struct obd_llog_group *olg, int index)
-{
-	LASSERT(index >= 0 && index < LLOG_MAX_CTXTS);
-	spin_lock(&olg->olg_lock);
-	olg->olg_ctxts[index] = NULL;
-	spin_unlock(&olg->olg_lock);
-}
-
-static inline struct llog_ctxt *llog_get_context(struct obd_device *obd,
-						 int index)
-{
-	return llog_group_get_ctxt(&obd->obd_olg, index);
-}
-
-static inline int llog_group_ctxt_null(struct obd_llog_group *olg, int index)
-{
-	return (olg->olg_ctxts[index] == NULL);
-}
-
-static inline int llog_ctxt_null(struct obd_device *obd, int index)
-{
-	return llog_group_ctxt_null(&obd->obd_olg, index);
-}
-
-static inline int llog_destroy(const struct lu_env *env,
-			       struct llog_handle *handle)
-{
-	struct llog_operations *lop;
-	int rc;
-
-	rc = llog_handle2ops(handle, &lop);
-	if (rc)
-		return rc;
-	if (lop->lop_destroy == NULL)
-		return -EOPNOTSUPP;
-
-	rc = lop->lop_destroy(env, handle);
-	return rc;
-}
-
-static inline int llog_next_block(const struct lu_env *env,
-				  struct llog_handle *loghandle, int *cur_idx,
-				  int next_idx, __u64 *cur_offset, void *buf,
-				  int len)
-{
-	struct llog_operations *lop;
-	int rc;
-
-	rc = llog_handle2ops(loghandle, &lop);
-	if (rc)
-		return rc;
-	if (lop->lop_next_block == NULL)
-		return -EOPNOTSUPP;
-
-	rc = lop->lop_next_block(env, loghandle, cur_idx, next_idx,
-				 cur_offset, buf, len);
-	return rc;
-}
-
-static inline int llog_prev_block(const struct lu_env *env,
-				  struct llog_handle *loghandle,
-				  int prev_idx, void *buf, int len)
-{
-	struct llog_operations *lop;
-	int rc;
-
-	rc = llog_handle2ops(loghandle, &lop);
-	if (rc)
-		return rc;
-	if (lop->lop_prev_block == NULL)
-		return -EOPNOTSUPP;
-
-	rc = lop->lop_prev_block(env, loghandle, prev_idx, buf, len);
-	return rc;
-}
-
-static inline int llog_connect(struct llog_ctxt *ctxt,
-			       struct llog_logid *logid, struct llog_gen *gen,
-			       struct obd_uuid *uuid)
-{
-	struct llog_operations	*lop;
-	int			 rc;
-
-	rc = llog_obd2ops(ctxt, &lop);
-	if (rc)
-		return rc;
-	if (lop->lop_connect == NULL)
-		return -EOPNOTSUPP;
-
-	rc = lop->lop_connect(ctxt, logid, gen, uuid);
-	return rc;
-}
-
-/* llog.c */
-int llog_exist(struct llog_handle *loghandle);
-int llog_declare_create(const struct lu_env *env,
-			struct llog_handle *loghandle, struct thandle *th);
-int llog_create(const struct lu_env *env, struct llog_handle *handle,
-		struct thandle *th);
-int llog_declare_write_rec(const struct lu_env *env,
-			   struct llog_handle *handle,
-			   struct llog_rec_hdr *rec, int idx,
-			   struct thandle *th);
-int llog_write_rec(const struct lu_env *env, struct llog_handle *handle,
-		   struct llog_rec_hdr *rec, struct llog_cookie *logcookies,
-		   int numcookies, void *buf, int idx, struct thandle *th);
-int llog_add(const struct lu_env *env, struct llog_handle *lgh,
-	     struct llog_rec_hdr *rec, struct llog_cookie *logcookies,
-	     void *buf, struct thandle *th);
-int llog_declare_add(const struct lu_env *env, struct llog_handle *lgh,
-		     struct llog_rec_hdr *rec, struct thandle *th);
-int lustre_process_log(struct super_block *sb, char *logname,
-		       struct config_llog_instance *cfg);
-int lustre_end_log(struct super_block *sb, char *logname,
-		   struct config_llog_instance *cfg);
-int llog_open_create(const struct lu_env *env, struct llog_ctxt *ctxt,
-		     struct llog_handle **res, struct llog_logid *logid,
-		     char *name);
-int llog_erase(const struct lu_env *env, struct llog_ctxt *ctxt,
-	       struct llog_logid *logid, char *name);
-int llog_write(const struct lu_env *env, struct llog_handle *loghandle,
-	       struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
-	       int cookiecount, void *buf, int idx);
-
-/** @} log */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_mdc.h b/drivers/staging/lustre/lustre/include/lustre_mdc.h
deleted file mode 100644
index b1b05c8a371a..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_mdc.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_mdc.h
- *
- * MDS data structures.
- * See also lustre_idl.h for wire formats of requests.
- */
-
-#ifndef _LUSTRE_MDC_H
-#define _LUSTRE_MDC_H
-
-/** \defgroup mdc mdc
- *
- * @{
- */
-
-#include <linux/fs.h>
-#include <linux/dcache.h>
-#include "lustre_intent.h"
-#include "lustre_handles.h"
-#include "../../include/linux/libcfs/libcfs.h"
-#include "obd_class.h"
-#include "lustre/lustre_idl.h"
-#include "lustre_lib.h"
-#include "lustre_dlm.h"
-#include "lustre_export.h"
-
-struct ptlrpc_client;
-struct obd_export;
-struct ptlrpc_request;
-struct obd_device;
-
-struct mdc_rpc_lock {
-	struct mutex		rpcl_mutex;
-	struct lookup_intent	*rpcl_it;
-	int			rpcl_fakes;
-};
-
-#define MDC_FAKE_RPCL_IT ((void *)0x2c0012bfUL)
-
-static inline void mdc_init_rpc_lock(struct mdc_rpc_lock *lck)
-{
-	mutex_init(&lck->rpcl_mutex);
-	lck->rpcl_it = NULL;
-}
-
-static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
-				    struct lookup_intent *it)
-{
-	if (it != NULL && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
-			   it->it_op == IT_LAYOUT))
-		return;
-
-	/* This would normally block until the existing request finishes.
-	 * If fail_loc is set it will block until the regular request is
-	 * done, then set rpcl_it to MDC_FAKE_RPCL_IT.  Once that is set
-	 * it will only be cleared when all fake requests are finished.
-	 * Only when all fake requests are finished can normal requests
-	 * be sent, to ensure they are recoverable again. */
- again:
-	mutex_lock(&lck->rpcl_mutex);
-
-	if (CFS_FAIL_CHECK_QUIET(OBD_FAIL_MDC_RPCS_SEM)) {
-		lck->rpcl_it = MDC_FAKE_RPCL_IT;
-		lck->rpcl_fakes++;
-		mutex_unlock(&lck->rpcl_mutex);
-		return;
-	}
-
-	/* This will only happen when the CFS_FAIL_CHECK() was
-	 * just turned off but there are still requests in progress.
-	 * Wait until they finish.  It doesn't need to be efficient
-	 * in this extremely rare case, just have low overhead in
-	 * the common case when it isn't true. */
-	while (unlikely(lck->rpcl_it == MDC_FAKE_RPCL_IT)) {
-		mutex_unlock(&lck->rpcl_mutex);
-		schedule_timeout(cfs_time_seconds(1) / 4);
-		goto again;
-	}
-
-	LASSERT(lck->rpcl_it == NULL);
-	lck->rpcl_it = it;
-}
-
-static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck,
-				    struct lookup_intent *it)
-{
-	if (it != NULL && (it->it_op == IT_GETATTR || it->it_op == IT_LOOKUP ||
-			   it->it_op == IT_LAYOUT))
-		return;
-
-	if (lck->rpcl_it == MDC_FAKE_RPCL_IT) { /* OBD_FAIL_MDC_RPCS_SEM */
-		mutex_lock(&lck->rpcl_mutex);
-
-		LASSERTF(lck->rpcl_fakes > 0, "%d\n", lck->rpcl_fakes);
-		lck->rpcl_fakes--;
-
-		if (lck->rpcl_fakes == 0)
-			lck->rpcl_it = NULL;
-
-	} else {
-		LASSERTF(it == lck->rpcl_it, "%p != %p\n", it, lck->rpcl_it);
-		lck->rpcl_it = NULL;
-	}
-
-	mutex_unlock(&lck->rpcl_mutex);
-}
-
-/* Update the maximum observed easize and cookiesize.  The default easize
- * and cookiesize is initialized to the minimum value but allowed to grow
- * up to a single page in size if required to handle the common case.
- */
-static inline void mdc_update_max_ea_from_body(struct obd_export *exp,
-					       struct mdt_body *body)
-{
-	if (body->valid & OBD_MD_FLMODEASIZE) {
-		struct client_obd *cli = &exp->exp_obd->u.cli;
-
-		if (cli->cl_max_mds_easize < body->max_mdsize) {
-			cli->cl_max_mds_easize = body->max_mdsize;
-			cli->cl_default_mds_easize =
-			    min_t(__u32, body->max_mdsize, PAGE_CACHE_SIZE);
-		}
-		if (cli->cl_max_mds_cookiesize < body->max_cookiesize) {
-			cli->cl_max_mds_cookiesize = body->max_cookiesize;
-			cli->cl_default_mds_cookiesize =
-			    min_t(__u32, body->max_cookiesize, PAGE_CACHE_SIZE);
-		}
-	}
-}
-
-
-struct mdc_cache_waiter {
-	struct list_head	      mcw_entry;
-	wait_queue_head_t	     mcw_waitq;
-};
-
-/* mdc/mdc_locks.c */
-int it_disposition(struct lookup_intent *it, int flag);
-void it_clear_disposition(struct lookup_intent *it, int flag);
-void it_set_disposition(struct lookup_intent *it, int flag);
-int it_open_error(int phase, struct lookup_intent *it);
-
-static inline bool cl_is_lov_delay_create(unsigned int flags)
-{
-	return (flags & O_LOV_DELAY_CREATE) == O_LOV_DELAY_CREATE;
-}
-
-static inline void cl_lov_delay_create_clear(unsigned int *flags)
-{
-	if ((*flags & O_LOV_DELAY_CREATE) == O_LOV_DELAY_CREATE)
-		*flags &= ~O_LOV_DELAY_CREATE;
-}
-
-/** @} mdc */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_mds.h b/drivers/staging/lustre/lustre/include/lustre_mds.h
deleted file mode 100644
index f0cce41c55c0..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_mds.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_mds.h
- *
- * MDS data structures.
- * See also lustre_idl.h for wire formats of requests.
- */
-
-#ifndef _LUSTRE_MDS_H
-#define _LUSTRE_MDS_H
-
-/** \defgroup mds mds
- *
- * @{
- */
-
-#include "lustre_handles.h"
-#include "../../include/linux/libcfs/libcfs.h"
-#include "lustre/lustre_idl.h"
-#include "lustre_lib.h"
-#include "lustre_dlm.h"
-#include "lustre_export.h"
-
-struct mds_group_info {
-	struct obd_uuid *uuid;
-	int group;
-};
-
-struct mds_capa_info {
-	struct obd_uuid	*uuid;
-	struct lustre_capa_key *capa;
-};
-
-#define MDD_OBD_NAME     "mdd_obd"
-#define MDD_OBD_UUID     "mdd_obd_uuid"
-
-static inline int md_should_create(__u64 flags)
-{
-       return !(flags & MDS_OPEN_DELAY_CREATE ||
-	       !(flags & FMODE_WRITE));
-}
-
-/* these are local flags, used only on the client, private */
-#define M_CHECK_STALE	   0200000000
-
-/** @} mds */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
deleted file mode 100644
index 48ad60b22122..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ /dev/null
@@ -1,2966 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-/** \defgroup PtlRPC Portal RPC and networking module.
- *
- * PortalRPC is the layer used by rest of lustre code to achieve network
- * communications: establish connections with corresponding export and import
- * states, listen for a service, send and receive RPCs.
- * PortalRPC also includes base recovery framework: packet resending and
- * replaying, reconnections, pinger.
- *
- * PortalRPC utilizes LNet as its transport layer.
- *
- * @{
- */
-
-
-#ifndef _LUSTRE_NET_H
-#define _LUSTRE_NET_H
-
-/** \defgroup net net
- *
- * @{
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/nidstr.h"
-#include "../../include/linux/lnet/api.h"
-#include "lustre/lustre_idl.h"
-#include "lustre_ha.h"
-#include "lustre_sec.h"
-#include "lustre_import.h"
-#include "lprocfs_status.h"
-#include "lu_object.h"
-#include "lustre_req_layout.h"
-
-#include "obd_support.h"
-#include "lustre_ver.h"
-
-/* MD flags we _always_ use */
-#define PTLRPC_MD_OPTIONS  0
-
-/**
- * Max # of bulk operations in one request.
- * In order for the client and server to properly negotiate the maximum
- * possible transfer size, PTLRPC_BULK_OPS_COUNT must be a power-of-two
- * value.  The client is free to limit the actual RPC size for any bulk
- * transfer via cl_max_pages_per_rpc to some non-power-of-two value. */
-#define PTLRPC_BULK_OPS_BITS	2
-#define PTLRPC_BULK_OPS_COUNT	(1U << PTLRPC_BULK_OPS_BITS)
-/**
- * PTLRPC_BULK_OPS_MASK is for the convenience of the client only, and
- * should not be used on the server at all.  Otherwise, it imposes a
- * protocol limitation on the maximum RPC size that can be used by any
- * RPC sent to that server in the future.  Instead, the server should
- * use the negotiated per-client ocd_brw_size to determine the bulk
- * RPC count. */
-#define PTLRPC_BULK_OPS_MASK	(~((__u64)PTLRPC_BULK_OPS_COUNT - 1))
-
-/**
- * Define maxima for bulk I/O.
- *
- * A single PTLRPC BRW request is sent via up to PTLRPC_BULK_OPS_COUNT
- * of LNET_MTU sized RDMA transfers.  Clients and servers negotiate the
- * currently supported maximum between peers at connect via ocd_brw_size.
- */
-#define PTLRPC_MAX_BRW_BITS	(LNET_MTU_BITS + PTLRPC_BULK_OPS_BITS)
-#define PTLRPC_MAX_BRW_SIZE	(1 << PTLRPC_MAX_BRW_BITS)
-#define PTLRPC_MAX_BRW_PAGES	(PTLRPC_MAX_BRW_SIZE >> PAGE_CACHE_SHIFT)
-
-#define ONE_MB_BRW_SIZE		(1 << LNET_MTU_BITS)
-#define MD_MAX_BRW_SIZE		(1 << LNET_MTU_BITS)
-#define MD_MAX_BRW_PAGES	(MD_MAX_BRW_SIZE >> PAGE_CACHE_SHIFT)
-#define DT_MAX_BRW_SIZE		PTLRPC_MAX_BRW_SIZE
-#define DT_MAX_BRW_PAGES	(DT_MAX_BRW_SIZE >> PAGE_CACHE_SHIFT)
-#define OFD_MAX_BRW_SIZE	(1 << LNET_MTU_BITS)
-
-/* When PAGE_SIZE is a constant, we can check our arithmetic here with cpp! */
-# if ((PTLRPC_MAX_BRW_PAGES & (PTLRPC_MAX_BRW_PAGES - 1)) != 0)
-#  error "PTLRPC_MAX_BRW_PAGES isn't a power of two"
-# endif
-# if (PTLRPC_MAX_BRW_SIZE != (PTLRPC_MAX_BRW_PAGES * PAGE_CACHE_SIZE))
-#  error "PTLRPC_MAX_BRW_SIZE isn't PTLRPC_MAX_BRW_PAGES * PAGE_CACHE_SIZE"
-# endif
-# if (PTLRPC_MAX_BRW_SIZE > LNET_MTU * PTLRPC_BULK_OPS_COUNT)
-#  error "PTLRPC_MAX_BRW_SIZE too big"
-# endif
-# if (PTLRPC_MAX_BRW_PAGES > LNET_MAX_IOV * PTLRPC_BULK_OPS_COUNT)
-#  error "PTLRPC_MAX_BRW_PAGES too big"
-# endif
-
-#define PTLRPC_NTHRS_INIT	2
-
-/**
- * Buffer Constants
- *
- * Constants determine how memory is used to buffer incoming service requests.
- *
- * ?_NBUFS	      # buffers to allocate when growing the pool
- * ?_BUFSIZE	    # bytes in a single request buffer
- * ?_MAXREQSIZE	 # maximum request service will receive
- *
- * When fewer than ?_NBUFS/2 buffers are posted for receive, another chunk
- * of ?_NBUFS is added to the pool.
- *
- * Messages larger than ?_MAXREQSIZE are dropped.  Request buffers are
- * considered full when less than ?_MAXREQSIZE is left in them.
- */
-/**
- * Thread Constants
- *
- * Constants determine how threads are created for ptlrpc service.
- *
- * ?_NTHRS_INIT		# threads to create for each service partition on
- *			  initializing. If it's non-affinity service and
- *			  there is only one partition, it's the overall #
- *			  threads for the service while initializing.
- * ?_NTHRS_BASE		# threads should be created at least for each
- *			  ptlrpc partition to keep the service healthy.
- *			  It's the low-water mark of threads upper-limit
- *			  for each partition.
- * ?_THR_FACTOR	 # threads can be added on threads upper-limit for
- *			  each CPU core. This factor is only for reference,
- *			  we might decrease value of factor if number of cores
- *			  per CPT is above a limit.
- * ?_NTHRS_MAX		# overall threads can be created for a service,
- *			  it's a soft limit because if service is running
- *			  on machine with hundreds of cores and tens of
- *			  CPU partitions, we need to guarantee each partition
- *			  has ?_NTHRS_BASE threads, which means total threads
- *			  will be ?_NTHRS_BASE * number_of_cpts which can
- *			  exceed ?_NTHRS_MAX.
- *
- * Examples
- *
- * #define MDS_NTHRS_INIT	2
- * #define MDS_NTHRS_BASE	64
- * #define MDS_NTHRS_FACTOR	8
- * #define MDS_NTHRS_MAX	1024
- *
- * Example 1):
- * ---------------------------------------------------------------------
- * Server(A) has 16 cores, user configured it to 4 partitions so each
- * partition has 4 cores, then actual number of service threads on each
- * partition is:
- *     MDS_NTHRS_BASE(64) + cores(4) * MDS_NTHRS_FACTOR(8) = 96
- *
- * Total number of threads for the service is:
- *     96 * partitions(4) = 384
- *
- * Example 2):
- * ---------------------------------------------------------------------
- * Server(B) has 32 cores, user configured it to 4 partitions so each
- * partition has 8 cores, then actual number of service threads on each
- * partition is:
- *     MDS_NTHRS_BASE(64) + cores(8) * MDS_NTHRS_FACTOR(8) = 128
- *
- * Total number of threads for the service is:
- *     128 * partitions(4) = 512
- *
- * Example 3):
- * ---------------------------------------------------------------------
- * Server(B) has 96 cores, user configured it to 8 partitions so each
- * partition has 12 cores, then actual number of service threads on each
- * partition is:
- *     MDS_NTHRS_BASE(64) + cores(12) * MDS_NTHRS_FACTOR(8) = 160
- *
- * Total number of threads for the service is:
- *     160 * partitions(8) = 1280
- *
- * However, it's above the soft limit MDS_NTHRS_MAX, so we choose this number
- * as upper limit of threads number for each partition:
- *     MDS_NTHRS_MAX(1024) / partitions(8) = 128
- *
- * Example 4):
- * ---------------------------------------------------------------------
- * Server(C) have a thousand of cores and user configured it to 32 partitions
- *     MDS_NTHRS_BASE(64) * 32 = 2048
- *
- * which is already above soft limit MDS_NTHRS_MAX(1024), but we still need
- * to guarantee that each partition has at least MDS_NTHRS_BASE(64) threads
- * to keep service healthy, so total number of threads will just be 2048.
- *
- * NB: we don't suggest to choose server with that many cores because backend
- *     filesystem itself, buffer cache, or underlying network stack might
- *     have some SMP scalability issues at that large scale.
- *
- *     If user already has a fat machine with hundreds or thousands of cores,
- *     there are two choices for configuration:
- *     a) create CPU table from subset of all CPUs and run Lustre on
- *	top of this subset
- *     b) bind service threads on a few partitions, see modparameters of
- *	MDS and OSS for details
-*
- * NB: these calculations (and examples below) are simplified to help
- *     understanding, the real implementation is a little more complex,
- *     please see ptlrpc_server_nthreads_check() for details.
- *
- */
-
- /*
-  * LDLM threads constants:
-  *
-  * Given 8 as factor and 24 as base threads number
-  *
-  * example 1)
-  * On 4-core machine we will have 24 + 8 * 4 = 56 threads.
-  *
-  * example 2)
-  * On 8-core machine with 2 partitions we will have 24 + 4 * 8 = 56
-  * threads for each partition and total threads number will be 112.
-  *
-  * example 3)
-  * On 64-core machine with 8 partitions we will need LDLM_NTHRS_BASE(24)
-  * threads for each partition to keep service healthy, so total threads
-  * number should be 24 * 8 = 192.
-  *
-  * So with these constants, threads number will be at the similar level
-  * of old versions, unless target machine has over a hundred cores
-  */
-#define LDLM_THR_FACTOR		8
-#define LDLM_NTHRS_INIT		PTLRPC_NTHRS_INIT
-#define LDLM_NTHRS_BASE		24
-#define LDLM_NTHRS_MAX		(num_online_cpus() == 1 ? 64 : 128)
-
-#define LDLM_BL_THREADS   LDLM_NTHRS_AUTO_INIT
-#define LDLM_CLIENT_NBUFS 1
-#define LDLM_SERVER_NBUFS 64
-#define LDLM_BUFSIZE      (8 * 1024)
-#define LDLM_MAXREQSIZE   (5 * 1024)
-#define LDLM_MAXREPSIZE   (1024)
-
-#define MDS_MAXREQSIZE		(5 * 1024)	/* >= 4736 */
-
-#define OST_MAXREQSIZE		(5 * 1024)
-
-/* Macro to hide a typecast. */
-#define ptlrpc_req_async_args(req) ((void *)&req->rq_async_args)
-
-/**
- * Structure to single define portal connection.
- */
-struct ptlrpc_connection {
-	/** linkage for connections hash table */
-	struct hlist_node	c_hash;
-	/** Our own lnet nid for this connection */
-	lnet_nid_t	      c_self;
-	/** Remote side nid for this connection */
-	lnet_process_id_t       c_peer;
-	/** UUID of the other side */
-	struct obd_uuid	 c_remote_uuid;
-	/** reference counter for this connection */
-	atomic_t	    c_refcount;
-};
-
-/** Client definition for PortalRPC */
-struct ptlrpc_client {
-	/** What lnet portal does this client send messages to by default */
-	__u32		   cli_request_portal;
-	/** What portal do we expect replies on */
-	__u32		   cli_reply_portal;
-	/** Name of the client */
-	char		   *cli_name;
-};
-
-/** state flags of requests */
-/* XXX only ones left are those used by the bulk descs as well! */
-#define PTL_RPC_FL_INTR      (1 << 0)  /* reply wait was interrupted by user */
-#define PTL_RPC_FL_TIMEOUT   (1 << 7)  /* request timed out waiting for reply */
-
-#define REQ_MAX_ACK_LOCKS 8
-
-union ptlrpc_async_args {
-	/**
-	 * Scratchpad for passing args to completion interpreter. Users
-	 * cast to the struct of their choosing, and CLASSERT that this is
-	 * big enough.  For _tons_ of context, OBD_ALLOC a struct and store
-	 * a pointer to it here.  The pointer_arg ensures this struct is at
-	 * least big enough for that.
-	 */
-	void      *pointer_arg[11];
-	__u64      space[7];
-};
-
-struct ptlrpc_request_set;
-typedef int (*set_interpreter_func)(struct ptlrpc_request_set *, void *, int);
-typedef int (*set_producer_func)(struct ptlrpc_request_set *, void *);
-
-/**
- * Definition of request set structure.
- * Request set is a list of requests (not necessary to the same target) that
- * once populated with RPCs could be sent in parallel.
- * There are two kinds of request sets. General purpose and with dedicated
- * serving thread. Example of the latter is ptlrpcd set.
- * For general purpose sets once request set started sending it is impossible
- * to add new requests to such set.
- * Provides a way to call "completion callbacks" when all requests in the set
- * returned.
- */
-struct ptlrpc_request_set {
-	atomic_t	  set_refcount;
-	/** number of in queue requests */
-	atomic_t	  set_new_count;
-	/** number of uncompleted requests */
-	atomic_t	  set_remaining;
-	/** wait queue to wait on for request events */
-	wait_queue_head_t	   set_waitq;
-	wait_queue_head_t	  *set_wakeup_ptr;
-	/** List of requests in the set */
-	struct list_head	    set_requests;
-	/**
-	 * List of completion callbacks to be called when the set is completed
-	 * This is only used if \a set_interpret is NULL.
-	 * Links struct ptlrpc_set_cbdata.
-	 */
-	struct list_head	    set_cblist;
-	/** Completion callback, if only one. */
-	set_interpreter_func  set_interpret;
-	/** opaq argument passed to completion \a set_interpret callback. */
-	void		 *set_arg;
-	/**
-	 * Lock for \a set_new_requests manipulations
-	 * locked so that any old caller can communicate requests to
-	 * the set holder who can then fold them into the lock-free set
-	 */
-	spinlock_t		set_new_req_lock;
-	/** List of new yet unsent requests. Only used with ptlrpcd now. */
-	struct list_head	    set_new_requests;
-
-	/** rq_status of requests that have been freed already */
-	int		   set_rc;
-	/** Additional fields used by the flow control extension */
-	/** Maximum number of RPCs in flight */
-	int		   set_max_inflight;
-	/** Callback function used to generate RPCs */
-	set_producer_func     set_producer;
-	/** opaq argument passed to the producer callback */
-	void		 *set_producer_arg;
-};
-
-/**
- * Description of a single ptrlrpc_set callback
- */
-struct ptlrpc_set_cbdata {
-	/** List linkage item */
-	struct list_head	      psc_item;
-	/** Pointer to interpreting function */
-	set_interpreter_func    psc_interpret;
-	/** Opaq argument to pass to the callback */
-	void		   *psc_data;
-};
-
-struct ptlrpc_bulk_desc;
-struct ptlrpc_service_part;
-struct ptlrpc_service;
-
-/**
- * ptlrpc callback & work item stuff
- */
-struct ptlrpc_cb_id {
-	void   (*cbid_fn)(lnet_event_t *ev);     /* specific callback fn */
-	void    *cbid_arg;		      /* additional arg */
-};
-
-/** Maximum number of locks to fit into reply state */
-#define RS_MAX_LOCKS 8
-#define RS_DEBUG     0
-
-/**
- * Structure to define reply state on the server
- * Reply state holds various reply message information. Also for "difficult"
- * replies (rep-ack case) we store the state after sending reply and wait
- * for the client to acknowledge the reception. In these cases locks could be
- * added to the state for replay/failover consistency guarantees.
- */
-struct ptlrpc_reply_state {
-	/** Callback description */
-	struct ptlrpc_cb_id    rs_cb_id;
-	/** Linkage for list of all reply states in a system */
-	struct list_head	     rs_list;
-	/** Linkage for list of all reply states on same export */
-	struct list_head	     rs_exp_list;
-	/** Linkage for list of all reply states for same obd */
-	struct list_head	     rs_obd_list;
-#if RS_DEBUG
-	struct list_head	     rs_debug_list;
-#endif
-	/** A spinlock to protect the reply state flags */
-	spinlock_t		rs_lock;
-	/** Reply state flags */
-	unsigned long	  rs_difficult:1;     /* ACK/commit stuff */
-	unsigned long	  rs_no_ack:1;    /* no ACK, even for
-						  difficult requests */
-	unsigned long	  rs_scheduled:1;     /* being handled? */
-	unsigned long	  rs_scheduled_ever:1;/* any schedule attempts? */
-	unsigned long	  rs_handled:1;  /* been handled yet? */
-	unsigned long	  rs_on_net:1;   /* reply_out_callback pending? */
-	unsigned long	  rs_prealloc:1; /* rs from prealloc list */
-	unsigned long	  rs_committed:1;/* the transaction was committed
-						 and the rs was dispatched
-						 by ptlrpc_commit_replies */
-	/** Size of the state */
-	int		    rs_size;
-	/** opcode */
-	__u32		  rs_opc;
-	/** Transaction number */
-	__u64		  rs_transno;
-	/** xid */
-	__u64		  rs_xid;
-	struct obd_export     *rs_export;
-	struct ptlrpc_service_part *rs_svcpt;
-	/** Lnet metadata handle for the reply */
-	lnet_handle_md_t       rs_md_h;
-	atomic_t	   rs_refcount;
-
-	/** Context for the service thread */
-	struct ptlrpc_svc_ctx *rs_svc_ctx;
-	/** Reply buffer (actually sent to the client), encoded if needed */
-	struct lustre_msg     *rs_repbuf;       /* wrapper */
-	/** Size of the reply buffer */
-	int		    rs_repbuf_len;   /* wrapper buf length */
-	/** Size of the reply message */
-	int		    rs_repdata_len;  /* wrapper msg length */
-	/**
-	 * Actual reply message. Its content is encrypted (if needed) to
-	 * produce reply buffer for actual sending. In simple case
-	 * of no network encryption we just set \a rs_repbuf to \a rs_msg
-	 */
-	struct lustre_msg     *rs_msg;	  /* reply message */
-
-	/** Number of locks awaiting client ACK */
-	int		    rs_nlocks;
-	/** Handles of locks awaiting client reply ACK */
-	struct lustre_handle   rs_locks[RS_MAX_LOCKS];
-	/** Lock modes of locks in \a rs_locks */
-	ldlm_mode_t	    rs_modes[RS_MAX_LOCKS];
-};
-
-struct ptlrpc_thread;
-
-/** RPC stages */
-enum rq_phase {
-	RQ_PHASE_NEW	    = 0xebc0de00,
-	RQ_PHASE_RPC	    = 0xebc0de01,
-	RQ_PHASE_BULK	   = 0xebc0de02,
-	RQ_PHASE_INTERPRET      = 0xebc0de03,
-	RQ_PHASE_COMPLETE       = 0xebc0de04,
-	RQ_PHASE_UNREGISTERING  = 0xebc0de05,
-	RQ_PHASE_UNDEFINED      = 0xebc0de06
-};
-
-/** Type of request interpreter call-back */
-typedef int (*ptlrpc_interpterer_t)(const struct lu_env *env,
-				    struct ptlrpc_request *req,
-				    void *arg, int rc);
-
-/**
- * Definition of request pool structure.
- * The pool is used to store empty preallocated requests for the case
- * when we would actually need to send something without performing
- * any allocations (to avoid e.g. OOM).
- */
-struct ptlrpc_request_pool {
-	/** Locks the list */
-	spinlock_t prp_lock;
-	/** list of ptlrpc_request structs */
-	struct list_head prp_req_list;
-	/** Maximum message size that would fit into a request from this pool */
-	int prp_rq_size;
-	/** Function to allocate more requests for this pool */
-	void (*prp_populate)(struct ptlrpc_request_pool *, int);
-};
-
-struct lu_context;
-struct lu_env;
-
-struct ldlm_lock;
-
-/**
- * \defgroup nrs Network Request Scheduler
- * @{
- */
-struct ptlrpc_nrs_policy;
-struct ptlrpc_nrs_resource;
-struct ptlrpc_nrs_request;
-
-/**
- * NRS control operations.
- *
- * These are common for all policies.
- */
-enum ptlrpc_nrs_ctl {
-	/**
-	 * Not a valid opcode.
-	 */
-	PTLRPC_NRS_CTL_INVALID,
-	/**
-	 * Activate the policy.
-	 */
-	PTLRPC_NRS_CTL_START,
-	/**
-	 * Reserved for multiple primary policies, which may be a possibility
-	 * in the future.
-	 */
-	PTLRPC_NRS_CTL_STOP,
-	/**
-	 * Policies can start using opcodes from this value and onwards for
-	 * their own purposes; the assigned value itself is arbitrary.
-	 */
-	PTLRPC_NRS_CTL_1ST_POL_SPEC = 0x20,
-};
-
-/**
- * ORR policy operations
- */
-enum nrs_ctl_orr {
-	NRS_CTL_ORR_RD_QUANTUM = PTLRPC_NRS_CTL_1ST_POL_SPEC,
-	NRS_CTL_ORR_WR_QUANTUM,
-	NRS_CTL_ORR_RD_OFF_TYPE,
-	NRS_CTL_ORR_WR_OFF_TYPE,
-	NRS_CTL_ORR_RD_SUPP_REQ,
-	NRS_CTL_ORR_WR_SUPP_REQ,
-};
-
-/**
- * NRS policy operations.
- *
- * These determine the behaviour of a policy, and are called in response to
- * NRS core events.
- */
-struct ptlrpc_nrs_pol_ops {
-	/**
-	 * Called during policy registration; this operation is optional.
-	 *
-	 * \param[in,out] policy The policy being initialized
-	 */
-	int	(*op_policy_init) (struct ptlrpc_nrs_policy *policy);
-	/**
-	 * Called during policy unregistration; this operation is optional.
-	 *
-	 * \param[in,out] policy The policy being unregistered/finalized
-	 */
-	void	(*op_policy_fini) (struct ptlrpc_nrs_policy *policy);
-	/**
-	 * Called when activating a policy via lprocfs; policies allocate and
-	 * initialize their resources here; this operation is optional.
-	 *
-	 * \param[in,out] policy The policy being started
-	 *
-	 * \see nrs_policy_start_locked()
-	 */
-	int	(*op_policy_start) (struct ptlrpc_nrs_policy *policy);
-	/**
-	 * Called when deactivating a policy via lprocfs; policies deallocate
-	 * their resources here; this operation is optional
-	 *
-	 * \param[in,out] policy The policy being stopped
-	 *
-	 * \see nrs_policy_stop0()
-	 */
-	void	(*op_policy_stop) (struct ptlrpc_nrs_policy *policy);
-	/**
-	 * Used for policy-specific operations; i.e. not generic ones like
-	 * \e PTLRPC_NRS_CTL_START and \e PTLRPC_NRS_CTL_GET_INFO; analogous
-	 * to an ioctl; this operation is optional.
-	 *
-	 * \param[in,out]	 policy The policy carrying out operation \a opc
-	 * \param[in]	  opc	 The command operation being carried out
-	 * \param[in,out] arg	 An generic buffer for communication between the
-	 *			 user and the control operation
-	 *
-	 * \retval -ve error
-	 * \retval   0 success
-	 *
-	 * \see ptlrpc_nrs_policy_control()
-	 */
-	int	(*op_policy_ctl) (struct ptlrpc_nrs_policy *policy,
-				  enum ptlrpc_nrs_ctl opc, void *arg);
-
-	/**
-	 * Called when obtaining references to the resources of the resource
-	 * hierarchy for a request that has arrived for handling at the PTLRPC
-	 * service. Policies should return -ve for requests they do not wish
-	 * to handle. This operation is mandatory.
-	 *
-	 * \param[in,out] policy  The policy we're getting resources for.
-	 * \param[in,out] nrq	  The request we are getting resources for.
-	 * \param[in]	  parent  The parent resource of the resource being
-	 *			  requested; set to NULL if none.
-	 * \param[out]	  resp	  The resource is to be returned here; the
-	 *			  fallback policy in an NRS head should
-	 *			  \e always return a non-NULL pointer value.
-	 * \param[in]  moving_req When set, signifies that this is an attempt
-	 *			  to obtain resources for a request being moved
-	 *			  to the high-priority NRS head by
-	 *			  ldlm_lock_reorder_req().
-	 *			  This implies two things:
-	 *			  1. We are under obd_export::exp_rpc_lock and
-	 *			  so should not sleep.
-	 *			  2. We should not perform non-idempotent or can
-	 *			  skip performing idempotent operations that
-	 *			  were carried out when resources were first
-	 *			  taken for the request when it was initialized
-	 *			  in ptlrpc_nrs_req_initialize().
-	 *
-	 * \retval 0, +ve The level of the returned resource in the resource
-	 *		  hierarchy; currently only 0 (for a non-leaf resource)
-	 *		  and 1 (for a leaf resource) are supported by the
-	 *		  framework.
-	 * \retval -ve	  error
-	 *
-	 * \see ptlrpc_nrs_req_initialize()
-	 * \see ptlrpc_nrs_hpreq_add_nolock()
-	 * \see ptlrpc_nrs_req_hp_move()
-	 */
-	int	(*op_res_get) (struct ptlrpc_nrs_policy *policy,
-			       struct ptlrpc_nrs_request *nrq,
-			       const struct ptlrpc_nrs_resource *parent,
-			       struct ptlrpc_nrs_resource **resp,
-			       bool moving_req);
-	/**
-	 * Called when releasing references taken for resources in the resource
-	 * hierarchy for the request; this operation is optional.
-	 *
-	 * \param[in,out] policy The policy the resource belongs to
-	 * \param[in] res	 The resource to be freed
-	 *
-	 * \see ptlrpc_nrs_req_finalize()
-	 * \see ptlrpc_nrs_hpreq_add_nolock()
-	 * \see ptlrpc_nrs_req_hp_move()
-	 */
-	void	(*op_res_put) (struct ptlrpc_nrs_policy *policy,
-			       const struct ptlrpc_nrs_resource *res);
-
-	/**
-	 * Obtains a request for handling from the policy, and optionally
-	 * removes the request from the policy; this operation is mandatory.
-	 *
-	 * \param[in,out] policy The policy to poll
-	 * \param[in]	  peek	 When set, signifies that we just want to
-	 *			 examine the request, and not handle it, so the
-	 *			 request is not removed from the policy.
-	 * \param[in]	  force	 When set, it will force a policy to return a
-	 *			 request if it has one queued.
-	 *
-	 * \retval NULL No request available for handling
-	 * \retval valid-pointer The request polled for handling
-	 *
-	 * \see ptlrpc_nrs_req_get_nolock()
-	 */
-	struct ptlrpc_nrs_request *
-		(*op_req_get) (struct ptlrpc_nrs_policy *policy, bool peek,
-			       bool force);
-	/**
-	 * Called when attempting to add a request to a policy for later
-	 * handling; this operation is mandatory.
-	 *
-	 * \param[in,out] policy  The policy on which to enqueue \a nrq
-	 * \param[in,out] nrq The request to enqueue
-	 *
-	 * \retval 0	success
-	 * \retval != 0	error
-	 *
-	 * \see ptlrpc_nrs_req_add_nolock()
-	 */
-	int	(*op_req_enqueue) (struct ptlrpc_nrs_policy *policy,
-				   struct ptlrpc_nrs_request *nrq);
-	/**
-	 * Removes a request from the policy's set of pending requests. Normally
-	 * called after a request has been polled successfully from the policy
-	 * for handling; this operation is mandatory.
-	 *
-	 * \param[in,out] policy The policy the request \a nrq belongs to
-	 * \param[in,out] nrq    The request to dequeue
-	 *
-	 * \see ptlrpc_nrs_req_del_nolock()
-	 */
-	void	(*op_req_dequeue) (struct ptlrpc_nrs_policy *policy,
-				   struct ptlrpc_nrs_request *nrq);
-	/**
-	 * Called after the request being carried out. Could be used for
-	 * job/resource control; this operation is optional.
-	 *
-	 * \param[in,out] policy The policy which is stopping to handle request
-	 *			 \a nrq
-	 * \param[in,out] nrq	 The request
-	 *
-	 * \pre assert_spin_locked(&svcpt->scp_req_lock)
-	 *
-	 * \see ptlrpc_nrs_req_stop_nolock()
-	 */
-	void	(*op_req_stop) (struct ptlrpc_nrs_policy *policy,
-				struct ptlrpc_nrs_request *nrq);
-	/**
-	 * Registers the policy's lprocfs interface with a PTLRPC service.
-	 *
-	 * \param[in] svc The service
-	 *
-	 * \retval 0	success
-	 * \retval != 0	error
-	 */
-	int	(*op_lprocfs_init) (struct ptlrpc_service *svc);
-	/**
-	 * Unegisters the policy's lprocfs interface with a PTLRPC service.
-	 *
-	 * In cases of failed policy registration in
-	 * \e ptlrpc_nrs_policy_register(), this function may be called for a
-	 * service which has not registered the policy successfully, so
-	 * implementations of this method should make sure their operations are
-	 * safe in such cases.
-	 *
-	 * \param[in] svc The service
-	 */
-	void	(*op_lprocfs_fini) (struct ptlrpc_service *svc);
-};
-
-/**
- * Policy flags
- */
-enum nrs_policy_flags {
-	/**
-	 * Fallback policy, use this flag only on a single supported policy per
-	 * service. The flag cannot be used on policies that use
-	 * \e PTLRPC_NRS_FL_REG_EXTERN
-	 */
-	PTLRPC_NRS_FL_FALLBACK		= (1 << 0),
-	/**
-	 * Start policy immediately after registering.
-	 */
-	PTLRPC_NRS_FL_REG_START		= (1 << 1),
-	/**
-	 * This is a policy registering from a module different to the one NRS
-	 * core ships in (currently ptlrpc).
-	 */
-	PTLRPC_NRS_FL_REG_EXTERN	= (1 << 2),
-};
-
-/**
- * NRS queue type.
- *
- * Denotes whether an NRS instance is for handling normal or high-priority
- * RPCs, or whether an operation pertains to one or both of the NRS instances
- * in a service.
- */
-enum ptlrpc_nrs_queue_type {
-	PTLRPC_NRS_QUEUE_REG	= (1 << 0),
-	PTLRPC_NRS_QUEUE_HP	= (1 << 1),
-	PTLRPC_NRS_QUEUE_BOTH	= (PTLRPC_NRS_QUEUE_REG | PTLRPC_NRS_QUEUE_HP)
-};
-
-/**
- * NRS head
- *
- * A PTLRPC service has at least one NRS head instance for handling normal
- * priority RPCs, and may optionally have a second NRS head instance for
- * handling high-priority RPCs. Each NRS head maintains a list of available
- * policies, of which one and only one policy is acting as the fallback policy,
- * and optionally a different policy may be acting as the primary policy. For
- * all RPCs handled by this NRS head instance, NRS core will first attempt to
- * enqueue the RPC using the primary policy (if any). The fallback policy is
- * used in the following cases:
- * - when there was no primary policy in the
- *   ptlrpc_nrs_pol_state::NRS_POL_STATE_STARTED state at the time the request
- *   was initialized.
- * - when the primary policy that was at the
- *   ptlrpc_nrs_pol_state::PTLRPC_NRS_POL_STATE_STARTED state at the time the
- *   RPC was initialized, denoted it did not wish, or for some other reason was
- *   not able to handle the request, by returning a non-valid NRS resource
- *   reference.
- * - when the primary policy that was at the
- *   ptlrpc_nrs_pol_state::PTLRPC_NRS_POL_STATE_STARTED state at the time the
- *   RPC was initialized, fails later during the request enqueueing stage.
- *
- * \see nrs_resource_get_safe()
- * \see nrs_request_enqueue()
- */
-struct ptlrpc_nrs {
-	spinlock_t			nrs_lock;
-	/** XXX Possibly replace svcpt->scp_req_lock with another lock here. */
-	/**
-	 * List of registered policies
-	 */
-	struct list_head			nrs_policy_list;
-	/**
-	 * List of policies with queued requests. Policies that have any
-	 * outstanding requests are queued here, and this list is queried
-	 * in a round-robin manner from NRS core when obtaining a request
-	 * for handling. This ensures that requests from policies that at some
-	 * point transition away from the
-	 * ptlrpc_nrs_pol_state::NRS_POL_STATE_STARTED state are drained.
-	 */
-	struct list_head			nrs_policy_queued;
-	/**
-	 * Service partition for this NRS head
-	 */
-	struct ptlrpc_service_part     *nrs_svcpt;
-	/**
-	 * Primary policy, which is the preferred policy for handling RPCs
-	 */
-	struct ptlrpc_nrs_policy       *nrs_policy_primary;
-	/**
-	 * Fallback policy, which is the backup policy for handling RPCs
-	 */
-	struct ptlrpc_nrs_policy       *nrs_policy_fallback;
-	/**
-	 * This NRS head handles either HP or regular requests
-	 */
-	enum ptlrpc_nrs_queue_type	nrs_queue_type;
-	/**
-	 * # queued requests from all policies in this NRS head
-	 */
-	unsigned long			nrs_req_queued;
-	/**
-	 * # scheduled requests from all policies in this NRS head
-	 */
-	unsigned long			nrs_req_started;
-	/**
-	 * # policies on this NRS
-	 */
-	unsigned			nrs_num_pols;
-	/**
-	 * This NRS head is in progress of starting a policy
-	 */
-	unsigned			nrs_policy_starting:1;
-	/**
-	 * In progress of shutting down the whole NRS head; used during
-	 * unregistration
-	 */
-	unsigned			nrs_stopping:1;
-};
-
-#define NRS_POL_NAME_MAX		16
-
-struct ptlrpc_nrs_pol_desc;
-
-/**
- * Service compatibility predicate; this determines whether a policy is adequate
- * for handling RPCs of a particular PTLRPC service.
- *
- * XXX:This should give the same result during policy registration and
- * unregistration, and for all partitions of a service; so the result should not
- * depend on temporal service or other properties, that may influence the
- * result.
- */
-typedef bool (*nrs_pol_desc_compat_t) (const struct ptlrpc_service *svc,
-				       const struct ptlrpc_nrs_pol_desc *desc);
-
-struct ptlrpc_nrs_pol_conf {
-	/**
-	 * Human-readable policy name
-	 */
-	char				   nc_name[NRS_POL_NAME_MAX];
-	/**
-	 * NRS operations for this policy
-	 */
-	const struct ptlrpc_nrs_pol_ops	  *nc_ops;
-	/**
-	 * Service compatibility predicate
-	 */
-	nrs_pol_desc_compat_t		   nc_compat;
-	/**
-	 * Set for policies that support a single ptlrpc service, i.e. ones that
-	 * have \a pd_compat set to nrs_policy_compat_one(). The variable value
-	 * depicts the name of the single service that such policies are
-	 * compatible with.
-	 */
-	const char			  *nc_compat_svc_name;
-	/**
-	 * Owner module for this policy descriptor; policies registering from a
-	 * different module to the one the NRS framework is held within
-	 * (currently ptlrpc), should set this field to THIS_MODULE.
-	 */
-	struct module			  *nc_owner;
-	/**
-	 * Policy registration flags; a bitmask of \e nrs_policy_flags
-	 */
-	unsigned			   nc_flags;
-};
-
-/**
- * NRS policy registering descriptor
- *
- * Is used to hold a description of a policy that can be passed to NRS core in
- * order to register the policy with NRS heads in different PTLRPC services.
- */
-struct ptlrpc_nrs_pol_desc {
-	/**
-	 * Human-readable policy name
-	 */
-	char					pd_name[NRS_POL_NAME_MAX];
-	/**
-	 * Link into nrs_core::nrs_policies
-	 */
-	struct list_head				pd_list;
-	/**
-	 * NRS operations for this policy
-	 */
-	const struct ptlrpc_nrs_pol_ops	       *pd_ops;
-	/**
-	 * Service compatibility predicate
-	 */
-	nrs_pol_desc_compat_t			pd_compat;
-	/**
-	 * Set for policies that are compatible with only one PTLRPC service.
-	 *
-	 * \see ptlrpc_nrs_pol_conf::nc_compat_svc_name
-	 */
-	const char			       *pd_compat_svc_name;
-	/**
-	 * Owner module for this policy descriptor.
-	 *
-	 * We need to hold a reference to the module whenever we might make use
-	 * of any of the module's contents, i.e.
-	 * - If one or more instances of the policy are at a state where they
-	 *   might be handling a request, i.e.
-	 *   ptlrpc_nrs_pol_state::NRS_POL_STATE_STARTED or
-	 *   ptlrpc_nrs_pol_state::NRS_POL_STATE_STOPPING as we will have to
-	 *   call into the policy's ptlrpc_nrs_pol_ops() handlers. A reference
-	 *   is taken on the module when
-	 *   \e ptlrpc_nrs_pol_desc::pd_refs becomes 1, and released when it
-	 *   becomes 0, so that we hold only one reference to the module maximum
-	 *   at any time.
-	 *
-	 *   We do not need to hold a reference to the module, even though we
-	 *   might use code and data from the module, in the following cases:
-	 * - During external policy registration, because this should happen in
-	 *   the module's init() function, in which case the module is safe from
-	 *   removal because a reference is being held on the module by the
-	 *   kernel, and iirc kmod (and I guess module-init-tools also) will
-	 *   serialize any racing processes properly anyway.
-	 * - During external policy unregistration, because this should happen
-	 *   in a module's exit() function, and any attempts to start a policy
-	 *   instance would need to take a reference on the module, and this is
-	 *   not possible once we have reached the point where the exit()
-	 *   handler is called.
-	 * - During service registration and unregistration, as service setup
-	 *   and cleanup, and policy registration, unregistration and policy
-	 *   instance starting, are serialized by \e nrs_core::nrs_mutex, so
-	 *   as long as users adhere to the convention of registering policies
-	 *   in init() and unregistering them in module exit() functions, there
-	 *   should not be a race between these operations.
-	 * - During any policy-specific lprocfs operations, because a reference
-	 *   is held by the kernel on a proc entry that has been entered by a
-	 *   syscall, so as long as proc entries are removed during unregistration time,
-	 *   then unregistration and lprocfs operations will be properly
-	 *   serialized.
-	 */
-	struct module			       *pd_owner;
-	/**
-	 * Bitmask of \e nrs_policy_flags
-	 */
-	unsigned				pd_flags;
-	/**
-	 * # of references on this descriptor
-	 */
-	atomic_t				pd_refs;
-};
-
-/**
- * NRS policy state
- *
- * Policies transition from one state to the other during their lifetime
- */
-enum ptlrpc_nrs_pol_state {
-	/**
-	 * Not a valid policy state.
-	 */
-	NRS_POL_STATE_INVALID,
-	/**
-	 * Policies are at this state either at the start of their life, or
-	 * transition here when the user selects a different policy to act
-	 * as the primary one.
-	 */
-	NRS_POL_STATE_STOPPED,
-	/**
-	 * Policy is progress of stopping
-	 */
-	NRS_POL_STATE_STOPPING,
-	/**
-	 * Policy is in progress of starting
-	 */
-	NRS_POL_STATE_STARTING,
-	/**
-	 * A policy is in this state in two cases:
-	 * - it is the fallback policy, which is always in this state.
-	 * - it has been activated by the user; i.e. it is the primary policy,
-	 */
-	NRS_POL_STATE_STARTED,
-};
-
-/**
- * NRS policy information
- *
- * Used for obtaining information for the status of a policy via lprocfs
- */
-struct ptlrpc_nrs_pol_info {
-	/**
-	 * Policy name
-	 */
-	char				pi_name[NRS_POL_NAME_MAX];
-	/**
-	 * Current policy state
-	 */
-	enum ptlrpc_nrs_pol_state	pi_state;
-	/**
-	 * # RPCs enqueued for later dispatching by the policy
-	 */
-	long				pi_req_queued;
-	/**
-	 * # RPCs started for dispatch by the policy
-	 */
-	long				pi_req_started;
-	/**
-	 * Is this a fallback policy?
-	 */
-	unsigned			pi_fallback:1;
-};
-
-/**
- * NRS policy
- *
- * There is one instance of this for each policy in each NRS head of each
- * PTLRPC service partition.
- */
-struct ptlrpc_nrs_policy {
-	/**
-	 * Linkage into the NRS head's list of policies,
-	 * ptlrpc_nrs:nrs_policy_list
-	 */
-	struct list_head			pol_list;
-	/**
-	 * Linkage into the NRS head's list of policies with enqueued
-	 * requests ptlrpc_nrs:nrs_policy_queued
-	 */
-	struct list_head			pol_list_queued;
-	/**
-	 * Current state of this policy
-	 */
-	enum ptlrpc_nrs_pol_state	pol_state;
-	/**
-	 * Bitmask of nrs_policy_flags
-	 */
-	unsigned			pol_flags;
-	/**
-	 * # RPCs enqueued for later dispatching by the policy
-	 */
-	long				pol_req_queued;
-	/**
-	 * # RPCs started for dispatch by the policy
-	 */
-	long				pol_req_started;
-	/**
-	 * Usage Reference count taken on the policy instance
-	 */
-	long				pol_ref;
-	/**
-	 * The NRS head this policy has been created at
-	 */
-	struct ptlrpc_nrs	       *pol_nrs;
-	/**
-	 * Private policy data; varies by policy type
-	 */
-	void			       *pol_private;
-	/**
-	 * Policy descriptor for this policy instance.
-	 */
-	struct ptlrpc_nrs_pol_desc     *pol_desc;
-};
-
-/**
- * NRS resource
- *
- * Resources are embedded into two types of NRS entities:
- * - Inside NRS policies, in the policy's private data in
- *   ptlrpc_nrs_policy::pol_private
- * - In objects that act as prime-level scheduling entities in different NRS
- *   policies; e.g. on a policy that performs round robin or similar order
- *   scheduling across client NIDs, there would be one NRS resource per unique
- *   client NID. On a policy which performs round robin scheduling across
- *   backend filesystem objects, there would be one resource associated with
- *   each of the backend filesystem objects partaking in the scheduling
- *   performed by the policy.
- *
- * NRS resources share a parent-child relationship, in which resources embedded
- * in policy instances are the parent entities, with all scheduling entities
- * a policy schedules across being the children, thus forming a simple resource
- * hierarchy. This hierarchy may be extended with one or more levels in the
- * future if the ability to have more than one primary policy is added.
- *
- * Upon request initialization, references to the then active NRS policies are
- * taken and used to later handle the dispatching of the request with one of
- * these policies.
- *
- * \see nrs_resource_get_safe()
- * \see ptlrpc_nrs_req_add()
- */
-struct ptlrpc_nrs_resource {
-	/**
-	 * This NRS resource's parent; is NULL for resources embedded in NRS
-	 * policy instances; i.e. those are top-level ones.
-	 */
-	struct ptlrpc_nrs_resource     *res_parent;
-	/**
-	 * The policy associated with this resource.
-	 */
-	struct ptlrpc_nrs_policy       *res_policy;
-};
-
-enum {
-	NRS_RES_FALLBACK,
-	NRS_RES_PRIMARY,
-	NRS_RES_MAX
-};
-
-/* \name fifo
- *
- * FIFO policy
- *
- * This policy is a logical wrapper around previous, non-NRS functionality.
- * It dispatches RPCs in the same order as they arrive from the network. This
- * policy is currently used as the fallback policy, and the only enabled policy
- * on all NRS heads of all PTLRPC service partitions.
- * @{
- */
-
-/**
- * Private data structure for the FIFO policy
- */
-struct nrs_fifo_head {
-	/**
-	 * Resource object for policy instance.
-	 */
-	struct ptlrpc_nrs_resource	fh_res;
-	/**
-	 * List of queued requests.
-	 */
-	struct list_head			fh_list;
-	/**
-	 * For debugging purposes.
-	 */
-	__u64				fh_sequence;
-};
-
-struct nrs_fifo_req {
-	struct list_head		fr_list;
-	__u64			fr_sequence;
-};
-
-/** @} fifo */
-
-/**
- * NRS request
- *
- * Instances of this object exist embedded within ptlrpc_request; the main
- * purpose of this object is to hold references to the request's resources
- * for the lifetime of the request, and to hold properties that policies use
- * use for determining the request's scheduling priority.
- * */
-struct ptlrpc_nrs_request {
-	/**
-	 * The request's resource hierarchy.
-	 */
-	struct ptlrpc_nrs_resource     *nr_res_ptrs[NRS_RES_MAX];
-	/**
-	 * Index into ptlrpc_nrs_request::nr_res_ptrs of the resource of the
-	 * policy that was used to enqueue the request.
-	 *
-	 * \see nrs_request_enqueue()
-	 */
-	unsigned			nr_res_idx;
-	unsigned			nr_initialized:1;
-	unsigned			nr_enqueued:1;
-	unsigned			nr_started:1;
-	unsigned			nr_finalized:1;
-
-	/**
-	 * Policy-specific fields, used for determining a request's scheduling
-	 * priority, and other supporting functionality.
-	 */
-	union {
-		/**
-		 * Fields for the FIFO policy
-		 */
-		struct nrs_fifo_req	fifo;
-	} nr_u;
-	/**
-	 * Externally-registering policies may want to use this to allocate
-	 * their own request properties.
-	 */
-	void			       *ext;
-};
-
-/** @} nrs */
-
-/**
- * Basic request prioritization operations structure.
- * The whole idea is centered around locks and RPCs that might affect locks.
- * When a lock is contended we try to give priority to RPCs that might lead
- * to fastest release of that lock.
- * Currently only implemented for OSTs only in a way that makes all
- * IO and truncate RPCs that are coming from a locked region where a lock is
- * contended a priority over other requests.
- */
-struct ptlrpc_hpreq_ops {
-	/**
-	 * Check if the lock handle of the given lock is the same as
-	 * taken from the request.
-	 */
-	int  (*hpreq_lock_match)(struct ptlrpc_request *, struct ldlm_lock *);
-	/**
-	 * Check if the request is a high priority one.
-	 */
-	int  (*hpreq_check)(struct ptlrpc_request *);
-	/**
-	 * Called after the request has been handled.
-	 */
-	void (*hpreq_fini)(struct ptlrpc_request *);
-};
-
-/**
- * Represents remote procedure call.
- *
- * This is a staple structure used by everybody wanting to send a request
- * in Lustre.
- */
-struct ptlrpc_request {
-	/* Request type: one of PTL_RPC_MSG_* */
-	int rq_type;
-	/** Result of request processing */
-	int rq_status;
-	/**
-	 * Linkage item through which this request is included into
-	 * sending/delayed lists on client and into rqbd list on server
-	 */
-	struct list_head rq_list;
-	/**
-	 * Server side list of incoming unserved requests sorted by arrival
-	 * time.  Traversed from time to time to notice about to expire
-	 * requests and sent back "early replies" to clients to let them
-	 * know server is alive and well, just very busy to service their
-	 * requests in time
-	 */
-	struct list_head rq_timed_list;
-	/** server-side history, used for debugging purposes. */
-	struct list_head rq_history_list;
-	/** server-side per-export list */
-	struct list_head rq_exp_list;
-	/** server-side hp handlers */
-	struct ptlrpc_hpreq_ops *rq_ops;
-
-	/** initial thread servicing this request */
-	struct ptlrpc_thread *rq_svc_thread;
-
-	/** history sequence # */
-	__u64 rq_history_seq;
-	/** \addtogroup  nrs
-	 * @{
-	 */
-	/** stub for NRS request */
-	struct ptlrpc_nrs_request rq_nrq;
-	/** @} nrs */
-	/** the index of service's srv_at_array into which request is linked */
-	time_t rq_at_index;
-	/** Lock to protect request flags and some other important bits, like
-	 * rq_list
-	 */
-	spinlock_t rq_lock;
-	/** client-side flags are serialized by rq_lock */
-	unsigned int rq_intr:1, rq_replied:1, rq_err:1,
-		rq_timedout:1, rq_resend:1, rq_restart:1,
-		/**
-		 * when ->rq_replay is set, request is kept by the client even
-		 * after server commits corresponding transaction. This is
-		 * used for operations that require sequence of multiple
-		 * requests to be replayed. The only example currently is file
-		 * open/close. When last request in such a sequence is
-		 * committed, ->rq_replay is cleared on all requests in the
-		 * sequence.
-		 */
-		rq_replay:1,
-		rq_no_resend:1, rq_waiting:1, rq_receiving_reply:1,
-		rq_no_delay:1, rq_net_err:1, rq_wait_ctx:1,
-		rq_early:1,
-		rq_req_unlink:1, rq_reply_unlink:1,
-		rq_memalloc:1,      /* req originated from "kswapd" */
-		/* server-side flags */
-		rq_packed_final:1,  /* packed final reply */
-		rq_hp:1,	    /* high priority RPC */
-		rq_at_linked:1,     /* link into service's srv_at_array */
-		rq_reply_truncate:1,
-		rq_committed:1,
-		/* whether the "rq_set" is a valid one */
-		rq_invalid_rqset:1,
-		rq_generation_set:1,
-		/* do not resend request on -EINPROGRESS */
-		rq_no_retry_einprogress:1,
-		/* allow the req to be sent if the import is in recovery
-		 * status */
-		rq_allow_replay:1;
-
-	unsigned int rq_nr_resend;
-
-	enum rq_phase rq_phase; /* one of RQ_PHASE_* */
-	enum rq_phase rq_next_phase; /* one of RQ_PHASE_* to be used next */
-	atomic_t rq_refcount;/* client-side refcount for SENT race,
-				    server-side refcount for multiple replies */
-
-	/** Portal to which this request would be sent */
-	short rq_request_portal;  /* XXX FIXME bug 249 */
-	/** Portal where to wait for reply and where reply would be sent */
-	short rq_reply_portal;    /* XXX FIXME bug 249 */
-
-	/**
-	 * client-side:
-	 * !rq_truncate : # reply bytes actually received,
-	 *  rq_truncate : required repbuf_len for resend
-	 */
-	int rq_nob_received;
-	/** Request length */
-	int rq_reqlen;
-	/** Reply length */
-	int rq_replen;
-	/** Request message - what client sent */
-	struct lustre_msg *rq_reqmsg;
-	/** Reply message - server response */
-	struct lustre_msg *rq_repmsg;
-	/** Transaction number */
-	__u64 rq_transno;
-	/** xid */
-	__u64 rq_xid;
-	/**
-	 * List item to for replay list. Not yet committed requests get linked
-	 * there.
-	 * Also see \a rq_replay comment above.
-	 */
-	struct list_head rq_replay_list;
-
-	/**
-	 * security and encryption data
-	 * @{ */
-	struct ptlrpc_cli_ctx   *rq_cli_ctx;     /**< client's half ctx */
-	struct ptlrpc_svc_ctx   *rq_svc_ctx;     /**< server's half ctx */
-	struct list_head	       rq_ctx_chain;   /**< link to waited ctx */
-
-	struct sptlrpc_flavor    rq_flvr;	/**< for client & server */
-	enum lustre_sec_part     rq_sp_from;
-
-	/* client/server security flags */
-	unsigned int
-				 rq_ctx_init:1,      /* context initiation */
-				 rq_ctx_fini:1,      /* context destroy */
-				 rq_bulk_read:1,     /* request bulk read */
-				 rq_bulk_write:1,    /* request bulk write */
-				 /* server authentication flags */
-				 rq_auth_gss:1,      /* authenticated by gss */
-				 rq_auth_remote:1,   /* authed as remote user */
-				 rq_auth_usr_root:1, /* authed as root */
-				 rq_auth_usr_mdt:1,  /* authed as mdt */
-				 rq_auth_usr_ost:1,  /* authed as ost */
-				 /* security tfm flags */
-				 rq_pack_udesc:1,
-				 rq_pack_bulk:1,
-				 /* doesn't expect reply FIXME */
-				 rq_no_reply:1,
-				 rq_pill_init:1;     /* pill initialized */
-
-	uid_t		    rq_auth_uid;	/* authed uid */
-	uid_t		    rq_auth_mapped_uid; /* authed uid mapped to */
-
-	/* (server side), pointed directly into req buffer */
-	struct ptlrpc_user_desc *rq_user_desc;
-
-	/* various buffer pointers */
-	struct lustre_msg       *rq_reqbuf;      /* req wrapper */
-	char		    *rq_repbuf;      /* rep buffer */
-	struct lustre_msg       *rq_repdata;     /* rep wrapper msg */
-	struct lustre_msg       *rq_clrbuf;      /* only in priv mode */
-	int		      rq_reqbuf_len;  /* req wrapper buf len */
-	int		      rq_reqdata_len; /* req wrapper msg len */
-	int		      rq_repbuf_len;  /* rep buffer len */
-	int		      rq_repdata_len; /* rep wrapper msg len */
-	int		      rq_clrbuf_len;  /* only in priv mode */
-	int		      rq_clrdata_len; /* only in priv mode */
-
-	/** early replies go to offset 0, regular replies go after that */
-	unsigned int	     rq_reply_off;
-
-	/** @} */
-
-	/** Fields that help to see if request and reply were swabbed or not */
-	__u32 rq_req_swab_mask;
-	__u32 rq_rep_swab_mask;
-
-	/** What was import generation when this request was sent */
-	int rq_import_generation;
-	enum lustre_imp_state rq_send_state;
-
-	/** how many early replies (for stats) */
-	int rq_early_count;
-
-	/** client+server request */
-	lnet_handle_md_t     rq_req_md_h;
-	struct ptlrpc_cb_id  rq_req_cbid;
-	/** optional time limit for send attempts */
-	long       rq_delay_limit;
-	/** time request was first queued */
-	unsigned long	   rq_queued_time;
-
-	/* server-side... */
-	/** request arrival time */
-	struct timeval       rq_arrival_time;
-	/** separated reply state */
-	struct ptlrpc_reply_state *rq_reply_state;
-	/** incoming request buffer */
-	struct ptlrpc_request_buffer_desc *rq_rqbd;
-
-	/** client-only incoming reply */
-	lnet_handle_md_t     rq_reply_md_h;
-	wait_queue_head_t	  rq_reply_waitq;
-	struct ptlrpc_cb_id  rq_reply_cbid;
-
-	/** our LNet NID */
-	lnet_nid_t	   rq_self;
-	/** Peer description (the other side) */
-	lnet_process_id_t    rq_peer;
-	/** Server-side, export on which request was received */
-	struct obd_export   *rq_export;
-	/** Client side, import where request is being sent */
-	struct obd_import   *rq_import;
-
-	/** Replay callback, called after request is replayed at recovery */
-	void (*rq_replay_cb)(struct ptlrpc_request *);
-	/**
-	 * Commit callback, called when request is committed and about to be
-	 * freed.
-	 */
-	void (*rq_commit_cb)(struct ptlrpc_request *);
-	/** Opaq data for replay and commit callbacks. */
-	void  *rq_cb_data;
-
-	/** For bulk requests on client only: bulk descriptor */
-	struct ptlrpc_bulk_desc *rq_bulk;
-
-	/** client outgoing req */
-	/**
-	 * when request/reply sent (secs), or time when request should be sent
-	 */
-	time_t rq_sent;
-	/** time for request really sent out */
-	time_t rq_real_sent;
-
-	/** when request must finish. volatile
-	 * so that servers' early reply updates to the deadline aren't
-	 * kept in per-cpu cache */
-	volatile time_t rq_deadline;
-	/** when req reply unlink must finish. */
-	time_t rq_reply_deadline;
-	/** when req bulk unlink must finish. */
-	time_t rq_bulk_deadline;
-	/**
-	 * service time estimate (secs)
-	 * If the requestsis not served by this time, it is marked as timed out.
-	 */
-	int    rq_timeout;
-
-	/** Multi-rpc bits */
-	/** Per-request waitq introduced by bug 21938 for recovery waiting */
-	wait_queue_head_t rq_set_waitq;
-	/** Link item for request set lists */
-	struct list_head  rq_set_chain;
-	/** Link back to the request set */
-	struct ptlrpc_request_set *rq_set;
-	/** Async completion handler, called when reply is received */
-	ptlrpc_interpterer_t rq_interpret_reply;
-	/** Async completion context */
-	union ptlrpc_async_args rq_async_args;
-
-	/** Pool if request is from preallocated list */
-	struct ptlrpc_request_pool *rq_pool;
-
-	struct lu_context	   rq_session;
-	struct lu_context	   rq_recov_session;
-
-	/** request format description */
-	struct req_capsule	  rq_pill;
-};
-
-/**
- * Call completion handler for rpc if any, return it's status or original
- * rc if there was no handler defined for this request.
- */
-static inline int ptlrpc_req_interpret(const struct lu_env *env,
-				       struct ptlrpc_request *req, int rc)
-{
-	if (req->rq_interpret_reply != NULL) {
-		req->rq_status = req->rq_interpret_reply(env, req,
-							 &req->rq_async_args,
-							 rc);
-		return req->rq_status;
-	}
-	return rc;
-}
-
-/** \addtogroup  nrs
- * @{
- */
-int ptlrpc_nrs_policy_register(struct ptlrpc_nrs_pol_conf *conf);
-int ptlrpc_nrs_policy_unregister(struct ptlrpc_nrs_pol_conf *conf);
-void ptlrpc_nrs_req_hp_move(struct ptlrpc_request *req);
-void nrs_policy_get_info_locked(struct ptlrpc_nrs_policy *policy,
-				struct ptlrpc_nrs_pol_info *info);
-
-/*
- * Can the request be moved from the regular NRS head to the high-priority NRS
- * head (of the same PTLRPC service partition), if any?
- *
- * For a reliable result, this should be checked under svcpt->scp_req lock.
- */
-static inline bool ptlrpc_nrs_req_can_move(struct ptlrpc_request *req)
-{
-	struct ptlrpc_nrs_request *nrq = &req->rq_nrq;
-
-	/**
-	 * LU-898: Check ptlrpc_nrs_request::nr_enqueued to make sure the
-	 * request has been enqueued first, and ptlrpc_nrs_request::nr_started
-	 * to make sure it has not been scheduled yet (analogous to previous
-	 * (non-NRS) checking of !list_empty(&ptlrpc_request::rq_list).
-	 */
-	return nrq->nr_enqueued && !nrq->nr_started && !req->rq_hp;
-}
-/** @} nrs */
-
-/**
- * Returns 1 if request buffer at offset \a index was already swabbed
- */
-static inline int lustre_req_swabbed(struct ptlrpc_request *req, int index)
-{
-	LASSERT(index < sizeof(req->rq_req_swab_mask) * 8);
-	return req->rq_req_swab_mask & (1 << index);
-}
-
-/**
- * Returns 1 if request reply buffer at offset \a index was already swabbed
- */
-static inline int lustre_rep_swabbed(struct ptlrpc_request *req, int index)
-{
-	LASSERT(index < sizeof(req->rq_rep_swab_mask) * 8);
-	return req->rq_rep_swab_mask & (1 << index);
-}
-
-/**
- * Returns 1 if request needs to be swabbed into local cpu byteorder
- */
-static inline int ptlrpc_req_need_swab(struct ptlrpc_request *req)
-{
-	return lustre_req_swabbed(req, MSG_PTLRPC_HEADER_OFF);
-}
-
-/**
- * Returns 1 if request reply needs to be swabbed into local cpu byteorder
- */
-static inline int ptlrpc_rep_need_swab(struct ptlrpc_request *req)
-{
-	return lustre_rep_swabbed(req, MSG_PTLRPC_HEADER_OFF);
-}
-
-/**
- * Mark request buffer at offset \a index that it was already swabbed
- */
-static inline void lustre_set_req_swabbed(struct ptlrpc_request *req, int index)
-{
-	LASSERT(index < sizeof(req->rq_req_swab_mask) * 8);
-	LASSERT((req->rq_req_swab_mask & (1 << index)) == 0);
-	req->rq_req_swab_mask |= 1 << index;
-}
-
-/**
- * Mark request reply buffer at offset \a index that it was already swabbed
- */
-static inline void lustre_set_rep_swabbed(struct ptlrpc_request *req, int index)
-{
-	LASSERT(index < sizeof(req->rq_rep_swab_mask) * 8);
-	LASSERT((req->rq_rep_swab_mask & (1 << index)) == 0);
-	req->rq_rep_swab_mask |= 1 << index;
-}
-
-/**
- * Convert numerical request phase value \a phase into text string description
- */
-static inline const char *
-ptlrpc_phase2str(enum rq_phase phase)
-{
-	switch (phase) {
-	case RQ_PHASE_NEW:
-		return "New";
-	case RQ_PHASE_RPC:
-		return "Rpc";
-	case RQ_PHASE_BULK:
-		return "Bulk";
-	case RQ_PHASE_INTERPRET:
-		return "Interpret";
-	case RQ_PHASE_COMPLETE:
-		return "Complete";
-	case RQ_PHASE_UNREGISTERING:
-		return "Unregistering";
-	default:
-		return "?Phase?";
-	}
-}
-
-/**
- * Convert numerical request phase of the request \a req into text stringi
- * description
- */
-static inline const char *
-ptlrpc_rqphase2str(struct ptlrpc_request *req)
-{
-	return ptlrpc_phase2str(req->rq_phase);
-}
-
-/**
- * Debugging functions and helpers to print request structure into debug log
- * @{
- */
-/* Spare the preprocessor, spoil the bugs. */
-#define FLAG(field, str) (field ? str : "")
-
-/** Convert bit flags into a string */
-#define DEBUG_REQ_FLAGS(req)						    \
-	ptlrpc_rqphase2str(req),						\
-	FLAG(req->rq_intr, "I"), FLAG(req->rq_replied, "R"),		    \
-	FLAG(req->rq_err, "E"),						 \
-	FLAG(req->rq_timedout, "X") /* eXpired */, FLAG(req->rq_resend, "S"),   \
-	FLAG(req->rq_restart, "T"), FLAG(req->rq_replay, "P"),		  \
-	FLAG(req->rq_no_resend, "N"),					   \
-	FLAG(req->rq_waiting, "W"),					     \
-	FLAG(req->rq_wait_ctx, "C"), FLAG(req->rq_hp, "H"),		     \
-	FLAG(req->rq_committed, "M")
-
-#define REQ_FLAGS_FMT "%s:%s%s%s%s%s%s%s%s%s%s%s%s"
-
-void _debug_req(struct ptlrpc_request *req,
-		struct libcfs_debug_msg_data *data, const char *fmt, ...)
-	__printf(3, 4);
-
-/**
- * Helper that decides if we need to print request according to current debug
- * level settings
- */
-#define debug_req(msgdata, mask, cdls, req, fmt, a...)			\
-do {									  \
-	CFS_CHECK_STACK(msgdata, mask, cdls);				 \
-									      \
-	if (((mask) & D_CANTMASK) != 0 ||				     \
-	    ((libcfs_debug & (mask)) != 0 &&				  \
-	     (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0))		\
-		_debug_req((req), msgdata, fmt, ##a);			 \
-} while (0)
-
-/**
- * This is the debug print function you need to use to print request structure
- * content into lustre debug log.
- * for most callers (level is a constant) this is resolved at compile time */
-#define DEBUG_REQ(level, req, fmt, args...)				   \
-do {									  \
-	if ((level) & (D_ERROR | D_WARNING)) {				\
-		static struct cfs_debug_limit_state cdls;			  \
-		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, level, &cdls);	    \
-		debug_req(&msgdata, level, &cdls, req, "@@@ "fmt" ", ## args);\
-	} else {							      \
-		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, level, NULL);	     \
-		debug_req(&msgdata, level, NULL, req, "@@@ "fmt" ", ## args); \
-	}								     \
-} while (0)
-/** @} */
-
-/**
- * Structure that defines a single page of a bulk transfer
- */
-struct ptlrpc_bulk_page {
-	/** Linkage to list of pages in a bulk */
-	struct list_head       bp_link;
-	/**
-	 * Number of bytes in a page to transfer starting from \a bp_pageoffset
-	 */
-	int	      bp_buflen;
-	/** offset within a page */
-	int	      bp_pageoffset;
-	/** The page itself */
-	struct page     *bp_page;
-};
-
-#define BULK_GET_SOURCE   0
-#define BULK_PUT_SINK     1
-#define BULK_GET_SINK     2
-#define BULK_PUT_SOURCE   3
-
-/**
- * Definition of bulk descriptor.
- * Bulks are special "Two phase" RPCs where initial request message
- * is sent first and it is followed bt a transfer (o receiving) of a large
- * amount of data to be settled into pages referenced from the bulk descriptors.
- * Bulks transfers (the actual data following the small requests) are done
- * on separate LNet portals.
- * In lustre we use bulk transfers for READ and WRITE transfers from/to OSTs.
- *  Another user is readpage for MDT.
- */
-struct ptlrpc_bulk_desc {
-	/** completed with failure */
-	unsigned long bd_failure:1;
-	/** {put,get}{source,sink} */
-	unsigned long bd_type:2;
-	/** client side */
-	unsigned long bd_registered:1;
-	/** For serialization with callback */
-	spinlock_t bd_lock;
-	/** Import generation when request for this bulk was sent */
-	int bd_import_generation;
-	/** LNet portal for this bulk */
-	__u32 bd_portal;
-	/** Server side - export this bulk created for */
-	struct obd_export *bd_export;
-	/** Client side - import this bulk was sent on */
-	struct obd_import *bd_import;
-	/** Back pointer to the request */
-	struct ptlrpc_request *bd_req;
-	wait_queue_head_t	    bd_waitq;	/* server side only WQ */
-	int		    bd_iov_count;    /* # entries in bd_iov */
-	int		    bd_max_iov;      /* allocated size of bd_iov */
-	int		    bd_nob;	  /* # bytes covered */
-	int		    bd_nob_transferred; /* # bytes GOT/PUT */
-
-	__u64		  bd_last_xid;
-
-	struct ptlrpc_cb_id    bd_cbid;	 /* network callback info */
-	lnet_nid_t	     bd_sender;       /* stash event::sender */
-	int			bd_md_count;	/* # valid entries in bd_mds */
-	int			bd_md_max_brw;	/* max entries in bd_mds */
-	/** array of associated MDs */
-	lnet_handle_md_t	bd_mds[PTLRPC_BULK_OPS_COUNT];
-
-	/*
-	 * encrypt iov, size is either 0 or bd_iov_count.
-	 */
-	lnet_kiov_t	   *bd_enc_iov;
-
-	lnet_kiov_t	    bd_iov[0];
-};
-
-enum {
-	SVC_STOPPED     = 1 << 0,
-	SVC_STOPPING    = 1 << 1,
-	SVC_STARTING    = 1 << 2,
-	SVC_RUNNING     = 1 << 3,
-	SVC_EVENT       = 1 << 4,
-	SVC_SIGNAL      = 1 << 5,
-};
-
-#define PTLRPC_THR_NAME_LEN		32
-/**
- * Definition of server service thread structure
- */
-struct ptlrpc_thread {
-	/**
-	 * List of active threads in svc->srv_threads
-	 */
-	struct list_head t_link;
-	/**
-	 * thread-private data (preallocated memory)
-	 */
-	void *t_data;
-	__u32 t_flags;
-	/**
-	 * service thread index, from ptlrpc_start_threads
-	 */
-	unsigned int t_id;
-	/**
-	 * service thread pid
-	 */
-	pid_t t_pid;
-	/**
-	 * put watchdog in the structure per thread b=14840
-	 *
-	 * Lustre watchdog is removed for client in the hope
-	 * of a generic watchdog can be merged in kernel.
-	 * When that happens, we should add below back.
-	 *
-	 * struct lc_watchdog *t_watchdog;
-	 */
-	/**
-	 * the svc this thread belonged to b=18582
-	 */
-	struct ptlrpc_service_part	*t_svcpt;
-	wait_queue_head_t			t_ctl_waitq;
-	struct lu_env			*t_env;
-	char				t_name[PTLRPC_THR_NAME_LEN];
-};
-
-static inline int thread_is_init(struct ptlrpc_thread *thread)
-{
-	return thread->t_flags == 0;
-}
-
-static inline int thread_is_stopped(struct ptlrpc_thread *thread)
-{
-	return !!(thread->t_flags & SVC_STOPPED);
-}
-
-static inline int thread_is_stopping(struct ptlrpc_thread *thread)
-{
-	return !!(thread->t_flags & SVC_STOPPING);
-}
-
-static inline int thread_is_starting(struct ptlrpc_thread *thread)
-{
-	return !!(thread->t_flags & SVC_STARTING);
-}
-
-static inline int thread_is_running(struct ptlrpc_thread *thread)
-{
-	return !!(thread->t_flags & SVC_RUNNING);
-}
-
-static inline int thread_is_event(struct ptlrpc_thread *thread)
-{
-	return !!(thread->t_flags & SVC_EVENT);
-}
-
-static inline int thread_is_signal(struct ptlrpc_thread *thread)
-{
-	return !!(thread->t_flags & SVC_SIGNAL);
-}
-
-static inline void thread_clear_flags(struct ptlrpc_thread *thread, __u32 flags)
-{
-	thread->t_flags &= ~flags;
-}
-
-static inline void thread_set_flags(struct ptlrpc_thread *thread, __u32 flags)
-{
-	thread->t_flags = flags;
-}
-
-static inline void thread_add_flags(struct ptlrpc_thread *thread, __u32 flags)
-{
-	thread->t_flags |= flags;
-}
-
-static inline int thread_test_and_clear_flags(struct ptlrpc_thread *thread,
-					      __u32 flags)
-{
-	if (thread->t_flags & flags) {
-		thread->t_flags &= ~flags;
-		return 1;
-	}
-	return 0;
-}
-
-/**
- * Request buffer descriptor structure.
- * This is a structure that contains one posted request buffer for service.
- * Once data land into a buffer, event callback creates actual request and
- * notifies wakes one of the service threads to process new incoming request.
- * More than one request can fit into the buffer.
- */
-struct ptlrpc_request_buffer_desc {
-	/** Link item for rqbds on a service */
-	struct list_head	     rqbd_list;
-	/** History of requests for this buffer */
-	struct list_head	     rqbd_reqs;
-	/** Back pointer to service for which this buffer is registered */
-	struct ptlrpc_service_part *rqbd_svcpt;
-	/** LNet descriptor */
-	lnet_handle_md_t       rqbd_md_h;
-	int		    rqbd_refcount;
-	/** The buffer itself */
-	char		  *rqbd_buffer;
-	struct ptlrpc_cb_id    rqbd_cbid;
-	/**
-	 * This "embedded" request structure is only used for the
-	 * last request to fit into the buffer
-	 */
-	struct ptlrpc_request  rqbd_req;
-};
-
-typedef int  (*svc_handler_t)(struct ptlrpc_request *req);
-
-struct ptlrpc_service_ops {
-	/**
-	 * if non-NULL called during thread creation (ptlrpc_start_thread())
-	 * to initialize service specific per-thread state.
-	 */
-	int		(*so_thr_init)(struct ptlrpc_thread *thr);
-	/**
-	 * if non-NULL called during thread shutdown (ptlrpc_main()) to
-	 * destruct state created by ->srv_init().
-	 */
-	void		(*so_thr_done)(struct ptlrpc_thread *thr);
-	/**
-	 * Handler function for incoming requests for this service
-	 */
-	int		(*so_req_handler)(struct ptlrpc_request *req);
-	/**
-	 * function to determine priority of the request, it's called
-	 * on every new request
-	 */
-	int		(*so_hpreq_handler)(struct ptlrpc_request *);
-	/**
-	 * service-specific print fn
-	 */
-	void		(*so_req_printer)(void *, struct ptlrpc_request *);
-};
-
-#ifndef __cfs_cacheline_aligned
-/* NB: put it here for reducing patche dependence */
-# define __cfs_cacheline_aligned
-#endif
-
-/**
- * How many high priority requests to serve before serving one normal
- * priority request
- */
-#define PTLRPC_SVC_HP_RATIO 10
-
-/**
- * Definition of PortalRPC service.
- * The service is listening on a particular portal (like tcp port)
- * and perform actions for a specific server like IO service for OST
- * or general metadata service for MDS.
- */
-struct ptlrpc_service {
-	/** serialize /proc operations */
-	spinlock_t			srv_lock;
-	/** most often accessed fields */
-	/** chain thru all services */
-	struct list_head		      srv_list;
-	/** service operations table */
-	struct ptlrpc_service_ops	srv_ops;
-	/** only statically allocated strings here; we don't clean them */
-	char			   *srv_name;
-	/** only statically allocated strings here; we don't clean them */
-	char			   *srv_thread_name;
-	/** service thread list */
-	struct list_head		      srv_threads;
-	/** threads # should be created for each partition on initializing */
-	int				srv_nthrs_cpt_init;
-	/** limit of threads number for each partition */
-	int				srv_nthrs_cpt_limit;
-	/** Root of debugfs dir tree for this service */
-	struct dentry		   *srv_debugfs_entry;
-	/** Pointer to statistic data for this service */
-	struct lprocfs_stats	   *srv_stats;
-	/** # hp per lp reqs to handle */
-	int			     srv_hpreq_ratio;
-	/** biggest request to receive */
-	int			     srv_max_req_size;
-	/** biggest reply to send */
-	int			     srv_max_reply_size;
-	/** size of individual buffers */
-	int			     srv_buf_size;
-	/** # buffers to allocate in 1 group */
-	int			     srv_nbuf_per_group;
-	/** Local portal on which to receive requests */
-	__u32			   srv_req_portal;
-	/** Portal on the client to send replies to */
-	__u32			   srv_rep_portal;
-	/**
-	 * Tags for lu_context associated with this thread, see struct
-	 * lu_context.
-	 */
-	__u32			   srv_ctx_tags;
-	/** soft watchdog timeout multiplier */
-	int			     srv_watchdog_factor;
-	/** under unregister_service */
-	unsigned			srv_is_stopping:1;
-
-	/** max # request buffers in history per partition */
-	int				srv_hist_nrqbds_cpt_max;
-	/** number of CPTs this service bound on */
-	int				srv_ncpts;
-	/** CPTs array this service bound on */
-	__u32				*srv_cpts;
-	/** 2^srv_cptab_bits >= cfs_cpt_numbert(srv_cptable) */
-	int				srv_cpt_bits;
-	/** CPT table this service is running over */
-	struct cfs_cpt_table		*srv_cptable;
-
-	/* sysfs object */
-	struct kobject			 srv_kobj;
-	struct completion		 srv_kobj_unregister;
-	/**
-	 * partition data for ptlrpc service
-	 */
-	struct ptlrpc_service_part	*srv_parts[0];
-};
-
-/**
- * Definition of PortalRPC service partition data.
- * Although a service only has one instance of it right now, but we
- * will have multiple instances very soon (instance per CPT).
- *
- * it has four locks:
- * \a scp_lock
- *    serialize operations on rqbd and requests waiting for preprocess
- * \a scp_req_lock
- *    serialize operations active requests sent to this portal
- * \a scp_at_lock
- *    serialize adaptive timeout stuff
- * \a scp_rep_lock
- *    serialize operations on RS list (reply states)
- *
- * We don't have any use-case to take two or more locks at the same time
- * for now, so there is no lock order issue.
- */
-struct ptlrpc_service_part {
-	/** back reference to owner */
-	struct ptlrpc_service		*scp_service __cfs_cacheline_aligned;
-	/* CPT id, reserved */
-	int				scp_cpt;
-	/** always increasing number */
-	int				scp_thr_nextid;
-	/** # of starting threads */
-	int				scp_nthrs_starting;
-	/** # of stopping threads, reserved for shrinking threads */
-	int				scp_nthrs_stopping;
-	/** # running threads */
-	int				scp_nthrs_running;
-	/** service threads list */
-	struct list_head			scp_threads;
-
-	/**
-	 * serialize the following fields, used for protecting
-	 * rqbd list and incoming requests waiting for preprocess,
-	 * threads starting & stopping are also protected by this lock.
-	 */
-	spinlock_t			scp_lock  __cfs_cacheline_aligned;
-	/** total # req buffer descs allocated */
-	int				scp_nrqbds_total;
-	/** # posted request buffers for receiving */
-	int				scp_nrqbds_posted;
-	/** in progress of allocating rqbd */
-	int				scp_rqbd_allocating;
-	/** # incoming reqs */
-	int				scp_nreqs_incoming;
-	/** request buffers to be reposted */
-	struct list_head			scp_rqbd_idle;
-	/** req buffers receiving */
-	struct list_head			scp_rqbd_posted;
-	/** incoming reqs */
-	struct list_head			scp_req_incoming;
-	/** timeout before re-posting reqs, in tick */
-	long			scp_rqbd_timeout;
-	/**
-	 * all threads sleep on this. This wait-queue is signalled when new
-	 * incoming request arrives and when difficult reply has to be handled.
-	 */
-	wait_queue_head_t			scp_waitq;
-
-	/** request history */
-	struct list_head			scp_hist_reqs;
-	/** request buffer history */
-	struct list_head			scp_hist_rqbds;
-	/** # request buffers in history */
-	int				scp_hist_nrqbds;
-	/** sequence number for request */
-	__u64				scp_hist_seq;
-	/** highest seq culled from history */
-	__u64				scp_hist_seq_culled;
-
-	/**
-	 * serialize the following fields, used for processing requests
-	 * sent to this portal
-	 */
-	spinlock_t			scp_req_lock __cfs_cacheline_aligned;
-	/** # reqs in either of the NRS heads below */
-	/** # reqs being served */
-	int				scp_nreqs_active;
-	/** # HPreqs being served */
-	int				scp_nhreqs_active;
-	/** # hp requests handled */
-	int				scp_hreq_count;
-
-	/** NRS head for regular requests */
-	struct ptlrpc_nrs		scp_nrs_reg;
-	/** NRS head for HP requests; this is only valid for services that can
-	 *  handle HP requests */
-	struct ptlrpc_nrs	       *scp_nrs_hp;
-
-	/** AT stuff */
-	/** @{ */
-	/**
-	 * serialize the following fields, used for changes on
-	 * adaptive timeout
-	 */
-	spinlock_t			scp_at_lock __cfs_cacheline_aligned;
-	/** estimated rpc service time */
-	struct adaptive_timeout		scp_at_estimate;
-	/** reqs waiting for replies */
-	struct ptlrpc_at_array		scp_at_array;
-	/** early reply timer */
-	struct timer_list		scp_at_timer;
-	/** debug */
-	unsigned long			scp_at_checktime;
-	/** check early replies */
-	unsigned			scp_at_check;
-	/** @} */
-
-	/**
-	 * serialize the following fields, used for processing
-	 * replies for this portal
-	 */
-	spinlock_t			scp_rep_lock __cfs_cacheline_aligned;
-	/** all the active replies */
-	struct list_head			scp_rep_active;
-	/** List of free reply_states */
-	struct list_head			scp_rep_idle;
-	/** waitq to run, when adding stuff to srv_free_rs_list */
-	wait_queue_head_t			scp_rep_waitq;
-	/** # 'difficult' replies */
-	atomic_t			scp_nreps_difficult;
-};
-
-#define ptlrpc_service_for_each_part(part, i, svc)			\
-	for (i = 0;							\
-	     i < (svc)->srv_ncpts &&					\
-	     (svc)->srv_parts != NULL &&				\
-	     ((part) = (svc)->srv_parts[i]) != NULL; i++)
-
-/**
- * Declaration of ptlrpcd control structure
- */
-struct ptlrpcd_ctl {
-	/**
-	 * Ptlrpc thread control flags (LIOD_START, LIOD_STOP, LIOD_FORCE)
-	 */
-	unsigned long			pc_flags;
-	/**
-	 * Thread lock protecting structure fields.
-	 */
-	spinlock_t			pc_lock;
-	/**
-	 * Start completion.
-	 */
-	struct completion		pc_starting;
-	/**
-	 * Stop completion.
-	 */
-	struct completion		pc_finishing;
-	/**
-	 * Thread requests set.
-	 */
-	struct ptlrpc_request_set  *pc_set;
-	/**
-	 * Thread name used in kthread_run()
-	 */
-	char			pc_name[16];
-	/**
-	 * Environment for request interpreters to run in.
-	 */
-	struct lu_env	       pc_env;
-	/**
-	 * Index of ptlrpcd thread in the array.
-	 */
-	int			 pc_index;
-	/**
-	 * Number of the ptlrpcd's partners.
-	 */
-	int			 pc_npartners;
-	/**
-	 * Pointer to the array of partners' ptlrpcd_ctl structure.
-	 */
-	struct ptlrpcd_ctl	**pc_partners;
-	/**
-	 * Record the partner index to be processed next.
-	 */
-	int			 pc_cursor;
-};
-
-/* Bits for pc_flags */
-enum ptlrpcd_ctl_flags {
-	/**
-	 * Ptlrpc thread start flag.
-	 */
-	LIOD_START       = 1 << 0,
-	/**
-	 * Ptlrpc thread stop flag.
-	 */
-	LIOD_STOP	= 1 << 1,
-	/**
-	 * Ptlrpc thread force flag (only stop force so far).
-	 * This will cause aborting any inflight rpcs handled
-	 * by thread if LIOD_STOP is specified.
-	 */
-	LIOD_FORCE       = 1 << 2,
-	/**
-	 * This is a recovery ptlrpc thread.
-	 */
-	LIOD_RECOVERY    = 1 << 3,
-	/**
-	 * The ptlrpcd is bound to some CPU core.
-	 */
-	LIOD_BIND	= 1 << 4,
-};
-
-/**
- * \addtogroup nrs
- * @{
- *
- * Service compatibility function; the policy is compatible with all services.
- *
- * \param[in] svc  The service the policy is attempting to register with.
- * \param[in] desc The policy descriptor
- *
- * \retval true The policy is compatible with the service
- *
- * \see ptlrpc_nrs_pol_desc::pd_compat()
- */
-static inline bool nrs_policy_compat_all(const struct ptlrpc_service *svc,
-					 const struct ptlrpc_nrs_pol_desc *desc)
-{
-	return true;
-}
-
-/**
- * Service compatibility function; the policy is compatible with only a specific
- * service which is identified by its human-readable name at
- * ptlrpc_service::srv_name.
- *
- * \param[in] svc  The service the policy is attempting to register with.
- * \param[in] desc The policy descriptor
- *
- * \retval false The policy is not compatible with the service
- * \retval true	 The policy is compatible with the service
- *
- * \see ptlrpc_nrs_pol_desc::pd_compat()
- */
-static inline bool nrs_policy_compat_one(const struct ptlrpc_service *svc,
-					 const struct ptlrpc_nrs_pol_desc *desc)
-{
-	LASSERT(desc->pd_compat_svc_name != NULL);
-	return strcmp(svc->srv_name, desc->pd_compat_svc_name) == 0;
-}
-
-/** @} nrs */
-
-/* ptlrpc/events.c */
-extern lnet_handle_eq_t ptlrpc_eq_h;
-int ptlrpc_uuid_to_peer(struct obd_uuid *uuid,
-			lnet_process_id_t *peer, lnet_nid_t *self);
-/**
- * These callbacks are invoked by LNet when something happened to
- * underlying buffer
- * @{
- */
-void request_out_callback(lnet_event_t *ev);
-void reply_in_callback(lnet_event_t *ev);
-void client_bulk_callback(lnet_event_t *ev);
-void request_in_callback(lnet_event_t *ev);
-void reply_out_callback(lnet_event_t *ev);
-/** @} */
-
-/* ptlrpc/connection.c */
-struct ptlrpc_connection *ptlrpc_connection_get(lnet_process_id_t peer,
-						lnet_nid_t self,
-						struct obd_uuid *uuid);
-int ptlrpc_connection_put(struct ptlrpc_connection *c);
-struct ptlrpc_connection *ptlrpc_connection_addref(struct ptlrpc_connection *);
-int ptlrpc_connection_init(void);
-void ptlrpc_connection_fini(void);
-lnet_pid_t ptl_get_pid(void);
-
-/* ptlrpc/niobuf.c */
-/**
- * Actual interfacing with LNet to put/get/register/unregister stuff
- * @{
- */
-
-int ptlrpc_register_bulk(struct ptlrpc_request *req);
-int ptlrpc_unregister_bulk(struct ptlrpc_request *req, int async);
-
-static inline int ptlrpc_client_bulk_active(struct ptlrpc_request *req)
-{
-	struct ptlrpc_bulk_desc *desc;
-	int		      rc;
-
-	LASSERT(req != NULL);
-	desc = req->rq_bulk;
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_BULK_UNLINK) &&
-	    req->rq_bulk_deadline > get_seconds())
-		return 1;
-
-	if (!desc)
-		return 0;
-
-	spin_lock(&desc->bd_lock);
-	rc = desc->bd_md_count;
-	spin_unlock(&desc->bd_lock);
-	return rc;
-}
-
-#define PTLRPC_REPLY_MAYBE_DIFFICULT 0x01
-#define PTLRPC_REPLY_EARLY	   0x02
-int ptlrpc_send_reply(struct ptlrpc_request *req, int flags);
-int ptlrpc_reply(struct ptlrpc_request *req);
-int ptlrpc_send_error(struct ptlrpc_request *req, int difficult);
-int ptlrpc_error(struct ptlrpc_request *req);
-void ptlrpc_resend_req(struct ptlrpc_request *request);
-int ptlrpc_at_get_net_latency(struct ptlrpc_request *req);
-int ptl_send_rpc(struct ptlrpc_request *request, int noreply);
-int ptlrpc_register_rqbd(struct ptlrpc_request_buffer_desc *rqbd);
-/** @} */
-
-/* ptlrpc/client.c */
-/**
- * Client-side portals API. Everything to send requests, receive replies,
- * request queues, request management, etc.
- * @{
- */
-void ptlrpc_request_committed(struct ptlrpc_request *req, int force);
-
-void ptlrpc_init_client(int req_portal, int rep_portal, char *name,
-			struct ptlrpc_client *);
-void ptlrpc_cleanup_client(struct obd_import *imp);
-struct ptlrpc_connection *ptlrpc_uuid_to_connection(struct obd_uuid *uuid);
-
-int ptlrpc_queue_wait(struct ptlrpc_request *req);
-int ptlrpc_replay_req(struct ptlrpc_request *req);
-int ptlrpc_unregister_reply(struct ptlrpc_request *req, int async);
-void ptlrpc_restart_req(struct ptlrpc_request *req);
-void ptlrpc_abort_inflight(struct obd_import *imp);
-void ptlrpc_cleanup_imp(struct obd_import *imp);
-void ptlrpc_abort_set(struct ptlrpc_request_set *set);
-
-struct ptlrpc_request_set *ptlrpc_prep_set(void);
-struct ptlrpc_request_set *ptlrpc_prep_fcset(int max, set_producer_func func,
-					     void *arg);
-int ptlrpc_set_add_cb(struct ptlrpc_request_set *set,
-		      set_interpreter_func fn, void *data);
-int ptlrpc_set_next_timeout(struct ptlrpc_request_set *);
-int ptlrpc_check_set(const struct lu_env *env, struct ptlrpc_request_set *set);
-int ptlrpc_set_wait(struct ptlrpc_request_set *);
-int ptlrpc_expired_set(void *data);
-void ptlrpc_interrupted_set(void *data);
-void ptlrpc_mark_interrupted(struct ptlrpc_request *req);
-void ptlrpc_set_destroy(struct ptlrpc_request_set *);
-void ptlrpc_set_add_req(struct ptlrpc_request_set *, struct ptlrpc_request *);
-void ptlrpc_set_add_new_req(struct ptlrpcd_ctl *pc,
-			    struct ptlrpc_request *req);
-
-void ptlrpc_free_rq_pool(struct ptlrpc_request_pool *pool);
-void ptlrpc_add_rqs_to_pool(struct ptlrpc_request_pool *pool, int num_rq);
-
-struct ptlrpc_request_pool *
-ptlrpc_init_rq_pool(int, int,
-		    void (*populate_pool)(struct ptlrpc_request_pool *, int));
-
-void ptlrpc_at_set_req_timeout(struct ptlrpc_request *req);
-struct ptlrpc_request *ptlrpc_request_alloc(struct obd_import *imp,
-					    const struct req_format *format);
-struct ptlrpc_request *ptlrpc_request_alloc_pool(struct obd_import *imp,
-					    struct ptlrpc_request_pool *,
-					    const struct req_format *format);
-void ptlrpc_request_free(struct ptlrpc_request *request);
-int ptlrpc_request_pack(struct ptlrpc_request *request,
-			__u32 version, int opcode);
-struct ptlrpc_request *ptlrpc_request_alloc_pack(struct obd_import *imp,
-						const struct req_format *format,
-						__u32 version, int opcode);
-int ptlrpc_request_bufs_pack(struct ptlrpc_request *request,
-			     __u32 version, int opcode, char **bufs,
-			     struct ptlrpc_cli_ctx *ctx);
-struct ptlrpc_request *ptlrpc_prep_req(struct obd_import *imp, __u32 version,
-				       int opcode, int count, __u32 *lengths,
-				       char **bufs);
-struct ptlrpc_request *ptlrpc_prep_req_pool(struct obd_import *imp,
-					     __u32 version, int opcode,
-					    int count, __u32 *lengths, char **bufs,
-					    struct ptlrpc_request_pool *pool);
-void ptlrpc_req_finished(struct ptlrpc_request *request);
-void ptlrpc_req_finished_with_imp_lock(struct ptlrpc_request *request);
-struct ptlrpc_request *ptlrpc_request_addref(struct ptlrpc_request *req);
-struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_imp(struct ptlrpc_request *req,
-					      unsigned npages, unsigned max_brw,
-					      unsigned type, unsigned portal);
-void __ptlrpc_free_bulk(struct ptlrpc_bulk_desc *bulk, int pin);
-static inline void ptlrpc_free_bulk_pin(struct ptlrpc_bulk_desc *bulk)
-{
-	__ptlrpc_free_bulk(bulk, 1);
-}
-static inline void ptlrpc_free_bulk_nopin(struct ptlrpc_bulk_desc *bulk)
-{
-	__ptlrpc_free_bulk(bulk, 0);
-}
-void __ptlrpc_prep_bulk_page(struct ptlrpc_bulk_desc *desc,
-			     struct page *page, int pageoffset, int len, int);
-static inline void ptlrpc_prep_bulk_page_pin(struct ptlrpc_bulk_desc *desc,
-					     struct page *page, int pageoffset,
-					     int len)
-{
-	__ptlrpc_prep_bulk_page(desc, page, pageoffset, len, 1);
-}
-
-static inline void ptlrpc_prep_bulk_page_nopin(struct ptlrpc_bulk_desc *desc,
-					       struct page *page, int pageoffset,
-					       int len)
-{
-	__ptlrpc_prep_bulk_page(desc, page, pageoffset, len, 0);
-}
-
-void ptlrpc_retain_replayable_request(struct ptlrpc_request *req,
-				      struct obd_import *imp);
-__u64 ptlrpc_next_xid(void);
-__u64 ptlrpc_sample_next_xid(void);
-__u64 ptlrpc_req_xid(struct ptlrpc_request *request);
-
-/* Set of routines to run a function in ptlrpcd context */
-void *ptlrpcd_alloc_work(struct obd_import *imp,
-			 int (*cb)(const struct lu_env *, void *), void *data);
-void ptlrpcd_destroy_work(void *handler);
-int ptlrpcd_queue_work(void *handler);
-
-/** @} */
-struct ptlrpc_service_buf_conf {
-	/* nbufs is buffers # to allocate when growing the pool */
-	unsigned int			bc_nbufs;
-	/* buffer size to post */
-	unsigned int			bc_buf_size;
-	/* portal to listed for requests on */
-	unsigned int			bc_req_portal;
-	/* portal of where to send replies to */
-	unsigned int			bc_rep_portal;
-	/* maximum request size to be accepted for this service */
-	unsigned int			bc_req_max_size;
-	/* maximum reply size this service can ever send */
-	unsigned int			bc_rep_max_size;
-};
-
-struct ptlrpc_service_thr_conf {
-	/* threadname should be 8 characters or less - 6 will be added on */
-	char				*tc_thr_name;
-	/* threads increasing factor for each CPU */
-	unsigned int			tc_thr_factor;
-	/* service threads # to start on each partition while initializing */
-	unsigned int			tc_nthrs_init;
-	/*
-	 * low water of threads # upper-limit on each partition while running,
-	 * service availability may be impacted if threads number is lower
-	 * than this value. It can be ZERO if the service doesn't require
-	 * CPU affinity or there is only one partition.
-	 */
-	unsigned int			tc_nthrs_base;
-	/* "soft" limit for total threads number */
-	unsigned int			tc_nthrs_max;
-	/* user specified threads number, it will be validated due to
-	 * other members of this structure. */
-	unsigned int			tc_nthrs_user;
-	/* set NUMA node affinity for service threads */
-	unsigned int			tc_cpu_affinity;
-	/* Tags for lu_context associated with service thread */
-	__u32				tc_ctx_tags;
-};
-
-struct ptlrpc_service_cpt_conf {
-	struct cfs_cpt_table		*cc_cptable;
-	/* string pattern to describe CPTs for a service */
-	char				*cc_pattern;
-};
-
-struct ptlrpc_service_conf {
-	/* service name */
-	char				*psc_name;
-	/* soft watchdog timeout multiplifier to print stuck service traces */
-	unsigned int			psc_watchdog_factor;
-	/* buffer information */
-	struct ptlrpc_service_buf_conf	psc_buf;
-	/* thread information */
-	struct ptlrpc_service_thr_conf	psc_thr;
-	/* CPU partition information */
-	struct ptlrpc_service_cpt_conf	psc_cpt;
-	/* function table */
-	struct ptlrpc_service_ops	psc_ops;
-};
-
-/* ptlrpc/service.c */
-/**
- * Server-side services API. Register/unregister service, request state
- * management, service thread management
- *
- * @{
- */
-void ptlrpc_save_lock(struct ptlrpc_request *req,
-		      struct lustre_handle *lock, int mode, int no_ack);
-void ptlrpc_commit_replies(struct obd_export *exp);
-void ptlrpc_dispatch_difficult_reply(struct ptlrpc_reply_state *rs);
-void ptlrpc_schedule_difficult_reply(struct ptlrpc_reply_state *rs);
-int ptlrpc_hpreq_handler(struct ptlrpc_request *req);
-struct ptlrpc_service *ptlrpc_register_service(
-				struct ptlrpc_service_conf *conf,
-				struct kset *parent,
-				struct dentry *debugfs_entry);
-void ptlrpc_stop_all_threads(struct ptlrpc_service *svc);
-
-int ptlrpc_start_threads(struct ptlrpc_service *svc);
-int ptlrpc_unregister_service(struct ptlrpc_service *service);
-int liblustre_check_services(void *arg);
-void ptlrpc_daemonize(char *name);
-int ptlrpc_service_health_check(struct ptlrpc_service *);
-void ptlrpc_server_drop_request(struct ptlrpc_request *req);
-void ptlrpc_request_change_export(struct ptlrpc_request *req,
-				  struct obd_export *export);
-
-int ptlrpc_hr_init(void);
-void ptlrpc_hr_fini(void);
-
-/** @} */
-
-/* ptlrpc/import.c */
-/**
- * Import API
- * @{
- */
-int ptlrpc_connect_import(struct obd_import *imp);
-int ptlrpc_init_import(struct obd_import *imp);
-int ptlrpc_disconnect_import(struct obd_import *imp, int noclose);
-int ptlrpc_import_recovery_state_machine(struct obd_import *imp);
-void deuuidify(char *uuid, const char *prefix, char **uuid_start,
-	       int *uuid_len);
-
-/* ptlrpc/pack_generic.c */
-int ptlrpc_reconnect_import(struct obd_import *imp);
-/** @} */
-
-/**
- * ptlrpc msg buffer and swab interface
- *
- * @{
- */
-int ptlrpc_buf_need_swab(struct ptlrpc_request *req, const int inout,
-			 int index);
-void ptlrpc_buf_set_swabbed(struct ptlrpc_request *req, const int inout,
-				int index);
-int ptlrpc_unpack_rep_msg(struct ptlrpc_request *req, int len);
-int ptlrpc_unpack_req_msg(struct ptlrpc_request *req, int len);
-
-int lustre_msg_check_version(struct lustre_msg *msg, __u32 version);
-void lustre_init_msg_v2(struct lustre_msg_v2 *msg, int count, __u32 *lens,
-			char **bufs);
-int lustre_pack_request(struct ptlrpc_request *, __u32 magic, int count,
-			__u32 *lens, char **bufs);
-int lustre_pack_reply(struct ptlrpc_request *, int count, __u32 *lens,
-		      char **bufs);
-int lustre_pack_reply_v2(struct ptlrpc_request *req, int count,
-			 __u32 *lens, char **bufs, int flags);
-#define LPRFL_EARLY_REPLY 1
-int lustre_pack_reply_flags(struct ptlrpc_request *, int count, __u32 *lens,
-			    char **bufs, int flags);
-int lustre_shrink_msg(struct lustre_msg *msg, int segment,
-		      unsigned int newlen, int move_data);
-void lustre_free_reply_state(struct ptlrpc_reply_state *rs);
-int __lustre_unpack_msg(struct lustre_msg *m, int len);
-int lustre_msg_hdr_size(__u32 magic, int count);
-int lustre_msg_size(__u32 magic, int count, __u32 *lengths);
-int lustre_msg_size_v2(int count, __u32 *lengths);
-int lustre_packed_msg_size(struct lustre_msg *msg);
-int lustre_msg_early_size(void);
-void *lustre_msg_buf_v2(struct lustre_msg_v2 *m, int n, int min_size);
-void *lustre_msg_buf(struct lustre_msg *m, int n, int minlen);
-int lustre_msg_buflen(struct lustre_msg *m, int n);
-void lustre_msg_set_buflen(struct lustre_msg *m, int n, int len);
-int lustre_msg_bufcount(struct lustre_msg *m);
-char *lustre_msg_string(struct lustre_msg *m, int n, int max_len);
-__u32 lustre_msghdr_get_flags(struct lustre_msg *msg);
-void lustre_msghdr_set_flags(struct lustre_msg *msg, __u32 flags);
-__u32 lustre_msg_get_flags(struct lustre_msg *msg);
-void lustre_msg_add_flags(struct lustre_msg *msg, int flags);
-void lustre_msg_set_flags(struct lustre_msg *msg, int flags);
-void lustre_msg_clear_flags(struct lustre_msg *msg, int flags);
-__u32 lustre_msg_get_op_flags(struct lustre_msg *msg);
-void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags);
-void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags);
-struct lustre_handle *lustre_msg_get_handle(struct lustre_msg *msg);
-__u32 lustre_msg_get_type(struct lustre_msg *msg);
-__u32 lustre_msg_get_version(struct lustre_msg *msg);
-void lustre_msg_add_version(struct lustre_msg *msg, int version);
-__u32 lustre_msg_get_opc(struct lustre_msg *msg);
-__u64 lustre_msg_get_last_xid(struct lustre_msg *msg);
-__u64 lustre_msg_get_last_committed(struct lustre_msg *msg);
-__u64 *lustre_msg_get_versions(struct lustre_msg *msg);
-__u64 lustre_msg_get_transno(struct lustre_msg *msg);
-__u64 lustre_msg_get_slv(struct lustre_msg *msg);
-__u32 lustre_msg_get_limit(struct lustre_msg *msg);
-void lustre_msg_set_slv(struct lustre_msg *msg, __u64 slv);
-void lustre_msg_set_limit(struct lustre_msg *msg, __u64 limit);
-int lustre_msg_get_status(struct lustre_msg *msg);
-__u32 lustre_msg_get_conn_cnt(struct lustre_msg *msg);
-int lustre_msg_is_v1(struct lustre_msg *msg);
-__u32 lustre_msg_get_magic(struct lustre_msg *msg);
-__u32 lustre_msg_get_timeout(struct lustre_msg *msg);
-__u32 lustre_msg_get_service_time(struct lustre_msg *msg);
-char *lustre_msg_get_jobid(struct lustre_msg *msg);
-__u32 lustre_msg_get_cksum(struct lustre_msg *msg);
-__u32 lustre_msg_calc_cksum(struct lustre_msg *msg);
-void lustre_msg_set_handle(struct lustre_msg *msg,
-			   struct lustre_handle *handle);
-void lustre_msg_set_type(struct lustre_msg *msg, __u32 type);
-void lustre_msg_set_opc(struct lustre_msg *msg, __u32 opc);
-void lustre_msg_set_last_xid(struct lustre_msg *msg, __u64 last_xid);
-void lustre_msg_set_last_committed(struct lustre_msg *msg,
-				   __u64 last_committed);
-void lustre_msg_set_versions(struct lustre_msg *msg, __u64 *versions);
-void lustre_msg_set_transno(struct lustre_msg *msg, __u64 transno);
-void lustre_msg_set_status(struct lustre_msg *msg, __u32 status);
-void lustre_msg_set_conn_cnt(struct lustre_msg *msg, __u32 conn_cnt);
-void ptlrpc_req_set_repsize(struct ptlrpc_request *req, int count, __u32 *sizes);
-void ptlrpc_request_set_replen(struct ptlrpc_request *req);
-void lustre_msg_set_timeout(struct lustre_msg *msg, __u32 timeout);
-void lustre_msg_set_service_time(struct lustre_msg *msg, __u32 service_time);
-void lustre_msg_set_jobid(struct lustre_msg *msg, char *jobid);
-void lustre_msg_set_cksum(struct lustre_msg *msg, __u32 cksum);
-
-static inline void
-lustre_shrink_reply(struct ptlrpc_request *req, int segment,
-		    unsigned int newlen, int move_data)
-{
-	LASSERT(req->rq_reply_state);
-	LASSERT(req->rq_repmsg);
-	req->rq_replen = lustre_shrink_msg(req->rq_repmsg, segment,
-					   newlen, move_data);
-}
-
-#ifdef CONFIG_LUSTRE_TRANSLATE_ERRNOS
-
-static inline int ptlrpc_status_hton(int h)
-{
-	/*
-	 * Positive errnos must be network errnos, such as LUSTRE_EDEADLK,
-	 * ELDLM_LOCK_ABORTED, etc.
-	 */
-	if (h < 0)
-		return -lustre_errno_hton(-h);
-	else
-		return h;
-}
-
-static inline int ptlrpc_status_ntoh(int n)
-{
-	/*
-	 * See the comment in ptlrpc_status_hton().
-	 */
-	if (n < 0)
-		return -lustre_errno_ntoh(-n);
-	else
-		return n;
-}
-
-#else
-
-#define ptlrpc_status_hton(h) (h)
-#define ptlrpc_status_ntoh(n) (n)
-
-#endif
-/** @} */
-
-/** Change request phase of \a req to \a new_phase */
-static inline void
-ptlrpc_rqphase_move(struct ptlrpc_request *req, enum rq_phase new_phase)
-{
-	if (req->rq_phase == new_phase)
-		return;
-
-	if (new_phase == RQ_PHASE_UNREGISTERING) {
-		req->rq_next_phase = req->rq_phase;
-		if (req->rq_import)
-			atomic_inc(&req->rq_import->imp_unregistering);
-	}
-
-	if (req->rq_phase == RQ_PHASE_UNREGISTERING) {
-		if (req->rq_import)
-			atomic_dec(&req->rq_import->imp_unregistering);
-	}
-
-	DEBUG_REQ(D_INFO, req, "move req \"%s\" -> \"%s\"",
-		  ptlrpc_rqphase2str(req), ptlrpc_phase2str(new_phase));
-
-	req->rq_phase = new_phase;
-}
-
-/**
- * Returns true if request \a req got early reply and hard deadline is not met
- */
-static inline int
-ptlrpc_client_early(struct ptlrpc_request *req)
-{
-	if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
-	    req->rq_reply_deadline > get_seconds())
-		return 0;
-	return req->rq_early;
-}
-
-/**
- * Returns true if we got real reply from server for this request
- */
-static inline int
-ptlrpc_client_replied(struct ptlrpc_request *req)
-{
-	if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
-	    req->rq_reply_deadline > get_seconds())
-		return 0;
-	return req->rq_replied;
-}
-
-/** Returns true if request \a req is in process of receiving server reply */
-static inline int
-ptlrpc_client_recv(struct ptlrpc_request *req)
-{
-	if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
-	    req->rq_reply_deadline > get_seconds())
-		return 1;
-	return req->rq_receiving_reply;
-}
-
-static inline int
-ptlrpc_client_recv_or_unlink(struct ptlrpc_request *req)
-{
-	int rc;
-
-	spin_lock(&req->rq_lock);
-	if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
-	    req->rq_reply_deadline > get_seconds()) {
-		spin_unlock(&req->rq_lock);
-		return 1;
-	}
-	rc = req->rq_receiving_reply;
-	rc = rc || req->rq_req_unlink || req->rq_reply_unlink;
-	spin_unlock(&req->rq_lock);
-	return rc;
-}
-
-static inline void
-ptlrpc_client_wake_req(struct ptlrpc_request *req)
-{
-	if (req->rq_set == NULL)
-		wake_up(&req->rq_reply_waitq);
-	else
-		wake_up(&req->rq_set->set_waitq);
-}
-
-static inline void
-ptlrpc_rs_addref(struct ptlrpc_reply_state *rs)
-{
-	LASSERT(atomic_read(&rs->rs_refcount) > 0);
-	atomic_inc(&rs->rs_refcount);
-}
-
-static inline void
-ptlrpc_rs_decref(struct ptlrpc_reply_state *rs)
-{
-	LASSERT(atomic_read(&rs->rs_refcount) > 0);
-	if (atomic_dec_and_test(&rs->rs_refcount))
-		lustre_free_reply_state(rs);
-}
-
-/* Should only be called once per req */
-static inline void ptlrpc_req_drop_rs(struct ptlrpc_request *req)
-{
-	if (req->rq_reply_state == NULL)
-		return; /* shouldn't occur */
-	ptlrpc_rs_decref(req->rq_reply_state);
-	req->rq_reply_state = NULL;
-	req->rq_repmsg = NULL;
-}
-
-static inline __u32 lustre_request_magic(struct ptlrpc_request *req)
-{
-	return lustre_msg_get_magic(req->rq_reqmsg);
-}
-
-static inline int ptlrpc_req_get_repsize(struct ptlrpc_request *req)
-{
-	switch (req->rq_reqmsg->lm_magic) {
-	case LUSTRE_MSG_MAGIC_V2:
-		return req->rq_reqmsg->lm_repsize;
-	default:
-		LASSERTF(0, "incorrect message magic: %08x\n",
-			 req->rq_reqmsg->lm_magic);
-		return -EFAULT;
-	}
-}
-
-static inline int ptlrpc_send_limit_expired(struct ptlrpc_request *req)
-{
-	if (req->rq_delay_limit != 0 &&
-	    time_before(cfs_time_add(req->rq_queued_time,
-				     cfs_time_seconds(req->rq_delay_limit)),
-			cfs_time_current())) {
-		return 1;
-	}
-	return 0;
-}
-
-static inline int ptlrpc_no_resend(struct ptlrpc_request *req)
-{
-	if (!req->rq_no_resend && ptlrpc_send_limit_expired(req)) {
-		spin_lock(&req->rq_lock);
-		req->rq_no_resend = 1;
-		spin_unlock(&req->rq_lock);
-	}
-	return req->rq_no_resend;
-}
-
-static inline int
-ptlrpc_server_get_timeout(struct ptlrpc_service_part *svcpt)
-{
-	int at = AT_OFF ? 0 : at_get(&svcpt->scp_at_estimate);
-
-	return svcpt->scp_service->srv_watchdog_factor *
-	       max_t(int, at, obd_timeout);
-}
-
-static inline struct ptlrpc_service *
-ptlrpc_req2svc(struct ptlrpc_request *req)
-{
-	LASSERT(req->rq_rqbd != NULL);
-	return req->rq_rqbd->rqbd_svcpt->scp_service;
-}
-
-/* ldlm/ldlm_lib.c */
-/**
- * Target client logic
- * @{
- */
-int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg);
-int client_obd_cleanup(struct obd_device *obddev);
-int client_connect_import(const struct lu_env *env,
-			  struct obd_export **exp, struct obd_device *obd,
-			  struct obd_uuid *cluuid, struct obd_connect_data *,
-			  void *localdata);
-int client_disconnect_export(struct obd_export *exp);
-int client_import_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
-			   int priority);
-int client_import_del_conn(struct obd_import *imp, struct obd_uuid *uuid);
-int client_import_find_conn(struct obd_import *imp, lnet_nid_t peer,
-			    struct obd_uuid *uuid);
-int import_set_conn_priority(struct obd_import *imp, struct obd_uuid *uuid);
-void client_destroy_import(struct obd_import *imp);
-/** @} */
-
-
-/* ptlrpc/pinger.c */
-/**
- * Pinger API (client side only)
- * @{
- */
-enum timeout_event {
-	TIMEOUT_GRANT = 1
-};
-struct timeout_item;
-typedef int (*timeout_cb_t)(struct timeout_item *, void *);
-int ptlrpc_pinger_add_import(struct obd_import *imp);
-int ptlrpc_pinger_del_import(struct obd_import *imp);
-int ptlrpc_add_timeout_client(int time, enum timeout_event event,
-			      timeout_cb_t cb, void *data,
-			      struct list_head *obd_list);
-int ptlrpc_del_timeout_client(struct list_head *obd_list,
-			      enum timeout_event event);
-struct ptlrpc_request *ptlrpc_prep_ping(struct obd_import *imp);
-int ptlrpc_obd_ping(struct obd_device *obd);
-void ping_evictor_start(void);
-void ping_evictor_stop(void);
-void ptlrpc_pinger_ir_up(void);
-void ptlrpc_pinger_ir_down(void);
-/** @} */
-int ptlrpc_pinger_suppress_pings(void);
-
-/* ptlrpc daemon bind policy */
-typedef enum {
-	/* all ptlrpcd threads are free mode */
-	PDB_POLICY_NONE	  = 1,
-	/* all ptlrpcd threads are bound mode */
-	PDB_POLICY_FULL	  = 2,
-	/* <free1 bound1> <free2 bound2> ... <freeN boundN> */
-	PDB_POLICY_PAIR	  = 3,
-	/* <free1 bound1> <bound1 free2> ... <freeN boundN> <boundN free1>,
-	 * means each ptlrpcd[X] has two partners: thread[X-1] and thread[X+1].
-	 * If kernel supports NUMA, pthrpcd threads are binded and
-	 * grouped by NUMA node */
-	PDB_POLICY_NEIGHBOR      = 4,
-} pdb_policy_t;
-
-/* ptlrpc daemon load policy
- * It is caller's duty to specify how to push the async RPC into some ptlrpcd
- * queue, but it is not enforced, affected by "ptlrpcd_bind_policy". If it is
- * "PDB_POLICY_FULL", then the RPC will be processed by the selected ptlrpcd,
- * Otherwise, the RPC may be processed by the selected ptlrpcd or its partner,
- * depends on which is scheduled firstly, to accelerate the RPC processing. */
-typedef enum {
-	/* on the same CPU core as the caller */
-	PDL_POLICY_SAME	 = 1,
-	/* within the same CPU partition, but not the same core as the caller */
-	PDL_POLICY_LOCAL	= 2,
-	/* round-robin on all CPU cores, but not the same core as the caller */
-	PDL_POLICY_ROUND	= 3,
-	/* the specified CPU core is preferred, but not enforced */
-	PDL_POLICY_PREFERRED    = 4,
-} pdl_policy_t;
-
-/* ptlrpc/ptlrpcd.c */
-void ptlrpcd_stop(struct ptlrpcd_ctl *pc, int force);
-void ptlrpcd_free(struct ptlrpcd_ctl *pc);
-void ptlrpcd_wake(struct ptlrpc_request *req);
-void ptlrpcd_add_req(struct ptlrpc_request *req, pdl_policy_t policy, int idx);
-void ptlrpcd_add_rqset(struct ptlrpc_request_set *set);
-int ptlrpcd_addref(void);
-void ptlrpcd_decref(void);
-
-/* ptlrpc/lproc_ptlrpc.c */
-/**
- * procfs output related functions
- * @{
- */
-const char *ll_opcode2str(__u32 opcode);
-void ptlrpc_lprocfs_register_obd(struct obd_device *obd);
-void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd);
-void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes);
-/** @} */
-
-/* ptlrpc/llog_client.c */
-extern struct llog_operations llog_client_ops;
-
-/** @} net */
-
-#endif
-/** @} PtlRPC */
diff --git a/drivers/staging/lustre/lustre/include/lustre_param.h b/drivers/staging/lustre/lustre/include/lustre_param.h
deleted file mode 100644
index ed654684cb64..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_param.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_param.h
- *
- * User-settable parameter keys
- *
- * Author: Nathan Rutman <nathan@clusterfs.com>
- */
-
-#ifndef _LUSTRE_PARAM_H
-#define _LUSTRE_PARAM_H
-
-/** \defgroup param param
- *
- * @{
- */
-
-/* For interoperability */
-struct cfg_interop_param {
-	char *old_param;
-	char *new_param;
-};
-
-/* obd_config.c */
-int class_find_param(char *buf, char *key, char **valp);
-struct cfg_interop_param *class_find_old_param(const char *param,
-					       struct cfg_interop_param *ptr);
-int class_get_next_param(char **params, char *copy);
-int class_match_param(char *buf, char *key, char **valp);
-int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh);
-int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh);
-int class_parse_net(char *buf, __u32 *net, char **endh);
-int class_match_nid(char *buf, char *key, lnet_nid_t nid);
-int class_match_net(char *buf, char *key, __u32 net);
-/* obd_mount.c */
-int do_lcfg(char *cfgname, lnet_nid_t nid, int cmd,
-	    char *s1, char *s2, char *s3, char *s4);
-
-
-
-/****************** User-settable parameter keys *********************/
-/* e.g.
-	tunefs.lustre --param="failover.node=192.168.0.13@tcp0" /dev/sda
-	lctl conf_param testfs-OST0000 failover.node=3@elan,192.168.0.3@tcp0
-		    ... testfs-MDT0000.lov.stripesize=4M
-		    ... testfs-OST0000.ost.client_cache_seconds=15
-		    ... testfs.sys.timeout=<secs>
-		    ... testfs.llite.max_read_ahead_mb=16
-*/
-
-/* System global or special params not handled in obd's proc
- * See mgs_write_log_sys()
- */
-#define PARAM_TIMEOUT	      "timeout="	  /* global */
-#define PARAM_LDLM_TIMEOUT	 "ldlm_timeout="     /* global */
-#define PARAM_AT_MIN	       "at_min="	   /* global */
-#define PARAM_AT_MAX	       "at_max="	   /* global */
-#define PARAM_AT_EXTRA	     "at_extra="	 /* global */
-#define PARAM_AT_EARLY_MARGIN      "at_early_margin="  /* global */
-#define PARAM_AT_HISTORY	   "at_history="       /* global */
-#define PARAM_JOBID_VAR		   "jobid_var="	       /* global */
-#define PARAM_MGSNODE	      "mgsnode="	  /* only at mounttime */
-#define PARAM_FAILNODE	     "failover.node="    /* add failover nid */
-#define PARAM_FAILMODE	     "failover.mode="    /* initial mount only */
-#define PARAM_ACTIVE	       "active="	   /* activate/deactivate */
-#define PARAM_NETWORK	      "network="	  /* bind on nid */
-#define PARAM_ID_UPCALL		"identity_upcall="  /* identity upcall */
-
-/* Prefixes for parameters handled by obd's proc methods (XXX_process_config) */
-#define PARAM_OST		  "ost."
-#define PARAM_OSC		  "osc."
-#define PARAM_MDT		  "mdt."
-#define PARAM_MDD		  "mdd."
-#define PARAM_MDC		  "mdc."
-#define PARAM_LLITE		"llite."
-#define PARAM_LOV		  "lov."
-#define PARAM_LOD		"lod."
-#define PARAM_OSP		"osp."
-#define PARAM_SYS		  "sys."	      /* global */
-#define PARAM_SRPC		 "srpc."
-#define PARAM_SRPC_FLVR	    "srpc.flavor."
-#define PARAM_SRPC_UDESC	   "srpc.udesc.cli2mdt"
-#define PARAM_SEC		  "security."
-#define PARAM_QUOTA		"quota."	    /* global */
-
-/** @} param */
-
-#endif /* _LUSTRE_PARAM_H */
diff --git a/drivers/staging/lustre/lustre/include/lustre_req_layout.h b/drivers/staging/lustre/lustre/include/lustre_req_layout.h
deleted file mode 100644
index c6457b27c4e7..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_req_layout.h
+++ /dev/null
@@ -1,341 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/include/lustre_req_layout.h
- *
- * Lustre Metadata Target (mdt) request handler
- *
- * Author: Nikita Danilov <nikita@clusterfs.com>
- */
-
-#ifndef _LUSTRE_REQ_LAYOUT_H__
-#define _LUSTRE_REQ_LAYOUT_H__
-
-/** \defgroup req_layout req_layout
- *
- * @{
- */
-
-struct req_msg_field;
-struct req_format;
-struct req_capsule;
-
-struct ptlrpc_request;
-
-enum req_location {
-	RCL_CLIENT,
-	RCL_SERVER,
-	RCL_NR
-};
-
-/* Maximal number of fields (buffers) in a request message. */
-#define REQ_MAX_FIELD_NR  9
-
-struct req_capsule {
-	struct ptlrpc_request   *rc_req;
-	const struct req_format *rc_fmt;
-	enum req_location	rc_loc;
-	__u32		    rc_area[RCL_NR][REQ_MAX_FIELD_NR];
-};
-
-#if !defined(__REQ_LAYOUT_USER__)
-
-/* struct ptlrpc_request, lustre_msg* */
-#include "lustre_net.h"
-
-void req_capsule_init(struct req_capsule *pill, struct ptlrpc_request *req,
-		      enum req_location location);
-void req_capsule_fini(struct req_capsule *pill);
-
-void req_capsule_set(struct req_capsule *pill, const struct req_format *fmt);
-void req_capsule_client_dump(struct req_capsule *pill);
-void req_capsule_server_dump(struct req_capsule *pill);
-void req_capsule_init_area(struct req_capsule *pill);
-int req_capsule_filled_sizes(struct req_capsule *pill, enum req_location loc);
-int  req_capsule_server_pack(struct req_capsule *pill);
-
-void *req_capsule_client_get(struct req_capsule *pill,
-			     const struct req_msg_field *field);
-void *req_capsule_client_swab_get(struct req_capsule *pill,
-				  const struct req_msg_field *field,
-				  void *swabber);
-void *req_capsule_client_sized_get(struct req_capsule *pill,
-				   const struct req_msg_field *field,
-				   int len);
-void *req_capsule_server_get(struct req_capsule *pill,
-			     const struct req_msg_field *field);
-void *req_capsule_server_sized_get(struct req_capsule *pill,
-				   const struct req_msg_field *field,
-				   int len);
-void *req_capsule_server_swab_get(struct req_capsule *pill,
-				  const struct req_msg_field *field,
-				  void *swabber);
-void *req_capsule_server_sized_swab_get(struct req_capsule *pill,
-					const struct req_msg_field *field,
-					int len, void *swabber);
-const void *req_capsule_other_get(struct req_capsule *pill,
-				  const struct req_msg_field *field);
-
-void req_capsule_set_size(struct req_capsule *pill,
-			  const struct req_msg_field *field,
-			  enum req_location loc, int size);
-int req_capsule_get_size(const struct req_capsule *pill,
-			  const struct req_msg_field *field,
-			  enum req_location loc);
-int req_capsule_msg_size(struct req_capsule *pill, enum req_location loc);
-int req_capsule_fmt_size(__u32 magic, const struct req_format *fmt,
-			 enum req_location loc);
-void req_capsule_extend(struct req_capsule *pill, const struct req_format *fmt);
-
-int req_capsule_has_field(const struct req_capsule *pill,
-			  const struct req_msg_field *field,
-			  enum req_location loc);
-int req_capsule_field_present(const struct req_capsule *pill,
-			      const struct req_msg_field *field,
-			      enum req_location loc);
-void req_capsule_shrink(struct req_capsule *pill,
-			const struct req_msg_field *field,
-			unsigned int newlen,
-			enum req_location loc);
-int req_capsule_server_grow(struct req_capsule *pill,
-			    const struct req_msg_field *field,
-			    unsigned int newlen);
-int  req_layout_init(void);
-void req_layout_fini(void);
-
-/* __REQ_LAYOUT_USER__ */
-#endif
-
-extern struct req_format RQF_OBD_PING;
-extern struct req_format RQF_OBD_SET_INFO;
-extern struct req_format RQF_SEC_CTX;
-extern struct req_format RQF_OBD_IDX_READ;
-/* MGS req_format */
-extern struct req_format RQF_MGS_TARGET_REG;
-extern struct req_format RQF_MGS_SET_INFO;
-extern struct req_format RQF_MGS_CONFIG_READ;
-/* fid/fld req_format */
-extern struct req_format RQF_SEQ_QUERY;
-extern struct req_format RQF_FLD_QUERY;
-/* MDS req_format */
-extern struct req_format RQF_MDS_CONNECT;
-extern struct req_format RQF_MDS_DISCONNECT;
-extern struct req_format RQF_MDS_STATFS;
-extern struct req_format RQF_MDS_GETSTATUS;
-extern struct req_format RQF_MDS_SYNC;
-extern struct req_format RQF_MDS_GETXATTR;
-extern struct req_format RQF_MDS_GETATTR;
-extern struct req_format RQF_UPDATE_OBJ;
-
-/*
- * This is format of direct (non-intent) MDS_GETATTR_NAME request.
- */
-extern struct req_format RQF_MDS_GETATTR_NAME;
-extern struct req_format RQF_MDS_CLOSE;
-extern struct req_format RQF_MDS_RELEASE_CLOSE;
-extern struct req_format RQF_MDS_PIN;
-extern struct req_format RQF_MDS_UNPIN;
-extern struct req_format RQF_MDS_CONNECT;
-extern struct req_format RQF_MDS_DISCONNECT;
-extern struct req_format RQF_MDS_GET_INFO;
-extern struct req_format RQF_MDS_READPAGE;
-extern struct req_format RQF_MDS_WRITEPAGE;
-extern struct req_format RQF_MDS_IS_SUBDIR;
-extern struct req_format RQF_MDS_DONE_WRITING;
-extern struct req_format RQF_MDS_REINT;
-extern struct req_format RQF_MDS_REINT_CREATE;
-extern struct req_format RQF_MDS_REINT_CREATE_RMT_ACL;
-extern struct req_format RQF_MDS_REINT_CREATE_SLAVE;
-extern struct req_format RQF_MDS_REINT_CREATE_SYM;
-extern struct req_format RQF_MDS_REINT_OPEN;
-extern struct req_format RQF_MDS_REINT_UNLINK;
-extern struct req_format RQF_MDS_REINT_LINK;
-extern struct req_format RQF_MDS_REINT_RENAME;
-extern struct req_format RQF_MDS_REINT_SETATTR;
-extern struct req_format RQF_MDS_REINT_SETXATTR;
-extern struct req_format RQF_MDS_QUOTACHECK;
-extern struct req_format RQF_MDS_QUOTACTL;
-extern struct req_format RQF_QC_CALLBACK;
-extern struct req_format RQF_QUOTA_DQACQ;
-extern struct req_format RQF_MDS_SWAP_LAYOUTS;
-/* MDS hsm formats */
-extern struct req_format RQF_MDS_HSM_STATE_GET;
-extern struct req_format RQF_MDS_HSM_STATE_SET;
-extern struct req_format RQF_MDS_HSM_ACTION;
-extern struct req_format RQF_MDS_HSM_PROGRESS;
-extern struct req_format RQF_MDS_HSM_CT_REGISTER;
-extern struct req_format RQF_MDS_HSM_CT_UNREGISTER;
-extern struct req_format RQF_MDS_HSM_REQUEST;
-/* OST req_format */
-extern struct req_format RQF_OST_CONNECT;
-extern struct req_format RQF_OST_DISCONNECT;
-extern struct req_format RQF_OST_QUOTACHECK;
-extern struct req_format RQF_OST_QUOTACTL;
-extern struct req_format RQF_OST_GETATTR;
-extern struct req_format RQF_OST_SETATTR;
-extern struct req_format RQF_OST_CREATE;
-extern struct req_format RQF_OST_PUNCH;
-extern struct req_format RQF_OST_SYNC;
-extern struct req_format RQF_OST_DESTROY;
-extern struct req_format RQF_OST_BRW_READ;
-extern struct req_format RQF_OST_BRW_WRITE;
-extern struct req_format RQF_OST_STATFS;
-extern struct req_format RQF_OST_SET_GRANT_INFO;
-extern struct req_format RQF_OST_GET_INFO_GENERIC;
-extern struct req_format RQF_OST_GET_INFO_LAST_ID;
-extern struct req_format RQF_OST_GET_INFO_LAST_FID;
-extern struct req_format RQF_OST_SET_INFO_LAST_FID;
-extern struct req_format RQF_OST_GET_INFO_FIEMAP;
-
-/* LDLM req_format */
-extern struct req_format RQF_LDLM_ENQUEUE;
-extern struct req_format RQF_LDLM_ENQUEUE_LVB;
-extern struct req_format RQF_LDLM_CONVERT;
-extern struct req_format RQF_LDLM_INTENT;
-extern struct req_format RQF_LDLM_INTENT_BASIC;
-extern struct req_format RQF_LDLM_INTENT_LAYOUT;
-extern struct req_format RQF_LDLM_INTENT_GETATTR;
-extern struct req_format RQF_LDLM_INTENT_OPEN;
-extern struct req_format RQF_LDLM_INTENT_CREATE;
-extern struct req_format RQF_LDLM_INTENT_UNLINK;
-extern struct req_format RQF_LDLM_INTENT_GETXATTR;
-extern struct req_format RQF_LDLM_INTENT_QUOTA;
-extern struct req_format RQF_LDLM_CANCEL;
-extern struct req_format RQF_LDLM_CALLBACK;
-extern struct req_format RQF_LDLM_CP_CALLBACK;
-extern struct req_format RQF_LDLM_BL_CALLBACK;
-extern struct req_format RQF_LDLM_GL_CALLBACK;
-extern struct req_format RQF_LDLM_GL_DESC_CALLBACK;
-/* LOG req_format */
-extern struct req_format RQF_LOG_CANCEL;
-extern struct req_format RQF_LLOG_ORIGIN_HANDLE_CREATE;
-extern struct req_format RQF_LLOG_ORIGIN_HANDLE_DESTROY;
-extern struct req_format RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK;
-extern struct req_format RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK;
-extern struct req_format RQF_LLOG_ORIGIN_HANDLE_READ_HEADER;
-extern struct req_format RQF_LLOG_ORIGIN_CONNECT;
-
-extern struct req_format RQF_CONNECT;
-
-extern struct req_msg_field RMF_GENERIC_DATA;
-extern struct req_msg_field RMF_PTLRPC_BODY;
-extern struct req_msg_field RMF_MDT_BODY;
-extern struct req_msg_field RMF_MDT_EPOCH;
-extern struct req_msg_field RMF_OBD_STATFS;
-extern struct req_msg_field RMF_NAME;
-extern struct req_msg_field RMF_SYMTGT;
-extern struct req_msg_field RMF_TGTUUID;
-extern struct req_msg_field RMF_CLUUID;
-extern struct req_msg_field RMF_SETINFO_VAL;
-extern struct req_msg_field RMF_SETINFO_KEY;
-extern struct req_msg_field RMF_GETINFO_VAL;
-extern struct req_msg_field RMF_GETINFO_VALLEN;
-extern struct req_msg_field RMF_GETINFO_KEY;
-extern struct req_msg_field RMF_IDX_INFO;
-extern struct req_msg_field RMF_CLOSE_DATA;
-
-/*
- * connection handle received in MDS_CONNECT request.
- */
-extern struct req_msg_field RMF_CONN;
-extern struct req_msg_field RMF_CONNECT_DATA;
-extern struct req_msg_field RMF_DLM_REQ;
-extern struct req_msg_field RMF_DLM_REP;
-extern struct req_msg_field RMF_DLM_LVB;
-extern struct req_msg_field RMF_DLM_GL_DESC;
-extern struct req_msg_field RMF_LDLM_INTENT;
-extern struct req_msg_field RMF_LAYOUT_INTENT;
-extern struct req_msg_field RMF_MDT_MD;
-extern struct req_msg_field RMF_REC_REINT;
-extern struct req_msg_field RMF_EADATA;
-extern struct req_msg_field RMF_EAVALS;
-extern struct req_msg_field RMF_EAVALS_LENS;
-extern struct req_msg_field RMF_ACL;
-extern struct req_msg_field RMF_LOGCOOKIES;
-extern struct req_msg_field RMF_CAPA1;
-extern struct req_msg_field RMF_CAPA2;
-extern struct req_msg_field RMF_OBD_QUOTACHECK;
-extern struct req_msg_field RMF_OBD_QUOTACTL;
-extern struct req_msg_field RMF_QUOTA_BODY;
-extern struct req_msg_field RMF_STRING;
-extern struct req_msg_field RMF_SWAP_LAYOUTS;
-extern struct req_msg_field RMF_MDS_HSM_PROGRESS;
-extern struct req_msg_field RMF_MDS_HSM_REQUEST;
-extern struct req_msg_field RMF_MDS_HSM_USER_ITEM;
-extern struct req_msg_field RMF_MDS_HSM_ARCHIVE;
-extern struct req_msg_field RMF_HSM_USER_STATE;
-extern struct req_msg_field RMF_HSM_STATE_SET;
-extern struct req_msg_field RMF_MDS_HSM_CURRENT_ACTION;
-extern struct req_msg_field RMF_MDS_HSM_REQUEST;
-
-/* seq-mgr fields */
-extern struct req_msg_field RMF_SEQ_OPC;
-extern struct req_msg_field RMF_SEQ_RANGE;
-extern struct req_msg_field RMF_FID_SPACE;
-
-/* FLD fields */
-extern struct req_msg_field RMF_FLD_OPC;
-extern struct req_msg_field RMF_FLD_MDFLD;
-
-extern struct req_msg_field RMF_LLOGD_BODY;
-extern struct req_msg_field RMF_LLOG_LOG_HDR;
-extern struct req_msg_field RMF_LLOGD_CONN_BODY;
-
-extern struct req_msg_field RMF_MGS_TARGET_INFO;
-extern struct req_msg_field RMF_MGS_SEND_PARAM;
-
-extern struct req_msg_field RMF_OST_BODY;
-extern struct req_msg_field RMF_OBD_IOOBJ;
-extern struct req_msg_field RMF_OBD_ID;
-extern struct req_msg_field RMF_FID;
-extern struct req_msg_field RMF_NIOBUF_REMOTE;
-extern struct req_msg_field RMF_RCS;
-extern struct req_msg_field RMF_FIEMAP_KEY;
-extern struct req_msg_field RMF_FIEMAP_VAL;
-extern struct req_msg_field RMF_OST_ID;
-
-/* MGS config read message format */
-extern struct req_msg_field RMF_MGS_CONFIG_BODY;
-extern struct req_msg_field RMF_MGS_CONFIG_RES;
-
-/* generic uint32 */
-extern struct req_msg_field RMF_U32;
-
-/* OBJ update format */
-extern struct req_msg_field RMF_UPDATE;
-extern struct req_msg_field RMF_UPDATE_REPLY;
-/** @} req_layout */
-
-#endif /* _LUSTRE_REQ_LAYOUT_H__ */
diff --git a/drivers/staging/lustre/lustre/include/lustre_sec.h b/drivers/staging/lustre/lustre/include/lustre_sec.h
deleted file mode 100644
index 707ff69717c6..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_sec.h
+++ /dev/null
@@ -1,1139 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LUSTRE_SEC_H_
-#define _LUSTRE_SEC_H_
-
-/** \defgroup sptlrpc sptlrpc
- *
- * @{
- */
-
-/*
- * to avoid include
- */
-struct obd_import;
-struct obd_export;
-struct ptlrpc_request;
-struct ptlrpc_reply_state;
-struct ptlrpc_bulk_desc;
-struct brw_page;
-/* Linux specific */
-struct key;
-struct seq_file;
-
-/*
- * forward declaration
- */
-struct ptlrpc_sec_policy;
-struct ptlrpc_sec_cops;
-struct ptlrpc_sec_sops;
-struct ptlrpc_sec;
-struct ptlrpc_svc_ctx;
-struct ptlrpc_cli_ctx;
-struct ptlrpc_ctx_ops;
-
-/**
- * \addtogroup flavor flavor
- *
- * RPC flavor is represented by a 32 bits integer. Currently the high 12 bits
- * are unused, must be set to 0 for future expansion.
- * <pre>
- * ------------------------------------------------------------------------
- * | 4b (bulk svc) | 4b (bulk type) | 4b (svc) | 4b (mech)  | 4b (policy) |
- * ------------------------------------------------------------------------
- * </pre>
- *
- * @{
- */
-
-/*
- * flavor constants
- */
-enum sptlrpc_policy {
-	SPTLRPC_POLICY_NULL	     = 0,
-	SPTLRPC_POLICY_PLAIN	    = 1,
-	SPTLRPC_POLICY_GSS	      = 2,
-	SPTLRPC_POLICY_MAX,
-};
-
-enum sptlrpc_mech_null {
-	SPTLRPC_MECH_NULL	       = 0,
-	SPTLRPC_MECH_NULL_MAX,
-};
-
-enum sptlrpc_mech_plain {
-	SPTLRPC_MECH_PLAIN	      = 0,
-	SPTLRPC_MECH_PLAIN_MAX,
-};
-
-enum sptlrpc_mech_gss {
-	SPTLRPC_MECH_GSS_NULL	   = 0,
-	SPTLRPC_MECH_GSS_KRB5	   = 1,
-	SPTLRPC_MECH_GSS_MAX,
-};
-
-enum sptlrpc_service_type {
-	SPTLRPC_SVC_NULL		= 0,    /**< no security */
-	SPTLRPC_SVC_AUTH		= 1,    /**< authentication only */
-	SPTLRPC_SVC_INTG		= 2,    /**< integrity */
-	SPTLRPC_SVC_PRIV		= 3,    /**< privacy */
-	SPTLRPC_SVC_MAX,
-};
-
-enum sptlrpc_bulk_type {
-	SPTLRPC_BULK_DEFAULT	    = 0,    /**< follow rpc flavor */
-	SPTLRPC_BULK_HASH	       = 1,    /**< hash integrity */
-	SPTLRPC_BULK_MAX,
-};
-
-enum sptlrpc_bulk_service {
-	SPTLRPC_BULK_SVC_NULL	   = 0,    /**< no security */
-	SPTLRPC_BULK_SVC_AUTH	   = 1,    /**< authentication only */
-	SPTLRPC_BULK_SVC_INTG	   = 2,    /**< integrity */
-	SPTLRPC_BULK_SVC_PRIV	   = 3,    /**< privacy */
-	SPTLRPC_BULK_SVC_MAX,
-};
-
-/*
- * compose/extract macros
- */
-#define FLVR_POLICY_OFFSET	      (0)
-#define FLVR_MECH_OFFSET		(4)
-#define FLVR_SVC_OFFSET		 (8)
-#define FLVR_BULK_TYPE_OFFSET	   (12)
-#define FLVR_BULK_SVC_OFFSET	    (16)
-
-#define MAKE_FLVR(policy, mech, svc, btype, bsvc)		       \
-	(((__u32)(policy) << FLVR_POLICY_OFFSET) |		      \
-	 ((__u32)(mech) << FLVR_MECH_OFFSET) |			  \
-	 ((__u32)(svc) << FLVR_SVC_OFFSET) |			    \
-	 ((__u32)(btype) << FLVR_BULK_TYPE_OFFSET) |		    \
-	 ((__u32)(bsvc) << FLVR_BULK_SVC_OFFSET))
-
-/*
- * extraction
- */
-#define SPTLRPC_FLVR_POLICY(flavor)				     \
-	((((__u32)(flavor)) >> FLVR_POLICY_OFFSET) & 0xF)
-#define SPTLRPC_FLVR_MECH(flavor)				       \
-	((((__u32)(flavor)) >> FLVR_MECH_OFFSET) & 0xF)
-#define SPTLRPC_FLVR_SVC(flavor)					\
-	((((__u32)(flavor)) >> FLVR_SVC_OFFSET) & 0xF)
-#define SPTLRPC_FLVR_BULK_TYPE(flavor)				  \
-	((((__u32)(flavor)) >> FLVR_BULK_TYPE_OFFSET) & 0xF)
-#define SPTLRPC_FLVR_BULK_SVC(flavor)				   \
-	((((__u32)(flavor)) >> FLVR_BULK_SVC_OFFSET) & 0xF)
-
-#define SPTLRPC_FLVR_BASE(flavor)				       \
-	((((__u32)(flavor)) >> FLVR_POLICY_OFFSET) & 0xFFF)
-#define SPTLRPC_FLVR_BASE_SUB(flavor)				   \
-	((((__u32)(flavor)) >> FLVR_MECH_OFFSET) & 0xFF)
-
-/*
- * gss subflavors
- */
-#define MAKE_BASE_SUBFLVR(mech, svc)				    \
-	((__u32)(mech) |						\
-	 ((__u32)(svc) << (FLVR_SVC_OFFSET - FLVR_MECH_OFFSET)))
-
-#define SPTLRPC_SUBFLVR_KRB5N					   \
-	MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_NULL)
-#define SPTLRPC_SUBFLVR_KRB5A					   \
-	MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_AUTH)
-#define SPTLRPC_SUBFLVR_KRB5I					   \
-	MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_INTG)
-#define SPTLRPC_SUBFLVR_KRB5P					   \
-	MAKE_BASE_SUBFLVR(SPTLRPC_MECH_GSS_KRB5, SPTLRPC_SVC_PRIV)
-
-/*
- * "end user" flavors
- */
-#define SPTLRPC_FLVR_NULL			       \
-	MAKE_FLVR(SPTLRPC_POLICY_NULL,		  \
-		  SPTLRPC_MECH_NULL,		    \
-		  SPTLRPC_SVC_NULL,		     \
-		  SPTLRPC_BULK_DEFAULT,		 \
-		  SPTLRPC_BULK_SVC_NULL)
-#define SPTLRPC_FLVR_PLAIN			      \
-	MAKE_FLVR(SPTLRPC_POLICY_PLAIN,		 \
-		  SPTLRPC_MECH_PLAIN,		   \
-		  SPTLRPC_SVC_NULL,		     \
-		  SPTLRPC_BULK_HASH,		    \
-		  SPTLRPC_BULK_SVC_INTG)
-#define SPTLRPC_FLVR_KRB5N			      \
-	MAKE_FLVR(SPTLRPC_POLICY_GSS,		   \
-		  SPTLRPC_MECH_GSS_KRB5,		\
-		  SPTLRPC_SVC_NULL,		     \
-		  SPTLRPC_BULK_DEFAULT,		 \
-		  SPTLRPC_BULK_SVC_NULL)
-#define SPTLRPC_FLVR_KRB5A			      \
-	MAKE_FLVR(SPTLRPC_POLICY_GSS,		   \
-		  SPTLRPC_MECH_GSS_KRB5,		\
-		  SPTLRPC_SVC_AUTH,		     \
-		  SPTLRPC_BULK_DEFAULT,		 \
-		  SPTLRPC_BULK_SVC_NULL)
-#define SPTLRPC_FLVR_KRB5I			      \
-	MAKE_FLVR(SPTLRPC_POLICY_GSS,		   \
-		  SPTLRPC_MECH_GSS_KRB5,		\
-		  SPTLRPC_SVC_INTG,		     \
-		  SPTLRPC_BULK_DEFAULT,		 \
-		  SPTLRPC_BULK_SVC_INTG)
-#define SPTLRPC_FLVR_KRB5P			      \
-	MAKE_FLVR(SPTLRPC_POLICY_GSS,		   \
-		  SPTLRPC_MECH_GSS_KRB5,		\
-		  SPTLRPC_SVC_PRIV,		     \
-		  SPTLRPC_BULK_DEFAULT,		 \
-		  SPTLRPC_BULK_SVC_PRIV)
-
-#define SPTLRPC_FLVR_DEFAULT	    SPTLRPC_FLVR_NULL
-
-#define SPTLRPC_FLVR_INVALID	    ((__u32) 0xFFFFFFFF)
-#define SPTLRPC_FLVR_ANY		((__u32) 0xFFF00000)
-
-/**
- * extract the useful part from wire flavor
- */
-#define WIRE_FLVR(wflvr)		(((__u32) (wflvr)) & 0x000FFFFF)
-
-/** @} flavor */
-
-static inline void flvr_set_svc(__u32 *flvr, __u32 svc)
-{
-	LASSERT(svc < SPTLRPC_SVC_MAX);
-	*flvr = MAKE_FLVR(SPTLRPC_FLVR_POLICY(*flvr),
-			  SPTLRPC_FLVR_MECH(*flvr),
-			  svc,
-			  SPTLRPC_FLVR_BULK_TYPE(*flvr),
-			  SPTLRPC_FLVR_BULK_SVC(*flvr));
-}
-
-static inline void flvr_set_bulk_svc(__u32 *flvr, __u32 svc)
-{
-	LASSERT(svc < SPTLRPC_BULK_SVC_MAX);
-	*flvr = MAKE_FLVR(SPTLRPC_FLVR_POLICY(*flvr),
-			  SPTLRPC_FLVR_MECH(*flvr),
-			  SPTLRPC_FLVR_SVC(*flvr),
-			  SPTLRPC_FLVR_BULK_TYPE(*flvr),
-			  svc);
-}
-
-struct bulk_spec_hash {
-	__u8    hash_alg;
-};
-
-/**
- * Full description of flavors being used on a ptlrpc connection, include
- * both regular RPC and bulk transfer parts.
- */
-struct sptlrpc_flavor {
-	/**
-	 * wire flavor, should be renamed to sf_wire.
-	 */
-	__u32   sf_rpc;
-	/**
-	 * general flags of PTLRPC_SEC_FL_*
-	 */
-	__u32   sf_flags;
-	/**
-	 * rpc flavor specification
-	 */
-	union {
-		/* nothing for now */
-	} u_rpc;
-	/**
-	 * bulk flavor specification
-	 */
-	union {
-		struct bulk_spec_hash hash;
-	} u_bulk;
-};
-
-/**
- * identify the RPC is generated from what part of Lustre. It's encoded into
- * RPC requests and to be checked by ptlrpc service.
- */
-enum lustre_sec_part {
-	LUSTRE_SP_CLI	   = 0,
-	LUSTRE_SP_MDT,
-	LUSTRE_SP_OST,
-	LUSTRE_SP_MGC,
-	LUSTRE_SP_MGS,
-	LUSTRE_SP_ANY	   = 0xFF
-};
-
-const char *sptlrpc_part2name(enum lustre_sec_part sp);
-enum lustre_sec_part sptlrpc_target_sec_part(struct obd_device *obd);
-
-/**
- * A rule specifies a flavor to be used by a ptlrpc connection between
- * two Lustre parts.
- */
-struct sptlrpc_rule {
-	__u32		   sr_netid;   /* LNET network ID */
-	__u8		    sr_from;    /* sec_part */
-	__u8		    sr_to;      /* sec_part */
-	__u16		   sr_padding;
-	struct sptlrpc_flavor   sr_flvr;
-};
-
-/**
- * A set of rules in memory.
- *
- * Rules are generated and stored on MGS, and propagated to MDT, OST,
- * and client when needed.
- */
-struct sptlrpc_rule_set {
-	int		     srs_nslot;
-	int		     srs_nrule;
-	struct sptlrpc_rule    *srs_rules;
-};
-
-int sptlrpc_parse_flavor(const char *str, struct sptlrpc_flavor *flvr);
-int sptlrpc_flavor_has_bulk(struct sptlrpc_flavor *flvr);
-
-static inline void sptlrpc_rule_set_init(struct sptlrpc_rule_set *set)
-{
-	memset(set, 0, sizeof(*set));
-}
-
-void sptlrpc_rule_set_free(struct sptlrpc_rule_set *set);
-int  sptlrpc_rule_set_expand(struct sptlrpc_rule_set *set);
-int  sptlrpc_rule_set_merge(struct sptlrpc_rule_set *set,
-			    struct sptlrpc_rule *rule);
-int sptlrpc_rule_set_choose(struct sptlrpc_rule_set *rset,
-			    enum lustre_sec_part from,
-			    enum lustre_sec_part to,
-			    lnet_nid_t nid,
-			    struct sptlrpc_flavor *sf);
-void sptlrpc_rule_set_dump(struct sptlrpc_rule_set *set);
-
-int  sptlrpc_process_config(struct lustre_cfg *lcfg);
-void sptlrpc_conf_log_start(const char *logname);
-void sptlrpc_conf_log_stop(const char *logname);
-void sptlrpc_conf_log_update_begin(const char *logname);
-void sptlrpc_conf_log_update_end(const char *logname);
-void sptlrpc_conf_client_adapt(struct obd_device *obd);
-void sptlrpc_target_choose_flavor(struct sptlrpc_rule_set *rset,
-				  enum lustre_sec_part from,
-				  lnet_nid_t nid,
-				  struct sptlrpc_flavor *flavor);
-
-/* The maximum length of security payload. 1024 is enough for Kerberos 5,
- * and should be enough for other future mechanisms but not sure.
- * Only used by pre-allocated request/reply pool.
- */
-#define SPTLRPC_MAX_PAYLOAD     (1024)
-
-
-struct vfs_cred {
-	uint32_t	vc_uid;
-	uint32_t	vc_gid;
-};
-
-struct ptlrpc_ctx_ops {
-	/**
-	 * To determine whether it's suitable to use the \a ctx for \a vcred.
-	 */
-	int     (*match)       (struct ptlrpc_cli_ctx *ctx,
-				struct vfs_cred *vcred);
-
-	/**
-	 * To bring the \a ctx uptodate.
-	 */
-	int     (*refresh)     (struct ptlrpc_cli_ctx *ctx);
-
-	/**
-	 * Validate the \a ctx.
-	 */
-	int     (*validate)    (struct ptlrpc_cli_ctx *ctx);
-
-	/**
-	 * Force the \a ctx to die.
-	 */
-	void    (*force_die)   (struct ptlrpc_cli_ctx *ctx,
-				int grace);
-	int     (*display)     (struct ptlrpc_cli_ctx *ctx,
-				char *buf, int bufsize);
-
-	/**
-	 * Sign the request message using \a ctx.
-	 *
-	 * \pre req->rq_reqmsg point to request message.
-	 * \pre req->rq_reqlen is the request message length.
-	 * \post req->rq_reqbuf point to request message with signature.
-	 * \post req->rq_reqdata_len is set to the final request message size.
-	 *
-	 * \see null_ctx_sign(), plain_ctx_sign(), gss_cli_ctx_sign().
-	 */
-	int     (*sign)	(struct ptlrpc_cli_ctx *ctx,
-				struct ptlrpc_request *req);
-
-	/**
-	 * Verify the reply message using \a ctx.
-	 *
-	 * \pre req->rq_repdata point to reply message with signature.
-	 * \pre req->rq_repdata_len is the total reply message length.
-	 * \post req->rq_repmsg point to reply message without signature.
-	 * \post req->rq_replen is the reply message length.
-	 *
-	 * \see null_ctx_verify(), plain_ctx_verify(), gss_cli_ctx_verify().
-	 */
-	int     (*verify)      (struct ptlrpc_cli_ctx *ctx,
-				struct ptlrpc_request *req);
-
-	/**
-	 * Encrypt the request message using \a ctx.
-	 *
-	 * \pre req->rq_reqmsg point to request message in clear text.
-	 * \pre req->rq_reqlen is the request message length.
-	 * \post req->rq_reqbuf point to request message.
-	 * \post req->rq_reqdata_len is set to the final request message size.
-	 *
-	 * \see gss_cli_ctx_seal().
-	 */
-	int     (*seal)	(struct ptlrpc_cli_ctx *ctx,
-				struct ptlrpc_request *req);
-
-	/**
-	 * Decrypt the reply message using \a ctx.
-	 *
-	 * \pre req->rq_repdata point to encrypted reply message.
-	 * \pre req->rq_repdata_len is the total cipher text length.
-	 * \post req->rq_repmsg point to reply message in clear text.
-	 * \post req->rq_replen is the reply message length in clear text.
-	 *
-	 * \see gss_cli_ctx_unseal().
-	 */
-	int     (*unseal)      (struct ptlrpc_cli_ctx *ctx,
-				struct ptlrpc_request *req);
-
-	/**
-	 * Wrap bulk request data. This is called before wrapping RPC
-	 * request message.
-	 *
-	 * \pre bulk buffer is descripted by desc->bd_iov and
-	 * desc->bd_iov_count. note for read it's just buffer, no data
-	 * need to be sent;  for write it contains data in clear text.
-	 * \post when necessary, ptlrpc_bulk_sec_desc was properly prepared
-	 * (usually inside of RPC request message).
-	 * - encryption: cipher text bulk buffer is descripted by
-	 *   desc->bd_enc_iov and desc->bd_iov_count (currently assume iov
-	 *   count remains the same).
-	 * - otherwise: bulk buffer is still desc->bd_iov and
-	 *   desc->bd_iov_count.
-	 *
-	 * \return 0: success.
-	 * \return -ev: error code.
-	 *
-	 * \see plain_cli_wrap_bulk(), gss_cli_ctx_wrap_bulk().
-	 */
-	int     (*wrap_bulk)   (struct ptlrpc_cli_ctx *ctx,
-				struct ptlrpc_request *req,
-				struct ptlrpc_bulk_desc *desc);
-
-	/**
-	 * Unwrap bulk reply data. This is called after wrapping RPC
-	 * reply message.
-	 *
-	 * \pre bulk buffer is descripted by desc->bd_iov/desc->bd_enc_iov and
-	 * desc->bd_iov_count, according to wrap_bulk().
-	 * \post final bulk data in clear text is placed in buffer described
-	 * by desc->bd_iov and desc->bd_iov_count.
-	 * \return +ve nob of actual bulk data in clear text.
-	 * \return -ve error code.
-	 *
-	 * \see plain_cli_unwrap_bulk(), gss_cli_ctx_unwrap_bulk().
-	 */
-	int     (*unwrap_bulk) (struct ptlrpc_cli_ctx *ctx,
-				struct ptlrpc_request *req,
-				struct ptlrpc_bulk_desc *desc);
-};
-
-#define PTLRPC_CTX_NEW_BIT	     (0)  /* newly created */
-#define PTLRPC_CTX_UPTODATE_BIT	(1)  /* uptodate */
-#define PTLRPC_CTX_DEAD_BIT	    (2)  /* mark expired gracefully */
-#define PTLRPC_CTX_ERROR_BIT	   (3)  /* fatal error (refresh, etc.) */
-#define PTLRPC_CTX_CACHED_BIT	  (8)  /* in ctx cache (hash etc.) */
-#define PTLRPC_CTX_ETERNAL_BIT	 (9)  /* always valid */
-
-#define PTLRPC_CTX_NEW		 (1 << PTLRPC_CTX_NEW_BIT)
-#define PTLRPC_CTX_UPTODATE	    (1 << PTLRPC_CTX_UPTODATE_BIT)
-#define PTLRPC_CTX_DEAD		(1 << PTLRPC_CTX_DEAD_BIT)
-#define PTLRPC_CTX_ERROR	       (1 << PTLRPC_CTX_ERROR_BIT)
-#define PTLRPC_CTX_CACHED	      (1 << PTLRPC_CTX_CACHED_BIT)
-#define PTLRPC_CTX_ETERNAL	     (1 << PTLRPC_CTX_ETERNAL_BIT)
-
-#define PTLRPC_CTX_STATUS_MASK	 (PTLRPC_CTX_NEW_BIT    |       \
-					PTLRPC_CTX_UPTODATE   |       \
-					PTLRPC_CTX_DEAD       |       \
-					PTLRPC_CTX_ERROR)
-
-struct ptlrpc_cli_ctx {
-	struct hlist_node	cc_cache;      /* linked into ctx cache */
-	atomic_t	    cc_refcount;
-	struct ptlrpc_sec      *cc_sec;
-	struct ptlrpc_ctx_ops  *cc_ops;
-	unsigned long	      cc_expire;     /* in seconds */
-	unsigned int	    cc_early_expire:1;
-	unsigned long	   cc_flags;
-	struct vfs_cred	 cc_vcred;
-	spinlock_t		cc_lock;
-	struct list_head	      cc_req_list;   /* waiting reqs linked here */
-	struct list_head	      cc_gc_chain;   /* linked to gc chain */
-};
-
-/**
- * client side policy operation vector.
- */
-struct ptlrpc_sec_cops {
-	/**
-	 * Given an \a imp, create and initialize a ptlrpc_sec structure.
-	 * \param ctx service context:
-	 * - regular import: \a ctx should be NULL;
-	 * - reverse import: \a ctx is obtained from incoming request.
-	 * \param flavor specify what flavor to use.
-	 *
-	 * When necessary, policy module is responsible for taking reference
-	 * on the import.
-	 *
-	 * \see null_create_sec(), plain_create_sec(), gss_sec_create_kr().
-	 */
-	struct ptlrpc_sec *     (*create_sec)  (struct obd_import *imp,
-						struct ptlrpc_svc_ctx *ctx,
-						struct sptlrpc_flavor *flavor);
-
-	/**
-	 * Destructor of ptlrpc_sec. When called, refcount has been dropped
-	 * to 0 and all contexts has been destroyed.
-	 *
-	 * \see null_destroy_sec(), plain_destroy_sec(), gss_sec_destroy_kr().
-	 */
-	void		    (*destroy_sec) (struct ptlrpc_sec *sec);
-
-	/**
-	 * Notify that this ptlrpc_sec is going to die. Optionally, policy
-	 * module is supposed to set sec->ps_dying and whatever necessary
-	 * actions.
-	 *
-	 * \see plain_kill_sec(), gss_sec_kill().
-	 */
-	void		    (*kill_sec)    (struct ptlrpc_sec *sec);
-
-	/**
-	 * Given \a vcred, lookup and/or create its context. The policy module
-	 * is supposed to maintain its own context cache.
-	 * XXX currently \a create and \a remove_dead is always 1, perhaps
-	 * should be removed completely.
-	 *
-	 * \see null_lookup_ctx(), plain_lookup_ctx(), gss_sec_lookup_ctx_kr().
-	 */
-	struct ptlrpc_cli_ctx * (*lookup_ctx)  (struct ptlrpc_sec *sec,
-						struct vfs_cred *vcred,
-						int create,
-						int remove_dead);
-
-	/**
-	 * Called then the reference of \a ctx dropped to 0. The policy module
-	 * is supposed to destroy this context or whatever else according to
-	 * its cache maintenance mechanism.
-	 *
-	 * \param sync if zero, we shouldn't wait for the context being
-	 * destroyed completely.
-	 *
-	 * \see plain_release_ctx(), gss_sec_release_ctx_kr().
-	 */
-	void		    (*release_ctx) (struct ptlrpc_sec *sec,
-						struct ptlrpc_cli_ctx *ctx,
-						int sync);
-
-	/**
-	 * Flush the context cache.
-	 *
-	 * \param uid context of which user, -1 means all contexts.
-	 * \param grace if zero, the PTLRPC_CTX_UPTODATE_BIT of affected
-	 * contexts should be cleared immediately.
-	 * \param force if zero, only idle contexts will be flushed.
-	 *
-	 * \see plain_flush_ctx_cache(), gss_sec_flush_ctx_cache_kr().
-	 */
-	int		     (*flush_ctx_cache)
-					       (struct ptlrpc_sec *sec,
-						uid_t uid,
-						int grace,
-						int force);
-
-	/**
-	 * Called periodically by garbage collector to remove dead contexts
-	 * from cache.
-	 *
-	 * \see gss_sec_gc_ctx_kr().
-	 */
-	void		    (*gc_ctx)      (struct ptlrpc_sec *sec);
-
-	/**
-	 * Given an context \a ctx, install a corresponding reverse service
-	 * context on client side.
-	 * XXX currently it's only used by GSS module, maybe we should remove
-	 * this from general API.
-	 */
-	int		     (*install_rctx)(struct obd_import *imp,
-						struct ptlrpc_sec *sec,
-						struct ptlrpc_cli_ctx *ctx);
-
-	/**
-	 * To allocate request buffer for \a req.
-	 *
-	 * \pre req->rq_reqmsg == NULL.
-	 * \pre req->rq_reqbuf == NULL, otherwise it must be pre-allocated,
-	 * we are not supposed to free it.
-	 * \post if success, req->rq_reqmsg point to a buffer with size
-	 * at least \a lustre_msg_size.
-	 *
-	 * \see null_alloc_reqbuf(), plain_alloc_reqbuf(), gss_alloc_reqbuf().
-	 */
-	int		     (*alloc_reqbuf)(struct ptlrpc_sec *sec,
-						struct ptlrpc_request *req,
-						int lustre_msg_size);
-
-	/**
-	 * To free request buffer for \a req.
-	 *
-	 * \pre req->rq_reqbuf != NULL.
-	 *
-	 * \see null_free_reqbuf(), plain_free_reqbuf(), gss_free_reqbuf().
-	 */
-	void		    (*free_reqbuf) (struct ptlrpc_sec *sec,
-						struct ptlrpc_request *req);
-
-	/**
-	 * To allocate reply buffer for \a req.
-	 *
-	 * \pre req->rq_repbuf == NULL.
-	 * \post if success, req->rq_repbuf point to a buffer with size
-	 * req->rq_repbuf_len, the size should be large enough to receive
-	 * reply which be transformed from \a lustre_msg_size of clear text.
-	 *
-	 * \see null_alloc_repbuf(), plain_alloc_repbuf(), gss_alloc_repbuf().
-	 */
-	int		     (*alloc_repbuf)(struct ptlrpc_sec *sec,
-						struct ptlrpc_request *req,
-						int lustre_msg_size);
-
-	/**
-	 * To free reply buffer for \a req.
-	 *
-	 * \pre req->rq_repbuf != NULL.
-	 * \post req->rq_repbuf == NULL.
-	 * \post req->rq_repbuf_len == 0.
-	 *
-	 * \see null_free_repbuf(), plain_free_repbuf(), gss_free_repbuf().
-	 */
-	void		    (*free_repbuf) (struct ptlrpc_sec *sec,
-						struct ptlrpc_request *req);
-
-	/**
-	 * To expand the request buffer of \a req, thus the \a segment in
-	 * the request message pointed by req->rq_reqmsg can accommodate
-	 * at least \a newsize of data.
-	 *
-	 * \pre req->rq_reqmsg->lm_buflens[segment] < newsize.
-	 *
-	 * \see null_enlarge_reqbuf(), plain_enlarge_reqbuf(),
-	 * gss_enlarge_reqbuf().
-	 */
-	int		     (*enlarge_reqbuf)
-					       (struct ptlrpc_sec *sec,
-						struct ptlrpc_request *req,
-						int segment, int newsize);
-	/*
-	 * misc
-	 */
-	int		     (*display)     (struct ptlrpc_sec *sec,
-						struct seq_file *seq);
-};
-
-/**
- * server side policy operation vector.
- */
-struct ptlrpc_sec_sops {
-	/**
-	 * verify an incoming request.
-	 *
-	 * \pre request message is pointed by req->rq_reqbuf, size is
-	 * req->rq_reqdata_len; and the message has been unpacked to
-	 * host byte order.
-	 *
-	 * \retval SECSVC_OK success, req->rq_reqmsg point to request message
-	 * in clear text, size is req->rq_reqlen; req->rq_svc_ctx is set;
-	 * req->rq_sp_from is decoded from request.
-	 * \retval SECSVC_COMPLETE success, the request has been fully
-	 * processed, and reply message has been prepared; req->rq_sp_from is
-	 * decoded from request.
-	 * \retval SECSVC_DROP failed, this request should be dropped.
-	 *
-	 * \see null_accept(), plain_accept(), gss_svc_accept_kr().
-	 */
-	int		     (*accept)      (struct ptlrpc_request *req);
-
-	/**
-	 * Perform security transformation upon reply message.
-	 *
-	 * \pre reply message is pointed by req->rq_reply_state->rs_msg, size
-	 * is req->rq_replen.
-	 * \post req->rs_repdata_len is the final message size.
-	 * \post req->rq_reply_off is set.
-	 *
-	 * \see null_authorize(), plain_authorize(), gss_svc_authorize().
-	 */
-	int		     (*authorize)   (struct ptlrpc_request *req);
-
-	/**
-	 * Invalidate server context \a ctx.
-	 *
-	 * \see gss_svc_invalidate_ctx().
-	 */
-	void		    (*invalidate_ctx)
-					       (struct ptlrpc_svc_ctx *ctx);
-
-	/**
-	 * Allocate a ptlrpc_reply_state.
-	 *
-	 * \param msgsize size of the reply message in clear text.
-	 * \pre if req->rq_reply_state != NULL, then it's pre-allocated, we
-	 * should simply use it; otherwise we'll responsible for allocating
-	 * a new one.
-	 * \post req->rq_reply_state != NULL;
-	 * \post req->rq_reply_state->rs_msg != NULL;
-	 *
-	 * \see null_alloc_rs(), plain_alloc_rs(), gss_svc_alloc_rs().
-	 */
-	int		     (*alloc_rs)    (struct ptlrpc_request *req,
-						int msgsize);
-
-	/**
-	 * Free a ptlrpc_reply_state.
-	 */
-	void		    (*free_rs)     (struct ptlrpc_reply_state *rs);
-
-	/**
-	 * Release the server context \a ctx.
-	 *
-	 * \see gss_svc_free_ctx().
-	 */
-	void		    (*free_ctx)    (struct ptlrpc_svc_ctx *ctx);
-
-	/**
-	 * Install a reverse context based on the server context \a ctx.
-	 *
-	 * \see gss_svc_install_rctx_kr().
-	 */
-	int		     (*install_rctx)(struct obd_import *imp,
-						struct ptlrpc_svc_ctx *ctx);
-
-	/**
-	 * Prepare buffer for incoming bulk write.
-	 *
-	 * \pre desc->bd_iov and desc->bd_iov_count describes the buffer
-	 * intended to receive the write.
-	 *
-	 * \see gss_svc_prep_bulk().
-	 */
-	int		     (*prep_bulk)   (struct ptlrpc_request *req,
-						struct ptlrpc_bulk_desc *desc);
-
-	/**
-	 * Unwrap the bulk write data.
-	 *
-	 * \see plain_svc_unwrap_bulk(), gss_svc_unwrap_bulk().
-	 */
-	int		     (*unwrap_bulk) (struct ptlrpc_request *req,
-						struct ptlrpc_bulk_desc *desc);
-
-	/**
-	 * Wrap the bulk read data.
-	 *
-	 * \see plain_svc_wrap_bulk(), gss_svc_wrap_bulk().
-	 */
-	int		     (*wrap_bulk)   (struct ptlrpc_request *req,
-						struct ptlrpc_bulk_desc *desc);
-};
-
-struct ptlrpc_sec_policy {
-	struct module		   *sp_owner;
-	char			   *sp_name;
-	__u16			   sp_policy; /* policy number */
-	struct ptlrpc_sec_cops	 *sp_cops;   /* client ops */
-	struct ptlrpc_sec_sops	 *sp_sops;   /* server ops */
-};
-
-#define PTLRPC_SEC_FL_REVERSE	   0x0001 /* reverse sec */
-#define PTLRPC_SEC_FL_ROOTONLY	  0x0002 /* treat everyone as root */
-#define PTLRPC_SEC_FL_UDESC	     0x0004 /* ship udesc */
-#define PTLRPC_SEC_FL_BULK	      0x0008 /* intensive bulk i/o expected */
-#define PTLRPC_SEC_FL_PAG	       0x0010 /* PAG mode */
-
-/**
- * The ptlrpc_sec represents the client side ptlrpc security facilities,
- * each obd_import (both regular and reverse import) must associate with
- * a ptlrpc_sec.
- *
- * \see sptlrpc_import_sec_adapt().
- */
-struct ptlrpc_sec {
-	struct ptlrpc_sec_policy       *ps_policy;
-	atomic_t		    ps_refcount;
-	/** statistic only */
-	atomic_t		    ps_nctx;
-	/** unique identifier */
-	int			     ps_id;
-	struct sptlrpc_flavor	   ps_flvr;
-	enum lustre_sec_part	    ps_part;
-	/** after set, no more new context will be created */
-	unsigned int		    ps_dying:1;
-	/** owning import */
-	struct obd_import	      *ps_import;
-	spinlock_t			ps_lock;
-
-	/*
-	 * garbage collection
-	 */
-	struct list_head		      ps_gc_list;
-	unsigned long		      ps_gc_interval; /* in seconds */
-	unsigned long		      ps_gc_next;     /* in seconds */
-};
-
-static inline int sec_is_reverse(struct ptlrpc_sec *sec)
-{
-	return (sec->ps_flvr.sf_flags & PTLRPC_SEC_FL_REVERSE);
-}
-
-static inline int sec_is_rootonly(struct ptlrpc_sec *sec)
-{
-	return (sec->ps_flvr.sf_flags & PTLRPC_SEC_FL_ROOTONLY);
-}
-
-
-struct ptlrpc_svc_ctx {
-	atomic_t		    sc_refcount;
-	struct ptlrpc_sec_policy       *sc_policy;
-};
-
-/*
- * user identity descriptor
- */
-#define LUSTRE_MAX_GROUPS	       (128)
-
-struct ptlrpc_user_desc {
-	__u32	   pud_uid;
-	__u32	   pud_gid;
-	__u32	   pud_fsuid;
-	__u32	   pud_fsgid;
-	__u32	   pud_cap;
-	__u32	   pud_ngroups;
-	__u32	   pud_groups[0];
-};
-
-/*
- * bulk flavors
- */
-enum sptlrpc_bulk_hash_alg {
-	BULK_HASH_ALG_NULL      = 0,
-	BULK_HASH_ALG_ADLER32,
-	BULK_HASH_ALG_CRC32,
-	BULK_HASH_ALG_MD5,
-	BULK_HASH_ALG_SHA1,
-	BULK_HASH_ALG_SHA256,
-	BULK_HASH_ALG_SHA384,
-	BULK_HASH_ALG_SHA512,
-	BULK_HASH_ALG_MAX
-};
-
-const char *sptlrpc_get_hash_name(__u8 hash_alg);
-__u8 sptlrpc_get_hash_alg(const char *algname);
-
-enum {
-	BSD_FL_ERR      = 1,
-};
-
-struct ptlrpc_bulk_sec_desc {
-	__u8	    bsd_version;    /* 0 */
-	__u8	    bsd_type;       /* SPTLRPC_BULK_XXX */
-	__u8	    bsd_svc;	/* SPTLRPC_BULK_SVC_XXXX */
-	__u8	    bsd_flags;      /* flags */
-	__u32	   bsd_nob;	/* nob of bulk data */
-	__u8	    bsd_data[0];    /* policy-specific token */
-};
-
-
-/*
- * round size up to next power of 2, for slab allocation.
- * @size must be sane (can't overflow after round up)
- */
-static inline int size_roundup_power2(int size)
-{
-	size--;
-	size |= size >> 1;
-	size |= size >> 2;
-	size |= size >> 4;
-	size |= size >> 8;
-	size |= size >> 16;
-	size++;
-	return size;
-}
-
-/*
- * internal support libraries
- */
-void _sptlrpc_enlarge_msg_inplace(struct lustre_msg *msg,
-				  int segment, int newsize);
-
-/*
- * security policies
- */
-int sptlrpc_register_policy(struct ptlrpc_sec_policy *policy);
-int sptlrpc_unregister_policy(struct ptlrpc_sec_policy *policy);
-
-__u32 sptlrpc_name2flavor_base(const char *name);
-const char *sptlrpc_flavor2name_base(__u32 flvr);
-char *sptlrpc_flavor2name_bulk(struct sptlrpc_flavor *sf,
-			       char *buf, int bufsize);
-char *sptlrpc_flavor2name(struct sptlrpc_flavor *sf, char *buf, int bufsize);
-char *sptlrpc_secflags2str(__u32 flags, char *buf, int bufsize);
-
-static inline
-struct ptlrpc_sec_policy *sptlrpc_policy_get(struct ptlrpc_sec_policy *policy)
-{
-	__module_get(policy->sp_owner);
-	return policy;
-}
-
-static inline
-void sptlrpc_policy_put(struct ptlrpc_sec_policy *policy)
-{
-	module_put(policy->sp_owner);
-}
-
-/*
- * client credential
- */
-static inline
-unsigned long cli_ctx_status(struct ptlrpc_cli_ctx *ctx)
-{
-	return (ctx->cc_flags & PTLRPC_CTX_STATUS_MASK);
-}
-
-static inline
-int cli_ctx_is_ready(struct ptlrpc_cli_ctx *ctx)
-{
-	return (cli_ctx_status(ctx) == PTLRPC_CTX_UPTODATE);
-}
-
-static inline
-int cli_ctx_is_refreshed(struct ptlrpc_cli_ctx *ctx)
-{
-	return (cli_ctx_status(ctx) != 0);
-}
-
-static inline
-int cli_ctx_is_uptodate(struct ptlrpc_cli_ctx *ctx)
-{
-	return ((ctx->cc_flags & PTLRPC_CTX_UPTODATE) != 0);
-}
-
-static inline
-int cli_ctx_is_error(struct ptlrpc_cli_ctx *ctx)
-{
-	return ((ctx->cc_flags & PTLRPC_CTX_ERROR) != 0);
-}
-
-static inline
-int cli_ctx_is_dead(struct ptlrpc_cli_ctx *ctx)
-{
-	return ((ctx->cc_flags & (PTLRPC_CTX_DEAD | PTLRPC_CTX_ERROR)) != 0);
-}
-
-static inline
-int cli_ctx_is_eternal(struct ptlrpc_cli_ctx *ctx)
-{
-	return ((ctx->cc_flags & PTLRPC_CTX_ETERNAL) != 0);
-}
-
-/*
- * sec get/put
- */
-struct ptlrpc_sec *sptlrpc_sec_get(struct ptlrpc_sec *sec);
-void sptlrpc_sec_put(struct ptlrpc_sec *sec);
-
-/*
- * internal apis which only used by policy implementation
- */
-int  sptlrpc_get_next_secid(void);
-void sptlrpc_sec_destroy(struct ptlrpc_sec *sec);
-
-/*
- * exported client context api
- */
-struct ptlrpc_cli_ctx *sptlrpc_cli_ctx_get(struct ptlrpc_cli_ctx *ctx);
-void sptlrpc_cli_ctx_put(struct ptlrpc_cli_ctx *ctx, int sync);
-void sptlrpc_cli_ctx_expire(struct ptlrpc_cli_ctx *ctx);
-void sptlrpc_cli_ctx_wakeup(struct ptlrpc_cli_ctx *ctx);
-int sptlrpc_cli_ctx_display(struct ptlrpc_cli_ctx *ctx, char *buf, int bufsize);
-
-/*
- * exported client context wrap/buffers
- */
-int sptlrpc_cli_wrap_request(struct ptlrpc_request *req);
-int sptlrpc_cli_unwrap_reply(struct ptlrpc_request *req);
-int sptlrpc_cli_alloc_reqbuf(struct ptlrpc_request *req, int msgsize);
-void sptlrpc_cli_free_reqbuf(struct ptlrpc_request *req);
-int sptlrpc_cli_alloc_repbuf(struct ptlrpc_request *req, int msgsize);
-void sptlrpc_cli_free_repbuf(struct ptlrpc_request *req);
-int sptlrpc_cli_enlarge_reqbuf(struct ptlrpc_request *req,
-			       int segment, int newsize);
-int  sptlrpc_cli_unwrap_early_reply(struct ptlrpc_request *req,
-				    struct ptlrpc_request **req_ret);
-void sptlrpc_cli_finish_early_reply(struct ptlrpc_request *early_req);
-
-void sptlrpc_request_out_callback(struct ptlrpc_request *req);
-
-/*
- * exported higher interface of import & request
- */
-int sptlrpc_import_sec_adapt(struct obd_import *imp,
-			     struct ptlrpc_svc_ctx *ctx,
-			     struct sptlrpc_flavor *flvr);
-struct ptlrpc_sec *sptlrpc_import_sec_ref(struct obd_import *imp);
-void sptlrpc_import_sec_put(struct obd_import *imp);
-
-int  sptlrpc_import_check_ctx(struct obd_import *imp);
-void sptlrpc_import_flush_root_ctx(struct obd_import *imp);
-void sptlrpc_import_flush_my_ctx(struct obd_import *imp);
-void sptlrpc_import_flush_all_ctx(struct obd_import *imp);
-int  sptlrpc_req_get_ctx(struct ptlrpc_request *req);
-void sptlrpc_req_put_ctx(struct ptlrpc_request *req, int sync);
-int  sptlrpc_req_refresh_ctx(struct ptlrpc_request *req, long timeout);
-int  sptlrpc_req_replace_dead_ctx(struct ptlrpc_request *req);
-void sptlrpc_req_set_flavor(struct ptlrpc_request *req, int opcode);
-
-int sptlrpc_parse_rule(char *param, struct sptlrpc_rule *rule);
-
-/* gc */
-void sptlrpc_gc_add_sec(struct ptlrpc_sec *sec);
-void sptlrpc_gc_del_sec(struct ptlrpc_sec *sec);
-void sptlrpc_gc_add_ctx(struct ptlrpc_cli_ctx *ctx);
-
-/* misc */
-const char *sec2target_str(struct ptlrpc_sec *sec);
-/*
- * lprocfs
- */
-int sptlrpc_lprocfs_cliobd_attach(struct obd_device *dev);
-
-/*
- * server side
- */
-enum secsvc_accept_res {
-	SECSVC_OK       = 0,
-	SECSVC_COMPLETE,
-	SECSVC_DROP,
-};
-
-int  sptlrpc_svc_unwrap_request(struct ptlrpc_request *req);
-int  sptlrpc_svc_alloc_rs(struct ptlrpc_request *req, int msglen);
-int  sptlrpc_svc_wrap_reply(struct ptlrpc_request *req);
-void sptlrpc_svc_free_rs(struct ptlrpc_reply_state *rs);
-void sptlrpc_svc_ctx_addref(struct ptlrpc_request *req);
-void sptlrpc_svc_ctx_decref(struct ptlrpc_request *req);
-void sptlrpc_svc_ctx_invalidate(struct ptlrpc_request *req);
-
-int  sptlrpc_target_export_check(struct obd_export *exp,
-				 struct ptlrpc_request *req);
-void sptlrpc_target_update_exp_flavor(struct obd_device *obd,
-				      struct sptlrpc_rule_set *rset);
-
-/*
- * reverse context
- */
-int sptlrpc_svc_install_rvs_ctx(struct obd_import *imp,
-				struct ptlrpc_svc_ctx *ctx);
-int sptlrpc_cli_install_rvs_ctx(struct obd_import *imp,
-				struct ptlrpc_cli_ctx *ctx);
-
-/* bulk security api */
-int sptlrpc_enc_pool_add_user(void);
-int sptlrpc_enc_pool_del_user(void);
-int  sptlrpc_enc_pool_get_pages(struct ptlrpc_bulk_desc *desc);
-void sptlrpc_enc_pool_put_pages(struct ptlrpc_bulk_desc *desc);
-
-int sptlrpc_cli_wrap_bulk(struct ptlrpc_request *req,
-			  struct ptlrpc_bulk_desc *desc);
-int sptlrpc_cli_unwrap_bulk_read(struct ptlrpc_request *req,
-				 struct ptlrpc_bulk_desc *desc,
-				 int nob);
-int sptlrpc_cli_unwrap_bulk_write(struct ptlrpc_request *req,
-				  struct ptlrpc_bulk_desc *desc);
-
-/* bulk helpers (internal use only by policies) */
-int sptlrpc_get_bulk_checksum(struct ptlrpc_bulk_desc *desc, __u8 alg,
-			      void *buf, int buflen);
-
-int bulk_sec_desc_unpack(struct lustre_msg *msg, int offset, int swabbed);
-
-/* user descriptor helpers */
-static inline int sptlrpc_user_desc_size(int ngroups)
-{
-	return sizeof(struct ptlrpc_user_desc) + ngroups * sizeof(__u32);
-}
-
-int sptlrpc_current_user_desc_size(void);
-int sptlrpc_pack_user_desc(struct lustre_msg *msg, int offset);
-int sptlrpc_unpack_user_desc(struct lustre_msg *req, int offset, int swabbed);
-
-
-#define CFS_CAP_CHOWN_MASK (1 << CFS_CAP_CHOWN)
-#define CFS_CAP_SYS_RESOURCE_MASK (1 << CFS_CAP_SYS_RESOURCE)
-
-enum {
-	LUSTRE_SEC_NONE	 = 0,
-	LUSTRE_SEC_REMOTE       = 1,
-	LUSTRE_SEC_SPECIFY      = 2,
-	LUSTRE_SEC_ALL	  = 3
-};
-
-/** @} sptlrpc */
-
-#endif /* _LUSTRE_SEC_H_ */
diff --git a/drivers/staging/lustre/lustre/include/lustre_ver.h b/drivers/staging/lustre/lustre/include/lustre_ver.h
deleted file mode 100644
index caa4da12f37a..000000000000
--- a/drivers/staging/lustre/lustre/include/lustre_ver.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef _LUSTRE_VER_H_
-#define _LUSTRE_VER_H_
-/* This file automatically generated from lustre/include/lustre_ver.h.in,
- * based on parameters in lustre/autoconf/lustre-version.ac.
- * Changes made directly to this file will be lost. */
-
-#define LUSTRE_MAJOR 2
-#define LUSTRE_MINOR 3
-#define LUSTRE_PATCH 64
-#define LUSTRE_FIX 0
-#define LUSTRE_VERSION_STRING "2.3.64"
-
-#define LUSTRE_VERSION_CODE OBD_OCD_VERSION(LUSTRE_MAJOR, \
-					    LUSTRE_MINOR, LUSTRE_PATCH, \
-					    LUSTRE_FIX)
-
-/* liblustre clients are only allowed to connect if their LUSTRE_FIX mismatches
- * by this amount (set in lustre/autoconf/lustre-version.ac). */
-#define LUSTRE_VERSION_ALLOWED_OFFSET OBD_OCD_VERSION(0, 0, 1, 32)
-
-/* If lustre version of client and servers it connects to differs by more
- * than this amount, client would issue a warning.
- * (set in lustre/autoconf/lustre-version.ac) */
-#define LUSTRE_VERSION_OFFSET_WARN OBD_OCD_VERSION(0, 4, 0, 0)
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
deleted file mode 100644
index 9ad8c268da10..000000000000
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ /dev/null
@@ -1,1498 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __OBD_H
-#define __OBD_H
-
-#include "linux/obd.h"
-
-#define IOC_OSC_TYPE	 'h'
-#define IOC_OSC_MIN_NR       20
-#define IOC_OSC_SET_ACTIVE   _IOWR(IOC_OSC_TYPE, 21, struct obd_device *)
-#define IOC_OSC_MAX_NR       50
-
-#define IOC_MDC_TYPE	 'i'
-#define IOC_MDC_MIN_NR       20
-#define IOC_MDC_MAX_NR       50
-
-#include "lustre/lustre_idl.h"
-#include "lustre_lib.h"
-#include "lu_ref.h"
-#include "lustre_export.h"
-#include "lustre_fid.h"
-#include "lustre_fld.h"
-#include "lustre_capa.h"
-
-#define MAX_OBD_DEVICES 8192
-
-struct osc_async_rc {
-	int     ar_rc;
-	int     ar_force_sync;
-	__u64   ar_min_xid;
-};
-
-struct lov_oinfo {		 /* per-stripe data structure */
-	struct ost_id   loi_oi;    /* object ID/Sequence on the target OST */
-	int loi_ost_idx;	   /* OST stripe index in lov_tgt_desc->tgts */
-	int loi_ost_gen;	   /* generation of this loi_ost_idx */
-
-	unsigned long loi_kms_valid:1;
-	__u64 loi_kms;	     /* known minimum size */
-	struct ost_lvb loi_lvb;
-	struct osc_async_rc     loi_ar;
-};
-
-static inline void loi_kms_set(struct lov_oinfo *oinfo, __u64 kms)
-{
-	oinfo->loi_kms = kms;
-	oinfo->loi_kms_valid = 1;
-}
-
-static inline void loi_init(struct lov_oinfo *loi)
-{
-}
-
-struct lov_stripe_md {
-	atomic_t     lsm_refc;
-	spinlock_t	lsm_lock;
-	pid_t	    lsm_lock_owner; /* debugging */
-
-	/* maximum possible file size, might change as OSTs status changes,
-	 * e.g. disconnected, deactivated */
-	__u64	    lsm_maxbytes;
-	struct {
-		/* Public members. */
-		struct ost_id lw_object_oi; /* lov object id/seq */
-
-		/* LOV-private members start here -- only for use in lov/. */
-		__u32 lw_magic;
-		__u32 lw_stripe_size;      /* size of the stripe */
-		__u32 lw_pattern;	  /* striping pattern (RAID0, RAID1) */
-		__u16 lw_stripe_count;  /* number of objects being striped over */
-		__u16 lw_layout_gen;       /* generation of the layout */
-		char  lw_pool_name[LOV_MAXPOOLNAME]; /* pool name */
-	} lsm_wire;
-
-	struct lov_oinfo *lsm_oinfo[0];
-};
-
-#define lsm_oi		 lsm_wire.lw_object_oi
-#define lsm_magic	lsm_wire.lw_magic
-#define lsm_layout_gen   lsm_wire.lw_layout_gen
-#define lsm_stripe_size  lsm_wire.lw_stripe_size
-#define lsm_pattern      lsm_wire.lw_pattern
-#define lsm_stripe_count lsm_wire.lw_stripe_count
-#define lsm_pool_name    lsm_wire.lw_pool_name
-
-static inline bool lsm_is_released(struct lov_stripe_md *lsm)
-{
-	return !!(lsm->lsm_pattern & LOV_PATTERN_F_RELEASED);
-}
-
-static inline bool lsm_has_objects(struct lov_stripe_md *lsm)
-{
-	if (lsm == NULL)
-		return false;
-	if (lsm_is_released(lsm))
-		return false;
-	return true;
-}
-
-static inline int lov_stripe_md_size(unsigned int stripe_count)
-{
-	struct lov_stripe_md lsm;
-
-	return sizeof(lsm) + stripe_count * sizeof(lsm.lsm_oinfo[0]);
-}
-
-struct obd_info;
-
-typedef int (*obd_enqueue_update_f)(void *cookie, int rc);
-
-/* obd info for a particular level (lov, osc). */
-struct obd_info {
-	/* Lock policy. It keeps an extent which is specific for a particular
-	 * OSC. (e.g. lov_prep_enqueue_set initialises extent of the policy,
-	 * and osc_enqueue passes it into ldlm_lock_match & ldlm_cli_enqueue. */
-	ldlm_policy_data_t      oi_policy;
-	/* Flags used for set request specific flags:
-	   - while lock handling, the flags obtained on the enqueue
-	   request are set here.
-	   - while stats, the flags used for control delay/resend.
-	   - while setattr, the flags used for distinguish punch operation
-	 */
-	__u64		   oi_flags;
-	/* Lock handle specific for every OSC lock. */
-	struct lustre_handle   *oi_lockh;
-	/* lsm data specific for every OSC. */
-	struct lov_stripe_md   *oi_md;
-	/* obdo data specific for every OSC, if needed at all. */
-	struct obdo	    *oi_oa;
-	/* statfs data specific for every OSC, if needed at all. */
-	struct obd_statfs      *oi_osfs;
-	/* An update callback which is called to update some data on upper
-	 * level. E.g. it is used for update lsm->lsm_oinfo at every received
-	 * request in osc level for enqueue requests. It is also possible to
-	 * update some caller data from LOV layer if needed. */
-	obd_enqueue_update_f    oi_cb_up;
-	/* oss capability, its type is obd_capa in client to avoid copy.
-	 * in contrary its type is lustre_capa in OSS. */
-	void		   *oi_capa;
-	/* transfer jobid from ost_sync() to filter_sync()... */
-	char		   *oi_jobid;
-};
-
-/* compare all relevant fields. */
-static inline int lov_stripe_md_cmp(struct lov_stripe_md *m1,
-				    struct lov_stripe_md *m2)
-{
-	/*
-	 * ->lsm_wire contains padding, but it should be zeroed out during
-	 * allocation.
-	 */
-	return memcmp(&m1->lsm_wire, &m2->lsm_wire, sizeof(m1->lsm_wire));
-}
-
-static inline int lov_lum_lsm_cmp(struct lov_user_md *lum,
-				  struct lov_stripe_md  *lsm)
-{
-	if (lsm->lsm_magic != lum->lmm_magic)
-		return 1;
-	if ((lsm->lsm_stripe_count != 0) && (lum->lmm_stripe_count != 0) &&
-	    (lsm->lsm_stripe_count != lum->lmm_stripe_count))
-		return 2;
-	if ((lsm->lsm_stripe_size != 0) && (lum->lmm_stripe_size != 0) &&
-	    (lsm->lsm_stripe_size != lum->lmm_stripe_size))
-		return 3;
-	if ((lsm->lsm_pattern != 0) && (lum->lmm_pattern != 0) &&
-	    (lsm->lsm_pattern != lum->lmm_pattern))
-		return 4;
-	if ((lsm->lsm_magic == LOV_MAGIC_V3) &&
-	    (strncmp(lsm->lsm_pool_name,
-		     ((struct lov_user_md_v3 *)lum)->lmm_pool_name,
-		     LOV_MAXPOOLNAME) != 0))
-		return 5;
-	return 0;
-}
-
-static inline int lov_lum_swab_if_needed(struct lov_user_md_v3 *lumv3,
-					 int *lmm_magic,
-					 struct lov_user_md *lum)
-{
-	if (lum && copy_from_user(lumv3, lum, sizeof(struct lov_user_md_v1)))
-		return -EFAULT;
-
-	*lmm_magic = lumv3->lmm_magic;
-
-	if (*lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
-		lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lumv3);
-		*lmm_magic = LOV_USER_MAGIC_V1;
-	} else if (*lmm_magic == LOV_USER_MAGIC_V3) {
-		if (lum && copy_from_user(lumv3, lum, sizeof(*lumv3)))
-			return -EFAULT;
-	} else if (*lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
-		if (lum && copy_from_user(lumv3, lum, sizeof(*lumv3)))
-			return -EFAULT;
-		lustre_swab_lov_user_md_v3(lumv3);
-		*lmm_magic = LOV_USER_MAGIC_V3;
-	} else if (*lmm_magic != LOV_USER_MAGIC_V1) {
-		CDEBUG(D_IOCTL,
-		       "bad userland LOV MAGIC: %#08x != %#08x nor %#08x\n",
-		       *lmm_magic, LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
-		       return -EINVAL;
-	}
-	return 0;
-}
-
-void lov_stripe_lock(struct lov_stripe_md *md);
-void lov_stripe_unlock(struct lov_stripe_md *md);
-
-struct obd_type {
-	struct list_head typ_chain;
-	struct obd_ops *typ_dt_ops;
-	struct md_ops *typ_md_ops;
-	struct dentry *typ_debugfs_entry;
-	char *typ_name;
-	int  typ_refcnt;
-	struct lu_device_type *typ_lu;
-	spinlock_t obd_type_lock;
-	struct kobject *typ_kobj;
-};
-
-struct brw_page {
-	u64 off;
-	struct page *pg;
-	int count;
-	u32 flag;
-};
-
-/* llog contexts */
-enum llog_ctxt_id {
-	LLOG_CONFIG_ORIG_CTXT  =  0,
-	LLOG_CONFIG_REPL_CTXT,
-	LLOG_MDS_OST_ORIG_CTXT,
-	LLOG_MDS_OST_REPL_CTXT,
-	LLOG_SIZE_ORIG_CTXT,
-	LLOG_SIZE_REPL_CTXT,
-	LLOG_RD1_ORIG_CTXT,
-	LLOG_RD1_REPL_CTXT,
-	LLOG_TEST_ORIG_CTXT,
-	LLOG_TEST_REPL_CTXT,
-	LLOG_LOVEA_ORIG_CTXT,
-	LLOG_LOVEA_REPL_CTXT,
-	LLOG_CHANGELOG_ORIG_CTXT,	/**< changelog generation on mdd */
-	LLOG_CHANGELOG_REPL_CTXT,	/**< changelog access on clients */
-	LLOG_CHANGELOG_USER_ORIG_CTXT,	/**< for multiple changelog consumers */
-	LLOG_AGENT_ORIG_CTXT,		/**< agent requests generation on cdt */
-	LLOG_MAX_CTXTS
-};
-
-struct timeout_item {
-	enum timeout_event ti_event;
-	unsigned long	 ti_timeout;
-	timeout_cb_t       ti_cb;
-	void	      *ti_cb_data;
-	struct list_head	 ti_obd_list;
-	struct list_head	 ti_chain;
-};
-
-#define OSC_MAX_RIF_DEFAULT       8
-#define MDS_OSC_MAX_RIF_DEFAULT   50
-#define OSC_MAX_RIF_MAX	 256
-#define OSC_MAX_DIRTY_DEFAULT  (OSC_MAX_RIF_DEFAULT * 4)
-#define OSC_MAX_DIRTY_MB_MAX   2048     /* arbitrary, but < MAX_LONG bytes */
-#define OSC_DEFAULT_RESENDS      10
-
-/* possible values for fo_sync_lock_cancel */
-enum {
-	NEVER_SYNC_ON_CANCEL = 0,
-	BLOCKING_SYNC_ON_CANCEL = 1,
-	ALWAYS_SYNC_ON_CANCEL = 2,
-	NUM_SYNC_ON_CANCEL_STATES
-};
-
-#define MDC_MAX_RIF_DEFAULT       8
-#define MDC_MAX_RIF_MAX	 512
-
-struct mdc_rpc_lock;
-struct obd_import;
-struct client_obd {
-	struct rw_semaphore  cl_sem;
-	struct obd_uuid	  cl_target_uuid;
-	struct obd_import       *cl_import; /* ptlrpc connection state */
-	int		      cl_conn_count;
-	/* max_mds_easize is purely a performance thing so we don't have to
-	 * call obd_size_diskmd() all the time. */
-	int			 cl_default_mds_easize;
-	int			 cl_max_mds_easize;
-	int			 cl_default_mds_cookiesize;
-	int			 cl_max_mds_cookiesize;
-
-	enum lustre_sec_part     cl_sp_me;
-	enum lustre_sec_part     cl_sp_to;
-	struct sptlrpc_flavor    cl_flvr_mgc;   /* fixed flavor of mgc->mgs */
-
-	/* the grant values are protected by loi_list_lock below */
-	long		     cl_dirty;	 /* all _dirty_ in bytes */
-	long		     cl_dirty_max;     /* allowed w/o rpc */
-	long		     cl_dirty_transit; /* dirty synchronous */
-	long		     cl_avail_grant;   /* bytes of credit for ost */
-	long		     cl_lost_grant;    /* lost credits (trunc) */
-
-	/* since we allocate grant by blocks, we don't know how many grant will
-	 * be used to add a page into cache. As a solution, we reserve maximum
-	 * grant before trying to dirty a page and unreserve the rest.
-	 * See osc_{reserve|unreserve}_grant for details. */
-	long		 cl_reserved_grant;
-	struct list_head cl_cache_waiters; /* waiting for cache/grant */
-	unsigned long	 cl_next_shrink_grant;   /* jiffies */
-	struct list_head cl_grant_shrink_list;  /* Timeout event list */
-	int		 cl_grant_shrink_interval; /* seconds */
-
-	/* A chunk is an optimal size used by osc_extent to determine
-	 * the extent size. A chunk is max(PAGE_CACHE_SIZE, OST block size) */
-	int		  cl_chunkbits;
-	int		  cl_chunk;
-	int		  cl_extent_tax; /* extent overhead, by bytes */
-
-	/* keep track of objects that have lois that contain pages which
-	 * have been queued for async brw.  this lock also protects the
-	 * lists of osc_client_pages that hang off of the loi */
-	/*
-	 * ->cl_loi_list_lock protects consistency of
-	 * ->cl_loi_{ready,read,write}_list. ->ap_make_ready() and
-	 * ->ap_completion() call-backs are executed under this lock. As we
-	 * cannot guarantee that these call-backs never block on all platforms
-	 * (as a matter of fact they do block on Mac OS X), type of
-	 * ->cl_loi_list_lock is platform dependent: it's a spin-lock on Linux
-	 * and blocking mutex on Mac OS X. (Alternative is to make this lock
-	 * blocking everywhere, but we don't want to slow down fast-path of
-	 * our main platform.)
-	 *
-	 * Exact type of ->cl_loi_list_lock is defined in arch/obd.h together
-	 * with client_obd_list_{un,}lock() and
-	 * client_obd_list_lock_{init,done}() functions.
-	 *
-	 * NB by Jinshan: though field names are still _loi_, but actually
-	 * osc_object{}s are in the list.
-	 */
-	client_obd_lock_t	cl_loi_list_lock;
-	struct list_head	       cl_loi_ready_list;
-	struct list_head	       cl_loi_hp_ready_list;
-	struct list_head	       cl_loi_write_list;
-	struct list_head	       cl_loi_read_list;
-	int		      cl_r_in_flight;
-	int		      cl_w_in_flight;
-	/* just a sum of the loi/lop pending numbers to be exported by /proc */
-	atomic_t	     cl_pending_w_pages;
-	atomic_t	     cl_pending_r_pages;
-	__u32			 cl_max_pages_per_rpc;
-	int		      cl_max_rpcs_in_flight;
-	struct obd_histogram     cl_read_rpc_hist;
-	struct obd_histogram     cl_write_rpc_hist;
-	struct obd_histogram     cl_read_page_hist;
-	struct obd_histogram     cl_write_page_hist;
-	struct obd_histogram     cl_read_offset_hist;
-	struct obd_histogram     cl_write_offset_hist;
-
-	/* lru for osc caching pages */
-	struct cl_client_cache	*cl_cache;
-	struct list_head	 cl_lru_osc; /* member of cl_cache->ccc_lru */
-	atomic_t		*cl_lru_left;
-	atomic_t		 cl_lru_busy;
-	atomic_t		 cl_lru_shrinkers;
-	atomic_t		 cl_lru_in_list;
-	struct list_head	 cl_lru_list; /* lru page list */
-	client_obd_lock_t	 cl_lru_list_lock; /* page list protector */
-
-	/* number of in flight destroy rpcs is limited to max_rpcs_in_flight */
-	atomic_t	     cl_destroy_in_flight;
-	wait_queue_head_t	      cl_destroy_waitq;
-
-	struct mdc_rpc_lock     *cl_rpc_lock;
-	struct mdc_rpc_lock     *cl_close_lock;
-
-	/* mgc datastruct */
-	struct mutex		 cl_mgc_mutex;
-	struct local_oid_storage *cl_mgc_los;
-	struct dt_object	*cl_mgc_configs_dir;
-	atomic_t	     cl_mgc_refcount;
-	struct obd_export       *cl_mgc_mgsexp;
-
-	/* checksumming for data sent over the network */
-	unsigned int	     cl_checksum:1; /* 0 = disabled, 1 = enabled */
-	/* supported checksum types that are worked out at connect time */
-	__u32		    cl_supp_cksum_types;
-	/* checksum algorithm to be used */
-	cksum_type_t	     cl_cksum_type;
-
-	/* also protected by the poorly named _loi_list_lock lock above */
-	struct osc_async_rc      cl_ar;
-
-	/* used by quotacheck when the servers are older than 2.4 */
-	int		      cl_qchk_stat; /* quotacheck stat of the peer */
-#define CL_NOT_QUOTACHECKED 1   /* client->cl_qchk_stat init value */
-#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 7, 50, 0)
-#warning "please consider removing quotacheck compatibility code"
-#endif
-
-	/* sequence manager */
-	struct lu_client_seq    *cl_seq;
-
-	atomic_t	     cl_resends; /* resend count */
-
-	/* ptlrpc work for writeback in ptlrpcd context */
-	void		    *cl_writeback_work;
-	/* hash tables for osc_quota_info */
-	struct cfs_hash	      *cl_quota_hash[MAXQUOTAS];
-};
-#define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid)
-
-struct obd_id_info {
-	__u32   idx;
-	u64	*data;
-};
-
-struct echo_client_obd {
-	struct obd_export	*ec_exp;   /* the local connection to osc/lov */
-	spinlock_t		ec_lock;
-	struct list_head	   ec_objects;
-	struct list_head	   ec_locks;
-	int		  ec_nstripes;
-	__u64		ec_unique;
-};
-
-struct lov_qos_oss {
-	struct obd_uuid     lqo_uuid;       /* ptlrpc's c_remote_uuid */
-	struct list_head	  lqo_oss_list;   /* link to lov_qos */
-	__u64	       lqo_bavail;     /* total bytes avail on OSS */
-	__u64	       lqo_penalty;    /* current penalty */
-	__u64	       lqo_penalty_per_obj;/* penalty decrease every obj*/
-	time_t	      lqo_used;       /* last used time, seconds */
-	__u32	       lqo_ost_count;  /* number of osts on this oss */
-};
-
-struct ltd_qos {
-	struct lov_qos_oss *ltq_oss;	 /* oss info */
-	__u64	       ltq_penalty;     /* current penalty */
-	__u64	       ltq_penalty_per_obj; /* penalty decrease every obj*/
-	__u64	       ltq_weight;      /* net weighting */
-	time_t	      ltq_used;	/* last used time, seconds */
-	unsigned int	ltq_usable:1;    /* usable for striping */
-};
-
-/* Generic subset of OSTs */
-struct ost_pool {
-	__u32	      *op_array;      /* array of index of
-						   lov_obd->lov_tgts */
-	unsigned int	op_count;      /* number of OSTs in the array */
-	unsigned int	op_size;       /* allocated size of lp_array */
-	struct rw_semaphore op_rw_sem;     /* to protect ost_pool use */
-};
-
-/* Round-robin allocator data */
-struct lov_qos_rr {
-	__u32	       lqr_start_idx;   /* start index of new inode */
-	__u32	       lqr_offset_idx;  /* aliasing for start_idx  */
-	int		 lqr_start_count; /* reseed counter */
-	struct ost_pool     lqr_pool;	/* round-robin optimized list */
-	unsigned long       lqr_dirty:1;     /* recalc round-robin list */
-};
-
-/* allow statfs data caching for 1 second */
-#define OBD_STATFS_CACHE_SECONDS 1
-
-struct lov_statfs_data {
-	struct obd_info   lsd_oi;
-	struct obd_statfs lsd_statfs;
-};
-/* Stripe placement optimization */
-struct lov_qos {
-	struct list_head    lq_oss_list; /* list of OSSs that targets use */
-	struct rw_semaphore lq_rw_sem;
-	__u32		lq_active_oss_count;
-	unsigned int	lq_prio_free;   /* priority for free space */
-	unsigned int	lq_threshold_rr;/* priority for rr */
-	struct lov_qos_rr   lq_rr;	  /* round robin qos data */
-	unsigned long       lq_dirty:1,     /* recalc qos data */
-			    lq_same_space:1,/* the ost's all have approx.
-					       the same space avail */
-			    lq_reset:1,     /* zero current penalties */
-			    lq_statfs_in_progress:1; /* statfs op in
-							progress */
-	/* qos statfs data */
-	struct lov_statfs_data *lq_statfs_data;
-	wait_queue_head_t	 lq_statfs_waitq; /* waitqueue to notify statfs
-					      * requests completion */
-};
-
-struct lov_tgt_desc {
-	struct list_head	  ltd_kill;
-	struct obd_uuid     ltd_uuid;
-	struct obd_device  *ltd_obd;
-	struct obd_export  *ltd_exp;
-	struct ltd_qos      ltd_qos;     /* qos info per target */
-	__u32	       ltd_gen;
-	__u32	       ltd_index;   /* index in lov_obd->tgts */
-	unsigned long       ltd_active:1,/* is this target up for requests */
-			    ltd_activate:1,/* should  target be activated */
-			    ltd_reap:1;  /* should this target be deleted */
-};
-
-/* Pool metadata */
-#define pool_tgt_size(_p)   _p->pool_obds.op_size
-#define pool_tgt_count(_p)  _p->pool_obds.op_count
-#define pool_tgt_array(_p)  _p->pool_obds.op_array
-#define pool_tgt_rw_sem(_p) _p->pool_obds.op_rw_sem
-
-struct pool_desc {
-	char		  pool_name[LOV_MAXPOOLNAME + 1]; /* name of pool */
-	struct ost_pool       pool_obds;	      /* pool members */
-	atomic_t	  pool_refcount;	  /* pool ref. counter */
-	struct lov_qos_rr     pool_rr;		/* round robin qos */
-	struct hlist_node      pool_hash;	      /* access by poolname */
-	struct list_head	    pool_list;	      /* serial access */
-	struct dentry		*pool_debugfs_entry;	/* file in /proc */
-	struct obd_device    *pool_lobd;	/* obd of the lov/lod to which
-						*  this pool belongs */
-};
-
-struct lov_obd {
-	struct lov_desc	 desc;
-	struct lov_tgt_desc   **lov_tgts;	      /* sparse array */
-	struct ost_pool	 lov_packed;	    /* all OSTs in a packed
-							  array */
-	struct mutex		lov_lock;
-	struct obd_connect_data lov_ocd;
-	atomic_t	    lov_refcount;
-	__u32		   lov_tgt_count;	 /* how many OBD's */
-	__u32		   lov_active_tgt_count;  /* how many active */
-	__u32		   lov_death_row;/* tgts scheduled to be deleted */
-	__u32		   lov_tgt_size;   /* size of tgts array */
-	int		     lov_connects;
-	int		     lov_pool_count;
-	struct cfs_hash	     *lov_pools_hash_body; /* used for key access */
-	struct list_head	lov_pool_list; /* used for sequential access */
-	struct dentry		*lov_pool_debugfs_entry;
-	enum lustre_sec_part    lov_sp_me;
-
-	/* Cached LRU pages from upper layer */
-	void		       *lov_cache;
-
-	struct rw_semaphore     lov_notify_lock;
-
-	struct kobject		*lov_tgts_kobj;
-};
-
-struct lmv_tgt_desc {
-	struct obd_uuid		ltd_uuid;
-	struct obd_export	*ltd_exp;
-	int			ltd_idx;
-	struct mutex		ltd_fid_mutex;
-	unsigned long		ltd_active:1; /* target up for requests */
-};
-
-enum placement_policy {
-	PLACEMENT_CHAR_POLICY   = 0,
-	PLACEMENT_NID_POLICY    = 1,
-	PLACEMENT_INVAL_POLICY  = 2,
-	PLACEMENT_MAX_POLICY
-};
-
-struct lmv_obd {
-	int			refcount;
-	struct lu_client_fld	lmv_fld;
-	spinlock_t		lmv_lock;
-	enum placement_policy	lmv_placement;
-	struct lmv_desc		desc;
-	struct obd_uuid		cluuid;
-	struct obd_export	*exp;
-
-	struct mutex		init_mutex;
-	int			connected;
-	int			max_easize;
-	int			max_def_easize;
-	int			max_cookiesize;
-	int			max_def_cookiesize;
-	int			server_timeout;
-
-	int			tgts_size; /* size of tgts array */
-	struct lmv_tgt_desc	**tgts;
-
-	struct obd_connect_data	conn_data;
-	struct kobject		*lmv_tgts_kobj;
-};
-
-struct niobuf_local {
-	__u64		lnb_file_offset;
-	__u32		lnb_page_offset;
-	__u32		len;
-	__u32		flags;
-	struct page	*page;
-	struct dentry	*dentry;
-	int		lnb_grant_used;
-	int		rc;
-};
-
-#define LUSTRE_FLD_NAME	 "fld"
-#define LUSTRE_SEQ_NAME	 "seq"
-
-#define LUSTRE_MDD_NAME	 "mdd"
-#define LUSTRE_OSD_LDISKFS_NAME	"osd-ldiskfs"
-#define LUSTRE_OSD_ZFS_NAME     "osd-zfs"
-#define LUSTRE_VVP_NAME	 "vvp"
-#define LUSTRE_LMV_NAME	 "lmv"
-#define LUSTRE_SLP_NAME	 "slp"
-#define LUSTRE_LOD_NAME		"lod"
-#define LUSTRE_OSP_NAME		"osp"
-#define LUSTRE_LWP_NAME		"lwp"
-
-/* obd device type names */
- /* FIXME all the references to LUSTRE_MDS_NAME should be swapped with LUSTRE_MDT_NAME */
-#define LUSTRE_MDS_NAME	 "mds"
-#define LUSTRE_MDT_NAME	 "mdt"
-#define LUSTRE_MDC_NAME	 "mdc"
-#define LUSTRE_OSS_NAME	 "ost"       /* FIXME change name to oss */
-#define LUSTRE_OST_NAME	 "obdfilter" /* FIXME change name to ost */
-#define LUSTRE_OSC_NAME	 "osc"
-#define LUSTRE_LOV_NAME	 "lov"
-#define LUSTRE_MGS_NAME	 "mgs"
-#define LUSTRE_MGC_NAME	 "mgc"
-
-#define LUSTRE_ECHO_NAME	"obdecho"
-#define LUSTRE_ECHO_CLIENT_NAME "echo_client"
-#define LUSTRE_QMT_NAME	 "qmt"
-
-/* Constant obd names (post-rename) */
-#define LUSTRE_MDS_OBDNAME "MDS"
-#define LUSTRE_OSS_OBDNAME "OSS"
-#define LUSTRE_MGS_OBDNAME "MGS"
-#define LUSTRE_MGC_OBDNAME "MGC"
-
-/* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
-#define N_LOCAL_TEMP_PAGE 0x10000000
-
-struct obd_trans_info {
-	__u64		    oti_transno;
-	__u64		    oti_xid;
-	/* Only used on the server side for tracking acks. */
-	struct oti_req_ack_lock {
-		struct lustre_handle lock;
-		__u32		mode;
-	}			oti_ack_locks[4];
-	void		    *oti_handle;
-	struct llog_cookie       oti_onecookie;
-	struct llog_cookie      *oti_logcookies;
-	int		      oti_numcookies;
-	/** synchronous write is needed */
-	unsigned long		 oti_sync_write:1;
-
-	/* initial thread handling transaction */
-	struct ptlrpc_thread *oti_thread;
-	__u32		    oti_conn_cnt;
-	/** VBR: versions */
-	__u64		    oti_pre_version;
-	/** JobID */
-	char		    *oti_jobid;
-
-	struct obd_uuid	 *oti_ost_uuid;
-};
-
-static inline void oti_init(struct obd_trans_info *oti,
-			    struct ptlrpc_request *req)
-{
-	if (oti == NULL)
-		return;
-	memset(oti, 0, sizeof(*oti));
-
-	if (req == NULL)
-		return;
-
-	oti->oti_xid = req->rq_xid;
-	/** VBR: take versions from request */
-	if (req->rq_reqmsg != NULL &&
-	    lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
-		__u64 *pre_version = lustre_msg_get_versions(req->rq_reqmsg);
-
-		oti->oti_pre_version = pre_version ? pre_version[0] : 0;
-		oti->oti_transno = lustre_msg_get_transno(req->rq_reqmsg);
-	}
-
-	/** called from mds_create_objects */
-	if (req->rq_repmsg != NULL)
-		oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
-	oti->oti_thread = req->rq_svc_thread;
-	if (req->rq_reqmsg != NULL)
-		oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
-}
-
-static inline void oti_alloc_cookies(struct obd_trans_info *oti,
-				     int num_cookies)
-{
-	if (!oti)
-		return;
-
-	if (num_cookies == 1)
-		oti->oti_logcookies = &oti->oti_onecookie;
-	else
-		OBD_ALLOC_LARGE(oti->oti_logcookies,
-				num_cookies * sizeof(oti->oti_onecookie));
-
-	oti->oti_numcookies = num_cookies;
-}
-
-static inline void oti_free_cookies(struct obd_trans_info *oti)
-{
-	if (!oti || !oti->oti_logcookies)
-		return;
-
-	if (oti->oti_logcookies == &oti->oti_onecookie)
-		LASSERT(oti->oti_numcookies == 1);
-	else
-		OBD_FREE_LARGE(oti->oti_logcookies,
-			       oti->oti_numcookies*sizeof(oti->oti_onecookie));
-	oti->oti_logcookies = NULL;
-	oti->oti_numcookies = 0;
-}
-
-/*
- * Events signalled through obd_notify() upcall-chain.
- */
-enum obd_notify_event {
-	/* target added */
-	OBD_NOTIFY_CREATE,
-	/* Device connect start */
-	OBD_NOTIFY_CONNECT,
-	/* Device activated */
-	OBD_NOTIFY_ACTIVE,
-	/* Device deactivated */
-	OBD_NOTIFY_INACTIVE,
-	/* Device disconnected */
-	OBD_NOTIFY_DISCON,
-	/* Connect data for import were changed */
-	OBD_NOTIFY_OCD,
-	/* Sync request */
-	OBD_NOTIFY_SYNC_NONBLOCK,
-	OBD_NOTIFY_SYNC,
-	/* Configuration event */
-	OBD_NOTIFY_CONFIG,
-	/* Administratively deactivate/activate event */
-	OBD_NOTIFY_DEACTIVATE,
-	OBD_NOTIFY_ACTIVATE
-};
-
-/*
- * Data structure used to pass obd_notify()-event to non-obd listeners (llite
- * and liblustre being main examples).
- */
-struct obd_notify_upcall {
-	int (*onu_upcall)(struct obd_device *host, struct obd_device *watched,
-			  enum obd_notify_event ev, void *owner, void *data);
-	/* Opaque datum supplied by upper layer listener */
-	void *onu_owner;
-};
-
-struct target_recovery_data {
-	svc_handler_t		trd_recovery_handler;
-	pid_t			trd_processing_task;
-	struct completion	trd_starting;
-	struct completion	trd_finishing;
-};
-
-struct obd_llog_group {
-	int		olg_seq;
-	struct llog_ctxt  *olg_ctxts[LLOG_MAX_CTXTS];
-	wait_queue_head_t	olg_waitq;
-	spinlock_t	   olg_lock;
-	struct mutex	   olg_cat_processing;
-};
-
-/* corresponds to one of the obd's */
-#define OBD_DEVICE_MAGIC	0XAB5CD6EF
-#define OBD_DEV_BY_DEVNAME      0xffffd0de
-
-struct lvfs_run_ctxt {
-	struct dt_device *dt;
-};
-
-struct obd_device {
-	struct obd_type	*obd_type;
-	__u32		   obd_magic;
-
-	/* common and UUID name of this device */
-	char		    obd_name[MAX_OBD_NAME];
-	struct obd_uuid	 obd_uuid;
-
-	struct lu_device       *obd_lu_dev;
-
-	int		     obd_minor;
-	/* bitfield modification is protected by obd_dev_lock */
-	unsigned long obd_attached:1,      /* finished attach */
-		      obd_set_up:1,	/* finished setup */
-		      obd_recovering:1,    /* there are recoverable clients */
-		      obd_abort_recovery:1,/* recovery expired */
-		      obd_version_recov:1, /* obd uses version checking */
-		      obd_replayable:1,    /* recovery is enabled; inform clients */
-		      obd_no_transno:1,    /* no committed-transno notification */
-		      obd_no_recov:1,      /* fail instead of retry messages */
-		      obd_stopping:1,      /* started cleanup */
-		      obd_starting:1,      /* started setup */
-		      obd_force:1,	 /* cleanup with > 0 obd refcount */
-		      obd_fail:1,	  /* cleanup with failover */
-		      obd_async_recov:1,   /* allow asynchronous orphan cleanup */
-		      obd_no_conn:1,       /* deny new connections */
-		      obd_inactive:1,      /* device active/inactive
-					   * (for /proc/status only!!) */
-		      obd_no_ir:1,	 /* no imperative recovery. */
-		      obd_process_conf:1;  /* device is processing mgs config */
-	/* use separate field as it is set in interrupt to don't mess with
-	 * protection of other bits using _bh lock */
-	unsigned long obd_recovery_expired:1;
-	/* uuid-export hash body */
-	struct cfs_hash	     *obd_uuid_hash;
-	/* nid-export hash body */
-	struct cfs_hash	     *obd_nid_hash;
-	atomic_t	    obd_refcount;
-	wait_queue_head_t	     obd_refcount_waitq;
-	struct list_head	      obd_exports;
-	struct list_head	      obd_unlinked_exports;
-	struct list_head	      obd_delayed_exports;
-	int		     obd_num_exports;
-	spinlock_t		obd_nid_lock;
-	struct ldlm_namespace  *obd_namespace;
-	struct ptlrpc_client	obd_ldlm_client; /* XXX OST/MDS only */
-	/* a spinlock is OK for what we do now, may need a semaphore later */
-	spinlock_t		obd_dev_lock; /* protect OBD bitfield above */
-	struct mutex		obd_dev_mutex;
-	__u64			obd_last_committed;
-	spinlock_t		obd_osfs_lock;
-	struct obd_statfs	obd_osfs;       /* locked by obd_osfs_lock */
-	__u64			obd_osfs_age;
-	struct lvfs_run_ctxt	obd_lvfs_ctxt;
-	struct obd_llog_group	obd_olg;	/* default llog group */
-	struct obd_device	*obd_observer;
-	struct rw_semaphore	obd_observer_link_sem;
-	struct obd_notify_upcall obd_upcall;
-	struct obd_export       *obd_self_export;
-	/* list of exports in LRU order, for ping evictor, with obd_dev_lock */
-	struct list_head	      obd_exports_timed;
-	time_t		  obd_eviction_timer; /* for ping evictor */
-
-	int			      obd_max_recoverable_clients;
-	atomic_t		     obd_connected_clients;
-	int			      obd_stale_clients;
-	int			      obd_delayed_clients;
-	/* this lock protects all recovery list_heads, timer and
-	 * obd_next_recovery_transno value */
-	spinlock_t			 obd_recovery_task_lock;
-	__u64			    obd_next_recovery_transno;
-	int			      obd_replayed_requests;
-	int			      obd_requests_queued_for_recovery;
-	wait_queue_head_t		      obd_next_transno_waitq;
-	/* protected by obd_recovery_task_lock */
-	struct timer_list	obd_recovery_timer;
-	time_t			obd_recovery_start; /* seconds */
-	time_t			obd_recovery_end; /* seconds, for lprocfs_status */
-	int			      obd_recovery_time_hard;
-	int			      obd_recovery_timeout;
-	int			      obd_recovery_ir_factor;
-
-	/* new recovery stuff from CMD2 */
-	struct target_recovery_data      obd_recovery_data;
-	int			      obd_replayed_locks;
-	atomic_t		     obd_req_replay_clients;
-	atomic_t		     obd_lock_replay_clients;
-	/* all lists are protected by obd_recovery_task_lock */
-	struct list_head		       obd_req_replay_queue;
-	struct list_head		       obd_lock_replay_queue;
-	struct list_head		       obd_final_req_queue;
-	int			      obd_recovery_stage;
-
-	union {
-		struct client_obd cli;
-		struct echo_client_obd echo_client;
-		struct lov_obd lov;
-		struct lmv_obd lmv;
-	} u;
-	/* Fields used by LProcFS */
-	unsigned int	   obd_cntr_base;
-	struct lprocfs_stats  *obd_stats;
-
-	unsigned int	   md_cntr_base;
-	struct lprocfs_stats  *md_stats;
-
-	struct dentry		*obd_debugfs_entry;
-	struct dentry		*obd_svc_debugfs_entry;
-	struct lprocfs_stats  *obd_svc_stats;
-	atomic_t	   obd_evict_inprogress;
-	wait_queue_head_t	    obd_evict_inprogress_waitq;
-	struct list_head	obd_evict_list; /* protected with pet_lock */
-
-	/**
-	 * Ldlm pool part. Save last calculated SLV and Limit.
-	 */
-	rwlock_t		obd_pool_lock;
-	int		    obd_pool_limit;
-	__u64		  obd_pool_slv;
-
-	/**
-	 * A list of outstanding class_incref()'s against this obd. For
-	 * debugging.
-	 */
-	struct lu_ref	  obd_reference;
-
-	int		       obd_conn_inprogress;
-
-	struct kobject		obd_kobj; /* sysfs object */
-	struct completion	obd_kobj_unregister;
-};
-
-#define OBD_LLOG_FL_SENDNOW     0x0001
-#define OBD_LLOG_FL_EXIT	0x0002
-
-enum obd_cleanup_stage {
-/* Special case hack for MDS LOVs */
-	OBD_CLEANUP_EARLY,
-/* can be directly mapped to .ldto_device_fini() */
-	OBD_CLEANUP_EXPORTS,
-};
-
-/* get/set_info keys */
-#define KEY_ASYNC	       "async"
-#define KEY_BLOCKSIZE_BITS      "blocksize_bits"
-#define KEY_BLOCKSIZE	   "blocksize"
-#define KEY_CAPA_KEY	    "capa_key"
-#define KEY_CHANGELOG_CLEAR     "changelog_clear"
-#define KEY_FID2PATH	    "fid2path"
-#define KEY_CHECKSUM	    "checksum"
-#define KEY_CLEAR_FS	    "clear_fs"
-#define KEY_CONN_DATA	   "conn_data"
-#define KEY_EVICT_BY_NID	"evict_by_nid"
-#define KEY_FIEMAP	      "fiemap"
-#define KEY_FLUSH_CTX	   "flush_ctx"
-#define KEY_GRANT_SHRINK	"grant_shrink"
-#define KEY_HSM_COPYTOOL_SEND   "hsm_send"
-#define KEY_INIT_RECOV_BACKUP   "init_recov_bk"
-#define KEY_INIT_RECOV	  "initial_recov"
-#define KEY_INTERMDS	    "inter_mds"
-#define KEY_LAST_ID	     "last_id"
-#define KEY_LAST_FID		"last_fid"
-#define KEY_LOCK_TO_STRIPE      "lock_to_stripe"
-#define KEY_LOVDESC	     "lovdesc"
-#define KEY_LOV_IDX	     "lov_idx"
-#define KEY_MAX_EASIZE		"max_easize"
-#define KEY_DEFAULT_EASIZE	"default_easize"
-#define KEY_MAX_COOKIESIZE	"max_cookiesize"
-#define KEY_DEFAULT_COOKIESIZE	"default_cookiesize"
-#define KEY_MDS_CONN	    "mds_conn"
-#define KEY_MGSSEC	      "mgssec"
-#define KEY_NEXT_ID	     "next_id"
-#define KEY_READ_ONLY	   "read-only"
-#define KEY_REGISTER_TARGET     "register_target"
-#define KEY_SET_FS	      "set_fs"
-#define KEY_TGT_COUNT	   "tgt_count"
-/*      KEY_SET_INFO in lustre_idl.h */
-#define KEY_SPTLRPC_CONF	"sptlrpc_conf"
-#define KEY_CONNECT_FLAG	"connect_flags"
-#define KEY_SYNC_LOCK_CANCEL    "sync_lock_cancel"
-
-#define KEY_CACHE_SET		"cache_set"
-#define KEY_CACHE_LRU_SHRINK	"cache_lru_shrink"
-#define KEY_CHANGELOG_INDEX	"changelog_index"
-
-struct lu_context;
-
-/* /!\ must be coherent with include/linux/namei.h on patched kernel */
-#define IT_OPEN     (1 << 0)
-#define IT_CREAT    (1 << 1)
-#define IT_READDIR  (1 << 2)
-#define IT_GETATTR  (1 << 3)
-#define IT_LOOKUP   (1 << 4)
-#define IT_UNLINK   (1 << 5)
-#define IT_TRUNC    (1 << 6)
-#define IT_GETXATTR (1 << 7)
-#define IT_EXEC     (1 << 8)
-#define IT_PIN      (1 << 9)
-#define IT_LAYOUT   (1 << 10)
-#define IT_QUOTA_DQACQ (1 << 11)
-#define IT_QUOTA_CONN  (1 << 12)
-#define IT_SETXATTR (1 << 13)
-
-static inline int it_to_lock_mode(struct lookup_intent *it)
-{
-	/* CREAT needs to be tested before open (both could be set) */
-	if (it->it_op & IT_CREAT)
-		return LCK_CW;
-	else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP |
-			      IT_LAYOUT))
-		return LCK_CR;
-	else if (it->it_op &  IT_GETXATTR)
-		return LCK_PR;
-	else if (it->it_op &  IT_SETXATTR)
-		return LCK_PW;
-
-	LASSERTF(0, "Invalid it_op: %d\n", it->it_op);
-	return -EINVAL;
-}
-
-struct md_op_data {
-	struct lu_fid	   op_fid1; /* operation fid1 (usually parent) */
-	struct lu_fid	   op_fid2; /* operation fid2 (usually child) */
-	struct lu_fid	   op_fid3; /* 2 extra fids to find conflicting */
-	struct lu_fid	   op_fid4; /* to the operation locks. */
-	u32			op_mds;  /* what mds server open will go to */
-	struct lustre_handle    op_handle;
-	s64			op_mod_time;
-	const char	     *op_name;
-	int		     op_namelen;
-	__u32		   op_mode;
-	struct lmv_stripe_md   *op_mea1;
-	struct lmv_stripe_md   *op_mea2;
-	__u32		   op_suppgids[2];
-	__u32		   op_fsuid;
-	__u32		   op_fsgid;
-	cfs_cap_t	       op_cap;
-	void		   *op_data;
-
-	/* iattr fields and blocks. */
-	struct iattr	    op_attr;
-	unsigned int	    op_attr_flags;
-	__u64		   op_valid;
-	loff_t		  op_attr_blocks;
-
-	/* Size-on-MDS epoch and flags. */
-	__u64		   op_ioepoch;
-	__u32		   op_flags;
-
-	/* Capa fields */
-	struct obd_capa	*op_capa1;
-	struct obd_capa	*op_capa2;
-
-	/* Various operation flags. */
-	enum mds_op_bias        op_bias;
-
-	/* Operation type */
-	__u32		   op_opc;
-
-	/* Used by readdir */
-	__u64		   op_offset;
-
-	/* Used by readdir */
-	__u32		   op_npages;
-
-	/* used to transfer info between the stacks of MD client
-	 * see enum op_cli_flags */
-	__u32			op_cli_flags;
-
-	/* File object data version for HSM release, on client */
-	__u64			op_data_version;
-	struct lustre_handle	op_lease_handle;
-};
-
-enum op_cli_flags {
-	CLI_SET_MEA	= 1 << 0,
-	CLI_RM_ENTRY	= 1 << 1,
-};
-
-struct md_enqueue_info;
-/* metadata stat-ahead */
-
-struct md_enqueue_info {
-	struct md_op_data       mi_data;
-	struct lookup_intent    mi_it;
-	struct lustre_handle    mi_lockh;
-	struct inode	   *mi_dir;
-	int (*mi_cb)(struct ptlrpc_request *req,
-		struct md_enqueue_info *minfo, int rc);
-	__u64		   mi_cbdata;
-	unsigned int	    mi_generation;
-};
-
-struct obd_ops {
-	struct module *o_owner;
-	int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
-			   void *karg, void *uarg);
-	int (*o_get_info)(const struct lu_env *env, struct obd_export *,
-			  __u32 keylen, void *key, __u32 *vallen, void *val,
-			  struct lov_stripe_md *lsm);
-	int (*o_set_info_async)(const struct lu_env *, struct obd_export *,
-				__u32 keylen, void *key,
-				__u32 vallen, void *val,
-				struct ptlrpc_request_set *set);
-	int (*o_attach)(struct obd_device *dev, u32 len, void *data);
-	int (*o_detach)(struct obd_device *dev);
-	int (*o_setup)(struct obd_device *dev, struct lustre_cfg *cfg);
-	int (*o_precleanup)(struct obd_device *dev,
-			    enum obd_cleanup_stage cleanup_stage);
-	int (*o_cleanup)(struct obd_device *dev);
-	int (*o_process_config)(struct obd_device *dev, u32 len, void *data);
-	int (*o_postrecov)(struct obd_device *dev);
-	int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
-			  int priority);
-	int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
-	/* connect to the target device with given connection
-	 * data. @ocd->ocd_connect_flags is modified to reflect flags actually
-	 * granted by the target, which are guaranteed to be a subset of flags
-	 * asked for. If @ocd == NULL, use default parameters. */
-	int (*o_connect)(const struct lu_env *env,
-			 struct obd_export **exp, struct obd_device *src,
-			 struct obd_uuid *cluuid, struct obd_connect_data *ocd,
-			 void *localdata);
-	int (*o_reconnect)(const struct lu_env *env,
-			   struct obd_export *exp, struct obd_device *src,
-			   struct obd_uuid *cluuid,
-			   struct obd_connect_data *ocd,
-			   void *localdata);
-	int (*o_disconnect)(struct obd_export *exp);
-
-	/* Initialize/finalize fids infrastructure. */
-	int (*o_fid_init)(struct obd_device *obd,
-			  struct obd_export *exp, enum lu_cli_type type);
-	int (*o_fid_fini)(struct obd_device *obd);
-
-	/* Allocate new fid according to passed @hint. */
-	int (*o_fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
-			   struct md_op_data *op_data);
-
-	/*
-	 * Object with @fid is getting deleted, we may want to do something
-	 * about this.
-	 */
-	int (*o_statfs)(const struct lu_env *, struct obd_export *exp,
-			struct obd_statfs *osfs, __u64 max_age, __u32 flags);
-	int (*o_statfs_async)(struct obd_export *exp, struct obd_info *oinfo,
-			      __u64 max_age, struct ptlrpc_request_set *set);
-	int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
-			struct lov_stripe_md *mem_src);
-	int (*o_unpackmd)(struct obd_export *exp,
-			  struct lov_stripe_md **mem_tgt,
-			  struct lov_mds_md *disk_src, int disk_len);
-	int (*o_preallocate)(struct lustre_handle *, u32 *req, u64 *ids);
-	/* FIXME: add fid capability support for create & destroy! */
-	int (*o_create)(const struct lu_env *env, struct obd_export *exp,
-			struct obdo *oa, struct lov_stripe_md **ea,
-			struct obd_trans_info *oti);
-	int (*o_destroy)(const struct lu_env *env, struct obd_export *exp,
-			 struct obdo *oa, struct lov_stripe_md *ea,
-			 struct obd_trans_info *oti, struct obd_export *md_exp,
-			 void *capa);
-	int (*o_setattr)(const struct lu_env *, struct obd_export *exp,
-			 struct obd_info *oinfo, struct obd_trans_info *oti);
-	int (*o_setattr_async)(struct obd_export *exp, struct obd_info *oinfo,
-			       struct obd_trans_info *oti,
-			       struct ptlrpc_request_set *rqset);
-	int (*o_getattr)(const struct lu_env *env, struct obd_export *exp,
-			 struct obd_info *oinfo);
-	int (*o_getattr_async)(struct obd_export *exp, struct obd_info *oinfo,
-			       struct ptlrpc_request_set *set);
-	int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
-			    u64 size, int shrink);
-	int (*o_preprw)(const struct lu_env *env, int cmd,
-			struct obd_export *exp, struct obdo *oa, int objcount,
-			struct obd_ioobj *obj, struct niobuf_remote *remote,
-			int *nr_pages, struct niobuf_local *local,
-			struct obd_trans_info *oti, struct lustre_capa *capa);
-	int (*o_commitrw)(const struct lu_env *env, int cmd,
-			  struct obd_export *exp, struct obdo *oa,
-			  int objcount, struct obd_ioobj *obj,
-			  struct niobuf_remote *remote, int pages,
-			  struct niobuf_local *local,
-			  struct obd_trans_info *oti, int rc);
-	int (*o_find_cbdata)(struct obd_export *, struct lov_stripe_md *,
-			     ldlm_iterator_t it, void *data);
-	int (*o_init_export)(struct obd_export *exp);
-	int (*o_destroy_export)(struct obd_export *exp);
-
-	/* metadata-only methods */
-	int (*o_import_event)(struct obd_device *, struct obd_import *,
-			      enum obd_import_event);
-
-	int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
-			enum obd_notify_event ev, void *data);
-
-	int (*o_health_check)(const struct lu_env *env, struct obd_device *);
-	struct obd_uuid *(*o_get_uuid)(struct obd_export *exp);
-
-	/* quota methods */
-	int (*o_quotacheck)(struct obd_device *, struct obd_export *,
-			    struct obd_quotactl *);
-	int (*o_quotactl)(struct obd_device *, struct obd_export *,
-			  struct obd_quotactl *);
-
-	/* pools methods */
-	int (*o_pool_new)(struct obd_device *obd, char *poolname);
-	int (*o_pool_del)(struct obd_device *obd, char *poolname);
-	int (*o_pool_add)(struct obd_device *obd, char *poolname,
-			  char *ostname);
-	int (*o_pool_rem)(struct obd_device *obd, char *poolname,
-			  char *ostname);
-	void (*o_getref)(struct obd_device *obd);
-	void (*o_putref)(struct obd_device *obd);
-	/*
-	 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
-	 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
-	 * Also, add a wrapper function in include/linux/obd_class.h. */
-};
-
-enum {
-	LUSTRE_OPC_MKDIR    = (1 << 0),
-	LUSTRE_OPC_SYMLINK  = (1 << 1),
-	LUSTRE_OPC_MKNOD    = (1 << 2),
-	LUSTRE_OPC_CREATE   = (1 << 3),
-	LUSTRE_OPC_ANY      = (1 << 4)
-};
-
-/* lmv structures */
-#define MEA_MAGIC_LAST_CHAR      0xb2221ca1
-#define MEA_MAGIC_ALL_CHARS      0xb222a11c
-#define MEA_MAGIC_HASH_SEGMENT   0xb222a11b
-
-#define MAX_HASH_SIZE_32	 0x7fffffffUL
-#define MAX_HASH_SIZE	    0x7fffffffffffffffULL
-#define MAX_HASH_HIGHEST_BIT     0x1000000000000000ULL
-
-struct lustre_md {
-	struct mdt_body	 *body;
-	struct lov_stripe_md    *lsm;
-	struct lmv_stripe_md    *mea;
-#ifdef CONFIG_FS_POSIX_ACL
-	struct posix_acl	*posix_acl;
-#endif
-	struct mdt_remote_perm  *remote_perm;
-	struct obd_capa	 *mds_capa;
-	struct obd_capa	 *oss_capa;
-};
-
-struct md_open_data {
-	struct obd_client_handle *mod_och;
-	struct ptlrpc_request    *mod_open_req;
-	struct ptlrpc_request    *mod_close_req;
-	atomic_t		  mod_refcount;
-	bool			  mod_is_create;
-};
-
-struct lookup_intent;
-
-struct md_ops {
-	int (*m_getstatus)(struct obd_export *, struct lu_fid *,
-			   struct obd_capa **);
-	int (*m_null_inode)(struct obd_export *, const struct lu_fid *);
-	int (*m_find_cbdata)(struct obd_export *, const struct lu_fid *,
-			     ldlm_iterator_t, void *);
-	int (*m_close)(struct obd_export *, struct md_op_data *,
-		       struct md_open_data *, struct ptlrpc_request **);
-	int (*m_create)(struct obd_export *, struct md_op_data *,
-			const void *, int, int, __u32, __u32, cfs_cap_t,
-			__u64, struct ptlrpc_request **);
-	int (*m_done_writing)(struct obd_export *, struct md_op_data  *,
-			      struct md_open_data *);
-	int (*m_enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
-			 struct lookup_intent *, struct md_op_data *,
-			 struct lustre_handle *, void *, int,
-			 struct ptlrpc_request **, __u64);
-	int (*m_getattr)(struct obd_export *, struct md_op_data *,
-			 struct ptlrpc_request **);
-	int (*m_getattr_name)(struct obd_export *, struct md_op_data *,
-			      struct ptlrpc_request **);
-	int (*m_intent_lock)(struct obd_export *, struct md_op_data *,
-			     void *, int, struct lookup_intent *, int,
-			     struct ptlrpc_request **,
-			     ldlm_blocking_callback, __u64);
-	int (*m_link)(struct obd_export *, struct md_op_data *,
-		      struct ptlrpc_request **);
-	int (*m_rename)(struct obd_export *, struct md_op_data *,
-			const char *, int, const char *, int,
-			struct ptlrpc_request **);
-	int (*m_is_subdir)(struct obd_export *, const struct lu_fid *,
-			   const struct lu_fid *,
-			   struct ptlrpc_request **);
-	int (*m_setattr)(struct obd_export *, struct md_op_data *, void *,
-			 int , void *, int, struct ptlrpc_request **,
-			 struct md_open_data **mod);
-	int (*m_sync)(struct obd_export *, const struct lu_fid *,
-		      struct obd_capa *, struct ptlrpc_request **);
-	int (*m_readpage)(struct obd_export *, struct md_op_data *,
-			  struct page **, struct ptlrpc_request **);
-
-	int (*m_unlink)(struct obd_export *, struct md_op_data *,
-			struct ptlrpc_request **);
-
-	int (*m_setxattr)(struct obd_export *, const struct lu_fid *,
-			  struct obd_capa *, u64, const char *,
-			  const char *, int, int, int, __u32,
-			  struct ptlrpc_request **);
-
-	int (*m_getxattr)(struct obd_export *, const struct lu_fid *,
-			  struct obd_capa *, u64, const char *,
-			  const char *, int, int, int,
-			  struct ptlrpc_request **);
-
-	int (*m_init_ea_size)(struct obd_export *, int, int, int, int);
-
-	int (*m_get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
-			       struct obd_export *, struct obd_export *,
-			       struct lustre_md *);
-
-	int (*m_free_lustre_md)(struct obd_export *, struct lustre_md *);
-
-	int (*m_set_open_replay_data)(struct obd_export *,
-				      struct obd_client_handle *,
-				      struct lookup_intent *);
-	int (*m_clear_open_replay_data)(struct obd_export *,
-					struct obd_client_handle *);
-	int (*m_set_lock_data)(struct obd_export *, __u64 *, void *, __u64 *);
-
-	ldlm_mode_t (*m_lock_match)(struct obd_export *, __u64,
-				    const struct lu_fid *, ldlm_type_t,
-				    ldlm_policy_data_t *, ldlm_mode_t,
-				    struct lustre_handle *);
-
-	int (*m_cancel_unused)(struct obd_export *, const struct lu_fid *,
-			       ldlm_policy_data_t *, ldlm_mode_t,
-			       ldlm_cancel_flags_t flags, void *opaque);
-	int (*m_renew_capa)(struct obd_export *, struct obd_capa *oc,
-			    renew_capa_cb_t cb);
-	int (*m_unpack_capa)(struct obd_export *, struct ptlrpc_request *,
-			     const struct req_msg_field *, struct obd_capa **);
-
-	int (*m_get_remote_perm)(struct obd_export *, const struct lu_fid *,
-				 struct obd_capa *, __u32,
-				 struct ptlrpc_request **);
-
-	int (*m_intent_getattr_async)(struct obd_export *,
-				      struct md_enqueue_info *,
-				      struct ldlm_enqueue_info *);
-
-	int (*m_revalidate_lock)(struct obd_export *, struct lookup_intent *,
-				 struct lu_fid *, __u64 *bits);
-
-	/*
-	 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
-	 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
-	 * wrapper function in include/linux/obd_class.h.
-	 */
-};
-
-struct lsm_operations {
-	void (*lsm_free)(struct lov_stripe_md *);
-	int (*lsm_destroy)(struct lov_stripe_md *, struct obdo *oa,
-			   struct obd_export *md_exp);
-	void (*lsm_stripe_by_index)(struct lov_stripe_md *, int *, u64 *,
-				    u64 *);
-	void (*lsm_stripe_by_offset)(struct lov_stripe_md *, int *, u64 *,
-				     u64 *);
-	int (*lsm_lmm_verify)(struct lov_mds_md *lmm, int lmm_bytes,
-			       __u16 *stripe_count);
-	int (*lsm_unpackmd)(struct lov_obd *lov, struct lov_stripe_md *lsm,
-			     struct lov_mds_md *lmm);
-};
-
-extern const struct lsm_operations lsm_v1_ops;
-extern const struct lsm_operations lsm_v3_ops;
-static inline const struct lsm_operations *lsm_op_find(int magic)
-{
-	switch (magic) {
-	case LOV_MAGIC_V1:
-	       return &lsm_v1_ops;
-	case LOV_MAGIC_V3:
-	       return &lsm_v3_ops;
-	default:
-	       CERROR("Cannot recognize lsm_magic %08x\n", magic);
-	       return NULL;
-	}
-}
-
-/* Requests for obd_extent_calc() */
-#define OBD_CALC_STRIPE_START   1
-#define OBD_CALC_STRIPE_END     2
-
-static inline struct lustre_capa *oinfo_capa(struct obd_info *oinfo)
-{
-	return oinfo->oi_capa;
-}
-
-static inline struct md_open_data *obd_mod_alloc(void)
-{
-	struct md_open_data *mod;
-
-	OBD_ALLOC_PTR(mod);
-	if (mod == NULL)
-		return NULL;
-	atomic_set(&mod->mod_refcount, 1);
-	return mod;
-}
-
-#define obd_mod_get(mod) atomic_inc(&(mod)->mod_refcount)
-#define obd_mod_put(mod)					\
-({							      \
-	if (atomic_dec_and_test(&(mod)->mod_refcount)) {	  \
-		if ((mod)->mod_open_req)			  \
-			ptlrpc_req_finished((mod)->mod_open_req);   \
-		OBD_FREE_PTR(mod);			      \
-	}						       \
-})
-
-void obdo_from_inode(struct obdo *dst, struct inode *src, u32 valid);
-void obdo_set_parent_fid(struct obdo *dst, const struct lu_fid *parent);
-
-/* return 1 if client should be resend request */
-static inline int client_should_resend(int resend, struct client_obd *cli)
-{
-	return atomic_read(&cli->cl_resends) ?
-	       atomic_read(&cli->cl_resends) > resend : 1;
-}
-
-/**
- * Return device name for this device
- *
- * XXX: lu_device is declared before obd_device, while a pointer pointing
- * back to obd_device in lu_device, so this helper function defines here
- * instead of in lu_object.h
- */
-static inline const char *lu_dev_name(const struct lu_device *lu_dev)
-{
-	return lu_dev->ld_obd->obd_name;
-}
-
-static inline bool filename_is_volatile(const char *name, int namelen, int *idx)
-{
-	const char	*start;
-	char		*end;
-
-	if (strncmp(name, LUSTRE_VOLATILE_HDR, LUSTRE_VOLATILE_HDR_LEN) != 0)
-		return false;
-
-	/* caller does not care of idx */
-	if (idx == NULL)
-		return true;
-
-	/* volatile file, the MDT can be set from name */
-	/* name format is LUSTRE_VOLATILE_HDR:[idx]: */
-	/* if no MDT is specified, use std way */
-	if (namelen < LUSTRE_VOLATILE_HDR_LEN + 2)
-		goto bad_format;
-	/* test for no MDT idx case */
-	if ((*(name + LUSTRE_VOLATILE_HDR_LEN) == ':') &&
-	    (*(name + LUSTRE_VOLATILE_HDR_LEN + 1) == ':')) {
-		*idx = -1;
-		return true;
-	}
-	/* we have an idx, read it */
-	start = name + LUSTRE_VOLATILE_HDR_LEN + 1;
-	*idx = simple_strtoul(start, &end, 0);
-	/* error cases:
-	 * no digit, no trailing :, negative value
-	 */
-	if (((*idx == 0) && (end == start)) ||
-	    (*end != ':') || (*idx < 0))
-		goto bad_format;
-
-	return true;
-bad_format:
-	/* bad format of mdt idx, we cannot return an error
-	 * to caller so we use hash algo */
-	CERROR("Bad volatile file name format: %s\n",
-	       name + LUSTRE_VOLATILE_HDR_LEN);
-	return false;
-}
-
-static inline int cli_brw_size(struct obd_device *obd)
-{
-	LASSERT(obd != NULL);
-	return obd->u.cli.cl_max_pages_per_rpc << PAGE_CACHE_SHIFT;
-}
-
-#endif /* __OBD_H */
diff --git a/drivers/staging/lustre/lustre/include/obd_cache.h b/drivers/staging/lustre/lustre/include/obd_cache.h
deleted file mode 100644
index c8249fbb0d72..000000000000
--- a/drivers/staging/lustre/lustre/include/obd_cache.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _OBD_CACHE_H__
-#define _OBD_CACHE_H__
-
-
-#endif
diff --git a/drivers/staging/lustre/lustre/include/obd_cksum.h b/drivers/staging/lustre/lustre/include/obd_cksum.h
deleted file mode 100644
index 3a63462aa943..000000000000
--- a/drivers/staging/lustre/lustre/include/obd_cksum.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __OBD_CKSUM
-#define __OBD_CKSUM
-#include "../../include/linux/libcfs/libcfs.h"
-#include "lustre/lustre_idl.h"
-
-static inline unsigned char cksum_obd2cfs(cksum_type_t cksum_type)
-{
-	switch (cksum_type) {
-	case OBD_CKSUM_CRC32:
-		return CFS_HASH_ALG_CRC32;
-	case OBD_CKSUM_ADLER:
-		return CFS_HASH_ALG_ADLER32;
-	case OBD_CKSUM_CRC32C:
-		return CFS_HASH_ALG_CRC32C;
-	default:
-		CERROR("Unknown checksum type (%x)!!!\n", cksum_type);
-		LBUG();
-	}
-	return 0;
-}
-
-/* The OBD_FL_CKSUM_* flags is packed into 5 bits of o_flags, since there can
- * only be a single checksum type per RPC.
- *
- * The OBD_CHECKSUM_* type bits passed in ocd_cksum_types are a 32-bit bitmask
- * since they need to represent the full range of checksum algorithms that
- * both the client and server can understand.
- *
- * In case of an unsupported types/flags we fall back to ADLER
- * because that is supported by all clients since 1.8
- *
- * In case multiple algorithms are supported the best one is used. */
-static inline u32 cksum_type_pack(cksum_type_t cksum_type)
-{
-	unsigned int    performance = 0, tmp;
-	u32		flag = OBD_FL_CKSUM_ADLER;
-
-	if (cksum_type & OBD_CKSUM_CRC32) {
-		tmp = cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32));
-		if (tmp > performance) {
-			performance = tmp;
-			flag = OBD_FL_CKSUM_CRC32;
-		}
-	}
-	if (cksum_type & OBD_CKSUM_CRC32C) {
-		tmp = cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32C));
-		if (tmp > performance) {
-			performance = tmp;
-			flag = OBD_FL_CKSUM_CRC32C;
-		}
-	}
-	if (cksum_type & OBD_CKSUM_ADLER) {
-		tmp = cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_ADLER));
-		if (tmp > performance) {
-			performance = tmp;
-			flag = OBD_FL_CKSUM_ADLER;
-		}
-	}
-	if (unlikely(cksum_type && !(cksum_type & (OBD_CKSUM_CRC32C |
-						   OBD_CKSUM_CRC32 |
-						   OBD_CKSUM_ADLER))))
-		CWARN("unknown cksum type %x\n", cksum_type);
-
-	return flag;
-}
-
-static inline cksum_type_t cksum_type_unpack(u32 o_flags)
-{
-	switch (o_flags & OBD_FL_CKSUM_ALL) {
-	case OBD_FL_CKSUM_CRC32C:
-		return OBD_CKSUM_CRC32C;
-	case OBD_FL_CKSUM_CRC32:
-		return OBD_CKSUM_CRC32;
-	default:
-		break;
-	}
-
-	return OBD_CKSUM_ADLER;
-}
-
-/* Return a bitmask of the checksum types supported on this system.
- * 1.8 supported ADLER it is base and not depend on hw
- * Client uses all available local algos
- */
-static inline cksum_type_t cksum_types_supported_client(void)
-{
-	cksum_type_t ret = OBD_CKSUM_ADLER;
-
-	CDEBUG(D_INFO, "Crypto hash speed: crc %d, crc32c %d, adler %d\n",
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32)),
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32C)),
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_ADLER)));
-
-	if (cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32C)) > 0)
-		ret |= OBD_CKSUM_CRC32C;
-	if (cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32)) > 0)
-		ret |= OBD_CKSUM_CRC32;
-
-	return ret;
-}
-
-/* Server uses algos that perform at 50% or better of the Adler */
-static inline cksum_type_t cksum_types_supported_server(void)
-{
-	int	     base_speed;
-	cksum_type_t    ret = OBD_CKSUM_ADLER;
-
-	CDEBUG(D_INFO, "Crypto hash speed: crc %d, crc32c %d, adler %d\n",
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32)),
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32C)),
-	       cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_ADLER)));
-
-	base_speed = cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_ADLER)) / 2;
-
-	if (cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32C)) >=
-	    base_speed)
-		ret |= OBD_CKSUM_CRC32C;
-	if (cfs_crypto_hash_speed(cksum_obd2cfs(OBD_CKSUM_CRC32)) >=
-	    base_speed)
-		ret |= OBD_CKSUM_CRC32;
-
-	return ret;
-}
-
-
-/* Select the best checksum algorithm among those supplied in the cksum_types
- * input.
- *
- * Currently, calling cksum_type_pack() with a mask will return the fastest
- * checksum type due to its benchmarking at libcfs module load.
- * Caution is advised, however, since what is fastest on a single client may
- * not be the fastest or most efficient algorithm on the server.  */
-static inline cksum_type_t cksum_type_select(cksum_type_t cksum_types)
-{
-	return cksum_type_unpack(cksum_type_pack(cksum_types));
-}
-
-/* Checksum algorithm names. Must be defined in the same order as the
- * OBD_CKSUM_* flags. */
-#define DECLARE_CKSUM_NAME char *cksum_name[] = {"crc32", "adler", "crc32c"}
-
-#endif /* __OBD_H */
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
deleted file mode 100644
index 87bb2cedca7d..000000000000
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ /dev/null
@@ -1,1894 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#ifndef __CLASS_OBD_H
-#define __CLASS_OBD_H
-
-
-#include "obd_support.h"
-#include "lustre_import.h"
-#include "lustre_net.h"
-#include "obd.h"
-#include "lustre_lib.h"
-#include "lustre/lustre_idl.h"
-#include "lprocfs_status.h"
-
-#define OBD_STATFS_NODELAY      0x0001  /* requests should be send without delay
-					 * and resends for avoid deadlocks */
-#define OBD_STATFS_FROM_CACHE   0x0002  /* the statfs callback should not update
-					 * obd_osfs_age */
-#define OBD_STATFS_PTLRPCD      0x0004  /* requests will be sent via ptlrpcd
-					 * instead of a specific set. This
-					 * means that we cannot rely on the set
-					 * interpret routine to be called.
-					 * lov_statfs_fini() must thus be called
-					 * by the request interpret routine */
-#define OBD_STATFS_FOR_MDT0	0x0008	/* The statfs is only for retrieving
-					 * information from MDT0. */
-#define OBD_FL_PUNCH    0x00000001      /* To indicate it is punch operation */
-
-/* OBD Device Declarations */
-extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
-extern rwlock_t obd_dev_lock;
-
-/* OBD Operations Declarations */
-struct obd_device *class_conn2obd(struct lustre_handle *);
-struct obd_device *class_exp2obd(struct obd_export *);
-int class_handle_ioctl(unsigned int cmd, unsigned long arg);
-int lustre_get_jobid(char *jobid);
-
-struct lu_device_type;
-
-/* genops.c */
-extern struct list_head obd_types;
-struct obd_export *class_conn2export(struct lustre_handle *);
-int class_register_type(struct obd_ops *, struct md_ops *,
-			const char *nm, struct lu_device_type *ldt);
-int class_unregister_type(const char *nm);
-
-struct obd_device *class_newdev(const char *type_name, const char *name);
-void class_release_dev(struct obd_device *obd);
-
-int class_name2dev(const char *name);
-struct obd_device *class_name2obd(const char *name);
-int class_uuid2dev(struct obd_uuid *uuid);
-struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
-void class_obd_list(void);
-struct obd_device *class_find_client_obd(struct obd_uuid *tgt_uuid,
-					  const char *typ_name,
-					  struct obd_uuid *grp_uuid);
-struct obd_device *class_devices_in_group(struct obd_uuid *grp_uuid,
-					   int *next);
-struct obd_device *class_num2obd(int num);
-int get_devices_count(void);
-
-int class_notify_sptlrpc_conf(const char *fsname, int namelen);
-
-char *obd_export_nid2str(struct obd_export *exp);
-
-int obd_export_evict_by_nid(struct obd_device *obd, const char *nid);
-int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid);
-int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep);
-
-int obd_zombie_impexp_init(void);
-void obd_zombie_impexp_stop(void);
-void obd_zombie_impexp_cull(void);
-void obd_zombie_barrier(void);
-void obd_exports_barrier(struct obd_device *obd);
-int kuc_len(int payload_len);
-struct kuc_hdr *kuc_ptr(void *p);
-int kuc_ispayload(void *p);
-void *kuc_alloc(int payload_len, int transport, int type);
-void kuc_free(void *p, int payload_len);
-
-struct llog_handle;
-struct llog_rec_hdr;
-typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
-			 struct llog_rec_hdr *, void *);
-/* obd_config.c */
-struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
-				     const char *new_name);
-int class_process_config(struct lustre_cfg *lcfg);
-int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
-			     struct lustre_cfg *lcfg, void *data);
-int class_attach(struct lustre_cfg *lcfg);
-int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
-int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
-int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
-struct obd_device *class_incref(struct obd_device *obd,
-				const char *scope, const void *source);
-void class_decref(struct obd_device *obd,
-		  const char *scope, const void *source);
-void dump_exports(struct obd_device *obd, int locks);
-int class_config_llog_handler(const struct lu_env *env,
-			      struct llog_handle *handle,
-			      struct llog_rec_hdr *rec, void *data);
-int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg);
-int class_add_uuid(const char *uuid, __u64 nid);
-
-/*obdecho*/
-void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars);
-
-#define CFG_F_START     0x01   /* Set when we start updating from a log */
-#define CFG_F_MARKER    0x02   /* We are within a maker */
-#define CFG_F_SKIP      0x04   /* We should ignore this cfg command */
-#define CFG_F_COMPAT146 0x08   /* Allow old-style logs */
-#define CFG_F_EXCLUDE   0x10   /* OST exclusion list */
-
-/* Passed as data param to class_config_parse_llog */
-struct config_llog_instance {
-	char	       *cfg_obdname;
-	void	       *cfg_instance;
-	struct super_block *cfg_sb;
-	struct obd_uuid     cfg_uuid;
-	llog_cb_t	    cfg_callback;
-	int		 cfg_last_idx; /* for partial llog processing */
-	int		 cfg_flags;
-};
-int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
-			    char *name, struct config_llog_instance *cfg);
-int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
-			   char *name, struct config_llog_instance *cfg);
-
-enum {
-	CONFIG_T_CONFIG  = 0,
-	CONFIG_T_SPTLRPC = 1,
-	CONFIG_T_RECOVER = 2,
-	CONFIG_T_PARAMS  = 3,
-	CONFIG_T_MAX     = 4
-};
-
-#define PARAMS_FILENAME	"params"
-#define LCTL_UPCALL	"lctl"
-
-/* list of active configuration logs  */
-struct config_llog_data {
-	struct ldlm_res_id	  cld_resid;
-	struct config_llog_instance cld_cfg;
-	struct list_head		  cld_list_chain;
-	atomic_t		cld_refcount;
-	struct config_llog_data    *cld_sptlrpc;/* depended sptlrpc log */
-	struct config_llog_data	   *cld_params;	/* common parameters log */
-	struct config_llog_data    *cld_recover;/* imperative recover log */
-	struct obd_export	  *cld_mgcexp;
-	struct mutex		    cld_lock;
-	int			 cld_type;
-	unsigned int		cld_stopping:1, /* we were told to stop
-						     * watching */
-				    cld_lostlock:1; /* lock not requeued */
-	char			cld_logname[0];
-};
-
-struct lustre_profile {
-	struct list_head       lp_list;
-	char	    *lp_profile;
-	char	    *lp_dt;
-	char	    *lp_md;
-};
-
-struct lustre_profile *class_get_profile(const char *prof);
-void class_del_profile(const char *prof);
-void class_del_profiles(void);
-
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-
-void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *);
-void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *);
-extern void (*class_export_dump_hook)(struct obd_export *);
-
-#else
-
-#define __class_export_add_lock_ref(exp, lock)	     do {} while (0)
-#define __class_export_del_lock_ref(exp, lock)	     do {} while (0)
-
-#endif
-
-static inline void class_export_rpc_inc(struct obd_export *exp)
-{
-	atomic_inc(&(exp)->exp_rpc_count);
-	CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n",
-	       (exp), atomic_read(&(exp)->exp_rpc_count));
-}
-
-static inline void class_export_rpc_dec(struct obd_export *exp)
-{
-	LASSERT_ATOMIC_POS(&exp->exp_rpc_count);
-	atomic_dec(&(exp)->exp_rpc_count);
-	CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n",
-	       (exp), atomic_read(&(exp)->exp_rpc_count));
-}
-
-#define class_export_lock_get(exp, lock)				\
-({								      \
-	atomic_inc(&(exp)->exp_locks_count);			\
-	__class_export_add_lock_ref(exp, lock);			 \
-	CDEBUG(D_INFO, "lock GETting export %p : new locks_count %d\n", \
-	       (exp), atomic_read(&(exp)->exp_locks_count));	\
-	class_export_get(exp);					  \
-})
-
-#define class_export_lock_put(exp, lock)				\
-({								      \
-	LASSERT_ATOMIC_POS(&exp->exp_locks_count);		      \
-	atomic_dec(&(exp)->exp_locks_count);			\
-	__class_export_del_lock_ref(exp, lock);			 \
-	CDEBUG(D_INFO, "lock PUTting export %p : new locks_count %d\n", \
-	       (exp), atomic_read(&(exp)->exp_locks_count));	\
-	class_export_put(exp);					  \
-})
-
-#define class_export_cb_get(exp)					\
-({								      \
-	atomic_inc(&(exp)->exp_cb_count);			   \
-	CDEBUG(D_INFO, "callback GETting export %p : new cb_count %d\n",\
-	       (exp), atomic_read(&(exp)->exp_cb_count));	   \
-	class_export_get(exp);					  \
-})
-
-#define class_export_cb_put(exp)					\
-({								      \
-	LASSERT_ATOMIC_POS(&exp->exp_cb_count);			 \
-	atomic_dec(&(exp)->exp_cb_count);			   \
-	CDEBUG(D_INFO, "callback PUTting export %p : new cb_count %d\n",\
-	       (exp), atomic_read(&(exp)->exp_cb_count));	   \
-	class_export_put(exp);					  \
-})
-
-/* genops.c */
-struct obd_export *class_export_get(struct obd_export *exp);
-void class_export_put(struct obd_export *exp);
-struct obd_export *class_new_export(struct obd_device *obddev,
-				    struct obd_uuid *cluuid);
-void class_unlink_export(struct obd_export *exp);
-
-struct obd_import *class_import_get(struct obd_import *);
-void class_import_put(struct obd_import *);
-struct obd_import *class_new_import(struct obd_device *obd);
-void class_destroy_import(struct obd_import *exp);
-
-struct obd_type *class_search_type(const char *name);
-struct obd_type *class_get_type(const char *name);
-void class_put_type(struct obd_type *type);
-int class_connect(struct lustre_handle *conn, struct obd_device *obd,
-		  struct obd_uuid *cluuid);
-int class_disconnect(struct obd_export *exp);
-void class_fail_export(struct obd_export *exp);
-int class_connected_export(struct obd_export *exp);
-void class_disconnect_exports(struct obd_device *obddev);
-int class_manual_cleanup(struct obd_device *obd);
-void class_disconnect_stale_exports(struct obd_device *,
-				    int (*test_export)(struct obd_export *));
-static inline enum obd_option exp_flags_from_obd(struct obd_device *obd)
-{
-	return ((obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
-		(obd->obd_force ? OBD_OPT_FORCE : 0) |
-		(obd->obd_abort_recovery ? OBD_OPT_ABORT_RECOV : 0) |
-		0);
-}
-
-struct inode;
-struct lu_attr;
-struct obdo;
-void obdo_from_la(struct obdo *dst, struct lu_attr *la, __u64 valid);
-void la_from_obdo(struct lu_attr *la, struct obdo *dst, u32 valid);
-void obdo_refresh_inode(struct inode *dst, struct obdo *src, u32 valid);
-void obdo_to_inode(struct inode *dst, struct obdo *src, u32 valid);
-
-void obdo_cpy_md(struct obdo *dst, struct obdo *src, u32 valid);
-void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
-void obdo_from_iattr(struct obdo *oa, struct iattr *attr,
-		     unsigned int ia_valid);
-void iattr_from_obdo(struct iattr *attr, struct obdo *oa, u32 valid);
-void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, u32 valid);
-void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
-		  unsigned int valid);
-
-void obdo_cpu_to_le(struct obdo *dobdo, struct obdo *sobdo);
-void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo);
-
-#define OBT(dev)	(dev)->obd_type
-#define OBP(dev, op)    (dev)->obd_type->typ_dt_ops->o_ ## op
-#define MDP(dev, op)    (dev)->obd_type->typ_md_ops->m_ ## op
-#define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
-
-/* Ensure obd_setup: used for cleanup which must be called
-   while obd is stopping */
-static inline int obd_check_dev(struct obd_device *obd)
-{
-	if (!obd) {
-		CERROR("NULL device\n");
-		return -ENODEV;
-	}
-	return 0;
-}
-
-/* ensure obd_setup and !obd_stopping */
-static inline int obd_check_dev_active(struct obd_device *obd)
-{
-	int rc;
-
-	rc = obd_check_dev(obd);
-	if (rc)
-		return rc;
-	if (!obd->obd_set_up || obd->obd_stopping) {
-		CERROR("Device %d not setup\n", obd->obd_minor);
-		return -ENODEV;
-	}
-	return rc;
-}
-
-#define OBD_COUNTER_OFFSET(op)				  \
-	((offsetof(struct obd_ops, o_ ## op) -		  \
-	  offsetof(struct obd_ops, o_iocontrol))		\
-	 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
-
-#define OBD_COUNTER_INCREMENT(obdx, op)			   \
-	if ((obdx)->obd_stats != NULL) {			  \
-		unsigned int coffset;			     \
-		coffset = (unsigned int)((obdx)->obd_cntr_base) + \
-			OBD_COUNTER_OFFSET(op);		   \
-		LASSERT(coffset < (obdx)->obd_stats->ls_num);     \
-		lprocfs_counter_incr((obdx)->obd_stats, coffset); \
-	}
-
-#define EXP_COUNTER_INCREMENT(export, op)				    \
-	if ((export)->exp_obd->obd_stats != NULL) {			  \
-		unsigned int coffset;					\
-		coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
-			OBD_COUNTER_OFFSET(op);			      \
-		LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num);     \
-		lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
-	}
-
-#define MD_COUNTER_OFFSET(op)				   \
-	((offsetof(struct md_ops, m_ ## op) -		   \
-	  offsetof(struct md_ops, m_getstatus))		 \
-	 / sizeof(((struct md_ops *)(0))->m_getstatus))
-
-#define MD_COUNTER_INCREMENT(obdx, op)			   \
-	if ((obd)->md_stats != NULL) {			   \
-		unsigned int coffset;			    \
-		coffset = (unsigned int)((obdx)->md_cntr_base) + \
-			MD_COUNTER_OFFSET(op);		   \
-		LASSERT(coffset < (obdx)->md_stats->ls_num);     \
-		lprocfs_counter_incr((obdx)->md_stats, coffset); \
-	}
-
-#define EXP_MD_COUNTER_INCREMENT(export, op)				 \
-	if ((export)->exp_obd->obd_stats != NULL) {			  \
-		unsigned int coffset;					\
-		coffset = (unsigned int)((export)->exp_obd->md_cntr_base) +  \
-			MD_COUNTER_OFFSET(op);			       \
-		LASSERT(coffset < (export)->exp_obd->md_stats->ls_num);      \
-		lprocfs_counter_incr((export)->exp_obd->md_stats, coffset);  \
-		if ((export)->exp_md_stats != NULL)			  \
-			lprocfs_counter_incr(				\
-				(export)->exp_md_stats, coffset);	    \
-	}
-
-
-#define OBD_CHECK_MD_OP(obd, op, err)			   \
-do {							    \
-	if (!OBT(obd) || !MDP((obd), op)) {		     \
-		if (err)					\
-			CERROR("md_" #op ": dev %s/%d no operation\n", \
-			       obd->obd_name, obd->obd_minor);  \
-		return err;				    \
-	}						       \
-} while (0)
-
-#define EXP_CHECK_MD_OP(exp, op)				\
-do {							    \
-	if ((exp) == NULL) {				    \
-		CERROR("obd_" #op ": NULL export\n");	   \
-		return -ENODEV;				\
-	}						       \
-	if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) {   \
-		CERROR("obd_" #op ": cleaned up obd\n");	\
-		return -EOPNOTSUPP;			    \
-	}						       \
-	if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \
-		CERROR("obd_" #op ": dev %s/%d no operation\n", \
-		       (exp)->exp_obd->obd_name,		\
-		       (exp)->exp_obd->obd_minor);	      \
-		return -EOPNOTSUPP;			    \
-	}						       \
-} while (0)
-
-
-#define OBD_CHECK_DT_OP(obd, op, err)			   \
-do {							    \
-	if (!OBT(obd) || !OBP((obd), op)) {		     \
-		if (err)					\
-			CERROR("obd_" #op ": dev %d no operation\n",    \
-			       obd->obd_minor);		 \
-		return err;				    \
-	}						       \
-} while (0)
-
-#define EXP_CHECK_DT_OP(exp, op)				\
-do {							    \
-	if ((exp) == NULL) {				    \
-		CERROR("obd_" #op ": NULL export\n");	   \
-		return -ENODEV;				\
-	}						       \
-	if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) {   \
-		CERROR("obd_" #op ": cleaned up obd\n");	\
-		return -EOPNOTSUPP;			    \
-	}						       \
-	if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
-		CERROR("obd_" #op ": dev %d no operation\n",    \
-		       (exp)->exp_obd->obd_minor);	      \
-		return -EOPNOTSUPP;			    \
-	}						       \
-} while (0)
-
-#define CTXT_CHECK_OP(ctxt, op, err)				 \
-do {								 \
-	if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) {	     \
-		if (err)					     \
-			CERROR("lop_" #op ": dev %d no operation\n", \
-			       ctxt->loc_obd->obd_minor);	    \
-		return err;					 \
-	}							    \
-} while (0)
-
-static inline int class_devno_max(void)
-{
-	return MAX_OBD_DEVICES;
-}
-
-static inline int obd_get_info(const struct lu_env *env,
-			       struct obd_export *exp, __u32 keylen,
-			       void *key, __u32 *vallen, void *val,
-			       struct lov_stripe_md *lsm)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, get_info);
-	EXP_COUNTER_INCREMENT(exp, get_info);
-
-	rc = OBP(exp->exp_obd, get_info)(env, exp, keylen, key, vallen, val,
-					 lsm);
-	return rc;
-}
-
-static inline int obd_set_info_async(const struct lu_env *env,
-				     struct obd_export *exp, u32 keylen,
-				     void *key, u32 vallen, void *val,
-				     struct ptlrpc_request_set *set)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, set_info_async);
-	EXP_COUNTER_INCREMENT(exp, set_info_async);
-
-	rc = OBP(exp->exp_obd, set_info_async)(env, exp, keylen, key, vallen,
-					       val, set);
-	return rc;
-}
-
-/*
- * obd-lu integration.
- *
- * Functionality is being moved into new lu_device-based layering, but some
- * pieces of configuration process are still based on obd devices.
- *
- * Specifically, lu_device_type_operations::ldto_device_alloc() methods fully
- * subsume ->o_setup() methods of obd devices they replace. The same for
- * lu_device_operations::ldo_process_config() and ->o_process_config(). As a
- * result, obd_setup() and obd_process_config() branch and call one XOR
- * another.
- *
- * Yet neither lu_device_type_operations::ldto_device_fini() nor
- * lu_device_type_operations::ldto_device_free() fully implement the
- * functionality of ->o_precleanup() and ->o_cleanup() they override. Hence,
- * obd_precleanup() and obd_cleanup() call both lu_device and obd operations.
- */
-
-#define DECLARE_LU_VARS(ldt, d)		 \
-	struct lu_device_type *ldt;       \
-	struct lu_device *d
-
-static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
-{
-	int rc;
-	DECLARE_LU_VARS(ldt, d);
-
-	ldt = obd->obd_type->typ_lu;
-	if (ldt != NULL) {
-		struct lu_context  session_ctx;
-		struct lu_env env;
-		lu_context_init(&session_ctx, LCT_SESSION);
-		session_ctx.lc_thread = NULL;
-		lu_context_enter(&session_ctx);
-
-		rc = lu_env_init(&env, ldt->ldt_ctx_tags);
-		if (rc == 0) {
-			env.le_ses = &session_ctx;
-			d = ldt->ldt_ops->ldto_device_alloc(&env, ldt, cfg);
-			lu_env_fini(&env);
-			if (!IS_ERR(d)) {
-				obd->obd_lu_dev = d;
-				d->ld_obd = obd;
-				rc = 0;
-			} else
-				rc = PTR_ERR(d);
-		}
-		lu_context_exit(&session_ctx);
-		lu_context_fini(&session_ctx);
-
-	} else {
-		OBD_CHECK_DT_OP(obd, setup, -EOPNOTSUPP);
-		OBD_COUNTER_INCREMENT(obd, setup);
-		rc = OBP(obd, setup)(obd, cfg);
-	}
-	return rc;
-}
-
-static inline int obd_precleanup(struct obd_device *obd,
-				 enum obd_cleanup_stage cleanup_stage)
-{
-	int rc;
-	DECLARE_LU_VARS(ldt, d);
-
-	rc = obd_check_dev(obd);
-	if (rc)
-		return rc;
-	ldt = obd->obd_type->typ_lu;
-	d = obd->obd_lu_dev;
-	if (ldt != NULL && d != NULL) {
-		if (cleanup_stage == OBD_CLEANUP_EXPORTS) {
-			struct lu_env env;
-
-			rc = lu_env_init(&env, ldt->ldt_ctx_tags);
-			if (rc == 0) {
-				ldt->ldt_ops->ldto_device_fini(&env, d);
-				lu_env_fini(&env);
-			}
-		}
-	}
-	OBD_CHECK_DT_OP(obd, precleanup, 0);
-	OBD_COUNTER_INCREMENT(obd, precleanup);
-
-	rc = OBP(obd, precleanup)(obd, cleanup_stage);
-	return rc;
-}
-
-static inline int obd_cleanup(struct obd_device *obd)
-{
-	int rc;
-	DECLARE_LU_VARS(ldt, d);
-
-	rc = obd_check_dev(obd);
-	if (rc)
-		return rc;
-
-	ldt = obd->obd_type->typ_lu;
-	d = obd->obd_lu_dev;
-	if (ldt != NULL && d != NULL) {
-		struct lu_env env;
-
-		rc = lu_env_init(&env, ldt->ldt_ctx_tags);
-		if (rc == 0) {
-			ldt->ldt_ops->ldto_device_free(&env, d);
-			lu_env_fini(&env);
-			obd->obd_lu_dev = NULL;
-		}
-	}
-	OBD_CHECK_DT_OP(obd, cleanup, 0);
-	OBD_COUNTER_INCREMENT(obd, cleanup);
-
-	rc = OBP(obd, cleanup)(obd);
-	return rc;
-}
-
-static inline void obd_cleanup_client_import(struct obd_device *obd)
-{
-	/* If we set up but never connected, the
-	   client import will not have been cleaned. */
-	down_write(&obd->u.cli.cl_sem);
-	if (obd->u.cli.cl_import) {
-		struct obd_import *imp;
-		imp = obd->u.cli.cl_import;
-		CDEBUG(D_CONFIG, "%s: client import never connected\n",
-		       obd->obd_name);
-		ptlrpc_invalidate_import(imp);
-		if (imp->imp_rq_pool) {
-			ptlrpc_free_rq_pool(imp->imp_rq_pool);
-			imp->imp_rq_pool = NULL;
-		}
-		client_destroy_import(imp);
-		obd->u.cli.cl_import = NULL;
-	}
-	up_write(&obd->u.cli.cl_sem);
-}
-
-static inline int
-obd_process_config(struct obd_device *obd, int datalen, void *data)
-{
-	int rc;
-	DECLARE_LU_VARS(ldt, d);
-
-	rc = obd_check_dev(obd);
-	if (rc)
-		return rc;
-
-	obd->obd_process_conf = 1;
-	ldt = obd->obd_type->typ_lu;
-	d = obd->obd_lu_dev;
-	if (ldt != NULL && d != NULL) {
-		struct lu_env env;
-
-		rc = lu_env_init(&env, ldt->ldt_ctx_tags);
-		if (rc == 0) {
-			rc = d->ld_ops->ldo_process_config(&env, d, data);
-			lu_env_fini(&env);
-		}
-	} else {
-		OBD_CHECK_DT_OP(obd, process_config, -EOPNOTSUPP);
-		rc = OBP(obd, process_config)(obd, datalen, data);
-	}
-	OBD_COUNTER_INCREMENT(obd, process_config);
-	obd->obd_process_conf = 0;
-
-	return rc;
-}
-
-/* Pack an in-memory MD struct for storage on disk.
- * Returns +ve size of packed MD (0 for free), or -ve error.
- *
- * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
- * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
- * If @*disk_tgt == NULL, it will be allocated
- */
-static inline int obd_packmd(struct obd_export *exp,
-			     struct lov_mds_md **disk_tgt,
-			     struct lov_stripe_md *mem_src)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, packmd);
-	EXP_COUNTER_INCREMENT(exp, packmd);
-
-	rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
-	return rc;
-}
-
-static inline int obd_size_diskmd(struct obd_export *exp,
-				  struct lov_stripe_md *mem_src)
-{
-	return obd_packmd(exp, NULL, mem_src);
-}
-
-static inline int obd_free_diskmd(struct obd_export *exp,
-				  struct lov_mds_md **disk_tgt)
-{
-	LASSERT(disk_tgt);
-	LASSERT(*disk_tgt);
-	/*
-	 * LU-2590, for caller's convenience, *disk_tgt could be host
-	 * endianness, it needs swab to LE if necessary, while just
-	 * lov_mds_md header needs it for figuring out how much memory
-	 * needs to be freed.
-	 */
-	if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
-	    (((*disk_tgt)->lmm_magic == LOV_MAGIC_V1) ||
-	     ((*disk_tgt)->lmm_magic == LOV_MAGIC_V3)))
-		lustre_swab_lov_mds_md(*disk_tgt);
-	return obd_packmd(exp, disk_tgt, NULL);
-}
-
-/* Unpack an MD struct from disk to in-memory format.
- * Returns +ve size of unpacked MD (0 for free), or -ve error.
- *
- * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
- * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
- * If @*mem_tgt == NULL, it will be allocated
- */
-static inline int obd_unpackmd(struct obd_export *exp,
-			       struct lov_stripe_md **mem_tgt,
-			       struct lov_mds_md *disk_src,
-			       int disk_len)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, unpackmd);
-	EXP_COUNTER_INCREMENT(exp, unpackmd);
-
-	rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
-	return rc;
-}
-
-/* helper functions */
-static inline int obd_alloc_memmd(struct obd_export *exp,
-				  struct lov_stripe_md **mem_tgt)
-{
-	LASSERT(mem_tgt);
-	LASSERT(*mem_tgt == NULL);
-	return obd_unpackmd(exp, mem_tgt, NULL, 0);
-}
-
-static inline int obd_free_memmd(struct obd_export *exp,
-				 struct lov_stripe_md **mem_tgt)
-{
-	int rc;
-
-	LASSERT(mem_tgt);
-	LASSERT(*mem_tgt);
-	rc = obd_unpackmd(exp, mem_tgt, NULL, 0);
-	*mem_tgt = NULL;
-	return rc;
-}
-
-static inline int obd_create(const struct lu_env *env, struct obd_export *exp,
-			     struct obdo *obdo, struct lov_stripe_md **ea,
-			     struct obd_trans_info *oti)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, create);
-	EXP_COUNTER_INCREMENT(exp, create);
-
-	rc = OBP(exp->exp_obd, create)(env, exp, obdo, ea, oti);
-	return rc;
-}
-
-static inline int obd_destroy(const struct lu_env *env, struct obd_export *exp,
-			      struct obdo *obdo, struct lov_stripe_md *ea,
-			      struct obd_trans_info *oti,
-			      struct obd_export *md_exp, void *capa)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, destroy);
-	EXP_COUNTER_INCREMENT(exp, destroy);
-
-	rc = OBP(exp->exp_obd, destroy)(env, exp, obdo, ea, oti, md_exp, capa);
-	return rc;
-}
-
-static inline int obd_getattr(const struct lu_env *env, struct obd_export *exp,
-			      struct obd_info *oinfo)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, getattr);
-	EXP_COUNTER_INCREMENT(exp, getattr);
-
-	rc = OBP(exp->exp_obd, getattr)(env, exp, oinfo);
-	return rc;
-}
-
-static inline int obd_getattr_async(struct obd_export *exp,
-				    struct obd_info *oinfo,
-				    struct ptlrpc_request_set *set)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, getattr_async);
-	EXP_COUNTER_INCREMENT(exp, getattr_async);
-
-	rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
-	return rc;
-}
-
-static inline int obd_setattr(const struct lu_env *env, struct obd_export *exp,
-			      struct obd_info *oinfo,
-			      struct obd_trans_info *oti)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, setattr);
-	EXP_COUNTER_INCREMENT(exp, setattr);
-
-	rc = OBP(exp->exp_obd, setattr)(env, exp, oinfo, oti);
-	return rc;
-}
-
-/* This performs all the requests set init/wait/destroy actions. */
-static inline int obd_setattr_rqset(struct obd_export *exp,
-				    struct obd_info *oinfo,
-				    struct obd_trans_info *oti)
-{
-	struct ptlrpc_request_set *set = NULL;
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, setattr_async);
-	EXP_COUNTER_INCREMENT(exp, setattr_async);
-
-	set =  ptlrpc_prep_set();
-	if (set == NULL)
-		return -ENOMEM;
-
-	rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
-	if (rc == 0)
-		rc = ptlrpc_set_wait(set);
-	ptlrpc_set_destroy(set);
-	return rc;
-}
-
-/* This adds all the requests into @set if @set != NULL, otherwise
-   all requests are sent asynchronously without waiting for response. */
-static inline int obd_setattr_async(struct obd_export *exp,
-				    struct obd_info *oinfo,
-				    struct obd_trans_info *oti,
-				    struct ptlrpc_request_set *set)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, setattr_async);
-	EXP_COUNTER_INCREMENT(exp, setattr_async);
-
-	rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
-	return rc;
-}
-
-static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
-			       int priority)
-{
-	struct obd_device *obd = imp->imp_obd;
-	int rc;
-
-	rc = obd_check_dev_active(obd);
-	if (rc)
-		return rc;
-	OBD_CHECK_DT_OP(obd, add_conn, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, add_conn);
-
-	rc = OBP(obd, add_conn)(imp, uuid, priority);
-	return rc;
-}
-
-static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
-{
-	struct obd_device *obd = imp->imp_obd;
-	int rc;
-
-	rc = obd_check_dev_active(obd);
-	if (rc)
-		return rc;
-	OBD_CHECK_DT_OP(obd, del_conn, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, del_conn);
-
-	rc = OBP(obd, del_conn)(imp, uuid);
-	return rc;
-}
-
-static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp)
-{
-	struct obd_uuid *uuid;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, get_uuid, NULL);
-	EXP_COUNTER_INCREMENT(exp, get_uuid);
-
-	uuid = OBP(exp->exp_obd, get_uuid)(exp);
-	return uuid;
-}
-
-/** Create a new /a exp on device /a obd for the uuid /a cluuid
- * @param exp New export handle
- * @param d Connect data, supported flags are set, flags also understood
- *    by obd are returned.
- */
-static inline int obd_connect(const struct lu_env *env,
-			      struct obd_export **exp, struct obd_device *obd,
-			      struct obd_uuid *cluuid,
-			      struct obd_connect_data *data,
-			      void *localdata)
-{
-	int rc;
-	__u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition
-						   * check */
-
-	rc = obd_check_dev_active(obd);
-	if (rc)
-		return rc;
-	OBD_CHECK_DT_OP(obd, connect, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, connect);
-
-	rc = OBP(obd, connect)(env, exp, obd, cluuid, data, localdata);
-	/* check that only subset is granted */
-	LASSERT(ergo(data != NULL, (data->ocd_connect_flags & ocf) ==
-				    data->ocd_connect_flags));
-	return rc;
-}
-
-static inline int obd_reconnect(const struct lu_env *env,
-				struct obd_export *exp,
-				struct obd_device *obd,
-				struct obd_uuid *cluuid,
-				struct obd_connect_data *d,
-				void *localdata)
-{
-	int rc;
-	__u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition
-						   * check */
-
-	rc = obd_check_dev_active(obd);
-	if (rc)
-		return rc;
-	OBD_CHECK_DT_OP(obd, reconnect, 0);
-	OBD_COUNTER_INCREMENT(obd, reconnect);
-
-	rc = OBP(obd, reconnect)(env, exp, obd, cluuid, d, localdata);
-	/* check that only subset is granted */
-	LASSERT(ergo(d != NULL,
-		     (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
-	return rc;
-}
-
-static inline int obd_disconnect(struct obd_export *exp)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, disconnect);
-	EXP_COUNTER_INCREMENT(exp, disconnect);
-
-	rc = OBP(exp->exp_obd, disconnect)(exp);
-	return rc;
-}
-
-static inline int obd_fid_init(struct obd_device *obd, struct obd_export *exp,
-			       enum lu_cli_type type)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(obd, fid_init, 0);
-	OBD_COUNTER_INCREMENT(obd, fid_init);
-
-	rc = OBP(obd, fid_init)(obd, exp, type);
-	return rc;
-}
-
-static inline int obd_fid_fini(struct obd_device *obd)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(obd, fid_fini, 0);
-	OBD_COUNTER_INCREMENT(obd, fid_fini);
-
-	rc = OBP(obd, fid_fini)(obd);
-	return rc;
-}
-
-static inline int obd_fid_alloc(struct obd_export *exp,
-				struct lu_fid *fid,
-				struct md_op_data *op_data)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, fid_alloc);
-	EXP_COUNTER_INCREMENT(exp, fid_alloc);
-
-	rc = OBP(exp->exp_obd, fid_alloc)(exp, fid, op_data);
-	return rc;
-}
-
-static inline int obd_pool_new(struct obd_device *obd, char *poolname)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(obd, pool_new, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, pool_new);
-
-	rc = OBP(obd, pool_new)(obd, poolname);
-	return rc;
-}
-
-static inline int obd_pool_del(struct obd_device *obd, char *poolname)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(obd, pool_del, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, pool_del);
-
-	rc = OBP(obd, pool_del)(obd, poolname);
-	return rc;
-}
-
-static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(obd, pool_add, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, pool_add);
-
-	rc = OBP(obd, pool_add)(obd, poolname, ostname);
-	return rc;
-}
-
-static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(obd, pool_rem, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, pool_rem);
-
-	rc = OBP(obd, pool_rem)(obd, poolname, ostname);
-	return rc;
-}
-
-static inline void obd_getref(struct obd_device *obd)
-{
-	if (OBT(obd) && OBP(obd, getref)) {
-		OBD_COUNTER_INCREMENT(obd, getref);
-		OBP(obd, getref)(obd);
-	}
-}
-
-static inline void obd_putref(struct obd_device *obd)
-{
-	if (OBT(obd) && OBP(obd, putref)) {
-		OBD_COUNTER_INCREMENT(obd, putref);
-		OBP(obd, putref)(obd);
-	}
-}
-
-static inline int obd_init_export(struct obd_export *exp)
-{
-	int rc = 0;
-
-	if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
-	    OBP((exp)->exp_obd, init_export))
-		rc = OBP(exp->exp_obd, init_export)(exp);
-	return rc;
-}
-
-static inline int obd_destroy_export(struct obd_export *exp)
-{
-	if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
-	    OBP((exp)->exp_obd, destroy_export))
-		OBP(exp->exp_obd, destroy_export)(exp);
-	return 0;
-}
-
-/* @max_age is the oldest time in jiffies that we accept using a cached data.
- * If the cache is older than @max_age we will get a new value from the
- * target.  Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
-static inline int obd_statfs_async(struct obd_export *exp,
-				   struct obd_info *oinfo,
-				   __u64 max_age,
-				   struct ptlrpc_request_set *rqset)
-{
-	int rc = 0;
-	struct obd_device *obd;
-
-	if (exp == NULL || exp->exp_obd == NULL)
-		return -EINVAL;
-
-	obd = exp->exp_obd;
-	OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, statfs);
-
-	CDEBUG(D_SUPER, "%s: osfs %p age %llu, max_age %llu\n",
-	       obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
-	if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
-		rc = OBP(obd, statfs_async)(exp, oinfo, max_age, rqset);
-	} else {
-		CDEBUG(D_SUPER,
-		       "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
-		       obd->obd_name, &obd->obd_osfs,
-		       obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
-		       obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
-		spin_lock(&obd->obd_osfs_lock);
-		memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
-		spin_unlock(&obd->obd_osfs_lock);
-		oinfo->oi_flags |= OBD_STATFS_FROM_CACHE;
-		if (oinfo->oi_cb_up)
-			oinfo->oi_cb_up(oinfo, 0);
-	}
-	return rc;
-}
-
-static inline int obd_statfs_rqset(struct obd_export *exp,
-				   struct obd_statfs *osfs, __u64 max_age,
-				   __u32 flags)
-{
-	struct ptlrpc_request_set *set = NULL;
-	struct obd_info oinfo = { { { 0 } } };
-	int rc = 0;
-
-	set =  ptlrpc_prep_set();
-	if (set == NULL)
-		return -ENOMEM;
-
-	oinfo.oi_osfs = osfs;
-	oinfo.oi_flags = flags;
-	rc = obd_statfs_async(exp, &oinfo, max_age, set);
-	if (rc == 0)
-		rc = ptlrpc_set_wait(set);
-	ptlrpc_set_destroy(set);
-	return rc;
-}
-
-/* @max_age is the oldest time in jiffies that we accept using a cached data.
- * If the cache is older than @max_age we will get a new value from the
- * target.  Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
-static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp,
-			     struct obd_statfs *osfs, __u64 max_age,
-			     __u32 flags)
-{
-	int rc = 0;
-	struct obd_device *obd = exp->exp_obd;
-
-	if (obd == NULL)
-		return -EINVAL;
-
-	OBD_CHECK_DT_OP(obd, statfs, -EOPNOTSUPP);
-	OBD_COUNTER_INCREMENT(obd, statfs);
-
-	CDEBUG(D_SUPER, "osfs %llu, max_age %llu\n",
-	       obd->obd_osfs_age, max_age);
-	if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
-		rc = OBP(obd, statfs)(env, exp, osfs, max_age, flags);
-		if (rc == 0) {
-			spin_lock(&obd->obd_osfs_lock);
-			memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
-			obd->obd_osfs_age = cfs_time_current_64();
-			spin_unlock(&obd->obd_osfs_lock);
-		}
-	} else {
-		CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n",
-		       obd->obd_name, &obd->obd_osfs,
-		       obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
-		       obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
-		spin_lock(&obd->obd_osfs_lock);
-		memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
-		spin_unlock(&obd->obd_osfs_lock);
-	}
-	return rc;
-}
-
-static inline int obd_preprw(const struct lu_env *env, int cmd,
-			     struct obd_export *exp, struct obdo *oa,
-			     int objcount, struct obd_ioobj *obj,
-			     struct niobuf_remote *remote, int *pages,
-			     struct niobuf_local *local,
-			     struct obd_trans_info *oti,
-			     struct lustre_capa *capa)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, preprw);
-	EXP_COUNTER_INCREMENT(exp, preprw);
-
-	rc = OBP(exp->exp_obd, preprw)(env, cmd, exp, oa, objcount, obj, remote,
-				       pages, local, oti, capa);
-	return rc;
-}
-
-static inline int obd_commitrw(const struct lu_env *env, int cmd,
-			       struct obd_export *exp, struct obdo *oa,
-			       int objcount, struct obd_ioobj *obj,
-			       struct niobuf_remote *rnb, int pages,
-			       struct niobuf_local *local,
-			       struct obd_trans_info *oti, int rc)
-{
-	EXP_CHECK_DT_OP(exp, commitrw);
-	EXP_COUNTER_INCREMENT(exp, commitrw);
-
-	rc = OBP(exp->exp_obd, commitrw)(env, cmd, exp, oa, objcount, obj,
-					 rnb, pages, local, oti, rc);
-	return rc;
-}
-
-static inline int obd_adjust_kms(struct obd_export *exp,
-				 struct lov_stripe_md *lsm, u64 size,
-				 int shrink)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, adjust_kms);
-	EXP_COUNTER_INCREMENT(exp, adjust_kms);
-
-	rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
-	return rc;
-}
-
-static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
-				int len, void *karg, void *uarg)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, iocontrol);
-	EXP_COUNTER_INCREMENT(exp, iocontrol);
-
-	rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
-	return rc;
-}
-
-static inline int obd_find_cbdata(struct obd_export *exp,
-				  struct lov_stripe_md *lsm,
-				  ldlm_iterator_t it, void *data)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, find_cbdata);
-	EXP_COUNTER_INCREMENT(exp, find_cbdata);
-
-	rc = OBP(exp->exp_obd, find_cbdata)(exp, lsm, it, data);
-	return rc;
-}
-
-static inline void obd_import_event(struct obd_device *obd,
-				    struct obd_import *imp,
-				    enum obd_import_event event)
-{
-	if (!obd) {
-		CERROR("NULL device\n");
-		return;
-	}
-	if (obd->obd_set_up && OBP(obd, import_event)) {
-		OBD_COUNTER_INCREMENT(obd, import_event);
-		OBP(obd, import_event)(obd, imp, event);
-	}
-}
-
-static inline int obd_notify(struct obd_device *obd,
-			     struct obd_device *watched,
-			     enum obd_notify_event ev,
-			     void *data)
-{
-	int rc;
-
-	rc = obd_check_dev(obd);
-	if (rc)
-		return rc;
-
-	/* the check for async_recov is a complete hack - I'm hereby
-	   overloading the meaning to also mean "this was called from
-	   mds_postsetup".  I know that my mds is able to handle notifies
-	   by this point, and it needs to get them to execute mds_postrecov. */
-	if (!obd->obd_set_up && !obd->obd_async_recov) {
-		CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
-		return -EINVAL;
-	}
-
-	if (!OBP(obd, notify)) {
-		CDEBUG(D_HA, "obd %s has no notify handler\n", obd->obd_name);
-		return -ENOSYS;
-	}
-
-	OBD_COUNTER_INCREMENT(obd, notify);
-	rc = OBP(obd, notify)(obd, watched, ev, data);
-	return rc;
-}
-
-static inline int obd_notify_observer(struct obd_device *observer,
-				      struct obd_device *observed,
-				      enum obd_notify_event ev,
-				      void *data)
-{
-	int rc1;
-	int rc2;
-
-	struct obd_notify_upcall *onu;
-
-	if (observer->obd_observer)
-		rc1 = obd_notify(observer->obd_observer, observed, ev, data);
-	else
-		rc1 = 0;
-	/*
-	 * Also, call non-obd listener, if any
-	 */
-	onu = &observer->obd_upcall;
-	if (onu->onu_upcall != NULL)
-		rc2 = onu->onu_upcall(observer, observed, ev,
-				      onu->onu_owner, NULL);
-	else
-		rc2 = 0;
-
-	return rc1 ? rc1 : rc2;
-}
-
-static inline int obd_quotacheck(struct obd_export *exp,
-				 struct obd_quotactl *oqctl)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, quotacheck);
-	EXP_COUNTER_INCREMENT(exp, quotacheck);
-
-	rc = OBP(exp->exp_obd, quotacheck)(exp->exp_obd, exp, oqctl);
-	return rc;
-}
-
-static inline int obd_quotactl(struct obd_export *exp,
-			       struct obd_quotactl *oqctl)
-{
-	int rc;
-
-	EXP_CHECK_DT_OP(exp, quotactl);
-	EXP_COUNTER_INCREMENT(exp, quotactl);
-
-	rc = OBP(exp->exp_obd, quotactl)(exp->exp_obd, exp, oqctl);
-	return rc;
-}
-
-static inline int obd_health_check(const struct lu_env *env,
-				   struct obd_device *obd)
-{
-	/* returns: 0 on healthy
-	 *	 >0 on unhealthy + reason code/flag
-	 *	    however the only supported reason == 1 right now
-	 *	    We'll need to define some better reasons
-	 *	    or flags in the future.
-	 *	 <0 on error
-	 */
-	int rc;
-
-	/* don't use EXP_CHECK_DT_OP, because NULL method is normal here */
-	if (obd == NULL || !OBT(obd)) {
-		CERROR("cleaned up obd\n");
-		return -EOPNOTSUPP;
-	}
-	if (!obd->obd_set_up || obd->obd_stopping)
-		return 0;
-	if (!OBP(obd, health_check))
-		return 0;
-
-	rc = OBP(obd, health_check)(env, obd);
-	return rc;
-}
-
-static inline int obd_register_observer(struct obd_device *obd,
-					struct obd_device *observer)
-{
-	int rc;
-
-	rc = obd_check_dev(obd);
-	if (rc)
-		return rc;
-	down_write(&obd->obd_observer_link_sem);
-	if (obd->obd_observer && observer) {
-		up_write(&obd->obd_observer_link_sem);
-		return -EALREADY;
-	}
-	obd->obd_observer = observer;
-	up_write(&obd->obd_observer_link_sem);
-	return 0;
-}
-
-#if 0
-static inline int obd_register_page_removal_cb(struct obd_export *exp,
-					       obd_page_removal_cb_t cb,
-					       obd_pin_extent_cb pin_cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, register_page_removal_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, register_page_removal_cb);
-
-	rc = OBP(exp->exp_obd, register_page_removal_cb)(exp, cb, pin_cb);
-	return rc;
-}
-
-static inline int obd_unregister_page_removal_cb(struct obd_export *exp,
-						 obd_page_removal_cb_t cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, unregister_page_removal_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_page_removal_cb);
-
-	rc = OBP(exp->exp_obd, unregister_page_removal_cb)(exp, cb);
-	return rc;
-}
-
-static inline int obd_register_lock_cancel_cb(struct obd_export *exp,
-					      obd_lock_cancel_cb cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, register_lock_cancel_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, register_lock_cancel_cb);
-
-	rc = OBP(exp->exp_obd, register_lock_cancel_cb)(exp, cb);
-	return rc;
-}
-
-static inline int obd_unregister_lock_cancel_cb(struct obd_export *exp,
-						 obd_lock_cancel_cb cb)
-{
-	int rc;
-
-	OBD_CHECK_DT_OP(exp->exp_obd, unregister_lock_cancel_cb, 0);
-	OBD_COUNTER_INCREMENT(exp->exp_obd, unregister_lock_cancel_cb);
-
-	rc = OBP(exp->exp_obd, unregister_lock_cancel_cb)(exp, cb);
-	return rc;
-}
-#endif
-
-/* metadata helpers */
-static inline int md_getstatus(struct obd_export *exp,
-			       struct lu_fid *fid, struct obd_capa **pc)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, getstatus);
-	EXP_MD_COUNTER_INCREMENT(exp, getstatus);
-	rc = MDP(exp->exp_obd, getstatus)(exp, fid, pc);
-	return rc;
-}
-
-static inline int md_getattr(struct obd_export *exp, struct md_op_data *op_data,
-			     struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, getattr);
-	EXP_MD_COUNTER_INCREMENT(exp, getattr);
-	rc = MDP(exp->exp_obd, getattr)(exp, op_data, request);
-	return rc;
-}
-
-static inline int md_null_inode(struct obd_export *exp,
-				   const struct lu_fid *fid)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, null_inode);
-	EXP_MD_COUNTER_INCREMENT(exp, null_inode);
-	rc = MDP(exp->exp_obd, null_inode)(exp, fid);
-	return rc;
-}
-
-static inline int md_find_cbdata(struct obd_export *exp,
-				 const struct lu_fid *fid,
-				 ldlm_iterator_t it, void *data)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, find_cbdata);
-	EXP_MD_COUNTER_INCREMENT(exp, find_cbdata);
-	rc = MDP(exp->exp_obd, find_cbdata)(exp, fid, it, data);
-	return rc;
-}
-
-static inline int md_close(struct obd_export *exp, struct md_op_data *op_data,
-			   struct md_open_data *mod,
-			   struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, close);
-	EXP_MD_COUNTER_INCREMENT(exp, close);
-	rc = MDP(exp->exp_obd, close)(exp, op_data, mod, request);
-	return rc;
-}
-
-static inline int md_create(struct obd_export *exp, struct md_op_data *op_data,
-			    const void *data, int datalen, int mode, __u32 uid,
-			    __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
-			    struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, create);
-	EXP_MD_COUNTER_INCREMENT(exp, create);
-	rc = MDP(exp->exp_obd, create)(exp, op_data, data, datalen, mode,
-				       uid, gid, cap_effective, rdev, request);
-	return rc;
-}
-
-static inline int md_done_writing(struct obd_export *exp,
-				  struct md_op_data *op_data,
-				  struct md_open_data *mod)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, done_writing);
-	EXP_MD_COUNTER_INCREMENT(exp, done_writing);
-	rc = MDP(exp->exp_obd, done_writing)(exp, op_data, mod);
-	return rc;
-}
-
-static inline int md_enqueue(struct obd_export *exp,
-			     struct ldlm_enqueue_info *einfo,
-			     struct lookup_intent *it,
-			     struct md_op_data *op_data,
-			     struct lustre_handle *lockh,
-			     void *lmm, int lmmsize,
-			     struct ptlrpc_request **req,
-			     __u64 extra_lock_flags)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, enqueue);
-	EXP_MD_COUNTER_INCREMENT(exp, enqueue);
-	rc = MDP(exp->exp_obd, enqueue)(exp, einfo, it, op_data, lockh,
-					lmm, lmmsize, req, extra_lock_flags);
-	return rc;
-}
-
-static inline int md_getattr_name(struct obd_export *exp,
-				  struct md_op_data *op_data,
-				  struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, getattr_name);
-	EXP_MD_COUNTER_INCREMENT(exp, getattr_name);
-	rc = MDP(exp->exp_obd, getattr_name)(exp, op_data, request);
-	return rc;
-}
-
-static inline int md_intent_lock(struct obd_export *exp,
-				 struct md_op_data *op_data, void *lmm,
-				 int lmmsize, struct lookup_intent *it,
-				 int lookup_flags, struct ptlrpc_request **reqp,
-				 ldlm_blocking_callback cb_blocking,
-				 __u64 extra_lock_flags)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, intent_lock);
-	EXP_MD_COUNTER_INCREMENT(exp, intent_lock);
-	rc = MDP(exp->exp_obd, intent_lock)(exp, op_data, lmm, lmmsize,
-					    it, lookup_flags, reqp, cb_blocking,
-					    extra_lock_flags);
-	return rc;
-}
-
-static inline int md_link(struct obd_export *exp, struct md_op_data *op_data,
-			  struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, link);
-	EXP_MD_COUNTER_INCREMENT(exp, link);
-	rc = MDP(exp->exp_obd, link)(exp, op_data, request);
-	return rc;
-}
-
-static inline int md_rename(struct obd_export *exp, struct md_op_data *op_data,
-			    const char *old, int oldlen, const char *new,
-			    int newlen, struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, rename);
-	EXP_MD_COUNTER_INCREMENT(exp, rename);
-	rc = MDP(exp->exp_obd, rename)(exp, op_data, old, oldlen, new,
-				       newlen, request);
-	return rc;
-}
-
-static inline int md_is_subdir(struct obd_export *exp,
-			       const struct lu_fid *pfid,
-			       const struct lu_fid *cfid,
-			       struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, is_subdir);
-	EXP_MD_COUNTER_INCREMENT(exp, is_subdir);
-	rc = MDP(exp->exp_obd, is_subdir)(exp, pfid, cfid, request);
-	return rc;
-}
-
-static inline int md_setattr(struct obd_export *exp, struct md_op_data *op_data,
-			     void *ea, int ealen, void *ea2, int ea2len,
-			     struct ptlrpc_request **request,
-			     struct md_open_data **mod)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, setattr);
-	EXP_MD_COUNTER_INCREMENT(exp, setattr);
-	rc = MDP(exp->exp_obd, setattr)(exp, op_data, ea, ealen,
-					ea2, ea2len, request, mod);
-	return rc;
-}
-
-static inline int md_sync(struct obd_export *exp, const struct lu_fid *fid,
-			  struct obd_capa *oc, struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, sync);
-	EXP_MD_COUNTER_INCREMENT(exp, sync);
-	rc = MDP(exp->exp_obd, sync)(exp, fid, oc, request);
-	return rc;
-}
-
-static inline int md_readpage(struct obd_export *exp, struct md_op_data *opdata,
-			      struct page **pages,
-			      struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, readpage);
-	EXP_MD_COUNTER_INCREMENT(exp, readpage);
-	rc = MDP(exp->exp_obd, readpage)(exp, opdata, pages, request);
-	return rc;
-}
-
-static inline int md_unlink(struct obd_export *exp, struct md_op_data *op_data,
-			    struct ptlrpc_request **request)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, unlink);
-	EXP_MD_COUNTER_INCREMENT(exp, unlink);
-	rc = MDP(exp->exp_obd, unlink)(exp, op_data, request);
-	return rc;
-}
-
-static inline int md_get_lustre_md(struct obd_export *exp,
-				   struct ptlrpc_request *req,
-				   struct obd_export *dt_exp,
-				   struct obd_export *md_exp,
-				   struct lustre_md *md)
-{
-	EXP_CHECK_MD_OP(exp, get_lustre_md);
-	EXP_MD_COUNTER_INCREMENT(exp, get_lustre_md);
-	return MDP(exp->exp_obd, get_lustre_md)(exp, req, dt_exp, md_exp, md);
-}
-
-static inline int md_free_lustre_md(struct obd_export *exp,
-				    struct lustre_md *md)
-{
-	EXP_CHECK_MD_OP(exp, free_lustre_md);
-	EXP_MD_COUNTER_INCREMENT(exp, free_lustre_md);
-	return MDP(exp->exp_obd, free_lustre_md)(exp, md);
-}
-
-static inline int md_setxattr(struct obd_export *exp,
-			      const struct lu_fid *fid, struct obd_capa *oc,
-			      u64 valid, const char *name,
-			      const char *input, int input_size,
-			      int output_size, int flags, __u32 suppgid,
-			      struct ptlrpc_request **request)
-{
-	EXP_CHECK_MD_OP(exp, setxattr);
-	EXP_MD_COUNTER_INCREMENT(exp, setxattr);
-	return MDP(exp->exp_obd, setxattr)(exp, fid, oc, valid, name, input,
-					   input_size, output_size, flags,
-					   suppgid, request);
-}
-
-static inline int md_getxattr(struct obd_export *exp,
-			      const struct lu_fid *fid, struct obd_capa *oc,
-			      u64 valid, const char *name,
-			      const char *input, int input_size,
-			      int output_size, int flags,
-			      struct ptlrpc_request **request)
-{
-	EXP_CHECK_MD_OP(exp, getxattr);
-	EXP_MD_COUNTER_INCREMENT(exp, getxattr);
-	return MDP(exp->exp_obd, getxattr)(exp, fid, oc, valid, name, input,
-					   input_size, output_size, flags,
-					   request);
-}
-
-static inline int md_set_open_replay_data(struct obd_export *exp,
-					  struct obd_client_handle *och,
-					  struct lookup_intent *it)
-{
-	EXP_CHECK_MD_OP(exp, set_open_replay_data);
-	EXP_MD_COUNTER_INCREMENT(exp, set_open_replay_data);
-	return MDP(exp->exp_obd, set_open_replay_data)(exp, och, it);
-}
-
-static inline int md_clear_open_replay_data(struct obd_export *exp,
-					    struct obd_client_handle *och)
-{
-	EXP_CHECK_MD_OP(exp, clear_open_replay_data);
-	EXP_MD_COUNTER_INCREMENT(exp, clear_open_replay_data);
-	return MDP(exp->exp_obd, clear_open_replay_data)(exp, och);
-}
-
-static inline int md_set_lock_data(struct obd_export *exp,
-				   __u64 *lockh, void *data, __u64 *bits)
-{
-	EXP_CHECK_MD_OP(exp, set_lock_data);
-	EXP_MD_COUNTER_INCREMENT(exp, set_lock_data);
-	return MDP(exp->exp_obd, set_lock_data)(exp, lockh, data, bits);
-}
-
-static inline int md_cancel_unused(struct obd_export *exp,
-				   const struct lu_fid *fid,
-				   ldlm_policy_data_t *policy,
-				   ldlm_mode_t mode,
-				   ldlm_cancel_flags_t flags,
-				   void *opaque)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, cancel_unused);
-	EXP_MD_COUNTER_INCREMENT(exp, cancel_unused);
-
-	rc = MDP(exp->exp_obd, cancel_unused)(exp, fid, policy, mode,
-					      flags, opaque);
-	return rc;
-}
-
-static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
-					const struct lu_fid *fid,
-					ldlm_type_t type,
-					ldlm_policy_data_t *policy,
-					ldlm_mode_t mode,
-					struct lustre_handle *lockh)
-{
-	EXP_CHECK_MD_OP(exp, lock_match);
-	EXP_MD_COUNTER_INCREMENT(exp, lock_match);
-	return MDP(exp->exp_obd, lock_match)(exp, flags, fid, type,
-					     policy, mode, lockh);
-}
-
-static inline int md_init_ea_size(struct obd_export *exp, int easize,
-				  int def_asize, int cookiesize,
-				  int def_cookiesize)
-{
-	EXP_CHECK_MD_OP(exp, init_ea_size);
-	EXP_MD_COUNTER_INCREMENT(exp, init_ea_size);
-	return MDP(exp->exp_obd, init_ea_size)(exp, easize, def_asize,
-					       cookiesize, def_cookiesize);
-}
-
-static inline int md_get_remote_perm(struct obd_export *exp,
-				     const struct lu_fid *fid,
-				     struct obd_capa *oc, __u32 suppgid,
-				     struct ptlrpc_request **request)
-{
-	EXP_CHECK_MD_OP(exp, get_remote_perm);
-	EXP_MD_COUNTER_INCREMENT(exp, get_remote_perm);
-	return MDP(exp->exp_obd, get_remote_perm)(exp, fid, oc, suppgid,
-						  request);
-}
-
-static inline int md_renew_capa(struct obd_export *exp, struct obd_capa *ocapa,
-				renew_capa_cb_t cb)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, renew_capa);
-	EXP_MD_COUNTER_INCREMENT(exp, renew_capa);
-	rc = MDP(exp->exp_obd, renew_capa)(exp, ocapa, cb);
-	return rc;
-}
-
-static inline int md_unpack_capa(struct obd_export *exp,
-				 struct ptlrpc_request *req,
-				 const struct req_msg_field *field,
-				 struct obd_capa **oc)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, unpack_capa);
-	EXP_MD_COUNTER_INCREMENT(exp, unpack_capa);
-	rc = MDP(exp->exp_obd, unpack_capa)(exp, req, field, oc);
-	return rc;
-}
-
-static inline int md_intent_getattr_async(struct obd_export *exp,
-					  struct md_enqueue_info *minfo,
-					  struct ldlm_enqueue_info *einfo)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, intent_getattr_async);
-	EXP_MD_COUNTER_INCREMENT(exp, intent_getattr_async);
-	rc = MDP(exp->exp_obd, intent_getattr_async)(exp, minfo, einfo);
-	return rc;
-}
-
-static inline int md_revalidate_lock(struct obd_export *exp,
-				     struct lookup_intent *it,
-				     struct lu_fid *fid, __u64 *bits)
-{
-	int rc;
-
-	EXP_CHECK_MD_OP(exp, revalidate_lock);
-	EXP_MD_COUNTER_INCREMENT(exp, revalidate_lock);
-	rc = MDP(exp->exp_obd, revalidate_lock)(exp, it, fid, bits);
-	return rc;
-}
-
-
-/* OBD Metadata Support */
-
-int obd_init_caches(void);
-void obd_cleanup_caches(void);
-
-/* support routines */
-extern struct kmem_cache *obdo_cachep;
-
-#define OBDO_ALLOC(ptr)						       \
-do {									  \
-	OBD_SLAB_ALLOC_PTR_GFP((ptr), obdo_cachep, GFP_NOFS);             \
-} while (0)
-
-#define OBDO_FREE(ptr)							\
-do {									  \
-	OBD_SLAB_FREE_PTR((ptr), obdo_cachep);				\
-} while (0)
-
-
-static inline void obdo2fid(struct obdo *oa, struct lu_fid *fid)
-{
-	/* something here */
-}
-
-static inline void fid2obdo(struct lu_fid *fid, struct obdo *oa)
-{
-	/* something here */
-}
-
-typedef int (*register_lwp_cb)(void *data);
-
-struct lwp_register_item {
-	struct obd_export **lri_exp;
-	register_lwp_cb	    lri_cb_func;
-	void		   *lri_cb_data;
-	struct list_head	    lri_list;
-	char		    lri_name[MTI_NAME_MAXLEN];
-};
-
-/* I'm as embarrassed about this as you are.
- *
- * <shaver> // XXX do not look into _superhack with remaining eye
- * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
-extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
-
-/* obd_mount.c */
-
-/* sysctl.c */
-int obd_sysctl_init(void);
-
-/* uuid.c  */
-typedef __u8 class_uuid_t[16];
-void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
-
-/* lustre_peer.c    */
-int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index);
-int class_add_uuid(const char *uuid, __u64 nid);
-int class_del_uuid (const char *uuid);
-int class_check_uuid(struct obd_uuid *uuid, __u64 nid);
-void class_init_uuidlist(void);
-void class_exit_uuidlist(void);
-
-/* class_obd.c */
-extern char obd_jobid_node[];
-extern struct miscdevice obd_psdev;
-extern spinlock_t obd_types_lock;
-
-/* prng.c */
-#define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t))
-
-#endif /* __LINUX_OBD_CLASS_H */
diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
deleted file mode 100644
index 18aec796a724..000000000000
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ /dev/null
@@ -1,796 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _OBD_SUPPORT
-#define _OBD_SUPPORT
-
-#include <linux/slab.h>
-#include "../../include/linux/libcfs/libcfs.h"
-#include "linux/lustre_compat25.h"
-#include "lprocfs_status.h"
-
-/* global variables */
-extern struct lprocfs_stats *obd_memory;
-enum {
-	OBD_MEMORY_STAT = 0,
-	OBD_MEMORY_PAGES_STAT = 1,
-	OBD_STATS_NUM,
-};
-
-extern unsigned int obd_debug_peer_on_timeout;
-extern unsigned int obd_dump_on_timeout;
-extern unsigned int obd_dump_on_eviction;
-/* obd_timeout should only be used for recovery, not for
-   networking / disk / timings affected by load (use Adaptive Timeouts) */
-extern unsigned int obd_timeout;	  /* seconds */
-extern unsigned int obd_timeout_set;
-extern unsigned int at_min;
-extern unsigned int at_max;
-extern unsigned int at_history;
-extern int at_early_margin;
-extern int at_extra;
-extern unsigned int obd_sync_filter;
-extern unsigned int obd_max_dirty_pages;
-extern atomic_t obd_dirty_pages;
-extern atomic_t obd_dirty_transit_pages;
-extern unsigned int obd_alloc_fail_rate;
-extern char obd_jobid_var[];
-
-/* lvfs.c */
-int obd_alloc_fail(const void *ptr, const char *name, const char *type,
-		   size_t size, const char *file, int line);
-
-/* Some hash init argument constants */
-#define HASH_POOLS_BKT_BITS 3
-#define HASH_POOLS_CUR_BITS 3
-#define HASH_POOLS_MAX_BITS 7
-#define HASH_UUID_BKT_BITS 5
-#define HASH_UUID_CUR_BITS 7
-#define HASH_UUID_MAX_BITS 12
-#define HASH_NID_BKT_BITS 5
-#define HASH_NID_CUR_BITS 7
-#define HASH_NID_MAX_BITS 12
-#define HASH_NID_STATS_BKT_BITS 5
-#define HASH_NID_STATS_CUR_BITS 7
-#define HASH_NID_STATS_MAX_BITS 12
-#define HASH_LQE_BKT_BITS 5
-#define HASH_LQE_CUR_BITS 7
-#define HASH_LQE_MAX_BITS 12
-#define HASH_CONN_BKT_BITS 5
-#define HASH_CONN_CUR_BITS 5
-#define HASH_CONN_MAX_BITS 15
-#define HASH_EXP_LOCK_BKT_BITS  5
-#define HASH_EXP_LOCK_CUR_BITS  7
-#define HASH_EXP_LOCK_MAX_BITS  16
-#define HASH_CL_ENV_BKT_BITS    5
-#define HASH_CL_ENV_BITS	10
-#define HASH_JOB_STATS_BKT_BITS 5
-#define HASH_JOB_STATS_CUR_BITS 7
-#define HASH_JOB_STATS_MAX_BITS 12
-
-/* Timeout definitions */
-#define OBD_TIMEOUT_DEFAULT	     100
-/* Time to wait for all clients to reconnect during recovery (hard limit) */
-#define OBD_RECOVERY_TIME_HARD	  (obd_timeout * 9)
-/* Time to wait for all clients to reconnect during recovery (soft limit) */
-/* Should be very conservative; must catch the first reconnect after reboot */
-#define OBD_RECOVERY_TIME_SOFT	  (obd_timeout * 3)
-/* Change recovery-small 26b time if you change this */
-#define PING_INTERVAL max(obd_timeout / 4, 1U)
-/* a bit more than maximal journal commit time in seconds */
-#define PING_INTERVAL_SHORT min(PING_INTERVAL, 7U)
-/* Client may skip 1 ping; we must wait at least 2.5. But for multiple
- * failover targets the client only pings one server at a time, and pings
- * can be lost on a loaded network. Since eviction has serious consequences,
- * and there's no urgent need to evict a client just because it's idle, we
- * should be very conservative here. */
-#define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
-#define DISK_TIMEOUT 50	  /* Beyond this we warn about disk speed */
-#define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
- /* Max connect interval for nonresponsive servers; ~50s to avoid building up
-    connect requests in the LND queues, but within obd_timeout so we don't
-    miss the recovery window */
-#define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN, obd_timeout))
-#define CONNECTION_SWITCH_INC 5  /* Connection timeout backoff */
-/* In general this should be low to have quick detection of a system
-   running on a backup server. (If it's too low, import_select_connection
-   will increase the timeout anyhow.)  */
-#define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN, obd_timeout/20)
-/* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
-#define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
-			     INITIAL_CONNECT_TIMEOUT)
-/* The min time a target should wait for clients to reconnect in recovery */
-#define OBD_RECOVERY_TIME_MIN    (2*RECONNECT_DELAY_MAX)
-#define OBD_IR_FACTOR_MIN	 1
-#define OBD_IR_FACTOR_MAX	 10
-#define OBD_IR_FACTOR_DEFAULT    (OBD_IR_FACTOR_MAX/2)
-/* default timeout for the MGS to become IR_FULL */
-#define OBD_IR_MGS_TIMEOUT       (4*obd_timeout)
-#define LONG_UNLINK 300	  /* Unlink should happen before now */
-
-/**
- * Time interval of shrink, if the client is "idle" more than this interval,
- * then the ll_grant thread will return the requested grant space to filter
- */
-#define GRANT_SHRINK_INTERVAL	    1200/*20 minutes*/
-
-#define OBD_FAIL_MDS		     0x100
-#define OBD_FAIL_MDS_HANDLE_UNPACK       0x101
-#define OBD_FAIL_MDS_GETATTR_NET	 0x102
-#define OBD_FAIL_MDS_GETATTR_PACK	0x103
-#define OBD_FAIL_MDS_READPAGE_NET	0x104
-#define OBD_FAIL_MDS_READPAGE_PACK       0x105
-#define OBD_FAIL_MDS_SENDPAGE	    0x106
-#define OBD_FAIL_MDS_REINT_NET	   0x107
-#define OBD_FAIL_MDS_REINT_UNPACK	0x108
-#define OBD_FAIL_MDS_REINT_SETATTR       0x109
-#define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
-#define OBD_FAIL_MDS_REINT_CREATE	0x10b
-#define OBD_FAIL_MDS_REINT_CREATE_WRITE  0x10c
-#define OBD_FAIL_MDS_REINT_UNLINK	0x10d
-#define OBD_FAIL_MDS_REINT_UNLINK_WRITE  0x10e
-#define OBD_FAIL_MDS_REINT_LINK	  0x10f
-#define OBD_FAIL_MDS_REINT_LINK_WRITE    0x110
-#define OBD_FAIL_MDS_REINT_RENAME	0x111
-#define OBD_FAIL_MDS_REINT_RENAME_WRITE  0x112
-#define OBD_FAIL_MDS_OPEN_NET	    0x113
-#define OBD_FAIL_MDS_OPEN_PACK	   0x114
-#define OBD_FAIL_MDS_CLOSE_NET	   0x115
-#define OBD_FAIL_MDS_CLOSE_PACK	  0x116
-#define OBD_FAIL_MDS_CONNECT_NET	 0x117
-#define OBD_FAIL_MDS_CONNECT_PACK	0x118
-#define OBD_FAIL_MDS_REINT_NET_REP       0x119
-#define OBD_FAIL_MDS_DISCONNECT_NET      0x11a
-#define OBD_FAIL_MDS_GETSTATUS_NET       0x11b
-#define OBD_FAIL_MDS_GETSTATUS_PACK      0x11c
-#define OBD_FAIL_MDS_STATFS_PACK	 0x11d
-#define OBD_FAIL_MDS_STATFS_NET	  0x11e
-#define OBD_FAIL_MDS_GETATTR_NAME_NET    0x11f
-#define OBD_FAIL_MDS_PIN_NET	     0x120
-#define OBD_FAIL_MDS_UNPIN_NET	   0x121
-#define OBD_FAIL_MDS_ALL_REPLY_NET       0x122
-#define OBD_FAIL_MDS_ALL_REQUEST_NET     0x123
-#define OBD_FAIL_MDS_SYNC_NET	    0x124
-#define OBD_FAIL_MDS_SYNC_PACK	   0x125
-#define OBD_FAIL_MDS_DONE_WRITING_NET    0x126
-#define OBD_FAIL_MDS_DONE_WRITING_PACK   0x127
-#define OBD_FAIL_MDS_ALLOC_OBDO	  0x128
-#define OBD_FAIL_MDS_PAUSE_OPEN	  0x129
-#define OBD_FAIL_MDS_STATFS_LCW_SLEEP    0x12a
-#define OBD_FAIL_MDS_OPEN_CREATE	 0x12b
-#define OBD_FAIL_MDS_OST_SETATTR	 0x12c
-#define OBD_FAIL_MDS_QUOTACHECK_NET      0x12d
-#define OBD_FAIL_MDS_QUOTACTL_NET	0x12e
-#define OBD_FAIL_MDS_CLIENT_ADD	  0x12f
-#define OBD_FAIL_MDS_GETXATTR_NET	0x130
-#define OBD_FAIL_MDS_GETXATTR_PACK       0x131
-#define OBD_FAIL_MDS_SETXATTR_NET	0x132
-#define OBD_FAIL_MDS_SETXATTR	    0x133
-#define OBD_FAIL_MDS_SETXATTR_WRITE      0x134
-#define OBD_FAIL_MDS_FS_SETUP	    0x135
-#define OBD_FAIL_MDS_RESEND	      0x136
-#define OBD_FAIL_MDS_LLOG_CREATE_FAILED  0x137
-#define OBD_FAIL_MDS_LOV_SYNC_RACE       0x138
-#define OBD_FAIL_MDS_OSC_PRECREATE       0x139
-#define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT   0x13a
-#define OBD_FAIL_MDS_CLOSE_NET_REP       0x13b
-#define OBD_FAIL_MDS_BLOCK_QUOTA_REQ     0x13c
-#define OBD_FAIL_MDS_DROP_QUOTA_REQ      0x13d
-#define OBD_FAIL_MDS_REMOVE_COMMON_EA    0x13e
-#define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING   0x13f
-#define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD    0x140
-#define OBD_FAIL_MDS_LOV_PREP_CREATE     0x141
-#define OBD_FAIL_MDS_REINT_DELAY	 0x142
-#define OBD_FAIL_MDS_READLINK_EPROTO     0x143
-#define OBD_FAIL_MDS_OPEN_WAIT_CREATE    0x144
-#define OBD_FAIL_MDS_PDO_LOCK	    0x145
-#define OBD_FAIL_MDS_PDO_LOCK2	   0x146
-#define OBD_FAIL_MDS_OSC_CREATE_FAIL     0x147
-#define OBD_FAIL_MDS_NEGATIVE_POSITIVE	 0x148
-#define OBD_FAIL_MDS_HSM_STATE_GET_NET		0x149
-#define OBD_FAIL_MDS_HSM_STATE_SET_NET		0x14a
-#define OBD_FAIL_MDS_HSM_PROGRESS_NET		0x14b
-#define OBD_FAIL_MDS_HSM_REQUEST_NET		0x14c
-#define OBD_FAIL_MDS_HSM_CT_REGISTER_NET	0x14d
-#define OBD_FAIL_MDS_HSM_CT_UNREGISTER_NET	0x14e
-#define OBD_FAIL_MDS_SWAP_LAYOUTS_NET		0x14f
-#define OBD_FAIL_MDS_HSM_ACTION_NET		0x150
-#define OBD_FAIL_MDS_CHANGELOG_INIT		0x151
-
-/* layout lock */
-#define OBD_FAIL_MDS_NO_LL_GETATTR	 0x170
-#define OBD_FAIL_MDS_NO_LL_OPEN		 0x171
-#define OBD_FAIL_MDS_LL_BLOCK		 0x172
-
-/* CMD */
-#define OBD_FAIL_MDS_IS_SUBDIR_NET       0x180
-#define OBD_FAIL_MDS_IS_SUBDIR_PACK      0x181
-#define OBD_FAIL_MDS_SET_INFO_NET	0x182
-#define OBD_FAIL_MDS_WRITEPAGE_NET       0x183
-#define OBD_FAIL_MDS_WRITEPAGE_PACK      0x184
-#define OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS 0x185
-#define OBD_FAIL_MDS_GET_INFO_NET	0x186
-#define OBD_FAIL_MDS_DQACQ_NET	   0x187
-
-/* OI scrub */
-#define OBD_FAIL_OSD_SCRUB_DELAY			0x190
-#define OBD_FAIL_OSD_SCRUB_CRASH			0x191
-#define OBD_FAIL_OSD_SCRUB_FATAL			0x192
-#define OBD_FAIL_OSD_FID_MAPPING			0x193
-#define OBD_FAIL_OSD_LMA_INCOMPAT			0x194
-#define OBD_FAIL_OSD_COMPAT_INVALID_ENTRY		0x195
-
-#define OBD_FAIL_OST		     0x200
-#define OBD_FAIL_OST_CONNECT_NET	 0x201
-#define OBD_FAIL_OST_DISCONNECT_NET      0x202
-#define OBD_FAIL_OST_GET_INFO_NET	0x203
-#define OBD_FAIL_OST_CREATE_NET	  0x204
-#define OBD_FAIL_OST_DESTROY_NET	 0x205
-#define OBD_FAIL_OST_GETATTR_NET	 0x206
-#define OBD_FAIL_OST_SETATTR_NET	 0x207
-#define OBD_FAIL_OST_OPEN_NET	    0x208
-#define OBD_FAIL_OST_CLOSE_NET	   0x209
-#define OBD_FAIL_OST_BRW_NET	     0x20a
-#define OBD_FAIL_OST_PUNCH_NET	   0x20b
-#define OBD_FAIL_OST_STATFS_NET	  0x20c
-#define OBD_FAIL_OST_HANDLE_UNPACK       0x20d
-#define OBD_FAIL_OST_BRW_WRITE_BULK      0x20e
-#define OBD_FAIL_OST_BRW_READ_BULK       0x20f
-#define OBD_FAIL_OST_SYNC_NET	    0x210
-#define OBD_FAIL_OST_ALL_REPLY_NET       0x211
-#define OBD_FAIL_OST_ALL_REQUEST_NET     0x212
-#define OBD_FAIL_OST_LDLM_REPLY_NET      0x213
-#define OBD_FAIL_OST_BRW_PAUSE_BULK      0x214
-#define OBD_FAIL_OST_ENOSPC	      0x215
-#define OBD_FAIL_OST_EROFS	       0x216
-#define OBD_FAIL_OST_ENOENT	      0x217
-#define OBD_FAIL_OST_QUOTACHECK_NET      0x218
-#define OBD_FAIL_OST_QUOTACTL_NET	0x219
-#define OBD_FAIL_OST_CHECKSUM_RECEIVE    0x21a
-#define OBD_FAIL_OST_CHECKSUM_SEND       0x21b
-#define OBD_FAIL_OST_BRW_SIZE	    0x21c
-#define OBD_FAIL_OST_DROP_REQ	    0x21d
-#define OBD_FAIL_OST_SETATTR_CREDITS     0x21e
-#define OBD_FAIL_OST_HOLD_WRITE_RPC      0x21f
-#define OBD_FAIL_OST_BRW_WRITE_BULK2     0x220
-#define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
-#define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
-#define OBD_FAIL_OST_PAUSE_CREATE	0x223
-#define OBD_FAIL_OST_BRW_PAUSE_PACK      0x224
-#define OBD_FAIL_OST_CONNECT_NET2	0x225
-#define OBD_FAIL_OST_NOMEM	       0x226
-#define OBD_FAIL_OST_BRW_PAUSE_BULK2     0x227
-#define OBD_FAIL_OST_MAPBLK_ENOSPC       0x228
-#define OBD_FAIL_OST_ENOINO	      0x229
-#define OBD_FAIL_OST_DQACQ_NET	   0x230
-#define OBD_FAIL_OST_STATFS_EINPROGRESS  0x231
-
-#define OBD_FAIL_LDLM		    0x300
-#define OBD_FAIL_LDLM_NAMESPACE_NEW      0x301
-#define OBD_FAIL_LDLM_ENQUEUE_NET			0x302
-#define OBD_FAIL_LDLM_CONVERT_NET			0x303
-#define OBD_FAIL_LDLM_CANCEL_NET			0x304
-#define OBD_FAIL_LDLM_BL_CALLBACK_NET			0x305
-#define OBD_FAIL_LDLM_CP_CALLBACK_NET			0x306
-#define OBD_FAIL_LDLM_GL_CALLBACK_NET			0x307
-#define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
-#define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
-#define OBD_FAIL_LDLM_CREATE_RESOURCE    0x30a
-#define OBD_FAIL_LDLM_ENQUEUE_BLOCKED    0x30b
-#define OBD_FAIL_LDLM_REPLY	      0x30c
-#define OBD_FAIL_LDLM_RECOV_CLIENTS      0x30d
-#define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
-#define OBD_FAIL_LDLM_GLIMPSE	    0x30f
-#define OBD_FAIL_LDLM_CANCEL_RACE	0x310
-#define OBD_FAIL_LDLM_CANCEL_EVICT_RACE  0x311
-#define OBD_FAIL_LDLM_PAUSE_CANCEL       0x312
-#define OBD_FAIL_LDLM_CLOSE_THREAD       0x313
-#define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE  0x314
-#define OBD_FAIL_LDLM_CP_CB_WAIT	 0x315
-#define OBD_FAIL_LDLM_OST_FAIL_RACE      0x316
-#define OBD_FAIL_LDLM_INTR_CP_AST	0x317
-#define OBD_FAIL_LDLM_CP_BL_RACE	 0x318
-#define OBD_FAIL_LDLM_NEW_LOCK	   0x319
-#define OBD_FAIL_LDLM_AGL_DELAY	  0x31a
-#define OBD_FAIL_LDLM_AGL_NOLOCK	 0x31b
-#define OBD_FAIL_LDLM_OST_LVB		 0x31c
-
-/* LOCKLESS IO */
-#define OBD_FAIL_LDLM_SET_CONTENTION     0x385
-
-#define OBD_FAIL_OSC		     0x400
-#define OBD_FAIL_OSC_BRW_READ_BULK       0x401
-#define OBD_FAIL_OSC_BRW_WRITE_BULK      0x402
-#define OBD_FAIL_OSC_LOCK_BL_AST	 0x403
-#define OBD_FAIL_OSC_LOCK_CP_AST	 0x404
-#define OBD_FAIL_OSC_MATCH	       0x405
-#define OBD_FAIL_OSC_BRW_PREP_REQ	0x406
-#define OBD_FAIL_OSC_SHUTDOWN	    0x407
-#define OBD_FAIL_OSC_CHECKSUM_RECEIVE    0x408
-#define OBD_FAIL_OSC_CHECKSUM_SEND       0x409
-#define OBD_FAIL_OSC_BRW_PREP_REQ2       0x40a
-#define OBD_FAIL_OSC_CONNECT_CKSUM       0x40b
-#define OBD_FAIL_OSC_CKSUM_ADLER_ONLY    0x40c
-#define OBD_FAIL_OSC_DIO_PAUSE	   0x40d
-#define OBD_FAIL_OSC_OBJECT_CONTENTION   0x40e
-#define OBD_FAIL_OSC_CP_CANCEL_RACE      0x40f
-#define OBD_FAIL_OSC_CP_ENQ_RACE	 0x410
-#define OBD_FAIL_OSC_NO_GRANT	    0x411
-#define OBD_FAIL_OSC_DELAY_SETTIME	 0x412
-
-#define OBD_FAIL_PTLRPC		  0x500
-#define OBD_FAIL_PTLRPC_ACK	      0x501
-#define OBD_FAIL_PTLRPC_RQBD	     0x502
-#define OBD_FAIL_PTLRPC_BULK_GET_NET     0x503
-#define OBD_FAIL_PTLRPC_BULK_PUT_NET     0x504
-#define OBD_FAIL_PTLRPC_DROP_RPC	 0x505
-#define OBD_FAIL_PTLRPC_DELAY_SEND       0x506
-#define OBD_FAIL_PTLRPC_DELAY_RECOV      0x507
-#define OBD_FAIL_PTLRPC_CLIENT_BULK_CB   0x508
-#define OBD_FAIL_PTLRPC_PAUSE_REQ	0x50a
-#define OBD_FAIL_PTLRPC_PAUSE_REP	0x50c
-#define OBD_FAIL_PTLRPC_IMP_DEACTIVE     0x50d
-#define OBD_FAIL_PTLRPC_DUMP_LOG	 0x50e
-#define OBD_FAIL_PTLRPC_LONG_REPL_UNLINK 0x50f
-#define OBD_FAIL_PTLRPC_LONG_BULK_UNLINK 0x510
-#define OBD_FAIL_PTLRPC_HPREQ_TIMEOUT    0x511
-#define OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT  0x512
-#define OBD_FAIL_PTLRPC_DROP_REQ_OPC     0x513
-#define OBD_FAIL_PTLRPC_FINISH_REPLAY    0x514
-#define OBD_FAIL_PTLRPC_CLIENT_BULK_CB2  0x515
-#define OBD_FAIL_PTLRPC_DELAY_IMP_FULL   0x516
-#define OBD_FAIL_PTLRPC_CANCEL_RESEND    0x517
-
-#define OBD_FAIL_OBD_PING_NET	    0x600
-#define OBD_FAIL_OBD_LOG_CANCEL_NET      0x601
-#define OBD_FAIL_OBD_LOGD_NET	    0x602
-#define OBD_FAIL_OBD_QC_CALLBACK_NET     0x603
-#define OBD_FAIL_OBD_DQACQ	       0x604
-#define OBD_FAIL_OBD_LLOG_SETUP	  0x605
-#define OBD_FAIL_OBD_LOG_CANCEL_REP      0x606
-#define OBD_FAIL_OBD_IDX_READ_NET	0x607
-#define OBD_FAIL_OBD_IDX_READ_BREAK	 0x608
-#define OBD_FAIL_OBD_NO_LRU		 0x609
-
-#define OBD_FAIL_TGT_REPLY_NET	   0x700
-#define OBD_FAIL_TGT_CONN_RACE	   0x701
-#define OBD_FAIL_TGT_FORCE_RECONNECT     0x702
-#define OBD_FAIL_TGT_DELAY_CONNECT       0x703
-#define OBD_FAIL_TGT_DELAY_RECONNECT     0x704
-#define OBD_FAIL_TGT_DELAY_PRECREATE     0x705
-#define OBD_FAIL_TGT_TOOMANY_THREADS     0x706
-#define OBD_FAIL_TGT_REPLAY_DROP	 0x707
-#define OBD_FAIL_TGT_FAKE_EXP	    0x708
-#define OBD_FAIL_TGT_REPLAY_DELAY	0x709
-#define OBD_FAIL_TGT_LAST_REPLAY	 0x710
-#define OBD_FAIL_TGT_CLIENT_ADD	  0x711
-#define OBD_FAIL_TGT_RCVG_FLAG	   0x712
-#define OBD_FAIL_TGT_DELAY_CONDITIONAL	 0x713
-
-#define OBD_FAIL_MDC_REVALIDATE_PAUSE    0x800
-#define OBD_FAIL_MDC_ENQUEUE_PAUSE       0x801
-#define OBD_FAIL_MDC_OLD_EXT_FLAGS       0x802
-#define OBD_FAIL_MDC_GETATTR_ENQUEUE     0x803
-#define OBD_FAIL_MDC_RPCS_SEM		 0x804
-#define OBD_FAIL_MDC_LIGHTWEIGHT	 0x805
-
-#define OBD_FAIL_MGS		     0x900
-#define OBD_FAIL_MGS_ALL_REQUEST_NET     0x901
-#define OBD_FAIL_MGS_ALL_REPLY_NET       0x902
-#define OBD_FAIL_MGC_PAUSE_PROCESS_LOG   0x903
-#define OBD_FAIL_MGS_PAUSE_REQ	   0x904
-#define OBD_FAIL_MGS_PAUSE_TARGET_REG    0x905
-#define OBD_FAIL_MGS_CONNECT_NET	 0x906
-#define OBD_FAIL_MGS_DISCONNECT_NET	 0x907
-#define OBD_FAIL_MGS_SET_INFO_NET	 0x908
-#define OBD_FAIL_MGS_EXCEPTION_NET	 0x909
-#define OBD_FAIL_MGS_TARGET_REG_NET	 0x90a
-#define OBD_FAIL_MGS_TARGET_DEL_NET	 0x90b
-#define OBD_FAIL_MGS_CONFIG_READ_NET	 0x90c
-
-#define OBD_FAIL_QUOTA_DQACQ_NET			0xA01
-#define OBD_FAIL_QUOTA_EDQUOT	    0xA02
-#define OBD_FAIL_QUOTA_DELAY_REINT       0xA03
-#define OBD_FAIL_QUOTA_RECOVERABLE_ERR   0xA04
-
-#define OBD_FAIL_LPROC_REMOVE	    0xB00
-
-#define OBD_FAIL_GENERAL_ALLOC	   0xC00
-
-#define OBD_FAIL_SEQ		     0x1000
-#define OBD_FAIL_SEQ_QUERY_NET	   0x1001
-#define OBD_FAIL_SEQ_EXHAUST		 0x1002
-
-#define OBD_FAIL_FLD		     0x1100
-#define OBD_FAIL_FLD_QUERY_NET	   0x1101
-
-#define OBD_FAIL_SEC_CTX		 0x1200
-#define OBD_FAIL_SEC_CTX_INIT_NET	0x1201
-#define OBD_FAIL_SEC_CTX_INIT_CONT_NET   0x1202
-#define OBD_FAIL_SEC_CTX_FINI_NET	0x1203
-#define OBD_FAIL_SEC_CTX_HDL_PAUSE       0x1204
-
-#define OBD_FAIL_LLOG			       0x1300
-#define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET	    0x1301
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET      0x1302
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET     0x1303
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET  0x1305
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET  0x1306
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET   0x1307
-#define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET       0x1308
-#define OBD_FAIL_LLOG_CATINFO_NET		   0x1309
-#define OBD_FAIL_MDS_SYNC_CAPA_SL		   0x1310
-#define OBD_FAIL_SEQ_ALLOC			  0x1311
-
-#define OBD_FAIL_LLITE			      0x1400
-#define OBD_FAIL_LLITE_FAULT_TRUNC_RACE	     0x1401
-#define OBD_FAIL_LOCK_STATE_WAIT_INTR	       0x1402
-#define OBD_FAIL_LOV_INIT			    0x1403
-#define OBD_FAIL_GLIMPSE_DELAY			    0x1404
-#define OBD_FAIL_LLITE_XATTR_ENOMEM		    0x1405
-
-#define OBD_FAIL_FID_INDIR	0x1501
-#define OBD_FAIL_FID_INLMA	0x1502
-#define OBD_FAIL_FID_IGIF	0x1504
-#define OBD_FAIL_FID_LOOKUP	0x1505
-#define OBD_FAIL_FID_NOLMA	0x1506
-
-/* LFSCK */
-#define OBD_FAIL_LFSCK_DELAY1		0x1600
-#define OBD_FAIL_LFSCK_DELAY2		0x1601
-#define OBD_FAIL_LFSCK_DELAY3		0x1602
-#define OBD_FAIL_LFSCK_LINKEA_CRASH	0x1603
-#define OBD_FAIL_LFSCK_LINKEA_MORE	0x1604
-#define OBD_FAIL_LFSCK_LINKEA_MORE2	0x1605
-#define OBD_FAIL_LFSCK_FATAL1		0x1608
-#define OBD_FAIL_LFSCK_FATAL2		0x1609
-#define OBD_FAIL_LFSCK_CRASH		0x160a
-#define OBD_FAIL_LFSCK_NO_AUTO		0x160b
-#define OBD_FAIL_LFSCK_NO_DOUBLESCAN	0x160c
-
-/* UPDATE */
-#define OBD_FAIL_UPDATE_OBJ_NET			0x1700
-#define OBD_FAIL_UPDATE_OBJ_NET_REP		0x1701
-
-
-/* Assign references to moved code to reduce code changes */
-#define OBD_FAIL_PRECHECK(id)		   CFS_FAIL_PRECHECK(id)
-#define OBD_FAIL_CHECK(id)		      CFS_FAIL_CHECK(id)
-#define OBD_FAIL_CHECK_VALUE(id, value)	 CFS_FAIL_CHECK_VALUE(id, value)
-#define OBD_FAIL_CHECK_ORSET(id, value)	 CFS_FAIL_CHECK_ORSET(id, value)
-#define OBD_FAIL_CHECK_RESET(id, value)	 CFS_FAIL_CHECK_RESET(id, value)
-#define OBD_FAIL_RETURN(id, ret)		CFS_FAIL_RETURN(id, ret)
-#define OBD_FAIL_TIMEOUT(id, secs)	      CFS_FAIL_TIMEOUT(id, secs)
-#define OBD_FAIL_TIMEOUT_MS(id, ms)	     CFS_FAIL_TIMEOUT_MS(id, ms)
-#define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) CFS_FAIL_TIMEOUT_ORSET(id, value, secs)
-#define OBD_RACE(id)			    CFS_RACE(id)
-#define OBD_FAIL_ONCE			   CFS_FAIL_ONCE
-#define OBD_FAILED			      CFS_FAILED
-
-void obd_update_maxusage(void);
-
-#define obd_memory_add(size)						  \
-	lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
-#define obd_memory_sub(size)						  \
-	lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
-#define obd_memory_sum()						      \
-	lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT,		  \
-				LPROCFS_FIELDS_FLAGS_SUM)
-#define obd_pages_add(order)						  \
-	lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT,		\
-			    (long)(1 << (order)))
-#define obd_pages_sub(order)						  \
-	lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT,		\
-			    (long)(1 << (order)))
-#define obd_pages_sum()						       \
-	lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT,	    \
-				LPROCFS_FIELDS_FLAGS_SUM)
-
-__u64 obd_memory_max(void);
-__u64 obd_pages_max(void);
-
-#define OBD_DEBUG_MEMUSAGE (1)
-
-#if OBD_DEBUG_MEMUSAGE
-#define OBD_ALLOC_POST(ptr, size, name)				 \
-		obd_memory_add(size);				   \
-		CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",       \
-		       (int)(size), ptr)
-
-#define OBD_FREE_PRE(ptr, size, name)				   \
-	LASSERT(ptr);						   \
-	obd_memory_sub(size);					   \
-	CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",	       \
-	       (int)(size), ptr);				       \
-	POISON(ptr, 0x5a, size)
-
-#else /* !OBD_DEBUG_MEMUSAGE */
-
-#define OBD_ALLOC_POST(ptr, size, name) ((void)0)
-#define OBD_FREE_PRE(ptr, size, name)   ((void)0)
-
-#endif /* !OBD_DEBUG_MEMUSAGE */
-
-#define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
-
-#define OBD_ALLOC_FAIL_BITS 24
-#define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
-#define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
-
-#if defined(LUSTRE_UTILS) /* this version is for utils only */
-#define __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, flags)		      \
-do {									      \
-	(ptr) = (cptab) == NULL ?					      \
-		kmalloc(size, flags) :				      \
-		kmalloc_node(size, flags, cfs_cpt_spread_node(cptab, cpt));   \
-	if (unlikely((ptr) == NULL)) {					\
-		CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n",  \
-		       (int)(size), __FILE__, __LINE__);		      \
-	} else {							      \
-		memset(ptr, 0, size);					      \
-		CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n",	      \
-		       (int)(size), ptr);				      \
-	}								      \
-} while (0)
-
-#else /* this version is for the kernel and liblustre */
-#define OBD_FREE_RTN0(ptr)						    \
-({									    \
-	kfree(ptr);							\
-	(ptr) = NULL;							 \
-	0;								    \
-})
-
-#define __OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, flags)		      \
-do {									      \
-	(ptr) = (cptab) == NULL ?					      \
-		kmalloc(size, flags | __GFP_ZERO) :			      \
-		kmalloc_node(size, flags | __GFP_ZERO,			      \
-			     cfs_cpt_spread_node(cptab, cpt));		      \
-	if (likely((ptr) != NULL &&					   \
-		   (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
-		    !obd_alloc_fail(ptr, #ptr, "km", size,		    \
-				    __FILE__, __LINE__) ||		    \
-		    OBD_FREE_RTN0(ptr)))){				    \
-		OBD_ALLOC_POST(ptr, size, "kmalloced");		       \
-	}								     \
-} while (0)
-#endif
-
-#define OBD_ALLOC_GFP(ptr, size, gfp_mask)				      \
-	__OBD_MALLOC_VERBOSE(ptr, NULL, 0, size, gfp_mask)
-
-#define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_NOFS)
-#define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_KERNEL)
-#define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof(*(ptr)))
-#define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof(*(ptr)))
-
-#define OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, gfp_mask)		      \
-	__OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, gfp_mask)
-
-#define OBD_CPT_ALLOC(ptr, cptab, cpt, size)				      \
-	OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, GFP_NOFS)
-
-#define OBD_CPT_ALLOC_PTR(ptr, cptab, cpt)				      \
-	OBD_CPT_ALLOC(ptr, cptab, cpt, sizeof(*(ptr)))
-
-# define __OBD_VMALLOC_VEROBSE(ptr, cptab, cpt, size)			      \
-do {									      \
-	(ptr) = cptab == NULL ?						      \
-		vzalloc(size) :						      \
-		vzalloc_node(size, cfs_cpt_spread_node(cptab, cpt));	      \
-	if (unlikely((ptr) == NULL)) {					\
-		CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n",	   \
-		       (int)(size));					  \
-		CERROR("%llu total bytes allocated by Lustre\n",	      \
-		       obd_memory_sum());				      \
-	} else {							      \
-		OBD_ALLOC_POST(ptr, size, "vmalloced");		       \
-	}								     \
-} while (0)
-
-# define OBD_VMALLOC(ptr, size)						      \
-	 __OBD_VMALLOC_VEROBSE(ptr, NULL, 0, size)
-# define OBD_CPT_VMALLOC(ptr, cptab, cpt, size)				      \
-	 __OBD_VMALLOC_VEROBSE(ptr, cptab, cpt, size)
-
-
-#define OBD_ALLOC_LARGE(ptr, size)					    \
-do {									  \
-	ptr = libcfs_kvzalloc(size, GFP_NOFS);				  \
-} while (0)
-
-#define OBD_CPT_ALLOC_LARGE(ptr, cptab, cpt, size)			      \
-do {									      \
-	ptr = libcfs_kvzalloc_cpt(cptab, cpt, size, GFP_NOFS);		      \
-} while (0)
-
-#define OBD_FREE_LARGE(ptr, size)					     \
-do {									  \
-	(void)(size);							\
-	kvfree(ptr);							  \
-} while (0)
-
-
-#ifdef CONFIG_DEBUG_SLAB
-#define POISON(ptr, c, s) do {} while (0)
-#define POISON_PTR(ptr)  ((void)0)
-#else
-#define POISON(ptr, c, s) memset(ptr, c, s)
-#define POISON_PTR(ptr)  (ptr) = (void *)0xdeadbeef
-#endif
-
-#ifdef POISON_BULK
-#define POISON_PAGE(page, val) do { memset(kmap(page), val, PAGE_CACHE_SIZE);   \
-				    kunmap(page); } while (0)
-#else
-#define POISON_PAGE(page, val) do { } while (0)
-#endif
-
-#define OBD_FREE(ptr, size)						   \
-do {									  \
-	OBD_FREE_PRE(ptr, size, "kfreed");				    \
-	kfree(ptr);							\
-	POISON_PTR(ptr);						      \
-} while (0)
-
-
-#define OBD_FREE_RCU(ptr, size, handle)					      \
-do {									      \
-	struct portals_handle *__h = (handle);				      \
-									      \
-	LASSERT(handle != NULL);					      \
-	__h->h_cookie = (unsigned long)(ptr);				      \
-	__h->h_size = (size);						      \
-	call_rcu(&__h->h_rcu, class_handle_free_cb);			      \
-	POISON_PTR(ptr);						      \
-} while (0)
-
-
-#define OBD_VFREE(ptr, size)				\
-	do {						\
-		OBD_FREE_PRE(ptr, size, "vfreed");	\
-		vfree(ptr);			\
-		POISON_PTR(ptr);			\
-	} while (0)
-
-/* we memset() the slab object to 0 when allocation succeeds, so DO NOT
- * HAVE A CTOR THAT DOES ANYTHING.  its work will be cleared here.  we'd
- * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
-#define OBD_SLAB_FREE_RTN0(ptr, slab)					 \
-({									    \
-	kmem_cache_free((slab), (ptr));				    \
-	(ptr) = NULL;							 \
-	0;								    \
-})
-
-#define __OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, type)	      \
-do {									      \
-	LASSERT(ergo((type) != GFP_ATOMIC, !in_interrupt()));	      \
-	(ptr) = (cptab) == NULL ?					      \
-		kmem_cache_alloc(slab, type | __GFP_ZERO) :		\
-		kmem_cache_alloc_node(slab, type | __GFP_ZERO,		\
-				      cfs_cpt_spread_node(cptab, cpt));	\
-	if (likely((ptr) != NULL &&					   \
-		   (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
-		    !obd_alloc_fail(ptr, #ptr, "slab-", size,		 \
-				    __FILE__, __LINE__) ||		    \
-		    OBD_SLAB_FREE_RTN0(ptr, slab)))) {			\
-		OBD_ALLOC_POST(ptr, size, "slab-alloced");		    \
-	}								     \
-} while (0)
-
-#define OBD_SLAB_ALLOC_GFP(ptr, slab, size, flags)			      \
-	__OBD_SLAB_ALLOC_VERBOSE(ptr, slab, NULL, 0, size, flags)
-#define OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, flags)	      \
-	__OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, flags)
-
-#define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof(*(ptr)))
-
-#define OBD_SLAB_FREE(ptr, slab, size)					\
-do {									  \
-	OBD_FREE_PRE(ptr, size, "slab-freed");				\
-	kmem_cache_free(slab, ptr);					\
-	POISON_PTR(ptr);						      \
-} while (0)
-
-#define OBD_SLAB_ALLOC(ptr, slab, size)					      \
-	OBD_SLAB_ALLOC_GFP(ptr, slab, size, GFP_NOFS)
-
-#define OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, size)			      \
-	OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, GFP_NOFS)
-
-#define OBD_SLAB_ALLOC_PTR(ptr, slab)					      \
-	OBD_SLAB_ALLOC(ptr, slab, sizeof(*(ptr)))
-
-#define OBD_SLAB_CPT_ALLOC_PTR(ptr, slab, cptab, cpt)			      \
-	OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, sizeof(*(ptr)))
-
-#define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, flags)			      \
-	OBD_SLAB_ALLOC_GFP(ptr, slab, sizeof(*(ptr)), flags)
-
-#define OBD_SLAB_CPT_ALLOC_PTR_GFP(ptr, slab, cptab, cpt, flags)		      \
-	OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, sizeof(*(ptr)), flags)
-
-#define OBD_SLAB_FREE_PTR(ptr, slab)					      \
-	OBD_SLAB_FREE((ptr), (slab), sizeof(*(ptr)))
-
-#define KEY_IS(str) \
-	(keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
-
-/* Wrapper for contiguous page frame allocation */
-#define __OBD_PAGE_ALLOC_VERBOSE(ptr, cptab, cpt, gfp_mask)		      \
-do {									      \
-	(ptr) = (cptab) == NULL ?					      \
-		alloc_page(gfp_mask) :				      \
-		alloc_pages_node(cfs_cpt_spread_node(cptab, cpt), gfp_mask, 0);\
-	if (unlikely((ptr) == NULL)) {					\
-		CERROR("alloc_pages of '" #ptr "' %d page(s) / %llu bytes "\
-		       "failed\n", (int)1,				    \
-		       (__u64)(1 << PAGE_CACHE_SHIFT));			 \
-		CERROR("%llu total bytes and %llu total pages "	   \
-		       "(%llu bytes) allocated by Lustre\n",		      \
-		       obd_memory_sum(),				      \
-		       obd_pages_sum() << PAGE_CACHE_SHIFT,		     \
-		       obd_pages_sum());				       \
-	} else {							      \
-		obd_pages_add(0);					     \
-		CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / "      \
-		       "%llu bytes at %p.\n",				\
-		       (int)1,						\
-		       (__u64)(1 << PAGE_CACHE_SHIFT), ptr);		    \
-	}								     \
-} while (0)
-
-#define OBD_PAGE_ALLOC(ptr, gfp_mask)					      \
-	__OBD_PAGE_ALLOC_VERBOSE(ptr, NULL, 0, gfp_mask)
-#define OBD_PAGE_CPT_ALLOC(ptr, cptab, cpt, gfp_mask)			      \
-	__OBD_PAGE_ALLOC_VERBOSE(ptr, cptab, cpt, gfp_mask)
-
-#define OBD_PAGE_FREE(ptr)						    \
-do {									  \
-	LASSERT(ptr);							 \
-	obd_pages_sub(0);						     \
-	CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / %llu bytes " \
-	       "at %p.\n",						    \
-	       (int)1, (__u64)(1 << PAGE_CACHE_SHIFT),			  \
-	       ptr);							  \
-	__free_page(ptr);						   \
-	(ptr) = (void *)0xdeadbeef;					   \
-} while (0)
-
-#endif
diff --git a/drivers/staging/lustre/lustre/lclient/glimpse.c b/drivers/staging/lustre/lustre/lclient/glimpse.c
deleted file mode 100644
index b9f2bb66de21..000000000000
--- a/drivers/staging/lustre/lustre/lclient/glimpse.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * glimpse code shared between vvp and liblustre (and other Lustre clients in
- * the future).
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Oleg Drokin <oleg.drokin@sun.com>
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/obd.h"
-
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_mdc.h"
-#include <linux/pagemap.h>
-#include <linux/file.h>
-
-#include "../include/cl_object.h"
-#include "../include/lclient.h"
-#include "../llite/llite_internal.h"
-
-static const struct cl_lock_descr whole_file = {
-	.cld_start = 0,
-	.cld_end   = CL_PAGE_EOF,
-	.cld_mode  = CLM_READ
-};
-
-/*
- * Check whether file has possible unwriten pages.
- *
- * \retval 1    file is mmap-ed or has dirty pages
- *	 0    otherwise
- */
-blkcnt_t dirty_cnt(struct inode *inode)
-{
-	blkcnt_t cnt = 0;
-	struct ccc_object *vob = cl_inode2ccc(inode);
-	void	      *results[1];
-
-	if (inode->i_mapping != NULL)
-		cnt += radix_tree_gang_lookup_tag(&inode->i_mapping->page_tree,
-						  results, 0, 1,
-						  PAGECACHE_TAG_DIRTY);
-	if (cnt == 0 && atomic_read(&vob->cob_mmap_cnt) > 0)
-		cnt = 1;
-
-	return (cnt > 0) ? 1 : 0;
-}
-
-int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io,
-		    struct inode *inode, struct cl_object *clob, int agl)
-{
-	struct cl_lock_descr *descr = &ccc_env_info(env)->cti_descr;
-	struct cl_inode_info *lli   = cl_i2info(inode);
-	const struct lu_fid  *fid   = lu_object_fid(&clob->co_lu);
-	struct ccc_io	*cio   = ccc_env_io(env);
-	struct cl_lock       *lock;
-	int result;
-
-	result = 0;
-	if (!(lli->lli_flags & LLIF_MDS_SIZE_LOCK)) {
-		CDEBUG(D_DLMTRACE, "Glimpsing inode "DFID"\n", PFID(fid));
-		if (lli->lli_has_smd) {
-			/* NOTE: this looks like DLM lock request, but it may
-			 *       not be one. Due to CEF_ASYNC flag (translated
-			 *       to LDLM_FL_HAS_INTENT by osc), this is
-			 *       glimpse request, that won't revoke any
-			 *       conflicting DLM locks held. Instead,
-			 *       ll_glimpse_callback() will be called on each
-			 *       client holding a DLM lock against this file,
-			 *       and resulting size will be returned for each
-			 *       stripe. DLM lock on [0, EOF] is acquired only
-			 *       if there were no conflicting locks. If there
-			 *       were conflicting locks, enqueuing or waiting
-			 *       fails with -ENAVAIL, but valid inode
-			 *       attributes are returned anyway. */
-			*descr = whole_file;
-			descr->cld_obj   = clob;
-			descr->cld_mode  = CLM_PHANTOM;
-			descr->cld_enq_flags = CEF_ASYNC | CEF_MUST;
-			if (agl)
-				descr->cld_enq_flags |= CEF_AGL;
-			cio->cui_glimpse = 1;
-			/*
-			 * CEF_ASYNC is used because glimpse sub-locks cannot
-			 * deadlock (because they never conflict with other
-			 * locks) and, hence, can be enqueued out-of-order.
-			 *
-			 * CEF_MUST protects glimpse lock from conversion into
-			 * a lockless mode.
-			 */
-			lock = cl_lock_request(env, io, descr, "glimpse",
-					       current);
-			cio->cui_glimpse = 0;
-
-			if (lock == NULL)
-				return 0;
-
-			if (IS_ERR(lock))
-				return PTR_ERR(lock);
-
-			LASSERT(agl == 0);
-			result = cl_wait(env, lock);
-			if (result == 0) {
-				cl_merge_lvb(env, inode);
-				if (cl_isize_read(inode) > 0 &&
-				    inode->i_blocks == 0) {
-					/*
-					 * LU-417: Add dirty pages block count
-					 * lest i_blocks reports 0, some "cp" or
-					 * "tar" may think it's a completely
-					 * sparse file and skip it.
-					 */
-					inode->i_blocks = dirty_cnt(inode);
-				}
-				cl_unuse(env, lock);
-			}
-			cl_lock_release(env, lock, "glimpse", current);
-		} else {
-			CDEBUG(D_DLMTRACE, "No objects for inode\n");
-			cl_merge_lvb(env, inode);
-		}
-	}
-
-	return result;
-}
-
-static int cl_io_get(struct inode *inode, struct lu_env **envout,
-		     struct cl_io **ioout, int *refcheck)
-{
-	struct lu_env	  *env;
-	struct cl_io	   *io;
-	struct cl_inode_info   *lli = cl_i2info(inode);
-	struct cl_object       *clob = lli->lli_clob;
-	int result;
-
-	if (S_ISREG(cl_inode_mode(inode))) {
-		env = cl_env_get(refcheck);
-		if (!IS_ERR(env)) {
-			io = ccc_env_thread_io(env);
-			io->ci_obj = clob;
-			*envout = env;
-			*ioout  = io;
-			result = 1;
-		} else
-			result = PTR_ERR(env);
-	} else
-		result = 0;
-	return result;
-}
-
-int cl_glimpse_size0(struct inode *inode, int agl)
-{
-	/*
-	 * We don't need ast_flags argument to cl_glimpse_size(), because
-	 * osc_lock_enqueue() takes care of the possible deadlock that said
-	 * argument was introduced to avoid.
-	 */
-	/*
-	 * XXX but note that ll_file_seek() passes LDLM_FL_BLOCK_NOWAIT to
-	 * cl_glimpse_size(), which doesn't make sense: glimpse locks are not
-	 * blocking anyway.
-	 */
-	struct lu_env	  *env = NULL;
-	struct cl_io	   *io  = NULL;
-	int		     result;
-	int		     refcheck;
-
-	result = cl_io_get(inode, &env, &io, &refcheck);
-	if (result > 0) {
-again:
-		io->ci_verify_layout = 1;
-		result = cl_io_init(env, io, CIT_MISC, io->ci_obj);
-		if (result > 0)
-			/*
-			 * nothing to do for this io. This currently happens
-			 * when stripe sub-object's are not yet created.
-			 */
-			result = io->ci_result;
-		else if (result == 0)
-			result = cl_glimpse_lock(env, io, inode, io->ci_obj,
-						 agl);
-
-		OBD_FAIL_TIMEOUT(OBD_FAIL_GLIMPSE_DELAY, 2);
-		cl_io_fini(env, io);
-		if (unlikely(io->ci_need_restart))
-			goto again;
-		cl_env_put(env, &refcheck);
-	}
-	return result;
-}
-
-int cl_local_size(struct inode *inode)
-{
-	struct lu_env	   *env = NULL;
-	struct cl_io	    *io  = NULL;
-	struct ccc_thread_info  *cti;
-	struct cl_object	*clob;
-	struct cl_lock_descr    *descr;
-	struct cl_lock	  *lock;
-	int		      result;
-	int		      refcheck;
-
-	if (!cl_i2info(inode)->lli_has_smd)
-		return 0;
-
-	result = cl_io_get(inode, &env, &io, &refcheck);
-	if (result <= 0)
-		return result;
-
-	clob = io->ci_obj;
-	result = cl_io_init(env, io, CIT_MISC, clob);
-	if (result > 0)
-		result = io->ci_result;
-	else if (result == 0) {
-		cti = ccc_env_info(env);
-		descr = &cti->cti_descr;
-
-		*descr = whole_file;
-		descr->cld_obj = clob;
-		lock = cl_lock_peek(env, io, descr, "localsize", current);
-		if (lock != NULL) {
-			cl_merge_lvb(env, inode);
-			cl_unuse(env, lock);
-			cl_lock_release(env, lock, "localsize", current);
-			result = 0;
-		} else
-			result = -ENODATA;
-	}
-	cl_io_fini(env, io);
-	cl_env_put(env, &refcheck);
-	return result;
-}
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
deleted file mode 100644
index 9053f8116298..000000000000
--- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
+++ /dev/null
@@ -1,1286 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * cl code shared between vvp and liblustre (and other Lustre clients in the
- * future).
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../../include/linux/libcfs/libcfs.h"
-# include <linux/fs.h>
-# include <linux/sched.h>
-# include <linux/mm.h>
-# include <linux/quotaops.h>
-# include <linux/highmem.h>
-# include <linux/pagemap.h>
-# include <linux/rbtree.h>
-
-#include "../include/obd.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_fid.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_ver.h"
-#include "../include/lustre_mdc.h"
-#include "../include/cl_object.h"
-
-#include "../include/lclient.h"
-
-#include "../llite/llite_internal.h"
-
-static const struct cl_req_operations ccc_req_ops;
-
-/*
- * ccc_ prefix stands for "Common Client Code".
- */
-
-static struct kmem_cache *ccc_lock_kmem;
-static struct kmem_cache *ccc_object_kmem;
-static struct kmem_cache *ccc_thread_kmem;
-static struct kmem_cache *ccc_session_kmem;
-static struct kmem_cache *ccc_req_kmem;
-
-static struct lu_kmem_descr ccc_caches[] = {
-	{
-		.ckd_cache = &ccc_lock_kmem,
-		.ckd_name  = "ccc_lock_kmem",
-		.ckd_size  = sizeof(struct ccc_lock)
-	},
-	{
-		.ckd_cache = &ccc_object_kmem,
-		.ckd_name  = "ccc_object_kmem",
-		.ckd_size  = sizeof(struct ccc_object)
-	},
-	{
-		.ckd_cache = &ccc_thread_kmem,
-		.ckd_name  = "ccc_thread_kmem",
-		.ckd_size  = sizeof(struct ccc_thread_info),
-	},
-	{
-		.ckd_cache = &ccc_session_kmem,
-		.ckd_name  = "ccc_session_kmem",
-		.ckd_size  = sizeof(struct ccc_session)
-	},
-	{
-		.ckd_cache = &ccc_req_kmem,
-		.ckd_name  = "ccc_req_kmem",
-		.ckd_size  = sizeof(struct ccc_req)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-/*****************************************************************************
- *
- * Vvp device and device type functions.
- *
- */
-
-void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key)
-{
-	struct ccc_thread_info *info;
-
-	OBD_SLAB_ALLOC_PTR_GFP(info, ccc_thread_kmem, GFP_NOFS);
-	if (info == NULL)
-		info = ERR_PTR(-ENOMEM);
-	return info;
-}
-
-void ccc_key_fini(const struct lu_context *ctx,
-			 struct lu_context_key *key, void *data)
-{
-	struct ccc_thread_info *info = data;
-
-	OBD_SLAB_FREE_PTR(info, ccc_thread_kmem);
-}
-
-void *ccc_session_key_init(const struct lu_context *ctx,
-				  struct lu_context_key *key)
-{
-	struct ccc_session *session;
-
-	OBD_SLAB_ALLOC_PTR_GFP(session, ccc_session_kmem, GFP_NOFS);
-	if (session == NULL)
-		session = ERR_PTR(-ENOMEM);
-	return session;
-}
-
-void ccc_session_key_fini(const struct lu_context *ctx,
-				 struct lu_context_key *key, void *data)
-{
-	struct ccc_session *session = data;
-
-	OBD_SLAB_FREE_PTR(session, ccc_session_kmem);
-}
-
-struct lu_context_key ccc_key = {
-	.lct_tags = LCT_CL_THREAD,
-	.lct_init = ccc_key_init,
-	.lct_fini = ccc_key_fini
-};
-
-struct lu_context_key ccc_session_key = {
-	.lct_tags = LCT_SESSION,
-	.lct_init = ccc_session_key_init,
-	.lct_fini = ccc_session_key_fini
-};
-
-
-/* type constructor/destructor: ccc_type_{init,fini,start,stop}(). */
-/* LU_TYPE_INIT_FINI(ccc, &ccc_key, &ccc_session_key); */
-
-int ccc_device_init(const struct lu_env *env, struct lu_device *d,
-			   const char *name, struct lu_device *next)
-{
-	struct ccc_device  *vdv;
-	int rc;
-
-	vdv = lu2ccc_dev(d);
-	vdv->cdv_next = lu2cl_dev(next);
-
-	LASSERT(d->ld_site != NULL && next->ld_type != NULL);
-	next->ld_site = d->ld_site;
-	rc = next->ld_type->ldt_ops->ldto_device_init(
-			env, next, next->ld_type->ldt_name, NULL);
-	if (rc == 0) {
-		lu_device_get(next);
-		lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init);
-	}
-	return rc;
-}
-
-struct lu_device *ccc_device_fini(const struct lu_env *env,
-					 struct lu_device *d)
-{
-	return cl2lu_dev(lu2ccc_dev(d)->cdv_next);
-}
-
-struct lu_device *ccc_device_alloc(const struct lu_env *env,
-				   struct lu_device_type *t,
-				   struct lustre_cfg *cfg,
-				   const struct lu_device_operations *luops,
-				   const struct cl_device_operations *clops)
-{
-	struct ccc_device *vdv;
-	struct lu_device  *lud;
-	struct cl_site    *site;
-	int rc;
-
-	vdv = kzalloc(sizeof(*vdv), GFP_NOFS);
-	if (!vdv)
-		return ERR_PTR(-ENOMEM);
-
-	lud = &vdv->cdv_cl.cd_lu_dev;
-	cl_device_init(&vdv->cdv_cl, t);
-	ccc2lu_dev(vdv)->ld_ops = luops;
-	vdv->cdv_cl.cd_ops = clops;
-
-	site = kzalloc(sizeof(*site), GFP_NOFS);
-	if (site != NULL) {
-		rc = cl_site_init(site, &vdv->cdv_cl);
-		if (rc == 0)
-			rc = lu_site_init_finish(&site->cs_lu);
-		else {
-			LASSERT(lud->ld_site == NULL);
-			CERROR("Cannot init lu_site, rc %d.\n", rc);
-			kfree(site);
-		}
-	} else
-		rc = -ENOMEM;
-	if (rc != 0) {
-		ccc_device_free(env, lud);
-		lud = ERR_PTR(rc);
-	}
-	return lud;
-}
-
-struct lu_device *ccc_device_free(const struct lu_env *env,
-					 struct lu_device *d)
-{
-	struct ccc_device *vdv  = lu2ccc_dev(d);
-	struct cl_site    *site = lu2cl_site(d->ld_site);
-	struct lu_device  *next = cl2lu_dev(vdv->cdv_next);
-
-	if (d->ld_site != NULL) {
-		cl_site_fini(site);
-		kfree(site);
-	}
-	cl_device_fini(lu2cl_dev(d));
-	kfree(vdv);
-	return next;
-}
-
-int ccc_req_init(const struct lu_env *env, struct cl_device *dev,
-			struct cl_req *req)
-{
-	struct ccc_req *vrq;
-	int result;
-
-	OBD_SLAB_ALLOC_PTR_GFP(vrq, ccc_req_kmem, GFP_NOFS);
-	if (vrq != NULL) {
-		cl_req_slice_add(req, &vrq->crq_cl, dev, &ccc_req_ops);
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-/**
- * An `emergency' environment used by ccc_inode_fini() when cl_env_get()
- * fails. Access to this environment is serialized by ccc_inode_fini_guard
- * mutex.
- */
-static struct lu_env *ccc_inode_fini_env;
-
-/**
- * A mutex serializing calls to slp_inode_fini() under extreme memory
- * pressure, when environments cannot be allocated.
- */
-static DEFINE_MUTEX(ccc_inode_fini_guard);
-static int dummy_refcheck;
-
-int ccc_global_init(struct lu_device_type *device_type)
-{
-	int result;
-
-	result = lu_kmem_init(ccc_caches);
-	if (result)
-		return result;
-
-	result = lu_device_type_init(device_type);
-	if (result)
-		goto out_kmem;
-
-	ccc_inode_fini_env = cl_env_alloc(&dummy_refcheck,
-					  LCT_REMEMBER|LCT_NOREF);
-	if (IS_ERR(ccc_inode_fini_env)) {
-		result = PTR_ERR(ccc_inode_fini_env);
-		goto out_device;
-	}
-
-	ccc_inode_fini_env->le_ctx.lc_cookie = 0x4;
-	return 0;
-out_device:
-	lu_device_type_fini(device_type);
-out_kmem:
-	lu_kmem_fini(ccc_caches);
-	return result;
-}
-
-void ccc_global_fini(struct lu_device_type *device_type)
-{
-	if (ccc_inode_fini_env != NULL) {
-		cl_env_put(ccc_inode_fini_env, &dummy_refcheck);
-		ccc_inode_fini_env = NULL;
-	}
-	lu_device_type_fini(device_type);
-	lu_kmem_fini(ccc_caches);
-}
-
-/*****************************************************************************
- *
- * Object operations.
- *
- */
-
-struct lu_object *ccc_object_alloc(const struct lu_env *env,
-				   const struct lu_object_header *unused,
-				   struct lu_device *dev,
-				   const struct cl_object_operations *clops,
-				   const struct lu_object_operations *luops)
-{
-	struct ccc_object *vob;
-	struct lu_object  *obj;
-
-	OBD_SLAB_ALLOC_PTR_GFP(vob, ccc_object_kmem, GFP_NOFS);
-	if (vob != NULL) {
-		struct cl_object_header *hdr;
-
-		obj = ccc2lu(vob);
-		hdr = &vob->cob_header;
-		cl_object_header_init(hdr);
-		lu_object_init(obj, &hdr->coh_lu, dev);
-		lu_object_add_top(&hdr->coh_lu, obj);
-
-		vob->cob_cl.co_ops = clops;
-		obj->lo_ops = luops;
-	} else
-		obj = NULL;
-	return obj;
-}
-
-int ccc_object_init0(const struct lu_env *env,
-			    struct ccc_object *vob,
-			    const struct cl_object_conf *conf)
-{
-	vob->cob_inode = conf->coc_inode;
-	vob->cob_transient_pages = 0;
-	cl_object_page_init(&vob->cob_cl, sizeof(struct ccc_page));
-	return 0;
-}
-
-int ccc_object_init(const struct lu_env *env, struct lu_object *obj,
-			   const struct lu_object_conf *conf)
-{
-	struct ccc_device *dev = lu2ccc_dev(obj->lo_dev);
-	struct ccc_object *vob = lu2ccc(obj);
-	struct lu_object  *below;
-	struct lu_device  *under;
-	int result;
-
-	under = &dev->cdv_next->cd_lu_dev;
-	below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under);
-	if (below != NULL) {
-		const struct cl_object_conf *cconf;
-
-		cconf = lu2cl_conf(conf);
-		INIT_LIST_HEAD(&vob->cob_pending_list);
-		lu_object_add(obj, below);
-		result = ccc_object_init0(env, vob, cconf);
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-void ccc_object_free(const struct lu_env *env, struct lu_object *obj)
-{
-	struct ccc_object *vob = lu2ccc(obj);
-
-	lu_object_fini(obj);
-	lu_object_header_fini(obj->lo_header);
-	OBD_SLAB_FREE_PTR(vob, ccc_object_kmem);
-}
-
-int ccc_lock_init(const struct lu_env *env,
-		  struct cl_object *obj, struct cl_lock *lock,
-		  const struct cl_io *unused,
-		  const struct cl_lock_operations *lkops)
-{
-	struct ccc_lock *clk;
-	int result;
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
-	OBD_SLAB_ALLOC_PTR_GFP(clk, ccc_lock_kmem, GFP_NOFS);
-	if (clk != NULL) {
-		cl_lock_slice_add(lock, &clk->clk_cl, obj, lkops);
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-int ccc_attr_set(const struct lu_env *env, struct cl_object *obj,
-		 const struct cl_attr *attr, unsigned valid)
-{
-	return 0;
-}
-
-int ccc_object_glimpse(const struct lu_env *env,
-		       const struct cl_object *obj, struct ost_lvb *lvb)
-{
-	struct inode *inode = ccc_object_inode(obj);
-
-	lvb->lvb_mtime = cl_inode_mtime(inode);
-	lvb->lvb_atime = cl_inode_atime(inode);
-	lvb->lvb_ctime = cl_inode_ctime(inode);
-	/*
-	 * LU-417: Add dirty pages block count lest i_blocks reports 0, some
-	 * "cp" or "tar" on remote node may think it's a completely sparse file
-	 * and skip it.
-	 */
-	if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0)
-		lvb->lvb_blocks = dirty_cnt(inode);
-	return 0;
-}
-
-
-
-int ccc_conf_set(const struct lu_env *env, struct cl_object *obj,
-			const struct cl_object_conf *conf)
-{
-	/* TODO: destroy all pages attached to this object. */
-	return 0;
-}
-
-static void ccc_object_size_lock(struct cl_object *obj)
-{
-	struct inode *inode = ccc_object_inode(obj);
-
-	cl_isize_lock(inode);
-	cl_object_attr_lock(obj);
-}
-
-static void ccc_object_size_unlock(struct cl_object *obj)
-{
-	struct inode *inode = ccc_object_inode(obj);
-
-	cl_object_attr_unlock(obj);
-	cl_isize_unlock(inode);
-}
-
-/*****************************************************************************
- *
- * Page operations.
- *
- */
-
-struct page *ccc_page_vmpage(const struct lu_env *env,
-			    const struct cl_page_slice *slice)
-{
-	return cl2vm_page(slice);
-}
-
-int ccc_page_is_under_lock(const struct lu_env *env,
-			   const struct cl_page_slice *slice,
-			   struct cl_io *io)
-{
-	struct ccc_io	*cio  = ccc_env_io(env);
-	struct cl_lock_descr *desc = &ccc_env_info(env)->cti_descr;
-	struct cl_page       *page = slice->cpl_page;
-
-	int result;
-
-	if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE ||
-	    io->ci_type == CIT_FAULT) {
-		if (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)
-			result = -EBUSY;
-		else {
-			desc->cld_start = page->cp_index;
-			desc->cld_end   = page->cp_index;
-			desc->cld_obj   = page->cp_obj;
-			desc->cld_mode  = CLM_READ;
-			result = cl_queue_match(&io->ci_lockset.cls_done,
-						desc) ? -EBUSY : 0;
-		}
-	} else
-		result = 0;
-	return result;
-}
-
-int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice)
-{
-	/*
-	 * Cached read?
-	 */
-	LBUG();
-	return 0;
-}
-
-void ccc_transient_page_verify(const struct cl_page *page)
-{
-}
-
-int ccc_transient_page_own(const struct lu_env *env,
-				   const struct cl_page_slice *slice,
-				   struct cl_io *unused,
-				   int nonblock)
-{
-	ccc_transient_page_verify(slice->cpl_page);
-	return 0;
-}
-
-void ccc_transient_page_assume(const struct lu_env *env,
-				      const struct cl_page_slice *slice,
-				      struct cl_io *unused)
-{
-	ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_unassume(const struct lu_env *env,
-					const struct cl_page_slice *slice,
-					struct cl_io *unused)
-{
-	ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_disown(const struct lu_env *env,
-				      const struct cl_page_slice *slice,
-				      struct cl_io *unused)
-{
-	ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_discard(const struct lu_env *env,
-				       const struct cl_page_slice *slice,
-				       struct cl_io *unused)
-{
-	struct cl_page *page = slice->cpl_page;
-
-	ccc_transient_page_verify(slice->cpl_page);
-
-	/*
-	 * For transient pages, remove it from the radix tree.
-	 */
-	cl_page_delete(env, page);
-}
-
-int ccc_transient_page_prep(const struct lu_env *env,
-				   const struct cl_page_slice *slice,
-				   struct cl_io *unused)
-{
-	/* transient page should always be sent. */
-	return 0;
-}
-
-/*****************************************************************************
- *
- * Lock operations.
- *
- */
-
-void ccc_lock_delete(const struct lu_env *env,
-		     const struct cl_lock_slice *slice)
-{
-	CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
-}
-
-void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice)
-{
-	struct ccc_lock *clk = cl2ccc_lock(slice);
-
-	OBD_SLAB_FREE_PTR(clk, ccc_lock_kmem);
-}
-
-int ccc_lock_enqueue(const struct lu_env *env,
-		     const struct cl_lock_slice *slice,
-		     struct cl_io *unused, __u32 enqflags)
-{
-	CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
-	return 0;
-}
-
-int ccc_lock_use(const struct lu_env *env, const struct cl_lock_slice *slice)
-{
-	CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
-	return 0;
-}
-
-int ccc_lock_unuse(const struct lu_env *env, const struct cl_lock_slice *slice)
-{
-	CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
-	return 0;
-}
-
-int ccc_lock_wait(const struct lu_env *env, const struct cl_lock_slice *slice)
-{
-	CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
-	return 0;
-}
-
-/**
- * Implementation of cl_lock_operations::clo_fits_into() methods for ccc
- * layer. This function is executed every time io finds an existing lock in
- * the lock cache while creating new lock. This function has to decide whether
- * cached lock "fits" into io.
- *
- * \param slice lock to be checked
- * \param io    IO that wants a lock.
- *
- * \see lov_lock_fits_into().
- */
-int ccc_lock_fits_into(const struct lu_env *env,
-		       const struct cl_lock_slice *slice,
-		       const struct cl_lock_descr *need,
-		       const struct cl_io *io)
-{
-	const struct cl_lock       *lock  = slice->cls_lock;
-	const struct cl_lock_descr *descr = &lock->cll_descr;
-	const struct ccc_io	*cio   = ccc_env_io(env);
-	int			 result;
-
-	/*
-	 * Work around DLM peculiarity: it assumes that glimpse
-	 * (LDLM_FL_HAS_INTENT) lock is always LCK_PR, and returns reads lock
-	 * when asked for LCK_PW lock with LDLM_FL_HAS_INTENT flag set. Make
-	 * sure that glimpse doesn't get CLM_WRITE top-lock, so that it
-	 * doesn't enqueue CLM_WRITE sub-locks.
-	 */
-	if (cio->cui_glimpse)
-		result = descr->cld_mode != CLM_WRITE;
-
-	/*
-	 * Also, don't match incomplete write locks for read, otherwise read
-	 * would enqueue missing sub-locks in the write mode.
-	 */
-	else if (need->cld_mode != descr->cld_mode)
-		result = lock->cll_state >= CLS_ENQUEUED;
-	else
-		result = 1;
-	return result;
-}
-
-/**
- * Implements cl_lock_operations::clo_state() method for ccc layer, invoked
- * whenever lock state changes. Transfers object attributes, that might be
- * updated as a result of lock acquiring into inode.
- */
-void ccc_lock_state(const struct lu_env *env,
-		    const struct cl_lock_slice *slice,
-		    enum cl_lock_state state)
-{
-	struct cl_lock *lock = slice->cls_lock;
-
-	/*
-	 * Refresh inode attributes when the lock is moving into CLS_HELD
-	 * state, and only when this is a result of real enqueue, rather than
-	 * of finding lock in the cache.
-	 */
-	if (state == CLS_HELD && lock->cll_state < CLS_HELD) {
-		struct cl_object *obj;
-		struct inode     *inode;
-
-		obj   = slice->cls_obj;
-		inode = ccc_object_inode(obj);
-
-		/* vmtruncate() sets the i_size
-		 * under both a DLM lock and the
-		 * ll_inode_size_lock().  If we don't get the
-		 * ll_inode_size_lock() here we can match the DLM lock and
-		 * reset i_size.  generic_file_write can then trust the
-		 * stale i_size when doing appending writes and effectively
-		 * cancel the result of the truncate.  Getting the
-		 * ll_inode_size_lock() after the enqueue maintains the DLM
-		 * -> ll_inode_size_lock() acquiring order. */
-		if (lock->cll_descr.cld_start == 0 &&
-		    lock->cll_descr.cld_end == CL_PAGE_EOF)
-			cl_merge_lvb(env, inode);
-	}
-}
-
-/*****************************************************************************
- *
- * io operations.
- *
- */
-
-void ccc_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	struct cl_io *io = ios->cis_io;
-
-	CLOBINVRNT(env, io->ci_obj, ccc_object_invariant(io->ci_obj));
-}
-
-int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io,
-			  __u32 enqflags, enum cl_lock_mode mode,
-			  pgoff_t start, pgoff_t end)
-{
-	struct ccc_io	  *cio   = ccc_env_io(env);
-	struct cl_lock_descr   *descr = &cio->cui_link.cill_descr;
-	struct cl_object       *obj   = io->ci_obj;
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
-	CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end);
-
-	memset(&cio->cui_link, 0, sizeof(cio->cui_link));
-
-	if (cio->cui_fd && (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
-		descr->cld_mode = CLM_GROUP;
-		descr->cld_gid  = cio->cui_fd->fd_grouplock.cg_gid;
-	} else {
-		descr->cld_mode  = mode;
-	}
-	descr->cld_obj   = obj;
-	descr->cld_start = start;
-	descr->cld_end   = end;
-	descr->cld_enq_flags = enqflags;
-
-	cl_io_lock_add(env, io, &cio->cui_link);
-	return 0;
-}
-
-void ccc_io_update_iov(const struct lu_env *env,
-		       struct ccc_io *cio, struct cl_io *io)
-{
-	size_t size = io->u.ci_rw.crw_count;
-
-	if (!cl_is_normalio(env, io) || cio->cui_iter == NULL)
-		return;
-
-	iov_iter_truncate(cio->cui_iter, size);
-}
-
-int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io,
-		    __u32 enqflags, enum cl_lock_mode mode,
-		    loff_t start, loff_t end)
-{
-	struct cl_object *obj = io->ci_obj;
-
-	return ccc_io_one_lock_index(env, io, enqflags, mode,
-				     cl_index(obj, start), cl_index(obj, end));
-}
-
-void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	CLOBINVRNT(env, ios->cis_io->ci_obj,
-		   ccc_object_invariant(ios->cis_io->ci_obj));
-}
-
-void ccc_io_advance(const struct lu_env *env,
-		    const struct cl_io_slice *ios,
-		    size_t nob)
-{
-	struct ccc_io    *cio = cl2ccc_io(env, ios);
-	struct cl_io     *io  = ios->cis_io;
-	struct cl_object *obj = ios->cis_io->ci_obj;
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
-	if (!cl_is_normalio(env, io))
-		return;
-
-	iov_iter_reexpand(cio->cui_iter, cio->cui_tot_count  -= nob);
-}
-
-/**
- * Helper function that if necessary adjusts file size (inode->i_size), when
- * position at the offset \a pos is accessed. File size can be arbitrary stale
- * on a Lustre client, but client at least knows KMS. If accessed area is
- * inside [0, KMS], set file size to KMS, otherwise glimpse file size.
- *
- * Locking: cl_isize_lock is used to serialize changes to inode size and to
- * protect consistency between inode size and cl_object
- * attributes. cl_object_size_lock() protects consistency between cl_attr's of
- * top-object and sub-objects.
- */
-int ccc_prep_size(const struct lu_env *env, struct cl_object *obj,
-		  struct cl_io *io, loff_t start, size_t count, int *exceed)
-{
-	struct cl_attr *attr  = ccc_env_thread_attr(env);
-	struct inode   *inode = ccc_object_inode(obj);
-	loff_t	  pos   = start + count - 1;
-	loff_t kms;
-	int result;
-
-	/*
-	 * Consistency guarantees: following possibilities exist for the
-	 * relation between region being accessed and real file size at this
-	 * moment:
-	 *
-	 *  (A): the region is completely inside of the file;
-	 *
-	 *  (B-x): x bytes of region are inside of the file, the rest is
-	 *  outside;
-	 *
-	 *  (C): the region is completely outside of the file.
-	 *
-	 * This classification is stable under DLM lock already acquired by
-	 * the caller, because to change the class, other client has to take
-	 * DLM lock conflicting with our lock. Also, any updates to ->i_size
-	 * by other threads on this client are serialized by
-	 * ll_inode_size_lock(). This guarantees that short reads are handled
-	 * correctly in the face of concurrent writes and truncates.
-	 */
-	ccc_object_size_lock(obj);
-	result = cl_object_attr_get(env, obj, attr);
-	if (result == 0) {
-		kms = attr->cat_kms;
-		if (pos > kms) {
-			/*
-			 * A glimpse is necessary to determine whether we
-			 * return a short read (B) or some zeroes at the end
-			 * of the buffer (C)
-			 */
-			ccc_object_size_unlock(obj);
-			result = cl_glimpse_lock(env, io, inode, obj, 0);
-			if (result == 0 && exceed != NULL) {
-				/* If objective page index exceed end-of-file
-				 * page index, return directly. Do not expect
-				 * kernel will check such case correctly.
-				 * linux-2.6.18-128.1.1 miss to do that.
-				 * --bug 17336 */
-				loff_t size = cl_isize_read(inode);
-				loff_t cur_index = start >> PAGE_CACHE_SHIFT;
-				loff_t size_index = (size - 1) >>
-						    PAGE_CACHE_SHIFT;
-
-				if ((size == 0 && cur_index != 0) ||
-				    size_index < cur_index)
-					*exceed = 1;
-			}
-			return result;
-		}
-		/*
-		 * region is within kms and, hence, within real file
-		 * size (A). We need to increase i_size to cover the
-		 * read region so that generic_file_read() will do its
-		 * job, but that doesn't mean the kms size is
-		 * _correct_, it is only the _minimum_ size. If
-		 * someone does a stat they will get the correct size
-		 * which will always be >= the kms value here.
-		 * b=11081
-		 */
-		if (cl_isize_read(inode) < kms) {
-			cl_isize_write_nolock(inode, kms);
-			CDEBUG(D_VFSTRACE,
-					DFID" updating i_size %llu\n",
-					PFID(lu_object_fid(&obj->co_lu)),
-					(__u64)cl_isize_read(inode));
-
-		}
-	}
-	ccc_object_size_unlock(obj);
-	return result;
-}
-
-/*****************************************************************************
- *
- * Transfer operations.
- *
- */
-
-void ccc_req_completion(const struct lu_env *env,
-			const struct cl_req_slice *slice, int ioret)
-{
-	struct ccc_req *vrq;
-
-	if (ioret > 0)
-		cl_stats_tally(slice->crs_dev, slice->crs_req->crq_type, ioret);
-
-	vrq = cl2ccc_req(slice);
-	OBD_SLAB_FREE_PTR(vrq, ccc_req_kmem);
-}
-
-/**
- * Implementation of struct cl_req_operations::cro_attr_set() for ccc
- * layer. ccc is responsible for
- *
- *    - o_[mac]time
- *
- *    - o_mode
- *
- *    - o_parent_seq
- *
- *    - o_[ug]id
- *
- *    - o_parent_oid
- *
- *    - o_parent_ver
- *
- *    - o_ioepoch,
- *
- *  and capability.
- */
-void ccc_req_attr_set(const struct lu_env *env,
-		      const struct cl_req_slice *slice,
-		      const struct cl_object *obj,
-		      struct cl_req_attr *attr, u64 flags)
-{
-	struct inode *inode;
-	struct obdo  *oa;
-	u32	      valid_flags;
-
-	oa = attr->cra_oa;
-	inode = ccc_object_inode(obj);
-	valid_flags = OBD_MD_FLTYPE;
-
-	if ((flags & OBD_MD_FLOSSCAPA) != 0) {
-		LASSERT(attr->cra_capa == NULL);
-		attr->cra_capa = cl_capa_lookup(inode,
-						slice->crs_req->crq_type);
-	}
-
-	if (slice->crs_req->crq_type == CRT_WRITE) {
-		if (flags & OBD_MD_FLEPOCH) {
-			oa->o_valid |= OBD_MD_FLEPOCH;
-			oa->o_ioepoch = cl_i2info(inode)->lli_ioepoch;
-			valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME |
-				       OBD_MD_FLUID | OBD_MD_FLGID;
-		}
-	}
-	obdo_from_inode(oa, inode, valid_flags & flags);
-	obdo_set_parent_fid(oa, &cl_i2info(inode)->lli_fid);
-	memcpy(attr->cra_jobid, cl_i2info(inode)->lli_jobid,
-	       JOBSTATS_JOBID_SIZE);
-}
-
-static const struct cl_req_operations ccc_req_ops = {
-	.cro_attr_set   = ccc_req_attr_set,
-	.cro_completion = ccc_req_completion
-};
-
-int cl_setattr_ost(struct inode *inode, const struct iattr *attr,
-		   struct obd_capa *capa)
-{
-	struct lu_env *env;
-	struct cl_io  *io;
-	int	    result;
-	int	    refcheck;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	io = ccc_env_thread_io(env);
-	io->ci_obj = cl_i2info(inode)->lli_clob;
-
-	io->u.ci_setattr.sa_attr.lvb_atime = LTIME_S(attr->ia_atime);
-	io->u.ci_setattr.sa_attr.lvb_mtime = LTIME_S(attr->ia_mtime);
-	io->u.ci_setattr.sa_attr.lvb_ctime = LTIME_S(attr->ia_ctime);
-	io->u.ci_setattr.sa_attr.lvb_size = attr->ia_size;
-	io->u.ci_setattr.sa_valid = attr->ia_valid;
-	io->u.ci_setattr.sa_capa = capa;
-
-again:
-	if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) {
-		struct ccc_io *cio = ccc_env_io(env);
-
-		if (attr->ia_valid & ATTR_FILE)
-			/* populate the file descriptor for ftruncate to honor
-			 * group lock - see LU-787 */
-			cio->cui_fd = cl_iattr2fd(inode, attr);
-
-		result = cl_io_loop(env, io);
-	} else {
-		result = io->ci_result;
-	}
-	cl_io_fini(env, io);
-	if (unlikely(io->ci_need_restart))
-		goto again;
-	/* HSM import case: file is released, cannot be restored
-	 * no need to fail except if restore registration failed
-	 * with -ENODATA */
-	if (result == -ENODATA && io->ci_restore_needed &&
-	    io->ci_result != -ENODATA)
-		result = 0;
-	cl_env_put(env, &refcheck);
-	return result;
-}
-
-/*****************************************************************************
- *
- * Type conversions.
- *
- */
-
-struct lu_device *ccc2lu_dev(struct ccc_device *vdv)
-{
-	return &vdv->cdv_cl.cd_lu_dev;
-}
-
-struct ccc_device *lu2ccc_dev(const struct lu_device *d)
-{
-	return container_of0(d, struct ccc_device, cdv_cl.cd_lu_dev);
-}
-
-struct ccc_device *cl2ccc_dev(const struct cl_device *d)
-{
-	return container_of0(d, struct ccc_device, cdv_cl);
-}
-
-struct lu_object *ccc2lu(struct ccc_object *vob)
-{
-	return &vob->cob_cl.co_lu;
-}
-
-struct ccc_object *lu2ccc(const struct lu_object *obj)
-{
-	return container_of0(obj, struct ccc_object, cob_cl.co_lu);
-}
-
-struct ccc_object *cl2ccc(const struct cl_object *obj)
-{
-	return container_of0(obj, struct ccc_object, cob_cl);
-}
-
-struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice)
-{
-	return container_of(slice, struct ccc_lock, clk_cl);
-}
-
-struct ccc_io *cl2ccc_io(const struct lu_env *env,
-			 const struct cl_io_slice *slice)
-{
-	struct ccc_io *cio;
-
-	cio = container_of(slice, struct ccc_io, cui_cl);
-	LASSERT(cio == ccc_env_io(env));
-	return cio;
-}
-
-struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice)
-{
-	return container_of0(slice, struct ccc_req, crq_cl);
-}
-
-struct page *cl2vm_page(const struct cl_page_slice *slice)
-{
-	return cl2ccc_page(slice)->cpg_page;
-}
-
-/*****************************************************************************
- *
- * Accessors.
- *
- */
-int ccc_object_invariant(const struct cl_object *obj)
-{
-	struct inode	 *inode = ccc_object_inode(obj);
-	struct cl_inode_info *lli   = cl_i2info(inode);
-
-	return (S_ISREG(cl_inode_mode(inode)) ||
-		/* i_mode of unlinked inode is zeroed. */
-		cl_inode_mode(inode) == 0) && lli->lli_clob == obj;
-}
-
-struct inode *ccc_object_inode(const struct cl_object *obj)
-{
-	return cl2ccc(obj)->cob_inode;
-}
-
-/**
- * Returns a pointer to cl_page associated with \a vmpage, without acquiring
- * additional reference to the resulting page. This is an unsafe version of
- * cl_vmpage_page() that can only be used under vmpage lock.
- */
-struct cl_page *ccc_vmpage_page_transient(struct page *vmpage)
-{
-	KLASSERT(PageLocked(vmpage));
-	return (struct cl_page *)vmpage->private;
-}
-
-/**
- * Initialize or update CLIO structures for regular files when new
- * meta-data arrives from the server.
- *
- * \param inode regular file inode
- * \param md    new file metadata from MDS
- * - allocates cl_object if necessary,
- * - updated layout, if object was already here.
- */
-int cl_file_inode_init(struct inode *inode, struct lustre_md *md)
-{
-	struct lu_env	*env;
-	struct cl_inode_info *lli;
-	struct cl_object     *clob;
-	struct lu_site       *site;
-	struct lu_fid	*fid;
-	struct cl_object_conf conf = {
-		.coc_inode = inode,
-		.u = {
-			.coc_md    = md
-		}
-	};
-	int result = 0;
-	int refcheck;
-
-	LASSERT(md->body->valid & OBD_MD_FLID);
-	LASSERT(S_ISREG(cl_inode_mode(inode)));
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	site = cl_i2sbi(inode)->ll_site;
-	lli  = cl_i2info(inode);
-	fid  = &lli->lli_fid;
-	LASSERT(fid_is_sane(fid));
-
-	if (lli->lli_clob == NULL) {
-		/* clob is slave of inode, empty lli_clob means for new inode,
-		 * there is no clob in cache with the given fid, so it is
-		 * unnecessary to perform lookup-alloc-lookup-insert, just
-		 * alloc and insert directly. */
-		LASSERT(inode->i_state & I_NEW);
-		conf.coc_lu.loc_flags = LOC_F_NEW;
-		clob = cl_object_find(env, lu2cl_dev(site->ls_top_dev),
-				      fid, &conf);
-		if (!IS_ERR(clob)) {
-			/*
-			 * No locking is necessary, as new inode is
-			 * locked by I_NEW bit.
-			 */
-			lli->lli_clob = clob;
-			lli->lli_has_smd = lsm_has_objects(md->lsm);
-			lu_object_ref_add(&clob->co_lu, "inode", inode);
-		} else
-			result = PTR_ERR(clob);
-	} else {
-		result = cl_conf_set(env, lli->lli_clob, &conf);
-	}
-
-	cl_env_put(env, &refcheck);
-
-	if (result != 0)
-		CERROR("Failure to initialize cl object "DFID": %d\n",
-		       PFID(fid), result);
-	return result;
-}
-
-/**
- * Wait for others drop their references of the object at first, then we drop
- * the last one, which will lead to the object be destroyed immediately.
- * Must be called after cl_object_kill() against this object.
- *
- * The reason we want to do this is: destroying top object will wait for sub
- * objects being destroyed first, so we can't let bottom layer (e.g. from ASTs)
- * to initiate top object destroying which may deadlock. See bz22520.
- */
-static void cl_object_put_last(struct lu_env *env, struct cl_object *obj)
-{
-	struct lu_object_header *header = obj->co_lu.lo_header;
-	wait_queue_t	   waiter;
-
-	if (unlikely(atomic_read(&header->loh_ref) != 1)) {
-		struct lu_site *site = obj->co_lu.lo_dev->ld_site;
-		struct lu_site_bkt_data *bkt;
-
-		bkt = lu_site_bkt_from_fid(site, &header->loh_fid);
-
-		init_waitqueue_entry(&waiter, current);
-		add_wait_queue(&bkt->lsb_marche_funebre, &waiter);
-
-		while (1) {
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			if (atomic_read(&header->loh_ref) == 1)
-				break;
-			schedule();
-		}
-
-		set_current_state(TASK_RUNNING);
-		remove_wait_queue(&bkt->lsb_marche_funebre, &waiter);
-	}
-
-	cl_object_put(env, obj);
-}
-
-void cl_inode_fini(struct inode *inode)
-{
-	struct lu_env	   *env;
-	struct cl_inode_info    *lli  = cl_i2info(inode);
-	struct cl_object	*clob = lli->lli_clob;
-	int refcheck;
-	int emergency;
-
-	if (clob != NULL) {
-		void		    *cookie;
-
-		cookie = cl_env_reenter();
-		env = cl_env_get(&refcheck);
-		emergency = IS_ERR(env);
-		if (emergency) {
-			mutex_lock(&ccc_inode_fini_guard);
-			LASSERT(ccc_inode_fini_env != NULL);
-			cl_env_implant(ccc_inode_fini_env, &refcheck);
-			env = ccc_inode_fini_env;
-		}
-		/*
-		 * cl_object cache is a slave to inode cache (which, in turn
-		 * is a slave to dentry cache), don't keep cl_object in memory
-		 * when its master is evicted.
-		 */
-		cl_object_kill(env, clob);
-		lu_object_ref_del(&clob->co_lu, "inode", inode);
-		cl_object_put_last(env, clob);
-		lli->lli_clob = NULL;
-		if (emergency) {
-			cl_env_unplant(ccc_inode_fini_env, &refcheck);
-			mutex_unlock(&ccc_inode_fini_guard);
-		} else
-			cl_env_put(env, &refcheck);
-		cl_env_reexit(cookie);
-	}
-}
-
-/**
- * return IF_* type for given lu_dirent entry.
- * IF_* flag shld be converted to particular OS file type in
- * platform llite module.
- */
-__u16 ll_dirent_type_get(struct lu_dirent *ent)
-{
-	__u16 type = 0;
-	struct luda_type *lt;
-	int len = 0;
-
-	if (le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) {
-		const unsigned align = sizeof(struct luda_type) - 1;
-
-		len = le16_to_cpu(ent->lde_namelen);
-		len = (len + align) & ~align;
-		lt = (void *)ent->lde_name + len;
-		type = IFTODT(le16_to_cpu(lt->lt_type));
-	}
-	return type;
-}
-
-/**
- * build inode number from passed @fid */
-__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32)
-{
-	if (BITS_PER_LONG == 32 || api32)
-		return fid_flatten32(fid);
-	else
-		return fid_flatten(fid);
-}
-
-/**
- * build inode generation from passed @fid.  If our FID overflows the 32-bit
- * inode number then return a non-zero generation to distinguish them. */
-__u32 cl_fid_build_gen(const struct lu_fid *fid)
-{
-	__u32 gen;
-
-	if (fid_is_igif(fid)) {
-		gen = lu_igif_gen(fid);
-		return gen;
-	}
-
-	gen = fid_flatten(fid) >> 32;
-	return gen;
-}
-
-/* lsm is unreliable after hsm implementation as layout can be changed at
- * any time. This is only to support old, non-clio-ized interfaces. It will
- * cause deadlock if clio operations are called with this extra layout refcount
- * because in case the layout changed during the IO, ll_layout_refresh() will
- * have to wait for the refcount to become zero to destroy the older layout.
- *
- * Notice that the lsm returned by this function may not be valid unless called
- * inside layout lock - MDS_INODELOCK_LAYOUT. */
-struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode)
-{
-	return lov_lsm_get(cl_i2info(inode)->lli_clob);
-}
-
-inline void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm)
-{
-	lov_lsm_put(cl_i2info(inode)->lli_clob, lsm);
-}
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_misc.c b/drivers/staging/lustre/lustre/lclient/lcommon_misc.c
deleted file mode 100644
index 01bf894d4a87..000000000000
--- a/drivers/staging/lustre/lustre/lclient/lcommon_misc.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * cl code shared between vvp and liblustre (and other Lustre clients in the
- * future).
- *
- */
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/obd.h"
-#include "../include/cl_object.h"
-#include "../include/lclient.h"
-
-#include "../include/lustre_lite.h"
-
-
-/* Initialize the default and maximum LOV EA and cookie sizes.  This allows
- * us to make MDS RPCs with large enough reply buffers to hold the
- * maximum-sized (= maximum striped) EA and cookie without having to
- * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
-int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp)
-{
-	struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC_V3 };
-	__u32 valsize = sizeof(struct lov_desc);
-	int rc, easize, def_easize, cookiesize;
-	struct lov_desc desc;
-	__u16 stripes, def_stripes;
-
-	rc = obd_get_info(NULL, dt_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC,
-			  &valsize, &desc, NULL);
-	if (rc)
-		return rc;
-
-	stripes = min_t(__u32, desc.ld_tgt_count, LOV_MAX_STRIPE_COUNT);
-	lsm.lsm_stripe_count = stripes;
-	easize = obd_size_diskmd(dt_exp, &lsm);
-
-	def_stripes = min_t(__u32, desc.ld_default_stripe_count,
-			    LOV_MAX_STRIPE_COUNT);
-	lsm.lsm_stripe_count = def_stripes;
-	def_easize = obd_size_diskmd(dt_exp, &lsm);
-
-	cookiesize = stripes * sizeof(struct llog_cookie);
-
-	/* default cookiesize is 0 because from 2.4 server doesn't send
-	 * llog cookies to client. */
-	CDEBUG(D_HA,
-	       "updating def/max_easize: %d/%d def/max_cookiesize: 0/%d\n",
-	       def_easize, easize, cookiesize);
-
-	rc = md_init_ea_size(md_exp, easize, def_easize, cookiesize, 0);
-	return rc;
-}
-
-/**
- * This function is used as an upcall-callback hooked by liblustre and llite
- * clients into obd_notify() listeners chain to handle notifications about
- * change of import connect_flags. See llu_fsswop_mount() and
- * lustre_common_fill_super().
- */
-int cl_ocd_update(struct obd_device *host,
-		  struct obd_device *watched,
-		  enum obd_notify_event ev, void *owner, void *data)
-{
-	struct lustre_client_ocd *lco;
-	struct client_obd	*cli;
-	__u64 flags;
-	int   result;
-
-	if (!strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) {
-		cli = &watched->u.cli;
-		lco = owner;
-		flags = cli->cl_import->imp_connect_data.ocd_connect_flags;
-		CDEBUG(D_SUPER, "Changing connect_flags: %#llx -> %#llx\n",
-		       lco->lco_flags, flags);
-		mutex_lock(&lco->lco_lock);
-		lco->lco_flags &= flags;
-		/* for each osc event update ea size */
-		if (lco->lco_dt_exp)
-			cl_init_ea_size(lco->lco_md_exp, lco->lco_dt_exp);
-
-		mutex_unlock(&lco->lco_lock);
-		result = 0;
-	} else {
-		CERROR("unexpected notification from %s %s!\n",
-		       watched->obd_type->typ_name,
-		       watched->obd_name);
-		result = -EINVAL;
-	}
-	return result;
-}
-
-#define GROUPLOCK_SCOPE "grouplock"
-
-int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock,
-		     struct ccc_grouplock *cg)
-{
-	struct lu_env	  *env;
-	struct cl_io	   *io;
-	struct cl_lock	 *lock;
-	struct cl_lock_descr   *descr;
-	__u32		   enqflags;
-	int		     refcheck;
-	int		     rc;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	io = ccc_env_thread_io(env);
-	io->ci_obj = obj;
-	io->ci_ignore_layout = 1;
-
-	rc = cl_io_init(env, io, CIT_MISC, io->ci_obj);
-	if (rc) {
-		/* Does not make sense to take GL for released layout */
-		if (rc > 0)
-			rc = -ENOTSUPP;
-		cl_env_put(env, &refcheck);
-		return rc;
-	}
-
-	descr = &ccc_env_info(env)->cti_descr;
-	descr->cld_obj = obj;
-	descr->cld_start = 0;
-	descr->cld_end = CL_PAGE_EOF;
-	descr->cld_gid = gid;
-	descr->cld_mode = CLM_GROUP;
-
-	enqflags = CEF_MUST | (nonblock ? CEF_NONBLOCK : 0);
-	descr->cld_enq_flags = enqflags;
-
-	lock = cl_lock_request(env, io, descr, GROUPLOCK_SCOPE, current);
-	if (IS_ERR(lock)) {
-		cl_io_fini(env, io);
-		cl_env_put(env, &refcheck);
-		return PTR_ERR(lock);
-	}
-
-	cg->cg_env  = cl_env_get(&refcheck);
-	cg->cg_io   = io;
-	cg->cg_lock = lock;
-	cg->cg_gid  = gid;
-	LASSERT(cg->cg_env == env);
-
-	cl_env_unplant(env, &refcheck);
-	return 0;
-}
-
-void cl_put_grouplock(struct ccc_grouplock *cg)
-{
-	struct lu_env  *env  = cg->cg_env;
-	struct cl_io   *io   = cg->cg_io;
-	struct cl_lock *lock = cg->cg_lock;
-	int	     refcheck;
-
-	LASSERT(cg->cg_env);
-	LASSERT(cg->cg_gid);
-
-	cl_env_implant(env, &refcheck);
-	cl_env_put(env, &refcheck);
-
-	cl_unuse(env, lock);
-	cl_lock_release(env, lock, GROUPLOCK_SCOPE, current);
-	cl_io_fini(env, io);
-	cl_env_put(env, NULL);
-}
diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
deleted file mode 100644
index eab2bd60241b..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ /dev/null
@@ -1,751 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/interval_tree.c
- *
- * Interval tree library used by ldlm extent lock code
- *
- * Author: Huang Wei <huangwei@clusterfs.com>
- * Author: Jay Xiong <jinshan.xiong@sun.com>
- */
-#include "../include/lustre_dlm.h"
-#include "../include/obd_support.h"
-#include "../include/interval_tree.h"
-
-enum {
-	INTERVAL_RED = 0,
-	INTERVAL_BLACK = 1
-};
-
-static inline int node_is_left_child(struct interval_node *node)
-{
-	LASSERT(node->in_parent != NULL);
-	return node == node->in_parent->in_left;
-}
-
-static inline int node_is_right_child(struct interval_node *node)
-{
-	LASSERT(node->in_parent != NULL);
-	return node == node->in_parent->in_right;
-}
-
-static inline int node_is_red(struct interval_node *node)
-{
-	return node->in_color == INTERVAL_RED;
-}
-
-static inline int node_is_black(struct interval_node *node)
-{
-	return node->in_color == INTERVAL_BLACK;
-}
-
-static inline int extent_compare(struct interval_node_extent *e1,
-				 struct interval_node_extent *e2)
-{
-	int rc;
-
-	if (e1->start == e2->start) {
-		if (e1->end < e2->end)
-			rc = -1;
-		else if (e1->end > e2->end)
-			rc = 1;
-		else
-			rc = 0;
-	} else {
-		if (e1->start < e2->start)
-			rc = -1;
-		else
-			rc = 1;
-	}
-	return rc;
-}
-
-static inline int extent_equal(struct interval_node_extent *e1,
-			       struct interval_node_extent *e2)
-{
-	return (e1->start == e2->start) && (e1->end == e2->end);
-}
-
-static inline int extent_overlapped(struct interval_node_extent *e1,
-				    struct interval_node_extent *e2)
-{
-	return (e1->start <= e2->end) && (e2->start <= e1->end);
-}
-
-static inline int node_compare(struct interval_node *n1,
-			       struct interval_node *n2)
-{
-	return extent_compare(&n1->in_extent, &n2->in_extent);
-}
-
-static inline int node_equal(struct interval_node *n1,
-			     struct interval_node *n2)
-{
-	return extent_equal(&n1->in_extent, &n2->in_extent);
-}
-
-static inline __u64 max_u64(__u64 x, __u64 y)
-{
-	return x > y ? x : y;
-}
-
-static inline __u64 min_u64(__u64 x, __u64 y)
-{
-	return x < y ? x : y;
-}
-
-#define interval_for_each(node, root)		   \
-for (node = interval_first(root); node != NULL;	 \
-	node = interval_next(node))
-
-#define interval_for_each_reverse(node, root)	   \
-for (node = interval_last(root); node != NULL;	  \
-	node = interval_prev(node))
-
-static struct interval_node *interval_first(struct interval_node *node)
-{
-	if (!node)
-		return NULL;
-	while (node->in_left)
-		node = node->in_left;
-	return node;
-}
-
-static struct interval_node *interval_last(struct interval_node *node)
-{
-	if (!node)
-		return NULL;
-	while (node->in_right)
-		node = node->in_right;
-	return node;
-}
-
-static struct interval_node *interval_next(struct interval_node *node)
-{
-	if (!node)
-		return NULL;
-	if (node->in_right)
-		return interval_first(node->in_right);
-	while (node->in_parent && node_is_right_child(node))
-		node = node->in_parent;
-	return node->in_parent;
-}
-
-static struct interval_node *interval_prev(struct interval_node *node)
-{
-	if (!node)
-		return NULL;
-
-	if (node->in_left)
-		return interval_last(node->in_left);
-
-	while (node->in_parent && node_is_left_child(node))
-		node = node->in_parent;
-
-	return node->in_parent;
-}
-
-enum interval_iter interval_iterate(struct interval_node *root,
-				    interval_callback_t func,
-				    void *data)
-{
-	struct interval_node *node;
-	enum interval_iter rc = INTERVAL_ITER_CONT;
-
-	interval_for_each(node, root) {
-		rc = func(node, data);
-		if (rc == INTERVAL_ITER_STOP)
-			break;
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(interval_iterate);
-
-enum interval_iter interval_iterate_reverse(struct interval_node *root,
-					    interval_callback_t func,
-					    void *data)
-{
-	struct interval_node *node;
-	enum interval_iter rc = INTERVAL_ITER_CONT;
-
-	interval_for_each_reverse(node, root) {
-		rc = func(node, data);
-		if (rc == INTERVAL_ITER_STOP)
-			break;
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(interval_iterate_reverse);
-
-/* try to find a node with same interval in the tree,
- * if found, return the pointer to the node, otherwise return NULL*/
-struct interval_node *interval_find(struct interval_node *root,
-				    struct interval_node_extent *ex)
-{
-	struct interval_node *walk = root;
-	int rc;
-
-	while (walk) {
-		rc = extent_compare(ex, &walk->in_extent);
-		if (rc == 0)
-			break;
-		else if (rc < 0)
-			walk = walk->in_left;
-		else
-			walk = walk->in_right;
-	}
-
-	return walk;
-}
-EXPORT_SYMBOL(interval_find);
-
-static void __rotate_change_maxhigh(struct interval_node *node,
-				    struct interval_node *rotate)
-{
-	__u64 left_max, right_max;
-
-	rotate->in_max_high = node->in_max_high;
-	left_max = node->in_left ? node->in_left->in_max_high : 0;
-	right_max = node->in_right ? node->in_right->in_max_high : 0;
-	node->in_max_high  = max_u64(interval_high(node),
-				     max_u64(left_max, right_max));
-}
-
-/* The left rotation "pivots" around the link from node to node->right, and
- * - node will be linked to node->right's left child, and
- * - node->right's left child will be linked to node's right child.  */
-static void __rotate_left(struct interval_node *node,
-			  struct interval_node **root)
-{
-	struct interval_node *right = node->in_right;
-	struct interval_node *parent = node->in_parent;
-
-	node->in_right = right->in_left;
-	if (node->in_right)
-		right->in_left->in_parent = node;
-
-	right->in_left = node;
-	right->in_parent = parent;
-	if (parent) {
-		if (node_is_left_child(node))
-			parent->in_left = right;
-		else
-			parent->in_right = right;
-	} else {
-		*root = right;
-	}
-	node->in_parent = right;
-
-	/* update max_high for node and right */
-	__rotate_change_maxhigh(node, right);
-}
-
-/* The right rotation "pivots" around the link from node to node->left, and
- * - node will be linked to node->left's right child, and
- * - node->left's right child will be linked to node's left child.  */
-static void __rotate_right(struct interval_node *node,
-			   struct interval_node **root)
-{
-	struct interval_node *left = node->in_left;
-	struct interval_node *parent = node->in_parent;
-
-	node->in_left = left->in_right;
-	if (node->in_left)
-		left->in_right->in_parent = node;
-	left->in_right = node;
-
-	left->in_parent = parent;
-	if (parent) {
-		if (node_is_right_child(node))
-			parent->in_right = left;
-		else
-			parent->in_left = left;
-	} else {
-		*root = left;
-	}
-	node->in_parent = left;
-
-	/* update max_high for node and left */
-	__rotate_change_maxhigh(node, left);
-}
-
-#define interval_swap(a, b) do {			\
-	struct interval_node *c = a; a = b; b = c;      \
-} while (0)
-
-/*
- * Operations INSERT and DELETE, when run on a tree with n keys,
- * take O(logN) time.Because they modify the tree, the result
- * may violate the red-black properties.To restore these properties,
- * we must change the colors of some of the nodes in the tree
- * and also change the pointer structure.
- */
-static void interval_insert_color(struct interval_node *node,
-				  struct interval_node **root)
-{
-	struct interval_node *parent, *gparent;
-
-	while ((parent = node->in_parent) && node_is_red(parent)) {
-		gparent = parent->in_parent;
-		/* Parent is RED, so gparent must not be NULL */
-		if (node_is_left_child(parent)) {
-			struct interval_node *uncle;
-
-			uncle = gparent->in_right;
-			if (uncle && node_is_red(uncle)) {
-				uncle->in_color = INTERVAL_BLACK;
-				parent->in_color = INTERVAL_BLACK;
-				gparent->in_color = INTERVAL_RED;
-				node = gparent;
-				continue;
-			}
-
-			if (parent->in_right == node) {
-				__rotate_left(parent, root);
-				interval_swap(node, parent);
-			}
-
-			parent->in_color = INTERVAL_BLACK;
-			gparent->in_color = INTERVAL_RED;
-			__rotate_right(gparent, root);
-		} else {
-			struct interval_node *uncle;
-
-			uncle = gparent->in_left;
-			if (uncle && node_is_red(uncle)) {
-				uncle->in_color = INTERVAL_BLACK;
-				parent->in_color = INTERVAL_BLACK;
-				gparent->in_color = INTERVAL_RED;
-				node = gparent;
-				continue;
-			}
-
-			if (node_is_left_child(node)) {
-				__rotate_right(parent, root);
-				interval_swap(node, parent);
-			}
-
-			parent->in_color = INTERVAL_BLACK;
-			gparent->in_color = INTERVAL_RED;
-			__rotate_left(gparent, root);
-		}
-	}
-
-	(*root)->in_color = INTERVAL_BLACK;
-}
-
-struct interval_node *interval_insert(struct interval_node *node,
-				      struct interval_node **root)
-
-{
-	struct interval_node **p, *parent = NULL;
-
-	LASSERT(!interval_is_intree(node));
-	p = root;
-	while (*p) {
-		parent = *p;
-		if (node_equal(parent, node))
-			return parent;
-
-		/* max_high field must be updated after each iteration */
-		if (parent->in_max_high < interval_high(node))
-			parent->in_max_high = interval_high(node);
-
-		if (node_compare(node, parent) < 0)
-			p = &parent->in_left;
-		else
-			p = &parent->in_right;
-	}
-
-	/* link node into the tree */
-	node->in_parent = parent;
-	node->in_color = INTERVAL_RED;
-	node->in_left = node->in_right = NULL;
-	*p = node;
-
-	interval_insert_color(node, root);
-	node->in_intree = 1;
-
-	return NULL;
-}
-EXPORT_SYMBOL(interval_insert);
-
-static inline int node_is_black_or_0(struct interval_node *node)
-{
-	return !node || node_is_black(node);
-}
-
-static void interval_erase_color(struct interval_node *node,
-				 struct interval_node *parent,
-				 struct interval_node **root)
-{
-	struct interval_node *tmp;
-
-	while (node_is_black_or_0(node) && node != *root) {
-		if (parent->in_left == node) {
-			tmp = parent->in_right;
-			if (node_is_red(tmp)) {
-				tmp->in_color = INTERVAL_BLACK;
-				parent->in_color = INTERVAL_RED;
-				__rotate_left(parent, root);
-				tmp = parent->in_right;
-			}
-			if (node_is_black_or_0(tmp->in_left) &&
-			    node_is_black_or_0(tmp->in_right)) {
-				tmp->in_color = INTERVAL_RED;
-				node = parent;
-				parent = node->in_parent;
-			} else {
-				if (node_is_black_or_0(tmp->in_right)) {
-					struct interval_node *o_left;
-
-					o_left = tmp->in_left;
-					if (o_left)
-						o_left->in_color = INTERVAL_BLACK;
-					tmp->in_color = INTERVAL_RED;
-					__rotate_right(tmp, root);
-					tmp = parent->in_right;
-				}
-				tmp->in_color = parent->in_color;
-				parent->in_color = INTERVAL_BLACK;
-				if (tmp->in_right)
-					tmp->in_right->in_color = INTERVAL_BLACK;
-				__rotate_left(parent, root);
-				node = *root;
-				break;
-			}
-		} else {
-			tmp = parent->in_left;
-			if (node_is_red(tmp)) {
-				tmp->in_color = INTERVAL_BLACK;
-				parent->in_color = INTERVAL_RED;
-				__rotate_right(parent, root);
-				tmp = parent->in_left;
-			}
-			if (node_is_black_or_0(tmp->in_left) &&
-			    node_is_black_or_0(tmp->in_right)) {
-				tmp->in_color = INTERVAL_RED;
-				node = parent;
-				parent = node->in_parent;
-			} else {
-				if (node_is_black_or_0(tmp->in_left)) {
-					struct interval_node *o_right;
-
-					o_right = tmp->in_right;
-					if (o_right)
-						o_right->in_color = INTERVAL_BLACK;
-					tmp->in_color = INTERVAL_RED;
-					__rotate_left(tmp, root);
-					tmp = parent->in_left;
-				}
-				tmp->in_color = parent->in_color;
-				parent->in_color = INTERVAL_BLACK;
-				if (tmp->in_left)
-					tmp->in_left->in_color = INTERVAL_BLACK;
-				__rotate_right(parent, root);
-				node = *root;
-				break;
-			}
-		}
-	}
-	if (node)
-		node->in_color = INTERVAL_BLACK;
-}
-
-/*
- * if the @max_high value of @node is changed, this function traverse  a path
- * from node  up to the root to update max_high for the whole tree.
- */
-static void update_maxhigh(struct interval_node *node,
-			   __u64  old_maxhigh)
-{
-	__u64 left_max, right_max;
-
-	while (node) {
-		left_max = node->in_left ? node->in_left->in_max_high : 0;
-		right_max = node->in_right ? node->in_right->in_max_high : 0;
-		node->in_max_high = max_u64(interval_high(node),
-					    max_u64(left_max, right_max));
-
-		if (node->in_max_high >= old_maxhigh)
-			break;
-		node = node->in_parent;
-	}
-}
-
-void interval_erase(struct interval_node *node,
-		    struct interval_node **root)
-{
-	struct interval_node *child, *parent;
-	int color;
-
-	LASSERT(interval_is_intree(node));
-	node->in_intree = 0;
-	if (!node->in_left) {
-		child = node->in_right;
-	} else if (!node->in_right) {
-		child = node->in_left;
-	} else { /* Both left and right child are not NULL */
-		struct interval_node *old = node;
-
-		node = interval_next(node);
-		child = node->in_right;
-		parent = node->in_parent;
-		color = node->in_color;
-
-		if (child)
-			child->in_parent = parent;
-		if (parent == old)
-			parent->in_right = child;
-		else
-			parent->in_left = child;
-
-		node->in_color = old->in_color;
-		node->in_right = old->in_right;
-		node->in_left = old->in_left;
-		node->in_parent = old->in_parent;
-
-		if (old->in_parent) {
-			if (node_is_left_child(old))
-				old->in_parent->in_left = node;
-			else
-				old->in_parent->in_right = node;
-		} else {
-			*root = node;
-		}
-
-		old->in_left->in_parent = node;
-		if (old->in_right)
-			old->in_right->in_parent = node;
-		update_maxhigh(child ? : parent, node->in_max_high);
-		update_maxhigh(node, old->in_max_high);
-		if (parent == old)
-			parent = node;
-		goto color;
-	}
-	parent = node->in_parent;
-	color = node->in_color;
-
-	if (child)
-		child->in_parent = parent;
-	if (parent) {
-		if (node_is_left_child(node))
-			parent->in_left = child;
-		else
-			parent->in_right = child;
-	} else {
-		*root = child;
-	}
-
-	update_maxhigh(child ? : parent, node->in_max_high);
-
-color:
-	if (color == INTERVAL_BLACK)
-		interval_erase_color(child, parent, root);
-}
-EXPORT_SYMBOL(interval_erase);
-
-static inline int interval_may_overlap(struct interval_node *node,
-					  struct interval_node_extent *ext)
-{
-	return (ext->start <= node->in_max_high &&
-		ext->end >= interval_low(node));
-}
-
-/*
- * This function finds all intervals that overlap interval ext,
- * and calls func to handle resulted intervals one by one.
- * in lustre, this function will find all conflicting locks in
- * the granted queue and add these locks to the ast work list.
- *
- * {
- *       if (node == NULL)
- *	       return 0;
- *       if (ext->end < interval_low(node)) {
- *	       interval_search(node->in_left, ext, func, data);
- *       } else if (interval_may_overlap(node, ext)) {
- *	       if (extent_overlapped(ext, &node->in_extent))
- *		       func(node, data);
- *	       interval_search(node->in_left, ext, func, data);
- *	       interval_search(node->in_right, ext, func, data);
- *       }
- *       return 0;
- * }
- *
- */
-enum interval_iter interval_search(struct interval_node *node,
-				   struct interval_node_extent *ext,
-				   interval_callback_t func,
-				   void *data)
-{
-	struct interval_node *parent;
-	enum interval_iter rc = INTERVAL_ITER_CONT;
-
-	LASSERT(ext != NULL);
-	LASSERT(func != NULL);
-
-	while (node) {
-		if (ext->end < interval_low(node)) {
-			if (node->in_left) {
-				node = node->in_left;
-				continue;
-			}
-		} else if (interval_may_overlap(node, ext)) {
-			if (extent_overlapped(ext, &node->in_extent)) {
-				rc = func(node, data);
-				if (rc == INTERVAL_ITER_STOP)
-					break;
-			}
-
-			if (node->in_left) {
-				node = node->in_left;
-				continue;
-			}
-			if (node->in_right) {
-				node = node->in_right;
-				continue;
-			}
-		}
-
-		parent = node->in_parent;
-		while (parent) {
-			if (node_is_left_child(node) &&
-			    parent->in_right) {
-				/* If we ever got the left, it means that the
-				 * parent met ext->end<interval_low(parent), or
-				 * may_overlap(parent). If the former is true,
-				 * we needn't go back. So stop early and check
-				 * may_overlap(parent) after this loop.  */
-				node = parent->in_right;
-				break;
-			}
-			node = parent;
-			parent = parent->in_parent;
-		}
-		if (parent == NULL || !interval_may_overlap(parent, ext))
-			break;
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(interval_search);
-
-static enum interval_iter interval_overlap_cb(struct interval_node *n,
-					      void *args)
-{
-	*(int *)args = 1;
-	return INTERVAL_ITER_STOP;
-}
-
-int interval_is_overlapped(struct interval_node *root,
-			   struct interval_node_extent *ext)
-{
-	int has = 0;
-	(void)interval_search(root, ext, interval_overlap_cb, &has);
-	return has;
-}
-EXPORT_SYMBOL(interval_is_overlapped);
-
-/* Don't expand to low. Expanding downwards is expensive, and meaningless to
- * some extents, because programs seldom do IO backward.
- *
- * The recursive algorithm of expanding low:
- * expand_low {
- *	struct interval_node *tmp;
- *	static __u64 res = 0;
- *
- *	if (root == NULL)
- *		return res;
- *	if (root->in_max_high < low) {
- *		res = max_u64(root->in_max_high + 1, res);
- *		return res;
- *	} else if (low < interval_low(root)) {
- *		interval_expand_low(root->in_left, low);
- *		return res;
- *	}
- *
- *	if (interval_high(root) < low)
- *		res = max_u64(interval_high(root) + 1, res);
- *	interval_expand_low(root->in_left, low);
- *	interval_expand_low(root->in_right, low);
- *
- *	return res;
- * }
- *
- * It's much easy to eliminate the recursion, see interval_search for
- * an example. -jay
- */
-static inline __u64 interval_expand_low(struct interval_node *root, __u64 low)
-{
-	/* we only concern the empty tree right now. */
-	if (root == NULL)
-		return 0;
-	return low;
-}
-
-static inline __u64 interval_expand_high(struct interval_node *node, __u64 high)
-{
-	__u64 result = ~0;
-
-	while (node != NULL) {
-		if (node->in_max_high < high)
-			break;
-
-		if (interval_low(node) > high) {
-			result = interval_low(node) - 1;
-			node = node->in_left;
-		} else {
-			node = node->in_right;
-		}
-	}
-
-	return result;
-}
-
-/* expanding the extent based on @ext. */
-void interval_expand(struct interval_node *root,
-		     struct interval_node_extent *ext,
-		     struct interval_node_extent *limiter)
-{
-	/* The assertion of interval_is_overlapped is expensive because we may
-	 * travel many nodes to find the overlapped node. */
-	LASSERT(interval_is_overlapped(root, ext) == 0);
-	if (!limiter || limiter->start < ext->start)
-		ext->start = interval_expand_low(root, ext->start);
-	if (!limiter || limiter->end > ext->end)
-		ext->end = interval_expand_high(root, ext->end);
-	LASSERT(interval_is_overlapped(root, ext) == 0);
-}
-EXPORT_SYMBOL(interval_expand);
diff --git a/drivers/staging/lustre/lustre/ldlm/l_lock.c b/drivers/staging/lustre/lustre/ldlm/l_lock.c
deleted file mode 100644
index cd8ab40e3267..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/l_lock.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_lib.h"
-
-/**
- * Lock a lock and its resource.
- *
- * LDLM locking uses resource to serialize access to locks
- * but there is a case when we change resource of lock upon
- * enqueue reply. We rely on lock->l_resource = new_res
- * being an atomic operation.
- */
-struct ldlm_resource *lock_res_and_lock(struct ldlm_lock *lock)
-{
-	/* on server-side resource of lock doesn't change */
-	if ((lock->l_flags & LDLM_FL_NS_SRV) == 0)
-		spin_lock(&lock->l_lock);
-
-	lock_res(lock->l_resource);
-
-	lock->l_flags |= LDLM_FL_RES_LOCKED;
-	return lock->l_resource;
-}
-EXPORT_SYMBOL(lock_res_and_lock);
-
-/**
- * Unlock a lock and its resource previously locked with lock_res_and_lock
- */
-void unlock_res_and_lock(struct ldlm_lock *lock)
-{
-	/* on server-side resource of lock doesn't change */
-	lock->l_flags &= ~LDLM_FL_RES_LOCKED;
-
-	unlock_res(lock->l_resource);
-	if ((lock->l_flags & LDLM_FL_NS_SRV) == 0)
-		spin_unlock(&lock->l_lock);
-}
-EXPORT_SYMBOL(unlock_res_and_lock);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
deleted file mode 100644
index fd9b059361f9..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/ldlm_extent.c
- *
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-/**
- * This file contains implementation of EXTENT lock type
- *
- * EXTENT lock type is for locking a contiguous range of values, represented
- * by 64-bit starting and ending offsets (inclusive). There are several extent
- * lock modes, some of which may be mutually incompatible. Extent locks are
- * considered incompatible if their modes are incompatible and their extents
- * intersect.  See the lock mode compatibility matrix in lustre_dlm.h.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/lustre_dlm.h"
-#include "../include/obd_support.h"
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_lib.h"
-#include "ldlm_internal.h"
-
-
-/* When a lock is cancelled by a client, the KMS may undergo change if this
- * is the "highest lock".  This function returns the new KMS value.
- * Caller must hold lr_lock already.
- *
- * NB: A lock on [x,y] protects a KMS of up to y + 1 bytes! */
-__u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms)
-{
-	struct ldlm_resource *res = lock->l_resource;
-	struct list_head *tmp;
-	struct ldlm_lock *lck;
-	__u64 kms = 0;
-
-	/* don't let another thread in ldlm_extent_shift_kms race in
-	 * just after we finish and take our lock into account in its
-	 * calculation of the kms */
-	lock->l_flags |= LDLM_FL_KMS_IGNORE;
-
-	list_for_each(tmp, &res->lr_granted) {
-		lck = list_entry(tmp, struct ldlm_lock, l_res_link);
-
-		if (lck->l_flags & LDLM_FL_KMS_IGNORE)
-			continue;
-
-		if (lck->l_policy_data.l_extent.end >= old_kms)
-			return old_kms;
-
-		/* This extent _has_ to be smaller than old_kms (checked above)
-		 * so kms can only ever be smaller or the same as old_kms. */
-		if (lck->l_policy_data.l_extent.end + 1 > kms)
-			kms = lck->l_policy_data.l_extent.end + 1;
-	}
-	LASSERTF(kms <= old_kms, "kms %llu old_kms %llu\n", kms, old_kms);
-
-	return kms;
-}
-EXPORT_SYMBOL(ldlm_extent_shift_kms);
-
-struct kmem_cache *ldlm_interval_slab;
-struct ldlm_interval *ldlm_interval_alloc(struct ldlm_lock *lock)
-{
-	struct ldlm_interval *node;
-
-	LASSERT(lock->l_resource->lr_type == LDLM_EXTENT);
-	OBD_SLAB_ALLOC_PTR_GFP(node, ldlm_interval_slab, GFP_NOFS);
-	if (node == NULL)
-		return NULL;
-
-	INIT_LIST_HEAD(&node->li_group);
-	ldlm_interval_attach(node, lock);
-	return node;
-}
-
-void ldlm_interval_free(struct ldlm_interval *node)
-{
-	if (node) {
-		LASSERT(list_empty(&node->li_group));
-		LASSERT(!interval_is_intree(&node->li_node));
-		OBD_SLAB_FREE(node, ldlm_interval_slab, sizeof(*node));
-	}
-}
-
-/* interval tree, for LDLM_EXTENT. */
-void ldlm_interval_attach(struct ldlm_interval *n,
-			  struct ldlm_lock *l)
-{
-	LASSERT(l->l_tree_node == NULL);
-	LASSERT(l->l_resource->lr_type == LDLM_EXTENT);
-
-	list_add_tail(&l->l_sl_policy, &n->li_group);
-	l->l_tree_node = n;
-}
-
-struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l)
-{
-	struct ldlm_interval *n = l->l_tree_node;
-
-	if (n == NULL)
-		return NULL;
-
-	LASSERT(!list_empty(&n->li_group));
-	l->l_tree_node = NULL;
-	list_del_init(&l->l_sl_policy);
-
-	return list_empty(&n->li_group) ? n : NULL;
-}
-
-static inline int lock_mode_to_index(ldlm_mode_t mode)
-{
-	int index;
-
-	LASSERT(mode != 0);
-	LASSERT(IS_PO2(mode));
-	for (index = -1; mode; index++)
-		mode >>= 1;
-	LASSERT(index < LCK_MODE_NUM);
-	return index;
-}
-
-/** Add newly granted lock into interval tree for the resource. */
-void ldlm_extent_add_lock(struct ldlm_resource *res,
-			  struct ldlm_lock *lock)
-{
-	struct interval_node *found, **root;
-	struct ldlm_interval *node;
-	struct ldlm_extent *extent;
-	int idx;
-
-	LASSERT(lock->l_granted_mode == lock->l_req_mode);
-
-	node = lock->l_tree_node;
-	LASSERT(node != NULL);
-	LASSERT(!interval_is_intree(&node->li_node));
-
-	idx = lock_mode_to_index(lock->l_granted_mode);
-	LASSERT(lock->l_granted_mode == 1 << idx);
-	LASSERT(lock->l_granted_mode == res->lr_itree[idx].lit_mode);
-
-	/* node extent initialize */
-	extent = &lock->l_policy_data.l_extent;
-	interval_set(&node->li_node, extent->start, extent->end);
-
-	root = &res->lr_itree[idx].lit_root;
-	found = interval_insert(&node->li_node, root);
-	if (found) { /* The policy group found. */
-		struct ldlm_interval *tmp;
-
-		tmp = ldlm_interval_detach(lock);
-		LASSERT(tmp != NULL);
-		ldlm_interval_free(tmp);
-		ldlm_interval_attach(to_ldlm_interval(found), lock);
-	}
-	res->lr_itree[idx].lit_size++;
-
-	/* even though we use interval tree to manage the extent lock, we also
-	 * add the locks into grant list, for debug purpose, .. */
-	ldlm_resource_add_lock(res, &res->lr_granted, lock);
-}
-
-/** Remove cancelled lock from resource interval tree. */
-void ldlm_extent_unlink_lock(struct ldlm_lock *lock)
-{
-	struct ldlm_resource *res = lock->l_resource;
-	struct ldlm_interval *node = lock->l_tree_node;
-	struct ldlm_interval_tree *tree;
-	int idx;
-
-	if (!node || !interval_is_intree(&node->li_node)) /* duplicate unlink */
-		return;
-
-	idx = lock_mode_to_index(lock->l_granted_mode);
-	LASSERT(lock->l_granted_mode == 1 << idx);
-	tree = &res->lr_itree[idx];
-
-	LASSERT(tree->lit_root != NULL); /* assure the tree is not null */
-
-	tree->lit_size--;
-	node = ldlm_interval_detach(lock);
-	if (node) {
-		interval_erase(&node->li_node, &tree->lit_root);
-		ldlm_interval_free(node);
-	}
-}
-
-void ldlm_extent_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy)
-{
-	memset(lpolicy, 0, sizeof(*lpolicy));
-	lpolicy->l_extent.start = wpolicy->l_extent.start;
-	lpolicy->l_extent.end = wpolicy->l_extent.end;
-	lpolicy->l_extent.gid = wpolicy->l_extent.gid;
-}
-
-void ldlm_extent_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy)
-{
-	memset(wpolicy, 0, sizeof(*wpolicy));
-	wpolicy->l_extent.start = lpolicy->l_extent.start;
-	wpolicy->l_extent.end = lpolicy->l_extent.end;
-	wpolicy->l_extent.gid = lpolicy->l_extent.gid;
-}
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
deleted file mode 100644
index a4c252febfe4..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
+++ /dev/null
@@ -1,859 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003 Hewlett-Packard Development Company LP.
- * Developed under the sponsorship of the US Government under
- * Subcontract No. B514193
- *
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-/**
- * This file implements POSIX lock type for Lustre.
- * Its policy properties are start and end of extent and PID.
- *
- * These locks are only done through MDS due to POSIX semantics requiring
- * e.g. that locks could be only partially released and as such split into
- * two parts, and also that two adjacent locks from the same process may be
- * merged into a single wider lock.
- *
- * Lock modes are mapped like this:
- * PR and PW for READ and WRITE locks
- * NL to request a releasing of a portion of the lock
- *
- * These flock locks never timeout.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../include/lustre_dlm.h"
-#include "../include/obd_support.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_lib.h"
-#include <linux/list.h>
-#include "ldlm_internal.h"
-
-int ldlm_flock_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
-			    void *data, int flag);
-
-/**
- * list_for_remaining_safe - iterate over the remaining entries in a list
- *	      and safeguard against removal of a list entry.
- * \param pos   the &struct list_head to use as a loop counter. pos MUST
- *	      have been initialized prior to using it in this macro.
- * \param n     another &struct list_head to use as temporary storage
- * \param head  the head for your list.
- */
-#define list_for_remaining_safe(pos, n, head) \
-	for (n = pos->next; pos != (head); pos = n, n = pos->next)
-
-static inline int
-ldlm_same_flock_owner(struct ldlm_lock *lock, struct ldlm_lock *new)
-{
-	return((new->l_policy_data.l_flock.owner ==
-		lock->l_policy_data.l_flock.owner) &&
-	       (new->l_export == lock->l_export));
-}
-
-static inline int
-ldlm_flocks_overlap(struct ldlm_lock *lock, struct ldlm_lock *new)
-{
-	return((new->l_policy_data.l_flock.start <=
-		lock->l_policy_data.l_flock.end) &&
-	       (new->l_policy_data.l_flock.end >=
-		lock->l_policy_data.l_flock.start));
-}
-
-static inline void ldlm_flock_blocking_link(struct ldlm_lock *req,
-					    struct ldlm_lock *lock)
-{
-	/* For server only */
-	if (req->l_export == NULL)
-		return;
-
-	LASSERT(hlist_unhashed(&req->l_exp_flock_hash));
-
-	req->l_policy_data.l_flock.blocking_owner =
-		lock->l_policy_data.l_flock.owner;
-	req->l_policy_data.l_flock.blocking_export =
-		lock->l_export;
-	req->l_policy_data.l_flock.blocking_refs = 0;
-
-	cfs_hash_add(req->l_export->exp_flock_hash,
-		     &req->l_policy_data.l_flock.owner,
-		     &req->l_exp_flock_hash);
-}
-
-static inline void ldlm_flock_blocking_unlink(struct ldlm_lock *req)
-{
-	/* For server only */
-	if (req->l_export == NULL)
-		return;
-
-	check_res_locked(req->l_resource);
-	if (req->l_export->exp_flock_hash != NULL &&
-	    !hlist_unhashed(&req->l_exp_flock_hash))
-		cfs_hash_del(req->l_export->exp_flock_hash,
-			     &req->l_policy_data.l_flock.owner,
-			     &req->l_exp_flock_hash);
-}
-
-static inline void
-ldlm_flock_destroy(struct ldlm_lock *lock, ldlm_mode_t mode, __u64 flags)
-{
-	LDLM_DEBUG(lock, "ldlm_flock_destroy(mode: %d, flags: 0x%llx)",
-		   mode, flags);
-
-	/* Safe to not lock here, since it should be empty anyway */
-	LASSERT(hlist_unhashed(&lock->l_exp_flock_hash));
-
-	list_del_init(&lock->l_res_link);
-	if (flags == LDLM_FL_WAIT_NOREPROC &&
-	    !(lock->l_flags & LDLM_FL_FAILED)) {
-		/* client side - set a flag to prevent sending a CANCEL */
-		lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_CBPENDING;
-
-		/* when reaching here, it is under lock_res_and_lock(). Thus,
-		   need call the nolock version of ldlm_lock_decref_internal*/
-		ldlm_lock_decref_internal_nolock(lock, mode);
-	}
-
-	ldlm_lock_destroy_nolock(lock);
-}
-
-/**
- * POSIX locks deadlock detection code.
- *
- * Given a new lock \a req and an existing lock \a bl_lock it conflicts
- * with, we need to iterate through all blocked POSIX locks for this
- * export and see if there is a deadlock condition arising. (i.e. when
- * one client holds a lock on something and want a lock on something
- * else and at the same time another client has the opposite situation).
- */
-static int
-ldlm_flock_deadlock(struct ldlm_lock *req, struct ldlm_lock *bl_lock)
-{
-	struct obd_export *req_exp = req->l_export;
-	struct obd_export *bl_exp = bl_lock->l_export;
-	__u64 req_owner = req->l_policy_data.l_flock.owner;
-	__u64 bl_owner = bl_lock->l_policy_data.l_flock.owner;
-
-	/* For server only */
-	if (req_exp == NULL)
-		return 0;
-
-	class_export_get(bl_exp);
-	while (1) {
-		struct obd_export *bl_exp_new;
-		struct ldlm_lock *lock = NULL;
-		struct ldlm_flock *flock;
-
-		if (bl_exp->exp_flock_hash != NULL)
-			lock = cfs_hash_lookup(bl_exp->exp_flock_hash,
-					       &bl_owner);
-		if (lock == NULL)
-			break;
-
-		LASSERT(req != lock);
-		flock = &lock->l_policy_data.l_flock;
-		LASSERT(flock->owner == bl_owner);
-		bl_owner = flock->blocking_owner;
-		bl_exp_new = class_export_get(flock->blocking_export);
-		class_export_put(bl_exp);
-
-		cfs_hash_put(bl_exp->exp_flock_hash, &lock->l_exp_flock_hash);
-		bl_exp = bl_exp_new;
-
-		if (bl_owner == req_owner && bl_exp == req_exp) {
-			class_export_put(bl_exp);
-			return 1;
-		}
-	}
-	class_export_put(bl_exp);
-
-	return 0;
-}
-
-static void ldlm_flock_cancel_on_deadlock(struct ldlm_lock *lock,
-					  struct list_head *work_list)
-{
-	CDEBUG(D_INFO, "reprocess deadlock req=%p\n", lock);
-
-	if ((exp_connect_flags(lock->l_export) &
-				OBD_CONNECT_FLOCK_DEAD) == 0) {
-		CERROR(
-		      "deadlock found, but client doesn't support flock canceliation\n");
-	} else {
-		LASSERT(lock->l_completion_ast);
-		LASSERT((lock->l_flags & LDLM_FL_AST_SENT) == 0);
-		lock->l_flags |= LDLM_FL_AST_SENT | LDLM_FL_CANCEL_ON_BLOCK |
-			LDLM_FL_FLOCK_DEADLOCK;
-		ldlm_flock_blocking_unlink(lock);
-		ldlm_resource_unlink_lock(lock);
-		ldlm_add_ast_work_item(lock, NULL, work_list);
-	}
-}
-
-/**
- * Process a granting attempt for flock lock.
- * Must be called under ns lock held.
- *
- * This function looks for any conflicts for \a lock in the granted or
- * waiting queues. The lock is granted if no conflicts are found in
- * either queue.
- *
- * It is also responsible for splitting a lock if a portion of the lock
- * is released.
- *
- * If \a first_enq is 0 (ie, called from ldlm_reprocess_queue):
- *   - blocking ASTs have already been sent
- *
- * If \a first_enq is 1 (ie, called from ldlm_lock_enqueue):
- *   - blocking ASTs have not been sent yet, so list of conflicting locks
- *     would be collected and ASTs sent.
- */
-int
-ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags, int first_enq,
-			ldlm_error_t *err, struct list_head *work_list)
-{
-	struct ldlm_resource *res = req->l_resource;
-	struct ldlm_namespace *ns = ldlm_res_to_ns(res);
-	struct list_head *tmp;
-	struct list_head *ownlocks = NULL;
-	struct ldlm_lock *lock = NULL;
-	struct ldlm_lock *new = req;
-	struct ldlm_lock *new2 = NULL;
-	ldlm_mode_t mode = req->l_req_mode;
-	int local = ns_is_client(ns);
-	int added = (mode == LCK_NL);
-	int overlaps = 0;
-	int splitted = 0;
-	const struct ldlm_callback_suite null_cbs = { NULL };
-
-	CDEBUG(D_DLMTRACE,
-	       "flags %#llx owner %llu pid %u mode %u start %llu end %llu\n",
-	       *flags, new->l_policy_data.l_flock.owner,
-	       new->l_policy_data.l_flock.pid, mode,
-	       req->l_policy_data.l_flock.start,
-	       req->l_policy_data.l_flock.end);
-
-	*err = ELDLM_OK;
-
-	if (local) {
-		/* No blocking ASTs are sent to the clients for
-		 * Posix file & record locks */
-		req->l_blocking_ast = NULL;
-	} else {
-		/* Called on the server for lock cancels. */
-		req->l_blocking_ast = ldlm_flock_blocking_ast;
-	}
-
-reprocess:
-	if ((*flags == LDLM_FL_WAIT_NOREPROC) || (mode == LCK_NL)) {
-		/* This loop determines where this processes locks start
-		 * in the resource lr_granted list. */
-		list_for_each(tmp, &res->lr_granted) {
-			lock = list_entry(tmp, struct ldlm_lock,
-					      l_res_link);
-			if (ldlm_same_flock_owner(lock, req)) {
-				ownlocks = tmp;
-				break;
-			}
-		}
-	} else {
-		int reprocess_failed = 0;
-
-		lockmode_verify(mode);
-
-		/* This loop determines if there are existing locks
-		 * that conflict with the new lock request. */
-		list_for_each(tmp, &res->lr_granted) {
-			lock = list_entry(tmp, struct ldlm_lock,
-					      l_res_link);
-
-			if (ldlm_same_flock_owner(lock, req)) {
-				if (!ownlocks)
-					ownlocks = tmp;
-				continue;
-			}
-
-			/* locks are compatible, overlap doesn't matter */
-			if (lockmode_compat(lock->l_granted_mode, mode))
-				continue;
-
-			if (!ldlm_flocks_overlap(lock, req))
-				continue;
-
-			if (!first_enq) {
-				reprocess_failed = 1;
-				if (ldlm_flock_deadlock(req, lock)) {
-					ldlm_flock_cancel_on_deadlock(req,
-							work_list);
-					return LDLM_ITER_CONTINUE;
-				}
-				continue;
-			}
-
-			if (*flags & LDLM_FL_BLOCK_NOWAIT) {
-				ldlm_flock_destroy(req, mode, *flags);
-				*err = -EAGAIN;
-				return LDLM_ITER_STOP;
-			}
-
-			if (*flags & LDLM_FL_TEST_LOCK) {
-				ldlm_flock_destroy(req, mode, *flags);
-				req->l_req_mode = lock->l_granted_mode;
-				req->l_policy_data.l_flock.pid =
-					lock->l_policy_data.l_flock.pid;
-				req->l_policy_data.l_flock.start =
-					lock->l_policy_data.l_flock.start;
-				req->l_policy_data.l_flock.end =
-					lock->l_policy_data.l_flock.end;
-				*flags |= LDLM_FL_LOCK_CHANGED;
-				return LDLM_ITER_STOP;
-			}
-
-			/* add lock to blocking list before deadlock
-			 * check to prevent race */
-			ldlm_flock_blocking_link(req, lock);
-
-			if (ldlm_flock_deadlock(req, lock)) {
-				ldlm_flock_blocking_unlink(req);
-				ldlm_flock_destroy(req, mode, *flags);
-				*err = -EDEADLK;
-				return LDLM_ITER_STOP;
-			}
-
-			ldlm_resource_add_lock(res, &res->lr_waiting, req);
-			*flags |= LDLM_FL_BLOCK_GRANTED;
-			return LDLM_ITER_STOP;
-		}
-		if (reprocess_failed)
-			return LDLM_ITER_CONTINUE;
-	}
-
-	if (*flags & LDLM_FL_TEST_LOCK) {
-		ldlm_flock_destroy(req, mode, *flags);
-		req->l_req_mode = LCK_NL;
-		*flags |= LDLM_FL_LOCK_CHANGED;
-		return LDLM_ITER_STOP;
-	}
-
-	/* In case we had slept on this lock request take it off of the
-	 * deadlock detection hash list. */
-	ldlm_flock_blocking_unlink(req);
-
-	/* Scan the locks owned by this process that overlap this request.
-	 * We may have to merge or split existing locks. */
-
-	if (!ownlocks)
-		ownlocks = &res->lr_granted;
-
-	list_for_remaining_safe(ownlocks, tmp, &res->lr_granted) {
-		lock = list_entry(ownlocks, struct ldlm_lock, l_res_link);
-
-		if (!ldlm_same_flock_owner(lock, new))
-			break;
-
-		if (lock->l_granted_mode == mode) {
-			/* If the modes are the same then we need to process
-			 * locks that overlap OR adjoin the new lock. The extra
-			 * logic condition is necessary to deal with arithmetic
-			 * overflow and underflow. */
-			if ((new->l_policy_data.l_flock.start >
-			     (lock->l_policy_data.l_flock.end + 1))
-			    && (lock->l_policy_data.l_flock.end !=
-				OBD_OBJECT_EOF))
-				continue;
-
-			if ((new->l_policy_data.l_flock.end <
-			     (lock->l_policy_data.l_flock.start - 1))
-			    && (lock->l_policy_data.l_flock.start != 0))
-				break;
-
-			if (new->l_policy_data.l_flock.start <
-			    lock->l_policy_data.l_flock.start) {
-				lock->l_policy_data.l_flock.start =
-					new->l_policy_data.l_flock.start;
-			} else {
-				new->l_policy_data.l_flock.start =
-					lock->l_policy_data.l_flock.start;
-			}
-
-			if (new->l_policy_data.l_flock.end >
-			    lock->l_policy_data.l_flock.end) {
-				lock->l_policy_data.l_flock.end =
-					new->l_policy_data.l_flock.end;
-			} else {
-				new->l_policy_data.l_flock.end =
-					lock->l_policy_data.l_flock.end;
-			}
-
-			if (added) {
-				ldlm_flock_destroy(lock, mode, *flags);
-			} else {
-				new = lock;
-				added = 1;
-			}
-			continue;
-		}
-
-		if (new->l_policy_data.l_flock.start >
-		    lock->l_policy_data.l_flock.end)
-			continue;
-
-		if (new->l_policy_data.l_flock.end <
-		    lock->l_policy_data.l_flock.start)
-			break;
-
-		++overlaps;
-
-		if (new->l_policy_data.l_flock.start <=
-		    lock->l_policy_data.l_flock.start) {
-			if (new->l_policy_data.l_flock.end <
-			    lock->l_policy_data.l_flock.end) {
-				lock->l_policy_data.l_flock.start =
-					new->l_policy_data.l_flock.end + 1;
-				break;
-			}
-			ldlm_flock_destroy(lock, lock->l_req_mode, *flags);
-			continue;
-		}
-		if (new->l_policy_data.l_flock.end >=
-		    lock->l_policy_data.l_flock.end) {
-			lock->l_policy_data.l_flock.end =
-				new->l_policy_data.l_flock.start - 1;
-			continue;
-		}
-
-		/* split the existing lock into two locks */
-
-		/* if this is an F_UNLCK operation then we could avoid
-		 * allocating a new lock and use the req lock passed in
-		 * with the request but this would complicate the reply
-		 * processing since updates to req get reflected in the
-		 * reply. The client side replays the lock request so
-		 * it must see the original lock data in the reply. */
-
-		/* XXX - if ldlm_lock_new() can sleep we should
-		 * release the lr_lock, allocate the new lock,
-		 * and restart processing this lock. */
-		if (!new2) {
-			unlock_res_and_lock(req);
-			new2 = ldlm_lock_create(ns, &res->lr_name, LDLM_FLOCK,
-						lock->l_granted_mode, &null_cbs,
-						NULL, 0, LVB_T_NONE);
-			lock_res_and_lock(req);
-			if (!new2) {
-				ldlm_flock_destroy(req, lock->l_granted_mode,
-						   *flags);
-				*err = -ENOLCK;
-				return LDLM_ITER_STOP;
-			}
-			goto reprocess;
-		}
-
-		splitted = 1;
-
-		new2->l_granted_mode = lock->l_granted_mode;
-		new2->l_policy_data.l_flock.pid =
-			new->l_policy_data.l_flock.pid;
-		new2->l_policy_data.l_flock.owner =
-			new->l_policy_data.l_flock.owner;
-		new2->l_policy_data.l_flock.start =
-			lock->l_policy_data.l_flock.start;
-		new2->l_policy_data.l_flock.end =
-			new->l_policy_data.l_flock.start - 1;
-		lock->l_policy_data.l_flock.start =
-			new->l_policy_data.l_flock.end + 1;
-		new2->l_conn_export = lock->l_conn_export;
-		if (lock->l_export != NULL) {
-			new2->l_export = class_export_lock_get(lock->l_export,
-							       new2);
-			if (new2->l_export->exp_lock_hash &&
-			    hlist_unhashed(&new2->l_exp_hash))
-				cfs_hash_add(new2->l_export->exp_lock_hash,
-					     &new2->l_remote_handle,
-					     &new2->l_exp_hash);
-		}
-		if (*flags == LDLM_FL_WAIT_NOREPROC)
-			ldlm_lock_addref_internal_nolock(new2,
-							 lock->l_granted_mode);
-
-		/* insert new2 at lock */
-		ldlm_resource_add_lock(res, ownlocks, new2);
-		LDLM_LOCK_RELEASE(new2);
-		break;
-	}
-
-	/* if new2 is created but never used, destroy it*/
-	if (splitted == 0 && new2 != NULL)
-		ldlm_lock_destroy_nolock(new2);
-
-	/* At this point we're granting the lock request. */
-	req->l_granted_mode = req->l_req_mode;
-
-	/* Add req to the granted queue before calling ldlm_reprocess_all(). */
-	if (!added) {
-		list_del_init(&req->l_res_link);
-		/* insert new lock before ownlocks in list. */
-		ldlm_resource_add_lock(res, ownlocks, req);
-	}
-
-	if (*flags != LDLM_FL_WAIT_NOREPROC) {
-		/* The only one possible case for client-side calls flock
-		 * policy function is ldlm_flock_completion_ast inside which
-		 * carries LDLM_FL_WAIT_NOREPROC flag. */
-		CERROR("Illegal parameter for client-side-only module.\n");
-		LBUG();
-	}
-
-	/* In case we're reprocessing the requested lock we can't destroy
-	 * it until after calling ldlm_add_ast_work_item() above so that laawi()
-	 * can bump the reference count on \a req. Otherwise \a req
-	 * could be freed before the completion AST can be sent.  */
-	if (added)
-		ldlm_flock_destroy(req, mode, *flags);
-
-	ldlm_resource_dump(D_INFO, res);
-	return LDLM_ITER_CONTINUE;
-}
-
-struct ldlm_flock_wait_data {
-	struct ldlm_lock *fwd_lock;
-	int	       fwd_generation;
-};
-
-static void
-ldlm_flock_interrupted_wait(void *data)
-{
-	struct ldlm_lock *lock;
-
-	lock = ((struct ldlm_flock_wait_data *)data)->fwd_lock;
-
-	/* take lock off the deadlock detection hash list. */
-	lock_res_and_lock(lock);
-	ldlm_flock_blocking_unlink(lock);
-
-	/* client side - set flag to prevent lock from being put on LRU list */
-	lock->l_flags |= LDLM_FL_CBPENDING;
-	unlock_res_and_lock(lock);
-}
-
-/**
- * Flock completion callback function.
- *
- * \param lock [in,out]: A lock to be handled
- * \param flags    [in]: flags
- * \param *data    [in]: ldlm_work_cp_ast_lock() will use ldlm_cb_set_arg
- *
- * \retval 0    : success
- * \retval <0   : failure
- */
-int
-ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
-{
-	struct file_lock		*getlk = lock->l_ast_data;
-	struct obd_device	      *obd;
-	struct obd_import	      *imp = NULL;
-	struct ldlm_flock_wait_data     fwd;
-	struct l_wait_info	      lwi;
-	ldlm_error_t		    err;
-	int			     rc = 0;
-
-	CDEBUG(D_DLMTRACE, "flags: 0x%llx data: %p getlk: %p\n",
-	       flags, data, getlk);
-
-	/* Import invalidation. We need to actually release the lock
-	 * references being held, so that it can go away. No point in
-	 * holding the lock even if app still believes it has it, since
-	 * server already dropped it anyway. Only for granted locks too. */
-	if ((lock->l_flags & (LDLM_FL_FAILED|LDLM_FL_LOCAL_ONLY)) ==
-	    (LDLM_FL_FAILED|LDLM_FL_LOCAL_ONLY)) {
-		if (lock->l_req_mode == lock->l_granted_mode &&
-		    lock->l_granted_mode != LCK_NL &&
-		    NULL == data)
-			ldlm_lock_decref_internal(lock, lock->l_req_mode);
-
-		/* Need to wake up the waiter if we were evicted */
-		wake_up(&lock->l_waitq);
-		return 0;
-	}
-
-	LASSERT(flags != LDLM_FL_WAIT_NOREPROC);
-
-	if (!(flags & (LDLM_FL_BLOCK_WAIT | LDLM_FL_BLOCK_GRANTED |
-		       LDLM_FL_BLOCK_CONV))) {
-		if (NULL == data)
-			/* mds granted the lock in the reply */
-			goto granted;
-		/* CP AST RPC: lock get granted, wake it up */
-		wake_up(&lock->l_waitq);
-		return 0;
-	}
-
-	LDLM_DEBUG(lock, "client-side enqueue returned a blocked lock, sleeping");
-	fwd.fwd_lock = lock;
-	obd = class_exp2obd(lock->l_conn_export);
-
-	/* if this is a local lock, there is no import */
-	if (NULL != obd)
-		imp = obd->u.cli.cl_import;
-
-	if (NULL != imp) {
-		spin_lock(&imp->imp_lock);
-		fwd.fwd_generation = imp->imp_generation;
-		spin_unlock(&imp->imp_lock);
-	}
-
-	lwi = LWI_TIMEOUT_INTR(0, NULL, ldlm_flock_interrupted_wait, &fwd);
-
-	/* Go to sleep until the lock is granted. */
-	rc = l_wait_event(lock->l_waitq, is_granted_or_cancelled(lock), &lwi);
-
-	if (rc) {
-		LDLM_DEBUG(lock, "client-side enqueue waking up: failed (%d)",
-			   rc);
-		return rc;
-	}
-
-granted:
-	OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_CP_CB_WAIT, 10);
-
-	if (lock->l_flags & LDLM_FL_DESTROYED) {
-		LDLM_DEBUG(lock, "client-side enqueue waking up: destroyed");
-		return 0;
-	}
-
-	if (lock->l_flags & LDLM_FL_FAILED) {
-		LDLM_DEBUG(lock, "client-side enqueue waking up: failed");
-		return -EIO;
-	}
-
-	if (rc) {
-		LDLM_DEBUG(lock, "client-side enqueue waking up: failed (%d)",
-			   rc);
-		return rc;
-	}
-
-	LDLM_DEBUG(lock, "client-side enqueue granted");
-
-	lock_res_and_lock(lock);
-
-	/* take lock off the deadlock detection hash list. */
-	ldlm_flock_blocking_unlink(lock);
-
-	/* ldlm_lock_enqueue() has already placed lock on the granted list. */
-	list_del_init(&lock->l_res_link);
-
-	if (lock->l_flags & LDLM_FL_FLOCK_DEADLOCK) {
-		LDLM_DEBUG(lock, "client-side enqueue deadlock received");
-		rc = -EDEADLK;
-	} else if (flags & LDLM_FL_TEST_LOCK) {
-		/* fcntl(F_GETLK) request */
-		/* The old mode was saved in getlk->fl_type so that if the mode
-		 * in the lock changes we can decref the appropriate refcount.*/
-		ldlm_flock_destroy(lock, getlk->fl_type, LDLM_FL_WAIT_NOREPROC);
-		switch (lock->l_granted_mode) {
-		case LCK_PR:
-			getlk->fl_type = F_RDLCK;
-			break;
-		case LCK_PW:
-			getlk->fl_type = F_WRLCK;
-			break;
-		default:
-			getlk->fl_type = F_UNLCK;
-		}
-		getlk->fl_pid = (pid_t)lock->l_policy_data.l_flock.pid;
-		getlk->fl_start = (loff_t)lock->l_policy_data.l_flock.start;
-		getlk->fl_end = (loff_t)lock->l_policy_data.l_flock.end;
-	} else {
-		__u64 noreproc = LDLM_FL_WAIT_NOREPROC;
-
-		/* We need to reprocess the lock to do merges or splits
-		 * with existing locks owned by this process. */
-		ldlm_process_flock_lock(lock, &noreproc, 1, &err, NULL);
-	}
-	unlock_res_and_lock(lock);
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_flock_completion_ast);
-
-int ldlm_flock_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
-			    void *data, int flag)
-{
-	LASSERT(lock);
-	LASSERT(flag == LDLM_CB_CANCELING);
-
-	/* take lock off the deadlock detection hash list. */
-	lock_res_and_lock(lock);
-	ldlm_flock_blocking_unlink(lock);
-	unlock_res_and_lock(lock);
-	return 0;
-}
-
-void ldlm_flock_policy_wire18_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				       ldlm_policy_data_t *lpolicy)
-{
-	memset(lpolicy, 0, sizeof(*lpolicy));
-	lpolicy->l_flock.start = wpolicy->l_flock.lfw_start;
-	lpolicy->l_flock.end = wpolicy->l_flock.lfw_end;
-	lpolicy->l_flock.pid = wpolicy->l_flock.lfw_pid;
-	/* Compat code, old clients had no idea about owner field and
-	 * relied solely on pid for ownership. Introduced in LU-104, 2.1,
-	 * April 2011 */
-	lpolicy->l_flock.owner = wpolicy->l_flock.lfw_pid;
-}
-
-
-void ldlm_flock_policy_wire21_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				       ldlm_policy_data_t *lpolicy)
-{
-	memset(lpolicy, 0, sizeof(*lpolicy));
-	lpolicy->l_flock.start = wpolicy->l_flock.lfw_start;
-	lpolicy->l_flock.end = wpolicy->l_flock.lfw_end;
-	lpolicy->l_flock.pid = wpolicy->l_flock.lfw_pid;
-	lpolicy->l_flock.owner = wpolicy->l_flock.lfw_owner;
-}
-
-void ldlm_flock_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy)
-{
-	memset(wpolicy, 0, sizeof(*wpolicy));
-	wpolicy->l_flock.lfw_start = lpolicy->l_flock.start;
-	wpolicy->l_flock.lfw_end = lpolicy->l_flock.end;
-	wpolicy->l_flock.lfw_pid = lpolicy->l_flock.pid;
-	wpolicy->l_flock.lfw_owner = lpolicy->l_flock.owner;
-}
-
-/*
- * Export handle<->flock hash operations.
- */
-static unsigned
-ldlm_export_flock_hash(struct cfs_hash *hs, const void *key, unsigned mask)
-{
-	return cfs_hash_u64_hash(*(__u64 *)key, mask);
-}
-
-static void *
-ldlm_export_flock_key(struct hlist_node *hnode)
-{
-	struct ldlm_lock *lock;
-
-	lock = hlist_entry(hnode, struct ldlm_lock, l_exp_flock_hash);
-	return &lock->l_policy_data.l_flock.owner;
-}
-
-static int
-ldlm_export_flock_keycmp(const void *key, struct hlist_node *hnode)
-{
-	return !memcmp(ldlm_export_flock_key(hnode), key, sizeof(__u64));
-}
-
-static void *
-ldlm_export_flock_object(struct hlist_node *hnode)
-{
-	return hlist_entry(hnode, struct ldlm_lock, l_exp_flock_hash);
-}
-
-static void
-ldlm_export_flock_get(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct ldlm_lock *lock;
-	struct ldlm_flock *flock;
-
-	lock = hlist_entry(hnode, struct ldlm_lock, l_exp_flock_hash);
-	LDLM_LOCK_GET(lock);
-
-	flock = &lock->l_policy_data.l_flock;
-	LASSERT(flock->blocking_export != NULL);
-	class_export_get(flock->blocking_export);
-	flock->blocking_refs++;
-}
-
-static void
-ldlm_export_flock_put(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct ldlm_lock *lock;
-	struct ldlm_flock *flock;
-
-	lock = hlist_entry(hnode, struct ldlm_lock, l_exp_flock_hash);
-	LDLM_LOCK_RELEASE(lock);
-
-	flock = &lock->l_policy_data.l_flock;
-	LASSERT(flock->blocking_export != NULL);
-	class_export_put(flock->blocking_export);
-	if (--flock->blocking_refs == 0) {
-		flock->blocking_owner = 0;
-		flock->blocking_export = NULL;
-	}
-}
-
-static cfs_hash_ops_t ldlm_export_flock_ops = {
-	.hs_hash	= ldlm_export_flock_hash,
-	.hs_key	 = ldlm_export_flock_key,
-	.hs_keycmp      = ldlm_export_flock_keycmp,
-	.hs_object      = ldlm_export_flock_object,
-	.hs_get	 = ldlm_export_flock_get,
-	.hs_put	 = ldlm_export_flock_put,
-	.hs_put_locked  = ldlm_export_flock_put,
-};
-
-int ldlm_init_flock_export(struct obd_export *exp)
-{
-	if (strcmp(exp->exp_obd->obd_type->typ_name, LUSTRE_MDT_NAME) != 0)
-		return 0;
-
-	exp->exp_flock_hash =
-		cfs_hash_create(obd_uuid2str(&exp->exp_client_uuid),
-				HASH_EXP_LOCK_CUR_BITS,
-				HASH_EXP_LOCK_MAX_BITS,
-				HASH_EXP_LOCK_BKT_BITS, 0,
-				CFS_HASH_MIN_THETA, CFS_HASH_MAX_THETA,
-				&ldlm_export_flock_ops,
-				CFS_HASH_DEFAULT | CFS_HASH_NBLK_CHANGE);
-	if (!exp->exp_flock_hash)
-		return -ENOMEM;
-
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_init_flock_export);
-
-void ldlm_destroy_flock_export(struct obd_export *exp)
-{
-	if (exp->exp_flock_hash) {
-		cfs_hash_putref(exp->exp_flock_hash);
-		exp->exp_flock_hash = NULL;
-	}
-}
-EXPORT_SYMBOL(ldlm_destroy_flock_export);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_inodebits.c b/drivers/staging/lustre/lustre/ldlm/ldlm_inodebits.c
deleted file mode 100644
index 40d3338506ae..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_inodebits.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/ldlm_inodebits.c
- *
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-/**
- * This file contains implementation of IBITS lock type
- *
- * IBITS lock type contains a bit mask determining various properties of an
- * object. The meanings of specific bits are specific to the caller and are
- * opaque to LDLM code.
- *
- * Locks with intersecting bitmasks and conflicting lock modes (e.g.  LCK_PW)
- * are considered conflicting.  See the lock mode compatibility matrix
- * in lustre_dlm.h.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../include/lustre_dlm.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_lib.h"
-#include "ldlm_internal.h"
-
-
-void ldlm_ibits_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy)
-{
-	memset(lpolicy, 0, sizeof(*lpolicy));
-	lpolicy->l_inodebits.bits = wpolicy->l_inodebits.bits;
-}
-
-void ldlm_ibits_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy)
-{
-	memset(wpolicy, 0, sizeof(*wpolicy));
-	wpolicy->l_inodebits.bits = lpolicy->l_inodebits.bits;
-}
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
deleted file mode 100644
index fa4b7c760d49..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
+++ /dev/null
@@ -1,360 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define MAX_STRING_SIZE 128
-
-extern int ldlm_srv_namespace_nr;
-extern int ldlm_cli_namespace_nr;
-extern struct mutex ldlm_srv_namespace_lock;
-extern struct list_head ldlm_srv_namespace_list;
-extern struct mutex ldlm_cli_namespace_lock;
-extern struct list_head ldlm_cli_active_namespace_list;
-extern struct list_head ldlm_cli_inactive_namespace_list;
-
-static inline int ldlm_namespace_nr_read(ldlm_side_t client)
-{
-	return client == LDLM_NAMESPACE_SERVER ?
-		ldlm_srv_namespace_nr : ldlm_cli_namespace_nr;
-}
-
-static inline void ldlm_namespace_nr_inc(ldlm_side_t client)
-{
-	if (client == LDLM_NAMESPACE_SERVER)
-		ldlm_srv_namespace_nr++;
-	else
-		ldlm_cli_namespace_nr++;
-}
-
-static inline void ldlm_namespace_nr_dec(ldlm_side_t client)
-{
-	if (client == LDLM_NAMESPACE_SERVER)
-		ldlm_srv_namespace_nr--;
-	else
-		ldlm_cli_namespace_nr--;
-}
-
-static inline struct list_head *ldlm_namespace_list(ldlm_side_t client)
-{
-	return client == LDLM_NAMESPACE_SERVER ?
-		&ldlm_srv_namespace_list : &ldlm_cli_active_namespace_list;
-}
-
-static inline struct list_head *ldlm_namespace_inactive_list(ldlm_side_t client)
-{
-	return client == LDLM_NAMESPACE_SERVER ?
-		&ldlm_srv_namespace_list : &ldlm_cli_inactive_namespace_list;
-}
-
-static inline struct mutex *ldlm_namespace_lock(ldlm_side_t client)
-{
-	return client == LDLM_NAMESPACE_SERVER ?
-		&ldlm_srv_namespace_lock : &ldlm_cli_namespace_lock;
-}
-
-/* ns_bref is the number of resources in this namespace */
-static inline int ldlm_ns_empty(struct ldlm_namespace *ns)
-{
-	return atomic_read(&ns->ns_bref) == 0;
-}
-
-void ldlm_namespace_move_to_active_locked(struct ldlm_namespace *, ldlm_side_t);
-void ldlm_namespace_move_to_inactive_locked(struct ldlm_namespace *,
-					    ldlm_side_t);
-struct ldlm_namespace *ldlm_namespace_first_locked(ldlm_side_t);
-
-/* ldlm_request.c */
-/* Cancel lru flag, it indicates we cancel aged locks. */
-enum {
-	LDLM_CANCEL_AGED   = 1 << 0, /* Cancel aged locks (non lru resize). */
-	LDLM_CANCEL_PASSED = 1 << 1, /* Cancel passed number of locks. */
-	LDLM_CANCEL_SHRINK = 1 << 2, /* Cancel locks from shrinker. */
-	LDLM_CANCEL_LRUR   = 1 << 3, /* Cancel locks from lru resize. */
-	LDLM_CANCEL_NO_WAIT = 1 << 4 /* Cancel locks w/o blocking (neither
-				      * sending nor waiting for any rpcs) */
-};
-
-int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr,
-		    ldlm_cancel_flags_t sync, int flags);
-int ldlm_cancel_lru_local(struct ldlm_namespace *ns,
-			  struct list_head *cancels, int count, int max,
-			  ldlm_cancel_flags_t cancel_flags, int flags);
-extern int ldlm_enqueue_min;
-int ldlm_get_enq_timeout(struct ldlm_lock *lock);
-
-/* ldlm_resource.c */
-int ldlm_resource_putref_locked(struct ldlm_resource *res);
-void ldlm_resource_insert_lock_after(struct ldlm_lock *original,
-				     struct ldlm_lock *new);
-void ldlm_namespace_free_prior(struct ldlm_namespace *ns,
-			       struct obd_import *imp, int force);
-void ldlm_namespace_free_post(struct ldlm_namespace *ns);
-/* ldlm_lock.c */
-
-struct ldlm_cb_set_arg {
-	struct ptlrpc_request_set	*set;
-	int				 type; /* LDLM_{CP,BL,GL}_CALLBACK */
-	atomic_t			 restart;
-	struct list_head			*list;
-	union ldlm_gl_desc		*gl_desc; /* glimpse AST descriptor */
-};
-
-enum ldlm_desc_ast_t {
-	LDLM_WORK_BL_AST,
-	LDLM_WORK_CP_AST,
-	LDLM_WORK_REVOKE_AST,
-	LDLM_WORK_GL_AST
-};
-
-void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list);
-int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
-		  enum req_location loc, void *data, int size);
-struct ldlm_lock *
-ldlm_lock_create(struct ldlm_namespace *ns, const struct ldlm_res_id *,
-		 ldlm_type_t type, ldlm_mode_t,
-		 const struct ldlm_callback_suite *cbs,
-		 void *data, __u32 lvb_len, enum lvb_type lvb_type);
-ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *, struct ldlm_lock **,
-			       void *cookie, __u64 *flags);
-void ldlm_lock_addref_internal(struct ldlm_lock *, __u32 mode);
-void ldlm_lock_addref_internal_nolock(struct ldlm_lock *, __u32 mode);
-void ldlm_lock_decref_internal(struct ldlm_lock *, __u32 mode);
-void ldlm_lock_decref_internal_nolock(struct ldlm_lock *, __u32 mode);
-void ldlm_add_ast_work_item(struct ldlm_lock *lock, struct ldlm_lock *new,
-			    struct list_head *work_list);
-int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *rpc_list,
-		      enum ldlm_desc_ast_t ast_type);
-int ldlm_work_gl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq);
-int ldlm_lock_remove_from_lru(struct ldlm_lock *lock);
-int ldlm_lock_remove_from_lru_nolock(struct ldlm_lock *lock);
-void ldlm_lock_add_to_lru_nolock(struct ldlm_lock *lock);
-void ldlm_lock_add_to_lru(struct ldlm_lock *lock);
-void ldlm_lock_touch_in_lru(struct ldlm_lock *lock);
-void ldlm_lock_destroy_nolock(struct ldlm_lock *lock);
-
-void ldlm_cancel_locks_for_export(struct obd_export *export);
-
-/* ldlm_lockd.c */
-int ldlm_bl_to_thread_lock(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
-			   struct ldlm_lock *lock);
-int ldlm_bl_to_thread_list(struct ldlm_namespace *ns,
-			   struct ldlm_lock_desc *ld,
-			   struct list_head *cancels, int count,
-			   ldlm_cancel_flags_t cancel_flags);
-
-void ldlm_handle_bl_callback(struct ldlm_namespace *ns,
-			     struct ldlm_lock_desc *ld, struct ldlm_lock *lock);
-
-extern struct kmem_cache *ldlm_resource_slab;
-
-/* ldlm_lockd.c & ldlm_lock.c */
-extern struct kmem_cache *ldlm_lock_slab;
-
-/* ldlm_extent.c */
-void ldlm_extent_add_lock(struct ldlm_resource *res, struct ldlm_lock *lock);
-void ldlm_extent_unlink_lock(struct ldlm_lock *lock);
-
-/* ldlm_flock.c */
-int ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags,
-			    int first_enq, ldlm_error_t *err,
-			    struct list_head *work_list);
-int ldlm_init_flock_export(struct obd_export *exp);
-void ldlm_destroy_flock_export(struct obd_export *exp);
-
-/* l_lock.c */
-void l_check_ns_lock(struct ldlm_namespace *ns);
-void l_check_no_ns_lock(struct ldlm_namespace *ns);
-
-extern struct dentry *ldlm_svc_debugfs_dir;
-
-struct ldlm_state {
-	struct ptlrpc_service *ldlm_cb_service;
-	struct ptlrpc_service *ldlm_cancel_service;
-	struct ptlrpc_client *ldlm_client;
-	struct ptlrpc_connection *ldlm_server_conn;
-	struct ldlm_bl_pool *ldlm_bl_pool;
-};
-
-/* interval tree, for LDLM_EXTENT. */
-extern struct kmem_cache *ldlm_interval_slab; /* slab cache for ldlm_interval */
-void ldlm_interval_attach(struct ldlm_interval *n, struct ldlm_lock *l);
-struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l);
-struct ldlm_interval *ldlm_interval_alloc(struct ldlm_lock *lock);
-void ldlm_interval_free(struct ldlm_interval *node);
-/* this function must be called with res lock held */
-static inline struct ldlm_extent *
-ldlm_interval_extent(struct ldlm_interval *node)
-{
-	struct ldlm_lock *lock;
-
-	LASSERT(!list_empty(&node->li_group));
-
-	lock = list_entry(node->li_group.next, struct ldlm_lock,
-			      l_sl_policy);
-	return &lock->l_policy_data.l_extent;
-}
-
-int ldlm_init(void);
-void ldlm_exit(void);
-
-enum ldlm_policy_res {
-	LDLM_POLICY_CANCEL_LOCK,
-	LDLM_POLICY_KEEP_LOCK,
-	LDLM_POLICY_SKIP_LOCK
-};
-
-typedef enum ldlm_policy_res ldlm_policy_res_t;
-
-#define LDLM_POOL_SYSFS_PRINT_int(v) sprintf(buf, "%d\n", v)
-#define LDLM_POOL_SYSFS_SET_int(a, b) { a = b; }
-#define LDLM_POOL_SYSFS_PRINT_u64(v) sprintf(buf, "%lld\n", v)
-#define LDLM_POOL_SYSFS_SET_u64(a, b) { a = b; }
-#define LDLM_POOL_SYSFS_PRINT_atomic(v) sprintf(buf, "%d\n", atomic_read(&v))
-#define LDLM_POOL_SYSFS_SET_atomic(a, b) atomic_set(&a, b)
-
-#define LDLM_POOL_SYSFS_READER_SHOW(var, type)				    \
-	static ssize_t var##_show(struct kobject *kobj,			    \
-				  struct attribute *attr,		    \
-				  char *buf)				    \
-	{								    \
-		struct ldlm_pool *pl = container_of(kobj, struct ldlm_pool, \
-						    pl_kobj);		    \
-		type tmp;						    \
-									    \
-		spin_lock(&pl->pl_lock);				    \
-		tmp = pl->pl_##var;					    \
-		spin_unlock(&pl->pl_lock);				    \
-									    \
-		return LDLM_POOL_SYSFS_PRINT_##type(tmp);		    \
-	}								    \
-	struct __##var##__dummy_read {; } /* semicolon catcher */
-
-#define LDLM_POOL_SYSFS_WRITER_STORE(var, type)				    \
-	static ssize_t var##_store(struct kobject *kobj,		    \
-				     struct attribute *attr,		    \
-				     const char *buffer,		    \
-				     size_t count)			    \
-	{								    \
-		struct ldlm_pool *pl = container_of(kobj, struct ldlm_pool, \
-						    pl_kobj);		    \
-		unsigned long tmp;					    \
-		int rc;							    \
-									    \
-		rc = kstrtoul(buffer, 10, &tmp);			    \
-		if (rc < 0) {						    \
-			return rc;					    \
-		}							    \
-									    \
-		spin_lock(&pl->pl_lock);				    \
-		LDLM_POOL_SYSFS_SET_##type(pl->pl_##var, tmp);		    \
-		spin_unlock(&pl->pl_lock);				    \
-									    \
-		return count;						    \
-	}								    \
-	struct __##var##__dummy_write {; } /* semicolon catcher */
-
-#define LDLM_POOL_SYSFS_READER_NOLOCK_SHOW(var, type)			    \
-	static ssize_t var##_show(struct kobject *kobj,		    \
-				    struct attribute *attr,		    \
-				    char *buf)				    \
-	{								    \
-		struct ldlm_pool *pl = container_of(kobj, struct ldlm_pool, \
-						    pl_kobj);		    \
-									    \
-		return LDLM_POOL_SYSFS_PRINT_##type(pl->pl_##var);	    \
-	}								    \
-	struct __##var##__dummy_read {; } /* semicolon catcher */
-
-#define LDLM_POOL_SYSFS_WRITER_NOLOCK_STORE(var, type)			    \
-	static ssize_t var##_store(struct kobject *kobj,		    \
-				     struct attribute *attr,		    \
-				     const char *buffer,		    \
-				     size_t count)			    \
-	{								    \
-		struct ldlm_pool *pl = container_of(kobj, struct ldlm_pool, \
-						    pl_kobj);		    \
-		unsigned long tmp;					    \
-		int rc;							    \
-									    \
-		rc = kstrtoul(buffer, 10, &tmp);			    \
-		if (rc < 0) {						    \
-			return rc;					    \
-		}							    \
-									    \
-		LDLM_POOL_SYSFS_SET_##type(pl->pl_##var, tmp);		    \
-									    \
-		return count;						    \
-	}								    \
-	struct __##var##__dummy_write {; } /* semicolon catcher */
-
-static inline int is_granted_or_cancelled(struct ldlm_lock *lock)
-{
-	int ret = 0;
-
-	lock_res_and_lock(lock);
-	if (((lock->l_req_mode == lock->l_granted_mode) &&
-	     !(lock->l_flags & LDLM_FL_CP_REQD)) ||
-	    (lock->l_flags & (LDLM_FL_FAILED | LDLM_FL_CANCEL)))
-		ret = 1;
-	unlock_res_and_lock(lock);
-
-	return ret;
-}
-
-typedef void (*ldlm_policy_wire_to_local_t)(const ldlm_wire_policy_data_t *,
-					    ldlm_policy_data_t *);
-
-typedef void (*ldlm_policy_local_to_wire_t)(const ldlm_policy_data_t *,
-					    ldlm_wire_policy_data_t *);
-
-void ldlm_plain_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy);
-void ldlm_plain_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy);
-void ldlm_ibits_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy);
-void ldlm_ibits_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy);
-void ldlm_extent_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy);
-void ldlm_extent_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy);
-void ldlm_flock_policy_wire18_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy);
-void ldlm_flock_policy_wire21_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy);
-
-void ldlm_flock_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
deleted file mode 100644
index badd227e4f67..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
+++ /dev/null
@@ -1,869 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-/**
- * This file deals with various client/target related logic including recovery.
- *
- * TODO: This code more logically belongs in the ptlrpc module than in ldlm and
- * should be moved.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_net.h"
-#include "../include/lustre_sec.h"
-#include "ldlm_internal.h"
-
-/* @priority: If non-zero, move the selected connection to the list head.
- * @create: If zero, only search in existing connections.
- */
-static int import_set_conn(struct obd_import *imp, struct obd_uuid *uuid,
-			   int priority, int create)
-{
-	struct ptlrpc_connection *ptlrpc_conn;
-	struct obd_import_conn *imp_conn = NULL, *item;
-	int rc = 0;
-
-	if (!create && !priority) {
-		CDEBUG(D_HA, "Nothing to do\n");
-		return -EINVAL;
-	}
-
-	ptlrpc_conn = ptlrpc_uuid_to_connection(uuid);
-	if (!ptlrpc_conn) {
-		CDEBUG(D_HA, "can't find connection %s\n", uuid->uuid);
-		return -ENOENT;
-	}
-
-	if (create) {
-		imp_conn = kzalloc(sizeof(*imp_conn), GFP_NOFS);
-		if (!imp_conn) {
-			rc = -ENOMEM;
-			goto out_put;
-		}
-	}
-
-	spin_lock(&imp->imp_lock);
-	list_for_each_entry(item, &imp->imp_conn_list, oic_item) {
-		if (obd_uuid_equals(uuid, &item->oic_uuid)) {
-			if (priority) {
-				list_del(&item->oic_item);
-				list_add(&item->oic_item,
-					     &imp->imp_conn_list);
-				item->oic_last_attempt = 0;
-			}
-			CDEBUG(D_HA, "imp %p@%s: found existing conn %s%s\n",
-			       imp, imp->imp_obd->obd_name, uuid->uuid,
-			       (priority ? ", moved to head" : ""));
-			spin_unlock(&imp->imp_lock);
-			rc = 0;
-			goto out_free;
-		}
-	}
-	/* No existing import connection found for \a uuid. */
-	if (create) {
-		imp_conn->oic_conn = ptlrpc_conn;
-		imp_conn->oic_uuid = *uuid;
-		imp_conn->oic_last_attempt = 0;
-		if (priority)
-			list_add(&imp_conn->oic_item, &imp->imp_conn_list);
-		else
-			list_add_tail(&imp_conn->oic_item,
-					  &imp->imp_conn_list);
-		CDEBUG(D_HA, "imp %p@%s: add connection %s at %s\n",
-		       imp, imp->imp_obd->obd_name, uuid->uuid,
-		       (priority ? "head" : "tail"));
-	} else {
-		spin_unlock(&imp->imp_lock);
-		rc = -ENOENT;
-		goto out_free;
-	}
-
-	spin_unlock(&imp->imp_lock);
-	return 0;
-out_free:
-	kfree(imp_conn);
-out_put:
-	ptlrpc_connection_put(ptlrpc_conn);
-	return rc;
-}
-
-int import_set_conn_priority(struct obd_import *imp, struct obd_uuid *uuid)
-{
-	return import_set_conn(imp, uuid, 1, 0);
-}
-
-int client_import_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
-			   int priority)
-{
-	return import_set_conn(imp, uuid, priority, 1);
-}
-EXPORT_SYMBOL(client_import_add_conn);
-
-int client_import_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
-{
-	struct obd_import_conn *imp_conn;
-	struct obd_export *dlmexp;
-	int rc = -ENOENT;
-
-	spin_lock(&imp->imp_lock);
-	if (list_empty(&imp->imp_conn_list)) {
-		LASSERT(!imp->imp_connection);
-		goto out;
-	}
-
-	list_for_each_entry(imp_conn, &imp->imp_conn_list, oic_item) {
-		if (!obd_uuid_equals(uuid, &imp_conn->oic_uuid))
-			continue;
-		LASSERT(imp_conn->oic_conn);
-
-		if (imp_conn == imp->imp_conn_current) {
-			LASSERT(imp_conn->oic_conn == imp->imp_connection);
-
-			if (imp->imp_state != LUSTRE_IMP_CLOSED &&
-			    imp->imp_state != LUSTRE_IMP_DISCON) {
-				CERROR("can't remove current connection\n");
-				rc = -EBUSY;
-				goto out;
-			}
-
-			ptlrpc_connection_put(imp->imp_connection);
-			imp->imp_connection = NULL;
-
-			dlmexp = class_conn2export(&imp->imp_dlm_handle);
-			if (dlmexp && dlmexp->exp_connection) {
-				LASSERT(dlmexp->exp_connection ==
-					imp_conn->oic_conn);
-				ptlrpc_connection_put(dlmexp->exp_connection);
-				dlmexp->exp_connection = NULL;
-			}
-		}
-
-		list_del(&imp_conn->oic_item);
-		ptlrpc_connection_put(imp_conn->oic_conn);
-		kfree(imp_conn);
-		CDEBUG(D_HA, "imp %p@%s: remove connection %s\n",
-		       imp, imp->imp_obd->obd_name, uuid->uuid);
-		rc = 0;
-		break;
-	}
-out:
-	spin_unlock(&imp->imp_lock);
-	if (rc == -ENOENT)
-		CERROR("connection %s not found\n", uuid->uuid);
-	return rc;
-}
-EXPORT_SYMBOL(client_import_del_conn);
-
-/**
- * Find conn UUID by peer NID. \a peer is a server NID. This function is used
- * to find a conn uuid of \a imp which can reach \a peer.
- */
-int client_import_find_conn(struct obd_import *imp, lnet_nid_t peer,
-			    struct obd_uuid *uuid)
-{
-	struct obd_import_conn *conn;
-	int rc = -ENOENT;
-
-	spin_lock(&imp->imp_lock);
-	list_for_each_entry(conn, &imp->imp_conn_list, oic_item) {
-		/* Check if conn UUID does have this peer NID. */
-		if (class_check_uuid(&conn->oic_uuid, peer)) {
-			*uuid = conn->oic_uuid;
-			rc = 0;
-			break;
-		}
-	}
-	spin_unlock(&imp->imp_lock);
-	return rc;
-}
-EXPORT_SYMBOL(client_import_find_conn);
-
-void client_destroy_import(struct obd_import *imp)
-{
-	/* Drop security policy instance after all RPCs have finished/aborted
-	 * to let all busy contexts be released. */
-	class_import_get(imp);
-	class_destroy_import(imp);
-	sptlrpc_import_sec_put(imp);
-	class_import_put(imp);
-}
-EXPORT_SYMBOL(client_destroy_import);
-
-/**
- * Check whether or not the OSC is on MDT.
- * In the config log,
- * osc on MDT
- *	setup 0:{fsname}-OSTxxxx-osc[-MDTxxxx] 1:lustre-OST0000_UUID 2:NID
- * osc on client
- *	setup 0:{fsname}-OSTxxxx-osc 1:lustre-OST0000_UUID 2:NID
- *
- **/
-static int osc_on_mdt(char *obdname)
-{
-	char *ptr;
-
-	ptr = strrchr(obdname, '-');
-	if (ptr == NULL)
-		return 0;
-
-	if (strncmp(ptr + 1, "MDT", 3) == 0)
-		return 1;
-
-	return 0;
-}
-
-/* Configure an RPC client OBD device.
- *
- * lcfg parameters:
- * 1 - client UUID
- * 2 - server UUID
- * 3 - inactive-on-startup
- */
-int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg)
-{
-	struct client_obd *cli = &obddev->u.cli;
-	struct obd_import *imp;
-	struct obd_uuid server_uuid;
-	int rq_portal, rp_portal, connect_op;
-	char *name = obddev->obd_type->typ_name;
-	ldlm_ns_type_t ns_type = LDLM_NS_TYPE_UNKNOWN;
-	int rc;
-
-	/* In a more perfect world, we would hang a ptlrpc_client off of
-	 * obd_type and just use the values from there. */
-	if (!strcmp(name, LUSTRE_OSC_NAME)) {
-		rq_portal = OST_REQUEST_PORTAL;
-		rp_portal = OSC_REPLY_PORTAL;
-		connect_op = OST_CONNECT;
-		cli->cl_sp_me = LUSTRE_SP_CLI;
-		cli->cl_sp_to = LUSTRE_SP_OST;
-		ns_type = LDLM_NS_TYPE_OSC;
-	} else if (!strcmp(name, LUSTRE_MDC_NAME) ||
-		   !strcmp(name, LUSTRE_LWP_NAME)) {
-		rq_portal = MDS_REQUEST_PORTAL;
-		rp_portal = MDC_REPLY_PORTAL;
-		connect_op = MDS_CONNECT;
-		cli->cl_sp_me = LUSTRE_SP_CLI;
-		cli->cl_sp_to = LUSTRE_SP_MDT;
-		ns_type = LDLM_NS_TYPE_MDC;
-	} else if (!strcmp(name, LUSTRE_OSP_NAME)) {
-		if (strstr(lustre_cfg_buf(lcfg, 1), "OST") == NULL) {
-			/* OSP_on_MDT for other MDTs */
-			connect_op = MDS_CONNECT;
-			cli->cl_sp_to = LUSTRE_SP_MDT;
-			ns_type = LDLM_NS_TYPE_MDC;
-			rq_portal = OUT_PORTAL;
-		} else {
-			/* OSP on MDT for OST */
-			connect_op = OST_CONNECT;
-			cli->cl_sp_to = LUSTRE_SP_OST;
-			ns_type = LDLM_NS_TYPE_OSC;
-			rq_portal = OST_REQUEST_PORTAL;
-		}
-		rp_portal = OSC_REPLY_PORTAL;
-		cli->cl_sp_me = LUSTRE_SP_CLI;
-	} else if (!strcmp(name, LUSTRE_MGC_NAME)) {
-		rq_portal = MGS_REQUEST_PORTAL;
-		rp_portal = MGC_REPLY_PORTAL;
-		connect_op = MGS_CONNECT;
-		cli->cl_sp_me = LUSTRE_SP_MGC;
-		cli->cl_sp_to = LUSTRE_SP_MGS;
-		cli->cl_flvr_mgc.sf_rpc = SPTLRPC_FLVR_INVALID;
-		ns_type = LDLM_NS_TYPE_MGC;
-	} else {
-		CERROR("unknown client OBD type \"%s\", can't setup\n",
-		       name);
-		return -EINVAL;
-	}
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
-		CERROR("requires a TARGET UUID\n");
-		return -EINVAL;
-	}
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 1) > 37) {
-		CERROR("client UUID must be less than 38 characters\n");
-		return -EINVAL;
-	}
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 2) < 1) {
-		CERROR("setup requires a SERVER UUID\n");
-		return -EINVAL;
-	}
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 2) > 37) {
-		CERROR("target UUID must be less than 38 characters\n");
-		return -EINVAL;
-	}
-
-	init_rwsem(&cli->cl_sem);
-	mutex_init(&cli->cl_mgc_mutex);
-	cli->cl_conn_count = 0;
-	memcpy(server_uuid.uuid, lustre_cfg_buf(lcfg, 2),
-	       min_t(unsigned int, LUSTRE_CFG_BUFLEN(lcfg, 2),
-		     sizeof(server_uuid)));
-
-	cli->cl_dirty = 0;
-	cli->cl_avail_grant = 0;
-	/* FIXME: Should limit this for the sum of all cl_dirty_max. */
-	cli->cl_dirty_max = OSC_MAX_DIRTY_DEFAULT * 1024 * 1024;
-	if (cli->cl_dirty_max >> PAGE_CACHE_SHIFT > totalram_pages / 8)
-		cli->cl_dirty_max = totalram_pages << (PAGE_CACHE_SHIFT - 3);
-	INIT_LIST_HEAD(&cli->cl_cache_waiters);
-	INIT_LIST_HEAD(&cli->cl_loi_ready_list);
-	INIT_LIST_HEAD(&cli->cl_loi_hp_ready_list);
-	INIT_LIST_HEAD(&cli->cl_loi_write_list);
-	INIT_LIST_HEAD(&cli->cl_loi_read_list);
-	client_obd_list_lock_init(&cli->cl_loi_list_lock);
-	atomic_set(&cli->cl_pending_w_pages, 0);
-	atomic_set(&cli->cl_pending_r_pages, 0);
-	cli->cl_r_in_flight = 0;
-	cli->cl_w_in_flight = 0;
-
-	spin_lock_init(&cli->cl_read_rpc_hist.oh_lock);
-	spin_lock_init(&cli->cl_write_rpc_hist.oh_lock);
-	spin_lock_init(&cli->cl_read_page_hist.oh_lock);
-	spin_lock_init(&cli->cl_write_page_hist.oh_lock);
-	spin_lock_init(&cli->cl_read_offset_hist.oh_lock);
-	spin_lock_init(&cli->cl_write_offset_hist.oh_lock);
-
-	/* lru for osc. */
-	INIT_LIST_HEAD(&cli->cl_lru_osc);
-	atomic_set(&cli->cl_lru_shrinkers, 0);
-	atomic_set(&cli->cl_lru_busy, 0);
-	atomic_set(&cli->cl_lru_in_list, 0);
-	INIT_LIST_HEAD(&cli->cl_lru_list);
-	client_obd_list_lock_init(&cli->cl_lru_list_lock);
-
-	init_waitqueue_head(&cli->cl_destroy_waitq);
-	atomic_set(&cli->cl_destroy_in_flight, 0);
-	/* Turn on checksumming by default. */
-	cli->cl_checksum = 1;
-	/*
-	 * The supported checksum types will be worked out at connect time
-	 * Set cl_chksum* to CRC32 for now to avoid returning screwed info
-	 * through procfs.
-	 */
-	cli->cl_cksum_type = cli->cl_supp_cksum_types = OBD_CKSUM_CRC32;
-	atomic_set(&cli->cl_resends, OSC_DEFAULT_RESENDS);
-
-	/* This value may be reduced at connect time in
-	 * ptlrpc_connect_interpret() . We initialize it to only
-	 * 1MB until we know what the performance looks like.
-	 * In the future this should likely be increased. LU-1431 */
-	cli->cl_max_pages_per_rpc = min_t(int, PTLRPC_MAX_BRW_PAGES,
-					  LNET_MTU >> PAGE_CACHE_SHIFT);
-
-	if (!strcmp(name, LUSTRE_MDC_NAME)) {
-		cli->cl_max_rpcs_in_flight = MDC_MAX_RIF_DEFAULT;
-	} else if (totalram_pages >> (20 - PAGE_CACHE_SHIFT) <= 128 /* MB */) {
-		cli->cl_max_rpcs_in_flight = 2;
-	} else if (totalram_pages >> (20 - PAGE_CACHE_SHIFT) <= 256 /* MB */) {
-		cli->cl_max_rpcs_in_flight = 3;
-	} else if (totalram_pages >> (20 - PAGE_CACHE_SHIFT) <= 512 /* MB */) {
-		cli->cl_max_rpcs_in_flight = 4;
-	} else {
-		if (osc_on_mdt(obddev->obd_name))
-			cli->cl_max_rpcs_in_flight = MDS_OSC_MAX_RIF_DEFAULT;
-		else
-			cli->cl_max_rpcs_in_flight = OSC_MAX_RIF_DEFAULT;
-	}
-	rc = ldlm_get_ref();
-	if (rc) {
-		CERROR("ldlm_get_ref failed: %d\n", rc);
-		goto err;
-	}
-
-	ptlrpc_init_client(rq_portal, rp_portal, name,
-			   &obddev->obd_ldlm_client);
-
-	imp = class_new_import(obddev);
-	if (imp == NULL) {
-		rc = -ENOENT;
-		goto err_ldlm;
-	}
-	imp->imp_client = &obddev->obd_ldlm_client;
-	imp->imp_connect_op = connect_op;
-	memcpy(cli->cl_target_uuid.uuid, lustre_cfg_buf(lcfg, 1),
-	       LUSTRE_CFG_BUFLEN(lcfg, 1));
-	class_import_put(imp);
-
-	rc = client_import_add_conn(imp, &server_uuid, 1);
-	if (rc) {
-		CERROR("can't add initial connection\n");
-		goto err_import;
-	}
-
-	cli->cl_import = imp;
-	/* cli->cl_max_mds_{easize,cookiesize} updated by mdc_init_ea_size() */
-	cli->cl_max_mds_easize = sizeof(struct lov_mds_md_v3);
-	cli->cl_max_mds_cookiesize = sizeof(struct llog_cookie);
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 3) > 0) {
-		if (!strcmp(lustre_cfg_string(lcfg, 3), "inactive")) {
-			CDEBUG(D_HA, "marking %s %s->%s as inactive\n",
-			       name, obddev->obd_name,
-			       cli->cl_target_uuid.uuid);
-			spin_lock(&imp->imp_lock);
-			imp->imp_deactive = 1;
-			spin_unlock(&imp->imp_lock);
-		}
-	}
-
-	obddev->obd_namespace = ldlm_namespace_new(obddev, obddev->obd_name,
-						   LDLM_NAMESPACE_CLIENT,
-						   LDLM_NAMESPACE_GREEDY,
-						   ns_type);
-	if (obddev->obd_namespace == NULL) {
-		CERROR("Unable to create client namespace - %s\n",
-		       obddev->obd_name);
-		rc = -ENOMEM;
-		goto err_import;
-	}
-
-	cli->cl_qchk_stat = CL_NOT_QUOTACHECKED;
-
-	return rc;
-
-err_import:
-	class_destroy_import(imp);
-err_ldlm:
-	ldlm_put_ref();
-err:
-	return rc;
-
-}
-EXPORT_SYMBOL(client_obd_setup);
-
-int client_obd_cleanup(struct obd_device *obddev)
-{
-	ldlm_namespace_free_post(obddev->obd_namespace);
-	obddev->obd_namespace = NULL;
-
-	LASSERT(obddev->u.cli.cl_import == NULL);
-
-	ldlm_put_ref();
-	return 0;
-}
-EXPORT_SYMBOL(client_obd_cleanup);
-
-/* ->o_connect() method for client side (OSC and MDC and MGC) */
-int client_connect_import(const struct lu_env *env,
-			  struct obd_export **exp,
-			  struct obd_device *obd, struct obd_uuid *cluuid,
-			  struct obd_connect_data *data, void *localdata)
-{
-	struct client_obd       *cli    = &obd->u.cli;
-	struct obd_import       *imp    = cli->cl_import;
-	struct obd_connect_data *ocd;
-	struct lustre_handle    conn    = { 0 };
-	int		     rc;
-
-	*exp = NULL;
-	down_write(&cli->cl_sem);
-	if (cli->cl_conn_count > 0) {
-		rc = -EALREADY;
-		goto out_sem;
-	}
-
-	rc = class_connect(&conn, obd, cluuid);
-	if (rc)
-		goto out_sem;
-
-	cli->cl_conn_count++;
-	*exp = class_conn2export(&conn);
-
-	LASSERT(obd->obd_namespace);
-
-	imp->imp_dlm_handle = conn;
-	rc = ptlrpc_init_import(imp);
-	if (rc != 0)
-		goto out_ldlm;
-
-	ocd = &imp->imp_connect_data;
-	if (data) {
-		*ocd = *data;
-		imp->imp_connect_flags_orig = data->ocd_connect_flags;
-	}
-
-	rc = ptlrpc_connect_import(imp);
-	if (rc != 0) {
-		LASSERT(imp->imp_state == LUSTRE_IMP_DISCON);
-		goto out_ldlm;
-	}
-	LASSERT(*exp != NULL && (*exp)->exp_connection);
-
-	if (data) {
-		LASSERTF((ocd->ocd_connect_flags & data->ocd_connect_flags) ==
-			 ocd->ocd_connect_flags, "old %#llx, new %#llx\n",
-			 data->ocd_connect_flags, ocd->ocd_connect_flags);
-		data->ocd_connect_flags = ocd->ocd_connect_flags;
-	}
-
-	ptlrpc_pinger_add_import(imp);
-
-	if (rc) {
-out_ldlm:
-		cli->cl_conn_count--;
-		class_disconnect(*exp);
-		*exp = NULL;
-	}
-out_sem:
-	up_write(&cli->cl_sem);
-
-	return rc;
-}
-EXPORT_SYMBOL(client_connect_import);
-
-int client_disconnect_export(struct obd_export *exp)
-{
-	struct obd_device *obd = class_exp2obd(exp);
-	struct client_obd *cli;
-	struct obd_import *imp;
-	int rc = 0, err;
-
-	if (!obd) {
-		CERROR("invalid export for disconnect: exp %p cookie %#llx\n",
-		       exp, exp ? exp->exp_handle.h_cookie : -1);
-		return -EINVAL;
-	}
-
-	cli = &obd->u.cli;
-	imp = cli->cl_import;
-
-	down_write(&cli->cl_sem);
-	CDEBUG(D_INFO, "disconnect %s - %d\n", obd->obd_name,
-	       cli->cl_conn_count);
-
-	if (!cli->cl_conn_count) {
-		CERROR("disconnecting disconnected device (%s)\n",
-		       obd->obd_name);
-		rc = -EINVAL;
-		goto out_disconnect;
-	}
-
-	cli->cl_conn_count--;
-	if (cli->cl_conn_count) {
-		rc = 0;
-		goto out_disconnect;
-	}
-
-	/* Mark import deactivated now, so we don't try to reconnect if any
-	 * of the cleanup RPCs fails (e.g. LDLM cancel, etc).  We don't
-	 * fully deactivate the import, or that would drop all requests. */
-	spin_lock(&imp->imp_lock);
-	imp->imp_deactive = 1;
-	spin_unlock(&imp->imp_lock);
-
-	/* Some non-replayable imports (MDS's OSCs) are pinged, so just
-	 * delete it regardless.  (It's safe to delete an import that was
-	 * never added.) */
-	(void)ptlrpc_pinger_del_import(imp);
-
-	if (obd->obd_namespace != NULL) {
-		/* obd_force == local only */
-		ldlm_cli_cancel_unused(obd->obd_namespace, NULL,
-				       obd->obd_force ? LCF_LOCAL : 0, NULL);
-		ldlm_namespace_free_prior(obd->obd_namespace, imp,
-					  obd->obd_force);
-	}
-
-	/* There's no need to hold sem while disconnecting an import,
-	 * and it may actually cause deadlock in GSS. */
-	up_write(&cli->cl_sem);
-	rc = ptlrpc_disconnect_import(imp, 0);
-	down_write(&cli->cl_sem);
-
-	ptlrpc_invalidate_import(imp);
-
-out_disconnect:
-	/* Use server style - class_disconnect should be always called for
-	 * o_disconnect. */
-	err = class_disconnect(exp);
-	if (!rc && err)
-		rc = err;
-
-	up_write(&cli->cl_sem);
-
-	return rc;
-}
-EXPORT_SYMBOL(client_disconnect_export);
-
-
-/**
- * Packs current SLV and Limit into \a req.
- */
-int target_pack_pool_reply(struct ptlrpc_request *req)
-{
-	struct obd_device *obd;
-
-	/* Check that we still have all structures alive as this may
-	 * be some late RPC at shutdown time. */
-	if (unlikely(!req->rq_export || !req->rq_export->exp_obd ||
-		     !exp_connect_lru_resize(req->rq_export))) {
-		lustre_msg_set_slv(req->rq_repmsg, 0);
-		lustre_msg_set_limit(req->rq_repmsg, 0);
-		return 0;
-	}
-
-	/* OBD is alive here as export is alive, which we checked above. */
-	obd = req->rq_export->exp_obd;
-
-	read_lock(&obd->obd_pool_lock);
-	lustre_msg_set_slv(req->rq_repmsg, obd->obd_pool_slv);
-	lustre_msg_set_limit(req->rq_repmsg, obd->obd_pool_limit);
-	read_unlock(&obd->obd_pool_lock);
-
-	return 0;
-}
-EXPORT_SYMBOL(target_pack_pool_reply);
-
-static int
-target_send_reply_msg(struct ptlrpc_request *req, int rc, int fail_id)
-{
-	if (OBD_FAIL_CHECK_ORSET(fail_id & ~OBD_FAIL_ONCE, OBD_FAIL_ONCE)) {
-		DEBUG_REQ(D_ERROR, req, "dropping reply");
-		return -ECOMM;
-	}
-
-	if (unlikely(rc)) {
-		DEBUG_REQ(D_NET, req, "processing error (%d)", rc);
-		req->rq_status = rc;
-		return ptlrpc_send_error(req, 1);
-	}
-
-	DEBUG_REQ(D_NET, req, "sending reply");
-	return ptlrpc_send_reply(req, PTLRPC_REPLY_MAYBE_DIFFICULT);
-}
-
-void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id)
-{
-	struct ptlrpc_service_part *svcpt;
-	int			netrc;
-	struct ptlrpc_reply_state *rs;
-	struct obd_export	 *exp;
-
-	if (req->rq_no_reply)
-		return;
-
-	svcpt = req->rq_rqbd->rqbd_svcpt;
-	rs = req->rq_reply_state;
-	if (rs == NULL || !rs->rs_difficult) {
-		/* no notifiers */
-		target_send_reply_msg(req, rc, fail_id);
-		return;
-	}
-
-	/* must be an export if locks saved */
-	LASSERT(req->rq_export != NULL);
-	/* req/reply consistent */
-	LASSERT(rs->rs_svcpt == svcpt);
-
-	/* "fresh" reply */
-	LASSERT(!rs->rs_scheduled);
-	LASSERT(!rs->rs_scheduled_ever);
-	LASSERT(!rs->rs_handled);
-	LASSERT(!rs->rs_on_net);
-	LASSERT(rs->rs_export == NULL);
-	LASSERT(list_empty(&rs->rs_obd_list));
-	LASSERT(list_empty(&rs->rs_exp_list));
-
-	exp = class_export_get(req->rq_export);
-
-	/* disable reply scheduling while I'm setting up */
-	rs->rs_scheduled = 1;
-	rs->rs_on_net    = 1;
-	rs->rs_xid       = req->rq_xid;
-	rs->rs_transno   = req->rq_transno;
-	rs->rs_export    = exp;
-	rs->rs_opc       = lustre_msg_get_opc(req->rq_reqmsg);
-
-	spin_lock(&exp->exp_uncommitted_replies_lock);
-	CDEBUG(D_NET, "rs transno = %llu, last committed = %llu\n",
-	       rs->rs_transno, exp->exp_last_committed);
-	if (rs->rs_transno > exp->exp_last_committed) {
-		/* not committed already */
-		list_add_tail(&rs->rs_obd_list,
-				  &exp->exp_uncommitted_replies);
-	}
-	spin_unlock(&exp->exp_uncommitted_replies_lock);
-
-	spin_lock(&exp->exp_lock);
-	list_add_tail(&rs->rs_exp_list, &exp->exp_outstanding_replies);
-	spin_unlock(&exp->exp_lock);
-
-	netrc = target_send_reply_msg(req, rc, fail_id);
-
-	spin_lock(&svcpt->scp_rep_lock);
-
-	atomic_inc(&svcpt->scp_nreps_difficult);
-
-	if (netrc != 0) {
-		/* error sending: reply is off the net.  Also we need +1
-		 * reply ref until ptlrpc_handle_rs() is done
-		 * with the reply state (if the send was successful, there
-		 * would have been +1 ref for the net, which
-		 * reply_out_callback leaves alone) */
-		rs->rs_on_net = 0;
-		ptlrpc_rs_addref(rs);
-	}
-
-	spin_lock(&rs->rs_lock);
-	if (rs->rs_transno <= exp->exp_last_committed ||
-	    (!rs->rs_on_net && !rs->rs_no_ack) ||
-	    list_empty(&rs->rs_exp_list) ||     /* completed already */
-	    list_empty(&rs->rs_obd_list)) {
-		CDEBUG(D_HA, "Schedule reply immediately\n");
-		ptlrpc_dispatch_difficult_reply(rs);
-	} else {
-		list_add(&rs->rs_list, &svcpt->scp_rep_active);
-		rs->rs_scheduled = 0;	/* allow notifier to schedule */
-	}
-	spin_unlock(&rs->rs_lock);
-	spin_unlock(&svcpt->scp_rep_lock);
-}
-EXPORT_SYMBOL(target_send_reply);
-
-ldlm_mode_t lck_compat_array[] = {
-	[LCK_EX]	= LCK_COMPAT_EX,
-	[LCK_PW]	= LCK_COMPAT_PW,
-	[LCK_PR]	= LCK_COMPAT_PR,
-	[LCK_CW]	= LCK_COMPAT_CW,
-	[LCK_CR]	= LCK_COMPAT_CR,
-	[LCK_NL]	= LCK_COMPAT_NL,
-	[LCK_GROUP]	= LCK_COMPAT_GROUP,
-	[LCK_COS]	= LCK_COMPAT_COS,
-};
-
-/**
- * Rather arbitrary mapping from LDLM error codes to errno values. This should
- * not escape to the user level.
- */
-int ldlm_error2errno(ldlm_error_t error)
-{
-	int result;
-
-	switch (error) {
-	case ELDLM_OK:
-		result = 0;
-		break;
-	case ELDLM_LOCK_CHANGED:
-		result = -ESTALE;
-		break;
-	case ELDLM_LOCK_ABORTED:
-		result = -ENAVAIL;
-		break;
-	case ELDLM_LOCK_REPLACED:
-		result = -ESRCH;
-		break;
-	case ELDLM_NO_LOCK_DATA:
-		result = -ENOENT;
-		break;
-	case ELDLM_NAMESPACE_EXISTS:
-		result = -EEXIST;
-		break;
-	case ELDLM_BAD_NAMESPACE:
-		result = -EBADF;
-		break;
-	default:
-		if (((int)error) < 0)  /* cast to signed type */
-			result = error; /* as ldlm_error_t can be unsigned */
-		else {
-			CERROR("Invalid DLM result code: %d\n", error);
-			result = -EPROTO;
-		}
-	}
-	return result;
-}
-EXPORT_SYMBOL(ldlm_error2errno);
-
-/**
- * Dual to ldlm_error2errno(): maps errno values back to ldlm_error_t.
- */
-ldlm_error_t ldlm_errno2error(int err_no)
-{
-	int error;
-
-	switch (err_no) {
-	case 0:
-		error = ELDLM_OK;
-		break;
-	case -ESTALE:
-		error = ELDLM_LOCK_CHANGED;
-		break;
-	case -ENAVAIL:
-		error = ELDLM_LOCK_ABORTED;
-		break;
-	case -ESRCH:
-		error = ELDLM_LOCK_REPLACED;
-		break;
-	case -ENOENT:
-		error = ELDLM_NO_LOCK_DATA;
-		break;
-	case -EEXIST:
-		error = ELDLM_NAMESPACE_EXISTS;
-		break;
-	case -EBADF:
-		error = ELDLM_BAD_NAMESPACE;
-		break;
-	default:
-		error = err_no;
-	}
-	return error;
-}
-EXPORT_SYMBOL(ldlm_errno2error);
-
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-void ldlm_dump_export_locks(struct obd_export *exp)
-{
-	spin_lock(&exp->exp_locks_list_guard);
-	if (!list_empty(&exp->exp_locks_list)) {
-		struct ldlm_lock *lock;
-
-		CERROR("dumping locks for export %p,ignore if the unmount doesn't hang\n",
-		       exp);
-		list_for_each_entry(lock, &exp->exp_locks_list,
-					l_exp_refs_link)
-			LDLM_ERROR(lock, "lock:");
-	}
-	spin_unlock(&exp->exp_locks_list_guard);
-}
-#endif
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
deleted file mode 100644
index cd340fc8ceab..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ /dev/null
@@ -1,2322 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/ldlm_lock.c
- *
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/lustre_intent.h"
-#include "../include/obd_class.h"
-#include "ldlm_internal.h"
-
-/* lock types */
-char *ldlm_lockname[] = {
-	[0]		= "--",
-	[LCK_EX]	= "EX",
-	[LCK_PW]	= "PW",
-	[LCK_PR]	= "PR",
-	[LCK_CW]	= "CW",
-	[LCK_CR]	= "CR",
-	[LCK_NL]	= "NL",
-	[LCK_GROUP]	= "GROUP",
-	[LCK_COS]	= "COS",
-};
-EXPORT_SYMBOL(ldlm_lockname);
-
-char *ldlm_typename[] = {
-	[LDLM_PLAIN]	= "PLN",
-	[LDLM_EXTENT]	= "EXT",
-	[LDLM_FLOCK]	= "FLK",
-	[LDLM_IBITS]	= "IBT",
-};
-EXPORT_SYMBOL(ldlm_typename);
-
-static ldlm_policy_wire_to_local_t ldlm_policy_wire18_to_local[] = {
-	[LDLM_PLAIN - LDLM_MIN_TYPE]	= ldlm_plain_policy_wire_to_local,
-	[LDLM_EXTENT - LDLM_MIN_TYPE]	= ldlm_extent_policy_wire_to_local,
-	[LDLM_FLOCK - LDLM_MIN_TYPE]	= ldlm_flock_policy_wire18_to_local,
-	[LDLM_IBITS - LDLM_MIN_TYPE]	= ldlm_ibits_policy_wire_to_local,
-};
-
-static ldlm_policy_wire_to_local_t ldlm_policy_wire21_to_local[] = {
-	[LDLM_PLAIN - LDLM_MIN_TYPE]	= ldlm_plain_policy_wire_to_local,
-	[LDLM_EXTENT - LDLM_MIN_TYPE]	= ldlm_extent_policy_wire_to_local,
-	[LDLM_FLOCK - LDLM_MIN_TYPE]	= ldlm_flock_policy_wire21_to_local,
-	[LDLM_IBITS - LDLM_MIN_TYPE]	= ldlm_ibits_policy_wire_to_local,
-};
-
-static ldlm_policy_local_to_wire_t ldlm_policy_local_to_wire[] = {
-	[LDLM_PLAIN - LDLM_MIN_TYPE]	= ldlm_plain_policy_local_to_wire,
-	[LDLM_EXTENT - LDLM_MIN_TYPE]	= ldlm_extent_policy_local_to_wire,
-	[LDLM_FLOCK - LDLM_MIN_TYPE]	= ldlm_flock_policy_local_to_wire,
-	[LDLM_IBITS - LDLM_MIN_TYPE]	= ldlm_ibits_policy_local_to_wire,
-};
-
-/**
- * Converts lock policy from local format to on the wire lock_desc format
- */
-void ldlm_convert_policy_to_wire(ldlm_type_t type,
-				 const ldlm_policy_data_t *lpolicy,
-				 ldlm_wire_policy_data_t *wpolicy)
-{
-	ldlm_policy_local_to_wire_t convert;
-
-	convert = ldlm_policy_local_to_wire[type - LDLM_MIN_TYPE];
-
-	convert(lpolicy, wpolicy);
-}
-
-/**
- * Converts lock policy from on the wire lock_desc format to local format
- */
-void ldlm_convert_policy_to_local(struct obd_export *exp, ldlm_type_t type,
-				  const ldlm_wire_policy_data_t *wpolicy,
-				  ldlm_policy_data_t *lpolicy)
-{
-	ldlm_policy_wire_to_local_t convert;
-	int new_client;
-
-	/** some badness for 2.0.0 clients, but 2.0.0 isn't supported */
-	new_client = (exp_connect_flags(exp) & OBD_CONNECT_FULL20) != 0;
-	if (new_client)
-		convert = ldlm_policy_wire21_to_local[type - LDLM_MIN_TYPE];
-	else
-		convert = ldlm_policy_wire18_to_local[type - LDLM_MIN_TYPE];
-
-	convert(wpolicy, lpolicy);
-}
-
-char *ldlm_it2str(int it)
-{
-	switch (it) {
-	case IT_OPEN:
-		return "open";
-	case IT_CREAT:
-		return "creat";
-	case (IT_OPEN | IT_CREAT):
-		return "open|creat";
-	case IT_READDIR:
-		return "readdir";
-	case IT_GETATTR:
-		return "getattr";
-	case IT_LOOKUP:
-		return "lookup";
-	case IT_UNLINK:
-		return "unlink";
-	case IT_GETXATTR:
-		return "getxattr";
-	case IT_LAYOUT:
-		return "layout";
-	default:
-		CERROR("Unknown intent %d\n", it);
-		return "UNKNOWN";
-	}
-}
-EXPORT_SYMBOL(ldlm_it2str);
-
-
-void ldlm_register_intent(struct ldlm_namespace *ns, ldlm_res_policy arg)
-{
-	ns->ns_policy = arg;
-}
-EXPORT_SYMBOL(ldlm_register_intent);
-
-/*
- * REFCOUNTED LOCK OBJECTS
- */
-
-
-/**
- * Get a reference on a lock.
- *
- * Lock refcounts, during creation:
- *   - one special one for allocation, dec'd only once in destroy
- *   - one for being a lock that's in-use
- *   - one for the addref associated with a new lock
- */
-struct ldlm_lock *ldlm_lock_get(struct ldlm_lock *lock)
-{
-	atomic_inc(&lock->l_refc);
-	return lock;
-}
-EXPORT_SYMBOL(ldlm_lock_get);
-
-/**
- * Release lock reference.
- *
- * Also frees the lock if it was last reference.
- */
-void ldlm_lock_put(struct ldlm_lock *lock)
-{
-	LASSERT(lock->l_resource != LP_POISON);
-	LASSERT(atomic_read(&lock->l_refc) > 0);
-	if (atomic_dec_and_test(&lock->l_refc)) {
-		struct ldlm_resource *res;
-
-		LDLM_DEBUG(lock,
-			   "final lock_put on destroyed lock, freeing it.");
-
-		res = lock->l_resource;
-		LASSERT(lock->l_flags & LDLM_FL_DESTROYED);
-		LASSERT(list_empty(&lock->l_res_link));
-		LASSERT(list_empty(&lock->l_pending_chain));
-
-		lprocfs_counter_decr(ldlm_res_to_ns(res)->ns_stats,
-				     LDLM_NSS_LOCKS);
-		lu_ref_del(&res->lr_reference, "lock", lock);
-		ldlm_resource_putref(res);
-		lock->l_resource = NULL;
-		if (lock->l_export) {
-			class_export_lock_put(lock->l_export, lock);
-			lock->l_export = NULL;
-		}
-
-		kfree(lock->l_lvb_data);
-
-		ldlm_interval_free(ldlm_interval_detach(lock));
-		lu_ref_fini(&lock->l_reference);
-		OBD_FREE_RCU(lock, sizeof(*lock), &lock->l_handle);
-	}
-}
-EXPORT_SYMBOL(ldlm_lock_put);
-
-/**
- * Removes LDLM lock \a lock from LRU. Assumes LRU is already locked.
- */
-int ldlm_lock_remove_from_lru_nolock(struct ldlm_lock *lock)
-{
-	int rc = 0;
-
-	if (!list_empty(&lock->l_lru)) {
-		struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-
-		LASSERT(lock->l_resource->lr_type != LDLM_FLOCK);
-		list_del_init(&lock->l_lru);
-		LASSERT(ns->ns_nr_unused > 0);
-		ns->ns_nr_unused--;
-		rc = 1;
-	}
-	return rc;
-}
-
-/**
- * Removes LDLM lock \a lock from LRU. Obtains the LRU lock first.
- */
-int ldlm_lock_remove_from_lru(struct ldlm_lock *lock)
-{
-	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-	int rc;
-
-	if (lock->l_flags & LDLM_FL_NS_SRV) {
-		LASSERT(list_empty(&lock->l_lru));
-		return 0;
-	}
-
-	spin_lock(&ns->ns_lock);
-	rc = ldlm_lock_remove_from_lru_nolock(lock);
-	spin_unlock(&ns->ns_lock);
-	return rc;
-}
-
-/**
- * Adds LDLM lock \a lock to namespace LRU. Assumes LRU is already locked.
- */
-void ldlm_lock_add_to_lru_nolock(struct ldlm_lock *lock)
-{
-	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-
-	lock->l_last_used = cfs_time_current();
-	LASSERT(list_empty(&lock->l_lru));
-	LASSERT(lock->l_resource->lr_type != LDLM_FLOCK);
-	list_add_tail(&lock->l_lru, &ns->ns_unused_list);
-	if (lock->l_flags & LDLM_FL_SKIPPED)
-		lock->l_flags &= ~LDLM_FL_SKIPPED;
-	LASSERT(ns->ns_nr_unused >= 0);
-	ns->ns_nr_unused++;
-}
-
-/**
- * Adds LDLM lock \a lock to namespace LRU. Obtains necessary LRU locks
- * first.
- */
-void ldlm_lock_add_to_lru(struct ldlm_lock *lock)
-{
-	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-
-	spin_lock(&ns->ns_lock);
-	ldlm_lock_add_to_lru_nolock(lock);
-	spin_unlock(&ns->ns_lock);
-}
-
-/**
- * Moves LDLM lock \a lock that is already in namespace LRU to the tail of
- * the LRU. Performs necessary LRU locking
- */
-void ldlm_lock_touch_in_lru(struct ldlm_lock *lock)
-{
-	struct ldlm_namespace *ns = ldlm_lock_to_ns(lock);
-
-	if (lock->l_flags & LDLM_FL_NS_SRV) {
-		LASSERT(list_empty(&lock->l_lru));
-		return;
-	}
-
-	spin_lock(&ns->ns_lock);
-	if (!list_empty(&lock->l_lru)) {
-		ldlm_lock_remove_from_lru_nolock(lock);
-		ldlm_lock_add_to_lru_nolock(lock);
-	}
-	spin_unlock(&ns->ns_lock);
-}
-
-/**
- * Helper to destroy a locked lock.
- *
- * Used by ldlm_lock_destroy and ldlm_lock_destroy_nolock
- * Must be called with l_lock and lr_lock held.
- *
- * Does not actually free the lock data, but rather marks the lock as
- * destroyed by setting l_destroyed field in the lock to 1.  Destroys a
- * handle->lock association too, so that the lock can no longer be found
- * and removes the lock from LRU list.  Actual lock freeing occurs when
- * last lock reference goes away.
- *
- * Original comment (of some historical value):
- * This used to have a 'strict' flag, which recovery would use to mark an
- * in-use lock as needing-to-die.  Lest I am ever tempted to put it back, I
- * shall explain why it's gone: with the new hash table scheme, once you call
- * ldlm_lock_destroy, you can never drop your final references on this lock.
- * Because it's not in the hash table anymore.  -phil
- */
-int ldlm_lock_destroy_internal(struct ldlm_lock *lock)
-{
-	if (lock->l_readers || lock->l_writers) {
-		LDLM_ERROR(lock, "lock still has references");
-		LBUG();
-	}
-
-	if (!list_empty(&lock->l_res_link)) {
-		LDLM_ERROR(lock, "lock still on resource");
-		LBUG();
-	}
-
-	if (lock->l_flags & LDLM_FL_DESTROYED) {
-		LASSERT(list_empty(&lock->l_lru));
-		return 0;
-	}
-	lock->l_flags |= LDLM_FL_DESTROYED;
-
-	if (lock->l_export && lock->l_export->exp_lock_hash) {
-		/* NB: it's safe to call cfs_hash_del() even lock isn't
-		 * in exp_lock_hash. */
-		/* In the function below, .hs_keycmp resolves to
-		 * ldlm_export_lock_keycmp() */
-		/* coverity[overrun-buffer-val] */
-		cfs_hash_del(lock->l_export->exp_lock_hash,
-			     &lock->l_remote_handle, &lock->l_exp_hash);
-	}
-
-	ldlm_lock_remove_from_lru(lock);
-	class_handle_unhash(&lock->l_handle);
-
-#if 0
-	/* Wake anyone waiting for this lock */
-	/* FIXME: I should probably add yet another flag, instead of using
-	 * l_export to only call this on clients */
-	if (lock->l_export)
-		class_export_put(lock->l_export);
-	lock->l_export = NULL;
-	if (lock->l_export && lock->l_completion_ast)
-		lock->l_completion_ast(lock, 0);
-#endif
-	return 1;
-}
-
-/**
- * Destroys a LDLM lock \a lock. Performs necessary locking first.
- */
-void ldlm_lock_destroy(struct ldlm_lock *lock)
-{
-	int first;
-
-	lock_res_and_lock(lock);
-	first = ldlm_lock_destroy_internal(lock);
-	unlock_res_and_lock(lock);
-
-	/* drop reference from hashtable only for first destroy */
-	if (first) {
-		lu_ref_del(&lock->l_reference, "hash", lock);
-		LDLM_LOCK_RELEASE(lock);
-	}
-}
-
-/**
- * Destroys a LDLM lock \a lock that is already locked.
- */
-void ldlm_lock_destroy_nolock(struct ldlm_lock *lock)
-{
-	int first;
-
-	first = ldlm_lock_destroy_internal(lock);
-	/* drop reference from hashtable only for first destroy */
-	if (first) {
-		lu_ref_del(&lock->l_reference, "hash", lock);
-		LDLM_LOCK_RELEASE(lock);
-	}
-}
-
-/* this is called by portals_handle2object with the handle lock taken */
-static void lock_handle_addref(void *lock)
-{
-	LDLM_LOCK_GET((struct ldlm_lock *)lock);
-}
-
-static void lock_handle_free(void *lock, int size)
-{
-	LASSERT(size == sizeof(struct ldlm_lock));
-	OBD_SLAB_FREE(lock, ldlm_lock_slab, size);
-}
-
-struct portals_handle_ops lock_handle_ops = {
-	.hop_addref = lock_handle_addref,
-	.hop_free   = lock_handle_free,
-};
-
-/**
- *
- * Allocate and initialize new lock structure.
- *
- * usage: pass in a resource on which you have done ldlm_resource_get
- *	new lock will take over the refcount.
- * returns: lock with refcount 2 - one for current caller and one for remote
- */
-static struct ldlm_lock *ldlm_lock_new(struct ldlm_resource *resource)
-{
-	struct ldlm_lock *lock;
-
-	if (resource == NULL)
-		LBUG();
-
-	OBD_SLAB_ALLOC_PTR_GFP(lock, ldlm_lock_slab, GFP_NOFS);
-	if (lock == NULL)
-		return NULL;
-
-	spin_lock_init(&lock->l_lock);
-	lock->l_resource = resource;
-	lu_ref_add(&resource->lr_reference, "lock", lock);
-
-	atomic_set(&lock->l_refc, 2);
-	INIT_LIST_HEAD(&lock->l_res_link);
-	INIT_LIST_HEAD(&lock->l_lru);
-	INIT_LIST_HEAD(&lock->l_pending_chain);
-	INIT_LIST_HEAD(&lock->l_bl_ast);
-	INIT_LIST_HEAD(&lock->l_cp_ast);
-	INIT_LIST_HEAD(&lock->l_rk_ast);
-	init_waitqueue_head(&lock->l_waitq);
-	lock->l_blocking_lock = NULL;
-	INIT_LIST_HEAD(&lock->l_sl_mode);
-	INIT_LIST_HEAD(&lock->l_sl_policy);
-	INIT_HLIST_NODE(&lock->l_exp_hash);
-	INIT_HLIST_NODE(&lock->l_exp_flock_hash);
-
-	lprocfs_counter_incr(ldlm_res_to_ns(resource)->ns_stats,
-			     LDLM_NSS_LOCKS);
-	INIT_LIST_HEAD(&lock->l_handle.h_link);
-	class_handle_hash(&lock->l_handle, &lock_handle_ops);
-
-	lu_ref_init(&lock->l_reference);
-	lu_ref_add(&lock->l_reference, "hash", lock);
-	lock->l_callback_timeout = 0;
-
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-	INIT_LIST_HEAD(&lock->l_exp_refs_link);
-	lock->l_exp_refs_nr = 0;
-	lock->l_exp_refs_target = NULL;
-#endif
-	INIT_LIST_HEAD(&lock->l_exp_list);
-
-	return lock;
-}
-
-/**
- * Moves LDLM lock \a lock to another resource.
- * This is used on client when server returns some other lock than requested
- * (typically as a result of intent operation)
- */
-int ldlm_lock_change_resource(struct ldlm_namespace *ns, struct ldlm_lock *lock,
-			      const struct ldlm_res_id *new_resid)
-{
-	struct ldlm_resource *oldres = lock->l_resource;
-	struct ldlm_resource *newres;
-	int type;
-
-	LASSERT(ns_is_client(ns));
-
-	lock_res_and_lock(lock);
-	if (memcmp(new_resid, &lock->l_resource->lr_name,
-		   sizeof(lock->l_resource->lr_name)) == 0) {
-		/* Nothing to do */
-		unlock_res_and_lock(lock);
-		return 0;
-	}
-
-	LASSERT(new_resid->name[0] != 0);
-
-	/* This function assumes that the lock isn't on any lists */
-	LASSERT(list_empty(&lock->l_res_link));
-
-	type = oldres->lr_type;
-	unlock_res_and_lock(lock);
-
-	newres = ldlm_resource_get(ns, NULL, new_resid, type, 1);
-	if (newres == NULL)
-		return -ENOMEM;
-
-	lu_ref_add(&newres->lr_reference, "lock", lock);
-	/*
-	 * To flip the lock from the old to the new resource, lock, oldres and
-	 * newres have to be locked. Resource spin-locks are nested within
-	 * lock->l_lock, and are taken in the memory address order to avoid
-	 * dead-locks.
-	 */
-	spin_lock(&lock->l_lock);
-	oldres = lock->l_resource;
-	if (oldres < newres) {
-		lock_res(oldres);
-		lock_res_nested(newres, LRT_NEW);
-	} else {
-		lock_res(newres);
-		lock_res_nested(oldres, LRT_NEW);
-	}
-	LASSERT(memcmp(new_resid, &oldres->lr_name,
-		       sizeof(oldres->lr_name)) != 0);
-	lock->l_resource = newres;
-	unlock_res(oldres);
-	unlock_res_and_lock(lock);
-
-	/* ...and the flowers are still standing! */
-	lu_ref_del(&oldres->lr_reference, "lock", lock);
-	ldlm_resource_putref(oldres);
-
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_lock_change_resource);
-
-/** \defgroup ldlm_handles LDLM HANDLES
- * Ways to get hold of locks without any addresses.
- * @{
- */
-
-/**
- * Fills in handle for LDLM lock \a lock into supplied \a lockh
- * Does not take any references.
- */
-void ldlm_lock2handle(const struct ldlm_lock *lock, struct lustre_handle *lockh)
-{
-	lockh->cookie = lock->l_handle.h_cookie;
-}
-EXPORT_SYMBOL(ldlm_lock2handle);
-
-/**
- * Obtain a lock reference by handle.
- *
- * if \a flags: atomically get the lock and set the flags.
- *	      Return NULL if flag already set
- */
-struct ldlm_lock *__ldlm_handle2lock(const struct lustre_handle *handle,
-				     __u64 flags)
-{
-	struct ldlm_lock *lock;
-
-	LASSERT(handle);
-
-	lock = class_handle2object(handle->cookie);
-	if (lock == NULL)
-		return NULL;
-
-	/* It's unlikely but possible that someone marked the lock as
-	 * destroyed after we did handle2object on it */
-	if (flags == 0 && ((lock->l_flags & LDLM_FL_DESTROYED) == 0)) {
-		lu_ref_add(&lock->l_reference, "handle", current);
-		return lock;
-	}
-
-	lock_res_and_lock(lock);
-
-	LASSERT(lock->l_resource != NULL);
-
-	lu_ref_add_atomic(&lock->l_reference, "handle", current);
-	if (unlikely(lock->l_flags & LDLM_FL_DESTROYED)) {
-		unlock_res_and_lock(lock);
-		CDEBUG(D_INFO, "lock already destroyed: lock %p\n", lock);
-		LDLM_LOCK_PUT(lock);
-		return NULL;
-	}
-
-	if (flags && (lock->l_flags & flags)) {
-		unlock_res_and_lock(lock);
-		LDLM_LOCK_PUT(lock);
-		return NULL;
-	}
-
-	if (flags)
-		lock->l_flags |= flags;
-
-	unlock_res_and_lock(lock);
-	return lock;
-}
-EXPORT_SYMBOL(__ldlm_handle2lock);
-/** @} ldlm_handles */
-
-/**
- * Fill in "on the wire" representation for given LDLM lock into supplied
- * lock descriptor \a desc structure.
- */
-void ldlm_lock2desc(struct ldlm_lock *lock, struct ldlm_lock_desc *desc)
-{
-	ldlm_res2desc(lock->l_resource, &desc->l_resource);
-	desc->l_req_mode = lock->l_req_mode;
-	desc->l_granted_mode = lock->l_granted_mode;
-	ldlm_convert_policy_to_wire(lock->l_resource->lr_type,
-				    &lock->l_policy_data,
-				    &desc->l_policy_data);
-}
-EXPORT_SYMBOL(ldlm_lock2desc);
-
-/**
- * Add a lock to list of conflicting locks to send AST to.
- *
- * Only add if we have not sent a blocking AST to the lock yet.
- */
-void ldlm_add_bl_work_item(struct ldlm_lock *lock, struct ldlm_lock *new,
-			   struct list_head *work_list)
-{
-	if ((lock->l_flags & LDLM_FL_AST_SENT) == 0) {
-		LDLM_DEBUG(lock, "lock incompatible; sending blocking AST.");
-		lock->l_flags |= LDLM_FL_AST_SENT;
-		/* If the enqueuing client said so, tell the AST recipient to
-		 * discard dirty data, rather than writing back. */
-		if (new->l_flags & LDLM_FL_AST_DISCARD_DATA)
-			lock->l_flags |= LDLM_FL_DISCARD_DATA;
-		LASSERT(list_empty(&lock->l_bl_ast));
-		list_add(&lock->l_bl_ast, work_list);
-		LDLM_LOCK_GET(lock);
-		LASSERT(lock->l_blocking_lock == NULL);
-		lock->l_blocking_lock = LDLM_LOCK_GET(new);
-	}
-}
-
-/**
- * Add a lock to list of just granted locks to send completion AST to.
- */
-void ldlm_add_cp_work_item(struct ldlm_lock *lock, struct list_head *work_list)
-{
-	if ((lock->l_flags & LDLM_FL_CP_REQD) == 0) {
-		lock->l_flags |= LDLM_FL_CP_REQD;
-		LDLM_DEBUG(lock, "lock granted; sending completion AST.");
-		LASSERT(list_empty(&lock->l_cp_ast));
-		list_add(&lock->l_cp_ast, work_list);
-		LDLM_LOCK_GET(lock);
-	}
-}
-
-/**
- * Aggregator function to add AST work items into a list. Determines
- * what sort of an AST work needs to be done and calls the proper
- * adding function.
- * Must be called with lr_lock held.
- */
-void ldlm_add_ast_work_item(struct ldlm_lock *lock, struct ldlm_lock *new,
-			    struct list_head *work_list)
-{
-	check_res_locked(lock->l_resource);
-	if (new)
-		ldlm_add_bl_work_item(lock, new, work_list);
-	else
-		ldlm_add_cp_work_item(lock, work_list);
-}
-
-/**
- * Add specified reader/writer reference to LDLM lock with handle \a lockh.
- * r/w reference type is determined by \a mode
- * Calls ldlm_lock_addref_internal.
- */
-void ldlm_lock_addref(struct lustre_handle *lockh, __u32 mode)
-{
-	struct ldlm_lock *lock;
-
-	lock = ldlm_handle2lock(lockh);
-	LASSERT(lock != NULL);
-	ldlm_lock_addref_internal(lock, mode);
-	LDLM_LOCK_PUT(lock);
-}
-EXPORT_SYMBOL(ldlm_lock_addref);
-
-/**
- * Helper function.
- * Add specified reader/writer reference to LDLM lock \a lock.
- * r/w reference type is determined by \a mode
- * Removes lock from LRU if it is there.
- * Assumes the LDLM lock is already locked.
- */
-void ldlm_lock_addref_internal_nolock(struct ldlm_lock *lock, __u32 mode)
-{
-	ldlm_lock_remove_from_lru(lock);
-	if (mode & (LCK_NL | LCK_CR | LCK_PR)) {
-		lock->l_readers++;
-		lu_ref_add_atomic(&lock->l_reference, "reader", lock);
-	}
-	if (mode & (LCK_EX | LCK_CW | LCK_PW | LCK_GROUP | LCK_COS)) {
-		lock->l_writers++;
-		lu_ref_add_atomic(&lock->l_reference, "writer", lock);
-	}
-	LDLM_LOCK_GET(lock);
-	lu_ref_add_atomic(&lock->l_reference, "user", lock);
-	LDLM_DEBUG(lock, "ldlm_lock_addref(%s)", ldlm_lockname[mode]);
-}
-
-/**
- * Attempts to add reader/writer reference to a lock with handle \a lockh, and
- * fails if lock is already LDLM_FL_CBPENDING or destroyed.
- *
- * \retval 0 success, lock was addref-ed
- *
- * \retval -EAGAIN lock is being canceled.
- */
-int ldlm_lock_addref_try(struct lustre_handle *lockh, __u32 mode)
-{
-	struct ldlm_lock *lock;
-	int	       result;
-
-	result = -EAGAIN;
-	lock = ldlm_handle2lock(lockh);
-	if (lock != NULL) {
-		lock_res_and_lock(lock);
-		if (lock->l_readers != 0 || lock->l_writers != 0 ||
-		    !(lock->l_flags & LDLM_FL_CBPENDING)) {
-			ldlm_lock_addref_internal_nolock(lock, mode);
-			result = 0;
-		}
-		unlock_res_and_lock(lock);
-		LDLM_LOCK_PUT(lock);
-	}
-	return result;
-}
-EXPORT_SYMBOL(ldlm_lock_addref_try);
-
-/**
- * Add specified reader/writer reference to LDLM lock \a lock.
- * Locks LDLM lock and calls ldlm_lock_addref_internal_nolock to do the work.
- * Only called for local locks.
- */
-void ldlm_lock_addref_internal(struct ldlm_lock *lock, __u32 mode)
-{
-	lock_res_and_lock(lock);
-	ldlm_lock_addref_internal_nolock(lock, mode);
-	unlock_res_and_lock(lock);
-}
-
-/**
- * Removes reader/writer reference for LDLM lock \a lock.
- * Assumes LDLM lock is already locked.
- * only called in ldlm_flock_destroy and for local locks.
- * Does NOT add lock to LRU if no r/w references left to accommodate flock locks
- * that cannot be placed in LRU.
- */
-void ldlm_lock_decref_internal_nolock(struct ldlm_lock *lock, __u32 mode)
-{
-	LDLM_DEBUG(lock, "ldlm_lock_decref(%s)", ldlm_lockname[mode]);
-	if (mode & (LCK_NL | LCK_CR | LCK_PR)) {
-		LASSERT(lock->l_readers > 0);
-		lu_ref_del(&lock->l_reference, "reader", lock);
-		lock->l_readers--;
-	}
-	if (mode & (LCK_EX | LCK_CW | LCK_PW | LCK_GROUP | LCK_COS)) {
-		LASSERT(lock->l_writers > 0);
-		lu_ref_del(&lock->l_reference, "writer", lock);
-		lock->l_writers--;
-	}
-
-	lu_ref_del(&lock->l_reference, "user", lock);
-	LDLM_LOCK_RELEASE(lock);    /* matches the LDLM_LOCK_GET() in addref */
-}
-
-/**
- * Removes reader/writer reference for LDLM lock \a lock.
- * Locks LDLM lock first.
- * If the lock is determined to be client lock on a client and r/w refcount
- * drops to zero and the lock is not blocked, the lock is added to LRU lock
- * on the namespace.
- * For blocked LDLM locks if r/w count drops to zero, blocking_ast is called.
- */
-void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode)
-{
-	struct ldlm_namespace *ns;
-
-	lock_res_and_lock(lock);
-
-	ns = ldlm_lock_to_ns(lock);
-
-	ldlm_lock_decref_internal_nolock(lock, mode);
-
-	if (lock->l_flags & LDLM_FL_LOCAL &&
-	    !lock->l_readers && !lock->l_writers) {
-		/* If this is a local lock on a server namespace and this was
-		 * the last reference, cancel the lock. */
-		CDEBUG(D_INFO, "forcing cancel of local lock\n");
-		lock->l_flags |= LDLM_FL_CBPENDING;
-	}
-
-	if (!lock->l_readers && !lock->l_writers &&
-	    (lock->l_flags & LDLM_FL_CBPENDING)) {
-		/* If we received a blocked AST and this was the last reference,
-		 * run the callback. */
-		if ((lock->l_flags & LDLM_FL_NS_SRV) && lock->l_export)
-			CERROR("FL_CBPENDING set on non-local lock--just a warning\n");
-
-		LDLM_DEBUG(lock, "final decref done on cbpending lock");
-
-		LDLM_LOCK_GET(lock); /* dropped by bl thread */
-		ldlm_lock_remove_from_lru(lock);
-		unlock_res_and_lock(lock);
-
-		if (lock->l_flags & LDLM_FL_FAIL_LOC)
-			OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE);
-
-		if ((lock->l_flags & LDLM_FL_ATOMIC_CB) ||
-		    ldlm_bl_to_thread_lock(ns, NULL, lock) != 0)
-			ldlm_handle_bl_callback(ns, NULL, lock);
-	} else if (ns_is_client(ns) &&
-		   !lock->l_readers && !lock->l_writers &&
-		   !(lock->l_flags & LDLM_FL_NO_LRU) &&
-		   !(lock->l_flags & LDLM_FL_BL_AST)) {
-
-		LDLM_DEBUG(lock, "add lock into lru list");
-
-		/* If this is a client-side namespace and this was the last
-		 * reference, put it on the LRU. */
-		ldlm_lock_add_to_lru(lock);
-		unlock_res_and_lock(lock);
-
-		if (lock->l_flags & LDLM_FL_FAIL_LOC)
-			OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE);
-
-		/* Call ldlm_cancel_lru() only if EARLY_CANCEL and LRU RESIZE
-		 * are not supported by the server, otherwise, it is done on
-		 * enqueue. */
-		if (!exp_connect_cancelset(lock->l_conn_export) &&
-		    !ns_connect_lru_resize(ns))
-			ldlm_cancel_lru(ns, 0, LCF_ASYNC, 0);
-	} else {
-		LDLM_DEBUG(lock, "do not add lock into lru list");
-		unlock_res_and_lock(lock);
-	}
-}
-
-/**
- * Decrease reader/writer refcount for LDLM lock with handle \a lockh
- */
-void ldlm_lock_decref(struct lustre_handle *lockh, __u32 mode)
-{
-	struct ldlm_lock *lock = __ldlm_handle2lock(lockh, 0);
-
-	LASSERTF(lock != NULL, "Non-existing lock: %#llx\n", lockh->cookie);
-	ldlm_lock_decref_internal(lock, mode);
-	LDLM_LOCK_PUT(lock);
-}
-EXPORT_SYMBOL(ldlm_lock_decref);
-
-/**
- * Decrease reader/writer refcount for LDLM lock with handle
- * \a lockh and mark it for subsequent cancellation once r/w refcount
- * drops to zero instead of putting into LRU.
- *
- * Typical usage is for GROUP locks which we cannot allow to be cached.
- */
-void ldlm_lock_decref_and_cancel(struct lustre_handle *lockh, __u32 mode)
-{
-	struct ldlm_lock *lock = __ldlm_handle2lock(lockh, 0);
-
-	LASSERT(lock != NULL);
-
-	LDLM_DEBUG(lock, "ldlm_lock_decref(%s)", ldlm_lockname[mode]);
-	lock_res_and_lock(lock);
-	lock->l_flags |= LDLM_FL_CBPENDING;
-	unlock_res_and_lock(lock);
-	ldlm_lock_decref_internal(lock, mode);
-	LDLM_LOCK_PUT(lock);
-}
-EXPORT_SYMBOL(ldlm_lock_decref_and_cancel);
-
-struct sl_insert_point {
-	struct list_head *res_link;
-	struct list_head *mode_link;
-	struct list_head *policy_link;
-};
-
-/**
- * Finds a position to insert the new lock into granted lock list.
- *
- * Used for locks eligible for skiplist optimization.
- *
- * Parameters:
- *      queue [input]:  the granted list where search acts on;
- *      req [input]:    the lock whose position to be located;
- *      prev [output]:  positions within 3 lists to insert @req to
- * Return Value:
- *      filled @prev
- * NOTE: called by
- *  - ldlm_grant_lock_with_skiplist
- */
-static void search_granted_lock(struct list_head *queue,
-				struct ldlm_lock *req,
-				struct sl_insert_point *prev)
-{
-	struct list_head *tmp;
-	struct ldlm_lock *lock, *mode_end, *policy_end;
-
-	list_for_each(tmp, queue) {
-		lock = list_entry(tmp, struct ldlm_lock, l_res_link);
-
-		mode_end = list_entry(lock->l_sl_mode.prev,
-					  struct ldlm_lock, l_sl_mode);
-
-		if (lock->l_req_mode != req->l_req_mode) {
-			/* jump to last lock of mode group */
-			tmp = &mode_end->l_res_link;
-			continue;
-		}
-
-		/* suitable mode group is found */
-		if (lock->l_resource->lr_type == LDLM_PLAIN) {
-			/* insert point is last lock of the mode group */
-			prev->res_link = &mode_end->l_res_link;
-			prev->mode_link = &mode_end->l_sl_mode;
-			prev->policy_link = &req->l_sl_policy;
-			return;
-		}
-
-		if (lock->l_resource->lr_type == LDLM_IBITS) {
-			for (;;) {
-				policy_end =
-					list_entry(lock->l_sl_policy.prev,
-						       struct ldlm_lock,
-						       l_sl_policy);
-
-				if (lock->l_policy_data.l_inodebits.bits ==
-				    req->l_policy_data.l_inodebits.bits) {
-					/* insert point is last lock of
-					 * the policy group */
-					prev->res_link =
-						&policy_end->l_res_link;
-					prev->mode_link =
-						&policy_end->l_sl_mode;
-					prev->policy_link =
-						&policy_end->l_sl_policy;
-					return;
-				}
-
-				if (policy_end == mode_end)
-					/* done with mode group */
-					break;
-
-				/* go to next policy group within mode group */
-				tmp = policy_end->l_res_link.next;
-				lock = list_entry(tmp, struct ldlm_lock,
-						      l_res_link);
-			}  /* loop over policy groups within the mode group */
-
-			/* insert point is last lock of the mode group,
-			 * new policy group is started */
-			prev->res_link = &mode_end->l_res_link;
-			prev->mode_link = &mode_end->l_sl_mode;
-			prev->policy_link = &req->l_sl_policy;
-			return;
-		}
-
-		LDLM_ERROR(lock, "is not LDLM_PLAIN or LDLM_IBITS lock");
-		LBUG();
-	}
-
-	/* insert point is last lock on the queue,
-	 * new mode group and new policy group are started */
-	prev->res_link = queue->prev;
-	prev->mode_link = &req->l_sl_mode;
-	prev->policy_link = &req->l_sl_policy;
-}
-
-/**
- * Add a lock into resource granted list after a position described by
- * \a prev.
- */
-static void ldlm_granted_list_add_lock(struct ldlm_lock *lock,
-				       struct sl_insert_point *prev)
-{
-	struct ldlm_resource *res = lock->l_resource;
-
-	check_res_locked(res);
-
-	ldlm_resource_dump(D_INFO, res);
-	LDLM_DEBUG(lock, "About to add lock:");
-
-	if (lock->l_flags & LDLM_FL_DESTROYED) {
-		CDEBUG(D_OTHER, "Lock destroyed, not adding to resource\n");
-		return;
-	}
-
-	LASSERT(list_empty(&lock->l_res_link));
-	LASSERT(list_empty(&lock->l_sl_mode));
-	LASSERT(list_empty(&lock->l_sl_policy));
-
-	/*
-	 * lock->link == prev->link means lock is first starting the group.
-	 * Don't re-add to itself to suppress kernel warnings.
-	 */
-	if (&lock->l_res_link != prev->res_link)
-		list_add(&lock->l_res_link, prev->res_link);
-	if (&lock->l_sl_mode != prev->mode_link)
-		list_add(&lock->l_sl_mode, prev->mode_link);
-	if (&lock->l_sl_policy != prev->policy_link)
-		list_add(&lock->l_sl_policy, prev->policy_link);
-}
-
-/**
- * Add a lock to granted list on a resource maintaining skiplist
- * correctness.
- */
-static void ldlm_grant_lock_with_skiplist(struct ldlm_lock *lock)
-{
-	struct sl_insert_point prev;
-
-	LASSERT(lock->l_req_mode == lock->l_granted_mode);
-
-	search_granted_lock(&lock->l_resource->lr_granted, lock, &prev);
-	ldlm_granted_list_add_lock(lock, &prev);
-}
-
-/**
- * Perform lock granting bookkeeping.
- *
- * Includes putting the lock into granted list and updating lock mode.
- * NOTE: called by
- *  - ldlm_lock_enqueue
- *  - ldlm_reprocess_queue
- *  - ldlm_lock_convert
- *
- * must be called with lr_lock held
- */
-void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list)
-{
-	struct ldlm_resource *res = lock->l_resource;
-
-	check_res_locked(res);
-
-	lock->l_granted_mode = lock->l_req_mode;
-	if (res->lr_type == LDLM_PLAIN || res->lr_type == LDLM_IBITS)
-		ldlm_grant_lock_with_skiplist(lock);
-	else if (res->lr_type == LDLM_EXTENT)
-		ldlm_extent_add_lock(res, lock);
-	else
-		ldlm_resource_add_lock(res, &res->lr_granted, lock);
-
-	if (lock->l_granted_mode < res->lr_most_restr)
-		res->lr_most_restr = lock->l_granted_mode;
-
-	if (work_list && lock->l_completion_ast != NULL)
-		ldlm_add_ast_work_item(lock, NULL, work_list);
-
-	ldlm_pool_add(&ldlm_res_to_ns(res)->ns_pool, lock);
-}
-
-/**
- * Search for a lock with given properties in a queue.
- *
- * \retval a referenced lock or NULL.  See the flag descriptions below, in the
- * comment above ldlm_lock_match
- */
-static struct ldlm_lock *search_queue(struct list_head *queue,
-				      ldlm_mode_t *mode,
-				      ldlm_policy_data_t *policy,
-				      struct ldlm_lock *old_lock,
-				      __u64 flags, int unref)
-{
-	struct ldlm_lock *lock;
-	struct list_head       *tmp;
-
-	list_for_each(tmp, queue) {
-		ldlm_mode_t match;
-
-		lock = list_entry(tmp, struct ldlm_lock, l_res_link);
-
-		if (lock == old_lock)
-			break;
-
-		/* Check if this lock can be matched.
-		 * Used by LU-2919(exclusive open) for open lease lock */
-		if (ldlm_is_excl(lock))
-			continue;
-
-		/* llite sometimes wants to match locks that will be
-		 * canceled when their users drop, but we allow it to match
-		 * if it passes in CBPENDING and the lock still has users.
-		 * this is generally only going to be used by children
-		 * whose parents already hold a lock so forward progress
-		 * can still happen. */
-		if (lock->l_flags & LDLM_FL_CBPENDING &&
-		    !(flags & LDLM_FL_CBPENDING))
-			continue;
-		if (!unref && lock->l_flags & LDLM_FL_CBPENDING &&
-		    lock->l_readers == 0 && lock->l_writers == 0)
-			continue;
-
-		if (!(lock->l_req_mode & *mode))
-			continue;
-		match = lock->l_req_mode;
-
-		if (lock->l_resource->lr_type == LDLM_EXTENT &&
-		    (lock->l_policy_data.l_extent.start >
-		     policy->l_extent.start ||
-		     lock->l_policy_data.l_extent.end < policy->l_extent.end))
-			continue;
-
-		if (unlikely(match == LCK_GROUP) &&
-		    lock->l_resource->lr_type == LDLM_EXTENT &&
-		    lock->l_policy_data.l_extent.gid != policy->l_extent.gid)
-			continue;
-
-		/* We match if we have existing lock with same or wider set
-		   of bits. */
-		if (lock->l_resource->lr_type == LDLM_IBITS &&
-		     ((lock->l_policy_data.l_inodebits.bits &
-		      policy->l_inodebits.bits) !=
-		      policy->l_inodebits.bits))
-			continue;
-
-		if (!unref && (lock->l_flags & LDLM_FL_GONE_MASK))
-			continue;
-
-		if ((flags & LDLM_FL_LOCAL_ONLY) &&
-		    !(lock->l_flags & LDLM_FL_LOCAL))
-			continue;
-
-		if (flags & LDLM_FL_TEST_LOCK) {
-			LDLM_LOCK_GET(lock);
-			ldlm_lock_touch_in_lru(lock);
-		} else {
-			ldlm_lock_addref_internal_nolock(lock, match);
-		}
-		*mode = match;
-		return lock;
-	}
-
-	return NULL;
-}
-
-void ldlm_lock_fail_match_locked(struct ldlm_lock *lock)
-{
-	if ((lock->l_flags & LDLM_FL_FAIL_NOTIFIED) == 0) {
-		lock->l_flags |= LDLM_FL_FAIL_NOTIFIED;
-		wake_up_all(&lock->l_waitq);
-	}
-}
-EXPORT_SYMBOL(ldlm_lock_fail_match_locked);
-
-void ldlm_lock_fail_match(struct ldlm_lock *lock)
-{
-	lock_res_and_lock(lock);
-	ldlm_lock_fail_match_locked(lock);
-	unlock_res_and_lock(lock);
-}
-EXPORT_SYMBOL(ldlm_lock_fail_match);
-
-/**
- * Mark lock as "matchable" by OST.
- *
- * Used to prevent certain races in LOV/OSC where the lock is granted, but LVB
- * is not yet valid.
- * Assumes LDLM lock is already locked.
- */
-void ldlm_lock_allow_match_locked(struct ldlm_lock *lock)
-{
-	lock->l_flags |= LDLM_FL_LVB_READY;
-	wake_up_all(&lock->l_waitq);
-}
-EXPORT_SYMBOL(ldlm_lock_allow_match_locked);
-
-/**
- * Mark lock as "matchable" by OST.
- * Locks the lock and then \see ldlm_lock_allow_match_locked
- */
-void ldlm_lock_allow_match(struct ldlm_lock *lock)
-{
-	lock_res_and_lock(lock);
-	ldlm_lock_allow_match_locked(lock);
-	unlock_res_and_lock(lock);
-}
-EXPORT_SYMBOL(ldlm_lock_allow_match);
-
-/**
- * Attempt to find a lock with specified properties.
- *
- * Typically returns a reference to matched lock unless LDLM_FL_TEST_LOCK is
- * set in \a flags
- *
- * Can be called in two ways:
- *
- * If 'ns' is NULL, then lockh describes an existing lock that we want to look
- * for a duplicate of.
- *
- * Otherwise, all of the fields must be filled in, to match against.
- *
- * If 'flags' contains LDLM_FL_LOCAL_ONLY, then only match local locks on the
- *     server (ie, connh is NULL)
- * If 'flags' contains LDLM_FL_BLOCK_GRANTED, then only locks on the granted
- *     list will be considered
- * If 'flags' contains LDLM_FL_CBPENDING, then locks that have been marked
- *     to be canceled can still be matched as long as they still have reader
- *     or writer referneces
- * If 'flags' contains LDLM_FL_TEST_LOCK, then don't actually reference a lock,
- *     just tell us if we would have matched.
- *
- * \retval 1 if it finds an already-existing lock that is compatible; in this
- * case, lockh is filled in with a addref()ed lock
- *
- * We also check security context, and if that fails we simply return 0 (to
- * keep caller code unchanged), the context failure will be discovered by
- * caller sometime later.
- */
-ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
-			    const struct ldlm_res_id *res_id, ldlm_type_t type,
-			    ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			    struct lustre_handle *lockh, int unref)
-{
-	struct ldlm_resource *res;
-	struct ldlm_lock *lock, *old_lock = NULL;
-	int rc = 0;
-
-	if (ns == NULL) {
-		old_lock = ldlm_handle2lock(lockh);
-		LASSERT(old_lock);
-
-		ns = ldlm_lock_to_ns(old_lock);
-		res_id = &old_lock->l_resource->lr_name;
-		type = old_lock->l_resource->lr_type;
-		mode = old_lock->l_req_mode;
-	}
-
-	res = ldlm_resource_get(ns, NULL, res_id, type, 0);
-	if (res == NULL) {
-		LASSERT(old_lock == NULL);
-		return 0;
-	}
-
-	LDLM_RESOURCE_ADDREF(res);
-	lock_res(res);
-
-	lock = search_queue(&res->lr_granted, &mode, policy, old_lock,
-			    flags, unref);
-	if (lock != NULL) {
-		rc = 1;
-		goto out;
-	}
-	if (flags & LDLM_FL_BLOCK_GRANTED) {
-		rc = 0;
-		goto out;
-	}
-	lock = search_queue(&res->lr_converting, &mode, policy, old_lock,
-			    flags, unref);
-	if (lock != NULL) {
-		rc = 1;
-		goto out;
-	}
-	lock = search_queue(&res->lr_waiting, &mode, policy, old_lock,
-			    flags, unref);
-	if (lock != NULL) {
-		rc = 1;
-		goto out;
-	}
-
- out:
-	unlock_res(res);
-	LDLM_RESOURCE_DELREF(res);
-	ldlm_resource_putref(res);
-
-	if (lock) {
-		ldlm_lock2handle(lock, lockh);
-		if ((flags & LDLM_FL_LVB_READY) &&
-		    (!(lock->l_flags & LDLM_FL_LVB_READY))) {
-			__u64 wait_flags = LDLM_FL_LVB_READY |
-				LDLM_FL_DESTROYED | LDLM_FL_FAIL_NOTIFIED;
-			struct l_wait_info lwi;
-
-			if (lock->l_completion_ast) {
-				int err = lock->l_completion_ast(lock,
-							  LDLM_FL_WAIT_NOREPROC,
-								 NULL);
-				if (err) {
-					if (flags & LDLM_FL_TEST_LOCK)
-						LDLM_LOCK_RELEASE(lock);
-					else
-						ldlm_lock_decref_internal(lock,
-									  mode);
-					rc = 0;
-					goto out2;
-				}
-			}
-
-			lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(obd_timeout),
-					       NULL, LWI_ON_SIGNAL_NOOP, NULL);
-
-			/* XXX FIXME see comment on CAN_MATCH in lustre_dlm.h */
-			l_wait_event(lock->l_waitq,
-				     lock->l_flags & wait_flags,
-				     &lwi);
-			if (!(lock->l_flags & LDLM_FL_LVB_READY)) {
-				if (flags & LDLM_FL_TEST_LOCK)
-					LDLM_LOCK_RELEASE(lock);
-				else
-					ldlm_lock_decref_internal(lock, mode);
-				rc = 0;
-			}
-		}
-	}
- out2:
-	if (rc) {
-		LDLM_DEBUG(lock, "matched (%llu %llu)",
-			   (type == LDLM_PLAIN || type == LDLM_IBITS) ?
-				res_id->name[2] : policy->l_extent.start,
-			   (type == LDLM_PLAIN || type == LDLM_IBITS) ?
-				res_id->name[3] : policy->l_extent.end);
-
-		/* check user's security context */
-		if (lock->l_conn_export &&
-		    sptlrpc_import_check_ctx(
-				class_exp2cliimp(lock->l_conn_export))) {
-			if (!(flags & LDLM_FL_TEST_LOCK))
-				ldlm_lock_decref_internal(lock, mode);
-			rc = 0;
-		}
-
-		if (flags & LDLM_FL_TEST_LOCK)
-			LDLM_LOCK_RELEASE(lock);
-
-	} else if (!(flags & LDLM_FL_TEST_LOCK)) {/*less verbose for test-only*/
-		LDLM_DEBUG_NOLOCK("not matched ns %p type %u mode %u res %llu/%llu (%llu %llu)",
-				  ns, type, mode, res_id->name[0],
-				  res_id->name[1],
-				  (type == LDLM_PLAIN || type == LDLM_IBITS) ?
-					res_id->name[2] : policy->l_extent.start,
-				  (type == LDLM_PLAIN || type == LDLM_IBITS) ?
-					res_id->name[3] : policy->l_extent.end);
-	}
-	if (old_lock)
-		LDLM_LOCK_PUT(old_lock);
-
-	return rc ? mode : 0;
-}
-EXPORT_SYMBOL(ldlm_lock_match);
-
-ldlm_mode_t ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
-					__u64 *bits)
-{
-	struct ldlm_lock *lock;
-	ldlm_mode_t mode = 0;
-
-	lock = ldlm_handle2lock(lockh);
-	if (lock != NULL) {
-		lock_res_and_lock(lock);
-		if (lock->l_flags & LDLM_FL_GONE_MASK)
-			goto out;
-
-		if (lock->l_flags & LDLM_FL_CBPENDING &&
-		    lock->l_readers == 0 && lock->l_writers == 0)
-			goto out;
-
-		if (bits)
-			*bits = lock->l_policy_data.l_inodebits.bits;
-		mode = lock->l_granted_mode;
-		ldlm_lock_addref_internal_nolock(lock, mode);
-	}
-
-out:
-	if (lock != NULL) {
-		unlock_res_and_lock(lock);
-		LDLM_LOCK_PUT(lock);
-	}
-	return mode;
-}
-EXPORT_SYMBOL(ldlm_revalidate_lock_handle);
-
-/** The caller must guarantee that the buffer is large enough. */
-int ldlm_fill_lvb(struct ldlm_lock *lock, struct req_capsule *pill,
-		  enum req_location loc, void *data, int size)
-{
-	void *lvb;
-
-	LASSERT(data != NULL);
-	LASSERT(size >= 0);
-
-	switch (lock->l_lvb_type) {
-	case LVB_T_OST:
-		if (size == sizeof(struct ost_lvb)) {
-			if (loc == RCL_CLIENT)
-				lvb = req_capsule_client_swab_get(pill,
-						&RMF_DLM_LVB,
-						lustre_swab_ost_lvb);
-			else
-				lvb = req_capsule_server_swab_get(pill,
-						&RMF_DLM_LVB,
-						lustre_swab_ost_lvb);
-			if (unlikely(lvb == NULL)) {
-				LDLM_ERROR(lock, "no LVB");
-				return -EPROTO;
-			}
-
-			memcpy(data, lvb, size);
-		} else if (size == sizeof(struct ost_lvb_v1)) {
-			struct ost_lvb *olvb = data;
-
-			if (loc == RCL_CLIENT)
-				lvb = req_capsule_client_swab_get(pill,
-						&RMF_DLM_LVB,
-						lustre_swab_ost_lvb_v1);
-			else
-				lvb = req_capsule_server_sized_swab_get(pill,
-						&RMF_DLM_LVB, size,
-						lustre_swab_ost_lvb_v1);
-			if (unlikely(lvb == NULL)) {
-				LDLM_ERROR(lock, "no LVB");
-				return -EPROTO;
-			}
-
-			memcpy(data, lvb, size);
-			olvb->lvb_mtime_ns = 0;
-			olvb->lvb_atime_ns = 0;
-			olvb->lvb_ctime_ns = 0;
-		} else {
-			LDLM_ERROR(lock, "Replied unexpected ost LVB size %d",
-				   size);
-			return -EINVAL;
-		}
-		break;
-	case LVB_T_LQUOTA:
-		if (size == sizeof(struct lquota_lvb)) {
-			if (loc == RCL_CLIENT)
-				lvb = req_capsule_client_swab_get(pill,
-						&RMF_DLM_LVB,
-						lustre_swab_lquota_lvb);
-			else
-				lvb = req_capsule_server_swab_get(pill,
-						&RMF_DLM_LVB,
-						lustre_swab_lquota_lvb);
-			if (unlikely(lvb == NULL)) {
-				LDLM_ERROR(lock, "no LVB");
-				return -EPROTO;
-			}
-
-			memcpy(data, lvb, size);
-		} else {
-			LDLM_ERROR(lock,
-				   "Replied unexpected lquota LVB size %d",
-				   size);
-			return -EINVAL;
-		}
-		break;
-	case LVB_T_LAYOUT:
-		if (size == 0)
-			break;
-
-		if (loc == RCL_CLIENT)
-			lvb = req_capsule_client_get(pill, &RMF_DLM_LVB);
-		else
-			lvb = req_capsule_server_get(pill, &RMF_DLM_LVB);
-		if (unlikely(lvb == NULL)) {
-			LDLM_ERROR(lock, "no LVB");
-			return -EPROTO;
-		}
-
-		memcpy(data, lvb, size);
-		break;
-	default:
-		LDLM_ERROR(lock, "Unknown LVB type: %d\n", lock->l_lvb_type);
-		dump_stack();
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/**
- * Create and fill in new LDLM lock with specified properties.
- * Returns a referenced lock
- */
-struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
-				   const struct ldlm_res_id *res_id,
-				   ldlm_type_t type,
-				   ldlm_mode_t mode,
-				   const struct ldlm_callback_suite *cbs,
-				   void *data, __u32 lvb_len,
-				   enum lvb_type lvb_type)
-{
-	struct ldlm_lock *lock;
-	struct ldlm_resource *res;
-
-	res = ldlm_resource_get(ns, NULL, res_id, type, 1);
-	if (res == NULL)
-		return NULL;
-
-	lock = ldlm_lock_new(res);
-
-	if (lock == NULL)
-		return NULL;
-
-	lock->l_req_mode = mode;
-	lock->l_ast_data = data;
-	lock->l_pid = current_pid();
-	if (ns_is_server(ns))
-		lock->l_flags |= LDLM_FL_NS_SRV;
-	if (cbs) {
-		lock->l_blocking_ast = cbs->lcs_blocking;
-		lock->l_completion_ast = cbs->lcs_completion;
-		lock->l_glimpse_ast = cbs->lcs_glimpse;
-	}
-
-	lock->l_tree_node = NULL;
-	/* if this is the extent lock, allocate the interval tree node */
-	if (type == LDLM_EXTENT) {
-		if (ldlm_interval_alloc(lock) == NULL)
-			goto out;
-	}
-
-	if (lvb_len) {
-		lock->l_lvb_len = lvb_len;
-		lock->l_lvb_data = kzalloc(lvb_len, GFP_NOFS);
-		if (!lock->l_lvb_data)
-			goto out;
-	}
-
-	lock->l_lvb_type = lvb_type;
-	if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_NEW_LOCK))
-		goto out;
-
-	return lock;
-
-out:
-	ldlm_lock_destroy(lock);
-	LDLM_LOCK_RELEASE(lock);
-	return NULL;
-}
-
-/**
- * Enqueue (request) a lock.
- *
- * Does not block. As a result of enqueue the lock would be put
- * into granted or waiting list.
- *
- * If namespace has intent policy sent and the lock has LDLM_FL_HAS_INTENT flag
- * set, skip all the enqueueing and delegate lock processing to intent policy
- * function.
- */
-ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *ns,
-			       struct ldlm_lock **lockp,
-			       void *cookie, __u64 *flags)
-{
-	struct ldlm_lock *lock = *lockp;
-	struct ldlm_resource *res = lock->l_resource;
-	int local = ns_is_client(ldlm_res_to_ns(res));
-	ldlm_error_t rc = ELDLM_OK;
-	struct ldlm_interval *node = NULL;
-
-	lock->l_last_activity = get_seconds();
-	/* policies are not executed on the client or during replay */
-	if ((*flags & (LDLM_FL_HAS_INTENT|LDLM_FL_REPLAY)) == LDLM_FL_HAS_INTENT
-	    && !local && ns->ns_policy) {
-		rc = ns->ns_policy(ns, lockp, cookie, lock->l_req_mode, *flags,
-				   NULL);
-		if (rc == ELDLM_LOCK_REPLACED) {
-			/* The lock that was returned has already been granted,
-			 * and placed into lockp.  If it's not the same as the
-			 * one we passed in, then destroy the old one and our
-			 * work here is done. */
-			if (lock != *lockp) {
-				ldlm_lock_destroy(lock);
-				LDLM_LOCK_RELEASE(lock);
-			}
-			*flags |= LDLM_FL_LOCK_CHANGED;
-			return 0;
-		} else if (rc != ELDLM_OK ||
-			   (rc == ELDLM_OK && (*flags & LDLM_FL_INTENT_ONLY))) {
-			ldlm_lock_destroy(lock);
-			return rc;
-		}
-	}
-
-	/* For a replaying lock, it might be already in granted list. So
-	 * unlinking the lock will cause the interval node to be freed, we
-	 * have to allocate the interval node early otherwise we can't regrant
-	 * this lock in the future. - jay */
-	if (!local && (*flags & LDLM_FL_REPLAY) && res->lr_type == LDLM_EXTENT)
-		OBD_SLAB_ALLOC_PTR_GFP(node, ldlm_interval_slab, GFP_NOFS);
-
-	lock_res_and_lock(lock);
-	if (local && lock->l_req_mode == lock->l_granted_mode) {
-		/* The server returned a blocked lock, but it was granted
-		 * before we got a chance to actually enqueue it.  We don't
-		 * need to do anything else. */
-		*flags &= ~(LDLM_FL_BLOCK_GRANTED |
-			    LDLM_FL_BLOCK_CONV | LDLM_FL_BLOCK_WAIT);
-		goto out;
-	}
-
-	ldlm_resource_unlink_lock(lock);
-	if (res->lr_type == LDLM_EXTENT && lock->l_tree_node == NULL) {
-		if (node == NULL) {
-			ldlm_lock_destroy_nolock(lock);
-			rc = -ENOMEM;
-			goto out;
-		}
-
-		INIT_LIST_HEAD(&node->li_group);
-		ldlm_interval_attach(node, lock);
-		node = NULL;
-	}
-
-	/* Some flags from the enqueue want to make it into the AST, via the
-	 * lock's l_flags. */
-	lock->l_flags |= *flags & LDLM_FL_AST_DISCARD_DATA;
-
-	/* This distinction between local lock trees is very important; a client
-	 * namespace only has information about locks taken by that client, and
-	 * thus doesn't have enough information to decide for itself if it can
-	 * be granted (below).  In this case, we do exactly what the server
-	 * tells us to do, as dictated by the 'flags'.
-	 *
-	 * We do exactly the same thing during recovery, when the server is
-	 * more or less trusting the clients not to lie.
-	 *
-	 * FIXME (bug 268): Detect obvious lies by checking compatibility in
-	 * granted/converting queues. */
-	if (local) {
-		if (*flags & LDLM_FL_BLOCK_CONV)
-			ldlm_resource_add_lock(res, &res->lr_converting, lock);
-		else if (*flags & (LDLM_FL_BLOCK_WAIT | LDLM_FL_BLOCK_GRANTED))
-			ldlm_resource_add_lock(res, &res->lr_waiting, lock);
-		else
-			ldlm_grant_lock(lock, NULL);
-		goto out;
-	} else {
-		CERROR("This is client-side-only module, cannot handle LDLM_NAMESPACE_SERVER resource type lock.\n");
-		LBUG();
-	}
-
-out:
-	unlock_res_and_lock(lock);
-	if (node)
-		OBD_SLAB_FREE(node, ldlm_interval_slab, sizeof(*node));
-	return rc;
-}
-
-
-/**
- * Process a call to blocking AST callback for a lock in ast_work list
- */
-static int
-ldlm_work_bl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
-{
-	struct ldlm_cb_set_arg *arg = opaq;
-	struct ldlm_lock_desc   d;
-	int		     rc;
-	struct ldlm_lock       *lock;
-
-	if (list_empty(arg->list))
-		return -ENOENT;
-
-	lock = list_entry(arg->list->next, struct ldlm_lock, l_bl_ast);
-
-	/* nobody should touch l_bl_ast */
-	lock_res_and_lock(lock);
-	list_del_init(&lock->l_bl_ast);
-
-	LASSERT(lock->l_flags & LDLM_FL_AST_SENT);
-	LASSERT(lock->l_bl_ast_run == 0);
-	LASSERT(lock->l_blocking_lock);
-	lock->l_bl_ast_run++;
-	unlock_res_and_lock(lock);
-
-	ldlm_lock2desc(lock->l_blocking_lock, &d);
-
-	rc = lock->l_blocking_ast(lock, &d, (void *)arg, LDLM_CB_BLOCKING);
-	LDLM_LOCK_RELEASE(lock->l_blocking_lock);
-	lock->l_blocking_lock = NULL;
-	LDLM_LOCK_RELEASE(lock);
-
-	return rc;
-}
-
-/**
- * Process a call to completion AST callback for a lock in ast_work list
- */
-static int
-ldlm_work_cp_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
-{
-	struct ldlm_cb_set_arg  *arg = opaq;
-	int		      rc = 0;
-	struct ldlm_lock	*lock;
-	ldlm_completion_callback completion_callback;
-
-	if (list_empty(arg->list))
-		return -ENOENT;
-
-	lock = list_entry(arg->list->next, struct ldlm_lock, l_cp_ast);
-
-	/* It's possible to receive a completion AST before we've set
-	 * the l_completion_ast pointer: either because the AST arrived
-	 * before the reply, or simply because there's a small race
-	 * window between receiving the reply and finishing the local
-	 * enqueue. (bug 842)
-	 *
-	 * This can't happen with the blocking_ast, however, because we
-	 * will never call the local blocking_ast until we drop our
-	 * reader/writer reference, which we won't do until we get the
-	 * reply and finish enqueueing. */
-
-	/* nobody should touch l_cp_ast */
-	lock_res_and_lock(lock);
-	list_del_init(&lock->l_cp_ast);
-	LASSERT(lock->l_flags & LDLM_FL_CP_REQD);
-	/* save l_completion_ast since it can be changed by
-	 * mds_intent_policy(), see bug 14225 */
-	completion_callback = lock->l_completion_ast;
-	lock->l_flags &= ~LDLM_FL_CP_REQD;
-	unlock_res_and_lock(lock);
-
-	if (completion_callback != NULL)
-		rc = completion_callback(lock, 0, (void *)arg);
-	LDLM_LOCK_RELEASE(lock);
-
-	return rc;
-}
-
-/**
- * Process a call to revocation AST callback for a lock in ast_work list
- */
-static int
-ldlm_work_revoke_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
-{
-	struct ldlm_cb_set_arg *arg = opaq;
-	struct ldlm_lock_desc   desc;
-	int		     rc;
-	struct ldlm_lock       *lock;
-
-	if (list_empty(arg->list))
-		return -ENOENT;
-
-	lock = list_entry(arg->list->next, struct ldlm_lock, l_rk_ast);
-	list_del_init(&lock->l_rk_ast);
-
-	/* the desc just pretend to exclusive */
-	ldlm_lock2desc(lock, &desc);
-	desc.l_req_mode = LCK_EX;
-	desc.l_granted_mode = 0;
-
-	rc = lock->l_blocking_ast(lock, &desc, (void *)arg, LDLM_CB_BLOCKING);
-	LDLM_LOCK_RELEASE(lock);
-
-	return rc;
-}
-
-/**
- * Process a call to glimpse AST callback for a lock in ast_work list
- */
-int ldlm_work_gl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq)
-{
-	struct ldlm_cb_set_arg		*arg = opaq;
-	struct ldlm_glimpse_work	*gl_work;
-	struct ldlm_lock		*lock;
-	int				 rc = 0;
-
-	if (list_empty(arg->list))
-		return -ENOENT;
-
-	gl_work = list_entry(arg->list->next, struct ldlm_glimpse_work,
-				 gl_list);
-	list_del_init(&gl_work->gl_list);
-
-	lock = gl_work->gl_lock;
-
-	/* transfer the glimpse descriptor to ldlm_cb_set_arg */
-	arg->gl_desc = gl_work->gl_desc;
-
-	/* invoke the actual glimpse callback */
-	if (lock->l_glimpse_ast(lock, (void *)arg) == 0)
-		rc = 1;
-
-	LDLM_LOCK_RELEASE(lock);
-
-	if ((gl_work->gl_flags & LDLM_GL_WORK_NOFREE) == 0)
-		kfree(gl_work);
-
-	return rc;
-}
-
-/**
- * Process list of locks in need of ASTs being sent.
- *
- * Used on server to send multiple ASTs together instead of sending one by
- * one.
- */
-int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *rpc_list,
-		      enum ldlm_desc_ast_t ast_type)
-{
-	struct ldlm_cb_set_arg *arg;
-	set_producer_func       work_ast_lock;
-	int		     rc;
-
-	if (list_empty(rpc_list))
-		return 0;
-
-	arg = kzalloc(sizeof(*arg), GFP_NOFS);
-	if (!arg)
-		return -ENOMEM;
-
-	atomic_set(&arg->restart, 0);
-	arg->list = rpc_list;
-
-	switch (ast_type) {
-	case LDLM_WORK_BL_AST:
-		arg->type = LDLM_BL_CALLBACK;
-		work_ast_lock = ldlm_work_bl_ast_lock;
-		break;
-	case LDLM_WORK_CP_AST:
-		arg->type = LDLM_CP_CALLBACK;
-		work_ast_lock = ldlm_work_cp_ast_lock;
-		break;
-	case LDLM_WORK_REVOKE_AST:
-		arg->type = LDLM_BL_CALLBACK;
-		work_ast_lock = ldlm_work_revoke_ast_lock;
-		break;
-	case LDLM_WORK_GL_AST:
-		arg->type = LDLM_GL_CALLBACK;
-		work_ast_lock = ldlm_work_gl_ast_lock;
-		break;
-	default:
-		LBUG();
-	}
-
-	/* We create a ptlrpc request set with flow control extension.
-	 * This request set will use the work_ast_lock function to produce new
-	 * requests and will send a new request each time one completes in order
-	 * to keep the number of requests in flight to ns_max_parallel_ast */
-	arg->set = ptlrpc_prep_fcset(ns->ns_max_parallel_ast ? : UINT_MAX,
-				     work_ast_lock, arg);
-	if (arg->set == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	ptlrpc_set_wait(arg->set);
-	ptlrpc_set_destroy(arg->set);
-
-	rc = atomic_read(&arg->restart) ? -ERESTART : 0;
-	goto out;
-out:
-	kfree(arg);
-	return rc;
-}
-
-static int reprocess_one_queue(struct ldlm_resource *res, void *closure)
-{
-	ldlm_reprocess_all(res);
-	return LDLM_ITER_CONTINUE;
-}
-
-static int ldlm_reprocess_res(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			      struct hlist_node *hnode, void *arg)
-{
-	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
-	int    rc;
-
-	rc = reprocess_one_queue(res, arg);
-
-	return rc == LDLM_ITER_STOP;
-}
-
-/**
- * Iterate through all resources on a namespace attempting to grant waiting
- * locks.
- */
-void ldlm_reprocess_all_ns(struct ldlm_namespace *ns)
-{
-	if (ns != NULL) {
-		cfs_hash_for_each_nolock(ns->ns_rs_hash,
-					 ldlm_reprocess_res, NULL);
-	}
-}
-EXPORT_SYMBOL(ldlm_reprocess_all_ns);
-
-/**
- * Try to grant all waiting locks on a resource.
- *
- * Calls ldlm_reprocess_queue on converting and waiting queues.
- *
- * Typically called after some resource locks are cancelled to see
- * if anything could be granted as a result of the cancellation.
- */
-void ldlm_reprocess_all(struct ldlm_resource *res)
-{
-	LIST_HEAD(rpc_list);
-
-	if (!ns_is_client(ldlm_res_to_ns(res))) {
-		CERROR("This is client-side-only module, cannot handle LDLM_NAMESPACE_SERVER resource type lock.\n");
-		LBUG();
-	}
-}
-
-/**
- * Helper function to call blocking AST for LDLM lock \a lock in a
- * "cancelling" mode.
- */
-void ldlm_cancel_callback(struct ldlm_lock *lock)
-{
-	check_res_locked(lock->l_resource);
-	if (!(lock->l_flags & LDLM_FL_CANCEL)) {
-		lock->l_flags |= LDLM_FL_CANCEL;
-		if (lock->l_blocking_ast) {
-			unlock_res_and_lock(lock);
-			lock->l_blocking_ast(lock, NULL, lock->l_ast_data,
-					     LDLM_CB_CANCELING);
-			lock_res_and_lock(lock);
-		} else {
-			LDLM_DEBUG(lock, "no blocking ast");
-		}
-	}
-	lock->l_flags |= LDLM_FL_BL_DONE;
-}
-
-/**
- * Remove skiplist-enabled LDLM lock \a req from granted list
- */
-void ldlm_unlink_lock_skiplist(struct ldlm_lock *req)
-{
-	if (req->l_resource->lr_type != LDLM_PLAIN &&
-	    req->l_resource->lr_type != LDLM_IBITS)
-		return;
-
-	list_del_init(&req->l_sl_policy);
-	list_del_init(&req->l_sl_mode);
-}
-
-/**
- * Attempts to cancel LDLM lock \a lock that has no reader/writer references.
- */
-void ldlm_lock_cancel(struct ldlm_lock *lock)
-{
-	struct ldlm_resource *res;
-	struct ldlm_namespace *ns;
-
-	lock_res_and_lock(lock);
-
-	res = lock->l_resource;
-	ns  = ldlm_res_to_ns(res);
-
-	/* Please do not, no matter how tempting, remove this LBUG without
-	 * talking to me first. -phik */
-	if (lock->l_readers || lock->l_writers) {
-		LDLM_ERROR(lock, "lock still has references");
-		LBUG();
-	}
-
-	if (lock->l_flags & LDLM_FL_WAITED)
-		ldlm_del_waiting_lock(lock);
-
-	/* Releases cancel callback. */
-	ldlm_cancel_callback(lock);
-
-	/* Yes, second time, just in case it was added again while we were
-	 * running with no res lock in ldlm_cancel_callback */
-	if (lock->l_flags & LDLM_FL_WAITED)
-		ldlm_del_waiting_lock(lock);
-
-	ldlm_resource_unlink_lock(lock);
-	ldlm_lock_destroy_nolock(lock);
-
-	if (lock->l_granted_mode == lock->l_req_mode)
-		ldlm_pool_del(&ns->ns_pool, lock);
-
-	/* Make sure we will not be called again for same lock what is possible
-	 * if not to zero out lock->l_granted_mode */
-	lock->l_granted_mode = LCK_MINMODE;
-	unlock_res_and_lock(lock);
-}
-EXPORT_SYMBOL(ldlm_lock_cancel);
-
-/**
- * Set opaque data into the lock that only makes sense to upper layer.
- */
-int ldlm_lock_set_data(struct lustre_handle *lockh, void *data)
-{
-	struct ldlm_lock *lock = ldlm_handle2lock(lockh);
-	int rc = -EINVAL;
-
-	if (lock) {
-		if (lock->l_ast_data == NULL)
-			lock->l_ast_data = data;
-		if (lock->l_ast_data == data)
-			rc = 0;
-		LDLM_LOCK_PUT(lock);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_lock_set_data);
-
-struct export_cl_data {
-	struct obd_export	*ecl_exp;
-	int			ecl_loop;
-};
-
-/**
- * Iterator function for ldlm_cancel_locks_for_export.
- * Cancels passed locks.
- */
-int ldlm_cancel_locks_for_export_cb(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-				    struct hlist_node *hnode, void *data)
-
-{
-	struct export_cl_data	*ecl = (struct export_cl_data *)data;
-	struct obd_export	*exp  = ecl->ecl_exp;
-	struct ldlm_lock     *lock = cfs_hash_object(hs, hnode);
-	struct ldlm_resource *res;
-
-	res = ldlm_resource_getref(lock->l_resource);
-	LDLM_LOCK_GET(lock);
-
-	LDLM_DEBUG(lock, "export %p", exp);
-	ldlm_res_lvbo_update(res, NULL, 1);
-	ldlm_lock_cancel(lock);
-	ldlm_reprocess_all(res);
-	ldlm_resource_putref(res);
-	LDLM_LOCK_RELEASE(lock);
-
-	ecl->ecl_loop++;
-	if ((ecl->ecl_loop & -ecl->ecl_loop) == ecl->ecl_loop) {
-		CDEBUG(D_INFO,
-		       "Cancel lock %p for export %p (loop %d), still have %d locks left on hash table.\n",
-		       lock, exp, ecl->ecl_loop,
-		       atomic_read(&hs->hs_count));
-	}
-
-	return 0;
-}
-
-/**
- * Cancel all locks for given export.
- *
- * Typically called on client disconnection/eviction
- */
-void ldlm_cancel_locks_for_export(struct obd_export *exp)
-{
-	struct export_cl_data	ecl = {
-		.ecl_exp	= exp,
-		.ecl_loop	= 0,
-	};
-
-	cfs_hash_for_each_empty(exp->exp_lock_hash,
-				ldlm_cancel_locks_for_export_cb, &ecl);
-}
-
-/**
- * Downgrade an exclusive lock.
- *
- * A fast variant of ldlm_lock_convert for conversion of exclusive
- * locks. The conversion is always successful.
- * Used by Commit on Sharing (COS) code.
- *
- * \param lock A lock to convert
- * \param new_mode new lock mode
- */
-void ldlm_lock_downgrade(struct ldlm_lock *lock, int new_mode)
-{
-	LASSERT(lock->l_granted_mode & (LCK_PW | LCK_EX));
-	LASSERT(new_mode == LCK_COS);
-
-	lock_res_and_lock(lock);
-	ldlm_resource_unlink_lock(lock);
-	/*
-	 * Remove the lock from pool as it will be added again in
-	 * ldlm_grant_lock() called below.
-	 */
-	ldlm_pool_del(&ldlm_lock_to_ns(lock)->ns_pool, lock);
-
-	lock->l_req_mode = new_mode;
-	ldlm_grant_lock(lock, NULL);
-	unlock_res_and_lock(lock);
-	ldlm_reprocess_all(lock->l_resource);
-}
-EXPORT_SYMBOL(ldlm_lock_downgrade);
-
-/**
- * Attempt to convert already granted lock to a different mode.
- *
- * While lock conversion is not currently used, future client-side
- * optimizations could take advantage of it to avoid discarding cached
- * pages on a file.
- */
-struct ldlm_resource *ldlm_lock_convert(struct ldlm_lock *lock, int new_mode,
-					__u32 *flags)
-{
-	LIST_HEAD(rpc_list);
-	struct ldlm_resource *res;
-	struct ldlm_namespace *ns;
-	int granted = 0;
-	struct ldlm_interval *node;
-
-	/* Just return if mode is unchanged. */
-	if (new_mode == lock->l_granted_mode) {
-		*flags |= LDLM_FL_BLOCK_GRANTED;
-		return lock->l_resource;
-	}
-
-	/* I can't check the type of lock here because the bitlock of lock
-	 * is not held here, so do the allocation blindly. -jay */
-	OBD_SLAB_ALLOC_PTR_GFP(node, ldlm_interval_slab, GFP_NOFS);
-	if (node == NULL)
-		/* Actually, this causes EDEADLOCK to be returned */
-		return NULL;
-
-	LASSERTF((new_mode == LCK_PW && lock->l_granted_mode == LCK_PR),
-		 "new_mode %u, granted %u\n", new_mode, lock->l_granted_mode);
-
-	lock_res_and_lock(lock);
-
-	res = lock->l_resource;
-	ns  = ldlm_res_to_ns(res);
-
-	lock->l_req_mode = new_mode;
-	if (res->lr_type == LDLM_PLAIN || res->lr_type == LDLM_IBITS) {
-		ldlm_resource_unlink_lock(lock);
-	} else {
-		ldlm_resource_unlink_lock(lock);
-		if (res->lr_type == LDLM_EXTENT) {
-			/* FIXME: ugly code, I have to attach the lock to a
-			 * interval node again since perhaps it will be granted
-			 * soon */
-			INIT_LIST_HEAD(&node->li_group);
-			ldlm_interval_attach(node, lock);
-			node = NULL;
-		}
-	}
-
-	/*
-	 * Remove old lock from the pool before adding the lock with new
-	 * mode below in ->policy()
-	 */
-	ldlm_pool_del(&ns->ns_pool, lock);
-
-	/* If this is a local resource, put it on the appropriate list. */
-	if (ns_is_client(ldlm_res_to_ns(res))) {
-		if (*flags & (LDLM_FL_BLOCK_CONV | LDLM_FL_BLOCK_GRANTED)) {
-			ldlm_resource_add_lock(res, &res->lr_converting, lock);
-		} else {
-			/* This should never happen, because of the way the
-			 * server handles conversions. */
-			LDLM_ERROR(lock, "Erroneous flags %x on local lock\n",
-				   *flags);
-			LBUG();
-
-			ldlm_grant_lock(lock, &rpc_list);
-			granted = 1;
-			/* FIXME: completion handling not with lr_lock held ! */
-			if (lock->l_completion_ast)
-				lock->l_completion_ast(lock, 0, NULL);
-		}
-	} else {
-		CERROR("This is client-side-only module, cannot handle LDLM_NAMESPACE_SERVER resource type lock.\n");
-		LBUG();
-	}
-	unlock_res_and_lock(lock);
-
-	if (granted)
-		ldlm_run_ast_work(ns, &rpc_list, LDLM_WORK_CP_AST);
-	if (node)
-		OBD_SLAB_FREE(node, ldlm_interval_slab, sizeof(*node));
-	return res;
-}
-EXPORT_SYMBOL(ldlm_lock_convert);
-
-/**
- * Print lock with lock handle \a lockh description into debug log.
- *
- * Used when printing all locks on a resource for debug purposes.
- */
-void ldlm_lock_dump_handle(int level, struct lustre_handle *lockh)
-{
-	struct ldlm_lock *lock;
-
-	if (!((libcfs_debug | D_ERROR) & level))
-		return;
-
-	lock = ldlm_handle2lock(lockh);
-	if (lock == NULL)
-		return;
-
-	LDLM_DEBUG_LIMIT(level, lock, "###");
-
-	LDLM_LOCK_PUT(lock);
-}
-EXPORT_SYMBOL(ldlm_lock_dump_handle);
-
-/**
- * Print lock information with custom message into debug log.
- * Helper function.
- */
-void _ldlm_lock_debug(struct ldlm_lock *lock,
-		      struct libcfs_debug_msg_data *msgdata,
-		      const char *fmt, ...)
-{
-	va_list args;
-	struct obd_export *exp = lock->l_export;
-	struct ldlm_resource *resource = lock->l_resource;
-	char *nid = "local";
-
-	va_start(args, fmt);
-
-	if (exp && exp->exp_connection) {
-		nid = libcfs_nid2str(exp->exp_connection->c_peer.nid);
-	} else if (exp && exp->exp_obd != NULL) {
-		struct obd_import *imp = exp->exp_obd->u.cli.cl_import;
-
-		nid = libcfs_nid2str(imp->imp_connection->c_peer.nid);
-	}
-
-	if (resource == NULL) {
-		libcfs_debug_vmsg2(msgdata, fmt, args,
-				   " ns: \?\? lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: \?\? rrc=\?\? type: \?\?\? flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu lvb_type: %d\n",
-				   lock,
-				   lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
-				   lock->l_readers, lock->l_writers,
-				   ldlm_lockname[lock->l_granted_mode],
-				   ldlm_lockname[lock->l_req_mode],
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
-				   exp ? atomic_read(&exp->exp_refcount) : -99,
-				   lock->l_pid, lock->l_callback_timeout, lock->l_lvb_type);
-		va_end(args);
-		return;
-	}
-
-	switch (resource->lr_type) {
-	case LDLM_EXTENT:
-		libcfs_debug_vmsg2(msgdata, fmt, args,
-				   " ns: %s lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: " DLDLMRES " rrc: %d type: %s [%llu->%llu] (req %llu->%llu) flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu lvb_type: %d\n",
-				   ldlm_lock_to_ns_name(lock), lock,
-				   lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
-				   lock->l_readers, lock->l_writers,
-				   ldlm_lockname[lock->l_granted_mode],
-				   ldlm_lockname[lock->l_req_mode],
-				   PLDLMRES(resource),
-				   atomic_read(&resource->lr_refcount),
-				   ldlm_typename[resource->lr_type],
-				   lock->l_policy_data.l_extent.start,
-				   lock->l_policy_data.l_extent.end,
-				   lock->l_req_extent.start, lock->l_req_extent.end,
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
-				   exp ? atomic_read(&exp->exp_refcount) : -99,
-				   lock->l_pid, lock->l_callback_timeout,
-				   lock->l_lvb_type);
-		break;
-
-	case LDLM_FLOCK:
-		libcfs_debug_vmsg2(msgdata, fmt, args,
-				   " ns: %s lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: " DLDLMRES " rrc: %d type: %s pid: %d [%llu->%llu] flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu\n",
-				   ldlm_lock_to_ns_name(lock), lock,
-				   lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
-				   lock->l_readers, lock->l_writers,
-				   ldlm_lockname[lock->l_granted_mode],
-				   ldlm_lockname[lock->l_req_mode],
-				   PLDLMRES(resource),
-				   atomic_read(&resource->lr_refcount),
-				   ldlm_typename[resource->lr_type],
-				   lock->l_policy_data.l_flock.pid,
-				   lock->l_policy_data.l_flock.start,
-				   lock->l_policy_data.l_flock.end,
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
-				   exp ? atomic_read(&exp->exp_refcount) : -99,
-				   lock->l_pid, lock->l_callback_timeout);
-		break;
-
-	case LDLM_IBITS:
-		libcfs_debug_vmsg2(msgdata, fmt, args,
-				   " ns: %s lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: " DLDLMRES " bits %#llx rrc: %d type: %s flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu lvb_type: %d\n",
-				   ldlm_lock_to_ns_name(lock),
-				   lock, lock->l_handle.h_cookie,
-				   atomic_read(&lock->l_refc),
-				   lock->l_readers, lock->l_writers,
-				   ldlm_lockname[lock->l_granted_mode],
-				   ldlm_lockname[lock->l_req_mode],
-				   PLDLMRES(resource),
-				   lock->l_policy_data.l_inodebits.bits,
-				   atomic_read(&resource->lr_refcount),
-				   ldlm_typename[resource->lr_type],
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
-				   exp ? atomic_read(&exp->exp_refcount) : -99,
-				   lock->l_pid, lock->l_callback_timeout,
-				   lock->l_lvb_type);
-		break;
-
-	default:
-		libcfs_debug_vmsg2(msgdata, fmt, args,
-				   " ns: %s lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: " DLDLMRES " rrc: %d type: %s flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu lvb_type: %d\n",
-				   ldlm_lock_to_ns_name(lock),
-				   lock, lock->l_handle.h_cookie,
-				   atomic_read(&lock->l_refc),
-				   lock->l_readers, lock->l_writers,
-				   ldlm_lockname[lock->l_granted_mode],
-				   ldlm_lockname[lock->l_req_mode],
-				   PLDLMRES(resource),
-				   atomic_read(&resource->lr_refcount),
-				   ldlm_typename[resource->lr_type],
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
-				   exp ? atomic_read(&exp->exp_refcount) : -99,
-				   lock->l_pid, lock->l_callback_timeout,
-				   lock->l_lvb_type);
-		break;
-	}
-	va_end(args);
-}
-EXPORT_SYMBOL(_ldlm_lock_debug);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
deleted file mode 100644
index ac79db952da7..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ /dev/null
@@ -1,1250 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/ldlm_lockd.c
- *
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/lustre_dlm.h"
-#include "../include/obd_class.h"
-#include <linux/list.h>
-#include "ldlm_internal.h"
-
-static int ldlm_num_threads;
-module_param(ldlm_num_threads, int, 0444);
-MODULE_PARM_DESC(ldlm_num_threads, "number of DLM service threads to start");
-
-static char *ldlm_cpts;
-module_param(ldlm_cpts, charp, 0444);
-MODULE_PARM_DESC(ldlm_cpts, "CPU partitions ldlm threads should run on");
-
-static struct mutex	ldlm_ref_mutex;
-static int ldlm_refcount;
-
-struct kobject *ldlm_kobj;
-struct kset *ldlm_ns_kset;
-struct kset *ldlm_svc_kset;
-
-struct ldlm_cb_async_args {
-	struct ldlm_cb_set_arg *ca_set_arg;
-	struct ldlm_lock       *ca_lock;
-};
-
-/* LDLM state */
-
-static struct ldlm_state *ldlm_state;
-
-inline unsigned long round_timeout(unsigned long timeout)
-{
-	return cfs_time_seconds((int)cfs_duration_sec(cfs_time_sub(timeout, 0)) + 1);
-}
-
-#define ELT_STOPPED   0
-#define ELT_READY     1
-#define ELT_TERMINATE 2
-
-struct ldlm_bl_pool {
-	spinlock_t		blp_lock;
-
-	/*
-	 * blp_prio_list is used for callbacks that should be handled
-	 * as a priority. It is used for LDLM_FL_DISCARD_DATA requests.
-	 * see bug 13843
-	 */
-	struct list_head	      blp_prio_list;
-
-	/*
-	 * blp_list is used for all other callbacks which are likely
-	 * to take longer to process.
-	 */
-	struct list_head	      blp_list;
-
-	wait_queue_head_t	     blp_waitq;
-	struct completion	blp_comp;
-	atomic_t	    blp_num_threads;
-	atomic_t	    blp_busy_threads;
-	int		     blp_min_threads;
-	int		     blp_max_threads;
-};
-
-struct ldlm_bl_work_item {
-	struct list_head	      blwi_entry;
-	struct ldlm_namespace  *blwi_ns;
-	struct ldlm_lock_desc   blwi_ld;
-	struct ldlm_lock       *blwi_lock;
-	struct list_head	      blwi_head;
-	int		     blwi_count;
-	struct completion	blwi_comp;
-	ldlm_cancel_flags_t     blwi_flags;
-	int		     blwi_mem_pressure;
-};
-
-
-int ldlm_del_waiting_lock(struct ldlm_lock *lock)
-{
-	return 0;
-}
-
-int ldlm_refresh_waiting_lock(struct ldlm_lock *lock, int timeout)
-{
-	return 0;
-}
-
-
-
-/**
- * Callback handler for receiving incoming blocking ASTs.
- *
- * This can only happen on client side.
- */
-void ldlm_handle_bl_callback(struct ldlm_namespace *ns,
-			     struct ldlm_lock_desc *ld, struct ldlm_lock *lock)
-{
-	int do_ast;
-
-	LDLM_DEBUG(lock, "client blocking AST callback handler");
-
-	lock_res_and_lock(lock);
-	lock->l_flags |= LDLM_FL_CBPENDING;
-
-	if (lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK)
-		lock->l_flags |= LDLM_FL_CANCEL;
-
-	do_ast = !lock->l_readers && !lock->l_writers;
-	unlock_res_and_lock(lock);
-
-	if (do_ast) {
-		CDEBUG(D_DLMTRACE,
-		       "Lock %p already unused, calling callback (%p)\n", lock,
-		       lock->l_blocking_ast);
-		if (lock->l_blocking_ast != NULL)
-			lock->l_blocking_ast(lock, ld, lock->l_ast_data,
-					     LDLM_CB_BLOCKING);
-	} else {
-		CDEBUG(D_DLMTRACE,
-		       "Lock %p is referenced, will be cancelled later\n",
-		       lock);
-	}
-
-	LDLM_DEBUG(lock, "client blocking callback handler END");
-	LDLM_LOCK_RELEASE(lock);
-}
-
-/**
- * Callback handler for receiving incoming completion ASTs.
- *
- * This only can happen on client side.
- */
-static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
-				    struct ldlm_namespace *ns,
-				    struct ldlm_request *dlm_req,
-				    struct ldlm_lock *lock)
-{
-	int lvb_len;
-	LIST_HEAD(ast_list);
-	int rc = 0;
-
-	LDLM_DEBUG(lock, "client completion callback handler START");
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL_BL_CB_RACE)) {
-		int to = cfs_time_seconds(1);
-
-		while (to > 0) {
-			set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout(to);
-			if (lock->l_granted_mode == lock->l_req_mode ||
-			    lock->l_flags & LDLM_FL_DESTROYED)
-				break;
-		}
-	}
-
-	lvb_len = req_capsule_get_size(&req->rq_pill, &RMF_DLM_LVB, RCL_CLIENT);
-	if (lvb_len < 0) {
-		LDLM_ERROR(lock, "Fail to get lvb_len, rc = %d", lvb_len);
-		rc = lvb_len;
-		goto out;
-	} else if (lvb_len > 0) {
-		if (lock->l_lvb_len > 0) {
-			/* for extent lock, lvb contains ost_lvb{}. */
-			LASSERT(lock->l_lvb_data != NULL);
-
-			if (unlikely(lock->l_lvb_len < lvb_len)) {
-				LDLM_ERROR(lock, "Replied LVB is larger than expectation, expected = %d, replied = %d",
-					   lock->l_lvb_len, lvb_len);
-				rc = -EINVAL;
-				goto out;
-			}
-		} else if (ldlm_has_layout(lock)) { /* for layout lock, lvb has
-						     * variable length */
-			void *lvb_data;
-
-			lvb_data = kzalloc(lvb_len, GFP_NOFS);
-			if (!lvb_data) {
-				LDLM_ERROR(lock, "No memory: %d.\n", lvb_len);
-				rc = -ENOMEM;
-				goto out;
-			}
-
-			lock_res_and_lock(lock);
-			LASSERT(lock->l_lvb_data == NULL);
-			lock->l_lvb_type = LVB_T_LAYOUT;
-			lock->l_lvb_data = lvb_data;
-			lock->l_lvb_len = lvb_len;
-			unlock_res_and_lock(lock);
-		}
-	}
-
-	lock_res_and_lock(lock);
-	if ((lock->l_flags & LDLM_FL_DESTROYED) ||
-	    lock->l_granted_mode == lock->l_req_mode) {
-		/* bug 11300: the lock has already been granted */
-		unlock_res_and_lock(lock);
-		LDLM_DEBUG(lock, "Double grant race happened");
-		rc = 0;
-		goto out;
-	}
-
-	/* If we receive the completion AST before the actual enqueue returned,
-	 * then we might need to switch lock modes, resources, or extents. */
-	if (dlm_req->lock_desc.l_granted_mode != lock->l_req_mode) {
-		lock->l_req_mode = dlm_req->lock_desc.l_granted_mode;
-		LDLM_DEBUG(lock, "completion AST, new lock mode");
-	}
-
-	if (lock->l_resource->lr_type != LDLM_PLAIN) {
-		ldlm_convert_policy_to_local(req->rq_export,
-					  dlm_req->lock_desc.l_resource.lr_type,
-					  &dlm_req->lock_desc.l_policy_data,
-					  &lock->l_policy_data);
-		LDLM_DEBUG(lock, "completion AST, new policy data");
-	}
-
-	ldlm_resource_unlink_lock(lock);
-	if (memcmp(&dlm_req->lock_desc.l_resource.lr_name,
-		   &lock->l_resource->lr_name,
-		   sizeof(lock->l_resource->lr_name)) != 0) {
-		unlock_res_and_lock(lock);
-		rc = ldlm_lock_change_resource(ns, lock,
-				&dlm_req->lock_desc.l_resource.lr_name);
-		if (rc < 0) {
-			LDLM_ERROR(lock, "Failed to allocate resource");
-			goto out;
-		}
-		LDLM_DEBUG(lock, "completion AST, new resource");
-		CERROR("change resource!\n");
-		lock_res_and_lock(lock);
-	}
-
-	if (dlm_req->lock_flags & LDLM_FL_AST_SENT) {
-		/* BL_AST locks are not needed in LRU.
-		 * Let ldlm_cancel_lru() be fast. */
-		ldlm_lock_remove_from_lru(lock);
-		lock->l_flags |= LDLM_FL_CBPENDING | LDLM_FL_BL_AST;
-		LDLM_DEBUG(lock, "completion AST includes blocking AST");
-	}
-
-	if (lock->l_lvb_len > 0) {
-		rc = ldlm_fill_lvb(lock, &req->rq_pill, RCL_CLIENT,
-				   lock->l_lvb_data, lvb_len);
-		if (rc < 0) {
-			unlock_res_and_lock(lock);
-			goto out;
-		}
-	}
-
-	ldlm_grant_lock(lock, &ast_list);
-	unlock_res_and_lock(lock);
-
-	LDLM_DEBUG(lock, "callback handler finished, about to run_ast_work");
-
-	/* Let Enqueue to call osc_lock_upcall() and initialize
-	 * l_ast_data */
-	OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_ENQ_RACE, 2);
-
-	ldlm_run_ast_work(ns, &ast_list, LDLM_WORK_CP_AST);
-
-	LDLM_DEBUG_NOLOCK("client completion callback handler END (lock %p)",
-			  lock);
-	goto out;
-
-out:
-	if (rc < 0) {
-		lock_res_and_lock(lock);
-		lock->l_flags |= LDLM_FL_FAILED;
-		unlock_res_and_lock(lock);
-		wake_up(&lock->l_waitq);
-	}
-	LDLM_LOCK_RELEASE(lock);
-}
-
-/**
- * Callback handler for receiving incoming glimpse ASTs.
- *
- * This only can happen on client side.  After handling the glimpse AST
- * we also consider dropping the lock here if it is unused locally for a
- * long time.
- */
-static void ldlm_handle_gl_callback(struct ptlrpc_request *req,
-				    struct ldlm_namespace *ns,
-				    struct ldlm_request *dlm_req,
-				    struct ldlm_lock *lock)
-{
-	int rc = -ENOSYS;
-
-	LDLM_DEBUG(lock, "client glimpse AST callback handler");
-
-	if (lock->l_glimpse_ast != NULL)
-		rc = lock->l_glimpse_ast(lock, req);
-
-	if (req->rq_repmsg != NULL) {
-		ptlrpc_reply(req);
-	} else {
-		req->rq_status = rc;
-		ptlrpc_error(req);
-	}
-
-	lock_res_and_lock(lock);
-	if (lock->l_granted_mode == LCK_PW &&
-	    !lock->l_readers && !lock->l_writers &&
-	    cfs_time_after(cfs_time_current(),
-			   cfs_time_add(lock->l_last_used,
-					cfs_time_seconds(10)))) {
-		unlock_res_and_lock(lock);
-		if (ldlm_bl_to_thread_lock(ns, NULL, lock))
-			ldlm_handle_bl_callback(ns, NULL, lock);
-
-		return;
-	}
-	unlock_res_and_lock(lock);
-	LDLM_LOCK_RELEASE(lock);
-}
-
-static int ldlm_callback_reply(struct ptlrpc_request *req, int rc)
-{
-	if (req->rq_no_reply)
-		return 0;
-
-	req->rq_status = rc;
-	if (!req->rq_packed_final) {
-		rc = lustre_pack_reply(req, 1, NULL, NULL);
-		if (rc)
-			return rc;
-	}
-	return ptlrpc_reply(req);
-}
-
-static int __ldlm_bl_to_thread(struct ldlm_bl_work_item *blwi,
-			       ldlm_cancel_flags_t cancel_flags)
-{
-	struct ldlm_bl_pool *blp = ldlm_state->ldlm_bl_pool;
-
-	spin_lock(&blp->blp_lock);
-	if (blwi->blwi_lock &&
-	    blwi->blwi_lock->l_flags & LDLM_FL_DISCARD_DATA) {
-		/* add LDLM_FL_DISCARD_DATA requests to the priority list */
-		list_add_tail(&blwi->blwi_entry, &blp->blp_prio_list);
-	} else {
-		/* other blocking callbacks are added to the regular list */
-		list_add_tail(&blwi->blwi_entry, &blp->blp_list);
-	}
-	spin_unlock(&blp->blp_lock);
-
-	wake_up(&blp->blp_waitq);
-
-	/* can not check blwi->blwi_flags as blwi could be already freed in
-	   LCF_ASYNC mode */
-	if (!(cancel_flags & LCF_ASYNC))
-		wait_for_completion(&blwi->blwi_comp);
-
-	return 0;
-}
-
-static inline void init_blwi(struct ldlm_bl_work_item *blwi,
-			     struct ldlm_namespace *ns,
-			     struct ldlm_lock_desc *ld,
-			     struct list_head *cancels, int count,
-			     struct ldlm_lock *lock,
-			     ldlm_cancel_flags_t cancel_flags)
-{
-	init_completion(&blwi->blwi_comp);
-	INIT_LIST_HEAD(&blwi->blwi_head);
-
-	if (memory_pressure_get())
-		blwi->blwi_mem_pressure = 1;
-
-	blwi->blwi_ns = ns;
-	blwi->blwi_flags = cancel_flags;
-	if (ld != NULL)
-		blwi->blwi_ld = *ld;
-	if (count) {
-		list_add(&blwi->blwi_head, cancels);
-		list_del_init(cancels);
-		blwi->blwi_count = count;
-	} else {
-		blwi->blwi_lock = lock;
-	}
-}
-
-/**
- * Queues a list of locks \a cancels containing \a count locks
- * for later processing by a blocking thread.  If \a count is zero,
- * then the lock referenced as \a lock is queued instead.
- *
- * The blocking thread would then call ->l_blocking_ast callback in the lock.
- * If list addition fails an error is returned and caller is supposed to
- * call ->l_blocking_ast itself.
- */
-static int ldlm_bl_to_thread(struct ldlm_namespace *ns,
-			     struct ldlm_lock_desc *ld,
-			     struct ldlm_lock *lock,
-			     struct list_head *cancels, int count,
-			     ldlm_cancel_flags_t cancel_flags)
-{
-	if (cancels && count == 0)
-		return 0;
-
-	if (cancel_flags & LCF_ASYNC) {
-		struct ldlm_bl_work_item *blwi;
-
-		blwi = kzalloc(sizeof(*blwi), GFP_NOFS);
-		if (!blwi)
-			return -ENOMEM;
-		init_blwi(blwi, ns, ld, cancels, count, lock, cancel_flags);
-
-		return __ldlm_bl_to_thread(blwi, cancel_flags);
-	} else {
-		/* if it is synchronous call do minimum mem alloc, as it could
-		 * be triggered from kernel shrinker
-		 */
-		struct ldlm_bl_work_item blwi;
-
-		memset(&blwi, 0, sizeof(blwi));
-		init_blwi(&blwi, ns, ld, cancels, count, lock, cancel_flags);
-		return __ldlm_bl_to_thread(&blwi, cancel_flags);
-	}
-}
-
-
-int ldlm_bl_to_thread_lock(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
-			   struct ldlm_lock *lock)
-{
-	return ldlm_bl_to_thread(ns, ld, lock, NULL, 0, LCF_ASYNC);
-}
-
-int ldlm_bl_to_thread_list(struct ldlm_namespace *ns, struct ldlm_lock_desc *ld,
-			   struct list_head *cancels, int count,
-			   ldlm_cancel_flags_t cancel_flags)
-{
-	return ldlm_bl_to_thread(ns, ld, NULL, cancels, count, cancel_flags);
-}
-
-/* Setinfo coming from Server (eg MDT) to Client (eg MDC)! */
-static int ldlm_handle_setinfo(struct ptlrpc_request *req)
-{
-	struct obd_device *obd = req->rq_export->exp_obd;
-	char *key;
-	void *val;
-	int keylen, vallen;
-	int rc = -ENOSYS;
-
-	DEBUG_REQ(D_HSM, req, "%s: handle setinfo\n", obd->obd_name);
-
-	req_capsule_set(&req->rq_pill, &RQF_OBD_SET_INFO);
-
-	key = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
-	if (key == NULL) {
-		DEBUG_REQ(D_IOCTL, req, "no set_info key");
-		return -EFAULT;
-	}
-	keylen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_KEY,
-				      RCL_CLIENT);
-	val = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
-	if (val == NULL) {
-		DEBUG_REQ(D_IOCTL, req, "no set_info val");
-		return -EFAULT;
-	}
-	vallen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_VAL,
-				      RCL_CLIENT);
-
-	/* We are responsible for swabbing contents of val */
-
-	if (KEY_IS(KEY_HSM_COPYTOOL_SEND))
-		/* Pass it on to mdc (the "export" in this case) */
-		rc = obd_set_info_async(req->rq_svc_thread->t_env,
-					req->rq_export,
-					sizeof(KEY_HSM_COPYTOOL_SEND),
-					KEY_HSM_COPYTOOL_SEND,
-					vallen, val, NULL);
-	else
-		DEBUG_REQ(D_WARNING, req, "ignoring unknown key %s", key);
-
-	return rc;
-}
-
-static inline void ldlm_callback_errmsg(struct ptlrpc_request *req,
-					const char *msg, int rc,
-					struct lustre_handle *handle)
-{
-	DEBUG_REQ((req->rq_no_reply || rc) ? D_WARNING : D_DLMTRACE, req,
-		  "%s: [nid %s] [rc %d] [lock %#llx]",
-		  msg, libcfs_id2str(req->rq_peer), rc,
-		  handle ? handle->cookie : 0);
-	if (req->rq_no_reply)
-		CWARN("No reply was sent, maybe cause bug 21636.\n");
-	else if (rc)
-		CWARN("Send reply failed, maybe cause bug 21636.\n");
-}
-
-static int ldlm_handle_qc_callback(struct ptlrpc_request *req)
-{
-	struct obd_quotactl *oqctl;
-	struct client_obd *cli = &req->rq_export->exp_obd->u.cli;
-
-	oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
-	if (oqctl == NULL) {
-		CERROR("Can't unpack obd_quotactl\n");
-		return -EPROTO;
-	}
-
-	oqctl->qc_stat = ptlrpc_status_ntoh(oqctl->qc_stat);
-
-	cli->cl_qchk_stat = oqctl->qc_stat;
-	return 0;
-}
-
-/* TODO: handle requests in a similar way as MDT: see mdt_handle_common() */
-static int ldlm_callback_handler(struct ptlrpc_request *req)
-{
-	struct ldlm_namespace *ns;
-	struct ldlm_request *dlm_req;
-	struct ldlm_lock *lock;
-	int rc;
-
-	/* Requests arrive in sender's byte order.  The ptlrpc service
-	 * handler has already checked and, if necessary, byte-swapped the
-	 * incoming request message body, but I am responsible for the
-	 * message buffers. */
-
-	/* do nothing for sec context finalize */
-	if (lustre_msg_get_opc(req->rq_reqmsg) == SEC_CTX_FINI)
-		return 0;
-
-	req_capsule_init(&req->rq_pill, req, RCL_SERVER);
-
-	if (req->rq_export == NULL) {
-		rc = ldlm_callback_reply(req, -ENOTCONN);
-		ldlm_callback_errmsg(req, "Operate on unconnected server",
-				     rc, NULL);
-		return 0;
-	}
-
-	LASSERT(req->rq_export != NULL);
-	LASSERT(req->rq_export->exp_obd != NULL);
-
-	switch (lustre_msg_get_opc(req->rq_reqmsg)) {
-	case LDLM_BL_CALLBACK:
-		if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_BL_CALLBACK_NET))
-			return 0;
-		break;
-	case LDLM_CP_CALLBACK:
-		if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CP_CALLBACK_NET))
-			return 0;
-		break;
-	case LDLM_GL_CALLBACK:
-		if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_GL_CALLBACK_NET))
-			return 0;
-		break;
-	case LDLM_SET_INFO:
-		rc = ldlm_handle_setinfo(req);
-		ldlm_callback_reply(req, rc);
-		return 0;
-	case OBD_QC_CALLBACK:
-		req_capsule_set(&req->rq_pill, &RQF_QC_CALLBACK);
-		if (OBD_FAIL_CHECK(OBD_FAIL_OBD_QC_CALLBACK_NET))
-			return 0;
-		rc = ldlm_handle_qc_callback(req);
-		ldlm_callback_reply(req, rc);
-		return 0;
-	default:
-		CERROR("unknown opcode %u\n",
-		       lustre_msg_get_opc(req->rq_reqmsg));
-		ldlm_callback_reply(req, -EPROTO);
-		return 0;
-	}
-
-	ns = req->rq_export->exp_obd->obd_namespace;
-	LASSERT(ns != NULL);
-
-	req_capsule_set(&req->rq_pill, &RQF_LDLM_CALLBACK);
-
-	dlm_req = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
-	if (dlm_req == NULL) {
-		rc = ldlm_callback_reply(req, -EPROTO);
-		ldlm_callback_errmsg(req, "Operate without parameter", rc,
-				     NULL);
-		return 0;
-	}
-
-	/* Force a known safe race, send a cancel to the server for a lock
-	 * which the server has already started a blocking callback on. */
-	if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL_BL_CB_RACE) &&
-	    lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK) {
-		rc = ldlm_cli_cancel(&dlm_req->lock_handle[0], 0);
-		if (rc < 0)
-			CERROR("ldlm_cli_cancel: %d\n", rc);
-	}
-
-	lock = ldlm_handle2lock_long(&dlm_req->lock_handle[0], 0);
-	if (!lock) {
-		CDEBUG(D_DLMTRACE, "callback on lock %#llx - lock disappeared\n",
-		       dlm_req->lock_handle[0].cookie);
-		rc = ldlm_callback_reply(req, -EINVAL);
-		ldlm_callback_errmsg(req, "Operate with invalid parameter", rc,
-				     &dlm_req->lock_handle[0]);
-		return 0;
-	}
-
-	if ((lock->l_flags & LDLM_FL_FAIL_LOC) &&
-	    lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK)
-		OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE);
-
-	/* Copy hints/flags (e.g. LDLM_FL_DISCARD_DATA) from AST. */
-	lock_res_and_lock(lock);
-	lock->l_flags |= ldlm_flags_from_wire(dlm_req->lock_flags &
-					      LDLM_AST_FLAGS);
-	if (lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK) {
-		/* If somebody cancels lock and cache is already dropped,
-		 * or lock is failed before cp_ast received on client,
-		 * we can tell the server we have no lock. Otherwise, we
-		 * should send cancel after dropping the cache. */
-		if (((lock->l_flags & LDLM_FL_CANCELING) &&
-		    (lock->l_flags & LDLM_FL_BL_DONE)) ||
-		    (lock->l_flags & LDLM_FL_FAILED)) {
-			LDLM_DEBUG(lock, "callback on lock %#llx - lock disappeared\n",
-				   dlm_req->lock_handle[0].cookie);
-			unlock_res_and_lock(lock);
-			LDLM_LOCK_RELEASE(lock);
-			rc = ldlm_callback_reply(req, -EINVAL);
-			ldlm_callback_errmsg(req, "Operate on stale lock", rc,
-					     &dlm_req->lock_handle[0]);
-			return 0;
-		}
-		/* BL_AST locks are not needed in LRU.
-		 * Let ldlm_cancel_lru() be fast. */
-		ldlm_lock_remove_from_lru(lock);
-		lock->l_flags |= LDLM_FL_BL_AST;
-	}
-	unlock_res_and_lock(lock);
-
-	/* We want the ost thread to get this reply so that it can respond
-	 * to ost requests (write cache writeback) that might be triggered
-	 * in the callback.
-	 *
-	 * But we'd also like to be able to indicate in the reply that we're
-	 * cancelling right now, because it's unused, or have an intent result
-	 * in the reply, so we might have to push the responsibility for sending
-	 * the reply down into the AST handlers, alas. */
-
-	switch (lustre_msg_get_opc(req->rq_reqmsg)) {
-	case LDLM_BL_CALLBACK:
-		CDEBUG(D_INODE, "blocking ast\n");
-		req_capsule_extend(&req->rq_pill, &RQF_LDLM_BL_CALLBACK);
-		if (!(lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK)) {
-			rc = ldlm_callback_reply(req, 0);
-			if (req->rq_no_reply || rc)
-				ldlm_callback_errmsg(req, "Normal process", rc,
-						     &dlm_req->lock_handle[0]);
-		}
-		if (ldlm_bl_to_thread_lock(ns, &dlm_req->lock_desc, lock))
-			ldlm_handle_bl_callback(ns, &dlm_req->lock_desc, lock);
-		break;
-	case LDLM_CP_CALLBACK:
-		CDEBUG(D_INODE, "completion ast\n");
-		req_capsule_extend(&req->rq_pill, &RQF_LDLM_CP_CALLBACK);
-		ldlm_callback_reply(req, 0);
-		ldlm_handle_cp_callback(req, ns, dlm_req, lock);
-		break;
-	case LDLM_GL_CALLBACK:
-		CDEBUG(D_INODE, "glimpse ast\n");
-		req_capsule_extend(&req->rq_pill, &RQF_LDLM_GL_CALLBACK);
-		ldlm_handle_gl_callback(req, ns, dlm_req, lock);
-		break;
-	default:
-		LBUG();			 /* checked above */
-	}
-
-	return 0;
-}
-
-
-static struct ldlm_bl_work_item *ldlm_bl_get_work(struct ldlm_bl_pool *blp)
-{
-	struct ldlm_bl_work_item *blwi = NULL;
-	static unsigned int num_bl;
-
-	spin_lock(&blp->blp_lock);
-	/* process a request from the blp_list at least every blp_num_threads */
-	if (!list_empty(&blp->blp_list) &&
-	    (list_empty(&blp->blp_prio_list) || num_bl == 0))
-		blwi = list_entry(blp->blp_list.next,
-				      struct ldlm_bl_work_item, blwi_entry);
-	else
-		if (!list_empty(&blp->blp_prio_list))
-			blwi = list_entry(blp->blp_prio_list.next,
-					      struct ldlm_bl_work_item,
-					      blwi_entry);
-
-	if (blwi) {
-		if (++num_bl >= atomic_read(&blp->blp_num_threads))
-			num_bl = 0;
-		list_del(&blwi->blwi_entry);
-	}
-	spin_unlock(&blp->blp_lock);
-
-	return blwi;
-}
-
-/* This only contains temporary data until the thread starts */
-struct ldlm_bl_thread_data {
-	char			bltd_name[CFS_CURPROC_COMM_MAX];
-	struct ldlm_bl_pool	*bltd_blp;
-	struct completion	bltd_comp;
-	int			bltd_num;
-};
-
-static int ldlm_bl_thread_main(void *arg);
-
-static int ldlm_bl_thread_start(struct ldlm_bl_pool *blp)
-{
-	struct ldlm_bl_thread_data bltd = { .bltd_blp = blp };
-	struct task_struct *task;
-
-	init_completion(&bltd.bltd_comp);
-	bltd.bltd_num = atomic_read(&blp->blp_num_threads);
-	snprintf(bltd.bltd_name, sizeof(bltd.bltd_name),
-		"ldlm_bl_%02d", bltd.bltd_num);
-	task = kthread_run(ldlm_bl_thread_main, &bltd, "%s", bltd.bltd_name);
-	if (IS_ERR(task)) {
-		CERROR("cannot start LDLM thread ldlm_bl_%02d: rc %ld\n",
-		       atomic_read(&blp->blp_num_threads), PTR_ERR(task));
-		return PTR_ERR(task);
-	}
-	wait_for_completion(&bltd.bltd_comp);
-
-	return 0;
-}
-
-/**
- * Main blocking requests processing thread.
- *
- * Callers put locks into its queue by calling ldlm_bl_to_thread.
- * This thread in the end ends up doing actual call to ->l_blocking_ast
- * for queued locks.
- */
-static int ldlm_bl_thread_main(void *arg)
-{
-	struct ldlm_bl_pool *blp;
-
-	{
-		struct ldlm_bl_thread_data *bltd = arg;
-
-		blp = bltd->bltd_blp;
-
-		atomic_inc(&blp->blp_num_threads);
-		atomic_inc(&blp->blp_busy_threads);
-
-		complete(&bltd->bltd_comp);
-		/* cannot use bltd after this, it is only on caller's stack */
-	}
-
-	while (1) {
-		struct l_wait_info lwi = { 0 };
-		struct ldlm_bl_work_item *blwi = NULL;
-		int busy;
-
-		blwi = ldlm_bl_get_work(blp);
-
-		if (blwi == NULL) {
-			atomic_dec(&blp->blp_busy_threads);
-			l_wait_event_exclusive(blp->blp_waitq,
-					 (blwi = ldlm_bl_get_work(blp)) != NULL,
-					 &lwi);
-			busy = atomic_inc_return(&blp->blp_busy_threads);
-		} else {
-			busy = atomic_read(&blp->blp_busy_threads);
-		}
-
-		if (blwi->blwi_ns == NULL)
-			/* added by ldlm_cleanup() */
-			break;
-
-		/* Not fatal if racy and have a few too many threads */
-		if (unlikely(busy < blp->blp_max_threads &&
-			     busy >= atomic_read(&blp->blp_num_threads) &&
-			     !blwi->blwi_mem_pressure))
-			/* discard the return value, we tried */
-			ldlm_bl_thread_start(blp);
-
-		if (blwi->blwi_mem_pressure)
-			memory_pressure_set();
-
-		if (blwi->blwi_count) {
-			int count;
-			/* The special case when we cancel locks in LRU
-			 * asynchronously, we pass the list of locks here.
-			 * Thus locks are marked LDLM_FL_CANCELING, but NOT
-			 * canceled locally yet. */
-			count = ldlm_cli_cancel_list_local(&blwi->blwi_head,
-							   blwi->blwi_count,
-							   LCF_BL_AST);
-			ldlm_cli_cancel_list(&blwi->blwi_head, count, NULL,
-					     blwi->blwi_flags);
-		} else {
-			ldlm_handle_bl_callback(blwi->blwi_ns, &blwi->blwi_ld,
-						blwi->blwi_lock);
-		}
-		if (blwi->blwi_mem_pressure)
-			memory_pressure_clr();
-
-		if (blwi->blwi_flags & LCF_ASYNC)
-			kfree(blwi);
-		else
-			complete(&blwi->blwi_comp);
-	}
-
-	atomic_dec(&blp->blp_busy_threads);
-	atomic_dec(&blp->blp_num_threads);
-	complete(&blp->blp_comp);
-	return 0;
-}
-
-
-static int ldlm_setup(void);
-static int ldlm_cleanup(void);
-
-int ldlm_get_ref(void)
-{
-	int rc = 0;
-
-	mutex_lock(&ldlm_ref_mutex);
-	if (++ldlm_refcount == 1) {
-		rc = ldlm_setup();
-		if (rc)
-			ldlm_refcount--;
-	}
-	mutex_unlock(&ldlm_ref_mutex);
-
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_get_ref);
-
-void ldlm_put_ref(void)
-{
-	mutex_lock(&ldlm_ref_mutex);
-	if (ldlm_refcount == 1) {
-		int rc = ldlm_cleanup();
-
-		if (rc)
-			CERROR("ldlm_cleanup failed: %d\n", rc);
-		else
-			ldlm_refcount--;
-	} else {
-		ldlm_refcount--;
-	}
-	mutex_unlock(&ldlm_ref_mutex);
-}
-EXPORT_SYMBOL(ldlm_put_ref);
-
-/*
- * Export handle<->lock hash operations.
- */
-static unsigned
-ldlm_export_lock_hash(struct cfs_hash *hs, const void *key, unsigned mask)
-{
-	return cfs_hash_u64_hash(((struct lustre_handle *)key)->cookie, mask);
-}
-
-static void *
-ldlm_export_lock_key(struct hlist_node *hnode)
-{
-	struct ldlm_lock *lock;
-
-	lock = hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
-	return &lock->l_remote_handle;
-}
-
-static void
-ldlm_export_lock_keycpy(struct hlist_node *hnode, void *key)
-{
-	struct ldlm_lock     *lock;
-
-	lock = hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
-	lock->l_remote_handle = *(struct lustre_handle *)key;
-}
-
-static int
-ldlm_export_lock_keycmp(const void *key, struct hlist_node *hnode)
-{
-	return lustre_handle_equal(ldlm_export_lock_key(hnode), key);
-}
-
-static void *
-ldlm_export_lock_object(struct hlist_node *hnode)
-{
-	return hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
-}
-
-static void
-ldlm_export_lock_get(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct ldlm_lock *lock;
-
-	lock = hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
-	LDLM_LOCK_GET(lock);
-}
-
-static void
-ldlm_export_lock_put(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct ldlm_lock *lock;
-
-	lock = hlist_entry(hnode, struct ldlm_lock, l_exp_hash);
-	LDLM_LOCK_RELEASE(lock);
-}
-
-static cfs_hash_ops_t ldlm_export_lock_ops = {
-	.hs_hash	= ldlm_export_lock_hash,
-	.hs_key	 = ldlm_export_lock_key,
-	.hs_keycmp      = ldlm_export_lock_keycmp,
-	.hs_keycpy      = ldlm_export_lock_keycpy,
-	.hs_object      = ldlm_export_lock_object,
-	.hs_get	 = ldlm_export_lock_get,
-	.hs_put	 = ldlm_export_lock_put,
-	.hs_put_locked  = ldlm_export_lock_put,
-};
-
-int ldlm_init_export(struct obd_export *exp)
-{
-	int rc;
-
-	exp->exp_lock_hash =
-		cfs_hash_create(obd_uuid2str(&exp->exp_client_uuid),
-				HASH_EXP_LOCK_CUR_BITS,
-				HASH_EXP_LOCK_MAX_BITS,
-				HASH_EXP_LOCK_BKT_BITS, 0,
-				CFS_HASH_MIN_THETA, CFS_HASH_MAX_THETA,
-				&ldlm_export_lock_ops,
-				CFS_HASH_DEFAULT | CFS_HASH_REHASH_KEY |
-				CFS_HASH_NBLK_CHANGE);
-
-	if (!exp->exp_lock_hash)
-		return -ENOMEM;
-
-	rc = ldlm_init_flock_export(exp);
-	if (rc)
-		goto err;
-
-	return 0;
-err:
-	ldlm_destroy_export(exp);
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_init_export);
-
-void ldlm_destroy_export(struct obd_export *exp)
-{
-	cfs_hash_putref(exp->exp_lock_hash);
-	exp->exp_lock_hash = NULL;
-
-	ldlm_destroy_flock_export(exp);
-}
-EXPORT_SYMBOL(ldlm_destroy_export);
-
-extern unsigned int ldlm_cancel_unused_locks_before_replay;
-
-static ssize_t cancel_unused_locks_before_replay_show(struct kobject *kobj,
-						      struct attribute *attr,
-						      char *buf)
-{
-	return sprintf(buf, "%d\n", ldlm_cancel_unused_locks_before_replay);
-}
-static ssize_t cancel_unused_locks_before_replay_store(struct kobject *kobj,
-						       struct attribute *attr,
-						       const char *buffer,
-						       size_t count)
-{
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	ldlm_cancel_unused_locks_before_replay = val;
-
-	return count;
-}
-LUSTRE_RW_ATTR(cancel_unused_locks_before_replay);
-
-/* These are for root of /sys/fs/lustre/ldlm */
-static struct attribute *ldlm_attrs[] = {
-	&lustre_attr_cancel_unused_locks_before_replay.attr,
-	NULL,
-};
-
-static struct attribute_group ldlm_attr_group = {
-	.attrs = ldlm_attrs,
-};
-
-static int ldlm_setup(void)
-{
-	static struct ptlrpc_service_conf	conf;
-	struct ldlm_bl_pool			*blp = NULL;
-	int rc = 0;
-	int i;
-
-	if (ldlm_state != NULL)
-		return -EALREADY;
-
-	ldlm_state = kzalloc(sizeof(*ldlm_state), GFP_NOFS);
-	if (!ldlm_state)
-		return -ENOMEM;
-
-	ldlm_kobj = kobject_create_and_add("ldlm", lustre_kobj);
-	if (!ldlm_kobj) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = sysfs_create_group(ldlm_kobj, &ldlm_attr_group);
-	if (rc)
-		goto out;
-
-	ldlm_ns_kset = kset_create_and_add("namespaces", NULL, ldlm_kobj);
-	if (!ldlm_ns_kset) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	ldlm_svc_kset = kset_create_and_add("services", NULL, ldlm_kobj);
-	if (!ldlm_svc_kset) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = ldlm_debugfs_setup();
-	if (rc != 0)
-		goto out;
-
-	memset(&conf, 0, sizeof(conf));
-	conf = (typeof(conf)) {
-		.psc_name		= "ldlm_cbd",
-		.psc_watchdog_factor	= 2,
-		.psc_buf		= {
-			.bc_nbufs		= LDLM_CLIENT_NBUFS,
-			.bc_buf_size		= LDLM_BUFSIZE,
-			.bc_req_max_size	= LDLM_MAXREQSIZE,
-			.bc_rep_max_size	= LDLM_MAXREPSIZE,
-			.bc_req_portal		= LDLM_CB_REQUEST_PORTAL,
-			.bc_rep_portal		= LDLM_CB_REPLY_PORTAL,
-		},
-		.psc_thr		= {
-			.tc_thr_name		= "ldlm_cb",
-			.tc_thr_factor		= LDLM_THR_FACTOR,
-			.tc_nthrs_init		= LDLM_NTHRS_INIT,
-			.tc_nthrs_base		= LDLM_NTHRS_BASE,
-			.tc_nthrs_max		= LDLM_NTHRS_MAX,
-			.tc_nthrs_user		= ldlm_num_threads,
-			.tc_cpu_affinity	= 1,
-			.tc_ctx_tags		= LCT_MD_THREAD | LCT_DT_THREAD,
-		},
-		.psc_cpt		= {
-			.cc_pattern		= ldlm_cpts,
-		},
-		.psc_ops		= {
-			.so_req_handler		= ldlm_callback_handler,
-		},
-	};
-	ldlm_state->ldlm_cb_service =
-			ptlrpc_register_service(&conf, ldlm_svc_kset,
-						ldlm_svc_debugfs_dir);
-	if (IS_ERR(ldlm_state->ldlm_cb_service)) {
-		CERROR("failed to start service\n");
-		rc = PTR_ERR(ldlm_state->ldlm_cb_service);
-		ldlm_state->ldlm_cb_service = NULL;
-		goto out;
-	}
-
-
-	blp = kzalloc(sizeof(*blp), GFP_NOFS);
-	if (!blp) {
-		rc = -ENOMEM;
-		goto out;
-	}
-	ldlm_state->ldlm_bl_pool = blp;
-
-	spin_lock_init(&blp->blp_lock);
-	INIT_LIST_HEAD(&blp->blp_list);
-	INIT_LIST_HEAD(&blp->blp_prio_list);
-	init_waitqueue_head(&blp->blp_waitq);
-	atomic_set(&blp->blp_num_threads, 0);
-	atomic_set(&blp->blp_busy_threads, 0);
-
-	if (ldlm_num_threads == 0) {
-		blp->blp_min_threads = LDLM_NTHRS_INIT;
-		blp->blp_max_threads = LDLM_NTHRS_MAX;
-	} else {
-		blp->blp_min_threads = blp->blp_max_threads =
-			min_t(int, LDLM_NTHRS_MAX, max_t(int, LDLM_NTHRS_INIT,
-							 ldlm_num_threads));
-	}
-
-	for (i = 0; i < blp->blp_min_threads; i++) {
-		rc = ldlm_bl_thread_start(blp);
-		if (rc < 0)
-			goto out;
-	}
-
-	rc = ldlm_pools_init();
-	if (rc) {
-		CERROR("Failed to initialize LDLM pools: %d\n", rc);
-		goto out;
-	}
-	return 0;
-
- out:
-	ldlm_cleanup();
-	return rc;
-}
-
-static int ldlm_cleanup(void)
-{
-	if (!list_empty(ldlm_namespace_list(LDLM_NAMESPACE_SERVER)) ||
-	    !list_empty(ldlm_namespace_list(LDLM_NAMESPACE_CLIENT))) {
-		CERROR("ldlm still has namespaces; clean these up first.\n");
-		ldlm_dump_all_namespaces(LDLM_NAMESPACE_SERVER, D_DLMTRACE);
-		ldlm_dump_all_namespaces(LDLM_NAMESPACE_CLIENT, D_DLMTRACE);
-		return -EBUSY;
-	}
-
-	ldlm_pools_fini();
-
-	if (ldlm_state->ldlm_bl_pool != NULL) {
-		struct ldlm_bl_pool *blp = ldlm_state->ldlm_bl_pool;
-
-		while (atomic_read(&blp->blp_num_threads) > 0) {
-			struct ldlm_bl_work_item blwi = { .blwi_ns = NULL };
-
-			init_completion(&blp->blp_comp);
-
-			spin_lock(&blp->blp_lock);
-			list_add_tail(&blwi.blwi_entry, &blp->blp_list);
-			wake_up(&blp->blp_waitq);
-			spin_unlock(&blp->blp_lock);
-
-			wait_for_completion(&blp->blp_comp);
-		}
-
-		kfree(blp);
-	}
-
-	if (ldlm_state->ldlm_cb_service != NULL)
-		ptlrpc_unregister_service(ldlm_state->ldlm_cb_service);
-
-	if (ldlm_ns_kset)
-		kset_unregister(ldlm_ns_kset);
-	if (ldlm_svc_kset)
-		kset_unregister(ldlm_svc_kset);
-	if (ldlm_kobj)
-		kobject_put(ldlm_kobj);
-
-	ldlm_debugfs_cleanup();
-
-	kfree(ldlm_state);
-	ldlm_state = NULL;
-
-	return 0;
-}
-
-int ldlm_init(void)
-{
-	mutex_init(&ldlm_ref_mutex);
-	mutex_init(ldlm_namespace_lock(LDLM_NAMESPACE_SERVER));
-	mutex_init(ldlm_namespace_lock(LDLM_NAMESPACE_CLIENT));
-	ldlm_resource_slab = kmem_cache_create("ldlm_resources",
-					       sizeof(struct ldlm_resource), 0,
-					       SLAB_HWCACHE_ALIGN, NULL);
-	if (ldlm_resource_slab == NULL)
-		return -ENOMEM;
-
-	ldlm_lock_slab = kmem_cache_create("ldlm_locks",
-			      sizeof(struct ldlm_lock), 0,
-			      SLAB_HWCACHE_ALIGN | SLAB_DESTROY_BY_RCU, NULL);
-	if (ldlm_lock_slab == NULL) {
-		kmem_cache_destroy(ldlm_resource_slab);
-		return -ENOMEM;
-	}
-
-	ldlm_interval_slab = kmem_cache_create("interval_node",
-					sizeof(struct ldlm_interval),
-					0, SLAB_HWCACHE_ALIGN, NULL);
-	if (ldlm_interval_slab == NULL) {
-		kmem_cache_destroy(ldlm_resource_slab);
-		kmem_cache_destroy(ldlm_lock_slab);
-		return -ENOMEM;
-	}
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-	class_export_dump_hook = ldlm_dump_export_locks;
-#endif
-	return 0;
-}
-
-void ldlm_exit(void)
-{
-	if (ldlm_refcount)
-		CERROR("ldlm_refcount is %d in ldlm_exit!\n", ldlm_refcount);
-	kmem_cache_destroy(ldlm_resource_slab);
-	/* ldlm_lock_put() use RCU to call ldlm_lock_free, so need call
-	 * synchronize_rcu() to wait a grace period elapsed, so that
-	 * ldlm_lock_free() get a chance to be called. */
-	synchronize_rcu();
-	kmem_cache_destroy(ldlm_lock_slab);
-	kmem_cache_destroy(ldlm_interval_slab);
-}
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_plain.c b/drivers/staging/lustre/lustre/ldlm/ldlm_plain.c
deleted file mode 100644
index a1fe2c161e38..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_plain.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/ldlm_plain.c
- *
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-/**
- * This file contains implementation of PLAIN lock type.
- *
- * PLAIN locks are the simplest form of LDLM locking, and are used when
- * there only needs to be a single lock on a resource. This avoids some
- * of the complexity of EXTENT and IBITS lock types, but doesn't allow
- * different "parts" of a resource to be locked concurrently.  Example
- * use cases for PLAIN locks include locking of MGS configuration logs
- * and (as of Lustre 2.4) quota records.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../include/lustre_dlm.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_lib.h"
-
-#include "ldlm_internal.h"
-
-
-void ldlm_plain_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy,
-				     ldlm_policy_data_t *lpolicy)
-{
-	/* No policy for plain locks */
-}
-
-void ldlm_plain_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
-				     ldlm_wire_policy_data_t *wpolicy)
-{
-	/* No policy for plain locks */
-}
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
deleted file mode 100644
index c234acb85f10..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ /dev/null
@@ -1,1495 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/ldlm_pool.c
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- */
-
-/*
- * Idea of this code is rather simple. Each second, for each server namespace
- * we have SLV - server lock volume which is calculated on current number of
- * granted locks, grant speed for past period, etc - that is, locking load.
- * This SLV number may be thought as a flow definition for simplicity. It is
- * sent to clients with each occasion to let them know what is current load
- * situation on the server. By default, at the beginning, SLV on server is
- * set max value which is calculated as the following: allow to one client
- * have all locks of limit ->pl_limit for 10h.
- *
- * Next, on clients, number of cached locks is not limited artificially in any
- * way as it was before. Instead, client calculates CLV, that is, client lock
- * volume for each lock and compares it with last SLV from the server. CLV is
- * calculated as the number of locks in LRU * lock live time in seconds. If
- * CLV > SLV - lock is canceled.
- *
- * Client has LVF, that is, lock volume factor which regulates how much
- * sensitive client should be about last SLV from server. The higher LVF is the
- * more locks will be canceled on client. Default value for it is 1. Setting LVF
- * to 2 means that client will cancel locks 2 times faster.
- *
- * Locks on a client will be canceled more intensively in these cases:
- * (1) if SLV is smaller, that is, load is higher on the server;
- * (2) client has a lot of locks (the more locks are held by client, the bigger
- *     chances that some of them should be canceled);
- * (3) client has old locks (taken some time ago);
- *
- * Thus, according to flow paradigm that we use for better understanding SLV,
- * CLV is the volume of particle in flow described by SLV. According to this,
- * if flow is getting thinner, more and more particles become outside of it and
- * as particles are locks, they should be canceled.
- *
- * General idea of this belongs to Vitaly Fertman (vitaly@clusterfs.com).
- * Andreas Dilger (adilger@clusterfs.com) proposed few nice ideas like using
- * LVF and many cleanups. Flow definition to allow more easy understanding of
- * the logic belongs to Nikita Danilov (nikita@clusterfs.com) as well as many
- * cleanups and fixes. And design and implementation are done by Yury Umanets
- * (umka@clusterfs.com).
- *
- * Glossary for terms used:
- *
- * pl_limit - Number of allowed locks in pool. Applies to server and client
- * side (tunable);
- *
- * pl_granted - Number of granted locks (calculated);
- * pl_grant_rate - Number of granted locks for last T (calculated);
- * pl_cancel_rate - Number of canceled locks for last T (calculated);
- * pl_grant_speed - Grant speed (GR - CR) for last T (calculated);
- * pl_grant_plan - Planned number of granted locks for next T (calculated);
- * pl_server_lock_volume - Current server lock volume (calculated);
- *
- * As it may be seen from list above, we have few possible tunables which may
- * affect behavior much. They all may be modified via sysfs. However, they also
- * give a possibility for constructing few pre-defined behavior policies. If
- * none of predefines is suitable for a working pattern being used, new one may
- * be "constructed" via sysfs tunables.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../include/lustre_dlm.h"
-#include "../include/cl_object.h"
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "ldlm_internal.h"
-
-
-/*
- * 50 ldlm locks for 1MB of RAM.
- */
-#define LDLM_POOL_HOST_L ((NUM_CACHEPAGES >> (20 - PAGE_CACHE_SHIFT)) * 50)
-
-/*
- * Maximal possible grant step plan in %.
- */
-#define LDLM_POOL_MAX_GSP (30)
-
-/*
- * Minimal possible grant step plan in %.
- */
-#define LDLM_POOL_MIN_GSP (1)
-
-/*
- * This controls the speed of reaching LDLM_POOL_MAX_GSP
- * with increasing thread period.
- */
-#define LDLM_POOL_GSP_STEP_SHIFT (2)
-
-/*
- * LDLM_POOL_GSP% of all locks is default GP.
- */
-#define LDLM_POOL_GP(L)   (((L) * LDLM_POOL_MAX_GSP) / 100)
-
-/*
- * Max age for locks on clients.
- */
-#define LDLM_POOL_MAX_AGE (36000)
-
-/*
- * The granularity of SLV calculation.
- */
-#define LDLM_POOL_SLV_SHIFT (10)
-
-static inline __u64 dru(__u64 val, __u32 shift, int round_up)
-{
-	return (val + (round_up ? (1 << shift) - 1 : 0)) >> shift;
-}
-
-static inline __u64 ldlm_pool_slv_max(__u32 L)
-{
-	/*
-	 * Allow to have all locks for 1 client for 10 hrs.
-	 * Formula is the following: limit * 10h / 1 client.
-	 */
-	__u64 lim = (__u64)L *  LDLM_POOL_MAX_AGE / 1;
-	return lim;
-}
-
-static inline __u64 ldlm_pool_slv_min(__u32 L)
-{
-	return 1;
-}
-
-enum {
-	LDLM_POOL_FIRST_STAT = 0,
-	LDLM_POOL_GRANTED_STAT = LDLM_POOL_FIRST_STAT,
-	LDLM_POOL_GRANT_STAT,
-	LDLM_POOL_CANCEL_STAT,
-	LDLM_POOL_GRANT_RATE_STAT,
-	LDLM_POOL_CANCEL_RATE_STAT,
-	LDLM_POOL_GRANT_PLAN_STAT,
-	LDLM_POOL_SLV_STAT,
-	LDLM_POOL_SHRINK_REQTD_STAT,
-	LDLM_POOL_SHRINK_FREED_STAT,
-	LDLM_POOL_RECALC_STAT,
-	LDLM_POOL_TIMING_STAT,
-	LDLM_POOL_LAST_STAT
-};
-
-static inline struct ldlm_namespace *ldlm_pl2ns(struct ldlm_pool *pl)
-{
-	return container_of(pl, struct ldlm_namespace, ns_pool);
-}
-
-/**
- * Calculates suggested grant_step in % of available locks for passed
- * \a period. This is later used in grant_plan calculations.
- */
-static inline int ldlm_pool_t2gsp(unsigned int t)
-{
-	/*
-	 * This yields 1% grant step for anything below LDLM_POOL_GSP_STEP
-	 * and up to 30% for anything higher than LDLM_POOL_GSP_STEP.
-	 *
-	 * How this will affect execution is the following:
-	 *
-	 * - for thread period 1s we will have grant_step 1% which good from
-	 * pov of taking some load off from server and push it out to clients.
-	 * This is like that because 1% for grant_step means that server will
-	 * not allow clients to get lots of locks in short period of time and
-	 * keep all old locks in their caches. Clients will always have to
-	 * get some locks back if they want to take some new;
-	 *
-	 * - for thread period 10s (which is default) we will have 23% which
-	 * means that clients will have enough of room to take some new locks
-	 * without getting some back. All locks from this 23% which were not
-	 * taken by clients in current period will contribute in SLV growing.
-	 * SLV growing means more locks cached on clients until limit or grant
-	 * plan is reached.
-	 */
-	return LDLM_POOL_MAX_GSP -
-		((LDLM_POOL_MAX_GSP - LDLM_POOL_MIN_GSP) >>
-		 (t >> LDLM_POOL_GSP_STEP_SHIFT));
-}
-
-/**
- * Recalculates next grant limit on passed \a pl.
- *
- * \pre ->pl_lock is locked.
- */
-static void ldlm_pool_recalc_grant_plan(struct ldlm_pool *pl)
-{
-	int granted, grant_step, limit;
-
-	limit = ldlm_pool_get_limit(pl);
-	granted = atomic_read(&pl->pl_granted);
-
-	grant_step = ldlm_pool_t2gsp(pl->pl_recalc_period);
-	grant_step = ((limit - granted) * grant_step) / 100;
-	pl->pl_grant_plan = granted + grant_step;
-	limit = (limit * 5) >> 2;
-	if (pl->pl_grant_plan > limit)
-		pl->pl_grant_plan = limit;
-}
-
-/**
- * Recalculates next SLV on passed \a pl.
- *
- * \pre ->pl_lock is locked.
- */
-static void ldlm_pool_recalc_slv(struct ldlm_pool *pl)
-{
-	int granted;
-	int grant_plan;
-	int round_up;
-	__u64 slv;
-	__u64 slv_factor;
-	__u64 grant_usage;
-	__u32 limit;
-
-	slv = pl->pl_server_lock_volume;
-	grant_plan = pl->pl_grant_plan;
-	limit = ldlm_pool_get_limit(pl);
-	granted = atomic_read(&pl->pl_granted);
-	round_up = granted < limit;
-
-	grant_usage = max_t(int, limit - (granted - grant_plan), 1);
-
-	/*
-	 * Find out SLV change factor which is the ratio of grant usage
-	 * from limit. SLV changes as fast as the ratio of grant plan
-	 * consumption. The more locks from grant plan are not consumed
-	 * by clients in last interval (idle time), the faster grows
-	 * SLV. And the opposite, the more grant plan is over-consumed
-	 * (load time) the faster drops SLV.
-	 */
-	slv_factor = grant_usage << LDLM_POOL_SLV_SHIFT;
-	do_div(slv_factor, limit);
-	slv = slv * slv_factor;
-	slv = dru(slv, LDLM_POOL_SLV_SHIFT, round_up);
-
-	if (slv > ldlm_pool_slv_max(limit))
-		slv = ldlm_pool_slv_max(limit);
-	else if (slv < ldlm_pool_slv_min(limit))
-		slv = ldlm_pool_slv_min(limit);
-
-	pl->pl_server_lock_volume = slv;
-}
-
-/**
- * Recalculates next stats on passed \a pl.
- *
- * \pre ->pl_lock is locked.
- */
-static void ldlm_pool_recalc_stats(struct ldlm_pool *pl)
-{
-	int grant_plan = pl->pl_grant_plan;
-	__u64 slv = pl->pl_server_lock_volume;
-	int granted = atomic_read(&pl->pl_granted);
-	int grant_rate = atomic_read(&pl->pl_grant_rate);
-	int cancel_rate = atomic_read(&pl->pl_cancel_rate);
-
-	lprocfs_counter_add(pl->pl_stats, LDLM_POOL_SLV_STAT,
-			    slv);
-	lprocfs_counter_add(pl->pl_stats, LDLM_POOL_GRANTED_STAT,
-			    granted);
-	lprocfs_counter_add(pl->pl_stats, LDLM_POOL_GRANT_RATE_STAT,
-			    grant_rate);
-	lprocfs_counter_add(pl->pl_stats, LDLM_POOL_GRANT_PLAN_STAT,
-			    grant_plan);
-	lprocfs_counter_add(pl->pl_stats, LDLM_POOL_CANCEL_RATE_STAT,
-			    cancel_rate);
-}
-
-/**
- * Sets current SLV into obd accessible via ldlm_pl2ns(pl)->ns_obd.
- */
-static void ldlm_srv_pool_push_slv(struct ldlm_pool *pl)
-{
-	struct obd_device *obd;
-
-	/*
-	 * Set new SLV in obd field for using it later without accessing the
-	 * pool. This is required to avoid race between sending reply to client
-	 * with new SLV and cleanup server stack in which we can't guarantee
-	 * that namespace is still alive. We know only that obd is alive as
-	 * long as valid export is alive.
-	 */
-	obd = ldlm_pl2ns(pl)->ns_obd;
-	LASSERT(obd != NULL);
-	write_lock(&obd->obd_pool_lock);
-	obd->obd_pool_slv = pl->pl_server_lock_volume;
-	write_unlock(&obd->obd_pool_lock);
-}
-
-/**
- * Recalculates all pool fields on passed \a pl.
- *
- * \pre ->pl_lock is not locked.
- */
-static int ldlm_srv_pool_recalc(struct ldlm_pool *pl)
-{
-	time_t recalc_interval_sec;
-
-	recalc_interval_sec = get_seconds() - pl->pl_recalc_time;
-	if (recalc_interval_sec < pl->pl_recalc_period)
-		return 0;
-
-	spin_lock(&pl->pl_lock);
-	recalc_interval_sec = get_seconds() - pl->pl_recalc_time;
-	if (recalc_interval_sec < pl->pl_recalc_period) {
-		spin_unlock(&pl->pl_lock);
-		return 0;
-	}
-	/*
-	 * Recalc SLV after last period. This should be done
-	 * _before_ recalculating new grant plan.
-	 */
-	ldlm_pool_recalc_slv(pl);
-
-	/*
-	 * Make sure that pool informed obd of last SLV changes.
-	 */
-	ldlm_srv_pool_push_slv(pl);
-
-	/*
-	 * Update grant_plan for new period.
-	 */
-	ldlm_pool_recalc_grant_plan(pl);
-
-	pl->pl_recalc_time = get_seconds();
-	lprocfs_counter_add(pl->pl_stats, LDLM_POOL_TIMING_STAT,
-			    recalc_interval_sec);
-	spin_unlock(&pl->pl_lock);
-	return 0;
-}
-
-/**
- * This function is used on server side as main entry point for memory
- * pressure handling. It decreases SLV on \a pl according to passed
- * \a nr and \a gfp_mask.
- *
- * Our goal here is to decrease SLV such a way that clients hold \a nr
- * locks smaller in next 10h.
- */
-static int ldlm_srv_pool_shrink(struct ldlm_pool *pl,
-				int nr, gfp_t gfp_mask)
-{
-	__u32 limit;
-
-	/*
-	 * VM is asking how many entries may be potentially freed.
-	 */
-	if (nr == 0)
-		return atomic_read(&pl->pl_granted);
-
-	/*
-	 * Client already canceled locks but server is already in shrinker
-	 * and can't cancel anything. Let's catch this race.
-	 */
-	if (atomic_read(&pl->pl_granted) == 0)
-		return 0;
-
-	spin_lock(&pl->pl_lock);
-
-	/*
-	 * We want shrinker to possibly cause cancellation of @nr locks from
-	 * clients or grant approximately @nr locks smaller next intervals.
-	 *
-	 * This is why we decreased SLV by @nr. This effect will only be as
-	 * long as one re-calc interval (1s these days) and this should be
-	 * enough to pass this decreased SLV to all clients. On next recalc
-	 * interval pool will either increase SLV if locks load is not high
-	 * or will keep on same level or even decrease again, thus, shrinker
-	 * decreased SLV will affect next recalc intervals and this way will
-	 * make locking load lower.
-	 */
-	if (nr < pl->pl_server_lock_volume) {
-		pl->pl_server_lock_volume = pl->pl_server_lock_volume - nr;
-	} else {
-		limit = ldlm_pool_get_limit(pl);
-		pl->pl_server_lock_volume = ldlm_pool_slv_min(limit);
-	}
-
-	/*
-	 * Make sure that pool informed obd of last SLV changes.
-	 */
-	ldlm_srv_pool_push_slv(pl);
-	spin_unlock(&pl->pl_lock);
-
-	/*
-	 * We did not really free any memory here so far, it only will be
-	 * freed later may be, so that we return 0 to not confuse VM.
-	 */
-	return 0;
-}
-
-/**
- * Setup server side pool \a pl with passed \a limit.
- */
-static int ldlm_srv_pool_setup(struct ldlm_pool *pl, int limit)
-{
-	struct obd_device *obd;
-
-	obd = ldlm_pl2ns(pl)->ns_obd;
-	LASSERT(obd != NULL && obd != LP_POISON);
-	LASSERT(obd->obd_type != LP_POISON);
-	write_lock(&obd->obd_pool_lock);
-	obd->obd_pool_limit = limit;
-	write_unlock(&obd->obd_pool_lock);
-
-	ldlm_pool_set_limit(pl, limit);
-	return 0;
-}
-
-/**
- * Sets SLV and Limit from ldlm_pl2ns(pl)->ns_obd tp passed \a pl.
- */
-static void ldlm_cli_pool_pop_slv(struct ldlm_pool *pl)
-{
-	struct obd_device *obd;
-
-	/*
-	 * Get new SLV and Limit from obd which is updated with coming
-	 * RPCs.
-	 */
-	obd = ldlm_pl2ns(pl)->ns_obd;
-	LASSERT(obd != NULL);
-	read_lock(&obd->obd_pool_lock);
-	pl->pl_server_lock_volume = obd->obd_pool_slv;
-	ldlm_pool_set_limit(pl, obd->obd_pool_limit);
-	read_unlock(&obd->obd_pool_lock);
-}
-
-/**
- * Recalculates client size pool \a pl according to current SLV and Limit.
- */
-static int ldlm_cli_pool_recalc(struct ldlm_pool *pl)
-{
-	time_t recalc_interval_sec;
-	int ret;
-
-	recalc_interval_sec = get_seconds() - pl->pl_recalc_time;
-	if (recalc_interval_sec < pl->pl_recalc_period)
-		return 0;
-
-	spin_lock(&pl->pl_lock);
-	/*
-	 * Check if we need to recalc lists now.
-	 */
-	recalc_interval_sec = get_seconds() - pl->pl_recalc_time;
-	if (recalc_interval_sec < pl->pl_recalc_period) {
-		spin_unlock(&pl->pl_lock);
-		return 0;
-	}
-
-	/*
-	 * Make sure that pool knows last SLV and Limit from obd.
-	 */
-	ldlm_cli_pool_pop_slv(pl);
-
-	spin_unlock(&pl->pl_lock);
-
-	/*
-	 * Do not cancel locks in case lru resize is disabled for this ns.
-	 */
-	if (!ns_connect_lru_resize(ldlm_pl2ns(pl))) {
-		ret = 0;
-		goto out;
-	}
-
-	/*
-	 * In the time of canceling locks on client we do not need to maintain
-	 * sharp timing, we only want to cancel locks asap according to new SLV.
-	 * It may be called when SLV has changed much, this is why we do not
-	 * take into account pl->pl_recalc_time here.
-	 */
-	ret = ldlm_cancel_lru(ldlm_pl2ns(pl), 0, LCF_ASYNC, LDLM_CANCEL_LRUR);
-
-out:
-	spin_lock(&pl->pl_lock);
-	/*
-	 * Time of LRU resizing might be longer than period,
-	 * so update after LRU resizing rather than before it.
-	 */
-	pl->pl_recalc_time = get_seconds();
-	lprocfs_counter_add(pl->pl_stats, LDLM_POOL_TIMING_STAT,
-			    recalc_interval_sec);
-	spin_unlock(&pl->pl_lock);
-	return ret;
-}
-
-/**
- * This function is main entry point for memory pressure handling on client
- * side.  Main goal of this function is to cancel some number of locks on
- * passed \a pl according to \a nr and \a gfp_mask.
- */
-static int ldlm_cli_pool_shrink(struct ldlm_pool *pl,
-				int nr, gfp_t gfp_mask)
-{
-	struct ldlm_namespace *ns;
-	int unused;
-
-	ns = ldlm_pl2ns(pl);
-
-	/*
-	 * Do not cancel locks in case lru resize is disabled for this ns.
-	 */
-	if (!ns_connect_lru_resize(ns))
-		return 0;
-
-	/*
-	 * Make sure that pool knows last SLV and Limit from obd.
-	 */
-	ldlm_cli_pool_pop_slv(pl);
-
-	spin_lock(&ns->ns_lock);
-	unused = ns->ns_nr_unused;
-	spin_unlock(&ns->ns_lock);
-
-	if (nr == 0)
-		return (unused / 100) * sysctl_vfs_cache_pressure;
-	else
-		return ldlm_cancel_lru(ns, nr, LCF_ASYNC, LDLM_CANCEL_SHRINK);
-}
-
-static const struct ldlm_pool_ops ldlm_srv_pool_ops = {
-	.po_recalc = ldlm_srv_pool_recalc,
-	.po_shrink = ldlm_srv_pool_shrink,
-	.po_setup  = ldlm_srv_pool_setup
-};
-
-static const struct ldlm_pool_ops ldlm_cli_pool_ops = {
-	.po_recalc = ldlm_cli_pool_recalc,
-	.po_shrink = ldlm_cli_pool_shrink
-};
-
-/**
- * Pool recalc wrapper. Will call either client or server pool recalc callback
- * depending what pool \a pl is used.
- */
-int ldlm_pool_recalc(struct ldlm_pool *pl)
-{
-	time_t recalc_interval_sec;
-	int count;
-
-	recalc_interval_sec = get_seconds() - pl->pl_recalc_time;
-	if (recalc_interval_sec <= 0)
-		goto recalc;
-
-	spin_lock(&pl->pl_lock);
-	if (recalc_interval_sec > 0) {
-		/*
-		 * Update pool statistics every 1s.
-		 */
-		ldlm_pool_recalc_stats(pl);
-
-		/*
-		 * Zero out all rates and speed for the last period.
-		 */
-		atomic_set(&pl->pl_grant_rate, 0);
-		atomic_set(&pl->pl_cancel_rate, 0);
-	}
-	spin_unlock(&pl->pl_lock);
-
- recalc:
-	if (pl->pl_ops->po_recalc != NULL) {
-		count = pl->pl_ops->po_recalc(pl);
-		lprocfs_counter_add(pl->pl_stats, LDLM_POOL_RECALC_STAT,
-				    count);
-	}
-	recalc_interval_sec = pl->pl_recalc_time - get_seconds() +
-			      pl->pl_recalc_period;
-	if (recalc_interval_sec <= 0) {
-		/* Prevent too frequent recalculation. */
-		CDEBUG(D_DLMTRACE, "Negative interval(%ld), "
-		       "too short period(%ld)",
-		       recalc_interval_sec,
-		       pl->pl_recalc_period);
-		recalc_interval_sec = 1;
-	}
-
-	return recalc_interval_sec;
-}
-
-/*
- * Pool shrink wrapper. Will call either client or server pool recalc callback
- * depending what pool pl is used. When nr == 0, just return the number of
- * freeable locks. Otherwise, return the number of canceled locks.
- */
-int ldlm_pool_shrink(struct ldlm_pool *pl, int nr,
-		     gfp_t gfp_mask)
-{
-	int cancel = 0;
-
-	if (pl->pl_ops->po_shrink != NULL) {
-		cancel = pl->pl_ops->po_shrink(pl, nr, gfp_mask);
-		if (nr > 0) {
-			lprocfs_counter_add(pl->pl_stats,
-					    LDLM_POOL_SHRINK_REQTD_STAT,
-					    nr);
-			lprocfs_counter_add(pl->pl_stats,
-					    LDLM_POOL_SHRINK_FREED_STAT,
-					    cancel);
-			CDEBUG(D_DLMTRACE, "%s: request to shrink %d locks, shrunk %d\n",
-			       pl->pl_name, nr, cancel);
-		}
-	}
-	return cancel;
-}
-EXPORT_SYMBOL(ldlm_pool_shrink);
-
-/**
- * Pool setup wrapper. Will call either client or server pool recalc callback
- * depending what pool \a pl is used.
- *
- * Sets passed \a limit into pool \a pl.
- */
-int ldlm_pool_setup(struct ldlm_pool *pl, int limit)
-{
-	if (pl->pl_ops->po_setup != NULL)
-		return pl->pl_ops->po_setup(pl, limit);
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_pool_setup);
-
-static int lprocfs_pool_state_seq_show(struct seq_file *m, void *unused)
-{
-	int granted, grant_rate, cancel_rate, grant_step;
-	int grant_speed, grant_plan, lvf;
-	struct ldlm_pool *pl = m->private;
-	__u64 slv, clv;
-	__u32 limit;
-
-	spin_lock(&pl->pl_lock);
-	slv = pl->pl_server_lock_volume;
-	clv = pl->pl_client_lock_volume;
-	limit = ldlm_pool_get_limit(pl);
-	grant_plan = pl->pl_grant_plan;
-	granted = atomic_read(&pl->pl_granted);
-	grant_rate = atomic_read(&pl->pl_grant_rate);
-	cancel_rate = atomic_read(&pl->pl_cancel_rate);
-	grant_speed = grant_rate - cancel_rate;
-	lvf = atomic_read(&pl->pl_lock_volume_factor);
-	grant_step = ldlm_pool_t2gsp(pl->pl_recalc_period);
-	spin_unlock(&pl->pl_lock);
-
-	seq_printf(m, "LDLM pool state (%s):\n"
-		      "  SLV: %llu\n"
-		      "  CLV: %llu\n"
-		      "  LVF: %d\n",
-		      pl->pl_name, slv, clv, lvf);
-
-	if (ns_is_server(ldlm_pl2ns(pl))) {
-		seq_printf(m, "  GSP: %d%%\n"
-			      "  GP:  %d\n",
-			      grant_step, grant_plan);
-	}
-	seq_printf(m, "  GR:  %d\n  CR:  %d\n  GS:  %d\n"
-		      "  G:   %d\n  L:   %d\n",
-		      grant_rate, cancel_rate, grant_speed,
-		      granted, limit);
-
-	return 0;
-}
-LPROC_SEQ_FOPS_RO(lprocfs_pool_state);
-
-static ssize_t grant_speed_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
-{
-	struct ldlm_pool *pl = container_of(kobj, struct ldlm_pool,
-					    pl_kobj);
-
-	int	       grant_speed;
-
-	spin_lock(&pl->pl_lock);
-	/* serialize with ldlm_pool_recalc */
-	grant_speed = atomic_read(&pl->pl_grant_rate) -
-			atomic_read(&pl->pl_cancel_rate);
-	spin_unlock(&pl->pl_lock);
-	return sprintf(buf, "%d\n", grant_speed);
-}
-LUSTRE_RO_ATTR(grant_speed);
-
-LDLM_POOL_SYSFS_READER_SHOW(grant_plan, int);
-LUSTRE_RO_ATTR(grant_plan);
-
-LDLM_POOL_SYSFS_READER_SHOW(recalc_period, int);
-LDLM_POOL_SYSFS_WRITER_STORE(recalc_period, int);
-LUSTRE_RW_ATTR(recalc_period);
-
-LDLM_POOL_SYSFS_READER_NOLOCK_SHOW(server_lock_volume, u64);
-LUSTRE_RO_ATTR(server_lock_volume);
-
-LDLM_POOL_SYSFS_READER_NOLOCK_SHOW(limit, atomic);
-LDLM_POOL_SYSFS_WRITER_NOLOCK_STORE(limit, atomic);
-LUSTRE_RW_ATTR(limit);
-
-LDLM_POOL_SYSFS_READER_NOLOCK_SHOW(granted, atomic);
-LUSTRE_RO_ATTR(granted);
-
-LDLM_POOL_SYSFS_READER_NOLOCK_SHOW(cancel_rate, atomic);
-LUSTRE_RO_ATTR(cancel_rate);
-
-LDLM_POOL_SYSFS_READER_NOLOCK_SHOW(grant_rate, atomic);
-LUSTRE_RO_ATTR(grant_rate);
-
-LDLM_POOL_SYSFS_READER_NOLOCK_SHOW(lock_volume_factor, atomic);
-LDLM_POOL_SYSFS_WRITER_NOLOCK_STORE(lock_volume_factor, atomic);
-LUSTRE_RW_ATTR(lock_volume_factor);
-
-#define LDLM_POOL_ADD_VAR(name, var, ops)			\
-	do {							\
-		snprintf(var_name, MAX_STRING_SIZE, #name);	\
-		pool_vars[0].data = var;			\
-		pool_vars[0].fops = ops;			\
-		ldebugfs_add_vars(pl->pl_debugfs_entry, pool_vars, NULL);\
-	} while (0)
-
-/* These are for pools in /sys/fs/lustre/ldlm/namespaces/.../pool */
-static struct attribute *ldlm_pl_attrs[] = {
-	&lustre_attr_grant_speed.attr,
-	&lustre_attr_grant_plan.attr,
-	&lustre_attr_recalc_period.attr,
-	&lustre_attr_server_lock_volume.attr,
-	&lustre_attr_limit.attr,
-	&lustre_attr_granted.attr,
-	&lustre_attr_cancel_rate.attr,
-	&lustre_attr_grant_rate.attr,
-	&lustre_attr_lock_volume_factor.attr,
-	NULL,
-};
-
-static void ldlm_pl_release(struct kobject *kobj)
-{
-	struct ldlm_pool *pl = container_of(kobj, struct ldlm_pool,
-					    pl_kobj);
-	complete(&pl->pl_kobj_unregister);
-}
-
-static struct kobj_type ldlm_pl_ktype = {
-	.default_attrs	= ldlm_pl_attrs,
-	.sysfs_ops	= &lustre_sysfs_ops,
-	.release	= ldlm_pl_release,
-};
-
-static int ldlm_pool_sysfs_init(struct ldlm_pool *pl)
-{
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
-	int err;
-
-	init_completion(&pl->pl_kobj_unregister);
-	err = kobject_init_and_add(&pl->pl_kobj, &ldlm_pl_ktype, &ns->ns_kobj,
-				   "pool");
-
-	return err;
-}
-
-static int ldlm_pool_debugfs_init(struct ldlm_pool *pl)
-{
-	struct ldlm_namespace *ns = ldlm_pl2ns(pl);
-	struct dentry *debugfs_ns_parent;
-	struct lprocfs_vars pool_vars[2];
-	char *var_name = NULL;
-	int rc = 0;
-
-	var_name = kzalloc(MAX_STRING_SIZE + 1, GFP_NOFS);
-	if (!var_name)
-		return -ENOMEM;
-
-	debugfs_ns_parent = ns->ns_debugfs_entry;
-	if (IS_ERR_OR_NULL(debugfs_ns_parent)) {
-		CERROR("%s: debugfs entry is not initialized\n",
-		       ldlm_ns_name(ns));
-		rc = -EINVAL;
-		goto out_free_name;
-	}
-	pl->pl_debugfs_entry = ldebugfs_register("pool", debugfs_ns_parent,
-						 NULL, NULL);
-	if (IS_ERR(pl->pl_debugfs_entry)) {
-		CERROR("LdebugFS failed in ldlm-pool-init\n");
-		rc = PTR_ERR(pl->pl_debugfs_entry);
-		pl->pl_debugfs_entry = NULL;
-		goto out_free_name;
-	}
-
-	var_name[MAX_STRING_SIZE] = '\0';
-	memset(pool_vars, 0, sizeof(pool_vars));
-	pool_vars[0].name = var_name;
-
-	LDLM_POOL_ADD_VAR(state, pl, &lprocfs_pool_state_fops);
-
-	pl->pl_stats = lprocfs_alloc_stats(LDLM_POOL_LAST_STAT -
-					   LDLM_POOL_FIRST_STAT, 0);
-	if (!pl->pl_stats) {
-		rc = -ENOMEM;
-		goto out_free_name;
-	}
-
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_GRANTED_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "granted", "locks");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_GRANT_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "grant", "locks");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_CANCEL_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "cancel", "locks");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_GRANT_RATE_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "grant_rate", "locks/s");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_CANCEL_RATE_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "cancel_rate", "locks/s");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_GRANT_PLAN_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "grant_plan", "locks/s");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_SLV_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "slv", "slv");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_SHRINK_REQTD_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "shrink_request", "locks");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_SHRINK_FREED_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "shrink_freed", "locks");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_RECALC_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "recalc_freed", "locks");
-	lprocfs_counter_init(pl->pl_stats, LDLM_POOL_TIMING_STAT,
-			     LPROCFS_CNTR_AVGMINMAX | LPROCFS_CNTR_STDDEV,
-			     "recalc_timing", "sec");
-	rc = ldebugfs_register_stats(pl->pl_debugfs_entry, "stats",
-				     pl->pl_stats);
-
-out_free_name:
-	kfree(var_name);
-	return rc;
-}
-
-static void ldlm_pool_sysfs_fini(struct ldlm_pool *pl)
-{
-	kobject_put(&pl->pl_kobj);
-	wait_for_completion(&pl->pl_kobj_unregister);
-}
-
-static void ldlm_pool_debugfs_fini(struct ldlm_pool *pl)
-{
-	if (pl->pl_stats != NULL) {
-		lprocfs_free_stats(&pl->pl_stats);
-		pl->pl_stats = NULL;
-	}
-	if (pl->pl_debugfs_entry != NULL) {
-		ldebugfs_remove(&pl->pl_debugfs_entry);
-		pl->pl_debugfs_entry = NULL;
-	}
-}
-
-int ldlm_pool_init(struct ldlm_pool *pl, struct ldlm_namespace *ns,
-		   int idx, ldlm_side_t client)
-{
-	int rc;
-
-	spin_lock_init(&pl->pl_lock);
-	atomic_set(&pl->pl_granted, 0);
-	pl->pl_recalc_time = get_seconds();
-	atomic_set(&pl->pl_lock_volume_factor, 1);
-
-	atomic_set(&pl->pl_grant_rate, 0);
-	atomic_set(&pl->pl_cancel_rate, 0);
-	pl->pl_grant_plan = LDLM_POOL_GP(LDLM_POOL_HOST_L);
-
-	snprintf(pl->pl_name, sizeof(pl->pl_name), "ldlm-pool-%s-%d",
-		 ldlm_ns_name(ns), idx);
-
-	if (client == LDLM_NAMESPACE_SERVER) {
-		pl->pl_ops = &ldlm_srv_pool_ops;
-		ldlm_pool_set_limit(pl, LDLM_POOL_HOST_L);
-		pl->pl_recalc_period = LDLM_POOL_SRV_DEF_RECALC_PERIOD;
-		pl->pl_server_lock_volume = ldlm_pool_slv_max(LDLM_POOL_HOST_L);
-	} else {
-		ldlm_pool_set_limit(pl, 1);
-		pl->pl_server_lock_volume = 0;
-		pl->pl_ops = &ldlm_cli_pool_ops;
-		pl->pl_recalc_period = LDLM_POOL_CLI_DEF_RECALC_PERIOD;
-	}
-	pl->pl_client_lock_volume = 0;
-	rc = ldlm_pool_debugfs_init(pl);
-	if (rc)
-		return rc;
-
-	rc = ldlm_pool_sysfs_init(pl);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_DLMTRACE, "Lock pool %s is initialized\n", pl->pl_name);
-
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_pool_init);
-
-void ldlm_pool_fini(struct ldlm_pool *pl)
-{
-	ldlm_pool_sysfs_fini(pl);
-	ldlm_pool_debugfs_fini(pl);
-
-	/*
-	 * Pool should not be used after this point. We can't free it here as
-	 * it lives in struct ldlm_namespace, but still interested in catching
-	 * any abnormal using cases.
-	 */
-	POISON(pl, 0x5a, sizeof(*pl));
-}
-EXPORT_SYMBOL(ldlm_pool_fini);
-
-/**
- * Add new taken ldlm lock \a lock into pool \a pl accounting.
- */
-void ldlm_pool_add(struct ldlm_pool *pl, struct ldlm_lock *lock)
-{
-	/*
-	 * FLOCK locks are special in a sense that they are almost never
-	 * cancelled, instead special kind of lock is used to drop them.
-	 * also there is no LRU for flock locks, so no point in tracking
-	 * them anyway.
-	 */
-	if (lock->l_resource->lr_type == LDLM_FLOCK)
-		return;
-
-	atomic_inc(&pl->pl_granted);
-	atomic_inc(&pl->pl_grant_rate);
-	lprocfs_counter_incr(pl->pl_stats, LDLM_POOL_GRANT_STAT);
-	/*
-	 * Do not do pool recalc for client side as all locks which
-	 * potentially may be canceled has already been packed into
-	 * enqueue/cancel rpc. Also we do not want to run out of stack
-	 * with too long call paths.
-	 */
-	if (ns_is_server(ldlm_pl2ns(pl)))
-		ldlm_pool_recalc(pl);
-}
-EXPORT_SYMBOL(ldlm_pool_add);
-
-/**
- * Remove ldlm lock \a lock from pool \a pl accounting.
- */
-void ldlm_pool_del(struct ldlm_pool *pl, struct ldlm_lock *lock)
-{
-	/*
-	 * Filter out FLOCK locks. Read above comment in ldlm_pool_add().
-	 */
-	if (lock->l_resource->lr_type == LDLM_FLOCK)
-		return;
-
-	LASSERT(atomic_read(&pl->pl_granted) > 0);
-	atomic_dec(&pl->pl_granted);
-	atomic_inc(&pl->pl_cancel_rate);
-
-	lprocfs_counter_incr(pl->pl_stats, LDLM_POOL_CANCEL_STAT);
-
-	if (ns_is_server(ldlm_pl2ns(pl)))
-		ldlm_pool_recalc(pl);
-}
-EXPORT_SYMBOL(ldlm_pool_del);
-
-/**
- * Returns current \a pl SLV.
- *
- * \pre ->pl_lock is not locked.
- */
-__u64 ldlm_pool_get_slv(struct ldlm_pool *pl)
-{
-	__u64 slv;
-
-	spin_lock(&pl->pl_lock);
-	slv = pl->pl_server_lock_volume;
-	spin_unlock(&pl->pl_lock);
-	return slv;
-}
-EXPORT_SYMBOL(ldlm_pool_get_slv);
-
-/**
- * Sets passed \a slv to \a pl.
- *
- * \pre ->pl_lock is not locked.
- */
-void ldlm_pool_set_slv(struct ldlm_pool *pl, __u64 slv)
-{
-	spin_lock(&pl->pl_lock);
-	pl->pl_server_lock_volume = slv;
-	spin_unlock(&pl->pl_lock);
-}
-EXPORT_SYMBOL(ldlm_pool_set_slv);
-
-/**
- * Returns current \a pl CLV.
- *
- * \pre ->pl_lock is not locked.
- */
-__u64 ldlm_pool_get_clv(struct ldlm_pool *pl)
-{
-	__u64 slv;
-
-	spin_lock(&pl->pl_lock);
-	slv = pl->pl_client_lock_volume;
-	spin_unlock(&pl->pl_lock);
-	return slv;
-}
-EXPORT_SYMBOL(ldlm_pool_get_clv);
-
-/**
- * Sets passed \a clv to \a pl.
- *
- * \pre ->pl_lock is not locked.
- */
-void ldlm_pool_set_clv(struct ldlm_pool *pl, __u64 clv)
-{
-	spin_lock(&pl->pl_lock);
-	pl->pl_client_lock_volume = clv;
-	spin_unlock(&pl->pl_lock);
-}
-EXPORT_SYMBOL(ldlm_pool_set_clv);
-
-/**
- * Returns current \a pl limit.
- */
-__u32 ldlm_pool_get_limit(struct ldlm_pool *pl)
-{
-	return atomic_read(&pl->pl_limit);
-}
-EXPORT_SYMBOL(ldlm_pool_get_limit);
-
-/**
- * Sets passed \a limit to \a pl.
- */
-void ldlm_pool_set_limit(struct ldlm_pool *pl, __u32 limit)
-{
-	atomic_set(&pl->pl_limit, limit);
-}
-EXPORT_SYMBOL(ldlm_pool_set_limit);
-
-/**
- * Returns current LVF from \a pl.
- */
-__u32 ldlm_pool_get_lvf(struct ldlm_pool *pl)
-{
-	return atomic_read(&pl->pl_lock_volume_factor);
-}
-EXPORT_SYMBOL(ldlm_pool_get_lvf);
-
-static int ldlm_pool_granted(struct ldlm_pool *pl)
-{
-	return atomic_read(&pl->pl_granted);
-}
-
-static struct ptlrpc_thread *ldlm_pools_thread;
-static struct completion ldlm_pools_comp;
-
-/*
- * count locks from all namespaces (if possible). Returns number of
- * cached locks.
- */
-static unsigned long ldlm_pools_count(ldlm_side_t client, gfp_t gfp_mask)
-{
-	int total = 0, nr_ns;
-	struct ldlm_namespace *ns;
-	struct ldlm_namespace *ns_old = NULL; /* loop detection */
-	void *cookie;
-
-	if (client == LDLM_NAMESPACE_CLIENT && !(gfp_mask & __GFP_FS))
-		return 0;
-
-	CDEBUG(D_DLMTRACE, "Request to count %s locks from all pools\n",
-	       client == LDLM_NAMESPACE_CLIENT ? "client" : "server");
-
-	cookie = cl_env_reenter();
-
-	/*
-	 * Find out how many resources we may release.
-	 */
-	for (nr_ns = ldlm_namespace_nr_read(client);
-	     nr_ns > 0; nr_ns--) {
-		mutex_lock(ldlm_namespace_lock(client));
-		if (list_empty(ldlm_namespace_list(client))) {
-			mutex_unlock(ldlm_namespace_lock(client));
-			cl_env_reexit(cookie);
-			return 0;
-		}
-		ns = ldlm_namespace_first_locked(client);
-
-		if (ns == ns_old) {
-			mutex_unlock(ldlm_namespace_lock(client));
-			break;
-		}
-
-		if (ldlm_ns_empty(ns)) {
-			ldlm_namespace_move_to_inactive_locked(ns, client);
-			mutex_unlock(ldlm_namespace_lock(client));
-			continue;
-		}
-
-		if (ns_old == NULL)
-			ns_old = ns;
-
-		ldlm_namespace_get(ns);
-		ldlm_namespace_move_to_active_locked(ns, client);
-		mutex_unlock(ldlm_namespace_lock(client));
-		total += ldlm_pool_shrink(&ns->ns_pool, 0, gfp_mask);
-		ldlm_namespace_put(ns);
-	}
-
-	cl_env_reexit(cookie);
-	return total;
-}
-
-static unsigned long ldlm_pools_scan(ldlm_side_t client, int nr, gfp_t gfp_mask)
-{
-	unsigned long freed = 0;
-	int tmp, nr_ns;
-	struct ldlm_namespace *ns;
-	void *cookie;
-
-	if (client == LDLM_NAMESPACE_CLIENT && !(gfp_mask & __GFP_FS))
-		return -1;
-
-	cookie = cl_env_reenter();
-
-	/*
-	 * Shrink at least ldlm_namespace_nr_read(client) namespaces.
-	 */
-	for (tmp = nr_ns = ldlm_namespace_nr_read(client);
-	     tmp > 0; tmp--) {
-		int cancel, nr_locks;
-
-		/*
-		 * Do not call shrink under ldlm_namespace_lock(client)
-		 */
-		mutex_lock(ldlm_namespace_lock(client));
-		if (list_empty(ldlm_namespace_list(client))) {
-			mutex_unlock(ldlm_namespace_lock(client));
-			break;
-		}
-		ns = ldlm_namespace_first_locked(client);
-		ldlm_namespace_get(ns);
-		ldlm_namespace_move_to_active_locked(ns, client);
-		mutex_unlock(ldlm_namespace_lock(client));
-
-		nr_locks = ldlm_pool_granted(&ns->ns_pool);
-		/*
-		 * We use to shrink propotionally but with new shrinker API,
-		 * we lost the total number of freeable locks.
-		 */
-		cancel = 1 + min_t(int, nr_locks, nr / nr_ns);
-		freed += ldlm_pool_shrink(&ns->ns_pool, cancel, gfp_mask);
-		ldlm_namespace_put(ns);
-	}
-	cl_env_reexit(cookie);
-	/*
-	 * we only decrease the SLV in server pools shrinker, return
-	 * SHRINK_STOP to kernel to avoid needless loop. LU-1128
-	 */
-	return (client == LDLM_NAMESPACE_SERVER) ? SHRINK_STOP : freed;
-}
-
-static unsigned long ldlm_pools_srv_count(struct shrinker *s,
-					  struct shrink_control *sc)
-{
-	return ldlm_pools_count(LDLM_NAMESPACE_SERVER, sc->gfp_mask);
-}
-
-static unsigned long ldlm_pools_srv_scan(struct shrinker *s,
-					 struct shrink_control *sc)
-{
-	return ldlm_pools_scan(LDLM_NAMESPACE_SERVER, sc->nr_to_scan,
-			       sc->gfp_mask);
-}
-
-static unsigned long ldlm_pools_cli_count(struct shrinker *s,
-					  struct shrink_control *sc)
-{
-	return ldlm_pools_count(LDLM_NAMESPACE_CLIENT, sc->gfp_mask);
-}
-
-static unsigned long ldlm_pools_cli_scan(struct shrinker *s,
-					 struct shrink_control *sc)
-{
-	return ldlm_pools_scan(LDLM_NAMESPACE_CLIENT, sc->nr_to_scan,
-			       sc->gfp_mask);
-}
-
-int ldlm_pools_recalc(ldlm_side_t client)
-{
-	__u32 nr_l = 0, nr_p = 0, l;
-	struct ldlm_namespace *ns;
-	struct ldlm_namespace *ns_old = NULL;
-	int nr, equal = 0;
-	int time = 50; /* seconds of sleep if no active namespaces */
-
-	/*
-	 * No need to setup pool limit for client pools.
-	 */
-	if (client == LDLM_NAMESPACE_SERVER) {
-		/*
-		 * Check all modest namespaces first.
-		 */
-		mutex_lock(ldlm_namespace_lock(client));
-		list_for_each_entry(ns, ldlm_namespace_list(client),
-					ns_list_chain) {
-			if (ns->ns_appetite != LDLM_NAMESPACE_MODEST)
-				continue;
-
-			l = ldlm_pool_granted(&ns->ns_pool);
-			if (l == 0)
-				l = 1;
-
-			/*
-			 * Set the modest pools limit equal to their avg granted
-			 * locks + ~6%.
-			 */
-			l += dru(l, LDLM_POOLS_MODEST_MARGIN_SHIFT, 0);
-			ldlm_pool_setup(&ns->ns_pool, l);
-			nr_l += l;
-			nr_p++;
-		}
-
-		/*
-		 * Make sure that modest namespaces did not eat more that 2/3
-		 * of limit.
-		 */
-		if (nr_l >= 2 * (LDLM_POOL_HOST_L / 3)) {
-			CWARN("\"Modest\" pools eat out 2/3 of server locks limit (%d of %lu). This means that you have too many clients for this amount of server RAM. Upgrade server!\n",
-			      nr_l, LDLM_POOL_HOST_L);
-			equal = 1;
-		}
-
-		/*
-		 * The rest is given to greedy namespaces.
-		 */
-		list_for_each_entry(ns, ldlm_namespace_list(client),
-				    ns_list_chain) {
-			if (!equal && ns->ns_appetite != LDLM_NAMESPACE_GREEDY)
-				continue;
-
-			if (equal) {
-				/*
-				 * In the case 2/3 locks are eaten out by
-				 * modest pools, we re-setup equal limit
-				 * for _all_ pools.
-				 */
-				l = LDLM_POOL_HOST_L /
-					ldlm_namespace_nr_read(client);
-			} else {
-				/*
-				 * All the rest of greedy pools will have
-				 * all locks in equal parts.
-				 */
-				l = (LDLM_POOL_HOST_L - nr_l) /
-					(ldlm_namespace_nr_read(client) -
-					 nr_p);
-			}
-			ldlm_pool_setup(&ns->ns_pool, l);
-		}
-		mutex_unlock(ldlm_namespace_lock(client));
-	}
-
-	/*
-	 * Recalc at least ldlm_namespace_nr_read(client) namespaces.
-	 */
-	for (nr = ldlm_namespace_nr_read(client); nr > 0; nr--) {
-		int     skip;
-		/*
-		 * Lock the list, get first @ns in the list, getref, move it
-		 * to the tail, unlock and call pool recalc. This way we avoid
-		 * calling recalc under @ns lock what is really good as we get
-		 * rid of potential deadlock on client nodes when canceling
-		 * locks synchronously.
-		 */
-		mutex_lock(ldlm_namespace_lock(client));
-		if (list_empty(ldlm_namespace_list(client))) {
-			mutex_unlock(ldlm_namespace_lock(client));
-			break;
-		}
-		ns = ldlm_namespace_first_locked(client);
-
-		if (ns_old == ns) { /* Full pass complete */
-			mutex_unlock(ldlm_namespace_lock(client));
-			break;
-		}
-
-		/* We got an empty namespace, need to move it back to inactive
-		 * list.
-		 * The race with parallel resource creation is fine:
-		 * - If they do namespace_get before our check, we fail the
-		 *   check and they move this item to the end of the list anyway
-		 * - If we do the check and then they do namespace_get, then
-		 *   we move the namespace to inactive and they will move
-		 *   it back to active (synchronised by the lock, so no clash
-		 *   there).
-		 */
-		if (ldlm_ns_empty(ns)) {
-			ldlm_namespace_move_to_inactive_locked(ns, client);
-			mutex_unlock(ldlm_namespace_lock(client));
-			continue;
-		}
-
-		if (ns_old == NULL)
-			ns_old = ns;
-
-		spin_lock(&ns->ns_lock);
-		/*
-		 * skip ns which is being freed, and we don't want to increase
-		 * its refcount again, not even temporarily. bz21519 & LU-499.
-		 */
-		if (ns->ns_stopping) {
-			skip = 1;
-		} else {
-			skip = 0;
-			ldlm_namespace_get(ns);
-		}
-		spin_unlock(&ns->ns_lock);
-
-		ldlm_namespace_move_to_active_locked(ns, client);
-		mutex_unlock(ldlm_namespace_lock(client));
-
-		/*
-		 * After setup is done - recalc the pool.
-		 */
-		if (!skip) {
-			int ttime = ldlm_pool_recalc(&ns->ns_pool);
-
-			if (ttime < time)
-				time = ttime;
-
-			ldlm_namespace_put(ns);
-		}
-	}
-	return time;
-}
-EXPORT_SYMBOL(ldlm_pools_recalc);
-
-static int ldlm_pools_thread_main(void *arg)
-{
-	struct ptlrpc_thread *thread = (struct ptlrpc_thread *)arg;
-	int s_time, c_time;
-
-	thread_set_flags(thread, SVC_RUNNING);
-	wake_up(&thread->t_ctl_waitq);
-
-	CDEBUG(D_DLMTRACE, "%s: pool thread starting, process %d\n",
-		"ldlm_poold", current_pid());
-
-	while (1) {
-		struct l_wait_info lwi;
-
-		/*
-		 * Recal all pools on this tick.
-		 */
-		s_time = ldlm_pools_recalc(LDLM_NAMESPACE_SERVER);
-		c_time = ldlm_pools_recalc(LDLM_NAMESPACE_CLIENT);
-
-		/*
-		 * Wait until the next check time, or until we're
-		 * stopped.
-		 */
-		lwi = LWI_TIMEOUT(cfs_time_seconds(min(s_time, c_time)),
-				  NULL, NULL);
-		l_wait_event(thread->t_ctl_waitq,
-			     thread_is_stopping(thread) ||
-			     thread_is_event(thread),
-			     &lwi);
-
-		if (thread_test_and_clear_flags(thread, SVC_STOPPING))
-			break;
-		thread_test_and_clear_flags(thread, SVC_EVENT);
-	}
-
-	thread_set_flags(thread, SVC_STOPPED);
-	wake_up(&thread->t_ctl_waitq);
-
-	CDEBUG(D_DLMTRACE, "%s: pool thread exiting, process %d\n",
-		"ldlm_poold", current_pid());
-
-	complete_and_exit(&ldlm_pools_comp, 0);
-}
-
-static int ldlm_pools_thread_start(void)
-{
-	struct l_wait_info lwi = { 0 };
-	struct task_struct *task;
-
-	if (ldlm_pools_thread != NULL)
-		return -EALREADY;
-
-	ldlm_pools_thread = kzalloc(sizeof(*ldlm_pools_thread), GFP_NOFS);
-	if (!ldlm_pools_thread)
-		return -ENOMEM;
-
-	init_completion(&ldlm_pools_comp);
-	init_waitqueue_head(&ldlm_pools_thread->t_ctl_waitq);
-
-	task = kthread_run(ldlm_pools_thread_main, ldlm_pools_thread,
-			   "ldlm_poold");
-	if (IS_ERR(task)) {
-		CERROR("Can't start pool thread, error %ld\n", PTR_ERR(task));
-		kfree(ldlm_pools_thread);
-		ldlm_pools_thread = NULL;
-		return PTR_ERR(task);
-	}
-	l_wait_event(ldlm_pools_thread->t_ctl_waitq,
-		     thread_is_running(ldlm_pools_thread), &lwi);
-	return 0;
-}
-
-static void ldlm_pools_thread_stop(void)
-{
-	if (ldlm_pools_thread == NULL)
-		return;
-
-	thread_set_flags(ldlm_pools_thread, SVC_STOPPING);
-	wake_up(&ldlm_pools_thread->t_ctl_waitq);
-
-	/*
-	 * Make sure that pools thread is finished before freeing @thread.
-	 * This fixes possible race and oops due to accessing freed memory
-	 * in pools thread.
-	 */
-	wait_for_completion(&ldlm_pools_comp);
-	kfree(ldlm_pools_thread);
-	ldlm_pools_thread = NULL;
-}
-
-static struct shrinker ldlm_pools_srv_shrinker = {
-	.count_objects	= ldlm_pools_srv_count,
-	.scan_objects	= ldlm_pools_srv_scan,
-	.seeks		= DEFAULT_SEEKS,
-};
-
-static struct shrinker ldlm_pools_cli_shrinker = {
-	.count_objects	= ldlm_pools_cli_count,
-	.scan_objects	= ldlm_pools_cli_scan,
-	.seeks		= DEFAULT_SEEKS,
-};
-
-int ldlm_pools_init(void)
-{
-	int rc;
-
-	rc = ldlm_pools_thread_start();
-	if (rc == 0) {
-		register_shrinker(&ldlm_pools_srv_shrinker);
-		register_shrinker(&ldlm_pools_cli_shrinker);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_pools_init);
-
-void ldlm_pools_fini(void)
-{
-	if (ldlm_pools_thread) {
-		unregister_shrinker(&ldlm_pools_srv_shrinker);
-		unregister_shrinker(&ldlm_pools_cli_shrinker);
-	}
-	ldlm_pools_thread_stop();
-}
-EXPORT_SYMBOL(ldlm_pools_fini);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
deleted file mode 100644
index 6245a2c36a0f..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ /dev/null
@@ -1,2294 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-/**
- * This file contains Asynchronous System Trap (AST) handlers and related
- * LDLM request-processing routines.
- *
- * An AST is a callback issued on a lock when its state is changed. There are
- * several different types of ASTs (callbacks) registered for each lock:
- *
- * - completion AST: when a lock is enqueued by some process, but cannot be
- *   granted immediately due to other conflicting locks on the same resource,
- *   the completion AST is sent to notify the caller when the lock is
- *   eventually granted
- *
- * - blocking AST: when a lock is granted to some process, if another process
- *   enqueues a conflicting (blocking) lock on a resource, a blocking AST is
- *   sent to notify the holder(s) of the lock(s) of the conflicting lock
- *   request. The lock holder(s) must release their lock(s) on that resource in
- *   a timely manner or be evicted by the server.
- *
- * - glimpse AST: this is used when a process wants information about a lock
- *   (i.e. the lock value block (LVB)) but does not necessarily require holding
- *   the lock. If the resource is locked, the lock holder(s) are sent glimpse
- *   ASTs and the LVB is returned to the caller, and lock holder(s) may CANCEL
- *   their lock(s) if they are idle. If the resource is not locked, the server
- *   may grant the lock.
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-
-#include "../include/lustre_dlm.h"
-#include "../include/obd_class.h"
-#include "../include/obd.h"
-
-#include "ldlm_internal.h"
-
-int ldlm_enqueue_min = OBD_TIMEOUT_DEFAULT;
-module_param(ldlm_enqueue_min, int, 0644);
-MODULE_PARM_DESC(ldlm_enqueue_min, "lock enqueue timeout minimum");
-
-/* in client side, whether the cached locks will be canceled before replay */
-unsigned int ldlm_cancel_unused_locks_before_replay = 1;
-
-static void interrupted_completion_wait(void *data)
-{
-}
-
-struct lock_wait_data {
-	struct ldlm_lock *lwd_lock;
-	__u32	     lwd_conn_cnt;
-};
-
-struct ldlm_async_args {
-	struct lustre_handle lock_handle;
-};
-
-int ldlm_expired_completion_wait(void *data)
-{
-	struct lock_wait_data *lwd = data;
-	struct ldlm_lock *lock = lwd->lwd_lock;
-	struct obd_import *imp;
-	struct obd_device *obd;
-
-	if (lock->l_conn_export == NULL) {
-		static unsigned long next_dump, last_dump;
-
-		LCONSOLE_WARN("lock timed out (enqueued at "CFS_TIME_T", "
-			      CFS_DURATION_T"s ago)\n",
-			      lock->l_last_activity,
-			      cfs_time_sub(get_seconds(),
-					   lock->l_last_activity));
-		LDLM_DEBUG(lock, "lock timed out (enqueued at " CFS_TIME_T ", " CFS_DURATION_T "s ago); not entering recovery in server code, just going back to sleep",
-			   lock->l_last_activity,
-			   cfs_time_sub(get_seconds(),
-					lock->l_last_activity));
-		if (cfs_time_after(cfs_time_current(), next_dump)) {
-			last_dump = next_dump;
-			next_dump = cfs_time_shift(300);
-			ldlm_namespace_dump(D_DLMTRACE,
-					    ldlm_lock_to_ns(lock));
-			if (last_dump == 0)
-				libcfs_debug_dumplog();
-		}
-		return 0;
-	}
-
-	obd = lock->l_conn_export->exp_obd;
-	imp = obd->u.cli.cl_import;
-	ptlrpc_fail_import(imp, lwd->lwd_conn_cnt);
-	LDLM_ERROR(lock, "lock timed out (enqueued at "CFS_TIME_T", "
-		  CFS_DURATION_T"s ago), entering recovery for %s@%s",
-		  lock->l_last_activity,
-		  cfs_time_sub(get_seconds(), lock->l_last_activity),
-		  obd2cli_tgt(obd), imp->imp_connection->c_remote_uuid.uuid);
-
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_expired_completion_wait);
-
-/* We use the same basis for both server side and client side functions
-   from a single node. */
-int ldlm_get_enq_timeout(struct ldlm_lock *lock)
-{
-	int timeout = at_get(ldlm_lock_to_ns_at(lock));
-
-	if (AT_OFF)
-		return obd_timeout / 2;
-	/* Since these are non-updating timeouts, we should be conservative.
-	   It would be nice to have some kind of "early reply" mechanism for
-	   lock callbacks too... */
-	timeout = min_t(int, at_max, timeout + (timeout >> 1)); /* 150% */
-	return max(timeout, ldlm_enqueue_min);
-}
-EXPORT_SYMBOL(ldlm_get_enq_timeout);
-
-/**
- * Helper function for ldlm_completion_ast(), updating timings when lock is
- * actually granted.
- */
-static int ldlm_completion_tail(struct ldlm_lock *lock)
-{
-	long delay;
-	int  result;
-
-	if (lock->l_flags & (LDLM_FL_DESTROYED | LDLM_FL_FAILED)) {
-		LDLM_DEBUG(lock, "client-side enqueue: destroyed");
-		result = -EIO;
-	} else {
-		delay = cfs_time_sub(get_seconds(),
-				     lock->l_last_activity);
-		LDLM_DEBUG(lock, "client-side enqueue: granted after "
-			   CFS_DURATION_T"s", delay);
-
-		/* Update our time estimate */
-		at_measured(ldlm_lock_to_ns_at(lock),
-			    delay);
-		result = 0;
-	}
-	return result;
-}
-
-/**
- * Implementation of ->l_completion_ast() for a client, that doesn't wait
- * until lock is granted. Suitable for locks enqueued through ptlrpcd, of
- * other threads that cannot block for long.
- */
-int ldlm_completion_ast_async(struct ldlm_lock *lock, __u64 flags, void *data)
-{
-	if (flags == LDLM_FL_WAIT_NOREPROC) {
-		LDLM_DEBUG(lock, "client-side enqueue waiting on pending lock");
-		return 0;
-	}
-
-	if (!(flags & (LDLM_FL_BLOCK_WAIT | LDLM_FL_BLOCK_GRANTED |
-		       LDLM_FL_BLOCK_CONV))) {
-		wake_up(&lock->l_waitq);
-		return ldlm_completion_tail(lock);
-	}
-
-	LDLM_DEBUG(lock, "client-side enqueue returned a blocked lock, going forward");
-	ldlm_reprocess_all(lock->l_resource);
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_completion_ast_async);
-
-/**
- * Generic LDLM "completion" AST. This is called in several cases:
- *
- *     - when a reply to an ENQUEUE RPC is received from the server
- *       (ldlm_cli_enqueue_fini()). Lock might be granted or not granted at
- *       this point (determined by flags);
- *
- *     - when LDLM_CP_CALLBACK RPC comes to client to notify it that lock has
- *       been granted;
- *
- *     - when ldlm_lock_match(LDLM_FL_LVB_READY) is about to wait until lock
- *       gets correct lvb;
- *
- *     - to force all locks when resource is destroyed (cleanup_resource());
- *
- *     - during lock conversion (not used currently).
- *
- * If lock is not granted in the first case, this function waits until second
- * or penultimate cases happen in some other thread.
- *
- */
-int ldlm_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
-{
-	/* XXX ALLOCATE - 160 bytes */
-	struct lock_wait_data lwd;
-	struct obd_device *obd;
-	struct obd_import *imp = NULL;
-	struct l_wait_info lwi;
-	__u32 timeout;
-	int rc = 0;
-
-	if (flags == LDLM_FL_WAIT_NOREPROC) {
-		LDLM_DEBUG(lock, "client-side enqueue waiting on pending lock");
-		goto noreproc;
-	}
-
-	if (!(flags & (LDLM_FL_BLOCK_WAIT | LDLM_FL_BLOCK_GRANTED |
-		       LDLM_FL_BLOCK_CONV))) {
-		wake_up(&lock->l_waitq);
-		return 0;
-	}
-
-	LDLM_DEBUG(lock, "client-side enqueue returned a blocked lock, sleeping");
-
-noreproc:
-
-	obd = class_exp2obd(lock->l_conn_export);
-
-	/* if this is a local lock, then there is no import */
-	if (obd != NULL)
-		imp = obd->u.cli.cl_import;
-
-	/* Wait a long time for enqueue - server may have to callback a
-	   lock from another client.  Server will evict the other client if it
-	   doesn't respond reasonably, and then give us the lock. */
-	timeout = ldlm_get_enq_timeout(lock) * 2;
-
-	lwd.lwd_lock = lock;
-
-	if (lock->l_flags & LDLM_FL_NO_TIMEOUT) {
-		LDLM_DEBUG(lock, "waiting indefinitely because of NO_TIMEOUT");
-		lwi = LWI_INTR(interrupted_completion_wait, &lwd);
-	} else {
-		lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(timeout),
-				       ldlm_expired_completion_wait,
-				       interrupted_completion_wait, &lwd);
-	}
-
-	if (imp != NULL) {
-		spin_lock(&imp->imp_lock);
-		lwd.lwd_conn_cnt = imp->imp_conn_cnt;
-		spin_unlock(&imp->imp_lock);
-	}
-
-	if (ns_is_client(ldlm_lock_to_ns(lock)) &&
-	    OBD_FAIL_CHECK_RESET(OBD_FAIL_LDLM_INTR_CP_AST,
-				 OBD_FAIL_LDLM_CP_BL_RACE | OBD_FAIL_ONCE)) {
-		lock->l_flags |= LDLM_FL_FAIL_LOC;
-		rc = -EINTR;
-	} else {
-		/* Go to sleep until the lock is granted or cancelled. */
-		rc = l_wait_event(lock->l_waitq,
-				  is_granted_or_cancelled(lock), &lwi);
-	}
-
-	if (rc) {
-		LDLM_DEBUG(lock, "client-side enqueue waking up: failed (%d)",
-			   rc);
-		return rc;
-	}
-
-	return ldlm_completion_tail(lock);
-}
-EXPORT_SYMBOL(ldlm_completion_ast);
-
-/**
- * A helper to build a blocking AST function
- *
- * Perform a common operation for blocking ASTs:
- * deferred lock cancellation.
- *
- * \param lock the lock blocking or canceling AST was called on
- * \retval 0
- * \see mdt_blocking_ast
- * \see ldlm_blocking_ast
- */
-int ldlm_blocking_ast_nocheck(struct ldlm_lock *lock)
-{
-	int do_ast;
-
-	lock->l_flags |= LDLM_FL_CBPENDING;
-	do_ast = !lock->l_readers && !lock->l_writers;
-	unlock_res_and_lock(lock);
-
-	if (do_ast) {
-		struct lustre_handle lockh;
-		int rc;
-
-		LDLM_DEBUG(lock, "already unused, calling ldlm_cli_cancel");
-		ldlm_lock2handle(lock, &lockh);
-		rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
-		if (rc < 0)
-			CERROR("ldlm_cli_cancel: %d\n", rc);
-	} else {
-		LDLM_DEBUG(lock, "Lock still has references, will be cancelled later");
-	}
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_blocking_ast_nocheck);
-
-/**
- * Server blocking AST
- *
- * ->l_blocking_ast() callback for LDLM locks acquired by server-side
- * OBDs.
- *
- * \param lock the lock which blocks a request or cancelling lock
- * \param desc unused
- * \param data unused
- * \param flag indicates whether this cancelling or blocking callback
- * \retval 0
- * \see ldlm_blocking_ast_nocheck
- */
-int ldlm_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
-		      void *data, int flag)
-{
-	if (flag == LDLM_CB_CANCELING) {
-		/* Don't need to do anything here. */
-		return 0;
-	}
-
-	lock_res_and_lock(lock);
-	/* Get this: if ldlm_blocking_ast is racing with intent_policy, such
-	 * that ldlm_blocking_ast is called just before intent_policy method
-	 * takes the lr_lock, then by the time we get the lock, we might not
-	 * be the correct blocking function anymore.  So check, and return
-	 * early, if so. */
-	if (lock->l_blocking_ast != ldlm_blocking_ast) {
-		unlock_res_and_lock(lock);
-		return 0;
-	}
-	return ldlm_blocking_ast_nocheck(lock);
-}
-EXPORT_SYMBOL(ldlm_blocking_ast);
-
-/**
- * ->l_glimpse_ast() for DLM extent locks acquired on the server-side. See
- * comment in filter_intent_policy() on why you may need this.
- */
-int ldlm_glimpse_ast(struct ldlm_lock *lock, void *reqp)
-{
-	/*
-	 * Returning -ELDLM_NO_LOCK_DATA actually works, but the reason for
-	 * that is rather subtle: with OST-side locking, it may so happen that
-	 * _all_ extent locks are held by the OST. If client wants to obtain
-	 * current file size it calls ll{,u}_glimpse_size(), and (as locks are
-	 * on the server), dummy glimpse callback fires and does
-	 * nothing. Client still receives correct file size due to the
-	 * following fragment in filter_intent_policy():
-	 *
-	 * rc = l->l_glimpse_ast(l, NULL); // this will update the LVB
-	 * if (rc != 0 && res->lr_namespace->ns_lvbo &&
-	 *     res->lr_namespace->ns_lvbo->lvbo_update) {
-	 *	 res->lr_namespace->ns_lvbo->lvbo_update(res, NULL, 0, 1);
-	 * }
-	 *
-	 * that is, after glimpse_ast() fails, filter_lvbo_update() runs, and
-	 * returns correct file size to the client.
-	 */
-	return -ELDLM_NO_LOCK_DATA;
-}
-EXPORT_SYMBOL(ldlm_glimpse_ast);
-
-/**
- * Enqueue a local lock (typically on a server).
- */
-int ldlm_cli_enqueue_local(struct ldlm_namespace *ns,
-			   const struct ldlm_res_id *res_id,
-			   ldlm_type_t type, ldlm_policy_data_t *policy,
-			   ldlm_mode_t mode, __u64 *flags,
-			   ldlm_blocking_callback blocking,
-			   ldlm_completion_callback completion,
-			   ldlm_glimpse_callback glimpse,
-			   void *data, __u32 lvb_len, enum lvb_type lvb_type,
-			   const __u64 *client_cookie,
-			   struct lustre_handle *lockh)
-{
-	struct ldlm_lock *lock;
-	int err;
-	const struct ldlm_callback_suite cbs = { .lcs_completion = completion,
-						 .lcs_blocking   = blocking,
-						 .lcs_glimpse    = glimpse,
-	};
-
-	LASSERT(!(*flags & LDLM_FL_REPLAY));
-	if (unlikely(ns_is_client(ns))) {
-		CERROR("Trying to enqueue local lock in a shadow namespace\n");
-		LBUG();
-	}
-
-	lock = ldlm_lock_create(ns, res_id, type, mode, &cbs, data, lvb_len,
-				lvb_type);
-	if (unlikely(!lock)) {
-		err = -ENOMEM;
-		goto out_nolock;
-	}
-
-	ldlm_lock2handle(lock, lockh);
-
-	/* NB: we don't have any lock now (lock_res_and_lock)
-	 * because it's a new lock */
-	ldlm_lock_addref_internal_nolock(lock, mode);
-	lock->l_flags |= LDLM_FL_LOCAL;
-	if (*flags & LDLM_FL_ATOMIC_CB)
-		lock->l_flags |= LDLM_FL_ATOMIC_CB;
-
-	if (policy != NULL)
-		lock->l_policy_data = *policy;
-	if (client_cookie != NULL)
-		lock->l_client_cookie = *client_cookie;
-	if (type == LDLM_EXTENT)
-		lock->l_req_extent = policy->l_extent;
-
-	err = ldlm_lock_enqueue(ns, &lock, policy, flags);
-	if (unlikely(err != ELDLM_OK))
-		goto out;
-
-	if (policy != NULL)
-		*policy = lock->l_policy_data;
-
-	if (lock->l_completion_ast)
-		lock->l_completion_ast(lock, *flags, NULL);
-
-	LDLM_DEBUG(lock, "client-side local enqueue handler, new lock created");
- out:
-	LDLM_LOCK_RELEASE(lock);
- out_nolock:
-	return err;
-}
-EXPORT_SYMBOL(ldlm_cli_enqueue_local);
-
-static void failed_lock_cleanup(struct ldlm_namespace *ns,
-				struct ldlm_lock *lock, int mode)
-{
-	int need_cancel = 0;
-
-	/* Set a flag to prevent us from sending a CANCEL (bug 407) */
-	lock_res_and_lock(lock);
-	/* Check that lock is not granted or failed, we might race. */
-	if ((lock->l_req_mode != lock->l_granted_mode) &&
-	    !(lock->l_flags & LDLM_FL_FAILED)) {
-		/* Make sure that this lock will not be found by raced
-		 * bl_ast and -EINVAL reply is sent to server anyways.
-		 * bug 17645 */
-		lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_FAILED |
-				 LDLM_FL_ATOMIC_CB | LDLM_FL_CBPENDING;
-		need_cancel = 1;
-	}
-	unlock_res_and_lock(lock);
-
-	if (need_cancel)
-		LDLM_DEBUG(lock,
-			   "setting FL_LOCAL_ONLY | LDLM_FL_FAILED | LDLM_FL_ATOMIC_CB | LDLM_FL_CBPENDING");
-	else
-		LDLM_DEBUG(lock, "lock was granted or failed in race");
-
-	ldlm_lock_decref_internal(lock, mode);
-
-	/* XXX - HACK because we shouldn't call ldlm_lock_destroy()
-	 *       from llite/file.c/ll_file_flock(). */
-	/* This code makes for the fact that we do not have blocking handler on
-	 * a client for flock locks. As such this is the place where we must
-	 * completely kill failed locks. (interrupted and those that
-	 * were waiting to be granted when server evicted us. */
-	if (lock->l_resource->lr_type == LDLM_FLOCK) {
-		lock_res_and_lock(lock);
-		ldlm_resource_unlink_lock(lock);
-		ldlm_lock_destroy_nolock(lock);
-		unlock_res_and_lock(lock);
-	}
-}
-
-/**
- * Finishing portion of client lock enqueue code.
- *
- * Called after receiving reply from server.
- */
-int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
-			  ldlm_type_t type, __u8 with_policy, ldlm_mode_t mode,
-			  __u64 *flags, void *lvb, __u32 lvb_len,
-			  struct lustre_handle *lockh, int rc)
-{
-	struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
-	int is_replay = *flags & LDLM_FL_REPLAY;
-	struct ldlm_lock *lock;
-	struct ldlm_reply *reply;
-	int cleanup_phase = 1;
-	int size = 0;
-
-	lock = ldlm_handle2lock(lockh);
-	/* ldlm_cli_enqueue is holding a reference on this lock. */
-	if (!lock) {
-		LASSERT(type == LDLM_FLOCK);
-		return -ENOLCK;
-	}
-
-	LASSERTF(ergo(lvb_len != 0, lvb_len == lock->l_lvb_len),
-		 "lvb_len = %d, l_lvb_len = %d\n", lvb_len, lock->l_lvb_len);
-
-	if (rc != ELDLM_OK) {
-		LASSERT(!is_replay);
-		LDLM_DEBUG(lock, "client-side enqueue END (%s)",
-			   rc == ELDLM_LOCK_ABORTED ? "ABORTED" : "FAILED");
-
-		if (rc != ELDLM_LOCK_ABORTED)
-			goto cleanup;
-	}
-
-	/* Before we return, swab the reply */
-	reply = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	if (reply == NULL) {
-		rc = -EPROTO;
-		goto cleanup;
-	}
-
-	if (lvb_len != 0) {
-		LASSERT(lvb != NULL);
-
-		size = req_capsule_get_size(&req->rq_pill, &RMF_DLM_LVB,
-					    RCL_SERVER);
-		if (size < 0) {
-			LDLM_ERROR(lock, "Fail to get lvb_len, rc = %d", size);
-			rc = size;
-			goto cleanup;
-		} else if (unlikely(size > lvb_len)) {
-			LDLM_ERROR(lock, "Replied LVB is larger than expectation, expected = %d, replied = %d",
-				   lvb_len, size);
-			rc = -EINVAL;
-			goto cleanup;
-		}
-	}
-
-	if (rc == ELDLM_LOCK_ABORTED) {
-		if (lvb_len != 0)
-			rc = ldlm_fill_lvb(lock, &req->rq_pill, RCL_SERVER,
-					   lvb, size);
-		if (rc == 0)
-			rc = ELDLM_LOCK_ABORTED;
-		goto cleanup;
-	}
-
-	/* lock enqueued on the server */
-	cleanup_phase = 0;
-
-	lock_res_and_lock(lock);
-	/* Key change rehash lock in per-export hash with new key */
-	if (exp->exp_lock_hash) {
-		/* In the function below, .hs_keycmp resolves to
-		 * ldlm_export_lock_keycmp() */
-		/* coverity[overrun-buffer-val] */
-		cfs_hash_rehash_key(exp->exp_lock_hash,
-				    &lock->l_remote_handle,
-				    &reply->lock_handle,
-				    &lock->l_exp_hash);
-	} else {
-		lock->l_remote_handle = reply->lock_handle;
-	}
-
-	*flags = ldlm_flags_from_wire(reply->lock_flags);
-	lock->l_flags |= ldlm_flags_from_wire(reply->lock_flags &
-					      LDLM_INHERIT_FLAGS);
-	/* move NO_TIMEOUT flag to the lock to force ldlm_lock_match()
-	 * to wait with no timeout as well */
-	lock->l_flags |= ldlm_flags_from_wire(reply->lock_flags &
-					      LDLM_FL_NO_TIMEOUT);
-	unlock_res_and_lock(lock);
-
-	CDEBUG(D_INFO, "local: %p, remote cookie: %#llx, flags: 0x%llx\n",
-	       lock, reply->lock_handle.cookie, *flags);
-
-	/* If enqueue returned a blocked lock but the completion handler has
-	 * already run, then it fixed up the resource and we don't need to do it
-	 * again. */
-	if ((*flags) & LDLM_FL_LOCK_CHANGED) {
-		int newmode = reply->lock_desc.l_req_mode;
-
-		LASSERT(!is_replay);
-		if (newmode && newmode != lock->l_req_mode) {
-			LDLM_DEBUG(lock, "server returned different mode %s",
-				   ldlm_lockname[newmode]);
-			lock->l_req_mode = newmode;
-		}
-
-		if (!ldlm_res_eq(&reply->lock_desc.l_resource.lr_name,
-				 &lock->l_resource->lr_name)) {
-			CDEBUG(D_INFO, "remote intent success, locking "DLDLMRES
-				       " instead of "DLDLMRES"\n",
-			       PLDLMRES(&reply->lock_desc.l_resource),
-			       PLDLMRES(lock->l_resource));
-
-			rc = ldlm_lock_change_resource(ns, lock,
-					&reply->lock_desc.l_resource.lr_name);
-			if (rc || lock->l_resource == NULL) {
-				rc = -ENOMEM;
-				goto cleanup;
-			}
-			LDLM_DEBUG(lock, "client-side enqueue, new resource");
-		}
-		if (with_policy)
-			if (!(type == LDLM_IBITS &&
-			      !(exp_connect_flags(exp) & OBD_CONNECT_IBITS)))
-				/* We assume lock type cannot change on server*/
-				ldlm_convert_policy_to_local(exp,
-						lock->l_resource->lr_type,
-						&reply->lock_desc.l_policy_data,
-						&lock->l_policy_data);
-		if (type != LDLM_PLAIN)
-			LDLM_DEBUG(lock,
-				   "client-side enqueue, new policy data");
-	}
-
-	if ((*flags) & LDLM_FL_AST_SENT ||
-	    /* Cancel extent locks as soon as possible on a liblustre client,
-	     * because it cannot handle asynchronous ASTs robustly (see
-	     * bug 7311). */
-	    (LIBLUSTRE_CLIENT && type == LDLM_EXTENT)) {
-		lock_res_and_lock(lock);
-		lock->l_flags |= LDLM_FL_CBPENDING |  LDLM_FL_BL_AST;
-		unlock_res_and_lock(lock);
-		LDLM_DEBUG(lock, "enqueue reply includes blocking AST");
-	}
-
-	/* If the lock has already been granted by a completion AST, don't
-	 * clobber the LVB with an older one. */
-	if (lvb_len != 0) {
-		/* We must lock or a racing completion might update lvb without
-		 * letting us know and we'll clobber the correct value.
-		 * Cannot unlock after the check either, a that still leaves
-		 * a tiny window for completion to get in */
-		lock_res_and_lock(lock);
-		if (lock->l_req_mode != lock->l_granted_mode)
-			rc = ldlm_fill_lvb(lock, &req->rq_pill, RCL_SERVER,
-					   lock->l_lvb_data, size);
-		unlock_res_and_lock(lock);
-		if (rc < 0) {
-			cleanup_phase = 1;
-			goto cleanup;
-		}
-	}
-
-	if (!is_replay) {
-		rc = ldlm_lock_enqueue(ns, &lock, NULL, flags);
-		if (lock->l_completion_ast != NULL) {
-			int err = lock->l_completion_ast(lock, *flags, NULL);
-
-			if (!rc)
-				rc = err;
-			if (rc)
-				cleanup_phase = 1;
-		}
-	}
-
-	if (lvb_len && lvb != NULL) {
-		/* Copy the LVB here, and not earlier, because the completion
-		 * AST (if any) can override what we got in the reply */
-		memcpy(lvb, lock->l_lvb_data, lvb_len);
-	}
-
-	LDLM_DEBUG(lock, "client-side enqueue END");
-cleanup:
-	if (cleanup_phase == 1 && rc)
-		failed_lock_cleanup(ns, lock, mode);
-	/* Put lock 2 times, the second reference is held by ldlm_cli_enqueue */
-	LDLM_LOCK_PUT(lock);
-	LDLM_LOCK_RELEASE(lock);
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_cli_enqueue_fini);
-
-/**
- * Estimate number of lock handles that would fit into request of given
- * size.  PAGE_SIZE-512 is to allow TCP/IP and LNET headers to fit into
- * a single page on the send/receive side. XXX: 512 should be changed to
- * more adequate value.
- */
-static inline int ldlm_req_handles_avail(int req_size, int off)
-{
-	int avail;
-
-	avail = min_t(int, LDLM_MAXREQSIZE, PAGE_CACHE_SIZE - 512) - req_size;
-	if (likely(avail >= 0))
-		avail /= (int)sizeof(struct lustre_handle);
-	else
-		avail = 0;
-	avail += LDLM_LOCKREQ_HANDLES - off;
-
-	return avail;
-}
-
-static inline int ldlm_capsule_handles_avail(struct req_capsule *pill,
-					     enum req_location loc,
-					     int off)
-{
-	int size = req_capsule_msg_size(pill, loc);
-
-	return ldlm_req_handles_avail(size, off);
-}
-
-static inline int ldlm_format_handles_avail(struct obd_import *imp,
-					    const struct req_format *fmt,
-					    enum req_location loc, int off)
-{
-	int size = req_capsule_fmt_size(imp->imp_msg_magic, fmt, loc);
-
-	return ldlm_req_handles_avail(size, off);
-}
-
-/**
- * Cancel LRU locks and pack them into the enqueue request. Pack there the given
- * \a count locks in \a cancels.
- *
- * This is to be called by functions preparing their own requests that
- * might contain lists of locks to cancel in addition to actual operation
- * that needs to be performed.
- */
-int ldlm_prep_elc_req(struct obd_export *exp, struct ptlrpc_request *req,
-		      int version, int opc, int canceloff,
-		      struct list_head *cancels, int count)
-{
-	struct ldlm_namespace   *ns = exp->exp_obd->obd_namespace;
-	struct req_capsule      *pill = &req->rq_pill;
-	struct ldlm_request     *dlm = NULL;
-	int flags, avail, to_free, pack = 0;
-	LIST_HEAD(head);
-	int rc;
-
-	if (cancels == NULL)
-		cancels = &head;
-	if (ns_connect_cancelset(ns)) {
-		/* Estimate the amount of available space in the request. */
-		req_capsule_filled_sizes(pill, RCL_CLIENT);
-		avail = ldlm_capsule_handles_avail(pill, RCL_CLIENT, canceloff);
-
-		flags = ns_connect_lru_resize(ns) ?
-			LDLM_CANCEL_LRUR : LDLM_CANCEL_AGED;
-		to_free = !ns_connect_lru_resize(ns) &&
-			  opc == LDLM_ENQUEUE ? 1 : 0;
-
-		/* Cancel LRU locks here _only_ if the server supports
-		 * EARLY_CANCEL. Otherwise we have to send extra CANCEL
-		 * RPC, which will make us slower. */
-		if (avail > count)
-			count += ldlm_cancel_lru_local(ns, cancels, to_free,
-						       avail - count, 0, flags);
-		if (avail > count)
-			pack = count;
-		else
-			pack = avail;
-		req_capsule_set_size(pill, &RMF_DLM_REQ, RCL_CLIENT,
-				     ldlm_request_bufsize(pack, opc));
-	}
-
-	rc = ptlrpc_request_pack(req, version, opc);
-	if (rc) {
-		ldlm_lock_list_put(cancels, l_bl_ast, count);
-		return rc;
-	}
-
-	if (ns_connect_cancelset(ns)) {
-		if (canceloff) {
-			dlm = req_capsule_client_get(pill, &RMF_DLM_REQ);
-			LASSERT(dlm);
-			/* Skip first lock handler in ldlm_request_pack(),
-			 * this method will increment @lock_count according
-			 * to the lock handle amount actually written to
-			 * the buffer. */
-			dlm->lock_count = canceloff;
-		}
-		/* Pack into the request @pack lock handles. */
-		ldlm_cli_cancel_list(cancels, pack, req, 0);
-		/* Prepare and send separate cancel RPC for others. */
-		ldlm_cli_cancel_list(cancels, count - pack, NULL, 0);
-	} else {
-		ldlm_lock_list_put(cancels, l_bl_ast, count);
-	}
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_prep_elc_req);
-
-int ldlm_prep_enqueue_req(struct obd_export *exp, struct ptlrpc_request *req,
-			  struct list_head *cancels, int count)
-{
-	return ldlm_prep_elc_req(exp, req, LUSTRE_DLM_VERSION, LDLM_ENQUEUE,
-				 LDLM_ENQUEUE_CANCEL_OFF, cancels, count);
-}
-EXPORT_SYMBOL(ldlm_prep_enqueue_req);
-
-struct ptlrpc_request *ldlm_enqueue_pack(struct obd_export *exp, int lvb_len)
-{
-	struct ptlrpc_request *req;
-	int rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LDLM_ENQUEUE);
-	if (req == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	rc = ldlm_prep_enqueue_req(exp, req, NULL, 0);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return ERR_PTR(rc);
-	}
-
-	req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER, lvb_len);
-	ptlrpc_request_set_replen(req);
-	return req;
-}
-EXPORT_SYMBOL(ldlm_enqueue_pack);
-
-/**
- * Client-side lock enqueue.
- *
- * If a request has some specific initialisation it is passed in \a reqp,
- * otherwise it is created in ldlm_cli_enqueue.
- *
- * Supports sync and async requests, pass \a async flag accordingly. If a
- * request was created in ldlm_cli_enqueue and it is the async request,
- * pass it to the caller in \a reqp.
- */
-int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
-		     struct ldlm_enqueue_info *einfo,
-		     const struct ldlm_res_id *res_id,
-		     ldlm_policy_data_t const *policy, __u64 *flags,
-		     void *lvb, __u32 lvb_len, enum lvb_type lvb_type,
-		     struct lustre_handle *lockh, int async)
-{
-	struct ldlm_namespace *ns;
-	struct ldlm_lock      *lock;
-	struct ldlm_request   *body;
-	int		    is_replay = *flags & LDLM_FL_REPLAY;
-	int		    req_passed_in = 1;
-	int		    rc, err;
-	struct ptlrpc_request *req;
-
-	LASSERT(exp != NULL);
-
-	ns = exp->exp_obd->obd_namespace;
-
-	/* If we're replaying this lock, just check some invariants.
-	 * If we're creating a new lock, get everything all setup nice. */
-	if (is_replay) {
-		lock = ldlm_handle2lock_long(lockh, 0);
-		LASSERT(lock != NULL);
-		LDLM_DEBUG(lock, "client-side enqueue START");
-		LASSERT(exp == lock->l_conn_export);
-	} else {
-		const struct ldlm_callback_suite cbs = {
-			.lcs_completion = einfo->ei_cb_cp,
-			.lcs_blocking	= einfo->ei_cb_bl,
-			.lcs_glimpse	= einfo->ei_cb_gl
-		};
-		lock = ldlm_lock_create(ns, res_id, einfo->ei_type,
-					einfo->ei_mode, &cbs, einfo->ei_cbdata,
-					lvb_len, lvb_type);
-		if (lock == NULL)
-			return -ENOMEM;
-		/* for the local lock, add the reference */
-		ldlm_lock_addref_internal(lock, einfo->ei_mode);
-		ldlm_lock2handle(lock, lockh);
-		if (policy != NULL)
-				lock->l_policy_data = *policy;
-
-		if (einfo->ei_type == LDLM_EXTENT)
-			lock->l_req_extent = policy->l_extent;
-		LDLM_DEBUG(lock, "client-side enqueue START, flags %llx\n",
-			   *flags);
-	}
-
-	lock->l_conn_export = exp;
-	lock->l_export = NULL;
-	lock->l_blocking_ast = einfo->ei_cb_bl;
-	lock->l_flags |= (*flags & (LDLM_FL_NO_LRU | LDLM_FL_EXCL));
-
-	/* lock not sent to server yet */
-
-	if (reqp == NULL || *reqp == NULL) {
-		req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
-						&RQF_LDLM_ENQUEUE,
-						LUSTRE_DLM_VERSION,
-						LDLM_ENQUEUE);
-		if (req == NULL) {
-			failed_lock_cleanup(ns, lock, einfo->ei_mode);
-			LDLM_LOCK_RELEASE(lock);
-			return -ENOMEM;
-		}
-		req_passed_in = 0;
-		if (reqp)
-			*reqp = req;
-	} else {
-		int len;
-
-		req = *reqp;
-		len = req_capsule_get_size(&req->rq_pill, &RMF_DLM_REQ,
-					   RCL_CLIENT);
-		LASSERTF(len >= sizeof(*body), "buflen[%d] = %d, not %d\n",
-			 DLM_LOCKREQ_OFF, len, (int)sizeof(*body));
-	}
-
-	/* Dump lock data into the request buffer */
-	body = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
-	ldlm_lock2desc(lock, &body->lock_desc);
-	body->lock_flags = ldlm_flags_to_wire(*flags);
-	body->lock_handle[0] = *lockh;
-
-	/* Continue as normal. */
-	if (!req_passed_in) {
-		if (lvb_len > 0)
-			req_capsule_extend(&req->rq_pill,
-					   &RQF_LDLM_ENQUEUE_LVB);
-		req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
-				     lvb_len);
-		ptlrpc_request_set_replen(req);
-	}
-
-	/*
-	 * Liblustre client doesn't get extent locks, except for O_APPEND case
-	 * where [0, OBD_OBJECT_EOF] lock is taken, or truncate, where
-	 * [i_size, OBD_OBJECT_EOF] lock is taken.
-	 */
-	LASSERT(ergo(LIBLUSTRE_CLIENT, einfo->ei_type != LDLM_EXTENT ||
-		     policy->l_extent.end == OBD_OBJECT_EOF));
-
-	if (async) {
-		LASSERT(reqp != NULL);
-		return 0;
-	}
-
-	LDLM_DEBUG(lock, "sending request");
-
-	rc = ptlrpc_queue_wait(req);
-
-	err = ldlm_cli_enqueue_fini(exp, req, einfo->ei_type, policy ? 1 : 0,
-				    einfo->ei_mode, flags, lvb, lvb_len,
-				    lockh, rc);
-
-	/* If ldlm_cli_enqueue_fini did not find the lock, we need to free
-	 * one reference that we took */
-	if (err == -ENOLCK)
-		LDLM_LOCK_RELEASE(lock);
-	else
-		rc = err;
-
-	if (!req_passed_in && req != NULL) {
-		ptlrpc_req_finished(req);
-		if (reqp)
-			*reqp = NULL;
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_cli_enqueue);
-
-static int ldlm_cli_convert_local(struct ldlm_lock *lock, int new_mode,
-				  __u32 *flags)
-{
-	struct ldlm_resource *res;
-	int rc;
-
-	if (ns_is_client(ldlm_lock_to_ns(lock))) {
-		CERROR("Trying to cancel local lock\n");
-		LBUG();
-	}
-	LDLM_DEBUG(lock, "client-side local convert");
-
-	res = ldlm_lock_convert(lock, new_mode, flags);
-	if (res) {
-		ldlm_reprocess_all(res);
-		rc = 0;
-	} else {
-		rc = LUSTRE_EDEADLK;
-	}
-	LDLM_DEBUG(lock, "client-side local convert handler END");
-	LDLM_LOCK_PUT(lock);
-	return rc;
-}
-
-/* FIXME: one of ldlm_cli_convert or the server side should reject attempted
- * conversion of locks which are on the waiting or converting queue */
-/* Caller of this code is supposed to take care of lock readers/writers
-   accounting */
-int ldlm_cli_convert(struct lustre_handle *lockh, int new_mode, __u32 *flags)
-{
-	struct ldlm_request   *body;
-	struct ldlm_reply     *reply;
-	struct ldlm_lock      *lock;
-	struct ldlm_resource  *res;
-	struct ptlrpc_request *req;
-	int		    rc;
-
-	lock = ldlm_handle2lock(lockh);
-	if (!lock) {
-		LBUG();
-		return -EINVAL;
-	}
-	*flags = 0;
-
-	if (lock->l_conn_export == NULL)
-		return ldlm_cli_convert_local(lock, new_mode, flags);
-
-	LDLM_DEBUG(lock, "client-side convert");
-
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(lock->l_conn_export),
-					&RQF_LDLM_CONVERT, LUSTRE_DLM_VERSION,
-					LDLM_CONVERT);
-	if (req == NULL) {
-		LDLM_LOCK_PUT(lock);
-		return -ENOMEM;
-	}
-
-	body = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
-	body->lock_handle[0] = lock->l_remote_handle;
-
-	body->lock_desc.l_req_mode = new_mode;
-	body->lock_flags = ldlm_flags_to_wire(*flags);
-
-
-	ptlrpc_request_set_replen(req);
-	rc = ptlrpc_queue_wait(req);
-	if (rc != ELDLM_OK)
-		goto out;
-
-	reply = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	if (reply == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	if (req->rq_status) {
-		rc = req->rq_status;
-		goto out;
-	}
-
-	res = ldlm_lock_convert(lock, new_mode, &reply->lock_flags);
-	if (res != NULL) {
-		ldlm_reprocess_all(res);
-		/* Go to sleep until the lock is granted. */
-		/* FIXME: or cancelled. */
-		if (lock->l_completion_ast) {
-			rc = lock->l_completion_ast(lock, LDLM_FL_WAIT_NOREPROC,
-						    NULL);
-			if (rc)
-				goto out;
-		}
-	} else {
-		rc = LUSTRE_EDEADLK;
-	}
- out:
-	LDLM_LOCK_PUT(lock);
-	ptlrpc_req_finished(req);
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_cli_convert);
-
-/**
- * Cancel locks locally.
- * Returns:
- * \retval LDLM_FL_LOCAL_ONLY if there is no need for a CANCEL RPC to the server
- * \retval LDLM_FL_CANCELING otherwise;
- * \retval LDLM_FL_BL_AST if there is a need for a separate CANCEL RPC.
- */
-static __u64 ldlm_cli_cancel_local(struct ldlm_lock *lock)
-{
-	__u64 rc = LDLM_FL_LOCAL_ONLY;
-
-	if (lock->l_conn_export) {
-		bool local_only;
-
-		LDLM_DEBUG(lock, "client-side cancel");
-		/* Set this flag to prevent others from getting new references*/
-		lock_res_and_lock(lock);
-		lock->l_flags |= LDLM_FL_CBPENDING;
-		local_only = !!(lock->l_flags &
-				(LDLM_FL_LOCAL_ONLY|LDLM_FL_CANCEL_ON_BLOCK));
-		ldlm_cancel_callback(lock);
-		rc = (lock->l_flags & LDLM_FL_BL_AST) ?
-			LDLM_FL_BL_AST : LDLM_FL_CANCELING;
-		unlock_res_and_lock(lock);
-
-		if (local_only) {
-			CDEBUG(D_DLMTRACE, "not sending request (at caller's instruction)\n");
-			rc = LDLM_FL_LOCAL_ONLY;
-		}
-		ldlm_lock_cancel(lock);
-	} else {
-		if (ns_is_client(ldlm_lock_to_ns(lock))) {
-			LDLM_ERROR(lock, "Trying to cancel local lock");
-			LBUG();
-		}
-		LDLM_DEBUG(lock, "server-side local cancel");
-		ldlm_lock_cancel(lock);
-		ldlm_reprocess_all(lock->l_resource);
-	}
-
-	return rc;
-}
-
-/**
- * Pack \a count locks in \a head into ldlm_request buffer of request \a req.
- */
-static void ldlm_cancel_pack(struct ptlrpc_request *req,
-			     struct list_head *head, int count)
-{
-	struct ldlm_request *dlm;
-	struct ldlm_lock *lock;
-	int max, packed = 0;
-
-	dlm = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
-	LASSERT(dlm != NULL);
-
-	/* Check the room in the request buffer. */
-	max = req_capsule_get_size(&req->rq_pill, &RMF_DLM_REQ, RCL_CLIENT) -
-		sizeof(struct ldlm_request);
-	max /= sizeof(struct lustre_handle);
-	max += LDLM_LOCKREQ_HANDLES;
-	LASSERT(max >= dlm->lock_count + count);
-
-	/* XXX: it would be better to pack lock handles grouped by resource.
-	 * so that the server cancel would call filter_lvbo_update() less
-	 * frequently. */
-	list_for_each_entry(lock, head, l_bl_ast) {
-		if (!count--)
-			break;
-		LASSERT(lock->l_conn_export);
-		/* Pack the lock handle to the given request buffer. */
-		LDLM_DEBUG(lock, "packing");
-		dlm->lock_handle[dlm->lock_count++] = lock->l_remote_handle;
-		packed++;
-	}
-	CDEBUG(D_DLMTRACE, "%d locks packed\n", packed);
-}
-
-/**
- * Prepare and send a batched cancel RPC. It will include \a count lock
- * handles of locks given in \a cancels list. */
-int ldlm_cli_cancel_req(struct obd_export *exp, struct list_head *cancels,
-			int count, ldlm_cancel_flags_t flags)
-{
-	struct ptlrpc_request *req = NULL;
-	struct obd_import *imp;
-	int free, sent = 0;
-	int rc = 0;
-
-	LASSERT(exp != NULL);
-	LASSERT(count > 0);
-
-	CFS_FAIL_TIMEOUT(OBD_FAIL_LDLM_PAUSE_CANCEL, cfs_fail_val);
-
-	if (CFS_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL_RACE))
-		return count;
-
-	free = ldlm_format_handles_avail(class_exp2cliimp(exp),
-					 &RQF_LDLM_CANCEL, RCL_CLIENT, 0);
-	if (count > free)
-		count = free;
-
-	while (1) {
-		imp = class_exp2cliimp(exp);
-		if (imp == NULL || imp->imp_invalid) {
-			CDEBUG(D_DLMTRACE,
-			       "skipping cancel on invalid import %p\n", imp);
-			return count;
-		}
-
-		req = ptlrpc_request_alloc(imp, &RQF_LDLM_CANCEL);
-		if (req == NULL) {
-			rc = -ENOMEM;
-			goto out;
-		}
-
-		req_capsule_filled_sizes(&req->rq_pill, RCL_CLIENT);
-		req_capsule_set_size(&req->rq_pill, &RMF_DLM_REQ, RCL_CLIENT,
-				     ldlm_request_bufsize(count, LDLM_CANCEL));
-
-		rc = ptlrpc_request_pack(req, LUSTRE_DLM_VERSION, LDLM_CANCEL);
-		if (rc) {
-			ptlrpc_request_free(req);
-			goto out;
-		}
-
-		req->rq_request_portal = LDLM_CANCEL_REQUEST_PORTAL;
-		req->rq_reply_portal = LDLM_CANCEL_REPLY_PORTAL;
-		ptlrpc_at_set_req_timeout(req);
-
-		ldlm_cancel_pack(req, cancels, count);
-
-		ptlrpc_request_set_replen(req);
-		if (flags & LCF_ASYNC) {
-			ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
-			sent = count;
-			goto out;
-		} else {
-			rc = ptlrpc_queue_wait(req);
-		}
-		if (rc == LUSTRE_ESTALE) {
-			CDEBUG(D_DLMTRACE, "client/server (nid %s) out of sync -- not fatal\n",
-			       libcfs_nid2str(req->rq_import->
-					      imp_connection->c_peer.nid));
-			rc = 0;
-		} else if (rc == -ETIMEDOUT && /* check there was no reconnect*/
-			   req->rq_import_generation == imp->imp_generation) {
-			ptlrpc_req_finished(req);
-			continue;
-		} else if (rc != ELDLM_OK) {
-			/* -ESHUTDOWN is common on umount */
-			CDEBUG_LIMIT(rc == -ESHUTDOWN ? D_DLMTRACE : D_ERROR,
-				     "Got rc %d from cancel RPC: canceling anyway\n",
-				     rc);
-			break;
-		}
-		sent = count;
-		break;
-	}
-
-	ptlrpc_req_finished(req);
-out:
-	return sent ? sent : rc;
-}
-EXPORT_SYMBOL(ldlm_cli_cancel_req);
-
-static inline struct ldlm_pool *ldlm_imp2pl(struct obd_import *imp)
-{
-	LASSERT(imp != NULL);
-	return &imp->imp_obd->obd_namespace->ns_pool;
-}
-
-/**
- * Update client's OBD pool related fields with new SLV and Limit from \a req.
- */
-int ldlm_cli_update_pool(struct ptlrpc_request *req)
-{
-	struct obd_device *obd;
-	__u64 new_slv;
-	__u32 new_limit;
-
-	if (unlikely(!req->rq_import || !req->rq_import->imp_obd ||
-		     !imp_connect_lru_resize(req->rq_import))) {
-		/*
-		 * Do nothing for corner cases.
-		 */
-		return 0;
-	}
-
-	/* In some cases RPC may contain SLV and limit zeroed out. This
-	 * is the case when server does not support LRU resize feature.
-	 * This is also possible in some recovery cases when server-side
-	 * reqs have no reference to the OBD export and thus access to
-	 * server-side namespace is not possible. */
-	if (lustre_msg_get_slv(req->rq_repmsg) == 0 ||
-	    lustre_msg_get_limit(req->rq_repmsg) == 0) {
-		DEBUG_REQ(D_HA, req,
-			  "Zero SLV or Limit found (SLV: %llu, Limit: %u)",
-			  lustre_msg_get_slv(req->rq_repmsg),
-			  lustre_msg_get_limit(req->rq_repmsg));
-		return 0;
-	}
-
-	new_limit = lustre_msg_get_limit(req->rq_repmsg);
-	new_slv = lustre_msg_get_slv(req->rq_repmsg);
-	obd = req->rq_import->imp_obd;
-
-	/* Set new SLV and limit in OBD fields to make them accessible
-	 * to the pool thread. We do not access obd_namespace and pool
-	 * directly here as there is no reliable way to make sure that
-	 * they are still alive at cleanup time. Evil races are possible
-	 * which may cause Oops at that time. */
-	write_lock(&obd->obd_pool_lock);
-	obd->obd_pool_slv = new_slv;
-	obd->obd_pool_limit = new_limit;
-	write_unlock(&obd->obd_pool_lock);
-
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_cli_update_pool);
-
-/**
- * Client side lock cancel.
- *
- * Lock must not have any readers or writers by this time.
- */
-int ldlm_cli_cancel(struct lustre_handle *lockh,
-		    ldlm_cancel_flags_t cancel_flags)
-{
-	struct obd_export *exp;
-	int avail, flags, count = 1;
-	__u64 rc = 0;
-	struct ldlm_namespace *ns;
-	struct ldlm_lock *lock;
-	LIST_HEAD(cancels);
-
-	/* concurrent cancels on the same handle can happen */
-	lock = ldlm_handle2lock_long(lockh, LDLM_FL_CANCELING);
-	if (lock == NULL) {
-		LDLM_DEBUG_NOLOCK("lock is already being destroyed\n");
-		return 0;
-	}
-
-	rc = ldlm_cli_cancel_local(lock);
-	if (rc == LDLM_FL_LOCAL_ONLY || cancel_flags & LCF_LOCAL) {
-		LDLM_LOCK_RELEASE(lock);
-		return 0;
-	}
-	/* Even if the lock is marked as LDLM_FL_BL_AST, this is a LDLM_CANCEL
-	 * RPC which goes to canceld portal, so we can cancel other LRU locks
-	 * here and send them all as one LDLM_CANCEL RPC. */
-	LASSERT(list_empty(&lock->l_bl_ast));
-	list_add(&lock->l_bl_ast, &cancels);
-
-	exp = lock->l_conn_export;
-	if (exp_connect_cancelset(exp)) {
-		avail = ldlm_format_handles_avail(class_exp2cliimp(exp),
-						  &RQF_LDLM_CANCEL,
-						  RCL_CLIENT, 0);
-		LASSERT(avail > 0);
-
-		ns = ldlm_lock_to_ns(lock);
-		flags = ns_connect_lru_resize(ns) ?
-			LDLM_CANCEL_LRUR : LDLM_CANCEL_AGED;
-		count += ldlm_cancel_lru_local(ns, &cancels, 0, avail - 1,
-					       LCF_BL_AST, flags);
-	}
-	ldlm_cli_cancel_list(&cancels, count, NULL, cancel_flags);
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_cli_cancel);
-
-/**
- * Locally cancel up to \a count locks in list \a cancels.
- * Return the number of cancelled locks.
- */
-int ldlm_cli_cancel_list_local(struct list_head *cancels, int count,
-			       ldlm_cancel_flags_t flags)
-{
-	LIST_HEAD(head);
-	struct ldlm_lock *lock, *next;
-	int left = 0, bl_ast = 0;
-	__u64 rc;
-
-	left = count;
-	list_for_each_entry_safe(lock, next, cancels, l_bl_ast) {
-		if (left-- == 0)
-			break;
-
-		if (flags & LCF_LOCAL) {
-			rc = LDLM_FL_LOCAL_ONLY;
-			ldlm_lock_cancel(lock);
-		} else {
-			rc = ldlm_cli_cancel_local(lock);
-		}
-		/* Until we have compound requests and can send LDLM_CANCEL
-		 * requests batched with generic RPCs, we need to send cancels
-		 * with the LDLM_FL_BL_AST flag in a separate RPC from
-		 * the one being generated now. */
-		if (!(flags & LCF_BL_AST) && (rc == LDLM_FL_BL_AST)) {
-			LDLM_DEBUG(lock, "Cancel lock separately");
-			list_del_init(&lock->l_bl_ast);
-			list_add(&lock->l_bl_ast, &head);
-			bl_ast++;
-			continue;
-		}
-		if (rc == LDLM_FL_LOCAL_ONLY) {
-			/* CANCEL RPC should not be sent to server. */
-			list_del_init(&lock->l_bl_ast);
-			LDLM_LOCK_RELEASE(lock);
-			count--;
-		}
-	}
-	if (bl_ast > 0) {
-		count -= bl_ast;
-		ldlm_cli_cancel_list(&head, bl_ast, NULL, 0);
-	}
-
-	return count;
-}
-EXPORT_SYMBOL(ldlm_cli_cancel_list_local);
-
-/**
- * Cancel as many locks as possible w/o sending any RPCs (e.g. to write back
- * dirty data, to close a file, ...) or waiting for any RPCs in-flight (e.g.
- * readahead requests, ...)
- */
-static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns,
-						    struct ldlm_lock *lock,
-						    int unused, int added,
-						    int count)
-{
-	ldlm_policy_res_t result = LDLM_POLICY_CANCEL_LOCK;
-	ldlm_cancel_for_recovery cb = ns->ns_cancel_for_recovery;
-
-	lock_res_and_lock(lock);
-
-	/* don't check added & count since we want to process all locks
-	 * from unused list */
-	switch (lock->l_resource->lr_type) {
-	case LDLM_EXTENT:
-	case LDLM_IBITS:
-		if (cb && cb(lock))
-			break;
-	default:
-		result = LDLM_POLICY_SKIP_LOCK;
-		lock->l_flags |= LDLM_FL_SKIPPED;
-		break;
-	}
-
-	unlock_res_and_lock(lock);
-	return result;
-}
-
-/**
- * Callback function for LRU-resize policy. Decides whether to keep
- * \a lock in LRU for current \a LRU size \a unused, added in current
- * scan \a added and number of locks to be preferably canceled \a count.
- *
- * \retval LDLM_POLICY_KEEP_LOCK keep lock in LRU in stop scanning
- *
- * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU
- */
-static ldlm_policy_res_t ldlm_cancel_lrur_policy(struct ldlm_namespace *ns,
-						 struct ldlm_lock *lock,
-						 int unused, int added,
-						 int count)
-{
-	unsigned long cur = cfs_time_current();
-	struct ldlm_pool *pl = &ns->ns_pool;
-	__u64 slv, lvf, lv;
-	unsigned long la;
-
-	/* Stop LRU processing when we reach past @count or have checked all
-	 * locks in LRU. */
-	if (count && added >= count)
-		return LDLM_POLICY_KEEP_LOCK;
-
-	slv = ldlm_pool_get_slv(pl);
-	lvf = ldlm_pool_get_lvf(pl);
-	la = cfs_duration_sec(cfs_time_sub(cur,
-			      lock->l_last_used));
-	lv = lvf * la * unused;
-
-	/* Inform pool about current CLV to see it via debugfs. */
-	ldlm_pool_set_clv(pl, lv);
-
-	/* Stop when SLV is not yet come from server or lv is smaller than
-	 * it is. */
-	return (slv == 0 || lv < slv) ?
-		LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
-}
-
-/**
- * Callback function for debugfs used policy. Makes decision whether to keep
- * \a lock in LRU for current \a LRU size \a unused, added in current scan \a
- * added and number of locks to be preferably canceled \a count.
- *
- * \retval LDLM_POLICY_KEEP_LOCK keep lock in LRU in stop scanning
- *
- * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU
- */
-static ldlm_policy_res_t ldlm_cancel_passed_policy(struct ldlm_namespace *ns,
-						   struct ldlm_lock *lock,
-						   int unused, int added,
-						   int count)
-{
-	/* Stop LRU processing when we reach past @count or have checked all
-	 * locks in LRU. */
-	return (added >= count) ?
-		LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
-}
-
-/**
- * Callback function for aged policy. Makes decision whether to keep \a lock in
- * LRU for current LRU size \a unused, added in current scan \a added and
- * number of locks to be preferably canceled \a count.
- *
- * \retval LDLM_POLICY_KEEP_LOCK keep lock in LRU in stop scanning
- *
- * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU
- */
-static ldlm_policy_res_t ldlm_cancel_aged_policy(struct ldlm_namespace *ns,
-						 struct ldlm_lock *lock,
-						 int unused, int added,
-						 int count)
-{
-	/* Stop LRU processing if young lock is found and we reach past count */
-	return ((added >= count) &&
-		time_before(cfs_time_current(),
-			    cfs_time_add(lock->l_last_used, ns->ns_max_age))) ?
-		LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
-}
-
-/**
- * Callback function for default policy. Makes decision whether to keep \a lock
- * in LRU for current LRU size \a unused, added in current scan \a added and
- * number of locks to be preferably canceled \a count.
- *
- * \retval LDLM_POLICY_KEEP_LOCK keep lock in LRU in stop scanning
- *
- * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU
- */
-static ldlm_policy_res_t ldlm_cancel_default_policy(struct ldlm_namespace *ns,
-						    struct ldlm_lock *lock,
-						    int unused, int added,
-						    int count)
-{
-	/* Stop LRU processing when we reach past count or have checked all
-	 * locks in LRU. */
-	return (added >= count) ?
-		LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK;
-}
-
-typedef ldlm_policy_res_t (*ldlm_cancel_lru_policy_t)(struct ldlm_namespace *,
-						      struct ldlm_lock *, int,
-						      int, int);
-
-static ldlm_cancel_lru_policy_t
-ldlm_cancel_lru_policy(struct ldlm_namespace *ns, int flags)
-{
-	if (flags & LDLM_CANCEL_NO_WAIT)
-		return ldlm_cancel_no_wait_policy;
-
-	if (ns_connect_lru_resize(ns)) {
-		if (flags & LDLM_CANCEL_SHRINK)
-			/* We kill passed number of old locks. */
-			return ldlm_cancel_passed_policy;
-		else if (flags & LDLM_CANCEL_LRUR)
-			return ldlm_cancel_lrur_policy;
-		else if (flags & LDLM_CANCEL_PASSED)
-			return ldlm_cancel_passed_policy;
-	} else {
-		if (flags & LDLM_CANCEL_AGED)
-			return ldlm_cancel_aged_policy;
-	}
-
-	return ldlm_cancel_default_policy;
-}
-
-/**
- * - Free space in LRU for \a count new locks,
- *   redundant unused locks are canceled locally;
- * - also cancel locally unused aged locks;
- * - do not cancel more than \a max locks;
- * - GET the found locks and add them into the \a cancels list.
- *
- * A client lock can be added to the l_bl_ast list only when it is
- * marked LDLM_FL_CANCELING. Otherwise, somebody is already doing
- * CANCEL.  There are the following use cases:
- * ldlm_cancel_resource_local(), ldlm_cancel_lru_local() and
- * ldlm_cli_cancel(), which check and set this flag properly. As any
- * attempt to cancel a lock rely on this flag, l_bl_ast list is accessed
- * later without any special locking.
- *
- * Calling policies for enabled LRU resize:
- * ----------------------------------------
- * flags & LDLM_CANCEL_LRUR - use LRU resize policy (SLV from server) to
- *			    cancel not more than \a count locks;
- *
- * flags & LDLM_CANCEL_PASSED - cancel \a count number of old locks (located at
- *			      the beginning of LRU list);
- *
- * flags & LDLM_CANCEL_SHRINK - cancel not more than \a count locks according to
- *			      memory pressure policy function;
- *
- * flags & LDLM_CANCEL_AGED - cancel \a count locks according to "aged policy".
- *
- * flags & LDLM_CANCEL_NO_WAIT - cancel as many unused locks as possible
- *			       (typically before replaying locks) w/o
- *			       sending any RPCs or waiting for any
- *			       outstanding RPC to complete.
- */
-static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
-				 struct list_head *cancels, int count, int max,
-				 int flags)
-{
-	ldlm_cancel_lru_policy_t pf;
-	struct ldlm_lock *lock, *next;
-	int added = 0, unused, remained;
-
-	spin_lock(&ns->ns_lock);
-	unused = ns->ns_nr_unused;
-	remained = unused;
-
-	if (!ns_connect_lru_resize(ns))
-		count += unused - ns->ns_max_unused;
-
-	pf = ldlm_cancel_lru_policy(ns, flags);
-	LASSERT(pf != NULL);
-
-	while (!list_empty(&ns->ns_unused_list)) {
-		ldlm_policy_res_t result;
-
-		/* all unused locks */
-		if (remained-- <= 0)
-			break;
-
-		/* For any flags, stop scanning if @max is reached. */
-		if (max && added >= max)
-			break;
-
-		list_for_each_entry_safe(lock, next, &ns->ns_unused_list,
-					     l_lru) {
-			/* No locks which got blocking requests. */
-			LASSERT(!(lock->l_flags & LDLM_FL_BL_AST));
-
-			if (flags & LDLM_CANCEL_NO_WAIT &&
-			    lock->l_flags & LDLM_FL_SKIPPED)
-				/* already processed */
-				continue;
-
-			/* Somebody is already doing CANCEL. No need for this
-			 * lock in LRU, do not traverse it again. */
-			if (!(lock->l_flags & LDLM_FL_CANCELING))
-				break;
-
-			ldlm_lock_remove_from_lru_nolock(lock);
-		}
-		if (&lock->l_lru == &ns->ns_unused_list)
-			break;
-
-		LDLM_LOCK_GET(lock);
-		spin_unlock(&ns->ns_lock);
-		lu_ref_add(&lock->l_reference, __func__, current);
-
-		/* Pass the lock through the policy filter and see if it
-		 * should stay in LRU.
-		 *
-		 * Even for shrinker policy we stop scanning if
-		 * we find a lock that should stay in the cache.
-		 * We should take into account lock age anyway
-		 * as a new lock is a valuable resource even if
-		 * it has a low weight.
-		 *
-		 * That is, for shrinker policy we drop only
-		 * old locks, but additionally choose them by
-		 * their weight. Big extent locks will stay in
-		 * the cache. */
-		result = pf(ns, lock, unused, added, count);
-		if (result == LDLM_POLICY_KEEP_LOCK) {
-			lu_ref_del(&lock->l_reference,
-				   __func__, current);
-			LDLM_LOCK_RELEASE(lock);
-			spin_lock(&ns->ns_lock);
-			break;
-		}
-		if (result == LDLM_POLICY_SKIP_LOCK) {
-			lu_ref_del(&lock->l_reference,
-				   __func__, current);
-			LDLM_LOCK_RELEASE(lock);
-			spin_lock(&ns->ns_lock);
-			continue;
-		}
-
-		lock_res_and_lock(lock);
-		/* Check flags again under the lock. */
-		if ((lock->l_flags & LDLM_FL_CANCELING) ||
-		    (ldlm_lock_remove_from_lru(lock) == 0)) {
-			/* Another thread is removing lock from LRU, or
-			 * somebody is already doing CANCEL, or there
-			 * is a blocking request which will send cancel
-			 * by itself, or the lock is no longer unused. */
-			unlock_res_and_lock(lock);
-			lu_ref_del(&lock->l_reference,
-				   __func__, current);
-			LDLM_LOCK_RELEASE(lock);
-			spin_lock(&ns->ns_lock);
-			continue;
-		}
-		LASSERT(!lock->l_readers && !lock->l_writers);
-
-		/* If we have chosen to cancel this lock voluntarily, we
-		 * better send cancel notification to server, so that it
-		 * frees appropriate state. This might lead to a race
-		 * where while we are doing cancel here, server is also
-		 * silently cancelling this lock. */
-		lock->l_flags &= ~LDLM_FL_CANCEL_ON_BLOCK;
-
-		/* Setting the CBPENDING flag is a little misleading,
-		 * but prevents an important race; namely, once
-		 * CBPENDING is set, the lock can accumulate no more
-		 * readers/writers. Since readers and writers are
-		 * already zero here, ldlm_lock_decref() won't see
-		 * this flag and call l_blocking_ast */
-		lock->l_flags |= LDLM_FL_CBPENDING | LDLM_FL_CANCELING;
-
-		/* We can't re-add to l_lru as it confuses the
-		 * refcounting in ldlm_lock_remove_from_lru() if an AST
-		 * arrives after we drop lr_lock below. We use l_bl_ast
-		 * and can't use l_pending_chain as it is used both on
-		 * server and client nevertheless bug 5666 says it is
-		 * used only on server */
-		LASSERT(list_empty(&lock->l_bl_ast));
-		list_add(&lock->l_bl_ast, cancels);
-		unlock_res_and_lock(lock);
-		lu_ref_del(&lock->l_reference, __func__, current);
-		spin_lock(&ns->ns_lock);
-		added++;
-		unused--;
-	}
-	spin_unlock(&ns->ns_lock);
-	return added;
-}
-
-int ldlm_cancel_lru_local(struct ldlm_namespace *ns, struct list_head *cancels,
-			  int count, int max, ldlm_cancel_flags_t cancel_flags,
-			  int flags)
-{
-	int added;
-
-	added = ldlm_prepare_lru_list(ns, cancels, count, max, flags);
-	if (added <= 0)
-		return added;
-	return ldlm_cli_cancel_list_local(cancels, added, cancel_flags);
-}
-
-/**
- * Cancel at least \a nr locks from given namespace LRU.
- *
- * When called with LCF_ASYNC the blocking callback will be handled
- * in a thread and this function will return after the thread has been
- * asked to call the callback.  When called with LCF_ASYNC the blocking
- * callback will be performed in this function.
- */
-int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr,
-		    ldlm_cancel_flags_t cancel_flags,
-		    int flags)
-{
-	LIST_HEAD(cancels);
-	int count, rc;
-
-	/* Just prepare the list of locks, do not actually cancel them yet.
-	 * Locks are cancelled later in a separate thread. */
-	count = ldlm_prepare_lru_list(ns, &cancels, nr, 0, flags);
-	rc = ldlm_bl_to_thread_list(ns, NULL, &cancels, count, cancel_flags);
-	if (rc == 0)
-		return count;
-
-	return 0;
-}
-
-/**
- * Find and cancel locally unused locks found on resource, matched to the
- * given policy, mode. GET the found locks and add them into the \a cancels
- * list.
- */
-int ldlm_cancel_resource_local(struct ldlm_resource *res,
-			       struct list_head *cancels,
-			       ldlm_policy_data_t *policy,
-			       ldlm_mode_t mode, __u64 lock_flags,
-			       ldlm_cancel_flags_t cancel_flags, void *opaque)
-{
-	struct ldlm_lock *lock;
-	int count = 0;
-
-	lock_res(res);
-	list_for_each_entry(lock, &res->lr_granted, l_res_link) {
-		if (opaque != NULL && lock->l_ast_data != opaque) {
-			LDLM_ERROR(lock, "data %p doesn't match opaque %p",
-				   lock->l_ast_data, opaque);
-			continue;
-		}
-
-		if (lock->l_readers || lock->l_writers)
-			continue;
-
-		/* If somebody is already doing CANCEL, or blocking AST came,
-		 * skip this lock. */
-		if (lock->l_flags & LDLM_FL_BL_AST ||
-		    lock->l_flags & LDLM_FL_CANCELING)
-			continue;
-
-		if (lockmode_compat(lock->l_granted_mode, mode))
-			continue;
-
-		/* If policy is given and this is IBITS lock, add to list only
-		 * those locks that match by policy. */
-		if (policy && (lock->l_resource->lr_type == LDLM_IBITS) &&
-		    !(lock->l_policy_data.l_inodebits.bits &
-		      policy->l_inodebits.bits))
-			continue;
-
-		/* See CBPENDING comment in ldlm_cancel_lru */
-		lock->l_flags |= LDLM_FL_CBPENDING | LDLM_FL_CANCELING |
-				 lock_flags;
-
-		LASSERT(list_empty(&lock->l_bl_ast));
-		list_add(&lock->l_bl_ast, cancels);
-		LDLM_LOCK_GET(lock);
-		count++;
-	}
-	unlock_res(res);
-
-	return ldlm_cli_cancel_list_local(cancels, count, cancel_flags);
-}
-EXPORT_SYMBOL(ldlm_cancel_resource_local);
-
-/**
- * Cancel client-side locks from a list and send/prepare cancel RPCs to the
- * server.
- * If \a req is NULL, send CANCEL request to server with handles of locks
- * in the \a cancels. If EARLY_CANCEL is not supported, send CANCEL requests
- * separately per lock.
- * If \a req is not NULL, put handles of locks in \a cancels into the request
- * buffer at the offset \a off.
- * Destroy \a cancels at the end.
- */
-int ldlm_cli_cancel_list(struct list_head *cancels, int count,
-			 struct ptlrpc_request *req, ldlm_cancel_flags_t flags)
-{
-	struct ldlm_lock *lock;
-	int res = 0;
-
-	if (list_empty(cancels) || count == 0)
-		return 0;
-
-	/* XXX: requests (both batched and not) could be sent in parallel.
-	 * Usually it is enough to have just 1 RPC, but it is possible that
-	 * there are too many locks to be cancelled in LRU or on a resource.
-	 * It would also speed up the case when the server does not support
-	 * the feature. */
-	while (count > 0) {
-		LASSERT(!list_empty(cancels));
-		lock = list_entry(cancels->next, struct ldlm_lock,
-				      l_bl_ast);
-		LASSERT(lock->l_conn_export);
-
-		if (exp_connect_cancelset(lock->l_conn_export)) {
-			res = count;
-			if (req)
-				ldlm_cancel_pack(req, cancels, count);
-			else
-				res = ldlm_cli_cancel_req(lock->l_conn_export,
-							  cancels, count,
-							  flags);
-		} else {
-			res = ldlm_cli_cancel_req(lock->l_conn_export,
-						  cancels, 1, flags);
-		}
-
-		if (res < 0) {
-			CDEBUG_LIMIT(res == -ESHUTDOWN ? D_DLMTRACE : D_ERROR,
-				     "ldlm_cli_cancel_list: %d\n", res);
-			res = count;
-		}
-
-		count -= res;
-		ldlm_lock_list_put(cancels, l_bl_ast, res);
-	}
-	LASSERT(count == 0);
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_cli_cancel_list);
-
-/**
- * Cancel all locks on a resource that have 0 readers/writers.
- *
- * If flags & LDLM_FL_LOCAL_ONLY, throw the locks away without trying
- * to notify the server. */
-int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
-				    const struct ldlm_res_id *res_id,
-				    ldlm_policy_data_t *policy,
-				    ldlm_mode_t mode,
-				    ldlm_cancel_flags_t flags,
-				    void *opaque)
-{
-	struct ldlm_resource *res;
-	LIST_HEAD(cancels);
-	int count;
-	int rc;
-
-	res = ldlm_resource_get(ns, NULL, res_id, 0, 0);
-	if (res == NULL) {
-		/* This is not a problem. */
-		CDEBUG(D_INFO, "No resource %llu\n", res_id->name[0]);
-		return 0;
-	}
-
-	LDLM_RESOURCE_ADDREF(res);
-	count = ldlm_cancel_resource_local(res, &cancels, policy, mode,
-					   0, flags | LCF_BL_AST, opaque);
-	rc = ldlm_cli_cancel_list(&cancels, count, NULL, flags);
-	if (rc != ELDLM_OK)
-		CERROR("canceling unused lock "DLDLMRES": rc = %d\n",
-		       PLDLMRES(res), rc);
-
-	LDLM_RESOURCE_DELREF(res);
-	ldlm_resource_putref(res);
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_cli_cancel_unused_resource);
-
-struct ldlm_cli_cancel_arg {
-	int     lc_flags;
-	void   *lc_opaque;
-};
-
-static int ldlm_cli_hash_cancel_unused(struct cfs_hash *hs,
-				       struct cfs_hash_bd *bd,
-				       struct hlist_node *hnode, void *arg)
-{
-	struct ldlm_resource	   *res = cfs_hash_object(hs, hnode);
-	struct ldlm_cli_cancel_arg     *lc = arg;
-
-	ldlm_cli_cancel_unused_resource(ldlm_res_to_ns(res), &res->lr_name,
-					NULL, LCK_MINMODE,
-					lc->lc_flags, lc->lc_opaque);
-	/* must return 0 for hash iteration */
-	return 0;
-}
-
-/**
- * Cancel all locks on a namespace (or a specific resource, if given)
- * that have 0 readers/writers.
- *
- * If flags & LCF_LOCAL, throw the locks away without trying
- * to notify the server. */
-int ldlm_cli_cancel_unused(struct ldlm_namespace *ns,
-			   const struct ldlm_res_id *res_id,
-			   ldlm_cancel_flags_t flags, void *opaque)
-{
-	struct ldlm_cli_cancel_arg arg = {
-		.lc_flags       = flags,
-		.lc_opaque      = opaque,
-	};
-
-	if (ns == NULL)
-		return ELDLM_OK;
-
-	if (res_id != NULL) {
-		return ldlm_cli_cancel_unused_resource(ns, res_id, NULL,
-						       LCK_MINMODE, flags,
-						       opaque);
-	} else {
-		cfs_hash_for_each_nolock(ns->ns_rs_hash,
-					 ldlm_cli_hash_cancel_unused, &arg);
-		return ELDLM_OK;
-	}
-}
-EXPORT_SYMBOL(ldlm_cli_cancel_unused);
-
-/* Lock iterators. */
-
-int ldlm_resource_foreach(struct ldlm_resource *res, ldlm_iterator_t iter,
-			  void *closure)
-{
-	struct list_head *tmp, *next;
-	struct ldlm_lock *lock;
-	int rc = LDLM_ITER_CONTINUE;
-
-	if (!res)
-		return LDLM_ITER_CONTINUE;
-
-	lock_res(res);
-	list_for_each_safe(tmp, next, &res->lr_granted) {
-		lock = list_entry(tmp, struct ldlm_lock, l_res_link);
-
-		if (iter(lock, closure) == LDLM_ITER_STOP) {
-			rc = LDLM_ITER_STOP;
-			goto out;
-		}
-	}
-
-	list_for_each_safe(tmp, next, &res->lr_converting) {
-		lock = list_entry(tmp, struct ldlm_lock, l_res_link);
-
-		if (iter(lock, closure) == LDLM_ITER_STOP) {
-			rc = LDLM_ITER_STOP;
-			goto out;
-		}
-	}
-
-	list_for_each_safe(tmp, next, &res->lr_waiting) {
-		lock = list_entry(tmp, struct ldlm_lock, l_res_link);
-
-		if (iter(lock, closure) == LDLM_ITER_STOP) {
-			rc = LDLM_ITER_STOP;
-			goto out;
-		}
-	}
- out:
-	unlock_res(res);
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_resource_foreach);
-
-struct iter_helper_data {
-	ldlm_iterator_t iter;
-	void *closure;
-};
-
-static int ldlm_iter_helper(struct ldlm_lock *lock, void *closure)
-{
-	struct iter_helper_data *helper = closure;
-
-	return helper->iter(lock, helper->closure);
-}
-
-static int ldlm_res_iter_helper(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-				struct hlist_node *hnode, void *arg)
-
-{
-	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
-
-	return ldlm_resource_foreach(res, ldlm_iter_helper, arg) ==
-	       LDLM_ITER_STOP;
-}
-
-void ldlm_namespace_foreach(struct ldlm_namespace *ns,
-			    ldlm_iterator_t iter, void *closure)
-
-{
-	struct iter_helper_data helper = {
-		.iter		= iter,
-		.closure	= closure,
-	};
-
-	cfs_hash_for_each_nolock(ns->ns_rs_hash,
-				 ldlm_res_iter_helper, &helper);
-
-}
-EXPORT_SYMBOL(ldlm_namespace_foreach);
-
-/* non-blocking function to manipulate a lock whose cb_data is being put away.
- * return  0:  find no resource
- *       > 0:  must be LDLM_ITER_STOP/LDLM_ITER_CONTINUE.
- *       < 0:  errors
- */
-int ldlm_resource_iterate(struct ldlm_namespace *ns,
-			  const struct ldlm_res_id *res_id,
-			  ldlm_iterator_t iter, void *data)
-{
-	struct ldlm_resource *res;
-	int rc;
-
-	if (ns == NULL) {
-		CERROR("must pass in namespace\n");
-		LBUG();
-	}
-
-	res = ldlm_resource_get(ns, NULL, res_id, 0, 0);
-	if (res == NULL)
-		return 0;
-
-	LDLM_RESOURCE_ADDREF(res);
-	rc = ldlm_resource_foreach(res, iter, data);
-	LDLM_RESOURCE_DELREF(res);
-	ldlm_resource_putref(res);
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_resource_iterate);
-
-/* Lock replay */
-
-static int ldlm_chain_lock_for_replay(struct ldlm_lock *lock, void *closure)
-{
-	struct list_head *list = closure;
-
-	/* we use l_pending_chain here, because it's unused on clients. */
-	LASSERTF(list_empty(&lock->l_pending_chain),
-		 "lock %p next %p prev %p\n",
-		 lock, &lock->l_pending_chain.next,
-		 &lock->l_pending_chain.prev);
-	/* bug 9573: don't replay locks left after eviction, or
-	 * bug 17614: locks being actively cancelled. Get a reference
-	 * on a lock so that it does not disappear under us (e.g. due to cancel)
-	 */
-	if (!(lock->l_flags & (LDLM_FL_FAILED|LDLM_FL_CANCELING))) {
-		list_add(&lock->l_pending_chain, list);
-		LDLM_LOCK_GET(lock);
-	}
-
-	return LDLM_ITER_CONTINUE;
-}
-
-static int replay_lock_interpret(const struct lu_env *env,
-				 struct ptlrpc_request *req,
-				 struct ldlm_async_args *aa, int rc)
-{
-	struct ldlm_lock     *lock;
-	struct ldlm_reply    *reply;
-	struct obd_export    *exp;
-
-	atomic_dec(&req->rq_import->imp_replay_inflight);
-	if (rc != ELDLM_OK)
-		goto out;
-
-
-	reply = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	if (reply == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	lock = ldlm_handle2lock(&aa->lock_handle);
-	if (!lock) {
-		CERROR("received replay ack for unknown local cookie %#llx remote cookie %#llx from server %s id %s\n",
-		       aa->lock_handle.cookie, reply->lock_handle.cookie,
-		       req->rq_export->exp_client_uuid.uuid,
-		       libcfs_id2str(req->rq_peer));
-		rc = -ESTALE;
-		goto out;
-	}
-
-	/* Key change rehash lock in per-export hash with new key */
-	exp = req->rq_export;
-	if (exp && exp->exp_lock_hash) {
-		/* In the function below, .hs_keycmp resolves to
-		 * ldlm_export_lock_keycmp() */
-		/* coverity[overrun-buffer-val] */
-		cfs_hash_rehash_key(exp->exp_lock_hash,
-				    &lock->l_remote_handle,
-				    &reply->lock_handle,
-				    &lock->l_exp_hash);
-	} else {
-		lock->l_remote_handle = reply->lock_handle;
-	}
-
-	LDLM_DEBUG(lock, "replayed lock:");
-	ptlrpc_import_recovery_state_machine(req->rq_import);
-	LDLM_LOCK_PUT(lock);
-out:
-	if (rc != ELDLM_OK)
-		ptlrpc_connect_import(req->rq_import);
-
-	return rc;
-}
-
-static int replay_one_lock(struct obd_import *imp, struct ldlm_lock *lock)
-{
-	struct ptlrpc_request *req;
-	struct ldlm_async_args *aa;
-	struct ldlm_request   *body;
-	int flags;
-
-	/* Bug 11974: Do not replay a lock which is actively being canceled */
-	if (lock->l_flags & LDLM_FL_CANCELING) {
-		LDLM_DEBUG(lock, "Not replaying canceled lock:");
-		return 0;
-	}
-
-	/* If this is reply-less callback lock, we cannot replay it, since
-	 * server might have long dropped it, but notification of that event was
-	 * lost by network. (and server granted conflicting lock already) */
-	if (lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK) {
-		LDLM_DEBUG(lock, "Not replaying reply-less lock:");
-		ldlm_lock_cancel(lock);
-		return 0;
-	}
-
-	/*
-	 * If granted mode matches the requested mode, this lock is granted.
-	 *
-	 * If they differ, but we have a granted mode, then we were granted
-	 * one mode and now want another: ergo, converting.
-	 *
-	 * If we haven't been granted anything and are on a resource list,
-	 * then we're blocked/waiting.
-	 *
-	 * If we haven't been granted anything and we're NOT on a resource list,
-	 * then we haven't got a reply yet and don't have a known disposition.
-	 * This happens whenever a lock enqueue is the request that triggers
-	 * recovery.
-	 */
-	if (lock->l_granted_mode == lock->l_req_mode)
-		flags = LDLM_FL_REPLAY | LDLM_FL_BLOCK_GRANTED;
-	else if (lock->l_granted_mode)
-		flags = LDLM_FL_REPLAY | LDLM_FL_BLOCK_CONV;
-	else if (!list_empty(&lock->l_res_link))
-		flags = LDLM_FL_REPLAY | LDLM_FL_BLOCK_WAIT;
-	else
-		flags = LDLM_FL_REPLAY;
-
-	req = ptlrpc_request_alloc_pack(imp, &RQF_LDLM_ENQUEUE,
-					LUSTRE_DLM_VERSION, LDLM_ENQUEUE);
-	if (req == NULL)
-		return -ENOMEM;
-
-	/* We're part of recovery, so don't wait for it. */
-	req->rq_send_state = LUSTRE_IMP_REPLAY_LOCKS;
-
-	body = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
-	ldlm_lock2desc(lock, &body->lock_desc);
-	body->lock_flags = ldlm_flags_to_wire(flags);
-
-	ldlm_lock2handle(lock, &body->lock_handle[0]);
-	if (lock->l_lvb_len > 0)
-		req_capsule_extend(&req->rq_pill, &RQF_LDLM_ENQUEUE_LVB);
-	req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
-			     lock->l_lvb_len);
-	ptlrpc_request_set_replen(req);
-	/* notify the server we've replayed all requests.
-	 * also, we mark the request to be put on a dedicated
-	 * queue to be processed after all request replayes.
-	 * bug 6063 */
-	lustre_msg_set_flags(req->rq_reqmsg, MSG_REQ_REPLAY_DONE);
-
-	LDLM_DEBUG(lock, "replaying lock:");
-
-	atomic_inc(&req->rq_import->imp_replay_inflight);
-	CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args));
-	aa = ptlrpc_req_async_args(req);
-	aa->lock_handle = body->lock_handle[0];
-	req->rq_interpret_reply = (ptlrpc_interpterer_t)replay_lock_interpret;
-	ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
-
-	return 0;
-}
-
-/**
- * Cancel as many unused locks as possible before replay. since we are
- * in recovery, we can't wait for any outstanding RPCs to send any RPC
- * to the server.
- *
- * Called only in recovery before replaying locks. there is no need to
- * replay locks that are unused. since the clients may hold thousands of
- * cached unused locks, dropping the unused locks can greatly reduce the
- * load on the servers at recovery time.
- */
-static void ldlm_cancel_unused_locks_for_replay(struct ldlm_namespace *ns)
-{
-	int canceled;
-	LIST_HEAD(cancels);
-
-	CDEBUG(D_DLMTRACE, "Dropping as many unused locks as possible before replay for namespace %s (%d)\n",
-	       ldlm_ns_name(ns), ns->ns_nr_unused);
-
-	/* We don't need to care whether or not LRU resize is enabled
-	 * because the LDLM_CANCEL_NO_WAIT policy doesn't use the
-	 * count parameter */
-	canceled = ldlm_cancel_lru_local(ns, &cancels, ns->ns_nr_unused, 0,
-					 LCF_LOCAL, LDLM_CANCEL_NO_WAIT);
-
-	CDEBUG(D_DLMTRACE, "Canceled %d unused locks from namespace %s\n",
-			   canceled, ldlm_ns_name(ns));
-}
-
-int ldlm_replay_locks(struct obd_import *imp)
-{
-	struct ldlm_namespace *ns = imp->imp_obd->obd_namespace;
-	LIST_HEAD(list);
-	struct ldlm_lock *lock, *next;
-	int rc = 0;
-
-	LASSERT(atomic_read(&imp->imp_replay_inflight) == 0);
-
-	/* don't replay locks if import failed recovery */
-	if (imp->imp_vbr_failed)
-		return 0;
-
-	/* ensure this doesn't fall to 0 before all have been queued */
-	atomic_inc(&imp->imp_replay_inflight);
-
-	if (ldlm_cancel_unused_locks_before_replay)
-		ldlm_cancel_unused_locks_for_replay(ns);
-
-	ldlm_namespace_foreach(ns, ldlm_chain_lock_for_replay, &list);
-
-	list_for_each_entry_safe(lock, next, &list, l_pending_chain) {
-		list_del_init(&lock->l_pending_chain);
-		if (rc) {
-			LDLM_LOCK_RELEASE(lock);
-			continue; /* or try to do the rest? */
-		}
-		rc = replay_one_lock(imp, lock);
-		LDLM_LOCK_RELEASE(lock);
-	}
-
-	atomic_dec(&imp->imp_replay_inflight);
-
-	return rc;
-}
-EXPORT_SYMBOL(ldlm_replay_locks);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
deleted file mode 100644
index 4bb3173bcd5f..000000000000
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ /dev/null
@@ -1,1464 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2010, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/ldlm/ldlm_resource.c
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Peter Braam <braam@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LDLM
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_fid.h"
-#include "../include/obd_class.h"
-#include "ldlm_internal.h"
-
-struct kmem_cache *ldlm_resource_slab, *ldlm_lock_slab;
-
-int ldlm_srv_namespace_nr = 0;
-int ldlm_cli_namespace_nr = 0;
-
-struct mutex ldlm_srv_namespace_lock;
-LIST_HEAD(ldlm_srv_namespace_list);
-
-struct mutex ldlm_cli_namespace_lock;
-/* Client Namespaces that have active resources in them.
- * Once all resources go away, ldlm_poold moves such namespaces to the
- * inactive list */
-LIST_HEAD(ldlm_cli_active_namespace_list);
-/* Client namespaces that don't have any locks in them */
-LIST_HEAD(ldlm_cli_inactive_namespace_list);
-
-static struct dentry *ldlm_debugfs_dir;
-static struct dentry *ldlm_ns_debugfs_dir;
-struct dentry *ldlm_svc_debugfs_dir;
-
-/* during debug dump certain amount of granted locks for one resource to avoid
- * DDOS. */
-unsigned int ldlm_dump_granted_max = 256;
-
-static ssize_t
-lprocfs_wr_dump_ns(struct file *file, const char __user *buffer,
-		   size_t count, loff_t *off)
-{
-	ldlm_dump_all_namespaces(LDLM_NAMESPACE_SERVER, D_DLMTRACE);
-	ldlm_dump_all_namespaces(LDLM_NAMESPACE_CLIENT, D_DLMTRACE);
-	return count;
-}
-LPROC_SEQ_FOPS_WR_ONLY(ldlm, dump_ns);
-
-LPROC_SEQ_FOPS_RW_TYPE(ldlm_rw, uint);
-
-static struct lprocfs_vars ldlm_debugfs_list[] = {
-	{ "dump_namespaces", &ldlm_dump_ns_fops, NULL, 0222 },
-	{ "dump_granted_max", &ldlm_rw_uint_fops, &ldlm_dump_granted_max },
-	{ NULL }
-};
-
-int ldlm_debugfs_setup(void)
-{
-	int rc;
-
-	ldlm_debugfs_dir = ldebugfs_register(OBD_LDLM_DEVICENAME,
-					     debugfs_lustre_root,
-					     NULL, NULL);
-	if (IS_ERR_OR_NULL(ldlm_debugfs_dir)) {
-		CERROR("LProcFS failed in ldlm-init\n");
-		rc = ldlm_debugfs_dir ? PTR_ERR(ldlm_debugfs_dir) : -ENOMEM;
-		goto err;
-	}
-
-	ldlm_ns_debugfs_dir = ldebugfs_register("namespaces",
-						ldlm_debugfs_dir,
-						NULL, NULL);
-	if (IS_ERR_OR_NULL(ldlm_ns_debugfs_dir)) {
-		CERROR("LProcFS failed in ldlm-init\n");
-		rc = ldlm_ns_debugfs_dir ? PTR_ERR(ldlm_ns_debugfs_dir)
-					 : -ENOMEM;
-		goto err_type;
-	}
-
-	ldlm_svc_debugfs_dir = ldebugfs_register("services",
-						 ldlm_debugfs_dir,
-						 NULL, NULL);
-	if (IS_ERR_OR_NULL(ldlm_svc_debugfs_dir)) {
-		CERROR("LProcFS failed in ldlm-init\n");
-		rc = ldlm_svc_debugfs_dir ? PTR_ERR(ldlm_svc_debugfs_dir)
-					  : -ENOMEM;
-		goto err_ns;
-	}
-
-	rc = ldebugfs_add_vars(ldlm_debugfs_dir, ldlm_debugfs_list, NULL);
-
-	return 0;
-
-err_ns:
-	ldebugfs_remove(&ldlm_ns_debugfs_dir);
-err_type:
-	ldebugfs_remove(&ldlm_debugfs_dir);
-err:
-	ldlm_svc_debugfs_dir = NULL;
-	ldlm_ns_debugfs_dir = NULL;
-	ldlm_debugfs_dir = NULL;
-	return rc;
-}
-
-void ldlm_debugfs_cleanup(void)
-{
-	if (!IS_ERR_OR_NULL(ldlm_svc_debugfs_dir))
-		ldebugfs_remove(&ldlm_svc_debugfs_dir);
-
-	if (!IS_ERR_OR_NULL(ldlm_ns_debugfs_dir))
-		ldebugfs_remove(&ldlm_ns_debugfs_dir);
-
-	if (!IS_ERR_OR_NULL(ldlm_debugfs_dir))
-		ldebugfs_remove(&ldlm_debugfs_dir);
-
-	ldlm_svc_debugfs_dir = NULL;
-	ldlm_ns_debugfs_dir = NULL;
-	ldlm_debugfs_dir = NULL;
-}
-
-static ssize_t resource_count_show(struct kobject *kobj, struct attribute *attr,
-				   char *buf)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-	__u64		  res = 0;
-	struct cfs_hash_bd	  bd;
-	int		    i;
-
-	/* result is not strictly consistent */
-	cfs_hash_for_each_bucket(ns->ns_rs_hash, &bd, i)
-		res += cfs_hash_bd_count_get(&bd);
-	return sprintf(buf, "%lld\n", res);
-}
-LUSTRE_RO_ATTR(resource_count);
-
-static ssize_t lock_count_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-	__u64		  locks;
-
-	locks = lprocfs_stats_collector(ns->ns_stats, LDLM_NSS_LOCKS,
-					LPROCFS_FIELDS_FLAGS_SUM);
-	return sprintf(buf, "%lld\n", locks);
-}
-LUSTRE_RO_ATTR(lock_count);
-
-static ssize_t lock_unused_count_show(struct kobject *kobj,
-				      struct attribute *attr,
-				      char *buf)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-
-	return sprintf(buf, "%d\n", ns->ns_nr_unused);
-}
-LUSTRE_RO_ATTR(lock_unused_count);
-
-static ssize_t lru_size_show(struct kobject *kobj, struct attribute *attr,
-			     char *buf)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-	__u32 *nr = &ns->ns_max_unused;
-
-	if (ns_connect_lru_resize(ns))
-		nr = &ns->ns_nr_unused;
-	return sprintf(buf, "%u", *nr);
-}
-
-static ssize_t lru_size_store(struct kobject *kobj, struct attribute *attr,
-			      const char *buffer, size_t count)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-	unsigned long tmp;
-	int lru_resize;
-	int err;
-
-	if (strncmp(buffer, "clear", 5) == 0) {
-		CDEBUG(D_DLMTRACE,
-		       "dropping all unused locks from namespace %s\n",
-		       ldlm_ns_name(ns));
-		if (ns_connect_lru_resize(ns)) {
-			int canceled, unused  = ns->ns_nr_unused;
-
-			/* Try to cancel all @ns_nr_unused locks. */
-			canceled = ldlm_cancel_lru(ns, unused, 0,
-						   LDLM_CANCEL_PASSED);
-			if (canceled < unused) {
-				CDEBUG(D_DLMTRACE,
-				       "not all requested locks are canceled, requested: %d, canceled: %d\n",
-				       unused,
-				       canceled);
-				return -EINVAL;
-			}
-		} else {
-			tmp = ns->ns_max_unused;
-			ns->ns_max_unused = 0;
-			ldlm_cancel_lru(ns, 0, 0, LDLM_CANCEL_PASSED);
-			ns->ns_max_unused = tmp;
-		}
-		return count;
-	}
-
-	err = kstrtoul(buffer, 10, &tmp);
-	if (err != 0) {
-		CERROR("lru_size: invalid value written\n");
-		return -EINVAL;
-	}
-	lru_resize = (tmp == 0);
-
-	if (ns_connect_lru_resize(ns)) {
-		if (!lru_resize)
-			ns->ns_max_unused = (unsigned int)tmp;
-
-		if (tmp > ns->ns_nr_unused)
-			tmp = ns->ns_nr_unused;
-		tmp = ns->ns_nr_unused - tmp;
-
-		CDEBUG(D_DLMTRACE,
-		       "changing namespace %s unused locks from %u to %u\n",
-		       ldlm_ns_name(ns), ns->ns_nr_unused,
-		       (unsigned int)tmp);
-		ldlm_cancel_lru(ns, tmp, LCF_ASYNC, LDLM_CANCEL_PASSED);
-
-		if (!lru_resize) {
-			CDEBUG(D_DLMTRACE,
-			       "disable lru_resize for namespace %s\n",
-			       ldlm_ns_name(ns));
-			ns->ns_connect_flags &= ~OBD_CONNECT_LRU_RESIZE;
-		}
-	} else {
-		CDEBUG(D_DLMTRACE,
-		       "changing namespace %s max_unused from %u to %u\n",
-		       ldlm_ns_name(ns), ns->ns_max_unused,
-		       (unsigned int)tmp);
-		ns->ns_max_unused = (unsigned int)tmp;
-		ldlm_cancel_lru(ns, 0, LCF_ASYNC, LDLM_CANCEL_PASSED);
-
-		/* Make sure that LRU resize was originally supported before
-		 * turning it on here. */
-		if (lru_resize &&
-		    (ns->ns_orig_connect_flags & OBD_CONNECT_LRU_RESIZE)) {
-			CDEBUG(D_DLMTRACE,
-			       "enable lru_resize for namespace %s\n",
-			       ldlm_ns_name(ns));
-			ns->ns_connect_flags |= OBD_CONNECT_LRU_RESIZE;
-		}
-	}
-
-	return count;
-}
-LUSTRE_RW_ATTR(lru_size);
-
-static ssize_t lru_max_age_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-
-	return sprintf(buf, "%u", ns->ns_max_age);
-}
-
-static ssize_t lru_max_age_store(struct kobject *kobj, struct attribute *attr,
-				 const char *buffer, size_t count)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-	unsigned long tmp;
-	int err;
-
-	err = kstrtoul(buffer, 10, &tmp);
-	if (err != 0)
-		return -EINVAL;
-
-	ns->ns_max_age = tmp;
-
-	return count;
-}
-LUSTRE_RW_ATTR(lru_max_age);
-
-static ssize_t early_lock_cancel_show(struct kobject *kobj,
-				      struct attribute *attr,
-				      char *buf)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-
-	return sprintf(buf, "%d\n", ns_connect_cancelset(ns));
-}
-
-static ssize_t early_lock_cancel_store(struct kobject *kobj,
-				       struct attribute *attr,
-				       const char *buffer,
-				       size_t count)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-	unsigned long supp = -1;
-	int rc;
-
-	rc = kstrtoul(buffer, 10, &supp);
-	if (rc < 0)
-		return rc;
-
-	if (supp == 0)
-		ns->ns_connect_flags &= ~OBD_CONNECT_CANCELSET;
-	else if (ns->ns_orig_connect_flags & OBD_CONNECT_CANCELSET)
-		ns->ns_connect_flags |= OBD_CONNECT_CANCELSET;
-	return count;
-}
-LUSTRE_RW_ATTR(early_lock_cancel);
-
-/* These are for namespaces in /sys/fs/lustre/ldlm/namespaces/ */
-static struct attribute *ldlm_ns_attrs[] = {
-	&lustre_attr_resource_count.attr,
-	&lustre_attr_lock_count.attr,
-	&lustre_attr_lock_unused_count.attr,
-	&lustre_attr_lru_size.attr,
-	&lustre_attr_lru_max_age.attr,
-	&lustre_attr_early_lock_cancel.attr,
-	NULL,
-};
-
-static void ldlm_ns_release(struct kobject *kobj)
-{
-	struct ldlm_namespace *ns = container_of(kobj, struct ldlm_namespace,
-						 ns_kobj);
-	complete(&ns->ns_kobj_unregister);
-}
-
-static struct kobj_type ldlm_ns_ktype = {
-	.default_attrs  = ldlm_ns_attrs,
-	.sysfs_ops      = &lustre_sysfs_ops,
-	.release        = ldlm_ns_release,
-};
-
-static void ldlm_namespace_debugfs_unregister(struct ldlm_namespace *ns)
-{
-	if (IS_ERR_OR_NULL(ns->ns_debugfs_entry))
-		CERROR("dlm namespace %s has no procfs dir?\n",
-		       ldlm_ns_name(ns));
-	else
-		ldebugfs_remove(&ns->ns_debugfs_entry);
-
-	if (ns->ns_stats != NULL)
-		lprocfs_free_stats(&ns->ns_stats);
-}
-
-void ldlm_namespace_sysfs_unregister(struct ldlm_namespace *ns)
-{
-	kobject_put(&ns->ns_kobj);
-	wait_for_completion(&ns->ns_kobj_unregister);
-}
-
-int ldlm_namespace_sysfs_register(struct ldlm_namespace *ns)
-{
-	int err;
-
-	ns->ns_kobj.kset = ldlm_ns_kset;
-	init_completion(&ns->ns_kobj_unregister);
-	err = kobject_init_and_add(&ns->ns_kobj, &ldlm_ns_ktype, NULL,
-				   "%s", ldlm_ns_name(ns));
-
-	ns->ns_stats = lprocfs_alloc_stats(LDLM_NSS_LAST, 0);
-	if (ns->ns_stats == NULL) {
-		kobject_put(&ns->ns_kobj);
-		return -ENOMEM;
-	}
-
-	lprocfs_counter_init(ns->ns_stats, LDLM_NSS_LOCKS,
-			     LPROCFS_CNTR_AVGMINMAX, "locks", "locks");
-
-	return err;
-}
-
-static int ldlm_namespace_debugfs_register(struct ldlm_namespace *ns)
-{
-	struct dentry *ns_entry;
-
-	if (!IS_ERR_OR_NULL(ns->ns_debugfs_entry)) {
-		ns_entry = ns->ns_debugfs_entry;
-	} else {
-		ns_entry = debugfs_create_dir(ldlm_ns_name(ns),
-					      ldlm_ns_debugfs_dir);
-		if (ns_entry == NULL)
-			return -ENOMEM;
-		ns->ns_debugfs_entry = ns_entry;
-	}
-
-	return 0;
-}
-#undef MAX_STRING_SIZE
-
-static unsigned ldlm_res_hop_hash(struct cfs_hash *hs,
-				  const void *key, unsigned mask)
-{
-	const struct ldlm_res_id     *id  = key;
-	unsigned		val = 0;
-	unsigned		i;
-
-	for (i = 0; i < RES_NAME_SIZE; i++)
-		val += id->name[i];
-	return val & mask;
-}
-
-static unsigned ldlm_res_hop_fid_hash(struct cfs_hash *hs,
-				      const void *key, unsigned mask)
-{
-	const struct ldlm_res_id *id = key;
-	struct lu_fid       fid;
-	__u32	       hash;
-	__u32	       val;
-
-	fid.f_seq = id->name[LUSTRE_RES_ID_SEQ_OFF];
-	fid.f_oid = (__u32)id->name[LUSTRE_RES_ID_VER_OID_OFF];
-	fid.f_ver = (__u32)(id->name[LUSTRE_RES_ID_VER_OID_OFF] >> 32);
-
-	hash = fid_flatten32(&fid);
-	hash += (hash >> 4) + (hash << 12); /* mixing oid and seq */
-	if (id->name[LUSTRE_RES_ID_HSH_OFF] != 0) {
-		val = id->name[LUSTRE_RES_ID_HSH_OFF];
-		hash += (val >> 5) + (val << 11);
-	} else {
-		val = fid_oid(&fid);
-	}
-	hash = hash_long(hash, hs->hs_bkt_bits);
-	/* give me another random factor */
-	hash -= hash_long((unsigned long)hs, val % 11 + 3);
-
-	hash <<= hs->hs_cur_bits - hs->hs_bkt_bits;
-	hash |= ldlm_res_hop_hash(hs, key, CFS_HASH_NBKT(hs) - 1);
-
-	return hash & mask;
-}
-
-static void *ldlm_res_hop_key(struct hlist_node *hnode)
-{
-	struct ldlm_resource   *res;
-
-	res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
-	return &res->lr_name;
-}
-
-static int ldlm_res_hop_keycmp(const void *key, struct hlist_node *hnode)
-{
-	struct ldlm_resource   *res;
-
-	res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
-	return ldlm_res_eq((const struct ldlm_res_id *)key,
-			   (const struct ldlm_res_id *)&res->lr_name);
-}
-
-static void *ldlm_res_hop_object(struct hlist_node *hnode)
-{
-	return hlist_entry(hnode, struct ldlm_resource, lr_hash);
-}
-
-static void ldlm_res_hop_get_locked(struct cfs_hash *hs,
-				    struct hlist_node *hnode)
-{
-	struct ldlm_resource *res;
-
-	res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
-	ldlm_resource_getref(res);
-}
-
-static void ldlm_res_hop_put_locked(struct cfs_hash *hs,
-				    struct hlist_node *hnode)
-{
-	struct ldlm_resource *res;
-
-	res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
-	/* cfs_hash_for_each_nolock is the only chance we call it */
-	ldlm_resource_putref_locked(res);
-}
-
-static void ldlm_res_hop_put(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct ldlm_resource *res;
-
-	res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
-	ldlm_resource_putref(res);
-}
-
-cfs_hash_ops_t ldlm_ns_hash_ops = {
-	.hs_hash	= ldlm_res_hop_hash,
-	.hs_key	 = ldlm_res_hop_key,
-	.hs_keycmp      = ldlm_res_hop_keycmp,
-	.hs_keycpy      = NULL,
-	.hs_object      = ldlm_res_hop_object,
-	.hs_get	 = ldlm_res_hop_get_locked,
-	.hs_put_locked  = ldlm_res_hop_put_locked,
-	.hs_put	 = ldlm_res_hop_put
-};
-
-cfs_hash_ops_t ldlm_ns_fid_hash_ops = {
-	.hs_hash	= ldlm_res_hop_fid_hash,
-	.hs_key	 = ldlm_res_hop_key,
-	.hs_keycmp      = ldlm_res_hop_keycmp,
-	.hs_keycpy      = NULL,
-	.hs_object      = ldlm_res_hop_object,
-	.hs_get	 = ldlm_res_hop_get_locked,
-	.hs_put_locked  = ldlm_res_hop_put_locked,
-	.hs_put	 = ldlm_res_hop_put
-};
-
-struct ldlm_ns_hash_def {
-	ldlm_ns_type_t  nsd_type;
-	/** hash bucket bits */
-	unsigned	nsd_bkt_bits;
-	/** hash bits */
-	unsigned	nsd_all_bits;
-	/** hash operations */
-	cfs_hash_ops_t *nsd_hops;
-};
-
-struct ldlm_ns_hash_def ldlm_ns_hash_defs[] = {
-	{
-		.nsd_type       = LDLM_NS_TYPE_MDC,
-		.nsd_bkt_bits   = 11,
-		.nsd_all_bits   = 16,
-		.nsd_hops       = &ldlm_ns_fid_hash_ops,
-	},
-	{
-		.nsd_type       = LDLM_NS_TYPE_MDT,
-		.nsd_bkt_bits   = 14,
-		.nsd_all_bits   = 21,
-		.nsd_hops       = &ldlm_ns_fid_hash_ops,
-	},
-	{
-		.nsd_type       = LDLM_NS_TYPE_OSC,
-		.nsd_bkt_bits   = 8,
-		.nsd_all_bits   = 12,
-		.nsd_hops       = &ldlm_ns_hash_ops,
-	},
-	{
-		.nsd_type       = LDLM_NS_TYPE_OST,
-		.nsd_bkt_bits   = 11,
-		.nsd_all_bits   = 17,
-		.nsd_hops       = &ldlm_ns_hash_ops,
-	},
-	{
-		.nsd_type       = LDLM_NS_TYPE_MGC,
-		.nsd_bkt_bits   = 4,
-		.nsd_all_bits   = 4,
-		.nsd_hops       = &ldlm_ns_hash_ops,
-	},
-	{
-		.nsd_type       = LDLM_NS_TYPE_MGT,
-		.nsd_bkt_bits   = 4,
-		.nsd_all_bits   = 4,
-		.nsd_hops       = &ldlm_ns_hash_ops,
-	},
-	{
-		.nsd_type       = LDLM_NS_TYPE_UNKNOWN,
-	},
-};
-
-/**
- * Create and initialize new empty namespace.
- */
-struct ldlm_namespace *ldlm_namespace_new(struct obd_device *obd, char *name,
-					  ldlm_side_t client,
-					  ldlm_appetite_t apt,
-					  ldlm_ns_type_t ns_type)
-{
-	struct ldlm_namespace *ns = NULL;
-	struct ldlm_ns_bucket *nsb;
-	struct ldlm_ns_hash_def    *nsd;
-	struct cfs_hash_bd	  bd;
-	int		    idx;
-	int		    rc;
-
-	LASSERT(obd != NULL);
-
-	rc = ldlm_get_ref();
-	if (rc) {
-		CERROR("ldlm_get_ref failed: %d\n", rc);
-		return NULL;
-	}
-
-	for (idx = 0;; idx++) {
-		nsd = &ldlm_ns_hash_defs[idx];
-		if (nsd->nsd_type == LDLM_NS_TYPE_UNKNOWN) {
-			CERROR("Unknown type %d for ns %s\n", ns_type, name);
-			goto out_ref;
-		}
-
-		if (nsd->nsd_type == ns_type)
-			break;
-	}
-
-	ns = kzalloc(sizeof(*ns), GFP_NOFS);
-	if (!ns)
-		goto out_ref;
-
-	ns->ns_rs_hash = cfs_hash_create(name,
-					 nsd->nsd_all_bits, nsd->nsd_all_bits,
-					 nsd->nsd_bkt_bits, sizeof(*nsb),
-					 CFS_HASH_MIN_THETA,
-					 CFS_HASH_MAX_THETA,
-					 nsd->nsd_hops,
-					 CFS_HASH_DEPTH |
-					 CFS_HASH_BIGNAME |
-					 CFS_HASH_SPIN_BKTLOCK |
-					 CFS_HASH_NO_ITEMREF);
-	if (ns->ns_rs_hash == NULL)
-		goto out_ns;
-
-	cfs_hash_for_each_bucket(ns->ns_rs_hash, &bd, idx) {
-		nsb = cfs_hash_bd_extra_get(ns->ns_rs_hash, &bd);
-		at_init(&nsb->nsb_at_estimate, ldlm_enqueue_min, 0);
-		nsb->nsb_namespace = ns;
-	}
-
-	ns->ns_obd      = obd;
-	ns->ns_appetite = apt;
-	ns->ns_client   = client;
-
-	INIT_LIST_HEAD(&ns->ns_list_chain);
-	INIT_LIST_HEAD(&ns->ns_unused_list);
-	spin_lock_init(&ns->ns_lock);
-	atomic_set(&ns->ns_bref, 0);
-	init_waitqueue_head(&ns->ns_waitq);
-
-	ns->ns_max_parallel_ast   = LDLM_DEFAULT_PARALLEL_AST_LIMIT;
-	ns->ns_nr_unused	  = 0;
-	ns->ns_max_unused	 = LDLM_DEFAULT_LRU_SIZE;
-	ns->ns_max_age	    = LDLM_DEFAULT_MAX_ALIVE;
-	ns->ns_orig_connect_flags = 0;
-	ns->ns_connect_flags      = 0;
-	ns->ns_stopping	   = 0;
-
-	rc = ldlm_namespace_sysfs_register(ns);
-	if (rc != 0) {
-		CERROR("Can't initialize ns sysfs, rc %d\n", rc);
-		goto out_hash;
-	}
-
-	rc = ldlm_namespace_debugfs_register(ns);
-	if (rc != 0) {
-		CERROR("Can't initialize ns proc, rc %d\n", rc);
-		goto out_sysfs;
-	}
-
-	idx = ldlm_namespace_nr_read(client);
-	rc = ldlm_pool_init(&ns->ns_pool, ns, idx, client);
-	if (rc) {
-		CERROR("Can't initialize lock pool, rc %d\n", rc);
-		goto out_proc;
-	}
-
-	ldlm_namespace_register(ns, client);
-	return ns;
-out_proc:
-	ldlm_namespace_debugfs_unregister(ns);
-out_sysfs:
-	ldlm_namespace_sysfs_unregister(ns);
-	ldlm_namespace_cleanup(ns, 0);
-out_hash:
-	cfs_hash_putref(ns->ns_rs_hash);
-out_ns:
-	kfree(ns);
-out_ref:
-	ldlm_put_ref();
-	return NULL;
-}
-EXPORT_SYMBOL(ldlm_namespace_new);
-
-extern struct ldlm_lock *ldlm_lock_get(struct ldlm_lock *lock);
-
-/**
- * Cancel and destroy all locks on a resource.
- *
- * If flags contains FL_LOCAL_ONLY, don't try to tell the server, just
- * clean up.  This is currently only used for recovery, and we make
- * certain assumptions as a result--notably, that we shouldn't cancel
- * locks with refs.
- */
-static void cleanup_resource(struct ldlm_resource *res, struct list_head *q,
-			     __u64 flags)
-{
-	struct list_head *tmp;
-	int rc = 0, client = ns_is_client(ldlm_res_to_ns(res));
-	bool local_only = !!(flags & LDLM_FL_LOCAL_ONLY);
-
-	do {
-		struct ldlm_lock *lock = NULL;
-
-		/* First, we look for non-cleaned-yet lock
-		 * all cleaned locks are marked by CLEANED flag. */
-		lock_res(res);
-		list_for_each(tmp, q) {
-			lock = list_entry(tmp, struct ldlm_lock,
-					      l_res_link);
-			if (lock->l_flags & LDLM_FL_CLEANED) {
-				lock = NULL;
-				continue;
-			}
-			LDLM_LOCK_GET(lock);
-			lock->l_flags |= LDLM_FL_CLEANED;
-			break;
-		}
-
-		if (lock == NULL) {
-			unlock_res(res);
-			break;
-		}
-
-		/* Set CBPENDING so nothing in the cancellation path
-		 * can match this lock. */
-		lock->l_flags |= LDLM_FL_CBPENDING;
-		lock->l_flags |= LDLM_FL_FAILED;
-		lock->l_flags |= flags;
-
-		/* ... without sending a CANCEL message for local_only. */
-		if (local_only)
-			lock->l_flags |= LDLM_FL_LOCAL_ONLY;
-
-		if (local_only && (lock->l_readers || lock->l_writers)) {
-			/* This is a little bit gross, but much better than the
-			 * alternative: pretend that we got a blocking AST from
-			 * the server, so that when the lock is decref'd, it
-			 * will go away ... */
-			unlock_res(res);
-			LDLM_DEBUG(lock, "setting FL_LOCAL_ONLY");
-			if (lock->l_completion_ast)
-				lock->l_completion_ast(lock, 0, NULL);
-			LDLM_LOCK_RELEASE(lock);
-			continue;
-		}
-
-		if (client) {
-			struct lustre_handle lockh;
-
-			unlock_res(res);
-			ldlm_lock2handle(lock, &lockh);
-			rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
-			if (rc)
-				CERROR("ldlm_cli_cancel: %d\n", rc);
-		} else {
-			ldlm_resource_unlink_lock(lock);
-			unlock_res(res);
-			LDLM_DEBUG(lock, "Freeing a lock still held by a client node");
-			ldlm_lock_destroy(lock);
-		}
-		LDLM_LOCK_RELEASE(lock);
-	} while (1);
-}
-
-static int ldlm_resource_clean(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			       struct hlist_node *hnode, void *arg)
-{
-	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
-	__u64 flags = *(__u64 *)arg;
-
-	cleanup_resource(res, &res->lr_granted, flags);
-	cleanup_resource(res, &res->lr_converting, flags);
-	cleanup_resource(res, &res->lr_waiting, flags);
-
-	return 0;
-}
-
-static int ldlm_resource_complain(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-				  struct hlist_node *hnode, void *arg)
-{
-	struct ldlm_resource  *res = cfs_hash_object(hs, hnode);
-
-	lock_res(res);
-	CERROR("%s: namespace resource "DLDLMRES
-	       " (%p) refcount nonzero (%d) after lock cleanup; forcing cleanup.\n",
-	       ldlm_ns_name(ldlm_res_to_ns(res)), PLDLMRES(res), res,
-	       atomic_read(&res->lr_refcount) - 1);
-
-	ldlm_resource_dump(D_ERROR, res);
-	unlock_res(res);
-	return 0;
-}
-
-/**
- * Cancel and destroy all locks in the namespace.
- *
- * Typically used during evictions when server notified client that it was
- * evicted and all of its state needs to be destroyed.
- * Also used during shutdown.
- */
-int ldlm_namespace_cleanup(struct ldlm_namespace *ns, __u64 flags)
-{
-	if (ns == NULL) {
-		CDEBUG(D_INFO, "NULL ns, skipping cleanup\n");
-		return ELDLM_OK;
-	}
-
-	cfs_hash_for_each_nolock(ns->ns_rs_hash, ldlm_resource_clean, &flags);
-	cfs_hash_for_each_nolock(ns->ns_rs_hash, ldlm_resource_complain, NULL);
-	return ELDLM_OK;
-}
-EXPORT_SYMBOL(ldlm_namespace_cleanup);
-
-/**
- * Attempts to free namespace.
- *
- * Only used when namespace goes away, like during an unmount.
- */
-static int __ldlm_namespace_free(struct ldlm_namespace *ns, int force)
-{
-	/* At shutdown time, don't call the cancellation callback */
-	ldlm_namespace_cleanup(ns, force ? LDLM_FL_LOCAL_ONLY : 0);
-
-	if (atomic_read(&ns->ns_bref) > 0) {
-		struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
-		int rc;
-
-		CDEBUG(D_DLMTRACE,
-		       "dlm namespace %s free waiting on refcount %d\n",
-		       ldlm_ns_name(ns), atomic_read(&ns->ns_bref));
-force_wait:
-		if (force)
-			lwi = LWI_TIMEOUT(obd_timeout * HZ / 4, NULL, NULL);
-
-		rc = l_wait_event(ns->ns_waitq,
-				  atomic_read(&ns->ns_bref) == 0, &lwi);
-
-		/* Forced cleanups should be able to reclaim all references,
-		 * so it's safe to wait forever... we can't leak locks... */
-		if (force && rc == -ETIMEDOUT) {
-			LCONSOLE_ERROR("Forced cleanup waiting for %s namespace with %d resources in use, (rc=%d)\n",
-				       ldlm_ns_name(ns),
-				       atomic_read(&ns->ns_bref), rc);
-			goto force_wait;
-		}
-
-		if (atomic_read(&ns->ns_bref)) {
-			LCONSOLE_ERROR("Cleanup waiting for %s namespace with %d resources in use, (rc=%d)\n",
-				       ldlm_ns_name(ns),
-				       atomic_read(&ns->ns_bref), rc);
-			return ELDLM_NAMESPACE_EXISTS;
-		}
-		CDEBUG(D_DLMTRACE, "dlm namespace %s free done waiting\n",
-		       ldlm_ns_name(ns));
-	}
-
-	return ELDLM_OK;
-}
-
-/**
- * Performs various cleanups for passed \a ns to make it drop refc and be
- * ready for freeing. Waits for refc == 0.
- *
- * The following is done:
- * (0) Unregister \a ns from its list to make inaccessible for potential
- * users like pools thread and others;
- * (1) Clear all locks in \a ns.
- */
-void ldlm_namespace_free_prior(struct ldlm_namespace *ns,
-			       struct obd_import *imp,
-			       int force)
-{
-	int rc;
-
-	if (!ns)
-		return;
-
-	spin_lock(&ns->ns_lock);
-	ns->ns_stopping = 1;
-	spin_unlock(&ns->ns_lock);
-
-	/*
-	 * Can fail with -EINTR when force == 0 in which case try harder.
-	 */
-	rc = __ldlm_namespace_free(ns, force);
-	if (rc != ELDLM_OK) {
-		if (imp) {
-			ptlrpc_disconnect_import(imp, 0);
-			ptlrpc_invalidate_import(imp);
-		}
-
-		/*
-		 * With all requests dropped and the import inactive
-		 * we are guaranteed all reference will be dropped.
-		 */
-		rc = __ldlm_namespace_free(ns, 1);
-		LASSERT(rc == 0);
-	}
-}
-
-/**
- * Performs freeing memory structures related to \a ns. This is only done
- * when ldlm_namespce_free_prior() successfully removed all resources
- * referencing \a ns and its refc == 0.
- */
-void ldlm_namespace_free_post(struct ldlm_namespace *ns)
-{
-	if (!ns)
-		return;
-
-	/* Make sure that nobody can find this ns in its list. */
-	ldlm_namespace_unregister(ns, ns->ns_client);
-	/* Fini pool _before_ parent proc dir is removed. This is important as
-	 * ldlm_pool_fini() removes own proc dir which is child to @dir.
-	 * Removing it after @dir may cause oops. */
-	ldlm_pool_fini(&ns->ns_pool);
-
-	ldlm_namespace_debugfs_unregister(ns);
-	ldlm_namespace_sysfs_unregister(ns);
-	cfs_hash_putref(ns->ns_rs_hash);
-	/* Namespace \a ns should be not on list at this time, otherwise
-	 * this will cause issues related to using freed \a ns in poold
-	 * thread. */
-	LASSERT(list_empty(&ns->ns_list_chain));
-	kfree(ns);
-	ldlm_put_ref();
-}
-
-/**
- * Cleanup the resource, and free namespace.
- * bug 12864:
- * Deadlock issue:
- * proc1: destroy import
- *	class_disconnect_export(grab cl_sem) ->
- *	      -> ldlm_namespace_free ->
- *	      -> ldebugfs_remove(grab _lprocfs_lock).
- * proc2: read proc info
- *	lprocfs_fops_read(grab _lprocfs_lock) ->
- *	      -> osc_rd_active, etc(grab cl_sem).
- *
- * So that I have to split the ldlm_namespace_free into two parts - the first
- * part ldlm_namespace_free_prior is used to cleanup the resource which is
- * being used; the 2nd part ldlm_namespace_free_post is used to unregister the
- * lprocfs entries, and then free memory. It will be called w/o cli->cl_sem
- * held.
- */
-void ldlm_namespace_free(struct ldlm_namespace *ns,
-			 struct obd_import *imp,
-			 int force)
-{
-	ldlm_namespace_free_prior(ns, imp, force);
-	ldlm_namespace_free_post(ns);
-}
-EXPORT_SYMBOL(ldlm_namespace_free);
-
-void ldlm_namespace_get(struct ldlm_namespace *ns)
-{
-	atomic_inc(&ns->ns_bref);
-}
-EXPORT_SYMBOL(ldlm_namespace_get);
-
-/* This is only for callers that care about refcount */
-int ldlm_namespace_get_return(struct ldlm_namespace *ns)
-{
-	return atomic_inc_return(&ns->ns_bref);
-}
-
-void ldlm_namespace_put(struct ldlm_namespace *ns)
-{
-	if (atomic_dec_and_lock(&ns->ns_bref, &ns->ns_lock)) {
-		wake_up(&ns->ns_waitq);
-		spin_unlock(&ns->ns_lock);
-	}
-}
-EXPORT_SYMBOL(ldlm_namespace_put);
-
-/** Register \a ns in the list of namespaces */
-void ldlm_namespace_register(struct ldlm_namespace *ns, ldlm_side_t client)
-{
-	mutex_lock(ldlm_namespace_lock(client));
-	LASSERT(list_empty(&ns->ns_list_chain));
-	list_add(&ns->ns_list_chain, ldlm_namespace_inactive_list(client));
-	ldlm_namespace_nr_inc(client);
-	mutex_unlock(ldlm_namespace_lock(client));
-}
-
-/** Unregister \a ns from the list of namespaces. */
-void ldlm_namespace_unregister(struct ldlm_namespace *ns, ldlm_side_t client)
-{
-	mutex_lock(ldlm_namespace_lock(client));
-	LASSERT(!list_empty(&ns->ns_list_chain));
-	/* Some asserts and possibly other parts of the code are still
-	 * using list_empty(&ns->ns_list_chain). This is why it is
-	 * important to use list_del_init() here. */
-	list_del_init(&ns->ns_list_chain);
-	ldlm_namespace_nr_dec(client);
-	mutex_unlock(ldlm_namespace_lock(client));
-}
-
-/** Should be called with ldlm_namespace_lock(client) taken. */
-void ldlm_namespace_move_to_active_locked(struct ldlm_namespace *ns,
-					  ldlm_side_t client)
-{
-	LASSERT(!list_empty(&ns->ns_list_chain));
-	LASSERT(mutex_is_locked(ldlm_namespace_lock(client)));
-	list_move_tail(&ns->ns_list_chain, ldlm_namespace_list(client));
-}
-
-/** Should be called with ldlm_namespace_lock(client) taken. */
-void ldlm_namespace_move_to_inactive_locked(struct ldlm_namespace *ns,
-					    ldlm_side_t client)
-{
-	LASSERT(!list_empty(&ns->ns_list_chain));
-	LASSERT(mutex_is_locked(ldlm_namespace_lock(client)));
-	list_move_tail(&ns->ns_list_chain,
-		       ldlm_namespace_inactive_list(client));
-}
-
-/** Should be called with ldlm_namespace_lock(client) taken. */
-struct ldlm_namespace *ldlm_namespace_first_locked(ldlm_side_t client)
-{
-	LASSERT(mutex_is_locked(ldlm_namespace_lock(client)));
-	LASSERT(!list_empty(ldlm_namespace_list(client)));
-	return container_of(ldlm_namespace_list(client)->next,
-		struct ldlm_namespace, ns_list_chain);
-}
-
-/** Create and initialize new resource. */
-static struct ldlm_resource *ldlm_resource_new(void)
-{
-	struct ldlm_resource *res;
-	int idx;
-
-	OBD_SLAB_ALLOC_PTR_GFP(res, ldlm_resource_slab, GFP_NOFS);
-	if (res == NULL)
-		return NULL;
-
-	INIT_LIST_HEAD(&res->lr_granted);
-	INIT_LIST_HEAD(&res->lr_converting);
-	INIT_LIST_HEAD(&res->lr_waiting);
-
-	/* Initialize interval trees for each lock mode. */
-	for (idx = 0; idx < LCK_MODE_NUM; idx++) {
-		res->lr_itree[idx].lit_size = 0;
-		res->lr_itree[idx].lit_mode = 1 << idx;
-		res->lr_itree[idx].lit_root = NULL;
-	}
-
-	atomic_set(&res->lr_refcount, 1);
-	spin_lock_init(&res->lr_lock);
-	lu_ref_init(&res->lr_reference);
-
-	/* The creator of the resource must unlock the mutex after LVB
-	 * initialization. */
-	mutex_init(&res->lr_lvb_mutex);
-	mutex_lock(&res->lr_lvb_mutex);
-
-	return res;
-}
-
-/**
- * Return a reference to resource with given name, creating it if necessary.
- * Args: namespace with ns_lock unlocked
- * Locks: takes and releases NS hash-lock and res->lr_lock
- * Returns: referenced, unlocked ldlm_resource or NULL
- */
-struct ldlm_resource *
-ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
-		  const struct ldlm_res_id *name, ldlm_type_t type, int create)
-{
-	struct hlist_node     *hnode;
-	struct ldlm_resource *res;
-	struct cfs_hash_bd	 bd;
-	__u64		 version;
-	int		      ns_refcount = 0;
-
-	LASSERT(ns != NULL);
-	LASSERT(parent == NULL);
-	LASSERT(ns->ns_rs_hash != NULL);
-	LASSERT(name->name[0] != 0);
-
-	cfs_hash_bd_get_and_lock(ns->ns_rs_hash, (void *)name, &bd, 0);
-	hnode = cfs_hash_bd_lookup_locked(ns->ns_rs_hash, &bd, (void *)name);
-	if (hnode != NULL) {
-		cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 0);
-		res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
-		/* Synchronize with regard to resource creation. */
-		if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init) {
-			mutex_lock(&res->lr_lvb_mutex);
-			mutex_unlock(&res->lr_lvb_mutex);
-		}
-
-		if (unlikely(res->lr_lvb_len < 0)) {
-			ldlm_resource_putref(res);
-			res = NULL;
-		}
-		return res;
-	}
-
-	version = cfs_hash_bd_version_get(&bd);
-	cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 0);
-
-	if (create == 0)
-		return NULL;
-
-	LASSERTF(type >= LDLM_MIN_TYPE && type < LDLM_MAX_TYPE,
-		 "type: %d\n", type);
-	res = ldlm_resource_new();
-	if (!res)
-		return NULL;
-
-	res->lr_ns_bucket  = cfs_hash_bd_extra_get(ns->ns_rs_hash, &bd);
-	res->lr_name       = *name;
-	res->lr_type       = type;
-	res->lr_most_restr = LCK_NL;
-
-	cfs_hash_bd_lock(ns->ns_rs_hash, &bd, 1);
-	hnode = (version == cfs_hash_bd_version_get(&bd)) ?  NULL :
-		cfs_hash_bd_lookup_locked(ns->ns_rs_hash, &bd, (void *)name);
-
-	if (hnode != NULL) {
-		/* Someone won the race and already added the resource. */
-		cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 1);
-		/* Clean lu_ref for failed resource. */
-		lu_ref_fini(&res->lr_reference);
-		/* We have taken lr_lvb_mutex. Drop it. */
-		mutex_unlock(&res->lr_lvb_mutex);
-		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof(*res));
-
-		res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
-		/* Synchronize with regard to resource creation. */
-		if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init) {
-			mutex_lock(&res->lr_lvb_mutex);
-			mutex_unlock(&res->lr_lvb_mutex);
-		}
-
-		if (unlikely(res->lr_lvb_len < 0)) {
-			ldlm_resource_putref(res);
-			res = NULL;
-		}
-		return res;
-	}
-	/* We won! Let's add the resource. */
-	cfs_hash_bd_add_locked(ns->ns_rs_hash, &bd, &res->lr_hash);
-	if (cfs_hash_bd_count_get(&bd) == 1)
-		ns_refcount = ldlm_namespace_get_return(ns);
-
-	cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 1);
-	if (ns->ns_lvbo && ns->ns_lvbo->lvbo_init) {
-		int rc;
-
-		OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_CREATE_RESOURCE, 2);
-		rc = ns->ns_lvbo->lvbo_init(res);
-		if (rc < 0) {
-			CERROR("%s: lvbo_init failed for resource %#llx:%#llx: rc = %d\n",
-			       ns->ns_obd->obd_name, name->name[0],
-			       name->name[1], rc);
-			kfree(res->lr_lvb_data);
-			res->lr_lvb_data = NULL;
-			res->lr_lvb_len = rc;
-			mutex_unlock(&res->lr_lvb_mutex);
-			ldlm_resource_putref(res);
-			return NULL;
-		}
-	}
-
-	/* We create resource with locked lr_lvb_mutex. */
-	mutex_unlock(&res->lr_lvb_mutex);
-
-	/* Let's see if we happened to be the very first resource in this
-	 * namespace. If so, and this is a client namespace, we need to move
-	 * the namespace into the active namespaces list to be patrolled by
-	 * the ldlm_poold. */
-	if (ns_is_client(ns) && ns_refcount == 1) {
-		mutex_lock(ldlm_namespace_lock(LDLM_NAMESPACE_CLIENT));
-		ldlm_namespace_move_to_active_locked(ns, LDLM_NAMESPACE_CLIENT);
-		mutex_unlock(ldlm_namespace_lock(LDLM_NAMESPACE_CLIENT));
-	}
-
-	return res;
-}
-EXPORT_SYMBOL(ldlm_resource_get);
-
-struct ldlm_resource *ldlm_resource_getref(struct ldlm_resource *res)
-{
-	LASSERT(res != NULL);
-	LASSERT(res != LP_POISON);
-	atomic_inc(&res->lr_refcount);
-	CDEBUG(D_INFO, "getref res: %p count: %d\n", res,
-	       atomic_read(&res->lr_refcount));
-	return res;
-}
-
-static void __ldlm_resource_putref_final(struct cfs_hash_bd *bd,
-					 struct ldlm_resource *res)
-{
-	struct ldlm_ns_bucket *nsb = res->lr_ns_bucket;
-
-	if (!list_empty(&res->lr_granted)) {
-		ldlm_resource_dump(D_ERROR, res);
-		LBUG();
-	}
-
-	if (!list_empty(&res->lr_converting)) {
-		ldlm_resource_dump(D_ERROR, res);
-		LBUG();
-	}
-
-	if (!list_empty(&res->lr_waiting)) {
-		ldlm_resource_dump(D_ERROR, res);
-		LBUG();
-	}
-
-	cfs_hash_bd_del_locked(nsb->nsb_namespace->ns_rs_hash,
-			       bd, &res->lr_hash);
-	lu_ref_fini(&res->lr_reference);
-	if (cfs_hash_bd_count_get(bd) == 0)
-		ldlm_namespace_put(nsb->nsb_namespace);
-}
-
-/* Returns 1 if the resource was freed, 0 if it remains. */
-int ldlm_resource_putref(struct ldlm_resource *res)
-{
-	struct ldlm_namespace *ns = ldlm_res_to_ns(res);
-	struct cfs_hash_bd   bd;
-
-	LASSERT_ATOMIC_GT_LT(&res->lr_refcount, 0, LI_POISON);
-	CDEBUG(D_INFO, "putref res: %p count: %d\n",
-	       res, atomic_read(&res->lr_refcount) - 1);
-
-	cfs_hash_bd_get(ns->ns_rs_hash, &res->lr_name, &bd);
-	if (cfs_hash_bd_dec_and_lock(ns->ns_rs_hash, &bd, &res->lr_refcount)) {
-		__ldlm_resource_putref_final(&bd, res);
-		cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 1);
-		if (ns->ns_lvbo && ns->ns_lvbo->lvbo_free)
-			ns->ns_lvbo->lvbo_free(res);
-		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof(*res));
-		return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(ldlm_resource_putref);
-
-/* Returns 1 if the resource was freed, 0 if it remains. */
-int ldlm_resource_putref_locked(struct ldlm_resource *res)
-{
-	struct ldlm_namespace *ns = ldlm_res_to_ns(res);
-
-	LASSERT_ATOMIC_GT_LT(&res->lr_refcount, 0, LI_POISON);
-	CDEBUG(D_INFO, "putref res: %p count: %d\n",
-	       res, atomic_read(&res->lr_refcount) - 1);
-
-	if (atomic_dec_and_test(&res->lr_refcount)) {
-		struct cfs_hash_bd bd;
-
-		cfs_hash_bd_get(ldlm_res_to_ns(res)->ns_rs_hash,
-				&res->lr_name, &bd);
-		__ldlm_resource_putref_final(&bd, res);
-		cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 1);
-		/* NB: ns_rs_hash is created with CFS_HASH_NO_ITEMREF,
-		 * so we should never be here while calling cfs_hash_del,
-		 * cfs_hash_for_each_nolock is the only case we can get
-		 * here, which is safe to release cfs_hash_bd_lock.
-		 */
-		if (ns->ns_lvbo && ns->ns_lvbo->lvbo_free)
-			ns->ns_lvbo->lvbo_free(res);
-		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof(*res));
-
-		cfs_hash_bd_lock(ns->ns_rs_hash, &bd, 1);
-		return 1;
-	}
-	return 0;
-}
-
-/**
- * Add a lock into a given resource into specified lock list.
- */
-void ldlm_resource_add_lock(struct ldlm_resource *res, struct list_head *head,
-			    struct ldlm_lock *lock)
-{
-	check_res_locked(res);
-
-	LDLM_DEBUG(lock, "About to add this lock:\n");
-
-	if (lock->l_flags & LDLM_FL_DESTROYED) {
-		CDEBUG(D_OTHER, "Lock destroyed, not adding to resource\n");
-		return;
-	}
-
-	LASSERT(list_empty(&lock->l_res_link));
-
-	list_add_tail(&lock->l_res_link, head);
-}
-
-/**
- * Insert a lock into resource after specified lock.
- *
- * Obtain resource description from the lock we are inserting after.
- */
-void ldlm_resource_insert_lock_after(struct ldlm_lock *original,
-				     struct ldlm_lock *new)
-{
-	struct ldlm_resource *res = original->l_resource;
-
-	check_res_locked(res);
-
-	ldlm_resource_dump(D_INFO, res);
-	LDLM_DEBUG(new, "About to insert this lock after %p:\n", original);
-
-	if (new->l_flags & LDLM_FL_DESTROYED) {
-		CDEBUG(D_OTHER, "Lock destroyed, not adding to resource\n");
-		goto out;
-	}
-
-	LASSERT(list_empty(&new->l_res_link));
-
-	list_add(&new->l_res_link, &original->l_res_link);
- out:;
-}
-
-void ldlm_resource_unlink_lock(struct ldlm_lock *lock)
-{
-	int type = lock->l_resource->lr_type;
-
-	check_res_locked(lock->l_resource);
-	if (type == LDLM_IBITS || type == LDLM_PLAIN)
-		ldlm_unlink_lock_skiplist(lock);
-	else if (type == LDLM_EXTENT)
-		ldlm_extent_unlink_lock(lock);
-	list_del_init(&lock->l_res_link);
-}
-EXPORT_SYMBOL(ldlm_resource_unlink_lock);
-
-void ldlm_res2desc(struct ldlm_resource *res, struct ldlm_resource_desc *desc)
-{
-	desc->lr_type = res->lr_type;
-	desc->lr_name = res->lr_name;
-}
-
-/**
- * Print information about all locks in all namespaces on this node to debug
- * log.
- */
-void ldlm_dump_all_namespaces(ldlm_side_t client, int level)
-{
-	struct list_head *tmp;
-
-	if (!((libcfs_debug | D_ERROR) & level))
-		return;
-
-	mutex_lock(ldlm_namespace_lock(client));
-
-	list_for_each(tmp, ldlm_namespace_list(client)) {
-		struct ldlm_namespace *ns;
-
-		ns = list_entry(tmp, struct ldlm_namespace, ns_list_chain);
-		ldlm_namespace_dump(level, ns);
-	}
-
-	mutex_unlock(ldlm_namespace_lock(client));
-}
-EXPORT_SYMBOL(ldlm_dump_all_namespaces);
-
-static int ldlm_res_hash_dump(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			      struct hlist_node *hnode, void *arg)
-{
-	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
-	int    level = (int)(unsigned long)arg;
-
-	lock_res(res);
-	ldlm_resource_dump(level, res);
-	unlock_res(res);
-
-	return 0;
-}
-
-/**
- * Print information about all locks in this namespace on this node to debug
- * log.
- */
-void ldlm_namespace_dump(int level, struct ldlm_namespace *ns)
-{
-	if (!((libcfs_debug | D_ERROR) & level))
-		return;
-
-	CDEBUG(level, "--- Namespace: %s (rc: %d, side: %s)\n",
-	       ldlm_ns_name(ns), atomic_read(&ns->ns_bref),
-	       ns_is_client(ns) ? "client" : "server");
-
-	if (time_before(cfs_time_current(), ns->ns_next_dump))
-		return;
-
-	cfs_hash_for_each_nolock(ns->ns_rs_hash,
-				 ldlm_res_hash_dump,
-				 (void *)(unsigned long)level);
-	spin_lock(&ns->ns_lock);
-	ns->ns_next_dump = cfs_time_shift(10);
-	spin_unlock(&ns->ns_lock);
-}
-EXPORT_SYMBOL(ldlm_namespace_dump);
-
-/**
- * Print information about all locks in this resource to debug log.
- */
-void ldlm_resource_dump(int level, struct ldlm_resource *res)
-{
-	struct ldlm_lock *lock;
-	unsigned int granted = 0;
-
-	CLASSERT(RES_NAME_SIZE == 4);
-
-	if (!((libcfs_debug | D_ERROR) & level))
-		return;
-
-	CDEBUG(level, "--- Resource: "DLDLMRES" (%p) refcount = %d\n",
-	       PLDLMRES(res), res, atomic_read(&res->lr_refcount));
-
-	if (!list_empty(&res->lr_granted)) {
-		CDEBUG(level, "Granted locks (in reverse order):\n");
-		list_for_each_entry_reverse(lock, &res->lr_granted,
-						l_res_link) {
-			LDLM_DEBUG_LIMIT(level, lock, "###");
-			if (!(level & D_CANTMASK) &&
-			    ++granted > ldlm_dump_granted_max) {
-				CDEBUG(level, "only dump %d granted locks to avoid DDOS.\n",
-				       granted);
-				break;
-			}
-		}
-	}
-	if (!list_empty(&res->lr_converting)) {
-		CDEBUG(level, "Converting locks:\n");
-		list_for_each_entry(lock, &res->lr_converting, l_res_link)
-			LDLM_DEBUG_LIMIT(level, lock, "###");
-	}
-	if (!list_empty(&res->lr_waiting)) {
-		CDEBUG(level, "Waiting locks:\n");
-		list_for_each_entry(lock, &res->lr_waiting, l_res_link)
-			LDLM_DEBUG_LIMIT(level, lock, "###");
-	}
-}
diff --git a/drivers/staging/lustre/lustre/libcfs/Makefile b/drivers/staging/lustre/lustre/libcfs/Makefile
deleted file mode 100644
index ec98f44a10dd..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/Makefile
+++ /dev/null
@@ -1,18 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += libcfs.o
-
-libcfs-linux-objs := linux-tracefile.o linux-debug.o
-libcfs-linux-objs += linux-prim.o linux-cpu.o
-libcfs-linux-objs += linux-curproc.o
-libcfs-linux-objs += linux-module.o
-libcfs-linux-objs += linux-crypto.o
-libcfs-linux-objs += linux-crypto-adler.o
-libcfs-linux-objs += linux-mem.o
-
-libcfs-linux-objs := $(addprefix linux/,$(libcfs-linux-objs))
-
-libcfs-all-objs := debug.o fail.o nidstrings.o module.o tracefile.o \
-		   libcfs_string.o hash.o kernel_user_comm.o \
-		   prng.o workitem.o libcfs_cpu.o \
-		   libcfs_mem.o libcfs_lock.o
-
-libcfs-objs := $(libcfs-linux-objs) $(libcfs-all-objs)
diff --git a/drivers/staging/lustre/lustre/libcfs/debug.c b/drivers/staging/lustre/lustre/libcfs/debug.c
deleted file mode 100644
index e93f556fac0d..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/debug.c
+++ /dev/null
@@ -1,575 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/debug.c
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- *
- */
-
-# define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "tracefile.h"
-
-static char debug_file_name[1024];
-
-unsigned int libcfs_subsystem_debug = ~0;
-module_param(libcfs_subsystem_debug, int, 0644);
-MODULE_PARM_DESC(libcfs_subsystem_debug, "Lustre kernel debug subsystem mask");
-EXPORT_SYMBOL(libcfs_subsystem_debug);
-
-unsigned int libcfs_debug = (D_CANTMASK |
-			     D_NETERROR | D_HA | D_CONFIG | D_IOCTL);
-module_param(libcfs_debug, int, 0644);
-MODULE_PARM_DESC(libcfs_debug, "Lustre kernel debug mask");
-EXPORT_SYMBOL(libcfs_debug);
-
-static int libcfs_param_debug_mb_set(const char *val,
-				     const struct kernel_param *kp)
-{
-	int rc;
-	unsigned num;
-
-	rc = kstrtouint(val, 0, &num);
-	if (rc < 0)
-		return rc;
-
-	if (!*((unsigned int *)kp->arg)) {
-		*((unsigned int *)kp->arg) = num;
-		return 0;
-	}
-
-	rc = cfs_trace_set_debug_mb(num);
-
-	if (!rc)
-		*((unsigned int *)kp->arg) = cfs_trace_get_debug_mb();
-
-	return rc;
-}
-
-/* While debug_mb setting look like unsigned int, in fact
- * it needs quite a bunch of extra processing, so we define special
- * debugmb parameter type with corresponding methods to handle this case */
-static struct kernel_param_ops param_ops_debugmb = {
-	.set = libcfs_param_debug_mb_set,
-	.get = param_get_uint,
-};
-
-#define param_check_debugmb(name, p) \
-		__param_check(name, p, unsigned int)
-
-static unsigned int libcfs_debug_mb;
-module_param(libcfs_debug_mb, debugmb, 0644);
-MODULE_PARM_DESC(libcfs_debug_mb, "Total debug buffer size.");
-EXPORT_SYMBOL(libcfs_debug_mb);
-
-unsigned int libcfs_printk = D_CANTMASK;
-module_param(libcfs_printk, uint, 0644);
-MODULE_PARM_DESC(libcfs_printk, "Lustre kernel debug console mask");
-EXPORT_SYMBOL(libcfs_printk);
-
-unsigned int libcfs_console_ratelimit = 1;
-module_param(libcfs_console_ratelimit, uint, 0644);
-MODULE_PARM_DESC(libcfs_console_ratelimit, "Lustre kernel debug console ratelimit (0 to disable)");
-EXPORT_SYMBOL(libcfs_console_ratelimit);
-
-static int param_set_delay_minmax(const char *val,
-				  const struct kernel_param *kp,
-				  long min, long max)
-{
-	long d;
-	int sec;
-	int rc;
-
-	rc = kstrtoint(val, 0, &sec);
-	if (rc)
-		return -EINVAL;
-
-	d = cfs_time_seconds(sec) / 100;
-	if (d < min || d > max)
-		return -EINVAL;
-
-	*((unsigned int *)kp->arg) = d;
-
-	return 0;
-}
-
-static int param_get_delay(char *buffer, const struct kernel_param *kp)
-{
-	unsigned int d = *(unsigned int *)kp->arg;
-
-	return sprintf(buffer, "%u", (unsigned int)cfs_duration_sec(d * 100));
-}
-
-unsigned int libcfs_console_max_delay;
-EXPORT_SYMBOL(libcfs_console_max_delay);
-unsigned int libcfs_console_min_delay;
-EXPORT_SYMBOL(libcfs_console_min_delay);
-
-static int param_set_console_max_delay(const char *val,
-				       const struct kernel_param *kp)
-{
-	return param_set_delay_minmax(val, kp,
-				      libcfs_console_min_delay, INT_MAX);
-}
-
-static struct kernel_param_ops param_ops_console_max_delay = {
-	.set = param_set_console_max_delay,
-	.get = param_get_delay,
-};
-
-#define param_check_console_max_delay(name, p) \
-		__param_check(name, p, unsigned int)
-
-module_param(libcfs_console_max_delay, console_max_delay, 0644);
-MODULE_PARM_DESC(libcfs_console_max_delay, "Lustre kernel debug console max delay (jiffies)");
-
-static int param_set_console_min_delay(const char *val,
-				       const struct kernel_param *kp)
-{
-	return param_set_delay_minmax(val, kp,
-				      1, libcfs_console_max_delay);
-}
-
-static struct kernel_param_ops param_ops_console_min_delay = {
-	.set = param_set_console_min_delay,
-	.get = param_get_delay,
-};
-
-#define param_check_console_min_delay(name, p) \
-		__param_check(name, p, unsigned int)
-
-module_param(libcfs_console_min_delay, console_min_delay, 0644);
-MODULE_PARM_DESC(libcfs_console_min_delay, "Lustre kernel debug console min delay (jiffies)");
-
-static int param_set_uint_minmax(const char *val,
-				 const struct kernel_param *kp,
-				 unsigned int min, unsigned int max)
-{
-	unsigned int num;
-	int ret;
-
-	if (!val)
-		return -EINVAL;
-	ret = kstrtouint(val, 0, &num);
-	if (ret < 0 || num < min || num > max)
-		return -EINVAL;
-	*((unsigned int *)kp->arg) = num;
-	return 0;
-}
-
-static int param_set_uintpos(const char *val, const struct kernel_param *kp)
-{
-	return param_set_uint_minmax(val, kp, 1, -1);
-}
-
-static struct kernel_param_ops param_ops_uintpos = {
-	.set = param_set_uintpos,
-	.get = param_get_uint,
-};
-
-#define param_check_uintpos(name, p) \
-		__param_check(name, p, unsigned int)
-
-unsigned int libcfs_console_backoff = CDEBUG_DEFAULT_BACKOFF;
-module_param(libcfs_console_backoff, uintpos, 0644);
-MODULE_PARM_DESC(libcfs_console_backoff, "Lustre kernel debug console backoff factor");
-EXPORT_SYMBOL(libcfs_console_backoff);
-
-unsigned int libcfs_debug_binary = 1;
-EXPORT_SYMBOL(libcfs_debug_binary);
-
-unsigned int libcfs_stack = 3 * THREAD_SIZE / 4;
-EXPORT_SYMBOL(libcfs_stack);
-
-unsigned int libcfs_catastrophe;
-EXPORT_SYMBOL(libcfs_catastrophe);
-
-unsigned int libcfs_panic_on_lbug = 1;
-module_param(libcfs_panic_on_lbug, uint, 0644);
-MODULE_PARM_DESC(libcfs_panic_on_lbug, "Lustre kernel panic on LBUG");
-EXPORT_SYMBOL(libcfs_panic_on_lbug);
-
-static wait_queue_head_t debug_ctlwq;
-
-char libcfs_debug_file_path_arr[PATH_MAX] = LIBCFS_DEBUG_FILE_PATH_DEFAULT;
-
-/* We need to pass a pointer here, but elsewhere this must be a const */
-static char *libcfs_debug_file_path;
-module_param(libcfs_debug_file_path, charp, 0644);
-MODULE_PARM_DESC(libcfs_debug_file_path,
-		 "Path for dumping debug logs, set 'NONE' to prevent log dumping");
-
-int libcfs_panic_in_progress;
-
-/* libcfs_debug_token2mask() expects the returned
- * string in lower-case */
-static const char *
-libcfs_debug_subsys2str(int subsys)
-{
-	switch (1 << subsys) {
-	default:
-		return NULL;
-	case S_UNDEFINED:
-		return "undefined";
-	case S_MDC:
-		return "mdc";
-	case S_MDS:
-		return "mds";
-	case S_OSC:
-		return "osc";
-	case S_OST:
-		return "ost";
-	case S_CLASS:
-		return "class";
-	case S_LOG:
-		return "log";
-	case S_LLITE:
-		return "llite";
-	case S_RPC:
-		return "rpc";
-	case S_LNET:
-		return "lnet";
-	case S_LND:
-		return "lnd";
-	case S_PINGER:
-		return "pinger";
-	case S_FILTER:
-		return "filter";
-	case S_ECHO:
-		return "echo";
-	case S_LDLM:
-		return "ldlm";
-	case S_LOV:
-		return "lov";
-	case S_LQUOTA:
-		return "lquota";
-	case S_OSD:
-		return "osd";
-	case S_LMV:
-		return "lmv";
-	case S_SEC:
-		return "sec";
-	case S_GSS:
-		return "gss";
-	case S_MGC:
-		return "mgc";
-	case S_MGS:
-		return "mgs";
-	case S_FID:
-		return "fid";
-	case S_FLD:
-		return "fld";
-	}
-}
-
-/* libcfs_debug_token2mask() expects the returned
- * string in lower-case */
-static const char *
-libcfs_debug_dbg2str(int debug)
-{
-	switch (1 << debug) {
-	default:
-		return NULL;
-	case D_TRACE:
-		return "trace";
-	case D_INODE:
-		return "inode";
-	case D_SUPER:
-		return "super";
-	case D_EXT2:
-		return "ext2";
-	case D_MALLOC:
-		return "malloc";
-	case D_CACHE:
-		return "cache";
-	case D_INFO:
-		return "info";
-	case D_IOCTL:
-		return "ioctl";
-	case D_NETERROR:
-		return "neterror";
-	case D_NET:
-		return "net";
-	case D_WARNING:
-		return "warning";
-	case D_BUFFS:
-		return "buffs";
-	case D_OTHER:
-		return "other";
-	case D_DENTRY:
-		return "dentry";
-	case D_NETTRACE:
-		return "nettrace";
-	case D_PAGE:
-		return "page";
-	case D_DLMTRACE:
-		return "dlmtrace";
-	case D_ERROR:
-		return "error";
-	case D_EMERG:
-		return "emerg";
-	case D_HA:
-		return "ha";
-	case D_RPCTRACE:
-		return "rpctrace";
-	case D_VFSTRACE:
-		return "vfstrace";
-	case D_READA:
-		return "reada";
-	case D_MMAP:
-		return "mmap";
-	case D_CONFIG:
-		return "config";
-	case D_CONSOLE:
-		return "console";
-	case D_QUOTA:
-		return "quota";
-	case D_SEC:
-		return "sec";
-	case D_LFSCK:
-		return "lfsck";
-	}
-}
-
-int
-libcfs_debug_mask2str(char *str, int size, int mask, int is_subsys)
-{
-	const char *(*fn)(int bit) = is_subsys ? libcfs_debug_subsys2str :
-						 libcfs_debug_dbg2str;
-	int	   len = 0;
-	const char   *token;
-	int	   i;
-
-	if (mask == 0) {			/* "0" */
-		if (size > 0)
-			str[0] = '0';
-		len = 1;
-	} else {				/* space-separated tokens */
-		for (i = 0; i < 32; i++) {
-			if ((mask & (1 << i)) == 0)
-				continue;
-
-			token = fn(i);
-			if (token == NULL)	      /* unused bit */
-				continue;
-
-			if (len > 0) {		  /* separator? */
-				if (len < size)
-					str[len] = ' ';
-				len++;
-			}
-
-			while (*token != 0) {
-				if (len < size)
-					str[len] = *token;
-				token++;
-				len++;
-			}
-		}
-	}
-
-	/* terminate 'str' */
-	if (len < size)
-		str[len] = 0;
-	else
-		str[size - 1] = 0;
-
-	return len;
-}
-
-int
-libcfs_debug_str2mask(int *mask, const char *str, int is_subsys)
-{
-	const char *(*fn)(int bit) = is_subsys ? libcfs_debug_subsys2str :
-						 libcfs_debug_dbg2str;
-	int	 m = 0;
-	int	 matched;
-	int	 n;
-	int	 t;
-
-	/* Allow a number for backwards compatibility */
-
-	for (n = strlen(str); n > 0; n--)
-		if (!isspace(str[n-1]))
-			break;
-	matched = n;
-	t = sscanf(str, "%i%n", &m, &matched);
-	if (t >= 1 && matched == n) {
-		/* don't print warning for lctl set_param debug=0 or -1 */
-		if (m != 0 && m != -1)
-			CWARN("You are trying to use a numerical value for the mask - this will be deprecated in a future release.\n");
-		*mask = m;
-		return 0;
-	}
-
-	return cfs_str2mask(str, fn, mask, is_subsys ? 0 : D_CANTMASK,
-			    0xffffffff);
-}
-
-/**
- * Dump Lustre log to ::debug_file_path by calling tracefile_dump_all_pages()
- */
-void libcfs_debug_dumplog_internal(void *arg)
-{
-	void *journal_info;
-
-	journal_info = current->journal_info;
-	current->journal_info = NULL;
-
-	if (strncmp(libcfs_debug_file_path_arr, "NONE", 4) != 0) {
-		snprintf(debug_file_name, sizeof(debug_file_name) - 1,
-			 "%s.%ld.%ld", libcfs_debug_file_path_arr,
-			 get_seconds(), (long_ptr_t)arg);
-		pr_alert("LustreError: dumping log to %s\n",
-		       debug_file_name);
-		cfs_tracefile_dump_all_pages(debug_file_name);
-		libcfs_run_debug_log_upcall(debug_file_name);
-	}
-
-	current->journal_info = journal_info;
-}
-
-static int libcfs_debug_dumplog_thread(void *arg)
-{
-	libcfs_debug_dumplog_internal(arg);
-	wake_up(&debug_ctlwq);
-	return 0;
-}
-
-void libcfs_debug_dumplog(void)
-{
-	wait_queue_t wait;
-	struct task_struct *dumper;
-
-	/* we're being careful to ensure that the kernel thread is
-	 * able to set our state to running as it exits before we
-	 * get to schedule() */
-	init_waitqueue_entry(&wait, current);
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&debug_ctlwq, &wait);
-
-	dumper = kthread_run(libcfs_debug_dumplog_thread,
-			     (void *)(long)current_pid(),
-			     "libcfs_debug_dumper");
-	if (IS_ERR(dumper))
-		pr_err("LustreError: cannot start log dump thread: %ld\n",
-		       PTR_ERR(dumper));
-	else
-		schedule();
-
-	/* be sure to teardown if cfs_create_thread() failed */
-	remove_wait_queue(&debug_ctlwq, &wait);
-	set_current_state(TASK_RUNNING);
-}
-EXPORT_SYMBOL(libcfs_debug_dumplog);
-
-int libcfs_debug_init(unsigned long bufsize)
-{
-	int    rc = 0;
-	unsigned int max = libcfs_debug_mb;
-
-	init_waitqueue_head(&debug_ctlwq);
-
-	if (libcfs_console_max_delay <= 0 || /* not set by user or */
-	    libcfs_console_min_delay <= 0 || /* set to invalid values */
-	    libcfs_console_min_delay >= libcfs_console_max_delay) {
-		libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
-		libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
-	}
-
-	if (libcfs_debug_file_path != NULL) {
-		strncpy(libcfs_debug_file_path_arr,
-			libcfs_debug_file_path, PATH_MAX-1);
-		libcfs_debug_file_path_arr[PATH_MAX - 1] = '\0';
-	}
-
-	/* If libcfs_debug_mb is set to an invalid value or uninitialized
-	 * then just make the total buffers smp_num_cpus * TCD_MAX_PAGES */
-	if (max > cfs_trace_max_debug_mb() || max < num_possible_cpus()) {
-		max = TCD_MAX_PAGES;
-	} else {
-		max = max / num_possible_cpus();
-		max <<= (20 - PAGE_CACHE_SHIFT);
-	}
-	rc = cfs_tracefile_init(max);
-
-	if (rc == 0) {
-		libcfs_register_panic_notifier();
-		libcfs_debug_mb = cfs_trace_get_debug_mb();
-	}
-
-	return rc;
-}
-
-int libcfs_debug_cleanup(void)
-{
-	libcfs_unregister_panic_notifier();
-	cfs_tracefile_exit();
-	return 0;
-}
-
-int libcfs_debug_clear_buffer(void)
-{
-	cfs_trace_flush_pages();
-	return 0;
-}
-
-/* Debug markers, although printed by S_LNET
- * should not be be marked as such. */
-#undef DEBUG_SUBSYSTEM
-#define DEBUG_SUBSYSTEM S_UNDEFINED
-int libcfs_debug_mark_buffer(const char *text)
-{
-	CDEBUG(D_TRACE,
-	       "***************************************************\n");
-	LCONSOLE(D_WARNING, "DEBUG MARKER: %s\n", text);
-	CDEBUG(D_TRACE,
-	       "***************************************************\n");
-
-	return 0;
-}
-#undef DEBUG_SUBSYSTEM
-#define DEBUG_SUBSYSTEM S_LNET
-
-void libcfs_debug_set_level(unsigned int debug_level)
-{
-	pr_warn("Lustre: Setting portals debug level to %08x\n",
-	       debug_level);
-	libcfs_debug = debug_level;
-}
-
-EXPORT_SYMBOL(libcfs_debug_set_level);
diff --git a/drivers/staging/lustre/lustre/libcfs/fail.c b/drivers/staging/lustre/lustre/libcfs/fail.c
deleted file mode 100644
index 42d615fbd664..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/fail.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see http://www.gnu.org/licenses
- *
- * Please contact Oracle Corporation, Inc., 500 Oracle Parkway, Redwood Shores,
- * CA 94065 USA or visit www.oracle.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Oracle Corporation, Inc.
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-unsigned long cfs_fail_loc = 0;
-EXPORT_SYMBOL(cfs_fail_loc);
-
-unsigned int cfs_fail_val = 0;
-EXPORT_SYMBOL(cfs_fail_val);
-
-DECLARE_WAIT_QUEUE_HEAD(cfs_race_waitq);
-EXPORT_SYMBOL(cfs_race_waitq);
-
-int cfs_race_state;
-EXPORT_SYMBOL(cfs_race_state);
-
-int __cfs_fail_check_set(__u32 id, __u32 value, int set)
-{
-	static atomic_t cfs_fail_count = ATOMIC_INIT(0);
-
-	LASSERT(!(id & CFS_FAIL_ONCE));
-
-	if ((cfs_fail_loc & (CFS_FAILED | CFS_FAIL_ONCE)) ==
-	    (CFS_FAILED | CFS_FAIL_ONCE)) {
-		atomic_set(&cfs_fail_count, 0); /* paranoia */
-		return 0;
-	}
-
-	/* Fail 1/cfs_fail_val times */
-	if (cfs_fail_loc & CFS_FAIL_RAND) {
-		if (cfs_fail_val < 2 || cfs_rand() % cfs_fail_val > 0)
-			return 0;
-	}
-
-	/* Skip the first cfs_fail_val, then fail */
-	if (cfs_fail_loc & CFS_FAIL_SKIP) {
-		if (atomic_inc_return(&cfs_fail_count) <= cfs_fail_val)
-			return 0;
-	}
-
-	/* check cfs_fail_val... */
-	if (set == CFS_FAIL_LOC_VALUE) {
-		if (cfs_fail_val != -1 && cfs_fail_val != value)
-			return 0;
-	}
-
-	/* Fail cfs_fail_val times, overridden by FAIL_ONCE */
-	if (cfs_fail_loc & CFS_FAIL_SOME &&
-	    (!(cfs_fail_loc & CFS_FAIL_ONCE) || cfs_fail_val <= 1)) {
-		int count = atomic_inc_return(&cfs_fail_count);
-
-		if (count >= cfs_fail_val) {
-			set_bit(CFS_FAIL_ONCE_BIT, &cfs_fail_loc);
-			atomic_set(&cfs_fail_count, 0);
-			/* we are lost race to increase  */
-			if (count > cfs_fail_val)
-				return 0;
-		}
-	}
-
-	if ((set == CFS_FAIL_LOC_ORSET || set == CFS_FAIL_LOC_RESET) &&
-	    (value & CFS_FAIL_ONCE))
-		set_bit(CFS_FAIL_ONCE_BIT, &cfs_fail_loc);
-	/* Lost race to set CFS_FAILED_BIT. */
-	if (test_and_set_bit(CFS_FAILED_BIT, &cfs_fail_loc)) {
-		/* If CFS_FAIL_ONCE is valid, only one process can fail,
-		 * otherwise multi-process can fail at the same time. */
-		if (cfs_fail_loc & CFS_FAIL_ONCE)
-			return 0;
-	}
-
-	switch (set) {
-	case CFS_FAIL_LOC_NOSET:
-	case CFS_FAIL_LOC_VALUE:
-		break;
-	case CFS_FAIL_LOC_ORSET:
-		cfs_fail_loc |= value & ~(CFS_FAILED | CFS_FAIL_ONCE);
-		break;
-	case CFS_FAIL_LOC_RESET:
-		cfs_fail_loc = value;
-		break;
-	default:
-		LASSERTF(0, "called with bad set %u\n", set);
-		break;
-	}
-
-	return 1;
-}
-EXPORT_SYMBOL(__cfs_fail_check_set);
-
-int __cfs_fail_timeout_set(__u32 id, __u32 value, int ms, int set)
-{
-	int ret;
-
-	ret = __cfs_fail_check_set(id, value, set);
-	if (ret) {
-		CERROR("cfs_fail_timeout id %x sleeping for %dms\n",
-		       id, ms);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(ms) / 1000);
-		CERROR("cfs_fail_timeout id %x awake\n", id);
-	}
-	return ret;
-}
-EXPORT_SYMBOL(__cfs_fail_timeout_set);
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
deleted file mode 100644
index 0ed063145230..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ /dev/null
@@ -1,2098 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/hash.c
- *
- * Implement a hash class for hash process in lustre system.
- *
- * Author: YuZhangyong <yzy@clusterfs.com>
- *
- * 2008-08-15: Brian Behlendorf <behlendorf1@llnl.gov>
- * - Simplified API and improved documentation
- * - Added per-hash feature flags:
- *   * CFS_HASH_DEBUG additional validation
- *   * CFS_HASH_REHASH dynamic rehashing
- * - Added per-hash statistics
- * - General performance enhancements
- *
- * 2009-07-31: Liang Zhen <zhen.liang@sun.com>
- * - move all stuff to libcfs
- * - don't allow cur_bits != max_bits without setting of CFS_HASH_REHASH
- * - ignore hs_rwlock if without CFS_HASH_REHASH setting
- * - buckets are allocated one by one(instead of contiguous memory),
- *   to avoid unnecessary cacheline conflict
- *
- * 2010-03-01: Liang Zhen <zhen.liang@sun.com>
- * - "bucket" is a group of hlist_head now, user can specify bucket size
- *   by bkt_bits of cfs_hash_create(), all hlist_heads in a bucket share
- *   one lock for reducing memory overhead.
- *
- * - support lockless hash, caller will take care of locks:
- *   avoid lock overhead for hash tables that are already protected
- *   by locking in the caller for another reason
- *
- * - support both spin_lock/rwlock for bucket:
- *   overhead of spinlock contention is lower than read/write
- *   contention of rwlock, so using spinlock to serialize operations on
- *   bucket is more reasonable for those frequently changed hash tables
- *
- * - support one-single lock mode:
- *   one lock to protect all hash operations to avoid overhead of
- *   multiple locks if hash table is always small
- *
- * - removed a lot of unnecessary addref & decref on hash element:
- *   addref & decref are atomic operations in many use-cases which
- *   are expensive.
- *
- * - support non-blocking cfs_hash_add() and cfs_hash_findadd():
- *   some lustre use-cases require these functions to be strictly
- *   non-blocking, we need to schedule required rehash on a different
- *   thread on those cases.
- *
- * - safer rehash on large hash table
- *   In old implementation, rehash function will exclusively lock the
- *   hash table and finish rehash in one batch, it's dangerous on SMP
- *   system because rehash millions of elements could take long time.
- *   New implemented rehash can release lock and relax CPU in middle
- *   of rehash, it's safe for another thread to search/change on the
- *   hash table even it's in rehasing.
- *
- * - support two different refcount modes
- *   . hash table has refcount on element
- *   . hash table doesn't change refcount on adding/removing element
- *
- * - support long name hash table (for param-tree)
- *
- * - fix a bug for cfs_hash_rehash_key:
- *   in old implementation, cfs_hash_rehash_key could screw up the
- *   hash-table because @key is overwritten without any protection.
- *   Now we need user to define hs_keycpy for those rehash enabled
- *   hash tables, cfs_hash_rehash_key will overwrite hash-key
- *   inside lock by calling hs_keycpy.
- *
- * - better hash iteration:
- *   Now we support both locked iteration & lockless iteration of hash
- *   table. Also, user can break the iteration by return 1 in callback.
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <linux/seq_file.h>
-
-#if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
-static unsigned int warn_on_depth = 8;
-module_param(warn_on_depth, uint, 0644);
-MODULE_PARM_DESC(warn_on_depth, "warning when hash depth is high.");
-#endif
-
-struct cfs_wi_sched *cfs_sched_rehash;
-
-static inline void
-cfs_hash_nl_lock(union cfs_hash_lock *lock, int exclusive) {}
-
-static inline void
-cfs_hash_nl_unlock(union cfs_hash_lock *lock, int exclusive) {}
-
-static inline void
-cfs_hash_spin_lock(union cfs_hash_lock *lock, int exclusive)
-	__acquires(&lock->spin)
-{
-	spin_lock(&lock->spin);
-}
-
-static inline void
-cfs_hash_spin_unlock(union cfs_hash_lock *lock, int exclusive)
-	__releases(&lock->spin)
-{
-	spin_unlock(&lock->spin);
-}
-
-static inline void
-cfs_hash_rw_lock(union cfs_hash_lock *lock, int exclusive)
-	__acquires(&lock->rw)
-{
-	if (!exclusive)
-		read_lock(&lock->rw);
-	else
-		write_lock(&lock->rw);
-}
-
-static inline void
-cfs_hash_rw_unlock(union cfs_hash_lock *lock, int exclusive)
-	__releases(&lock->rw)
-{
-	if (!exclusive)
-		read_unlock(&lock->rw);
-	else
-		write_unlock(&lock->rw);
-}
-
-/** No lock hash */
-static cfs_hash_lock_ops_t cfs_hash_nl_lops = {
-	.hs_lock	= cfs_hash_nl_lock,
-	.hs_unlock      = cfs_hash_nl_unlock,
-	.hs_bkt_lock    = cfs_hash_nl_lock,
-	.hs_bkt_unlock  = cfs_hash_nl_unlock,
-};
-
-/** no bucket lock, one spinlock to protect everything */
-static cfs_hash_lock_ops_t cfs_hash_nbl_lops = {
-	.hs_lock	= cfs_hash_spin_lock,
-	.hs_unlock      = cfs_hash_spin_unlock,
-	.hs_bkt_lock    = cfs_hash_nl_lock,
-	.hs_bkt_unlock  = cfs_hash_nl_unlock,
-};
-
-/** spin bucket lock, rehash is enabled */
-static cfs_hash_lock_ops_t cfs_hash_bkt_spin_lops = {
-	.hs_lock	= cfs_hash_rw_lock,
-	.hs_unlock      = cfs_hash_rw_unlock,
-	.hs_bkt_lock    = cfs_hash_spin_lock,
-	.hs_bkt_unlock  = cfs_hash_spin_unlock,
-};
-
-/** rw bucket lock, rehash is enabled */
-static cfs_hash_lock_ops_t cfs_hash_bkt_rw_lops = {
-	.hs_lock	= cfs_hash_rw_lock,
-	.hs_unlock      = cfs_hash_rw_unlock,
-	.hs_bkt_lock    = cfs_hash_rw_lock,
-	.hs_bkt_unlock  = cfs_hash_rw_unlock,
-};
-
-/** spin bucket lock, rehash is disabled */
-static cfs_hash_lock_ops_t cfs_hash_nr_bkt_spin_lops = {
-	.hs_lock	= cfs_hash_nl_lock,
-	.hs_unlock      = cfs_hash_nl_unlock,
-	.hs_bkt_lock    = cfs_hash_spin_lock,
-	.hs_bkt_unlock  = cfs_hash_spin_unlock,
-};
-
-/** rw bucket lock, rehash is disabled */
-static cfs_hash_lock_ops_t cfs_hash_nr_bkt_rw_lops = {
-	.hs_lock	= cfs_hash_nl_lock,
-	.hs_unlock      = cfs_hash_nl_unlock,
-	.hs_bkt_lock    = cfs_hash_rw_lock,
-	.hs_bkt_unlock  = cfs_hash_rw_unlock,
-};
-
-static void
-cfs_hash_lock_setup(struct cfs_hash *hs)
-{
-	if (cfs_hash_with_no_lock(hs)) {
-		hs->hs_lops = &cfs_hash_nl_lops;
-
-	} else if (cfs_hash_with_no_bktlock(hs)) {
-		hs->hs_lops = &cfs_hash_nbl_lops;
-		spin_lock_init(&hs->hs_lock.spin);
-
-	} else if (cfs_hash_with_rehash(hs)) {
-		rwlock_init(&hs->hs_lock.rw);
-
-		if (cfs_hash_with_rw_bktlock(hs))
-			hs->hs_lops = &cfs_hash_bkt_rw_lops;
-		else if (cfs_hash_with_spin_bktlock(hs))
-			hs->hs_lops = &cfs_hash_bkt_spin_lops;
-		else
-			LBUG();
-	} else {
-		if (cfs_hash_with_rw_bktlock(hs))
-			hs->hs_lops = &cfs_hash_nr_bkt_rw_lops;
-		else if (cfs_hash_with_spin_bktlock(hs))
-			hs->hs_lops = &cfs_hash_nr_bkt_spin_lops;
-		else
-			LBUG();
-	}
-}
-
-/**
- * Simple hash head without depth tracking
- * new element is always added to head of hlist
- */
-typedef struct {
-	struct hlist_head	hh_head;	/**< entries list */
-} cfs_hash_head_t;
-
-static int
-cfs_hash_hh_hhead_size(struct cfs_hash *hs)
-{
-	return sizeof(cfs_hash_head_t);
-}
-
-static struct hlist_head *
-cfs_hash_hh_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
-{
-	cfs_hash_head_t *head = (cfs_hash_head_t *)&bd->bd_bucket->hsb_head[0];
-
-	return &head[bd->bd_offset].hh_head;
-}
-
-static int
-cfs_hash_hh_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnode)
-{
-	hlist_add_head(hnode, cfs_hash_hh_hhead(hs, bd));
-	return -1; /* unknown depth */
-}
-
-static int
-cfs_hash_hh_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnode)
-{
-	hlist_del_init(hnode);
-	return -1; /* unknown depth */
-}
-
-/**
- * Simple hash head with depth tracking
- * new element is always added to head of hlist
- */
-typedef struct {
-	struct hlist_head	hd_head;	/**< entries list */
-	unsigned int	    hd_depth;       /**< list length */
-} cfs_hash_head_dep_t;
-
-static int
-cfs_hash_hd_hhead_size(struct cfs_hash *hs)
-{
-	return sizeof(cfs_hash_head_dep_t);
-}
-
-static struct hlist_head *
-cfs_hash_hd_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
-{
-	cfs_hash_head_dep_t   *head;
-
-	head = (cfs_hash_head_dep_t *)&bd->bd_bucket->hsb_head[0];
-	return &head[bd->bd_offset].hd_head;
-}
-
-static int
-cfs_hash_hd_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnode)
-{
-	cfs_hash_head_dep_t *hh = container_of(cfs_hash_hd_hhead(hs, bd),
-					       cfs_hash_head_dep_t, hd_head);
-	hlist_add_head(hnode, &hh->hd_head);
-	return ++hh->hd_depth;
-}
-
-static int
-cfs_hash_hd_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnode)
-{
-	cfs_hash_head_dep_t *hh = container_of(cfs_hash_hd_hhead(hs, bd),
-					       cfs_hash_head_dep_t, hd_head);
-	hlist_del_init(hnode);
-	return --hh->hd_depth;
-}
-
-/**
- * double links hash head without depth tracking
- * new element is always added to tail of hlist
- */
-typedef struct {
-	struct hlist_head	dh_head;	/**< entries list */
-	struct hlist_node       *dh_tail;	/**< the last entry */
-} cfs_hash_dhead_t;
-
-static int
-cfs_hash_dh_hhead_size(struct cfs_hash *hs)
-{
-	return sizeof(cfs_hash_dhead_t);
-}
-
-static struct hlist_head *
-cfs_hash_dh_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
-{
-	cfs_hash_dhead_t *head;
-
-	head = (cfs_hash_dhead_t *)&bd->bd_bucket->hsb_head[0];
-	return &head[bd->bd_offset].dh_head;
-}
-
-static int
-cfs_hash_dh_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnode)
-{
-	cfs_hash_dhead_t *dh = container_of(cfs_hash_dh_hhead(hs, bd),
-					    cfs_hash_dhead_t, dh_head);
-
-	if (dh->dh_tail != NULL) /* not empty */
-		hlist_add_behind(hnode, dh->dh_tail);
-	else /* empty list */
-		hlist_add_head(hnode, &dh->dh_head);
-	dh->dh_tail = hnode;
-	return -1; /* unknown depth */
-}
-
-static int
-cfs_hash_dh_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnd)
-{
-	cfs_hash_dhead_t *dh = container_of(cfs_hash_dh_hhead(hs, bd),
-					    cfs_hash_dhead_t, dh_head);
-
-	if (hnd->next == NULL) { /* it's the tail */
-		dh->dh_tail = (hnd->pprev == &dh->dh_head.first) ? NULL :
-			      container_of(hnd->pprev, struct hlist_node, next);
-	}
-	hlist_del_init(hnd);
-	return -1; /* unknown depth */
-}
-
-/**
- * double links hash head with depth tracking
- * new element is always added to tail of hlist
- */
-typedef struct {
-	struct hlist_head	dd_head;	/**< entries list */
-	struct hlist_node       *dd_tail;	/**< the last entry */
-	unsigned int	    dd_depth;       /**< list length */
-} cfs_hash_dhead_dep_t;
-
-static int
-cfs_hash_dd_hhead_size(struct cfs_hash *hs)
-{
-	return sizeof(cfs_hash_dhead_dep_t);
-}
-
-static struct hlist_head *
-cfs_hash_dd_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
-{
-	cfs_hash_dhead_dep_t *head;
-
-	head = (cfs_hash_dhead_dep_t *)&bd->bd_bucket->hsb_head[0];
-	return &head[bd->bd_offset].dd_head;
-}
-
-static int
-cfs_hash_dd_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnode)
-{
-	cfs_hash_dhead_dep_t *dh = container_of(cfs_hash_dd_hhead(hs, bd),
-						cfs_hash_dhead_dep_t, dd_head);
-
-	if (dh->dd_tail != NULL) /* not empty */
-		hlist_add_behind(hnode, dh->dd_tail);
-	else /* empty list */
-		hlist_add_head(hnode, &dh->dd_head);
-	dh->dd_tail = hnode;
-	return ++dh->dd_depth;
-}
-
-static int
-cfs_hash_dd_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		      struct hlist_node *hnd)
-{
-	cfs_hash_dhead_dep_t *dh = container_of(cfs_hash_dd_hhead(hs, bd),
-						cfs_hash_dhead_dep_t, dd_head);
-
-	if (hnd->next == NULL) { /* it's the tail */
-		dh->dd_tail = (hnd->pprev == &dh->dd_head.first) ? NULL :
-			      container_of(hnd->pprev, struct hlist_node, next);
-	}
-	hlist_del_init(hnd);
-	return --dh->dd_depth;
-}
-
-static cfs_hash_hlist_ops_t cfs_hash_hh_hops = {
-	.hop_hhead      = cfs_hash_hh_hhead,
-	.hop_hhead_size = cfs_hash_hh_hhead_size,
-	.hop_hnode_add  = cfs_hash_hh_hnode_add,
-	.hop_hnode_del  = cfs_hash_hh_hnode_del,
-};
-
-static cfs_hash_hlist_ops_t cfs_hash_hd_hops = {
-	.hop_hhead      = cfs_hash_hd_hhead,
-	.hop_hhead_size = cfs_hash_hd_hhead_size,
-	.hop_hnode_add  = cfs_hash_hd_hnode_add,
-	.hop_hnode_del  = cfs_hash_hd_hnode_del,
-};
-
-static cfs_hash_hlist_ops_t cfs_hash_dh_hops = {
-	.hop_hhead      = cfs_hash_dh_hhead,
-	.hop_hhead_size = cfs_hash_dh_hhead_size,
-	.hop_hnode_add  = cfs_hash_dh_hnode_add,
-	.hop_hnode_del  = cfs_hash_dh_hnode_del,
-};
-
-static cfs_hash_hlist_ops_t cfs_hash_dd_hops = {
-	.hop_hhead      = cfs_hash_dd_hhead,
-	.hop_hhead_size = cfs_hash_dd_hhead_size,
-	.hop_hnode_add  = cfs_hash_dd_hnode_add,
-	.hop_hnode_del  = cfs_hash_dd_hnode_del,
-};
-
-static void
-cfs_hash_hlist_setup(struct cfs_hash *hs)
-{
-	if (cfs_hash_with_add_tail(hs)) {
-		hs->hs_hops = cfs_hash_with_depth(hs) ?
-			      &cfs_hash_dd_hops : &cfs_hash_dh_hops;
-	} else {
-		hs->hs_hops = cfs_hash_with_depth(hs) ?
-			      &cfs_hash_hd_hops : &cfs_hash_hh_hops;
-	}
-}
-
-static void
-cfs_hash_bd_from_key(struct cfs_hash *hs, struct cfs_hash_bucket **bkts,
-		     unsigned int bits, const void *key, struct cfs_hash_bd *bd)
-{
-	unsigned int index = cfs_hash_id(hs, key, (1U << bits) - 1);
-
-	LASSERT(bits == hs->hs_cur_bits || bits == hs->hs_rehash_bits);
-
-	bd->bd_bucket = bkts[index & ((1U << (bits - hs->hs_bkt_bits)) - 1)];
-	bd->bd_offset = index >> (bits - hs->hs_bkt_bits);
-}
-
-void
-cfs_hash_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bd)
-{
-	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
-	if (likely(hs->hs_rehash_buckets == NULL)) {
-		cfs_hash_bd_from_key(hs, hs->hs_buckets,
-				     hs->hs_cur_bits, key, bd);
-	} else {
-		LASSERT(hs->hs_rehash_bits != 0);
-		cfs_hash_bd_from_key(hs, hs->hs_rehash_buckets,
-				     hs->hs_rehash_bits, key, bd);
-	}
-}
-EXPORT_SYMBOL(cfs_hash_bd_get);
-
-static inline void
-cfs_hash_bd_dep_record(struct cfs_hash *hs, struct cfs_hash_bd *bd, int dep_cur)
-{
-	if (likely(dep_cur <= bd->bd_bucket->hsb_depmax))
-		return;
-
-	bd->bd_bucket->hsb_depmax = dep_cur;
-# if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
-	if (likely(warn_on_depth == 0 ||
-		   max(warn_on_depth, hs->hs_dep_max) >= dep_cur))
-		return;
-
-	spin_lock(&hs->hs_dep_lock);
-	hs->hs_dep_max  = dep_cur;
-	hs->hs_dep_bkt  = bd->bd_bucket->hsb_index;
-	hs->hs_dep_off  = bd->bd_offset;
-	hs->hs_dep_bits = hs->hs_cur_bits;
-	spin_unlock(&hs->hs_dep_lock);
-
-	cfs_wi_schedule(cfs_sched_rehash, &hs->hs_dep_wi);
-# endif
-}
-
-void
-cfs_hash_bd_add_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		       struct hlist_node *hnode)
-{
-	int		rc;
-
-	rc = hs->hs_hops->hop_hnode_add(hs, bd, hnode);
-	cfs_hash_bd_dep_record(hs, bd, rc);
-	bd->bd_bucket->hsb_version++;
-	if (unlikely(bd->bd_bucket->hsb_version == 0))
-		bd->bd_bucket->hsb_version++;
-	bd->bd_bucket->hsb_count++;
-
-	if (cfs_hash_with_counter(hs))
-		atomic_inc(&hs->hs_count);
-	if (!cfs_hash_with_no_itemref(hs))
-		cfs_hash_get(hs, hnode);
-}
-EXPORT_SYMBOL(cfs_hash_bd_add_locked);
-
-void
-cfs_hash_bd_del_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		       struct hlist_node *hnode)
-{
-	hs->hs_hops->hop_hnode_del(hs, bd, hnode);
-
-	LASSERT(bd->bd_bucket->hsb_count > 0);
-	bd->bd_bucket->hsb_count--;
-	bd->bd_bucket->hsb_version++;
-	if (unlikely(bd->bd_bucket->hsb_version == 0))
-		bd->bd_bucket->hsb_version++;
-
-	if (cfs_hash_with_counter(hs)) {
-		LASSERT(atomic_read(&hs->hs_count) > 0);
-		atomic_dec(&hs->hs_count);
-	}
-	if (!cfs_hash_with_no_itemref(hs))
-		cfs_hash_put_locked(hs, hnode);
-}
-EXPORT_SYMBOL(cfs_hash_bd_del_locked);
-
-void
-cfs_hash_bd_move_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd_old,
-			struct cfs_hash_bd *bd_new, struct hlist_node *hnode)
-{
-	struct cfs_hash_bucket *obkt = bd_old->bd_bucket;
-	struct cfs_hash_bucket *nbkt = bd_new->bd_bucket;
-	int		rc;
-
-	if (cfs_hash_bd_compare(bd_old, bd_new) == 0)
-		return;
-
-	/* use cfs_hash_bd_hnode_add/del, to avoid atomic & refcount ops
-	 * in cfs_hash_bd_del/add_locked */
-	hs->hs_hops->hop_hnode_del(hs, bd_old, hnode);
-	rc = hs->hs_hops->hop_hnode_add(hs, bd_new, hnode);
-	cfs_hash_bd_dep_record(hs, bd_new, rc);
-
-	LASSERT(obkt->hsb_count > 0);
-	obkt->hsb_count--;
-	obkt->hsb_version++;
-	if (unlikely(obkt->hsb_version == 0))
-		obkt->hsb_version++;
-	nbkt->hsb_count++;
-	nbkt->hsb_version++;
-	if (unlikely(nbkt->hsb_version == 0))
-		nbkt->hsb_version++;
-}
-EXPORT_SYMBOL(cfs_hash_bd_move_locked);
-
-enum {
-	/** always set, for sanity (avoid ZERO intent) */
-	CFS_HS_LOOKUP_MASK_FIND     = 1 << 0,
-	/** return entry with a ref */
-	CFS_HS_LOOKUP_MASK_REF      = 1 << 1,
-	/** add entry if not existing */
-	CFS_HS_LOOKUP_MASK_ADD      = 1 << 2,
-	/** delete entry, ignore other masks */
-	CFS_HS_LOOKUP_MASK_DEL      = 1 << 3,
-};
-
-typedef enum cfs_hash_lookup_intent {
-	/** return item w/o refcount */
-	CFS_HS_LOOKUP_IT_PEEK       = CFS_HS_LOOKUP_MASK_FIND,
-	/** return item with refcount */
-	CFS_HS_LOOKUP_IT_FIND       = (CFS_HS_LOOKUP_MASK_FIND |
-				       CFS_HS_LOOKUP_MASK_REF),
-	/** return item w/o refcount if existed, otherwise add */
-	CFS_HS_LOOKUP_IT_ADD	= (CFS_HS_LOOKUP_MASK_FIND |
-				       CFS_HS_LOOKUP_MASK_ADD),
-	/** return item with refcount if existed, otherwise add */
-	CFS_HS_LOOKUP_IT_FINDADD    = (CFS_HS_LOOKUP_IT_FIND |
-				       CFS_HS_LOOKUP_MASK_ADD),
-	/** delete if existed */
-	CFS_HS_LOOKUP_IT_FINDDEL    = (CFS_HS_LOOKUP_MASK_FIND |
-				       CFS_HS_LOOKUP_MASK_DEL)
-} cfs_hash_lookup_intent_t;
-
-static struct hlist_node *
-cfs_hash_bd_lookup_intent(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			  const void *key, struct hlist_node *hnode,
-			  cfs_hash_lookup_intent_t intent)
-
-{
-	struct hlist_head  *hhead = cfs_hash_bd_hhead(hs, bd);
-	struct hlist_node  *ehnode;
-	struct hlist_node  *match;
-	int  intent_add = (intent & CFS_HS_LOOKUP_MASK_ADD) != 0;
-
-	/* with this function, we can avoid a lot of useless refcount ops,
-	 * which are expensive atomic operations most time. */
-	match = intent_add ? NULL : hnode;
-	hlist_for_each(ehnode, hhead) {
-		if (!cfs_hash_keycmp(hs, key, ehnode))
-			continue;
-
-		if (match != NULL && match != ehnode) /* can't match */
-			continue;
-
-		/* match and ... */
-		if ((intent & CFS_HS_LOOKUP_MASK_DEL) != 0) {
-			cfs_hash_bd_del_locked(hs, bd, ehnode);
-			return ehnode;
-		}
-
-		/* caller wants refcount? */
-		if ((intent & CFS_HS_LOOKUP_MASK_REF) != 0)
-			cfs_hash_get(hs, ehnode);
-		return ehnode;
-	}
-	/* no match item */
-	if (!intent_add)
-		return NULL;
-
-	LASSERT(hnode != NULL);
-	cfs_hash_bd_add_locked(hs, bd, hnode);
-	return hnode;
-}
-
-struct hlist_node *
-cfs_hash_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd, const void *key)
-{
-	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
-					 CFS_HS_LOOKUP_IT_FIND);
-}
-EXPORT_SYMBOL(cfs_hash_bd_lookup_locked);
-
-struct hlist_node *
-cfs_hash_bd_peek_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd, const void *key)
-{
-	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
-					 CFS_HS_LOOKUP_IT_PEEK);
-}
-EXPORT_SYMBOL(cfs_hash_bd_peek_locked);
-
-struct hlist_node *
-cfs_hash_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			   const void *key, struct hlist_node *hnode,
-			   int noref)
-{
-	return cfs_hash_bd_lookup_intent(hs, bd, key, hnode,
-					 CFS_HS_LOOKUP_IT_ADD |
-					 (!noref * CFS_HS_LOOKUP_MASK_REF));
-}
-EXPORT_SYMBOL(cfs_hash_bd_findadd_locked);
-
-struct hlist_node *
-cfs_hash_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			   const void *key, struct hlist_node *hnode)
-{
-	/* hnode can be NULL, we find the first item with @key */
-	return cfs_hash_bd_lookup_intent(hs, bd, key, hnode,
-					 CFS_HS_LOOKUP_IT_FINDDEL);
-}
-EXPORT_SYMBOL(cfs_hash_bd_finddel_locked);
-
-static void
-cfs_hash_multi_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds,
-		       unsigned n, int excl)
-{
-	struct cfs_hash_bucket *prev = NULL;
-	int		i;
-
-	/**
-	 * bds must be ascendantly ordered by bd->bd_bucket->hsb_index.
-	 * NB: it's possible that several bds point to the same bucket but
-	 * have different bd::bd_offset, so need take care of deadlock.
-	 */
-	cfs_hash_for_each_bd(bds, n, i) {
-		if (prev == bds[i].bd_bucket)
-			continue;
-
-		LASSERT(prev == NULL ||
-			prev->hsb_index < bds[i].bd_bucket->hsb_index);
-		cfs_hash_bd_lock(hs, &bds[i], excl);
-		prev = bds[i].bd_bucket;
-	}
-}
-
-static void
-cfs_hash_multi_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds,
-			 unsigned n, int excl)
-{
-	struct cfs_hash_bucket *prev = NULL;
-	int		i;
-
-	cfs_hash_for_each_bd(bds, n, i) {
-		if (prev != bds[i].bd_bucket) {
-			cfs_hash_bd_unlock(hs, &bds[i], excl);
-			prev = bds[i].bd_bucket;
-		}
-	}
-}
-
-static struct hlist_node *
-cfs_hash_multi_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
-				unsigned n, const void *key)
-{
-	struct hlist_node  *ehnode;
-	unsigned	   i;
-
-	cfs_hash_for_each_bd(bds, n, i) {
-		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key, NULL,
-						   CFS_HS_LOOKUP_IT_FIND);
-		if (ehnode != NULL)
-			return ehnode;
-	}
-	return NULL;
-}
-
-static struct hlist_node *
-cfs_hash_multi_bd_findadd_locked(struct cfs_hash *hs,
-				 struct cfs_hash_bd *bds, unsigned n, const void *key,
-				 struct hlist_node *hnode, int noref)
-{
-	struct hlist_node  *ehnode;
-	int		intent;
-	unsigned	   i;
-
-	LASSERT(hnode != NULL);
-	intent = CFS_HS_LOOKUP_IT_PEEK | (!noref * CFS_HS_LOOKUP_MASK_REF);
-
-	cfs_hash_for_each_bd(bds, n, i) {
-		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key,
-						   NULL, intent);
-		if (ehnode != NULL)
-			return ehnode;
-	}
-
-	if (i == 1) { /* only one bucket */
-		cfs_hash_bd_add_locked(hs, &bds[0], hnode);
-	} else {
-		struct cfs_hash_bd      mybd;
-
-		cfs_hash_bd_get(hs, key, &mybd);
-		cfs_hash_bd_add_locked(hs, &mybd, hnode);
-	}
-
-	return hnode;
-}
-
-static struct hlist_node *
-cfs_hash_multi_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
-				 unsigned n, const void *key,
-				 struct hlist_node *hnode)
-{
-	struct hlist_node  *ehnode;
-	unsigned	   i;
-
-	cfs_hash_for_each_bd(bds, n, i) {
-		ehnode = cfs_hash_bd_lookup_intent(hs, &bds[i], key, hnode,
-						   CFS_HS_LOOKUP_IT_FINDDEL);
-		if (ehnode != NULL)
-			return ehnode;
-	}
-	return NULL;
-}
-
-static void
-cfs_hash_bd_order(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
-{
-	int     rc;
-
-	if (bd2->bd_bucket == NULL)
-		return;
-
-	if (bd1->bd_bucket == NULL) {
-		*bd1 = *bd2;
-		bd2->bd_bucket = NULL;
-		return;
-	}
-
-	rc = cfs_hash_bd_compare(bd1, bd2);
-	if (rc == 0) {
-		bd2->bd_bucket = NULL;
-
-	} else if (rc > 0) { /* swab bd1 and bd2 */
-		struct cfs_hash_bd tmp;
-
-		tmp = *bd2;
-		*bd2 = *bd1;
-		*bd1 = tmp;
-	}
-}
-
-void
-cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bds)
-{
-	/* NB: caller should hold hs_lock.rw if REHASH is set */
-	cfs_hash_bd_from_key(hs, hs->hs_buckets,
-			     hs->hs_cur_bits, key, &bds[0]);
-	if (likely(hs->hs_rehash_buckets == NULL)) {
-		/* no rehash or not rehashing */
-		bds[1].bd_bucket = NULL;
-		return;
-	}
-
-	LASSERT(hs->hs_rehash_bits != 0);
-	cfs_hash_bd_from_key(hs, hs->hs_rehash_buckets,
-			     hs->hs_rehash_bits, key, &bds[1]);
-
-	cfs_hash_bd_order(&bds[0], &bds[1]);
-}
-EXPORT_SYMBOL(cfs_hash_dual_bd_get);
-
-void
-cfs_hash_dual_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl)
-{
-	cfs_hash_multi_bd_lock(hs, bds, 2, excl);
-}
-EXPORT_SYMBOL(cfs_hash_dual_bd_lock);
-
-void
-cfs_hash_dual_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl)
-{
-	cfs_hash_multi_bd_unlock(hs, bds, 2, excl);
-}
-EXPORT_SYMBOL(cfs_hash_dual_bd_unlock);
-
-struct hlist_node *
-cfs_hash_dual_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
-			       const void *key)
-{
-	return cfs_hash_multi_bd_lookup_locked(hs, bds, 2, key);
-}
-EXPORT_SYMBOL(cfs_hash_dual_bd_lookup_locked);
-
-struct hlist_node *
-cfs_hash_dual_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
-				const void *key, struct hlist_node *hnode,
-				int noref)
-{
-	return cfs_hash_multi_bd_findadd_locked(hs, bds, 2, key,
-						hnode, noref);
-}
-EXPORT_SYMBOL(cfs_hash_dual_bd_findadd_locked);
-
-struct hlist_node *
-cfs_hash_dual_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
-				const void *key, struct hlist_node *hnode)
-{
-	return cfs_hash_multi_bd_finddel_locked(hs, bds, 2, key, hnode);
-}
-EXPORT_SYMBOL(cfs_hash_dual_bd_finddel_locked);
-
-static void
-cfs_hash_buckets_free(struct cfs_hash_bucket **buckets,
-		      int bkt_size, int prev_size, int size)
-{
-	int     i;
-
-	for (i = prev_size; i < size; i++) {
-		if (buckets[i] != NULL)
-			LIBCFS_FREE(buckets[i], bkt_size);
-	}
-
-	LIBCFS_FREE(buckets, sizeof(buckets[0]) * size);
-}
-
-/*
- * Create or grow bucket memory. Return old_buckets if no allocation was
- * needed, the newly allocated buckets if allocation was needed and
- * successful, and NULL on error.
- */
-static struct cfs_hash_bucket **
-cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts,
-			 unsigned int old_size, unsigned int new_size)
-{
-	struct cfs_hash_bucket **new_bkts;
-	int		 i;
-
-	LASSERT(old_size == 0 || old_bkts != NULL);
-
-	if (old_bkts != NULL && old_size == new_size)
-		return old_bkts;
-
-	LIBCFS_ALLOC(new_bkts, sizeof(new_bkts[0]) * new_size);
-	if (new_bkts == NULL)
-		return NULL;
-
-	if (old_bkts != NULL) {
-		memcpy(new_bkts, old_bkts,
-		       min(old_size, new_size) * sizeof(*old_bkts));
-	}
-
-	for (i = old_size; i < new_size; i++) {
-		struct hlist_head *hhead;
-		struct cfs_hash_bd     bd;
-
-		LIBCFS_ALLOC(new_bkts[i], cfs_hash_bkt_size(hs));
-		if (new_bkts[i] == NULL) {
-			cfs_hash_buckets_free(new_bkts, cfs_hash_bkt_size(hs),
-					      old_size, new_size);
-			return NULL;
-		}
-
-		new_bkts[i]->hsb_index   = i;
-		new_bkts[i]->hsb_version = 1;  /* shouldn't be zero */
-		new_bkts[i]->hsb_depmax  = -1; /* unknown */
-		bd.bd_bucket = new_bkts[i];
-		cfs_hash_bd_for_each_hlist(hs, &bd, hhead)
-			INIT_HLIST_HEAD(hhead);
-
-		if (cfs_hash_with_no_lock(hs) ||
-		    cfs_hash_with_no_bktlock(hs))
-			continue;
-
-		if (cfs_hash_with_rw_bktlock(hs))
-			rwlock_init(&new_bkts[i]->hsb_lock.rw);
-		else if (cfs_hash_with_spin_bktlock(hs))
-			spin_lock_init(&new_bkts[i]->hsb_lock.spin);
-		else
-			LBUG(); /* invalid use-case */
-	}
-	return new_bkts;
-}
-
-/**
- * Initialize new libcfs hash, where:
- * @name     - Descriptive hash name
- * @cur_bits - Initial hash table size, in bits
- * @max_bits - Maximum allowed hash table resize, in bits
- * @ops      - Registered hash table operations
- * @flags    - CFS_HASH_REHASH enable synamic hash resizing
- *	   - CFS_HASH_SORT enable chained hash sort
- */
-static int cfs_hash_rehash_worker(cfs_workitem_t *wi);
-
-#if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
-static int cfs_hash_dep_print(cfs_workitem_t *wi)
-{
-	struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_dep_wi);
-	int	 dep;
-	int	 bkt;
-	int	 off;
-	int	 bits;
-
-	spin_lock(&hs->hs_dep_lock);
-	dep  = hs->hs_dep_max;
-	bkt  = hs->hs_dep_bkt;
-	off  = hs->hs_dep_off;
-	bits = hs->hs_dep_bits;
-	spin_unlock(&hs->hs_dep_lock);
-
-	LCONSOLE_WARN("#### HASH %s (bits: %d): max depth %d at bucket %d/%d\n",
-		      hs->hs_name, bits, dep, bkt, off);
-	spin_lock(&hs->hs_dep_lock);
-	hs->hs_dep_bits = 0; /* mark as workitem done */
-	spin_unlock(&hs->hs_dep_lock);
-	return 0;
-}
-
-static void cfs_hash_depth_wi_init(struct cfs_hash *hs)
-{
-	spin_lock_init(&hs->hs_dep_lock);
-	cfs_wi_init(&hs->hs_dep_wi, hs, cfs_hash_dep_print);
-}
-
-static void cfs_hash_depth_wi_cancel(struct cfs_hash *hs)
-{
-	if (cfs_wi_deschedule(cfs_sched_rehash, &hs->hs_dep_wi))
-		return;
-
-	spin_lock(&hs->hs_dep_lock);
-	while (hs->hs_dep_bits != 0) {
-		spin_unlock(&hs->hs_dep_lock);
-		cond_resched();
-		spin_lock(&hs->hs_dep_lock);
-	}
-	spin_unlock(&hs->hs_dep_lock);
-}
-
-#else /* CFS_HASH_DEBUG_LEVEL < CFS_HASH_DEBUG_1 */
-
-static inline void cfs_hash_depth_wi_init(struct cfs_hash *hs) {}
-static inline void cfs_hash_depth_wi_cancel(struct cfs_hash *hs) {}
-
-#endif /* CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1 */
-
-struct cfs_hash *
-cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
-		unsigned bkt_bits, unsigned extra_bytes,
-		unsigned min_theta, unsigned max_theta,
-		cfs_hash_ops_t *ops, unsigned flags)
-{
-	struct cfs_hash *hs;
-	int	 len;
-
-	CLASSERT(CFS_HASH_THETA_BITS < 15);
-
-	LASSERT(name != NULL);
-	LASSERT(ops != NULL);
-	LASSERT(ops->hs_key);
-	LASSERT(ops->hs_hash);
-	LASSERT(ops->hs_object);
-	LASSERT(ops->hs_keycmp);
-	LASSERT(ops->hs_get != NULL);
-	LASSERT(ops->hs_put_locked != NULL);
-
-	if ((flags & CFS_HASH_REHASH) != 0)
-		flags |= CFS_HASH_COUNTER; /* must have counter */
-
-	LASSERT(cur_bits > 0);
-	LASSERT(cur_bits >= bkt_bits);
-	LASSERT(max_bits >= cur_bits && max_bits < 31);
-	LASSERT(ergo((flags & CFS_HASH_REHASH) == 0, cur_bits == max_bits));
-	LASSERT(ergo((flags & CFS_HASH_REHASH) != 0,
-		     (flags & CFS_HASH_NO_LOCK) == 0));
-	LASSERT(ergo((flags & CFS_HASH_REHASH_KEY) != 0,
-		      ops->hs_keycpy != NULL));
-
-	len = (flags & CFS_HASH_BIGNAME) == 0 ?
-	      CFS_HASH_NAME_LEN : CFS_HASH_BIGNAME_LEN;
-	LIBCFS_ALLOC(hs, offsetof(struct cfs_hash, hs_name[len]));
-	if (hs == NULL)
-		return NULL;
-
-	strncpy(hs->hs_name, name, len);
-	hs->hs_name[len - 1] = '\0';
-	hs->hs_flags = flags;
-
-	atomic_set(&hs->hs_refcount, 1);
-	atomic_set(&hs->hs_count, 0);
-
-	cfs_hash_lock_setup(hs);
-	cfs_hash_hlist_setup(hs);
-
-	hs->hs_cur_bits = (__u8)cur_bits;
-	hs->hs_min_bits = (__u8)cur_bits;
-	hs->hs_max_bits = (__u8)max_bits;
-	hs->hs_bkt_bits = (__u8)bkt_bits;
-
-	hs->hs_ops	 = ops;
-	hs->hs_extra_bytes = extra_bytes;
-	hs->hs_rehash_bits = 0;
-	cfs_wi_init(&hs->hs_rehash_wi, hs, cfs_hash_rehash_worker);
-	cfs_hash_depth_wi_init(hs);
-
-	if (cfs_hash_with_rehash(hs))
-		__cfs_hash_set_theta(hs, min_theta, max_theta);
-
-	hs->hs_buckets = cfs_hash_buckets_realloc(hs, NULL, 0,
-						  CFS_HASH_NBKT(hs));
-	if (hs->hs_buckets != NULL)
-		return hs;
-
-	LIBCFS_FREE(hs, offsetof(struct cfs_hash, hs_name[len]));
-	return NULL;
-}
-EXPORT_SYMBOL(cfs_hash_create);
-
-/**
- * Cleanup libcfs hash @hs.
- */
-static void
-cfs_hash_destroy(struct cfs_hash *hs)
-{
-	struct hlist_node     *hnode;
-	struct hlist_node     *pos;
-	struct cfs_hash_bd	 bd;
-	int		   i;
-
-	LASSERT(hs != NULL);
-	LASSERT(!cfs_hash_is_exiting(hs) &&
-		!cfs_hash_is_iterating(hs));
-
-	/**
-	 * prohibit further rehashes, don't need any lock because
-	 * I'm the only (last) one can change it.
-	 */
-	hs->hs_exiting = 1;
-	if (cfs_hash_with_rehash(hs))
-		cfs_hash_rehash_cancel(hs);
-
-	cfs_hash_depth_wi_cancel(hs);
-	/* rehash should be done/canceled */
-	LASSERT(hs->hs_buckets != NULL &&
-		hs->hs_rehash_buckets == NULL);
-
-	cfs_hash_for_each_bucket(hs, &bd, i) {
-		struct hlist_head *hhead;
-
-		LASSERT(bd.bd_bucket != NULL);
-		/* no need to take this lock, just for consistent code */
-		cfs_hash_bd_lock(hs, &bd, 1);
-
-		cfs_hash_bd_for_each_hlist(hs, &bd, hhead) {
-			hlist_for_each_safe(hnode, pos, hhead) {
-				LASSERTF(!cfs_hash_with_assert_empty(hs),
-					 "hash %s bucket %u(%u) is not empty: %u items left\n",
-					 hs->hs_name, bd.bd_bucket->hsb_index,
-					 bd.bd_offset, bd.bd_bucket->hsb_count);
-				/* can't assert key valicate, because we
-				 * can interrupt rehash */
-				cfs_hash_bd_del_locked(hs, &bd, hnode);
-				cfs_hash_exit(hs, hnode);
-			}
-		}
-		LASSERT(bd.bd_bucket->hsb_count == 0);
-		cfs_hash_bd_unlock(hs, &bd, 1);
-		cond_resched();
-	}
-
-	LASSERT(atomic_read(&hs->hs_count) == 0);
-
-	cfs_hash_buckets_free(hs->hs_buckets, cfs_hash_bkt_size(hs),
-			      0, CFS_HASH_NBKT(hs));
-	i = cfs_hash_with_bigname(hs) ?
-	    CFS_HASH_BIGNAME_LEN : CFS_HASH_NAME_LEN;
-	LIBCFS_FREE(hs, offsetof(struct cfs_hash, hs_name[i]));
-}
-
-struct cfs_hash *cfs_hash_getref(struct cfs_hash *hs)
-{
-	if (atomic_inc_not_zero(&hs->hs_refcount))
-		return hs;
-	return NULL;
-}
-EXPORT_SYMBOL(cfs_hash_getref);
-
-void cfs_hash_putref(struct cfs_hash *hs)
-{
-	if (atomic_dec_and_test(&hs->hs_refcount))
-		cfs_hash_destroy(hs);
-}
-EXPORT_SYMBOL(cfs_hash_putref);
-
-static inline int
-cfs_hash_rehash_bits(struct cfs_hash *hs)
-{
-	if (cfs_hash_with_no_lock(hs) ||
-	    !cfs_hash_with_rehash(hs))
-		return -EOPNOTSUPP;
-
-	if (unlikely(cfs_hash_is_exiting(hs)))
-		return -ESRCH;
-
-	if (unlikely(cfs_hash_is_rehashing(hs)))
-		return -EALREADY;
-
-	if (unlikely(cfs_hash_is_iterating(hs)))
-		return -EAGAIN;
-
-	/* XXX: need to handle case with max_theta != 2.0
-	 *      and the case with min_theta != 0.5 */
-	if ((hs->hs_cur_bits < hs->hs_max_bits) &&
-	    (__cfs_hash_theta(hs) > hs->hs_max_theta))
-		return hs->hs_cur_bits + 1;
-
-	if (!cfs_hash_with_shrink(hs))
-		return 0;
-
-	if ((hs->hs_cur_bits > hs->hs_min_bits) &&
-	    (__cfs_hash_theta(hs) < hs->hs_min_theta))
-		return hs->hs_cur_bits - 1;
-
-	return 0;
-}
-
-/**
- * don't allow inline rehash if:
- * - user wants non-blocking change (add/del) on hash table
- * - too many elements
- */
-static inline int
-cfs_hash_rehash_inline(struct cfs_hash *hs)
-{
-	return !cfs_hash_with_nblk_change(hs) &&
-	       atomic_read(&hs->hs_count) < CFS_HASH_LOOP_HOG;
-}
-
-/**
- * Add item @hnode to libcfs hash @hs using @key.  The registered
- * ops->hs_get function will be called when the item is added.
- */
-void
-cfs_hash_add(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
-{
-	struct cfs_hash_bd   bd;
-	int	     bits;
-
-	LASSERT(hlist_unhashed(hnode));
-
-	cfs_hash_lock(hs, 0);
-	cfs_hash_bd_get_and_lock(hs, key, &bd, 1);
-
-	cfs_hash_key_validate(hs, key, hnode);
-	cfs_hash_bd_add_locked(hs, &bd, hnode);
-
-	cfs_hash_bd_unlock(hs, &bd, 1);
-
-	bits = cfs_hash_rehash_bits(hs);
-	cfs_hash_unlock(hs, 0);
-	if (bits > 0)
-		cfs_hash_rehash(hs, cfs_hash_rehash_inline(hs));
-}
-EXPORT_SYMBOL(cfs_hash_add);
-
-static struct hlist_node *
-cfs_hash_find_or_add(struct cfs_hash *hs, const void *key,
-		     struct hlist_node *hnode, int noref)
-{
-	struct hlist_node *ehnode;
-	struct cfs_hash_bd     bds[2];
-	int	       bits = 0;
-
-	LASSERT(hlist_unhashed(hnode));
-
-	cfs_hash_lock(hs, 0);
-	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 1);
-
-	cfs_hash_key_validate(hs, key, hnode);
-	ehnode = cfs_hash_dual_bd_findadd_locked(hs, bds, key,
-						 hnode, noref);
-	cfs_hash_dual_bd_unlock(hs, bds, 1);
-
-	if (ehnode == hnode) /* new item added */
-		bits = cfs_hash_rehash_bits(hs);
-	cfs_hash_unlock(hs, 0);
-	if (bits > 0)
-		cfs_hash_rehash(hs, cfs_hash_rehash_inline(hs));
-
-	return ehnode;
-}
-
-/**
- * Add item @hnode to libcfs hash @hs using @key.  The registered
- * ops->hs_get function will be called if the item was added.
- * Returns 0 on success or -EALREADY on key collisions.
- */
-int
-cfs_hash_add_unique(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
-{
-	return cfs_hash_find_or_add(hs, key, hnode, 1) != hnode ?
-	       -EALREADY : 0;
-}
-EXPORT_SYMBOL(cfs_hash_add_unique);
-
-/**
- * Add item @hnode to libcfs hash @hs using @key.  If this @key
- * already exists in the hash then ops->hs_get will be called on the
- * conflicting entry and that entry will be returned to the caller.
- * Otherwise ops->hs_get is called on the item which was added.
- */
-void *
-cfs_hash_findadd_unique(struct cfs_hash *hs, const void *key,
-			struct hlist_node *hnode)
-{
-	hnode = cfs_hash_find_or_add(hs, key, hnode, 0);
-
-	return cfs_hash_object(hs, hnode);
-}
-EXPORT_SYMBOL(cfs_hash_findadd_unique);
-
-/**
- * Delete item @hnode from the libcfs hash @hs using @key.  The @key
- * is required to ensure the correct hash bucket is locked since there
- * is no direct linkage from the item to the bucket.  The object
- * removed from the hash will be returned and obs->hs_put is called
- * on the removed object.
- */
-void *
-cfs_hash_del(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
-{
-	void	   *obj  = NULL;
-	int	     bits = 0;
-	struct cfs_hash_bd   bds[2];
-
-	cfs_hash_lock(hs, 0);
-	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 1);
-
-	/* NB: do nothing if @hnode is not in hash table */
-	if (hnode == NULL || !hlist_unhashed(hnode)) {
-		if (bds[1].bd_bucket == NULL && hnode != NULL) {
-			cfs_hash_bd_del_locked(hs, &bds[0], hnode);
-		} else {
-			hnode = cfs_hash_dual_bd_finddel_locked(hs, bds,
-								key, hnode);
-		}
-	}
-
-	if (hnode != NULL) {
-		obj  = cfs_hash_object(hs, hnode);
-		bits = cfs_hash_rehash_bits(hs);
-	}
-
-	cfs_hash_dual_bd_unlock(hs, bds, 1);
-	cfs_hash_unlock(hs, 0);
-	if (bits > 0)
-		cfs_hash_rehash(hs, cfs_hash_rehash_inline(hs));
-
-	return obj;
-}
-EXPORT_SYMBOL(cfs_hash_del);
-
-/**
- * Delete item given @key in libcfs hash @hs.  The first @key found in
- * the hash will be removed, if the key exists multiple times in the hash
- * @hs this function must be called once per key.  The removed object
- * will be returned and ops->hs_put is called on the removed object.
- */
-void *
-cfs_hash_del_key(struct cfs_hash *hs, const void *key)
-{
-	return cfs_hash_del(hs, key, NULL);
-}
-EXPORT_SYMBOL(cfs_hash_del_key);
-
-/**
- * Lookup an item using @key in the libcfs hash @hs and return it.
- * If the @key is found in the hash hs->hs_get() is called and the
- * matching objects is returned.  It is the callers responsibility
- * to call the counterpart ops->hs_put using the cfs_hash_put() macro
- * when when finished with the object.  If the @key was not found
- * in the hash @hs NULL is returned.
- */
-void *
-cfs_hash_lookup(struct cfs_hash *hs, const void *key)
-{
-	void		 *obj = NULL;
-	struct hlist_node     *hnode;
-	struct cfs_hash_bd	 bds[2];
-
-	cfs_hash_lock(hs, 0);
-	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 0);
-
-	hnode = cfs_hash_dual_bd_lookup_locked(hs, bds, key);
-	if (hnode != NULL)
-		obj = cfs_hash_object(hs, hnode);
-
-	cfs_hash_dual_bd_unlock(hs, bds, 0);
-	cfs_hash_unlock(hs, 0);
-
-	return obj;
-}
-EXPORT_SYMBOL(cfs_hash_lookup);
-
-static void
-cfs_hash_for_each_enter(struct cfs_hash *hs) {
-	LASSERT(!cfs_hash_is_exiting(hs));
-
-	if (!cfs_hash_with_rehash(hs))
-		return;
-	/*
-	 * NB: it's race on cfs_has_t::hs_iterating, but doesn't matter
-	 * because it's just an unreliable signal to rehash-thread,
-	 * rehash-thread will try to finish rehash ASAP when seeing this.
-	 */
-	hs->hs_iterating = 1;
-
-	cfs_hash_lock(hs, 1);
-	hs->hs_iterators++;
-
-	/* NB: iteration is mostly called by service thread,
-	 * we tend to cancel pending rehash-request, instead of
-	 * blocking service thread, we will relaunch rehash request
-	 * after iteration */
-	if (cfs_hash_is_rehashing(hs))
-		cfs_hash_rehash_cancel_locked(hs);
-	cfs_hash_unlock(hs, 1);
-}
-
-static void
-cfs_hash_for_each_exit(struct cfs_hash *hs) {
-	int remained;
-	int bits;
-
-	if (!cfs_hash_with_rehash(hs))
-		return;
-	cfs_hash_lock(hs, 1);
-	remained = --hs->hs_iterators;
-	bits = cfs_hash_rehash_bits(hs);
-	cfs_hash_unlock(hs, 1);
-	/* NB: it's race on cfs_has_t::hs_iterating, see above */
-	if (remained == 0)
-		hs->hs_iterating = 0;
-	if (bits > 0) {
-		cfs_hash_rehash(hs, atomic_read(&hs->hs_count) <
-				    CFS_HASH_LOOP_HOG);
-	}
-}
-
-/**
- * For each item in the libcfs hash @hs call the passed callback @func
- * and pass to it as an argument each hash item and the private @data.
- *
- * a) the function may sleep!
- * b) during the callback:
- *    . the bucket lock is held so the callback must never sleep.
- *    . if @removal_safe is true, use can remove current item by
- *      cfs_hash_bd_del_locked
- */
-static __u64
-cfs_hash_for_each_tight(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
-			void *data, int remove_safe) {
-	struct hlist_node     *hnode;
-	struct hlist_node     *pos;
-	struct cfs_hash_bd	 bd;
-	__u64		 count = 0;
-	int		   excl  = !!remove_safe;
-	int		   loop  = 0;
-	int		   i;
-
-	cfs_hash_for_each_enter(hs);
-
-	cfs_hash_lock(hs, 0);
-	LASSERT(!cfs_hash_is_rehashing(hs));
-
-	cfs_hash_for_each_bucket(hs, &bd, i) {
-		struct hlist_head *hhead;
-
-		cfs_hash_bd_lock(hs, &bd, excl);
-		if (func == NULL) { /* only glimpse size */
-			count += bd.bd_bucket->hsb_count;
-			cfs_hash_bd_unlock(hs, &bd, excl);
-			continue;
-		}
-
-		cfs_hash_bd_for_each_hlist(hs, &bd, hhead) {
-			hlist_for_each_safe(hnode, pos, hhead) {
-				cfs_hash_bucket_validate(hs, &bd, hnode);
-				count++;
-				loop++;
-				if (func(hs, &bd, hnode, data)) {
-					cfs_hash_bd_unlock(hs, &bd, excl);
-					goto out;
-				}
-			}
-		}
-		cfs_hash_bd_unlock(hs, &bd, excl);
-		if (loop < CFS_HASH_LOOP_HOG)
-			continue;
-		loop = 0;
-		cfs_hash_unlock(hs, 0);
-		cond_resched();
-		cfs_hash_lock(hs, 0);
-	}
- out:
-	cfs_hash_unlock(hs, 0);
-
-	cfs_hash_for_each_exit(hs);
-	return count;
-}
-
-typedef struct {
-	cfs_hash_cond_opt_cb_t  func;
-	void		   *arg;
-} cfs_hash_cond_arg_t;
-
-static int
-cfs_hash_cond_del_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			 struct hlist_node *hnode, void *data)
-{
-	cfs_hash_cond_arg_t *cond = data;
-
-	if (cond->func(cfs_hash_object(hs, hnode), cond->arg))
-		cfs_hash_bd_del_locked(hs, bd, hnode);
-	return 0;
-}
-
-/**
- * Delete item from the libcfs hash @hs when @func return true.
- * The write lock being hold during loop for each bucket to avoid
- * any object be reference.
- */
-void
-cfs_hash_cond_del(struct cfs_hash *hs, cfs_hash_cond_opt_cb_t func, void *data)
-{
-	cfs_hash_cond_arg_t arg = {
-		.func   = func,
-		.arg    = data,
-	};
-
-	cfs_hash_for_each_tight(hs, cfs_hash_cond_del_locked, &arg, 1);
-}
-EXPORT_SYMBOL(cfs_hash_cond_del);
-
-void
-cfs_hash_for_each(struct cfs_hash *hs,
-		  cfs_hash_for_each_cb_t func, void *data)
-{
-	cfs_hash_for_each_tight(hs, func, data, 0);
-}
-EXPORT_SYMBOL(cfs_hash_for_each);
-
-void
-cfs_hash_for_each_safe(struct cfs_hash *hs,
-		       cfs_hash_for_each_cb_t func, void *data) {
-	cfs_hash_for_each_tight(hs, func, data, 1);
-}
-EXPORT_SYMBOL(cfs_hash_for_each_safe);
-
-static int
-cfs_hash_peek(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-	      struct hlist_node *hnode, void *data)
-{
-	*(int *)data = 0;
-	return 1; /* return 1 to break the loop */
-}
-
-int
-cfs_hash_is_empty(struct cfs_hash *hs)
-{
-	int empty = 1;
-
-	cfs_hash_for_each_tight(hs, cfs_hash_peek, &empty, 0);
-	return empty;
-}
-EXPORT_SYMBOL(cfs_hash_is_empty);
-
-__u64
-cfs_hash_size_get(struct cfs_hash *hs)
-{
-	return cfs_hash_with_counter(hs) ?
-	       atomic_read(&hs->hs_count) :
-	       cfs_hash_for_each_tight(hs, NULL, NULL, 0);
-}
-EXPORT_SYMBOL(cfs_hash_size_get);
-
-/*
- * cfs_hash_for_each_relax:
- * Iterate the hash table and call @func on each item without
- * any lock. This function can't guarantee to finish iteration
- * if these features are enabled:
- *
- *  a. if rehash_key is enabled, an item can be moved from
- *     one bucket to another bucket
- *  b. user can remove non-zero-ref item from hash-table,
- *     so the item can be removed from hash-table, even worse,
- *     it's possible that user changed key and insert to another
- *     hash bucket.
- * there's no way for us to finish iteration correctly on previous
- * two cases, so iteration has to be stopped on change.
- */
-static int
-cfs_hash_for_each_relax(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
-			void *data) {
-	struct hlist_node *hnode;
-	struct hlist_node *tmp;
-	struct cfs_hash_bd     bd;
-	__u32	     version;
-	int	       count = 0;
-	int	       stop_on_change;
-	int	       rc;
-	int	       i;
-
-	stop_on_change = cfs_hash_with_rehash_key(hs) ||
-			 !cfs_hash_with_no_itemref(hs) ||
-			 hs->hs_ops->hs_put_locked == NULL;
-	cfs_hash_lock(hs, 0);
-	LASSERT(!cfs_hash_is_rehashing(hs));
-
-	cfs_hash_for_each_bucket(hs, &bd, i) {
-		struct hlist_head *hhead;
-
-		cfs_hash_bd_lock(hs, &bd, 0);
-		version = cfs_hash_bd_version_get(&bd);
-
-		cfs_hash_bd_for_each_hlist(hs, &bd, hhead) {
-			for (hnode = hhead->first; hnode != NULL;) {
-				cfs_hash_bucket_validate(hs, &bd, hnode);
-				cfs_hash_get(hs, hnode);
-				cfs_hash_bd_unlock(hs, &bd, 0);
-				cfs_hash_unlock(hs, 0);
-
-				rc = func(hs, &bd, hnode, data);
-				if (stop_on_change)
-					cfs_hash_put(hs, hnode);
-				cond_resched();
-				count++;
-
-				cfs_hash_lock(hs, 0);
-				cfs_hash_bd_lock(hs, &bd, 0);
-				if (!stop_on_change) {
-					tmp = hnode->next;
-					cfs_hash_put_locked(hs, hnode);
-					hnode = tmp;
-				} else { /* bucket changed? */
-					if (version !=
-					    cfs_hash_bd_version_get(&bd))
-						break;
-					/* safe to continue because no change */
-					hnode = hnode->next;
-				}
-				if (rc) /* callback wants to break iteration */
-					break;
-			}
-		}
-		cfs_hash_bd_unlock(hs, &bd, 0);
-	}
-	cfs_hash_unlock(hs, 0);
-
-	return count;
-}
-
-int
-cfs_hash_for_each_nolock(struct cfs_hash *hs,
-			 cfs_hash_for_each_cb_t func, void *data) {
-	if (cfs_hash_with_no_lock(hs) ||
-	    cfs_hash_with_rehash_key(hs) ||
-	    !cfs_hash_with_no_itemref(hs))
-		return -EOPNOTSUPP;
-
-	if (hs->hs_ops->hs_get == NULL ||
-	    (hs->hs_ops->hs_put == NULL &&
-	     hs->hs_ops->hs_put_locked == NULL))
-		return -EOPNOTSUPP;
-
-	cfs_hash_for_each_enter(hs);
-	cfs_hash_for_each_relax(hs, func, data);
-	cfs_hash_for_each_exit(hs);
-
-	return 0;
-}
-EXPORT_SYMBOL(cfs_hash_for_each_nolock);
-
-/**
- * For each hash bucket in the libcfs hash @hs call the passed callback
- * @func until all the hash buckets are empty.  The passed callback @func
- * or the previously registered callback hs->hs_put must remove the item
- * from the hash.  You may either use the cfs_hash_del() or hlist_del()
- * functions.  No rwlocks will be held during the callback @func it is
- * safe to sleep if needed.  This function will not terminate until the
- * hash is empty.  Note it is still possible to concurrently add new
- * items in to the hash.  It is the callers responsibility to ensure
- * the required locking is in place to prevent concurrent insertions.
- */
-int
-cfs_hash_for_each_empty(struct cfs_hash *hs,
-			cfs_hash_for_each_cb_t func, void *data) {
-	unsigned  i = 0;
-
-	if (cfs_hash_with_no_lock(hs))
-		return -EOPNOTSUPP;
-
-	if (hs->hs_ops->hs_get == NULL ||
-	    (hs->hs_ops->hs_put == NULL &&
-	     hs->hs_ops->hs_put_locked == NULL))
-		return -EOPNOTSUPP;
-
-	cfs_hash_for_each_enter(hs);
-	while (cfs_hash_for_each_relax(hs, func, data)) {
-		CDEBUG(D_INFO, "Try to empty hash: %s, loop: %u\n",
-		       hs->hs_name, i++);
-	}
-	cfs_hash_for_each_exit(hs);
-	return 0;
-}
-EXPORT_SYMBOL(cfs_hash_for_each_empty);
-
-void
-cfs_hash_hlist_for_each(struct cfs_hash *hs, unsigned hindex,
-			cfs_hash_for_each_cb_t func, void *data)
-{
-	struct hlist_head   *hhead;
-	struct hlist_node   *hnode;
-	struct cfs_hash_bd       bd;
-
-	cfs_hash_for_each_enter(hs);
-	cfs_hash_lock(hs, 0);
-	if (hindex >= CFS_HASH_NHLIST(hs))
-		goto out;
-
-	cfs_hash_bd_index_set(hs, hindex, &bd);
-
-	cfs_hash_bd_lock(hs, &bd, 0);
-	hhead = cfs_hash_bd_hhead(hs, &bd);
-	hlist_for_each(hnode, hhead) {
-		if (func(hs, &bd, hnode, data))
-			break;
-	}
-	cfs_hash_bd_unlock(hs, &bd, 0);
- out:
-	cfs_hash_unlock(hs, 0);
-	cfs_hash_for_each_exit(hs);
-}
-
-EXPORT_SYMBOL(cfs_hash_hlist_for_each);
-
-/*
- * For each item in the libcfs hash @hs which matches the @key call
- * the passed callback @func and pass to it as an argument each hash
- * item and the private @data. During the callback the bucket lock
- * is held so the callback must never sleep.
-   */
-void
-cfs_hash_for_each_key(struct cfs_hash *hs, const void *key,
-		      cfs_hash_for_each_cb_t func, void *data) {
-	struct hlist_node   *hnode;
-	struct cfs_hash_bd       bds[2];
-	unsigned	    i;
-
-	cfs_hash_lock(hs, 0);
-
-	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 0);
-
-	cfs_hash_for_each_bd(bds, 2, i) {
-		struct hlist_head *hlist = cfs_hash_bd_hhead(hs, &bds[i]);
-
-		hlist_for_each(hnode, hlist) {
-			cfs_hash_bucket_validate(hs, &bds[i], hnode);
-
-			if (cfs_hash_keycmp(hs, key, hnode)) {
-				if (func(hs, &bds[i], hnode, data))
-					break;
-			}
-		}
-	}
-
-	cfs_hash_dual_bd_unlock(hs, bds, 0);
-	cfs_hash_unlock(hs, 0);
-}
-EXPORT_SYMBOL(cfs_hash_for_each_key);
-
-/**
- * Rehash the libcfs hash @hs to the given @bits.  This can be used
- * to grow the hash size when excessive chaining is detected, or to
- * shrink the hash when it is larger than needed.  When the CFS_HASH_REHASH
- * flag is set in @hs the libcfs hash may be dynamically rehashed
- * during addition or removal if the hash's theta value exceeds
- * either the hs->hs_min_theta or hs->max_theta values.  By default
- * these values are tuned to keep the chained hash depth small, and
- * this approach assumes a reasonably uniform hashing function.  The
- * theta thresholds for @hs are tunable via cfs_hash_set_theta().
- */
-void
-cfs_hash_rehash_cancel_locked(struct cfs_hash *hs)
-{
-	int     i;
-
-	/* need hold cfs_hash_lock(hs, 1) */
-	LASSERT(cfs_hash_with_rehash(hs) &&
-		!cfs_hash_with_no_lock(hs));
-
-	if (!cfs_hash_is_rehashing(hs))
-		return;
-
-	if (cfs_wi_deschedule(cfs_sched_rehash, &hs->hs_rehash_wi)) {
-		hs->hs_rehash_bits = 0;
-		return;
-	}
-
-	for (i = 2; cfs_hash_is_rehashing(hs); i++) {
-		cfs_hash_unlock(hs, 1);
-		/* raise console warning while waiting too long */
-		CDEBUG(IS_PO2(i >> 3) ? D_WARNING : D_INFO,
-		       "hash %s is still rehashing, rescheded %d\n",
-		       hs->hs_name, i - 1);
-		cond_resched();
-		cfs_hash_lock(hs, 1);
-	}
-}
-EXPORT_SYMBOL(cfs_hash_rehash_cancel_locked);
-
-void
-cfs_hash_rehash_cancel(struct cfs_hash *hs)
-{
-	cfs_hash_lock(hs, 1);
-	cfs_hash_rehash_cancel_locked(hs);
-	cfs_hash_unlock(hs, 1);
-}
-EXPORT_SYMBOL(cfs_hash_rehash_cancel);
-
-int
-cfs_hash_rehash(struct cfs_hash *hs, int do_rehash)
-{
-	int     rc;
-
-	LASSERT(cfs_hash_with_rehash(hs) && !cfs_hash_with_no_lock(hs));
-
-	cfs_hash_lock(hs, 1);
-
-	rc = cfs_hash_rehash_bits(hs);
-	if (rc <= 0) {
-		cfs_hash_unlock(hs, 1);
-		return rc;
-	}
-
-	hs->hs_rehash_bits = rc;
-	if (!do_rehash) {
-		/* launch and return */
-		cfs_wi_schedule(cfs_sched_rehash, &hs->hs_rehash_wi);
-		cfs_hash_unlock(hs, 1);
-		return 0;
-	}
-
-	/* rehash right now */
-	cfs_hash_unlock(hs, 1);
-
-	return cfs_hash_rehash_worker(&hs->hs_rehash_wi);
-}
-EXPORT_SYMBOL(cfs_hash_rehash);
-
-static int
-cfs_hash_rehash_bd(struct cfs_hash *hs, struct cfs_hash_bd *old)
-{
-	struct cfs_hash_bd      new;
-	struct hlist_head  *hhead;
-	struct hlist_node  *hnode;
-	struct hlist_node  *pos;
-	void	      *key;
-	int		c = 0;
-
-	/* hold cfs_hash_lock(hs, 1), so don't need any bucket lock */
-	cfs_hash_bd_for_each_hlist(hs, old, hhead) {
-		hlist_for_each_safe(hnode, pos, hhead) {
-			key = cfs_hash_key(hs, hnode);
-			LASSERT(key != NULL);
-			/* Validate hnode is in the correct bucket. */
-			cfs_hash_bucket_validate(hs, old, hnode);
-			/*
-			 * Delete from old hash bucket; move to new bucket.
-			 * ops->hs_key must be defined.
-			 */
-			cfs_hash_bd_from_key(hs, hs->hs_rehash_buckets,
-					     hs->hs_rehash_bits, key, &new);
-			cfs_hash_bd_move_locked(hs, old, &new, hnode);
-			c++;
-		}
-	}
-
-	return c;
-}
-
-static int
-cfs_hash_rehash_worker(cfs_workitem_t *wi)
-{
-	struct cfs_hash	 *hs = container_of(wi, struct cfs_hash, hs_rehash_wi);
-	struct cfs_hash_bucket **bkts;
-	struct cfs_hash_bd       bd;
-	unsigned int	old_size;
-	unsigned int	new_size;
-	int		 bsize;
-	int		 count = 0;
-	int		 rc = 0;
-	int		 i;
-
-	LASSERT (hs != NULL && cfs_hash_with_rehash(hs));
-
-	cfs_hash_lock(hs, 0);
-	LASSERT(cfs_hash_is_rehashing(hs));
-
-	old_size = CFS_HASH_NBKT(hs);
-	new_size = CFS_HASH_RH_NBKT(hs);
-
-	cfs_hash_unlock(hs, 0);
-
-	/*
-	 * don't need hs::hs_rwlock for hs::hs_buckets,
-	 * because nobody can change bkt-table except me.
-	 */
-	bkts = cfs_hash_buckets_realloc(hs, hs->hs_buckets,
-					old_size, new_size);
-	cfs_hash_lock(hs, 1);
-	if (bkts == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	if (bkts == hs->hs_buckets) {
-		bkts = NULL; /* do nothing */
-		goto out;
-	}
-
-	rc = __cfs_hash_theta(hs);
-	if ((rc >= hs->hs_min_theta) && (rc <= hs->hs_max_theta)) {
-		/* free the new allocated bkt-table */
-		old_size = new_size;
-		new_size = CFS_HASH_NBKT(hs);
-		rc = -EALREADY;
-		goto out;
-	}
-
-	LASSERT(hs->hs_rehash_buckets == NULL);
-	hs->hs_rehash_buckets = bkts;
-
-	rc = 0;
-	cfs_hash_for_each_bucket(hs, &bd, i) {
-		if (cfs_hash_is_exiting(hs)) {
-			rc = -ESRCH;
-			/* someone wants to destroy the hash, abort now */
-			if (old_size < new_size) /* OK to free old bkt-table */
-				break;
-			/* it's shrinking, need free new bkt-table */
-			hs->hs_rehash_buckets = NULL;
-			old_size = new_size;
-			new_size = CFS_HASH_NBKT(hs);
-			goto out;
-		}
-
-		count += cfs_hash_rehash_bd(hs, &bd);
-		if (count < CFS_HASH_LOOP_HOG ||
-		    cfs_hash_is_iterating(hs)) { /* need to finish ASAP */
-			continue;
-		}
-
-		count = 0;
-		cfs_hash_unlock(hs, 1);
-		cond_resched();
-		cfs_hash_lock(hs, 1);
-	}
-
-	hs->hs_rehash_count++;
-
-	bkts = hs->hs_buckets;
-	hs->hs_buckets = hs->hs_rehash_buckets;
-	hs->hs_rehash_buckets = NULL;
-
-	hs->hs_cur_bits = hs->hs_rehash_bits;
- out:
-	hs->hs_rehash_bits = 0;
-	if (rc == -ESRCH) /* never be scheduled again */
-		cfs_wi_exit(cfs_sched_rehash, wi);
-	bsize = cfs_hash_bkt_size(hs);
-	cfs_hash_unlock(hs, 1);
-	/* can't refer to @hs anymore because it could be destroyed */
-	if (bkts != NULL)
-		cfs_hash_buckets_free(bkts, bsize, new_size, old_size);
-	if (rc != 0)
-		CDEBUG(D_INFO, "early quit of rehashing: %d\n", rc);
-	/* return 1 only if cfs_wi_exit is called */
-	return rc == -ESRCH;
-}
-
-/**
- * Rehash the object referenced by @hnode in the libcfs hash @hs.  The
- * @old_key must be provided to locate the objects previous location
- * in the hash, and the @new_key will be used to reinsert the object.
- * Use this function instead of a cfs_hash_add() + cfs_hash_del()
- * combo when it is critical that there is no window in time where the
- * object is missing from the hash.  When an object is being rehashed
- * the registered cfs_hash_get() and cfs_hash_put() functions will
- * not be called.
- */
-void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
-			 void *new_key, struct hlist_node *hnode)
-{
-	struct cfs_hash_bd	bds[3];
-	struct cfs_hash_bd	old_bds[2];
-	struct cfs_hash_bd	new_bd;
-
-	LASSERT(!hlist_unhashed(hnode));
-
-	cfs_hash_lock(hs, 0);
-
-	cfs_hash_dual_bd_get(hs, old_key, old_bds);
-	cfs_hash_bd_get(hs, new_key, &new_bd);
-
-	bds[0] = old_bds[0];
-	bds[1] = old_bds[1];
-	bds[2] = new_bd;
-
-	/* NB: bds[0] and bds[1] are ordered already */
-	cfs_hash_bd_order(&bds[1], &bds[2]);
-	cfs_hash_bd_order(&bds[0], &bds[1]);
-
-	cfs_hash_multi_bd_lock(hs, bds, 3, 1);
-	if (likely(old_bds[1].bd_bucket == NULL)) {
-		cfs_hash_bd_move_locked(hs, &old_bds[0], &new_bd, hnode);
-	} else {
-		cfs_hash_dual_bd_finddel_locked(hs, old_bds, old_key, hnode);
-		cfs_hash_bd_add_locked(hs, &new_bd, hnode);
-	}
-	/* overwrite key inside locks, otherwise may screw up with
-	 * other operations, i.e: rehash */
-	cfs_hash_keycpy(hs, new_key, hnode);
-
-	cfs_hash_multi_bd_unlock(hs, bds, 3, 1);
-	cfs_hash_unlock(hs, 0);
-}
-EXPORT_SYMBOL(cfs_hash_rehash_key);
-
-void cfs_hash_debug_header(struct seq_file *m)
-{
-	seq_printf(m, "%-*s   cur   min   max theta t-min t-max flags rehash   count  maxdep maxdepb distribution\n",
-		   CFS_HASH_BIGNAME_LEN, "name");
-}
-EXPORT_SYMBOL(cfs_hash_debug_header);
-
-static struct cfs_hash_bucket **
-cfs_hash_full_bkts(struct cfs_hash *hs)
-{
-	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
-	if (hs->hs_rehash_buckets == NULL)
-		return hs->hs_buckets;
-
-	LASSERT(hs->hs_rehash_bits != 0);
-	return hs->hs_rehash_bits > hs->hs_cur_bits ?
-	       hs->hs_rehash_buckets : hs->hs_buckets;
-}
-
-static unsigned int
-cfs_hash_full_nbkt(struct cfs_hash *hs)
-{
-	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
-	if (hs->hs_rehash_buckets == NULL)
-		return CFS_HASH_NBKT(hs);
-
-	LASSERT(hs->hs_rehash_bits != 0);
-	return hs->hs_rehash_bits > hs->hs_cur_bits ?
-	       CFS_HASH_RH_NBKT(hs) : CFS_HASH_NBKT(hs);
-}
-
-void cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
-{
-	int		    dist[8] = { 0, };
-	int		    maxdep  = -1;
-	int		    maxdepb = -1;
-	int		    total   = 0;
-	int		    theta;
-	int		    i;
-
-	cfs_hash_lock(hs, 0);
-	theta = __cfs_hash_theta(hs);
-
-	seq_printf(m, "%-*s %5d %5d %5d %d.%03d %d.%03d %d.%03d  0x%02x %6d ",
-		      CFS_HASH_BIGNAME_LEN, hs->hs_name,
-		      1 << hs->hs_cur_bits, 1 << hs->hs_min_bits,
-		      1 << hs->hs_max_bits,
-		      __cfs_hash_theta_int(theta), __cfs_hash_theta_frac(theta),
-		      __cfs_hash_theta_int(hs->hs_min_theta),
-		      __cfs_hash_theta_frac(hs->hs_min_theta),
-		      __cfs_hash_theta_int(hs->hs_max_theta),
-		      __cfs_hash_theta_frac(hs->hs_max_theta),
-		      hs->hs_flags, hs->hs_rehash_count);
-
-	/*
-	 * The distribution is a summary of the chained hash depth in
-	 * each of the libcfs hash buckets.  Each buckets hsb_count is
-	 * divided by the hash theta value and used to generate a
-	 * histogram of the hash distribution.  A uniform hash will
-	 * result in all hash buckets being close to the average thus
-	 * only the first few entries in the histogram will be non-zero.
-	 * If you hash function results in a non-uniform hash the will
-	 * be observable by outlier bucks in the distribution histogram.
-	 *
-	 * Uniform hash distribution:      128/128/0/0/0/0/0/0
-	 * Non-Uniform hash distribution:  128/125/0/0/0/0/2/1
-	 */
-	for (i = 0; i < cfs_hash_full_nbkt(hs); i++) {
-		struct cfs_hash_bd  bd;
-
-		bd.bd_bucket = cfs_hash_full_bkts(hs)[i];
-		cfs_hash_bd_lock(hs, &bd, 0);
-		if (maxdep < bd.bd_bucket->hsb_depmax) {
-			maxdep  = bd.bd_bucket->hsb_depmax;
-			maxdepb = ffz(~maxdep);
-		}
-		total += bd.bd_bucket->hsb_count;
-		dist[min(fls(bd.bd_bucket->hsb_count / max(theta, 1)), 7)]++;
-		cfs_hash_bd_unlock(hs, &bd, 0);
-	}
-
-	seq_printf(m, "%7d %7d %7d ", total, maxdep, maxdepb);
-	for (i = 0; i < 8; i++)
-		seq_printf(m, "%d%c",  dist[i], (i == 7) ? '\n' : '/');
-
-	cfs_hash_unlock(hs, 0);
-}
-EXPORT_SYMBOL(cfs_hash_debug_str);
diff --git a/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c b/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
deleted file mode 100644
index d9b7c6b69db4..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/kernel_user_comm.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Author: Nathan Rutman <nathan.rutman@sun.com>
- *
- * Kernel <-> userspace communication routines.
- * Using pipes for all arches.
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-#define D_KUC D_OTHER
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-/* This is the kernel side (liblustre as well). */
-
-/**
- * libcfs_kkuc_msg_put - send an message from kernel to userspace
- * @param fp to send the message to
- * @param payload Payload data.  First field of payload is always
- *   struct kuc_hdr
- */
-int libcfs_kkuc_msg_put(struct file *filp, void *payload)
-{
-	struct kuc_hdr *kuch = (struct kuc_hdr *)payload;
-	ssize_t count = kuch->kuc_msglen;
-	loff_t offset = 0;
-	mm_segment_t fs;
-	int rc = -ENOSYS;
-
-	if (filp == NULL || IS_ERR(filp))
-		return -EBADF;
-
-	if (kuch->kuc_magic != KUC_MAGIC) {
-		CERROR("KernelComm: bad magic %x\n", kuch->kuc_magic);
-		return -ENOSYS;
-	}
-
-	fs = get_fs();
-	set_fs(KERNEL_DS);
-	while (count > 0) {
-		rc = vfs_write(filp, (void __force __user *)payload,
-			       count, &offset);
-		if (rc < 0)
-			break;
-		count -= rc;
-		payload += rc;
-		rc = 0;
-	}
-	set_fs(fs);
-
-	if (rc < 0)
-		CWARN("message send failed (%d)\n", rc);
-	else
-		CDEBUG(D_KUC, "Sent message rc=%d, fp=%p\n", rc, filp);
-
-	return rc;
-}
-EXPORT_SYMBOL(libcfs_kkuc_msg_put);
-
-/* Broadcast groups are global across all mounted filesystems;
- * i.e. registering for a group on 1 fs will get messages for that
- * group from any fs */
-/** A single group registration has a uid and a file pointer */
-struct kkuc_reg {
-	struct list_head	kr_chain;
-	int		kr_uid;
-	struct file	*kr_fp;
-	__u32		kr_data;
-};
-static struct list_head kkuc_groups[KUC_GRP_MAX+1] = {};
-/* Protect message sending against remove and adds */
-static DECLARE_RWSEM(kg_sem);
-
-/** Add a receiver to a broadcast group
- * @param filp pipe to write into
- * @param uid identifier for this receiver
- * @param group group number
- */
-int libcfs_kkuc_group_add(struct file *filp, int uid, int group, __u32 data)
-{
-	struct kkuc_reg *reg;
-
-	if (group > KUC_GRP_MAX) {
-		CDEBUG(D_WARNING, "Kernelcomm: bad group %d\n", group);
-		return -EINVAL;
-	}
-
-	/* fput in group_rem */
-	if (filp == NULL)
-		return -EBADF;
-
-	/* freed in group_rem */
-	reg = kmalloc(sizeof(*reg), 0);
-	if (reg == NULL)
-		return -ENOMEM;
-
-	reg->kr_fp = filp;
-	reg->kr_uid = uid;
-	reg->kr_data = data;
-
-	down_write(&kg_sem);
-	if (kkuc_groups[group].next == NULL)
-		INIT_LIST_HEAD(&kkuc_groups[group]);
-	list_add(&reg->kr_chain, &kkuc_groups[group]);
-	up_write(&kg_sem);
-
-	CDEBUG(D_KUC, "Added uid=%d fp=%p to group %d\n", uid, filp, group);
-
-	return 0;
-}
-EXPORT_SYMBOL(libcfs_kkuc_group_add);
-
-int libcfs_kkuc_group_rem(int uid, int group)
-{
-	struct kkuc_reg *reg, *next;
-
-	if (kkuc_groups[group].next == NULL)
-		return 0;
-
-	if (uid == 0) {
-		/* Broadcast a shutdown message */
-		struct kuc_hdr lh;
-
-		lh.kuc_magic = KUC_MAGIC;
-		lh.kuc_transport = KUC_TRANSPORT_GENERIC;
-		lh.kuc_msgtype = KUC_MSG_SHUTDOWN;
-		lh.kuc_msglen = sizeof(lh);
-		libcfs_kkuc_group_put(group, &lh);
-	}
-
-	down_write(&kg_sem);
-	list_for_each_entry_safe(reg, next, &kkuc_groups[group], kr_chain) {
-		if ((uid == 0) || (uid == reg->kr_uid)) {
-			list_del(&reg->kr_chain);
-			CDEBUG(D_KUC, "Removed uid=%d fp=%p from group %d\n",
-			       reg->kr_uid, reg->kr_fp, group);
-			if (reg->kr_fp != NULL)
-				fput(reg->kr_fp);
-			kfree(reg);
-		}
-	}
-	up_write(&kg_sem);
-
-	return 0;
-}
-EXPORT_SYMBOL(libcfs_kkuc_group_rem);
-
-int libcfs_kkuc_group_put(int group, void *payload)
-{
-	struct kkuc_reg	*reg;
-	int		 rc = 0;
-	int one_success = 0;
-
-	down_read(&kg_sem);
-	list_for_each_entry(reg, &kkuc_groups[group], kr_chain) {
-		if (reg->kr_fp != NULL) {
-			rc = libcfs_kkuc_msg_put(reg->kr_fp, payload);
-			if (rc == 0)
-				one_success = 1;
-			else if (rc == -EPIPE) {
-				fput(reg->kr_fp);
-				reg->kr_fp = NULL;
-			}
-		}
-	}
-	up_read(&kg_sem);
-
-	/* don't return an error if the message has been delivered
-	 * at least to one agent */
-	if (one_success)
-		rc = 0;
-
-	return rc;
-}
-EXPORT_SYMBOL(libcfs_kkuc_group_put);
-
-/**
- * Calls a callback function for each link of the given kuc group.
- * @param group the group to call the function on.
- * @param cb_func the function to be called.
- * @param cb_arg iextra argument to be passed to the callback function.
- */
-int libcfs_kkuc_group_foreach(int group, libcfs_kkuc_cb_t cb_func,
-			      void *cb_arg)
-{
-	struct kkuc_reg *reg;
-	int rc = 0;
-
-	if (group > KUC_GRP_MAX) {
-		CDEBUG(D_WARNING, "Kernelcomm: bad group %d\n", group);
-		return -EINVAL;
-	}
-
-	/* no link for this group */
-	if (kkuc_groups[group].next == NULL)
-		return 0;
-
-	down_write(&kg_sem);
-	list_for_each_entry(reg, &kkuc_groups[group], kr_chain) {
-		if (reg->kr_fp != NULL)
-			rc = cb_func(reg->kr_data, cb_arg);
-	}
-	up_write(&kg_sem);
-
-	return rc;
-}
-EXPORT_SYMBOL(libcfs_kkuc_group_foreach);
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c b/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c
deleted file mode 100644
index 933525c73da1..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Please see comments in libcfs/include/libcfs/libcfs_cpu.h for introduction
- *
- * Author: liang@whamcloud.com
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-/** Global CPU partition table */
-struct cfs_cpt_table   *cfs_cpt_table __read_mostly;
-EXPORT_SYMBOL(cfs_cpt_table);
-
-#ifndef HAVE_LIBCFS_CPT
-
-#define CFS_CPU_VERSION_MAGIC	   0xbabecafe
-
-struct cfs_cpt_table *
-cfs_cpt_table_alloc(unsigned int ncpt)
-{
-	struct cfs_cpt_table *cptab;
-
-	if (ncpt != 1) {
-		CERROR("Can't support cpu partition number %d\n", ncpt);
-		return NULL;
-	}
-
-	LIBCFS_ALLOC(cptab, sizeof(*cptab));
-	if (cptab != NULL) {
-		cptab->ctb_version = CFS_CPU_VERSION_MAGIC;
-		cptab->ctb_nparts  = ncpt;
-	}
-
-	return cptab;
-}
-EXPORT_SYMBOL(cfs_cpt_table_alloc);
-
-void
-cfs_cpt_table_free(struct cfs_cpt_table *cptab)
-{
-	LASSERT(cptab->ctb_version == CFS_CPU_VERSION_MAGIC);
-
-	LIBCFS_FREE(cptab, sizeof(*cptab));
-}
-EXPORT_SYMBOL(cfs_cpt_table_free);
-
-#ifdef CONFIG_SMP
-int
-cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len)
-{
-	int	rc;
-
-	rc = snprintf(buf, len, "%d\t: %d\n", 0, 0);
-	len -= rc;
-	if (len <= 0)
-		return -EFBIG;
-
-	return rc;
-}
-EXPORT_SYMBOL(cfs_cpt_table_print);
-#endif /* CONFIG_SMP */
-
-int
-cfs_cpt_number(struct cfs_cpt_table *cptab)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_number);
-
-int
-cfs_cpt_weight(struct cfs_cpt_table *cptab, int cpt)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_weight);
-
-int
-cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_online);
-
-int
-cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_set_cpu);
-
-void
-cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
-{
-}
-EXPORT_SYMBOL(cfs_cpt_unset_cpu);
-
-int
-cfs_cpt_set_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_set_cpumask);
-
-void
-cfs_cpt_unset_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
-{
-}
-EXPORT_SYMBOL(cfs_cpt_unset_cpumask);
-
-int
-cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_set_node);
-
-void
-cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node)
-{
-}
-EXPORT_SYMBOL(cfs_cpt_unset_node);
-
-int
-cfs_cpt_set_nodemask(struct cfs_cpt_table *cptab, int cpt, nodemask_t *mask)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_set_nodemask);
-
-void
-cfs_cpt_unset_nodemask(struct cfs_cpt_table *cptab, int cpt, nodemask_t *mask)
-{
-}
-EXPORT_SYMBOL(cfs_cpt_unset_nodemask);
-
-void
-cfs_cpt_clear(struct cfs_cpt_table *cptab, int cpt)
-{
-}
-EXPORT_SYMBOL(cfs_cpt_clear);
-
-int
-cfs_cpt_spread_node(struct cfs_cpt_table *cptab, int cpt)
-{
-	return 0;
-}
-EXPORT_SYMBOL(cfs_cpt_spread_node);
-
-int
-cfs_cpu_ht_nsiblings(int cpu)
-{
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpu_ht_nsiblings);
-
-int
-cfs_cpt_current(struct cfs_cpt_table *cptab, int remap)
-{
-	return 0;
-}
-EXPORT_SYMBOL(cfs_cpt_current);
-
-int
-cfs_cpt_of_cpu(struct cfs_cpt_table *cptab, int cpu)
-{
-	return 0;
-}
-EXPORT_SYMBOL(cfs_cpt_of_cpu);
-
-int
-cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt)
-{
-	return 0;
-}
-EXPORT_SYMBOL(cfs_cpt_bind);
-
-void
-cfs_cpu_fini(void)
-{
-	if (cfs_cpt_table != NULL) {
-		cfs_cpt_table_free(cfs_cpt_table);
-		cfs_cpt_table = NULL;
-	}
-}
-
-int
-cfs_cpu_init(void)
-{
-	cfs_cpt_table = cfs_cpt_table_alloc(1);
-
-	return cfs_cpt_table != NULL ? 0 : -1;
-}
-
-#endif /* HAVE_LIBCFS_CPT */
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c b/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
deleted file mode 100644
index 2c199c7259fe..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_lock.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Author: liang@whamcloud.com
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-
-/** destroy cpu-partition lock, see libcfs_private.h for more detail */
-void
-cfs_percpt_lock_free(struct cfs_percpt_lock *pcl)
-{
-	LASSERT(pcl->pcl_locks != NULL);
-	LASSERT(!pcl->pcl_locked);
-
-	cfs_percpt_free(pcl->pcl_locks);
-	LIBCFS_FREE(pcl, sizeof(*pcl));
-}
-EXPORT_SYMBOL(cfs_percpt_lock_free);
-
-/**
- * create cpu-partition lock, see libcfs_private.h for more detail.
- *
- * cpu-partition lock is designed for large-scale SMP system, so we need to
- * reduce cacheline conflict as possible as we can, that's the
- * reason we always allocate cacheline-aligned memory block.
- */
-struct cfs_percpt_lock *
-cfs_percpt_lock_alloc(struct cfs_cpt_table *cptab)
-{
-	struct cfs_percpt_lock	*pcl;
-	spinlock_t		*lock;
-	int			i;
-
-	/* NB: cptab can be NULL, pcl will be for HW CPUs on that case */
-	LIBCFS_ALLOC(pcl, sizeof(*pcl));
-	if (pcl == NULL)
-		return NULL;
-
-	pcl->pcl_cptab = cptab;
-	pcl->pcl_locks = cfs_percpt_alloc(cptab, sizeof(*lock));
-	if (pcl->pcl_locks == NULL) {
-		LIBCFS_FREE(pcl, sizeof(*pcl));
-		return NULL;
-	}
-
-	cfs_percpt_for_each(lock, i, pcl->pcl_locks)
-		spin_lock_init(lock);
-
-	return pcl;
-}
-EXPORT_SYMBOL(cfs_percpt_lock_alloc);
-
-/**
- * lock a CPU partition
- *
- * \a index != CFS_PERCPT_LOCK_EX
- *     hold private lock indexed by \a index
- *
- * \a index == CFS_PERCPT_LOCK_EX
- *     exclusively lock @pcl and nobody can take private lock
- */
-void
-cfs_percpt_lock(struct cfs_percpt_lock *pcl, int index)
-{
-	int	ncpt = cfs_cpt_number(pcl->pcl_cptab);
-	int	i;
-
-	LASSERT(index >= CFS_PERCPT_LOCK_EX && index < ncpt);
-
-	if (ncpt == 1) {
-		index = 0;
-	} else { /* serialize with exclusive lock */
-		while (pcl->pcl_locked)
-			cpu_relax();
-	}
-
-	if (likely(index != CFS_PERCPT_LOCK_EX)) {
-		spin_lock(pcl->pcl_locks[index]);
-		return;
-	}
-
-	/* exclusive lock request */
-	for (i = 0; i < ncpt; i++) {
-		spin_lock(pcl->pcl_locks[i]);
-		if (i == 0) {
-			LASSERT(!pcl->pcl_locked);
-			/* nobody should take private lock after this
-			 * so I wouldn't starve for too long time */
-			pcl->pcl_locked = 1;
-		}
-	}
-}
-EXPORT_SYMBOL(cfs_percpt_lock);
-
-/** unlock a CPU partition */
-void
-cfs_percpt_unlock(struct cfs_percpt_lock *pcl, int index)
-{
-	int	ncpt = cfs_cpt_number(pcl->pcl_cptab);
-	int	i;
-
-	index = ncpt == 1 ? 0 : index;
-
-	if (likely(index != CFS_PERCPT_LOCK_EX)) {
-		spin_unlock(pcl->pcl_locks[index]);
-		return;
-	}
-
-	for (i = ncpt - 1; i >= 0; i--) {
-		if (i == 0) {
-			LASSERT(pcl->pcl_locked);
-			pcl->pcl_locked = 0;
-		}
-		spin_unlock(pcl->pcl_locks[i]);
-	}
-}
-EXPORT_SYMBOL(cfs_percpt_unlock);
-
-
-/** free cpu-partition refcount */
-void
-cfs_percpt_atomic_free(atomic_t **refs)
-{
-	cfs_percpt_free(refs);
-}
-EXPORT_SYMBOL(cfs_percpt_atomic_free);
-
-/** allocate cpu-partition refcount with initial value @init_val */
-atomic_t **
-cfs_percpt_atomic_alloc(struct cfs_cpt_table *cptab, int init_val)
-{
-	atomic_t	**refs;
-	atomic_t	*ref;
-	int		i;
-
-	refs = cfs_percpt_alloc(cptab, sizeof(*ref));
-	if (refs == NULL)
-		return NULL;
-
-	cfs_percpt_for_each(ref, i, refs)
-		atomic_set(ref, init_val);
-	return refs;
-}
-EXPORT_SYMBOL(cfs_percpt_atomic_alloc);
-
-/** return sum of cpu-partition refs */
-int
-cfs_percpt_atomic_summary(atomic_t **refs)
-{
-	atomic_t	*ref;
-	int		i;
-	int		val = 0;
-
-	cfs_percpt_for_each(ref, i, refs)
-		val += atomic_read(ref);
-
-	return val;
-}
-EXPORT_SYMBOL(cfs_percpt_atomic_summary);
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c b/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
deleted file mode 100644
index 1debdda72e72..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_mem.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Author: liang@whamcloud.com
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-struct cfs_var_array {
-	unsigned int		va_count;	/* # of buffers */
-	unsigned int		va_size;	/* size of each var */
-	struct cfs_cpt_table	*va_cptab;	/* cpu partition table */
-	void			*va_ptrs[0];	/* buffer addresses */
-};
-
-/*
- * free per-cpu data, see more detail in cfs_percpt_free
- */
-void
-cfs_percpt_free(void *vars)
-{
-	struct	cfs_var_array *arr;
-	int	i;
-
-	arr = container_of(vars, struct cfs_var_array, va_ptrs[0]);
-
-	for (i = 0; i < arr->va_count; i++) {
-		if (arr->va_ptrs[i] != NULL)
-			LIBCFS_FREE(arr->va_ptrs[i], arr->va_size);
-	}
-
-	LIBCFS_FREE(arr, offsetof(struct cfs_var_array,
-				  va_ptrs[arr->va_count]));
-}
-EXPORT_SYMBOL(cfs_percpt_free);
-
-/*
- * allocate per cpu-partition variables, returned value is an array of pointers,
- * variable can be indexed by CPU partition ID, i.e:
- *
- *	arr = cfs_percpt_alloc(cfs_cpu_pt, size);
- *	then caller can access memory block for CPU 0 by arr[0],
- *	memory block for CPU 1 by arr[1]...
- *	memory block for CPU N by arr[N]...
- *
- * cacheline aligned.
- */
-void *
-cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size)
-{
-	struct cfs_var_array	*arr;
-	int			count;
-	int			i;
-
-	count = cfs_cpt_number(cptab);
-
-	LIBCFS_ALLOC(arr, offsetof(struct cfs_var_array, va_ptrs[count]));
-	if (arr == NULL)
-		return NULL;
-
-	arr->va_size	= size = L1_CACHE_ALIGN(size);
-	arr->va_count	= count;
-	arr->va_cptab	= cptab;
-
-	for (i = 0; i < count; i++) {
-		LIBCFS_CPT_ALLOC(arr->va_ptrs[i], cptab, i, size);
-		if (arr->va_ptrs[i] == NULL) {
-			cfs_percpt_free((void *)&arr->va_ptrs[0]);
-			return NULL;
-		}
-	}
-
-	return (void *)&arr->va_ptrs[0];
-}
-EXPORT_SYMBOL(cfs_percpt_alloc);
-
-/*
- * return number of CPUs (or number of elements in per-cpu data)
- * according to cptab of @vars
- */
-int
-cfs_percpt_number(void *vars)
-{
-	struct cfs_var_array *arr;
-
-	arr = container_of(vars, struct cfs_var_array, va_ptrs[0]);
-
-	return arr->va_count;
-}
-EXPORT_SYMBOL(cfs_percpt_number);
-
-/*
- * return memory block shadowed from current CPU
- */
-void *
-cfs_percpt_current(void *vars)
-{
-	struct cfs_var_array *arr;
-	int    cpt;
-
-	arr = container_of(vars, struct cfs_var_array, va_ptrs[0]);
-	cpt = cfs_cpt_current(arr->va_cptab, 0);
-	if (cpt < 0)
-		return NULL;
-
-	return arr->va_ptrs[cpt];
-}
-EXPORT_SYMBOL(cfs_percpt_current);
-
-void *
-cfs_percpt_index(void *vars, int idx)
-{
-	struct cfs_var_array *arr;
-
-	arr = container_of(vars, struct cfs_var_array, va_ptrs[0]);
-
-	LASSERT(idx >= 0 && idx < arr->va_count);
-	return arr->va_ptrs[idx];
-}
-EXPORT_SYMBOL(cfs_percpt_index);
-
-/*
- * free variable array, see more detail in cfs_array_alloc
- */
-void
-cfs_array_free(void *vars)
-{
-	struct cfs_var_array	*arr;
-	int			i;
-
-	arr = container_of(vars, struct cfs_var_array, va_ptrs[0]);
-
-	for (i = 0; i < arr->va_count; i++) {
-		if (arr->va_ptrs[i] == NULL)
-			continue;
-
-		LIBCFS_FREE(arr->va_ptrs[i], arr->va_size);
-	}
-	LIBCFS_FREE(arr, offsetof(struct cfs_var_array,
-				  va_ptrs[arr->va_count]));
-}
-EXPORT_SYMBOL(cfs_array_free);
-
-/*
- * allocate a variable array, returned value is an array of pointers.
- * Caller can specify length of array by @count, @size is size of each
- * memory block in array.
- */
-void *
-cfs_array_alloc(int count, unsigned int size)
-{
-	struct cfs_var_array	*arr;
-	int			i;
-
-	LIBCFS_ALLOC(arr, offsetof(struct cfs_var_array, va_ptrs[count]));
-	if (arr == NULL)
-		return NULL;
-
-	arr->va_count	= count;
-	arr->va_size	= size;
-
-	for (i = 0; i < count; i++) {
-		LIBCFS_ALLOC(arr->va_ptrs[i], size);
-
-		if (arr->va_ptrs[i] == NULL) {
-			cfs_array_free((void *)&arr->va_ptrs[0]);
-			return NULL;
-		}
-	}
-
-	return (void *)&arr->va_ptrs[0];
-}
-EXPORT_SYMBOL(cfs_array_alloc);
diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_string.c b/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
deleted file mode 100644
index efe5e667a2e5..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/libcfs_string.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * String manipulation functions.
- *
- * libcfs/libcfs/libcfs_string.c
- *
- * Author: Nathan Rutman <nathan.rutman@sun.com>
- */
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-/* Convert a text string to a bitmask */
-int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
-		 int *oldmask, int minmask, int allmask)
-{
-	const char *debugstr;
-	char op = '\0';
-	int newmask = minmask, i, len, found = 0;
-
-	/* <str> must be a list of tokens separated by whitespace
-	 * and optionally an operator ('+' or '-').  If an operator
-	 * appears first in <str>, '*oldmask' is used as the starting point
-	 * (relative), otherwise minmask is used (absolute).  An operator
-	 * applies to all following tokens up to the next operator. */
-	while (*str != '\0') {
-		while (isspace(*str))
-			str++;
-		if (*str == '\0')
-			break;
-		if (*str == '+' || *str == '-') {
-			op = *str++;
-			if (!found)
-				/* only if first token is relative */
-				newmask = *oldmask;
-			while (isspace(*str))
-				str++;
-			if (*str == '\0')  /* trailing op */
-				return -EINVAL;
-		}
-
-		/* find token length */
-		len = 0;
-		while (str[len] != '\0' && !isspace(str[len]) &&
-		       str[len] != '+' && str[len] != '-')
-			len++;
-
-		/* match token */
-		found = 0;
-		for (i = 0; i < 32; i++) {
-			debugstr = bit2str(i);
-			if (debugstr != NULL &&
-			    strlen(debugstr) == len &&
-			    strncasecmp(str, debugstr, len) == 0) {
-				if (op == '-')
-					newmask &= ~(1 << i);
-				else
-					newmask |= (1 << i);
-				found = 1;
-				break;
-			}
-		}
-		if (!found && len == 3 &&
-		    (strncasecmp(str, "ALL", len) == 0)) {
-			if (op == '-')
-				newmask = minmask;
-			else
-				newmask = allmask;
-			found = 1;
-		}
-		if (!found) {
-			CWARN("unknown mask '%.*s'.\n"
-			      "mask usage: [+|-]<all|type> ...\n", len, str);
-			return -EINVAL;
-		}
-		str += len;
-	}
-
-	*oldmask = newmask;
-	return 0;
-}
-
-/* get the first string out of @str */
-char *cfs_firststr(char *str, size_t size)
-{
-	size_t i = 0;
-	char  *end;
-
-	/* trim leading spaces */
-	while (i < size && *str && isspace(*str)) {
-		++i;
-		++str;
-	}
-
-	/* string with all spaces */
-	if (*str == '\0')
-		goto out;
-
-	end = str;
-	while (i < size && *end != '\0' && !isspace(*end)) {
-		++i;
-		++end;
-	}
-
-	*end = '\0';
-out:
-	return str;
-}
-EXPORT_SYMBOL(cfs_firststr);
-
-char *
-cfs_trimwhite(char *str)
-{
-	char *end;
-
-	while (isspace(*str))
-		str++;
-
-	end = str + strlen(str);
-	while (end > str) {
-		if (!isspace(end[-1]))
-			break;
-		end--;
-	}
-
-	*end = 0;
-	return str;
-}
-EXPORT_SYMBOL(cfs_trimwhite);
-
-/**
- * Extracts tokens from strings.
- *
- * Looks for \a delim in string \a next, sets \a res to point to
- * substring before the delimiter, sets \a next right after the found
- * delimiter.
- *
- * \retval 1 if \a res points to a string of non-whitespace characters
- * \retval 0 otherwise
- */
-int
-cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res)
-{
-	char *end;
-
-	if (next->ls_str == NULL)
-		return 0;
-
-	/* skip leading white spaces */
-	while (next->ls_len) {
-		if (!isspace(*next->ls_str))
-			break;
-		next->ls_str++;
-		next->ls_len--;
-	}
-
-	if (next->ls_len == 0) /* whitespaces only */
-		return 0;
-
-	if (*next->ls_str == delim) {
-		/* first non-writespace is the delimiter */
-		return 0;
-	}
-
-	res->ls_str = next->ls_str;
-	end = memchr(next->ls_str, delim, next->ls_len);
-	if (end == NULL) {
-		/* there is no the delimeter in the string */
-		end = next->ls_str + next->ls_len;
-		next->ls_str = NULL;
-	} else {
-		next->ls_str = end + 1;
-		next->ls_len -= (end - res->ls_str + 1);
-	}
-
-	/* skip ending whitespaces */
-	while (--end != res->ls_str) {
-		if (!isspace(*end))
-			break;
-	}
-
-	res->ls_len = end - res->ls_str + 1;
-	return 1;
-}
-
-/**
- * Converts string to integer.
- *
- * Accepts decimal and hexadecimal number recordings.
- *
- * \retval 1 if first \a nob chars of \a str convert to decimal or
- * hexadecimal integer in the range [\a min, \a max]
- * \retval 0 otherwise
- */
-int
-cfs_str2num_check(char *str, int nob, unsigned *num,
-		  unsigned min, unsigned max)
-{
-	char	*endp;
-
-	str = cfs_trimwhite(str);
-	*num = simple_strtoul(str, &endp, 0);
-	if (endp == str)
-		return 0;
-
-	for (; endp < str + nob; endp++) {
-		if (!isspace(*endp))
-			return 0;
-	}
-
-	return (*num >= min && *num <= max);
-}
-
-/**
- * Parses \<range_expr\> token of the syntax. If \a bracketed is false,
- * \a src should only have a single token which can be \<number\> or  \*
- *
- * \retval pointer to allocated range_expr and initialized
- * range_expr::re_lo, range_expr::re_hi and range_expr:re_stride if \a
- `* src parses to
- * \<number\> |
- * \<number\> '-' \<number\> |
- * \<number\> '-' \<number\> '/' \<number\>
- * \retval 0 will be returned if it can be parsed, otherwise -EINVAL or
- * -ENOMEM will be returned.
- */
-static int
-cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
-		     int bracketed, struct cfs_range_expr **expr)
-{
-	struct cfs_range_expr	*re;
-	struct cfs_lstr		tok;
-
-	LIBCFS_ALLOC(re, sizeof(*re));
-	if (re == NULL)
-		return -ENOMEM;
-
-	if (src->ls_len == 1 && src->ls_str[0] == '*') {
-		re->re_lo = min;
-		re->re_hi = max;
-		re->re_stride = 1;
-		goto out;
-	}
-
-	if (cfs_str2num_check(src->ls_str, src->ls_len,
-			      &re->re_lo, min, max)) {
-		/* <number> is parsed */
-		re->re_hi = re->re_lo;
-		re->re_stride = 1;
-		goto out;
-	}
-
-	if (!bracketed || !cfs_gettok(src, '-', &tok))
-		goto failed;
-
-	if (!cfs_str2num_check(tok.ls_str, tok.ls_len,
-			       &re->re_lo, min, max))
-		goto failed;
-
-	/* <number> - */
-	if (cfs_str2num_check(src->ls_str, src->ls_len,
-			      &re->re_hi, min, max)) {
-		/* <number> - <number> is parsed */
-		re->re_stride = 1;
-		goto out;
-	}
-
-	/* go to check <number> '-' <number> '/' <number> */
-	if (cfs_gettok(src, '/', &tok)) {
-		if (!cfs_str2num_check(tok.ls_str, tok.ls_len,
-				       &re->re_hi, min, max))
-			goto failed;
-
-		/* <number> - <number> / ... */
-		if (cfs_str2num_check(src->ls_str, src->ls_len,
-				      &re->re_stride, min, max)) {
-			/* <number> - <number> / <number> is parsed */
-			goto out;
-		}
-	}
-
- out:
-	*expr = re;
-	return 0;
-
- failed:
-	LIBCFS_FREE(re, sizeof(*re));
-	return -EINVAL;
-}
-
-/**
- * Matches value (\a value) against ranges expression list \a expr_list.
- *
- * \retval 1 if \a value matches
- * \retval 0 otherwise
- */
-int
-cfs_expr_list_match(__u32 value, struct cfs_expr_list *expr_list)
-{
-	struct cfs_range_expr	*expr;
-
-	list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
-		if (value >= expr->re_lo && value <= expr->re_hi &&
-		    ((value - expr->re_lo) % expr->re_stride) == 0)
-			return 1;
-	}
-
-	return 0;
-}
-
-/**
- * Convert express list (\a expr_list) to an array of all matched values
- *
- * \retval N N is total number of all matched values
- * \retval 0 if expression list is empty
- * \retval < 0 for failure
- */
-int
-cfs_expr_list_values(struct cfs_expr_list *expr_list, int max, __u32 **valpp)
-{
-	struct cfs_range_expr	*expr;
-	__u32			*val;
-	int			count = 0;
-	int			i;
-
-	list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
-		for (i = expr->re_lo; i <= expr->re_hi; i++) {
-			if (((i - expr->re_lo) % expr->re_stride) == 0)
-				count++;
-		}
-	}
-
-	if (count == 0) /* empty expression list */
-		return 0;
-
-	if (count > max) {
-		CERROR("Number of values %d exceeds max allowed %d\n",
-		       max, count);
-		return -EINVAL;
-	}
-
-	LIBCFS_ALLOC(val, sizeof(val[0]) * count);
-	if (val == NULL)
-		return -ENOMEM;
-
-	count = 0;
-	list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
-		for (i = expr->re_lo; i <= expr->re_hi; i++) {
-			if (((i - expr->re_lo) % expr->re_stride) == 0)
-				val[count++] = i;
-		}
-	}
-
-	*valpp = val;
-	return count;
-}
-EXPORT_SYMBOL(cfs_expr_list_values);
-
-/**
- * Frees cfs_range_expr structures of \a expr_list.
- *
- * \retval none
- */
-void
-cfs_expr_list_free(struct cfs_expr_list *expr_list)
-{
-	while (!list_empty(&expr_list->el_exprs)) {
-		struct cfs_range_expr *expr;
-
-		expr = list_entry(expr_list->el_exprs.next,
-				      struct cfs_range_expr, re_link);
-		list_del(&expr->re_link);
-		LIBCFS_FREE(expr, sizeof(*expr));
-	}
-
-	LIBCFS_FREE(expr_list, sizeof(*expr_list));
-}
-EXPORT_SYMBOL(cfs_expr_list_free);
-
-/**
- * Parses \<cfs_expr_list\> token of the syntax.
- *
- * \retval 1 if \a str parses to \<number\> | \<expr_list\>
- * \retval 0 otherwise
- */
-int
-cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
-		    struct cfs_expr_list **elpp)
-{
-	struct cfs_expr_list	*expr_list;
-	struct cfs_range_expr	*expr;
-	struct cfs_lstr		src;
-	int			rc;
-
-	LIBCFS_ALLOC(expr_list, sizeof(*expr_list));
-	if (expr_list == NULL)
-		return -ENOMEM;
-
-	src.ls_str = str;
-	src.ls_len = len;
-
-	INIT_LIST_HEAD(&expr_list->el_exprs);
-
-	if (src.ls_str[0] == '[' &&
-	    src.ls_str[src.ls_len - 1] == ']') {
-		src.ls_str++;
-		src.ls_len -= 2;
-
-		rc = -EINVAL;
-		while (src.ls_str != NULL) {
-			struct cfs_lstr tok;
-
-			if (!cfs_gettok(&src, ',', &tok)) {
-				rc = -EINVAL;
-				break;
-			}
-
-			rc = cfs_range_expr_parse(&tok, min, max, 1, &expr);
-			if (rc != 0)
-				break;
-
-			list_add_tail(&expr->re_link,
-					  &expr_list->el_exprs);
-		}
-	} else {
-		rc = cfs_range_expr_parse(&src, min, max, 0, &expr);
-		if (rc == 0) {
-			list_add_tail(&expr->re_link,
-					  &expr_list->el_exprs);
-		}
-	}
-
-	if (rc != 0)
-		cfs_expr_list_free(expr_list);
-	else
-		*elpp = expr_list;
-
-	return rc;
-}
-EXPORT_SYMBOL(cfs_expr_list_parse);
-
-/**
- * Frees cfs_expr_list structures of \a list.
- *
- * For each struct cfs_expr_list structure found on \a list it frees
- * range_expr list attached to it and frees the cfs_expr_list itself.
- *
- * \retval none
- */
-void
-cfs_expr_list_free_list(struct list_head *list)
-{
-	struct cfs_expr_list *el;
-
-	while (!list_empty(list)) {
-		el = list_entry(list->next,
-				    struct cfs_expr_list, el_link);
-		list_del(&el->el_link);
-		cfs_expr_list_free(el);
-	}
-}
-
-int
-cfs_ip_addr_parse(char *str, int len, struct list_head *list)
-{
-	struct cfs_expr_list	*el;
-	struct cfs_lstr		src;
-	int			rc;
-	int			i;
-
-	src.ls_str = str;
-	src.ls_len = len;
-	i = 0;
-
-	while (src.ls_str != NULL) {
-		struct cfs_lstr res;
-
-		if (!cfs_gettok(&src, '.', &res)) {
-			rc = -EINVAL;
-			goto out;
-		}
-
-		rc = cfs_expr_list_parse(res.ls_str, res.ls_len, 0, 255, &el);
-		if (rc != 0)
-			goto out;
-
-		list_add_tail(&el->el_link, list);
-		i++;
-	}
-
-	if (i == 4)
-		return 0;
-
-	rc = -EINVAL;
- out:
-	cfs_expr_list_free_list(list);
-
-	return rc;
-}
-EXPORT_SYMBOL(cfs_ip_addr_parse);
-
-/**
- * Matches address (\a addr) against address set encoded in \a list.
- *
- * \retval 1 if \a addr matches
- * \retval 0 otherwise
- */
-int
-cfs_ip_addr_match(__u32 addr, struct list_head *list)
-{
-	struct cfs_expr_list *el;
-	int i = 0;
-
-	list_for_each_entry_reverse(el, list, el_link) {
-		if (!cfs_expr_list_match(addr & 0xff, el))
-			return 0;
-		addr >>= 8;
-		i++;
-	}
-
-	return i == 4;
-}
-EXPORT_SYMBOL(cfs_ip_addr_match);
-
-void
-cfs_ip_addr_free(struct list_head *list)
-{
-	cfs_expr_list_free_list(list);
-}
-EXPORT_SYMBOL(cfs_ip_addr_free);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
deleted file mode 100644
index f9262243f935..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c
+++ /dev/null
@@ -1,1056 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Author: liang@whamcloud.com
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include <linux/cpu.h>
-#include <linux/sched.h>
-#include "../../../include/linux/libcfs/libcfs.h"
-
-#ifdef CONFIG_SMP
-
-/**
- * modparam for setting number of partitions
- *
- *  0 : estimate best value based on cores or NUMA nodes
- *  1 : disable multiple partitions
- * >1 : specify number of partitions
- */
-static int	cpu_npartitions;
-module_param(cpu_npartitions, int, 0444);
-MODULE_PARM_DESC(cpu_npartitions, "# of CPU partitions");
-
-/**
- * modparam for setting CPU partitions patterns:
- *
- * i.e: "0[0,1,2,3] 1[4,5,6,7]", number before bracket is CPU partition ID,
- *      number in bracket is processor ID (core or HT)
- *
- * i.e: "N 0[0,1] 1[2,3]" the first character 'N' means numbers in bracket
- *       are NUMA node ID, number before bracket is CPU partition ID.
- *
- * NB: If user specified cpu_pattern, cpu_npartitions will be ignored
- */
-static char	*cpu_pattern = "";
-module_param(cpu_pattern, charp, 0444);
-MODULE_PARM_DESC(cpu_pattern, "CPU partitions pattern");
-
-struct cfs_cpt_data {
-	/* serialize hotplug etc */
-	spinlock_t		cpt_lock;
-	/* reserved for hotplug */
-	unsigned long		cpt_version;
-	/* mutex to protect cpt_cpumask */
-	struct mutex		cpt_mutex;
-	/* scratch buffer for set/unset_node */
-	cpumask_t		*cpt_cpumask;
-};
-
-static struct cfs_cpt_data	cpt_data;
-
-static void cfs_cpu_core_siblings(int cpu, cpumask_t *mask)
-{
-	/* return cpumask of cores in the same socket */
-	cpumask_copy(mask, topology_core_cpumask(cpu));
-}
-
-/* return cpumask of HTs in the same core */
-static void cfs_cpu_ht_siblings(int cpu, cpumask_t *mask)
-{
-	cpumask_copy(mask, topology_sibling_cpumask(cpu));
-}
-
-static void cfs_node_to_cpumask(int node, cpumask_t *mask)
-{
-	cpumask_copy(mask, cpumask_of_node(node));
-}
-
-void
-cfs_cpt_table_free(struct cfs_cpt_table *cptab)
-{
-	int	i;
-
-	if (cptab->ctb_cpu2cpt != NULL) {
-		LIBCFS_FREE(cptab->ctb_cpu2cpt,
-			    num_possible_cpus() *
-			    sizeof(cptab->ctb_cpu2cpt[0]));
-	}
-
-	for (i = 0; cptab->ctb_parts != NULL && i < cptab->ctb_nparts; i++) {
-		struct cfs_cpu_partition *part = &cptab->ctb_parts[i];
-
-		if (part->cpt_nodemask != NULL) {
-			LIBCFS_FREE(part->cpt_nodemask,
-				    sizeof(*part->cpt_nodemask));
-		}
-
-		if (part->cpt_cpumask != NULL)
-			LIBCFS_FREE(part->cpt_cpumask, cpumask_size());
-	}
-
-	if (cptab->ctb_parts != NULL) {
-		LIBCFS_FREE(cptab->ctb_parts,
-			    cptab->ctb_nparts * sizeof(cptab->ctb_parts[0]));
-	}
-
-	if (cptab->ctb_nodemask != NULL)
-		LIBCFS_FREE(cptab->ctb_nodemask, sizeof(*cptab->ctb_nodemask));
-	if (cptab->ctb_cpumask != NULL)
-		LIBCFS_FREE(cptab->ctb_cpumask, cpumask_size());
-
-	LIBCFS_FREE(cptab, sizeof(*cptab));
-}
-EXPORT_SYMBOL(cfs_cpt_table_free);
-
-struct cfs_cpt_table *
-cfs_cpt_table_alloc(unsigned int ncpt)
-{
-	struct cfs_cpt_table *cptab;
-	int	i;
-
-	LIBCFS_ALLOC(cptab, sizeof(*cptab));
-	if (cptab == NULL)
-		return NULL;
-
-	cptab->ctb_nparts = ncpt;
-
-	LIBCFS_ALLOC(cptab->ctb_cpumask, cpumask_size());
-	LIBCFS_ALLOC(cptab->ctb_nodemask, sizeof(*cptab->ctb_nodemask));
-
-	if (cptab->ctb_cpumask == NULL || cptab->ctb_nodemask == NULL)
-		goto failed;
-
-	LIBCFS_ALLOC(cptab->ctb_cpu2cpt,
-		     num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0]));
-	if (cptab->ctb_cpu2cpt == NULL)
-		goto failed;
-
-	memset(cptab->ctb_cpu2cpt, -1,
-	       num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0]));
-
-	LIBCFS_ALLOC(cptab->ctb_parts, ncpt * sizeof(cptab->ctb_parts[0]));
-	if (cptab->ctb_parts == NULL)
-		goto failed;
-
-	for (i = 0; i < ncpt; i++) {
-		struct cfs_cpu_partition *part = &cptab->ctb_parts[i];
-
-		LIBCFS_ALLOC(part->cpt_cpumask, cpumask_size());
-		LIBCFS_ALLOC(part->cpt_nodemask, sizeof(*part->cpt_nodemask));
-		if (part->cpt_cpumask == NULL || part->cpt_nodemask == NULL)
-			goto failed;
-	}
-
-	spin_lock(&cpt_data.cpt_lock);
-	/* Reserved for hotplug */
-	cptab->ctb_version = cpt_data.cpt_version;
-	spin_unlock(&cpt_data.cpt_lock);
-
-	return cptab;
-
- failed:
-	cfs_cpt_table_free(cptab);
-	return NULL;
-}
-EXPORT_SYMBOL(cfs_cpt_table_alloc);
-
-int
-cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len)
-{
-	char	*tmp = buf;
-	int	rc = 0;
-	int	i;
-	int	j;
-
-	for (i = 0; i < cptab->ctb_nparts; i++) {
-		if (len > 0) {
-			rc = snprintf(tmp, len, "%d\t: ", i);
-			len -= rc;
-		}
-
-		if (len <= 0) {
-			rc = -EFBIG;
-			goto out;
-		}
-
-		tmp += rc;
-		for_each_cpu(j, cptab->ctb_parts[i].cpt_cpumask) {
-			rc = snprintf(tmp, len, "%d ", j);
-			len -= rc;
-			if (len <= 0) {
-				rc = -EFBIG;
-				goto out;
-			}
-			tmp += rc;
-		}
-
-		*tmp = '\n';
-		tmp++;
-		len--;
-	}
-
- out:
-	if (rc < 0)
-		return rc;
-
-	return tmp - buf;
-}
-EXPORT_SYMBOL(cfs_cpt_table_print);
-
-int
-cfs_cpt_number(struct cfs_cpt_table *cptab)
-{
-	return cptab->ctb_nparts;
-}
-EXPORT_SYMBOL(cfs_cpt_number);
-
-int
-cfs_cpt_weight(struct cfs_cpt_table *cptab, int cpt)
-{
-	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
-
-	return cpt == CFS_CPT_ANY ?
-	       cpumask_weight(cptab->ctb_cpumask) :
-	       cpumask_weight(cptab->ctb_parts[cpt].cpt_cpumask);
-}
-EXPORT_SYMBOL(cfs_cpt_weight);
-
-int
-cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt)
-{
-	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
-
-	return cpt == CFS_CPT_ANY ?
-	       cpumask_any_and(cptab->ctb_cpumask,
-			       cpu_online_mask) < nr_cpu_ids :
-	       cpumask_any_and(cptab->ctb_parts[cpt].cpt_cpumask,
-			       cpu_online_mask) < nr_cpu_ids;
-}
-EXPORT_SYMBOL(cfs_cpt_online);
-
-cpumask_t *
-cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt)
-{
-	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
-
-	return cpt == CFS_CPT_ANY ?
-	       cptab->ctb_cpumask : cptab->ctb_parts[cpt].cpt_cpumask;
-}
-EXPORT_SYMBOL(cfs_cpt_cpumask);
-
-nodemask_t *
-cfs_cpt_nodemask(struct cfs_cpt_table *cptab, int cpt)
-{
-	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
-
-	return cpt == CFS_CPT_ANY ?
-	       cptab->ctb_nodemask : cptab->ctb_parts[cpt].cpt_nodemask;
-}
-EXPORT_SYMBOL(cfs_cpt_nodemask);
-
-int
-cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
-{
-	int	node;
-
-	LASSERT(cpt >= 0 && cpt < cptab->ctb_nparts);
-
-	if (cpu < 0 || cpu >= nr_cpu_ids || !cpu_online(cpu)) {
-		CDEBUG(D_INFO, "CPU %d is invalid or it's offline\n", cpu);
-		return 0;
-	}
-
-	if (cptab->ctb_cpu2cpt[cpu] != -1) {
-		CDEBUG(D_INFO, "CPU %d is already in partition %d\n",
-		       cpu, cptab->ctb_cpu2cpt[cpu]);
-		return 0;
-	}
-
-	cptab->ctb_cpu2cpt[cpu] = cpt;
-
-	LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_cpumask));
-	LASSERT(!cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
-
-	cpumask_set_cpu(cpu, cptab->ctb_cpumask);
-	cpumask_set_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
-
-	node = cpu_to_node(cpu);
-
-	/* first CPU of @node in this CPT table */
-	if (!node_isset(node, *cptab->ctb_nodemask))
-		node_set(node, *cptab->ctb_nodemask);
-
-	/* first CPU of @node in this partition */
-	if (!node_isset(node, *cptab->ctb_parts[cpt].cpt_nodemask))
-		node_set(node, *cptab->ctb_parts[cpt].cpt_nodemask);
-
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_set_cpu);
-
-void
-cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
-{
-	int	node;
-	int	i;
-
-	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
-
-	if (cpu < 0 || cpu >= nr_cpu_ids) {
-		CDEBUG(D_INFO, "Invalid CPU id %d\n", cpu);
-		return;
-	}
-
-	if (cpt == CFS_CPT_ANY) {
-		/* caller doesn't know the partition ID */
-		cpt = cptab->ctb_cpu2cpt[cpu];
-		if (cpt < 0) { /* not set in this CPT-table */
-			CDEBUG(D_INFO, "Try to unset cpu %d which is not in CPT-table %p\n",
-			       cpt, cptab);
-			return;
-		}
-
-	} else if (cpt != cptab->ctb_cpu2cpt[cpu]) {
-		CDEBUG(D_INFO,
-		       "CPU %d is not in cpu-partition %d\n", cpu, cpt);
-		return;
-	}
-
-	LASSERT(cpumask_test_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask));
-	LASSERT(cpumask_test_cpu(cpu, cptab->ctb_cpumask));
-
-	cpumask_clear_cpu(cpu, cptab->ctb_parts[cpt].cpt_cpumask);
-	cpumask_clear_cpu(cpu, cptab->ctb_cpumask);
-	cptab->ctb_cpu2cpt[cpu] = -1;
-
-	node = cpu_to_node(cpu);
-
-	LASSERT(node_isset(node, *cptab->ctb_parts[cpt].cpt_nodemask));
-	LASSERT(node_isset(node, *cptab->ctb_nodemask));
-
-	for_each_cpu(i, cptab->ctb_parts[cpt].cpt_cpumask) {
-		/* this CPT has other CPU belonging to this node? */
-		if (cpu_to_node(i) == node)
-			break;
-	}
-
-	if (i >= nr_cpu_ids)
-		node_clear(node, *cptab->ctb_parts[cpt].cpt_nodemask);
-
-	for_each_cpu(i, cptab->ctb_cpumask) {
-		/* this CPT-table has other CPU belonging to this node? */
-		if (cpu_to_node(i) == node)
-			break;
-	}
-
-	if (i >= nr_cpu_ids)
-		node_clear(node, *cptab->ctb_nodemask);
-
-	return;
-}
-EXPORT_SYMBOL(cfs_cpt_unset_cpu);
-
-int
-cfs_cpt_set_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
-{
-	int	i;
-
-	if (cpumask_weight(mask) == 0 ||
-	    cpumask_any_and(mask, cpu_online_mask) >= nr_cpu_ids) {
-		CDEBUG(D_INFO, "No online CPU is found in the CPU mask for CPU partition %d\n",
-		       cpt);
-		return 0;
-	}
-
-	for_each_cpu(i, mask) {
-		if (!cfs_cpt_set_cpu(cptab, cpt, i))
-			return 0;
-	}
-
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_set_cpumask);
-
-void
-cfs_cpt_unset_cpumask(struct cfs_cpt_table *cptab, int cpt, cpumask_t *mask)
-{
-	int	i;
-
-	for_each_cpu(i, mask)
-		cfs_cpt_unset_cpu(cptab, cpt, i);
-}
-EXPORT_SYMBOL(cfs_cpt_unset_cpumask);
-
-int
-cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node)
-{
-	cpumask_t	*mask;
-	int		rc;
-
-	if (node < 0 || node >= MAX_NUMNODES) {
-		CDEBUG(D_INFO,
-		       "Invalid NUMA id %d for CPU partition %d\n", node, cpt);
-		return 0;
-	}
-
-	mutex_lock(&cpt_data.cpt_mutex);
-
-	mask = cpt_data.cpt_cpumask;
-	cfs_node_to_cpumask(node, mask);
-
-	rc = cfs_cpt_set_cpumask(cptab, cpt, mask);
-
-	mutex_unlock(&cpt_data.cpt_mutex);
-
-	return rc;
-}
-EXPORT_SYMBOL(cfs_cpt_set_node);
-
-void
-cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node)
-{
-	cpumask_t *mask;
-
-	if (node < 0 || node >= MAX_NUMNODES) {
-		CDEBUG(D_INFO,
-		       "Invalid NUMA id %d for CPU partition %d\n", node, cpt);
-		return;
-	}
-
-	mutex_lock(&cpt_data.cpt_mutex);
-
-	mask = cpt_data.cpt_cpumask;
-	cfs_node_to_cpumask(node, mask);
-
-	cfs_cpt_unset_cpumask(cptab, cpt, mask);
-
-	mutex_unlock(&cpt_data.cpt_mutex);
-}
-EXPORT_SYMBOL(cfs_cpt_unset_node);
-
-int
-cfs_cpt_set_nodemask(struct cfs_cpt_table *cptab, int cpt, nodemask_t *mask)
-{
-	int	i;
-
-	for_each_node_mask(i, *mask) {
-		if (!cfs_cpt_set_node(cptab, cpt, i))
-			return 0;
-	}
-
-	return 1;
-}
-EXPORT_SYMBOL(cfs_cpt_set_nodemask);
-
-void
-cfs_cpt_unset_nodemask(struct cfs_cpt_table *cptab, int cpt, nodemask_t *mask)
-{
-	int	i;
-
-	for_each_node_mask(i, *mask)
-		cfs_cpt_unset_node(cptab, cpt, i);
-}
-EXPORT_SYMBOL(cfs_cpt_unset_nodemask);
-
-void
-cfs_cpt_clear(struct cfs_cpt_table *cptab, int cpt)
-{
-	int	last;
-	int	i;
-
-	if (cpt == CFS_CPT_ANY) {
-		last = cptab->ctb_nparts - 1;
-		cpt = 0;
-	} else {
-		last = cpt;
-	}
-
-	for (; cpt <= last; cpt++) {
-		for_each_cpu(i, cptab->ctb_parts[cpt].cpt_cpumask)
-			cfs_cpt_unset_cpu(cptab, cpt, i);
-	}
-}
-EXPORT_SYMBOL(cfs_cpt_clear);
-
-int
-cfs_cpt_spread_node(struct cfs_cpt_table *cptab, int cpt)
-{
-	nodemask_t	*mask;
-	int		weight;
-	int		rotor;
-	int		node;
-
-	/* convert CPU partition ID to HW node id */
-
-	if (cpt < 0 || cpt >= cptab->ctb_nparts) {
-		mask = cptab->ctb_nodemask;
-		rotor = cptab->ctb_spread_rotor++;
-	} else {
-		mask = cptab->ctb_parts[cpt].cpt_nodemask;
-		rotor = cptab->ctb_parts[cpt].cpt_spread_rotor++;
-	}
-
-	weight = nodes_weight(*mask);
-	LASSERT(weight > 0);
-
-	rotor %= weight;
-
-	for_each_node_mask(node, *mask) {
-		if (rotor-- == 0)
-			return node;
-	}
-
-	LBUG();
-	return 0;
-}
-EXPORT_SYMBOL(cfs_cpt_spread_node);
-
-int
-cfs_cpt_current(struct cfs_cpt_table *cptab, int remap)
-{
-	int	cpu = smp_processor_id();
-	int	cpt = cptab->ctb_cpu2cpt[cpu];
-
-	if (cpt < 0) {
-		if (!remap)
-			return cpt;
-
-		/* don't return negative value for safety of upper layer,
-		 * instead we shadow the unknown cpu to a valid partition ID */
-		cpt = cpu % cptab->ctb_nparts;
-	}
-
-	return cpt;
-}
-EXPORT_SYMBOL(cfs_cpt_current);
-
-int
-cfs_cpt_of_cpu(struct cfs_cpt_table *cptab, int cpu)
-{
-	LASSERT(cpu >= 0 && cpu < nr_cpu_ids);
-
-	return cptab->ctb_cpu2cpt[cpu];
-}
-EXPORT_SYMBOL(cfs_cpt_of_cpu);
-
-int
-cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt)
-{
-	cpumask_t	*cpumask;
-	nodemask_t	*nodemask;
-	int		rc;
-	int		i;
-
-	LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts));
-
-	if (cpt == CFS_CPT_ANY) {
-		cpumask = cptab->ctb_cpumask;
-		nodemask = cptab->ctb_nodemask;
-	} else {
-		cpumask = cptab->ctb_parts[cpt].cpt_cpumask;
-		nodemask = cptab->ctb_parts[cpt].cpt_nodemask;
-	}
-
-	if (cpumask_any_and(cpumask, cpu_online_mask) >= nr_cpu_ids) {
-		CERROR("No online CPU found in CPU partition %d, did someone do CPU hotplug on system? You might need to reload Lustre modules to keep system working well.\n",
-		       cpt);
-		return -EINVAL;
-	}
-
-	for_each_online_cpu(i) {
-		if (cpumask_test_cpu(i, cpumask))
-			continue;
-
-		rc = set_cpus_allowed_ptr(current, cpumask);
-		set_mems_allowed(*nodemask);
-		if (rc == 0)
-			schedule(); /* switch to allowed CPU */
-
-		return rc;
-	}
-
-	/* don't need to set affinity because all online CPUs are covered */
-	return 0;
-}
-EXPORT_SYMBOL(cfs_cpt_bind);
-
-/**
- * Choose max to \a number CPUs from \a node and set them in \a cpt.
- * We always prefer to choose CPU in the same core/socket.
- */
-static int
-cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt,
-		     cpumask_t *node, int number)
-{
-	cpumask_t	*socket = NULL;
-	cpumask_t	*core = NULL;
-	int		rc = 0;
-	int		cpu;
-
-	LASSERT(number > 0);
-
-	if (number >= cpumask_weight(node)) {
-		while (!cpumask_empty(node)) {
-			cpu = cpumask_first(node);
-
-			rc = cfs_cpt_set_cpu(cptab, cpt, cpu);
-			if (!rc)
-				return -EINVAL;
-			cpumask_clear_cpu(cpu, node);
-		}
-		return 0;
-	}
-
-	/* allocate scratch buffer */
-	LIBCFS_ALLOC(socket, cpumask_size());
-	LIBCFS_ALLOC(core, cpumask_size());
-	if (socket == NULL || core == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	while (!cpumask_empty(node)) {
-		cpu = cpumask_first(node);
-
-		/* get cpumask for cores in the same socket */
-		cfs_cpu_core_siblings(cpu, socket);
-		cpumask_and(socket, socket, node);
-
-		LASSERT(!cpumask_empty(socket));
-
-		while (!cpumask_empty(socket)) {
-			int     i;
-
-			/* get cpumask for hts in the same core */
-			cfs_cpu_ht_siblings(cpu, core);
-			cpumask_and(core, core, node);
-
-			LASSERT(!cpumask_empty(core));
-
-			for_each_cpu(i, core) {
-				cpumask_clear_cpu(i, socket);
-				cpumask_clear_cpu(i, node);
-
-				rc = cfs_cpt_set_cpu(cptab, cpt, i);
-				if (!rc) {
-					rc = -EINVAL;
-					goto out;
-				}
-
-				if (--number == 0)
-					goto out;
-			}
-			cpu = cpumask_first(socket);
-		}
-	}
-
- out:
-	if (socket != NULL)
-		LIBCFS_FREE(socket, cpumask_size());
-	if (core != NULL)
-		LIBCFS_FREE(core, cpumask_size());
-	return rc;
-}
-
-#define CPT_WEIGHT_MIN  4u
-
-static unsigned int
-cfs_cpt_num_estimate(void)
-{
-	unsigned nnode = num_online_nodes();
-	unsigned ncpu  = num_online_cpus();
-	unsigned ncpt;
-
-	if (ncpu <= CPT_WEIGHT_MIN) {
-		ncpt = 1;
-		goto out;
-	}
-
-	/* generate reasonable number of CPU partitions based on total number
-	 * of CPUs, Preferred N should be power2 and match this condition:
-	 * 2 * (N - 1)^2 < NCPUS <= 2 * N^2 */
-	for (ncpt = 2; ncpu > 2 * ncpt * ncpt; ncpt <<= 1) {}
-
-	if (ncpt <= nnode) { /* fat numa system */
-		while (nnode > ncpt)
-			nnode >>= 1;
-
-	} else { /* ncpt > nnode */
-		while ((nnode << 1) <= ncpt)
-			nnode <<= 1;
-	}
-
-	ncpt = nnode;
-
- out:
-#if (BITS_PER_LONG == 32)
-	/* config many CPU partitions on 32-bit system could consume
-	 * too much memory */
-	ncpt = min(2U, ncpt);
-#endif
-	while (ncpu % ncpt != 0)
-		ncpt--; /* worst case is 1 */
-
-	return ncpt;
-}
-
-static struct cfs_cpt_table *
-cfs_cpt_table_create(int ncpt)
-{
-	struct cfs_cpt_table *cptab = NULL;
-	cpumask_t	*mask = NULL;
-	int		cpt = 0;
-	int		num;
-	int		rc;
-	int		i;
-
-	rc = cfs_cpt_num_estimate();
-	if (ncpt <= 0)
-		ncpt = rc;
-
-	if (ncpt > num_online_cpus() || ncpt > 4 * rc) {
-		CWARN("CPU partition number %d is larger than suggested value (%d), your system may have performance issue or run out of memory while under pressure\n",
-		      ncpt, rc);
-	}
-
-	if (num_online_cpus() % ncpt != 0) {
-		CERROR("CPU number %d is not multiple of cpu_npartition %d, please try different cpu_npartitions value or set pattern string by cpu_pattern=STRING\n",
-		       (int)num_online_cpus(), ncpt);
-		goto failed;
-	}
-
-	cptab = cfs_cpt_table_alloc(ncpt);
-	if (cptab == NULL) {
-		CERROR("Failed to allocate CPU map(%d)\n", ncpt);
-		goto failed;
-	}
-
-	num = num_online_cpus() / ncpt;
-	if (num == 0) {
-		CERROR("CPU changed while setting CPU partition\n");
-		goto failed;
-	}
-
-	LIBCFS_ALLOC(mask, cpumask_size());
-	if (mask == NULL) {
-		CERROR("Failed to allocate scratch cpumask\n");
-		goto failed;
-	}
-
-	for_each_online_node(i) {
-		cfs_node_to_cpumask(i, mask);
-
-		while (!cpumask_empty(mask)) {
-			struct cfs_cpu_partition *part;
-			int    n;
-
-			if (cpt >= ncpt)
-				goto failed;
-
-			part = &cptab->ctb_parts[cpt];
-
-			n = num - cpumask_weight(part->cpt_cpumask);
-			LASSERT(n > 0);
-
-			rc = cfs_cpt_choose_ncpus(cptab, cpt, mask, n);
-			if (rc < 0)
-				goto failed;
-
-			LASSERT(num >= cpumask_weight(part->cpt_cpumask));
-			if (num == cpumask_weight(part->cpt_cpumask))
-				cpt++;
-		}
-	}
-
-	if (cpt != ncpt ||
-	    num != cpumask_weight(cptab->ctb_parts[ncpt - 1].cpt_cpumask)) {
-		CERROR("Expect %d(%d) CPU partitions but got %d(%d), CPU hotplug/unplug while setting?\n",
-		       cptab->ctb_nparts, num, cpt,
-		       cpumask_weight(cptab->ctb_parts[ncpt - 1].cpt_cpumask));
-		goto failed;
-	}
-
-	LIBCFS_FREE(mask, cpumask_size());
-
-	return cptab;
-
- failed:
-	CERROR("Failed to setup CPU-partition-table with %d CPU-partitions, online HW nodes: %d, HW cpus: %d.\n",
-	       ncpt, num_online_nodes(), num_online_cpus());
-
-	if (mask != NULL)
-		LIBCFS_FREE(mask, cpumask_size());
-
-	if (cptab != NULL)
-		cfs_cpt_table_free(cptab);
-
-	return NULL;
-}
-
-static struct cfs_cpt_table *
-cfs_cpt_table_create_pattern(char *pattern)
-{
-	struct cfs_cpt_table	*cptab;
-	char			*str	= pattern;
-	int			node	= 0;
-	int			high;
-	int			ncpt;
-	int			c;
-
-	for (ncpt = 0;; ncpt++) { /* quick scan bracket */
-		str = strchr(str, '[');
-		if (str == NULL)
-			break;
-		str++;
-	}
-
-	str = cfs_trimwhite(pattern);
-	if (*str == 'n' || *str == 'N') {
-		pattern = str + 1;
-		node = 1;
-	}
-
-	if (ncpt == 0 ||
-	    (node && ncpt > num_online_nodes()) ||
-	    (!node && ncpt > num_online_cpus())) {
-		CERROR("Invalid pattern %s, or too many partitions %d\n",
-		       pattern, ncpt);
-		return NULL;
-	}
-
-	high = node ? MAX_NUMNODES - 1 : nr_cpu_ids - 1;
-
-	cptab = cfs_cpt_table_alloc(ncpt);
-	if (cptab == NULL) {
-		CERROR("Failed to allocate cpu partition table\n");
-		return NULL;
-	}
-
-	for (str = cfs_trimwhite(pattern), c = 0;; c++) {
-		struct cfs_range_expr	*range;
-		struct cfs_expr_list	*el;
-		char			*bracket = strchr(str, '[');
-		int			cpt;
-		int			rc;
-		int			i;
-		int			n;
-
-		if (bracket == NULL) {
-			if (*str != 0) {
-				CERROR("Invalid pattern %s\n", str);
-				goto failed;
-			} else if (c != ncpt) {
-				CERROR("expect %d partitions but found %d\n",
-				       ncpt, c);
-				goto failed;
-			}
-			break;
-		}
-
-		if (sscanf(str, "%d%n", &cpt, &n) < 1) {
-			CERROR("Invalid cpu pattern %s\n", str);
-			goto failed;
-		}
-
-		if (cpt < 0 || cpt >= ncpt) {
-			CERROR("Invalid partition id %d, total partitions %d\n",
-			       cpt, ncpt);
-			goto failed;
-		}
-
-		if (cfs_cpt_weight(cptab, cpt) != 0) {
-			CERROR("Partition %d has already been set.\n", cpt);
-			goto failed;
-		}
-
-		str = cfs_trimwhite(str + n);
-		if (str != bracket) {
-			CERROR("Invalid pattern %s\n", str);
-			goto failed;
-		}
-
-		bracket = strchr(str, ']');
-		if (bracket == NULL) {
-			CERROR("missing right bracket for cpt %d, %s\n",
-			       cpt, str);
-			goto failed;
-		}
-
-		if (cfs_expr_list_parse(str, (bracket - str) + 1,
-					0, high, &el) != 0) {
-			CERROR("Can't parse number range: %s\n", str);
-			goto failed;
-		}
-
-		list_for_each_entry(range, &el->el_exprs, re_link) {
-			for (i = range->re_lo; i <= range->re_hi; i++) {
-				if ((i - range->re_lo) % range->re_stride != 0)
-					continue;
-
-				rc = node ? cfs_cpt_set_node(cptab, cpt, i) :
-					    cfs_cpt_set_cpu(cptab, cpt, i);
-				if (!rc) {
-					cfs_expr_list_free(el);
-					goto failed;
-				}
-			}
-		}
-
-		cfs_expr_list_free(el);
-
-		if (!cfs_cpt_online(cptab, cpt)) {
-			CERROR("No online CPU is found on partition %d\n", cpt);
-			goto failed;
-		}
-
-		str = cfs_trimwhite(bracket + 1);
-	}
-
-	return cptab;
-
- failed:
-	cfs_cpt_table_free(cptab);
-	return NULL;
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-static int
-cfs_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
-{
-	unsigned int  cpu = (unsigned long)hcpu;
-	bool	     warn;
-
-	switch (action) {
-	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
-	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
-		spin_lock(&cpt_data.cpt_lock);
-		cpt_data.cpt_version++;
-		spin_unlock(&cpt_data.cpt_lock);
-	default:
-		if (action != CPU_DEAD && action != CPU_DEAD_FROZEN) {
-			CDEBUG(D_INFO, "CPU changed [cpu %u action %lx]\n",
-			       cpu, action);
-			break;
-		}
-
-		mutex_lock(&cpt_data.cpt_mutex);
-		/* if all HTs in a core are offline, it may break affinity */
-		cfs_cpu_ht_siblings(cpu, cpt_data.cpt_cpumask);
-		warn = cpumask_any_and(cpt_data.cpt_cpumask,
-				       cpu_online_mask) >= nr_cpu_ids;
-		mutex_unlock(&cpt_data.cpt_mutex);
-		CDEBUG(warn ? D_WARNING : D_INFO,
-		       "Lustre: can't support CPU plug-out well now, performance and stability could be impacted [CPU %u action: %lx]\n",
-		       cpu, action);
-	}
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block cfs_cpu_notifier = {
-	.notifier_call	= cfs_cpu_notify,
-	.priority	= 0
-};
-
-#endif
-
-void
-cfs_cpu_fini(void)
-{
-	if (cfs_cpt_table != NULL)
-		cfs_cpt_table_free(cfs_cpt_table);
-
-#ifdef CONFIG_HOTPLUG_CPU
-	unregister_hotcpu_notifier(&cfs_cpu_notifier);
-#endif
-	if (cpt_data.cpt_cpumask != NULL)
-		LIBCFS_FREE(cpt_data.cpt_cpumask, cpumask_size());
-}
-
-int
-cfs_cpu_init(void)
-{
-	LASSERT(cfs_cpt_table == NULL);
-
-	memset(&cpt_data, 0, sizeof(cpt_data));
-
-	LIBCFS_ALLOC(cpt_data.cpt_cpumask, cpumask_size());
-	if (cpt_data.cpt_cpumask == NULL) {
-		CERROR("Failed to allocate scratch buffer\n");
-		return -1;
-	}
-
-	spin_lock_init(&cpt_data.cpt_lock);
-	mutex_init(&cpt_data.cpt_mutex);
-
-#ifdef CONFIG_HOTPLUG_CPU
-	register_hotcpu_notifier(&cfs_cpu_notifier);
-#endif
-
-	if (*cpu_pattern != 0) {
-		cfs_cpt_table = cfs_cpt_table_create_pattern(cpu_pattern);
-		if (cfs_cpt_table == NULL) {
-			CERROR("Failed to create cptab from pattern %s\n",
-			       cpu_pattern);
-			goto failed;
-		}
-
-	} else {
-		cfs_cpt_table = cfs_cpt_table_create(cpu_npartitions);
-		if (cfs_cpt_table == NULL) {
-			CERROR("Failed to create ptable with npartitions %d\n",
-			       cpu_npartitions);
-			goto failed;
-		}
-	}
-
-	spin_lock(&cpt_data.cpt_lock);
-	if (cfs_cpt_table->ctb_version != cpt_data.cpt_version) {
-		spin_unlock(&cpt_data.cpt_lock);
-		CERROR("CPU hotplug/unplug during setup\n");
-		goto failed;
-	}
-	spin_unlock(&cpt_data.cpt_lock);
-
-	LCONSOLE(0, "HW CPU cores: %d, npartitions: %d\n",
-		 num_online_cpus(), cfs_cpt_number(cfs_cpt_table));
-	return 0;
-
- failed:
-	cfs_cpu_fini();
-	return -1;
-}
-
-#endif
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto-adler.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto-adler.c
deleted file mode 100644
index 5e185fa5942a..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto-adler.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/* GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see http://www.gnu.org/licenses
- *
- * Please  visit http://www.xyratex.com/contact if you need additional
- * information or have any questions.
- *
- * GPL HEADER END
- */
-
-/*
- * Copyright 2012 Xyratex Technology Limited
- */
-
-/*
- * This is crypto api shash wrappers to zlib_adler32.
- */
-
-#include <linux/module.h>
-#include <linux/zutil.h>
-#include <crypto/internal/hash.h>
-#include "linux-crypto.h"
-
-#define CHKSUM_BLOCK_SIZE	1
-#define CHKSUM_DIGEST_SIZE	4
-
-static u32 __adler32(u32 cksum, unsigned char const *p, size_t len)
-{
-	return zlib_adler32(cksum, p, len);
-}
-
-static int adler32_cra_init(struct crypto_tfm *tfm)
-{
-	u32 *key = crypto_tfm_ctx(tfm);
-
-	*key = 1;
-
-	return 0;
-}
-
-static int adler32_setkey(struct crypto_shash *hash, const u8 *key,
-			  unsigned int keylen)
-{
-	u32 *mctx = crypto_shash_ctx(hash);
-
-	if (keylen != sizeof(u32)) {
-		crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
-		return -EINVAL;
-	}
-	*mctx = *(u32 *)key;
-	return 0;
-}
-
-static int adler32_init(struct shash_desc *desc)
-{
-	u32 *mctx = crypto_shash_ctx(desc->tfm);
-	u32 *cksump = shash_desc_ctx(desc);
-
-	*cksump = *mctx;
-
-	return 0;
-}
-
-static int adler32_update(struct shash_desc *desc, const u8 *data,
-			  unsigned int len)
-{
-	u32 *cksump = shash_desc_ctx(desc);
-
-	*cksump = __adler32(*cksump, data, len);
-	return 0;
-}
-static int __adler32_finup(u32 *cksump, const u8 *data, unsigned int len,
-			   u8 *out)
-{
-	*(u32 *)out = __adler32(*cksump, data, len);
-	return 0;
-}
-
-static int adler32_finup(struct shash_desc *desc, const u8 *data,
-			 unsigned int len, u8 *out)
-{
-	return __adler32_finup(shash_desc_ctx(desc), data, len, out);
-}
-
-static int adler32_final(struct shash_desc *desc, u8 *out)
-{
-	u32 *cksump = shash_desc_ctx(desc);
-
-	*(u32 *)out = *cksump;
-	return 0;
-}
-
-static int adler32_digest(struct shash_desc *desc, const u8 *data,
-			  unsigned int len, u8 *out)
-{
-	return __adler32_finup(crypto_shash_ctx(desc->tfm), data, len,
-				    out);
-}
-static struct shash_alg alg = {
-	.setkey		= adler32_setkey,
-	.init		= adler32_init,
-	.update		= adler32_update,
-	.final		= adler32_final,
-	.finup		= adler32_finup,
-	.digest		= adler32_digest,
-	.descsize	= sizeof(u32),
-	.digestsize	= CHKSUM_DIGEST_SIZE,
-	.base		= {
-		.cra_name		= "adler32",
-		.cra_driver_name	= "adler32-zlib",
-		.cra_priority		= 100,
-		.cra_blocksize		= CHKSUM_BLOCK_SIZE,
-		.cra_ctxsize		= sizeof(u32),
-		.cra_module		= THIS_MODULE,
-		.cra_init		= adler32_cra_init,
-	}
-};
-
-
-int cfs_crypto_adler32_register(void)
-{
-	return crypto_register_shash(&alg);
-}
-
-void cfs_crypto_adler32_unregister(void)
-{
-	crypto_unregister_shash(&alg);
-}
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c
deleted file mode 100644
index fbbc8a7e308d..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/* GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see http://www.gnu.org/licenses
- *
- * Please  visit http://www.xyratex.com/contact if you need additional
- * information or have any questions.
- *
- * GPL HEADER END
- */
-
-/*
- * Copyright 2012 Xyratex Technology Limited
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-
-#include <linux/crypto.h>
-#include <linux/scatterlist.h>
-#include "../../../include/linux/libcfs/libcfs.h"
-#include "linux-crypto.h"
-/**
- *  Array of  hash algorithm speed in MByte per second
- */
-static int cfs_crypto_hash_speeds[CFS_HASH_ALG_MAX];
-
-
-
-static int cfs_crypto_hash_alloc(unsigned char alg_id,
-				 const struct cfs_crypto_hash_type **type,
-				 struct hash_desc *desc, unsigned char *key,
-				 unsigned int key_len)
-{
-	int     err = 0;
-
-	*type = cfs_crypto_hash_type(alg_id);
-
-	if (*type == NULL) {
-		CWARN("Unsupported hash algorithm id = %d, max id is %d\n",
-		      alg_id, CFS_HASH_ALG_MAX);
-		return -EINVAL;
-	}
-	desc->tfm = crypto_alloc_hash((*type)->cht_name, 0, 0);
-
-	if (desc->tfm == NULL)
-		return -EINVAL;
-
-	if (IS_ERR(desc->tfm)) {
-		CDEBUG(D_INFO, "Failed to alloc crypto hash %s\n",
-		       (*type)->cht_name);
-		return PTR_ERR(desc->tfm);
-	}
-
-	desc->flags = 0;
-
-	/** Shash have different logic for initialization then digest
-	 * shash: crypto_hash_setkey, crypto_hash_init
-	 * digest: crypto_digest_init, crypto_digest_setkey
-	 * Skip this function for digest, because we use shash logic at
-	 * cfs_crypto_hash_alloc.
-	 */
-	if (key != NULL) {
-		err = crypto_hash_setkey(desc->tfm, key, key_len);
-	} else if ((*type)->cht_key != 0) {
-		err = crypto_hash_setkey(desc->tfm,
-					 (unsigned char *)&((*type)->cht_key),
-					 (*type)->cht_size);
-	}
-
-	if (err != 0) {
-		crypto_free_hash(desc->tfm);
-		return err;
-	}
-
-	CDEBUG(D_INFO, "Using crypto hash: %s (%s) speed %d MB/s\n",
-	       (crypto_hash_tfm(desc->tfm))->__crt_alg->cra_name,
-	       (crypto_hash_tfm(desc->tfm))->__crt_alg->cra_driver_name,
-	       cfs_crypto_hash_speeds[alg_id]);
-
-	return crypto_hash_init(desc);
-}
-
-int cfs_crypto_hash_digest(unsigned char alg_id,
-			   const void *buf, unsigned int buf_len,
-			   unsigned char *key, unsigned int key_len,
-			   unsigned char *hash, unsigned int *hash_len)
-{
-	struct scatterlist	sl;
-	struct hash_desc	hdesc;
-	int			err;
-	const struct cfs_crypto_hash_type	*type;
-
-	if (buf == NULL || buf_len == 0 || hash_len == NULL)
-		return -EINVAL;
-
-	err = cfs_crypto_hash_alloc(alg_id, &type, &hdesc, key, key_len);
-	if (err != 0)
-		return err;
-
-	if (hash == NULL || *hash_len < type->cht_size) {
-		*hash_len = type->cht_size;
-		crypto_free_hash(hdesc.tfm);
-		return -ENOSPC;
-	}
-	sg_init_one(&sl, buf, buf_len);
-
-	hdesc.flags = 0;
-	err = crypto_hash_digest(&hdesc, &sl, sl.length, hash);
-	crypto_free_hash(hdesc.tfm);
-
-	return err;
-}
-EXPORT_SYMBOL(cfs_crypto_hash_digest);
-
-struct cfs_crypto_hash_desc *
-	cfs_crypto_hash_init(unsigned char alg_id,
-			     unsigned char *key, unsigned int key_len)
-{
-
-	struct  hash_desc       *hdesc;
-	int		     err;
-	const struct cfs_crypto_hash_type       *type;
-
-	hdesc = kmalloc(sizeof(*hdesc), 0);
-	if (hdesc == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	err = cfs_crypto_hash_alloc(alg_id, &type, hdesc, key, key_len);
-
-	if (err) {
-		kfree(hdesc);
-		return ERR_PTR(err);
-	}
-	return (struct cfs_crypto_hash_desc *)hdesc;
-}
-EXPORT_SYMBOL(cfs_crypto_hash_init);
-
-int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *hdesc,
-				struct page *page, unsigned int offset,
-				unsigned int len)
-{
-	struct scatterlist sl;
-
-	sg_init_table(&sl, 1);
-	sg_set_page(&sl, page, len, offset & ~CFS_PAGE_MASK);
-
-	return crypto_hash_update((struct hash_desc *)hdesc, &sl, sl.length);
-}
-EXPORT_SYMBOL(cfs_crypto_hash_update_page);
-
-int cfs_crypto_hash_update(struct cfs_crypto_hash_desc *hdesc,
-			   const void *buf, unsigned int buf_len)
-{
-	struct scatterlist sl;
-
-	sg_init_one(&sl, buf, buf_len);
-
-	return crypto_hash_update((struct hash_desc *)hdesc, &sl, sl.length);
-}
-EXPORT_SYMBOL(cfs_crypto_hash_update);
-
-/*      If hash_len pointer is NULL - destroy descriptor. */
-int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *hdesc,
-			  unsigned char *hash, unsigned int *hash_len)
-{
-	int     err;
-	int     size = crypto_hash_digestsize(((struct hash_desc *)hdesc)->tfm);
-
-	if (hash_len == NULL) {
-		crypto_free_hash(((struct hash_desc *)hdesc)->tfm);
-		kfree(hdesc);
-		return 0;
-	}
-	if (hash == NULL || *hash_len < size) {
-		*hash_len = size;
-		return -ENOSPC;
-	}
-	err = crypto_hash_final((struct hash_desc *) hdesc, hash);
-
-	if (err < 0) {
-		/* May be caller can fix error */
-		return err;
-	}
-	crypto_free_hash(((struct hash_desc *)hdesc)->tfm);
-	kfree(hdesc);
-	return err;
-}
-EXPORT_SYMBOL(cfs_crypto_hash_final);
-
-static void cfs_crypto_performance_test(unsigned char alg_id,
-					const unsigned char *buf,
-					unsigned int buf_len)
-{
-	unsigned long		   start, end;
-	int			     bcount, err = 0;
-	int			     sec = 1; /* do test only 1 sec */
-	unsigned char		   hash[64];
-	unsigned int		    hash_len = 64;
-
-	for (start = jiffies, end = start + sec * HZ, bcount = 0;
-	     time_before(jiffies, end); bcount++) {
-		err = cfs_crypto_hash_digest(alg_id, buf, buf_len, NULL, 0,
-					     hash, &hash_len);
-		if (err)
-			break;
-
-	}
-	end = jiffies;
-
-	if (err) {
-		cfs_crypto_hash_speeds[alg_id] =  -1;
-		CDEBUG(D_INFO, "Crypto hash algorithm %s, err = %d\n",
-		       cfs_crypto_hash_name(alg_id), err);
-	} else {
-		unsigned long   tmp;
-		tmp = ((bcount * buf_len / jiffies_to_msecs(end - start)) *
-		       1000) / (1024 * 1024);
-		cfs_crypto_hash_speeds[alg_id] = (int)tmp;
-	}
-	CDEBUG(D_INFO, "Crypto hash algorithm %s speed = %d MB/s\n",
-	       cfs_crypto_hash_name(alg_id), cfs_crypto_hash_speeds[alg_id]);
-}
-
-int cfs_crypto_hash_speed(unsigned char hash_alg)
-{
-	if (hash_alg < CFS_HASH_ALG_MAX)
-		return cfs_crypto_hash_speeds[hash_alg];
-	else
-		return -1;
-}
-EXPORT_SYMBOL(cfs_crypto_hash_speed);
-
-/**
- * Do performance test for all hash algorithms.
- */
-static int cfs_crypto_test_hashes(void)
-{
-	unsigned char	   i;
-	unsigned char	   *data;
-	unsigned int	    j;
-	/* Data block size for testing hash. Maximum
-	 * kmalloc size for 2.6.18 kernel is 128K */
-	unsigned int	    data_len = 1 * 128 * 1024;
-
-	data = kmalloc(data_len, 0);
-	if (data == NULL) {
-		CERROR("Failed to allocate mem\n");
-		return -ENOMEM;
-	}
-
-	for (j = 0; j < data_len; j++)
-		data[j] = j & 0xff;
-
-	for (i = 0; i < CFS_HASH_ALG_MAX; i++)
-		cfs_crypto_performance_test(i, data, data_len);
-
-	kfree(data);
-	return 0;
-}
-
-static int adler32;
-
-int cfs_crypto_register(void)
-{
-	request_module("crc32c");
-
-	adler32 = cfs_crypto_adler32_register();
-
-	/* check all algorithms and do performance test */
-	cfs_crypto_test_hashes();
-	return 0;
-}
-void cfs_crypto_unregister(void)
-{
-	if (adler32 == 0)
-		cfs_crypto_adler32_unregister();
-
-	return;
-}
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.h b/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.h
deleted file mode 100644
index 18e8cd4d8758..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.h
+++ /dev/null
@@ -1,29 +0,0 @@
- /*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see http://www.gnu.org/licenses
- *
- * Please  visit http://www.xyratex.com/contact if you need additional
- * information or have any questions.
- *
- * GPL HEADER END
- */
-
-/**
- * Functions for start/stop shash adler32 algorithm.
- */
-int cfs_crypto_adler32_register(void);
-void cfs_crypto_adler32_unregister(void);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
deleted file mode 100644
index 277f6b890e09..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/linux/linux-curproc.c
- *
- * Lustre curproc API implementation for Linux kernel
- *
- * Author: Nikita Danilov <nikita@clusterfs.com>
- */
-
-#include <linux/sched.h>
-#include <linux/fs_struct.h>
-
-#include <linux/compat.h>
-#include <linux/thread_info.h>
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../../include/linux/libcfs/libcfs.h"
-
-/*
- * Implementation of cfs_curproc API (see portals/include/libcfs/curproc.h)
- * for Linux kernel.
- */
-
-void cfs_cap_raise(cfs_cap_t cap)
-{
-	struct cred *cred;
-
-	cred = prepare_creds();
-	if (cred) {
-		cap_raise(cred->cap_effective, cap);
-		commit_creds(cred);
-	}
-}
-
-void cfs_cap_lower(cfs_cap_t cap)
-{
-	struct cred *cred;
-
-	cred = prepare_creds();
-	if (cred) {
-		cap_lower(cred->cap_effective, cap);
-		commit_creds(cred);
-	}
-}
-
-int cfs_cap_raised(cfs_cap_t cap)
-{
-	return cap_raised(current_cap(), cap);
-}
-
-static void cfs_kernel_cap_pack(kernel_cap_t kcap, cfs_cap_t *cap)
-{
-	/* XXX lost high byte */
-	*cap = kcap.cap[0];
-}
-
-cfs_cap_t cfs_curproc_cap_pack(void)
-{
-	cfs_cap_t cap;
-	cfs_kernel_cap_pack(current_cap(), &cap);
-	return cap;
-}
-
-EXPORT_SYMBOL(cfs_cap_raise);
-EXPORT_SYMBOL(cfs_cap_lower);
-EXPORT_SYMBOL(cfs_cap_raised);
-EXPORT_SYMBOL(cfs_curproc_cap_pack);
-
-/*
- * Local variables:
- * c-indentation-style: "K&R"
- * c-basic-offset: 8
- * tab-width: 8
- * fill-column: 80
- * scroll-step: 1
- * End:
- */
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
deleted file mode 100644
index 4545d54f71c6..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
+++ /dev/null
@@ -1,200 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/linux/linux-debug.c
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-#include <linux/module.h>
-#include <linux/kmod.h>
-#include <linux/notifier.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <linux/interrupt.h>
-#include <linux/completion.h>
-#include <linux/fs.h>
-#include <linux/uaccess.h>
-#include <linux/miscdevice.h>
-
-# define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../../include/linux/libcfs/libcfs.h"
-
-#include "../tracefile.h"
-
-#include <linux/kallsyms.h>
-
-char lnet_upcall[1024] = "/usr/lib/lustre/lnet_upcall";
-char lnet_debug_log_upcall[1024] = "/usr/lib/lustre/lnet_debug_log_upcall";
-
-/**
- * Upcall function once a Lustre log has been dumped.
- *
- * \param file  path of the dumped log
- */
-void libcfs_run_debug_log_upcall(char *file)
-{
-	char *argv[3];
-	int   rc;
-	char *envp[] = {
-		"HOME=/",
-		"PATH=/sbin:/bin:/usr/sbin:/usr/bin",
-		NULL};
-
-	argv[0] = lnet_debug_log_upcall;
-
-	LASSERTF(file != NULL, "called on a null filename\n");
-	argv[1] = file; /* only need to pass the path of the file */
-
-	argv[2] = NULL;
-
-	rc = call_usermodehelper(argv[0], argv, envp, 1);
-	if (rc < 0 && rc != -ENOENT) {
-		CERROR("Error %d invoking LNET debug log upcall %s %s; check /proc/sys/lnet/debug_log_upcall\n",
-		       rc, argv[0], argv[1]);
-	} else {
-		CDEBUG(D_HA, "Invoked LNET debug log upcall %s %s\n",
-		       argv[0], argv[1]);
-	}
-}
-
-void libcfs_run_upcall(char **argv)
-{
-	int   rc;
-	int   argc;
-	char *envp[] = {
-		"HOME=/",
-		"PATH=/sbin:/bin:/usr/sbin:/usr/bin",
-		NULL};
-
-	argv[0] = lnet_upcall;
-	argc = 1;
-	while (argv[argc] != NULL)
-		argc++;
-
-	LASSERT(argc >= 2);
-
-	rc = call_usermodehelper(argv[0], argv, envp, 1);
-	if (rc < 0 && rc != -ENOENT) {
-		CERROR("Error %d invoking LNET upcall %s %s%s%s%s%s%s%s%s; check /proc/sys/lnet/upcall\n",
-		       rc, argv[0], argv[1],
-		       argc < 3 ? "" : ",", argc < 3 ? "" : argv[2],
-		       argc < 4 ? "" : ",", argc < 4 ? "" : argv[3],
-		       argc < 5 ? "" : ",", argc < 5 ? "" : argv[4],
-		       argc < 6 ? "" : ",...");
-	} else {
-		CDEBUG(D_HA, "Invoked LNET upcall %s %s%s%s%s%s%s%s%s\n",
-		       argv[0], argv[1],
-		       argc < 3 ? "" : ",", argc < 3 ? "" : argv[2],
-		       argc < 4 ? "" : ",", argc < 4 ? "" : argv[3],
-		       argc < 5 ? "" : ",", argc < 5 ? "" : argv[4],
-		       argc < 6 ? "" : ",...");
-	}
-}
-
-void libcfs_run_lbug_upcall(struct libcfs_debug_msg_data *msgdata)
-{
-	char *argv[6];
-	char buf[32];
-
-	snprintf(buf, sizeof(buf), "%d", msgdata->msg_line);
-
-	argv[1] = "LBUG";
-	argv[2] = (char *)msgdata->msg_file;
-	argv[3] = (char *)msgdata->msg_fn;
-	argv[4] = buf;
-	argv[5] = NULL;
-
-	libcfs_run_upcall (argv);
-}
-
-/* coverity[+kill] */
-void lbug_with_loc(struct libcfs_debug_msg_data *msgdata)
-{
-	libcfs_catastrophe = 1;
-	libcfs_debug_msg(msgdata, "LBUG\n");
-
-	if (in_interrupt()) {
-		panic("LBUG in interrupt.\n");
-		/* not reached */
-	}
-
-	dump_stack();
-	if (!libcfs_panic_on_lbug)
-		libcfs_debug_dumplog();
-	libcfs_run_lbug_upcall(msgdata);
-	if (libcfs_panic_on_lbug)
-		panic("LBUG");
-	set_task_state(current, TASK_UNINTERRUPTIBLE);
-	while (1)
-		schedule();
-}
-
-static int panic_notifier(struct notifier_block *self, unsigned long unused1,
-			 void *unused2)
-{
-	if (libcfs_panic_in_progress)
-		return 0;
-
-	libcfs_panic_in_progress = 1;
-	mb();
-
-	return 0;
-}
-
-static struct notifier_block libcfs_panic_notifier = {
-	.notifier_call	= panic_notifier,
-	.next		= NULL,
-	.priority	= 10000,
-};
-
-void libcfs_register_panic_notifier(void)
-{
-	atomic_notifier_chain_register(&panic_notifier_list, &libcfs_panic_notifier);
-}
-
-void libcfs_unregister_panic_notifier(void)
-{
-	atomic_notifier_chain_unregister(&panic_notifier_list, &libcfs_panic_notifier);
-}
-
-EXPORT_SYMBOL(libcfs_run_upcall);
-EXPORT_SYMBOL(libcfs_run_lbug_upcall);
-EXPORT_SYMBOL(lbug_with_loc);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-mem.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-mem.c
deleted file mode 100644
index 025e2f0028ab..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-mem.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- */
-/*
- * This file creates a memory allocation primitive for Lustre, that
- * allows to fallback to vmalloc allocations should regular kernel allocations
- * fail due to size or system memory fragmentation.
- *
- * Author: Oleg Drokin <green@linuxhacker.ru>
- *
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Seagate Technology.
- */
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-#include "../../../include/linux/libcfs/libcfs.h"
-
-void *libcfs_kvzalloc(size_t size, gfp_t flags)
-{
-	void *ret;
-
-	ret = kzalloc(size, flags | __GFP_NOWARN);
-	if (!ret)
-		ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
-	return ret;
-}
-EXPORT_SYMBOL(libcfs_kvzalloc);
-
-void *libcfs_kvzalloc_cpt(struct cfs_cpt_table *cptab, int cpt, size_t size,
-			  gfp_t flags)
-{
-	void *ret;
-
-	ret = kzalloc_node(size, flags | __GFP_NOWARN,
-			   cfs_cpt_spread_node(cptab, cpt));
-	if (!ret) {
-		WARN_ON(!(flags & (__GFP_FS|__GFP_HIGH)));
-		ret = vmalloc_node(size, cfs_cpt_spread_node(cptab, cpt));
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL(libcfs_kvzalloc_cpt);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
deleted file mode 100644
index 64a984b42845..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../../include/linux/libcfs/libcfs.h"
-
-#define LNET_MINOR 240
-
-int libcfs_ioctl_getdata(char *buf, char *end, void *arg)
-{
-	struct libcfs_ioctl_hdr   *hdr;
-	struct libcfs_ioctl_data  *data;
-	int orig_len;
-
-	hdr = (struct libcfs_ioctl_hdr *)buf;
-	data = (struct libcfs_ioctl_data *)buf;
-
-	if (copy_from_user(buf, arg, sizeof(*hdr)))
-		return -EFAULT;
-
-	if (hdr->ioc_version != LIBCFS_IOCTL_VERSION) {
-		CERROR("PORTALS: version mismatch kernel vs application\n");
-		return -EINVAL;
-	}
-
-	if (hdr->ioc_len >= end - buf) {
-		CERROR("PORTALS: user buffer exceeds kernel buffer\n");
-		return -EINVAL;
-	}
-
-
-	if (hdr->ioc_len < sizeof(struct libcfs_ioctl_data)) {
-		CERROR("PORTALS: user buffer too small for ioctl\n");
-		return -EINVAL;
-	}
-
-	orig_len = hdr->ioc_len;
-	if (copy_from_user(buf, arg, hdr->ioc_len))
-		return -EFAULT;
-	if (orig_len != data->ioc_len)
-		return -EINVAL;
-
-	if (libcfs_ioctl_is_invalid(data)) {
-		CERROR("PORTALS: ioctl not correctly formatted\n");
-		return -EINVAL;
-	}
-
-	if (data->ioc_inllen1)
-		data->ioc_inlbuf1 = &data->ioc_bulk[0];
-
-	if (data->ioc_inllen2)
-		data->ioc_inlbuf2 = &data->ioc_bulk[0] +
-			cfs_size_round(data->ioc_inllen1);
-
-	return 0;
-}
-
-int libcfs_ioctl_popdata(void *arg, void *data, int size)
-{
-	if (copy_to_user((char *)arg, data, size))
-		return -EFAULT;
-	return 0;
-}
-
-static int
-libcfs_psdev_open(struct inode *inode, struct file *file)
-{
-	struct libcfs_device_userstate **pdu = NULL;
-	int    rc = 0;
-
-	if (!inode)
-		return -EINVAL;
-	pdu = (struct libcfs_device_userstate **)&file->private_data;
-	if (libcfs_psdev_ops.p_open != NULL)
-		rc = libcfs_psdev_ops.p_open(0, (void *)pdu);
-	else
-		return -EPERM;
-	return rc;
-}
-
-/* called when closing /dev/device */
-static int
-libcfs_psdev_release(struct inode *inode, struct file *file)
-{
-	struct libcfs_device_userstate *pdu;
-	int    rc = 0;
-
-	if (!inode)
-		return -EINVAL;
-	pdu = file->private_data;
-	if (libcfs_psdev_ops.p_close != NULL)
-		rc = libcfs_psdev_ops.p_close(0, (void *)pdu);
-	else
-		rc = -EPERM;
-	return rc;
-}
-
-static long libcfs_ioctl(struct file *file,
-			 unsigned int cmd, unsigned long arg)
-{
-	struct cfs_psdev_file	 pfile;
-	int    rc = 0;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EACCES;
-
-	if (_IOC_TYPE(cmd) != IOC_LIBCFS_TYPE ||
-	     _IOC_NR(cmd) < IOC_LIBCFS_MIN_NR  ||
-	     _IOC_NR(cmd) > IOC_LIBCFS_MAX_NR) {
-		CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
-		       _IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
-		return -EINVAL;
-	}
-
-	/* Handle platform-dependent IOC requests */
-	switch (cmd) {
-	case IOC_LIBCFS_PANIC:
-		if (!capable(CFS_CAP_SYS_BOOT))
-			return -EPERM;
-		panic("debugctl-invoked panic");
-		return 0;
-	case IOC_LIBCFS_MEMHOG:
-		if (!capable(CFS_CAP_SYS_ADMIN))
-			return -EPERM;
-		/* go thought */
-	}
-
-	pfile.off = 0;
-	pfile.private_data = file->private_data;
-	if (libcfs_psdev_ops.p_ioctl != NULL)
-		rc = libcfs_psdev_ops.p_ioctl(&pfile, cmd, (void *)arg);
-	else
-		rc = -EPERM;
-	return rc;
-}
-
-static const struct file_operations libcfs_fops = {
-	.unlocked_ioctl	= libcfs_ioctl,
-	.open		= libcfs_psdev_open,
-	.release	= libcfs_psdev_release,
-};
-
-struct miscdevice libcfs_dev = {
-	.minor = LNET_MINOR,
-	.name = "lnet",
-	.fops = &libcfs_fops,
-};
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
deleted file mode 100644
index 838f5f3bd6af..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-prim.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/fs_struct.h>
-#include <linux/sched.h>
-
-#include "../../../include/linux/libcfs/libcfs.h"
-
-#if defined(CONFIG_KGDB)
-#include <linux/kgdb.h>
-#endif
-
-/**
- * wait_queue_t of Linux (version < 2.6.34) is a FIFO list for exclusively
- * waiting threads, which is not always desirable because all threads will
- * be waken up again and again, even user only needs a few of them to be
- * active most time. This is not good for performance because cache can
- * be polluted by different threads.
- *
- * LIFO list can resolve this problem because we always wakeup the most
- * recent active thread by default.
- *
- * NB: please don't call non-exclusive & exclusive wait on the same
- * waitq if add_wait_queue_exclusive_head is used.
- */
-void
-add_wait_queue_exclusive_head(wait_queue_head_t *waitq, wait_queue_t *link)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&waitq->lock, flags);
-	__add_wait_queue_exclusive(waitq, link);
-	spin_unlock_irqrestore(&waitq->lock, flags);
-}
-EXPORT_SYMBOL(add_wait_queue_exclusive_head);
-
-void cfs_init_timer(struct timer_list *t)
-{
-	init_timer(t);
-}
-EXPORT_SYMBOL(cfs_init_timer);
-
-void cfs_timer_init(struct timer_list *t, cfs_timer_func_t *func, void *arg)
-{
-	init_timer(t);
-	t->function = func;
-	t->data = (unsigned long)arg;
-}
-EXPORT_SYMBOL(cfs_timer_init);
-
-void cfs_timer_done(struct timer_list *t)
-{
-	return;
-}
-EXPORT_SYMBOL(cfs_timer_done);
-
-void cfs_timer_arm(struct timer_list *t, unsigned long deadline)
-{
-	mod_timer(t, deadline);
-}
-EXPORT_SYMBOL(cfs_timer_arm);
-
-void cfs_timer_disarm(struct timer_list *t)
-{
-	del_timer(t);
-}
-EXPORT_SYMBOL(cfs_timer_disarm);
-
-int  cfs_timer_is_armed(struct timer_list *t)
-{
-	return timer_pending(t);
-}
-EXPORT_SYMBOL(cfs_timer_is_armed);
-
-unsigned long cfs_timer_deadline(struct timer_list *t)
-{
-	return t->expires;
-}
-EXPORT_SYMBOL(cfs_timer_deadline);
-
-void cfs_enter_debugger(void)
-{
-#if defined(CONFIG_KGDB)
-	/* BREAKPOINT(); */
-#else
-	/* nothing */
-#endif
-}
-EXPORT_SYMBOL(cfs_enter_debugger);
-
-
-sigset_t
-cfs_block_allsigs(void)
-{
-	unsigned long	  flags;
-	sigset_t	old;
-
-	spin_lock_irqsave(&current->sighand->siglock, flags);
-	old = current->blocked;
-	sigfillset(&current->blocked);
-	recalc_sigpending();
-	spin_unlock_irqrestore(&current->sighand->siglock, flags);
-
-	return old;
-}
-EXPORT_SYMBOL(cfs_block_allsigs);
-
-sigset_t cfs_block_sigs(unsigned long sigs)
-{
-	unsigned long  flags;
-	sigset_t	old;
-
-	spin_lock_irqsave(&current->sighand->siglock, flags);
-	old = current->blocked;
-	sigaddsetmask(&current->blocked, sigs);
-	recalc_sigpending();
-	spin_unlock_irqrestore(&current->sighand->siglock, flags);
-	return old;
-}
-EXPORT_SYMBOL(cfs_block_sigs);
-
-/* Block all signals except for the @sigs */
-sigset_t cfs_block_sigsinv(unsigned long sigs)
-{
-	unsigned long flags;
-	sigset_t old;
-
-	spin_lock_irqsave(&current->sighand->siglock, flags);
-	old = current->blocked;
-	sigaddsetmask(&current->blocked, ~sigs);
-	recalc_sigpending();
-	spin_unlock_irqrestore(&current->sighand->siglock, flags);
-
-	return old;
-}
-EXPORT_SYMBOL(cfs_block_sigsinv);
-
-void
-cfs_restore_sigs(sigset_t old)
-{
-	unsigned long  flags;
-
-	spin_lock_irqsave(&current->sighand->siglock, flags);
-	current->blocked = old;
-	recalc_sigpending();
-	spin_unlock_irqrestore(&current->sighand->siglock, flags);
-}
-EXPORT_SYMBOL(cfs_restore_sigs);
-
-int
-cfs_signal_pending(void)
-{
-	return signal_pending(current);
-}
-EXPORT_SYMBOL(cfs_signal_pending);
-
-void
-cfs_clear_sigpending(void)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&current->sighand->siglock, flags);
-	clear_tsk_thread_flag(current, TIF_SIGPENDING);
-	spin_unlock_irqrestore(&current->sighand->siglock, flags);
-}
-EXPORT_SYMBOL(cfs_clear_sigpending);
-
-int
-libcfs_arch_init(void)
-{
-	return 0;
-}
-EXPORT_SYMBOL(libcfs_arch_init);
-
-void
-libcfs_arch_cleanup(void)
-{
-	return;
-}
-EXPORT_SYMBOL(libcfs_arch_cleanup);
-
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c
deleted file mode 100644
index eb10e3b478aa..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-#define LUSTRE_TRACEFILE_PRIVATE
-
-#include "../../../include/linux/libcfs/libcfs.h"
-#include "../tracefile.h"
-
-/* percents to share the total debug memory for each type */
-static unsigned int pages_factor[CFS_TCD_TYPE_MAX] = {
-	80,  /* 80% pages for CFS_TCD_TYPE_PROC */
-	10,  /* 10% pages for CFS_TCD_TYPE_SOFTIRQ */
-	10   /* 10% pages for CFS_TCD_TYPE_IRQ */
-};
-
-char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX];
-
-static DECLARE_RWSEM(cfs_tracefile_sem);
-
-int cfs_tracefile_init_arch(void)
-{
-	int    i;
-	int    j;
-	struct cfs_trace_cpu_data *tcd;
-
-	/* initialize trace_data */
-	memset(cfs_trace_data, 0, sizeof(cfs_trace_data));
-	for (i = 0; i < CFS_TCD_TYPE_MAX; i++) {
-		cfs_trace_data[i] =
-			kmalloc(sizeof(union cfs_trace_data_union) *
-				num_possible_cpus(), GFP_KERNEL);
-		if (cfs_trace_data[i] == NULL)
-			goto out;
-
-	}
-
-	/* arch related info initialized */
-	cfs_tcd_for_each(tcd, i, j) {
-		spin_lock_init(&tcd->tcd_lock);
-		tcd->tcd_pages_factor = pages_factor[i];
-		tcd->tcd_type = i;
-		tcd->tcd_cpu = j;
-	}
-
-	for (i = 0; i < num_possible_cpus(); i++)
-		for (j = 0; j < 3; j++) {
-			cfs_trace_console_buffers[i][j] =
-				kmalloc(CFS_TRACE_CONSOLE_BUFFER_SIZE,
-					GFP_KERNEL);
-
-			if (cfs_trace_console_buffers[i][j] == NULL)
-				goto out;
-		}
-
-	return 0;
-
-out:
-	cfs_tracefile_fini_arch();
-	printk(KERN_ERR "lnet: Not enough memory\n");
-	return -ENOMEM;
-}
-
-void cfs_tracefile_fini_arch(void)
-{
-	int    i;
-	int    j;
-
-	for (i = 0; i < num_possible_cpus(); i++)
-		for (j = 0; j < 3; j++) {
-			kfree(cfs_trace_console_buffers[i][j]);
-			cfs_trace_console_buffers[i][j] = NULL;
-		}
-
-	for (i = 0; cfs_trace_data[i] != NULL; i++) {
-		kfree(cfs_trace_data[i]);
-		cfs_trace_data[i] = NULL;
-	}
-}
-
-void cfs_tracefile_read_lock(void)
-{
-	down_read(&cfs_tracefile_sem);
-}
-
-void cfs_tracefile_read_unlock(void)
-{
-	up_read(&cfs_tracefile_sem);
-}
-
-void cfs_tracefile_write_lock(void)
-{
-	down_write(&cfs_tracefile_sem);
-}
-
-void cfs_tracefile_write_unlock(void)
-{
-	up_write(&cfs_tracefile_sem);
-}
-
-cfs_trace_buf_type_t cfs_trace_buf_idx_get(void)
-{
-	if (in_irq())
-		return CFS_TCD_TYPE_IRQ;
-	else if (in_softirq())
-		return CFS_TCD_TYPE_SOFTIRQ;
-	else
-		return CFS_TCD_TYPE_PROC;
-}
-
-/*
- * The walking argument indicates the locking comes from all tcd types
- * iterator and we must lock it and dissable local irqs to avoid deadlocks
- * with other interrupt locks that might be happening. See LU-1311
- * for details.
- */
-int cfs_trace_lock_tcd(struct cfs_trace_cpu_data *tcd, int walking)
-	__acquires(&tcd->tc_lock)
-{
-	__LASSERT(tcd->tcd_type < CFS_TCD_TYPE_MAX);
-	if (tcd->tcd_type == CFS_TCD_TYPE_IRQ)
-		spin_lock_irqsave(&tcd->tcd_lock, tcd->tcd_lock_flags);
-	else if (tcd->tcd_type == CFS_TCD_TYPE_SOFTIRQ)
-		spin_lock_bh(&tcd->tcd_lock);
-	else if (unlikely(walking))
-		spin_lock_irq(&tcd->tcd_lock);
-	else
-		spin_lock(&tcd->tcd_lock);
-	return 1;
-}
-
-void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd, int walking)
-	__releases(&tcd->tcd_lock)
-{
-	__LASSERT(tcd->tcd_type < CFS_TCD_TYPE_MAX);
-	if (tcd->tcd_type == CFS_TCD_TYPE_IRQ)
-		spin_unlock_irqrestore(&tcd->tcd_lock, tcd->tcd_lock_flags);
-	else if (tcd->tcd_type == CFS_TCD_TYPE_SOFTIRQ)
-		spin_unlock_bh(&tcd->tcd_lock);
-	else if (unlikely(walking))
-		spin_unlock_irq(&tcd->tcd_lock);
-	else
-		spin_unlock(&tcd->tcd_lock);
-}
-
-int cfs_tcd_owns_tage(struct cfs_trace_cpu_data *tcd,
-		      struct cfs_trace_page *tage)
-{
-	/*
-	 * XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
-	 * from here: this will lead to infinite recursion.
-	 */
-	return tcd->tcd_cpu == tage->cpu;
-}
-
-void
-cfs_set_ptldebug_header(struct ptldebug_header *header,
-			struct libcfs_debug_msg_data *msgdata,
-			unsigned long stack)
-{
-	struct timeval tv;
-
-	do_gettimeofday(&tv);
-
-	header->ph_subsys = msgdata->msg_subsys;
-	header->ph_mask = msgdata->msg_mask;
-	header->ph_cpu_id = smp_processor_id();
-	header->ph_type = cfs_trace_buf_idx_get();
-	header->ph_sec = (__u32)tv.tv_sec;
-	header->ph_usec = tv.tv_usec;
-	header->ph_stack = stack;
-	header->ph_pid = current->pid;
-	header->ph_line_num = msgdata->msg_line;
-	header->ph_extern_pid = 0;
-	return;
-}
-
-static char *
-dbghdr_to_err_string(struct ptldebug_header *hdr)
-{
-	switch (hdr->ph_subsys) {
-
-		case S_LND:
-		case S_LNET:
-			return "LNetError";
-		default:
-			return "LustreError";
-	}
-}
-
-static char *
-dbghdr_to_info_string(struct ptldebug_header *hdr)
-{
-	switch (hdr->ph_subsys) {
-
-		case S_LND:
-		case S_LNET:
-			return "LNet";
-		default:
-			return "Lustre";
-	}
-}
-
-void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
-			  const char *buf, int len, const char *file,
-			  const char *fn)
-{
-	char *prefix = "Lustre", *ptype = NULL;
-
-	if ((mask & D_EMERG) != 0) {
-		prefix = dbghdr_to_err_string(hdr);
-		ptype = KERN_EMERG;
-	} else if ((mask & D_ERROR) != 0) {
-		prefix = dbghdr_to_err_string(hdr);
-		ptype = KERN_ERR;
-	} else if ((mask & D_WARNING) != 0) {
-		prefix = dbghdr_to_info_string(hdr);
-		ptype = KERN_WARNING;
-	} else if ((mask & (D_CONSOLE | libcfs_printk)) != 0) {
-		prefix = dbghdr_to_info_string(hdr);
-		ptype = KERN_INFO;
-	}
-
-	if ((mask & D_CONSOLE) != 0) {
-		printk("%s%s: %.*s", ptype, prefix, len, buf);
-	} else {
-		printk("%s%s: %d:%d:(%s:%d:%s()) %.*s", ptype, prefix,
-		       hdr->ph_pid, hdr->ph_extern_pid, file, hdr->ph_line_num,
-		       fn, len, buf);
-	}
-	return;
-}
-
-int cfs_trace_max_debug_mb(void)
-{
-	int  total_mb = (totalram_pages >> (20 - PAGE_SHIFT));
-
-	return max(512, (total_mb * 80)/100);
-}
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.h b/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.h
deleted file mode 100644
index ba84e4ffddd1..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LIBCFS_LINUX_TRACEFILE_H__
-#define __LIBCFS_LINUX_TRACEFILE_H__
-
-/**
- * three types of trace_data in linux
- */
-typedef enum {
-	CFS_TCD_TYPE_PROC = 0,
-	CFS_TCD_TYPE_SOFTIRQ,
-	CFS_TCD_TYPE_IRQ,
-	CFS_TCD_TYPE_MAX
-} cfs_trace_buf_type_t;
-
-#endif
diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
deleted file mode 100644
index 806f9747a3a2..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/module.c
+++ /dev/null
@@ -1,795 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <net/sock.h>
-#include <linux/uio.h>
-
-#include <linux/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/list.h>
-
-#include <linux/sysctl.h>
-#include <linux/debugfs.h>
-
-# define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include <asm/div64.h>
-
-#include "../../include/linux/libcfs/libcfs_crypto.h"
-#include "../../include/linux/lnet/lib-lnet.h"
-#include "../../include/linux/lnet/lnet.h"
-#include "tracefile.h"
-
-MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
-MODULE_DESCRIPTION("Portals v3.1");
-MODULE_LICENSE("GPL");
-
-static void insert_debugfs(void);
-static void remove_debugfs(void);
-
-static struct dentry *lnet_debugfs_root;
-
-static void kportal_memhog_free(struct libcfs_device_userstate *ldu)
-{
-	struct page **level0p = &ldu->ldu_memhog_root_page;
-	struct page **level1p;
-	struct page **level2p;
-	int	   count1;
-	int	   count2;
-
-	if (*level0p != NULL) {
-
-		level1p = (struct page **)page_address(*level0p);
-		count1 = 0;
-
-		while (count1 < PAGE_CACHE_SIZE/sizeof(struct page *) &&
-		       *level1p != NULL) {
-
-			level2p = (struct page **)page_address(*level1p);
-			count2 = 0;
-
-			while (count2 < PAGE_CACHE_SIZE/sizeof(struct page *) &&
-			       *level2p != NULL) {
-
-				__free_page(*level2p);
-				ldu->ldu_memhog_pages--;
-				level2p++;
-				count2++;
-			}
-
-			__free_page(*level1p);
-			ldu->ldu_memhog_pages--;
-			level1p++;
-			count1++;
-		}
-
-		__free_page(*level0p);
-		ldu->ldu_memhog_pages--;
-
-		*level0p = NULL;
-	}
-
-	LASSERT(ldu->ldu_memhog_pages == 0);
-}
-
-static int kportal_memhog_alloc(struct libcfs_device_userstate *ldu, int npages,
-		     gfp_t flags)
-{
-	struct page **level0p;
-	struct page **level1p;
-	struct page **level2p;
-	int	   count1;
-	int	   count2;
-
-	LASSERT(ldu->ldu_memhog_pages == 0);
-	LASSERT(ldu->ldu_memhog_root_page == NULL);
-
-	if (npages < 0)
-		return -EINVAL;
-
-	if (npages == 0)
-		return 0;
-
-	level0p = &ldu->ldu_memhog_root_page;
-	*level0p = alloc_page(flags);
-	if (*level0p == NULL)
-		return -ENOMEM;
-	ldu->ldu_memhog_pages++;
-
-	level1p = (struct page **)page_address(*level0p);
-	count1 = 0;
-	memset(level1p, 0, PAGE_CACHE_SIZE);
-
-	while (ldu->ldu_memhog_pages < npages &&
-	       count1 < PAGE_CACHE_SIZE/sizeof(struct page *)) {
-
-		if (cfs_signal_pending())
-			return -EINTR;
-
-		*level1p = alloc_page(flags);
-		if (*level1p == NULL)
-			return -ENOMEM;
-		ldu->ldu_memhog_pages++;
-
-		level2p = (struct page **)page_address(*level1p);
-		count2 = 0;
-		memset(level2p, 0, PAGE_CACHE_SIZE);
-
-		while (ldu->ldu_memhog_pages < npages &&
-		       count2 < PAGE_CACHE_SIZE/sizeof(struct page *)) {
-
-			if (cfs_signal_pending())
-				return -EINTR;
-
-			*level2p = alloc_page(flags);
-			if (*level2p == NULL)
-				return -ENOMEM;
-			ldu->ldu_memhog_pages++;
-
-			level2p++;
-			count2++;
-		}
-
-		level1p++;
-		count1++;
-	}
-
-	return 0;
-}
-
-/* called when opening /dev/device */
-static int libcfs_psdev_open(unsigned long flags, void *args)
-{
-	struct libcfs_device_userstate *ldu;
-
-	try_module_get(THIS_MODULE);
-
-	LIBCFS_ALLOC(ldu, sizeof(*ldu));
-	if (ldu != NULL) {
-		ldu->ldu_memhog_pages = 0;
-		ldu->ldu_memhog_root_page = NULL;
-	}
-	*(struct libcfs_device_userstate **)args = ldu;
-
-	return 0;
-}
-
-/* called when closing /dev/device */
-static int libcfs_psdev_release(unsigned long flags, void *args)
-{
-	struct libcfs_device_userstate *ldu;
-
-	ldu = (struct libcfs_device_userstate *)args;
-	if (ldu != NULL) {
-		kportal_memhog_free(ldu);
-		LIBCFS_FREE(ldu, sizeof(*ldu));
-	}
-
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-static DECLARE_RWSEM(ioctl_list_sem);
-static LIST_HEAD(ioctl_list);
-
-int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand)
-{
-	int rc = 0;
-
-	down_write(&ioctl_list_sem);
-	if (!list_empty(&hand->item))
-		rc = -EBUSY;
-	else
-		list_add_tail(&hand->item, &ioctl_list);
-	up_write(&ioctl_list_sem);
-
-	return rc;
-}
-EXPORT_SYMBOL(libcfs_register_ioctl);
-
-int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand)
-{
-	int rc = 0;
-
-	down_write(&ioctl_list_sem);
-	if (list_empty(&hand->item))
-		rc = -ENOENT;
-	else
-		list_del_init(&hand->item);
-	up_write(&ioctl_list_sem);
-
-	return rc;
-}
-EXPORT_SYMBOL(libcfs_deregister_ioctl);
-
-static int libcfs_ioctl_int(struct cfs_psdev_file *pfile, unsigned long cmd,
-			    void *arg, struct libcfs_ioctl_data *data)
-{
-	int err = -EINVAL;
-
-	switch (cmd) {
-	case IOC_LIBCFS_CLEAR_DEBUG:
-		libcfs_debug_clear_buffer();
-		return 0;
-	/*
-	 * case IOC_LIBCFS_PANIC:
-	 * Handled in arch/cfs_module.c
-	 */
-	case IOC_LIBCFS_MARK_DEBUG:
-		if (data->ioc_inlbuf1 == NULL ||
-		    data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0')
-			return -EINVAL;
-		libcfs_debug_mark_buffer(data->ioc_inlbuf1);
-		return 0;
-	case IOC_LIBCFS_MEMHOG:
-		if (pfile->private_data == NULL) {
-			err = -EINVAL;
-		} else {
-			kportal_memhog_free(pfile->private_data);
-			/* XXX The ioc_flags is not GFP flags now, need to be fixed */
-			err = kportal_memhog_alloc(pfile->private_data,
-						   data->ioc_count,
-						   data->ioc_flags);
-			if (err != 0)
-				kportal_memhog_free(pfile->private_data);
-		}
-		break;
-
-	case IOC_LIBCFS_PING_TEST: {
-		extern void (kping_client)(struct libcfs_ioctl_data *);
-		void (*ping)(struct libcfs_ioctl_data *);
-
-		CDEBUG(D_IOCTL, "doing %d pings to nid %s (%s)\n",
-		       data->ioc_count, libcfs_nid2str(data->ioc_nid),
-		       libcfs_nid2str(data->ioc_nid));
-		ping = symbol_get(kping_client);
-		if (!ping)
-			CERROR("symbol_get failed\n");
-		else {
-			ping(data);
-			symbol_put(kping_client);
-		}
-		return 0;
-	}
-
-	default: {
-		struct libcfs_ioctl_handler *hand;
-		err = -EINVAL;
-		down_read(&ioctl_list_sem);
-		list_for_each_entry(hand, &ioctl_list, item) {
-			err = hand->handle_ioctl(cmd, data);
-			if (err != -EINVAL) {
-				if (err == 0)
-					err = libcfs_ioctl_popdata(arg,
-							data, sizeof(*data));
-				break;
-			}
-		}
-		up_read(&ioctl_list_sem);
-		break;
-	}
-	}
-
-	return err;
-}
-
-static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, void *arg)
-{
-	char    *buf;
-	struct libcfs_ioctl_data *data;
-	int err = 0;
-
-	LIBCFS_ALLOC_GFP(buf, 1024, GFP_IOFS);
-	if (buf == NULL)
-		return -ENOMEM;
-
-	/* 'cmd' and permissions get checked in our arch-specific caller */
-	if (libcfs_ioctl_getdata(buf, buf + 800, arg)) {
-		CERROR("PORTALS ioctl: data error\n");
-		err = -EINVAL;
-		goto out;
-	}
-	data = (struct libcfs_ioctl_data *)buf;
-
-	err = libcfs_ioctl_int(pfile, cmd, arg, data);
-
-out:
-	LIBCFS_FREE(buf, 1024);
-	return err;
-}
-
-
-struct cfs_psdev_ops libcfs_psdev_ops = {
-	libcfs_psdev_open,
-	libcfs_psdev_release,
-	NULL,
-	NULL,
-	libcfs_ioctl
-};
-
-static int init_libcfs_module(void)
-{
-	int rc;
-
-	libcfs_arch_init();
-	libcfs_init_nidstrings();
-
-	rc = libcfs_debug_init(5 * 1024 * 1024);
-	if (rc < 0) {
-		pr_err("LustreError: libcfs_debug_init: %d\n", rc);
-		return rc;
-	}
-
-	rc = cfs_cpu_init();
-	if (rc != 0)
-		goto cleanup_debug;
-
-	rc = misc_register(&libcfs_dev);
-	if (rc) {
-		CERROR("misc_register: error %d\n", rc);
-		goto cleanup_cpu;
-	}
-
-	rc = cfs_wi_startup();
-	if (rc) {
-		CERROR("initialize workitem: error %d\n", rc);
-		goto cleanup_deregister;
-	}
-
-	/* max to 4 threads, should be enough for rehash */
-	rc = min(cfs_cpt_weight(cfs_cpt_table, CFS_CPT_ANY), 4);
-	rc = cfs_wi_sched_create("cfs_rh", cfs_cpt_table, CFS_CPT_ANY,
-				 rc, &cfs_sched_rehash);
-	if (rc != 0) {
-		CERROR("Startup workitem scheduler: error: %d\n", rc);
-		goto cleanup_deregister;
-	}
-
-	rc = cfs_crypto_register();
-	if (rc) {
-		CERROR("cfs_crypto_register: error %d\n", rc);
-		goto cleanup_wi;
-	}
-
-	insert_debugfs();
-
-	CDEBUG(D_OTHER, "portals setup OK\n");
-	return 0;
- cleanup_wi:
-	cfs_wi_shutdown();
- cleanup_deregister:
-	misc_deregister(&libcfs_dev);
-cleanup_cpu:
-	cfs_cpu_fini();
- cleanup_debug:
-	libcfs_debug_cleanup();
-	return rc;
-}
-
-static void exit_libcfs_module(void)
-{
-	int rc;
-
-	remove_debugfs();
-
-	if (cfs_sched_rehash != NULL) {
-		cfs_wi_sched_destroy(cfs_sched_rehash);
-		cfs_sched_rehash = NULL;
-	}
-
-	cfs_crypto_unregister();
-	cfs_wi_shutdown();
-
-	misc_deregister(&libcfs_dev);
-
-	cfs_cpu_fini();
-
-	rc = libcfs_debug_cleanup();
-	if (rc)
-		pr_err("LustreError: libcfs_debug_cleanup: %d\n", rc);
-
-	libcfs_arch_cleanup();
-}
-
-static int proc_call_handler(void *data, int write, loff_t *ppos,
-		void __user *buffer, size_t *lenp,
-		int (*handler)(void *data, int write,
-		loff_t pos, void __user *buffer, int len))
-{
-	int rc = handler(data, write, *ppos, buffer, *lenp);
-
-	if (rc < 0)
-		return rc;
-
-	if (write) {
-		*ppos += *lenp;
-	} else {
-		*lenp = rc;
-		*ppos += rc;
-	}
-	return 0;
-}
-
-static int __proc_dobitmasks(void *data, int write,
-			     loff_t pos, void __user *buffer, int nob)
-{
-	const int     tmpstrlen = 512;
-	char	 *tmpstr;
-	int	   rc;
-	unsigned int *mask = data;
-	int	   is_subsys = (mask == &libcfs_subsystem_debug) ? 1 : 0;
-	int	   is_printk = (mask == &libcfs_printk) ? 1 : 0;
-
-	rc = cfs_trace_allocate_string_buffer(&tmpstr, tmpstrlen);
-	if (rc < 0)
-		return rc;
-
-	if (!write) {
-		libcfs_debug_mask2str(tmpstr, tmpstrlen, *mask, is_subsys);
-		rc = strlen(tmpstr);
-
-		if (pos >= rc) {
-			rc = 0;
-		} else {
-			rc = cfs_trace_copyout_string(buffer, nob,
-						      tmpstr + pos, "\n");
-		}
-	} else {
-		rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
-		if (rc < 0) {
-			cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
-			return rc;
-		}
-
-		rc = libcfs_debug_str2mask(mask, tmpstr, is_subsys);
-		/* Always print LBUG/LASSERT to console, so keep this mask */
-		if (is_printk)
-			*mask |= D_EMERG;
-	}
-
-	cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
-	return rc;
-}
-
-static int proc_dobitmasks(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_dobitmasks);
-}
-
-static int __proc_dump_kernel(void *data, int write,
-			      loff_t pos, void __user *buffer, int nob)
-{
-	if (!write)
-		return 0;
-
-	return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
-}
-
-static int proc_dump_kernel(struct ctl_table *table, int write,
-			    void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_dump_kernel);
-}
-
-static int __proc_daemon_file(void *data, int write,
-			      loff_t pos, void __user *buffer, int nob)
-{
-	if (!write) {
-		int len = strlen(cfs_tracefile);
-
-		if (pos >= len)
-			return 0;
-
-		return cfs_trace_copyout_string(buffer, nob,
-						cfs_tracefile + pos, "\n");
-	}
-
-	return cfs_trace_daemon_command_usrstr(buffer, nob);
-}
-
-static int proc_daemon_file(struct ctl_table *table, int write,
-			    void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_daemon_file);
-}
-
-static int libcfs_force_lbug(struct ctl_table *table, int write,
-			     void __user *buffer,
-			     size_t *lenp, loff_t *ppos)
-{
-	if (write)
-		LBUG();
-	return 0;
-}
-
-static int proc_fail_loc(struct ctl_table *table, int write,
-			 void __user *buffer,
-			 size_t *lenp, loff_t *ppos)
-{
-	int rc;
-	long old_fail_loc = cfs_fail_loc;
-
-	rc = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
-	if (old_fail_loc != cfs_fail_loc)
-		wake_up(&cfs_race_waitq);
-	return rc;
-}
-
-static int __proc_cpt_table(void *data, int write,
-			    loff_t pos, void __user *buffer, int nob)
-{
-	char *buf = NULL;
-	int   len = 4096;
-	int   rc  = 0;
-
-	if (write)
-		return -EPERM;
-
-	LASSERT(cfs_cpt_table != NULL);
-
-	while (1) {
-		LIBCFS_ALLOC(buf, len);
-		if (buf == NULL)
-			return -ENOMEM;
-
-		rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
-		if (rc >= 0)
-			break;
-
-		if (rc == -EFBIG) {
-			LIBCFS_FREE(buf, len);
-			len <<= 1;
-			continue;
-		}
-		goto out;
-	}
-
-	if (pos >= rc) {
-		rc = 0;
-		goto out;
-	}
-
-	rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
- out:
-	if (buf != NULL)
-		LIBCFS_FREE(buf, len);
-	return rc;
-}
-
-static int proc_cpt_table(struct ctl_table *table, int write,
-			   void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	return proc_call_handler(table->data, write, ppos, buffer, lenp,
-				 __proc_cpt_table);
-}
-
-static struct ctl_table lnet_table[] = {
-	/*
-	 * NB No .strategy entries have been provided since sysctl(8) prefers
-	 * to go via /proc for portability.
-	 */
-	{
-		.procname = "debug",
-		.data     = &libcfs_debug,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dobitmasks,
-	},
-	{
-		.procname = "subsystem_debug",
-		.data     = &libcfs_subsystem_debug,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dobitmasks,
-	},
-	{
-		.procname = "printk",
-		.data     = &libcfs_printk,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dobitmasks,
-	},
-	{
-		.procname = "cpu_partition_table",
-		.maxlen   = 128,
-		.mode     = 0444,
-		.proc_handler = &proc_cpt_table,
-	},
-
-	{
-		.procname = "upcall",
-		.data     = lnet_upcall,
-		.maxlen   = sizeof(lnet_upcall),
-		.mode     = 0644,
-		.proc_handler = &proc_dostring,
-	},
-	{
-		.procname = "debug_log_upcall",
-		.data     = lnet_debug_log_upcall,
-		.maxlen   = sizeof(lnet_debug_log_upcall),
-		.mode     = 0644,
-		.proc_handler = &proc_dostring,
-	},
-	{
-		.procname = "catastrophe",
-		.data     = &libcfs_catastrophe,
-		.maxlen   = sizeof(int),
-		.mode     = 0444,
-		.proc_handler = &proc_dointvec,
-	},
-	{
-		.procname = "dump_kernel",
-		.maxlen   = 256,
-		.mode     = 0200,
-		.proc_handler = &proc_dump_kernel,
-	},
-	{
-		.procname = "daemon_file",
-		.mode     = 0644,
-		.maxlen   = 256,
-		.proc_handler = &proc_daemon_file,
-	},
-	{
-		.procname = "force_lbug",
-		.data     = NULL,
-		.maxlen   = 0,
-		.mode     = 0200,
-		.proc_handler = &libcfs_force_lbug
-	},
-	{
-		.procname = "fail_loc",
-		.data     = &cfs_fail_loc,
-		.maxlen   = sizeof(cfs_fail_loc),
-		.mode     = 0644,
-		.proc_handler = &proc_fail_loc
-	},
-	{
-		.procname = "fail_val",
-		.data     = &cfs_fail_val,
-		.maxlen   = sizeof(int),
-		.mode     = 0644,
-		.proc_handler = &proc_dointvec
-	},
-	{
-	}
-};
-
-struct lnet_debugfs_symlink_def {
-	char *name;
-	char *target;
-};
-
-static const struct lnet_debugfs_symlink_def lnet_debugfs_symlinks[] = {
-	{ "console_ratelimit",
-	  "/sys/module/libcfs/parameters/libcfs_console_ratelimit"},
-	{ "debug_path",
-	  "/sys/module/libcfs/parameters/libcfs_debug_file_path"},
-	{ "panic_on_lbug",
-	  "/sys/module/libcfs/parameters/libcfs_panic_on_lbug"},
-	{ "libcfs_console_backoff",
-	  "/sys/module/libcfs/parameters/libcfs_console_backoff"},
-	{ "debug_mb",
-	  "/sys/module/libcfs/parameters/libcfs_debug_mb"},
-	{ "console_min_delay_centisecs",
-	  "/sys/module/libcfs/parameters/libcfs_console_min_delay"},
-	{ "console_max_delay_centisecs",
-	  "/sys/module/libcfs/parameters/libcfs_console_max_delay"},
-	{},
-};
-
-static ssize_t lnet_debugfs_read(struct file *filp, char __user *buf,
-				 size_t count, loff_t *ppos)
-{
-	struct ctl_table *table = filp->private_data;
-	int error;
-
-	error = table->proc_handler(table, 0, (void __user *)buf, &count, ppos);
-	if (!error)
-		error = count;
-
-	return error;
-}
-
-static ssize_t lnet_debugfs_write(struct file *filp, const char __user *buf,
-				  size_t count, loff_t *ppos)
-{
-	struct ctl_table *table = filp->private_data;
-	int error;
-
-	error = table->proc_handler(table, 1, (void __user *)buf, &count, ppos);
-	if (!error)
-		error = count;
-
-	return error;
-}
-
-static const struct file_operations lnet_debugfs_file_operations = {
-	.open		= simple_open,
-	.read		= lnet_debugfs_read,
-	.write		= lnet_debugfs_write,
-	.llseek		= default_llseek,
-};
-
-static void insert_debugfs(void)
-{
-	struct ctl_table *table;
-	struct dentry *entry;
-	const struct lnet_debugfs_symlink_def *symlinks;
-
-	if (lnet_debugfs_root == NULL)
-		lnet_debugfs_root = debugfs_create_dir("lnet", NULL);
-
-	/* Even if we cannot create, just ignore it altogether) */
-	if (IS_ERR_OR_NULL(lnet_debugfs_root))
-		return;
-
-	for (table = lnet_table; table->procname; table++)
-		entry = debugfs_create_file(table->procname, table->mode,
-					    lnet_debugfs_root, table,
-					    &lnet_debugfs_file_operations);
-
-	for (symlinks = lnet_debugfs_symlinks; symlinks->name; symlinks++)
-		entry = debugfs_create_symlink(symlinks->name,
-					       lnet_debugfs_root,
-					       symlinks->target);
-
-}
-
-static void remove_debugfs(void)
-{
-	if (lnet_debugfs_root != NULL)
-		debugfs_remove_recursive(lnet_debugfs_root);
-
-	lnet_debugfs_root = NULL;
-}
-
-MODULE_VERSION("1.0.0");
-
-module_init(init_libcfs_module);
-module_exit(exit_libcfs_module);
diff --git a/drivers/staging/lustre/lustre/libcfs/nidstrings.c b/drivers/staging/lustre/lustre/libcfs/nidstrings.c
deleted file mode 100644
index 087449f4e6c1..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/nidstrings.c
+++ /dev/null
@@ -1,842 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/nidstrings.c
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../../include/linux/lnet/lnet.h"
-
-/* CAVEAT VENDITOR! Keep the canonical string representation of nets/nids
- * consistent in all conversion functions.  Some code fragments are copied
- * around for the sake of clarity...
- */
-
-/* CAVEAT EMPTOR! Racey temporary buffer allocation!
- * Choose the number of nidstrings to support the MAXIMUM expected number of
- * concurrent users.  If there are more, the returned string will be volatile.
- * NB this number must allow for a process to be descheduled for a timeslice
- * between getting its string and using it.
- */
-
-static char      libcfs_nidstrings[LNET_NIDSTR_COUNT][LNET_NIDSTR_SIZE];
-static int       libcfs_nidstring_idx;
-
-static spinlock_t libcfs_nidstring_lock;
-
-void libcfs_init_nidstrings(void)
-{
-	spin_lock_init(&libcfs_nidstring_lock);
-}
-
-static char *
-libcfs_next_nidstring(void)
-{
-	char	  *str;
-	unsigned long  flags;
-
-	spin_lock_irqsave(&libcfs_nidstring_lock, flags);
-
-	str = libcfs_nidstrings[libcfs_nidstring_idx++];
-	if (libcfs_nidstring_idx == ARRAY_SIZE(libcfs_nidstrings))
-		libcfs_nidstring_idx = 0;
-
-	spin_unlock_irqrestore(&libcfs_nidstring_lock, flags);
-	return str;
-}
-
-static int libcfs_lo_str2addr(const char *str, int nob, __u32 *addr)
-{
-	*addr = 0;
-	return 1;
-}
-
-static void libcfs_ip_addr2str(__u32 addr, char *str)
-{
-	snprintf(str, LNET_NIDSTR_SIZE, "%u.%u.%u.%u",
-		 (addr >> 24) & 0xff, (addr >> 16) & 0xff,
-		 (addr >> 8) & 0xff, addr & 0xff);
-}
-
-static int libcfs_ip_str2addr(const char *str, int nob, __u32 *addr)
-{
-	unsigned int	a;
-	unsigned int	b;
-	unsigned int	c;
-	unsigned int	d;
-	int		n = nob; /* XscanfX */
-
-	/* numeric IP? */
-	if (sscanf(str, "%u.%u.%u.%u%n", &a, &b, &c, &d, &n) >= 4 &&
-	    n == nob &&
-	    (a & ~0xff) == 0 && (b & ~0xff) == 0 &&
-	    (c & ~0xff) == 0 && (d & ~0xff) == 0) {
-		*addr = ((a<<24)|(b<<16)|(c<<8)|d);
-		return 1;
-	}
-
-	return 0;
-}
-
-static void libcfs_decnum_addr2str(__u32 addr, char *str)
-{
-	snprintf(str, LNET_NIDSTR_SIZE, "%u", addr);
-}
-
-static void libcfs_hexnum_addr2str(__u32 addr, char *str)
-{
-	snprintf(str, LNET_NIDSTR_SIZE, "0x%x", addr);
-}
-
-static int libcfs_num_str2addr(const char *str, int nob, __u32 *addr)
-{
-	int     n;
-
-	n = nob;
-	if (sscanf(str, "0x%x%n", addr, &n) >= 1 && n == nob)
-		return 1;
-
-	n = nob;
-	if (sscanf(str, "0X%x%n", addr, &n) >= 1 && n == nob)
-		return 1;
-
-	n = nob;
-	if (sscanf(str, "%u%n", addr, &n) >= 1 && n == nob)
-		return 1;
-
-	return 0;
-}
-
-/**
- * Nf_parse_addrlist method for networks using numeric addresses.
- *
- * Examples of such networks are gm and elan.
- *
- * \retval 0 if \a str parsed to numeric address
- * \retval errno otherwise
- */
-static int
-libcfs_num_parse(char *str, int len, struct list_head *list)
-{
-	struct cfs_expr_list *el;
-	int	rc;
-
-	rc = cfs_expr_list_parse(str, len, 0, MAX_NUMERIC_VALUE, &el);
-	if (rc == 0)
-		list_add_tail(&el->el_link, list);
-
-	return rc;
-}
-
-/*
- * Nf_match_addr method for networks using numeric addresses
- *
- * \retval 1 on match
- * \retval 0 otherwise
- */
-static int
-libcfs_num_match(__u32 addr, struct list_head *numaddr)
-{
-	struct cfs_expr_list *el;
-
-	LASSERT(!list_empty(numaddr));
-	el = list_entry(numaddr->next, struct cfs_expr_list, el_link);
-
-	return cfs_expr_list_match(addr, el);
-}
-
-struct netstrfns {
-	int	  nf_type;
-	char	*nf_name;
-	char	*nf_modname;
-	void       (*nf_addr2str)(__u32 addr, char *str);
-	int	(*nf_str2addr)(const char *str, int nob, __u32 *addr);
-	int	(*nf_parse_addrlist)(char *str, int len,
-					struct list_head *list);
-	int	(*nf_match_addr)(__u32 addr, struct list_head *list);
-};
-
-static struct netstrfns  libcfs_netstrfns[] = {
-	{/* .nf_type      */  LOLND,
-	 /* .nf_name      */  "lo",
-	 /* .nf_modname   */  "klolnd",
-	 /* .nf_addr2str  */  libcfs_decnum_addr2str,
-	 /* .nf_str2addr  */  libcfs_lo_str2addr,
-	 /* .nf_parse_addr*/  libcfs_num_parse,
-	 /* .nf_match_addr*/  libcfs_num_match},
-	{/* .nf_type      */  SOCKLND,
-	 /* .nf_name      */  "tcp",
-	 /* .nf_modname   */  "ksocklnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  O2IBLND,
-	 /* .nf_name      */  "o2ib",
-	 /* .nf_modname   */  "ko2iblnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  CIBLND,
-	 /* .nf_name      */  "cib",
-	 /* .nf_modname   */  "kciblnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  OPENIBLND,
-	 /* .nf_name      */  "openib",
-	 /* .nf_modname   */  "kopeniblnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  IIBLND,
-	 /* .nf_name      */  "iib",
-	 /* .nf_modname   */  "kiiblnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  VIBLND,
-	 /* .nf_name      */  "vib",
-	 /* .nf_modname   */  "kviblnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  RALND,
-	 /* .nf_name      */  "ra",
-	 /* .nf_modname   */  "kralnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  QSWLND,
-	 /* .nf_name      */  "elan",
-	 /* .nf_modname   */  "kqswlnd",
-	 /* .nf_addr2str  */  libcfs_decnum_addr2str,
-	 /* .nf_str2addr  */  libcfs_num_str2addr,
-	 /* .nf_parse_addrlist*/  libcfs_num_parse,
-	 /* .nf_match_addr*/  libcfs_num_match},
-	{/* .nf_type      */  GMLND,
-	 /* .nf_name      */  "gm",
-	 /* .nf_modname   */  "kgmlnd",
-	 /* .nf_addr2str  */  libcfs_hexnum_addr2str,
-	 /* .nf_str2addr  */  libcfs_num_str2addr,
-	 /* .nf_parse_addrlist*/  libcfs_num_parse,
-	 /* .nf_match_addr*/  libcfs_num_match},
-	{/* .nf_type      */  MXLND,
-	 /* .nf_name      */  "mx",
-	 /* .nf_modname   */  "kmxlnd",
-	 /* .nf_addr2str  */  libcfs_ip_addr2str,
-	 /* .nf_str2addr  */  libcfs_ip_str2addr,
-	 /* .nf_parse_addrlist*/  cfs_ip_addr_parse,
-	 /* .nf_match_addr*/  cfs_ip_addr_match},
-	{/* .nf_type      */  PTLLND,
-	 /* .nf_name      */  "ptl",
-	 /* .nf_modname   */  "kptllnd",
-	 /* .nf_addr2str  */  libcfs_decnum_addr2str,
-	 /* .nf_str2addr  */  libcfs_num_str2addr,
-	 /* .nf_parse_addrlist*/  libcfs_num_parse,
-	 /* .nf_match_addr*/  libcfs_num_match},
-	{/* .nf_type      */  GNILND,
-	 /* .nf_name      */  "gni",
-	 /* .nf_modname   */  "kgnilnd",
-	 /* .nf_addr2str  */  libcfs_decnum_addr2str,
-	 /* .nf_str2addr  */  libcfs_num_str2addr,
-	 /* .nf_parse_addrlist*/  libcfs_num_parse,
-	 /* .nf_match_addr*/  libcfs_num_match},
-	/* placeholder for net0 alias.  It MUST BE THE LAST ENTRY */
-	{/* .nf_type      */  -1},
-};
-
-static const int libcfs_nnetstrfns = ARRAY_SIZE(libcfs_netstrfns);
-
-/* CAVEAT EMPTOR XscanfX
- * I use "%n" at the end of a sscanf format to detect trailing junk.  However
- * sscanf may return immediately if it sees the terminating '0' in a string, so
- * I initialise the %n variable to the expected length.  If sscanf sets it;
- * fine, if it doesn't, then the scan ended at the end of the string, which is
- * fine too :) */
-
-static struct netstrfns *
-libcfs_lnd2netstrfns(int lnd)
-{
-	int    i;
-
-	if (lnd >= 0)
-		for (i = 0; i < libcfs_nnetstrfns; i++)
-			if (lnd == libcfs_netstrfns[i].nf_type)
-				return &libcfs_netstrfns[i];
-
-	return NULL;
-}
-
-static struct netstrfns *
-libcfs_namenum2netstrfns(const char *name)
-{
-	struct netstrfns *nf;
-	int	       i;
-
-	for (i = 0; i < libcfs_nnetstrfns; i++) {
-		nf = &libcfs_netstrfns[i];
-		if (nf->nf_type >= 0 &&
-		    !strncmp(name, nf->nf_name, strlen(nf->nf_name)))
-			return nf;
-	}
-	return NULL;
-}
-
-static struct netstrfns *
-libcfs_name2netstrfns(const char *name)
-{
-	int    i;
-
-	for (i = 0; i < libcfs_nnetstrfns; i++)
-		if (libcfs_netstrfns[i].nf_type >= 0 &&
-		    !strcmp(libcfs_netstrfns[i].nf_name, name))
-			return &libcfs_netstrfns[i];
-
-	return NULL;
-}
-
-int
-libcfs_isknown_lnd(int type)
-{
-	return libcfs_lnd2netstrfns(type) != NULL;
-}
-EXPORT_SYMBOL(libcfs_isknown_lnd);
-
-char *
-libcfs_lnd2modname(int lnd)
-{
-	struct netstrfns *nf = libcfs_lnd2netstrfns(lnd);
-
-	return (nf == NULL) ? NULL : nf->nf_modname;
-}
-EXPORT_SYMBOL(libcfs_lnd2modname);
-
-char *
-libcfs_lnd2str(int lnd)
-{
-	char	   *str;
-	struct netstrfns *nf = libcfs_lnd2netstrfns(lnd);
-
-	if (nf != NULL)
-		return nf->nf_name;
-
-	str = libcfs_next_nidstring();
-	snprintf(str, LNET_NIDSTR_SIZE, "?%d?", lnd);
-	return str;
-}
-EXPORT_SYMBOL(libcfs_lnd2str);
-
-int
-libcfs_str2lnd(const char *str)
-{
-	struct netstrfns *nf = libcfs_name2netstrfns(str);
-
-	if (nf != NULL)
-		return nf->nf_type;
-
-	return -1;
-}
-EXPORT_SYMBOL(libcfs_str2lnd);
-
-char *
-libcfs_net2str(__u32 net)
-{
-	int	       lnd = LNET_NETTYP(net);
-	int	       num = LNET_NETNUM(net);
-	struct netstrfns *nf  = libcfs_lnd2netstrfns(lnd);
-	char	     *str = libcfs_next_nidstring();
-
-	if (nf == NULL)
-		snprintf(str, LNET_NIDSTR_SIZE, "<%d:%d>", lnd, num);
-	else if (num == 0)
-		snprintf(str, LNET_NIDSTR_SIZE, "%s", nf->nf_name);
-	else
-		snprintf(str, LNET_NIDSTR_SIZE, "%s%d", nf->nf_name, num);
-
-	return str;
-}
-EXPORT_SYMBOL(libcfs_net2str);
-
-char *
-libcfs_nid2str(lnet_nid_t nid)
-{
-	__u32	     addr = LNET_NIDADDR(nid);
-	__u32	     net = LNET_NIDNET(nid);
-	int	       lnd = LNET_NETTYP(net);
-	int	       nnum = LNET_NETNUM(net);
-	struct netstrfns *nf;
-	char	     *str;
-	int	       nob;
-
-	if (nid == LNET_NID_ANY)
-		return "<?>";
-
-	nf = libcfs_lnd2netstrfns(lnd);
-	str = libcfs_next_nidstring();
-
-	if (nf == NULL)
-		snprintf(str, LNET_NIDSTR_SIZE, "%x@<%d:%d>", addr, lnd, nnum);
-	else {
-		nf->nf_addr2str(addr, str);
-		nob = strlen(str);
-		if (nnum == 0)
-			snprintf(str + nob, LNET_NIDSTR_SIZE - nob, "@%s",
-				 nf->nf_name);
-		else
-			snprintf(str + nob, LNET_NIDSTR_SIZE - nob, "@%s%d",
-				 nf->nf_name, nnum);
-	}
-
-	return str;
-}
-EXPORT_SYMBOL(libcfs_nid2str);
-
-static struct netstrfns *
-libcfs_str2net_internal(const char *str, __u32 *net)
-{
-	struct netstrfns *uninitialized_var(nf);
-	int	       nob;
-	unsigned int   netnum;
-	int	       i;
-
-	for (i = 0; i < libcfs_nnetstrfns; i++) {
-		nf = &libcfs_netstrfns[i];
-		if (nf->nf_type >= 0 &&
-		    !strncmp(str, nf->nf_name, strlen(nf->nf_name)))
-			break;
-	}
-
-	if (i == libcfs_nnetstrfns)
-		return NULL;
-
-	nob = strlen(nf->nf_name);
-
-	if (strlen(str) == (unsigned int)nob) {
-		netnum = 0;
-	} else {
-		if (nf->nf_type == LOLND) /* net number not allowed */
-			return NULL;
-
-		str += nob;
-		i = strlen(str);
-		if (sscanf(str, "%u%n", &netnum, &i) < 1 ||
-		    i != (int)strlen(str))
-			return NULL;
-	}
-
-	*net = LNET_MKNET(nf->nf_type, netnum);
-	return nf;
-}
-
-__u32
-libcfs_str2net(const char *str)
-{
-	__u32  net;
-
-	if (libcfs_str2net_internal(str, &net) != NULL)
-		return net;
-
-	return LNET_NIDNET(LNET_NID_ANY);
-}
-EXPORT_SYMBOL(libcfs_str2net);
-
-lnet_nid_t
-libcfs_str2nid(const char *str)
-{
-	const char       *sep = strchr(str, '@');
-	struct netstrfns *nf;
-	__u32	     net;
-	__u32	     addr;
-
-	if (sep != NULL) {
-		nf = libcfs_str2net_internal(sep + 1, &net);
-		if (nf == NULL)
-			return LNET_NID_ANY;
-	} else {
-		sep = str + strlen(str);
-		net = LNET_MKNET(SOCKLND, 0);
-		nf = libcfs_lnd2netstrfns(SOCKLND);
-		LASSERT(nf != NULL);
-	}
-
-	if (!nf->nf_str2addr(str, (int)(sep - str), &addr))
-		return LNET_NID_ANY;
-
-	return LNET_MKNID(net, addr);
-}
-EXPORT_SYMBOL(libcfs_str2nid);
-
-char *
-libcfs_id2str(lnet_process_id_t id)
-{
-	char *str = libcfs_next_nidstring();
-
-	if (id.pid == LNET_PID_ANY) {
-		snprintf(str, LNET_NIDSTR_SIZE,
-			 "LNET_PID_ANY-%s", libcfs_nid2str(id.nid));
-		return str;
-	}
-
-	snprintf(str, LNET_NIDSTR_SIZE, "%s%u-%s",
-		 ((id.pid & LNET_PID_USERFLAG) != 0) ? "U" : "",
-		 (id.pid & ~LNET_PID_USERFLAG), libcfs_nid2str(id.nid));
-	return str;
-}
-EXPORT_SYMBOL(libcfs_id2str);
-
-int
-libcfs_str2anynid(lnet_nid_t *nidp, const char *str)
-{
-	if (!strcmp(str, "*")) {
-		*nidp = LNET_NID_ANY;
-		return 1;
-	}
-
-	*nidp = libcfs_str2nid(str);
-	return *nidp != LNET_NID_ANY;
-}
-EXPORT_SYMBOL(libcfs_str2anynid);
-
-/**
- * Nid range list syntax.
- * \verbatim
- *
- * <nidlist>	 :== <nidrange> [ ' ' <nidrange> ]
- * <nidrange>	:== <addrrange> '@' <net>
- * <addrrange>       :== '*' |
- *		       <ipaddr_range> |
- *			 <cfs_expr_list>
- * <ipaddr_range>    :== <cfs_expr_list>.<cfs_expr_list>.<cfs_expr_list>.
- *			 <cfs_expr_list>
- * <cfs_expr_list>   :== <number> |
- *		       <expr_list>
- * <expr_list>       :== '[' <range_expr> [ ',' <range_expr>] ']'
- * <range_expr>      :== <number> |
- *		       <number> '-' <number> |
- *		       <number> '-' <number> '/' <number>
- * <net>	     :== <netname> | <netname><number>
- * <netname>	 :== "lo" | "tcp" | "o2ib" | "cib" | "openib" | "iib" |
- *		       "vib" | "ra" | "elan" | "mx" | "ptl"
- * \endverbatim
- */
-
-/**
- * Structure to represent \<nidrange\> token of the syntax.
- *
- * One of this is created for each \<net\> parsed.
- */
-struct nidrange {
-	/**
-	 * Link to list of this structures which is built on nid range
-	 * list parsing.
-	 */
-	struct list_head nr_link;
-	/**
-	 * List head for addrrange::ar_link.
-	 */
-	struct list_head nr_addrranges;
-	/**
-	 * Flag indicating that *@<net> is found.
-	 */
-	int nr_all;
-	/**
-	 * Pointer to corresponding element of libcfs_netstrfns.
-	 */
-	struct netstrfns *nr_netstrfns;
-	/**
-	 * Number of network. E.g. 5 if \<net\> is "elan5".
-	 */
-	int nr_netnum;
-};
-
-/**
- * Structure to represent \<addrrange\> token of the syntax.
- */
-struct addrrange {
-	/**
-	 * Link to nidrange::nr_addrranges.
-	 */
-	struct list_head ar_link;
-	/**
-	 * List head for cfs_expr_list::el_list.
-	 */
-	struct list_head ar_numaddr_ranges;
-};
-
-/**
- * Parses \<addrrange\> token on the syntax.
- *
- * Allocates struct addrrange and links to \a nidrange via
- * (nidrange::nr_addrranges)
- *
- * \retval 1 if \a src parses to '*' | \<ipaddr_range\> | \<cfs_expr_list\>
- * \retval 0 otherwise
- */
-static int
-parse_addrange(const struct cfs_lstr *src, struct nidrange *nidrange)
-{
-	struct addrrange *addrrange;
-
-	if (src->ls_len == 1 && src->ls_str[0] == '*') {
-		nidrange->nr_all = 1;
-		return 1;
-	}
-
-	LIBCFS_ALLOC(addrrange, sizeof(struct addrrange));
-	if (addrrange == NULL)
-		return 0;
-	list_add_tail(&addrrange->ar_link, &nidrange->nr_addrranges);
-	INIT_LIST_HEAD(&addrrange->ar_numaddr_ranges);
-
-	return nidrange->nr_netstrfns->nf_parse_addrlist(src->ls_str,
-						src->ls_len,
-						&addrrange->ar_numaddr_ranges);
-}
-
-/**
- * Finds or creates struct nidrange.
- *
- * Checks if \a src is a valid network name, looks for corresponding
- * nidrange on the ist of nidranges (\a nidlist), creates new struct
- * nidrange if it is not found.
- *
- * \retval pointer to struct nidrange matching network specified via \a src
- * \retval NULL if \a src does not match any network
- */
-static struct nidrange *
-add_nidrange(const struct cfs_lstr *src,
-	     struct list_head *nidlist)
-{
-	struct netstrfns *nf;
-	struct nidrange *nr;
-	int endlen;
-	unsigned netnum;
-
-	if (src->ls_len >= LNET_NIDSTR_SIZE)
-		return NULL;
-
-	nf = libcfs_namenum2netstrfns(src->ls_str);
-	if (nf == NULL)
-		return NULL;
-	endlen = src->ls_len - strlen(nf->nf_name);
-	if (endlen == 0)
-		/* network name only, e.g. "elan" or "tcp" */
-		netnum = 0;
-	else {
-		/* e.g. "elan25" or "tcp23", refuse to parse if
-		 * network name is not appended with decimal or
-		 * hexadecimal number */
-		if (!cfs_str2num_check(src->ls_str + strlen(nf->nf_name),
-				       endlen, &netnum, 0, MAX_NUMERIC_VALUE))
-			return NULL;
-	}
-
-	list_for_each_entry(nr, nidlist, nr_link) {
-		if (nr->nr_netstrfns != nf)
-			continue;
-		if (nr->nr_netnum != netnum)
-			continue;
-		return nr;
-	}
-
-	LIBCFS_ALLOC(nr, sizeof(struct nidrange));
-	if (nr == NULL)
-		return NULL;
-	list_add_tail(&nr->nr_link, nidlist);
-	INIT_LIST_HEAD(&nr->nr_addrranges);
-	nr->nr_netstrfns = nf;
-	nr->nr_all = 0;
-	nr->nr_netnum = netnum;
-
-	return nr;
-}
-
-/**
- * Parses \<nidrange\> token of the syntax.
- *
- * \retval 1 if \a src parses to \<addrrange\> '@' \<net\>
- * \retval 0 otherwise
- */
-static int
-parse_nidrange(struct cfs_lstr *src, struct list_head *nidlist)
-{
-	struct cfs_lstr addrrange;
-	struct cfs_lstr net;
-	struct cfs_lstr tmp;
-	struct nidrange *nr;
-
-	tmp = *src;
-	if (cfs_gettok(src, '@', &addrrange) == 0)
-		goto failed;
-
-	if (cfs_gettok(src, '@', &net) == 0 || src->ls_str != NULL)
-		goto failed;
-
-	nr = add_nidrange(&net, nidlist);
-	if (nr == NULL)
-		goto failed;
-
-	if (parse_addrange(&addrrange, nr) != 0)
-		goto failed;
-
-	return 1;
- failed:
-	CWARN("can't parse nidrange: \"%.*s\"\n", tmp.ls_len, tmp.ls_str);
-	return 0;
-}
-
-/**
- * Frees addrrange structures of \a list.
- *
- * For each struct addrrange structure found on \a list it frees
- * cfs_expr_list list attached to it and frees the addrrange itself.
- *
- * \retval none
- */
-static void
-free_addrranges(struct list_head *list)
-{
-	while (!list_empty(list)) {
-		struct addrrange *ar;
-
-		ar = list_entry(list->next, struct addrrange, ar_link);
-
-		cfs_expr_list_free_list(&ar->ar_numaddr_ranges);
-		list_del(&ar->ar_link);
-		LIBCFS_FREE(ar, sizeof(struct addrrange));
-	}
-}
-
-/**
- * Frees nidrange strutures of \a list.
- *
- * For each struct nidrange structure found on \a list it frees
- * addrrange list attached to it and frees the nidrange itself.
- *
- * \retval none
- */
-void
-cfs_free_nidlist(struct list_head *list)
-{
-	struct list_head *pos, *next;
-	struct nidrange *nr;
-
-	list_for_each_safe(pos, next, list) {
-		nr = list_entry(pos, struct nidrange, nr_link);
-		free_addrranges(&nr->nr_addrranges);
-		list_del(pos);
-		LIBCFS_FREE(nr, sizeof(struct nidrange));
-	}
-}
-EXPORT_SYMBOL(cfs_free_nidlist);
-
-/**
- * Parses nid range list.
- *
- * Parses with rigorous syntax and overflow checking \a str into
- * \<nidrange\> [ ' ' \<nidrange\> ], compiles \a str into set of
- * structures and links that structure to \a nidlist. The resulting
- * list can be used to match a NID againts set of NIDS defined by \a
- * str.
- * \see cfs_match_nid
- *
- * \retval 1 on success
- * \retval 0 otherwise
- */
-int
-cfs_parse_nidlist(char *str, int len, struct list_head *nidlist)
-{
-	struct cfs_lstr src;
-	struct cfs_lstr res;
-	int rc;
-
-	src.ls_str = str;
-	src.ls_len = len;
-	INIT_LIST_HEAD(nidlist);
-	while (src.ls_str) {
-		rc = cfs_gettok(&src, ' ', &res);
-		if (rc == 0) {
-			cfs_free_nidlist(nidlist);
-			return 0;
-		}
-		rc = parse_nidrange(&res, nidlist);
-		if (rc == 0) {
-			cfs_free_nidlist(nidlist);
-			return 0;
-		}
-	}
-	return 1;
-}
-EXPORT_SYMBOL(cfs_parse_nidlist);
-
-/**
- * Matches a nid (\a nid) against the compiled list of nidranges (\a nidlist).
- *
- * \see cfs_parse_nidlist()
- *
- * \retval 1 on match
- * \retval 0  otherwises
- */
-int cfs_match_nid(lnet_nid_t nid, struct list_head *nidlist)
-{
-	struct nidrange *nr;
-	struct addrrange *ar;
-
-	list_for_each_entry(nr, nidlist, nr_link) {
-		if (nr->nr_netstrfns->nf_type != LNET_NETTYP(LNET_NIDNET(nid)))
-			continue;
-		if (nr->nr_netnum != LNET_NETNUM(LNET_NIDNET(nid)))
-			continue;
-		if (nr->nr_all)
-			return 1;
-		list_for_each_entry(ar, &nr->nr_addrranges, ar_link)
-			if (nr->nr_netstrfns->nf_match_addr(LNET_NIDADDR(nid),
-						       &ar->ar_numaddr_ranges))
-				return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(cfs_match_nid);
diff --git a/drivers/staging/lustre/lustre/libcfs/prng.c b/drivers/staging/lustre/lustre/libcfs/prng.c
deleted file mode 100644
index 4147664ff57a..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/prng.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/prng.c
- *
- * concatenation of following two 16-bit multiply with carry generators
- * x(n)=a*x(n-1)+carry mod 2^16 and y(n)=b*y(n-1)+carry mod 2^16,
- * number and carry packed within the same 32 bit integer.
- * algorithm recommended by Marsaglia
-*/
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-/*
-From: George Marsaglia <geo@stat.fsu.edu>
-Newsgroups: sci.math
-Subject: Re: A RANDOM NUMBER GENERATOR FOR C
-Date: Tue, 30 Sep 1997 05:29:35 -0700
-
- * You may replace the two constants 36969 and 18000 by any
- * pair of distinct constants from this list:
- * 18000 18030 18273 18513 18879 19074 19098 19164 19215 19584
- * 19599 19950 20088 20508 20544 20664 20814 20970 21153 21243
- * 21423 21723 21954 22125 22188 22293 22860 22938 22965 22974
- * 23109 23124 23163 23208 23508 23520 23553 23658 23865 24114
- * 24219 24660 24699 24864 24948 25023 25308 25443 26004 26088
- * 26154 26550 26679 26838 27183 27258 27753 27795 27810 27834
- * 27960 28320 28380 28689 28710 28794 28854 28959 28980 29013
- * 29379 29889 30135 30345 30459 30714 30903 30963 31059 31083
- * (or any other 16-bit constants k for which both k*2^16-1
- * and k*2^15-1 are prime) */
-
-#define RANDOM_CONST_A 18030
-#define RANDOM_CONST_B 29013
-
-static unsigned int seed_x = 521288629;
-static unsigned int seed_y = 362436069;
-
-/**
- * cfs_rand - creates new seeds
- *
- * First it creates new seeds from the previous seeds. Then it generates a
- * new pseudo random number for use.
- *
- * Returns a pseudo-random 32-bit integer
- */
-unsigned int cfs_rand(void)
-{
-	seed_x = RANDOM_CONST_A * (seed_x & 65535) + (seed_x >> 16);
-	seed_y = RANDOM_CONST_B * (seed_y & 65535) + (seed_y >> 16);
-
-	return ((seed_x << 16) + (seed_y & 65535));
-}
-EXPORT_SYMBOL(cfs_rand);
-
-/**
- * cfs_srand - sets the initial seed
- * @seed1 : (seed_x) should have the most entropy in the low bits of the word
- * @seed2 : (seed_y) should have the most entropy in the high bits of the word
- *
- * Replaces the original seeds with new values. Used to generate a new pseudo
- * random numbers.
- */
-void cfs_srand(unsigned int seed1, unsigned int seed2)
-{
-	if (seed1)
-		seed_x = seed1; /* use default seeds if parameter is 0 */
-	if (seed2)
-		seed_y = seed2;
-}
-EXPORT_SYMBOL(cfs_srand);
-
-/**
- * cfs_get_random_bytes - generate a bunch of random numbers
- * @buf : buffer to fill with random numbers
- * @size: size of passed in buffer
- *
- * Fills a buffer with random bytes
- */
-void cfs_get_random_bytes(void *buf, int size)
-{
-	int *p = buf;
-	int rem, tmp;
-
-	LASSERT(size >= 0);
-
-	rem = min((int)((unsigned long)buf & (sizeof(int) - 1)), size);
-	if (rem) {
-		get_random_bytes(&tmp, sizeof(tmp));
-		tmp ^= cfs_rand();
-		memcpy(buf, &tmp, rem);
-		p = buf + rem;
-		size -= rem;
-	}
-
-	while (size >= sizeof(int)) {
-		get_random_bytes(&tmp, sizeof(tmp));
-		*p = cfs_rand() ^ tmp;
-		size -= sizeof(int);
-		p++;
-	}
-	buf = p;
-	if (size) {
-		get_random_bytes(&tmp, sizeof(tmp));
-		tmp ^= cfs_rand();
-		memcpy(buf, &tmp, size);
-	}
-}
-EXPORT_SYMBOL(cfs_get_random_bytes);
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.c b/drivers/staging/lustre/lustre/libcfs/tracefile.c
deleted file mode 100644
index effa2af58c13..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.c
+++ /dev/null
@@ -1,1184 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/tracefile.c
- *
- * Author: Zach Brown <zab@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-
-#define DEBUG_SUBSYSTEM S_LNET
-#define LUSTRE_TRACEFILE_PRIVATE
-#include "tracefile.h"
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-/* XXX move things up to the top, comment */
-union cfs_trace_data_union (*cfs_trace_data[TCD_MAX_TYPES])[NR_CPUS] __cacheline_aligned;
-
-char cfs_tracefile[TRACEFILE_NAME_SIZE];
-long long cfs_tracefile_size = CFS_TRACEFILE_SIZE;
-static struct tracefiled_ctl trace_tctl;
-static DEFINE_MUTEX(cfs_trace_thread_mutex);
-static int thread_running;
-
-static atomic_t cfs_tage_allocated = ATOMIC_INIT(0);
-
-static void put_pages_on_tcd_daemon_list(struct page_collection *pc,
-					 struct cfs_trace_cpu_data *tcd);
-
-static inline struct cfs_trace_page *
-cfs_tage_from_list(struct list_head *list)
-{
-	return list_entry(list, struct cfs_trace_page, linkage);
-}
-
-static struct cfs_trace_page *cfs_tage_alloc(gfp_t gfp)
-{
-	struct page	    *page;
-	struct cfs_trace_page *tage;
-
-	/* My caller is trying to free memory */
-	if (!in_interrupt() && memory_pressure_get())
-		return NULL;
-
-	/*
-	 * Don't spam console with allocation failures: they will be reported
-	 * by upper layer anyway.
-	 */
-	gfp |= __GFP_NOWARN;
-	page = alloc_page(gfp);
-	if (page == NULL)
-		return NULL;
-
-	tage = kmalloc(sizeof(*tage), gfp);
-	if (tage == NULL) {
-		__free_page(page);
-		return NULL;
-	}
-
-	tage->page = page;
-	atomic_inc(&cfs_tage_allocated);
-	return tage;
-}
-
-static void cfs_tage_free(struct cfs_trace_page *tage)
-{
-	__LASSERT(tage != NULL);
-	__LASSERT(tage->page != NULL);
-
-	__free_page(tage->page);
-	kfree(tage);
-	atomic_dec(&cfs_tage_allocated);
-}
-
-static void cfs_tage_to_tail(struct cfs_trace_page *tage,
-			     struct list_head *queue)
-{
-	__LASSERT(tage != NULL);
-	__LASSERT(queue != NULL);
-
-	list_move_tail(&tage->linkage, queue);
-}
-
-int cfs_trace_refill_stock(struct cfs_trace_cpu_data *tcd, gfp_t gfp,
-			   struct list_head *stock)
-{
-	int i;
-
-	/*
-	 * XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
-	 * from here: this will lead to infinite recursion.
-	 */
-
-	for (i = 0; i + tcd->tcd_cur_stock_pages < TCD_STOCK_PAGES ; ++ i) {
-		struct cfs_trace_page *tage;
-
-		tage = cfs_tage_alloc(gfp);
-		if (tage == NULL)
-			break;
-		list_add_tail(&tage->linkage, stock);
-	}
-	return i;
-}
-
-/* return a page that has 'len' bytes left at the end */
-static struct cfs_trace_page *
-cfs_trace_get_tage_try(struct cfs_trace_cpu_data *tcd, unsigned long len)
-{
-	struct cfs_trace_page *tage;
-
-	if (tcd->tcd_cur_pages > 0) {
-		__LASSERT(!list_empty(&tcd->tcd_pages));
-		tage = cfs_tage_from_list(tcd->tcd_pages.prev);
-		if (tage->used + len <= PAGE_CACHE_SIZE)
-			return tage;
-	}
-
-	if (tcd->tcd_cur_pages < tcd->tcd_max_pages) {
-		if (tcd->tcd_cur_stock_pages > 0) {
-			tage = cfs_tage_from_list(tcd->tcd_stock_pages.prev);
-			--tcd->tcd_cur_stock_pages;
-			list_del_init(&tage->linkage);
-		} else {
-			tage = cfs_tage_alloc(GFP_ATOMIC);
-			if (unlikely(tage == NULL)) {
-				if ((!memory_pressure_get() ||
-				     in_interrupt()) && printk_ratelimit())
-					printk(KERN_WARNING
-					       "cannot allocate a tage (%ld)\n",
-					       tcd->tcd_cur_pages);
-				return NULL;
-			}
-		}
-
-		tage->used = 0;
-		tage->cpu = smp_processor_id();
-		tage->type = tcd->tcd_type;
-		list_add_tail(&tage->linkage, &tcd->tcd_pages);
-		tcd->tcd_cur_pages++;
-
-		if (tcd->tcd_cur_pages > 8 && thread_running) {
-			struct tracefiled_ctl *tctl = &trace_tctl;
-			/*
-			 * wake up tracefiled to process some pages.
-			 */
-			wake_up(&tctl->tctl_waitq);
-		}
-		return tage;
-	}
-	return NULL;
-}
-
-static void cfs_tcd_shrink(struct cfs_trace_cpu_data *tcd)
-{
-	int pgcount = tcd->tcd_cur_pages / 10;
-	struct page_collection pc;
-	struct cfs_trace_page *tage;
-	struct cfs_trace_page *tmp;
-
-	/*
-	 * XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
-	 * from here: this will lead to infinite recursion.
-	 */
-
-	if (printk_ratelimit())
-		printk(KERN_WARNING "debug daemon buffer overflowed; discarding 10%% of pages (%d of %ld)\n",
-		       pgcount + 1, tcd->tcd_cur_pages);
-
-	INIT_LIST_HEAD(&pc.pc_pages);
-	spin_lock_init(&pc.pc_lock);
-
-	list_for_each_entry_safe(tage, tmp, &tcd->tcd_pages, linkage) {
-		if (pgcount-- == 0)
-			break;
-
-		list_move_tail(&tage->linkage, &pc.pc_pages);
-		tcd->tcd_cur_pages--;
-	}
-	put_pages_on_tcd_daemon_list(&pc, tcd);
-}
-
-/* return a page that has 'len' bytes left at the end */
-static struct cfs_trace_page *cfs_trace_get_tage(struct cfs_trace_cpu_data *tcd,
-						 unsigned long len)
-{
-	struct cfs_trace_page *tage;
-
-	/*
-	 * XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
-	 * from here: this will lead to infinite recursion.
-	 */
-
-	if (len > PAGE_CACHE_SIZE) {
-		pr_err("cowardly refusing to write %lu bytes in a page\n", len);
-		return NULL;
-	}
-
-	tage = cfs_trace_get_tage_try(tcd, len);
-	if (tage != NULL)
-		return tage;
-	if (thread_running)
-		cfs_tcd_shrink(tcd);
-	if (tcd->tcd_cur_pages > 0) {
-		tage = cfs_tage_from_list(tcd->tcd_pages.next);
-		tage->used = 0;
-		cfs_tage_to_tail(tage, &tcd->tcd_pages);
-	}
-	return tage;
-}
-
-int libcfs_debug_msg(struct libcfs_debug_msg_data *msgdata,
-		     const char *format, ...)
-{
-	va_list args;
-	int     rc;
-
-	va_start(args, format);
-	rc = libcfs_debug_vmsg2(msgdata, format, args, NULL);
-	va_end(args);
-
-	return rc;
-}
-EXPORT_SYMBOL(libcfs_debug_msg);
-
-int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
-		       const char *format1, va_list args,
-		       const char *format2, ...)
-{
-	struct cfs_trace_cpu_data *tcd = NULL;
-	struct ptldebug_header     header = {0};
-	struct cfs_trace_page     *tage;
-	/* string_buf is used only if tcd != NULL, and is always set then */
-	char		      *string_buf = NULL;
-	char		      *debug_buf;
-	int			known_size;
-	int			needed = 85; /* average message length */
-	int			max_nob;
-	va_list		    ap;
-	int			depth;
-	int			i;
-	int			remain;
-	int			mask = msgdata->msg_mask;
-	const char		*file = kbasename(msgdata->msg_file);
-	struct cfs_debug_limit_state   *cdls = msgdata->msg_cdls;
-
-	tcd = cfs_trace_get_tcd();
-
-	/* cfs_trace_get_tcd() grabs a lock, which disables preemption and
-	 * pins us to a particular CPU.  This avoids an smp_processor_id()
-	 * warning on Linux when debugging is enabled. */
-	cfs_set_ptldebug_header(&header, msgdata, CDEBUG_STACK());
-
-	if (tcd == NULL)		/* arch may not log in IRQ context */
-		goto console;
-
-	if (tcd->tcd_cur_pages == 0)
-		header.ph_flags |= PH_FLAG_FIRST_RECORD;
-
-	if (tcd->tcd_shutting_down) {
-		cfs_trace_put_tcd(tcd);
-		tcd = NULL;
-		goto console;
-	}
-
-	depth = __current_nesting_level();
-	known_size = strlen(file) + 1 + depth;
-	if (msgdata->msg_fn)
-		known_size += strlen(msgdata->msg_fn) + 1;
-
-	if (libcfs_debug_binary)
-		known_size += sizeof(header);
-
-	/*/
-	 * '2' used because vsnprintf return real size required for output
-	 * _without_ terminating NULL.
-	 * if needed is to small for this format.
-	 */
-	for (i = 0; i < 2; i++) {
-		tage = cfs_trace_get_tage(tcd, needed + known_size + 1);
-		if (tage == NULL) {
-			if (needed + known_size > PAGE_CACHE_SIZE)
-				mask |= D_ERROR;
-
-			cfs_trace_put_tcd(tcd);
-			tcd = NULL;
-			goto console;
-		}
-
-		string_buf = (char *)page_address(tage->page) +
-					tage->used + known_size;
-
-		max_nob = PAGE_CACHE_SIZE - tage->used - known_size;
-		if (max_nob <= 0) {
-			printk(KERN_EMERG "negative max_nob: %d\n",
-			       max_nob);
-			mask |= D_ERROR;
-			cfs_trace_put_tcd(tcd);
-			tcd = NULL;
-			goto console;
-		}
-
-		needed = 0;
-		if (format1) {
-			va_copy(ap, args);
-			needed = vsnprintf(string_buf, max_nob, format1, ap);
-			va_end(ap);
-		}
-
-		if (format2) {
-			remain = max_nob - needed;
-			if (remain < 0)
-				remain = 0;
-
-			va_start(ap, format2);
-			needed += vsnprintf(string_buf + needed, remain,
-					    format2, ap);
-			va_end(ap);
-		}
-
-		if (needed < max_nob) /* well. printing ok.. */
-			break;
-	}
-
-	if (*(string_buf+needed-1) != '\n')
-		printk(KERN_INFO "format at %s:%d:%s doesn't end in newline\n",
-		       file, msgdata->msg_line, msgdata->msg_fn);
-
-	header.ph_len = known_size + needed;
-	debug_buf = (char *)page_address(tage->page) + tage->used;
-
-	if (libcfs_debug_binary) {
-		memcpy(debug_buf, &header, sizeof(header));
-		tage->used += sizeof(header);
-		debug_buf += sizeof(header);
-	}
-
-	/* indent message according to the nesting level */
-	while (depth-- > 0) {
-		*(debug_buf++) = '.';
-		++ tage->used;
-	}
-
-	strcpy(debug_buf, file);
-	tage->used += strlen(file) + 1;
-	debug_buf += strlen(file) + 1;
-
-	if (msgdata->msg_fn) {
-		strcpy(debug_buf, msgdata->msg_fn);
-		tage->used += strlen(msgdata->msg_fn) + 1;
-		debug_buf += strlen(msgdata->msg_fn) + 1;
-	}
-
-	__LASSERT(debug_buf == string_buf);
-
-	tage->used += needed;
-	__LASSERT (tage->used <= PAGE_CACHE_SIZE);
-
-console:
-	if ((mask & libcfs_printk) == 0) {
-		/* no console output requested */
-		if (tcd != NULL)
-			cfs_trace_put_tcd(tcd);
-		return 1;
-	}
-
-	if (cdls != NULL) {
-		if (libcfs_console_ratelimit &&
-		    cdls->cdls_next != 0 &&     /* not first time ever */
-		    !cfs_time_after(cfs_time_current(), cdls->cdls_next)) {
-			/* skipping a console message */
-			cdls->cdls_count++;
-			if (tcd != NULL)
-				cfs_trace_put_tcd(tcd);
-			return 1;
-		}
-
-		if (cfs_time_after(cfs_time_current(), cdls->cdls_next +
-						       libcfs_console_max_delay
-						       + cfs_time_seconds(10))) {
-			/* last timeout was a long time ago */
-			cdls->cdls_delay /= libcfs_console_backoff * 4;
-		} else {
-			cdls->cdls_delay *= libcfs_console_backoff;
-		}
-
-		if (cdls->cdls_delay < libcfs_console_min_delay)
-			cdls->cdls_delay = libcfs_console_min_delay;
-		else if (cdls->cdls_delay > libcfs_console_max_delay)
-			cdls->cdls_delay = libcfs_console_max_delay;
-
-		/* ensure cdls_next is never zero after it's been seen */
-		cdls->cdls_next = (cfs_time_current() + cdls->cdls_delay) | 1;
-	}
-
-	if (tcd != NULL) {
-		cfs_print_to_console(&header, mask, string_buf, needed, file,
-				     msgdata->msg_fn);
-		cfs_trace_put_tcd(tcd);
-	} else {
-		string_buf = cfs_trace_get_console_buffer();
-
-		needed = 0;
-		if (format1 != NULL) {
-			va_copy(ap, args);
-			needed = vsnprintf(string_buf,
-					   CFS_TRACE_CONSOLE_BUFFER_SIZE,
-					   format1, ap);
-			va_end(ap);
-		}
-		if (format2 != NULL) {
-			remain = CFS_TRACE_CONSOLE_BUFFER_SIZE - needed;
-			if (remain > 0) {
-				va_start(ap, format2);
-				needed += vsnprintf(string_buf+needed, remain,
-						    format2, ap);
-				va_end(ap);
-			}
-		}
-		cfs_print_to_console(&header, mask,
-				     string_buf, needed, file, msgdata->msg_fn);
-
-		cfs_trace_put_console_buffer(string_buf);
-	}
-
-	if (cdls != NULL && cdls->cdls_count != 0) {
-		string_buf = cfs_trace_get_console_buffer();
-
-		needed = snprintf(string_buf, CFS_TRACE_CONSOLE_BUFFER_SIZE,
-				  "Skipped %d previous similar message%s\n",
-				  cdls->cdls_count,
-				  (cdls->cdls_count > 1) ? "s" : "");
-
-		cfs_print_to_console(&header, mask,
-				     string_buf, needed, file, msgdata->msg_fn);
-
-		cfs_trace_put_console_buffer(string_buf);
-		cdls->cdls_count = 0;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(libcfs_debug_vmsg2);
-
-void
-cfs_trace_assertion_failed(const char *str,
-			   struct libcfs_debug_msg_data *msgdata)
-{
-	struct ptldebug_header hdr;
-
-	libcfs_panic_in_progress = 1;
-	libcfs_catastrophe = 1;
-	mb();
-
-	cfs_set_ptldebug_header(&hdr, msgdata, CDEBUG_STACK());
-
-	cfs_print_to_console(&hdr, D_EMERG, str, strlen(str),
-			     msgdata->msg_file, msgdata->msg_fn);
-
-	panic("Lustre debug assertion failure\n");
-
-	/* not reached */
-}
-
-static void
-panic_collect_pages(struct page_collection *pc)
-{
-	/* Do the collect_pages job on a single CPU: assumes that all other
-	 * CPUs have been stopped during a panic.  If this isn't true for some
-	 * arch, this will have to be implemented separately in each arch.  */
-	int			i;
-	int			j;
-	struct cfs_trace_cpu_data *tcd;
-
-	INIT_LIST_HEAD(&pc->pc_pages);
-
-	cfs_tcd_for_each(tcd, i, j) {
-		list_splice_init(&tcd->tcd_pages, &pc->pc_pages);
-		tcd->tcd_cur_pages = 0;
-
-		if (pc->pc_want_daemon_pages) {
-			list_splice_init(&tcd->tcd_daemon_pages,
-					     &pc->pc_pages);
-			tcd->tcd_cur_daemon_pages = 0;
-		}
-	}
-}
-
-static void collect_pages_on_all_cpus(struct page_collection *pc)
-{
-	struct cfs_trace_cpu_data *tcd;
-	int i, cpu;
-
-	spin_lock(&pc->pc_lock);
-	for_each_possible_cpu(cpu) {
-		cfs_tcd_for_each_type_lock(tcd, i, cpu) {
-			list_splice_init(&tcd->tcd_pages, &pc->pc_pages);
-			tcd->tcd_cur_pages = 0;
-			if (pc->pc_want_daemon_pages) {
-				list_splice_init(&tcd->tcd_daemon_pages,
-						     &pc->pc_pages);
-				tcd->tcd_cur_daemon_pages = 0;
-			}
-		}
-	}
-	spin_unlock(&pc->pc_lock);
-}
-
-static void collect_pages(struct page_collection *pc)
-{
-	INIT_LIST_HEAD(&pc->pc_pages);
-
-	if (libcfs_panic_in_progress)
-		panic_collect_pages(pc);
-	else
-		collect_pages_on_all_cpus(pc);
-}
-
-static void put_pages_back_on_all_cpus(struct page_collection *pc)
-{
-	struct cfs_trace_cpu_data *tcd;
-	struct list_head *cur_head;
-	struct cfs_trace_page *tage;
-	struct cfs_trace_page *tmp;
-	int i, cpu;
-
-	spin_lock(&pc->pc_lock);
-	for_each_possible_cpu(cpu) {
-		cfs_tcd_for_each_type_lock(tcd, i, cpu) {
-			cur_head = tcd->tcd_pages.next;
-
-			list_for_each_entry_safe(tage, tmp, &pc->pc_pages,
-						 linkage) {
-
-				__LASSERT_TAGE_INVARIANT(tage);
-
-				if (tage->cpu != cpu || tage->type != i)
-					continue;
-
-				cfs_tage_to_tail(tage, cur_head);
-				tcd->tcd_cur_pages++;
-			}
-		}
-	}
-	spin_unlock(&pc->pc_lock);
-}
-
-static void put_pages_back(struct page_collection *pc)
-{
-	if (!libcfs_panic_in_progress)
-		put_pages_back_on_all_cpus(pc);
-}
-
-/* Add pages to a per-cpu debug daemon ringbuffer.  This buffer makes sure that
- * we have a good amount of data at all times for dumping during an LBUG, even
- * if we have been steadily writing (and otherwise discarding) pages via the
- * debug daemon. */
-static void put_pages_on_tcd_daemon_list(struct page_collection *pc,
-					 struct cfs_trace_cpu_data *tcd)
-{
-	struct cfs_trace_page *tage;
-	struct cfs_trace_page *tmp;
-
-	spin_lock(&pc->pc_lock);
-	list_for_each_entry_safe(tage, tmp, &pc->pc_pages, linkage) {
-
-		__LASSERT_TAGE_INVARIANT(tage);
-
-		if (tage->cpu != tcd->tcd_cpu || tage->type != tcd->tcd_type)
-			continue;
-
-		cfs_tage_to_tail(tage, &tcd->tcd_daemon_pages);
-		tcd->tcd_cur_daemon_pages++;
-
-		if (tcd->tcd_cur_daemon_pages > tcd->tcd_max_pages) {
-			struct cfs_trace_page *victim;
-
-			__LASSERT(!list_empty(&tcd->tcd_daemon_pages));
-			victim = cfs_tage_from_list(tcd->tcd_daemon_pages.next);
-
-			__LASSERT_TAGE_INVARIANT(victim);
-
-			list_del(&victim->linkage);
-			cfs_tage_free(victim);
-			tcd->tcd_cur_daemon_pages--;
-		}
-	}
-	spin_unlock(&pc->pc_lock);
-}
-
-static void put_pages_on_daemon_list(struct page_collection *pc)
-{
-	struct cfs_trace_cpu_data *tcd;
-	int i, cpu;
-
-	for_each_possible_cpu(cpu) {
-		cfs_tcd_for_each_type_lock(tcd, i, cpu)
-			put_pages_on_tcd_daemon_list(pc, tcd);
-	}
-}
-
-void cfs_trace_debug_print(void)
-{
-	struct page_collection pc;
-	struct cfs_trace_page *tage;
-	struct cfs_trace_page *tmp;
-
-	spin_lock_init(&pc.pc_lock);
-
-	pc.pc_want_daemon_pages = 1;
-	collect_pages(&pc);
-	list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
-		char *p, *file, *fn;
-		struct page *page;
-
-		__LASSERT_TAGE_INVARIANT(tage);
-
-		page = tage->page;
-		p = page_address(page);
-		while (p < ((char *)page_address(page) + tage->used)) {
-			struct ptldebug_header *hdr;
-			int len;
-			hdr = (void *)p;
-			p += sizeof(*hdr);
-			file = p;
-			p += strlen(file) + 1;
-			fn = p;
-			p += strlen(fn) + 1;
-			len = hdr->ph_len - (int)(p - (char *)hdr);
-
-			cfs_print_to_console(hdr, D_EMERG, p, len, file, fn);
-
-			p += len;
-		}
-
-		list_del(&tage->linkage);
-		cfs_tage_free(tage);
-	}
-}
-
-int cfs_tracefile_dump_all_pages(char *filename)
-{
-	struct page_collection	pc;
-	struct file		*filp;
-	struct cfs_trace_page	*tage;
-	struct cfs_trace_page	*tmp;
-	char			*buf;
-	int rc;
-
-	DECL_MMSPACE;
-
-	cfs_tracefile_write_lock();
-
-	filp = filp_open(filename, O_CREAT|O_EXCL|O_WRONLY|O_LARGEFILE, 0600);
-	if (IS_ERR(filp)) {
-		rc = PTR_ERR(filp);
-		filp = NULL;
-		pr_err("LustreError: can't open %s for dump: rc %d\n",
-			filename, rc);
-		goto out;
-	}
-
-	spin_lock_init(&pc.pc_lock);
-	pc.pc_want_daemon_pages = 1;
-	collect_pages(&pc);
-	if (list_empty(&pc.pc_pages)) {
-		rc = 0;
-		goto close;
-	}
-
-	/* ok, for now, just write the pages.  in the future we'll be building
-	 * iobufs with the pages and calling generic_direct_IO */
-	MMSPACE_OPEN;
-	list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
-
-		__LASSERT_TAGE_INVARIANT(tage);
-
-		buf = kmap(tage->page);
-		rc = vfs_write(filp, (__force const char __user *)buf,
-			       tage->used, &filp->f_pos);
-		kunmap(tage->page);
-
-		if (rc != (int)tage->used) {
-			printk(KERN_WARNING "wanted to write %u but wrote %d\n",
-			       tage->used, rc);
-			put_pages_back(&pc);
-			__LASSERT(list_empty(&pc.pc_pages));
-			break;
-		}
-		list_del(&tage->linkage);
-		cfs_tage_free(tage);
-	}
-	MMSPACE_CLOSE;
-	rc = vfs_fsync(filp, 1);
-	if (rc)
-		pr_err("sync returns %d\n", rc);
-close:
-	filp_close(filp, NULL);
-out:
-	cfs_tracefile_write_unlock();
-	return rc;
-}
-
-void cfs_trace_flush_pages(void)
-{
-	struct page_collection pc;
-	struct cfs_trace_page *tage;
-	struct cfs_trace_page *tmp;
-
-	spin_lock_init(&pc.pc_lock);
-
-	pc.pc_want_daemon_pages = 1;
-	collect_pages(&pc);
-	list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
-
-		__LASSERT_TAGE_INVARIANT(tage);
-
-		list_del(&tage->linkage);
-		cfs_tage_free(tage);
-	}
-}
-
-int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob,
-			    const char __user *usr_buffer, int usr_buffer_nob)
-{
-	int    nob;
-
-	if (usr_buffer_nob > knl_buffer_nob)
-		return -EOVERFLOW;
-
-	if (copy_from_user((void *)knl_buffer,
-			   usr_buffer, usr_buffer_nob))
-		return -EFAULT;
-
-	nob = strnlen(knl_buffer, usr_buffer_nob);
-	while (nob-- >= 0)		      /* strip trailing whitespace */
-		if (!isspace(knl_buffer[nob]))
-			break;
-
-	if (nob < 0)			    /* empty string */
-		return -EINVAL;
-
-	if (nob == knl_buffer_nob)	      /* no space to terminate */
-		return -EOVERFLOW;
-
-	knl_buffer[nob + 1] = 0;		/* terminate */
-	return 0;
-}
-EXPORT_SYMBOL(cfs_trace_copyin_string);
-
-int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
-			     const char *knl_buffer, char *append)
-{
-	/* NB if 'append' != NULL, it's a single character to append to the
-	 * copied out string - usually "\n", for /proc entries and "" (i.e. a
-	 * terminating zero byte) for sysctl entries */
-	int   nob = strlen(knl_buffer);
-
-	if (nob > usr_buffer_nob)
-		nob = usr_buffer_nob;
-
-	if (copy_to_user(usr_buffer, knl_buffer, nob))
-		return -EFAULT;
-
-	if (append != NULL && nob < usr_buffer_nob) {
-		if (copy_to_user(usr_buffer + nob, append, 1))
-			return -EFAULT;
-
-		nob++;
-	}
-
-	return nob;
-}
-EXPORT_SYMBOL(cfs_trace_copyout_string);
-
-int cfs_trace_allocate_string_buffer(char **str, int nob)
-{
-	if (nob > 2 * PAGE_CACHE_SIZE)	    /* string must be "sensible" */
-		return -EINVAL;
-
-	*str = kmalloc(nob, GFP_IOFS | __GFP_ZERO);
-	if (*str == NULL)
-		return -ENOMEM;
-
-	return 0;
-}
-
-void cfs_trace_free_string_buffer(char *str, int nob)
-{
-	kfree(str);
-}
-
-int cfs_trace_dump_debug_buffer_usrstr(void __user *usr_str, int usr_str_nob)
-{
-	char	 *str;
-	int	   rc;
-
-	rc = cfs_trace_allocate_string_buffer(&str, usr_str_nob + 1);
-	if (rc != 0)
-		return rc;
-
-	rc = cfs_trace_copyin_string(str, usr_str_nob + 1,
-				     usr_str, usr_str_nob);
-	if (rc != 0)
-		goto out;
-
-	if (str[0] != '/') {
-		rc = -EINVAL;
-		goto out;
-	}
-	rc = cfs_tracefile_dump_all_pages(str);
-out:
-	cfs_trace_free_string_buffer(str, usr_str_nob + 1);
-	return rc;
-}
-
-int cfs_trace_daemon_command(char *str)
-{
-	int       rc = 0;
-
-	cfs_tracefile_write_lock();
-
-	if (strcmp(str, "stop") == 0) {
-		cfs_tracefile_write_unlock();
-		cfs_trace_stop_thread();
-		cfs_tracefile_write_lock();
-		memset(cfs_tracefile, 0, sizeof(cfs_tracefile));
-
-	} else if (strncmp(str, "size=", 5) == 0) {
-		cfs_tracefile_size = simple_strtoul(str + 5, NULL, 0);
-		if (cfs_tracefile_size < 10 || cfs_tracefile_size > 20480)
-			cfs_tracefile_size = CFS_TRACEFILE_SIZE;
-		else
-			cfs_tracefile_size <<= 20;
-
-	} else if (strlen(str) >= sizeof(cfs_tracefile)) {
-		rc = -ENAMETOOLONG;
-	} else if (str[0] != '/') {
-		rc = -EINVAL;
-	} else {
-		strcpy(cfs_tracefile, str);
-
-		printk(KERN_INFO
-		       "Lustre: debug daemon will attempt to start writing to %s (%lukB max)\n",
-		       cfs_tracefile,
-		       (long)(cfs_tracefile_size >> 10));
-
-		cfs_trace_start_thread();
-	}
-
-	cfs_tracefile_write_unlock();
-	return rc;
-}
-
-int cfs_trace_daemon_command_usrstr(void __user *usr_str, int usr_str_nob)
-{
-	char *str;
-	int   rc;
-
-	rc = cfs_trace_allocate_string_buffer(&str, usr_str_nob + 1);
-	if (rc != 0)
-		return rc;
-
-	rc = cfs_trace_copyin_string(str, usr_str_nob + 1,
-				 usr_str, usr_str_nob);
-	if (rc == 0)
-		rc = cfs_trace_daemon_command(str);
-
-	cfs_trace_free_string_buffer(str, usr_str_nob + 1);
-	return rc;
-}
-
-int cfs_trace_set_debug_mb(int mb)
-{
-	int i;
-	int j;
-	int pages;
-	int limit = cfs_trace_max_debug_mb();
-	struct cfs_trace_cpu_data *tcd;
-
-	if (mb < num_possible_cpus()) {
-		printk(KERN_WARNING
-		       "Lustre: %d MB is too small for debug buffer size, setting it to %d MB.\n",
-		       mb, num_possible_cpus());
-		mb = num_possible_cpus();
-	}
-
-	if (mb > limit) {
-		printk(KERN_WARNING
-		       "Lustre: %d MB is too large for debug buffer size, setting it to %d MB.\n",
-		       mb, limit);
-		mb = limit;
-	}
-
-	mb /= num_possible_cpus();
-	pages = mb << (20 - PAGE_CACHE_SHIFT);
-
-	cfs_tracefile_write_lock();
-
-	cfs_tcd_for_each(tcd, i, j)
-		tcd->tcd_max_pages = (pages * tcd->tcd_pages_factor) / 100;
-
-	cfs_tracefile_write_unlock();
-
-	return 0;
-}
-
-int cfs_trace_get_debug_mb(void)
-{
-	int i;
-	int j;
-	struct cfs_trace_cpu_data *tcd;
-	int total_pages = 0;
-
-	cfs_tracefile_read_lock();
-
-	cfs_tcd_for_each(tcd, i, j)
-		total_pages += tcd->tcd_max_pages;
-
-	cfs_tracefile_read_unlock();
-
-	return (total_pages >> (20 - PAGE_CACHE_SHIFT)) + 1;
-}
-
-static int tracefiled(void *arg)
-{
-	struct page_collection pc;
-	struct tracefiled_ctl *tctl = arg;
-	struct cfs_trace_page *tage;
-	struct cfs_trace_page *tmp;
-	struct file *filp;
-	char *buf;
-	int last_loop = 0;
-	int rc;
-
-	DECL_MMSPACE;
-
-	/* we're started late enough that we pick up init's fs context */
-	/* this is so broken in uml?  what on earth is going on? */
-
-	spin_lock_init(&pc.pc_lock);
-	complete(&tctl->tctl_start);
-
-	while (1) {
-		wait_queue_t __wait;
-
-		pc.pc_want_daemon_pages = 0;
-		collect_pages(&pc);
-		if (list_empty(&pc.pc_pages))
-			goto end_loop;
-
-		filp = NULL;
-		cfs_tracefile_read_lock();
-		if (cfs_tracefile[0] != 0) {
-			filp = filp_open(cfs_tracefile,
-					 O_CREAT | O_RDWR | O_LARGEFILE,
-					 0600);
-			if (IS_ERR(filp)) {
-				rc = PTR_ERR(filp);
-				filp = NULL;
-				printk(KERN_WARNING "couldn't open %s: %d\n",
-				       cfs_tracefile, rc);
-			}
-		}
-		cfs_tracefile_read_unlock();
-		if (filp == NULL) {
-			put_pages_on_daemon_list(&pc);
-			__LASSERT(list_empty(&pc.pc_pages));
-			goto end_loop;
-		}
-
-		MMSPACE_OPEN;
-
-		list_for_each_entry_safe(tage, tmp, &pc.pc_pages,
-						   linkage) {
-			static loff_t f_pos;
-
-			__LASSERT_TAGE_INVARIANT(tage);
-
-			if (f_pos >= (off_t)cfs_tracefile_size)
-				f_pos = 0;
-			else if (f_pos > i_size_read(file_inode(filp)))
-				f_pos = i_size_read(file_inode(filp));
-
-			buf = kmap(tage->page);
-			rc = vfs_write(filp, (__force const char __user *)buf,
-				       tage->used, &f_pos);
-			kunmap(tage->page);
-
-			if (rc != (int)tage->used) {
-				printk(KERN_WARNING "wanted to write %u but wrote %d\n",
-				       tage->used, rc);
-				put_pages_back(&pc);
-				__LASSERT(list_empty(&pc.pc_pages));
-				break;
-			}
-		}
-		MMSPACE_CLOSE;
-
-		filp_close(filp, NULL);
-		put_pages_on_daemon_list(&pc);
-		if (!list_empty(&pc.pc_pages)) {
-			int i;
-
-			printk(KERN_ALERT "Lustre: trace pages aren't empty\n");
-			pr_err("total cpus(%d): ",
-				num_possible_cpus());
-			for (i = 0; i < num_possible_cpus(); i++)
-				if (cpu_online(i))
-					pr_cont("%d(on) ", i);
-				else
-					pr_cont("%d(off) ", i);
-			pr_cont("\n");
-
-			i = 0;
-			list_for_each_entry_safe(tage, tmp, &pc.pc_pages,
-						     linkage)
-				pr_err("page %d belongs to cpu %d\n",
-					++i, tage->cpu);
-			pr_err("There are %d pages unwritten\n", i);
-		}
-		__LASSERT(list_empty(&pc.pc_pages));
-end_loop:
-		if (atomic_read(&tctl->tctl_shutdown)) {
-			if (last_loop == 0) {
-				last_loop = 1;
-				continue;
-			} else {
-				break;
-			}
-		}
-		init_waitqueue_entry(&__wait, current);
-		add_wait_queue(&tctl->tctl_waitq, &__wait);
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1));
-		remove_wait_queue(&tctl->tctl_waitq, &__wait);
-	}
-	complete(&tctl->tctl_stop);
-	return 0;
-}
-
-int cfs_trace_start_thread(void)
-{
-	struct tracefiled_ctl *tctl = &trace_tctl;
-	int rc = 0;
-
-	mutex_lock(&cfs_trace_thread_mutex);
-	if (thread_running)
-		goto out;
-
-	init_completion(&tctl->tctl_start);
-	init_completion(&tctl->tctl_stop);
-	init_waitqueue_head(&tctl->tctl_waitq);
-	atomic_set(&tctl->tctl_shutdown, 0);
-
-	if (IS_ERR(kthread_run(tracefiled, tctl, "ktracefiled"))) {
-		rc = -ECHILD;
-		goto out;
-	}
-
-	wait_for_completion(&tctl->tctl_start);
-	thread_running = 1;
-out:
-	mutex_unlock(&cfs_trace_thread_mutex);
-	return rc;
-}
-
-void cfs_trace_stop_thread(void)
-{
-	struct tracefiled_ctl *tctl = &trace_tctl;
-
-	mutex_lock(&cfs_trace_thread_mutex);
-	if (thread_running) {
-		printk(KERN_INFO
-		       "Lustre: shutting down debug daemon thread...\n");
-		atomic_set(&tctl->tctl_shutdown, 1);
-		wait_for_completion(&tctl->tctl_stop);
-		thread_running = 0;
-	}
-	mutex_unlock(&cfs_trace_thread_mutex);
-}
-
-int cfs_tracefile_init(int max_pages)
-{
-	struct cfs_trace_cpu_data *tcd;
-	int		    i;
-	int		    j;
-	int		    rc;
-	int		    factor;
-
-	rc = cfs_tracefile_init_arch();
-	if (rc != 0)
-		return rc;
-
-	cfs_tcd_for_each(tcd, i, j) {
-		/* tcd_pages_factor is initialized int tracefile_init_arch. */
-		factor = tcd->tcd_pages_factor;
-		INIT_LIST_HEAD(&tcd->tcd_pages);
-		INIT_LIST_HEAD(&tcd->tcd_stock_pages);
-		INIT_LIST_HEAD(&tcd->tcd_daemon_pages);
-		tcd->tcd_cur_pages = 0;
-		tcd->tcd_cur_stock_pages = 0;
-		tcd->tcd_cur_daemon_pages = 0;
-		tcd->tcd_max_pages = (max_pages * factor) / 100;
-		LASSERT(tcd->tcd_max_pages > 0);
-		tcd->tcd_shutting_down = 0;
-	}
-
-	return 0;
-}
-
-static void trace_cleanup_on_all_cpus(void)
-{
-	struct cfs_trace_cpu_data *tcd;
-	struct cfs_trace_page *tage;
-	struct cfs_trace_page *tmp;
-	int i, cpu;
-
-	for_each_possible_cpu(cpu) {
-		cfs_tcd_for_each_type_lock(tcd, i, cpu) {
-			tcd->tcd_shutting_down = 1;
-
-			list_for_each_entry_safe(tage, tmp, &tcd->tcd_pages,
-							   linkage) {
-				__LASSERT_TAGE_INVARIANT(tage);
-
-				list_del(&tage->linkage);
-				cfs_tage_free(tage);
-			}
-
-			tcd->tcd_cur_pages = 0;
-		}
-	}
-}
-
-static void cfs_trace_cleanup(void)
-{
-	struct page_collection pc;
-
-	INIT_LIST_HEAD(&pc.pc_pages);
-	spin_lock_init(&pc.pc_lock);
-
-	trace_cleanup_on_all_cpus();
-
-	cfs_tracefile_fini_arch();
-}
-
-void cfs_tracefile_exit(void)
-{
-	cfs_trace_stop_thread();
-	cfs_trace_cleanup();
-}
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.h b/drivers/staging/lustre/lustre/libcfs/tracefile.h
deleted file mode 100644
index e931f6d98de9..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.h
+++ /dev/null
@@ -1,339 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LIBCFS_TRACEFILE_H__
-#define __LIBCFS_TRACEFILE_H__
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "linux/linux-tracefile.h"
-
-/* trace file lock routines */
-
-#define TRACEFILE_NAME_SIZE 1024
-extern char      cfs_tracefile[TRACEFILE_NAME_SIZE];
-extern long long cfs_tracefile_size;
-
-void libcfs_run_debug_log_upcall(char *file);
-
-int  cfs_tracefile_init_arch(void);
-void cfs_tracefile_fini_arch(void);
-
-void cfs_tracefile_read_lock(void);
-void cfs_tracefile_read_unlock(void);
-void cfs_tracefile_write_lock(void);
-void cfs_tracefile_write_unlock(void);
-
-int cfs_tracefile_dump_all_pages(char *filename);
-void cfs_trace_debug_print(void);
-void cfs_trace_flush_pages(void);
-int cfs_trace_start_thread(void);
-void cfs_trace_stop_thread(void);
-int cfs_tracefile_init(int max_pages);
-void cfs_tracefile_exit(void);
-
-
-
-int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob,
-			    const char __user *usr_buffer, int usr_buffer_nob);
-int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
-			     const char *knl_str, char *append);
-int cfs_trace_allocate_string_buffer(char **str, int nob);
-void cfs_trace_free_string_buffer(char *str, int nob);
-int cfs_trace_dump_debug_buffer_usrstr(void __user *usr_str, int usr_str_nob);
-int cfs_trace_daemon_command(char *str);
-int cfs_trace_daemon_command_usrstr(void __user *usr_str, int usr_str_nob);
-int cfs_trace_set_debug_mb(int mb);
-int cfs_trace_get_debug_mb(void);
-
-void libcfs_debug_dumplog_internal(void *arg);
-void libcfs_register_panic_notifier(void);
-void libcfs_unregister_panic_notifier(void);
-extern int  libcfs_panic_in_progress;
-int cfs_trace_max_debug_mb(void);
-
-#define TCD_MAX_PAGES (5 << (20 - PAGE_CACHE_SHIFT))
-#define TCD_STOCK_PAGES (TCD_MAX_PAGES)
-#define CFS_TRACEFILE_SIZE (500 << 20)
-
-#ifdef LUSTRE_TRACEFILE_PRIVATE
-
-/*
- * Private declare for tracefile
- */
-#define TCD_MAX_PAGES (5 << (20 - PAGE_CACHE_SHIFT))
-#define TCD_STOCK_PAGES (TCD_MAX_PAGES)
-
-#define CFS_TRACEFILE_SIZE (500 << 20)
-
-/* Size of a buffer for sprinting console messages if we can't get a page
- * from system */
-#define CFS_TRACE_CONSOLE_BUFFER_SIZE   1024
-
-union cfs_trace_data_union {
-	struct cfs_trace_cpu_data {
-		/*
-		 * Even though this structure is meant to be per-CPU, locking
-		 * is needed because in some places the data may be accessed
-		 * from other CPUs. This lock is directly used in trace_get_tcd
-		 * and trace_put_tcd, which are called in libcfs_debug_vmsg2 and
-		 * tcd_for_each_type_lock
-		 */
-		spinlock_t		tcd_lock;
-		unsigned long	   tcd_lock_flags;
-
-		/*
-		 * pages with trace records not yet processed by tracefiled.
-		 */
-		struct list_head	      tcd_pages;
-		/* number of pages on ->tcd_pages */
-		unsigned long	   tcd_cur_pages;
-
-		/*
-		 * pages with trace records already processed by
-		 * tracefiled. These pages are kept in memory, so that some
-		 * portion of log can be written in the event of LBUG. This
-		 * list is maintained in LRU order.
-		 *
-		 * Pages are moved to ->tcd_daemon_pages by tracefiled()
-		 * (put_pages_on_daemon_list()). LRU pages from this list are
-		 * discarded when list grows too large.
-		 */
-		struct list_head	      tcd_daemon_pages;
-		/* number of pages on ->tcd_daemon_pages */
-		unsigned long	   tcd_cur_daemon_pages;
-
-		/*
-		 * Maximal number of pages allowed on ->tcd_pages and
-		 * ->tcd_daemon_pages each.
-		 * Always TCD_MAX_PAGES * tcd_pages_factor / 100 in current
-		 * implementation.
-		 */
-		unsigned long	   tcd_max_pages;
-
-		/*
-		 * preallocated pages to write trace records into. Pages from
-		 * ->tcd_stock_pages are moved to ->tcd_pages by
-		 * portals_debug_msg().
-		 *
-		 * This list is necessary, because on some platforms it's
-		 * impossible to perform efficient atomic page allocation in a
-		 * non-blockable context.
-		 *
-		 * Such platforms fill ->tcd_stock_pages "on occasion", when
-		 * tracing code is entered in blockable context.
-		 *
-		 * trace_get_tage_try() tries to get a page from
-		 * ->tcd_stock_pages first and resorts to atomic page
-		 * allocation only if this queue is empty. ->tcd_stock_pages
-		 * is replenished when tracing code is entered in blocking
-		 * context (darwin-tracefile.c:trace_get_tcd()). We try to
-		 * maintain TCD_STOCK_PAGES (40 by default) pages in this
-		 * queue. Atomic allocation is only required if more than
-		 * TCD_STOCK_PAGES pagesful are consumed by trace records all
-		 * emitted in non-blocking contexts. Which is quite unlikely.
-		 */
-		struct list_head	      tcd_stock_pages;
-		/* number of pages on ->tcd_stock_pages */
-		unsigned long	   tcd_cur_stock_pages;
-
-		unsigned short	  tcd_shutting_down;
-		unsigned short	  tcd_cpu;
-		unsigned short	  tcd_type;
-		/* The factors to share debug memory. */
-		unsigned short	  tcd_pages_factor;
-	} tcd;
-	char __pad[L1_CACHE_ALIGN(sizeof(struct cfs_trace_cpu_data))];
-};
-
-#define TCD_MAX_TYPES      8
-extern union cfs_trace_data_union (*cfs_trace_data[TCD_MAX_TYPES])[NR_CPUS];
-
-#define cfs_tcd_for_each(tcd, i, j)				       \
-    for (i = 0; cfs_trace_data[i] != NULL; i++)			   \
-	for (j = 0, ((tcd) = &(*cfs_trace_data[i])[j].tcd);	       \
-	     j < num_possible_cpus();				 \
-	     j++, (tcd) = &(*cfs_trace_data[i])[j].tcd)
-
-#define cfs_tcd_for_each_type_lock(tcd, i, cpu)			   \
-    for (i = 0; cfs_trace_data[i] &&				      \
-	 (tcd = &(*cfs_trace_data[i])[cpu].tcd) &&			\
-	 cfs_trace_lock_tcd(tcd, 1); cfs_trace_unlock_tcd(tcd, 1), i++)
-
-/* XXX nikita: this declaration is internal to tracefile.c and should probably
- * be moved there */
-struct page_collection {
-	struct list_head	pc_pages;
-	/*
-	 * spin-lock protecting ->pc_pages. It is taken by smp_call_function()
-	 * call-back functions. XXX nikita: Which is horrible: all processors
-	 * receive NMI at the same time only to be serialized by this
-	 * lock. Probably ->pc_pages should be replaced with an array of
-	 * NR_CPUS elements accessed locklessly.
-	 */
-	spinlock_t	pc_lock;
-	/*
-	 * if this flag is set, collect_pages() will spill both
-	 * ->tcd_daemon_pages and ->tcd_pages to the ->pc_pages. Otherwise,
-	 * only ->tcd_pages are spilled.
-	 */
-	int		pc_want_daemon_pages;
-};
-
-/* XXX nikita: this declaration is internal to tracefile.c and should probably
- * be moved there */
-struct tracefiled_ctl {
-	struct completion	tctl_start;
-	struct completion	tctl_stop;
-	wait_queue_head_t		tctl_waitq;
-	pid_t			tctl_pid;
-	atomic_t		tctl_shutdown;
-};
-
-/*
- * small data-structure for each page owned by tracefiled.
- */
-/* XXX nikita: this declaration is internal to tracefile.c and should probably
- * be moved there */
-struct cfs_trace_page {
-	/*
-	 * page itself
-	 */
-	struct page	  *page;
-	/*
-	 * linkage into one of the lists in trace_data_union or
-	 * page_collection
-	 */
-	struct list_head	   linkage;
-	/*
-	 * number of bytes used within this page
-	 */
-	unsigned int	 used;
-	/*
-	 * cpu that owns this page
-	 */
-	unsigned short       cpu;
-	/*
-	 * type(context) of this page
-	 */
-	unsigned short       type;
-};
-
-void cfs_set_ptldebug_header(struct ptldebug_header *header,
-			     struct libcfs_debug_msg_data *m,
-			     unsigned long stack);
-void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
-			  const char *buf, int len, const char *file,
-			  const char *fn);
-
-int cfs_trace_lock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
-void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
-
-/**
- * trace_buf_type_t, trace_buf_idx_get() and trace_console_buffers[][]
- * are not public libcfs API; they should be defined in
- * platform-specific tracefile include files
- * (see, for example, linux-tracefile.h).
- */
-
-extern char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX];
-cfs_trace_buf_type_t cfs_trace_buf_idx_get(void);
-
-static inline char *
-cfs_trace_get_console_buffer(void)
-{
-	unsigned int i = get_cpu();
-	unsigned int j = cfs_trace_buf_idx_get();
-
-	return cfs_trace_console_buffers[i][j];
-}
-
-static inline void
-cfs_trace_put_console_buffer(char *buffer)
-{
-	put_cpu();
-}
-
-static inline struct cfs_trace_cpu_data *
-cfs_trace_get_tcd(void)
-{
-	struct cfs_trace_cpu_data *tcd =
-		&(*cfs_trace_data[cfs_trace_buf_idx_get()])[get_cpu()].tcd;
-
-	cfs_trace_lock_tcd(tcd, 0);
-
-	return tcd;
-}
-
-static inline void
-cfs_trace_put_tcd (struct cfs_trace_cpu_data *tcd)
-{
-	cfs_trace_unlock_tcd(tcd, 0);
-
-	put_cpu();
-}
-
-int cfs_trace_refill_stock(struct cfs_trace_cpu_data *tcd, gfp_t gfp,
-			   struct list_head *stock);
-
-
-int cfs_tcd_owns_tage(struct cfs_trace_cpu_data *tcd,
-		      struct cfs_trace_page *tage);
-
-void cfs_trace_assertion_failed(const char *str,
-				struct libcfs_debug_msg_data *m);
-
-/* ASSERTION that is safe to use within the debug system */
-#define __LASSERT(cond)						 \
-do {								    \
-	if (unlikely(!(cond))) {					\
-		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_EMERG, NULL);     \
-		cfs_trace_assertion_failed("ASSERTION("#cond") failed", \
-					   &msgdata);		   \
-	}							       \
-} while (0)
-
-#define __LASSERT_TAGE_INVARIANT(tage)				  \
-do {								    \
-	__LASSERT(tage != NULL);					\
-	__LASSERT(tage->page != NULL);				  \
-	__LASSERT(tage->used <= PAGE_CACHE_SIZE);			 \
-	__LASSERT(page_count(tage->page) > 0);		      \
-} while (0)
-
-#endif	/* LUSTRE_TRACEFILE_PRIVATE */
-
-#endif /* __LIBCFS_TRACEFILE_H__ */
diff --git a/drivers/staging/lustre/lustre/libcfs/workitem.c b/drivers/staging/lustre/lustre/libcfs/workitem.c
deleted file mode 100644
index 48009b775845..000000000000
--- a/drivers/staging/lustre/lustre/libcfs/workitem.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/workitem.c
- *
- * Author: Isaac Huang <isaac@clusterfs.com>
- *	 Liang Zhen  <zhen.liang@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#define CFS_WS_NAME_LEN	 16
-
-typedef struct cfs_wi_sched {
-	struct list_head		ws_list;	/* chain on global list */
-	/** serialised workitems */
-	spinlock_t		ws_lock;
-	/** where schedulers sleep */
-	wait_queue_head_t		ws_waitq;
-	/** concurrent workitems */
-	struct list_head		ws_runq;
-	/** rescheduled running-workitems, a workitem can be rescheduled
-	 * while running in wi_action(), but we don't to execute it again
-	 * unless it returns from wi_action(), so we put it on ws_rerunq
-	 * while rescheduling, and move it to runq after it returns
-	 * from wi_action() */
-	struct list_head		ws_rerunq;
-	/** CPT-table for this scheduler */
-	struct cfs_cpt_table	*ws_cptab;
-	/** CPT id for affinity */
-	int			ws_cpt;
-	/** number of scheduled workitems */
-	int			ws_nscheduled;
-	/** started scheduler thread, protected by cfs_wi_data::wi_glock */
-	unsigned int		ws_nthreads:30;
-	/** shutting down, protected by cfs_wi_data::wi_glock */
-	unsigned int		ws_stopping:1;
-	/** serialize starting thread, protected by cfs_wi_data::wi_glock */
-	unsigned int		ws_starting:1;
-	/** scheduler name */
-	char			ws_name[CFS_WS_NAME_LEN];
-} cfs_wi_sched_t;
-
-static struct cfs_workitem_data {
-	/** serialize */
-	spinlock_t		wi_glock;
-	/** list of all schedulers */
-	struct list_head		wi_scheds;
-	/** WI module is initialized */
-	int			wi_init;
-	/** shutting down the whole WI module */
-	int			wi_stopping;
-} cfs_wi_data;
-
-static inline void
-cfs_wi_sched_lock(cfs_wi_sched_t *sched)
-{
-	spin_lock(&sched->ws_lock);
-}
-
-static inline void
-cfs_wi_sched_unlock(cfs_wi_sched_t *sched)
-{
-	spin_unlock(&sched->ws_lock);
-}
-
-static inline int
-cfs_wi_sched_cansleep(cfs_wi_sched_t *sched)
-{
-	cfs_wi_sched_lock(sched);
-	if (sched->ws_stopping) {
-		cfs_wi_sched_unlock(sched);
-		return 0;
-	}
-
-	if (!list_empty(&sched->ws_runq)) {
-		cfs_wi_sched_unlock(sched);
-		return 0;
-	}
-	cfs_wi_sched_unlock(sched);
-	return 1;
-}
-
-
-/* XXX:
- * 0. it only works when called from wi->wi_action.
- * 1. when it returns no one shall try to schedule the workitem.
- */
-void
-cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
-{
-	LASSERT(!in_interrupt()); /* because we use plain spinlock */
-	LASSERT(!sched->ws_stopping);
-
-	cfs_wi_sched_lock(sched);
-
-	LASSERT(wi->wi_running);
-	if (wi->wi_scheduled) { /* cancel pending schedules */
-		LASSERT(!list_empty(&wi->wi_list));
-		list_del_init(&wi->wi_list);
-
-		LASSERT(sched->ws_nscheduled > 0);
-		sched->ws_nscheduled--;
-	}
-
-	LASSERT(list_empty(&wi->wi_list));
-
-	wi->wi_scheduled = 1; /* LBUG future schedule attempts */
-	cfs_wi_sched_unlock(sched);
-
-	return;
-}
-EXPORT_SYMBOL(cfs_wi_exit);
-
-/**
- * cancel schedule request of workitem \a wi
- */
-int
-cfs_wi_deschedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
-{
-	int	rc;
-
-	LASSERT(!in_interrupt()); /* because we use plain spinlock */
-	LASSERT(!sched->ws_stopping);
-
-	/*
-	 * return 0 if it's running already, otherwise return 1, which
-	 * means the workitem will not be scheduled and will not have
-	 * any race with wi_action.
-	 */
-	cfs_wi_sched_lock(sched);
-
-	rc = !(wi->wi_running);
-
-	if (wi->wi_scheduled) { /* cancel pending schedules */
-		LASSERT(!list_empty(&wi->wi_list));
-		list_del_init(&wi->wi_list);
-
-		LASSERT(sched->ws_nscheduled > 0);
-		sched->ws_nscheduled--;
-
-		wi->wi_scheduled = 0;
-	}
-
-	LASSERT (list_empty(&wi->wi_list));
-
-	cfs_wi_sched_unlock(sched);
-	return rc;
-}
-EXPORT_SYMBOL(cfs_wi_deschedule);
-
-/*
- * Workitem scheduled with (serial == 1) is strictly serialised not only with
- * itself, but also with others scheduled this way.
- *
- * Now there's only one static serialised queue, but in the future more might
- * be added, and even dynamic creation of serialised queues might be supported.
- */
-void
-cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
-{
-	LASSERT(!in_interrupt()); /* because we use plain spinlock */
-	LASSERT(!sched->ws_stopping);
-
-	cfs_wi_sched_lock(sched);
-
-	if (!wi->wi_scheduled) {
-		LASSERT (list_empty(&wi->wi_list));
-
-		wi->wi_scheduled = 1;
-		sched->ws_nscheduled++;
-		if (!wi->wi_running) {
-			list_add_tail(&wi->wi_list, &sched->ws_runq);
-			wake_up(&sched->ws_waitq);
-		} else {
-			list_add(&wi->wi_list, &sched->ws_rerunq);
-		}
-	}
-
-	LASSERT (!list_empty(&wi->wi_list));
-	cfs_wi_sched_unlock(sched);
-	return;
-}
-EXPORT_SYMBOL(cfs_wi_schedule);
-
-
-static int
-cfs_wi_scheduler (void *arg)
-{
-	struct cfs_wi_sched	*sched = (cfs_wi_sched_t *)arg;
-
-	cfs_block_allsigs();
-
-	/* CPT affinity scheduler? */
-	if (sched->ws_cptab != NULL)
-		cfs_cpt_bind(sched->ws_cptab, sched->ws_cpt);
-
-	spin_lock(&cfs_wi_data.wi_glock);
-
-	LASSERT(sched->ws_starting == 1);
-	sched->ws_starting--;
-	sched->ws_nthreads++;
-
-	spin_unlock(&cfs_wi_data.wi_glock);
-
-	cfs_wi_sched_lock(sched);
-
-	while (!sched->ws_stopping) {
-		int	     nloops = 0;
-		int	     rc;
-		cfs_workitem_t *wi;
-
-		while (!list_empty(&sched->ws_runq) &&
-		       nloops < CFS_WI_RESCHED) {
-			wi = list_entry(sched->ws_runq.next,
-					    cfs_workitem_t, wi_list);
-			LASSERT(wi->wi_scheduled && !wi->wi_running);
-
-			list_del_init(&wi->wi_list);
-
-			LASSERT(sched->ws_nscheduled > 0);
-			sched->ws_nscheduled--;
-
-			wi->wi_running   = 1;
-			wi->wi_scheduled = 0;
-
-
-			cfs_wi_sched_unlock(sched);
-			nloops++;
-
-			rc = (*wi->wi_action) (wi);
-
-			cfs_wi_sched_lock(sched);
-			if (rc != 0) /* WI should be dead, even be freed! */
-				continue;
-
-			wi->wi_running = 0;
-			if (list_empty(&wi->wi_list))
-				continue;
-
-			LASSERT(wi->wi_scheduled);
-			/* wi is rescheduled, should be on rerunq now, we
-			 * move it to runq so it can run action now */
-			list_move_tail(&wi->wi_list, &sched->ws_runq);
-		}
-
-		if (!list_empty(&sched->ws_runq)) {
-			cfs_wi_sched_unlock(sched);
-			/* don't sleep because some workitems still
-			 * expect me to come back soon */
-			cond_resched();
-			cfs_wi_sched_lock(sched);
-			continue;
-		}
-
-		cfs_wi_sched_unlock(sched);
-		rc = wait_event_interruptible_exclusive(sched->ws_waitq,
-						!cfs_wi_sched_cansleep(sched));
-		cfs_wi_sched_lock(sched);
-	}
-
-	cfs_wi_sched_unlock(sched);
-
-	spin_lock(&cfs_wi_data.wi_glock);
-	sched->ws_nthreads--;
-	spin_unlock(&cfs_wi_data.wi_glock);
-
-	return 0;
-}
-
-
-void
-cfs_wi_sched_destroy(struct cfs_wi_sched *sched)
-{
-	int	i;
-
-	LASSERT(cfs_wi_data.wi_init);
-	LASSERT(!cfs_wi_data.wi_stopping);
-
-	spin_lock(&cfs_wi_data.wi_glock);
-	if (sched->ws_stopping) {
-		CDEBUG(D_INFO, "%s is in progress of stopping\n",
-		       sched->ws_name);
-		spin_unlock(&cfs_wi_data.wi_glock);
-		return;
-	}
-
-	LASSERT(!list_empty(&sched->ws_list));
-	sched->ws_stopping = 1;
-
-	spin_unlock(&cfs_wi_data.wi_glock);
-
-	i = 2;
-	wake_up_all(&sched->ws_waitq);
-
-	spin_lock(&cfs_wi_data.wi_glock);
-	while (sched->ws_nthreads > 0) {
-		CDEBUG(IS_PO2(++i) ? D_WARNING : D_NET,
-		       "waiting for %d threads of WI sched[%s] to terminate\n",
-		       sched->ws_nthreads, sched->ws_name);
-
-		spin_unlock(&cfs_wi_data.wi_glock);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1) / 20);
-		spin_lock(&cfs_wi_data.wi_glock);
-	}
-
-	list_del(&sched->ws_list);
-
-	spin_unlock(&cfs_wi_data.wi_glock);
-	LASSERT(sched->ws_nscheduled == 0);
-
-	LIBCFS_FREE(sched, sizeof(*sched));
-}
-EXPORT_SYMBOL(cfs_wi_sched_destroy);
-
-int
-cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab,
-		    int cpt, int nthrs, struct cfs_wi_sched **sched_pp)
-{
-	struct cfs_wi_sched	*sched;
-	int			rc;
-
-	LASSERT(cfs_wi_data.wi_init);
-	LASSERT(!cfs_wi_data.wi_stopping);
-	LASSERT(cptab == NULL || cpt == CFS_CPT_ANY ||
-		(cpt >= 0 && cpt < cfs_cpt_number(cptab)));
-
-	LIBCFS_ALLOC(sched, sizeof(*sched));
-	if (sched == NULL)
-		return -ENOMEM;
-
-	strncpy(sched->ws_name, name, CFS_WS_NAME_LEN);
-	sched->ws_name[CFS_WS_NAME_LEN - 1] = '\0';
-	sched->ws_cptab = cptab;
-	sched->ws_cpt = cpt;
-
-	spin_lock_init(&sched->ws_lock);
-	init_waitqueue_head(&sched->ws_waitq);
-	INIT_LIST_HEAD(&sched->ws_runq);
-	INIT_LIST_HEAD(&sched->ws_rerunq);
-	INIT_LIST_HEAD(&sched->ws_list);
-
-	rc = 0;
-	while (nthrs > 0)  {
-		char	name[16];
-		struct task_struct *task;
-
-		spin_lock(&cfs_wi_data.wi_glock);
-		while (sched->ws_starting > 0) {
-			spin_unlock(&cfs_wi_data.wi_glock);
-			schedule();
-			spin_lock(&cfs_wi_data.wi_glock);
-		}
-
-		sched->ws_starting++;
-		spin_unlock(&cfs_wi_data.wi_glock);
-
-		if (sched->ws_cptab != NULL && sched->ws_cpt >= 0) {
-			snprintf(name, sizeof(name), "%s_%02d_%02u",
-				 sched->ws_name, sched->ws_cpt,
-				 sched->ws_nthreads);
-		} else {
-			snprintf(name, sizeof(name), "%s_%02u",
-				 sched->ws_name, sched->ws_nthreads);
-		}
-
-		task = kthread_run(cfs_wi_scheduler, sched, "%s", name);
-		if (!IS_ERR(task)) {
-			nthrs--;
-			continue;
-		}
-		rc = PTR_ERR(task);
-
-		CERROR("Failed to create thread for WI scheduler %s: %d\n",
-		       name, rc);
-
-		spin_lock(&cfs_wi_data.wi_glock);
-
-		/* make up for cfs_wi_sched_destroy */
-		list_add(&sched->ws_list, &cfs_wi_data.wi_scheds);
-		sched->ws_starting--;
-
-		spin_unlock(&cfs_wi_data.wi_glock);
-
-		cfs_wi_sched_destroy(sched);
-		return rc;
-	}
-	spin_lock(&cfs_wi_data.wi_glock);
-	list_add(&sched->ws_list, &cfs_wi_data.wi_scheds);
-	spin_unlock(&cfs_wi_data.wi_glock);
-
-	*sched_pp = sched;
-	return 0;
-}
-EXPORT_SYMBOL(cfs_wi_sched_create);
-
-int
-cfs_wi_startup(void)
-{
-	memset(&cfs_wi_data, 0, sizeof(cfs_wi_data));
-
-	spin_lock_init(&cfs_wi_data.wi_glock);
-	INIT_LIST_HEAD(&cfs_wi_data.wi_scheds);
-	cfs_wi_data.wi_init = 1;
-
-	return 0;
-}
-
-void
-cfs_wi_shutdown(void)
-{
-	struct cfs_wi_sched	*sched;
-
-	spin_lock(&cfs_wi_data.wi_glock);
-	cfs_wi_data.wi_stopping = 1;
-	spin_unlock(&cfs_wi_data.wi_glock);
-
-	/* nobody should contend on this list */
-	list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) {
-		sched->ws_stopping = 1;
-		wake_up_all(&sched->ws_waitq);
-	}
-
-	list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) {
-		spin_lock(&cfs_wi_data.wi_glock);
-
-		while (sched->ws_nthreads != 0) {
-			spin_unlock(&cfs_wi_data.wi_glock);
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			schedule_timeout(cfs_time_seconds(1) / 20);
-			spin_lock(&cfs_wi_data.wi_glock);
-		}
-		spin_unlock(&cfs_wi_data.wi_glock);
-	}
-	while (!list_empty(&cfs_wi_data.wi_scheds)) {
-		sched = list_entry(cfs_wi_data.wi_scheds.next,
-				       struct cfs_wi_sched, ws_list);
-		list_del(&sched->ws_list);
-		LIBCFS_FREE(sched, sizeof(*sched));
-	}
-
-	cfs_wi_data.wi_stopping = 0;
-	cfs_wi_data.wi_init = 0;
-}
diff --git a/drivers/staging/lustre/lustre/llite/Makefile b/drivers/staging/lustre/lustre/llite/Makefile
deleted file mode 100644
index 2cbc46838fdd..000000000000
--- a/drivers/staging/lustre/lustre/llite/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += lustre.o
-obj-$(CONFIG_LUSTRE_LLITE_LLOOP) += llite_lloop.o
-lustre-y := dcache.o dir.o file.o llite_close.o llite_lib.o llite_nfs.o \
-	    rw.o namei.o symlink.o llite_mmap.o \
-	    xattr.o xattr_cache.o remote_perm.o llite_rmtacl.o llite_capa.o \
-	    rw26.o super25.o statahead.o \
-	    ../lclient/glimpse.o ../lclient/lcommon_cl.o ../lclient/lcommon_misc.o \
-	    vvp_dev.o vvp_page.o vvp_lock.o vvp_io.o vvp_object.o lproc_llite.o
-
-llite_lloop-y := lloop.o
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
deleted file mode 100644
index b86685912d28..000000000000
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ /dev/null
@@ -1,362 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/quotaops.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/obd_support.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre/lustre_idl.h"
-#include "../include/lustre_dlm.h"
-
-#include "llite_internal.h"
-
-static void free_dentry_data(struct rcu_head *head)
-{
-	struct ll_dentry_data *lld;
-
-	lld = container_of(head, struct ll_dentry_data, lld_rcu_head);
-	kfree(lld);
-}
-
-/* should NOT be called with the dcache lock, see fs/dcache.c */
-static void ll_release(struct dentry *de)
-{
-	struct ll_dentry_data *lld;
-
-	LASSERT(de != NULL);
-	lld = ll_d2d(de);
-	if (lld == NULL) /* NFS copies the de->d_op methods (bug 4655) */
-		return;
-
-	if (lld->lld_it) {
-		ll_intent_release(lld->lld_it);
-		kfree(lld->lld_it);
-	}
-
-	de->d_fsdata = NULL;
-	call_rcu(&lld->lld_rcu_head, free_dentry_data);
-}
-
-/* Compare if two dentries are the same.  Don't match if the existing dentry
- * is marked invalid.  Returns 1 if different, 0 if the same.
- *
- * This avoids a race where ll_lookup_it() instantiates a dentry, but we get
- * an AST before calling d_revalidate_it().  The dentry still exists (marked
- * INVALID) so d_lookup() matches it, but we have no lock on it (so
- * lock_match() fails) and we spin around real_lookup(). */
-static int ll_dcompare(const struct dentry *parent, const struct dentry *dentry,
-		       unsigned int len, const char *str,
-		       const struct qstr *name)
-{
-	if (len != name->len)
-		return 1;
-
-	if (memcmp(str, name->name, len))
-		return 1;
-
-	CDEBUG(D_DENTRY, "found name %.*s(%p) flags %#x refc %d\n",
-	       name->len, name->name, dentry, dentry->d_flags,
-	       d_count(dentry));
-
-	/* mountpoint is always valid */
-	if (d_mountpoint((struct dentry *)dentry))
-		return 0;
-
-	if (d_lustre_invalid(dentry))
-		return 1;
-
-	return 0;
-}
-
-static inline int return_if_equal(struct ldlm_lock *lock, void *data)
-{
-	if ((lock->l_flags &
-	     (LDLM_FL_CANCELING | LDLM_FL_DISCARD_DATA)) ==
-	    (LDLM_FL_CANCELING | LDLM_FL_DISCARD_DATA))
-		return LDLM_ITER_CONTINUE;
-	return LDLM_ITER_STOP;
-}
-
-/* find any ldlm lock of the inode in mdc and lov
- * return 0    not find
- *	1    find one
- *      < 0    error */
-static int find_cbdata(struct inode *inode)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct lov_stripe_md *lsm;
-	int rc = 0;
-
-	LASSERT(inode);
-	rc = md_find_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
-			    return_if_equal, NULL);
-	if (rc != 0)
-		return rc;
-
-	lsm = ccc_inode_lsm_get(inode);
-	if (lsm == NULL)
-		return rc;
-
-	rc = obd_find_cbdata(sbi->ll_dt_exp, lsm, return_if_equal, NULL);
-	ccc_inode_lsm_put(inode, lsm);
-
-	return rc;
-}
-
-/**
- * Called when last reference to a dentry is dropped and dcache wants to know
- * whether or not it should cache it:
- * - return 1 to delete the dentry immediately
- * - return 0 to cache the dentry
- * Should NOT be called with the dcache lock, see fs/dcache.c
- */
-static int ll_ddelete(const struct dentry *de)
-{
-	LASSERT(de);
-
-	CDEBUG(D_DENTRY, "%s dentry %pd (%p, parent %p, inode %p) %s%s\n",
-	       d_lustre_invalid((struct dentry *)de) ? "deleting" : "keeping",
-	       de, de, de->d_parent, d_inode(de),
-	       d_unhashed(de) ? "" : "hashed,",
-	       list_empty(&de->d_subdirs) ? "" : "subdirs");
-
-	/* kernel >= 2.6.38 last refcount is decreased after this function. */
-	LASSERT(d_count(de) == 1);
-
-	/* Disable this piece of code temporarily because this is called
-	 * inside dcache_lock so it's not appropriate to do lots of work
-	 * here. ATTENTION: Before this piece of code enabling, LU-2487 must be
-	 * resolved. */
-#if 0
-	/* if not ldlm lock for this inode, set i_nlink to 0 so that
-	 * this inode can be recycled later b=20433 */
-	if (d_really_is_positive(de) && !find_cbdata(d_inode(de)))
-		clear_nlink(d_inode(de));
-#endif
-
-	if (d_lustre_invalid((struct dentry *)de))
-		return 1;
-	return 0;
-}
-
-int ll_d_init(struct dentry *de)
-{
-	LASSERT(de != NULL);
-
-	CDEBUG(D_DENTRY, "ldd on dentry %pd (%p) parent %p inode %p refc %d\n",
-		de, de, de->d_parent, d_inode(de),
-		d_count(de));
-
-	if (de->d_fsdata == NULL) {
-		struct ll_dentry_data *lld;
-
-		lld = kzalloc(sizeof(*lld), GFP_NOFS);
-		if (likely(lld)) {
-			spin_lock(&de->d_lock);
-			if (likely(de->d_fsdata == NULL)) {
-				de->d_fsdata = lld;
-				__d_lustre_invalidate(de);
-			} else {
-				kfree(lld);
-			}
-			spin_unlock(&de->d_lock);
-		} else {
-			return -ENOMEM;
-		}
-	}
-	LASSERT(de->d_op == &ll_d_ops);
-
-	return 0;
-}
-
-void ll_intent_drop_lock(struct lookup_intent *it)
-{
-	if (it->it_op && it->d.lustre.it_lock_mode) {
-		struct lustre_handle handle;
-
-		handle.cookie = it->d.lustre.it_lock_handle;
-
-		CDEBUG(D_DLMTRACE, "releasing lock with cookie %#llx from it %p\n",
-		       handle.cookie, it);
-		ldlm_lock_decref(&handle, it->d.lustre.it_lock_mode);
-
-		/* bug 494: intent_release may be called multiple times, from
-		 * this thread and we don't want to double-decref this lock */
-		it->d.lustre.it_lock_mode = 0;
-		if (it->d.lustre.it_remote_lock_mode != 0) {
-			handle.cookie = it->d.lustre.it_remote_lock_handle;
-
-			CDEBUG(D_DLMTRACE, "releasing remote lock with cookie%#llx from it %p\n",
-			       handle.cookie, it);
-			ldlm_lock_decref(&handle,
-					 it->d.lustre.it_remote_lock_mode);
-			it->d.lustre.it_remote_lock_mode = 0;
-		}
-	}
-}
-
-void ll_intent_release(struct lookup_intent *it)
-{
-	CDEBUG(D_INFO, "intent %p released\n", it);
-	ll_intent_drop_lock(it);
-	/* We are still holding extra reference on a request, need to free it */
-	if (it_disposition(it, DISP_ENQ_OPEN_REF))
-		ptlrpc_req_finished(it->d.lustre.it_data); /* ll_file_open */
-
-	if (it_disposition(it, DISP_ENQ_CREATE_REF)) /* create rec */
-		ptlrpc_req_finished(it->d.lustre.it_data);
-
-	it->d.lustre.it_disposition = 0;
-	it->d.lustre.it_data = NULL;
-}
-
-void ll_invalidate_aliases(struct inode *inode)
-{
-	struct dentry *dentry;
-
-	LASSERT(inode != NULL);
-
-	CDEBUG(D_INODE, "marking dentries for ino %lu/%u(%p) invalid\n",
-	       inode->i_ino, inode->i_generation, inode);
-
-	ll_lock_dcache(inode);
-	hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
-		CDEBUG(D_DENTRY, "dentry in drop %pd (%p) parent %p inode %p flags %d\n",
-		       dentry, dentry, dentry->d_parent,
-		       d_inode(dentry), dentry->d_flags);
-
-		d_lustre_invalidate(dentry, 0);
-	}
-	ll_unlock_dcache(inode);
-}
-
-int ll_revalidate_it_finish(struct ptlrpc_request *request,
-			    struct lookup_intent *it,
-			    struct inode *inode)
-{
-	int rc = 0;
-
-	if (!request)
-		return 0;
-
-	if (it_disposition(it, DISP_LOOKUP_NEG))
-		return -ENOENT;
-
-	rc = ll_prep_inode(&inode, request, NULL, it);
-
-	return rc;
-}
-
-void ll_lookup_finish_locks(struct lookup_intent *it, struct inode *inode)
-{
-	LASSERT(it != NULL);
-
-	if (it->d.lustre.it_lock_mode && inode != NULL) {
-		struct ll_sb_info *sbi = ll_i2sbi(inode);
-
-		CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
-		       inode, inode->i_ino, inode->i_generation);
-		ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL);
-	}
-
-	/* drop lookup or getattr locks immediately */
-	if (it->it_op == IT_LOOKUP || it->it_op == IT_GETATTR) {
-		/* on 2.6 there are situation when several lookups and
-		 * revalidations may be requested during single operation.
-		 * therefore, we don't release intent here -bzzz */
-		ll_intent_drop_lock(it);
-	}
-}
-
-static int ll_revalidate_dentry(struct dentry *dentry,
-				unsigned int lookup_flags)
-{
-	struct inode *dir = d_inode(dentry->d_parent);
-
-	/*
-	 * if open&create is set, talk to MDS to make sure file is created if
-	 * necessary, because we can't do this in ->open() later since that's
-	 * called on an inode. return 0 here to let lookup to handle this.
-	 */
-	if ((lookup_flags & (LOOKUP_OPEN | LOOKUP_CREATE)) ==
-	    (LOOKUP_OPEN | LOOKUP_CREATE))
-		return 0;
-
-	if (lookup_flags & (LOOKUP_PARENT | LOOKUP_OPEN | LOOKUP_CREATE))
-		return 1;
-
-	if (d_need_statahead(dir, dentry) <= 0)
-		return 1;
-
-	if (lookup_flags & LOOKUP_RCU)
-		return -ECHILD;
-
-	do_statahead_enter(dir, &dentry, d_inode(dentry) == NULL);
-	ll_statahead_mark(dir, dentry);
-	return 1;
-}
-
-/*
- * Always trust cached dentries. Update statahead window if necessary.
- */
-static int ll_revalidate_nd(struct dentry *dentry, unsigned int flags)
-{
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, flags=%u\n",
-	       dentry, flags);
-
-	return ll_revalidate_dentry(dentry, flags);
-}
-
-
-static void ll_d_iput(struct dentry *de, struct inode *inode)
-{
-	LASSERT(inode);
-	if (!find_cbdata(inode))
-		clear_nlink(inode);
-	iput(inode);
-}
-
-const struct dentry_operations ll_d_ops = {
-	.d_revalidate = ll_revalidate_nd,
-	.d_release = ll_release,
-	.d_delete  = ll_ddelete,
-	.d_iput    = ll_d_iput,
-	.d_compare = ll_dcompare,
-};
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
deleted file mode 100644
index 769b61193d87..000000000000
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ /dev/null
@@ -1,1925 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/dir.c
- *
- * Directory code for lustre client.
- */
-
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include <linux/mm.h>
-#include <linux/uaccess.h>
-#include <linux/buffer_head.h>   /* for wait_on_buffer */
-#include <linux/pagevec.h>
-#include <linux/prefetch.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/obd_support.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_lib.h"
-#include "../include/lustre/lustre_idl.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_fid.h"
-#include "llite_internal.h"
-
-/*
- * (new) readdir implementation overview.
- *
- * Original lustre readdir implementation cached exact copy of raw directory
- * pages on the client. These pages were indexed in client page cache by
- * logical offset in the directory file. This design, while very simple and
- * intuitive had some inherent problems:
- *
- *     . it implies that byte offset to the directory entry serves as a
- *     telldir(3)/seekdir(3) cookie, but that offset is not stable: in
- *     ext3/htree directory entries may move due to splits, and more
- *     importantly,
- *
- *     . it is incompatible with the design of split directories for cmd3,
- *     that assumes that names are distributed across nodes based on their
- *     hash, and so readdir should be done in hash order.
- *
- * New readdir implementation does readdir in hash order, and uses hash of a
- * file name as a telldir/seekdir cookie. This led to number of complications:
- *
- *     . hash is not unique, so it cannot be used to index cached directory
- *     pages on the client (note, that it requires a whole pageful of hash
- *     collided entries to cause two pages to have identical hashes);
- *
- *     . hash is not unique, so it cannot, strictly speaking, be used as an
- *     entry cookie. ext3/htree has the same problem and lustre implementation
- *     mimics their solution: seekdir(hash) positions directory at the first
- *     entry with the given hash.
- *
- * Client side.
- *
- * 0. caching
- *
- * Client caches directory pages using hash of the first entry as an index. As
- * noted above hash is not unique, so this solution doesn't work as is:
- * special processing is needed for "page hash chains" (i.e., sequences of
- * pages filled with entries all having the same hash value).
- *
- * First, such chains have to be detected. To this end, server returns to the
- * client the hash of the first entry on the page next to one returned. When
- * client detects that this hash is the same as hash of the first entry on the
- * returned page, page hash collision has to be handled. Pages in the
- * hash chain, except first one, are termed "overflow pages".
- *
- * Solution to index uniqueness problem is to not cache overflow
- * pages. Instead, when page hash collision is detected, all overflow pages
- * from emerging chain are immediately requested from the server and placed in
- * a special data structure (struct ll_dir_chain). This data structure is used
- * by ll_readdir() to process entries from overflow pages. When readdir
- * invocation finishes, overflow pages are discarded. If page hash collision
- * chain weren't completely processed, next call to readdir will again detect
- * page hash collision, again read overflow pages in, process next portion of
- * entries and again discard the pages. This is not as wasteful as it looks,
- * because, given reasonable hash, page hash collisions are extremely rare.
- *
- * 1. directory positioning
- *
- * When seekdir(hash) is called, original
- *
- *
- *
- *
- *
- *
- *
- *
- * Server.
- *
- * identification of and access to overflow pages
- *
- * page format
- *
- * Page in MDS_READPAGE RPC is packed in LU_PAGE_SIZE, and each page contains
- * a header lu_dirpage which describes the start/end hash, and whether this
- * page is empty (contains no dir entry) or hash collide with next page.
- * After client receives reply, several pages will be integrated into dir page
- * in PAGE_CACHE_SIZE (if PAGE_CACHE_SIZE greater than LU_PAGE_SIZE), and the
- * lu_dirpage for this integrated page will be adjusted. See
- * lmv_adjust_dirpages().
- *
- */
-
-/* returns the page unlocked, but with a reference */
-static int ll_dir_filler(void *_hash, struct page *page0)
-{
-	struct inode *inode = page0->mapping->host;
-	int hash64 = ll_i2sbi(inode)->ll_flags & LL_SBI_64BIT_HASH;
-	struct obd_export *exp = ll_i2sbi(inode)->ll_md_exp;
-	struct ptlrpc_request *request;
-	struct mdt_body *body;
-	struct md_op_data *op_data;
-	__u64 hash = *((__u64 *)_hash);
-	struct page **page_pool;
-	struct page *page;
-	struct lu_dirpage *dp;
-	int max_pages = ll_i2sbi(inode)->ll_md_brw_size >> PAGE_CACHE_SHIFT;
-	int nrdpgs = 0; /* number of pages read actually */
-	int npages;
-	int i;
-	int rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) hash %llu\n",
-	       inode->i_ino, inode->i_generation, inode, hash);
-
-	LASSERT(max_pages > 0 && max_pages <= MD_MAX_BRW_PAGES);
-
-	page_pool = kcalloc(max_pages, sizeof(page), GFP_NOFS);
-	if (page_pool) {
-		page_pool[0] = page0;
-	} else {
-		page_pool = &page0;
-		max_pages = 1;
-	}
-	for (npages = 1; npages < max_pages; npages++) {
-		page = page_cache_alloc_cold(inode->i_mapping);
-		if (!page)
-			break;
-		page_pool[npages] = page;
-	}
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-				     LUSTRE_OPC_ANY, NULL);
-	op_data->op_npages = npages;
-	op_data->op_offset = hash;
-	rc = md_readpage(exp, op_data, page_pool, &request);
-	ll_finish_md_op_data(op_data);
-	if (rc < 0) {
-		/* page0 is special, which was added into page cache early */
-		delete_from_page_cache(page0);
-	} else if (rc == 0) {
-		body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
-		/* Checked by mdc_readpage() */
-		LASSERT(body != NULL);
-
-		if (body->valid & OBD_MD_FLSIZE)
-			cl_isize_write(inode, body->size);
-
-		nrdpgs = (request->rq_bulk->bd_nob_transferred+PAGE_CACHE_SIZE-1)
-			 >> PAGE_CACHE_SHIFT;
-		SetPageUptodate(page0);
-	}
-	unlock_page(page0);
-	ptlrpc_req_finished(request);
-
-	CDEBUG(D_VFSTRACE, "read %d/%d pages\n", nrdpgs, npages);
-
-	for (i = 1; i < npages; i++) {
-		unsigned long offset;
-		int ret;
-
-		page = page_pool[i];
-
-		if (rc < 0 || i >= nrdpgs) {
-			page_cache_release(page);
-			continue;
-		}
-
-		SetPageUptodate(page);
-
-		dp = kmap(page);
-		hash = le64_to_cpu(dp->ldp_hash_start);
-		kunmap(page);
-
-		offset = hash_x_index(hash, hash64);
-
-		prefetchw(&page->flags);
-		ret = add_to_page_cache_lru(page, inode->i_mapping, offset,
-					    GFP_KERNEL);
-		if (ret == 0) {
-			unlock_page(page);
-		} else {
-			CDEBUG(D_VFSTRACE, "page %lu add to page cache failed: %d\n",
-			       offset, ret);
-		}
-		page_cache_release(page);
-	}
-
-	if (page_pool != &page0)
-		kfree(page_pool);
-	return rc;
-}
-
-static void ll_check_page(struct inode *dir, struct page *page)
-{
-	/* XXX: check page format later */
-	SetPageChecked(page);
-}
-
-void ll_release_page(struct page *page, int remove)
-{
-	kunmap(page);
-	if (remove) {
-		lock_page(page);
-		if (likely(page->mapping != NULL))
-			truncate_complete_page(page->mapping, page);
-		unlock_page(page);
-	}
-	page_cache_release(page);
-}
-
-/*
- * Find, kmap and return page that contains given hash.
- */
-static struct page *ll_dir_page_locate(struct inode *dir, __u64 *hash,
-				       __u64 *start, __u64 *end)
-{
-	int hash64 = ll_i2sbi(dir)->ll_flags & LL_SBI_64BIT_HASH;
-	struct address_space *mapping = dir->i_mapping;
-	/*
-	 * Complement of hash is used as an index so that
-	 * radix_tree_gang_lookup() can be used to find a page with starting
-	 * hash _smaller_ than one we are looking for.
-	 */
-	unsigned long offset = hash_x_index(*hash, hash64);
-	struct page *page;
-	int found;
-
-	spin_lock_irq(&mapping->tree_lock);
-	found = radix_tree_gang_lookup(&mapping->page_tree,
-				       (void **)&page, offset, 1);
-	if (found > 0 && !radix_tree_exceptional_entry(page)) {
-		struct lu_dirpage *dp;
-
-		page_cache_get(page);
-		spin_unlock_irq(&mapping->tree_lock);
-		/*
-		 * In contrast to find_lock_page() we are sure that directory
-		 * page cannot be truncated (while DLM lock is held) and,
-		 * hence, can avoid restart.
-		 *
-		 * In fact, page cannot be locked here at all, because
-		 * ll_dir_filler() does synchronous io.
-		 */
-		wait_on_page_locked(page);
-		if (PageUptodate(page)) {
-			dp = kmap(page);
-			if (BITS_PER_LONG == 32 && hash64) {
-				*start = le64_to_cpu(dp->ldp_hash_start) >> 32;
-				*end   = le64_to_cpu(dp->ldp_hash_end) >> 32;
-				*hash  = *hash >> 32;
-			} else {
-				*start = le64_to_cpu(dp->ldp_hash_start);
-				*end   = le64_to_cpu(dp->ldp_hash_end);
-			}
-			LASSERTF(*start <= *hash, "start = %#llx,end = %#llx,hash = %#llx\n",
-				 *start, *end, *hash);
-			CDEBUG(D_VFSTRACE, "page %lu [%llu %llu], hash %llu\n",
-			       offset, *start, *end, *hash);
-			if (*hash > *end) {
-				ll_release_page(page, 0);
-				page = NULL;
-			} else if (*end != *start && *hash == *end) {
-				/*
-				 * upon hash collision, remove this page,
-				 * otherwise put page reference, and
-				 * ll_get_dir_page() will issue RPC to fetch
-				 * the page we want.
-				 */
-				ll_release_page(page,
-				    le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
-				page = NULL;
-			}
-		} else {
-			page_cache_release(page);
-			page = ERR_PTR(-EIO);
-		}
-
-	} else {
-		spin_unlock_irq(&mapping->tree_lock);
-		page = NULL;
-	}
-	return page;
-}
-
-struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
-			     struct ll_dir_chain *chain)
-{
-	ldlm_policy_data_t policy = {.l_inodebits = {MDS_INODELOCK_UPDATE} };
-	struct address_space *mapping = dir->i_mapping;
-	struct lustre_handle lockh;
-	struct lu_dirpage *dp;
-	struct page *page;
-	ldlm_mode_t mode;
-	int rc;
-	__u64 start = 0;
-	__u64 end = 0;
-	__u64 lhash = hash;
-	struct ll_inode_info *lli = ll_i2info(dir);
-	int hash64 = ll_i2sbi(dir)->ll_flags & LL_SBI_64BIT_HASH;
-
-	mode = LCK_PR;
-	rc = md_lock_match(ll_i2sbi(dir)->ll_md_exp, LDLM_FL_BLOCK_GRANTED,
-			   ll_inode2fid(dir), LDLM_IBITS, &policy, mode, &lockh);
-	if (!rc) {
-		struct ldlm_enqueue_info einfo = {
-			.ei_type = LDLM_IBITS,
-			.ei_mode = mode,
-			.ei_cb_bl = ll_md_blocking_ast,
-			.ei_cb_cp = ldlm_completion_ast,
-		};
-		struct lookup_intent it = { .it_op = IT_READDIR };
-		struct ptlrpc_request *request;
-		struct md_op_data *op_data;
-
-		op_data = ll_prep_md_op_data(NULL, dir, dir, NULL, 0, 0,
-		LUSTRE_OPC_ANY, NULL);
-		if (IS_ERR(op_data))
-			return (void *)op_data;
-
-		rc = md_enqueue(ll_i2sbi(dir)->ll_md_exp, &einfo, &it,
-				op_data, &lockh, NULL, 0, NULL, 0);
-
-		ll_finish_md_op_data(op_data);
-
-		request = (struct ptlrpc_request *)it.d.lustre.it_data;
-		if (request)
-			ptlrpc_req_finished(request);
-		if (rc < 0) {
-			CERROR("lock enqueue: "DFID" at %llu: rc %d\n",
-				PFID(ll_inode2fid(dir)), hash, rc);
-			return ERR_PTR(rc);
-		}
-
-		CDEBUG(D_INODE, "setting lr_lvb_inode to inode %p (%lu/%u)\n",
-		       dir, dir->i_ino, dir->i_generation);
-		md_set_lock_data(ll_i2sbi(dir)->ll_md_exp,
-				 &it.d.lustre.it_lock_handle, dir, NULL);
-	} else {
-		/* for cross-ref object, l_ast_data of the lock may not be set,
-		 * we reset it here */
-		md_set_lock_data(ll_i2sbi(dir)->ll_md_exp, &lockh.cookie,
-				 dir, NULL);
-	}
-	ldlm_lock_dump_handle(D_OTHER, &lockh);
-
-	mutex_lock(&lli->lli_readdir_mutex);
-	page = ll_dir_page_locate(dir, &lhash, &start, &end);
-	if (IS_ERR(page)) {
-		CERROR("dir page locate: "DFID" at %llu: rc %ld\n",
-		       PFID(ll_inode2fid(dir)), lhash, PTR_ERR(page));
-		goto out_unlock;
-	} else if (page != NULL) {
-		/*
-		 * XXX nikita: not entirely correct handling of a corner case:
-		 * suppose hash chain of entries with hash value HASH crosses
-		 * border between pages P0 and P1. First both P0 and P1 are
-		 * cached, seekdir() is called for some entry from the P0 part
-		 * of the chain. Later P0 goes out of cache. telldir(HASH)
-		 * happens and finds P1, as it starts with matching hash
-		 * value. Remaining entries from P0 part of the chain are
-		 * skipped. (Is that really a bug?)
-		 *
-		 * Possible solutions: 0. don't cache P1 is such case, handle
-		 * it as an "overflow" page. 1. invalidate all pages at
-		 * once. 2. use HASH|1 as an index for P1.
-		 */
-		goto hash_collision;
-	}
-
-	page = read_cache_page(mapping, hash_x_index(hash, hash64),
-			       ll_dir_filler, &lhash);
-	if (IS_ERR(page)) {
-		CERROR("read cache page: "DFID" at %llu: rc %ld\n",
-		       PFID(ll_inode2fid(dir)), hash, PTR_ERR(page));
-		goto out_unlock;
-	}
-
-	wait_on_page_locked(page);
-	(void)kmap(page);
-	if (!PageUptodate(page)) {
-		CERROR("page not updated: "DFID" at %llu: rc %d\n",
-		       PFID(ll_inode2fid(dir)), hash, -5);
-		goto fail;
-	}
-	if (!PageChecked(page))
-		ll_check_page(dir, page);
-	if (PageError(page)) {
-		CERROR("page error: "DFID" at %llu: rc %d\n",
-		       PFID(ll_inode2fid(dir)), hash, -5);
-		goto fail;
-	}
-hash_collision:
-	dp = page_address(page);
-	if (BITS_PER_LONG == 32 && hash64) {
-		start = le64_to_cpu(dp->ldp_hash_start) >> 32;
-		end   = le64_to_cpu(dp->ldp_hash_end) >> 32;
-		lhash = hash >> 32;
-	} else {
-		start = le64_to_cpu(dp->ldp_hash_start);
-		end   = le64_to_cpu(dp->ldp_hash_end);
-		lhash = hash;
-	}
-	if (end == start) {
-		LASSERT(start == lhash);
-		CWARN("Page-wide hash collision: %llu\n", end);
-		if (BITS_PER_LONG == 32 && hash64)
-			CWARN("Real page-wide hash collision at [%llu %llu] with hash %llu\n",
-			      le64_to_cpu(dp->ldp_hash_start),
-			      le64_to_cpu(dp->ldp_hash_end), hash);
-		/*
-		 * Fetch whole overflow chain...
-		 *
-		 * XXX not yet.
-		 */
-		goto fail;
-	}
-out_unlock:
-	mutex_unlock(&lli->lli_readdir_mutex);
-	ldlm_lock_decref(&lockh, mode);
-	return page;
-
-fail:
-	ll_release_page(page, 1);
-	page = ERR_PTR(-EIO);
-	goto out_unlock;
-}
-
-int ll_dir_read(struct inode *inode, struct dir_context *ctx)
-{
-	struct ll_inode_info *info       = ll_i2info(inode);
-	struct ll_sb_info    *sbi	= ll_i2sbi(inode);
-	__u64		   pos		= ctx->pos;
-	int		   api32      = ll_need_32bit_api(sbi);
-	int		   hash64     = sbi->ll_flags & LL_SBI_64BIT_HASH;
-	struct page	  *page;
-	struct ll_dir_chain   chain;
-	int		   done = 0;
-	int		   rc = 0;
-
-	ll_dir_chain_init(&chain);
-
-	page = ll_get_dir_page(inode, pos, &chain);
-
-	while (rc == 0 && !done) {
-		struct lu_dirpage *dp;
-		struct lu_dirent  *ent;
-
-		if (!IS_ERR(page)) {
-			/*
-			 * If page is empty (end of directory is reached),
-			 * use this value.
-			 */
-			__u64 hash = MDS_DIR_END_OFF;
-			__u64 next;
-
-			dp = page_address(page);
-			for (ent = lu_dirent_start(dp); ent != NULL && !done;
-			     ent = lu_dirent_next(ent)) {
-				__u16	  type;
-				int	    namelen;
-				struct lu_fid  fid;
-				__u64	  lhash;
-				__u64	  ino;
-
-				/*
-				 * XXX: implement correct swabbing here.
-				 */
-
-				hash = le64_to_cpu(ent->lde_hash);
-				if (hash < pos)
-					/*
-					 * Skip until we find target hash
-					 * value.
-					 */
-					continue;
-
-				namelen = le16_to_cpu(ent->lde_namelen);
-				if (namelen == 0)
-					/*
-					 * Skip dummy record.
-					 */
-					continue;
-
-				if (api32 && hash64)
-					lhash = hash >> 32;
-				else
-					lhash = hash;
-				fid_le_to_cpu(&fid, &ent->lde_fid);
-				ino = cl_fid_build_ino(&fid, api32);
-				type = ll_dirent_type_get(ent);
-				ctx->pos = lhash;
-				/* For 'll_nfs_get_name_filldir()', it will try
-				 * to access the 'ent' through its 'lde_name',
-				 * so the parameter 'name' for 'ctx->actor()'
-				 * must be part of the 'ent'.
-				 */
-				done = !dir_emit(ctx, ent->lde_name,
-						 namelen, ino, type);
-			}
-			next = le64_to_cpu(dp->ldp_hash_end);
-			if (!done) {
-				pos = next;
-				if (pos == MDS_DIR_END_OFF) {
-					/*
-					 * End of directory reached.
-					 */
-					done = 1;
-					ll_release_page(page, 0);
-				} else if (1 /* chain is exhausted*/) {
-					/*
-					 * Normal case: continue to the next
-					 * page.
-					 */
-					ll_release_page(page,
-					    le32_to_cpu(dp->ldp_flags) &
-							LDF_COLLIDE);
-					next = pos;
-					page = ll_get_dir_page(inode, pos,
-							       &chain);
-				} else {
-					/*
-					 * go into overflow page.
-					 */
-					LASSERT(le32_to_cpu(dp->ldp_flags) &
-						LDF_COLLIDE);
-					ll_release_page(page, 1);
-				}
-			} else {
-				pos = hash;
-				ll_release_page(page, 0);
-			}
-		} else {
-			rc = PTR_ERR(page);
-			CERROR("error reading dir "DFID" at %lu: rc %d\n",
-			       PFID(&info->lli_fid), (unsigned long)pos, rc);
-		}
-	}
-
-	ctx->pos = pos;
-	ll_dir_chain_fini(&chain);
-	return rc;
-}
-
-static int ll_readdir(struct file *filp, struct dir_context *ctx)
-{
-	struct inode		*inode	= file_inode(filp);
-	struct ll_file_data	*lfd	= LUSTRE_FPRIVATE(filp);
-	struct ll_sb_info	*sbi	= ll_i2sbi(inode);
-	int			hash64	= sbi->ll_flags & LL_SBI_64BIT_HASH;
-	int			api32	= ll_need_32bit_api(sbi);
-	int			rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) pos %lu/%llu 32bit_api %d\n",
-	       inode->i_ino, inode->i_generation,
-	       inode, (unsigned long)lfd->lfd_pos, i_size_read(inode), api32);
-
-	if (lfd->lfd_pos == MDS_DIR_END_OFF) {
-		/*
-		 * end-of-file.
-		 */
-		rc = 0;
-		goto out;
-	}
-
-	ctx->pos = lfd->lfd_pos;
-	rc = ll_dir_read(inode, ctx);
-	lfd->lfd_pos = ctx->pos;
-	if (ctx->pos == MDS_DIR_END_OFF) {
-		if (api32)
-			ctx->pos = LL_DIR_END_OFF_32BIT;
-		else
-			ctx->pos = LL_DIR_END_OFF;
-	} else {
-		if (api32 && hash64)
-			ctx->pos >>= 32;
-	}
-	filp->f_version = inode->i_version;
-
-out:
-	if (!rc)
-		ll_stats_ops_tally(sbi, LPROC_LL_READDIR, 1);
-
-	return rc;
-}
-
-static int ll_send_mgc_param(struct obd_export *mgc, char *string)
-{
-	struct mgs_send_param *msp;
-	int rc = 0;
-
-	msp = kzalloc(sizeof(*msp), GFP_NOFS);
-	if (!msp)
-		return -ENOMEM;
-
-	strncpy(msp->mgs_param, string, MGS_PARAM_MAXLEN);
-	rc = obd_set_info_async(NULL, mgc, sizeof(KEY_SET_INFO), KEY_SET_INFO,
-				sizeof(struct mgs_send_param), msp, NULL);
-	if (rc)
-		CERROR("Failed to set parameter: %d\n", rc);
-	kfree(msp);
-
-	return rc;
-}
-
-static int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
-			       char *filename)
-{
-	struct ptlrpc_request *request = NULL;
-	struct md_op_data *op_data;
-	struct ll_sb_info *sbi = ll_i2sbi(dir);
-	int mode;
-	int err;
-
-	mode = (0755 & ~current_umask()) | S_IFDIR;
-	op_data = ll_prep_md_op_data(NULL, dir, NULL, filename,
-				     strlen(filename), mode, LUSTRE_OPC_MKDIR,
-				     lump);
-	if (IS_ERR(op_data)) {
-		err = PTR_ERR(op_data);
-		goto err_exit;
-	}
-
-	op_data->op_cli_flags |= CLI_SET_MEA;
-	err = md_create(sbi->ll_md_exp, op_data, lump, sizeof(*lump), mode,
-			from_kuid(&init_user_ns, current_fsuid()),
-			from_kgid(&init_user_ns, current_fsgid()),
-			cfs_curproc_cap_pack(), 0, &request);
-	ll_finish_md_op_data(op_data);
-	if (err)
-		goto err_exit;
-err_exit:
-	ptlrpc_req_finished(request);
-	return err;
-}
-
-int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
-		     int set_default)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct md_op_data *op_data;
-	struct ptlrpc_request *req = NULL;
-	int rc = 0;
-	struct lustre_sb_info *lsi = s2lsi(inode->i_sb);
-	struct obd_device *mgc = lsi->lsi_mgc;
-	int lum_size;
-
-	if (lump != NULL) {
-		/*
-		 * This is coming from userspace, so should be in
-		 * local endian.  But the MDS would like it in little
-		 * endian, so we swab it before we send it.
-		 */
-		switch (lump->lmm_magic) {
-		case LOV_USER_MAGIC_V1: {
-			if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V1))
-				lustre_swab_lov_user_md_v1(lump);
-			lum_size = sizeof(struct lov_user_md_v1);
-			break;
-		}
-		case LOV_USER_MAGIC_V3: {
-			if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V3))
-				lustre_swab_lov_user_md_v3(
-					(struct lov_user_md_v3 *)lump);
-			lum_size = sizeof(struct lov_user_md_v3);
-			break;
-		}
-		default: {
-			CDEBUG(D_IOCTL, "bad userland LOV MAGIC: %#08x != %#08x nor %#08x\n",
-			       lump->lmm_magic, LOV_USER_MAGIC_V1,
-			       LOV_USER_MAGIC_V3);
-			return -EINVAL;
-		}
-		}
-	} else {
-		lum_size = sizeof(struct lov_user_md_v1);
-	}
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	if (lump != NULL && lump->lmm_magic == cpu_to_le32(LMV_USER_MAGIC))
-		op_data->op_cli_flags |= CLI_SET_MEA;
-
-	/* swabbing is done in lov_setstripe() on server side */
-	rc = md_setattr(sbi->ll_md_exp, op_data, lump, lum_size,
-			NULL, 0, &req, NULL);
-	ll_finish_md_op_data(op_data);
-	ptlrpc_req_finished(req);
-	if (rc) {
-		if (rc != -EPERM && rc != -EACCES)
-			CERROR("mdc_setattr fails: rc = %d\n", rc);
-	}
-
-	/* In the following we use the fact that LOV_USER_MAGIC_V1 and
-	 LOV_USER_MAGIC_V3 have the same initial fields so we do not
-	 need to make the distinction between the 2 versions */
-	if (set_default && mgc->u.cli.cl_mgc_mgsexp) {
-		char *param = NULL;
-		char *buf;
-
-		param = kzalloc(MGS_PARAM_MAXLEN, GFP_NOFS);
-		if (!param)
-			return -ENOMEM;
-
-		buf = param;
-		/* Get fsname and assume devname to be -MDT0000. */
-		ll_get_fsname(inode->i_sb, buf, MTI_NAME_MAXLEN);
-		strcat(buf, "-MDT0000.lov");
-		buf += strlen(buf);
-
-		/* Set root stripesize */
-		sprintf(buf, ".stripesize=%u",
-			lump ? le32_to_cpu(lump->lmm_stripe_size) : 0);
-		rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
-		if (rc)
-			goto end;
-
-		/* Set root stripecount */
-		sprintf(buf, ".stripecount=%hd",
-			lump ? le16_to_cpu(lump->lmm_stripe_count) : 0);
-		rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
-		if (rc)
-			goto end;
-
-		/* Set root stripeoffset */
-		sprintf(buf, ".stripeoffset=%hd",
-			lump ? le16_to_cpu(lump->lmm_stripe_offset) :
-			(typeof(lump->lmm_stripe_offset))(-1));
-		rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
-
-end:
-		kfree(param);
-	}
-	return rc;
-}
-
-int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
-		     int *lmm_size, struct ptlrpc_request **request)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct mdt_body   *body;
-	struct lov_mds_md *lmm = NULL;
-	struct ptlrpc_request *req = NULL;
-	int rc, lmmsize;
-	struct md_op_data *op_data;
-
-	rc = ll_get_default_mdsize(sbi, &lmmsize);
-	if (rc)
-		return rc;
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
-				     0, lmmsize, LUSTRE_OPC_ANY,
-				     NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	op_data->op_valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
-	rc = md_getattr(sbi->ll_md_exp, op_data, &req);
-	ll_finish_md_op_data(op_data);
-	if (rc < 0) {
-		CDEBUG(D_INFO, "md_getattr failed on inode %lu/%u: rc %d\n",
-		       inode->i_ino,
-		       inode->i_generation, rc);
-		goto out;
-	}
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
-
-	lmmsize = body->eadatasize;
-
-	if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
-	    lmmsize == 0) {
-		rc = -ENODATA;
-		goto out;
-	}
-
-	lmm = req_capsule_server_sized_get(&req->rq_pill,
-					   &RMF_MDT_MD, lmmsize);
-	LASSERT(lmm != NULL);
-
-	/*
-	 * This is coming from the MDS, so is probably in
-	 * little endian.  We convert it to host endian before
-	 * passing it to userspace.
-	 */
-	/* We don't swab objects for directories */
-	switch (le32_to_cpu(lmm->lmm_magic)) {
-	case LOV_MAGIC_V1:
-		if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
-			lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
-		break;
-	case LOV_MAGIC_V3:
-		if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
-			lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
-		break;
-	default:
-		CERROR("unknown magic: %lX\n", (unsigned long)lmm->lmm_magic);
-		rc = -EPROTO;
-	}
-out:
-	*lmmp = lmm;
-	*lmm_size = lmmsize;
-	*request = req;
-	return rc;
-}
-
-/*
- *  Get MDT index for the inode.
- */
-int ll_get_mdt_idx(struct inode *inode)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct md_op_data *op_data;
-	int rc, mdtidx;
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0,
-				     0, LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	op_data->op_flags |= MF_GET_MDT_IDX;
-	rc = md_getattr(sbi->ll_md_exp, op_data, NULL);
-	mdtidx = op_data->op_mds;
-	ll_finish_md_op_data(op_data);
-	if (rc < 0) {
-		CDEBUG(D_INFO, "md_getattr_name: %d\n", rc);
-		return rc;
-	}
-	return mdtidx;
-}
-
-/**
- * Generic handler to do any pre-copy work.
- *
- * It send a first hsm_progress (with extent length == 0) to coordinator as a
- * first information for it that real work has started.
- *
- * Moreover, for a ARCHIVE request, it will sample the file data version and
- * store it in \a copy.
- *
- * \return 0 on success.
- */
-static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy)
-{
-	struct ll_sb_info		*sbi = ll_s2sbi(sb);
-	struct hsm_progress_kernel	 hpk;
-	int				 rc;
-
-	/* Forge a hsm_progress based on data from copy. */
-	hpk.hpk_fid = copy->hc_hai.hai_fid;
-	hpk.hpk_cookie = copy->hc_hai.hai_cookie;
-	hpk.hpk_extent.offset = copy->hc_hai.hai_extent.offset;
-	hpk.hpk_extent.length = 0;
-	hpk.hpk_flags = 0;
-	hpk.hpk_errval = 0;
-	hpk.hpk_data_version = 0;
-
-
-	/* For archive request, we need to read the current file version. */
-	if (copy->hc_hai.hai_action == HSMA_ARCHIVE) {
-		struct inode	*inode;
-		__u64		 data_version = 0;
-
-		/* Get inode for this fid */
-		inode = search_inode_for_lustre(sb, &copy->hc_hai.hai_fid);
-		if (IS_ERR(inode)) {
-			hpk.hpk_flags |= HP_FLAG_RETRY;
-			/* hpk_errval is >= 0 */
-			hpk.hpk_errval = -PTR_ERR(inode);
-			rc = PTR_ERR(inode);
-			goto progress;
-		}
-
-		/* Read current file data version */
-		rc = ll_data_version(inode, &data_version, 1);
-		iput(inode);
-		if (rc != 0) {
-			CDEBUG(D_HSM, "Could not read file data version of "
-				      DFID" (rc = %d). Archive request (%#llx) could not be done.\n",
-				      PFID(&copy->hc_hai.hai_fid), rc,
-				      copy->hc_hai.hai_cookie);
-			hpk.hpk_flags |= HP_FLAG_RETRY;
-			/* hpk_errval must be >= 0 */
-			hpk.hpk_errval = -rc;
-			goto progress;
-		}
-
-		/* Store it the hsm_copy for later copytool use.
-		 * Always modified even if no lsm. */
-		copy->hc_data_version = data_version;
-	}
-
-progress:
-	rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk),
-			   &hpk, NULL);
-
-	return rc;
-}
-
-/**
- * Generic handler to do any post-copy work.
- *
- * It will send the last hsm_progress update to coordinator to inform it
- * that copy is finished and whether it was successful or not.
- *
- * Moreover,
- * - for ARCHIVE request, it will sample the file data version and compare it
- *   with the version saved in ll_ioc_copy_start(). If they do not match, copy
- *   will be considered as failed.
- * - for RESTORE request, it will sample the file data version and send it to
- *   coordinator which is useful if the file was imported as 'released'.
- *
- * \return 0 on success.
- */
-static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy)
-{
-	struct ll_sb_info		*sbi = ll_s2sbi(sb);
-	struct hsm_progress_kernel	 hpk;
-	int				 rc;
-
-	/* If you modify the logic here, also check llapi_hsm_copy_end(). */
-	/* Take care: copy->hc_hai.hai_action, len, gid and data are not
-	 * initialized if copy_end was called with copy == NULL.
-	 */
-
-	/* Forge a hsm_progress based on data from copy. */
-	hpk.hpk_fid = copy->hc_hai.hai_fid;
-	hpk.hpk_cookie = copy->hc_hai.hai_cookie;
-	hpk.hpk_extent = copy->hc_hai.hai_extent;
-	hpk.hpk_flags = copy->hc_flags | HP_FLAG_COMPLETED;
-	hpk.hpk_errval = copy->hc_errval;
-	hpk.hpk_data_version = 0;
-
-	/* For archive request, we need to check the file data was not changed.
-	 *
-	 * For restore request, we need to send the file data version, this is
-	 * useful when the file was created using hsm_import.
-	 */
-	if (((copy->hc_hai.hai_action == HSMA_ARCHIVE) ||
-	     (copy->hc_hai.hai_action == HSMA_RESTORE)) &&
-	    (copy->hc_errval == 0)) {
-		struct inode	*inode;
-		__u64		 data_version = 0;
-
-		/* Get lsm for this fid */
-		inode = search_inode_for_lustre(sb, &copy->hc_hai.hai_fid);
-		if (IS_ERR(inode)) {
-			hpk.hpk_flags |= HP_FLAG_RETRY;
-			/* hpk_errval must be >= 0 */
-			hpk.hpk_errval = -PTR_ERR(inode);
-			rc = PTR_ERR(inode);
-			goto progress;
-		}
-
-		rc = ll_data_version(inode, &data_version,
-				     copy->hc_hai.hai_action == HSMA_ARCHIVE);
-		iput(inode);
-		if (rc) {
-			CDEBUG(D_HSM, "Could not read file data version. Request could not be confirmed.\n");
-			if (hpk.hpk_errval == 0)
-				hpk.hpk_errval = -rc;
-			goto progress;
-		}
-
-		/* Store it the hsm_copy for later copytool use.
-		 * Always modified even if no lsm. */
-		hpk.hpk_data_version = data_version;
-
-		/* File could have been stripped during archiving, so we need
-		 * to check anyway. */
-		if ((copy->hc_hai.hai_action == HSMA_ARCHIVE) &&
-		    (copy->hc_data_version != data_version)) {
-			CDEBUG(D_HSM, "File data version mismatched. File content was changed during archiving. "
-			       DFID", start:%#llx current:%#llx\n",
-			       PFID(&copy->hc_hai.hai_fid),
-			       copy->hc_data_version, data_version);
-			/* File was changed, send error to cdt. Do not ask for
-			 * retry because if a file is modified frequently,
-			 * the cdt will loop on retried archive requests.
-			 * The policy engine will ask for a new archive later
-			 * when the file will not be modified for some tunable
-			 * time */
-			/* we do not notify caller */
-			hpk.hpk_flags &= ~HP_FLAG_RETRY;
-			/* hpk_errval must be >= 0 */
-			hpk.hpk_errval = EBUSY;
-		}
-
-	}
-
-progress:
-	rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk),
-			   &hpk, NULL);
-
-	return rc;
-}
-
-
-static int copy_and_ioctl(int cmd, struct obd_export *exp,
-			  const void __user *data, size_t size)
-{
-	void *copy;
-	int rc;
-
-	copy = kzalloc(size, GFP_NOFS);
-	if (!copy)
-		return -ENOMEM;
-
-	if (copy_from_user(copy, data, size)) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	rc = obd_iocontrol(cmd, exp, size, copy, NULL);
-out:
-	kfree(copy);
-
-	return rc;
-}
-
-static int quotactl_ioctl(struct ll_sb_info *sbi, struct if_quotactl *qctl)
-{
-	int cmd = qctl->qc_cmd;
-	int type = qctl->qc_type;
-	int id = qctl->qc_id;
-	int valid = qctl->qc_valid;
-	int rc = 0;
-
-	switch (cmd) {
-	case LUSTRE_Q_INVALIDATE:
-	case LUSTRE_Q_FINVALIDATE:
-	case Q_QUOTAON:
-	case Q_QUOTAOFF:
-	case Q_SETQUOTA:
-	case Q_SETINFO:
-		if (!capable(CFS_CAP_SYS_ADMIN) ||
-		    sbi->ll_flags & LL_SBI_RMT_CLIENT)
-			return -EPERM;
-		break;
-	case Q_GETQUOTA:
-		if (((type == USRQUOTA &&
-		      !uid_eq(current_euid(), make_kuid(&init_user_ns, id))) ||
-		     (type == GRPQUOTA &&
-		      !in_egroup_p(make_kgid(&init_user_ns, id)))) &&
-		    (!capable(CFS_CAP_SYS_ADMIN) ||
-		     sbi->ll_flags & LL_SBI_RMT_CLIENT))
-			return -EPERM;
-		break;
-	case Q_GETINFO:
-		break;
-	default:
-		CERROR("unsupported quotactl op: %#x\n", cmd);
-		return -ENOTTY;
-	}
-
-	if (valid != QC_GENERAL) {
-		if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
-			return -EOPNOTSUPP;
-
-		if (cmd == Q_GETINFO)
-			qctl->qc_cmd = Q_GETOINFO;
-		else if (cmd == Q_GETQUOTA)
-			qctl->qc_cmd = Q_GETOQUOTA;
-		else
-			return -EINVAL;
-
-		switch (valid) {
-		case QC_MDTIDX:
-			rc = obd_iocontrol(OBD_IOC_QUOTACTL, sbi->ll_md_exp,
-					   sizeof(*qctl), qctl, NULL);
-			break;
-		case QC_OSTIDX:
-			rc = obd_iocontrol(OBD_IOC_QUOTACTL, sbi->ll_dt_exp,
-					   sizeof(*qctl), qctl, NULL);
-			break;
-		case QC_UUID:
-			rc = obd_iocontrol(OBD_IOC_QUOTACTL, sbi->ll_md_exp,
-					   sizeof(*qctl), qctl, NULL);
-			if (rc == -EAGAIN)
-				rc = obd_iocontrol(OBD_IOC_QUOTACTL,
-						   sbi->ll_dt_exp,
-						   sizeof(*qctl), qctl, NULL);
-			break;
-		default:
-			rc = -EINVAL;
-			break;
-		}
-
-		if (rc)
-			return rc;
-
-		qctl->qc_cmd = cmd;
-	} else {
-		struct obd_quotactl *oqctl;
-
-		oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS);
-		if (!oqctl)
-			return -ENOMEM;
-
-		QCTL_COPY(oqctl, qctl);
-		rc = obd_quotactl(sbi->ll_md_exp, oqctl);
-		if (rc) {
-			if (rc != -EALREADY && cmd == Q_QUOTAON) {
-				oqctl->qc_cmd = Q_QUOTAOFF;
-				obd_quotactl(sbi->ll_md_exp, oqctl);
-			}
-			kfree(oqctl);
-			return rc;
-		}
-		/* If QIF_SPACE is not set, client should collect the
-		 * space usage from OSSs by itself */
-		if (cmd == Q_GETQUOTA &&
-		    !(oqctl->qc_dqblk.dqb_valid & QIF_SPACE) &&
-		    !oqctl->qc_dqblk.dqb_curspace) {
-			struct obd_quotactl *oqctl_tmp;
-
-			oqctl_tmp = kzalloc(sizeof(*oqctl_tmp), GFP_NOFS);
-			if (!oqctl_tmp) {
-				rc = -ENOMEM;
-				goto out;
-			}
-
-			oqctl_tmp->qc_cmd = Q_GETOQUOTA;
-			oqctl_tmp->qc_id = oqctl->qc_id;
-			oqctl_tmp->qc_type = oqctl->qc_type;
-
-			/* collect space usage from OSTs */
-			oqctl_tmp->qc_dqblk.dqb_curspace = 0;
-			rc = obd_quotactl(sbi->ll_dt_exp, oqctl_tmp);
-			if (!rc || rc == -EREMOTEIO) {
-				oqctl->qc_dqblk.dqb_curspace =
-					oqctl_tmp->qc_dqblk.dqb_curspace;
-				oqctl->qc_dqblk.dqb_valid |= QIF_SPACE;
-			}
-
-			/* collect space & inode usage from MDTs */
-			oqctl_tmp->qc_dqblk.dqb_curspace = 0;
-			oqctl_tmp->qc_dqblk.dqb_curinodes = 0;
-			rc = obd_quotactl(sbi->ll_md_exp, oqctl_tmp);
-			if (!rc || rc == -EREMOTEIO) {
-				oqctl->qc_dqblk.dqb_curspace +=
-					oqctl_tmp->qc_dqblk.dqb_curspace;
-				oqctl->qc_dqblk.dqb_curinodes =
-					oqctl_tmp->qc_dqblk.dqb_curinodes;
-				oqctl->qc_dqblk.dqb_valid |= QIF_INODES;
-			} else {
-				oqctl->qc_dqblk.dqb_valid &= ~QIF_SPACE;
-			}
-
-			kfree(oqctl_tmp);
-		}
-out:
-		QCTL_COPY(qctl, oqctl);
-		kfree(oqctl);
-	}
-
-	return rc;
-}
-
-/* This function tries to get a single name component,
- * to send to the server. No actual path traversal involved,
- * so we limit to NAME_MAX */
-static char *ll_getname(const char __user *filename)
-{
-	int ret = 0, len;
-	char *tmp;
-
-	tmp = kzalloc(NAME_MAX + 1, GFP_KERNEL);
-	if (!tmp)
-		return ERR_PTR(-ENOMEM);
-
-	len = strncpy_from_user(tmp, filename, NAME_MAX + 1);
-	if (len < 0)
-		ret = len;
-	else if (len == 0)
-		ret = -ENOENT;
-	else if (len > NAME_MAX && tmp[NAME_MAX] != 0)
-		ret = -ENAMETOOLONG;
-
-	if (ret) {
-		kfree(tmp);
-		tmp =  ERR_PTR(ret);
-	}
-	return tmp;
-}
-
-#define ll_putname(filename) kfree(filename)
-
-static long ll_dir_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct inode *inode = file_inode(file);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct obd_ioctl_data *data;
-	int rc = 0;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), cmd=%#x\n",
-	       inode->i_ino, inode->i_generation, inode, cmd);
-
-	/* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
-	if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
-		return -ENOTTY;
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1);
-	switch (cmd) {
-	case FSFILT_IOC_GETFLAGS:
-	case FSFILT_IOC_SETFLAGS:
-		return ll_iocontrol(inode, file, cmd, arg);
-	case FSFILT_IOC_GETVERSION_OLD:
-	case FSFILT_IOC_GETVERSION:
-		return put_user(inode->i_generation, (int *)arg);
-	/* We need to special case any other ioctls we want to handle,
-	 * to send them to the MDS/OST as appropriate and to properly
-	 * network encode the arg field.
-	case FSFILT_IOC_SETVERSION_OLD:
-	case FSFILT_IOC_SETVERSION:
-	*/
-	case LL_IOC_GET_MDTIDX: {
-		int mdtidx;
-
-		mdtidx = ll_get_mdt_idx(inode);
-		if (mdtidx < 0)
-			return mdtidx;
-
-		if (put_user((int)mdtidx, (int *)arg))
-			return -EFAULT;
-
-		return 0;
-	}
-	case IOC_MDC_LOOKUP: {
-		struct ptlrpc_request *request = NULL;
-		int namelen, len = 0;
-		char *buf = NULL;
-		char *filename;
-		struct md_op_data *op_data;
-
-		rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
-		if (rc)
-			return rc;
-		data = (void *)buf;
-
-		filename = data->ioc_inlbuf1;
-		namelen = strlen(filename);
-
-		if (namelen < 1) {
-			CDEBUG(D_INFO, "IOC_MDC_LOOKUP missing filename\n");
-			rc = -EINVAL;
-			goto out_free;
-		}
-
-		op_data = ll_prep_md_op_data(NULL, inode, NULL, filename, namelen,
-					     0, LUSTRE_OPC_ANY, NULL);
-		if (IS_ERR(op_data)) {
-			rc = PTR_ERR(op_data);
-			goto out_free;
-		}
-
-		op_data->op_valid = OBD_MD_FLID;
-		rc = md_getattr_name(sbi->ll_md_exp, op_data, &request);
-		ll_finish_md_op_data(op_data);
-		if (rc < 0) {
-			CDEBUG(D_INFO, "md_getattr_name: %d\n", rc);
-			goto out_free;
-		}
-		ptlrpc_req_finished(request);
-out_free:
-		obd_ioctl_freedata(buf, len);
-		return rc;
-	}
-	case LL_IOC_LMV_SETSTRIPE: {
-		struct lmv_user_md  *lum;
-		char		*buf = NULL;
-		char		*filename;
-		int		 namelen = 0;
-		int		 lumlen = 0;
-		int		 len;
-		int		 rc;
-
-		rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
-		if (rc)
-			return rc;
-
-		data = (void *)buf;
-		if (data->ioc_inlbuf1 == NULL || data->ioc_inlbuf2 == NULL ||
-		    data->ioc_inllen1 == 0 || data->ioc_inllen2 == 0) {
-			rc = -EINVAL;
-			goto lmv_out_free;
-		}
-
-		filename = data->ioc_inlbuf1;
-		namelen = data->ioc_inllen1;
-
-		if (namelen < 1) {
-			CDEBUG(D_INFO, "IOC_MDC_LOOKUP missing filename\n");
-			rc = -EINVAL;
-			goto lmv_out_free;
-		}
-		lum = (struct lmv_user_md *)data->ioc_inlbuf2;
-		lumlen = data->ioc_inllen2;
-
-		if (lum->lum_magic != LMV_USER_MAGIC ||
-		    lumlen != sizeof(*lum)) {
-			CERROR("%s: wrong lum magic %x or size %d: rc = %d\n",
-			       filename, lum->lum_magic, lumlen, -EFAULT);
-			rc = -EINVAL;
-			goto lmv_out_free;
-		}
-
-		/**
-		 * ll_dir_setdirstripe will be used to set dir stripe
-		 *  mdc_create--->mdt_reint_create (with dirstripe)
-		 */
-		rc = ll_dir_setdirstripe(inode, lum, filename);
-lmv_out_free:
-		obd_ioctl_freedata(buf, len);
-		return rc;
-
-	}
-	case LL_IOC_LOV_SETSTRIPE: {
-		struct lov_user_md_v3 lumv3;
-		struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&lumv3;
-		struct lov_user_md_v1 *lumv1p = (struct lov_user_md_v1 *)arg;
-		struct lov_user_md_v3 *lumv3p = (struct lov_user_md_v3 *)arg;
-
-		int set_default = 0;
-
-		LASSERT(sizeof(lumv3) == sizeof(*lumv3p));
-		LASSERT(sizeof(lumv3.lmm_objects[0]) ==
-			sizeof(lumv3p->lmm_objects[0]));
-		/* first try with v1 which is smaller than v3 */
-		if (copy_from_user(lumv1, lumv1p, sizeof(*lumv1)))
-			return -EFAULT;
-
-		if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) {
-			if (copy_from_user(&lumv3, lumv3p, sizeof(lumv3)))
-				return -EFAULT;
-		}
-
-		if (is_root_inode(inode))
-			set_default = 1;
-
-		/* in v1 and v3 cases lumv1 points to data */
-		rc = ll_dir_setstripe(inode, lumv1, set_default);
-
-		return rc;
-	}
-	case LL_IOC_LMV_GETSTRIPE: {
-		struct lmv_user_md *lump = (struct lmv_user_md *)arg;
-		struct lmv_user_md lum;
-		struct lmv_user_md *tmp;
-		int lum_size;
-		int rc = 0;
-		int mdtindex;
-
-		if (copy_from_user(&lum, lump, sizeof(struct lmv_user_md)))
-			return -EFAULT;
-
-		if (lum.lum_magic != LMV_MAGIC_V1)
-			return -EINVAL;
-
-		lum_size = lmv_user_md_size(1, LMV_MAGIC_V1);
-		tmp = kzalloc(lum_size, GFP_NOFS);
-		if (!tmp) {
-			rc = -ENOMEM;
-			goto free_lmv;
-		}
-
-		*tmp = lum;
-		tmp->lum_type = LMV_STRIPE_TYPE;
-		tmp->lum_stripe_count = 1;
-		mdtindex = ll_get_mdt_idx(inode);
-		if (mdtindex < 0) {
-			rc = -ENOMEM;
-			goto free_lmv;
-		}
-
-		tmp->lum_stripe_offset = mdtindex;
-		tmp->lum_objects[0].lum_mds = mdtindex;
-		memcpy(&tmp->lum_objects[0].lum_fid, ll_inode2fid(inode),
-		       sizeof(struct lu_fid));
-		if (copy_to_user((void *)arg, tmp, lum_size)) {
-			rc = -EFAULT;
-			goto free_lmv;
-		}
-free_lmv:
-		kfree(tmp);
-		return rc;
-	}
-	case LL_IOC_LOV_SWAP_LAYOUTS:
-		return -EPERM;
-	case LL_IOC_OBD_STATFS:
-		return ll_obd_statfs(inode, (void *)arg);
-	case LL_IOC_LOV_GETSTRIPE:
-	case LL_IOC_MDC_GETINFO:
-	case IOC_MDC_GETFILEINFO:
-	case IOC_MDC_GETFILESTRIPE: {
-		struct ptlrpc_request *request = NULL;
-		struct lov_user_md *lump;
-		struct lov_mds_md *lmm = NULL;
-		struct mdt_body *body;
-		char *filename = NULL;
-		int lmmsize;
-
-		if (cmd == IOC_MDC_GETFILEINFO ||
-		    cmd == IOC_MDC_GETFILESTRIPE) {
-			filename = ll_getname((const char *)arg);
-			if (IS_ERR(filename))
-				return PTR_ERR(filename);
-
-			rc = ll_lov_getstripe_ea_info(inode, filename, &lmm,
-						      &lmmsize, &request);
-		} else {
-			rc = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
-		}
-
-		if (request) {
-			body = req_capsule_server_get(&request->rq_pill,
-						      &RMF_MDT_BODY);
-			LASSERT(body != NULL);
-		} else {
-			goto out_req;
-		}
-
-		if (rc < 0) {
-			if (rc == -ENODATA && (cmd == IOC_MDC_GETFILEINFO ||
-					       cmd == LL_IOC_MDC_GETINFO)) {
-				rc = 0;
-				goto skip_lmm;
-			} else
-				goto out_req;
-		}
-
-		if (cmd == IOC_MDC_GETFILESTRIPE ||
-		    cmd == LL_IOC_LOV_GETSTRIPE) {
-			lump = (struct lov_user_md *)arg;
-		} else {
-			struct lov_user_mds_data *lmdp;
-
-			lmdp = (struct lov_user_mds_data *)arg;
-			lump = &lmdp->lmd_lmm;
-		}
-		if (copy_to_user(lump, lmm, lmmsize)) {
-			if (copy_to_user(lump, lmm, sizeof(*lump))) {
-				rc = -EFAULT;
-				goto out_req;
-			}
-			rc = -EOVERFLOW;
-		}
-skip_lmm:
-		if (cmd == IOC_MDC_GETFILEINFO || cmd == LL_IOC_MDC_GETINFO) {
-			struct lov_user_mds_data *lmdp;
-			lstat_t st = { 0 };
-
-			st.st_dev     = inode->i_sb->s_dev;
-			st.st_mode    = body->mode;
-			st.st_nlink   = body->nlink;
-			st.st_uid     = body->uid;
-			st.st_gid     = body->gid;
-			st.st_rdev    = body->rdev;
-			st.st_size    = body->size;
-			st.st_blksize = PAGE_CACHE_SIZE;
-			st.st_blocks  = body->blocks;
-			st.st_atime   = body->atime;
-			st.st_mtime   = body->mtime;
-			st.st_ctime   = body->ctime;
-			st.st_ino     = inode->i_ino;
-
-			lmdp = (struct lov_user_mds_data *)arg;
-			if (copy_to_user(&lmdp->lmd_st, &st, sizeof(st))) {
-				rc = -EFAULT;
-				goto out_req;
-			}
-		}
-
-out_req:
-		ptlrpc_req_finished(request);
-		if (filename)
-			ll_putname(filename);
-		return rc;
-	}
-	case IOC_LOV_GETINFO: {
-		struct lov_user_mds_data *lumd;
-		struct lov_stripe_md *lsm;
-		struct lov_user_md *lum;
-		struct lov_mds_md *lmm;
-		int lmmsize;
-		lstat_t st;
-
-		lumd = (struct lov_user_mds_data *)arg;
-		lum = &lumd->lmd_lmm;
-
-		rc = ll_get_max_mdsize(sbi, &lmmsize);
-		if (rc)
-			return rc;
-
-		lmm = libcfs_kvzalloc(lmmsize, GFP_NOFS);
-		if (lmm == NULL)
-			return -ENOMEM;
-		if (copy_from_user(lmm, lum, lmmsize)) {
-			rc = -EFAULT;
-			goto free_lmm;
-		}
-
-		switch (lmm->lmm_magic) {
-		case LOV_USER_MAGIC_V1:
-			if (LOV_USER_MAGIC_V1 == cpu_to_le32(LOV_USER_MAGIC_V1))
-				break;
-			/* swab objects first so that stripes num will be sane */
-			lustre_swab_lov_user_md_objects(
-				((struct lov_user_md_v1 *)lmm)->lmm_objects,
-				((struct lov_user_md_v1 *)lmm)->lmm_stripe_count);
-			lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
-			break;
-		case LOV_USER_MAGIC_V3:
-			if (LOV_USER_MAGIC_V3 == cpu_to_le32(LOV_USER_MAGIC_V3))
-				break;
-			/* swab objects first so that stripes num will be sane */
-			lustre_swab_lov_user_md_objects(
-				((struct lov_user_md_v3 *)lmm)->lmm_objects,
-				((struct lov_user_md_v3 *)lmm)->lmm_stripe_count);
-			lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
-			break;
-		default:
-			rc = -EINVAL;
-			goto free_lmm;
-		}
-
-		rc = obd_unpackmd(sbi->ll_dt_exp, &lsm, lmm, lmmsize);
-		if (rc < 0) {
-			rc = -ENOMEM;
-			goto free_lmm;
-		}
-
-		/* Perform glimpse_size operation. */
-		memset(&st, 0, sizeof(st));
-
-		rc = ll_glimpse_ioctl(sbi, lsm, &st);
-		if (rc)
-			goto free_lsm;
-
-		if (copy_to_user(&lumd->lmd_st, &st, sizeof(st))) {
-			rc = -EFAULT;
-			goto free_lsm;
-		}
-
-free_lsm:
-		obd_free_memmd(sbi->ll_dt_exp, &lsm);
-free_lmm:
-		kvfree(lmm);
-		return rc;
-	}
-	case OBD_IOC_LLOG_CATINFO: {
-		return -EOPNOTSUPP;
-	}
-	case OBD_IOC_QUOTACHECK: {
-		struct obd_quotactl *oqctl;
-		int error = 0;
-
-		if (!capable(CFS_CAP_SYS_ADMIN) ||
-		    sbi->ll_flags & LL_SBI_RMT_CLIENT)
-			return -EPERM;
-
-		oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS);
-		if (!oqctl)
-			return -ENOMEM;
-		oqctl->qc_type = arg;
-		rc = obd_quotacheck(sbi->ll_md_exp, oqctl);
-		if (rc < 0) {
-			CDEBUG(D_INFO, "md_quotacheck failed: rc %d\n", rc);
-			error = rc;
-		}
-
-		rc = obd_quotacheck(sbi->ll_dt_exp, oqctl);
-		if (rc < 0)
-			CDEBUG(D_INFO, "obd_quotacheck failed: rc %d\n", rc);
-
-		kfree(oqctl);
-		return error ?: rc;
-	}
-	case OBD_IOC_POLL_QUOTACHECK: {
-		struct if_quotacheck *check;
-
-		if (!capable(CFS_CAP_SYS_ADMIN) ||
-		    sbi->ll_flags & LL_SBI_RMT_CLIENT)
-			return -EPERM;
-
-		check = kzalloc(sizeof(*check), GFP_NOFS);
-		if (!check)
-			return -ENOMEM;
-
-		rc = obd_iocontrol(cmd, sbi->ll_md_exp, 0, (void *)check,
-				   NULL);
-		if (rc) {
-			CDEBUG(D_QUOTA, "mdc ioctl %d failed: %d\n", cmd, rc);
-			if (copy_to_user((void *)arg, check,
-					     sizeof(*check)))
-				CDEBUG(D_QUOTA, "copy_to_user failed\n");
-			goto out_poll;
-		}
-
-		rc = obd_iocontrol(cmd, sbi->ll_dt_exp, 0, (void *)check,
-				   NULL);
-		if (rc) {
-			CDEBUG(D_QUOTA, "osc ioctl %d failed: %d\n", cmd, rc);
-			if (copy_to_user((void *)arg, check,
-					     sizeof(*check)))
-				CDEBUG(D_QUOTA, "copy_to_user failed\n");
-			goto out_poll;
-		}
-out_poll:
-		kfree(check);
-		return rc;
-	}
-	case LL_IOC_QUOTACTL: {
-		struct if_quotactl *qctl;
-
-		qctl = kzalloc(sizeof(*qctl), GFP_NOFS);
-		if (!qctl)
-			return -ENOMEM;
-
-		if (copy_from_user(qctl, (void *)arg, sizeof(*qctl))) {
-			rc = -EFAULT;
-			goto out_quotactl;
-		}
-
-		rc = quotactl_ioctl(sbi, qctl);
-
-		if (rc == 0 && copy_to_user((void *)arg, qctl, sizeof(*qctl)))
-			rc = -EFAULT;
-
-out_quotactl:
-		kfree(qctl);
-		return rc;
-	}
-	case OBD_IOC_GETDTNAME:
-	case OBD_IOC_GETMDNAME:
-		return ll_get_obd_name(inode, cmd, arg);
-	case LL_IOC_FLUSHCTX:
-		return ll_flush_ctx(inode);
-#ifdef CONFIG_FS_POSIX_ACL
-	case LL_IOC_RMTACL: {
-	    if (sbi->ll_flags & LL_SBI_RMT_CLIENT && is_root_inode(inode)) {
-		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-
-		LASSERT(fd != NULL);
-		rc = rct_add(&sbi->ll_rct, current_pid(), arg);
-		if (!rc)
-			fd->fd_flags |= LL_FILE_RMTACL;
-		return rc;
-	    } else
-		return 0;
-	}
-#endif
-	case LL_IOC_GETOBDCOUNT: {
-		int count, vallen;
-		struct obd_export *exp;
-
-		if (copy_from_user(&count, (int *)arg, sizeof(int)))
-			return -EFAULT;
-
-		/* get ost count when count is zero, get mdt count otherwise */
-		exp = count ? sbi->ll_md_exp : sbi->ll_dt_exp;
-		vallen = sizeof(count);
-		rc = obd_get_info(NULL, exp, sizeof(KEY_TGT_COUNT),
-				  KEY_TGT_COUNT, &vallen, &count, NULL);
-		if (rc) {
-			CERROR("get target count failed: %d\n", rc);
-			return rc;
-		}
-
-		if (copy_to_user((int *)arg, &count, sizeof(int)))
-			return -EFAULT;
-
-		return 0;
-	}
-	case LL_IOC_PATH2FID:
-		if (copy_to_user((void *)arg, ll_inode2fid(inode),
-				     sizeof(struct lu_fid)))
-			return -EFAULT;
-		return 0;
-	case LL_IOC_GET_CONNECT_FLAGS: {
-		return obd_iocontrol(cmd, sbi->ll_md_exp, 0, NULL, (void *)arg);
-	}
-	case OBD_IOC_CHANGELOG_SEND:
-	case OBD_IOC_CHANGELOG_CLEAR:
-		rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
-				    sizeof(struct ioc_changelog));
-		return rc;
-	case OBD_IOC_FID2PATH:
-		return ll_fid2path(inode, (void *)arg);
-	case LL_IOC_HSM_REQUEST: {
-		struct hsm_user_request	*hur;
-		ssize_t			 totalsize;
-
-		hur = memdup_user((void *)arg, sizeof(*hur));
-		if (IS_ERR(hur))
-			return PTR_ERR(hur);
-
-		/* Compute the whole struct size */
-		totalsize = hur_len(hur);
-		kfree(hur);
-		if (totalsize < 0)
-			return -E2BIG;
-
-		/* Final size will be more than double totalsize */
-		if (totalsize >= MDS_MAXREQSIZE / 3)
-			return -E2BIG;
-
-		hur = libcfs_kvzalloc(totalsize, GFP_NOFS);
-		if (hur == NULL)
-			return -ENOMEM;
-
-		/* Copy the whole struct */
-		if (copy_from_user(hur, (void *)arg, totalsize)) {
-			kvfree(hur);
-			return -EFAULT;
-		}
-
-		if (hur->hur_request.hr_action == HUA_RELEASE) {
-			const struct lu_fid *fid;
-			struct inode *f;
-			int i;
-
-			for (i = 0; i < hur->hur_request.hr_itemcount; i++) {
-				fid = &hur->hur_user_item[i].hui_fid;
-				f = search_inode_for_lustre(inode->i_sb, fid);
-				if (IS_ERR(f)) {
-					rc = PTR_ERR(f);
-					break;
-				}
-
-				rc = ll_hsm_release(f);
-				iput(f);
-				if (rc != 0)
-					break;
-			}
-		} else {
-			rc = obd_iocontrol(cmd, ll_i2mdexp(inode), totalsize,
-					   hur, NULL);
-		}
-
-		kvfree(hur);
-
-		return rc;
-	}
-	case LL_IOC_HSM_PROGRESS: {
-		struct hsm_progress_kernel	hpk;
-		struct hsm_progress		hp;
-
-		if (copy_from_user(&hp, (void *)arg, sizeof(hp)))
-			return -EFAULT;
-
-		hpk.hpk_fid = hp.hp_fid;
-		hpk.hpk_cookie = hp.hp_cookie;
-		hpk.hpk_extent = hp.hp_extent;
-		hpk.hpk_flags = hp.hp_flags;
-		hpk.hpk_errval = hp.hp_errval;
-		hpk.hpk_data_version = 0;
-
-		/* File may not exist in Lustre; all progress
-		 * reported to Lustre root */
-		rc = obd_iocontrol(cmd, sbi->ll_md_exp, sizeof(hpk), &hpk,
-				   NULL);
-		return rc;
-	}
-	case LL_IOC_HSM_CT_START:
-		rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
-				    sizeof(struct lustre_kernelcomm));
-		return rc;
-
-	case LL_IOC_HSM_COPY_START: {
-		struct hsm_copy	*copy;
-		int		 rc;
-
-		copy = memdup_user((char *)arg, sizeof(*copy));
-		if (IS_ERR(copy))
-			return PTR_ERR(copy);
-
-		rc = ll_ioc_copy_start(inode->i_sb, copy);
-		if (copy_to_user((char *)arg, copy, sizeof(*copy)))
-			rc = -EFAULT;
-
-		kfree(copy);
-		return rc;
-	}
-	case LL_IOC_HSM_COPY_END: {
-		struct hsm_copy	*copy;
-		int		 rc;
-
-		copy = memdup_user((char *)arg, sizeof(*copy));
-		if (IS_ERR(copy))
-			return PTR_ERR(copy);
-
-		rc = ll_ioc_copy_end(inode->i_sb, copy);
-		if (copy_to_user((char *)arg, copy, sizeof(*copy)))
-			rc = -EFAULT;
-
-		kfree(copy);
-		return rc;
-	}
-	default:
-		return obd_iocontrol(cmd, sbi->ll_dt_exp, 0, NULL, (void *)arg);
-	}
-}
-
-static loff_t ll_dir_seek(struct file *file, loff_t offset, int origin)
-{
-	struct inode *inode = file->f_mapping->host;
-	struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	int api32 = ll_need_32bit_api(sbi);
-	loff_t ret = -EINVAL;
-
-	mutex_lock(&inode->i_mutex);
-	switch (origin) {
-	case SEEK_SET:
-		break;
-	case SEEK_CUR:
-		offset += file->f_pos;
-		break;
-	case SEEK_END:
-		if (offset > 0)
-			goto out;
-		if (api32)
-			offset += LL_DIR_END_OFF_32BIT;
-		else
-			offset += LL_DIR_END_OFF;
-		break;
-	default:
-		goto out;
-	}
-
-	if (offset >= 0 &&
-	    ((api32 && offset <= LL_DIR_END_OFF_32BIT) ||
-	     (!api32 && offset <= LL_DIR_END_OFF))) {
-		if (offset != file->f_pos) {
-			if ((api32 && offset == LL_DIR_END_OFF_32BIT) ||
-			    (!api32 && offset == LL_DIR_END_OFF))
-				fd->lfd_pos = MDS_DIR_END_OFF;
-			else if (api32 && sbi->ll_flags & LL_SBI_64BIT_HASH)
-				fd->lfd_pos = offset << 32;
-			else
-				fd->lfd_pos = offset;
-			file->f_pos = offset;
-			file->f_version = 0;
-		}
-		ret = offset;
-	}
-	goto out;
-
-out:
-	mutex_unlock(&inode->i_mutex);
-	return ret;
-}
-
-static int ll_dir_open(struct inode *inode, struct file *file)
-{
-	return ll_file_open(inode, file);
-}
-
-static int ll_dir_release(struct inode *inode, struct file *file)
-{
-	return ll_file_release(inode, file);
-}
-
-const struct file_operations ll_dir_operations = {
-	.llseek   = ll_dir_seek,
-	.open     = ll_dir_open,
-	.release  = ll_dir_release,
-	.read     = generic_read_dir,
-	.iterate  = ll_readdir,
-	.unlocked_ioctl   = ll_dir_ioctl,
-	.fsync    = ll_fsync,
-};
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
deleted file mode 100644
index dcd0c6d65efb..000000000000
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ /dev/null
@@ -1,3604 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/file.c
- *
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Andreas Dilger <adilger@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_lite.h"
-#include <linux/pagemap.h>
-#include <linux/file.h>
-#include "llite_internal.h"
-#include "../include/lustre/ll_fiemap.h"
-
-#include "../include/cl_object.h"
-
-static int
-ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
-
-static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
-			  bool *lease_broken);
-
-static enum llioc_iter
-ll_iocontrol_call(struct inode *inode, struct file *file,
-		  unsigned int cmd, unsigned long arg, int *rcp);
-
-static struct ll_file_data *ll_file_data_get(void)
-{
-	struct ll_file_data *fd;
-
-	OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, GFP_NOFS);
-	if (fd == NULL)
-		return NULL;
-	fd->fd_write_failed = false;
-	return fd;
-}
-
-static void ll_file_data_put(struct ll_file_data *fd)
-{
-	if (fd != NULL)
-		OBD_SLAB_FREE_PTR(fd, ll_file_data_slab);
-}
-
-void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
-			  struct lustre_handle *fh)
-{
-	op_data->op_fid1 = ll_i2info(inode)->lli_fid;
-	op_data->op_attr.ia_mode = inode->i_mode;
-	op_data->op_attr.ia_atime = inode->i_atime;
-	op_data->op_attr.ia_mtime = inode->i_mtime;
-	op_data->op_attr.ia_ctime = inode->i_ctime;
-	op_data->op_attr.ia_size = i_size_read(inode);
-	op_data->op_attr_blocks = inode->i_blocks;
-	((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags =
-					ll_inode_to_ext_flags(inode->i_flags);
-	op_data->op_ioepoch = ll_i2info(inode)->lli_ioepoch;
-	if (fh)
-		op_data->op_handle = *fh;
-	op_data->op_capa1 = ll_mdscapa_get(inode);
-
-	if (LLIF_DATA_MODIFIED & ll_i2info(inode)->lli_flags)
-		op_data->op_bias |= MDS_DATA_MODIFIED;
-}
-
-/**
- * Closes the IO epoch and packs all the attributes into @op_data for
- * the CLOSE rpc.
- */
-static void ll_prepare_close(struct inode *inode, struct md_op_data *op_data,
-			     struct obd_client_handle *och)
-{
-	op_data->op_attr.ia_valid = ATTR_MODE | ATTR_ATIME | ATTR_ATIME_SET |
-					ATTR_MTIME | ATTR_MTIME_SET |
-					ATTR_CTIME | ATTR_CTIME_SET;
-
-	if (!(och->och_flags & FMODE_WRITE))
-		goto out;
-
-	if (!exp_connect_som(ll_i2mdexp(inode)) || !S_ISREG(inode->i_mode))
-		op_data->op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS;
-	else
-		ll_ioepoch_close(inode, op_data, &och, 0);
-
-out:
-	ll_pack_inode2opdata(inode, op_data, &och->och_fh);
-	ll_prep_md_op_data(op_data, inode, NULL, NULL,
-			   0, 0, LUSTRE_OPC_ANY, NULL);
-}
-
-static int ll_close_inode_openhandle(struct obd_export *md_exp,
-				     struct inode *inode,
-				     struct obd_client_handle *och,
-				     const __u64 *data_version)
-{
-	struct obd_export *exp = ll_i2mdexp(inode);
-	struct md_op_data *op_data;
-	struct ptlrpc_request *req = NULL;
-	struct obd_device *obd = class_exp2obd(exp);
-	int epoch_close = 1;
-	int rc;
-
-	if (obd == NULL) {
-		/*
-		 * XXX: in case of LMV, is this correct to access
-		 * ->exp_handle?
-		 */
-		CERROR("Invalid MDC connection handle %#llx\n",
-		       ll_i2mdexp(inode)->exp_handle.h_cookie);
-		rc = 0;
-		goto out;
-	}
-
-	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (!op_data) {
-		/* XXX We leak openhandle and request here. */
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	ll_prepare_close(inode, op_data, och);
-	if (data_version != NULL) {
-		/* Pass in data_version implies release. */
-		op_data->op_bias |= MDS_HSM_RELEASE;
-		op_data->op_data_version = *data_version;
-		op_data->op_lease_handle = och->och_lease_handle;
-		op_data->op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS;
-	}
-	epoch_close = op_data->op_flags & MF_EPOCH_CLOSE;
-	rc = md_close(md_exp, op_data, och->och_mod, &req);
-	if (rc == -EAGAIN) {
-		/* This close must have the epoch closed. */
-		LASSERT(epoch_close);
-		/* MDS has instructed us to obtain Size-on-MDS attribute from
-		 * OSTs and send setattr to back to MDS. */
-		rc = ll_som_update(inode, op_data);
-		if (rc) {
-			CERROR("inode %lu mdc Size-on-MDS update failed: rc = %d\n",
-			       inode->i_ino, rc);
-			rc = 0;
-		}
-	} else if (rc) {
-		CERROR("inode %lu mdc close failed: rc = %d\n",
-		       inode->i_ino, rc);
-	}
-
-	/* DATA_MODIFIED flag was successfully sent on close, cancel data
-	 * modification flag. */
-	if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
-		struct ll_inode_info *lli = ll_i2info(inode);
-
-		spin_lock(&lli->lli_lock);
-		lli->lli_flags &= ~LLIF_DATA_MODIFIED;
-		spin_unlock(&lli->lli_lock);
-	}
-
-	if (rc == 0) {
-		rc = ll_objects_destroy(req, inode);
-		if (rc)
-			CERROR("inode %lu ll_objects destroy: rc = %d\n",
-			       inode->i_ino, rc);
-	}
-	if (rc == 0 && op_data->op_bias & MDS_HSM_RELEASE) {
-		struct mdt_body *body;
-
-		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		if (!(body->valid & OBD_MD_FLRELEASED))
-			rc = -EBUSY;
-	}
-
-	ll_finish_md_op_data(op_data);
-
-out:
-	if (exp_connect_som(exp) && !epoch_close &&
-	    S_ISREG(inode->i_mode) && (och->och_flags & FMODE_WRITE)) {
-		ll_queue_done_writing(inode, LLIF_DONE_WRITING);
-	} else {
-		md_clear_open_replay_data(md_exp, och);
-		/* Free @och if it is not waiting for DONE_WRITING. */
-		och->och_fh.cookie = DEAD_HANDLE_MAGIC;
-		kfree(och);
-	}
-	if (req) /* This is close request */
-		ptlrpc_req_finished(req);
-	return rc;
-}
-
-int ll_md_real_close(struct inode *inode, fmode_t fmode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct obd_client_handle **och_p;
-	struct obd_client_handle *och;
-	__u64 *och_usecount;
-	int rc = 0;
-
-	if (fmode & FMODE_WRITE) {
-		och_p = &lli->lli_mds_write_och;
-		och_usecount = &lli->lli_open_fd_write_count;
-	} else if (fmode & FMODE_EXEC) {
-		och_p = &lli->lli_mds_exec_och;
-		och_usecount = &lli->lli_open_fd_exec_count;
-	} else {
-		LASSERT(fmode & FMODE_READ);
-		och_p = &lli->lli_mds_read_och;
-		och_usecount = &lli->lli_open_fd_read_count;
-	}
-
-	mutex_lock(&lli->lli_och_mutex);
-	if (*och_usecount > 0) {
-		/* There are still users of this handle, so skip
-		 * freeing it. */
-		mutex_unlock(&lli->lli_och_mutex);
-		return 0;
-	}
-
-	och = *och_p;
-	*och_p = NULL;
-	mutex_unlock(&lli->lli_och_mutex);
-
-	if (och != NULL) {
-		/* There might be a race and this handle may already
-		   be closed. */
-		rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp,
-					       inode, och, NULL);
-	}
-
-	return rc;
-}
-
-static int ll_md_close(struct obd_export *md_exp, struct inode *inode,
-		       struct file *file)
-{
-	struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-	struct ll_inode_info *lli = ll_i2info(inode);
-	int lockmode;
-	__u64 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_TEST_LOCK;
-	struct lustre_handle lockh;
-	ldlm_policy_data_t policy = {.l_inodebits = {MDS_INODELOCK_OPEN}};
-	int rc = 0;
-
-	/* clear group lock, if present */
-	if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED))
-		ll_put_grouplock(inode, file, fd->fd_grouplock.cg_gid);
-
-	if (fd->fd_lease_och != NULL) {
-		bool lease_broken;
-
-		/* Usually the lease is not released when the
-		 * application crashed, we need to release here. */
-		rc = ll_lease_close(fd->fd_lease_och, inode, &lease_broken);
-		CDEBUG(rc ? D_ERROR : D_INODE, "Clean up lease "DFID" %d/%d\n",
-			PFID(&lli->lli_fid), rc, lease_broken);
-
-		fd->fd_lease_och = NULL;
-	}
-
-	if (fd->fd_och != NULL) {
-		rc = ll_close_inode_openhandle(md_exp, inode, fd->fd_och, NULL);
-		fd->fd_och = NULL;
-		goto out;
-	}
-
-	/* Let's see if we have good enough OPEN lock on the file and if
-	   we can skip talking to MDS */
-
-	mutex_lock(&lli->lli_och_mutex);
-	if (fd->fd_omode & FMODE_WRITE) {
-		lockmode = LCK_CW;
-		LASSERT(lli->lli_open_fd_write_count);
-		lli->lli_open_fd_write_count--;
-	} else if (fd->fd_omode & FMODE_EXEC) {
-		lockmode = LCK_PR;
-		LASSERT(lli->lli_open_fd_exec_count);
-		lli->lli_open_fd_exec_count--;
-	} else {
-		lockmode = LCK_CR;
-		LASSERT(lli->lli_open_fd_read_count);
-		lli->lli_open_fd_read_count--;
-	}
-	mutex_unlock(&lli->lli_och_mutex);
-
-	if (!md_lock_match(md_exp, flags, ll_inode2fid(inode),
-			   LDLM_IBITS, &policy, lockmode, &lockh))
-		rc = ll_md_real_close(inode, fd->fd_omode);
-
-out:
-	LUSTRE_FPRIVATE(file) = NULL;
-	ll_file_data_put(fd);
-	ll_capa_close(inode);
-
-	return rc;
-}
-
-/* While this returns an error code, fput() the caller does not, so we need
- * to make every effort to clean up all of our state here.  Also, applications
- * rarely check close errors and even if an error is returned they will not
- * re-try the close call.
- */
-int ll_file_release(struct inode *inode, struct file *file)
-{
-	struct ll_file_data *fd;
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ll_inode_info *lli = ll_i2info(inode);
-	int rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
-	       inode->i_generation, inode);
-
-#ifdef CONFIG_FS_POSIX_ACL
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT && is_root_inode(inode)) {
-		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-
-		LASSERT(fd != NULL);
-		if (unlikely(fd->fd_flags & LL_FILE_RMTACL)) {
-			fd->fd_flags &= ~LL_FILE_RMTACL;
-			rct_del(&sbi->ll_rct, current_pid());
-			et_search_free(&sbi->ll_et, current_pid());
-		}
-	}
-#endif
-
-	if (!is_root_inode(inode))
-		ll_stats_ops_tally(sbi, LPROC_LL_RELEASE, 1);
-	fd = LUSTRE_FPRIVATE(file);
-	LASSERT(fd != NULL);
-
-	/* The last ref on @file, maybe not the owner pid of statahead.
-	 * Different processes can open the same dir, "ll_opendir_key" means:
-	 * it is me that should stop the statahead thread. */
-	if (S_ISDIR(inode->i_mode) && lli->lli_opendir_key == fd &&
-	    lli->lli_opendir_pid != 0)
-		ll_stop_statahead(inode, lli->lli_opendir_key);
-
-	if (is_root_inode(inode)) {
-		LUSTRE_FPRIVATE(file) = NULL;
-		ll_file_data_put(fd);
-		return 0;
-	}
-
-	if (!S_ISDIR(inode->i_mode)) {
-		lov_read_and_clear_async_rc(lli->lli_clob);
-		lli->lli_async_rc = 0;
-	}
-
-	rc = ll_md_close(sbi->ll_md_exp, inode, file);
-
-	if (CFS_FAIL_TIMEOUT_MS(OBD_FAIL_PTLRPC_DUMP_LOG, cfs_fail_val))
-		libcfs_debug_dumplog();
-
-	return rc;
-}
-
-static int ll_intent_file_open(struct dentry *dentry, void *lmm,
-			       int lmmsize, struct lookup_intent *itp)
-{
-	struct inode *inode = d_inode(dentry);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct dentry *parent = dentry->d_parent;
-	const char *name = dentry->d_name.name;
-	const int len = dentry->d_name.len;
-	struct md_op_data *op_data;
-	struct ptlrpc_request *req;
-	__u32 opc = LUSTRE_OPC_ANY;
-	int rc;
-
-	/* Usually we come here only for NFSD, and we want open lock.
-	   But we can also get here with pre 2.6.15 patchless kernels, and in
-	   that case that lock is also ok */
-	/* We can also get here if there was cached open handle in revalidate_it
-	 * but it disappeared while we were getting from there to ll_file_open.
-	 * But this means this file was closed and immediately opened which
-	 * makes a good candidate for using OPEN lock */
-	/* If lmmsize & lmm are not 0, we are just setting stripe info
-	 * parameters. No need for the open lock */
-	if (lmm == NULL && lmmsize == 0) {
-		itp->it_flags |= MDS_OPEN_LOCK;
-		if (itp->it_flags & FMODE_WRITE)
-			opc = LUSTRE_OPC_CREATE;
-	}
-
-	op_data  = ll_prep_md_op_data(NULL, d_inode(parent),
-				      inode, name, len,
-				      O_RDWR, opc, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	itp->it_flags |= MDS_OPEN_BY_FID;
-	rc = md_intent_lock(sbi->ll_md_exp, op_data, lmm, lmmsize, itp,
-			    0 /*unused */, &req, ll_md_blocking_ast, 0);
-	ll_finish_md_op_data(op_data);
-	if (rc == -ESTALE) {
-		/* reason for keep own exit path - don`t flood log
-		* with messages with -ESTALE errors.
-		*/
-		if (!it_disposition(itp, DISP_OPEN_OPEN) ||
-		     it_open_error(DISP_OPEN_OPEN, itp))
-			goto out;
-		ll_release_openhandle(inode, itp);
-		goto out;
-	}
-
-	if (it_disposition(itp, DISP_LOOKUP_NEG)) {
-		rc = -ENOENT;
-		goto out;
-	}
-
-	if (rc != 0 || it_open_error(DISP_OPEN_OPEN, itp)) {
-		rc = rc ? rc : it_open_error(DISP_OPEN_OPEN, itp);
-		CDEBUG(D_VFSTRACE, "lock enqueue: err: %d\n", rc);
-		goto out;
-	}
-
-	rc = ll_prep_inode(&inode, req, NULL, itp);
-	if (!rc && itp->d.lustre.it_lock_mode)
-		ll_set_lock_data(sbi->ll_md_exp, inode, itp, NULL);
-
-out:
-	ptlrpc_req_finished(req);
-	ll_intent_drop_lock(itp);
-
-	return rc;
-}
-
-/**
- * Assign an obtained @ioepoch to client's inode. No lock is needed, MDS does
- * not believe attributes if a few ioepoch holders exist. Attributes for
- * previous ioepoch if new one is opened are also skipped by MDS.
- */
-void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch)
-{
-	if (ioepoch && lli->lli_ioepoch != ioepoch) {
-		lli->lli_ioepoch = ioepoch;
-		CDEBUG(D_INODE, "Epoch %llu opened on "DFID"\n",
-		       ioepoch, PFID(&lli->lli_fid));
-	}
-}
-
-static int ll_och_fill(struct obd_export *md_exp, struct lookup_intent *it,
-		       struct obd_client_handle *och)
-{
-	struct ptlrpc_request *req = it->d.lustre.it_data;
-	struct mdt_body *body;
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	och->och_fh = body->handle;
-	och->och_fid = body->fid1;
-	och->och_lease_handle.cookie = it->d.lustre.it_lock_handle;
-	och->och_magic = OBD_CLIENT_HANDLE_MAGIC;
-	och->och_flags = it->it_flags;
-
-	return md_set_open_replay_data(md_exp, och, it);
-}
-
-static int ll_local_open(struct file *file, struct lookup_intent *it,
-			 struct ll_file_data *fd, struct obd_client_handle *och)
-{
-	struct inode *inode = file_inode(file);
-	struct ll_inode_info *lli = ll_i2info(inode);
-
-	LASSERT(!LUSTRE_FPRIVATE(file));
-
-	LASSERT(fd != NULL);
-
-	if (och) {
-		struct ptlrpc_request *req = it->d.lustre.it_data;
-		struct mdt_body *body;
-		int rc;
-
-		rc = ll_och_fill(ll_i2sbi(inode)->ll_md_exp, it, och);
-		if (rc != 0)
-			return rc;
-
-		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		ll_ioepoch_open(lli, body->ioepoch);
-	}
-
-	LUSTRE_FPRIVATE(file) = fd;
-	ll_readahead_init(inode, &fd->fd_ras);
-	fd->fd_omode = it->it_flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC);
-	return 0;
-}
-
-/* Open a file, and (for the very first open) create objects on the OSTs at
- * this time.  If opened with O_LOV_DELAY_CREATE, then we don't do the object
- * creation or open until ll_lov_setstripe() ioctl is called.
- *
- * If we already have the stripe MD locally then we don't request it in
- * md_open(), by passing a lmm_size = 0.
- *
- * It is up to the application to ensure no other processes open this file
- * in the O_LOV_DELAY_CREATE case, or the default striping pattern will be
- * used.  We might be able to avoid races of that sort by getting lli_open_sem
- * before returning in the O_LOV_DELAY_CREATE case and dropping it here
- * or in ll_file_release(), but I'm not sure that is desirable/necessary.
- */
-int ll_file_open(struct inode *inode, struct file *file)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct lookup_intent *it, oit = { .it_op = IT_OPEN,
-					  .it_flags = file->f_flags };
-	struct obd_client_handle **och_p = NULL;
-	__u64 *och_usecount = NULL;
-	struct ll_file_data *fd;
-	int rc = 0, opendir_set = 0;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), flags %o\n", inode->i_ino,
-	       inode->i_generation, inode, file->f_flags);
-
-	it = file->private_data; /* XXX: compat macro */
-	file->private_data = NULL; /* prevent ll_local_open assertion */
-
-	fd = ll_file_data_get();
-	if (fd == NULL) {
-		rc = -ENOMEM;
-		goto out_openerr;
-	}
-
-	fd->fd_file = file;
-	if (S_ISDIR(inode->i_mode)) {
-		spin_lock(&lli->lli_sa_lock);
-		if (lli->lli_opendir_key == NULL && lli->lli_sai == NULL &&
-		    lli->lli_opendir_pid == 0) {
-			lli->lli_opendir_key = fd;
-			lli->lli_opendir_pid = current_pid();
-			opendir_set = 1;
-		}
-		spin_unlock(&lli->lli_sa_lock);
-	}
-
-	if (is_root_inode(inode)) {
-		LUSTRE_FPRIVATE(file) = fd;
-		return 0;
-	}
-
-	if (!it || !it->d.lustre.it_disposition) {
-		/* Convert f_flags into access mode. We cannot use file->f_mode,
-		 * because everything but O_ACCMODE mask was stripped from
-		 * there */
-		if ((oit.it_flags + 1) & O_ACCMODE)
-			oit.it_flags++;
-		if (file->f_flags & O_TRUNC)
-			oit.it_flags |= FMODE_WRITE;
-
-		/* kernel only call f_op->open in dentry_open.  filp_open calls
-		 * dentry_open after call to open_namei that checks permissions.
-		 * Only nfsd_open call dentry_open directly without checking
-		 * permissions and because of that this code below is safe. */
-		if (oit.it_flags & (FMODE_WRITE | FMODE_READ))
-			oit.it_flags |= MDS_OPEN_OWNEROVERRIDE;
-
-		/* We do not want O_EXCL here, presumably we opened the file
-		 * already? XXX - NFS implications? */
-		oit.it_flags &= ~O_EXCL;
-
-		/* bug20584, if "it_flags" contains O_CREAT, the file will be
-		 * created if necessary, then "IT_CREAT" should be set to keep
-		 * consistent with it */
-		if (oit.it_flags & O_CREAT)
-			oit.it_op |= IT_CREAT;
-
-		it = &oit;
-	}
-
-restart:
-	/* Let's see if we have file open on MDS already. */
-	if (it->it_flags & FMODE_WRITE) {
-		och_p = &lli->lli_mds_write_och;
-		och_usecount = &lli->lli_open_fd_write_count;
-	} else if (it->it_flags & FMODE_EXEC) {
-		och_p = &lli->lli_mds_exec_och;
-		och_usecount = &lli->lli_open_fd_exec_count;
-	 } else {
-		och_p = &lli->lli_mds_read_och;
-		och_usecount = &lli->lli_open_fd_read_count;
-	}
-
-	mutex_lock(&lli->lli_och_mutex);
-	if (*och_p) { /* Open handle is present */
-		if (it_disposition(it, DISP_OPEN_OPEN)) {
-			/* Well, there's extra open request that we do not need,
-			   let's close it somehow. This will decref request. */
-			rc = it_open_error(DISP_OPEN_OPEN, it);
-			if (rc) {
-				mutex_unlock(&lli->lli_och_mutex);
-				goto out_openerr;
-			}
-
-			ll_release_openhandle(inode, it);
-		}
-		(*och_usecount)++;
-
-		rc = ll_local_open(file, it, fd, NULL);
-		if (rc) {
-			(*och_usecount)--;
-			mutex_unlock(&lli->lli_och_mutex);
-			goto out_openerr;
-		}
-	} else {
-		LASSERT(*och_usecount == 0);
-		if (!it->d.lustre.it_disposition) {
-			/* We cannot just request lock handle now, new ELC code
-			   means that one of other OPEN locks for this file
-			   could be cancelled, and since blocking ast handler
-			   would attempt to grab och_mutex as well, that would
-			   result in a deadlock */
-			mutex_unlock(&lli->lli_och_mutex);
-			it->it_create_mode |= M_CHECK_STALE;
-			rc = ll_intent_file_open(file->f_path.dentry, NULL, 0, it);
-			it->it_create_mode &= ~M_CHECK_STALE;
-			if (rc)
-				goto out_openerr;
-
-			goto restart;
-		}
-		*och_p = kzalloc(sizeof(struct obd_client_handle), GFP_NOFS);
-		if (!*och_p) {
-			rc = -ENOMEM;
-			goto out_och_free;
-		}
-
-		(*och_usecount)++;
-
-		/* md_intent_lock() didn't get a request ref if there was an
-		 * open error, so don't do cleanup on the request here
-		 * (bug 3430) */
-		/* XXX (green): Should not we bail out on any error here, not
-		 * just open error? */
-		rc = it_open_error(DISP_OPEN_OPEN, it);
-		if (rc)
-			goto out_och_free;
-
-		LASSERT(it_disposition(it, DISP_ENQ_OPEN_REF));
-
-		rc = ll_local_open(file, it, fd, *och_p);
-		if (rc)
-			goto out_och_free;
-	}
-	mutex_unlock(&lli->lli_och_mutex);
-	fd = NULL;
-
-	/* Must do this outside lli_och_mutex lock to prevent deadlock where
-	   different kind of OPEN lock for this same inode gets cancelled
-	   by ldlm_cancel_lru */
-	if (!S_ISREG(inode->i_mode))
-		goto out_och_free;
-
-	ll_capa_open(inode);
-
-	if (!lli->lli_has_smd &&
-	    (cl_is_lov_delay_create(file->f_flags) ||
-	     (file->f_mode & FMODE_WRITE) == 0)) {
-		CDEBUG(D_INODE, "object creation was delayed\n");
-		goto out_och_free;
-	}
-	cl_lov_delay_create_clear(&file->f_flags);
-	goto out_och_free;
-
-out_och_free:
-	if (rc) {
-		if (och_p && *och_p) {
-			kfree(*och_p);
-			*och_p = NULL; /* OBD_FREE writes some magic there */
-			(*och_usecount)--;
-		}
-		mutex_unlock(&lli->lli_och_mutex);
-
-out_openerr:
-		if (opendir_set != 0)
-			ll_stop_statahead(inode, lli->lli_opendir_key);
-		ll_file_data_put(fd);
-	} else {
-		ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_OPEN, 1);
-	}
-
-	if (it && it_disposition(it, DISP_ENQ_OPEN_REF)) {
-		ptlrpc_req_finished(it->d.lustre.it_data);
-		it_clear_disposition(it, DISP_ENQ_OPEN_REF);
-	}
-
-	return rc;
-}
-
-static int ll_md_blocking_lease_ast(struct ldlm_lock *lock,
-			struct ldlm_lock_desc *desc, void *data, int flag)
-{
-	int rc;
-	struct lustre_handle lockh;
-
-	switch (flag) {
-	case LDLM_CB_BLOCKING:
-		ldlm_lock2handle(lock, &lockh);
-		rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
-		if (rc < 0) {
-			CDEBUG(D_INODE, "ldlm_cli_cancel: %d\n", rc);
-			return rc;
-		}
-		break;
-	case LDLM_CB_CANCELING:
-		/* do nothing */
-		break;
-	}
-	return 0;
-}
-
-/**
- * Acquire a lease and open the file.
- */
-static struct obd_client_handle *
-ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode,
-	      __u64 open_flags)
-{
-	struct lookup_intent it = { .it_op = IT_OPEN };
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct md_op_data *op_data;
-	struct ptlrpc_request *req;
-	struct lustre_handle old_handle = { 0 };
-	struct obd_client_handle *och = NULL;
-	int rc;
-	int rc2;
-
-	if (fmode != FMODE_WRITE && fmode != FMODE_READ)
-		return ERR_PTR(-EINVAL);
-
-	if (file != NULL) {
-		struct ll_inode_info *lli = ll_i2info(inode);
-		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-		struct obd_client_handle **och_p;
-		__u64 *och_usecount;
-
-		if (!(fmode & file->f_mode) || (file->f_mode & FMODE_EXEC))
-			return ERR_PTR(-EPERM);
-
-		/* Get the openhandle of the file */
-		rc = -EBUSY;
-		mutex_lock(&lli->lli_och_mutex);
-		if (fd->fd_lease_och != NULL) {
-			mutex_unlock(&lli->lli_och_mutex);
-			return ERR_PTR(rc);
-		}
-
-		if (fd->fd_och == NULL) {
-			if (file->f_mode & FMODE_WRITE) {
-				LASSERT(lli->lli_mds_write_och != NULL);
-				och_p = &lli->lli_mds_write_och;
-				och_usecount = &lli->lli_open_fd_write_count;
-			} else {
-				LASSERT(lli->lli_mds_read_och != NULL);
-				och_p = &lli->lli_mds_read_och;
-				och_usecount = &lli->lli_open_fd_read_count;
-			}
-			if (*och_usecount == 1) {
-				fd->fd_och = *och_p;
-				*och_p = NULL;
-				*och_usecount = 0;
-				rc = 0;
-			}
-		}
-		mutex_unlock(&lli->lli_och_mutex);
-		if (rc < 0) /* more than 1 opener */
-			return ERR_PTR(rc);
-
-		LASSERT(fd->fd_och != NULL);
-		old_handle = fd->fd_och->och_fh;
-	}
-
-	och = kzalloc(sizeof(*och), GFP_NOFS);
-	if (!och)
-		return ERR_PTR(-ENOMEM);
-
-	op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, 0, 0,
-					LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data)) {
-		rc = PTR_ERR(op_data);
-		goto out;
-	}
-
-	/* To tell the MDT this openhandle is from the same owner */
-	op_data->op_handle = old_handle;
-
-	it.it_flags = fmode | open_flags;
-	it.it_flags |= MDS_OPEN_LOCK | MDS_OPEN_BY_FID | MDS_OPEN_LEASE;
-	rc = md_intent_lock(sbi->ll_md_exp, op_data, NULL, 0, &it, 0, &req,
-				ll_md_blocking_lease_ast,
-	/* LDLM_FL_NO_LRU: To not put the lease lock into LRU list, otherwise
-	 * it can be cancelled which may mislead applications that the lease is
-	 * broken;
-	 * LDLM_FL_EXCL: Set this flag so that it won't be matched by normal
-	 * open in ll_md_blocking_ast(). Otherwise as ll_md_blocking_lease_ast
-	 * doesn't deal with openhandle, so normal openhandle will be leaked. */
-				LDLM_FL_NO_LRU | LDLM_FL_EXCL);
-	ll_finish_md_op_data(op_data);
-	ptlrpc_req_finished(req);
-	if (rc < 0)
-		goto out_release_it;
-
-	if (it_disposition(&it, DISP_LOOKUP_NEG)) {
-		rc = -ENOENT;
-		goto out_release_it;
-	}
-
-	rc = it_open_error(DISP_OPEN_OPEN, &it);
-	if (rc)
-		goto out_release_it;
-
-	LASSERT(it_disposition(&it, DISP_ENQ_OPEN_REF));
-	ll_och_fill(sbi->ll_md_exp, &it, och);
-
-	if (!it_disposition(&it, DISP_OPEN_LEASE)) /* old server? */ {
-		rc = -EOPNOTSUPP;
-		goto out_close;
-	}
-
-	/* already get lease, handle lease lock */
-	ll_set_lock_data(sbi->ll_md_exp, inode, &it, NULL);
-	if (it.d.lustre.it_lock_mode == 0 ||
-	    it.d.lustre.it_lock_bits != MDS_INODELOCK_OPEN) {
-		/* open lock must return for lease */
-		CERROR(DFID "lease granted but no open lock, %d/%llu.\n",
-			PFID(ll_inode2fid(inode)), it.d.lustre.it_lock_mode,
-			it.d.lustre.it_lock_bits);
-		rc = -EPROTO;
-		goto out_close;
-	}
-
-	ll_intent_release(&it);
-	return och;
-
-out_close:
-	rc2 = ll_close_inode_openhandle(sbi->ll_md_exp, inode, och, NULL);
-	if (rc2)
-		CERROR("Close openhandle returned %d\n", rc2);
-
-	/* cancel open lock */
-	if (it.d.lustre.it_lock_mode != 0) {
-		ldlm_lock_decref_and_cancel(&och->och_lease_handle,
-						it.d.lustre.it_lock_mode);
-		it.d.lustre.it_lock_mode = 0;
-	}
-out_release_it:
-	ll_intent_release(&it);
-out:
-	kfree(och);
-	return ERR_PTR(rc);
-}
-
-/**
- * Release lease and close the file.
- * It will check if the lease has ever broken.
- */
-static int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
-			  bool *lease_broken)
-{
-	struct ldlm_lock *lock;
-	bool cancelled = true;
-	int rc;
-
-	lock = ldlm_handle2lock(&och->och_lease_handle);
-	if (lock != NULL) {
-		lock_res_and_lock(lock);
-		cancelled = ldlm_is_cancel(lock);
-		unlock_res_and_lock(lock);
-		ldlm_lock_put(lock);
-	}
-
-	CDEBUG(D_INODE, "lease for "DFID" broken? %d\n",
-		PFID(&ll_i2info(inode)->lli_fid), cancelled);
-
-	if (!cancelled)
-		ldlm_cli_cancel(&och->och_lease_handle, 0);
-	if (lease_broken != NULL)
-		*lease_broken = cancelled;
-
-	rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, inode, och,
-				       NULL);
-	return rc;
-}
-
-/* Fills the obdo with the attributes for the lsm */
-static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
-			  struct obd_capa *capa, struct obdo *obdo,
-			  __u64 ioepoch, int sync)
-{
-	struct ptlrpc_request_set *set;
-	struct obd_info	    oinfo = { { { 0 } } };
-	int			rc;
-
-	LASSERT(lsm != NULL);
-
-	oinfo.oi_md = lsm;
-	oinfo.oi_oa = obdo;
-	oinfo.oi_oa->o_oi = lsm->lsm_oi;
-	oinfo.oi_oa->o_mode = S_IFREG;
-	oinfo.oi_oa->o_ioepoch = ioepoch;
-	oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE |
-			       OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
-			       OBD_MD_FLBLKSZ | OBD_MD_FLATIME |
-			       OBD_MD_FLMTIME | OBD_MD_FLCTIME |
-			       OBD_MD_FLGROUP | OBD_MD_FLEPOCH |
-			       OBD_MD_FLDATAVERSION;
-	oinfo.oi_capa = capa;
-	if (sync) {
-		oinfo.oi_oa->o_valid |= OBD_MD_FLFLAGS;
-		oinfo.oi_oa->o_flags |= OBD_FL_SRVLOCK;
-	}
-
-	set = ptlrpc_prep_set();
-	if (set == NULL) {
-		CERROR("can't allocate ptlrpc set\n");
-		rc = -ENOMEM;
-	} else {
-		rc = obd_getattr_async(exp, &oinfo, set);
-		if (rc == 0)
-			rc = ptlrpc_set_wait(set);
-		ptlrpc_set_destroy(set);
-	}
-	if (rc == 0)
-		oinfo.oi_oa->o_valid &= (OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ |
-					 OBD_MD_FLATIME | OBD_MD_FLMTIME |
-					 OBD_MD_FLCTIME | OBD_MD_FLSIZE |
-					 OBD_MD_FLDATAVERSION);
-	return rc;
-}
-
-/**
-  * Performs the getattr on the inode and updates its fields.
-  * If @sync != 0, perform the getattr under the server-side lock.
-  */
-int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
-		     __u64 ioepoch, int sync)
-{
-	struct obd_capa      *capa = ll_mdscapa_get(inode);
-	struct lov_stripe_md *lsm;
-	int rc;
-
-	lsm = ccc_inode_lsm_get(inode);
-	rc = ll_lsm_getattr(lsm, ll_i2dtexp(inode),
-			    capa, obdo, ioepoch, sync);
-	capa_put(capa);
-	if (rc == 0) {
-		struct ost_id *oi = lsm ? &lsm->lsm_oi : &obdo->o_oi;
-
-		obdo_refresh_inode(inode, obdo, obdo->o_valid);
-		CDEBUG(D_INODE, "objid " DOSTID " size %llu, blocks %llu, blksize %lu\n",
-		       POSTID(oi), i_size_read(inode),
-		       (unsigned long long)inode->i_blocks,
-		       1UL << inode->i_blkbits);
-	}
-	ccc_inode_lsm_put(inode, lsm);
-	return rc;
-}
-
-int ll_merge_lvb(const struct lu_env *env, struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct cl_object *obj = lli->lli_clob;
-	struct cl_attr *attr = ccc_env_thread_attr(env);
-	struct ost_lvb lvb;
-	int rc = 0;
-
-	ll_inode_size_lock(inode);
-	/* merge timestamps the most recently obtained from mds with
-	   timestamps obtained from osts */
-	LTIME_S(inode->i_atime) = lli->lli_lvb.lvb_atime;
-	LTIME_S(inode->i_mtime) = lli->lli_lvb.lvb_mtime;
-	LTIME_S(inode->i_ctime) = lli->lli_lvb.lvb_ctime;
-
-	lvb.lvb_size = i_size_read(inode);
-	lvb.lvb_blocks = inode->i_blocks;
-	lvb.lvb_mtime = LTIME_S(inode->i_mtime);
-	lvb.lvb_atime = LTIME_S(inode->i_atime);
-	lvb.lvb_ctime = LTIME_S(inode->i_ctime);
-
-	cl_object_attr_lock(obj);
-	rc = cl_object_attr_get(env, obj, attr);
-	cl_object_attr_unlock(obj);
-
-	if (rc == 0) {
-		if (lvb.lvb_atime < attr->cat_atime)
-			lvb.lvb_atime = attr->cat_atime;
-		if (lvb.lvb_ctime < attr->cat_ctime)
-			lvb.lvb_ctime = attr->cat_ctime;
-		if (lvb.lvb_mtime < attr->cat_mtime)
-			lvb.lvb_mtime = attr->cat_mtime;
-
-		CDEBUG(D_VFSTRACE, DFID" updating i_size %llu\n",
-				PFID(&lli->lli_fid), attr->cat_size);
-		cl_isize_write_nolock(inode, attr->cat_size);
-
-		inode->i_blocks = attr->cat_blocks;
-
-		LTIME_S(inode->i_mtime) = lvb.lvb_mtime;
-		LTIME_S(inode->i_atime) = lvb.lvb_atime;
-		LTIME_S(inode->i_ctime) = lvb.lvb_ctime;
-	}
-	ll_inode_size_unlock(inode);
-
-	return rc;
-}
-
-int ll_glimpse_ioctl(struct ll_sb_info *sbi, struct lov_stripe_md *lsm,
-		     lstat_t *st)
-{
-	struct obdo obdo = { 0 };
-	int rc;
-
-	rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, &obdo, 0, 0);
-	if (rc == 0) {
-		st->st_size   = obdo.o_size;
-		st->st_blocks = obdo.o_blocks;
-		st->st_mtime  = obdo.o_mtime;
-		st->st_atime  = obdo.o_atime;
-		st->st_ctime  = obdo.o_ctime;
-	}
-	return rc;
-}
-
-static bool file_is_noatime(const struct file *file)
-{
-	const struct vfsmount *mnt = file->f_path.mnt;
-	const struct inode *inode = file_inode(file);
-
-	/* Adapted from file_accessed() and touch_atime().*/
-	if (file->f_flags & O_NOATIME)
-		return true;
-
-	if (inode->i_flags & S_NOATIME)
-		return true;
-
-	if (IS_NOATIME(inode))
-		return true;
-
-	if (mnt->mnt_flags & (MNT_NOATIME | MNT_READONLY))
-		return true;
-
-	if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))
-		return true;
-
-	if ((inode->i_sb->s_flags & MS_NODIRATIME) && S_ISDIR(inode->i_mode))
-		return true;
-
-	return false;
-}
-
-void ll_io_init(struct cl_io *io, const struct file *file, int write)
-{
-	struct inode *inode = file_inode(file);
-
-	io->u.ci_rw.crw_nonblock = file->f_flags & O_NONBLOCK;
-	if (write) {
-		io->u.ci_wr.wr_append = !!(file->f_flags & O_APPEND);
-		io->u.ci_wr.wr_sync = file->f_flags & O_SYNC ||
-				      file->f_flags & O_DIRECT ||
-				      IS_SYNC(inode);
-	}
-	io->ci_obj     = ll_i2info(inode)->lli_clob;
-	io->ci_lockreq = CILR_MAYBE;
-	if (ll_file_nolock(file)) {
-		io->ci_lockreq = CILR_NEVER;
-		io->ci_no_srvlock = 1;
-	} else if (file->f_flags & O_APPEND) {
-		io->ci_lockreq = CILR_MANDATORY;
-	}
-
-	io->ci_noatime = file_is_noatime(file);
-}
-
-static ssize_t
-ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args,
-		   struct file *file, enum cl_io_type iot,
-		   loff_t *ppos, size_t count)
-{
-	struct ll_inode_info *lli = ll_i2info(file_inode(file));
-	struct ll_file_data  *fd  = LUSTRE_FPRIVATE(file);
-	struct cl_io	 *io;
-	ssize_t	       result;
-
-restart:
-	io = ccc_env_thread_io(env);
-	ll_io_init(io, file, iot == CIT_WRITE);
-
-	if (cl_io_rw_init(env, io, iot, *ppos, count) == 0) {
-		struct vvp_io *vio = vvp_env_io(env);
-		struct ccc_io *cio = ccc_env_io(env);
-		int write_mutex_locked = 0;
-
-		cio->cui_fd  = LUSTRE_FPRIVATE(file);
-		vio->cui_io_subtype = args->via_io_subtype;
-
-		switch (vio->cui_io_subtype) {
-		case IO_NORMAL:
-			cio->cui_iter = args->u.normal.via_iter;
-			cio->cui_iocb = args->u.normal.via_iocb;
-			if ((iot == CIT_WRITE) &&
-			    !(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
-				if (mutex_lock_interruptible(&lli->
-							       lli_write_mutex)) {
-					result = -ERESTARTSYS;
-					goto out;
-				}
-				write_mutex_locked = 1;
-			} else if (iot == CIT_READ) {
-				down_read(&lli->lli_trunc_sem);
-			}
-			break;
-		case IO_SPLICE:
-			vio->u.splice.cui_pipe = args->u.splice.via_pipe;
-			vio->u.splice.cui_flags = args->u.splice.via_flags;
-			break;
-		default:
-			CERROR("Unknown IO type - %u\n", vio->cui_io_subtype);
-			LBUG();
-		}
-		result = cl_io_loop(env, io);
-		if (write_mutex_locked)
-			mutex_unlock(&lli->lli_write_mutex);
-		else if (args->via_io_subtype == IO_NORMAL && iot == CIT_READ)
-			up_read(&lli->lli_trunc_sem);
-	} else {
-		/* cl_io_rw_init() handled IO */
-		result = io->ci_result;
-	}
-
-	if (io->ci_nob > 0) {
-		result = io->ci_nob;
-		*ppos = io->u.ci_wr.wr.crw_pos;
-	}
-	goto out;
-out:
-	cl_io_fini(env, io);
-	/* If any bit been read/written (result != 0), we just return
-	 * short read/write instead of restart io. */
-	if ((result == 0 || result == -ENODATA) && io->ci_need_restart) {
-		CDEBUG(D_VFSTRACE, "Restart %s on %pD from %lld, count:%zd\n",
-		       iot == CIT_READ ? "read" : "write",
-		       file, *ppos, count);
-		LASSERTF(io->ci_nob == 0, "%zd", io->ci_nob);
-		goto restart;
-	}
-
-	if (iot == CIT_READ) {
-		if (result >= 0)
-			ll_stats_ops_tally(ll_i2sbi(file_inode(file)),
-					   LPROC_LL_READ_BYTES, result);
-	} else if (iot == CIT_WRITE) {
-		if (result >= 0) {
-			ll_stats_ops_tally(ll_i2sbi(file_inode(file)),
-					   LPROC_LL_WRITE_BYTES, result);
-			fd->fd_write_failed = false;
-		} else if (result != -ERESTARTSYS) {
-			fd->fd_write_failed = true;
-		}
-	}
-
-	return result;
-}
-
-static ssize_t ll_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
-{
-	struct lu_env      *env;
-	struct vvp_io_args *args;
-	ssize_t	     result;
-	int		 refcheck;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	args = vvp_env_args(env, IO_NORMAL);
-	args->u.normal.via_iter = to;
-	args->u.normal.via_iocb = iocb;
-
-	result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_READ,
-				    &iocb->ki_pos, iov_iter_count(to));
-	cl_env_put(env, &refcheck);
-	return result;
-}
-
-/*
- * Write to a file (through the page cache).
- */
-static ssize_t ll_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
-{
-	struct lu_env      *env;
-	struct vvp_io_args *args;
-	ssize_t	     result;
-	int		 refcheck;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	args = vvp_env_args(env, IO_NORMAL);
-	args->u.normal.via_iter = from;
-	args->u.normal.via_iocb = iocb;
-
-	result = ll_file_io_generic(env, args, iocb->ki_filp, CIT_WRITE,
-				  &iocb->ki_pos, iov_iter_count(from));
-	cl_env_put(env, &refcheck);
-	return result;
-}
-
-/*
- * Send file content (through pagecache) somewhere with helper
- */
-static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos,
-				   struct pipe_inode_info *pipe, size_t count,
-				   unsigned int flags)
-{
-	struct lu_env      *env;
-	struct vvp_io_args *args;
-	ssize_t	     result;
-	int		 refcheck;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	args = vvp_env_args(env, IO_SPLICE);
-	args->u.splice.via_pipe = pipe;
-	args->u.splice.via_flags = flags;
-
-	result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count);
-	cl_env_put(env, &refcheck);
-	return result;
-}
-
-static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, u32 ost_idx)
-{
-	struct obd_export *exp = ll_i2dtexp(inode);
-	struct obd_trans_info oti = { 0 };
-	struct obdo *oa = NULL;
-	int lsm_size;
-	int rc = 0;
-	struct lov_stripe_md *lsm = NULL, *lsm2;
-
-	OBDO_ALLOC(oa);
-	if (oa == NULL)
-		return -ENOMEM;
-
-	lsm = ccc_inode_lsm_get(inode);
-	if (!lsm_has_objects(lsm)) {
-		rc = -ENOENT;
-		goto out;
-	}
-
-	lsm_size = sizeof(*lsm) + (sizeof(struct lov_oinfo) *
-		   (lsm->lsm_stripe_count));
-
-	lsm2 = libcfs_kvzalloc(lsm_size, GFP_NOFS);
-	if (lsm2 == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	oa->o_oi = *oi;
-	oa->o_nlink = ost_idx;
-	oa->o_flags |= OBD_FL_RECREATE_OBJS;
-	oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | OBD_MD_FLGROUP;
-	obdo_from_inode(oa, inode, OBD_MD_FLTYPE | OBD_MD_FLATIME |
-				   OBD_MD_FLMTIME | OBD_MD_FLCTIME);
-	obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid);
-	memcpy(lsm2, lsm, lsm_size);
-	ll_inode_size_lock(inode);
-	rc = obd_create(NULL, exp, oa, &lsm2, &oti);
-	ll_inode_size_unlock(inode);
-
-	kvfree(lsm2);
-	goto out;
-out:
-	ccc_inode_lsm_put(inode, lsm);
-	OBDO_FREE(oa);
-	return rc;
-}
-
-static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg)
-{
-	struct ll_recreate_obj ucreat;
-	struct ost_id		oi;
-
-	if (!capable(CFS_CAP_SYS_ADMIN))
-		return -EPERM;
-
-	if (copy_from_user(&ucreat, (struct ll_recreate_obj *)arg,
-			   sizeof(ucreat)))
-		return -EFAULT;
-
-	ostid_set_seq_mdt0(&oi);
-	ostid_set_id(&oi, ucreat.lrc_id);
-	return ll_lov_recreate(inode, &oi, ucreat.lrc_ost_idx);
-}
-
-static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg)
-{
-	struct lu_fid	fid;
-	struct ost_id	oi;
-	u32		ost_idx;
-
-	if (!capable(CFS_CAP_SYS_ADMIN))
-		return -EPERM;
-
-	if (copy_from_user(&fid, (struct lu_fid *)arg, sizeof(fid)))
-		return -EFAULT;
-
-	fid_to_ostid(&fid, &oi);
-	ost_idx = (fid_seq(&fid) >> 16) & 0xffff;
-	return ll_lov_recreate(inode, &oi, ost_idx);
-}
-
-int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry,
-			     int flags, struct lov_user_md *lum, int lum_size)
-{
-	struct lov_stripe_md *lsm = NULL;
-	struct lookup_intent oit = {.it_op = IT_OPEN, .it_flags = flags};
-	int rc = 0;
-
-	lsm = ccc_inode_lsm_get(inode);
-	if (lsm != NULL) {
-		ccc_inode_lsm_put(inode, lsm);
-		CDEBUG(D_IOCTL, "stripe already exists for ino %lu\n",
-		       inode->i_ino);
-		rc = -EEXIST;
-		goto out;
-	}
-
-	ll_inode_size_lock(inode);
-	rc = ll_intent_file_open(dentry, lum, lum_size, &oit);
-	if (rc)
-		goto out_unlock;
-	rc = oit.d.lustre.it_status;
-	if (rc < 0)
-		goto out_req_free;
-
-	ll_release_openhandle(inode, &oit);
-
-out_unlock:
-	ll_inode_size_unlock(inode);
-	ll_intent_release(&oit);
-	ccc_inode_lsm_put(inode, lsm);
-out:
-	return rc;
-out_req_free:
-	ptlrpc_req_finished((struct ptlrpc_request *) oit.d.lustre.it_data);
-	goto out;
-}
-
-int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
-			     struct lov_mds_md **lmmp, int *lmm_size,
-			     struct ptlrpc_request **request)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct mdt_body  *body;
-	struct lov_mds_md *lmm = NULL;
-	struct ptlrpc_request *req = NULL;
-	struct md_op_data *op_data;
-	int rc, lmmsize;
-
-	rc = ll_get_default_mdsize(sbi, &lmmsize);
-	if (rc)
-		return rc;
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, filename,
-				     strlen(filename), lmmsize,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	op_data->op_valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
-	rc = md_getattr_name(sbi->ll_md_exp, op_data, &req);
-	ll_finish_md_op_data(op_data);
-	if (rc < 0) {
-		CDEBUG(D_INFO, "md_getattr_name failed on %s: rc %d\n",
-		       filename, rc);
-		goto out;
-	}
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL); /* checked by mdc_getattr_name */
-
-	lmmsize = body->eadatasize;
-
-	if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
-			lmmsize == 0) {
-		rc = -ENODATA;
-		goto out;
-	}
-
-	lmm = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD, lmmsize);
-	LASSERT(lmm != NULL);
-
-	if ((lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V1)) &&
-	    (lmm->lmm_magic != cpu_to_le32(LOV_MAGIC_V3))) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	/*
-	 * This is coming from the MDS, so is probably in
-	 * little endian.  We convert it to host endian before
-	 * passing it to userspace.
-	 */
-	if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC)) {
-		int stripe_count;
-
-		stripe_count = le16_to_cpu(lmm->lmm_stripe_count);
-		if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
-			stripe_count = 0;
-
-		/* if function called for directory - we should
-		 * avoid swab not existent lsm objects */
-		if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) {
-			lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
-			if (S_ISREG(body->mode))
-				lustre_swab_lov_user_md_objects(
-				 ((struct lov_user_md_v1 *)lmm)->lmm_objects,
-				 stripe_count);
-		} else if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)) {
-			lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
-			if (S_ISREG(body->mode))
-				lustre_swab_lov_user_md_objects(
-				 ((struct lov_user_md_v3 *)lmm)->lmm_objects,
-				 stripe_count);
-		}
-	}
-
-out:
-	*lmmp = lmm;
-	*lmm_size = lmmsize;
-	*request = req;
-	return rc;
-}
-
-static int ll_lov_setea(struct inode *inode, struct file *file,
-			    unsigned long arg)
-{
-	int			 flags = MDS_OPEN_HAS_OBJS | FMODE_WRITE;
-	struct lov_user_md	*lump;
-	int			 lum_size = sizeof(struct lov_user_md) +
-					    sizeof(struct lov_user_ost_data);
-	int			 rc;
-
-	if (!capable(CFS_CAP_SYS_ADMIN))
-		return -EPERM;
-
-	lump = libcfs_kvzalloc(lum_size, GFP_NOFS);
-	if (lump == NULL)
-		return -ENOMEM;
-
-	if (copy_from_user(lump, (struct lov_user_md *)arg, lum_size)) {
-		kvfree(lump);
-		return -EFAULT;
-	}
-
-	rc = ll_lov_setstripe_ea_info(inode, file->f_path.dentry, flags, lump,
-				     lum_size);
-	cl_lov_delay_create_clear(&file->f_flags);
-
-	kvfree(lump);
-	return rc;
-}
-
-static int ll_lov_setstripe(struct inode *inode, struct file *file,
-			    unsigned long arg)
-{
-	struct lov_user_md_v3	 lumv3;
-	struct lov_user_md_v1	*lumv1 = (struct lov_user_md_v1 *)&lumv3;
-	struct lov_user_md_v1	*lumv1p = (struct lov_user_md_v1 *)arg;
-	struct lov_user_md_v3	*lumv3p = (struct lov_user_md_v3 *)arg;
-	int			 lum_size, rc;
-	int			 flags = FMODE_WRITE;
-
-	/* first try with v1 which is smaller than v3 */
-	lum_size = sizeof(struct lov_user_md_v1);
-	if (copy_from_user(lumv1, lumv1p, lum_size))
-		return -EFAULT;
-
-	if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) {
-		lum_size = sizeof(struct lov_user_md_v3);
-		if (copy_from_user(&lumv3, lumv3p, lum_size))
-			return -EFAULT;
-	}
-
-	rc = ll_lov_setstripe_ea_info(inode, file->f_path.dentry, flags, lumv1,
-				      lum_size);
-	cl_lov_delay_create_clear(&file->f_flags);
-	if (rc == 0) {
-		struct lov_stripe_md *lsm;
-		__u32 gen;
-
-		put_user(0, &lumv1p->lmm_stripe_count);
-
-		ll_layout_refresh(inode, &gen);
-		lsm = ccc_inode_lsm_get(inode);
-		rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode),
-				   0, lsm, (void *)arg);
-		ccc_inode_lsm_put(inode, lsm);
-	}
-	return rc;
-}
-
-static int ll_lov_getstripe(struct inode *inode, unsigned long arg)
-{
-	struct lov_stripe_md *lsm;
-	int rc = -ENODATA;
-
-	lsm = ccc_inode_lsm_get(inode);
-	if (lsm != NULL)
-		rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), 0,
-				   lsm, (void *)arg);
-	ccc_inode_lsm_put(inode, lsm);
-	return rc;
-}
-
-static int
-ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
-{
-	struct ll_inode_info   *lli = ll_i2info(inode);
-	struct ll_file_data    *fd = LUSTRE_FPRIVATE(file);
-	struct ccc_grouplock    grouplock;
-	int		     rc;
-
-	if (arg == 0) {
-		CWARN("group id for group lock must not be 0\n");
-		return -EINVAL;
-	}
-
-	if (ll_file_nolock(file))
-		return -EOPNOTSUPP;
-
-	spin_lock(&lli->lli_lock);
-	if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
-		CWARN("group lock already existed with gid %lu\n",
-		      fd->fd_grouplock.cg_gid);
-		spin_unlock(&lli->lli_lock);
-		return -EINVAL;
-	}
-	LASSERT(fd->fd_grouplock.cg_lock == NULL);
-	spin_unlock(&lli->lli_lock);
-
-	rc = cl_get_grouplock(cl_i2info(inode)->lli_clob,
-			      arg, (file->f_flags & O_NONBLOCK), &grouplock);
-	if (rc)
-		return rc;
-
-	spin_lock(&lli->lli_lock);
-	if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
-		spin_unlock(&lli->lli_lock);
-		CERROR("another thread just won the race\n");
-		cl_put_grouplock(&grouplock);
-		return -EINVAL;
-	}
-
-	fd->fd_flags |= LL_FILE_GROUP_LOCKED;
-	fd->fd_grouplock = grouplock;
-	spin_unlock(&lli->lli_lock);
-
-	CDEBUG(D_INFO, "group lock %lu obtained\n", arg);
-	return 0;
-}
-
-static int ll_put_grouplock(struct inode *inode, struct file *file,
-			    unsigned long arg)
-{
-	struct ll_inode_info   *lli = ll_i2info(inode);
-	struct ll_file_data    *fd = LUSTRE_FPRIVATE(file);
-	struct ccc_grouplock    grouplock;
-
-	spin_lock(&lli->lli_lock);
-	if (!(fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
-		spin_unlock(&lli->lli_lock);
-		CWARN("no group lock held\n");
-		return -EINVAL;
-	}
-	LASSERT(fd->fd_grouplock.cg_lock != NULL);
-
-	if (fd->fd_grouplock.cg_gid != arg) {
-		CWARN("group lock %lu doesn't match current id %lu\n",
-		       arg, fd->fd_grouplock.cg_gid);
-		spin_unlock(&lli->lli_lock);
-		return -EINVAL;
-	}
-
-	grouplock = fd->fd_grouplock;
-	memset(&fd->fd_grouplock, 0, sizeof(fd->fd_grouplock));
-	fd->fd_flags &= ~LL_FILE_GROUP_LOCKED;
-	spin_unlock(&lli->lli_lock);
-
-	cl_put_grouplock(&grouplock);
-	CDEBUG(D_INFO, "group lock %lu released\n", arg);
-	return 0;
-}
-
-/**
- * Close inode open handle
- *
- * \param inode  [in]     inode in question
- * \param it     [in,out] intent which contains open info and result
- *
- * \retval 0     success
- * \retval <0    failure
- */
-int ll_release_openhandle(struct inode *inode, struct lookup_intent *it)
-{
-	struct obd_client_handle *och;
-	int rc;
-
-	LASSERT(inode);
-
-	/* Root ? Do nothing. */
-	if (is_root_inode(inode))
-		return 0;
-
-	/* No open handle to close? Move away */
-	if (!it_disposition(it, DISP_OPEN_OPEN))
-		return 0;
-
-	LASSERT(it_open_error(DISP_OPEN_OPEN, it) == 0);
-
-	och = kzalloc(sizeof(*och), GFP_NOFS);
-	if (!och) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	ll_och_fill(ll_i2sbi(inode)->ll_md_exp, it, och);
-
-	rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp,
-				       inode, och, NULL);
-out:
-	/* this one is in place of ll_file_open */
-	if (it_disposition(it, DISP_ENQ_OPEN_REF)) {
-		ptlrpc_req_finished(it->d.lustre.it_data);
-		it_clear_disposition(it, DISP_ENQ_OPEN_REF);
-	}
-	return rc;
-}
-
-/**
- * Get size for inode for which FIEMAP mapping is requested.
- * Make the FIEMAP get_info call and returns the result.
- */
-static int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap,
-			size_t num_bytes)
-{
-	struct obd_export *exp = ll_i2dtexp(inode);
-	struct lov_stripe_md *lsm = NULL;
-	struct ll_fiemap_info_key fm_key = { .name = KEY_FIEMAP, };
-	__u32 vallen = num_bytes;
-	int rc;
-
-	/* Checks for fiemap flags */
-	if (fiemap->fm_flags & ~LUSTRE_FIEMAP_FLAGS_COMPAT) {
-		fiemap->fm_flags &= ~LUSTRE_FIEMAP_FLAGS_COMPAT;
-		return -EBADR;
-	}
-
-	/* Check for FIEMAP_FLAG_SYNC */
-	if (fiemap->fm_flags & FIEMAP_FLAG_SYNC) {
-		rc = filemap_fdatawrite(inode->i_mapping);
-		if (rc)
-			return rc;
-	}
-
-	lsm = ccc_inode_lsm_get(inode);
-	if (lsm == NULL)
-		return -ENOENT;
-
-	/* If the stripe_count > 1 and the application does not understand
-	 * DEVICE_ORDER flag, then it cannot interpret the extents correctly.
-	 */
-	if (lsm->lsm_stripe_count > 1 &&
-	    !(fiemap->fm_flags & FIEMAP_FLAG_DEVICE_ORDER)) {
-		rc = -EOPNOTSUPP;
-		goto out;
-	}
-
-	fm_key.oa.o_oi = lsm->lsm_oi;
-	fm_key.oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
-
-	if (i_size_read(inode) == 0) {
-		rc = ll_glimpse_size(inode);
-		if (rc)
-			goto out;
-	}
-
-	obdo_from_inode(&fm_key.oa, inode, OBD_MD_FLSIZE);
-	obdo_set_parent_fid(&fm_key.oa, &ll_i2info(inode)->lli_fid);
-	/* If filesize is 0, then there would be no objects for mapping */
-	if (fm_key.oa.o_size == 0) {
-		fiemap->fm_mapped_extents = 0;
-		rc = 0;
-		goto out;
-	}
-
-	memcpy(&fm_key.fiemap, fiemap, sizeof(*fiemap));
-
-	rc = obd_get_info(NULL, exp, sizeof(fm_key), &fm_key, &vallen,
-			  fiemap, lsm);
-	if (rc)
-		CERROR("obd_get_info failed: rc = %d\n", rc);
-
-out:
-	ccc_inode_lsm_put(inode, lsm);
-	return rc;
-}
-
-int ll_fid2path(struct inode *inode, void __user *arg)
-{
-	struct obd_export *exp = ll_i2mdexp(inode);
-	const struct getinfo_fid2path __user *gfin = arg;
-	struct getinfo_fid2path *gfout;
-	u32 pathlen;
-	size_t outsize;
-	int rc;
-
-	if (!capable(CFS_CAP_DAC_READ_SEARCH) &&
-	    !(ll_i2sbi(inode)->ll_flags & LL_SBI_USER_FID2PATH))
-		return -EPERM;
-
-	/* Only need to get the buflen */
-	if (get_user(pathlen, &gfin->gf_pathlen))
-		return -EFAULT;
-
-	if (pathlen > PATH_MAX)
-		return -EINVAL;
-
-	outsize = sizeof(*gfout) + pathlen;
-
-	gfout = kzalloc(outsize, GFP_NOFS);
-	if (!gfout)
-		return -ENOMEM;
-
-	if (copy_from_user(gfout, arg, sizeof(*gfout))) {
-		rc = -EFAULT;
-		goto gf_free;
-	}
-
-	/* Call mdc_iocontrol */
-	rc = obd_iocontrol(OBD_IOC_FID2PATH, exp, outsize, gfout, NULL);
-	if (rc != 0)
-		goto gf_free;
-
-	if (copy_to_user(arg, gfout, outsize))
-		rc = -EFAULT;
-
-gf_free:
-	kfree(gfout);
-	return rc;
-}
-
-static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg)
-{
-	struct ll_user_fiemap *fiemap_s;
-	size_t num_bytes, ret_bytes;
-	unsigned int extent_count;
-	int rc = 0;
-
-	/* Get the extent count so we can calculate the size of
-	 * required fiemap buffer */
-	if (get_user(extent_count,
-	    &((struct ll_user_fiemap __user *)arg)->fm_extent_count))
-		return -EFAULT;
-
-	if (extent_count >=
-	    (SIZE_MAX - sizeof(*fiemap_s)) / sizeof(struct ll_fiemap_extent))
-		return -EINVAL;
-	num_bytes = sizeof(*fiemap_s) + (extent_count *
-					 sizeof(struct ll_fiemap_extent));
-
-	fiemap_s = libcfs_kvzalloc(num_bytes, GFP_NOFS);
-	if (fiemap_s == NULL)
-		return -ENOMEM;
-
-	/* get the fiemap value */
-	if (copy_from_user(fiemap_s, (struct ll_user_fiemap __user *)arg,
-			   sizeof(*fiemap_s))) {
-		rc = -EFAULT;
-		goto error;
-	}
-
-	/* If fm_extent_count is non-zero, read the first extent since
-	 * it is used to calculate end_offset and device from previous
-	 * fiemap call. */
-	if (extent_count) {
-		if (copy_from_user(&fiemap_s->fm_extents[0],
-		    (char __user *)arg + sizeof(*fiemap_s),
-		    sizeof(struct ll_fiemap_extent))) {
-			rc = -EFAULT;
-			goto error;
-		}
-	}
-
-	rc = ll_do_fiemap(inode, fiemap_s, num_bytes);
-	if (rc)
-		goto error;
-
-	ret_bytes = sizeof(struct ll_user_fiemap);
-
-	if (extent_count != 0)
-		ret_bytes += (fiemap_s->fm_mapped_extents *
-				 sizeof(struct ll_fiemap_extent));
-
-	if (copy_to_user((void *)arg, fiemap_s, ret_bytes))
-		rc = -EFAULT;
-
-error:
-	kvfree(fiemap_s);
-	return rc;
-}
-
-/*
- * Read the data_version for inode.
- *
- * This value is computed using stripe object version on OST.
- * Version is computed using server side locking.
- *
- * @param extent_lock  Take extent lock. Not needed if a process is already
- *		       holding the OST object group locks.
- */
-int ll_data_version(struct inode *inode, __u64 *data_version,
-		    int extent_lock)
-{
-	struct lov_stripe_md	*lsm = NULL;
-	struct ll_sb_info	*sbi = ll_i2sbi(inode);
-	struct obdo		*obdo = NULL;
-	int			 rc;
-
-	/* If no stripe, we consider version is 0. */
-	lsm = ccc_inode_lsm_get(inode);
-	if (!lsm_has_objects(lsm)) {
-		*data_version = 0;
-		CDEBUG(D_INODE, "No object for inode\n");
-		rc = 0;
-		goto out;
-	}
-
-	obdo = kzalloc(sizeof(*obdo), GFP_NOFS);
-	if (!obdo) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, obdo, 0, extent_lock);
-	if (rc == 0) {
-		if (!(obdo->o_valid & OBD_MD_FLDATAVERSION))
-			rc = -EOPNOTSUPP;
-		else
-			*data_version = obdo->o_data_version;
-	}
-
-	kfree(obdo);
-out:
-	ccc_inode_lsm_put(inode, lsm);
-	return rc;
-}
-
-/*
- * Trigger a HSM release request for the provided inode.
- */
-int ll_hsm_release(struct inode *inode)
-{
-	struct cl_env_nest nest;
-	struct lu_env *env;
-	struct obd_client_handle *och = NULL;
-	__u64 data_version = 0;
-	int rc;
-
-
-	CDEBUG(D_INODE, "%s: Releasing file "DFID".\n",
-	       ll_get_fsname(inode->i_sb, NULL, 0),
-	       PFID(&ll_i2info(inode)->lli_fid));
-
-	och = ll_lease_open(inode, NULL, FMODE_WRITE, MDS_OPEN_RELEASE);
-	if (IS_ERR(och)) {
-		rc = PTR_ERR(och);
-		goto out;
-	}
-
-	/* Grab latest data_version and [am]time values */
-	rc = ll_data_version(inode, &data_version, 1);
-	if (rc != 0)
-		goto out;
-
-	env = cl_env_nested_get(&nest);
-	if (IS_ERR(env)) {
-		rc = PTR_ERR(env);
-		goto out;
-	}
-
-	ll_merge_lvb(env, inode);
-	cl_env_nested_put(&nest, env);
-
-	/* Release the file.
-	 * NB: lease lock handle is released in mdc_hsm_release_pack() because
-	 * we still need it to pack l_remote_handle to MDT. */
-	rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, inode, och,
-				       &data_version);
-	och = NULL;
-
-
-out:
-	if (och != NULL && !IS_ERR(och)) /* close the file */
-		ll_lease_close(och, inode, NULL);
-
-	return rc;
-}
-
-struct ll_swap_stack {
-	struct iattr		 ia1, ia2;
-	__u64			 dv1, dv2;
-	struct inode		*inode1, *inode2;
-	bool			 check_dv1, check_dv2;
-};
-
-static int ll_swap_layouts(struct file *file1, struct file *file2,
-			   struct lustre_swap_layouts *lsl)
-{
-	struct mdc_swap_layouts	 msl;
-	struct md_op_data	*op_data;
-	__u32			 gid;
-	__u64			 dv;
-	struct ll_swap_stack	*llss = NULL;
-	int			 rc;
-
-	llss = kzalloc(sizeof(*llss), GFP_NOFS);
-	if (!llss)
-		return -ENOMEM;
-
-	llss->inode1 = file_inode(file1);
-	llss->inode2 = file_inode(file2);
-
-	if (!S_ISREG(llss->inode2->i_mode)) {
-		rc = -EINVAL;
-		goto free;
-	}
-
-	if (inode_permission(llss->inode1, MAY_WRITE) ||
-	    inode_permission(llss->inode2, MAY_WRITE)) {
-		rc = -EPERM;
-		goto free;
-	}
-
-	if (llss->inode2->i_sb != llss->inode1->i_sb) {
-		rc = -EXDEV;
-		goto free;
-	}
-
-	/* we use 2 bool because it is easier to swap than 2 bits */
-	if (lsl->sl_flags & SWAP_LAYOUTS_CHECK_DV1)
-		llss->check_dv1 = true;
-
-	if (lsl->sl_flags & SWAP_LAYOUTS_CHECK_DV2)
-		llss->check_dv2 = true;
-
-	/* we cannot use lsl->sl_dvX directly because we may swap them */
-	llss->dv1 = lsl->sl_dv1;
-	llss->dv2 = lsl->sl_dv2;
-
-	rc = lu_fid_cmp(ll_inode2fid(llss->inode1), ll_inode2fid(llss->inode2));
-	if (rc == 0) /* same file, done! */ {
-		rc = 0;
-		goto free;
-	}
-
-	if (rc < 0) { /* sequentialize it */
-		swap(llss->inode1, llss->inode2);
-		swap(file1, file2);
-		swap(llss->dv1, llss->dv2);
-		swap(llss->check_dv1, llss->check_dv2);
-	}
-
-	gid = lsl->sl_gid;
-	if (gid != 0) { /* application asks to flush dirty cache */
-		rc = ll_get_grouplock(llss->inode1, file1, gid);
-		if (rc < 0)
-			goto free;
-
-		rc = ll_get_grouplock(llss->inode2, file2, gid);
-		if (rc < 0) {
-			ll_put_grouplock(llss->inode1, file1, gid);
-			goto free;
-		}
-	}
-
-	/* to be able to restore mtime and atime after swap
-	 * we need to first save them */
-	if (lsl->sl_flags &
-	    (SWAP_LAYOUTS_KEEP_MTIME | SWAP_LAYOUTS_KEEP_ATIME)) {
-		llss->ia1.ia_mtime = llss->inode1->i_mtime;
-		llss->ia1.ia_atime = llss->inode1->i_atime;
-		llss->ia1.ia_valid = ATTR_MTIME | ATTR_ATIME;
-		llss->ia2.ia_mtime = llss->inode2->i_mtime;
-		llss->ia2.ia_atime = llss->inode2->i_atime;
-		llss->ia2.ia_valid = ATTR_MTIME | ATTR_ATIME;
-	}
-
-	/* ultimate check, before swapping the layouts we check if
-	 * dataversion has changed (if requested) */
-	if (llss->check_dv1) {
-		rc = ll_data_version(llss->inode1, &dv, 0);
-		if (rc)
-			goto putgl;
-		if (dv != llss->dv1) {
-			rc = -EAGAIN;
-			goto putgl;
-		}
-	}
-
-	if (llss->check_dv2) {
-		rc = ll_data_version(llss->inode2, &dv, 0);
-		if (rc)
-			goto putgl;
-		if (dv != llss->dv2) {
-			rc = -EAGAIN;
-			goto putgl;
-		}
-	}
-
-	/* struct md_op_data is used to send the swap args to the mdt
-	 * only flags is missing, so we use struct mdc_swap_layouts
-	 * through the md_op_data->op_data */
-	/* flags from user space have to be converted before they are send to
-	 * server, no flag is sent today, they are only used on the client */
-	msl.msl_flags = 0;
-	rc = -ENOMEM;
-	op_data = ll_prep_md_op_data(NULL, llss->inode1, llss->inode2, NULL, 0,
-				     0, LUSTRE_OPC_ANY, &msl);
-	if (IS_ERR(op_data)) {
-		rc = PTR_ERR(op_data);
-		goto free;
-	}
-
-	rc = obd_iocontrol(LL_IOC_LOV_SWAP_LAYOUTS, ll_i2mdexp(llss->inode1),
-			   sizeof(*op_data), op_data, NULL);
-	ll_finish_md_op_data(op_data);
-
-putgl:
-	if (gid != 0) {
-		ll_put_grouplock(llss->inode2, file2, gid);
-		ll_put_grouplock(llss->inode1, file1, gid);
-	}
-
-	/* rc can be set from obd_iocontrol() or from a GOTO(putgl, ...) */
-	if (rc != 0)
-		goto free;
-
-	/* clear useless flags */
-	if (!(lsl->sl_flags & SWAP_LAYOUTS_KEEP_MTIME)) {
-		llss->ia1.ia_valid &= ~ATTR_MTIME;
-		llss->ia2.ia_valid &= ~ATTR_MTIME;
-	}
-
-	if (!(lsl->sl_flags & SWAP_LAYOUTS_KEEP_ATIME)) {
-		llss->ia1.ia_valid &= ~ATTR_ATIME;
-		llss->ia2.ia_valid &= ~ATTR_ATIME;
-	}
-
-	/* update time if requested */
-	rc = 0;
-	if (llss->ia2.ia_valid != 0) {
-		mutex_lock(&llss->inode1->i_mutex);
-		rc = ll_setattr(file1->f_path.dentry, &llss->ia2);
-		mutex_unlock(&llss->inode1->i_mutex);
-	}
-
-	if (llss->ia1.ia_valid != 0) {
-		int rc1;
-
-		mutex_lock(&llss->inode2->i_mutex);
-		rc1 = ll_setattr(file2->f_path.dentry, &llss->ia1);
-		mutex_unlock(&llss->inode2->i_mutex);
-		if (rc == 0)
-			rc = rc1;
-	}
-
-free:
-	kfree(llss);
-
-	return rc;
-}
-
-static int ll_hsm_state_set(struct inode *inode, struct hsm_state_set *hss)
-{
-	struct md_op_data	*op_data;
-	int			 rc;
-
-	/* Non-root users are forbidden to set or clear flags which are
-	 * NOT defined in HSM_USER_MASK. */
-	if (((hss->hss_setmask | hss->hss_clearmask) & ~HSM_USER_MASK) &&
-	    !capable(CFS_CAP_SYS_ADMIN))
-		return -EPERM;
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-				     LUSTRE_OPC_ANY, hss);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	rc = obd_iocontrol(LL_IOC_HSM_STATE_SET, ll_i2mdexp(inode),
-			   sizeof(*op_data), op_data, NULL);
-
-	ll_finish_md_op_data(op_data);
-
-	return rc;
-}
-
-static int ll_hsm_import(struct inode *inode, struct file *file,
-			 struct hsm_user_import *hui)
-{
-	struct hsm_state_set	*hss = NULL;
-	struct iattr		*attr = NULL;
-	int			 rc;
-
-
-	if (!S_ISREG(inode->i_mode))
-		return -EINVAL;
-
-	/* set HSM flags */
-	hss = kzalloc(sizeof(*hss), GFP_NOFS);
-	if (!hss)
-		return -ENOMEM;
-
-	hss->hss_valid = HSS_SETMASK | HSS_ARCHIVE_ID;
-	hss->hss_archive_id = hui->hui_archive_id;
-	hss->hss_setmask = HS_ARCHIVED | HS_EXISTS | HS_RELEASED;
-	rc = ll_hsm_state_set(inode, hss);
-	if (rc != 0)
-		goto free_hss;
-
-	attr = kzalloc(sizeof(*attr), GFP_NOFS);
-	if (!attr) {
-		rc = -ENOMEM;
-		goto free_hss;
-	}
-
-	attr->ia_mode = hui->hui_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
-	attr->ia_mode |= S_IFREG;
-	attr->ia_uid = make_kuid(&init_user_ns, hui->hui_uid);
-	attr->ia_gid = make_kgid(&init_user_ns, hui->hui_gid);
-	attr->ia_size = hui->hui_size;
-	attr->ia_mtime.tv_sec = hui->hui_mtime;
-	attr->ia_mtime.tv_nsec = hui->hui_mtime_ns;
-	attr->ia_atime.tv_sec = hui->hui_atime;
-	attr->ia_atime.tv_nsec = hui->hui_atime_ns;
-
-	attr->ia_valid = ATTR_SIZE | ATTR_MODE | ATTR_FORCE |
-			 ATTR_UID | ATTR_GID |
-			 ATTR_MTIME | ATTR_MTIME_SET |
-			 ATTR_ATIME | ATTR_ATIME_SET;
-
-	mutex_lock(&inode->i_mutex);
-
-	rc = ll_setattr_raw(file->f_path.dentry, attr, true);
-	if (rc == -ENODATA)
-		rc = 0;
-
-	mutex_unlock(&inode->i_mutex);
-
-	kfree(attr);
-free_hss:
-	kfree(hss);
-	return rc;
-}
-
-static long
-ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	struct inode		*inode = file_inode(file);
-	struct ll_file_data	*fd = LUSTRE_FPRIVATE(file);
-	int			 flags, rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),cmd=%x\n", inode->i_ino,
-	       inode->i_generation, inode, cmd);
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1);
-
-	/* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
-	if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
-		return -ENOTTY;
-
-	switch (cmd) {
-	case LL_IOC_GETFLAGS:
-		/* Get the current value of the file flags */
-		return put_user(fd->fd_flags, (int *)arg);
-	case LL_IOC_SETFLAGS:
-	case LL_IOC_CLRFLAGS:
-		/* Set or clear specific file flags */
-		/* XXX This probably needs checks to ensure the flags are
-		 *     not abused, and to handle any flag side effects.
-		 */
-		if (get_user(flags, (int *) arg))
-			return -EFAULT;
-
-		if (cmd == LL_IOC_SETFLAGS) {
-			if ((flags & LL_FILE_IGNORE_LOCK) &&
-			    !(file->f_flags & O_DIRECT)) {
-				CERROR("%s: unable to disable locking on non-O_DIRECT file\n",
-				       current->comm);
-				return -EINVAL;
-			}
-
-			fd->fd_flags |= flags;
-		} else {
-			fd->fd_flags &= ~flags;
-		}
-		return 0;
-	case LL_IOC_LOV_SETSTRIPE:
-		return ll_lov_setstripe(inode, file, arg);
-	case LL_IOC_LOV_SETEA:
-		return ll_lov_setea(inode, file, arg);
-	case LL_IOC_LOV_SWAP_LAYOUTS: {
-		struct file *file2;
-		struct lustre_swap_layouts lsl;
-
-		if (copy_from_user(&lsl, (char *)arg,
-				       sizeof(struct lustre_swap_layouts)))
-			return -EFAULT;
-
-		if ((file->f_flags & O_ACCMODE) == 0) /* O_RDONLY */
-			return -EPERM;
-
-		file2 = fget(lsl.sl_fd);
-		if (file2 == NULL)
-			return -EBADF;
-
-		rc = -EPERM;
-		if ((file2->f_flags & O_ACCMODE) != 0) /* O_WRONLY or O_RDWR */
-			rc = ll_swap_layouts(file, file2, &lsl);
-		fput(file2);
-		return rc;
-	}
-	case LL_IOC_LOV_GETSTRIPE:
-		return ll_lov_getstripe(inode, arg);
-	case LL_IOC_RECREATE_OBJ:
-		return ll_lov_recreate_obj(inode, arg);
-	case LL_IOC_RECREATE_FID:
-		return ll_lov_recreate_fid(inode, arg);
-	case FSFILT_IOC_FIEMAP:
-		return ll_ioctl_fiemap(inode, arg);
-	case FSFILT_IOC_GETFLAGS:
-	case FSFILT_IOC_SETFLAGS:
-		return ll_iocontrol(inode, file, cmd, arg);
-	case FSFILT_IOC_GETVERSION_OLD:
-	case FSFILT_IOC_GETVERSION:
-		return put_user(inode->i_generation, (int *)arg);
-	case LL_IOC_GROUP_LOCK:
-		return ll_get_grouplock(inode, file, arg);
-	case LL_IOC_GROUP_UNLOCK:
-		return ll_put_grouplock(inode, file, arg);
-	case IOC_OBD_STATFS:
-		return ll_obd_statfs(inode, (void *)arg);
-
-	/* We need to special case any other ioctls we want to handle,
-	 * to send them to the MDS/OST as appropriate and to properly
-	 * network encode the arg field.
-	case FSFILT_IOC_SETVERSION_OLD:
-	case FSFILT_IOC_SETVERSION:
-	*/
-	case LL_IOC_FLUSHCTX:
-		return ll_flush_ctx(inode);
-	case LL_IOC_PATH2FID: {
-		if (copy_to_user((void *)arg, ll_inode2fid(inode),
-				 sizeof(struct lu_fid)))
-			return -EFAULT;
-
-		return 0;
-	}
-	case OBD_IOC_FID2PATH:
-		return ll_fid2path(inode, (void *)arg);
-	case LL_IOC_DATA_VERSION: {
-		struct ioc_data_version	idv;
-		int			rc;
-
-		if (copy_from_user(&idv, (char *)arg, sizeof(idv)))
-			return -EFAULT;
-
-		rc = ll_data_version(inode, &idv.idv_version,
-				!(idv.idv_flags & LL_DV_NOFLUSH));
-
-		if (rc == 0 && copy_to_user((char *) arg, &idv, sizeof(idv)))
-			return -EFAULT;
-
-		return rc;
-	}
-
-	case LL_IOC_GET_MDTIDX: {
-		int mdtidx;
-
-		mdtidx = ll_get_mdt_idx(inode);
-		if (mdtidx < 0)
-			return mdtidx;
-
-		if (put_user((int)mdtidx, (int *)arg))
-			return -EFAULT;
-
-		return 0;
-	}
-	case OBD_IOC_GETDTNAME:
-	case OBD_IOC_GETMDNAME:
-		return ll_get_obd_name(inode, cmd, arg);
-	case LL_IOC_HSM_STATE_GET: {
-		struct md_op_data	*op_data;
-		struct hsm_user_state	*hus;
-		int			 rc;
-
-		hus = kzalloc(sizeof(*hus), GFP_NOFS);
-		if (!hus)
-			return -ENOMEM;
-
-		op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-					     LUSTRE_OPC_ANY, hus);
-		if (IS_ERR(op_data)) {
-			kfree(hus);
-			return PTR_ERR(op_data);
-		}
-
-		rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data),
-				   op_data, NULL);
-
-		if (copy_to_user((void *)arg, hus, sizeof(*hus)))
-			rc = -EFAULT;
-
-		ll_finish_md_op_data(op_data);
-		kfree(hus);
-		return rc;
-	}
-	case LL_IOC_HSM_STATE_SET: {
-		struct hsm_state_set	*hss;
-		int			 rc;
-
-		hss = memdup_user((char *)arg, sizeof(*hss));
-		if (IS_ERR(hss))
-			return PTR_ERR(hss);
-
-		rc = ll_hsm_state_set(inode, hss);
-
-		kfree(hss);
-		return rc;
-	}
-	case LL_IOC_HSM_ACTION: {
-		struct md_op_data		*op_data;
-		struct hsm_current_action	*hca;
-		int				 rc;
-
-		hca = kzalloc(sizeof(*hca), GFP_NOFS);
-		if (!hca)
-			return -ENOMEM;
-
-		op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-					     LUSTRE_OPC_ANY, hca);
-		if (IS_ERR(op_data)) {
-			kfree(hca);
-			return PTR_ERR(op_data);
-		}
-
-		rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data),
-				   op_data, NULL);
-
-		if (copy_to_user((char *)arg, hca, sizeof(*hca)))
-			rc = -EFAULT;
-
-		ll_finish_md_op_data(op_data);
-		kfree(hca);
-		return rc;
-	}
-	case LL_IOC_SET_LEASE: {
-		struct ll_inode_info *lli = ll_i2info(inode);
-		struct obd_client_handle *och = NULL;
-		bool lease_broken;
-		fmode_t mode = 0;
-
-		switch (arg) {
-		case F_WRLCK:
-			if (!(file->f_mode & FMODE_WRITE))
-				return -EPERM;
-			mode = FMODE_WRITE;
-			break;
-		case F_RDLCK:
-			if (!(file->f_mode & FMODE_READ))
-				return -EPERM;
-			mode = FMODE_READ;
-			break;
-		case F_UNLCK:
-			mutex_lock(&lli->lli_och_mutex);
-			if (fd->fd_lease_och != NULL) {
-				och = fd->fd_lease_och;
-				fd->fd_lease_och = NULL;
-			}
-			mutex_unlock(&lli->lli_och_mutex);
-
-			if (och != NULL) {
-				mode = och->och_flags &
-				       (FMODE_READ|FMODE_WRITE);
-				rc = ll_lease_close(och, inode, &lease_broken);
-				if (rc == 0 && lease_broken)
-					mode = 0;
-			} else {
-				rc = -ENOLCK;
-			}
-
-			/* return the type of lease or error */
-			return rc < 0 ? rc : (int)mode;
-		default:
-			return -EINVAL;
-		}
-
-		CDEBUG(D_INODE, "Set lease with mode %d\n", mode);
-
-		/* apply for lease */
-		och = ll_lease_open(inode, file, mode, 0);
-		if (IS_ERR(och))
-			return PTR_ERR(och);
-
-		rc = 0;
-		mutex_lock(&lli->lli_och_mutex);
-		if (fd->fd_lease_och == NULL) {
-			fd->fd_lease_och = och;
-			och = NULL;
-		}
-		mutex_unlock(&lli->lli_och_mutex);
-		if (och != NULL) {
-			/* impossible now that only excl is supported for now */
-			ll_lease_close(och, inode, &lease_broken);
-			rc = -EBUSY;
-		}
-		return rc;
-	}
-	case LL_IOC_GET_LEASE: {
-		struct ll_inode_info *lli = ll_i2info(inode);
-		struct ldlm_lock *lock = NULL;
-
-		rc = 0;
-		mutex_lock(&lli->lli_och_mutex);
-		if (fd->fd_lease_och != NULL) {
-			struct obd_client_handle *och = fd->fd_lease_och;
-
-			lock = ldlm_handle2lock(&och->och_lease_handle);
-			if (lock != NULL) {
-				lock_res_and_lock(lock);
-				if (!ldlm_is_cancel(lock))
-					rc = och->och_flags &
-						(FMODE_READ | FMODE_WRITE);
-				unlock_res_and_lock(lock);
-				ldlm_lock_put(lock);
-			}
-		}
-		mutex_unlock(&lli->lli_och_mutex);
-		return rc;
-	}
-	case LL_IOC_HSM_IMPORT: {
-		struct hsm_user_import *hui;
-
-		hui = memdup_user((void *)arg, sizeof(*hui));
-		if (IS_ERR(hui))
-			return PTR_ERR(hui);
-
-		rc = ll_hsm_import(inode, file, hui);
-
-		kfree(hui);
-		return rc;
-	}
-	default: {
-		int err;
-
-		if (LLIOC_STOP ==
-		     ll_iocontrol_call(inode, file, cmd, arg, &err))
-			return err;
-
-		return obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL,
-				     (void *)arg);
-	}
-	}
-}
-
-
-static loff_t ll_file_seek(struct file *file, loff_t offset, int origin)
-{
-	struct inode *inode = file_inode(file);
-	loff_t retval, eof = 0;
-
-	retval = offset + ((origin == SEEK_END) ? i_size_read(inode) :
-			   (origin == SEEK_CUR) ? file->f_pos : 0);
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), to=%llu=%#llx(%d)\n",
-	       inode->i_ino, inode->i_generation, inode, retval, retval,
-	       origin);
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LLSEEK, 1);
-
-	if (origin == SEEK_END || origin == SEEK_HOLE || origin == SEEK_DATA) {
-		retval = ll_glimpse_size(inode);
-		if (retval != 0)
-			return retval;
-		eof = i_size_read(inode);
-	}
-
-	retval = generic_file_llseek_size(file, offset, origin,
-					  ll_file_maxbytes(inode), eof);
-	return retval;
-}
-
-static int ll_flush(struct file *file, fl_owner_t id)
-{
-	struct inode *inode = file_inode(file);
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-	int rc, err;
-
-	LASSERT(!S_ISDIR(inode->i_mode));
-
-	/* catch async errors that were recorded back when async writeback
-	 * failed for pages in this mapping. */
-	rc = lli->lli_async_rc;
-	lli->lli_async_rc = 0;
-	err = lov_read_and_clear_async_rc(lli->lli_clob);
-	if (rc == 0)
-		rc = err;
-
-	/* The application has been told write failure already.
-	 * Do not report failure again. */
-	if (fd->fd_write_failed)
-		return 0;
-	return rc ? -EIO : 0;
-}
-
-/**
- * Called to make sure a portion of file has been written out.
- * if @mode is not CL_FSYNC_LOCAL, it will send OST_SYNC RPCs to OST.
- *
- * Return how many pages have been written.
- */
-int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end,
-		       enum cl_fsync_mode mode, int ignore_layout)
-{
-	struct cl_env_nest nest;
-	struct lu_env *env;
-	struct cl_io *io;
-	struct obd_capa *capa = NULL;
-	struct cl_fsync_io *fio;
-	int result;
-
-	if (mode != CL_FSYNC_NONE && mode != CL_FSYNC_LOCAL &&
-	    mode != CL_FSYNC_DISCARD && mode != CL_FSYNC_ALL)
-		return -EINVAL;
-
-	env = cl_env_nested_get(&nest);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	capa = ll_osscapa_get(inode, CAPA_OPC_OSS_WRITE);
-
-	io = ccc_env_thread_io(env);
-	io->ci_obj = cl_i2info(inode)->lli_clob;
-	io->ci_ignore_layout = ignore_layout;
-
-	/* initialize parameters for sync */
-	fio = &io->u.ci_fsync;
-	fio->fi_capa = capa;
-	fio->fi_start = start;
-	fio->fi_end = end;
-	fio->fi_fid = ll_inode2fid(inode);
-	fio->fi_mode = mode;
-	fio->fi_nr_written = 0;
-
-	if (cl_io_init(env, io, CIT_FSYNC, io->ci_obj) == 0)
-		result = cl_io_loop(env, io);
-	else
-		result = io->ci_result;
-	if (result == 0)
-		result = fio->fi_nr_written;
-	cl_io_fini(env, io);
-	cl_env_nested_put(&nest, env);
-
-	capa_put(capa);
-
-	return result;
-}
-
-int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync)
-{
-	struct inode *inode = file_inode(file);
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ptlrpc_request *req;
-	struct obd_capa *oc;
-	int rc, err;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
-	       inode->i_generation, inode);
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FSYNC, 1);
-
-	rc = filemap_write_and_wait_range(inode->i_mapping, start, end);
-	mutex_lock(&inode->i_mutex);
-
-	/* catch async errors that were recorded back when async writeback
-	 * failed for pages in this mapping. */
-	if (!S_ISDIR(inode->i_mode)) {
-		err = lli->lli_async_rc;
-		lli->lli_async_rc = 0;
-		if (rc == 0)
-			rc = err;
-		err = lov_read_and_clear_async_rc(lli->lli_clob);
-		if (rc == 0)
-			rc = err;
-	}
-
-	oc = ll_mdscapa_get(inode);
-	err = md_sync(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
-		      &req);
-	capa_put(oc);
-	if (!rc)
-		rc = err;
-	if (!err)
-		ptlrpc_req_finished(req);
-
-	if (S_ISREG(inode->i_mode)) {
-		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-
-		err = cl_sync_file_range(inode, start, end, CL_FSYNC_ALL, 0);
-		if (rc == 0 && err < 0)
-			rc = err;
-		if (rc < 0)
-			fd->fd_write_failed = true;
-		else
-			fd->fd_write_failed = false;
-	}
-
-	mutex_unlock(&inode->i_mutex);
-	return rc;
-}
-
-static int
-ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock)
-{
-	struct inode *inode = file_inode(file);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ldlm_enqueue_info einfo = {
-		.ei_type	= LDLM_FLOCK,
-		.ei_cb_cp	= ldlm_flock_completion_ast,
-		.ei_cbdata	= file_lock,
-	};
-	struct md_op_data *op_data;
-	struct lustre_handle lockh = {0};
-	ldlm_policy_data_t flock = {{0}};
-	__u64 flags = 0;
-	int rc;
-	int rc2 = 0;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu file_lock=%p\n",
-	       inode->i_ino, file_lock);
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FLOCK, 1);
-
-	if (file_lock->fl_flags & FL_FLOCK)
-		LASSERT((cmd == F_SETLKW) || (cmd == F_SETLK));
-	else if (!(file_lock->fl_flags & FL_POSIX))
-		return -EINVAL;
-
-	flock.l_flock.owner = (unsigned long)file_lock->fl_owner;
-	flock.l_flock.pid = file_lock->fl_pid;
-	flock.l_flock.start = file_lock->fl_start;
-	flock.l_flock.end = file_lock->fl_end;
-
-	/* Somewhat ugly workaround for svc lockd.
-	 * lockd installs custom fl_lmops->lm_compare_owner that checks
-	 * for the fl_owner to be the same (which it always is on local node
-	 * I guess between lockd processes) and then compares pid.
-	 * As such we assign pid to the owner field to make it all work,
-	 * conflict with normal locks is unlikely since pid space and
-	 * pointer space for current->files are not intersecting */
-	if (file_lock->fl_lmops && file_lock->fl_lmops->lm_compare_owner)
-		flock.l_flock.owner = (unsigned long)file_lock->fl_pid;
-
-	switch (file_lock->fl_type) {
-	case F_RDLCK:
-		einfo.ei_mode = LCK_PR;
-		break;
-	case F_UNLCK:
-		/* An unlock request may or may not have any relation to
-		 * existing locks so we may not be able to pass a lock handle
-		 * via a normal ldlm_lock_cancel() request. The request may even
-		 * unlock a byte range in the middle of an existing lock. In
-		 * order to process an unlock request we need all of the same
-		 * information that is given with a normal read or write record
-		 * lock request. To avoid creating another ldlm unlock (cancel)
-		 * message we'll treat a LCK_NL flock request as an unlock. */
-		einfo.ei_mode = LCK_NL;
-		break;
-	case F_WRLCK:
-		einfo.ei_mode = LCK_PW;
-		break;
-	default:
-		CDEBUG(D_INFO, "Unknown fcntl lock type: %d\n",
-			file_lock->fl_type);
-		return -ENOTSUPP;
-	}
-
-	switch (cmd) {
-	case F_SETLKW:
-#ifdef F_SETLKW64
-	case F_SETLKW64:
-#endif
-		flags = 0;
-		break;
-	case F_SETLK:
-#ifdef F_SETLK64
-	case F_SETLK64:
-#endif
-		flags = LDLM_FL_BLOCK_NOWAIT;
-		break;
-	case F_GETLK:
-#ifdef F_GETLK64
-	case F_GETLK64:
-#endif
-		flags = LDLM_FL_TEST_LOCK;
-		/* Save the old mode so that if the mode in the lock changes we
-		 * can decrement the appropriate reader or writer refcount. */
-		file_lock->fl_type = einfo.ei_mode;
-		break;
-	default:
-		CERROR("unknown fcntl lock command: %d\n", cmd);
-		return -EINVAL;
-	}
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	CDEBUG(D_DLMTRACE, "inode=%lu, pid=%u, flags=%#llx, mode=%u, start=%llu, end=%llu\n",
-	       inode->i_ino, flock.l_flock.pid, flags, einfo.ei_mode,
-	       flock.l_flock.start, flock.l_flock.end);
-
-	rc = md_enqueue(sbi->ll_md_exp, &einfo, NULL,
-			op_data, &lockh, &flock, 0, NULL /* req */, flags);
-
-	if ((file_lock->fl_flags & FL_FLOCK) &&
-	    (rc == 0 || file_lock->fl_type == F_UNLCK))
-		rc2  = flock_lock_file_wait(file, file_lock);
-	if ((file_lock->fl_flags & FL_POSIX) &&
-	    (rc == 0 || file_lock->fl_type == F_UNLCK) &&
-	    !(flags & LDLM_FL_TEST_LOCK))
-		rc2  = posix_lock_file_wait(file, file_lock);
-
-	if (rc2 && file_lock->fl_type != F_UNLCK) {
-		einfo.ei_mode = LCK_NL;
-		md_enqueue(sbi->ll_md_exp, &einfo, NULL,
-			op_data, &lockh, &flock, 0, NULL /* req */, flags);
-		rc = rc2;
-	}
-
-	ll_finish_md_op_data(op_data);
-
-	return rc;
-}
-
-static int
-ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock)
-{
-	return -ENOSYS;
-}
-
-/**
- * test if some locks matching bits and l_req_mode are acquired
- * - bits can be in different locks
- * - if found clear the common lock bits in *bits
- * - the bits not found, are kept in *bits
- * \param inode [IN]
- * \param bits [IN] searched lock bits [IN]
- * \param l_req_mode [IN] searched lock mode
- * \retval boolean, true iff all bits are found
- */
-int ll_have_md_lock(struct inode *inode, __u64 *bits,  ldlm_mode_t l_req_mode)
-{
-	struct lustre_handle lockh;
-	ldlm_policy_data_t policy;
-	ldlm_mode_t mode = (l_req_mode == LCK_MINMODE) ?
-				(LCK_CR|LCK_CW|LCK_PR|LCK_PW) : l_req_mode;
-	struct lu_fid *fid;
-	__u64 flags;
-	int i;
-
-	if (!inode)
-		return 0;
-
-	fid = &ll_i2info(inode)->lli_fid;
-	CDEBUG(D_INFO, "trying to match res "DFID" mode %s\n", PFID(fid),
-	       ldlm_lockname[mode]);
-
-	flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK;
-	for (i = 0; i <= MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) {
-		policy.l_inodebits.bits = *bits & (1 << i);
-		if (policy.l_inodebits.bits == 0)
-			continue;
-
-		if (md_lock_match(ll_i2mdexp(inode), flags, fid, LDLM_IBITS,
-				  &policy, mode, &lockh)) {
-			struct ldlm_lock *lock;
-
-			lock = ldlm_handle2lock(&lockh);
-			if (lock) {
-				*bits &=
-				      ~(lock->l_policy_data.l_inodebits.bits);
-				LDLM_LOCK_PUT(lock);
-			} else {
-				*bits &= ~policy.l_inodebits.bits;
-			}
-		}
-	}
-	return *bits == 0;
-}
-
-ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
-			    struct lustre_handle *lockh, __u64 flags,
-			    ldlm_mode_t mode)
-{
-	ldlm_policy_data_t policy = { .l_inodebits = {bits} };
-	struct lu_fid *fid;
-	ldlm_mode_t rc;
-
-	fid = &ll_i2info(inode)->lli_fid;
-	CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid));
-
-	rc = md_lock_match(ll_i2mdexp(inode), LDLM_FL_BLOCK_GRANTED|flags,
-			   fid, LDLM_IBITS, &policy, mode, lockh);
-
-	return rc;
-}
-
-static int ll_inode_revalidate_fini(struct inode *inode, int rc)
-{
-	/* Already unlinked. Just update nlink and return success */
-	if (rc == -ENOENT) {
-		clear_nlink(inode);
-		/* This path cannot be hit for regular files unless in
-		 * case of obscure races, so no need to validate size.
-		 */
-		if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
-			return 0;
-	} else if (rc != 0) {
-		CDEBUG_LIMIT((rc == -EACCES || rc == -EIDRM) ? D_INFO : D_ERROR,
-			     "%s: revalidate FID "DFID" error: rc = %d\n",
-			     ll_get_fsname(inode->i_sb, NULL, 0),
-			     PFID(ll_inode2fid(inode)), rc);
-	}
-
-	return rc;
-}
-
-static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
-{
-	struct inode *inode = d_inode(dentry);
-	struct ptlrpc_request *req = NULL;
-	struct obd_export *exp;
-	int rc = 0;
-
-	LASSERT(inode != NULL);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),name=%pd\n",
-	       inode->i_ino, inode->i_generation, inode, dentry);
-
-	exp = ll_i2mdexp(inode);
-
-	/* XXX: Enable OBD_CONNECT_ATTRFID to reduce unnecessary getattr RPC.
-	 *      But under CMD case, it caused some lock issues, should be fixed
-	 *      with new CMD ibits lock. See bug 12718 */
-	if (exp_connect_flags(exp) & OBD_CONNECT_ATTRFID) {
-		struct lookup_intent oit = { .it_op = IT_GETATTR };
-		struct md_op_data *op_data;
-
-		if (ibits == MDS_INODELOCK_LOOKUP)
-			oit.it_op = IT_LOOKUP;
-
-		/* Call getattr by fid, so do not provide name at all. */
-		op_data = ll_prep_md_op_data(NULL, inode,
-					     inode, NULL, 0, 0,
-					     LUSTRE_OPC_ANY, NULL);
-		if (IS_ERR(op_data))
-			return PTR_ERR(op_data);
-
-		oit.it_create_mode |= M_CHECK_STALE;
-		rc = md_intent_lock(exp, op_data, NULL, 0,
-				    /* we are not interested in name
-				       based lookup */
-				    &oit, 0, &req,
-				    ll_md_blocking_ast, 0);
-		ll_finish_md_op_data(op_data);
-		oit.it_create_mode &= ~M_CHECK_STALE;
-		if (rc < 0) {
-			rc = ll_inode_revalidate_fini(inode, rc);
-			goto out;
-		}
-
-		rc = ll_revalidate_it_finish(req, &oit, inode);
-		if (rc != 0) {
-			ll_intent_release(&oit);
-			goto out;
-		}
-
-		/* Unlinked? Unhash dentry, so it is not picked up later by
-		   do_lookup() -> ll_revalidate_it(). We cannot use d_drop
-		   here to preserve get_cwd functionality on 2.6.
-		   Bug 10503 */
-		if (!d_inode(dentry)->i_nlink)
-			d_lustre_invalidate(dentry, 0);
-
-		ll_lookup_finish_locks(&oit, inode);
-	} else if (!ll_have_md_lock(d_inode(dentry), &ibits, LCK_MINMODE)) {
-		struct ll_sb_info *sbi = ll_i2sbi(d_inode(dentry));
-		u64 valid = OBD_MD_FLGETATTR;
-		struct md_op_data *op_data;
-		int ealen = 0;
-
-		if (S_ISREG(inode->i_mode)) {
-			rc = ll_get_default_mdsize(sbi, &ealen);
-			if (rc)
-				return rc;
-			valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE;
-		}
-
-		op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
-					     0, ealen, LUSTRE_OPC_ANY,
-					     NULL);
-		if (IS_ERR(op_data))
-			return PTR_ERR(op_data);
-
-		op_data->op_valid = valid;
-		/* Once OBD_CONNECT_ATTRFID is not supported, we can't find one
-		 * capa for this inode. Because we only keep capas of dirs
-		 * fresh. */
-		rc = md_getattr(sbi->ll_md_exp, op_data, &req);
-		ll_finish_md_op_data(op_data);
-		if (rc) {
-			rc = ll_inode_revalidate_fini(inode, rc);
-			return rc;
-		}
-
-		rc = ll_prep_inode(&inode, req, NULL, NULL);
-	}
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
-{
-	struct inode *inode = d_inode(dentry);
-	int rc;
-
-	rc = __ll_inode_revalidate(dentry, ibits);
-	if (rc != 0)
-		return rc;
-
-	/* if object isn't regular file, don't validate size */
-	if (!S_ISREG(inode->i_mode)) {
-		LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_lvb.lvb_atime;
-		LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_lvb.lvb_mtime;
-		LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_lvb.lvb_ctime;
-	} else {
-		/* In case of restore, the MDT has the right size and has
-		 * already send it back without granting the layout lock,
-		 * inode is up-to-date so glimpse is useless.
-		 * Also to glimpse we need the layout, in case of a running
-		 * restore the MDT holds the layout lock so the glimpse will
-		 * block up to the end of restore (getattr will block)
-		 */
-		if (!(ll_i2info(inode)->lli_flags & LLIF_FILE_RESTORING))
-			rc = ll_glimpse_size(inode);
-	}
-	return rc;
-}
-
-int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
-{
-	struct inode *inode = d_inode(de);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ll_inode_info *lli = ll_i2info(inode);
-	int res;
-
-	res = ll_inode_revalidate(de, MDS_INODELOCK_UPDATE |
-				      MDS_INODELOCK_LOOKUP);
-	ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1);
-
-	if (res)
-		return res;
-
-	stat->dev = inode->i_sb->s_dev;
-	if (ll_need_32bit_api(sbi))
-		stat->ino = cl_fid_build_ino(&lli->lli_fid, 1);
-	else
-		stat->ino = inode->i_ino;
-	stat->mode = inode->i_mode;
-	stat->nlink = inode->i_nlink;
-	stat->uid = inode->i_uid;
-	stat->gid = inode->i_gid;
-	stat->rdev = inode->i_rdev;
-	stat->atime = inode->i_atime;
-	stat->mtime = inode->i_mtime;
-	stat->ctime = inode->i_ctime;
-	stat->blksize = 1 << inode->i_blkbits;
-
-	stat->size = i_size_read(inode);
-	stat->blocks = inode->i_blocks;
-
-	return 0;
-}
-
-static int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
-		     __u64 start, __u64 len)
-{
-	int rc;
-	size_t num_bytes;
-	struct ll_user_fiemap *fiemap;
-	unsigned int extent_count = fieinfo->fi_extents_max;
-
-	num_bytes = sizeof(*fiemap) + (extent_count *
-				       sizeof(struct ll_fiemap_extent));
-	fiemap = libcfs_kvzalloc(num_bytes, GFP_NOFS);
-
-	if (fiemap == NULL)
-		return -ENOMEM;
-
-	fiemap->fm_flags = fieinfo->fi_flags;
-	fiemap->fm_extent_count = fieinfo->fi_extents_max;
-	fiemap->fm_start = start;
-	fiemap->fm_length = len;
-	if (extent_count > 0)
-		memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start,
-		       sizeof(struct ll_fiemap_extent));
-
-	rc = ll_do_fiemap(inode, fiemap, num_bytes);
-
-	fieinfo->fi_flags = fiemap->fm_flags;
-	fieinfo->fi_extents_mapped = fiemap->fm_mapped_extents;
-	if (extent_count > 0)
-		memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0],
-		       fiemap->fm_mapped_extents *
-		       sizeof(struct ll_fiemap_extent));
-
-	kvfree(fiemap);
-	return rc;
-}
-
-struct posix_acl *ll_get_acl(struct inode *inode, int type)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct posix_acl *acl = NULL;
-
-	spin_lock(&lli->lli_lock);
-	/* VFS' acl_permission_check->check_acl will release the refcount */
-	acl = posix_acl_dup(lli->lli_posix_acl);
-	spin_unlock(&lli->lli_lock);
-
-	return acl;
-}
-
-
-int ll_inode_permission(struct inode *inode, int mask)
-{
-	int rc = 0;
-
-#ifdef MAY_NOT_BLOCK
-	if (mask & MAY_NOT_BLOCK)
-		return -ECHILD;
-#endif
-
-       /* as root inode are NOT getting validated in lookup operation,
-	* need to do it before permission check. */
-
-	if (is_root_inode(inode)) {
-		rc = __ll_inode_revalidate(inode->i_sb->s_root,
-					   MDS_INODELOCK_LOOKUP);
-		if (rc)
-			return rc;
-	}
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), inode mode %x mask %o\n",
-	       inode->i_ino, inode->i_generation, inode, inode->i_mode, mask);
-
-	if (ll_i2sbi(inode)->ll_flags & LL_SBI_RMT_CLIENT)
-		return lustre_check_remote_perm(inode, mask);
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_INODE_PERM, 1);
-	rc = generic_permission(inode, mask);
-
-	return rc;
-}
-
-/* -o localflock - only provides locally consistent flock locks */
-struct file_operations ll_file_operations = {
-	.read_iter = ll_file_read_iter,
-	.write_iter = ll_file_write_iter,
-	.unlocked_ioctl = ll_file_ioctl,
-	.open	   = ll_file_open,
-	.release	= ll_file_release,
-	.mmap	   = ll_file_mmap,
-	.llseek	 = ll_file_seek,
-	.splice_read    = ll_file_splice_read,
-	.fsync	  = ll_fsync,
-	.flush	  = ll_flush
-};
-
-struct file_operations ll_file_operations_flock = {
-	.read_iter    = ll_file_read_iter,
-	.write_iter   = ll_file_write_iter,
-	.unlocked_ioctl = ll_file_ioctl,
-	.open	   = ll_file_open,
-	.release	= ll_file_release,
-	.mmap	   = ll_file_mmap,
-	.llseek	 = ll_file_seek,
-	.splice_read    = ll_file_splice_read,
-	.fsync	  = ll_fsync,
-	.flush	  = ll_flush,
-	.flock	  = ll_file_flock,
-	.lock	   = ll_file_flock
-};
-
-/* These are for -o noflock - to return ENOSYS on flock calls */
-struct file_operations ll_file_operations_noflock = {
-	.read_iter    = ll_file_read_iter,
-	.write_iter   = ll_file_write_iter,
-	.unlocked_ioctl = ll_file_ioctl,
-	.open	   = ll_file_open,
-	.release	= ll_file_release,
-	.mmap	   = ll_file_mmap,
-	.llseek	 = ll_file_seek,
-	.splice_read    = ll_file_splice_read,
-	.fsync	  = ll_fsync,
-	.flush	  = ll_flush,
-	.flock	  = ll_file_noflock,
-	.lock	   = ll_file_noflock
-};
-
-struct inode_operations ll_file_inode_operations = {
-	.setattr	= ll_setattr,
-	.getattr	= ll_getattr,
-	.permission	= ll_inode_permission,
-	.setxattr	= ll_setxattr,
-	.getxattr	= ll_getxattr,
-	.listxattr	= ll_listxattr,
-	.removexattr	= ll_removexattr,
-	.fiemap		= ll_fiemap,
-	.get_acl	= ll_get_acl,
-};
-
-/* dynamic ioctl number support routines */
-static struct llioc_ctl_data {
-	struct rw_semaphore	ioc_sem;
-	struct list_head	      ioc_head;
-} llioc = {
-	__RWSEM_INITIALIZER(llioc.ioc_sem),
-	LIST_HEAD_INIT(llioc.ioc_head)
-};
-
-
-struct llioc_data {
-	struct list_head	      iocd_list;
-	unsigned int	    iocd_size;
-	llioc_callback_t	iocd_cb;
-	unsigned int	    iocd_count;
-	unsigned int	    iocd_cmd[0];
-};
-
-void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd)
-{
-	unsigned int size;
-	struct llioc_data *in_data = NULL;
-
-	if (cb == NULL || cmd == NULL ||
-	    count > LLIOC_MAX_CMD || count < 0)
-		return NULL;
-
-	size = sizeof(*in_data) + count * sizeof(unsigned int);
-	in_data = kzalloc(size, GFP_NOFS);
-	if (!in_data)
-		return NULL;
-
-	memset(in_data, 0, sizeof(*in_data));
-	in_data->iocd_size = size;
-	in_data->iocd_cb = cb;
-	in_data->iocd_count = count;
-	memcpy(in_data->iocd_cmd, cmd, sizeof(unsigned int) * count);
-
-	down_write(&llioc.ioc_sem);
-	list_add_tail(&in_data->iocd_list, &llioc.ioc_head);
-	up_write(&llioc.ioc_sem);
-
-	return in_data;
-}
-EXPORT_SYMBOL(ll_iocontrol_register);
-
-void ll_iocontrol_unregister(void *magic)
-{
-	struct llioc_data *tmp;
-
-	if (magic == NULL)
-		return;
-
-	down_write(&llioc.ioc_sem);
-	list_for_each_entry(tmp, &llioc.ioc_head, iocd_list) {
-		if (tmp == magic) {
-			list_del(&tmp->iocd_list);
-			up_write(&llioc.ioc_sem);
-
-			kfree(tmp);
-			return;
-		}
-	}
-	up_write(&llioc.ioc_sem);
-
-	CWARN("didn't find iocontrol register block with magic: %p\n", magic);
-}
-EXPORT_SYMBOL(ll_iocontrol_unregister);
-
-static enum llioc_iter
-ll_iocontrol_call(struct inode *inode, struct file *file,
-		  unsigned int cmd, unsigned long arg, int *rcp)
-{
-	enum llioc_iter ret = LLIOC_CONT;
-	struct llioc_data *data;
-	int rc = -EINVAL, i;
-
-	down_read(&llioc.ioc_sem);
-	list_for_each_entry(data, &llioc.ioc_head, iocd_list) {
-		for (i = 0; i < data->iocd_count; i++) {
-			if (cmd != data->iocd_cmd[i])
-				continue;
-
-			ret = data->iocd_cb(inode, file, cmd, arg, data, &rc);
-			break;
-		}
-
-		if (ret == LLIOC_STOP)
-			break;
-	}
-	up_read(&llioc.ioc_sem);
-
-	if (rcp)
-		*rcp = rc;
-	return ret;
-}
-
-int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct cl_env_nest nest;
-	struct lu_env *env;
-	int result;
-
-	if (lli->lli_clob == NULL)
-		return 0;
-
-	env = cl_env_nested_get(&nest);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	result = cl_conf_set(env, lli->lli_clob, conf);
-	cl_env_nested_put(&nest, env);
-
-	if (conf->coc_opc == OBJECT_CONF_SET) {
-		struct ldlm_lock *lock = conf->coc_lock;
-
-		LASSERT(lock != NULL);
-		LASSERT(ldlm_has_layout(lock));
-		if (result == 0) {
-			/* it can only be allowed to match after layout is
-			 * applied to inode otherwise false layout would be
-			 * seen. Applying layout should happen before dropping
-			 * the intent lock. */
-			ldlm_lock_allow_match(lock);
-		}
-	}
-	return result;
-}
-
-/* Fetch layout from MDT with getxattr request, if it's not ready yet */
-static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock)
-
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct obd_capa *oc;
-	struct ptlrpc_request *req;
-	struct mdt_body *body;
-	void *lvbdata;
-	void *lmm;
-	int lmmsize;
-	int rc;
-
-	CDEBUG(D_INODE, DFID" LVB_READY=%d l_lvb_data=%p l_lvb_len=%d\n",
-	       PFID(ll_inode2fid(inode)), !!(lock->l_flags & LDLM_FL_LVB_READY),
-	       lock->l_lvb_data, lock->l_lvb_len);
-
-	if ((lock->l_lvb_data != NULL) && (lock->l_flags & LDLM_FL_LVB_READY))
-		return 0;
-
-	/* if layout lock was granted right away, the layout is returned
-	 * within DLM_LVB of dlm reply; otherwise if the lock was ever
-	 * blocked and then granted via completion ast, we have to fetch
-	 * layout here. Please note that we can't use the LVB buffer in
-	 * completion AST because it doesn't have a large enough buffer */
-	oc = ll_mdscapa_get(inode);
-	rc = ll_get_default_mdsize(sbi, &lmmsize);
-	if (rc == 0)
-		rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
-				OBD_MD_FLXATTR, XATTR_NAME_LOV, NULL, 0,
-				lmmsize, 0, &req);
-	capa_put(oc);
-	if (rc < 0)
-		return rc;
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	lmmsize = body->eadatasize;
-	if (lmmsize == 0) /* empty layout */ {
-		rc = 0;
-		goto out;
-	}
-
-	lmm = req_capsule_server_sized_get(&req->rq_pill, &RMF_EADATA, lmmsize);
-	if (lmm == NULL) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	lvbdata = libcfs_kvzalloc(lmmsize, GFP_NOFS);
-	if (lvbdata == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	memcpy(lvbdata, lmm, lmmsize);
-	lock_res_and_lock(lock);
-	if (lock->l_lvb_data != NULL)
-		kvfree(lock->l_lvb_data);
-
-	lock->l_lvb_data = lvbdata;
-	lock->l_lvb_len = lmmsize;
-	unlock_res_and_lock(lock);
-
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-/**
- * Apply the layout to the inode. Layout lock is held and will be released
- * in this function.
- */
-static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
-				struct inode *inode, __u32 *gen, bool reconf)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ll_sb_info    *sbi = ll_i2sbi(inode);
-	struct ldlm_lock *lock;
-	struct lustre_md md = { NULL };
-	struct cl_object_conf conf;
-	int rc = 0;
-	bool lvb_ready;
-	bool wait_layout = false;
-
-	LASSERT(lustre_handle_is_used(lockh));
-
-	lock = ldlm_handle2lock(lockh);
-	LASSERT(lock != NULL);
-	LASSERT(ldlm_has_layout(lock));
-
-	LDLM_DEBUG(lock, "File %p/"DFID" being reconfigured: %d.\n",
-		   inode, PFID(&lli->lli_fid), reconf);
-
-	/* in case this is a caching lock and reinstate with new inode */
-	md_set_lock_data(sbi->ll_md_exp, &lockh->cookie, inode, NULL);
-
-	lock_res_and_lock(lock);
-	lvb_ready = !!(lock->l_flags & LDLM_FL_LVB_READY);
-	unlock_res_and_lock(lock);
-	/* checking lvb_ready is racy but this is okay. The worst case is
-	 * that multi processes may configure the file on the same time. */
-	if (lvb_ready || !reconf) {
-		rc = -ENODATA;
-		if (lvb_ready) {
-			/* layout_gen must be valid if layout lock is not
-			 * cancelled and stripe has already set */
-			*gen = ll_layout_version_get(lli);
-			rc = 0;
-		}
-		goto out;
-	}
-
-	rc = ll_layout_fetch(inode, lock);
-	if (rc < 0)
-		goto out;
-
-	/* for layout lock, lmm is returned in lock's lvb.
-	 * lvb_data is immutable if the lock is held so it's safe to access it
-	 * without res lock. See the description in ldlm_lock_decref_internal()
-	 * for the condition to free lvb_data of layout lock */
-	if (lock->l_lvb_data != NULL) {
-		rc = obd_unpackmd(sbi->ll_dt_exp, &md.lsm,
-				  lock->l_lvb_data, lock->l_lvb_len);
-		if (rc >= 0) {
-			*gen = LL_LAYOUT_GEN_EMPTY;
-			if (md.lsm != NULL)
-				*gen = md.lsm->lsm_layout_gen;
-			rc = 0;
-		} else {
-			CERROR("%s: file "DFID" unpackmd error: %d\n",
-				ll_get_fsname(inode->i_sb, NULL, 0),
-				PFID(&lli->lli_fid), rc);
-		}
-	}
-	if (rc < 0)
-		goto out;
-
-	/* set layout to file. Unlikely this will fail as old layout was
-	 * surely eliminated */
-	memset(&conf, 0, sizeof(conf));
-	conf.coc_opc = OBJECT_CONF_SET;
-	conf.coc_inode = inode;
-	conf.coc_lock = lock;
-	conf.u.coc_md = &md;
-	rc = ll_layout_conf(inode, &conf);
-
-	if (md.lsm != NULL)
-		obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
-
-	/* refresh layout failed, need to wait */
-	wait_layout = rc == -EBUSY;
-
-out:
-	LDLM_LOCK_PUT(lock);
-	ldlm_lock_decref(lockh, mode);
-
-	/* wait for IO to complete if it's still being used. */
-	if (wait_layout) {
-		CDEBUG(D_INODE, "%s: %p/"DFID" wait for layout reconf.\n",
-			ll_get_fsname(inode->i_sb, NULL, 0),
-			inode, PFID(&lli->lli_fid));
-
-		memset(&conf, 0, sizeof(conf));
-		conf.coc_opc = OBJECT_CONF_WAIT;
-		conf.coc_inode = inode;
-		rc = ll_layout_conf(inode, &conf);
-		if (rc == 0)
-			rc = -EAGAIN;
-
-		CDEBUG(D_INODE, "file: "DFID" waiting layout return: %d.\n",
-			PFID(&lli->lli_fid), rc);
-	}
-	return rc;
-}
-
-/**
- * This function checks if there exists a LAYOUT lock on the client side,
- * or enqueues it if it doesn't have one in cache.
- *
- * This function will not hold layout lock so it may be revoked any time after
- * this function returns. Any operations depend on layout should be redone
- * in that case.
- *
- * This function should be called before lov_io_init() to get an uptodate
- * layout version, the caller should save the version number and after IO
- * is finished, this function should be called again to verify that layout
- * is not changed during IO time.
- */
-int ll_layout_refresh(struct inode *inode, __u32 *gen)
-{
-	struct ll_inode_info  *lli = ll_i2info(inode);
-	struct ll_sb_info     *sbi = ll_i2sbi(inode);
-	struct md_op_data     *op_data;
-	struct lookup_intent   it;
-	struct lustre_handle   lockh;
-	ldlm_mode_t	       mode;
-	struct ldlm_enqueue_info einfo = {
-		.ei_type = LDLM_IBITS,
-		.ei_mode = LCK_CR,
-		.ei_cb_bl = ll_md_blocking_ast,
-		.ei_cb_cp = ldlm_completion_ast,
-	};
-	int rc;
-
-	*gen = ll_layout_version_get(lli);
-	if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK) || *gen != LL_LAYOUT_GEN_NONE)
-		return 0;
-
-	/* sanity checks */
-	LASSERT(fid_is_sane(ll_inode2fid(inode)));
-	LASSERT(S_ISREG(inode->i_mode));
-
-	/* take layout lock mutex to enqueue layout lock exclusively. */
-	mutex_lock(&lli->lli_layout_mutex);
-
-again:
-	/* mostly layout lock is caching on the local side, so try to match
-	 * it before grabbing layout lock mutex. */
-	mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh, 0,
-			       LCK_CR | LCK_CW | LCK_PR | LCK_PW);
-	if (mode != 0) { /* hit cached lock */
-		rc = ll_layout_lock_set(&lockh, mode, inode, gen, true);
-		if (rc == -EAGAIN)
-			goto again;
-
-		mutex_unlock(&lli->lli_layout_mutex);
-		return rc;
-	}
-
-	op_data = ll_prep_md_op_data(NULL, inode, inode, NULL,
-			0, 0, LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data)) {
-		mutex_unlock(&lli->lli_layout_mutex);
-		return PTR_ERR(op_data);
-	}
-
-	/* have to enqueue one */
-	memset(&it, 0, sizeof(it));
-	it.it_op = IT_LAYOUT;
-	lockh.cookie = 0ULL;
-
-	LDLM_DEBUG_NOLOCK("%s: requeue layout lock for file %p/"DFID".\n",
-			ll_get_fsname(inode->i_sb, NULL, 0), inode,
-			PFID(&lli->lli_fid));
-
-	rc = md_enqueue(sbi->ll_md_exp, &einfo, &it, op_data, &lockh,
-			NULL, 0, NULL, 0);
-	if (it.d.lustre.it_data != NULL)
-		ptlrpc_req_finished(it.d.lustre.it_data);
-	it.d.lustre.it_data = NULL;
-
-	ll_finish_md_op_data(op_data);
-
-	mode = it.d.lustre.it_lock_mode;
-	it.d.lustre.it_lock_mode = 0;
-	ll_intent_drop_lock(&it);
-
-	if (rc == 0) {
-		/* set lock data in case this is a new lock */
-		ll_set_lock_data(sbi->ll_md_exp, inode, &it, NULL);
-		rc = ll_layout_lock_set(&lockh, mode, inode, gen, true);
-		if (rc == -EAGAIN)
-			goto again;
-	}
-	mutex_unlock(&lli->lli_layout_mutex);
-
-	return rc;
-}
-
-/**
- *  This function send a restore request to the MDT
- */
-int ll_layout_restore(struct inode *inode)
-{
-	struct hsm_user_request	*hur;
-	int			 len, rc;
-
-	len = sizeof(struct hsm_user_request) +
-	      sizeof(struct hsm_user_item);
-	hur = kzalloc(len, GFP_NOFS);
-	if (!hur)
-		return -ENOMEM;
-
-	hur->hur_request.hr_action = HUA_RESTORE;
-	hur->hur_request.hr_archive_id = 0;
-	hur->hur_request.hr_flags = 0;
-	memcpy(&hur->hur_user_item[0].hui_fid, &ll_i2info(inode)->lli_fid,
-	       sizeof(hur->hur_user_item[0].hui_fid));
-	hur->hur_user_item[0].hui_extent.length = -1;
-	hur->hur_request.hr_itemcount = 1;
-	rc = obd_iocontrol(LL_IOC_HSM_REQUEST, cl_i2sbi(inode)->ll_md_exp,
-			   len, hur, NULL);
-	kfree(hur);
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/llite/llite_capa.c b/drivers/staging/lustre/lustre/llite/llite_capa.c
deleted file mode 100644
index 24590ae36090..000000000000
--- a/drivers/staging/lustre/lustre/llite/llite_capa.c
+++ /dev/null
@@ -1,661 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/llite_capa.c
- *
- * Author: Lai Siyao <lsy@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include <linux/fs.h>
-#include <linux/uaccess.h>
-#include <linux/file.h>
-#include <linux/kmod.h>
-
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-
-/* for obd_capa.c_list, client capa might stay in three places:
- * 1. ll_capa_list.
- * 2. ll_idle_capas.
- * 3. stand alone: just allocated.
- */
-
-/* capas for oss writeback and those failed to renew */
-static LIST_HEAD(ll_idle_capas);
-static struct ptlrpc_thread ll_capa_thread;
-static struct list_head *ll_capa_list = &capa_list[CAPA_SITE_CLIENT];
-
-/* llite capa renewal timer */
-struct timer_list ll_capa_timer;
-/* for debug: indicate whether capa on llite is enabled or not */
-static atomic_t ll_capa_debug = ATOMIC_INIT(0);
-static unsigned long long ll_capa_renewed;
-static unsigned long long ll_capa_renewal_noent;
-static unsigned long long ll_capa_renewal_failed;
-static unsigned long long ll_capa_renewal_retries;
-
-static int ll_update_capa(struct obd_capa *ocapa, struct lustre_capa *capa);
-
-static inline void update_capa_timer(struct obd_capa *ocapa,
-				     unsigned long expiry)
-{
-	if (time_before(expiry, ll_capa_timer.expires) ||
-	    !timer_pending(&ll_capa_timer)) {
-		mod_timer(&ll_capa_timer, expiry);
-		DEBUG_CAPA(D_SEC, &ocapa->c_capa,
-			   "ll_capa_timer update: %lu/%lu by", expiry, jiffies);
-	}
-}
-
-static inline unsigned long capa_renewal_time(struct obd_capa *ocapa)
-{
-	return cfs_time_sub(ocapa->c_expiry,
-			    cfs_time_seconds(ocapa->c_capa.lc_timeout) / 2);
-}
-
-static inline int capa_is_to_expire(struct obd_capa *ocapa)
-{
-	return time_before_eq(capa_renewal_time(ocapa), cfs_time_current());
-}
-
-static inline int have_expired_capa(void)
-{
-	struct obd_capa *ocapa = NULL;
-	int expired = 0;
-
-	/* if ll_capa_list has client capa to expire or ll_idle_capas has
-	 * expired capa, return 1.
-	 */
-	spin_lock(&capa_lock);
-	if (!list_empty(ll_capa_list)) {
-		ocapa = list_entry(ll_capa_list->next, struct obd_capa,
-				   c_list);
-		expired = capa_is_to_expire(ocapa);
-		if (!expired)
-			update_capa_timer(ocapa, capa_renewal_time(ocapa));
-	} else if (!list_empty(&ll_idle_capas)) {
-		ocapa = list_entry(ll_idle_capas.next, struct obd_capa,
-				   c_list);
-		expired = capa_is_expired(ocapa);
-		if (!expired)
-			update_capa_timer(ocapa, ocapa->c_expiry);
-	}
-	spin_unlock(&capa_lock);
-
-	if (expired)
-		DEBUG_CAPA(D_SEC, &ocapa->c_capa, "expired");
-	return expired;
-}
-
-static void sort_add_capa(struct obd_capa *ocapa, struct list_head *head)
-{
-	struct obd_capa *tmp;
-	struct list_head *before = NULL;
-
-	/* TODO: client capa is sorted by expiry, this could be optimized */
-	list_for_each_entry_reverse(tmp, head, c_list) {
-		if (cfs_time_aftereq(ocapa->c_expiry, tmp->c_expiry)) {
-			before = &tmp->c_list;
-			break;
-		}
-	}
-
-	LASSERT(&ocapa->c_list != before);
-	list_add(&ocapa->c_list, before ?: head);
-}
-
-static inline int obd_capa_open_count(struct obd_capa *oc)
-{
-	struct ll_inode_info *lli = ll_i2info(oc->u.cli.inode);
-
-	return atomic_read(&lli->lli_open_count);
-}
-
-static void ll_delete_capa(struct obd_capa *ocapa)
-{
-	struct ll_inode_info *lli = ll_i2info(ocapa->u.cli.inode);
-
-	if (capa_for_mds(&ocapa->c_capa)) {
-		LASSERT(lli->lli_mds_capa == ocapa);
-		lli->lli_mds_capa = NULL;
-	} else if (capa_for_oss(&ocapa->c_capa)) {
-		list_del_init(&ocapa->u.cli.lli_list);
-	}
-
-	DEBUG_CAPA(D_SEC, &ocapa->c_capa, "free client");
-	list_del_init(&ocapa->c_list);
-	capa_count[CAPA_SITE_CLIENT]--;
-	/* release the ref when alloc */
-	capa_put(ocapa);
-}
-
-/* three places where client capa is deleted:
- * 1. capa_thread_main(), main place to delete expired capa.
- * 2. ll_clear_inode_capas() in ll_clear_inode().
- * 3. ll_truncate_free_capa() delete truncate capa explicitly in
- *    ll_setattr_ost().
- */
-static int capa_thread_main(void *unused)
-{
-	struct obd_capa *ocapa, *tmp, *next;
-	struct inode *inode = NULL;
-	struct l_wait_info lwi = { 0 };
-	int rc;
-
-	thread_set_flags(&ll_capa_thread, SVC_RUNNING);
-	wake_up(&ll_capa_thread.t_ctl_waitq);
-
-	while (1) {
-		l_wait_event(ll_capa_thread.t_ctl_waitq,
-			     !thread_is_running(&ll_capa_thread) ||
-			     have_expired_capa(),
-			     &lwi);
-
-		if (!thread_is_running(&ll_capa_thread))
-			break;
-
-		next = NULL;
-
-		spin_lock(&capa_lock);
-		list_for_each_entry_safe(ocapa, tmp, ll_capa_list, c_list) {
-			__u64 ibits;
-
-			LASSERT(ocapa->c_capa.lc_opc != CAPA_OPC_OSS_TRUNC);
-
-			if (!capa_is_to_expire(ocapa)) {
-				next = ocapa;
-				break;
-			}
-
-			list_del_init(&ocapa->c_list);
-
-			/* for MDS capability, only renew those which belong to
-			 * dir, or its inode is opened, or client holds LOOKUP
-			 * lock.
-			 */
-			/* ibits may be changed by ll_have_md_lock() so we have
-			 * to set it each time
-			 */
-			ibits = MDS_INODELOCK_LOOKUP;
-			if (capa_for_mds(&ocapa->c_capa) &&
-			    !S_ISDIR(ocapa->u.cli.inode->i_mode) &&
-			    obd_capa_open_count(ocapa) == 0 &&
-			    !ll_have_md_lock(ocapa->u.cli.inode,
-					     &ibits, LCK_MINMODE)) {
-				DEBUG_CAPA(D_SEC, &ocapa->c_capa,
-					   "skip renewal for");
-				sort_add_capa(ocapa, &ll_idle_capas);
-				continue;
-			}
-
-			/* for OSS capability, only renew those whose inode is
-			 * opened.
-			 */
-			if (capa_for_oss(&ocapa->c_capa) &&
-			    obd_capa_open_count(ocapa) == 0) {
-				/* oss capa with open count == 0 won't renew,
-				 * move to idle list
-				 */
-				sort_add_capa(ocapa, &ll_idle_capas);
-				continue;
-			}
-
-			/* NB iput() is in ll_update_capa() */
-			inode = igrab(ocapa->u.cli.inode);
-			if (!inode) {
-				DEBUG_CAPA(D_ERROR, &ocapa->c_capa,
-					   "igrab failed for");
-				continue;
-			}
-
-			capa_get(ocapa);
-			ll_capa_renewed++;
-			spin_unlock(&capa_lock);
-			rc = md_renew_capa(ll_i2mdexp(inode), ocapa,
-					   ll_update_capa);
-			spin_lock(&capa_lock);
-			if (rc) {
-				DEBUG_CAPA(D_ERROR, &ocapa->c_capa,
-					   "renew failed: %d", rc);
-				ll_capa_renewal_failed++;
-			}
-		}
-
-		if (next)
-			update_capa_timer(next, capa_renewal_time(next));
-
-		list_for_each_entry_safe(ocapa, tmp, &ll_idle_capas,
-					 c_list) {
-			if (!capa_is_expired(ocapa)) {
-				if (!next)
-					update_capa_timer(ocapa,
-							  ocapa->c_expiry);
-				break;
-			}
-
-			if (atomic_read(&ocapa->c_refc) > 1) {
-				DEBUG_CAPA(D_SEC, &ocapa->c_capa,
-					   "expired(c_refc %d), don't release",
-					   atomic_read(&ocapa->c_refc));
-				/* don't try to renew any more */
-				list_del_init(&ocapa->c_list);
-				continue;
-			}
-
-			/* expired capa is released. */
-			DEBUG_CAPA(D_SEC, &ocapa->c_capa, "release expired");
-			ll_delete_capa(ocapa);
-		}
-
-		spin_unlock(&capa_lock);
-	}
-
-	thread_set_flags(&ll_capa_thread, SVC_STOPPED);
-	wake_up(&ll_capa_thread.t_ctl_waitq);
-	return 0;
-}
-
-void ll_capa_timer_callback(unsigned long unused)
-{
-	wake_up(&ll_capa_thread.t_ctl_waitq);
-}
-
-int ll_capa_thread_start(void)
-{
-	struct task_struct *task;
-
-	init_waitqueue_head(&ll_capa_thread.t_ctl_waitq);
-
-	task = kthread_run(capa_thread_main, NULL, "ll_capa");
-	if (IS_ERR(task)) {
-		CERROR("cannot start expired capa thread: rc %ld\n",
-		       PTR_ERR(task));
-		return PTR_ERR(task);
-	}
-	wait_event(ll_capa_thread.t_ctl_waitq,
-		   thread_is_running(&ll_capa_thread));
-
-	return 0;
-}
-
-void ll_capa_thread_stop(void)
-{
-	thread_set_flags(&ll_capa_thread, SVC_STOPPING);
-	wake_up(&ll_capa_thread.t_ctl_waitq);
-	wait_event(ll_capa_thread.t_ctl_waitq,
-		   thread_is_stopped(&ll_capa_thread));
-}
-
-struct obd_capa *ll_osscapa_get(struct inode *inode, __u64 opc)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct obd_capa *ocapa;
-	int found = 0;
-
-	if ((ll_i2sbi(inode)->ll_flags & LL_SBI_OSS_CAPA) == 0)
-		return NULL;
-
-	LASSERT(opc == CAPA_OPC_OSS_WRITE || opc == CAPA_OPC_OSS_RW ||
-		opc == CAPA_OPC_OSS_TRUNC);
-
-	spin_lock(&capa_lock);
-	list_for_each_entry(ocapa, &lli->lli_oss_capas, u.cli.lli_list) {
-		if (capa_is_expired(ocapa))
-			continue;
-		if ((opc & CAPA_OPC_OSS_WRITE) &&
-		    capa_opc_supported(&ocapa->c_capa, CAPA_OPC_OSS_WRITE)) {
-			found = 1;
-			break;
-		} else if ((opc & CAPA_OPC_OSS_READ) &&
-			   capa_opc_supported(&ocapa->c_capa,
-					      CAPA_OPC_OSS_READ)) {
-			found = 1;
-			break;
-		} else if ((opc & CAPA_OPC_OSS_TRUNC) &&
-			   capa_opc_supported(&ocapa->c_capa, opc)) {
-			found = 1;
-			break;
-		}
-	}
-
-	if (found) {
-		LASSERT(lu_fid_eq(capa_fid(&ocapa->c_capa),
-				  ll_inode2fid(inode)));
-		LASSERT(ocapa->c_site == CAPA_SITE_CLIENT);
-
-		capa_get(ocapa);
-
-		DEBUG_CAPA(D_SEC, &ocapa->c_capa, "found client");
-	} else {
-		ocapa = NULL;
-
-		if (atomic_read(&ll_capa_debug)) {
-			CERROR("no capability for " DFID " opc %#llx\n",
-			       PFID(&lli->lli_fid), opc);
-			atomic_set(&ll_capa_debug, 0);
-		}
-	}
-	spin_unlock(&capa_lock);
-
-	return ocapa;
-}
-EXPORT_SYMBOL(ll_osscapa_get);
-
-struct obd_capa *ll_mdscapa_get(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct obd_capa *ocapa;
-
-	LASSERT(inode);
-
-	if ((ll_i2sbi(inode)->ll_flags & LL_SBI_MDS_CAPA) == 0)
-		return NULL;
-
-	spin_lock(&capa_lock);
-	ocapa = capa_get(lli->lli_mds_capa);
-	spin_unlock(&capa_lock);
-	if (!ocapa && atomic_read(&ll_capa_debug)) {
-		CERROR("no mds capability for " DFID "\n", PFID(&lli->lli_fid));
-		atomic_set(&ll_capa_debug, 0);
-	}
-
-	return ocapa;
-}
-
-static struct obd_capa *do_add_mds_capa(struct inode *inode,
-					struct obd_capa *ocapa)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct obd_capa *old = lli->lli_mds_capa;
-	struct lustre_capa *capa = &ocapa->c_capa;
-
-	if (!old) {
-		ocapa->u.cli.inode = inode;
-		lli->lli_mds_capa = ocapa;
-		capa_count[CAPA_SITE_CLIENT]++;
-
-		DEBUG_CAPA(D_SEC, capa, "add MDS");
-	} else {
-		spin_lock(&old->c_lock);
-		old->c_capa = *capa;
-		spin_unlock(&old->c_lock);
-
-		DEBUG_CAPA(D_SEC, capa, "update MDS");
-
-		capa_put(ocapa);
-		ocapa = old;
-	}
-	return ocapa;
-}
-
-static struct obd_capa *do_lookup_oss_capa(struct inode *inode, int opc)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct obd_capa *ocapa;
-
-	/* inside capa_lock */
-	list_for_each_entry(ocapa, &lli->lli_oss_capas, u.cli.lli_list) {
-		if ((capa_opc(&ocapa->c_capa) & opc) != opc)
-			continue;
-
-		LASSERT(lu_fid_eq(capa_fid(&ocapa->c_capa),
-				  ll_inode2fid(inode)));
-		LASSERT(ocapa->c_site == CAPA_SITE_CLIENT);
-
-		DEBUG_CAPA(D_SEC, &ocapa->c_capa, "found client");
-		return ocapa;
-	}
-
-	return NULL;
-}
-
-static inline void inode_add_oss_capa(struct inode *inode,
-				      struct obd_capa *ocapa)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct obd_capa *tmp;
-	struct list_head *next = NULL;
-
-	/* capa is sorted in lli_oss_capas so lookup can always find the
-	 * latest one
-	 */
-	list_for_each_entry(tmp, &lli->lli_oss_capas, u.cli.lli_list) {
-		if (cfs_time_after(ocapa->c_expiry, tmp->c_expiry)) {
-			next = &tmp->u.cli.lli_list;
-			break;
-		}
-	}
-	LASSERT(&ocapa->u.cli.lli_list != next);
-	list_move_tail(&ocapa->u.cli.lli_list, next ?: &lli->lli_oss_capas);
-}
-
-static struct obd_capa *do_add_oss_capa(struct inode *inode,
-					struct obd_capa *ocapa)
-{
-	struct obd_capa *old;
-	struct lustre_capa *capa = &ocapa->c_capa;
-
-	LASSERTF(S_ISREG(inode->i_mode),
-		 "inode has oss capa, but not regular file, mode: %d\n",
-		 inode->i_mode);
-
-	/* FIXME: can't replace it so easily with fine-grained opc */
-	old = do_lookup_oss_capa(inode, capa_opc(capa) & CAPA_OPC_OSS_ONLY);
-	if (!old) {
-		ocapa->u.cli.inode = inode;
-		INIT_LIST_HEAD(&ocapa->u.cli.lli_list);
-		capa_count[CAPA_SITE_CLIENT]++;
-
-		DEBUG_CAPA(D_SEC, capa, "add OSS");
-	} else {
-		spin_lock(&old->c_lock);
-		old->c_capa = *capa;
-		spin_unlock(&old->c_lock);
-
-		DEBUG_CAPA(D_SEC, capa, "update OSS");
-
-		capa_put(ocapa);
-		ocapa = old;
-	}
-
-	inode_add_oss_capa(inode, ocapa);
-	return ocapa;
-}
-
-struct obd_capa *ll_add_capa(struct inode *inode, struct obd_capa *ocapa)
-{
-	spin_lock(&capa_lock);
-	ocapa = capa_for_mds(&ocapa->c_capa) ? do_add_mds_capa(inode, ocapa) :
-					       do_add_oss_capa(inode, ocapa);
-
-	/* truncate capa won't renew */
-	if (ocapa->c_capa.lc_opc != CAPA_OPC_OSS_TRUNC) {
-		set_capa_expiry(ocapa);
-		list_del_init(&ocapa->c_list);
-		sort_add_capa(ocapa, ll_capa_list);
-
-		update_capa_timer(ocapa, capa_renewal_time(ocapa));
-	}
-
-	spin_unlock(&capa_lock);
-
-	atomic_set(&ll_capa_debug, 1);
-	return ocapa;
-}
-
-static inline void delay_capa_renew(struct obd_capa *oc, unsigned long delay)
-{
-	/* NB: set a fake expiry for this capa to prevent it renew too soon */
-	oc->c_expiry = cfs_time_add(oc->c_expiry, cfs_time_seconds(delay));
-}
-
-static int ll_update_capa(struct obd_capa *ocapa, struct lustre_capa *capa)
-{
-	struct inode *inode = ocapa->u.cli.inode;
-	int rc = 0;
-
-	LASSERT(ocapa);
-
-	if (IS_ERR(capa)) {
-		/* set error code */
-		rc = PTR_ERR(capa);
-		spin_lock(&capa_lock);
-		if (rc == -ENOENT) {
-			DEBUG_CAPA(D_SEC, &ocapa->c_capa,
-				   "renewal canceled because object removed");
-			ll_capa_renewal_noent++;
-		} else {
-			ll_capa_renewal_failed++;
-
-			/* failed capa won't be renewed any longer, but if -EIO,
-			 * client might be doing recovery, retry in 2 min.
-			 */
-			if (rc == -EIO && !capa_is_expired(ocapa)) {
-				delay_capa_renew(ocapa, 120);
-				DEBUG_CAPA(D_ERROR, &ocapa->c_capa,
-					   "renewal failed: -EIO, retry in 2 mins");
-				ll_capa_renewal_retries++;
-				goto retry;
-			} else {
-				DEBUG_CAPA(D_ERROR, &ocapa->c_capa,
-					   "renewal failed(rc: %d) for", rc);
-			}
-		}
-
-		list_del_init(&ocapa->c_list);
-		sort_add_capa(ocapa, &ll_idle_capas);
-		spin_unlock(&capa_lock);
-
-		capa_put(ocapa);
-		iput(inode);
-		return rc;
-	}
-
-	spin_lock(&ocapa->c_lock);
-	LASSERT(!memcmp(&ocapa->c_capa, capa,
-			offsetof(struct lustre_capa, lc_opc)));
-	ocapa->c_capa = *capa;
-	set_capa_expiry(ocapa);
-	spin_unlock(&ocapa->c_lock);
-
-	spin_lock(&capa_lock);
-	if (capa_for_oss(capa))
-		inode_add_oss_capa(inode, ocapa);
-	DEBUG_CAPA(D_SEC, capa, "renew");
-retry:
-	list_del_init(&ocapa->c_list);
-	sort_add_capa(ocapa, ll_capa_list);
-	update_capa_timer(ocapa, capa_renewal_time(ocapa));
-	spin_unlock(&capa_lock);
-
-	capa_put(ocapa);
-	iput(inode);
-	return rc;
-}
-
-void ll_capa_open(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-
-	if ((ll_i2sbi(inode)->ll_flags & (LL_SBI_MDS_CAPA | LL_SBI_OSS_CAPA))
-	    == 0)
-		return;
-
-	if (!S_ISREG(inode->i_mode))
-		return;
-
-	atomic_inc(&lli->lli_open_count);
-}
-
-void ll_capa_close(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-
-	if ((ll_i2sbi(inode)->ll_flags & (LL_SBI_MDS_CAPA | LL_SBI_OSS_CAPA))
-	    == 0)
-		return;
-
-	if (!S_ISREG(inode->i_mode))
-		return;
-
-	atomic_dec(&lli->lli_open_count);
-}
-
-/* delete CAPA_OPC_OSS_TRUNC only */
-void ll_truncate_free_capa(struct obd_capa *ocapa)
-{
-	if (!ocapa)
-		return;
-
-	LASSERT(ocapa->c_capa.lc_opc & CAPA_OPC_OSS_TRUNC);
-	DEBUG_CAPA(D_SEC, &ocapa->c_capa, "free truncate");
-
-	/* release ref when find */
-	capa_put(ocapa);
-	if (likely(ocapa->c_capa.lc_opc == CAPA_OPC_OSS_TRUNC)) {
-		spin_lock(&capa_lock);
-		ll_delete_capa(ocapa);
-		spin_unlock(&capa_lock);
-	}
-}
-
-void ll_clear_inode_capas(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct obd_capa *ocapa, *tmp;
-
-	spin_lock(&capa_lock);
-	ocapa = lli->lli_mds_capa;
-	if (ocapa)
-		ll_delete_capa(ocapa);
-
-	list_for_each_entry_safe(ocapa, tmp, &lli->lli_oss_capas,
-				 u.cli.lli_list)
-		ll_delete_capa(ocapa);
-	spin_unlock(&capa_lock);
-}
-
-void ll_print_capa_stat(struct ll_sb_info *sbi)
-{
-	if (sbi->ll_flags & (LL_SBI_MDS_CAPA | LL_SBI_OSS_CAPA))
-		LCONSOLE_INFO("Fid capabilities renewed: %llu\n"
-			      "Fid capabilities renewal ENOENT: %llu\n"
-			      "Fid capabilities failed to renew: %llu\n"
-			      "Fid capabilities renewal retries: %llu\n",
-			      ll_capa_renewed, ll_capa_renewal_noent,
-			      ll_capa_renewal_failed, ll_capa_renewal_retries);
-}
diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c
deleted file mode 100644
index 7bdae723fedd..000000000000
--- a/drivers/staging/lustre/lustre/llite/llite_close.c
+++ /dev/null
@@ -1,393 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/llite_close.c
- *
- * Lustre Lite routines to issue a secondary close after writeback
- */
-
-#include <linux/module.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-
-/** records that a write is in flight */
-void vvp_write_pending(struct ccc_object *club, struct ccc_page *page)
-{
-	struct ll_inode_info *lli = ll_i2info(club->cob_inode);
-
-	spin_lock(&lli->lli_lock);
-	lli->lli_flags |= LLIF_SOM_DIRTY;
-	if (page != NULL && list_empty(&page->cpg_pending_linkage))
-		list_add(&page->cpg_pending_linkage,
-			     &club->cob_pending_list);
-	spin_unlock(&lli->lli_lock);
-}
-
-/** records that a write has completed */
-void vvp_write_complete(struct ccc_object *club, struct ccc_page *page)
-{
-	struct ll_inode_info *lli = ll_i2info(club->cob_inode);
-	int rc = 0;
-
-	spin_lock(&lli->lli_lock);
-	if (page != NULL && !list_empty(&page->cpg_pending_linkage)) {
-		list_del_init(&page->cpg_pending_linkage);
-		rc = 1;
-	}
-	spin_unlock(&lli->lli_lock);
-	if (rc)
-		ll_queue_done_writing(club->cob_inode, 0);
-}
-
-/** Queues DONE_WRITING if
- * - done writing is allowed;
- * - inode has no no dirty pages; */
-void ll_queue_done_writing(struct inode *inode, unsigned long flags)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ccc_object *club = cl2ccc(ll_i2info(inode)->lli_clob);
-
-	spin_lock(&lli->lli_lock);
-	lli->lli_flags |= flags;
-
-	if ((lli->lli_flags & LLIF_DONE_WRITING) &&
-	    list_empty(&club->cob_pending_list)) {
-		struct ll_close_queue *lcq = ll_i2sbi(inode)->ll_lcq;
-
-		if (lli->lli_flags & LLIF_MDS_SIZE_LOCK)
-			CWARN("ino %lu/%u(flags %u) som valid it just after recovery\n",
-			      inode->i_ino, inode->i_generation,
-			      lli->lli_flags);
-		/* DONE_WRITING is allowed and inode has no dirty page. */
-		spin_lock(&lcq->lcq_lock);
-
-		LASSERT(list_empty(&lli->lli_close_list));
-		CDEBUG(D_INODE, "adding inode %lu/%u to close list\n",
-		       inode->i_ino, inode->i_generation);
-		list_add_tail(&lli->lli_close_list, &lcq->lcq_head);
-
-		/* Avoid a concurrent insertion into the close thread queue:
-		 * an inode is already in the close thread, open(), write(),
-		 * close() happen, epoch is closed as the inode is marked as
-		 * LLIF_EPOCH_PENDING. When pages are written inode should not
-		 * be inserted into the queue again, clear this flag to avoid
-		 * it. */
-		lli->lli_flags &= ~LLIF_DONE_WRITING;
-
-		wake_up(&lcq->lcq_waitq);
-		spin_unlock(&lcq->lcq_lock);
-	}
-	spin_unlock(&lli->lli_lock);
-}
-
-/** Pack SOM attributes info @opdata for CLOSE, DONE_WRITING rpc. */
-void ll_done_writing_attr(struct inode *inode, struct md_op_data *op_data)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-
-	op_data->op_flags |= MF_SOM_CHANGE;
-	/* Check if Size-on-MDS attributes are valid. */
-	if (lli->lli_flags & LLIF_MDS_SIZE_LOCK)
-		CERROR("ino %lu/%u(flags %u) som valid it just after recovery\n",
-		       inode->i_ino, inode->i_generation,
-		       lli->lli_flags);
-
-	if (!cl_local_size(inode)) {
-		/* Send Size-on-MDS Attributes if valid. */
-		op_data->op_attr.ia_valid |= ATTR_MTIME_SET | ATTR_CTIME_SET |
-				ATTR_ATIME_SET | ATTR_SIZE | ATTR_BLOCKS;
-	}
-}
-
-/** Closes ioepoch and packs Size-on-MDS attribute if needed into @op_data. */
-void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
-		      struct obd_client_handle **och, unsigned long flags)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ccc_object *club = cl2ccc(ll_i2info(inode)->lli_clob);
-
-	spin_lock(&lli->lli_lock);
-	if (!(list_empty(&club->cob_pending_list))) {
-		if (!(lli->lli_flags & LLIF_EPOCH_PENDING)) {
-			LASSERT(*och != NULL);
-			LASSERT(lli->lli_pending_och == NULL);
-			/* Inode is dirty and there is no pending write done
-			 * request yet, DONE_WRITE is to be sent later. */
-			lli->lli_flags |= LLIF_EPOCH_PENDING;
-			lli->lli_pending_och = *och;
-			spin_unlock(&lli->lli_lock);
-
-			inode = igrab(inode);
-			LASSERT(inode);
-			goto out;
-		}
-		if (flags & LLIF_DONE_WRITING) {
-			/* Some pages are still dirty, it is early to send
-			 * DONE_WRITE. Wait until all pages will be flushed
-			 * and try DONE_WRITE again later. */
-			LASSERT(!(lli->lli_flags & LLIF_DONE_WRITING));
-			lli->lli_flags |= LLIF_DONE_WRITING;
-			spin_unlock(&lli->lli_lock);
-
-			inode = igrab(inode);
-			LASSERT(inode);
-			goto out;
-		}
-	}
-	CDEBUG(D_INODE, "Epoch %llu closed on "DFID"\n",
-	       ll_i2info(inode)->lli_ioepoch, PFID(&lli->lli_fid));
-	op_data->op_flags |= MF_EPOCH_CLOSE;
-
-	if (flags & LLIF_DONE_WRITING) {
-		LASSERT(lli->lli_flags & LLIF_SOM_DIRTY);
-		LASSERT(!(lli->lli_flags & LLIF_DONE_WRITING));
-		*och = lli->lli_pending_och;
-		lli->lli_pending_och = NULL;
-		lli->lli_flags &= ~LLIF_EPOCH_PENDING;
-	} else {
-		/* Pack Size-on-MDS inode attributes only if they has changed */
-		if (!(lli->lli_flags & LLIF_SOM_DIRTY)) {
-			spin_unlock(&lli->lli_lock);
-			goto out;
-		}
-
-		/* There is a pending DONE_WRITE -- close epoch with no
-		 * attribute change. */
-		if (lli->lli_flags & LLIF_EPOCH_PENDING) {
-			spin_unlock(&lli->lli_lock);
-			goto out;
-		}
-	}
-
-	LASSERT(list_empty(&club->cob_pending_list));
-	lli->lli_flags &= ~LLIF_SOM_DIRTY;
-	spin_unlock(&lli->lli_lock);
-	ll_done_writing_attr(inode, op_data);
-
-out:
-	return;
-}
-
-/**
- * Cliens updates SOM attributes on MDS (including llog cookies):
- * obd_getattr with no lock and md_setattr.
- */
-int ll_som_update(struct inode *inode, struct md_op_data *op_data)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ptlrpc_request *request = NULL;
-	__u32 old_flags;
-	struct obdo *oa;
-	int rc;
-
-	LASSERT(op_data != NULL);
-	if (lli->lli_flags & LLIF_MDS_SIZE_LOCK)
-		CERROR("ino %lu/%u(flags %u) som valid it just after recovery\n",
-		       inode->i_ino, inode->i_generation,
-		       lli->lli_flags);
-
-	OBDO_ALLOC(oa);
-	if (!oa) {
-		CERROR("can't allocate memory for Size-on-MDS update.\n");
-		return -ENOMEM;
-	}
-
-	old_flags = op_data->op_flags;
-	op_data->op_flags = MF_SOM_CHANGE;
-
-	/* If inode is already in another epoch, skip getattr from OSTs. */
-	if (lli->lli_ioepoch == op_data->op_ioepoch) {
-		rc = ll_inode_getattr(inode, oa, op_data->op_ioepoch,
-				      old_flags & MF_GETATTR_LOCK);
-		if (rc) {
-			oa->o_valid = 0;
-			if (rc != -ENOENT)
-				CERROR("inode_getattr failed (%d): unable to send a Size-on-MDS attribute update for inode %lu/%u\n",
-				       rc, inode->i_ino,
-				       inode->i_generation);
-		} else {
-			CDEBUG(D_INODE, "Size-on-MDS update on "DFID"\n",
-			       PFID(&lli->lli_fid));
-		}
-		/* Install attributes into op_data. */
-		md_from_obdo(op_data, oa, oa->o_valid);
-	}
-
-	rc = md_setattr(ll_i2sbi(inode)->ll_md_exp, op_data,
-			NULL, 0, NULL, 0, &request, NULL);
-	ptlrpc_req_finished(request);
-
-	OBDO_FREE(oa);
-	return rc;
-}
-
-/**
- * Closes the ioepoch and packs all the attributes into @op_data for
- * DONE_WRITING rpc.
- */
-static void ll_prepare_done_writing(struct inode *inode,
-				    struct md_op_data *op_data,
-				    struct obd_client_handle **och)
-{
-	ll_ioepoch_close(inode, op_data, och, LLIF_DONE_WRITING);
-	/* If there is no @och, we do not do D_W yet. */
-	if (*och == NULL)
-		return;
-
-	ll_pack_inode2opdata(inode, op_data, &(*och)->och_fh);
-	ll_prep_md_op_data(op_data, inode, NULL, NULL,
-			   0, 0, LUSTRE_OPC_ANY, NULL);
-}
-
-/** Send a DONE_WRITING rpc. */
-static void ll_done_writing(struct inode *inode)
-{
-	struct obd_client_handle *och = NULL;
-	struct md_op_data *op_data;
-	int rc;
-
-	LASSERT(exp_connect_som(ll_i2mdexp(inode)));
-
-	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (!op_data)
-		return;
-
-	ll_prepare_done_writing(inode, op_data, &och);
-	/* If there is no @och, we do not do D_W yet. */
-	if (och == NULL)
-		goto out;
-
-	rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, NULL);
-	if (rc == -EAGAIN) {
-		/* MDS has instructed us to obtain Size-on-MDS attribute from
-		 * OSTs and send setattr to back to MDS. */
-		rc = ll_som_update(inode, op_data);
-	} else if (rc) {
-		CERROR("inode %lu mdc done_writing failed: rc = %d\n",
-		       inode->i_ino, rc);
-	}
-out:
-	ll_finish_md_op_data(op_data);
-	if (och) {
-		md_clear_open_replay_data(ll_i2sbi(inode)->ll_md_exp, och);
-		kfree(och);
-	}
-}
-
-static struct ll_inode_info *ll_close_next_lli(struct ll_close_queue *lcq)
-{
-	struct ll_inode_info *lli = NULL;
-
-	spin_lock(&lcq->lcq_lock);
-
-	if (!list_empty(&lcq->lcq_head)) {
-		lli = list_entry(lcq->lcq_head.next, struct ll_inode_info,
-				     lli_close_list);
-		list_del_init(&lli->lli_close_list);
-	} else if (atomic_read(&lcq->lcq_stop))
-		lli = ERR_PTR(-EALREADY);
-
-	spin_unlock(&lcq->lcq_lock);
-	return lli;
-}
-
-static int ll_close_thread(void *arg)
-{
-	struct ll_close_queue *lcq = arg;
-
-	complete(&lcq->lcq_comp);
-
-	while (1) {
-		struct l_wait_info lwi = { 0 };
-		struct ll_inode_info *lli;
-		struct inode *inode;
-
-		l_wait_event_exclusive(lcq->lcq_waitq,
-				       (lli = ll_close_next_lli(lcq)) != NULL,
-				       &lwi);
-		if (IS_ERR(lli))
-			break;
-
-		inode = ll_info2i(lli);
-		CDEBUG(D_INFO, "done_writing for inode %lu/%u\n",
-		       inode->i_ino, inode->i_generation);
-		ll_done_writing(inode);
-		iput(inode);
-	}
-
-	CDEBUG(D_INFO, "ll_close exiting\n");
-	complete(&lcq->lcq_comp);
-	return 0;
-}
-
-int ll_close_thread_start(struct ll_close_queue **lcq_ret)
-{
-	struct ll_close_queue *lcq;
-	struct task_struct *task;
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CLOSE_THREAD))
-		return -EINTR;
-
-	lcq = kzalloc(sizeof(*lcq), GFP_NOFS);
-	if (!lcq)
-		return -ENOMEM;
-
-	spin_lock_init(&lcq->lcq_lock);
-	INIT_LIST_HEAD(&lcq->lcq_head);
-	init_waitqueue_head(&lcq->lcq_waitq);
-	init_completion(&lcq->lcq_comp);
-
-	task = kthread_run(ll_close_thread, lcq, "ll_close");
-	if (IS_ERR(task)) {
-		kfree(lcq);
-		return PTR_ERR(task);
-	}
-
-	wait_for_completion(&lcq->lcq_comp);
-	*lcq_ret = lcq;
-	return 0;
-}
-
-void ll_close_thread_shutdown(struct ll_close_queue *lcq)
-{
-	init_completion(&lcq->lcq_comp);
-	atomic_inc(&lcq->lcq_stop);
-	wake_up(&lcq->lcq_waitq);
-	wait_for_completion(&lcq->lcq_comp);
-	kfree(lcq);
-}
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
deleted file mode 100644
index ec8fff463208..000000000000
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ /dev/null
@@ -1,1493 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef LLITE_INTERNAL_H
-#define LLITE_INTERNAL_H
-#include "../include/lustre_debug.h"
-#include "../include/lustre_ver.h"
-#include "../include/lustre_disk.h"	/* for s2sbi */
-#include "../include/lustre_eacl.h"
-
-/* for struct cl_lock_descr and struct cl_io */
-#include "../include/cl_object.h"
-#include "../include/lclient.h"
-#include "../include/lustre_mdc.h"
-#include "../include/lustre_intent.h"
-#include <linux/compat.h>
-#include <linux/posix_acl_xattr.h>
-
-#ifndef FMODE_EXEC
-#define FMODE_EXEC 0
-#endif
-
-#ifndef VM_FAULT_RETRY
-#define VM_FAULT_RETRY 0
-#endif
-
-/** Only used on client-side for indicating the tail of dir hash/offset. */
-#define LL_DIR_END_OFF	  0x7fffffffffffffffULL
-#define LL_DIR_END_OFF_32BIT    0x7fffffffUL
-
-#define LL_IT2STR(it) ((it) ? ldlm_it2str((it)->it_op) : "0")
-#define LUSTRE_FPRIVATE(file) ((file)->private_data)
-
-struct ll_dentry_data {
-	struct lookup_intent		*lld_it;
-	unsigned int			lld_sa_generation;
-	unsigned int			lld_invalid:1;
-	struct rcu_head			lld_rcu_head;
-};
-
-#define ll_d2d(de) ((struct ll_dentry_data*)((de)->d_fsdata))
-
-#define LLI_INODE_MAGIC		 0x111d0de5
-#define LLI_INODE_DEAD		  0xdeadd00d
-
-/* remote client permission cache */
-#define REMOTE_PERM_HASHSIZE 16
-
-struct ll_getname_data {
-	struct dir_context ctx;
-	char	    *lgd_name;      /* points to a buffer with NAME_MAX+1 size */
-	struct lu_fid    lgd_fid;       /* target fid we are looking for */
-	int	      lgd_found;     /* inode matched? */
-};
-
-/* llite setxid/access permission for user on remote client */
-struct ll_remote_perm {
-	struct hlist_node	lrp_list;
-	uid_t		   lrp_uid;
-	gid_t		   lrp_gid;
-	uid_t		   lrp_fsuid;
-	gid_t		   lrp_fsgid;
-	int		     lrp_access_perm; /* MAY_READ/WRITE/EXEC, this
-						    is access permission with
-						    lrp_fsuid/lrp_fsgid. */
-};
-
-enum lli_flags {
-	/* MDS has an authority for the Size-on-MDS attributes. */
-	LLIF_MDS_SIZE_LOCK      = (1 << 0),
-	/* Epoch close is postponed. */
-	LLIF_EPOCH_PENDING      = (1 << 1),
-	/* DONE WRITING is allowed. */
-	LLIF_DONE_WRITING       = (1 << 2),
-	/* Sizeon-on-MDS attributes are changed. An attribute update needs to
-	 * be sent to MDS. */
-	LLIF_SOM_DIRTY	  = (1 << 3),
-	/* File data is modified. */
-	LLIF_DATA_MODIFIED      = (1 << 4),
-	/* File is being restored */
-	LLIF_FILE_RESTORING	= (1 << 5),
-	/* Xattr cache is attached to the file */
-	LLIF_XATTR_CACHE	= (1 << 6),
-};
-
-struct ll_inode_info {
-	__u32				lli_inode_magic;
-	__u32				lli_flags;
-	__u64				lli_ioepoch;
-
-	spinlock_t			lli_lock;
-	struct posix_acl		*lli_posix_acl;
-
-	struct hlist_head		*lli_remote_perms;
-	struct mutex				lli_rmtperm_mutex;
-
-	/* identifying fields for both metadata and data stacks. */
-	struct lu_fid		   lli_fid;
-	/* Parent fid for accessing default stripe data on parent directory
-	 * for allocating OST objects after a mknod() and later open-by-FID. */
-	struct lu_fid		   lli_pfid;
-
-	struct list_head		      lli_close_list;
-	struct list_head		      lli_oss_capas;
-	/* open count currently used by capability only, indicate whether
-	 * capability needs renewal */
-	atomic_t		    lli_open_count;
-	struct obd_capa		*lli_mds_capa;
-	unsigned long		      lli_rmtperm_time;
-
-	/* handle is to be sent to MDS later on done_writing and setattr.
-	 * Open handle data are needed for the recovery to reconstruct
-	 * the inode state on the MDS. XXX: recovery is not ready yet. */
-	struct obd_client_handle       *lli_pending_och;
-
-	/* We need all three because every inode may be opened in different
-	 * modes */
-	struct obd_client_handle       *lli_mds_read_och;
-	struct obd_client_handle       *lli_mds_write_och;
-	struct obd_client_handle       *lli_mds_exec_och;
-	__u64			   lli_open_fd_read_count;
-	__u64			   lli_open_fd_write_count;
-	__u64			   lli_open_fd_exec_count;
-	/* Protects access to och pointers and their usage counters */
-	struct mutex			lli_och_mutex;
-
-	struct inode			lli_vfs_inode;
-
-	/* the most recent timestamps obtained from mds */
-	struct ost_lvb			lli_lvb;
-	spinlock_t			lli_agl_lock;
-
-	/* Try to make the d::member and f::member are aligned. Before using
-	 * these members, make clear whether it is directory or not. */
-	union {
-		/* for directory */
-		struct {
-			/* serialize normal readdir and statahead-readdir. */
-			struct mutex			d_readdir_mutex;
-
-			/* metadata statahead */
-			/* since parent-child threads can share the same @file
-			 * struct, "opendir_key" is the token when dir close for
-			 * case of parent exit before child -- it is me should
-			 * cleanup the dir readahead. */
-			void			   *d_opendir_key;
-			struct ll_statahead_info       *d_sai;
-			/* protect statahead stuff. */
-			spinlock_t			d_sa_lock;
-			/* "opendir_pid" is the token when lookup/revalid
-			 * -- I am the owner of dir statahead. */
-			pid_t			   d_opendir_pid;
-		} d;
-
-#define lli_readdir_mutex       u.d.d_readdir_mutex
-#define lli_opendir_key	 u.d.d_opendir_key
-#define lli_sai		 u.d.d_sai
-#define lli_sa_lock	     u.d.d_sa_lock
-#define lli_opendir_pid	 u.d.d_opendir_pid
-
-		/* for non-directory */
-		struct {
-			struct mutex			f_size_mutex;
-			char				*f_symlink_name;
-			__u64				f_maxbytes;
-			/*
-			 * struct rw_semaphore {
-			 *    signed long	count;     // align d.d_def_acl
-			 *    spinlock_t	wait_lock; // align d.d_sa_lock
-			 *    struct list_head wait_list;
-			 * }
-			 */
-			struct rw_semaphore		f_trunc_sem;
-			struct mutex			f_write_mutex;
-
-			struct rw_semaphore		f_glimpse_sem;
-			unsigned long			f_glimpse_time;
-			struct list_head			f_agl_list;
-			__u64				f_agl_index;
-
-			/* for writepage() only to communicate to fsync */
-			int				f_async_rc;
-
-			/*
-			 * whenever a process try to read/write the file, the
-			 * jobid of the process will be saved here, and it'll
-			 * be packed into the write PRC when flush later.
-			 *
-			 * so the read/write statistics for jobid will not be
-			 * accurate if the file is shared by different jobs.
-			 */
-			char		     f_jobid[JOBSTATS_JOBID_SIZE];
-		} f;
-
-#define lli_size_mutex          u.f.f_size_mutex
-#define lli_symlink_name	u.f.f_symlink_name
-#define lli_maxbytes	    u.f.f_maxbytes
-#define lli_trunc_sem	   u.f.f_trunc_sem
-#define lli_write_mutex	 u.f.f_write_mutex
-#define lli_glimpse_sem		u.f.f_glimpse_sem
-#define lli_glimpse_time	u.f.f_glimpse_time
-#define lli_agl_list		u.f.f_agl_list
-#define lli_agl_index		u.f.f_agl_index
-#define lli_async_rc		u.f.f_async_rc
-#define lli_jobid		u.f.f_jobid
-
-	} u;
-
-	/* XXX: For following frequent used members, although they maybe special
-	 *      used for non-directory object, it is some time-wasting to check
-	 *      whether the object is directory or not before using them. On the
-	 *      other hand, currently, sizeof(f) > sizeof(d), it cannot reduce
-	 *      the "ll_inode_info" size even if moving those members into u.f.
-	 *      So keep them out side.
-	 *
-	 *      In the future, if more members are added only for directory,
-	 *      some of the following members can be moved into u.f.
-	 */
-	bool			    lli_has_smd;
-	struct cl_object	       *lli_clob;
-
-	/* mutex to request for layout lock exclusively. */
-	struct mutex			lli_layout_mutex;
-	/* Layout version, protected by lli_layout_lock */
-	__u32				lli_layout_gen;
-	spinlock_t			lli_layout_lock;
-
-	struct rw_semaphore		lli_xattrs_list_rwsem;
-	struct mutex			lli_xattrs_enq_lock;
-	struct list_head		lli_xattrs;/* ll_xattr_entry->xe_list */
-};
-
-static inline __u32 ll_layout_version_get(struct ll_inode_info *lli)
-{
-	__u32 gen;
-
-	spin_lock(&lli->lli_layout_lock);
-	gen = lli->lli_layout_gen;
-	spin_unlock(&lli->lli_layout_lock);
-
-	return gen;
-}
-
-static inline void ll_layout_version_set(struct ll_inode_info *lli, __u32 gen)
-{
-	spin_lock(&lli->lli_layout_lock);
-	lli->lli_layout_gen = gen;
-	spin_unlock(&lli->lli_layout_lock);
-}
-
-int ll_xattr_cache_destroy(struct inode *inode);
-
-int ll_xattr_cache_get(struct inode *inode,
-			const char *name,
-			char *buffer,
-			size_t size,
-			__u64 valid);
-
-/*
- * Locking to guarantee consistency of non-atomic updates to long long i_size,
- * consistency between file size and KMS.
- *
- * Implemented by ->lli_size_mutex and ->lsm_lock, nested in that order.
- */
-
-void ll_inode_size_lock(struct inode *inode);
-void ll_inode_size_unlock(struct inode *inode);
-
-/* FIXME: replace the name of this with LL_I to conform to kernel stuff */
-/* static inline struct ll_inode_info *LL_I(struct inode *inode) */
-static inline struct ll_inode_info *ll_i2info(struct inode *inode)
-{
-	return container_of(inode, struct ll_inode_info, lli_vfs_inode);
-}
-
-/* default to about 40meg of readahead on a given system.  That much tied
- * up in 512k readahead requests serviced at 40ms each is about 1GB/s. */
-#define SBI_DEFAULT_READAHEAD_MAX (40UL << (20 - PAGE_CACHE_SHIFT))
-
-/* default to read-ahead full files smaller than 2MB on the second read */
-#define SBI_DEFAULT_READAHEAD_WHOLE_MAX (2UL << (20 - PAGE_CACHE_SHIFT))
-
-enum ra_stat {
-	RA_STAT_HIT = 0,
-	RA_STAT_MISS,
-	RA_STAT_DISTANT_READPAGE,
-	RA_STAT_MISS_IN_WINDOW,
-	RA_STAT_FAILED_GRAB_PAGE,
-	RA_STAT_FAILED_MATCH,
-	RA_STAT_DISCARDED,
-	RA_STAT_ZERO_LEN,
-	RA_STAT_ZERO_WINDOW,
-	RA_STAT_EOF,
-	RA_STAT_MAX_IN_FLIGHT,
-	RA_STAT_WRONG_GRAB_PAGE,
-	_NR_RA_STAT,
-};
-
-struct ll_ra_info {
-	atomic_t	      ra_cur_pages;
-	unsigned long	     ra_max_pages;
-	unsigned long	     ra_max_pages_per_file;
-	unsigned long	     ra_max_read_ahead_whole_pages;
-};
-
-/* ra_io_arg will be filled in the beginning of ll_readahead with
- * ras_lock, then the following ll_read_ahead_pages will read RA
- * pages according to this arg, all the items in this structure are
- * counted by page index.
- */
-struct ra_io_arg {
-	unsigned long ria_start;  /* start offset of read-ahead*/
-	unsigned long ria_end;    /* end offset of read-ahead*/
-	/* If stride read pattern is detected, ria_stoff means where
-	 * stride read is started. Note: for normal read-ahead, the
-	 * value here is meaningless, and also it will not be accessed*/
-	pgoff_t ria_stoff;
-	/* ria_length and ria_pages are the length and pages length in the
-	 * stride I/O mode. And they will also be used to check whether
-	 * it is stride I/O read-ahead in the read-ahead pages*/
-	unsigned long ria_length;
-	unsigned long ria_pages;
-};
-
-/* LL_HIST_MAX=32 causes an overflow */
-#define LL_HIST_MAX 28
-#define LL_HIST_START 12 /* buckets start at 2^12 = 4k */
-#define LL_PROCESS_HIST_MAX 10
-struct per_process_info {
-	pid_t pid;
-	struct obd_histogram pp_r_hist;
-	struct obd_histogram pp_w_hist;
-};
-
-/* pp_extents[LL_PROCESS_HIST_MAX] will hold the combined process info */
-struct ll_rw_extents_info {
-	struct per_process_info pp_extents[LL_PROCESS_HIST_MAX + 1];
-};
-
-#define LL_OFFSET_HIST_MAX 100
-struct ll_rw_process_info {
-	pid_t		     rw_pid;
-	int		       rw_op;
-	loff_t		    rw_range_start;
-	loff_t		    rw_range_end;
-	loff_t		    rw_last_file_pos;
-	loff_t		    rw_offset;
-	size_t		    rw_smallest_extent;
-	size_t		    rw_largest_extent;
-	struct ll_file_data      *rw_last_file;
-};
-
-enum stats_track_type {
-	STATS_TRACK_ALL = 0,  /* track all processes */
-	STATS_TRACK_PID,      /* track process with this pid */
-	STATS_TRACK_PPID,     /* track processes with this ppid */
-	STATS_TRACK_GID,      /* track processes with this gid */
-	STATS_TRACK_LAST,
-};
-
-/* flags for sbi->ll_flags */
-#define LL_SBI_NOLCK	     0x01 /* DLM locking disabled (directio-only) */
-#define LL_SBI_CHECKSUM	  0x02 /* checksum each page as it's written */
-#define LL_SBI_FLOCK	     0x04
-#define LL_SBI_USER_XATTR	0x08 /* support user xattr */
-#define LL_SBI_ACL	       0x10 /* support ACL */
-#define LL_SBI_RMT_CLIENT	0x40 /* remote client */
-#define LL_SBI_MDS_CAPA	  0x80 /* support mds capa */
-#define LL_SBI_OSS_CAPA	 0x100 /* support oss capa */
-#define LL_SBI_LOCALFLOCK       0x200 /* Local flocks support by kernel */
-#define LL_SBI_LRU_RESIZE       0x400 /* lru resize support */
-#define LL_SBI_LAZYSTATFS       0x800 /* lazystatfs mount option */
-#define LL_SBI_SOM_PREVIEW     0x1000 /* SOM preview mount option */
-#define LL_SBI_32BIT_API       0x2000 /* generate 32 bit inodes. */
-#define LL_SBI_64BIT_HASH      0x4000 /* support 64-bits dir hash/offset */
-#define LL_SBI_AGL_ENABLED     0x8000 /* enable agl */
-#define LL_SBI_VERBOSE	0x10000 /* verbose mount/umount */
-#define LL_SBI_LAYOUT_LOCK    0x20000 /* layout lock support */
-#define LL_SBI_USER_FID2PATH  0x40000 /* allow fid2path by unprivileged users */
-#define LL_SBI_XATTR_CACHE    0x80000 /* support for xattr cache */
-
-#define LL_SBI_FLAGS {	\
-	"nolck",	\
-	"checksum",	\
-	"flock",	\
-	"xattr",	\
-	"acl",		\
-	"???",		\
-	"rmt_client",	\
-	"mds_capa",	\
-	"oss_capa",	\
-	"flock",	\
-	"lru_resize",	\
-	"lazy_statfs",	\
-	"som",		\
-	"32bit_api",	\
-	"64bit_hash",	\
-	"agl",		\
-	"verbose",	\
-	"layout",	\
-	"user_fid2path",\
-	"xattr",	\
-}
-
-#define RCE_HASHES      32
-
-struct rmtacl_ctl_entry {
-	struct list_head       rce_list;
-	pid_t	    rce_key; /* hash key */
-	int	      rce_ops; /* acl operation type */
-};
-
-struct rmtacl_ctl_table {
-	spinlock_t	rct_lock;
-	struct list_head	rct_entries[RCE_HASHES];
-};
-
-#define EE_HASHES       32
-
-struct eacl_table {
-	spinlock_t	et_lock;
-	struct list_head	et_entries[EE_HASHES];
-};
-
-struct ll_sb_info {
-	/* this protects pglist and ra_info.  It isn't safe to
-	 * grab from interrupt contexts */
-	spinlock_t		  ll_lock;
-	spinlock_t		  ll_pp_extent_lock; /* pp_extent entry*/
-	spinlock_t		  ll_process_lock; /* ll_rw_process_info */
-	struct obd_uuid	   ll_sb_uuid;
-	struct obd_export	*ll_md_exp;
-	struct obd_export	*ll_dt_exp;
-	struct dentry		*ll_debugfs_entry;
-	struct lu_fid	     ll_root_fid; /* root object fid */
-
-	int		       ll_flags;
-	unsigned int		  ll_umounting:1,
-				  ll_xattr_cache_enabled:1;
-	struct list_head		ll_conn_chain; /* per-conn chain of SBs */
-	struct lustre_client_ocd  ll_lco;
-
-	struct list_head		ll_orphan_dentry_list; /*please don't ask -p*/
-	struct ll_close_queue    *ll_lcq;
-
-	struct lprocfs_stats     *ll_stats; /* lprocfs stats counter */
-
-	struct cl_client_cache    ll_cache;
-
-	struct lprocfs_stats     *ll_ra_stats;
-
-	struct ll_ra_info	 ll_ra_info;
-	unsigned int	      ll_namelen;
-	struct file_operations   *ll_fop;
-
-	unsigned int	      ll_md_brw_size; /* used by readdir */
-
-	struct lu_site	   *ll_site;
-	struct cl_device	 *ll_cl;
-	/* Statistics */
-	struct ll_rw_extents_info ll_rw_extents_info;
-	int		       ll_extent_process_count;
-	struct ll_rw_process_info ll_rw_process_info[LL_PROCESS_HIST_MAX];
-	unsigned int	      ll_offset_process_count;
-	struct ll_rw_process_info ll_rw_offset_info[LL_OFFSET_HIST_MAX];
-	unsigned int	      ll_rw_offset_entry_count;
-	int		       ll_stats_track_id;
-	enum stats_track_type     ll_stats_track_type;
-	int		       ll_rw_stats_on;
-
-	/* metadata stat-ahead */
-	unsigned int	      ll_sa_max;     /* max statahead RPCs */
-	atomic_t		  ll_sa_total;   /* statahead thread started
-						  * count */
-	atomic_t		  ll_sa_wrong;   /* statahead thread stopped for
-						  * low hit ratio */
-	atomic_t		  ll_agl_total;  /* AGL thread started count */
-
-	dev_t		     ll_sdev_orig; /* save s_dev before assign for
-						 * clustered nfs */
-	struct rmtacl_ctl_table   ll_rct;
-	struct eacl_table	 ll_et;
-	__kernel_fsid_t		  ll_fsid;
-	struct kobject		 ll_kobj; /* sysfs object */
-	struct super_block	*ll_sb; /* struct super_block (for sysfs code)*/
-	struct completion	 ll_kobj_unregister;
-};
-
-struct ll_ra_read {
-	pgoff_t	     lrr_start;
-	pgoff_t	     lrr_count;
-	struct task_struct *lrr_reader;
-	struct list_head	  lrr_linkage;
-};
-
-/*
- * per file-descriptor read-ahead data.
- */
-struct ll_readahead_state {
-	spinlock_t  ras_lock;
-	/*
-	 * index of the last page that read(2) needed and that wasn't in the
-	 * cache. Used by ras_update() to detect seeks.
-	 *
-	 * XXX nikita: if access seeks into cached region, Lustre doesn't see
-	 * this.
-	 */
-	unsigned long   ras_last_readpage;
-	/*
-	 * number of pages read after last read-ahead window reset. As window
-	 * is reset on each seek, this is effectively a number of consecutive
-	 * accesses. Maybe ->ras_accessed_in_window is better name.
-	 *
-	 * XXX nikita: window is also reset (by ras_update()) when Lustre
-	 * believes that memory pressure evicts read-ahead pages. In that
-	 * case, it probably doesn't make sense to expand window to
-	 * PTLRPC_MAX_BRW_PAGES on the third access.
-	 */
-	unsigned long   ras_consecutive_pages;
-	/*
-	 * number of read requests after the last read-ahead window reset
-	 * As window is reset on each seek, this is effectively the number
-	 * on consecutive read request and is used to trigger read-ahead.
-	 */
-	unsigned long   ras_consecutive_requests;
-	/*
-	 * Parameters of current read-ahead window. Handled by
-	 * ras_update(). On the initial access to the file or after a seek,
-	 * window is reset to 0. After 3 consecutive accesses, window is
-	 * expanded to PTLRPC_MAX_BRW_PAGES. Afterwards, window is enlarged by
-	 * PTLRPC_MAX_BRW_PAGES chunks up to ->ra_max_pages.
-	 */
-	unsigned long   ras_window_start, ras_window_len;
-	/*
-	 * Where next read-ahead should start at. This lies within read-ahead
-	 * window. Read-ahead window is read in pieces rather than at once
-	 * because: 1. lustre limits total number of pages under read-ahead by
-	 * ->ra_max_pages (see ll_ra_count_get()), 2. client cannot read pages
-	 * not covered by DLM lock.
-	 */
-	unsigned long   ras_next_readahead;
-	/*
-	 * Total number of ll_file_read requests issued, reads originating
-	 * due to mmap are not counted in this total.  This value is used to
-	 * trigger full file read-ahead after multiple reads to a small file.
-	 */
-	unsigned long   ras_requests;
-	/*
-	 * Page index with respect to the current request, these value
-	 * will not be accurate when dealing with reads issued via mmap.
-	 */
-	unsigned long   ras_request_index;
-	/*
-	 * list of struct ll_ra_read's one per read(2) call current in
-	 * progress against this file descriptor. Used by read-ahead code,
-	 * protected by ->ras_lock.
-	 */
-	struct list_head      ras_read_beads;
-	/*
-	 * The following 3 items are used for detecting the stride I/O
-	 * mode.
-	 * In stride I/O mode,
-	 * ...............|-----data-----|****gap*****|--------|******|....
-	 *    offset      |-stride_pages-|-stride_gap-|
-	 * ras_stride_offset = offset;
-	 * ras_stride_length = stride_pages + stride_gap;
-	 * ras_stride_pages = stride_pages;
-	 * Note: all these three items are counted by pages.
-	 */
-	unsigned long   ras_stride_length;
-	unsigned long   ras_stride_pages;
-	pgoff_t	 ras_stride_offset;
-	/*
-	 * number of consecutive stride request count, and it is similar as
-	 * ras_consecutive_requests, but used for stride I/O mode.
-	 * Note: only more than 2 consecutive stride request are detected,
-	 * stride read-ahead will be enable
-	 */
-	unsigned long   ras_consecutive_stride_requests;
-};
-
-extern struct kmem_cache *ll_file_data_slab;
-struct lustre_handle;
-struct ll_file_data {
-	struct ll_readahead_state fd_ras;
-	struct ccc_grouplock fd_grouplock;
-	__u64 lfd_pos;
-	__u32 fd_flags;
-	fmode_t fd_omode;
-	/* openhandle if lease exists for this file.
-	 * Borrow lli->lli_och_mutex to protect assignment */
-	struct obd_client_handle *fd_lease_och;
-	struct obd_client_handle *fd_och;
-	struct file *fd_file;
-	/* Indicate whether need to report failure when close.
-	 * true: failure is known, not report again.
-	 * false: unknown failure, should report. */
-	bool fd_write_failed;
-};
-
-struct lov_stripe_md;
-
-extern spinlock_t inode_lock;
-
-extern struct dentry *llite_root;
-extern struct kset *llite_kset;
-
-static inline struct inode *ll_info2i(struct ll_inode_info *lli)
-{
-	return &lli->lli_vfs_inode;
-}
-
-__u32 ll_i2suppgid(struct inode *i);
-void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2);
-
-static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
-{
-#if BITS_PER_LONG == 32
-	return 1;
-#elif defined(CONFIG_COMPAT)
-	return unlikely(is_compat_task() || (sbi->ll_flags & LL_SBI_32BIT_API));
-#else
-	return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
-#endif
-}
-
-void ll_ra_read_in(struct file *f, struct ll_ra_read *rar);
-void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar);
-struct ll_ra_read *ll_ra_read_get(struct file *f);
-
-/* llite/lproc_llite.c */
-int ldebugfs_register_mountpoint(struct dentry *parent,
-				 struct super_block *sb, char *osc, char *mdc);
-void ldebugfs_unregister_mountpoint(struct ll_sb_info *sbi);
-void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count);
-void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars);
-void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
-		       struct ll_file_data *file, loff_t pos,
-		       size_t count, int rw);
-
-/* llite/dir.c */
-void ll_release_page(struct page *page, int remove);
-extern const struct file_operations ll_dir_operations;
-extern const struct inode_operations ll_dir_inode_operations;
-struct page *ll_get_dir_page(struct inode *dir, __u64 hash,
-			     struct ll_dir_chain *chain);
-int ll_dir_read(struct inode *inode, struct dir_context *ctx);
-
-int ll_get_mdt_idx(struct inode *inode);
-/* llite/namei.c */
-extern const struct inode_operations ll_special_inode_operations;
-
-int ll_objects_destroy(struct ptlrpc_request *request,
-		       struct inode *dir);
-struct inode *ll_iget(struct super_block *sb, ino_t hash,
-		      struct lustre_md *lic);
-int ll_md_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
-		       void *data, int flag);
-struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de);
-int ll_rmdir_entry(struct inode *dir, char *name, int namelen);
-
-/* llite/rw.c */
-int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to);
-int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to);
-int ll_writepage(struct page *page, struct writeback_control *wbc);
-int ll_writepages(struct address_space *, struct writeback_control *wbc);
-int ll_readpage(struct file *file, struct page *page);
-void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras);
-int ll_readahead(const struct lu_env *env, struct cl_io *io,
-		 struct ll_readahead_state *ras, struct address_space *mapping,
-		 struct cl_page_list *queue, int flags);
-
-extern const struct address_space_operations ll_aops;
-
-/* llite/file.c */
-extern struct file_operations ll_file_operations;
-extern struct file_operations ll_file_operations_flock;
-extern struct file_operations ll_file_operations_noflock;
-extern struct inode_operations ll_file_inode_operations;
-int ll_have_md_lock(struct inode *inode, __u64 *bits,
-		    ldlm_mode_t l_req_mode);
-ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
-			    struct lustre_handle *lockh, __u64 flags,
-			    ldlm_mode_t mode);
-int ll_file_open(struct inode *inode, struct file *file);
-int ll_file_release(struct inode *inode, struct file *file);
-int ll_glimpse_ioctl(struct ll_sb_info *sbi,
-		     struct lov_stripe_md *lsm, lstat_t *st);
-void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch);
-int ll_release_openhandle(struct inode *, struct lookup_intent *);
-int ll_md_real_close(struct inode *inode, fmode_t fmode);
-void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
-		      struct obd_client_handle **och, unsigned long flags);
-void ll_done_writing_attr(struct inode *inode, struct md_op_data *op_data);
-int ll_som_update(struct inode *inode, struct md_op_data *op_data);
-int ll_inode_getattr(struct inode *inode, struct obdo *obdo,
-		     __u64 ioepoch, int sync);
-void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data,
-			  struct lustre_handle *fh);
-int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
-struct posix_acl *ll_get_acl(struct inode *inode, int type);
-
-int ll_inode_permission(struct inode *inode, int mask);
-
-int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry,
-			     int flags, struct lov_user_md *lum,
-			     int lum_size);
-int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
-			     struct lov_mds_md **lmm, int *lmm_size,
-			     struct ptlrpc_request **request);
-int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
-		     int set_default);
-int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
-		     int *lmm_size, struct ptlrpc_request **request);
-int ll_fsync(struct file *file, loff_t start, loff_t end, int data);
-int ll_merge_lvb(const struct lu_env *env, struct inode *inode);
-int ll_fid2path(struct inode *inode, void __user *arg);
-int ll_data_version(struct inode *inode, __u64 *data_version, int extent_lock);
-int ll_hsm_release(struct inode *inode);
-
-/* llite/dcache.c */
-
-int ll_d_init(struct dentry *de);
-extern const struct dentry_operations ll_d_ops;
-void ll_intent_drop_lock(struct lookup_intent *);
-void ll_intent_release(struct lookup_intent *);
-void ll_invalidate_aliases(struct inode *);
-void ll_lookup_finish_locks(struct lookup_intent *it, struct inode *inode);
-int ll_revalidate_it_finish(struct ptlrpc_request *request,
-			    struct lookup_intent *it, struct inode *inode);
-
-/* llite/llite_lib.c */
-extern struct super_operations lustre_super_operations;
-
-void ll_lli_init(struct ll_inode_info *lli);
-int ll_fill_super(struct super_block *sb, struct vfsmount *mnt);
-void ll_put_super(struct super_block *sb);
-void ll_kill_super(struct super_block *sb);
-struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock);
-void ll_clear_inode(struct inode *inode);
-int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import);
-int ll_setattr(struct dentry *de, struct iattr *attr);
-int ll_statfs(struct dentry *de, struct kstatfs *sfs);
-int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
-		       __u64 max_age, __u32 flags);
-void ll_update_inode(struct inode *inode, struct lustre_md *md);
-void ll_read_inode2(struct inode *inode, void *opaque);
-void ll_delete_inode(struct inode *inode);
-int ll_iocontrol(struct inode *inode, struct file *file,
-		 unsigned int cmd, unsigned long arg);
-int ll_flush_ctx(struct inode *inode);
-void ll_umount_begin(struct super_block *sb);
-int ll_remount_fs(struct super_block *sb, int *flags, char *data);
-int ll_show_options(struct seq_file *seq, struct dentry *dentry);
-void ll_dirty_page_discard_warn(struct page *page, int ioret);
-int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
-		  struct super_block *, struct lookup_intent *);
-int ll_obd_statfs(struct inode *inode, void *arg);
-int ll_get_max_mdsize(struct ll_sb_info *sbi, int *max_mdsize);
-int ll_get_default_mdsize(struct ll_sb_info *sbi, int *default_mdsize);
-int ll_get_max_cookiesize(struct ll_sb_info *sbi, int *max_cookiesize);
-int ll_get_default_cookiesize(struct ll_sb_info *sbi, int *default_cookiesize);
-int ll_process_config(struct lustre_cfg *lcfg);
-struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
-				      struct inode *i1, struct inode *i2,
-				      const char *name, int namelen,
-				      int mode, __u32 opc, void *data);
-void ll_finish_md_op_data(struct md_op_data *op_data);
-int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg);
-char *ll_get_fsname(struct super_block *sb, char *buf, int buflen);
-
-/* llite/llite_nfs.c */
-extern struct export_operations lustre_export_operations;
-__u32 get_uuid2int(const char *name, int len);
-void get_uuid2fsid(const char *name, int len, __kernel_fsid_t *fsid);
-struct inode *search_inode_for_lustre(struct super_block *sb,
-				      const struct lu_fid *fid);
-
-/* llite/symlink.c */
-extern struct inode_operations ll_fast_symlink_inode_operations;
-
-/* llite/llite_close.c */
-struct ll_close_queue {
-	spinlock_t		lcq_lock;
-	struct list_head		lcq_head;
-	wait_queue_head_t		lcq_waitq;
-	struct completion	lcq_comp;
-	atomic_t		lcq_stop;
-};
-
-struct ccc_object *cl_inode2ccc(struct inode *inode);
-
-
-void vvp_write_pending (struct ccc_object *club, struct ccc_page *page);
-void vvp_write_complete(struct ccc_object *club, struct ccc_page *page);
-
-/* specific architecture can implement only part of this list */
-enum vvp_io_subtype {
-	/** normal IO */
-	IO_NORMAL,
-	/** io started from splice_{read|write} */
-	IO_SPLICE
-};
-
-/* IO subtypes */
-struct vvp_io {
-	/** io subtype */
-	enum vvp_io_subtype    cui_io_subtype;
-
-	union {
-		struct {
-			struct pipe_inode_info *cui_pipe;
-			unsigned int	    cui_flags;
-		} splice;
-		struct vvp_fault_io {
-			/**
-			 * Inode modification time that is checked across DLM
-			 * lock request.
-			 */
-			time_t		 ft_mtime;
-			struct vm_area_struct *ft_vma;
-			/**
-			 *  locked page returned from vvp_io
-			 */
-			struct page	    *ft_vmpage;
-			struct vm_fault_api {
-				/**
-				 * kernel fault info
-				 */
-				struct vm_fault *ft_vmf;
-				/**
-				 * fault API used bitflags for return code.
-				 */
-				unsigned int    ft_flags;
-				/**
-				 * check that flags are from filemap_fault
-				 */
-				bool		ft_flags_valid;
-			} fault;
-		} fault;
-	} u;
-	/**
-	 * Read-ahead state used by read and page-fault IO contexts.
-	 */
-	struct ll_ra_read    cui_bead;
-	/**
-	 * Set when cui_bead has been initialized.
-	 */
-	int		  cui_ra_window_set;
-};
-
-/**
- * IO arguments for various VFS I/O interfaces.
- */
-struct vvp_io_args {
-	/** normal/splice */
-	enum vvp_io_subtype via_io_subtype;
-
-	union {
-		struct {
-			struct kiocb      *via_iocb;
-			struct iov_iter   *via_iter;
-		} normal;
-		struct {
-			struct pipe_inode_info  *via_pipe;
-			unsigned int       via_flags;
-		} splice;
-	} u;
-};
-
-struct ll_cl_context {
-	void	   *lcc_cookie;
-	struct cl_io   *lcc_io;
-	struct cl_page *lcc_page;
-	struct lu_env  *lcc_env;
-	int	     lcc_refcheck;
-};
-
-struct vvp_thread_info {
-	struct vvp_io_args   vti_args;
-	struct ra_io_arg     vti_ria;
-	struct ll_cl_context vti_io_ctx;
-};
-
-static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env)
-{
-	extern struct lu_context_key vvp_key;
-	struct vvp_thread_info      *info;
-
-	info = lu_context_key_get(&env->le_ctx, &vvp_key);
-	LASSERT(info != NULL);
-	return info;
-}
-
-static inline struct vvp_io_args *vvp_env_args(const struct lu_env *env,
-					       enum vvp_io_subtype type)
-{
-	struct vvp_io_args *ret = &vvp_env_info(env)->vti_args;
-
-	ret->via_io_subtype = type;
-
-	return ret;
-}
-
-struct vvp_session {
-	struct vvp_io	 vs_ios;
-};
-
-static inline struct vvp_session *vvp_env_session(const struct lu_env *env)
-{
-	extern struct lu_context_key vvp_session_key;
-	struct vvp_session *ses;
-
-	ses = lu_context_key_get(env->le_ses, &vvp_session_key);
-	LASSERT(ses != NULL);
-	return ses;
-}
-
-static inline struct vvp_io *vvp_env_io(const struct lu_env *env)
-{
-	return &vvp_env_session(env)->vs_ios;
-}
-
-int vvp_global_init(void);
-void vvp_global_fini(void);
-
-void ll_queue_done_writing(struct inode *inode, unsigned long flags);
-void ll_close_thread_shutdown(struct ll_close_queue *lcq);
-int ll_close_thread_start(struct ll_close_queue **lcq_ret);
-
-/* llite/llite_mmap.c */
-
-int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last);
-int ll_file_mmap(struct file *file, struct vm_area_struct *vma);
-void policy_from_vma(ldlm_policy_data_t *policy,
-		struct vm_area_struct *vma, unsigned long addr, size_t count);
-struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
-			       size_t count);
-
-static inline void ll_invalidate_page(struct page *vmpage)
-{
-	struct address_space *mapping = vmpage->mapping;
-	loff_t offset = vmpage->index << PAGE_CACHE_SHIFT;
-
-	LASSERT(PageLocked(vmpage));
-	if (mapping == NULL)
-		return;
-
-	ll_teardown_mmaps(mapping, offset, offset + PAGE_CACHE_SIZE);
-	truncate_complete_page(mapping, vmpage);
-}
-
-#define    ll_s2sbi(sb)	(s2lsi(sb)->lsi_llsbi)
-
-/* don't need an addref as the sb_info should be holding one */
-static inline struct obd_export *ll_s2dtexp(struct super_block *sb)
-{
-	return ll_s2sbi(sb)->ll_dt_exp;
-}
-
-/* don't need an addref as the sb_info should be holding one */
-static inline struct obd_export *ll_s2mdexp(struct super_block *sb)
-{
-	return ll_s2sbi(sb)->ll_md_exp;
-}
-
-static inline struct client_obd *sbi2mdc(struct ll_sb_info *sbi)
-{
-	struct obd_device *obd = sbi->ll_md_exp->exp_obd;
-	if (obd == NULL)
-		LBUG();
-	return &obd->u.cli;
-}
-
-/* FIXME: replace the name of this with LL_SB to conform to kernel stuff */
-static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
-{
-	return ll_s2sbi(inode->i_sb);
-}
-
-static inline struct obd_export *ll_i2dtexp(struct inode *inode)
-{
-	return ll_s2dtexp(inode->i_sb);
-}
-
-static inline struct obd_export *ll_i2mdexp(struct inode *inode)
-{
-	return ll_s2mdexp(inode->i_sb);
-}
-
-static inline struct lu_fid *ll_inode2fid(struct inode *inode)
-{
-	struct lu_fid *fid;
-
-	LASSERT(inode != NULL);
-	fid = &ll_i2info(inode)->lli_fid;
-
-	return fid;
-}
-
-static inline __u64 ll_file_maxbytes(struct inode *inode)
-{
-	return ll_i2info(inode)->lli_maxbytes;
-}
-
-/* llite/xattr.c */
-int ll_setxattr(struct dentry *dentry, const char *name,
-		const void *value, size_t size, int flags);
-ssize_t ll_getxattr(struct dentry *dentry, const char *name,
-		    void *buffer, size_t size);
-ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size);
-int ll_removexattr(struct dentry *dentry, const char *name);
-
-/* llite/remote_perm.c */
-extern struct kmem_cache *ll_remote_perm_cachep;
-extern struct kmem_cache *ll_rmtperm_hash_cachep;
-
-void free_rmtperm_hash(struct hlist_head *hash);
-int ll_update_remote_perm(struct inode *inode, struct mdt_remote_perm *perm);
-int lustre_check_remote_perm(struct inode *inode, int mask);
-
-/* llite/llite_capa.c */
-extern struct timer_list ll_capa_timer;
-
-int ll_capa_thread_start(void);
-void ll_capa_thread_stop(void);
-void ll_capa_timer_callback(unsigned long unused);
-
-struct obd_capa *ll_add_capa(struct inode *inode, struct obd_capa *ocapa);
-
-void ll_capa_open(struct inode *inode);
-void ll_capa_close(struct inode *inode);
-
-struct obd_capa *ll_mdscapa_get(struct inode *inode);
-struct obd_capa *ll_osscapa_get(struct inode *inode, __u64 opc);
-
-void ll_truncate_free_capa(struct obd_capa *ocapa);
-void ll_clear_inode_capas(struct inode *inode);
-void ll_print_capa_stat(struct ll_sb_info *sbi);
-
-/* llite/llite_cl.c */
-extern struct lu_device_type vvp_device_type;
-
-/**
- * Common IO arguments for various VFS I/O interfaces.
- */
-int cl_sb_init(struct super_block *sb);
-int cl_sb_fini(struct super_block *sb);
-void ll_io_init(struct cl_io *io, const struct file *file, int write);
-
-void ras_update(struct ll_sb_info *sbi, struct inode *inode,
-		struct ll_readahead_state *ras, unsigned long index,
-		unsigned hit);
-void ll_ra_count_put(struct ll_sb_info *sbi, unsigned long len);
-void ll_ra_stats_inc(struct address_space *mapping, enum ra_stat which);
-
-/* llite/llite_rmtacl.c */
-#ifdef CONFIG_FS_POSIX_ACL
-struct eacl_entry {
-	struct list_head	    ee_list;
-	pid_t		 ee_key; /* hash key */
-	struct lu_fid	 ee_fid;
-	int		   ee_type; /* ACL type for ACCESS or DEFAULT */
-	ext_acl_xattr_header *ee_acl;
-};
-
-u64 rce_ops2valid(int ops);
-struct rmtacl_ctl_entry *rct_search(struct rmtacl_ctl_table *rct, pid_t key);
-int rct_add(struct rmtacl_ctl_table *rct, pid_t key, int ops);
-int rct_del(struct rmtacl_ctl_table *rct, pid_t key);
-void rct_init(struct rmtacl_ctl_table *rct);
-void rct_fini(struct rmtacl_ctl_table *rct);
-
-void ee_free(struct eacl_entry *ee);
-int ee_add(struct eacl_table *et, pid_t key, struct lu_fid *fid, int type,
-	   ext_acl_xattr_header *header);
-struct eacl_entry *et_search_del(struct eacl_table *et, pid_t key,
-				 struct lu_fid *fid, int type);
-void et_search_free(struct eacl_table *et, pid_t key);
-void et_init(struct eacl_table *et);
-void et_fini(struct eacl_table *et);
-#else
-static inline u64 rce_ops2valid(int ops)
-{
-	return 0;
-}
-#endif
-
-/* statahead.c */
-
-#define LL_SA_RPC_MIN	   2
-#define LL_SA_RPC_DEF	   32
-#define LL_SA_RPC_MAX	   8192
-
-#define LL_SA_CACHE_BIT	 5
-#define LL_SA_CACHE_SIZE	(1 << LL_SA_CACHE_BIT)
-#define LL_SA_CACHE_MASK	(LL_SA_CACHE_SIZE - 1)
-
-/* per inode struct, for dir only */
-struct ll_statahead_info {
-	struct inode	   *sai_inode;
-	atomic_t	    sai_refcount;   /* when access this struct, hold
-						 * refcount */
-	unsigned int	    sai_generation; /* generation for statahead */
-	unsigned int	    sai_max;	/* max ahead of lookup */
-	__u64		   sai_sent;       /* stat requests sent count */
-	__u64		   sai_replied;    /* stat requests which received
-						 * reply */
-	__u64		   sai_index;      /* index of statahead entry */
-	__u64		   sai_index_wait; /* index of entry which is the
-						 * caller is waiting for */
-	__u64		   sai_hit;	/* hit count */
-	__u64		   sai_miss;       /* miss count:
-						 * for "ls -al" case, it includes
-						 * hidden dentry miss;
-						 * for "ls -l" case, it does not
-						 * include hidden dentry miss.
-						 * "sai_miss_hidden" is used for
-						 * the later case.
-						 */
-	unsigned int	    sai_consecutive_miss; /* consecutive miss */
-	unsigned int	    sai_miss_hidden;/* "ls -al", but first dentry
-						 * is not a hidden one */
-	unsigned int	    sai_skip_hidden;/* skipped hidden dentry count */
-	unsigned int	    sai_ls_all:1,   /* "ls -al", do stat-ahead for
-						 * hidden entries */
-				sai_agl_valid:1;/* AGL is valid for the dir */
-	wait_queue_head_t	     sai_waitq;      /* stat-ahead wait queue */
-	struct ptlrpc_thread    sai_thread;     /* stat-ahead thread */
-	struct ptlrpc_thread    sai_agl_thread; /* AGL thread */
-	struct list_head	      sai_entries;    /* entry list */
-	struct list_head	      sai_entries_received; /* entries returned */
-	struct list_head	      sai_entries_stated;   /* entries stated */
-	struct list_head	      sai_entries_agl; /* AGL entries to be sent */
-	struct list_head	      sai_cache[LL_SA_CACHE_SIZE];
-	spinlock_t		sai_cache_lock[LL_SA_CACHE_SIZE];
-	atomic_t		sai_cache_count; /* entry count in cache */
-};
-
-int do_statahead_enter(struct inode *dir, struct dentry **dentry,
-		       int only_unplug);
-void ll_stop_statahead(struct inode *dir, void *key);
-
-static inline int ll_glimpse_size(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	int rc;
-
-	down_read(&lli->lli_glimpse_sem);
-	rc = cl_glimpse_size(inode);
-	lli->lli_glimpse_time = cfs_time_current();
-	up_read(&lli->lli_glimpse_sem);
-	return rc;
-}
-
-static inline void
-ll_statahead_mark(struct inode *dir, struct dentry *dentry)
-{
-	struct ll_inode_info     *lli = ll_i2info(dir);
-	struct ll_statahead_info *sai = lli->lli_sai;
-	struct ll_dentry_data    *ldd = ll_d2d(dentry);
-
-	/* not the same process, don't mark */
-	if (lli->lli_opendir_pid != current_pid())
-		return;
-
-	LASSERT(ldd != NULL);
-	if (sai != NULL)
-		ldd->lld_sa_generation = sai->sai_generation;
-}
-
-static inline int
-d_need_statahead(struct inode *dir, struct dentry *dentryp)
-{
-	struct ll_inode_info  *lli;
-	struct ll_dentry_data *ldd;
-
-	if (ll_i2sbi(dir)->ll_sa_max == 0)
-		return -EAGAIN;
-
-	lli = ll_i2info(dir);
-	/* not the same process, don't statahead */
-	if (lli->lli_opendir_pid != current_pid())
-		return -EAGAIN;
-
-	/* statahead has been stopped */
-	if (lli->lli_opendir_key == NULL)
-		return -EAGAIN;
-
-	ldd = ll_d2d(dentryp);
-	/*
-	 * When stats a dentry, the system trigger more than once "revalidate"
-	 * or "lookup", for "getattr", for "getxattr", and maybe for others.
-	 * Under patchless client mode, the operation intent is not accurate,
-	 * which maybe misguide the statahead thread. For example:
-	 * The "revalidate" call for "getattr" and "getxattr" of a dentry maybe
-	 * have the same operation intent -- "IT_GETATTR".
-	 * In fact, one dentry should has only one chance to interact with the
-	 * statahead thread, otherwise the statahead windows will be confused.
-	 * The solution is as following:
-	 * Assign "lld_sa_generation" with "sai_generation" when a dentry
-	 * "IT_GETATTR" for the first time, and the subsequent "IT_GETATTR"
-	 * will bypass interacting with statahead thread for checking:
-	 * "lld_sa_generation == lli_sai->sai_generation"
-	 */
-	if (ldd && lli->lli_sai &&
-	    ldd->lld_sa_generation == lli->lli_sai->sai_generation)
-		return -EAGAIN;
-
-	return 1;
-}
-
-static inline int
-ll_statahead_enter(struct inode *dir, struct dentry **dentryp, int only_unplug)
-{
-	int ret;
-
-	ret = d_need_statahead(dir, *dentryp);
-	if (ret <= 0)
-		return ret;
-
-	return do_statahead_enter(dir, dentryp, only_unplug);
-}
-
-/* llite ioctl register support routine */
-enum llioc_iter {
-	LLIOC_CONT = 0,
-	LLIOC_STOP
-};
-
-#define LLIOC_MAX_CMD	   256
-
-/*
- * Rules to write a callback function:
- *
- * Parameters:
- *  @magic: Dynamic ioctl call routine will feed this value with the pointer
- *      returned to ll_iocontrol_register.  Callback functions should use this
- *      data to check the potential collasion of ioctl cmd. If collasion is
- *      found, callback function should return LLIOC_CONT.
- *  @rcp: The result of ioctl command.
- *
- *  Return values:
- *      If @magic matches the pointer returned by ll_iocontrol_data, the
- *      callback should return LLIOC_STOP; return LLIOC_STOP otherwise.
- */
-typedef enum llioc_iter (*llioc_callback_t)(struct inode *inode,
-		struct file *file, unsigned int cmd, unsigned long arg,
-		void *magic, int *rcp);
-
-/* export functions */
-/* Register ioctl block dynamatically for a regular file.
- *
- * @cmd: the array of ioctl command set
- * @count: number of commands in the @cmd
- * @cb: callback function, it will be called if an ioctl command is found to
- *      belong to the command list @cmd.
- *
- * Return value:
- *      A magic pointer will be returned if success;
- *      otherwise, NULL will be returned.
- * */
-void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd);
-void ll_iocontrol_unregister(void *magic);
-
-
-/* lclient compat stuff */
-#define cl_inode_info ll_inode_info
-#define cl_i2info(info) ll_i2info(info)
-#define cl_inode_mode(inode) ((inode)->i_mode)
-#define cl_i2sbi ll_i2sbi
-
-static inline struct ll_file_data *cl_iattr2fd(struct inode *inode,
-					       const struct iattr *attr)
-{
-	LASSERT(attr->ia_valid & ATTR_FILE);
-	return LUSTRE_FPRIVATE(attr->ia_file);
-}
-
-static inline void cl_isize_lock(struct inode *inode)
-{
-	ll_inode_size_lock(inode);
-}
-
-static inline void cl_isize_unlock(struct inode *inode)
-{
-	ll_inode_size_unlock(inode);
-}
-
-static inline void cl_isize_write_nolock(struct inode *inode, loff_t kms)
-{
-	LASSERT(mutex_is_locked(&ll_i2info(inode)->lli_size_mutex));
-	i_size_write(inode, kms);
-}
-
-static inline void cl_isize_write(struct inode *inode, loff_t kms)
-{
-	ll_inode_size_lock(inode);
-	i_size_write(inode, kms);
-	ll_inode_size_unlock(inode);
-}
-
-#define cl_isize_read(inode)	     i_size_read(inode)
-
-static inline int cl_merge_lvb(const struct lu_env *env, struct inode *inode)
-{
-	return ll_merge_lvb(env, inode);
-}
-
-#define cl_inode_atime(inode) LTIME_S((inode)->i_atime)
-#define cl_inode_ctime(inode) LTIME_S((inode)->i_ctime)
-#define cl_inode_mtime(inode) LTIME_S((inode)->i_mtime)
-
-struct obd_capa *cl_capa_lookup(struct inode *inode, enum cl_req_type crt);
-
-int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end,
-		       enum cl_fsync_mode mode, int ignore_layout);
-
-/** direct write pages */
-struct ll_dio_pages {
-	/** page array to be written. we don't support
-	 * partial pages except the last one. */
-	struct page **ldp_pages;
-	/* offset of each page */
-	loff_t       *ldp_offsets;
-	/** if ldp_offsets is NULL, it means a sequential
-	 * pages to be written, then this is the file offset
-	 * of the * first page. */
-	loff_t	ldp_start_offset;
-	/** how many bytes are to be written. */
-	size_t	ldp_size;
-	/** # of pages in the array. */
-	int	   ldp_nr;
-};
-
-static inline void cl_stats_tally(struct cl_device *dev, enum cl_req_type crt,
-				  int rc)
-{
-	int opc = (crt == CRT_READ) ? LPROC_LL_OSC_READ :
-				      LPROC_LL_OSC_WRITE;
-
-	ll_stats_ops_tally(ll_s2sbi(cl2ccc_dev(dev)->cdv_sb), opc, rc);
-}
-
-ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
-			   int rw, struct inode *inode,
-			   struct ll_dio_pages *pv);
-
-static inline int ll_file_nolock(const struct file *file)
-{
-	struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-	struct inode *inode = file_inode(file);
-
-	LASSERT(fd != NULL);
-	return ((fd->fd_flags & LL_FILE_IGNORE_LOCK) ||
-		(ll_i2sbi(inode)->ll_flags & LL_SBI_NOLCK));
-}
-
-static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
-				    struct lookup_intent *it, __u64 *bits)
-{
-	if (!it->d.lustre.it_lock_set) {
-		struct lustre_handle handle;
-
-		/* If this inode is a remote object, it will get two
-		 * separate locks in different namespaces, Master MDT,
-		 * where the name entry is, will grant LOOKUP lock,
-		 * remote MDT, where the object is, will grant
-		 * UPDATE|PERM lock. The inode will be attached to both
-		 * LOOKUP and PERM locks, so revoking either locks will
-		 * case the dcache being cleared */
-		if (it->d.lustre.it_remote_lock_mode) {
-			handle.cookie = it->d.lustre.it_remote_lock_handle;
-			CDEBUG(D_DLMTRACE, "setting l_data to inode %p(%lu/%u) for remote lock %#llx\n",
-			       inode,
-			       inode->i_ino, inode->i_generation,
-			       handle.cookie);
-			md_set_lock_data(exp, &handle.cookie, inode, NULL);
-		}
-
-		handle.cookie = it->d.lustre.it_lock_handle;
-
-		CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u) for lock %#llx\n",
-		       inode, inode->i_ino,
-		       inode->i_generation, handle.cookie);
-
-		md_set_lock_data(exp, &handle.cookie, inode,
-				 &it->d.lustre.it_lock_bits);
-		it->d.lustre.it_lock_set = 1;
-	}
-
-	if (bits != NULL)
-		*bits = it->d.lustre.it_lock_bits;
-}
-
-static inline void ll_lock_dcache(struct inode *inode)
-{
-	spin_lock(&inode->i_lock);
-}
-
-static inline void ll_unlock_dcache(struct inode *inode)
-{
-	spin_unlock(&inode->i_lock);
-}
-
-static inline int d_lustre_invalid(const struct dentry *dentry)
-{
-	struct ll_dentry_data *lld = ll_d2d(dentry);
-
-	return (lld == NULL) || lld->lld_invalid;
-}
-
-static inline void __d_lustre_invalidate(struct dentry *dentry)
-{
-	struct ll_dentry_data *lld = ll_d2d(dentry);
-
-	if (lld != NULL)
-		lld->lld_invalid = 1;
-}
-
-/*
- * Mark dentry INVALID, if dentry refcount is zero (this is normally case for
- * ll_md_blocking_ast), unhash this dentry, and let dcache to reclaim it later;
- * else dput() of the last refcount will unhash this dentry and kill it.
- */
-static inline void d_lustre_invalidate(struct dentry *dentry, int nested)
-{
-	CDEBUG(D_DENTRY, "invalidate dentry %pd (%p) parent %p inode %p refc %d\n",
-	       dentry, dentry,
-	       dentry->d_parent, d_inode(dentry), d_count(dentry));
-
-	spin_lock_nested(&dentry->d_lock,
-			 nested ? DENTRY_D_LOCK_NESTED : DENTRY_D_LOCK_NORMAL);
-	__d_lustre_invalidate(dentry);
-	if (d_count(dentry) == 0)
-		__d_drop(dentry);
-	spin_unlock(&dentry->d_lock);
-}
-
-static inline void d_lustre_revalidate(struct dentry *dentry)
-{
-	spin_lock(&dentry->d_lock);
-	LASSERT(ll_d2d(dentry) != NULL);
-	ll_d2d(dentry)->lld_invalid = 0;
-	spin_unlock(&dentry->d_lock);
-}
-
-enum {
-	LL_LAYOUT_GEN_NONE  = ((__u32)-2),	/* layout lock was cancelled */
-	LL_LAYOUT_GEN_EMPTY = ((__u32)-1)	/* for empty layout */
-};
-
-int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf);
-int ll_layout_refresh(struct inode *inode, __u32 *gen);
-int ll_layout_restore(struct inode *inode);
-
-int ll_xattr_init(void);
-void ll_xattr_fini(void);
-
-#endif /* LLITE_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
deleted file mode 100644
index b4ed6c89af3d..000000000000
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ /dev/null
@@ -1,2329 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/llite_lib.c
- *
- * Lustre Light Super operations
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include <linux/module.h>
-#include <linux/statfs.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-
-#include "../include/lustre_lite.h"
-#include "../include/lustre_ha.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre_disk.h"
-#include "../include/lustre_param.h"
-#include "../include/lustre_log.h"
-#include "../include/cl_object.h"
-#include "../include/obd_cksum.h"
-#include "llite_internal.h"
-
-struct kmem_cache *ll_file_data_slab;
-struct dentry *llite_root;
-struct kset *llite_kset;
-
-#ifndef log2
-#define log2(n) ffz(~(n))
-#endif
-
-static struct ll_sb_info *ll_init_sbi(struct super_block *sb)
-{
-	struct ll_sb_info *sbi = NULL;
-	unsigned long pages;
-	unsigned long lru_page_max;
-	struct sysinfo si;
-	class_uuid_t uuid;
-	int i;
-
-	sbi = kzalloc(sizeof(*sbi), GFP_NOFS);
-	if (!sbi)
-		return NULL;
-
-	spin_lock_init(&sbi->ll_lock);
-	mutex_init(&sbi->ll_lco.lco_lock);
-	spin_lock_init(&sbi->ll_pp_extent_lock);
-	spin_lock_init(&sbi->ll_process_lock);
-	sbi->ll_rw_stats_on = 0;
-
-	si_meminfo(&si);
-	pages = si.totalram - si.totalhigh;
-	if (pages >> (20 - PAGE_CACHE_SHIFT) < 512)
-		lru_page_max = pages / 2;
-	else
-		lru_page_max = (pages / 4) * 3;
-
-	/* initialize lru data */
-	atomic_set(&sbi->ll_cache.ccc_users, 0);
-	sbi->ll_cache.ccc_lru_max = lru_page_max;
-	atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max);
-	spin_lock_init(&sbi->ll_cache.ccc_lru_lock);
-	INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru);
-
-	sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
-					   SBI_DEFAULT_READAHEAD_MAX);
-	sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
-	sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
-					   SBI_DEFAULT_READAHEAD_WHOLE_MAX;
-	INIT_LIST_HEAD(&sbi->ll_conn_chain);
-	INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
-
-	ll_generate_random_uuid(uuid);
-	class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
-	CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
-
-	sbi->ll_flags |= LL_SBI_VERBOSE;
-	sbi->ll_flags |= LL_SBI_CHECKSUM;
-
-	sbi->ll_flags |= LL_SBI_LRU_RESIZE;
-
-	for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
-		spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].
-			       pp_r_hist.oh_lock);
-		spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].
-			       pp_w_hist.oh_lock);
-	}
-
-	/* metadata statahead is enabled by default */
-	sbi->ll_sa_max = LL_SA_RPC_DEF;
-	atomic_set(&sbi->ll_sa_total, 0);
-	atomic_set(&sbi->ll_sa_wrong, 0);
-	atomic_set(&sbi->ll_agl_total, 0);
-	sbi->ll_flags |= LL_SBI_AGL_ENABLED;
-
-	sbi->ll_sb = sb;
-
-	return sbi;
-}
-
-static void ll_free_sbi(struct super_block *sb)
-{
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-
-	kfree(sbi);
-}
-
-static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
-				    struct vfsmount *mnt)
-{
-	struct inode *root = NULL;
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	struct obd_device *obd;
-	struct obd_capa *oc = NULL;
-	struct obd_statfs *osfs = NULL;
-	struct ptlrpc_request *request = NULL;
-	struct obd_connect_data *data = NULL;
-	struct obd_uuid *uuid;
-	struct md_op_data *op_data;
-	struct lustre_md lmd;
-	u64 valid;
-	int size, err, checksum;
-
-	obd = class_name2obd(md);
-	if (!obd) {
-		CERROR("MD %s: not setup or attached\n", md);
-		return -EINVAL;
-	}
-
-	data = kzalloc(sizeof(*data), GFP_NOFS);
-	if (!data)
-		return -ENOMEM;
-
-	osfs = kzalloc(sizeof(*osfs), GFP_NOFS);
-	if (!osfs) {
-		kfree(data);
-		return -ENOMEM;
-	}
-
-	if (llite_root != NULL) {
-		err = ldebugfs_register_mountpoint(llite_root, sb, dt, md);
-		if (err < 0)
-			CERROR("could not register mount in <debugfs>/lustre/llite\n");
-	}
-
-	/* indicate the features supported by this client */
-	data->ocd_connect_flags = OBD_CONNECT_IBITS    | OBD_CONNECT_NODEVOH  |
-				  OBD_CONNECT_ATTRFID  |
-				  OBD_CONNECT_VERSION  | OBD_CONNECT_BRW_SIZE |
-				  OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA |
-				  OBD_CONNECT_CANCELSET | OBD_CONNECT_FID     |
-				  OBD_CONNECT_AT       | OBD_CONNECT_LOV_V3   |
-				  OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR    |
-				  OBD_CONNECT_FULL20   | OBD_CONNECT_64BITHASH|
-				  OBD_CONNECT_EINPROGRESS |
-				  OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
-				  OBD_CONNECT_LAYOUTLOCK |
-				  OBD_CONNECT_PINGLESS |
-				  OBD_CONNECT_MAX_EASIZE |
-				  OBD_CONNECT_FLOCK_DEAD |
-				  OBD_CONNECT_DISP_STRIPE;
-
-	if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
-		data->ocd_connect_flags |= OBD_CONNECT_SOM;
-
-	if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
-		data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
-#ifdef CONFIG_FS_POSIX_ACL
-	data->ocd_connect_flags |= OBD_CONNECT_ACL | OBD_CONNECT_UMASK;
-#endif
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT))
-		/* flag mdc connection as lightweight, only used for test
-		 * purpose, use with care */
-		data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT;
-
-	data->ocd_ibits_known = MDS_INODELOCK_FULL;
-	data->ocd_version = LUSTRE_VERSION_CODE;
-
-	if (sb->s_flags & MS_RDONLY)
-		data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
-	if (sbi->ll_flags & LL_SBI_USER_XATTR)
-		data->ocd_connect_flags |= OBD_CONNECT_XATTR;
-
-	if (sbi->ll_flags & LL_SBI_FLOCK)
-		sbi->ll_fop = &ll_file_operations_flock;
-	else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
-		sbi->ll_fop = &ll_file_operations;
-	else
-		sbi->ll_fop = &ll_file_operations_noflock;
-
-	/* real client */
-	data->ocd_connect_flags |= OBD_CONNECT_REAL;
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
-		data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
-
-	data->ocd_brw_size = MD_MAX_BRW_SIZE;
-
-	err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid,
-			  data, NULL);
-	if (err == -EBUSY) {
-		LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n",
-				   md);
-		goto out;
-	} else if (err) {
-		CERROR("cannot connect to %s: rc = %d\n", md, err);
-		goto out;
-	}
-
-	sbi->ll_md_exp->exp_connect_data = *data;
-
-	err = obd_fid_init(sbi->ll_md_exp->exp_obd, sbi->ll_md_exp,
-			   LUSTRE_SEQ_METADATA);
-	if (err) {
-		CERROR("%s: Can't init metadata layer FID infrastructure, rc = %d\n",
-		       sbi->ll_md_exp->exp_obd->obd_name, err);
-		goto out_md;
-	}
-
-	/* For mount, we only need fs info from MDT0, and also in DNE, it
-	 * can make sure the client can be mounted as long as MDT0 is
-	 * available */
-	err = obd_statfs(NULL, sbi->ll_md_exp, osfs,
-			cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-			OBD_STATFS_FOR_MDT0);
-	if (err)
-		goto out_md_fid;
-
-	/* This needs to be after statfs to ensure connect has finished.
-	 * Note that "data" does NOT contain the valid connect reply.
-	 * If connecting to a 1.8 server there will be no LMV device, so
-	 * we can access the MDC export directly and exp_connect_flags will
-	 * be non-zero, but if accessing an upgraded 2.1 server it will
-	 * have the correct flags filled in.
-	 * XXX: fill in the LMV exp_connect_flags from MDC(s). */
-	valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD;
-	if (exp_connect_flags(sbi->ll_md_exp) != 0 &&
-	    valid != CLIENT_CONNECT_MDT_REQD) {
-		char *buf;
-
-		buf = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
-		if (!buf) {
-			err = -ENOMEM;
-			goto out_md_fid;
-		}
-		obd_connect_flags2str(buf, PAGE_CACHE_SIZE,
-				      valid ^ CLIENT_CONNECT_MDT_REQD, ",");
-		LCONSOLE_ERROR_MSG(0x170, "Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n",
-				   sbi->ll_md_exp->exp_obd->obd_name, buf);
-		kfree(buf);
-		err = -EPROTO;
-		goto out_md_fid;
-	}
-
-	size = sizeof(*data);
-	err = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
-			   KEY_CONN_DATA,  &size, data, NULL);
-	if (err) {
-		CERROR("%s: Get connect data failed: rc = %d\n",
-		       sbi->ll_md_exp->exp_obd->obd_name, err);
-		goto out_md_fid;
-	}
-
-	LASSERT(osfs->os_bsize);
-	sb->s_blocksize = osfs->os_bsize;
-	sb->s_blocksize_bits = log2(osfs->os_bsize);
-	sb->s_magic = LL_SUPER_MAGIC;
-	sb->s_maxbytes = MAX_LFS_FILESIZE;
-	sbi->ll_namelen = osfs->os_namelen;
-
-	if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
-	    !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
-		LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n");
-		sbi->ll_flags &= ~LL_SBI_USER_XATTR;
-	}
-
-	if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
-#ifdef MS_POSIXACL
-		sb->s_flags |= MS_POSIXACL;
-#endif
-		sbi->ll_flags |= LL_SBI_ACL;
-	} else {
-		LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
-#ifdef MS_POSIXACL
-		sb->s_flags &= ~MS_POSIXACL;
-#endif
-		sbi->ll_flags &= ~LL_SBI_ACL;
-	}
-
-	if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
-		if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
-			sbi->ll_flags |= LL_SBI_RMT_CLIENT;
-			LCONSOLE_INFO("client is set as remote by default.\n");
-		}
-	} else {
-		if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-			sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
-			LCONSOLE_INFO("client claims to be remote, but server rejected, forced to be local.\n");
-		}
-	}
-
-	if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
-		LCONSOLE_INFO("client enabled MDS capability!\n");
-		sbi->ll_flags |= LL_SBI_MDS_CAPA;
-	}
-
-	if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
-		LCONSOLE_INFO("client enabled OSS capability!\n");
-		sbi->ll_flags |= LL_SBI_OSS_CAPA;
-	}
-
-	if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH)
-		sbi->ll_flags |= LL_SBI_64BIT_HASH;
-
-	if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
-		sbi->ll_md_brw_size = data->ocd_brw_size;
-	else
-		sbi->ll_md_brw_size = PAGE_CACHE_SIZE;
-
-	if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) {
-		LCONSOLE_INFO("Layout lock feature supported.\n");
-		sbi->ll_flags |= LL_SBI_LAYOUT_LOCK;
-	}
-
-	if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) {
-		if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) {
-			LCONSOLE_INFO(
-				"%s: disabling xattr cache due to unknown maximum xattr size.\n",
-				dt);
-		} else {
-			sbi->ll_flags |= LL_SBI_XATTR_CACHE;
-			sbi->ll_xattr_cache_enabled = 1;
-		}
-	}
-
-	obd = class_name2obd(dt);
-	if (!obd) {
-		CERROR("DT %s: not setup or attached\n", dt);
-		err = -ENODEV;
-		goto out_md_fid;
-	}
-
-	data->ocd_connect_flags = OBD_CONNECT_GRANT     | OBD_CONNECT_VERSION  |
-				  OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
-				  OBD_CONNECT_CANCELSET | OBD_CONNECT_FID      |
-				  OBD_CONNECT_SRVLOCK   | OBD_CONNECT_TRUNCLOCK|
-				  OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
-				  OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
-				  OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH |
-				  OBD_CONNECT_MAXBYTES |
-				  OBD_CONNECT_EINPROGRESS |
-				  OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
-				  OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS;
-
-	if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
-		data->ocd_connect_flags |= OBD_CONNECT_SOM;
-
-	if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
-		/* OBD_CONNECT_CKSUM should always be set, even if checksums are
-		 * disabled by default, because it can still be enabled on the
-		 * fly via /sys. As a consequence, we still need to come to an
-		 * agreement on the supported algorithms at connect time */
-		data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
-
-		if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
-			data->ocd_cksum_types = OBD_CKSUM_ADLER;
-		else
-			data->ocd_cksum_types = cksum_types_supported_client();
-	}
-
-	data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
-		data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
-
-	CDEBUG(D_RPCTRACE, "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n",
-	       data->ocd_connect_flags,
-	       data->ocd_version, data->ocd_grant);
-
-	obd->obd_upcall.onu_owner = &sbi->ll_lco;
-	obd->obd_upcall.onu_upcall = cl_ocd_update;
-
-	data->ocd_brw_size = DT_MAX_BRW_SIZE;
-
-	err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data,
-			  NULL);
-	if (err == -EBUSY) {
-		LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing recovery, of which this client is not a part.  Please wait for recovery to complete, abort, or time out.\n",
-				   dt);
-		goto out_md;
-	} else if (err) {
-		CERROR("%s: Cannot connect to %s: rc = %d\n",
-		       sbi->ll_dt_exp->exp_obd->obd_name, dt, err);
-		goto out_md;
-	}
-
-	sbi->ll_dt_exp->exp_connect_data = *data;
-
-	err = obd_fid_init(sbi->ll_dt_exp->exp_obd, sbi->ll_dt_exp,
-			   LUSTRE_SEQ_METADATA);
-	if (err) {
-		CERROR("%s: Can't init data layer FID infrastructure, rc = %d\n",
-		       sbi->ll_dt_exp->exp_obd->obd_name, err);
-		goto out_dt;
-	}
-
-	mutex_lock(&sbi->ll_lco.lco_lock);
-	sbi->ll_lco.lco_flags = data->ocd_connect_flags;
-	sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
-	sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
-	mutex_unlock(&sbi->ll_lco.lco_lock);
-
-	fid_zero(&sbi->ll_root_fid);
-	err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
-	if (err) {
-		CERROR("cannot mds_connect: rc = %d\n", err);
-		goto out_lock_cn_cb;
-	}
-	if (!fid_is_sane(&sbi->ll_root_fid)) {
-		CERROR("%s: Invalid root fid "DFID" during mount\n",
-		       sbi->ll_md_exp->exp_obd->obd_name,
-		       PFID(&sbi->ll_root_fid));
-		err = -EINVAL;
-		goto out_lock_cn_cb;
-	}
-	CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
-
-	sb->s_op = &lustre_super_operations;
-#if THREAD_SIZE >= 8192 /*b=17630*/
-	sb->s_export_op = &lustre_export_operations;
-#endif
-
-	/* make root inode
-	 * XXX: move this to after cbd setup? */
-	valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
-		valid |= OBD_MD_FLRMTPERM;
-	else if (sbi->ll_flags & LL_SBI_ACL)
-		valid |= OBD_MD_FLACL;
-
-	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (!op_data) {
-		err = -ENOMEM;
-		goto out_lock_cn_cb;
-	}
-
-	op_data->op_fid1 = sbi->ll_root_fid;
-	op_data->op_mode = 0;
-	op_data->op_capa1 = oc;
-	op_data->op_valid = valid;
-
-	err = md_getattr(sbi->ll_md_exp, op_data, &request);
-	if (oc)
-		capa_put(oc);
-	kfree(op_data);
-	if (err) {
-		CERROR("%s: md_getattr failed for root: rc = %d\n",
-		       sbi->ll_md_exp->exp_obd->obd_name, err);
-		goto out_lock_cn_cb;
-	}
-
-	err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
-			       sbi->ll_md_exp, &lmd);
-	if (err) {
-		CERROR("failed to understand root inode md: rc = %d\n", err);
-		ptlrpc_req_finished(request);
-		goto out_lock_cn_cb;
-	}
-
-	LASSERT(fid_is_sane(&sbi->ll_root_fid));
-	root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid,
-					    sbi->ll_flags & LL_SBI_32BIT_API),
-		       &lmd);
-	md_free_lustre_md(sbi->ll_md_exp, &lmd);
-	ptlrpc_req_finished(request);
-
-	if (root == NULL || IS_ERR(root)) {
-		if (lmd.lsm)
-			obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
-#ifdef CONFIG_FS_POSIX_ACL
-		if (lmd.posix_acl) {
-			posix_acl_release(lmd.posix_acl);
-			lmd.posix_acl = NULL;
-		}
-#endif
-		err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
-		root = NULL;
-		CERROR("lustre_lite: bad iget4 for root\n");
-		goto out_root;
-	}
-
-	err = ll_close_thread_start(&sbi->ll_lcq);
-	if (err) {
-		CERROR("cannot start close thread: rc %d\n", err);
-		goto out_root;
-	}
-
-#ifdef CONFIG_FS_POSIX_ACL
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-		rct_init(&sbi->ll_rct);
-		et_init(&sbi->ll_et);
-	}
-#endif
-
-	checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
-	err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
-				 KEY_CHECKSUM, sizeof(checksum), &checksum,
-				 NULL);
-	cl_sb_init(sb);
-
-	err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CACHE_SET),
-				 KEY_CACHE_SET, sizeof(sbi->ll_cache),
-				 &sbi->ll_cache, NULL);
-
-	sb->s_root = d_make_root(root);
-	if (sb->s_root == NULL) {
-		CERROR("%s: can't make root dentry\n",
-			ll_get_fsname(sb, NULL, 0));
-		err = -ENOMEM;
-		goto out_lock_cn_cb;
-	}
-
-	sbi->ll_sdev_orig = sb->s_dev;
-
-	/* We set sb->s_dev equal on all lustre clients in order to support
-	 * NFS export clustering.  NFSD requires that the FSID be the same
-	 * on all clients. */
-	/* s_dev is also used in lt_compare() to compare two fs, but that is
-	 * only a node-local comparison. */
-	uuid = obd_get_uuid(sbi->ll_md_exp);
-	if (uuid != NULL) {
-		sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
-		get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid);
-	}
-
-	kfree(data);
-	kfree(osfs);
-
-	return err;
-out_root:
-	iput(root);
-out_lock_cn_cb:
-	obd_fid_fini(sbi->ll_dt_exp->exp_obd);
-out_dt:
-	obd_disconnect(sbi->ll_dt_exp);
-	sbi->ll_dt_exp = NULL;
-	/* Make sure all OScs are gone, since cl_cache is accessing sbi. */
-	obd_zombie_barrier();
-out_md_fid:
-	obd_fid_fini(sbi->ll_md_exp->exp_obd);
-out_md:
-	obd_disconnect(sbi->ll_md_exp);
-	sbi->ll_md_exp = NULL;
-out:
-	kfree(data);
-	kfree(osfs);
-	ldebugfs_unregister_mountpoint(sbi);
-	return err;
-}
-
-int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
-{
-	int size, rc;
-
-	*lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
-	size = sizeof(int);
-	rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
-			  KEY_MAX_EASIZE, &size, lmmsize, NULL);
-	if (rc)
-		CERROR("Get max mdsize error rc %d\n", rc);
-
-	return rc;
-}
-
-int ll_get_default_mdsize(struct ll_sb_info *sbi, int *lmmsize)
-{
-	int size, rc;
-
-	size = sizeof(int);
-	rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_EASIZE),
-			 KEY_DEFAULT_EASIZE, &size, lmmsize, NULL);
-	if (rc)
-		CERROR("Get default mdsize error rc %d\n", rc);
-
-	return rc;
-}
-
-int ll_get_max_cookiesize(struct ll_sb_info *sbi, int *lmmsize)
-{
-	int size, rc;
-
-	size = sizeof(int);
-	rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_COOKIESIZE),
-			  KEY_MAX_COOKIESIZE, &size, lmmsize, NULL);
-	if (rc)
-		CERROR("Get max cookiesize error rc %d\n", rc);
-
-	return rc;
-}
-
-int ll_get_default_cookiesize(struct ll_sb_info *sbi, int *lmmsize)
-{
-	int size, rc;
-
-	size = sizeof(int);
-	rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_DEFAULT_COOKIESIZE),
-			  KEY_DEFAULT_COOKIESIZE, &size, lmmsize, NULL);
-	if (rc)
-		CERROR("Get default cookiesize error rc %d\n", rc);
-
-	return rc;
-}
-
-static void client_common_put_super(struct super_block *sb)
-{
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-
-#ifdef CONFIG_FS_POSIX_ACL
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-		et_fini(&sbi->ll_et);
-		rct_fini(&sbi->ll_rct);
-	}
-#endif
-
-	ll_close_thread_shutdown(sbi->ll_lcq);
-
-	cl_sb_fini(sb);
-
-	list_del(&sbi->ll_conn_chain);
-
-	obd_fid_fini(sbi->ll_dt_exp->exp_obd);
-	obd_disconnect(sbi->ll_dt_exp);
-	sbi->ll_dt_exp = NULL;
-	/* wait till all OSCs are gone, since cl_cache is accessing sbi.
-	 * see LU-2543. */
-	obd_zombie_barrier();
-
-	ldebugfs_unregister_mountpoint(sbi);
-
-	obd_fid_fini(sbi->ll_md_exp->exp_obd);
-	obd_disconnect(sbi->ll_md_exp);
-	sbi->ll_md_exp = NULL;
-}
-
-void ll_kill_super(struct super_block *sb)
-{
-	struct ll_sb_info *sbi;
-
-	/* not init sb ?*/
-	if (!(sb->s_flags & MS_ACTIVE))
-		return;
-
-	sbi = ll_s2sbi(sb);
-	/* we need to restore s_dev from changed for clustered NFS before
-	 * put_super because new kernels have cached s_dev and change sb->s_dev
-	 * in put_super not affected real removing devices */
-	if (sbi) {
-		sb->s_dev = sbi->ll_sdev_orig;
-		sbi->ll_umounting = 1;
-	}
-}
-
-static inline int ll_set_opt(const char *opt, char *data, int fl)
-{
-	if (strncmp(opt, data, strlen(opt)) != 0)
-		return 0;
-	else
-		return fl;
-}
-
-/* non-client-specific mount options are parsed in lmd_parse */
-static int ll_options(char *options, int *flags)
-{
-	int tmp;
-	char *s1 = options, *s2;
-
-	if (!options)
-		return 0;
-
-	CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
-
-	while (*s1) {
-		CDEBUG(D_SUPER, "next opt=%s\n", s1);
-		tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
-		if (tmp) {
-			*flags &= ~tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
-		if (tmp) {
-			*flags &= ~tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("user_fid2path", s1, LL_SBI_USER_FID2PATH);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("nouser_fid2path", s1, LL_SBI_USER_FID2PATH);
-		if (tmp) {
-			*flags &= ~tmp;
-			goto next;
-		}
-
-		tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
-		if (tmp) {
-			*flags &= ~tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
-		if (tmp) {
-			*flags &= ~tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
-		if (tmp) {
-			*flags &= ~tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("verbose", s1, LL_SBI_VERBOSE);
-		if (tmp) {
-			*flags |= tmp;
-			goto next;
-		}
-		tmp = ll_set_opt("noverbose", s1, LL_SBI_VERBOSE);
-		if (tmp) {
-			*flags &= ~tmp;
-			goto next;
-		}
-		LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
-				   s1);
-		return -EINVAL;
-
-next:
-		/* Find next opt */
-		s2 = strchr(s1, ',');
-		if (s2 == NULL)
-			break;
-		s1 = s2 + 1;
-	}
-	return 0;
-}
-
-void ll_lli_init(struct ll_inode_info *lli)
-{
-	lli->lli_inode_magic = LLI_INODE_MAGIC;
-	lli->lli_flags = 0;
-	lli->lli_ioepoch = 0;
-	lli->lli_maxbytes = MAX_LFS_FILESIZE;
-	spin_lock_init(&lli->lli_lock);
-	lli->lli_posix_acl = NULL;
-	lli->lli_remote_perms = NULL;
-	mutex_init(&lli->lli_rmtperm_mutex);
-	/* Do not set lli_fid, it has been initialized already. */
-	fid_zero(&lli->lli_pfid);
-	INIT_LIST_HEAD(&lli->lli_close_list);
-	INIT_LIST_HEAD(&lli->lli_oss_capas);
-	atomic_set(&lli->lli_open_count, 0);
-	lli->lli_mds_capa = NULL;
-	lli->lli_rmtperm_time = 0;
-	lli->lli_pending_och = NULL;
-	lli->lli_mds_read_och = NULL;
-	lli->lli_mds_write_och = NULL;
-	lli->lli_mds_exec_och = NULL;
-	lli->lli_open_fd_read_count = 0;
-	lli->lli_open_fd_write_count = 0;
-	lli->lli_open_fd_exec_count = 0;
-	mutex_init(&lli->lli_och_mutex);
-	spin_lock_init(&lli->lli_agl_lock);
-	lli->lli_has_smd = false;
-	spin_lock_init(&lli->lli_layout_lock);
-	ll_layout_version_set(lli, LL_LAYOUT_GEN_NONE);
-	lli->lli_clob = NULL;
-
-	init_rwsem(&lli->lli_xattrs_list_rwsem);
-	mutex_init(&lli->lli_xattrs_enq_lock);
-
-	LASSERT(lli->lli_vfs_inode.i_mode != 0);
-	if (S_ISDIR(lli->lli_vfs_inode.i_mode)) {
-		mutex_init(&lli->lli_readdir_mutex);
-		lli->lli_opendir_key = NULL;
-		lli->lli_sai = NULL;
-		spin_lock_init(&lli->lli_sa_lock);
-		lli->lli_opendir_pid = 0;
-	} else {
-		mutex_init(&lli->lli_size_mutex);
-		lli->lli_symlink_name = NULL;
-		init_rwsem(&lli->lli_trunc_sem);
-		mutex_init(&lli->lli_write_mutex);
-		init_rwsem(&lli->lli_glimpse_sem);
-		lli->lli_glimpse_time = 0;
-		INIT_LIST_HEAD(&lli->lli_agl_list);
-		lli->lli_agl_index = 0;
-		lli->lli_async_rc = 0;
-	}
-	mutex_init(&lli->lli_layout_mutex);
-}
-
-static inline int ll_bdi_register(struct backing_dev_info *bdi)
-{
-	static atomic_t ll_bdi_num = ATOMIC_INIT(0);
-
-	bdi->name = "lustre";
-	return bdi_register(bdi, NULL, "lustre-%d",
-			    atomic_inc_return(&ll_bdi_num));
-}
-
-int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
-{
-	struct lustre_profile *lprof = NULL;
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct ll_sb_info *sbi;
-	char  *dt = NULL, *md = NULL;
-	char  *profilenm = get_profile_name(sb);
-	struct config_llog_instance *cfg;
-	int    err;
-
-	CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
-
-	cfg = kzalloc(sizeof(*cfg), GFP_NOFS);
-	if (!cfg)
-		return -ENOMEM;
-
-	try_module_get(THIS_MODULE);
-
-	/* client additional sb info */
-	lsi->lsi_llsbi = sbi = ll_init_sbi(sb);
-	if (!sbi) {
-		module_put(THIS_MODULE);
-		kfree(cfg);
-		return -ENOMEM;
-	}
-
-	err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
-	if (err)
-		goto out_free;
-
-	err = bdi_init(&lsi->lsi_bdi);
-	if (err)
-		goto out_free;
-	lsi->lsi_flags |= LSI_BDI_INITIALIZED;
-	lsi->lsi_bdi.capabilities = 0;
-	err = ll_bdi_register(&lsi->lsi_bdi);
-	if (err)
-		goto out_free;
-
-	sb->s_bdi = &lsi->lsi_bdi;
-	/* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
-	sb->s_d_op = &ll_d_ops;
-
-	/* Generate a string unique to this super, in case some joker tries
-	   to mount the same fs at two mount points.
-	   Use the address of the super itself.*/
-	cfg->cfg_instance = sb;
-	cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
-	cfg->cfg_callback = class_config_llog_handler;
-	/* set up client obds */
-	err = lustre_process_log(sb, profilenm, cfg);
-	if (err < 0) {
-		CERROR("Unable to process log: %d\n", err);
-		goto out_free;
-	}
-
-	/* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
-	lprof = class_get_profile(profilenm);
-	if (lprof == NULL) {
-		LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be read from the MGS.  Does that filesystem exist?\n",
-				   profilenm);
-		err = -EINVAL;
-		goto out_free;
-	}
-	CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
-	       lprof->lp_md, lprof->lp_dt);
-
-	dt = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
-	if (!dt) {
-		err = -ENOMEM;
-		goto out_free;
-	}
-
-	md = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_md, cfg->cfg_instance);
-	if (!md) {
-		err = -ENOMEM;
-		goto out_free;
-	}
-
-	/* connections, registrations, sb setup */
-	err = client_common_fill_super(sb, md, dt, mnt);
-
-out_free:
-	kfree(md);
-	kfree(dt);
-	if (err)
-		ll_put_super(sb);
-	else if (sbi->ll_flags & LL_SBI_VERBOSE)
-		LCONSOLE_WARN("Mounted %s\n", profilenm);
-
-	kfree(cfg);
-	return err;
-} /* ll_fill_super */
-
-void ll_put_super(struct super_block *sb)
-{
-	struct config_llog_instance cfg, params_cfg;
-	struct obd_device *obd;
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	char *profilenm = get_profile_name(sb);
-	int next, force = 1;
-
-	CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
-
-	ll_print_capa_stat(sbi);
-
-	cfg.cfg_instance = sb;
-	lustre_end_log(sb, profilenm, &cfg);
-
-	params_cfg.cfg_instance = sb;
-	lustre_end_log(sb, PARAMS_FILENAME, &params_cfg);
-
-	if (sbi->ll_md_exp) {
-		obd = class_exp2obd(sbi->ll_md_exp);
-		if (obd)
-			force = obd->obd_force;
-	}
-
-	/* We need to set force before the lov_disconnect in
-	   lustre_common_put_super, since l_d cleans up osc's as well. */
-	if (force) {
-		next = 0;
-		while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
-						     &next)) != NULL) {
-			obd->obd_force = force;
-		}
-	}
-
-	if (sbi->ll_lcq) {
-		/* Only if client_common_fill_super succeeded */
-		client_common_put_super(sb);
-	}
-
-	next = 0;
-	while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)))
-		class_manual_cleanup(obd);
-
-	if (sbi->ll_flags & LL_SBI_VERBOSE)
-		LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : "");
-
-	if (profilenm)
-		class_del_profile(profilenm);
-
-	if (lsi->lsi_flags & LSI_BDI_INITIALIZED) {
-		bdi_destroy(&lsi->lsi_bdi);
-		lsi->lsi_flags &= ~LSI_BDI_INITIALIZED;
-	}
-
-	ll_free_sbi(sb);
-	lsi->lsi_llsbi = NULL;
-
-	lustre_common_put_super(sb);
-
-	module_put(THIS_MODULE);
-} /* client_put_super */
-
-struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
-{
-	struct inode *inode = NULL;
-
-	/* NOTE: we depend on atomic igrab() -bzzz */
-	lock_res_and_lock(lock);
-	if (lock->l_resource->lr_lvb_inode) {
-		struct ll_inode_info *lli;
-
-		lli = ll_i2info(lock->l_resource->lr_lvb_inode);
-		if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
-			inode = igrab(lock->l_resource->lr_lvb_inode);
-		} else {
-			inode = lock->l_resource->lr_lvb_inode;
-			LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ?  D_INFO :
-					 D_WARNING, lock, "lr_lvb_inode %p is bogus: magic %08x",
-					 lock->l_resource->lr_lvb_inode,
-					 lli->lli_inode_magic);
-			inode = NULL;
-		}
-	}
-	unlock_res_and_lock(lock);
-	return inode;
-}
-
-void ll_clear_inode(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
-	       inode->i_generation, inode);
-
-	if (S_ISDIR(inode->i_mode)) {
-		/* these should have been cleared in ll_file_release */
-		LASSERT(lli->lli_opendir_key == NULL);
-		LASSERT(lli->lli_sai == NULL);
-		LASSERT(lli->lli_opendir_pid == 0);
-	}
-
-	spin_lock(&lli->lli_lock);
-	ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
-	spin_unlock(&lli->lli_lock);
-	md_null_inode(sbi->ll_md_exp, ll_inode2fid(inode));
-
-	LASSERT(!lli->lli_open_fd_write_count);
-	LASSERT(!lli->lli_open_fd_read_count);
-	LASSERT(!lli->lli_open_fd_exec_count);
-
-	if (lli->lli_mds_write_och)
-		ll_md_real_close(inode, FMODE_WRITE);
-	if (lli->lli_mds_exec_och)
-		ll_md_real_close(inode, FMODE_EXEC);
-	if (lli->lli_mds_read_och)
-		ll_md_real_close(inode, FMODE_READ);
-
-	if (S_ISLNK(inode->i_mode)) {
-		kfree(lli->lli_symlink_name);
-		lli->lli_symlink_name = NULL;
-	}
-
-	ll_xattr_cache_destroy(inode);
-
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-		LASSERT(lli->lli_posix_acl == NULL);
-		if (lli->lli_remote_perms) {
-			free_rmtperm_hash(lli->lli_remote_perms);
-			lli->lli_remote_perms = NULL;
-		}
-	}
-#ifdef CONFIG_FS_POSIX_ACL
-	else if (lli->lli_posix_acl) {
-		LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
-		LASSERT(lli->lli_remote_perms == NULL);
-		posix_acl_release(lli->lli_posix_acl);
-		lli->lli_posix_acl = NULL;
-	}
-#endif
-	lli->lli_inode_magic = LLI_INODE_DEAD;
-
-	ll_clear_inode_capas(inode);
-	if (!S_ISDIR(inode->i_mode))
-		LASSERT(list_empty(&lli->lli_agl_list));
-
-	/*
-	 * XXX This has to be done before lsm is freed below, because
-	 * cl_object still uses inode lsm.
-	 */
-	cl_inode_fini(inode);
-	lli->lli_has_smd = false;
-}
-
-#define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
-
-static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
-		  struct md_open_data **mod)
-{
-	struct lustre_md md;
-	struct inode *inode = d_inode(dentry);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ptlrpc_request *request = NULL;
-	int rc, ia_valid;
-
-	op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
-			&request, mod);
-	if (rc) {
-		ptlrpc_req_finished(request);
-		if (rc == -ENOENT) {
-			clear_nlink(inode);
-			/* Unlinked special device node? Or just a race?
-			 * Pretend we done everything. */
-			if (!S_ISREG(inode->i_mode) &&
-			    !S_ISDIR(inode->i_mode)) {
-				ia_valid = op_data->op_attr.ia_valid;
-				op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS;
-				rc = simple_setattr(dentry, &op_data->op_attr);
-				op_data->op_attr.ia_valid = ia_valid;
-			}
-		} else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
-			CERROR("md_setattr fails: rc = %d\n", rc);
-		}
-		return rc;
-	}
-
-	rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
-			      sbi->ll_md_exp, &md);
-	if (rc) {
-		ptlrpc_req_finished(request);
-		return rc;
-	}
-
-	ia_valid = op_data->op_attr.ia_valid;
-	/* inode size will be in ll_setattr_ost, can't do it now since dirty
-	 * cache is not cleared yet. */
-	op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE);
-	rc = simple_setattr(dentry, &op_data->op_attr);
-	op_data->op_attr.ia_valid = ia_valid;
-
-	/* Extract epoch data if obtained. */
-	op_data->op_handle = md.body->handle;
-	op_data->op_ioepoch = md.body->ioepoch;
-
-	ll_update_inode(inode, &md);
-	ptlrpc_req_finished(request);
-
-	return rc;
-}
-
-/* Close IO epoch and send Size-on-MDS attribute update. */
-static int ll_setattr_done_writing(struct inode *inode,
-				   struct md_op_data *op_data,
-				   struct md_open_data *mod)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	int rc = 0;
-
-	LASSERT(op_data != NULL);
-	if (!S_ISREG(inode->i_mode))
-		return 0;
-
-	CDEBUG(D_INODE, "Epoch %llu closed on "DFID" for truncate\n",
-	       op_data->op_ioepoch, PFID(&lli->lli_fid));
-
-	op_data->op_flags = MF_EPOCH_CLOSE;
-	ll_done_writing_attr(inode, op_data);
-	ll_pack_inode2opdata(inode, op_data, NULL);
-
-	rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
-	if (rc == -EAGAIN) {
-		/* MDS has instructed us to obtain Size-on-MDS attribute
-		 * from OSTs and send setattr to back to MDS. */
-		rc = ll_som_update(inode, op_data);
-	} else if (rc) {
-		CERROR("inode %lu mdc truncate failed: rc = %d\n",
-		       inode->i_ino, rc);
-	}
-	return rc;
-}
-
-static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
-{
-	struct obd_capa *capa;
-	int rc;
-
-	if (attr->ia_valid & ATTR_SIZE)
-		capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
-	else
-		capa = ll_mdscapa_get(inode);
-
-	rc = cl_setattr_ost(inode, attr, capa);
-
-	if (attr->ia_valid & ATTR_SIZE)
-		ll_truncate_free_capa(capa);
-	else
-		capa_put(capa);
-
-	return rc;
-}
-
-
-/* If this inode has objects allocated to it (lsm != NULL), then the OST
- * object(s) determine the file size and mtime.  Otherwise, the MDS will
- * keep these values until such a time that objects are allocated for it.
- * We do the MDS operations first, as it is checking permissions for us.
- * We don't to the MDS RPC if there is nothing that we want to store there,
- * otherwise there is no harm in updating mtime/atime on the MDS if we are
- * going to do an RPC anyways.
- *
- * If we are doing a truncate, we will send the mtime and ctime updates
- * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
- * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
- * at the same time.
- *
- * In case of HSMimport, we only set attr on MDS.
- */
-int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
-{
-	struct inode *inode = d_inode(dentry);
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct md_op_data *op_data = NULL;
-	struct md_open_data *mod = NULL;
-	bool file_is_released = false;
-	int rc = 0, rc1 = 0;
-
-	CDEBUG(D_VFSTRACE,
-		"%s: setattr inode %p/fid:"DFID
-		" from %llu to %llu, valid %x, hsm_import %d\n",
-		ll_get_fsname(inode->i_sb, NULL, 0), inode,
-		PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size,
-		attr->ia_valid, hsm_import);
-
-	if (attr->ia_valid & ATTR_SIZE) {
-		/* Check new size against VFS/VM file size limit and rlimit */
-		rc = inode_newsize_ok(inode, attr->ia_size);
-		if (rc)
-			return rc;
-
-		/* The maximum Lustre file size is variable, based on the
-		 * OST maximum object size and number of stripes.  This
-		 * needs another check in addition to the VFS check above. */
-		if (attr->ia_size > ll_file_maxbytes(inode)) {
-			CDEBUG(D_INODE, "file "DFID" too large %llu > %llu\n",
-			       PFID(&lli->lli_fid), attr->ia_size,
-			       ll_file_maxbytes(inode));
-			return -EFBIG;
-		}
-
-		attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
-	}
-
-	/* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
-	if (attr->ia_valid & TIMES_SET_FLAGS) {
-		if ((!uid_eq(current_fsuid(), inode->i_uid)) &&
-		    !capable(CFS_CAP_FOWNER))
-			return -EPERM;
-	}
-
-	/* We mark all of the fields "set" so MDS/OST does not re-set them */
-	if (attr->ia_valid & ATTR_CTIME) {
-		attr->ia_ctime = CURRENT_TIME;
-		attr->ia_valid |= ATTR_CTIME_SET;
-	}
-	if (!(attr->ia_valid & ATTR_ATIME_SET) &&
-	    (attr->ia_valid & ATTR_ATIME)) {
-		attr->ia_atime = CURRENT_TIME;
-		attr->ia_valid |= ATTR_ATIME_SET;
-	}
-	if (!(attr->ia_valid & ATTR_MTIME_SET) &&
-	    (attr->ia_valid & ATTR_MTIME)) {
-		attr->ia_mtime = CURRENT_TIME;
-		attr->ia_valid |= ATTR_MTIME_SET;
-	}
-
-	if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
-		CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
-		       LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
-		       get_seconds());
-
-	/* If we are changing file size, file content is modified, flag it. */
-	if (attr->ia_valid & ATTR_SIZE) {
-		attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
-		spin_lock(&lli->lli_lock);
-		lli->lli_flags |= LLIF_DATA_MODIFIED;
-		spin_unlock(&lli->lli_lock);
-	}
-
-	/* We always do an MDS RPC, even if we're only changing the size;
-	 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
-
-	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (!op_data)
-		return -ENOMEM;
-
-	if (!S_ISDIR(inode->i_mode))
-		mutex_unlock(&inode->i_mutex);
-
-	memcpy(&op_data->op_attr, attr, sizeof(*attr));
-
-	/* Open epoch for truncate. */
-	if (exp_connect_som(ll_i2mdexp(inode)) &&
-	    (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
-		op_data->op_flags = MF_EPOCH_OPEN;
-
-	/* truncate on a released file must failed with -ENODATA,
-	 * so size must not be set on MDS for released file
-	 * but other attributes must be set
-	 */
-	if (S_ISREG(inode->i_mode)) {
-		struct lov_stripe_md *lsm;
-		__u32 gen;
-
-		ll_layout_refresh(inode, &gen);
-		lsm = ccc_inode_lsm_get(inode);
-		if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED)
-			file_is_released = true;
-		ccc_inode_lsm_put(inode, lsm);
-	}
-
-	/* if not in HSM import mode, clear size attr for released file
-	 * we clear the attribute send to MDT in op_data, not the original
-	 * received from caller in attr which is used later to
-	 * decide return code */
-	if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import)
-		op_data->op_attr.ia_valid &= ~ATTR_SIZE;
-
-	rc = ll_md_setattr(dentry, op_data, &mod);
-	if (rc)
-		goto out;
-
-	/* truncate failed (only when non HSM import), others succeed */
-	if (file_is_released) {
-		if ((attr->ia_valid & ATTR_SIZE) && !hsm_import)
-			rc = -ENODATA;
-		else
-			rc = 0;
-		goto out;
-	}
-
-	/* RPC to MDT is sent, cancel data modification flag */
-	if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
-		spin_lock(&lli->lli_lock);
-		lli->lli_flags &= ~LLIF_DATA_MODIFIED;
-		spin_unlock(&lli->lli_lock);
-	}
-
-	ll_ioepoch_open(lli, op_data->op_ioepoch);
-	if (!S_ISREG(inode->i_mode)) {
-		rc = 0;
-		goto out;
-	}
-
-	if (attr->ia_valid & (ATTR_SIZE |
-			      ATTR_ATIME | ATTR_ATIME_SET |
-			      ATTR_MTIME | ATTR_MTIME_SET)) {
-		/* For truncate and utimes sending attributes to OSTs, setting
-		 * mtime/atime to the past will be performed under PW [0:EOF]
-		 * extent lock (new_size:EOF for truncate).  It may seem
-		 * excessive to send mtime/atime updates to OSTs when not
-		 * setting times to past, but it is necessary due to possible
-		 * time de-synchronization between MDT inode and OST objects */
-		if (attr->ia_valid & ATTR_SIZE)
-			down_write(&lli->lli_trunc_sem);
-		rc = ll_setattr_ost(inode, attr);
-		if (attr->ia_valid & ATTR_SIZE)
-			up_write(&lli->lli_trunc_sem);
-	}
-out:
-	if (op_data) {
-		if (op_data->op_ioepoch) {
-			rc1 = ll_setattr_done_writing(inode, op_data, mod);
-			if (!rc)
-				rc = rc1;
-		}
-		ll_finish_md_op_data(op_data);
-	}
-	if (!S_ISDIR(inode->i_mode)) {
-		mutex_lock(&inode->i_mutex);
-		if ((attr->ia_valid & ATTR_SIZE) && !hsm_import)
-			inode_dio_wait(inode);
-	}
-
-	ll_stats_ops_tally(ll_i2sbi(inode), (attr->ia_valid & ATTR_SIZE) ?
-			LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1);
-
-	return rc;
-}
-
-int ll_setattr(struct dentry *de, struct iattr *attr)
-{
-	int mode = d_inode(de)->i_mode;
-
-	if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
-			      (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
-		attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
-
-	if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
-			       (ATTR_SIZE|ATTR_MODE)) &&
-	    (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
-	     (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
-	      !(attr->ia_mode & S_ISGID))))
-		attr->ia_valid |= ATTR_FORCE;
-
-	if ((attr->ia_valid & ATTR_MODE) &&
-	    (mode & S_ISUID) &&
-	    !(attr->ia_mode & S_ISUID) &&
-	    !(attr->ia_valid & ATTR_KILL_SUID))
-		attr->ia_valid |= ATTR_KILL_SUID;
-
-	if ((attr->ia_valid & ATTR_MODE) &&
-	    ((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
-	    !(attr->ia_mode & S_ISGID) &&
-	    !(attr->ia_valid & ATTR_KILL_SGID))
-		attr->ia_valid |= ATTR_KILL_SGID;
-
-	return ll_setattr_raw(de, attr, false);
-}
-
-int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
-		       __u64 max_age, __u32 flags)
-{
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	struct obd_statfs obd_osfs;
-	int rc;
-
-	rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags);
-	if (rc) {
-		CERROR("md_statfs fails: rc = %d\n", rc);
-		return rc;
-	}
-
-	osfs->os_type = sb->s_magic;
-
-	CDEBUG(D_SUPER, "MDC blocks %llu/%llu objects %llu/%llu\n",
-	       osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,
-	       osfs->os_files);
-
-	if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
-		flags |= OBD_STATFS_NODELAY;
-
-	rc = obd_statfs_rqset(sbi->ll_dt_exp, &obd_osfs, max_age, flags);
-	if (rc) {
-		CERROR("obd_statfs fails: rc = %d\n", rc);
-		return rc;
-	}
-
-	CDEBUG(D_SUPER, "OSC blocks %llu/%llu objects %llu/%llu\n",
-	       obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
-	       obd_osfs.os_files);
-
-	osfs->os_bsize = obd_osfs.os_bsize;
-	osfs->os_blocks = obd_osfs.os_blocks;
-	osfs->os_bfree = obd_osfs.os_bfree;
-	osfs->os_bavail = obd_osfs.os_bavail;
-
-	/* If we don't have as many objects free on the OST as inodes
-	 * on the MDS, we reduce the total number of inodes to
-	 * compensate, so that the "inodes in use" number is correct.
-	 */
-	if (obd_osfs.os_ffree < osfs->os_ffree) {
-		osfs->os_files = (osfs->os_files - osfs->os_ffree) +
-			obd_osfs.os_ffree;
-		osfs->os_ffree = obd_osfs.os_ffree;
-	}
-
-	return rc;
-}
-int ll_statfs(struct dentry *de, struct kstatfs *sfs)
-{
-	struct super_block *sb = de->d_sb;
-	struct obd_statfs osfs;
-	int rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op: at %llu jiffies\n", get_jiffies_64());
-	ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
-
-	/* Some amount of caching on the client is allowed */
-	rc = ll_statfs_internal(sb, &osfs,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				0);
-	if (rc)
-		return rc;
-
-	statfs_unpack(sfs, &osfs);
-
-	/* We need to downshift for all 32-bit kernels, because we can't
-	 * tell if the kernel is being called via sys_statfs64() or not.
-	 * Stop before overflowing f_bsize - in which case it is better
-	 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
-	if (sizeof(long) < 8) {
-		while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
-			sfs->f_bsize <<= 1;
-
-			osfs.os_blocks >>= 1;
-			osfs.os_bfree >>= 1;
-			osfs.os_bavail >>= 1;
-		}
-	}
-
-	sfs->f_blocks = osfs.os_blocks;
-	sfs->f_bfree = osfs.os_bfree;
-	sfs->f_bavail = osfs.os_bavail;
-	sfs->f_fsid = ll_s2sbi(sb)->ll_fsid;
-	return 0;
-}
-
-void ll_inode_size_lock(struct inode *inode)
-{
-	struct ll_inode_info *lli;
-
-	LASSERT(!S_ISDIR(inode->i_mode));
-
-	lli = ll_i2info(inode);
-	mutex_lock(&lli->lli_size_mutex);
-}
-
-void ll_inode_size_unlock(struct inode *inode)
-{
-	struct ll_inode_info *lli;
-
-	lli = ll_i2info(inode);
-	mutex_unlock(&lli->lli_size_mutex);
-}
-
-void ll_update_inode(struct inode *inode, struct lustre_md *md)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct mdt_body *body = md->body;
-	struct lov_stripe_md *lsm = md->lsm;
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-
-	LASSERT((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
-	if (lsm != NULL) {
-		if (!lli->lli_has_smd &&
-		    !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK))
-			cl_file_inode_init(inode, md);
-
-		lli->lli_maxbytes = lsm->lsm_maxbytes;
-		if (lli->lli_maxbytes > MAX_LFS_FILESIZE)
-			lli->lli_maxbytes = MAX_LFS_FILESIZE;
-	}
-
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
-		if (body->valid & OBD_MD_FLRMTPERM)
-			ll_update_remote_perm(inode, md->remote_perm);
-	}
-#ifdef CONFIG_FS_POSIX_ACL
-	else if (body->valid & OBD_MD_FLACL) {
-		spin_lock(&lli->lli_lock);
-		if (lli->lli_posix_acl)
-			posix_acl_release(lli->lli_posix_acl);
-		lli->lli_posix_acl = md->posix_acl;
-		spin_unlock(&lli->lli_lock);
-	}
-#endif
-	inode->i_ino = cl_fid_build_ino(&body->fid1,
-					sbi->ll_flags & LL_SBI_32BIT_API);
-	inode->i_generation = cl_fid_build_gen(&body->fid1);
-
-	if (body->valid & OBD_MD_FLATIME) {
-		if (body->atime > LTIME_S(inode->i_atime))
-			LTIME_S(inode->i_atime) = body->atime;
-		lli->lli_lvb.lvb_atime = body->atime;
-	}
-	if (body->valid & OBD_MD_FLMTIME) {
-		if (body->mtime > LTIME_S(inode->i_mtime)) {
-			CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n",
-			       inode->i_ino, LTIME_S(inode->i_mtime),
-			       body->mtime);
-			LTIME_S(inode->i_mtime) = body->mtime;
-		}
-		lli->lli_lvb.lvb_mtime = body->mtime;
-	}
-	if (body->valid & OBD_MD_FLCTIME) {
-		if (body->ctime > LTIME_S(inode->i_ctime))
-			LTIME_S(inode->i_ctime) = body->ctime;
-		lli->lli_lvb.lvb_ctime = body->ctime;
-	}
-	if (body->valid & OBD_MD_FLMODE)
-		inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
-	if (body->valid & OBD_MD_FLTYPE)
-		inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
-	LASSERT(inode->i_mode != 0);
-	if (S_ISREG(inode->i_mode))
-		inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1,
-				       LL_MAX_BLKSIZE_BITS);
-	else
-		inode->i_blkbits = inode->i_sb->s_blocksize_bits;
-	if (body->valid & OBD_MD_FLUID)
-		inode->i_uid = make_kuid(&init_user_ns, body->uid);
-	if (body->valid & OBD_MD_FLGID)
-		inode->i_gid = make_kgid(&init_user_ns, body->gid);
-	if (body->valid & OBD_MD_FLFLAGS)
-		inode->i_flags = ll_ext_to_inode_flags(body->flags);
-	if (body->valid & OBD_MD_FLNLINK)
-		set_nlink(inode, body->nlink);
-	if (body->valid & OBD_MD_FLRDEV)
-		inode->i_rdev = old_decode_dev(body->rdev);
-
-	if (body->valid & OBD_MD_FLID) {
-		/* FID shouldn't be changed! */
-		if (fid_is_sane(&lli->lli_fid)) {
-			LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
-				 "Trying to change FID "DFID
-				 " to the "DFID", inode %lu/%u(%p)\n",
-				 PFID(&lli->lli_fid), PFID(&body->fid1),
-				 inode->i_ino, inode->i_generation, inode);
-		} else
-			lli->lli_fid = body->fid1;
-	}
-
-	LASSERT(fid_seq(&lli->lli_fid) != 0);
-
-	if (body->valid & OBD_MD_FLSIZE) {
-		if (exp_connect_som(ll_i2mdexp(inode)) &&
-		    S_ISREG(inode->i_mode)) {
-			struct lustre_handle lockh;
-			ldlm_mode_t mode;
-
-			/* As it is possible a blocking ast has been processed
-			 * by this time, we need to check there is an UPDATE
-			 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
-			 * it. */
-			mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
-					       &lockh, LDLM_FL_CBPENDING,
-					       LCK_CR | LCK_CW |
-					       LCK_PR | LCK_PW);
-			if (mode) {
-				if (lli->lli_flags & (LLIF_DONE_WRITING |
-						      LLIF_EPOCH_PENDING |
-						      LLIF_SOM_DIRTY)) {
-					CERROR("ino %lu flags %u still has size authority! do not trust the size got from MDS\n",
-					       inode->i_ino, lli->lli_flags);
-				} else {
-					/* Use old size assignment to avoid
-					 * deadlock bz14138 & bz14326 */
-					i_size_write(inode, body->size);
-					spin_lock(&lli->lli_lock);
-					lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
-					spin_unlock(&lli->lli_lock);
-				}
-				ldlm_lock_decref(&lockh, mode);
-			}
-		} else {
-			/* Use old size assignment to avoid
-			 * deadlock bz14138 & bz14326 */
-			i_size_write(inode, body->size);
-
-			CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
-			       inode->i_ino, (unsigned long long)body->size);
-		}
-
-		if (body->valid & OBD_MD_FLBLOCKS)
-			inode->i_blocks = body->blocks;
-	}
-
-	if (body->valid & OBD_MD_FLMDSCAPA) {
-		LASSERT(md->mds_capa);
-		ll_add_capa(inode, md->mds_capa);
-	}
-	if (body->valid & OBD_MD_FLOSSCAPA) {
-		LASSERT(md->oss_capa);
-		ll_add_capa(inode, md->oss_capa);
-	}
-
-	if (body->valid & OBD_MD_TSTATE) {
-		if (body->t_state & MS_RESTORE)
-			lli->lli_flags |= LLIF_FILE_RESTORING;
-	}
-}
-
-void ll_read_inode2(struct inode *inode, void *opaque)
-{
-	struct lustre_md *md = opaque;
-	struct ll_inode_info *lli = ll_i2info(inode);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
-	       PFID(&lli->lli_fid), inode);
-
-	LASSERT(!lli->lli_has_smd);
-
-	/* Core attributes from the MDS first.  This is a new inode, and
-	 * the VFS doesn't zero times in the core inode so we have to do
-	 * it ourselves.  They will be overwritten by either MDS or OST
-	 * attributes - we just need to make sure they aren't newer. */
-	LTIME_S(inode->i_mtime) = 0;
-	LTIME_S(inode->i_atime) = 0;
-	LTIME_S(inode->i_ctime) = 0;
-	inode->i_rdev = 0;
-	ll_update_inode(inode, md);
-
-	/* OIDEBUG(inode); */
-
-	if (S_ISREG(inode->i_mode)) {
-		struct ll_sb_info *sbi = ll_i2sbi(inode);
-
-		inode->i_op = &ll_file_inode_operations;
-		inode->i_fop = sbi->ll_fop;
-		inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
-	} else if (S_ISDIR(inode->i_mode)) {
-		inode->i_op = &ll_dir_inode_operations;
-		inode->i_fop = &ll_dir_operations;
-	} else if (S_ISLNK(inode->i_mode)) {
-		inode->i_op = &ll_fast_symlink_inode_operations;
-	} else {
-		inode->i_op = &ll_special_inode_operations;
-
-		init_special_inode(inode, inode->i_mode,
-				   inode->i_rdev);
-	}
-}
-
-void ll_delete_inode(struct inode *inode)
-{
-	struct cl_inode_info *lli = cl_i2info(inode);
-
-	if (S_ISREG(inode->i_mode) && lli->lli_clob != NULL)
-		/* discard all dirty pages before truncating them, required by
-		 * osc_extent implementation at LU-1030. */
-		cl_sync_file_range(inode, 0, OBD_OBJECT_EOF,
-				   CL_FSYNC_DISCARD, 1);
-
-	truncate_inode_pages_final(&inode->i_data);
-
-	/* Workaround for LU-118 */
-	if (inode->i_data.nrpages) {
-		spin_lock_irq(&inode->i_data.tree_lock);
-		spin_unlock_irq(&inode->i_data.tree_lock);
-		LASSERTF(inode->i_data.nrpages == 0,
-			 "inode=%lu/%u(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n",
-			 inode->i_ino, inode->i_generation, inode,
-			 inode->i_data.nrpages);
-	}
-	/* Workaround end */
-
-	ll_clear_inode(inode);
-	clear_inode(inode);
-}
-
-int ll_iocontrol(struct inode *inode, struct file *file,
-		 unsigned int cmd, unsigned long arg)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ptlrpc_request *req = NULL;
-	int rc, flags = 0;
-
-	switch (cmd) {
-	case FSFILT_IOC_GETFLAGS: {
-		struct mdt_body *body;
-		struct md_op_data *op_data;
-
-		op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
-					     0, 0, LUSTRE_OPC_ANY,
-					     NULL);
-		if (IS_ERR(op_data))
-			return PTR_ERR(op_data);
-
-		op_data->op_valid = OBD_MD_FLFLAGS;
-		rc = md_getattr(sbi->ll_md_exp, op_data, &req);
-		ll_finish_md_op_data(op_data);
-		if (rc) {
-			CERROR("failure %d inode %lu\n", rc, inode->i_ino);
-			return -abs(rc);
-		}
-
-		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-
-		flags = body->flags;
-
-		ptlrpc_req_finished(req);
-
-		return put_user(flags, (int *)arg);
-	}
-	case FSFILT_IOC_SETFLAGS: {
-		struct lov_stripe_md *lsm;
-		struct obd_info oinfo = { { { 0 } } };
-		struct md_op_data *op_data;
-
-		if (get_user(flags, (int *)arg))
-			return -EFAULT;
-
-		op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-					     LUSTRE_OPC_ANY, NULL);
-		if (IS_ERR(op_data))
-			return PTR_ERR(op_data);
-
-		((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
-		op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
-		rc = md_setattr(sbi->ll_md_exp, op_data,
-				NULL, 0, NULL, 0, &req, NULL);
-		ll_finish_md_op_data(op_data);
-		ptlrpc_req_finished(req);
-		if (rc)
-			return rc;
-
-		inode->i_flags = ll_ext_to_inode_flags(flags);
-
-		lsm = ccc_inode_lsm_get(inode);
-		if (!lsm_has_objects(lsm)) {
-			ccc_inode_lsm_put(inode, lsm);
-			return 0;
-		}
-
-		OBDO_ALLOC(oinfo.oi_oa);
-		if (!oinfo.oi_oa) {
-			ccc_inode_lsm_put(inode, lsm);
-			return -ENOMEM;
-		}
-		oinfo.oi_md = lsm;
-		oinfo.oi_oa->o_oi = lsm->lsm_oi;
-		oinfo.oi_oa->o_flags = flags;
-		oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
-				       OBD_MD_FLGROUP;
-		oinfo.oi_capa = ll_mdscapa_get(inode);
-		obdo_set_parent_fid(oinfo.oi_oa, &ll_i2info(inode)->lli_fid);
-		rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
-		capa_put(oinfo.oi_capa);
-		OBDO_FREE(oinfo.oi_oa);
-		ccc_inode_lsm_put(inode, lsm);
-
-		if (rc && rc != -EPERM && rc != -EACCES)
-			CERROR("osc_setattr_async fails: rc = %d\n", rc);
-
-		return rc;
-	}
-	default:
-		return -ENOSYS;
-	}
-
-	return 0;
-}
-
-int ll_flush_ctx(struct inode *inode)
-{
-	struct ll_sb_info  *sbi = ll_i2sbi(inode);
-
-	CDEBUG(D_SEC, "flush context for user %d\n",
-		      from_kuid(&init_user_ns, current_uid()));
-
-	obd_set_info_async(NULL, sbi->ll_md_exp,
-			   sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
-			   0, NULL, NULL);
-	obd_set_info_async(NULL, sbi->ll_dt_exp,
-			   sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
-			   0, NULL, NULL);
-	return 0;
-}
-
-/* umount -f client means force down, don't save state */
-void ll_umount_begin(struct super_block *sb)
-{
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	struct obd_device *obd;
-	struct obd_ioctl_data *ioc_data;
-
-	CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
-	       sb->s_count, atomic_read(&sb->s_active));
-
-	obd = class_exp2obd(sbi->ll_md_exp);
-	if (obd == NULL) {
-		CERROR("Invalid MDC connection handle %#llx\n",
-		       sbi->ll_md_exp->exp_handle.h_cookie);
-		return;
-	}
-	obd->obd_force = 1;
-
-	obd = class_exp2obd(sbi->ll_dt_exp);
-	if (obd == NULL) {
-		CERROR("Invalid LOV connection handle %#llx\n",
-		       sbi->ll_dt_exp->exp_handle.h_cookie);
-		return;
-	}
-	obd->obd_force = 1;
-
-	ioc_data = kzalloc(sizeof(*ioc_data), GFP_NOFS);
-	if (ioc_data) {
-		obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
-			      sizeof(*ioc_data), ioc_data, NULL);
-
-		obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
-			      sizeof(*ioc_data), ioc_data, NULL);
-
-		kfree(ioc_data);
-	}
-
-	/* Really, we'd like to wait until there are no requests outstanding,
-	 * and then continue.  For now, we just invalidate the requests,
-	 * schedule() and sleep one second if needed, and hope.
-	 */
-	schedule();
-}
-
-int ll_remount_fs(struct super_block *sb, int *flags, char *data)
-{
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	char *profilenm = get_profile_name(sb);
-	int err;
-	__u32 read_only;
-
-	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
-		read_only = *flags & MS_RDONLY;
-		err = obd_set_info_async(NULL, sbi->ll_md_exp,
-					 sizeof(KEY_READ_ONLY),
-					 KEY_READ_ONLY, sizeof(read_only),
-					 &read_only, NULL);
-		if (err) {
-			LCONSOLE_WARN("Failed to remount %s %s (%d)\n",
-				      profilenm, read_only ?
-				      "read-only" : "read-write", err);
-			return err;
-		}
-
-		if (read_only)
-			sb->s_flags |= MS_RDONLY;
-		else
-			sb->s_flags &= ~MS_RDONLY;
-
-		if (sbi->ll_flags & LL_SBI_VERBOSE)
-			LCONSOLE_WARN("Remounted %s %s\n", profilenm,
-				      read_only ?  "read-only" : "read-write");
-	}
-	return 0;
-}
-
-int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
-		  struct super_block *sb, struct lookup_intent *it)
-{
-	struct ll_sb_info *sbi = NULL;
-	struct lustre_md md;
-	int rc;
-
-	LASSERT(*inode || sb);
-	sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
-	rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
-			      sbi->ll_md_exp, &md);
-	if (rc)
-		return rc;
-
-	if (*inode) {
-		ll_update_inode(*inode, &md);
-	} else {
-		LASSERT(sb != NULL);
-
-		/*
-		 * At this point server returns to client's same fid as client
-		 * generated for creating. So using ->fid1 is okay here.
-		 */
-		LASSERT(fid_is_sane(&md.body->fid1));
-
-		*inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1,
-					     sbi->ll_flags & LL_SBI_32BIT_API),
-				 &md);
-		if (*inode == NULL || IS_ERR(*inode)) {
-#ifdef CONFIG_FS_POSIX_ACL
-			if (md.posix_acl) {
-				posix_acl_release(md.posix_acl);
-				md.posix_acl = NULL;
-			}
-#endif
-			rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
-			*inode = NULL;
-			CERROR("new_inode -fatal: rc %d\n", rc);
-			goto out;
-		}
-	}
-
-	/* Handling piggyback layout lock.
-	 * Layout lock can be piggybacked by getattr and open request.
-	 * The lsm can be applied to inode only if it comes with a layout lock
-	 * otherwise correct layout may be overwritten, for example:
-	 * 1. proc1: mdt returns a lsm but not granting layout
-	 * 2. layout was changed by another client
-	 * 3. proc2: refresh layout and layout lock granted
-	 * 4. proc1: to apply a stale layout */
-	if (it != NULL && it->d.lustre.it_lock_mode != 0) {
-		struct lustre_handle lockh;
-		struct ldlm_lock *lock;
-
-		lockh.cookie = it->d.lustre.it_lock_handle;
-		lock = ldlm_handle2lock(&lockh);
-		LASSERT(lock != NULL);
-		if (ldlm_has_layout(lock)) {
-			struct cl_object_conf conf;
-
-			memset(&conf, 0, sizeof(conf));
-			conf.coc_opc = OBJECT_CONF_SET;
-			conf.coc_inode = *inode;
-			conf.coc_lock = lock;
-			conf.u.coc_md = &md;
-			(void)ll_layout_conf(*inode, &conf);
-		}
-		LDLM_LOCK_PUT(lock);
-	}
-
-out:
-	if (md.lsm != NULL)
-		obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
-	md_free_lustre_md(sbi->ll_md_exp, &md);
-	return rc;
-}
-
-int ll_obd_statfs(struct inode *inode, void *arg)
-{
-	struct ll_sb_info *sbi = NULL;
-	struct obd_export *exp;
-	char *buf = NULL;
-	struct obd_ioctl_data *data = NULL;
-	__u32 type;
-	__u32 flags;
-	int len = 0, rc;
-
-	if (!inode) {
-		rc = -EINVAL;
-		goto out_statfs;
-	}
-
-	sbi = ll_i2sbi(inode);
-	if (!sbi) {
-		rc = -EINVAL;
-		goto out_statfs;
-	}
-
-	rc = obd_ioctl_getdata(&buf, &len, arg);
-	if (rc)
-		goto out_statfs;
-
-	data = (void *)buf;
-	if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
-	    !data->ioc_pbuf1 || !data->ioc_pbuf2) {
-		rc = -EINVAL;
-		goto out_statfs;
-	}
-
-	if (data->ioc_inllen1 != sizeof(__u32) ||
-	    data->ioc_inllen2 != sizeof(__u32) ||
-	    data->ioc_plen1 != sizeof(struct obd_statfs) ||
-	    data->ioc_plen2 != sizeof(struct obd_uuid)) {
-		rc = -EINVAL;
-		goto out_statfs;
-	}
-
-	memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
-	if (type & LL_STATFS_LMV)
-		exp = sbi->ll_md_exp;
-	else if (type & LL_STATFS_LOV)
-		exp = sbi->ll_dt_exp;
-	else {
-		rc = -ENODEV;
-		goto out_statfs;
-	}
-
-	flags = (type & LL_STATFS_NODELAY) ? OBD_STATFS_NODELAY : 0;
-	rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, &flags);
-	if (rc)
-		goto out_statfs;
-out_statfs:
-	if (buf)
-		obd_ioctl_freedata(buf, len);
-	return rc;
-}
-
-int ll_process_config(struct lustre_cfg *lcfg)
-{
-	char *ptr;
-	void *sb;
-	struct lprocfs_static_vars lvars;
-	unsigned long x;
-	int rc = 0;
-
-	lprocfs_llite_init_vars(&lvars);
-
-	/* The instance name contains the sb: lustre-client-aacfe000 */
-	ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
-	if (!ptr || !*(++ptr))
-		return -EINVAL;
-	rc = kstrtoul(ptr, 16, &x);
-	if (rc != 0)
-		return -EINVAL;
-	sb = (void *)x;
-	/* This better be a real Lustre superblock! */
-	LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
-
-	/* Note we have not called client_common_fill_super yet, so
-	   proc fns must be able to handle that! */
-	rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
-				      lcfg, sb);
-	if (rc > 0)
-		rc = 0;
-	return rc;
-}
-
-/* this function prepares md_op_data hint for passing ot down to MD stack. */
-struct md_op_data *ll_prep_md_op_data(struct md_op_data *op_data,
-				       struct inode *i1, struct inode *i2,
-				       const char *name, int namelen,
-				       int mode, __u32 opc, void *data)
-{
-	LASSERT(i1 != NULL);
-
-	if (namelen > ll_i2sbi(i1)->ll_namelen)
-		return ERR_PTR(-ENAMETOOLONG);
-
-	if (op_data == NULL)
-		op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-
-	if (op_data == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	ll_i2gids(op_data->op_suppgids, i1, i2);
-	op_data->op_fid1 = *ll_inode2fid(i1);
-	op_data->op_capa1 = ll_mdscapa_get(i1);
-
-	if (i2) {
-		op_data->op_fid2 = *ll_inode2fid(i2);
-		op_data->op_capa2 = ll_mdscapa_get(i2);
-	} else {
-		fid_zero(&op_data->op_fid2);
-		op_data->op_capa2 = NULL;
-	}
-
-	op_data->op_name = name;
-	op_data->op_namelen = namelen;
-	op_data->op_mode = mode;
-	op_data->op_mod_time = get_seconds();
-	op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
-	op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
-	op_data->op_cap = cfs_curproc_cap_pack();
-	op_data->op_bias = 0;
-	op_data->op_cli_flags = 0;
-	if ((opc == LUSTRE_OPC_CREATE) && (name != NULL) &&
-	     filename_is_volatile(name, namelen, NULL))
-		op_data->op_bias |= MDS_CREATE_VOLATILE;
-	op_data->op_opc = opc;
-	op_data->op_mds = 0;
-	op_data->op_data = data;
-
-	/* If the file is being opened after mknod() (normally due to NFS)
-	 * try to use the default stripe data from parent directory for
-	 * allocating OST objects.  Try to pass the parent FID to MDS. */
-	if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) &&
-	    !ll_i2info(i2)->lli_has_smd) {
-		struct ll_inode_info *lli = ll_i2info(i2);
-
-		spin_lock(&lli->lli_lock);
-		if (likely(!lli->lli_has_smd && !fid_is_zero(&lli->lli_pfid)))
-			op_data->op_fid1 = lli->lli_pfid;
-		spin_unlock(&lli->lli_lock);
-		/** We ignore parent's capability temporary. */
-	}
-
-	/* When called by ll_setattr_raw, file is i1. */
-	if (LLIF_DATA_MODIFIED & ll_i2info(i1)->lli_flags)
-		op_data->op_bias |= MDS_DATA_MODIFIED;
-
-	return op_data;
-}
-
-void ll_finish_md_op_data(struct md_op_data *op_data)
-{
-	capa_put(op_data->op_capa1);
-	capa_put(op_data->op_capa2);
-	kfree(op_data);
-}
-
-int ll_show_options(struct seq_file *seq, struct dentry *dentry)
-{
-	struct ll_sb_info *sbi;
-
-	LASSERT((seq != NULL) && (dentry != NULL));
-	sbi = ll_s2sbi(dentry->d_sb);
-
-	if (sbi->ll_flags & LL_SBI_NOLCK)
-		seq_puts(seq, ",nolock");
-
-	if (sbi->ll_flags & LL_SBI_FLOCK)
-		seq_puts(seq, ",flock");
-
-	if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
-		seq_puts(seq, ",localflock");
-
-	if (sbi->ll_flags & LL_SBI_USER_XATTR)
-		seq_puts(seq, ",user_xattr");
-
-	if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
-		seq_puts(seq, ",lazystatfs");
-
-	if (sbi->ll_flags & LL_SBI_USER_FID2PATH)
-		seq_puts(seq, ",user_fid2path");
-
-	return 0;
-}
-
-/**
- * Get obd name by cmd, and copy out to user space
- */
-int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct obd_device *obd;
-
-	if (cmd == OBD_IOC_GETDTNAME)
-		obd = class_exp2obd(sbi->ll_dt_exp);
-	else if (cmd == OBD_IOC_GETMDNAME)
-		obd = class_exp2obd(sbi->ll_md_exp);
-	else
-		return -EINVAL;
-
-	if (!obd)
-		return -ENOENT;
-
-	if (copy_to_user((void *)arg, obd->obd_name,
-			     strlen(obd->obd_name) + 1))
-		return -EFAULT;
-
-	return 0;
-}
-
-/**
- * Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the
- * fsname will be returned in this buffer; otherwise, a static buffer will be
- * used to store the fsname and returned to caller.
- */
-char *ll_get_fsname(struct super_block *sb, char *buf, int buflen)
-{
-	static char fsname_static[MTI_NAME_MAXLEN];
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	char *ptr;
-	int len;
-
-	if (buf == NULL) {
-		/* this means the caller wants to use static buffer
-		 * and it doesn't care about race. Usually this is
-		 * in error reporting path */
-		buf = fsname_static;
-		buflen = sizeof(fsname_static);
-	}
-
-	len = strlen(lsi->lsi_lmd->lmd_profile);
-	ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
-	if (ptr && (strcmp(ptr, "-client") == 0))
-		len -= 7;
-
-	if (unlikely(len >= buflen))
-		len = buflen - 1;
-	strncpy(buf, lsi->lsi_lmd->lmd_profile, len);
-	buf[len] = '\0';
-
-	return buf;
-}
-
-void ll_dirty_page_discard_warn(struct page *page, int ioret)
-{
-	char *buf, *path = NULL;
-	struct dentry *dentry = NULL;
-	struct ccc_object *obj = cl_inode2ccc(page->mapping->host);
-
-	/* this can be called inside spin lock so use GFP_ATOMIC. */
-	buf = (char *)__get_free_page(GFP_ATOMIC);
-	if (buf != NULL) {
-		dentry = d_find_alias(page->mapping->host);
-		if (dentry != NULL)
-			path = dentry_path_raw(dentry, buf, PAGE_SIZE);
-	}
-
-	CDEBUG(D_WARNING,
-	       "%s: dirty page discard: %s/fid: " DFID "/%s may get corrupted (rc %d)\n",
-	       ll_get_fsname(page->mapping->host->i_sb, NULL, 0),
-	       s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev,
-	       PFID(&obj->cob_header.coh_lu.loh_fid),
-	       (path && !IS_ERR(path)) ? path : "", ioret);
-
-	if (dentry != NULL)
-		dput(dentry);
-
-	if (buf != NULL)
-		free_page((unsigned long)buf);
-}
diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c
deleted file mode 100644
index a90214bb84dd..000000000000
--- a/drivers/staging/lustre/lustre/llite/llite_mmap.c
+++ /dev/null
@@ -1,492 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <linux/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-#include "../include/linux/lustre_compat25.h"
-
-static const struct vm_operations_struct ll_file_vm_ops;
-
-void policy_from_vma(ldlm_policy_data_t *policy,
-			    struct vm_area_struct *vma, unsigned long addr,
-			    size_t count)
-{
-	policy->l_extent.start = ((addr - vma->vm_start) & CFS_PAGE_MASK) +
-				 (vma->vm_pgoff << PAGE_CACHE_SHIFT);
-	policy->l_extent.end = (policy->l_extent.start + count - 1) |
-			       ~CFS_PAGE_MASK;
-}
-
-struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr,
-			       size_t count)
-{
-	struct vm_area_struct *vma, *ret = NULL;
-
-	/* mmap_sem must have been held by caller. */
-	LASSERT(!down_write_trylock(&mm->mmap_sem));
-
-	for (vma = find_vma(mm, addr);
-	    vma != NULL && vma->vm_start < (addr + count); vma = vma->vm_next) {
-		if (vma->vm_ops && vma->vm_ops == &ll_file_vm_ops &&
-		    vma->vm_flags & VM_SHARED) {
-			ret = vma;
-			break;
-		}
-	}
-	return ret;
-}
-
-/**
- * API independent part for page fault initialization.
- * \param vma - virtual memory area addressed to page fault
- * \param env - corespondent lu_env to processing
- * \param nest - nested level
- * \param index - page index corespondent to fault.
- * \parm ra_flags - vma readahead flags.
- *
- * \return allocated and initialized env for fault operation.
- * \retval EINVAL if env can't allocated
- * \return other error codes from cl_io_init.
- */
-static struct cl_io *
-ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret,
-		 struct cl_env_nest *nest, pgoff_t index,
-		 unsigned long *ra_flags)
-{
-	struct file	       *file = vma->vm_file;
-	struct inode	       *inode = file_inode(file);
-	struct cl_io	       *io;
-	struct cl_fault_io     *fio;
-	struct lu_env	       *env;
-	int			rc;
-
-	*env_ret = NULL;
-	if (ll_file_nolock(file))
-		return ERR_PTR(-EOPNOTSUPP);
-
-	/*
-	 * page fault can be called when lustre IO is
-	 * already active for the current thread, e.g., when doing read/write
-	 * against user level buffer mapped from Lustre buffer. To avoid
-	 * stomping on existing context, optionally force an allocation of a new
-	 * one.
-	 */
-	env = cl_env_nested_get(nest);
-	if (IS_ERR(env))
-		 return ERR_PTR(-EINVAL);
-
-	*env_ret = env;
-
-	io = ccc_env_thread_io(env);
-	io->ci_obj = ll_i2info(inode)->lli_clob;
-	LASSERT(io->ci_obj != NULL);
-
-	fio = &io->u.ci_fault;
-	fio->ft_index      = index;
-	fio->ft_executable = vma->vm_flags&VM_EXEC;
-
-	/*
-	 * disable VM_SEQ_READ and use VM_RAND_READ to make sure that
-	 * the kernel will not read other pages not covered by ldlm in
-	 * filemap_nopage. we do our readahead in ll_readpage.
-	 */
-	if (ra_flags != NULL)
-		*ra_flags = vma->vm_flags & (VM_RAND_READ|VM_SEQ_READ);
-	vma->vm_flags &= ~VM_SEQ_READ;
-	vma->vm_flags |= VM_RAND_READ;
-
-	CDEBUG(D_MMAP, "vm_flags: %lx (%lu %d)\n", vma->vm_flags,
-	       fio->ft_index, fio->ft_executable);
-
-	rc = cl_io_init(env, io, CIT_FAULT, io->ci_obj);
-	if (rc == 0) {
-		struct ccc_io *cio = ccc_env_io(env);
-		struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-
-		LASSERT(cio->cui_cl.cis_io == io);
-
-		/* mmap lock must be MANDATORY it has to cache
-		 * pages. */
-		io->ci_lockreq = CILR_MANDATORY;
-		cio->cui_fd = fd;
-	} else {
-		LASSERT(rc < 0);
-		cl_io_fini(env, io);
-		cl_env_nested_put(nest, env);
-		io = ERR_PTR(rc);
-	}
-
-	return io;
-}
-
-/* Sharing code of page_mkwrite method for rhel5 and rhel6 */
-static int ll_page_mkwrite0(struct vm_area_struct *vma, struct page *vmpage,
-			    bool *retry)
-{
-	struct lu_env	   *env;
-	struct cl_io	    *io;
-	struct vvp_io	   *vio;
-	struct cl_env_nest       nest;
-	int		      result;
-	sigset_t	     set;
-	struct inode	     *inode;
-	struct ll_inode_info     *lli;
-
-	LASSERT(vmpage != NULL);
-
-	io = ll_fault_io_init(vma, &env,  &nest, vmpage->index, NULL);
-	if (IS_ERR(io)) {
-		result = PTR_ERR(io);
-		goto out;
-	}
-
-	result = io->ci_result;
-	if (result < 0)
-		goto out_io;
-
-	io->u.ci_fault.ft_mkwrite = 1;
-	io->u.ci_fault.ft_writable = 1;
-
-	vio = vvp_env_io(env);
-	vio->u.fault.ft_vma    = vma;
-	vio->u.fault.ft_vmpage = vmpage;
-
-	set = cfs_block_sigsinv(sigmask(SIGKILL) | sigmask(SIGTERM));
-
-	/* we grab lli_trunc_sem to exclude truncate case.
-	 * Otherwise, we could add dirty pages into osc cache
-	 * while truncate is on-going. */
-	inode = ccc_object_inode(io->ci_obj);
-	lli = ll_i2info(inode);
-	down_read(&lli->lli_trunc_sem);
-
-	result = cl_io_loop(env, io);
-
-	up_read(&lli->lli_trunc_sem);
-
-	cfs_restore_sigs(set);
-
-	if (result == 0) {
-		struct inode *inode = file_inode(vma->vm_file);
-		struct ll_inode_info *lli = ll_i2info(inode);
-
-		lock_page(vmpage);
-		if (vmpage->mapping == NULL) {
-			unlock_page(vmpage);
-
-			/* page was truncated and lock was cancelled, return
-			 * ENODATA so that VM_FAULT_NOPAGE will be returned
-			 * to handle_mm_fault(). */
-			if (result == 0)
-				result = -ENODATA;
-		} else if (!PageDirty(vmpage)) {
-			/* race, the page has been cleaned by ptlrpcd after
-			 * it was unlocked, it has to be added into dirty
-			 * cache again otherwise this soon-to-dirty page won't
-			 * consume any grants, even worse if this page is being
-			 * transferred because it will break RPC checksum.
-			 */
-			unlock_page(vmpage);
-
-			CDEBUG(D_MMAP, "Race on page_mkwrite %p/%lu, page has been written out, retry.\n",
-			       vmpage, vmpage->index);
-
-			*retry = true;
-			result = -EAGAIN;
-		}
-
-		if (result == 0) {
-			spin_lock(&lli->lli_lock);
-			lli->lli_flags |= LLIF_DATA_MODIFIED;
-			spin_unlock(&lli->lli_lock);
-		}
-	}
-
-out_io:
-	cl_io_fini(env, io);
-	cl_env_nested_put(&nest, env);
-out:
-	CDEBUG(D_MMAP, "%s mkwrite with %d\n", current->comm, result);
-	LASSERT(ergo(result == 0, PageLocked(vmpage)));
-
-	return result;
-}
-
-
-
-static inline int to_fault_error(int result)
-{
-	switch (result) {
-	case 0:
-		result = VM_FAULT_LOCKED;
-		break;
-	case -EFAULT:
-		result = VM_FAULT_NOPAGE;
-		break;
-	case -ENOMEM:
-		result = VM_FAULT_OOM;
-		break;
-	default:
-		result = VM_FAULT_SIGBUS;
-		break;
-	}
-	return result;
-}
-
-/**
- * Lustre implementation of a vm_operations_struct::fault() method, called by
- * VM to server page fault (both in kernel and user space).
- *
- * \param vma - is virtual area struct related to page fault
- * \param vmf - structure which describe type and address where hit fault
- *
- * \return allocated and filled _locked_ page for address
- * \retval VM_FAULT_ERROR on general error
- * \retval NOPAGE_OOM not have memory for allocate new page
- */
-static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct lu_env	   *env;
-	struct cl_io	    *io;
-	struct vvp_io	   *vio = NULL;
-	struct page	     *vmpage;
-	unsigned long	    ra_flags;
-	struct cl_env_nest       nest;
-	int		      result;
-	int		      fault_ret = 0;
-
-	io = ll_fault_io_init(vma, &env,  &nest, vmf->pgoff, &ra_flags);
-	if (IS_ERR(io))
-		return to_fault_error(PTR_ERR(io));
-
-	result = io->ci_result;
-	if (result == 0) {
-		vio = vvp_env_io(env);
-		vio->u.fault.ft_vma       = vma;
-		vio->u.fault.ft_vmpage    = NULL;
-		vio->u.fault.fault.ft_vmf = vmf;
-		vio->u.fault.fault.ft_flags = 0;
-		vio->u.fault.fault.ft_flags_valid = false;
-
-		result = cl_io_loop(env, io);
-
-		/* ft_flags are only valid if we reached
-		 * the call to filemap_fault */
-		if (vio->u.fault.fault.ft_flags_valid)
-			fault_ret = vio->u.fault.fault.ft_flags;
-
-		vmpage = vio->u.fault.ft_vmpage;
-		if (result != 0 && vmpage != NULL) {
-			page_cache_release(vmpage);
-			vmf->page = NULL;
-		}
-	}
-	cl_io_fini(env, io);
-	cl_env_nested_put(&nest, env);
-
-	vma->vm_flags |= ra_flags;
-	if (result != 0 && !(fault_ret & VM_FAULT_RETRY))
-		fault_ret |= to_fault_error(result);
-
-	CDEBUG(D_MMAP, "%s fault %d/%d\n",
-	       current->comm, fault_ret, result);
-	return fault_ret;
-}
-
-static int ll_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	int count = 0;
-	bool printed = false;
-	int result;
-	sigset_t set;
-
-	/* Only SIGKILL and SIGTERM is allowed for fault/nopage/mkwrite
-	 * so that it can be killed by admin but not cause segfault by
-	 * other signals. */
-	set = cfs_block_sigsinv(sigmask(SIGKILL) | sigmask(SIGTERM));
-
-restart:
-	result = ll_fault0(vma, vmf);
-	LASSERT(!(result & VM_FAULT_LOCKED));
-	if (result == 0) {
-		struct page *vmpage = vmf->page;
-
-		/* check if this page has been truncated */
-		lock_page(vmpage);
-		if (unlikely(vmpage->mapping == NULL)) { /* unlucky */
-			unlock_page(vmpage);
-			page_cache_release(vmpage);
-			vmf->page = NULL;
-
-			if (!printed && ++count > 16) {
-				CWARN("the page is under heavy contention, maybe your app(%s) needs revising :-)\n",
-				      current->comm);
-				printed = true;
-			}
-
-			goto restart;
-		}
-
-		result = VM_FAULT_LOCKED;
-	}
-	cfs_restore_sigs(set);
-	return result;
-}
-
-static int ll_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	int count = 0;
-	bool printed = false;
-	bool retry;
-	int result;
-
-	do {
-		retry = false;
-		result = ll_page_mkwrite0(vma, vmf->page, &retry);
-
-		if (!printed && ++count > 16) {
-			CWARN("app(%s): the page %lu of file %lu is under heavy contention.\n",
-			      current->comm, vmf->pgoff,
-			      file_inode(vma->vm_file)->i_ino);
-			printed = true;
-		}
-	} while (retry);
-
-	switch (result) {
-	case 0:
-		LASSERT(PageLocked(vmf->page));
-		result = VM_FAULT_LOCKED;
-		break;
-	case -ENODATA:
-	case -EFAULT:
-		result = VM_FAULT_NOPAGE;
-		break;
-	case -ENOMEM:
-		result = VM_FAULT_OOM;
-		break;
-	case -EAGAIN:
-		result = VM_FAULT_RETRY;
-		break;
-	default:
-		result = VM_FAULT_SIGBUS;
-		break;
-	}
-
-	return result;
-}
-
-/**
- *  To avoid cancel the locks covering mmapped region for lock cache pressure,
- *  we track the mapped vma count in ccc_object::cob_mmap_cnt.
- */
-static void ll_vm_open(struct vm_area_struct *vma)
-{
-	struct inode *inode    = file_inode(vma->vm_file);
-	struct ccc_object *vob = cl_inode2ccc(inode);
-
-	LASSERT(vma->vm_file);
-	LASSERT(atomic_read(&vob->cob_mmap_cnt) >= 0);
-	atomic_inc(&vob->cob_mmap_cnt);
-}
-
-/**
- * Dual to ll_vm_open().
- */
-static void ll_vm_close(struct vm_area_struct *vma)
-{
-	struct inode      *inode = file_inode(vma->vm_file);
-	struct ccc_object *vob   = cl_inode2ccc(inode);
-
-	LASSERT(vma->vm_file);
-	atomic_dec(&vob->cob_mmap_cnt);
-	LASSERT(atomic_read(&vob->cob_mmap_cnt) >= 0);
-}
-
-/* XXX put nice comment here.  talk about __free_pte -> dirty pages and
- * nopage's reference passing to the pte */
-int ll_teardown_mmaps(struct address_space *mapping, __u64 first, __u64 last)
-{
-	int rc = -ENOENT;
-
-	LASSERTF(last > first, "last %llu first %llu\n", last, first);
-	if (mapping_mapped(mapping)) {
-		rc = 0;
-		unmap_mapping_range(mapping, first + PAGE_CACHE_SIZE - 1,
-				    last - first + 1, 0);
-	}
-
-	return rc;
-}
-
-static const struct vm_operations_struct ll_file_vm_ops = {
-	.fault			= ll_fault,
-	.page_mkwrite		= ll_page_mkwrite,
-	.open			= ll_vm_open,
-	.close			= ll_vm_close,
-};
-
-int ll_file_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct inode *inode = file_inode(file);
-	int rc;
-
-	if (ll_file_nolock(file))
-		return -EOPNOTSUPP;
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_MAP, 1);
-	rc = generic_file_mmap(file, vma);
-	if (rc == 0) {
-		vma->vm_ops = &ll_file_vm_ops;
-		vma->vm_ops->open(vma);
-		/* update the inode's size and mtime */
-		rc = ll_glimpse_size(inode);
-	}
-
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/llite/llite_nfs.c b/drivers/staging/lustre/lustre/llite/llite_nfs.c
deleted file mode 100644
index 8d1c253d4669..000000000000
--- a/drivers/staging/lustre/lustre/llite/llite_nfs.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lustre/llite/llite_nfs.c
- *
- * NFS export of Lustre Light File System
- *
- * Author: Yury Umanets <umka@clusterfs.com>
- * Author: Huang Hua <huanghua@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-#include <linux/exportfs.h>
-
-__u32 get_uuid2int(const char *name, int len)
-{
-	__u32 key0 = 0x12a3fe2d, key1 = 0x37abe8f9;
-	while (len--) {
-		__u32 key = key1 + (key0 ^ (*name++ * 7152373));
-
-		if (key & 0x80000000)
-			key -= 0x7fffffff;
-		key1 = key0;
-		key0 = key;
-	}
-	return (key0 << 1);
-}
-
-void get_uuid2fsid(const char *name, int len, __kernel_fsid_t *fsid)
-{
-	__u64 key = 0, key0 = 0x12a3fe2d, key1 = 0x37abe8f9;
-
-	while (len--) {
-		key = key1 + (key0 ^ (*name++ * 7152373));
-		if (key & 0x8000000000000000ULL)
-			key -= 0x7fffffffffffffffULL;
-		key1 = key0;
-		key0 = key;
-	}
-
-	fsid->val[0] = key;
-	fsid->val[1] = key >> 32;
-}
-
-static int ll_nfs_test_inode(struct inode *inode, void *opaque)
-{
-	return lu_fid_eq(&ll_i2info(inode)->lli_fid,
-			 (struct lu_fid *)opaque);
-}
-
-struct inode *search_inode_for_lustre(struct super_block *sb,
-				      const struct lu_fid *fid)
-{
-	struct ll_sb_info     *sbi = ll_s2sbi(sb);
-	struct ptlrpc_request *req = NULL;
-	struct inode	  *inode = NULL;
-	int		   eadatalen = 0;
-	unsigned long	      hash = cl_fid_build_ino(fid,
-						      ll_need_32bit_api(sbi));
-	struct  md_op_data    *op_data;
-	int		   rc;
-
-	CDEBUG(D_INFO, "searching inode for:(%lu,"DFID")\n", hash, PFID(fid));
-
-	inode = ilookup5(sb, hash, ll_nfs_test_inode, (void *)fid);
-	if (inode)
-		return inode;
-
-	rc = ll_get_default_mdsize(sbi, &eadatalen);
-	if (rc)
-		return ERR_PTR(rc);
-
-	/* Because inode is NULL, ll_prep_md_op_data can not
-	 * be used here. So we allocate op_data ourselves */
-	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (!op_data)
-		return ERR_PTR(-ENOMEM);
-
-	op_data->op_fid1 = *fid;
-	op_data->op_mode = eadatalen;
-	op_data->op_valid = OBD_MD_FLEASIZE;
-
-	/* mds_fid2dentry ignores f_type */
-	rc = md_getattr(sbi->ll_md_exp, op_data, &req);
-	kfree(op_data);
-	if (rc) {
-		CERROR("can't get object attrs, fid "DFID", rc %d\n",
-		       PFID(fid), rc);
-		return ERR_PTR(rc);
-	}
-	rc = ll_prep_inode(&inode, req, sb, NULL);
-	ptlrpc_req_finished(req);
-	if (rc)
-		return ERR_PTR(rc);
-
-	return inode;
-}
-
-struct lustre_nfs_fid {
-	struct lu_fid   lnf_child;
-	struct lu_fid   lnf_parent;
-};
-
-static struct dentry *
-ll_iget_for_nfs(struct super_block *sb, struct lu_fid *fid, struct lu_fid *parent)
-{
-	struct inode  *inode;
-	struct dentry *result;
-
-	CDEBUG(D_INFO, "Get dentry for fid: "DFID"\n", PFID(fid));
-	if (!fid_is_sane(fid))
-		return ERR_PTR(-ESTALE);
-
-	inode = search_inode_for_lustre(sb, fid);
-	if (IS_ERR(inode))
-		return ERR_CAST(inode);
-
-	if (is_bad_inode(inode)) {
-		/* we didn't find the right inode.. */
-		iput(inode);
-		return ERR_PTR(-ESTALE);
-	}
-
-	/**
-	 * It is an anonymous dentry without OST objects created yet.
-	 * We have to find the parent to tell MDS how to init lov objects.
-	 */
-	if (S_ISREG(inode->i_mode) && !ll_i2info(inode)->lli_has_smd &&
-	    parent != NULL) {
-		struct ll_inode_info *lli = ll_i2info(inode);
-
-		spin_lock(&lli->lli_lock);
-		lli->lli_pfid = *parent;
-		spin_unlock(&lli->lli_lock);
-	}
-
-	result = d_obtain_alias(inode);
-	if (IS_ERR(result)) {
-		iput(inode);
-		return result;
-	}
-
-	return result;
-}
-
-#define LUSTRE_NFS_FID	  0x97
-
-/**
- * \a connectable - is nfsd will connect himself or this should be done
- *		  at lustre
- *
- * The return value is file handle type:
- * 1 -- contains child file handle;
- * 2 -- contains child file handle and parent file handle;
- * 255 -- error.
- */
-static int ll_encode_fh(struct inode *inode, __u32 *fh, int *plen,
-			struct inode *parent)
-{
-	struct lustre_nfs_fid *nfs_fid = (void *)fh;
-
-	CDEBUG(D_INFO, "encoding for (%lu,"DFID") maxlen=%d minlen=%d\n",
-	      inode->i_ino, PFID(ll_inode2fid(inode)), *plen,
-	      (int)sizeof(struct lustre_nfs_fid));
-
-	if (*plen < sizeof(struct lustre_nfs_fid) / 4)
-		return 255;
-
-	nfs_fid->lnf_child = *ll_inode2fid(inode);
-	nfs_fid->lnf_parent = *ll_inode2fid(parent);
-	*plen = sizeof(struct lustre_nfs_fid) / 4;
-
-	return LUSTRE_NFS_FID;
-}
-
-static int ll_nfs_get_name_filldir(struct dir_context *ctx, const char *name,
-				   int namelen, loff_t hash, u64 ino,
-				   unsigned type)
-{
-	/* It is hack to access lde_fid for comparison with lgd_fid.
-	 * So the input 'name' must be part of the 'lu_dirent'. */
-	struct lu_dirent *lde = container_of0(name, struct lu_dirent, lde_name);
-	struct ll_getname_data *lgd =
-		container_of(ctx, struct ll_getname_data, ctx);
-	struct lu_fid fid;
-
-	fid_le_to_cpu(&fid, &lde->lde_fid);
-	if (lu_fid_eq(&fid, &lgd->lgd_fid)) {
-		memcpy(lgd->lgd_name, name, namelen);
-		lgd->lgd_name[namelen] = 0;
-		lgd->lgd_found = 1;
-	}
-	return lgd->lgd_found;
-}
-
-static int ll_get_name(struct dentry *dentry, char *name,
-		       struct dentry *child)
-{
-	struct inode *dir = d_inode(dentry);
-	int rc;
-	struct ll_getname_data lgd = {
-		.lgd_name = name,
-		.lgd_fid = ll_i2info(d_inode(child))->lli_fid,
-		.ctx.actor = ll_nfs_get_name_filldir,
-	};
-
-	if (!dir || !S_ISDIR(dir->i_mode)) {
-		rc = -ENOTDIR;
-		goto out;
-	}
-
-	if (!dir->i_fop) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	mutex_lock(&dir->i_mutex);
-	rc = ll_dir_read(dir, &lgd.ctx);
-	mutex_unlock(&dir->i_mutex);
-	if (!rc && !lgd.lgd_found)
-		rc = -ENOENT;
-out:
-	return rc;
-}
-
-static struct dentry *ll_fh_to_dentry(struct super_block *sb, struct fid *fid,
-				      int fh_len, int fh_type)
-{
-	struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
-
-	if (fh_type != LUSTRE_NFS_FID)
-		return ERR_PTR(-EPROTO);
-
-	return ll_iget_for_nfs(sb, &nfs_fid->lnf_child, &nfs_fid->lnf_parent);
-}
-
-static struct dentry *ll_fh_to_parent(struct super_block *sb, struct fid *fid,
-				      int fh_len, int fh_type)
-{
-	struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
-
-	if (fh_type != LUSTRE_NFS_FID)
-		return ERR_PTR(-EPROTO);
-
-	return ll_iget_for_nfs(sb, &nfs_fid->lnf_parent, NULL);
-}
-
-static struct dentry *ll_get_parent(struct dentry *dchild)
-{
-	struct ptlrpc_request *req = NULL;
-	struct inode	  *dir = d_inode(dchild);
-	struct ll_sb_info     *sbi;
-	struct dentry	 *result = NULL;
-	struct mdt_body       *body;
-	static char	   dotdot[] = "..";
-	struct md_op_data     *op_data;
-	int		   rc;
-	int		      lmmsize;
-
-	LASSERT(dir && S_ISDIR(dir->i_mode));
-
-	sbi = ll_s2sbi(dir->i_sb);
-
-	CDEBUG(D_INFO, "getting parent for (%lu,"DFID")\n",
-			dir->i_ino, PFID(ll_inode2fid(dir)));
-
-	rc = ll_get_default_mdsize(sbi, &lmmsize);
-	if (rc != 0)
-		return ERR_PTR(rc);
-
-	op_data = ll_prep_md_op_data(NULL, dir, NULL, dotdot,
-				     strlen(dotdot), lmmsize,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return (void *)op_data;
-
-	rc = md_getattr_name(sbi->ll_md_exp, op_data, &req);
-	ll_finish_md_op_data(op_data);
-	if (rc) {
-		CERROR("failure %d inode %lu get parent\n", rc, dir->i_ino);
-		return ERR_PTR(rc);
-	}
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body->valid & OBD_MD_FLID);
-
-	CDEBUG(D_INFO, "parent for "DFID" is "DFID"\n",
-		PFID(ll_inode2fid(dir)), PFID(&body->fid1));
-
-	result = ll_iget_for_nfs(dir->i_sb, &body->fid1, NULL);
-
-	ptlrpc_req_finished(req);
-	return result;
-}
-
-struct export_operations lustre_export_operations = {
-       .get_parent = ll_get_parent,
-       .encode_fh  = ll_encode_fh,
-       .get_name   = ll_get_name,
-	.fh_to_dentry = ll_fh_to_dentry,
-	.fh_to_parent = ll_fh_to_parent,
-};
diff --git a/drivers/staging/lustre/lustre/llite/llite_rmtacl.c b/drivers/staging/lustre/lustre/llite/llite_rmtacl.c
deleted file mode 100644
index c8a450b5cb18..000000000000
--- a/drivers/staging/lustre/lustre/llite/llite_rmtacl.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/llite_rmtacl.c
- *
- * Lustre Remote User Access Control List.
- *
- * Author: Fan Yong <fanyong@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#ifdef CONFIG_FS_POSIX_ACL
-
-#include "../include/lustre_lite.h"
-#include "../include/lustre_eacl.h"
-#include "llite_internal.h"
-
-static inline __u32 rce_hashfunc(uid_t id)
-{
-	return id & (RCE_HASHES - 1);
-}
-
-static inline __u32 ee_hashfunc(uid_t id)
-{
-	return id & (EE_HASHES - 1);
-}
-
-u64 rce_ops2valid(int ops)
-{
-	switch (ops) {
-	case RMT_LSETFACL:
-		return OBD_MD_FLRMTLSETFACL;
-	case RMT_LGETFACL:
-		return OBD_MD_FLRMTLGETFACL;
-	case RMT_RSETFACL:
-		return OBD_MD_FLRMTRSETFACL;
-	case RMT_RGETFACL:
-		return OBD_MD_FLRMTRGETFACL;
-	default:
-		return 0;
-	}
-}
-
-static struct rmtacl_ctl_entry *rce_alloc(pid_t key, int ops)
-{
-	struct rmtacl_ctl_entry *rce;
-
-	rce = kzalloc(sizeof(*rce), GFP_NOFS);
-	if (!rce)
-		return NULL;
-
-	INIT_LIST_HEAD(&rce->rce_list);
-	rce->rce_key = key;
-	rce->rce_ops = ops;
-
-	return rce;
-}
-
-static void rce_free(struct rmtacl_ctl_entry *rce)
-{
-	if (!list_empty(&rce->rce_list))
-		list_del(&rce->rce_list);
-
-	kfree(rce);
-}
-
-static struct rmtacl_ctl_entry *__rct_search(struct rmtacl_ctl_table *rct,
-					   pid_t key)
-{
-	struct rmtacl_ctl_entry *rce;
-	struct list_head *head = &rct->rct_entries[rce_hashfunc(key)];
-
-	list_for_each_entry(rce, head, rce_list)
-		if (rce->rce_key == key)
-			return rce;
-
-	return NULL;
-}
-
-struct rmtacl_ctl_entry *rct_search(struct rmtacl_ctl_table *rct, pid_t key)
-{
-	struct rmtacl_ctl_entry *rce;
-
-	spin_lock(&rct->rct_lock);
-	rce = __rct_search(rct, key);
-	spin_unlock(&rct->rct_lock);
-	return rce;
-}
-
-int rct_add(struct rmtacl_ctl_table *rct, pid_t key, int ops)
-{
-	struct rmtacl_ctl_entry *rce, *e;
-
-	rce = rce_alloc(key, ops);
-	if (rce == NULL)
-		return -ENOMEM;
-
-	spin_lock(&rct->rct_lock);
-	e = __rct_search(rct, key);
-	if (unlikely(e != NULL)) {
-		CWARN("Unexpected stale rmtacl_entry found: [key: %d] [ops: %d]\n",
-		      (int)key, ops);
-		rce_free(e);
-	}
-	list_add_tail(&rce->rce_list, &rct->rct_entries[rce_hashfunc(key)]);
-	spin_unlock(&rct->rct_lock);
-
-	return 0;
-}
-
-int rct_del(struct rmtacl_ctl_table *rct, pid_t key)
-{
-	struct rmtacl_ctl_entry *rce;
-
-	spin_lock(&rct->rct_lock);
-	rce = __rct_search(rct, key);
-	if (rce)
-		rce_free(rce);
-	spin_unlock(&rct->rct_lock);
-
-	return rce ? 0 : -ENOENT;
-}
-
-void rct_init(struct rmtacl_ctl_table *rct)
-{
-	int i;
-
-	spin_lock_init(&rct->rct_lock);
-	for (i = 0; i < RCE_HASHES; i++)
-		INIT_LIST_HEAD(&rct->rct_entries[i]);
-}
-
-void rct_fini(struct rmtacl_ctl_table *rct)
-{
-	struct rmtacl_ctl_entry *rce;
-	int i;
-
-	spin_lock(&rct->rct_lock);
-	for (i = 0; i < RCE_HASHES; i++)
-		while (!list_empty(&rct->rct_entries[i])) {
-			rce = list_entry(rct->rct_entries[i].next,
-					     struct rmtacl_ctl_entry, rce_list);
-			rce_free(rce);
-		}
-	spin_unlock(&rct->rct_lock);
-}
-
-
-static struct eacl_entry *ee_alloc(pid_t key, struct lu_fid *fid, int type,
-				   ext_acl_xattr_header *header)
-{
-	struct eacl_entry *ee;
-
-	ee = kzalloc(sizeof(*ee), GFP_NOFS);
-	if (!ee)
-		return NULL;
-
-	INIT_LIST_HEAD(&ee->ee_list);
-	ee->ee_key = key;
-	ee->ee_fid = *fid;
-	ee->ee_type = type;
-	ee->ee_acl = header;
-
-	return ee;
-}
-
-void ee_free(struct eacl_entry *ee)
-{
-	if (!list_empty(&ee->ee_list))
-		list_del(&ee->ee_list);
-
-	if (ee->ee_acl)
-		lustre_ext_acl_xattr_free(ee->ee_acl);
-
-	kfree(ee);
-}
-
-static struct eacl_entry *__et_search_del(struct eacl_table *et, pid_t key,
-					struct lu_fid *fid, int type)
-{
-	struct eacl_entry *ee;
-	struct list_head *head = &et->et_entries[ee_hashfunc(key)];
-
-	LASSERT(fid != NULL);
-	list_for_each_entry(ee, head, ee_list)
-		if (ee->ee_key == key) {
-			if (lu_fid_eq(&ee->ee_fid, fid) &&
-			    ee->ee_type == type) {
-				list_del_init(&ee->ee_list);
-				return ee;
-			}
-		}
-
-	return NULL;
-}
-
-struct eacl_entry *et_search_del(struct eacl_table *et, pid_t key,
-				 struct lu_fid *fid, int type)
-{
-	struct eacl_entry *ee;
-
-	spin_lock(&et->et_lock);
-	ee = __et_search_del(et, key, fid, type);
-	spin_unlock(&et->et_lock);
-	return ee;
-}
-
-void et_search_free(struct eacl_table *et, pid_t key)
-{
-	struct eacl_entry *ee, *next;
-	struct list_head *head = &et->et_entries[ee_hashfunc(key)];
-
-	spin_lock(&et->et_lock);
-	list_for_each_entry_safe(ee, next, head, ee_list)
-		if (ee->ee_key == key)
-			ee_free(ee);
-
-	spin_unlock(&et->et_lock);
-}
-
-int ee_add(struct eacl_table *et, pid_t key, struct lu_fid *fid, int type,
-	   ext_acl_xattr_header *header)
-{
-	struct eacl_entry *ee, *e;
-
-	ee = ee_alloc(key, fid, type, header);
-	if (ee == NULL)
-		return -ENOMEM;
-
-	spin_lock(&et->et_lock);
-	e = __et_search_del(et, key, fid, type);
-	if (unlikely(e != NULL)) {
-		CWARN("Unexpected stale eacl_entry found: [key: %d] [fid: " DFID "] [type: %d]\n",
-		      (int)key, PFID(fid), type);
-		ee_free(e);
-	}
-	list_add_tail(&ee->ee_list, &et->et_entries[ee_hashfunc(key)]);
-	spin_unlock(&et->et_lock);
-
-	return 0;
-}
-
-void et_init(struct eacl_table *et)
-{
-	int i;
-
-	spin_lock_init(&et->et_lock);
-	for (i = 0; i < EE_HASHES; i++)
-		INIT_LIST_HEAD(&et->et_entries[i]);
-}
-
-void et_fini(struct eacl_table *et)
-{
-	struct eacl_entry *ee;
-	int i;
-
-	spin_lock(&et->et_lock);
-	for (i = 0; i < EE_HASHES; i++)
-		while (!list_empty(&et->et_entries[i])) {
-			ee = list_entry(et->et_entries[i].next,
-					    struct eacl_entry, ee_list);
-			ee_free(ee);
-		}
-	spin_unlock(&et->et_lock);
-}
-
-#endif
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c
deleted file mode 100644
index 5f0d80cc9718..000000000000
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ /dev/null
@@ -1,880 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-/*
- *  linux/drivers/block/loop.c
- *
- *  Written by Theodore Ts'o, 3/29/93
- *
- * Copyright 1993 by Theodore Ts'o.  Redistribution of this file is
- * permitted under the GNU General Public License.
- *
- * Modularized and updated for 1.1.16 kernel - Mitch Dsouza 28th May 1994
- * Adapted for 1.3.59 kernel - Andries Brouwer, 1 Feb 1996
- *
- * Fixed do_loop_request() re-entrancy - Vincent.Renardias@waw.com Mar 20, 1997
- *
- * Added devfs support - Richard Gooch <rgooch@atnf.csiro.au> 16-Jan-1998
- *
- * Handle sparse backing files correctly - Kenn Humborg, Jun 28, 1998
- *
- * Loadable modules and other fixes by AK, 1998
- *
- * Maximum number of loop devices now dynamic via max_loop module parameter.
- * Russell Kroll <rkroll@exploits.org> 19990701
- *
- * Maximum number of loop devices when compiled-in now selectable by passing
- * max_loop=<1-255> to the kernel on boot.
- * Erik I. Bols?, <eriki@himolde.no>, Oct 31, 1999
- *
- * Completely rewrite request handling to be make_request_fn style and
- * non blocking, pushing work to a helper thread. Lots of fixes from
- * Al Viro too.
- * Jens Axboe <axboe@suse.de>, Nov 2000
- *
- * Support up to 256 loop devices
- * Heinz Mauelshagen <mge@sistina.com>, Feb 2002
- *
- * Support for falling back on the write file operation when the address space
- * operations prepare_write and/or commit_write are not available on the
- * backing filesystem.
- * Anton Altaparmakov, 16 Feb 2005
- *
- * Still To Fix:
- * - Advisory locking is ignored here.
- * - Should use an own CAP_* category instead of CAP_SYS_ADMIN
- *
- */
-
-#include <linux/module.h>
-
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/major.h>
-#include <linux/wait.h>
-#include <linux/blkdev.h>
-#include <linux/blkpg.h>
-#include <linux/init.h>
-#include <linux/swap.h>
-#include <linux/slab.h>
-#include <linux/suspend.h>
-#include <linux/writeback.h>
-#include <linux/buffer_head.h>		/* for invalidate_bdev() */
-#include <linux/completion.h>
-#include <linux/highmem.h>
-#include <linux/gfp.h>
-#include <linux/pagevec.h>
-#include <linux/uaccess.h>
-
-#include "../include/lustre_lib.h"
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-
-#define LLOOP_MAX_SEGMENTS	LNET_MAX_IOV
-
-/* Possible states of device */
-enum {
-	LLOOP_UNBOUND,
-	LLOOP_BOUND,
-	LLOOP_RUNDOWN,
-};
-
-struct lloop_device {
-	int		  lo_number;
-	int		  lo_refcnt;
-	loff_t	       lo_offset;
-	loff_t	       lo_sizelimit;
-	int		  lo_flags;
-	struct file	 *lo_backing_file;
-	struct block_device *lo_device;
-	unsigned	     lo_blocksize;
-
-	gfp_t		  old_gfp_mask;
-
-	spinlock_t		lo_lock;
-	struct bio		*lo_bio;
-	struct bio		*lo_biotail;
-	int			lo_state;
-	struct semaphore	lo_sem;
-	struct mutex		lo_ctl_mutex;
-	atomic_t	 lo_pending;
-	wait_queue_head_t	  lo_bh_wait;
-
-	struct request_queue *lo_queue;
-
-	const struct lu_env *lo_env;
-	struct cl_io	 lo_io;
-	struct ll_dio_pages  lo_pvec;
-
-	/* data to handle bio for lustre. */
-	struct lo_request_data {
-		struct page *lrd_pages[LLOOP_MAX_SEGMENTS];
-		loff_t       lrd_offsets[LLOOP_MAX_SEGMENTS];
-	} lo_requests[1];
-};
-
-/*
- * Loop flags
- */
-enum {
-	LO_FLAGS_READ_ONLY       = 1,
-};
-
-static int lloop_major;
-#define MAX_LOOP_DEFAULT  16
-static int max_loop = MAX_LOOP_DEFAULT;
-static struct lloop_device *loop_dev;
-static struct gendisk **disks;
-static struct mutex lloop_mutex;
-static void *ll_iocontrol_magic;
-
-static loff_t get_loop_size(struct lloop_device *lo, struct file *file)
-{
-	loff_t size, offset, loopsize;
-
-	/* Compute loopsize in bytes */
-	size = i_size_read(file->f_mapping->host);
-	offset = lo->lo_offset;
-	loopsize = size - offset;
-	if (lo->lo_sizelimit > 0 && lo->lo_sizelimit < loopsize)
-		loopsize = lo->lo_sizelimit;
-
-	/*
-	 * Unfortunately, if we want to do I/O on the device,
-	 * the number of 512-byte sectors has to fit into a sector_t.
-	 */
-	return loopsize >> 9;
-}
-
-static int do_bio_lustrebacked(struct lloop_device *lo, struct bio *head)
-{
-	const struct lu_env  *env   = lo->lo_env;
-	struct cl_io	 *io    = &lo->lo_io;
-	struct inode	 *inode = file_inode(lo->lo_backing_file);
-	struct cl_object     *obj = ll_i2info(inode)->lli_clob;
-	pgoff_t	       offset;
-	int		   ret;
-	int		   rw;
-	u32		   page_count = 0;
-	struct bio_vec       bvec;
-	struct bvec_iter   iter;
-	struct bio	   *bio;
-	ssize_t	       bytes;
-
-	struct ll_dio_pages  *pvec = &lo->lo_pvec;
-	struct page	 **pages = pvec->ldp_pages;
-	loff_t	       *offsets = pvec->ldp_offsets;
-
-	truncate_inode_pages(inode->i_mapping, 0);
-
-	/* initialize the IO */
-	memset(io, 0, sizeof(*io));
-	io->ci_obj = obj;
-	ret = cl_io_init(env, io, CIT_MISC, obj);
-	if (ret)
-		return io->ci_result;
-	io->ci_lockreq = CILR_NEVER;
-
-	LASSERT(head != NULL);
-	rw = head->bi_rw;
-	for (bio = head; bio != NULL; bio = bio->bi_next) {
-		LASSERT(rw == bio->bi_rw);
-
-		offset = (pgoff_t)(bio->bi_iter.bi_sector << 9) + lo->lo_offset;
-		bio_for_each_segment(bvec, bio, iter) {
-			BUG_ON(bvec.bv_offset != 0);
-			BUG_ON(bvec.bv_len != PAGE_CACHE_SIZE);
-
-			pages[page_count] = bvec.bv_page;
-			offsets[page_count] = offset;
-			page_count++;
-			offset += bvec.bv_len;
-		}
-		LASSERT(page_count <= LLOOP_MAX_SEGMENTS);
-	}
-
-	ll_stats_ops_tally(ll_i2sbi(inode),
-			(rw == WRITE) ? LPROC_LL_BRW_WRITE : LPROC_LL_BRW_READ,
-			page_count);
-
-	pvec->ldp_size = page_count << PAGE_CACHE_SHIFT;
-	pvec->ldp_nr = page_count;
-
-	/* FIXME: in ll_direct_rw_pages, it has to allocate many cl_page{}s to
-	 * write those pages into OST. Even worse case is that more pages
-	 * would be asked to write out to swap space, and then finally get here
-	 * again.
-	 * Unfortunately this is NOT easy to fix.
-	 * Thoughts on solution:
-	 * 0. Define a reserved pool for cl_pages, which could be a list of
-	 *    pre-allocated cl_pages;
-	 * 1. Define a new operation in cl_object_operations{}, says clo_depth,
-	 *    which measures how many layers for this lustre object. Generally
-	 *    speaking, the depth would be 2, one for llite, and one for lovsub.
-	 *    However, for SNS, there will be more since we need additional page
-	 *    to store parity;
-	 * 2. Reserve the # of (page_count * depth) cl_pages from the reserved
-	 *    pool. Afterwards, the clio would allocate the pages from reserved
-	 *    pool, this guarantees we needn't allocate the cl_pages from
-	 *    generic cl_page slab cache.
-	 *    Of course, if there is NOT enough pages in the pool, we might
-	 *    be asked to write less pages once, this purely depends on
-	 *    implementation. Anyway, we should be careful to avoid deadlocking.
-	 */
-	mutex_lock(&inode->i_mutex);
-	bytes = ll_direct_rw_pages(env, io, rw, inode, pvec);
-	mutex_unlock(&inode->i_mutex);
-	cl_io_fini(env, io);
-	return (bytes == pvec->ldp_size) ? 0 : (int)bytes;
-}
-
-/*
- * Add bio to back of pending list
- */
-static void loop_add_bio(struct lloop_device *lo, struct bio *bio)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&lo->lo_lock, flags);
-	if (lo->lo_biotail) {
-		lo->lo_biotail->bi_next = bio;
-		lo->lo_biotail = bio;
-	} else
-		lo->lo_bio = lo->lo_biotail = bio;
-	spin_unlock_irqrestore(&lo->lo_lock, flags);
-
-	atomic_inc(&lo->lo_pending);
-	if (waitqueue_active(&lo->lo_bh_wait))
-		wake_up(&lo->lo_bh_wait);
-}
-
-/*
- * Grab first pending buffer
- */
-static unsigned int loop_get_bio(struct lloop_device *lo, struct bio **req)
-{
-	struct bio *first;
-	struct bio **bio;
-	unsigned int count = 0;
-	unsigned int page_count = 0;
-	int rw;
-
-	spin_lock_irq(&lo->lo_lock);
-	first = lo->lo_bio;
-	if (unlikely(first == NULL)) {
-		spin_unlock_irq(&lo->lo_lock);
-		return 0;
-	}
-
-	/* TODO: need to split the bio, too bad. */
-	LASSERT(first->bi_vcnt <= LLOOP_MAX_SEGMENTS);
-
-	rw = first->bi_rw;
-	bio = &lo->lo_bio;
-	while (*bio && (*bio)->bi_rw == rw) {
-		CDEBUG(D_INFO, "bio sector %llu size %u count %u vcnt%u \n",
-		       (unsigned long long)(*bio)->bi_iter.bi_sector,
-		       (*bio)->bi_iter.bi_size,
-		       page_count, (*bio)->bi_vcnt);
-		if (page_count + (*bio)->bi_vcnt > LLOOP_MAX_SEGMENTS)
-			break;
-
-
-		page_count += (*bio)->bi_vcnt;
-		count++;
-		bio = &(*bio)->bi_next;
-	}
-	if (*bio) {
-		/* Some of bios can't be mergeable. */
-		lo->lo_bio = *bio;
-		*bio = NULL;
-	} else {
-		/* Hit the end of queue */
-		lo->lo_biotail = NULL;
-		lo->lo_bio = NULL;
-	}
-	*req = first;
-	spin_unlock_irq(&lo->lo_lock);
-	return count;
-}
-
-static void loop_make_request(struct request_queue *q, struct bio *old_bio)
-{
-	struct lloop_device *lo = q->queuedata;
-	int rw = bio_rw(old_bio);
-	int inactive;
-
-	blk_queue_split(q, &old_bio, q->bio_split);
-
-	if (!lo)
-		goto err;
-
-	CDEBUG(D_INFO, "submit bio sector %llu size %u\n",
-	       (unsigned long long)old_bio->bi_iter.bi_sector,
-	       old_bio->bi_iter.bi_size);
-
-	spin_lock_irq(&lo->lo_lock);
-	inactive = lo->lo_state != LLOOP_BOUND;
-	spin_unlock_irq(&lo->lo_lock);
-	if (inactive)
-		goto err;
-
-	if (rw == WRITE) {
-		if (lo->lo_flags & LO_FLAGS_READ_ONLY)
-			goto err;
-	} else if (rw == READA) {
-		rw = READ;
-	} else if (rw != READ) {
-		CERROR("lloop: unknown command (%x)\n", rw);
-		goto err;
-	}
-	loop_add_bio(lo, old_bio);
-	return;
-err:
-	bio_io_error(old_bio);
-}
-
-
-static inline void loop_handle_bio(struct lloop_device *lo, struct bio *bio)
-{
-	int ret;
-	ret = do_bio_lustrebacked(lo, bio);
-	while (bio) {
-		struct bio *tmp = bio->bi_next;
-		bio->bi_next = NULL;
-		bio->bi_error = ret;
-		bio_endio(bio);
-		bio = tmp;
-	}
-}
-
-static inline int loop_active(struct lloop_device *lo)
-{
-	return atomic_read(&lo->lo_pending) ||
-		(lo->lo_state == LLOOP_RUNDOWN);
-}
-
-/*
- * worker thread that handles reads/writes to file backed loop devices,
- * to avoid blocking in our make_request_fn.
- */
-static int loop_thread(void *data)
-{
-	struct lloop_device *lo = data;
-	struct bio *bio;
-	unsigned int count;
-	unsigned long times = 0;
-	unsigned long total_count = 0;
-
-	struct lu_env *env;
-	int refcheck;
-	int ret = 0;
-
-	set_user_nice(current, MIN_NICE);
-
-	lo->lo_state = LLOOP_BOUND;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env)) {
-		ret = PTR_ERR(env);
-		goto out;
-	}
-
-	lo->lo_env = env;
-	memset(&lo->lo_pvec, 0, sizeof(lo->lo_pvec));
-	lo->lo_pvec.ldp_pages   = lo->lo_requests[0].lrd_pages;
-	lo->lo_pvec.ldp_offsets = lo->lo_requests[0].lrd_offsets;
-
-	/*
-	 * up sem, we are running
-	 */
-	up(&lo->lo_sem);
-
-	for (;;) {
-		wait_event(lo->lo_bh_wait, loop_active(lo));
-		if (!atomic_read(&lo->lo_pending)) {
-			int exiting = 0;
-			spin_lock_irq(&lo->lo_lock);
-			exiting = (lo->lo_state == LLOOP_RUNDOWN);
-			spin_unlock_irq(&lo->lo_lock);
-			if (exiting)
-				break;
-		}
-
-		bio = NULL;
-		count = loop_get_bio(lo, &bio);
-		if (!count) {
-			CWARN("lloop(minor: %d): missing bio\n", lo->lo_number);
-			continue;
-		}
-
-		total_count += count;
-		if (total_count < count) {     /* overflow */
-			total_count = count;
-			times = 1;
-		} else {
-			times++;
-		}
-		if ((times & 127) == 0) {
-			CDEBUG(D_INFO, "total: %lu, count: %lu, avg: %lu\n",
-			       total_count, times, total_count / times);
-		}
-
-		LASSERT(bio != NULL);
-		LASSERT(count <= atomic_read(&lo->lo_pending));
-		loop_handle_bio(lo, bio);
-		atomic_sub(count, &lo->lo_pending);
-	}
-	cl_env_put(env, &refcheck);
-
-out:
-	up(&lo->lo_sem);
-	return ret;
-}
-
-static int loop_set_fd(struct lloop_device *lo, struct file *unused,
-		       struct block_device *bdev, struct file *file)
-{
-	struct inode	 *inode;
-	struct address_space *mapping;
-	int		   lo_flags = 0;
-	int		   error;
-	loff_t		size;
-
-	if (!try_module_get(THIS_MODULE))
-		return -ENODEV;
-
-	error = -EBUSY;
-	if (lo->lo_state != LLOOP_UNBOUND)
-		goto out;
-
-	mapping = file->f_mapping;
-	inode = mapping->host;
-
-	error = -EINVAL;
-	if (!S_ISREG(inode->i_mode) || inode->i_sb->s_magic != LL_SUPER_MAGIC)
-		goto out;
-
-	if (!(file->f_mode & FMODE_WRITE))
-		lo_flags |= LO_FLAGS_READ_ONLY;
-
-	size = get_loop_size(lo, file);
-
-	if ((loff_t)(sector_t)size != size) {
-		error = -EFBIG;
-		goto out;
-	}
-
-	/* remove all pages in cache so as dirty pages not to be existent. */
-	truncate_inode_pages(mapping, 0);
-
-	set_device_ro(bdev, (lo_flags & LO_FLAGS_READ_ONLY) != 0);
-
-	lo->lo_blocksize = PAGE_CACHE_SIZE;
-	lo->lo_device = bdev;
-	lo->lo_flags = lo_flags;
-	lo->lo_backing_file = file;
-	lo->lo_sizelimit = 0;
-	lo->old_gfp_mask = mapping_gfp_mask(mapping);
-	mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
-
-	lo->lo_bio = lo->lo_biotail = NULL;
-
-	/*
-	 * set queue make_request_fn, and add limits based on lower level
-	 * device
-	 */
-	blk_queue_make_request(lo->lo_queue, loop_make_request);
-	lo->lo_queue->queuedata = lo;
-
-	/* queue parameters */
-	CLASSERT(PAGE_CACHE_SIZE < (1 << (sizeof(unsigned short) * 8)));
-	blk_queue_logical_block_size(lo->lo_queue,
-				     (unsigned short)PAGE_CACHE_SIZE);
-	blk_queue_max_hw_sectors(lo->lo_queue,
-				 LLOOP_MAX_SEGMENTS << (PAGE_CACHE_SHIFT - 9));
-	blk_queue_max_segments(lo->lo_queue, LLOOP_MAX_SEGMENTS);
-
-	set_capacity(disks[lo->lo_number], size);
-	bd_set_size(bdev, size << 9);
-
-	set_blocksize(bdev, lo->lo_blocksize);
-
-	kthread_run(loop_thread, lo, "lloop%d", lo->lo_number);
-	down(&lo->lo_sem);
-	return 0;
-
-out:
-	/* This is safe: open() is still holding a reference. */
-	module_put(THIS_MODULE);
-	return error;
-}
-
-static int loop_clr_fd(struct lloop_device *lo, struct block_device *bdev,
-		       int count)
-{
-	struct file *filp = lo->lo_backing_file;
-	gfp_t gfp = lo->old_gfp_mask;
-
-	if (lo->lo_state != LLOOP_BOUND)
-		return -ENXIO;
-
-	if (lo->lo_refcnt > count)	/* we needed one fd for the ioctl */
-		return -EBUSY;
-
-	if (filp == NULL)
-		return -EINVAL;
-
-	spin_lock_irq(&lo->lo_lock);
-	lo->lo_state = LLOOP_RUNDOWN;
-	spin_unlock_irq(&lo->lo_lock);
-	wake_up(&lo->lo_bh_wait);
-
-	down(&lo->lo_sem);
-	lo->lo_backing_file = NULL;
-	lo->lo_device = NULL;
-	lo->lo_offset = 0;
-	lo->lo_sizelimit = 0;
-	lo->lo_flags = 0;
-	invalidate_bdev(bdev);
-	set_capacity(disks[lo->lo_number], 0);
-	bd_set_size(bdev, 0);
-	mapping_set_gfp_mask(filp->f_mapping, gfp);
-	lo->lo_state = LLOOP_UNBOUND;
-	fput(filp);
-	/* This is safe: open() is still holding a reference. */
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-static int lo_open(struct block_device *bdev, fmode_t mode)
-{
-	struct lloop_device *lo = bdev->bd_disk->private_data;
-
-	mutex_lock(&lo->lo_ctl_mutex);
-	lo->lo_refcnt++;
-	mutex_unlock(&lo->lo_ctl_mutex);
-
-	return 0;
-}
-
-static void lo_release(struct gendisk *disk, fmode_t mode)
-{
-	struct lloop_device *lo = disk->private_data;
-
-	mutex_lock(&lo->lo_ctl_mutex);
-	--lo->lo_refcnt;
-	mutex_unlock(&lo->lo_ctl_mutex);
-}
-
-/* lloop device node's ioctl function. */
-static int lo_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned int cmd, unsigned long arg)
-{
-	struct lloop_device *lo = bdev->bd_disk->private_data;
-	struct inode *inode = NULL;
-	int err = 0;
-
-	mutex_lock(&lloop_mutex);
-	switch (cmd) {
-	case LL_IOC_LLOOP_DETACH: {
-		err = loop_clr_fd(lo, bdev, 2);
-		if (err == 0)
-			blkdev_put(bdev, 0); /* grabbed in LLOOP_ATTACH */
-		break;
-	}
-
-	case LL_IOC_LLOOP_INFO: {
-		struct lu_fid fid;
-
-		if (lo->lo_backing_file == NULL) {
-			err = -ENOENT;
-			break;
-		}
-		if (inode == NULL)
-			inode = file_inode(lo->lo_backing_file);
-		if (lo->lo_state == LLOOP_BOUND)
-			fid = ll_i2info(inode)->lli_fid;
-		else
-			fid_zero(&fid);
-
-		if (copy_to_user((struct lu_fid *)arg, &fid, sizeof(fid)))
-			err = -EFAULT;
-		break;
-	}
-
-	default:
-		err = -EINVAL;
-		break;
-	}
-	mutex_unlock(&lloop_mutex);
-
-	return err;
-}
-
-static struct block_device_operations lo_fops = {
-	.owner =	THIS_MODULE,
-	.open =	 lo_open,
-	.release =      lo_release,
-	.ioctl =	lo_ioctl,
-};
-
-/* dynamic iocontrol callback.
- * This callback is registered in lloop_init and will be called by
- * ll_iocontrol_call.
- *
- * This is a llite regular file ioctl function. It takes the responsibility
- * of attaching or detaching a file by a lloop's device number.
- */
-static enum llioc_iter lloop_ioctl(struct inode *unused, struct file *file,
-				   unsigned int cmd, unsigned long arg,
-				   void *magic, int *rcp)
-{
-	struct lloop_device *lo = NULL;
-	struct block_device *bdev = NULL;
-	int err = 0;
-	dev_t dev;
-
-	if (magic != ll_iocontrol_magic)
-		return LLIOC_CONT;
-
-	if (disks == NULL) {
-		err = -ENODEV;
-		goto out1;
-	}
-
-	CWARN("Enter llop_ioctl\n");
-
-	mutex_lock(&lloop_mutex);
-	switch (cmd) {
-	case LL_IOC_LLOOP_ATTACH: {
-		struct lloop_device *lo_free = NULL;
-		int i;
-
-		for (i = 0; i < max_loop; i++, lo = NULL) {
-			lo = &loop_dev[i];
-			if (lo->lo_state == LLOOP_UNBOUND) {
-				if (!lo_free)
-					lo_free = lo;
-				continue;
-			}
-			if (file_inode(lo->lo_backing_file) == file_inode(file))
-				break;
-		}
-		if (lo || !lo_free) {
-			err = -EBUSY;
-			goto out;
-		}
-
-		lo = lo_free;
-		dev = MKDEV(lloop_major, lo->lo_number);
-
-		/* quit if the used pointer is writable */
-		if (put_user((long)old_encode_dev(dev), (long *)arg)) {
-			err = -EFAULT;
-			goto out;
-		}
-
-		bdev = blkdev_get_by_dev(dev, file->f_mode, NULL);
-		if (IS_ERR(bdev)) {
-			err = PTR_ERR(bdev);
-			goto out;
-		}
-
-		get_file(file);
-		err = loop_set_fd(lo, NULL, bdev, file);
-		if (err) {
-			fput(file);
-			blkdev_put(bdev, 0);
-		}
-
-		break;
-	}
-
-	case LL_IOC_LLOOP_DETACH_BYDEV: {
-		int minor;
-
-		dev = old_decode_dev(arg);
-		if (MAJOR(dev) != lloop_major) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		minor = MINOR(dev);
-		if (minor > max_loop - 1) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		lo = &loop_dev[minor];
-		if (lo->lo_state != LLOOP_BOUND) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		bdev = lo->lo_device;
-		err = loop_clr_fd(lo, bdev, 1);
-		if (err == 0)
-			blkdev_put(bdev, 0); /* grabbed in LLOOP_ATTACH */
-
-		break;
-	}
-
-	default:
-		err = -EINVAL;
-		break;
-	}
-
-out:
-	mutex_unlock(&lloop_mutex);
-out1:
-	if (rcp)
-		*rcp = err;
-	return LLIOC_STOP;
-}
-
-static int __init lloop_init(void)
-{
-	int	i;
-	unsigned int cmdlist[] = {
-		LL_IOC_LLOOP_ATTACH,
-		LL_IOC_LLOOP_DETACH_BYDEV,
-	};
-
-	if (max_loop < 1 || max_loop > 256) {
-		max_loop = MAX_LOOP_DEFAULT;
-		CWARN("lloop: invalid max_loop (must be between 1 and 256), using default (%u)\n",
-		      max_loop);
-	}
-
-	lloop_major = register_blkdev(0, "lloop");
-	if (lloop_major < 0)
-		return -EIO;
-
-	CDEBUG(D_CONFIG, "registered lloop major %d with %u minors\n",
-	       lloop_major, max_loop);
-
-	ll_iocontrol_magic = ll_iocontrol_register(lloop_ioctl, 2, cmdlist);
-	if (ll_iocontrol_magic == NULL)
-		goto out_mem1;
-
-	loop_dev = kcalloc(max_loop, sizeof(*loop_dev), GFP_KERNEL);
-	if (!loop_dev)
-		goto out_mem1;
-
-	disks = kcalloc(max_loop, sizeof(*disks), GFP_KERNEL);
-	if (!disks)
-		goto out_mem2;
-
-	for (i = 0; i < max_loop; i++) {
-		disks[i] = alloc_disk(1);
-		if (!disks[i])
-			goto out_mem3;
-	}
-
-	mutex_init(&lloop_mutex);
-
-	for (i = 0; i < max_loop; i++) {
-		struct lloop_device *lo = &loop_dev[i];
-		struct gendisk *disk = disks[i];
-
-		lo->lo_queue = blk_alloc_queue(GFP_KERNEL);
-		if (!lo->lo_queue)
-			goto out_mem4;
-
-		mutex_init(&lo->lo_ctl_mutex);
-		sema_init(&lo->lo_sem, 0);
-		init_waitqueue_head(&lo->lo_bh_wait);
-		lo->lo_number = i;
-		spin_lock_init(&lo->lo_lock);
-		disk->major = lloop_major;
-		disk->first_minor = i;
-		disk->fops = &lo_fops;
-		sprintf(disk->disk_name, "lloop%d", i);
-		disk->private_data = lo;
-		disk->queue = lo->lo_queue;
-	}
-
-	/* We cannot fail after we call this, so another loop!*/
-	for (i = 0; i < max_loop; i++)
-		add_disk(disks[i]);
-	return 0;
-
-out_mem4:
-	while (i--)
-		blk_cleanup_queue(loop_dev[i].lo_queue);
-	i = max_loop;
-out_mem3:
-	while (i--)
-		put_disk(disks[i]);
-	kfree(disks);
-out_mem2:
-	kfree(loop_dev);
-out_mem1:
-	unregister_blkdev(lloop_major, "lloop");
-	ll_iocontrol_unregister(ll_iocontrol_magic);
-	CERROR("lloop: ran out of memory\n");
-	return -ENOMEM;
-}
-
-static void lloop_exit(void)
-{
-	int i;
-
-	ll_iocontrol_unregister(ll_iocontrol_magic);
-	for (i = 0; i < max_loop; i++) {
-		del_gendisk(disks[i]);
-		blk_cleanup_queue(loop_dev[i].lo_queue);
-		put_disk(disks[i]);
-	}
-
-	unregister_blkdev(lloop_major, "lloop");
-
-	kfree(disks);
-	kfree(loop_dev);
-}
-
-module_init(lloop_init);
-module_exit(lloop_exit);
-
-module_param(max_loop, int, 0444);
-MODULE_PARM_DESC(max_loop, "maximum of lloop_device");
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre virtual block device");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
deleted file mode 100644
index 486dca6077de..000000000000
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ /dev/null
@@ -1,1501 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/lustre_lite.h"
-#include "../include/lprocfs_status.h"
-#include <linux/seq_file.h>
-#include "../include/obd_support.h"
-
-#include "llite_internal.h"
-#include "vvp_internal.h"
-
-/* /proc/lustre/llite mount point registration */
-static struct file_operations ll_rw_extents_stats_fops;
-static struct file_operations ll_rw_extents_stats_pp_fops;
-static struct file_operations ll_rw_offset_stats_fops;
-
-static ssize_t blocksize_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	struct obd_statfs osfs;
-	int rc;
-
-	rc = ll_statfs_internal(sbi->ll_sb, &osfs,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				OBD_STATFS_NODELAY);
-	if (!rc)
-		return sprintf(buf, "%u\n", osfs.os_bsize);
-
-	return rc;
-}
-LUSTRE_RO_ATTR(blocksize);
-
-static ssize_t kbytestotal_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	struct obd_statfs osfs;
-	int rc;
-
-	rc = ll_statfs_internal(sbi->ll_sb, &osfs,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				OBD_STATFS_NODELAY);
-	if (!rc) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_blocks;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		rc = sprintf(buf, "%llu\n", result);
-	}
-
-	return rc;
-}
-LUSTRE_RO_ATTR(kbytestotal);
-
-static ssize_t kbytesfree_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	struct obd_statfs osfs;
-	int rc;
-
-	rc = ll_statfs_internal(sbi->ll_sb, &osfs,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				OBD_STATFS_NODELAY);
-	if (!rc) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_bfree;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		rc = sprintf(buf, "%llu\n", result);
-	}
-
-	return rc;
-}
-LUSTRE_RO_ATTR(kbytesfree);
-
-static ssize_t kbytesavail_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	struct obd_statfs osfs;
-	int rc;
-
-	rc = ll_statfs_internal(sbi->ll_sb, &osfs,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				OBD_STATFS_NODELAY);
-	if (!rc) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_bavail;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		rc = sprintf(buf, "%llu\n", result);
-	}
-
-	return rc;
-}
-LUSTRE_RO_ATTR(kbytesavail);
-
-static ssize_t filestotal_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	struct obd_statfs osfs;
-	int rc;
-
-	rc = ll_statfs_internal(sbi->ll_sb, &osfs,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				OBD_STATFS_NODELAY);
-	if (!rc)
-		return sprintf(buf, "%llu\n", osfs.os_files);
-
-	return rc;
-}
-LUSTRE_RO_ATTR(filestotal);
-
-static ssize_t filesfree_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	struct obd_statfs osfs;
-	int rc;
-
-	rc = ll_statfs_internal(sbi->ll_sb, &osfs,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				OBD_STATFS_NODELAY);
-	if (!rc)
-		return sprintf(buf, "%llu\n", osfs.os_ffree);
-
-	return rc;
-}
-LUSTRE_RO_ATTR(filesfree);
-
-static ssize_t client_type_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%s client\n",
-			sbi->ll_flags & LL_SBI_RMT_CLIENT ? "remote" : "local");
-}
-LUSTRE_RO_ATTR(client_type);
-
-static ssize_t fstype_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%s\n", sbi->ll_sb->s_type->name);
-}
-LUSTRE_RO_ATTR(fstype);
-
-static ssize_t uuid_show(struct kobject *kobj, struct attribute *attr,
-			 char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%s\n", sbi->ll_sb_uuid.uuid);
-}
-LUSTRE_RO_ATTR(uuid);
-
-static int ll_site_stats_seq_show(struct seq_file *m, void *v)
-{
-	struct super_block *sb = m->private;
-
-	/*
-	 * See description of statistical counters in struct cl_site, and
-	 * struct lu_site.
-	 */
-	return cl_site_stats_print(lu2cl_site(ll_s2sbi(sb)->ll_site), m);
-}
-LPROC_SEQ_FOPS_RO(ll_site_stats);
-
-static ssize_t max_read_ahead_mb_show(struct kobject *kobj,
-				      struct attribute *attr, char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	long pages_number;
-	int mult;
-
-	spin_lock(&sbi->ll_lock);
-	pages_number = sbi->ll_ra_info.ra_max_pages;
-	spin_unlock(&sbi->ll_lock);
-
-	mult = 1 << (20 - PAGE_CACHE_SHIFT);
-	return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult);
-}
-
-static ssize_t max_read_ahead_mb_store(struct kobject *kobj,
-				       struct attribute *attr,
-				       const char *buffer,
-				       size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long pages_number;
-
-	rc = kstrtoul(buffer, 10, &pages_number);
-	if (rc)
-		return rc;
-
-	pages_number *= 1 << (20 - PAGE_CACHE_SHIFT); /* MB -> pages */
-
-	if (pages_number > totalram_pages / 2) {
-
-		CERROR("can't set file readahead more than %lu MB\n",
-		       totalram_pages >> (20 - PAGE_CACHE_SHIFT + 1)); /*1/2 of RAM*/
-		return -ERANGE;
-	}
-
-	spin_lock(&sbi->ll_lock);
-	sbi->ll_ra_info.ra_max_pages = pages_number;
-	spin_unlock(&sbi->ll_lock);
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_read_ahead_mb);
-
-static ssize_t max_read_ahead_per_file_mb_show(struct kobject *kobj,
-					       struct attribute *attr,
-					       char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	long pages_number;
-	int mult;
-
-	spin_lock(&sbi->ll_lock);
-	pages_number = sbi->ll_ra_info.ra_max_pages_per_file;
-	spin_unlock(&sbi->ll_lock);
-
-	mult = 1 << (20 - PAGE_CACHE_SHIFT);
-	return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult);
-}
-
-static ssize_t max_read_ahead_per_file_mb_store(struct kobject *kobj,
-						struct attribute *attr,
-						const char *buffer,
-						size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long pages_number;
-
-	rc = kstrtoul(buffer, 10, &pages_number);
-	if (rc)
-		return rc;
-
-	if (pages_number > sbi->ll_ra_info.ra_max_pages) {
-		CERROR("can't set file readahead more than max_read_ahead_mb %lu MB\n",
-		       sbi->ll_ra_info.ra_max_pages);
-		return -ERANGE;
-	}
-
-	spin_lock(&sbi->ll_lock);
-	sbi->ll_ra_info.ra_max_pages_per_file = pages_number;
-	spin_unlock(&sbi->ll_lock);
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_read_ahead_per_file_mb);
-
-static ssize_t max_read_ahead_whole_mb_show(struct kobject *kobj,
-					    struct attribute *attr,
-					    char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	long pages_number;
-	int mult;
-
-	spin_lock(&sbi->ll_lock);
-	pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages;
-	spin_unlock(&sbi->ll_lock);
-
-	mult = 1 << (20 - PAGE_CACHE_SHIFT);
-	return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult);
-}
-
-static ssize_t max_read_ahead_whole_mb_store(struct kobject *kobj,
-					     struct attribute *attr,
-					     const char  *buffer,
-					     size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long pages_number;
-
-	rc = kstrtoul(buffer, 10, &pages_number);
-	if (rc)
-		return rc;
-
-	/* Cap this at the current max readahead window size, the readahead
-	 * algorithm does this anyway so it's pointless to set it larger. */
-	if (pages_number > sbi->ll_ra_info.ra_max_pages_per_file) {
-		CERROR("can't set max_read_ahead_whole_mb more than max_read_ahead_per_file_mb: %lu\n",
-		       sbi->ll_ra_info.ra_max_pages_per_file >> (20 - PAGE_CACHE_SHIFT));
-		return -ERANGE;
-	}
-
-	spin_lock(&sbi->ll_lock);
-	sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number;
-	spin_unlock(&sbi->ll_lock);
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_read_ahead_whole_mb);
-
-static int ll_max_cached_mb_seq_show(struct seq_file *m, void *v)
-{
-	struct super_block     *sb    = m->private;
-	struct ll_sb_info      *sbi   = ll_s2sbi(sb);
-	struct cl_client_cache *cache = &sbi->ll_cache;
-	int shift = 20 - PAGE_CACHE_SHIFT;
-	int max_cached_mb;
-	int unused_mb;
-
-	max_cached_mb = cache->ccc_lru_max >> shift;
-	unused_mb = atomic_read(&cache->ccc_lru_left) >> shift;
-	seq_printf(m,
-		   "users: %d\n"
-		   "max_cached_mb: %d\n"
-		   "used_mb: %d\n"
-		   "unused_mb: %d\n"
-		   "reclaim_count: %u\n",
-		   atomic_read(&cache->ccc_users),
-		   max_cached_mb,
-		   max_cached_mb - unused_mb,
-		   unused_mb,
-		   cache->ccc_lru_shrinkers);
-	return 0;
-}
-
-static ssize_t ll_max_cached_mb_seq_write(struct file *file,
-					  const char __user *buffer,
-					  size_t count, loff_t *off)
-{
-	struct super_block *sb = ((struct seq_file *)file->private_data)->private;
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	struct cl_client_cache *cache = &sbi->ll_cache;
-	int mult, rc, pages_number;
-	int diff = 0;
-	int nrpages = 0;
-	char kernbuf[128];
-
-	if (count >= sizeof(kernbuf))
-		return -EINVAL;
-
-	if (copy_from_user(kernbuf, buffer, count))
-		return -EFAULT;
-	kernbuf[count] = 0;
-
-	mult = 1 << (20 - PAGE_CACHE_SHIFT);
-	buffer += lprocfs_find_named_value(kernbuf, "max_cached_mb:", &count) -
-		  kernbuf;
-	rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
-	if (rc)
-		return rc;
-
-	if (pages_number < 0 || pages_number > totalram_pages) {
-		CERROR("%s: can't set max cache more than %lu MB\n",
-		       ll_get_fsname(sb, NULL, 0),
-		       totalram_pages >> (20 - PAGE_CACHE_SHIFT));
-		return -ERANGE;
-	}
-
-	spin_lock(&sbi->ll_lock);
-	diff = pages_number - cache->ccc_lru_max;
-	spin_unlock(&sbi->ll_lock);
-
-	/* easy - add more LRU slots. */
-	if (diff >= 0) {
-		atomic_add(diff, &cache->ccc_lru_left);
-		rc = 0;
-		goto out;
-	}
-
-	diff = -diff;
-	while (diff > 0) {
-		int tmp;
-
-		/* reduce LRU budget from free slots. */
-		do {
-			int ov, nv;
-
-			ov = atomic_read(&cache->ccc_lru_left);
-			if (ov == 0)
-				break;
-
-			nv = ov > diff ? ov - diff : 0;
-			rc = atomic_cmpxchg(&cache->ccc_lru_left, ov, nv);
-			if (likely(ov == rc)) {
-				diff -= ov - nv;
-				nrpages += ov - nv;
-				break;
-			}
-		} while (1);
-
-		if (diff <= 0)
-			break;
-
-		if (sbi->ll_dt_exp == NULL) { /* being initialized */
-			rc = -ENODEV;
-			break;
-		}
-
-		/* difficult - have to ask OSCs to drop LRU slots. */
-		tmp = diff << 1;
-		rc = obd_set_info_async(NULL, sbi->ll_dt_exp,
-				sizeof(KEY_CACHE_LRU_SHRINK),
-				KEY_CACHE_LRU_SHRINK,
-				sizeof(tmp), &tmp, NULL);
-		if (rc < 0)
-			break;
-	}
-
-out:
-	if (rc >= 0) {
-		spin_lock(&sbi->ll_lock);
-		cache->ccc_lru_max = pages_number;
-		spin_unlock(&sbi->ll_lock);
-		rc = count;
-	} else {
-		atomic_add(nrpages, &cache->ccc_lru_left);
-	}
-	return rc;
-}
-LPROC_SEQ_FOPS(ll_max_cached_mb);
-
-static ssize_t checksum_pages_show(struct kobject *kobj, struct attribute *attr,
-				   char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
-}
-
-static ssize_t checksum_pages_store(struct kobject *kobj,
-				    struct attribute *attr,
-				    const char *buffer,
-				    size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long val;
-
-	if (!sbi->ll_dt_exp)
-		/* Not set up yet */
-		return -EAGAIN;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-	if (val)
-		sbi->ll_flags |= LL_SBI_CHECKSUM;
-	else
-		sbi->ll_flags &= ~LL_SBI_CHECKSUM;
-
-	rc = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
-				KEY_CHECKSUM, sizeof(val), &val, NULL);
-	if (rc)
-		CWARN("Failed to set OSC checksum flags: %d\n", rc);
-
-	return count;
-}
-LUSTRE_RW_ATTR(checksum_pages);
-
-static ssize_t ll_rd_track_id(struct kobject *kobj, char *buf,
-			      enum stats_track_type type)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	if (sbi->ll_stats_track_type == type)
-		return sprintf(buf, "%d\n", sbi->ll_stats_track_id);
-	else if (sbi->ll_stats_track_type == STATS_TRACK_ALL)
-		return sprintf(buf, "0 (all)\n");
-	else
-		return sprintf(buf, "untracked\n");
-}
-
-static ssize_t ll_wr_track_id(struct kobject *kobj, const char *buffer,
-			      size_t count,
-			      enum stats_track_type type)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long pid;
-
-	rc = kstrtoul(buffer, 10, &pid);
-	if (rc)
-		return rc;
-	sbi->ll_stats_track_id = pid;
-	if (pid == 0)
-		sbi->ll_stats_track_type = STATS_TRACK_ALL;
-	else
-		sbi->ll_stats_track_type = type;
-	lprocfs_clear_stats(sbi->ll_stats);
-	return count;
-}
-
-static ssize_t stats_track_pid_show(struct kobject *kobj,
-				    struct attribute *attr,
-				    char *buf)
-{
-	return ll_rd_track_id(kobj, buf, STATS_TRACK_PID);
-}
-
-static ssize_t stats_track_pid_store(struct kobject *kobj,
-				     struct attribute *attr,
-				     const char *buffer,
-				     size_t count)
-{
-	return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PID);
-}
-LUSTRE_RW_ATTR(stats_track_pid);
-
-static ssize_t stats_track_ppid_show(struct kobject *kobj,
-				     struct attribute *attr,
-				     char *buf)
-{
-	return ll_rd_track_id(kobj, buf, STATS_TRACK_PPID);
-}
-
-static ssize_t stats_track_ppid_store(struct kobject *kobj,
-				      struct attribute *attr,
-				      const char *buffer,
-				      size_t count)
-{
-	return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PPID);
-}
-LUSTRE_RW_ATTR(stats_track_ppid);
-
-static ssize_t stats_track_gid_show(struct kobject *kobj,
-				    struct attribute *attr,
-				    char *buf)
-{
-	return ll_rd_track_id(kobj, buf, STATS_TRACK_GID);
-}
-
-static ssize_t stats_track_gid_store(struct kobject *kobj,
-				     struct attribute *attr,
-				     const char *buffer,
-				     size_t count)
-{
-	return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_GID);
-}
-LUSTRE_RW_ATTR(stats_track_gid);
-
-static ssize_t statahead_max_show(struct kobject *kobj,
-				  struct attribute *attr,
-				  char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%u\n", sbi->ll_sa_max);
-}
-
-static ssize_t statahead_max_store(struct kobject *kobj,
-				   struct attribute *attr,
-				   const char *buffer,
-				   size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val <= LL_SA_RPC_MAX)
-		sbi->ll_sa_max = val;
-	else
-		CERROR("Bad statahead_max value %lu. Valid values are in the range [0, %d]\n",
-		       val, LL_SA_RPC_MAX);
-
-	return count;
-}
-LUSTRE_RW_ATTR(statahead_max);
-
-static ssize_t statahead_agl_show(struct kobject *kobj,
-				  struct attribute *attr,
-				  char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0);
-}
-
-static ssize_t statahead_agl_store(struct kobject *kobj,
-				   struct attribute *attr,
-				   const char *buffer,
-				   size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val)
-		sbi->ll_flags |= LL_SBI_AGL_ENABLED;
-	else
-		sbi->ll_flags &= ~LL_SBI_AGL_ENABLED;
-
-	return count;
-}
-LUSTRE_RW_ATTR(statahead_agl);
-
-static int ll_statahead_stats_seq_show(struct seq_file *m, void *v)
-{
-	struct super_block *sb = m->private;
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-
-	seq_printf(m,
-		   "statahead total: %u\n"
-		   "statahead wrong: %u\n"
-		   "agl total: %u\n",
-		   atomic_read(&sbi->ll_sa_total),
-		   atomic_read(&sbi->ll_sa_wrong),
-		   atomic_read(&sbi->ll_agl_total));
-	return 0;
-}
-LPROC_SEQ_FOPS_RO(ll_statahead_stats);
-
-static ssize_t lazystatfs_show(struct kobject *kobj,
-			       struct attribute *attr,
-			       char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_LAZYSTATFS ? 1 : 0);
-}
-
-static ssize_t lazystatfs_store(struct kobject *kobj,
-				struct attribute *attr,
-				const char *buffer,
-				size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val)
-		sbi->ll_flags |= LL_SBI_LAZYSTATFS;
-	else
-		sbi->ll_flags &= ~LL_SBI_LAZYSTATFS;
-
-	return count;
-}
-LUSTRE_RW_ATTR(lazystatfs);
-
-static ssize_t max_easize_show(struct kobject *kobj,
-			       struct attribute *attr,
-			       char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	unsigned int ealen;
-	int rc;
-
-	rc = ll_get_max_mdsize(sbi, &ealen);
-	if (rc)
-		return rc;
-
-	return sprintf(buf, "%u\n", ealen);
-}
-LUSTRE_RO_ATTR(max_easize);
-
-static ssize_t default_easize_show(struct kobject *kobj,
-				   struct attribute *attr,
-				   char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	unsigned int ealen;
-	int rc;
-
-	rc = ll_get_default_mdsize(sbi, &ealen);
-	if (rc)
-		return rc;
-
-	return sprintf(buf, "%u\n", ealen);
-}
-LUSTRE_RO_ATTR(default_easize);
-
-static int ll_sbi_flags_seq_show(struct seq_file *m, void *v)
-{
-	const char *str[] = LL_SBI_FLAGS;
-	struct super_block *sb = m->private;
-	int flags = ll_s2sbi(sb)->ll_flags;
-	int i = 0;
-
-	while (flags != 0) {
-		if (ARRAY_SIZE(str) <= i) {
-			CERROR("%s: Revise array LL_SBI_FLAGS to match sbi flags please.\n",
-			       ll_get_fsname(sb, NULL, 0));
-			return -EINVAL;
-		}
-
-		if (flags & 0x1)
-			seq_printf(m, "%s ", str[i]);
-		flags >>= 1;
-		++i;
-	}
-	seq_printf(m, "\b\n");
-	return 0;
-}
-LPROC_SEQ_FOPS_RO(ll_sbi_flags);
-
-static ssize_t xattr_cache_show(struct kobject *kobj,
-				struct attribute *attr,
-				char *buf)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-
-	return sprintf(buf, "%u\n", sbi->ll_xattr_cache_enabled);
-}
-
-static ssize_t xattr_cache_store(struct kobject *kobj,
-				 struct attribute *attr,
-				 const char *buffer,
-				 size_t count)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val != 0 && val != 1)
-		return -ERANGE;
-
-	if (val == 1 && !(sbi->ll_flags & LL_SBI_XATTR_CACHE))
-		return -ENOTSUPP;
-
-	sbi->ll_xattr_cache_enabled = val;
-
-	return count;
-}
-LUSTRE_RW_ATTR(xattr_cache);
-
-static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
-	/* { "mntpt_path",   ll_rd_path,	     0, 0 }, */
-	{ "site",	  &ll_site_stats_fops,    NULL, 0 },
-	/* { "filegroups",   lprocfs_rd_filegroups,  0, 0 }, */
-	{ "max_cached_mb",    &ll_max_cached_mb_fops, NULL },
-	{ "statahead_stats",  &ll_statahead_stats_fops, NULL, 0 },
-	{ "sbi_flags",	      &ll_sbi_flags_fops, NULL, 0 },
-	{ NULL }
-};
-
-#define MAX_STRING_SIZE 128
-
-static struct attribute *llite_attrs[] = {
-	&lustre_attr_blocksize.attr,
-	&lustre_attr_kbytestotal.attr,
-	&lustre_attr_kbytesfree.attr,
-	&lustre_attr_kbytesavail.attr,
-	&lustre_attr_filestotal.attr,
-	&lustre_attr_filesfree.attr,
-	&lustre_attr_client_type.attr,
-	&lustre_attr_fstype.attr,
-	&lustre_attr_uuid.attr,
-	&lustre_attr_max_read_ahead_mb.attr,
-	&lustre_attr_max_read_ahead_per_file_mb.attr,
-	&lustre_attr_max_read_ahead_whole_mb.attr,
-	&lustre_attr_checksum_pages.attr,
-	&lustre_attr_stats_track_pid.attr,
-	&lustre_attr_stats_track_ppid.attr,
-	&lustre_attr_stats_track_gid.attr,
-	&lustre_attr_statahead_max.attr,
-	&lustre_attr_statahead_agl.attr,
-	&lustre_attr_lazystatfs.attr,
-	&lustre_attr_max_easize.attr,
-	&lustre_attr_default_easize.attr,
-	&lustre_attr_xattr_cache.attr,
-	NULL,
-};
-
-static void llite_sb_release(struct kobject *kobj)
-{
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
-	complete(&sbi->ll_kobj_unregister);
-}
-
-static struct kobj_type llite_ktype = {
-	.default_attrs	= llite_attrs,
-	.sysfs_ops	= &lustre_sysfs_ops,
-	.release	= llite_sb_release,
-};
-
-static const struct llite_file_opcode {
-	__u32       opcode;
-	__u32       type;
-	const char *opname;
-} llite_opcode_table[LPROC_LL_FILE_OPCODES] = {
-	/* file operation */
-	{ LPROC_LL_DIRTY_HITS,     LPROCFS_TYPE_REGS, "dirty_pages_hits" },
-	{ LPROC_LL_DIRTY_MISSES,   LPROCFS_TYPE_REGS, "dirty_pages_misses" },
-	{ LPROC_LL_READ_BYTES,     LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
-				   "read_bytes" },
-	{ LPROC_LL_WRITE_BYTES,    LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
-				   "write_bytes" },
-	{ LPROC_LL_BRW_READ,       LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
-				   "brw_read" },
-	{ LPROC_LL_BRW_WRITE,      LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
-				   "brw_write" },
-	{ LPROC_LL_OSC_READ,       LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
-				   "osc_read" },
-	{ LPROC_LL_OSC_WRITE,      LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
-				   "osc_write" },
-	{ LPROC_LL_IOCTL,	  LPROCFS_TYPE_REGS, "ioctl" },
-	{ LPROC_LL_OPEN,	   LPROCFS_TYPE_REGS, "open" },
-	{ LPROC_LL_RELEASE,	LPROCFS_TYPE_REGS, "close" },
-	{ LPROC_LL_MAP,	    LPROCFS_TYPE_REGS, "mmap" },
-	{ LPROC_LL_LLSEEK,	 LPROCFS_TYPE_REGS, "seek" },
-	{ LPROC_LL_FSYNC,	  LPROCFS_TYPE_REGS, "fsync" },
-	{ LPROC_LL_READDIR,	LPROCFS_TYPE_REGS, "readdir" },
-	/* inode operation */
-	{ LPROC_LL_SETATTR,	LPROCFS_TYPE_REGS, "setattr" },
-	{ LPROC_LL_TRUNC,	  LPROCFS_TYPE_REGS, "truncate" },
-	{ LPROC_LL_FLOCK,	  LPROCFS_TYPE_REGS, "flock" },
-	{ LPROC_LL_GETATTR,	LPROCFS_TYPE_REGS, "getattr" },
-	/* dir inode operation */
-	{ LPROC_LL_CREATE,	 LPROCFS_TYPE_REGS, "create" },
-	{ LPROC_LL_LINK,	   LPROCFS_TYPE_REGS, "link" },
-	{ LPROC_LL_UNLINK,	 LPROCFS_TYPE_REGS, "unlink" },
-	{ LPROC_LL_SYMLINK,	LPROCFS_TYPE_REGS, "symlink" },
-	{ LPROC_LL_MKDIR,	  LPROCFS_TYPE_REGS, "mkdir" },
-	{ LPROC_LL_RMDIR,	  LPROCFS_TYPE_REGS, "rmdir" },
-	{ LPROC_LL_MKNOD,	  LPROCFS_TYPE_REGS, "mknod" },
-	{ LPROC_LL_RENAME,	 LPROCFS_TYPE_REGS, "rename" },
-	/* special inode operation */
-	{ LPROC_LL_STAFS,	  LPROCFS_TYPE_REGS, "statfs" },
-	{ LPROC_LL_ALLOC_INODE,    LPROCFS_TYPE_REGS, "alloc_inode" },
-	{ LPROC_LL_SETXATTR,       LPROCFS_TYPE_REGS, "setxattr" },
-	{ LPROC_LL_GETXATTR,       LPROCFS_TYPE_REGS, "getxattr" },
-	{ LPROC_LL_GETXATTR_HITS,  LPROCFS_TYPE_REGS, "getxattr_hits" },
-	{ LPROC_LL_LISTXATTR,      LPROCFS_TYPE_REGS, "listxattr" },
-	{ LPROC_LL_REMOVEXATTR,    LPROCFS_TYPE_REGS, "removexattr" },
-	{ LPROC_LL_INODE_PERM,     LPROCFS_TYPE_REGS, "inode_permission" },
-};
-
-void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count)
-{
-	if (!sbi->ll_stats)
-		return;
-	if (sbi->ll_stats_track_type == STATS_TRACK_ALL)
-		lprocfs_counter_add(sbi->ll_stats, op, count);
-	else if (sbi->ll_stats_track_type == STATS_TRACK_PID &&
-		 sbi->ll_stats_track_id == current->pid)
-		lprocfs_counter_add(sbi->ll_stats, op, count);
-	else if (sbi->ll_stats_track_type == STATS_TRACK_PPID &&
-		 sbi->ll_stats_track_id == current->real_parent->pid)
-		lprocfs_counter_add(sbi->ll_stats, op, count);
-	else if (sbi->ll_stats_track_type == STATS_TRACK_GID &&
-		 sbi->ll_stats_track_id ==
-			from_kgid(&init_user_ns, current_gid()))
-		lprocfs_counter_add(sbi->ll_stats, op, count);
-}
-EXPORT_SYMBOL(ll_stats_ops_tally);
-
-static const char *ra_stat_string[] = {
-	[RA_STAT_HIT] = "hits",
-	[RA_STAT_MISS] = "misses",
-	[RA_STAT_DISTANT_READPAGE] = "readpage not consecutive",
-	[RA_STAT_MISS_IN_WINDOW] = "miss inside window",
-	[RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page",
-	[RA_STAT_FAILED_MATCH] = "failed lock match",
-	[RA_STAT_DISCARDED] = "read but discarded",
-	[RA_STAT_ZERO_LEN] = "zero length file",
-	[RA_STAT_ZERO_WINDOW] = "zero size window",
-	[RA_STAT_EOF] = "read-ahead to EOF",
-	[RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue",
-	[RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page",
-};
-
-int ldebugfs_register_mountpoint(struct dentry *parent,
-				 struct super_block *sb, char *osc, char *mdc)
-{
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct ll_sb_info *sbi = ll_s2sbi(sb);
-	struct obd_device *obd;
-	struct dentry *dir;
-	char name[MAX_STRING_SIZE + 1], *ptr;
-	int err, id, len, rc;
-
-
-	name[MAX_STRING_SIZE] = '\0';
-
-	LASSERT(sbi != NULL);
-	LASSERT(mdc != NULL);
-	LASSERT(osc != NULL);
-
-	/* Get fsname */
-	len = strlen(lsi->lsi_lmd->lmd_profile);
-	ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
-	if (ptr && (strcmp(ptr, "-client") == 0))
-		len -= 7;
-
-	/* Mount info */
-	snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len,
-		 lsi->lsi_lmd->lmd_profile, sb);
-
-	dir = ldebugfs_register(name, parent, NULL, NULL);
-	if (IS_ERR_OR_NULL(dir)) {
-		err = dir ? PTR_ERR(dir) : -ENOMEM;
-		sbi->ll_debugfs_entry = NULL;
-		return err;
-	}
-	sbi->ll_debugfs_entry = dir;
-
-	rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "dump_page_cache", 0444,
-				 &vvp_dump_pgcache_file_ops, sbi);
-	if (rc)
-		CWARN("Error adding the dump_page_cache file\n");
-
-	rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "extents_stats", 0644,
-				 &ll_rw_extents_stats_fops, sbi);
-	if (rc)
-		CWARN("Error adding the extent_stats file\n");
-
-	rc = ldebugfs_seq_create(sbi->ll_debugfs_entry,
-				  "extents_stats_per_process",
-				 0644, &ll_rw_extents_stats_pp_fops, sbi);
-	if (rc)
-		CWARN("Error adding the extents_stats_per_process file\n");
-
-	rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "offset_stats", 0644,
-				 &ll_rw_offset_stats_fops, sbi);
-	if (rc)
-		CWARN("Error adding the offset_stats file\n");
-
-	/* File operations stats */
-	sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES,
-					    LPROCFS_STATS_FLAG_NONE);
-	if (sbi->ll_stats == NULL) {
-		err = -ENOMEM;
-		goto out;
-	}
-	/* do counter init */
-	for (id = 0; id < LPROC_LL_FILE_OPCODES; id++) {
-		__u32 type = llite_opcode_table[id].type;
-		void *ptr = NULL;
-		if (type & LPROCFS_TYPE_REGS)
-			ptr = "regs";
-		else if (type & LPROCFS_TYPE_BYTES)
-			ptr = "bytes";
-		else if (type & LPROCFS_TYPE_PAGES)
-			ptr = "pages";
-		lprocfs_counter_init(sbi->ll_stats,
-				     llite_opcode_table[id].opcode,
-				     (type & LPROCFS_CNTR_AVGMINMAX),
-				     llite_opcode_table[id].opname, ptr);
-	}
-	err = ldebugfs_register_stats(sbi->ll_debugfs_entry, "stats",
-				     sbi->ll_stats);
-	if (err)
-		goto out;
-
-	sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string),
-					       LPROCFS_STATS_FLAG_NONE);
-	if (sbi->ll_ra_stats == NULL) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	for (id = 0; id < ARRAY_SIZE(ra_stat_string); id++)
-		lprocfs_counter_init(sbi->ll_ra_stats, id, 0,
-				     ra_stat_string[id], "pages");
-
-	err = ldebugfs_register_stats(sbi->ll_debugfs_entry, "read_ahead_stats",
-				     sbi->ll_ra_stats);
-	if (err)
-		goto out;
-
-
-	err = ldebugfs_add_vars(sbi->ll_debugfs_entry,
-				lprocfs_llite_obd_vars, sb);
-	if (err)
-		goto out;
-
-	sbi->ll_kobj.kset = llite_kset;
-	init_completion(&sbi->ll_kobj_unregister);
-	err = kobject_init_and_add(&sbi->ll_kobj, &llite_ktype, NULL,
-				   "%s", name);
-	if (err)
-		goto out;
-
-	/* MDC info */
-	obd = class_name2obd(mdc);
-
-	err = sysfs_create_link(&sbi->ll_kobj, &obd->obd_kobj,
-				obd->obd_type->typ_name);
-	if (err)
-		goto out;
-
-	/* OSC */
-	obd = class_name2obd(osc);
-
-	err = sysfs_create_link(&sbi->ll_kobj, &obd->obd_kobj,
-				obd->obd_type->typ_name);
-out:
-	if (err) {
-		ldebugfs_remove(&sbi->ll_debugfs_entry);
-		lprocfs_free_stats(&sbi->ll_ra_stats);
-		lprocfs_free_stats(&sbi->ll_stats);
-	}
-	return err;
-}
-
-void ldebugfs_unregister_mountpoint(struct ll_sb_info *sbi)
-{
-	if (sbi->ll_debugfs_entry) {
-		ldebugfs_remove(&sbi->ll_debugfs_entry);
-		kobject_put(&sbi->ll_kobj);
-		wait_for_completion(&sbi->ll_kobj_unregister);
-		lprocfs_free_stats(&sbi->ll_ra_stats);
-		lprocfs_free_stats(&sbi->ll_stats);
-	}
-}
-#undef MAX_STRING_SIZE
-
-#define pct(a, b) (b ? a * 100 / b : 0)
-
-static void ll_display_extents_info(struct ll_rw_extents_info *io_extents,
-				   struct seq_file *seq, int which)
-{
-	unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
-	unsigned long start, end, r, w;
-	char *unitp = "KMGTPEZY";
-	int i, units = 10;
-	struct per_process_info *pp_info = &io_extents->pp_extents[which];
-
-	read_cum = 0;
-	write_cum = 0;
-	start = 0;
-
-	for (i = 0; i < LL_HIST_MAX; i++) {
-		read_tot += pp_info->pp_r_hist.oh_buckets[i];
-		write_tot += pp_info->pp_w_hist.oh_buckets[i];
-	}
-
-	for (i = 0; i < LL_HIST_MAX; i++) {
-		r = pp_info->pp_r_hist.oh_buckets[i];
-		w = pp_info->pp_w_hist.oh_buckets[i];
-		read_cum += r;
-		write_cum += w;
-		end = 1 << (i + LL_HIST_START - units);
-		seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4lu %4lu  | %14lu %4lu %4lu\n",
-			   start, *unitp, end, *unitp,
-			   (i == LL_HIST_MAX - 1) ? '+' : ' ',
-			   r, pct(r, read_tot), pct(read_cum, read_tot),
-			   w, pct(w, write_tot), pct(write_cum, write_tot));
-		start = end;
-		if (start == 1<<10) {
-			start = 1;
-			units += 10;
-			unitp++;
-		}
-		if (read_cum == read_tot && write_cum == write_tot)
-			break;
-	}
-}
-
-static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v)
-{
-	struct timeval now;
-	struct ll_sb_info *sbi = seq->private;
-	struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
-	int k;
-
-	do_gettimeofday(&now);
-
-	if (!sbi->ll_rw_stats_on) {
-		seq_printf(seq, "disabled\n"
-			   "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n");
-		return 0;
-	}
-	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, (unsigned long)now.tv_usec);
-	seq_printf(seq, "%15s %19s       | %20s\n", " ", "read", "write");
-	seq_printf(seq, "%13s   %14s %4s %4s  | %14s %4s %4s\n",
-		   "extents", "calls", "%", "cum%",
-		   "calls", "%", "cum%");
-	spin_lock(&sbi->ll_pp_extent_lock);
-	for (k = 0; k < LL_PROCESS_HIST_MAX; k++) {
-		if (io_extents->pp_extents[k].pid != 0) {
-			seq_printf(seq, "\nPID: %d\n",
-				   io_extents->pp_extents[k].pid);
-			ll_display_extents_info(io_extents, seq, k);
-		}
-	}
-	spin_unlock(&sbi->ll_pp_extent_lock);
-	return 0;
-}
-
-static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file,
-						const char __user *buf,
-						size_t len,
-						loff_t *off)
-{
-	struct seq_file *seq = file->private_data;
-	struct ll_sb_info *sbi = seq->private;
-	struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
-	int i;
-	int value = 1, rc = 0;
-
-	if (len == 0)
-		return -EINVAL;
-
-	rc = lprocfs_write_helper(buf, len, &value);
-	if (rc < 0 && len < 16) {
-		char kernbuf[16];
-
-		if (copy_from_user(kernbuf, buf, len))
-			return -EFAULT;
-		kernbuf[len] = 0;
-
-		if (kernbuf[len - 1] == '\n')
-			kernbuf[len - 1] = 0;
-
-		if (strcmp(kernbuf, "disabled") == 0 ||
-		    strcmp(kernbuf, "Disabled") == 0)
-			value = 0;
-	}
-
-	if (value == 0)
-		sbi->ll_rw_stats_on = 0;
-	else
-		sbi->ll_rw_stats_on = 1;
-
-	spin_lock(&sbi->ll_pp_extent_lock);
-	for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
-		io_extents->pp_extents[i].pid = 0;
-		lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
-		lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
-	}
-	spin_unlock(&sbi->ll_pp_extent_lock);
-	return len;
-}
-
-LPROC_SEQ_FOPS(ll_rw_extents_stats_pp);
-
-static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v)
-{
-	struct timeval now;
-	struct ll_sb_info *sbi = seq->private;
-	struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
-
-	do_gettimeofday(&now);
-
-	if (!sbi->ll_rw_stats_on) {
-		seq_printf(seq, "disabled\n"
-			   "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n");
-		return 0;
-	}
-	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, (unsigned long)now.tv_usec);
-
-	seq_printf(seq, "%15s %19s       | %20s\n", " ", "read", "write");
-	seq_printf(seq, "%13s   %14s %4s %4s  | %14s %4s %4s\n",
-		   "extents", "calls", "%", "cum%",
-		   "calls", "%", "cum%");
-	spin_lock(&sbi->ll_lock);
-	ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX);
-	spin_unlock(&sbi->ll_lock);
-
-	return 0;
-}
-
-static ssize_t ll_rw_extents_stats_seq_write(struct file *file,
-					     const char __user *buf,
-					     size_t len, loff_t *off)
-{
-	struct seq_file *seq = file->private_data;
-	struct ll_sb_info *sbi = seq->private;
-	struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
-	int i;
-	int value = 1, rc = 0;
-
-	if (len == 0)
-		return -EINVAL;
-
-	rc = lprocfs_write_helper(buf, len, &value);
-	if (rc < 0 && len < 16) {
-		char kernbuf[16];
-
-		if (copy_from_user(kernbuf, buf, len))
-			return -EFAULT;
-		kernbuf[len] = 0;
-
-		if (kernbuf[len - 1] == '\n')
-			kernbuf[len - 1] = 0;
-
-		if (strcmp(kernbuf, "disabled") == 0 ||
-		    strcmp(kernbuf, "Disabled") == 0)
-			value = 0;
-	}
-
-	if (value == 0)
-		sbi->ll_rw_stats_on = 0;
-	else
-		sbi->ll_rw_stats_on = 1;
-
-	spin_lock(&sbi->ll_pp_extent_lock);
-	for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
-		io_extents->pp_extents[i].pid = 0;
-		lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
-		lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
-	}
-	spin_unlock(&sbi->ll_pp_extent_lock);
-
-	return len;
-}
-LPROC_SEQ_FOPS(ll_rw_extents_stats);
-
-void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
-		       struct ll_file_data *file, loff_t pos,
-		       size_t count, int rw)
-{
-	int i, cur = -1;
-	struct ll_rw_process_info *process;
-	struct ll_rw_process_info *offset;
-	int *off_count = &sbi->ll_rw_offset_entry_count;
-	int *process_count = &sbi->ll_offset_process_count;
-	struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
-
-	if (!sbi->ll_rw_stats_on)
-		return;
-	process = sbi->ll_rw_process_info;
-	offset = sbi->ll_rw_offset_info;
-
-	spin_lock(&sbi->ll_pp_extent_lock);
-	/* Extent statistics */
-	for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
-		if (io_extents->pp_extents[i].pid == pid) {
-			cur = i;
-			break;
-		}
-	}
-
-	if (cur == -1) {
-		/* new process */
-		sbi->ll_extent_process_count =
-			(sbi->ll_extent_process_count + 1) % LL_PROCESS_HIST_MAX;
-		cur = sbi->ll_extent_process_count;
-		io_extents->pp_extents[cur].pid = pid;
-		lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_r_hist);
-		lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist);
-	}
-
-	for(i = 0; (count >= (1 << LL_HIST_START << i)) &&
-	     (i < (LL_HIST_MAX - 1)); i++);
-	if (rw == 0) {
-		io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++;
-		io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++;
-	} else {
-		io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++;
-		io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++;
-	}
-	spin_unlock(&sbi->ll_pp_extent_lock);
-
-	spin_lock(&sbi->ll_process_lock);
-	/* Offset statistics */
-	for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
-		if (process[i].rw_pid == pid) {
-			if (process[i].rw_last_file != file) {
-				process[i].rw_range_start = pos;
-				process[i].rw_last_file_pos = pos + count;
-				process[i].rw_smallest_extent = count;
-				process[i].rw_largest_extent = count;
-				process[i].rw_offset = 0;
-				process[i].rw_last_file = file;
-				spin_unlock(&sbi->ll_process_lock);
-				return;
-			}
-			if (process[i].rw_last_file_pos != pos) {
-				*off_count =
-				    (*off_count + 1) % LL_OFFSET_HIST_MAX;
-				offset[*off_count].rw_op = process[i].rw_op;
-				offset[*off_count].rw_pid = pid;
-				offset[*off_count].rw_range_start =
-					process[i].rw_range_start;
-				offset[*off_count].rw_range_end =
-					process[i].rw_last_file_pos;
-				offset[*off_count].rw_smallest_extent =
-					process[i].rw_smallest_extent;
-				offset[*off_count].rw_largest_extent =
-					process[i].rw_largest_extent;
-				offset[*off_count].rw_offset =
-					process[i].rw_offset;
-				process[i].rw_op = rw;
-				process[i].rw_range_start = pos;
-				process[i].rw_smallest_extent = count;
-				process[i].rw_largest_extent = count;
-				process[i].rw_offset = pos -
-					process[i].rw_last_file_pos;
-			}
-			if (process[i].rw_smallest_extent > count)
-				process[i].rw_smallest_extent = count;
-			if (process[i].rw_largest_extent < count)
-				process[i].rw_largest_extent = count;
-			process[i].rw_last_file_pos = pos + count;
-			spin_unlock(&sbi->ll_process_lock);
-			return;
-		}
-	}
-	*process_count = (*process_count + 1) % LL_PROCESS_HIST_MAX;
-	process[*process_count].rw_pid = pid;
-	process[*process_count].rw_op = rw;
-	process[*process_count].rw_range_start = pos;
-	process[*process_count].rw_last_file_pos = pos + count;
-	process[*process_count].rw_smallest_extent = count;
-	process[*process_count].rw_largest_extent = count;
-	process[*process_count].rw_offset = 0;
-	process[*process_count].rw_last_file = file;
-	spin_unlock(&sbi->ll_process_lock);
-}
-
-static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v)
-{
-	struct timeval now;
-	struct ll_sb_info *sbi = seq->private;
-	struct ll_rw_process_info *offset = sbi->ll_rw_offset_info;
-	struct ll_rw_process_info *process = sbi->ll_rw_process_info;
-	int i;
-
-	do_gettimeofday(&now);
-
-	if (!sbi->ll_rw_stats_on) {
-		seq_printf(seq, "disabled\n"
-			   "write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n");
-		return 0;
-	}
-	spin_lock(&sbi->ll_process_lock);
-
-	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, (unsigned long)now.tv_usec);
-	seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n",
-		   "R/W", "PID", "RANGE START", "RANGE END",
-		   "SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET");
-	/* We stored the discontiguous offsets here; print them first */
-	for (i = 0; i < LL_OFFSET_HIST_MAX; i++) {
-		if (offset[i].rw_pid != 0)
-			seq_printf(seq,
-				   "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
-				   offset[i].rw_op == READ ? 'R' : 'W',
-				   offset[i].rw_pid,
-				   offset[i].rw_range_start,
-				   offset[i].rw_range_end,
-				   (unsigned long)offset[i].rw_smallest_extent,
-				   (unsigned long)offset[i].rw_largest_extent,
-				   offset[i].rw_offset);
-	}
-	/* Then print the current offsets for each process */
-	for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
-		if (process[i].rw_pid != 0)
-			seq_printf(seq,
-				   "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
-				   process[i].rw_op == READ ? 'R' : 'W',
-				   process[i].rw_pid,
-				   process[i].rw_range_start,
-				   process[i].rw_last_file_pos,
-				   (unsigned long)process[i].rw_smallest_extent,
-				   (unsigned long)process[i].rw_largest_extent,
-				   process[i].rw_offset);
-	}
-	spin_unlock(&sbi->ll_process_lock);
-
-	return 0;
-}
-
-static ssize_t ll_rw_offset_stats_seq_write(struct file *file,
-					    const char __user *buf,
-					    size_t len, loff_t *off)
-{
-	struct seq_file *seq = file->private_data;
-	struct ll_sb_info *sbi = seq->private;
-	struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
-	struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
-	int value = 1, rc = 0;
-
-	if (len == 0)
-		return -EINVAL;
-
-	rc = lprocfs_write_helper(buf, len, &value);
-
-	if (rc < 0 && len < 16) {
-		char kernbuf[16];
-
-		if (copy_from_user(kernbuf, buf, len))
-			return -EFAULT;
-		kernbuf[len] = 0;
-
-		if (kernbuf[len - 1] == '\n')
-			kernbuf[len - 1] = 0;
-
-		if (strcmp(kernbuf, "disabled") == 0 ||
-		    strcmp(kernbuf, "Disabled") == 0)
-			value = 0;
-	}
-
-	if (value == 0)
-		sbi->ll_rw_stats_on = 0;
-	else
-		sbi->ll_rw_stats_on = 1;
-
-	spin_lock(&sbi->ll_process_lock);
-	sbi->ll_offset_process_count = 0;
-	sbi->ll_rw_offset_entry_count = 0;
-	memset(process_info, 0, sizeof(struct ll_rw_process_info) *
-	       LL_PROCESS_HIST_MAX);
-	memset(offset_info, 0, sizeof(struct ll_rw_process_info) *
-	       LL_OFFSET_HIST_MAX);
-	spin_unlock(&sbi->ll_process_lock);
-
-	return len;
-}
-
-LPROC_SEQ_FOPS(ll_rw_offset_stats);
-
-void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars)
-{
-    lvars->obd_vars     = lprocfs_llite_obd_vars;
-}
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
deleted file mode 100644
index 05e7dc85989e..000000000000
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ /dev/null
@@ -1,1176 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/quotaops.h>
-#include <linux/highmem.h>
-#include <linux/pagemap.h>
-#include <linux/security.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/obd_support.h"
-#include "../include/lustre_fid.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_ver.h"
-#include "llite_internal.h"
-
-static int ll_create_it(struct inode *, struct dentry *,
-			int, struct lookup_intent *);
-
-/* called from iget5_locked->find_inode() under inode_hash_lock spinlock */
-static int ll_test_inode(struct inode *inode, void *opaque)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct lustre_md     *md = opaque;
-
-	if (unlikely(!(md->body->valid & OBD_MD_FLID))) {
-		CERROR("MDS body missing FID\n");
-		return 0;
-	}
-
-	if (!lu_fid_eq(&lli->lli_fid, &md->body->fid1))
-		return 0;
-
-	return 1;
-}
-
-static int ll_set_inode(struct inode *inode, void *opaque)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct mdt_body *body = ((struct lustre_md *)opaque)->body;
-
-	if (unlikely(!(body->valid & OBD_MD_FLID))) {
-		CERROR("MDS body missing FID\n");
-		return -EINVAL;
-	}
-
-	lli->lli_fid = body->fid1;
-	if (unlikely(!(body->valid & OBD_MD_FLTYPE))) {
-		CERROR("Can not initialize inode " DFID
-		       " without object type: valid = %#llx\n",
-		       PFID(&lli->lli_fid), body->valid);
-		return -EINVAL;
-	}
-
-	inode->i_mode = (inode->i_mode & ~S_IFMT) | (body->mode & S_IFMT);
-	if (unlikely(inode->i_mode == 0)) {
-		CERROR("Invalid inode "DFID" type\n", PFID(&lli->lli_fid));
-		return -EINVAL;
-	}
-
-	ll_lli_init(lli);
-
-	return 0;
-}
-
-
-/*
- * Get an inode by inode number (already instantiated by the intent lookup).
- * Returns inode or NULL
- */
-struct inode *ll_iget(struct super_block *sb, ino_t hash,
-		      struct lustre_md *md)
-{
-	struct inode	 *inode;
-
-	LASSERT(hash != 0);
-	inode = iget5_locked(sb, hash, ll_test_inode, ll_set_inode, md);
-
-	if (inode) {
-		if (inode->i_state & I_NEW) {
-			int rc = 0;
-
-			ll_read_inode2(inode, md);
-			if (S_ISREG(inode->i_mode) &&
-			    ll_i2info(inode)->lli_clob == NULL) {
-				CDEBUG(D_INODE,
-					"%s: apply lsm %p to inode "DFID".\n",
-					ll_get_fsname(sb, NULL, 0), md->lsm,
-					PFID(ll_inode2fid(inode)));
-				rc = cl_file_inode_init(inode, md);
-			}
-			if (rc != 0) {
-				make_bad_inode(inode);
-				unlock_new_inode(inode);
-				iput(inode);
-				inode = ERR_PTR(rc);
-			} else
-				unlock_new_inode(inode);
-		} else if (!(inode->i_state & (I_FREEING | I_CLEAR)))
-			ll_update_inode(inode, md);
-		CDEBUG(D_VFSTRACE, "got inode: %p for "DFID"\n",
-		       inode, PFID(&md->body->fid1));
-	}
-	return inode;
-}
-
-static void ll_invalidate_negative_children(struct inode *dir)
-{
-	struct dentry *dentry, *tmp_subdir;
-
-	ll_lock_dcache(dir);
-	hlist_for_each_entry(dentry, &dir->i_dentry, d_u.d_alias) {
-		spin_lock(&dentry->d_lock);
-		if (!list_empty(&dentry->d_subdirs)) {
-			struct dentry *child;
-
-			list_for_each_entry_safe(child, tmp_subdir,
-						 &dentry->d_subdirs,
-						 d_child) {
-				if (d_really_is_negative(child))
-					d_lustre_invalidate(child, 1);
-			}
-		}
-		spin_unlock(&dentry->d_lock);
-	}
-	ll_unlock_dcache(dir);
-}
-
-int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
-		       void *data, int flag)
-{
-	struct lustre_handle lockh;
-	int rc;
-
-	switch (flag) {
-	case LDLM_CB_BLOCKING:
-		ldlm_lock2handle(lock, &lockh);
-		rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
-		if (rc < 0) {
-			CDEBUG(D_INODE, "ldlm_cli_cancel: rc = %d\n", rc);
-			return rc;
-		}
-		break;
-	case LDLM_CB_CANCELING: {
-		struct inode *inode = ll_inode_from_resource_lock(lock);
-		__u64 bits = lock->l_policy_data.l_inodebits.bits;
-
-		/* Inode is set to lock->l_resource->lr_lvb_inode
-		 * for mdc - bug 24555 */
-		LASSERT(lock->l_ast_data == NULL);
-
-		if (inode == NULL)
-			break;
-
-		/* Invalidate all dentries associated with this inode */
-		LASSERT(lock->l_flags & LDLM_FL_CANCELING);
-
-		if (!fid_res_name_eq(ll_inode2fid(inode),
-				     &lock->l_resource->lr_name)) {
-			LDLM_ERROR(lock, "data mismatch with object "DFID"(%p)",
-				   PFID(ll_inode2fid(inode)), inode);
-			LBUG();
-		}
-
-		if (bits & MDS_INODELOCK_XATTR) {
-			ll_xattr_cache_destroy(inode);
-			bits &= ~MDS_INODELOCK_XATTR;
-		}
-
-		/* For OPEN locks we differentiate between lock modes
-		 * LCK_CR, LCK_CW, LCK_PR - bug 22891 */
-		if (bits & MDS_INODELOCK_OPEN)
-			ll_have_md_lock(inode, &bits, lock->l_req_mode);
-
-		if (bits & MDS_INODELOCK_OPEN) {
-			fmode_t fmode;
-
-			switch (lock->l_req_mode) {
-			case LCK_CW:
-				fmode = FMODE_WRITE;
-				break;
-			case LCK_PR:
-				fmode = FMODE_EXEC;
-				break;
-			case LCK_CR:
-				fmode = FMODE_READ;
-				break;
-			default:
-				LDLM_ERROR(lock, "bad lock mode for OPEN lock");
-				LBUG();
-			}
-
-			ll_md_real_close(inode, fmode);
-		}
-
-		if (bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE |
-			    MDS_INODELOCK_LAYOUT | MDS_INODELOCK_PERM))
-			ll_have_md_lock(inode, &bits, LCK_MINMODE);
-
-		if (bits & MDS_INODELOCK_LAYOUT) {
-			struct cl_object_conf conf = {
-				.coc_opc = OBJECT_CONF_INVALIDATE,
-				.coc_inode = inode,
-			};
-
-			rc = ll_layout_conf(inode, &conf);
-			if (rc < 0)
-				CDEBUG(D_INODE, "cannot invalidate layout of "
-				       DFID": rc = %d\n",
-				       PFID(ll_inode2fid(inode)), rc);
-		}
-
-		if (bits & MDS_INODELOCK_UPDATE) {
-			struct ll_inode_info *lli = ll_i2info(inode);
-
-			spin_lock(&lli->lli_lock);
-			lli->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
-			spin_unlock(&lli->lli_lock);
-		}
-
-		if ((bits & MDS_INODELOCK_UPDATE) && S_ISDIR(inode->i_mode)) {
-			CDEBUG(D_INODE, "invalidating inode %lu\n",
-			       inode->i_ino);
-			truncate_inode_pages(inode->i_mapping, 0);
-			ll_invalidate_negative_children(inode);
-		}
-
-		if ((bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM)) &&
-		    inode->i_sb->s_root != NULL &&
-		    !is_root_inode(inode))
-			ll_invalidate_aliases(inode);
-
-		iput(inode);
-		break;
-	}
-	default:
-		LBUG();
-	}
-
-	return 0;
-}
-
-__u32 ll_i2suppgid(struct inode *i)
-{
-	if (in_group_p(i->i_gid))
-		return (__u32)from_kgid(&init_user_ns, i->i_gid);
-	else
-		return (__u32)(-1);
-}
-
-/* Pack the required supplementary groups into the supplied groups array.
- * If we don't need to use the groups from the target inode(s) then we
- * instead pack one or more groups from the user's supplementary group
- * array in case it might be useful.  Not needed if doing an MDS-side upcall. */
-void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
-{
-#if 0
-	int i;
-#endif
-
-	LASSERT(i1 != NULL);
-	LASSERT(suppgids != NULL);
-
-	suppgids[0] = ll_i2suppgid(i1);
-
-	if (i2)
-		suppgids[1] = ll_i2suppgid(i2);
-		else
-			suppgids[1] = -1;
-
-#if 0
-	for (i = 0; i < current_ngroups; i++) {
-		if (suppgids[0] == -1) {
-			if (current_groups[i] != suppgids[1])
-				suppgids[0] = current_groups[i];
-			continue;
-		}
-		if (suppgids[1] == -1) {
-			if (current_groups[i] != suppgids[0])
-				suppgids[1] = current_groups[i];
-			continue;
-		}
-		break;
-	}
-#endif
-}
-
-/*
- * try to reuse three types of dentry:
- * 1. unhashed alias, this one is unhashed by d_invalidate (but it may be valid
- *    by concurrent .revalidate).
- * 2. INVALID alias (common case for no valid ldlm lock held, but this flag may
- *    be cleared by others calling d_lustre_revalidate).
- * 3. DISCONNECTED alias.
- */
-static struct dentry *ll_find_alias(struct inode *inode, struct dentry *dentry)
-{
-	struct dentry *alias, *discon_alias, *invalid_alias;
-
-	if (hlist_empty(&inode->i_dentry))
-		return NULL;
-
-	discon_alias = invalid_alias = NULL;
-
-	ll_lock_dcache(inode);
-	hlist_for_each_entry(alias, &inode->i_dentry, d_u.d_alias) {
-		LASSERT(alias != dentry);
-
-		spin_lock(&alias->d_lock);
-		if (alias->d_flags & DCACHE_DISCONNECTED)
-			/* LASSERT(last_discon == NULL); LU-405, bz 20055 */
-			discon_alias = alias;
-		else if (alias->d_parent == dentry->d_parent	     &&
-			 alias->d_name.hash == dentry->d_name.hash       &&
-			 alias->d_name.len == dentry->d_name.len	 &&
-			 memcmp(alias->d_name.name, dentry->d_name.name,
-				dentry->d_name.len) == 0)
-			invalid_alias = alias;
-		spin_unlock(&alias->d_lock);
-
-		if (invalid_alias)
-			break;
-	}
-	alias = invalid_alias ?: discon_alias ?: NULL;
-	if (alias) {
-		spin_lock(&alias->d_lock);
-		dget_dlock(alias);
-		spin_unlock(&alias->d_lock);
-	}
-	ll_unlock_dcache(inode);
-
-	return alias;
-}
-
-/*
- * Similar to d_splice_alias(), but lustre treats invalid alias
- * similar to DCACHE_DISCONNECTED, and tries to use it anyway.
- */
-struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de)
-{
-	struct dentry *new;
-	int rc;
-
-	if (inode) {
-		new = ll_find_alias(inode, de);
-		if (new) {
-			rc = ll_d_init(new);
-			if (rc < 0) {
-				dput(new);
-				return ERR_PTR(rc);
-			}
-			d_move(new, de);
-			iput(inode);
-			CDEBUG(D_DENTRY,
-			       "Reuse dentry %p inode %p refc %d flags %#x\n",
-			      new, d_inode(new), d_count(new), new->d_flags);
-			return new;
-		}
-	}
-	rc = ll_d_init(de);
-	if (rc < 0)
-		return ERR_PTR(rc);
-	d_add(de, inode);
-	CDEBUG(D_DENTRY, "Add dentry %p inode %p refc %d flags %#x\n",
-	       de, d_inode(de), d_count(de), de->d_flags);
-	return de;
-}
-
-static int ll_lookup_it_finish(struct ptlrpc_request *request,
-			       struct lookup_intent *it,
-			       struct inode *parent, struct dentry **de)
-{
-	struct inode *inode = NULL;
-	__u64 bits = 0;
-	int rc;
-
-	/* NB 1 request reference will be taken away by ll_intent_lock()
-	 * when I return */
-	CDEBUG(D_DENTRY, "it %p it_disposition %x\n", it,
-	       it->d.lustre.it_disposition);
-	if (!it_disposition(it, DISP_LOOKUP_NEG)) {
-		rc = ll_prep_inode(&inode, request, (*de)->d_sb, it);
-		if (rc)
-			return rc;
-
-		ll_set_lock_data(ll_i2sbi(parent)->ll_md_exp, inode, it, &bits);
-
-		/* We used to query real size from OSTs here, but actually
-		   this is not needed. For stat() calls size would be updated
-		   from subsequent do_revalidate()->ll_inode_revalidate_it() in
-		   2.4 and
-		   vfs_getattr_it->ll_getattr()->ll_inode_revalidate_it() in 2.6
-		   Everybody else who needs correct file size would call
-		   ll_glimpse_size or some equivalent themselves anyway.
-		   Also see bug 7198. */
-	}
-
-	/* Only hash *de if it is unhashed (new dentry).
-	 * Atoimc_open may passing hashed dentries for open.
-	 */
-	if (d_unhashed(*de)) {
-		struct dentry *alias;
-
-		alias = ll_splice_alias(inode, *de);
-		if (IS_ERR(alias))
-			return PTR_ERR(alias);
-		*de = alias;
-	} else if (!it_disposition(it, DISP_LOOKUP_NEG)  &&
-		   !it_disposition(it, DISP_OPEN_CREATE)) {
-		/* With DISP_OPEN_CREATE dentry will
-		   instantiated in ll_create_it. */
-		LASSERT(d_inode(*de) == NULL);
-		d_instantiate(*de, inode);
-	}
-
-	if (!it_disposition(it, DISP_LOOKUP_NEG)) {
-		/* we have lookup look - unhide dentry */
-		if (bits & MDS_INODELOCK_LOOKUP)
-			d_lustre_revalidate(*de);
-	} else if (!it_disposition(it, DISP_OPEN_CREATE)) {
-		/* If file created on server, don't depend on parent UPDATE
-		 * lock to unhide it. It is left hidden and next lookup can
-		 * find it in ll_splice_alias.
-		 */
-		/* Check that parent has UPDATE lock. */
-		struct lookup_intent parent_it = {
-					.it_op = IT_GETATTR,
-					.d.lustre.it_lock_handle = 0 };
-
-		if (md_revalidate_lock(ll_i2mdexp(parent), &parent_it,
-				       &ll_i2info(parent)->lli_fid, NULL)) {
-			d_lustre_revalidate(*de);
-			ll_intent_release(&parent_it);
-		}
-	}
-
-	return 0;
-}
-
-static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
-				   struct lookup_intent *it, int lookup_flags)
-{
-	struct lookup_intent lookup_it = { .it_op = IT_LOOKUP };
-	struct dentry *save = dentry, *retval;
-	struct ptlrpc_request *req = NULL;
-	struct inode *inode;
-	struct md_op_data *op_data;
-	__u32 opc;
-	int rc;
-
-	if (dentry->d_name.len > ll_i2sbi(parent)->ll_namelen)
-		return ERR_PTR(-ENAMETOOLONG);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),intent=%s\n",
-	       dentry, parent->i_ino,
-	       parent->i_generation, parent, LL_IT2STR(it));
-
-	if (d_mountpoint(dentry))
-		CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
-
-	if (it == NULL || it->it_op == IT_GETXATTR)
-		it = &lookup_it;
-
-	if (it->it_op == IT_GETATTR) {
-		rc = ll_statahead_enter(parent, &dentry, 0);
-		if (rc == 1) {
-			if (dentry == save)
-				retval = NULL;
-			else
-				retval = dentry;
-			goto out;
-		}
-	}
-
-	if (it->it_op & IT_CREAT)
-		opc = LUSTRE_OPC_CREATE;
-	else
-		opc = LUSTRE_OPC_ANY;
-
-	op_data = ll_prep_md_op_data(NULL, parent, NULL, dentry->d_name.name,
-				     dentry->d_name.len, lookup_flags, opc,
-				     NULL);
-	if (IS_ERR(op_data))
-		return (void *)op_data;
-
-	/* enforce umask if acl disabled or MDS doesn't support umask */
-	if (!IS_POSIXACL(parent) || !exp_connect_umask(ll_i2mdexp(parent)))
-		it->it_create_mode &= ~current_umask();
-
-	rc = md_intent_lock(ll_i2mdexp(parent), op_data, NULL, 0, it,
-			    lookup_flags, &req, ll_md_blocking_ast, 0);
-	ll_finish_md_op_data(op_data);
-	if (rc < 0) {
-		retval = ERR_PTR(rc);
-		goto out;
-	}
-
-	rc = ll_lookup_it_finish(req, it, parent, &dentry);
-	if (rc != 0) {
-		ll_intent_release(it);
-		retval = ERR_PTR(rc);
-		goto out;
-	}
-
-	inode = d_inode(dentry);
-	if ((it->it_op & IT_OPEN) && inode &&
-	    !S_ISREG(inode->i_mode) &&
-	    !S_ISDIR(inode->i_mode)) {
-		ll_release_openhandle(inode, it);
-	}
-	ll_lookup_finish_locks(it, inode);
-
-	if (dentry == save)
-		retval = NULL;
-	else
-		retval = dentry;
-	goto out;
- out:
-	if (req)
-		ptlrpc_req_finished(req);
-	if (it->it_op == IT_GETATTR && (retval == NULL || retval == dentry))
-		ll_statahead_mark(parent, dentry);
-	return retval;
-}
-
-static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
-				   unsigned int flags)
-{
-	struct lookup_intent *itp, it = { .it_op = IT_GETATTR };
-	struct dentry *de;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),flags=%u\n",
-	       dentry, parent->i_ino,
-	       parent->i_generation, parent, flags);
-
-	/* Optimize away (CREATE && !OPEN). Let .create handle the race. */
-	if ((flags & LOOKUP_CREATE) && !(flags & LOOKUP_OPEN))
-		return NULL;
-
-	if (flags & (LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE))
-		itp = NULL;
-	else
-		itp = &it;
-	de = ll_lookup_it(parent, dentry, itp, 0);
-
-	if (itp != NULL)
-		ll_intent_release(itp);
-
-	return de;
-}
-
-/*
- * For cached negative dentry and new dentry, handle lookup/create/open
- * together.
- */
-static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
-			  struct file *file, unsigned open_flags,
-			  umode_t mode, int *opened)
-{
-	struct lookup_intent *it;
-	struct dentry *de;
-	long long lookup_flags = LOOKUP_OPEN;
-	int rc = 0;
-
-	CDEBUG(D_VFSTRACE,
-	       "VFS Op:name=%pd,dir=%lu/%u(%p),file %p,open_flags %x,mode %x opened %d\n",
-	       dentry, dir->i_ino,
-	       dir->i_generation, dir, file, open_flags, mode, *opened);
-
-	it = kzalloc(sizeof(*it), GFP_NOFS);
-	if (!it)
-		return -ENOMEM;
-
-	it->it_op = IT_OPEN;
-	if (open_flags & O_CREAT) {
-		it->it_op |= IT_CREAT;
-		lookup_flags |= LOOKUP_CREATE;
-	}
-	it->it_create_mode = (mode & S_IALLUGO) | S_IFREG;
-	it->it_flags = (open_flags & ~O_ACCMODE) | OPEN_FMODE(open_flags);
-
-	/* Dentry added to dcache tree in ll_lookup_it */
-	de = ll_lookup_it(dir, dentry, it, lookup_flags);
-	if (IS_ERR(de))
-		rc = PTR_ERR(de);
-	else if (de != NULL)
-		dentry = de;
-
-	if (!rc) {
-		if (it_disposition(it, DISP_OPEN_CREATE)) {
-			/* Dentry instantiated in ll_create_it. */
-			rc = ll_create_it(dir, dentry, mode, it);
-			if (rc) {
-				/* We dget in ll_splice_alias. */
-				if (de != NULL)
-					dput(de);
-				goto out_release;
-			}
-
-			*opened |= FILE_CREATED;
-		}
-		if (d_really_is_positive(dentry) && it_disposition(it, DISP_OPEN_OPEN)) {
-			/* Open dentry. */
-			if (S_ISFIFO(d_inode(dentry)->i_mode)) {
-				/* We cannot call open here as it would
-				 * deadlock.
-				 */
-				if (it_disposition(it, DISP_ENQ_OPEN_REF))
-					ptlrpc_req_finished(
-						       (struct ptlrpc_request *)
-							  it->d.lustre.it_data);
-				rc = finish_no_open(file, de);
-			} else {
-				file->private_data = it;
-				rc = finish_open(file, dentry, NULL, opened);
-				/* We dget in ll_splice_alias. finish_open takes
-				 * care of dget for fd open.
-				 */
-				if (de != NULL)
-					dput(de);
-			}
-		} else {
-			rc = finish_no_open(file, de);
-		}
-	}
-
-out_release:
-	ll_intent_release(it);
-	kfree(it);
-
-	return rc;
-}
-
-
-/* We depend on "mode" being set with the proper file type/umask by now */
-static struct inode *ll_create_node(struct inode *dir, struct lookup_intent *it)
-{
-	struct inode *inode = NULL;
-	struct ptlrpc_request *request = NULL;
-	struct ll_sb_info *sbi = ll_i2sbi(dir);
-	int rc;
-
-	LASSERT(it && it->d.lustre.it_disposition);
-
-	LASSERT(it_disposition(it, DISP_ENQ_CREATE_REF));
-	request = it->d.lustre.it_data;
-	it_clear_disposition(it, DISP_ENQ_CREATE_REF);
-	rc = ll_prep_inode(&inode, request, dir->i_sb, it);
-	if (rc) {
-		inode = ERR_PTR(rc);
-		goto out;
-	}
-
-	LASSERT(hlist_empty(&inode->i_dentry));
-
-	/* We asked for a lock on the directory, but were granted a
-	 * lock on the inode.  Since we finally have an inode pointer,
-	 * stuff it in the lock. */
-	CDEBUG(D_DLMTRACE, "setting l_ast_data to inode %p (%lu/%u)\n",
-	       inode, inode->i_ino, inode->i_generation);
-	ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL);
- out:
-	ptlrpc_req_finished(request);
-	return inode;
-}
-
-/*
- * By the time this is called, we already have created the directory cache
- * entry for the new file, but it is so far negative - it has no inode.
- *
- * We defer creating the OBD object(s) until open, to keep the intent and
- * non-intent code paths similar, and also because we do not have the MDS
- * inode number before calling ll_create_node() (which is needed for LOV),
- * so we would need to do yet another RPC to the MDS to store the LOV EA
- * data on the MDS.  If needed, we would pass the PACKED lmm as data and
- * lmm_size in datalen (the MDS still has code which will handle that).
- *
- * If the create succeeds, we fill in the inode information
- * with d_instantiate().
- */
-static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
-			struct lookup_intent *it)
-{
-	struct inode *inode;
-	int rc = 0;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),intent=%s\n",
-	       dentry, dir->i_ino,
-	       dir->i_generation, dir, LL_IT2STR(it));
-
-	rc = it_open_error(DISP_OPEN_CREATE, it);
-	if (rc)
-		return rc;
-
-	inode = ll_create_node(dir, it);
-	if (IS_ERR(inode))
-		return PTR_ERR(inode);
-
-	d_instantiate(dentry, inode);
-	return 0;
-}
-
-static void ll_update_times(struct ptlrpc_request *request,
-			    struct inode *inode)
-{
-	struct mdt_body *body = req_capsule_server_get(&request->rq_pill,
-						       &RMF_MDT_BODY);
-
-	LASSERT(body);
-	if (body->valid & OBD_MD_FLMTIME &&
-	    body->mtime > LTIME_S(inode->i_mtime)) {
-		CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n",
-		       inode->i_ino, LTIME_S(inode->i_mtime), body->mtime);
-		LTIME_S(inode->i_mtime) = body->mtime;
-	}
-	if (body->valid & OBD_MD_FLCTIME &&
-	    body->ctime > LTIME_S(inode->i_ctime))
-		LTIME_S(inode->i_ctime) = body->ctime;
-}
-
-static int ll_new_node(struct inode *dir, struct dentry *dentry,
-		       const char *tgt, int mode, int rdev,
-		       __u32 opc)
-{
-	struct ptlrpc_request *request = NULL;
-	struct md_op_data *op_data;
-	struct inode *inode = NULL;
-	struct ll_sb_info *sbi = ll_i2sbi(dir);
-	int tgt_len = 0;
-	int err;
-
-	if (unlikely(tgt != NULL))
-		tgt_len = strlen(tgt) + 1;
-
-	op_data = ll_prep_md_op_data(NULL, dir, NULL,
-				     dentry->d_name.name,
-				     dentry->d_name.len,
-				     0, opc, NULL);
-	if (IS_ERR(op_data)) {
-		err = PTR_ERR(op_data);
-		goto err_exit;
-	}
-
-	err = md_create(sbi->ll_md_exp, op_data, tgt, tgt_len, mode,
-			from_kuid(&init_user_ns, current_fsuid()),
-			from_kgid(&init_user_ns, current_fsgid()),
-			cfs_curproc_cap_pack(), rdev, &request);
-	ll_finish_md_op_data(op_data);
-	if (err)
-		goto err_exit;
-
-	ll_update_times(request, dir);
-
-	err = ll_prep_inode(&inode, request, dir->i_sb, NULL);
-	if (err)
-		goto err_exit;
-
-	d_instantiate(dentry, inode);
-err_exit:
-	ptlrpc_req_finished(request);
-
-	return err;
-}
-
-static int ll_mknod(struct inode *dir, struct dentry *dchild,
-		    umode_t mode, dev_t rdev)
-{
-	int err;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p) mode %o dev %x\n",
-	       dchild, dir->i_ino, dir->i_generation, dir,
-	       mode, old_encode_dev(rdev));
-
-	if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
-		mode &= ~current_umask();
-
-	switch (mode & S_IFMT) {
-	case 0:
-		mode |= S_IFREG; /* for mode = 0 case, fallthrough */
-	case S_IFREG:
-	case S_IFCHR:
-	case S_IFBLK:
-	case S_IFIFO:
-	case S_IFSOCK:
-		err = ll_new_node(dir, dchild, NULL, mode,
-				  old_encode_dev(rdev),
-				  LUSTRE_OPC_MKNOD);
-		break;
-	case S_IFDIR:
-		err = -EPERM;
-		break;
-	default:
-		err = -EINVAL;
-	}
-
-	if (!err)
-		ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKNOD, 1);
-
-	return err;
-}
-
-/*
- * Plain create. Intent create is handled in atomic_open.
- */
-static int ll_create_nd(struct inode *dir, struct dentry *dentry,
-			umode_t mode, bool want_excl)
-{
-	int rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),flags=%u, excl=%d\n",
-	       dentry, dir->i_ino,
-	       dir->i_generation, dir, mode, want_excl);
-
-	rc = ll_mknod(dir, dentry, mode, 0);
-
-	ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_CREATE, 1);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, unhashed %d\n",
-	       dentry, d_unhashed(dentry));
-
-	return rc;
-}
-
-static inline void ll_get_child_fid(struct dentry *child, struct lu_fid *fid)
-{
-	if (d_really_is_positive(child))
-		*fid = *ll_inode2fid(d_inode(child));
-}
-
-/**
- * Remove dir entry
- **/
-int ll_rmdir_entry(struct inode *dir, char *name, int namelen)
-{
-	struct ptlrpc_request *request = NULL;
-	struct md_op_data *op_data;
-	int rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
-	       namelen, name, dir->i_ino, dir->i_generation, dir);
-
-	op_data = ll_prep_md_op_data(NULL, dir, NULL, name, strlen(name),
-				     S_IFDIR, LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-	op_data->op_cli_flags |= CLI_RM_ENTRY;
-	rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
-	ll_finish_md_op_data(op_data);
-	if (rc == 0) {
-		ll_update_times(request, dir);
-		ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_RMDIR, 1);
-	}
-
-	ptlrpc_req_finished(request);
-	return rc;
-}
-
-int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
-{
-	struct mdt_body *body;
-	struct lov_mds_md *eadata;
-	struct lov_stripe_md *lsm = NULL;
-	struct obd_trans_info oti = { 0 };
-	struct obdo *oa;
-	struct obd_capa *oc = NULL;
-	int rc;
-
-	/* req is swabbed so this is safe */
-	body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
-	if (!(body->valid & OBD_MD_FLEASIZE))
-		return 0;
-
-	if (body->eadatasize == 0) {
-		CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
-		rc = -EPROTO;
-		goto out;
-	}
-
-	/* The MDS sent back the EA because we unlinked the last reference
-	 * to this file. Use this EA to unlink the objects on the OST.
-	 * It's opaque so we don't swab here; we leave it to obd_unpackmd() to
-	 * check it is complete and sensible. */
-	eadata = req_capsule_server_sized_get(&request->rq_pill, &RMF_MDT_MD,
-					      body->eadatasize);
-	LASSERT(eadata != NULL);
-
-	rc = obd_unpackmd(ll_i2dtexp(dir), &lsm, eadata, body->eadatasize);
-	if (rc < 0) {
-		CERROR("obd_unpackmd: %d\n", rc);
-		goto out;
-	}
-	LASSERT(rc >= sizeof(*lsm));
-
-	OBDO_ALLOC(oa);
-	if (oa == NULL) {
-		rc = -ENOMEM;
-		goto out_free_memmd;
-	}
-
-	oa->o_oi = lsm->lsm_oi;
-	oa->o_mode = body->mode & S_IFMT;
-	oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
-
-	if (body->valid & OBD_MD_FLCOOKIE) {
-		oa->o_valid |= OBD_MD_FLCOOKIE;
-		oti.oti_logcookies =
-			req_capsule_server_sized_get(&request->rq_pill,
-						     &RMF_LOGCOOKIES,
-						   sizeof(struct llog_cookie) *
-						     lsm->lsm_stripe_count);
-		if (oti.oti_logcookies == NULL) {
-			oa->o_valid &= ~OBD_MD_FLCOOKIE;
-			body->valid &= ~OBD_MD_FLCOOKIE;
-		}
-	}
-
-	if (body->valid & OBD_MD_FLOSSCAPA) {
-		rc = md_unpack_capa(ll_i2mdexp(dir), request, &RMF_CAPA2, &oc);
-		if (rc)
-			goto out_free_memmd;
-	}
-
-	rc = obd_destroy(NULL, ll_i2dtexp(dir), oa, lsm, &oti,
-			 ll_i2mdexp(dir), oc);
-	capa_put(oc);
-	if (rc)
-		CERROR("obd destroy objid "DOSTID" error %d\n",
-		       POSTID(&lsm->lsm_oi), rc);
-out_free_memmd:
-	obd_free_memmd(ll_i2dtexp(dir), &lsm);
-	OBDO_FREE(oa);
-out:
-	return rc;
-}
-
-/* ll_unlink() doesn't update the inode with the new link count.
- * Instead, ll_ddelete() and ll_d_iput() will update it based upon if there
- * is any lock existing. They will recycle dentries and inodes based upon locks
- * too. b=20433 */
-static int ll_unlink(struct inode *dir, struct dentry *dentry)
-{
-	struct ptlrpc_request *request = NULL;
-	struct md_op_data *op_data;
-	int rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n",
-	       dentry, dir->i_ino, dir->i_generation, dir);
-
-	op_data = ll_prep_md_op_data(NULL, dir, NULL,
-				     dentry->d_name.name,
-				     dentry->d_name.len,
-				     0, LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	ll_get_child_fid(dentry, &op_data->op_fid3);
-	op_data->op_fid2 = op_data->op_fid3;
-	rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
-	ll_finish_md_op_data(op_data);
-	if (rc)
-		goto out;
-
-	ll_update_times(request, dir);
-	ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_UNLINK, 1);
-
-	rc = ll_objects_destroy(request, dir);
- out:
-	ptlrpc_req_finished(request);
-	return rc;
-}
-
-static int ll_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
-{
-	int err;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n",
-	       dentry, dir->i_ino, dir->i_generation, dir);
-
-	if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
-		mode &= ~current_umask();
-	mode = (mode & (S_IRWXUGO|S_ISVTX)) | S_IFDIR;
-	err = ll_new_node(dir, dentry, NULL, mode, 0, LUSTRE_OPC_MKDIR);
-
-	if (!err)
-		ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKDIR, 1);
-
-	return err;
-}
-
-static int ll_rmdir(struct inode *dir, struct dentry *dentry)
-{
-	struct ptlrpc_request *request = NULL;
-	struct md_op_data *op_data;
-	int rc;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n",
-	       dentry, dir->i_ino, dir->i_generation, dir);
-
-	op_data = ll_prep_md_op_data(NULL, dir, NULL,
-				     dentry->d_name.name,
-				     dentry->d_name.len,
-				     S_IFDIR, LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	ll_get_child_fid(dentry, &op_data->op_fid3);
-	op_data->op_fid2 = op_data->op_fid3;
-	rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
-	ll_finish_md_op_data(op_data);
-	if (rc == 0) {
-		ll_update_times(request, dir);
-		ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_RMDIR, 1);
-	}
-
-	ptlrpc_req_finished(request);
-	return rc;
-}
-
-static int ll_symlink(struct inode *dir, struct dentry *dentry,
-		      const char *oldname)
-{
-	int err;
-
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),target=%.*s\n",
-	       dentry, dir->i_ino, dir->i_generation,
-	       dir, 3000, oldname);
-
-	err = ll_new_node(dir, dentry, oldname, S_IFLNK | S_IRWXUGO,
-			0, LUSTRE_OPC_SYMLINK);
-
-	if (!err)
-		ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_SYMLINK, 1);
-
-	return err;
-}
-
-static int ll_link(struct dentry *old_dentry, struct inode *dir,
-		   struct dentry *new_dentry)
-{
-	struct inode *src = d_inode(old_dentry);
-	struct ll_sb_info *sbi = ll_i2sbi(dir);
-	struct ptlrpc_request *request = NULL;
-	struct md_op_data *op_data;
-	int err;
-
-	CDEBUG(D_VFSTRACE,
-	       "VFS Op: inode=%lu/%u(%p), dir=%lu/%u(%p), target=%pd\n",
-	       src->i_ino, src->i_generation, src, dir->i_ino,
-	       dir->i_generation, dir, new_dentry);
-
-	op_data = ll_prep_md_op_data(NULL, src, dir, new_dentry->d_name.name,
-				     new_dentry->d_name.len,
-				     0, LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	err = md_link(sbi->ll_md_exp, op_data, &request);
-	ll_finish_md_op_data(op_data);
-	if (err)
-		goto out;
-
-	ll_update_times(request, dir);
-	ll_stats_ops_tally(sbi, LPROC_LL_LINK, 1);
-out:
-	ptlrpc_req_finished(request);
-	return err;
-}
-
-static int ll_rename(struct inode *old_dir, struct dentry *old_dentry,
-		     struct inode *new_dir, struct dentry *new_dentry)
-{
-	struct ptlrpc_request *request = NULL;
-	struct ll_sb_info *sbi = ll_i2sbi(old_dir);
-	struct md_op_data *op_data;
-	int err;
-
-	CDEBUG(D_VFSTRACE,
-	       "VFS Op:oldname=%pd,src_dir=%lu/%u(%p),newname=%pd,tgt_dir=%lu/%u(%p)\n",
-	       old_dentry, old_dir->i_ino, old_dir->i_generation, old_dir,
-	       new_dentry, new_dir->i_ino, new_dir->i_generation, new_dir);
-
-	op_data = ll_prep_md_op_data(NULL, old_dir, new_dir, NULL, 0, 0,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	ll_get_child_fid(old_dentry, &op_data->op_fid3);
-	ll_get_child_fid(new_dentry, &op_data->op_fid4);
-	err = md_rename(sbi->ll_md_exp, op_data,
-			old_dentry->d_name.name,
-			old_dentry->d_name.len,
-			new_dentry->d_name.name,
-			new_dentry->d_name.len, &request);
-	ll_finish_md_op_data(op_data);
-	if (!err) {
-		ll_update_times(request, old_dir);
-		ll_update_times(request, new_dir);
-		ll_stats_ops_tally(sbi, LPROC_LL_RENAME, 1);
-		err = ll_objects_destroy(request, old_dir);
-	}
-
-	ptlrpc_req_finished(request);
-	if (!err)
-		d_move(old_dentry, new_dentry);
-	return err;
-}
-
-const struct inode_operations ll_dir_inode_operations = {
-	.mknod	      = ll_mknod,
-	.atomic_open	    = ll_atomic_open,
-	.lookup	     = ll_lookup_nd,
-	.create	     = ll_create_nd,
-	/* We need all these non-raw things for NFSD, to not patch it. */
-	.unlink	     = ll_unlink,
-	.mkdir	      = ll_mkdir,
-	.rmdir	      = ll_rmdir,
-	.symlink	    = ll_symlink,
-	.link	       = ll_link,
-	.rename	     = ll_rename,
-	.setattr	    = ll_setattr,
-	.getattr	    = ll_getattr,
-	.permission	 = ll_inode_permission,
-	.setxattr	   = ll_setxattr,
-	.getxattr	   = ll_getxattr,
-	.listxattr	  = ll_listxattr,
-	.removexattr	= ll_removexattr,
-	.get_acl	    = ll_get_acl,
-};
-
-const struct inode_operations ll_special_inode_operations = {
-	.setattr	= ll_setattr,
-	.getattr	= ll_getattr,
-	.permission     = ll_inode_permission,
-	.setxattr       = ll_setxattr,
-	.getxattr       = ll_getxattr,
-	.listxattr      = ll_listxattr,
-	.removexattr    = ll_removexattr,
-	.get_acl	    = ll_get_acl,
-};
diff --git a/drivers/staging/lustre/lustre/llite/remote_perm.c b/drivers/staging/lustre/lustre/llite/remote_perm.c
deleted file mode 100644
index 39022ea88b5f..000000000000
--- a/drivers/staging/lustre/lustre/llite/remote_perm.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/remote_perm.c
- *
- * Lustre Permission Cache for Remote Client
- *
- * Author: Lai Siyao <lsy@clusterfs.com>
- * Author: Fan Yong <fanyong@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include <linux/module.h>
-#include <linux/types.h>
-
-#include "../include/lustre_lite.h"
-#include "../include/lustre_ha.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre_disk.h"
-#include "../include/lustre_param.h"
-#include "llite_internal.h"
-
-struct kmem_cache *ll_remote_perm_cachep;
-struct kmem_cache *ll_rmtperm_hash_cachep;
-
-static inline struct ll_remote_perm *alloc_ll_remote_perm(void)
-{
-	struct ll_remote_perm *lrp;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lrp, ll_remote_perm_cachep, GFP_KERNEL);
-	if (lrp)
-		INIT_HLIST_NODE(&lrp->lrp_list);
-	return lrp;
-}
-
-static inline void free_ll_remote_perm(struct ll_remote_perm *lrp)
-{
-	if (!lrp)
-		return;
-
-	if (!hlist_unhashed(&lrp->lrp_list))
-		hlist_del(&lrp->lrp_list);
-	OBD_SLAB_FREE(lrp, ll_remote_perm_cachep, sizeof(*lrp));
-}
-
-static struct hlist_head *alloc_rmtperm_hash(void)
-{
-	struct hlist_head *hash;
-	int i;
-
-	OBD_SLAB_ALLOC_GFP(hash, ll_rmtperm_hash_cachep,
-			   REMOTE_PERM_HASHSIZE * sizeof(*hash),
-			   GFP_IOFS);
-	if (!hash)
-		return NULL;
-
-	for (i = 0; i < REMOTE_PERM_HASHSIZE; i++)
-		INIT_HLIST_HEAD(hash + i);
-
-	return hash;
-}
-
-void free_rmtperm_hash(struct hlist_head *hash)
-{
-	int i;
-	struct ll_remote_perm *lrp;
-	struct hlist_node *next;
-
-	if (!hash)
-		return;
-
-	for (i = 0; i < REMOTE_PERM_HASHSIZE; i++)
-		hlist_for_each_entry_safe(lrp, next, hash + i, lrp_list)
-			free_ll_remote_perm(lrp);
-	OBD_SLAB_FREE(hash, ll_rmtperm_hash_cachep,
-		      REMOTE_PERM_HASHSIZE * sizeof(*hash));
-}
-
-static inline int remote_perm_hashfunc(uid_t uid)
-{
-	return uid & (REMOTE_PERM_HASHSIZE - 1);
-}
-
-/* NB: setxid permission is not checked here, instead it's done on
- * MDT when client get remote permission.
- */
-static int do_check_remote_perm(struct ll_inode_info *lli, int mask)
-{
-	struct hlist_head *head;
-	struct ll_remote_perm *lrp;
-	int found = 0, rc;
-
-	if (!lli->lli_remote_perms)
-		return -ENOENT;
-
-	head = lli->lli_remote_perms +
-		remote_perm_hashfunc(from_kuid(&init_user_ns, current_uid()));
-
-	spin_lock(&lli->lli_lock);
-	hlist_for_each_entry(lrp, head, lrp_list) {
-		if (lrp->lrp_uid != from_kuid(&init_user_ns, current_uid()))
-			continue;
-		if (lrp->lrp_gid != from_kgid(&init_user_ns, current_gid()))
-			continue;
-		if (lrp->lrp_fsuid != from_kuid(&init_user_ns, current_fsuid()))
-			continue;
-		if (lrp->lrp_fsgid != from_kgid(&init_user_ns, current_fsgid()))
-			continue;
-		found = 1;
-		break;
-	}
-
-	if (!found) {
-		rc = -ENOENT;
-		goto out;
-	}
-
-	CDEBUG(D_SEC, "found remote perm: %u/%u/%u/%u - %#x\n",
-	       lrp->lrp_uid, lrp->lrp_gid, lrp->lrp_fsuid, lrp->lrp_fsgid,
-	       lrp->lrp_access_perm);
-	rc = ((lrp->lrp_access_perm & mask) == mask) ? 0 : -EACCES;
-
-out:
-	spin_unlock(&lli->lli_lock);
-	return rc;
-}
-
-int ll_update_remote_perm(struct inode *inode, struct mdt_remote_perm *perm)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ll_remote_perm *lrp = NULL, *tmp = NULL;
-	struct hlist_head *head, *perm_hash = NULL;
-
-	LASSERT(ll_i2sbi(inode)->ll_flags & LL_SBI_RMT_CLIENT);
-
-#if 0
-	if (perm->rp_uid != current->uid ||
-	    perm->rp_gid != current->gid ||
-	    perm->rp_fsuid != current->fsuid ||
-	    perm->rp_fsgid != current->fsgid) {
-		/* user might setxid in this small period */
-		CDEBUG(D_SEC,
-		       "remote perm user %u/%u/%u/%u != current %u/%u/%u/%u\n",
-		       perm->rp_uid, perm->rp_gid, perm->rp_fsuid,
-		       perm->rp_fsgid, current->uid, current->gid,
-		       current->fsuid, current->fsgid);
-		return -EAGAIN;
-	}
-#endif
-
-	if (!lli->lli_remote_perms) {
-		perm_hash = alloc_rmtperm_hash();
-		if (!perm_hash) {
-			CERROR("alloc lli_remote_perms failed!\n");
-			return -ENOMEM;
-		}
-	}
-
-	spin_lock(&lli->lli_lock);
-
-	if (!lli->lli_remote_perms)
-		lli->lli_remote_perms = perm_hash;
-	else
-		free_rmtperm_hash(perm_hash);
-
-	head = lli->lli_remote_perms + remote_perm_hashfunc(perm->rp_uid);
-
-again:
-	hlist_for_each_entry(tmp, head, lrp_list) {
-		if (tmp->lrp_uid != perm->rp_uid)
-			continue;
-		if (tmp->lrp_gid != perm->rp_gid)
-			continue;
-		if (tmp->lrp_fsuid != perm->rp_fsuid)
-			continue;
-		if (tmp->lrp_fsgid != perm->rp_fsgid)
-			continue;
-		free_ll_remote_perm(lrp);
-		lrp = tmp;
-		break;
-	}
-
-	if (!lrp) {
-		spin_unlock(&lli->lli_lock);
-		lrp = alloc_ll_remote_perm();
-		if (!lrp) {
-			CERROR("alloc memory for ll_remote_perm failed!\n");
-			return -ENOMEM;
-		}
-		spin_lock(&lli->lli_lock);
-		goto again;
-	}
-
-	lrp->lrp_access_perm = perm->rp_access_perm;
-	if (lrp != tmp) {
-		lrp->lrp_uid	 = perm->rp_uid;
-		lrp->lrp_gid	 = perm->rp_gid;
-		lrp->lrp_fsuid       = perm->rp_fsuid;
-		lrp->lrp_fsgid       = perm->rp_fsgid;
-		hlist_add_head(&lrp->lrp_list, head);
-	}
-	lli->lli_rmtperm_time = cfs_time_current();
-	spin_unlock(&lli->lli_lock);
-
-	CDEBUG(D_SEC, "new remote perm@%p: %u/%u/%u/%u - %#x\n",
-	       lrp, lrp->lrp_uid, lrp->lrp_gid, lrp->lrp_fsuid, lrp->lrp_fsgid,
-	       lrp->lrp_access_perm);
-
-	return 0;
-}
-
-int lustre_check_remote_perm(struct inode *inode, int mask)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ptlrpc_request *req = NULL;
-	struct mdt_remote_perm *perm;
-	struct obd_capa *oc;
-	unsigned long save;
-	int i = 0, rc;
-
-	do {
-		save = lli->lli_rmtperm_time;
-		rc = do_check_remote_perm(lli, mask);
-		if (!rc || (rc != -ENOENT && i))
-			break;
-
-		might_sleep();
-
-		mutex_lock(&lli->lli_rmtperm_mutex);
-		/* check again */
-		if (save != lli->lli_rmtperm_time) {
-			rc = do_check_remote_perm(lli, mask);
-			if (!rc || (rc != -ENOENT && i)) {
-				mutex_unlock(&lli->lli_rmtperm_mutex);
-				break;
-			}
-		}
-
-		if (i++ > 5) {
-			CERROR("check remote perm falls in dead loop!\n");
-			LBUG();
-		}
-
-		oc = ll_mdscapa_get(inode);
-		rc = md_get_remote_perm(sbi->ll_md_exp, ll_inode2fid(inode), oc,
-					ll_i2suppgid(inode), &req);
-		capa_put(oc);
-		if (rc) {
-			mutex_unlock(&lli->lli_rmtperm_mutex);
-			break;
-		}
-
-		perm = req_capsule_server_swab_get(&req->rq_pill, &RMF_ACL,
-						   lustre_swab_mdt_remote_perm);
-		if (unlikely(!perm)) {
-			mutex_unlock(&lli->lli_rmtperm_mutex);
-			rc = -EPROTO;
-			break;
-		}
-
-		rc = ll_update_remote_perm(inode, perm);
-		mutex_unlock(&lli->lli_rmtperm_mutex);
-		if (rc == -ENOMEM)
-			break;
-
-		ptlrpc_req_finished(req);
-		req = NULL;
-	} while (1);
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-#if 0  /* NB: remote perms can't be freed in ll_mdc_blocking_ast of UPDATE lock,
-	* because it will fail sanity test 48.
-	*/
-void ll_free_remote_perms(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct hlist_head *hash = lli->lli_remote_perms;
-	struct ll_remote_perm *lrp;
-	struct hlist_node *node, *next;
-	int i;
-
-	LASSERT(hash);
-
-	spin_lock(&lli->lli_lock);
-
-	for (i = 0; i < REMOTE_PERM_HASHSIZE; i++) {
-		hlist_for_each_entry_safe(lrp, node, next, hash + i, lrp_list)
-			free_ll_remote_perm(lrp);
-	}
-
-	spin_unlock(&lli->lli_lock);
-}
-#endif
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
deleted file mode 100644
index 991d20c5065d..000000000000
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ /dev/null
@@ -1,1289 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/llite/rw.c
- *
- * Lustre Lite I/O page cache routines shared by different kernel revs
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <linux/writeback.h>
-#include <linux/uaccess.h>
-
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-/* current_is_kswapd() */
-#include <linux/swap.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/lustre_lite.h"
-#include "../include/obd_cksum.h"
-#include "llite_internal.h"
-#include "../include/linux/lustre_compat25.h"
-
-/**
- * Finalizes cl-data before exiting typical address_space operation. Dual to
- * ll_cl_init().
- */
-static void ll_cl_fini(struct ll_cl_context *lcc)
-{
-	struct lu_env  *env  = lcc->lcc_env;
-	struct cl_io   *io   = lcc->lcc_io;
-	struct cl_page *page = lcc->lcc_page;
-
-	LASSERT(lcc->lcc_cookie == current);
-	LASSERT(env != NULL);
-
-	if (page != NULL) {
-		lu_ref_del(&page->cp_reference, "cl_io", io);
-		cl_page_put(env, page);
-	}
-
-	cl_env_put(env, &lcc->lcc_refcheck);
-}
-
-/**
- * Initializes common cl-data at the typical address_space operation entry
- * point.
- */
-static struct ll_cl_context *ll_cl_init(struct file *file,
-					struct page *vmpage, int create)
-{
-	struct ll_cl_context *lcc;
-	struct lu_env    *env;
-	struct cl_io     *io;
-	struct cl_object *clob;
-	struct ccc_io    *cio;
-
-	int refcheck;
-	int result = 0;
-
-	clob = ll_i2info(vmpage->mapping->host)->lli_clob;
-	LASSERT(clob != NULL);
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return ERR_CAST(env);
-
-	lcc = &vvp_env_info(env)->vti_io_ctx;
-	memset(lcc, 0, sizeof(*lcc));
-	lcc->lcc_env = env;
-	lcc->lcc_refcheck = refcheck;
-	lcc->lcc_cookie = current;
-
-	cio = ccc_env_io(env);
-	io = cio->cui_cl.cis_io;
-	if (io == NULL && create) {
-		struct inode *inode = vmpage->mapping->host;
-		loff_t pos;
-
-		if (mutex_trylock(&inode->i_mutex)) {
-			mutex_unlock(&(inode)->i_mutex);
-
-			/* this is too bad. Someone is trying to write the
-			 * page w/o holding inode mutex. This means we can
-			 * add dirty pages into cache during truncate */
-			CERROR("Proc %s is dirtying page w/o inode lock, this will break truncate\n",
-			       current->comm);
-			dump_stack();
-			LBUG();
-			return ERR_PTR(-EIO);
-		}
-
-		/*
-		 * Loop-back driver calls ->prepare_write().
-		 * methods directly, bypassing file system ->write() operation,
-		 * so cl_io has to be created here.
-		 */
-		io = ccc_env_thread_io(env);
-		ll_io_init(io, file, 1);
-
-		/* No lock at all for this kind of IO - we can't do it because
-		 * we have held page lock, it would cause deadlock.
-		 * XXX: This causes poor performance to loop device - One page
-		 *      per RPC.
-		 *      In order to get better performance, users should use
-		 *      lloop driver instead.
-		 */
-		io->ci_lockreq = CILR_NEVER;
-
-		pos = vmpage->index << PAGE_CACHE_SHIFT;
-
-		/* Create a temp IO to serve write. */
-		result = cl_io_rw_init(env, io, CIT_WRITE, pos, PAGE_CACHE_SIZE);
-		if (result == 0) {
-			cio->cui_fd = LUSTRE_FPRIVATE(file);
-			cio->cui_iter = NULL;
-			result = cl_io_iter_init(env, io);
-			if (result == 0) {
-				result = cl_io_lock(env, io);
-				if (result == 0)
-					result = cl_io_start(env, io);
-			}
-		} else
-			result = io->ci_result;
-	}
-
-	lcc->lcc_io = io;
-	if (io == NULL)
-		result = -EIO;
-	if (result == 0) {
-		struct cl_page   *page;
-
-		LASSERT(io != NULL);
-		LASSERT(io->ci_state == CIS_IO_GOING);
-		LASSERT(cio->cui_fd == LUSTRE_FPRIVATE(file));
-		page = cl_page_find(env, clob, vmpage->index, vmpage,
-				    CPT_CACHEABLE);
-		if (!IS_ERR(page)) {
-			lcc->lcc_page = page;
-			lu_ref_add(&page->cp_reference, "cl_io", io);
-			result = 0;
-		} else
-			result = PTR_ERR(page);
-	}
-	if (result) {
-		ll_cl_fini(lcc);
-		lcc = ERR_PTR(result);
-	}
-
-	CDEBUG(D_VFSTRACE, "%lu@"DFID" -> %d %p %p\n",
-	       vmpage->index, PFID(lu_object_fid(&clob->co_lu)), result,
-	       env, io);
-	return lcc;
-}
-
-static struct ll_cl_context *ll_cl_get(void)
-{
-	struct ll_cl_context *lcc;
-	struct lu_env *env;
-	int refcheck;
-
-	env = cl_env_get(&refcheck);
-	LASSERT(!IS_ERR(env));
-	lcc = &vvp_env_info(env)->vti_io_ctx;
-	LASSERT(env == lcc->lcc_env);
-	LASSERT(current == lcc->lcc_cookie);
-	cl_env_put(env, &refcheck);
-
-	/* env has got in ll_cl_init, so it is still usable. */
-	return lcc;
-}
-
-/**
- * ->prepare_write() address space operation called by generic_file_write()
- * for every page during write.
- */
-int ll_prepare_write(struct file *file, struct page *vmpage, unsigned from,
-		     unsigned to)
-{
-	struct ll_cl_context *lcc;
-	int result;
-
-	lcc = ll_cl_init(file, vmpage, 1);
-	if (!IS_ERR(lcc)) {
-		struct lu_env  *env = lcc->lcc_env;
-		struct cl_io   *io  = lcc->lcc_io;
-		struct cl_page *page = lcc->lcc_page;
-
-		cl_page_assume(env, io, page);
-
-		result = cl_io_prepare_write(env, io, page, from, to);
-		if (result == 0) {
-			/*
-			 * Add a reference, so that page is not evicted from
-			 * the cache until ->commit_write() is called.
-			 */
-			cl_page_get(page);
-			lu_ref_add(&page->cp_reference, "prepare_write",
-				   current);
-		} else {
-			cl_page_unassume(env, io, page);
-			ll_cl_fini(lcc);
-		}
-		/* returning 0 in prepare assumes commit must be called
-		 * afterwards */
-	} else {
-		result = PTR_ERR(lcc);
-	}
-	return result;
-}
-
-int ll_commit_write(struct file *file, struct page *vmpage, unsigned from,
-		    unsigned to)
-{
-	struct ll_cl_context *lcc;
-	struct lu_env    *env;
-	struct cl_io     *io;
-	struct cl_page   *page;
-	int result = 0;
-
-	lcc  = ll_cl_get();
-	env  = lcc->lcc_env;
-	page = lcc->lcc_page;
-	io   = lcc->lcc_io;
-
-	LASSERT(cl_page_is_owned(page, io));
-	LASSERT(from <= to);
-	if (from != to) /* handle short write case. */
-		result = cl_io_commit_write(env, io, page, from, to);
-	if (cl_page_is_owned(page, io))
-		cl_page_unassume(env, io, page);
-
-	/*
-	 * Release reference acquired by ll_prepare_write().
-	 */
-	lu_ref_del(&page->cp_reference, "prepare_write", current);
-	cl_page_put(env, page);
-	ll_cl_fini(lcc);
-	return result;
-}
-
-struct obd_capa *cl_capa_lookup(struct inode *inode, enum cl_req_type crt)
-{
-	__u64 opc;
-
-	opc = crt == CRT_WRITE ? CAPA_OPC_OSS_WRITE : CAPA_OPC_OSS_RW;
-	return ll_osscapa_get(inode, opc);
-}
-
-static void ll_ra_stats_inc_sbi(struct ll_sb_info *sbi, enum ra_stat which);
-
-/**
- * Get readahead pages from the filesystem readahead pool of the client for a
- * thread.
- *
- * /param sbi superblock for filesystem readahead state ll_ra_info
- * /param ria per-thread readahead state
- * /param pages number of pages requested for readahead for the thread.
- *
- * WARNING: This algorithm is used to reduce contention on sbi->ll_lock.
- * It should work well if the ra_max_pages is much greater than the single
- * file's read-ahead window, and not too many threads contending for
- * these readahead pages.
- *
- * TODO: There may be a 'global sync problem' if many threads are trying
- * to get an ra budget that is larger than the remaining readahead pages
- * and reach here at exactly the same time. They will compute /a ret to
- * consume the remaining pages, but will fail at atomic_add_return() and
- * get a zero ra window, although there is still ra space remaining. - Jay */
-
-static unsigned long ll_ra_count_get(struct ll_sb_info *sbi,
-				     struct ra_io_arg *ria,
-				     unsigned long pages)
-{
-	struct ll_ra_info *ra = &sbi->ll_ra_info;
-	long ret;
-
-	/* If read-ahead pages left are less than 1M, do not do read-ahead,
-	 * otherwise it will form small read RPC(< 1M), which hurt server
-	 * performance a lot. */
-	ret = min(ra->ra_max_pages - atomic_read(&ra->ra_cur_pages), pages);
-	if (ret < 0 || ret < min_t(long, PTLRPC_MAX_BRW_PAGES, pages)) {
-		ret = 0;
-		goto out;
-	}
-
-	/* If the non-strided (ria_pages == 0) readahead window
-	 * (ria_start + ret) has grown across an RPC boundary, then trim
-	 * readahead size by the amount beyond the RPC so it ends on an
-	 * RPC boundary. If the readahead window is already ending on
-	 * an RPC boundary (beyond_rpc == 0), or smaller than a full
-	 * RPC (beyond_rpc < ret) the readahead size is unchanged.
-	 * The (beyond_rpc != 0) check is skipped since the conditional
-	 * branch is more expensive than subtracting zero from the result.
-	 *
-	 * Strided read is left unaligned to avoid small fragments beyond
-	 * the RPC boundary from needing an extra read RPC. */
-	if (ria->ria_pages == 0) {
-		long beyond_rpc = (ria->ria_start + ret) % PTLRPC_MAX_BRW_PAGES;
-		if (/* beyond_rpc != 0 && */ beyond_rpc < ret)
-			ret -= beyond_rpc;
-	}
-
-	if (atomic_add_return(ret, &ra->ra_cur_pages) > ra->ra_max_pages) {
-		atomic_sub(ret, &ra->ra_cur_pages);
-		ret = 0;
-	}
-
-out:
-	return ret;
-}
-
-void ll_ra_count_put(struct ll_sb_info *sbi, unsigned long len)
-{
-	struct ll_ra_info *ra = &sbi->ll_ra_info;
-	atomic_sub(len, &ra->ra_cur_pages);
-}
-
-static void ll_ra_stats_inc_sbi(struct ll_sb_info *sbi, enum ra_stat which)
-{
-	LASSERTF(which >= 0 && which < _NR_RA_STAT, "which: %u\n", which);
-	lprocfs_counter_incr(sbi->ll_ra_stats, which);
-}
-
-void ll_ra_stats_inc(struct address_space *mapping, enum ra_stat which)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(mapping->host);
-	ll_ra_stats_inc_sbi(sbi, which);
-}
-
-#define RAS_CDEBUG(ras) \
-	CDEBUG(D_READA,						      \
-	       "lrp %lu cr %lu cp %lu ws %lu wl %lu nra %lu r %lu ri %lu"    \
-	       "csr %lu sf %lu sp %lu sl %lu \n",			    \
-	       ras->ras_last_readpage, ras->ras_consecutive_requests,	\
-	       ras->ras_consecutive_pages, ras->ras_window_start,	    \
-	       ras->ras_window_len, ras->ras_next_readahead,		 \
-	       ras->ras_requests, ras->ras_request_index,		    \
-	       ras->ras_consecutive_stride_requests, ras->ras_stride_offset, \
-	       ras->ras_stride_pages, ras->ras_stride_length)
-
-static int index_in_window(unsigned long index, unsigned long point,
-			   unsigned long before, unsigned long after)
-{
-	unsigned long start = point - before, end = point + after;
-
-	if (start > point)
-	       start = 0;
-	if (end < point)
-	       end = ~0;
-
-	return start <= index && index <= end;
-}
-
-static struct ll_readahead_state *ll_ras_get(struct file *f)
-{
-	struct ll_file_data       *fd;
-
-	fd = LUSTRE_FPRIVATE(f);
-	return &fd->fd_ras;
-}
-
-void ll_ra_read_in(struct file *f, struct ll_ra_read *rar)
-{
-	struct ll_readahead_state *ras;
-
-	ras = ll_ras_get(f);
-
-	spin_lock(&ras->ras_lock);
-	ras->ras_requests++;
-	ras->ras_request_index = 0;
-	ras->ras_consecutive_requests++;
-	rar->lrr_reader = current;
-
-	list_add(&rar->lrr_linkage, &ras->ras_read_beads);
-	spin_unlock(&ras->ras_lock);
-}
-
-void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar)
-{
-	struct ll_readahead_state *ras;
-
-	ras = ll_ras_get(f);
-
-	spin_lock(&ras->ras_lock);
-	list_del_init(&rar->lrr_linkage);
-	spin_unlock(&ras->ras_lock);
-}
-
-static struct ll_ra_read *ll_ra_read_get_locked(struct ll_readahead_state *ras)
-{
-	struct ll_ra_read *scan;
-
-	list_for_each_entry(scan, &ras->ras_read_beads, lrr_linkage) {
-		if (scan->lrr_reader == current)
-			return scan;
-	}
-	return NULL;
-}
-
-struct ll_ra_read *ll_ra_read_get(struct file *f)
-{
-	struct ll_readahead_state *ras;
-	struct ll_ra_read	 *bead;
-
-	ras = ll_ras_get(f);
-
-	spin_lock(&ras->ras_lock);
-	bead = ll_ra_read_get_locked(ras);
-	spin_unlock(&ras->ras_lock);
-	return bead;
-}
-
-static int cl_read_ahead_page(const struct lu_env *env, struct cl_io *io,
-			      struct cl_page_list *queue, struct cl_page *page,
-			      struct page *vmpage)
-{
-	struct ccc_page *cp;
-	int	      rc;
-
-	rc = 0;
-	cl_page_assume(env, io, page);
-	lu_ref_add(&page->cp_reference, "ra", current);
-	cp = cl2ccc_page(cl_page_at(page, &vvp_device_type));
-	if (!cp->cpg_defer_uptodate && !PageUptodate(vmpage)) {
-		rc = cl_page_is_under_lock(env, io, page);
-		if (rc == -EBUSY) {
-			cp->cpg_defer_uptodate = 1;
-			cp->cpg_ra_used = 0;
-			cl_page_list_add(queue, page);
-			rc = 1;
-		} else {
-			cl_page_delete(env, page);
-			rc = -ENOLCK;
-		}
-	} else {
-		/* skip completed pages */
-		cl_page_unassume(env, io, page);
-	}
-	lu_ref_del(&page->cp_reference, "ra", current);
-	cl_page_put(env, page);
-	return rc;
-}
-
-/**
- * Initiates read-ahead of a page with given index.
- *
- * \retval     +ve: page was added to \a queue.
- *
- * \retval -ENOLCK: there is no extent lock for this part of a file, stop
- *		  read-ahead.
- *
- * \retval  -ve, 0: page wasn't added to \a queue for other reason.
- */
-static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io,
-			      struct cl_page_list *queue,
-			      pgoff_t index, struct address_space *mapping)
-{
-	struct page      *vmpage;
-	struct cl_object *clob  = ll_i2info(mapping->host)->lli_clob;
-	struct cl_page   *page;
-	enum ra_stat      which = _NR_RA_STAT; /* keep gcc happy */
-	int	       rc    = 0;
-	const char       *msg   = NULL;
-
-	vmpage = grab_cache_page_nowait(mapping, index);
-	if (vmpage != NULL) {
-		/* Check if vmpage was truncated or reclaimed */
-		if (vmpage->mapping == mapping) {
-			page = cl_page_find(env, clob, vmpage->index,
-					    vmpage, CPT_CACHEABLE);
-			if (!IS_ERR(page)) {
-				rc = cl_read_ahead_page(env, io, queue,
-							page, vmpage);
-				if (rc == -ENOLCK) {
-					which = RA_STAT_FAILED_MATCH;
-					msg   = "lock match failed";
-				}
-			} else {
-				which = RA_STAT_FAILED_GRAB_PAGE;
-				msg   = "cl_page_find failed";
-			}
-		} else {
-			which = RA_STAT_WRONG_GRAB_PAGE;
-			msg   = "g_c_p_n returned invalid page";
-		}
-		if (rc != 1)
-			unlock_page(vmpage);
-		page_cache_release(vmpage);
-	} else {
-		which = RA_STAT_FAILED_GRAB_PAGE;
-		msg   = "g_c_p_n failed";
-	}
-	if (msg != NULL) {
-		ll_ra_stats_inc(mapping, which);
-		CDEBUG(D_READA, "%s\n", msg);
-	}
-	return rc;
-}
-
-#define RIA_DEBUG(ria)						       \
-	CDEBUG(D_READA, "rs %lu re %lu ro %lu rl %lu rp %lu\n",       \
-	ria->ria_start, ria->ria_end, ria->ria_stoff, ria->ria_length,\
-	ria->ria_pages)
-
-/* Limit this to the blocksize instead of PTLRPC_BRW_MAX_SIZE, since we don't
- * know what the actual RPC size is.  If this needs to change, it makes more
- * sense to tune the i_blkbits value for the file based on the OSTs it is
- * striped over, rather than having a constant value for all files here. */
-
-/* RAS_INCREASE_STEP should be (1UL << (inode->i_blkbits - PAGE_CACHE_SHIFT)).
- * Temporarily set RAS_INCREASE_STEP to 1MB. After 4MB RPC is enabled
- * by default, this should be adjusted corresponding with max_read_ahead_mb
- * and max_read_ahead_per_file_mb otherwise the readahead budget can be used
- * up quickly which will affect read performance significantly. See LU-2816 */
-#define RAS_INCREASE_STEP(inode) (ONE_MB_BRW_SIZE >> PAGE_CACHE_SHIFT)
-
-static inline int stride_io_mode(struct ll_readahead_state *ras)
-{
-	return ras->ras_consecutive_stride_requests > 1;
-}
-/* The function calculates how much pages will be read in
- * [off, off + length], in such stride IO area,
- * stride_offset = st_off, stride_length = st_len,
- * stride_pages = st_pgs
- *
- *   |------------------|*****|------------------|*****|------------|*****|....
- * st_off
- *   |--- st_pgs     ---|
- *   |-----     st_len   -----|
- *
- *	      How many pages it should read in such pattern
- *	      |-------------------------------------------------------------|
- *	      off
- *	      |<------		  length		      ------->|
- *
- *	  =   |<----->|  +  |-------------------------------------| +   |---|
- *	     start_left		 st_pgs * i		    end_left
- */
-static unsigned long
-stride_pg_count(pgoff_t st_off, unsigned long st_len, unsigned long st_pgs,
-		unsigned long off, unsigned long length)
-{
-	__u64 start = off > st_off ? off - st_off : 0;
-	__u64 end = off + length > st_off ? off + length - st_off : 0;
-	unsigned long start_left = 0;
-	unsigned long end_left = 0;
-	unsigned long pg_count;
-
-	if (st_len == 0 || length == 0 || end == 0)
-		return length;
-
-	start_left = do_div(start, st_len);
-	if (start_left < st_pgs)
-		start_left = st_pgs - start_left;
-	else
-		start_left = 0;
-
-	end_left = do_div(end, st_len);
-	if (end_left > st_pgs)
-		end_left = st_pgs;
-
-	CDEBUG(D_READA, "start %llu, end %llu start_left %lu end_left %lu \n",
-	       start, end, start_left, end_left);
-
-	if (start == end)
-		pg_count = end_left - (st_pgs - start_left);
-	else
-		pg_count = start_left + st_pgs * (end - start - 1) + end_left;
-
-	CDEBUG(D_READA, "st_off %lu, st_len %lu st_pgs %lu off %lu length %lu pgcount %lu\n",
-	       st_off, st_len, st_pgs, off, length, pg_count);
-
-	return pg_count;
-}
-
-static int ria_page_count(struct ra_io_arg *ria)
-{
-	__u64 length = ria->ria_end >= ria->ria_start ?
-		       ria->ria_end - ria->ria_start + 1 : 0;
-
-	return stride_pg_count(ria->ria_stoff, ria->ria_length,
-			       ria->ria_pages, ria->ria_start,
-			       length);
-}
-
-/*Check whether the index is in the defined ra-window */
-static int ras_inside_ra_window(unsigned long idx, struct ra_io_arg *ria)
-{
-	/* If ria_length == ria_pages, it means non-stride I/O mode,
-	 * idx should always inside read-ahead window in this case
-	 * For stride I/O mode, just check whether the idx is inside
-	 * the ria_pages. */
-	return ria->ria_length == 0 || ria->ria_length == ria->ria_pages ||
-	       (idx >= ria->ria_stoff && (idx - ria->ria_stoff) %
-		ria->ria_length < ria->ria_pages);
-}
-
-static int ll_read_ahead_pages(const struct lu_env *env,
-			       struct cl_io *io, struct cl_page_list *queue,
-			       struct ra_io_arg *ria,
-			       unsigned long *reserved_pages,
-			       struct address_space *mapping,
-			       unsigned long *ra_end)
-{
-	int rc, count = 0, stride_ria;
-	unsigned long page_idx;
-
-	LASSERT(ria != NULL);
-	RIA_DEBUG(ria);
-
-	stride_ria = ria->ria_length > ria->ria_pages && ria->ria_pages > 0;
-	for (page_idx = ria->ria_start; page_idx <= ria->ria_end &&
-			*reserved_pages > 0; page_idx++) {
-		if (ras_inside_ra_window(page_idx, ria)) {
-			/* If the page is inside the read-ahead window*/
-			rc = ll_read_ahead_page(env, io, queue,
-						page_idx, mapping);
-			if (rc == 1) {
-				(*reserved_pages)--;
-				count ++;
-			} else if (rc == -ENOLCK)
-				break;
-		} else if (stride_ria) {
-			/* If it is not in the read-ahead window, and it is
-			 * read-ahead mode, then check whether it should skip
-			 * the stride gap */
-			pgoff_t offset;
-			/* FIXME: This assertion only is valid when it is for
-			 * forward read-ahead, it will be fixed when backward
-			 * read-ahead is implemented */
-			LASSERTF(page_idx > ria->ria_stoff, "Invalid page_idx %lu rs %lu re %lu ro %lu rl %lu rp %lu\n",
-				 page_idx,
-				 ria->ria_start, ria->ria_end, ria->ria_stoff,
-				 ria->ria_length, ria->ria_pages);
-			offset = page_idx - ria->ria_stoff;
-			offset = offset % (ria->ria_length);
-			if (offset > ria->ria_pages) {
-				page_idx += ria->ria_length - offset;
-				CDEBUG(D_READA, "i %lu skip %lu \n", page_idx,
-				       ria->ria_length - offset);
-				continue;
-			}
-		}
-	}
-	*ra_end = page_idx;
-	return count;
-}
-
-int ll_readahead(const struct lu_env *env, struct cl_io *io,
-		 struct ll_readahead_state *ras, struct address_space *mapping,
-		 struct cl_page_list *queue, int flags)
-{
-	struct vvp_io *vio = vvp_env_io(env);
-	struct vvp_thread_info *vti = vvp_env_info(env);
-	struct cl_attr *attr = ccc_env_thread_attr(env);
-	unsigned long start = 0, end = 0, reserved;
-	unsigned long ra_end, len;
-	struct inode *inode;
-	struct ll_ra_read *bead;
-	struct ra_io_arg *ria = &vti->vti_ria;
-	struct ll_inode_info *lli;
-	struct cl_object *clob;
-	int ret = 0;
-	__u64 kms;
-
-	inode = mapping->host;
-	lli = ll_i2info(inode);
-	clob = lli->lli_clob;
-
-	memset(ria, 0, sizeof(*ria));
-
-	cl_object_attr_lock(clob);
-	ret = cl_object_attr_get(env, clob, attr);
-	cl_object_attr_unlock(clob);
-
-	if (ret != 0)
-		return ret;
-	kms = attr->cat_kms;
-	if (kms == 0) {
-		ll_ra_stats_inc(mapping, RA_STAT_ZERO_LEN);
-		return 0;
-	}
-
-	spin_lock(&ras->ras_lock);
-	if (vio->cui_ra_window_set)
-		bead = &vio->cui_bead;
-	else
-		bead = NULL;
-
-	/* Enlarge the RA window to encompass the full read */
-	if (bead != NULL && ras->ras_window_start + ras->ras_window_len <
-	    bead->lrr_start + bead->lrr_count) {
-		ras->ras_window_len = bead->lrr_start + bead->lrr_count -
-				      ras->ras_window_start;
-	}
-	/* Reserve a part of the read-ahead window that we'll be issuing */
-	if (ras->ras_window_len) {
-		start = ras->ras_next_readahead;
-		end = ras->ras_window_start + ras->ras_window_len - 1;
-	}
-	if (end != 0) {
-		unsigned long rpc_boundary;
-		/*
-		 * Align RA window to an optimal boundary.
-		 *
-		 * XXX This would be better to align to cl_max_pages_per_rpc
-		 * instead of PTLRPC_MAX_BRW_PAGES, because the RPC size may
-		 * be aligned to the RAID stripe size in the future and that
-		 * is more important than the RPC size.
-		 */
-		/* Note: we only trim the RPC, instead of extending the RPC
-		 * to the boundary, so to avoid reading too much pages during
-		 * random reading. */
-		rpc_boundary = (end + 1) & (~(PTLRPC_MAX_BRW_PAGES - 1));
-		if (rpc_boundary > 0)
-			rpc_boundary--;
-
-		if (rpc_boundary  > start)
-			end = rpc_boundary;
-
-		/* Truncate RA window to end of file */
-		end = min(end, (unsigned long)((kms - 1) >> PAGE_CACHE_SHIFT));
-
-		ras->ras_next_readahead = max(end, end + 1);
-		RAS_CDEBUG(ras);
-	}
-	ria->ria_start = start;
-	ria->ria_end = end;
-	/* If stride I/O mode is detected, get stride window*/
-	if (stride_io_mode(ras)) {
-		ria->ria_stoff = ras->ras_stride_offset;
-		ria->ria_length = ras->ras_stride_length;
-		ria->ria_pages = ras->ras_stride_pages;
-	}
-	spin_unlock(&ras->ras_lock);
-
-	if (end == 0) {
-		ll_ra_stats_inc(mapping, RA_STAT_ZERO_WINDOW);
-		return 0;
-	}
-	len = ria_page_count(ria);
-	if (len == 0)
-		return 0;
-
-	reserved = ll_ra_count_get(ll_i2sbi(inode), ria, len);
-	if (reserved < len)
-		ll_ra_stats_inc(mapping, RA_STAT_MAX_IN_FLIGHT);
-
-	CDEBUG(D_READA, "reserved page %lu ra_cur %d ra_max %lu\n", reserved,
-	       atomic_read(&ll_i2sbi(inode)->ll_ra_info.ra_cur_pages),
-	       ll_i2sbi(inode)->ll_ra_info.ra_max_pages);
-
-	ret = ll_read_ahead_pages(env, io, queue,
-				  ria, &reserved, mapping, &ra_end);
-
-	LASSERTF(reserved >= 0, "reserved %lu\n", reserved);
-	if (reserved != 0)
-		ll_ra_count_put(ll_i2sbi(inode), reserved);
-
-	if (ra_end == end + 1 && ra_end == (kms >> PAGE_CACHE_SHIFT))
-		ll_ra_stats_inc(mapping, RA_STAT_EOF);
-
-	/* if we didn't get to the end of the region we reserved from
-	 * the ras we need to go back and update the ras so that the
-	 * next read-ahead tries from where we left off.  we only do so
-	 * if the region we failed to issue read-ahead on is still ahead
-	 * of the app and behind the next index to start read-ahead from */
-	CDEBUG(D_READA, "ra_end %lu end %lu stride end %lu \n",
-	       ra_end, end, ria->ria_end);
-
-	if (ra_end != end + 1) {
-		spin_lock(&ras->ras_lock);
-		if (ra_end < ras->ras_next_readahead &&
-		    index_in_window(ra_end, ras->ras_window_start, 0,
-				    ras->ras_window_len)) {
-			ras->ras_next_readahead = ra_end;
-			RAS_CDEBUG(ras);
-		}
-		spin_unlock(&ras->ras_lock);
-	}
-
-	return ret;
-}
-
-static void ras_set_start(struct inode *inode, struct ll_readahead_state *ras,
-			  unsigned long index)
-{
-	ras->ras_window_start = index & (~(RAS_INCREASE_STEP(inode) - 1));
-}
-
-/* called with the ras_lock held or from places where it doesn't matter */
-static void ras_reset(struct inode *inode, struct ll_readahead_state *ras,
-		      unsigned long index)
-{
-	ras->ras_last_readpage = index;
-	ras->ras_consecutive_requests = 0;
-	ras->ras_consecutive_pages = 0;
-	ras->ras_window_len = 0;
-	ras_set_start(inode, ras, index);
-	ras->ras_next_readahead = max(ras->ras_window_start, index);
-
-	RAS_CDEBUG(ras);
-}
-
-/* called with the ras_lock held or from places where it doesn't matter */
-static void ras_stride_reset(struct ll_readahead_state *ras)
-{
-	ras->ras_consecutive_stride_requests = 0;
-	ras->ras_stride_length = 0;
-	ras->ras_stride_pages = 0;
-	RAS_CDEBUG(ras);
-}
-
-void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras)
-{
-	spin_lock_init(&ras->ras_lock);
-	ras_reset(inode, ras, 0);
-	ras->ras_requests = 0;
-	INIT_LIST_HEAD(&ras->ras_read_beads);
-}
-
-/*
- * Check whether the read request is in the stride window.
- * If it is in the stride window, return 1, otherwise return 0.
- */
-static int index_in_stride_window(struct ll_readahead_state *ras,
-				  unsigned long index)
-{
-	unsigned long stride_gap;
-
-	if (ras->ras_stride_length == 0 || ras->ras_stride_pages == 0 ||
-	    ras->ras_stride_pages == ras->ras_stride_length)
-		return 0;
-
-	stride_gap = index - ras->ras_last_readpage - 1;
-
-	/* If it is contiguous read */
-	if (stride_gap == 0)
-		return ras->ras_consecutive_pages + 1 <= ras->ras_stride_pages;
-
-	/* Otherwise check the stride by itself */
-	return (ras->ras_stride_length - ras->ras_stride_pages) == stride_gap &&
-		ras->ras_consecutive_pages == ras->ras_stride_pages;
-}
-
-static void ras_update_stride_detector(struct ll_readahead_state *ras,
-				       unsigned long index)
-{
-	unsigned long stride_gap = index - ras->ras_last_readpage - 1;
-
-	if (!stride_io_mode(ras) && (stride_gap != 0 ||
-	     ras->ras_consecutive_stride_requests == 0)) {
-		ras->ras_stride_pages = ras->ras_consecutive_pages;
-		ras->ras_stride_length = stride_gap +ras->ras_consecutive_pages;
-	}
-	LASSERT(ras->ras_request_index == 0);
-	LASSERT(ras->ras_consecutive_stride_requests == 0);
-
-	if (index <= ras->ras_last_readpage) {
-		/*Reset stride window for forward read*/
-		ras_stride_reset(ras);
-		return;
-	}
-
-	ras->ras_stride_pages = ras->ras_consecutive_pages;
-	ras->ras_stride_length = stride_gap +ras->ras_consecutive_pages;
-
-	RAS_CDEBUG(ras);
-	return;
-}
-
-static unsigned long
-stride_page_count(struct ll_readahead_state *ras, unsigned long len)
-{
-	return stride_pg_count(ras->ras_stride_offset, ras->ras_stride_length,
-			       ras->ras_stride_pages, ras->ras_stride_offset,
-			       len);
-}
-
-/* Stride Read-ahead window will be increased inc_len according to
- * stride I/O pattern */
-static void ras_stride_increase_window(struct ll_readahead_state *ras,
-				       struct ll_ra_info *ra,
-				       unsigned long inc_len)
-{
-	unsigned long left, step, window_len;
-	unsigned long stride_len;
-
-	LASSERT(ras->ras_stride_length > 0);
-	LASSERTF(ras->ras_window_start + ras->ras_window_len
-		 >= ras->ras_stride_offset, "window_start %lu, window_len %lu stride_offset %lu\n",
-		 ras->ras_window_start,
-		 ras->ras_window_len, ras->ras_stride_offset);
-
-	stride_len = ras->ras_window_start + ras->ras_window_len -
-		     ras->ras_stride_offset;
-
-	left = stride_len % ras->ras_stride_length;
-	window_len = ras->ras_window_len - left;
-
-	if (left < ras->ras_stride_pages)
-		left += inc_len;
-	else
-		left = ras->ras_stride_pages + inc_len;
-
-	LASSERT(ras->ras_stride_pages != 0);
-
-	step = left / ras->ras_stride_pages;
-	left %= ras->ras_stride_pages;
-
-	window_len += step * ras->ras_stride_length + left;
-
-	if (stride_page_count(ras, window_len) <= ra->ra_max_pages_per_file)
-		ras->ras_window_len = window_len;
-
-	RAS_CDEBUG(ras);
-}
-
-static void ras_increase_window(struct inode *inode,
-				struct ll_readahead_state *ras,
-				struct ll_ra_info *ra)
-{
-	/* The stretch of ra-window should be aligned with max rpc_size
-	 * but current clio architecture does not support retrieve such
-	 * information from lower layer. FIXME later
-	 */
-	if (stride_io_mode(ras))
-		ras_stride_increase_window(ras, ra, RAS_INCREASE_STEP(inode));
-	else
-		ras->ras_window_len = min(ras->ras_window_len +
-					  RAS_INCREASE_STEP(inode),
-					  ra->ra_max_pages_per_file);
-}
-
-void ras_update(struct ll_sb_info *sbi, struct inode *inode,
-		struct ll_readahead_state *ras, unsigned long index,
-		unsigned hit)
-{
-	struct ll_ra_info *ra = &sbi->ll_ra_info;
-	int zero = 0, stride_detect = 0, ra_miss = 0;
-
-	spin_lock(&ras->ras_lock);
-
-	ll_ra_stats_inc_sbi(sbi, hit ? RA_STAT_HIT : RA_STAT_MISS);
-
-	/* reset the read-ahead window in two cases.  First when the app seeks
-	 * or reads to some other part of the file.  Secondly if we get a
-	 * read-ahead miss that we think we've previously issued.  This can
-	 * be a symptom of there being so many read-ahead pages that the VM is
-	 * reclaiming it before we get to it. */
-	if (!index_in_window(index, ras->ras_last_readpage, 8, 8)) {
-		zero = 1;
-		ll_ra_stats_inc_sbi(sbi, RA_STAT_DISTANT_READPAGE);
-	} else if (!hit && ras->ras_window_len &&
-		   index < ras->ras_next_readahead &&
-		   index_in_window(index, ras->ras_window_start, 0,
-				   ras->ras_window_len)) {
-		ra_miss = 1;
-		ll_ra_stats_inc_sbi(sbi, RA_STAT_MISS_IN_WINDOW);
-	}
-
-	/* On the second access to a file smaller than the tunable
-	 * ra_max_read_ahead_whole_pages trigger RA on all pages in the
-	 * file up to ra_max_pages_per_file.  This is simply a best effort
-	 * and only occurs once per open file.  Normal RA behavior is reverted
-	 * to for subsequent IO.  The mmap case does not increment
-	 * ras_requests and thus can never trigger this behavior. */
-	if (ras->ras_requests == 2 && !ras->ras_request_index) {
-		__u64 kms_pages;
-
-		kms_pages = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
-			    PAGE_CACHE_SHIFT;
-
-		CDEBUG(D_READA, "kmsp %llu mwp %lu mp %lu\n", kms_pages,
-		       ra->ra_max_read_ahead_whole_pages, ra->ra_max_pages_per_file);
-
-		if (kms_pages &&
-		    kms_pages <= ra->ra_max_read_ahead_whole_pages) {
-			ras->ras_window_start = 0;
-			ras->ras_last_readpage = 0;
-			ras->ras_next_readahead = 0;
-			ras->ras_window_len = min(ra->ra_max_pages_per_file,
-				ra->ra_max_read_ahead_whole_pages);
-			goto out_unlock;
-		}
-	}
-	if (zero) {
-		/* check whether it is in stride I/O mode*/
-		if (!index_in_stride_window(ras, index)) {
-			if (ras->ras_consecutive_stride_requests == 0 &&
-			    ras->ras_request_index == 0) {
-				ras_update_stride_detector(ras, index);
-				ras->ras_consecutive_stride_requests++;
-			} else {
-				ras_stride_reset(ras);
-			}
-			ras_reset(inode, ras, index);
-			ras->ras_consecutive_pages++;
-			goto out_unlock;
-		} else {
-			ras->ras_consecutive_pages = 0;
-			ras->ras_consecutive_requests = 0;
-			if (++ras->ras_consecutive_stride_requests > 1)
-				stride_detect = 1;
-			RAS_CDEBUG(ras);
-		}
-	} else {
-		if (ra_miss) {
-			if (index_in_stride_window(ras, index) &&
-			    stride_io_mode(ras)) {
-				/*If stride-RA hit cache miss, the stride dector
-				 *will not be reset to avoid the overhead of
-				 *redetecting read-ahead mode */
-				if (index != ras->ras_last_readpage + 1)
-					ras->ras_consecutive_pages = 0;
-				ras_reset(inode, ras, index);
-				RAS_CDEBUG(ras);
-			} else {
-				/* Reset both stride window and normal RA
-				 * window */
-				ras_reset(inode, ras, index);
-				ras->ras_consecutive_pages++;
-				ras_stride_reset(ras);
-				goto out_unlock;
-			}
-		} else if (stride_io_mode(ras)) {
-			/* If this is contiguous read but in stride I/O mode
-			 * currently, check whether stride step still is valid,
-			 * if invalid, it will reset the stride ra window*/
-			if (!index_in_stride_window(ras, index)) {
-				/* Shrink stride read-ahead window to be zero */
-				ras_stride_reset(ras);
-				ras->ras_window_len = 0;
-				ras->ras_next_readahead = index;
-			}
-		}
-	}
-	ras->ras_consecutive_pages++;
-	ras->ras_last_readpage = index;
-	ras_set_start(inode, ras, index);
-
-	if (stride_io_mode(ras))
-		/* Since stride readahead is sensitive to the offset
-		 * of read-ahead, so we use original offset here,
-		 * instead of ras_window_start, which is RPC aligned */
-		ras->ras_next_readahead = max(index, ras->ras_next_readahead);
-	else
-		ras->ras_next_readahead = max(ras->ras_window_start,
-					      ras->ras_next_readahead);
-	RAS_CDEBUG(ras);
-
-	/* Trigger RA in the mmap case where ras_consecutive_requests
-	 * is not incremented and thus can't be used to trigger RA */
-	if (!ras->ras_window_len && ras->ras_consecutive_pages == 4) {
-		ras->ras_window_len = RAS_INCREASE_STEP(inode);
-		goto out_unlock;
-	}
-
-	/* Initially reset the stride window offset to next_readahead*/
-	if (ras->ras_consecutive_stride_requests == 2 && stride_detect) {
-		/**
-		 * Once stride IO mode is detected, next_readahead should be
-		 * reset to make sure next_readahead > stride offset
-		 */
-		ras->ras_next_readahead = max(index, ras->ras_next_readahead);
-		ras->ras_stride_offset = index;
-		ras->ras_window_len = RAS_INCREASE_STEP(inode);
-	}
-
-	/* The initial ras_window_len is set to the request size.  To avoid
-	 * uselessly reading and discarding pages for random IO the window is
-	 * only increased once per consecutive request received. */
-	if ((ras->ras_consecutive_requests > 1 || stride_detect) &&
-	    !ras->ras_request_index)
-		ras_increase_window(inode, ras, ra);
-out_unlock:
-	RAS_CDEBUG(ras);
-	ras->ras_request_index++;
-	spin_unlock(&ras->ras_lock);
-	return;
-}
-
-int ll_writepage(struct page *vmpage, struct writeback_control *wbc)
-{
-	struct inode	       *inode = vmpage->mapping->host;
-	struct ll_inode_info   *lli   = ll_i2info(inode);
-	struct lu_env	  *env;
-	struct cl_io	   *io;
-	struct cl_page	 *page;
-	struct cl_object       *clob;
-	struct cl_env_nest      nest;
-	bool redirtied = false;
-	bool unlocked = false;
-	int result;
-
-	LASSERT(PageLocked(vmpage));
-	LASSERT(!PageWriteback(vmpage));
-
-	LASSERT(ll_i2dtexp(inode) != NULL);
-
-	env = cl_env_nested_get(&nest);
-	if (IS_ERR(env)) {
-		result = PTR_ERR(env);
-		goto out;
-	}
-
-	clob  = ll_i2info(inode)->lli_clob;
-	LASSERT(clob != NULL);
-
-	io = ccc_env_thread_io(env);
-	io->ci_obj = clob;
-	io->ci_ignore_layout = 1;
-	result = cl_io_init(env, io, CIT_MISC, clob);
-	if (result == 0) {
-		page = cl_page_find(env, clob, vmpage->index,
-				    vmpage, CPT_CACHEABLE);
-		if (!IS_ERR(page)) {
-			lu_ref_add(&page->cp_reference, "writepage",
-				   current);
-			cl_page_assume(env, io, page);
-			result = cl_page_flush(env, io, page);
-			if (result != 0) {
-				/*
-				 * Re-dirty page on error so it retries write,
-				 * but not in case when IO has actually
-				 * occurred and completed with an error.
-				 */
-				if (!PageError(vmpage)) {
-					redirty_page_for_writepage(wbc, vmpage);
-					result = 0;
-					redirtied = true;
-				}
-			}
-			cl_page_disown(env, io, page);
-			unlocked = true;
-			lu_ref_del(&page->cp_reference,
-				   "writepage", current);
-			cl_page_put(env, page);
-		} else {
-			result = PTR_ERR(page);
-		}
-	}
-	cl_io_fini(env, io);
-
-	if (redirtied && wbc->sync_mode == WB_SYNC_ALL) {
-		loff_t offset = cl_offset(clob, vmpage->index);
-
-		/* Flush page failed because the extent is being written out.
-		 * Wait for the write of extent to be finished to avoid
-		 * breaking kernel which assumes ->writepage should mark
-		 * PageWriteback or clean the page. */
-		result = cl_sync_file_range(inode, offset,
-					    offset + PAGE_CACHE_SIZE - 1,
-					    CL_FSYNC_LOCAL, 1);
-		if (result > 0) {
-			/* actually we may have written more than one page.
-			 * decreasing this page because the caller will count
-			 * it. */
-			wbc->nr_to_write -= result - 1;
-			result = 0;
-		}
-	}
-
-	cl_env_nested_put(&nest, env);
-	goto out;
-
-out:
-	if (result < 0) {
-		if (!lli->lli_async_rc)
-			lli->lli_async_rc = result;
-		SetPageError(vmpage);
-		if (!unlocked)
-			unlock_page(vmpage);
-	}
-	return result;
-}
-
-int ll_writepages(struct address_space *mapping, struct writeback_control *wbc)
-{
-	struct inode *inode = mapping->host;
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	loff_t start;
-	loff_t end;
-	enum cl_fsync_mode mode;
-	int range_whole = 0;
-	int result;
-	int ignore_layout = 0;
-
-	if (wbc->range_cyclic) {
-		start = mapping->writeback_index << PAGE_CACHE_SHIFT;
-		end = OBD_OBJECT_EOF;
-	} else {
-		start = wbc->range_start;
-		end = wbc->range_end;
-		if (end == LLONG_MAX) {
-			end = OBD_OBJECT_EOF;
-			range_whole = start == 0;
-		}
-	}
-
-	mode = CL_FSYNC_NONE;
-	if (wbc->sync_mode == WB_SYNC_ALL)
-		mode = CL_FSYNC_LOCAL;
-
-	if (sbi->ll_umounting)
-		/* if the mountpoint is being umounted, all pages have to be
-		 * evicted to avoid hitting LBUG when truncate_inode_pages()
-		 * is called later on. */
-		ignore_layout = 1;
-	result = cl_sync_file_range(inode, start, end, mode, ignore_layout);
-	if (result > 0) {
-		wbc->nr_to_write -= result;
-		result = 0;
-	 }
-
-	if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) {
-		if (end == OBD_OBJECT_EOF)
-			end = i_size_read(inode);
-		mapping->writeback_index = (end >> PAGE_CACHE_SHIFT) + 1;
-	}
-	return result;
-}
-
-int ll_readpage(struct file *file, struct page *vmpage)
-{
-	struct ll_cl_context *lcc;
-	int result;
-
-	lcc = ll_cl_init(file, vmpage, 0);
-	if (!IS_ERR(lcc)) {
-		struct lu_env  *env  = lcc->lcc_env;
-		struct cl_io   *io   = lcc->lcc_io;
-		struct cl_page *page = lcc->lcc_page;
-
-		LASSERT(page->cp_type == CPT_CACHEABLE);
-		if (likely(!PageUptodate(vmpage))) {
-			cl_page_assume(env, io, page);
-			result = cl_io_read_page(env, io, page);
-		} else {
-			/* Page from a non-object file. */
-			unlock_page(vmpage);
-			result = 0;
-		}
-		ll_cl_fini(lcc);
-	} else {
-		unlock_page(vmpage);
-		result = PTR_ERR(lcc);
-	}
-	return result;
-}
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
deleted file mode 100644
index b17b7cea582c..000000000000
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ /dev/null
@@ -1,533 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lustre/llite/rw26.c
- *
- * Lustre Lite I/O page cache routines for the 2.5/2.6 kernel version
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/stat.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <linux/uaccess.h>
-
-#include <linux/migrate.h>
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/mpage.h>
-#include <linux/writeback.h>
-#include <linux/pagemap.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-#include "../include/linux/lustre_compat25.h"
-
-/**
- * Implements Linux VM address_space::invalidatepage() method. This method is
- * called when the page is truncate from a file, either as a result of
- * explicit truncate, or when inode is removed from memory (as a result of
- * final iput(), umount, or memory pressure induced icache shrinking).
- *
- * [0, offset] bytes of the page remain valid (this is for a case of not-page
- * aligned truncate). Lustre leaves partially truncated page in the cache,
- * relying on struct inode::i_size to limit further accesses.
- */
-static void ll_invalidatepage(struct page *vmpage, unsigned int offset,
-			      unsigned int length)
-{
-	struct inode     *inode;
-	struct lu_env    *env;
-	struct cl_page   *page;
-	struct cl_object *obj;
-
-	int refcheck;
-
-	LASSERT(PageLocked(vmpage));
-	LASSERT(!PageWriteback(vmpage));
-
-	/*
-	 * It is safe to not check anything in invalidatepage/releasepage
-	 * below because they are run with page locked and all our io is
-	 * happening with locked page too
-	 */
-	if (offset == 0 && length == PAGE_CACHE_SIZE) {
-		env = cl_env_get(&refcheck);
-		if (!IS_ERR(env)) {
-			inode = vmpage->mapping->host;
-			obj = ll_i2info(inode)->lli_clob;
-			if (obj != NULL) {
-				page = cl_vmpage_page(vmpage, obj);
-				if (page != NULL) {
-					lu_ref_add(&page->cp_reference,
-						   "delete", vmpage);
-					cl_page_delete(env, page);
-					lu_ref_del(&page->cp_reference,
-						   "delete", vmpage);
-					cl_page_put(env, page);
-				}
-			} else
-				LASSERT(vmpage->private == 0);
-			cl_env_put(env, &refcheck);
-		}
-	}
-}
-
-#ifdef HAVE_RELEASEPAGE_WITH_INT
-#define RELEASEPAGE_ARG_TYPE int
-#else
-#define RELEASEPAGE_ARG_TYPE gfp_t
-#endif
-static int ll_releasepage(struct page *vmpage, RELEASEPAGE_ARG_TYPE gfp_mask)
-{
-	struct cl_env_nest nest;
-	struct lu_env     *env;
-	struct cl_object  *obj;
-	struct cl_page    *page;
-	struct address_space *mapping;
-	int result;
-
-	LASSERT(PageLocked(vmpage));
-	if (PageWriteback(vmpage) || PageDirty(vmpage))
-		return 0;
-
-	mapping = vmpage->mapping;
-	if (mapping == NULL)
-		return 1;
-
-	obj = ll_i2info(mapping->host)->lli_clob;
-	if (obj == NULL)
-		return 1;
-
-	/* 1 for page allocator, 1 for cl_page and 1 for page cache */
-	if (page_count(vmpage) > 3)
-		return 0;
-
-	/* TODO: determine what gfp should be used by @gfp_mask. */
-	env = cl_env_nested_get(&nest);
-	if (IS_ERR(env))
-		/* If we can't allocate an env we won't call cl_page_put()
-		 * later on which further means it's impossible to drop
-		 * page refcount by cl_page, so ask kernel to not free
-		 * this page. */
-		return 0;
-
-	page = cl_vmpage_page(vmpage, obj);
-	result = page == NULL;
-	if (page != NULL) {
-		if (!cl_page_in_use(page)) {
-			result = 1;
-			cl_page_delete(env, page);
-		}
-		cl_page_put(env, page);
-	}
-	cl_env_nested_put(&nest, env);
-	return result;
-}
-
-static int ll_set_page_dirty(struct page *vmpage)
-{
-#if 0
-	struct cl_page    *page = vvp_vmpage_page_transient(vmpage);
-	struct vvp_object *obj  = cl_inode2vvp(vmpage->mapping->host);
-	struct vvp_page   *cpg;
-
-	/*
-	 * XXX should page method be called here?
-	 */
-	LASSERT(&obj->co_cl == page->cp_obj);
-	cpg = cl2vvp_page(cl_page_at(page, &vvp_device_type));
-	/*
-	 * XXX cannot do much here, because page is possibly not locked:
-	 * sys_munmap()->...
-	 *     ->unmap_page_range()->zap_pte_range()->set_page_dirty().
-	 */
-	vvp_write_pending(obj, cpg);
-#endif
-	return __set_page_dirty_nobuffers(vmpage);
-}
-
-#define MAX_DIRECTIO_SIZE (2*1024*1024*1024UL)
-
-static inline int ll_get_user_pages(int rw, unsigned long user_addr,
-				    size_t size, struct page ***pages,
-				    int *max_pages)
-{
-	int result = -ENOMEM;
-
-	/* set an arbitrary limit to prevent arithmetic overflow */
-	if (size > MAX_DIRECTIO_SIZE) {
-		*pages = NULL;
-		return -EFBIG;
-	}
-
-	*max_pages = (user_addr + size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-	*max_pages -= user_addr >> PAGE_CACHE_SHIFT;
-
-	*pages = libcfs_kvzalloc(*max_pages * sizeof(**pages), GFP_NOFS);
-	if (*pages) {
-		result = get_user_pages_fast(user_addr, *max_pages,
-					     (rw == READ), *pages);
-		if (unlikely(result <= 0))
-			kvfree(*pages);
-	}
-
-	return result;
-}
-
-/*  ll_free_user_pages - tear down page struct array
- *  @pages: array of page struct pointers underlying target buffer */
-static void ll_free_user_pages(struct page **pages, int npages, int do_dirty)
-{
-	int i;
-
-	for (i = 0; i < npages; i++) {
-		if (do_dirty)
-			set_page_dirty_lock(pages[i]);
-		page_cache_release(pages[i]);
-	}
-	kvfree(pages);
-}
-
-ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io,
-			   int rw, struct inode *inode,
-			   struct ll_dio_pages *pv)
-{
-	struct cl_page    *clp;
-	struct cl_2queue  *queue;
-	struct cl_object  *obj = io->ci_obj;
-	int i;
-	ssize_t rc = 0;
-	loff_t file_offset  = pv->ldp_start_offset;
-	long size	   = pv->ldp_size;
-	int page_count      = pv->ldp_nr;
-	struct page **pages = pv->ldp_pages;
-	long page_size      = cl_page_size(obj);
-	bool do_io;
-	int  io_pages       = 0;
-
-	queue = &io->ci_queue;
-	cl_2queue_init(queue);
-	for (i = 0; i < page_count; i++) {
-		if (pv->ldp_offsets)
-		    file_offset = pv->ldp_offsets[i];
-
-		LASSERT(!(file_offset & (page_size - 1)));
-		clp = cl_page_find(env, obj, cl_index(obj, file_offset),
-				   pv->ldp_pages[i], CPT_TRANSIENT);
-		if (IS_ERR(clp)) {
-			rc = PTR_ERR(clp);
-			break;
-		}
-
-		rc = cl_page_own(env, io, clp);
-		if (rc) {
-			LASSERT(clp->cp_state == CPS_FREEING);
-			cl_page_put(env, clp);
-			break;
-		}
-
-		do_io = true;
-
-		/* check the page type: if the page is a host page, then do
-		 * write directly */
-		if (clp->cp_type == CPT_CACHEABLE) {
-			struct page *vmpage = cl_page_vmpage(env, clp);
-			struct page *src_page;
-			struct page *dst_page;
-			void       *src;
-			void       *dst;
-
-			src_page = (rw == WRITE) ? pages[i] : vmpage;
-			dst_page = (rw == WRITE) ? vmpage : pages[i];
-
-			src = kmap_atomic(src_page);
-			dst = kmap_atomic(dst_page);
-			memcpy(dst, src, min(page_size, size));
-			kunmap_atomic(dst);
-			kunmap_atomic(src);
-
-			/* make sure page will be added to the transfer by
-			 * cl_io_submit()->...->vvp_page_prep_write(). */
-			if (rw == WRITE)
-				set_page_dirty(vmpage);
-
-			if (rw == READ) {
-				/* do not issue the page for read, since it
-				 * may reread a ra page which has NOT uptodate
-				 * bit set. */
-				cl_page_disown(env, io, clp);
-				do_io = false;
-			}
-		}
-
-		if (likely(do_io)) {
-			cl_2queue_add(queue, clp);
-
-			/*
-			 * Set page clip to tell transfer formation engine
-			 * that page has to be sent even if it is beyond KMS.
-			 */
-			cl_page_clip(env, clp, 0, min(size, page_size));
-
-			++io_pages;
-		}
-
-		/* drop the reference count for cl_page_find */
-		cl_page_put(env, clp);
-		size -= page_size;
-		file_offset += page_size;
-	}
-
-	if (rc == 0 && io_pages) {
-		rc = cl_io_submit_sync(env, io,
-				       rw == READ ? CRT_READ : CRT_WRITE,
-				       queue, 0);
-	}
-	if (rc == 0)
-		rc = pv->ldp_size;
-
-	cl_2queue_discard(env, io, queue);
-	cl_2queue_disown(env, io, queue);
-	cl_2queue_fini(env, queue);
-	return rc;
-}
-EXPORT_SYMBOL(ll_direct_rw_pages);
-
-static ssize_t ll_direct_IO_26_seg(const struct lu_env *env, struct cl_io *io,
-				   int rw, struct inode *inode,
-				   struct address_space *mapping,
-				   size_t size, loff_t file_offset,
-				   struct page **pages, int page_count)
-{
-    struct ll_dio_pages pvec = { .ldp_pages	= pages,
-				 .ldp_nr	   = page_count,
-				 .ldp_size	 = size,
-				 .ldp_offsets      = NULL,
-				 .ldp_start_offset = file_offset
-			       };
-
-    return ll_direct_rw_pages(env, io, rw, inode, &pvec);
-}
-
-#ifdef KMALLOC_MAX_SIZE
-#define MAX_MALLOC KMALLOC_MAX_SIZE
-#else
-#define MAX_MALLOC (128 * 1024)
-#endif
-
-/* This is the maximum size of a single O_DIRECT request, based on the
- * kmalloc limit.  We need to fit all of the brw_page structs, each one
- * representing PAGE_SIZE worth of user data, into a single buffer, and
- * then truncate this to be a full-sized RPC.  For 4kB PAGE_SIZE this is
- * up to 22MB for 128kB kmalloc and up to 682MB for 4MB kmalloc. */
-#define MAX_DIO_SIZE ((MAX_MALLOC / sizeof(struct brw_page) * PAGE_CACHE_SIZE) & \
-		      ~(DT_MAX_BRW_SIZE - 1))
-static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter,
-			       loff_t file_offset)
-{
-	struct lu_env *env;
-	struct cl_io *io;
-	struct file *file = iocb->ki_filp;
-	struct inode *inode = file->f_mapping->host;
-	struct ccc_object *obj = cl_inode2ccc(inode);
-	ssize_t count = iov_iter_count(iter);
-	ssize_t tot_bytes = 0, result = 0;
-	struct ll_inode_info *lli = ll_i2info(inode);
-	long size = MAX_DIO_SIZE;
-	int refcheck;
-
-	if (!lli->lli_has_smd)
-		return -EBADF;
-
-	/* FIXME: io smaller than PAGE_SIZE is broken on ia64 ??? */
-	if ((file_offset & ~CFS_PAGE_MASK) || (count & ~CFS_PAGE_MASK))
-		return -EINVAL;
-
-	CDEBUG(D_VFSTRACE,
-	       "VFS Op:inode=%lu/%u(%p), size=%zd (max %lu), offset=%lld=%llx, pages %zd (max %lu)\n",
-	       inode->i_ino, inode->i_generation, inode, count, MAX_DIO_SIZE,
-	       file_offset, file_offset, count >> PAGE_CACHE_SHIFT,
-	       MAX_DIO_SIZE >> PAGE_CACHE_SHIFT);
-
-	/* Check that all user buffers are aligned as well */
-	if (iov_iter_alignment(iter) & ~CFS_PAGE_MASK)
-		return -EINVAL;
-
-	env = cl_env_get(&refcheck);
-	LASSERT(!IS_ERR(env));
-	io = ccc_env_io(env)->cui_cl.cis_io;
-	LASSERT(io != NULL);
-
-	/* 0. Need locking between buffered and direct access. and race with
-	 *    size changing by concurrent truncates and writes.
-	 * 1. Need inode mutex to operate transient pages.
-	 */
-	if (iov_iter_rw(iter) == READ)
-		mutex_lock(&inode->i_mutex);
-
-	LASSERT(obj->cob_transient_pages == 0);
-	while (iov_iter_count(iter)) {
-		struct page **pages;
-		size_t offs;
-
-		count = min_t(size_t, iov_iter_count(iter), size);
-		if (iov_iter_rw(iter) == READ) {
-			if (file_offset >= i_size_read(inode))
-				break;
-			if (file_offset + count > i_size_read(inode))
-				count = i_size_read(inode) - file_offset;
-		}
-
-		result = iov_iter_get_pages_alloc(iter, &pages, count, &offs);
-		if (likely(result > 0)) {
-			int n = DIV_ROUND_UP(result + offs, PAGE_SIZE);
-			result = ll_direct_IO_26_seg(env, io, iov_iter_rw(iter),
-						     inode, file->f_mapping,
-						     result, file_offset, pages,
-						     n);
-			ll_free_user_pages(pages, n, iov_iter_rw(iter) == READ);
-		}
-		if (unlikely(result <= 0)) {
-			/* If we can't allocate a large enough buffer
-			 * for the request, shrink it to a smaller
-			 * PAGE_SIZE multiple and try again.
-			 * We should always be able to kmalloc for a
-			 * page worth of page pointers = 4MB on i386. */
-			if (result == -ENOMEM &&
-			    size > (PAGE_CACHE_SIZE / sizeof(*pages)) *
-				   PAGE_CACHE_SIZE) {
-				size = ((((size / 2) - 1) |
-					 ~CFS_PAGE_MASK) + 1) &
-					CFS_PAGE_MASK;
-				CDEBUG(D_VFSTRACE, "DIO size now %lu\n",
-				       size);
-				continue;
-			}
-
-			goto out;
-		}
-		iov_iter_advance(iter, result);
-		tot_bytes += result;
-		file_offset += result;
-	}
-out:
-	LASSERT(obj->cob_transient_pages == 0);
-	if (iov_iter_rw(iter) == READ)
-		mutex_unlock(&inode->i_mutex);
-
-	if (tot_bytes > 0) {
-		if (iov_iter_rw(iter) == WRITE) {
-			struct lov_stripe_md *lsm;
-
-			lsm = ccc_inode_lsm_get(inode);
-			LASSERT(lsm != NULL);
-			lov_stripe_lock(lsm);
-			obd_adjust_kms(ll_i2dtexp(inode), lsm, file_offset, 0);
-			lov_stripe_unlock(lsm);
-			ccc_inode_lsm_put(inode, lsm);
-		}
-	}
-
-	cl_env_put(env, &refcheck);
-	return tot_bytes ? : result;
-}
-
-static int ll_write_begin(struct file *file, struct address_space *mapping,
-			 loff_t pos, unsigned len, unsigned flags,
-			 struct page **pagep, void **fsdata)
-{
-	pgoff_t index = pos >> PAGE_CACHE_SHIFT;
-	struct page *page;
-	int rc;
-	unsigned from = pos & (PAGE_CACHE_SIZE - 1);
-
-	page = grab_cache_page_write_begin(mapping, index, flags);
-	if (!page)
-		return -ENOMEM;
-
-	*pagep = page;
-
-	rc = ll_prepare_write(file, page, from, from + len);
-	if (rc) {
-		unlock_page(page);
-		page_cache_release(page);
-	}
-	return rc;
-}
-
-static int ll_write_end(struct file *file, struct address_space *mapping,
-			loff_t pos, unsigned len, unsigned copied,
-			struct page *page, void *fsdata)
-{
-	unsigned from = pos & (PAGE_CACHE_SIZE - 1);
-	int rc;
-
-	rc = ll_commit_write(file, page, from, from + copied);
-	unlock_page(page);
-	page_cache_release(page);
-
-	return rc ?: copied;
-}
-
-#ifdef CONFIG_MIGRATION
-static int ll_migratepage(struct address_space *mapping,
-			 struct page *newpage, struct page *page,
-			 enum migrate_mode mode
-		)
-{
-	/* Always fail page migration until we have a proper implementation */
-	return -EIO;
-}
-#endif
-
-const struct address_space_operations ll_aops = {
-	.readpage	= ll_readpage,
-	.direct_IO      = ll_direct_IO_26,
-	.writepage      = ll_writepage,
-	.writepages     = ll_writepages,
-	.set_page_dirty = ll_set_page_dirty,
-	.write_begin    = ll_write_begin,
-	.write_end      = ll_write_end,
-	.invalidatepage = ll_invalidatepage,
-	.releasepage    = (void *)ll_releasepage,
-#ifdef CONFIG_MIGRATION
-	.migratepage    = ll_migratepage,
-#endif
-};
diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c
deleted file mode 100644
index f97371dd8539..000000000000
--- a/drivers/staging/lustre/lustre/llite/statahead.c
+++ /dev/null
@@ -1,1728 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/pagemap.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/obd_support.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_dlm.h"
-#include "llite_internal.h"
-
-#define SA_OMITTED_ENTRY_MAX 8ULL
-
-typedef enum {
-	/** negative values are for error cases */
-	SA_ENTRY_INIT = 0,      /** init entry */
-	SA_ENTRY_SUCC = 1,      /** stat succeed */
-	SA_ENTRY_INVA = 2,      /** invalid entry */
-	SA_ENTRY_DEST = 3,      /** entry to be destroyed */
-} se_stat_t;
-
-struct ll_sa_entry {
-	/* link into sai->sai_entries */
-	struct list_head	      se_link;
-	/* link into sai->sai_entries_{received,stated} */
-	struct list_head	      se_list;
-	/* link into sai hash table locally */
-	struct list_head	      se_hash;
-	/* entry reference count */
-	atomic_t	    se_refcount;
-	/* entry index in the sai */
-	__u64		   se_index;
-	/* low layer ldlm lock handle */
-	__u64		   se_handle;
-	/* entry status */
-	se_stat_t	       se_stat;
-	/* entry size, contains name */
-	int		     se_size;
-	/* pointer to async getattr enqueue info */
-	struct md_enqueue_info *se_minfo;
-	/* pointer to the async getattr request */
-	struct ptlrpc_request  *se_req;
-	/* pointer to the target inode */
-	struct inode	   *se_inode;
-	/* entry name */
-	struct qstr	     se_qstr;
-};
-
-static unsigned int sai_generation;
-static DEFINE_SPINLOCK(sai_generation_lock);
-
-static inline int ll_sa_entry_unhashed(struct ll_sa_entry *entry)
-{
-	return list_empty(&entry->se_hash);
-}
-
-/*
- * The entry only can be released by the caller, it is necessary to hold lock.
- */
-static inline int ll_sa_entry_stated(struct ll_sa_entry *entry)
-{
-	smp_rmb();
-	return (entry->se_stat != SA_ENTRY_INIT);
-}
-
-static inline int ll_sa_entry_hash(int val)
-{
-	return val & LL_SA_CACHE_MASK;
-}
-
-/*
- * Insert entry to hash SA table.
- */
-static inline void
-ll_sa_entry_enhash(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
-{
-	int i = ll_sa_entry_hash(entry->se_qstr.hash);
-
-	spin_lock(&sai->sai_cache_lock[i]);
-	list_add_tail(&entry->se_hash, &sai->sai_cache[i]);
-	spin_unlock(&sai->sai_cache_lock[i]);
-}
-
-/*
- * Remove entry from SA table.
- */
-static inline void
-ll_sa_entry_unhash(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
-{
-	int i = ll_sa_entry_hash(entry->se_qstr.hash);
-
-	spin_lock(&sai->sai_cache_lock[i]);
-	list_del_init(&entry->se_hash);
-	spin_unlock(&sai->sai_cache_lock[i]);
-}
-
-static inline int agl_should_run(struct ll_statahead_info *sai,
-				 struct inode *inode)
-{
-	return (inode != NULL && S_ISREG(inode->i_mode) && sai->sai_agl_valid);
-}
-
-static inline struct ll_sa_entry *
-sa_first_received_entry(struct ll_statahead_info *sai)
-{
-	return list_entry(sai->sai_entries_received.next,
-			      struct ll_sa_entry, se_list);
-}
-
-static inline struct ll_inode_info *
-agl_first_entry(struct ll_statahead_info *sai)
-{
-	return list_entry(sai->sai_entries_agl.next,
-			      struct ll_inode_info, lli_agl_list);
-}
-
-static inline int sa_sent_full(struct ll_statahead_info *sai)
-{
-	return atomic_read(&sai->sai_cache_count) >= sai->sai_max;
-}
-
-static inline int sa_received_empty(struct ll_statahead_info *sai)
-{
-	return list_empty(&sai->sai_entries_received);
-}
-
-static inline int agl_list_empty(struct ll_statahead_info *sai)
-{
-	return list_empty(&sai->sai_entries_agl);
-}
-
-/**
- * (1) hit ratio less than 80%
- * or
- * (2) consecutive miss more than 8
- * then means low hit.
- */
-static inline int sa_low_hit(struct ll_statahead_info *sai)
-{
-	return ((sai->sai_hit > 7 && sai->sai_hit < 4 * sai->sai_miss) ||
-		(sai->sai_consecutive_miss > 8));
-}
-
-/*
- * If the given index is behind of statahead window more than
- * SA_OMITTED_ENTRY_MAX, then it is old.
- */
-static inline int is_omitted_entry(struct ll_statahead_info *sai, __u64 index)
-{
-	return ((__u64)sai->sai_max + index + SA_OMITTED_ENTRY_MAX <
-		 sai->sai_index);
-}
-
-/*
- * Insert it into sai_entries tail when init.
- */
-static struct ll_sa_entry *
-ll_sa_entry_alloc(struct ll_statahead_info *sai, __u64 index,
-		  const char *name, int len)
-{
-	struct ll_inode_info *lli;
-	struct ll_sa_entry   *entry;
-	int		   entry_size;
-	char		 *dname;
-
-	entry_size = sizeof(struct ll_sa_entry) + (len & ~3) + 4;
-	entry = kzalloc(entry_size, GFP_NOFS);
-	if (unlikely(!entry))
-		return ERR_PTR(-ENOMEM);
-
-	CDEBUG(D_READA, "alloc sa entry %.*s(%p) index %llu\n",
-	       len, name, entry, index);
-
-	entry->se_index = index;
-
-	/*
-	 * Statahead entry reference rules:
-	 *
-	 * 1) When statahead entry is initialized, its reference is set as 2.
-	 *    One reference is used by the directory scanner. When the scanner
-	 *    searches the statahead cache for the given name, it can perform
-	 *    lockless hash lookup (only the scanner can remove entry from hash
-	 *    list), and once found, it needn't to call "atomic_inc()" for the
-	 *    entry reference. So the performance is improved. After using the
-	 *    statahead entry, the scanner will call "atomic_dec()" to drop the
-	 *    reference held when initialization. If it is the last reference,
-	 *    the statahead entry will be freed.
-	 *
-	 * 2) All other threads, including statahead thread and ptlrpcd thread,
-	 *    when they process the statahead entry, the reference for target
-	 *    should be held to guarantee the entry will not be released by the
-	 *    directory scanner. After processing the entry, these threads will
-	 *    drop the entry reference. If it is the last reference, the entry
-	 *    will be freed.
-	 *
-	 *    The second reference when initializes the statahead entry is used
-	 *    by the statahead thread, following the rule 2).
-	 */
-	atomic_set(&entry->se_refcount, 2);
-	entry->se_stat = SA_ENTRY_INIT;
-	entry->se_size = entry_size;
-	dname = (char *)entry + sizeof(struct ll_sa_entry);
-	memcpy(dname, name, len);
-	dname[len] = 0;
-	entry->se_qstr.hash = full_name_hash(name, len);
-	entry->se_qstr.len = len;
-	entry->se_qstr.name = dname;
-
-	lli = ll_i2info(sai->sai_inode);
-	spin_lock(&lli->lli_sa_lock);
-	list_add_tail(&entry->se_link, &sai->sai_entries);
-	INIT_LIST_HEAD(&entry->se_list);
-	ll_sa_entry_enhash(sai, entry);
-	spin_unlock(&lli->lli_sa_lock);
-
-	atomic_inc(&sai->sai_cache_count);
-
-	return entry;
-}
-
-/*
- * Used by the directory scanner to search entry with name.
- *
- * Only the caller can remove the entry from hash, so it is unnecessary to hold
- * hash lock. It is caller's duty to release the init refcount on the entry, so
- * it is also unnecessary to increase refcount on the entry.
- */
-static struct ll_sa_entry *
-ll_sa_entry_get_byname(struct ll_statahead_info *sai, const struct qstr *qstr)
-{
-	struct ll_sa_entry *entry;
-	int i = ll_sa_entry_hash(qstr->hash);
-
-	list_for_each_entry(entry, &sai->sai_cache[i], se_hash) {
-		if (entry->se_qstr.hash == qstr->hash &&
-		    entry->se_qstr.len == qstr->len &&
-		    memcmp(entry->se_qstr.name, qstr->name, qstr->len) == 0)
-			return entry;
-	}
-	return NULL;
-}
-
-/*
- * Used by the async getattr request callback to find entry with index.
- *
- * Inside lli_sa_lock to prevent others to change the list during the search.
- * It needs to increase entry refcount before returning to guarantee that the
- * entry cannot be freed by others.
- */
-static struct ll_sa_entry *
-ll_sa_entry_get_byindex(struct ll_statahead_info *sai, __u64 index)
-{
-	struct ll_sa_entry *entry;
-
-	list_for_each_entry(entry, &sai->sai_entries, se_link) {
-		if (entry->se_index == index) {
-			LASSERT(atomic_read(&entry->se_refcount) > 0);
-			atomic_inc(&entry->se_refcount);
-			return entry;
-		}
-		if (entry->se_index > index)
-			break;
-	}
-	return NULL;
-}
-
-static void ll_sa_entry_cleanup(struct ll_statahead_info *sai,
-				 struct ll_sa_entry *entry)
-{
-	struct md_enqueue_info *minfo = entry->se_minfo;
-	struct ptlrpc_request  *req   = entry->se_req;
-
-	if (minfo) {
-		entry->se_minfo = NULL;
-		ll_intent_release(&minfo->mi_it);
-		iput(minfo->mi_dir);
-		kfree(minfo);
-	}
-
-	if (req) {
-		entry->se_req = NULL;
-		ptlrpc_req_finished(req);
-	}
-}
-
-static void ll_sa_entry_put(struct ll_statahead_info *sai,
-			     struct ll_sa_entry *entry)
-{
-	if (atomic_dec_and_test(&entry->se_refcount)) {
-		CDEBUG(D_READA, "free sa entry %.*s(%p) index %llu\n",
-		       entry->se_qstr.len, entry->se_qstr.name, entry,
-		       entry->se_index);
-
-		LASSERT(list_empty(&entry->se_link));
-		LASSERT(list_empty(&entry->se_list));
-		LASSERT(ll_sa_entry_unhashed(entry));
-
-		ll_sa_entry_cleanup(sai, entry);
-		iput(entry->se_inode);
-
-		kfree(entry);
-		atomic_dec(&sai->sai_cache_count);
-	}
-}
-
-static inline void
-do_sa_entry_fini(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
-{
-	struct ll_inode_info *lli = ll_i2info(sai->sai_inode);
-
-	LASSERT(!ll_sa_entry_unhashed(entry));
-	LASSERT(!list_empty(&entry->se_link));
-
-	ll_sa_entry_unhash(sai, entry);
-
-	spin_lock(&lli->lli_sa_lock);
-	entry->se_stat = SA_ENTRY_DEST;
-	list_del_init(&entry->se_link);
-	if (likely(!list_empty(&entry->se_list)))
-		list_del_init(&entry->se_list);
-	spin_unlock(&lli->lli_sa_lock);
-
-	ll_sa_entry_put(sai, entry);
-}
-
-/*
- * Delete it from sai_entries_stated list when fini.
- */
-static void
-ll_sa_entry_fini(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
-{
-	struct ll_sa_entry *pos, *next;
-
-	if (entry)
-		do_sa_entry_fini(sai, entry);
-
-	/* drop old entry, only 'scanner' process does this, no need to lock */
-	list_for_each_entry_safe(pos, next, &sai->sai_entries, se_link) {
-		if (!is_omitted_entry(sai, pos->se_index))
-			break;
-		do_sa_entry_fini(sai, pos);
-	}
-}
-
-/*
- * Inside lli_sa_lock.
- */
-static void
-do_sa_entry_to_stated(struct ll_statahead_info *sai,
-		      struct ll_sa_entry *entry, se_stat_t stat)
-{
-	struct ll_sa_entry *se;
-	struct list_head	 *pos = &sai->sai_entries_stated;
-
-	if (!list_empty(&entry->se_list))
-		list_del_init(&entry->se_list);
-
-	list_for_each_entry_reverse(se, &sai->sai_entries_stated, se_list) {
-		if (se->se_index < entry->se_index) {
-			pos = &se->se_list;
-			break;
-		}
-	}
-
-	list_add(&entry->se_list, pos);
-	entry->se_stat = stat;
-}
-
-/*
- * Move entry to sai_entries_stated and sort with the index.
- * \retval 1    -- entry to be destroyed.
- * \retval 0    -- entry is inserted into stated list.
- */
-static int
-ll_sa_entry_to_stated(struct ll_statahead_info *sai,
-		      struct ll_sa_entry *entry, se_stat_t stat)
-{
-	struct ll_inode_info *lli = ll_i2info(sai->sai_inode);
-	int		   ret = 1;
-
-	ll_sa_entry_cleanup(sai, entry);
-
-	spin_lock(&lli->lli_sa_lock);
-	if (likely(entry->se_stat != SA_ENTRY_DEST)) {
-		do_sa_entry_to_stated(sai, entry, stat);
-		ret = 0;
-	}
-	spin_unlock(&lli->lli_sa_lock);
-
-	return ret;
-}
-
-/*
- * Insert inode into the list of sai_entries_agl.
- */
-static void ll_agl_add(struct ll_statahead_info *sai,
-		       struct inode *inode, int index)
-{
-	struct ll_inode_info *child  = ll_i2info(inode);
-	struct ll_inode_info *parent = ll_i2info(sai->sai_inode);
-	int		   added  = 0;
-
-	spin_lock(&child->lli_agl_lock);
-	if (child->lli_agl_index == 0) {
-		child->lli_agl_index = index;
-		spin_unlock(&child->lli_agl_lock);
-
-		LASSERT(list_empty(&child->lli_agl_list));
-
-		igrab(inode);
-		spin_lock(&parent->lli_agl_lock);
-		if (agl_list_empty(sai))
-			added = 1;
-		list_add_tail(&child->lli_agl_list, &sai->sai_entries_agl);
-		spin_unlock(&parent->lli_agl_lock);
-	} else {
-		spin_unlock(&child->lli_agl_lock);
-	}
-
-	if (added > 0)
-		wake_up(&sai->sai_agl_thread.t_ctl_waitq);
-}
-
-static struct ll_statahead_info *ll_sai_alloc(void)
-{
-	struct ll_statahead_info *sai;
-	int		       i;
-
-	sai = kzalloc(sizeof(*sai), GFP_NOFS);
-	if (!sai)
-		return NULL;
-
-	atomic_set(&sai->sai_refcount, 1);
-
-	spin_lock(&sai_generation_lock);
-	sai->sai_generation = ++sai_generation;
-	if (unlikely(sai_generation == 0))
-		sai->sai_generation = ++sai_generation;
-	spin_unlock(&sai_generation_lock);
-
-	sai->sai_max = LL_SA_RPC_MIN;
-	sai->sai_index = 1;
-	init_waitqueue_head(&sai->sai_waitq);
-	init_waitqueue_head(&sai->sai_thread.t_ctl_waitq);
-	init_waitqueue_head(&sai->sai_agl_thread.t_ctl_waitq);
-
-	INIT_LIST_HEAD(&sai->sai_entries);
-	INIT_LIST_HEAD(&sai->sai_entries_received);
-	INIT_LIST_HEAD(&sai->sai_entries_stated);
-	INIT_LIST_HEAD(&sai->sai_entries_agl);
-
-	for (i = 0; i < LL_SA_CACHE_SIZE; i++) {
-		INIT_LIST_HEAD(&sai->sai_cache[i]);
-		spin_lock_init(&sai->sai_cache_lock[i]);
-	}
-	atomic_set(&sai->sai_cache_count, 0);
-
-	return sai;
-}
-
-static inline struct ll_statahead_info *
-ll_sai_get(struct ll_statahead_info *sai)
-{
-	atomic_inc(&sai->sai_refcount);
-	return sai;
-}
-
-static void ll_sai_put(struct ll_statahead_info *sai)
-{
-	struct inode	 *inode = sai->sai_inode;
-	struct ll_inode_info *lli   = ll_i2info(inode);
-
-	if (atomic_dec_and_lock(&sai->sai_refcount, &lli->lli_sa_lock)) {
-		struct ll_sa_entry *entry, *next;
-
-		if (unlikely(atomic_read(&sai->sai_refcount) > 0)) {
-			/* It is race case, the interpret callback just hold
-			 * a reference count */
-			spin_unlock(&lli->lli_sa_lock);
-			return;
-		}
-
-		LASSERT(lli->lli_opendir_key == NULL);
-		LASSERT(thread_is_stopped(&sai->sai_thread));
-		LASSERT(thread_is_stopped(&sai->sai_agl_thread));
-
-		lli->lli_sai = NULL;
-		lli->lli_opendir_pid = 0;
-		spin_unlock(&lli->lli_sa_lock);
-
-		if (sai->sai_sent > sai->sai_replied)
-			CDEBUG(D_READA, "statahead for dir "DFID
-			      " does not finish: [sent:%llu] [replied:%llu]\n",
-			      PFID(&lli->lli_fid),
-			      sai->sai_sent, sai->sai_replied);
-
-		list_for_each_entry_safe(entry, next,
-					     &sai->sai_entries, se_link)
-			do_sa_entry_fini(sai, entry);
-
-		LASSERT(list_empty(&sai->sai_entries));
-		LASSERT(sa_received_empty(sai));
-		LASSERT(list_empty(&sai->sai_entries_stated));
-
-		LASSERT(atomic_read(&sai->sai_cache_count) == 0);
-		LASSERT(agl_list_empty(sai));
-
-		iput(inode);
-		kfree(sai);
-	}
-}
-
-/* Do NOT forget to drop inode refcount when into sai_entries_agl. */
-static void ll_agl_trigger(struct inode *inode, struct ll_statahead_info *sai)
-{
-	struct ll_inode_info *lli   = ll_i2info(inode);
-	__u64		 index = lli->lli_agl_index;
-	int		   rc;
-
-	LASSERT(list_empty(&lli->lli_agl_list));
-
-	/* AGL maybe fall behind statahead with one entry */
-	if (is_omitted_entry(sai, index + 1)) {
-		lli->lli_agl_index = 0;
-		iput(inode);
-		return;
-	}
-
-	/* Someone is in glimpse (sync or async), do nothing. */
-	rc = down_write_trylock(&lli->lli_glimpse_sem);
-	if (rc == 0) {
-		lli->lli_agl_index = 0;
-		iput(inode);
-		return;
-	}
-
-	/*
-	 * Someone triggered glimpse within 1 sec before.
-	 * 1) The former glimpse succeeded with glimpse lock granted by OST, and
-	 *    if the lock is still cached on client, AGL needs to do nothing. If
-	 *    it is cancelled by other client, AGL maybe cannot obtain new lock
-	 *    for no glimpse callback triggered by AGL.
-	 * 2) The former glimpse succeeded, but OST did not grant glimpse lock.
-	 *    Under such case, it is quite possible that the OST will not grant
-	 *    glimpse lock for AGL also.
-	 * 3) The former glimpse failed, compared with other two cases, it is
-	 *    relative rare. AGL can ignore such case, and it will not muchly
-	 *    affect the performance.
-	 */
-	if (lli->lli_glimpse_time != 0 &&
-	    time_before(cfs_time_shift(-1), lli->lli_glimpse_time)) {
-		up_write(&lli->lli_glimpse_sem);
-		lli->lli_agl_index = 0;
-		iput(inode);
-		return;
-	}
-
-	CDEBUG(D_READA, "Handling (init) async glimpse: inode = "
-	       DFID", idx = %llu\n", PFID(&lli->lli_fid), index);
-
-	cl_agl(inode);
-	lli->lli_agl_index = 0;
-	lli->lli_glimpse_time = cfs_time_current();
-	up_write(&lli->lli_glimpse_sem);
-
-	CDEBUG(D_READA, "Handled (init) async glimpse: inode= "
-	       DFID", idx = %llu, rc = %d\n",
-	       PFID(&lli->lli_fid), index, rc);
-
-	iput(inode);
-}
-
-static void ll_post_statahead(struct ll_statahead_info *sai)
-{
-	struct inode	   *dir   = sai->sai_inode;
-	struct inode	   *child;
-	struct ll_inode_info   *lli   = ll_i2info(dir);
-	struct ll_sa_entry     *entry;
-	struct md_enqueue_info *minfo;
-	struct lookup_intent   *it;
-	struct ptlrpc_request  *req;
-	struct mdt_body	*body;
-	int		     rc    = 0;
-
-	spin_lock(&lli->lli_sa_lock);
-	if (unlikely(sa_received_empty(sai))) {
-		spin_unlock(&lli->lli_sa_lock);
-		return;
-	}
-	entry = sa_first_received_entry(sai);
-	atomic_inc(&entry->se_refcount);
-	list_del_init(&entry->se_list);
-	spin_unlock(&lli->lli_sa_lock);
-
-	LASSERT(entry->se_handle != 0);
-
-	minfo = entry->se_minfo;
-	it = &minfo->mi_it;
-	req = entry->se_req;
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
-		rc = -EFAULT;
-		goto out;
-	}
-
-	child = entry->se_inode;
-	if (child == NULL) {
-		/*
-		 * lookup.
-		 */
-		LASSERT(fid_is_zero(&minfo->mi_data.op_fid2));
-
-		/* XXX: No fid in reply, this is probably cross-ref case.
-		 * SA can't handle it yet. */
-		if (body->valid & OBD_MD_MDS) {
-			rc = -EAGAIN;
-			goto out;
-		}
-	} else {
-		/*
-		 * revalidate.
-		 */
-		/* unlinked and re-created with the same name */
-		if (unlikely(!lu_fid_eq(&minfo->mi_data.op_fid2, &body->fid1))){
-			entry->se_inode = NULL;
-			iput(child);
-			child = NULL;
-		}
-	}
-
-	it->d.lustre.it_lock_handle = entry->se_handle;
-	rc = md_revalidate_lock(ll_i2mdexp(dir), it, ll_inode2fid(dir), NULL);
-	if (rc != 1) {
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	rc = ll_prep_inode(&child, req, dir->i_sb, it);
-	if (rc)
-		goto out;
-
-	CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
-	       child, child->i_ino, child->i_generation);
-	ll_set_lock_data(ll_i2sbi(dir)->ll_md_exp, child, it, NULL);
-
-	entry->se_inode = child;
-
-	if (agl_should_run(sai, child))
-		ll_agl_add(sai, child, entry->se_index);
-
-out:
-	/* The "ll_sa_entry_to_stated()" will drop related ldlm ibits lock
-	 * reference count by calling "ll_intent_drop_lock()" in spite of the
-	 * above operations failed or not. Do not worry about calling
-	 * "ll_intent_drop_lock()" more than once. */
-	rc = ll_sa_entry_to_stated(sai, entry,
-				   rc < 0 ? SA_ENTRY_INVA : SA_ENTRY_SUCC);
-	if (rc == 0 && entry->se_index == sai->sai_index_wait)
-		wake_up(&sai->sai_waitq);
-	ll_sa_entry_put(sai, entry);
-}
-
-static int ll_statahead_interpret(struct ptlrpc_request *req,
-				  struct md_enqueue_info *minfo, int rc)
-{
-	struct lookup_intent     *it  = &minfo->mi_it;
-	struct inode	     *dir = minfo->mi_dir;
-	struct ll_inode_info     *lli = ll_i2info(dir);
-	struct ll_statahead_info *sai = NULL;
-	struct ll_sa_entry       *entry;
-	__u64			  handle = 0;
-	int		       wakeup;
-
-	if (it_disposition(it, DISP_LOOKUP_NEG))
-		rc = -ENOENT;
-
-	if (rc == 0) {
-		/* release ibits lock ASAP to avoid deadlock when statahead
-		 * thread enqueues lock on parent in readdir and another
-		 * process enqueues lock on child with parent lock held, eg.
-		 * unlink. */
-		handle = it->d.lustre.it_lock_handle;
-		ll_intent_drop_lock(it);
-	}
-
-	spin_lock(&lli->lli_sa_lock);
-	/* stale entry */
-	if (unlikely(lli->lli_sai == NULL ||
-		     lli->lli_sai->sai_generation != minfo->mi_generation)) {
-		spin_unlock(&lli->lli_sa_lock);
-		rc = -ESTALE;
-		goto out;
-	} else {
-		sai = ll_sai_get(lli->lli_sai);
-		if (unlikely(!thread_is_running(&sai->sai_thread))) {
-			sai->sai_replied++;
-			spin_unlock(&lli->lli_sa_lock);
-			rc = -EBADFD;
-			goto out;
-		}
-
-		entry = ll_sa_entry_get_byindex(sai, minfo->mi_cbdata);
-		if (entry == NULL) {
-			sai->sai_replied++;
-			spin_unlock(&lli->lli_sa_lock);
-			rc = -EIDRM;
-			goto out;
-		}
-
-		if (rc != 0) {
-			do_sa_entry_to_stated(sai, entry, SA_ENTRY_INVA);
-			wakeup = (entry->se_index == sai->sai_index_wait);
-		} else {
-			entry->se_minfo = minfo;
-			entry->se_req = ptlrpc_request_addref(req);
-			/* Release the async ibits lock ASAP to avoid deadlock
-			 * when statahead thread tries to enqueue lock on parent
-			 * for readpage and other tries to enqueue lock on child
-			 * with parent's lock held, for example: unlink. */
-			entry->se_handle = handle;
-			wakeup = sa_received_empty(sai);
-			list_add_tail(&entry->se_list,
-					  &sai->sai_entries_received);
-		}
-		sai->sai_replied++;
-		spin_unlock(&lli->lli_sa_lock);
-
-		ll_sa_entry_put(sai, entry);
-		if (wakeup)
-			wake_up(&sai->sai_thread.t_ctl_waitq);
-	}
-
-out:
-	if (rc != 0) {
-		ll_intent_release(it);
-		iput(dir);
-		kfree(minfo);
-	}
-	if (sai != NULL)
-		ll_sai_put(sai);
-	return rc;
-}
-
-static void sa_args_fini(struct md_enqueue_info *minfo,
-			 struct ldlm_enqueue_info *einfo)
-{
-	LASSERT(minfo && einfo);
-	iput(minfo->mi_dir);
-	capa_put(minfo->mi_data.op_capa1);
-	capa_put(minfo->mi_data.op_capa2);
-	kfree(minfo);
-	kfree(einfo);
-}
-
-/**
- * There is race condition between "capa_put" and "ll_statahead_interpret" for
- * accessing "op_data.op_capa[1,2]" as following:
- * "capa_put" releases "op_data.op_capa[1,2]"'s reference count after calling
- * "md_intent_getattr_async". But "ll_statahead_interpret" maybe run first, and
- * fill "op_data.op_capa[1,2]" as POISON, then cause "capa_put" access invalid
- * "ocapa". So here reserve "op_data.op_capa[1,2]" in "pcapa" before calling
- * "md_intent_getattr_async".
- */
-static int sa_args_init(struct inode *dir, struct inode *child,
-			struct ll_sa_entry *entry, struct md_enqueue_info **pmi,
-			struct ldlm_enqueue_info **pei,
-			struct obd_capa **pcapa)
-{
-	struct qstr	      *qstr = &entry->se_qstr;
-	struct ll_inode_info     *lli  = ll_i2info(dir);
-	struct md_enqueue_info   *minfo;
-	struct ldlm_enqueue_info *einfo;
-	struct md_op_data	*op_data;
-
-	einfo = kzalloc(sizeof(*einfo), GFP_NOFS);
-	if (!einfo)
-		return -ENOMEM;
-
-	minfo = kzalloc(sizeof(*minfo), GFP_NOFS);
-	if (!minfo) {
-		kfree(einfo);
-		return -ENOMEM;
-	}
-
-	op_data = ll_prep_md_op_data(&minfo->mi_data, dir, child, qstr->name,
-				     qstr->len, 0, LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data)) {
-		kfree(einfo);
-		kfree(minfo);
-		return PTR_ERR(op_data);
-	}
-
-	minfo->mi_it.it_op = IT_GETATTR;
-	minfo->mi_dir = igrab(dir);
-	minfo->mi_cb = ll_statahead_interpret;
-	minfo->mi_generation = lli->lli_sai->sai_generation;
-	minfo->mi_cbdata = entry->se_index;
-
-	einfo->ei_type   = LDLM_IBITS;
-	einfo->ei_mode   = it_to_lock_mode(&minfo->mi_it);
-	einfo->ei_cb_bl  = ll_md_blocking_ast;
-	einfo->ei_cb_cp  = ldlm_completion_ast;
-	einfo->ei_cb_gl  = NULL;
-	einfo->ei_cbdata = NULL;
-
-	*pmi = minfo;
-	*pei = einfo;
-	pcapa[0] = op_data->op_capa1;
-	pcapa[1] = op_data->op_capa2;
-
-	return 0;
-}
-
-static int do_sa_lookup(struct inode *dir, struct ll_sa_entry *entry)
-{
-	struct md_enqueue_info   *minfo;
-	struct ldlm_enqueue_info *einfo;
-	struct obd_capa	  *capas[2];
-	int		       rc;
-
-	rc = sa_args_init(dir, NULL, entry, &minfo, &einfo, capas);
-	if (rc)
-		return rc;
-
-	rc = md_intent_getattr_async(ll_i2mdexp(dir), minfo, einfo);
-	if (!rc) {
-		capa_put(capas[0]);
-		capa_put(capas[1]);
-	} else {
-		sa_args_fini(minfo, einfo);
-	}
-
-	return rc;
-}
-
-/**
- * similar to ll_revalidate_it().
- * \retval      1 -- dentry valid
- * \retval      0 -- will send stat-ahead request
- * \retval others -- prepare stat-ahead request failed
- */
-static int do_sa_revalidate(struct inode *dir, struct ll_sa_entry *entry,
-			    struct dentry *dentry)
-{
-	struct inode	     *inode = d_inode(dentry);
-	struct lookup_intent      it = { .it_op = IT_GETATTR,
-					 .d.lustre.it_lock_handle = 0 };
-	struct md_enqueue_info   *minfo;
-	struct ldlm_enqueue_info *einfo;
-	struct obd_capa	  *capas[2];
-	int rc;
-
-	if (unlikely(inode == NULL))
-		return 1;
-
-	if (d_mountpoint(dentry))
-		return 1;
-
-	entry->se_inode = igrab(inode);
-	rc = md_revalidate_lock(ll_i2mdexp(dir), &it, ll_inode2fid(inode),
-				NULL);
-	if (rc == 1) {
-		entry->se_handle = it.d.lustre.it_lock_handle;
-		ll_intent_release(&it);
-		return 1;
-	}
-
-	rc = sa_args_init(dir, inode, entry, &minfo, &einfo, capas);
-	if (rc) {
-		entry->se_inode = NULL;
-		iput(inode);
-		return rc;
-	}
-
-	rc = md_intent_getattr_async(ll_i2mdexp(dir), minfo, einfo);
-	if (!rc) {
-		capa_put(capas[0]);
-		capa_put(capas[1]);
-	} else {
-		entry->se_inode = NULL;
-		iput(inode);
-		sa_args_fini(minfo, einfo);
-	}
-
-	return rc;
-}
-
-static void ll_statahead_one(struct dentry *parent, const char *entry_name,
-			     int entry_name_len)
-{
-	struct inode	     *dir    = d_inode(parent);
-	struct ll_inode_info     *lli    = ll_i2info(dir);
-	struct ll_statahead_info *sai    = lli->lli_sai;
-	struct dentry	    *dentry = NULL;
-	struct ll_sa_entry       *entry;
-	int		       rc;
-	int		       rc1;
-
-	entry = ll_sa_entry_alloc(sai, sai->sai_index, entry_name,
-				  entry_name_len);
-	if (IS_ERR(entry))
-		return;
-
-	dentry = d_lookup(parent, &entry->se_qstr);
-	if (!dentry) {
-		rc = do_sa_lookup(dir, entry);
-	} else {
-		rc = do_sa_revalidate(dir, entry, dentry);
-		if (rc == 1 && agl_should_run(sai, d_inode(dentry)))
-			ll_agl_add(sai, d_inode(dentry), entry->se_index);
-	}
-
-	if (dentry != NULL)
-		dput(dentry);
-
-	if (rc) {
-		rc1 = ll_sa_entry_to_stated(sai, entry,
-					rc < 0 ? SA_ENTRY_INVA : SA_ENTRY_SUCC);
-		if (rc1 == 0 && entry->se_index == sai->sai_index_wait)
-			wake_up(&sai->sai_waitq);
-	} else {
-		sai->sai_sent++;
-	}
-
-	sai->sai_index++;
-	/* drop one refcount on entry by ll_sa_entry_alloc */
-	ll_sa_entry_put(sai, entry);
-}
-
-static int ll_agl_thread(void *arg)
-{
-	struct dentry	    *parent = (struct dentry *)arg;
-	struct inode	     *dir    = d_inode(parent);
-	struct ll_inode_info     *plli   = ll_i2info(dir);
-	struct ll_inode_info     *clli;
-	struct ll_sb_info	*sbi    = ll_i2sbi(dir);
-	struct ll_statahead_info *sai    = ll_sai_get(plli->lli_sai);
-	struct ptlrpc_thread     *thread = &sai->sai_agl_thread;
-	struct l_wait_info	lwi    = { 0 };
-
-	thread->t_pid = current_pid();
-	CDEBUG(D_READA, "agl thread started: sai %p, parent %pd\n",
-	       sai, parent);
-
-	atomic_inc(&sbi->ll_agl_total);
-	spin_lock(&plli->lli_agl_lock);
-	sai->sai_agl_valid = 1;
-	if (thread_is_init(thread))
-		/* If someone else has changed the thread state
-		 * (e.g. already changed to SVC_STOPPING), we can't just
-		 * blindly overwrite that setting. */
-		thread_set_flags(thread, SVC_RUNNING);
-	spin_unlock(&plli->lli_agl_lock);
-	wake_up(&thread->t_ctl_waitq);
-
-	while (1) {
-		l_wait_event(thread->t_ctl_waitq,
-			     !agl_list_empty(sai) ||
-			     !thread_is_running(thread),
-			     &lwi);
-
-		if (!thread_is_running(thread))
-			break;
-
-		spin_lock(&plli->lli_agl_lock);
-		/* The statahead thread maybe help to process AGL entries,
-		 * so check whether list empty again. */
-		if (!agl_list_empty(sai)) {
-			clli = agl_first_entry(sai);
-			list_del_init(&clli->lli_agl_list);
-			spin_unlock(&plli->lli_agl_lock);
-			ll_agl_trigger(&clli->lli_vfs_inode, sai);
-		} else {
-			spin_unlock(&plli->lli_agl_lock);
-		}
-	}
-
-	spin_lock(&plli->lli_agl_lock);
-	sai->sai_agl_valid = 0;
-	while (!agl_list_empty(sai)) {
-		clli = agl_first_entry(sai);
-		list_del_init(&clli->lli_agl_list);
-		spin_unlock(&plli->lli_agl_lock);
-		clli->lli_agl_index = 0;
-		iput(&clli->lli_vfs_inode);
-		spin_lock(&plli->lli_agl_lock);
-	}
-	thread_set_flags(thread, SVC_STOPPED);
-	spin_unlock(&plli->lli_agl_lock);
-	wake_up(&thread->t_ctl_waitq);
-	ll_sai_put(sai);
-	CDEBUG(D_READA, "agl thread stopped: sai %p, parent %pd\n",
-	       sai, parent);
-	return 0;
-}
-
-static void ll_start_agl(struct dentry *parent, struct ll_statahead_info *sai)
-{
-	struct ptlrpc_thread *thread = &sai->sai_agl_thread;
-	struct l_wait_info    lwi    = { 0 };
-	struct ll_inode_info  *plli;
-	struct task_struct *task;
-
-	CDEBUG(D_READA, "start agl thread: sai %p, parent %pd\n",
-	       sai, parent);
-
-	plli = ll_i2info(d_inode(parent));
-	task = kthread_run(ll_agl_thread, parent,
-			       "ll_agl_%u", plli->lli_opendir_pid);
-	if (IS_ERR(task)) {
-		CERROR("can't start ll_agl thread, rc: %ld\n", PTR_ERR(task));
-		thread_set_flags(thread, SVC_STOPPED);
-		return;
-	}
-
-	l_wait_event(thread->t_ctl_waitq,
-		     thread_is_running(thread) || thread_is_stopped(thread),
-		     &lwi);
-}
-
-static int ll_statahead_thread(void *arg)
-{
-	struct dentry	    *parent = (struct dentry *)arg;
-	struct inode	     *dir    = d_inode(parent);
-	struct ll_inode_info     *plli   = ll_i2info(dir);
-	struct ll_inode_info     *clli;
-	struct ll_sb_info	*sbi    = ll_i2sbi(dir);
-	struct ll_statahead_info *sai    = ll_sai_get(plli->lli_sai);
-	struct ptlrpc_thread     *thread = &sai->sai_thread;
-	struct ptlrpc_thread *agl_thread = &sai->sai_agl_thread;
-	struct page	      *page;
-	__u64		     pos    = 0;
-	int		       first  = 0;
-	int		       rc     = 0;
-	struct ll_dir_chain       chain;
-	struct l_wait_info	lwi    = { 0 };
-
-	thread->t_pid = current_pid();
-	CDEBUG(D_READA, "statahead thread starting: sai %p, parent %pd\n",
-	       sai, parent);
-
-	if (sbi->ll_flags & LL_SBI_AGL_ENABLED)
-		ll_start_agl(parent, sai);
-
-	atomic_inc(&sbi->ll_sa_total);
-	spin_lock(&plli->lli_sa_lock);
-	if (thread_is_init(thread))
-		/* If someone else has changed the thread state
-		 * (e.g. already changed to SVC_STOPPING), we can't just
-		 * blindly overwrite that setting. */
-		thread_set_flags(thread, SVC_RUNNING);
-	spin_unlock(&plli->lli_sa_lock);
-	wake_up(&thread->t_ctl_waitq);
-
-	ll_dir_chain_init(&chain);
-	page = ll_get_dir_page(dir, pos, &chain);
-
-	while (1) {
-		struct lu_dirpage *dp;
-		struct lu_dirent  *ent;
-
-		if (IS_ERR(page)) {
-			rc = PTR_ERR(page);
-			CDEBUG(D_READA, "error reading dir "DFID" at %llu/%llu: [rc %d] [parent %u]\n",
-			       PFID(ll_inode2fid(dir)), pos, sai->sai_index,
-			       rc, plli->lli_opendir_pid);
-			goto out;
-		}
-
-		dp = page_address(page);
-		for (ent = lu_dirent_start(dp); ent != NULL;
-		     ent = lu_dirent_next(ent)) {
-			__u64 hash;
-			int namelen;
-			char *name;
-
-			hash = le64_to_cpu(ent->lde_hash);
-			if (unlikely(hash < pos))
-				/*
-				 * Skip until we find target hash value.
-				 */
-				continue;
-
-			namelen = le16_to_cpu(ent->lde_namelen);
-			if (unlikely(namelen == 0))
-				/*
-				 * Skip dummy record.
-				 */
-				continue;
-
-			name = ent->lde_name;
-			if (name[0] == '.') {
-				if (namelen == 1) {
-					/*
-					 * skip "."
-					 */
-					continue;
-				} else if (name[1] == '.' && namelen == 2) {
-					/*
-					 * skip ".."
-					 */
-					continue;
-				} else if (!sai->sai_ls_all) {
-					/*
-					 * skip hidden files.
-					 */
-					sai->sai_skip_hidden++;
-					continue;
-				}
-			}
-
-			/*
-			 * don't stat-ahead first entry.
-			 */
-			if (unlikely(++first == 1))
-				continue;
-
-keep_it:
-			l_wait_event(thread->t_ctl_waitq,
-				     !sa_sent_full(sai) ||
-				     !sa_received_empty(sai) ||
-				     !agl_list_empty(sai) ||
-				     !thread_is_running(thread),
-				     &lwi);
-
-interpret_it:
-			while (!sa_received_empty(sai))
-				ll_post_statahead(sai);
-
-			if (unlikely(!thread_is_running(thread))) {
-				ll_release_page(page, 0);
-				rc = 0;
-				goto out;
-			}
-
-			/* If no window for metadata statahead, but there are
-			 * some AGL entries to be triggered, then try to help
-			 * to process the AGL entries. */
-			if (sa_sent_full(sai)) {
-				spin_lock(&plli->lli_agl_lock);
-				while (!agl_list_empty(sai)) {
-					clli = agl_first_entry(sai);
-					list_del_init(&clli->lli_agl_list);
-					spin_unlock(&plli->lli_agl_lock);
-					ll_agl_trigger(&clli->lli_vfs_inode,
-						       sai);
-
-					if (!sa_received_empty(sai))
-						goto interpret_it;
-
-					if (unlikely(
-						!thread_is_running(thread))) {
-						ll_release_page(page, 0);
-						rc = 0;
-						goto out;
-					}
-
-					if (!sa_sent_full(sai))
-						goto do_it;
-
-					spin_lock(&plli->lli_agl_lock);
-				}
-				spin_unlock(&plli->lli_agl_lock);
-
-				goto keep_it;
-			}
-
-do_it:
-			ll_statahead_one(parent, name, namelen);
-		}
-		pos = le64_to_cpu(dp->ldp_hash_end);
-		if (pos == MDS_DIR_END_OFF) {
-			/*
-			 * End of directory reached.
-			 */
-			ll_release_page(page, 0);
-			while (1) {
-				l_wait_event(thread->t_ctl_waitq,
-					     !sa_received_empty(sai) ||
-					     sai->sai_sent == sai->sai_replied||
-					     !thread_is_running(thread),
-					     &lwi);
-
-				while (!sa_received_empty(sai))
-					ll_post_statahead(sai);
-
-				if (unlikely(!thread_is_running(thread))) {
-					rc = 0;
-					goto out;
-				}
-
-				if (sai->sai_sent == sai->sai_replied &&
-				    sa_received_empty(sai))
-					break;
-			}
-
-			spin_lock(&plli->lli_agl_lock);
-			while (!agl_list_empty(sai) &&
-			       thread_is_running(thread)) {
-				clli = agl_first_entry(sai);
-				list_del_init(&clli->lli_agl_list);
-				spin_unlock(&plli->lli_agl_lock);
-				ll_agl_trigger(&clli->lli_vfs_inode, sai);
-				spin_lock(&plli->lli_agl_lock);
-			}
-			spin_unlock(&plli->lli_agl_lock);
-
-			rc = 0;
-			goto out;
-		} else if (1) {
-			/*
-			 * chain is exhausted.
-			 * Normal case: continue to the next page.
-			 */
-			ll_release_page(page, le32_to_cpu(dp->ldp_flags) &
-					      LDF_COLLIDE);
-			page = ll_get_dir_page(dir, pos, &chain);
-		} else {
-			LASSERT(le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
-			ll_release_page(page, 1);
-			/*
-			 * go into overflow page.
-			 */
-		}
-	}
-
-out:
-	if (sai->sai_agl_valid) {
-		spin_lock(&plli->lli_agl_lock);
-		thread_set_flags(agl_thread, SVC_STOPPING);
-		spin_unlock(&plli->lli_agl_lock);
-		wake_up(&agl_thread->t_ctl_waitq);
-
-		CDEBUG(D_READA, "stop agl thread: sai %p pid %u\n",
-		       sai, (unsigned int)agl_thread->t_pid);
-		l_wait_event(agl_thread->t_ctl_waitq,
-			     thread_is_stopped(agl_thread),
-			     &lwi);
-	} else {
-		/* Set agl_thread flags anyway. */
-		thread_set_flags(&sai->sai_agl_thread, SVC_STOPPED);
-	}
-	ll_dir_chain_fini(&chain);
-	spin_lock(&plli->lli_sa_lock);
-	if (!sa_received_empty(sai)) {
-		thread_set_flags(thread, SVC_STOPPING);
-		spin_unlock(&plli->lli_sa_lock);
-
-		/* To release the resources held by received entries. */
-		while (!sa_received_empty(sai))
-			ll_post_statahead(sai);
-
-		spin_lock(&plli->lli_sa_lock);
-	}
-	thread_set_flags(thread, SVC_STOPPED);
-	spin_unlock(&plli->lli_sa_lock);
-	wake_up(&sai->sai_waitq);
-	wake_up(&thread->t_ctl_waitq);
-	ll_sai_put(sai);
-	dput(parent);
-	CDEBUG(D_READA, "statahead thread stopped: sai %p, parent %pd\n",
-	       sai, parent);
-	return rc;
-}
-
-/**
- * called in ll_file_release().
- */
-void ll_stop_statahead(struct inode *dir, void *key)
-{
-	struct ll_inode_info *lli = ll_i2info(dir);
-
-	if (unlikely(key == NULL))
-		return;
-
-	spin_lock(&lli->lli_sa_lock);
-	if (lli->lli_opendir_key != key || lli->lli_opendir_pid == 0) {
-		spin_unlock(&lli->lli_sa_lock);
-		return;
-	}
-
-	lli->lli_opendir_key = NULL;
-
-	if (lli->lli_sai) {
-		struct l_wait_info lwi = { 0 };
-		struct ptlrpc_thread *thread = &lli->lli_sai->sai_thread;
-
-		if (!thread_is_stopped(thread)) {
-			thread_set_flags(thread, SVC_STOPPING);
-			spin_unlock(&lli->lli_sa_lock);
-			wake_up(&thread->t_ctl_waitq);
-
-			CDEBUG(D_READA, "stop statahead thread: sai %p pid %u\n",
-			       lli->lli_sai, (unsigned int)thread->t_pid);
-			l_wait_event(thread->t_ctl_waitq,
-				     thread_is_stopped(thread),
-				     &lwi);
-		} else {
-			spin_unlock(&lli->lli_sa_lock);
-		}
-
-		/*
-		 * Put the ref which was held when first statahead_enter.
-		 * It maybe not the last ref for some statahead requests
-		 * maybe inflight.
-		 */
-		ll_sai_put(lli->lli_sai);
-	} else {
-		lli->lli_opendir_pid = 0;
-		spin_unlock(&lli->lli_sa_lock);
-	}
-}
-
-enum {
-	/**
-	 * not first dirent, or is "."
-	 */
-	LS_NONE_FIRST_DE = 0,
-	/**
-	 * the first non-hidden dirent
-	 */
-	LS_FIRST_DE,
-	/**
-	 * the first hidden dirent, that is "."
-	 */
-	LS_FIRST_DOT_DE
-};
-
-static int is_first_dirent(struct inode *dir, struct dentry *dentry)
-{
-	struct ll_dir_chain   chain;
-	struct qstr	  *target = &dentry->d_name;
-	struct page	  *page;
-	__u64		 pos    = 0;
-	int		   dot_de;
-	int		   rc     = LS_NONE_FIRST_DE;
-
-	ll_dir_chain_init(&chain);
-	page = ll_get_dir_page(dir, pos, &chain);
-
-	while (1) {
-		struct lu_dirpage *dp;
-		struct lu_dirent  *ent;
-
-		if (IS_ERR(page)) {
-			struct ll_inode_info *lli = ll_i2info(dir);
-
-			rc = PTR_ERR(page);
-			CERROR("error reading dir "DFID" at %llu: [rc %d] [parent %u]\n",
-			       PFID(ll_inode2fid(dir)), pos,
-			       rc, lli->lli_opendir_pid);
-			break;
-		}
-
-		dp = page_address(page);
-		for (ent = lu_dirent_start(dp); ent != NULL;
-		     ent = lu_dirent_next(ent)) {
-			__u64 hash;
-			int namelen;
-			char *name;
-
-			hash = le64_to_cpu(ent->lde_hash);
-			/* The ll_get_dir_page() can return any page containing
-			 * the given hash which may be not the start hash. */
-			if (unlikely(hash < pos))
-				continue;
-
-			namelen = le16_to_cpu(ent->lde_namelen);
-			if (unlikely(namelen == 0))
-				/*
-				 * skip dummy record.
-				 */
-				continue;
-
-			name = ent->lde_name;
-			if (name[0] == '.') {
-				if (namelen == 1)
-					/*
-					 * skip "."
-					 */
-					continue;
-				else if (name[1] == '.' && namelen == 2)
-					/*
-					 * skip ".."
-					 */
-					continue;
-				else
-					dot_de = 1;
-			} else {
-				dot_de = 0;
-			}
-
-			if (dot_de && target->name[0] != '.') {
-				CDEBUG(D_READA, "%.*s skip hidden file %.*s\n",
-				       target->len, target->name,
-				       namelen, name);
-				continue;
-			}
-
-			if (target->len != namelen ||
-			    memcmp(target->name, name, namelen) != 0)
-				rc = LS_NONE_FIRST_DE;
-			else if (!dot_de)
-				rc = LS_FIRST_DE;
-			else
-				rc = LS_FIRST_DOT_DE;
-
-			ll_release_page(page, 0);
-			goto out;
-		}
-		pos = le64_to_cpu(dp->ldp_hash_end);
-		if (pos == MDS_DIR_END_OFF) {
-			/*
-			 * End of directory reached.
-			 */
-			ll_release_page(page, 0);
-			break;
-		} else if (1) {
-			/*
-			 * chain is exhausted
-			 * Normal case: continue to the next page.
-			 */
-			ll_release_page(page, le32_to_cpu(dp->ldp_flags) &
-					      LDF_COLLIDE);
-			page = ll_get_dir_page(dir, pos, &chain);
-		} else {
-			/*
-			 * go into overflow page.
-			 */
-			LASSERT(le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
-			ll_release_page(page, 1);
-		}
-	}
-
-out:
-	ll_dir_chain_fini(&chain);
-	return rc;
-}
-
-static void
-ll_sai_unplug(struct ll_statahead_info *sai, struct ll_sa_entry *entry)
-{
-	struct ptlrpc_thread *thread = &sai->sai_thread;
-	struct ll_sb_info    *sbi    = ll_i2sbi(sai->sai_inode);
-	int		   hit;
-
-	if (entry != NULL && entry->se_stat == SA_ENTRY_SUCC)
-		hit = 1;
-	else
-		hit = 0;
-
-	ll_sa_entry_fini(sai, entry);
-	if (hit) {
-		sai->sai_hit++;
-		sai->sai_consecutive_miss = 0;
-		sai->sai_max = min(2 * sai->sai_max, sbi->ll_sa_max);
-	} else {
-		struct ll_inode_info *lli = ll_i2info(sai->sai_inode);
-
-		sai->sai_miss++;
-		sai->sai_consecutive_miss++;
-		if (sa_low_hit(sai) && thread_is_running(thread)) {
-			atomic_inc(&sbi->ll_sa_wrong);
-			CDEBUG(D_READA, "Statahead for dir " DFID " hit ratio too low: hit/miss %llu/%llu, sent/replied %llu/%llu, stopping statahead thread\n",
-			       PFID(&lli->lli_fid), sai->sai_hit,
-			       sai->sai_miss, sai->sai_sent,
-			       sai->sai_replied);
-			spin_lock(&lli->lli_sa_lock);
-			if (!thread_is_stopped(thread))
-				thread_set_flags(thread, SVC_STOPPING);
-			spin_unlock(&lli->lli_sa_lock);
-		}
-	}
-
-	if (!thread_is_stopped(thread))
-		wake_up(&thread->t_ctl_waitq);
-}
-
-/**
- * Start statahead thread if this is the first dir entry.
- * Otherwise if a thread is started already, wait it until it is ahead of me.
- * \retval 1       -- find entry with lock in cache, the caller needs to do
- *		    nothing.
- * \retval 0       -- find entry in cache, but without lock, the caller needs
- *		    refresh from MDS.
- * \retval others  -- the caller need to process as non-statahead.
- */
-int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
-		       int only_unplug)
-{
-	struct ll_inode_info     *lli   = ll_i2info(dir);
-	struct ll_statahead_info *sai   = lli->lli_sai;
-	struct dentry	    *parent;
-	struct ll_sa_entry       *entry;
-	struct ptlrpc_thread     *thread;
-	struct l_wait_info	lwi   = { 0 };
-	int		       rc    = 0;
-	struct ll_inode_info     *plli;
-
-	LASSERT(lli->lli_opendir_pid == current_pid());
-
-	if (sai) {
-		thread = &sai->sai_thread;
-		if (unlikely(thread_is_stopped(thread) &&
-			     list_empty(&sai->sai_entries_stated))) {
-			/* to release resource */
-			ll_stop_statahead(dir, lli->lli_opendir_key);
-			return -EAGAIN;
-		}
-
-		if ((*dentryp)->d_name.name[0] == '.') {
-			if (sai->sai_ls_all ||
-			    sai->sai_miss_hidden >= sai->sai_skip_hidden) {
-				/*
-				 * Hidden dentry is the first one, or statahead
-				 * thread does not skip so many hidden dentries
-				 * before "sai_ls_all" enabled as below.
-				 */
-			} else {
-				if (!sai->sai_ls_all)
-					/*
-					 * It maybe because hidden dentry is not
-					 * the first one, "sai_ls_all" was not
-					 * set, then "ls -al" missed. Enable
-					 * "sai_ls_all" for such case.
-					 */
-					sai->sai_ls_all = 1;
-
-				/*
-				 * Such "getattr" has been skipped before
-				 * "sai_ls_all" enabled as above.
-				 */
-				sai->sai_miss_hidden++;
-				return -EAGAIN;
-			}
-		}
-
-		entry = ll_sa_entry_get_byname(sai, &(*dentryp)->d_name);
-		if (entry == NULL || only_unplug) {
-			ll_sai_unplug(sai, entry);
-			return entry ? 1 : -EAGAIN;
-		}
-
-		if (!ll_sa_entry_stated(entry)) {
-			sai->sai_index_wait = entry->se_index;
-			lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(30), NULL,
-					       LWI_ON_SIGNAL_NOOP, NULL);
-			rc = l_wait_event(sai->sai_waitq,
-					  ll_sa_entry_stated(entry) ||
-					  thread_is_stopped(thread),
-					  &lwi);
-			if (rc < 0) {
-				ll_sai_unplug(sai, entry);
-				return -EAGAIN;
-			}
-		}
-
-		if (entry->se_stat == SA_ENTRY_SUCC &&
-		    entry->se_inode != NULL) {
-			struct inode *inode = entry->se_inode;
-			struct lookup_intent it = { .it_op = IT_GETATTR,
-						    .d.lustre.it_lock_handle =
-						     entry->se_handle };
-			__u64 bits;
-
-			rc = md_revalidate_lock(ll_i2mdexp(dir), &it,
-						ll_inode2fid(inode), &bits);
-			if (rc == 1) {
-				if (d_inode(*dentryp) == NULL) {
-					struct dentry *alias;
-
-					alias = ll_splice_alias(inode,
-								   *dentryp);
-					if (IS_ERR(alias)) {
-						ll_sai_unplug(sai, entry);
-						return PTR_ERR(alias);
-					}
-					*dentryp = alias;
-				} else if (d_inode(*dentryp) != inode) {
-					/* revalidate, but inode is recreated */
-					CDEBUG(D_READA,
-					      "stale dentry %pd inode %lu/%u, statahead inode %lu/%u\n",
-					      *dentryp,
-					      d_inode(*dentryp)->i_ino,
-					      d_inode(*dentryp)->i_generation,
-					      inode->i_ino,
-					      inode->i_generation);
-					ll_sai_unplug(sai, entry);
-					return -ESTALE;
-				} else {
-					iput(inode);
-				}
-				entry->se_inode = NULL;
-
-				if ((bits & MDS_INODELOCK_LOOKUP) &&
-				    d_lustre_invalid(*dentryp))
-					d_lustre_revalidate(*dentryp);
-				ll_intent_release(&it);
-			}
-		}
-
-		ll_sai_unplug(sai, entry);
-		return rc;
-	}
-
-	/* I am the "lli_opendir_pid" owner, only me can set "lli_sai". */
-	rc = is_first_dirent(dir, *dentryp);
-	if (rc == LS_NONE_FIRST_DE) {
-		/* It is not "ls -{a}l" operation, no need statahead for it. */
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	sai = ll_sai_alloc();
-	if (sai == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	sai->sai_ls_all = (rc == LS_FIRST_DOT_DE);
-	sai->sai_inode = igrab(dir);
-	if (unlikely(sai->sai_inode == NULL)) {
-		CWARN("Do not start stat ahead on dying inode "DFID"\n",
-		      PFID(&lli->lli_fid));
-		rc = -ESTALE;
-		goto out;
-	}
-
-	/* get parent reference count here, and put it in ll_statahead_thread */
-	parent = dget((*dentryp)->d_parent);
-	if (unlikely(sai->sai_inode != d_inode(parent))) {
-		struct ll_inode_info *nlli = ll_i2info(d_inode(parent));
-
-		CWARN("Race condition, someone changed %pd just now: old parent "DFID", new parent "DFID"\n",
-		      *dentryp,
-		      PFID(&lli->lli_fid), PFID(&nlli->lli_fid));
-		dput(parent);
-		iput(sai->sai_inode);
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	CDEBUG(D_READA, "start statahead thread: sai %p, parent %pd\n",
-	       sai, parent);
-
-	/* The sai buffer already has one reference taken at allocation time,
-	 * but as soon as we expose the sai by attaching it to the lli that
-	 * default reference can be dropped by another thread calling
-	 * ll_stop_statahead. We need to take a local reference to protect
-	 * the sai buffer while we intend to access it. */
-	ll_sai_get(sai);
-	lli->lli_sai = sai;
-
-	plli = ll_i2info(d_inode(parent));
-	rc = PTR_ERR(kthread_run(ll_statahead_thread, parent,
-				 "ll_sa_%u", plli->lli_opendir_pid));
-	thread = &sai->sai_thread;
-	if (IS_ERR_VALUE(rc)) {
-		CERROR("can't start ll_sa thread, rc: %d\n", rc);
-		dput(parent);
-		lli->lli_opendir_key = NULL;
-		thread_set_flags(thread, SVC_STOPPED);
-		thread_set_flags(&sai->sai_agl_thread, SVC_STOPPED);
-		/* Drop both our own local reference and the default
-		 * reference from allocation time. */
-		ll_sai_put(sai);
-		ll_sai_put(sai);
-		LASSERT(lli->lli_sai == NULL);
-		return -EAGAIN;
-	}
-
-	l_wait_event(thread->t_ctl_waitq,
-		     thread_is_running(thread) || thread_is_stopped(thread),
-		     &lwi);
-	ll_sai_put(sai);
-
-	/*
-	 * We don't stat-ahead for the first dirent since we are already in
-	 * lookup.
-	 */
-	return -EAGAIN;
-
-out:
-	kfree(sai);
-	spin_lock(&lli->lli_sa_lock);
-	lli->lli_opendir_key = NULL;
-	lli->lli_opendir_pid = 0;
-	spin_unlock(&lli->lli_sa_lock);
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c
deleted file mode 100644
index e4020ce8cb7b..000000000000
--- a/drivers/staging/lustre/lustre/llite/super25.c
+++ /dev/null
@@ -1,231 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include "../include/lustre_lite.h"
-#include "../include/lustre_ha.h"
-#include "../include/lustre_dlm.h"
-#include <linux/init.h>
-#include <linux/fs.h>
-#include "../include/lprocfs_status.h"
-#include "llite_internal.h"
-
-static struct kmem_cache *ll_inode_cachep;
-
-static struct inode *ll_alloc_inode(struct super_block *sb)
-{
-	struct ll_inode_info *lli;
-	ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_ALLOC_INODE, 1);
-	OBD_SLAB_ALLOC_PTR_GFP(lli, ll_inode_cachep, GFP_NOFS);
-	if (lli == NULL)
-		return NULL;
-
-	inode_init_once(&lli->lli_vfs_inode);
-	return &lli->lli_vfs_inode;
-}
-
-static void ll_inode_destroy_callback(struct rcu_head *head)
-{
-	struct inode *inode = container_of(head, struct inode, i_rcu);
-	struct ll_inode_info *ptr = ll_i2info(inode);
-	OBD_SLAB_FREE_PTR(ptr, ll_inode_cachep);
-}
-
-static void ll_destroy_inode(struct inode *inode)
-{
-	call_rcu(&inode->i_rcu, ll_inode_destroy_callback);
-}
-
-/* exported operations */
-struct super_operations lustre_super_operations = {
-	.alloc_inode   = ll_alloc_inode,
-	.destroy_inode = ll_destroy_inode,
-	.evict_inode   = ll_delete_inode,
-	.put_super     = ll_put_super,
-	.statfs	= ll_statfs,
-	.umount_begin  = ll_umount_begin,
-	.remount_fs    = ll_remount_fs,
-	.show_options  = ll_show_options,
-};
-MODULE_ALIAS_FS("lustre");
-
-void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg));
-
-static int __init init_lustre_lite(void)
-{
-	lnet_process_id_t lnet_id;
-	struct timeval tv;
-	int i, rc, seed[2];
-
-	CLASSERT(sizeof(LUSTRE_VOLATILE_HDR) == LUSTRE_VOLATILE_HDR_LEN + 1);
-
-	/* print an address of _any_ initialized kernel symbol from this
-	 * module, to allow debugging with gdb that doesn't support data
-	 * symbols from modules.*/
-	CDEBUG(D_INFO, "Lustre client module (%p).\n",
-	       &lustre_super_operations);
-
-	rc = -ENOMEM;
-	ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
-					    sizeof(struct ll_inode_info),
-					    0, SLAB_HWCACHE_ALIGN, NULL);
-	if (ll_inode_cachep == NULL)
-		goto out_cache;
-
-	ll_file_data_slab = kmem_cache_create("ll_file_data",
-						 sizeof(struct ll_file_data), 0,
-						 SLAB_HWCACHE_ALIGN, NULL);
-	if (ll_file_data_slab == NULL)
-		goto out_cache;
-
-	ll_remote_perm_cachep = kmem_cache_create("ll_remote_perm_cache",
-						  sizeof(struct ll_remote_perm),
-						      0, 0, NULL);
-	if (ll_remote_perm_cachep == NULL)
-		goto out_cache;
-
-	ll_rmtperm_hash_cachep = kmem_cache_create("ll_rmtperm_hash_cache",
-						   REMOTE_PERM_HASHSIZE *
-						   sizeof(struct list_head),
-						   0, 0, NULL);
-	if (ll_rmtperm_hash_cachep == NULL)
-		goto out_cache;
-
-	llite_root = debugfs_create_dir("llite", debugfs_lustre_root);
-	if (IS_ERR_OR_NULL(llite_root)) {
-		rc = llite_root ? PTR_ERR(llite_root) : -ENOMEM;
-		llite_root = NULL;
-		goto out_cache;
-	}
-
-	llite_kset = kset_create_and_add("llite", NULL, lustre_kobj);
-	if (!llite_kset) {
-		rc = -ENOMEM;
-		goto out_debugfs;
-	}
-
-	cfs_get_random_bytes(seed, sizeof(seed));
-
-	/* Nodes with small feet have little entropy. The NID for this
-	 * node gives the most entropy in the low bits */
-	for (i = 0;; i++) {
-		if (LNetGetId(i, &lnet_id) == -ENOENT)
-			break;
-
-		if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND)
-			seed[0] ^= LNET_NIDADDR(lnet_id.nid);
-	}
-
-	do_gettimeofday(&tv);
-	cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
-	setup_timer(&ll_capa_timer, ll_capa_timer_callback, 0);
-	rc = ll_capa_thread_start();
-	if (rc != 0)
-		goto out_sysfs;
-
-	rc = vvp_global_init();
-	if (rc != 0)
-		goto out_capa;
-
-	rc = ll_xattr_init();
-	if (rc != 0)
-		goto out_vvp;
-
-	lustre_register_client_fill_super(ll_fill_super);
-	lustre_register_kill_super_cb(ll_kill_super);
-	lustre_register_client_process_config(ll_process_config);
-
-	return 0;
-
-out_vvp:
-	vvp_global_fini();
-out_capa:
-	del_timer(&ll_capa_timer);
-	ll_capa_thread_stop();
-out_sysfs:
-	kset_unregister(llite_kset);
-out_debugfs:
-	debugfs_remove(llite_root);
-out_cache:
-	if (ll_inode_cachep != NULL)
-		kmem_cache_destroy(ll_inode_cachep);
-
-	if (ll_file_data_slab != NULL)
-		kmem_cache_destroy(ll_file_data_slab);
-
-	if (ll_remote_perm_cachep != NULL)
-		kmem_cache_destroy(ll_remote_perm_cachep);
-
-	if (ll_rmtperm_hash_cachep != NULL)
-		kmem_cache_destroy(ll_rmtperm_hash_cachep);
-
-	return rc;
-}
-
-static void __exit exit_lustre_lite(void)
-{
-	lustre_register_client_fill_super(NULL);
-	lustre_register_kill_super_cb(NULL);
-	lustre_register_client_process_config(NULL);
-
-	debugfs_remove(llite_root);
-	kset_unregister(llite_kset);
-
-	ll_xattr_fini();
-	vvp_global_fini();
-	del_timer(&ll_capa_timer);
-	ll_capa_thread_stop();
-	LASSERTF(capa_count[CAPA_SITE_CLIENT] == 0,
-		 "client remaining capa count %d\n",
-		 capa_count[CAPA_SITE_CLIENT]);
-
-	kmem_cache_destroy(ll_inode_cachep);
-	kmem_cache_destroy(ll_rmtperm_hash_cachep);
-
-	kmem_cache_destroy(ll_remote_perm_cachep);
-
-	kmem_cache_destroy(ll_file_data_slab);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Lite Client File System");
-MODULE_LICENSE("GPL");
-
-module_init(init_lustre_lite);
-module_exit(exit_lustre_lite);
diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c
deleted file mode 100644
index 69b203651905..000000000000
--- a/drivers/staging/lustre/lustre/llite/symlink.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/stat.h>
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-
-static int ll_readlink_internal(struct inode *inode,
-				struct ptlrpc_request **request, char **symname)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	int rc, symlen = i_size_read(inode) + 1;
-	struct mdt_body *body;
-	struct md_op_data *op_data;
-
-	*request = NULL;
-
-	if (lli->lli_symlink_name) {
-		int print_limit = min_t(int, PAGE_SIZE - 128, symlen);
-
-		*symname = lli->lli_symlink_name;
-		/* If the total CDEBUG() size is larger than a page, it
-		 * will print a warning to the console, avoid this by
-		 * printing just the last part of the symlink. */
-		CDEBUG(D_INODE, "using cached symlink %s%.*s, len = %d\n",
-		       print_limit < symlen ? "..." : "", print_limit,
-		       (*symname) + symlen - print_limit, symlen);
-		return 0;
-	}
-
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, symlen,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data))
-		return PTR_ERR(op_data);
-
-	op_data->op_valid = OBD_MD_LINKNAME;
-	rc = md_getattr(sbi->ll_md_exp, op_data, request);
-	ll_finish_md_op_data(op_data);
-	if (rc) {
-		if (rc != -ENOENT)
-			CERROR("inode %lu: rc = %d\n", inode->i_ino, rc);
-		goto failed;
-	}
-
-	body = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
-	if ((body->valid & OBD_MD_LINKNAME) == 0) {
-		CERROR("OBD_MD_LINKNAME not set on reply\n");
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	LASSERT(symlen != 0);
-	if (body->eadatasize != symlen) {
-		CERROR("inode %lu: symlink length %d not expected %d\n",
-			inode->i_ino, body->eadatasize - 1, symlen - 1);
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	*symname = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_MD);
-	if (*symname == NULL ||
-	    strnlen(*symname, symlen) != symlen - 1) {
-		/* not full/NULL terminated */
-		CERROR("inode %lu: symlink not NULL terminated string of length %d\n",
-		       inode->i_ino, symlen - 1);
-		rc = -EPROTO;
-		goto failed;
-	}
-
-	lli->lli_symlink_name = kzalloc(symlen, GFP_NOFS);
-	/* do not return an error if we cannot cache the symlink locally */
-	if (lli->lli_symlink_name) {
-		memcpy(lli->lli_symlink_name, *symname, symlen);
-		*symname = lli->lli_symlink_name;
-	}
-	return 0;
-
-failed:
-	return rc;
-}
-
-static const char *ll_follow_link(struct dentry *dentry, void **cookie)
-{
-	struct inode *inode = d_inode(dentry);
-	struct ptlrpc_request *request = NULL;
-	int rc;
-	char *symname = NULL;
-
-	CDEBUG(D_VFSTRACE, "VFS Op\n");
-	ll_inode_size_lock(inode);
-	rc = ll_readlink_internal(inode, &request, &symname);
-	ll_inode_size_unlock(inode);
-	if (rc) {
-		ptlrpc_req_finished(request);
-		return ERR_PTR(rc);
-	}
-
-	/* symname may contain a pointer to the request message buffer,
-	 * we delay request releasing until ll_put_link then.
-	 */
-	*cookie = request;
-	return symname;
-}
-
-static void ll_put_link(struct inode *unused, void *cookie)
-{
-	ptlrpc_req_finished(cookie);
-}
-
-struct inode_operations ll_fast_symlink_inode_operations = {
-	.readlink	= generic_readlink,
-	.setattr	= ll_setattr,
-	.follow_link	= ll_follow_link,
-	.put_link	= ll_put_link,
-	.getattr	= ll_getattr,
-	.permission	= ll_inode_permission,
-	.setxattr	= ll_setxattr,
-	.getxattr	= ll_getxattr,
-	.listxattr	= ll_listxattr,
-	.removexattr	= ll_removexattr,
-};
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
deleted file mode 100644
index b8f6a8779fd3..000000000000
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ /dev/null
@@ -1,548 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * cl_device and cl_device_type implementation for VVP layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-
-#include "../include/obd.h"
-#include "../include/lustre_lite.h"
-#include "llite_internal.h"
-#include "vvp_internal.h"
-
-/*****************************************************************************
- *
- * Vvp device and device type functions.
- *
- */
-
-/*
- * vvp_ prefix stands for "Vfs Vm Posix". It corresponds to historical
- * "llite_" (var. "ll_") prefix.
- */
-
-static struct kmem_cache *vvp_thread_kmem;
-static struct kmem_cache *vvp_session_kmem;
-static struct lu_kmem_descr vvp_caches[] = {
-	{
-		.ckd_cache = &vvp_thread_kmem,
-		.ckd_name  = "vvp_thread_kmem",
-		.ckd_size  = sizeof(struct vvp_thread_info),
-	},
-	{
-		.ckd_cache = &vvp_session_kmem,
-		.ckd_name  = "vvp_session_kmem",
-		.ckd_size  = sizeof(struct vvp_session)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-static void *vvp_key_init(const struct lu_context *ctx,
-			  struct lu_context_key *key)
-{
-	struct vvp_thread_info *info;
-
-	OBD_SLAB_ALLOC_PTR_GFP(info, vvp_thread_kmem, GFP_NOFS);
-	if (info == NULL)
-		info = ERR_PTR(-ENOMEM);
-	return info;
-}
-
-static void vvp_key_fini(const struct lu_context *ctx,
-			 struct lu_context_key *key, void *data)
-{
-	struct vvp_thread_info *info = data;
-
-	OBD_SLAB_FREE_PTR(info, vvp_thread_kmem);
-}
-
-static void *vvp_session_key_init(const struct lu_context *ctx,
-				  struct lu_context_key *key)
-{
-	struct vvp_session *session;
-
-	OBD_SLAB_ALLOC_PTR_GFP(session, vvp_session_kmem, GFP_NOFS);
-	if (session == NULL)
-		session = ERR_PTR(-ENOMEM);
-	return session;
-}
-
-static void vvp_session_key_fini(const struct lu_context *ctx,
-				 struct lu_context_key *key, void *data)
-{
-	struct vvp_session *session = data;
-
-	OBD_SLAB_FREE_PTR(session, vvp_session_kmem);
-}
-
-
-struct lu_context_key vvp_key = {
-	.lct_tags = LCT_CL_THREAD,
-	.lct_init = vvp_key_init,
-	.lct_fini = vvp_key_fini
-};
-
-struct lu_context_key vvp_session_key = {
-	.lct_tags = LCT_SESSION,
-	.lct_init = vvp_session_key_init,
-	.lct_fini = vvp_session_key_fini
-};
-
-/* type constructor/destructor: vvp_type_{init,fini,start,stop}(). */
-LU_TYPE_INIT_FINI(vvp, &ccc_key, &ccc_session_key, &vvp_key, &vvp_session_key);
-
-static const struct lu_device_operations vvp_lu_ops = {
-	.ldo_object_alloc      = vvp_object_alloc
-};
-
-static const struct cl_device_operations vvp_cl_ops = {
-	.cdo_req_init = ccc_req_init
-};
-
-static struct lu_device *vvp_device_alloc(const struct lu_env *env,
-					  struct lu_device_type *t,
-					  struct lustre_cfg *cfg)
-{
-	return ccc_device_alloc(env, t, cfg, &vvp_lu_ops, &vvp_cl_ops);
-}
-
-static const struct lu_device_type_operations vvp_device_type_ops = {
-	.ldto_init = vvp_type_init,
-	.ldto_fini = vvp_type_fini,
-
-	.ldto_start = vvp_type_start,
-	.ldto_stop  = vvp_type_stop,
-
-	.ldto_device_alloc = vvp_device_alloc,
-	.ldto_device_free  = ccc_device_free,
-	.ldto_device_init  = ccc_device_init,
-	.ldto_device_fini  = ccc_device_fini
-};
-
-struct lu_device_type vvp_device_type = {
-	.ldt_tags     = LU_DEVICE_CL,
-	.ldt_name     = LUSTRE_VVP_NAME,
-	.ldt_ops      = &vvp_device_type_ops,
-	.ldt_ctx_tags = LCT_CL_THREAD
-};
-
-/**
- * A mutex serializing calls to vvp_inode_fini() under extreme memory
- * pressure, when environments cannot be allocated.
- */
-int vvp_global_init(void)
-{
-	int result;
-
-	result = lu_kmem_init(vvp_caches);
-	if (result == 0) {
-		result = ccc_global_init(&vvp_device_type);
-		if (result != 0)
-			lu_kmem_fini(vvp_caches);
-	}
-	return result;
-}
-
-void vvp_global_fini(void)
-{
-	ccc_global_fini(&vvp_device_type);
-	lu_kmem_fini(vvp_caches);
-}
-
-
-/*****************************************************************************
- *
- * mirror obd-devices into cl devices.
- *
- */
-
-int cl_sb_init(struct super_block *sb)
-{
-	struct ll_sb_info *sbi;
-	struct cl_device  *cl;
-	struct lu_env     *env;
-	int rc = 0;
-	int refcheck;
-
-	sbi  = ll_s2sbi(sb);
-	env = cl_env_get(&refcheck);
-	if (!IS_ERR(env)) {
-		cl = cl_type_setup(env, NULL, &vvp_device_type,
-				   sbi->ll_dt_exp->exp_obd->obd_lu_dev);
-		if (!IS_ERR(cl)) {
-			cl2ccc_dev(cl)->cdv_sb = sb;
-			sbi->ll_cl = cl;
-			sbi->ll_site = cl2lu_dev(cl)->ld_site;
-		}
-		cl_env_put(env, &refcheck);
-	} else
-		rc = PTR_ERR(env);
-	return rc;
-}
-
-int cl_sb_fini(struct super_block *sb)
-{
-	struct ll_sb_info *sbi;
-	struct lu_env     *env;
-	struct cl_device  *cld;
-	int		refcheck;
-	int		result;
-
-	sbi = ll_s2sbi(sb);
-	env = cl_env_get(&refcheck);
-	if (!IS_ERR(env)) {
-		cld = sbi->ll_cl;
-
-		if (cld != NULL) {
-			cl_stack_fini(env, cld);
-			sbi->ll_cl = NULL;
-			sbi->ll_site = NULL;
-		}
-		cl_env_put(env, &refcheck);
-		result = 0;
-	} else {
-		CERROR("Cannot cleanup cl-stack due to memory shortage.\n");
-		result = PTR_ERR(env);
-	}
-	/*
-	 * If mount failed (sbi->ll_cl == NULL), and this there are no other
-	 * mounts, stop device types manually (this usually happens
-	 * automatically when last device is destroyed).
-	 */
-	lu_types_stop();
-	return result;
-}
-
-/****************************************************************************
- *
- * debugfs/lustre/llite/$MNT/dump_page_cache
- *
- ****************************************************************************/
-
-/*
- * To represent contents of a page cache as a byte stream, following
- * information if encoded in 64bit offset:
- *
- *       - file hash bucket in lu_site::ls_hash[]       28bits
- *
- *       - how far file is from bucket head	      4bits
- *
- *       - page index				   32bits
- *
- * First two data identify a file in the cache uniquely.
- */
-
-#define PGC_OBJ_SHIFT (32 + 4)
-#define PGC_DEPTH_SHIFT (32)
-
-struct vvp_pgcache_id {
-	unsigned		 vpi_bucket;
-	unsigned		 vpi_depth;
-	uint32_t		 vpi_index;
-
-	unsigned		 vpi_curdep;
-	struct lu_object_header *vpi_obj;
-};
-
-static void vvp_pgcache_id_unpack(loff_t pos, struct vvp_pgcache_id *id)
-{
-	CLASSERT(sizeof(pos) == sizeof(__u64));
-
-	id->vpi_index  = pos & 0xffffffff;
-	id->vpi_depth  = (pos >> PGC_DEPTH_SHIFT) & 0xf;
-	id->vpi_bucket = (unsigned long long)pos >> PGC_OBJ_SHIFT;
-}
-
-static loff_t vvp_pgcache_id_pack(struct vvp_pgcache_id *id)
-{
-	return
-		((__u64)id->vpi_index) |
-		((__u64)id->vpi_depth  << PGC_DEPTH_SHIFT) |
-		((__u64)id->vpi_bucket << PGC_OBJ_SHIFT);
-}
-
-static int vvp_pgcache_obj_get(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-			       struct hlist_node *hnode, void *data)
-{
-	struct vvp_pgcache_id   *id  = data;
-	struct lu_object_header *hdr = cfs_hash_object(hs, hnode);
-
-	if (id->vpi_curdep-- > 0)
-		return 0; /* continue */
-
-	if (lu_object_is_dying(hdr))
-		return 1;
-
-	cfs_hash_get(hs, hnode);
-	id->vpi_obj = hdr;
-	return 1;
-}
-
-static struct cl_object *vvp_pgcache_obj(const struct lu_env *env,
-					 struct lu_device *dev,
-					 struct vvp_pgcache_id *id)
-{
-	LASSERT(lu_device_is_cl(dev));
-
-	id->vpi_depth &= 0xf;
-	id->vpi_obj    = NULL;
-	id->vpi_curdep = id->vpi_depth;
-
-	cfs_hash_hlist_for_each(dev->ld_site->ls_obj_hash, id->vpi_bucket,
-				vvp_pgcache_obj_get, id);
-	if (id->vpi_obj != NULL) {
-		struct lu_object *lu_obj;
-
-		lu_obj = lu_object_locate(id->vpi_obj, dev->ld_type);
-		if (lu_obj != NULL) {
-			lu_object_ref_add(lu_obj, "dump", current);
-			return lu2cl(lu_obj);
-		}
-		lu_object_put(env, lu_object_top(id->vpi_obj));
-
-	} else if (id->vpi_curdep > 0) {
-		id->vpi_depth = 0xf;
-	}
-	return NULL;
-}
-
-static loff_t vvp_pgcache_find(const struct lu_env *env,
-			       struct lu_device *dev, loff_t pos)
-{
-	struct cl_object     *clob;
-	struct lu_site       *site;
-	struct vvp_pgcache_id id;
-
-	site = dev->ld_site;
-	vvp_pgcache_id_unpack(pos, &id);
-
-	while (1) {
-		if (id.vpi_bucket >= CFS_HASH_NHLIST(site->ls_obj_hash))
-			return ~0ULL;
-		clob = vvp_pgcache_obj(env, dev, &id);
-		if (clob != NULL) {
-			struct cl_object_header *hdr;
-			int		      nr;
-			struct cl_page	  *pg;
-
-			/* got an object. Find next page. */
-			hdr = cl_object_header(clob);
-
-			spin_lock(&hdr->coh_page_guard);
-			nr = radix_tree_gang_lookup(&hdr->coh_tree,
-						    (void **)&pg,
-						    id.vpi_index, 1);
-			if (nr > 0) {
-				id.vpi_index = pg->cp_index;
-				/* Cant support over 16T file */
-				nr = !(pg->cp_index > 0xffffffff);
-			}
-			spin_unlock(&hdr->coh_page_guard);
-
-			lu_object_ref_del(&clob->co_lu, "dump", current);
-			cl_object_put(env, clob);
-			if (nr > 0)
-				return vvp_pgcache_id_pack(&id);
-		}
-		/* to the next object. */
-		++id.vpi_depth;
-		id.vpi_depth &= 0xf;
-		if (id.vpi_depth == 0 && ++id.vpi_bucket == 0)
-			return ~0ULL;
-		id.vpi_index = 0;
-	}
-}
-
-#define seq_page_flag(seq, page, flag, has_flags) do {		  \
-	if (test_bit(PG_##flag, &(page)->flags)) {		  \
-		seq_printf(seq, "%s"#flag, has_flags ? "|" : "");       \
-		has_flags = 1;					  \
-	}							       \
-} while (0)
-
-static void vvp_pgcache_page_show(const struct lu_env *env,
-				  struct seq_file *seq, struct cl_page *page)
-{
-	struct ccc_page *cpg;
-	struct page      *vmpage;
-	int	      has_flags;
-
-	cpg = cl2ccc_page(cl_page_at(page, &vvp_device_type));
-	vmpage = cpg->cpg_page;
-	seq_printf(seq, " %5i | %p %p %s %s %s %s | %p %lu/%u(%p) %lu %u [",
-		   0 /* gen */,
-		   cpg, page,
-		   "none",
-		   cpg->cpg_write_queued ? "wq" : "- ",
-		   cpg->cpg_defer_uptodate ? "du" : "- ",
-		   PageWriteback(vmpage) ? "wb" : "-",
-		   vmpage, vmpage->mapping->host->i_ino,
-		   vmpage->mapping->host->i_generation,
-		   vmpage->mapping->host, vmpage->index,
-		   page_count(vmpage));
-	has_flags = 0;
-	seq_page_flag(seq, vmpage, locked, has_flags);
-	seq_page_flag(seq, vmpage, error, has_flags);
-	seq_page_flag(seq, vmpage, referenced, has_flags);
-	seq_page_flag(seq, vmpage, uptodate, has_flags);
-	seq_page_flag(seq, vmpage, dirty, has_flags);
-	seq_page_flag(seq, vmpage, writeback, has_flags);
-	seq_printf(seq, "%s]\n", has_flags ? "" : "-");
-}
-
-static int vvp_pgcache_show(struct seq_file *f, void *v)
-{
-	loff_t		   pos;
-	struct ll_sb_info       *sbi;
-	struct cl_object	*clob;
-	struct lu_env	   *env;
-	struct cl_page	  *page;
-	struct cl_object_header *hdr;
-	struct vvp_pgcache_id    id;
-	int		      refcheck;
-	int		      result;
-
-	env = cl_env_get(&refcheck);
-	if (!IS_ERR(env)) {
-		pos = *(loff_t *) v;
-		vvp_pgcache_id_unpack(pos, &id);
-		sbi = f->private;
-		clob = vvp_pgcache_obj(env, &sbi->ll_cl->cd_lu_dev, &id);
-		if (clob != NULL) {
-			hdr = cl_object_header(clob);
-
-			spin_lock(&hdr->coh_page_guard);
-			page = cl_page_lookup(hdr, id.vpi_index);
-			spin_unlock(&hdr->coh_page_guard);
-
-			seq_printf(f, "%8x@"DFID": ",
-				   id.vpi_index, PFID(&hdr->coh_lu.loh_fid));
-			if (page != NULL) {
-				vvp_pgcache_page_show(env, f, page);
-				cl_page_put(env, page);
-			} else
-				seq_puts(f, "missing\n");
-			lu_object_ref_del(&clob->co_lu, "dump", current);
-			cl_object_put(env, clob);
-		} else
-			seq_printf(f, "%llx missing\n", pos);
-		cl_env_put(env, &refcheck);
-		result = 0;
-	} else
-		result = PTR_ERR(env);
-	return result;
-}
-
-static void *vvp_pgcache_start(struct seq_file *f, loff_t *pos)
-{
-	struct ll_sb_info *sbi;
-	struct lu_env     *env;
-	int		refcheck;
-
-	sbi = f->private;
-
-	env = cl_env_get(&refcheck);
-	if (!IS_ERR(env)) {
-		sbi = f->private;
-		if (sbi->ll_site->ls_obj_hash->hs_cur_bits > 64 - PGC_OBJ_SHIFT)
-			pos = ERR_PTR(-EFBIG);
-		else {
-			*pos = vvp_pgcache_find(env, &sbi->ll_cl->cd_lu_dev,
-						*pos);
-			if (*pos == ~0ULL)
-				pos = NULL;
-		}
-		cl_env_put(env, &refcheck);
-	}
-	return pos;
-}
-
-static void *vvp_pgcache_next(struct seq_file *f, void *v, loff_t *pos)
-{
-	struct ll_sb_info *sbi;
-	struct lu_env     *env;
-	int		refcheck;
-
-	env = cl_env_get(&refcheck);
-	if (!IS_ERR(env)) {
-		sbi = f->private;
-		*pos = vvp_pgcache_find(env, &sbi->ll_cl->cd_lu_dev, *pos + 1);
-		if (*pos == ~0ULL)
-			pos = NULL;
-		cl_env_put(env, &refcheck);
-	}
-	return pos;
-}
-
-static void vvp_pgcache_stop(struct seq_file *f, void *v)
-{
-	/* Nothing to do */
-}
-
-static const struct seq_operations vvp_pgcache_ops = {
-	.start = vvp_pgcache_start,
-	.next  = vvp_pgcache_next,
-	.stop  = vvp_pgcache_stop,
-	.show  = vvp_pgcache_show
-};
-
-static int vvp_dump_pgcache_seq_open(struct inode *inode, struct file *filp)
-{
-	struct seq_file *seq;
-	int rc;
-
-	rc = seq_open(filp, &vvp_pgcache_ops);
-	if (rc)
-		return rc;
-
-	seq = filp->private_data;
-	seq->private = inode->i_private;
-
-	return 0;
-}
-
-const struct file_operations vvp_dump_pgcache_file_ops = {
-	.owner   = THIS_MODULE,
-	.open    = vvp_dump_pgcache_seq_open,
-	.read    = seq_read,
-	.llseek	 = seq_lseek,
-	.release = seq_release,
-};
diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h
deleted file mode 100644
index 2162bf6c08a7..000000000000
--- a/drivers/staging/lustre/lustre/llite/vvp_internal.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Internal definitions for VVP layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#ifndef VVP_INTERNAL_H
-#define VVP_INTERNAL_H
-
-
-#include "../include/cl_object.h"
-#include "llite_internal.h"
-
-int	       vvp_io_init     (const struct lu_env *env,
-				   struct cl_object *obj, struct cl_io *io);
-int	       vvp_lock_init   (const struct lu_env *env,
-				   struct cl_object *obj, struct cl_lock *lock,
-				   const struct cl_io *io);
-int		  vvp_page_init   (const struct lu_env *env,
-				   struct cl_object *obj,
-				   struct cl_page *page, struct page *vmpage);
-struct lu_object *vvp_object_alloc(const struct lu_env *env,
-				   const struct lu_object_header *hdr,
-				   struct lu_device *dev);
-
-struct ccc_object *cl_inode2ccc(struct inode *inode);
-
-extern const struct file_operations vvp_dump_pgcache_file_ops;
-
-#endif /* VVP_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
deleted file mode 100644
index a659962e09c8..000000000000
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ /dev/null
@@ -1,1208 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_io for VVP layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-
-#include "../include/obd.h"
-#include "../include/lustre_lite.h"
-
-#include "vvp_internal.h"
-
-static struct vvp_io *cl2vvp_io(const struct lu_env *env,
-				const struct cl_io_slice *slice);
-
-/**
- * True, if \a io is a normal io, False for splice_{read,write}
- */
-int cl_is_normalio(const struct lu_env *env, const struct cl_io *io)
-{
-	struct vvp_io *vio = vvp_env_io(env);
-
-	LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE);
-
-	return vio->cui_io_subtype == IO_NORMAL;
-}
-
-/**
- * For swapping layout. The file's layout may have changed.
- * To avoid populating pages to a wrong stripe, we have to verify the
- * correctness of layout. It works because swapping layout processes
- * have to acquire group lock.
- */
-static bool can_populate_pages(const struct lu_env *env, struct cl_io *io,
-				struct inode *inode)
-{
-	struct ll_inode_info	*lli = ll_i2info(inode);
-	struct ccc_io		*cio = ccc_env_io(env);
-	bool rc = true;
-
-	switch (io->ci_type) {
-	case CIT_READ:
-	case CIT_WRITE:
-		/* don't need lock here to check lli_layout_gen as we have held
-		 * extent lock and GROUP lock has to hold to swap layout */
-		if (ll_layout_version_get(lli) != cio->cui_layout_gen) {
-			io->ci_need_restart = 1;
-			/* this will return application a short read/write */
-			io->ci_continue = 0;
-			rc = false;
-		}
-	case CIT_FAULT:
-		/* fault is okay because we've already had a page. */
-	default:
-		break;
-	}
-
-	return rc;
-}
-
-/*****************************************************************************
- *
- * io operations.
- *
- */
-
-static int vvp_io_fault_iter_init(const struct lu_env *env,
-				  const struct cl_io_slice *ios)
-{
-	struct vvp_io *vio   = cl2vvp_io(env, ios);
-	struct inode  *inode = ccc_object_inode(ios->cis_obj);
-
-	LASSERT(inode ==
-		file_inode(cl2ccc_io(env, ios)->cui_fd->fd_file));
-	vio->u.fault.ft_mtime = LTIME_S(inode->i_mtime);
-	return 0;
-}
-
-static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	struct cl_io     *io  = ios->cis_io;
-	struct cl_object *obj = io->ci_obj;
-	struct ccc_io    *cio = cl2ccc_io(env, ios);
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
-	CDEBUG(D_VFSTRACE, DFID
-	       " ignore/verify layout %d/%d, layout version %d restore needed %d\n",
-	       PFID(lu_object_fid(&obj->co_lu)),
-	       io->ci_ignore_layout, io->ci_verify_layout,
-	       cio->cui_layout_gen, io->ci_restore_needed);
-
-	if (io->ci_restore_needed == 1) {
-		int	rc;
-
-		/* file was detected release, we need to restore it
-		 * before finishing the io
-		 */
-		rc = ll_layout_restore(ccc_object_inode(obj));
-		/* if restore registration failed, no restart,
-		 * we will return -ENODATA */
-		/* The layout will change after restore, so we need to
-		 * block on layout lock hold by the MDT
-		 * as MDT will not send new layout in lvb (see LU-3124)
-		 * we have to explicitly fetch it, all this will be done
-		 * by ll_layout_refresh()
-		 */
-		if (rc == 0) {
-			io->ci_restore_needed = 0;
-			io->ci_need_restart = 1;
-			io->ci_verify_layout = 1;
-		} else {
-			io->ci_restore_needed = 1;
-			io->ci_need_restart = 0;
-			io->ci_verify_layout = 0;
-			io->ci_result = rc;
-		}
-	}
-
-	if (!io->ci_ignore_layout && io->ci_verify_layout) {
-		__u32 gen = 0;
-
-		/* check layout version */
-		ll_layout_refresh(ccc_object_inode(obj), &gen);
-		io->ci_need_restart = cio->cui_layout_gen != gen;
-		if (io->ci_need_restart) {
-			CDEBUG(D_VFSTRACE,
-			       DFID" layout changed from %d to %d.\n",
-			       PFID(lu_object_fid(&obj->co_lu)),
-			       cio->cui_layout_gen, gen);
-			/* today successful restore is the only possible
-			 * case */
-			/* restore was done, clear restoring state */
-			ll_i2info(ccc_object_inode(obj))->lli_flags &=
-				~LLIF_FILE_RESTORING;
-		}
-	}
-}
-
-static void vvp_io_fault_fini(const struct lu_env *env,
-			      const struct cl_io_slice *ios)
-{
-	struct cl_io   *io   = ios->cis_io;
-	struct cl_page *page = io->u.ci_fault.ft_page;
-
-	CLOBINVRNT(env, io->ci_obj, ccc_object_invariant(io->ci_obj));
-
-	if (page != NULL) {
-		lu_ref_del(&page->cp_reference, "fault", io);
-		cl_page_put(env, page);
-		io->u.ci_fault.ft_page = NULL;
-	}
-	vvp_io_fini(env, ios);
-}
-
-static enum cl_lock_mode vvp_mode_from_vma(struct vm_area_struct *vma)
-{
-	/*
-	 * we only want to hold PW locks if the mmap() can generate
-	 * writes back to the file and that only happens in shared
-	 * writable vmas
-	 */
-	if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_WRITE))
-		return CLM_WRITE;
-	return CLM_READ;
-}
-
-static int vvp_mmap_locks(const struct lu_env *env,
-			  struct ccc_io *vio, struct cl_io *io)
-{
-	struct ccc_thread_info *cti = ccc_env_info(env);
-	struct mm_struct       *mm = current->mm;
-	struct vm_area_struct  *vma;
-	struct cl_lock_descr   *descr = &cti->cti_descr;
-	ldlm_policy_data_t      policy;
-	unsigned long	   addr;
-	ssize_t		 count;
-	int		     result;
-	struct iov_iter i;
-	struct iovec iov;
-
-	LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE);
-
-	if (!cl_is_normalio(env, io))
-		return 0;
-
-	if (vio->cui_iter == NULL) /* nfs or loop back device write */
-		return 0;
-
-	/* No MM (e.g. NFS)? No vmas too. */
-	if (mm == NULL)
-		return 0;
-
-	iov_for_each(iov, i, *(vio->cui_iter)) {
-		addr = (unsigned long)iov.iov_base;
-		count = iov.iov_len;
-		if (count == 0)
-			continue;
-
-		count += addr & (~CFS_PAGE_MASK);
-		addr &= CFS_PAGE_MASK;
-
-		down_read(&mm->mmap_sem);
-		while ((vma = our_vma(mm, addr, count)) != NULL) {
-			struct inode *inode = file_inode(vma->vm_file);
-			int flags = CEF_MUST;
-
-			if (ll_file_nolock(vma->vm_file)) {
-				/*
-				 * For no lock case, a lockless lock will be
-				 * generated.
-				 */
-				flags = CEF_NEVER;
-			}
-
-			/*
-			 * XXX: Required lock mode can be weakened: CIT_WRITE
-			 * io only ever reads user level buffer, and CIT_READ
-			 * only writes on it.
-			 */
-			policy_from_vma(&policy, vma, addr, count);
-			descr->cld_mode = vvp_mode_from_vma(vma);
-			descr->cld_obj = ll_i2info(inode)->lli_clob;
-			descr->cld_start = cl_index(descr->cld_obj,
-						    policy.l_extent.start);
-			descr->cld_end = cl_index(descr->cld_obj,
-						  policy.l_extent.end);
-			descr->cld_enq_flags = flags;
-			result = cl_io_lock_alloc_add(env, io, descr);
-
-			CDEBUG(D_VFSTRACE, "lock: %d: [%lu, %lu]\n",
-			       descr->cld_mode, descr->cld_start,
-			       descr->cld_end);
-
-			if (result < 0) {
-				up_read(&mm->mmap_sem);
-				return result;
-			}
-
-			if (vma->vm_end - addr >= count)
-				break;
-
-			count -= vma->vm_end - addr;
-			addr = vma->vm_end;
-		}
-		up_read(&mm->mmap_sem);
-	}
-	return 0;
-}
-
-static int vvp_io_rw_lock(const struct lu_env *env, struct cl_io *io,
-			  enum cl_lock_mode mode, loff_t start, loff_t end)
-{
-	struct ccc_io *cio = ccc_env_io(env);
-	int result;
-	int ast_flags = 0;
-
-	LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE);
-
-	ccc_io_update_iov(env, cio, io);
-
-	if (io->u.ci_rw.crw_nonblock)
-		ast_flags |= CEF_NONBLOCK;
-	result = vvp_mmap_locks(env, cio, io);
-	if (result == 0)
-		result = ccc_io_one_lock(env, io, ast_flags, mode, start, end);
-	return result;
-}
-
-static int vvp_io_read_lock(const struct lu_env *env,
-			    const struct cl_io_slice *ios)
-{
-	struct cl_io	 *io = ios->cis_io;
-	struct cl_io_rw_common *rd = &io->u.ci_rd.rd;
-	int result;
-
-	result = vvp_io_rw_lock(env, io, CLM_READ, rd->crw_pos,
-				rd->crw_pos + rd->crw_count - 1);
-
-	return result;
-}
-
-static int vvp_io_fault_lock(const struct lu_env *env,
-			     const struct cl_io_slice *ios)
-{
-	struct cl_io *io   = ios->cis_io;
-	struct vvp_io *vio = cl2vvp_io(env, ios);
-	/*
-	 * XXX LDLM_FL_CBPENDING
-	 */
-	return ccc_io_one_lock_index
-		(env, io, 0, vvp_mode_from_vma(vio->u.fault.ft_vma),
-		 io->u.ci_fault.ft_index, io->u.ci_fault.ft_index);
-}
-
-static int vvp_io_write_lock(const struct lu_env *env,
-			     const struct cl_io_slice *ios)
-{
-	struct cl_io *io = ios->cis_io;
-	loff_t start;
-	loff_t end;
-
-	if (io->u.ci_wr.wr_append) {
-		start = 0;
-		end   = OBD_OBJECT_EOF;
-	} else {
-		start = io->u.ci_wr.wr.crw_pos;
-		end   = start + io->u.ci_wr.wr.crw_count - 1;
-	}
-	return vvp_io_rw_lock(env, io, CLM_WRITE, start, end);
-}
-
-static int vvp_io_setattr_iter_init(const struct lu_env *env,
-				    const struct cl_io_slice *ios)
-{
-	return 0;
-}
-
-/**
- * Implementation of cl_io_operations::cio_lock() method for CIT_SETATTR io.
- *
- * Handles "lockless io" mode when extent locking is done by server.
- */
-static int vvp_io_setattr_lock(const struct lu_env *env,
-			       const struct cl_io_slice *ios)
-{
-	struct ccc_io *cio = ccc_env_io(env);
-	struct cl_io  *io  = ios->cis_io;
-	__u64 new_size;
-	__u32 enqflags = 0;
-
-	if (cl_io_is_trunc(io)) {
-		new_size = io->u.ci_setattr.sa_attr.lvb_size;
-		if (new_size == 0)
-			enqflags = CEF_DISCARD_DATA;
-	} else {
-		if ((io->u.ci_setattr.sa_attr.lvb_mtime >=
-		     io->u.ci_setattr.sa_attr.lvb_ctime) ||
-		    (io->u.ci_setattr.sa_attr.lvb_atime >=
-		     io->u.ci_setattr.sa_attr.lvb_ctime))
-			return 0;
-		new_size = 0;
-	}
-	cio->u.setattr.cui_local_lock = SETATTR_EXTENT_LOCK;
-	return ccc_io_one_lock(env, io, enqflags, CLM_WRITE,
-			       new_size, OBD_OBJECT_EOF);
-}
-
-static int vvp_do_vmtruncate(struct inode *inode, size_t size)
-{
-	int     result;
-	/*
-	 * Only ll_inode_size_lock is taken at this level.
-	 */
-	ll_inode_size_lock(inode);
-	result = inode_newsize_ok(inode, size);
-	if (result < 0) {
-		ll_inode_size_unlock(inode);
-		return result;
-	}
-	truncate_setsize(inode, size);
-	ll_inode_size_unlock(inode);
-	return result;
-}
-
-static int vvp_io_setattr_trunc(const struct lu_env *env,
-				const struct cl_io_slice *ios,
-				struct inode *inode, loff_t size)
-{
-	inode_dio_wait(inode);
-	return 0;
-}
-
-static int vvp_io_setattr_time(const struct lu_env *env,
-			       const struct cl_io_slice *ios)
-{
-	struct cl_io       *io    = ios->cis_io;
-	struct cl_object   *obj   = io->ci_obj;
-	struct cl_attr     *attr  = ccc_env_thread_attr(env);
-	int result;
-	unsigned valid = CAT_CTIME;
-
-	cl_object_attr_lock(obj);
-	attr->cat_ctime = io->u.ci_setattr.sa_attr.lvb_ctime;
-	if (io->u.ci_setattr.sa_valid & ATTR_ATIME_SET) {
-		attr->cat_atime = io->u.ci_setattr.sa_attr.lvb_atime;
-		valid |= CAT_ATIME;
-	}
-	if (io->u.ci_setattr.sa_valid & ATTR_MTIME_SET) {
-		attr->cat_mtime = io->u.ci_setattr.sa_attr.lvb_mtime;
-		valid |= CAT_MTIME;
-	}
-	result = cl_object_attr_set(env, obj, attr, valid);
-	cl_object_attr_unlock(obj);
-
-	return result;
-}
-
-static int vvp_io_setattr_start(const struct lu_env *env,
-				const struct cl_io_slice *ios)
-{
-	struct cl_io	*io    = ios->cis_io;
-	struct inode	*inode = ccc_object_inode(io->ci_obj);
-	int result = 0;
-
-	mutex_lock(&inode->i_mutex);
-	if (cl_io_is_trunc(io))
-		result = vvp_io_setattr_trunc(env, ios, inode,
-					io->u.ci_setattr.sa_attr.lvb_size);
-	if (result == 0)
-		result = vvp_io_setattr_time(env, ios);
-	return result;
-}
-
-static void vvp_io_setattr_end(const struct lu_env *env,
-			       const struct cl_io_slice *ios)
-{
-	struct cl_io *io    = ios->cis_io;
-	struct inode *inode = ccc_object_inode(io->ci_obj);
-
-	if (cl_io_is_trunc(io))
-		/* Truncate in memory pages - they must be clean pages
-		 * because osc has already notified to destroy osc_extents. */
-		vvp_do_vmtruncate(inode, io->u.ci_setattr.sa_attr.lvb_size);
-
-	mutex_unlock(&inode->i_mutex);
-}
-
-static void vvp_io_setattr_fini(const struct lu_env *env,
-				const struct cl_io_slice *ios)
-{
-	vvp_io_fini(env, ios);
-}
-
-static int vvp_io_read_start(const struct lu_env *env,
-			     const struct cl_io_slice *ios)
-{
-	struct vvp_io     *vio   = cl2vvp_io(env, ios);
-	struct ccc_io     *cio   = cl2ccc_io(env, ios);
-	struct cl_io      *io    = ios->cis_io;
-	struct cl_object  *obj   = io->ci_obj;
-	struct inode      *inode = ccc_object_inode(obj);
-	struct ll_ra_read *bead  = &vio->cui_bead;
-	struct file       *file  = cio->cui_fd->fd_file;
-
-	int     result;
-	loff_t  pos = io->u.ci_rd.rd.crw_pos;
-	long    cnt = io->u.ci_rd.rd.crw_count;
-	long    tot = cio->cui_tot_count;
-	int     exceed = 0;
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
-	CDEBUG(D_VFSTRACE, "read: -> [%lli, %lli)\n", pos, pos + cnt);
-
-	if (!can_populate_pages(env, io, inode))
-		return 0;
-
-	result = ccc_prep_size(env, obj, io, pos, tot, &exceed);
-	if (result != 0)
-		return result;
-	else if (exceed != 0)
-		goto out;
-
-	LU_OBJECT_HEADER(D_INODE, env, &obj->co_lu,
-			"Read ino %lu, %lu bytes, offset %lld, size %llu\n",
-			inode->i_ino, cnt, pos, i_size_read(inode));
-
-	/* turn off the kernel's read-ahead */
-	cio->cui_fd->fd_file->f_ra.ra_pages = 0;
-
-	/* initialize read-ahead window once per syscall */
-	if (!vio->cui_ra_window_set) {
-		vio->cui_ra_window_set = 1;
-		bead->lrr_start = cl_index(obj, pos);
-		/*
-		 * XXX: explicit PAGE_CACHE_SIZE
-		 */
-		bead->lrr_count = cl_index(obj, tot + PAGE_CACHE_SIZE - 1);
-		ll_ra_read_in(file, bead);
-	}
-
-	/* BUG: 5972 */
-	file_accessed(file);
-	switch (vio->cui_io_subtype) {
-	case IO_NORMAL:
-		LASSERT(cio->cui_iocb->ki_pos == pos);
-		result = generic_file_read_iter(cio->cui_iocb, cio->cui_iter);
-		break;
-	case IO_SPLICE:
-		result = generic_file_splice_read(file, &pos,
-				vio->u.splice.cui_pipe, cnt,
-				vio->u.splice.cui_flags);
-		/* LU-1109: do splice read stripe by stripe otherwise if it
-		 * may make nfsd stuck if this read occupied all internal pipe
-		 * buffers. */
-		io->ci_continue = 0;
-		break;
-	default:
-		CERROR("Wrong IO type %u\n", vio->cui_io_subtype);
-		LBUG();
-	}
-
-out:
-	if (result >= 0) {
-		if (result < cnt)
-			io->ci_continue = 0;
-		io->ci_nob += result;
-		ll_rw_stats_tally(ll_i2sbi(inode), current->pid,
-				  cio->cui_fd, pos, result, READ);
-		result = 0;
-	}
-	return result;
-}
-
-static void vvp_io_read_fini(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	struct vvp_io *vio = cl2vvp_io(env, ios);
-	struct ccc_io *cio = cl2ccc_io(env, ios);
-
-	if (vio->cui_ra_window_set)
-		ll_ra_read_ex(cio->cui_fd->fd_file, &vio->cui_bead);
-
-	vvp_io_fini(env, ios);
-}
-
-static int vvp_io_write_start(const struct lu_env *env,
-			      const struct cl_io_slice *ios)
-{
-	struct ccc_io      *cio   = cl2ccc_io(env, ios);
-	struct cl_io       *io    = ios->cis_io;
-	struct cl_object   *obj   = io->ci_obj;
-	struct inode       *inode = ccc_object_inode(obj);
-	ssize_t result = 0;
-	loff_t pos = io->u.ci_wr.wr.crw_pos;
-	size_t cnt = io->u.ci_wr.wr.crw_count;
-
-	if (!can_populate_pages(env, io, inode))
-		return 0;
-
-	if (cl_io_is_append(io)) {
-		/*
-		 * PARALLEL IO This has to be changed for parallel IO doing
-		 * out-of-order writes.
-		 */
-		pos = io->u.ci_wr.wr.crw_pos = i_size_read(inode);
-		cio->cui_iocb->ki_pos = pos;
-	} else {
-		LASSERT(cio->cui_iocb->ki_pos == pos);
-	}
-
-	CDEBUG(D_VFSTRACE, "write: [%lli, %lli)\n", pos, pos + (long long)cnt);
-
-	if (cio->cui_iter == NULL) /* from a temp io in ll_cl_init(). */
-		result = 0;
-	else
-		result = generic_file_write_iter(cio->cui_iocb, cio->cui_iter);
-
-	if (result > 0) {
-		if (result < cnt)
-			io->ci_continue = 0;
-		io->ci_nob += result;
-		ll_rw_stats_tally(ll_i2sbi(inode), current->pid,
-				  cio->cui_fd, pos, result, WRITE);
-		result = 0;
-	}
-	return result;
-}
-
-static int vvp_io_kernel_fault(struct vvp_fault_io *cfio)
-{
-	struct vm_fault *vmf = cfio->fault.ft_vmf;
-
-	cfio->fault.ft_flags = filemap_fault(cfio->ft_vma, vmf);
-	cfio->fault.ft_flags_valid = 1;
-
-	if (vmf->page) {
-		CDEBUG(D_PAGE,
-		       "page %p map %p index %lu flags %lx count %u priv %0lx: got addr %p type NOPAGE\n",
-		       vmf->page, vmf->page->mapping, vmf->page->index,
-		       (long)vmf->page->flags, page_count(vmf->page),
-		       page_private(vmf->page), vmf->virtual_address);
-		if (unlikely(!(cfio->fault.ft_flags & VM_FAULT_LOCKED))) {
-			lock_page(vmf->page);
-			cfio->fault.ft_flags |= VM_FAULT_LOCKED;
-		}
-
-		cfio->ft_vmpage = vmf->page;
-		return 0;
-	}
-
-	if (cfio->fault.ft_flags & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV)) {
-		CDEBUG(D_PAGE, "got addr %p - SIGBUS\n", vmf->virtual_address);
-		return -EFAULT;
-	}
-
-	if (cfio->fault.ft_flags & VM_FAULT_OOM) {
-		CDEBUG(D_PAGE, "got addr %p - OOM\n", vmf->virtual_address);
-		return -ENOMEM;
-	}
-
-	if (cfio->fault.ft_flags & VM_FAULT_RETRY)
-		return -EAGAIN;
-
-	CERROR("Unknown error in page fault %d!\n", cfio->fault.ft_flags);
-	return -EINVAL;
-}
-
-
-static int vvp_io_fault_start(const struct lu_env *env,
-			      const struct cl_io_slice *ios)
-{
-	struct vvp_io       *vio     = cl2vvp_io(env, ios);
-	struct cl_io	*io      = ios->cis_io;
-	struct cl_object    *obj     = io->ci_obj;
-	struct inode	*inode   = ccc_object_inode(obj);
-	struct cl_fault_io  *fio     = &io->u.ci_fault;
-	struct vvp_fault_io *cfio    = &vio->u.fault;
-	loff_t	       offset;
-	int		  result  = 0;
-	struct page	  *vmpage  = NULL;
-	struct cl_page      *page;
-	loff_t	       size;
-	pgoff_t	      last; /* last page in a file data region */
-
-	if (fio->ft_executable &&
-	    LTIME_S(inode->i_mtime) != vio->u.fault.ft_mtime)
-		CWARN("binary "DFID
-		      " changed while waiting for the page fault lock\n",
-		      PFID(lu_object_fid(&obj->co_lu)));
-
-	/* offset of the last byte on the page */
-	offset = cl_offset(obj, fio->ft_index + 1) - 1;
-	LASSERT(cl_index(obj, offset) == fio->ft_index);
-	result = ccc_prep_size(env, obj, io, 0, offset + 1, NULL);
-	if (result != 0)
-		return result;
-
-	/* must return locked page */
-	if (fio->ft_mkwrite) {
-		LASSERT(cfio->ft_vmpage != NULL);
-		lock_page(cfio->ft_vmpage);
-	} else {
-		result = vvp_io_kernel_fault(cfio);
-		if (result != 0)
-			return result;
-	}
-
-	vmpage = cfio->ft_vmpage;
-	LASSERT(PageLocked(vmpage));
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_LLITE_FAULT_TRUNC_RACE))
-		ll_invalidate_page(vmpage);
-
-	size = i_size_read(inode);
-	/* Though we have already held a cl_lock upon this page, but
-	 * it still can be truncated locally. */
-	if (unlikely((vmpage->mapping != inode->i_mapping) ||
-		     (page_offset(vmpage) > size))) {
-		CDEBUG(D_PAGE, "llite: fault and truncate race happened!\n");
-
-		/* return +1 to stop cl_io_loop() and ll_fault() will catch
-		 * and retry. */
-		result = +1;
-		goto out;
-	}
-
-
-	if (fio->ft_mkwrite) {
-		pgoff_t last_index;
-		/*
-		 * Capture the size while holding the lli_trunc_sem from above
-		 * we want to make sure that we complete the mkwrite action
-		 * while holding this lock. We need to make sure that we are
-		 * not past the end of the file.
-		 */
-		last_index = cl_index(obj, size - 1);
-		if (last_index < fio->ft_index) {
-			CDEBUG(D_PAGE,
-			       "llite: mkwrite and truncate race happened: %p: 0x%lx 0x%lx\n",
-			       vmpage->mapping, fio->ft_index, last_index);
-			/*
-			 * We need to return if we are
-			 * passed the end of the file. This will propagate
-			 * up the call stack to ll_page_mkwrite where
-			 * we will return VM_FAULT_NOPAGE. Any non-negative
-			 * value returned here will be silently
-			 * converted to 0. If the vmpage->mapping is null
-			 * the error code would be converted back to ENODATA
-			 * in ll_page_mkwrite0. Thus we return -ENODATA
-			 * to handle both cases
-			 */
-			result = -ENODATA;
-			goto out;
-		}
-	}
-
-	page = cl_page_find(env, obj, fio->ft_index, vmpage, CPT_CACHEABLE);
-	if (IS_ERR(page)) {
-		result = PTR_ERR(page);
-		goto out;
-	}
-
-	/* if page is going to be written, we should add this page into cache
-	 * earlier. */
-	if (fio->ft_mkwrite) {
-		wait_on_page_writeback(vmpage);
-		if (set_page_dirty(vmpage)) {
-			struct ccc_page *cp;
-
-			/* vvp_page_assume() calls wait_on_page_writeback(). */
-			cl_page_assume(env, io, page);
-
-			cp = cl2ccc_page(cl_page_at(page, &vvp_device_type));
-			vvp_write_pending(cl2ccc(obj), cp);
-
-			/* Do not set Dirty bit here so that in case IO is
-			 * started before the page is really made dirty, we
-			 * still have chance to detect it. */
-			result = cl_page_cache_add(env, io, page, CRT_WRITE);
-			LASSERT(cl_page_is_owned(page, io));
-
-			vmpage = NULL;
-			if (result < 0) {
-				cl_page_unmap(env, io, page);
-				cl_page_discard(env, io, page);
-				cl_page_disown(env, io, page);
-
-				cl_page_put(env, page);
-
-				/* we're in big trouble, what can we do now? */
-				if (result == -EDQUOT)
-					result = -ENOSPC;
-				goto out;
-			} else
-				cl_page_disown(env, io, page);
-		}
-	}
-
-	last = cl_index(obj, size - 1);
-	/*
-	 * The ft_index is only used in the case of
-	 * a mkwrite action. We need to check
-	 * our assertions are correct, since
-	 * we should have caught this above
-	 */
-	LASSERT(!fio->ft_mkwrite || fio->ft_index <= last);
-	if (fio->ft_index == last)
-		/*
-		 * Last page is mapped partially.
-		 */
-		fio->ft_nob = size - cl_offset(obj, fio->ft_index);
-	else
-		fio->ft_nob = cl_page_size(obj);
-
-	lu_ref_add(&page->cp_reference, "fault", io);
-	fio->ft_page = page;
-
-out:
-	/* return unlocked vmpage to avoid deadlocking */
-	if (vmpage != NULL)
-		unlock_page(vmpage);
-	cfio->fault.ft_flags &= ~VM_FAULT_LOCKED;
-	return result;
-}
-
-static int vvp_io_fsync_start(const struct lu_env *env,
-			      const struct cl_io_slice *ios)
-{
-	/* we should mark TOWRITE bit to each dirty page in radix tree to
-	 * verify pages have been written, but this is difficult because of
-	 * race. */
-	return 0;
-}
-
-static int vvp_io_read_page(const struct lu_env *env,
-			    const struct cl_io_slice *ios,
-			    const struct cl_page_slice *slice)
-{
-	struct cl_io	      *io     = ios->cis_io;
-	struct cl_object	  *obj    = slice->cpl_obj;
-	struct ccc_page	   *cp     = cl2ccc_page(slice);
-	struct cl_page	    *page   = slice->cpl_page;
-	struct inode	      *inode  = ccc_object_inode(obj);
-	struct ll_sb_info	 *sbi    = ll_i2sbi(inode);
-	struct ll_file_data       *fd     = cl2ccc_io(env, ios)->cui_fd;
-	struct ll_readahead_state *ras    = &fd->fd_ras;
-	struct page		*vmpage = cp->cpg_page;
-	struct cl_2queue	  *queue  = &io->ci_queue;
-	int rc;
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-	LASSERT(slice->cpl_obj == obj);
-
-	if (sbi->ll_ra_info.ra_max_pages_per_file &&
-	    sbi->ll_ra_info.ra_max_pages)
-		ras_update(sbi, inode, ras, page->cp_index,
-			   cp->cpg_defer_uptodate);
-
-	/* Sanity check whether the page is protected by a lock. */
-	rc = cl_page_is_under_lock(env, io, page);
-	if (rc != -EBUSY) {
-		CL_PAGE_HEADER(D_WARNING, env, page, "%s: %d\n",
-			       rc == -ENODATA ? "without a lock" :
-			       "match failed", rc);
-		if (rc != -ENODATA)
-			return rc;
-	}
-
-	if (cp->cpg_defer_uptodate) {
-		cp->cpg_ra_used = 1;
-		cl_page_export(env, page, 1);
-	}
-	/*
-	 * Add page into the queue even when it is marked uptodate above.
-	 * this will unlock it automatically as part of cl_page_list_disown().
-	 */
-	cl_2queue_add(queue, page);
-	if (sbi->ll_ra_info.ra_max_pages_per_file &&
-	    sbi->ll_ra_info.ra_max_pages)
-		ll_readahead(env, io, ras,
-			     vmpage->mapping, &queue->c2_qin, fd->fd_flags);
-
-	return 0;
-}
-
-static int vvp_page_sync_io(const struct lu_env *env, struct cl_io *io,
-			    struct cl_page *page, struct ccc_page *cp,
-			    enum cl_req_type crt)
-{
-	struct cl_2queue  *queue;
-	int result;
-
-	LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE);
-
-	queue = &io->ci_queue;
-	cl_2queue_init_page(queue, page);
-
-	result = cl_io_submit_sync(env, io, crt, queue, 0);
-	LASSERT(cl_page_is_owned(page, io));
-
-	if (crt == CRT_READ)
-		/*
-		 * in CRT_WRITE case page is left locked even in case of
-		 * error.
-		 */
-		cl_page_list_disown(env, io, &queue->c2_qin);
-	cl_2queue_fini(env, queue);
-
-	return result;
-}
-
-/**
- * Prepare partially written-to page for a write.
- */
-static int vvp_io_prepare_partial(const struct lu_env *env, struct cl_io *io,
-				  struct cl_object *obj, struct cl_page *pg,
-				  struct ccc_page *cp,
-				  unsigned from, unsigned to)
-{
-	struct cl_attr *attr   = ccc_env_thread_attr(env);
-	loff_t	  offset = cl_offset(obj, pg->cp_index);
-	int	     result;
-
-	cl_object_attr_lock(obj);
-	result = cl_object_attr_get(env, obj, attr);
-	cl_object_attr_unlock(obj);
-	if (result == 0) {
-		/*
-		 * If are writing to a new page, no need to read old data.
-		 * The extent locking will have updated the KMS, and for our
-		 * purposes here we can treat it like i_size.
-		 */
-		if (attr->cat_kms <= offset) {
-			char *kaddr = kmap_atomic(cp->cpg_page);
-
-			memset(kaddr, 0, cl_page_size(obj));
-			kunmap_atomic(kaddr);
-		} else if (cp->cpg_defer_uptodate)
-			cp->cpg_ra_used = 1;
-		else
-			result = vvp_page_sync_io(env, io, pg, cp, CRT_READ);
-		/*
-		 * In older implementations, obdo_refresh_inode is called here
-		 * to update the inode because the write might modify the
-		 * object info at OST. However, this has been proven useless,
-		 * since LVB functions will be called when user space program
-		 * tries to retrieve inode attribute.  Also, see bug 15909 for
-		 * details. -jay
-		 */
-		if (result == 0)
-			cl_page_export(env, pg, 1);
-	}
-	return result;
-}
-
-static int vvp_io_prepare_write(const struct lu_env *env,
-				const struct cl_io_slice *ios,
-				const struct cl_page_slice *slice,
-				unsigned from, unsigned to)
-{
-	struct cl_object *obj    = slice->cpl_obj;
-	struct ccc_page  *cp     = cl2ccc_page(slice);
-	struct cl_page   *pg     = slice->cpl_page;
-	struct page       *vmpage = cp->cpg_page;
-
-	int result;
-
-	LINVRNT(cl_page_is_vmlocked(env, pg));
-	LASSERT(vmpage->mapping->host == ccc_object_inode(obj));
-
-	result = 0;
-
-	CL_PAGE_HEADER(D_PAGE, env, pg, "preparing: [%d, %d]\n", from, to);
-	if (!PageUptodate(vmpage)) {
-		/*
-		 * We're completely overwriting an existing page, so _don't_
-		 * set it up to date until commit_write
-		 */
-		if (from == 0 && to == PAGE_CACHE_SIZE) {
-			CL_PAGE_HEADER(D_PAGE, env, pg, "full page write\n");
-			POISON_PAGE(page, 0x11);
-		} else
-			result = vvp_io_prepare_partial(env, ios->cis_io, obj,
-							pg, cp, from, to);
-	} else
-		CL_PAGE_HEADER(D_PAGE, env, pg, "uptodate\n");
-	return result;
-}
-
-static int vvp_io_commit_write(const struct lu_env *env,
-			       const struct cl_io_slice *ios,
-			       const struct cl_page_slice *slice,
-			       unsigned from, unsigned to)
-{
-	struct cl_object  *obj    = slice->cpl_obj;
-	struct cl_io      *io     = ios->cis_io;
-	struct ccc_page   *cp     = cl2ccc_page(slice);
-	struct cl_page    *pg     = slice->cpl_page;
-	struct inode      *inode  = ccc_object_inode(obj);
-	struct ll_sb_info *sbi    = ll_i2sbi(inode);
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct page	*vmpage = cp->cpg_page;
-
-	int    result;
-	int    tallyop;
-	loff_t size;
-
-	LINVRNT(cl_page_is_vmlocked(env, pg));
-	LASSERT(vmpage->mapping->host == inode);
-
-	LU_OBJECT_HEADER(D_INODE, env, &obj->co_lu, "committing page write\n");
-	CL_PAGE_HEADER(D_PAGE, env, pg, "committing: [%d, %d]\n", from, to);
-
-	/*
-	 * queue a write for some time in the future the first time we
-	 * dirty the page.
-	 *
-	 * This is different from what other file systems do: they usually
-	 * just mark page (and some of its buffers) dirty and rely on
-	 * balance_dirty_pages() to start a write-back. Lustre wants write-back
-	 * to be started earlier for the following reasons:
-	 *
-	 *     (1) with a large number of clients we need to limit the amount
-	 *     of cached data on the clients a lot;
-	 *
-	 *     (2) large compute jobs generally want compute-only then io-only
-	 *     and the IO should complete as quickly as possible;
-	 *
-	 *     (3) IO is batched up to the RPC size and is async until the
-	 *     client max cache is hit
-	 *     (/proc/fs/lustre/osc/OSC.../max_dirty_mb)
-	 *
-	 */
-	if (!PageDirty(vmpage)) {
-		tallyop = LPROC_LL_DIRTY_MISSES;
-		result = cl_page_cache_add(env, io, pg, CRT_WRITE);
-		if (result == 0) {
-			/* page was added into cache successfully. */
-			set_page_dirty(vmpage);
-			vvp_write_pending(cl2ccc(obj), cp);
-		} else if (result == -EDQUOT) {
-			pgoff_t last_index = i_size_read(inode) >> PAGE_CACHE_SHIFT;
-			bool need_clip = true;
-
-			/*
-			 * Client ran out of disk space grant. Possible
-			 * strategies are:
-			 *
-			 *     (a) do a sync write, renewing grant;
-			 *
-			 *     (b) stop writing on this stripe, switch to the
-			 *     next one.
-			 *
-			 * (b) is a part of "parallel io" design that is the
-			 * ultimate goal. (a) is what "old" client did, and
-			 * what the new code continues to do for the time
-			 * being.
-			 */
-			if (last_index > pg->cp_index) {
-				to = PAGE_CACHE_SIZE;
-				need_clip = false;
-			} else if (last_index == pg->cp_index) {
-				int size_to = i_size_read(inode) & ~CFS_PAGE_MASK;
-				if (to < size_to)
-					to = size_to;
-			}
-			if (need_clip)
-				cl_page_clip(env, pg, 0, to);
-			result = vvp_page_sync_io(env, io, pg, cp, CRT_WRITE);
-			if (result)
-				CERROR("Write page %lu of inode %p failed %d\n",
-				       pg->cp_index, inode, result);
-		}
-	} else {
-		tallyop = LPROC_LL_DIRTY_HITS;
-		result = 0;
-	}
-	ll_stats_ops_tally(sbi, tallyop, 1);
-
-	/* Inode should be marked DIRTY even if no new page was marked DIRTY
-	 * because page could have been not flushed between 2 modifications.
-	 * It is important the file is marked DIRTY as soon as the I/O is done
-	 * Indeed, when cache is flushed, file could be already closed and it
-	 * is too late to warn the MDT.
-	 * It is acceptable that file is marked DIRTY even if I/O is dropped
-	 * for some reasons before being flushed to OST.
-	 */
-	if (result == 0) {
-		spin_lock(&lli->lli_lock);
-		lli->lli_flags |= LLIF_DATA_MODIFIED;
-		spin_unlock(&lli->lli_lock);
-	}
-
-	size = cl_offset(obj, pg->cp_index) + to;
-
-	ll_inode_size_lock(inode);
-	if (result == 0) {
-		if (size > i_size_read(inode)) {
-			cl_isize_write_nolock(inode, size);
-			CDEBUG(D_VFSTRACE, DFID" updating i_size %lu\n",
-			       PFID(lu_object_fid(&obj->co_lu)),
-			       (unsigned long)size);
-		}
-		cl_page_export(env, pg, 1);
-	} else {
-		if (size > i_size_read(inode))
-			cl_page_discard(env, io, pg);
-	}
-	ll_inode_size_unlock(inode);
-	return result;
-}
-
-static const struct cl_io_operations vvp_io_ops = {
-	.op = {
-		[CIT_READ] = {
-			.cio_fini      = vvp_io_read_fini,
-			.cio_lock      = vvp_io_read_lock,
-			.cio_start     = vvp_io_read_start,
-			.cio_advance   = ccc_io_advance
-		},
-		[CIT_WRITE] = {
-			.cio_fini      = vvp_io_fini,
-			.cio_lock      = vvp_io_write_lock,
-			.cio_start     = vvp_io_write_start,
-			.cio_advance   = ccc_io_advance
-		},
-		[CIT_SETATTR] = {
-			.cio_fini       = vvp_io_setattr_fini,
-			.cio_iter_init  = vvp_io_setattr_iter_init,
-			.cio_lock       = vvp_io_setattr_lock,
-			.cio_start      = vvp_io_setattr_start,
-			.cio_end	= vvp_io_setattr_end
-		},
-		[CIT_FAULT] = {
-			.cio_fini      = vvp_io_fault_fini,
-			.cio_iter_init = vvp_io_fault_iter_init,
-			.cio_lock      = vvp_io_fault_lock,
-			.cio_start     = vvp_io_fault_start,
-			.cio_end       = ccc_io_end
-		},
-		[CIT_FSYNC] = {
-			.cio_start  = vvp_io_fsync_start,
-			.cio_fini   = vvp_io_fini
-		},
-		[CIT_MISC] = {
-			.cio_fini   = vvp_io_fini
-		}
-	},
-	.cio_read_page     = vvp_io_read_page,
-	.cio_prepare_write = vvp_io_prepare_write,
-	.cio_commit_write  = vvp_io_commit_write
-};
-
-int vvp_io_init(const struct lu_env *env, struct cl_object *obj,
-		struct cl_io *io)
-{
-	struct vvp_io      *vio   = vvp_env_io(env);
-	struct ccc_io      *cio   = ccc_env_io(env);
-	struct inode       *inode = ccc_object_inode(obj);
-	int		 result;
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
-	CDEBUG(D_VFSTRACE, DFID
-	       " ignore/verify layout %d/%d, layout version %d restore needed %d\n",
-	       PFID(lu_object_fid(&obj->co_lu)),
-	       io->ci_ignore_layout, io->ci_verify_layout,
-	       cio->cui_layout_gen, io->ci_restore_needed);
-
-	CL_IO_SLICE_CLEAN(cio, cui_cl);
-	cl_io_slice_add(io, &cio->cui_cl, obj, &vvp_io_ops);
-	vio->cui_ra_window_set = 0;
-	result = 0;
-	if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE) {
-		size_t count;
-		struct ll_inode_info *lli = ll_i2info(inode);
-
-		count = io->u.ci_rw.crw_count;
-		/* "If nbyte is 0, read() will return 0 and have no other
-		 *  results."  -- Single Unix Spec */
-		if (count == 0)
-			result = 1;
-		else
-			cio->cui_tot_count = count;
-
-		/* for read/write, we store the jobid in the inode, and
-		 * it'll be fetched by osc when building RPC.
-		 *
-		 * it's not accurate if the file is shared by different
-		 * jobs.
-		 */
-		lustre_get_jobid(lli->lli_jobid);
-	} else if (io->ci_type == CIT_SETATTR) {
-		if (!cl_io_is_trunc(io))
-			io->ci_lockreq = CILR_MANDATORY;
-	}
-
-	/* ignore layout change for generic CIT_MISC but not for glimpse.
-	 * io context for glimpse must set ci_verify_layout to true,
-	 * see cl_glimpse_size0() for details. */
-	if (io->ci_type == CIT_MISC && !io->ci_verify_layout)
-		io->ci_ignore_layout = 1;
-
-	/* Enqueue layout lock and get layout version. We need to do this
-	 * even for operations requiring to open file, such as read and write,
-	 * because it might not grant layout lock in IT_OPEN. */
-	if (result == 0 && !io->ci_ignore_layout) {
-		result = ll_layout_refresh(inode, &cio->cui_layout_gen);
-		if (result == -ENOENT)
-			/* If the inode on MDS has been removed, but the objects
-			 * on OSTs haven't been destroyed (async unlink), layout
-			 * fetch will return -ENOENT, we'd ignore this error
-			 * and continue with dirty flush. LU-3230. */
-			result = 0;
-		if (result < 0)
-			CERROR("%s: refresh file layout " DFID " error %d.\n",
-				ll_get_fsname(inode->i_sb, NULL, 0),
-				PFID(lu_object_fid(&obj->co_lu)), result);
-	}
-
-	return result;
-}
-
-static struct vvp_io *cl2vvp_io(const struct lu_env *env,
-				const struct cl_io_slice *slice)
-{
-	/* Calling just for assertion */
-	cl2ccc_io(env, slice);
-	return vvp_env_io(env);
-}
diff --git a/drivers/staging/lustre/lustre/llite/vvp_lock.c b/drivers/staging/lustre/lustre/llite/vvp_lock.c
deleted file mode 100644
index f354e82d4ae7..000000000000
--- a/drivers/staging/lustre/lustre/llite/vvp_lock.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_lock for VVP layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-
-#include "../include/obd.h"
-#include "../include/lustre_lite.h"
-
-#include "vvp_internal.h"
-
-/*****************************************************************************
- *
- * Vvp lock functions.
- *
- */
-
-/**
- * Estimates lock value for the purpose of managing the lock cache during
- * memory shortages.
- *
- * Locks for memory mapped files are almost infinitely precious, others are
- * junk. "Mapped locks" are heavy, but not infinitely heavy, so that they are
- * ordered within themselves by weights assigned from other layers.
- */
-static unsigned long vvp_lock_weigh(const struct lu_env *env,
-				    const struct cl_lock_slice *slice)
-{
-	struct ccc_object *cob = cl2ccc(slice->cls_obj);
-
-	return atomic_read(&cob->cob_mmap_cnt) > 0 ? ~0UL >> 2 : 0;
-}
-
-static const struct cl_lock_operations vvp_lock_ops = {
-	.clo_delete    = ccc_lock_delete,
-	.clo_fini      = ccc_lock_fini,
-	.clo_enqueue   = ccc_lock_enqueue,
-	.clo_wait      = ccc_lock_wait,
-	.clo_use       = ccc_lock_use,
-	.clo_unuse     = ccc_lock_unuse,
-	.clo_fits_into = ccc_lock_fits_into,
-	.clo_state     = ccc_lock_state,
-	.clo_weigh     = vvp_lock_weigh
-};
-
-int vvp_lock_init(const struct lu_env *env, struct cl_object *obj,
-		  struct cl_lock *lock, const struct cl_io *io)
-{
-	return ccc_lock_init(env, obj, lock, io, &vvp_lock_ops);
-}
diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c
deleted file mode 100644
index b6f6d4cb6e41..000000000000
--- a/drivers/staging/lustre/lustre/llite/vvp_object.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * cl_object implementation for VVP layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd.h"
-#include "../include/lustre_lite.h"
-
-#include "vvp_internal.h"
-
-/*****************************************************************************
- *
- * Object operations.
- *
- */
-
-static int vvp_object_print(const struct lu_env *env, void *cookie,
-			    lu_printer_t p, const struct lu_object *o)
-{
-	struct ccc_object    *obj   = lu2ccc(o);
-	struct inode	 *inode = obj->cob_inode;
-	struct ll_inode_info *lli;
-
-	(*p)(env, cookie, "(%s %d %d) inode: %p ",
-	     list_empty(&obj->cob_pending_list) ? "-" : "+",
-	     obj->cob_transient_pages, atomic_read(&obj->cob_mmap_cnt),
-	     inode);
-	if (inode) {
-		lli = ll_i2info(inode);
-		(*p)(env, cookie, "%lu/%u %o %u %d %p "DFID,
-		     inode->i_ino, inode->i_generation, inode->i_mode,
-		     inode->i_nlink, atomic_read(&inode->i_count),
-		     lli->lli_clob, PFID(&lli->lli_fid));
-	}
-	return 0;
-}
-
-static int vvp_attr_get(const struct lu_env *env, struct cl_object *obj,
-			struct cl_attr *attr)
-{
-	struct inode *inode = ccc_object_inode(obj);
-
-	/*
-	 * lov overwrites most of these fields in
-	 * lov_attr_get()->...lov_merge_lvb_kms(), except when inode
-	 * attributes are newer.
-	 */
-
-	attr->cat_size = i_size_read(inode);
-	attr->cat_mtime = LTIME_S(inode->i_mtime);
-	attr->cat_atime = LTIME_S(inode->i_atime);
-	attr->cat_ctime = LTIME_S(inode->i_ctime);
-	attr->cat_blocks = inode->i_blocks;
-	attr->cat_uid = from_kuid(&init_user_ns, inode->i_uid);
-	attr->cat_gid = from_kgid(&init_user_ns, inode->i_gid);
-	/* KMS is not known by this layer */
-	return 0; /* layers below have to fill in the rest */
-}
-
-static int vvp_attr_set(const struct lu_env *env, struct cl_object *obj,
-			const struct cl_attr *attr, unsigned valid)
-{
-	struct inode *inode = ccc_object_inode(obj);
-
-	if (valid & CAT_UID)
-		inode->i_uid = make_kuid(&init_user_ns, attr->cat_uid);
-	if (valid & CAT_GID)
-		inode->i_gid = make_kgid(&init_user_ns, attr->cat_gid);
-	if (valid & CAT_ATIME)
-		LTIME_S(inode->i_atime) = attr->cat_atime;
-	if (valid & CAT_MTIME)
-		LTIME_S(inode->i_mtime) = attr->cat_mtime;
-	if (valid & CAT_CTIME)
-		LTIME_S(inode->i_ctime) = attr->cat_ctime;
-	if (0 && valid & CAT_SIZE)
-		cl_isize_write_nolock(inode, attr->cat_size);
-	/* not currently necessary */
-	if (0 && valid & (CAT_UID|CAT_GID|CAT_SIZE))
-		mark_inode_dirty(inode);
-	return 0;
-}
-
-static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
-			const struct cl_object_conf *conf)
-{
-	struct ll_inode_info *lli = ll_i2info(conf->coc_inode);
-
-	if (conf->coc_opc == OBJECT_CONF_INVALIDATE) {
-		CDEBUG(D_VFSTRACE, DFID ": losing layout lock\n",
-		       PFID(&lli->lli_fid));
-
-		ll_layout_version_set(lli, LL_LAYOUT_GEN_NONE);
-
-		/* Clean up page mmap for this inode.
-		 * The reason for us to do this is that if the page has
-		 * already been installed into memory space, the process
-		 * can access it without interacting with lustre, so this
-		 * page may be stale due to layout change, and the process
-		 * will never be notified.
-		 * This operation is expensive but mmap processes have to pay
-		 * a price themselves. */
-		unmap_mapping_range(conf->coc_inode->i_mapping,
-				    0, OBD_OBJECT_EOF, 0);
-
-		return 0;
-	}
-
-	if (conf->coc_opc != OBJECT_CONF_SET)
-		return 0;
-
-	if (conf->u.coc_md != NULL && conf->u.coc_md->lsm != NULL) {
-		CDEBUG(D_VFSTRACE, DFID ": layout version change: %u -> %u\n",
-		       PFID(&lli->lli_fid), lli->lli_layout_gen,
-		       conf->u.coc_md->lsm->lsm_layout_gen);
-
-		lli->lli_has_smd = lsm_has_objects(conf->u.coc_md->lsm);
-		ll_layout_version_set(lli, conf->u.coc_md->lsm->lsm_layout_gen);
-	} else {
-		CDEBUG(D_VFSTRACE, DFID ": layout nuked: %u.\n",
-		       PFID(&lli->lli_fid), lli->lli_layout_gen);
-
-		lli->lli_has_smd = false;
-		ll_layout_version_set(lli, LL_LAYOUT_GEN_EMPTY);
-	}
-	return 0;
-}
-
-static const struct cl_object_operations vvp_ops = {
-	.coo_page_init = vvp_page_init,
-	.coo_lock_init = vvp_lock_init,
-	.coo_io_init   = vvp_io_init,
-	.coo_attr_get  = vvp_attr_get,
-	.coo_attr_set  = vvp_attr_set,
-	.coo_conf_set  = vvp_conf_set,
-	.coo_glimpse   = ccc_object_glimpse
-};
-
-static const struct lu_object_operations vvp_lu_obj_ops = {
-	.loo_object_init  = ccc_object_init,
-	.loo_object_free  = ccc_object_free,
-	.loo_object_print = vvp_object_print
-};
-
-struct ccc_object *cl_inode2ccc(struct inode *inode)
-{
-	struct cl_inode_info *lli = cl_i2info(inode);
-	struct cl_object     *obj = lli->lli_clob;
-	struct lu_object     *lu;
-
-	LASSERT(obj != NULL);
-	lu = lu_object_locate(obj->co_lu.lo_header, &vvp_device_type);
-	LASSERT(lu != NULL);
-	return lu2ccc(lu);
-}
-
-struct lu_object *vvp_object_alloc(const struct lu_env *env,
-				   const struct lu_object_header *hdr,
-				   struct lu_device *dev)
-{
-	return ccc_object_alloc(env, hdr, dev, &vvp_ops, &vvp_lu_obj_ops);
-}
diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c
deleted file mode 100644
index a3cf5ad20c60..000000000000
--- a/drivers/staging/lustre/lustre/llite/vvp_page.c
+++ /dev/null
@@ -1,558 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_page for VVP layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-
-#include "../include/obd.h"
-#include "../include/lustre_lite.h"
-
-#include "vvp_internal.h"
-
-/*****************************************************************************
- *
- * Page operations.
- *
- */
-
-static void vvp_page_fini_common(struct ccc_page *cp)
-{
-	struct page *vmpage = cp->cpg_page;
-
-	LASSERT(vmpage != NULL);
-	page_cache_release(vmpage);
-}
-
-static void vvp_page_fini(const struct lu_env *env,
-			  struct cl_page_slice *slice)
-{
-	struct ccc_page *cp = cl2ccc_page(slice);
-	struct page *vmpage  = cp->cpg_page;
-
-	/*
-	 * vmpage->private was already cleared when page was moved into
-	 * VPG_FREEING state.
-	 */
-	LASSERT((struct cl_page *)vmpage->private != slice->cpl_page);
-	vvp_page_fini_common(cp);
-}
-
-static int vvp_page_own(const struct lu_env *env,
-			const struct cl_page_slice *slice, struct cl_io *io,
-			int nonblock)
-{
-	struct ccc_page *vpg    = cl2ccc_page(slice);
-	struct page      *vmpage = vpg->cpg_page;
-
-	LASSERT(vmpage != NULL);
-	if (nonblock) {
-		if (!trylock_page(vmpage))
-			return -EAGAIN;
-
-		if (unlikely(PageWriteback(vmpage))) {
-			unlock_page(vmpage);
-			return -EAGAIN;
-		}
-
-		return 0;
-	}
-
-	lock_page(vmpage);
-	wait_on_page_writeback(vmpage);
-	return 0;
-}
-
-static void vvp_page_assume(const struct lu_env *env,
-			    const struct cl_page_slice *slice,
-			    struct cl_io *unused)
-{
-	struct page *vmpage = cl2vm_page(slice);
-
-	LASSERT(vmpage != NULL);
-	LASSERT(PageLocked(vmpage));
-	wait_on_page_writeback(vmpage);
-}
-
-static void vvp_page_unassume(const struct lu_env *env,
-			      const struct cl_page_slice *slice,
-			      struct cl_io *unused)
-{
-	struct page *vmpage = cl2vm_page(slice);
-
-	LASSERT(vmpage != NULL);
-	LASSERT(PageLocked(vmpage));
-}
-
-static void vvp_page_disown(const struct lu_env *env,
-			    const struct cl_page_slice *slice, struct cl_io *io)
-{
-	struct page *vmpage = cl2vm_page(slice);
-
-	LASSERT(vmpage != NULL);
-	LASSERT(PageLocked(vmpage));
-
-	unlock_page(cl2vm_page(slice));
-}
-
-static void vvp_page_discard(const struct lu_env *env,
-			     const struct cl_page_slice *slice,
-			     struct cl_io *unused)
-{
-	struct page	   *vmpage  = cl2vm_page(slice);
-	struct address_space *mapping;
-	struct ccc_page      *cpg     = cl2ccc_page(slice);
-
-	LASSERT(vmpage != NULL);
-	LASSERT(PageLocked(vmpage));
-
-	mapping = vmpage->mapping;
-
-	if (cpg->cpg_defer_uptodate && !cpg->cpg_ra_used)
-		ll_ra_stats_inc(mapping, RA_STAT_DISCARDED);
-
-	/*
-	 * truncate_complete_page() calls
-	 * a_ops->invalidatepage()->cl_page_delete()->vvp_page_delete().
-	 */
-	truncate_complete_page(mapping, vmpage);
-}
-
-static int vvp_page_unmap(const struct lu_env *env,
-			  const struct cl_page_slice *slice,
-			  struct cl_io *unused)
-{
-	struct page *vmpage = cl2vm_page(slice);
-	__u64       offset;
-
-	LASSERT(vmpage != NULL);
-	LASSERT(PageLocked(vmpage));
-
-	offset = vmpage->index << PAGE_CACHE_SHIFT;
-
-	/*
-	 * XXX is it safe to call this with the page lock held?
-	 */
-	ll_teardown_mmaps(vmpage->mapping, offset, offset + PAGE_CACHE_SIZE);
-	return 0;
-}
-
-static void vvp_page_delete(const struct lu_env *env,
-			    const struct cl_page_slice *slice)
-{
-	struct page       *vmpage = cl2vm_page(slice);
-	struct inode     *inode  = vmpage->mapping->host;
-	struct cl_object *obj    = slice->cpl_obj;
-
-	LASSERT(PageLocked(vmpage));
-	LASSERT((struct cl_page *)vmpage->private == slice->cpl_page);
-	LASSERT(inode == ccc_object_inode(obj));
-
-	vvp_write_complete(cl2ccc(obj), cl2ccc_page(slice));
-	ClearPagePrivate(vmpage);
-	vmpage->private = 0;
-	/*
-	 * Reference from vmpage to cl_page is removed, but the reference back
-	 * is still here. It is removed later in vvp_page_fini().
-	 */
-}
-
-static void vvp_page_export(const struct lu_env *env,
-			    const struct cl_page_slice *slice,
-			    int uptodate)
-{
-	struct page *vmpage = cl2vm_page(slice);
-
-	LASSERT(vmpage != NULL);
-	LASSERT(PageLocked(vmpage));
-	if (uptodate)
-		SetPageUptodate(vmpage);
-	else
-		ClearPageUptodate(vmpage);
-}
-
-static int vvp_page_is_vmlocked(const struct lu_env *env,
-				const struct cl_page_slice *slice)
-{
-	return PageLocked(cl2vm_page(slice)) ? -EBUSY : -ENODATA;
-}
-
-static int vvp_page_prep_read(const struct lu_env *env,
-			      const struct cl_page_slice *slice,
-			      struct cl_io *unused)
-{
-	/* Skip the page already marked as PG_uptodate. */
-	return PageUptodate(cl2vm_page(slice)) ? -EALREADY : 0;
-}
-
-static int vvp_page_prep_write(const struct lu_env *env,
-			       const struct cl_page_slice *slice,
-			       struct cl_io *unused)
-{
-	struct page *vmpage = cl2vm_page(slice);
-	struct cl_page *pg = slice->cpl_page;
-
-	LASSERT(PageLocked(vmpage));
-	LASSERT(!PageDirty(vmpage));
-
-	/* ll_writepage path is not a sync write, so need to set page writeback
-	 * flag */
-	if (!pg->cp_sync_io)
-		set_page_writeback(vmpage);
-
-	vvp_write_pending(cl2ccc(slice->cpl_obj), cl2ccc_page(slice));
-
-	return 0;
-}
-
-/**
- * Handles page transfer errors at VM level.
- *
- * This takes inode as a separate argument, because inode on which error is to
- * be set can be different from \a vmpage inode in case of direct-io.
- */
-static void vvp_vmpage_error(struct inode *inode, struct page *vmpage, int ioret)
-{
-	struct ccc_object *obj = cl_inode2ccc(inode);
-
-	if (ioret == 0) {
-		ClearPageError(vmpage);
-		obj->cob_discard_page_warned = 0;
-	} else {
-		SetPageError(vmpage);
-		if (ioret == -ENOSPC)
-			set_bit(AS_ENOSPC, &inode->i_mapping->flags);
-		else
-			set_bit(AS_EIO, &inode->i_mapping->flags);
-
-		if ((ioret == -ESHUTDOWN || ioret == -EINTR) &&
-		     obj->cob_discard_page_warned == 0) {
-			obj->cob_discard_page_warned = 1;
-			ll_dirty_page_discard_warn(vmpage, ioret);
-		}
-	}
-}
-
-static void vvp_page_completion_read(const struct lu_env *env,
-				     const struct cl_page_slice *slice,
-				     int ioret)
-{
-	struct ccc_page *cp     = cl2ccc_page(slice);
-	struct page      *vmpage = cp->cpg_page;
-	struct cl_page  *page   = cl_page_top(slice->cpl_page);
-	struct inode    *inode  = ccc_object_inode(page->cp_obj);
-
-	LASSERT(PageLocked(vmpage));
-	CL_PAGE_HEADER(D_PAGE, env, page, "completing READ with %d\n", ioret);
-
-	if (cp->cpg_defer_uptodate)
-		ll_ra_count_put(ll_i2sbi(inode), 1);
-
-	if (ioret == 0)  {
-		if (!cp->cpg_defer_uptodate)
-			cl_page_export(env, page, 1);
-	} else
-		cp->cpg_defer_uptodate = 0;
-
-	if (page->cp_sync_io == NULL)
-		unlock_page(vmpage);
-}
-
-static void vvp_page_completion_write(const struct lu_env *env,
-				      const struct cl_page_slice *slice,
-				      int ioret)
-{
-	struct ccc_page *cp     = cl2ccc_page(slice);
-	struct cl_page  *pg     = slice->cpl_page;
-	struct page      *vmpage = cp->cpg_page;
-
-	CL_PAGE_HEADER(D_PAGE, env, pg, "completing WRITE with %d\n", ioret);
-
-	/*
-	 * TODO: Actually it makes sense to add the page into oap pending
-	 * list again and so that we don't need to take the page out from
-	 * SoM write pending list, if we just meet a recoverable error,
-	 * -ENOMEM, etc.
-	 * To implement this, we just need to return a non zero value in
-	 * ->cpo_completion method. The underlying transfer should be notified
-	 * and then re-add the page into pending transfer queue.  -jay
-	 */
-
-	cp->cpg_write_queued = 0;
-	vvp_write_complete(cl2ccc(slice->cpl_obj), cp);
-
-	if (pg->cp_sync_io != NULL) {
-		LASSERT(PageLocked(vmpage));
-		LASSERT(!PageWriteback(vmpage));
-	} else {
-		LASSERT(PageWriteback(vmpage));
-		/*
-		 * Only mark the page error only when it's an async write
-		 * because applications won't wait for IO to finish.
-		 */
-		vvp_vmpage_error(ccc_object_inode(pg->cp_obj), vmpage, ioret);
-
-		end_page_writeback(vmpage);
-	}
-}
-
-/**
- * Implements cl_page_operations::cpo_make_ready() method.
- *
- * This is called to yank a page from the transfer cache and to send it out as
- * a part of transfer. This function try-locks the page. If try-lock failed,
- * page is owned by some concurrent IO, and should be skipped (this is bad,
- * but hopefully rare situation, as it usually results in transfer being
- * shorter than possible).
- *
- * \retval 0      success, page can be placed into transfer
- *
- * \retval -EAGAIN page is either used by concurrent IO has been
- * truncated. Skip it.
- */
-static int vvp_page_make_ready(const struct lu_env *env,
-			       const struct cl_page_slice *slice)
-{
-	struct page *vmpage = cl2vm_page(slice);
-	struct cl_page *pg = slice->cpl_page;
-	int result = 0;
-
-	lock_page(vmpage);
-	if (clear_page_dirty_for_io(vmpage)) {
-		LASSERT(pg->cp_state == CPS_CACHED);
-		/* This actually clears the dirty bit in the radix
-		 * tree. */
-		set_page_writeback(vmpage);
-		vvp_write_pending(cl2ccc(slice->cpl_obj),
-				cl2ccc_page(slice));
-		CL_PAGE_HEADER(D_PAGE, env, pg, "readied\n");
-	} else if (pg->cp_state == CPS_PAGEOUT) {
-		/* is it possible for osc_flush_async_page() to already
-		 * make it ready? */
-		result = -EALREADY;
-	} else {
-		CL_PAGE_DEBUG(D_ERROR, env, pg, "Unexpecting page state %d.\n",
-			      pg->cp_state);
-		LBUG();
-	}
-	unlock_page(vmpage);
-	return result;
-}
-
-static int vvp_page_print(const struct lu_env *env,
-			  const struct cl_page_slice *slice,
-			  void *cookie, lu_printer_t printer)
-{
-	struct ccc_page *vp = cl2ccc_page(slice);
-	struct page      *vmpage = vp->cpg_page;
-
-	(*printer)(env, cookie, LUSTRE_VVP_NAME "-page@%p(%d:%d:%d) vm@%p ",
-		   vp, vp->cpg_defer_uptodate, vp->cpg_ra_used,
-		   vp->cpg_write_queued, vmpage);
-	if (vmpage != NULL) {
-		(*printer)(env, cookie, "%lx %d:%d %lx %lu %slru",
-			   (long)vmpage->flags, page_count(vmpage),
-			   page_mapcount(vmpage), vmpage->private,
-			   page_index(vmpage),
-			   list_empty(&vmpage->lru) ? "not-" : "");
-	}
-	(*printer)(env, cookie, "\n");
-	return 0;
-}
-
-static const struct cl_page_operations vvp_page_ops = {
-	.cpo_own	   = vvp_page_own,
-	.cpo_assume	= vvp_page_assume,
-	.cpo_unassume      = vvp_page_unassume,
-	.cpo_disown	= vvp_page_disown,
-	.cpo_vmpage	= ccc_page_vmpage,
-	.cpo_discard       = vvp_page_discard,
-	.cpo_delete	= vvp_page_delete,
-	.cpo_unmap	 = vvp_page_unmap,
-	.cpo_export	= vvp_page_export,
-	.cpo_is_vmlocked   = vvp_page_is_vmlocked,
-	.cpo_fini	  = vvp_page_fini,
-	.cpo_print	 = vvp_page_print,
-	.cpo_is_under_lock = ccc_page_is_under_lock,
-	.io = {
-		[CRT_READ] = {
-			.cpo_prep	= vvp_page_prep_read,
-			.cpo_completion  = vvp_page_completion_read,
-			.cpo_make_ready  = ccc_fail,
-		},
-		[CRT_WRITE] = {
-			.cpo_prep	= vvp_page_prep_write,
-			.cpo_completion  = vvp_page_completion_write,
-			.cpo_make_ready  = vvp_page_make_ready,
-		}
-	}
-};
-
-static void vvp_transient_page_verify(const struct cl_page *page)
-{
-	struct inode *inode = ccc_object_inode(page->cp_obj);
-
-	LASSERT(!mutex_trylock(&inode->i_mutex));
-}
-
-static int vvp_transient_page_own(const struct lu_env *env,
-				  const struct cl_page_slice *slice,
-				  struct cl_io *unused, int nonblock)
-{
-	vvp_transient_page_verify(slice->cpl_page);
-	return 0;
-}
-
-static void vvp_transient_page_assume(const struct lu_env *env,
-				      const struct cl_page_slice *slice,
-				      struct cl_io *unused)
-{
-	vvp_transient_page_verify(slice->cpl_page);
-}
-
-static void vvp_transient_page_unassume(const struct lu_env *env,
-					const struct cl_page_slice *slice,
-					struct cl_io *unused)
-{
-	vvp_transient_page_verify(slice->cpl_page);
-}
-
-static void vvp_transient_page_disown(const struct lu_env *env,
-				      const struct cl_page_slice *slice,
-				      struct cl_io *unused)
-{
-	vvp_transient_page_verify(slice->cpl_page);
-}
-
-static void vvp_transient_page_discard(const struct lu_env *env,
-				       const struct cl_page_slice *slice,
-				       struct cl_io *unused)
-{
-	struct cl_page *page = slice->cpl_page;
-
-	vvp_transient_page_verify(slice->cpl_page);
-
-	/*
-	 * For transient pages, remove it from the radix tree.
-	 */
-	cl_page_delete(env, page);
-}
-
-static int vvp_transient_page_is_vmlocked(const struct lu_env *env,
-					  const struct cl_page_slice *slice)
-{
-	struct inode    *inode = ccc_object_inode(slice->cpl_obj);
-	int	locked;
-
-	locked = !mutex_trylock(&inode->i_mutex);
-	if (!locked)
-		mutex_unlock(&inode->i_mutex);
-	return locked ? -EBUSY : -ENODATA;
-}
-
-static void
-vvp_transient_page_completion(const struct lu_env *env,
-			      const struct cl_page_slice *slice,
-			      int ioret)
-{
-	vvp_transient_page_verify(slice->cpl_page);
-}
-
-static void vvp_transient_page_fini(const struct lu_env *env,
-				    struct cl_page_slice *slice)
-{
-	struct ccc_page *cp = cl2ccc_page(slice);
-	struct cl_page *clp = slice->cpl_page;
-	struct ccc_object *clobj = cl2ccc(clp->cp_obj);
-
-	vvp_page_fini_common(cp);
-	LASSERT(!mutex_trylock(&clobj->cob_inode->i_mutex));
-	clobj->cob_transient_pages--;
-}
-
-static const struct cl_page_operations vvp_transient_page_ops = {
-	.cpo_own	   = vvp_transient_page_own,
-	.cpo_assume	= vvp_transient_page_assume,
-	.cpo_unassume      = vvp_transient_page_unassume,
-	.cpo_disown	= vvp_transient_page_disown,
-	.cpo_discard       = vvp_transient_page_discard,
-	.cpo_vmpage	= ccc_page_vmpage,
-	.cpo_fini	  = vvp_transient_page_fini,
-	.cpo_is_vmlocked   = vvp_transient_page_is_vmlocked,
-	.cpo_print	 = vvp_page_print,
-	.cpo_is_under_lock = ccc_page_is_under_lock,
-	.io = {
-		[CRT_READ] = {
-			.cpo_prep	= ccc_transient_page_prep,
-			.cpo_completion  = vvp_transient_page_completion,
-		},
-		[CRT_WRITE] = {
-			.cpo_prep	= ccc_transient_page_prep,
-			.cpo_completion  = vvp_transient_page_completion,
-		}
-	}
-};
-
-int vvp_page_init(const struct lu_env *env, struct cl_object *obj,
-		struct cl_page *page, struct page *vmpage)
-{
-	struct ccc_page *cpg = cl_object_page_slice(obj, page);
-
-	CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
-	cpg->cpg_page = vmpage;
-	page_cache_get(vmpage);
-
-	INIT_LIST_HEAD(&cpg->cpg_pending_linkage);
-	if (page->cp_type == CPT_CACHEABLE) {
-		SetPagePrivate(vmpage);
-		vmpage->private = (unsigned long)page;
-		cl_page_slice_add(page, &cpg->cpg_cl, obj,
-				&vvp_page_ops);
-	} else {
-		struct ccc_object *clobj = cl2ccc(obj);
-
-		LASSERT(!mutex_trylock(&clobj->cob_inode->i_mutex));
-		cl_page_slice_add(page, &cpg->cpg_cl, obj,
-				&vvp_transient_page_ops);
-		clobj->cob_transient_pages++;
-	}
-	return 0;
-}
diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c
deleted file mode 100644
index 362a87d0d0d3..000000000000
--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ /dev/null
@@ -1,621 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/selinux.h>
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include "../include/obd_support.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_ver.h"
-#include "../include/lustre_eacl.h"
-
-#include "llite_internal.h"
-
-#define XATTR_USER_T	    (1)
-#define XATTR_TRUSTED_T	 (2)
-#define XATTR_SECURITY_T	(3)
-#define XATTR_ACL_ACCESS_T      (4)
-#define XATTR_ACL_DEFAULT_T     (5)
-#define XATTR_LUSTRE_T	  (6)
-#define XATTR_OTHER_T	   (7)
-
-static
-int get_xattr_type(const char *name)
-{
-	if (!strcmp(name, POSIX_ACL_XATTR_ACCESS))
-		return XATTR_ACL_ACCESS_T;
-
-	if (!strcmp(name, POSIX_ACL_XATTR_DEFAULT))
-		return XATTR_ACL_DEFAULT_T;
-
-	if (!strncmp(name, XATTR_USER_PREFIX,
-		     sizeof(XATTR_USER_PREFIX) - 1))
-		return XATTR_USER_T;
-
-	if (!strncmp(name, XATTR_TRUSTED_PREFIX,
-		     sizeof(XATTR_TRUSTED_PREFIX) - 1))
-		return XATTR_TRUSTED_T;
-
-	if (!strncmp(name, XATTR_SECURITY_PREFIX,
-		     sizeof(XATTR_SECURITY_PREFIX) - 1))
-		return XATTR_SECURITY_T;
-
-	if (!strncmp(name, XATTR_LUSTRE_PREFIX,
-		     sizeof(XATTR_LUSTRE_PREFIX) - 1))
-		return XATTR_LUSTRE_T;
-
-	return XATTR_OTHER_T;
-}
-
-static
-int xattr_type_filter(struct ll_sb_info *sbi, int xattr_type)
-{
-	if ((xattr_type == XATTR_ACL_ACCESS_T ||
-	     xattr_type == XATTR_ACL_DEFAULT_T) &&
-	   !(sbi->ll_flags & LL_SBI_ACL))
-		return -EOPNOTSUPP;
-
-	if (xattr_type == XATTR_USER_T && !(sbi->ll_flags & LL_SBI_USER_XATTR))
-		return -EOPNOTSUPP;
-	if (xattr_type == XATTR_TRUSTED_T && !capable(CFS_CAP_SYS_ADMIN))
-		return -EPERM;
-	if (xattr_type == XATTR_OTHER_T)
-		return -EOPNOTSUPP;
-
-	return 0;
-}
-
-static
-int ll_setxattr_common(struct inode *inode, const char *name,
-		       const void *value, size_t size,
-		       int flags, __u64 valid)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ptlrpc_request *req = NULL;
-	int xattr_type, rc;
-	struct obd_capa *oc;
-#ifdef CONFIG_FS_POSIX_ACL
-	struct rmtacl_ctl_entry *rce = NULL;
-	posix_acl_xattr_header *new_value = NULL;
-	ext_acl_xattr_header *acl = NULL;
-#endif
-	const char *pv = value;
-
-	xattr_type = get_xattr_type(name);
-	rc = xattr_type_filter(sbi, xattr_type);
-	if (rc)
-		return rc;
-
-	if ((xattr_type == XATTR_ACL_ACCESS_T ||
-	     xattr_type == XATTR_ACL_DEFAULT_T) &&
-	    !inode_owner_or_capable(inode))
-		return -EPERM;
-
-	/* b10667: ignore lustre special xattr for now */
-	if ((xattr_type == XATTR_TRUSTED_T && strcmp(name, "trusted.lov") == 0) ||
-	    (xattr_type == XATTR_LUSTRE_T && strcmp(name, "lustre.lov") == 0))
-		return 0;
-
-	/* b15587: ignore security.capability xattr for now */
-	if ((xattr_type == XATTR_SECURITY_T &&
-	    strcmp(name, "security.capability") == 0))
-		return 0;
-
-	/* LU-549:  Disable security.selinux when selinux is disabled */
-	if (xattr_type == XATTR_SECURITY_T && !selinux_is_enabled() &&
-	    strcmp(name, "security.selinux") == 0)
-		return -EOPNOTSUPP;
-
-#ifdef CONFIG_FS_POSIX_ACL
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
-	    (xattr_type == XATTR_ACL_ACCESS_T ||
-	    xattr_type == XATTR_ACL_DEFAULT_T)) {
-		rce = rct_search(&sbi->ll_rct, current_pid());
-		if (rce == NULL ||
-		    (rce->rce_ops != RMT_LSETFACL &&
-		    rce->rce_ops != RMT_RSETFACL))
-			return -EOPNOTSUPP;
-
-		if (rce->rce_ops == RMT_LSETFACL) {
-			struct eacl_entry *ee;
-
-			ee = et_search_del(&sbi->ll_et, current_pid(),
-					   ll_inode2fid(inode), xattr_type);
-			LASSERT(ee != NULL);
-			if (valid & OBD_MD_FLXATTR) {
-				acl = lustre_acl_xattr_merge2ext(
-						(posix_acl_xattr_header *)value,
-						size, ee->ee_acl);
-				if (IS_ERR(acl)) {
-					ee_free(ee);
-					return PTR_ERR(acl);
-				}
-				size =  CFS_ACL_XATTR_SIZE(\
-						le32_to_cpu(acl->a_count), \
-						ext_acl_xattr);
-				pv = (const char *)acl;
-			}
-			ee_free(ee);
-		} else if (rce->rce_ops == RMT_RSETFACL) {
-			size = lustre_posix_acl_xattr_filter(
-						(posix_acl_xattr_header *)value,
-						size, &new_value);
-			if (unlikely(size < 0))
-				return size;
-
-			pv = (const char *)new_value;
-		} else
-			return -EOPNOTSUPP;
-
-		valid |= rce_ops2valid(rce->rce_ops);
-	}
-#endif
-	oc = ll_mdscapa_get(inode);
-	rc = md_setxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
-			 valid, name, pv, size, 0, flags,
-			 ll_i2suppgid(inode), &req);
-	capa_put(oc);
-#ifdef CONFIG_FS_POSIX_ACL
-	if (new_value != NULL)
-		lustre_posix_acl_xattr_free(new_value, size);
-	if (acl != NULL)
-		lustre_ext_acl_xattr_free(acl);
-#endif
-	if (rc) {
-		if (rc == -EOPNOTSUPP && xattr_type == XATTR_USER_T) {
-			LCONSOLE_INFO("Disabling user_xattr feature because it is not supported on the server\n");
-			sbi->ll_flags &= ~LL_SBI_USER_XATTR;
-		}
-		return rc;
-	}
-
-	ptlrpc_req_finished(req);
-	return 0;
-}
-
-int ll_setxattr(struct dentry *dentry, const char *name,
-		const void *value, size_t size, int flags)
-{
-	struct inode *inode = d_inode(dentry);
-
-	LASSERT(inode);
-	LASSERT(name);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
-	       inode->i_ino, inode->i_generation, inode, name);
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1);
-
-	if ((strncmp(name, XATTR_TRUSTED_PREFIX,
-		     sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0 &&
-	     strcmp(name + sizeof(XATTR_TRUSTED_PREFIX) - 1, "lov") == 0) ||
-	    (strncmp(name, XATTR_LUSTRE_PREFIX,
-		     sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 &&
-	     strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) {
-		struct lov_user_md *lump = (struct lov_user_md *)value;
-		int rc = 0;
-
-		if (size != 0 && size < sizeof(struct lov_user_md))
-			return -EINVAL;
-
-		/* Attributes that are saved via getxattr will always have
-		 * the stripe_offset as 0.  Instead, the MDS should be
-		 * allowed to pick the starting OST index.   b=17846 */
-		if (lump != NULL && lump->lmm_stripe_offset == 0)
-			lump->lmm_stripe_offset = -1;
-
-		if (lump != NULL && S_ISREG(inode->i_mode)) {
-			int flags = FMODE_WRITE;
-			int lum_size = (lump->lmm_magic == LOV_USER_MAGIC_V1) ?
-				sizeof(*lump) : sizeof(struct lov_user_md_v3);
-
-			rc = ll_lov_setstripe_ea_info(inode, dentry, flags, lump,
-						      lum_size);
-			/* b10667: rc always be 0 here for now */
-			rc = 0;
-		} else if (S_ISDIR(inode->i_mode)) {
-			rc = ll_dir_setstripe(inode, lump, 0);
-		}
-
-		return rc;
-
-	} else if (strcmp(name, XATTR_NAME_LMA) == 0 ||
-		   strcmp(name, XATTR_NAME_LINK) == 0)
-		return 0;
-
-	return ll_setxattr_common(inode, name, value, size, flags,
-				  OBD_MD_FLXATTR);
-}
-
-int ll_removexattr(struct dentry *dentry, const char *name)
-{
-	struct inode *inode = d_inode(dentry);
-
-	LASSERT(inode);
-	LASSERT(name);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
-	       inode->i_ino, inode->i_generation, inode, name);
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_REMOVEXATTR, 1);
-	return ll_setxattr_common(inode, name, NULL, 0, 0,
-				  OBD_MD_FLXATTRRM);
-}
-
-static
-int ll_getxattr_common(struct inode *inode, const char *name,
-		       void *buffer, size_t size, __u64 valid)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ptlrpc_request *req = NULL;
-	struct mdt_body *body;
-	int xattr_type, rc;
-	void *xdata;
-	struct obd_capa *oc;
-	struct rmtacl_ctl_entry *rce = NULL;
-	struct ll_inode_info *lli = ll_i2info(inode);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
-	       inode->i_ino, inode->i_generation, inode);
-
-	/* listxattr have slightly different behavior from of ext3:
-	 * without 'user_xattr' ext3 will list all xattr names but
-	 * filtered out "^user..*"; we list them all for simplicity.
-	 */
-	if (!name) {
-		xattr_type = XATTR_OTHER_T;
-		goto do_getxattr;
-	}
-
-	xattr_type = get_xattr_type(name);
-	rc = xattr_type_filter(sbi, xattr_type);
-	if (rc)
-		return rc;
-
-	/* b15587: ignore security.capability xattr for now */
-	if ((xattr_type == XATTR_SECURITY_T &&
-	    strcmp(name, "security.capability") == 0))
-		return -ENODATA;
-
-	/* LU-549:  Disable security.selinux when selinux is disabled */
-	if (xattr_type == XATTR_SECURITY_T && !selinux_is_enabled() &&
-	    strcmp(name, "security.selinux") == 0)
-		return -EOPNOTSUPP;
-
-#ifdef CONFIG_FS_POSIX_ACL
-	if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
-	    (xattr_type == XATTR_ACL_ACCESS_T ||
-	    xattr_type == XATTR_ACL_DEFAULT_T)) {
-		rce = rct_search(&sbi->ll_rct, current_pid());
-		if (rce == NULL ||
-		    (rce->rce_ops != RMT_LSETFACL &&
-		    rce->rce_ops != RMT_LGETFACL &&
-		    rce->rce_ops != RMT_RSETFACL &&
-		    rce->rce_ops != RMT_RGETFACL))
-			return -EOPNOTSUPP;
-	}
-
-	/* posix acl is under protection of LOOKUP lock. when calling to this,
-	 * we just have path resolution to the target inode, so we have great
-	 * chance that cached ACL is uptodate.
-	 */
-	if (xattr_type == XATTR_ACL_ACCESS_T &&
-	    !(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
-
-		struct posix_acl *acl;
-
-		spin_lock(&lli->lli_lock);
-		acl = posix_acl_dup(lli->lli_posix_acl);
-		spin_unlock(&lli->lli_lock);
-
-		if (!acl)
-			return -ENODATA;
-
-		rc = posix_acl_to_xattr(&init_user_ns, acl, buffer, size);
-		posix_acl_release(acl);
-		return rc;
-	}
-	if (xattr_type == XATTR_ACL_DEFAULT_T && !S_ISDIR(inode->i_mode))
-		return -ENODATA;
-#endif
-
-do_getxattr:
-	if (sbi->ll_xattr_cache_enabled && xattr_type != XATTR_ACL_ACCESS_T) {
-		rc = ll_xattr_cache_get(inode, name, buffer, size, valid);
-		if (rc == -EAGAIN)
-			goto getxattr_nocache;
-		if (rc < 0)
-			goto out_xattr;
-
-		/* Add "system.posix_acl_access" to the list */
-		if (lli->lli_posix_acl != NULL && valid & OBD_MD_FLXATTRLS) {
-			if (size == 0) {
-				rc += sizeof(XATTR_NAME_ACL_ACCESS);
-			} else if (size - rc >= sizeof(XATTR_NAME_ACL_ACCESS)) {
-				memcpy(buffer + rc, XATTR_NAME_ACL_ACCESS,
-				       sizeof(XATTR_NAME_ACL_ACCESS));
-				rc += sizeof(XATTR_NAME_ACL_ACCESS);
-			} else {
-				rc = -ERANGE;
-				goto out_xattr;
-			}
-		}
-	} else {
-getxattr_nocache:
-		oc = ll_mdscapa_get(inode);
-		rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
-				valid | (rce ? rce_ops2valid(rce->rce_ops) : 0),
-				name, NULL, 0, size, 0, &req);
-		capa_put(oc);
-
-		if (rc < 0)
-			goto out_xattr;
-
-		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		LASSERT(body);
-
-		/* only detect the xattr size */
-		if (size == 0) {
-			rc = body->eadatasize;
-			goto out;
-		}
-
-		if (size < body->eadatasize) {
-			CERROR("server bug: replied size %u > %u\n",
-				body->eadatasize, (int)size);
-			rc = -ERANGE;
-			goto out;
-		}
-
-		if (body->eadatasize == 0) {
-			rc = -ENODATA;
-			goto out;
-		}
-
-		/* do not need swab xattr data */
-		xdata = req_capsule_server_sized_get(&req->rq_pill, &RMF_EADATA,
-							body->eadatasize);
-		if (!xdata) {
-			rc = -EFAULT;
-			goto out;
-		}
-
-		memcpy(buffer, xdata, body->eadatasize);
-		rc = body->eadatasize;
-	}
-
-#ifdef CONFIG_FS_POSIX_ACL
-	if (rce && rce->rce_ops == RMT_LSETFACL) {
-		ext_acl_xattr_header *acl;
-
-		acl = lustre_posix_acl_xattr_2ext(
-					(posix_acl_xattr_header *)buffer, rc);
-		if (IS_ERR(acl)) {
-			rc = PTR_ERR(acl);
-			goto out;
-		}
-
-		rc = ee_add(&sbi->ll_et, current_pid(), ll_inode2fid(inode),
-			    xattr_type, acl);
-		if (unlikely(rc < 0)) {
-			lustre_ext_acl_xattr_free(acl);
-			goto out;
-		}
-	}
-#endif
-
-out_xattr:
-	if (rc == -EOPNOTSUPP && xattr_type == XATTR_USER_T) {
-		LCONSOLE_INFO(
-			"%s: disabling user_xattr feature because it is not supported on the server: rc = %d\n",
-			ll_get_fsname(inode->i_sb, NULL, 0), rc);
-		sbi->ll_flags &= ~LL_SBI_USER_XATTR;
-	}
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-ssize_t ll_getxattr(struct dentry *dentry, const char *name,
-		    void *buffer, size_t size)
-{
-	struct inode *inode = d_inode(dentry);
-
-	LASSERT(inode);
-	LASSERT(name);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
-	       inode->i_ino, inode->i_generation, inode, name);
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1);
-
-	if ((strncmp(name, XATTR_TRUSTED_PREFIX,
-		     sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0 &&
-	     strcmp(name + sizeof(XATTR_TRUSTED_PREFIX) - 1, "lov") == 0) ||
-	    (strncmp(name, XATTR_LUSTRE_PREFIX,
-		     sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 &&
-	     strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) {
-		struct lov_stripe_md *lsm;
-		struct lov_user_md *lump;
-		struct lov_mds_md *lmm = NULL;
-		struct ptlrpc_request *request = NULL;
-		int rc = 0, lmmsize = 0;
-
-		if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
-			return -ENODATA;
-
-		if (size == 0 && S_ISDIR(inode->i_mode)) {
-			/* XXX directory EA is fix for now, optimize to save
-			 * RPC transfer */
-			rc = sizeof(struct lov_user_md);
-			goto out;
-		}
-
-		lsm = ccc_inode_lsm_get(inode);
-		if (lsm == NULL) {
-			if (S_ISDIR(inode->i_mode)) {
-				rc = ll_dir_getstripe(inode, &lmm,
-						      &lmmsize, &request);
-			} else {
-				rc = -ENODATA;
-			}
-		} else {
-			/* LSM is present already after lookup/getattr call.
-			 * we need to grab layout lock once it is implemented */
-			rc = obd_packmd(ll_i2dtexp(inode), &lmm, lsm);
-			lmmsize = rc;
-		}
-		ccc_inode_lsm_put(inode, lsm);
-
-		if (rc < 0)
-			goto out;
-
-		if (size == 0) {
-			/* used to call ll_get_max_mdsize() forward to get
-			 * the maximum buffer size, while some apps (such as
-			 * rsync 3.0.x) care much about the exact xattr value
-			 * size */
-			rc = lmmsize;
-			goto out;
-		}
-
-		if (size < lmmsize) {
-			CERROR("server bug: replied size %d > %d for %pd (%s)\n",
-			       lmmsize, (int)size, dentry, name);
-			rc = -ERANGE;
-			goto out;
-		}
-
-		lump = (struct lov_user_md *)buffer;
-		memcpy(lump, lmm, lmmsize);
-		/* do not return layout gen for getxattr otherwise it would
-		 * confuse tar --xattr by recognizing layout gen as stripe
-		 * offset when the file is restored. See LU-2809. */
-		lump->lmm_layout_gen = 0;
-
-		rc = lmmsize;
-out:
-		if (request)
-			ptlrpc_req_finished(request);
-		else if (lmm)
-			obd_free_diskmd(ll_i2dtexp(inode), &lmm);
-		return rc;
-	}
-
-	return ll_getxattr_common(inode, name, buffer, size, OBD_MD_FLXATTR);
-}
-
-ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size)
-{
-	struct inode *inode = d_inode(dentry);
-	int rc = 0, rc2 = 0;
-	struct lov_mds_md *lmm = NULL;
-	struct ptlrpc_request *request = NULL;
-	int lmmsize;
-
-	LASSERT(inode);
-
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
-	       inode->i_ino, inode->i_generation, inode);
-
-	ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LISTXATTR, 1);
-
-	rc = ll_getxattr_common(inode, NULL, buffer, size, OBD_MD_FLXATTRLS);
-	if (rc < 0)
-		goto out;
-
-	if (buffer != NULL) {
-		struct ll_sb_info *sbi = ll_i2sbi(inode);
-		char *xattr_name = buffer;
-		int xlen, rem = rc;
-
-		while (rem > 0) {
-			xlen = strnlen(xattr_name, rem - 1) + 1;
-			rem -= xlen;
-			if (xattr_type_filter(sbi,
-					get_xattr_type(xattr_name)) == 0) {
-				/* skip OK xattr type
-				 * leave it in buffer
-				 */
-				xattr_name += xlen;
-				continue;
-			}
-			/* move up remaining xattrs in buffer
-			 * removing the xattr that is not OK
-			 */
-			memmove(xattr_name, xattr_name + xlen, rem);
-			rc -= xlen;
-		}
-	}
-	if (S_ISREG(inode->i_mode)) {
-		if (!ll_i2info(inode)->lli_has_smd)
-			rc2 = -1;
-	} else if (S_ISDIR(inode->i_mode)) {
-		rc2 = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
-	}
-
-	if (rc2 < 0) {
-		rc2 = 0;
-		goto out;
-	} else if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)) {
-		const int prefix_len = sizeof(XATTR_LUSTRE_PREFIX) - 1;
-		const size_t name_len   = sizeof("lov") - 1;
-		const size_t total_len  = prefix_len + name_len + 1;
-
-		if (((rc + total_len) > size) && (buffer != NULL)) {
-			ptlrpc_req_finished(request);
-			return -ERANGE;
-		}
-
-		if (buffer != NULL) {
-			buffer += rc;
-			memcpy(buffer, XATTR_LUSTRE_PREFIX, prefix_len);
-			memcpy(buffer + prefix_len, "lov", name_len);
-			buffer[prefix_len + name_len] = '\0';
-		}
-		rc2 = total_len;
-	}
-out:
-	ptlrpc_req_finished(request);
-	rc = rc + rc2;
-
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/llite/xattr_cache.c b/drivers/staging/lustre/lustre/llite/xattr_cache.c
deleted file mode 100644
index 9e763ce244e3..000000000000
--- a/drivers/staging/lustre/lustre/llite/xattr_cache.c
+++ /dev/null
@@ -1,538 +0,0 @@
-/*
- * Copyright 2012 Xyratex Technology Limited
- *
- * Author: Andrew Perepechko <Andrew_Perepechko@xyratex.com>
- *
- */
-
-#define DEBUG_SUBSYSTEM S_LLITE
-
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include "../include/obd_support.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_ver.h"
-#include "llite_internal.h"
-
-/* If we ever have hundreds of extended attributes, we might want to consider
- * using a hash or a tree structure instead of list for faster lookups.
- */
-struct ll_xattr_entry {
-	struct list_head	xe_list;    /* protected with
-					     * lli_xattrs_list_rwsem */
-	char			*xe_name;   /* xattr name, \0-terminated */
-	char			*xe_value;  /* xattr value */
-	unsigned		xe_namelen; /* strlen(xe_name) + 1 */
-	unsigned		xe_vallen;  /* xattr value length */
-};
-
-static struct kmem_cache *xattr_kmem;
-static struct lu_kmem_descr xattr_caches[] = {
-	{
-		.ckd_cache = &xattr_kmem,
-		.ckd_name  = "xattr_kmem",
-		.ckd_size  = sizeof(struct ll_xattr_entry)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-int ll_xattr_init(void)
-{
-	return lu_kmem_init(xattr_caches);
-}
-
-void ll_xattr_fini(void)
-{
-	lu_kmem_fini(xattr_caches);
-}
-
-/**
- * Initializes xattr cache for an inode.
- *
- * This initializes the xattr list and marks cache presence.
- */
-static void ll_xattr_cache_init(struct ll_inode_info *lli)
-{
-
-
-	LASSERT(lli != NULL);
-
-	INIT_LIST_HEAD(&lli->lli_xattrs);
-	lli->lli_flags |= LLIF_XATTR_CACHE;
-}
-
-/**
- *  This looks for a specific extended attribute.
- *
- *  Find in @cache and return @xattr_name attribute in @xattr,
- *  for the NULL @xattr_name return the first cached @xattr.
- *
- *  \retval 0        success
- *  \retval -ENODATA if not found
- */
-static int ll_xattr_cache_find(struct list_head *cache,
-			       const char *xattr_name,
-			       struct ll_xattr_entry **xattr)
-{
-	struct ll_xattr_entry *entry;
-
-
-
-	list_for_each_entry(entry, cache, xe_list) {
-		/* xattr_name == NULL means look for any entry */
-		if (xattr_name == NULL ||
-		    strcmp(xattr_name, entry->xe_name) == 0) {
-			*xattr = entry;
-			CDEBUG(D_CACHE, "find: [%s]=%.*s\n",
-			       entry->xe_name, entry->xe_vallen,
-			       entry->xe_value);
-			return 0;
-		}
-	}
-
-	return -ENODATA;
-}
-
-/**
- * This adds an xattr.
- *
- * Add @xattr_name attr with @xattr_val value and @xattr_val_len length,
- *
- * \retval 0       success
- * \retval -ENOMEM if no memory could be allocated for the cached attr
- * \retval -EPROTO if duplicate xattr is being added
- */
-static int ll_xattr_cache_add(struct list_head *cache,
-			      const char *xattr_name,
-			      const char *xattr_val,
-			      unsigned xattr_val_len)
-{
-	struct ll_xattr_entry *xattr;
-
-
-
-	if (ll_xattr_cache_find(cache, xattr_name, &xattr) == 0) {
-		CDEBUG(D_CACHE, "duplicate xattr: [%s]\n", xattr_name);
-		return -EPROTO;
-	}
-
-	OBD_SLAB_ALLOC_PTR_GFP(xattr, xattr_kmem, GFP_NOFS);
-	if (xattr == NULL) {
-		CDEBUG(D_CACHE, "failed to allocate xattr\n");
-		return -ENOMEM;
-	}
-
-	xattr->xe_name = kstrdup(xattr_name, GFP_NOFS);
-	if (!xattr->xe_name) {
-		CDEBUG(D_CACHE, "failed to alloc xattr name %u\n",
-		       xattr->xe_namelen);
-		goto err_name;
-	}
-	xattr->xe_value = kmemdup(xattr_val, xattr_val_len, GFP_NOFS);
-	if (!xattr->xe_value)
-		goto err_value;
-
-	xattr->xe_vallen = xattr_val_len;
-	list_add(&xattr->xe_list, cache);
-
-	CDEBUG(D_CACHE, "set: [%s]=%.*s\n", xattr_name,
-		xattr_val_len, xattr_val);
-
-	return 0;
-err_value:
-	kfree(xattr->xe_name);
-err_name:
-	OBD_SLAB_FREE_PTR(xattr, xattr_kmem);
-
-	return -ENOMEM;
-}
-
-/**
- * This removes an extended attribute from cache.
- *
- * Remove @xattr_name attribute from @cache.
- *
- * \retval 0        success
- * \retval -ENODATA if @xattr_name is not cached
- */
-static int ll_xattr_cache_del(struct list_head *cache,
-			      const char *xattr_name)
-{
-	struct ll_xattr_entry *xattr;
-
-
-
-	CDEBUG(D_CACHE, "del xattr: %s\n", xattr_name);
-
-	if (ll_xattr_cache_find(cache, xattr_name, &xattr) == 0) {
-		list_del(&xattr->xe_list);
-		kfree(xattr->xe_name);
-		kfree(xattr->xe_value);
-		OBD_SLAB_FREE_PTR(xattr, xattr_kmem);
-
-		return 0;
-	}
-
-	return -ENODATA;
-}
-
-/**
- * This iterates cached extended attributes.
- *
- * Walk over cached attributes in @cache and
- * fill in @xld_buffer or only calculate buffer
- * size if @xld_buffer is NULL.
- *
- * \retval >= 0     buffer list size
- * \retval -ENODATA if the list cannot fit @xld_size buffer
- */
-static int ll_xattr_cache_list(struct list_head *cache,
-			       char *xld_buffer,
-			       int xld_size)
-{
-	struct ll_xattr_entry *xattr, *tmp;
-	int xld_tail = 0;
-
-
-
-	list_for_each_entry_safe(xattr, tmp, cache, xe_list) {
-		CDEBUG(D_CACHE, "list: buffer=%p[%d] name=%s\n",
-			xld_buffer, xld_tail, xattr->xe_name);
-
-		if (xld_buffer) {
-			xld_size -= xattr->xe_namelen;
-			if (xld_size < 0)
-				break;
-			memcpy(&xld_buffer[xld_tail],
-			       xattr->xe_name, xattr->xe_namelen);
-		}
-		xld_tail += xattr->xe_namelen;
-	}
-
-	if (xld_size < 0)
-		return -ERANGE;
-
-	return xld_tail;
-}
-
-/**
- * Check if the xattr cache is initialized (filled).
- *
- * \retval 0 @cache is not initialized
- * \retval 1 @cache is initialized
- */
-static int ll_xattr_cache_valid(struct ll_inode_info *lli)
-{
-	return !!(lli->lli_flags & LLIF_XATTR_CACHE);
-}
-
-/**
- * This finalizes the xattr cache.
- *
- * Free all xattr memory. @lli is the inode info pointer.
- *
- * \retval 0 no error occurred
- */
-static int ll_xattr_cache_destroy_locked(struct ll_inode_info *lli)
-{
-
-
-	if (!ll_xattr_cache_valid(lli))
-		return 0;
-
-	while (ll_xattr_cache_del(&lli->lli_xattrs, NULL) == 0)
-		; /* empty loop */
-	lli->lli_flags &= ~LLIF_XATTR_CACHE;
-
-	return 0;
-}
-
-int ll_xattr_cache_destroy(struct inode *inode)
-{
-	struct ll_inode_info *lli = ll_i2info(inode);
-	int rc;
-
-
-
-	down_write(&lli->lli_xattrs_list_rwsem);
-	rc = ll_xattr_cache_destroy_locked(lli);
-	up_write(&lli->lli_xattrs_list_rwsem);
-
-	return rc;
-}
-
-/**
- * Match or enqueue a PR lock.
- *
- * Find or request an LDLM lock with xattr data.
- * Since LDLM does not provide API for atomic match_or_enqueue,
- * the function handles it with a separate enq lock.
- * If successful, the function exits with the list lock held.
- *
- * \retval 0       no error occurred
- * \retval -ENOMEM not enough memory
- */
-static int ll_xattr_find_get_lock(struct inode *inode,
-				  struct lookup_intent *oit,
-				  struct ptlrpc_request **req)
-{
-	ldlm_mode_t mode;
-	struct lustre_handle lockh = { 0 };
-	struct md_op_data *op_data;
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct ldlm_enqueue_info einfo = { .ei_type = LDLM_IBITS,
-					   .ei_mode = it_to_lock_mode(oit),
-					   .ei_cb_bl = ll_md_blocking_ast,
-					   .ei_cb_cp = ldlm_completion_ast };
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct obd_export *exp = sbi->ll_md_exp;
-	int rc;
-
-
-
-	mutex_lock(&lli->lli_xattrs_enq_lock);
-	/* inode may have been shrunk and recreated, so data is gone, match lock
-	 * only when data exists. */
-	if (ll_xattr_cache_valid(lli)) {
-		/* Try matching first. */
-		mode = ll_take_md_lock(inode, MDS_INODELOCK_XATTR, &lockh, 0,
-				       LCK_PR);
-		if (mode != 0) {
-			/* fake oit in mdc_revalidate_lock() manner */
-			oit->d.lustre.it_lock_handle = lockh.cookie;
-			oit->d.lustre.it_lock_mode = mode;
-			goto out;
-		}
-	}
-
-	/* Enqueue if the lock isn't cached locally. */
-	op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
-				     LUSTRE_OPC_ANY, NULL);
-	if (IS_ERR(op_data)) {
-		mutex_unlock(&lli->lli_xattrs_enq_lock);
-		return PTR_ERR(op_data);
-	}
-
-	op_data->op_valid = OBD_MD_FLXATTR | OBD_MD_FLXATTRLS;
-
-	rc = md_enqueue(exp, &einfo, oit, op_data, &lockh, NULL, 0, NULL, 0);
-	ll_finish_md_op_data(op_data);
-
-	if (rc < 0) {
-		CDEBUG(D_CACHE,
-		       "md_intent_lock failed with %d for fid "DFID"\n",
-		       rc, PFID(ll_inode2fid(inode)));
-		mutex_unlock(&lli->lli_xattrs_enq_lock);
-		return rc;
-	}
-
-	*req = (struct ptlrpc_request *)oit->d.lustre.it_data;
-out:
-	down_write(&lli->lli_xattrs_list_rwsem);
-	mutex_unlock(&lli->lli_xattrs_enq_lock);
-
-	return 0;
-}
-
-/**
- * Refill the xattr cache.
- *
- * Fetch and cache the whole of xattrs for @inode, acquiring
- * a read or a write xattr lock depending on operation in @oit.
- * Intent is dropped on exit unless the operation is setxattr.
- *
- * \retval 0       no error occurred
- * \retval -EPROTO network protocol error
- * \retval -ENOMEM not enough memory for the cache
- */
-static int ll_xattr_cache_refill(struct inode *inode, struct lookup_intent *oit)
-{
-	struct ll_sb_info *sbi = ll_i2sbi(inode);
-	struct ptlrpc_request *req = NULL;
-	const char *xdata, *xval, *xtail, *xvtail;
-	struct ll_inode_info *lli = ll_i2info(inode);
-	struct mdt_body *body;
-	__u32 *xsizes;
-	int rc, i;
-
-
-
-	rc = ll_xattr_find_get_lock(inode, oit, &req);
-	if (rc)
-		goto out_no_unlock;
-
-	/* Do we have the data at this point? */
-	if (ll_xattr_cache_valid(lli)) {
-		ll_stats_ops_tally(sbi, LPROC_LL_GETXATTR_HITS, 1);
-		rc = 0;
-		goto out_maybe_drop;
-	}
-
-	/* Matched but no cache? Cancelled on error by a parallel refill. */
-	if (unlikely(req == NULL)) {
-		CDEBUG(D_CACHE, "cancelled by a parallel getxattr\n");
-		rc = -EIO;
-		goto out_maybe_drop;
-	}
-
-	if (oit->d.lustre.it_status < 0) {
-		CDEBUG(D_CACHE, "getxattr intent returned %d for fid "DFID"\n",
-		       oit->d.lustre.it_status, PFID(ll_inode2fid(inode)));
-		rc = oit->d.lustre.it_status;
-		/* xattr data is so large that we don't want to cache it */
-		if (rc == -ERANGE)
-			rc = -EAGAIN;
-		goto out_destroy;
-	}
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
-		CERROR("no MDT BODY in the refill xattr reply\n");
-		rc = -EPROTO;
-		goto out_destroy;
-	}
-	/* do not need swab xattr data */
-	xdata = req_capsule_server_sized_get(&req->rq_pill, &RMF_EADATA,
-						body->eadatasize);
-	xval = req_capsule_server_sized_get(&req->rq_pill, &RMF_EAVALS,
-						body->aclsize);
-	xsizes = req_capsule_server_sized_get(&req->rq_pill, &RMF_EAVALS_LENS,
-					      body->max_mdsize * sizeof(__u32));
-	if (xdata == NULL || xval == NULL || xsizes == NULL) {
-		CERROR("wrong setxattr reply\n");
-		rc = -EPROTO;
-		goto out_destroy;
-	}
-
-	xtail = xdata + body->eadatasize;
-	xvtail = xval + body->aclsize;
-
-	CDEBUG(D_CACHE, "caching: xdata=%p xtail=%p\n", xdata, xtail);
-
-	ll_xattr_cache_init(lli);
-
-	for (i = 0; i < body->max_mdsize; i++) {
-		CDEBUG(D_CACHE, "caching [%s]=%.*s\n", xdata, *xsizes, xval);
-		/* Perform consistency checks: attr names and vals in pill */
-		if (memchr(xdata, 0, xtail - xdata) == NULL) {
-			CERROR("xattr protocol violation (names are broken)\n");
-			rc = -EPROTO;
-		} else if (xval + *xsizes > xvtail) {
-			CERROR("xattr protocol violation (vals are broken)\n");
-			rc = -EPROTO;
-		} else if (OBD_FAIL_CHECK(OBD_FAIL_LLITE_XATTR_ENOMEM)) {
-			rc = -ENOMEM;
-		} else if (!strcmp(xdata, XATTR_NAME_ACL_ACCESS)) {
-			/* Filter out ACL ACCESS since it's cached separately */
-			CDEBUG(D_CACHE, "not caching %s\n",
-			       XATTR_NAME_ACL_ACCESS);
-			rc = 0;
-		} else {
-			rc = ll_xattr_cache_add(&lli->lli_xattrs, xdata, xval,
-						*xsizes);
-		}
-		if (rc < 0) {
-			ll_xattr_cache_destroy_locked(lli);
-			goto out_destroy;
-		}
-		xdata += strlen(xdata) + 1;
-		xval  += *xsizes;
-		xsizes++;
-	}
-
-	if (xdata != xtail || xval != xvtail)
-		CERROR("a hole in xattr data\n");
-
-	ll_set_lock_data(sbi->ll_md_exp, inode, oit, NULL);
-
-	goto out_maybe_drop;
-out_maybe_drop:
-
-		ll_intent_drop_lock(oit);
-
-	if (rc != 0)
-		up_write(&lli->lli_xattrs_list_rwsem);
-out_no_unlock:
-	ptlrpc_req_finished(req);
-
-	return rc;
-
-out_destroy:
-	up_write(&lli->lli_xattrs_list_rwsem);
-
-	ldlm_lock_decref_and_cancel((struct lustre_handle *)
-					&oit->d.lustre.it_lock_handle,
-					oit->d.lustre.it_lock_mode);
-
-	goto out_no_unlock;
-}
-
-/**
- * Get an xattr value or list xattrs using the write-through cache.
- *
- * Get the xattr value (@valid has OBD_MD_FLXATTR set) of @name or
- * list xattr names (@valid has OBD_MD_FLXATTRLS set) for @inode.
- * The resulting value/list is stored in @buffer if the former
- * is not larger than @size.
- *
- * \retval 0        no error occurred
- * \retval -EPROTO  network protocol error
- * \retval -ENOMEM  not enough memory for the cache
- * \retval -ERANGE  the buffer is not large enough
- * \retval -ENODATA no such attr or the list is empty
- */
-int ll_xattr_cache_get(struct inode *inode,
-			const char *name,
-			char *buffer,
-			size_t size,
-			__u64 valid)
-{
-	struct lookup_intent oit = { .it_op = IT_GETXATTR };
-	struct ll_inode_info *lli = ll_i2info(inode);
-	int rc = 0;
-
-
-
-	LASSERT(!!(valid & OBD_MD_FLXATTR) ^ !!(valid & OBD_MD_FLXATTRLS));
-
-	down_read(&lli->lli_xattrs_list_rwsem);
-	if (!ll_xattr_cache_valid(lli)) {
-		up_read(&lli->lli_xattrs_list_rwsem);
-		rc = ll_xattr_cache_refill(inode, &oit);
-		if (rc)
-			return rc;
-		downgrade_write(&lli->lli_xattrs_list_rwsem);
-	} else {
-		ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR_HITS, 1);
-	}
-
-	if (valid & OBD_MD_FLXATTR) {
-		struct ll_xattr_entry *xattr;
-
-		rc = ll_xattr_cache_find(&lli->lli_xattrs, name, &xattr);
-		if (rc == 0) {
-			rc = xattr->xe_vallen;
-			/* zero size means we are only requested size in rc */
-			if (size != 0) {
-				if (size >= xattr->xe_vallen)
-					memcpy(buffer, xattr->xe_value,
-						xattr->xe_vallen);
-				else
-					rc = -ERANGE;
-			}
-		}
-	} else if (valid & OBD_MD_FLXATTRLS) {
-		rc = ll_xattr_cache_list(&lli->lli_xattrs,
-					 size ? buffer : NULL, size);
-	}
-
-	goto out;
-out:
-	up_read(&lli->lli_xattrs_list_rwsem);
-
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/lmv/Makefile b/drivers/staging/lustre/lustre/lmv/Makefile
deleted file mode 100644
index 1a24299791d7..000000000000
--- a/drivers/staging/lustre/lustre/lmv/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += lmv.o
-lmv-y := lmv_obd.o lmv_intent.o lmv_fld.o lproc_lmv.o
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_fld.c b/drivers/staging/lustre/lustre/lmv/lmv_fld.c
deleted file mode 100644
index ee235926f52b..000000000000
--- a/drivers/staging/lustre/lustre/lmv/lmv_fld.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LMV
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/pagemap.h>
-#include <asm/div64.h>
-#include <linux/seq_file.h>
-
-#include "../include/obd_support.h"
-#include "../include/lustre/lustre_idl.h"
-#include "../include/lustre_fid.h"
-#include "../include/lustre_lib.h"
-#include "../include/lustre_net.h"
-#include "../include/lustre_dlm.h"
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include "lmv_internal.h"
-
-int lmv_fld_lookup(struct lmv_obd *lmv,
-		   const struct lu_fid *fid,
-		   u32 *mds)
-{
-	int rc;
-
-	/* FIXME: Currently ZFS still use local seq for ROOT unfortunately, and
-	 * this fid_is_local check should be removed once LU-2240 is fixed */
-	LASSERTF((fid_seq_in_fldb(fid_seq(fid)) ||
-		  fid_seq_is_local_file(fid_seq(fid))) &&
-		 fid_is_sane(fid), DFID" is insane!\n", PFID(fid));
-
-	rc = fld_client_lookup(&lmv->lmv_fld, fid_seq(fid), mds,
-			       LU_SEQ_RANGE_MDT, NULL);
-	if (rc) {
-		CERROR("Error while looking for mds number. Seq %#llx, err = %d\n",
-		       fid_seq(fid), rc);
-		return rc;
-	}
-
-	CDEBUG(D_INODE, "FLD lookup got mds #%x for fid="DFID"\n",
-	       *mds, PFID(fid));
-
-	if (*mds >= lmv->desc.ld_tgt_count) {
-		CERROR("FLD lookup got invalid mds #%x (max: %x) for fid=" DFID "\n", *mds, lmv->desc.ld_tgt_count,
-		       PFID(fid));
-		rc = -EINVAL;
-	}
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_intent.c b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
deleted file mode 100644
index eebe45bdceb6..000000000000
--- a/drivers/staging/lustre/lustre/lmv/lmv_intent.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LMV
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/pagemap.h>
-#include <asm/div64.h>
-#include <linux/seq_file.h>
-#include <linux/namei.h>
-#include "../include/lustre_intent.h"
-#include "../include/obd_support.h"
-#include "../include/lustre/lustre_idl.h"
-#include "../include/lustre_lib.h"
-#include "../include/lustre_net.h"
-#include "../include/lustre_dlm.h"
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include "lmv_internal.h"
-
-static int lmv_intent_remote(struct obd_export *exp, void *lmm,
-			     int lmmsize, struct lookup_intent *it,
-			     const struct lu_fid *parent_fid, int flags,
-			     struct ptlrpc_request **reqp,
-			     ldlm_blocking_callback cb_blocking,
-			     __u64 extra_lock_flags)
-{
-	struct obd_device	*obd = exp->exp_obd;
-	struct lmv_obd		*lmv = &obd->u.lmv;
-	struct ptlrpc_request	*req = NULL;
-	struct lustre_handle	plock;
-	struct md_op_data	*op_data;
-	struct lmv_tgt_desc	*tgt;
-	struct mdt_body		*body;
-	int			pmode;
-	int			rc = 0;
-
-	body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
-		return -EPROTO;
-
-	LASSERT((body->valid & OBD_MD_MDS));
-
-	/*
-	 * Unfortunately, we have to lie to MDC/MDS to retrieve
-	 * attributes llite needs and provideproper locking.
-	 */
-	if (it->it_op & IT_LOOKUP)
-		it->it_op = IT_GETATTR;
-
-	/*
-	 * We got LOOKUP lock, but we really need attrs.
-	 */
-	pmode = it->d.lustre.it_lock_mode;
-	if (pmode) {
-		plock.cookie = it->d.lustre.it_lock_handle;
-		it->d.lustre.it_lock_mode = 0;
-		it->d.lustre.it_data = NULL;
-	}
-
-	LASSERT(fid_is_sane(&body->fid1));
-
-	tgt = lmv_find_target(lmv, &body->fid1);
-	if (IS_ERR(tgt)) {
-		rc = PTR_ERR(tgt);
-		goto out;
-	}
-
-	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (!op_data) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	op_data->op_fid1 = body->fid1;
-	/* Sent the parent FID to the remote MDT */
-	if (parent_fid != NULL) {
-		/* The parent fid is only for remote open to
-		 * check whether the open is from OBF,
-		 * see mdt_cross_open */
-		LASSERT(it->it_op & IT_OPEN);
-		op_data->op_fid2 = *parent_fid;
-		/* Add object FID to op_fid3, in case it needs to check stale
-		 * (M_CHECK_STALE), see mdc_finish_intent_lock */
-		op_data->op_fid3 = body->fid1;
-	}
-
-	op_data->op_bias = MDS_CROSS_REF;
-	CDEBUG(D_INODE, "REMOTE_INTENT with fid="DFID" -> mds #%d\n",
-	       PFID(&body->fid1), tgt->ltd_idx);
-
-	rc = md_intent_lock(tgt->ltd_exp, op_data, lmm, lmmsize, it,
-			    flags, &req, cb_blocking, extra_lock_flags);
-	if (rc)
-		goto out_free_op_data;
-
-	/*
-	 * LLite needs LOOKUP lock to track dentry revocation in order to
-	 * maintain dcache consistency. Thus drop UPDATE|PERM lock here
-	 * and put LOOKUP in request.
-	 */
-	if (it->d.lustre.it_lock_mode != 0) {
-		it->d.lustre.it_remote_lock_handle =
-					it->d.lustre.it_lock_handle;
-		it->d.lustre.it_remote_lock_mode = it->d.lustre.it_lock_mode;
-	}
-
-	it->d.lustre.it_lock_handle = plock.cookie;
-	it->d.lustre.it_lock_mode = pmode;
-
-out_free_op_data:
-	kfree(op_data);
-out:
-	if (rc && pmode)
-		ldlm_lock_decref(&plock, pmode);
-
-	ptlrpc_req_finished(*reqp);
-	*reqp = req;
-	return rc;
-}
-
-/*
- * IT_OPEN is intended to open (and create, possible) an object. Parent (pid)
- * may be split dir.
- */
-int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
-		    void *lmm, int lmmsize, struct lookup_intent *it,
-		    int flags, struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags)
-{
-	struct obd_device	*obd = exp->exp_obd;
-	struct lmv_obd		*lmv = &obd->u.lmv;
-	struct lmv_tgt_desc	*tgt;
-	struct mdt_body		*body;
-	int			rc;
-
-	tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	/* If it is ready to open the file by FID, do not need
-	 * allocate FID at all, otherwise it will confuse MDT */
-	if ((it->it_op & IT_CREAT) &&
-	    !(it->it_flags & MDS_OPEN_BY_FID)) {
-		/*
-		 * For open with IT_CREATE and for IT_CREATE cases allocate new
-		 * fid and setup FLD for it.
-		 */
-		op_data->op_fid3 = op_data->op_fid2;
-		rc = lmv_fid_alloc(exp, &op_data->op_fid2, op_data);
-		if (rc != 0)
-			return rc;
-	}
-
-	CDEBUG(D_INODE, "OPEN_INTENT with fid1=" DFID ", fid2=" DFID ", name='%s' -> mds #%d\n",
-	       PFID(&op_data->op_fid1),
-	       PFID(&op_data->op_fid2), op_data->op_name, tgt->ltd_idx);
-
-	rc = md_intent_lock(tgt->ltd_exp, op_data, lmm, lmmsize, it, flags,
-			    reqp, cb_blocking, extra_lock_flags);
-	if (rc != 0)
-		return rc;
-	/*
-	 * Nothing is found, do not access body->fid1 as it is zero and thus
-	 * pointless.
-	 */
-	if ((it->d.lustre.it_disposition & DISP_LOOKUP_NEG) &&
-	    !(it->d.lustre.it_disposition & DISP_OPEN_CREATE) &&
-	    !(it->d.lustre.it_disposition & DISP_OPEN_OPEN))
-		return rc;
-
-	body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
-		return -EPROTO;
-	/*
-	 * Not cross-ref case, just get out of here.
-	 */
-	if (likely(!(body->valid & OBD_MD_MDS)))
-		return 0;
-
-	/*
-	 * Okay, MDS has returned success. Probably name has been resolved in
-	 * remote inode.
-	 */
-	rc = lmv_intent_remote(exp, lmm, lmmsize, it, &op_data->op_fid1, flags,
-			       reqp, cb_blocking, extra_lock_flags);
-	if (rc != 0) {
-		LASSERT(rc < 0);
-		/*
-		 * This is possible, that some userspace application will try to
-		 * open file as directory and we will have -ENOTDIR here. As
-		 * this is normal situation, we should not print error here,
-		 * only debug info.
-		 */
-		CDEBUG(D_INODE, "Can't handle remote %s: dir " DFID "(" DFID "):%*s: %d\n",
-		       LL_IT2STR(it), PFID(&op_data->op_fid2),
-		       PFID(&op_data->op_fid1), op_data->op_namelen,
-		       op_data->op_name, rc);
-		return rc;
-	}
-
-	return rc;
-}
-
-/*
- * Handler for: getattr, lookup and revalidate cases.
- */
-int lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data,
-		      void *lmm, int lmmsize, struct lookup_intent *it,
-		      int flags, struct ptlrpc_request **reqp,
-		      ldlm_blocking_callback cb_blocking,
-		      __u64 extra_lock_flags)
-{
-	struct obd_device      *obd = exp->exp_obd;
-	struct lmv_obd	 *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc    *tgt = NULL;
-	struct mdt_body	*body;
-	int		     rc = 0;
-
-	tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	if (!fid_is_sane(&op_data->op_fid2))
-		fid_zero(&op_data->op_fid2);
-
-	CDEBUG(D_INODE, "LOOKUP_INTENT with fid1="DFID", fid2="DFID
-	       ", name='%s' -> mds #%d\n", PFID(&op_data->op_fid1),
-	       PFID(&op_data->op_fid2),
-	       op_data->op_name ? op_data->op_name : "<NULL>",
-	       tgt->ltd_idx);
-
-	op_data->op_bias &= ~MDS_CROSS_REF;
-
-	rc = md_intent_lock(tgt->ltd_exp, op_data, lmm, lmmsize, it,
-			     flags, reqp, cb_blocking, extra_lock_flags);
-
-	if (rc < 0 || *reqp == NULL)
-		return rc;
-
-	/*
-	 * MDS has returned success. Probably name has been resolved in
-	 * remote inode. Let's check this.
-	 */
-	body = req_capsule_server_get(&(*reqp)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
-		return -EPROTO;
-	/* Not cross-ref case, just get out of here. */
-	if (likely(!(body->valid & OBD_MD_MDS)))
-		return 0;
-
-	rc = lmv_intent_remote(exp, lmm, lmmsize, it, NULL, flags, reqp,
-			       cb_blocking, extra_lock_flags);
-
-	return rc;
-}
-
-int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
-		    void *lmm, int lmmsize, struct lookup_intent *it,
-		    int flags, struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags)
-{
-	struct obd_device *obd = exp->exp_obd;
-	int		rc;
-
-	LASSERT(it != NULL);
-	LASSERT(fid_is_sane(&op_data->op_fid1));
-
-	CDEBUG(D_INODE, "INTENT LOCK '%s' for '%*s' on "DFID"\n",
-	       LL_IT2STR(it), op_data->op_namelen, op_data->op_name,
-	       PFID(&op_data->op_fid1));
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	if (it->it_op & (IT_LOOKUP | IT_GETATTR | IT_LAYOUT))
-		rc = lmv_intent_lookup(exp, op_data, lmm, lmmsize, it,
-				       flags, reqp, cb_blocking,
-				       extra_lock_flags);
-	else if (it->it_op & IT_OPEN)
-		rc = lmv_intent_open(exp, op_data, lmm, lmmsize, it,
-				     flags, reqp, cb_blocking,
-				     extra_lock_flags);
-	else
-		LBUG();
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
deleted file mode 100644
index b808728daee7..000000000000
--- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LMV_INTERNAL_H_
-#define _LMV_INTERNAL_H_
-
-#include "../include/lustre/lustre_idl.h"
-#include "../include/obd.h"
-
-#define LMV_MAX_TGT_COUNT 128
-
-#define lmv_init_lock(lmv)   mutex_lock(&lmv->init_mutex)
-#define lmv_init_unlock(lmv) mutex_unlock(&lmv->init_mutex)
-
-#define LL_IT2STR(it)					\
-	((it) ? ldlm_it2str((it)->it_op) : "0")
-
-int lmv_check_connect(struct obd_device *obd);
-
-int lmv_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
-		    void *lmm, int lmmsize, struct lookup_intent *it,
-		    int flags, struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags);
-
-int lmv_intent_lookup(struct obd_export *exp, struct md_op_data *op_data,
-		      void *lmm, int lmmsize, struct lookup_intent *it,
-		      int flags, struct ptlrpc_request **reqp,
-		      ldlm_blocking_callback cb_blocking,
-		      __u64 extra_lock_flags);
-
-int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
-		    void *lmm, int lmmsize, struct lookup_intent *it,
-		    int flags, struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags);
-
-int lmv_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
-		     void *, int);
-int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid, u32 *mds);
-int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds);
-int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
-		  struct md_op_data *op_data);
-
-static inline struct lmv_stripe_md *lmv_get_mea(struct ptlrpc_request *req)
-{
-	struct mdt_body	 *body;
-	struct lmv_stripe_md    *mea;
-
-	LASSERT(req != NULL);
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-
-	if (!body || !S_ISDIR(body->mode) || !body->eadatasize)
-		return NULL;
-
-	mea = req_capsule_server_sized_get(&req->rq_pill, &RMF_MDT_MD,
-					   body->eadatasize);
-	LASSERT(mea != NULL);
-
-	if (mea->mea_count == 0)
-		return NULL;
-	if (mea->mea_magic != MEA_MAGIC_LAST_CHAR &&
-		mea->mea_magic != MEA_MAGIC_ALL_CHARS &&
-		mea->mea_magic != MEA_MAGIC_HASH_SEGMENT)
-		return NULL;
-
-	return mea;
-}
-
-static inline int lmv_get_easize(struct lmv_obd *lmv)
-{
-	return sizeof(struct lmv_stripe_md) +
-		lmv->desc.ld_tgt_count *
-		sizeof(struct lu_fid);
-}
-
-static inline struct lmv_tgt_desc *
-lmv_get_target(struct lmv_obd *lmv, u32 mds)
-{
-	int count = lmv->desc.ld_tgt_count;
-	int i;
-
-	for (i = 0; i < count; i++) {
-		if (lmv->tgts[i] == NULL)
-			continue;
-
-		if (lmv->tgts[i]->ltd_idx == mds)
-			return lmv->tgts[i];
-	}
-
-	return ERR_PTR(-ENODEV);
-}
-
-static inline struct lmv_tgt_desc *
-lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
-{
-	u32 mds = 0;
-	int rc;
-
-	if (lmv->desc.ld_tgt_count > 1) {
-		rc = lmv_fld_lookup(lmv, fid, &mds);
-		if (rc)
-			return ERR_PTR(rc);
-	}
-
-	return lmv_get_target(lmv, mds);
-}
-
-struct lmv_tgt_desc
-*lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
-		struct lu_fid *fid);
-/* lproc_lmv.c */
-void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars);
-
-extern struct file_operations lmv_proc_target_fops;
-
-#endif
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
deleted file mode 100644
index c9e0536e9f2a..000000000000
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ /dev/null
@@ -1,2852 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LMV
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pagemap.h>
-#include <linux/mm.h>
-#include <asm/div64.h>
-#include <linux/seq_file.h>
-#include <linux/namei.h>
-#include <linux/uaccess.h>
-
-#include "../include/lustre/lustre_idl.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_lib.h"
-#include "../include/lustre_net.h"
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre_lite.h"
-#include "../include/lustre_fid.h"
-#include "lmv_internal.h"
-
-static void lmv_activate_target(struct lmv_obd *lmv,
-				struct lmv_tgt_desc *tgt,
-				int activate)
-{
-	if (tgt->ltd_active == activate)
-		return;
-
-	tgt->ltd_active = activate;
-	lmv->desc.ld_active_tgt_count += (activate ? 1 : -1);
-}
-
-/**
- * Error codes:
- *
- *  -EINVAL  : UUID can't be found in the LMV's target list
- *  -ENOTCONN: The UUID is found, but the target connection is bad (!)
- *  -EBADF   : The UUID is found, but the OBD of the wrong type (!)
- */
-static int lmv_set_mdc_active(struct lmv_obd *lmv, struct obd_uuid *uuid,
-			      int activate)
-{
-	struct lmv_tgt_desc    *uninitialized_var(tgt);
-	struct obd_device      *obd;
-	int		     i;
-	int		     rc = 0;
-
-	CDEBUG(D_INFO, "Searching in lmv %p for uuid %s (activate=%d)\n",
-	       lmv, uuid->uuid, activate);
-
-	spin_lock(&lmv->lmv_lock);
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		tgt = lmv->tgts[i];
-		if (tgt == NULL || tgt->ltd_exp == NULL)
-			continue;
-
-		CDEBUG(D_INFO, "Target idx %d is %s conn %#llx\n", i,
-		       tgt->ltd_uuid.uuid, tgt->ltd_exp->exp_handle.h_cookie);
-
-		if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
-			break;
-	}
-
-	if (i == lmv->desc.ld_tgt_count) {
-		rc = -EINVAL;
-		goto out_lmv_lock;
-	}
-
-	obd = class_exp2obd(tgt->ltd_exp);
-	if (obd == NULL) {
-		rc = -ENOTCONN;
-		goto out_lmv_lock;
-	}
-
-	CDEBUG(D_INFO, "Found OBD %s=%s device %d (%p) type %s at LMV idx %d\n",
-	       obd->obd_name, obd->obd_uuid.uuid, obd->obd_minor, obd,
-	       obd->obd_type->typ_name, i);
-	LASSERT(strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) == 0);
-
-	if (tgt->ltd_active == activate) {
-		CDEBUG(D_INFO, "OBD %p already %sactive!\n", obd,
-		       activate ? "" : "in");
-		goto out_lmv_lock;
-	}
-
-	CDEBUG(D_INFO, "Marking OBD %p %sactive\n", obd,
-	       activate ? "" : "in");
-	lmv_activate_target(lmv, tgt, activate);
-
- out_lmv_lock:
-	spin_unlock(&lmv->lmv_lock);
-	return rc;
-}
-
-static struct obd_uuid *lmv_get_uuid(struct obd_export *exp)
-{
-	struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
-
-	return obd_get_uuid(lmv->tgts[0]->ltd_exp);
-}
-
-static int lmv_notify(struct obd_device *obd, struct obd_device *watched,
-		      enum obd_notify_event ev, void *data)
-{
-	struct obd_connect_data *conn_data;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct obd_uuid	 *uuid;
-	int		      rc = 0;
-
-	if (strcmp(watched->obd_type->typ_name, LUSTRE_MDC_NAME)) {
-		CERROR("unexpected notification of %s %s!\n",
-		       watched->obd_type->typ_name,
-		       watched->obd_name);
-		return -EINVAL;
-	}
-
-	uuid = &watched->u.cli.cl_target_uuid;
-	if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE) {
-		/*
-		 * Set MDC as active before notifying the observer, so the
-		 * observer can use the MDC normally.
-		 */
-		rc = lmv_set_mdc_active(lmv, uuid,
-					ev == OBD_NOTIFY_ACTIVE);
-		if (rc) {
-			CERROR("%sactivation of %s failed: %d\n",
-			       ev == OBD_NOTIFY_ACTIVE ? "" : "de",
-			       uuid->uuid, rc);
-			return rc;
-		}
-	} else if (ev == OBD_NOTIFY_OCD) {
-		conn_data = &watched->u.cli.cl_import->imp_connect_data;
-		/*
-		 * XXX: Make sure that ocd_connect_flags from all targets are
-		 * the same. Otherwise one of MDTs runs wrong version or
-		 * something like this.  --umka
-		 */
-		obd->obd_self_export->exp_connect_data = *conn_data;
-	}
-#if 0
-	else if (ev == OBD_NOTIFY_DISCON) {
-		/*
-		 * For disconnect event, flush fld cache for failout MDS case.
-		 */
-		fld_client_flush(&lmv->lmv_fld);
-	}
-#endif
-	/*
-	 * Pass the notification up the chain.
-	 */
-	if (obd->obd_observer)
-		rc = obd_notify(obd->obd_observer, watched, ev, data);
-
-	return rc;
-}
-
-/**
- * This is fake connect function. Its purpose is to initialize lmv and say
- * caller that everything is okay. Real connection will be performed later.
- */
-static int lmv_connect(const struct lu_env *env,
-		       struct obd_export **exp, struct obd_device *obd,
-		       struct obd_uuid *cluuid, struct obd_connect_data *data,
-		       void *localdata)
-{
-	struct lmv_obd	*lmv = &obd->u.lmv;
-	struct lustre_handle  conn = { 0 };
-	int		    rc = 0;
-
-	/*
-	 * We don't want to actually do the underlying connections more than
-	 * once, so keep track.
-	 */
-	lmv->refcount++;
-	if (lmv->refcount > 1) {
-		*exp = NULL;
-		return 0;
-	}
-
-	rc = class_connect(&conn, obd, cluuid);
-	if (rc) {
-		CERROR("class_connection() returned %d\n", rc);
-		return rc;
-	}
-
-	*exp = class_conn2export(&conn);
-	class_export_get(*exp);
-
-	lmv->exp = *exp;
-	lmv->connected = 0;
-	lmv->cluuid = *cluuid;
-
-	if (data)
-		lmv->conn_data = *data;
-
-	lmv->lmv_tgts_kobj = kobject_create_and_add("target_obds",
-						    &obd->obd_kobj);
-	/*
-	 * All real clients should perform actual connection right away, because
-	 * it is possible, that LMV will not have opportunity to connect targets
-	 * and MDC stuff will be called directly, for instance while reading
-	 * ../mdc/../kbytesfree procfs file, etc.
-	 */
-	if (data->ocd_connect_flags & OBD_CONNECT_REAL)
-		rc = lmv_check_connect(obd);
-
-	if (rc && lmv->lmv_tgts_kobj)
-		kobject_put(lmv->lmv_tgts_kobj);
-
-	return rc;
-}
-
-static void lmv_set_timeouts(struct obd_device *obd)
-{
-	struct lmv_tgt_desc   *tgt;
-	struct lmv_obd	*lmv;
-	int		    i;
-
-	lmv = &obd->u.lmv;
-	if (lmv->server_timeout == 0)
-		return;
-
-	if (lmv->connected == 0)
-		return;
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		tgt = lmv->tgts[i];
-		if (tgt == NULL || tgt->ltd_exp == NULL || tgt->ltd_active == 0)
-			continue;
-
-		obd_set_info_async(NULL, tgt->ltd_exp, sizeof(KEY_INTERMDS),
-				   KEY_INTERMDS, 0, NULL, NULL);
-	}
-}
-
-static int lmv_init_ea_size(struct obd_export *exp, int easize,
-			    int def_easize, int cookiesize, int def_cookiesize)
-{
-	struct obd_device   *obd = exp->exp_obd;
-	struct lmv_obd      *lmv = &obd->u.lmv;
-	int		  i;
-	int		  rc = 0;
-	int		  change = 0;
-
-	if (lmv->max_easize < easize) {
-		lmv->max_easize = easize;
-		change = 1;
-	}
-	if (lmv->max_def_easize < def_easize) {
-		lmv->max_def_easize = def_easize;
-		change = 1;
-	}
-	if (lmv->max_cookiesize < cookiesize) {
-		lmv->max_cookiesize = cookiesize;
-		change = 1;
-	}
-	if (lmv->max_def_cookiesize < def_cookiesize) {
-		lmv->max_def_cookiesize = def_cookiesize;
-		change = 1;
-	}
-	if (change == 0)
-		return 0;
-
-	if (lmv->connected == 0)
-		return 0;
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL ||
-		    lmv->tgts[i]->ltd_exp == NULL ||
-		    lmv->tgts[i]->ltd_active == 0) {
-			CWARN("%s: NULL export for %d\n", obd->obd_name, i);
-			continue;
-		}
-
-		rc = md_init_ea_size(lmv->tgts[i]->ltd_exp, easize, def_easize,
-				     cookiesize, def_cookiesize);
-		if (rc) {
-			CERROR("%s: obd_init_ea_size() failed on MDT target %d: rc = %d.\n",
-			       obd->obd_name, i, rc);
-			break;
-		}
-	}
-	return rc;
-}
-
-#define MAX_STRING_SIZE 128
-
-static int lmv_connect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
-{
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct obd_uuid	 *cluuid = &lmv->cluuid;
-	struct obd_uuid	  lmv_mdc_uuid = { "LMV_MDC_UUID" };
-	struct obd_device       *mdc_obd;
-	struct obd_export       *mdc_exp;
-	struct lu_fld_target     target;
-	int		      rc;
-
-	mdc_obd = class_find_client_obd(&tgt->ltd_uuid, LUSTRE_MDC_NAME,
-					&obd->obd_uuid);
-	if (!mdc_obd) {
-		CERROR("target %s not attached\n", tgt->ltd_uuid.uuid);
-		return -EINVAL;
-	}
-
-	CDEBUG(D_CONFIG, "connect to %s(%s) - %s, %s FOR %s\n",
-		mdc_obd->obd_name, mdc_obd->obd_uuid.uuid,
-		tgt->ltd_uuid.uuid, obd->obd_uuid.uuid,
-		cluuid->uuid);
-
-	if (!mdc_obd->obd_set_up) {
-		CERROR("target %s is not set up\n", tgt->ltd_uuid.uuid);
-		return -EINVAL;
-	}
-
-	rc = obd_connect(NULL, &mdc_exp, mdc_obd, &lmv_mdc_uuid,
-			 &lmv->conn_data, NULL);
-	if (rc) {
-		CERROR("target %s connect error %d\n", tgt->ltd_uuid.uuid, rc);
-		return rc;
-	}
-
-	/*
-	 * Init fid sequence client for this mdc and add new fld target.
-	 */
-	rc = obd_fid_init(mdc_obd, mdc_exp, LUSTRE_SEQ_METADATA);
-	if (rc)
-		return rc;
-
-	target.ft_srv = NULL;
-	target.ft_exp = mdc_exp;
-	target.ft_idx = tgt->ltd_idx;
-
-	fld_client_add_target(&lmv->lmv_fld, &target);
-
-	rc = obd_register_observer(mdc_obd, obd);
-	if (rc) {
-		obd_disconnect(mdc_exp);
-		CERROR("target %s register_observer error %d\n",
-		       tgt->ltd_uuid.uuid, rc);
-		return rc;
-	}
-
-	if (obd->obd_observer) {
-		/*
-		 * Tell the observer about the new target.
-		 */
-		rc = obd_notify(obd->obd_observer, mdc_exp->exp_obd,
-				OBD_NOTIFY_ACTIVE,
-				(void *)(tgt - lmv->tgts[0]));
-		if (rc) {
-			obd_disconnect(mdc_exp);
-			return rc;
-		}
-	}
-
-	tgt->ltd_active = 1;
-	tgt->ltd_exp = mdc_exp;
-	lmv->desc.ld_active_tgt_count++;
-
-	md_init_ea_size(tgt->ltd_exp, lmv->max_easize, lmv->max_def_easize,
-			lmv->max_cookiesize, lmv->max_def_cookiesize);
-
-	CDEBUG(D_CONFIG, "Connected to %s(%s) successfully (%d)\n",
-		mdc_obd->obd_name, mdc_obd->obd_uuid.uuid,
-		atomic_read(&obd->obd_refcount));
-
-	if (lmv->lmv_tgts_kobj)
-		/* Even if we failed to create the link, that's fine */
-		rc = sysfs_create_link(lmv->lmv_tgts_kobj, &mdc_obd->obd_kobj,
-				       mdc_obd->obd_name);
-	return 0;
-}
-
-static void lmv_del_target(struct lmv_obd *lmv, int index)
-{
-	if (lmv->tgts[index] == NULL)
-		return;
-
-	kfree(lmv->tgts[index]);
-	lmv->tgts[index] = NULL;
-	return;
-}
-
-static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
-			   __u32 index, int gen)
-{
-	struct lmv_obd      *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc *tgt;
-	int		  rc = 0;
-
-	CDEBUG(D_CONFIG, "Target uuid: %s. index %d\n", uuidp->uuid, index);
-
-	lmv_init_lock(lmv);
-
-	if (lmv->desc.ld_tgt_count == 0) {
-		struct obd_device *mdc_obd;
-
-		mdc_obd = class_find_client_obd(uuidp, LUSTRE_MDC_NAME,
-						&obd->obd_uuid);
-		if (!mdc_obd) {
-			lmv_init_unlock(lmv);
-			CERROR("%s: Target %s not attached: rc = %d\n",
-			       obd->obd_name, uuidp->uuid, -EINVAL);
-			return -EINVAL;
-		}
-	}
-
-	if ((index < lmv->tgts_size) && (lmv->tgts[index] != NULL)) {
-		tgt = lmv->tgts[index];
-		CERROR("%s: UUID %s already assigned at LOV target index %d: rc = %d\n",
-		       obd->obd_name,
-		       obd_uuid2str(&tgt->ltd_uuid), index, -EEXIST);
-		lmv_init_unlock(lmv);
-		return -EEXIST;
-	}
-
-	if (index >= lmv->tgts_size) {
-		/* We need to reallocate the lmv target array. */
-		struct lmv_tgt_desc **newtgts, **old = NULL;
-		__u32 newsize = 1;
-		__u32 oldsize = 0;
-
-		while (newsize < index + 1)
-			newsize <<= 1;
-		newtgts = kcalloc(newsize, sizeof(*newtgts), GFP_NOFS);
-		if (newtgts == NULL) {
-			lmv_init_unlock(lmv);
-			return -ENOMEM;
-		}
-
-		if (lmv->tgts_size) {
-			memcpy(newtgts, lmv->tgts,
-			       sizeof(*newtgts) * lmv->tgts_size);
-			old = lmv->tgts;
-			oldsize = lmv->tgts_size;
-		}
-
-		lmv->tgts = newtgts;
-		lmv->tgts_size = newsize;
-		smp_rmb();
-		kfree(old);
-
-		CDEBUG(D_CONFIG, "tgts: %p size: %d\n", lmv->tgts,
-		       lmv->tgts_size);
-	}
-
-	tgt = kzalloc(sizeof(*tgt), GFP_NOFS);
-	if (!tgt) {
-		lmv_init_unlock(lmv);
-		return -ENOMEM;
-	}
-
-	mutex_init(&tgt->ltd_fid_mutex);
-	tgt->ltd_idx = index;
-	tgt->ltd_uuid = *uuidp;
-	tgt->ltd_active = 0;
-	lmv->tgts[index] = tgt;
-	if (index >= lmv->desc.ld_tgt_count)
-		lmv->desc.ld_tgt_count = index + 1;
-
-	if (lmv->connected) {
-		rc = lmv_connect_mdc(obd, tgt);
-		if (rc) {
-			spin_lock(&lmv->lmv_lock);
-			lmv->desc.ld_tgt_count--;
-			memset(tgt, 0, sizeof(*tgt));
-			spin_unlock(&lmv->lmv_lock);
-		} else {
-			int easize = sizeof(struct lmv_stripe_md) +
-				lmv->desc.ld_tgt_count * sizeof(struct lu_fid);
-			lmv_init_ea_size(obd->obd_self_export, easize, 0, 0, 0);
-		}
-	}
-
-	lmv_init_unlock(lmv);
-	return rc;
-}
-
-int lmv_check_connect(struct obd_device *obd)
-{
-	struct lmv_obd       *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc  *tgt;
-	int		   i;
-	int		   rc;
-	int		   easize;
-
-	if (lmv->connected)
-		return 0;
-
-	lmv_init_lock(lmv);
-	if (lmv->connected) {
-		lmv_init_unlock(lmv);
-		return 0;
-	}
-
-	if (lmv->desc.ld_tgt_count == 0) {
-		lmv_init_unlock(lmv);
-		CERROR("%s: no targets configured.\n", obd->obd_name);
-		return -EINVAL;
-	}
-
-	CDEBUG(D_CONFIG, "Time to connect %s to %s\n",
-	       lmv->cluuid.uuid, obd->obd_name);
-
-	LASSERT(lmv->tgts != NULL);
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		tgt = lmv->tgts[i];
-		if (tgt == NULL)
-			continue;
-		rc = lmv_connect_mdc(obd, tgt);
-		if (rc)
-			goto out_disc;
-	}
-
-	lmv_set_timeouts(obd);
-	class_export_put(lmv->exp);
-	lmv->connected = 1;
-	easize = lmv_get_easize(lmv);
-	lmv_init_ea_size(obd->obd_self_export, easize, 0, 0, 0);
-	lmv_init_unlock(lmv);
-	return 0;
-
- out_disc:
-	while (i-- > 0) {
-		int rc2;
-		tgt = lmv->tgts[i];
-		if (tgt == NULL)
-			continue;
-		tgt->ltd_active = 0;
-		if (tgt->ltd_exp) {
-			--lmv->desc.ld_active_tgt_count;
-			rc2 = obd_disconnect(tgt->ltd_exp);
-			if (rc2) {
-				CERROR("LMV target %s disconnect on MDC idx %d: error %d\n",
-				       tgt->ltd_uuid.uuid, i, rc2);
-			}
-		}
-	}
-	class_disconnect(lmv->exp);
-	lmv_init_unlock(lmv);
-	return rc;
-}
-
-static int lmv_disconnect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
-{
-	struct lmv_obd	 *lmv = &obd->u.lmv;
-	struct obd_device      *mdc_obd;
-	int		     rc;
-
-	LASSERT(tgt != NULL);
-	LASSERT(obd != NULL);
-
-	mdc_obd = class_exp2obd(tgt->ltd_exp);
-
-	if (mdc_obd) {
-		mdc_obd->obd_force = obd->obd_force;
-		mdc_obd->obd_fail = obd->obd_fail;
-		mdc_obd->obd_no_recov = obd->obd_no_recov;
-	}
-
-	if (lmv->lmv_tgts_kobj)
-		sysfs_remove_link(lmv->lmv_tgts_kobj,
-				  mdc_obd->obd_name);
-
-	rc = obd_fid_fini(tgt->ltd_exp->exp_obd);
-	if (rc)
-		CERROR("Can't finalize fids factory\n");
-
-	CDEBUG(D_INFO, "Disconnected from %s(%s) successfully\n",
-	       tgt->ltd_exp->exp_obd->obd_name,
-	       tgt->ltd_exp->exp_obd->obd_uuid.uuid);
-
-	obd_register_observer(tgt->ltd_exp->exp_obd, NULL);
-	rc = obd_disconnect(tgt->ltd_exp);
-	if (rc) {
-		if (tgt->ltd_active) {
-			CERROR("Target %s disconnect error %d\n",
-			       tgt->ltd_uuid.uuid, rc);
-		}
-	}
-
-	lmv_activate_target(lmv, tgt, 0);
-	tgt->ltd_exp = NULL;
-	return 0;
-}
-
-static int lmv_disconnect(struct obd_export *exp)
-{
-	struct obd_device     *obd = class_exp2obd(exp);
-	struct lmv_obd	*lmv = &obd->u.lmv;
-	int		    rc;
-	int		    i;
-
-	if (!lmv->tgts)
-		goto out_local;
-
-	/*
-	 * Only disconnect the underlying layers on the final disconnect.
-	 */
-	lmv->refcount--;
-	if (lmv->refcount != 0)
-		goto out_local;
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
-			continue;
-
-		lmv_disconnect_mdc(obd, lmv->tgts[i]);
-	}
-
-	if (lmv->lmv_tgts_kobj)
-		kobject_put(lmv->lmv_tgts_kobj);
-
-out_local:
-	/*
-	 * This is the case when no real connection is established by
-	 * lmv_check_connect().
-	 */
-	if (!lmv->connected)
-		class_export_put(exp);
-	rc = class_disconnect(exp);
-	if (lmv->refcount == 0)
-		lmv->connected = 0;
-	return rc;
-}
-
-static int lmv_fid2path(struct obd_export *exp, int len, void *karg, void *uarg)
-{
-	struct obd_device	*obddev = class_exp2obd(exp);
-	struct lmv_obd		*lmv = &obddev->u.lmv;
-	struct getinfo_fid2path *gf;
-	struct lmv_tgt_desc     *tgt;
-	struct getinfo_fid2path *remote_gf = NULL;
-	int			remote_gf_size = 0;
-	int			rc;
-
-	gf = (struct getinfo_fid2path *)karg;
-	tgt = lmv_find_target(lmv, &gf->gf_fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-repeat_fid2path:
-	rc = obd_iocontrol(OBD_IOC_FID2PATH, tgt->ltd_exp, len, gf, uarg);
-	if (rc != 0 && rc != -EREMOTE)
-		goto out_fid2path;
-
-	/* If remote_gf != NULL, it means just building the
-	 * path on the remote MDT, copy this path segment to gf */
-	if (remote_gf != NULL) {
-		struct getinfo_fid2path *ori_gf;
-		char *ptr;
-
-		ori_gf = (struct getinfo_fid2path *)karg;
-		if (strlen(ori_gf->gf_path) +
-		    strlen(gf->gf_path) > ori_gf->gf_pathlen) {
-			rc = -EOVERFLOW;
-			goto out_fid2path;
-		}
-
-		ptr = ori_gf->gf_path;
-
-		memmove(ptr + strlen(gf->gf_path) + 1, ptr,
-			strlen(ori_gf->gf_path));
-
-		strncpy(ptr, gf->gf_path, strlen(gf->gf_path));
-		ptr += strlen(gf->gf_path);
-		*ptr = '/';
-	}
-
-	CDEBUG(D_INFO, "%s: get path %s "DFID" rec: %llu ln: %u\n",
-	       tgt->ltd_exp->exp_obd->obd_name,
-	       gf->gf_path, PFID(&gf->gf_fid), gf->gf_recno,
-	       gf->gf_linkno);
-
-	if (rc == 0)
-		goto out_fid2path;
-
-	/* sigh, has to go to another MDT to do path building further */
-	if (remote_gf == NULL) {
-		remote_gf_size = sizeof(*remote_gf) + PATH_MAX;
-		remote_gf = kzalloc(remote_gf_size, GFP_NOFS);
-		if (!remote_gf) {
-			rc = -ENOMEM;
-			goto out_fid2path;
-		}
-		remote_gf->gf_pathlen = PATH_MAX;
-	}
-
-	if (!fid_is_sane(&gf->gf_fid)) {
-		CERROR("%s: invalid FID "DFID": rc = %d\n",
-		       tgt->ltd_exp->exp_obd->obd_name,
-		       PFID(&gf->gf_fid), -EINVAL);
-		rc = -EINVAL;
-		goto out_fid2path;
-	}
-
-	tgt = lmv_find_target(lmv, &gf->gf_fid);
-	if (IS_ERR(tgt)) {
-		rc = -EINVAL;
-		goto out_fid2path;
-	}
-
-	remote_gf->gf_fid = gf->gf_fid;
-	remote_gf->gf_recno = -1;
-	remote_gf->gf_linkno = -1;
-	memset(remote_gf->gf_path, 0, remote_gf->gf_pathlen);
-	gf = remote_gf;
-	goto repeat_fid2path;
-
-out_fid2path:
-	kfree(remote_gf);
-	return rc;
-}
-
-static int lmv_hsm_req_count(struct lmv_obd *lmv,
-			     const struct hsm_user_request *hur,
-			     const struct lmv_tgt_desc *tgt_mds)
-{
-	int			i, nr = 0;
-	struct lmv_tgt_desc    *curr_tgt;
-
-	/* count how many requests must be sent to the given target */
-	for (i = 0; i < hur->hur_request.hr_itemcount; i++) {
-		curr_tgt = lmv_find_target(lmv, &hur->hur_user_item[i].hui_fid);
-		if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid))
-			nr++;
-	}
-	return nr;
-}
-
-static void lmv_hsm_req_build(struct lmv_obd *lmv,
-			      struct hsm_user_request *hur_in,
-			      const struct lmv_tgt_desc *tgt_mds,
-			      struct hsm_user_request *hur_out)
-{
-	int			i, nr_out;
-	struct lmv_tgt_desc    *curr_tgt;
-
-	/* build the hsm_user_request for the given target */
-	hur_out->hur_request = hur_in->hur_request;
-	nr_out = 0;
-	for (i = 0; i < hur_in->hur_request.hr_itemcount; i++) {
-		curr_tgt = lmv_find_target(lmv,
-					&hur_in->hur_user_item[i].hui_fid);
-		if (obd_uuid_equals(&curr_tgt->ltd_uuid, &tgt_mds->ltd_uuid)) {
-			hur_out->hur_user_item[nr_out] =
-				hur_in->hur_user_item[i];
-			nr_out++;
-		}
-	}
-	hur_out->hur_request.hr_itemcount = nr_out;
-	memcpy(hur_data(hur_out), hur_data(hur_in),
-	       hur_in->hur_request.hr_data_len);
-}
-
-static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len,
-				 struct lustre_kernelcomm *lk, void *uarg)
-{
-	int	i, rc = 0;
-
-	/* unregister request (call from llapi_hsm_copytool_fini) */
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		/* best effort: try to clean as much as possible
-		 * (continue on error) */
-		obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, len, lk, uarg);
-	}
-
-	/* Whatever the result, remove copytool from kuc groups.
-	 * Unreached coordinators will get EPIPE on next requests
-	 * and will unregister automatically.
-	 */
-	rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group);
-	return rc;
-}
-
-static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len,
-			       struct lustre_kernelcomm *lk, void *uarg)
-{
-	struct file	*filp;
-	int		 i, j, err;
-	int		 rc = 0;
-	bool		 any_set = false;
-
-	/* All or nothing: try to register to all MDS.
-	 * In case of failure, unregister from previous MDS,
-	 * except if it because of inactive target. */
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		err = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp,
-				   len, lk, uarg);
-		if (err) {
-			if (lmv->tgts[i]->ltd_active) {
-				/* permanent error */
-				CERROR("error: iocontrol MDC %s on MDTidx %d cmd %x: err = %d\n",
-				       lmv->tgts[i]->ltd_uuid.uuid,
-				       i, cmd, err);
-				rc = err;
-				lk->lk_flags |= LK_FLG_STOP;
-				/* unregister from previous MDS */
-				for (j = 0; j < i; j++)
-					obd_iocontrol(cmd,
-						  lmv->tgts[j]->ltd_exp,
-						  len, lk, uarg);
-				return rc;
-			}
-			/* else: transient error.
-			 * kuc will register to the missing MDT
-			 * when it is back */
-		} else {
-			any_set = true;
-		}
-	}
-
-	if (!any_set)
-		/* no registration done: return error */
-		return -ENOTCONN;
-
-	/* at least one registration done, with no failure */
-	filp = fget(lk->lk_wfd);
-	if (filp == NULL) {
-		return -EBADF;
-	}
-	rc = libcfs_kkuc_group_add(filp, lk->lk_uid, lk->lk_group, lk->lk_data);
-	if (rc != 0 && filp != NULL)
-		fput(filp);
-	return rc;
-}
-
-
-
-
-static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp,
-			 int len, void *karg, void *uarg)
-{
-	struct obd_device    *obddev = class_exp2obd(exp);
-	struct lmv_obd       *lmv = &obddev->u.lmv;
-	int		   i = 0;
-	int		   rc = 0;
-	int		   set = 0;
-	int		   count = lmv->desc.ld_tgt_count;
-
-	if (count == 0)
-		return -ENOTTY;
-
-	switch (cmd) {
-	case IOC_OBD_STATFS: {
-		struct obd_ioctl_data *data = karg;
-		struct obd_device *mdc_obd;
-		struct obd_statfs stat_buf = {0};
-		__u32 index;
-
-		memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
-		if (index >= count)
-			return -ENODEV;
-
-		if (lmv->tgts[index] == NULL ||
-		    lmv->tgts[index]->ltd_active == 0)
-			return -ENODATA;
-
-		mdc_obd = class_exp2obd(lmv->tgts[index]->ltd_exp);
-		if (!mdc_obd)
-			return -EINVAL;
-
-		/* copy UUID */
-		if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(mdc_obd),
-				     min((int) data->ioc_plen2,
-					 (int) sizeof(struct obd_uuid))))
-			return -EFAULT;
-
-		rc = obd_statfs(NULL, lmv->tgts[index]->ltd_exp, &stat_buf,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				0);
-		if (rc)
-			return rc;
-		if (copy_to_user(data->ioc_pbuf1, &stat_buf,
-				     min((int) data->ioc_plen1,
-					 (int) sizeof(stat_buf))))
-			return -EFAULT;
-		break;
-	}
-	case OBD_IOC_QUOTACTL: {
-		struct if_quotactl *qctl = karg;
-		struct lmv_tgt_desc *tgt = NULL;
-		struct obd_quotactl *oqctl;
-
-		if (qctl->qc_valid == QC_MDTIDX) {
-			if (qctl->qc_idx < 0 || count <= qctl->qc_idx)
-				return -EINVAL;
-
-			tgt = lmv->tgts[qctl->qc_idx];
-			if (tgt == NULL || tgt->ltd_exp == NULL)
-				return -EINVAL;
-		} else if (qctl->qc_valid == QC_UUID) {
-			for (i = 0; i < count; i++) {
-				tgt = lmv->tgts[i];
-				if (tgt == NULL)
-					continue;
-				if (!obd_uuid_equals(&tgt->ltd_uuid,
-						     &qctl->obd_uuid))
-					continue;
-
-				if (tgt->ltd_exp == NULL)
-					return -EINVAL;
-
-				break;
-			}
-		} else {
-			return -EINVAL;
-		}
-
-		if (i >= count)
-			return -EAGAIN;
-
-		LASSERT(tgt && tgt->ltd_exp);
-		oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS);
-		if (!oqctl)
-			return -ENOMEM;
-
-		QCTL_COPY(oqctl, qctl);
-		rc = obd_quotactl(tgt->ltd_exp, oqctl);
-		if (rc == 0) {
-			QCTL_COPY(qctl, oqctl);
-			qctl->qc_valid = QC_MDTIDX;
-			qctl->obd_uuid = tgt->ltd_uuid;
-		}
-		kfree(oqctl);
-		break;
-	}
-	case OBD_IOC_CHANGELOG_SEND:
-	case OBD_IOC_CHANGELOG_CLEAR: {
-		struct ioc_changelog *icc = karg;
-
-		if (icc->icc_mdtindex >= count)
-			return -ENODEV;
-
-		if (lmv->tgts[icc->icc_mdtindex] == NULL ||
-		    lmv->tgts[icc->icc_mdtindex]->ltd_exp == NULL ||
-		    lmv->tgts[icc->icc_mdtindex]->ltd_active == 0)
-			return -ENODEV;
-		rc = obd_iocontrol(cmd, lmv->tgts[icc->icc_mdtindex]->ltd_exp,
-				   sizeof(*icc), icc, NULL);
-		break;
-	}
-	case LL_IOC_GET_CONNECT_FLAGS: {
-		if (lmv->tgts[0] == NULL)
-			return -ENODATA;
-		rc = obd_iocontrol(cmd, lmv->tgts[0]->ltd_exp, len, karg, uarg);
-		break;
-	}
-	case OBD_IOC_FID2PATH: {
-		rc = lmv_fid2path(exp, len, karg, uarg);
-		break;
-	}
-	case LL_IOC_HSM_STATE_GET:
-	case LL_IOC_HSM_STATE_SET:
-	case LL_IOC_HSM_ACTION: {
-		struct md_op_data	*op_data = karg;
-		struct lmv_tgt_desc	*tgt;
-
-		tgt = lmv_find_target(lmv, &op_data->op_fid1);
-		if (IS_ERR(tgt))
-				return PTR_ERR(tgt);
-
-		if (tgt->ltd_exp == NULL)
-				return -EINVAL;
-
-		rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
-		break;
-	}
-	case LL_IOC_HSM_PROGRESS: {
-		const struct hsm_progress_kernel *hpk = karg;
-		struct lmv_tgt_desc	*tgt;
-
-		tgt = lmv_find_target(lmv, &hpk->hpk_fid);
-		if (IS_ERR(tgt))
-			return PTR_ERR(tgt);
-		rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
-		break;
-	}
-	case LL_IOC_HSM_REQUEST: {
-		struct hsm_user_request *hur = karg;
-		struct lmv_tgt_desc	*tgt;
-		unsigned int reqcount = hur->hur_request.hr_itemcount;
-
-		if (reqcount == 0)
-			return 0;
-
-		/* if the request is about a single fid
-		 * or if there is a single MDS, no need to split
-		 * the request. */
-		if (reqcount == 1 || count == 1) {
-			tgt = lmv_find_target(lmv,
-					      &hur->hur_user_item[0].hui_fid);
-			if (IS_ERR(tgt))
-				return PTR_ERR(tgt);
-			rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg);
-		} else {
-			/* split fid list to their respective MDS */
-			for (i = 0; i < count; i++) {
-				unsigned int		nr, reqlen;
-				int			rc1;
-				struct hsm_user_request *req;
-
-				nr = lmv_hsm_req_count(lmv, hur, lmv->tgts[i]);
-				if (nr == 0) /* nothing for this MDS */
-					continue;
-
-				/* build a request with fids for this MDS */
-				reqlen = offsetof(typeof(*hur),
-						  hur_user_item[nr])
-					 + hur->hur_request.hr_data_len;
-				req = libcfs_kvzalloc(reqlen, GFP_NOFS);
-				if (req == NULL)
-					return -ENOMEM;
-
-				lmv_hsm_req_build(lmv, hur, lmv->tgts[i], req);
-
-				rc1 = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp,
-						    reqlen, req, uarg);
-				if (rc1 != 0 && rc == 0)
-					rc = rc1;
-				kvfree(req);
-			}
-		}
-		break;
-	}
-	case LL_IOC_LOV_SWAP_LAYOUTS: {
-		struct md_op_data	*op_data = karg;
-		struct lmv_tgt_desc	*tgt1, *tgt2;
-
-		tgt1 = lmv_find_target(lmv, &op_data->op_fid1);
-		if (IS_ERR(tgt1))
-			return PTR_ERR(tgt1);
-
-		tgt2 = lmv_find_target(lmv, &op_data->op_fid2);
-		if (IS_ERR(tgt2))
-			return PTR_ERR(tgt2);
-
-		if ((tgt1->ltd_exp == NULL) || (tgt2->ltd_exp == NULL))
-			return -EINVAL;
-
-		/* only files on same MDT can have their layouts swapped */
-		if (tgt1->ltd_idx != tgt2->ltd_idx)
-			return -EPERM;
-
-		rc = obd_iocontrol(cmd, tgt1->ltd_exp, len, karg, uarg);
-		break;
-	}
-	case LL_IOC_HSM_CT_START: {
-		struct lustre_kernelcomm *lk = karg;
-		if (lk->lk_flags & LK_FLG_STOP)
-			rc = lmv_hsm_ct_unregister(lmv, cmd, len, lk, uarg);
-		else
-			rc = lmv_hsm_ct_register(lmv, cmd, len, lk, uarg);
-		break;
-	}
-	default:
-		for (i = 0; i < count; i++) {
-			struct obd_device *mdc_obd;
-			int err;
-
-			if (lmv->tgts[i] == NULL ||
-			    lmv->tgts[i]->ltd_exp == NULL)
-				continue;
-			/* ll_umount_begin() sets force flag but for lmv, not
-			 * mdc. Let's pass it through */
-			mdc_obd = class_exp2obd(lmv->tgts[i]->ltd_exp);
-			mdc_obd->obd_force = obddev->obd_force;
-			err = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, len,
-					    karg, uarg);
-			if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) {
-				return err;
-			} else if (err) {
-				if (lmv->tgts[i]->ltd_active) {
-					CERROR("error: iocontrol MDC %s on MDTidx %d cmd %x: err = %d\n",
-					       lmv->tgts[i]->ltd_uuid.uuid,
-					       i, cmd, err);
-					if (!rc)
-						rc = err;
-				}
-			} else
-				set = 1;
-		}
-		if (!set && !rc)
-			rc = -EIO;
-	}
-	return rc;
-}
-
-#if 0
-static int lmv_all_chars_policy(int count, const char *name,
-				int len)
-{
-	unsigned int c = 0;
-
-	while (len > 0)
-		c += name[--len];
-	c = c % count;
-	return c;
-}
-
-static int lmv_nid_policy(struct lmv_obd *lmv)
-{
-	struct obd_import *imp;
-	__u32	      id;
-
-	/*
-	 * XXX: To get nid we assume that underlying obd device is mdc.
-	 */
-	imp = class_exp2cliimp(lmv->tgts[0].ltd_exp);
-	id = imp->imp_connection->c_self ^ (imp->imp_connection->c_self >> 32);
-	return id % lmv->desc.ld_tgt_count;
-}
-
-static int lmv_choose_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
-			  enum placement_policy placement)
-{
-	switch (placement) {
-	case PLACEMENT_CHAR_POLICY:
-		return lmv_all_chars_policy(lmv->desc.ld_tgt_count,
-					    op_data->op_name,
-					    op_data->op_namelen);
-	case PLACEMENT_NID_POLICY:
-		return lmv_nid_policy(lmv);
-
-	default:
-		break;
-	}
-
-	CERROR("Unsupported placement policy %x\n", placement);
-	return -EINVAL;
-}
-#endif
-
-/**
- * This is _inode_ placement policy function (not name).
- */
-static int lmv_placement_policy(struct obd_device *obd,
-				struct md_op_data *op_data, u32 *mds)
-{
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-
-	LASSERT(mds != NULL);
-
-	if (lmv->desc.ld_tgt_count == 1) {
-		*mds = 0;
-		return 0;
-	}
-
-	/**
-	 * If stripe_offset is provided during setdirstripe
-	 * (setdirstripe -i xx), xx MDS will be chosen.
-	 */
-	if (op_data->op_cli_flags & CLI_SET_MEA) {
-		struct lmv_user_md *lum;
-
-		lum = (struct lmv_user_md *)op_data->op_data;
-		if (lum->lum_type == LMV_STRIPE_TYPE &&
-		    lum->lum_stripe_offset != -1) {
-			if (lum->lum_stripe_offset >= lmv->desc.ld_tgt_count) {
-				CERROR("%s: Stripe_offset %d > MDT count %d: rc = %d\n",
-				       obd->obd_name,
-				       lum->lum_stripe_offset,
-				       lmv->desc.ld_tgt_count, -ERANGE);
-				return -ERANGE;
-			}
-			*mds = lum->lum_stripe_offset;
-			return 0;
-		}
-	}
-
-	/* Allocate new fid on target according to operation type and parent
-	 * home mds. */
-	*mds = op_data->op_mds;
-	return 0;
-}
-
-int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds)
-{
-	struct lmv_tgt_desc	*tgt;
-	int			 rc;
-
-	tgt = lmv_get_target(lmv, mds);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	/*
-	 * New seq alloc and FLD setup should be atomic. Otherwise we may find
-	 * on server that seq in new allocated fid is not yet known.
-	 */
-	mutex_lock(&tgt->ltd_fid_mutex);
-
-	if (tgt->ltd_active == 0 || tgt->ltd_exp == NULL) {
-		rc = -ENODEV;
-		goto out;
-	}
-
-	/*
-	 * Asking underlaying tgt layer to allocate new fid.
-	 */
-	rc = obd_fid_alloc(tgt->ltd_exp, fid, NULL);
-	if (rc > 0) {
-		LASSERT(fid_is_sane(fid));
-		rc = 0;
-	}
-
-out:
-	mutex_unlock(&tgt->ltd_fid_mutex);
-	return rc;
-}
-
-int lmv_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
-		  struct md_op_data *op_data)
-{
-	struct obd_device     *obd = class_exp2obd(exp);
-	struct lmv_obd	*lmv = &obd->u.lmv;
-	u32		       mds = 0;
-	int		    rc;
-
-	LASSERT(op_data != NULL);
-	LASSERT(fid != NULL);
-
-	rc = lmv_placement_policy(obd, op_data, &mds);
-	if (rc) {
-		CERROR("Can't get target for allocating fid, rc %d\n",
-		       rc);
-		return rc;
-	}
-
-	rc = __lmv_fid_alloc(lmv, fid, mds);
-	if (rc) {
-		CERROR("Can't alloc new fid, rc %d\n", rc);
-		return rc;
-	}
-
-	return rc;
-}
-
-static int lmv_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	struct lmv_obd	     *lmv = &obd->u.lmv;
-	struct lprocfs_static_vars  lvars = { NULL };
-	struct lmv_desc	    *desc;
-	int			 rc;
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
-		CERROR("LMV setup requires a descriptor\n");
-		return -EINVAL;
-	}
-
-	desc = (struct lmv_desc *)lustre_cfg_buf(lcfg, 1);
-	if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
-		CERROR("Lmv descriptor size wrong: %d > %d\n",
-		       (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
-		return -EINVAL;
-	}
-
-	lmv->tgts = kcalloc(32, sizeof(*lmv->tgts), GFP_NOFS);
-	if (lmv->tgts == NULL)
-		return -ENOMEM;
-	lmv->tgts_size = 32;
-
-	obd_str2uuid(&lmv->desc.ld_uuid, desc->ld_uuid.uuid);
-	lmv->desc.ld_tgt_count = 0;
-	lmv->desc.ld_active_tgt_count = 0;
-	lmv->max_cookiesize = 0;
-	lmv->max_def_easize = 0;
-	lmv->max_easize = 0;
-	lmv->lmv_placement = PLACEMENT_CHAR_POLICY;
-
-	spin_lock_init(&lmv->lmv_lock);
-	mutex_init(&lmv->init_mutex);
-
-	lprocfs_lmv_init_vars(&lvars);
-
-	lprocfs_obd_setup(obd, lvars.obd_vars, lvars.sysfs_vars);
-	rc = ldebugfs_seq_create(obd->obd_debugfs_entry, "target_obd",
-				 0444, &lmv_proc_target_fops, obd);
-	if (rc)
-		CWARN("%s: error adding LMV target_obd file: rc = %d\n",
-		      obd->obd_name, rc);
-	rc = fld_client_init(&lmv->lmv_fld, obd->obd_name,
-			     LUSTRE_CLI_FLD_HASH_DHT);
-	if (rc) {
-		CERROR("Can't init FLD, err %d\n", rc);
-		goto out;
-	}
-
-	return 0;
-
-out:
-	return rc;
-}
-
-static int lmv_cleanup(struct obd_device *obd)
-{
-	struct lmv_obd   *lmv = &obd->u.lmv;
-
-	fld_client_fini(&lmv->lmv_fld);
-	if (lmv->tgts != NULL) {
-		int i;
-		for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-			if (lmv->tgts[i] == NULL)
-				continue;
-			lmv_del_target(lmv, i);
-		}
-		kfree(lmv->tgts);
-		lmv->tgts_size = 0;
-	}
-	return 0;
-}
-
-static int lmv_process_config(struct obd_device *obd, u32 len, void *buf)
-{
-	struct lustre_cfg	*lcfg = buf;
-	struct obd_uuid		obd_uuid;
-	int			gen;
-	__u32			index;
-	int			rc;
-
-	switch (lcfg->lcfg_command) {
-	case LCFG_ADD_MDC:
-		/* modify_mdc_tgts add 0:lustre-clilmv  1:lustre-MDT0000_UUID
-		 * 2:0  3:1  4:lustre-MDT0000-mdc_UUID */
-		if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid)) {
-			rc = -EINVAL;
-			goto out;
-		}
-
-		obd_str2uuid(&obd_uuid,  lustre_cfg_buf(lcfg, 1));
-
-		if (sscanf(lustre_cfg_buf(lcfg, 2), "%d", &index) != 1) {
-			rc = -EINVAL;
-			goto out;
-		}
-		if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", &gen) != 1) {
-			rc = -EINVAL;
-			goto out;
-		}
-		rc = lmv_add_target(obd, &obd_uuid, index, gen);
-		goto out;
-	default:
-		CERROR("Unknown command: %d\n", lcfg->lcfg_command);
-		rc = -EINVAL;
-		goto out;
-	}
-out:
-	return rc;
-}
-
-static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
-		      struct obd_statfs *osfs, __u64 max_age, __u32 flags)
-{
-	struct obd_device     *obd = class_exp2obd(exp);
-	struct lmv_obd	*lmv = &obd->u.lmv;
-	struct obd_statfs     *temp;
-	int		    rc = 0;
-	int		    i;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	temp = kzalloc(sizeof(*temp), GFP_NOFS);
-	if (!temp)
-		return -ENOMEM;
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
-			continue;
-
-		rc = obd_statfs(env, lmv->tgts[i]->ltd_exp, temp,
-				max_age, flags);
-		if (rc) {
-			CERROR("can't stat MDS #%d (%s), error %d\n", i,
-			       lmv->tgts[i]->ltd_exp->exp_obd->obd_name,
-			       rc);
-			goto out_free_temp;
-		}
-
-		if (i == 0) {
-			*osfs = *temp;
-			/* If the statfs is from mount, it will needs
-			 * retrieve necessary information from MDT0.
-			 * i.e. mount does not need the merged osfs
-			 * from all of MDT.
-			 * And also clients can be mounted as long as
-			 * MDT0 is in service*/
-			if (flags & OBD_STATFS_FOR_MDT0)
-				goto out_free_temp;
-		} else {
-			osfs->os_bavail += temp->os_bavail;
-			osfs->os_blocks += temp->os_blocks;
-			osfs->os_ffree += temp->os_ffree;
-			osfs->os_files += temp->os_files;
-		}
-	}
-
-out_free_temp:
-	kfree(temp);
-	return rc;
-}
-
-static int lmv_getstatus(struct obd_export *exp,
-			 struct lu_fid *fid,
-			 struct obd_capa **pc)
-{
-	struct obd_device    *obd = exp->exp_obd;
-	struct lmv_obd       *lmv = &obd->u.lmv;
-	int		   rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	rc = md_getstatus(lmv->tgts[0]->ltd_exp, fid, pc);
-	return rc;
-}
-
-static int lmv_getxattr(struct obd_export *exp, const struct lu_fid *fid,
-			struct obd_capa *oc, u64 valid, const char *name,
-			const char *input, int input_size, int output_size,
-			int flags, struct ptlrpc_request **request)
-{
-	struct obd_device      *obd = exp->exp_obd;
-	struct lmv_obd	 *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc    *tgt;
-	int		     rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_getxattr(tgt->ltd_exp, fid, oc, valid, name, input,
-			 input_size, output_size, flags, request);
-
-	return rc;
-}
-
-static int lmv_setxattr(struct obd_export *exp, const struct lu_fid *fid,
-			struct obd_capa *oc, u64 valid, const char *name,
-			const char *input, int input_size, int output_size,
-			int flags, __u32 suppgid,
-			struct ptlrpc_request **request)
-{
-	struct obd_device      *obd = exp->exp_obd;
-	struct lmv_obd	 *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc    *tgt;
-	int		     rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_setxattr(tgt->ltd_exp, fid, oc, valid, name, input,
-			 input_size, output_size, flags, suppgid,
-			 request);
-
-	return rc;
-}
-
-static int lmv_getattr(struct obd_export *exp, struct md_op_data *op_data,
-		       struct ptlrpc_request **request)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	if (op_data->op_flags & MF_GET_MDT_IDX) {
-		op_data->op_mds = tgt->ltd_idx;
-		return 0;
-	}
-
-	rc = md_getattr(tgt->ltd_exp, op_data, request);
-
-	return rc;
-}
-
-static int lmv_null_inode(struct obd_export *exp, const struct lu_fid *fid)
-{
-	struct obd_device   *obd = exp->exp_obd;
-	struct lmv_obd      *lmv = &obd->u.lmv;
-	int		  i;
-	int		  rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INODE, "CBDATA for "DFID"\n", PFID(fid));
-
-	/*
-	 * With DNE every object can have two locks in different namespaces:
-	 * lookup lock in space of MDT storing direntry and update/open lock in
-	 * space of MDT storing inode.
-	 */
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
-			continue;
-		md_null_inode(lmv->tgts[i]->ltd_exp, fid);
-	}
-
-	return 0;
-}
-
-static int lmv_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
-			   ldlm_iterator_t it, void *data)
-{
-	struct obd_device   *obd = exp->exp_obd;
-	struct lmv_obd      *lmv = &obd->u.lmv;
-	int		  i;
-	int		  rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INODE, "CBDATA for "DFID"\n", PFID(fid));
-
-	/*
-	 * With DNE every object can have two locks in different namespaces:
-	 * lookup lock in space of MDT storing direntry and update/open lock in
-	 * space of MDT storing inode.
-	 */
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL)
-			continue;
-		rc = md_find_cbdata(lmv->tgts[i]->ltd_exp, fid, it, data);
-		if (rc)
-			return rc;
-	}
-
-	return rc;
-}
-
-
-static int lmv_close(struct obd_export *exp, struct md_op_data *op_data,
-		     struct md_open_data *mod, struct ptlrpc_request **request)
-{
-	struct obd_device     *obd = exp->exp_obd;
-	struct lmv_obd	*lmv = &obd->u.lmv;
-	struct lmv_tgt_desc   *tgt;
-	int		    rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	CDEBUG(D_INODE, "CLOSE "DFID"\n", PFID(&op_data->op_fid1));
-	rc = md_close(tgt->ltd_exp, op_data, mod, request);
-	return rc;
-}
-
-struct lmv_tgt_desc
-*lmv_locate_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
-		struct lu_fid *fid)
-{
-	struct lmv_tgt_desc *tgt;
-
-	tgt = lmv_find_target(lmv, fid);
-	if (IS_ERR(tgt))
-		return tgt;
-
-	op_data->op_mds = tgt->ltd_idx;
-
-	return tgt;
-}
-
-static int lmv_create(struct obd_export *exp, struct md_op_data *op_data,
-		      const void *data, int datalen, int mode, __u32 uid,
-		      __u32 gid, cfs_cap_t cap_effective, __u64 rdev,
-		      struct ptlrpc_request **request)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	if (!lmv->desc.ld_active_tgt_count)
-		return -EIO;
-
-	tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = lmv_fid_alloc(exp, &op_data->op_fid2, op_data);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INODE, "CREATE '%*s' on "DFID" -> mds #%x\n",
-	       op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1),
-	       op_data->op_mds);
-
-	op_data->op_flags |= MF_MDC_CANCEL_FID1;
-	rc = md_create(tgt->ltd_exp, op_data, data, datalen, mode, uid, gid,
-		       cap_effective, rdev, request);
-
-	if (rc == 0) {
-		if (*request == NULL)
-			return rc;
-		CDEBUG(D_INODE, "Created - "DFID"\n", PFID(&op_data->op_fid2));
-	}
-	return rc;
-}
-
-static int lmv_done_writing(struct obd_export *exp,
-			    struct md_op_data *op_data,
-			    struct md_open_data *mod)
-{
-	struct obd_device     *obd = exp->exp_obd;
-	struct lmv_obd	*lmv = &obd->u.lmv;
-	struct lmv_tgt_desc   *tgt;
-	int		    rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_done_writing(tgt->ltd_exp, op_data, mod);
-	return rc;
-}
-
-static int
-lmv_enqueue_remote(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
-		   struct lookup_intent *it, struct md_op_data *op_data,
-		   struct lustre_handle *lockh, void *lmm, int lmmsize,
-		   __u64 extra_lock_flags)
-{
-	struct ptlrpc_request      *req = it->d.lustre.it_data;
-	struct obd_device	  *obd = exp->exp_obd;
-	struct lmv_obd	     *lmv = &obd->u.lmv;
-	struct lustre_handle	plock;
-	struct lmv_tgt_desc	*tgt;
-	struct md_op_data	  *rdata;
-	struct lu_fid	       fid1;
-	struct mdt_body	    *body;
-	int			 rc = 0;
-	int			 pmode;
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
-
-	if (!(body->valid & OBD_MD_MDS))
-		return 0;
-
-	CDEBUG(D_INODE, "REMOTE_ENQUEUE '%s' on "DFID" -> "DFID"\n",
-	       LL_IT2STR(it), PFID(&op_data->op_fid1), PFID(&body->fid1));
-
-	/*
-	 * We got LOOKUP lock, but we really need attrs.
-	 */
-	pmode = it->d.lustre.it_lock_mode;
-	LASSERT(pmode != 0);
-	memcpy(&plock, lockh, sizeof(plock));
-	it->d.lustre.it_lock_mode = 0;
-	it->d.lustre.it_data = NULL;
-	fid1 = body->fid1;
-
-	ptlrpc_req_finished(req);
-
-	tgt = lmv_find_target(lmv, &fid1);
-	if (IS_ERR(tgt)) {
-		rc = PTR_ERR(tgt);
-		goto out;
-	}
-
-	rdata = kzalloc(sizeof(*rdata), GFP_NOFS);
-	if (!rdata) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rdata->op_fid1 = fid1;
-	rdata->op_bias = MDS_CROSS_REF;
-
-	rc = md_enqueue(tgt->ltd_exp, einfo, it, rdata, lockh,
-			lmm, lmmsize, NULL, extra_lock_flags);
-	kfree(rdata);
-out:
-	ldlm_lock_decref(&plock, pmode);
-	return rc;
-}
-
-static int
-lmv_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
-	    struct lookup_intent *it, struct md_op_data *op_data,
-	    struct lustre_handle *lockh, void *lmm, int lmmsize,
-	    struct ptlrpc_request **req, __u64 extra_lock_flags)
-{
-	struct obd_device	*obd = exp->exp_obd;
-	struct lmv_obd	   *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc      *tgt;
-	int		       rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INODE, "ENQUEUE '%s' on "DFID"\n",
-	       LL_IT2STR(it), PFID(&op_data->op_fid1));
-
-	tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	CDEBUG(D_INODE, "ENQUEUE '%s' on "DFID" -> mds #%d\n",
-	       LL_IT2STR(it), PFID(&op_data->op_fid1), tgt->ltd_idx);
-
-	rc = md_enqueue(tgt->ltd_exp, einfo, it, op_data, lockh,
-			lmm, lmmsize, req, extra_lock_flags);
-
-	if (rc == 0 && it && it->it_op == IT_OPEN) {
-		rc = lmv_enqueue_remote(exp, einfo, it, op_data, lockh,
-					lmm, lmmsize, extra_lock_flags);
-	}
-	return rc;
-}
-
-static int
-lmv_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
-		 struct ptlrpc_request **request)
-{
-	struct ptlrpc_request   *req = NULL;
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	struct mdt_body	 *body;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	CDEBUG(D_INODE, "GETATTR_NAME for %*s on "DFID" -> mds #%d\n",
-	       op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1),
-	       tgt->ltd_idx);
-
-	rc = md_getattr_name(tgt->ltd_exp, op_data, request);
-	if (rc != 0)
-		return rc;
-
-	body = req_capsule_server_get(&(*request)->rq_pill,
-				      &RMF_MDT_BODY);
-	LASSERT(body != NULL);
-
-	if (body->valid & OBD_MD_MDS) {
-		struct lu_fid rid = body->fid1;
-		CDEBUG(D_INODE, "Request attrs for "DFID"\n",
-		       PFID(&rid));
-
-		tgt = lmv_find_target(lmv, &rid);
-		if (IS_ERR(tgt)) {
-			ptlrpc_req_finished(*request);
-			return PTR_ERR(tgt);
-		}
-
-		op_data->op_fid1 = rid;
-		op_data->op_valid |= OBD_MD_FLCROSSREF;
-		op_data->op_namelen = 0;
-		op_data->op_name = NULL;
-		rc = md_getattr_name(tgt->ltd_exp, op_data, &req);
-		ptlrpc_req_finished(*request);
-		*request = req;
-	}
-
-	return rc;
-}
-
-#define md_op_data_fid(op_data, fl)		     \
-	(fl == MF_MDC_CANCEL_FID1 ? &op_data->op_fid1 : \
-	 fl == MF_MDC_CANCEL_FID2 ? &op_data->op_fid2 : \
-	 fl == MF_MDC_CANCEL_FID3 ? &op_data->op_fid3 : \
-	 fl == MF_MDC_CANCEL_FID4 ? &op_data->op_fid4 : \
-	 NULL)
-
-static int lmv_early_cancel(struct obd_export *exp, struct md_op_data *op_data,
-			    int op_tgt, ldlm_mode_t mode, int bits, int flag)
-{
-	struct lu_fid	  *fid = md_op_data_fid(op_data, flag);
-	struct obd_device      *obd = exp->exp_obd;
-	struct lmv_obd	 *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc    *tgt;
-	ldlm_policy_data_t      policy = {{0}};
-	int		     rc = 0;
-
-	if (!fid_is_sane(fid))
-		return 0;
-
-	tgt = lmv_find_target(lmv, fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	if (tgt->ltd_idx != op_tgt) {
-		CDEBUG(D_INODE, "EARLY_CANCEL on "DFID"\n", PFID(fid));
-		policy.l_inodebits.bits = bits;
-		rc = md_cancel_unused(tgt->ltd_exp, fid, &policy,
-				      mode, LCF_ASYNC, NULL);
-	} else {
-		CDEBUG(D_INODE,
-		       "EARLY_CANCEL skip operation target %d on "DFID"\n",
-		       op_tgt, PFID(fid));
-		op_data->op_flags |= flag;
-		rc = 0;
-	}
-
-	return rc;
-}
-
-/*
- * llite passes fid of an target inode in op_data->op_fid1 and id of directory in
- * op_data->op_fid2
- */
-static int lmv_link(struct obd_export *exp, struct md_op_data *op_data,
-		    struct ptlrpc_request **request)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	LASSERT(op_data->op_namelen != 0);
-
-	CDEBUG(D_INODE, "LINK "DFID":%*s to "DFID"\n",
-	       PFID(&op_data->op_fid2), op_data->op_namelen,
-	       op_data->op_name, PFID(&op_data->op_fid1));
-
-	op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
-	op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
-	op_data->op_cap = cfs_curproc_cap_pack();
-	tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid2);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	/*
-	 * Cancel UPDATE lock on child (fid1).
-	 */
-	op_data->op_flags |= MF_MDC_CANCEL_FID2;
-	rc = lmv_early_cancel(exp, op_data, tgt->ltd_idx, LCK_EX,
-			      MDS_INODELOCK_UPDATE, MF_MDC_CANCEL_FID1);
-	if (rc != 0)
-		return rc;
-
-	rc = md_link(tgt->ltd_exp, op_data, request);
-
-	return rc;
-}
-
-static int lmv_rename(struct obd_export *exp, struct md_op_data *op_data,
-		      const char *old, int oldlen, const char *new, int newlen,
-		      struct ptlrpc_request **request)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *src_tgt;
-	struct lmv_tgt_desc     *tgt_tgt;
-	int			rc;
-
-	LASSERT(oldlen != 0);
-
-	CDEBUG(D_INODE, "RENAME %*s in "DFID" to %*s in "DFID"\n",
-	       oldlen, old, PFID(&op_data->op_fid1),
-	       newlen, new, PFID(&op_data->op_fid2));
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
-	op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
-	op_data->op_cap = cfs_curproc_cap_pack();
-	src_tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
-	if (IS_ERR(src_tgt))
-		return PTR_ERR(src_tgt);
-
-	tgt_tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid2);
-	if (IS_ERR(tgt_tgt))
-		return PTR_ERR(tgt_tgt);
-	/*
-	 * LOOKUP lock on src child (fid3) should also be cancelled for
-	 * src_tgt in mdc_rename.
-	 */
-	op_data->op_flags |= MF_MDC_CANCEL_FID1 | MF_MDC_CANCEL_FID3;
-
-	/*
-	 * Cancel UPDATE locks on tgt parent (fid2), tgt_tgt is its
-	 * own target.
-	 */
-	rc = lmv_early_cancel(exp, op_data, src_tgt->ltd_idx,
-			      LCK_EX, MDS_INODELOCK_UPDATE,
-			      MF_MDC_CANCEL_FID2);
-
-	/*
-	 * Cancel LOOKUP locks on tgt child (fid4) for parent tgt_tgt.
-	 */
-	if (rc == 0) {
-		rc = lmv_early_cancel(exp, op_data, src_tgt->ltd_idx,
-				      LCK_EX, MDS_INODELOCK_LOOKUP,
-				      MF_MDC_CANCEL_FID4);
-	}
-
-	/*
-	 * Cancel all the locks on tgt child (fid4).
-	 */
-	if (rc == 0)
-		rc = lmv_early_cancel(exp, op_data, src_tgt->ltd_idx,
-				      LCK_EX, MDS_INODELOCK_FULL,
-				      MF_MDC_CANCEL_FID4);
-
-	if (rc == 0)
-		rc = md_rename(src_tgt->ltd_exp, op_data, old, oldlen,
-			       new, newlen, request);
-	return rc;
-}
-
-static int lmv_setattr(struct obd_export *exp, struct md_op_data *op_data,
-		       void *ea, int ealen, void *ea2, int ea2len,
-		       struct ptlrpc_request **request,
-		       struct md_open_data **mod)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INODE, "SETATTR for "DFID", valid 0x%x\n",
-	       PFID(&op_data->op_fid1), op_data->op_attr.ia_valid);
-
-	op_data->op_flags |= MF_MDC_CANCEL_FID1;
-	tgt = lmv_find_target(lmv, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_setattr(tgt->ltd_exp, op_data, ea, ealen, ea2,
-			ea2len, request, mod);
-
-	return rc;
-}
-
-static int lmv_sync(struct obd_export *exp, const struct lu_fid *fid,
-		    struct obd_capa *oc, struct ptlrpc_request **request)
-{
-	struct obd_device	 *obd = exp->exp_obd;
-	struct lmv_obd	    *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc       *tgt;
-	int			rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_sync(tgt->ltd_exp, fid, oc, request);
-	return rc;
-}
-
-/*
- * Adjust a set of pages, each page containing an array of lu_dirpages,
- * so that each page can be used as a single logical lu_dirpage.
- *
- * A lu_dirpage is laid out as follows, where s = ldp_hash_start,
- * e = ldp_hash_end, f = ldp_flags, p = padding, and each "ent" is a
- * struct lu_dirent.  It has size up to LU_PAGE_SIZE. The ldp_hash_end
- * value is used as a cookie to request the next lu_dirpage in a
- * directory listing that spans multiple pages (two in this example):
- *   ________
- *  |	|
- * .|--------v-------   -----.
- * |s|e|f|p|ent|ent| ... |ent|
- * '--|--------------   -----'   Each CFS_PAGE contains a single
- *    '------.		   lu_dirpage.
- * .---------v-------   -----.
- * |s|e|f|p|ent| 0 | ... | 0 |
- * '-----------------   -----'
- *
- * However, on hosts where the native VM page size (PAGE_CACHE_SIZE) is
- * larger than LU_PAGE_SIZE, a single host page may contain multiple
- * lu_dirpages. After reading the lu_dirpages from the MDS, the
- * ldp_hash_end of the first lu_dirpage refers to the one immediately
- * after it in the same CFS_PAGE (arrows simplified for brevity, but
- * in general e0==s1, e1==s2, etc.):
- *
- * .--------------------   -----.
- * |s0|e0|f0|p|ent|ent| ... |ent|
- * |---v----------------   -----|
- * |s1|e1|f1|p|ent|ent| ... |ent|
- * |---v----------------   -----|  Here, each CFS_PAGE contains
- *	     ...		 multiple lu_dirpages.
- * |---v----------------   -----|
- * |s'|e'|f'|p|ent|ent| ... |ent|
- * '---|----------------   -----'
- *     v
- * .----------------------------.
- * |	next CFS_PAGE       |
- *
- * This structure is transformed into a single logical lu_dirpage as follows:
- *
- * - Replace e0 with e' so the request for the next lu_dirpage gets the page
- *   labeled 'next CFS_PAGE'.
- *
- * - Copy the LDF_COLLIDE flag from f' to f0 to correctly reflect whether
- *   a hash collision with the next page exists.
- *
- * - Adjust the lde_reclen of the ending entry of each lu_dirpage to span
- *   to the first entry of the next lu_dirpage.
- */
-#if PAGE_CACHE_SIZE > LU_PAGE_SIZE
-static void lmv_adjust_dirpages(struct page **pages, int ncfspgs, int nlupgs)
-{
-	int i;
-
-	for (i = 0; i < ncfspgs; i++) {
-		struct lu_dirpage	*dp = kmap(pages[i]);
-		struct lu_dirpage	*first = dp;
-		struct lu_dirent	*end_dirent = NULL;
-		struct lu_dirent	*ent;
-		__u64			hash_end = dp->ldp_hash_end;
-		__u32			flags = dp->ldp_flags;
-
-		while (--nlupgs > 0) {
-			ent = lu_dirent_start(dp);
-			for (end_dirent = ent; ent != NULL;
-			     end_dirent = ent, ent = lu_dirent_next(ent));
-
-			/* Advance dp to next lu_dirpage. */
-			dp = (struct lu_dirpage *)((char *)dp + LU_PAGE_SIZE);
-
-			/* Check if we've reached the end of the CFS_PAGE. */
-			if (!((unsigned long)dp & ~CFS_PAGE_MASK))
-				break;
-
-			/* Save the hash and flags of this lu_dirpage. */
-			hash_end = dp->ldp_hash_end;
-			flags = dp->ldp_flags;
-
-			/* Check if lu_dirpage contains no entries. */
-			if (!end_dirent)
-				break;
-
-			/* Enlarge the end entry lde_reclen from 0 to
-			 * first entry of next lu_dirpage. */
-			LASSERT(le16_to_cpu(end_dirent->lde_reclen) == 0);
-			end_dirent->lde_reclen =
-				cpu_to_le16((char *)(dp->ldp_entries) -
-					    (char *)end_dirent);
-		}
-
-		first->ldp_hash_end = hash_end;
-		first->ldp_flags &= ~cpu_to_le32(LDF_COLLIDE);
-		first->ldp_flags |= flags & cpu_to_le32(LDF_COLLIDE);
-
-		kunmap(pages[i]);
-	}
-	LASSERTF(nlupgs == 0, "left = %d", nlupgs);
-}
-#else
-#define lmv_adjust_dirpages(pages, ncfspgs, nlupgs) do {} while (0)
-#endif	/* PAGE_CACHE_SIZE > LU_PAGE_SIZE */
-
-static int lmv_readpage(struct obd_export *exp, struct md_op_data *op_data,
-			struct page **pages, struct ptlrpc_request **request)
-{
-	struct obd_device	*obd = exp->exp_obd;
-	struct lmv_obd		*lmv = &obd->u.lmv;
-	__u64			offset = op_data->op_offset;
-	int			rc;
-	int			ncfspgs; /* pages read in PAGE_CACHE_SIZE */
-	int			nlupgs; /* pages read in LU_PAGE_SIZE */
-	struct lmv_tgt_desc	*tgt;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INODE, "READPAGE at %#llx from "DFID"\n",
-	       offset, PFID(&op_data->op_fid1));
-
-	tgt = lmv_find_target(lmv, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_readpage(tgt->ltd_exp, op_data, pages, request);
-	if (rc != 0)
-		return rc;
-
-	ncfspgs = ((*request)->rq_bulk->bd_nob_transferred + PAGE_CACHE_SIZE - 1)
-		 >> PAGE_CACHE_SHIFT;
-	nlupgs = (*request)->rq_bulk->bd_nob_transferred >> LU_PAGE_SHIFT;
-	LASSERT(!((*request)->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK));
-	LASSERT(ncfspgs > 0 && ncfspgs <= op_data->op_npages);
-
-	CDEBUG(D_INODE, "read %d(%d)/%d pages\n", ncfspgs, nlupgs,
-	       op_data->op_npages);
-
-	lmv_adjust_dirpages(pages, ncfspgs, nlupgs);
-
-	return rc;
-}
-
-static int lmv_unlink(struct obd_export *exp, struct md_op_data *op_data,
-		      struct ptlrpc_request **request)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt = NULL;
-	struct mdt_body		*body;
-	int		     rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-retry:
-	/* Send unlink requests to the MDT where the child is located */
-	if (likely(!fid_is_zero(&op_data->op_fid2)))
-		tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid2);
-	else
-		tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	op_data->op_fsuid = from_kuid(&init_user_ns, current_fsuid());
-	op_data->op_fsgid = from_kgid(&init_user_ns, current_fsgid());
-	op_data->op_cap = cfs_curproc_cap_pack();
-
-	/*
-	 * If child's fid is given, cancel unused locks for it if it is from
-	 * another export than parent.
-	 *
-	 * LOOKUP lock for child (fid3) should also be cancelled on parent
-	 * tgt_tgt in mdc_unlink().
-	 */
-	op_data->op_flags |= MF_MDC_CANCEL_FID1 | MF_MDC_CANCEL_FID3;
-
-	/*
-	 * Cancel FULL locks on child (fid3).
-	 */
-	rc = lmv_early_cancel(exp, op_data, tgt->ltd_idx, LCK_EX,
-			      MDS_INODELOCK_FULL, MF_MDC_CANCEL_FID3);
-
-	if (rc != 0)
-		return rc;
-
-	CDEBUG(D_INODE, "unlink with fid="DFID"/"DFID" -> mds #%d\n",
-	       PFID(&op_data->op_fid1), PFID(&op_data->op_fid2), tgt->ltd_idx);
-
-	rc = md_unlink(tgt->ltd_exp, op_data, request);
-	if (rc != 0 && rc != -EREMOTE)
-		return rc;
-
-	body = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL)
-		return -EPROTO;
-
-	/* Not cross-ref case, just get out of here. */
-	if (likely(!(body->valid & OBD_MD_MDS)))
-		return 0;
-
-	CDEBUG(D_INODE, "%s: try unlink to another MDT for "DFID"\n",
-	       exp->exp_obd->obd_name, PFID(&body->fid1));
-
-	/* This is a remote object, try remote MDT, Note: it may
-	 * try more than 1 time here, Considering following case
-	 * /mnt/lustre is root on MDT0, remote1 is on MDT1
-	 * 1. Initially A does not know where remote1 is, it send
-	 *    unlink RPC to MDT0, MDT0 return -EREMOTE, it will
-	 *    resend unlink RPC to MDT1 (retry 1st time).
-	 *
-	 * 2. During the unlink RPC in flight,
-	 *    client B mv /mnt/lustre/remote1 /mnt/lustre/remote2
-	 *    and create new remote1, but on MDT0
-	 *
-	 * 3. MDT1 get unlink RPC(from A), then do remote lock on
-	 *    /mnt/lustre, then lookup get fid of remote1, and find
-	 *    it is remote dir again, and replay -EREMOTE again.
-	 *
-	 * 4. Then A will resend unlink RPC to MDT0. (retry 2nd times).
-	 *
-	 * In theory, it might try unlimited time here, but it should
-	 * be very rare case.  */
-	op_data->op_fid2 = body->fid1;
-	ptlrpc_req_finished(*request);
-	*request = NULL;
-
-	goto retry;
-}
-
-static int lmv_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
-{
-	struct lmv_obd *lmv = &obd->u.lmv;
-
-	switch (stage) {
-	case OBD_CLEANUP_EARLY:
-		/* XXX: here should be calling obd_precleanup() down to
-		 * stack. */
-		break;
-	case OBD_CLEANUP_EXPORTS:
-		fld_client_debugfs_fini(&lmv->lmv_fld);
-		lprocfs_obd_cleanup(obd);
-		break;
-	default:
-		break;
-	}
-	return 0;
-}
-
-static int lmv_get_info(const struct lu_env *env, struct obd_export *exp,
-			__u32 keylen, void *key, __u32 *vallen, void *val,
-			struct lov_stripe_md *lsm)
-{
-	struct obd_device       *obd;
-	struct lmv_obd	  *lmv;
-	int		      rc = 0;
-
-	obd = class_exp2obd(exp);
-	if (obd == NULL) {
-		CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
-		       exp->exp_handle.h_cookie);
-		return -EINVAL;
-	}
-
-	lmv = &obd->u.lmv;
-	if (keylen >= strlen("remote_flag") && !strcmp(key, "remote_flag")) {
-		struct lmv_tgt_desc *tgt;
-		int i;
-
-		rc = lmv_check_connect(obd);
-		if (rc)
-			return rc;
-
-		LASSERT(*vallen == sizeof(__u32));
-		for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-			tgt = lmv->tgts[i];
-			/*
-			 * All tgts should be connected when this gets called.
-			 */
-			if (tgt == NULL || tgt->ltd_exp == NULL)
-				continue;
-
-			if (!obd_get_info(env, tgt->ltd_exp, keylen, key,
-					  vallen, val, NULL))
-				return 0;
-		}
-		return -EINVAL;
-	} else if (KEY_IS(KEY_MAX_EASIZE) ||
-		   KEY_IS(KEY_DEFAULT_EASIZE) ||
-		   KEY_IS(KEY_MAX_COOKIESIZE) ||
-		   KEY_IS(KEY_DEFAULT_COOKIESIZE) ||
-		   KEY_IS(KEY_CONN_DATA)) {
-		rc = lmv_check_connect(obd);
-		if (rc)
-			return rc;
-
-		/*
-		 * Forwarding this request to first MDS, it should know LOV
-		 * desc.
-		 */
-		rc = obd_get_info(env, lmv->tgts[0]->ltd_exp, keylen, key,
-				  vallen, val, NULL);
-		if (!rc && KEY_IS(KEY_CONN_DATA))
-			exp->exp_connect_data = *(struct obd_connect_data *)val;
-		return rc;
-	} else if (KEY_IS(KEY_TGT_COUNT)) {
-		*((int *)val) = lmv->desc.ld_tgt_count;
-		return 0;
-	}
-
-	CDEBUG(D_IOCTL, "Invalid key\n");
-	return -EINVAL;
-}
-
-static int lmv_set_info_async(const struct lu_env *env, struct obd_export *exp,
-			      u32 keylen, void *key, u32 vallen,
-			      void *val, struct ptlrpc_request_set *set)
-{
-	struct lmv_tgt_desc    *tgt;
-	struct obd_device      *obd;
-	struct lmv_obd	 *lmv;
-	int rc = 0;
-
-	obd = class_exp2obd(exp);
-	if (obd == NULL) {
-		CDEBUG(D_IOCTL, "Invalid client cookie %#llx\n",
-		       exp->exp_handle.h_cookie);
-		return -EINVAL;
-	}
-	lmv = &obd->u.lmv;
-
-	if (KEY_IS(KEY_READ_ONLY) || KEY_IS(KEY_FLUSH_CTX)) {
-		int i, err = 0;
-
-		for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-			tgt = lmv->tgts[i];
-
-			if (tgt == NULL || tgt->ltd_exp == NULL)
-				continue;
-
-			err = obd_set_info_async(env, tgt->ltd_exp,
-						 keylen, key, vallen, val, set);
-			if (err && rc == 0)
-				rc = err;
-		}
-
-		return rc;
-	}
-
-	return -EINVAL;
-}
-
-static int lmv_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
-		      struct lov_stripe_md *lsm)
-{
-	struct obd_device	 *obd = class_exp2obd(exp);
-	struct lmv_obd	    *lmv = &obd->u.lmv;
-	struct lmv_stripe_md      *meap;
-	struct lmv_stripe_md      *lsmp;
-	int			mea_size;
-	int			i;
-
-	mea_size = lmv_get_easize(lmv);
-	if (!lmmp)
-		return mea_size;
-
-	if (*lmmp && !lsm) {
-		kvfree(*lmmp);
-		*lmmp = NULL;
-		return 0;
-	}
-
-	if (*lmmp == NULL) {
-		*lmmp = libcfs_kvzalloc(mea_size, GFP_NOFS);
-		if (*lmmp == NULL)
-			return -ENOMEM;
-	}
-
-	if (!lsm)
-		return mea_size;
-
-	lsmp = (struct lmv_stripe_md *)lsm;
-	meap = (struct lmv_stripe_md *)*lmmp;
-
-	if (lsmp->mea_magic != MEA_MAGIC_LAST_CHAR &&
-	    lsmp->mea_magic != MEA_MAGIC_ALL_CHARS)
-		return -EINVAL;
-
-	meap->mea_magic = cpu_to_le32(lsmp->mea_magic);
-	meap->mea_count = cpu_to_le32(lsmp->mea_count);
-	meap->mea_master = cpu_to_le32(lsmp->mea_master);
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		meap->mea_ids[i] = lsmp->mea_ids[i];
-		fid_cpu_to_le(&meap->mea_ids[i], &lsmp->mea_ids[i]);
-	}
-
-	return mea_size;
-}
-
-static int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
-			struct lov_mds_md *lmm, int lmm_size)
-{
-	struct obd_device	  *obd = class_exp2obd(exp);
-	struct lmv_stripe_md      **tmea = (struct lmv_stripe_md **)lsmp;
-	struct lmv_stripe_md       *mea = (struct lmv_stripe_md *)lmm;
-	struct lmv_obd	     *lmv = &obd->u.lmv;
-	int			 mea_size;
-	int			 i;
-	__u32		       magic;
-
-	mea_size = lmv_get_easize(lmv);
-	if (lsmp == NULL)
-		return mea_size;
-
-	if (*lsmp != NULL && lmm == NULL) {
-		kvfree(*tmea);
-		*lsmp = NULL;
-		return 0;
-	}
-
-	LASSERT(mea_size == lmm_size);
-
-	*tmea = libcfs_kvzalloc(mea_size, GFP_NOFS);
-	if (*tmea == NULL)
-		return -ENOMEM;
-
-	if (!lmm)
-		return mea_size;
-
-	if (mea->mea_magic == MEA_MAGIC_LAST_CHAR ||
-	    mea->mea_magic == MEA_MAGIC_ALL_CHARS ||
-	    mea->mea_magic == MEA_MAGIC_HASH_SEGMENT) {
-		magic = le32_to_cpu(mea->mea_magic);
-	} else {
-		/*
-		 * Old mea is not handled here.
-		 */
-		CERROR("Old not supportable EA is found\n");
-		LBUG();
-	}
-
-	(*tmea)->mea_magic = magic;
-	(*tmea)->mea_count = le32_to_cpu(mea->mea_count);
-	(*tmea)->mea_master = le32_to_cpu(mea->mea_master);
-
-	for (i = 0; i < (*tmea)->mea_count; i++) {
-		(*tmea)->mea_ids[i] = mea->mea_ids[i];
-		fid_le_to_cpu(&(*tmea)->mea_ids[i], &(*tmea)->mea_ids[i]);
-	}
-	return mea_size;
-}
-
-static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
-			     ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			     ldlm_cancel_flags_t flags, void *opaque)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	int		      rc = 0;
-	int		      err;
-	int		      i;
-
-	LASSERT(fid != NULL);
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL || lmv->tgts[i]->ltd_exp == NULL ||
-		    lmv->tgts[i]->ltd_active == 0)
-			continue;
-
-		err = md_cancel_unused(lmv->tgts[i]->ltd_exp, fid,
-				       policy, mode, flags, opaque);
-		if (!rc)
-			rc = err;
-	}
-	return rc;
-}
-
-static int lmv_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data,
-			     __u64 *bits)
-{
-	struct lmv_obd	  *lmv = &exp->exp_obd->u.lmv;
-	int		      rc;
-
-	rc =  md_set_lock_data(lmv->tgts[0]->ltd_exp, lockh, data, bits);
-	return rc;
-}
-
-static ldlm_mode_t lmv_lock_match(struct obd_export *exp, __u64 flags,
-				  const struct lu_fid *fid, ldlm_type_t type,
-				  ldlm_policy_data_t *policy, ldlm_mode_t mode,
-				  struct lustre_handle *lockh)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	ldlm_mode_t	      rc;
-	int		      i;
-
-	CDEBUG(D_INODE, "Lock match for "DFID"\n", PFID(fid));
-
-	/*
-	 * With CMD every object can have two locks in different namespaces:
-	 * lookup lock in space of mds storing direntry and update/open lock in
-	 * space of mds storing inode. Thus we check all targets, not only that
-	 * one fid was created in.
-	 */
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		if (lmv->tgts[i] == NULL ||
-		    lmv->tgts[i]->ltd_exp == NULL ||
-		    lmv->tgts[i]->ltd_active == 0)
-			continue;
-
-		rc = md_lock_match(lmv->tgts[i]->ltd_exp, flags, fid,
-				   type, policy, mode, lockh);
-		if (rc)
-			return rc;
-	}
-
-	return 0;
-}
-
-static int lmv_get_lustre_md(struct obd_export *exp,
-			     struct ptlrpc_request *req,
-			     struct obd_export *dt_exp,
-			     struct obd_export *md_exp,
-			     struct lustre_md *md)
-{
-	struct lmv_obd	  *lmv = &exp->exp_obd->u.lmv;
-
-	return md_get_lustre_md(lmv->tgts[0]->ltd_exp, req, dt_exp, md_exp, md);
-}
-
-static int lmv_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-
-	if (md->mea)
-		obd_free_memmd(exp, (void *)&md->mea);
-	return md_free_lustre_md(lmv->tgts[0]->ltd_exp, md);
-}
-
-static int lmv_set_open_replay_data(struct obd_export *exp,
-				    struct obd_client_handle *och,
-				    struct lookup_intent *it)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-
-	tgt = lmv_find_target(lmv, &och->och_fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	return md_set_open_replay_data(tgt->ltd_exp, och, it);
-}
-
-static int lmv_clear_open_replay_data(struct obd_export *exp,
-				      struct obd_client_handle *och)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-
-	tgt = lmv_find_target(lmv, &och->och_fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	return md_clear_open_replay_data(tgt->ltd_exp, och);
-}
-
-static int lmv_get_remote_perm(struct obd_export *exp,
-			       const struct lu_fid *fid,
-			       struct obd_capa *oc, __u32 suppgid,
-			       struct ptlrpc_request **request)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_get_remote_perm(tgt->ltd_exp, fid, oc, suppgid, request);
-	return rc;
-}
-
-static int lmv_renew_capa(struct obd_export *exp, struct obd_capa *oc,
-			  renew_capa_cb_t cb)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, &oc->c_capa.lc_fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_renew_capa(tgt->ltd_exp, oc, cb);
-	return rc;
-}
-
-static int lmv_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
-			   const struct req_msg_field *field,
-			   struct obd_capa **oc)
-{
-	struct lmv_obd *lmv = &exp->exp_obd->u.lmv;
-
-	return md_unpack_capa(lmv->tgts[0]->ltd_exp, req, field, oc);
-}
-
-static int lmv_intent_getattr_async(struct obd_export *exp,
-				    struct md_enqueue_info *minfo,
-				    struct ldlm_enqueue_info *einfo)
-{
-	struct md_op_data       *op_data = &minfo->mi_data;
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt = NULL;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, &op_data->op_fid1);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_intent_getattr_async(tgt->ltd_exp, minfo, einfo);
-	return rc;
-}
-
-static int lmv_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
-			       struct lu_fid *fid, __u64 *bits)
-{
-	struct obd_device       *obd = exp->exp_obd;
-	struct lmv_obd	  *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc     *tgt;
-	int		      rc;
-
-	rc = lmv_check_connect(obd);
-	if (rc)
-		return rc;
-
-	tgt = lmv_find_target(lmv, fid);
-	if (IS_ERR(tgt))
-		return PTR_ERR(tgt);
-
-	rc = md_revalidate_lock(tgt->ltd_exp, it, fid, bits);
-	return rc;
-}
-
-/**
- * For lmv, only need to send request to master MDT, and the master MDT will
- * process with other slave MDTs. The only exception is Q_GETOQUOTA for which
- * we directly fetch data from the slave MDTs.
- */
-static int lmv_quotactl(struct obd_device *unused, struct obd_export *exp,
-			struct obd_quotactl *oqctl)
-{
-	struct obd_device   *obd = class_exp2obd(exp);
-	struct lmv_obd      *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc *tgt = lmv->tgts[0];
-	int		  rc = 0, i;
-	__u64		curspace, curinodes;
-
-	if (!lmv->desc.ld_tgt_count || !tgt->ltd_active) {
-		CERROR("master lmv inactive\n");
-		return -EIO;
-	}
-
-	if (oqctl->qc_cmd != Q_GETOQUOTA) {
-		rc = obd_quotactl(tgt->ltd_exp, oqctl);
-		return rc;
-	}
-
-	curspace = curinodes = 0;
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		int err;
-		tgt = lmv->tgts[i];
-
-		if (tgt == NULL || tgt->ltd_exp == NULL || tgt->ltd_active == 0)
-			continue;
-		if (!tgt->ltd_active) {
-			CDEBUG(D_HA, "mdt %d is inactive.\n", i);
-			continue;
-		}
-
-		err = obd_quotactl(tgt->ltd_exp, oqctl);
-		if (err) {
-			CERROR("getquota on mdt %d failed. %d\n", i, err);
-			if (!rc)
-				rc = err;
-		} else {
-			curspace += oqctl->qc_dqblk.dqb_curspace;
-			curinodes += oqctl->qc_dqblk.dqb_curinodes;
-		}
-	}
-	oqctl->qc_dqblk.dqb_curspace = curspace;
-	oqctl->qc_dqblk.dqb_curinodes = curinodes;
-
-	return rc;
-}
-
-static int lmv_quotacheck(struct obd_device *unused, struct obd_export *exp,
-			  struct obd_quotactl *oqctl)
-{
-	struct obd_device   *obd = class_exp2obd(exp);
-	struct lmv_obd      *lmv = &obd->u.lmv;
-	struct lmv_tgt_desc *tgt;
-	int		  i, rc = 0;
-
-	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
-		int err;
-		tgt = lmv->tgts[i];
-		if (tgt == NULL || tgt->ltd_exp == NULL || !tgt->ltd_active) {
-			CERROR("lmv idx %d inactive\n", i);
-			return -EIO;
-		}
-
-		err = obd_quotacheck(tgt->ltd_exp, oqctl);
-		if (err && !rc)
-			rc = err;
-	}
-
-	return rc;
-}
-
-static struct obd_ops lmv_obd_ops = {
-	.o_owner		= THIS_MODULE,
-	.o_setup		= lmv_setup,
-	.o_cleanup	      = lmv_cleanup,
-	.o_precleanup	   = lmv_precleanup,
-	.o_process_config       = lmv_process_config,
-	.o_connect	      = lmv_connect,
-	.o_disconnect	   = lmv_disconnect,
-	.o_statfs	       = lmv_statfs,
-	.o_get_info	     = lmv_get_info,
-	.o_set_info_async       = lmv_set_info_async,
-	.o_packmd	       = lmv_packmd,
-	.o_unpackmd	     = lmv_unpackmd,
-	.o_notify	       = lmv_notify,
-	.o_get_uuid	     = lmv_get_uuid,
-	.o_iocontrol	    = lmv_iocontrol,
-	.o_quotacheck	   = lmv_quotacheck,
-	.o_quotactl	     = lmv_quotactl
-};
-
-static struct md_ops lmv_md_ops = {
-	.m_getstatus	    = lmv_getstatus,
-	.m_null_inode		= lmv_null_inode,
-	.m_find_cbdata	  = lmv_find_cbdata,
-	.m_close		= lmv_close,
-	.m_create	       = lmv_create,
-	.m_done_writing	 = lmv_done_writing,
-	.m_enqueue	      = lmv_enqueue,
-	.m_getattr	      = lmv_getattr,
-	.m_getxattr	     = lmv_getxattr,
-	.m_getattr_name	 = lmv_getattr_name,
-	.m_intent_lock	  = lmv_intent_lock,
-	.m_link		 = lmv_link,
-	.m_rename	       = lmv_rename,
-	.m_setattr	      = lmv_setattr,
-	.m_setxattr	     = lmv_setxattr,
-	.m_sync		 = lmv_sync,
-	.m_readpage	     = lmv_readpage,
-	.m_unlink	       = lmv_unlink,
-	.m_init_ea_size	 = lmv_init_ea_size,
-	.m_cancel_unused	= lmv_cancel_unused,
-	.m_set_lock_data	= lmv_set_lock_data,
-	.m_lock_match	   = lmv_lock_match,
-	.m_get_lustre_md	= lmv_get_lustre_md,
-	.m_free_lustre_md       = lmv_free_lustre_md,
-	.m_set_open_replay_data = lmv_set_open_replay_data,
-	.m_clear_open_replay_data = lmv_clear_open_replay_data,
-	.m_renew_capa	   = lmv_renew_capa,
-	.m_unpack_capa	  = lmv_unpack_capa,
-	.m_get_remote_perm      = lmv_get_remote_perm,
-	.m_intent_getattr_async = lmv_intent_getattr_async,
-	.m_revalidate_lock      = lmv_revalidate_lock
-};
-
-static int __init lmv_init(void)
-{
-	struct lprocfs_static_vars lvars;
-	int			rc;
-
-	lprocfs_lmv_init_vars(&lvars);
-
-	rc = class_register_type(&lmv_obd_ops, &lmv_md_ops,
-				 LUSTRE_LMV_NAME, NULL);
-	return rc;
-}
-
-static void lmv_exit(void)
-{
-	class_unregister_type(LUSTRE_LMV_NAME);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Logical Metadata Volume OBD driver");
-MODULE_LICENSE("GPL");
-
-module_init(lmv_init);
-module_exit(lmv_exit);
diff --git a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
deleted file mode 100644
index 311fc1b70c4d..000000000000
--- a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/seq_file.h>
-#include <linux/statfs.h>
-#include "../include/lprocfs_status.h"
-#include "../include/obd_class.h"
-#include "lmv_internal.h"
-
-static ssize_t numobd_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct lmv_desc *desc;
-
-	desc = &dev->u.lmv.desc;
-	return sprintf(buf, "%u\n", desc->ld_tgt_count);
-}
-LUSTRE_RO_ATTR(numobd);
-
-static const char *placement_name[] = {
-	[PLACEMENT_CHAR_POLICY] = "CHAR",
-	[PLACEMENT_NID_POLICY]  = "NID",
-	[PLACEMENT_INVAL_POLICY]  = "INVAL"
-};
-
-static enum placement_policy placement_name2policy(char *name, int len)
-{
-	int		     i;
-
-	for (i = 0; i < PLACEMENT_MAX_POLICY; i++) {
-		if (!strncmp(placement_name[i], name, len))
-			return i;
-	}
-	return PLACEMENT_INVAL_POLICY;
-}
-
-static const char *placement_policy2name(enum placement_policy placement)
-{
-	LASSERT(placement < PLACEMENT_MAX_POLICY);
-	return placement_name[placement];
-}
-
-static ssize_t placement_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct lmv_obd *lmv;
-
-	lmv = &dev->u.lmv;
-	return sprintf(buf, "%s\n", placement_policy2name(lmv->lmv_placement));
-}
-
-#define MAX_POLICY_STRING_SIZE 64
-
-static ssize_t placement_store(struct kobject *kobj, struct attribute *attr,
-			       const char *buffer,
-			       size_t count)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	char dummy[MAX_POLICY_STRING_SIZE + 1];
-	enum placement_policy policy;
-	struct lmv_obd *lmv = &dev->u.lmv;
-
-	memcpy(dummy, buffer, MAX_POLICY_STRING_SIZE);
-
-	if (count > MAX_POLICY_STRING_SIZE)
-		count = MAX_POLICY_STRING_SIZE;
-
-	if (dummy[count - 1] == '\n')
-		count--;
-	dummy[count] = '\0';
-
-	policy = placement_name2policy(dummy, count);
-	if (policy != PLACEMENT_INVAL_POLICY) {
-		spin_lock(&lmv->lmv_lock);
-		lmv->lmv_placement = policy;
-		spin_unlock(&lmv->lmv_lock);
-	} else {
-		return -EINVAL;
-	}
-	return count;
-}
-LUSTRE_RW_ATTR(placement);
-
-static ssize_t activeobd_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct lmv_desc *desc;
-
-	desc = &dev->u.lmv.desc;
-	return sprintf(buf, "%u\n", desc->ld_active_tgt_count);
-}
-LUSTRE_RO_ATTR(activeobd);
-
-static int lmv_desc_uuid_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *dev = (struct obd_device *)m->private;
-	struct lmv_obd	  *lmv;
-
-	LASSERT(dev != NULL);
-	lmv = &dev->u.lmv;
-	seq_printf(m, "%s\n", lmv->desc.ld_uuid.uuid);
-	return 0;
-}
-LPROC_SEQ_FOPS_RO(lmv_desc_uuid);
-
-static void *lmv_tgt_seq_start(struct seq_file *p, loff_t *pos)
-{
-	struct obd_device       *dev = p->private;
-	struct lmv_obd	  *lmv = &dev->u.lmv;
-	return (*pos >= lmv->desc.ld_tgt_count) ? NULL : lmv->tgts[*pos];
-}
-
-static void lmv_tgt_seq_stop(struct seq_file *p, void *v)
-{
-	return;
-}
-
-static void *lmv_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
-	struct obd_device       *dev = p->private;
-	struct lmv_obd	  *lmv = &dev->u.lmv;
-	++*pos;
-	return (*pos >= lmv->desc.ld_tgt_count) ? NULL : lmv->tgts[*pos];
-}
-
-static int lmv_tgt_seq_show(struct seq_file *p, void *v)
-{
-	struct lmv_tgt_desc     *tgt = v;
-
-	if (tgt == NULL)
-		return 0;
-	seq_printf(p, "%d: %s %sACTIVE\n",
-		   tgt->ltd_idx, tgt->ltd_uuid.uuid,
-		   tgt->ltd_active ? "" : "IN");
-	return 0;
-}
-
-static const struct seq_operations lmv_tgt_sops = {
-	.start		 = lmv_tgt_seq_start,
-	.stop		  = lmv_tgt_seq_stop,
-	.next		  = lmv_tgt_seq_next,
-	.show		  = lmv_tgt_seq_show,
-};
-
-static int lmv_target_seq_open(struct inode *inode, struct file *file)
-{
-	struct seq_file	 *seq;
-	int		     rc;
-
-	rc = seq_open(file, &lmv_tgt_sops);
-	if (rc)
-		return rc;
-
-	seq = file->private_data;
-	seq->private = inode->i_private;
-
-	return 0;
-}
-
-static struct lprocfs_vars lprocfs_lmv_obd_vars[] = {
-	{ "desc_uuid",	  &lmv_desc_uuid_fops,    NULL, 0 },
-	{ NULL }
-};
-
-struct file_operations lmv_proc_target_fops = {
-	.owner		= THIS_MODULE,
-	.open		 = lmv_target_seq_open,
-	.read		 = seq_read,
-	.llseek	       = seq_lseek,
-	.release	      = seq_release,
-};
-
-static struct attribute *lmv_attrs[] = {
-	&lustre_attr_activeobd.attr,
-	&lustre_attr_numobd.attr,
-	&lustre_attr_placement.attr,
-	NULL,
-};
-
-static struct attribute_group lmv_attr_group = {
-	.attrs = lmv_attrs,
-};
-
-void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars)
-{
-	lvars->sysfs_vars     = &lmv_attr_group;
-	lvars->obd_vars       = lprocfs_lmv_obd_vars;
-}
diff --git a/drivers/staging/lustre/lustre/lov/Makefile b/drivers/staging/lustre/lustre/lov/Makefile
deleted file mode 100644
index e4cc0db21014..000000000000
--- a/drivers/staging/lustre/lustre/lov/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += lov.o
-lov-y := lov_obd.o lov_pack.o lov_offset.o lov_merge.o \
-	 lov_request.o lov_ea.o lov_dev.o lov_object.o lov_page.o  \
-	 lov_lock.o lov_io.o lovsub_dev.o lovsub_object.o lovsub_page.o      \
-	 lovsub_lock.o lovsub_io.o lov_pool.o lproc_lov.o
diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
deleted file mode 100644
index 314ce8525aed..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
+++ /dev/null
@@ -1,839 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Internal interfaces of LOV layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Jinshan Xiong <jinshan.xiong@intel.com>
- */
-
-#ifndef LOV_CL_INTERNAL_H
-#define LOV_CL_INTERNAL_H
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd.h"
-#include "../include/cl_object.h"
-#include "lov_internal.h"
-
-/** \defgroup lov lov
- * Logical object volume layer. This layer implements data striping (raid0).
- *
- * At the lov layer top-entity (object, page, lock, io) is connected to one or
- * more sub-entities: top-object, representing a file is connected to a set of
- * sub-objects, each representing a stripe, file-level top-lock is connected
- * to a set of per-stripe sub-locks, top-page is connected to a (single)
- * sub-page, and a top-level IO is connected to a set of (potentially
- * concurrent) sub-IO's.
- *
- * Sub-object, sub-page, and sub-io have well-defined top-object and top-page
- * respectively, while a single sub-lock can be part of multiple top-locks.
- *
- * Reference counting models are different for different types of entities:
- *
- *     - top-object keeps a reference to its sub-objects, and destroys them
- *       when it is destroyed.
- *
- *     - top-page keeps a reference to its sub-page, and destroys it when it
- *       is destroyed.
- *
- *     - sub-lock keep a reference to its top-locks. Top-lock keeps a
- *       reference (and a hold, see cl_lock_hold()) on its sub-locks when it
- *       actively using them (that is, in cl_lock_state::CLS_QUEUING,
- *       cl_lock_state::CLS_ENQUEUED, cl_lock_state::CLS_HELD states). When
- *       moving into cl_lock_state::CLS_CACHED state, top-lock releases a
- *       hold. From this moment top-lock has only a 'weak' reference to its
- *       sub-locks. This reference is protected by top-lock
- *       cl_lock::cll_guard, and will be automatically cleared by the sub-lock
- *       when the latter is destroyed. When a sub-lock is canceled, a
- *       reference to it is removed from the top-lock array, and top-lock is
- *       moved into CLS_NEW state. It is guaranteed that all sub-locks exist
- *       while their top-lock is in CLS_HELD or CLS_CACHED states.
- *
- *     - IO's are not reference counted.
- *
- * To implement a connection between top and sub entities, lov layer is split
- * into two pieces: lov ("upper half"), and lovsub ("bottom half"), both
- * implementing full set of cl-interfaces. For example, top-object has vvp and
- * lov layers, and it's sub-object has lovsub and osc layers. lovsub layer is
- * used to track child-parent relationship.
- *
- * @{
- */
-
-struct lovsub_device;
-struct lovsub_object;
-struct lovsub_lock;
-
-enum lov_device_flags {
-	LOV_DEV_INITIALIZED = 1 << 0
-};
-
-/*
- * Upper half.
- */
-
-/**
- * Resources that are used in memory-cleaning path, and whose allocation
- * cannot fail even when memory is tight. They are preallocated in sufficient
- * quantities in lov_device::ld_emerg[], and access to them is serialized
- * lov_device::ld_mutex.
- */
-struct lov_device_emerg {
-	/**
-	 * Page list used to submit IO when memory is in pressure.
-	 */
-	struct cl_page_list emrg_page_list;
-	/**
-	 * sub-io's shared by all threads accessing this device when memory is
-	 * too low to allocate sub-io's dynamically.
-	 */
-	struct cl_io	emrg_subio;
-	/**
-	 * Environments used by sub-io's in
-	 * lov_device_emerg::emrg_subio.
-	 */
-	struct lu_env      *emrg_env;
-	/**
-	 * Refchecks for lov_device_emerg::emrg_env.
-	 *
-	 * \see cl_env_get()
-	 */
-	int		 emrg_refcheck;
-};
-
-struct lov_device {
-	/*
-	 * XXX Locking of lov-private data is missing.
-	 */
-	struct cl_device	  ld_cl;
-	struct lov_obd	   *ld_lov;
-	/** size of lov_device::ld_target[] array */
-	__u32		     ld_target_nr;
-	struct lovsub_device    **ld_target;
-	__u32		     ld_flags;
-
-	/** Emergency resources used in memory-cleansing paths. */
-	struct lov_device_emerg **ld_emrg;
-	/**
-	 * Serializes access to lov_device::ld_emrg in low-memory
-	 * conditions.
-	 */
-	struct mutex		  ld_mutex;
-};
-
-/**
- * Layout type.
- */
-enum lov_layout_type {
-	LLT_EMPTY,	/** empty file without body (mknod + truncate) */
-	LLT_RAID0,	/** striped file */
-	LLT_RELEASED,	/** file with no objects (data in HSM) */
-	LLT_NR
-};
-
-static inline char *llt2str(enum lov_layout_type llt)
-{
-	switch (llt) {
-	case LLT_EMPTY:
-		return "EMPTY";
-	case LLT_RAID0:
-		return "RAID0";
-	case LLT_RELEASED:
-		return "RELEASED";
-	case LLT_NR:
-		LBUG();
-	}
-	LBUG();
-	return "";
-}
-
-/**
- * lov-specific file state.
- *
- * lov object has particular layout type, determining how top-object is built
- * on top of sub-objects. Layout type can change dynamically. When this
- * happens, lov_object::lo_type_guard semaphore is taken in exclusive mode,
- * all state pertaining to the old layout type is destroyed, and new state is
- * constructed. All object methods take said semaphore in the shared mode,
- * providing serialization against transition between layout types.
- *
- * To avoid multiple `if' or `switch' statements, selecting behavior for the
- * current layout type, object methods perform double-dispatch, invoking
- * function corresponding to the current layout type.
- */
-struct lov_object {
-	struct cl_object       lo_cl;
-	/**
-	 * Serializes object operations with transitions between layout types.
-	 *
-	 * This semaphore is taken in shared mode by all object methods, and
-	 * is taken in exclusive mode when object type is changed.
-	 *
-	 * \see lov_object::lo_type
-	 */
-	struct rw_semaphore	lo_type_guard;
-	/**
-	 * Type of an object. Protected by lov_object::lo_type_guard.
-	 */
-	enum lov_layout_type	lo_type;
-	/**
-	 * True if layout is invalid. This bit is cleared when layout lock
-	 * is lost.
-	 */
-	bool			lo_layout_invalid;
-	/**
-	 * How many IOs are on going on this object. Layout can be changed
-	 * only if there is no active IO.
-	 */
-	atomic_t	       lo_active_ios;
-	/**
-	 * Waitq - wait for no one else is using lo_lsm
-	 */
-	wait_queue_head_t	       lo_waitq;
-	/**
-	 * Layout metadata. NULL if empty layout.
-	 */
-	struct lov_stripe_md  *lo_lsm;
-
-	union lov_layout_state {
-		struct lov_layout_raid0 {
-			unsigned	       lo_nr;
-			/**
-			 * When this is true, lov_object::lo_attr contains
-			 * valid up to date attributes for a top-level
-			 * object. This field is reset to 0 when attributes of
-			 * any sub-object change.
-			 */
-			int		       lo_attr_valid;
-			/**
-			 * Array of sub-objects. Allocated when top-object is
-			 * created (lov_init_raid0()).
-			 *
-			 * Top-object is a strict master of its sub-objects:
-			 * it is created before them, and outlives its
-			 * children (this later is necessary so that basic
-			 * functions like cl_object_top() always
-			 * work). Top-object keeps a reference on every
-			 * sub-object.
-			 *
-			 * When top-object is destroyed (lov_delete_raid0())
-			 * it releases its reference to a sub-object and waits
-			 * until the latter is finally destroyed.
-			 */
-			struct lovsub_object **lo_sub;
-			/**
-			 * protect lo_sub
-			 */
-			spinlock_t		lo_sub_lock;
-			/**
-			 * Cached object attribute, built from sub-object
-			 * attributes.
-			 */
-			struct cl_attr	 lo_attr;
-		} raid0;
-		struct lov_layout_state_empty {
-		} empty;
-		struct lov_layout_state_released {
-		} released;
-	} u;
-	/**
-	 * Thread that acquired lov_object::lo_type_guard in an exclusive
-	 * mode.
-	 */
-	struct task_struct	*lo_owner;
-};
-
-/**
- * Flags that top-lock can set on each of its sub-locks.
- */
-enum lov_sub_flags {
-	/** Top-lock acquired a hold (cl_lock_hold()) on a sub-lock. */
-	LSF_HELD = 1 << 0
-};
-
-/**
- * State lov_lock keeps for each sub-lock.
- */
-struct lov_lock_sub {
-	/** sub-lock itself */
-	struct lovsub_lock  *sub_lock;
-	/** An array of per-sub-lock flags, taken from enum lov_sub_flags */
-	unsigned	     sub_flags;
-	int		  sub_stripe;
-	struct cl_lock_descr sub_descr;
-	struct cl_lock_descr sub_got;
-};
-
-/**
- * lov-specific lock state.
- */
-struct lov_lock {
-	struct cl_lock_slice   lls_cl;
-	/** Number of sub-locks in this lock */
-	int		    lls_nr;
-	/**
-	 * Number of existing sub-locks.
-	 */
-	unsigned	       lls_nr_filled;
-	/**
-	 * Set when sub-lock was canceled, while top-lock was being
-	 * used, or unused.
-	 */
-	unsigned int	       lls_cancel_race:1;
-	/**
-	 * An array of sub-locks
-	 *
-	 * There are two issues with managing sub-locks:
-	 *
-	 *     - sub-locks are concurrently canceled, and
-	 *
-	 *     - sub-locks are shared with other top-locks.
-	 *
-	 * To manage cancellation, top-lock acquires a hold on a sublock
-	 * (lov_sublock_adopt()) when the latter is inserted into
-	 * lov_lock::lls_sub[]. This hold is released (lov_sublock_release())
-	 * when top-lock is going into CLS_CACHED state or destroyed. Hold
-	 * prevents sub-lock from cancellation.
-	 *
-	 * Sub-lock sharing means, among other things, that top-lock that is
-	 * in the process of creation (i.e., not yet inserted into lock list)
-	 * is already accessible to other threads once at least one of its
-	 * sub-locks is created, see lov_lock_sub_init().
-	 *
-	 * Sub-lock can be in one of the following states:
-	 *
-	 *     - doesn't exist, lov_lock::lls_sub[]::sub_lock == NULL. Such
-	 *       sub-lock was either never created (top-lock is in CLS_NEW
-	 *       state), or it was created, then canceled, then destroyed
-	 *       (lov_lock_unlink() cleared sub-lock pointer in the top-lock).
-	 *
-	 *     - sub-lock exists and is on
-	 *       hold. (lov_lock::lls_sub[]::sub_flags & LSF_HELD). This is a
-	 *       normal state of a sub-lock in CLS_HELD and CLS_CACHED states
-	 *       of a top-lock.
-	 *
-	 *     - sub-lock exists, but is not held by the top-lock. This
-	 *       happens after top-lock released a hold on sub-locks before
-	 *       going into cache (lov_lock_unuse()).
-	 *
-	 * \todo To support wide-striping, array has to be replaced with a set
-	 * of queues to avoid scanning.
-	 */
-	struct lov_lock_sub   *lls_sub;
-	/**
-	 * Original description with which lock was enqueued.
-	 */
-	struct cl_lock_descr   lls_orig;
-};
-
-struct lov_page {
-	struct cl_page_slice lps_cl;
-	int		  lps_invalid;
-};
-
-/*
- * Bottom half.
- */
-
-struct lovsub_device {
-	struct cl_device   acid_cl;
-	struct lov_device *acid_super;
-	int		acid_idx;
-	struct cl_device  *acid_next;
-};
-
-struct lovsub_object {
-	struct cl_object_header lso_header;
-	struct cl_object	lso_cl;
-	struct lov_object      *lso_super;
-	int		     lso_index;
-};
-
-/**
- * A link between a top-lock and a sub-lock. Separate data-structure is
- * necessary, because top-locks and sub-locks are in M:N relationship.
- *
- * \todo This can be optimized for a (by far) most frequent case of a single
- * top-lock per sub-lock.
- */
-struct lov_lock_link {
-	struct lov_lock *lll_super;
-	/** An index within parent lock. */
-	int	      lll_idx;
-	/**
-	 * A linkage into per sub-lock list of all corresponding top-locks,
-	 * hanging off lovsub_lock::lss_parents.
-	 */
-	struct list_head       lll_list;
-};
-
-/**
- * Lock state at lovsub layer.
- */
-struct lovsub_lock {
-	struct cl_lock_slice  lss_cl;
-	/**
-	 * List of top-locks that have given sub-lock as their part. Protected
-	 * by cl_lock::cll_guard mutex.
-	 */
-	struct list_head	    lss_parents;
-	/**
-	 * Top-lock that initiated current operation on this sub-lock. This is
-	 * only set during top-to-bottom lock operations like enqueue, and is
-	 * used to optimize state change notification. Protected by
-	 * cl_lock::cll_guard mutex.
-	 *
-	 * \see lovsub_lock_state_one().
-	 */
-	struct cl_lock       *lss_active;
-};
-
-/**
- * Describe the environment settings for sublocks.
- */
-struct lov_sublock_env {
-	const struct lu_env *lse_env;
-	struct cl_io	*lse_io;
-	struct lov_io_sub   *lse_sub;
-};
-
-struct lovsub_page {
-	struct cl_page_slice lsb_cl;
-};
-
-
-struct lov_thread_info {
-	struct cl_object_conf   lti_stripe_conf;
-	struct lu_fid	   lti_fid;
-	struct cl_lock_descr    lti_ldescr;
-	struct ost_lvb	  lti_lvb;
-	struct cl_2queue	lti_cl2q;
-	struct cl_lock_closure  lti_closure;
-	wait_queue_t	  lti_waiter;
-};
-
-/**
- * State that lov_io maintains for every sub-io.
- */
-struct lov_io_sub {
-	int		  sub_stripe;
-	/**
-	 * sub-io for a stripe. Ideally sub-io's can be stopped and resumed
-	 * independently, with lov acting as a scheduler to maximize overall
-	 * throughput.
-	 */
-	struct cl_io	*sub_io;
-	/**
-	 * Linkage into a list (hanging off lov_io::lis_active) of all
-	 * sub-io's active for the current IO iteration.
-	 */
-	struct list_head	   sub_linkage;
-	/**
-	 * true, iff cl_io_init() was successfully executed against
-	 * lov_io_sub::sub_io.
-	 */
-	int		  sub_io_initialized;
-	/**
-	 * True, iff lov_io_sub::sub_io and lov_io_sub::sub_env weren't
-	 * allocated, but borrowed from a per-device emergency pool.
-	 */
-	int		  sub_borrowed;
-	/**
-	 * environment, in which sub-io executes.
-	 */
-	struct lu_env *sub_env;
-	/**
-	 * environment's refcheck.
-	 *
-	 * \see cl_env_get()
-	 */
-	int		  sub_refcheck;
-	int		  sub_refcheck2;
-	int		  sub_reenter;
-	void		*sub_cookie;
-};
-
-/**
- * IO state private for LOV.
- */
-struct lov_io {
-	/** super-class */
-	struct cl_io_slice lis_cl;
-	/**
-	 * Pointer to the object slice. This is a duplicate of
-	 * lov_io::lis_cl::cis_object.
-	 */
-	struct lov_object *lis_object;
-	/**
-	 * Original end-of-io position for this IO, set by the upper layer as
-	 * cl_io::u::ci_rw::pos + cl_io::u::ci_rw::count. lov remembers this,
-	 * changes pos and count to fit IO into a single stripe and uses saved
-	 * value to determine when IO iterations have to stop.
-	 *
-	 * This is used only for CIT_READ and CIT_WRITE io's.
-	 */
-	loff_t	     lis_io_endpos;
-
-	/**
-	 * starting position within a file, for the current io loop iteration
-	 * (stripe), used by ci_io_loop().
-	 */
-	u64	    lis_pos;
-	/**
-	 * end position with in a file, for the current stripe io. This is
-	 * exclusive (i.e., next offset after last byte affected by io).
-	 */
-	u64	    lis_endpos;
-
-	int		lis_mem_frozen;
-	int		lis_stripe_count;
-	int		lis_active_subios;
-
-	/**
-	 * the index of ls_single_subio in ls_subios array
-	 */
-	int		lis_single_subio_index;
-	struct cl_io       lis_single_subio;
-
-	/**
-	 * size of ls_subios array, actually the highest stripe #
-	 */
-	int		lis_nr_subios;
-	struct lov_io_sub *lis_subs;
-	/**
-	 * List of active sub-io's.
-	 */
-	struct list_head	 lis_active;
-};
-
-struct lov_session {
-	struct lov_io	  ls_io;
-	struct lov_sublock_env ls_subenv;
-};
-
-/**
- * State of transfer for lov.
- */
-struct lov_req {
-	struct cl_req_slice lr_cl;
-};
-
-/**
- * State of transfer for lovsub.
- */
-struct lovsub_req {
-	struct cl_req_slice lsrq_cl;
-};
-
-extern struct lu_device_type lov_device_type;
-extern struct lu_device_type lovsub_device_type;
-
-extern struct lu_context_key lov_key;
-extern struct lu_context_key lov_session_key;
-
-extern struct kmem_cache *lov_lock_kmem;
-extern struct kmem_cache *lov_object_kmem;
-extern struct kmem_cache *lov_thread_kmem;
-extern struct kmem_cache *lov_session_kmem;
-extern struct kmem_cache *lov_req_kmem;
-
-extern struct kmem_cache *lovsub_lock_kmem;
-extern struct kmem_cache *lovsub_object_kmem;
-extern struct kmem_cache *lovsub_req_kmem;
-
-extern struct kmem_cache *lov_lock_link_kmem;
-
-int   lov_object_init(const struct lu_env *env, struct lu_object *obj,
-			   const struct lu_object_conf *conf);
-int   lovsub_object_init(const struct lu_env *env, struct lu_object *obj,
-			   const struct lu_object_conf *conf);
-int   lov_lock_init(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_lock *lock, const struct cl_io *io);
-int   lov_io_init(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_io *io);
-int   lovsub_lock_init(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_lock *lock, const struct cl_io *io);
-
-int   lov_lock_init_raid0(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_lock *lock, const struct cl_io *io);
-int   lov_lock_init_empty(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_lock *lock, const struct cl_io *io);
-int   lov_io_init_raid0(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_io *io);
-int   lov_io_init_empty(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_io *io);
-int   lov_io_init_released(const struct lu_env *env, struct cl_object *obj,
-			   struct cl_io *io);
-void  lov_lock_unlink(const struct lu_env *env, struct lov_lock_link *link,
-			   struct lovsub_lock *sub);
-
-struct lov_io_sub *lov_sub_get(const struct lu_env *env, struct lov_io *lio,
-			       int stripe);
-void  lov_sub_put(struct lov_io_sub *sub);
-int   lov_sublock_modify(const struct lu_env *env, struct lov_lock *lov,
-			   struct lovsub_lock *sublock,
-			   const struct cl_lock_descr *d, int idx);
-
-
-int   lov_page_init(const struct lu_env *env, struct cl_object *ob,
-			   struct cl_page *page, struct page *vmpage);
-int   lovsub_page_init(const struct lu_env *env, struct cl_object *ob,
-			   struct cl_page *page, struct page *vmpage);
-
-int   lov_page_init_empty(const struct lu_env *env,
-			   struct cl_object *obj,
-			   struct cl_page *page, struct page *vmpage);
-int   lov_page_init_raid0(const struct lu_env *env,
-			   struct cl_object *obj,
-			   struct cl_page *page, struct page *vmpage);
-struct lu_object *lov_object_alloc(const struct lu_env *env,
-				      const struct lu_object_header *hdr,
-				      struct lu_device *dev);
-struct lu_object *lovsub_object_alloc(const struct lu_env *env,
-				      const struct lu_object_header *hdr,
-				      struct lu_device *dev);
-
-struct lov_lock_link *lov_lock_link_find(const struct lu_env *env,
-					 struct lov_lock *lck,
-					 struct lovsub_lock *sub);
-struct lov_io_sub    *lov_page_subio(const struct lu_env *env,
-					 struct lov_io *lio,
-					 const struct cl_page_slice *slice);
-
-void lov_lsm_decref(struct lov_object *lov, struct lov_stripe_md *lsm);
-struct lov_stripe_md *lov_lsm_addref(struct lov_object *lov);
-
-#define lov_foreach_target(lov, var)		    \
-	for (var = 0; var < lov_targets_nr(lov); ++var)
-
-/*****************************************************************************
- *
- * Type conversions.
- *
- * Accessors.
- *
- */
-
-static inline struct lov_session *lov_env_session(const struct lu_env *env)
-{
-	struct lov_session *ses;
-
-	ses = lu_context_key_get(env->le_ses, &lov_session_key);
-	LASSERT(ses != NULL);
-	return ses;
-}
-
-static inline struct lov_io *lov_env_io(const struct lu_env *env)
-{
-	return &lov_env_session(env)->ls_io;
-}
-
-static inline int lov_is_object(const struct lu_object *obj)
-{
-	return obj->lo_dev->ld_type == &lov_device_type;
-}
-
-static inline int lovsub_is_object(const struct lu_object *obj)
-{
-	return obj->lo_dev->ld_type == &lovsub_device_type;
-}
-
-static inline struct lu_device *lov2lu_dev(struct lov_device *lov)
-{
-	return &lov->ld_cl.cd_lu_dev;
-}
-
-static inline struct lov_device *lu2lov_dev(const struct lu_device *d)
-{
-	LINVRNT(d->ld_type == &lov_device_type);
-	return container_of0(d, struct lov_device, ld_cl.cd_lu_dev);
-}
-
-static inline struct cl_device *lovsub2cl_dev(struct lovsub_device *lovsub)
-{
-	return &lovsub->acid_cl;
-}
-
-static inline struct lu_device *lovsub2lu_dev(struct lovsub_device *lovsub)
-{
-	return &lovsub2cl_dev(lovsub)->cd_lu_dev;
-}
-
-static inline struct lovsub_device *lu2lovsub_dev(const struct lu_device *d)
-{
-	LINVRNT(d->ld_type == &lovsub_device_type);
-	return container_of0(d, struct lovsub_device, acid_cl.cd_lu_dev);
-}
-
-static inline struct lovsub_device *cl2lovsub_dev(const struct cl_device *d)
-{
-	LINVRNT(d->cd_lu_dev.ld_type == &lovsub_device_type);
-	return container_of0(d, struct lovsub_device, acid_cl);
-}
-
-static inline struct lu_object *lov2lu(struct lov_object *lov)
-{
-	return &lov->lo_cl.co_lu;
-}
-
-static inline struct cl_object *lov2cl(struct lov_object *lov)
-{
-	return &lov->lo_cl;
-}
-
-static inline struct lov_object *lu2lov(const struct lu_object *obj)
-{
-	LINVRNT(lov_is_object(obj));
-	return container_of0(obj, struct lov_object, lo_cl.co_lu);
-}
-
-static inline struct lov_object *cl2lov(const struct cl_object *obj)
-{
-	LINVRNT(lov_is_object(&obj->co_lu));
-	return container_of0(obj, struct lov_object, lo_cl);
-}
-
-static inline struct lu_object *lovsub2lu(struct lovsub_object *los)
-{
-	return &los->lso_cl.co_lu;
-}
-
-static inline struct cl_object *lovsub2cl(struct lovsub_object *los)
-{
-	return &los->lso_cl;
-}
-
-static inline struct lovsub_object *cl2lovsub(const struct cl_object *obj)
-{
-	LINVRNT(lovsub_is_object(&obj->co_lu));
-	return container_of0(obj, struct lovsub_object, lso_cl);
-}
-
-static inline struct lovsub_object *lu2lovsub(const struct lu_object *obj)
-{
-	LINVRNT(lovsub_is_object(obj));
-	return container_of0(obj, struct lovsub_object, lso_cl.co_lu);
-}
-
-static inline struct lovsub_lock *
-cl2lovsub_lock(const struct cl_lock_slice *slice)
-{
-	LINVRNT(lovsub_is_object(&slice->cls_obj->co_lu));
-	return container_of(slice, struct lovsub_lock, lss_cl);
-}
-
-static inline struct lovsub_lock *cl2sub_lock(const struct cl_lock *lock)
-{
-	const struct cl_lock_slice *slice;
-
-	slice = cl_lock_at(lock, &lovsub_device_type);
-	LASSERT(slice != NULL);
-	return cl2lovsub_lock(slice);
-}
-
-static inline struct lov_lock *cl2lov_lock(const struct cl_lock_slice *slice)
-{
-	LINVRNT(lov_is_object(&slice->cls_obj->co_lu));
-	return container_of(slice, struct lov_lock, lls_cl);
-}
-
-static inline struct lov_page *cl2lov_page(const struct cl_page_slice *slice)
-{
-	LINVRNT(lov_is_object(&slice->cpl_obj->co_lu));
-	return container_of0(slice, struct lov_page, lps_cl);
-}
-
-static inline struct lov_req *cl2lov_req(const struct cl_req_slice *slice)
-{
-	return container_of0(slice, struct lov_req, lr_cl);
-}
-
-static inline struct lovsub_page *
-cl2lovsub_page(const struct cl_page_slice *slice)
-{
-	LINVRNT(lovsub_is_object(&slice->cpl_obj->co_lu));
-	return container_of0(slice, struct lovsub_page, lsb_cl);
-}
-
-static inline struct lovsub_req *cl2lovsub_req(const struct cl_req_slice *slice)
-{
-	return container_of0(slice, struct lovsub_req, lsrq_cl);
-}
-
-static inline struct cl_page *lov_sub_page(const struct cl_page_slice *slice)
-{
-	return slice->cpl_page->cp_child;
-}
-
-static inline struct lov_io *cl2lov_io(const struct lu_env *env,
-				const struct cl_io_slice *ios)
-{
-	struct lov_io *lio;
-
-	lio = container_of(ios, struct lov_io, lis_cl);
-	LASSERT(lio == lov_env_io(env));
-	return lio;
-}
-
-static inline int lov_targets_nr(const struct lov_device *lov)
-{
-	return lov->ld_lov->desc.ld_tgt_count;
-}
-
-static inline struct lov_thread_info *lov_env_info(const struct lu_env *env)
-{
-	struct lov_thread_info *info;
-
-	info = lu_context_key_get(&env->le_ctx, &lov_key);
-	LASSERT(info != NULL);
-	return info;
-}
-
-static inline struct lov_layout_raid0 *lov_r0(struct lov_object *lov)
-{
-	LASSERT(lov->lo_type == LLT_RAID0);
-	LASSERT(lov->lo_lsm->lsm_wire.lw_magic == LOV_MAGIC ||
-		lov->lo_lsm->lsm_wire.lw_magic == LOV_MAGIC_V3);
-	return &lov->u.raid0;
-}
-
-/** @} lov */
-
-#endif
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
deleted file mode 100644
index 8c3bbe574723..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ /dev/null
@@ -1,527 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_device and cl_device_type for LOV layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-/* class_name2obd() */
-#include "../include/obd_class.h"
-
-#include "lov_cl_internal.h"
-#include "lov_internal.h"
-
-
-struct kmem_cache *lov_lock_kmem;
-struct kmem_cache *lov_object_kmem;
-struct kmem_cache *lov_thread_kmem;
-struct kmem_cache *lov_session_kmem;
-struct kmem_cache *lov_req_kmem;
-
-struct kmem_cache *lovsub_lock_kmem;
-struct kmem_cache *lovsub_object_kmem;
-struct kmem_cache *lovsub_req_kmem;
-
-struct kmem_cache *lov_lock_link_kmem;
-
-/** Lock class of lov_device::ld_mutex. */
-static struct lock_class_key cl_lov_device_mutex_class;
-
-struct lu_kmem_descr lov_caches[] = {
-	{
-		.ckd_cache = &lov_lock_kmem,
-		.ckd_name  = "lov_lock_kmem",
-		.ckd_size  = sizeof(struct lov_lock)
-	},
-	{
-		.ckd_cache = &lov_object_kmem,
-		.ckd_name  = "lov_object_kmem",
-		.ckd_size  = sizeof(struct lov_object)
-	},
-	{
-		.ckd_cache = &lov_thread_kmem,
-		.ckd_name  = "lov_thread_kmem",
-		.ckd_size  = sizeof(struct lov_thread_info)
-	},
-	{
-		.ckd_cache = &lov_session_kmem,
-		.ckd_name  = "lov_session_kmem",
-		.ckd_size  = sizeof(struct lov_session)
-	},
-	{
-		.ckd_cache = &lov_req_kmem,
-		.ckd_name  = "lov_req_kmem",
-		.ckd_size  = sizeof(struct lov_req)
-	},
-	{
-		.ckd_cache = &lovsub_lock_kmem,
-		.ckd_name  = "lovsub_lock_kmem",
-		.ckd_size  = sizeof(struct lovsub_lock)
-	},
-	{
-		.ckd_cache = &lovsub_object_kmem,
-		.ckd_name  = "lovsub_object_kmem",
-		.ckd_size  = sizeof(struct lovsub_object)
-	},
-	{
-		.ckd_cache = &lovsub_req_kmem,
-		.ckd_name  = "lovsub_req_kmem",
-		.ckd_size  = sizeof(struct lovsub_req)
-	},
-	{
-		.ckd_cache = &lov_lock_link_kmem,
-		.ckd_name  = "lov_lock_link_kmem",
-		.ckd_size  = sizeof(struct lov_lock_link)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-/*****************************************************************************
- *
- * Lov transfer operations.
- *
- */
-
-static void lov_req_completion(const struct lu_env *env,
-			       const struct cl_req_slice *slice, int ioret)
-{
-	struct lov_req *lr;
-
-	lr = cl2lov_req(slice);
-	OBD_SLAB_FREE_PTR(lr, lov_req_kmem);
-}
-
-static const struct cl_req_operations lov_req_ops = {
-	.cro_completion = lov_req_completion
-};
-
-/*****************************************************************************
- *
- * Lov device and device type functions.
- *
- */
-
-static void *lov_key_init(const struct lu_context *ctx,
-			  struct lu_context_key *key)
-{
-	struct lov_thread_info *info;
-
-	OBD_SLAB_ALLOC_PTR_GFP(info, lov_thread_kmem, GFP_NOFS);
-	if (info != NULL)
-		INIT_LIST_HEAD(&info->lti_closure.clc_list);
-	else
-		info = ERR_PTR(-ENOMEM);
-	return info;
-}
-
-static void lov_key_fini(const struct lu_context *ctx,
-			 struct lu_context_key *key, void *data)
-{
-	struct lov_thread_info *info = data;
-	LINVRNT(list_empty(&info->lti_closure.clc_list));
-	OBD_SLAB_FREE_PTR(info, lov_thread_kmem);
-}
-
-struct lu_context_key lov_key = {
-	.lct_tags = LCT_CL_THREAD,
-	.lct_init = lov_key_init,
-	.lct_fini = lov_key_fini
-};
-
-static void *lov_session_key_init(const struct lu_context *ctx,
-				  struct lu_context_key *key)
-{
-	struct lov_session *info;
-
-	OBD_SLAB_ALLOC_PTR_GFP(info, lov_session_kmem, GFP_NOFS);
-	if (info == NULL)
-		info = ERR_PTR(-ENOMEM);
-	return info;
-}
-
-static void lov_session_key_fini(const struct lu_context *ctx,
-				 struct lu_context_key *key, void *data)
-{
-	struct lov_session *info = data;
-	OBD_SLAB_FREE_PTR(info, lov_session_kmem);
-}
-
-struct lu_context_key lov_session_key = {
-	.lct_tags = LCT_SESSION,
-	.lct_init = lov_session_key_init,
-	.lct_fini = lov_session_key_fini
-};
-
-/* type constructor/destructor: lov_type_{init,fini,start,stop}() */
-LU_TYPE_INIT_FINI(lov, &lov_key, &lov_session_key);
-
-static struct lu_device *lov_device_fini(const struct lu_env *env,
-					 struct lu_device *d)
-{
-	int i;
-	struct lov_device *ld = lu2lov_dev(d);
-
-	LASSERT(ld->ld_lov != NULL);
-	if (ld->ld_target == NULL)
-		return NULL;
-
-	lov_foreach_target(ld, i) {
-		struct lovsub_device *lsd;
-
-		lsd = ld->ld_target[i];
-		if (lsd != NULL) {
-			cl_stack_fini(env, lovsub2cl_dev(lsd));
-			ld->ld_target[i] = NULL;
-		}
-	}
-	return NULL;
-}
-
-static int lov_device_init(const struct lu_env *env, struct lu_device *d,
-			   const char *name, struct lu_device *next)
-{
-	struct lov_device *ld = lu2lov_dev(d);
-	int i;
-	int rc = 0;
-
-	LASSERT(d->ld_site != NULL);
-	if (ld->ld_target == NULL)
-		return rc;
-
-	lov_foreach_target(ld, i) {
-		struct lovsub_device *lsd;
-		struct cl_device     *cl;
-		struct lov_tgt_desc  *desc;
-
-		desc = ld->ld_lov->lov_tgts[i];
-		if (desc == NULL)
-			continue;
-
-		cl = cl_type_setup(env, d->ld_site, &lovsub_device_type,
-				   desc->ltd_obd->obd_lu_dev);
-		if (IS_ERR(cl)) {
-			rc = PTR_ERR(cl);
-			break;
-		}
-		lsd = cl2lovsub_dev(cl);
-		lsd->acid_idx = i;
-		lsd->acid_super = ld;
-		ld->ld_target[i] = lsd;
-	}
-
-	if (rc)
-		lov_device_fini(env, d);
-	else
-		ld->ld_flags |= LOV_DEV_INITIALIZED;
-
-	return rc;
-}
-
-static int lov_req_init(const struct lu_env *env, struct cl_device *dev,
-			struct cl_req *req)
-{
-	struct lov_req *lr;
-	int result;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lr, lov_req_kmem, GFP_NOFS);
-	if (lr != NULL) {
-		cl_req_slice_add(req, &lr->lr_cl, dev, &lov_req_ops);
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-static const struct cl_device_operations lov_cl_ops = {
-	.cdo_req_init = lov_req_init
-};
-
-static void lov_emerg_free(struct lov_device_emerg **emrg, int nr)
-{
-	int i;
-
-	for (i = 0; i < nr; ++i) {
-		struct lov_device_emerg *em;
-
-		em = emrg[i];
-		if (em != NULL) {
-			LASSERT(em->emrg_page_list.pl_nr == 0);
-			if (em->emrg_env != NULL)
-				cl_env_put(em->emrg_env, &em->emrg_refcheck);
-			kfree(em);
-		}
-	}
-	kfree(emrg);
-}
-
-static struct lu_device *lov_device_free(const struct lu_env *env,
-					 struct lu_device *d)
-{
-	struct lov_device *ld = lu2lov_dev(d);
-	const int	  nr = ld->ld_target_nr;
-
-	cl_device_fini(lu2cl_dev(d));
-	kfree(ld->ld_target);
-	if (ld->ld_emrg != NULL)
-		lov_emerg_free(ld->ld_emrg, nr);
-	kfree(ld);
-	return NULL;
-}
-
-static void lov_cl_del_target(const struct lu_env *env, struct lu_device *dev,
-			      __u32 index)
-{
-	struct lov_device *ld = lu2lov_dev(dev);
-
-	if (ld->ld_target[index] != NULL) {
-		cl_stack_fini(env, lovsub2cl_dev(ld->ld_target[index]));
-		ld->ld_target[index] = NULL;
-	}
-}
-
-static struct lov_device_emerg **lov_emerg_alloc(int nr)
-{
-	struct lov_device_emerg **emerg;
-	int i;
-	int result;
-
-	emerg = kcalloc(nr, sizeof(emerg[0]), GFP_NOFS);
-	if (emerg == NULL)
-		return ERR_PTR(-ENOMEM);
-	for (result = i = 0; i < nr && result == 0; i++) {
-		struct lov_device_emerg *em;
-
-		em = kzalloc(sizeof(*em), GFP_NOFS);
-		if (em != NULL) {
-			emerg[i] = em;
-			cl_page_list_init(&em->emrg_page_list);
-			em->emrg_env = cl_env_alloc(&em->emrg_refcheck,
-						    LCT_REMEMBER|LCT_NOREF);
-			if (!IS_ERR(em->emrg_env))
-				em->emrg_env->le_ctx.lc_cookie = 0x2;
-			else {
-				result = PTR_ERR(em->emrg_env);
-				em->emrg_env = NULL;
-			}
-		} else
-			result = -ENOMEM;
-	}
-	if (result != 0) {
-		lov_emerg_free(emerg, nr);
-		emerg = ERR_PTR(result);
-	}
-	return emerg;
-}
-
-static int lov_expand_targets(const struct lu_env *env, struct lov_device *dev)
-{
-	int   result;
-	__u32 tgt_size;
-	__u32 sub_size;
-
-	result = 0;
-	tgt_size = dev->ld_lov->lov_tgt_size;
-	sub_size = dev->ld_target_nr;
-	if (sub_size < tgt_size) {
-		struct lovsub_device    **newd;
-		struct lov_device_emerg **emerg;
-		const size_t	      sz   = sizeof(newd[0]);
-
-		emerg = lov_emerg_alloc(tgt_size);
-		if (IS_ERR(emerg))
-			return PTR_ERR(emerg);
-
-		newd = kcalloc(tgt_size, sz, GFP_NOFS);
-		if (newd != NULL) {
-			mutex_lock(&dev->ld_mutex);
-			if (sub_size > 0) {
-				memcpy(newd, dev->ld_target, sub_size * sz);
-				kfree(dev->ld_target);
-			}
-			dev->ld_target    = newd;
-			dev->ld_target_nr = tgt_size;
-
-			if (dev->ld_emrg != NULL)
-				lov_emerg_free(dev->ld_emrg, sub_size);
-			dev->ld_emrg = emerg;
-			mutex_unlock(&dev->ld_mutex);
-		} else {
-			lov_emerg_free(emerg, tgt_size);
-			result = -ENOMEM;
-		}
-	}
-	return result;
-}
-
-static int lov_cl_add_target(const struct lu_env *env, struct lu_device *dev,
-			     __u32 index)
-{
-	struct obd_device    *obd = dev->ld_obd;
-	struct lov_device    *ld  = lu2lov_dev(dev);
-	struct lov_tgt_desc  *tgt;
-	struct lovsub_device *lsd;
-	struct cl_device     *cl;
-	int rc;
-
-	obd_getref(obd);
-
-	tgt = obd->u.lov.lov_tgts[index];
-	LASSERT(tgt != NULL);
-	LASSERT(tgt->ltd_obd != NULL);
-
-	if (!tgt->ltd_obd->obd_set_up) {
-		CERROR("Target %s not set up\n", obd_uuid2str(&tgt->ltd_uuid));
-		return -EINVAL;
-	}
-
-	rc = lov_expand_targets(env, ld);
-	if (rc == 0 && ld->ld_flags & LOV_DEV_INITIALIZED) {
-		LASSERT(dev->ld_site != NULL);
-
-		cl = cl_type_setup(env, dev->ld_site, &lovsub_device_type,
-				   tgt->ltd_obd->obd_lu_dev);
-		if (!IS_ERR(cl)) {
-			lsd = cl2lovsub_dev(cl);
-			lsd->acid_idx = index;
-			lsd->acid_super = ld;
-			ld->ld_target[index] = lsd;
-		} else {
-			CERROR("add failed (%d), deleting %s\n", rc,
-			       obd_uuid2str(&tgt->ltd_uuid));
-			lov_cl_del_target(env, dev, index);
-			rc = PTR_ERR(cl);
-		}
-	}
-	obd_putref(obd);
-	return rc;
-}
-
-static int lov_process_config(const struct lu_env *env,
-			      struct lu_device *d, struct lustre_cfg *cfg)
-{
-	struct obd_device *obd = d->ld_obd;
-	int cmd;
-	int rc;
-	int gen;
-	__u32 index;
-
-	obd_getref(obd);
-
-	cmd = cfg->lcfg_command;
-	rc = lov_process_config_base(d->ld_obd, cfg, &index, &gen);
-	if (rc == 0) {
-		switch (cmd) {
-		case LCFG_LOV_ADD_OBD:
-		case LCFG_LOV_ADD_INA:
-			rc = lov_cl_add_target(env, d, index);
-			if (rc != 0)
-				lov_del_target(d->ld_obd, index, NULL, 0);
-			break;
-		case LCFG_LOV_DEL_OBD:
-			lov_cl_del_target(env, d, index);
-			break;
-		}
-	}
-	obd_putref(obd);
-	return rc;
-}
-
-static const struct lu_device_operations lov_lu_ops = {
-	.ldo_object_alloc      = lov_object_alloc,
-	.ldo_process_config    = lov_process_config,
-};
-
-static struct lu_device *lov_device_alloc(const struct lu_env *env,
-					  struct lu_device_type *t,
-					  struct lustre_cfg *cfg)
-{
-	struct lu_device *d;
-	struct lov_device *ld;
-	struct obd_device *obd;
-	int rc;
-
-	ld = kzalloc(sizeof(*ld), GFP_NOFS);
-	if (!ld)
-		return ERR_PTR(-ENOMEM);
-
-	cl_device_init(&ld->ld_cl, t);
-	d = lov2lu_dev(ld);
-	d->ld_ops	= &lov_lu_ops;
-	ld->ld_cl.cd_ops = &lov_cl_ops;
-
-	mutex_init(&ld->ld_mutex);
-	lockdep_set_class(&ld->ld_mutex, &cl_lov_device_mutex_class);
-
-	/* setup the LOV OBD */
-	obd = class_name2obd(lustre_cfg_string(cfg, 0));
-	LASSERT(obd != NULL);
-	rc = lov_setup(obd, cfg);
-	if (rc) {
-		lov_device_free(env, d);
-		return ERR_PTR(rc);
-	}
-
-	ld->ld_lov = &obd->u.lov;
-	return d;
-}
-
-static const struct lu_device_type_operations lov_device_type_ops = {
-	.ldto_init = lov_type_init,
-	.ldto_fini = lov_type_fini,
-
-	.ldto_start = lov_type_start,
-	.ldto_stop  = lov_type_stop,
-
-	.ldto_device_alloc = lov_device_alloc,
-	.ldto_device_free  = lov_device_free,
-
-	.ldto_device_init    = lov_device_init,
-	.ldto_device_fini    = lov_device_fini
-};
-
-struct lu_device_type lov_device_type = {
-	.ldt_tags     = LU_DEVICE_CL,
-	.ldt_name     = LUSTRE_LOV_NAME,
-	.ldt_ops      = &lov_device_type_ops,
-	.ldt_ctx_tags = LCT_CL_THREAD
-};
-EXPORT_SYMBOL(lov_device_type);
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
deleted file mode 100644
index 3f51b573e1fb..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ /dev/null
@@ -1,362 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lov/lov_ea.c
- *
- * Author: Wang Di <wangdi@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include <asm/div64.h>
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd_class.h"
-#include "../include/lustre/lustre_idl.h"
-
-#include "lov_internal.h"
-
-struct lovea_unpack_args {
-	struct lov_stripe_md *lsm;
-	int		   cursor;
-};
-
-static int lsm_lmm_verify_common(struct lov_mds_md *lmm, int lmm_bytes,
-				 __u16 stripe_count)
-{
-	if (stripe_count > LOV_V1_INSANE_STRIPE_COUNT) {
-		CERROR("bad stripe count %d\n", stripe_count);
-		lov_dump_lmm_common(D_WARNING, lmm);
-		return -EINVAL;
-	}
-
-	if (lmm_oi_id(&lmm->lmm_oi) == 0) {
-		CERROR("zero object id\n");
-		lov_dump_lmm_common(D_WARNING, lmm);
-		return -EINVAL;
-	}
-
-	if (lov_pattern(le32_to_cpu(lmm->lmm_pattern)) != LOV_PATTERN_RAID0) {
-		CERROR("bad striping pattern\n");
-		lov_dump_lmm_common(D_WARNING, lmm);
-		return -EINVAL;
-	}
-
-	if (lmm->lmm_stripe_size == 0 ||
-	    (le32_to_cpu(lmm->lmm_stripe_size)&(LOV_MIN_STRIPE_SIZE-1)) != 0) {
-		CERROR("bad stripe size %u\n",
-		       le32_to_cpu(lmm->lmm_stripe_size));
-		lov_dump_lmm_common(D_WARNING, lmm);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
-{
-	struct lov_stripe_md *lsm;
-	struct lov_oinfo     *loi;
-	int		   i, oinfo_ptrs_size;
-
-	LASSERT(stripe_count <= LOV_MAX_STRIPE_COUNT);
-
-	oinfo_ptrs_size = sizeof(struct lov_oinfo *) * stripe_count;
-	*size = sizeof(struct lov_stripe_md) + oinfo_ptrs_size;
-
-	lsm = libcfs_kvzalloc(*size, GFP_NOFS);
-	if (!lsm)
-		return NULL;
-
-	for (i = 0; i < stripe_count; i++) {
-		OBD_SLAB_ALLOC_PTR_GFP(loi, lov_oinfo_slab, GFP_NOFS);
-		if (loi == NULL)
-			goto err;
-		lsm->lsm_oinfo[i] = loi;
-	}
-	lsm->lsm_stripe_count = stripe_count;
-	return lsm;
-
-err:
-	while (--i >= 0)
-		OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab, sizeof(*loi));
-	kvfree(lsm);
-	return NULL;
-}
-
-void lsm_free_plain(struct lov_stripe_md *lsm)
-{
-	__u16 stripe_count = lsm->lsm_stripe_count;
-	int i;
-
-	for (i = 0; i < stripe_count; i++)
-		OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab,
-			      sizeof(struct lov_oinfo));
-	kvfree(lsm);
-}
-
-static void lsm_unpackmd_common(struct lov_stripe_md *lsm,
-				struct lov_mds_md *lmm)
-{
-	/*
-	 * This supposes lov_mds_md_v1/v3 first fields are
-	 * are the same
-	 */
-	lmm_oi_le_to_cpu(&lsm->lsm_oi, &lmm->lmm_oi);
-	lsm->lsm_stripe_size = le32_to_cpu(lmm->lmm_stripe_size);
-	lsm->lsm_pattern = le32_to_cpu(lmm->lmm_pattern);
-	lsm->lsm_layout_gen = le16_to_cpu(lmm->lmm_layout_gen);
-	lsm->lsm_pool_name[0] = '\0';
-}
-
-static void
-lsm_stripe_by_index_plain(struct lov_stripe_md *lsm, int *stripeno,
-			   u64 *lov_off, u64 *swidth)
-{
-	if (swidth)
-		*swidth = (u64)lsm->lsm_stripe_size * lsm->lsm_stripe_count;
-}
-
-static void
-lsm_stripe_by_offset_plain(struct lov_stripe_md *lsm, int *stripeno,
-			   u64 *lov_off, u64 *swidth)
-{
-	if (swidth)
-		*swidth = (u64)lsm->lsm_stripe_size * lsm->lsm_stripe_count;
-}
-
-static int lsm_destroy_plain(struct lov_stripe_md *lsm, struct obdo *oa,
-			     struct obd_export *md_exp)
-{
-	return 0;
-}
-
-/* Find minimum stripe maxbytes value.  For inactive or
- * reconnecting targets use LUSTRE_STRIPE_MAXBYTES. */
-static void lov_tgt_maxbytes(struct lov_tgt_desc *tgt, __u64 *stripe_maxbytes)
-{
-	struct obd_import *imp = tgt->ltd_obd->u.cli.cl_import;
-
-	if (imp == NULL || !tgt->ltd_active) {
-		*stripe_maxbytes = LUSTRE_STRIPE_MAXBYTES;
-		return;
-	}
-
-	spin_lock(&imp->imp_lock);
-	if (imp->imp_state == LUSTRE_IMP_FULL &&
-	    (imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_MAXBYTES) &&
-	    imp->imp_connect_data.ocd_maxbytes > 0) {
-		if (*stripe_maxbytes > imp->imp_connect_data.ocd_maxbytes)
-			*stripe_maxbytes = imp->imp_connect_data.ocd_maxbytes;
-	} else {
-		*stripe_maxbytes = LUSTRE_STRIPE_MAXBYTES;
-	}
-	spin_unlock(&imp->imp_lock);
-}
-
-static int lsm_lmm_verify_v1(struct lov_mds_md_v1 *lmm, int lmm_bytes,
-			     __u16 *stripe_count)
-{
-	if (lmm_bytes < sizeof(*lmm)) {
-		CERROR("lov_mds_md_v1 too small: %d, need at least %d\n",
-		       lmm_bytes, (int)sizeof(*lmm));
-		return -EINVAL;
-	}
-
-	*stripe_count = le16_to_cpu(lmm->lmm_stripe_count);
-	if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
-		*stripe_count = 0;
-
-	if (lmm_bytes < lov_mds_md_size(*stripe_count, LOV_MAGIC_V1)) {
-		CERROR("LOV EA V1 too small: %d, need %d\n",
-		       lmm_bytes, lov_mds_md_size(*stripe_count, LOV_MAGIC_V1));
-		lov_dump_lmm_common(D_WARNING, lmm);
-		return -EINVAL;
-	}
-
-	return lsm_lmm_verify_common(lmm, lmm_bytes, *stripe_count);
-}
-
-static int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
-			   struct lov_mds_md_v1 *lmm)
-{
-	struct lov_oinfo *loi;
-	int i;
-	int stripe_count;
-	__u64 stripe_maxbytes = OBD_OBJECT_EOF;
-
-	lsm_unpackmd_common(lsm, lmm);
-
-	stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count;
-
-	for (i = 0; i < stripe_count; i++) {
-		/* XXX LOV STACKING call down to osc_unpackmd() */
-		loi = lsm->lsm_oinfo[i];
-		ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
-		loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
-		loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
-		if (lov_oinfo_is_dummy(loi))
-			continue;
-
-		if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
-			CERROR("OST index %d more than OST count %d\n",
-			       loi->loi_ost_idx, lov->desc.ld_tgt_count);
-			lov_dump_lmm_v1(D_WARNING, lmm);
-			return -EINVAL;
-		}
-		if (!lov->lov_tgts[loi->loi_ost_idx]) {
-			CERROR("OST index %d missing\n", loi->loi_ost_idx);
-			lov_dump_lmm_v1(D_WARNING, lmm);
-			return -EINVAL;
-		}
-		/* calculate the minimum stripe max bytes */
-		lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx],
-				 &stripe_maxbytes);
-	}
-
-	lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count;
-	if (lsm->lsm_stripe_count == 0)
-		lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count;
-
-	return 0;
-}
-
-const struct lsm_operations lsm_v1_ops = {
-	.lsm_free	    = lsm_free_plain,
-	.lsm_destroy	 = lsm_destroy_plain,
-	.lsm_stripe_by_index    = lsm_stripe_by_index_plain,
-	.lsm_stripe_by_offset   = lsm_stripe_by_offset_plain,
-	.lsm_lmm_verify	 = lsm_lmm_verify_v1,
-	.lsm_unpackmd	   = lsm_unpackmd_v1,
-};
-
-static int lsm_lmm_verify_v3(struct lov_mds_md *lmmv1, int lmm_bytes,
-			     __u16 *stripe_count)
-{
-	struct lov_mds_md_v3 *lmm;
-
-	lmm = (struct lov_mds_md_v3 *)lmmv1;
-
-	if (lmm_bytes < sizeof(*lmm)) {
-		CERROR("lov_mds_md_v3 too small: %d, need at least %d\n",
-		       lmm_bytes, (int)sizeof(*lmm));
-		return -EINVAL;
-	}
-
-	*stripe_count = le16_to_cpu(lmm->lmm_stripe_count);
-	if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
-		*stripe_count = 0;
-
-	if (lmm_bytes < lov_mds_md_size(*stripe_count, LOV_MAGIC_V3)) {
-		CERROR("LOV EA V3 too small: %d, need %d\n",
-		       lmm_bytes, lov_mds_md_size(*stripe_count, LOV_MAGIC_V3));
-		lov_dump_lmm_common(D_WARNING, lmm);
-		return -EINVAL;
-	}
-
-	return lsm_lmm_verify_common((struct lov_mds_md_v1 *)lmm, lmm_bytes,
-				     *stripe_count);
-}
-
-static int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm,
-			   struct lov_mds_md *lmmv1)
-{
-	struct lov_mds_md_v3 *lmm;
-	struct lov_oinfo *loi;
-	int i;
-	int stripe_count;
-	__u64 stripe_maxbytes = OBD_OBJECT_EOF;
-	int cplen = 0;
-
-	lmm = (struct lov_mds_md_v3 *)lmmv1;
-
-	lsm_unpackmd_common(lsm, (struct lov_mds_md_v1 *)lmm);
-
-	stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count;
-
-	cplen = strlcpy(lsm->lsm_pool_name, lmm->lmm_pool_name,
-			sizeof(lsm->lsm_pool_name));
-	if (cplen >= sizeof(lsm->lsm_pool_name))
-		return -E2BIG;
-
-	for (i = 0; i < stripe_count; i++) {
-		/* XXX LOV STACKING call down to osc_unpackmd() */
-		loi = lsm->lsm_oinfo[i];
-		ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
-		loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
-		loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
-		if (lov_oinfo_is_dummy(loi))
-			continue;
-
-		if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
-			CERROR("OST index %d more than OST count %d\n",
-			       loi->loi_ost_idx, lov->desc.ld_tgt_count);
-			lov_dump_lmm_v3(D_WARNING, lmm);
-			return -EINVAL;
-		}
-		if (!lov->lov_tgts[loi->loi_ost_idx]) {
-			CERROR("OST index %d missing\n", loi->loi_ost_idx);
-			lov_dump_lmm_v3(D_WARNING, lmm);
-			return -EINVAL;
-		}
-		/* calculate the minimum stripe max bytes */
-		lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx],
-				 &stripe_maxbytes);
-	}
-
-	lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count;
-	if (lsm->lsm_stripe_count == 0)
-		lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count;
-
-	return 0;
-}
-
-const struct lsm_operations lsm_v3_ops = {
-	.lsm_free	    = lsm_free_plain,
-	.lsm_destroy	 = lsm_destroy_plain,
-	.lsm_stripe_by_index    = lsm_stripe_by_index_plain,
-	.lsm_stripe_by_offset   = lsm_stripe_by_offset_plain,
-	.lsm_lmm_verify	 = lsm_lmm_verify_v3,
-	.lsm_unpackmd	   = lsm_unpackmd_v3,
-};
-
-void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm)
-{
-	CDEBUG(level, "lsm %p, objid " DOSTID ", maxbytes %#llx, magic 0x%08X, stripe_size %u, stripe_count %u, refc: %d, layout_gen %u, pool [" LOV_POOLNAMEF "]\n",
-	       lsm,
-	       POSTID(&lsm->lsm_oi), lsm->lsm_maxbytes, lsm->lsm_magic,
-	       lsm->lsm_stripe_size, lsm->lsm_stripe_count,
-	       atomic_read(&lsm->lsm_refc), lsm->lsm_layout_gen,
-	       lsm->lsm_pool_name);
-}
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
deleted file mode 100644
index dde9656d4dd6..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef LOV_INTERNAL_H
-#define LOV_INTERNAL_H
-
-#include "../include/obd_class.h"
-#include "../include/lustre/lustre_user.h"
-
-/* lov_do_div64(a, b) returns a % b, and a = a / b.
- * The 32-bit code is LOV-specific due to knowing about stripe limits in
- * order to reduce the divisor to a 32-bit number.  If the divisor is
- * already a 32-bit value the compiler handles this directly. */
-#if BITS_PER_LONG == 64
-# define lov_do_div64(n, base) ({					\
-	uint64_t __base = (base);					\
-	uint64_t __rem;							\
-	__rem = ((uint64_t)(n)) % __base;				\
-	(n) = ((uint64_t)(n)) / __base;					\
-	__rem;								\
-})
-#elif BITS_PER_LONG == 32
-# define lov_do_div64(n, base) ({					\
-	uint64_t __rem;							\
-	if ((sizeof(base) > 4) && (((base) & 0xffffffff00000000ULL) != 0)) {  \
-		int __remainder;					      \
-		LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), "64 bit lov " \
-			 "division %llu / %llu\n", (n), (uint64_t)(base));    \
-		__remainder = (n) & (LOV_MIN_STRIPE_SIZE - 1);		\
-		(n) >>= LOV_MIN_STRIPE_BITS;				\
-		__rem = do_div(n, (base) >> LOV_MIN_STRIPE_BITS);	\
-		__rem <<= LOV_MIN_STRIPE_BITS;				\
-		__rem += __remainder;					\
-	} else {							\
-		__rem = do_div(n, base);				\
-	}								\
-	__rem;								\
-})
-#endif
-
-struct lov_request {
-	struct obd_info	  rq_oi;
-	struct lov_request_set  *rq_rqset;
-
-	struct list_head	       rq_link;
-
-	int		      rq_idx;	/* index in lov->tgts array */
-	int		      rq_stripe;     /* stripe number */
-	int		      rq_complete;
-	int		      rq_rc;
-
-	u32		      rq_oabufs;
-	u32		      rq_pgaidx;
-};
-
-struct lov_request_set {
-	struct ldlm_enqueue_info	*set_ei;
-	struct obd_info			*set_oi;
-	atomic_t			set_refcount;
-	struct obd_export		*set_exp;
-	/* XXX: There is @set_exp already, however obd_statfs gets obd_device
-	   only. */
-	struct obd_device		*set_obd;
-	int				set_count;
-	atomic_t			set_completes;
-	atomic_t			set_success;
-	atomic_t			set_finish_checked;
-	struct llog_cookie		*set_cookies;
-	int				set_cookie_sent;
-	struct obd_trans_info		*set_oti;
-	struct list_head			set_list;
-	wait_queue_head_t			set_waitq;
-	spinlock_t			set_lock;
-};
-
-extern struct kmem_cache *lov_oinfo_slab;
-
-extern struct lu_kmem_descr lov_caches[];
-
-void lov_finish_set(struct lov_request_set *set);
-
-static inline void lov_get_reqset(struct lov_request_set *set)
-{
-	LASSERT(set != NULL);
-	LASSERT(atomic_read(&set->set_refcount) > 0);
-	atomic_inc(&set->set_refcount);
-}
-
-static inline void lov_put_reqset(struct lov_request_set *set)
-{
-	if (atomic_dec_and_test(&set->set_refcount))
-		lov_finish_set(set);
-}
-
-#define lov_uuid2str(lv, index) \
-	(char *)((lv)->lov_tgts[index]->ltd_uuid.uuid)
-
-/* lov_merge.c */
-void lov_merge_attrs(struct obdo *tgt, struct obdo *src, u64 valid,
-		     struct lov_stripe_md *lsm, int stripeno, int *set);
-int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
-		   u64 size, int shrink);
-int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
-		      struct ost_lvb *lvb, __u64 *kms_place);
-
-/* lov_offset.c */
-u64 lov_stripe_size(struct lov_stripe_md *lsm, u64 ost_size,
-			 int stripeno);
-int lov_stripe_offset(struct lov_stripe_md *lsm, u64 lov_off,
-		      int stripeno, u64 *u64);
-u64 lov_size_to_stripe(struct lov_stripe_md *lsm, u64 file_size,
-			   int stripeno);
-int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
-			  u64 start, u64 end,
-			  u64 *obd_start, u64 *obd_end);
-int lov_stripe_number(struct lov_stripe_md *lsm, u64 lov_off);
-
-/* lov_qos.c */
-#define LOV_USES_ASSIGNED_STRIPE	0
-#define LOV_USES_DEFAULT_STRIPE	 1
-int qos_add_tgt(struct obd_device *obd, __u32 index);
-int qos_del_tgt(struct obd_device *obd, struct lov_tgt_desc *tgt);
-void qos_shrink_lsm(struct lov_request_set *set);
-int qos_prep_create(struct obd_export *exp, struct lov_request_set *set);
-void qos_update(struct lov_obd *lov);
-void qos_statfs_done(struct lov_obd *lov);
-void qos_statfs_update(struct obd_device *obd, __u64 max_age, int wait);
-int qos_remedy_create(struct lov_request_set *set, struct lov_request *req);
-
-/* lov_request.c */
-void lov_set_add_req(struct lov_request *req, struct lov_request_set *set);
-int lov_set_finished(struct lov_request_set *set, int idempotent);
-void lov_update_set(struct lov_request_set *set,
-		    struct lov_request *req, int rc);
-int lov_update_common_set(struct lov_request_set *set,
-			  struct lov_request *req, int rc);
-int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx);
-int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
-			 struct lov_request_set **reqset);
-int lov_fini_getattr_set(struct lov_request_set *set);
-int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
-			 struct obdo *src_oa, struct lov_stripe_md *lsm,
-			 struct obd_trans_info *oti,
-			 struct lov_request_set **reqset);
-int lov_fini_destroy_set(struct lov_request_set *set);
-int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
-			 struct obd_trans_info *oti,
-			 struct lov_request_set **reqset);
-int lov_update_setattr_set(struct lov_request_set *set,
-			   struct lov_request *req, int rc);
-int lov_fini_setattr_set(struct lov_request_set *set);
-int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
-			struct lov_request_set **reqset);
-void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
-		       int success);
-int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs,
-		    int success);
-int lov_fini_statfs_set(struct lov_request_set *set);
-int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc);
-
-/* lov_obd.c */
-void lov_fix_desc(struct lov_desc *desc);
-void lov_fix_desc_stripe_size(__u64 *val);
-void lov_fix_desc_stripe_count(__u32 *val);
-void lov_fix_desc_pattern(__u32 *val);
-void lov_fix_desc_qos_maxage(__u32 *val);
-__u16 lov_get_stripecnt(struct lov_obd *lov, __u32 magic, __u16 stripe_count);
-int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
-		    struct obd_connect_data *data);
-int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
-int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg,
-			    __u32 *indexp, int *genp);
-int lov_del_target(struct obd_device *obd, __u32 index,
-		   struct obd_uuid *uuidp, int gen);
-
-/* lov_pack.c */
-int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmm,
-	       struct lov_stripe_md *lsm);
-int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
-		 struct lov_mds_md *lmm, int lmm_bytes);
-int lov_getstripe(struct obd_export *exp,
-		  struct lov_stripe_md *lsm, struct lov_user_md *lump);
-int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count,
-		    int pattern, int magic);
-int lov_free_memmd(struct lov_stripe_md **lsmp);
-
-void lov_dump_lmm_v1(int level, struct lov_mds_md_v1 *lmm);
-void lov_dump_lmm_v3(int level, struct lov_mds_md_v3 *lmm);
-void lov_dump_lmm_common(int level, void *lmmp);
-void lov_dump_lmm(int level, void *lmm);
-
-/* lov_ea.c */
-struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size);
-void lsm_free_plain(struct lov_stripe_md *lsm);
-void dump_lsm(unsigned int level, const struct lov_stripe_md *lsm);
-
-/* lproc_lov.c */
-extern const struct file_operations lov_proc_target_fops;
-void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars);
-
-/* lov_cl.c */
-extern struct lu_device_type lov_device_type;
-
-/* pools */
-extern cfs_hash_ops_t pool_hash_operations;
-/* ost_pool methods */
-int lov_ost_pool_init(struct ost_pool *op, unsigned int count);
-int lov_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
-int lov_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count);
-int lov_ost_pool_remove(struct ost_pool *op, __u32 idx);
-int lov_ost_pool_free(struct ost_pool *op);
-
-/* high level pool methods */
-int lov_pool_new(struct obd_device *obd, char *poolname);
-int lov_pool_del(struct obd_device *obd, char *poolname);
-int lov_pool_add(struct obd_device *obd, char *poolname, char *ostname);
-int lov_pool_remove(struct obd_device *obd, char *poolname, char *ostname);
-void lov_dump_pool(int level, struct pool_desc *pool);
-struct pool_desc *lov_find_pool(struct lov_obd *lov, char *poolname);
-int lov_check_index_in_pool(__u32 idx, struct pool_desc *pool);
-void lov_pool_putref(struct pool_desc *pool);
-
-static inline struct lov_stripe_md *lsm_addref(struct lov_stripe_md *lsm)
-{
-	LASSERT(atomic_read(&lsm->lsm_refc) > 0);
-	atomic_inc(&lsm->lsm_refc);
-	return lsm;
-}
-
-static inline bool lov_oinfo_is_dummy(const struct lov_oinfo *loi)
-{
-	if (unlikely(loi->loi_oi.oi.oi_id == 0 &&
-		     loi->loi_oi.oi.oi_seq == 0 &&
-		     loi->loi_ost_idx == 0 &&
-		     loi->loi_ost_gen == 0))
-		return true;
-
-	return false;
-}
-
-
-#endif
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
deleted file mode 100644
index bf3629151d68..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ /dev/null
@@ -1,993 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_io for LOV layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-static inline void lov_sub_enter(struct lov_io_sub *sub)
-{
-	sub->sub_reenter++;
-}
-static inline void lov_sub_exit(struct lov_io_sub *sub)
-{
-	sub->sub_reenter--;
-}
-
-static void lov_io_sub_fini(const struct lu_env *env, struct lov_io *lio,
-			    struct lov_io_sub *sub)
-{
-	if (sub->sub_io != NULL) {
-		if (sub->sub_io_initialized) {
-			lov_sub_enter(sub);
-			cl_io_fini(sub->sub_env, sub->sub_io);
-			lov_sub_exit(sub);
-			sub->sub_io_initialized = 0;
-			lio->lis_active_subios--;
-		}
-		if (sub->sub_stripe == lio->lis_single_subio_index)
-			lio->lis_single_subio_index = -1;
-		else if (!sub->sub_borrowed)
-			kfree(sub->sub_io);
-		sub->sub_io = NULL;
-	}
-	if (sub->sub_env != NULL && !IS_ERR(sub->sub_env)) {
-		if (!sub->sub_borrowed)
-			cl_env_put(sub->sub_env, &sub->sub_refcheck);
-		sub->sub_env = NULL;
-	}
-}
-
-static void lov_io_sub_inherit(struct cl_io *io, struct lov_io *lio,
-			       int stripe, loff_t start, loff_t end)
-{
-	struct lov_stripe_md *lsm    = lio->lis_object->lo_lsm;
-	struct cl_io	 *parent = lio->lis_cl.cis_io;
-
-	switch (io->ci_type) {
-	case CIT_SETATTR: {
-		io->u.ci_setattr.sa_attr = parent->u.ci_setattr.sa_attr;
-		io->u.ci_setattr.sa_valid = parent->u.ci_setattr.sa_valid;
-		io->u.ci_setattr.sa_capa = parent->u.ci_setattr.sa_capa;
-		if (cl_io_is_trunc(io)) {
-			loff_t new_size = parent->u.ci_setattr.sa_attr.lvb_size;
-
-			new_size = lov_size_to_stripe(lsm, new_size, stripe);
-			io->u.ci_setattr.sa_attr.lvb_size = new_size;
-		}
-		break;
-	}
-	case CIT_FAULT: {
-		struct cl_object *obj = parent->ci_obj;
-		loff_t off = cl_offset(obj, parent->u.ci_fault.ft_index);
-
-		io->u.ci_fault = parent->u.ci_fault;
-		off = lov_size_to_stripe(lsm, off, stripe);
-		io->u.ci_fault.ft_index = cl_index(obj, off);
-		break;
-	}
-	case CIT_FSYNC: {
-		io->u.ci_fsync.fi_start = start;
-		io->u.ci_fsync.fi_end = end;
-		io->u.ci_fsync.fi_capa = parent->u.ci_fsync.fi_capa;
-		io->u.ci_fsync.fi_fid = parent->u.ci_fsync.fi_fid;
-		io->u.ci_fsync.fi_mode = parent->u.ci_fsync.fi_mode;
-		break;
-	}
-	case CIT_READ:
-	case CIT_WRITE: {
-		io->u.ci_wr.wr_sync = cl_io_is_sync_write(parent);
-		if (cl_io_is_append(parent)) {
-			io->u.ci_wr.wr_append = 1;
-		} else {
-			io->u.ci_rw.crw_pos = start;
-			io->u.ci_rw.crw_count = end - start;
-		}
-		break;
-	}
-	default:
-		break;
-	}
-}
-
-static int lov_io_sub_init(const struct lu_env *env, struct lov_io *lio,
-			   struct lov_io_sub *sub)
-{
-	struct lov_object *lov = lio->lis_object;
-	struct lov_device *ld  = lu2lov_dev(lov2cl(lov)->co_lu.lo_dev);
-	struct cl_io      *sub_io;
-	struct cl_object  *sub_obj;
-	struct cl_io      *io  = lio->lis_cl.cis_io;
-
-	int stripe = sub->sub_stripe;
-	int result;
-
-	LASSERT(sub->sub_io == NULL);
-	LASSERT(sub->sub_env == NULL);
-	LASSERT(sub->sub_stripe < lio->lis_stripe_count);
-
-	if (unlikely(lov_r0(lov)->lo_sub[stripe] == NULL))
-		return -EIO;
-
-	result = 0;
-	sub->sub_io_initialized = 0;
-	sub->sub_borrowed = 0;
-
-	if (lio->lis_mem_frozen) {
-		LASSERT(mutex_is_locked(&ld->ld_mutex));
-		sub->sub_io  = &ld->ld_emrg[stripe]->emrg_subio;
-		sub->sub_env = ld->ld_emrg[stripe]->emrg_env;
-		sub->sub_borrowed = 1;
-	} else {
-		void *cookie;
-
-		/* obtain new environment */
-		cookie = cl_env_reenter();
-		sub->sub_env = cl_env_get(&sub->sub_refcheck);
-		cl_env_reexit(cookie);
-		if (IS_ERR(sub->sub_env))
-			result = PTR_ERR(sub->sub_env);
-
-		if (result == 0) {
-			/*
-			 * First sub-io. Use ->lis_single_subio to
-			 * avoid dynamic allocation.
-			 */
-			if (lio->lis_active_subios == 0) {
-				sub->sub_io = &lio->lis_single_subio;
-				lio->lis_single_subio_index = stripe;
-			} else {
-				sub->sub_io = kzalloc(sizeof(*sub->sub_io),
-						      GFP_NOFS);
-				if (!sub->sub_io)
-					result = -ENOMEM;
-			}
-		}
-	}
-
-	if (result == 0) {
-		sub_obj = lovsub2cl(lov_r0(lov)->lo_sub[stripe]);
-		sub_io  = sub->sub_io;
-
-		sub_io->ci_obj    = sub_obj;
-		sub_io->ci_result = 0;
-
-		sub_io->ci_parent  = io;
-		sub_io->ci_lockreq = io->ci_lockreq;
-		sub_io->ci_type    = io->ci_type;
-		sub_io->ci_no_srvlock = io->ci_no_srvlock;
-		sub_io->ci_noatime = io->ci_noatime;
-
-		lov_sub_enter(sub);
-		result = cl_io_sub_init(sub->sub_env, sub_io,
-					io->ci_type, sub_obj);
-		lov_sub_exit(sub);
-		if (result >= 0) {
-			lio->lis_active_subios++;
-			sub->sub_io_initialized = 1;
-			result = 0;
-		}
-	}
-	if (result != 0)
-		lov_io_sub_fini(env, lio, sub);
-	return result;
-}
-
-struct lov_io_sub *lov_sub_get(const struct lu_env *env,
-			       struct lov_io *lio, int stripe)
-{
-	int rc;
-	struct lov_io_sub *sub = &lio->lis_subs[stripe];
-
-	LASSERT(stripe < lio->lis_stripe_count);
-
-	if (!sub->sub_io_initialized) {
-		sub->sub_stripe = stripe;
-		rc = lov_io_sub_init(env, lio, sub);
-	} else
-		rc = 0;
-	if (rc == 0)
-		lov_sub_enter(sub);
-	else
-		sub = ERR_PTR(rc);
-	return sub;
-}
-
-void lov_sub_put(struct lov_io_sub *sub)
-{
-	lov_sub_exit(sub);
-}
-
-/*****************************************************************************
- *
- * Lov io operations.
- *
- */
-
-static int lov_page_stripe(const struct cl_page *page)
-{
-	struct lovsub_object *subobj;
-
-	subobj = lu2lovsub(
-		lu_object_locate(page->cp_child->cp_obj->co_lu.lo_header,
-				 &lovsub_device_type));
-	LASSERT(subobj != NULL);
-	return subobj->lso_index;
-}
-
-struct lov_io_sub *lov_page_subio(const struct lu_env *env, struct lov_io *lio,
-				  const struct cl_page_slice *slice)
-{
-	struct lov_stripe_md *lsm  = lio->lis_object->lo_lsm;
-	struct cl_page       *page = slice->cpl_page;
-	int stripe;
-
-	LASSERT(lio->lis_cl.cis_io != NULL);
-	LASSERT(cl2lov(slice->cpl_obj) == lio->lis_object);
-	LASSERT(lsm != NULL);
-	LASSERT(lio->lis_nr_subios > 0);
-
-	stripe = lov_page_stripe(page);
-	return lov_sub_get(env, lio, stripe);
-}
-
-
-static int lov_io_subio_init(const struct lu_env *env, struct lov_io *lio,
-			     struct cl_io *io)
-{
-	struct lov_stripe_md *lsm = lio->lis_object->lo_lsm;
-	int result;
-
-	LASSERT(lio->lis_object != NULL);
-
-	/*
-	 * Need to be optimized, we can't afford to allocate a piece of memory
-	 * when writing a page. -jay
-	 */
-	lio->lis_subs =
-		libcfs_kvzalloc(lsm->lsm_stripe_count *
-				sizeof(lio->lis_subs[0]),
-				GFP_NOFS);
-	if (lio->lis_subs != NULL) {
-		lio->lis_nr_subios = lio->lis_stripe_count;
-		lio->lis_single_subio_index = -1;
-		lio->lis_active_subios = 0;
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-static void lov_io_slice_init(struct lov_io *lio,
-			      struct lov_object *obj, struct cl_io *io)
-{
-	io->ci_result = 0;
-	lio->lis_object = obj;
-
-	LASSERT(obj->lo_lsm != NULL);
-	lio->lis_stripe_count = obj->lo_lsm->lsm_stripe_count;
-
-	switch (io->ci_type) {
-	case CIT_READ:
-	case CIT_WRITE:
-		lio->lis_pos = io->u.ci_rw.crw_pos;
-		lio->lis_endpos = io->u.ci_rw.crw_pos + io->u.ci_rw.crw_count;
-		lio->lis_io_endpos = lio->lis_endpos;
-		if (cl_io_is_append(io)) {
-			LASSERT(io->ci_type == CIT_WRITE);
-			lio->lis_pos = 0;
-			lio->lis_endpos = OBD_OBJECT_EOF;
-		}
-		break;
-
-	case CIT_SETATTR:
-		if (cl_io_is_trunc(io))
-			lio->lis_pos = io->u.ci_setattr.sa_attr.lvb_size;
-		else
-			lio->lis_pos = 0;
-		lio->lis_endpos = OBD_OBJECT_EOF;
-		break;
-
-	case CIT_FAULT: {
-		pgoff_t index = io->u.ci_fault.ft_index;
-		lio->lis_pos = cl_offset(io->ci_obj, index);
-		lio->lis_endpos = cl_offset(io->ci_obj, index + 1);
-		break;
-	}
-
-	case CIT_FSYNC: {
-		lio->lis_pos = io->u.ci_fsync.fi_start;
-		lio->lis_endpos = io->u.ci_fsync.fi_end;
-		break;
-	}
-
-	case CIT_MISC:
-		lio->lis_pos = 0;
-		lio->lis_endpos = OBD_OBJECT_EOF;
-		break;
-
-	default:
-		LBUG();
-	}
-}
-
-static void lov_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	struct lov_io *lio = cl2lov_io(env, ios);
-	struct lov_object *lov = cl2lov(ios->cis_obj);
-	int i;
-
-	if (lio->lis_subs != NULL) {
-		for (i = 0; i < lio->lis_nr_subios; i++)
-			lov_io_sub_fini(env, lio, &lio->lis_subs[i]);
-		kvfree(lio->lis_subs);
-		lio->lis_nr_subios = 0;
-	}
-
-	LASSERT(atomic_read(&lov->lo_active_ios) > 0);
-	if (atomic_dec_and_test(&lov->lo_active_ios))
-		wake_up_all(&lov->lo_waitq);
-}
-
-static u64 lov_offset_mod(u64 val, int delta)
-{
-	if (val != OBD_OBJECT_EOF)
-		val += delta;
-	return val;
-}
-
-static int lov_io_iter_init(const struct lu_env *env,
-			    const struct cl_io_slice *ios)
-{
-	struct lov_io	*lio = cl2lov_io(env, ios);
-	struct lov_stripe_md *lsm = lio->lis_object->lo_lsm;
-	struct lov_io_sub    *sub;
-	u64 endpos;
-	u64 start;
-	u64 end;
-	int stripe;
-	int rc = 0;
-
-	endpos = lov_offset_mod(lio->lis_endpos, -1);
-	for (stripe = 0; stripe < lio->lis_stripe_count; stripe++) {
-		if (!lov_stripe_intersects(lsm, stripe, lio->lis_pos,
-					   endpos, &start, &end))
-			continue;
-
-		if (unlikely(lov_r0(lio->lis_object)->lo_sub[stripe] == NULL)) {
-			if (ios->cis_io->ci_type == CIT_READ ||
-			    ios->cis_io->ci_type == CIT_WRITE ||
-			    ios->cis_io->ci_type == CIT_FAULT)
-				return -EIO;
-
-			continue;
-		}
-
-		end = lov_offset_mod(end, 1);
-		sub = lov_sub_get(env, lio, stripe);
-		if (!IS_ERR(sub)) {
-			lov_io_sub_inherit(sub->sub_io, lio, stripe,
-					   start, end);
-			rc = cl_io_iter_init(sub->sub_env, sub->sub_io);
-			lov_sub_put(sub);
-			CDEBUG(D_VFSTRACE, "shrink: %d [%llu, %llu)\n",
-			       stripe, start, end);
-		} else
-			rc = PTR_ERR(sub);
-
-		if (!rc)
-			list_add_tail(&sub->sub_linkage, &lio->lis_active);
-		else
-			break;
-	}
-	return rc;
-}
-
-static int lov_io_rw_iter_init(const struct lu_env *env,
-			       const struct cl_io_slice *ios)
-{
-	struct lov_io	*lio = cl2lov_io(env, ios);
-	struct cl_io	 *io  = ios->cis_io;
-	struct lov_stripe_md *lsm = lio->lis_object->lo_lsm;
-	__u64 start = io->u.ci_rw.crw_pos;
-	loff_t next;
-	unsigned long ssize = lsm->lsm_stripe_size;
-
-	LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE);
-
-	/* fast path for common case. */
-	if (lio->lis_nr_subios != 1 && !cl_io_is_append(io)) {
-
-		lov_do_div64(start, ssize);
-		next = (start + 1) * ssize;
-		if (next <= start * ssize)
-			next = ~0ull;
-
-		io->ci_continue = next < lio->lis_io_endpos;
-		io->u.ci_rw.crw_count = min_t(loff_t, lio->lis_io_endpos,
-					      next) - io->u.ci_rw.crw_pos;
-		lio->lis_pos    = io->u.ci_rw.crw_pos;
-		lio->lis_endpos = io->u.ci_rw.crw_pos + io->u.ci_rw.crw_count;
-		CDEBUG(D_VFSTRACE, "stripe: %llu chunk: [%llu, %llu) %llu\n",
-		       (__u64)start, lio->lis_pos, lio->lis_endpos,
-		       (__u64)lio->lis_io_endpos);
-	}
-	/*
-	 * XXX The following call should be optimized: we know, that
-	 * [lio->lis_pos, lio->lis_endpos) intersects with exactly one stripe.
-	 */
-	return lov_io_iter_init(env, ios);
-}
-
-static int lov_io_call(const struct lu_env *env, struct lov_io *lio,
-		       int (*iofunc)(const struct lu_env *, struct cl_io *))
-{
-	struct cl_io *parent = lio->lis_cl.cis_io;
-	struct lov_io_sub *sub;
-	int rc = 0;
-
-	list_for_each_entry(sub, &lio->lis_active, sub_linkage) {
-		lov_sub_enter(sub);
-		rc = iofunc(sub->sub_env, sub->sub_io);
-		lov_sub_exit(sub);
-		if (rc)
-			break;
-
-		if (parent->ci_result == 0)
-			parent->ci_result = sub->sub_io->ci_result;
-	}
-	return rc;
-}
-
-static int lov_io_lock(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	return lov_io_call(env, cl2lov_io(env, ios), cl_io_lock);
-}
-
-static int lov_io_start(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	return lov_io_call(env, cl2lov_io(env, ios), cl_io_start);
-}
-
-static int lov_io_end_wrapper(const struct lu_env *env, struct cl_io *io)
-{
-	/*
-	 * It's possible that lov_io_start() wasn't called against this
-	 * sub-io, either because previous sub-io failed, or upper layer
-	 * completed IO.
-	 */
-	if (io->ci_state == CIS_IO_GOING)
-		cl_io_end(env, io);
-	else
-		io->ci_state = CIS_IO_FINISHED;
-	return 0;
-}
-
-static int lov_io_iter_fini_wrapper(const struct lu_env *env, struct cl_io *io)
-{
-	cl_io_iter_fini(env, io);
-	return 0;
-}
-
-static int lov_io_unlock_wrapper(const struct lu_env *env, struct cl_io *io)
-{
-	cl_io_unlock(env, io);
-	return 0;
-}
-
-static void lov_io_end(const struct lu_env *env, const struct cl_io_slice *ios)
-{
-	int rc;
-
-	rc = lov_io_call(env, cl2lov_io(env, ios), lov_io_end_wrapper);
-	LASSERT(rc == 0);
-}
-
-static void lov_io_iter_fini(const struct lu_env *env,
-			     const struct cl_io_slice *ios)
-{
-	struct lov_io *lio = cl2lov_io(env, ios);
-	int rc;
-
-	rc = lov_io_call(env, lio, lov_io_iter_fini_wrapper);
-	LASSERT(rc == 0);
-	while (!list_empty(&lio->lis_active))
-		list_del_init(lio->lis_active.next);
-}
-
-static void lov_io_unlock(const struct lu_env *env,
-			  const struct cl_io_slice *ios)
-{
-	int rc;
-
-	rc = lov_io_call(env, cl2lov_io(env, ios), lov_io_unlock_wrapper);
-	LASSERT(rc == 0);
-}
-
-
-static struct cl_page_list *lov_io_submit_qin(struct lov_device *ld,
-					      struct cl_page_list *qin,
-					      int idx, int alloc)
-{
-	return alloc ? &qin[idx] : &ld->ld_emrg[idx]->emrg_page_list;
-}
-
-/**
- * lov implementation of cl_operations::cio_submit() method. It takes a list
- * of pages in \a queue, splits it into per-stripe sub-lists, invokes
- * cl_io_submit() on underlying devices to submit sub-lists, and then splices
- * everything back.
- *
- * Major complication of this function is a need to handle memory cleansing:
- * cl_io_submit() is called to write out pages as a part of VM memory
- * reclamation, and hence it may not fail due to memory shortages (system
- * dead-locks otherwise). To deal with this, some resources (sub-lists,
- * sub-environment, etc.) are allocated per-device on "startup" (i.e., in a
- * not-memory cleansing context), and in case of memory shortage, these
- * pre-allocated resources are used by lov_io_submit() under
- * lov_device::ld_mutex mutex.
- */
-static int lov_io_submit(const struct lu_env *env,
-			 const struct cl_io_slice *ios,
-			 enum cl_req_type crt, struct cl_2queue *queue)
-{
-	struct lov_io	  *lio = cl2lov_io(env, ios);
-	struct lov_object      *obj = lio->lis_object;
-	struct lov_device       *ld = lu2lov_dev(lov2cl(obj)->co_lu.lo_dev);
-	struct cl_page_list    *qin = &queue->c2_qin;
-	struct cl_2queue      *cl2q = &lov_env_info(env)->lti_cl2q;
-	struct cl_page_list *stripes_qin = NULL;
-	struct cl_page *page;
-	struct cl_page *tmp;
-	int stripe;
-
-#define QIN(stripe) lov_io_submit_qin(ld, stripes_qin, stripe, alloc)
-
-	int rc = 0;
-	int alloc =
-		!(current->flags & PF_MEMALLOC);
-
-	if (lio->lis_active_subios == 1) {
-		int idx = lio->lis_single_subio_index;
-		struct lov_io_sub *sub;
-
-		LASSERT(idx < lio->lis_nr_subios);
-		sub = lov_sub_get(env, lio, idx);
-		LASSERT(!IS_ERR(sub));
-		LASSERT(sub->sub_io == &lio->lis_single_subio);
-		rc = cl_io_submit_rw(sub->sub_env, sub->sub_io,
-				     crt, queue);
-		lov_sub_put(sub);
-		return rc;
-	}
-
-	LASSERT(lio->lis_subs != NULL);
-	if (alloc) {
-		stripes_qin =
-			libcfs_kvzalloc(sizeof(*stripes_qin) *
-					lio->lis_nr_subios,
-					GFP_NOFS);
-		if (stripes_qin == NULL)
-			return -ENOMEM;
-
-		for (stripe = 0; stripe < lio->lis_nr_subios; stripe++)
-			cl_page_list_init(&stripes_qin[stripe]);
-	} else {
-		/*
-		 * If we get here, it means pageout & swap doesn't help.
-		 * In order to not make things worse, even don't try to
-		 * allocate the memory with __GFP_NOWARN. -jay
-		 */
-		mutex_lock(&ld->ld_mutex);
-		lio->lis_mem_frozen = 1;
-	}
-
-	cl_2queue_init(cl2q);
-	cl_page_list_for_each_safe(page, tmp, qin) {
-		stripe = lov_page_stripe(page);
-		cl_page_list_move(QIN(stripe), qin, page);
-	}
-
-	for (stripe = 0; stripe < lio->lis_nr_subios; stripe++) {
-		struct lov_io_sub   *sub;
-		struct cl_page_list *sub_qin = QIN(stripe);
-
-		if (list_empty(&sub_qin->pl_pages))
-			continue;
-
-		cl_page_list_splice(sub_qin, &cl2q->c2_qin);
-		sub = lov_sub_get(env, lio, stripe);
-		if (!IS_ERR(sub)) {
-			rc = cl_io_submit_rw(sub->sub_env, sub->sub_io,
-					     crt, cl2q);
-			lov_sub_put(sub);
-		} else
-			rc = PTR_ERR(sub);
-		cl_page_list_splice(&cl2q->c2_qin,  &queue->c2_qin);
-		cl_page_list_splice(&cl2q->c2_qout, &queue->c2_qout);
-		if (rc != 0)
-			break;
-	}
-
-	for (stripe = 0; stripe < lio->lis_nr_subios; stripe++) {
-		struct cl_page_list *sub_qin = QIN(stripe);
-
-		if (list_empty(&sub_qin->pl_pages))
-			continue;
-
-		cl_page_list_splice(sub_qin, qin);
-	}
-
-	if (alloc) {
-		kvfree(stripes_qin);
-	} else {
-		int i;
-
-		for (i = 0; i < lio->lis_nr_subios; i++) {
-			struct cl_io *cio = lio->lis_subs[i].sub_io;
-
-			if (cio && cio == &ld->ld_emrg[i]->emrg_subio)
-				lov_io_sub_fini(env, lio, &lio->lis_subs[i]);
-		}
-		lio->lis_mem_frozen = 0;
-		mutex_unlock(&ld->ld_mutex);
-	}
-
-	return rc;
-#undef QIN
-}
-
-static int lov_io_prepare_write(const struct lu_env *env,
-				const struct cl_io_slice *ios,
-				const struct cl_page_slice *slice,
-				unsigned from, unsigned to)
-{
-	struct lov_io     *lio      = cl2lov_io(env, ios);
-	struct cl_page    *sub_page = lov_sub_page(slice);
-	struct lov_io_sub *sub;
-	int result;
-
-	sub = lov_page_subio(env, lio, slice);
-	if (!IS_ERR(sub)) {
-		result = cl_io_prepare_write(sub->sub_env, sub->sub_io,
-					     sub_page, from, to);
-		lov_sub_put(sub);
-	} else
-		result = PTR_ERR(sub);
-	return result;
-}
-
-static int lov_io_commit_write(const struct lu_env *env,
-			       const struct cl_io_slice *ios,
-			       const struct cl_page_slice *slice,
-			       unsigned from, unsigned to)
-{
-	struct lov_io     *lio      = cl2lov_io(env, ios);
-	struct cl_page    *sub_page = lov_sub_page(slice);
-	struct lov_io_sub *sub;
-	int result;
-
-	sub = lov_page_subio(env, lio, slice);
-	if (!IS_ERR(sub)) {
-		result = cl_io_commit_write(sub->sub_env, sub->sub_io,
-					    sub_page, from, to);
-		lov_sub_put(sub);
-	} else
-		result = PTR_ERR(sub);
-	return result;
-}
-
-static int lov_io_fault_start(const struct lu_env *env,
-			      const struct cl_io_slice *ios)
-{
-	struct cl_fault_io *fio;
-	struct lov_io      *lio;
-	struct lov_io_sub  *sub;
-
-	fio = &ios->cis_io->u.ci_fault;
-	lio = cl2lov_io(env, ios);
-	sub = lov_sub_get(env, lio, lov_page_stripe(fio->ft_page));
-	sub->sub_io->u.ci_fault.ft_nob = fio->ft_nob;
-	lov_sub_put(sub);
-	return lov_io_start(env, ios);
-}
-
-static void lov_io_fsync_end(const struct lu_env *env,
-			     const struct cl_io_slice *ios)
-{
-	struct lov_io *lio = cl2lov_io(env, ios);
-	struct lov_io_sub *sub;
-	unsigned int *written = &ios->cis_io->u.ci_fsync.fi_nr_written;
-
-	*written = 0;
-	list_for_each_entry(sub, &lio->lis_active, sub_linkage) {
-		struct cl_io *subio = sub->sub_io;
-
-		lov_sub_enter(sub);
-		lov_io_end_wrapper(sub->sub_env, subio);
-		lov_sub_exit(sub);
-
-		if (subio->ci_result == 0)
-			*written += subio->u.ci_fsync.fi_nr_written;
-	}
-}
-
-static const struct cl_io_operations lov_io_ops = {
-	.op = {
-		[CIT_READ] = {
-			.cio_fini      = lov_io_fini,
-			.cio_iter_init = lov_io_rw_iter_init,
-			.cio_iter_fini = lov_io_iter_fini,
-			.cio_lock      = lov_io_lock,
-			.cio_unlock    = lov_io_unlock,
-			.cio_start     = lov_io_start,
-			.cio_end       = lov_io_end
-		},
-		[CIT_WRITE] = {
-			.cio_fini      = lov_io_fini,
-			.cio_iter_init = lov_io_rw_iter_init,
-			.cio_iter_fini = lov_io_iter_fini,
-			.cio_lock      = lov_io_lock,
-			.cio_unlock    = lov_io_unlock,
-			.cio_start     = lov_io_start,
-			.cio_end       = lov_io_end
-		},
-		[CIT_SETATTR] = {
-			.cio_fini      = lov_io_fini,
-			.cio_iter_init = lov_io_iter_init,
-			.cio_iter_fini = lov_io_iter_fini,
-			.cio_lock      = lov_io_lock,
-			.cio_unlock    = lov_io_unlock,
-			.cio_start     = lov_io_start,
-			.cio_end       = lov_io_end
-		},
-		[CIT_FAULT] = {
-			.cio_fini      = lov_io_fini,
-			.cio_iter_init = lov_io_iter_init,
-			.cio_iter_fini = lov_io_iter_fini,
-			.cio_lock      = lov_io_lock,
-			.cio_unlock    = lov_io_unlock,
-			.cio_start     = lov_io_fault_start,
-			.cio_end       = lov_io_end
-		},
-		[CIT_FSYNC] = {
-			.cio_fini      = lov_io_fini,
-			.cio_iter_init = lov_io_iter_init,
-			.cio_iter_fini = lov_io_iter_fini,
-			.cio_lock      = lov_io_lock,
-			.cio_unlock    = lov_io_unlock,
-			.cio_start     = lov_io_start,
-			.cio_end       = lov_io_fsync_end
-		},
-		[CIT_MISC] = {
-			.cio_fini   = lov_io_fini
-		}
-	},
-	.req_op = {
-		 [CRT_READ] = {
-			 .cio_submit    = lov_io_submit
-		 },
-		 [CRT_WRITE] = {
-			 .cio_submit    = lov_io_submit
-		 }
-	 },
-	.cio_prepare_write = lov_io_prepare_write,
-	.cio_commit_write  = lov_io_commit_write
-};
-
-/*****************************************************************************
- *
- * Empty lov io operations.
- *
- */
-
-static void lov_empty_io_fini(const struct lu_env *env,
-			      const struct cl_io_slice *ios)
-{
-	struct lov_object *lov = cl2lov(ios->cis_obj);
-
-	if (atomic_dec_and_test(&lov->lo_active_ios))
-		wake_up_all(&lov->lo_waitq);
-}
-
-static void lov_empty_impossible(const struct lu_env *env,
-				 struct cl_io_slice *ios)
-{
-	LBUG();
-}
-
-#define LOV_EMPTY_IMPOSSIBLE ((void *)lov_empty_impossible)
-
-/**
- * An io operation vector for files without stripes.
- */
-static const struct cl_io_operations lov_empty_io_ops = {
-	.op = {
-		[CIT_READ] = {
-			.cio_fini       = lov_empty_io_fini,
-#if 0
-			.cio_iter_init  = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock       = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end	= LOV_EMPTY_IMPOSSIBLE
-#endif
-		},
-		[CIT_WRITE] = {
-			.cio_fini      = lov_empty_io_fini,
-			.cio_iter_init = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start     = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end       = LOV_EMPTY_IMPOSSIBLE
-		},
-		[CIT_SETATTR] = {
-			.cio_fini      = lov_empty_io_fini,
-			.cio_iter_init = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start     = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end       = LOV_EMPTY_IMPOSSIBLE
-		},
-		[CIT_FAULT] = {
-			.cio_fini      = lov_empty_io_fini,
-			.cio_iter_init = LOV_EMPTY_IMPOSSIBLE,
-			.cio_lock      = LOV_EMPTY_IMPOSSIBLE,
-			.cio_start     = LOV_EMPTY_IMPOSSIBLE,
-			.cio_end       = LOV_EMPTY_IMPOSSIBLE
-		},
-		[CIT_FSYNC] = {
-			.cio_fini   = lov_empty_io_fini
-		},
-		[CIT_MISC] = {
-			.cio_fini   = lov_empty_io_fini
-		}
-	},
-	.req_op = {
-		 [CRT_READ] = {
-			 .cio_submit    = LOV_EMPTY_IMPOSSIBLE
-		 },
-		 [CRT_WRITE] = {
-			 .cio_submit    = LOV_EMPTY_IMPOSSIBLE
-		 }
-	 },
-	.cio_commit_write = LOV_EMPTY_IMPOSSIBLE
-};
-
-int lov_io_init_raid0(const struct lu_env *env, struct cl_object *obj,
-		      struct cl_io *io)
-{
-	struct lov_io       *lio = lov_env_io(env);
-	struct lov_object   *lov = cl2lov(obj);
-
-	INIT_LIST_HEAD(&lio->lis_active);
-	lov_io_slice_init(lio, lov, io);
-	if (io->ci_result == 0) {
-		io->ci_result = lov_io_subio_init(env, lio, io);
-		if (io->ci_result == 0) {
-			cl_io_slice_add(io, &lio->lis_cl, obj, &lov_io_ops);
-			atomic_inc(&lov->lo_active_ios);
-		}
-	}
-	return io->ci_result;
-}
-
-int lov_io_init_empty(const struct lu_env *env, struct cl_object *obj,
-		      struct cl_io *io)
-{
-	struct lov_object *lov = cl2lov(obj);
-	struct lov_io *lio = lov_env_io(env);
-	int result;
-
-	lio->lis_object = lov;
-	switch (io->ci_type) {
-	default:
-		LBUG();
-	case CIT_MISC:
-	case CIT_READ:
-		result = 0;
-		break;
-	case CIT_FSYNC:
-	case CIT_SETATTR:
-		result = 1;
-		break;
-	case CIT_WRITE:
-		result = -EBADF;
-		break;
-	case CIT_FAULT:
-		result = -EFAULT;
-		CERROR("Page fault on a file without stripes: "DFID"\n",
-		       PFID(lu_object_fid(&obj->co_lu)));
-		break;
-	}
-	if (result == 0) {
-		cl_io_slice_add(io, &lio->lis_cl, obj, &lov_empty_io_ops);
-		atomic_inc(&lov->lo_active_ios);
-	}
-
-	io->ci_result = result < 0 ? result : 0;
-	return result != 0;
-}
-
-int lov_io_init_released(const struct lu_env *env, struct cl_object *obj,
-			struct cl_io *io)
-{
-	struct lov_object *lov = cl2lov(obj);
-	struct lov_io *lio = lov_env_io(env);
-	int result;
-
-	LASSERT(lov->lo_lsm != NULL);
-	lio->lis_object = lov;
-
-	switch (io->ci_type) {
-	default:
-		LASSERTF(0, "invalid type %d\n", io->ci_type);
-	case CIT_MISC:
-	case CIT_FSYNC:
-		result = 1;
-		break;
-	case CIT_SETATTR:
-		/* the truncate to 0 is managed by MDT:
-		 * - in open, for open O_TRUNC
-		 * - in setattr, for truncate
-		 */
-		/* the truncate is for size > 0 so triggers a restore */
-		if (cl_io_is_trunc(io))
-			io->ci_restore_needed = 1;
-		result = -ENODATA;
-		break;
-	case CIT_READ:
-	case CIT_WRITE:
-	case CIT_FAULT:
-		io->ci_restore_needed = 1;
-		result = -ENODATA;
-		break;
-	}
-	if (result == 0) {
-		cl_io_slice_add(io, &lio->lis_cl, obj, &lov_empty_io_ops);
-		atomic_inc(&lov->lo_active_ios);
-	}
-
-	io->ci_result = result < 0 ? result : 0;
-	return result != 0;
-}
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
deleted file mode 100644
index a6938085ff24..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ /dev/null
@@ -1,1197 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_lock for LOV layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-static struct cl_lock_closure *lov_closure_get(const struct lu_env *env,
-					       struct cl_lock *parent);
-
-static int lov_lock_unuse(const struct lu_env *env,
-			  const struct cl_lock_slice *slice);
-/*****************************************************************************
- *
- * Lov lock operations.
- *
- */
-
-static struct lov_sublock_env *lov_sublock_env_get(const struct lu_env *env,
-						   struct cl_lock *parent,
-						   struct lov_lock_sub *lls)
-{
-	struct lov_sublock_env *subenv;
-	struct lov_io	  *lio    = lov_env_io(env);
-	struct cl_io	   *io     = lio->lis_cl.cis_io;
-	struct lov_io_sub      *sub;
-
-	subenv = &lov_env_session(env)->ls_subenv;
-
-	/*
-	 * FIXME: We tend to use the subio's env & io to call the sublock
-	 * lock operations because osc lock sometimes stores some control
-	 * variables in thread's IO information(Now only lockless information).
-	 * However, if the lock's host(object) is different from the object
-	 * for current IO, we have no way to get the subenv and subio because
-	 * they are not initialized at all. As a temp fix, in this case,
-	 * we still borrow the parent's env to call sublock operations.
-	 */
-	if (!io || !cl_object_same(io->ci_obj, parent->cll_descr.cld_obj)) {
-		subenv->lse_env = env;
-		subenv->lse_io  = io;
-		subenv->lse_sub = NULL;
-	} else {
-		sub = lov_sub_get(env, lio, lls->sub_stripe);
-		if (!IS_ERR(sub)) {
-			subenv->lse_env = sub->sub_env;
-			subenv->lse_io  = sub->sub_io;
-			subenv->lse_sub = sub;
-		} else {
-			subenv = (void *)sub;
-		}
-	}
-	return subenv;
-}
-
-static void lov_sublock_env_put(struct lov_sublock_env *subenv)
-{
-	if (subenv && subenv->lse_sub)
-		lov_sub_put(subenv->lse_sub);
-}
-
-static void lov_sublock_adopt(const struct lu_env *env, struct lov_lock *lck,
-			      struct cl_lock *sublock, int idx,
-			      struct lov_lock_link *link)
-{
-	struct lovsub_lock *lsl;
-	struct cl_lock     *parent = lck->lls_cl.cls_lock;
-	int		 rc;
-
-	LASSERT(cl_lock_is_mutexed(parent));
-	LASSERT(cl_lock_is_mutexed(sublock));
-
-	lsl = cl2sub_lock(sublock);
-	/*
-	 * check that sub-lock doesn't have lock link to this top-lock.
-	 */
-	LASSERT(lov_lock_link_find(env, lck, lsl) == NULL);
-	LASSERT(idx < lck->lls_nr);
-
-	lck->lls_sub[idx].sub_lock = lsl;
-	lck->lls_nr_filled++;
-	LASSERT(lck->lls_nr_filled <= lck->lls_nr);
-	list_add_tail(&link->lll_list, &lsl->lss_parents);
-	link->lll_idx = idx;
-	link->lll_super = lck;
-	cl_lock_get(parent);
-	lu_ref_add(&parent->cll_reference, "lov-child", sublock);
-	lck->lls_sub[idx].sub_flags |= LSF_HELD;
-	cl_lock_user_add(env, sublock);
-
-	rc = lov_sublock_modify(env, lck, lsl, &sublock->cll_descr, idx);
-	LASSERT(rc == 0); /* there is no way this can fail, currently */
-}
-
-static struct cl_lock *lov_sublock_alloc(const struct lu_env *env,
-					 const struct cl_io *io,
-					 struct lov_lock *lck,
-					 int idx, struct lov_lock_link **out)
-{
-	struct cl_lock       *sublock;
-	struct cl_lock       *parent;
-	struct lov_lock_link *link;
-
-	LASSERT(idx < lck->lls_nr);
-
-	OBD_SLAB_ALLOC_PTR_GFP(link, lov_lock_link_kmem, GFP_NOFS);
-	if (link != NULL) {
-		struct lov_sublock_env *subenv;
-		struct lov_lock_sub  *lls;
-		struct cl_lock_descr *descr;
-
-		parent = lck->lls_cl.cls_lock;
-		lls    = &lck->lls_sub[idx];
-		descr  = &lls->sub_got;
-
-		subenv = lov_sublock_env_get(env, parent, lls);
-		if (!IS_ERR(subenv)) {
-			/* CAVEAT: Don't try to add a field in lov_lock_sub
-			 * to remember the subio. This is because lock is able
-			 * to be cached, but this is not true for IO. This
-			 * further means a sublock might be referenced in
-			 * different io context. -jay */
-
-			sublock = cl_lock_hold(subenv->lse_env, subenv->lse_io,
-					       descr, "lov-parent", parent);
-			lov_sublock_env_put(subenv);
-		} else {
-			/* error occurs. */
-			sublock = (void *)subenv;
-		}
-
-		if (!IS_ERR(sublock))
-			*out = link;
-		else
-			OBD_SLAB_FREE_PTR(link, lov_lock_link_kmem);
-	} else
-		sublock = ERR_PTR(-ENOMEM);
-	return sublock;
-}
-
-static void lov_sublock_unlock(const struct lu_env *env,
-			       struct lovsub_lock *lsl,
-			       struct cl_lock_closure *closure,
-			       struct lov_sublock_env *subenv)
-{
-	lov_sublock_env_put(subenv);
-	lsl->lss_active = NULL;
-	cl_lock_disclosure(env, closure);
-}
-
-static int lov_sublock_lock(const struct lu_env *env,
-			    struct lov_lock *lck,
-			    struct lov_lock_sub *lls,
-			    struct cl_lock_closure *closure,
-			    struct lov_sublock_env **lsep)
-{
-	struct lovsub_lock *sublock;
-	struct cl_lock     *child;
-	int		 result = 0;
-
-	LASSERT(list_empty(&closure->clc_list));
-
-	sublock = lls->sub_lock;
-	child = sublock->lss_cl.cls_lock;
-	result = cl_lock_closure_build(env, child, closure);
-	if (result == 0) {
-		struct cl_lock *parent = closure->clc_origin;
-
-		LASSERT(cl_lock_is_mutexed(child));
-		sublock->lss_active = parent;
-
-		if (unlikely((child->cll_state == CLS_FREEING) ||
-			     (child->cll_flags & CLF_CANCELLED))) {
-			struct lov_lock_link *link;
-			/*
-			 * we could race with lock deletion which temporarily
-			 * put the lock in freeing state, bug 19080.
-			 */
-			LASSERT(!(lls->sub_flags & LSF_HELD));
-
-			link = lov_lock_link_find(env, lck, sublock);
-			LASSERT(link != NULL);
-			lov_lock_unlink(env, link, sublock);
-			lov_sublock_unlock(env, sublock, closure, NULL);
-			lck->lls_cancel_race = 1;
-			result = CLO_REPEAT;
-		} else if (lsep) {
-			struct lov_sublock_env *subenv;
-			subenv = lov_sublock_env_get(env, parent, lls);
-			if (IS_ERR(subenv)) {
-				lov_sublock_unlock(env, sublock,
-						   closure, NULL);
-				result = PTR_ERR(subenv);
-			} else {
-				*lsep = subenv;
-			}
-		}
-	}
-	return result;
-}
-
-/**
- * Updates the result of a top-lock operation from a result of sub-lock
- * sub-operations. Top-operations like lov_lock_{enqueue,use,unuse}() iterate
- * over sub-locks and lov_subresult() is used to calculate return value of a
- * top-operation. To this end, possible return values of sub-operations are
- * ordered as
- *
- *     - 0		  success
- *     - CLO_WAIT	   wait for event
- *     - CLO_REPEAT	 repeat top-operation
- *     - -ne		fundamental error
- *
- * Top-level return code can only go down through this list. CLO_REPEAT
- * overwrites CLO_WAIT, because lock mutex was released and sleeping condition
- * has to be rechecked by the upper layer.
- */
-static int lov_subresult(int result, int rc)
-{
-	int result_rank;
-	int rc_rank;
-
-	LASSERTF(result <= 0 || result == CLO_REPEAT || result == CLO_WAIT,
-		 "result = %d", result);
-	LASSERTF(rc <= 0 || rc == CLO_REPEAT || rc == CLO_WAIT,
-		 "rc = %d\n", rc);
-	CLASSERT(CLO_WAIT < CLO_REPEAT);
-
-	/* calculate ranks in the ordering above */
-	result_rank = result < 0 ? 1 + CLO_REPEAT : result;
-	rc_rank = rc < 0 ? 1 + CLO_REPEAT : rc;
-
-	if (result_rank < rc_rank)
-		result = rc;
-	return result;
-}
-
-/**
- * Creates sub-locks for a given lov_lock for the first time.
- *
- * Goes through all sub-objects of top-object, and creates sub-locks on every
- * sub-object intersecting with top-lock extent. This is complicated by the
- * fact that top-lock (that is being created) can be accessed concurrently
- * through already created sub-locks (possibly shared with other top-locks).
- */
-static int lov_lock_sub_init(const struct lu_env *env,
-			     struct lov_lock *lck, const struct cl_io *io)
-{
-	int result = 0;
-	int i;
-	int nr;
-	u64 start;
-	u64 end;
-	u64 file_start;
-	u64 file_end;
-
-	struct lov_object       *loo    = cl2lov(lck->lls_cl.cls_obj);
-	struct lov_layout_raid0 *r0     = lov_r0(loo);
-	struct cl_lock	  *parent = lck->lls_cl.cls_lock;
-
-	lck->lls_orig = parent->cll_descr;
-	file_start = cl_offset(lov2cl(loo), parent->cll_descr.cld_start);
-	file_end   = cl_offset(lov2cl(loo), parent->cll_descr.cld_end + 1) - 1;
-
-	for (i = 0, nr = 0; i < r0->lo_nr; i++) {
-		/*
-		 * XXX for wide striping smarter algorithm is desirable,
-		 * breaking out of the loop, early.
-		 */
-		if (likely(r0->lo_sub[i] != NULL) &&
-		    lov_stripe_intersects(loo->lo_lsm, i,
-					  file_start, file_end, &start, &end))
-			nr++;
-	}
-	LASSERT(nr > 0);
-	lck->lls_sub = libcfs_kvzalloc(nr * sizeof(lck->lls_sub[0]), GFP_NOFS);
-	if (lck->lls_sub == NULL)
-		return -ENOMEM;
-
-	lck->lls_nr = nr;
-	/*
-	 * First, fill in sub-lock descriptions in
-	 * lck->lls_sub[].sub_descr. They are used by lov_sublock_alloc()
-	 * (called below in this function, and by lov_lock_enqueue()) to
-	 * create sub-locks. At this moment, no other thread can access
-	 * top-lock.
-	 */
-	for (i = 0, nr = 0; i < r0->lo_nr; ++i) {
-		if (likely(r0->lo_sub[i] != NULL) &&
-		    lov_stripe_intersects(loo->lo_lsm, i,
-					  file_start, file_end, &start, &end)) {
-			struct cl_lock_descr *descr;
-
-			descr = &lck->lls_sub[nr].sub_descr;
-
-			LASSERT(descr->cld_obj == NULL);
-			descr->cld_obj   = lovsub2cl(r0->lo_sub[i]);
-			descr->cld_start = cl_index(descr->cld_obj, start);
-			descr->cld_end   = cl_index(descr->cld_obj, end);
-			descr->cld_mode  = parent->cll_descr.cld_mode;
-			descr->cld_gid   = parent->cll_descr.cld_gid;
-			descr->cld_enq_flags   = parent->cll_descr.cld_enq_flags;
-			/* XXX has no effect */
-			lck->lls_sub[nr].sub_got = *descr;
-			lck->lls_sub[nr].sub_stripe = i;
-			nr++;
-		}
-	}
-	LASSERT(nr == lck->lls_nr);
-
-	/*
-	 * Some sub-locks can be missing at this point. This is not a problem,
-	 * because enqueue will create them anyway. Main duty of this function
-	 * is to fill in sub-lock descriptions in a race free manner.
-	 */
-	return result;
-}
-
-static int lov_sublock_release(const struct lu_env *env, struct lov_lock *lck,
-			       int i, int deluser, int rc)
-{
-	struct cl_lock *parent = lck->lls_cl.cls_lock;
-
-	LASSERT(cl_lock_is_mutexed(parent));
-
-	if (lck->lls_sub[i].sub_flags & LSF_HELD) {
-		struct cl_lock    *sublock;
-		int dying;
-
-		LASSERT(lck->lls_sub[i].sub_lock != NULL);
-		sublock = lck->lls_sub[i].sub_lock->lss_cl.cls_lock;
-		LASSERT(cl_lock_is_mutexed(sublock));
-
-		lck->lls_sub[i].sub_flags &= ~LSF_HELD;
-		if (deluser)
-			cl_lock_user_del(env, sublock);
-		/*
-		 * If the last hold is released, and cancellation is pending
-		 * for a sub-lock, release parent mutex, to avoid keeping it
-		 * while sub-lock is being paged out.
-		 */
-		dying = (sublock->cll_descr.cld_mode == CLM_PHANTOM ||
-			 sublock->cll_descr.cld_mode == CLM_GROUP ||
-			 (sublock->cll_flags & (CLF_CANCELPEND|CLF_DOOMED))) &&
-			sublock->cll_holds == 1;
-		if (dying)
-			cl_lock_mutex_put(env, parent);
-		cl_lock_unhold(env, sublock, "lov-parent", parent);
-		if (dying) {
-			cl_lock_mutex_get(env, parent);
-			rc = lov_subresult(rc, CLO_REPEAT);
-		}
-		/*
-		 * From now on lck->lls_sub[i].sub_lock is a "weak" pointer,
-		 * not backed by a reference on a
-		 * sub-lock. lovsub_lock_delete() will clear
-		 * lck->lls_sub[i].sub_lock under semaphores, just before
-		 * sub-lock is destroyed.
-		 */
-	}
-	return rc;
-}
-
-static void lov_sublock_hold(const struct lu_env *env, struct lov_lock *lck,
-			     int i)
-{
-	struct cl_lock *parent = lck->lls_cl.cls_lock;
-
-	LASSERT(cl_lock_is_mutexed(parent));
-
-	if (!(lck->lls_sub[i].sub_flags & LSF_HELD)) {
-		struct cl_lock *sublock;
-
-		LASSERT(lck->lls_sub[i].sub_lock != NULL);
-		sublock = lck->lls_sub[i].sub_lock->lss_cl.cls_lock;
-		LASSERT(cl_lock_is_mutexed(sublock));
-		LASSERT(sublock->cll_state != CLS_FREEING);
-
-		lck->lls_sub[i].sub_flags |= LSF_HELD;
-
-		cl_lock_get_trust(sublock);
-		cl_lock_hold_add(env, sublock, "lov-parent", parent);
-		cl_lock_user_add(env, sublock);
-		cl_lock_put(env, sublock);
-	}
-}
-
-static void lov_lock_fini(const struct lu_env *env,
-			  struct cl_lock_slice *slice)
-{
-	struct lov_lock *lck;
-	int i;
-
-	lck = cl2lov_lock(slice);
-	LASSERT(lck->lls_nr_filled == 0);
-	if (lck->lls_sub != NULL) {
-		for (i = 0; i < lck->lls_nr; ++i)
-			/*
-			 * No sub-locks exists at this point, as sub-lock has
-			 * a reference on its parent.
-			 */
-			LASSERT(lck->lls_sub[i].sub_lock == NULL);
-		kvfree(lck->lls_sub);
-	}
-	OBD_SLAB_FREE_PTR(lck, lov_lock_kmem);
-}
-
-static int lov_lock_enqueue_wait(const struct lu_env *env,
-				 struct lov_lock *lck,
-				 struct cl_lock *sublock)
-{
-	struct cl_lock *lock = lck->lls_cl.cls_lock;
-	int	     result;
-
-	LASSERT(cl_lock_is_mutexed(lock));
-
-	cl_lock_mutex_put(env, lock);
-	result = cl_lock_enqueue_wait(env, sublock, 0);
-	cl_lock_mutex_get(env, lock);
-	return result ?: CLO_REPEAT;
-}
-
-/**
- * Tries to advance a state machine of a given sub-lock toward enqueuing of
- * the top-lock.
- *
- * \retval 0 if state-transition can proceed
- * \retval -ve otherwise.
- */
-static int lov_lock_enqueue_one(const struct lu_env *env, struct lov_lock *lck,
-				struct cl_lock *sublock,
-				struct cl_io *io, __u32 enqflags, int last)
-{
-	int result;
-
-	/* first, try to enqueue a sub-lock ... */
-	result = cl_enqueue_try(env, sublock, io, enqflags);
-	if ((sublock->cll_state == CLS_ENQUEUED) && !(enqflags & CEF_AGL)) {
-		/* if it is enqueued, try to `wait' on it---maybe it's already
-		 * granted */
-		result = cl_wait_try(env, sublock);
-		if (result == CLO_REENQUEUED)
-			result = CLO_WAIT;
-	}
-	/*
-	 * If CEF_ASYNC flag is set, then all sub-locks can be enqueued in
-	 * parallel, otherwise---enqueue has to wait until sub-lock is granted
-	 * before proceeding to the next one.
-	 */
-	if ((result == CLO_WAIT) && (sublock->cll_state <= CLS_HELD) &&
-	    (enqflags & CEF_ASYNC) && (!last || (enqflags & CEF_AGL)))
-		result = 0;
-	return result;
-}
-
-/**
- * Helper function for lov_lock_enqueue() that creates missing sub-lock.
- */
-static int lov_sublock_fill(const struct lu_env *env, struct cl_lock *parent,
-			    struct cl_io *io, struct lov_lock *lck, int idx)
-{
-	struct lov_lock_link *link = NULL;
-	struct cl_lock       *sublock;
-	int		   result;
-
-	LASSERT(parent->cll_depth == 1);
-	cl_lock_mutex_put(env, parent);
-	sublock = lov_sublock_alloc(env, io, lck, idx, &link);
-	if (!IS_ERR(sublock))
-		cl_lock_mutex_get(env, sublock);
-	cl_lock_mutex_get(env, parent);
-
-	if (!IS_ERR(sublock)) {
-		cl_lock_get_trust(sublock);
-		if (parent->cll_state == CLS_QUEUING &&
-		    lck->lls_sub[idx].sub_lock == NULL) {
-			lov_sublock_adopt(env, lck, sublock, idx, link);
-		} else {
-			OBD_SLAB_FREE_PTR(link, lov_lock_link_kmem);
-			/* other thread allocated sub-lock, or enqueue is no
-			 * longer going on */
-			cl_lock_mutex_put(env, parent);
-			cl_lock_unhold(env, sublock, "lov-parent", parent);
-			cl_lock_mutex_get(env, parent);
-		}
-		cl_lock_mutex_put(env, sublock);
-		cl_lock_put(env, sublock);
-		result = CLO_REPEAT;
-	} else
-		result = PTR_ERR(sublock);
-	return result;
-}
-
-/**
- * Implementation of cl_lock_operations::clo_enqueue() for lov layer. This
- * function is rather subtle, as it enqueues top-lock (i.e., advances top-lock
- * state machine from CLS_QUEUING to CLS_ENQUEUED states) by juggling sub-lock
- * state machines in the face of sub-locks sharing (by multiple top-locks),
- * and concurrent sub-lock cancellations.
- */
-static int lov_lock_enqueue(const struct lu_env *env,
-			    const struct cl_lock_slice *slice,
-			    struct cl_io *io, __u32 enqflags)
-{
-	struct cl_lock	 *lock    = slice->cls_lock;
-	struct lov_lock	*lck     = cl2lov_lock(slice);
-	struct cl_lock_closure *closure = lov_closure_get(env, lock);
-	int i;
-	int result;
-	enum cl_lock_state minstate;
-
-	for (result = 0, minstate = CLS_FREEING, i = 0; i < lck->lls_nr; ++i) {
-		int rc;
-		struct lovsub_lock     *sub;
-		struct lov_lock_sub    *lls;
-		struct cl_lock	 *sublock;
-		struct lov_sublock_env *subenv;
-
-		if (lock->cll_state != CLS_QUEUING) {
-			/*
-			 * Lock might have left QUEUING state if previous
-			 * iteration released its mutex. Stop enqueing in this
-			 * case and let the upper layer to decide what to do.
-			 */
-			LASSERT(i > 0 && result != 0);
-			break;
-		}
-
-		lls = &lck->lls_sub[i];
-		sub = lls->sub_lock;
-		/*
-		 * Sub-lock might have been canceled, while top-lock was
-		 * cached.
-		 */
-		if (sub == NULL) {
-			result = lov_sublock_fill(env, lock, io, lck, i);
-			/* lov_sublock_fill() released @lock mutex,
-			 * restart. */
-			break;
-		}
-		sublock = sub->lss_cl.cls_lock;
-		rc = lov_sublock_lock(env, lck, lls, closure, &subenv);
-		if (rc == 0) {
-			lov_sublock_hold(env, lck, i);
-			rc = lov_lock_enqueue_one(subenv->lse_env, lck, sublock,
-						  subenv->lse_io, enqflags,
-						  i == lck->lls_nr - 1);
-			minstate = min(minstate, sublock->cll_state);
-			if (rc == CLO_WAIT) {
-				switch (sublock->cll_state) {
-				case CLS_QUEUING:
-					/* take recursive mutex, the lock is
-					 * released in lov_lock_enqueue_wait.
-					 */
-					cl_lock_mutex_get(env, sublock);
-					lov_sublock_unlock(env, sub, closure,
-							   subenv);
-					rc = lov_lock_enqueue_wait(env, lck,
-								   sublock);
-					break;
-				case CLS_CACHED:
-					cl_lock_get(sublock);
-					/* take recursive mutex of sublock */
-					cl_lock_mutex_get(env, sublock);
-					/* need to release all locks in closure
-					 * otherwise it may deadlock. LU-2683.*/
-					lov_sublock_unlock(env, sub, closure,
-							   subenv);
-					/* sublock and parent are held. */
-					rc = lov_sublock_release(env, lck, i,
-								 1, rc);
-					cl_lock_mutex_put(env, sublock);
-					cl_lock_put(env, sublock);
-					break;
-				default:
-					lov_sublock_unlock(env, sub, closure,
-							   subenv);
-					break;
-				}
-			} else {
-				LASSERT(sublock->cll_conflict == NULL);
-				lov_sublock_unlock(env, sub, closure, subenv);
-			}
-		}
-		result = lov_subresult(result, rc);
-		if (result != 0)
-			break;
-	}
-	cl_lock_closure_fini(closure);
-	return result ?: minstate >= CLS_ENQUEUED ? 0 : CLO_WAIT;
-}
-
-static int lov_lock_unuse(const struct lu_env *env,
-			  const struct cl_lock_slice *slice)
-{
-	struct lov_lock	*lck     = cl2lov_lock(slice);
-	struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock);
-	int i;
-	int result;
-
-	for (result = 0, i = 0; i < lck->lls_nr; ++i) {
-		int rc;
-		struct lovsub_lock     *sub;
-		struct cl_lock	 *sublock;
-		struct lov_lock_sub    *lls;
-		struct lov_sublock_env *subenv;
-
-		/* top-lock state cannot change concurrently, because single
-		 * thread (one that released the last hold) carries unlocking
-		 * to the completion. */
-		LASSERT(slice->cls_lock->cll_state == CLS_INTRANSIT);
-		lls = &lck->lls_sub[i];
-		sub = lls->sub_lock;
-		if (sub == NULL)
-			continue;
-
-		sublock = sub->lss_cl.cls_lock;
-		rc = lov_sublock_lock(env, lck, lls, closure, &subenv);
-		if (rc == 0) {
-			if (lls->sub_flags & LSF_HELD) {
-				LASSERT(sublock->cll_state == CLS_HELD ||
-					sublock->cll_state == CLS_ENQUEUED);
-				rc = cl_unuse_try(subenv->lse_env, sublock);
-				rc = lov_sublock_release(env, lck, i, 0, rc);
-			}
-			lov_sublock_unlock(env, sub, closure, subenv);
-		}
-		result = lov_subresult(result, rc);
-	}
-
-	if (result == 0 && lck->lls_cancel_race) {
-		lck->lls_cancel_race = 0;
-		result = -ESTALE;
-	}
-	cl_lock_closure_fini(closure);
-	return result;
-}
-
-
-static void lov_lock_cancel(const struct lu_env *env,
-			   const struct cl_lock_slice *slice)
-{
-	struct lov_lock	*lck     = cl2lov_lock(slice);
-	struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock);
-	int i;
-	int result;
-
-	for (result = 0, i = 0; i < lck->lls_nr; ++i) {
-		int rc;
-		struct lovsub_lock     *sub;
-		struct cl_lock	 *sublock;
-		struct lov_lock_sub    *lls;
-		struct lov_sublock_env *subenv;
-
-		/* top-lock state cannot change concurrently, because single
-		 * thread (one that released the last hold) carries unlocking
-		 * to the completion. */
-		lls = &lck->lls_sub[i];
-		sub = lls->sub_lock;
-		if (sub == NULL)
-			continue;
-
-		sublock = sub->lss_cl.cls_lock;
-		rc = lov_sublock_lock(env, lck, lls, closure, &subenv);
-		if (rc == 0) {
-			if (!(lls->sub_flags & LSF_HELD)) {
-				lov_sublock_unlock(env, sub, closure, subenv);
-				continue;
-			}
-
-			switch (sublock->cll_state) {
-			case CLS_HELD:
-				rc = cl_unuse_try(subenv->lse_env, sublock);
-				lov_sublock_release(env, lck, i, 0, 0);
-				break;
-			default:
-				lov_sublock_release(env, lck, i, 1, 0);
-				break;
-			}
-			lov_sublock_unlock(env, sub, closure, subenv);
-		}
-
-		if (rc == CLO_REPEAT) {
-			--i;
-			continue;
-		}
-
-		result = lov_subresult(result, rc);
-	}
-
-	if (result)
-		CL_LOCK_DEBUG(D_ERROR, env, slice->cls_lock,
-			      "lov_lock_cancel fails with %d.\n", result);
-
-	cl_lock_closure_fini(closure);
-}
-
-static int lov_lock_wait(const struct lu_env *env,
-			 const struct cl_lock_slice *slice)
-{
-	struct lov_lock	*lck     = cl2lov_lock(slice);
-	struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock);
-	enum cl_lock_state      minstate;
-	int		     reenqueued;
-	int		     result;
-	int		     i;
-
-again:
-	for (result = 0, minstate = CLS_FREEING, i = 0, reenqueued = 0;
-	     i < lck->lls_nr; ++i) {
-		int rc;
-		struct lovsub_lock     *sub;
-		struct cl_lock	 *sublock;
-		struct lov_lock_sub    *lls;
-		struct lov_sublock_env *subenv;
-
-		lls = &lck->lls_sub[i];
-		sub = lls->sub_lock;
-		LASSERT(sub != NULL);
-		sublock = sub->lss_cl.cls_lock;
-		rc = lov_sublock_lock(env, lck, lls, closure, &subenv);
-		if (rc == 0) {
-			LASSERT(sublock->cll_state >= CLS_ENQUEUED);
-			if (sublock->cll_state < CLS_HELD)
-				rc = cl_wait_try(env, sublock);
-
-			minstate = min(minstate, sublock->cll_state);
-			lov_sublock_unlock(env, sub, closure, subenv);
-		}
-		if (rc == CLO_REENQUEUED) {
-			reenqueued++;
-			rc = 0;
-		}
-		result = lov_subresult(result, rc);
-		if (result != 0)
-			break;
-	}
-	/* Each sublock only can be reenqueued once, so will not loop for
-	 * ever. */
-	if (result == 0 && reenqueued != 0)
-		goto again;
-	cl_lock_closure_fini(closure);
-	return result ?: minstate >= CLS_HELD ? 0 : CLO_WAIT;
-}
-
-static int lov_lock_use(const struct lu_env *env,
-			const struct cl_lock_slice *slice)
-{
-	struct lov_lock	*lck     = cl2lov_lock(slice);
-	struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock);
-	int		     result;
-	int		     i;
-
-	LASSERT(slice->cls_lock->cll_state == CLS_INTRANSIT);
-
-	for (result = 0, i = 0; i < lck->lls_nr; ++i) {
-		int rc;
-		struct lovsub_lock     *sub;
-		struct cl_lock	 *sublock;
-		struct lov_lock_sub    *lls;
-		struct lov_sublock_env *subenv;
-
-		LASSERT(slice->cls_lock->cll_state == CLS_INTRANSIT);
-
-		lls = &lck->lls_sub[i];
-		sub = lls->sub_lock;
-		if (sub == NULL) {
-			/*
-			 * Sub-lock might have been canceled, while top-lock was
-			 * cached.
-			 */
-			result = -ESTALE;
-			break;
-		}
-
-		sublock = sub->lss_cl.cls_lock;
-		rc = lov_sublock_lock(env, lck, lls, closure, &subenv);
-		if (rc == 0) {
-			LASSERT(sublock->cll_state != CLS_FREEING);
-			lov_sublock_hold(env, lck, i);
-			if (sublock->cll_state == CLS_CACHED) {
-				rc = cl_use_try(subenv->lse_env, sublock, 0);
-				if (rc != 0)
-					rc = lov_sublock_release(env, lck,
-								 i, 1, rc);
-			} else if (sublock->cll_state == CLS_NEW) {
-				/* Sub-lock might have been canceled, while
-				 * top-lock was cached. */
-				result = -ESTALE;
-				lov_sublock_release(env, lck, i, 1, result);
-			}
-			lov_sublock_unlock(env, sub, closure, subenv);
-		}
-		result = lov_subresult(result, rc);
-		if (result != 0)
-			break;
-	}
-
-	if (lck->lls_cancel_race) {
-		/*
-		 * If there is unlocking happened at the same time, then
-		 * sublock_lock state should be FREEING, and lov_sublock_lock
-		 * should return CLO_REPEAT. In this case, it should return
-		 * ESTALE, and up layer should reset the lock state to be NEW.
-		 */
-		lck->lls_cancel_race = 0;
-		LASSERT(result != 0);
-		result = -ESTALE;
-	}
-	cl_lock_closure_fini(closure);
-	return result;
-}
-
-#if 0
-static int lock_lock_multi_match()
-{
-	struct cl_lock	  *lock    = slice->cls_lock;
-	struct cl_lock_descr    *subneed = &lov_env_info(env)->lti_ldescr;
-	struct lov_object       *loo     = cl2lov(lov->lls_cl.cls_obj);
-	struct lov_layout_raid0 *r0      = lov_r0(loo);
-	struct lov_lock_sub     *sub;
-	struct cl_object	*subobj;
-	u64  fstart;
-	u64  fend;
-	u64  start;
-	u64  end;
-	int i;
-
-	fstart = cl_offset(need->cld_obj, need->cld_start);
-	fend   = cl_offset(need->cld_obj, need->cld_end + 1) - 1;
-	subneed->cld_mode = need->cld_mode;
-	cl_lock_mutex_get(env, lock);
-	for (i = 0; i < lov->lls_nr; ++i) {
-		sub = &lov->lls_sub[i];
-		if (sub->sub_lock == NULL)
-			continue;
-		subobj = sub->sub_descr.cld_obj;
-		if (!lov_stripe_intersects(loo->lo_lsm, sub->sub_stripe,
-					   fstart, fend, &start, &end))
-			continue;
-		subneed->cld_start = cl_index(subobj, start);
-		subneed->cld_end   = cl_index(subobj, end);
-		subneed->cld_obj   = subobj;
-		if (!cl_lock_ext_match(&sub->sub_got, subneed)) {
-			result = 0;
-			break;
-		}
-	}
-	cl_lock_mutex_put(env, lock);
-}
-#endif
-
-/**
- * Check if the extent region \a descr is covered by \a child against the
- * specific \a stripe.
- */
-static int lov_lock_stripe_is_matching(const struct lu_env *env,
-				       struct lov_object *lov, int stripe,
-				       const struct cl_lock_descr *child,
-				       const struct cl_lock_descr *descr)
-{
-	struct lov_stripe_md *lsm = lov->lo_lsm;
-	u64 start;
-	u64 end;
-	int result;
-
-	if (lov_r0(lov)->lo_nr == 1)
-		return cl_lock_ext_match(child, descr);
-
-	/*
-	 * For a multi-stripes object:
-	 * - make sure the descr only covers child's stripe, and
-	 * - check if extent is matching.
-	 */
-	start = cl_offset(&lov->lo_cl, descr->cld_start);
-	end   = cl_offset(&lov->lo_cl, descr->cld_end + 1) - 1;
-	result = 0;
-	/* glimpse should work on the object with LOV EA hole. */
-	if (end - start <= lsm->lsm_stripe_size) {
-		int idx;
-
-		idx = lov_stripe_number(lsm, start);
-		if (idx == stripe ||
-		    unlikely(lov_r0(lov)->lo_sub[idx] == NULL)) {
-			idx = lov_stripe_number(lsm, end);
-			if (idx == stripe ||
-			    unlikely(lov_r0(lov)->lo_sub[idx] == NULL))
-				result = 1;
-		}
-	}
-
-	if (result != 0) {
-		struct cl_lock_descr *subd = &lov_env_info(env)->lti_ldescr;
-		u64 sub_start;
-		u64 sub_end;
-
-		subd->cld_obj  = NULL;   /* don't need sub object at all */
-		subd->cld_mode = descr->cld_mode;
-		subd->cld_gid  = descr->cld_gid;
-		result = lov_stripe_intersects(lsm, stripe, start, end,
-					       &sub_start, &sub_end);
-		LASSERT(result);
-		subd->cld_start = cl_index(child->cld_obj, sub_start);
-		subd->cld_end   = cl_index(child->cld_obj, sub_end);
-		result = cl_lock_ext_match(child, subd);
-	}
-	return result;
-}
-
-/**
- * An implementation of cl_lock_operations::clo_fits_into() method.
- *
- * Checks whether a lock (given by \a slice) is suitable for \a
- * io. Multi-stripe locks can be used only for "quick" io, like truncate, or
- * O_APPEND write.
- *
- * \see ccc_lock_fits_into().
- */
-static int lov_lock_fits_into(const struct lu_env *env,
-			      const struct cl_lock_slice *slice,
-			      const struct cl_lock_descr *need,
-			      const struct cl_io *io)
-{
-	struct lov_lock   *lov = cl2lov_lock(slice);
-	struct lov_object *obj = cl2lov(slice->cls_obj);
-	int result;
-
-	LASSERT(cl_object_same(need->cld_obj, slice->cls_obj));
-	LASSERT(lov->lls_nr > 0);
-
-	/* for top lock, it's necessary to match enq flags otherwise it will
-	 * run into problem if a sublock is missing and reenqueue. */
-	if (need->cld_enq_flags != lov->lls_orig.cld_enq_flags)
-		return 0;
-
-	if (need->cld_mode == CLM_GROUP)
-		/*
-		 * always allow to match group lock.
-		 */
-		result = cl_lock_ext_match(&lov->lls_orig, need);
-	else if (lov->lls_nr == 1) {
-		struct cl_lock_descr *got = &lov->lls_sub[0].sub_got;
-		result = lov_lock_stripe_is_matching(env,
-						     cl2lov(slice->cls_obj),
-						     lov->lls_sub[0].sub_stripe,
-						     got, need);
-	} else if (io->ci_type != CIT_SETATTR && io->ci_type != CIT_MISC &&
-		   !cl_io_is_append(io) && need->cld_mode != CLM_PHANTOM)
-		/*
-		 * Multi-stripe locks are only suitable for `quick' IO and for
-		 * glimpse.
-		 */
-		result = 0;
-	else
-		/*
-		 * Most general case: multi-stripe existing lock, and
-		 * (potentially) multi-stripe @need lock. Check that @need is
-		 * covered by @lov's sub-locks.
-		 *
-		 * For now, ignore lock expansions made by the server, and
-		 * match against original lock extent.
-		 */
-		result = cl_lock_ext_match(&lov->lls_orig, need);
-	CDEBUG(D_DLMTRACE, DDESCR"/"DDESCR" %d %d/%d: %d\n",
-	       PDESCR(&lov->lls_orig), PDESCR(&lov->lls_sub[0].sub_got),
-	       lov->lls_sub[0].sub_stripe, lov->lls_nr, lov_r0(obj)->lo_nr,
-	       result);
-	return result;
-}
-
-void lov_lock_unlink(const struct lu_env *env,
-		     struct lov_lock_link *link, struct lovsub_lock *sub)
-{
-	struct lov_lock *lck    = link->lll_super;
-	struct cl_lock  *parent = lck->lls_cl.cls_lock;
-
-	LASSERT(cl_lock_is_mutexed(parent));
-	LASSERT(cl_lock_is_mutexed(sub->lss_cl.cls_lock));
-
-	list_del_init(&link->lll_list);
-	LASSERT(lck->lls_sub[link->lll_idx].sub_lock == sub);
-	/* yank this sub-lock from parent's array */
-	lck->lls_sub[link->lll_idx].sub_lock = NULL;
-	LASSERT(lck->lls_nr_filled > 0);
-	lck->lls_nr_filled--;
-	lu_ref_del(&parent->cll_reference, "lov-child", sub->lss_cl.cls_lock);
-	cl_lock_put(env, parent);
-	OBD_SLAB_FREE_PTR(link, lov_lock_link_kmem);
-}
-
-struct lov_lock_link *lov_lock_link_find(const struct lu_env *env,
-					 struct lov_lock *lck,
-					 struct lovsub_lock *sub)
-{
-	struct lov_lock_link *scan;
-
-	LASSERT(cl_lock_is_mutexed(sub->lss_cl.cls_lock));
-
-	list_for_each_entry(scan, &sub->lss_parents, lll_list) {
-		if (scan->lll_super == lck)
-			return scan;
-	}
-	return NULL;
-}
-
-/**
- * An implementation of cl_lock_operations::clo_delete() method. This is
- * invoked for "top-to-bottom" delete, when lock destruction starts from the
- * top-lock, e.g., as a result of inode destruction.
- *
- * Unlinks top-lock from all its sub-locks. Sub-locks are not deleted there:
- * this is done separately elsewhere:
- *
- *     - for inode destruction, lov_object_delete() calls cl_object_kill() for
- *       each sub-object, purging its locks;
- *
- *     - in other cases (e.g., a fatal error with a top-lock) sub-locks are
- *       left in the cache.
- */
-static void lov_lock_delete(const struct lu_env *env,
-			    const struct cl_lock_slice *slice)
-{
-	struct lov_lock	*lck     = cl2lov_lock(slice);
-	struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock);
-	struct lov_lock_link   *link;
-	int		     rc;
-	int		     i;
-
-	LASSERT(slice->cls_lock->cll_state == CLS_FREEING);
-
-	for (i = 0; i < lck->lls_nr; ++i) {
-		struct lov_lock_sub *lls = &lck->lls_sub[i];
-		struct lovsub_lock  *lsl = lls->sub_lock;
-
-		if (lsl == NULL) /* already removed */
-			continue;
-
-		rc = lov_sublock_lock(env, lck, lls, closure, NULL);
-		if (rc == CLO_REPEAT) {
-			--i;
-			continue;
-		}
-
-		LASSERT(rc == 0);
-		LASSERT(lsl->lss_cl.cls_lock->cll_state < CLS_FREEING);
-
-		if (lls->sub_flags & LSF_HELD)
-			lov_sublock_release(env, lck, i, 1, 0);
-
-		link = lov_lock_link_find(env, lck, lsl);
-		LASSERT(link != NULL);
-		lov_lock_unlink(env, link, lsl);
-		LASSERT(lck->lls_sub[i].sub_lock == NULL);
-
-		lov_sublock_unlock(env, lsl, closure, NULL);
-	}
-
-	cl_lock_closure_fini(closure);
-}
-
-static int lov_lock_print(const struct lu_env *env, void *cookie,
-			  lu_printer_t p, const struct cl_lock_slice *slice)
-{
-	struct lov_lock *lck = cl2lov_lock(slice);
-	int	      i;
-
-	(*p)(env, cookie, "%d\n", lck->lls_nr);
-	for (i = 0; i < lck->lls_nr; ++i) {
-		struct lov_lock_sub *sub;
-
-		sub = &lck->lls_sub[i];
-		(*p)(env, cookie, "    %d %x: ", i, sub->sub_flags);
-		if (sub->sub_lock != NULL)
-			cl_lock_print(env, cookie, p,
-				      sub->sub_lock->lss_cl.cls_lock);
-		else
-			(*p)(env, cookie, "---\n");
-	}
-	return 0;
-}
-
-static const struct cl_lock_operations lov_lock_ops = {
-	.clo_fini      = lov_lock_fini,
-	.clo_enqueue   = lov_lock_enqueue,
-	.clo_wait      = lov_lock_wait,
-	.clo_use       = lov_lock_use,
-	.clo_unuse     = lov_lock_unuse,
-	.clo_cancel    = lov_lock_cancel,
-	.clo_fits_into = lov_lock_fits_into,
-	.clo_delete    = lov_lock_delete,
-	.clo_print     = lov_lock_print
-};
-
-int lov_lock_init_raid0(const struct lu_env *env, struct cl_object *obj,
-			struct cl_lock *lock, const struct cl_io *io)
-{
-	struct lov_lock *lck;
-	int result;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lck, lov_lock_kmem, GFP_NOFS);
-	if (lck != NULL) {
-		cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_lock_ops);
-		result = lov_lock_sub_init(env, lck, io);
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-static void lov_empty_lock_fini(const struct lu_env *env,
-				struct cl_lock_slice *slice)
-{
-	struct lov_lock *lck = cl2lov_lock(slice);
-	OBD_SLAB_FREE_PTR(lck, lov_lock_kmem);
-}
-
-static int lov_empty_lock_print(const struct lu_env *env, void *cookie,
-			lu_printer_t p, const struct cl_lock_slice *slice)
-{
-	(*p)(env, cookie, "empty\n");
-	return 0;
-}
-
-/* XXX: more methods will be added later. */
-static const struct cl_lock_operations lov_empty_lock_ops = {
-	.clo_fini  = lov_empty_lock_fini,
-	.clo_print = lov_empty_lock_print
-};
-
-int lov_lock_init_empty(const struct lu_env *env, struct cl_object *obj,
-		struct cl_lock *lock, const struct cl_io *io)
-{
-	struct lov_lock *lck;
-	int result = -ENOMEM;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lck, lov_lock_kmem, GFP_NOFS);
-	if (lck != NULL) {
-		cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_empty_lock_ops);
-		lck->lls_orig = lock->cll_descr;
-		result = 0;
-	}
-	return result;
-}
-
-static struct cl_lock_closure *lov_closure_get(const struct lu_env *env,
-					       struct cl_lock *parent)
-{
-	struct cl_lock_closure *closure;
-
-	closure = &lov_env_info(env)->lti_closure;
-	LASSERT(list_empty(&closure->clc_list));
-	cl_lock_closure_init(env, closure, parent, 1);
-	return closure;
-}
-
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lov_merge.c b/drivers/staging/lustre/lustre/lov/lov_merge.c
deleted file mode 100644
index dd1cf3d2d039..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_merge.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd_class.h"
-#include "lov_internal.h"
-
-/** Merge the lock value block(&lvb) attributes and KMS from each of the
- * stripes in a file into a single lvb. It is expected that the caller
- * initializes the current atime, mtime, ctime to avoid regressing a more
- * uptodate time on the local client.
- */
-int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
-		      struct ost_lvb *lvb, __u64 *kms_place)
-{
-	__u64 size = 0;
-	__u64 kms = 0;
-	__u64 blocks = 0;
-	s64 current_mtime = lvb->lvb_mtime;
-	s64 current_atime = lvb->lvb_atime;
-	s64 current_ctime = lvb->lvb_ctime;
-	int i;
-	int rc = 0;
-
-	assert_spin_locked(&lsm->lsm_lock);
-	LASSERT(lsm->lsm_lock_owner == current_pid());
-
-	CDEBUG(D_INODE, "MDT ID "DOSTID" initial value: s=%llu m=%llu a=%llu c=%llu b=%llu\n",
-	       POSTID(&lsm->lsm_oi), lvb->lvb_size, lvb->lvb_mtime,
-	       lvb->lvb_atime, lvb->lvb_ctime, lvb->lvb_blocks);
-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-		u64 lov_size, tmpsize;
-
-		if (OST_LVB_IS_ERR(loi->loi_lvb.lvb_blocks)) {
-			rc = OST_LVB_GET_ERR(loi->loi_lvb.lvb_blocks);
-			continue;
-		}
-
-		tmpsize = loi->loi_kms;
-		lov_size = lov_stripe_size(lsm, tmpsize, i);
-		if (lov_size > kms)
-			kms = lov_size;
-
-		if (loi->loi_lvb.lvb_size > tmpsize)
-			tmpsize = loi->loi_lvb.lvb_size;
-
-		lov_size = lov_stripe_size(lsm, tmpsize, i);
-		if (lov_size > size)
-			size = lov_size;
-		/* merge blocks, mtime, atime */
-		blocks += loi->loi_lvb.lvb_blocks;
-		if (loi->loi_lvb.lvb_mtime > current_mtime)
-			current_mtime = loi->loi_lvb.lvb_mtime;
-		if (loi->loi_lvb.lvb_atime > current_atime)
-			current_atime = loi->loi_lvb.lvb_atime;
-		if (loi->loi_lvb.lvb_ctime > current_ctime)
-			current_ctime = loi->loi_lvb.lvb_ctime;
-
-		CDEBUG(D_INODE, "MDT ID "DOSTID" on OST[%u]: s=%llu m=%llu a=%llu c=%llu b=%llu\n",
-		       POSTID(&lsm->lsm_oi), loi->loi_ost_idx,
-		       loi->loi_lvb.lvb_size, loi->loi_lvb.lvb_mtime,
-		       loi->loi_lvb.lvb_atime, loi->loi_lvb.lvb_ctime,
-		       loi->loi_lvb.lvb_blocks);
-	}
-
-	*kms_place = kms;
-	lvb->lvb_size = size;
-	lvb->lvb_blocks = blocks;
-	lvb->lvb_mtime = current_mtime;
-	lvb->lvb_atime = current_atime;
-	lvb->lvb_ctime = current_ctime;
-	return rc;
-}
-
-/* Must be called under the lov_stripe_lock() */
-int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
-		   u64 size, int shrink)
-{
-	struct lov_oinfo *loi;
-	int stripe = 0;
-	__u64 kms;
-
-	assert_spin_locked(&lsm->lsm_lock);
-	LASSERT(lsm->lsm_lock_owner == current_pid());
-
-	if (shrink) {
-		for (; stripe < lsm->lsm_stripe_count; stripe++) {
-			struct lov_oinfo *loi = lsm->lsm_oinfo[stripe];
-
-			kms = lov_size_to_stripe(lsm, size, stripe);
-			CDEBUG(D_INODE,
-			       "stripe %d KMS %sing %llu->%llu\n",
-			       stripe, kms > loi->loi_kms ? "increase":"shrink",
-			       loi->loi_kms, kms);
-			loi_kms_set(loi, loi->loi_lvb.lvb_size = kms);
-		}
-		return 0;
-	}
-
-	if (size > 0)
-		stripe = lov_stripe_number(lsm, size - 1);
-	kms = lov_size_to_stripe(lsm, size, stripe);
-	loi = lsm->lsm_oinfo[stripe];
-
-	CDEBUG(D_INODE, "stripe %d KMS %sincreasing %llu->%llu\n",
-	       stripe, kms > loi->loi_kms ? "" : "not ", loi->loi_kms, kms);
-	if (kms > loi->loi_kms)
-		loi_kms_set(loi, kms);
-
-	return 0;
-}
-
-void lov_merge_attrs(struct obdo *tgt, struct obdo *src, u64 valid,
-		     struct lov_stripe_md *lsm, int stripeno, int *set)
-{
-	valid &= src->o_valid;
-
-	if (*set) {
-		if (valid & OBD_MD_FLSIZE) {
-			/* this handles sparse files properly */
-			u64 lov_size;
-
-			lov_size = lov_stripe_size(lsm, src->o_size, stripeno);
-			if (lov_size > tgt->o_size)
-				tgt->o_size = lov_size;
-		}
-		if (valid & OBD_MD_FLBLOCKS)
-			tgt->o_blocks += src->o_blocks;
-		if (valid & OBD_MD_FLBLKSZ)
-			tgt->o_blksize += src->o_blksize;
-		if (valid & OBD_MD_FLCTIME && tgt->o_ctime < src->o_ctime)
-			tgt->o_ctime = src->o_ctime;
-		if (valid & OBD_MD_FLMTIME && tgt->o_mtime < src->o_mtime)
-			tgt->o_mtime = src->o_mtime;
-		if (valid & OBD_MD_FLDATAVERSION)
-			tgt->o_data_version += src->o_data_version;
-	} else {
-		memcpy(tgt, src, sizeof(*tgt));
-		tgt->o_oi = lsm->lsm_oi;
-		if (valid & OBD_MD_FLSIZE)
-			tgt->o_size = lov_stripe_size(lsm, src->o_size,
-						      stripeno);
-	}
-
-	/* data_version needs to be valid on all stripes to be correct! */
-	if (!(valid & OBD_MD_FLDATAVERSION))
-		tgt->o_valid &= ~OBD_MD_FLDATAVERSION;
-
-	*set += 1;
-}
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
deleted file mode 100644
index c5c67d982ef2..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ /dev/null
@@ -1,2377 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lov/lov_obd.c
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- * Author: Peter Braam <braam@clusterfs.com>
- * Author: Mike Shaver <shaver@clusterfs.com>
- * Author: Nathan Rutman <nathan@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd_support.h"
-#include "../include/lustre_lib.h"
-#include "../include/lustre_net.h"
-#include "../include/lustre/lustre_idl.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_mds.h"
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre_param.h"
-#include "../include/cl_object.h"
-#include "../include/lclient.h"		/* for cl_client_lru */
-#include "../include/lustre/ll_fiemap.h"
-#include "../include/lustre_fid.h"
-
-#include "lov_internal.h"
-
-/* Keep a refcount of lov->tgt usage to prevent racing with addition/deletion.
-   Any function that expects lov_tgts to remain stationary must take a ref. */
-static void lov_getref(struct obd_device *obd)
-{
-	struct lov_obd *lov = &obd->u.lov;
-
-	/* nobody gets through here until lov_putref is done */
-	mutex_lock(&lov->lov_lock);
-	atomic_inc(&lov->lov_refcount);
-	mutex_unlock(&lov->lov_lock);
-	return;
-}
-
-static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt);
-
-static void lov_putref(struct obd_device *obd)
-{
-	struct lov_obd *lov = &obd->u.lov;
-
-	mutex_lock(&lov->lov_lock);
-	/* ok to dec to 0 more than once -- ltd_exp's will be null */
-	if (atomic_dec_and_test(&lov->lov_refcount) && lov->lov_death_row) {
-		LIST_HEAD(kill);
-		int i;
-		struct lov_tgt_desc *tgt, *n;
-		CDEBUG(D_CONFIG, "destroying %d lov targets\n",
-		       lov->lov_death_row);
-		for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-			tgt = lov->lov_tgts[i];
-
-			if (!tgt || !tgt->ltd_reap)
-				continue;
-			list_add(&tgt->ltd_kill, &kill);
-			/* XXX - right now there is a dependency on ld_tgt_count
-			 * being the maximum tgt index for computing the
-			 * mds_max_easize. So we can't shrink it. */
-			lov_ost_pool_remove(&lov->lov_packed, i);
-			lov->lov_tgts[i] = NULL;
-			lov->lov_death_row--;
-		}
-		mutex_unlock(&lov->lov_lock);
-
-		list_for_each_entry_safe(tgt, n, &kill, ltd_kill) {
-			list_del(&tgt->ltd_kill);
-			/* Disconnect */
-			__lov_del_obd(obd, tgt);
-		}
-
-		if (lov->lov_tgts_kobj)
-			kobject_put(lov->lov_tgts_kobj);
-
-	} else {
-		mutex_unlock(&lov->lov_lock);
-	}
-}
-
-static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
-			      enum obd_notify_event ev);
-static int lov_notify(struct obd_device *obd, struct obd_device *watched,
-		      enum obd_notify_event ev, void *data);
-
-
-#define MAX_STRING_SIZE 128
-int lov_connect_obd(struct obd_device *obd, __u32 index, int activate,
-		    struct obd_connect_data *data)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	struct obd_uuid *tgt_uuid;
-	struct obd_device *tgt_obd;
-	static struct obd_uuid lov_osc_uuid = { "LOV_OSC_UUID" };
-	struct obd_import *imp;
-	int rc;
-
-	if (!lov->lov_tgts[index])
-		return -EINVAL;
-
-	tgt_uuid = &lov->lov_tgts[index]->ltd_uuid;
-	tgt_obd = lov->lov_tgts[index]->ltd_obd;
-
-	if (!tgt_obd->obd_set_up) {
-		CERROR("Target %s not set up\n", obd_uuid2str(tgt_uuid));
-		return -EINVAL;
-	}
-
-	/* override the sp_me from lov */
-	tgt_obd->u.cli.cl_sp_me = lov->lov_sp_me;
-
-	if (data && (data->ocd_connect_flags & OBD_CONNECT_INDEX))
-		data->ocd_index = index;
-
-	/*
-	 * Divine LOV knows that OBDs under it are OSCs.
-	 */
-	imp = tgt_obd->u.cli.cl_import;
-
-	if (activate) {
-		tgt_obd->obd_no_recov = 0;
-		/* FIXME this is probably supposed to be
-		   ptlrpc_set_import_active.  Horrible naming. */
-		ptlrpc_activate_import(imp);
-	}
-
-	rc = obd_register_observer(tgt_obd, obd);
-	if (rc) {
-		CERROR("Target %s register_observer error %d\n",
-		       obd_uuid2str(tgt_uuid), rc);
-		return rc;
-	}
-
-
-	if (imp->imp_invalid) {
-		CDEBUG(D_CONFIG, "not connecting OSC %s; administratively disabled\n",
-		       obd_uuid2str(tgt_uuid));
-		return 0;
-	}
-
-	rc = obd_connect(NULL, &lov->lov_tgts[index]->ltd_exp, tgt_obd,
-			 &lov_osc_uuid, data, NULL);
-	if (rc || !lov->lov_tgts[index]->ltd_exp) {
-		CERROR("Target %s connect error %d\n",
-		       obd_uuid2str(tgt_uuid), rc);
-		return -ENODEV;
-	}
-
-	lov->lov_tgts[index]->ltd_reap = 0;
-
-	CDEBUG(D_CONFIG, "Connected tgt idx %d %s (%s) %sactive\n", index,
-	       obd_uuid2str(tgt_uuid), tgt_obd->obd_name, activate ? "":"in");
-
-	if (lov->lov_tgts_kobj)
-		/* Even if we failed, that's ok */
-		rc = sysfs_create_link(lov->lov_tgts_kobj, &tgt_obd->obd_kobj,
-				       tgt_obd->obd_name);
-
-	return 0;
-}
-
-static int lov_connect(const struct lu_env *env,
-		       struct obd_export **exp, struct obd_device *obd,
-		       struct obd_uuid *cluuid, struct obd_connect_data *data,
-		       void *localdata)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	struct lov_tgt_desc *tgt;
-	struct lustre_handle conn;
-	int i, rc;
-
-	CDEBUG(D_CONFIG, "connect #%d\n", lov->lov_connects);
-
-	rc = class_connect(&conn, obd, cluuid);
-	if (rc)
-		return rc;
-
-	*exp = class_conn2export(&conn);
-
-	/* Why should there ever be more than 1 connect? */
-	lov->lov_connects++;
-	LASSERT(lov->lov_connects == 1);
-
-	memset(&lov->lov_ocd, 0, sizeof(lov->lov_ocd));
-	if (data)
-		lov->lov_ocd = *data;
-
-	obd_getref(obd);
-
-	lov->lov_tgts_kobj = kobject_create_and_add("target_obds",
-						    &obd->obd_kobj);
-
-	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-		tgt = lov->lov_tgts[i];
-		if (!tgt || obd_uuid_empty(&tgt->ltd_uuid))
-			continue;
-		/* Flags will be lowest common denominator */
-		rc = lov_connect_obd(obd, i, tgt->ltd_activate, &lov->lov_ocd);
-		if (rc) {
-			CERROR("%s: lov connect tgt %d failed: %d\n",
-			       obd->obd_name, i, rc);
-			continue;
-		}
-		/* connect to administrative disabled ost */
-		if (!lov->lov_tgts[i]->ltd_exp)
-			continue;
-
-		rc = lov_notify(obd, lov->lov_tgts[i]->ltd_exp->exp_obd,
-				OBD_NOTIFY_CONNECT, (void *)&i);
-		if (rc) {
-			CERROR("%s error sending notify %d\n",
-			       obd->obd_name, rc);
-		}
-	}
-	obd_putref(obd);
-
-	return 0;
-}
-
-static int lov_disconnect_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	struct obd_device *osc_obd;
-	int rc;
-
-	osc_obd = class_exp2obd(tgt->ltd_exp);
-	CDEBUG(D_CONFIG, "%s: disconnecting target %s\n",
-		obd->obd_name, osc_obd ? osc_obd->obd_name : "NULL");
-
-	if (tgt->ltd_active) {
-		tgt->ltd_active = 0;
-		lov->desc.ld_active_tgt_count--;
-		tgt->ltd_exp->exp_obd->obd_inactive = 1;
-	}
-
-	if (osc_obd) {
-		if (lov->lov_tgts_kobj)
-			sysfs_remove_link(lov->lov_tgts_kobj,
-					  osc_obd->obd_name);
-
-		/* Pass it on to our clients.
-		 * XXX This should be an argument to disconnect,
-		 * XXX not a back-door flag on the OBD.  Ah well.
-		 */
-		osc_obd->obd_force = obd->obd_force;
-		osc_obd->obd_fail = obd->obd_fail;
-		osc_obd->obd_no_recov = obd->obd_no_recov;
-	}
-
-	obd_register_observer(osc_obd, NULL);
-
-	rc = obd_disconnect(tgt->ltd_exp);
-	if (rc) {
-		CERROR("Target %s disconnect error %d\n",
-		       tgt->ltd_uuid.uuid, rc);
-		rc = 0;
-	}
-
-	tgt->ltd_exp = NULL;
-	return 0;
-}
-
-static int lov_disconnect(struct obd_export *exp)
-{
-	struct obd_device *obd = class_exp2obd(exp);
-	struct lov_obd *lov = &obd->u.lov;
-	int i, rc;
-
-	if (!lov->lov_tgts)
-		goto out;
-
-	/* Only disconnect the underlying layers on the final disconnect. */
-	lov->lov_connects--;
-	if (lov->lov_connects != 0) {
-		/* why should there be more than 1 connect? */
-		CERROR("disconnect #%d\n", lov->lov_connects);
-		goto out;
-	}
-
-	/* Let's hold another reference so lov_del_obd doesn't spin through
-	   putref every time */
-	obd_getref(obd);
-
-	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-		if (lov->lov_tgts[i] && lov->lov_tgts[i]->ltd_exp) {
-			/* Disconnection is the last we know about an obd */
-			lov_del_target(obd, i, NULL, lov->lov_tgts[i]->ltd_gen);
-		}
-	}
-
-	obd_putref(obd);
-
-out:
-	rc = class_disconnect(exp); /* bz 9811 */
-	return rc;
-}
-
-/* Error codes:
- *
- *  -EINVAL  : UUID can't be found in the LOV's target list
- *  -ENOTCONN: The UUID is found, but the target connection is bad (!)
- *  -EBADF   : The UUID is found, but the OBD is the wrong type (!)
- *  any >= 0 : is log target index
- */
-static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid,
-			      enum obd_notify_event ev)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	struct lov_tgt_desc *tgt;
-	int index, activate, active;
-
-	CDEBUG(D_INFO, "Searching in lov %p for uuid %s event(%d)\n",
-	       lov, uuid->uuid, ev);
-
-	obd_getref(obd);
-	for (index = 0; index < lov->desc.ld_tgt_count; index++) {
-		tgt = lov->lov_tgts[index];
-		if (!tgt)
-			continue;
-		/*
-		 * LU-642, initially inactive OSC could miss the obd_connect,
-		 * we make up for it here.
-		 */
-		if (ev == OBD_NOTIFY_ACTIVATE && tgt->ltd_exp == NULL &&
-		    obd_uuid_equals(uuid, &tgt->ltd_uuid)) {
-			struct obd_uuid lov_osc_uuid = {"LOV_OSC_UUID"};
-
-			obd_connect(NULL, &tgt->ltd_exp, tgt->ltd_obd,
-				    &lov_osc_uuid, &lov->lov_ocd, NULL);
-		}
-		if (!tgt->ltd_exp)
-			continue;
-
-		CDEBUG(D_INFO, "lov idx %d is %s conn %#llx\n",
-		       index, obd_uuid2str(&tgt->ltd_uuid),
-		       tgt->ltd_exp->exp_handle.h_cookie);
-		if (obd_uuid_equals(uuid, &tgt->ltd_uuid))
-			break;
-	}
-
-	if (index == lov->desc.ld_tgt_count) {
-		index = -EINVAL;
-		goto out;
-	}
-
-	if (ev == OBD_NOTIFY_DEACTIVATE || ev == OBD_NOTIFY_ACTIVATE) {
-		activate = (ev == OBD_NOTIFY_ACTIVATE) ? 1 : 0;
-
-		if (lov->lov_tgts[index]->ltd_activate == activate) {
-			CDEBUG(D_INFO, "OSC %s already %sactivate!\n",
-			       uuid->uuid, activate ? "" : "de");
-		} else {
-			lov->lov_tgts[index]->ltd_activate = activate;
-			CDEBUG(D_CONFIG, "%sactivate OSC %s\n",
-			       activate ? "" : "de", obd_uuid2str(uuid));
-		}
-
-	} else if (ev == OBD_NOTIFY_INACTIVE || ev == OBD_NOTIFY_ACTIVE) {
-		active = (ev == OBD_NOTIFY_ACTIVE) ? 1 : 0;
-
-		if (lov->lov_tgts[index]->ltd_active == active) {
-			CDEBUG(D_INFO, "OSC %s already %sactive!\n",
-			       uuid->uuid, active ? "" : "in");
-			goto out;
-		} else {
-			CDEBUG(D_CONFIG, "Marking OSC %s %sactive\n",
-			       obd_uuid2str(uuid), active ? "" : "in");
-		}
-
-		lov->lov_tgts[index]->ltd_active = active;
-		if (active) {
-			lov->desc.ld_active_tgt_count++;
-			lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 0;
-		} else {
-			lov->desc.ld_active_tgt_count--;
-			lov->lov_tgts[index]->ltd_exp->exp_obd->obd_inactive = 1;
-		}
-	} else {
-		CERROR("Unknown event(%d) for uuid %s", ev, uuid->uuid);
-	}
-
- out:
-	obd_putref(obd);
-	return index;
-}
-
-static int lov_notify(struct obd_device *obd, struct obd_device *watched,
-		      enum obd_notify_event ev, void *data)
-{
-	int rc = 0;
-	struct lov_obd *lov = &obd->u.lov;
-
-	down_read(&lov->lov_notify_lock);
-	if (!lov->lov_connects) {
-		up_read(&lov->lov_notify_lock);
-		return rc;
-	}
-
-	if (ev == OBD_NOTIFY_ACTIVE || ev == OBD_NOTIFY_INACTIVE ||
-	    ev == OBD_NOTIFY_ACTIVATE || ev == OBD_NOTIFY_DEACTIVATE) {
-		struct obd_uuid *uuid;
-
-		LASSERT(watched);
-
-		if (strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) {
-			up_read(&lov->lov_notify_lock);
-			CERROR("unexpected notification of %s %s!\n",
-			       watched->obd_type->typ_name,
-			       watched->obd_name);
-			return -EINVAL;
-		}
-		uuid = &watched->u.cli.cl_target_uuid;
-
-		/* Set OSC as active before notifying the observer, so the
-		 * observer can use the OSC normally.
-		 */
-		rc = lov_set_osc_active(obd, uuid, ev);
-		if (rc < 0) {
-			up_read(&lov->lov_notify_lock);
-			CERROR("event(%d) of %s failed: %d\n", ev,
-			       obd_uuid2str(uuid), rc);
-			return rc;
-		}
-		/* active event should be pass lov target index as data */
-		data = &rc;
-	}
-
-	/* Pass the notification up the chain. */
-	if (watched) {
-		rc = obd_notify_observer(obd, watched, ev, data);
-	} else {
-		/* NULL watched means all osc's in the lov (only for syncs) */
-		/* sync event should be send lov idx as data */
-		struct lov_obd *lov = &obd->u.lov;
-		int i, is_sync;
-
-		data = &i;
-		is_sync = (ev == OBD_NOTIFY_SYNC) ||
-			  (ev == OBD_NOTIFY_SYNC_NONBLOCK);
-
-		obd_getref(obd);
-		for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-			if (!lov->lov_tgts[i])
-				continue;
-
-			/* don't send sync event if target not
-			 * connected/activated */
-			if (is_sync &&  !lov->lov_tgts[i]->ltd_active)
-				continue;
-
-			rc = obd_notify_observer(obd, lov->lov_tgts[i]->ltd_obd,
-						 ev, data);
-			if (rc) {
-				CERROR("%s: notify %s of %s failed %d\n",
-				       obd->obd_name,
-				       obd->obd_observer->obd_name,
-				       lov->lov_tgts[i]->ltd_obd->obd_name,
-				       rc);
-			}
-		}
-		obd_putref(obd);
-	}
-
-	up_read(&lov->lov_notify_lock);
-	return rc;
-}
-
-static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
-			  __u32 index, int gen, int active)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	struct lov_tgt_desc *tgt;
-	struct obd_device *tgt_obd;
-	int rc;
-
-	CDEBUG(D_CONFIG, "uuid:%s idx:%d gen:%d active:%d\n",
-	       uuidp->uuid, index, gen, active);
-
-	if (gen <= 0) {
-		CERROR("request to add OBD %s with invalid generation: %d\n",
-		       uuidp->uuid, gen);
-		return -EINVAL;
-	}
-
-	tgt_obd = class_find_client_obd(uuidp, LUSTRE_OSC_NAME,
-					&obd->obd_uuid);
-	if (tgt_obd == NULL)
-		return -EINVAL;
-
-	mutex_lock(&lov->lov_lock);
-
-	if ((index < lov->lov_tgt_size) && (lov->lov_tgts[index] != NULL)) {
-		tgt = lov->lov_tgts[index];
-		CERROR("UUID %s already assigned at LOV target index %d\n",
-		       obd_uuid2str(&tgt->ltd_uuid), index);
-		mutex_unlock(&lov->lov_lock);
-		return -EEXIST;
-	}
-
-	if (index >= lov->lov_tgt_size) {
-		/* We need to reallocate the lov target array. */
-		struct lov_tgt_desc **newtgts, **old = NULL;
-		__u32 newsize, oldsize = 0;
-
-		newsize = max_t(__u32, lov->lov_tgt_size, 2);
-		while (newsize < index + 1)
-			newsize <<= 1;
-		newtgts = kcalloc(newsize, sizeof(*newtgts), GFP_NOFS);
-		if (newtgts == NULL) {
-			mutex_unlock(&lov->lov_lock);
-			return -ENOMEM;
-		}
-
-		if (lov->lov_tgt_size) {
-			memcpy(newtgts, lov->lov_tgts, sizeof(*newtgts) *
-			       lov->lov_tgt_size);
-			old = lov->lov_tgts;
-			oldsize = lov->lov_tgt_size;
-		}
-
-		lov->lov_tgts = newtgts;
-		lov->lov_tgt_size = newsize;
-		smp_rmb();
-		kfree(old);
-
-		CDEBUG(D_CONFIG, "tgts: %p size: %d\n",
-		       lov->lov_tgts, lov->lov_tgt_size);
-	}
-
-	tgt = kzalloc(sizeof(*tgt), GFP_NOFS);
-	if (!tgt) {
-		mutex_unlock(&lov->lov_lock);
-		return -ENOMEM;
-	}
-
-	rc = lov_ost_pool_add(&lov->lov_packed, index, lov->lov_tgt_size);
-	if (rc) {
-		mutex_unlock(&lov->lov_lock);
-		kfree(tgt);
-		return rc;
-	}
-
-	tgt->ltd_uuid = *uuidp;
-	tgt->ltd_obd = tgt_obd;
-	/* XXX - add a sanity check on the generation number. */
-	tgt->ltd_gen = gen;
-	tgt->ltd_index = index;
-	tgt->ltd_activate = active;
-	lov->lov_tgts[index] = tgt;
-	if (index >= lov->desc.ld_tgt_count)
-		lov->desc.ld_tgt_count = index + 1;
-
-	mutex_unlock(&lov->lov_lock);
-
-	CDEBUG(D_CONFIG, "idx=%d ltd_gen=%d ld_tgt_count=%d\n",
-		index, tgt->ltd_gen, lov->desc.ld_tgt_count);
-
-	rc = obd_notify(obd, tgt_obd, OBD_NOTIFY_CREATE, &index);
-
-	if (lov->lov_connects == 0) {
-		/* lov_connect hasn't been called yet. We'll do the
-		   lov_connect_obd on this target when that fn first runs,
-		   because we don't know the connect flags yet. */
-		return 0;
-	}
-
-	obd_getref(obd);
-
-	rc = lov_connect_obd(obd, index, active, &lov->lov_ocd);
-	if (rc)
-		goto out;
-
-	/* connect to administrative disabled ost */
-	if (!tgt->ltd_exp) {
-		rc = 0;
-		goto out;
-	}
-
-	if (lov->lov_cache != NULL) {
-		rc = obd_set_info_async(NULL, tgt->ltd_exp,
-				sizeof(KEY_CACHE_SET), KEY_CACHE_SET,
-				sizeof(struct cl_client_cache), lov->lov_cache,
-				NULL);
-		if (rc < 0)
-			goto out;
-	}
-
-	rc = lov_notify(obd, tgt->ltd_exp->exp_obd,
-			active ? OBD_NOTIFY_CONNECT : OBD_NOTIFY_INACTIVE,
-			(void *)&index);
-
-out:
-	if (rc) {
-		CERROR("add failed (%d), deleting %s\n", rc,
-		       obd_uuid2str(&tgt->ltd_uuid));
-		lov_del_target(obd, index, NULL, 0);
-	}
-	obd_putref(obd);
-	return rc;
-}
-
-/* Schedule a target for deletion */
-int lov_del_target(struct obd_device *obd, __u32 index,
-		   struct obd_uuid *uuidp, int gen)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	int count = lov->desc.ld_tgt_count;
-	int rc = 0;
-
-	if (index >= count) {
-		CERROR("LOV target index %d >= number of LOV OBDs %d.\n",
-		       index, count);
-		return -EINVAL;
-	}
-
-	/* to make sure there's no ongoing lov_notify() now */
-	down_write(&lov->lov_notify_lock);
-	obd_getref(obd);
-
-	if (!lov->lov_tgts[index]) {
-		CERROR("LOV target at index %d is not setup.\n", index);
-		rc = -EINVAL;
-		goto out;
-	}
-
-	if (uuidp && !obd_uuid_equals(uuidp, &lov->lov_tgts[index]->ltd_uuid)) {
-		CERROR("LOV target UUID %s at index %d doesn't match %s.\n",
-		       lov_uuid2str(lov, index), index,
-		       obd_uuid2str(uuidp));
-		rc = -EINVAL;
-		goto out;
-	}
-
-	CDEBUG(D_CONFIG, "uuid: %s idx: %d gen: %d exp: %p active: %d\n",
-	       lov_uuid2str(lov, index), index,
-	       lov->lov_tgts[index]->ltd_gen, lov->lov_tgts[index]->ltd_exp,
-	       lov->lov_tgts[index]->ltd_active);
-
-	lov->lov_tgts[index]->ltd_reap = 1;
-	lov->lov_death_row++;
-	/* we really delete it from obd_putref */
-out:
-	obd_putref(obd);
-	up_write(&lov->lov_notify_lock);
-
-	return rc;
-}
-
-static void __lov_del_obd(struct obd_device *obd, struct lov_tgt_desc *tgt)
-{
-	struct obd_device *osc_obd;
-
-	LASSERT(tgt);
-	LASSERT(tgt->ltd_reap);
-
-	osc_obd = class_exp2obd(tgt->ltd_exp);
-
-	CDEBUG(D_CONFIG, "Removing tgt %s : %s\n",
-	       tgt->ltd_uuid.uuid,
-	       osc_obd ? osc_obd->obd_name : "<no obd>");
-
-	if (tgt->ltd_exp)
-		lov_disconnect_obd(obd, tgt);
-
-	kfree(tgt);
-
-	/* Manual cleanup - no cleanup logs to clean up the osc's.  We must
-	   do it ourselves. And we can't do it from lov_cleanup,
-	   because we just lost our only reference to it. */
-	if (osc_obd)
-		class_manual_cleanup(osc_obd);
-}
-
-void lov_fix_desc_stripe_size(__u64 *val)
-{
-	if (*val < LOV_MIN_STRIPE_SIZE) {
-		if (*val != 0)
-			LCONSOLE_INFO("Increasing default stripe size to minimum %u\n",
-				      LOV_DESC_STRIPE_SIZE_DEFAULT);
-		*val = LOV_DESC_STRIPE_SIZE_DEFAULT;
-	} else if (*val & (LOV_MIN_STRIPE_SIZE - 1)) {
-		*val &= ~(LOV_MIN_STRIPE_SIZE - 1);
-		LCONSOLE_WARN("Changing default stripe size to %llu (a multiple of %u)\n",
-			      *val, LOV_MIN_STRIPE_SIZE);
-	}
-}
-
-void lov_fix_desc_stripe_count(__u32 *val)
-{
-	if (*val == 0)
-		*val = 1;
-}
-
-void lov_fix_desc_pattern(__u32 *val)
-{
-	/* from lov_setstripe */
-	if ((*val != 0) && (*val != LOV_PATTERN_RAID0)) {
-		LCONSOLE_WARN("Unknown stripe pattern: %#x\n", *val);
-		*val = 0;
-	}
-}
-
-void lov_fix_desc_qos_maxage(__u32 *val)
-{
-	if (*val == 0)
-		*val = LOV_DESC_QOS_MAXAGE_DEFAULT;
-}
-
-void lov_fix_desc(struct lov_desc *desc)
-{
-	lov_fix_desc_stripe_size(&desc->ld_default_stripe_size);
-	lov_fix_desc_stripe_count(&desc->ld_default_stripe_count);
-	lov_fix_desc_pattern(&desc->ld_pattern);
-	lov_fix_desc_qos_maxage(&desc->ld_qos_maxage);
-}
-
-int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	struct lprocfs_static_vars lvars = { NULL };
-	struct lov_desc *desc;
-	struct lov_obd *lov = &obd->u.lov;
-	int rc;
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
-		CERROR("LOV setup requires a descriptor\n");
-		return -EINVAL;
-	}
-
-	desc = (struct lov_desc *)lustre_cfg_buf(lcfg, 1);
-
-	if (sizeof(*desc) > LUSTRE_CFG_BUFLEN(lcfg, 1)) {
-		CERROR("descriptor size wrong: %d > %d\n",
-		       (int)sizeof(*desc), LUSTRE_CFG_BUFLEN(lcfg, 1));
-		return -EINVAL;
-	}
-
-	if (desc->ld_magic != LOV_DESC_MAGIC) {
-		if (desc->ld_magic == __swab32(LOV_DESC_MAGIC)) {
-			    CDEBUG(D_OTHER, "%s: Swabbing lov desc %p\n",
-				   obd->obd_name, desc);
-			    lustre_swab_lov_desc(desc);
-		} else {
-			CERROR("%s: Bad lov desc magic: %#x\n",
-			       obd->obd_name, desc->ld_magic);
-			return -EINVAL;
-		}
-	}
-
-	lov_fix_desc(desc);
-
-	desc->ld_active_tgt_count = 0;
-	lov->desc = *desc;
-	lov->lov_tgt_size = 0;
-
-	mutex_init(&lov->lov_lock);
-	atomic_set(&lov->lov_refcount, 0);
-	lov->lov_sp_me = LUSTRE_SP_CLI;
-
-	init_rwsem(&lov->lov_notify_lock);
-
-	lov->lov_pools_hash_body = cfs_hash_create("POOLS", HASH_POOLS_CUR_BITS,
-						   HASH_POOLS_MAX_BITS,
-						   HASH_POOLS_BKT_BITS, 0,
-						   CFS_HASH_MIN_THETA,
-						   CFS_HASH_MAX_THETA,
-						   &pool_hash_operations,
-						   CFS_HASH_DEFAULT);
-	INIT_LIST_HEAD(&lov->lov_pool_list);
-	lov->lov_pool_count = 0;
-	rc = lov_ost_pool_init(&lov->lov_packed, 0);
-	if (rc)
-		goto out;
-
-	lprocfs_lov_init_vars(&lvars);
-	lprocfs_obd_setup(obd, lvars.obd_vars, lvars.sysfs_vars);
-
-	rc = ldebugfs_seq_create(obd->obd_debugfs_entry, "target_obd",
-				 0444, &lov_proc_target_fops, obd);
-	if (rc)
-		CWARN("Error adding the target_obd file\n");
-
-	lov->lov_pool_debugfs_entry = ldebugfs_register("pools",
-						     obd->obd_debugfs_entry,
-						     NULL, NULL);
-	return 0;
-
-out:
-	return rc;
-}
-
-static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
-{
-	struct lov_obd *lov = &obd->u.lov;
-
-	switch (stage) {
-	case OBD_CLEANUP_EARLY: {
-		int i;
-		for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-			if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_active)
-				continue;
-			obd_precleanup(class_exp2obd(lov->lov_tgts[i]->ltd_exp),
-				       OBD_CLEANUP_EARLY);
-		}
-		break;
-	}
-	default:
-		break;
-	}
-
-	return 0;
-}
-
-static int lov_cleanup(struct obd_device *obd)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	struct list_head *pos, *tmp;
-	struct pool_desc *pool;
-
-	list_for_each_safe(pos, tmp, &lov->lov_pool_list) {
-		pool = list_entry(pos, struct pool_desc, pool_list);
-		/* free pool structs */
-		CDEBUG(D_INFO, "delete pool %p\n", pool);
-		/* In the function below, .hs_keycmp resolves to
-		 * pool_hashkey_keycmp() */
-		/* coverity[overrun-buffer-val] */
-		lov_pool_del(obd, pool->pool_name);
-	}
-	cfs_hash_putref(lov->lov_pools_hash_body);
-	lov_ost_pool_free(&lov->lov_packed);
-
-	lprocfs_obd_cleanup(obd);
-	if (lov->lov_tgts) {
-		int i;
-		obd_getref(obd);
-		for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-			if (!lov->lov_tgts[i])
-				continue;
-
-			/* Inactive targets may never have connected */
-			if (lov->lov_tgts[i]->ltd_active ||
-			    atomic_read(&lov->lov_refcount))
-			    /* We should never get here - these
-			       should have been removed in the
-			     disconnect. */
-				CERROR("lov tgt %d not cleaned! deathrow=%d, lovrc=%d\n",
-				       i, lov->lov_death_row,
-				       atomic_read(&lov->lov_refcount));
-			lov_del_target(obd, i, NULL, 0);
-		}
-		obd_putref(obd);
-		kfree(lov->lov_tgts);
-		lov->lov_tgt_size = 0;
-	}
-	return 0;
-}
-
-int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg,
-			    __u32 *indexp, int *genp)
-{
-	struct obd_uuid obd_uuid;
-	int cmd;
-	int rc = 0;
-
-	switch (cmd = lcfg->lcfg_command) {
-	case LCFG_LOV_ADD_OBD:
-	case LCFG_LOV_ADD_INA:
-	case LCFG_LOV_DEL_OBD: {
-		__u32 index;
-		int gen;
-		/* lov_modify_tgts add  0:lov_mdsA  1:ost1_UUID  2:0  3:1 */
-		if (LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(obd_uuid.uuid)) {
-			rc = -EINVAL;
-			goto out;
-		}
-
-		obd_str2uuid(&obd_uuid,  lustre_cfg_buf(lcfg, 1));
-
-		if (sscanf(lustre_cfg_buf(lcfg, 2), "%d", indexp) != 1) {
-			rc = -EINVAL;
-			goto out;
-		}
-		if (sscanf(lustre_cfg_buf(lcfg, 3), "%d", genp) != 1) {
-			rc = -EINVAL;
-			goto out;
-		}
-		index = *indexp;
-		gen = *genp;
-		if (cmd == LCFG_LOV_ADD_OBD)
-			rc = lov_add_target(obd, &obd_uuid, index, gen, 1);
-		else if (cmd == LCFG_LOV_ADD_INA)
-			rc = lov_add_target(obd, &obd_uuid, index, gen, 0);
-		else
-			rc = lov_del_target(obd, index, &obd_uuid, gen);
-		goto out;
-	}
-	case LCFG_PARAM: {
-		struct lprocfs_static_vars lvars = { NULL };
-		struct lov_desc *desc = &(obd->u.lov.desc);
-
-		if (!desc) {
-			rc = -EINVAL;
-			goto out;
-		}
-
-		lprocfs_lov_init_vars(&lvars);
-
-		rc = class_process_proc_param(PARAM_LOV, lvars.obd_vars,
-					      lcfg, obd);
-		if (rc > 0)
-			rc = 0;
-		goto out;
-	}
-	case LCFG_POOL_NEW:
-	case LCFG_POOL_ADD:
-	case LCFG_POOL_DEL:
-	case LCFG_POOL_REM:
-		goto out;
-
-	default: {
-		CERROR("Unknown command: %d\n", lcfg->lcfg_command);
-		rc = -EINVAL;
-		goto out;
-
-	}
-	}
-out:
-	return rc;
-}
-
-static int lov_recreate(struct obd_export *exp, struct obdo *src_oa,
-			struct lov_stripe_md **ea, struct obd_trans_info *oti)
-{
-	struct lov_stripe_md *obj_mdp, *lsm;
-	struct lov_obd *lov = &exp->exp_obd->u.lov;
-	unsigned ost_idx;
-	int rc, i;
-
-	LASSERT(src_oa->o_valid & OBD_MD_FLFLAGS &&
-		src_oa->o_flags & OBD_FL_RECREATE_OBJS);
-
-	obj_mdp = kzalloc(sizeof(*obj_mdp), GFP_NOFS);
-	if (!obj_mdp)
-		return -ENOMEM;
-
-	ost_idx = src_oa->o_nlink;
-	lsm = *ea;
-	if (lsm == NULL) {
-		rc = -EINVAL;
-		goto out;
-	}
-	if (ost_idx >= lov->desc.ld_tgt_count ||
-	    !lov->lov_tgts[ost_idx]) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-
-		if (lov_oinfo_is_dummy(loi))
-			continue;
-
-		if (loi->loi_ost_idx == ost_idx) {
-			if (ostid_id(&loi->loi_oi) != ostid_id(&src_oa->o_oi)) {
-				rc = -EINVAL;
-				goto out;
-			}
-			break;
-		}
-	}
-	if (i == lsm->lsm_stripe_count) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	rc = obd_create(NULL, lov->lov_tgts[ost_idx]->ltd_exp,
-			src_oa, &obj_mdp, oti);
-out:
-	kfree(obj_mdp);
-	return rc;
-}
-
-/* the LOV expects oa->o_id to be set to the LOV object id */
-static int lov_create(const struct lu_env *env, struct obd_export *exp,
-		      struct obdo *src_oa, struct lov_stripe_md **ea,
-		      struct obd_trans_info *oti)
-{
-	struct lov_obd *lov;
-	int rc = 0;
-
-	LASSERT(ea != NULL);
-	if (exp == NULL)
-		return -EINVAL;
-
-	if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
-	    src_oa->o_flags == OBD_FL_DELORPHAN) {
-		/* should be used with LOV anymore */
-		LBUG();
-	}
-
-	lov = &exp->exp_obd->u.lov;
-	if (!lov->desc.ld_active_tgt_count)
-		return -EIO;
-
-	obd_getref(exp->exp_obd);
-	/* Recreate a specific object id at the given OST index */
-	if ((src_oa->o_valid & OBD_MD_FLFLAGS) &&
-	    (src_oa->o_flags & OBD_FL_RECREATE_OBJS)) {
-		 rc = lov_recreate(exp, src_oa, ea, oti);
-	}
-
-	obd_putref(exp->exp_obd);
-	return rc;
-}
-
-#define ASSERT_LSM_MAGIC(lsmp)						  \
-do {									    \
-	LASSERT((lsmp) != NULL);						\
-	LASSERTF(((lsmp)->lsm_magic == LOV_MAGIC_V1 ||			  \
-		 (lsmp)->lsm_magic == LOV_MAGIC_V3),			    \
-		 "%p->lsm_magic=%x\n", (lsmp), (lsmp)->lsm_magic);	      \
-} while (0)
-
-static int lov_destroy(const struct lu_env *env, struct obd_export *exp,
-		       struct obdo *oa, struct lov_stripe_md *lsm,
-		       struct obd_trans_info *oti, struct obd_export *md_exp,
-		       void *capa)
-{
-	struct lov_request_set *set;
-	struct obd_info oinfo;
-	struct lov_request *req;
-	struct list_head *pos;
-	struct lov_obd *lov;
-	int rc = 0, err = 0;
-
-	ASSERT_LSM_MAGIC(lsm);
-
-	if (!exp || !exp->exp_obd)
-		return -ENODEV;
-
-	if (oa->o_valid & OBD_MD_FLCOOKIE) {
-		LASSERT(oti);
-		LASSERT(oti->oti_logcookies);
-	}
-
-	lov = &exp->exp_obd->u.lov;
-	obd_getref(exp->exp_obd);
-	rc = lov_prep_destroy_set(exp, &oinfo, oa, lsm, oti, &set);
-	if (rc)
-		goto out;
-
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
-		if (oa->o_valid & OBD_MD_FLCOOKIE)
-			oti->oti_logcookies = set->set_cookies + req->rq_stripe;
-
-		err = obd_destroy(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
-				  req->rq_oi.oi_oa, NULL, oti, NULL, capa);
-		err = lov_update_common_set(set, req, err);
-		if (err) {
-			CERROR("%s: destroying objid "DOSTID" subobj "
-			       DOSTID" on OST idx %d: rc = %d\n",
-			       exp->exp_obd->obd_name, POSTID(&oa->o_oi),
-			       POSTID(&req->rq_oi.oi_oa->o_oi),
-			       req->rq_idx, err);
-			if (!rc)
-				rc = err;
-		}
-	}
-
-	if (rc == 0) {
-		LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
-		rc = lsm_op_find(lsm->lsm_magic)->lsm_destroy(lsm, oa, md_exp);
-	}
-	err = lov_fini_destroy_set(set);
-out:
-	obd_putref(exp->exp_obd);
-	return rc ? rc : err;
-}
-
-static int lov_getattr_interpret(struct ptlrpc_request_set *rqset,
-				 void *data, int rc)
-{
-	struct lov_request_set *lovset = (struct lov_request_set *)data;
-	int err;
-
-	/* don't do attribute merge if this async op failed */
-	if (rc)
-		atomic_set(&lovset->set_completes, 0);
-	err = lov_fini_getattr_set(lovset);
-	return rc ? rc : err;
-}
-
-static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
-			      struct ptlrpc_request_set *rqset)
-{
-	struct lov_request_set *lovset;
-	struct lov_obd *lov;
-	struct list_head *pos;
-	struct lov_request *req;
-	int rc = 0, err;
-
-	LASSERT(oinfo);
-	ASSERT_LSM_MAGIC(oinfo->oi_md);
-
-	if (!exp || !exp->exp_obd)
-		return -ENODEV;
-
-	lov = &exp->exp_obd->u.lov;
-
-	rc = lov_prep_getattr_set(exp, oinfo, &lovset);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes\n",
-	       POSTID(&oinfo->oi_md->lsm_oi), oinfo->oi_md->lsm_stripe_count,
-	       oinfo->oi_md->lsm_stripe_size);
-
-	list_for_each(pos, &lovset->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
-		CDEBUG(D_INFO, "objid " DOSTID "[%d] has subobj " DOSTID " at idx%u\n",
-		       POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
-		       POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
-		rc = obd_getattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
-				       &req->rq_oi, rqset);
-		if (rc) {
-			CERROR("%s: getattr objid "DOSTID" subobj"
-			       DOSTID" on OST idx %d: rc = %d\n",
-			       exp->exp_obd->obd_name,
-			       POSTID(&oinfo->oi_oa->o_oi),
-			       POSTID(&req->rq_oi.oi_oa->o_oi),
-			       req->rq_idx, rc);
-			goto out;
-		}
-	}
-
-	if (!list_empty(&rqset->set_requests)) {
-		LASSERT(rc == 0);
-		LASSERT(rqset->set_interpret == NULL);
-		rqset->set_interpret = lov_getattr_interpret;
-		rqset->set_arg = (void *)lovset;
-		return rc;
-	}
-out:
-	if (rc)
-		atomic_set(&lovset->set_completes, 0);
-	err = lov_fini_getattr_set(lovset);
-	return rc ? rc : err;
-}
-
-static int lov_setattr_interpret(struct ptlrpc_request_set *rqset,
-				 void *data, int rc)
-{
-	struct lov_request_set *lovset = (struct lov_request_set *)data;
-	int err;
-
-	if (rc)
-		atomic_set(&lovset->set_completes, 0);
-	err = lov_fini_setattr_set(lovset);
-	return rc ? rc : err;
-}
-
-/* If @oti is given, the request goes from MDS and responses from OSTs are not
-   needed. Otherwise, a client is waiting for responses. */
-static int lov_setattr_async(struct obd_export *exp, struct obd_info *oinfo,
-			     struct obd_trans_info *oti,
-			     struct ptlrpc_request_set *rqset)
-{
-	struct lov_request_set *set;
-	struct lov_request *req;
-	struct list_head *pos;
-	struct lov_obd *lov;
-	int rc = 0;
-
-	LASSERT(oinfo);
-	ASSERT_LSM_MAGIC(oinfo->oi_md);
-	if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE) {
-		LASSERT(oti);
-		LASSERT(oti->oti_logcookies);
-	}
-
-	if (!exp || !exp->exp_obd)
-		return -ENODEV;
-
-	lov = &exp->exp_obd->u.lov;
-	rc = lov_prep_setattr_set(exp, oinfo, oti, &set);
-	if (rc)
-		return rc;
-
-	CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes\n",
-	       POSTID(&oinfo->oi_md->lsm_oi),
-	       oinfo->oi_md->lsm_stripe_count,
-	       oinfo->oi_md->lsm_stripe_size);
-
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
-		if (oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
-			oti->oti_logcookies = set->set_cookies + req->rq_stripe;
-
-		CDEBUG(D_INFO, "objid " DOSTID "[%d] has subobj " DOSTID " at idx%u\n",
-		       POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
-		       POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
-
-		rc = obd_setattr_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
-				       &req->rq_oi, oti, rqset);
-		if (rc) {
-			CERROR("error: setattr objid "DOSTID" subobj"
-			       DOSTID" on OST idx %d: rc = %d\n",
-			       POSTID(&set->set_oi->oi_oa->o_oi),
-			       POSTID(&req->rq_oi.oi_oa->o_oi),
-			       req->rq_idx, rc);
-			break;
-		}
-	}
-
-	/* If we are not waiting for responses on async requests, return. */
-	if (rc || !rqset || list_empty(&rqset->set_requests)) {
-		int err;
-		if (rc)
-			atomic_set(&set->set_completes, 0);
-		err = lov_fini_setattr_set(set);
-		return rc ? rc : err;
-	}
-
-	LASSERT(rqset->set_interpret == NULL);
-	rqset->set_interpret = lov_setattr_interpret;
-	rqset->set_arg = (void *)set;
-
-	return 0;
-}
-
-/* find any ldlm lock of the inode in lov
- * return 0    not find
- *	1    find one
- *      < 0    error */
-static int lov_find_cbdata(struct obd_export *exp,
-			   struct lov_stripe_md *lsm, ldlm_iterator_t it,
-			   void *data)
-{
-	struct lov_obd *lov;
-	int rc = 0, i;
-
-	ASSERT_LSM_MAGIC(lsm);
-
-	if (!exp || !exp->exp_obd)
-		return -ENODEV;
-
-	lov = &exp->exp_obd->u.lov;
-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		struct lov_stripe_md submd;
-		struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-
-		if (lov_oinfo_is_dummy(loi))
-			continue;
-
-		if (!lov->lov_tgts[loi->loi_ost_idx]) {
-			CDEBUG(D_HA, "lov idx %d NULL\n", loi->loi_ost_idx);
-			continue;
-		}
-
-		submd.lsm_oi = loi->loi_oi;
-		submd.lsm_stripe_count = 0;
-		rc = obd_find_cbdata(lov->lov_tgts[loi->loi_ost_idx]->ltd_exp,
-				     &submd, it, data);
-		if (rc != 0)
-			return rc;
-	}
-	return rc;
-}
-
-int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc)
-{
-	struct lov_request_set *lovset = (struct lov_request_set *)data;
-	int err;
-
-	if (rc)
-		atomic_set(&lovset->set_completes, 0);
-
-	err = lov_fini_statfs_set(lovset);
-	return rc ? rc : err;
-}
-
-static int lov_statfs_async(struct obd_export *exp, struct obd_info *oinfo,
-			    __u64 max_age, struct ptlrpc_request_set *rqset)
-{
-	struct obd_device      *obd = class_exp2obd(exp);
-	struct lov_request_set *set;
-	struct lov_request *req;
-	struct list_head *pos;
-	struct lov_obd *lov;
-	int rc = 0;
-
-	LASSERT(oinfo != NULL);
-	LASSERT(oinfo->oi_osfs != NULL);
-
-	lov = &obd->u.lov;
-	rc = lov_prep_statfs_set(obd, oinfo, &set);
-	if (rc)
-		return rc;
-
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-		rc = obd_statfs_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
-				      &req->rq_oi, max_age, rqset);
-		if (rc)
-			break;
-	}
-
-	if (rc || list_empty(&rqset->set_requests)) {
-		int err;
-		if (rc)
-			atomic_set(&set->set_completes, 0);
-		err = lov_fini_statfs_set(set);
-		return rc ? rc : err;
-	}
-
-	LASSERT(rqset->set_interpret == NULL);
-	rqset->set_interpret = lov_statfs_interpret;
-	rqset->set_arg = (void *)set;
-	return 0;
-}
-
-static int lov_statfs(const struct lu_env *env, struct obd_export *exp,
-		      struct obd_statfs *osfs, __u64 max_age, __u32 flags)
-{
-	struct ptlrpc_request_set *set = NULL;
-	struct obd_info oinfo = { { { 0 } } };
-	int rc = 0;
-
-	/* for obdclass we forbid using obd_statfs_rqset, but prefer using async
-	 * statfs requests */
-	set = ptlrpc_prep_set();
-	if (set == NULL)
-		return -ENOMEM;
-
-	oinfo.oi_osfs = osfs;
-	oinfo.oi_flags = flags;
-	rc = lov_statfs_async(exp, &oinfo, max_age, set);
-	if (rc == 0)
-		rc = ptlrpc_set_wait(set);
-	ptlrpc_set_destroy(set);
-
-	return rc;
-}
-
-static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
-			 void *karg, void *uarg)
-{
-	struct obd_device *obddev = class_exp2obd(exp);
-	struct lov_obd *lov = &obddev->u.lov;
-	int i = 0, rc = 0, count = lov->desc.ld_tgt_count;
-	struct obd_uuid *uuidp;
-
-	switch (cmd) {
-	case IOC_OBD_STATFS: {
-		struct obd_ioctl_data *data = karg;
-		struct obd_device *osc_obd;
-		struct obd_statfs stat_buf = {0};
-		__u32 index;
-		__u32 flags;
-
-		memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
-		if (index >= count)
-			return -ENODEV;
-
-		if (!lov->lov_tgts[index])
-			/* Try again with the next index */
-			return -EAGAIN;
-		if (!lov->lov_tgts[index]->ltd_active)
-			return -ENODATA;
-
-		osc_obd = class_exp2obd(lov->lov_tgts[index]->ltd_exp);
-		if (!osc_obd)
-			return -EINVAL;
-
-		/* copy UUID */
-		if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(osc_obd),
-				     min((int) data->ioc_plen2,
-					 (int) sizeof(struct obd_uuid))))
-			return -EFAULT;
-
-		flags = uarg ? *(__u32 *)uarg : 0;
-		/* got statfs data */
-		rc = obd_statfs(NULL, lov->lov_tgts[index]->ltd_exp, &stat_buf,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				flags);
-		if (rc)
-			return rc;
-		if (copy_to_user(data->ioc_pbuf1, &stat_buf,
-				     min((int) data->ioc_plen1,
-					 (int) sizeof(stat_buf))))
-			return -EFAULT;
-		break;
-	}
-	case OBD_IOC_LOV_GET_CONFIG: {
-		struct obd_ioctl_data *data;
-		struct lov_desc *desc;
-		char *buf = NULL;
-		__u32 *genp;
-
-		len = 0;
-		if (obd_ioctl_getdata(&buf, &len, uarg))
-			return -EINVAL;
-
-		data = (struct obd_ioctl_data *)buf;
-
-		if (sizeof(*desc) > data->ioc_inllen1) {
-			obd_ioctl_freedata(buf, len);
-			return -EINVAL;
-		}
-
-		if (sizeof(uuidp->uuid) * count > data->ioc_inllen2) {
-			obd_ioctl_freedata(buf, len);
-			return -EINVAL;
-		}
-
-		if (sizeof(__u32) * count > data->ioc_inllen3) {
-			obd_ioctl_freedata(buf, len);
-			return -EINVAL;
-		}
-
-		desc = (struct lov_desc *)data->ioc_inlbuf1;
-		memcpy(desc, &(lov->desc), sizeof(*desc));
-
-		uuidp = (struct obd_uuid *)data->ioc_inlbuf2;
-		genp = (__u32 *)data->ioc_inlbuf3;
-		/* the uuid will be empty for deleted OSTs */
-		for (i = 0; i < count; i++, uuidp++, genp++) {
-			if (!lov->lov_tgts[i])
-				continue;
-			*uuidp = lov->lov_tgts[i]->ltd_uuid;
-			*genp = lov->lov_tgts[i]->ltd_gen;
-		}
-
-		if (copy_to_user(uarg, buf, len))
-			rc = -EFAULT;
-		obd_ioctl_freedata(buf, len);
-		break;
-	}
-	case LL_IOC_LOV_GETSTRIPE:
-		rc = lov_getstripe(exp, karg, uarg);
-		break;
-	case OBD_IOC_QUOTACTL: {
-		struct if_quotactl *qctl = karg;
-		struct lov_tgt_desc *tgt = NULL;
-		struct obd_quotactl *oqctl;
-
-		if (qctl->qc_valid == QC_OSTIDX) {
-			if (qctl->qc_idx < 0 || count <= qctl->qc_idx)
-				return -EINVAL;
-
-			tgt = lov->lov_tgts[qctl->qc_idx];
-			if (!tgt || !tgt->ltd_exp)
-				return -EINVAL;
-		} else if (qctl->qc_valid == QC_UUID) {
-			for (i = 0; i < count; i++) {
-				tgt = lov->lov_tgts[i];
-				if (!tgt ||
-				    !obd_uuid_equals(&tgt->ltd_uuid,
-						     &qctl->obd_uuid))
-					continue;
-
-				if (tgt->ltd_exp == NULL)
-					return -EINVAL;
-
-				break;
-			}
-		} else {
-			return -EINVAL;
-		}
-
-		if (i >= count)
-			return -EAGAIN;
-
-		LASSERT(tgt && tgt->ltd_exp);
-		oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS);
-		if (!oqctl)
-			return -ENOMEM;
-
-		QCTL_COPY(oqctl, qctl);
-		rc = obd_quotactl(tgt->ltd_exp, oqctl);
-		if (rc == 0) {
-			QCTL_COPY(qctl, oqctl);
-			qctl->qc_valid = QC_OSTIDX;
-			qctl->obd_uuid = tgt->ltd_uuid;
-		}
-		kfree(oqctl);
-		break;
-	}
-	default: {
-		int set = 0;
-
-		if (count == 0)
-			return -ENOTTY;
-
-		for (i = 0; i < count; i++) {
-			int err;
-			struct obd_device *osc_obd;
-
-			/* OST was disconnected */
-			if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_exp)
-				continue;
-
-			/* ll_umount_begin() sets force flag but for lov, not
-			 * osc. Let's pass it through */
-			osc_obd = class_exp2obd(lov->lov_tgts[i]->ltd_exp);
-			osc_obd->obd_force = obddev->obd_force;
-			err = obd_iocontrol(cmd, lov->lov_tgts[i]->ltd_exp,
-					    len, karg, uarg);
-			if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) {
-				return err;
-			} else if (err) {
-				if (lov->lov_tgts[i]->ltd_active) {
-					CDEBUG(err == -ENOTTY ?
-					       D_IOCTL : D_WARNING,
-					       "iocontrol OSC %s on OST idx %d cmd %x: err = %d\n",
-					       lov_uuid2str(lov, i),
-					       i, cmd, err);
-					if (!rc)
-						rc = err;
-				}
-			} else {
-				set = 1;
-			}
-		}
-		if (!set && !rc)
-			rc = -EIO;
-	}
-	}
-
-	return rc;
-}
-
-#define FIEMAP_BUFFER_SIZE 4096
-
-/**
- * Non-zero fe_logical indicates that this is a continuation FIEMAP
- * call. The local end offset and the device are sent in the first
- * fm_extent. This function calculates the stripe number from the index.
- * This function returns a stripe_no on which mapping is to be restarted.
- *
- * This function returns fm_end_offset which is the in-OST offset at which
- * mapping should be restarted. If fm_end_offset=0 is returned then caller
- * will re-calculate proper offset in next stripe.
- * Note that the first extent is passed to lov_get_info via the value field.
- *
- * \param fiemap fiemap request header
- * \param lsm striping information for the file
- * \param fm_start logical start of mapping
- * \param fm_end logical end of mapping
- * \param start_stripe starting stripe will be returned in this
- */
-static u64 fiemap_calc_fm_end_offset(struct ll_user_fiemap *fiemap,
-				     struct lov_stripe_md *lsm, u64 fm_start,
-				     u64 fm_end, int *start_stripe)
-{
-	u64 local_end = fiemap->fm_extents[0].fe_logical;
-	u64 lun_start, lun_end;
-	u64 fm_end_offset;
-	int stripe_no = -1, i;
-
-	if (fiemap->fm_extent_count == 0 ||
-	    fiemap->fm_extents[0].fe_logical == 0)
-		return 0;
-
-	/* Find out stripe_no from ost_index saved in the fe_device */
-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
-
-		if (lov_oinfo_is_dummy(oinfo))
-			continue;
-
-		if (oinfo->loi_ost_idx == fiemap->fm_extents[0].fe_device) {
-			stripe_no = i;
-			break;
-		}
-	}
-	if (stripe_no == -1)
-		return -EINVAL;
-
-	/* If we have finished mapping on previous device, shift logical
-	 * offset to start of next device */
-	if ((lov_stripe_intersects(lsm, stripe_no, fm_start, fm_end,
-				   &lun_start, &lun_end)) != 0 &&
-				   local_end < lun_end) {
-		fm_end_offset = local_end;
-		*start_stripe = stripe_no;
-	} else {
-		/* This is a special value to indicate that caller should
-		 * calculate offset in next stripe. */
-		fm_end_offset = 0;
-		*start_stripe = (stripe_no + 1) % lsm->lsm_stripe_count;
-	}
-
-	return fm_end_offset;
-}
-
-/**
- * We calculate on which OST the mapping will end. If the length of mapping
- * is greater than (stripe_size * stripe_count) then the last_stripe will
- * will be one just before start_stripe. Else we check if the mapping
- * intersects each OST and find last_stripe.
- * This function returns the last_stripe and also sets the stripe_count
- * over which the mapping is spread
- *
- * \param lsm striping information for the file
- * \param fm_start logical start of mapping
- * \param fm_end logical end of mapping
- * \param start_stripe starting stripe of the mapping
- * \param stripe_count the number of stripes across which to map is returned
- *
- * \retval last_stripe return the last stripe of the mapping
- */
-static int fiemap_calc_last_stripe(struct lov_stripe_md *lsm, u64 fm_start,
-				   u64 fm_end, int start_stripe,
-				   int *stripe_count)
-{
-	int last_stripe;
-	u64 obd_start, obd_end;
-	int i, j;
-
-	if (fm_end - fm_start > lsm->lsm_stripe_size * lsm->lsm_stripe_count) {
-		last_stripe = start_stripe < 1 ? lsm->lsm_stripe_count - 1 :
-							      start_stripe - 1;
-		*stripe_count = lsm->lsm_stripe_count;
-	} else {
-		for (j = 0, i = start_stripe; j < lsm->lsm_stripe_count;
-		     i = (i + 1) % lsm->lsm_stripe_count, j++) {
-			if ((lov_stripe_intersects(lsm, i, fm_start, fm_end,
-						   &obd_start, &obd_end)) == 0)
-				break;
-		}
-		*stripe_count = j;
-		last_stripe = (start_stripe + j - 1) %lsm->lsm_stripe_count;
-	}
-
-	return last_stripe;
-}
-
-/**
- * Set fe_device and copy extents from local buffer into main return buffer.
- *
- * \param fiemap fiemap request header
- * \param lcl_fm_ext array of local fiemap extents to be copied
- * \param ost_index OST index to be written into the fm_device field for each
-		    extent
- * \param ext_count number of extents to be copied
- * \param current_extent where to start copying in main extent array
- */
-static void fiemap_prepare_and_copy_exts(struct ll_user_fiemap *fiemap,
-					 struct ll_fiemap_extent *lcl_fm_ext,
-					 int ost_index, unsigned int ext_count,
-					 int current_extent)
-{
-	char *to;
-	int ext;
-
-	for (ext = 0; ext < ext_count; ext++) {
-		lcl_fm_ext[ext].fe_device = ost_index;
-		lcl_fm_ext[ext].fe_flags |= FIEMAP_EXTENT_NET;
-	}
-
-	/* Copy fm_extent's from fm_local to return buffer */
-	to = (char *)fiemap + fiemap_count_to_size(current_extent);
-	memcpy(to, lcl_fm_ext, ext_count * sizeof(struct ll_fiemap_extent));
-}
-
-/**
- * Break down the FIEMAP request and send appropriate calls to individual OSTs.
- * This also handles the restarting of FIEMAP calls in case mapping overflows
- * the available number of extents in single call.
- */
-static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
-		      __u32 *vallen, void *val, struct lov_stripe_md *lsm)
-{
-	struct ll_fiemap_info_key *fm_key = key;
-	struct ll_user_fiemap *fiemap = val;
-	struct ll_user_fiemap *fm_local = NULL;
-	struct ll_fiemap_extent *lcl_fm_ext;
-	int count_local;
-	unsigned int get_num_extents = 0;
-	int ost_index = 0, actual_start_stripe, start_stripe;
-	u64 fm_start, fm_end, fm_length, fm_end_offset;
-	u64 curr_loc;
-	int current_extent = 0, rc = 0, i;
-	int ost_eof = 0; /* EOF for object */
-	int ost_done = 0; /* done with required mapping for this OST? */
-	int last_stripe;
-	int cur_stripe = 0, cur_stripe_wrap = 0, stripe_count;
-	unsigned int buffer_size = FIEMAP_BUFFER_SIZE;
-
-	if (!lsm_has_objects(lsm)) {
-		rc = 0;
-		goto out;
-	}
-
-	if (fiemap_count_to_size(fm_key->fiemap.fm_extent_count) < buffer_size)
-		buffer_size = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);
-
-	fm_local = libcfs_kvzalloc(buffer_size, GFP_NOFS);
-	if (fm_local == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-	lcl_fm_ext = &fm_local->fm_extents[0];
-
-	count_local = fiemap_size_to_count(buffer_size);
-
-	memcpy(fiemap, &fm_key->fiemap, sizeof(*fiemap));
-	fm_start = fiemap->fm_start;
-	fm_length = fiemap->fm_length;
-	/* Calculate start stripe, last stripe and length of mapping */
-	actual_start_stripe = start_stripe = lov_stripe_number(lsm, fm_start);
-	fm_end = (fm_length == ~0ULL ? fm_key->oa.o_size :
-						fm_start + fm_length - 1);
-	/* If fm_length != ~0ULL but fm_start+fm_length-1 exceeds file size */
-	if (fm_end > fm_key->oa.o_size)
-		fm_end = fm_key->oa.o_size;
-
-	last_stripe = fiemap_calc_last_stripe(lsm, fm_start, fm_end,
-					    actual_start_stripe, &stripe_count);
-
-	fm_end_offset = fiemap_calc_fm_end_offset(fiemap, lsm, fm_start,
-						  fm_end, &start_stripe);
-	if (fm_end_offset == -EINVAL) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	if (fiemap_count_to_size(fiemap->fm_extent_count) > *vallen)
-		fiemap->fm_extent_count = fiemap_size_to_count(*vallen);
-	if (fiemap->fm_extent_count == 0) {
-		get_num_extents = 1;
-		count_local = 0;
-	}
-	/* Check each stripe */
-	for (cur_stripe = start_stripe, i = 0; i < stripe_count;
-	     i++, cur_stripe = (cur_stripe + 1) % lsm->lsm_stripe_count) {
-		u64 req_fm_len; /* Stores length of required mapping */
-		u64 len_mapped_single_call;
-		u64 lun_start, lun_end, obd_object_end;
-		unsigned int ext_count;
-
-		cur_stripe_wrap = cur_stripe;
-
-		/* Find out range of mapping on this stripe */
-		if ((lov_stripe_intersects(lsm, cur_stripe, fm_start, fm_end,
-					   &lun_start, &obd_object_end)) == 0)
-			continue;
-
-		if (lov_oinfo_is_dummy(lsm->lsm_oinfo[cur_stripe])) {
-			rc = -EIO;
-			goto out;
-		}
-
-		/* If this is a continuation FIEMAP call and we are on
-		 * starting stripe then lun_start needs to be set to
-		 * fm_end_offset */
-		if (fm_end_offset != 0 && cur_stripe == start_stripe)
-			lun_start = fm_end_offset;
-
-		if (fm_length != ~0ULL) {
-			/* Handle fm_start + fm_length overflow */
-			if (fm_start + fm_length < fm_start)
-				fm_length = ~0ULL - fm_start;
-			lun_end = lov_size_to_stripe(lsm, fm_start + fm_length,
-						     cur_stripe);
-		} else {
-			lun_end = ~0ULL;
-		}
-
-		if (lun_start == lun_end)
-			continue;
-
-		req_fm_len = obd_object_end - lun_start;
-		fm_local->fm_length = 0;
-		len_mapped_single_call = 0;
-
-		/* If the output buffer is very large and the objects have many
-		 * extents we may need to loop on a single OST repeatedly */
-		ost_eof = 0;
-		ost_done = 0;
-		do {
-			if (get_num_extents == 0) {
-				/* Don't get too many extents. */
-				if (current_extent + count_local >
-				    fiemap->fm_extent_count)
-					count_local = fiemap->fm_extent_count -
-								 current_extent;
-			}
-
-			lun_start += len_mapped_single_call;
-			fm_local->fm_length = req_fm_len - len_mapped_single_call;
-			req_fm_len = fm_local->fm_length;
-			fm_local->fm_extent_count = count_local;
-			fm_local->fm_mapped_extents = 0;
-			fm_local->fm_flags = fiemap->fm_flags;
-
-			fm_key->oa.o_oi = lsm->lsm_oinfo[cur_stripe]->loi_oi;
-			ost_index = lsm->lsm_oinfo[cur_stripe]->loi_ost_idx;
-
-			if (ost_index < 0 ||
-			    ost_index >= lov->desc.ld_tgt_count) {
-				rc = -EINVAL;
-				goto out;
-			}
-
-			/* If OST is inactive, return extent with UNKNOWN flag */
-			if (!lov->lov_tgts[ost_index]->ltd_active) {
-				fm_local->fm_flags |= FIEMAP_EXTENT_LAST;
-				fm_local->fm_mapped_extents = 1;
-
-				lcl_fm_ext[0].fe_logical = lun_start;
-				lcl_fm_ext[0].fe_length = obd_object_end -
-								      lun_start;
-				lcl_fm_ext[0].fe_flags |= FIEMAP_EXTENT_UNKNOWN;
-
-				goto inactive_tgt;
-			}
-
-			fm_local->fm_start = lun_start;
-			fm_local->fm_flags &= ~FIEMAP_FLAG_DEVICE_ORDER;
-			memcpy(&fm_key->fiemap, fm_local, sizeof(*fm_local));
-			*vallen=fiemap_count_to_size(fm_local->fm_extent_count);
-			rc = obd_get_info(NULL,
-					  lov->lov_tgts[ost_index]->ltd_exp,
-					  keylen, key, vallen, fm_local, lsm);
-			if (rc != 0)
-				goto out;
-
-inactive_tgt:
-			ext_count = fm_local->fm_mapped_extents;
-			if (ext_count == 0) {
-				ost_done = 1;
-				/* If last stripe has hole at the end,
-				 * then we need to return */
-				if (cur_stripe_wrap == last_stripe) {
-					fiemap->fm_mapped_extents = 0;
-					goto finish;
-				}
-				break;
-			}
-
-			/* If we just need num of extents then go to next device */
-			if (get_num_extents) {
-				current_extent += ext_count;
-				break;
-			}
-
-			len_mapped_single_call = lcl_fm_ext[ext_count-1].fe_logical -
-				  lun_start + lcl_fm_ext[ext_count - 1].fe_length;
-
-			/* Have we finished mapping on this device? */
-			if (req_fm_len <= len_mapped_single_call)
-				ost_done = 1;
-
-			/* Clear the EXTENT_LAST flag which can be present on
-			 * last extent */
-			if (lcl_fm_ext[ext_count-1].fe_flags & FIEMAP_EXTENT_LAST)
-				lcl_fm_ext[ext_count - 1].fe_flags &=
-							    ~FIEMAP_EXTENT_LAST;
-
-			curr_loc = lov_stripe_size(lsm,
-					   lcl_fm_ext[ext_count - 1].fe_logical+
-					   lcl_fm_ext[ext_count - 1].fe_length,
-					   cur_stripe);
-			if (curr_loc >= fm_key->oa.o_size)
-				ost_eof = 1;
-
-			fiemap_prepare_and_copy_exts(fiemap, lcl_fm_ext,
-						     ost_index, ext_count,
-						     current_extent);
-
-			current_extent += ext_count;
-
-			/* Ran out of available extents? */
-			if (current_extent >= fiemap->fm_extent_count)
-				goto finish;
-		} while (ost_done == 0 && ost_eof == 0);
-
-		if (cur_stripe_wrap == last_stripe)
-			goto finish;
-	}
-
-finish:
-	/* Indicate that we are returning device offsets unless file just has
-	 * single stripe */
-	if (lsm->lsm_stripe_count > 1)
-		fiemap->fm_flags |= FIEMAP_FLAG_DEVICE_ORDER;
-
-	if (get_num_extents)
-		goto skip_last_device_calc;
-
-	/* Check if we have reached the last stripe and whether mapping for that
-	 * stripe is done. */
-	if (cur_stripe_wrap == last_stripe) {
-		if (ost_done || ost_eof)
-			fiemap->fm_extents[current_extent - 1].fe_flags |=
-							     FIEMAP_EXTENT_LAST;
-	}
-
-skip_last_device_calc:
-	fiemap->fm_mapped_extents = current_extent;
-
-out:
-	kvfree(fm_local);
-	return rc;
-}
-
-static int lov_get_info(const struct lu_env *env, struct obd_export *exp,
-			__u32 keylen, void *key, __u32 *vallen, void *val,
-			struct lov_stripe_md *lsm)
-{
-	struct obd_device *obddev = class_exp2obd(exp);
-	struct lov_obd *lov = &obddev->u.lov;
-	int i, rc;
-
-	if (!vallen || !val)
-		return -EFAULT;
-
-	obd_getref(obddev);
-
-	if (KEY_IS(KEY_LOCK_TO_STRIPE)) {
-		struct {
-			char name[16];
-			struct ldlm_lock *lock;
-		} *data = key;
-		struct ldlm_res_id *res_id = &data->lock->l_resource->lr_name;
-		struct lov_oinfo *loi;
-		__u32 *stripe = val;
-
-		if (*vallen < sizeof(*stripe)) {
-			rc = -EFAULT;
-			goto out;
-		}
-		*vallen = sizeof(*stripe);
-
-		/* XXX This is another one of those bits that will need to
-		 * change if we ever actually support nested LOVs.  It uses
-		 * the lock's export to find out which stripe it is. */
-		/* XXX - it's assumed all the locks for deleted OSTs have
-		 * been cancelled. Also, the export for deleted OSTs will
-		 * be NULL and won't match the lock's export. */
-		for (i = 0; i < lsm->lsm_stripe_count; i++) {
-			loi = lsm->lsm_oinfo[i];
-			if (lov_oinfo_is_dummy(loi))
-				continue;
-
-			if (!lov->lov_tgts[loi->loi_ost_idx])
-				continue;
-			if (lov->lov_tgts[loi->loi_ost_idx]->ltd_exp ==
-			    data->lock->l_conn_export &&
-			    ostid_res_name_eq(&loi->loi_oi, res_id)) {
-				*stripe = i;
-				rc = 0;
-				goto out;
-			}
-		}
-		LDLM_ERROR(data->lock, "lock on inode without such object");
-		dump_lsm(D_ERROR, lsm);
-		rc = -ENXIO;
-		goto out;
-	} else if (KEY_IS(KEY_LAST_ID)) {
-		struct obd_id_info *info = val;
-		__u32 size = sizeof(u64);
-		struct lov_tgt_desc *tgt;
-
-		LASSERT(*vallen == sizeof(struct obd_id_info));
-		tgt = lov->lov_tgts[info->idx];
-
-		if (!tgt || !tgt->ltd_active) {
-			rc = -ESRCH;
-			goto out;
-		}
-
-		rc = obd_get_info(env, tgt->ltd_exp, keylen, key,
-				  &size, info->data, NULL);
-		rc = 0;
-		goto out;
-	} else if (KEY_IS(KEY_LOVDESC)) {
-		struct lov_desc *desc_ret = val;
-		*desc_ret = lov->desc;
-
-		rc = 0;
-		goto out;
-	} else if (KEY_IS(KEY_FIEMAP)) {
-		rc = lov_fiemap(lov, keylen, key, vallen, val, lsm);
-		goto out;
-	} else if (KEY_IS(KEY_CONNECT_FLAG)) {
-		struct lov_tgt_desc *tgt;
-		__u64 ost_idx = *((__u64 *)val);
-
-		LASSERT(*vallen == sizeof(__u64));
-		LASSERT(ost_idx < lov->desc.ld_tgt_count);
-		tgt = lov->lov_tgts[ost_idx];
-
-		if (!tgt || !tgt->ltd_exp) {
-			rc = -ESRCH;
-			goto out;
-		}
-
-		*((__u64 *)val) = exp_connect_flags(tgt->ltd_exp);
-		rc = 0;
-		goto out;
-	} else if (KEY_IS(KEY_TGT_COUNT)) {
-		*((int *)val) = lov->desc.ld_tgt_count;
-		rc = 0;
-		goto out;
-	}
-
-	rc = -EINVAL;
-
-out:
-	obd_putref(obddev);
-	return rc;
-}
-
-static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
-			      u32 keylen, void *key, u32 vallen,
-			      void *val, struct ptlrpc_request_set *set)
-{
-	struct obd_device *obddev = class_exp2obd(exp);
-	struct lov_obd *lov = &obddev->u.lov;
-	u32 count;
-	int i, rc = 0, err;
-	struct lov_tgt_desc *tgt;
-	unsigned incr, check_uuid,
-		 do_inactive, no_set;
-	unsigned next_id = 0,  mds_con = 0, capa = 0;
-
-	incr = check_uuid = do_inactive = no_set = 0;
-	if (set == NULL) {
-		no_set = 1;
-		set = ptlrpc_prep_set();
-		if (!set)
-			return -ENOMEM;
-	}
-
-	obd_getref(obddev);
-	count = lov->desc.ld_tgt_count;
-
-	if (KEY_IS(KEY_NEXT_ID)) {
-		count = vallen / sizeof(struct obd_id_info);
-		vallen = sizeof(u64);
-		incr = sizeof(struct obd_id_info);
-		do_inactive = 1;
-		next_id = 1;
-	} else if (KEY_IS(KEY_CHECKSUM)) {
-		do_inactive = 1;
-	} else if (KEY_IS(KEY_EVICT_BY_NID)) {
-		/* use defaults:  do_inactive = incr = 0; */
-	} else if (KEY_IS(KEY_MDS_CONN)) {
-		mds_con = 1;
-	} else if (KEY_IS(KEY_CAPA_KEY)) {
-		capa = 1;
-	} else if (KEY_IS(KEY_CACHE_SET)) {
-		LASSERT(lov->lov_cache == NULL);
-		lov->lov_cache = val;
-		do_inactive = 1;
-	}
-
-	for (i = 0; i < count; i++, val = (char *)val + incr) {
-		if (next_id) {
-			tgt = lov->lov_tgts[((struct obd_id_info *)val)->idx];
-		} else {
-			tgt = lov->lov_tgts[i];
-		}
-		/* OST was disconnected */
-		if (!tgt || !tgt->ltd_exp)
-			continue;
-
-		/* OST is inactive and we don't want inactive OSCs */
-		if (!tgt->ltd_active && !do_inactive)
-			continue;
-
-		if (mds_con) {
-			struct mds_group_info *mgi;
-
-			LASSERT(vallen == sizeof(*mgi));
-			mgi = (struct mds_group_info *)val;
-
-			/* Only want a specific OSC */
-			if (mgi->uuid && !obd_uuid_equals(mgi->uuid,
-						&tgt->ltd_uuid))
-				continue;
-
-			err = obd_set_info_async(env, tgt->ltd_exp,
-					 keylen, key, sizeof(int),
-					 &mgi->group, set);
-		} else if (next_id) {
-			err = obd_set_info_async(env, tgt->ltd_exp,
-					 keylen, key, vallen,
-					 ((struct obd_id_info *)val)->data, set);
-		} else if (capa) {
-			struct mds_capa_info *info = (struct mds_capa_info *)val;
-
-			LASSERT(vallen == sizeof(*info));
-
-			 /* Only want a specific OSC */
-			if (info->uuid &&
-			    !obd_uuid_equals(info->uuid, &tgt->ltd_uuid))
-				continue;
-
-			err = obd_set_info_async(env, tgt->ltd_exp, keylen,
-						 key, sizeof(*info->capa),
-						 info->capa, set);
-		} else {
-			/* Only want a specific OSC */
-			if (check_uuid &&
-			    !obd_uuid_equals(val, &tgt->ltd_uuid))
-				continue;
-
-			err = obd_set_info_async(env, tgt->ltd_exp,
-					 keylen, key, vallen, val, set);
-		}
-
-		if (!rc)
-			rc = err;
-	}
-
-	obd_putref(obddev);
-	if (no_set) {
-		err = ptlrpc_set_wait(set);
-		if (!rc)
-			rc = err;
-		ptlrpc_set_destroy(set);
-	}
-	return rc;
-}
-
-void lov_stripe_lock(struct lov_stripe_md *md)
-		__acquires(&md->lsm_lock)
-{
-	LASSERT(md->lsm_lock_owner != current_pid());
-	spin_lock(&md->lsm_lock);
-	LASSERT(md->lsm_lock_owner == 0);
-	md->lsm_lock_owner = current_pid();
-}
-EXPORT_SYMBOL(lov_stripe_lock);
-
-void lov_stripe_unlock(struct lov_stripe_md *md)
-		__releases(&md->lsm_lock)
-{
-	LASSERT(md->lsm_lock_owner == current_pid());
-	md->lsm_lock_owner = 0;
-	spin_unlock(&md->lsm_lock);
-}
-EXPORT_SYMBOL(lov_stripe_unlock);
-
-static int lov_quotactl(struct obd_device *obd, struct obd_export *exp,
-			struct obd_quotactl *oqctl)
-{
-	struct lov_obd      *lov = &obd->u.lov;
-	struct lov_tgt_desc *tgt;
-	__u64		curspace = 0;
-	__u64		bhardlimit = 0;
-	int		  i, rc = 0;
-
-	if (oqctl->qc_cmd != LUSTRE_Q_QUOTAON &&
-	    oqctl->qc_cmd != LUSTRE_Q_QUOTAOFF &&
-	    oqctl->qc_cmd != Q_GETOQUOTA &&
-	    oqctl->qc_cmd != Q_INITQUOTA &&
-	    oqctl->qc_cmd != LUSTRE_Q_SETQUOTA &&
-	    oqctl->qc_cmd != Q_FINVALIDATE) {
-		CERROR("bad quota opc %x for lov obd", oqctl->qc_cmd);
-		return -EFAULT;
-	}
-
-	/* for lov tgt */
-	obd_getref(obd);
-	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-		int err;
-
-		tgt = lov->lov_tgts[i];
-
-		if (!tgt)
-			continue;
-
-		if (!tgt->ltd_active || tgt->ltd_reap) {
-			if (oqctl->qc_cmd == Q_GETOQUOTA &&
-			    lov->lov_tgts[i]->ltd_activate) {
-				rc = -EREMOTEIO;
-				CERROR("ost %d is inactive\n", i);
-			} else {
-				CDEBUG(D_HA, "ost %d is inactive\n", i);
-			}
-			continue;
-		}
-
-		err = obd_quotactl(tgt->ltd_exp, oqctl);
-		if (err) {
-			if (tgt->ltd_active && !rc)
-				rc = err;
-			continue;
-		}
-
-		if (oqctl->qc_cmd == Q_GETOQUOTA) {
-			curspace += oqctl->qc_dqblk.dqb_curspace;
-			bhardlimit += oqctl->qc_dqblk.dqb_bhardlimit;
-		}
-	}
-	obd_putref(obd);
-
-	if (oqctl->qc_cmd == Q_GETOQUOTA) {
-		oqctl->qc_dqblk.dqb_curspace = curspace;
-		oqctl->qc_dqblk.dqb_bhardlimit = bhardlimit;
-	}
-	return rc;
-}
-
-static int lov_quotacheck(struct obd_device *obd, struct obd_export *exp,
-			  struct obd_quotactl *oqctl)
-{
-	struct lov_obd *lov = &obd->u.lov;
-	int	     i, rc = 0;
-
-	obd_getref(obd);
-
-	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-		if (!lov->lov_tgts[i])
-			continue;
-
-		/* Skip quota check on the administratively disabled OSTs. */
-		if (!lov->lov_tgts[i]->ltd_activate) {
-			CWARN("lov idx %d was administratively disabled, skip quotacheck on it.\n",
-			      i);
-			continue;
-		}
-
-		if (!lov->lov_tgts[i]->ltd_active) {
-			CERROR("lov idx %d inactive\n", i);
-			rc = -EIO;
-			goto out;
-		}
-	}
-
-	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-		int err;
-
-		if (!lov->lov_tgts[i] || !lov->lov_tgts[i]->ltd_activate)
-			continue;
-
-		err = obd_quotacheck(lov->lov_tgts[i]->ltd_exp, oqctl);
-		if (err && !rc)
-			rc = err;
-	}
-
-out:
-	obd_putref(obd);
-
-	return rc;
-}
-
-static struct obd_ops lov_obd_ops = {
-	.o_owner	       = THIS_MODULE,
-	.o_setup	       = lov_setup,
-	.o_precleanup	  = lov_precleanup,
-	.o_cleanup	     = lov_cleanup,
-	/*.o_process_config      = lov_process_config,*/
-	.o_connect	     = lov_connect,
-	.o_disconnect	  = lov_disconnect,
-	.o_statfs	      = lov_statfs,
-	.o_statfs_async	= lov_statfs_async,
-	.o_packmd	      = lov_packmd,
-	.o_unpackmd	    = lov_unpackmd,
-	.o_create	      = lov_create,
-	.o_destroy	     = lov_destroy,
-	.o_getattr_async       = lov_getattr_async,
-	.o_setattr_async       = lov_setattr_async,
-	.o_adjust_kms	  = lov_adjust_kms,
-	.o_find_cbdata	 = lov_find_cbdata,
-	.o_iocontrol	   = lov_iocontrol,
-	.o_get_info	    = lov_get_info,
-	.o_set_info_async      = lov_set_info_async,
-	.o_notify	      = lov_notify,
-	.o_pool_new	    = lov_pool_new,
-	.o_pool_rem	    = lov_pool_remove,
-	.o_pool_add	    = lov_pool_add,
-	.o_pool_del	    = lov_pool_del,
-	.o_getref	      = lov_getref,
-	.o_putref	      = lov_putref,
-	.o_quotactl	    = lov_quotactl,
-	.o_quotacheck	  = lov_quotacheck,
-};
-
-struct kmem_cache *lov_oinfo_slab;
-
-static int __init lov_init(void)
-{
-	struct lprocfs_static_vars lvars = { NULL };
-	int rc;
-
-	/* print an address of _any_ initialized kernel symbol from this
-	 * module, to allow debugging with gdb that doesn't support data
-	 * symbols from modules.*/
-	CDEBUG(D_INFO, "Lustre LOV module (%p).\n", &lov_caches);
-
-	rc = lu_kmem_init(lov_caches);
-	if (rc)
-		return rc;
-
-	lov_oinfo_slab = kmem_cache_create("lov_oinfo",
-					      sizeof(struct lov_oinfo),
-					      0, SLAB_HWCACHE_ALIGN, NULL);
-	if (lov_oinfo_slab == NULL) {
-		lu_kmem_fini(lov_caches);
-		return -ENOMEM;
-	}
-	lprocfs_lov_init_vars(&lvars);
-
-	rc = class_register_type(&lov_obd_ops, NULL,
-				 LUSTRE_LOV_NAME, &lov_device_type);
-
-	if (rc) {
-		kmem_cache_destroy(lov_oinfo_slab);
-		lu_kmem_fini(lov_caches);
-	}
-
-	return rc;
-}
-
-static void /*__exit*/ lov_exit(void)
-{
-	class_unregister_type(LUSTRE_LOV_NAME);
-	kmem_cache_destroy(lov_oinfo_slab);
-
-	lu_kmem_fini(lov_caches);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Logical Object Volume OBD driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(LUSTRE_VERSION_STRING);
-
-module_init(lov_init);
-module_exit(lov_exit);
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
deleted file mode 100644
index 4d7cd924a27e..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ /dev/null
@@ -1,1002 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_object for LOV layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-#include "../include/lclient.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-/*****************************************************************************
- *
- * Layout operations.
- *
- */
-
-struct lov_layout_operations {
-	int (*llo_init)(const struct lu_env *env, struct lov_device *dev,
-			struct lov_object *lov,
-			const struct cl_object_conf *conf,
-			union lov_layout_state *state);
-	int (*llo_delete)(const struct lu_env *env, struct lov_object *lov,
-			   union lov_layout_state *state);
-	void (*llo_fini)(const struct lu_env *env, struct lov_object *lov,
-			 union lov_layout_state *state);
-	void (*llo_install)(const struct lu_env *env, struct lov_object *lov,
-			    union lov_layout_state *state);
-	int  (*llo_print)(const struct lu_env *env, void *cookie,
-			  lu_printer_t p, const struct lu_object *o);
-	int  (*llo_page_init)(const struct lu_env *env, struct cl_object *obj,
-				struct cl_page *page, struct page *vmpage);
-	int  (*llo_lock_init)(const struct lu_env *env,
-			      struct cl_object *obj, struct cl_lock *lock,
-			      const struct cl_io *io);
-	int  (*llo_io_init)(const struct lu_env *env,
-			    struct cl_object *obj, struct cl_io *io);
-	int  (*llo_getattr)(const struct lu_env *env, struct cl_object *obj,
-			    struct cl_attr *attr);
-};
-
-static int lov_layout_wait(const struct lu_env *env, struct lov_object *lov);
-
-/*****************************************************************************
- *
- * Lov object layout operations.
- *
- */
-
-static void lov_install_empty(const struct lu_env *env,
-			      struct lov_object *lov,
-			      union  lov_layout_state *state)
-{
-	/*
-	 * File without objects.
-	 */
-}
-
-static int lov_init_empty(const struct lu_env *env,
-			  struct lov_device *dev, struct lov_object *lov,
-			  const struct cl_object_conf *conf,
-			  union  lov_layout_state *state)
-{
-	return 0;
-}
-
-static void lov_install_raid0(const struct lu_env *env,
-			      struct lov_object *lov,
-			      union  lov_layout_state *state)
-{
-}
-
-static struct cl_object *lov_sub_find(const struct lu_env *env,
-				      struct cl_device *dev,
-				      const struct lu_fid *fid,
-				      const struct cl_object_conf *conf)
-{
-	struct lu_object *o;
-
-	o = lu_object_find_at(env, cl2lu_dev(dev), fid, &conf->coc_lu);
-	LASSERT(ergo(!IS_ERR(o), o->lo_dev->ld_type == &lovsub_device_type));
-	return lu2cl(o);
-}
-
-static int lov_init_sub(const struct lu_env *env, struct lov_object *lov,
-			struct cl_object *stripe, struct lov_layout_raid0 *r0,
-			int idx)
-{
-	struct cl_object_header *hdr;
-	struct cl_object_header *subhdr;
-	struct cl_object_header *parent;
-	struct lov_oinfo	*oinfo;
-	int result;
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_LOV_INIT)) {
-		/* For sanity:test_206.
-		 * Do not leave the object in cache to avoid accessing
-		 * freed memory. This is because osc_object is referring to
-		 * lov_oinfo of lsm_stripe_data which will be freed due to
-		 * this failure. */
-		cl_object_kill(env, stripe);
-		cl_object_put(env, stripe);
-		return -EIO;
-	}
-
-	hdr    = cl_object_header(lov2cl(lov));
-	subhdr = cl_object_header(stripe);
-
-	oinfo = lov->lo_lsm->lsm_oinfo[idx];
-	CDEBUG(D_INODE, DFID"@%p[%d] -> "DFID"@%p: ostid: "DOSTID
-	       " idx: %d gen: %d\n",
-	       PFID(&subhdr->coh_lu.loh_fid), subhdr, idx,
-	       PFID(&hdr->coh_lu.loh_fid), hdr, POSTID(&oinfo->loi_oi),
-	       oinfo->loi_ost_idx, oinfo->loi_ost_gen);
-
-	/* reuse ->coh_attr_guard to protect coh_parent change */
-	spin_lock(&subhdr->coh_attr_guard);
-	parent = subhdr->coh_parent;
-	if (parent == NULL) {
-		subhdr->coh_parent = hdr;
-		spin_unlock(&subhdr->coh_attr_guard);
-		subhdr->coh_nesting = hdr->coh_nesting + 1;
-		lu_object_ref_add(&stripe->co_lu, "lov-parent", lov);
-		r0->lo_sub[idx] = cl2lovsub(stripe);
-		r0->lo_sub[idx]->lso_super = lov;
-		r0->lo_sub[idx]->lso_index = idx;
-		result = 0;
-	} else {
-		struct lu_object  *old_obj;
-		struct lov_object *old_lov;
-		unsigned int mask = D_INODE;
-
-		spin_unlock(&subhdr->coh_attr_guard);
-		old_obj = lu_object_locate(&parent->coh_lu, &lov_device_type);
-		LASSERT(old_obj != NULL);
-		old_lov = cl2lov(lu2cl(old_obj));
-		if (old_lov->lo_layout_invalid) {
-			/* the object's layout has already changed but isn't
-			 * refreshed */
-			lu_object_unhash(env, &stripe->co_lu);
-			result = -EAGAIN;
-		} else {
-			mask = D_ERROR;
-			result = -EIO;
-		}
-
-		LU_OBJECT_DEBUG(mask, env, &stripe->co_lu,
-				"stripe %d is already owned.\n", idx);
-		LU_OBJECT_DEBUG(mask, env, old_obj, "owned.\n");
-		LU_OBJECT_HEADER(mask, env, lov2lu(lov), "try to own.\n");
-		cl_object_put(env, stripe);
-	}
-	return result;
-}
-
-static int lov_init_raid0(const struct lu_env *env,
-			  struct lov_device *dev, struct lov_object *lov,
-			  const struct cl_object_conf *conf,
-			  union  lov_layout_state *state)
-{
-	int result;
-	int i;
-
-	struct cl_object	*stripe;
-	struct lov_thread_info  *lti     = lov_env_info(env);
-	struct cl_object_conf   *subconf = &lti->lti_stripe_conf;
-	struct lov_stripe_md    *lsm     = conf->u.coc_md->lsm;
-	struct lu_fid	   *ofid    = &lti->lti_fid;
-	struct lov_layout_raid0 *r0      = &state->raid0;
-
-	if (lsm->lsm_magic != LOV_MAGIC_V1 && lsm->lsm_magic != LOV_MAGIC_V3) {
-		dump_lsm(D_ERROR, lsm);
-		LASSERTF(0, "magic mismatch, expected %d/%d, actual %d.\n",
-			 LOV_MAGIC_V1, LOV_MAGIC_V3, lsm->lsm_magic);
-	}
-
-	LASSERT(lov->lo_lsm == NULL);
-	lov->lo_lsm = lsm_addref(lsm);
-	r0->lo_nr  = lsm->lsm_stripe_count;
-	LASSERT(r0->lo_nr <= lov_targets_nr(dev));
-
-	r0->lo_sub = libcfs_kvzalloc(r0->lo_nr * sizeof(r0->lo_sub[0]),
-				     GFP_NOFS);
-	if (r0->lo_sub != NULL) {
-		result = 0;
-		subconf->coc_inode = conf->coc_inode;
-		spin_lock_init(&r0->lo_sub_lock);
-		/*
-		 * Create stripe cl_objects.
-		 */
-		for (i = 0; i < r0->lo_nr && result == 0; ++i) {
-			struct cl_device *subdev;
-			struct lov_oinfo *oinfo = lsm->lsm_oinfo[i];
-			int ost_idx = oinfo->loi_ost_idx;
-
-			if (lov_oinfo_is_dummy(oinfo))
-				continue;
-
-			result = ostid_to_fid(ofid, &oinfo->loi_oi,
-					      oinfo->loi_ost_idx);
-			if (result != 0)
-				goto out;
-
-			subdev = lovsub2cl_dev(dev->ld_target[ost_idx]);
-			subconf->u.coc_oinfo = oinfo;
-			LASSERTF(subdev != NULL, "not init ost %d\n", ost_idx);
-			/* In the function below, .hs_keycmp resolves to
-			 * lu_obj_hop_keycmp() */
-			/* coverity[overrun-buffer-val] */
-			stripe = lov_sub_find(env, subdev, ofid, subconf);
-			if (!IS_ERR(stripe)) {
-				result = lov_init_sub(env, lov, stripe, r0, i);
-				if (result == -EAGAIN) { /* try again */
-					--i;
-					result = 0;
-				}
-			} else {
-				result = PTR_ERR(stripe);
-			}
-		}
-	} else
-		result = -ENOMEM;
-out:
-	return result;
-}
-
-static int lov_init_released(const struct lu_env *env,
-			struct lov_device *dev, struct lov_object *lov,
-			const struct cl_object_conf *conf,
-			union  lov_layout_state *state)
-{
-	struct lov_stripe_md *lsm = conf->u.coc_md->lsm;
-
-	LASSERT(lsm != NULL);
-	LASSERT(lsm_is_released(lsm));
-	LASSERT(lov->lo_lsm == NULL);
-
-	lov->lo_lsm = lsm_addref(lsm);
-	return 0;
-}
-
-static int lov_delete_empty(const struct lu_env *env, struct lov_object *lov,
-			    union lov_layout_state *state)
-{
-	LASSERT(lov->lo_type == LLT_EMPTY || lov->lo_type == LLT_RELEASED);
-
-	lov_layout_wait(env, lov);
-
-	cl_object_prune(env, &lov->lo_cl);
-	return 0;
-}
-
-static void lov_subobject_kill(const struct lu_env *env, struct lov_object *lov,
-			       struct lovsub_object *los, int idx)
-{
-	struct cl_object	*sub;
-	struct lov_layout_raid0 *r0;
-	struct lu_site	  *site;
-	struct lu_site_bkt_data *bkt;
-	wait_queue_t	  *waiter;
-
-	r0  = &lov->u.raid0;
-	LASSERT(r0->lo_sub[idx] == los);
-
-	sub  = lovsub2cl(los);
-	site = sub->co_lu.lo_dev->ld_site;
-	bkt  = lu_site_bkt_from_fid(site, &sub->co_lu.lo_header->loh_fid);
-
-	cl_object_kill(env, sub);
-	/* release a reference to the sub-object and ... */
-	lu_object_ref_del(&sub->co_lu, "lov-parent", lov);
-	cl_object_put(env, sub);
-
-	/* ... wait until it is actually destroyed---sub-object clears its
-	 * ->lo_sub[] slot in lovsub_object_fini() */
-	if (r0->lo_sub[idx] == los) {
-		waiter = &lov_env_info(env)->lti_waiter;
-		init_waitqueue_entry(waiter, current);
-		add_wait_queue(&bkt->lsb_marche_funebre, waiter);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		while (1) {
-			/* this wait-queue is signaled at the end of
-			 * lu_object_free(). */
-			set_current_state(TASK_UNINTERRUPTIBLE);
-			spin_lock(&r0->lo_sub_lock);
-			if (r0->lo_sub[idx] == los) {
-				spin_unlock(&r0->lo_sub_lock);
-				schedule();
-			} else {
-				spin_unlock(&r0->lo_sub_lock);
-				set_current_state(TASK_RUNNING);
-				break;
-			}
-		}
-		remove_wait_queue(&bkt->lsb_marche_funebre, waiter);
-	}
-	LASSERT(r0->lo_sub[idx] == NULL);
-}
-
-static int lov_delete_raid0(const struct lu_env *env, struct lov_object *lov,
-			    union lov_layout_state *state)
-{
-	struct lov_layout_raid0 *r0 = &state->raid0;
-	struct lov_stripe_md    *lsm = lov->lo_lsm;
-	int i;
-
-	dump_lsm(D_INODE, lsm);
-
-	lov_layout_wait(env, lov);
-	if (r0->lo_sub != NULL) {
-		for (i = 0; i < r0->lo_nr; ++i) {
-			struct lovsub_object *los = r0->lo_sub[i];
-
-			if (los != NULL) {
-				cl_locks_prune(env, &los->lso_cl, 1);
-				/*
-				 * If top-level object is to be evicted from
-				 * the cache, so are its sub-objects.
-				 */
-				lov_subobject_kill(env, lov, los, i);
-			}
-		}
-	}
-	cl_object_prune(env, &lov->lo_cl);
-	return 0;
-}
-
-static void lov_fini_empty(const struct lu_env *env, struct lov_object *lov,
-			   union lov_layout_state *state)
-{
-	LASSERT(lov->lo_type == LLT_EMPTY || lov->lo_type == LLT_RELEASED);
-}
-
-static void lov_fini_raid0(const struct lu_env *env, struct lov_object *lov,
-			   union lov_layout_state *state)
-{
-	struct lov_layout_raid0 *r0 = &state->raid0;
-
-	if (r0->lo_sub != NULL) {
-		kvfree(r0->lo_sub);
-		r0->lo_sub = NULL;
-	}
-
-	dump_lsm(D_INODE, lov->lo_lsm);
-	lov_free_memmd(&lov->lo_lsm);
-}
-
-static void lov_fini_released(const struct lu_env *env, struct lov_object *lov,
-				union lov_layout_state *state)
-{
-	dump_lsm(D_INODE, lov->lo_lsm);
-	lov_free_memmd(&lov->lo_lsm);
-}
-
-static int lov_print_empty(const struct lu_env *env, void *cookie,
-			   lu_printer_t p, const struct lu_object *o)
-{
-	(*p)(env, cookie, "empty %d\n", lu2lov(o)->lo_layout_invalid);
-	return 0;
-}
-
-static int lov_print_raid0(const struct lu_env *env, void *cookie,
-			   lu_printer_t p, const struct lu_object *o)
-{
-	struct lov_object	*lov = lu2lov(o);
-	struct lov_layout_raid0	*r0  = lov_r0(lov);
-	struct lov_stripe_md	*lsm = lov->lo_lsm;
-	int			 i;
-
-	(*p)(env, cookie, "stripes: %d, %s, lsm{%p 0x%08X %d %u %u}:\n",
-		r0->lo_nr, lov->lo_layout_invalid ? "invalid" : "valid", lsm,
-		lsm->lsm_magic, atomic_read(&lsm->lsm_refc),
-		lsm->lsm_stripe_count, lsm->lsm_layout_gen);
-	for (i = 0; i < r0->lo_nr; ++i) {
-		struct lu_object *sub;
-
-		if (r0->lo_sub[i] != NULL) {
-			sub = lovsub2lu(r0->lo_sub[i]);
-			lu_object_print(env, cookie, p, sub);
-		} else {
-			(*p)(env, cookie, "sub %d absent\n", i);
-		}
-	}
-	return 0;
-}
-
-static int lov_print_released(const struct lu_env *env, void *cookie,
-				lu_printer_t p, const struct lu_object *o)
-{
-	struct lov_object	*lov = lu2lov(o);
-	struct lov_stripe_md	*lsm = lov->lo_lsm;
-
-	(*p)(env, cookie,
-		"released: %s, lsm{%p 0x%08X %d %u %u}:\n",
-		lov->lo_layout_invalid ? "invalid" : "valid", lsm,
-		lsm->lsm_magic, atomic_read(&lsm->lsm_refc),
-		lsm->lsm_stripe_count, lsm->lsm_layout_gen);
-	return 0;
-}
-
-/**
- * Implements cl_object_operations::coo_attr_get() method for an object
- * without stripes (LLT_EMPTY layout type).
- *
- * The only attributes this layer is authoritative in this case is
- * cl_attr::cat_blocks---it's 0.
- */
-static int lov_attr_get_empty(const struct lu_env *env, struct cl_object *obj,
-			      struct cl_attr *attr)
-{
-	attr->cat_blocks = 0;
-	return 0;
-}
-
-static int lov_attr_get_raid0(const struct lu_env *env, struct cl_object *obj,
-			      struct cl_attr *attr)
-{
-	struct lov_object	*lov = cl2lov(obj);
-	struct lov_layout_raid0 *r0 = lov_r0(lov);
-	struct cl_attr		*lov_attr = &r0->lo_attr;
-	int			 result = 0;
-
-	/* this is called w/o holding type guard mutex, so it must be inside
-	 * an on going IO otherwise lsm may be replaced.
-	 * LU-2117: it turns out there exists one exception. For mmaped files,
-	 * the lock of those files may be requested in the other file's IO
-	 * context, and this function is called in ccc_lock_state(), it will
-	 * hit this assertion.
-	 * Anyway, it's still okay to call attr_get w/o type guard as layout
-	 * can't go if locks exist. */
-	/* LASSERT(atomic_read(&lsm->lsm_refc) > 1); */
-
-	if (!r0->lo_attr_valid) {
-		struct lov_stripe_md    *lsm = lov->lo_lsm;
-		struct ost_lvb	  *lvb = &lov_env_info(env)->lti_lvb;
-		__u64		    kms = 0;
-
-		memset(lvb, 0, sizeof(*lvb));
-		/* XXX: timestamps can be negative by sanity:test_39m,
-		 * how can it be? */
-		lvb->lvb_atime = LLONG_MIN;
-		lvb->lvb_ctime = LLONG_MIN;
-		lvb->lvb_mtime = LLONG_MIN;
-
-		/*
-		 * XXX that should be replaced with a loop over sub-objects,
-		 * doing cl_object_attr_get() on them. But for now, let's
-		 * reuse old lov code.
-		 */
-
-		/*
-		 * XXX take lsm spin-lock to keep lov_merge_lvb_kms()
-		 * happy. It's not needed, because new code uses
-		 * ->coh_attr_guard spin-lock to protect consistency of
-		 * sub-object attributes.
-		 */
-		lov_stripe_lock(lsm);
-		result = lov_merge_lvb_kms(lsm, lvb, &kms);
-		lov_stripe_unlock(lsm);
-		if (result == 0) {
-			cl_lvb2attr(lov_attr, lvb);
-			lov_attr->cat_kms = kms;
-			r0->lo_attr_valid = 1;
-		}
-	}
-	if (result == 0) { /* merge results */
-		attr->cat_blocks = lov_attr->cat_blocks;
-		attr->cat_size = lov_attr->cat_size;
-		attr->cat_kms = lov_attr->cat_kms;
-		if (attr->cat_atime < lov_attr->cat_atime)
-			attr->cat_atime = lov_attr->cat_atime;
-		if (attr->cat_ctime < lov_attr->cat_ctime)
-			attr->cat_ctime = lov_attr->cat_ctime;
-		if (attr->cat_mtime < lov_attr->cat_mtime)
-			attr->cat_mtime = lov_attr->cat_mtime;
-	}
-	return result;
-}
-
-static const struct lov_layout_operations lov_dispatch[] = {
-	[LLT_EMPTY] = {
-		.llo_init      = lov_init_empty,
-		.llo_delete    = lov_delete_empty,
-		.llo_fini      = lov_fini_empty,
-		.llo_install   = lov_install_empty,
-		.llo_print     = lov_print_empty,
-		.llo_page_init = lov_page_init_empty,
-		.llo_lock_init = lov_lock_init_empty,
-		.llo_io_init   = lov_io_init_empty,
-		.llo_getattr   = lov_attr_get_empty
-	},
-	[LLT_RAID0] = {
-		.llo_init      = lov_init_raid0,
-		.llo_delete    = lov_delete_raid0,
-		.llo_fini      = lov_fini_raid0,
-		.llo_install   = lov_install_raid0,
-		.llo_print     = lov_print_raid0,
-		.llo_page_init = lov_page_init_raid0,
-		.llo_lock_init = lov_lock_init_raid0,
-		.llo_io_init   = lov_io_init_raid0,
-		.llo_getattr   = lov_attr_get_raid0
-	},
-	[LLT_RELEASED] = {
-		.llo_init      = lov_init_released,
-		.llo_delete    = lov_delete_empty,
-		.llo_fini      = lov_fini_released,
-		.llo_install   = lov_install_empty,
-		.llo_print     = lov_print_released,
-		.llo_page_init = lov_page_init_empty,
-		.llo_lock_init = lov_lock_init_empty,
-		.llo_io_init   = lov_io_init_released,
-		.llo_getattr   = lov_attr_get_empty
-	}
-};
-
-/**
- * Performs a double-dispatch based on the layout type of an object.
- */
-#define LOV_2DISPATCH_NOLOCK(obj, op, ...)			      \
-({								      \
-	struct lov_object		      *__obj = (obj);	  \
-	enum lov_layout_type		    __llt;		  \
-									\
-	__llt = __obj->lo_type;					 \
-	LASSERT(0 <= __llt && __llt < ARRAY_SIZE(lov_dispatch));	\
-	lov_dispatch[__llt].op(__VA_ARGS__);			    \
-})
-
-/**
- * Return lov_layout_type associated with a given lsm
- */
-static enum lov_layout_type lov_type(struct lov_stripe_md *lsm)
-{
-	if (lsm == NULL)
-		return LLT_EMPTY;
-	if (lsm_is_released(lsm))
-		return LLT_RELEASED;
-	return LLT_RAID0;
-}
-
-static inline void lov_conf_freeze(struct lov_object *lov)
-{
-	if (lov->lo_owner != current)
-		down_read(&lov->lo_type_guard);
-}
-
-static inline void lov_conf_thaw(struct lov_object *lov)
-{
-	if (lov->lo_owner != current)
-		up_read(&lov->lo_type_guard);
-}
-
-#define LOV_2DISPATCH_MAYLOCK(obj, op, lock, ...)		       \
-({								      \
-	struct lov_object		      *__obj = (obj);	  \
-	int				     __lock = !!(lock);      \
-	typeof(lov_dispatch[0].op(__VA_ARGS__)) __result;	       \
-									\
-	if (__lock)						     \
-		lov_conf_freeze(__obj);					\
-	__result = LOV_2DISPATCH_NOLOCK(obj, op, __VA_ARGS__);	  \
-	if (__lock)						     \
-		lov_conf_thaw(__obj);					\
-	__result;						       \
-})
-
-/**
- * Performs a locked double-dispatch based on the layout type of an object.
- */
-#define LOV_2DISPATCH(obj, op, ...)		     \
-	LOV_2DISPATCH_MAYLOCK(obj, op, 1, __VA_ARGS__)
-
-#define LOV_2DISPATCH_VOID(obj, op, ...)				\
-do {								    \
-	struct lov_object		      *__obj = (obj);	  \
-	enum lov_layout_type		    __llt;		  \
-									\
-	lov_conf_freeze(__obj);						\
-	__llt = __obj->lo_type;					 \
-	LASSERT(0 <= __llt && __llt < ARRAY_SIZE(lov_dispatch));	\
-	lov_dispatch[__llt].op(__VA_ARGS__);			    \
-	lov_conf_thaw(__obj);						\
-} while (0)
-
-static void lov_conf_lock(struct lov_object *lov)
-{
-	LASSERT(lov->lo_owner != current);
-	down_write(&lov->lo_type_guard);
-	LASSERT(lov->lo_owner == NULL);
-	lov->lo_owner = current;
-}
-
-static void lov_conf_unlock(struct lov_object *lov)
-{
-	lov->lo_owner = NULL;
-	up_write(&lov->lo_type_guard);
-}
-
-static int lov_layout_wait(const struct lu_env *env, struct lov_object *lov)
-{
-	struct l_wait_info lwi = { 0 };
-
-	while (atomic_read(&lov->lo_active_ios) > 0) {
-		CDEBUG(D_INODE, "file:"DFID" wait for active IO, now: %d.\n",
-			PFID(lu_object_fid(lov2lu(lov))),
-			atomic_read(&lov->lo_active_ios));
-
-		l_wait_event(lov->lo_waitq,
-			     atomic_read(&lov->lo_active_ios) == 0, &lwi);
-	}
-	return 0;
-}
-
-static int lov_layout_change(const struct lu_env *unused,
-			     struct lov_object *lov,
-			     const struct cl_object_conf *conf)
-{
-	int result;
-	enum lov_layout_type llt = LLT_EMPTY;
-	union lov_layout_state *state = &lov->u;
-	const struct lov_layout_operations *old_ops;
-	const struct lov_layout_operations *new_ops;
-
-	struct cl_object_header *hdr = cl_object_header(&lov->lo_cl);
-	void *cookie;
-	struct lu_env *env;
-	int refcheck;
-
-	LASSERT(0 <= lov->lo_type && lov->lo_type < ARRAY_SIZE(lov_dispatch));
-
-	if (conf->u.coc_md != NULL)
-		llt = lov_type(conf->u.coc_md->lsm);
-	LASSERT(0 <= llt && llt < ARRAY_SIZE(lov_dispatch));
-
-	cookie = cl_env_reenter();
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env)) {
-		cl_env_reexit(cookie);
-		return PTR_ERR(env);
-	}
-
-	CDEBUG(D_INODE, DFID" from %s to %s\n",
-	       PFID(lu_object_fid(lov2lu(lov))),
-	       llt2str(lov->lo_type), llt2str(llt));
-
-	old_ops = &lov_dispatch[lov->lo_type];
-	new_ops = &lov_dispatch[llt];
-
-	result = old_ops->llo_delete(env, lov, &lov->u);
-	if (result == 0) {
-		old_ops->llo_fini(env, lov, &lov->u);
-
-		LASSERT(atomic_read(&lov->lo_active_ios) == 0);
-		LASSERT(hdr->coh_tree.rnode == NULL);
-		LASSERT(hdr->coh_pages == 0);
-
-		lov->lo_type = LLT_EMPTY;
-		result = new_ops->llo_init(env,
-					lu2lov_dev(lov->lo_cl.co_lu.lo_dev),
-					lov, conf, state);
-		if (result == 0) {
-			new_ops->llo_install(env, lov, state);
-			lov->lo_type = llt;
-		} else {
-			new_ops->llo_delete(env, lov, state);
-			new_ops->llo_fini(env, lov, state);
-			/* this file becomes an EMPTY file. */
-		}
-	}
-
-	cl_env_put(env, &refcheck);
-	cl_env_reexit(cookie);
-	return result;
-}
-
-/*****************************************************************************
- *
- * Lov object operations.
- *
- */
-int lov_object_init(const struct lu_env *env, struct lu_object *obj,
-		    const struct lu_object_conf *conf)
-{
-	struct lov_device	    *dev   = lu2lov_dev(obj->lo_dev);
-	struct lov_object	    *lov   = lu2lov(obj);
-	const struct cl_object_conf  *cconf = lu2cl_conf(conf);
-	union  lov_layout_state      *set   = &lov->u;
-	const struct lov_layout_operations *ops;
-	int result;
-
-	init_rwsem(&lov->lo_type_guard);
-	atomic_set(&lov->lo_active_ios, 0);
-	init_waitqueue_head(&lov->lo_waitq);
-
-	cl_object_page_init(lu2cl(obj), sizeof(struct lov_page));
-
-	/* no locking is necessary, as object is being created */
-	lov->lo_type = lov_type(cconf->u.coc_md->lsm);
-	ops = &lov_dispatch[lov->lo_type];
-	result = ops->llo_init(env, dev, lov, cconf, set);
-	if (result == 0)
-		ops->llo_install(env, lov, set);
-	return result;
-}
-
-static int lov_conf_set(const struct lu_env *env, struct cl_object *obj,
-			const struct cl_object_conf *conf)
-{
-	struct lov_stripe_md	*lsm = NULL;
-	struct lov_object	*lov = cl2lov(obj);
-	int			 result = 0;
-
-	lov_conf_lock(lov);
-	if (conf->coc_opc == OBJECT_CONF_INVALIDATE) {
-		lov->lo_layout_invalid = true;
-		result = 0;
-		goto out;
-	}
-
-	if (conf->coc_opc == OBJECT_CONF_WAIT) {
-		if (lov->lo_layout_invalid &&
-		    atomic_read(&lov->lo_active_ios) > 0) {
-			lov_conf_unlock(lov);
-			result = lov_layout_wait(env, lov);
-			lov_conf_lock(lov);
-		}
-		goto out;
-	}
-
-	LASSERT(conf->coc_opc == OBJECT_CONF_SET);
-
-	if (conf->u.coc_md != NULL)
-		lsm = conf->u.coc_md->lsm;
-	if ((lsm == NULL && lov->lo_lsm == NULL) ||
-	    ((lsm != NULL && lov->lo_lsm != NULL) &&
-	     (lov->lo_lsm->lsm_layout_gen == lsm->lsm_layout_gen) &&
-	     (lov->lo_lsm->lsm_pattern == lsm->lsm_pattern))) {
-		/* same version of layout */
-		lov->lo_layout_invalid = false;
-		result = 0;
-		goto out;
-	}
-
-	/* will change layout - check if there still exists active IO. */
-	if (atomic_read(&lov->lo_active_ios) > 0) {
-		lov->lo_layout_invalid = true;
-		result = -EBUSY;
-		goto out;
-	}
-
-	lov->lo_layout_invalid = lov_layout_change(env, lov, conf);
-
-out:
-	lov_conf_unlock(lov);
-	CDEBUG(D_INODE, DFID" lo_layout_invalid=%d\n",
-	       PFID(lu_object_fid(lov2lu(lov))), lov->lo_layout_invalid);
-	return result;
-}
-
-static void lov_object_delete(const struct lu_env *env, struct lu_object *obj)
-{
-	struct lov_object *lov = lu2lov(obj);
-
-	LOV_2DISPATCH_VOID(lov, llo_delete, env, lov, &lov->u);
-}
-
-static void lov_object_free(const struct lu_env *env, struct lu_object *obj)
-{
-	struct lov_object *lov = lu2lov(obj);
-
-	LOV_2DISPATCH_VOID(lov, llo_fini, env, lov, &lov->u);
-	lu_object_fini(obj);
-	OBD_SLAB_FREE_PTR(lov, lov_object_kmem);
-}
-
-static int lov_object_print(const struct lu_env *env, void *cookie,
-			    lu_printer_t p, const struct lu_object *o)
-{
-	return LOV_2DISPATCH_NOLOCK(lu2lov(o), llo_print, env, cookie, p, o);
-}
-
-int lov_page_init(const struct lu_env *env, struct cl_object *obj,
-		struct cl_page *page, struct page *vmpage)
-{
-	return LOV_2DISPATCH_NOLOCK(cl2lov(obj),
-				    llo_page_init, env, obj, page, vmpage);
-}
-
-/**
- * Implements cl_object_operations::clo_io_init() method for lov
- * layer. Dispatches to the appropriate layout io initialization method.
- */
-int lov_io_init(const struct lu_env *env, struct cl_object *obj,
-		struct cl_io *io)
-{
-	CL_IO_SLICE_CLEAN(lov_env_io(env), lis_cl);
-	return LOV_2DISPATCH_MAYLOCK(cl2lov(obj), llo_io_init,
-				     !io->ci_ignore_layout, env, obj, io);
-}
-
-/**
- * An implementation of cl_object_operations::clo_attr_get() method for lov
- * layer. For raid0 layout this collects and merges attributes of all
- * sub-objects.
- */
-static int lov_attr_get(const struct lu_env *env, struct cl_object *obj,
-			struct cl_attr *attr)
-{
-	/* do not take lock, as this function is called under a
-	 * spin-lock. Layout is protected from changing by ongoing IO. */
-	return LOV_2DISPATCH_NOLOCK(cl2lov(obj), llo_getattr, env, obj, attr);
-}
-
-static int lov_attr_set(const struct lu_env *env, struct cl_object *obj,
-			const struct cl_attr *attr, unsigned valid)
-{
-	/*
-	 * No dispatch is required here, as no layout implements this.
-	 */
-	return 0;
-}
-
-int lov_lock_init(const struct lu_env *env, struct cl_object *obj,
-		  struct cl_lock *lock, const struct cl_io *io)
-{
-	/* No need to lock because we've taken one refcount of layout.  */
-	return LOV_2DISPATCH_NOLOCK(cl2lov(obj), llo_lock_init, env, obj, lock,
-				    io);
-}
-
-static const struct cl_object_operations lov_ops = {
-	.coo_page_init = lov_page_init,
-	.coo_lock_init = lov_lock_init,
-	.coo_io_init   = lov_io_init,
-	.coo_attr_get  = lov_attr_get,
-	.coo_attr_set  = lov_attr_set,
-	.coo_conf_set  = lov_conf_set
-};
-
-static const struct lu_object_operations lov_lu_obj_ops = {
-	.loo_object_init      = lov_object_init,
-	.loo_object_delete    = lov_object_delete,
-	.loo_object_release   = NULL,
-	.loo_object_free      = lov_object_free,
-	.loo_object_print     = lov_object_print,
-	.loo_object_invariant = NULL
-};
-
-struct lu_object *lov_object_alloc(const struct lu_env *env,
-				   const struct lu_object_header *unused,
-				   struct lu_device *dev)
-{
-	struct lov_object *lov;
-	struct lu_object  *obj;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lov, lov_object_kmem, GFP_NOFS);
-	if (lov != NULL) {
-		obj = lov2lu(lov);
-		lu_object_init(obj, NULL, dev);
-		lov->lo_cl.co_ops = &lov_ops;
-		lov->lo_type = -1; /* invalid, to catch uninitialized type */
-		/*
-		 * object io operation vector (cl_object::co_iop) is installed
-		 * later in lov_object_init(), as different vectors are used
-		 * for object with different layouts.
-		 */
-		obj->lo_ops = &lov_lu_obj_ops;
-	} else
-		obj = NULL;
-	return obj;
-}
-
-struct lov_stripe_md *lov_lsm_addref(struct lov_object *lov)
-{
-	struct lov_stripe_md *lsm = NULL;
-
-	lov_conf_freeze(lov);
-	if (lov->lo_lsm != NULL) {
-		lsm = lsm_addref(lov->lo_lsm);
-		CDEBUG(D_INODE, "lsm %p addref %d/%d by %p.\n",
-			lsm, atomic_read(&lsm->lsm_refc),
-			lov->lo_layout_invalid, current);
-	}
-	lov_conf_thaw(lov);
-	return lsm;
-}
-
-void lov_lsm_decref(struct lov_object *lov, struct lov_stripe_md *lsm)
-{
-	if (lsm == NULL)
-		return;
-
-	CDEBUG(D_INODE, "lsm %p decref %d by %p.\n",
-		lsm, atomic_read(&lsm->lsm_refc), current);
-
-	lov_free_memmd(&lsm);
-}
-
-struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj)
-{
-	struct lu_object *luobj;
-	struct lov_stripe_md *lsm = NULL;
-
-	if (clobj == NULL)
-		return NULL;
-
-	luobj = lu_object_locate(&cl_object_header(clobj)->coh_lu,
-				 &lov_device_type);
-	if (luobj != NULL)
-		lsm = lov_lsm_addref(lu2lov(luobj));
-	return lsm;
-}
-EXPORT_SYMBOL(lov_lsm_get);
-
-void lov_lsm_put(struct cl_object *unused, struct lov_stripe_md *lsm)
-{
-	if (lsm != NULL)
-		lov_free_memmd(&lsm);
-}
-EXPORT_SYMBOL(lov_lsm_put);
-
-int lov_read_and_clear_async_rc(struct cl_object *clob)
-{
-	struct lu_object *luobj;
-	int rc = 0;
-
-	luobj = lu_object_locate(&cl_object_header(clob)->coh_lu,
-				 &lov_device_type);
-	if (luobj != NULL) {
-		struct lov_object *lov = lu2lov(luobj);
-
-		lov_conf_freeze(lov);
-		switch (lov->lo_type) {
-		case LLT_RAID0: {
-			struct lov_stripe_md *lsm;
-			int i;
-
-			lsm = lov->lo_lsm;
-			LASSERT(lsm != NULL);
-			for (i = 0; i < lsm->lsm_stripe_count; i++) {
-				struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-
-				if (lov_oinfo_is_dummy(loi))
-					continue;
-
-				if (loi->loi_ar.ar_rc && !rc)
-					rc = loi->loi_ar.ar_rc;
-				loi->loi_ar.ar_rc = 0;
-			}
-		}
-		case LLT_RELEASED:
-		case LLT_EMPTY:
-			break;
-		default:
-			LBUG();
-		}
-		lov_conf_thaw(lov);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(lov_read_and_clear_async_rc);
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lov_offset.c b/drivers/staging/lustre/lustre/lov/lov_offset.c
deleted file mode 100644
index 9c8c77c05a8a..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_offset.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd_class.h"
-
-#include "lov_internal.h"
-
-/* compute object size given "stripeno" and the ost size */
-u64 lov_stripe_size(struct lov_stripe_md *lsm, u64 ost_size,
-			 int stripeno)
-{
-	unsigned long ssize = lsm->lsm_stripe_size;
-	unsigned long stripe_size;
-	u64 swidth;
-	u64 lov_size;
-	int magic = lsm->lsm_magic;
-
-	if (ost_size == 0)
-		return 0;
-
-	LASSERT(lsm_op_find(magic) != NULL);
-	lsm_op_find(magic)->lsm_stripe_by_index(lsm, &stripeno, NULL, &swidth);
-
-	/* lov_do_div64(a, b) returns a % b, and a = a / b */
-	stripe_size = lov_do_div64(ost_size, ssize);
-	if (stripe_size)
-		lov_size = ost_size * swidth + stripeno * ssize + stripe_size;
-	else
-		lov_size = (ost_size - 1) * swidth + (stripeno + 1) * ssize;
-
-	return lov_size;
-}
-
-/* we have an offset in file backed by an lov and want to find out where
- * that offset lands in our given stripe of the file.  for the easy
- * case where the offset is within the stripe, we just have to scale the
- * offset down to make it relative to the stripe instead of the lov.
- *
- * the harder case is what to do when the offset doesn't intersect the
- * stripe.  callers will want start offsets clamped ahead to the start
- * of the nearest stripe in the file.  end offsets similarly clamped to the
- * nearest ending byte of a stripe in the file:
- *
- * all this function does is move offsets to the nearest region of the
- * stripe, and it does its work "mod" the full length of all the stripes.
- * consider a file with 3 stripes:
- *
- *	     S					      E
- * ---------------------------------------------------------------------
- * |    0    |     1     |     2     |    0    |     1     |     2     |
- * ---------------------------------------------------------------------
- *
- * to find stripe 1's offsets for S and E, it divides by the full stripe
- * width and does its math in the context of a single set of stripes:
- *
- *	     S	 E
- * -----------------------------------
- * |    0    |     1     |     2     |
- * -----------------------------------
- *
- * it'll notice that E is outside stripe 1 and clamp it to the end of the
- * stripe, then multiply it back out by lov_off to give the real offsets in
- * the stripe:
- *
- *   S		   E
- * ---------------------------------------------------------------------
- * |    1    |     1     |     1     |    1    |     1     |     1     |
- * ---------------------------------------------------------------------
- *
- * it would have done similarly and pulled S forward to the start of a 1
- * stripe if, say, S had landed in a 0 stripe.
- *
- * this rounding isn't always correct.  consider an E lov offset that lands
- * on a 0 stripe, the "mod stripe width" math will pull it forward to the
- * start of a 1 stripe, when in fact it wanted to be rounded back to the end
- * of a previous 1 stripe.  this logic is handled by callers and this is why:
- *
- * this function returns < 0 when the offset was "before" the stripe and
- * was moved forward to the start of the stripe in question;  0 when it
- * falls in the stripe and no shifting was done; > 0 when the offset
- * was outside the stripe and was pulled back to its final byte. */
-int lov_stripe_offset(struct lov_stripe_md *lsm, u64 lov_off,
-		      int stripeno, u64 *obdoff)
-{
-	unsigned long ssize  = lsm->lsm_stripe_size;
-	u64 stripe_off, this_stripe, swidth;
-	int magic = lsm->lsm_magic;
-	int ret = 0;
-
-	if (lov_off == OBD_OBJECT_EOF) {
-		*obdoff = OBD_OBJECT_EOF;
-		return 0;
-	}
-
-	LASSERT(lsm_op_find(magic) != NULL);
-
-	lsm_op_find(magic)->lsm_stripe_by_index(lsm, &stripeno, &lov_off,
-						&swidth);
-
-	/* lov_do_div64(a, b) returns a % b, and a = a / b */
-	stripe_off = lov_do_div64(lov_off, swidth);
-
-	this_stripe = (u64)stripeno * ssize;
-	if (stripe_off < this_stripe) {
-		stripe_off = 0;
-		ret = -1;
-	} else {
-		stripe_off -= this_stripe;
-
-		if (stripe_off >= ssize) {
-			stripe_off = ssize;
-			ret = 1;
-		}
-	}
-
-	*obdoff = lov_off * ssize + stripe_off;
-	return ret;
-}
-
-/* Given a whole-file size and a stripe number, give the file size which
- * corresponds to the individual object of that stripe.
- *
- * This behaves basically in the same was as lov_stripe_offset, except that
- * file sizes falling before the beginning of a stripe are clamped to the end
- * of the previous stripe, not the beginning of the next:
- *
- *					       S
- * ---------------------------------------------------------------------
- * |    0    |     1     |     2     |    0    |     1     |     2     |
- * ---------------------------------------------------------------------
- *
- * if clamped to stripe 2 becomes:
- *
- *				   S
- * ---------------------------------------------------------------------
- * |    0    |     1     |     2     |    0    |     1     |     2     |
- * ---------------------------------------------------------------------
- */
-u64 lov_size_to_stripe(struct lov_stripe_md *lsm, u64 file_size,
-		       int stripeno)
-{
-	unsigned long ssize  = lsm->lsm_stripe_size;
-	u64 stripe_off, this_stripe, swidth;
-	int magic = lsm->lsm_magic;
-
-	if (file_size == OBD_OBJECT_EOF)
-		return OBD_OBJECT_EOF;
-
-	LASSERT(lsm_op_find(magic) != NULL);
-	lsm_op_find(magic)->lsm_stripe_by_index(lsm, &stripeno, &file_size,
-						&swidth);
-
-	/* lov_do_div64(a, b) returns a % b, and a = a / b */
-	stripe_off = lov_do_div64(file_size, swidth);
-
-	this_stripe = (u64)stripeno * ssize;
-	if (stripe_off < this_stripe) {
-		/* Move to end of previous stripe, or zero */
-		if (file_size > 0) {
-			file_size--;
-			stripe_off = ssize;
-		} else {
-			stripe_off = 0;
-		}
-	} else {
-		stripe_off -= this_stripe;
-
-		if (stripe_off >= ssize) {
-			/* Clamp to end of this stripe */
-			stripe_off = ssize;
-		}
-	}
-
-	return (file_size * ssize + stripe_off);
-}
-
-/* given an extent in an lov and a stripe, calculate the extent of the stripe
- * that is contained within the lov extent.  this returns true if the given
- * stripe does intersect with the lov extent. */
-int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno,
-			  u64 start, u64 end, u64 *obd_start, u64 *obd_end)
-{
-	int start_side, end_side;
-
-	start_side = lov_stripe_offset(lsm, start, stripeno, obd_start);
-	end_side = lov_stripe_offset(lsm, end, stripeno, obd_end);
-
-	CDEBUG(D_INODE, "[%llu->%llu] -> [(%d) %llu->%llu (%d)]\n",
-	       start, end, start_side, *obd_start, *obd_end, end_side);
-
-	/* this stripe doesn't intersect the file extent when neither
-	 * start or the end intersected the stripe and obd_start and
-	 * obd_end got rounded up to the save value. */
-	if (start_side != 0 && end_side != 0 && *obd_start == *obd_end)
-		return 0;
-
-	/* as mentioned in the lov_stripe_offset commentary, end
-	 * might have been shifted in the wrong direction.  This
-	 * happens when an end offset is before the stripe when viewed
-	 * through the "mod stripe size" math. we detect it being shifted
-	 * in the wrong direction and touch it up.
-	 * interestingly, this can't underflow since end must be > start
-	 * if we passed through the previous check.
-	 * (should we assert for that somewhere?) */
-	if (end_side != 0)
-		(*obd_end)--;
-
-	return 1;
-}
-
-/* compute which stripe number "lov_off" will be written into */
-int lov_stripe_number(struct lov_stripe_md *lsm, u64 lov_off)
-{
-	unsigned long ssize  = lsm->lsm_stripe_size;
-	u64 stripe_off, swidth;
-	int magic = lsm->lsm_magic;
-
-	LASSERT(lsm_op_find(magic) != NULL);
-	lsm_op_find(magic)->lsm_stripe_by_offset(lsm, NULL, &lov_off, &swidth);
-
-	stripe_off = lov_do_div64(lov_off, swidth);
-
-	/* Puts stripe_off/ssize result into stripe_off */
-	lov_do_div64(stripe_off, ssize);
-
-	return stripe_off;
-}
diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
deleted file mode 100644
index 6b1c135c9ab0..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ /dev/null
@@ -1,512 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lov/lov_pack.c
- *
- * (Un)packing of OST/MDS requests
- *
- * Author: Andreas Dilger <adilger@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "../include/lustre_net.h"
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/lustre/lustre_user.h"
-
-#include "lov_internal.h"
-
-void lov_dump_lmm_common(int level, void *lmmp)
-{
-	struct lov_mds_md *lmm = lmmp;
-	struct ost_id	oi;
-
-	lmm_oi_le_to_cpu(&oi, &lmm->lmm_oi);
-	CDEBUG(level, "objid "DOSTID", magic 0x%08x, pattern %#x\n",
-	       POSTID(&oi), le32_to_cpu(lmm->lmm_magic),
-	       le32_to_cpu(lmm->lmm_pattern));
-	CDEBUG(level, "stripe_size %u, stripe_count %u, layout_gen %u\n",
-	       le32_to_cpu(lmm->lmm_stripe_size),
-	       le16_to_cpu(lmm->lmm_stripe_count),
-	       le16_to_cpu(lmm->lmm_layout_gen));
-}
-
-static void lov_dump_lmm_objects(int level, struct lov_ost_data *lod,
-				 int stripe_count)
-{
-	int i;
-
-	if (stripe_count > LOV_V1_INSANE_STRIPE_COUNT) {
-		CDEBUG(level, "bad stripe_count %u > max_stripe_count %u\n",
-		       stripe_count, LOV_V1_INSANE_STRIPE_COUNT);
-		return;
-	}
-
-	for (i = 0; i < stripe_count; ++i, ++lod) {
-		struct ost_id	oi;
-
-		ostid_le_to_cpu(&lod->l_ost_oi, &oi);
-		CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n", i,
-		       le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
-	}
-}
-
-void lov_dump_lmm_v1(int level, struct lov_mds_md_v1 *lmm)
-{
-	lov_dump_lmm_common(level, lmm);
-	lov_dump_lmm_objects(level, lmm->lmm_objects,
-			     le16_to_cpu(lmm->lmm_stripe_count));
-}
-
-void lov_dump_lmm_v3(int level, struct lov_mds_md_v3 *lmm)
-{
-	lov_dump_lmm_common(level, lmm);
-	CDEBUG(level, "pool_name "LOV_POOLNAMEF"\n", lmm->lmm_pool_name);
-	lov_dump_lmm_objects(level, lmm->lmm_objects,
-			     le16_to_cpu(lmm->lmm_stripe_count));
-}
-
-void lov_dump_lmm(int level, void *lmm)
-{
-	int magic;
-
-	magic = le32_to_cpu(((struct lov_mds_md *)lmm)->lmm_magic);
-	switch (magic) {
-	case LOV_MAGIC_V1:
-		lov_dump_lmm_v1(level, (struct lov_mds_md_v1 *)lmm);
-		break;
-	case LOV_MAGIC_V3:
-		lov_dump_lmm_v3(level, (struct lov_mds_md_v3 *)lmm);
-		break;
-	default:
-		CDEBUG(level, "unrecognized lmm_magic %x, assuming %x\n",
-		       magic, LOV_MAGIC_V1);
-		lov_dump_lmm_common(level, lmm);
-		break;
-	}
-}
-
-/* Pack LOV object metadata for disk storage.  It is packed in LE byte
- * order and is opaque to the networking layer.
- *
- * XXX In the future, this will be enhanced to get the EA size from the
- *     underlying OSC device(s) to get their EA sizes so we can stack
- *     LOVs properly.  For now lov_mds_md_size() just assumes one u64
- *     per stripe.
- */
-int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
-	       struct lov_stripe_md *lsm)
-{
-	struct obd_device *obd = class_exp2obd(exp);
-	struct lov_obd *lov = &obd->u.lov;
-	struct lov_mds_md_v1 *lmmv1;
-	struct lov_mds_md_v3 *lmmv3;
-	__u16 stripe_count;
-	struct lov_ost_data_v1 *lmm_objects;
-	int lmm_size, lmm_magic;
-	int i;
-	int cplen = 0;
-
-	if (lsm) {
-		lmm_magic = lsm->lsm_magic;
-	} else {
-		if (lmmp && *lmmp)
-			lmm_magic = le32_to_cpu((*lmmp)->lmm_magic);
-		else
-			/* lsm == NULL and lmmp == NULL */
-			lmm_magic = LOV_MAGIC;
-	}
-
-	if ((lmm_magic != LOV_MAGIC_V1) &&
-	    (lmm_magic != LOV_MAGIC_V3)) {
-		CERROR("bad mem LOV MAGIC: 0x%08X != 0x%08X nor 0x%08X\n",
-			lmm_magic, LOV_MAGIC_V1, LOV_MAGIC_V3);
-		return -EINVAL;
-
-	}
-
-	if (lsm) {
-		/* If we are just sizing the EA, limit the stripe count
-		 * to the actual number of OSTs in this filesystem. */
-		if (!lmmp) {
-			stripe_count = lov_get_stripecnt(lov, lmm_magic,
-							lsm->lsm_stripe_count);
-			lsm->lsm_stripe_count = stripe_count;
-		} else if (!lsm_is_released(lsm)) {
-			stripe_count = lsm->lsm_stripe_count;
-		} else {
-			stripe_count = 0;
-		}
-	} else {
-		/* No need to allocate more than maximum supported stripes.
-		 * Anyway, this is pretty inaccurate since ld_tgt_count now
-		 * represents max index and we should rely on the actual number
-		 * of OSTs instead */
-		stripe_count = lov_mds_md_max_stripe_count(
-			lov->lov_ocd.ocd_max_easize, lmm_magic);
-
-		if (stripe_count > lov->desc.ld_tgt_count)
-			stripe_count = lov->desc.ld_tgt_count;
-	}
-
-	/* XXX LOV STACKING call into osc for sizes */
-	lmm_size = lov_mds_md_size(stripe_count, lmm_magic);
-
-	if (!lmmp)
-		return lmm_size;
-
-	if (*lmmp && !lsm) {
-		stripe_count = le16_to_cpu((*lmmp)->lmm_stripe_count);
-		lmm_size = lov_mds_md_size(stripe_count, lmm_magic);
-		kvfree(*lmmp);
-		*lmmp = NULL;
-		return 0;
-	}
-
-	if (!*lmmp) {
-		*lmmp = libcfs_kvzalloc(lmm_size, GFP_NOFS);
-		if (!*lmmp)
-			return -ENOMEM;
-	}
-
-	CDEBUG(D_INFO, "lov_packmd: LOV_MAGIC 0x%08X, lmm_size = %d \n",
-	       lmm_magic, lmm_size);
-
-	lmmv1 = *lmmp;
-	lmmv3 = (struct lov_mds_md_v3 *)*lmmp;
-	if (lmm_magic == LOV_MAGIC_V3)
-		lmmv3->lmm_magic = cpu_to_le32(LOV_MAGIC_V3);
-	else
-		lmmv1->lmm_magic = cpu_to_le32(LOV_MAGIC_V1);
-
-	if (!lsm)
-		return lmm_size;
-
-	/* lmmv1 and lmmv3 point to the same struct and have the
-	 * same first fields
-	 */
-	lmm_oi_cpu_to_le(&lmmv1->lmm_oi, &lsm->lsm_oi);
-	lmmv1->lmm_stripe_size = cpu_to_le32(lsm->lsm_stripe_size);
-	lmmv1->lmm_stripe_count = cpu_to_le16(stripe_count);
-	lmmv1->lmm_pattern = cpu_to_le32(lsm->lsm_pattern);
-	lmmv1->lmm_layout_gen = cpu_to_le16(lsm->lsm_layout_gen);
-	if (lsm->lsm_magic == LOV_MAGIC_V3) {
-		cplen = strlcpy(lmmv3->lmm_pool_name, lsm->lsm_pool_name,
-				sizeof(lmmv3->lmm_pool_name));
-		if (cplen >= sizeof(lmmv3->lmm_pool_name))
-			return -E2BIG;
-		lmm_objects = lmmv3->lmm_objects;
-	} else {
-		lmm_objects = lmmv1->lmm_objects;
-	}
-
-	for (i = 0; i < stripe_count; i++) {
-		struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-		/* XXX LOV STACKING call down to osc_packmd() to do packing */
-		LASSERTF(ostid_id(&loi->loi_oi) != 0, "lmm_oi "DOSTID
-			 " stripe %u/%u idx %u\n", POSTID(&lmmv1->lmm_oi),
-			 i, stripe_count, loi->loi_ost_idx);
-		ostid_cpu_to_le(&loi->loi_oi, &lmm_objects[i].l_ost_oi);
-		lmm_objects[i].l_ost_gen = cpu_to_le32(loi->loi_ost_gen);
-		lmm_objects[i].l_ost_idx = cpu_to_le32(loi->loi_ost_idx);
-	}
-
-	return lmm_size;
-}
-
-/* Find the max stripecount we should use */
-__u16 lov_get_stripecnt(struct lov_obd *lov, __u32 magic, __u16 stripe_count)
-{
-	__u32 max_stripes = LOV_MAX_STRIPE_COUNT_OLD;
-
-	if (!stripe_count)
-		stripe_count = lov->desc.ld_default_stripe_count;
-	if (stripe_count > lov->desc.ld_active_tgt_count)
-		stripe_count = lov->desc.ld_active_tgt_count;
-	if (!stripe_count)
-		stripe_count = 1;
-
-	/* stripe count is based on whether ldiskfs can handle
-	 * larger EA sizes */
-	if (lov->lov_ocd.ocd_connect_flags & OBD_CONNECT_MAX_EASIZE &&
-	    lov->lov_ocd.ocd_max_easize)
-		max_stripes = lov_mds_md_max_stripe_count(
-			lov->lov_ocd.ocd_max_easize, magic);
-
-	if (stripe_count > max_stripes)
-		stripe_count = max_stripes;
-
-	return stripe_count;
-}
-
-
-static int lov_verify_lmm(void *lmm, int lmm_bytes, __u16 *stripe_count)
-{
-	int rc;
-
-	if (lsm_op_find(le32_to_cpu(*(__u32 *)lmm)) == NULL) {
-		char *buffer;
-		int sz;
-
-		CERROR("bad disk LOV MAGIC: 0x%08X; dumping LMM (size=%d):\n",
-		       le32_to_cpu(*(__u32 *)lmm), lmm_bytes);
-		sz = lmm_bytes * 2 + 1;
-		buffer = libcfs_kvzalloc(sz, GFP_NOFS);
-		if (buffer != NULL) {
-			int i;
-
-			for (i = 0; i < lmm_bytes; i++)
-				sprintf(buffer+2*i, "%.2X", ((char *)lmm)[i]);
-			buffer[sz - 1] = '\0';
-			CERROR("%s\n", buffer);
-			kvfree(buffer);
-		}
-		return -EINVAL;
-	}
-	rc = lsm_op_find(le32_to_cpu(*(__u32 *)lmm))->lsm_lmm_verify(lmm,
-				     lmm_bytes, stripe_count);
-	return rc;
-}
-
-int lov_alloc_memmd(struct lov_stripe_md **lsmp, __u16 stripe_count,
-		    int pattern, int magic)
-{
-	int i, lsm_size;
-
-	CDEBUG(D_INFO, "alloc lsm, stripe_count %d\n", stripe_count);
-
-	*lsmp = lsm_alloc_plain(stripe_count, &lsm_size);
-	if (!*lsmp) {
-		CERROR("can't allocate lsmp stripe_count %d\n", stripe_count);
-		return -ENOMEM;
-	}
-
-	atomic_set(&(*lsmp)->lsm_refc, 1);
-	spin_lock_init(&(*lsmp)->lsm_lock);
-	(*lsmp)->lsm_magic = magic;
-	(*lsmp)->lsm_stripe_count = stripe_count;
-	(*lsmp)->lsm_maxbytes = LUSTRE_STRIPE_MAXBYTES * stripe_count;
-	(*lsmp)->lsm_pattern = pattern;
-	(*lsmp)->lsm_pool_name[0] = '\0';
-	(*lsmp)->lsm_layout_gen = 0;
-	if (stripe_count > 0)
-		(*lsmp)->lsm_oinfo[0]->loi_ost_idx = ~0;
-
-	for (i = 0; i < stripe_count; i++)
-		loi_init((*lsmp)->lsm_oinfo[i]);
-
-	return lsm_size;
-}
-
-int lov_free_memmd(struct lov_stripe_md **lsmp)
-{
-	struct lov_stripe_md *lsm = *lsmp;
-	int refc;
-
-	*lsmp = NULL;
-	LASSERT(atomic_read(&lsm->lsm_refc) > 0);
-	refc = atomic_dec_return(&lsm->lsm_refc);
-	if (refc == 0) {
-		LASSERT(lsm_op_find(lsm->lsm_magic) != NULL);
-		lsm_op_find(lsm->lsm_magic)->lsm_free(lsm);
-	}
-	return refc;
-}
-
-
-/* Unpack LOV object metadata from disk storage.  It is packed in LE byte
- * order and is opaque to the networking layer.
- */
-int lov_unpackmd(struct obd_export *exp,  struct lov_stripe_md **lsmp,
-		 struct lov_mds_md *lmm, int lmm_bytes)
-{
-	struct obd_device *obd = class_exp2obd(exp);
-	struct lov_obd *lov = &obd->u.lov;
-	int rc = 0, lsm_size;
-	__u16 stripe_count;
-	__u32 magic;
-	__u32 pattern;
-
-	/* If passed an MDS struct use values from there, otherwise defaults */
-	if (lmm) {
-		rc = lov_verify_lmm(lmm, lmm_bytes, &stripe_count);
-		if (rc)
-			return rc;
-		magic = le32_to_cpu(lmm->lmm_magic);
-		pattern = le32_to_cpu(lmm->lmm_pattern);
-	} else {
-		magic = LOV_MAGIC;
-		stripe_count = lov_get_stripecnt(lov, magic, 0);
-		pattern = LOV_PATTERN_RAID0;
-	}
-
-	/* If we aren't passed an lsmp struct, we just want the size */
-	if (!lsmp) {
-		/* XXX LOV STACKING call into osc for sizes */
-		LBUG();
-		return lov_stripe_md_size(stripe_count);
-	}
-	/* If we are passed an allocated struct but nothing to unpack, free */
-	if (*lsmp && !lmm) {
-		lov_free_memmd(lsmp);
-		return 0;
-	}
-
-	lsm_size = lov_alloc_memmd(lsmp, stripe_count, pattern, magic);
-	if (lsm_size < 0)
-		return lsm_size;
-
-	/* If we are passed a pointer but nothing to unpack, we only alloc */
-	if (!lmm)
-		return lsm_size;
-
-	LASSERT(lsm_op_find(magic) != NULL);
-	rc = lsm_op_find(magic)->lsm_unpackmd(lov, *lsmp, lmm);
-	if (rc) {
-		lov_free_memmd(lsmp);
-		return rc;
-	}
-
-	return lsm_size;
-}
-
-/* Retrieve object striping information.
- *
- * @lump is a pointer to an in-core struct with lmm_ost_count indicating
- * the maximum number of OST indices which will fit in the user buffer.
- * lmm_magic must be LOV_USER_MAGIC.
- */
-int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm,
-		  struct lov_user_md *lump)
-{
-	/*
-	 * XXX huge struct allocated on stack.
-	 */
-	/* we use lov_user_md_v3 because it is larger than lov_user_md_v1 */
-	struct lov_user_md_v3 lum;
-	struct lov_mds_md *lmmk = NULL;
-	int rc, lmm_size;
-	int lum_size;
-	mm_segment_t seg;
-
-	if (!lsm)
-		return -ENODATA;
-
-	/*
-	 * "Switch to kernel segment" to allow copying from kernel space by
-	 * copy_{to,from}_user().
-	 */
-	seg = get_fs();
-	set_fs(KERNEL_DS);
-
-	/* we only need the header part from user space to get lmm_magic and
-	 * lmm_stripe_count, (the header part is common to v1 and v3) */
-	lum_size = sizeof(struct lov_user_md_v1);
-	if (copy_from_user(&lum, lump, lum_size)) {
-		rc = -EFAULT;
-		goto out_set;
-	} else if ((lum.lmm_magic != LOV_USER_MAGIC) &&
-		 (lum.lmm_magic != LOV_USER_MAGIC_V3)) {
-		rc = -EINVAL;
-		goto out_set;
-	}
-
-	if (lum.lmm_stripe_count &&
-	    (lum.lmm_stripe_count < lsm->lsm_stripe_count)) {
-		/* Return right size of stripe to user */
-		lum.lmm_stripe_count = lsm->lsm_stripe_count;
-		rc = copy_to_user(lump, &lum, lum_size);
-		rc = -EOVERFLOW;
-		goto out_set;
-	}
-	rc = lov_packmd(exp, &lmmk, lsm);
-	if (rc < 0)
-		goto out_set;
-	lmm_size = rc;
-	rc = 0;
-
-	/* FIXME: Bug 1185 - copy fields properly when structs change */
-	/* struct lov_user_md_v3 and struct lov_mds_md_v3 must be the same */
-	CLASSERT(sizeof(lum) == sizeof(struct lov_mds_md_v3));
-	CLASSERT(sizeof(lum.lmm_objects[0]) == sizeof(lmmk->lmm_objects[0]));
-
-	if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
-	    ((lmmk->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) ||
-	    (lmmk->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)))) {
-		lustre_swab_lov_mds_md(lmmk);
-		lustre_swab_lov_user_md_objects(
-				(struct lov_user_ost_data *)lmmk->lmm_objects,
-				lmmk->lmm_stripe_count);
-	}
-	if (lum.lmm_magic == LOV_USER_MAGIC) {
-		/* User request for v1, we need skip lmm_pool_name */
-		if (lmmk->lmm_magic == LOV_MAGIC_V3) {
-			memmove((char *)(&lmmk->lmm_stripe_count) +
-				sizeof(lmmk->lmm_stripe_count),
-				((struct lov_mds_md_v3 *)lmmk)->lmm_objects,
-				lmmk->lmm_stripe_count *
-				sizeof(struct lov_ost_data_v1));
-			lmm_size -= LOV_MAXPOOLNAME;
-		}
-	} else {
-		/* if v3 we just have to update the lum_size */
-		lum_size = sizeof(struct lov_user_md_v3);
-	}
-
-	/* User wasn't expecting this many OST entries */
-	if (lum.lmm_stripe_count == 0)
-		lmm_size = lum_size;
-	else if (lum.lmm_stripe_count < lmmk->lmm_stripe_count) {
-		rc = -EOVERFLOW;
-		goto out_set;
-	}
-	/*
-	 * Have a difference between lov_mds_md & lov_user_md.
-	 * So we have to re-order the data before copy to user.
-	 */
-	lum.lmm_stripe_count = lmmk->lmm_stripe_count;
-	lum.lmm_layout_gen = lmmk->lmm_layout_gen;
-	((struct lov_user_md *)lmmk)->lmm_layout_gen = lum.lmm_layout_gen;
-	((struct lov_user_md *)lmmk)->lmm_stripe_count = lum.lmm_stripe_count;
-	if (copy_to_user(lump, lmmk, lmm_size))
-		rc = -EFAULT;
-
-	obd_free_diskmd(exp, &lmmk);
-out_set:
-	set_fs(seg);
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c
deleted file mode 100644
index c4596e8e5783..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_page.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_page for LOV layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-/*****************************************************************************
- *
- * Lov page operations.
- *
- */
-
-static int lov_page_invariant(const struct cl_page_slice *slice)
-{
-	const struct cl_page  *page = slice->cpl_page;
-	const struct cl_page  *sub  = lov_sub_page(slice);
-
-	return ergo(sub != NULL,
-		    page->cp_child == sub &&
-		    sub->cp_parent == page &&
-		    page->cp_state == sub->cp_state);
-}
-
-static void lov_page_fini(const struct lu_env *env,
-			  struct cl_page_slice *slice)
-{
-	struct cl_page  *sub = lov_sub_page(slice);
-
-	LINVRNT(lov_page_invariant(slice));
-
-	if (sub != NULL) {
-		LASSERT(sub->cp_state == CPS_FREEING);
-		lu_ref_del(&sub->cp_reference, "lov", sub->cp_parent);
-		sub->cp_parent = NULL;
-		slice->cpl_page->cp_child = NULL;
-		cl_page_put(env, sub);
-	}
-}
-
-static int lov_page_own(const struct lu_env *env,
-			const struct cl_page_slice *slice, struct cl_io *io,
-			int nonblock)
-{
-	struct lov_io     *lio = lov_env_io(env);
-	struct lov_io_sub *sub;
-
-	LINVRNT(lov_page_invariant(slice));
-	LINVRNT(!cl2lov_page(slice)->lps_invalid);
-
-	sub = lov_page_subio(env, lio, slice);
-	if (!IS_ERR(sub)) {
-		lov_sub_page(slice)->cp_owner = sub->sub_io;
-		lov_sub_put(sub);
-	} else
-		LBUG(); /* Arrgh */
-	return 0;
-}
-
-static void lov_page_assume(const struct lu_env *env,
-			    const struct cl_page_slice *slice, struct cl_io *io)
-{
-	lov_page_own(env, slice, io, 0);
-}
-
-static int lov_page_cache_add(const struct lu_env *env,
-			      const struct cl_page_slice *slice,
-			      struct cl_io *io)
-{
-	struct lov_io     *lio = lov_env_io(env);
-	struct lov_io_sub *sub;
-	int rc = 0;
-
-	LINVRNT(lov_page_invariant(slice));
-	LINVRNT(!cl2lov_page(slice)->lps_invalid);
-
-	sub = lov_page_subio(env, lio, slice);
-	if (!IS_ERR(sub)) {
-		rc = cl_page_cache_add(sub->sub_env, sub->sub_io,
-				       slice->cpl_page->cp_child, CRT_WRITE);
-		lov_sub_put(sub);
-	} else {
-		rc = PTR_ERR(sub);
-		CL_PAGE_DEBUG(D_ERROR, env, slice->cpl_page, "rc = %d\n", rc);
-	}
-	return rc;
-}
-
-static int lov_page_print(const struct lu_env *env,
-			  const struct cl_page_slice *slice,
-			  void *cookie, lu_printer_t printer)
-{
-	struct lov_page *lp = cl2lov_page(slice);
-
-	return (*printer)(env, cookie, LUSTRE_LOV_NAME"-page@%p\n", lp);
-}
-
-static const struct cl_page_operations lov_page_ops = {
-	.cpo_fini   = lov_page_fini,
-	.cpo_own    = lov_page_own,
-	.cpo_assume = lov_page_assume,
-	.io = {
-		[CRT_WRITE] = {
-			.cpo_cache_add = lov_page_cache_add
-		}
-	},
-	.cpo_print  = lov_page_print
-};
-
-static void lov_empty_page_fini(const struct lu_env *env,
-				struct cl_page_slice *slice)
-{
-	LASSERT(slice->cpl_page->cp_child == NULL);
-}
-
-int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj,
-			struct cl_page *page, struct page *vmpage)
-{
-	struct lov_object *loo = cl2lov(obj);
-	struct lov_layout_raid0 *r0 = lov_r0(loo);
-	struct lov_io     *lio = lov_env_io(env);
-	struct cl_page    *subpage;
-	struct cl_object  *subobj;
-	struct lov_io_sub *sub;
-	struct lov_page   *lpg = cl_object_page_slice(obj, page);
-	loff_t	     offset;
-	u64	    suboff;
-	int		stripe;
-	int		rc;
-
-	offset = cl_offset(obj, page->cp_index);
-	stripe = lov_stripe_number(loo->lo_lsm, offset);
-	LASSERT(stripe < r0->lo_nr);
-	rc = lov_stripe_offset(loo->lo_lsm, offset, stripe,
-				   &suboff);
-	LASSERT(rc == 0);
-
-	lpg->lps_invalid = 1;
-	cl_page_slice_add(page, &lpg->lps_cl, obj, &lov_page_ops);
-
-	sub = lov_sub_get(env, lio, stripe);
-	if (IS_ERR(sub)) {
-		rc = PTR_ERR(sub);
-		goto out;
-	}
-
-	subobj = lovsub2cl(r0->lo_sub[stripe]);
-	subpage = cl_page_find_sub(sub->sub_env, subobj,
-				   cl_index(subobj, suboff), vmpage, page);
-	lov_sub_put(sub);
-	if (IS_ERR(subpage)) {
-		rc = PTR_ERR(subpage);
-		goto out;
-	}
-
-	if (likely(subpage->cp_parent == page)) {
-		lu_ref_add(&subpage->cp_reference, "lov", page);
-		lpg->lps_invalid = 0;
-		rc = 0;
-	} else {
-		CL_PAGE_DEBUG(D_ERROR, env, page, "parent page\n");
-		CL_PAGE_DEBUG(D_ERROR, env, subpage, "child page\n");
-		LASSERT(0);
-	}
-
-out:
-	return rc;
-}
-
-
-static const struct cl_page_operations lov_empty_page_ops = {
-	.cpo_fini   = lov_empty_page_fini,
-	.cpo_print  = lov_page_print
-};
-
-int lov_page_init_empty(const struct lu_env *env, struct cl_object *obj,
-			struct cl_page *page, struct page *vmpage)
-{
-	struct lov_page *lpg = cl_object_page_slice(obj, page);
-	void *addr;
-
-	cl_page_slice_add(page, &lpg->lps_cl, obj, &lov_empty_page_ops);
-	addr = kmap(vmpage);
-	memset(addr, 0, cl_page_size(obj));
-	kunmap(vmpage);
-	cl_page_export(env, page, 1);
-	return 0;
-}
-
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c
deleted file mode 100644
index c59b1402616e..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_pool.c
+++ /dev/null
@@ -1,672 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/lov/lov_pool.c
- *
- * OST pool methods
- *
- * Author: Jacques-Charles LAFOUCRIERE <jc.lafoucriere@cea.fr>
- * Author: Alex Lyashkov <Alexey.Lyashkov@Sun.COM>
- * Author: Nathaniel Rutman <Nathan.Rutman@Sun.COM>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd.h"
-#include "lov_internal.h"
-
-#define pool_tgt(_p, _i) \
-		_p->pool_lobd->u.lov.lov_tgts[_p->pool_obds.op_array[_i]]
-
-static void lov_pool_getref(struct pool_desc *pool)
-{
-	CDEBUG(D_INFO, "pool %p\n", pool);
-	atomic_inc(&pool->pool_refcount);
-}
-
-void lov_pool_putref(struct pool_desc *pool)
-{
-	CDEBUG(D_INFO, "pool %p\n", pool);
-	if (atomic_dec_and_test(&pool->pool_refcount)) {
-		LASSERT(hlist_unhashed(&pool->pool_hash));
-		LASSERT(list_empty(&pool->pool_list));
-		LASSERT(pool->pool_debugfs_entry == NULL);
-		lov_ost_pool_free(&(pool->pool_rr.lqr_pool));
-		lov_ost_pool_free(&(pool->pool_obds));
-		kfree(pool);
-	}
-}
-
-static void lov_pool_putref_locked(struct pool_desc *pool)
-{
-	CDEBUG(D_INFO, "pool %p\n", pool);
-	LASSERT(atomic_read(&pool->pool_refcount) > 1);
-
-	atomic_dec(&pool->pool_refcount);
-}
-
-/*
- * hash function using a Rotating Hash algorithm
- * Knuth, D. The Art of Computer Programming,
- * Volume 3: Sorting and Searching,
- * Chapter 6.4.
- * Addison Wesley, 1973
- */
-static __u32 pool_hashfn(struct cfs_hash *hash_body, const void *key, unsigned mask)
-{
-	int i;
-	__u32 result;
-	char *poolname;
-
-	result = 0;
-	poolname = (char *)key;
-	for (i = 0; i < LOV_MAXPOOLNAME; i++) {
-		if (poolname[i] == '\0')
-			break;
-		result = (result << 4)^(result >> 28) ^  poolname[i];
-	}
-	return (result % mask);
-}
-
-static void *pool_key(struct hlist_node *hnode)
-{
-	struct pool_desc *pool;
-
-	pool = hlist_entry(hnode, struct pool_desc, pool_hash);
-	return pool->pool_name;
-}
-
-static int pool_hashkey_keycmp(const void *key, struct hlist_node *compared_hnode)
-{
-	char *pool_name;
-	struct pool_desc *pool;
-
-	pool_name = (char *)key;
-	pool = hlist_entry(compared_hnode, struct pool_desc, pool_hash);
-	return !strncmp(pool_name, pool->pool_name, LOV_MAXPOOLNAME);
-}
-
-static void *pool_hashobject(struct hlist_node *hnode)
-{
-	return hlist_entry(hnode, struct pool_desc, pool_hash);
-}
-
-static void pool_hashrefcount_get(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct pool_desc *pool;
-
-	pool = hlist_entry(hnode, struct pool_desc, pool_hash);
-	lov_pool_getref(pool);
-}
-
-static void pool_hashrefcount_put_locked(struct cfs_hash *hs,
-					 struct hlist_node *hnode)
-{
-	struct pool_desc *pool;
-
-	pool = hlist_entry(hnode, struct pool_desc, pool_hash);
-	lov_pool_putref_locked(pool);
-}
-
-cfs_hash_ops_t pool_hash_operations = {
-	.hs_hash	= pool_hashfn,
-	.hs_key	 = pool_key,
-	.hs_keycmp      = pool_hashkey_keycmp,
-	.hs_object      = pool_hashobject,
-	.hs_get	 = pool_hashrefcount_get,
-	.hs_put_locked  = pool_hashrefcount_put_locked,
-
-};
-
-/* ifdef needed for liblustre support */
-/*
- * pool /proc seq_file methods
- */
-/*
- * iterator is used to go through the target pool entries
- * index is the current entry index in the lp_array[] array
- * index >= pos returned to the seq_file interface
- * pos is from 0 to (pool->pool_obds.op_count - 1)
- */
-#define POOL_IT_MAGIC 0xB001CEA0
-struct pool_iterator {
-	int magic;
-	struct pool_desc *pool;
-	int idx;	/* from 0 to pool_tgt_size - 1 */
-};
-
-static void *pool_proc_next(struct seq_file *s, void *v, loff_t *pos)
-{
-	struct pool_iterator *iter = (struct pool_iterator *)s->private;
-	int prev_idx;
-
-	LASSERTF(iter->magic == POOL_IT_MAGIC, "%08X", iter->magic);
-
-	/* test if end of file */
-	if (*pos >= pool_tgt_count(iter->pool))
-		return NULL;
-
-	/* iterate to find a non empty entry */
-	prev_idx = iter->idx;
-	down_read(&pool_tgt_rw_sem(iter->pool));
-	iter->idx++;
-	if (iter->idx == pool_tgt_count(iter->pool)) {
-		iter->idx = prev_idx; /* we stay on the last entry */
-		up_read(&pool_tgt_rw_sem(iter->pool));
-		return NULL;
-	}
-	up_read(&pool_tgt_rw_sem(iter->pool));
-	(*pos)++;
-	/* return != NULL to continue */
-	return iter;
-}
-
-static void *pool_proc_start(struct seq_file *s, loff_t *pos)
-{
-	struct pool_desc *pool = (struct pool_desc *)s->private;
-	struct pool_iterator *iter;
-
-	lov_pool_getref(pool);
-	if ((pool_tgt_count(pool) == 0) ||
-	    (*pos >= pool_tgt_count(pool))) {
-		/* iter is not created, so stop() has no way to
-		 * find pool to dec ref */
-		lov_pool_putref(pool);
-		return NULL;
-	}
-
-	iter = kzalloc(sizeof(*iter), GFP_NOFS);
-	if (!iter)
-		return ERR_PTR(-ENOMEM);
-	iter->magic = POOL_IT_MAGIC;
-	iter->pool = pool;
-	iter->idx = 0;
-
-	/* we use seq_file private field to memorized iterator so
-	 * we can free it at stop() */
-	/* /!\ do not forget to restore it to pool before freeing it */
-	s->private = iter;
-	if (*pos > 0) {
-		loff_t i;
-		void *ptr;
-
-		i = 0;
-		do {
-		     ptr = pool_proc_next(s, &iter, &i);
-		} while ((i < *pos) && (ptr != NULL));
-		return ptr;
-	}
-	return iter;
-}
-
-static void pool_proc_stop(struct seq_file *s, void *v)
-{
-	struct pool_iterator *iter = (struct pool_iterator *)s->private;
-
-	/* in some cases stop() method is called 2 times, without
-	 * calling start() method (see seq_read() from fs/seq_file.c)
-	 * we have to free only if s->private is an iterator */
-	if ((iter) && (iter->magic == POOL_IT_MAGIC)) {
-		/* we restore s->private so next call to pool_proc_start()
-		 * will work */
-		s->private = iter->pool;
-		lov_pool_putref(iter->pool);
-		kfree(iter);
-	}
-	return;
-}
-
-static int pool_proc_show(struct seq_file *s, void *v)
-{
-	struct pool_iterator *iter = (struct pool_iterator *)v;
-	struct lov_tgt_desc *tgt;
-
-	LASSERTF(iter->magic == POOL_IT_MAGIC, "%08X", iter->magic);
-	LASSERT(iter->pool != NULL);
-	LASSERT(iter->idx <= pool_tgt_count(iter->pool));
-
-	down_read(&pool_tgt_rw_sem(iter->pool));
-	tgt = pool_tgt(iter->pool, iter->idx);
-	up_read(&pool_tgt_rw_sem(iter->pool));
-	if (tgt)
-		seq_printf(s, "%s\n", obd_uuid2str(&(tgt->ltd_uuid)));
-
-	return 0;
-}
-
-static const struct seq_operations pool_proc_ops = {
-	.start	  = pool_proc_start,
-	.next	   = pool_proc_next,
-	.stop	   = pool_proc_stop,
-	.show	   = pool_proc_show,
-};
-
-static int pool_proc_open(struct inode *inode, struct file *file)
-{
-	int rc;
-
-	rc = seq_open(file, &pool_proc_ops);
-	if (!rc) {
-		struct seq_file *s = file->private_data;
-		s->private = inode->i_private;
-	}
-	return rc;
-}
-
-static struct file_operations pool_proc_operations = {
-	.open	   = pool_proc_open,
-	.read	   = seq_read,
-	.llseek	 = seq_lseek,
-	.release	= seq_release,
-};
-
-void lov_dump_pool(int level, struct pool_desc *pool)
-{
-	int i;
-
-	lov_pool_getref(pool);
-
-	CDEBUG(level, "pool "LOV_POOLNAMEF" has %d members\n",
-	       pool->pool_name, pool->pool_obds.op_count);
-	down_read(&pool_tgt_rw_sem(pool));
-
-	for (i = 0; i < pool_tgt_count(pool) ; i++) {
-		if (!pool_tgt(pool, i) || !(pool_tgt(pool, i))->ltd_exp)
-			continue;
-		CDEBUG(level, "pool "LOV_POOLNAMEF"[%d] = %s\n",
-		       pool->pool_name, i,
-		       obd_uuid2str(&((pool_tgt(pool, i))->ltd_uuid)));
-	}
-
-	up_read(&pool_tgt_rw_sem(pool));
-	lov_pool_putref(pool);
-}
-
-#define LOV_POOL_INIT_COUNT 2
-int lov_ost_pool_init(struct ost_pool *op, unsigned int count)
-{
-	if (count == 0)
-		count = LOV_POOL_INIT_COUNT;
-	op->op_array = NULL;
-	op->op_count = 0;
-	init_rwsem(&op->op_rw_sem);
-	op->op_size = count;
-	op->op_array = kcalloc(op->op_size, sizeof(op->op_array[0]), GFP_NOFS);
-	if (op->op_array == NULL) {
-		op->op_size = 0;
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-/* Caller must hold write op_rwlock */
-int lov_ost_pool_extend(struct ost_pool *op, unsigned int min_count)
-{
-	__u32 *new;
-	int new_size;
-
-	LASSERT(min_count != 0);
-
-	if (op->op_count < op->op_size)
-		return 0;
-
-	new_size = max(min_count, 2 * op->op_size);
-	new = kcalloc(new_size, sizeof(op->op_array[0]), GFP_NOFS);
-	if (new == NULL)
-		return -ENOMEM;
-
-	/* copy old array to new one */
-	memcpy(new, op->op_array, op->op_size * sizeof(op->op_array[0]));
-	kfree(op->op_array);
-	op->op_array = new;
-	op->op_size = new_size;
-	return 0;
-}
-
-int lov_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count)
-{
-	int rc = 0, i;
-
-	down_write(&op->op_rw_sem);
-
-	rc = lov_ost_pool_extend(op, min_count);
-	if (rc)
-		goto out;
-
-	/* search ost in pool array */
-	for (i = 0; i < op->op_count; i++) {
-		if (op->op_array[i] == idx) {
-			rc = -EEXIST;
-			goto out;
-		}
-	}
-	/* ost not found we add it */
-	op->op_array[op->op_count] = idx;
-	op->op_count++;
-out:
-	up_write(&op->op_rw_sem);
-	return rc;
-}
-
-int lov_ost_pool_remove(struct ost_pool *op, __u32 idx)
-{
-	int i;
-
-	down_write(&op->op_rw_sem);
-
-	for (i = 0; i < op->op_count; i++) {
-		if (op->op_array[i] == idx) {
-			memmove(&op->op_array[i], &op->op_array[i + 1],
-				(op->op_count - i - 1) * sizeof(op->op_array[0]));
-			op->op_count--;
-			up_write(&op->op_rw_sem);
-			return 0;
-		}
-	}
-
-	up_write(&op->op_rw_sem);
-	return -EINVAL;
-}
-
-int lov_ost_pool_free(struct ost_pool *op)
-{
-	if (op->op_size == 0)
-		return 0;
-
-	down_write(&op->op_rw_sem);
-
-	kfree(op->op_array);
-	op->op_array = NULL;
-	op->op_count = 0;
-	op->op_size = 0;
-
-	up_write(&op->op_rw_sem);
-	return 0;
-}
-
-
-int lov_pool_new(struct obd_device *obd, char *poolname)
-{
-	struct lov_obd *lov;
-	struct pool_desc *new_pool;
-	int rc;
-
-	lov = &(obd->u.lov);
-
-	if (strlen(poolname) > LOV_MAXPOOLNAME)
-		return -ENAMETOOLONG;
-
-	new_pool = kzalloc(sizeof(*new_pool), GFP_NOFS);
-	if (!new_pool)
-		return -ENOMEM;
-
-	strncpy(new_pool->pool_name, poolname, LOV_MAXPOOLNAME);
-	new_pool->pool_name[LOV_MAXPOOLNAME] = '\0';
-	new_pool->pool_lobd = obd;
-	/* ref count init to 1 because when created a pool is always used
-	 * up to deletion
-	 */
-	atomic_set(&new_pool->pool_refcount, 1);
-	rc = lov_ost_pool_init(&new_pool->pool_obds, 0);
-	if (rc)
-		goto out_err;
-
-	memset(&(new_pool->pool_rr), 0, sizeof(struct lov_qos_rr));
-	rc = lov_ost_pool_init(&new_pool->pool_rr.lqr_pool, 0);
-	if (rc)
-		goto out_free_pool_obds;
-
-	INIT_HLIST_NODE(&new_pool->pool_hash);
-
-	/* we need this assert seq_file is not implemented for liblustre */
-	/* get ref for /proc file */
-	lov_pool_getref(new_pool);
-	new_pool->pool_debugfs_entry = ldebugfs_add_simple(
-						lov->lov_pool_debugfs_entry,
-						poolname, new_pool,
-						&pool_proc_operations);
-	if (IS_ERR_OR_NULL(new_pool->pool_debugfs_entry)) {
-		CWARN("Cannot add debugfs pool entry "LOV_POOLNAMEF"\n",
-		      poolname);
-		new_pool->pool_debugfs_entry = NULL;
-		lov_pool_putref(new_pool);
-	}
-	CDEBUG(D_INFO, "pool %p - proc %p\n",
-		new_pool, new_pool->pool_debugfs_entry);
-
-	spin_lock(&obd->obd_dev_lock);
-	list_add_tail(&new_pool->pool_list, &lov->lov_pool_list);
-	lov->lov_pool_count++;
-	spin_unlock(&obd->obd_dev_lock);
-
-	/* add to find only when it fully ready  */
-	rc = cfs_hash_add_unique(lov->lov_pools_hash_body, poolname,
-				 &new_pool->pool_hash);
-	if (rc) {
-		rc = -EEXIST;
-		goto out_err;
-	}
-
-	CDEBUG(D_CONFIG, LOV_POOLNAMEF" is pool #%d\n",
-	       poolname, lov->lov_pool_count);
-
-	return 0;
-
-out_err:
-	spin_lock(&obd->obd_dev_lock);
-	list_del_init(&new_pool->pool_list);
-	lov->lov_pool_count--;
-	spin_unlock(&obd->obd_dev_lock);
-
-	ldebugfs_remove(&new_pool->pool_debugfs_entry);
-
-	lov_ost_pool_free(&new_pool->pool_rr.lqr_pool);
-out_free_pool_obds:
-	lov_ost_pool_free(&new_pool->pool_obds);
-	kfree(new_pool);
-	return rc;
-}
-
-int lov_pool_del(struct obd_device *obd, char *poolname)
-{
-	struct lov_obd *lov;
-	struct pool_desc *pool;
-
-	lov = &(obd->u.lov);
-
-	/* lookup and kill hash reference */
-	pool = cfs_hash_del_key(lov->lov_pools_hash_body, poolname);
-	if (pool == NULL)
-		return -ENOENT;
-
-	if (!IS_ERR_OR_NULL(pool->pool_debugfs_entry)) {
-		CDEBUG(D_INFO, "proc entry %p\n", pool->pool_debugfs_entry);
-		ldebugfs_remove(&pool->pool_debugfs_entry);
-		lov_pool_putref(pool);
-	}
-
-	spin_lock(&obd->obd_dev_lock);
-	list_del_init(&pool->pool_list);
-	lov->lov_pool_count--;
-	spin_unlock(&obd->obd_dev_lock);
-
-	/* release last reference */
-	lov_pool_putref(pool);
-
-	return 0;
-}
-
-
-int lov_pool_add(struct obd_device *obd, char *poolname, char *ostname)
-{
-	struct obd_uuid ost_uuid;
-	struct lov_obd *lov;
-	struct pool_desc *pool;
-	unsigned int lov_idx;
-	int rc;
-
-	lov = &(obd->u.lov);
-
-	pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname);
-	if (pool == NULL)
-		return -ENOENT;
-
-	obd_str2uuid(&ost_uuid, ostname);
-
-
-	/* search ost in lov array */
-	obd_getref(obd);
-	for (lov_idx = 0; lov_idx < lov->desc.ld_tgt_count; lov_idx++) {
-		if (!lov->lov_tgts[lov_idx])
-			continue;
-		if (obd_uuid_equals(&ost_uuid,
-				    &(lov->lov_tgts[lov_idx]->ltd_uuid)))
-			break;
-	}
-	/* test if ost found in lov */
-	if (lov_idx == lov->desc.ld_tgt_count) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	rc = lov_ost_pool_add(&pool->pool_obds, lov_idx, lov->lov_tgt_size);
-	if (rc)
-		goto out;
-
-	pool->pool_rr.lqr_dirty = 1;
-
-	CDEBUG(D_CONFIG, "Added %s to "LOV_POOLNAMEF" as member %d\n",
-	       ostname, poolname,  pool_tgt_count(pool));
-
-out:
-	obd_putref(obd);
-	lov_pool_putref(pool);
-	return rc;
-}
-
-int lov_pool_remove(struct obd_device *obd, char *poolname, char *ostname)
-{
-	struct obd_uuid ost_uuid;
-	struct lov_obd *lov;
-	struct pool_desc *pool;
-	unsigned int lov_idx;
-	int rc = 0;
-
-	lov = &(obd->u.lov);
-
-	pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname);
-	if (pool == NULL)
-		return -ENOENT;
-
-	obd_str2uuid(&ost_uuid, ostname);
-
-	obd_getref(obd);
-	/* search ost in lov array, to get index */
-	for (lov_idx = 0; lov_idx < lov->desc.ld_tgt_count; lov_idx++) {
-		if (!lov->lov_tgts[lov_idx])
-			continue;
-
-		if (obd_uuid_equals(&ost_uuid,
-				    &(lov->lov_tgts[lov_idx]->ltd_uuid)))
-			break;
-	}
-
-	/* test if ost found in lov */
-	if (lov_idx == lov->desc.ld_tgt_count) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	lov_ost_pool_remove(&pool->pool_obds, lov_idx);
-
-	pool->pool_rr.lqr_dirty = 1;
-
-	CDEBUG(D_CONFIG, "%s removed from "LOV_POOLNAMEF"\n", ostname,
-	       poolname);
-
-out:
-	obd_putref(obd);
-	lov_pool_putref(pool);
-	return rc;
-}
-
-int lov_check_index_in_pool(__u32 idx, struct pool_desc *pool)
-{
-	int i, rc;
-
-	/* caller may no have a ref on pool if it got the pool
-	 * without calling lov_find_pool() (e.g. go through the lov pool
-	 * list)
-	 */
-	lov_pool_getref(pool);
-
-	down_read(&pool_tgt_rw_sem(pool));
-
-	for (i = 0; i < pool_tgt_count(pool); i++) {
-		if (pool_tgt_array(pool)[i] == idx) {
-			rc = 0;
-			goto out;
-		}
-	}
-	rc = -ENOENT;
-out:
-	up_read(&pool_tgt_rw_sem(pool));
-
-	lov_pool_putref(pool);
-	return rc;
-}
-
-struct pool_desc *lov_find_pool(struct lov_obd *lov, char *poolname)
-{
-	struct pool_desc *pool;
-
-	pool = NULL;
-	if (poolname[0] != '\0') {
-		pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname);
-		if (pool == NULL)
-			CWARN("Request for an unknown pool ("LOV_POOLNAMEF")\n",
-			      poolname);
-		if ((pool != NULL) && (pool_tgt_count(pool) == 0)) {
-			CWARN("Request for an empty pool ("LOV_POOLNAMEF")\n",
-			       poolname);
-			/* pool is ignored, so we remove ref on it */
-			lov_pool_putref(pool);
-			pool = NULL;
-		}
-	}
-	return pool;
-}
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
deleted file mode 100644
index 416e42ed7792..000000000000
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ /dev/null
@@ -1,761 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd_class.h"
-#include "../include/lustre/lustre_idl.h"
-#include "lov_internal.h"
-
-static void lov_init_set(struct lov_request_set *set)
-{
-	set->set_count = 0;
-	atomic_set(&set->set_completes, 0);
-	atomic_set(&set->set_success, 0);
-	atomic_set(&set->set_finish_checked, 0);
-	set->set_cookies = NULL;
-	INIT_LIST_HEAD(&set->set_list);
-	atomic_set(&set->set_refcount, 1);
-	init_waitqueue_head(&set->set_waitq);
-	spin_lock_init(&set->set_lock);
-}
-
-void lov_finish_set(struct lov_request_set *set)
-{
-	struct list_head *pos, *n;
-
-	LASSERT(set);
-	list_for_each_safe(pos, n, &set->set_list) {
-		struct lov_request *req = list_entry(pos,
-							 struct lov_request,
-							 rq_link);
-		list_del_init(&req->rq_link);
-
-		if (req->rq_oi.oi_oa)
-			OBDO_FREE(req->rq_oi.oi_oa);
-		kfree(req->rq_oi.oi_osfs);
-		kfree(req);
-	}
-	kfree(set);
-}
-
-int lov_set_finished(struct lov_request_set *set, int idempotent)
-{
-	int completes = atomic_read(&set->set_completes);
-
-	CDEBUG(D_INFO, "check set %d/%d\n", completes, set->set_count);
-
-	if (completes == set->set_count) {
-		if (idempotent)
-			return 1;
-		if (atomic_inc_return(&set->set_finish_checked) == 1)
-			return 1;
-	}
-	return 0;
-}
-
-void lov_update_set(struct lov_request_set *set,
-		    struct lov_request *req, int rc)
-{
-	req->rq_complete = 1;
-	req->rq_rc = rc;
-
-	atomic_inc(&set->set_completes);
-	if (rc == 0)
-		atomic_inc(&set->set_success);
-
-	wake_up(&set->set_waitq);
-}
-
-int lov_update_common_set(struct lov_request_set *set,
-			  struct lov_request *req, int rc)
-{
-	struct lov_obd *lov = &set->set_exp->exp_obd->u.lov;
-
-	lov_update_set(set, req, rc);
-
-	/* grace error on inactive ost */
-	if (rc && !(lov->lov_tgts[req->rq_idx] &&
-		    lov->lov_tgts[req->rq_idx]->ltd_active))
-		rc = 0;
-
-	/* FIXME in raid1 regime, should return 0 */
-	return rc;
-}
-
-void lov_set_add_req(struct lov_request *req, struct lov_request_set *set)
-{
-	list_add_tail(&req->rq_link, &set->set_list);
-	set->set_count++;
-	req->rq_rqset = set;
-}
-
-static int lov_check_set(struct lov_obd *lov, int idx)
-{
-	int rc;
-	struct lov_tgt_desc *tgt;
-
-	mutex_lock(&lov->lov_lock);
-	tgt = lov->lov_tgts[idx];
-	rc = !tgt || tgt->ltd_active ||
-		(tgt->ltd_exp &&
-		 class_exp2cliimp(tgt->ltd_exp)->imp_connect_tried);
-	mutex_unlock(&lov->lov_lock);
-
-	return rc;
-}
-
-/* Check if the OSC connection exists and is active.
- * If the OSC has not yet had a chance to connect to the OST the first time,
- * wait once for it to connect instead of returning an error.
- */
-int lov_check_and_wait_active(struct lov_obd *lov, int ost_idx)
-{
-	wait_queue_head_t waitq;
-	struct l_wait_info lwi;
-	struct lov_tgt_desc *tgt;
-	int rc = 0;
-
-	mutex_lock(&lov->lov_lock);
-
-	tgt = lov->lov_tgts[ost_idx];
-
-	if (unlikely(tgt == NULL)) {
-		rc = 0;
-		goto out;
-	}
-
-	if (likely(tgt->ltd_active)) {
-		rc = 1;
-		goto out;
-	}
-
-	if (tgt->ltd_exp && class_exp2cliimp(tgt->ltd_exp)->imp_connect_tried) {
-		rc = 0;
-		goto out;
-	}
-
-	mutex_unlock(&lov->lov_lock);
-
-	init_waitqueue_head(&waitq);
-	lwi = LWI_TIMEOUT_INTERVAL(cfs_time_seconds(obd_timeout),
-				   cfs_time_seconds(1), NULL, NULL);
-
-	rc = l_wait_event(waitq, lov_check_set(lov, ost_idx), &lwi);
-	if (tgt != NULL && tgt->ltd_active)
-		return 1;
-
-	return 0;
-
-out:
-	mutex_unlock(&lov->lov_lock);
-	return rc;
-}
-
-static int common_attr_done(struct lov_request_set *set)
-{
-	struct list_head *pos;
-	struct lov_request *req;
-	struct obdo *tmp_oa;
-	int rc = 0, attrset = 0;
-
-	LASSERT(set->set_oi != NULL);
-
-	if (set->set_oi->oi_oa == NULL)
-		return 0;
-
-	if (!atomic_read(&set->set_success))
-		return -EIO;
-
-	OBDO_ALLOC(tmp_oa);
-	if (tmp_oa == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	list_for_each(pos, &set->set_list) {
-		req = list_entry(pos, struct lov_request, rq_link);
-
-		if (!req->rq_complete || req->rq_rc)
-			continue;
-		if (req->rq_oi.oi_oa->o_valid == 0)   /* inactive stripe */
-			continue;
-		lov_merge_attrs(tmp_oa, req->rq_oi.oi_oa,
-				req->rq_oi.oi_oa->o_valid,
-				set->set_oi->oi_md, req->rq_stripe, &attrset);
-	}
-	if (!attrset) {
-		CERROR("No stripes had valid attrs\n");
-		rc = -EIO;
-	}
-	if ((set->set_oi->oi_oa->o_valid & OBD_MD_FLEPOCH) &&
-	    (set->set_oi->oi_md->lsm_stripe_count != attrset)) {
-		/* When we take attributes of some epoch, we require all the
-		 * ost to be active. */
-		CERROR("Not all the stripes had valid attrs\n");
-		rc = -EIO;
-		goto out;
-	}
-
-	tmp_oa->o_oi = set->set_oi->oi_oa->o_oi;
-	memcpy(set->set_oi->oi_oa, tmp_oa, sizeof(*set->set_oi->oi_oa));
-out:
-	if (tmp_oa)
-		OBDO_FREE(tmp_oa);
-	return rc;
-
-}
-
-int lov_fini_getattr_set(struct lov_request_set *set)
-{
-	int rc = 0;
-
-	if (set == NULL)
-		return 0;
-	LASSERT(set->set_exp);
-	if (atomic_read(&set->set_completes))
-		rc = common_attr_done(set);
-
-	lov_put_reqset(set);
-
-	return rc;
-}
-
-/* The callback for osc_getattr_async that finalizes a request info when a
- * response is received. */
-static int cb_getattr_update(void *cookie, int rc)
-{
-	struct obd_info *oinfo = cookie;
-	struct lov_request *lovreq;
-
-	lovreq = container_of(oinfo, struct lov_request, rq_oi);
-	return lov_update_common_set(lovreq->rq_rqset, lovreq, rc);
-}
-
-int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo,
-			 struct lov_request_set **reqset)
-{
-	struct lov_request_set *set;
-	struct lov_obd *lov = &exp->exp_obd->u.lov;
-	int rc = 0, i;
-
-	set = kzalloc(sizeof(*set), GFP_NOFS);
-	if (!set)
-		return -ENOMEM;
-	lov_init_set(set);
-
-	set->set_exp = exp;
-	set->set_oi = oinfo;
-
-	for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
-		struct lov_oinfo *loi;
-		struct lov_request *req;
-
-		loi = oinfo->oi_md->lsm_oinfo[i];
-		if (lov_oinfo_is_dummy(loi))
-			continue;
-
-		if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
-			CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
-			if (oinfo->oi_oa->o_valid & OBD_MD_FLEPOCH) {
-				/* SOM requires all the OSTs to be active. */
-				rc = -EIO;
-				goto out_set;
-			}
-			continue;
-		}
-
-		req = kzalloc(sizeof(*req), GFP_NOFS);
-		if (!req) {
-			rc = -ENOMEM;
-			goto out_set;
-		}
-
-		req->rq_stripe = i;
-		req->rq_idx = loi->loi_ost_idx;
-
-		OBDO_ALLOC(req->rq_oi.oi_oa);
-		if (req->rq_oi.oi_oa == NULL) {
-			kfree(req);
-			rc = -ENOMEM;
-			goto out_set;
-		}
-		memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
-		       sizeof(*req->rq_oi.oi_oa));
-		req->rq_oi.oi_oa->o_oi = loi->loi_oi;
-		req->rq_oi.oi_cb_up = cb_getattr_update;
-		req->rq_oi.oi_capa = oinfo->oi_capa;
-
-		lov_set_add_req(req, set);
-	}
-	if (!set->set_count) {
-		rc = -EIO;
-		goto out_set;
-	}
-	*reqset = set;
-	return rc;
-out_set:
-	lov_fini_getattr_set(set);
-	return rc;
-}
-
-int lov_fini_destroy_set(struct lov_request_set *set)
-{
-	if (set == NULL)
-		return 0;
-	LASSERT(set->set_exp);
-	if (atomic_read(&set->set_completes)) {
-		/* FIXME update qos data here */
-	}
-
-	lov_put_reqset(set);
-
-	return 0;
-}
-
-int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo,
-			 struct obdo *src_oa, struct lov_stripe_md *lsm,
-			 struct obd_trans_info *oti,
-			 struct lov_request_set **reqset)
-{
-	struct lov_request_set *set;
-	struct lov_obd *lov = &exp->exp_obd->u.lov;
-	int rc = 0, i;
-
-	set = kzalloc(sizeof(*set), GFP_NOFS);
-	if (!set)
-		return -ENOMEM;
-	lov_init_set(set);
-
-	set->set_exp = exp;
-	set->set_oi = oinfo;
-	set->set_oi->oi_md = lsm;
-	set->set_oi->oi_oa = src_oa;
-	set->set_oti = oti;
-	if (oti != NULL && src_oa->o_valid & OBD_MD_FLCOOKIE)
-		set->set_cookies = oti->oti_logcookies;
-
-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		struct lov_oinfo *loi;
-		struct lov_request *req;
-
-		loi = lsm->lsm_oinfo[i];
-		if (lov_oinfo_is_dummy(loi))
-			continue;
-
-		if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
-			CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
-			continue;
-		}
-
-		req = kzalloc(sizeof(*req), GFP_NOFS);
-		if (!req) {
-			rc = -ENOMEM;
-			goto out_set;
-		}
-
-		req->rq_stripe = i;
-		req->rq_idx = loi->loi_ost_idx;
-
-		OBDO_ALLOC(req->rq_oi.oi_oa);
-		if (req->rq_oi.oi_oa == NULL) {
-			kfree(req);
-			rc = -ENOMEM;
-			goto out_set;
-		}
-		memcpy(req->rq_oi.oi_oa, src_oa, sizeof(*req->rq_oi.oi_oa));
-		req->rq_oi.oi_oa->o_oi = loi->loi_oi;
-		lov_set_add_req(req, set);
-	}
-	if (!set->set_count) {
-		rc = -EIO;
-		goto out_set;
-	}
-	*reqset = set;
-	return rc;
-out_set:
-	lov_fini_destroy_set(set);
-	return rc;
-}
-
-int lov_fini_setattr_set(struct lov_request_set *set)
-{
-	int rc = 0;
-
-	if (set == NULL)
-		return 0;
-	LASSERT(set->set_exp);
-	if (atomic_read(&set->set_completes)) {
-		rc = common_attr_done(set);
-		/* FIXME update qos data here */
-	}
-
-	lov_put_reqset(set);
-	return rc;
-}
-
-int lov_update_setattr_set(struct lov_request_set *set,
-			   struct lov_request *req, int rc)
-{
-	struct lov_obd *lov = &req->rq_rqset->set_exp->exp_obd->u.lov;
-	struct lov_stripe_md *lsm = req->rq_rqset->set_oi->oi_md;
-
-	lov_update_set(set, req, rc);
-
-	/* grace error on inactive ost */
-	if (rc && !(lov->lov_tgts[req->rq_idx] &&
-		    lov->lov_tgts[req->rq_idx]->ltd_active))
-		rc = 0;
-
-	if (rc == 0) {
-		if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLCTIME)
-			lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_ctime =
-				req->rq_oi.oi_oa->o_ctime;
-		if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLMTIME)
-			lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_mtime =
-				req->rq_oi.oi_oa->o_mtime;
-		if (req->rq_oi.oi_oa->o_valid & OBD_MD_FLATIME)
-			lsm->lsm_oinfo[req->rq_stripe]->loi_lvb.lvb_atime =
-				req->rq_oi.oi_oa->o_atime;
-	}
-
-	return rc;
-}
-
-/* The callback for osc_setattr_async that finalizes a request info when a
- * response is received. */
-static int cb_setattr_update(void *cookie, int rc)
-{
-	struct obd_info *oinfo = cookie;
-	struct lov_request *lovreq;
-
-	lovreq = container_of(oinfo, struct lov_request, rq_oi);
-	return lov_update_setattr_set(lovreq->rq_rqset, lovreq, rc);
-}
-
-int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo,
-			 struct obd_trans_info *oti,
-			 struct lov_request_set **reqset)
-{
-	struct lov_request_set *set;
-	struct lov_obd *lov = &exp->exp_obd->u.lov;
-	int rc = 0, i;
-
-	set = kzalloc(sizeof(*set), GFP_NOFS);
-	if (!set)
-		return -ENOMEM;
-	lov_init_set(set);
-
-	set->set_exp = exp;
-	set->set_oti = oti;
-	set->set_oi = oinfo;
-	if (oti != NULL && oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE)
-		set->set_cookies = oti->oti_logcookies;
-
-	for (i = 0; i < oinfo->oi_md->lsm_stripe_count; i++) {
-		struct lov_oinfo *loi = oinfo->oi_md->lsm_oinfo[i];
-		struct lov_request *req;
-
-		if (lov_oinfo_is_dummy(loi))
-			continue;
-
-		if (!lov_check_and_wait_active(lov, loi->loi_ost_idx)) {
-			CDEBUG(D_HA, "lov idx %d inactive\n", loi->loi_ost_idx);
-			continue;
-		}
-
-		req = kzalloc(sizeof(*req), GFP_NOFS);
-		if (!req) {
-			rc = -ENOMEM;
-			goto out_set;
-		}
-		req->rq_stripe = i;
-		req->rq_idx = loi->loi_ost_idx;
-
-		OBDO_ALLOC(req->rq_oi.oi_oa);
-		if (req->rq_oi.oi_oa == NULL) {
-			kfree(req);
-			rc = -ENOMEM;
-			goto out_set;
-		}
-		memcpy(req->rq_oi.oi_oa, oinfo->oi_oa,
-		       sizeof(*req->rq_oi.oi_oa));
-		req->rq_oi.oi_oa->o_oi = loi->loi_oi;
-		req->rq_oi.oi_oa->o_stripe_idx = i;
-		req->rq_oi.oi_cb_up = cb_setattr_update;
-		req->rq_oi.oi_capa = oinfo->oi_capa;
-
-		if (oinfo->oi_oa->o_valid & OBD_MD_FLSIZE) {
-			int off = lov_stripe_offset(oinfo->oi_md,
-						    oinfo->oi_oa->o_size, i,
-						    &req->rq_oi.oi_oa->o_size);
-
-			if (off < 0 && req->rq_oi.oi_oa->o_size)
-				req->rq_oi.oi_oa->o_size--;
-
-			CDEBUG(D_INODE, "stripe %d has size %llu/%llu\n",
-			       i, req->rq_oi.oi_oa->o_size,
-			       oinfo->oi_oa->o_size);
-		}
-		lov_set_add_req(req, set);
-	}
-	if (!set->set_count) {
-		rc = -EIO;
-		goto out_set;
-	}
-	*reqset = set;
-	return rc;
-out_set:
-	lov_fini_setattr_set(set);
-	return rc;
-}
-
-#define LOV_U64_MAX ((__u64)~0ULL)
-#define LOV_SUM_MAX(tot, add)					   \
-	do {							    \
-		if ((tot) + (add) < (tot))			      \
-			(tot) = LOV_U64_MAX;			    \
-		else						    \
-			(tot) += (add);				 \
-	} while (0)
-
-int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs,
-		    int success)
-{
-	if (success) {
-		__u32 expected_stripes = lov_get_stripecnt(&obd->u.lov,
-							   LOV_MAGIC, 0);
-		if (osfs->os_files != LOV_U64_MAX)
-			lov_do_div64(osfs->os_files, expected_stripes);
-		if (osfs->os_ffree != LOV_U64_MAX)
-			lov_do_div64(osfs->os_ffree, expected_stripes);
-
-		spin_lock(&obd->obd_osfs_lock);
-		memcpy(&obd->obd_osfs, osfs, sizeof(*osfs));
-		obd->obd_osfs_age = cfs_time_current_64();
-		spin_unlock(&obd->obd_osfs_lock);
-		return 0;
-	}
-
-	return -EIO;
-}
-
-int lov_fini_statfs_set(struct lov_request_set *set)
-{
-	int rc = 0;
-
-	if (set == NULL)
-		return 0;
-
-	if (atomic_read(&set->set_completes)) {
-		rc = lov_fini_statfs(set->set_obd, set->set_oi->oi_osfs,
-				     atomic_read(&set->set_success));
-	}
-	lov_put_reqset(set);
-	return rc;
-}
-
-void lov_update_statfs(struct obd_statfs *osfs, struct obd_statfs *lov_sfs,
-		       int success)
-{
-	int shift = 0, quit = 0;
-	__u64 tmp;
-
-	if (success == 0) {
-		memcpy(osfs, lov_sfs, sizeof(*lov_sfs));
-	} else {
-		if (osfs->os_bsize != lov_sfs->os_bsize) {
-			/* assume all block sizes are always powers of 2 */
-			/* get the bits difference */
-			tmp = osfs->os_bsize | lov_sfs->os_bsize;
-			for (shift = 0; shift <= 64; ++shift) {
-				if (tmp & 1) {
-					if (quit)
-						break;
-					quit = 1;
-					shift = 0;
-				}
-				tmp >>= 1;
-			}
-		}
-
-		if (osfs->os_bsize < lov_sfs->os_bsize) {
-			osfs->os_bsize = lov_sfs->os_bsize;
-
-			osfs->os_bfree  >>= shift;
-			osfs->os_bavail >>= shift;
-			osfs->os_blocks >>= shift;
-		} else if (shift != 0) {
-			lov_sfs->os_bfree  >>= shift;
-			lov_sfs->os_bavail >>= shift;
-			lov_sfs->os_blocks >>= shift;
-		}
-		osfs->os_bfree += lov_sfs->os_bfree;
-		osfs->os_bavail += lov_sfs->os_bavail;
-		osfs->os_blocks += lov_sfs->os_blocks;
-		/* XXX not sure about this one - depends on policy.
-		 *   - could be minimum if we always stripe on all OBDs
-		 *     (but that would be wrong for any other policy,
-		 *     if one of the OBDs has no more objects left)
-		 *   - could be sum if we stripe whole objects
-		 *   - could be average, just to give a nice number
-		 *
-		 * To give a "reasonable" (if not wholly accurate)
-		 * number, we divide the total number of free objects
-		 * by expected stripe count (watch out for overflow).
-		 */
-		LOV_SUM_MAX(osfs->os_files, lov_sfs->os_files);
-		LOV_SUM_MAX(osfs->os_ffree, lov_sfs->os_ffree);
-	}
-}
-
-/* The callback for osc_statfs_async that finalizes a request info when a
- * response is received. */
-static int cb_statfs_update(void *cookie, int rc)
-{
-	struct obd_info *oinfo = cookie;
-	struct lov_request *lovreq;
-	struct lov_request_set *set;
-	struct obd_statfs *osfs, *lov_sfs;
-	struct lov_obd *lov;
-	struct lov_tgt_desc *tgt;
-	struct obd_device *lovobd, *tgtobd;
-	int success;
-
-	lovreq = container_of(oinfo, struct lov_request, rq_oi);
-	set = lovreq->rq_rqset;
-	lovobd = set->set_obd;
-	lov = &lovobd->u.lov;
-	osfs = set->set_oi->oi_osfs;
-	lov_sfs = oinfo->oi_osfs;
-	success = atomic_read(&set->set_success);
-	/* XXX: the same is done in lov_update_common_set, however
-	   lovset->set_exp is not initialized. */
-	lov_update_set(set, lovreq, rc);
-	if (rc)
-		goto out;
-
-	obd_getref(lovobd);
-	tgt = lov->lov_tgts[lovreq->rq_idx];
-	if (!tgt || !tgt->ltd_active)
-		goto out_update;
-
-	tgtobd = class_exp2obd(tgt->ltd_exp);
-	spin_lock(&tgtobd->obd_osfs_lock);
-	memcpy(&tgtobd->obd_osfs, lov_sfs, sizeof(*lov_sfs));
-	if ((oinfo->oi_flags & OBD_STATFS_FROM_CACHE) == 0)
-		tgtobd->obd_osfs_age = cfs_time_current_64();
-	spin_unlock(&tgtobd->obd_osfs_lock);
-
-out_update:
-	lov_update_statfs(osfs, lov_sfs, success);
-	obd_putref(lovobd);
-
-out:
-	if (set->set_oi->oi_flags & OBD_STATFS_PTLRPCD &&
-	    lov_set_finished(set, 0)) {
-		lov_statfs_interpret(NULL, set, set->set_count !=
-				     atomic_read(&set->set_success));
-	}
-
-	return 0;
-}
-
-int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
-			struct lov_request_set **reqset)
-{
-	struct lov_request_set *set;
-	struct lov_obd *lov = &obd->u.lov;
-	int rc = 0, i;
-
-	set = kzalloc(sizeof(*set), GFP_NOFS);
-	if (!set)
-		return -ENOMEM;
-	lov_init_set(set);
-
-	set->set_obd = obd;
-	set->set_oi = oinfo;
-
-	/* We only get block data from the OBD */
-	for (i = 0; i < lov->desc.ld_tgt_count; i++) {
-		struct lov_request *req;
-
-		if (lov->lov_tgts[i] == NULL ||
-		    (!lov_check_and_wait_active(lov, i) &&
-		     (oinfo->oi_flags & OBD_STATFS_NODELAY))) {
-			CDEBUG(D_HA, "lov idx %d inactive\n", i);
-			continue;
-		}
-
-		/* skip targets that have been explicitly disabled by the
-		 * administrator */
-		if (!lov->lov_tgts[i]->ltd_exp) {
-			CDEBUG(D_HA, "lov idx %d administratively disabled\n", i);
-			continue;
-		}
-
-		req = kzalloc(sizeof(*req), GFP_NOFS);
-		if (!req) {
-			rc = -ENOMEM;
-			goto out_set;
-		}
-
-		req->rq_oi.oi_osfs = kzalloc(sizeof(*req->rq_oi.oi_osfs),
-					     GFP_NOFS);
-		if (!req->rq_oi.oi_osfs) {
-			kfree(req);
-			rc = -ENOMEM;
-			goto out_set;
-		}
-
-		req->rq_idx = i;
-		req->rq_oi.oi_cb_up = cb_statfs_update;
-		req->rq_oi.oi_flags = oinfo->oi_flags;
-
-		lov_set_add_req(req, set);
-	}
-	if (!set->set_count) {
-		rc = -EIO;
-		goto out_set;
-	}
-	*reqset = set;
-	return rc;
-out_set:
-	lov_fini_statfs_set(set);
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_dev.c b/drivers/staging/lustre/lustre/lov/lovsub_dev.c
deleted file mode 100644
index 90d9ec386a1a..000000000000
--- a/drivers/staging/lustre/lustre/lov/lovsub_dev.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_device and cl_device_type for LOVSUB layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-/*****************************************************************************
- *
- * Lovsub transfer operations.
- *
- */
-
-static void lovsub_req_completion(const struct lu_env *env,
-				  const struct cl_req_slice *slice, int ioret)
-{
-	struct lovsub_req *lsr;
-
-	lsr = cl2lovsub_req(slice);
-	OBD_SLAB_FREE_PTR(lsr, lovsub_req_kmem);
-}
-
-/**
- * Implementation of struct cl_req_operations::cro_attr_set() for lovsub
- * layer. Lov and lovsub are responsible only for struct obdo::o_stripe_idx
- * field, which is filled there.
- */
-static void lovsub_req_attr_set(const struct lu_env *env,
-				const struct cl_req_slice *slice,
-				const struct cl_object *obj,
-				struct cl_req_attr *attr, u64 flags)
-{
-	struct lovsub_object *subobj;
-
-	subobj = cl2lovsub(obj);
-	/*
-	 * There is no OBD_MD_* flag for obdo::o_stripe_idx, so set it
-	 * unconditionally. It never changes anyway.
-	 */
-	attr->cra_oa->o_stripe_idx = subobj->lso_index;
-}
-
-static const struct cl_req_operations lovsub_req_ops = {
-	.cro_attr_set   = lovsub_req_attr_set,
-	.cro_completion = lovsub_req_completion
-};
-
-/*****************************************************************************
- *
- * Lov-sub device and device type functions.
- *
- */
-
-static int lovsub_device_init(const struct lu_env *env, struct lu_device *d,
-			      const char *name, struct lu_device *next)
-{
-	struct lovsub_device  *lsd = lu2lovsub_dev(d);
-	struct lu_device_type *ldt;
-	int rc;
-
-	next->ld_site = d->ld_site;
-	ldt = next->ld_type;
-	LASSERT(ldt != NULL);
-	rc = ldt->ldt_ops->ldto_device_init(env, next, ldt->ldt_name, NULL);
-	if (rc) {
-		next->ld_site = NULL;
-		return rc;
-	}
-
-	lu_device_get(next);
-	lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init);
-	lsd->acid_next = lu2cl_dev(next);
-	return rc;
-}
-
-static struct lu_device *lovsub_device_fini(const struct lu_env *env,
-					    struct lu_device *d)
-{
-	struct lu_device *next;
-	struct lovsub_device *lsd;
-
-	lsd = lu2lovsub_dev(d);
-	next = cl2lu_dev(lsd->acid_next);
-	lsd->acid_super = NULL;
-	lsd->acid_next = NULL;
-	return next;
-}
-
-static struct lu_device *lovsub_device_free(const struct lu_env *env,
-					    struct lu_device *d)
-{
-	struct lovsub_device *lsd  = lu2lovsub_dev(d);
-	struct lu_device     *next = cl2lu_dev(lsd->acid_next);
-
-	if (atomic_read(&d->ld_ref) && d->ld_site) {
-		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
-		lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
-	}
-	cl_device_fini(lu2cl_dev(d));
-	kfree(lsd);
-	return next;
-}
-
-static int lovsub_req_init(const struct lu_env *env, struct cl_device *dev,
-			   struct cl_req *req)
-{
-	struct lovsub_req *lsr;
-	int result;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lsr, lovsub_req_kmem, GFP_NOFS);
-	if (lsr != NULL) {
-		cl_req_slice_add(req, &lsr->lsrq_cl, dev, &lovsub_req_ops);
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-static const struct lu_device_operations lovsub_lu_ops = {
-	.ldo_object_alloc      = lovsub_object_alloc,
-	.ldo_process_config    = NULL,
-	.ldo_recovery_complete = NULL
-};
-
-static const struct cl_device_operations lovsub_cl_ops = {
-	.cdo_req_init = lovsub_req_init
-};
-
-static struct lu_device *lovsub_device_alloc(const struct lu_env *env,
-					     struct lu_device_type *t,
-					     struct lustre_cfg *cfg)
-{
-	struct lu_device     *d;
-	struct lovsub_device *lsd;
-
-	lsd = kzalloc(sizeof(*lsd), GFP_NOFS);
-	if (lsd != NULL) {
-		int result;
-
-		result = cl_device_init(&lsd->acid_cl, t);
-		if (result == 0) {
-			d = lovsub2lu_dev(lsd);
-			d->ld_ops	 = &lovsub_lu_ops;
-			lsd->acid_cl.cd_ops = &lovsub_cl_ops;
-		} else
-			d = ERR_PTR(result);
-	} else
-		d = ERR_PTR(-ENOMEM);
-	return d;
-}
-
-static const struct lu_device_type_operations lovsub_device_type_ops = {
-	.ldto_device_alloc = lovsub_device_alloc,
-	.ldto_device_free  = lovsub_device_free,
-
-	.ldto_device_init    = lovsub_device_init,
-	.ldto_device_fini    = lovsub_device_fini
-};
-
-#define LUSTRE_LOVSUB_NAME	 "lovsub"
-
-struct lu_device_type lovsub_device_type = {
-	.ldt_tags     = LU_DEVICE_CL,
-	.ldt_name     = LUSTRE_LOVSUB_NAME,
-	.ldt_ops      = &lovsub_device_type_ops,
-	.ldt_ctx_tags = LCT_CL_THREAD
-};
-
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_io.c b/drivers/staging/lustre/lustre/lov/lovsub_io.c
deleted file mode 100644
index 783ec687a4e7..000000000000
--- a/drivers/staging/lustre/lustre/lov/lovsub_io.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_io for LOVSUB layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-/*****************************************************************************
- *
- * Lovsub io operations.
- *
- */
-
-/* All trivial */
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_lock.c b/drivers/staging/lustre/lustre/lov/lovsub_lock.c
deleted file mode 100644
index 62b696d25d81..000000000000
--- a/drivers/staging/lustre/lustre/lov/lovsub_lock.c
+++ /dev/null
@@ -1,466 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_lock for LOVSUB layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-/*****************************************************************************
- *
- * Lovsub lock operations.
- *
- */
-
-static void lovsub_lock_fini(const struct lu_env *env,
-			     struct cl_lock_slice *slice)
-{
-	struct lovsub_lock   *lsl;
-
-	lsl = cl2lovsub_lock(slice);
-	LASSERT(list_empty(&lsl->lss_parents));
-	OBD_SLAB_FREE_PTR(lsl, lovsub_lock_kmem);
-}
-
-static void lovsub_parent_lock(const struct lu_env *env, struct lov_lock *lov)
-{
-	struct cl_lock *parent;
-
-	parent = lov->lls_cl.cls_lock;
-	cl_lock_get(parent);
-	lu_ref_add(&parent->cll_reference, "lovsub-parent", current);
-	cl_lock_mutex_get(env, parent);
-}
-
-static void lovsub_parent_unlock(const struct lu_env *env, struct lov_lock *lov)
-{
-	struct cl_lock *parent;
-
-	parent = lov->lls_cl.cls_lock;
-	cl_lock_mutex_put(env, lov->lls_cl.cls_lock);
-	lu_ref_del(&parent->cll_reference, "lovsub-parent", current);
-	cl_lock_put(env, parent);
-}
-
-/**
- * Implements cl_lock_operations::clo_state() method for lovsub layer, which
- * method is called whenever sub-lock state changes. Propagates state change
- * to the top-locks.
- */
-static void lovsub_lock_state(const struct lu_env *env,
-			      const struct cl_lock_slice *slice,
-			      enum cl_lock_state state)
-{
-	struct lovsub_lock   *sub = cl2lovsub_lock(slice);
-	struct lov_lock_link *scan;
-
-	LASSERT(cl_lock_is_mutexed(slice->cls_lock));
-
-	list_for_each_entry(scan, &sub->lss_parents, lll_list) {
-		struct lov_lock *lov    = scan->lll_super;
-		struct cl_lock  *parent = lov->lls_cl.cls_lock;
-
-		if (sub->lss_active != parent) {
-			lovsub_parent_lock(env, lov);
-			cl_lock_signal(env, parent);
-			lovsub_parent_unlock(env, lov);
-		}
-	}
-}
-
-/**
- * Implementation of cl_lock_operation::clo_weigh() estimating lock weight by
- * asking parent lock.
- */
-static unsigned long lovsub_lock_weigh(const struct lu_env *env,
-				       const struct cl_lock_slice *slice)
-{
-	struct lovsub_lock *lock = cl2lovsub_lock(slice);
-	struct lov_lock    *lov;
-	unsigned long       dumbbell;
-
-	LASSERT(cl_lock_is_mutexed(slice->cls_lock));
-
-	if (!list_empty(&lock->lss_parents)) {
-		/*
-		 * It is not clear whether all parents have to be asked and
-		 * their estimations summed, or it is enough to ask one. For
-		 * the current usages, one is always enough.
-		 */
-		lov = container_of(lock->lss_parents.next,
-				   struct lov_lock_link, lll_list)->lll_super;
-
-		lovsub_parent_lock(env, lov);
-		dumbbell = cl_lock_weigh(env, lov->lls_cl.cls_lock);
-		lovsub_parent_unlock(env, lov);
-	} else
-		dumbbell = 0;
-
-	return dumbbell;
-}
-
-/**
- * Maps start/end offsets within a stripe, to offsets within a file.
- */
-static void lovsub_lock_descr_map(const struct cl_lock_descr *in,
-				  struct lov_object *lov,
-				  int stripe, struct cl_lock_descr *out)
-{
-	pgoff_t size; /* stripe size in pages */
-	pgoff_t skip; /* how many pages in every stripe are occupied by
-		       * "other" stripes */
-	pgoff_t start;
-	pgoff_t end;
-
-	start = in->cld_start;
-	end   = in->cld_end;
-
-	if (lov->lo_lsm->lsm_stripe_count > 1) {
-		size = cl_index(lov2cl(lov), lov->lo_lsm->lsm_stripe_size);
-		skip = (lov->lo_lsm->lsm_stripe_count - 1) * size;
-
-		/* XXX overflow check here? */
-		start += start/size * skip + stripe * size;
-
-		if (end != CL_PAGE_EOF) {
-			end += end/size * skip + stripe * size;
-			/*
-			 * And check for overflow...
-			 */
-			if (end < in->cld_end)
-				end = CL_PAGE_EOF;
-		}
-	}
-	out->cld_start = start;
-	out->cld_end   = end;
-}
-
-/**
- * Adjusts parent lock extent when a sub-lock is attached to a parent. This is
- * called in two ways:
- *
- *     - as part of receive call-back, when server returns granted extent to
- *       the client, and
- *
- *     - when top-lock finds existing sub-lock in the cache.
- *
- * Note, that lock mode is not propagated to the parent: i.e., if CLM_READ
- * top-lock matches CLM_WRITE sub-lock, top-lock is still CLM_READ.
- */
-int lov_sublock_modify(const struct lu_env *env, struct lov_lock *lov,
-		       struct lovsub_lock *sublock,
-		       const struct cl_lock_descr *d, int idx)
-{
-	struct cl_lock       *parent;
-	struct lovsub_object *subobj;
-	struct cl_lock_descr *pd;
-	struct cl_lock_descr *parent_descr;
-	int		   result;
-
-	parent       = lov->lls_cl.cls_lock;
-	parent_descr = &parent->cll_descr;
-	LASSERT(cl_lock_mode_match(d->cld_mode, parent_descr->cld_mode));
-
-	subobj = cl2lovsub(sublock->lss_cl.cls_obj);
-	pd     = &lov_env_info(env)->lti_ldescr;
-
-	pd->cld_obj  = parent_descr->cld_obj;
-	pd->cld_mode = parent_descr->cld_mode;
-	pd->cld_gid  = parent_descr->cld_gid;
-	lovsub_lock_descr_map(d, subobj->lso_super, subobj->lso_index, pd);
-	lov->lls_sub[idx].sub_got = *d;
-	/*
-	 * Notify top-lock about modification, if lock description changes
-	 * materially.
-	 */
-	if (!cl_lock_ext_match(parent_descr, pd))
-		result = cl_lock_modify(env, parent, pd);
-	else
-		result = 0;
-	return result;
-}
-
-static int lovsub_lock_modify(const struct lu_env *env,
-			      const struct cl_lock_slice *s,
-			      const struct cl_lock_descr *d)
-{
-	struct lovsub_lock   *lock   = cl2lovsub_lock(s);
-	struct lov_lock_link *scan;
-	struct lov_lock      *lov;
-	int result		   = 0;
-
-	LASSERT(cl_lock_mode_match(d->cld_mode,
-				   s->cls_lock->cll_descr.cld_mode));
-	list_for_each_entry(scan, &lock->lss_parents, lll_list) {
-		int rc;
-
-		lov = scan->lll_super;
-		lovsub_parent_lock(env, lov);
-		rc = lov_sublock_modify(env, lov, lock, d, scan->lll_idx);
-		lovsub_parent_unlock(env, lov);
-		result = result ?: rc;
-	}
-	return result;
-}
-
-static int lovsub_lock_closure(const struct lu_env *env,
-			       const struct cl_lock_slice *slice,
-			       struct cl_lock_closure *closure)
-{
-	struct lovsub_lock   *sub;
-	struct cl_lock       *parent;
-	struct lov_lock_link *scan;
-	int		   result;
-
-	LASSERT(cl_lock_is_mutexed(slice->cls_lock));
-
-	sub    = cl2lovsub_lock(slice);
-	result = 0;
-
-	list_for_each_entry(scan, &sub->lss_parents, lll_list) {
-		parent = scan->lll_super->lls_cl.cls_lock;
-		result = cl_lock_closure_build(env, parent, closure);
-		if (result != 0)
-			break;
-	}
-	return result;
-}
-
-/**
- * A helper function for lovsub_lock_delete() that deals with a given parent
- * top-lock.
- */
-static int lovsub_lock_delete_one(const struct lu_env *env,
-				  struct cl_lock *child, struct lov_lock *lov)
-{
-	struct cl_lock *parent;
-	int	     result;
-
-	parent = lov->lls_cl.cls_lock;
-	if (parent->cll_error)
-		return 0;
-
-	result = 0;
-	switch (parent->cll_state) {
-	case CLS_ENQUEUED:
-		/* See LU-1355 for the case that a glimpse lock is
-		 * interrupted by signal */
-		LASSERT(parent->cll_flags & CLF_CANCELLED);
-		break;
-	case CLS_QUEUING:
-	case CLS_FREEING:
-		cl_lock_signal(env, parent);
-		break;
-	case CLS_INTRANSIT:
-		/*
-		 * Here lies a problem: a sub-lock is canceled while top-lock
-		 * is being unlocked. Top-lock cannot be moved into CLS_NEW
-		 * state, because unlocking has to succeed eventually by
-		 * placing lock into CLS_CACHED (or failing it), see
-		 * cl_unuse_try(). Nor can top-lock be left in CLS_CACHED
-		 * state, because lov maintains an invariant that all
-		 * sub-locks exist in CLS_CACHED (this allows cached top-lock
-		 * to be reused immediately). Nor can we wait for top-lock
-		 * state to change, because this can be synchronous to the
-		 * current thread.
-		 *
-		 * We know for sure that lov_lock_unuse() will be called at
-		 * least one more time to finish un-using, so leave a mark on
-		 * the top-lock, that will be seen by the next call to
-		 * lov_lock_unuse().
-		 */
-		if (cl_lock_is_intransit(parent))
-			lov->lls_cancel_race = 1;
-		break;
-	case CLS_CACHED:
-		/*
-		 * if a sub-lock is canceled move its top-lock into CLS_NEW
-		 * state to preserve an invariant that a top-lock in
-		 * CLS_CACHED is immediately ready for re-use (i.e., has all
-		 * sub-locks), and so that next attempt to re-use the top-lock
-		 * enqueues missing sub-lock.
-		 */
-		cl_lock_state_set(env, parent, CLS_NEW);
-		/* fall through */
-	case CLS_NEW:
-		/*
-		 * if last sub-lock is canceled, destroy the top-lock (which
-		 * is now `empty') proactively.
-		 */
-		if (lov->lls_nr_filled == 0) {
-			/* ... but unfortunately, this cannot be done easily,
-			 * as cancellation of a top-lock might acquire mutices
-			 * of its other sub-locks, violating lock ordering,
-			 * see cl_lock_{cancel,delete}() preconditions.
-			 *
-			 * To work around this, the mutex of this sub-lock is
-			 * released, top-lock is destroyed, and sub-lock mutex
-			 * acquired again. The list of parents has to be
-			 * re-scanned from the beginning after this.
-			 *
-			 * Only do this if no mutices other than on @child and
-			 * @parent are held by the current thread.
-			 *
-			 * TODO: The lock modal here is too complex, because
-			 * the lock may be canceled and deleted by voluntarily:
-			 *    cl_lock_request
-			 *      -> osc_lock_enqueue_wait
-			 *	-> osc_lock_cancel_wait
-			 *	  -> cl_lock_delete
-			 *	    -> lovsub_lock_delete
-			 *	      -> cl_lock_cancel/delete
-			 *		-> ...
-			 *
-			 * The better choice is to spawn a kernel thread for
-			 * this purpose. -jay
-			 */
-			if (cl_lock_nr_mutexed(env) == 2) {
-				cl_lock_mutex_put(env, child);
-				cl_lock_cancel(env, parent);
-				cl_lock_delete(env, parent);
-				result = 1;
-			}
-		}
-		break;
-	case CLS_HELD:
-		CL_LOCK_DEBUG(D_ERROR, env, parent, "Delete CLS_HELD lock\n");
-	default:
-		CERROR("Impossible state: %d\n", parent->cll_state);
-		LBUG();
-		break;
-	}
-
-	return result;
-}
-
-/**
- * An implementation of cl_lock_operations::clo_delete() method. This is
- * invoked in "bottom-to-top" delete, when lock destruction starts from the
- * sub-lock (e.g, as a result of ldlm lock LRU policy).
- */
-static void lovsub_lock_delete(const struct lu_env *env,
-			       const struct cl_lock_slice *slice)
-{
-	struct cl_lock     *child = slice->cls_lock;
-	struct lovsub_lock *sub   = cl2lovsub_lock(slice);
-	int restart;
-
-	LASSERT(cl_lock_is_mutexed(child));
-
-	/*
-	 * Destruction of a sub-lock might take multiple iterations, because
-	 * when the last sub-lock of a given top-lock is deleted, top-lock is
-	 * canceled proactively, and this requires to release sub-lock
-	 * mutex. Once sub-lock mutex has been released, list of its parents
-	 * has to be re-scanned from the beginning.
-	 */
-	do {
-		struct lov_lock      *lov;
-		struct lov_lock_link *scan;
-		struct lov_lock_link *temp;
-		struct lov_lock_sub  *subdata;
-
-		restart = 0;
-		list_for_each_entry_safe(scan, temp,
-					     &sub->lss_parents, lll_list) {
-			lov     = scan->lll_super;
-			subdata = &lov->lls_sub[scan->lll_idx];
-			lovsub_parent_lock(env, lov);
-			subdata->sub_got = subdata->sub_descr;
-			lov_lock_unlink(env, scan, sub);
-			restart = lovsub_lock_delete_one(env, child, lov);
-			lovsub_parent_unlock(env, lov);
-
-			if (restart) {
-				cl_lock_mutex_get(env, child);
-				break;
-			}
-	       }
-	} while (restart);
-}
-
-static int lovsub_lock_print(const struct lu_env *env, void *cookie,
-			     lu_printer_t p, const struct cl_lock_slice *slice)
-{
-	struct lovsub_lock   *sub = cl2lovsub_lock(slice);
-	struct lov_lock      *lov;
-	struct lov_lock_link *scan;
-
-	list_for_each_entry(scan, &sub->lss_parents, lll_list) {
-		lov = scan->lll_super;
-		(*p)(env, cookie, "[%d %p ", scan->lll_idx, lov);
-		if (lov != NULL)
-			cl_lock_descr_print(env, cookie, p,
-					    &lov->lls_cl.cls_lock->cll_descr);
-		(*p)(env, cookie, "] ");
-	}
-	return 0;
-}
-
-static const struct cl_lock_operations lovsub_lock_ops = {
-	.clo_fini    = lovsub_lock_fini,
-	.clo_state   = lovsub_lock_state,
-	.clo_delete  = lovsub_lock_delete,
-	.clo_modify  = lovsub_lock_modify,
-	.clo_closure = lovsub_lock_closure,
-	.clo_weigh   = lovsub_lock_weigh,
-	.clo_print   = lovsub_lock_print
-};
-
-int lovsub_lock_init(const struct lu_env *env, struct cl_object *obj,
-		     struct cl_lock *lock, const struct cl_io *io)
-{
-	struct lovsub_lock *lsk;
-	int result;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lsk, lovsub_lock_kmem, GFP_NOFS);
-	if (lsk != NULL) {
-		INIT_LIST_HEAD(&lsk->lss_parents);
-		cl_lock_slice_add(lock, &lsk->lss_cl, obj, &lovsub_lock_ops);
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_object.c b/drivers/staging/lustre/lustre/lov/lovsub_object.c
deleted file mode 100644
index 57e3629fccee..000000000000
--- a/drivers/staging/lustre/lustre/lov/lovsub_object.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_object for LOVSUB layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-/*****************************************************************************
- *
- * Lovsub object operations.
- *
- */
-
-int lovsub_object_init(const struct lu_env *env, struct lu_object *obj,
-		       const struct lu_object_conf *conf)
-{
-	struct lovsub_device  *dev   = lu2lovsub_dev(obj->lo_dev);
-	struct lu_object      *below;
-	struct lu_device      *under;
-
-	int result;
-
-	under = &dev->acid_next->cd_lu_dev;
-	below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under);
-	if (below != NULL) {
-		lu_object_add(obj, below);
-		cl_object_page_init(lu2cl(obj), sizeof(struct lovsub_page));
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-
-}
-
-static void lovsub_object_free(const struct lu_env *env, struct lu_object *obj)
-{
-	struct lovsub_object *los = lu2lovsub(obj);
-	struct lov_object    *lov = los->lso_super;
-
-	/* We can't assume lov was assigned here, because of the shadow
-	 * object handling in lu_object_find.
-	 */
-	if (lov) {
-		LASSERT(lov->lo_type == LLT_RAID0);
-		LASSERT(lov->u.raid0.lo_sub[los->lso_index] == los);
-		spin_lock(&lov->u.raid0.lo_sub_lock);
-		lov->u.raid0.lo_sub[los->lso_index] = NULL;
-		spin_unlock(&lov->u.raid0.lo_sub_lock);
-	}
-
-	lu_object_fini(obj);
-	lu_object_header_fini(&los->lso_header.coh_lu);
-	OBD_SLAB_FREE_PTR(los, lovsub_object_kmem);
-}
-
-static int lovsub_object_print(const struct lu_env *env, void *cookie,
-			       lu_printer_t p, const struct lu_object *obj)
-{
-	struct lovsub_object *los = lu2lovsub(obj);
-
-	return (*p)(env, cookie, "[%d]", los->lso_index);
-}
-
-static int lovsub_attr_set(const struct lu_env *env, struct cl_object *obj,
-			   const struct cl_attr *attr, unsigned valid)
-{
-	struct lov_object *lov = cl2lovsub(obj)->lso_super;
-
-	lov_r0(lov)->lo_attr_valid = 0;
-	return 0;
-}
-
-static int lovsub_object_glimpse(const struct lu_env *env,
-				 const struct cl_object *obj,
-				 struct ost_lvb *lvb)
-{
-	struct lovsub_object *los = cl2lovsub(obj);
-
-	return cl_object_glimpse(env, &los->lso_super->lo_cl, lvb);
-}
-
-
-
-static const struct cl_object_operations lovsub_ops = {
-	.coo_page_init = lovsub_page_init,
-	.coo_lock_init = lovsub_lock_init,
-	.coo_attr_set  = lovsub_attr_set,
-	.coo_glimpse   = lovsub_object_glimpse
-};
-
-static const struct lu_object_operations lovsub_lu_obj_ops = {
-	.loo_object_init      = lovsub_object_init,
-	.loo_object_delete    = NULL,
-	.loo_object_release   = NULL,
-	.loo_object_free      = lovsub_object_free,
-	.loo_object_print     = lovsub_object_print,
-	.loo_object_invariant = NULL
-};
-
-struct lu_object *lovsub_object_alloc(const struct lu_env *env,
-				      const struct lu_object_header *unused,
-				      struct lu_device *dev)
-{
-	struct lovsub_object *los;
-	struct lu_object     *obj;
-
-	OBD_SLAB_ALLOC_PTR_GFP(los, lovsub_object_kmem, GFP_NOFS);
-	if (los != NULL) {
-		struct cl_object_header *hdr;
-
-		obj = lovsub2lu(los);
-		hdr = &los->lso_header;
-		cl_object_header_init(hdr);
-		lu_object_init(obj, &hdr->coh_lu, dev);
-		lu_object_add_top(&hdr->coh_lu, obj);
-		los->lso_cl.co_ops = &lovsub_ops;
-		obj->lo_ops = &lovsub_lu_obj_ops;
-	} else
-		obj = NULL;
-	return obj;
-}
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_page.c b/drivers/staging/lustre/lustre/lov/lovsub_page.c
deleted file mode 100644
index 3f00ce9677b7..000000000000
--- a/drivers/staging/lustre/lustre/lov/lovsub_page.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_page for LOVSUB layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOV
-
-#include "lov_cl_internal.h"
-
-/** \addtogroup lov
- *  @{
- */
-
-/*****************************************************************************
- *
- * Lovsub page operations.
- *
- */
-
-static void lovsub_page_fini(const struct lu_env *env,
-			     struct cl_page_slice *slice)
-{
-}
-
-static const struct cl_page_operations lovsub_page_ops = {
-	.cpo_fini   = lovsub_page_fini
-};
-
-int lovsub_page_init(const struct lu_env *env, struct cl_object *obj,
-			struct cl_page *page, struct page *unused)
-{
-	struct lovsub_page *lsb = cl_object_page_slice(obj, page);
-
-	cl_page_slice_add(page, &lsb->lsb_cl, obj, &lovsub_page_ops);
-	return 0;
-}
-
-/** @} lov */
diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c
deleted file mode 100644
index 380b8271bf24..000000000000
--- a/drivers/staging/lustre/lustre/lov/lproc_lov.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/statfs.h>
-#include "../include/lprocfs_status.h"
-#include "../include/obd_class.h"
-#include <linux/seq_file.h>
-#include "lov_internal.h"
-
-static int lov_stripesize_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *dev = (struct obd_device *)m->private;
-	struct lov_desc *desc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	seq_printf(m, "%llu\n", desc->ld_default_stripe_size);
-	return 0;
-}
-
-static ssize_t lov_stripesize_seq_write(struct file *file,
-				const char __user *buffer,
-				size_t count, loff_t *off)
-{
-	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
-	struct lov_desc *desc;
-	__u64 val;
-	int rc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	rc = lprocfs_write_u64_helper(buffer, count, &val);
-	if (rc)
-		return rc;
-
-	lov_fix_desc_stripe_size(&val);
-	desc->ld_default_stripe_size = val;
-	return count;
-}
-LPROC_SEQ_FOPS(lov_stripesize);
-
-static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *dev = (struct obd_device *)m->private;
-	struct lov_desc *desc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	seq_printf(m, "%llu\n", desc->ld_default_stripe_offset);
-	return 0;
-}
-
-static ssize_t lov_stripeoffset_seq_write(struct file *file,
-				const char __user *buffer,
-				size_t count, loff_t *off)
-{
-	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
-	struct lov_desc *desc;
-	__u64 val;
-	int rc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	rc = lprocfs_write_u64_helper(buffer, count, &val);
-	if (rc)
-		return rc;
-
-	desc->ld_default_stripe_offset = val;
-	return count;
-}
-LPROC_SEQ_FOPS(lov_stripeoffset);
-
-static int lov_stripetype_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *dev = (struct obd_device *)m->private;
-	struct lov_desc *desc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	seq_printf(m, "%u\n", desc->ld_pattern);
-	return 0;
-}
-
-static ssize_t lov_stripetype_seq_write(struct file *file,
-				const char __user *buffer,
-				size_t count, loff_t *off)
-{
-	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
-	struct lov_desc *desc;
-	int val, rc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	rc = lprocfs_write_helper(buffer, count, &val);
-	if (rc)
-		return rc;
-
-	lov_fix_desc_pattern(&val);
-	desc->ld_pattern = val;
-	return count;
-}
-LPROC_SEQ_FOPS(lov_stripetype);
-
-static int lov_stripecount_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *dev = (struct obd_device *)m->private;
-	struct lov_desc *desc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	seq_printf(m, "%d\n", (__s16)(desc->ld_default_stripe_count + 1) - 1);
-	return 0;
-}
-
-static ssize_t lov_stripecount_seq_write(struct file *file,
-				const char __user *buffer,
-				size_t count, loff_t *off)
-{
-	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
-	struct lov_desc *desc;
-	int val, rc;
-
-	LASSERT(dev != NULL);
-	desc = &dev->u.lov.desc;
-	rc = lprocfs_write_helper(buffer, count, &val);
-	if (rc)
-		return rc;
-
-	lov_fix_desc_stripe_count(&val);
-	desc->ld_default_stripe_count = val;
-	return count;
-}
-LPROC_SEQ_FOPS(lov_stripecount);
-
-static ssize_t numobd_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct lov_desc *desc;
-
-	desc = &dev->u.lov.desc;
-	return sprintf(buf, "%u\n", desc->ld_tgt_count);
-}
-LUSTRE_RO_ATTR(numobd);
-
-static ssize_t activeobd_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct lov_desc *desc;
-
-	desc = &dev->u.lov.desc;
-	return sprintf(buf, "%u\n", desc->ld_active_tgt_count);
-}
-LUSTRE_RO_ATTR(activeobd);
-
-static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *dev = (struct obd_device *)m->private;
-	struct lov_obd *lov;
-
-	LASSERT(dev != NULL);
-	lov = &dev->u.lov;
-	seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
-	return 0;
-}
-LPROC_SEQ_FOPS_RO(lov_desc_uuid);
-
-static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
-{
-	struct obd_device *dev = p->private;
-	struct lov_obd *lov = &dev->u.lov;
-
-	while (*pos < lov->desc.ld_tgt_count) {
-		if (lov->lov_tgts[*pos])
-			return lov->lov_tgts[*pos];
-		++*pos;
-	}
-	return NULL;
-}
-
-static void lov_tgt_seq_stop(struct seq_file *p, void *v)
-{
-}
-
-static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
-	struct obd_device *dev = p->private;
-	struct lov_obd *lov = &dev->u.lov;
-
-	while (++*pos < lov->desc.ld_tgt_count) {
-		if (lov->lov_tgts[*pos])
-			return lov->lov_tgts[*pos];
-	}
-	return NULL;
-}
-
-static int lov_tgt_seq_show(struct seq_file *p, void *v)
-{
-	struct lov_tgt_desc *tgt = v;
-
-	seq_printf(p, "%d: %s %sACTIVE\n",
-		   tgt->ltd_index, obd_uuid2str(&tgt->ltd_uuid),
-		   tgt->ltd_active ? "" : "IN");
-	return 0;
-}
-
-static const struct seq_operations lov_tgt_sops = {
-	.start = lov_tgt_seq_start,
-	.stop = lov_tgt_seq_stop,
-	.next = lov_tgt_seq_next,
-	.show = lov_tgt_seq_show,
-};
-
-static int lov_target_seq_open(struct inode *inode, struct file *file)
-{
-	struct seq_file *seq;
-	int rc;
-
-	rc = seq_open(file, &lov_tgt_sops);
-	if (rc)
-		return rc;
-
-	seq = file->private_data;
-	seq->private = inode->i_private;
-	return 0;
-}
-
-static struct lprocfs_vars lprocfs_lov_obd_vars[] = {
-	{ "stripesize",   &lov_stripesize_fops,   NULL },
-	{ "stripeoffset", &lov_stripeoffset_fops, NULL },
-	{ "stripecount",  &lov_stripecount_fops,  NULL },
-	{ "stripetype",   &lov_stripetype_fops,   NULL },
-	/*{ "filegroups", lprocfs_rd_filegroups,  NULL, 0 },*/
-	{ "desc_uuid",    &lov_desc_uuid_fops,    NULL, 0 },
-	{ NULL }
-};
-
-static struct attribute *lov_attrs[] = {
-	&lustre_attr_activeobd.attr,
-	&lustre_attr_numobd.attr,
-	NULL,
-};
-
-static struct attribute_group lov_attr_group = {
-	.attrs = lov_attrs,
-};
-
-void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars)
-{
-	lvars->sysfs_vars = &lov_attr_group;
-	lvars->obd_vars = lprocfs_lov_obd_vars;
-}
-
-const struct file_operations lov_proc_target_fops = {
-	.owner   = THIS_MODULE,
-	.open    = lov_target_seq_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = lprocfs_seq_release,
-};
diff --git a/drivers/staging/lustre/lustre/mdc/Makefile b/drivers/staging/lustre/lustre/mdc/Makefile
deleted file mode 100644
index 99ba9ff0d83a..000000000000
--- a/drivers/staging/lustre/lustre/mdc/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += mdc.o
-mdc-y := mdc_request.o mdc_reint.o mdc_lib.o mdc_locks.o lproc_mdc.o
diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
deleted file mode 100644
index 1c95f87a0e2a..000000000000
--- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/vfs.h>
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include "mdc_internal.h"
-
-static ssize_t max_rpcs_in_flight_show(struct kobject *kobj,
-				       struct attribute *attr,
-				       char *buf)
-{
-	int len;
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	len = sprintf(buf, "%u\n", cli->cl_max_rpcs_in_flight);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return len;
-}
-
-static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
-					struct attribute *attr,
-					const char *buffer,
-					size_t count)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val < 1 || val > MDC_MAX_RIF_MAX)
-		return -ERANGE;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	cli->cl_max_rpcs_in_flight = val;
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_rpcs_in_flight);
-
-static int mdc_kuc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, NULL, inode->i_private);
-}
-
-/* temporary for testing */
-static ssize_t mdc_kuc_write(struct file *file,
-				const char __user *buffer,
-				size_t count, loff_t *off)
-{
-	struct obd_device *obd =
-			((struct seq_file *)file->private_data)->private;
-	struct kuc_hdr		*lh;
-	struct hsm_action_list	*hal;
-	struct hsm_action_item	*hai;
-	int			 len;
-	int			 fd, rc;
-
-	rc = lprocfs_write_helper(buffer, count, &fd);
-	if (rc)
-		return rc;
-
-	if (fd < 0)
-		return -ERANGE;
-	CWARN("message to fd %d\n", fd);
-
-	len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
-		/* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
-
-	lh = kzalloc(len, GFP_NOFS);
-	if (!lh)
-		return -ENOMEM;
-
-	lh->kuc_magic = KUC_MAGIC;
-	lh->kuc_transport = KUC_TRANSPORT_HSM;
-	lh->kuc_msgtype = HMT_ACTION_LIST;
-	lh->kuc_msglen = len;
-
-	hal = (struct hsm_action_list *)(lh + 1);
-	hal->hal_version = HAL_VERSION;
-	hal->hal_archive_id = 1;
-	hal->hal_flags = 0;
-	obd_uuid2fsname(hal->hal_fsname, obd->obd_name, MTI_NAME_MAXLEN);
-
-	/* mock up an action list */
-	hal->hal_count = 2;
-	hai = hai_zero(hal);
-	hai->hai_action = HSMA_ARCHIVE;
-	hai->hai_fid.f_oid = 5;
-	hai->hai_len = sizeof(*hai);
-	hai = hai_next(hai);
-	hai->hai_action = HSMA_RESTORE;
-	hai->hai_fid.f_oid = 10;
-	hai->hai_len = sizeof(*hai);
-
-	/* This works for either broadcast or unicast to a single fd */
-	if (fd == 0) {
-		rc = libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
-	} else {
-		struct file *fp = fget(fd);
-
-		rc = libcfs_kkuc_msg_put(fp, lh);
-		fput(fp);
-	}
-	kfree(lh);
-	if (rc < 0)
-		return rc;
-	return count;
-}
-
-static struct file_operations mdc_kuc_fops = {
-	.open		= mdc_kuc_open,
-	.write		= mdc_kuc_write,
-	.release	= single_release,
-};
-
-LPROC_SEQ_FOPS_WR_ONLY(mdc, ping);
-
-LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags);
-LPROC_SEQ_FOPS_RO_TYPE(mdc, server_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(mdc, conn_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(mdc, timeouts);
-LPROC_SEQ_FOPS_RO_TYPE(mdc, state);
-
-/*
- * Note: below sysfs entry is provided, but not currently in use, instead
- * sbi->sb_md_brw_size is used, the per obd variable should be used
- * when DNE is enabled, and dir pages are managed in MDC layer.
- * Don't forget to enable sysfs store function then.
- */
-static ssize_t max_pages_per_rpc_show(struct kobject *kobj,
-				      struct attribute *attr,
-				      char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-
-	return sprintf(buf, "%d\n", cli->cl_max_pages_per_rpc);
-}
-LUSTRE_RO_ATTR(max_pages_per_rpc);
-
-LPROC_SEQ_FOPS_RW_TYPE(mdc, import);
-LPROC_SEQ_FOPS_RW_TYPE(mdc, pinger_recov);
-
-static struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
-	{ "ping",		&mdc_ping_fops,			NULL, 0222 },
-	{ "connect_flags",	&mdc_connect_flags_fops,	NULL, 0 },
-	/*{ "filegroups",	lprocfs_rd_filegroups,		NULL, 0 },*/
-	{ "mds_server_uuid",	&mdc_server_uuid_fops,		NULL, 0 },
-	{ "mds_conn_uuid",	&mdc_conn_uuid_fops,		NULL, 0 },
-	{ "timeouts",		&mdc_timeouts_fops,		NULL, 0 },
-	{ "import",		&mdc_import_fops,		NULL, 0 },
-	{ "state",		&mdc_state_fops,		NULL, 0 },
-	{ "hsm_nl",		&mdc_kuc_fops,			NULL, 0200 },
-	{ "pinger_recov",	&mdc_pinger_recov_fops,		NULL, 0 },
-	{ NULL }
-};
-
-static struct attribute *mdc_attrs[] = {
-	&lustre_attr_max_rpcs_in_flight.attr,
-	&lustre_attr_max_pages_per_rpc.attr,
-	NULL,
-};
-
-static struct attribute_group mdc_attr_group = {
-	.attrs = mdc_attrs,
-};
-
-void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars)
-{
-	lvars->sysfs_vars   = &mdc_attr_group;
-	lvars->obd_vars     = lprocfs_mdc_obd_vars;
-}
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_internal.h b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
deleted file mode 100644
index 4d149435e949..000000000000
--- a/drivers/staging/lustre/lustre/mdc/mdc_internal.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _MDC_INTERNAL_H
-#define _MDC_INTERNAL_H
-
-#include "../include/lustre_mdc.h"
-#include "../include/lustre_mds.h"
-
-void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars);
-
-void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
-		   struct obd_capa *oc, __u64 valid, int ea_size,
-		   __u32 suppgid, int flags);
-void mdc_pack_capa(struct ptlrpc_request *req,
-		   const struct req_msg_field *field, struct obd_capa *oc);
-int mdc_pack_req(struct ptlrpc_request *req, int version, int opc);
-void mdc_is_subdir_pack(struct ptlrpc_request *req, const struct lu_fid *pfid,
-			const struct lu_fid *cfid, int flags);
-void mdc_swap_layouts_pack(struct ptlrpc_request *req,
-			   struct md_op_data *op_data);
-void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, __u32 size,
-		      const struct lu_fid *fid, struct obd_capa *oc);
-void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
-		      struct md_op_data *data, int ea_size);
-void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		     void *ea, int ealen, void *ea2, int ea2len);
-void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		     const void *data, int datalen, __u32 mode, __u32 uid,
-		     __u32 gid, cfs_cap_t capability, __u64 rdev);
-void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		   __u32 mode, __u64 rdev, __u64 flags, const void *data,
-		   int datalen);
-void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
-void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
-void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
-void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		     const char *old, int oldlen, const char *new, int newlen);
-void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
-int mdc_enter_request(struct client_obd *cli);
-void mdc_exit_request(struct client_obd *cli);
-
-/* mdc/mdc_locks.c */
-int mdc_set_lock_data(struct obd_export *exp,
-		      __u64 *lockh, void *data, __u64 *bits);
-
-int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
-
-int mdc_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
-		    ldlm_iterator_t it, void *data);
-
-int mdc_intent_lock(struct obd_export *exp,
-		    struct md_op_data *,
-		    void *lmm, int lmmsize,
-		    struct lookup_intent *, int,
-		    struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags);
-int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
-		struct lookup_intent *it, struct md_op_data *op_data,
-		struct lustre_handle *lockh, void *lmm, int lmmsize,
-		struct ptlrpc_request **req, __u64 extra_lock_flags);
-
-int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
-			    struct list_head *cancels, ldlm_mode_t mode,
-			    __u64 bits);
-/* mdc/mdc_request.c */
-int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
-		  struct md_op_data *op_data);
-
-int mdc_open(struct obd_export *exp, u64 ino, int type, int flags,
-	     struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
-	     struct ptlrpc_request **);
-
-struct obd_client_handle;
-
-int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
-		      struct obd_export *dt_exp, struct obd_export *lmv_exp,
-		      struct lustre_md *md);
-
-int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
-
-int mdc_set_open_replay_data(struct obd_export *exp,
-			     struct obd_client_handle *och,
-			     struct lookup_intent *it);
-
-int mdc_clear_open_replay_data(struct obd_export *exp,
-			       struct obd_client_handle *och);
-void mdc_commit_open(struct ptlrpc_request *req);
-void mdc_replay_open(struct ptlrpc_request *req);
-
-int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
-	       const void *data, int datalen, int mode, __u32 uid, __u32 gid,
-	       cfs_cap_t capability, __u64 rdev,
-	       struct ptlrpc_request **request);
-int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
-	     struct ptlrpc_request **request);
-int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
-	       const char *old, int oldlen, const char *new, int newlen,
-	       struct ptlrpc_request **request);
-int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
-		void *ea, int ealen, void *ea2, int ea2len,
-		struct ptlrpc_request **request, struct md_open_data **mod);
-int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
-	       struct ptlrpc_request **request);
-int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
-		      ldlm_policy_data_t *policy, ldlm_mode_t mode,
-		      ldlm_cancel_flags_t flags, void *opaque);
-
-static inline void mdc_set_capa_size(struct ptlrpc_request *req,
-				     const struct req_msg_field *field,
-				     struct obd_capa *oc)
-{
-	if (oc == NULL)
-		req_capsule_set_size(&req->rq_pill, field, RCL_CLIENT, 0);
-	else
-		/* it is already calculated as sizeof struct obd_capa */
-		;
-}
-
-int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
-			struct lu_fid *fid, __u64 *bits);
-
-int mdc_intent_getattr_async(struct obd_export *exp,
-			     struct md_enqueue_info *minfo,
-			     struct ldlm_enqueue_info *einfo);
-
-ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
-			   const struct lu_fid *fid, ldlm_type_t type,
-			   ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			   struct lustre_handle *lockh);
-
-static inline int mdc_prep_elc_req(struct obd_export *exp,
-				   struct ptlrpc_request *req, int opc,
-				   struct list_head *cancels, int count)
-{
-	return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
-				 count);
-}
-
-#endif
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
deleted file mode 100644
index 1a850ea26849..000000000000
--- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_MDC
-#include "../include/lustre_net.h"
-#include "../include/lustre/lustre_idl.h"
-#include "mdc_internal.h"
-
-
-static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
-{
-	LASSERT(b != NULL);
-
-	b->suppgid = suppgid;
-	b->uid = from_kuid(&init_user_ns, current_uid());
-	b->gid = from_kgid(&init_user_ns, current_gid());
-	b->fsuid = from_kuid(&init_user_ns, current_fsuid());
-	b->fsgid = from_kgid(&init_user_ns, current_fsgid());
-	b->capability = cfs_curproc_cap_pack();
-}
-
-void mdc_pack_capa(struct ptlrpc_request *req,
-		   const struct req_msg_field *field,
-		   struct obd_capa *oc)
-{
-	struct req_capsule *pill = &req->rq_pill;
-	struct lustre_capa *c;
-
-	if (oc == NULL) {
-		LASSERT(req_capsule_get_size(pill, field, RCL_CLIENT) == 0);
-		return;
-	}
-
-	c = req_capsule_client_get(pill, field);
-	LASSERT(c != NULL);
-	capa_cpy(c, oc);
-	DEBUG_CAPA(D_SEC, c, "pack");
-}
-
-void mdc_is_subdir_pack(struct ptlrpc_request *req, const struct lu_fid *pfid,
-			const struct lu_fid *cfid, int flags)
-{
-	struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
-						    &RMF_MDT_BODY);
-
-	if (pfid) {
-		b->fid1 = *pfid;
-		b->valid = OBD_MD_FLID;
-	}
-	if (cfid)
-		b->fid2 = *cfid;
-	b->flags = flags;
-}
-
-void mdc_swap_layouts_pack(struct ptlrpc_request *req,
-			   struct md_op_data *op_data)
-{
-	struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
-						    &RMF_MDT_BODY);
-
-	__mdc_pack_body(b, op_data->op_suppgids[0]);
-	b->fid1 = op_data->op_fid1;
-	b->fid2 = op_data->op_fid2;
-	b->valid |= OBD_MD_FLID;
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-	mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
-}
-
-void mdc_pack_body(struct ptlrpc_request *req,
-		   const struct lu_fid *fid, struct obd_capa *oc,
-		   __u64 valid, int ea_size, __u32 suppgid, int flags)
-{
-	struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
-						    &RMF_MDT_BODY);
-	LASSERT(b != NULL);
-	b->valid = valid;
-	b->eadatasize = ea_size;
-	b->flags = flags;
-	__mdc_pack_body(b, suppgid);
-	if (fid) {
-		b->fid1 = *fid;
-		b->valid |= OBD_MD_FLID;
-		mdc_pack_capa(req, &RMF_CAPA1, oc);
-	}
-}
-
-void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff,
-		      __u32 size, const struct lu_fid *fid, struct obd_capa *oc)
-{
-	struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
-						    &RMF_MDT_BODY);
-	b->fid1 = *fid;
-	b->valid |= OBD_MD_FLID;
-	b->size = pgoff;		       /* !! */
-	b->nlink = size;			/* !! */
-	__mdc_pack_body(b, -1);
-	b->mode = LUDA_FID | LUDA_TYPE;
-
-	mdc_pack_capa(req, &RMF_CAPA1, oc);
-}
-
-/* packing of MDS records */
-void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		     const void *data, int datalen, __u32 mode,
-		     __u32 uid, __u32 gid, cfs_cap_t cap_effective, __u64 rdev)
-{
-	struct mdt_rec_create	*rec;
-	char			*tmp;
-	__u64			 flags;
-
-	CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
-	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-
-
-	rec->cr_opcode   = REINT_CREATE;
-	rec->cr_fsuid    = uid;
-	rec->cr_fsgid    = gid;
-	rec->cr_cap      = cap_effective;
-	rec->cr_fid1     = op_data->op_fid1;
-	rec->cr_fid2     = op_data->op_fid2;
-	rec->cr_mode     = mode;
-	rec->cr_rdev     = rdev;
-	rec->cr_time     = op_data->op_mod_time;
-	rec->cr_suppgid1 = op_data->op_suppgids[0];
-	rec->cr_suppgid2 = op_data->op_suppgids[1];
-	flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
-	if (op_data->op_bias & MDS_CREATE_VOLATILE)
-		flags |= MDS_OPEN_VOLATILE;
-	set_mrc_cr_flags(rec, flags);
-	rec->cr_bias     = op_data->op_bias;
-	rec->cr_umask    = current_umask();
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-
-	tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-	LOGL0(op_data->op_name, op_data->op_namelen, tmp);
-
-	if (data) {
-		tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
-		memcpy(tmp, data, datalen);
-	}
-}
-
-static __u64 mds_pack_open_flags(__u64 flags, __u32 mode)
-{
-	__u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
-				   MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS |
-				   MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK |
-				   MDS_OPEN_BY_FID | MDS_OPEN_LEASE |
-				   MDS_OPEN_RELEASE));
-	if (flags & O_CREAT)
-		cr_flags |= MDS_OPEN_CREAT;
-	if (flags & O_EXCL)
-		cr_flags |= MDS_OPEN_EXCL;
-	if (flags & O_TRUNC)
-		cr_flags |= MDS_OPEN_TRUNC;
-	if (flags & O_APPEND)
-		cr_flags |= MDS_OPEN_APPEND;
-	if (flags & O_SYNC)
-		cr_flags |= MDS_OPEN_SYNC;
-	if (flags & O_DIRECTORY)
-		cr_flags |= MDS_OPEN_DIRECTORY;
-	if (flags & __FMODE_EXEC)
-		cr_flags |= MDS_FMODE_EXEC;
-	if (cl_is_lov_delay_create(flags))
-		cr_flags |= MDS_OPEN_DELAY_CREATE;
-
-	if (flags & O_NONBLOCK)
-		cr_flags |= MDS_OPEN_NORESTORE;
-
-	return cr_flags;
-}
-
-/* packing of MDS records */
-void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		   __u32 mode, __u64 rdev, __u64 flags, const void *lmm,
-		   int lmmlen)
-{
-	struct mdt_rec_create *rec;
-	char *tmp;
-	__u64 cr_flags;
-
-	CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
-	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-
-	/* XXX do something about time, uid, gid */
-	rec->cr_opcode   = REINT_OPEN;
-	rec->cr_fsuid    = from_kuid(&init_user_ns, current_fsuid());
-	rec->cr_fsgid    = from_kgid(&init_user_ns, current_fsgid());
-	rec->cr_cap      = cfs_curproc_cap_pack();
-	rec->cr_fid1 = op_data->op_fid1;
-	rec->cr_fid2 = op_data->op_fid2;
-
-	rec->cr_mode     = mode;
-	cr_flags = mds_pack_open_flags(flags, mode);
-	rec->cr_rdev     = rdev;
-	rec->cr_time     = op_data->op_mod_time;
-	rec->cr_suppgid1 = op_data->op_suppgids[0];
-	rec->cr_suppgid2 = op_data->op_suppgids[1];
-	rec->cr_bias     = op_data->op_bias;
-	rec->cr_umask    = current_umask();
-	rec->cr_old_handle = op_data->op_handle;
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-	/* the next buffer is child capa, which is used for replay,
-	 * will be packed from the data in reply message. */
-
-	if (op_data->op_name) {
-		tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-		LOGL0(op_data->op_name, op_data->op_namelen, tmp);
-		if (op_data->op_bias & MDS_CREATE_VOLATILE)
-			cr_flags |= MDS_OPEN_VOLATILE;
-	}
-
-	if (lmm) {
-		cr_flags |= MDS_OPEN_HAS_EA;
-		tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
-		memcpy(tmp, lmm, lmmlen);
-	}
-	set_mrc_cr_flags(rec, cr_flags);
-}
-
-static inline __u64 attr_pack(unsigned int ia_valid)
-{
-	__u64 sa_valid = 0;
-
-	if (ia_valid & ATTR_MODE)
-		sa_valid |= MDS_ATTR_MODE;
-	if (ia_valid & ATTR_UID)
-		sa_valid |= MDS_ATTR_UID;
-	if (ia_valid & ATTR_GID)
-		sa_valid |= MDS_ATTR_GID;
-	if (ia_valid & ATTR_SIZE)
-		sa_valid |= MDS_ATTR_SIZE;
-	if (ia_valid & ATTR_ATIME)
-		sa_valid |= MDS_ATTR_ATIME;
-	if (ia_valid & ATTR_MTIME)
-		sa_valid |= MDS_ATTR_MTIME;
-	if (ia_valid & ATTR_CTIME)
-		sa_valid |= MDS_ATTR_CTIME;
-	if (ia_valid & ATTR_ATIME_SET)
-		sa_valid |= MDS_ATTR_ATIME_SET;
-	if (ia_valid & ATTR_MTIME_SET)
-		sa_valid |= MDS_ATTR_MTIME_SET;
-	if (ia_valid & ATTR_FORCE)
-		sa_valid |= MDS_ATTR_FORCE;
-	if (ia_valid & ATTR_ATTR_FLAG)
-		sa_valid |= MDS_ATTR_ATTR_FLAG;
-	if (ia_valid & ATTR_KILL_SUID)
-		sa_valid |=  MDS_ATTR_KILL_SUID;
-	if (ia_valid & ATTR_KILL_SGID)
-		sa_valid |= MDS_ATTR_KILL_SGID;
-	if (ia_valid & ATTR_CTIME_SET)
-		sa_valid |= MDS_ATTR_CTIME_SET;
-	if (ia_valid & ATTR_OPEN)
-		sa_valid |= MDS_ATTR_FROM_OPEN;
-	if (ia_valid & ATTR_BLOCKS)
-		sa_valid |= MDS_ATTR_BLOCKS;
-	if (ia_valid & MDS_OPEN_OWNEROVERRIDE)
-		/* NFSD hack (see bug 5781) */
-		sa_valid |= MDS_OPEN_OWNEROVERRIDE;
-	return sa_valid;
-}
-
-static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
-				 struct md_op_data *op_data)
-{
-	rec->sa_opcode  = REINT_SETATTR;
-	rec->sa_fsuid   = from_kuid(&init_user_ns, current_fsuid());
-	rec->sa_fsgid   = from_kgid(&init_user_ns, current_fsgid());
-	rec->sa_cap     = cfs_curproc_cap_pack();
-	rec->sa_suppgid = -1;
-
-	rec->sa_fid    = op_data->op_fid1;
-	rec->sa_valid  = attr_pack(op_data->op_attr.ia_valid);
-	rec->sa_mode   = op_data->op_attr.ia_mode;
-	rec->sa_uid    = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
-	rec->sa_gid    = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
-	rec->sa_size   = op_data->op_attr.ia_size;
-	rec->sa_blocks = op_data->op_attr_blocks;
-	rec->sa_atime  = LTIME_S(op_data->op_attr.ia_atime);
-	rec->sa_mtime  = LTIME_S(op_data->op_attr.ia_mtime);
-	rec->sa_ctime  = LTIME_S(op_data->op_attr.ia_ctime);
-	rec->sa_attr_flags =
-			((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags;
-	if ((op_data->op_attr.ia_valid & ATTR_GID) &&
-	    in_group_p(op_data->op_attr.ia_gid))
-		rec->sa_suppgid =
-			from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
-	else
-		rec->sa_suppgid = op_data->op_suppgids[0];
-
-	rec->sa_bias = op_data->op_bias;
-}
-
-static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
-			     struct md_op_data *op_data)
-{
-	memcpy(&epoch->handle, &op_data->op_handle, sizeof(epoch->handle));
-	epoch->ioepoch = op_data->op_ioepoch;
-	epoch->flags = op_data->op_flags & MF_SOM_LOCAL_FLAGS;
-}
-
-void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		      void *ea, int ealen, void *ea2, int ea2len)
-{
-	struct mdt_rec_setattr *rec;
-	struct mdt_ioepoch *epoch;
-	struct lov_user_md *lum = NULL;
-
-	CLASSERT(sizeof(struct mdt_rec_reint) ==
-					sizeof(struct mdt_rec_setattr));
-	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-	mdc_setattr_pack_rec(rec, op_data);
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-
-	if (op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) {
-		epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
-		mdc_ioepoch_pack(epoch, op_data);
-	}
-
-	if (ealen == 0)
-		return;
-
-	lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
-	if (ea == NULL) { /* Remove LOV EA */
-		lum->lmm_magic = LOV_USER_MAGIC_V1;
-		lum->lmm_stripe_size = 0;
-		lum->lmm_stripe_count = 0;
-		lum->lmm_stripe_offset = (typeof(lum->lmm_stripe_offset))(-1);
-	} else {
-		memcpy(lum, ea, ealen);
-	}
-
-	if (ea2len == 0)
-		return;
-
-	memcpy(req_capsule_client_get(&req->rq_pill, &RMF_LOGCOOKIES), ea2,
-	       ea2len);
-}
-
-void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
-{
-	struct mdt_rec_unlink *rec;
-	char *tmp;
-
-	CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
-	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-	LASSERT(rec != NULL);
-
-	rec->ul_opcode   = op_data->op_cli_flags & CLI_RM_ENTRY ?
-					REINT_RMENTRY : REINT_UNLINK;
-	rec->ul_fsuid    = op_data->op_fsuid;
-	rec->ul_fsgid    = op_data->op_fsgid;
-	rec->ul_cap      = op_data->op_cap;
-	rec->ul_mode     = op_data->op_mode;
-	rec->ul_suppgid1 = op_data->op_suppgids[0];
-	rec->ul_suppgid2 = -1;
-	rec->ul_fid1     = op_data->op_fid1;
-	rec->ul_fid2     = op_data->op_fid2;
-	rec->ul_time     = op_data->op_mod_time;
-	rec->ul_bias     = op_data->op_bias;
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-
-	tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-	LASSERT(tmp != NULL);
-	LOGL0(op_data->op_name, op_data->op_namelen, tmp);
-}
-
-void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
-{
-	struct mdt_rec_link *rec;
-	char *tmp;
-
-	CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
-	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-	LASSERT(rec != NULL);
-
-	rec->lk_opcode   = REINT_LINK;
-	rec->lk_fsuid    = op_data->op_fsuid; /* current->fsuid; */
-	rec->lk_fsgid    = op_data->op_fsgid; /* current->fsgid; */
-	rec->lk_cap      = op_data->op_cap;   /* current->cap_effective; */
-	rec->lk_suppgid1 = op_data->op_suppgids[0];
-	rec->lk_suppgid2 = op_data->op_suppgids[1];
-	rec->lk_fid1     = op_data->op_fid1;
-	rec->lk_fid2     = op_data->op_fid2;
-	rec->lk_time     = op_data->op_mod_time;
-	rec->lk_bias     = op_data->op_bias;
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-	mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
-
-	tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-	LOGL0(op_data->op_name, op_data->op_namelen, tmp);
-}
-
-void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
-		     const char *old, int oldlen, const char *new, int newlen)
-{
-	struct mdt_rec_rename *rec;
-	char *tmp;
-
-	CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
-	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-
-	/* XXX do something about time, uid, gid */
-	rec->rn_opcode   = REINT_RENAME;
-	rec->rn_fsuid    = op_data->op_fsuid;
-	rec->rn_fsgid    = op_data->op_fsgid;
-	rec->rn_cap      = op_data->op_cap;
-	rec->rn_suppgid1 = op_data->op_suppgids[0];
-	rec->rn_suppgid2 = op_data->op_suppgids[1];
-	rec->rn_fid1     = op_data->op_fid1;
-	rec->rn_fid2     = op_data->op_fid2;
-	rec->rn_time     = op_data->op_mod_time;
-	rec->rn_mode     = op_data->op_mode;
-	rec->rn_bias     = op_data->op_bias;
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-	mdc_pack_capa(req, &RMF_CAPA2, op_data->op_capa2);
-
-	tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-	LOGL0(old, oldlen, tmp);
-
-	if (new) {
-		tmp = req_capsule_client_get(&req->rq_pill, &RMF_SYMTGT);
-		LOGL0(new, newlen, tmp);
-	}
-}
-
-void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
-		      struct md_op_data *op_data, int ea_size)
-{
-	struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
-						    &RMF_MDT_BODY);
-
-	b->valid = valid;
-	if (op_data->op_bias & MDS_CHECK_SPLIT)
-		b->valid |= OBD_MD_FLCKSPLIT;
-	if (op_data->op_bias & MDS_CROSS_REF)
-		b->valid |= OBD_MD_FLCROSSREF;
-	b->eadatasize = ea_size;
-	b->flags = flags;
-	__mdc_pack_body(b, op_data->op_suppgids[0]);
-
-	b->fid1 = op_data->op_fid1;
-	b->fid2 = op_data->op_fid2;
-	b->valid |= OBD_MD_FLID;
-
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-
-	if (op_data->op_name) {
-		char *tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-
-		LOGL0(op_data->op_name, op_data->op_namelen, tmp);
-
-	}
-}
-
-static void mdc_hsm_release_pack(struct ptlrpc_request *req,
-				 struct md_op_data *op_data)
-{
-	if (op_data->op_bias & MDS_HSM_RELEASE) {
-		struct close_data *data;
-		struct ldlm_lock *lock;
-
-		data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
-		LASSERT(data != NULL);
-
-		lock = ldlm_handle2lock(&op_data->op_lease_handle);
-		if (lock != NULL) {
-			data->cd_handle = lock->l_remote_handle;
-			ldlm_lock_put(lock);
-		}
-		ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
-
-		data->cd_data_version = op_data->op_data_version;
-		data->cd_fid = op_data->op_fid2;
-	}
-}
-
-void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
-{
-	struct mdt_ioepoch *epoch;
-	struct mdt_rec_setattr *rec;
-
-	epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
-	rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-
-	mdc_setattr_pack_rec(rec, op_data);
-	mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
-	mdc_ioepoch_pack(epoch, op_data);
-	mdc_hsm_release_pack(req, op_data);
-}
-
-static int mdc_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
-{
-	int rc;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = list_empty(&mcw->mcw_entry);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
-};
-
-/* We record requests in flight in cli->cl_r_in_flight here.
- * There is only one write rpc possible in mdc anyway. If this to change
- * in the future - the code may need to be revisited. */
-int mdc_enter_request(struct client_obd *cli)
-{
-	int rc = 0;
-	struct mdc_cache_waiter mcw;
-	struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-		list_add_tail(&mcw.mcw_entry, &cli->cl_cache_waiters);
-		init_waitqueue_head(&mcw.mcw_waitq);
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-		rc = l_wait_event(mcw.mcw_waitq, mdc_req_avail(cli, &mcw),
-				  &lwi);
-		if (rc) {
-			client_obd_list_lock(&cli->cl_loi_list_lock);
-			if (list_empty(&mcw.mcw_entry))
-				cli->cl_r_in_flight--;
-			list_del_init(&mcw.mcw_entry);
-			client_obd_list_unlock(&cli->cl_loi_list_lock);
-		}
-	} else {
-		cli->cl_r_in_flight++;
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-	}
-	return rc;
-}
-
-void mdc_exit_request(struct client_obd *cli)
-{
-	struct list_head *l, *tmp;
-	struct mdc_cache_waiter *mcw;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	cli->cl_r_in_flight--;
-	list_for_each_safe(l, tmp, &cli->cl_cache_waiters) {
-		if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) {
-			/* No free request slots anymore */
-			break;
-		}
-
-		mcw = list_entry(l, struct mdc_cache_waiter, mcw_entry);
-		list_del_init(&mcw->mcw_entry);
-		cli->cl_r_in_flight++;
-		wake_up(&mcw->mcw_waitq);
-	}
-	/* Empty waiting list? Decrease reqs in-flight number */
-
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-}
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
deleted file mode 100644
index bcb6c00c49ff..000000000000
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ /dev/null
@@ -1,1313 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_MDC
-
-# include <linux/module.h>
-
-#include "../include/lustre_intent.h"
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_fid.h"	/* fid_res_name_eq() */
-#include "../include/lustre_mdc.h"
-#include "../include/lustre_net.h"
-#include "../include/lustre_req_layout.h"
-#include "mdc_internal.h"
-
-struct mdc_getattr_args {
-	struct obd_export	   *ga_exp;
-	struct md_enqueue_info      *ga_minfo;
-	struct ldlm_enqueue_info    *ga_einfo;
-};
-
-int it_disposition(struct lookup_intent *it, int flag)
-{
-	return it->d.lustre.it_disposition & flag;
-}
-EXPORT_SYMBOL(it_disposition);
-
-void it_set_disposition(struct lookup_intent *it, int flag)
-{
-	it->d.lustre.it_disposition |= flag;
-}
-EXPORT_SYMBOL(it_set_disposition);
-
-void it_clear_disposition(struct lookup_intent *it, int flag)
-{
-	it->d.lustre.it_disposition &= ~flag;
-}
-EXPORT_SYMBOL(it_clear_disposition);
-
-int it_open_error(int phase, struct lookup_intent *it)
-{
-	if (it_disposition(it, DISP_OPEN_LEASE)) {
-		if (phase >= DISP_OPEN_LEASE)
-			return it->d.lustre.it_status;
-		else
-			return 0;
-	}
-	if (it_disposition(it, DISP_OPEN_OPEN)) {
-		if (phase >= DISP_OPEN_OPEN)
-			return it->d.lustre.it_status;
-		else
-			return 0;
-	}
-
-	if (it_disposition(it, DISP_OPEN_CREATE)) {
-		if (phase >= DISP_OPEN_CREATE)
-			return it->d.lustre.it_status;
-		else
-			return 0;
-	}
-
-	if (it_disposition(it, DISP_LOOKUP_EXECD)) {
-		if (phase >= DISP_LOOKUP_EXECD)
-			return it->d.lustre.it_status;
-		else
-			return 0;
-	}
-
-	if (it_disposition(it, DISP_IT_EXECD)) {
-		if (phase >= DISP_IT_EXECD)
-			return it->d.lustre.it_status;
-		else
-			return 0;
-	}
-	CERROR("it disp: %X, status: %d\n", it->d.lustre.it_disposition,
-	       it->d.lustre.it_status);
-	LBUG();
-	return 0;
-}
-EXPORT_SYMBOL(it_open_error);
-
-/* this must be called on a lockh that is known to have a referenced lock */
-int mdc_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data,
-		      __u64 *bits)
-{
-	struct ldlm_lock *lock;
-	struct inode *new_inode = data;
-
-	if (bits)
-		*bits = 0;
-
-	if (!*lockh)
-		return 0;
-
-	lock = ldlm_handle2lock((struct lustre_handle *)lockh);
-
-	LASSERT(lock != NULL);
-	lock_res_and_lock(lock);
-	if (lock->l_resource->lr_lvb_inode &&
-	    lock->l_resource->lr_lvb_inode != data) {
-		struct inode *old_inode = lock->l_resource->lr_lvb_inode;
-
-		LASSERTF(old_inode->i_state & I_FREEING,
-			 "Found existing inode %p/%lu/%u state %lu in lock: setting data to %p/%lu/%u\n",
-			 old_inode, old_inode->i_ino, old_inode->i_generation,
-			 old_inode->i_state, new_inode, new_inode->i_ino,
-			 new_inode->i_generation);
-	}
-	lock->l_resource->lr_lvb_inode = new_inode;
-	if (bits)
-		*bits = lock->l_policy_data.l_inodebits.bits;
-
-	unlock_res_and_lock(lock);
-	LDLM_LOCK_PUT(lock);
-
-	return 0;
-}
-
-ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
-			   const struct lu_fid *fid, ldlm_type_t type,
-			   ldlm_policy_data_t *policy, ldlm_mode_t mode,
-			   struct lustre_handle *lockh)
-{
-	struct ldlm_res_id res_id;
-	ldlm_mode_t rc;
-
-	fid_build_reg_res_name(fid, &res_id);
-	/* LU-4405: Clear bits not supported by server */
-	policy->l_inodebits.bits &= exp_connect_ibits(exp);
-	rc = ldlm_lock_match(class_exp2obd(exp)->obd_namespace, flags,
-			     &res_id, type, policy, mode, lockh, 0);
-	return rc;
-}
-
-int mdc_cancel_unused(struct obd_export *exp,
-		      const struct lu_fid *fid,
-		      ldlm_policy_data_t *policy,
-		      ldlm_mode_t mode,
-		      ldlm_cancel_flags_t flags,
-		      void *opaque)
-{
-	struct ldlm_res_id res_id;
-	struct obd_device *obd = class_exp2obd(exp);
-	int rc;
-
-	fid_build_reg_res_name(fid, &res_id);
-	rc = ldlm_cli_cancel_unused_resource(obd->obd_namespace, &res_id,
-					     policy, mode, flags, opaque);
-	return rc;
-}
-
-int mdc_null_inode(struct obd_export *exp,
-		   const struct lu_fid *fid)
-{
-	struct ldlm_res_id res_id;
-	struct ldlm_resource *res;
-	struct ldlm_namespace *ns = class_exp2obd(exp)->obd_namespace;
-
-	LASSERTF(ns != NULL, "no namespace passed\n");
-
-	fid_build_reg_res_name(fid, &res_id);
-
-	res = ldlm_resource_get(ns, NULL, &res_id, 0, 0);
-	if (res == NULL)
-		return 0;
-
-	lock_res(res);
-	res->lr_lvb_inode = NULL;
-	unlock_res(res);
-
-	ldlm_resource_putref(res);
-	return 0;
-}
-
-/* find any ldlm lock of the inode in mdc
- * return 0    not find
- *	1    find one
- *      < 0    error */
-int mdc_find_cbdata(struct obd_export *exp,
-		    const struct lu_fid *fid,
-		    ldlm_iterator_t it, void *data)
-{
-	struct ldlm_res_id res_id;
-	int rc = 0;
-
-	fid_build_reg_res_name((struct lu_fid *)fid, &res_id);
-	rc = ldlm_resource_iterate(class_exp2obd(exp)->obd_namespace, &res_id,
-				   it, data);
-	if (rc == LDLM_ITER_STOP)
-		return 1;
-	else if (rc == LDLM_ITER_CONTINUE)
-		return 0;
-	return rc;
-}
-
-static inline void mdc_clear_replay_flag(struct ptlrpc_request *req, int rc)
-{
-	/* Don't hold error requests for replay. */
-	if (req->rq_replay) {
-		spin_lock(&req->rq_lock);
-		req->rq_replay = 0;
-		spin_unlock(&req->rq_lock);
-	}
-	if (rc && req->rq_transno != 0) {
-		DEBUG_REQ(D_ERROR, req, "transno returned on error rc %d", rc);
-		LBUG();
-	}
-}
-
-/* Save a large LOV EA into the request buffer so that it is available
- * for replay.  We don't do this in the initial request because the
- * original request doesn't need this buffer (at most it sends just the
- * lov_mds_md) and it is a waste of RAM/bandwidth to send the empty
- * buffer and may also be difficult to allocate and save a very large
- * request buffer for each open. (bug 5707)
- *
- * OOM here may cause recovery failure if lmm is needed (only for the
- * original open if the MDS crashed just when this client also OOM'd)
- * but this is incredibly unlikely, and questionable whether the client
- * could do MDS recovery under OOM anyways... */
-static void mdc_realloc_openmsg(struct ptlrpc_request *req,
-				struct mdt_body *body)
-{
-	int     rc;
-
-	/* FIXME: remove this explicit offset. */
-	rc = sptlrpc_cli_enlarge_reqbuf(req, DLM_INTENT_REC_OFF + 4,
-					body->eadatasize);
-	if (rc) {
-		CERROR("Can't enlarge segment %d size to %d\n",
-		       DLM_INTENT_REC_OFF + 4, body->eadatasize);
-		body->valid &= ~OBD_MD_FLEASIZE;
-		body->eadatasize = 0;
-	}
-}
-
-static struct ptlrpc_request *mdc_intent_open_pack(struct obd_export *exp,
-						   struct lookup_intent *it,
-						   struct md_op_data *op_data,
-						   void *lmm, int lmmsize,
-						   void *cb_data)
-{
-	struct ptlrpc_request *req;
-	struct obd_device     *obddev = class_exp2obd(exp);
-	struct ldlm_intent    *lit;
-	LIST_HEAD(cancels);
-	int		    count = 0;
-	int		    mode;
-	int		    rc;
-
-	it->it_create_mode = (it->it_create_mode & ~S_IFMT) | S_IFREG;
-
-	/* XXX: openlock is not cancelled for cross-refs. */
-	/* If inode is known, cancel conflicting OPEN locks. */
-	if (fid_is_sane(&op_data->op_fid2)) {
-		if (it->it_flags & MDS_OPEN_LEASE) { /* try to get lease */
-			if (it->it_flags & FMODE_WRITE)
-				mode = LCK_EX;
-			else
-				mode = LCK_PR;
-		} else {
-			if (it->it_flags & (FMODE_WRITE|MDS_OPEN_TRUNC))
-				mode = LCK_CW;
-			else if (it->it_flags & __FMODE_EXEC)
-				mode = LCK_PR;
-			else
-				mode = LCK_CR;
-		}
-		count = mdc_resource_get_unused(exp, &op_data->op_fid2,
-						&cancels, mode,
-						MDS_INODELOCK_OPEN);
-	}
-
-	/* If CREATE, cancel parent's UPDATE lock. */
-	if (it->it_op & IT_CREAT)
-		mode = LCK_EX;
-	else
-		mode = LCK_CR;
-	count += mdc_resource_get_unused(exp, &op_data->op_fid1,
-					 &cancels, mode,
-					 MDS_INODELOCK_UPDATE);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_LDLM_INTENT_OPEN);
-	if (req == NULL) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	/* parent capability */
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	/* child capability, reserve the size according to parent capa, it will
-	 * be filled after we get the reply */
-	mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa1);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
-			     max(lmmsize, obddev->u.cli.cl_default_mds_easize));
-
-	rc = ldlm_prep_enqueue_req(exp, req, &cancels, count);
-	if (rc < 0) {
-		ptlrpc_request_free(req);
-		return ERR_PTR(rc);
-	}
-
-	spin_lock(&req->rq_lock);
-	req->rq_replay = req->rq_import->imp_replayable;
-	spin_unlock(&req->rq_lock);
-
-	/* pack the intent */
-	lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT);
-	lit->opc = (__u64)it->it_op;
-
-	/* pack the intended request */
-	mdc_open_pack(req, op_data, it->it_create_mode, 0, it->it_flags, lmm,
-		      lmmsize);
-
-	/* for remote client, fetch remote perm for current user */
-	if (client_is_remote(exp))
-		req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
-				     sizeof(struct mdt_remote_perm));
-	ptlrpc_request_set_replen(req);
-	return req;
-}
-
-static struct ptlrpc_request *
-mdc_intent_getxattr_pack(struct obd_export *exp,
-			 struct lookup_intent *it,
-			 struct md_op_data *op_data)
-{
-	struct ptlrpc_request	*req;
-	struct ldlm_intent	*lit;
-	int			rc, count = 0, maxdata;
-	LIST_HEAD(cancels);
-
-
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-					&RQF_LDLM_INTENT_GETXATTR);
-	if (req == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-
-	rc = ldlm_prep_enqueue_req(exp, req, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return ERR_PTR(rc);
-	}
-
-	/* pack the intent */
-	lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT);
-	lit->opc = IT_GETXATTR;
-
-	maxdata = class_exp2cliimp(exp)->imp_connect_data.ocd_max_easize;
-
-	/* pack the intended request */
-	mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
-			op_data->op_valid, maxdata, -1, 0);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
-				RCL_SERVER, maxdata);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_EAVALS,
-				RCL_SERVER, maxdata);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_EAVALS_LENS,
-				RCL_SERVER, maxdata);
-
-	ptlrpc_request_set_replen(req);
-
-	return req;
-}
-
-static struct ptlrpc_request *mdc_intent_unlink_pack(struct obd_export *exp,
-						     struct lookup_intent *it,
-						     struct md_op_data *op_data)
-{
-	struct ptlrpc_request *req;
-	struct obd_device     *obddev = class_exp2obd(exp);
-	struct ldlm_intent    *lit;
-	int		    rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_LDLM_INTENT_UNLINK);
-	if (req == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-
-	rc = ldlm_prep_enqueue_req(exp, req, NULL, 0);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return ERR_PTR(rc);
-	}
-
-	/* pack the intent */
-	lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT);
-	lit->opc = (__u64)it->it_op;
-
-	/* pack the intended request */
-	mdc_unlink_pack(req, op_data);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     obddev->u.cli.cl_default_mds_easize);
-	req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
-			     obddev->u.cli.cl_default_mds_cookiesize);
-	ptlrpc_request_set_replen(req);
-	return req;
-}
-
-static struct ptlrpc_request *mdc_intent_getattr_pack(struct obd_export *exp,
-						    struct lookup_intent *it,
-						    struct md_op_data *op_data)
-{
-	struct ptlrpc_request *req;
-	struct obd_device     *obddev = class_exp2obd(exp);
-	u64		       valid = OBD_MD_FLGETATTR | OBD_MD_FLEASIZE |
-				       OBD_MD_FLMODEASIZE | OBD_MD_FLDIREA |
-				       OBD_MD_FLMDSCAPA | OBD_MD_MEA |
-				       (client_is_remote(exp) ?
-					       OBD_MD_FLRMTPERM : OBD_MD_FLACL);
-	struct ldlm_intent    *lit;
-	int		    rc;
-	int		    easize;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_LDLM_INTENT_GETATTR);
-	if (req == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-
-	rc = ldlm_prep_enqueue_req(exp, req, NULL, 0);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return ERR_PTR(rc);
-	}
-
-	/* pack the intent */
-	lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT);
-	lit->opc = (__u64)it->it_op;
-
-	if (obddev->u.cli.cl_default_mds_easize > 0)
-		easize = obddev->u.cli.cl_default_mds_easize;
-	else
-		easize = obddev->u.cli.cl_max_mds_easize;
-
-	/* pack the intended request */
-	mdc_getattr_pack(req, valid, it->it_flags, op_data, easize);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, easize);
-	if (client_is_remote(exp))
-		req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
-				     sizeof(struct mdt_remote_perm));
-	ptlrpc_request_set_replen(req);
-	return req;
-}
-
-static struct ptlrpc_request *mdc_intent_layout_pack(struct obd_export *exp,
-						     struct lookup_intent *it,
-						     struct md_op_data *unused)
-{
-	struct obd_device     *obd = class_exp2obd(exp);
-	struct ptlrpc_request *req;
-	struct ldlm_intent    *lit;
-	struct layout_intent  *layout;
-	int rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				&RQF_LDLM_INTENT_LAYOUT);
-	if (req == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT, 0);
-	rc = ldlm_prep_enqueue_req(exp, req, NULL, 0);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return ERR_PTR(rc);
-	}
-
-	/* pack the intent */
-	lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT);
-	lit->opc = (__u64)it->it_op;
-
-	/* pack the layout intent request */
-	layout = req_capsule_client_get(&req->rq_pill, &RMF_LAYOUT_INTENT);
-	/* LAYOUT_INTENT_ACCESS is generic, specific operation will be
-	 * set for replication */
-	layout->li_opc = LAYOUT_INTENT_ACCESS;
-
-	req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_easize);
-	ptlrpc_request_set_replen(req);
-	return req;
-}
-
-static struct ptlrpc_request *
-mdc_enqueue_pack(struct obd_export *exp, int lvb_len)
-{
-	struct ptlrpc_request *req;
-	int rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LDLM_ENQUEUE);
-	if (req == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	rc = ldlm_prep_enqueue_req(exp, req, NULL, 0);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return ERR_PTR(rc);
-	}
-
-	req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER, lvb_len);
-	ptlrpc_request_set_replen(req);
-	return req;
-}
-
-static int mdc_finish_enqueue(struct obd_export *exp,
-			      struct ptlrpc_request *req,
-			      struct ldlm_enqueue_info *einfo,
-			      struct lookup_intent *it,
-			      struct lustre_handle *lockh,
-			      int rc)
-{
-	struct req_capsule  *pill = &req->rq_pill;
-	struct ldlm_request *lockreq;
-	struct ldlm_reply   *lockrep;
-	struct lustre_intent_data *intent = &it->d.lustre;
-	struct ldlm_lock    *lock;
-	void		*lvb_data = NULL;
-	int		  lvb_len = 0;
-
-	LASSERT(rc >= 0);
-	/* Similarly, if we're going to replay this request, we don't want to
-	 * actually get a lock, just perform the intent. */
-	if (req->rq_transno || req->rq_replay) {
-		lockreq = req_capsule_client_get(pill, &RMF_DLM_REQ);
-		lockreq->lock_flags |= ldlm_flags_to_wire(LDLM_FL_INTENT_ONLY);
-	}
-
-	if (rc == ELDLM_LOCK_ABORTED) {
-		einfo->ei_mode = 0;
-		memset(lockh, 0, sizeof(*lockh));
-		rc = 0;
-	} else { /* rc = 0 */
-		lock = ldlm_handle2lock(lockh);
-		LASSERT(lock != NULL);
-
-		/* If the server gave us back a different lock mode, we should
-		 * fix up our variables. */
-		if (lock->l_req_mode != einfo->ei_mode) {
-			ldlm_lock_addref(lockh, lock->l_req_mode);
-			ldlm_lock_decref(lockh, einfo->ei_mode);
-			einfo->ei_mode = lock->l_req_mode;
-		}
-		LDLM_LOCK_PUT(lock);
-	}
-
-	lockrep = req_capsule_server_get(pill, &RMF_DLM_REP);
-	LASSERT(lockrep != NULL); /* checked by ldlm_cli_enqueue() */
-
-	intent->it_disposition = (int)lockrep->lock_policy_res1;
-	intent->it_status = (int)lockrep->lock_policy_res2;
-	intent->it_lock_mode = einfo->ei_mode;
-	intent->it_lock_handle = lockh->cookie;
-	intent->it_data = req;
-
-	/* Technically speaking rq_transno must already be zero if
-	 * it_status is in error, so the check is a bit redundant */
-	if ((!req->rq_transno || intent->it_status < 0) && req->rq_replay)
-		mdc_clear_replay_flag(req, intent->it_status);
-
-	/* If we're doing an IT_OPEN which did not result in an actual
-	 * successful open, then we need to remove the bit which saves
-	 * this request for unconditional replay.
-	 *
-	 * It's important that we do this first!  Otherwise we might exit the
-	 * function without doing so, and try to replay a failed create
-	 * (bug 3440) */
-	if (it->it_op & IT_OPEN && req->rq_replay &&
-	    (!it_disposition(it, DISP_OPEN_OPEN) || intent->it_status != 0))
-		mdc_clear_replay_flag(req, intent->it_status);
-
-	DEBUG_REQ(D_RPCTRACE, req, "op: %d disposition: %x, status: %d",
-		  it->it_op, intent->it_disposition, intent->it_status);
-
-	/* We know what to expect, so we do any byte flipping required here */
-	if (it->it_op & (IT_OPEN | IT_UNLINK | IT_LOOKUP | IT_GETATTR)) {
-		struct mdt_body *body;
-
-		body = req_capsule_server_get(pill, &RMF_MDT_BODY);
-		if (body == NULL) {
-			CERROR("Can't swab mdt_body\n");
-			return -EPROTO;
-		}
-
-		if (it_disposition(it, DISP_OPEN_OPEN) &&
-		    !it_open_error(DISP_OPEN_OPEN, it)) {
-			/*
-			 * If this is a successful OPEN request, we need to set
-			 * replay handler and data early, so that if replay
-			 * happens immediately after swabbing below, new reply
-			 * is swabbed by that handler correctly.
-			 */
-			mdc_set_open_replay_data(NULL, NULL, it);
-		}
-
-		if ((body->valid & (OBD_MD_FLDIREA | OBD_MD_FLEASIZE)) != 0) {
-			void *eadata;
-
-			mdc_update_max_ea_from_body(exp, body);
-
-			/*
-			 * The eadata is opaque; just check that it is there.
-			 * Eventually, obd_unpackmd() will check the contents.
-			 */
-			eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
-							      body->eadatasize);
-			if (eadata == NULL)
-				return -EPROTO;
-
-			/* save lvb data and length in case this is for layout
-			 * lock */
-			lvb_data = eadata;
-			lvb_len = body->eadatasize;
-
-			/*
-			 * We save the reply LOV EA in case we have to replay a
-			 * create for recovery.  If we didn't allocate a large
-			 * enough request buffer above we need to reallocate it
-			 * here to hold the actual LOV EA.
-			 *
-			 * To not save LOV EA if request is not going to replay
-			 * (for example error one).
-			 */
-			if ((it->it_op & IT_OPEN) && req->rq_replay) {
-				void *lmm;
-
-				if (req_capsule_get_size(pill, &RMF_EADATA,
-							 RCL_CLIENT) <
-				    body->eadatasize)
-					mdc_realloc_openmsg(req, body);
-				else
-					req_capsule_shrink(pill, &RMF_EADATA,
-							   body->eadatasize,
-							   RCL_CLIENT);
-
-				req_capsule_set_size(pill, &RMF_EADATA,
-						     RCL_CLIENT,
-						     body->eadatasize);
-
-				lmm = req_capsule_client_get(pill, &RMF_EADATA);
-				if (lmm)
-					memcpy(lmm, eadata, body->eadatasize);
-			}
-		}
-
-		if (body->valid & OBD_MD_FLRMTPERM) {
-			struct mdt_remote_perm *perm;
-
-			LASSERT(client_is_remote(exp));
-			perm = req_capsule_server_swab_get(pill, &RMF_ACL,
-						lustre_swab_mdt_remote_perm);
-			if (perm == NULL)
-				return -EPROTO;
-		}
-		if (body->valid & OBD_MD_FLMDSCAPA) {
-			struct lustre_capa *capa, *p;
-
-			capa = req_capsule_server_get(pill, &RMF_CAPA1);
-			if (capa == NULL)
-				return -EPROTO;
-
-			if (it->it_op & IT_OPEN) {
-				/* client fid capa will be checked in replay */
-				p = req_capsule_client_get(pill, &RMF_CAPA2);
-				LASSERT(p);
-				*p = *capa;
-			}
-		}
-		if (body->valid & OBD_MD_FLOSSCAPA) {
-			struct lustre_capa *capa;
-
-			capa = req_capsule_server_get(pill, &RMF_CAPA2);
-			if (capa == NULL)
-				return -EPROTO;
-		}
-	} else if (it->it_op & IT_LAYOUT) {
-		/* maybe the lock was granted right away and layout
-		 * is packed into RMF_DLM_LVB of req */
-		lvb_len = req_capsule_get_size(pill, &RMF_DLM_LVB, RCL_SERVER);
-		if (lvb_len > 0) {
-			lvb_data = req_capsule_server_sized_get(pill,
-							&RMF_DLM_LVB, lvb_len);
-			if (lvb_data == NULL)
-				return -EPROTO;
-		}
-	}
-
-	/* fill in stripe data for layout lock */
-	lock = ldlm_handle2lock(lockh);
-	if (lock != NULL && ldlm_has_layout(lock) && lvb_data != NULL) {
-		void *lmm;
-
-		LDLM_DEBUG(lock, "layout lock returned by: %s, lvb_len: %d\n",
-			ldlm_it2str(it->it_op), lvb_len);
-
-		lmm = libcfs_kvzalloc(lvb_len, GFP_NOFS);
-		if (lmm == NULL) {
-			LDLM_LOCK_PUT(lock);
-			return -ENOMEM;
-		}
-		memcpy(lmm, lvb_data, lvb_len);
-
-		/* install lvb_data */
-		lock_res_and_lock(lock);
-		if (lock->l_lvb_data == NULL) {
-			lock->l_lvb_type = LVB_T_LAYOUT;
-			lock->l_lvb_data = lmm;
-			lock->l_lvb_len = lvb_len;
-			lmm = NULL;
-		}
-		unlock_res_and_lock(lock);
-		if (lmm != NULL)
-			kvfree(lmm);
-	}
-	if (lock != NULL)
-		LDLM_LOCK_PUT(lock);
-
-	return rc;
-}
-
-/* We always reserve enough space in the reply packet for a stripe MD, because
- * we don't know in advance the file type. */
-int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
-		struct lookup_intent *it, struct md_op_data *op_data,
-		struct lustre_handle *lockh, void *lmm, int lmmsize,
-		struct ptlrpc_request **reqp, u64 extra_lock_flags)
-{
-	static const ldlm_policy_data_t lookup_policy = {
-		.l_inodebits = { MDS_INODELOCK_LOOKUP }
-	};
-	static const ldlm_policy_data_t update_policy = {
-		.l_inodebits = { MDS_INODELOCK_UPDATE }
-	};
-	static const ldlm_policy_data_t layout_policy = {
-		.l_inodebits = { MDS_INODELOCK_LAYOUT }
-	};
-	static const ldlm_policy_data_t getxattr_policy = {
-		.l_inodebits = { MDS_INODELOCK_XATTR }
-	};
-	ldlm_policy_data_t const *policy = &lookup_policy;
-	struct obd_device *obddev = class_exp2obd(exp);
-	struct ptlrpc_request *req;
-	u64 flags, saved_flags = extra_lock_flags;
-	struct ldlm_res_id res_id;
-	int generation, resends = 0;
-	struct ldlm_reply *lockrep;
-	enum lvb_type lvb_type = LVB_T_NONE;
-	int rc;
-
-	LASSERTF(!it || einfo->ei_type == LDLM_IBITS, "lock type %d\n",
-		 einfo->ei_type);
-
-	fid_build_reg_res_name(&op_data->op_fid1, &res_id);
-
-	if (it) {
-		saved_flags |= LDLM_FL_HAS_INTENT;
-		if (it->it_op & (IT_UNLINK | IT_GETATTR | IT_READDIR))
-			policy = &update_policy;
-		else if (it->it_op & IT_LAYOUT)
-			policy = &layout_policy;
-		else if (it->it_op & (IT_GETXATTR | IT_SETXATTR))
-			policy = &getxattr_policy;
-	}
-
-	LASSERT(reqp == NULL);
-
-	generation = obddev->u.cli.cl_import->imp_generation;
-resend:
-	flags = saved_flags;
-	if (!it) {
-		/* The only way right now is FLOCK, in this case we hide flock
-		   policy as lmm, but lmmsize is 0 */
-		LASSERT(lmm && lmmsize == 0);
-		LASSERTF(einfo->ei_type == LDLM_FLOCK, "lock type %d\n",
-			 einfo->ei_type);
-		policy = (ldlm_policy_data_t *)lmm;
-		res_id.name[3] = LDLM_FLOCK;
-		req = NULL;
-	} else if (it->it_op & IT_OPEN) {
-		req = mdc_intent_open_pack(exp, it, op_data, lmm, lmmsize,
-					   einfo->ei_cbdata);
-		policy = &update_policy;
-		einfo->ei_cbdata = NULL;
-		lmm = NULL;
-	} else if (it->it_op & IT_UNLINK) {
-		req = mdc_intent_unlink_pack(exp, it, op_data);
-	} else if (it->it_op & (IT_GETATTR | IT_LOOKUP)) {
-		req = mdc_intent_getattr_pack(exp, it, op_data);
-	} else if (it->it_op & IT_READDIR) {
-		req = mdc_enqueue_pack(exp, 0);
-	} else if (it->it_op & IT_LAYOUT) {
-		if (!imp_connect_lvb_type(class_exp2cliimp(exp)))
-			return -EOPNOTSUPP;
-		req = mdc_intent_layout_pack(exp, it, op_data);
-		lvb_type = LVB_T_LAYOUT;
-	} else if (it->it_op & IT_GETXATTR) {
-		req = mdc_intent_getxattr_pack(exp, it, op_data);
-	} else {
-		LBUG();
-		return -EINVAL;
-	}
-
-	if (IS_ERR(req))
-		return PTR_ERR(req);
-
-	if (req != NULL && it && it->it_op & IT_CREAT)
-		/* ask ptlrpc not to resend on EINPROGRESS since we have our own
-		 * retry logic */
-		req->rq_no_retry_einprogress = 1;
-
-	if (resends) {
-		req->rq_generation_set = 1;
-		req->rq_import_generation = generation;
-		req->rq_sent = get_seconds() + resends;
-	}
-
-	/* It is important to obtain rpc_lock first (if applicable), so that
-	 * threads that are serialised with rpc_lock are not polluting our
-	 * rpcs in flight counter. We do not do flock request limiting, though*/
-	if (it) {
-		mdc_get_rpc_lock(obddev->u.cli.cl_rpc_lock, it);
-		rc = mdc_enter_request(&obddev->u.cli);
-		if (rc != 0) {
-			mdc_put_rpc_lock(obddev->u.cli.cl_rpc_lock, it);
-			mdc_clear_replay_flag(req, 0);
-			ptlrpc_req_finished(req);
-			return rc;
-		}
-	}
-
-	rc = ldlm_cli_enqueue(exp, &req, einfo, &res_id, policy, &flags, NULL,
-			      0, lvb_type, lockh, 0);
-	if (!it) {
-		/* For flock requests we immediately return without further
-		   delay and let caller deal with the rest, since rest of
-		   this function metadata processing makes no sense for flock
-		   requests anyway. But in case of problem during comms with
-		   Server (ETIMEDOUT) or any signal/kill attempt (EINTR), we
-		   can not rely on caller and this mainly for F_UNLCKs
-		   (explicits or automatically generated by Kernel to clean
-		   current FLocks upon exit) that can't be trashed */
-		if ((rc == -EINTR) || (rc == -ETIMEDOUT))
-			goto resend;
-		return rc;
-	}
-
-	mdc_exit_request(&obddev->u.cli);
-	mdc_put_rpc_lock(obddev->u.cli.cl_rpc_lock, it);
-
-	if (rc < 0) {
-		CDEBUG_LIMIT((rc == -EACCES || rc == -EIDRM) ? D_INFO : D_ERROR,
-			     "%s: ldlm_cli_enqueue failed: rc = %d\n",
-			     obddev->obd_name, rc);
-
-		mdc_clear_replay_flag(req, rc);
-		ptlrpc_req_finished(req);
-		return rc;
-	}
-
-	lockrep = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	LASSERT(lockrep != NULL);
-
-	lockrep->lock_policy_res2 =
-		ptlrpc_status_ntoh(lockrep->lock_policy_res2);
-
-	/* Retry the create infinitely when we get -EINPROGRESS from
-	 * server. This is required by the new quota design. */
-	if (it && it->it_op & IT_CREAT &&
-	    (int)lockrep->lock_policy_res2 == -EINPROGRESS) {
-		mdc_clear_replay_flag(req, rc);
-		ptlrpc_req_finished(req);
-		resends++;
-
-		CDEBUG(D_HA, "%s: resend:%d op:%d "DFID"/"DFID"\n",
-		       obddev->obd_name, resends, it->it_op,
-		       PFID(&op_data->op_fid1), PFID(&op_data->op_fid2));
-
-		if (generation == obddev->u.cli.cl_import->imp_generation) {
-			goto resend;
-		} else {
-			CDEBUG(D_HA, "resend cross eviction\n");
-			return -EIO;
-		}
-	}
-
-	rc = mdc_finish_enqueue(exp, req, einfo, it, lockh, rc);
-	if (rc < 0) {
-		if (lustre_handle_is_used(lockh)) {
-			ldlm_lock_decref(lockh, einfo->ei_mode);
-			memset(lockh, 0, sizeof(*lockh));
-		}
-		ptlrpc_req_finished(req);
-
-		it->d.lustre.it_lock_handle = 0;
-		it->d.lustre.it_lock_mode = 0;
-		it->d.lustre.it_data = NULL;
-	}
-
-	return rc;
-}
-
-static int mdc_finish_intent_lock(struct obd_export *exp,
-				  struct ptlrpc_request *request,
-				  struct md_op_data *op_data,
-				  struct lookup_intent *it,
-				  struct lustre_handle *lockh)
-{
-	struct lustre_handle old_lock;
-	struct mdt_body *mdt_body;
-	struct ldlm_lock *lock;
-	int rc;
-
-	LASSERT(request != NULL);
-	LASSERT(request != LP_POISON);
-	LASSERT(request->rq_repmsg != LP_POISON);
-
-	if (!it_disposition(it, DISP_IT_EXECD)) {
-		/* The server failed before it even started executing the
-		 * intent, i.e. because it couldn't unpack the request. */
-		LASSERT(it->d.lustre.it_status != 0);
-		return it->d.lustre.it_status;
-	}
-	rc = it_open_error(DISP_IT_EXECD, it);
-	if (rc)
-		return rc;
-
-	mdt_body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
-	LASSERT(mdt_body != NULL);      /* mdc_enqueue checked */
-
-	/* If we were revalidating a fid/name pair, mark the intent in
-	 * case we fail and get called again from lookup */
-	if (fid_is_sane(&op_data->op_fid2) &&
-	    it->it_create_mode & M_CHECK_STALE &&
-	    it->it_op != IT_GETATTR) {
-
-		/* Also: did we find the same inode? */
-		/* sever can return one of two fids:
-		 * op_fid2 - new allocated fid - if file is created.
-		 * op_fid3 - existent fid - if file only open.
-		 * op_fid3 is saved in lmv_intent_open */
-		if ((!lu_fid_eq(&op_data->op_fid2, &mdt_body->fid1)) &&
-		    (!lu_fid_eq(&op_data->op_fid3, &mdt_body->fid1))) {
-			CDEBUG(D_DENTRY, "Found stale data "DFID"("DFID")/"DFID
-			       "\n", PFID(&op_data->op_fid2),
-			       PFID(&op_data->op_fid2), PFID(&mdt_body->fid1));
-			return -ESTALE;
-		}
-	}
-
-	rc = it_open_error(DISP_LOOKUP_EXECD, it);
-	if (rc)
-		return rc;
-
-	/* keep requests around for the multiple phases of the call
-	 * this shows the DISP_XX must guarantee we make it into the call
-	 */
-	if (!it_disposition(it, DISP_ENQ_CREATE_REF) &&
-	    it_disposition(it, DISP_OPEN_CREATE) &&
-	    !it_open_error(DISP_OPEN_CREATE, it)) {
-		it_set_disposition(it, DISP_ENQ_CREATE_REF);
-		ptlrpc_request_addref(request); /* balanced in ll_create_node */
-	}
-	if (!it_disposition(it, DISP_ENQ_OPEN_REF) &&
-	    it_disposition(it, DISP_OPEN_OPEN) &&
-	    !it_open_error(DISP_OPEN_OPEN, it)) {
-		it_set_disposition(it, DISP_ENQ_OPEN_REF);
-		ptlrpc_request_addref(request); /* balanced in ll_file_open */
-		/* BUG 11546 - eviction in the middle of open rpc processing */
-		OBD_FAIL_TIMEOUT(OBD_FAIL_MDC_ENQUEUE_PAUSE, obd_timeout);
-	}
-
-	if (it->it_op & IT_CREAT) {
-		/* XXX this belongs in ll_create_it */
-	} else if (it->it_op == IT_OPEN) {
-		LASSERT(!it_disposition(it, DISP_OPEN_CREATE));
-	} else {
-		LASSERT(it->it_op & (IT_GETATTR | IT_LOOKUP | IT_LAYOUT));
-	}
-
-	/* If we already have a matching lock, then cancel the new
-	 * one.  We have to set the data here instead of in
-	 * mdc_enqueue, because we need to use the child's inode as
-	 * the l_ast_data to match, and that's not available until
-	 * intent_finish has performed the iget().) */
-	lock = ldlm_handle2lock(lockh);
-	if (lock) {
-		ldlm_policy_data_t policy = lock->l_policy_data;
-
-		LDLM_DEBUG(lock, "matching against this");
-
-		LASSERTF(fid_res_name_eq(&mdt_body->fid1,
-					 &lock->l_resource->lr_name),
-			 "Lock res_id: "DLDLMRES", fid: "DFID"\n",
-			 PLDLMRES(lock->l_resource), PFID(&mdt_body->fid1));
-		LDLM_LOCK_PUT(lock);
-
-		memcpy(&old_lock, lockh, sizeof(*lockh));
-		if (ldlm_lock_match(NULL, LDLM_FL_BLOCK_GRANTED, NULL,
-				    LDLM_IBITS, &policy, LCK_NL,
-				    &old_lock, 0)) {
-			ldlm_lock_decref_and_cancel(lockh,
-						    it->d.lustre.it_lock_mode);
-			memcpy(lockh, &old_lock, sizeof(old_lock));
-			it->d.lustre.it_lock_handle = lockh->cookie;
-		}
-	}
-	CDEBUG(D_DENTRY,
-	       "D_IT dentry %.*s intent: %s status %d disp %x rc %d\n",
-	       op_data->op_namelen, op_data->op_name, ldlm_it2str(it->it_op),
-	       it->d.lustre.it_status, it->d.lustre.it_disposition, rc);
-	return rc;
-}
-
-int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
-			struct lu_fid *fid, __u64 *bits)
-{
-	/* We could just return 1 immediately, but since we should only
-	 * be called in revalidate_it if we already have a lock, let's
-	 * verify that. */
-	struct ldlm_res_id res_id;
-	struct lustre_handle lockh;
-	ldlm_policy_data_t policy;
-	ldlm_mode_t mode;
-
-	if (it->d.lustre.it_lock_handle) {
-		lockh.cookie = it->d.lustre.it_lock_handle;
-		mode = ldlm_revalidate_lock_handle(&lockh, bits);
-	} else {
-		fid_build_reg_res_name(fid, &res_id);
-		switch (it->it_op) {
-		case IT_GETATTR:
-			/* File attributes are held under multiple bits:
-			 * nlink is under lookup lock, size and times are
-			 * under UPDATE lock and recently we've also got
-			 * a separate permissions lock for owner/group/acl that
-			 * were protected by lookup lock before.
-			 * Getattr must provide all of that information,
-			 * so we need to ensure we have all of those locks.
-			 * Unfortunately, if the bits are split across multiple
-			 * locks, there's no easy way to match all of them here,
-			 * so an extra RPC would be performed to fetch all
-			 * of those bits at once for now. */
-			/* For new MDTs(> 2.4), UPDATE|PERM should be enough,
-			 * but for old MDTs (< 2.4), permission is covered
-			 * by LOOKUP lock, so it needs to match all bits here.*/
-			policy.l_inodebits.bits = MDS_INODELOCK_UPDATE |
-						  MDS_INODELOCK_LOOKUP |
-						  MDS_INODELOCK_PERM;
-			break;
-		case IT_LAYOUT:
-			policy.l_inodebits.bits = MDS_INODELOCK_LAYOUT;
-			break;
-		default:
-			policy.l_inodebits.bits = MDS_INODELOCK_LOOKUP;
-			break;
-		}
-
-		mode = mdc_lock_match(exp, LDLM_FL_BLOCK_GRANTED, fid,
-				       LDLM_IBITS, &policy,
-				      LCK_CR | LCK_CW | LCK_PR | LCK_PW,
-				      &lockh);
-	}
-
-	if (mode) {
-		it->d.lustre.it_lock_handle = lockh.cookie;
-		it->d.lustre.it_lock_mode = mode;
-	} else {
-		it->d.lustre.it_lock_handle = 0;
-		it->d.lustre.it_lock_mode = 0;
-	}
-
-	return !!mode;
-}
-
-/*
- * This long block is all about fixing up the lock and request state
- * so that it is correct as of the moment _before_ the operation was
- * applied; that way, the VFS will think that everything is normal and
- * call Lustre's regular VFS methods.
- *
- * If we're performing a creation, that means that unless the creation
- * failed with EEXIST, we should fake up a negative dentry.
- *
- * For everything else, we want to lookup to succeed.
- *
- * One additional note: if CREATE or OPEN succeeded, we add an extra
- * reference to the request because we need to keep it around until
- * ll_create/ll_open gets called.
- *
- * The server will return to us, in it_disposition, an indication of
- * exactly what d.lustre.it_status refers to.
- *
- * If DISP_OPEN_OPEN is set, then d.lustre.it_status refers to the open() call,
- * otherwise if DISP_OPEN_CREATE is set, then it status is the
- * creation failure mode.  In either case, one of DISP_LOOKUP_NEG or
- * DISP_LOOKUP_POS will be set, indicating whether the child lookup
- * was successful.
- *
- * Else, if DISP_LOOKUP_EXECD then d.lustre.it_status is the rc of the
- * child lookup.
- */
-int mdc_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
-		    void *lmm, int lmmsize, struct lookup_intent *it,
-		    int lookup_flags, struct ptlrpc_request **reqp,
-		    ldlm_blocking_callback cb_blocking,
-		    __u64 extra_lock_flags)
-{
-	struct ldlm_enqueue_info einfo = {
-		.ei_type	= LDLM_IBITS,
-		.ei_mode	= it_to_lock_mode(it),
-		.ei_cb_bl	= cb_blocking,
-		.ei_cb_cp	= ldlm_completion_ast,
-	};
-	struct lustre_handle lockh;
-	int rc = 0;
-
-	LASSERT(it);
-
-	CDEBUG(D_DLMTRACE, "(name: %.*s,"DFID") in obj "DFID
-		", intent: %s flags %#Lo\n", op_data->op_namelen,
-		op_data->op_name, PFID(&op_data->op_fid2),
-		PFID(&op_data->op_fid1), ldlm_it2str(it->it_op),
-		it->it_flags);
-
-	lockh.cookie = 0;
-	if (fid_is_sane(&op_data->op_fid2) &&
-	    (it->it_op & (IT_LOOKUP | IT_GETATTR))) {
-		/* We could just return 1 immediately, but since we should only
-		 * be called in revalidate_it if we already have a lock, let's
-		 * verify that. */
-		it->d.lustre.it_lock_handle = 0;
-		rc = mdc_revalidate_lock(exp, it, &op_data->op_fid2, NULL);
-		/* Only return failure if it was not GETATTR by cfid
-		   (from inode_revalidate) */
-		if (rc || op_data->op_namelen != 0)
-			return rc;
-	}
-
-	/* For case if upper layer did not alloc fid, do it now. */
-	if (!fid_is_sane(&op_data->op_fid2) && it->it_op & IT_CREAT) {
-		rc = mdc_fid_alloc(exp, &op_data->op_fid2, op_data);
-		if (rc < 0) {
-			CERROR("Can't alloc new fid, rc %d\n", rc);
-			return rc;
-		}
-	}
-	rc = mdc_enqueue(exp, &einfo, it, op_data, &lockh, lmm, lmmsize, NULL,
-			 extra_lock_flags);
-	if (rc < 0)
-		return rc;
-
-	*reqp = it->d.lustre.it_data;
-	rc = mdc_finish_intent_lock(exp, *reqp, op_data, it, &lockh);
-	return rc;
-}
-
-static int mdc_intent_getattr_async_interpret(const struct lu_env *env,
-					      struct ptlrpc_request *req,
-					      void *args, int rc)
-{
-	struct mdc_getattr_args  *ga = args;
-	struct obd_export	*exp = ga->ga_exp;
-	struct md_enqueue_info   *minfo = ga->ga_minfo;
-	struct ldlm_enqueue_info *einfo = ga->ga_einfo;
-	struct lookup_intent     *it;
-	struct lustre_handle     *lockh;
-	struct obd_device	*obddev;
-	struct ldlm_reply	 *lockrep;
-	__u64		     flags = LDLM_FL_HAS_INTENT;
-
-	it    = &minfo->mi_it;
-	lockh = &minfo->mi_lockh;
-
-	obddev = class_exp2obd(exp);
-
-	mdc_exit_request(&obddev->u.cli);
-	if (OBD_FAIL_CHECK(OBD_FAIL_MDC_GETATTR_ENQUEUE))
-		rc = -ETIMEDOUT;
-
-	rc = ldlm_cli_enqueue_fini(exp, req, einfo->ei_type, 1, einfo->ei_mode,
-				   &flags, NULL, 0, lockh, rc);
-	if (rc < 0) {
-		CERROR("ldlm_cli_enqueue_fini: %d\n", rc);
-		mdc_clear_replay_flag(req, rc);
-		goto out;
-	}
-
-	lockrep = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP);
-	LASSERT(lockrep != NULL);
-
-	lockrep->lock_policy_res2 =
-		ptlrpc_status_ntoh(lockrep->lock_policy_res2);
-
-	rc = mdc_finish_enqueue(exp, req, einfo, it, lockh, rc);
-	if (rc)
-		goto out;
-
-	rc = mdc_finish_intent_lock(exp, req, &minfo->mi_data, it, lockh);
-
-out:
-	kfree(einfo);
-	minfo->mi_cb(req, minfo, rc);
-	return 0;
-}
-
-int mdc_intent_getattr_async(struct obd_export *exp,
-			     struct md_enqueue_info *minfo,
-			     struct ldlm_enqueue_info *einfo)
-{
-	struct md_op_data       *op_data = &minfo->mi_data;
-	struct lookup_intent    *it = &minfo->mi_it;
-	struct ptlrpc_request   *req;
-	struct mdc_getattr_args *ga;
-	struct obd_device       *obddev = class_exp2obd(exp);
-	struct ldlm_res_id       res_id;
-	/*XXX: Both MDS_INODELOCK_LOOKUP and MDS_INODELOCK_UPDATE are needed
-	 *     for statahead currently. Consider CMD in future, such two bits
-	 *     maybe managed by different MDS, should be adjusted then. */
-	ldlm_policy_data_t       policy = {
-					.l_inodebits = { MDS_INODELOCK_LOOKUP |
-							 MDS_INODELOCK_UPDATE }
-				 };
-	int		      rc = 0;
-	__u64		    flags = LDLM_FL_HAS_INTENT;
-
-	CDEBUG(D_DLMTRACE,
-		"name: %.*s in inode "DFID", intent: %s flags %#Lo\n",
-		op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1),
-		ldlm_it2str(it->it_op), it->it_flags);
-
-	fid_build_reg_res_name(&op_data->op_fid1, &res_id);
-	req = mdc_intent_getattr_pack(exp, it, op_data);
-	if (IS_ERR(req))
-		return PTR_ERR(req);
-
-	rc = mdc_enter_request(&obddev->u.cli);
-	if (rc != 0) {
-		ptlrpc_req_finished(req);
-		return rc;
-	}
-
-	rc = ldlm_cli_enqueue(exp, &req, einfo, &res_id, &policy, &flags, NULL,
-			      0, LVB_T_NONE, &minfo->mi_lockh, 1);
-	if (rc < 0) {
-		mdc_exit_request(&obddev->u.cli);
-		ptlrpc_req_finished(req);
-		return rc;
-	}
-
-	CLASSERT(sizeof(*ga) <= sizeof(req->rq_async_args));
-	ga = ptlrpc_req_async_args(req);
-	ga->ga_exp = exp;
-	ga->ga_minfo = minfo;
-	ga->ga_einfo = einfo;
-
-	req->rq_interpret_reply = mdc_intent_getattr_async_interpret;
-	ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
-
-	return 0;
-}
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_reint.c b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
deleted file mode 100644
index 5e9c6296c39d..000000000000
--- a/drivers/staging/lustre/lustre/mdc/mdc_reint.c
+++ /dev/null
@@ -1,483 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_MDC
-
-# include <linux/module.h>
-# include <linux/kernel.h>
-
-#include "../include/obd_class.h"
-#include "mdc_internal.h"
-#include "../include/lustre_fid.h"
-
-/* mdc_setattr does its own semaphore handling */
-static int mdc_reint(struct ptlrpc_request *request,
-		     struct mdc_rpc_lock *rpc_lock,
-		     int level)
-{
-	int rc;
-
-	request->rq_send_state = level;
-
-	mdc_get_rpc_lock(rpc_lock, NULL);
-	rc = ptlrpc_queue_wait(request);
-	mdc_put_rpc_lock(rpc_lock, NULL);
-	if (rc)
-		CDEBUG(D_INFO, "error in handling %d\n", rc);
-	else if (!req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY))
-		rc = -EPROTO;
-
-	return rc;
-}
-
-/* Find and cancel locally locks matched by inode @bits & @mode in the resource
- * found by @fid. Found locks are added into @cancel list. Returns the amount of
- * locks added to @cancels list. */
-int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
-			    struct list_head *cancels, ldlm_mode_t mode,
-			    __u64 bits)
-{
-	struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
-	ldlm_policy_data_t policy = {};
-	struct ldlm_res_id res_id;
-	struct ldlm_resource *res;
-	int count;
-
-	/* Return, i.e. cancel nothing, only if ELC is supported (flag in
-	 * export) but disabled through procfs (flag in NS).
-	 *
-	 * This distinguishes from a case when ELC is not supported originally,
-	 * when we still want to cancel locks in advance and just cancel them
-	 * locally, without sending any RPC. */
-	if (exp_connect_cancelset(exp) && !ns_connect_cancelset(ns))
-		return 0;
-
-	fid_build_reg_res_name(fid, &res_id);
-	res = ldlm_resource_get(exp->exp_obd->obd_namespace,
-				NULL, &res_id, 0, 0);
-	if (res == NULL)
-		return 0;
-	LDLM_RESOURCE_ADDREF(res);
-	/* Initialize ibits lock policy. */
-	policy.l_inodebits.bits = bits;
-	count = ldlm_cancel_resource_local(res, cancels, &policy,
-					   mode, 0, 0, NULL);
-	LDLM_RESOURCE_DELREF(res);
-	ldlm_resource_putref(res);
-	return count;
-}
-
-int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
-		void *ea, int ealen, void *ea2, int ea2len,
-		struct ptlrpc_request **request, struct md_open_data **mod)
-{
-	LIST_HEAD(cancels);
-	struct ptlrpc_request *req;
-	struct mdc_rpc_lock *rpc_lock;
-	struct obd_device *obd = exp->exp_obd;
-	int count = 0, rc;
-	__u64 bits;
-
-	LASSERT(op_data != NULL);
-
-	bits = MDS_INODELOCK_UPDATE;
-	if (op_data->op_attr.ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID))
-		bits |= MDS_INODELOCK_LOOKUP;
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)) &&
-	    !OBD_FAIL_CHECK(OBD_FAIL_LDLM_BL_CALLBACK_NET))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX, bits);
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_REINT_SETATTR);
-	if (req == NULL) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	if ((op_data->op_flags & (MF_SOM_CHANGE | MF_EPOCH_OPEN)) == 0)
-		req_capsule_set_size(&req->rq_pill, &RMF_MDT_EPOCH, RCL_CLIENT,
-				     0);
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT, ealen);
-	req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_CLIENT,
-			     ea2len);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	rpc_lock = obd->u.cli.cl_rpc_lock;
-
-	if (op_data->op_attr.ia_valid & (ATTR_MTIME | ATTR_CTIME))
-		CDEBUG(D_INODE, "setting mtime "CFS_TIME_T
-		       ", ctime "CFS_TIME_T"\n",
-		       LTIME_S(op_data->op_attr.ia_mtime),
-		       LTIME_S(op_data->op_attr.ia_ctime));
-	mdc_setattr_pack(req, op_data, ea, ealen, ea2, ea2len);
-
-	ptlrpc_request_set_replen(req);
-	if (mod && (op_data->op_flags & MF_EPOCH_OPEN) &&
-	    req->rq_import->imp_replayable) {
-		LASSERT(*mod == NULL);
-
-		*mod = obd_mod_alloc();
-		if (*mod == NULL) {
-			DEBUG_REQ(D_ERROR, req, "Can't allocate md_open_data");
-		} else {
-			req->rq_replay = 1;
-			req->rq_cb_data = *mod;
-			(*mod)->mod_open_req = req;
-			req->rq_commit_cb = mdc_commit_open;
-			(*mod)->mod_is_create = true;
-			/**
-			 * Take an extra reference on \var mod, it protects \var
-			 * mod from being freed on eviction (commit callback is
-			 * called despite rq_replay flag).
-			 * Will be put on mdc_done_writing().
-			 */
-			obd_mod_get(*mod);
-		}
-	}
-
-	rc = mdc_reint(req, rpc_lock, LUSTRE_IMP_FULL);
-
-	/* Save the obtained info in the original RPC for the replay case. */
-	if (rc == 0 && (op_data->op_flags & MF_EPOCH_OPEN)) {
-		struct mdt_ioepoch *epoch;
-		struct mdt_body  *body;
-
-		epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
-		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		LASSERT(epoch != NULL);
-		LASSERT(body != NULL);
-		epoch->handle = body->handle;
-		epoch->ioepoch = body->ioepoch;
-		req->rq_replay_cb = mdc_replay_open;
-	/** bug 3633, open may be committed and estale answer is not error */
-	} else if (rc == -ESTALE && (op_data->op_flags & MF_SOM_CHANGE)) {
-		rc = 0;
-	} else if (rc == -ERESTARTSYS) {
-		rc = 0;
-	}
-	*request = req;
-	if (rc && req->rq_commit_cb) {
-		/* Put an extra reference on \var mod on error case. */
-		if (mod != NULL && *mod != NULL)
-			obd_mod_put(*mod);
-		req->rq_commit_cb(req);
-	}
-	return rc;
-}
-
-int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
-	       const void *data, int datalen, int mode, __u32 uid, __u32 gid,
-	       cfs_cap_t cap_effective, __u64 rdev,
-	       struct ptlrpc_request **request)
-{
-	struct ptlrpc_request *req;
-	int level, rc;
-	int count, resends = 0;
-	struct obd_import *import = exp->exp_obd->u.cli.cl_import;
-	int generation = import->imp_generation;
-	LIST_HEAD(cancels);
-
-	/* For case if upper layer did not alloc fid, do it now. */
-	if (!fid_is_sane(&op_data->op_fid2)) {
-		/*
-		 * mdc_fid_alloc() may return errno 1 in case of switch to new
-		 * sequence, handle this.
-		 */
-		rc = mdc_fid_alloc(exp, &op_data->op_fid2, op_data);
-		if (rc < 0) {
-			CERROR("Can't alloc new fid, rc %d\n", rc);
-			return rc;
-		}
-	}
-
-rebuild:
-	count = 0;
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_REINT_CREATE_RMT_ACL);
-	if (req == NULL) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-	req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
-			     data && datalen ? datalen : 0);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	/*
-	 * mdc_create_pack() fills msg->bufs[1] with name and msg->bufs[2] with
-	 * tgt, for symlinks or lov MD data.
-	 */
-	mdc_create_pack(req, op_data, data, datalen, mode, uid,
-			gid, cap_effective, rdev);
-
-	ptlrpc_request_set_replen(req);
-
-	/* ask ptlrpc not to resend on EINPROGRESS since we have our own retry
-	 * logic here */
-	req->rq_no_retry_einprogress = 1;
-
-	if (resends) {
-		req->rq_generation_set = 1;
-		req->rq_import_generation = generation;
-		req->rq_sent = get_seconds() + resends;
-	}
-	level = LUSTRE_IMP_FULL;
- resend:
-	rc = mdc_reint(req, exp->exp_obd->u.cli.cl_rpc_lock, level);
-
-	/* Resend if we were told to. */
-	if (rc == -ERESTARTSYS) {
-		level = LUSTRE_IMP_RECOVER;
-		goto resend;
-	} else if (rc == -EINPROGRESS) {
-		/* Retry create infinitely until succeed or get other
-		 * error code. */
-		ptlrpc_req_finished(req);
-		resends++;
-
-		CDEBUG(D_HA, "%s: resend:%d create on "DFID"/"DFID"\n",
-		       exp->exp_obd->obd_name, resends,
-		       PFID(&op_data->op_fid1), PFID(&op_data->op_fid2));
-
-		if (generation == import->imp_generation) {
-			goto rebuild;
-		} else {
-			CDEBUG(D_HA, "resend cross eviction\n");
-			return -EIO;
-		}
-	} else if (rc == 0) {
-		struct mdt_body *body;
-		struct lustre_capa *capa;
-
-		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		LASSERT(body);
-		if (body->valid & OBD_MD_FLMDSCAPA) {
-			capa = req_capsule_server_get(&req->rq_pill,
-						      &RMF_CAPA1);
-			if (capa == NULL)
-				rc = -EPROTO;
-		}
-	}
-
-	*request = req;
-	return rc;
-}
-
-int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
-	       struct ptlrpc_request **request)
-{
-	LIST_HEAD(cancels);
-	struct obd_device *obd = class_exp2obd(exp);
-	struct ptlrpc_request *req = *request;
-	int count = 0, rc;
-
-	LASSERT(req == NULL);
-
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)) &&
-	    !OBD_FAIL_CHECK(OBD_FAIL_LDLM_BL_CALLBACK_NET))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID3) &&
-	    (fid_is_sane(&op_data->op_fid3)) &&
-	    !OBD_FAIL_CHECK(OBD_FAIL_LDLM_BL_CALLBACK_NET))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid3,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_FULL);
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_REINT_UNLINK);
-	if (req == NULL) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_unlink_pack(req, op_data);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_easize);
-	req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_cookiesize);
-	ptlrpc_request_set_replen(req);
-
-	*request = req;
-
-	rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
-	if (rc == -ERESTARTSYS)
-		rc = 0;
-	return rc;
-}
-
-int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
-	     struct ptlrpc_request **request)
-{
-	LIST_HEAD(cancels);
-	struct obd_device *obd = exp->exp_obd;
-	struct ptlrpc_request *req;
-	int count = 0, rc;
-
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID2) &&
-	    (fid_is_sane(&op_data->op_fid2)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid2,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid1,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_UPDATE);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_REINT_LINK);
-	if (req == NULL) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2);
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_link_pack(req, op_data);
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
-	*request = req;
-	if (rc == -ERESTARTSYS)
-		rc = 0;
-
-	return rc;
-}
-
-int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
-	       const char *old, int oldlen, const char *new, int newlen,
-	       struct ptlrpc_request **request)
-{
-	LIST_HEAD(cancels);
-	struct obd_device *obd = exp->exp_obd;
-	struct ptlrpc_request *req;
-	int count = 0, rc;
-
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID1) &&
-	    (fid_is_sane(&op_data->op_fid1)))
-		count = mdc_resource_get_unused(exp, &op_data->op_fid1,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID2) &&
-	    (fid_is_sane(&op_data->op_fid2)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid2,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_UPDATE);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID3) &&
-	    (fid_is_sane(&op_data->op_fid3)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid3,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_LOOKUP);
-	if ((op_data->op_flags & MF_MDC_CANCEL_FID4) &&
-	     (fid_is_sane(&op_data->op_fid4)))
-		count += mdc_resource_get_unused(exp, &op_data->op_fid4,
-						 &cancels, LCK_EX,
-						 MDS_INODELOCK_FULL);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_REINT_RENAME);
-	if (req == NULL) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2);
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, oldlen + 1);
-	req_capsule_set_size(&req->rq_pill, &RMF_SYMTGT, RCL_CLIENT, newlen+1);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	if (exp_connect_cancelset(exp) && req)
-		ldlm_cli_cancel_list(&cancels, count, req, 0);
-
-	mdc_rename_pack(req, op_data, old, oldlen, new, newlen);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_easize);
-	req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_cookiesize);
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_reint(req, obd->u.cli.cl_rpc_lock, LUSTRE_IMP_FULL);
-	*request = req;
-	if (rc == -ERESTARTSYS)
-		rc = 0;
-
-	return rc;
-}
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
deleted file mode 100644
index 204d51262560..000000000000
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ /dev/null
@@ -1,2724 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_MDC
-
-# include <linux/module.h>
-# include <linux/pagemap.h>
-# include <linux/miscdevice.h>
-# include <linux/init.h>
-# include <linux/utsname.h>
-
-#include "../include/lustre_acl.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_fid.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre_param.h"
-#include "../include/lustre_log.h"
-
-#include "mdc_internal.h"
-
-#define REQUEST_MINOR 244
-
-struct mdc_renew_capa_args {
-	struct obd_capa	*ra_oc;
-	renew_capa_cb_t	 ra_cb;
-};
-
-static int mdc_cleanup(struct obd_device *obd);
-
-static int mdc_unpack_capa(struct obd_export *exp, struct ptlrpc_request *req,
-		    const struct req_msg_field *field, struct obd_capa **oc)
-{
-	struct lustre_capa *capa;
-	struct obd_capa *c;
-
-	/* swabbed already in mdc_enqueue */
-	capa = req_capsule_server_get(&req->rq_pill, field);
-	if (capa == NULL)
-		return -EPROTO;
-
-	c = alloc_capa(CAPA_SITE_CLIENT);
-	if (IS_ERR(c)) {
-		CDEBUG(D_INFO, "alloc capa failed!\n");
-		return PTR_ERR(c);
-	}
-
-	c->c_capa = *capa;
-	*oc = c;
-	return 0;
-}
-
-static inline int mdc_queue_wait(struct ptlrpc_request *req)
-{
-	struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
-	int rc;
-
-	/* mdc_enter_request() ensures that this client has no more
-	 * than cl_max_rpcs_in_flight RPCs simultaneously inf light
-	 * against an MDT. */
-	rc = mdc_enter_request(cli);
-	if (rc != 0)
-		return rc;
-
-	rc = ptlrpc_queue_wait(req);
-	mdc_exit_request(cli);
-
-	return rc;
-}
-
-/* Helper that implements most of mdc_getstatus and signal_completed_replay. */
-/* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
-static int send_getstatus(struct obd_import *imp, struct lu_fid *rootfid,
-			  struct obd_capa **pc, int level, int msg_flags)
-{
-	struct ptlrpc_request *req;
-	struct mdt_body       *body;
-	int		    rc;
-
-	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_GETSTATUS,
-					LUSTRE_MDS_VERSION, MDS_GETSTATUS);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_pack_body(req, NULL, NULL, 0, 0, -1, 0);
-	lustre_msg_add_flags(req->rq_reqmsg, msg_flags);
-	req->rq_send_state = level;
-
-	ptlrpc_request_set_replen(req);
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	if (body->valid & OBD_MD_FLMDSCAPA) {
-		rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, pc);
-		if (rc)
-			goto out;
-	}
-
-	*rootfid = body->fid1;
-	CDEBUG(D_NET,
-	       "root fid="DFID", last_committed=%llu\n",
-	       PFID(rootfid),
-	       lustre_msg_get_last_committed(req->rq_repmsg));
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-/* This should be mdc_get_info("rootfid") */
-static int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid,
-		  struct obd_capa **pc)
-{
-	return send_getstatus(class_exp2cliimp(exp), rootfid, pc,
-			      LUSTRE_IMP_FULL, 0);
-}
-
-/*
- * This function now is known to always saying that it will receive 4 buffers
- * from server. Even for cases when acl_size and md_size is zero, RPC header
- * will contain 4 fields and RPC itself will contain zero size fields. This is
- * because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed
- * and thus zero, it shrinks it, making zero size. The same story about
- * md_size. And this is course of problem when client waits for smaller number
- * of fields. This issue will be fixed later when client gets aware of RPC
- * layouts.  --umka
- */
-static int mdc_getattr_common(struct obd_export *exp,
-			      struct ptlrpc_request *req)
-{
-	struct req_capsule *pill = &req->rq_pill;
-	struct mdt_body    *body;
-	void	       *eadata;
-	int		 rc;
-
-	/* Request message already built. */
-	rc = ptlrpc_queue_wait(req);
-	if (rc != 0)
-		return rc;
-
-	/* sanity check for the reply */
-	body = req_capsule_server_get(pill, &RMF_MDT_BODY);
-	if (body == NULL)
-		return -EPROTO;
-
-	CDEBUG(D_NET, "mode: %o\n", body->mode);
-
-	if (body->eadatasize != 0) {
-		mdc_update_max_ea_from_body(exp, body);
-
-		eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
-						      body->eadatasize);
-		if (eadata == NULL)
-			return -EPROTO;
-	}
-
-	if (body->valid & OBD_MD_FLRMTPERM) {
-		struct mdt_remote_perm *perm;
-
-		LASSERT(client_is_remote(exp));
-		perm = req_capsule_server_swab_get(pill, &RMF_ACL,
-						lustre_swab_mdt_remote_perm);
-		if (perm == NULL)
-			return -EPROTO;
-	}
-
-	if (body->valid & OBD_MD_FLMDSCAPA) {
-		struct lustre_capa *capa;
-
-		capa = req_capsule_server_get(pill, &RMF_CAPA1);
-		if (capa == NULL)
-			return -EPROTO;
-	}
-
-	return 0;
-}
-
-static int mdc_getattr(struct obd_export *exp, struct md_op_data *op_data,
-		struct ptlrpc_request **request)
-{
-	struct ptlrpc_request *req;
-	int		    rc;
-
-	/* Single MDS without an LMV case */
-	if (op_data->op_flags & MF_GET_MDT_IDX) {
-		op_data->op_mds = 0;
-		return 0;
-	}
-	*request = NULL;
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
-		      op_data->op_valid, op_data->op_mode, -1, 0);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     op_data->op_mode);
-	if (op_data->op_valid & OBD_MD_FLRMTPERM) {
-		LASSERT(client_is_remote(exp));
-		req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
-				     sizeof(struct mdt_remote_perm));
-	}
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_getattr_common(exp, req);
-	if (rc)
-		ptlrpc_req_finished(req);
-	else
-		*request = req;
-	return rc;
-}
-
-static int mdc_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
-		     struct ptlrpc_request **request)
-{
-	struct ptlrpc_request *req;
-	int		    rc;
-
-	*request = NULL;
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_GETATTR_NAME);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-			     op_data->op_namelen + 1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
-		      op_data->op_valid, op_data->op_mode,
-		      op_data->op_suppgids[0], 0);
-
-	if (op_data->op_name) {
-		char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-
-		LASSERT(strnlen(op_data->op_name, op_data->op_namelen) ==
-				op_data->op_namelen);
-		memcpy(name, op_data->op_name, op_data->op_namelen);
-	}
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     op_data->op_mode);
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_getattr_common(exp, req);
-	if (rc)
-		ptlrpc_req_finished(req);
-	else
-		*request = req;
-	return rc;
-}
-
-static int mdc_is_subdir(struct obd_export *exp,
-			 const struct lu_fid *pfid,
-			 const struct lu_fid *cfid,
-			 struct ptlrpc_request **request)
-{
-	struct ptlrpc_request  *req;
-	int		     rc;
-
-	*request = NULL;
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
-					&RQF_MDS_IS_SUBDIR, LUSTRE_MDS_VERSION,
-					MDS_IS_SUBDIR);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_is_subdir_pack(req, pfid, cfid, 0);
-	ptlrpc_request_set_replen(req);
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc && rc != -EREMOTE)
-		ptlrpc_req_finished(req);
-	else
-		*request = req;
-	return rc;
-}
-
-static int mdc_xattr_common(struct obd_export *exp,
-			    const struct req_format *fmt,
-			    const struct lu_fid *fid,
-			    struct obd_capa *oc, int opcode, u64 valid,
-			    const char *xattr_name, const char *input,
-			    int input_size, int output_size, int flags,
-			    __u32 suppgid, struct ptlrpc_request **request)
-{
-	struct ptlrpc_request *req;
-	int   xattr_namelen = 0;
-	char *tmp;
-	int   rc;
-
-	*request = NULL;
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, oc);
-	if (xattr_name) {
-		xattr_namelen = strlen(xattr_name) + 1;
-		req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT,
-				     xattr_namelen);
-	}
-	if (input_size) {
-		LASSERT(input);
-		req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT,
-				     input_size);
-	}
-
-	/* Flush local XATTR locks to get rid of a possible cancel RPC */
-	if (opcode == MDS_REINT && fid_is_sane(fid) &&
-	    exp->exp_connect_data.ocd_ibits_known & MDS_INODELOCK_XATTR) {
-		LIST_HEAD(cancels);
-		int count;
-
-		/* Without that packing would fail */
-		if (input_size == 0)
-			req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
-					     RCL_CLIENT, 0);
-
-		count = mdc_resource_get_unused(exp, fid,
-						&cancels, LCK_EX,
-						MDS_INODELOCK_XATTR);
-
-		rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
-		if (rc) {
-			ptlrpc_request_free(req);
-			return rc;
-		}
-	} else {
-		rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode);
-		if (rc) {
-			ptlrpc_request_free(req);
-			return rc;
-		}
-	}
-
-	if (opcode == MDS_REINT) {
-		struct mdt_rec_setxattr *rec;
-
-		CLASSERT(sizeof(struct mdt_rec_setxattr) ==
-			 sizeof(struct mdt_rec_reint));
-		rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
-		rec->sx_opcode = REINT_SETXATTR;
-		rec->sx_fsuid  = from_kuid(&init_user_ns, current_fsuid());
-		rec->sx_fsgid  = from_kgid(&init_user_ns, current_fsgid());
-		rec->sx_cap    = cfs_curproc_cap_pack();
-		rec->sx_suppgid1 = suppgid;
-		rec->sx_suppgid2 = -1;
-		rec->sx_fid    = *fid;
-		rec->sx_valid  = valid | OBD_MD_FLCTIME;
-		rec->sx_time   = get_seconds();
-		rec->sx_size   = output_size;
-		rec->sx_flags  = flags;
-
-		mdc_pack_capa(req, &RMF_CAPA1, oc);
-	} else {
-		mdc_pack_body(req, fid, oc, valid, output_size, suppgid, flags);
-	}
-
-	if (xattr_name) {
-		tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME);
-		memcpy(tmp, xattr_name, xattr_namelen);
-	}
-	if (input_size) {
-		tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
-		memcpy(tmp, input, input_size);
-	}
-
-	if (req_capsule_has_field(&req->rq_pill, &RMF_EADATA, RCL_SERVER))
-		req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
-				     RCL_SERVER, output_size);
-	ptlrpc_request_set_replen(req);
-
-	/* make rpc */
-	if (opcode == MDS_REINT)
-		mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
-
-	rc = ptlrpc_queue_wait(req);
-
-	if (opcode == MDS_REINT)
-		mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL);
-
-	if (rc)
-		ptlrpc_req_finished(req);
-	else
-		*request = req;
-	return rc;
-}
-
-static int mdc_setxattr(struct obd_export *exp, const struct lu_fid *fid,
-		 struct obd_capa *oc, u64 valid, const char *xattr_name,
-		 const char *input, int input_size, int output_size,
-		 int flags, __u32 suppgid, struct ptlrpc_request **request)
-{
-	return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR,
-				fid, oc, MDS_REINT, valid, xattr_name,
-				input, input_size, output_size, flags,
-				suppgid, request);
-}
-
-static int mdc_getxattr(struct obd_export *exp, const struct lu_fid *fid,
-		 struct obd_capa *oc, u64 valid, const char *xattr_name,
-		 const char *input, int input_size, int output_size,
-		 int flags, struct ptlrpc_request **request)
-{
-	return mdc_xattr_common(exp, &RQF_MDS_GETXATTR,
-				fid, oc, MDS_GETXATTR, valid, xattr_name,
-				input, input_size, output_size, flags,
-				-1, request);
-}
-
-#ifdef CONFIG_FS_POSIX_ACL
-static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
-{
-	struct req_capsule     *pill = &req->rq_pill;
-	struct mdt_body	*body = md->body;
-	struct posix_acl       *acl;
-	void		   *buf;
-	int		     rc;
-
-	if (!body->aclsize)
-		return 0;
-
-	buf = req_capsule_server_sized_get(pill, &RMF_ACL, body->aclsize);
-
-	if (!buf)
-		return -EPROTO;
-
-	acl = posix_acl_from_xattr(&init_user_ns, buf, body->aclsize);
-	if (acl == NULL)
-		return 0;
-
-	if (IS_ERR(acl)) {
-		rc = PTR_ERR(acl);
-		CERROR("convert xattr to acl: %d\n", rc);
-		return rc;
-	}
-
-	rc = posix_acl_valid(acl);
-	if (rc) {
-		CERROR("validate acl: %d\n", rc);
-		posix_acl_release(acl);
-		return rc;
-	}
-
-	md->posix_acl = acl;
-	return 0;
-}
-#else
-#define mdc_unpack_acl(req, md) 0
-#endif
-
-int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req,
-		      struct obd_export *dt_exp, struct obd_export *md_exp,
-		      struct lustre_md *md)
-{
-	struct req_capsule *pill = &req->rq_pill;
-	int rc;
-
-	LASSERT(md);
-	memset(md, 0, sizeof(*md));
-
-	md->body = req_capsule_server_get(pill, &RMF_MDT_BODY);
-	LASSERT(md->body != NULL);
-
-	if (md->body->valid & OBD_MD_FLEASIZE) {
-		int lmmsize;
-		struct lov_mds_md *lmm;
-
-		if (!S_ISREG(md->body->mode)) {
-			CDEBUG(D_INFO,
-			       "OBD_MD_FLEASIZE set, should be a regular file, but is not\n");
-			rc = -EPROTO;
-			goto out;
-		}
-
-		if (md->body->eadatasize == 0) {
-			CDEBUG(D_INFO,
-			       "OBD_MD_FLEASIZE set, but eadatasize 0\n");
-			rc = -EPROTO;
-			goto out;
-		}
-		lmmsize = md->body->eadatasize;
-		lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize);
-		if (!lmm) {
-			rc = -EPROTO;
-			goto out;
-		}
-
-		rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize);
-		if (rc < 0)
-			goto out;
-
-		if (rc < sizeof(*md->lsm)) {
-			CDEBUG(D_INFO,
-			       "lsm size too small: rc < sizeof (*md->lsm) (%d < %d)\n",
-			       rc, (int)sizeof(*md->lsm));
-			rc = -EPROTO;
-			goto out;
-		}
-
-	} else if (md->body->valid & OBD_MD_FLDIREA) {
-		int lmvsize;
-		struct lov_mds_md *lmv;
-
-		if (!S_ISDIR(md->body->mode)) {
-			CDEBUG(D_INFO,
-			       "OBD_MD_FLDIREA set, should be a directory, but is not\n");
-			rc = -EPROTO;
-			goto out;
-		}
-
-		if (md->body->eadatasize == 0) {
-			CDEBUG(D_INFO,
-			       "OBD_MD_FLDIREA is set, but eadatasize 0\n");
-			return -EPROTO;
-		}
-		if (md->body->valid & OBD_MD_MEA) {
-			lmvsize = md->body->eadatasize;
-			lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
-							   lmvsize);
-			if (!lmv) {
-				rc = -EPROTO;
-				goto out;
-			}
-
-			rc = obd_unpackmd(md_exp, (void *)&md->mea, lmv,
-					  lmvsize);
-			if (rc < 0)
-				goto out;
-
-			if (rc < sizeof(*md->mea)) {
-				CDEBUG(D_INFO,
-				       "size too small: rc < sizeof(*md->mea) (%d < %d)\n",
-					rc, (int)sizeof(*md->mea));
-				rc = -EPROTO;
-				goto out;
-			}
-		}
-	}
-	rc = 0;
-
-	if (md->body->valid & OBD_MD_FLRMTPERM) {
-		/* remote permission */
-		LASSERT(client_is_remote(exp));
-		md->remote_perm = req_capsule_server_swab_get(pill, &RMF_ACL,
-						lustre_swab_mdt_remote_perm);
-		if (!md->remote_perm) {
-			rc = -EPROTO;
-			goto out;
-		}
-	} else if (md->body->valid & OBD_MD_FLACL) {
-		/* for ACL, it's possible that FLACL is set but aclsize is zero.
-		 * only when aclsize != 0 there's an actual segment for ACL
-		 * in reply buffer.
-		 */
-		if (md->body->aclsize) {
-			rc = mdc_unpack_acl(req, md);
-			if (rc)
-				goto out;
-#ifdef CONFIG_FS_POSIX_ACL
-		} else {
-			md->posix_acl = NULL;
-#endif
-		}
-	}
-	if (md->body->valid & OBD_MD_FLMDSCAPA) {
-		struct obd_capa *oc = NULL;
-
-		rc = mdc_unpack_capa(NULL, req, &RMF_CAPA1, &oc);
-		if (rc)
-			goto out;
-		md->mds_capa = oc;
-	}
-
-	if (md->body->valid & OBD_MD_FLOSSCAPA) {
-		struct obd_capa *oc = NULL;
-
-		rc = mdc_unpack_capa(NULL, req, &RMF_CAPA2, &oc);
-		if (rc)
-			goto out;
-		md->oss_capa = oc;
-	}
-
-out:
-	if (rc) {
-		if (md->oss_capa) {
-			capa_put(md->oss_capa);
-			md->oss_capa = NULL;
-		}
-		if (md->mds_capa) {
-			capa_put(md->mds_capa);
-			md->mds_capa = NULL;
-		}
-#ifdef CONFIG_FS_POSIX_ACL
-		posix_acl_release(md->posix_acl);
-#endif
-		if (md->lsm)
-			obd_free_memmd(dt_exp, &md->lsm);
-	}
-	return rc;
-}
-
-int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md)
-{
-	return 0;
-}
-
-/**
- * Handles both OPEN and SETATTR RPCs for OPEN-CLOSE and SETATTR-DONE_WRITING
- * RPC chains.
- */
-void mdc_replay_open(struct ptlrpc_request *req)
-{
-	struct md_open_data *mod = req->rq_cb_data;
-	struct ptlrpc_request *close_req;
-	struct obd_client_handle *och;
-	struct lustre_handle old;
-	struct mdt_body *body;
-
-	if (mod == NULL) {
-		DEBUG_REQ(D_ERROR, req,
-			  "Can't properly replay without open data.");
-		return;
-	}
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(body != NULL);
-
-	och = mod->mod_och;
-	if (och != NULL) {
-		struct lustre_handle *file_fh;
-
-		LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC);
-
-		file_fh = &och->och_fh;
-		CDEBUG(D_HA, "updating handle from %#llx to %#llx\n",
-		       file_fh->cookie, body->handle.cookie);
-		old = *file_fh;
-		*file_fh = body->handle;
-	}
-	close_req = mod->mod_close_req;
-	if (close_req != NULL) {
-		__u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg);
-		struct mdt_ioepoch *epoch;
-
-		LASSERT(opc == MDS_CLOSE || opc == MDS_DONE_WRITING);
-		epoch = req_capsule_client_get(&close_req->rq_pill,
-					       &RMF_MDT_EPOCH);
-		LASSERT(epoch);
-
-		if (och != NULL)
-			LASSERT(!memcmp(&old, &epoch->handle, sizeof(old)));
-		DEBUG_REQ(D_HA, close_req, "updating close body with new fh");
-		epoch->handle = body->handle;
-	}
-}
-
-void mdc_commit_open(struct ptlrpc_request *req)
-{
-	struct md_open_data *mod = req->rq_cb_data;
-
-	if (mod == NULL)
-		return;
-
-	/**
-	 * No need to touch md_open_data::mod_och, it holds a reference on
-	 * \var mod and will zero references to each other, \var mod will be
-	 * freed after that when md_open_data::mod_och will put the reference.
-	 */
-
-	/**
-	 * Do not let open request to disappear as it still may be needed
-	 * for close rpc to happen (it may happen on evict only, otherwise
-	 * ptlrpc_request::rq_replay does not let mdc_commit_open() to be
-	 * called), just mark this rpc as committed to distinguish these 2
-	 * cases, see mdc_close() for details. The open request reference will
-	 * be put along with freeing \var mod.
-	 */
-	ptlrpc_request_addref(req);
-	spin_lock(&req->rq_lock);
-	req->rq_committed = 1;
-	spin_unlock(&req->rq_lock);
-	req->rq_cb_data = NULL;
-	obd_mod_put(mod);
-}
-
-int mdc_set_open_replay_data(struct obd_export *exp,
-			     struct obd_client_handle *och,
-			     struct lookup_intent *it)
-{
-	struct md_open_data   *mod;
-	struct mdt_rec_create *rec;
-	struct mdt_body       *body;
-	struct ptlrpc_request *open_req = it->d.lustre.it_data;
-	struct obd_import     *imp = open_req->rq_import;
-
-	if (!open_req->rq_replay)
-		return 0;
-
-	rec = req_capsule_client_get(&open_req->rq_pill, &RMF_REC_REINT);
-	body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY);
-	LASSERT(rec != NULL);
-	/* Incoming message in my byte order (it's been swabbed). */
-	/* Outgoing messages always in my byte order. */
-	LASSERT(body != NULL);
-
-	/* Only if the import is replayable, we set replay_open data */
-	if (och && imp->imp_replayable) {
-		mod = obd_mod_alloc();
-		if (mod == NULL) {
-			DEBUG_REQ(D_ERROR, open_req,
-				  "Can't allocate md_open_data");
-			return 0;
-		}
-
-		/**
-		 * Take a reference on \var mod, to be freed on mdc_close().
-		 * It protects \var mod from being freed on eviction (commit
-		 * callback is called despite rq_replay flag).
-		 * Another reference for \var och.
-		 */
-		obd_mod_get(mod);
-		obd_mod_get(mod);
-
-		spin_lock(&open_req->rq_lock);
-		och->och_mod = mod;
-		mod->mod_och = och;
-		mod->mod_is_create = it_disposition(it, DISP_OPEN_CREATE) ||
-				     it_disposition(it, DISP_OPEN_STRIPE);
-		mod->mod_open_req = open_req;
-		open_req->rq_cb_data = mod;
-		open_req->rq_commit_cb = mdc_commit_open;
-		spin_unlock(&open_req->rq_lock);
-	}
-
-	rec->cr_fid2 = body->fid1;
-	rec->cr_ioepoch = body->ioepoch;
-	rec->cr_old_handle.cookie = body->handle.cookie;
-	open_req->rq_replay_cb = mdc_replay_open;
-	if (!fid_is_sane(&body->fid1)) {
-		DEBUG_REQ(D_ERROR, open_req,
-			  "Saving replay request with insane fid");
-		LBUG();
-	}
-
-	DEBUG_REQ(D_RPCTRACE, open_req, "Set up open replay data");
-	return 0;
-}
-
-static void mdc_free_open(struct md_open_data *mod)
-{
-	int committed = 0;
-
-	if (mod->mod_is_create == 0 &&
-	    imp_connect_disp_stripe(mod->mod_open_req->rq_import))
-		committed = 1;
-
-	LASSERT(mod->mod_open_req->rq_replay == 0);
-
-	DEBUG_REQ(D_RPCTRACE, mod->mod_open_req, "free open request\n");
-
-	ptlrpc_request_committed(mod->mod_open_req, committed);
-	if (mod->mod_close_req)
-		ptlrpc_request_committed(mod->mod_close_req, committed);
-}
-
-int mdc_clear_open_replay_data(struct obd_export *exp,
-			       struct obd_client_handle *och)
-{
-	struct md_open_data *mod = och->och_mod;
-
-	/**
-	 * It is possible to not have \var mod in a case of eviction between
-	 * lookup and ll_file_open().
-	 **/
-	if (mod == NULL)
-		return 0;
-
-	LASSERT(mod != LP_POISON);
-	LASSERT(mod->mod_open_req != NULL);
-	mdc_free_open(mod);
-
-	mod->mod_och = NULL;
-	och->och_mod = NULL;
-	obd_mod_put(mod);
-
-	return 0;
-}
-
-/* Prepares the request for the replay by the given reply */
-static void mdc_close_handle_reply(struct ptlrpc_request *req,
-				   struct md_op_data *op_data, int rc) {
-	struct mdt_body  *repbody;
-	struct mdt_ioepoch *epoch;
-
-	if (req && rc == -EAGAIN) {
-		repbody = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
-
-		epoch->flags |= MF_SOM_AU;
-		if (repbody->valid & OBD_MD_FLGETATTRLOCK)
-			op_data->op_flags |= MF_GETATTR_LOCK;
-	}
-}
-
-static int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
-		     struct md_open_data *mod, struct ptlrpc_request **request)
-{
-	struct obd_device     *obd = class_exp2obd(exp);
-	struct ptlrpc_request *req;
-	struct req_format     *req_fmt;
-	int                    rc;
-	int		       saved_rc = 0;
-
-
-	req_fmt = &RQF_MDS_CLOSE;
-	if (op_data->op_bias & MDS_HSM_RELEASE) {
-		req_fmt = &RQF_MDS_RELEASE_CLOSE;
-
-		/* allocate a FID for volatile file */
-		rc = mdc_fid_alloc(exp, &op_data->op_fid2, op_data);
-		if (rc < 0) {
-			CERROR("%s: "DFID" failed to allocate FID: %d\n",
-			       obd->obd_name, PFID(&op_data->op_fid1), rc);
-			/* save the errcode and proceed to close */
-			saved_rc = rc;
-		}
-	}
-
-	*request = NULL;
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), req_fmt);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	/* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a
-	 * portal whose threads are not taking any DLM locks and are therefore
-	 * always progressing */
-	req->rq_request_portal = MDS_READPAGE_PORTAL;
-	ptlrpc_at_set_req_timeout(req);
-
-	/* Ensure that this close's handle is fixed up during replay. */
-	if (likely(mod != NULL)) {
-		LASSERTF(mod->mod_open_req != NULL &&
-			 mod->mod_open_req->rq_type != LI_POISON,
-			 "POISONED open %p!\n", mod->mod_open_req);
-
-		mod->mod_close_req = req;
-
-		DEBUG_REQ(D_HA, mod->mod_open_req, "matched open");
-		/* We no longer want to preserve this open for replay even
-		 * though the open was committed. b=3632, b=3633 */
-		spin_lock(&mod->mod_open_req->rq_lock);
-		mod->mod_open_req->rq_replay = 0;
-		spin_unlock(&mod->mod_open_req->rq_lock);
-	} else {
-		 CDEBUG(D_HA,
-			"couldn't find open req; expecting close error\n");
-	}
-
-	mdc_close_pack(req, op_data);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_easize);
-	req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
-			     obd->u.cli.cl_default_mds_cookiesize);
-
-	ptlrpc_request_set_replen(req);
-
-	mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
-	rc = ptlrpc_queue_wait(req);
-	mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
-
-	if (req->rq_repmsg == NULL) {
-		CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req,
-		       req->rq_status);
-		if (rc == 0)
-			rc = req->rq_status ?: -EIO;
-	} else if (rc == 0 || rc == -EAGAIN) {
-		struct mdt_body *body;
-
-		rc = lustre_msg_get_status(req->rq_repmsg);
-		if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) {
-			DEBUG_REQ(D_ERROR, req,
-				  "type == PTL_RPC_MSG_ERR, err = %d", rc);
-			if (rc > 0)
-				rc = -rc;
-		}
-		body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-		if (body == NULL)
-			rc = -EPROTO;
-	} else if (rc == -ESTALE) {
-		/**
-		 * it can be allowed error after 3633 if open was committed and
-		 * server failed before close was sent. Let's check if mod
-		 * exists and return no error in that case
-		 */
-		if (mod) {
-			DEBUG_REQ(D_HA, req, "Reset ESTALE = %d", rc);
-			LASSERT(mod->mod_open_req != NULL);
-			if (mod->mod_open_req->rq_committed)
-				rc = 0;
-		}
-	}
-
-	if (mod) {
-		if (rc != 0)
-			mod->mod_close_req = NULL;
-		/* Since now, mod is accessed through open_req only,
-		 * thus close req does not keep a reference on mod anymore. */
-		obd_mod_put(mod);
-	}
-	*request = req;
-	mdc_close_handle_reply(req, op_data, rc);
-	return rc < 0 ? rc : saved_rc;
-}
-
-static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
-			    struct md_open_data *mod)
-{
-	struct obd_device     *obd = class_exp2obd(exp);
-	struct ptlrpc_request *req;
-	int		    rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_DONE_WRITING);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	if (mod != NULL) {
-		LASSERTF(mod->mod_open_req != NULL &&
-			 mod->mod_open_req->rq_type != LI_POISON,
-			 "POISONED setattr %p!\n", mod->mod_open_req);
-
-		mod->mod_close_req = req;
-		DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr");
-		/* We no longer want to preserve this setattr for replay even
-		 * though the open was committed. b=3632, b=3633 */
-		spin_lock(&mod->mod_open_req->rq_lock);
-		mod->mod_open_req->rq_replay = 0;
-		spin_unlock(&mod->mod_open_req->rq_lock);
-	}
-
-	mdc_close_pack(req, op_data);
-	ptlrpc_request_set_replen(req);
-
-	mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL);
-	rc = ptlrpc_queue_wait(req);
-	mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL);
-
-	if (rc == -ESTALE) {
-		/**
-		 * it can be allowed error after 3633 if open or setattr were
-		 * committed and server failed before close was sent.
-		 * Let's check if mod exists and return no error in that case
-		 */
-		if (mod) {
-			LASSERT(mod->mod_open_req != NULL);
-			if (mod->mod_open_req->rq_committed)
-				rc = 0;
-		}
-	}
-
-	if (mod) {
-		if (rc != 0)
-			mod->mod_close_req = NULL;
-		LASSERT(mod->mod_open_req != NULL);
-		mdc_free_open(mod);
-
-		/* Since now, mod is accessed through setattr req only,
-		 * thus DW req does not keep a reference on mod anymore. */
-		obd_mod_put(mod);
-	}
-
-	mdc_close_handle_reply(req, op_data, rc);
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-
-static int mdc_readpage(struct obd_export *exp, struct md_op_data *op_data,
-			struct page **pages, struct ptlrpc_request **request)
-{
-	struct ptlrpc_request   *req;
-	struct ptlrpc_bulk_desc *desc;
-	int		      i;
-	wait_queue_head_t	      waitq;
-	int		      resends = 0;
-	struct l_wait_info       lwi;
-	int		      rc;
-
-	*request = NULL;
-	init_waitqueue_head(&waitq);
-
-restart_bulk:
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	req->rq_request_portal = MDS_READPAGE_PORTAL;
-	ptlrpc_at_set_req_timeout(req);
-
-	desc = ptlrpc_prep_bulk_imp(req, op_data->op_npages, 1, BULK_PUT_SINK,
-				    MDS_BULK_PORTAL);
-	if (desc == NULL) {
-		ptlrpc_request_free(req);
-		return -ENOMEM;
-	}
-
-	/* NB req now owns desc and will free it when it gets freed */
-	for (i = 0; i < op_data->op_npages; i++)
-		ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, PAGE_CACHE_SIZE);
-
-	mdc_readdir_pack(req, op_data->op_offset,
-			 PAGE_CACHE_SIZE * op_data->op_npages,
-			 &op_data->op_fid1, op_data->op_capa1);
-
-	ptlrpc_request_set_replen(req);
-	rc = ptlrpc_queue_wait(req);
-	if (rc) {
-		ptlrpc_req_finished(req);
-		if (rc != -ETIMEDOUT)
-			return rc;
-
-		resends++;
-		if (!client_should_resend(resends, &exp->exp_obd->u.cli)) {
-			CERROR("too many resend retries, returning error\n");
-			return -EIO;
-		}
-		lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends),
-				       NULL, NULL, NULL);
-		l_wait_event(waitq, 0, &lwi);
-
-		goto restart_bulk;
-	}
-
-	rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
-					  req->rq_bulk->bd_nob_transferred);
-	if (rc < 0) {
-		ptlrpc_req_finished(req);
-		return rc;
-	}
-
-	if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) {
-		CERROR("Unexpected # bytes transferred: %d (%ld expected)\n",
-			req->rq_bulk->bd_nob_transferred,
-			PAGE_CACHE_SIZE * op_data->op_npages);
-		ptlrpc_req_finished(req);
-		return -EPROTO;
-	}
-
-	*request = req;
-	return 0;
-}
-
-static int mdc_statfs(const struct lu_env *env,
-		      struct obd_export *exp, struct obd_statfs *osfs,
-		      __u64 max_age, __u32 flags)
-{
-	struct obd_device     *obd = class_exp2obd(exp);
-	struct ptlrpc_request *req;
-	struct obd_statfs     *msfs;
-	struct obd_import     *imp = NULL;
-	int		    rc;
-
-	/*
-	 * Since the request might also come from lprocfs, so we need
-	 * sync this with client_disconnect_export Bug15684
-	 */
-	down_read(&obd->u.cli.cl_sem);
-	if (obd->u.cli.cl_import)
-		imp = class_import_get(obd->u.cli.cl_import);
-	up_read(&obd->u.cli.cl_sem);
-	if (!imp)
-		return -ENODEV;
-
-	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS,
-					LUSTRE_MDS_VERSION, MDS_STATFS);
-	if (req == NULL) {
-		rc = -ENOMEM;
-		goto output;
-	}
-
-	ptlrpc_request_set_replen(req);
-
-	if (flags & OBD_STATFS_NODELAY) {
-		/* procfs requests not want stay in wait for avoid deadlock */
-		req->rq_no_resend = 1;
-		req->rq_no_delay = 1;
-	}
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc) {
-		/* check connection error first */
-		if (imp->imp_connect_error)
-			rc = imp->imp_connect_error;
-		goto out;
-	}
-
-	msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
-	if (msfs == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	*osfs = *msfs;
-out:
-	ptlrpc_req_finished(req);
-output:
-	class_import_put(imp);
-	return rc;
-}
-
-static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf)
-{
-	__u32 keylen, vallen;
-	void *key;
-	int rc;
-
-	if (gf->gf_pathlen > PATH_MAX)
-		return -ENAMETOOLONG;
-	if (gf->gf_pathlen < 2)
-		return -EOVERFLOW;
-
-	/* Key is KEY_FID2PATH + getinfo_fid2path description */
-	keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf);
-	key = kzalloc(keylen, GFP_NOFS);
-	if (!key)
-		return -ENOMEM;
-	memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH));
-	memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf));
-
-	CDEBUG(D_IOCTL, "path get "DFID" from %llu #%d\n",
-	       PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno);
-
-	if (!fid_is_sane(&gf->gf_fid)) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	/* Val is struct getinfo_fid2path result plus path */
-	vallen = sizeof(*gf) + gf->gf_pathlen;
-
-	rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL);
-	if (rc != 0 && rc != -EREMOTE)
-		goto out;
-
-	if (vallen <= sizeof(*gf)) {
-		rc = -EPROTO;
-		goto out;
-	} else if (vallen > sizeof(*gf) + gf->gf_pathlen) {
-		rc = -EOVERFLOW;
-		goto out;
-	}
-
-	CDEBUG(D_IOCTL, "path get "DFID" from %llu #%d\n%s\n",
-	       PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno, gf->gf_path);
-
-out:
-	kfree(key);
-	return rc;
-}
-
-static int mdc_ioc_hsm_progress(struct obd_export *exp,
-				struct hsm_progress_kernel *hpk)
-{
-	struct obd_import		*imp = class_exp2cliimp(exp);
-	struct hsm_progress_kernel	*req_hpk;
-	struct ptlrpc_request		*req;
-	int				 rc;
-
-	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_PROGRESS,
-					LUSTRE_MDS_VERSION, MDS_HSM_PROGRESS);
-	if (req == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
-
-	/* Copy hsm_progress struct */
-	req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS);
-	if (req_hpk == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	*req_hpk = *hpk;
-	req_hpk->hpk_errval = lustre_errno_hton(hpk->hpk_errval);
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_queue_wait(req);
-	goto out;
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives)
-{
-	__u32			*archive_mask;
-	struct ptlrpc_request	*req;
-	int			 rc;
-
-	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_REGISTER,
-					LUSTRE_MDS_VERSION,
-					MDS_HSM_CT_REGISTER);
-	if (req == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
-
-	/* Copy hsm_progress struct */
-	archive_mask = req_capsule_client_get(&req->rq_pill,
-					      &RMF_MDS_HSM_ARCHIVE);
-	if (archive_mask == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	*archive_mask = archives;
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_queue_wait(req);
-	goto out;
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_ioc_hsm_current_action(struct obd_export *exp,
-				      struct md_op_data *op_data)
-{
-	struct hsm_current_action	*hca = op_data->op_data;
-	struct hsm_current_action	*req_hca;
-	struct ptlrpc_request		*req;
-	int				 rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_HSM_ACTION);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_ACTION);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
-		      OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	req_hca = req_capsule_server_get(&req->rq_pill,
-					 &RMF_MDS_HSM_CURRENT_ACTION);
-	if (req_hca == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	*hca = *req_hca;
-
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp)
-{
-	struct ptlrpc_request	*req;
-	int			 rc;
-
-	req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_UNREGISTER,
-					LUSTRE_MDS_VERSION,
-					MDS_HSM_CT_UNREGISTER);
-	if (req == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_queue_wait(req);
-	goto out;
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_ioc_hsm_state_get(struct obd_export *exp,
-				 struct md_op_data *op_data)
-{
-	struct hsm_user_state	*hus = op_data->op_data;
-	struct hsm_user_state	*req_hus;
-	struct ptlrpc_request	*req;
-	int			 rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_HSM_STATE_GET);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_GET);
-	if (rc != 0) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
-		      OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	req_hus = req_capsule_server_get(&req->rq_pill, &RMF_HSM_USER_STATE);
-	if (req_hus == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-
-	*hus = *req_hus;
-
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_ioc_hsm_state_set(struct obd_export *exp,
-				 struct md_op_data *op_data)
-{
-	struct hsm_state_set	*hss = op_data->op_data;
-	struct hsm_state_set	*req_hss;
-	struct ptlrpc_request	*req;
-	int			 rc;
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_HSM_STATE_SET);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_SET);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
-		      OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
-
-	/* Copy states */
-	req_hss = req_capsule_client_get(&req->rq_pill, &RMF_HSM_STATE_SET);
-	if (req_hss == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-	*req_hss = *hss;
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_queue_wait(req);
-	goto out;
-
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_ioc_hsm_request(struct obd_export *exp,
-			       struct hsm_user_request *hur)
-{
-	struct obd_import	*imp = class_exp2cliimp(exp);
-	struct ptlrpc_request	*req;
-	struct hsm_request	*req_hr;
-	struct hsm_user_item	*req_hui;
-	char			*req_opaque;
-	int			 rc;
-
-	req = ptlrpc_request_alloc(imp, &RQF_MDS_HSM_REQUEST);
-	if (req == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	req_capsule_set_size(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM, RCL_CLIENT,
-			     hur->hur_request.hr_itemcount
-			     * sizeof(struct hsm_user_item));
-	req_capsule_set_size(&req->rq_pill, &RMF_GENERIC_DATA, RCL_CLIENT,
-			     hur->hur_request.hr_data_len);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_REQUEST);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, 0, 0);
-
-	/* Copy hsm_request struct */
-	req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST);
-	if (req_hr == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-	*req_hr = hur->hur_request;
-
-	/* Copy hsm_user_item structs */
-	req_hui = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM);
-	if (req_hui == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-	memcpy(req_hui, hur->hur_user_item,
-	       hur->hur_request.hr_itemcount * sizeof(struct hsm_user_item));
-
-	/* Copy opaque field */
-	req_opaque = req_capsule_client_get(&req->rq_pill, &RMF_GENERIC_DATA);
-	if (req_opaque == NULL) {
-		rc = -EPROTO;
-		goto out;
-	}
-	memcpy(req_opaque, hur_data(hur), hur->hur_request.hr_data_len);
-
-	ptlrpc_request_set_replen(req);
-
-	rc = mdc_queue_wait(req);
-	goto out;
-
-out:
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static struct kuc_hdr *changelog_kuc_hdr(char *buf, int len, int flags)
-{
-	struct kuc_hdr *lh = (struct kuc_hdr *)buf;
-
-	LASSERT(len <= KUC_CHANGELOG_MSG_MAXSIZE);
-
-	lh->kuc_magic = KUC_MAGIC;
-	lh->kuc_transport = KUC_TRANSPORT_CHANGELOG;
-	lh->kuc_flags = flags;
-	lh->kuc_msgtype = CL_RECORD;
-	lh->kuc_msglen = len;
-	return lh;
-}
-
-#define D_CHANGELOG 0
-
-struct changelog_show {
-	__u64		cs_startrec;
-	__u32		cs_flags;
-	struct file	*cs_fp;
-	char		*cs_buf;
-	struct obd_device *cs_obd;
-};
-
-static int changelog_kkuc_cb(const struct lu_env *env, struct llog_handle *llh,
-			     struct llog_rec_hdr *hdr, void *data)
-{
-	struct changelog_show *cs = data;
-	struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
-	struct kuc_hdr *lh;
-	int len, rc;
-
-	if (rec->cr_hdr.lrh_type != CHANGELOG_REC) {
-		rc = -EINVAL;
-		CERROR("%s: not a changelog rec %x/%d: rc = %d\n",
-		       cs->cs_obd->obd_name, rec->cr_hdr.lrh_type,
-		       rec->cr.cr_type, rc);
-		return rc;
-	}
-
-	if (rec->cr.cr_index < cs->cs_startrec) {
-		/* Skip entries earlier than what we are interested in */
-		CDEBUG(D_CHANGELOG, "rec=%llu start=%llu\n",
-		       rec->cr.cr_index, cs->cs_startrec);
-		return 0;
-	}
-
-	CDEBUG(D_CHANGELOG, "%llu %02d%-5s %llu 0x%x t="DFID" p="DFID
-		" %.*s\n", rec->cr.cr_index, rec->cr.cr_type,
-		changelog_type2str(rec->cr.cr_type), rec->cr.cr_time,
-		rec->cr.cr_flags & CLF_FLAGMASK,
-		PFID(&rec->cr.cr_tfid), PFID(&rec->cr.cr_pfid),
-		rec->cr.cr_namelen, changelog_rec_name(&rec->cr));
-
-	len = sizeof(*lh) + changelog_rec_size(&rec->cr) + rec->cr.cr_namelen;
-
-	/* Set up the message */
-	lh = changelog_kuc_hdr(cs->cs_buf, len, cs->cs_flags);
-	memcpy(lh + 1, &rec->cr, len - sizeof(*lh));
-
-	rc = libcfs_kkuc_msg_put(cs->cs_fp, lh);
-	CDEBUG(D_CHANGELOG, "kucmsg fp %p len %d rc %d\n", cs->cs_fp, len, rc);
-
-	return rc;
-}
-
-static int mdc_changelog_send_thread(void *csdata)
-{
-	struct changelog_show *cs = csdata;
-	struct llog_ctxt *ctxt = NULL;
-	struct llog_handle *llh = NULL;
-	struct kuc_hdr *kuch;
-	int rc;
-
-	CDEBUG(D_CHANGELOG, "changelog to fp=%p start %llu\n",
-	       cs->cs_fp, cs->cs_startrec);
-
-	cs->cs_buf = kzalloc(KUC_CHANGELOG_MSG_MAXSIZE, GFP_NOFS);
-	if (!cs->cs_buf) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	/* Set up the remote catalog handle */
-	ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT);
-	if (ctxt == NULL) {
-		rc = -ENOENT;
-		goto out;
-	}
-	rc = llog_open(NULL, ctxt, &llh, NULL, CHANGELOG_CATALOG,
-		       LLOG_OPEN_EXISTS);
-	if (rc) {
-		CERROR("%s: fail to open changelog catalog: rc = %d\n",
-		       cs->cs_obd->obd_name, rc);
-		goto out;
-	}
-	rc = llog_init_handle(NULL, llh, LLOG_F_IS_CAT, NULL);
-	if (rc) {
-		CERROR("llog_init_handle failed %d\n", rc);
-		goto out;
-	}
-
-	rc = llog_cat_process(NULL, llh, changelog_kkuc_cb, cs, 0, 0);
-
-	/* Send EOF no matter what our result */
-	kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch), cs->cs_flags);
-	if (kuch) {
-		kuch->kuc_msgtype = CL_EOF;
-		libcfs_kkuc_msg_put(cs->cs_fp, kuch);
-	}
-
-out:
-	fput(cs->cs_fp);
-	if (llh)
-		llog_cat_close(NULL, llh);
-	if (ctxt)
-		llog_ctxt_put(ctxt);
-	kfree(cs->cs_buf);
-	kfree(cs);
-	return rc;
-}
-
-static int mdc_ioc_changelog_send(struct obd_device *obd,
-				  struct ioc_changelog *icc)
-{
-	struct changelog_show *cs;
-	int rc;
-
-	/* Freed in mdc_changelog_send_thread */
-	cs = kzalloc(sizeof(*cs), GFP_NOFS);
-	if (!cs)
-		return -ENOMEM;
-
-	cs->cs_obd = obd;
-	cs->cs_startrec = icc->icc_recno;
-	/* matching fput in mdc_changelog_send_thread */
-	cs->cs_fp = fget(icc->icc_id);
-	cs->cs_flags = icc->icc_flags;
-
-	/*
-	 * New thread because we should return to user app before
-	 * writing into our pipe
-	 */
-	rc = PTR_ERR(kthread_run(mdc_changelog_send_thread, cs,
-				 "mdc_clg_send_thread"));
-	if (!IS_ERR_VALUE(rc)) {
-		CDEBUG(D_CHANGELOG, "start changelog thread\n");
-		return 0;
-	}
-
-	CERROR("Failed to start changelog thread: %d\n", rc);
-	kfree(cs);
-	return rc;
-}
-
-static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
-				struct lustre_kernelcomm *lk);
-
-static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp,
-			  struct obd_quotactl *oqctl)
-{
-	struct client_obd       *cli = &exp->exp_obd->u.cli;
-	struct ptlrpc_request   *req;
-	struct obd_quotactl     *body;
-	int		      rc;
-
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
-					&RQF_MDS_QUOTACHECK, LUSTRE_MDS_VERSION,
-					MDS_QUOTACHECK);
-	if (req == NULL)
-		return -ENOMEM;
-
-	body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
-	*body = *oqctl;
-
-	ptlrpc_request_set_replen(req);
-
-	/* the next poll will find -ENODATA, that means quotacheck is
-	 * going on */
-	cli->cl_qchk_stat = -ENODATA;
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		cli->cl_qchk_stat = rc;
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_quota_poll_check(struct obd_export *exp,
-				struct if_quotacheck *qchk)
-{
-	struct client_obd *cli = &exp->exp_obd->u.cli;
-	int rc;
-
-	qchk->obd_uuid = cli->cl_target_uuid;
-	memcpy(qchk->obd_type, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME));
-
-	rc = cli->cl_qchk_stat;
-	/* the client is not the previous one */
-	if (rc == CL_NOT_QUOTACHECKED)
-		rc = -EINTR;
-	return rc;
-}
-
-static int mdc_quotactl(struct obd_device *unused, struct obd_export *exp,
-			struct obd_quotactl *oqctl)
-{
-	struct ptlrpc_request   *req;
-	struct obd_quotactl     *oqc;
-	int		      rc;
-
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
-					&RQF_MDS_QUOTACTL, LUSTRE_MDS_VERSION,
-					MDS_QUOTACTL);
-	if (req == NULL)
-		return -ENOMEM;
-
-	oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
-	*oqc = *oqctl;
-
-	ptlrpc_request_set_replen(req);
-	ptlrpc_at_set_req_timeout(req);
-	req->rq_no_resend = 1;
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc);
-
-	if (req->rq_repmsg) {
-		oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
-		if (oqc) {
-			*oqctl = *oqc;
-		} else if (!rc) {
-			CERROR("Can't unpack obd_quotactl\n");
-			rc = -EPROTO;
-		}
-	} else if (!rc) {
-		CERROR("Can't unpack obd_quotactl\n");
-		rc = -EPROTO;
-	}
-	ptlrpc_req_finished(req);
-
-	return rc;
-}
-
-static int mdc_ioc_swap_layouts(struct obd_export *exp,
-				struct md_op_data *op_data)
-{
-	LIST_HEAD(cancels);
-	struct ptlrpc_request	*req;
-	int			 rc, count;
-	struct mdc_swap_layouts *msl, *payload;
-
-	msl = op_data->op_data;
-
-	/* When the MDT will get the MDS_SWAP_LAYOUTS RPC the
-	 * first thing it will do is to cancel the 2 layout
-	 * locks hold by this client.
-	 * So the client must cancel its layout locks on the 2 fids
-	 * with the request RPC to avoid extra RPC round trips
-	 */
-	count = mdc_resource_get_unused(exp, &op_data->op_fid1, &cancels,
-					LCK_CR, MDS_INODELOCK_LAYOUT);
-	count += mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels,
-					 LCK_CR, MDS_INODELOCK_LAYOUT);
-
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp),
-				   &RQF_MDS_SWAP_LAYOUTS);
-	if (req == NULL) {
-		ldlm_lock_list_put(&cancels, l_bl_ast, count);
-		return -ENOMEM;
-	}
-
-	mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
-	mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2);
-
-	rc = mdc_prep_elc_req(exp, req, MDS_SWAP_LAYOUTS, &cancels, count);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_swap_layouts_pack(req, op_data);
-
-	payload = req_capsule_client_get(&req->rq_pill, &RMF_SWAP_LAYOUTS);
-	LASSERT(payload);
-
-	*payload = *msl;
-
-	ptlrpc_request_set_replen(req);
-
-	rc = ptlrpc_queue_wait(req);
-
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
-			 void *karg, void *uarg)
-{
-	struct obd_device *obd = exp->exp_obd;
-	struct obd_ioctl_data *data = karg;
-	struct obd_import *imp = obd->u.cli.cl_import;
-	int rc;
-
-	if (!try_module_get(THIS_MODULE)) {
-		CERROR("Can't get module. Is it alive?");
-		return -EINVAL;
-	}
-	switch (cmd) {
-	case OBD_IOC_CHANGELOG_SEND:
-		rc = mdc_ioc_changelog_send(obd, karg);
-		goto out;
-	case OBD_IOC_CHANGELOG_CLEAR: {
-		struct ioc_changelog *icc = karg;
-		struct changelog_setinfo cs = {
-			.cs_recno = icc->icc_recno,
-			.cs_id = icc->icc_id
-		};
-
-		rc = obd_set_info_async(NULL, exp, strlen(KEY_CHANGELOG_CLEAR),
-					KEY_CHANGELOG_CLEAR, sizeof(cs), &cs,
-					NULL);
-		goto out;
-	}
-	case OBD_IOC_FID2PATH:
-		rc = mdc_ioc_fid2path(exp, karg);
-		goto out;
-	case LL_IOC_HSM_CT_START:
-		rc = mdc_ioc_hsm_ct_start(exp, karg);
-		/* ignore if it was already registered on this MDS. */
-		if (rc == -EEXIST)
-			rc = 0;
-		goto out;
-	case LL_IOC_HSM_PROGRESS:
-		rc = mdc_ioc_hsm_progress(exp, karg);
-		goto out;
-	case LL_IOC_HSM_STATE_GET:
-		rc = mdc_ioc_hsm_state_get(exp, karg);
-		goto out;
-	case LL_IOC_HSM_STATE_SET:
-		rc = mdc_ioc_hsm_state_set(exp, karg);
-		goto out;
-	case LL_IOC_HSM_ACTION:
-		rc = mdc_ioc_hsm_current_action(exp, karg);
-		goto out;
-	case LL_IOC_HSM_REQUEST:
-		rc = mdc_ioc_hsm_request(exp, karg);
-		goto out;
-	case OBD_IOC_CLIENT_RECOVER:
-		rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1, 0);
-		if (rc < 0)
-			goto out;
-		rc = 0;
-		goto out;
-	case IOC_OSC_SET_ACTIVE:
-		rc = ptlrpc_set_import_active(imp, data->ioc_offset);
-		goto out;
-	case OBD_IOC_POLL_QUOTACHECK:
-		rc = mdc_quota_poll_check(exp, (struct if_quotacheck *)karg);
-		goto out;
-	case OBD_IOC_PING_TARGET:
-		rc = ptlrpc_obd_ping(obd);
-		goto out;
-	/*
-	 * Normally IOC_OBD_STATFS, OBD_IOC_QUOTACTL iocontrol are handled by
-	 * LMV instead of MDC. But when the cluster is upgraded from 1.8,
-	 * there'd be no LMV layer thus we might be called here. Eventually
-	 * this code should be removed.
-	 * bz20731, LU-592.
-	 */
-	case IOC_OBD_STATFS: {
-		struct obd_statfs stat_buf = {0};
-
-		if (*((__u32 *) data->ioc_inlbuf2) != 0) {
-			rc = -ENODEV;
-			goto out;
-		}
-
-		/* copy UUID */
-		if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd),
-				 min_t(size_t, data->ioc_plen2,
-					       sizeof(struct obd_uuid)))) {
-			rc = -EFAULT;
-			goto out;
-		}
-
-		rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf,
-				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-				0);
-		if (rc != 0)
-			goto out;
-
-		if (copy_to_user(data->ioc_pbuf1, &stat_buf,
-				 min_t(size_t, data->ioc_plen1,
-					       sizeof(stat_buf)))) {
-			rc = -EFAULT;
-			goto out;
-		}
-
-		rc = 0;
-		goto out;
-	}
-	case OBD_IOC_QUOTACTL: {
-		struct if_quotactl *qctl = karg;
-		struct obd_quotactl *oqctl;
-
-		oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS);
-		if (!oqctl) {
-			rc = -ENOMEM;
-			goto out;
-		}
-
-		QCTL_COPY(oqctl, qctl);
-		rc = obd_quotactl(exp, oqctl);
-		if (rc == 0) {
-			QCTL_COPY(qctl, oqctl);
-			qctl->qc_valid = QC_MDTIDX;
-			qctl->obd_uuid = obd->u.cli.cl_target_uuid;
-		}
-
-		kfree(oqctl);
-		goto out;
-	}
-	case LL_IOC_GET_CONNECT_FLAGS:
-		if (copy_to_user(uarg, exp_connect_flags_ptr(exp),
-				 sizeof(*exp_connect_flags_ptr(exp)))) {
-			rc = -EFAULT;
-			goto out;
-		}
-
-		rc = 0;
-		goto out;
-	case LL_IOC_LOV_SWAP_LAYOUTS:
-		rc = mdc_ioc_swap_layouts(exp, karg);
-		goto out;
-	default:
-		CERROR("unrecognised ioctl: cmd = %#x\n", cmd);
-		rc = -ENOTTY;
-		goto out;
-	}
-out:
-	module_put(THIS_MODULE);
-
-	return rc;
-}
-
-static int mdc_get_info_rpc(struct obd_export *exp,
-			    u32 keylen, void *key,
-			    int vallen, void *val)
-{
-	struct obd_import      *imp = class_exp2cliimp(exp);
-	struct ptlrpc_request  *req;
-	char		   *tmp;
-	int		     rc = -EINVAL;
-
-	req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO);
-	if (req == NULL)
-		return -ENOMEM;
-
-	req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY,
-			     RCL_CLIENT, keylen);
-	req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VALLEN,
-			     RCL_CLIENT, sizeof(__u32));
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GET_INFO);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY);
-	memcpy(tmp, key, keylen);
-	tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_VALLEN);
-	memcpy(tmp, &vallen, sizeof(__u32));
-
-	req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VAL,
-			     RCL_SERVER, vallen);
-	ptlrpc_request_set_replen(req);
-
-	rc = ptlrpc_queue_wait(req);
-	/* -EREMOTE means the get_info result is partial, and it needs to
-	 * continue on another MDT, see fid2path part in lmv_iocontrol */
-	if (rc == 0 || rc == -EREMOTE) {
-		tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
-		memcpy(val, tmp, vallen);
-		if (ptlrpc_rep_need_swab(req)) {
-			if (KEY_IS(KEY_FID2PATH))
-				lustre_swab_fid2path(val);
-		}
-	}
-	ptlrpc_req_finished(req);
-
-	return rc;
-}
-
-static void lustre_swab_hai(struct hsm_action_item *h)
-{
-	__swab32s(&h->hai_len);
-	__swab32s(&h->hai_action);
-	lustre_swab_lu_fid(&h->hai_fid);
-	lustre_swab_lu_fid(&h->hai_dfid);
-	__swab64s(&h->hai_cookie);
-	__swab64s(&h->hai_extent.offset);
-	__swab64s(&h->hai_extent.length);
-	__swab64s(&h->hai_gid);
-}
-
-static void lustre_swab_hal(struct hsm_action_list *h)
-{
-	struct hsm_action_item	*hai;
-	int			 i;
-
-	__swab32s(&h->hal_version);
-	__swab32s(&h->hal_count);
-	__swab32s(&h->hal_archive_id);
-	__swab64s(&h->hal_flags);
-	hai = hai_zero(h);
-	for (i = 0; i < h->hal_count; i++, hai = hai_next(hai))
-		lustre_swab_hai(hai);
-}
-
-static void lustre_swab_kuch(struct kuc_hdr *l)
-{
-	__swab16s(&l->kuc_magic);
-	/* __u8 l->kuc_transport */
-	__swab16s(&l->kuc_msgtype);
-	__swab16s(&l->kuc_msglen);
-}
-
-static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
-				struct lustre_kernelcomm *lk)
-{
-	struct obd_import  *imp = class_exp2cliimp(exp);
-	__u32		    archive = lk->lk_data;
-	int		    rc = 0;
-
-	if (lk->lk_group != KUC_GRP_HSM) {
-		CERROR("Bad copytool group %d\n", lk->lk_group);
-		return -EINVAL;
-	}
-
-	CDEBUG(D_HSM, "CT start r%d w%d u%d g%d f%#x\n", lk->lk_rfd, lk->lk_wfd,
-	       lk->lk_uid, lk->lk_group, lk->lk_flags);
-
-	if (lk->lk_flags & LK_FLG_STOP) {
-		/* Unregister with the coordinator */
-		rc = mdc_ioc_hsm_ct_unregister(imp);
-	} else {
-		rc = mdc_ioc_hsm_ct_register(imp, archive);
-	}
-
-	return rc;
-}
-
-/**
- * Send a message to any listening copytools
- * @param val KUC message (kuc_hdr + hsm_action_list)
- * @param len total length of message
- */
-static int mdc_hsm_copytool_send(int len, void *val)
-{
-	struct kuc_hdr		*lh = (struct kuc_hdr *)val;
-	struct hsm_action_list	*hal = (struct hsm_action_list *)(lh + 1);
-
-	if (len < sizeof(*lh) + sizeof(*hal)) {
-		CERROR("Short HSM message %d < %d\n", len,
-		       (int) (sizeof(*lh) + sizeof(*hal)));
-		return -EPROTO;
-	}
-	if (lh->kuc_magic == __swab16(KUC_MAGIC)) {
-		lustre_swab_kuch(lh);
-		lustre_swab_hal(hal);
-	} else if (lh->kuc_magic != KUC_MAGIC) {
-		CERROR("Bad magic %x!=%x\n", lh->kuc_magic, KUC_MAGIC);
-		return -EPROTO;
-	}
-
-	CDEBUG(D_HSM,
-	       "Received message mg=%x t=%d m=%d l=%d actions=%d on %s\n",
-	       lh->kuc_magic, lh->kuc_transport, lh->kuc_msgtype,
-	       lh->kuc_msglen, hal->hal_count, hal->hal_fsname);
-
-	/* Broadcast to HSM listeners */
-	return libcfs_kkuc_group_put(KUC_GRP_HSM, lh);
-}
-
-/**
- * callback function passed to kuc for re-registering each HSM copytool
- * running on MDC, after MDT shutdown/recovery.
- * @param data archive id served by the copytool
- * @param cb_arg callback argument (obd_import)
- */
-static int mdc_hsm_ct_reregister(__u32 data, void *cb_arg)
-{
-	struct obd_import	*imp = (struct obd_import *)cb_arg;
-	__u32			 archive = data;
-	int			 rc;
-
-	CDEBUG(D_HA, "recover copytool registration to MDT (archive=%#x)\n",
-	       archive);
-	rc = mdc_ioc_hsm_ct_register(imp, archive);
-
-	/* ignore error if the copytool is already registered */
-	return ((rc != 0) && (rc != -EEXIST)) ? rc : 0;
-}
-
-/**
- * Re-establish all kuc contexts with MDT
- * after MDT shutdown/recovery.
- */
-static int mdc_kuc_reregister(struct obd_import *imp)
-{
-	/* re-register HSM agents */
-	return libcfs_kkuc_group_foreach(KUC_GRP_HSM, mdc_hsm_ct_reregister,
-					 (void *)imp);
-}
-
-static int mdc_set_info_async(const struct lu_env *env,
-			      struct obd_export *exp,
-			      u32 keylen, void *key,
-			      u32 vallen, void *val,
-			      struct ptlrpc_request_set *set)
-{
-	struct obd_import	*imp = class_exp2cliimp(exp);
-	int			 rc;
-
-	if (KEY_IS(KEY_READ_ONLY)) {
-		if (vallen != sizeof(int))
-			return -EINVAL;
-
-		spin_lock(&imp->imp_lock);
-		if (*((int *)val)) {
-			imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY;
-			imp->imp_connect_data.ocd_connect_flags |=
-							OBD_CONNECT_RDONLY;
-		} else {
-			imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY;
-			imp->imp_connect_data.ocd_connect_flags &=
-							~OBD_CONNECT_RDONLY;
-		}
-		spin_unlock(&imp->imp_lock);
-
-		rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
-				       keylen, key, vallen, val, set);
-		return rc;
-	}
-	if (KEY_IS(KEY_SPTLRPC_CONF)) {
-		sptlrpc_conf_client_adapt(exp->exp_obd);
-		return 0;
-	}
-	if (KEY_IS(KEY_FLUSH_CTX)) {
-		sptlrpc_import_flush_my_ctx(imp);
-		return 0;
-	}
-	if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
-		rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
-				       keylen, key, vallen, val, set);
-		return rc;
-	}
-	if (KEY_IS(KEY_HSM_COPYTOOL_SEND)) {
-		rc = mdc_hsm_copytool_send(vallen, val);
-		return rc;
-	}
-
-	CERROR("Unknown key %s\n", (char *)key);
-	return -EINVAL;
-}
-
-static int mdc_get_info(const struct lu_env *env, struct obd_export *exp,
-			__u32 keylen, void *key, __u32 *vallen, void *val,
-			struct lov_stripe_md *lsm)
-{
-	int rc = -EINVAL;
-
-	if (KEY_IS(KEY_MAX_EASIZE)) {
-		int mdsize, *max_easize;
-
-		if (*vallen != sizeof(int))
-			return -EINVAL;
-		mdsize = *(int *)val;
-		if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
-			exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
-		max_easize = val;
-		*max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
-		return 0;
-	} else if (KEY_IS(KEY_DEFAULT_EASIZE)) {
-		int *default_easize;
-
-		if (*vallen != sizeof(int))
-			return -EINVAL;
-		default_easize = val;
-		*default_easize = exp->exp_obd->u.cli.cl_default_mds_easize;
-		return 0;
-	} else if (KEY_IS(KEY_MAX_COOKIESIZE)) {
-		int mdsize, *max_cookiesize;
-
-		if (*vallen != sizeof(int))
-			return -EINVAL;
-		mdsize = *(int *)val;
-		if (mdsize > exp->exp_obd->u.cli.cl_max_mds_cookiesize)
-			exp->exp_obd->u.cli.cl_max_mds_cookiesize = mdsize;
-		max_cookiesize = val;
-		*max_cookiesize = exp->exp_obd->u.cli.cl_max_mds_cookiesize;
-		return 0;
-	} else if (KEY_IS(KEY_DEFAULT_COOKIESIZE)) {
-		int *default_cookiesize;
-
-		if (*vallen != sizeof(int))
-			return -EINVAL;
-		default_cookiesize = val;
-		*default_cookiesize =
-			exp->exp_obd->u.cli.cl_default_mds_cookiesize;
-		return 0;
-	} else if (KEY_IS(KEY_CONN_DATA)) {
-		struct obd_import *imp = class_exp2cliimp(exp);
-		struct obd_connect_data *data = val;
-
-		if (*vallen != sizeof(*data))
-			return -EINVAL;
-
-		*data = imp->imp_connect_data;
-		return 0;
-	} else if (KEY_IS(KEY_TGT_COUNT)) {
-		*((int *)val) = 1;
-		return 0;
-	}
-
-	rc = mdc_get_info_rpc(exp, keylen, key, *vallen, val);
-
-	return rc;
-}
-
-static int mdc_sync(struct obd_export *exp, const struct lu_fid *fid,
-		    struct obd_capa *oc, struct ptlrpc_request **request)
-{
-	struct ptlrpc_request *req;
-	int		    rc;
-
-	*request = NULL;
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, oc);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, fid, oc, 0, 0, -1, 0);
-
-	ptlrpc_request_set_replen(req);
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		ptlrpc_req_finished(req);
-	else
-		*request = req;
-	return rc;
-}
-
-static int mdc_import_event(struct obd_device *obd, struct obd_import *imp,
-			    enum obd_import_event event)
-{
-	int rc = 0;
-
-	LASSERT(imp->imp_obd == obd);
-
-	switch (event) {
-	case IMP_EVENT_DISCON: {
-#if 0
-		/* XXX Pass event up to OBDs stack. used only for FLD now */
-		rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DISCON, NULL);
-#endif
-		break;
-	}
-	case IMP_EVENT_INACTIVE: {
-		struct client_obd *cli = &obd->u.cli;
-		/*
-		 * Flush current sequence to make client obtain new one
-		 * from server in case of disconnect/reconnect.
-		 */
-		if (cli->cl_seq != NULL)
-			seq_client_flush(cli->cl_seq);
-
-		rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL);
-		break;
-	}
-	case IMP_EVENT_INVALIDATE: {
-		struct ldlm_namespace *ns = obd->obd_namespace;
-
-		ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
-
-		break;
-	}
-	case IMP_EVENT_ACTIVE:
-		rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
-		/* redo the kuc registration after reconnecting */
-		if (rc == 0)
-			rc = mdc_kuc_reregister(imp);
-		break;
-	case IMP_EVENT_OCD:
-		rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL);
-		break;
-	case IMP_EVENT_DEACTIVATE:
-	case IMP_EVENT_ACTIVATE:
-		break;
-	default:
-		CERROR("Unknown import event %x\n", event);
-		LBUG();
-	}
-	return rc;
-}
-
-int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
-		  struct md_op_data *op_data)
-{
-	struct client_obd *cli = &exp->exp_obd->u.cli;
-	struct lu_client_seq *seq = cli->cl_seq;
-
-	return seq_client_alloc_fid(NULL, seq, fid);
-}
-
-static struct obd_uuid *mdc_get_uuid(struct obd_export *exp)
-{
-	struct client_obd *cli = &exp->exp_obd->u.cli;
-
-	return &cli->cl_target_uuid;
-}
-
-/**
- * Determine whether the lock can be canceled before replaying it during
- * recovery, non zero value will be return if the lock can be canceled,
- * or zero returned for not
- */
-static int mdc_cancel_for_recovery(struct ldlm_lock *lock)
-{
-	if (lock->l_resource->lr_type != LDLM_IBITS)
-		return 0;
-
-	/* FIXME: if we ever get into a situation where there are too many
-	 * opened files with open locks on a single node, then we really
-	 * should replay these open locks to reget it */
-	if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
-		return 0;
-
-	return 1;
-}
-
-static int mdc_resource_inode_free(struct ldlm_resource *res)
-{
-	if (res->lr_lvb_inode)
-		res->lr_lvb_inode = NULL;
-
-	return 0;
-}
-
-static struct ldlm_valblock_ops inode_lvbo = {
-	.lvbo_free = mdc_resource_inode_free,
-};
-
-static int mdc_llog_init(struct obd_device *obd)
-{
-	struct obd_llog_group	*olg = &obd->obd_olg;
-	struct llog_ctxt	*ctxt;
-	int			 rc;
-
-	rc = llog_setup(NULL, obd, olg, LLOG_CHANGELOG_REPL_CTXT, obd,
-			&llog_client_ops);
-	if (rc)
-		return rc;
-
-	ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT);
-	llog_initiator_connect(ctxt);
-	llog_ctxt_put(ctxt);
-
-	return 0;
-}
-
-static void mdc_llog_finish(struct obd_device *obd)
-{
-	struct llog_ctxt *ctxt;
-
-	ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT);
-	if (ctxt)
-		llog_cleanup(NULL, ctxt);
-}
-
-static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
-{
-	struct client_obd *cli = &obd->u.cli;
-	struct lprocfs_static_vars lvars = { NULL };
-	int rc;
-
-	cli->cl_rpc_lock = kzalloc(sizeof(*cli->cl_rpc_lock), GFP_NOFS);
-	if (!cli->cl_rpc_lock)
-		return -ENOMEM;
-	mdc_init_rpc_lock(cli->cl_rpc_lock);
-
-	ptlrpcd_addref();
-
-	cli->cl_close_lock = kzalloc(sizeof(*cli->cl_close_lock), GFP_NOFS);
-	if (!cli->cl_close_lock) {
-		rc = -ENOMEM;
-		goto err_rpc_lock;
-	}
-	mdc_init_rpc_lock(cli->cl_close_lock);
-
-	rc = client_obd_setup(obd, cfg);
-	if (rc)
-		goto err_close_lock;
-	lprocfs_mdc_init_vars(&lvars);
-	lprocfs_obd_setup(obd, lvars.obd_vars, lvars.sysfs_vars);
-	sptlrpc_lprocfs_cliobd_attach(obd);
-	ptlrpc_lprocfs_register_obd(obd);
-
-	ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery);
-
-	obd->obd_namespace->ns_lvbo = &inode_lvbo;
-
-	rc = mdc_llog_init(obd);
-	if (rc) {
-		mdc_cleanup(obd);
-		CERROR("failed to setup llogging subsystems\n");
-	}
-
-	return rc;
-
-err_close_lock:
-	kfree(cli->cl_close_lock);
-err_rpc_lock:
-	kfree(cli->cl_rpc_lock);
-	ptlrpcd_decref();
-	return rc;
-}
-
-/* Initialize the default and maximum LOV EA and cookie sizes.  This allows
- * us to make MDS RPCs with large enough reply buffers to hold a default
- * sized EA and cookie without having to calculate this (via a call into the
- * LOV + OSCs) each time we make an RPC.  The maximum size is also tracked
- * but not used to avoid wastefully vmalloc()'ing large reply buffers when
- * a large number of stripes is possible.  If a larger reply buffer is
- * required it will be reallocated in the ptlrpc layer due to overflow.
- */
-static int mdc_init_ea_size(struct obd_export *exp, int easize,
-			    int def_easize, int cookiesize, int def_cookiesize)
-{
-	struct obd_device *obd = exp->exp_obd;
-	struct client_obd *cli = &obd->u.cli;
-
-	if (cli->cl_max_mds_easize < easize)
-		cli->cl_max_mds_easize = easize;
-
-	if (cli->cl_default_mds_easize < def_easize)
-		cli->cl_default_mds_easize = def_easize;
-
-	if (cli->cl_max_mds_cookiesize < cookiesize)
-		cli->cl_max_mds_cookiesize = cookiesize;
-
-	if (cli->cl_default_mds_cookiesize < def_cookiesize)
-		cli->cl_default_mds_cookiesize = def_cookiesize;
-
-	return 0;
-}
-
-static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
-{
-	switch (stage) {
-	case OBD_CLEANUP_EARLY:
-		break;
-	case OBD_CLEANUP_EXPORTS:
-		/* Failsafe, ok if racy */
-		if (obd->obd_type->typ_refcnt <= 1)
-			libcfs_kkuc_group_rem(0, KUC_GRP_HSM);
-
-		obd_cleanup_client_import(obd);
-		ptlrpc_lprocfs_unregister_obd(obd);
-		lprocfs_obd_cleanup(obd);
-
-		mdc_llog_finish(obd);
-		break;
-	}
-	return 0;
-}
-
-static int mdc_cleanup(struct obd_device *obd)
-{
-	struct client_obd *cli = &obd->u.cli;
-
-	kfree(cli->cl_rpc_lock);
-	kfree(cli->cl_close_lock);
-
-	ptlrpcd_decref();
-
-	return client_obd_cleanup(obd);
-}
-
-static int mdc_process_config(struct obd_device *obd, u32 len, void *buf)
-{
-	struct lustre_cfg *lcfg = buf;
-	struct lprocfs_static_vars lvars = { NULL };
-	int rc = 0;
-
-	lprocfs_mdc_init_vars(&lvars);
-	switch (lcfg->lcfg_command) {
-	default:
-		rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars,
-					      lcfg, obd);
-		if (rc > 0)
-			rc = 0;
-		break;
-	}
-	return rc;
-}
-
-
-/* get remote permission for current user on fid */
-static int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid,
-			       struct obd_capa *oc, __u32 suppgid,
-			       struct ptlrpc_request **request)
-{
-	struct ptlrpc_request  *req;
-	int		    rc;
-
-	LASSERT(client_is_remote(exp));
-
-	*request = NULL;
-	req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
-	if (req == NULL)
-		return -ENOMEM;
-
-	mdc_set_capa_size(req, &RMF_CAPA1, oc);
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR);
-	if (rc) {
-		ptlrpc_request_free(req);
-		return rc;
-	}
-
-	mdc_pack_body(req, fid, oc, OBD_MD_FLRMTPERM, 0, suppgid, 0);
-
-	req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER,
-			     sizeof(struct mdt_remote_perm));
-
-	ptlrpc_request_set_replen(req);
-
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		ptlrpc_req_finished(req);
-	else
-		*request = req;
-	return rc;
-}
-
-static int mdc_interpret_renew_capa(const struct lu_env *env,
-				    struct ptlrpc_request *req, void *args,
-				    int status)
-{
-	struct mdc_renew_capa_args *ra = args;
-	struct mdt_body *body = NULL;
-	struct lustre_capa *capa;
-
-	if (status) {
-		capa = ERR_PTR(status);
-		goto out;
-	}
-
-	body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
-	if (body == NULL) {
-		capa = ERR_PTR(-EFAULT);
-		goto out;
-	}
-
-	if ((body->valid & OBD_MD_FLOSSCAPA) == 0) {
-		capa = ERR_PTR(-ENOENT);
-		goto out;
-	}
-
-	capa = req_capsule_server_get(&req->rq_pill, &RMF_CAPA2);
-	if (!capa) {
-		capa = ERR_PTR(-EFAULT);
-		goto out;
-	}
-out:
-	ra->ra_cb(ra->ra_oc, capa);
-	return 0;
-}
-
-static int mdc_renew_capa(struct obd_export *exp, struct obd_capa *oc,
-			  renew_capa_cb_t cb)
-{
-	struct ptlrpc_request *req;
-	struct mdc_renew_capa_args *ra;
-
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_MDS_GETATTR,
-					LUSTRE_MDS_VERSION, MDS_GETATTR);
-	if (req == NULL)
-		return -ENOMEM;
-
-	/* NB, OBD_MD_FLOSSCAPA is set here, but it doesn't necessarily mean the
-	 * capa to renew is oss capa.
-	 */
-	mdc_pack_body(req, &oc->c_capa.lc_fid, oc, OBD_MD_FLOSSCAPA, 0, -1, 0);
-	ptlrpc_request_set_replen(req);
-
-	CLASSERT(sizeof(*ra) <= sizeof(req->rq_async_args));
-	ra = ptlrpc_req_async_args(req);
-	ra->ra_oc = oc;
-	ra->ra_cb = cb;
-	req->rq_interpret_reply = mdc_interpret_renew_capa;
-	ptlrpcd_add_req(req, PDL_POLICY_LOCAL, -1);
-	return 0;
-}
-
-static struct obd_ops mdc_obd_ops = {
-	.o_owner	    = THIS_MODULE,
-	.o_setup	    = mdc_setup,
-	.o_precleanup       = mdc_precleanup,
-	.o_cleanup	  = mdc_cleanup,
-	.o_add_conn	 = client_import_add_conn,
-	.o_del_conn	 = client_import_del_conn,
-	.o_connect          = client_connect_import,
-	.o_disconnect       = client_disconnect_export,
-	.o_iocontrol	= mdc_iocontrol,
-	.o_set_info_async   = mdc_set_info_async,
-	.o_statfs	   = mdc_statfs,
-	.o_fid_init	    = client_fid_init,
-	.o_fid_fini	    = client_fid_fini,
-	.o_fid_alloc	= mdc_fid_alloc,
-	.o_import_event     = mdc_import_event,
-	.o_get_info	 = mdc_get_info,
-	.o_process_config   = mdc_process_config,
-	.o_get_uuid	 = mdc_get_uuid,
-	.o_quotactl	 = mdc_quotactl,
-	.o_quotacheck       = mdc_quotacheck
-};
-
-static struct md_ops mdc_md_ops = {
-	.m_getstatus	= mdc_getstatus,
-	.m_null_inode	    = mdc_null_inode,
-	.m_find_cbdata      = mdc_find_cbdata,
-	.m_close	    = mdc_close,
-	.m_create	   = mdc_create,
-	.m_done_writing     = mdc_done_writing,
-	.m_enqueue	  = mdc_enqueue,
-	.m_getattr	  = mdc_getattr,
-	.m_getattr_name     = mdc_getattr_name,
-	.m_intent_lock      = mdc_intent_lock,
-	.m_link	     = mdc_link,
-	.m_is_subdir	= mdc_is_subdir,
-	.m_rename	   = mdc_rename,
-	.m_setattr	  = mdc_setattr,
-	.m_setxattr	 = mdc_setxattr,
-	.m_getxattr	 = mdc_getxattr,
-	.m_sync	     = mdc_sync,
-	.m_readpage	 = mdc_readpage,
-	.m_unlink	   = mdc_unlink,
-	.m_cancel_unused    = mdc_cancel_unused,
-	.m_init_ea_size     = mdc_init_ea_size,
-	.m_set_lock_data    = mdc_set_lock_data,
-	.m_lock_match       = mdc_lock_match,
-	.m_get_lustre_md    = mdc_get_lustre_md,
-	.m_free_lustre_md   = mdc_free_lustre_md,
-	.m_set_open_replay_data = mdc_set_open_replay_data,
-	.m_clear_open_replay_data = mdc_clear_open_replay_data,
-	.m_renew_capa       = mdc_renew_capa,
-	.m_unpack_capa      = mdc_unpack_capa,
-	.m_get_remote_perm  = mdc_get_remote_perm,
-	.m_intent_getattr_async = mdc_intent_getattr_async,
-	.m_revalidate_lock      = mdc_revalidate_lock
-};
-
-static int __init mdc_init(void)
-{
-	struct lprocfs_static_vars lvars = { NULL };
-
-	lprocfs_mdc_init_vars(&lvars);
-
-	return class_register_type(&mdc_obd_ops, &mdc_md_ops,
-				 LUSTRE_MDC_NAME, NULL);
-}
-
-static void /*__exit*/ mdc_exit(void)
-{
-	class_unregister_type(LUSTRE_MDC_NAME);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Metadata Client");
-MODULE_LICENSE("GPL");
-
-module_init(mdc_init);
-module_exit(mdc_exit);
diff --git a/drivers/staging/lustre/lustre/mgc/Makefile b/drivers/staging/lustre/lustre/mgc/Makefile
deleted file mode 100644
index 8ea29a89cf50..000000000000
--- a/drivers/staging/lustre/lustre/mgc/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += mgc.o
-mgc-y := mgc_request.o lproc_mgc.o
diff --git a/drivers/staging/lustre/lustre/mgc/lproc_mgc.c b/drivers/staging/lustre/lustre/mgc/lproc_mgc.c
deleted file mode 100644
index 34a9317d6d63..000000000000
--- a/drivers/staging/lustre/lustre/mgc/lproc_mgc.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/vfs.h>
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include "mgc_internal.h"
-
-LPROC_SEQ_FOPS_RO_TYPE(mgc, connect_flags);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, server_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, conn_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, import);
-LPROC_SEQ_FOPS_RO_TYPE(mgc, state);
-
-LPROC_SEQ_FOPS_WR_ONLY(mgc, ping);
-
-static int mgc_ir_state_seq_show(struct seq_file *m, void *v)
-{
-	return lprocfs_mgc_rd_ir_state(m, m->private);
-}
-LPROC_SEQ_FOPS_RO(mgc_ir_state);
-
-static struct lprocfs_vars lprocfs_mgc_obd_vars[] = {
-	{ "ping",	     &mgc_ping_fops,      NULL, 0222 },
-	{ "connect_flags",   &mgc_connect_flags_fops, NULL, 0 },
-	{ "mgs_server_uuid", &mgc_server_uuid_fops,   NULL, 0 },
-	{ "mgs_conn_uuid",   &mgc_conn_uuid_fops,     NULL, 0 },
-	{ "import",	     &mgc_import_fops,	NULL, 0 },
-	{ "state",	     &mgc_state_fops,	 NULL, 0 },
-	{ "ir_state",	     &mgc_ir_state_fops,  NULL, 0 },
-	{ NULL }
-};
-
-void lprocfs_mgc_init_vars(struct lprocfs_static_vars *lvars)
-{
-	lvars->obd_vars    = lprocfs_mgc_obd_vars;
-}
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_internal.h b/drivers/staging/lustre/lustre/mgc/mgc_internal.h
deleted file mode 100644
index 82fb8f46e037..000000000000
--- a/drivers/staging/lustre/lustre/mgc/mgc_internal.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _MGC_INTERNAL_H
-#define _MGC_INTERNAL_H
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/lustre/lustre_idl.h"
-#include "../include/lustre_lib.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lustre_log.h"
-#include "../include/lustre_export.h"
-
-void lprocfs_mgc_init_vars(struct lprocfs_static_vars *lvars);
-int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data);
-
-int mgc_process_log(struct obd_device *mgc, struct config_llog_data *cld);
-
-static inline int cld_is_sptlrpc(struct config_llog_data *cld)
-{
-	return cld->cld_type == CONFIG_T_SPTLRPC;
-}
-
-static inline int cld_is_recover(struct config_llog_data *cld)
-{
-	return cld->cld_type == CONFIG_T_RECOVER;
-}
-
-#endif  /* _MGC_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c
deleted file mode 100644
index 019ee2f256aa..000000000000
--- a/drivers/staging/lustre/lustre/mgc/mgc_request.c
+++ /dev/null
@@ -1,1760 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/mgc/mgc_request.c
- *
- * Author: Nathan Rutman <nathan@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_MGC
-#define D_MGC D_CONFIG /*|D_WARNING*/
-
-#include <linux/module.h>
-#include "../include/obd_class.h"
-#include "../include/lustre_dlm.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre_log.h"
-#include "../include/lustre_disk.h"
-
-#include "mgc_internal.h"
-
-static int mgc_name2resid(char *name, int len, struct ldlm_res_id *res_id,
-			  int type)
-{
-	__u64 resname = 0;
-
-	if (len > sizeof(resname)) {
-		CERROR("name too long: %s\n", name);
-		return -EINVAL;
-	}
-	if (len <= 0) {
-		CERROR("missing name: %s\n", name);
-		return -EINVAL;
-	}
-	memcpy(&resname, name, len);
-
-	/* Always use the same endianness for the resid */
-	memset(res_id, 0, sizeof(*res_id));
-	res_id->name[0] = cpu_to_le64(resname);
-	/* XXX: unfortunately, sptlprc and config llog share one lock */
-	switch (type) {
-	case CONFIG_T_CONFIG:
-	case CONFIG_T_SPTLRPC:
-		resname = 0;
-		break;
-	case CONFIG_T_RECOVER:
-	case CONFIG_T_PARAMS:
-		resname = type;
-		break;
-	default:
-		LBUG();
-	}
-	res_id->name[1] = cpu_to_le64(resname);
-	CDEBUG(D_MGC, "log %s to resid %#llx/%#llx (%.8s)\n", name,
-	       res_id->name[0], res_id->name[1], (char *)&res_id->name[0]);
-	return 0;
-}
-
-int mgc_fsname2resid(char *fsname, struct ldlm_res_id *res_id, int type)
-{
-	/* fsname is at most 8 chars long, maybe contain "-".
-	 * e.g. "lustre", "SUN-000" */
-	return mgc_name2resid(fsname, strlen(fsname), res_id, type);
-}
-EXPORT_SYMBOL(mgc_fsname2resid);
-
-static int mgc_logname2resid(char *logname, struct ldlm_res_id *res_id, int type)
-{
-	char *name_end;
-	int len;
-
-	/* logname consists of "fsname-nodetype".
-	 * e.g. "lustre-MDT0001", "SUN-000-client"
-	 * there is an exception: llog "params" */
-	name_end = strrchr(logname, '-');
-	if (!name_end)
-		len = strlen(logname);
-	else
-		len = name_end - logname;
-	return mgc_name2resid(logname, len, res_id, type);
-}
-
-/********************** config llog list **********************/
-static LIST_HEAD(config_llog_list);
-static DEFINE_SPINLOCK(config_list_lock);
-
-/* Take a reference to a config log */
-static int config_log_get(struct config_llog_data *cld)
-{
-	atomic_inc(&cld->cld_refcount);
-	CDEBUG(D_INFO, "log %s refs %d\n", cld->cld_logname,
-	       atomic_read(&cld->cld_refcount));
-	return 0;
-}
-
-/* Drop a reference to a config log.  When no longer referenced,
-   we can free the config log data */
-static void config_log_put(struct config_llog_data *cld)
-{
-	CDEBUG(D_INFO, "log %s refs %d\n", cld->cld_logname,
-	       atomic_read(&cld->cld_refcount));
-	LASSERT(atomic_read(&cld->cld_refcount) > 0);
-
-	/* spinlock to make sure no item with 0 refcount in the list */
-	if (atomic_dec_and_lock(&cld->cld_refcount, &config_list_lock)) {
-		list_del(&cld->cld_list_chain);
-		spin_unlock(&config_list_lock);
-
-		CDEBUG(D_MGC, "dropping config log %s\n", cld->cld_logname);
-
-		if (cld->cld_recover)
-			config_log_put(cld->cld_recover);
-		if (cld->cld_sptlrpc)
-			config_log_put(cld->cld_sptlrpc);
-		if (cld->cld_params)
-			config_log_put(cld->cld_params);
-		if (cld_is_sptlrpc(cld))
-			sptlrpc_conf_log_stop(cld->cld_logname);
-
-		class_export_put(cld->cld_mgcexp);
-		kfree(cld);
-	}
-}
-
-/* Find a config log by name */
-static
-struct config_llog_data *config_log_find(char *logname,
-					 struct config_llog_instance *cfg)
-{
-	struct config_llog_data *cld;
-	struct config_llog_data *found = NULL;
-	void *instance;
-
-	LASSERT(logname != NULL);
-
-	instance = cfg ? cfg->cfg_instance : NULL;
-	spin_lock(&config_list_lock);
-	list_for_each_entry(cld, &config_llog_list, cld_list_chain) {
-		/* check if instance equals */
-		if (instance != cld->cld_cfg.cfg_instance)
-			continue;
-
-		/* instance may be NULL, should check name */
-		if (strcmp(logname, cld->cld_logname) == 0) {
-			found = cld;
-			break;
-		}
-	}
-	if (found) {
-		atomic_inc(&found->cld_refcount);
-		LASSERT(found->cld_stopping == 0 || cld_is_sptlrpc(found) == 0);
-	}
-	spin_unlock(&config_list_lock);
-	return found;
-}
-
-static
-struct config_llog_data *do_config_log_add(struct obd_device *obd,
-					   char *logname,
-					   int type,
-					   struct config_llog_instance *cfg,
-					   struct super_block *sb)
-{
-	struct config_llog_data *cld;
-	int		      rc;
-
-	CDEBUG(D_MGC, "do adding config log %s:%p\n", logname,
-	       cfg ? cfg->cfg_instance : NULL);
-
-	cld = kzalloc(sizeof(*cld) + strlen(logname) + 1, GFP_NOFS);
-	if (!cld)
-		return ERR_PTR(-ENOMEM);
-
-	strcpy(cld->cld_logname, logname);
-	if (cfg)
-		cld->cld_cfg = *cfg;
-	else
-		cld->cld_cfg.cfg_callback = class_config_llog_handler;
-	mutex_init(&cld->cld_lock);
-	cld->cld_cfg.cfg_last_idx = 0;
-	cld->cld_cfg.cfg_flags = 0;
-	cld->cld_cfg.cfg_sb = sb;
-	cld->cld_type = type;
-	atomic_set(&cld->cld_refcount, 1);
-
-	/* Keep the mgc around until we are done */
-	cld->cld_mgcexp = class_export_get(obd->obd_self_export);
-
-	if (cld_is_sptlrpc(cld)) {
-		sptlrpc_conf_log_start(logname);
-		cld->cld_cfg.cfg_obdname = obd->obd_name;
-	}
-
-	rc = mgc_logname2resid(logname, &cld->cld_resid, type);
-
-	spin_lock(&config_list_lock);
-	list_add(&cld->cld_list_chain, &config_llog_list);
-	spin_unlock(&config_list_lock);
-
-	if (rc) {
-		config_log_put(cld);
-		return ERR_PTR(rc);
-	}
-
-	if (cld_is_sptlrpc(cld)) {
-		rc = mgc_process_log(obd, cld);
-		if (rc && rc != -ENOENT)
-			CERROR("failed processing sptlrpc log: %d\n", rc);
-	}
-
-	return cld;
-}
-
-static struct config_llog_data *config_recover_log_add(struct obd_device *obd,
-	char *fsname,
-	struct config_llog_instance *cfg,
-	struct super_block *sb)
-{
-	struct config_llog_instance lcfg = *cfg;
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct config_llog_data *cld;
-	char logname[32];
-
-	if (IS_OST(lsi))
-		return NULL;
-
-	/* for osp-on-ost, see lustre_start_osp() */
-	if (IS_MDT(lsi) && lcfg.cfg_instance)
-		return NULL;
-
-	/* we have to use different llog for clients and mdts for cmd
-	 * where only clients are notified if one of cmd server restarts */
-	LASSERT(strlen(fsname) < sizeof(logname) / 2);
-	strcpy(logname, fsname);
-	if (IS_SERVER(lsi)) { /* mdt */
-		LASSERT(lcfg.cfg_instance == NULL);
-		lcfg.cfg_instance = sb;
-		strcat(logname, "-mdtir");
-	} else {
-		LASSERT(lcfg.cfg_instance != NULL);
-		strcat(logname, "-cliir");
-	}
-
-	cld = do_config_log_add(obd, logname, CONFIG_T_RECOVER, &lcfg, sb);
-	return cld;
-}
-
-static struct config_llog_data *config_params_log_add(struct obd_device *obd,
-	struct config_llog_instance *cfg, struct super_block *sb)
-{
-	struct config_llog_instance	lcfg = *cfg;
-	struct config_llog_data		*cld;
-
-	lcfg.cfg_instance = sb;
-
-	cld = do_config_log_add(obd, PARAMS_FILENAME, CONFIG_T_PARAMS,
-				&lcfg, sb);
-
-	return cld;
-}
-
-/** Add this log to the list of active logs watched by an MGC.
- * Active means we're watching for updates.
- * We have one active log per "mount" - client instance or servername.
- * Each instance may be at a different point in the log.
- */
-static int config_log_add(struct obd_device *obd, char *logname,
-			  struct config_llog_instance *cfg,
-			  struct super_block *sb)
-{
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct config_llog_data *cld;
-	struct config_llog_data *sptlrpc_cld;
-	struct config_llog_data *params_cld;
-	char			seclogname[32];
-	char			*ptr;
-	int			rc;
-
-	CDEBUG(D_MGC, "adding config log %s:%p\n", logname, cfg->cfg_instance);
-
-	/*
-	 * for each regular log, the depended sptlrpc log name is
-	 * <fsname>-sptlrpc. multiple regular logs may share one sptlrpc log.
-	 */
-	ptr = strrchr(logname, '-');
-	if (ptr == NULL || ptr - logname > 8) {
-		CERROR("logname %s is too long\n", logname);
-		return -EINVAL;
-	}
-
-	memcpy(seclogname, logname, ptr - logname);
-	strcpy(seclogname + (ptr - logname), "-sptlrpc");
-
-	sptlrpc_cld = config_log_find(seclogname, NULL);
-	if (sptlrpc_cld == NULL) {
-		sptlrpc_cld = do_config_log_add(obd, seclogname,
-						CONFIG_T_SPTLRPC, NULL, NULL);
-		if (IS_ERR(sptlrpc_cld)) {
-			CERROR("can't create sptlrpc log: %s\n", seclogname);
-			rc = PTR_ERR(sptlrpc_cld);
-			goto out_err;
-		}
-	}
-	params_cld = config_params_log_add(obd, cfg, sb);
-	if (IS_ERR(params_cld)) {
-		rc = PTR_ERR(params_cld);
-		CERROR("%s: can't create params log: rc = %d\n",
-		       obd->obd_name, rc);
-		goto out_err1;
-	}
-
-	cld = do_config_log_add(obd, logname, CONFIG_T_CONFIG, cfg, sb);
-	if (IS_ERR(cld)) {
-		CERROR("can't create log: %s\n", logname);
-		rc = PTR_ERR(cld);
-		goto out_err2;
-	}
-
-	cld->cld_sptlrpc = sptlrpc_cld;
-	cld->cld_params = params_cld;
-
-	LASSERT(lsi->lsi_lmd);
-	if (!(lsi->lsi_lmd->lmd_flags & LMD_FLG_NOIR)) {
-		struct config_llog_data *recover_cld;
-		*strrchr(seclogname, '-') = 0;
-		recover_cld = config_recover_log_add(obd, seclogname, cfg, sb);
-		if (IS_ERR(recover_cld)) {
-			rc = PTR_ERR(recover_cld);
-			goto out_err3;
-		}
-		cld->cld_recover = recover_cld;
-	}
-
-	return 0;
-
-out_err3:
-	config_log_put(cld);
-
-out_err2:
-	config_log_put(params_cld);
-
-out_err1:
-	config_log_put(sptlrpc_cld);
-
-out_err:
-	return rc;
-}
-
-DEFINE_MUTEX(llog_process_lock);
-
-/** Stop watching for updates on this log.
- */
-static int config_log_end(char *logname, struct config_llog_instance *cfg)
-{
-	struct config_llog_data *cld;
-	struct config_llog_data *cld_sptlrpc = NULL;
-	struct config_llog_data *cld_params = NULL;
-	struct config_llog_data *cld_recover = NULL;
-	int rc = 0;
-
-	cld = config_log_find(logname, cfg);
-	if (cld == NULL)
-		return -ENOENT;
-
-	mutex_lock(&cld->cld_lock);
-	/*
-	 * if cld_stopping is set, it means we didn't start the log thus
-	 * not owning the start ref. this can happen after previous umount:
-	 * the cld still hanging there waiting for lock cancel, and we
-	 * remount again but failed in the middle and call log_end without
-	 * calling start_log.
-	 */
-	if (unlikely(cld->cld_stopping)) {
-		mutex_unlock(&cld->cld_lock);
-		/* drop the ref from the find */
-		config_log_put(cld);
-		return rc;
-	}
-
-	cld->cld_stopping = 1;
-
-	cld_recover = cld->cld_recover;
-	cld->cld_recover = NULL;
-	mutex_unlock(&cld->cld_lock);
-
-	if (cld_recover) {
-		mutex_lock(&cld_recover->cld_lock);
-		cld_recover->cld_stopping = 1;
-		mutex_unlock(&cld_recover->cld_lock);
-		config_log_put(cld_recover);
-	}
-
-	spin_lock(&config_list_lock);
-	cld_sptlrpc = cld->cld_sptlrpc;
-	cld->cld_sptlrpc = NULL;
-	cld_params = cld->cld_params;
-	cld->cld_params = NULL;
-	spin_unlock(&config_list_lock);
-
-	if (cld_sptlrpc)
-		config_log_put(cld_sptlrpc);
-
-	if (cld_params) {
-		mutex_lock(&cld_params->cld_lock);
-		cld_params->cld_stopping = 1;
-		mutex_unlock(&cld_params->cld_lock);
-		config_log_put(cld_params);
-	}
-
-	/* drop the ref from the find */
-	config_log_put(cld);
-	/* drop the start ref */
-	config_log_put(cld);
-
-	CDEBUG(D_MGC, "end config log %s (%d)\n", logname ? logname : "client",
-	       rc);
-	return rc;
-}
-
-int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data)
-{
-	struct obd_device       *obd = data;
-	struct obd_import       *imp;
-	struct obd_connect_data *ocd;
-	struct config_llog_data *cld;
-
-	LPROCFS_CLIMP_CHECK(obd);
-	imp = obd->u.cli.cl_import;
-	ocd = &imp->imp_connect_data;
-
-	seq_printf(m, "imperative_recovery: %s\n",
-		      OCD_HAS_FLAG(ocd, IMP_RECOV) ? "ENABLED" : "DISABLED");
-	seq_printf(m, "client_state:\n");
-
-	spin_lock(&config_list_lock);
-	list_for_each_entry(cld, &config_llog_list, cld_list_chain) {
-		if (cld->cld_recover == NULL)
-			continue;
-		seq_printf(m,  "    - { client: %s, nidtbl_version: %u }\n",
-			       cld->cld_logname,
-			       cld->cld_recover->cld_cfg.cfg_last_idx);
-	}
-	spin_unlock(&config_list_lock);
-
-	LPROCFS_CLIMP_EXIT(obd);
-	return 0;
-}
-
-/* reenqueue any lost locks */
-#define RQ_RUNNING 0x1
-#define RQ_NOW     0x2
-#define RQ_LATER   0x4
-#define RQ_STOP    0x8
-#define RQ_PRECLEANUP  0x10
-static int rq_state;
-static wait_queue_head_t	    rq_waitq;
-static DECLARE_COMPLETION(rq_exit);
-static DECLARE_COMPLETION(rq_start);
-
-static void do_requeue(struct config_llog_data *cld)
-{
-	LASSERT(atomic_read(&cld->cld_refcount) > 0);
-
-	/* Do not run mgc_process_log on a disconnected export or an
-	   export which is being disconnected. Take the client
-	   semaphore to make the check non-racy. */
-	down_read(&cld->cld_mgcexp->exp_obd->u.cli.cl_sem);
-	if (cld->cld_mgcexp->exp_obd->u.cli.cl_conn_count != 0) {
-		CDEBUG(D_MGC, "updating log %s\n", cld->cld_logname);
-		mgc_process_log(cld->cld_mgcexp->exp_obd, cld);
-	} else {
-		CDEBUG(D_MGC, "disconnecting, won't update log %s\n",
-		       cld->cld_logname);
-	}
-	up_read(&cld->cld_mgcexp->exp_obd->u.cli.cl_sem);
-}
-
-/* this timeout represents how many seconds MGC should wait before
- * requeue config and recover lock to the MGS. We need to randomize this
- * in order to not flood the MGS.
- */
-#define MGC_TIMEOUT_MIN_SECONDS   5
-#define MGC_TIMEOUT_RAND_CENTISEC 0x1ff /* ~500 */
-
-static int mgc_requeue_thread(void *data)
-{
-	bool first = true;
-
-	CDEBUG(D_MGC, "Starting requeue thread\n");
-
-	/* Keep trying failed locks periodically */
-	spin_lock(&config_list_lock);
-	rq_state |= RQ_RUNNING;
-	while (1) {
-		struct l_wait_info lwi;
-		struct config_llog_data *cld, *cld_prev;
-		int rand = cfs_rand() & MGC_TIMEOUT_RAND_CENTISEC;
-		int stopped = !!(rq_state & RQ_STOP);
-		int to;
-
-		/* Any new or requeued lostlocks will change the state */
-		rq_state &= ~(RQ_NOW | RQ_LATER);
-		spin_unlock(&config_list_lock);
-
-		if (first) {
-			first = false;
-			complete(&rq_start);
-		}
-
-		/* Always wait a few seconds to allow the server who
-		   caused the lock revocation to finish its setup, plus some
-		   random so everyone doesn't try to reconnect at once. */
-		to = MGC_TIMEOUT_MIN_SECONDS * HZ;
-		to += rand * HZ / 100; /* rand is centi-seconds */
-		lwi = LWI_TIMEOUT(to, NULL, NULL);
-		l_wait_event(rq_waitq, rq_state & (RQ_STOP | RQ_PRECLEANUP),
-			     &lwi);
-
-		/*
-		 * iterate & processing through the list. for each cld, process
-		 * its depending sptlrpc cld firstly (if any) and then itself.
-		 *
-		 * it's guaranteed any item in the list must have
-		 * reference > 0; and if cld_lostlock is set, at
-		 * least one reference is taken by the previous enqueue.
-		 */
-		cld_prev = NULL;
-
-		spin_lock(&config_list_lock);
-		rq_state &= ~RQ_PRECLEANUP;
-		list_for_each_entry(cld, &config_llog_list,
-					cld_list_chain) {
-			if (!cld->cld_lostlock)
-				continue;
-
-			spin_unlock(&config_list_lock);
-
-			LASSERT(atomic_read(&cld->cld_refcount) > 0);
-
-			/* Whether we enqueued again or not in mgc_process_log,
-			 * we're done with the ref from the old enqueue */
-			if (cld_prev)
-				config_log_put(cld_prev);
-			cld_prev = cld;
-
-			cld->cld_lostlock = 0;
-			if (likely(!stopped))
-				do_requeue(cld);
-
-			spin_lock(&config_list_lock);
-		}
-		spin_unlock(&config_list_lock);
-		if (cld_prev)
-			config_log_put(cld_prev);
-
-		/* break after scanning the list so that we can drop
-		 * refcount to losing lock clds */
-		if (unlikely(stopped)) {
-			spin_lock(&config_list_lock);
-			break;
-		}
-
-		/* Wait a bit to see if anyone else needs a requeue */
-		lwi = (struct l_wait_info) { 0 };
-		l_wait_event(rq_waitq, rq_state & (RQ_NOW | RQ_STOP),
-			     &lwi);
-		spin_lock(&config_list_lock);
-	}
-	/* spinlock and while guarantee RQ_NOW and RQ_LATER are not set */
-	rq_state &= ~RQ_RUNNING;
-	spin_unlock(&config_list_lock);
-
-	complete(&rq_exit);
-
-	CDEBUG(D_MGC, "Ending requeue thread\n");
-	return 0;
-}
-
-/* Add a cld to the list to requeue.  Start the requeue thread if needed.
-   We are responsible for dropping the config log reference from here on out. */
-static void mgc_requeue_add(struct config_llog_data *cld)
-{
-	CDEBUG(D_INFO, "log %s: requeue (r=%d sp=%d st=%x)\n",
-	       cld->cld_logname, atomic_read(&cld->cld_refcount),
-	       cld->cld_stopping, rq_state);
-	LASSERT(atomic_read(&cld->cld_refcount) > 0);
-
-	mutex_lock(&cld->cld_lock);
-	if (cld->cld_stopping || cld->cld_lostlock) {
-		mutex_unlock(&cld->cld_lock);
-		return;
-	}
-	/* this refcount will be released in mgc_requeue_thread. */
-	config_log_get(cld);
-	cld->cld_lostlock = 1;
-	mutex_unlock(&cld->cld_lock);
-
-	/* Hold lock for rq_state */
-	spin_lock(&config_list_lock);
-	if (rq_state & RQ_STOP) {
-		spin_unlock(&config_list_lock);
-		cld->cld_lostlock = 0;
-		config_log_put(cld);
-	} else {
-		rq_state |= RQ_NOW;
-		spin_unlock(&config_list_lock);
-		wake_up(&rq_waitq);
-	}
-}
-
-static int mgc_llog_init(const struct lu_env *env, struct obd_device *obd)
-{
-	struct llog_ctxt	*ctxt;
-	int			 rc;
-
-	/* setup only remote ctxt, the local disk context is switched per each
-	 * filesystem during mgc_fs_setup() */
-	rc = llog_setup(env, obd, &obd->obd_olg, LLOG_CONFIG_REPL_CTXT, obd,
-			&llog_client_ops);
-	if (rc)
-		return rc;
-
-	ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
-	LASSERT(ctxt);
-
-	llog_initiator_connect(ctxt);
-	llog_ctxt_put(ctxt);
-
-	return 0;
-}
-
-static int mgc_llog_fini(const struct lu_env *env, struct obd_device *obd)
-{
-	struct llog_ctxt *ctxt;
-
-	ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
-	if (ctxt)
-		llog_cleanup(env, ctxt);
-
-	return 0;
-}
-
-static atomic_t mgc_count = ATOMIC_INIT(0);
-static int mgc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
-{
-	int rc = 0;
-	int temp;
-
-	switch (stage) {
-	case OBD_CLEANUP_EARLY:
-		break;
-	case OBD_CLEANUP_EXPORTS:
-		if (atomic_dec_and_test(&mgc_count)) {
-			LASSERT(rq_state & RQ_RUNNING);
-			/* stop requeue thread */
-			temp = RQ_STOP;
-		} else {
-			/* wakeup requeue thread to clean our cld */
-			temp = RQ_NOW | RQ_PRECLEANUP;
-		}
-		spin_lock(&config_list_lock);
-		rq_state |= temp;
-		spin_unlock(&config_list_lock);
-		wake_up(&rq_waitq);
-		if (temp & RQ_STOP)
-			wait_for_completion(&rq_exit);
-		obd_cleanup_client_import(obd);
-		rc = mgc_llog_fini(NULL, obd);
-		if (rc != 0)
-			CERROR("failed to cleanup llogging subsystems\n");
-		break;
-	}
-	return rc;
-}
-
-static int mgc_cleanup(struct obd_device *obd)
-{
-	/* COMPAT_146 - old config logs may have added profiles we don't
-	   know about */
-	if (obd->obd_type->typ_refcnt <= 1)
-		/* Only for the last mgc */
-		class_del_profiles();
-
-	lprocfs_obd_cleanup(obd);
-	ptlrpcd_decref();
-
-	return client_obd_cleanup(obd);
-}
-
-static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	struct lprocfs_static_vars lvars = { NULL };
-	int rc;
-
-	ptlrpcd_addref();
-
-	rc = client_obd_setup(obd, lcfg);
-	if (rc)
-		goto err_decref;
-
-	rc = mgc_llog_init(NULL, obd);
-	if (rc) {
-		CERROR("failed to setup llogging subsystems\n");
-		goto err_cleanup;
-	}
-
-	lprocfs_mgc_init_vars(&lvars);
-	lprocfs_obd_setup(obd, lvars.obd_vars, lvars.sysfs_vars);
-	sptlrpc_lprocfs_cliobd_attach(obd);
-
-	if (atomic_inc_return(&mgc_count) == 1) {
-		rq_state = 0;
-		init_waitqueue_head(&rq_waitq);
-
-		/* start requeue thread */
-		rc = PTR_ERR(kthread_run(mgc_requeue_thread, NULL,
-					     "ll_cfg_requeue"));
-		if (IS_ERR_VALUE(rc)) {
-			CERROR("%s: Cannot start requeue thread (%d),no more log updates!\n",
-			       obd->obd_name, rc);
-			goto err_cleanup;
-		}
-		/* rc is the task_struct pointer of mgc_requeue_thread. */
-		rc = 0;
-		wait_for_completion(&rq_start);
-	}
-
-	return rc;
-
-err_cleanup:
-	client_obd_cleanup(obd);
-err_decref:
-	ptlrpcd_decref();
-	return rc;
-}
-
-/* based on ll_mdc_blocking_ast */
-static int mgc_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
-			    void *data, int flag)
-{
-	struct lustre_handle lockh;
-	struct config_llog_data *cld = (struct config_llog_data *)data;
-	int rc = 0;
-
-	switch (flag) {
-	case LDLM_CB_BLOCKING:
-		/* mgs wants the lock, give it up... */
-		LDLM_DEBUG(lock, "MGC blocking CB");
-		ldlm_lock2handle(lock, &lockh);
-		rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
-		break;
-	case LDLM_CB_CANCELING:
-		/* We've given up the lock, prepare ourselves to update. */
-		LDLM_DEBUG(lock, "MGC cancel CB");
-
-		CDEBUG(D_MGC, "Lock res "DLDLMRES" (%.8s)\n",
-		       PLDLMRES(lock->l_resource),
-		       (char *)&lock->l_resource->lr_name.name[0]);
-
-		if (!cld) {
-			CDEBUG(D_INFO, "missing data, won't requeue\n");
-			break;
-		}
-
-		/* held at mgc_process_log(). */
-		LASSERT(atomic_read(&cld->cld_refcount) > 0);
-		/* Are we done with this log? */
-		if (cld->cld_stopping) {
-			CDEBUG(D_MGC, "log %s: stopping, won't requeue\n",
-			       cld->cld_logname);
-			config_log_put(cld);
-			break;
-		}
-		/* Make sure not to re-enqueue when the mgc is stopping
-		   (we get called from client_disconnect_export) */
-		if (!lock->l_conn_export ||
-		    !lock->l_conn_export->exp_obd->u.cli.cl_conn_count) {
-			CDEBUG(D_MGC, "log %.8s: disconnecting, won't requeue\n",
-			       cld->cld_logname);
-			config_log_put(cld);
-			break;
-		}
-
-		/* Re-enqueue now */
-		mgc_requeue_add(cld);
-		config_log_put(cld);
-		break;
-	default:
-		LBUG();
-	}
-
-	return rc;
-}
-
-/* Not sure where this should go... */
-/* This is the timeout value for MGS_CONNECT request plus a ping interval, such
- * that we can have a chance to try the secondary MGS if any. */
-#define  MGC_ENQUEUE_LIMIT (INITIAL_CONNECT_TIMEOUT + (AT_OFF ? 0 : at_min) \
-				+ PING_INTERVAL)
-#define  MGC_TARGET_REG_LIMIT 10
-#define  MGC_SEND_PARAM_LIMIT 10
-
-/* Send parameter to MGS*/
-static int mgc_set_mgs_param(struct obd_export *exp,
-			     struct mgs_send_param *msp)
-{
-	struct ptlrpc_request *req;
-	struct mgs_send_param *req_msp, *rep_msp;
-	int rc;
-
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
-					&RQF_MGS_SET_INFO, LUSTRE_MGS_VERSION,
-					MGS_SET_INFO);
-	if (!req)
-		return -ENOMEM;
-
-	req_msp = req_capsule_client_get(&req->rq_pill, &RMF_MGS_SEND_PARAM);
-	if (!req_msp) {
-		ptlrpc_req_finished(req);
-		return -ENOMEM;
-	}
-
-	memcpy(req_msp, msp, sizeof(*req_msp));
-	ptlrpc_request_set_replen(req);
-
-	/* Limit how long we will wait for the enqueue to complete */
-	req->rq_delay_limit = MGC_SEND_PARAM_LIMIT;
-	rc = ptlrpc_queue_wait(req);
-	if (!rc) {
-		rep_msp = req_capsule_server_get(&req->rq_pill, &RMF_MGS_SEND_PARAM);
-		memcpy(msp, rep_msp, sizeof(*rep_msp));
-	}
-
-	ptlrpc_req_finished(req);
-
-	return rc;
-}
-
-/* Take a config lock so we can get cancel notifications */
-static int mgc_enqueue(struct obd_export *exp, struct lov_stripe_md *lsm,
-		       __u32 type, ldlm_policy_data_t *policy, __u32 mode,
-		       __u64 *flags, void *bl_cb, void *cp_cb, void *gl_cb,
-		       void *data, __u32 lvb_len, void *lvb_swabber,
-		       struct lustre_handle *lockh)
-{
-	struct config_llog_data *cld = (struct config_llog_data *)data;
-	struct ldlm_enqueue_info einfo = {
-		.ei_type	= type,
-		.ei_mode	= mode,
-		.ei_cb_bl	= mgc_blocking_ast,
-		.ei_cb_cp	= ldlm_completion_ast,
-	};
-	struct ptlrpc_request *req;
-	int short_limit = cld_is_sptlrpc(cld);
-	int rc;
-
-	CDEBUG(D_MGC, "Enqueue for %s (res %#llx)\n", cld->cld_logname,
-	       cld->cld_resid.name[0]);
-
-	/* We need a callback for every lockholder, so don't try to
-	   ldlm_lock_match (see rev 1.1.2.11.2.47) */
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
-					&RQF_LDLM_ENQUEUE, LUSTRE_DLM_VERSION,
-					LDLM_ENQUEUE);
-	if (req == NULL)
-		return -ENOMEM;
-
-	req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER, 0);
-	ptlrpc_request_set_replen(req);
-
-	/* check if this is server or client */
-	if (cld->cld_cfg.cfg_sb) {
-		struct lustre_sb_info *lsi = s2lsi(cld->cld_cfg.cfg_sb);
-		if (lsi && IS_SERVER(lsi))
-			short_limit = 1;
-	}
-	/* Limit how long we will wait for the enqueue to complete */
-	req->rq_delay_limit = short_limit ? 5 : MGC_ENQUEUE_LIMIT;
-	rc = ldlm_cli_enqueue(exp, &req, &einfo, &cld->cld_resid, NULL, flags,
-			      NULL, 0, LVB_T_NONE, lockh, 0);
-	/* A failed enqueue should still call the mgc_blocking_ast,
-	   where it will be requeued if needed ("grant failed"). */
-	ptlrpc_req_finished(req);
-	return rc;
-}
-
-static void mgc_notify_active(struct obd_device *unused)
-{
-	/* wakeup mgc_requeue_thread to requeue mgc lock */
-	spin_lock(&config_list_lock);
-	rq_state |= RQ_NOW;
-	spin_unlock(&config_list_lock);
-	wake_up(&rq_waitq);
-
-	/* TODO: Help the MGS rebuild nidtbl. -jay */
-}
-
-/* Send target_reg message to MGS */
-static int mgc_target_register(struct obd_export *exp,
-			       struct mgs_target_info *mti)
-{
-	struct ptlrpc_request  *req;
-	struct mgs_target_info *req_mti, *rep_mti;
-	int		     rc;
-
-	req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp),
-					&RQF_MGS_TARGET_REG, LUSTRE_MGS_VERSION,
-					MGS_TARGET_REG);
-	if (req == NULL)
-		return -ENOMEM;
-
-	req_mti = req_capsule_client_get(&req->rq_pill, &RMF_MGS_TARGET_INFO);
-	if (!req_mti) {
-		ptlrpc_req_finished(req);
-		return -ENOMEM;
-	}
-
-	memcpy(req_mti, mti, sizeof(*req_mti));
-	ptlrpc_request_set_replen(req);
-	CDEBUG(D_MGC, "register %s\n", mti->mti_svname);
-	/* Limit how long we will wait for the enqueue to complete */
-	req->rq_delay_limit = MGC_TARGET_REG_LIMIT;
-
-	rc = ptlrpc_queue_wait(req);
-	if (!rc) {
-		rep_mti = req_capsule_server_get(&req->rq_pill,
-						 &RMF_MGS_TARGET_INFO);
-		memcpy(mti, rep_mti, sizeof(*rep_mti));
-		CDEBUG(D_MGC, "register %s got index = %d\n",
-		       mti->mti_svname, mti->mti_stripe_index);
-	}
-	ptlrpc_req_finished(req);
-
-	return rc;
-}
-
-static int mgc_set_info_async(const struct lu_env *env, struct obd_export *exp,
-		       u32 keylen, void *key, u32 vallen,
-		       void *val, struct ptlrpc_request_set *set)
-{
-	int rc = -EINVAL;
-
-	/* Turn off initial_recov after we try all backup servers once */
-	if (KEY_IS(KEY_INIT_RECOV_BACKUP)) {
-		struct obd_import *imp = class_exp2cliimp(exp);
-		int value;
-		if (vallen != sizeof(int))
-			return -EINVAL;
-		value = *(int *)val;
-		CDEBUG(D_MGC, "InitRecov %s %d/d%d:i%d:r%d:or%d:%s\n",
-		       imp->imp_obd->obd_name, value,
-		       imp->imp_deactive, imp->imp_invalid,
-		       imp->imp_replayable, imp->imp_obd->obd_replayable,
-		       ptlrpc_import_state_name(imp->imp_state));
-		/* Resurrect if we previously died */
-		if ((imp->imp_state != LUSTRE_IMP_FULL &&
-		     imp->imp_state != LUSTRE_IMP_NEW) || value > 1)
-			ptlrpc_reconnect_import(imp);
-		return 0;
-	}
-	if (KEY_IS(KEY_SET_INFO)) {
-		struct mgs_send_param *msp;
-
-		msp = (struct mgs_send_param *)val;
-		rc =  mgc_set_mgs_param(exp, msp);
-		return rc;
-	}
-	if (KEY_IS(KEY_MGSSEC)) {
-		struct client_obd     *cli = &exp->exp_obd->u.cli;
-		struct sptlrpc_flavor  flvr;
-
-		/*
-		 * empty string means using current flavor, if which haven't
-		 * been set yet, set it as null.
-		 *
-		 * if flavor has been set previously, check the asking flavor
-		 * must match the existing one.
-		 */
-		if (vallen == 0) {
-			if (cli->cl_flvr_mgc.sf_rpc != SPTLRPC_FLVR_INVALID)
-				return 0;
-			val = "null";
-			vallen = 4;
-		}
-
-		rc = sptlrpc_parse_flavor(val, &flvr);
-		if (rc) {
-			CERROR("invalid sptlrpc flavor %s to MGS\n",
-			       (char *) val);
-			return rc;
-		}
-
-		/*
-		 * caller already hold a mutex
-		 */
-		if (cli->cl_flvr_mgc.sf_rpc == SPTLRPC_FLVR_INVALID) {
-			cli->cl_flvr_mgc = flvr;
-		} else if (memcmp(&cli->cl_flvr_mgc, &flvr,
-				  sizeof(flvr)) != 0) {
-			char    str[20];
-
-			sptlrpc_flavor2name(&cli->cl_flvr_mgc,
-					    str, sizeof(str));
-			LCONSOLE_ERROR("asking sptlrpc flavor %s to MGS but currently %s is in use\n",
-				       (char *) val, str);
-			rc = -EPERM;
-		}
-		return rc;
-	}
-
-	return rc;
-}
-
-static int mgc_get_info(const struct lu_env *env, struct obd_export *exp,
-			__u32 keylen, void *key, __u32 *vallen, void *val,
-			struct lov_stripe_md *unused)
-{
-	int rc = -EINVAL;
-
-	if (KEY_IS(KEY_CONN_DATA)) {
-		struct obd_import *imp = class_exp2cliimp(exp);
-		struct obd_connect_data *data = val;
-
-		if (*vallen == sizeof(*data)) {
-			*data = imp->imp_connect_data;
-			rc = 0;
-		}
-	}
-
-	return rc;
-}
-
-static int mgc_import_event(struct obd_device *obd,
-			    struct obd_import *imp,
-			    enum obd_import_event event)
-{
-	LASSERT(imp->imp_obd == obd);
-	CDEBUG(D_MGC, "import event %#x\n", event);
-
-	switch (event) {
-	case IMP_EVENT_DISCON:
-		/* MGC imports should not wait for recovery */
-		if (OCD_HAS_FLAG(&imp->imp_connect_data, IMP_RECOV))
-			ptlrpc_pinger_ir_down();
-		break;
-	case IMP_EVENT_INACTIVE:
-		break;
-	case IMP_EVENT_INVALIDATE: {
-		struct ldlm_namespace *ns = obd->obd_namespace;
-		ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY);
-		break;
-	}
-	case IMP_EVENT_ACTIVE:
-		CDEBUG(D_INFO, "%s: Reactivating import\n", obd->obd_name);
-		/* Clearing obd_no_recov allows us to continue pinging */
-		obd->obd_no_recov = 0;
-		mgc_notify_active(obd);
-		if (OCD_HAS_FLAG(&imp->imp_connect_data, IMP_RECOV))
-			ptlrpc_pinger_ir_up();
-		break;
-	case IMP_EVENT_OCD:
-		break;
-	case IMP_EVENT_DEACTIVATE:
-	case IMP_EVENT_ACTIVATE:
-		break;
-	default:
-		CERROR("Unknown import event %#x\n", event);
-		LBUG();
-	}
-	return 0;
-}
-
-enum {
-	CONFIG_READ_NRPAGES_INIT = 1 << (20 - PAGE_CACHE_SHIFT),
-	CONFIG_READ_NRPAGES      = 4
-};
-
-static int mgc_apply_recover_logs(struct obd_device *mgc,
-				  struct config_llog_data *cld,
-				  __u64 max_version,
-				  void *data, int datalen, bool mne_swab)
-{
-	struct config_llog_instance *cfg = &cld->cld_cfg;
-	struct lustre_sb_info       *lsi = s2lsi(cfg->cfg_sb);
-	struct mgs_nidtbl_entry *entry;
-	struct lustre_cfg       *lcfg;
-	struct lustre_cfg_bufs   bufs;
-	u64   prev_version = 0;
-	char *inst;
-	char *buf;
-	int   bufsz;
-	int   pos;
-	int   rc  = 0;
-	int   off = 0;
-
-	LASSERT(cfg->cfg_instance != NULL);
-	LASSERT(cfg->cfg_sb == cfg->cfg_instance);
-
-	inst = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
-	if (!inst)
-		return -ENOMEM;
-
-	if (!IS_SERVER(lsi)) {
-		pos = snprintf(inst, PAGE_CACHE_SIZE, "%p", cfg->cfg_instance);
-		if (pos >= PAGE_CACHE_SIZE) {
-			kfree(inst);
-			return -E2BIG;
-		}
-	} else {
-		LASSERT(IS_MDT(lsi));
-		rc = server_name2svname(lsi->lsi_svname, inst, NULL,
-					PAGE_CACHE_SIZE);
-		if (rc) {
-			kfree(inst);
-			return -EINVAL;
-		}
-		pos = strlen(inst);
-	}
-
-	++pos;
-	buf   = inst + pos;
-	bufsz = PAGE_CACHE_SIZE - pos;
-
-	while (datalen > 0) {
-		int   entry_len = sizeof(*entry);
-		int   is_ost;
-		struct obd_device *obd;
-		char *obdname;
-		char *cname;
-		char *params;
-		char *uuid;
-
-		rc = -EINVAL;
-		if (datalen < sizeof(*entry))
-			break;
-
-		entry = (typeof(entry))(data + off);
-
-		/* sanity check */
-		if (entry->mne_nid_type != 0) /* only support type 0 for ipv4 */
-			break;
-		if (entry->mne_nid_count == 0) /* at least one nid entry */
-			break;
-		if (entry->mne_nid_size != sizeof(lnet_nid_t))
-			break;
-
-		entry_len += entry->mne_nid_count * entry->mne_nid_size;
-		if (datalen < entry_len) /* must have entry_len at least */
-			break;
-
-		/* Keep this swab for normal mixed endian handling. LU-1644 */
-		if (mne_swab)
-			lustre_swab_mgs_nidtbl_entry(entry);
-		if (entry->mne_length > PAGE_CACHE_SIZE) {
-			CERROR("MNE too large (%u)\n", entry->mne_length);
-			break;
-		}
-
-		if (entry->mne_length < entry_len)
-			break;
-
-		off     += entry->mne_length;
-		datalen -= entry->mne_length;
-		if (datalen < 0)
-			break;
-
-		if (entry->mne_version > max_version) {
-			CERROR("entry index(%lld) is over max_index(%lld)\n",
-			       entry->mne_version, max_version);
-			break;
-		}
-
-		if (prev_version >= entry->mne_version) {
-			CERROR("index unsorted, prev %lld, now %lld\n",
-			       prev_version, entry->mne_version);
-			break;
-		}
-		prev_version = entry->mne_version;
-
-		/*
-		 * Write a string with format "nid::instance" to
-		 * lustre/<osc|mdc>/<target>-<osc|mdc>-<instance>/import.
-		 */
-
-		is_ost = entry->mne_type == LDD_F_SV_TYPE_OST;
-		memset(buf, 0, bufsz);
-		obdname = buf;
-		pos = 0;
-
-		/* lustre-OST0001-osc-<instance #> */
-		strcpy(obdname, cld->cld_logname);
-		cname = strrchr(obdname, '-');
-		if (cname == NULL) {
-			CERROR("mgc %s: invalid logname %s\n",
-			       mgc->obd_name, obdname);
-			break;
-		}
-
-		pos = cname - obdname;
-		obdname[pos] = 0;
-		pos += sprintf(obdname + pos, "-%s%04x",
-				  is_ost ? "OST" : "MDT", entry->mne_index);
-
-		cname = is_ost ? "osc" : "mdc";
-		pos += sprintf(obdname + pos, "-%s-%s", cname, inst);
-		lustre_cfg_bufs_reset(&bufs, obdname);
-
-		/* find the obd by obdname */
-		obd = class_name2obd(obdname);
-		if (obd == NULL) {
-			CDEBUG(D_INFO, "mgc %s: cannot find obdname %s\n",
-			       mgc->obd_name, obdname);
-			rc = 0;
-			/* this is a safe race, when the ost is starting up...*/
-			continue;
-		}
-
-		/* osc.import = "connection=<Conn UUID>::<target instance>" */
-		++pos;
-		params = buf + pos;
-		pos += sprintf(params, "%s.import=%s", cname, "connection=");
-		uuid = buf + pos;
-
-		down_read(&obd->u.cli.cl_sem);
-		if (obd->u.cli.cl_import == NULL) {
-			/* client does not connect to the OST yet */
-			up_read(&obd->u.cli.cl_sem);
-			rc = 0;
-			continue;
-		}
-
-		/* TODO: iterate all nids to find one */
-		/* find uuid by nid */
-		rc = client_import_find_conn(obd->u.cli.cl_import,
-					     entry->u.nids[0],
-					     (struct obd_uuid *)uuid);
-		up_read(&obd->u.cli.cl_sem);
-		if (rc < 0) {
-			CERROR("mgc: cannot find uuid by nid %s\n",
-			       libcfs_nid2str(entry->u.nids[0]));
-			break;
-		}
-
-		CDEBUG(D_INFO, "Find uuid %s by nid %s\n",
-		       uuid, libcfs_nid2str(entry->u.nids[0]));
-
-		pos += strlen(uuid);
-		pos += sprintf(buf + pos, "::%u", entry->mne_instance);
-		LASSERT(pos < bufsz);
-
-		lustre_cfg_bufs_set_string(&bufs, 1, params);
-
-		rc = -ENOMEM;
-		lcfg = lustre_cfg_new(LCFG_PARAM, &bufs);
-		if (lcfg == NULL) {
-			CERROR("mgc: cannot allocate memory\n");
-			break;
-		}
-
-		CDEBUG(D_INFO, "ir apply logs %lld/%lld for %s -> %s\n",
-		       prev_version, max_version, obdname, params);
-
-		rc = class_process_config(lcfg);
-		lustre_cfg_free(lcfg);
-		if (rc)
-			CDEBUG(D_INFO, "process config for %s error %d\n",
-			       obdname, rc);
-
-		/* continue, even one with error */
-	}
-
-	kfree(inst);
-	return rc;
-}
-
-/**
- * This function is called if this client was notified for target restarting
- * by the MGS. A CONFIG_READ RPC is going to send to fetch recovery logs.
- */
-static int mgc_process_recover_log(struct obd_device *obd,
-				   struct config_llog_data *cld)
-{
-	struct ptlrpc_request *req = NULL;
-	struct config_llog_instance *cfg = &cld->cld_cfg;
-	struct mgs_config_body *body;
-	struct mgs_config_res  *res;
-	struct ptlrpc_bulk_desc *desc;
-	struct page **pages;
-	int nrpages;
-	bool eof = true;
-	bool mne_swab = false;
-	int i;
-	int ealen;
-	int rc;
-
-	/* allocate buffer for bulk transfer.
-	 * if this is the first time for this mgs to read logs,
-	 * CONFIG_READ_NRPAGES_INIT will be used since it will read all logs
-	 * once; otherwise, it only reads increment of logs, this should be
-	 * small and CONFIG_READ_NRPAGES will be used.
-	 */
-	nrpages = CONFIG_READ_NRPAGES;
-	if (cfg->cfg_last_idx == 0) /* the first time */
-		nrpages = CONFIG_READ_NRPAGES_INIT;
-
-	pages = kcalloc(nrpages, sizeof(*pages), GFP_NOFS);
-	if (pages == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	for (i = 0; i < nrpages; i++) {
-		pages[i] = alloc_page(GFP_IOFS);
-		if (pages[i] == NULL) {
-			rc = -ENOMEM;
-			goto out;
-		}
-	}
-
-again:
-	LASSERT(cld_is_recover(cld));
-	LASSERT(mutex_is_locked(&cld->cld_lock));
-	req = ptlrpc_request_alloc(class_exp2cliimp(cld->cld_mgcexp),
-				   &RQF_MGS_CONFIG_READ);
-	if (req == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = ptlrpc_request_pack(req, LUSTRE_MGS_VERSION, MGS_CONFIG_READ);
-	if (rc)
-		goto out;
-
-	/* pack request */
-	body = req_capsule_client_get(&req->rq_pill, &RMF_MGS_CONFIG_BODY);
-	LASSERT(body != NULL);
-	LASSERT(sizeof(body->mcb_name) > strlen(cld->cld_logname));
-	if (strlcpy(body->mcb_name, cld->cld_logname, sizeof(body->mcb_name))
-	    >= sizeof(body->mcb_name)) {
-		rc = -E2BIG;
-		goto out;
-	}
-	body->mcb_offset = cfg->cfg_last_idx + 1;
-	body->mcb_type   = cld->cld_type;
-	body->mcb_bits   = PAGE_CACHE_SHIFT;
-	body->mcb_units  = nrpages;
-
-	/* allocate bulk transfer descriptor */
-	desc = ptlrpc_prep_bulk_imp(req, nrpages, 1, BULK_PUT_SINK,
-				    MGS_BULK_PORTAL);
-	if (desc == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	for (i = 0; i < nrpages; i++)
-		ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, PAGE_CACHE_SIZE);
-
-	ptlrpc_request_set_replen(req);
-	rc = ptlrpc_queue_wait(req);
-	if (rc)
-		goto out;
-
-	res = req_capsule_server_get(&req->rq_pill, &RMF_MGS_CONFIG_RES);
-	if (res->mcr_size < res->mcr_offset) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	/* always update the index even though it might have errors with
-	 * handling the recover logs */
-	cfg->cfg_last_idx = res->mcr_offset;
-	eof = res->mcr_offset == res->mcr_size;
-
-	CDEBUG(D_INFO, "Latest version %lld, more %d.\n",
-	       res->mcr_offset, eof == false);
-
-	ealen = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk, 0);
-	if (ealen < 0) {
-		rc = ealen;
-		goto out;
-	}
-
-	if (ealen > nrpages << PAGE_CACHE_SHIFT) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	if (ealen == 0) { /* no logs transferred */
-		if (!eof)
-			rc = -EINVAL;
-		goto out;
-	}
-
-	mne_swab = !!ptlrpc_rep_need_swab(req);
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 50, 0)
-	/* This import flag means the server did an extra swab of IR MNE
-	 * records (fixed in LU-1252), reverse it here if needed. LU-1644 */
-	if (unlikely(req->rq_import->imp_need_mne_swab))
-		mne_swab = !mne_swab;
-#else
-#warning "LU-1644: Remove old OBD_CONNECT_MNE_SWAB fixup and imp_need_mne_swab"
-#endif
-
-	for (i = 0; i < nrpages && ealen > 0; i++) {
-		int rc2;
-		void *ptr;
-
-		ptr = kmap(pages[i]);
-		rc2 = mgc_apply_recover_logs(obd, cld, res->mcr_offset, ptr,
-					     min_t(int, ealen, PAGE_CACHE_SIZE),
-					     mne_swab);
-		kunmap(pages[i]);
-		if (rc2 < 0) {
-			CWARN("Process recover log %s error %d\n",
-			      cld->cld_logname, rc2);
-			break;
-		}
-
-		ealen -= PAGE_CACHE_SIZE;
-	}
-
-out:
-	if (req)
-		ptlrpc_req_finished(req);
-
-	if (rc == 0 && !eof)
-		goto again;
-
-	if (pages) {
-		for (i = 0; i < nrpages; i++) {
-			if (pages[i] == NULL)
-				break;
-			__free_page(pages[i]);
-		}
-		kfree(pages);
-	}
-	return rc;
-}
-
-/* local_only means it cannot get remote llogs */
-static int mgc_process_cfg_log(struct obd_device *mgc,
-			       struct config_llog_data *cld, int local_only)
-{
-	struct llog_ctxt	*ctxt;
-	struct lustre_sb_info	*lsi = NULL;
-	int			 rc = 0;
-	bool			 sptlrpc_started = false;
-	struct lu_env		*env;
-
-	LASSERT(cld);
-	LASSERT(mutex_is_locked(&cld->cld_lock));
-
-	/*
-	 * local copy of sptlrpc log is controlled elsewhere, don't try to
-	 * read it up here.
-	 */
-	if (cld_is_sptlrpc(cld) && local_only)
-		return 0;
-
-	if (cld->cld_cfg.cfg_sb)
-		lsi = s2lsi(cld->cld_cfg.cfg_sb);
-
-	env = kzalloc(sizeof(*env), GFP_NOFS);
-	if (!env)
-		return -ENOMEM;
-
-	rc = lu_env_init(env, LCT_MG_THREAD);
-	if (rc)
-		goto out_free;
-
-	ctxt = llog_get_context(mgc, LLOG_CONFIG_REPL_CTXT);
-	LASSERT(ctxt);
-
-	if (local_only) /* no local log at client side */ {
-		rc = -EIO;
-		goto out_pop;
-	}
-
-	if (cld_is_sptlrpc(cld)) {
-		sptlrpc_conf_log_update_begin(cld->cld_logname);
-		sptlrpc_started = true;
-	}
-
-	/* logname and instance info should be the same, so use our
-	 * copy of the instance for the update.  The cfg_last_idx will
-	 * be updated here. */
-	rc = class_config_parse_llog(env, ctxt, cld->cld_logname,
-				     &cld->cld_cfg);
-
-out_pop:
-	__llog_ctxt_put(env, ctxt);
-
-	/*
-	 * update settings on existing OBDs. doing it inside
-	 * of llog_process_lock so no device is attaching/detaching
-	 * in parallel.
-	 * the logname must be <fsname>-sptlrpc
-	 */
-	if (sptlrpc_started) {
-		LASSERT(cld_is_sptlrpc(cld));
-		sptlrpc_conf_log_update_end(cld->cld_logname);
-		class_notify_sptlrpc_conf(cld->cld_logname,
-					  strlen(cld->cld_logname) -
-					  strlen("-sptlrpc"));
-	}
-
-	lu_env_fini(env);
-out_free:
-	kfree(env);
-	return rc;
-}
-
-/** Get a config log from the MGS and process it.
- * This func is called for both clients and servers.
- * Copy the log locally before parsing it if appropriate (non-MGS server)
- */
-int mgc_process_log(struct obd_device *mgc, struct config_llog_data *cld)
-{
-	struct lustre_handle lockh = { 0 };
-	__u64 flags = LDLM_FL_NO_LRU;
-	int rc = 0, rcl;
-
-	LASSERT(cld);
-
-	/* I don't want multiple processes running process_log at once --
-	   sounds like badness.  It actually might be fine, as long as
-	   we're not trying to update from the same log
-	   simultaneously (in which case we should use a per-log sem.) */
-	mutex_lock(&cld->cld_lock);
-	if (cld->cld_stopping) {
-		mutex_unlock(&cld->cld_lock);
-		return 0;
-	}
-
-	OBD_FAIL_TIMEOUT(OBD_FAIL_MGC_PAUSE_PROCESS_LOG, 20);
-
-	CDEBUG(D_MGC, "Process log %s:%p from %d\n", cld->cld_logname,
-	       cld->cld_cfg.cfg_instance, cld->cld_cfg.cfg_last_idx + 1);
-
-	/* Get the cfg lock on the llog */
-	rcl = mgc_enqueue(mgc->u.cli.cl_mgc_mgsexp, NULL, LDLM_PLAIN, NULL,
-			  LCK_CR, &flags, NULL, NULL, NULL,
-			  cld, 0, NULL, &lockh);
-	if (rcl == 0) {
-		/* Get the cld, it will be released in mgc_blocking_ast. */
-		config_log_get(cld);
-		rc = ldlm_lock_set_data(&lockh, (void *)cld);
-		LASSERT(rc == 0);
-	} else {
-		CDEBUG(D_MGC, "Can't get cfg lock: %d\n", rcl);
-
-		/* mark cld_lostlock so that it will requeue
-		 * after MGC becomes available. */
-		cld->cld_lostlock = 1;
-		/* Get extra reference, it will be put in requeue thread */
-		config_log_get(cld);
-	}
-
-
-	if (cld_is_recover(cld)) {
-		rc = 0; /* this is not a fatal error for recover log */
-		if (rcl == 0)
-			rc = mgc_process_recover_log(mgc, cld);
-	} else {
-		rc = mgc_process_cfg_log(mgc, cld, rcl != 0);
-	}
-
-	CDEBUG(D_MGC, "%s: configuration from log '%s' %sed (%d).\n",
-	       mgc->obd_name, cld->cld_logname, rc ? "fail" : "succeed", rc);
-
-	mutex_unlock(&cld->cld_lock);
-
-	/* Now drop the lock so MGS can revoke it */
-	if (!rcl)
-		ldlm_lock_decref(&lockh, LCK_CR);
-
-	return rc;
-}
-
-
-/** Called from lustre_process_log.
- * LCFG_LOG_START gets the config log from the MGS, processes it to start
- * any services, and adds it to the list logs to watch (follow).
- */
-static int mgc_process_config(struct obd_device *obd, u32 len, void *buf)
-{
-	struct lustre_cfg *lcfg = buf;
-	struct config_llog_instance *cfg = NULL;
-	char *logname;
-	int rc = 0;
-
-	switch (lcfg->lcfg_command) {
-	case LCFG_LOV_ADD_OBD: {
-		/* Overloading this cfg command: register a new target */
-		struct mgs_target_info *mti;
-
-		if (LUSTRE_CFG_BUFLEN(lcfg, 1) !=
-		    sizeof(struct mgs_target_info)) {
-			rc = -EINVAL;
-			goto out;
-		}
-
-		mti = (struct mgs_target_info *)lustre_cfg_buf(lcfg, 1);
-		CDEBUG(D_MGC, "add_target %s %#x\n",
-		       mti->mti_svname, mti->mti_flags);
-		rc = mgc_target_register(obd->u.cli.cl_mgc_mgsexp, mti);
-		break;
-	}
-	case LCFG_LOV_DEL_OBD:
-		/* Unregister has no meaning at the moment. */
-		CERROR("lov_del_obd unimplemented\n");
-		rc = -ENOSYS;
-		break;
-	case LCFG_SPTLRPC_CONF: {
-		rc = sptlrpc_process_config(lcfg);
-		break;
-	}
-	case LCFG_LOG_START: {
-		struct config_llog_data *cld;
-		struct super_block *sb;
-
-		logname = lustre_cfg_string(lcfg, 1);
-		cfg = (struct config_llog_instance *)lustre_cfg_buf(lcfg, 2);
-		sb = *(struct super_block **)lustre_cfg_buf(lcfg, 3);
-
-		CDEBUG(D_MGC, "parse_log %s from %d\n", logname,
-		       cfg->cfg_last_idx);
-
-		/* We're only called through here on the initial mount */
-		rc = config_log_add(obd, logname, cfg, sb);
-		if (rc)
-			break;
-		cld = config_log_find(logname, cfg);
-		if (cld == NULL) {
-			rc = -ENOENT;
-			break;
-		}
-
-		/* COMPAT_146 */
-		/* FIXME only set this for old logs!  Right now this forces
-		   us to always skip the "inside markers" check */
-		cld->cld_cfg.cfg_flags |= CFG_F_COMPAT146;
-
-		rc = mgc_process_log(obd, cld);
-		if (rc == 0 && cld->cld_recover != NULL) {
-			if (OCD_HAS_FLAG(&obd->u.cli.cl_import->
-					 imp_connect_data, IMP_RECOV)) {
-				rc = mgc_process_log(obd, cld->cld_recover);
-			} else {
-				struct config_llog_data *cir = cld->cld_recover;
-				cld->cld_recover = NULL;
-				config_log_put(cir);
-			}
-			if (rc)
-				CERROR("Cannot process recover llog %d\n", rc);
-		}
-
-		if (rc == 0 && cld->cld_params != NULL) {
-			rc = mgc_process_log(obd, cld->cld_params);
-			if (rc == -ENOENT) {
-				CDEBUG(D_MGC,
-				       "There is no params config file yet\n");
-				rc = 0;
-			}
-			/* params log is optional */
-			if (rc)
-				CERROR(
-				       "%s: can't process params llog: rc = %d\n",
-				       obd->obd_name, rc);
-		}
-		config_log_put(cld);
-
-		break;
-	}
-	case LCFG_LOG_END: {
-		logname = lustre_cfg_string(lcfg, 1);
-
-		if (lcfg->lcfg_bufcount >= 2)
-			cfg = (struct config_llog_instance *)lustre_cfg_buf(
-				lcfg, 2);
-		rc = config_log_end(logname, cfg);
-		break;
-	}
-	default: {
-		CERROR("Unknown command: %d\n", lcfg->lcfg_command);
-		rc = -EINVAL;
-		goto out;
-
-	}
-	}
-out:
-	return rc;
-}
-
-struct obd_ops mgc_obd_ops = {
-	.o_owner	= THIS_MODULE,
-	.o_setup	= mgc_setup,
-	.o_precleanup   = mgc_precleanup,
-	.o_cleanup      = mgc_cleanup,
-	.o_add_conn     = client_import_add_conn,
-	.o_del_conn     = client_import_del_conn,
-	.o_connect      = client_connect_import,
-	.o_disconnect   = client_disconnect_export,
-	/* .o_enqueue      = mgc_enqueue, */
-	/* .o_iocontrol    = mgc_iocontrol, */
-	.o_set_info_async = mgc_set_info_async,
-	.o_get_info       = mgc_get_info,
-	.o_import_event = mgc_import_event,
-	.o_process_config = mgc_process_config,
-};
-
-static int __init mgc_init(void)
-{
-	return class_register_type(&mgc_obd_ops, NULL,
-				   LUSTRE_MGC_NAME, NULL);
-}
-
-static void /*__exit*/ mgc_exit(void)
-{
-	class_unregister_type(LUSTRE_MGC_NAME);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Management Client");
-MODULE_LICENSE("GPL");
-
-module_init(mgc_init);
-module_exit(mgc_exit);
diff --git a/drivers/staging/lustre/lustre/obdclass/Makefile b/drivers/staging/lustre/lustre/obdclass/Makefile
deleted file mode 100644
index d0f70b41acf6..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += obdclass.o
-
-obdclass-y := linux/linux-module.o linux/linux-obdo.o linux/linux-sysctl.o \
-	      llog.o llog_cat.o llog_obd.o llog_swab.o class_obd.o debug.o \
-	      genops.o uuid.o lprocfs_status.o \
-	      lustre_handles.o lustre_peer.o \
-	      statfs_pack.o obdo.o obd_config.o obd_mount.o \
-	      lu_object.o dt_object.o capa.o cl_object.o   \
-	      cl_page.o cl_lock.o cl_io.o lu_ref.o acl.o lprocfs_counters.o
diff --git a/drivers/staging/lustre/lustre/obdclass/acl.c b/drivers/staging/lustre/lustre/obdclass/acl.c
deleted file mode 100644
index 933456c502d1..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/acl.c
+++ /dev/null
@@ -1,544 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/acl.c
- *
- * Lustre Access Control List.
- *
- * Author: Fan Yong <fanyong@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_SEC
-#include "../include/lu_object.h"
-#include "../include/lustre_acl.h"
-#include "../include/lustre_eacl.h"
-#include "../include/obd_support.h"
-
-#ifdef CONFIG_FS_POSIX_ACL
-
-#define CFS_ACL_XATTR_VERSION POSIX_ACL_XATTR_VERSION
-
-enum {
-	ES_UNK  = 0,    /* unknown stat */
-	ES_UNC  = 1,    /* ACL entry is not changed */
-	ES_MOD  = 2,    /* ACL entry is modified */
-	ES_ADD  = 3,    /* ACL entry is added */
-	ES_DEL  = 4     /* ACL entry is deleted */
-};
-
-static inline void lustre_ext_acl_le_to_cpu(ext_acl_xattr_entry *d,
-					    ext_acl_xattr_entry *s)
-{
-	d->e_tag	= le16_to_cpu(s->e_tag);
-	d->e_perm       = le16_to_cpu(s->e_perm);
-	d->e_id	 = le32_to_cpu(s->e_id);
-	d->e_stat       = le32_to_cpu(s->e_stat);
-}
-
-static inline void lustre_ext_acl_cpu_to_le(ext_acl_xattr_entry *d,
-					    ext_acl_xattr_entry *s)
-{
-	d->e_tag	= cpu_to_le16(s->e_tag);
-	d->e_perm       = cpu_to_le16(s->e_perm);
-	d->e_id	 = cpu_to_le32(s->e_id);
-	d->e_stat       = cpu_to_le32(s->e_stat);
-}
-
-static inline void lustre_posix_acl_le_to_cpu(posix_acl_xattr_entry *d,
-					      posix_acl_xattr_entry *s)
-{
-	d->e_tag	= le16_to_cpu(s->e_tag);
-	d->e_perm       = le16_to_cpu(s->e_perm);
-	d->e_id	 = le32_to_cpu(s->e_id);
-}
-
-static inline void lustre_posix_acl_cpu_to_le(posix_acl_xattr_entry *d,
-					      posix_acl_xattr_entry *s)
-{
-	d->e_tag	= cpu_to_le16(s->e_tag);
-	d->e_perm       = cpu_to_le16(s->e_perm);
-	d->e_id	 = cpu_to_le32(s->e_id);
-}
-
-
-/* if "new_count == 0", then "new = {a_version, NULL}", NOT NULL. */
-static int lustre_posix_acl_xattr_reduce_space(posix_acl_xattr_header **header,
-					       int old_count, int new_count)
-{
-	int old_size = CFS_ACL_XATTR_SIZE(old_count, posix_acl_xattr);
-	int new_size = CFS_ACL_XATTR_SIZE(new_count, posix_acl_xattr);
-	posix_acl_xattr_header *new;
-
-	if (unlikely(old_count <= new_count))
-		return old_size;
-
-	new = kmemdup(*header, new_size, GFP_NOFS);
-	if (unlikely(new == NULL))
-		return -ENOMEM;
-
-	kfree(*header);
-	*header = new;
-	return new_size;
-}
-
-/* if "new_count == 0", then "new = {0, NULL}", NOT NULL. */
-static int lustre_ext_acl_xattr_reduce_space(ext_acl_xattr_header **header,
-					     int old_count)
-{
-	int ext_count = le32_to_cpu((*header)->a_count);
-	int ext_size = CFS_ACL_XATTR_SIZE(ext_count, ext_acl_xattr);
-	ext_acl_xattr_header *new;
-
-	if (unlikely(old_count <= ext_count))
-		return 0;
-
-	new = kmemdup(*header, ext_size, GFP_NOFS);
-	if (unlikely(new == NULL))
-		return -ENOMEM;
-
-	kfree(*header);
-	*header = new;
-	return 0;
-}
-
-/*
- * Generate new extended ACL based on the posix ACL.
- */
-ext_acl_xattr_header *
-lustre_posix_acl_xattr_2ext(posix_acl_xattr_header *header, int size)
-{
-	int count, i, esize;
-	ext_acl_xattr_header *new;
-
-	if (unlikely(size < 0))
-		return ERR_PTR(-EINVAL);
-	else if (!size)
-		count = 0;
-	else
-		count = CFS_ACL_XATTR_COUNT(size, posix_acl_xattr);
-	esize = CFS_ACL_XATTR_SIZE(count, ext_acl_xattr);
-	new = kzalloc(esize, GFP_NOFS);
-	if (unlikely(new == NULL))
-		return ERR_PTR(-ENOMEM);
-
-	new->a_count = cpu_to_le32(count);
-	for (i = 0; i < count; i++) {
-		new->a_entries[i].e_tag  = header->a_entries[i].e_tag;
-		new->a_entries[i].e_perm = header->a_entries[i].e_perm;
-		new->a_entries[i].e_id   = header->a_entries[i].e_id;
-		new->a_entries[i].e_stat = cpu_to_le32(ES_UNK);
-	}
-
-	return new;
-}
-EXPORT_SYMBOL(lustre_posix_acl_xattr_2ext);
-
-/*
- * Filter out the "nobody" entries in the posix ACL.
- */
-int lustre_posix_acl_xattr_filter(posix_acl_xattr_header *header, size_t size,
-				  posix_acl_xattr_header **out)
-{
-	int count, i, j, rc = 0;
-	__u32 id;
-	posix_acl_xattr_header *new;
-
-	if (!size)
-		return 0;
-	if (size < sizeof(*new))
-		return -EINVAL;
-
-	new = kzalloc(size, GFP_NOFS);
-	if (unlikely(new == NULL))
-		return -ENOMEM;
-
-	new->a_version = cpu_to_le32(CFS_ACL_XATTR_VERSION);
-	count = CFS_ACL_XATTR_COUNT(size, posix_acl_xattr);
-	for (i = 0, j = 0; i < count; i++) {
-		id = le32_to_cpu(header->a_entries[i].e_id);
-		switch (le16_to_cpu(header->a_entries[i].e_tag)) {
-		case ACL_USER_OBJ:
-		case ACL_GROUP_OBJ:
-		case ACL_MASK:
-		case ACL_OTHER:
-			if (id != ACL_UNDEFINED_ID) {
-				rc = -EIO;
-				goto _out;
-			}
-
-			memcpy(&new->a_entries[j++], &header->a_entries[i],
-			       sizeof(posix_acl_xattr_entry));
-			break;
-		case ACL_USER:
-			if (id != NOBODY_UID)
-				memcpy(&new->a_entries[j++],
-				       &header->a_entries[i],
-				       sizeof(posix_acl_xattr_entry));
-			break;
-		case ACL_GROUP:
-			if (id != NOBODY_GID)
-				memcpy(&new->a_entries[j++],
-				       &header->a_entries[i],
-				       sizeof(posix_acl_xattr_entry));
-			break;
-		default:
-			rc = -EIO;
-			goto _out;
-		}
-	}
-
-	/* free unused space. */
-	rc = lustre_posix_acl_xattr_reduce_space(&new, count, j);
-	if (rc >= 0) {
-		size = rc;
-		*out = new;
-		rc = 0;
-	}
-
-_out:
-	if (rc) {
-		kfree(new);
-		size = rc;
-	}
-	return size;
-}
-EXPORT_SYMBOL(lustre_posix_acl_xattr_filter);
-
-/*
- * Release the posix ACL space.
- */
-void lustre_posix_acl_xattr_free(posix_acl_xattr_header *header, int size)
-{
-	kfree(header);
-}
-EXPORT_SYMBOL(lustre_posix_acl_xattr_free);
-
-/*
- * Release the extended ACL space.
- */
-void lustre_ext_acl_xattr_free(ext_acl_xattr_header *header)
-{
-	kfree(header);
-}
-EXPORT_SYMBOL(lustre_ext_acl_xattr_free);
-
-static ext_acl_xattr_entry *
-lustre_ext_acl_xattr_search(ext_acl_xattr_header *header,
-			    posix_acl_xattr_entry *entry, int *pos)
-{
-	int once, start, end, i, j, count = le32_to_cpu(header->a_count);
-
-	once = 0;
-	start = *pos;
-	end = count;
-
-again:
-	for (i = start; i < end; i++) {
-		if (header->a_entries[i].e_tag == entry->e_tag &&
-		    header->a_entries[i].e_id == entry->e_id) {
-			j = i;
-			if (++i >= count)
-				i = 0;
-			*pos = i;
-			return &header->a_entries[j];
-		}
-	}
-
-	if (!once) {
-		once = 1;
-		start = 0;
-		end = *pos;
-		goto again;
-	}
-
-	return NULL;
-}
-
-/*
- * Merge the posix ACL and the extended ACL into new posix ACL.
- */
-int lustre_acl_xattr_merge2posix(posix_acl_xattr_header *posix_header, int size,
-				 ext_acl_xattr_header *ext_header,
-				 posix_acl_xattr_header **out)
-{
-	int posix_count, posix_size, i, j;
-	int ext_count = le32_to_cpu(ext_header->a_count), pos = 0, rc = 0;
-	posix_acl_xattr_entry pe = {ACL_MASK, 0, ACL_UNDEFINED_ID};
-	posix_acl_xattr_header *new;
-	ext_acl_xattr_entry *ee, ae;
-
-	lustre_posix_acl_cpu_to_le(&pe, &pe);
-	ee = lustre_ext_acl_xattr_search(ext_header, &pe, &pos);
-	if (ee == NULL || le32_to_cpu(ee->e_stat) == ES_DEL) {
-		/* there are only base ACL entries at most. */
-		posix_count = 3;
-		posix_size = CFS_ACL_XATTR_SIZE(posix_count, posix_acl_xattr);
-		new = kzalloc(posix_size, GFP_NOFS);
-		if (unlikely(new == NULL))
-			return -ENOMEM;
-
-		new->a_version = cpu_to_le32(CFS_ACL_XATTR_VERSION);
-		for (i = 0, j = 0; i < ext_count; i++) {
-			lustre_ext_acl_le_to_cpu(&ae,
-						 &ext_header->a_entries[i]);
-			switch (ae.e_tag) {
-			case ACL_USER_OBJ:
-			case ACL_GROUP_OBJ:
-			case ACL_OTHER:
-				if (ae.e_id != ACL_UNDEFINED_ID) {
-					rc = -EIO;
-					goto _out;
-				}
-
-				if (ae.e_stat != ES_DEL) {
-					new->a_entries[j].e_tag =
-						ext_header->a_entries[i].e_tag;
-					new->a_entries[j].e_perm =
-						ext_header->a_entries[i].e_perm;
-					new->a_entries[j++].e_id =
-						ext_header->a_entries[i].e_id;
-				}
-				break;
-			case ACL_MASK:
-			case ACL_USER:
-			case ACL_GROUP:
-				if (ae.e_stat == ES_DEL)
-					break;
-			default:
-				rc = -EIO;
-				goto _out;
-			}
-		}
-	} else {
-		/* maybe there are valid ACL_USER or ACL_GROUP entries in the
-		 * original server-side ACL, they are regarded as ES_UNC stat.*/
-		int ori_posix_count;
-
-		if (unlikely(size < 0))
-			return -EINVAL;
-		else if (!size)
-			ori_posix_count = 0;
-		else
-			ori_posix_count =
-				CFS_ACL_XATTR_COUNT(size, posix_acl_xattr);
-		posix_count = ori_posix_count + ext_count;
-		posix_size =
-			CFS_ACL_XATTR_SIZE(posix_count, posix_acl_xattr);
-		new = kzalloc(posix_size, GFP_NOFS);
-		if (unlikely(new == NULL))
-			return -ENOMEM;
-
-		new->a_version = cpu_to_le32(CFS_ACL_XATTR_VERSION);
-		/* 1. process the unchanged ACL entries
-		 *    in the original server-side ACL. */
-		pos = 0;
-		for (i = 0, j = 0; i < ori_posix_count; i++) {
-			ee = lustre_ext_acl_xattr_search(ext_header,
-					&posix_header->a_entries[i], &pos);
-			if (ee == NULL)
-				memcpy(&new->a_entries[j++],
-				       &posix_header->a_entries[i],
-				       sizeof(posix_acl_xattr_entry));
-		}
-
-		/* 2. process the non-deleted entries
-		 *    from client-side extended ACL. */
-		for (i = 0; i < ext_count; i++) {
-			if (le16_to_cpu(ext_header->a_entries[i].e_stat) !=
-			    ES_DEL) {
-				new->a_entries[j].e_tag =
-						ext_header->a_entries[i].e_tag;
-				new->a_entries[j].e_perm =
-						ext_header->a_entries[i].e_perm;
-				new->a_entries[j++].e_id =
-						ext_header->a_entries[i].e_id;
-			}
-		}
-	}
-
-	/* free unused space. */
-	rc = lustre_posix_acl_xattr_reduce_space(&new, posix_count, j);
-	if (rc >= 0) {
-		posix_size = rc;
-		*out = new;
-		rc = 0;
-	}
-
-_out:
-	if (rc) {
-		kfree(new);
-		posix_size = rc;
-	}
-	return posix_size;
-}
-EXPORT_SYMBOL(lustre_acl_xattr_merge2posix);
-
-/*
- * Merge the posix ACL and the extended ACL into new extended ACL.
- */
-ext_acl_xattr_header *
-lustre_acl_xattr_merge2ext(posix_acl_xattr_header *posix_header, int size,
-			   ext_acl_xattr_header *ext_header)
-{
-	int ori_ext_count, posix_count, ext_count, ext_size;
-	int i, j, pos = 0, rc = 0;
-	posix_acl_xattr_entry pae;
-	ext_acl_xattr_header *new;
-	ext_acl_xattr_entry *ee, eae;
-
-	if (unlikely(size < 0))
-		return ERR_PTR(-EINVAL);
-	else if (!size)
-		posix_count = 0;
-	else
-		posix_count = CFS_ACL_XATTR_COUNT(size, posix_acl_xattr);
-	ori_ext_count = le32_to_cpu(ext_header->a_count);
-	ext_count = posix_count + ori_ext_count;
-	ext_size = CFS_ACL_XATTR_SIZE(ext_count, ext_acl_xattr);
-
-	new = kzalloc(ext_size, GFP_NOFS);
-	if (unlikely(new == NULL))
-		return ERR_PTR(-ENOMEM);
-
-	for (i = 0, j = 0; i < posix_count; i++) {
-		lustre_posix_acl_le_to_cpu(&pae, &posix_header->a_entries[i]);
-		switch (pae.e_tag) {
-		case ACL_USER_OBJ:
-		case ACL_GROUP_OBJ:
-		case ACL_MASK:
-		case ACL_OTHER:
-			if (pae.e_id != ACL_UNDEFINED_ID) {
-				rc = -EIO;
-				goto out;
-		}
-		case ACL_USER:
-			/* ignore "nobody" entry. */
-			if (pae.e_id == NOBODY_UID)
-				break;
-
-			new->a_entries[j].e_tag =
-					posix_header->a_entries[i].e_tag;
-			new->a_entries[j].e_perm =
-					posix_header->a_entries[i].e_perm;
-			new->a_entries[j].e_id =
-					posix_header->a_entries[i].e_id;
-			ee = lustre_ext_acl_xattr_search(ext_header,
-					&posix_header->a_entries[i], &pos);
-			if (ee) {
-				if (posix_header->a_entries[i].e_perm !=
-								ee->e_perm)
-					/* entry modified. */
-					ee->e_stat =
-					new->a_entries[j++].e_stat =
-							cpu_to_le32(ES_MOD);
-				else
-					/* entry unchanged. */
-					ee->e_stat =
-					new->a_entries[j++].e_stat =
-							cpu_to_le32(ES_UNC);
-			} else {
-				/* new entry. */
-				new->a_entries[j++].e_stat =
-							cpu_to_le32(ES_ADD);
-			}
-			break;
-		case ACL_GROUP:
-			/* ignore "nobody" entry. */
-			if (pae.e_id == NOBODY_GID)
-				break;
-			new->a_entries[j].e_tag =
-					posix_header->a_entries[i].e_tag;
-			new->a_entries[j].e_perm =
-					posix_header->a_entries[i].e_perm;
-			new->a_entries[j].e_id =
-					posix_header->a_entries[i].e_id;
-			ee = lustre_ext_acl_xattr_search(ext_header,
-					&posix_header->a_entries[i], &pos);
-			if (ee) {
-				if (posix_header->a_entries[i].e_perm !=
-								ee->e_perm)
-					/* entry modified. */
-					ee->e_stat =
-					new->a_entries[j++].e_stat =
-							cpu_to_le32(ES_MOD);
-				else
-					/* entry unchanged. */
-					ee->e_stat =
-					new->a_entries[j++].e_stat =
-							cpu_to_le32(ES_UNC);
-			} else {
-				/* new entry. */
-				new->a_entries[j++].e_stat =
-							cpu_to_le32(ES_ADD);
-			}
-			break;
-		default:
-			rc = -EIO;
-			goto out;
-		}
-	}
-
-	/* process deleted entries. */
-	for (i = 0; i < ori_ext_count; i++) {
-		lustre_ext_acl_le_to_cpu(&eae, &ext_header->a_entries[i]);
-		if (eae.e_stat == ES_UNK) {
-			/* ignore "nobody" entry. */
-			if ((eae.e_tag == ACL_USER && eae.e_id == NOBODY_UID) ||
-			    (eae.e_tag == ACL_GROUP && eae.e_id == NOBODY_GID))
-				continue;
-
-			new->a_entries[j].e_tag =
-						ext_header->a_entries[i].e_tag;
-			new->a_entries[j].e_perm =
-						ext_header->a_entries[i].e_perm;
-			new->a_entries[j].e_id = ext_header->a_entries[i].e_id;
-			new->a_entries[j++].e_stat = cpu_to_le32(ES_DEL);
-		}
-	}
-
-	new->a_count = cpu_to_le32(j);
-	/* free unused space. */
-	rc = lustre_ext_acl_xattr_reduce_space(&new, ext_count);
-
-out:
-	if (rc) {
-		kfree(new);
-		new = ERR_PTR(rc);
-	}
-	return new;
-}
-EXPORT_SYMBOL(lustre_acl_xattr_merge2ext);
-
-#endif
diff --git a/drivers/staging/lustre/lustre/obdclass/capa.c b/drivers/staging/lustre/lustre/obdclass/capa.c
deleted file mode 100644
index d8d1a66ad68e..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/capa.c
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/capa.c
- *
- * Lustre Capability Hash Management
- *
- * Author: Lai Siyao<lsy@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_SEC
-
-#include <linux/fs.h>
-#include <asm/unistd.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/crypto.h>
-
-#include "../include/obd_class.h"
-#include "../include/lustre_debug.h"
-#include "../include/lustre/lustre_idl.h"
-
-#include <linux/list.h>
-#include "../include/lustre_capa.h"
-
-#define NR_CAPAHASH 32
-#define CAPA_HASH_SIZE 3000	      /* for MDS & OSS */
-
-struct kmem_cache *capa_cachep = NULL;
-
-/* lock for capa hash/capa_list/fo_capa_keys */
-DEFINE_SPINLOCK(capa_lock);
-
-struct list_head capa_list[CAPA_SITE_MAX];
-
-static struct capa_hmac_alg capa_hmac_algs[] = {
-	DEF_CAPA_HMAC_ALG("sha1", SHA1, 20, 20),
-};
-/* capa count */
-int capa_count[CAPA_SITE_MAX] = { 0, };
-
-EXPORT_SYMBOL(capa_cachep);
-EXPORT_SYMBOL(capa_list);
-EXPORT_SYMBOL(capa_lock);
-EXPORT_SYMBOL(capa_count);
-
-static inline
-unsigned int ll_crypto_tfm_alg_min_keysize(struct crypto_blkcipher *tfm)
-{
-	return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.min_keysize;
-}
-
-struct hlist_head *init_capa_hash(void)
-{
-	struct hlist_head *hash;
-	int nr_hash, i;
-
-	hash = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
-	if (!hash)
-		return NULL;
-
-	nr_hash = PAGE_CACHE_SIZE / sizeof(struct hlist_head);
-	LASSERT(nr_hash > NR_CAPAHASH);
-
-	for (i = 0; i < NR_CAPAHASH; i++)
-		INIT_HLIST_HEAD(hash + i);
-	return hash;
-}
-EXPORT_SYMBOL(init_capa_hash);
-
-static inline int capa_on_server(struct obd_capa *ocapa)
-{
-	return ocapa->c_site == CAPA_SITE_SERVER;
-}
-
-static inline void capa_delete(struct obd_capa *ocapa)
-{
-	LASSERT(capa_on_server(ocapa));
-	hlist_del_init(&ocapa->u.tgt.c_hash);
-	list_del_init(&ocapa->c_list);
-	capa_count[ocapa->c_site]--;
-	/* release the ref when alloc */
-	capa_put(ocapa);
-}
-
-void cleanup_capa_hash(struct hlist_head *hash)
-{
-	int i;
-	struct hlist_node *next;
-	struct obd_capa *oc;
-
-	spin_lock(&capa_lock);
-	for (i = 0; i < NR_CAPAHASH; i++) {
-		hlist_for_each_entry_safe(oc, next, hash + i,
-					      u.tgt.c_hash)
-			capa_delete(oc);
-	}
-	spin_unlock(&capa_lock);
-
-	kfree(hash);
-}
-EXPORT_SYMBOL(cleanup_capa_hash);
-
-static inline int capa_hashfn(struct lu_fid *fid)
-{
-	return (fid_oid(fid) ^ fid_ver(fid)) *
-	       (unsigned long)(fid_seq(fid) + 1) % NR_CAPAHASH;
-}
-
-/* capa renewal time check is earlier than that on client, which is to prevent
- * client renew right after obtaining it. */
-static inline int capa_is_to_expire(struct obd_capa *oc)
-{
-	return time_before(cfs_time_sub(oc->c_expiry,
-					cfs_time_seconds(oc->c_capa.lc_timeout)*2/3),
-			   cfs_time_current());
-}
-
-static struct obd_capa *find_capa(struct lustre_capa *capa,
-				  struct hlist_head *head, int alive)
-{
-	struct obd_capa *ocapa;
-	int len = alive ? offsetof(struct lustre_capa, lc_keyid):sizeof(*capa);
-
-	hlist_for_each_entry(ocapa, head, u.tgt.c_hash) {
-		if (memcmp(&ocapa->c_capa, capa, len))
-			continue;
-		/* don't return one that will expire soon in this case */
-		if (alive && capa_is_to_expire(ocapa))
-			continue;
-
-		LASSERT(capa_on_server(ocapa));
-
-		DEBUG_CAPA(D_SEC, &ocapa->c_capa, "found");
-		return ocapa;
-	}
-
-	return NULL;
-}
-
-#define LRU_CAPA_DELETE_COUNT 12
-static inline void capa_delete_lru(struct list_head *head)
-{
-	struct obd_capa *ocapa;
-	struct list_head *node = head->next;
-	int count = 0;
-
-	/* free LRU_CAPA_DELETE_COUNT unused capa from head */
-	while (count++ < LRU_CAPA_DELETE_COUNT) {
-		ocapa = list_entry(node, struct obd_capa, c_list);
-		node = node->next;
-		if (atomic_read(&ocapa->c_refc))
-			continue;
-
-		DEBUG_CAPA(D_SEC, &ocapa->c_capa, "free lru");
-		capa_delete(ocapa);
-	}
-}
-
-/* add or update */
-struct obd_capa *capa_add(struct hlist_head *hash, struct lustre_capa *capa)
-{
-	struct hlist_head *head = hash + capa_hashfn(&capa->lc_fid);
-	struct obd_capa *ocapa, *old = NULL;
-	struct list_head *list = &capa_list[CAPA_SITE_SERVER];
-
-	ocapa = alloc_capa(CAPA_SITE_SERVER);
-	if (IS_ERR(ocapa))
-		return NULL;
-
-	spin_lock(&capa_lock);
-	old = find_capa(capa, head, 0);
-	if (!old) {
-		ocapa->c_capa = *capa;
-		set_capa_expiry(ocapa);
-		hlist_add_head(&ocapa->u.tgt.c_hash, head);
-		list_add_tail(&ocapa->c_list, list);
-		capa_get(ocapa);
-		capa_count[CAPA_SITE_SERVER]++;
-		if (capa_count[CAPA_SITE_SERVER] > CAPA_HASH_SIZE)
-			capa_delete_lru(list);
-		spin_unlock(&capa_lock);
-		return ocapa;
-	}
-	capa_get(old);
-	spin_unlock(&capa_lock);
-	capa_put(ocapa);
-	return old;
-}
-EXPORT_SYMBOL(capa_add);
-
-struct obd_capa *capa_lookup(struct hlist_head *hash, struct lustre_capa *capa,
-			     int alive)
-{
-	struct obd_capa *ocapa;
-
-	spin_lock(&capa_lock);
-	ocapa = find_capa(capa, hash + capa_hashfn(&capa->lc_fid), alive);
-	if (ocapa) {
-		list_move_tail(&ocapa->c_list,
-				   &capa_list[CAPA_SITE_SERVER]);
-		capa_get(ocapa);
-	}
-	spin_unlock(&capa_lock);
-
-	return ocapa;
-}
-EXPORT_SYMBOL(capa_lookup);
-
-static inline int ll_crypto_hmac(struct crypto_hash *tfm,
-				 u8 *key, unsigned int *keylen,
-				 struct scatterlist *sg,
-				 unsigned int size, u8 *result)
-{
-	struct hash_desc desc;
-	int	      rv;
-	desc.tfm   = tfm;
-	desc.flags = 0;
-	rv = crypto_hash_setkey(desc.tfm, key, *keylen);
-	if (rv) {
-		CERROR("failed to hash setkey: %d\n", rv);
-		return rv;
-	}
-	return crypto_hash_digest(&desc, sg, size, result);
-}
-
-int capa_hmac(__u8 *hmac, struct lustre_capa *capa, __u8 *key)
-{
-	struct crypto_hash *tfm;
-	struct capa_hmac_alg  *alg;
-	int keylen;
-	struct scatterlist sl;
-
-	if (capa_alg(capa) != CAPA_HMAC_ALG_SHA1) {
-		CERROR("unknown capability hmac algorithm!\n");
-		return -EFAULT;
-	}
-
-	alg = &capa_hmac_algs[capa_alg(capa)];
-
-	tfm = crypto_alloc_hash(alg->ha_name, 0, 0);
-	if (IS_ERR(tfm)) {
-		CERROR("crypto_alloc_tfm failed, check whether your kernel has crypto support!\n");
-		return PTR_ERR(tfm);
-	}
-	keylen = alg->ha_keylen;
-
-	sg_init_table(&sl, 1);
-	sg_set_page(&sl, virt_to_page(capa),
-		    offsetof(struct lustre_capa, lc_hmac),
-		    (unsigned long)(capa) % PAGE_CACHE_SIZE);
-
-	ll_crypto_hmac(tfm, key, &keylen, &sl, sl.length, hmac);
-	crypto_free_hash(tfm);
-
-	return 0;
-}
-EXPORT_SYMBOL(capa_hmac);
-
-int capa_encrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen)
-{
-	struct crypto_blkcipher *tfm;
-	struct scatterlist sd;
-	struct scatterlist ss;
-	struct blkcipher_desc desc;
-	unsigned int min;
-	int rc;
-	char alg[CRYPTO_MAX_ALG_NAME+1] = "aes";
-
-	/* passing "aes" in a variable instead of a constant string keeps gcc
-	 * 4.3.2 happy */
-	tfm = crypto_alloc_blkcipher(alg, 0, 0);
-	if (IS_ERR(tfm)) {
-		CERROR("failed to load transform for aes\n");
-		return PTR_ERR(tfm);
-	}
-
-	min = ll_crypto_tfm_alg_min_keysize(tfm);
-	if (keylen < min) {
-		CERROR("keylen at least %d bits for aes\n", min * 8);
-		rc = -EINVAL;
-		goto out;
-	}
-
-	rc = crypto_blkcipher_setkey(tfm, key, min);
-	if (rc) {
-		CERROR("failed to setting key for aes\n");
-		goto out;
-	}
-
-	sg_init_table(&sd, 1);
-	sg_set_page(&sd, virt_to_page(d), 16,
-		    (unsigned long)(d) % PAGE_CACHE_SIZE);
-
-	sg_init_table(&ss, 1);
-	sg_set_page(&ss, virt_to_page(s), 16,
-		    (unsigned long)(s) % PAGE_CACHE_SIZE);
-	desc.tfm   = tfm;
-	desc.info  = NULL;
-	desc.flags = 0;
-	rc = crypto_blkcipher_encrypt(&desc, &sd, &ss, 16);
-	if (rc) {
-		CERROR("failed to encrypt for aes\n");
-		goto out;
-	}
-
-out:
-	crypto_free_blkcipher(tfm);
-	return rc;
-}
-EXPORT_SYMBOL(capa_encrypt_id);
-
-int capa_decrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen)
-{
-	struct crypto_blkcipher *tfm;
-	struct scatterlist sd;
-	struct scatterlist ss;
-	struct blkcipher_desc desc;
-	unsigned int min;
-	int rc;
-	char alg[CRYPTO_MAX_ALG_NAME+1] = "aes";
-
-	/* passing "aes" in a variable instead of a constant string keeps gcc
-	 * 4.3.2 happy */
-	tfm = crypto_alloc_blkcipher(alg, 0, 0);
-	if (IS_ERR(tfm)) {
-		CERROR("failed to load transform for aes\n");
-		return PTR_ERR(tfm);
-	}
-
-	min = ll_crypto_tfm_alg_min_keysize(tfm);
-	if (keylen < min) {
-		CERROR("keylen at least %d bits for aes\n", min * 8);
-		rc = -EINVAL;
-		goto out;
-	}
-
-	rc = crypto_blkcipher_setkey(tfm, key, min);
-	if (rc) {
-		CERROR("failed to setting key for aes\n");
-		goto out;
-	}
-
-	sg_init_table(&sd, 1);
-	sg_set_page(&sd, virt_to_page(d), 16,
-		    (unsigned long)(d) % PAGE_CACHE_SIZE);
-
-	sg_init_table(&ss, 1);
-	sg_set_page(&ss, virt_to_page(s), 16,
-		    (unsigned long)(s) % PAGE_CACHE_SIZE);
-
-	desc.tfm   = tfm;
-	desc.info  = NULL;
-	desc.flags = 0;
-	rc = crypto_blkcipher_decrypt(&desc, &sd, &ss, 16);
-	if (rc) {
-		CERROR("failed to decrypt for aes\n");
-		goto out;
-	}
-
-out:
-	crypto_free_blkcipher(tfm);
-	return rc;
-}
-EXPORT_SYMBOL(capa_decrypt_id);
-
-void capa_cpy(void *capa, struct obd_capa *ocapa)
-{
-	spin_lock(&ocapa->c_lock);
-	*(struct lustre_capa *)capa = ocapa->c_capa;
-	spin_unlock(&ocapa->c_lock);
-}
-EXPORT_SYMBOL(capa_cpy);
-
-void _debug_capa(struct lustre_capa *c,
-		 struct libcfs_debug_msg_data *msgdata,
-		 const char *fmt, ...)
-{
-	va_list args;
-	va_start(args, fmt);
-	libcfs_debug_vmsg2(msgdata, fmt, args,
-			   " capability@%p fid " DFID " opc %#llx uid %llu gid %llu flags %u alg %d keyid %u timeout %u expiry %u\n",
-			   c, PFID(capa_fid(c)), capa_opc(c),
-			   capa_uid(c), capa_gid(c), capa_flags(c),
-			   capa_alg(c), capa_keyid(c), capa_timeout(c),
-			   capa_expiry(c));
-	va_end(args);
-}
-EXPORT_SYMBOL(_debug_capa);
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_internal.h b/drivers/staging/lustre/lustre/obdclass/cl_internal.h
deleted file mode 100644
index 7eb0ad7b3644..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/cl_internal.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Internal cl interfaces.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-#ifndef _CL_INTERNAL_H
-#define _CL_INTERNAL_H
-
-#define CLT_PVEC_SIZE (14)
-
-/**
- * Possible levels of the nesting. Currently this is 2: there are "top"
- * entities (files, extent locks), and "sub" entities (stripes and stripe
- * locks). This is used only for debugging counters right now.
- */
-enum clt_nesting_level {
-	CNL_TOP,
-	CNL_SUB,
-	CNL_NR
-};
-
-/**
- * Counters used to check correctness of cl_lock interface usage.
- */
-struct cl_thread_counters {
-	/**
-	 * Number of outstanding calls to cl_lock_mutex_get() made by the
-	 * current thread. For debugging.
-	 */
-	int	   ctc_nr_locks_locked;
-	/** List of locked locks. */
-	struct lu_ref ctc_locks_locked;
-	/** Number of outstanding holds on locks. */
-	int	   ctc_nr_held;
-	/** Number of outstanding uses on locks. */
-	int	   ctc_nr_used;
-	/** Number of held extent locks. */
-	int	   ctc_nr_locks_acquired;
-};
-
-/**
- * Thread local state internal for generic cl-code.
- */
-struct cl_thread_info {
-	/*
-	 * Common fields.
-	 */
-	struct cl_io	 clt_io;
-	struct cl_2queue     clt_queue;
-
-	/*
-	 * Fields used by cl_lock.c
-	 */
-	struct cl_lock_descr clt_descr;
-	struct cl_page_list  clt_list;
-	/**
-	 * Counters for every level of lock nesting.
-	 */
-	struct cl_thread_counters clt_counters[CNL_NR];
-	/** @} debugging */
-
-	/*
-	 * Fields used by cl_page.c
-	 */
-	struct cl_page      *clt_pvec[CLT_PVEC_SIZE];
-
-	/*
-	 * Fields used by cl_io.c
-	 */
-	/**
-	 * Pointer to the topmost ongoing IO in this thread.
-	 */
-	struct cl_io	*clt_current_io;
-	/**
-	 * Used for submitting a sync io.
-	 */
-	struct cl_sync_io    clt_anchor;
-	/**
-	 * Fields used by cl_lock_discard_pages().
-	 */
-	pgoff_t	      clt_next_index;
-	pgoff_t	      clt_fn_index; /* first non-overlapped index */
-};
-
-struct cl_thread_info *cl_env_info(const struct lu_env *env);
-
-#endif /* _CL_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c
deleted file mode 100644
index fd1a4c5421e8..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/cl_io.c
+++ /dev/null
@@ -1,1670 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Client IO.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_fid.h"
-#include <linux/list.h>
-#include "../include/cl_object.h"
-#include "cl_internal.h"
-
-/*****************************************************************************
- *
- * cl_io interface.
- *
- */
-
-#define cl_io_for_each(slice, io) \
-	list_for_each_entry((slice), &io->ci_layers, cis_linkage)
-#define cl_io_for_each_reverse(slice, io)		 \
-	list_for_each_entry_reverse((slice), &io->ci_layers, cis_linkage)
-
-static inline int cl_io_type_is_valid(enum cl_io_type type)
-{
-	return CIT_READ <= type && type < CIT_OP_NR;
-}
-
-static inline int cl_io_is_loopable(const struct cl_io *io)
-{
-	return cl_io_type_is_valid(io->ci_type) && io->ci_type != CIT_MISC;
-}
-
-/**
- * Returns true iff there is an IO ongoing in the given environment.
- */
-int cl_io_is_going(const struct lu_env *env)
-{
-	return cl_env_info(env)->clt_current_io != NULL;
-}
-EXPORT_SYMBOL(cl_io_is_going);
-
-/**
- * cl_io invariant that holds at all times when exported cl_io_*() functions
- * are entered and left.
- */
-static int cl_io_invariant(const struct cl_io *io)
-{
-	struct cl_io *up;
-
-	up = io->ci_parent;
-	return
-		/*
-		 * io can own pages only when it is ongoing. Sub-io might
-		 * still be in CIS_LOCKED state when top-io is in
-		 * CIS_IO_GOING.
-		 */
-		ergo(io->ci_owned_nr > 0, io->ci_state == CIS_IO_GOING ||
-		     (io->ci_state == CIS_LOCKED && up != NULL));
-}
-
-/**
- * Finalize \a io, by calling cl_io_operations::cio_fini() bottom-to-top.
- */
-void cl_io_fini(const struct lu_env *env, struct cl_io *io)
-{
-	struct cl_io_slice    *slice;
-	struct cl_thread_info *info;
-
-	LINVRNT(cl_io_type_is_valid(io->ci_type));
-	LINVRNT(cl_io_invariant(io));
-
-	while (!list_empty(&io->ci_layers)) {
-		slice = container_of(io->ci_layers.prev, struct cl_io_slice,
-				     cis_linkage);
-		list_del_init(&slice->cis_linkage);
-		if (slice->cis_iop->op[io->ci_type].cio_fini != NULL)
-			slice->cis_iop->op[io->ci_type].cio_fini(env, slice);
-		/*
-		 * Invalidate slice to catch use after free. This assumes that
-		 * slices are allocated within session and can be touched
-		 * after ->cio_fini() returns.
-		 */
-		slice->cis_io = NULL;
-	}
-	io->ci_state = CIS_FINI;
-	info = cl_env_info(env);
-	if (info->clt_current_io == io)
-		info->clt_current_io = NULL;
-
-	/* sanity check for layout change */
-	switch (io->ci_type) {
-	case CIT_READ:
-	case CIT_WRITE:
-		break;
-	case CIT_FAULT:
-	case CIT_FSYNC:
-		LASSERT(!io->ci_need_restart);
-		break;
-	case CIT_SETATTR:
-	case CIT_MISC:
-		/* Check ignore layout change conf */
-		LASSERT(ergo(io->ci_ignore_layout || !io->ci_verify_layout,
-				!io->ci_need_restart));
-		break;
-	default:
-		LBUG();
-	}
-}
-EXPORT_SYMBOL(cl_io_fini);
-
-static int cl_io_init0(const struct lu_env *env, struct cl_io *io,
-		       enum cl_io_type iot, struct cl_object *obj)
-{
-	struct cl_object *scan;
-	int result;
-
-	LINVRNT(io->ci_state == CIS_ZERO || io->ci_state == CIS_FINI);
-	LINVRNT(cl_io_type_is_valid(iot));
-	LINVRNT(cl_io_invariant(io));
-
-	io->ci_type = iot;
-	INIT_LIST_HEAD(&io->ci_lockset.cls_todo);
-	INIT_LIST_HEAD(&io->ci_lockset.cls_curr);
-	INIT_LIST_HEAD(&io->ci_lockset.cls_done);
-	INIT_LIST_HEAD(&io->ci_layers);
-
-	result = 0;
-	cl_object_for_each(scan, obj) {
-		if (scan->co_ops->coo_io_init != NULL) {
-			result = scan->co_ops->coo_io_init(env, scan, io);
-			if (result != 0)
-				break;
-		}
-	}
-	if (result == 0)
-		io->ci_state = CIS_INIT;
-	return result;
-}
-
-/**
- * Initialize sub-io, by calling cl_io_operations::cio_init() top-to-bottom.
- *
- * \pre obj != cl_object_top(obj)
- */
-int cl_io_sub_init(const struct lu_env *env, struct cl_io *io,
-		   enum cl_io_type iot, struct cl_object *obj)
-{
-	struct cl_thread_info *info = cl_env_info(env);
-
-	LASSERT(obj != cl_object_top(obj));
-	if (info->clt_current_io == NULL)
-		info->clt_current_io = io;
-	return cl_io_init0(env, io, iot, obj);
-}
-EXPORT_SYMBOL(cl_io_sub_init);
-
-/**
- * Initialize \a io, by calling cl_io_operations::cio_init() top-to-bottom.
- *
- * Caller has to call cl_io_fini() after a call to cl_io_init(), no matter
- * what the latter returned.
- *
- * \pre obj == cl_object_top(obj)
- * \pre cl_io_type_is_valid(iot)
- * \post cl_io_type_is_valid(io->ci_type) && io->ci_type == iot
- */
-int cl_io_init(const struct lu_env *env, struct cl_io *io,
-	       enum cl_io_type iot, struct cl_object *obj)
-{
-	struct cl_thread_info *info = cl_env_info(env);
-
-	LASSERT(obj == cl_object_top(obj));
-	LASSERT(info->clt_current_io == NULL);
-
-	info->clt_current_io = io;
-	return cl_io_init0(env, io, iot, obj);
-}
-EXPORT_SYMBOL(cl_io_init);
-
-/**
- * Initialize read or write io.
- *
- * \pre iot == CIT_READ || iot == CIT_WRITE
- */
-int cl_io_rw_init(const struct lu_env *env, struct cl_io *io,
-		  enum cl_io_type iot, loff_t pos, size_t count)
-{
-	LINVRNT(iot == CIT_READ || iot == CIT_WRITE);
-	LINVRNT(io->ci_obj != NULL);
-
-	LU_OBJECT_HEADER(D_VFSTRACE, env, &io->ci_obj->co_lu,
-			 "io range: %u [%llu, %llu) %u %u\n",
-			 iot, (__u64)pos, (__u64)pos + count,
-			 io->u.ci_rw.crw_nonblock, io->u.ci_wr.wr_append);
-	io->u.ci_rw.crw_pos    = pos;
-	io->u.ci_rw.crw_count  = count;
-	return cl_io_init(env, io, iot, io->ci_obj);
-}
-EXPORT_SYMBOL(cl_io_rw_init);
-
-static inline const struct lu_fid *
-cl_lock_descr_fid(const struct cl_lock_descr *descr)
-{
-	return lu_object_fid(&descr->cld_obj->co_lu);
-}
-
-static int cl_lock_descr_sort(const struct cl_lock_descr *d0,
-			      const struct cl_lock_descr *d1)
-{
-	return lu_fid_cmp(cl_lock_descr_fid(d0), cl_lock_descr_fid(d1)) ?:
-		__diff_normalize(d0->cld_start, d1->cld_start);
-}
-
-static int cl_lock_descr_cmp(const struct cl_lock_descr *d0,
-			     const struct cl_lock_descr *d1)
-{
-	int ret;
-
-	ret = lu_fid_cmp(cl_lock_descr_fid(d0), cl_lock_descr_fid(d1));
-	if (ret)
-		return ret;
-	if (d0->cld_end < d1->cld_start)
-		return -1;
-	if (d0->cld_start > d0->cld_end)
-		return 1;
-	return 0;
-}
-
-static void cl_lock_descr_merge(struct cl_lock_descr *d0,
-				const struct cl_lock_descr *d1)
-{
-	d0->cld_start = min(d0->cld_start, d1->cld_start);
-	d0->cld_end = max(d0->cld_end, d1->cld_end);
-
-	if (d1->cld_mode == CLM_WRITE && d0->cld_mode != CLM_WRITE)
-		d0->cld_mode = CLM_WRITE;
-
-	if (d1->cld_mode == CLM_GROUP && d0->cld_mode != CLM_GROUP)
-		d0->cld_mode = CLM_GROUP;
-}
-
-/*
- * Sort locks in lexicographical order of their (fid, start-offset) pairs.
- */
-static void cl_io_locks_sort(struct cl_io *io)
-{
-	int done = 0;
-
-	/* hidden treasure: bubble sort for now. */
-	do {
-		struct cl_io_lock_link *curr;
-		struct cl_io_lock_link *prev;
-		struct cl_io_lock_link *temp;
-
-		done = 1;
-		prev = NULL;
-
-		list_for_each_entry_safe(curr, temp,
-					     &io->ci_lockset.cls_todo,
-					     cill_linkage) {
-			if (prev != NULL) {
-				switch (cl_lock_descr_sort(&prev->cill_descr,
-							  &curr->cill_descr)) {
-				case 0:
-					/*
-					 * IMPOSSIBLE: Identical locks are
-					 *	     already removed at
-					 *	     this point.
-					 */
-				default:
-					LBUG();
-				case +1:
-					list_move_tail(&curr->cill_linkage,
-							   &prev->cill_linkage);
-					done = 0;
-					continue; /* don't change prev: it's
-						   * still "previous" */
-				case -1: /* already in order */
-					break;
-				}
-			}
-			prev = curr;
-		}
-	} while (!done);
-}
-
-/**
- * Check whether \a queue contains locks matching \a need.
- *
- * \retval +ve there is a matching lock in the \a queue
- * \retval   0 there are no matching locks in the \a queue
- */
-int cl_queue_match(const struct list_head *queue,
-		   const struct cl_lock_descr *need)
-{
-       struct cl_io_lock_link *scan;
-
-       list_for_each_entry(scan, queue, cill_linkage) {
-	       if (cl_lock_descr_match(&scan->cill_descr, need))
-		       return +1;
-       }
-       return 0;
-}
-EXPORT_SYMBOL(cl_queue_match);
-
-static int cl_queue_merge(const struct list_head *queue,
-			  const struct cl_lock_descr *need)
-{
-       struct cl_io_lock_link *scan;
-
-       list_for_each_entry(scan, queue, cill_linkage) {
-	       if (cl_lock_descr_cmp(&scan->cill_descr, need))
-		       continue;
-	       cl_lock_descr_merge(&scan->cill_descr, need);
-	       CDEBUG(D_VFSTRACE, "lock: %d: [%lu, %lu]\n",
-		      scan->cill_descr.cld_mode, scan->cill_descr.cld_start,
-		      scan->cill_descr.cld_end);
-	       return +1;
-       }
-       return 0;
-
-}
-
-static int cl_lockset_match(const struct cl_lockset *set,
-			    const struct cl_lock_descr *need)
-{
-	return cl_queue_match(&set->cls_curr, need) ||
-	       cl_queue_match(&set->cls_done, need);
-}
-
-static int cl_lockset_merge(const struct cl_lockset *set,
-			    const struct cl_lock_descr *need)
-{
-	return cl_queue_merge(&set->cls_todo, need) ||
-	       cl_lockset_match(set, need);
-}
-
-static int cl_lockset_lock_one(const struct lu_env *env,
-			       struct cl_io *io, struct cl_lockset *set,
-			       struct cl_io_lock_link *link)
-{
-	struct cl_lock *lock;
-	int	     result;
-
-	lock = cl_lock_request(env, io, &link->cill_descr, "io", io);
-
-	if (!IS_ERR(lock)) {
-		link->cill_lock = lock;
-		list_move(&link->cill_linkage, &set->cls_curr);
-		if (!(link->cill_descr.cld_enq_flags & CEF_ASYNC)) {
-			result = cl_wait(env, lock);
-			if (result == 0)
-				list_move(&link->cill_linkage,
-					      &set->cls_done);
-		} else
-			result = 0;
-	} else
-		result = PTR_ERR(lock);
-	return result;
-}
-
-static void cl_lock_link_fini(const struct lu_env *env, struct cl_io *io,
-			      struct cl_io_lock_link *link)
-{
-	struct cl_lock *lock = link->cill_lock;
-
-	list_del_init(&link->cill_linkage);
-	if (lock != NULL) {
-		cl_lock_release(env, lock, "io", io);
-		link->cill_lock = NULL;
-	}
-	if (link->cill_fini != NULL)
-		link->cill_fini(env, link);
-}
-
-static int cl_lockset_lock(const struct lu_env *env, struct cl_io *io,
-			   struct cl_lockset *set)
-{
-	struct cl_io_lock_link *link;
-	struct cl_io_lock_link *temp;
-	struct cl_lock	 *lock;
-	int result;
-
-	result = 0;
-	list_for_each_entry_safe(link, temp, &set->cls_todo, cill_linkage) {
-		if (!cl_lockset_match(set, &link->cill_descr)) {
-			/* XXX some locking to guarantee that locks aren't
-			 * expanded in between. */
-			result = cl_lockset_lock_one(env, io, set, link);
-			if (result != 0)
-				break;
-		} else
-			cl_lock_link_fini(env, io, link);
-	}
-	if (result == 0) {
-		list_for_each_entry_safe(link, temp,
-					     &set->cls_curr, cill_linkage) {
-			lock = link->cill_lock;
-			result = cl_wait(env, lock);
-			if (result == 0)
-				list_move(&link->cill_linkage,
-					      &set->cls_done);
-			else
-				break;
-		}
-	}
-	return result;
-}
-
-/**
- * Takes locks necessary for the current iteration of io.
- *
- * Calls cl_io_operations::cio_lock() top-to-bottom to collect locks required
- * by layers for the current iteration. Then sort locks (to avoid dead-locks),
- * and acquire them.
- */
-int cl_io_lock(const struct lu_env *env, struct cl_io *io)
-{
-	const struct cl_io_slice *scan;
-	int result = 0;
-
-	LINVRNT(cl_io_is_loopable(io));
-	LINVRNT(io->ci_state == CIS_IT_STARTED);
-	LINVRNT(cl_io_invariant(io));
-
-	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_lock == NULL)
-			continue;
-		result = scan->cis_iop->op[io->ci_type].cio_lock(env, scan);
-		if (result != 0)
-			break;
-	}
-	if (result == 0) {
-		cl_io_locks_sort(io);
-		result = cl_lockset_lock(env, io, &io->ci_lockset);
-	}
-	if (result != 0)
-		cl_io_unlock(env, io);
-	else
-		io->ci_state = CIS_LOCKED;
-	return result;
-}
-EXPORT_SYMBOL(cl_io_lock);
-
-/**
- * Release locks takes by io.
- */
-void cl_io_unlock(const struct lu_env *env, struct cl_io *io)
-{
-	struct cl_lockset	*set;
-	struct cl_io_lock_link   *link;
-	struct cl_io_lock_link   *temp;
-	const struct cl_io_slice *scan;
-
-	LASSERT(cl_io_is_loopable(io));
-	LASSERT(CIS_IT_STARTED <= io->ci_state && io->ci_state < CIS_UNLOCKED);
-	LINVRNT(cl_io_invariant(io));
-
-	set = &io->ci_lockset;
-
-	list_for_each_entry_safe(link, temp, &set->cls_todo, cill_linkage)
-		cl_lock_link_fini(env, io, link);
-
-	list_for_each_entry_safe(link, temp, &set->cls_curr, cill_linkage)
-		cl_lock_link_fini(env, io, link);
-
-	list_for_each_entry_safe(link, temp, &set->cls_done, cill_linkage) {
-		cl_unuse(env, link->cill_lock);
-		cl_lock_link_fini(env, io, link);
-	}
-	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_unlock != NULL)
-			scan->cis_iop->op[io->ci_type].cio_unlock(env, scan);
-	}
-	io->ci_state = CIS_UNLOCKED;
-	LASSERT(!cl_env_info(env)->clt_counters[CNL_TOP].ctc_nr_locks_acquired);
-}
-EXPORT_SYMBOL(cl_io_unlock);
-
-/**
- * Prepares next iteration of io.
- *
- * Calls cl_io_operations::cio_iter_init() top-to-bottom. This exists to give
- * layers a chance to modify io parameters, e.g., so that lov can restrict io
- * to a single stripe.
- */
-int cl_io_iter_init(const struct lu_env *env, struct cl_io *io)
-{
-	const struct cl_io_slice *scan;
-	int result;
-
-	LINVRNT(cl_io_is_loopable(io));
-	LINVRNT(io->ci_state == CIS_INIT || io->ci_state == CIS_IT_ENDED);
-	LINVRNT(cl_io_invariant(io));
-
-	result = 0;
-	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_iter_init == NULL)
-			continue;
-		result = scan->cis_iop->op[io->ci_type].cio_iter_init(env,
-								      scan);
-		if (result != 0)
-			break;
-	}
-	if (result == 0)
-		io->ci_state = CIS_IT_STARTED;
-	return result;
-}
-EXPORT_SYMBOL(cl_io_iter_init);
-
-/**
- * Finalizes io iteration.
- *
- * Calls cl_io_operations::cio_iter_fini() bottom-to-top.
- */
-void cl_io_iter_fini(const struct lu_env *env, struct cl_io *io)
-{
-	const struct cl_io_slice *scan;
-
-	LINVRNT(cl_io_is_loopable(io));
-	LINVRNT(io->ci_state == CIS_UNLOCKED);
-	LINVRNT(cl_io_invariant(io));
-
-	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_iter_fini != NULL)
-			scan->cis_iop->op[io->ci_type].cio_iter_fini(env, scan);
-	}
-	io->ci_state = CIS_IT_ENDED;
-}
-EXPORT_SYMBOL(cl_io_iter_fini);
-
-/**
- * Records that read or write io progressed \a nob bytes forward.
- */
-void cl_io_rw_advance(const struct lu_env *env, struct cl_io *io, size_t nob)
-{
-	const struct cl_io_slice *scan;
-
-	LINVRNT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE ||
-		nob == 0);
-	LINVRNT(cl_io_is_loopable(io));
-	LINVRNT(cl_io_invariant(io));
-
-	io->u.ci_rw.crw_pos   += nob;
-	io->u.ci_rw.crw_count -= nob;
-
-	/* layers have to be notified. */
-	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_advance != NULL)
-			scan->cis_iop->op[io->ci_type].cio_advance(env, scan,
-								   nob);
-	}
-}
-EXPORT_SYMBOL(cl_io_rw_advance);
-
-/**
- * Adds a lock to a lockset.
- */
-int cl_io_lock_add(const struct lu_env *env, struct cl_io *io,
-		   struct cl_io_lock_link *link)
-{
-	int result;
-
-	if (cl_lockset_merge(&io->ci_lockset, &link->cill_descr))
-		result = +1;
-	else {
-		list_add(&link->cill_linkage, &io->ci_lockset.cls_todo);
-		result = 0;
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_io_lock_add);
-
-static void cl_free_io_lock_link(const struct lu_env *env,
-				 struct cl_io_lock_link *link)
-{
-	kfree(link);
-}
-
-/**
- * Allocates new lock link, and uses it to add a lock to a lockset.
- */
-int cl_io_lock_alloc_add(const struct lu_env *env, struct cl_io *io,
-			 struct cl_lock_descr *descr)
-{
-	struct cl_io_lock_link *link;
-	int result;
-
-	link = kzalloc(sizeof(*link), GFP_NOFS);
-	if (link != NULL) {
-		link->cill_descr     = *descr;
-		link->cill_fini      = cl_free_io_lock_link;
-		result = cl_io_lock_add(env, io, link);
-		if (result) /* lock match */
-			link->cill_fini(env, link);
-	} else
-		result = -ENOMEM;
-
-	return result;
-}
-EXPORT_SYMBOL(cl_io_lock_alloc_add);
-
-/**
- * Starts io by calling cl_io_operations::cio_start() top-to-bottom.
- */
-int cl_io_start(const struct lu_env *env, struct cl_io *io)
-{
-	const struct cl_io_slice *scan;
-	int result = 0;
-
-	LINVRNT(cl_io_is_loopable(io));
-	LINVRNT(io->ci_state == CIS_LOCKED);
-	LINVRNT(cl_io_invariant(io));
-
-	io->ci_state = CIS_IO_GOING;
-	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_start == NULL)
-			continue;
-		result = scan->cis_iop->op[io->ci_type].cio_start(env, scan);
-		if (result != 0)
-			break;
-	}
-	if (result >= 0)
-		result = 0;
-	return result;
-}
-EXPORT_SYMBOL(cl_io_start);
-
-/**
- * Wait until current io iteration is finished by calling
- * cl_io_operations::cio_end() bottom-to-top.
- */
-void cl_io_end(const struct lu_env *env, struct cl_io *io)
-{
-	const struct cl_io_slice *scan;
-
-	LINVRNT(cl_io_is_loopable(io));
-	LINVRNT(io->ci_state == CIS_IO_GOING);
-	LINVRNT(cl_io_invariant(io));
-
-	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->op[io->ci_type].cio_end != NULL)
-			scan->cis_iop->op[io->ci_type].cio_end(env, scan);
-		/* TODO: error handling. */
-	}
-	io->ci_state = CIS_IO_FINISHED;
-}
-EXPORT_SYMBOL(cl_io_end);
-
-static const struct cl_page_slice *
-cl_io_slice_page(const struct cl_io_slice *ios, struct cl_page *page)
-{
-	const struct cl_page_slice *slice;
-
-	slice = cl_page_at(page, ios->cis_obj->co_lu.lo_dev->ld_type);
-	LINVRNT(slice != NULL);
-	return slice;
-}
-
-/**
- * True iff \a page is within \a io range.
- */
-static int cl_page_in_io(const struct cl_page *page, const struct cl_io *io)
-{
-	int     result = 1;
-	loff_t  start;
-	loff_t  end;
-	pgoff_t idx;
-
-	idx = page->cp_index;
-	switch (io->ci_type) {
-	case CIT_READ:
-	case CIT_WRITE:
-		/*
-		 * check that [start, end) and [pos, pos + count) extents
-		 * overlap.
-		 */
-		if (!cl_io_is_append(io)) {
-			const struct cl_io_rw_common *crw = &(io->u.ci_rw);
-			start = cl_offset(page->cp_obj, idx);
-			end   = cl_offset(page->cp_obj, idx + 1);
-			result = crw->crw_pos < end &&
-				 start < crw->crw_pos + crw->crw_count;
-		}
-		break;
-	case CIT_FAULT:
-		result = io->u.ci_fault.ft_index == idx;
-		break;
-	default:
-		LBUG();
-	}
-	return result;
-}
-
-/**
- * Called by read io, when page has to be read from the server.
- *
- * \see cl_io_operations::cio_read_page()
- */
-int cl_io_read_page(const struct lu_env *env, struct cl_io *io,
-		    struct cl_page *page)
-{
-	const struct cl_io_slice *scan;
-	struct cl_2queue	 *queue;
-	int		       result = 0;
-
-	LINVRNT(io->ci_type == CIT_READ || io->ci_type == CIT_FAULT);
-	LINVRNT(cl_page_is_owned(page, io));
-	LINVRNT(io->ci_state == CIS_IO_GOING || io->ci_state == CIS_LOCKED);
-	LINVRNT(cl_page_in_io(page, io));
-	LINVRNT(cl_io_invariant(io));
-
-	queue = &io->ci_queue;
-
-	cl_2queue_init(queue);
-	/*
-	 * ->cio_read_page() methods called in the loop below are supposed to
-	 * never block waiting for network (the only subtle point is the
-	 * creation of new pages for read-ahead that might result in cache
-	 * shrinking, but currently only clean pages are shrunk and this
-	 * requires no network io).
-	 *
-	 * Should this ever starts blocking, retry loop would be needed for
-	 * "parallel io" (see CLO_REPEAT loops in cl_lock.c).
-	 */
-	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->cio_read_page != NULL) {
-			const struct cl_page_slice *slice;
-
-			slice = cl_io_slice_page(scan, page);
-			LINVRNT(slice != NULL);
-			result = scan->cis_iop->cio_read_page(env, scan, slice);
-			if (result != 0)
-				break;
-		}
-	}
-	if (result == 0)
-		result = cl_io_submit_rw(env, io, CRT_READ, queue);
-	/*
-	 * Unlock unsent pages in case of error.
-	 */
-	cl_page_list_disown(env, io, &queue->c2_qin);
-	cl_2queue_fini(env, queue);
-	return result;
-}
-EXPORT_SYMBOL(cl_io_read_page);
-
-/**
- * Called by write io to prepare page to receive data from user buffer.
- *
- * \see cl_io_operations::cio_prepare_write()
- */
-int cl_io_prepare_write(const struct lu_env *env, struct cl_io *io,
-			struct cl_page *page, unsigned from, unsigned to)
-{
-	const struct cl_io_slice *scan;
-	int result = 0;
-
-	LINVRNT(io->ci_type == CIT_WRITE);
-	LINVRNT(cl_page_is_owned(page, io));
-	LINVRNT(io->ci_state == CIS_IO_GOING || io->ci_state == CIS_LOCKED);
-	LINVRNT(cl_io_invariant(io));
-	LASSERT(cl_page_in_io(page, io));
-
-	cl_io_for_each_reverse(scan, io) {
-		if (scan->cis_iop->cio_prepare_write != NULL) {
-			const struct cl_page_slice *slice;
-
-			slice = cl_io_slice_page(scan, page);
-			result = scan->cis_iop->cio_prepare_write(env, scan,
-								  slice,
-								  from, to);
-			if (result != 0)
-				break;
-		}
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_io_prepare_write);
-
-/**
- * Called by write io after user data were copied into a page.
- *
- * \see cl_io_operations::cio_commit_write()
- */
-int cl_io_commit_write(const struct lu_env *env, struct cl_io *io,
-		       struct cl_page *page, unsigned from, unsigned to)
-{
-	const struct cl_io_slice *scan;
-	int result = 0;
-
-	LINVRNT(io->ci_type == CIT_WRITE);
-	LINVRNT(io->ci_state == CIS_IO_GOING || io->ci_state == CIS_LOCKED);
-	LINVRNT(cl_io_invariant(io));
-	/*
-	 * XXX Uh... not nice. Top level cl_io_commit_write() call (vvp->lov)
-	 * already called cl_page_cache_add(), moving page into CPS_CACHED
-	 * state. Better (and more general) way of dealing with such situation
-	 * is needed.
-	 */
-	LASSERT(cl_page_is_owned(page, io) || page->cp_parent != NULL);
-	LASSERT(cl_page_in_io(page, io));
-
-	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->cio_commit_write != NULL) {
-			const struct cl_page_slice *slice;
-
-			slice = cl_io_slice_page(scan, page);
-			result = scan->cis_iop->cio_commit_write(env, scan,
-								 slice,
-								 from, to);
-			if (result != 0)
-				break;
-		}
-	}
-	LINVRNT(result <= 0);
-	return result;
-}
-EXPORT_SYMBOL(cl_io_commit_write);
-
-/**
- * Submits a list of pages for immediate io.
- *
- * After the function gets returned, The submitted pages are moved to
- * queue->c2_qout queue, and queue->c2_qin contain both the pages don't need
- * to be submitted, and the pages are errant to submit.
- *
- * \returns 0 if at least one page was submitted, error code otherwise.
- * \see cl_io_operations::cio_submit()
- */
-int cl_io_submit_rw(const struct lu_env *env, struct cl_io *io,
-		    enum cl_req_type crt, struct cl_2queue *queue)
-{
-	const struct cl_io_slice *scan;
-	int result = 0;
-
-	LINVRNT(crt < ARRAY_SIZE(scan->cis_iop->req_op));
-
-	cl_io_for_each(scan, io) {
-		if (scan->cis_iop->req_op[crt].cio_submit == NULL)
-			continue;
-		result = scan->cis_iop->req_op[crt].cio_submit(env, scan, crt,
-							       queue);
-		if (result != 0)
-			break;
-	}
-	/*
-	 * If ->cio_submit() failed, no pages were sent.
-	 */
-	LASSERT(ergo(result != 0, list_empty(&queue->c2_qout.pl_pages)));
-	return result;
-}
-EXPORT_SYMBOL(cl_io_submit_rw);
-
-/**
- * Submit a sync_io and wait for the IO to be finished, or error happens.
- * If \a timeout is zero, it means to wait for the IO unconditionally.
- */
-int cl_io_submit_sync(const struct lu_env *env, struct cl_io *io,
-		      enum cl_req_type iot, struct cl_2queue *queue,
-		      long timeout)
-{
-	struct cl_sync_io *anchor = &cl_env_info(env)->clt_anchor;
-	struct cl_page *pg;
-	int rc;
-
-	cl_page_list_for_each(pg, &queue->c2_qin) {
-		LASSERT(pg->cp_sync_io == NULL);
-		pg->cp_sync_io = anchor;
-	}
-
-	cl_sync_io_init(anchor, queue->c2_qin.pl_nr);
-	rc = cl_io_submit_rw(env, io, iot, queue);
-	if (rc == 0) {
-		/*
-		 * If some pages weren't sent for any reason (e.g.,
-		 * read found up-to-date pages in the cache, or write found
-		 * clean pages), count them as completed to avoid infinite
-		 * wait.
-		 */
-		 cl_page_list_for_each(pg, &queue->c2_qin) {
-			pg->cp_sync_io = NULL;
-			cl_sync_io_note(anchor, +1);
-		 }
-
-		 /* wait for the IO to be finished. */
-		 rc = cl_sync_io_wait(env, io, &queue->c2_qout,
-				      anchor, timeout);
-	} else {
-		LASSERT(list_empty(&queue->c2_qout.pl_pages));
-		cl_page_list_for_each(pg, &queue->c2_qin)
-			pg->cp_sync_io = NULL;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(cl_io_submit_sync);
-
-/**
- * Cancel an IO which has been submitted by cl_io_submit_rw.
- */
-int cl_io_cancel(const struct lu_env *env, struct cl_io *io,
-		 struct cl_page_list *queue)
-{
-	struct cl_page *page;
-	int result = 0;
-
-	CERROR("Canceling ongoing page transmission\n");
-	cl_page_list_for_each(page, queue) {
-		int rc;
-
-		LINVRNT(cl_page_in_io(page, io));
-		rc = cl_page_cancel(env, page);
-		result = result ?: rc;
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_io_cancel);
-
-/**
- * Main io loop.
- *
- * Pumps io through iterations calling
- *
- *    - cl_io_iter_init()
- *
- *    - cl_io_lock()
- *
- *    - cl_io_start()
- *
- *    - cl_io_end()
- *
- *    - cl_io_unlock()
- *
- *    - cl_io_iter_fini()
- *
- * repeatedly until there is no more io to do.
- */
-int cl_io_loop(const struct lu_env *env, struct cl_io *io)
-{
-	int result   = 0;
-
-	LINVRNT(cl_io_is_loopable(io));
-
-	do {
-		size_t nob;
-
-		io->ci_continue = 0;
-		result = cl_io_iter_init(env, io);
-		if (result == 0) {
-			nob    = io->ci_nob;
-			result = cl_io_lock(env, io);
-			if (result == 0) {
-				/*
-				 * Notify layers that locks has been taken,
-				 * and do actual i/o.
-				 *
-				 *   - llite: kms, short read;
-				 *   - llite: generic_file_read();
-				 */
-				result = cl_io_start(env, io);
-				/*
-				 * Send any remaining pending
-				 * io, etc.
-				 *
-				 *   - llite: ll_rw_stats_tally.
-				 */
-				cl_io_end(env, io);
-				cl_io_unlock(env, io);
-				cl_io_rw_advance(env, io, io->ci_nob - nob);
-			}
-		}
-		cl_io_iter_fini(env, io);
-	} while (result == 0 && io->ci_continue);
-	if (result == 0)
-		result = io->ci_result;
-	return result < 0 ? result : 0;
-}
-EXPORT_SYMBOL(cl_io_loop);
-
-/**
- * Adds io slice to the cl_io.
- *
- * This is called by cl_object_operations::coo_io_init() methods to add a
- * per-layer state to the io. New state is added at the end of
- * cl_io::ci_layers list, that is, it is at the bottom of the stack.
- *
- * \see cl_lock_slice_add(), cl_req_slice_add(), cl_page_slice_add()
- */
-void cl_io_slice_add(struct cl_io *io, struct cl_io_slice *slice,
-		     struct cl_object *obj,
-		     const struct cl_io_operations *ops)
-{
-	struct list_head *linkage = &slice->cis_linkage;
-
-	LASSERT((linkage->prev == NULL && linkage->next == NULL) ||
-		list_empty(linkage));
-
-	list_add_tail(linkage, &io->ci_layers);
-	slice->cis_io  = io;
-	slice->cis_obj = obj;
-	slice->cis_iop = ops;
-}
-EXPORT_SYMBOL(cl_io_slice_add);
-
-
-/**
- * Initializes page list.
- */
-void cl_page_list_init(struct cl_page_list *plist)
-{
-	plist->pl_nr = 0;
-	INIT_LIST_HEAD(&plist->pl_pages);
-	plist->pl_owner = current;
-}
-EXPORT_SYMBOL(cl_page_list_init);
-
-/**
- * Adds a page to a page list.
- */
-void cl_page_list_add(struct cl_page_list *plist, struct cl_page *page)
-{
-	/* it would be better to check that page is owned by "current" io, but
-	 * it is not passed here. */
-	LASSERT(page->cp_owner != NULL);
-	LINVRNT(plist->pl_owner == current);
-
-	lockdep_off();
-	mutex_lock(&page->cp_mutex);
-	lockdep_on();
-	LASSERT(list_empty(&page->cp_batch));
-	list_add_tail(&page->cp_batch, &plist->pl_pages);
-	++plist->pl_nr;
-	lu_ref_add_at(&page->cp_reference, &page->cp_queue_ref, "queue", plist);
-	cl_page_get(page);
-}
-EXPORT_SYMBOL(cl_page_list_add);
-
-/**
- * Removes a page from a page list.
- */
-void cl_page_list_del(const struct lu_env *env,
-		      struct cl_page_list *plist, struct cl_page *page)
-{
-	LASSERT(plist->pl_nr > 0);
-	LINVRNT(plist->pl_owner == current);
-
-	list_del_init(&page->cp_batch);
-	lockdep_off();
-	mutex_unlock(&page->cp_mutex);
-	lockdep_on();
-	--plist->pl_nr;
-	lu_ref_del_at(&page->cp_reference, &page->cp_queue_ref, "queue", plist);
-	cl_page_put(env, page);
-}
-EXPORT_SYMBOL(cl_page_list_del);
-
-/**
- * Moves a page from one page list to another.
- */
-void cl_page_list_move(struct cl_page_list *dst, struct cl_page_list *src,
-		       struct cl_page *page)
-{
-	LASSERT(src->pl_nr > 0);
-	LINVRNT(dst->pl_owner == current);
-	LINVRNT(src->pl_owner == current);
-
-	list_move_tail(&page->cp_batch, &dst->pl_pages);
-	--src->pl_nr;
-	++dst->pl_nr;
-	lu_ref_set_at(&page->cp_reference, &page->cp_queue_ref, "queue",
-		      src, dst);
-}
-EXPORT_SYMBOL(cl_page_list_move);
-
-/**
- * splice the cl_page_list, just as list head does
- */
-void cl_page_list_splice(struct cl_page_list *list, struct cl_page_list *head)
-{
-	struct cl_page *page;
-	struct cl_page *tmp;
-
-	LINVRNT(list->pl_owner == current);
-	LINVRNT(head->pl_owner == current);
-
-	cl_page_list_for_each_safe(page, tmp, list)
-		cl_page_list_move(head, list, page);
-}
-EXPORT_SYMBOL(cl_page_list_splice);
-
-void cl_page_disown0(const struct lu_env *env,
-		     struct cl_io *io, struct cl_page *pg);
-
-/**
- * Disowns pages in a queue.
- */
-void cl_page_list_disown(const struct lu_env *env,
-			 struct cl_io *io, struct cl_page_list *plist)
-{
-	struct cl_page *page;
-	struct cl_page *temp;
-
-	LINVRNT(plist->pl_owner == current);
-
-	cl_page_list_for_each_safe(page, temp, plist) {
-		LASSERT(plist->pl_nr > 0);
-
-		list_del_init(&page->cp_batch);
-		lockdep_off();
-		mutex_unlock(&page->cp_mutex);
-		lockdep_on();
-		--plist->pl_nr;
-		/*
-		 * cl_page_disown0 rather than usual cl_page_disown() is used,
-		 * because pages are possibly in CPS_FREEING state already due
-		 * to the call to cl_page_list_discard().
-		 */
-		/*
-		 * XXX cl_page_disown0() will fail if page is not locked.
-		 */
-		cl_page_disown0(env, io, page);
-		lu_ref_del_at(&page->cp_reference, &page->cp_queue_ref, "queue",
-			      plist);
-		cl_page_put(env, page);
-	}
-}
-EXPORT_SYMBOL(cl_page_list_disown);
-
-/**
- * Releases pages from queue.
- */
-void cl_page_list_fini(const struct lu_env *env, struct cl_page_list *plist)
-{
-	struct cl_page *page;
-	struct cl_page *temp;
-
-	LINVRNT(plist->pl_owner == current);
-
-	cl_page_list_for_each_safe(page, temp, plist)
-		cl_page_list_del(env, plist, page);
-	LASSERT(plist->pl_nr == 0);
-}
-EXPORT_SYMBOL(cl_page_list_fini);
-
-/**
- * Owns all pages in a queue.
- */
-int cl_page_list_own(const struct lu_env *env,
-		     struct cl_io *io, struct cl_page_list *plist)
-{
-	struct cl_page *page;
-	struct cl_page *temp;
-	pgoff_t index = 0;
-	int result;
-
-	LINVRNT(plist->pl_owner == current);
-
-	result = 0;
-	cl_page_list_for_each_safe(page, temp, plist) {
-		LASSERT(index <= page->cp_index);
-		index = page->cp_index;
-		if (cl_page_own(env, io, page) == 0)
-			result = result ?: page->cp_error;
-		else
-			cl_page_list_del(env, plist, page);
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_page_list_own);
-
-/**
- * Assumes all pages in a queue.
- */
-void cl_page_list_assume(const struct lu_env *env,
-			 struct cl_io *io, struct cl_page_list *plist)
-{
-	struct cl_page *page;
-
-	LINVRNT(plist->pl_owner == current);
-
-	cl_page_list_for_each(page, plist)
-		cl_page_assume(env, io, page);
-}
-EXPORT_SYMBOL(cl_page_list_assume);
-
-/**
- * Discards all pages in a queue.
- */
-void cl_page_list_discard(const struct lu_env *env, struct cl_io *io,
-			  struct cl_page_list *plist)
-{
-	struct cl_page *page;
-
-	LINVRNT(plist->pl_owner == current);
-	cl_page_list_for_each(page, plist)
-		cl_page_discard(env, io, page);
-}
-EXPORT_SYMBOL(cl_page_list_discard);
-
-/**
- * Unmaps all pages in a queue from user virtual memory.
- */
-int cl_page_list_unmap(const struct lu_env *env, struct cl_io *io,
-			struct cl_page_list *plist)
-{
-	struct cl_page *page;
-	int result;
-
-	LINVRNT(plist->pl_owner == current);
-	result = 0;
-	cl_page_list_for_each(page, plist) {
-		result = cl_page_unmap(env, io, page);
-		if (result != 0)
-			break;
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_page_list_unmap);
-
-/**
- * Initialize dual page queue.
- */
-void cl_2queue_init(struct cl_2queue *queue)
-{
-	cl_page_list_init(&queue->c2_qin);
-	cl_page_list_init(&queue->c2_qout);
-}
-EXPORT_SYMBOL(cl_2queue_init);
-
-/**
- * Add a page to the incoming page list of 2-queue.
- */
-void cl_2queue_add(struct cl_2queue *queue, struct cl_page *page)
-{
-	cl_page_list_add(&queue->c2_qin, page);
-}
-EXPORT_SYMBOL(cl_2queue_add);
-
-/**
- * Disown pages in both lists of a 2-queue.
- */
-void cl_2queue_disown(const struct lu_env *env,
-		      struct cl_io *io, struct cl_2queue *queue)
-{
-	cl_page_list_disown(env, io, &queue->c2_qin);
-	cl_page_list_disown(env, io, &queue->c2_qout);
-}
-EXPORT_SYMBOL(cl_2queue_disown);
-
-/**
- * Discard (truncate) pages in both lists of a 2-queue.
- */
-void cl_2queue_discard(const struct lu_env *env,
-		       struct cl_io *io, struct cl_2queue *queue)
-{
-	cl_page_list_discard(env, io, &queue->c2_qin);
-	cl_page_list_discard(env, io, &queue->c2_qout);
-}
-EXPORT_SYMBOL(cl_2queue_discard);
-
-/**
- * Assume to own the pages in cl_2queue
- */
-void cl_2queue_assume(const struct lu_env *env,
-		      struct cl_io *io, struct cl_2queue *queue)
-{
-	cl_page_list_assume(env, io, &queue->c2_qin);
-	cl_page_list_assume(env, io, &queue->c2_qout);
-}
-EXPORT_SYMBOL(cl_2queue_assume);
-
-/**
- * Finalize both page lists of a 2-queue.
- */
-void cl_2queue_fini(const struct lu_env *env, struct cl_2queue *queue)
-{
-	cl_page_list_fini(env, &queue->c2_qout);
-	cl_page_list_fini(env, &queue->c2_qin);
-}
-EXPORT_SYMBOL(cl_2queue_fini);
-
-/**
- * Initialize a 2-queue to contain \a page in its incoming page list.
- */
-void cl_2queue_init_page(struct cl_2queue *queue, struct cl_page *page)
-{
-	cl_2queue_init(queue);
-	cl_2queue_add(queue, page);
-}
-EXPORT_SYMBOL(cl_2queue_init_page);
-
-/**
- * Returns top-level io.
- *
- * \see cl_object_top(), cl_page_top().
- */
-struct cl_io *cl_io_top(struct cl_io *io)
-{
-	while (io->ci_parent != NULL)
-		io = io->ci_parent;
-	return io;
-}
-EXPORT_SYMBOL(cl_io_top);
-
-/**
- * Prints human readable representation of \a io to the \a f.
- */
-void cl_io_print(const struct lu_env *env, void *cookie,
-		 lu_printer_t printer, const struct cl_io *io)
-{
-}
-
-/**
- * Adds request slice to the compound request.
- *
- * This is called by cl_device_operations::cdo_req_init() methods to add a
- * per-layer state to the request. New state is added at the end of
- * cl_req::crq_layers list, that is, it is at the bottom of the stack.
- *
- * \see cl_lock_slice_add(), cl_page_slice_add(), cl_io_slice_add()
- */
-void cl_req_slice_add(struct cl_req *req, struct cl_req_slice *slice,
-		      struct cl_device *dev,
-		      const struct cl_req_operations *ops)
-{
-	list_add_tail(&slice->crs_linkage, &req->crq_layers);
-	slice->crs_dev = dev;
-	slice->crs_ops = ops;
-	slice->crs_req = req;
-}
-EXPORT_SYMBOL(cl_req_slice_add);
-
-static void cl_req_free(const struct lu_env *env, struct cl_req *req)
-{
-	unsigned i;
-
-	LASSERT(list_empty(&req->crq_pages));
-	LASSERT(req->crq_nrpages == 0);
-	LINVRNT(list_empty(&req->crq_layers));
-	LINVRNT(equi(req->crq_nrobjs > 0, req->crq_o != NULL));
-
-	if (req->crq_o != NULL) {
-		for (i = 0; i < req->crq_nrobjs; ++i) {
-			struct cl_object *obj = req->crq_o[i].ro_obj;
-			if (obj != NULL) {
-				lu_object_ref_del_at(&obj->co_lu,
-						     &req->crq_o[i].ro_obj_ref,
-						     "cl_req", req);
-				cl_object_put(env, obj);
-			}
-		}
-		kfree(req->crq_o);
-	}
-	kfree(req);
-}
-
-static int cl_req_init(const struct lu_env *env, struct cl_req *req,
-		       struct cl_page *page)
-{
-	struct cl_device     *dev;
-	struct cl_page_slice *slice;
-	int result;
-
-	result = 0;
-	page = cl_page_top(page);
-	do {
-		list_for_each_entry(slice, &page->cp_layers, cpl_linkage) {
-			dev = lu2cl_dev(slice->cpl_obj->co_lu.lo_dev);
-			if (dev->cd_ops->cdo_req_init != NULL) {
-				result = dev->cd_ops->cdo_req_init(env,
-								   dev, req);
-				if (result != 0)
-					break;
-			}
-		}
-		page = page->cp_child;
-	} while (page != NULL && result == 0);
-	return result;
-}
-
-/**
- * Invokes per-request transfer completion call-backs
- * (cl_req_operations::cro_completion()) bottom-to-top.
- */
-void cl_req_completion(const struct lu_env *env, struct cl_req *req, int rc)
-{
-	struct cl_req_slice *slice;
-
-	/*
-	 * for the lack of list_for_each_entry_reverse_safe()...
-	 */
-	while (!list_empty(&req->crq_layers)) {
-		slice = list_entry(req->crq_layers.prev,
-				       struct cl_req_slice, crs_linkage);
-		list_del_init(&slice->crs_linkage);
-		if (slice->crs_ops->cro_completion != NULL)
-			slice->crs_ops->cro_completion(env, slice, rc);
-	}
-	cl_req_free(env, req);
-}
-EXPORT_SYMBOL(cl_req_completion);
-
-/**
- * Allocates new transfer request.
- */
-struct cl_req *cl_req_alloc(const struct lu_env *env, struct cl_page *page,
-			    enum cl_req_type crt, int nr_objects)
-{
-	struct cl_req *req;
-
-	LINVRNT(nr_objects > 0);
-
-	req = kzalloc(sizeof(*req), GFP_NOFS);
-	if (req != NULL) {
-		int result;
-
-		req->crq_type = crt;
-		INIT_LIST_HEAD(&req->crq_pages);
-		INIT_LIST_HEAD(&req->crq_layers);
-
-		req->crq_o = kcalloc(nr_objects, sizeof(req->crq_o[0]),
-				     GFP_NOFS);
-		if (req->crq_o != NULL) {
-			req->crq_nrobjs = nr_objects;
-			result = cl_req_init(env, req, page);
-		} else
-			result = -ENOMEM;
-		if (result != 0) {
-			cl_req_completion(env, req, result);
-			req = ERR_PTR(result);
-		}
-	} else
-		req = ERR_PTR(-ENOMEM);
-	return req;
-}
-EXPORT_SYMBOL(cl_req_alloc);
-
-/**
- * Adds a page to a request.
- */
-void cl_req_page_add(const struct lu_env *env,
-		     struct cl_req *req, struct cl_page *page)
-{
-	struct cl_object  *obj;
-	struct cl_req_obj *rqo;
-	int i;
-
-	page = cl_page_top(page);
-
-	LASSERT(list_empty(&page->cp_flight));
-	LASSERT(page->cp_req == NULL);
-
-	CL_PAGE_DEBUG(D_PAGE, env, page, "req %p, %d, %u\n",
-		      req, req->crq_type, req->crq_nrpages);
-
-	list_add_tail(&page->cp_flight, &req->crq_pages);
-	++req->crq_nrpages;
-	page->cp_req = req;
-	obj = cl_object_top(page->cp_obj);
-	for (i = 0, rqo = req->crq_o; obj != rqo->ro_obj; ++i, ++rqo) {
-		if (rqo->ro_obj == NULL) {
-			rqo->ro_obj = obj;
-			cl_object_get(obj);
-			lu_object_ref_add_at(&obj->co_lu, &rqo->ro_obj_ref,
-					     "cl_req", req);
-			break;
-		}
-	}
-	LASSERT(i < req->crq_nrobjs);
-}
-EXPORT_SYMBOL(cl_req_page_add);
-
-/**
- * Removes a page from a request.
- */
-void cl_req_page_done(const struct lu_env *env, struct cl_page *page)
-{
-	struct cl_req *req = page->cp_req;
-
-	page = cl_page_top(page);
-
-	LASSERT(!list_empty(&page->cp_flight));
-	LASSERT(req->crq_nrpages > 0);
-
-	list_del_init(&page->cp_flight);
-	--req->crq_nrpages;
-	page->cp_req = NULL;
-}
-EXPORT_SYMBOL(cl_req_page_done);
-
-/**
- * Notifies layers that request is about to depart by calling
- * cl_req_operations::cro_prep() top-to-bottom.
- */
-int cl_req_prep(const struct lu_env *env, struct cl_req *req)
-{
-	int i;
-	int result;
-	const struct cl_req_slice *slice;
-
-	/*
-	 * Check that the caller of cl_req_alloc() didn't lie about the number
-	 * of objects.
-	 */
-	for (i = 0; i < req->crq_nrobjs; ++i)
-		LASSERT(req->crq_o[i].ro_obj != NULL);
-
-	result = 0;
-	list_for_each_entry(slice, &req->crq_layers, crs_linkage) {
-		if (slice->crs_ops->cro_prep != NULL) {
-			result = slice->crs_ops->cro_prep(env, slice);
-			if (result != 0)
-				break;
-		}
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_req_prep);
-
-/**
- * Fills in attributes that are passed to server together with transfer. Only
- * attributes from \a flags may be touched. This can be called multiple times
- * for the same request.
- */
-void cl_req_attr_set(const struct lu_env *env, struct cl_req *req,
-		     struct cl_req_attr *attr, u64 flags)
-{
-	const struct cl_req_slice *slice;
-	struct cl_page	    *page;
-	int i;
-
-	LASSERT(!list_empty(&req->crq_pages));
-
-	/* Take any page to use as a model. */
-	page = list_entry(req->crq_pages.next, struct cl_page, cp_flight);
-
-	for (i = 0; i < req->crq_nrobjs; ++i) {
-		list_for_each_entry(slice, &req->crq_layers, crs_linkage) {
-			const struct cl_page_slice *scan;
-			const struct cl_object     *obj;
-
-			scan = cl_page_at(page,
-					  slice->crs_dev->cd_lu_dev.ld_type);
-			LASSERT(scan != NULL);
-			obj = scan->cpl_obj;
-			if (slice->crs_ops->cro_attr_set != NULL)
-				slice->crs_ops->cro_attr_set(env, slice, obj,
-							     attr + i, flags);
-		}
-	}
-}
-EXPORT_SYMBOL(cl_req_attr_set);
-
-/* XXX complete(), init_completion(), and wait_for_completion(), until they are
- * implemented in libcfs. */
-# include <linux/sched.h>
-
-/**
- * Initialize synchronous io wait anchor, for transfer of \a nrpages pages.
- */
-void cl_sync_io_init(struct cl_sync_io *anchor, int nrpages)
-{
-	init_waitqueue_head(&anchor->csi_waitq);
-	atomic_set(&anchor->csi_sync_nr, nrpages);
-	atomic_set(&anchor->csi_barrier, nrpages > 0);
-	anchor->csi_sync_rc = 0;
-}
-EXPORT_SYMBOL(cl_sync_io_init);
-
-/**
- * Wait until all transfer completes. Transfer completion routine has to call
- * cl_sync_io_note() for every page.
- */
-int cl_sync_io_wait(const struct lu_env *env, struct cl_io *io,
-		    struct cl_page_list *queue, struct cl_sync_io *anchor,
-		    long timeout)
-{
-	struct l_wait_info lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(timeout),
-						  NULL, NULL, NULL);
-	int rc;
-
-	LASSERT(timeout >= 0);
-
-	rc = l_wait_event(anchor->csi_waitq,
-			  atomic_read(&anchor->csi_sync_nr) == 0,
-			  &lwi);
-	if (rc < 0) {
-		CERROR("SYNC IO failed with error: %d, try to cancel %d remaining pages\n",
-		       rc, atomic_read(&anchor->csi_sync_nr));
-
-		(void)cl_io_cancel(env, io, queue);
-
-		lwi = (struct l_wait_info) { 0 };
-		(void)l_wait_event(anchor->csi_waitq,
-				   atomic_read(&anchor->csi_sync_nr) == 0,
-				   &lwi);
-	} else {
-		rc = anchor->csi_sync_rc;
-	}
-	LASSERT(atomic_read(&anchor->csi_sync_nr) == 0);
-	cl_page_list_assume(env, io, queue);
-
-	/* wait until cl_sync_io_note() has done wakeup */
-	while (unlikely(atomic_read(&anchor->csi_barrier) != 0)) {
-		cpu_relax();
-	}
-
-	POISON(anchor, 0x5a, sizeof(*anchor));
-	return rc;
-}
-EXPORT_SYMBOL(cl_sync_io_wait);
-
-/**
- * Indicate that transfer of a single page completed.
- */
-void cl_sync_io_note(struct cl_sync_io *anchor, int ioret)
-{
-	if (anchor->csi_sync_rc == 0 && ioret < 0)
-		anchor->csi_sync_rc = ioret;
-	/*
-	 * Synchronous IO done without releasing page lock (e.g., as a part of
-	 * ->{prepare,commit}_write(). Completion is used to signal the end of
-	 * IO.
-	 */
-	LASSERT(atomic_read(&anchor->csi_sync_nr) > 0);
-	if (atomic_dec_and_test(&anchor->csi_sync_nr)) {
-		wake_up_all(&anchor->csi_waitq);
-		/* it's safe to nuke or reuse anchor now */
-		atomic_set(&anchor->csi_barrier, 0);
-	}
-}
-EXPORT_SYMBOL(cl_sync_io_note);
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c
deleted file mode 100644
index b081167f9767..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c
+++ /dev/null
@@ -1,2239 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Client Extent Lock.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_fid.h"
-#include <linux/list.h>
-#include "../include/cl_object.h"
-#include "cl_internal.h"
-
-/** Lock class of cl_lock::cll_guard */
-static struct lock_class_key cl_lock_guard_class;
-static struct kmem_cache *cl_lock_kmem;
-
-static struct lu_kmem_descr cl_lock_caches[] = {
-	{
-		.ckd_cache = &cl_lock_kmem,
-		.ckd_name  = "cl_lock_kmem",
-		.ckd_size  = sizeof (struct cl_lock)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-#define CS_LOCK_INC(o, item)
-#define CS_LOCK_DEC(o, item)
-#define CS_LOCKSTATE_INC(o, state)
-#define CS_LOCKSTATE_DEC(o, state)
-
-/**
- * Basic lock invariant that is maintained at all times. Caller either has a
- * reference to \a lock, or somehow assures that \a lock cannot be freed.
- *
- * \see cl_lock_invariant()
- */
-static int cl_lock_invariant_trusted(const struct lu_env *env,
-				     const struct cl_lock *lock)
-{
-	return  ergo(lock->cll_state == CLS_FREEING, lock->cll_holds == 0) &&
-		atomic_read(&lock->cll_ref) >= lock->cll_holds &&
-		lock->cll_holds >= lock->cll_users &&
-		lock->cll_holds >= 0 &&
-		lock->cll_users >= 0 &&
-		lock->cll_depth >= 0;
-}
-
-/**
- * Stronger lock invariant, checking that caller has a reference on a lock.
- *
- * \see cl_lock_invariant_trusted()
- */
-static int cl_lock_invariant(const struct lu_env *env,
-			     const struct cl_lock *lock)
-{
-	int result;
-
-	result = atomic_read(&lock->cll_ref) > 0 &&
-		cl_lock_invariant_trusted(env, lock);
-	if (!result && env != NULL)
-		CL_LOCK_DEBUG(D_ERROR, env, lock, "invariant broken");
-	return result;
-}
-
-/**
- * Returns lock "nesting": 0 for a top-lock and 1 for a sub-lock.
- */
-static enum clt_nesting_level cl_lock_nesting(const struct cl_lock *lock)
-{
-	return cl_object_header(lock->cll_descr.cld_obj)->coh_nesting;
-}
-
-/**
- * Returns a set of counters for this lock, depending on a lock nesting.
- */
-static struct cl_thread_counters *cl_lock_counters(const struct lu_env *env,
-						   const struct cl_lock *lock)
-{
-	struct cl_thread_info *info;
-	enum clt_nesting_level nesting;
-
-	info = cl_env_info(env);
-	nesting = cl_lock_nesting(lock);
-	LASSERT(nesting < ARRAY_SIZE(info->clt_counters));
-	return &info->clt_counters[nesting];
-}
-
-static void cl_lock_trace0(int level, const struct lu_env *env,
-			   const char *prefix, const struct cl_lock *lock,
-			   const char *func, const int line)
-{
-	struct cl_object_header *h = cl_object_header(lock->cll_descr.cld_obj);
-	CDEBUG(level, "%s: %p@(%d %p %d %d %d %d %d %lx)(%p/%d/%d) at %s():%d\n",
-	       prefix, lock, atomic_read(&lock->cll_ref),
-	       lock->cll_guarder, lock->cll_depth,
-	       lock->cll_state, lock->cll_error, lock->cll_holds,
-	       lock->cll_users, lock->cll_flags,
-	       env, h->coh_nesting, cl_lock_nr_mutexed(env),
-	       func, line);
-}
-#define cl_lock_trace(level, env, prefix, lock)			 \
-	cl_lock_trace0(level, env, prefix, lock, __func__, __LINE__)
-
-#define RETIP ((unsigned long)__builtin_return_address(0))
-
-#ifdef CONFIG_LOCKDEP
-static struct lock_class_key cl_lock_key;
-
-static void cl_lock_lockdep_init(struct cl_lock *lock)
-{
-	lockdep_set_class_and_name(lock, &cl_lock_key, "EXT");
-}
-
-static void cl_lock_lockdep_acquire(const struct lu_env *env,
-				    struct cl_lock *lock, __u32 enqflags)
-{
-	cl_lock_counters(env, lock)->ctc_nr_locks_acquired++;
-	lock_map_acquire(&lock->dep_map);
-}
-
-static void cl_lock_lockdep_release(const struct lu_env *env,
-				    struct cl_lock *lock)
-{
-	cl_lock_counters(env, lock)->ctc_nr_locks_acquired--;
-	lock_release(&lock->dep_map, 0, RETIP);
-}
-
-#else /* !CONFIG_LOCKDEP */
-
-static void cl_lock_lockdep_init(struct cl_lock *lock)
-{}
-static void cl_lock_lockdep_acquire(const struct lu_env *env,
-				    struct cl_lock *lock, __u32 enqflags)
-{}
-static void cl_lock_lockdep_release(const struct lu_env *env,
-				    struct cl_lock *lock)
-{}
-
-#endif /* !CONFIG_LOCKDEP */
-
-/**
- * Adds lock slice to the compound lock.
- *
- * This is called by cl_object_operations::coo_lock_init() methods to add a
- * per-layer state to the lock. New state is added at the end of
- * cl_lock::cll_layers list, that is, it is at the bottom of the stack.
- *
- * \see cl_req_slice_add(), cl_page_slice_add(), cl_io_slice_add()
- */
-void cl_lock_slice_add(struct cl_lock *lock, struct cl_lock_slice *slice,
-		       struct cl_object *obj,
-		       const struct cl_lock_operations *ops)
-{
-	slice->cls_lock = lock;
-	list_add_tail(&slice->cls_linkage, &lock->cll_layers);
-	slice->cls_obj = obj;
-	slice->cls_ops = ops;
-}
-EXPORT_SYMBOL(cl_lock_slice_add);
-
-/**
- * Returns true iff a lock with the mode \a has provides at least the same
- * guarantees as a lock with the mode \a need.
- */
-int cl_lock_mode_match(enum cl_lock_mode has, enum cl_lock_mode need)
-{
-	LINVRNT(need == CLM_READ || need == CLM_WRITE ||
-		need == CLM_PHANTOM || need == CLM_GROUP);
-	LINVRNT(has == CLM_READ || has == CLM_WRITE ||
-		has == CLM_PHANTOM || has == CLM_GROUP);
-	CLASSERT(CLM_PHANTOM < CLM_READ);
-	CLASSERT(CLM_READ < CLM_WRITE);
-	CLASSERT(CLM_WRITE < CLM_GROUP);
-
-	if (has != CLM_GROUP)
-		return need <= has;
-	else
-		return need == has;
-}
-EXPORT_SYMBOL(cl_lock_mode_match);
-
-/**
- * Returns true iff extent portions of lock descriptions match.
- */
-int cl_lock_ext_match(const struct cl_lock_descr *has,
-		      const struct cl_lock_descr *need)
-{
-	return
-		has->cld_start <= need->cld_start &&
-		has->cld_end >= need->cld_end &&
-		cl_lock_mode_match(has->cld_mode, need->cld_mode) &&
-		(has->cld_mode != CLM_GROUP || has->cld_gid == need->cld_gid);
-}
-EXPORT_SYMBOL(cl_lock_ext_match);
-
-/**
- * Returns true iff a lock with the description \a has provides at least the
- * same guarantees as a lock with the description \a need.
- */
-int cl_lock_descr_match(const struct cl_lock_descr *has,
-			const struct cl_lock_descr *need)
-{
-	return
-		cl_object_same(has->cld_obj, need->cld_obj) &&
-		cl_lock_ext_match(has, need);
-}
-EXPORT_SYMBOL(cl_lock_descr_match);
-
-static void cl_lock_free(const struct lu_env *env, struct cl_lock *lock)
-{
-	struct cl_object *obj = lock->cll_descr.cld_obj;
-
-	LINVRNT(!cl_lock_is_mutexed(lock));
-
-	cl_lock_trace(D_DLMTRACE, env, "free lock", lock);
-	might_sleep();
-	while (!list_empty(&lock->cll_layers)) {
-		struct cl_lock_slice *slice;
-
-		slice = list_entry(lock->cll_layers.next,
-				       struct cl_lock_slice, cls_linkage);
-		list_del_init(lock->cll_layers.next);
-		slice->cls_ops->clo_fini(env, slice);
-	}
-	CS_LOCK_DEC(obj, total);
-	CS_LOCKSTATE_DEC(obj, lock->cll_state);
-	lu_object_ref_del_at(&obj->co_lu, &lock->cll_obj_ref, "cl_lock", lock);
-	cl_object_put(env, obj);
-	lu_ref_fini(&lock->cll_reference);
-	lu_ref_fini(&lock->cll_holders);
-	mutex_destroy(&lock->cll_guard);
-	OBD_SLAB_FREE_PTR(lock, cl_lock_kmem);
-}
-
-/**
- * Releases a reference on a lock.
- *
- * When last reference is released, lock is returned to the cache, unless it
- * is in cl_lock_state::CLS_FREEING state, in which case it is destroyed
- * immediately.
- *
- * \see cl_object_put(), cl_page_put()
- */
-void cl_lock_put(const struct lu_env *env, struct cl_lock *lock)
-{
-	struct cl_object	*obj;
-
-	LINVRNT(cl_lock_invariant(env, lock));
-	obj = lock->cll_descr.cld_obj;
-	LINVRNT(obj != NULL);
-
-	CDEBUG(D_TRACE, "releasing reference: %d %p %lu\n",
-	       atomic_read(&lock->cll_ref), lock, RETIP);
-
-	if (atomic_dec_and_test(&lock->cll_ref)) {
-		if (lock->cll_state == CLS_FREEING) {
-			LASSERT(list_empty(&lock->cll_linkage));
-			cl_lock_free(env, lock);
-		}
-		CS_LOCK_DEC(obj, busy);
-	}
-}
-EXPORT_SYMBOL(cl_lock_put);
-
-/**
- * Acquires an additional reference to a lock.
- *
- * This can be called only by caller already possessing a reference to \a
- * lock.
- *
- * \see cl_object_get(), cl_page_get()
- */
-void cl_lock_get(struct cl_lock *lock)
-{
-	LINVRNT(cl_lock_invariant(NULL, lock));
-	CDEBUG(D_TRACE, "acquiring reference: %d %p %lu\n",
-	       atomic_read(&lock->cll_ref), lock, RETIP);
-	atomic_inc(&lock->cll_ref);
-}
-EXPORT_SYMBOL(cl_lock_get);
-
-/**
- * Acquires a reference to a lock.
- *
- * This is much like cl_lock_get(), except that this function can be used to
- * acquire initial reference to the cached lock. Caller has to deal with all
- * possible races. Use with care!
- *
- * \see cl_page_get_trust()
- */
-void cl_lock_get_trust(struct cl_lock *lock)
-{
-	CDEBUG(D_TRACE, "acquiring trusted reference: %d %p %lu\n",
-	       atomic_read(&lock->cll_ref), lock, RETIP);
-	if (atomic_inc_return(&lock->cll_ref) == 1)
-		CS_LOCK_INC(lock->cll_descr.cld_obj, busy);
-}
-EXPORT_SYMBOL(cl_lock_get_trust);
-
-/**
- * Helper function destroying the lock that wasn't completely initialized.
- *
- * Other threads can acquire references to the top-lock through its
- * sub-locks. Hence, it cannot be cl_lock_free()-ed immediately.
- */
-static void cl_lock_finish(const struct lu_env *env, struct cl_lock *lock)
-{
-	cl_lock_mutex_get(env, lock);
-	cl_lock_cancel(env, lock);
-	cl_lock_delete(env, lock);
-	cl_lock_mutex_put(env, lock);
-	cl_lock_put(env, lock);
-}
-
-static struct cl_lock *cl_lock_alloc(const struct lu_env *env,
-				     struct cl_object *obj,
-				     const struct cl_io *io,
-				     const struct cl_lock_descr *descr)
-{
-	struct cl_lock	  *lock;
-	struct lu_object_header *head;
-
-	OBD_SLAB_ALLOC_PTR_GFP(lock, cl_lock_kmem, GFP_NOFS);
-	if (lock != NULL) {
-		atomic_set(&lock->cll_ref, 1);
-		lock->cll_descr = *descr;
-		lock->cll_state = CLS_NEW;
-		cl_object_get(obj);
-		lu_object_ref_add_at(&obj->co_lu, &lock->cll_obj_ref, "cl_lock",
-				     lock);
-		INIT_LIST_HEAD(&lock->cll_layers);
-		INIT_LIST_HEAD(&lock->cll_linkage);
-		INIT_LIST_HEAD(&lock->cll_inclosure);
-		lu_ref_init(&lock->cll_reference);
-		lu_ref_init(&lock->cll_holders);
-		mutex_init(&lock->cll_guard);
-		lockdep_set_class(&lock->cll_guard, &cl_lock_guard_class);
-		init_waitqueue_head(&lock->cll_wq);
-		head = obj->co_lu.lo_header;
-		CS_LOCKSTATE_INC(obj, CLS_NEW);
-		CS_LOCK_INC(obj, total);
-		CS_LOCK_INC(obj, create);
-		cl_lock_lockdep_init(lock);
-		list_for_each_entry(obj, &head->loh_layers,
-					co_lu.lo_linkage) {
-			int err;
-
-			err = obj->co_ops->coo_lock_init(env, obj, lock, io);
-			if (err != 0) {
-				cl_lock_finish(env, lock);
-				lock = ERR_PTR(err);
-				break;
-			}
-		}
-	} else
-		lock = ERR_PTR(-ENOMEM);
-	return lock;
-}
-
-/**
- * Transfer the lock into INTRANSIT state and return the original state.
- *
- * \pre  state: CLS_CACHED, CLS_HELD or CLS_ENQUEUED
- * \post state: CLS_INTRANSIT
- * \see CLS_INTRANSIT
- */
-enum cl_lock_state cl_lock_intransit(const struct lu_env *env,
-				     struct cl_lock *lock)
-{
-	enum cl_lock_state state = lock->cll_state;
-
-	LASSERT(cl_lock_is_mutexed(lock));
-	LASSERT(state != CLS_INTRANSIT);
-	LASSERTF(state >= CLS_ENQUEUED && state <= CLS_CACHED,
-		 "Malformed lock state %d.\n", state);
-
-	cl_lock_state_set(env, lock, CLS_INTRANSIT);
-	lock->cll_intransit_owner = current;
-	cl_lock_hold_add(env, lock, "intransit", current);
-	return state;
-}
-EXPORT_SYMBOL(cl_lock_intransit);
-
-/**
- *  Exit the intransit state and restore the lock state to the original state
- */
-void cl_lock_extransit(const struct lu_env *env, struct cl_lock *lock,
-		       enum cl_lock_state state)
-{
-	LASSERT(cl_lock_is_mutexed(lock));
-	LASSERT(lock->cll_state == CLS_INTRANSIT);
-	LASSERT(state != CLS_INTRANSIT);
-	LASSERT(lock->cll_intransit_owner == current);
-
-	lock->cll_intransit_owner = NULL;
-	cl_lock_state_set(env, lock, state);
-	cl_lock_unhold(env, lock, "intransit", current);
-}
-EXPORT_SYMBOL(cl_lock_extransit);
-
-/**
- * Checking whether the lock is intransit state
- */
-int cl_lock_is_intransit(struct cl_lock *lock)
-{
-	LASSERT(cl_lock_is_mutexed(lock));
-	return lock->cll_state == CLS_INTRANSIT &&
-	       lock->cll_intransit_owner != current;
-}
-EXPORT_SYMBOL(cl_lock_is_intransit);
-/**
- * Returns true iff lock is "suitable" for given io. E.g., locks acquired by
- * truncate and O_APPEND cannot be reused for read/non-append-write, as they
- * cover multiple stripes and can trigger cascading timeouts.
- */
-static int cl_lock_fits_into(const struct lu_env *env,
-			     const struct cl_lock *lock,
-			     const struct cl_lock_descr *need,
-			     const struct cl_io *io)
-{
-	const struct cl_lock_slice *slice;
-
-	LINVRNT(cl_lock_invariant_trusted(env, lock));
-	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_fits_into != NULL &&
-		    !slice->cls_ops->clo_fits_into(env, slice, need, io))
-			return 0;
-	}
-	return 1;
-}
-
-static struct cl_lock *cl_lock_lookup(const struct lu_env *env,
-				      struct cl_object *obj,
-				      const struct cl_io *io,
-				      const struct cl_lock_descr *need)
-{
-	struct cl_lock	  *lock;
-	struct cl_object_header *head;
-
-	head = cl_object_header(obj);
-	assert_spin_locked(&head->coh_lock_guard);
-	CS_LOCK_INC(obj, lookup);
-	list_for_each_entry(lock, &head->coh_locks, cll_linkage) {
-		int matched;
-
-		matched = cl_lock_ext_match(&lock->cll_descr, need) &&
-			  lock->cll_state < CLS_FREEING &&
-			  lock->cll_error == 0 &&
-			  !(lock->cll_flags & CLF_CANCELLED) &&
-			  cl_lock_fits_into(env, lock, need, io);
-		CDEBUG(D_DLMTRACE, "has: "DDESCR"(%d) need: "DDESCR": %d\n",
-		       PDESCR(&lock->cll_descr), lock->cll_state, PDESCR(need),
-		       matched);
-		if (matched) {
-			cl_lock_get_trust(lock);
-			CS_LOCK_INC(obj, hit);
-			return lock;
-		}
-	}
-	return NULL;
-}
-
-/**
- * Returns a lock matching description \a need.
- *
- * This is the main entry point into the cl_lock caching interface. First, a
- * cache (implemented as a per-object linked list) is consulted. If lock is
- * found there, it is returned immediately. Otherwise new lock is allocated
- * and returned. In any case, additional reference to lock is acquired.
- *
- * \see cl_object_find(), cl_page_find()
- */
-static struct cl_lock *cl_lock_find(const struct lu_env *env,
-				    const struct cl_io *io,
-				    const struct cl_lock_descr *need)
-{
-	struct cl_object_header *head;
-	struct cl_object	*obj;
-	struct cl_lock	  *lock;
-
-	obj  = need->cld_obj;
-	head = cl_object_header(obj);
-
-	spin_lock(&head->coh_lock_guard);
-	lock = cl_lock_lookup(env, obj, io, need);
-	spin_unlock(&head->coh_lock_guard);
-
-	if (lock == NULL) {
-		lock = cl_lock_alloc(env, obj, io, need);
-		if (!IS_ERR(lock)) {
-			struct cl_lock *ghost;
-
-			spin_lock(&head->coh_lock_guard);
-			ghost = cl_lock_lookup(env, obj, io, need);
-			if (ghost == NULL) {
-				cl_lock_get_trust(lock);
-				list_add_tail(&lock->cll_linkage,
-						  &head->coh_locks);
-				spin_unlock(&head->coh_lock_guard);
-				CS_LOCK_INC(obj, busy);
-			} else {
-				spin_unlock(&head->coh_lock_guard);
-				/*
-				 * Other threads can acquire references to the
-				 * top-lock through its sub-locks. Hence, it
-				 * cannot be cl_lock_free()-ed immediately.
-				 */
-				cl_lock_finish(env, lock);
-				lock = ghost;
-			}
-		}
-	}
-	return lock;
-}
-
-/**
- * Returns existing lock matching given description. This is similar to
- * cl_lock_find() except that no new lock is created, and returned lock is
- * guaranteed to be in enum cl_lock_state::CLS_HELD state.
- */
-struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io,
-			     const struct cl_lock_descr *need,
-			     const char *scope, const void *source)
-{
-	struct cl_object_header *head;
-	struct cl_object	*obj;
-	struct cl_lock	  *lock;
-
-	obj  = need->cld_obj;
-	head = cl_object_header(obj);
-
-	do {
-		spin_lock(&head->coh_lock_guard);
-		lock = cl_lock_lookup(env, obj, io, need);
-		spin_unlock(&head->coh_lock_guard);
-		if (lock == NULL)
-			return NULL;
-
-		cl_lock_mutex_get(env, lock);
-		if (lock->cll_state == CLS_INTRANSIT)
-			/* Don't care return value. */
-			cl_lock_state_wait(env, lock);
-		if (lock->cll_state == CLS_FREEING) {
-			cl_lock_mutex_put(env, lock);
-			cl_lock_put(env, lock);
-			lock = NULL;
-		}
-	} while (lock == NULL);
-
-	cl_lock_hold_add(env, lock, scope, source);
-	cl_lock_user_add(env, lock);
-	if (lock->cll_state == CLS_CACHED)
-		cl_use_try(env, lock, 1);
-	if (lock->cll_state == CLS_HELD) {
-		cl_lock_mutex_put(env, lock);
-		cl_lock_lockdep_acquire(env, lock, 0);
-		cl_lock_put(env, lock);
-	} else {
-		cl_unuse_try(env, lock);
-		cl_lock_unhold(env, lock, scope, source);
-		cl_lock_mutex_put(env, lock);
-		cl_lock_put(env, lock);
-		lock = NULL;
-	}
-
-	return lock;
-}
-EXPORT_SYMBOL(cl_lock_peek);
-
-/**
- * Returns a slice within a lock, corresponding to the given layer in the
- * device stack.
- *
- * \see cl_page_at()
- */
-const struct cl_lock_slice *cl_lock_at(const struct cl_lock *lock,
-				       const struct lu_device_type *dtype)
-{
-	const struct cl_lock_slice *slice;
-
-	LINVRNT(cl_lock_invariant_trusted(NULL, lock));
-
-	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_obj->co_lu.lo_dev->ld_type == dtype)
-			return slice;
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(cl_lock_at);
-
-static void cl_lock_mutex_tail(const struct lu_env *env, struct cl_lock *lock)
-{
-	struct cl_thread_counters *counters;
-
-	counters = cl_lock_counters(env, lock);
-	lock->cll_depth++;
-	counters->ctc_nr_locks_locked++;
-	lu_ref_add(&counters->ctc_locks_locked, "cll_guard", lock);
-	cl_lock_trace(D_TRACE, env, "got mutex", lock);
-}
-
-/**
- * Locks cl_lock object.
- *
- * This is used to manipulate cl_lock fields, and to serialize state
- * transitions in the lock state machine.
- *
- * \post cl_lock_is_mutexed(lock)
- *
- * \see cl_lock_mutex_put()
- */
-void cl_lock_mutex_get(const struct lu_env *env, struct cl_lock *lock)
-{
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	if (lock->cll_guarder == current) {
-		LINVRNT(cl_lock_is_mutexed(lock));
-		LINVRNT(lock->cll_depth > 0);
-	} else {
-		struct cl_object_header *hdr;
-		struct cl_thread_info   *info;
-		int i;
-
-		LINVRNT(lock->cll_guarder != current);
-		hdr = cl_object_header(lock->cll_descr.cld_obj);
-		/*
-		 * Check that mutices are taken in the bottom-to-top order.
-		 */
-		info = cl_env_info(env);
-		for (i = 0; i < hdr->coh_nesting; ++i)
-			LASSERT(info->clt_counters[i].ctc_nr_locks_locked == 0);
-		mutex_lock_nested(&lock->cll_guard, hdr->coh_nesting);
-		lock->cll_guarder = current;
-		LINVRNT(lock->cll_depth == 0);
-	}
-	cl_lock_mutex_tail(env, lock);
-}
-EXPORT_SYMBOL(cl_lock_mutex_get);
-
-/**
- * Try-locks cl_lock object.
- *
- * \retval 0 \a lock was successfully locked
- *
- * \retval -EBUSY \a lock cannot be locked right now
- *
- * \post ergo(result == 0, cl_lock_is_mutexed(lock))
- *
- * \see cl_lock_mutex_get()
- */
-int cl_lock_mutex_try(const struct lu_env *env, struct cl_lock *lock)
-{
-	int result;
-
-	LINVRNT(cl_lock_invariant_trusted(env, lock));
-
-	result = 0;
-	if (lock->cll_guarder == current) {
-		LINVRNT(lock->cll_depth > 0);
-		cl_lock_mutex_tail(env, lock);
-	} else if (mutex_trylock(&lock->cll_guard)) {
-		LINVRNT(lock->cll_depth == 0);
-		lock->cll_guarder = current;
-		cl_lock_mutex_tail(env, lock);
-	} else
-		result = -EBUSY;
-	return result;
-}
-EXPORT_SYMBOL(cl_lock_mutex_try);
-
-/**
- {* Unlocks cl_lock object.
- *
- * \pre cl_lock_is_mutexed(lock)
- *
- * \see cl_lock_mutex_get()
- */
-void cl_lock_mutex_put(const struct lu_env *env, struct cl_lock *lock)
-{
-	struct cl_thread_counters *counters;
-
-	LINVRNT(cl_lock_invariant(env, lock));
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(lock->cll_guarder == current);
-	LINVRNT(lock->cll_depth > 0);
-
-	counters = cl_lock_counters(env, lock);
-	LINVRNT(counters->ctc_nr_locks_locked > 0);
-
-	cl_lock_trace(D_TRACE, env, "put mutex", lock);
-	lu_ref_del(&counters->ctc_locks_locked, "cll_guard", lock);
-	counters->ctc_nr_locks_locked--;
-	if (--lock->cll_depth == 0) {
-		lock->cll_guarder = NULL;
-		mutex_unlock(&lock->cll_guard);
-	}
-}
-EXPORT_SYMBOL(cl_lock_mutex_put);
-
-/**
- * Returns true iff lock's mutex is owned by the current thread.
- */
-int cl_lock_is_mutexed(struct cl_lock *lock)
-{
-	return lock->cll_guarder == current;
-}
-EXPORT_SYMBOL(cl_lock_is_mutexed);
-
-/**
- * Returns number of cl_lock mutices held by the current thread (environment).
- */
-int cl_lock_nr_mutexed(const struct lu_env *env)
-{
-	struct cl_thread_info *info;
-	int i;
-	int locked;
-
-	/*
-	 * NOTE: if summation across all nesting levels (currently 2) proves
-	 *       too expensive, a summary counter can be added to
-	 *       struct cl_thread_info.
-	 */
-	info = cl_env_info(env);
-	for (i = 0, locked = 0; i < ARRAY_SIZE(info->clt_counters); ++i)
-		locked += info->clt_counters[i].ctc_nr_locks_locked;
-	return locked;
-}
-EXPORT_SYMBOL(cl_lock_nr_mutexed);
-
-static void cl_lock_cancel0(const struct lu_env *env, struct cl_lock *lock)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-	if (!(lock->cll_flags & CLF_CANCELLED)) {
-		const struct cl_lock_slice *slice;
-
-		lock->cll_flags |= CLF_CANCELLED;
-		list_for_each_entry_reverse(slice, &lock->cll_layers,
-						cls_linkage) {
-			if (slice->cls_ops->clo_cancel != NULL)
-				slice->cls_ops->clo_cancel(env, slice);
-		}
-	}
-}
-
-static void cl_lock_delete0(const struct lu_env *env, struct cl_lock *lock)
-{
-	struct cl_object_header    *head;
-	const struct cl_lock_slice *slice;
-
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	if (lock->cll_state < CLS_FREEING) {
-		bool in_cache;
-
-		LASSERT(lock->cll_state != CLS_INTRANSIT);
-		cl_lock_state_set(env, lock, CLS_FREEING);
-
-		head = cl_object_header(lock->cll_descr.cld_obj);
-
-		spin_lock(&head->coh_lock_guard);
-		in_cache = !list_empty(&lock->cll_linkage);
-		if (in_cache)
-			list_del_init(&lock->cll_linkage);
-		spin_unlock(&head->coh_lock_guard);
-
-		if (in_cache) /* coh_locks cache holds a refcount. */
-			cl_lock_put(env, lock);
-
-		/*
-		 * From now on, no new references to this lock can be acquired
-		 * by cl_lock_lookup().
-		 */
-		list_for_each_entry_reverse(slice, &lock->cll_layers,
-						cls_linkage) {
-			if (slice->cls_ops->clo_delete != NULL)
-				slice->cls_ops->clo_delete(env, slice);
-		}
-		/*
-		 * From now on, no new references to this lock can be acquired
-		 * by layer-specific means (like a pointer from struct
-		 * ldlm_lock in osc, or a pointer from top-lock to sub-lock in
-		 * lov).
-		 *
-		 * Lock will be finally freed in cl_lock_put() when last of
-		 * existing references goes away.
-		 */
-	}
-}
-
-/**
- * Mod(ifie)s cl_lock::cll_holds counter for a given lock. Also, for a
- * top-lock (nesting == 0) accounts for this modification in the per-thread
- * debugging counters. Sub-lock holds can be released by a thread different
- * from one that acquired it.
- */
-static void cl_lock_hold_mod(const struct lu_env *env, struct cl_lock *lock,
-			     int delta)
-{
-	struct cl_thread_counters *counters;
-	enum clt_nesting_level     nesting;
-
-	lock->cll_holds += delta;
-	nesting = cl_lock_nesting(lock);
-	if (nesting == CNL_TOP) {
-		counters = &cl_env_info(env)->clt_counters[CNL_TOP];
-		counters->ctc_nr_held += delta;
-		LASSERT(counters->ctc_nr_held >= 0);
-	}
-}
-
-/**
- * Mod(ifie)s cl_lock::cll_users counter for a given lock. See
- * cl_lock_hold_mod() for the explanation of the debugging code.
- */
-static void cl_lock_used_mod(const struct lu_env *env, struct cl_lock *lock,
-			     int delta)
-{
-	struct cl_thread_counters *counters;
-	enum clt_nesting_level     nesting;
-
-	lock->cll_users += delta;
-	nesting = cl_lock_nesting(lock);
-	if (nesting == CNL_TOP) {
-		counters = &cl_env_info(env)->clt_counters[CNL_TOP];
-		counters->ctc_nr_used += delta;
-		LASSERT(counters->ctc_nr_used >= 0);
-	}
-}
-
-void cl_lock_hold_release(const struct lu_env *env, struct cl_lock *lock,
-			  const char *scope, const void *source)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-	LASSERT(lock->cll_holds > 0);
-
-	cl_lock_trace(D_DLMTRACE, env, "hold release lock", lock);
-	lu_ref_del(&lock->cll_holders, scope, source);
-	cl_lock_hold_mod(env, lock, -1);
-	if (lock->cll_holds == 0) {
-		CL_LOCK_ASSERT(lock->cll_state != CLS_HELD, env, lock);
-		if (lock->cll_descr.cld_mode == CLM_PHANTOM ||
-		    lock->cll_descr.cld_mode == CLM_GROUP ||
-		    lock->cll_state != CLS_CACHED)
-			/*
-			 * If lock is still phantom or grouplock when user is
-			 * done with it---destroy the lock.
-			 */
-			lock->cll_flags |= CLF_CANCELPEND|CLF_DOOMED;
-		if (lock->cll_flags & CLF_CANCELPEND) {
-			lock->cll_flags &= ~CLF_CANCELPEND;
-			cl_lock_cancel0(env, lock);
-		}
-		if (lock->cll_flags & CLF_DOOMED) {
-			/* no longer doomed: it's dead... Jim. */
-			lock->cll_flags &= ~CLF_DOOMED;
-			cl_lock_delete0(env, lock);
-		}
-	}
-}
-EXPORT_SYMBOL(cl_lock_hold_release);
-
-/**
- * Waits until lock state is changed.
- *
- * This function is called with cl_lock mutex locked, atomically releases
- * mutex and goes to sleep, waiting for a lock state change (signaled by
- * cl_lock_signal()), and re-acquires the mutex before return.
- *
- * This function is used to wait until lock state machine makes some progress
- * and to emulate synchronous operations on top of asynchronous lock
- * interface.
- *
- * \retval -EINTR wait was interrupted
- *
- * \retval 0 wait wasn't interrupted
- *
- * \pre cl_lock_is_mutexed(lock)
- *
- * \see cl_lock_signal()
- */
-int cl_lock_state_wait(const struct lu_env *env, struct cl_lock *lock)
-{
-	wait_queue_t waiter;
-	sigset_t blocked;
-	int result;
-
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-	LASSERT(lock->cll_depth == 1);
-	LASSERT(lock->cll_state != CLS_FREEING); /* too late to wait */
-
-	cl_lock_trace(D_DLMTRACE, env, "state wait lock", lock);
-	result = lock->cll_error;
-	if (result == 0) {
-		/* To avoid being interrupted by the 'non-fatal' signals
-		 * (SIGCHLD, for instance), we'd block them temporarily.
-		 * LU-305 */
-		blocked = cfs_block_sigsinv(LUSTRE_FATAL_SIGS);
-
-		init_waitqueue_entry(&waiter, current);
-		add_wait_queue(&lock->cll_wq, &waiter);
-		set_current_state(TASK_INTERRUPTIBLE);
-		cl_lock_mutex_put(env, lock);
-
-		LASSERT(cl_lock_nr_mutexed(env) == 0);
-
-		/* Returning ERESTARTSYS instead of EINTR so syscalls
-		 * can be restarted if signals are pending here */
-		result = -ERESTARTSYS;
-		if (likely(!OBD_FAIL_CHECK(OBD_FAIL_LOCK_STATE_WAIT_INTR))) {
-			schedule();
-			if (!cfs_signal_pending())
-				result = 0;
-		}
-
-		cl_lock_mutex_get(env, lock);
-		set_current_state(TASK_RUNNING);
-		remove_wait_queue(&lock->cll_wq, &waiter);
-
-		/* Restore old blocked signals */
-		cfs_restore_sigs(blocked);
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_lock_state_wait);
-
-static void cl_lock_state_signal(const struct lu_env *env, struct cl_lock *lock,
-				 enum cl_lock_state state)
-{
-	const struct cl_lock_slice *slice;
-
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	list_for_each_entry(slice, &lock->cll_layers, cls_linkage)
-		if (slice->cls_ops->clo_state != NULL)
-			slice->cls_ops->clo_state(env, slice, state);
-	wake_up_all(&lock->cll_wq);
-}
-
-/**
- * Notifies waiters that lock state changed.
- *
- * Wakes up all waiters sleeping in cl_lock_state_wait(), also notifies all
- * layers about state change by calling cl_lock_operations::clo_state()
- * top-to-bottom.
- */
-void cl_lock_signal(const struct lu_env *env, struct cl_lock *lock)
-{
-	cl_lock_trace(D_DLMTRACE, env, "state signal lock", lock);
-	cl_lock_state_signal(env, lock, lock->cll_state);
-}
-EXPORT_SYMBOL(cl_lock_signal);
-
-/**
- * Changes lock state.
- *
- * This function is invoked to notify layers that lock state changed, possible
- * as a result of an asynchronous event such as call-back reception.
- *
- * \post lock->cll_state == state
- *
- * \see cl_lock_operations::clo_state()
- */
-void cl_lock_state_set(const struct lu_env *env, struct cl_lock *lock,
-		       enum cl_lock_state state)
-{
-	LASSERT(lock->cll_state <= state ||
-		(lock->cll_state == CLS_CACHED &&
-		 (state == CLS_HELD || /* lock found in cache */
-		  state == CLS_NEW  ||   /* sub-lock canceled */
-		  state == CLS_INTRANSIT)) ||
-		/* lock is in transit state */
-		lock->cll_state == CLS_INTRANSIT);
-
-	if (lock->cll_state != state) {
-		CS_LOCKSTATE_DEC(lock->cll_descr.cld_obj, lock->cll_state);
-		CS_LOCKSTATE_INC(lock->cll_descr.cld_obj, state);
-
-		cl_lock_state_signal(env, lock, state);
-		lock->cll_state = state;
-	}
-}
-EXPORT_SYMBOL(cl_lock_state_set);
-
-static int cl_unuse_try_internal(const struct lu_env *env, struct cl_lock *lock)
-{
-	const struct cl_lock_slice *slice;
-	int result;
-
-	do {
-		result = 0;
-
-		LINVRNT(cl_lock_is_mutexed(lock));
-		LINVRNT(cl_lock_invariant(env, lock));
-		LASSERT(lock->cll_state == CLS_INTRANSIT);
-
-		result = -ENOSYS;
-		list_for_each_entry_reverse(slice, &lock->cll_layers,
-						cls_linkage) {
-			if (slice->cls_ops->clo_unuse != NULL) {
-				result = slice->cls_ops->clo_unuse(env, slice);
-				if (result != 0)
-					break;
-			}
-		}
-		LASSERT(result != -ENOSYS);
-	} while (result == CLO_REPEAT);
-
-	return result;
-}
-
-/**
- * Yanks lock from the cache (cl_lock_state::CLS_CACHED state) by calling
- * cl_lock_operations::clo_use() top-to-bottom to notify layers.
- * @atomic = 1, it must unuse the lock to recovery the lock to keep the
- *  use process atomic
- */
-int cl_use_try(const struct lu_env *env, struct cl_lock *lock, int atomic)
-{
-	const struct cl_lock_slice *slice;
-	int result;
-	enum cl_lock_state state;
-
-	cl_lock_trace(D_DLMTRACE, env, "use lock", lock);
-
-	LASSERT(lock->cll_state == CLS_CACHED);
-	if (lock->cll_error)
-		return lock->cll_error;
-
-	result = -ENOSYS;
-	state = cl_lock_intransit(env, lock);
-	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_use != NULL) {
-			result = slice->cls_ops->clo_use(env, slice);
-			if (result != 0)
-				break;
-		}
-	}
-	LASSERT(result != -ENOSYS);
-
-	LASSERTF(lock->cll_state == CLS_INTRANSIT, "Wrong state %d.\n",
-		 lock->cll_state);
-
-	if (result == 0) {
-		state = CLS_HELD;
-	} else {
-		if (result == -ESTALE) {
-			/*
-			 * ESTALE means sublock being cancelled
-			 * at this time, and set lock state to
-			 * be NEW here and ask the caller to repeat.
-			 */
-			state = CLS_NEW;
-			result = CLO_REPEAT;
-		}
-
-		/* @atomic means back-off-on-failure. */
-		if (atomic) {
-			int rc;
-			rc = cl_unuse_try_internal(env, lock);
-			/* Vet the results. */
-			if (rc < 0 && result > 0)
-				result = rc;
-		}
-
-	}
-	cl_lock_extransit(env, lock, state);
-	return result;
-}
-EXPORT_SYMBOL(cl_use_try);
-
-/**
- * Helper for cl_enqueue_try() that calls ->clo_enqueue() across all layers
- * top-to-bottom.
- */
-static int cl_enqueue_kick(const struct lu_env *env,
-			   struct cl_lock *lock,
-			   struct cl_io *io, __u32 flags)
-{
-	int result;
-	const struct cl_lock_slice *slice;
-
-	result = -ENOSYS;
-	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_enqueue != NULL) {
-			result = slice->cls_ops->clo_enqueue(env,
-							     slice, io, flags);
-			if (result != 0)
-				break;
-		}
-	}
-	LASSERT(result != -ENOSYS);
-	return result;
-}
-
-/**
- * Tries to enqueue a lock.
- *
- * This function is called repeatedly by cl_enqueue() until either lock is
- * enqueued, or error occurs. This function does not block waiting for
- * networking communication to complete.
- *
- * \post ergo(result == 0, lock->cll_state == CLS_ENQUEUED ||
- *			 lock->cll_state == CLS_HELD)
- *
- * \see cl_enqueue() cl_lock_operations::clo_enqueue()
- * \see cl_lock_state::CLS_ENQUEUED
- */
-int cl_enqueue_try(const struct lu_env *env, struct cl_lock *lock,
-		   struct cl_io *io, __u32 flags)
-{
-	int result;
-
-	cl_lock_trace(D_DLMTRACE, env, "enqueue lock", lock);
-	do {
-		LINVRNT(cl_lock_is_mutexed(lock));
-
-		result = lock->cll_error;
-		if (result != 0)
-			break;
-
-		switch (lock->cll_state) {
-		case CLS_NEW:
-			cl_lock_state_set(env, lock, CLS_QUEUING);
-			/* fall-through */
-		case CLS_QUEUING:
-			/* kick layers. */
-			result = cl_enqueue_kick(env, lock, io, flags);
-			/* For AGL case, the cl_lock::cll_state may
-			 * become CLS_HELD already. */
-			if (result == 0 && lock->cll_state == CLS_QUEUING)
-				cl_lock_state_set(env, lock, CLS_ENQUEUED);
-			break;
-		case CLS_INTRANSIT:
-			LASSERT(cl_lock_is_intransit(lock));
-			result = CLO_WAIT;
-			break;
-		case CLS_CACHED:
-			/* yank lock from the cache. */
-			result = cl_use_try(env, lock, 0);
-			break;
-		case CLS_ENQUEUED:
-		case CLS_HELD:
-			result = 0;
-			break;
-		default:
-		case CLS_FREEING:
-			/*
-			 * impossible, only held locks with increased
-			 * ->cll_holds can be enqueued, and they cannot be
-			 * freed.
-			 */
-			LBUG();
-		}
-	} while (result == CLO_REPEAT);
-	return result;
-}
-EXPORT_SYMBOL(cl_enqueue_try);
-
-/**
- * Cancel the conflicting lock found during previous enqueue.
- *
- * \retval 0 conflicting lock has been canceled.
- * \retval -ve error code.
- */
-int cl_lock_enqueue_wait(const struct lu_env *env,
-			 struct cl_lock *lock,
-			 int keep_mutex)
-{
-	struct cl_lock  *conflict;
-	int	      rc = 0;
-
-	LASSERT(cl_lock_is_mutexed(lock));
-	LASSERT(lock->cll_state == CLS_QUEUING);
-	LASSERT(lock->cll_conflict != NULL);
-
-	conflict = lock->cll_conflict;
-	lock->cll_conflict = NULL;
-
-	cl_lock_mutex_put(env, lock);
-	LASSERT(cl_lock_nr_mutexed(env) == 0);
-
-	cl_lock_mutex_get(env, conflict);
-	cl_lock_trace(D_DLMTRACE, env, "enqueue wait", conflict);
-	cl_lock_cancel(env, conflict);
-	cl_lock_delete(env, conflict);
-
-	while (conflict->cll_state != CLS_FREEING) {
-		rc = cl_lock_state_wait(env, conflict);
-		if (rc != 0)
-			break;
-	}
-	cl_lock_mutex_put(env, conflict);
-	lu_ref_del(&conflict->cll_reference, "cancel-wait", lock);
-	cl_lock_put(env, conflict);
-
-	if (keep_mutex)
-		cl_lock_mutex_get(env, lock);
-
-	LASSERT(rc <= 0);
-	return rc;
-}
-EXPORT_SYMBOL(cl_lock_enqueue_wait);
-
-static int cl_enqueue_locked(const struct lu_env *env, struct cl_lock *lock,
-			     struct cl_io *io, __u32 enqflags)
-{
-	int result;
-
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-	LASSERT(lock->cll_holds > 0);
-
-	cl_lock_user_add(env, lock);
-	do {
-		result = cl_enqueue_try(env, lock, io, enqflags);
-		if (result == CLO_WAIT) {
-			if (lock->cll_conflict != NULL)
-				result = cl_lock_enqueue_wait(env, lock, 1);
-			else
-				result = cl_lock_state_wait(env, lock);
-			if (result == 0)
-				continue;
-		}
-		break;
-	} while (1);
-	if (result != 0)
-		cl_unuse_try(env, lock);
-	LASSERT(ergo(result == 0 && !(enqflags & CEF_AGL),
-		     lock->cll_state == CLS_ENQUEUED ||
-		     lock->cll_state == CLS_HELD));
-	return result;
-}
-
-/**
- * Enqueues a lock.
- *
- * \pre current thread or io owns a hold on lock.
- *
- * \post ergo(result == 0, lock->users increased)
- * \post ergo(result == 0, lock->cll_state == CLS_ENQUEUED ||
- *			 lock->cll_state == CLS_HELD)
- */
-int cl_enqueue(const struct lu_env *env, struct cl_lock *lock,
-	       struct cl_io *io, __u32 enqflags)
-{
-	int result;
-
-	cl_lock_lockdep_acquire(env, lock, enqflags);
-	cl_lock_mutex_get(env, lock);
-	result = cl_enqueue_locked(env, lock, io, enqflags);
-	cl_lock_mutex_put(env, lock);
-	if (result != 0)
-		cl_lock_lockdep_release(env, lock);
-	LASSERT(ergo(result == 0, lock->cll_state == CLS_ENQUEUED ||
-		     lock->cll_state == CLS_HELD));
-	return result;
-}
-EXPORT_SYMBOL(cl_enqueue);
-
-/**
- * Tries to unlock a lock.
- *
- * This function is called to release underlying resource:
- * 1. for top lock, the resource is sublocks it held;
- * 2. for sublock, the resource is the reference to dlmlock.
- *
- * cl_unuse_try is a one-shot operation, so it must NOT return CLO_WAIT.
- *
- * \see cl_unuse() cl_lock_operations::clo_unuse()
- * \see cl_lock_state::CLS_CACHED
- */
-int cl_unuse_try(const struct lu_env *env, struct cl_lock *lock)
-{
-	int			 result;
-	enum cl_lock_state	  state = CLS_NEW;
-
-	cl_lock_trace(D_DLMTRACE, env, "unuse lock", lock);
-
-	if (lock->cll_users > 1) {
-		cl_lock_user_del(env, lock);
-		return 0;
-	}
-
-	/* Only if the lock is in CLS_HELD or CLS_ENQUEUED state, it can hold
-	 * underlying resources. */
-	if (!(lock->cll_state == CLS_HELD || lock->cll_state == CLS_ENQUEUED)) {
-		cl_lock_user_del(env, lock);
-		return 0;
-	}
-
-	/*
-	 * New lock users (->cll_users) are not protecting unlocking
-	 * from proceeding. From this point, lock eventually reaches
-	 * CLS_CACHED, is reinitialized to CLS_NEW or fails into
-	 * CLS_FREEING.
-	 */
-	state = cl_lock_intransit(env, lock);
-
-	result = cl_unuse_try_internal(env, lock);
-	LASSERT(lock->cll_state == CLS_INTRANSIT);
-	LASSERT(result != CLO_WAIT);
-	cl_lock_user_del(env, lock);
-	if (result == 0 || result == -ESTALE) {
-		/*
-		 * Return lock back to the cache. This is the only
-		 * place where lock is moved into CLS_CACHED state.
-		 *
-		 * If one of ->clo_unuse() methods returned -ESTALE, lock
-		 * cannot be placed into cache and has to be
-		 * re-initialized. This happens e.g., when a sub-lock was
-		 * canceled while unlocking was in progress.
-		 */
-		if (state == CLS_HELD && result == 0)
-			state = CLS_CACHED;
-		else
-			state = CLS_NEW;
-		cl_lock_extransit(env, lock, state);
-
-		/*
-		 * Hide -ESTALE error.
-		 * If the lock is a glimpse lock, and it has multiple
-		 * stripes. Assuming that one of its sublock returned -ENAVAIL,
-		 * and other sublocks are matched write locks. In this case,
-		 * we can't set this lock to error because otherwise some of
-		 * its sublocks may not be canceled. This causes some dirty
-		 * pages won't be written to OSTs. -jay
-		 */
-		result = 0;
-	} else {
-		CERROR("result = %d, this is unlikely!\n", result);
-		state = CLS_NEW;
-		cl_lock_extransit(env, lock, state);
-	}
-	return result ?: lock->cll_error;
-}
-EXPORT_SYMBOL(cl_unuse_try);
-
-static void cl_unuse_locked(const struct lu_env *env, struct cl_lock *lock)
-{
-	int result;
-
-	result = cl_unuse_try(env, lock);
-	if (result)
-		CL_LOCK_DEBUG(D_ERROR, env, lock, "unuse return %d\n", result);
-}
-
-/**
- * Unlocks a lock.
- */
-void cl_unuse(const struct lu_env *env, struct cl_lock *lock)
-{
-	cl_lock_mutex_get(env, lock);
-	cl_unuse_locked(env, lock);
-	cl_lock_mutex_put(env, lock);
-	cl_lock_lockdep_release(env, lock);
-}
-EXPORT_SYMBOL(cl_unuse);
-
-/**
- * Tries to wait for a lock.
- *
- * This function is called repeatedly by cl_wait() until either lock is
- * granted, or error occurs. This function does not block waiting for network
- * communication to complete.
- *
- * \see cl_wait() cl_lock_operations::clo_wait()
- * \see cl_lock_state::CLS_HELD
- */
-int cl_wait_try(const struct lu_env *env, struct cl_lock *lock)
-{
-	const struct cl_lock_slice *slice;
-	int			 result;
-
-	cl_lock_trace(D_DLMTRACE, env, "wait lock try", lock);
-	do {
-		LINVRNT(cl_lock_is_mutexed(lock));
-		LINVRNT(cl_lock_invariant(env, lock));
-		LASSERTF(lock->cll_state == CLS_QUEUING ||
-			 lock->cll_state == CLS_ENQUEUED ||
-			 lock->cll_state == CLS_HELD ||
-			 lock->cll_state == CLS_INTRANSIT,
-			 "lock state: %d\n", lock->cll_state);
-		LASSERT(lock->cll_users > 0);
-		LASSERT(lock->cll_holds > 0);
-
-		result = lock->cll_error;
-		if (result != 0)
-			break;
-
-		if (cl_lock_is_intransit(lock)) {
-			result = CLO_WAIT;
-			break;
-		}
-
-		if (lock->cll_state == CLS_HELD)
-			/* nothing to do */
-			break;
-
-		result = -ENOSYS;
-		list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-			if (slice->cls_ops->clo_wait != NULL) {
-				result = slice->cls_ops->clo_wait(env, slice);
-				if (result != 0)
-					break;
-			}
-		}
-		LASSERT(result != -ENOSYS);
-		if (result == 0) {
-			LASSERT(lock->cll_state != CLS_INTRANSIT);
-			cl_lock_state_set(env, lock, CLS_HELD);
-		}
-	} while (result == CLO_REPEAT);
-	return result;
-}
-EXPORT_SYMBOL(cl_wait_try);
-
-/**
- * Waits until enqueued lock is granted.
- *
- * \pre current thread or io owns a hold on the lock
- * \pre ergo(result == 0, lock->cll_state == CLS_ENQUEUED ||
- *			lock->cll_state == CLS_HELD)
- *
- * \post ergo(result == 0, lock->cll_state == CLS_HELD)
- */
-int cl_wait(const struct lu_env *env, struct cl_lock *lock)
-{
-	int result;
-
-	cl_lock_mutex_get(env, lock);
-
-	LINVRNT(cl_lock_invariant(env, lock));
-	LASSERTF(lock->cll_state == CLS_ENQUEUED || lock->cll_state == CLS_HELD,
-		 "Wrong state %d \n", lock->cll_state);
-	LASSERT(lock->cll_holds > 0);
-
-	do {
-		result = cl_wait_try(env, lock);
-		if (result == CLO_WAIT) {
-			result = cl_lock_state_wait(env, lock);
-			if (result == 0)
-				continue;
-		}
-		break;
-	} while (1);
-	if (result < 0) {
-		cl_unuse_try(env, lock);
-		cl_lock_lockdep_release(env, lock);
-	}
-	cl_lock_trace(D_DLMTRACE, env, "wait lock", lock);
-	cl_lock_mutex_put(env, lock);
-	LASSERT(ergo(result == 0, lock->cll_state == CLS_HELD));
-	return result;
-}
-EXPORT_SYMBOL(cl_wait);
-
-/**
- * Executes cl_lock_operations::clo_weigh(), and sums results to estimate lock
- * value.
- */
-unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock)
-{
-	const struct cl_lock_slice *slice;
-	unsigned long pound;
-	unsigned long ounce;
-
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	pound = 0;
-	list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_weigh != NULL) {
-			ounce = slice->cls_ops->clo_weigh(env, slice);
-			pound += ounce;
-			if (pound < ounce) /* over-weight^Wflow */
-				pound = ~0UL;
-		}
-	}
-	return pound;
-}
-EXPORT_SYMBOL(cl_lock_weigh);
-
-/**
- * Notifies layers that lock description changed.
- *
- * The server can grant client a lock different from one that was requested
- * (e.g., larger in extent). This method is called when actually granted lock
- * description becomes known to let layers to accommodate for changed lock
- * description.
- *
- * \see cl_lock_operations::clo_modify()
- */
-int cl_lock_modify(const struct lu_env *env, struct cl_lock *lock,
-		   const struct cl_lock_descr *desc)
-{
-	const struct cl_lock_slice *slice;
-	struct cl_object	   *obj = lock->cll_descr.cld_obj;
-	struct cl_object_header    *hdr = cl_object_header(obj);
-	int result;
-
-	cl_lock_trace(D_DLMTRACE, env, "modify lock", lock);
-	/* don't allow object to change */
-	LASSERT(obj == desc->cld_obj);
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) {
-		if (slice->cls_ops->clo_modify != NULL) {
-			result = slice->cls_ops->clo_modify(env, slice, desc);
-			if (result != 0)
-				return result;
-		}
-	}
-	CL_LOCK_DEBUG(D_DLMTRACE, env, lock, " -> "DDESCR"@"DFID"\n",
-		      PDESCR(desc), PFID(lu_object_fid(&desc->cld_obj->co_lu)));
-	/*
-	 * Just replace description in place. Nothing more is needed for
-	 * now. If locks were indexed according to their extent and/or mode,
-	 * that index would have to be updated here.
-	 */
-	spin_lock(&hdr->coh_lock_guard);
-	lock->cll_descr = *desc;
-	spin_unlock(&hdr->coh_lock_guard);
-	return 0;
-}
-EXPORT_SYMBOL(cl_lock_modify);
-
-/**
- * Initializes lock closure with a given origin.
- *
- * \see cl_lock_closure
- */
-void cl_lock_closure_init(const struct lu_env *env,
-			  struct cl_lock_closure *closure,
-			  struct cl_lock *origin, int wait)
-{
-	LINVRNT(cl_lock_is_mutexed(origin));
-	LINVRNT(cl_lock_invariant(env, origin));
-
-	INIT_LIST_HEAD(&closure->clc_list);
-	closure->clc_origin = origin;
-	closure->clc_wait   = wait;
-	closure->clc_nr     = 0;
-}
-EXPORT_SYMBOL(cl_lock_closure_init);
-
-/**
- * Builds a closure of \a lock.
- *
- * Building of a closure consists of adding initial lock (\a lock) into it,
- * and calling cl_lock_operations::clo_closure() methods of \a lock. These
- * methods might call cl_lock_closure_build() recursively again, adding more
- * locks to the closure, etc.
- *
- * \see cl_lock_closure
- */
-int cl_lock_closure_build(const struct lu_env *env, struct cl_lock *lock,
-			  struct cl_lock_closure *closure)
-{
-	const struct cl_lock_slice *slice;
-	int result;
-
-	LINVRNT(cl_lock_is_mutexed(closure->clc_origin));
-	LINVRNT(cl_lock_invariant(env, closure->clc_origin));
-
-	result = cl_lock_enclosure(env, lock, closure);
-	if (result == 0) {
-		list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-			if (slice->cls_ops->clo_closure != NULL) {
-				result = slice->cls_ops->clo_closure(env, slice,
-								     closure);
-				if (result != 0)
-					break;
-			}
-		}
-	}
-	if (result != 0)
-		cl_lock_disclosure(env, closure);
-	return result;
-}
-EXPORT_SYMBOL(cl_lock_closure_build);
-
-/**
- * Adds new lock to a closure.
- *
- * Try-locks \a lock and if succeeded, adds it to the closure (never more than
- * once). If try-lock failed, returns CLO_REPEAT, after optionally waiting
- * until next try-lock is likely to succeed.
- */
-int cl_lock_enclosure(const struct lu_env *env, struct cl_lock *lock,
-		      struct cl_lock_closure *closure)
-{
-	int result = 0;
-
-	cl_lock_trace(D_DLMTRACE, env, "enclosure lock", lock);
-	if (!cl_lock_mutex_try(env, lock)) {
-		/*
-		 * If lock->cll_inclosure is not empty, lock is already in
-		 * this closure.
-		 */
-		if (list_empty(&lock->cll_inclosure)) {
-			cl_lock_get_trust(lock);
-			lu_ref_add(&lock->cll_reference, "closure", closure);
-			list_add(&lock->cll_inclosure, &closure->clc_list);
-			closure->clc_nr++;
-		} else
-			cl_lock_mutex_put(env, lock);
-		result = 0;
-	} else {
-		cl_lock_disclosure(env, closure);
-		if (closure->clc_wait) {
-			cl_lock_get_trust(lock);
-			lu_ref_add(&lock->cll_reference, "closure-w", closure);
-			cl_lock_mutex_put(env, closure->clc_origin);
-
-			LASSERT(cl_lock_nr_mutexed(env) == 0);
-			cl_lock_mutex_get(env, lock);
-			cl_lock_mutex_put(env, lock);
-
-			cl_lock_mutex_get(env, closure->clc_origin);
-			lu_ref_del(&lock->cll_reference, "closure-w", closure);
-			cl_lock_put(env, lock);
-		}
-		result = CLO_REPEAT;
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_lock_enclosure);
-
-/** Releases mutices of enclosed locks. */
-void cl_lock_disclosure(const struct lu_env *env,
-			struct cl_lock_closure *closure)
-{
-	struct cl_lock *scan;
-	struct cl_lock *temp;
-
-	cl_lock_trace(D_DLMTRACE, env, "disclosure lock", closure->clc_origin);
-	list_for_each_entry_safe(scan, temp, &closure->clc_list,
-				     cll_inclosure){
-		list_del_init(&scan->cll_inclosure);
-		cl_lock_mutex_put(env, scan);
-		lu_ref_del(&scan->cll_reference, "closure", closure);
-		cl_lock_put(env, scan);
-		closure->clc_nr--;
-	}
-	LASSERT(closure->clc_nr == 0);
-}
-EXPORT_SYMBOL(cl_lock_disclosure);
-
-/** Finalizes a closure. */
-void cl_lock_closure_fini(struct cl_lock_closure *closure)
-{
-	LASSERT(closure->clc_nr == 0);
-	LASSERT(list_empty(&closure->clc_list));
-}
-EXPORT_SYMBOL(cl_lock_closure_fini);
-
-/**
- * Destroys this lock. Notifies layers (bottom-to-top) that lock is being
- * destroyed, then destroy the lock. If there are holds on the lock, postpone
- * destruction until all holds are released. This is called when a decision is
- * made to destroy the lock in the future. E.g., when a blocking AST is
- * received on it, or fatal communication error happens.
- *
- * Caller must have a reference on this lock to prevent a situation, when
- * deleted lock lingers in memory for indefinite time, because nobody calls
- * cl_lock_put() to finish it.
- *
- * \pre atomic_read(&lock->cll_ref) > 0
- * \pre ergo(cl_lock_nesting(lock) == CNL_TOP,
- *	   cl_lock_nr_mutexed(env) == 1)
- *      [i.e., if a top-lock is deleted, mutices of no other locks can be
- *      held, as deletion of sub-locks might require releasing a top-lock
- *      mutex]
- *
- * \see cl_lock_operations::clo_delete()
- * \see cl_lock::cll_holds
- */
-void cl_lock_delete(const struct lu_env *env, struct cl_lock *lock)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-	LASSERT(ergo(cl_lock_nesting(lock) == CNL_TOP,
-		     cl_lock_nr_mutexed(env) == 1));
-
-	cl_lock_trace(D_DLMTRACE, env, "delete lock", lock);
-	if (lock->cll_holds == 0)
-		cl_lock_delete0(env, lock);
-	else
-		lock->cll_flags |= CLF_DOOMED;
-}
-EXPORT_SYMBOL(cl_lock_delete);
-
-/**
- * Mark lock as irrecoverably failed, and mark it for destruction. This
- * happens when, e.g., server fails to grant a lock to us, or networking
- * time-out happens.
- *
- * \pre atomic_read(&lock->cll_ref) > 0
- *
- * \see clo_lock_delete()
- * \see cl_lock::cll_holds
- */
-void cl_lock_error(const struct lu_env *env, struct cl_lock *lock, int error)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	if (lock->cll_error == 0 && error != 0) {
-		cl_lock_trace(D_DLMTRACE, env, "set lock error", lock);
-		lock->cll_error = error;
-		cl_lock_signal(env, lock);
-		cl_lock_cancel(env, lock);
-		cl_lock_delete(env, lock);
-	}
-}
-EXPORT_SYMBOL(cl_lock_error);
-
-/**
- * Cancels this lock. Notifies layers
- * (bottom-to-top) that lock is being cancelled, then destroy the lock. If
- * there are holds on the lock, postpone cancellation until
- * all holds are released.
- *
- * Cancellation notification is delivered to layers at most once.
- *
- * \see cl_lock_operations::clo_cancel()
- * \see cl_lock::cll_holds
- */
-void cl_lock_cancel(const struct lu_env *env, struct cl_lock *lock)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	cl_lock_trace(D_DLMTRACE, env, "cancel lock", lock);
-	if (lock->cll_holds == 0)
-		cl_lock_cancel0(env, lock);
-	else
-		lock->cll_flags |= CLF_CANCELPEND;
-}
-EXPORT_SYMBOL(cl_lock_cancel);
-
-/**
- * Finds an existing lock covering given index and optionally different from a
- * given \a except lock.
- */
-struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env,
-				 struct cl_object *obj, pgoff_t index,
-				 struct cl_lock *except,
-				 int pending, int canceld)
-{
-	struct cl_object_header *head;
-	struct cl_lock	  *scan;
-	struct cl_lock	  *lock;
-	struct cl_lock_descr    *need;
-
-	head = cl_object_header(obj);
-	need = &cl_env_info(env)->clt_descr;
-	lock = NULL;
-
-	need->cld_mode = CLM_READ; /* CLM_READ matches both READ & WRITE, but
-				    * not PHANTOM */
-	need->cld_start = need->cld_end = index;
-	need->cld_enq_flags = 0;
-
-	spin_lock(&head->coh_lock_guard);
-	/* It is fine to match any group lock since there could be only one
-	 * with a uniq gid and it conflicts with all other lock modes too */
-	list_for_each_entry(scan, &head->coh_locks, cll_linkage) {
-		if (scan != except &&
-		    (scan->cll_descr.cld_mode == CLM_GROUP ||
-		    cl_lock_ext_match(&scan->cll_descr, need)) &&
-		    scan->cll_state >= CLS_HELD &&
-		    scan->cll_state < CLS_FREEING &&
-		    /*
-		     * This check is racy as the lock can be canceled right
-		     * after it is done, but this is fine, because page exists
-		     * already.
-		     */
-		    (canceld || !(scan->cll_flags & CLF_CANCELLED)) &&
-		    (pending || !(scan->cll_flags & CLF_CANCELPEND))) {
-			/* Don't increase cs_hit here since this
-			 * is just a helper function. */
-			cl_lock_get_trust(scan);
-			lock = scan;
-			break;
-		}
-	}
-	spin_unlock(&head->coh_lock_guard);
-	return lock;
-}
-EXPORT_SYMBOL(cl_lock_at_pgoff);
-
-/**
- * Calculate the page offset at the layer of @lock.
- * At the time of this writing, @page is top page and @lock is sub lock.
- */
-static pgoff_t pgoff_at_lock(struct cl_page *page, struct cl_lock *lock)
-{
-	struct lu_device_type *dtype;
-	const struct cl_page_slice *slice;
-
-	dtype = lock->cll_descr.cld_obj->co_lu.lo_dev->ld_type;
-	slice = cl_page_at(page, dtype);
-	LASSERT(slice != NULL);
-	return slice->cpl_page->cp_index;
-}
-
-/**
- * Check if page @page is covered by an extra lock or discard it.
- */
-static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io,
-				struct cl_page *page, void *cbdata)
-{
-	struct cl_thread_info *info = cl_env_info(env);
-	struct cl_lock *lock = cbdata;
-	pgoff_t index = pgoff_at_lock(page, lock);
-
-	if (index >= info->clt_fn_index) {
-		struct cl_lock *tmp;
-
-		/* refresh non-overlapped index */
-		tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index,
-					lock, 1, 0);
-		if (tmp != NULL) {
-			/* Cache the first-non-overlapped index so as to skip
-			 * all pages within [index, clt_fn_index). This
-			 * is safe because if tmp lock is canceled, it will
-			 * discard these pages. */
-			info->clt_fn_index = tmp->cll_descr.cld_end + 1;
-			if (tmp->cll_descr.cld_end == CL_PAGE_EOF)
-				info->clt_fn_index = CL_PAGE_EOF;
-			cl_lock_put(env, tmp);
-		} else if (cl_page_own(env, io, page) == 0) {
-			/* discard the page */
-			cl_page_unmap(env, io, page);
-			cl_page_discard(env, io, page);
-			cl_page_disown(env, io, page);
-		} else {
-			LASSERT(page->cp_state == CPS_FREEING);
-		}
-	}
-
-	info->clt_next_index = index + 1;
-	return CLP_GANG_OKAY;
-}
-
-static int discard_cb(const struct lu_env *env, struct cl_io *io,
-		      struct cl_page *page, void *cbdata)
-{
-	struct cl_thread_info *info = cl_env_info(env);
-	struct cl_lock *lock   = cbdata;
-
-	LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE);
-	KLASSERT(ergo(page->cp_type == CPT_CACHEABLE,
-		      !PageWriteback(cl_page_vmpage(env, page))));
-	KLASSERT(ergo(page->cp_type == CPT_CACHEABLE,
-		      !PageDirty(cl_page_vmpage(env, page))));
-
-	info->clt_next_index = pgoff_at_lock(page, lock) + 1;
-	if (cl_page_own(env, io, page) == 0) {
-		/* discard the page */
-		cl_page_unmap(env, io, page);
-		cl_page_discard(env, io, page);
-		cl_page_disown(env, io, page);
-	} else {
-		LASSERT(page->cp_state == CPS_FREEING);
-	}
-
-	return CLP_GANG_OKAY;
-}
-
-/**
- * Discard pages protected by the given lock. This function traverses radix
- * tree to find all covering pages and discard them. If a page is being covered
- * by other locks, it should remain in cache.
- *
- * If error happens on any step, the process continues anyway (the reasoning
- * behind this being that lock cancellation cannot be delayed indefinitely).
- */
-int cl_lock_discard_pages(const struct lu_env *env, struct cl_lock *lock)
-{
-	struct cl_thread_info *info  = cl_env_info(env);
-	struct cl_io	  *io    = &info->clt_io;
-	struct cl_lock_descr  *descr = &lock->cll_descr;
-	cl_page_gang_cb_t      cb;
-	int res;
-	int result;
-
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	io->ci_obj = cl_object_top(descr->cld_obj);
-	io->ci_ignore_layout = 1;
-	result = cl_io_init(env, io, CIT_MISC, io->ci_obj);
-	if (result != 0)
-		goto out;
-
-	cb = descr->cld_mode == CLM_READ ? check_and_discard_cb : discard_cb;
-	info->clt_fn_index = info->clt_next_index = descr->cld_start;
-	do {
-		res = cl_page_gang_lookup(env, descr->cld_obj, io,
-					  info->clt_next_index, descr->cld_end,
-					  cb, (void *)lock);
-		if (info->clt_next_index > descr->cld_end)
-			break;
-
-		if (res == CLP_GANG_RESCHED)
-			cond_resched();
-	} while (res != CLP_GANG_OKAY);
-out:
-	cl_io_fini(env, io);
-	return result;
-}
-EXPORT_SYMBOL(cl_lock_discard_pages);
-
-/**
- * Eliminate all locks for a given object.
- *
- * Caller has to guarantee that no lock is in active use.
- *
- * \param cancel when this is set, cl_locks_prune() cancels locks before
- *	       destroying.
- */
-void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int cancel)
-{
-	struct cl_object_header *head;
-	struct cl_lock	  *lock;
-
-	head = cl_object_header(obj);
-	/*
-	 * If locks are destroyed without cancellation, all pages must be
-	 * already destroyed (as otherwise they will be left unprotected).
-	 */
-	LASSERT(ergo(!cancel,
-		     head->coh_tree.rnode == NULL && head->coh_pages == 0));
-
-	spin_lock(&head->coh_lock_guard);
-	while (!list_empty(&head->coh_locks)) {
-		lock = container_of(head->coh_locks.next,
-				    struct cl_lock, cll_linkage);
-		cl_lock_get_trust(lock);
-		spin_unlock(&head->coh_lock_guard);
-		lu_ref_add(&lock->cll_reference, "prune", current);
-
-again:
-		cl_lock_mutex_get(env, lock);
-		if (lock->cll_state < CLS_FREEING) {
-			LASSERT(lock->cll_users <= 1);
-			if (unlikely(lock->cll_users == 1)) {
-				struct l_wait_info lwi = { 0 };
-
-				cl_lock_mutex_put(env, lock);
-				l_wait_event(lock->cll_wq,
-					     lock->cll_users == 0,
-					     &lwi);
-				goto again;
-			}
-
-			if (cancel)
-				cl_lock_cancel(env, lock);
-			cl_lock_delete(env, lock);
-		}
-		cl_lock_mutex_put(env, lock);
-		lu_ref_del(&lock->cll_reference, "prune", current);
-		cl_lock_put(env, lock);
-		spin_lock(&head->coh_lock_guard);
-	}
-	spin_unlock(&head->coh_lock_guard);
-}
-EXPORT_SYMBOL(cl_locks_prune);
-
-static struct cl_lock *cl_lock_hold_mutex(const struct lu_env *env,
-					  const struct cl_io *io,
-					  const struct cl_lock_descr *need,
-					  const char *scope, const void *source)
-{
-	struct cl_lock *lock;
-
-	while (1) {
-		lock = cl_lock_find(env, io, need);
-		if (IS_ERR(lock))
-			break;
-		cl_lock_mutex_get(env, lock);
-		if (lock->cll_state < CLS_FREEING &&
-		    !(lock->cll_flags & CLF_CANCELLED)) {
-			cl_lock_hold_mod(env, lock, +1);
-			lu_ref_add(&lock->cll_holders, scope, source);
-			lu_ref_add(&lock->cll_reference, scope, source);
-			break;
-		}
-		cl_lock_mutex_put(env, lock);
-		cl_lock_put(env, lock);
-	}
-	return lock;
-}
-
-/**
- * Returns a lock matching \a need description with a reference and a hold on
- * it.
- *
- * This is much like cl_lock_find(), except that cl_lock_hold() additionally
- * guarantees that lock is not in the CLS_FREEING state on return.
- */
-struct cl_lock *cl_lock_hold(const struct lu_env *env, const struct cl_io *io,
-			     const struct cl_lock_descr *need,
-			     const char *scope, const void *source)
-{
-	struct cl_lock *lock;
-
-	lock = cl_lock_hold_mutex(env, io, need, scope, source);
-	if (!IS_ERR(lock))
-		cl_lock_mutex_put(env, lock);
-	return lock;
-}
-EXPORT_SYMBOL(cl_lock_hold);
-
-/**
- * Main high-level entry point of cl_lock interface that finds existing or
- * enqueues new lock matching given description.
- */
-struct cl_lock *cl_lock_request(const struct lu_env *env, struct cl_io *io,
-				const struct cl_lock_descr *need,
-				const char *scope, const void *source)
-{
-	struct cl_lock       *lock;
-	int		   rc;
-	__u32		 enqflags = need->cld_enq_flags;
-
-	do {
-		lock = cl_lock_hold_mutex(env, io, need, scope, source);
-		if (IS_ERR(lock))
-			break;
-
-		rc = cl_enqueue_locked(env, lock, io, enqflags);
-		if (rc == 0) {
-			if (cl_lock_fits_into(env, lock, need, io)) {
-				if (!(enqflags & CEF_AGL)) {
-					cl_lock_mutex_put(env, lock);
-					cl_lock_lockdep_acquire(env, lock,
-								enqflags);
-					break;
-				}
-				rc = 1;
-			}
-			cl_unuse_locked(env, lock);
-		}
-		cl_lock_trace(D_DLMTRACE, env,
-			      rc <= 0 ? "enqueue failed" : "agl succeed", lock);
-		cl_lock_hold_release(env, lock, scope, source);
-		cl_lock_mutex_put(env, lock);
-		lu_ref_del(&lock->cll_reference, scope, source);
-		cl_lock_put(env, lock);
-		if (rc > 0) {
-			LASSERT(enqflags & CEF_AGL);
-			lock = NULL;
-		} else if (rc != 0) {
-			lock = ERR_PTR(rc);
-		}
-	} while (rc == 0);
-	return lock;
-}
-EXPORT_SYMBOL(cl_lock_request);
-
-/**
- * Adds a hold to a known lock.
- */
-void cl_lock_hold_add(const struct lu_env *env, struct cl_lock *lock,
-		      const char *scope, const void *source)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-	LASSERT(lock->cll_state != CLS_FREEING);
-
-	cl_lock_hold_mod(env, lock, +1);
-	cl_lock_get(lock);
-	lu_ref_add(&lock->cll_holders, scope, source);
-	lu_ref_add(&lock->cll_reference, scope, source);
-}
-EXPORT_SYMBOL(cl_lock_hold_add);
-
-/**
- * Releases a hold and a reference on a lock, on which caller acquired a
- * mutex.
- */
-void cl_lock_unhold(const struct lu_env *env, struct cl_lock *lock,
-		    const char *scope, const void *source)
-{
-	LINVRNT(cl_lock_invariant(env, lock));
-	cl_lock_hold_release(env, lock, scope, source);
-	lu_ref_del(&lock->cll_reference, scope, source);
-	cl_lock_put(env, lock);
-}
-EXPORT_SYMBOL(cl_lock_unhold);
-
-/**
- * Releases a hold and a reference on a lock, obtained by cl_lock_hold().
- */
-void cl_lock_release(const struct lu_env *env, struct cl_lock *lock,
-		     const char *scope, const void *source)
-{
-	LINVRNT(cl_lock_invariant(env, lock));
-	cl_lock_trace(D_DLMTRACE, env, "release lock", lock);
-	cl_lock_mutex_get(env, lock);
-	cl_lock_hold_release(env, lock, scope, source);
-	cl_lock_mutex_put(env, lock);
-	lu_ref_del(&lock->cll_reference, scope, source);
-	cl_lock_put(env, lock);
-}
-EXPORT_SYMBOL(cl_lock_release);
-
-void cl_lock_user_add(const struct lu_env *env, struct cl_lock *lock)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-
-	cl_lock_used_mod(env, lock, +1);
-}
-EXPORT_SYMBOL(cl_lock_user_add);
-
-void cl_lock_user_del(const struct lu_env *env, struct cl_lock *lock)
-{
-	LINVRNT(cl_lock_is_mutexed(lock));
-	LINVRNT(cl_lock_invariant(env, lock));
-	LASSERT(lock->cll_users > 0);
-
-	cl_lock_used_mod(env, lock, -1);
-	if (lock->cll_users == 0)
-		wake_up_all(&lock->cll_wq);
-}
-EXPORT_SYMBOL(cl_lock_user_del);
-
-const char *cl_lock_mode_name(const enum cl_lock_mode mode)
-{
-	static const char *names[] = {
-		[CLM_PHANTOM] = "P",
-		[CLM_READ]    = "R",
-		[CLM_WRITE]   = "W",
-		[CLM_GROUP]   = "G"
-	};
-	if (0 <= mode && mode < ARRAY_SIZE(names))
-		return names[mode];
-	else
-		return "U";
-}
-EXPORT_SYMBOL(cl_lock_mode_name);
-
-/**
- * Prints human readable representation of a lock description.
- */
-void cl_lock_descr_print(const struct lu_env *env, void *cookie,
-		       lu_printer_t printer,
-		       const struct cl_lock_descr *descr)
-{
-	const struct lu_fid  *fid;
-
-	fid = lu_object_fid(&descr->cld_obj->co_lu);
-	(*printer)(env, cookie, DDESCR"@"DFID, PDESCR(descr), PFID(fid));
-}
-EXPORT_SYMBOL(cl_lock_descr_print);
-
-/**
- * Prints human readable representation of \a lock to the \a f.
- */
-void cl_lock_print(const struct lu_env *env, void *cookie,
-		   lu_printer_t printer, const struct cl_lock *lock)
-{
-	const struct cl_lock_slice *slice;
-	(*printer)(env, cookie, "lock@%p[%d %d %d %d %d %08lx] ",
-		   lock, atomic_read(&lock->cll_ref),
-		   lock->cll_state, lock->cll_error, lock->cll_holds,
-		   lock->cll_users, lock->cll_flags);
-	cl_lock_descr_print(env, cookie, printer, &lock->cll_descr);
-	(*printer)(env, cookie, " {\n");
-
-	list_for_each_entry(slice, &lock->cll_layers, cls_linkage) {
-		(*printer)(env, cookie, "    %s@%p: ",
-			   slice->cls_obj->co_lu.lo_dev->ld_type->ldt_name,
-			   slice);
-		if (slice->cls_ops->clo_print != NULL)
-			slice->cls_ops->clo_print(env, cookie, printer, slice);
-		(*printer)(env, cookie, "\n");
-	}
-	(*printer)(env, cookie, "} lock@%p\n", lock);
-}
-EXPORT_SYMBOL(cl_lock_print);
-
-int cl_lock_init(void)
-{
-	return lu_kmem_init(cl_lock_caches);
-}
-
-void cl_lock_fini(void)
-{
-	lu_kmem_fini(cl_lock_caches);
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
deleted file mode 100644
index 163fe0cd7f9a..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
+++ /dev/null
@@ -1,1137 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Client Lustre Object.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-/*
- * Locking.
- *
- *  i_mutex
- *      PG_locked
- *	  ->coh_page_guard
- *	  ->coh_lock_guard
- *	  ->coh_attr_guard
- *	  ->ls_guard
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../../include/linux/libcfs/libcfs.h"
-/* class_put_type() */
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_fid.h"
-#include <linux/list.h>
-#include "../../include/linux/libcfs/libcfs_hash.h"	/* for cfs_hash stuff */
-#include "../include/cl_object.h"
-#include "cl_internal.h"
-
-static struct kmem_cache *cl_env_kmem;
-
-/** Lock class of cl_object_header::coh_page_guard */
-static struct lock_class_key cl_page_guard_class;
-/** Lock class of cl_object_header::coh_lock_guard */
-static struct lock_class_key cl_lock_guard_class;
-/** Lock class of cl_object_header::coh_attr_guard */
-static struct lock_class_key cl_attr_guard_class;
-
-extern __u32 lu_context_tags_default;
-extern __u32 lu_session_tags_default;
-/**
- * Initialize cl_object_header.
- */
-int cl_object_header_init(struct cl_object_header *h)
-{
-	int result;
-
-	result = lu_object_header_init(&h->coh_lu);
-	if (result == 0) {
-		spin_lock_init(&h->coh_page_guard);
-		spin_lock_init(&h->coh_lock_guard);
-		spin_lock_init(&h->coh_attr_guard);
-		lockdep_set_class(&h->coh_page_guard, &cl_page_guard_class);
-		lockdep_set_class(&h->coh_lock_guard, &cl_lock_guard_class);
-		lockdep_set_class(&h->coh_attr_guard, &cl_attr_guard_class);
-		h->coh_pages = 0;
-		/* XXX hard coded GFP_* mask. */
-		INIT_RADIX_TREE(&h->coh_tree, GFP_ATOMIC);
-		INIT_LIST_HEAD(&h->coh_locks);
-		h->coh_page_bufsize = ALIGN(sizeof(struct cl_page), 8);
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_object_header_init);
-
-/**
- * Finalize cl_object_header.
- */
-void cl_object_header_fini(struct cl_object_header *h)
-{
-	LASSERT(list_empty(&h->coh_locks));
-	lu_object_header_fini(&h->coh_lu);
-}
-EXPORT_SYMBOL(cl_object_header_fini);
-
-/**
- * Returns a cl_object with a given \a fid.
- *
- * Returns either cached or newly created object. Additional reference on the
- * returned object is acquired.
- *
- * \see lu_object_find(), cl_page_find(), cl_lock_find()
- */
-struct cl_object *cl_object_find(const struct lu_env *env,
-				 struct cl_device *cd, const struct lu_fid *fid,
-				 const struct cl_object_conf *c)
-{
-	might_sleep();
-	return lu2cl(lu_object_find_slice(env, cl2lu_dev(cd), fid, &c->coc_lu));
-}
-EXPORT_SYMBOL(cl_object_find);
-
-/**
- * Releases a reference on \a o.
- *
- * When last reference is released object is returned to the cache, unless
- * lu_object_header_flags::LU_OBJECT_HEARD_BANSHEE bit is set in its header.
- *
- * \see cl_page_put(), cl_lock_put().
- */
-void cl_object_put(const struct lu_env *env, struct cl_object *o)
-{
-	lu_object_put(env, &o->co_lu);
-}
-EXPORT_SYMBOL(cl_object_put);
-
-/**
- * Acquire an additional reference to the object \a o.
- *
- * This can only be used to acquire _additional_ reference, i.e., caller
- * already has to possess at least one reference to \a o before calling this.
- *
- * \see cl_page_get(), cl_lock_get().
- */
-void cl_object_get(struct cl_object *o)
-{
-	lu_object_get(&o->co_lu);
-}
-EXPORT_SYMBOL(cl_object_get);
-
-/**
- * Returns the top-object for a given \a o.
- *
- * \see cl_page_top(), cl_io_top()
- */
-struct cl_object *cl_object_top(struct cl_object *o)
-{
-	struct cl_object_header *hdr = cl_object_header(o);
-	struct cl_object *top;
-
-	while (hdr->coh_parent != NULL)
-		hdr = hdr->coh_parent;
-
-	top = lu2cl(lu_object_top(&hdr->coh_lu));
-	CDEBUG(D_TRACE, "%p -> %p\n", o, top);
-	return top;
-}
-EXPORT_SYMBOL(cl_object_top);
-
-/**
- * Returns pointer to the lock protecting data-attributes for the given object
- * \a o.
- *
- * Data-attributes are protected by the cl_object_header::coh_attr_guard
- * spin-lock in the top-object.
- *
- * \see cl_attr, cl_object_attr_lock(), cl_object_operations::coo_attr_get().
- */
-static spinlock_t *cl_object_attr_guard(struct cl_object *o)
-{
-	return &cl_object_header(cl_object_top(o))->coh_attr_guard;
-}
-
-/**
- * Locks data-attributes.
- *
- * Prevents data-attributes from changing, until lock is released by
- * cl_object_attr_unlock(). This has to be called before calls to
- * cl_object_attr_get(), cl_object_attr_set().
- */
-void cl_object_attr_lock(struct cl_object *o)
-	__acquires(cl_object_attr_guard(o))
-{
-	spin_lock(cl_object_attr_guard(o));
-}
-EXPORT_SYMBOL(cl_object_attr_lock);
-
-/**
- * Releases data-attributes lock, acquired by cl_object_attr_lock().
- */
-void cl_object_attr_unlock(struct cl_object *o)
-	__releases(cl_object_attr_guard(o))
-{
-	spin_unlock(cl_object_attr_guard(o));
-}
-EXPORT_SYMBOL(cl_object_attr_unlock);
-
-/**
- * Returns data-attributes of an object \a obj.
- *
- * Every layer is asked (by calling cl_object_operations::coo_attr_get())
- * top-to-bottom to fill in parts of \a attr that this layer is responsible
- * for.
- */
-int cl_object_attr_get(const struct lu_env *env, struct cl_object *obj,
-		       struct cl_attr *attr)
-{
-	struct lu_object_header *top;
-	int result;
-
-	assert_spin_locked(cl_object_attr_guard(obj));
-
-	top = obj->co_lu.lo_header;
-	result = 0;
-	list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) {
-		if (obj->co_ops->coo_attr_get != NULL) {
-			result = obj->co_ops->coo_attr_get(env, obj, attr);
-			if (result != 0) {
-				if (result > 0)
-					result = 0;
-				break;
-			}
-		}
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_object_attr_get);
-
-/**
- * Updates data-attributes of an object \a obj.
- *
- * Only attributes, mentioned in a validness bit-mask \a v are
- * updated. Calls cl_object_operations::coo_attr_set() on every layer, bottom
- * to top.
- */
-int cl_object_attr_set(const struct lu_env *env, struct cl_object *obj,
-		       const struct cl_attr *attr, unsigned v)
-{
-	struct lu_object_header *top;
-	int result;
-
-	assert_spin_locked(cl_object_attr_guard(obj));
-
-	top = obj->co_lu.lo_header;
-	result = 0;
-	list_for_each_entry_reverse(obj, &top->loh_layers,
-					co_lu.lo_linkage) {
-		if (obj->co_ops->coo_attr_set != NULL) {
-			result = obj->co_ops->coo_attr_set(env, obj, attr, v);
-			if (result != 0) {
-				if (result > 0)
-					result = 0;
-				break;
-			}
-		}
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_object_attr_set);
-
-/**
- * Notifies layers (bottom-to-top) that glimpse AST was received.
- *
- * Layers have to fill \a lvb fields with information that will be shipped
- * back to glimpse issuer.
- *
- * \see cl_lock_operations::clo_glimpse()
- */
-int cl_object_glimpse(const struct lu_env *env, struct cl_object *obj,
-		      struct ost_lvb *lvb)
-{
-	struct lu_object_header *top;
-	int result;
-
-	top = obj->co_lu.lo_header;
-	result = 0;
-	list_for_each_entry_reverse(obj, &top->loh_layers,
-					co_lu.lo_linkage) {
-		if (obj->co_ops->coo_glimpse != NULL) {
-			result = obj->co_ops->coo_glimpse(env, obj, lvb);
-			if (result != 0)
-				break;
-		}
-	}
-	LU_OBJECT_HEADER(D_DLMTRACE, env, lu_object_top(top),
-			 "size: %llu mtime: %llu atime: %llu ctime: %llu blocks: %llu\n",
-			 lvb->lvb_size, lvb->lvb_mtime, lvb->lvb_atime,
-			 lvb->lvb_ctime, lvb->lvb_blocks);
-	return result;
-}
-EXPORT_SYMBOL(cl_object_glimpse);
-
-/**
- * Updates a configuration of an object \a obj.
- */
-int cl_conf_set(const struct lu_env *env, struct cl_object *obj,
-		const struct cl_object_conf *conf)
-{
-	struct lu_object_header *top;
-	int result;
-
-	top = obj->co_lu.lo_header;
-	result = 0;
-	list_for_each_entry(obj, &top->loh_layers, co_lu.lo_linkage) {
-		if (obj->co_ops->coo_conf_set != NULL) {
-			result = obj->co_ops->coo_conf_set(env, obj, conf);
-			if (result != 0)
-				break;
-		}
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_conf_set);
-
-/**
- * Helper function removing all object locks, and marking object for
- * deletion. All object pages must have been deleted at this point.
- *
- * This is called by cl_inode_fini() and lov_object_delete() to destroy top-
- * and sub- objects respectively.
- */
-void cl_object_kill(const struct lu_env *env, struct cl_object *obj)
-{
-	struct cl_object_header *hdr;
-
-	hdr = cl_object_header(obj);
-	LASSERT(hdr->coh_tree.rnode == NULL);
-	LASSERT(hdr->coh_pages == 0);
-
-	set_bit(LU_OBJECT_HEARD_BANSHEE, &hdr->coh_lu.loh_flags);
-	/*
-	 * Destroy all locks. Object destruction (including cl_inode_fini())
-	 * cannot cancel the locks, because in the case of a local client,
-	 * where client and server share the same thread running
-	 * prune_icache(), this can dead-lock with ldlm_cancel_handler()
-	 * waiting on __wait_on_freeing_inode().
-	 */
-	cl_locks_prune(env, obj, 0);
-}
-EXPORT_SYMBOL(cl_object_kill);
-
-/**
- * Prunes caches of pages and locks for this object.
- */
-void cl_object_prune(const struct lu_env *env, struct cl_object *obj)
-{
-	cl_pages_prune(env, obj);
-	cl_locks_prune(env, obj, 1);
-}
-EXPORT_SYMBOL(cl_object_prune);
-
-/**
- * Check if the object has locks.
- */
-int cl_object_has_locks(struct cl_object *obj)
-{
-	struct cl_object_header *head = cl_object_header(obj);
-	int has;
-
-	spin_lock(&head->coh_lock_guard);
-	has = list_empty(&head->coh_locks);
-	spin_unlock(&head->coh_lock_guard);
-
-	return (has == 0);
-}
-EXPORT_SYMBOL(cl_object_has_locks);
-
-void cache_stats_init(struct cache_stats *cs, const char *name)
-{
-	int i;
-
-	cs->cs_name = name;
-	for (i = 0; i < CS_NR; i++)
-		atomic_set(&cs->cs_stats[i], 0);
-}
-
-int cache_stats_print(const struct cache_stats *cs, struct seq_file *m, int h)
-{
-	int i;
-	/*
-	 *   lookup    hit    total  cached create
-	 * env: ...... ...... ...... ...... ......
-	 */
-	if (h) {
-		const char *names[CS_NR] = CS_NAMES;
-
-		seq_printf(m, "%6s", " ");
-		for (i = 0; i < CS_NR; i++)
-			seq_printf(m, "%8s", names[i]);
-		seq_printf(m, "\n");
-	}
-
-	seq_printf(m, "%5.5s:", cs->cs_name);
-	for (i = 0; i < CS_NR; i++)
-		seq_printf(m, "%8u", atomic_read(&cs->cs_stats[i]));
-	return 0;
-}
-
-/**
- * Initialize client site.
- *
- * Perform common initialization (lu_site_init()), and initialize statistical
- * counters. Also perform global initializations on the first call.
- */
-int cl_site_init(struct cl_site *s, struct cl_device *d)
-{
-	int i;
-	int result;
-
-	result = lu_site_init(&s->cs_lu, &d->cd_lu_dev);
-	if (result == 0) {
-		cache_stats_init(&s->cs_pages, "pages");
-		cache_stats_init(&s->cs_locks, "locks");
-		for (i = 0; i < ARRAY_SIZE(s->cs_pages_state); ++i)
-			atomic_set(&s->cs_pages_state[0], 0);
-		for (i = 0; i < ARRAY_SIZE(s->cs_locks_state); ++i)
-			atomic_set(&s->cs_locks_state[i], 0);
-	}
-	return result;
-}
-EXPORT_SYMBOL(cl_site_init);
-
-/**
- * Finalize client site. Dual to cl_site_init().
- */
-void cl_site_fini(struct cl_site *s)
-{
-	lu_site_fini(&s->cs_lu);
-}
-EXPORT_SYMBOL(cl_site_fini);
-
-static struct cache_stats cl_env_stats = {
-	.cs_name    = "envs",
-	.cs_stats = { ATOMIC_INIT(0), }
-};
-
-/**
- * Outputs client site statistical counters into a buffer. Suitable for
- * ll_rd_*()-style functions.
- */
-int cl_site_stats_print(const struct cl_site *site, struct seq_file *m)
-{
-	int i;
-	static const char *pstate[] = {
-		[CPS_CACHED]  = "c",
-		[CPS_OWNED]   = "o",
-		[CPS_PAGEOUT] = "w",
-		[CPS_PAGEIN]  = "r",
-		[CPS_FREEING] = "f"
-	};
-	static const char *lstate[] = {
-		[CLS_NEW]       = "n",
-		[CLS_QUEUING]   = "q",
-		[CLS_ENQUEUED]  = "e",
-		[CLS_HELD]      = "h",
-		[CLS_INTRANSIT] = "t",
-		[CLS_CACHED]    = "c",
-		[CLS_FREEING]   = "f"
-	};
-/*
-       lookup    hit  total   busy create
-pages: ...... ...... ...... ...... ...... [...... ...... ...... ......]
-locks: ...... ...... ...... ...... ...... [...... ...... ...... ...... ......]
-  env: ...... ...... ...... ...... ......
- */
-	lu_site_stats_print(&site->cs_lu, m);
-	cache_stats_print(&site->cs_pages, m, 1);
-	seq_printf(m, " [");
-	for (i = 0; i < ARRAY_SIZE(site->cs_pages_state); ++i)
-		seq_printf(m, "%s: %u ", pstate[i],
-				atomic_read(&site->cs_pages_state[i]));
-	seq_printf(m, "]\n");
-	cache_stats_print(&site->cs_locks, m, 0);
-	seq_printf(m, " [");
-	for (i = 0; i < ARRAY_SIZE(site->cs_locks_state); ++i)
-		seq_printf(m, "%s: %u ", lstate[i],
-				atomic_read(&site->cs_locks_state[i]));
-	seq_printf(m, "]\n");
-	cache_stats_print(&cl_env_stats, m, 0);
-	seq_printf(m, "\n");
-	return 0;
-}
-EXPORT_SYMBOL(cl_site_stats_print);
-
-/*****************************************************************************
- *
- * lu_env handling on client.
- *
- */
-
-/**
- * The most efficient way is to store cl_env pointer in task specific
- * structures. On Linux, it wont' be easy to use task_struct->journal_info
- * because Lustre code may call into other fs which has certain assumptions
- * about journal_info. Currently following fields in task_struct are identified
- * can be used for this purpose:
- *  - cl_env: for liblustre.
- *  - tux_info: only on RedHat kernel.
- *  - ...
- * \note As long as we use task_struct to store cl_env, we assume that once
- * called into Lustre, we'll never call into the other part of the kernel
- * which will use those fields in task_struct without explicitly exiting
- * Lustre.
- *
- * If there's no space in task_struct is available, hash will be used.
- * bz20044, bz22683.
- */
-
-struct cl_env {
-	void	     *ce_magic;
-	struct lu_env     ce_lu;
-	struct lu_context ce_ses;
-
-	/**
-	 * This allows cl_env to be entered into cl_env_hash which implements
-	 * the current thread -> client environment lookup.
-	 */
-	struct hlist_node  ce_node;
-	/**
-	 * Owner for the current cl_env.
-	 *
-	 * If LL_TASK_CL_ENV is defined, this point to the owning current,
-	 * only for debugging purpose ;
-	 * Otherwise hash is used, and this is the key for cfs_hash.
-	 * Now current thread pid is stored. Note using thread pointer would
-	 * lead to unbalanced hash because of its specific allocation locality
-	 * and could be varied for different platforms and OSes, even different
-	 * OS versions.
-	 */
-	void	     *ce_owner;
-
-	/*
-	 * Linkage into global list of all client environments. Used for
-	 * garbage collection.
-	 */
-	struct list_head	ce_linkage;
-	/*
-	 *
-	 */
-	int	       ce_ref;
-	/*
-	 * Debugging field: address of the caller who made original
-	 * allocation.
-	 */
-	void	     *ce_debug;
-};
-
-#define CL_ENV_INC(counter)
-#define CL_ENV_DEC(counter)
-
-static void cl_env_init0(struct cl_env *cle, void *debug)
-{
-	LASSERT(cle->ce_ref == 0);
-	LASSERT(cle->ce_magic == &cl_env_init0);
-	LASSERT(cle->ce_debug == NULL && cle->ce_owner == NULL);
-
-	cle->ce_ref = 1;
-	cle->ce_debug = debug;
-	CL_ENV_INC(busy);
-}
-
-
-/*
- * The implementation of using hash table to connect cl_env and thread
- */
-
-static struct cfs_hash *cl_env_hash;
-
-static unsigned cl_env_hops_hash(struct cfs_hash *lh,
-				 const void *key, unsigned mask)
-{
-#if BITS_PER_LONG == 64
-	return cfs_hash_u64_hash((__u64)key, mask);
-#else
-	return cfs_hash_u32_hash((__u32)key, mask);
-#endif
-}
-
-static void *cl_env_hops_obj(struct hlist_node *hn)
-{
-	struct cl_env *cle = hlist_entry(hn, struct cl_env, ce_node);
-	LASSERT(cle->ce_magic == &cl_env_init0);
-	return (void *)cle;
-}
-
-static int cl_env_hops_keycmp(const void *key, struct hlist_node *hn)
-{
-	struct cl_env *cle = cl_env_hops_obj(hn);
-
-	LASSERT(cle->ce_owner != NULL);
-	return (key == cle->ce_owner);
-}
-
-static void cl_env_hops_noop(struct cfs_hash *hs, struct hlist_node *hn)
-{
-	struct cl_env *cle = hlist_entry(hn, struct cl_env, ce_node);
-	LASSERT(cle->ce_magic == &cl_env_init0);
-}
-
-static cfs_hash_ops_t cl_env_hops = {
-	.hs_hash	= cl_env_hops_hash,
-	.hs_key	 = cl_env_hops_obj,
-	.hs_keycmp      = cl_env_hops_keycmp,
-	.hs_object      = cl_env_hops_obj,
-	.hs_get	 = cl_env_hops_noop,
-	.hs_put_locked  = cl_env_hops_noop,
-};
-
-static inline struct cl_env *cl_env_fetch(void)
-{
-	struct cl_env *cle;
-
-	cle = cfs_hash_lookup(cl_env_hash, (void *) (long) current->pid);
-	LASSERT(ergo(cle, cle->ce_magic == &cl_env_init0));
-	return cle;
-}
-
-static inline void cl_env_attach(struct cl_env *cle)
-{
-	if (cle) {
-		int rc;
-
-		LASSERT(cle->ce_owner == NULL);
-		cle->ce_owner = (void *) (long) current->pid;
-		rc = cfs_hash_add_unique(cl_env_hash, cle->ce_owner,
-					 &cle->ce_node);
-		LASSERT(rc == 0);
-	}
-}
-
-static inline void cl_env_do_detach(struct cl_env *cle)
-{
-	void *cookie;
-
-	LASSERT(cle->ce_owner == (void *) (long) current->pid);
-	cookie = cfs_hash_del(cl_env_hash, cle->ce_owner,
-			      &cle->ce_node);
-	LASSERT(cookie == cle);
-	cle->ce_owner = NULL;
-}
-
-static int cl_env_store_init(void) {
-	cl_env_hash = cfs_hash_create("cl_env",
-				      HASH_CL_ENV_BITS, HASH_CL_ENV_BITS,
-				      HASH_CL_ENV_BKT_BITS, 0,
-				      CFS_HASH_MIN_THETA,
-				      CFS_HASH_MAX_THETA,
-				      &cl_env_hops,
-				      CFS_HASH_RW_BKTLOCK);
-	return cl_env_hash != NULL ? 0 :-ENOMEM;
-}
-
-static void cl_env_store_fini(void)
-{
-	cfs_hash_putref(cl_env_hash);
-}
-
-
-static inline struct cl_env *cl_env_detach(struct cl_env *cle)
-{
-	if (cle == NULL)
-		cle = cl_env_fetch();
-
-	if (cle && cle->ce_owner)
-		cl_env_do_detach(cle);
-
-	return cle;
-}
-
-static struct lu_env *cl_env_new(__u32 ctx_tags, __u32 ses_tags, void *debug)
-{
-	struct lu_env *env;
-	struct cl_env *cle;
-
-	OBD_SLAB_ALLOC_PTR_GFP(cle, cl_env_kmem, GFP_NOFS);
-	if (cle != NULL) {
-		int rc;
-
-		INIT_LIST_HEAD(&cle->ce_linkage);
-		cle->ce_magic = &cl_env_init0;
-		env = &cle->ce_lu;
-		rc = lu_env_init(env, LCT_CL_THREAD|ctx_tags);
-		if (rc == 0) {
-			rc = lu_context_init(&cle->ce_ses,
-					     LCT_SESSION | ses_tags);
-			if (rc == 0) {
-				lu_context_enter(&cle->ce_ses);
-				env->le_ses = &cle->ce_ses;
-				cl_env_init0(cle, debug);
-			} else
-				lu_env_fini(env);
-		}
-		if (rc != 0) {
-			OBD_SLAB_FREE_PTR(cle, cl_env_kmem);
-			env = ERR_PTR(rc);
-		} else {
-			CL_ENV_INC(create);
-			CL_ENV_INC(total);
-		}
-	} else
-		env = ERR_PTR(-ENOMEM);
-	return env;
-}
-
-static void cl_env_fini(struct cl_env *cle)
-{
-	CL_ENV_DEC(total);
-	lu_context_fini(&cle->ce_lu.le_ctx);
-	lu_context_fini(&cle->ce_ses);
-	OBD_SLAB_FREE_PTR(cle, cl_env_kmem);
-}
-
-static inline struct cl_env *cl_env_container(struct lu_env *env)
-{
-	return container_of(env, struct cl_env, ce_lu);
-}
-
-struct lu_env *cl_env_peek(int *refcheck)
-{
-	struct lu_env *env;
-	struct cl_env *cle;
-
-	CL_ENV_INC(lookup);
-
-	/* check that we don't go far from untrusted pointer */
-	CLASSERT(offsetof(struct cl_env, ce_magic) == 0);
-
-	env = NULL;
-	cle = cl_env_fetch();
-	if (cle != NULL) {
-		CL_ENV_INC(hit);
-		env = &cle->ce_lu;
-		*refcheck = ++cle->ce_ref;
-	}
-	CDEBUG(D_OTHER, "%d@%p\n", cle ? cle->ce_ref : 0, cle);
-	return env;
-}
-EXPORT_SYMBOL(cl_env_peek);
-
-/**
- * Returns lu_env: if there already is an environment associated with the
- * current thread, it is returned, otherwise, new environment is allocated.
- *
- * \param refcheck pointer to a counter used to detect environment leaks. In
- * the usual case cl_env_get() and cl_env_put() are called in the same lexical
- * scope and pointer to the same integer is passed as \a refcheck. This is
- * used to detect missed cl_env_put().
- *
- * \see cl_env_put()
- */
-struct lu_env *cl_env_get(int *refcheck)
-{
-	struct lu_env *env;
-
-	env = cl_env_peek(refcheck);
-	if (env == NULL) {
-		env = cl_env_new(lu_context_tags_default,
-				 lu_session_tags_default,
-				 __builtin_return_address(0));
-
-		if (!IS_ERR(env)) {
-			struct cl_env *cle;
-
-			cle = cl_env_container(env);
-			cl_env_attach(cle);
-			*refcheck = cle->ce_ref;
-			CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle);
-		}
-	}
-	return env;
-}
-EXPORT_SYMBOL(cl_env_get);
-
-/**
- * Forces an allocation of a fresh environment with given tags.
- *
- * \see cl_env_get()
- */
-struct lu_env *cl_env_alloc(int *refcheck, __u32 tags)
-{
-	struct lu_env *env;
-
-	LASSERT(cl_env_peek(refcheck) == NULL);
-	env = cl_env_new(tags, tags, __builtin_return_address(0));
-	if (!IS_ERR(env)) {
-		struct cl_env *cle;
-
-		cle = cl_env_container(env);
-		*refcheck = cle->ce_ref;
-		CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle);
-	}
-	return env;
-}
-EXPORT_SYMBOL(cl_env_alloc);
-
-static void cl_env_exit(struct cl_env *cle)
-{
-	LASSERT(cle->ce_owner == NULL);
-	lu_context_exit(&cle->ce_lu.le_ctx);
-	lu_context_exit(&cle->ce_ses);
-}
-
-/**
- * Release an environment.
- *
- * Decrement \a env reference counter. When counter drops to 0, nothing in
- * this thread is using environment and it is returned to the allocation
- * cache, or freed straight away, if cache is large enough.
- */
-void cl_env_put(struct lu_env *env, int *refcheck)
-{
-	struct cl_env *cle;
-
-	cle = cl_env_container(env);
-
-	LASSERT(cle->ce_ref > 0);
-	LASSERT(ergo(refcheck != NULL, cle->ce_ref == *refcheck));
-
-	CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle);
-	if (--cle->ce_ref == 0) {
-		CL_ENV_DEC(busy);
-		cl_env_detach(cle);
-		cle->ce_debug = NULL;
-		cl_env_exit(cle);
-		cl_env_fini(cle);
-	}
-}
-EXPORT_SYMBOL(cl_env_put);
-
-/**
- * Declares a point of re-entrancy.
- *
- * \see cl_env_reexit()
- */
-void *cl_env_reenter(void)
-{
-	return cl_env_detach(NULL);
-}
-EXPORT_SYMBOL(cl_env_reenter);
-
-/**
- * Exits re-entrancy.
- */
-void cl_env_reexit(void *cookie)
-{
-	cl_env_detach(NULL);
-	cl_env_attach(cookie);
-}
-EXPORT_SYMBOL(cl_env_reexit);
-
-/**
- * Setup user-supplied \a env as a current environment. This is to be used to
- * guaranteed that environment exists even when cl_env_get() fails. It is up
- * to user to ensure proper concurrency control.
- *
- * \see cl_env_unplant()
- */
-void cl_env_implant(struct lu_env *env, int *refcheck)
-{
-	struct cl_env *cle = cl_env_container(env);
-
-	LASSERT(cle->ce_ref > 0);
-
-	cl_env_attach(cle);
-	cl_env_get(refcheck);
-	CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle);
-}
-EXPORT_SYMBOL(cl_env_implant);
-
-/**
- * Detach environment installed earlier by cl_env_implant().
- */
-void cl_env_unplant(struct lu_env *env, int *refcheck)
-{
-	struct cl_env *cle = cl_env_container(env);
-
-	LASSERT(cle->ce_ref > 1);
-
-	CDEBUG(D_OTHER, "%d@%p\n", cle->ce_ref, cle);
-
-	cl_env_detach(cle);
-	cl_env_put(env, refcheck);
-}
-EXPORT_SYMBOL(cl_env_unplant);
-
-struct lu_env *cl_env_nested_get(struct cl_env_nest *nest)
-{
-	struct lu_env *env;
-
-	nest->cen_cookie = NULL;
-	env = cl_env_peek(&nest->cen_refcheck);
-	if (env != NULL) {
-		if (!cl_io_is_going(env))
-			return env;
-		cl_env_put(env, &nest->cen_refcheck);
-		nest->cen_cookie = cl_env_reenter();
-	}
-	env = cl_env_get(&nest->cen_refcheck);
-	if (IS_ERR(env)) {
-		cl_env_reexit(nest->cen_cookie);
-		return env;
-	}
-
-	LASSERT(!cl_io_is_going(env));
-	return env;
-}
-EXPORT_SYMBOL(cl_env_nested_get);
-
-void cl_env_nested_put(struct cl_env_nest *nest, struct lu_env *env)
-{
-	cl_env_put(env, &nest->cen_refcheck);
-	cl_env_reexit(nest->cen_cookie);
-}
-EXPORT_SYMBOL(cl_env_nested_put);
-
-/**
- * Converts struct cl_attr to struct ost_lvb.
- *
- * \see cl_lvb2attr
- */
-void cl_attr2lvb(struct ost_lvb *lvb, const struct cl_attr *attr)
-{
-	lvb->lvb_size   = attr->cat_size;
-	lvb->lvb_mtime  = attr->cat_mtime;
-	lvb->lvb_atime  = attr->cat_atime;
-	lvb->lvb_ctime  = attr->cat_ctime;
-	lvb->lvb_blocks = attr->cat_blocks;
-}
-EXPORT_SYMBOL(cl_attr2lvb);
-
-/**
- * Converts struct ost_lvb to struct cl_attr.
- *
- * \see cl_attr2lvb
- */
-void cl_lvb2attr(struct cl_attr *attr, const struct ost_lvb *lvb)
-{
-	attr->cat_size   = lvb->lvb_size;
-	attr->cat_mtime  = lvb->lvb_mtime;
-	attr->cat_atime  = lvb->lvb_atime;
-	attr->cat_ctime  = lvb->lvb_ctime;
-	attr->cat_blocks = lvb->lvb_blocks;
-}
-EXPORT_SYMBOL(cl_lvb2attr);
-
-/*****************************************************************************
- *
- * Temporary prototype thing: mirror obd-devices into cl devices.
- *
- */
-
-struct cl_device *cl_type_setup(const struct lu_env *env, struct lu_site *site,
-				struct lu_device_type *ldt,
-				struct lu_device *next)
-{
-	const char       *typename;
-	struct lu_device *d;
-
-	LASSERT(ldt != NULL);
-
-	typename = ldt->ldt_name;
-	d = ldt->ldt_ops->ldto_device_alloc(env, ldt, NULL);
-	if (!IS_ERR(d)) {
-		int rc;
-
-		if (site != NULL)
-			d->ld_site = site;
-		rc = ldt->ldt_ops->ldto_device_init(env, d, typename, next);
-		if (rc == 0) {
-			lu_device_get(d);
-			lu_ref_add(&d->ld_reference,
-				   "lu-stack", &lu_site_init);
-		} else {
-			ldt->ldt_ops->ldto_device_free(env, d);
-			CERROR("can't init device '%s', %d\n", typename, rc);
-			d = ERR_PTR(rc);
-		}
-	} else
-		CERROR("Cannot allocate device: '%s'\n", typename);
-	return lu2cl_dev(d);
-}
-EXPORT_SYMBOL(cl_type_setup);
-
-/**
- * Finalize device stack by calling lu_stack_fini().
- */
-void cl_stack_fini(const struct lu_env *env, struct cl_device *cl)
-{
-	lu_stack_fini(env, cl2lu_dev(cl));
-}
-EXPORT_SYMBOL(cl_stack_fini);
-
-int  cl_lock_init(void);
-void cl_lock_fini(void);
-
-int  cl_page_init(void);
-void cl_page_fini(void);
-
-static struct lu_context_key cl_key;
-
-struct cl_thread_info *cl_env_info(const struct lu_env *env)
-{
-	return lu_context_key_get(&env->le_ctx, &cl_key);
-}
-
-/* defines cl0_key_{init,fini}() */
-LU_KEY_INIT_FINI(cl0, struct cl_thread_info);
-
-static void *cl_key_init(const struct lu_context *ctx,
-			 struct lu_context_key *key)
-{
-	struct cl_thread_info *info;
-
-	info = cl0_key_init(ctx, key);
-	if (!IS_ERR(info)) {
-		int i;
-
-		for (i = 0; i < ARRAY_SIZE(info->clt_counters); ++i)
-			lu_ref_init(&info->clt_counters[i].ctc_locks_locked);
-	}
-	return info;
-}
-
-static void cl_key_fini(const struct lu_context *ctx,
-			struct lu_context_key *key, void *data)
-{
-	struct cl_thread_info *info;
-	int i;
-
-	info = data;
-	for (i = 0; i < ARRAY_SIZE(info->clt_counters); ++i)
-		lu_ref_fini(&info->clt_counters[i].ctc_locks_locked);
-	cl0_key_fini(ctx, key, data);
-}
-
-static void cl_key_exit(const struct lu_context *ctx,
-			struct lu_context_key *key, void *data)
-{
-	struct cl_thread_info *info = data;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(info->clt_counters); ++i) {
-		LASSERT(info->clt_counters[i].ctc_nr_held == 0);
-		LASSERT(info->clt_counters[i].ctc_nr_used == 0);
-		LASSERT(info->clt_counters[i].ctc_nr_locks_acquired == 0);
-		LASSERT(info->clt_counters[i].ctc_nr_locks_locked == 0);
-		lu_ref_fini(&info->clt_counters[i].ctc_locks_locked);
-		lu_ref_init(&info->clt_counters[i].ctc_locks_locked);
-	}
-}
-
-static struct lu_context_key cl_key = {
-	.lct_tags = LCT_CL_THREAD,
-	.lct_init = cl_key_init,
-	.lct_fini = cl_key_fini,
-	.lct_exit = cl_key_exit
-};
-
-static struct lu_kmem_descr cl_object_caches[] = {
-	{
-		.ckd_cache = &cl_env_kmem,
-		.ckd_name  = "cl_env_kmem",
-		.ckd_size  = sizeof (struct cl_env)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-/**
- * Global initialization of cl-data. Create kmem caches, register
- * lu_context_key's, etc.
- *
- * \see cl_global_fini()
- */
-int cl_global_init(void)
-{
-	int result;
-
-	result = cl_env_store_init();
-	if (result)
-		return result;
-
-	result = lu_kmem_init(cl_object_caches);
-	if (result)
-		goto out_store;
-
-	LU_CONTEXT_KEY_INIT(&cl_key);
-	result = lu_context_key_register(&cl_key);
-	if (result)
-		goto out_kmem;
-
-	result = cl_lock_init();
-	if (result)
-		goto out_context;
-
-	result = cl_page_init();
-	if (result)
-		goto out_lock;
-
-	return 0;
-out_lock:
-	cl_lock_fini();
-out_context:
-	lu_context_key_degister(&cl_key);
-out_kmem:
-	lu_kmem_fini(cl_object_caches);
-out_store:
-	cl_env_store_fini();
-	return result;
-}
-
-/**
- * Finalization of global cl-data. Dual to cl_global_init().
- */
-void cl_global_fini(void)
-{
-	cl_lock_fini();
-	cl_page_fini();
-	lu_context_key_degister(&cl_key);
-	lu_kmem_fini(cl_object_caches);
-	cl_env_store_fini();
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c
deleted file mode 100644
index d5fb81f84cd4..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/cl_page.c
+++ /dev/null
@@ -1,1535 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Client Lustre Page.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../../include/linux/libcfs/libcfs.h"
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include <linux/list.h>
-
-#include "../include/cl_object.h"
-#include "cl_internal.h"
-
-static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg,
-			    int radix);
-
-# define PASSERT(env, page, expr)					   \
-	do {								   \
-		if (unlikely(!(expr))) {				   \
-			CL_PAGE_DEBUG(D_ERROR, (env), (page), #expr "\n"); \
-			LASSERT(0);					   \
-		}							   \
-	} while (0)
-
-# define PINVRNT(env, page, exp) \
-	((void)sizeof(env), (void)sizeof(page), (void)sizeof !!(exp))
-
-/**
- * Internal version of cl_page_top, it should be called if the page is
- * known to be not freed, says with page referenced, or radix tree lock held,
- * or page owned.
- */
-static struct cl_page *cl_page_top_trusted(struct cl_page *page)
-{
-	while (page->cp_parent != NULL)
-		page = page->cp_parent;
-	return page;
-}
-
-/**
- * Internal version of cl_page_get().
- *
- * This function can be used to obtain initial reference to previously
- * unreferenced cached object. It can be called only if concurrent page
- * reclamation is somehow prevented, e.g., by locking page radix-tree
- * (cl_object_header::hdr->coh_page_guard), or by keeping a lock on a VM page,
- * associated with \a page.
- *
- * Use with care! Not exported.
- */
-static void cl_page_get_trust(struct cl_page *page)
-{
-	LASSERT(atomic_read(&page->cp_ref) > 0);
-	atomic_inc(&page->cp_ref);
-}
-
-/**
- * Returns a slice within a page, corresponding to the given layer in the
- * device stack.
- *
- * \see cl_lock_at()
- */
-static const struct cl_page_slice *
-cl_page_at_trusted(const struct cl_page *page,
-		   const struct lu_device_type *dtype)
-{
-	const struct cl_page_slice *slice;
-
-	page = cl_page_top_trusted((struct cl_page *)page);
-	do {
-		list_for_each_entry(slice, &page->cp_layers, cpl_linkage) {
-			if (slice->cpl_obj->co_lu.lo_dev->ld_type == dtype)
-				return slice;
-		}
-		page = page->cp_child;
-	} while (page != NULL);
-	return NULL;
-}
-
-/**
- * Returns a page with given index in the given object, or NULL if no page is
- * found. Acquires a reference on \a page.
- *
- * Locking: called under cl_object_header::coh_page_guard spin-lock.
- */
-struct cl_page *cl_page_lookup(struct cl_object_header *hdr, pgoff_t index)
-{
-	struct cl_page *page;
-
-	assert_spin_locked(&hdr->coh_page_guard);
-
-	page = radix_tree_lookup(&hdr->coh_tree, index);
-	if (page != NULL)
-		cl_page_get_trust(page);
-	return page;
-}
-EXPORT_SYMBOL(cl_page_lookup);
-
-/**
- * Returns a list of pages by a given [start, end] of \a obj.
- *
- * \param resched If not NULL, then we give up before hogging CPU for too
- * long and set *resched = 1, in that case caller should implement a retry
- * logic.
- *
- * Gang tree lookup (radix_tree_gang_lookup()) optimization is absolutely
- * crucial in the face of [offset, EOF] locks.
- *
- * Return at least one page in @queue unless there is no covered page.
- */
-int cl_page_gang_lookup(const struct lu_env *env, struct cl_object *obj,
-			struct cl_io *io, pgoff_t start, pgoff_t end,
-			cl_page_gang_cb_t cb, void *cbdata)
-{
-	struct cl_object_header *hdr;
-	struct cl_page	  *page;
-	struct cl_page	 **pvec;
-	const struct cl_page_slice  *slice;
-	const struct lu_device_type *dtype;
-	pgoff_t		  idx;
-	unsigned int	     nr;
-	unsigned int	     i;
-	unsigned int	     j;
-	int		      res = CLP_GANG_OKAY;
-	int		      tree_lock = 1;
-
-	idx = start;
-	hdr = cl_object_header(obj);
-	pvec = cl_env_info(env)->clt_pvec;
-	dtype = cl_object_top(obj)->co_lu.lo_dev->ld_type;
-	spin_lock(&hdr->coh_page_guard);
-	while ((nr = radix_tree_gang_lookup(&hdr->coh_tree, (void **)pvec,
-					    idx, CLT_PVEC_SIZE)) > 0) {
-		int end_of_region = 0;
-
-		idx = pvec[nr - 1]->cp_index + 1;
-		for (i = 0, j = 0; i < nr; ++i) {
-			page = pvec[i];
-			pvec[i] = NULL;
-
-			LASSERT(page->cp_type == CPT_CACHEABLE);
-			if (page->cp_index > end) {
-				end_of_region = 1;
-				break;
-			}
-			if (page->cp_state == CPS_FREEING)
-				continue;
-
-			slice = cl_page_at_trusted(page, dtype);
-			/*
-			 * Pages for lsm-less file has no underneath sub-page
-			 * for osc, in case of ...
-			 */
-			PASSERT(env, page, slice != NULL);
-
-			page = slice->cpl_page;
-			/*
-			 * Can safely call cl_page_get_trust() under
-			 * radix-tree spin-lock.
-			 *
-			 * XXX not true, because @page is from object another
-			 * than @hdr and protected by different tree lock.
-			 */
-			cl_page_get_trust(page);
-			lu_ref_add_atomic(&page->cp_reference,
-					  "gang_lookup", current);
-			pvec[j++] = page;
-		}
-
-		/*
-		 * Here a delicate locking dance is performed. Current thread
-		 * holds a reference to a page, but has to own it before it
-		 * can be placed into queue. Owning implies waiting, so
-		 * radix-tree lock is to be released. After a wait one has to
-		 * check that pages weren't truncated (cl_page_own() returns
-		 * error in the latter case).
-		 */
-		spin_unlock(&hdr->coh_page_guard);
-		tree_lock = 0;
-
-		for (i = 0; i < j; ++i) {
-			page = pvec[i];
-			if (res == CLP_GANG_OKAY)
-				res = (*cb)(env, io, page, cbdata);
-			lu_ref_del(&page->cp_reference,
-				   "gang_lookup", current);
-			cl_page_put(env, page);
-		}
-		if (nr < CLT_PVEC_SIZE || end_of_region)
-			break;
-
-		if (res == CLP_GANG_OKAY && need_resched())
-			res = CLP_GANG_RESCHED;
-		if (res != CLP_GANG_OKAY)
-			break;
-
-		spin_lock(&hdr->coh_page_guard);
-		tree_lock = 1;
-	}
-	if (tree_lock)
-		spin_unlock(&hdr->coh_page_guard);
-	return res;
-}
-EXPORT_SYMBOL(cl_page_gang_lookup);
-
-static void cl_page_free(const struct lu_env *env, struct cl_page *page)
-{
-	struct cl_object *obj  = page->cp_obj;
-
-	PASSERT(env, page, list_empty(&page->cp_batch));
-	PASSERT(env, page, page->cp_owner == NULL);
-	PASSERT(env, page, page->cp_req == NULL);
-	PASSERT(env, page, page->cp_parent == NULL);
-	PASSERT(env, page, page->cp_state == CPS_FREEING);
-
-	might_sleep();
-	while (!list_empty(&page->cp_layers)) {
-		struct cl_page_slice *slice;
-
-		slice = list_entry(page->cp_layers.next,
-				       struct cl_page_slice, cpl_linkage);
-		list_del_init(page->cp_layers.next);
-		slice->cpl_ops->cpo_fini(env, slice);
-	}
-	lu_object_ref_del_at(&obj->co_lu, &page->cp_obj_ref, "cl_page", page);
-	cl_object_put(env, obj);
-	lu_ref_fini(&page->cp_reference);
-	kfree(page);
-}
-
-/**
- * Helper function updating page state. This is the only place in the code
- * where cl_page::cp_state field is mutated.
- */
-static inline void cl_page_state_set_trust(struct cl_page *page,
-					   enum cl_page_state state)
-{
-	/* bypass const. */
-	*(enum cl_page_state *)&page->cp_state = state;
-}
-
-static struct cl_page *cl_page_alloc(const struct lu_env *env,
-		struct cl_object *o, pgoff_t ind, struct page *vmpage,
-		enum cl_page_type type)
-{
-	struct cl_page	  *page;
-	struct lu_object_header *head;
-
-	OBD_ALLOC_GFP(page, cl_object_header(o)->coh_page_bufsize,
-			GFP_NOFS);
-	if (page != NULL) {
-		int result = 0;
-
-		atomic_set(&page->cp_ref, 1);
-		if (type == CPT_CACHEABLE) /* for radix tree */
-			atomic_inc(&page->cp_ref);
-		page->cp_obj = o;
-		cl_object_get(o);
-		lu_object_ref_add_at(&o->co_lu, &page->cp_obj_ref, "cl_page",
-				     page);
-		page->cp_index = ind;
-		cl_page_state_set_trust(page, CPS_CACHED);
-		page->cp_type = type;
-		INIT_LIST_HEAD(&page->cp_layers);
-		INIT_LIST_HEAD(&page->cp_batch);
-		INIT_LIST_HEAD(&page->cp_flight);
-		mutex_init(&page->cp_mutex);
-		lu_ref_init(&page->cp_reference);
-		head = o->co_lu.lo_header;
-		list_for_each_entry(o, &head->loh_layers,
-					co_lu.lo_linkage) {
-			if (o->co_ops->coo_page_init != NULL) {
-				result = o->co_ops->coo_page_init(env, o,
-								  page, vmpage);
-				if (result != 0) {
-					cl_page_delete0(env, page, 0);
-					cl_page_free(env, page);
-					page = ERR_PTR(result);
-					break;
-				}
-			}
-		}
-	} else {
-		page = ERR_PTR(-ENOMEM);
-	}
-	return page;
-}
-
-/**
- * Returns a cl_page with index \a idx at the object \a o, and associated with
- * the VM page \a vmpage.
- *
- * This is the main entry point into the cl_page caching interface. First, a
- * cache (implemented as a per-object radix tree) is consulted. If page is
- * found there, it is returned immediately. Otherwise new page is allocated
- * and returned. In any case, additional reference to page is acquired.
- *
- * \see cl_object_find(), cl_lock_find()
- */
-static struct cl_page *cl_page_find0(const struct lu_env *env,
-				     struct cl_object *o,
-				     pgoff_t idx, struct page *vmpage,
-				     enum cl_page_type type,
-				     struct cl_page *parent)
-{
-	struct cl_page	  *page = NULL;
-	struct cl_page	  *ghost = NULL;
-	struct cl_object_header *hdr;
-	int err;
-
-	LASSERT(type == CPT_CACHEABLE || type == CPT_TRANSIENT);
-	might_sleep();
-
-	hdr = cl_object_header(o);
-
-	CDEBUG(D_PAGE, "%lu@"DFID" %p %lx %d\n",
-	       idx, PFID(&hdr->coh_lu.loh_fid), vmpage, vmpage->private, type);
-	/* fast path. */
-	if (type == CPT_CACHEABLE) {
-		/*
-		 * vmpage lock is used to protect the child/parent
-		 * relationship
-		 */
-		KLASSERT(PageLocked(vmpage));
-		/*
-		 * cl_vmpage_page() can be called here without any locks as
-		 *
-		 *     - "vmpage" is locked (which prevents ->private from
-		 *       concurrent updates), and
-		 *
-		 *     - "o" cannot be destroyed while current thread holds a
-		 *       reference on it.
-		 */
-		page = cl_vmpage_page(vmpage, o);
-		PINVRNT(env, page,
-			ergo(page != NULL,
-			     cl_page_vmpage(env, page) == vmpage &&
-			     (void *)radix_tree_lookup(&hdr->coh_tree,
-						       idx) == page));
-	}
-
-	if (page != NULL)
-		return page;
-
-	/* allocate and initialize cl_page */
-	page = cl_page_alloc(env, o, idx, vmpage, type);
-	if (IS_ERR(page))
-		return page;
-
-	if (type == CPT_TRANSIENT) {
-		if (parent) {
-			LASSERT(page->cp_parent == NULL);
-			page->cp_parent = parent;
-			parent->cp_child = page;
-		}
-		return page;
-	}
-
-	/*
-	 * XXX optimization: use radix_tree_preload() here, and change tree
-	 * gfp mask to GFP_KERNEL in cl_object_header_init().
-	 */
-	spin_lock(&hdr->coh_page_guard);
-	err = radix_tree_insert(&hdr->coh_tree, idx, page);
-	if (err != 0) {
-		ghost = page;
-		/*
-		 * Noted by Jay: a lock on \a vmpage protects cl_page_find()
-		 * from this race, but
-		 *
-		 *     0. it's better to have cl_page interface "locally
-		 *     consistent" so that its correctness can be reasoned
-		 *     about without appealing to the (obscure world of) VM
-		 *     locking.
-		 *
-		 *     1. handling this race allows ->coh_tree to remain
-		 *     consistent even when VM locking is somehow busted,
-		 *     which is very useful during diagnosing and debugging.
-		 */
-		page = ERR_PTR(err);
-		CL_PAGE_DEBUG(D_ERROR, env, ghost,
-			      "fail to insert into radix tree: %d\n", err);
-	} else {
-		if (parent) {
-			LASSERT(page->cp_parent == NULL);
-			page->cp_parent = parent;
-			parent->cp_child = page;
-		}
-		hdr->coh_pages++;
-	}
-	spin_unlock(&hdr->coh_page_guard);
-
-	if (unlikely(ghost != NULL)) {
-		cl_page_delete0(env, ghost, 0);
-		cl_page_free(env, ghost);
-	}
-	return page;
-}
-
-struct cl_page *cl_page_find(const struct lu_env *env, struct cl_object *o,
-			     pgoff_t idx, struct page *vmpage,
-			     enum cl_page_type type)
-{
-	return cl_page_find0(env, o, idx, vmpage, type, NULL);
-}
-EXPORT_SYMBOL(cl_page_find);
-
-
-struct cl_page *cl_page_find_sub(const struct lu_env *env, struct cl_object *o,
-				 pgoff_t idx, struct page *vmpage,
-				 struct cl_page *parent)
-{
-	return cl_page_find0(env, o, idx, vmpage, parent->cp_type, parent);
-}
-EXPORT_SYMBOL(cl_page_find_sub);
-
-static inline int cl_page_invariant(const struct cl_page *pg)
-{
-	struct cl_object_header *header;
-	struct cl_page	  *parent;
-	struct cl_page	  *child;
-	struct cl_io	    *owner;
-
-	/*
-	 * Page invariant is protected by a VM lock.
-	 */
-	LINVRNT(cl_page_is_vmlocked(NULL, pg));
-
-	header = cl_object_header(pg->cp_obj);
-	parent = pg->cp_parent;
-	child  = pg->cp_child;
-	owner  = pg->cp_owner;
-
-	return cl_page_in_use(pg) &&
-		ergo(parent != NULL, parent->cp_child == pg) &&
-		ergo(child != NULL, child->cp_parent == pg) &&
-		ergo(child != NULL, pg->cp_obj != child->cp_obj) &&
-		ergo(parent != NULL, pg->cp_obj != parent->cp_obj) &&
-		ergo(owner != NULL && parent != NULL,
-		     parent->cp_owner == pg->cp_owner->ci_parent) &&
-		ergo(owner != NULL && child != NULL,
-		     child->cp_owner->ci_parent == owner) &&
-		/*
-		 * Either page is early in initialization (has neither child
-		 * nor parent yet), or it is in the object radix tree.
-		 */
-		ergo(pg->cp_state < CPS_FREEING && pg->cp_type == CPT_CACHEABLE,
-		     (void *)radix_tree_lookup(&header->coh_tree,
-					       pg->cp_index) == pg ||
-		     (child == NULL && parent == NULL));
-}
-
-static void cl_page_state_set0(const struct lu_env *env,
-			       struct cl_page *page, enum cl_page_state state)
-{
-	enum cl_page_state old;
-
-	/*
-	 * Matrix of allowed state transitions [old][new], for sanity
-	 * checking.
-	 */
-	static const int allowed_transitions[CPS_NR][CPS_NR] = {
-		[CPS_CACHED] = {
-			[CPS_CACHED]  = 0,
-			[CPS_OWNED]   = 1, /* io finds existing cached page */
-			[CPS_PAGEIN]  = 0,
-			[CPS_PAGEOUT] = 1, /* write-out from the cache */
-			[CPS_FREEING] = 1, /* eviction on the memory pressure */
-		},
-		[CPS_OWNED] = {
-			[CPS_CACHED]  = 1, /* release to the cache */
-			[CPS_OWNED]   = 0,
-			[CPS_PAGEIN]  = 1, /* start read immediately */
-			[CPS_PAGEOUT] = 1, /* start write immediately */
-			[CPS_FREEING] = 1, /* lock invalidation or truncate */
-		},
-		[CPS_PAGEIN] = {
-			[CPS_CACHED]  = 1, /* io completion */
-			[CPS_OWNED]   = 0,
-			[CPS_PAGEIN]  = 0,
-			[CPS_PAGEOUT] = 0,
-			[CPS_FREEING] = 0,
-		},
-		[CPS_PAGEOUT] = {
-			[CPS_CACHED]  = 1, /* io completion */
-			[CPS_OWNED]   = 0,
-			[CPS_PAGEIN]  = 0,
-			[CPS_PAGEOUT] = 0,
-			[CPS_FREEING] = 0,
-		},
-		[CPS_FREEING] = {
-			[CPS_CACHED]  = 0,
-			[CPS_OWNED]   = 0,
-			[CPS_PAGEIN]  = 0,
-			[CPS_PAGEOUT] = 0,
-			[CPS_FREEING] = 0,
-		}
-	};
-
-	old = page->cp_state;
-	PASSERT(env, page, allowed_transitions[old][state]);
-	CL_PAGE_HEADER(D_TRACE, env, page, "%d -> %d\n", old, state);
-	for (; page != NULL; page = page->cp_child) {
-		PASSERT(env, page, page->cp_state == old);
-		PASSERT(env, page,
-			equi(state == CPS_OWNED, page->cp_owner != NULL));
-
-		cl_page_state_set_trust(page, state);
-	}
-}
-
-static void cl_page_state_set(const struct lu_env *env,
-			      struct cl_page *page, enum cl_page_state state)
-{
-	cl_page_state_set0(env, page, state);
-}
-
-/**
- * Acquires an additional reference to a page.
- *
- * This can be called only by caller already possessing a reference to \a
- * page.
- *
- * \see cl_object_get(), cl_lock_get().
- */
-void cl_page_get(struct cl_page *page)
-{
-	cl_page_get_trust(page);
-}
-EXPORT_SYMBOL(cl_page_get);
-
-/**
- * Releases a reference to a page.
- *
- * When last reference is released, page is returned to the cache, unless it
- * is in cl_page_state::CPS_FREEING state, in which case it is immediately
- * destroyed.
- *
- * \see cl_object_put(), cl_lock_put().
- */
-void cl_page_put(const struct lu_env *env, struct cl_page *page)
-{
-	PASSERT(env, page, atomic_read(&page->cp_ref) > !!page->cp_parent);
-
-	CL_PAGE_HEADER(D_TRACE, env, page, "%d\n",
-		       atomic_read(&page->cp_ref));
-
-	if (atomic_dec_and_test(&page->cp_ref)) {
-		LASSERT(page->cp_state == CPS_FREEING);
-
-		LASSERT(atomic_read(&page->cp_ref) == 0);
-		PASSERT(env, page, page->cp_owner == NULL);
-		PASSERT(env, page, list_empty(&page->cp_batch));
-		/*
-		 * Page is no longer reachable by other threads. Tear
-		 * it down.
-		 */
-		cl_page_free(env, page);
-	}
-}
-EXPORT_SYMBOL(cl_page_put);
-
-/**
- * Returns a VM page associated with a given cl_page.
- */
-struct page *cl_page_vmpage(const struct lu_env *env, struct cl_page *page)
-{
-	const struct cl_page_slice *slice;
-
-	/*
-	 * Find uppermost layer with ->cpo_vmpage() method, and return its
-	 * result.
-	 */
-	page = cl_page_top(page);
-	do {
-		list_for_each_entry(slice, &page->cp_layers, cpl_linkage) {
-			if (slice->cpl_ops->cpo_vmpage != NULL)
-				return slice->cpl_ops->cpo_vmpage(env, slice);
-		}
-		page = page->cp_child;
-	} while (page != NULL);
-	LBUG(); /* ->cpo_vmpage() has to be defined somewhere in the stack */
-}
-EXPORT_SYMBOL(cl_page_vmpage);
-
-/**
- * Returns a cl_page associated with a VM page, and given cl_object.
- */
-struct cl_page *cl_vmpage_page(struct page *vmpage, struct cl_object *obj)
-{
-	struct cl_page *top;
-	struct cl_page *page;
-
-	KLASSERT(PageLocked(vmpage));
-
-	/*
-	 * NOTE: absence of races and liveness of data are guaranteed by page
-	 *       lock on a "vmpage". That works because object destruction has
-	 *       bottom-to-top pass.
-	 */
-
-	/*
-	 * This loop assumes that ->private points to the top-most page. This
-	 * can be rectified easily.
-	 */
-	top = (struct cl_page *)vmpage->private;
-	if (top == NULL)
-		return NULL;
-
-	for (page = top; page != NULL; page = page->cp_child) {
-		if (cl_object_same(page->cp_obj, obj)) {
-			cl_page_get_trust(page);
-			break;
-		}
-	}
-	LASSERT(ergo(page, page->cp_type == CPT_CACHEABLE));
-	return page;
-}
-EXPORT_SYMBOL(cl_vmpage_page);
-
-/**
- * Returns the top-page for a given page.
- *
- * \see cl_object_top(), cl_io_top()
- */
-struct cl_page *cl_page_top(struct cl_page *page)
-{
-	return cl_page_top_trusted(page);
-}
-EXPORT_SYMBOL(cl_page_top);
-
-const struct cl_page_slice *cl_page_at(const struct cl_page *page,
-				       const struct lu_device_type *dtype)
-{
-	return cl_page_at_trusted(page, dtype);
-}
-EXPORT_SYMBOL(cl_page_at);
-
-#define CL_PAGE_OP(opname) offsetof(struct cl_page_operations, opname)
-
-#define CL_PAGE_INVOKE(_env, _page, _op, _proto, ...)		   \
-({								      \
-	const struct lu_env	*__env  = (_env);		    \
-	struct cl_page	     *__page = (_page);		   \
-	const struct cl_page_slice *__scan;			     \
-	int			 __result;			   \
-	ptrdiff_t		   __op   = (_op);		     \
-	int		       (*__method)_proto;		    \
-									\
-	__result = 0;						   \
-	__page = cl_page_top(__page);				   \
-	do {							    \
-		list_for_each_entry(__scan, &__page->cp_layers,     \
-					cpl_linkage) {		  \
-			__method = *(void **)((char *)__scan->cpl_ops + \
-					      __op);		    \
-			if (__method != NULL) {			 \
-				__result = (*__method)(__env, __scan,   \
-						       ## __VA_ARGS__); \
-				if (__result != 0)		      \
-					break;			  \
-			}					       \
-		}						       \
-		__page = __page->cp_child;			      \
-	} while (__page != NULL && __result == 0);		      \
-	if (__result > 0)					       \
-		__result = 0;					   \
-	__result;						       \
-})
-
-#define CL_PAGE_INVOID(_env, _page, _op, _proto, ...)		   \
-do {								    \
-	const struct lu_env	*__env  = (_env);		    \
-	struct cl_page	     *__page = (_page);		   \
-	const struct cl_page_slice *__scan;			     \
-	ptrdiff_t		   __op   = (_op);		     \
-	void		      (*__method)_proto;		    \
-									\
-	__page = cl_page_top(__page);				   \
-	do {							    \
-		list_for_each_entry(__scan, &__page->cp_layers,     \
-					cpl_linkage) {		  \
-			__method = *(void **)((char *)__scan->cpl_ops + \
-					      __op);		    \
-			if (__method != NULL)			   \
-				(*__method)(__env, __scan,	      \
-					    ## __VA_ARGS__);	    \
-		}						       \
-		__page = __page->cp_child;			      \
-	} while (__page != NULL);				       \
-} while (0)
-
-#define CL_PAGE_INVOID_REVERSE(_env, _page, _op, _proto, ...)	       \
-do {									\
-	const struct lu_env	*__env  = (_env);			\
-	struct cl_page	     *__page = (_page);		       \
-	const struct cl_page_slice *__scan;				 \
-	ptrdiff_t		   __op   = (_op);			 \
-	void		      (*__method)_proto;			\
-									    \
-	/* get to the bottom page. */				       \
-	while (__page->cp_child != NULL)				    \
-		__page = __page->cp_child;				  \
-	do {								\
-		list_for_each_entry_reverse(__scan, &__page->cp_layers, \
-						cpl_linkage) {	      \
-			__method = *(void **)((char *)__scan->cpl_ops +     \
-					      __op);			\
-			if (__method != NULL)			       \
-				(*__method)(__env, __scan,		  \
-					    ## __VA_ARGS__);		\
-		}							   \
-		__page = __page->cp_parent;				 \
-	} while (__page != NULL);					   \
-} while (0)
-
-static int cl_page_invoke(const struct lu_env *env,
-			  struct cl_io *io, struct cl_page *page, ptrdiff_t op)
-
-{
-	PINVRNT(env, page, cl_object_same(page->cp_obj, io->ci_obj));
-	return CL_PAGE_INVOKE(env, page, op,
-			      (const struct lu_env *,
-			       const struct cl_page_slice *, struct cl_io *),
-			      io);
-}
-
-static void cl_page_invoid(const struct lu_env *env,
-			   struct cl_io *io, struct cl_page *page, ptrdiff_t op)
-
-{
-	PINVRNT(env, page, cl_object_same(page->cp_obj, io->ci_obj));
-	CL_PAGE_INVOID(env, page, op,
-		       (const struct lu_env *,
-			const struct cl_page_slice *, struct cl_io *), io);
-}
-
-static void cl_page_owner_clear(struct cl_page *page)
-{
-	for (page = cl_page_top(page); page != NULL; page = page->cp_child) {
-		if (page->cp_owner != NULL) {
-			LASSERT(page->cp_owner->ci_owned_nr > 0);
-			page->cp_owner->ci_owned_nr--;
-			page->cp_owner = NULL;
-			page->cp_task = NULL;
-		}
-	}
-}
-
-static void cl_page_owner_set(struct cl_page *page)
-{
-	for (page = cl_page_top(page); page != NULL; page = page->cp_child) {
-		LASSERT(page->cp_owner != NULL);
-		page->cp_owner->ci_owned_nr++;
-	}
-}
-
-void cl_page_disown0(const struct lu_env *env,
-		     struct cl_io *io, struct cl_page *pg)
-{
-	enum cl_page_state state;
-
-	state = pg->cp_state;
-	PINVRNT(env, pg, state == CPS_OWNED || state == CPS_FREEING);
-	PINVRNT(env, pg, cl_page_invariant(pg));
-	cl_page_owner_clear(pg);
-
-	if (state == CPS_OWNED)
-		cl_page_state_set(env, pg, CPS_CACHED);
-	/*
-	 * Completion call-backs are executed in the bottom-up order, so that
-	 * uppermost layer (llite), responsible for VFS/VM interaction runs
-	 * last and can release locks safely.
-	 */
-	CL_PAGE_INVOID_REVERSE(env, pg, CL_PAGE_OP(cpo_disown),
-			       (const struct lu_env *,
-				const struct cl_page_slice *, struct cl_io *),
-			       io);
-}
-
-/**
- * returns true, iff page is owned by the given io.
- */
-int cl_page_is_owned(const struct cl_page *pg, const struct cl_io *io)
-{
-	LINVRNT(cl_object_same(pg->cp_obj, io->ci_obj));
-	return pg->cp_state == CPS_OWNED && pg->cp_owner == io;
-}
-EXPORT_SYMBOL(cl_page_is_owned);
-
-/**
- * Try to own a page by IO.
- *
- * Waits until page is in cl_page_state::CPS_CACHED state, and then switch it
- * into cl_page_state::CPS_OWNED state.
- *
- * \pre  !cl_page_is_owned(pg, io)
- * \post result == 0 iff cl_page_is_owned(pg, io)
- *
- * \retval 0   success
- *
- * \retval -ve failure, e.g., page was destroyed (and landed in
- *	     cl_page_state::CPS_FREEING instead of cl_page_state::CPS_CACHED).
- *	     or, page was owned by another thread, or in IO.
- *
- * \see cl_page_disown()
- * \see cl_page_operations::cpo_own()
- * \see cl_page_own_try()
- * \see cl_page_own
- */
-static int cl_page_own0(const struct lu_env *env, struct cl_io *io,
-			struct cl_page *pg, int nonblock)
-{
-	int result;
-
-	PINVRNT(env, pg, !cl_page_is_owned(pg, io));
-
-	pg = cl_page_top(pg);
-	io = cl_io_top(io);
-
-	if (pg->cp_state == CPS_FREEING) {
-		result = -ENOENT;
-	} else {
-		result = CL_PAGE_INVOKE(env, pg, CL_PAGE_OP(cpo_own),
-					(const struct lu_env *,
-					 const struct cl_page_slice *,
-					 struct cl_io *, int),
-					io, nonblock);
-		if (result == 0) {
-			PASSERT(env, pg, pg->cp_owner == NULL);
-			PASSERT(env, pg, pg->cp_req == NULL);
-			pg->cp_owner = io;
-			pg->cp_task  = current;
-			cl_page_owner_set(pg);
-			if (pg->cp_state != CPS_FREEING) {
-				cl_page_state_set(env, pg, CPS_OWNED);
-			} else {
-				cl_page_disown0(env, io, pg);
-				result = -ENOENT;
-			}
-		}
-	}
-	PINVRNT(env, pg, ergo(result == 0, cl_page_invariant(pg)));
-	return result;
-}
-
-/**
- * Own a page, might be blocked.
- *
- * \see cl_page_own0()
- */
-int cl_page_own(const struct lu_env *env, struct cl_io *io, struct cl_page *pg)
-{
-	return cl_page_own0(env, io, pg, 0);
-}
-EXPORT_SYMBOL(cl_page_own);
-
-/**
- * Nonblock version of cl_page_own().
- *
- * \see cl_page_own0()
- */
-int cl_page_own_try(const struct lu_env *env, struct cl_io *io,
-		    struct cl_page *pg)
-{
-	return cl_page_own0(env, io, pg, 1);
-}
-EXPORT_SYMBOL(cl_page_own_try);
-
-
-/**
- * Assume page ownership.
- *
- * Called when page is already locked by the hosting VM.
- *
- * \pre !cl_page_is_owned(pg, io)
- * \post cl_page_is_owned(pg, io)
- *
- * \see cl_page_operations::cpo_assume()
- */
-void cl_page_assume(const struct lu_env *env,
-		    struct cl_io *io, struct cl_page *pg)
-{
-	PINVRNT(env, pg, cl_object_same(pg->cp_obj, io->ci_obj));
-
-	pg = cl_page_top(pg);
-	io = cl_io_top(io);
-
-	cl_page_invoid(env, io, pg, CL_PAGE_OP(cpo_assume));
-	PASSERT(env, pg, pg->cp_owner == NULL);
-	pg->cp_owner = io;
-	pg->cp_task = current;
-	cl_page_owner_set(pg);
-	cl_page_state_set(env, pg, CPS_OWNED);
-}
-EXPORT_SYMBOL(cl_page_assume);
-
-/**
- * Releases page ownership without unlocking the page.
- *
- * Moves page into cl_page_state::CPS_CACHED without releasing a lock on the
- * underlying VM page (as VM is supposed to do this itself).
- *
- * \pre   cl_page_is_owned(pg, io)
- * \post !cl_page_is_owned(pg, io)
- *
- * \see cl_page_assume()
- */
-void cl_page_unassume(const struct lu_env *env,
-		      struct cl_io *io, struct cl_page *pg)
-{
-	PINVRNT(env, pg, cl_page_is_owned(pg, io));
-	PINVRNT(env, pg, cl_page_invariant(pg));
-
-	pg = cl_page_top(pg);
-	io = cl_io_top(io);
-	cl_page_owner_clear(pg);
-	cl_page_state_set(env, pg, CPS_CACHED);
-	CL_PAGE_INVOID_REVERSE(env, pg, CL_PAGE_OP(cpo_unassume),
-			       (const struct lu_env *,
-				const struct cl_page_slice *, struct cl_io *),
-			       io);
-}
-EXPORT_SYMBOL(cl_page_unassume);
-
-/**
- * Releases page ownership.
- *
- * Moves page into cl_page_state::CPS_CACHED.
- *
- * \pre   cl_page_is_owned(pg, io)
- * \post !cl_page_is_owned(pg, io)
- *
- * \see cl_page_own()
- * \see cl_page_operations::cpo_disown()
- */
-void cl_page_disown(const struct lu_env *env,
-		    struct cl_io *io, struct cl_page *pg)
-{
-	PINVRNT(env, pg, cl_page_is_owned(pg, io));
-
-	pg = cl_page_top(pg);
-	io = cl_io_top(io);
-	cl_page_disown0(env, io, pg);
-}
-EXPORT_SYMBOL(cl_page_disown);
-
-/**
- * Called when page is to be removed from the object, e.g., as a result of
- * truncate.
- *
- * Calls cl_page_operations::cpo_discard() top-to-bottom.
- *
- * \pre cl_page_is_owned(pg, io)
- *
- * \see cl_page_operations::cpo_discard()
- */
-void cl_page_discard(const struct lu_env *env,
-		     struct cl_io *io, struct cl_page *pg)
-{
-	PINVRNT(env, pg, cl_page_is_owned(pg, io));
-	PINVRNT(env, pg, cl_page_invariant(pg));
-
-	cl_page_invoid(env, io, pg, CL_PAGE_OP(cpo_discard));
-}
-EXPORT_SYMBOL(cl_page_discard);
-
-/**
- * Version of cl_page_delete() that can be called for not fully constructed
- * pages, e.g,. in a error handling cl_page_find()->cl_page_delete0()
- * path. Doesn't check page invariant.
- */
-static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg,
-			    int radix)
-{
-	struct cl_page *tmp = pg;
-
-	PASSERT(env, pg, pg == cl_page_top(pg));
-	PASSERT(env, pg, pg->cp_state != CPS_FREEING);
-
-	/*
-	 * Severe all ways to obtain new pointers to @pg.
-	 */
-	cl_page_owner_clear(pg);
-
-	/*
-	 * unexport the page firstly before freeing it so that
-	 * the page content is considered to be invalid.
-	 * We have to do this because a CPS_FREEING cl_page may
-	 * be NOT under the protection of a cl_lock.
-	 * Afterwards, if this page is found by other threads, then this
-	 * page will be forced to reread.
-	 */
-	cl_page_export(env, pg, 0);
-	cl_page_state_set0(env, pg, CPS_FREEING);
-
-	CL_PAGE_INVOID(env, pg, CL_PAGE_OP(cpo_delete),
-		       (const struct lu_env *, const struct cl_page_slice *));
-
-	if (tmp->cp_type == CPT_CACHEABLE) {
-		if (!radix)
-			/* !radix means that @pg is not yet in the radix tree,
-			 * skip removing it.
-			 */
-			tmp = pg->cp_child;
-		for (; tmp != NULL; tmp = tmp->cp_child) {
-			void		    *value;
-			struct cl_object_header *hdr;
-
-			hdr = cl_object_header(tmp->cp_obj);
-			spin_lock(&hdr->coh_page_guard);
-			value = radix_tree_delete(&hdr->coh_tree,
-						  tmp->cp_index);
-			PASSERT(env, tmp, value == tmp);
-			PASSERT(env, tmp, hdr->coh_pages > 0);
-			hdr->coh_pages--;
-			spin_unlock(&hdr->coh_page_guard);
-			cl_page_put(env, tmp);
-		}
-	}
-}
-
-/**
- * Called when a decision is made to throw page out of memory.
- *
- * Notifies all layers about page destruction by calling
- * cl_page_operations::cpo_delete() method top-to-bottom.
- *
- * Moves page into cl_page_state::CPS_FREEING state (this is the only place
- * where transition to this state happens).
- *
- * Eliminates all venues through which new references to the page can be
- * obtained:
- *
- *     - removes page from the radix trees,
- *
- *     - breaks linkage from VM page to cl_page.
- *
- * Once page reaches cl_page_state::CPS_FREEING, all remaining references will
- * drain after some time, at which point page will be recycled.
- *
- * \pre  pg == cl_page_top(pg)
- * \pre  VM page is locked
- * \post pg->cp_state == CPS_FREEING
- *
- * \see cl_page_operations::cpo_delete()
- */
-void cl_page_delete(const struct lu_env *env, struct cl_page *pg)
-{
-	PINVRNT(env, pg, cl_page_invariant(pg));
-	cl_page_delete0(env, pg, 1);
-}
-EXPORT_SYMBOL(cl_page_delete);
-
-/**
- * Unmaps page from user virtual memory.
- *
- * Calls cl_page_operations::cpo_unmap() through all layers top-to-bottom. The
- * layer responsible for VM interaction has to unmap page from user space
- * virtual memory.
- *
- * \see cl_page_operations::cpo_unmap()
- */
-int cl_page_unmap(const struct lu_env *env,
-		  struct cl_io *io, struct cl_page *pg)
-{
-	PINVRNT(env, pg, cl_page_is_owned(pg, io));
-	PINVRNT(env, pg, cl_page_invariant(pg));
-
-	return cl_page_invoke(env, io, pg, CL_PAGE_OP(cpo_unmap));
-}
-EXPORT_SYMBOL(cl_page_unmap);
-
-/**
- * Marks page up-to-date.
- *
- * Call cl_page_operations::cpo_export() through all layers top-to-bottom. The
- * layer responsible for VM interaction has to mark/clear page as up-to-date
- * by the \a uptodate argument.
- *
- * \see cl_page_operations::cpo_export()
- */
-void cl_page_export(const struct lu_env *env, struct cl_page *pg, int uptodate)
-{
-	PINVRNT(env, pg, cl_page_invariant(pg));
-	CL_PAGE_INVOID(env, pg, CL_PAGE_OP(cpo_export),
-		       (const struct lu_env *,
-			const struct cl_page_slice *, int), uptodate);
-}
-EXPORT_SYMBOL(cl_page_export);
-
-/**
- * Returns true, iff \a pg is VM locked in a suitable sense by the calling
- * thread.
- */
-int cl_page_is_vmlocked(const struct lu_env *env, const struct cl_page *pg)
-{
-	int result;
-	const struct cl_page_slice *slice;
-
-	pg = cl_page_top_trusted((struct cl_page *)pg);
-	slice = container_of(pg->cp_layers.next,
-			     const struct cl_page_slice, cpl_linkage);
-	PASSERT(env, pg, slice->cpl_ops->cpo_is_vmlocked != NULL);
-	/*
-	 * Call ->cpo_is_vmlocked() directly instead of going through
-	 * CL_PAGE_INVOKE(), because cl_page_is_vmlocked() is used by
-	 * cl_page_invariant().
-	 */
-	result = slice->cpl_ops->cpo_is_vmlocked(env, slice);
-	PASSERT(env, pg, result == -EBUSY || result == -ENODATA);
-	return result == -EBUSY;
-}
-EXPORT_SYMBOL(cl_page_is_vmlocked);
-
-static enum cl_page_state cl_req_type_state(enum cl_req_type crt)
-{
-	return crt == CRT_WRITE ? CPS_PAGEOUT : CPS_PAGEIN;
-}
-
-static void cl_page_io_start(const struct lu_env *env,
-			     struct cl_page *pg, enum cl_req_type crt)
-{
-	/*
-	 * Page is queued for IO, change its state.
-	 */
-	cl_page_owner_clear(pg);
-	cl_page_state_set(env, pg, cl_req_type_state(crt));
-}
-
-/**
- * Prepares page for immediate transfer. cl_page_operations::cpo_prep() is
- * called top-to-bottom. Every layer either agrees to submit this page (by
- * returning 0), or requests to omit this page (by returning -EALREADY). Layer
- * handling interactions with the VM also has to inform VM that page is under
- * transfer now.
- */
-int cl_page_prep(const struct lu_env *env, struct cl_io *io,
-		 struct cl_page *pg, enum cl_req_type crt)
-{
-	int result;
-
-	PINVRNT(env, pg, cl_page_is_owned(pg, io));
-	PINVRNT(env, pg, cl_page_invariant(pg));
-	PINVRNT(env, pg, crt < CRT_NR);
-
-	/*
-	 * XXX this has to be called bottom-to-top, so that llite can set up
-	 * PG_writeback without risking other layers deciding to skip this
-	 * page.
-	 */
-	if (crt >= CRT_NR)
-		return -EINVAL;
-	result = cl_page_invoke(env, io, pg, CL_PAGE_OP(io[crt].cpo_prep));
-	if (result == 0)
-		cl_page_io_start(env, pg, crt);
-
-	CL_PAGE_HEADER(D_TRACE, env, pg, "%d %d\n", crt, result);
-	return result;
-}
-EXPORT_SYMBOL(cl_page_prep);
-
-/**
- * Notify layers about transfer completion.
- *
- * Invoked by transfer sub-system (which is a part of osc) to notify layers
- * that a transfer, of which this page is a part of has completed.
- *
- * Completion call-backs are executed in the bottom-up order, so that
- * uppermost layer (llite), responsible for the VFS/VM interaction runs last
- * and can release locks safely.
- *
- * \pre  pg->cp_state == CPS_PAGEIN || pg->cp_state == CPS_PAGEOUT
- * \post pg->cp_state == CPS_CACHED
- *
- * \see cl_page_operations::cpo_completion()
- */
-void cl_page_completion(const struct lu_env *env,
-			struct cl_page *pg, enum cl_req_type crt, int ioret)
-{
-	struct cl_sync_io *anchor = pg->cp_sync_io;
-
-	PASSERT(env, pg, crt < CRT_NR);
-	/* cl_page::cp_req already cleared by the caller (osc_completion()) */
-	PASSERT(env, pg, pg->cp_req == NULL);
-	PASSERT(env, pg, pg->cp_state == cl_req_type_state(crt));
-
-	CL_PAGE_HEADER(D_TRACE, env, pg, "%d %d\n", crt, ioret);
-	if (crt == CRT_READ && ioret == 0) {
-		PASSERT(env, pg, !(pg->cp_flags & CPF_READ_COMPLETED));
-		pg->cp_flags |= CPF_READ_COMPLETED;
-	}
-
-	cl_page_state_set(env, pg, CPS_CACHED);
-	if (crt >= CRT_NR)
-		return;
-	CL_PAGE_INVOID_REVERSE(env, pg, CL_PAGE_OP(io[crt].cpo_completion),
-			       (const struct lu_env *,
-				const struct cl_page_slice *, int), ioret);
-	if (anchor) {
-		LASSERT(cl_page_is_vmlocked(env, pg));
-		LASSERT(pg->cp_sync_io == anchor);
-		pg->cp_sync_io = NULL;
-	}
-	/*
-	 * As page->cp_obj is pinned by a reference from page->cp_req, it is
-	 * safe to call cl_page_put() without risking object destruction in a
-	 * non-blocking context.
-	 */
-	cl_page_put(env, pg);
-
-	if (anchor)
-		cl_sync_io_note(anchor, ioret);
-}
-EXPORT_SYMBOL(cl_page_completion);
-
-/**
- * Notify layers that transfer formation engine decided to yank this page from
- * the cache and to make it a part of a transfer.
- *
- * \pre  pg->cp_state == CPS_CACHED
- * \post pg->cp_state == CPS_PAGEIN || pg->cp_state == CPS_PAGEOUT
- *
- * \see cl_page_operations::cpo_make_ready()
- */
-int cl_page_make_ready(const struct lu_env *env, struct cl_page *pg,
-		       enum cl_req_type crt)
-{
-	int result;
-
-	PINVRNT(env, pg, crt < CRT_NR);
-
-	if (crt >= CRT_NR)
-		return -EINVAL;
-	result = CL_PAGE_INVOKE(env, pg, CL_PAGE_OP(io[crt].cpo_make_ready),
-				(const struct lu_env *,
-				 const struct cl_page_slice *));
-	if (result == 0) {
-		PASSERT(env, pg, pg->cp_state == CPS_CACHED);
-		cl_page_io_start(env, pg, crt);
-	}
-	CL_PAGE_HEADER(D_TRACE, env, pg, "%d %d\n", crt, result);
-	return result;
-}
-EXPORT_SYMBOL(cl_page_make_ready);
-
-/**
- * Notify layers that high level io decided to place this page into a cache
- * for future transfer.
- *
- * The layer implementing transfer engine (osc) has to register this page in
- * its queues.
- *
- * \pre  cl_page_is_owned(pg, io)
- * \post cl_page_is_owned(pg, io)
- *
- * \see cl_page_operations::cpo_cache_add()
- */
-int cl_page_cache_add(const struct lu_env *env, struct cl_io *io,
-		      struct cl_page *pg, enum cl_req_type crt)
-{
-	const struct cl_page_slice *scan;
-	int result = 0;
-
-	PINVRNT(env, pg, crt < CRT_NR);
-	PINVRNT(env, pg, cl_page_is_owned(pg, io));
-	PINVRNT(env, pg, cl_page_invariant(pg));
-
-	if (crt >= CRT_NR)
-		return -EINVAL;
-
-	list_for_each_entry(scan, &pg->cp_layers, cpl_linkage) {
-		if (scan->cpl_ops->io[crt].cpo_cache_add == NULL)
-			continue;
-
-		result = scan->cpl_ops->io[crt].cpo_cache_add(env, scan, io);
-		if (result != 0)
-			break;
-	}
-	CL_PAGE_HEADER(D_TRACE, env, pg, "%d %d\n", crt, result);
-	return result;
-}
-EXPORT_SYMBOL(cl_page_cache_add);
-
-/**
- * Called if a pge is being written back by kernel's intention.
- *
- * \pre  cl_page_is_owned(pg, io)
- * \post ergo(result == 0, pg->cp_state == CPS_PAGEOUT)
- *
- * \see cl_page_operations::cpo_flush()
- */
-int cl_page_flush(const struct lu_env *env, struct cl_io *io,
-		  struct cl_page *pg)
-{
-	int result;
-
-	PINVRNT(env, pg, cl_page_is_owned(pg, io));
-	PINVRNT(env, pg, cl_page_invariant(pg));
-
-	result = cl_page_invoke(env, io, pg, CL_PAGE_OP(cpo_flush));
-
-	CL_PAGE_HEADER(D_TRACE, env, pg, "%d\n", result);
-	return result;
-}
-EXPORT_SYMBOL(cl_page_flush);
-
-/**
- * Checks whether page is protected by any extent lock is at least required
- * mode.
- *
- * \return the same as in cl_page_operations::cpo_is_under_lock() method.
- * \see cl_page_operations::cpo_is_under_lock()
- */
-int cl_page_is_under_lock(const struct lu_env *env, struct cl_io *io,
-			  struct cl_page *page)
-{
-	int rc;
-
-	PINVRNT(env, page, cl_page_invariant(page));
-
-	rc = CL_PAGE_INVOKE(env, page, CL_PAGE_OP(cpo_is_under_lock),
-			    (const struct lu_env *,
-			     const struct cl_page_slice *, struct cl_io *),
-			    io);
-	PASSERT(env, page, rc != 0);
-	return rc;
-}
-EXPORT_SYMBOL(cl_page_is_under_lock);
-
-static int page_prune_cb(const struct lu_env *env, struct cl_io *io,
-			 struct cl_page *page, void *cbdata)
-{
-	cl_page_own(env, io, page);
-	cl_page_unmap(env, io, page);
-	cl_page_discard(env, io, page);
-	cl_page_disown(env, io, page);
-	return CLP_GANG_OKAY;
-}
-
-/**
- * Purges all cached pages belonging to the object \a obj.
- */
-int cl_pages_prune(const struct lu_env *env, struct cl_object *clobj)
-{
-	struct cl_thread_info   *info;
-	struct cl_object	*obj = cl_object_top(clobj);
-	struct cl_io	    *io;
-	int		      result;
-
-	info  = cl_env_info(env);
-	io    = &info->clt_io;
-
-	/*
-	 * initialize the io. This is ugly since we never do IO in this
-	 * function, we just make cl_page_list functions happy. -jay
-	 */
-	io->ci_obj = obj;
-	io->ci_ignore_layout = 1;
-	result = cl_io_init(env, io, CIT_MISC, obj);
-	if (result != 0) {
-		cl_io_fini(env, io);
-		return io->ci_result;
-	}
-
-	do {
-		result = cl_page_gang_lookup(env, obj, io, 0, CL_PAGE_EOF,
-					     page_prune_cb, NULL);
-		if (result == CLP_GANG_RESCHED)
-			cond_resched();
-	} while (result != CLP_GANG_OKAY);
-
-	cl_io_fini(env, io);
-	return result;
-}
-EXPORT_SYMBOL(cl_pages_prune);
-
-/**
- * Tells transfer engine that only part of a page is to be transmitted.
- *
- * \see cl_page_operations::cpo_clip()
- */
-void cl_page_clip(const struct lu_env *env, struct cl_page *pg,
-		  int from, int to)
-{
-	PINVRNT(env, pg, cl_page_invariant(pg));
-
-	CL_PAGE_HEADER(D_TRACE, env, pg, "%d %d\n", from, to);
-	CL_PAGE_INVOID(env, pg, CL_PAGE_OP(cpo_clip),
-		       (const struct lu_env *,
-			const struct cl_page_slice *, int, int),
-		       from, to);
-}
-EXPORT_SYMBOL(cl_page_clip);
-
-/**
- * Prints human readable representation of \a pg to the \a f.
- */
-void cl_page_header_print(const struct lu_env *env, void *cookie,
-			  lu_printer_t printer, const struct cl_page *pg)
-{
-	(*printer)(env, cookie,
-		   "page@%p[%d %p:%lu ^%p_%p %d %d %d %p %p %#x]\n",
-		   pg, atomic_read(&pg->cp_ref), pg->cp_obj,
-		   pg->cp_index, pg->cp_parent, pg->cp_child,
-		   pg->cp_state, pg->cp_error, pg->cp_type,
-		   pg->cp_owner, pg->cp_req, pg->cp_flags);
-}
-EXPORT_SYMBOL(cl_page_header_print);
-
-/**
- * Prints human readable representation of \a pg to the \a f.
- */
-void cl_page_print(const struct lu_env *env, void *cookie,
-		   lu_printer_t printer, const struct cl_page *pg)
-{
-	struct cl_page *scan;
-
-	for (scan = cl_page_top((struct cl_page *)pg);
-	     scan != NULL; scan = scan->cp_child)
-		cl_page_header_print(env, cookie, printer, scan);
-	CL_PAGE_INVOKE(env, (struct cl_page *)pg, CL_PAGE_OP(cpo_print),
-		       (const struct lu_env *env,
-			const struct cl_page_slice *slice,
-			void *cookie, lu_printer_t p), cookie, printer);
-	(*printer)(env, cookie, "end page@%p\n", pg);
-}
-EXPORT_SYMBOL(cl_page_print);
-
-/**
- * Cancel a page which is still in a transfer.
- */
-int cl_page_cancel(const struct lu_env *env, struct cl_page *page)
-{
-	return CL_PAGE_INVOKE(env, page, CL_PAGE_OP(cpo_cancel),
-			      (const struct lu_env *,
-			       const struct cl_page_slice *));
-}
-EXPORT_SYMBOL(cl_page_cancel);
-
-/**
- * Converts a byte offset within object \a obj into a page index.
- */
-loff_t cl_offset(const struct cl_object *obj, pgoff_t idx)
-{
-	/*
-	 * XXX for now.
-	 */
-	return (loff_t)idx << PAGE_CACHE_SHIFT;
-}
-EXPORT_SYMBOL(cl_offset);
-
-/**
- * Converts a page index into a byte offset within object \a obj.
- */
-pgoff_t cl_index(const struct cl_object *obj, loff_t offset)
-{
-	/*
-	 * XXX for now.
-	 */
-	return offset >> PAGE_CACHE_SHIFT;
-}
-EXPORT_SYMBOL(cl_index);
-
-int cl_page_size(const struct cl_object *obj)
-{
-	return 1 << PAGE_CACHE_SHIFT;
-}
-EXPORT_SYMBOL(cl_page_size);
-
-/**
- * Adds page slice to the compound page.
- *
- * This is called by cl_object_operations::coo_page_init() methods to add a
- * per-layer state to the page. New state is added at the end of
- * cl_page::cp_layers list, that is, it is at the bottom of the stack.
- *
- * \see cl_lock_slice_add(), cl_req_slice_add(), cl_io_slice_add()
- */
-void cl_page_slice_add(struct cl_page *page, struct cl_page_slice *slice,
-		       struct cl_object *obj,
-		       const struct cl_page_operations *ops)
-{
-	list_add_tail(&slice->cpl_linkage, &page->cp_layers);
-	slice->cpl_obj  = obj;
-	slice->cpl_ops  = ops;
-	slice->cpl_page = page;
-}
-EXPORT_SYMBOL(cl_page_slice_add);
-
-int  cl_page_init(void)
-{
-	return 0;
-}
-
-void cl_page_fini(void)
-{
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
deleted file mode 100644
index 2c705d76211f..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ /dev/null
@@ -1,690 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-# include <linux/atomic.h>
-
-#include "../include/obd_support.h"
-#include "../include/obd_class.h"
-#include "../../include/linux/lnet/lnetctl.h"
-#include "../include/lustre_debug.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre/lustre_build_version.h"
-#include <linux/list.h>
-#include "../include/cl_object.h"
-#include "llog_internal.h"
-
-
-struct obd_device *obd_devs[MAX_OBD_DEVICES];
-EXPORT_SYMBOL(obd_devs);
-struct list_head obd_types;
-DEFINE_RWLOCK(obd_dev_lock);
-
-__u64 obd_max_pages = 0;
-EXPORT_SYMBOL(obd_max_pages);
-__u64 obd_max_alloc = 0;
-EXPORT_SYMBOL(obd_max_alloc);
-__u64 obd_alloc;
-EXPORT_SYMBOL(obd_alloc);
-__u64 obd_pages;
-EXPORT_SYMBOL(obd_pages);
-static DEFINE_SPINLOCK(obd_updatemax_lock);
-
-/* The following are visible and mutable through /proc/sys/lustre/. */
-unsigned int obd_alloc_fail_rate = 0;
-EXPORT_SYMBOL(obd_alloc_fail_rate);
-unsigned int obd_debug_peer_on_timeout;
-EXPORT_SYMBOL(obd_debug_peer_on_timeout);
-unsigned int obd_dump_on_timeout;
-EXPORT_SYMBOL(obd_dump_on_timeout);
-unsigned int obd_dump_on_eviction;
-EXPORT_SYMBOL(obd_dump_on_eviction);
-unsigned int obd_max_dirty_pages = 256;
-EXPORT_SYMBOL(obd_max_dirty_pages);
-atomic_t obd_dirty_pages;
-EXPORT_SYMBOL(obd_dirty_pages);
-unsigned int obd_timeout = OBD_TIMEOUT_DEFAULT;   /* seconds */
-EXPORT_SYMBOL(obd_timeout);
-unsigned int obd_timeout_set;
-EXPORT_SYMBOL(obd_timeout_set);
-/* Adaptive timeout defs here instead of ptlrpc module for /proc/sys/ access */
-unsigned int at_min = 0;
-EXPORT_SYMBOL(at_min);
-unsigned int at_max = 600;
-EXPORT_SYMBOL(at_max);
-unsigned int at_history = 600;
-EXPORT_SYMBOL(at_history);
-int at_early_margin = 5;
-EXPORT_SYMBOL(at_early_margin);
-int at_extra = 30;
-EXPORT_SYMBOL(at_extra);
-
-atomic_t obd_dirty_transit_pages;
-EXPORT_SYMBOL(obd_dirty_transit_pages);
-
-char obd_jobid_var[JOBSTATS_JOBID_VAR_MAX_LEN + 1] = JOBSTATS_DISABLE;
-EXPORT_SYMBOL(obd_jobid_var);
-
-char obd_jobid_node[JOBSTATS_JOBID_SIZE + 1];
-
-/* Get jobid of current process from stored variable or calculate
- * it from pid and user_id.
- *
- * Historically this was also done by reading the environment variable
- * stored in between the "env_start" & "env_end" of task struct.
- * This is now deprecated.
- */
-int lustre_get_jobid(char *jobid)
-{
-	memset(jobid, 0, JOBSTATS_JOBID_SIZE);
-	/* Jobstats isn't enabled */
-	if (strcmp(obd_jobid_var, JOBSTATS_DISABLE) == 0)
-		return 0;
-
-	/* Use process name + fsuid as jobid */
-	if (strcmp(obd_jobid_var, JOBSTATS_PROCNAME_UID) == 0) {
-		snprintf(jobid, JOBSTATS_JOBID_SIZE, "%s.%u",
-			 current_comm(),
-			 from_kuid(&init_user_ns, current_fsuid()));
-		return 0;
-	}
-
-	/* Whole node dedicated to single job */
-	if (strcmp(obd_jobid_var, JOBSTATS_NODELOCAL) == 0) {
-		strcpy(jobid, obd_jobid_node);
-		return 0;
-	}
-
-	return -ENOENT;
-}
-EXPORT_SYMBOL(lustre_get_jobid);
-
-int obd_alloc_fail(const void *ptr, const char *name, const char *type,
-		   size_t size, const char *file, int line)
-{
-	if (ptr == NULL ||
-	    (cfs_rand() & OBD_ALLOC_FAIL_MASK) < obd_alloc_fail_rate) {
-		CERROR("%s%salloc of %s (%llu bytes) failed at %s:%d\n",
-		       ptr ? "force " :"", type, name, (__u64)size, file,
-		       line);
-		CERROR("%llu total bytes and %llu total pages"
-			" (%llu bytes) allocated by Lustre\n",
-		       obd_memory_sum(),
-		       obd_pages_sum() << PAGE_CACHE_SHIFT,
-		       obd_pages_sum());
-		return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(obd_alloc_fail);
-
-static inline void obd_data2conn(struct lustre_handle *conn,
-				 struct obd_ioctl_data *data)
-{
-	memset(conn, 0, sizeof(*conn));
-	conn->cookie = data->ioc_cookie;
-}
-
-static inline void obd_conn2data(struct obd_ioctl_data *data,
-				 struct lustre_handle *conn)
-{
-	data->ioc_cookie = conn->cookie;
-}
-
-int class_resolve_dev_name(__u32 len, const char *name)
-{
-	int rc;
-	int dev;
-
-	if (!len || !name) {
-		CERROR("No name passed,!\n");
-		rc = -EINVAL;
-		goto out;
-	}
-	if (name[len - 1] != 0) {
-		CERROR("Name not nul terminated!\n");
-		rc = -EINVAL;
-		goto out;
-	}
-
-	CDEBUG(D_IOCTL, "device name %s\n", name);
-	dev = class_name2dev(name);
-	if (dev == -1) {
-		CDEBUG(D_IOCTL, "No device for name %s!\n", name);
-		rc = -EINVAL;
-		goto out;
-	}
-
-	CDEBUG(D_IOCTL, "device name %s, dev %d\n", name, dev);
-	rc = dev;
-
-out:
-	return rc;
-}
-
-int class_handle_ioctl(unsigned int cmd, unsigned long arg)
-{
-	char *buf = NULL;
-	struct obd_ioctl_data *data;
-	struct libcfs_debug_ioctl_data *debug_data;
-	struct obd_device *obd = NULL;
-	int err = 0, len = 0;
-
-	/* only for debugging */
-	if (cmd == LIBCFS_IOC_DEBUG_MASK) {
-		debug_data = (struct libcfs_debug_ioctl_data *)arg;
-		libcfs_subsystem_debug = debug_data->subs;
-		libcfs_debug = debug_data->debug;
-		return 0;
-	}
-
-	CDEBUG(D_IOCTL, "cmd = %x\n", cmd);
-	if (obd_ioctl_getdata(&buf, &len, (void *)arg)) {
-		CERROR("OBD ioctl: data error\n");
-		return -EINVAL;
-	}
-	data = (struct obd_ioctl_data *)buf;
-
-	switch (cmd) {
-	case OBD_IOC_PROCESS_CFG: {
-		struct lustre_cfg *lcfg;
-
-		if (!data->ioc_plen1 || !data->ioc_pbuf1) {
-			CERROR("No config buffer passed!\n");
-			err = -EINVAL;
-			goto out;
-		}
-		lcfg = kzalloc(data->ioc_plen1, GFP_NOFS);
-		if (!lcfg) {
-			err = -ENOMEM;
-			goto out;
-		}
-		err = copy_from_user(lcfg, data->ioc_pbuf1,
-					 data->ioc_plen1);
-		if (!err)
-			err = lustre_cfg_sanity_check(lcfg, data->ioc_plen1);
-		if (!err)
-			err = class_process_config(lcfg);
-
-		kfree(lcfg);
-		goto out;
-	}
-
-	case OBD_GET_VERSION:
-		if (!data->ioc_inlbuf1) {
-			CERROR("No buffer passed in ioctl\n");
-			err = -EINVAL;
-			goto out;
-		}
-
-		if (strlen(BUILD_VERSION) + 1 > data->ioc_inllen1) {
-			CERROR("ioctl buffer too small to hold version\n");
-			err = -EINVAL;
-			goto out;
-		}
-
-		memcpy(data->ioc_bulk, BUILD_VERSION,
-		       strlen(BUILD_VERSION) + 1);
-
-		err = obd_ioctl_popdata((void *)arg, data, len);
-		if (err)
-			err = -EFAULT;
-		goto out;
-
-	case OBD_IOC_NAME2DEV: {
-		/* Resolve a device name.  This does not change the
-		 * currently selected device.
-		 */
-		int dev;
-
-		dev = class_resolve_dev_name(data->ioc_inllen1,
-					     data->ioc_inlbuf1);
-		data->ioc_dev = dev;
-		if (dev < 0) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
-		if (err)
-			err = -EFAULT;
-		goto out;
-	}
-
-	case OBD_IOC_UUID2DEV: {
-		/* Resolve a device uuid.  This does not change the
-		 * currently selected device.
-		 */
-		int dev;
-		struct obd_uuid uuid;
-
-		if (!data->ioc_inllen1 || !data->ioc_inlbuf1) {
-			CERROR("No UUID passed!\n");
-			err = -EINVAL;
-			goto out;
-		}
-		if (data->ioc_inlbuf1[data->ioc_inllen1 - 1] != 0) {
-			CERROR("UUID not NUL terminated!\n");
-			err = -EINVAL;
-			goto out;
-		}
-
-		CDEBUG(D_IOCTL, "device name %s\n", data->ioc_inlbuf1);
-		obd_str2uuid(&uuid, data->ioc_inlbuf1);
-		dev = class_uuid2dev(&uuid);
-		data->ioc_dev = dev;
-		if (dev == -1) {
-			CDEBUG(D_IOCTL, "No device for UUID %s!\n",
-			       data->ioc_inlbuf1);
-			err = -EINVAL;
-			goto out;
-		}
-
-		CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
-		       dev);
-		err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
-		if (err)
-			err = -EFAULT;
-		goto out;
-	}
-
-	case OBD_IOC_CLOSE_UUID: {
-		CDEBUG(D_IOCTL, "closing all connections to uuid %s (NOOP)\n",
-		       data->ioc_inlbuf1);
-		err = 0;
-		goto out;
-	}
-
-	case OBD_IOC_GETDEVICE: {
-		int     index = data->ioc_count;
-		char    *status, *str;
-
-		if (!data->ioc_inlbuf1) {
-			CERROR("No buffer passed in ioctl\n");
-			err = -EINVAL;
-			goto out;
-		}
-		if (data->ioc_inllen1 < 128) {
-			CERROR("ioctl buffer too small to hold version\n");
-			err = -EINVAL;
-			goto out;
-		}
-
-		obd = class_num2obd(index);
-		if (!obd) {
-			err = -ENOENT;
-			goto out;
-		}
-
-		if (obd->obd_stopping)
-			status = "ST";
-		else if (obd->obd_set_up)
-			status = "UP";
-		else if (obd->obd_attached)
-			status = "AT";
-		else
-			status = "--";
-		str = (char *)data->ioc_bulk;
-		snprintf(str, len - sizeof(*data), "%3d %s %s %s %s %d",
-			 (int)index, status, obd->obd_type->typ_name,
-			 obd->obd_name, obd->obd_uuid.uuid,
-			 atomic_read(&obd->obd_refcount));
-		err = obd_ioctl_popdata((void *)arg, data, len);
-
-		err = 0;
-		goto out;
-	}
-
-	}
-
-	if (data->ioc_dev == OBD_DEV_BY_DEVNAME) {
-		if (data->ioc_inllen4 <= 0 || data->ioc_inlbuf4 == NULL) {
-			err = -EINVAL;
-			goto out;
-		}
-		if (strnlen(data->ioc_inlbuf4, MAX_OBD_NAME) >= MAX_OBD_NAME) {
-			err = -EINVAL;
-			goto out;
-		}
-		obd = class_name2obd(data->ioc_inlbuf4);
-	} else if (data->ioc_dev < class_devno_max()) {
-		obd = class_num2obd(data->ioc_dev);
-	} else {
-		CERROR("OBD ioctl: No device\n");
-		err = -EINVAL;
-		goto out;
-	}
-
-	if (obd == NULL) {
-		CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
-		err = -EINVAL;
-		goto out;
-	}
-	LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-
-	if (!obd->obd_set_up || obd->obd_stopping) {
-		CERROR("OBD ioctl: device not setup %d\n", data->ioc_dev);
-		err = -EINVAL;
-		goto out;
-	}
-
-	switch (cmd) {
-	case OBD_IOC_NO_TRANSNO: {
-		if (!obd->obd_attached) {
-			CERROR("Device %d not attached\n", obd->obd_minor);
-			err = -ENODEV;
-			goto out;
-		}
-		CDEBUG(D_HA, "%s: disabling committed-transno notification\n",
-		       obd->obd_name);
-		obd->obd_no_transno = 1;
-		err = 0;
-		goto out;
-	}
-
-	default: {
-		err = obd_iocontrol(cmd, obd->obd_self_export, len, data, NULL);
-		if (err)
-			goto out;
-
-		err = obd_ioctl_popdata((void *)arg, data, len);
-		if (err)
-			err = -EFAULT;
-		goto out;
-	}
-	}
-
- out:
-	if (buf)
-		obd_ioctl_freedata(buf, len);
-	return err;
-} /* class_handle_ioctl */
-
-#define OBD_INIT_CHECK
-int obd_init_checks(void)
-{
-	__u64 u64val, div64val;
-	char buf[64];
-	int len, ret = 0;
-
-	CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s\n", "%llu", "%lld", "%#llx");
-
-	CDEBUG(D_INFO, "OBD_OBJECT_EOF = %#llx\n", (__u64)OBD_OBJECT_EOF);
-
-	u64val = OBD_OBJECT_EOF;
-	CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = %#llx\n", u64val);
-	if (u64val != OBD_OBJECT_EOF) {
-		CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
-		       u64val, (int)sizeof(u64val));
-		ret = -EINVAL;
-	}
-	len = snprintf(buf, sizeof(buf), "%#llx", u64val);
-	if (len != 18) {
-		CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
-		ret = -EINVAL;
-	}
-
-	div64val = OBD_OBJECT_EOF;
-	CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = %#llx\n", u64val);
-	if (u64val != OBD_OBJECT_EOF) {
-		CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
-		       u64val, (int)sizeof(u64val));
-		ret = -EOVERFLOW;
-	}
-	if (u64val >> 8 != OBD_OBJECT_EOF >> 8) {
-		CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
-		       u64val, (int)sizeof(u64val));
-		return -EOVERFLOW;
-	}
-	if (do_div(div64val, 256) != (u64val & 255)) {
-		CERROR("do_div(%#llx,256) != %llu\n", u64val, u64val &255);
-		return -EOVERFLOW;
-	}
-	if (u64val >> 8 != div64val) {
-		CERROR("do_div(%#llx,256) %llu != %llu\n",
-		       u64val, div64val, u64val >> 8);
-		return -EOVERFLOW;
-	}
-	len = snprintf(buf, sizeof(buf), "%#llx", u64val);
-	if (len != 18) {
-		CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
-		ret = -EINVAL;
-	}
-	len = snprintf(buf, sizeof(buf), "%llu", u64val);
-	if (len != 20) {
-		CWARN("LPU64 wrong length! strlen(%s)=%d != 20\n", buf, len);
-		ret = -EINVAL;
-	}
-	len = snprintf(buf, sizeof(buf), "%lld", u64val);
-	if (len != 2) {
-		CWARN("LPD64 wrong length! strlen(%s)=%d != 2\n", buf, len);
-		ret = -EINVAL;
-	}
-	if ((u64val & ~CFS_PAGE_MASK) >= PAGE_CACHE_SIZE) {
-		CWARN("mask failed: u64val %llu >= %llu\n", u64val,
-		      (__u64)PAGE_CACHE_SIZE);
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-extern int class_procfs_init(void);
-extern int class_procfs_clean(void);
-
-static int __init init_obdclass(void)
-{
-	int i, err;
-	int lustre_register_fs(void);
-
-	for (i = CAPA_SITE_CLIENT; i < CAPA_SITE_MAX; i++)
-		INIT_LIST_HEAD(&capa_list[i]);
-
-	LCONSOLE_INFO("Lustre: Build Version: "BUILD_VERSION"\n");
-
-	spin_lock_init(&obd_types_lock);
-	obd_zombie_impexp_init();
-
-	obd_memory = lprocfs_alloc_stats(OBD_STATS_NUM,
-					 LPROCFS_STATS_FLAG_NONE |
-					 LPROCFS_STATS_FLAG_IRQ_SAFE);
-
-	if (obd_memory == NULL) {
-		CERROR("kmalloc of 'obd_memory' failed\n");
-		return -ENOMEM;
-	}
-
-	lprocfs_counter_init(obd_memory, OBD_MEMORY_STAT,
-			     LPROCFS_CNTR_AVGMINMAX,
-			     "memused", "bytes");
-	lprocfs_counter_init(obd_memory, OBD_MEMORY_PAGES_STAT,
-			     LPROCFS_CNTR_AVGMINMAX,
-			     "pagesused", "pages");
-
-	err = obd_init_checks();
-	if (err == -EOVERFLOW)
-		return err;
-
-	class_init_uuidlist();
-	err = class_handle_init();
-	if (err)
-		return err;
-
-	INIT_LIST_HEAD(&obd_types);
-
-	err = misc_register(&obd_psdev);
-	if (err) {
-		CERROR("cannot register %d err %d\n", OBD_DEV_MINOR, err);
-		return err;
-	}
-
-	/* This struct is already zeroed for us (static global) */
-	for (i = 0; i < class_devno_max(); i++)
-		obd_devs[i] = NULL;
-
-	/* Default the dirty page cache cap to 1/2 of system memory.
-	 * For clients with less memory, a larger fraction is needed
-	 * for other purposes (mostly for BGL). */
-	if (totalram_pages <= 512 << (20 - PAGE_CACHE_SHIFT))
-		obd_max_dirty_pages = totalram_pages / 4;
-	else
-		obd_max_dirty_pages = totalram_pages / 2;
-
-	err = obd_init_caches();
-	if (err)
-		return err;
-
-	err = class_procfs_init();
-	if (err)
-		return err;
-
-	err = obd_sysctl_init();
-	if (err)
-		return err;
-
-	err = lu_global_init();
-	if (err)
-		return err;
-
-	err = cl_global_init();
-	if (err != 0)
-		return err;
-
-
-	err = llog_info_init();
-	if (err)
-		return err;
-
-	err = lustre_register_fs();
-
-	return err;
-}
-
-void obd_update_maxusage(void)
-{
-	__u64 max1, max2;
-
-	max1 = obd_pages_sum();
-	max2 = obd_memory_sum();
-
-	spin_lock(&obd_updatemax_lock);
-	if (max1 > obd_max_pages)
-		obd_max_pages = max1;
-	if (max2 > obd_max_alloc)
-		obd_max_alloc = max2;
-	spin_unlock(&obd_updatemax_lock);
-}
-EXPORT_SYMBOL(obd_update_maxusage);
-
-__u64 obd_memory_max(void)
-{
-	__u64 ret;
-
-	spin_lock(&obd_updatemax_lock);
-	ret = obd_max_alloc;
-	spin_unlock(&obd_updatemax_lock);
-
-	return ret;
-}
-EXPORT_SYMBOL(obd_memory_max);
-
-__u64 obd_pages_max(void)
-{
-	__u64 ret;
-
-	spin_lock(&obd_updatemax_lock);
-	ret = obd_max_pages;
-	spin_unlock(&obd_updatemax_lock);
-
-	return ret;
-}
-EXPORT_SYMBOL(obd_pages_max);
-
-/* liblustre doesn't call cleanup_obdclass, apparently.  we carry on in this
- * ifdef to the end of the file to cover module and versioning goo.*/
-static void cleanup_obdclass(void)
-{
-	int i;
-	int lustre_unregister_fs(void);
-	__u64 memory_leaked, pages_leaked;
-	__u64 memory_max, pages_max;
-
-	lustre_unregister_fs();
-
-	misc_deregister(&obd_psdev);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd = class_num2obd(i);
-		if (obd && obd->obd_set_up &&
-		    OBT(obd) && OBP(obd, detach)) {
-			/* XXX should this call generic detach otherwise? */
-			LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-			OBP(obd, detach)(obd);
-		}
-	}
-	llog_info_fini();
-	cl_global_fini();
-	lu_global_fini();
-
-	obd_cleanup_caches();
-
-	class_procfs_clean();
-
-	class_handle_cleanup();
-	class_exit_uuidlist();
-	obd_zombie_impexp_stop();
-
-	memory_leaked = obd_memory_sum();
-	pages_leaked = obd_pages_sum();
-
-	memory_max = obd_memory_max();
-	pages_max = obd_pages_max();
-
-	lprocfs_free_stats(&obd_memory);
-	CDEBUG((memory_leaked) ? D_ERROR : D_INFO,
-	       "obd_memory max: %llu, leaked: %llu\n",
-	       memory_max, memory_leaked);
-	CDEBUG((pages_leaked) ? D_ERROR : D_INFO,
-	       "obd_memory_pages max: %llu, leaked: %llu\n",
-	       pages_max, pages_leaked);
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
-MODULE_LICENSE("GPL");
-MODULE_VERSION(LUSTRE_VERSION_STRING);
-
-module_init(init_obdclass);
-module_exit(cleanup_obdclass);
diff --git a/drivers/staging/lustre/lustre/obdclass/debug.c b/drivers/staging/lustre/lustre/obdclass/debug.c
deleted file mode 100644
index c61add46b426..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/debug.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/debug.c
- *
- * Helper routines for dumping data structs for debugging.
- */
-
-#define DEBUG_SUBSYSTEM D_OTHER
-
-#include <asm/unaligned.h>
-
-#include "../include/obd_support.h"
-#include "../include/lustre_debug.h"
-#include "../include/lustre_net.h"
-
-void dump_lniobuf(struct niobuf_local *nb)
-{
-	CDEBUG(D_RPCTRACE,
-	       "niobuf_local: file_offset=%lld, len=%d, page=%p, rc=%d\n",
-	       nb->lnb_file_offset, nb->len, nb->page, nb->rc);
-	CDEBUG(D_RPCTRACE, "nb->page: index = %ld\n",
-			nb->page ? page_index(nb->page) : -1);
-}
-EXPORT_SYMBOL(dump_lniobuf);
-
-#define LPDS sizeof(__u64)
-int block_debug_setup(void *addr, int len, __u64 off, __u64 id)
-{
-	LASSERT(addr);
-
-	put_unaligned_le64(off, addr);
-	put_unaligned_le64(id, addr+LPDS);
-	addr += len - LPDS - LPDS;
-	put_unaligned_le64(off, addr);
-	put_unaligned_le64(id, addr+LPDS);
-
-	return 0;
-}
-EXPORT_SYMBOL(block_debug_setup);
-
-int block_debug_check(char *who, void *addr, int end, __u64 off, __u64 id)
-{
-	__u64 ne_off;
-	int err = 0;
-
-	LASSERT(addr);
-
-	ne_off = le64_to_cpu (off);
-	id = le64_to_cpu (id);
-	if (memcmp(addr, (char *)&ne_off, LPDS)) {
-		CDEBUG(D_ERROR, "%s: id %#llx offset %llu off: %#llx != %#llx\n",
-		       who, id, off, *(__u64 *)addr, ne_off);
-		err = -EINVAL;
-	}
-	if (memcmp(addr + LPDS, (char *)&id, LPDS)) {
-		CDEBUG(D_ERROR, "%s: id %#llx offset %llu id: %#llx != %#llx\n",
-		       who, id, off, *(__u64 *)(addr + LPDS), id);
-		err = -EINVAL;
-	}
-
-	addr += end - LPDS - LPDS;
-	if (memcmp(addr, (char *)&ne_off, LPDS)) {
-		CDEBUG(D_ERROR, "%s: id %#llx offset %llu end off: %#llx != %#llx\n",
-		       who, id, off, *(__u64 *)addr, ne_off);
-		err = -EINVAL;
-	}
-	if (memcmp(addr + LPDS, (char *)&id, LPDS)) {
-		CDEBUG(D_ERROR, "%s: id %#llx offset %llu end id: %#llx != %#llx\n",
-		       who, id, off, *(__u64 *)(addr + LPDS), id);
-		err = -EINVAL;
-	}
-
-	return err;
-}
-EXPORT_SYMBOL(block_debug_check);
-#undef LPDS
diff --git a/drivers/staging/lustre/lustre/obdclass/dt_object.c b/drivers/staging/lustre/lustre/obdclass/dt_object.c
deleted file mode 100644
index b67b0feb03e0..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/dt_object.c
+++ /dev/null
@@ -1,1054 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/dt_object.c
- *
- * Dt Object.
- * Generic functions from dt_object.h
- *
- * Author: Nikita Danilov <nikita@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../include/obd.h"
-#include "../include/dt_object.h"
-#include <linux/list.h>
-/* fid_be_to_cpu() */
-#include "../include/lustre_fid.h"
-
-/* context key constructor/destructor: dt_global_key_init, dt_global_key_fini */
-LU_KEY_INIT(dt_global, struct dt_thread_info);
-LU_KEY_FINI(dt_global, struct dt_thread_info);
-
-struct lu_context_key dt_key = {
-	.lct_tags = LCT_MD_THREAD | LCT_DT_THREAD | LCT_MG_THREAD | LCT_LOCAL,
-	.lct_init = dt_global_key_init,
-	.lct_fini = dt_global_key_fini
-};
-EXPORT_SYMBOL(dt_key);
-
-/* no lock is necessary to protect the list, because call-backs
- * are added during system startup. Please refer to "struct dt_device".
- */
-void dt_txn_callback_add(struct dt_device *dev, struct dt_txn_callback *cb)
-{
-	list_add(&cb->dtc_linkage, &dev->dd_txn_callbacks);
-}
-EXPORT_SYMBOL(dt_txn_callback_add);
-
-void dt_txn_callback_del(struct dt_device *dev, struct dt_txn_callback *cb)
-{
-	list_del_init(&cb->dtc_linkage);
-}
-EXPORT_SYMBOL(dt_txn_callback_del);
-
-int dt_txn_hook_start(const struct lu_env *env,
-		      struct dt_device *dev, struct thandle *th)
-{
-	int rc = 0;
-	struct dt_txn_callback *cb;
-
-	if (th->th_local)
-		return 0;
-
-	list_for_each_entry(cb, &dev->dd_txn_callbacks, dtc_linkage) {
-		if (cb->dtc_txn_start == NULL ||
-		    !(cb->dtc_tag & env->le_ctx.lc_tags))
-			continue;
-		rc = cb->dtc_txn_start(env, th, cb->dtc_cookie);
-		if (rc < 0)
-			break;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(dt_txn_hook_start);
-
-int dt_txn_hook_stop(const struct lu_env *env, struct thandle *txn)
-{
-	struct dt_device       *dev = txn->th_dev;
-	struct dt_txn_callback *cb;
-	int		     rc = 0;
-
-	if (txn->th_local)
-		return 0;
-
-	list_for_each_entry(cb, &dev->dd_txn_callbacks, dtc_linkage) {
-		if (cb->dtc_txn_stop == NULL ||
-		    !(cb->dtc_tag & env->le_ctx.lc_tags))
-			continue;
-		rc = cb->dtc_txn_stop(env, txn, cb->dtc_cookie);
-		if (rc < 0)
-			break;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(dt_txn_hook_stop);
-
-void dt_txn_hook_commit(struct thandle *txn)
-{
-	struct dt_txn_callback *cb;
-
-	if (txn->th_local)
-		return;
-
-	list_for_each_entry(cb, &txn->th_dev->dd_txn_callbacks,
-				dtc_linkage) {
-		if (cb->dtc_txn_commit)
-			cb->dtc_txn_commit(txn, cb->dtc_cookie);
-	}
-}
-EXPORT_SYMBOL(dt_txn_hook_commit);
-
-int dt_device_init(struct dt_device *dev, struct lu_device_type *t)
-{
-
-	INIT_LIST_HEAD(&dev->dd_txn_callbacks);
-	return lu_device_init(&dev->dd_lu_dev, t);
-}
-EXPORT_SYMBOL(dt_device_init);
-
-void dt_device_fini(struct dt_device *dev)
-{
-	lu_device_fini(&dev->dd_lu_dev);
-}
-EXPORT_SYMBOL(dt_device_fini);
-
-int dt_object_init(struct dt_object *obj,
-		   struct lu_object_header *h, struct lu_device *d)
-
-{
-	return lu_object_init(&obj->do_lu, h, d);
-}
-EXPORT_SYMBOL(dt_object_init);
-
-void dt_object_fini(struct dt_object *obj)
-{
-	lu_object_fini(&obj->do_lu);
-}
-EXPORT_SYMBOL(dt_object_fini);
-
-int dt_try_as_dir(const struct lu_env *env, struct dt_object *obj)
-{
-	if (obj->do_index_ops == NULL)
-		obj->do_ops->do_index_try(env, obj, &dt_directory_features);
-	return obj->do_index_ops != NULL;
-}
-EXPORT_SYMBOL(dt_try_as_dir);
-
-enum dt_format_type dt_mode_to_dft(__u32 mode)
-{
-	enum dt_format_type result;
-
-	switch (mode & S_IFMT) {
-	case S_IFDIR:
-		result = DFT_DIR;
-		break;
-	case S_IFREG:
-		result = DFT_REGULAR;
-		break;
-	case S_IFLNK:
-		result = DFT_SYM;
-		break;
-	case S_IFCHR:
-	case S_IFBLK:
-	case S_IFIFO:
-	case S_IFSOCK:
-		result = DFT_NODE;
-		break;
-	default:
-		LBUG();
-		break;
-	}
-	return result;
-}
-EXPORT_SYMBOL(dt_mode_to_dft);
-
-/**
- * lookup fid for object named \a name in directory \a dir.
- */
-
-int dt_lookup_dir(const struct lu_env *env, struct dt_object *dir,
-		  const char *name, struct lu_fid *fid)
-{
-	if (dt_try_as_dir(env, dir))
-		return dt_lookup(env, dir, (struct dt_rec *)fid,
-				 (const struct dt_key *)name, BYPASS_CAPA);
-	return -ENOTDIR;
-}
-EXPORT_SYMBOL(dt_lookup_dir);
-
-/* this differs from dt_locate by top_dev as parameter
- * but not one from lu_site */
-struct dt_object *dt_locate_at(const struct lu_env *env,
-			       struct dt_device *dev, const struct lu_fid *fid,
-			       struct lu_device *top_dev)
-{
-	struct lu_object *lo, *n;
-
-	lo = lu_object_find_at(env, top_dev, fid, NULL);
-	if (IS_ERR(lo))
-		return (void *)lo;
-
-	LASSERT(lo != NULL);
-
-	list_for_each_entry(n, &lo->lo_header->loh_layers, lo_linkage) {
-		if (n->lo_dev == &dev->dd_lu_dev)
-			return container_of0(n, struct dt_object, do_lu);
-	}
-	return ERR_PTR(-ENOENT);
-}
-EXPORT_SYMBOL(dt_locate_at);
-
-/**
- * find a object named \a entry in given \a dfh->dfh_o directory.
- */
-static int dt_find_entry(const struct lu_env *env,
-			 const char *entry, void *data)
-{
-	struct dt_find_hint  *dfh = data;
-	struct dt_device     *dt = dfh->dfh_dt;
-	struct lu_fid	*fid = dfh->dfh_fid;
-	struct dt_object     *obj = dfh->dfh_o;
-	int		   result;
-
-	result = dt_lookup_dir(env, obj, entry, fid);
-	lu_object_put(env, &obj->do_lu);
-	if (result == 0) {
-		obj = dt_locate(env, dt, fid);
-		if (IS_ERR(obj))
-			result = PTR_ERR(obj);
-	}
-	dfh->dfh_o = obj;
-	return result;
-}
-
-/**
- * Abstract function which parses path name. This function feeds
- * path component to \a entry_func.
- */
-int dt_path_parser(const struct lu_env *env,
-		   char *path, dt_entry_func_t entry_func,
-		   void *data)
-{
-	char *e;
-	int rc = 0;
-
-	while (1) {
-		e = strsep(&path, "/");
-		if (e == NULL)
-			break;
-
-		if (e[0] == 0) {
-			if (!path || path[0] == '\0')
-				break;
-			continue;
-		}
-		rc = entry_func(env, e, data);
-		if (rc)
-			break;
-	}
-
-	return rc;
-}
-
-struct dt_object *
-dt_store_resolve(const struct lu_env *env, struct dt_device *dt,
-		 const char *path, struct lu_fid *fid)
-{
-	struct dt_thread_info *info = dt_info(env);
-	struct dt_find_hint   *dfh = &info->dti_dfh;
-	struct dt_object      *obj;
-	char		      *local = info->dti_buf;
-	int		       result;
-
-
-	dfh->dfh_dt = dt;
-	dfh->dfh_fid = fid;
-
-	strncpy(local, path, DT_MAX_PATH);
-	local[DT_MAX_PATH - 1] = '\0';
-
-	result = dt->dd_ops->dt_root_get(env, dt, fid);
-	if (result == 0) {
-		obj = dt_locate(env, dt, fid);
-		if (!IS_ERR(obj)) {
-			dfh->dfh_o = obj;
-			result = dt_path_parser(env, local, dt_find_entry, dfh);
-			if (result != 0)
-				obj = ERR_PTR(result);
-			else
-				obj = dfh->dfh_o;
-		}
-	} else {
-		obj = ERR_PTR(result);
-	}
-	return obj;
-}
-EXPORT_SYMBOL(dt_store_resolve);
-
-static struct dt_object *dt_reg_open(const struct lu_env *env,
-				     struct dt_device *dt,
-				     struct dt_object *p,
-				     const char *name,
-				     struct lu_fid *fid)
-{
-	struct dt_object *o;
-	int result;
-
-	result = dt_lookup_dir(env, p, name, fid);
-	if (result == 0)
-		o = dt_locate(env, dt, fid);
-	else
-		o = ERR_PTR(result);
-
-	return o;
-}
-
-/**
- * Open dt object named \a filename from \a dirname directory.
- *      \param  dt      dt device
- *      \param  fid     on success, object fid is stored in *fid
- */
-struct dt_object *dt_store_open(const struct lu_env *env,
-				struct dt_device *dt,
-				const char *dirname,
-				const char *filename,
-				struct lu_fid *fid)
-{
-	struct dt_object *file;
-	struct dt_object *dir;
-
-	dir = dt_store_resolve(env, dt, dirname, fid);
-	if (!IS_ERR(dir)) {
-		file = dt_reg_open(env, dt, dir,
-				   filename, fid);
-		lu_object_put(env, &dir->do_lu);
-	} else {
-		file = dir;
-	}
-	return file;
-}
-EXPORT_SYMBOL(dt_store_open);
-
-struct dt_object *dt_find_or_create(const struct lu_env *env,
-				    struct dt_device *dt,
-				    const struct lu_fid *fid,
-				    struct dt_object_format *dof,
-				    struct lu_attr *at)
-{
-	struct dt_object *dto;
-	struct thandle *th;
-	int rc;
-
-	dto = dt_locate(env, dt, fid);
-	if (IS_ERR(dto))
-		return dto;
-
-	LASSERT(dto != NULL);
-	if (dt_object_exists(dto))
-		return dto;
-
-	th = dt_trans_create(env, dt);
-	if (IS_ERR(th)) {
-		rc = PTR_ERR(th);
-		goto out;
-	}
-
-	rc = dt_declare_create(env, dto, at, NULL, dof, th);
-	if (rc)
-		goto trans_stop;
-
-	rc = dt_trans_start_local(env, dt, th);
-	if (rc)
-		goto trans_stop;
-
-	dt_write_lock(env, dto, 0);
-	if (dt_object_exists(dto)) {
-		rc = 0;
-		goto unlock;
-	}
-
-	CDEBUG(D_OTHER, "create new object "DFID"\n", PFID(fid));
-
-	rc = dt_create(env, dto, at, NULL, dof, th);
-	if (rc)
-		goto unlock;
-	LASSERT(dt_object_exists(dto));
-unlock:
-	dt_write_unlock(env, dto);
-trans_stop:
-	dt_trans_stop(env, dt, th);
-out:
-	if (rc) {
-		lu_object_put(env, &dto->do_lu);
-		return ERR_PTR(rc);
-	}
-	return dto;
-}
-EXPORT_SYMBOL(dt_find_or_create);
-
-/* dt class init function. */
-int dt_global_init(void)
-{
-	LU_CONTEXT_KEY_INIT(&dt_key);
-	return lu_context_key_register(&dt_key);
-}
-
-void dt_global_fini(void)
-{
-	lu_context_key_degister(&dt_key);
-}
-
-/**
- * Generic read helper. May return an error for partial reads.
- *
- * \param env  lustre environment
- * \param dt   object to be read
- * \param buf  lu_buf to be filled, with buffer pointer and length
- * \param pos position to start reading, updated as data is read
- *
- * \retval real size of data read
- * \retval -ve errno on failure
- */
-int dt_read(const struct lu_env *env, struct dt_object *dt,
-	    struct lu_buf *buf, loff_t *pos)
-{
-	LASSERTF(dt != NULL, "dt is NULL when we want to read record\n");
-	return dt->do_body_ops->dbo_read(env, dt, buf, pos, BYPASS_CAPA);
-}
-EXPORT_SYMBOL(dt_read);
-
-/**
- * Read structures of fixed size from storage.  Unlike dt_read(), using
- * dt_record_read() will return an error for partial reads.
- *
- * \param env  lustre environment
- * \param dt   object to be read
- * \param buf  lu_buf to be filled, with buffer pointer and length
- * \param pos position to start reading, updated as data is read
- *
- * \retval 0 on successfully reading full buffer
- * \retval -EFAULT on short read
- * \retval -ve errno on failure
- */
-int dt_record_read(const struct lu_env *env, struct dt_object *dt,
-		   struct lu_buf *buf, loff_t *pos)
-{
-	int rc;
-
-	LASSERTF(dt != NULL, "dt is NULL when we want to read record\n");
-
-	rc = dt->do_body_ops->dbo_read(env, dt, buf, pos, BYPASS_CAPA);
-
-	if (rc == buf->lb_len)
-		rc = 0;
-	else if (rc >= 0)
-		rc = -EFAULT;
-	return rc;
-}
-EXPORT_SYMBOL(dt_record_read);
-
-int dt_record_write(const struct lu_env *env, struct dt_object *dt,
-		    const struct lu_buf *buf, loff_t *pos, struct thandle *th)
-{
-	int rc;
-
-	LASSERTF(dt != NULL, "dt is NULL when we want to write record\n");
-	LASSERT(th != NULL);
-	LASSERT(dt->do_body_ops);
-	LASSERT(dt->do_body_ops->dbo_write);
-	rc = dt->do_body_ops->dbo_write(env, dt, buf, pos, th, BYPASS_CAPA, 1);
-	if (rc == buf->lb_len)
-		rc = 0;
-	else if (rc >= 0)
-		rc = -EFAULT;
-	return rc;
-}
-EXPORT_SYMBOL(dt_record_write);
-
-int dt_declare_version_set(const struct lu_env *env, struct dt_object *o,
-			   struct thandle *th)
-{
-	struct lu_buf vbuf;
-	char *xname = XATTR_NAME_VERSION;
-
-	LASSERT(o);
-	vbuf.lb_buf = NULL;
-	vbuf.lb_len = sizeof(dt_obj_version_t);
-	return dt_declare_xattr_set(env, o, &vbuf, xname, 0, th);
-
-}
-EXPORT_SYMBOL(dt_declare_version_set);
-
-void dt_version_set(const struct lu_env *env, struct dt_object *o,
-		    dt_obj_version_t version, struct thandle *th)
-{
-	struct lu_buf vbuf;
-	char *xname = XATTR_NAME_VERSION;
-	int rc;
-
-	LASSERT(o);
-	vbuf.lb_buf = &version;
-	vbuf.lb_len = sizeof(version);
-
-	rc = dt_xattr_set(env, o, &vbuf, xname, 0, th, BYPASS_CAPA);
-	if (rc < 0)
-		CDEBUG(D_INODE, "Can't set version, rc %d\n", rc);
-	return;
-}
-EXPORT_SYMBOL(dt_version_set);
-
-dt_obj_version_t dt_version_get(const struct lu_env *env, struct dt_object *o)
-{
-	struct lu_buf vbuf;
-	char *xname = XATTR_NAME_VERSION;
-	dt_obj_version_t version;
-	int rc;
-
-	LASSERT(o);
-	vbuf.lb_buf = &version;
-	vbuf.lb_len = sizeof(version);
-	rc = dt_xattr_get(env, o, &vbuf, xname, BYPASS_CAPA);
-	if (rc != sizeof(version)) {
-		CDEBUG(D_INODE, "Can't get version, rc %d\n", rc);
-		version = 0;
-	}
-	return version;
-}
-EXPORT_SYMBOL(dt_version_get);
-
-/* list of all supported index types */
-
-/* directories */
-const struct dt_index_features dt_directory_features;
-EXPORT_SYMBOL(dt_directory_features);
-
-/* scrub iterator */
-const struct dt_index_features dt_otable_features;
-EXPORT_SYMBOL(dt_otable_features);
-
-/* lfsck */
-const struct dt_index_features dt_lfsck_features = {
-	.dif_flags		= DT_IND_UPDATE,
-	.dif_keysize_min	= sizeof(struct lu_fid),
-	.dif_keysize_max	= sizeof(struct lu_fid),
-	.dif_recsize_min	= sizeof(__u8),
-	.dif_recsize_max	= sizeof(__u8),
-	.dif_ptrsize		= 4
-};
-EXPORT_SYMBOL(dt_lfsck_features);
-
-/* accounting indexes */
-const struct dt_index_features dt_acct_features = {
-	.dif_flags		= DT_IND_UPDATE,
-	.dif_keysize_min	= sizeof(__u64), /* 64-bit uid/gid */
-	.dif_keysize_max	= sizeof(__u64), /* 64-bit uid/gid */
-	.dif_recsize_min	= sizeof(struct lquota_acct_rec), /* 16 bytes */
-	.dif_recsize_max	= sizeof(struct lquota_acct_rec), /* 16 bytes */
-	.dif_ptrsize		= 4
-};
-EXPORT_SYMBOL(dt_acct_features);
-
-/* global quota files */
-const struct dt_index_features dt_quota_glb_features = {
-	.dif_flags		= DT_IND_UPDATE,
-	/* a different key would have to be used for per-directory quota */
-	.dif_keysize_min	= sizeof(__u64), /* 64-bit uid/gid */
-	.dif_keysize_max	= sizeof(__u64), /* 64-bit uid/gid */
-	.dif_recsize_min	= sizeof(struct lquota_glb_rec), /* 32 bytes */
-	.dif_recsize_max	= sizeof(struct lquota_glb_rec), /* 32 bytes */
-	.dif_ptrsize		= 4
-};
-EXPORT_SYMBOL(dt_quota_glb_features);
-
-/* slave quota files */
-const struct dt_index_features dt_quota_slv_features = {
-	.dif_flags		= DT_IND_UPDATE,
-	/* a different key would have to be used for per-directory quota */
-	.dif_keysize_min	= sizeof(__u64), /* 64-bit uid/gid */
-	.dif_keysize_max	= sizeof(__u64), /* 64-bit uid/gid */
-	.dif_recsize_min	= sizeof(struct lquota_slv_rec), /* 8 bytes */
-	.dif_recsize_max	= sizeof(struct lquota_slv_rec), /* 8 bytes */
-	.dif_ptrsize		= 4
-};
-EXPORT_SYMBOL(dt_quota_slv_features);
-
-/* helper function returning what dt_index_features structure should be used
- * based on the FID sequence. This is used by OBD_IDX_READ RPC */
-static inline const struct dt_index_features *dt_index_feat_select(__u64 seq,
-								   __u32 mode)
-{
-	if (seq == FID_SEQ_QUOTA_GLB) {
-		/* global quota index */
-		if (!S_ISREG(mode))
-			/* global quota index should be a regular file */
-			return ERR_PTR(-ENOENT);
-		return &dt_quota_glb_features;
-	} else if (seq == FID_SEQ_QUOTA) {
-		/* quota slave index */
-		if (!S_ISREG(mode))
-			/* slave index should be a regular file */
-			return ERR_PTR(-ENOENT);
-		return &dt_quota_slv_features;
-	} else if (seq >= FID_SEQ_NORMAL) {
-		/* object is part of the namespace, verify that it is a
-		 * directory */
-		if (!S_ISDIR(mode))
-			/* sorry, we can only deal with directory */
-			return ERR_PTR(-ENOTDIR);
-		return &dt_directory_features;
-	}
-
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-/*
- * Fill a lu_idxpage with key/record pairs read for transfer via OBD_IDX_READ
- * RPC
- *
- * \param env - is the environment passed by the caller
- * \param lp  - is a pointer to the lu_page to fill
- * \param nob - is the maximum number of bytes that should be copied
- * \param iops - is the index operation vector associated with the index object
- * \param it   - is a pointer to the current iterator
- * \param attr - is the index attribute to pass to iops->rec()
- * \param arg  - is a pointer to the idx_info structure
- */
-static int dt_index_page_build(const struct lu_env *env, union lu_page *lp,
-			       int nob, const struct dt_it_ops *iops,
-			       struct dt_it *it, __u32 attr, void *arg)
-{
-	struct idx_info		*ii = (struct idx_info *)arg;
-	struct lu_idxpage	*lip = &lp->lp_idx;
-	char			*entry;
-	int			 rc, size;
-
-	/* no support for variable key & record size for now */
-	LASSERT((ii->ii_flags & II_FL_VARKEY) == 0);
-	LASSERT((ii->ii_flags & II_FL_VARREC) == 0);
-
-	/* initialize the header of the new container */
-	memset(lip, 0, LIP_HDR_SIZE);
-	lip->lip_magic = LIP_MAGIC;
-	nob	   -= LIP_HDR_SIZE;
-
-	/* compute size needed to store a key/record pair */
-	size = ii->ii_recsize + ii->ii_keysize;
-	if ((ii->ii_flags & II_FL_NOHASH) == 0)
-		/* add hash if the client wants it */
-		size += sizeof(__u64);
-
-	entry = lip->lip_entries;
-	do {
-		char		*tmp_entry = entry;
-		struct dt_key	*key;
-		__u64		 hash;
-
-		/* fetch 64-bit hash value */
-		hash = iops->store(env, it);
-		ii->ii_hash_end = hash;
-
-		if (OBD_FAIL_CHECK(OBD_FAIL_OBD_IDX_READ_BREAK)) {
-			if (lip->lip_nr != 0) {
-				rc = 0;
-				goto out;
-			}
-		}
-
-		if (nob < size) {
-			if (lip->lip_nr == 0)
-				rc = -EINVAL;
-			else
-				rc = 0;
-			goto out;
-		}
-
-		if ((ii->ii_flags & II_FL_NOHASH) == 0) {
-			/* client wants to the 64-bit hash value associated with
-			 * each record */
-			memcpy(tmp_entry, &hash, sizeof(hash));
-			tmp_entry += sizeof(hash);
-		}
-
-		/* then the key value */
-		LASSERT(iops->key_size(env, it) == ii->ii_keysize);
-		key = iops->key(env, it);
-		memcpy(tmp_entry, key, ii->ii_keysize);
-		tmp_entry += ii->ii_keysize;
-
-		/* and finally the record */
-		rc = iops->rec(env, it, (struct dt_rec *)tmp_entry, attr);
-		if (rc != -ESTALE) {
-			if (rc != 0)
-				goto out;
-
-			/* hash/key/record successfully copied! */
-			lip->lip_nr++;
-			if (unlikely(lip->lip_nr == 1 && ii->ii_count == 0))
-				ii->ii_hash_start = hash;
-			entry = tmp_entry + ii->ii_recsize;
-			nob -= size;
-		}
-
-		/* move on to the next record */
-		do {
-			rc = iops->next(env, it);
-		} while (rc == -ESTALE);
-
-	} while (rc == 0);
-
-	goto out;
-out:
-	if (rc >= 0 && lip->lip_nr > 0)
-		/* one more container */
-		ii->ii_count++;
-	if (rc > 0)
-		/* no more entries */
-		ii->ii_hash_end = II_END_OFF;
-	return rc;
-}
-
-/*
- * Walk index and fill lu_page containers with key/record pairs
- *
- * \param env - is the environment passed by the caller
- * \param obj - is the index object to parse
- * \param rdpg - is the lu_rdpg descriptor associated with the transfer
- * \param filler - is the callback function responsible for filling a lu_page
- *		 with key/record pairs in the format wanted by the caller
- * \param arg    - is an opaq argument passed to the filler function
- *
- * \retval sum (in bytes) of all filled lu_pages
- * \retval -ve errno on failure
- */
-int dt_index_walk(const struct lu_env *env, struct dt_object *obj,
-		  const struct lu_rdpg *rdpg, dt_index_page_build_t filler,
-		  void *arg)
-{
-	struct dt_it		*it;
-	const struct dt_it_ops	*iops;
-	unsigned int		 pageidx, nob, nlupgs = 0;
-	int			 rc;
-
-	LASSERT(rdpg->rp_pages != NULL);
-	LASSERT(obj->do_index_ops != NULL);
-
-	nob = rdpg->rp_count;
-	if (nob <= 0)
-		return -EFAULT;
-
-	/* Iterate through index and fill containers from @rdpg */
-	iops = &obj->do_index_ops->dio_it;
-	LASSERT(iops != NULL);
-	it = iops->init(env, obj, rdpg->rp_attrs, BYPASS_CAPA);
-	if (IS_ERR(it))
-		return PTR_ERR(it);
-
-	rc = iops->load(env, it, rdpg->rp_hash);
-	if (rc == 0) {
-		/*
-		 * Iterator didn't find record with exactly the key requested.
-		 *
-		 * It is currently either
-		 *
-		 *     - positioned above record with key less than
-		 *     requested---skip it.
-		 *     - or not positioned at all (is in IAM_IT_SKEWED
-		 *     state)---position it on the next item.
-		 */
-		rc = iops->next(env, it);
-	} else if (rc > 0) {
-		rc = 0;
-	}
-
-	/* Fill containers one after the other. There might be multiple
-	 * containers per physical page.
-	 *
-	 * At this point and across for-loop:
-	 *  rc == 0 -> ok, proceed.
-	 *  rc >  0 -> end of index.
-	 *  rc <  0 -> error. */
-	for (pageidx = 0; rc == 0 && nob > 0; pageidx++) {
-		union lu_page	*lp;
-		int		 i;
-
-		LASSERT(pageidx < rdpg->rp_npages);
-		lp = kmap(rdpg->rp_pages[pageidx]);
-
-		/* fill lu pages */
-		for (i = 0; i < LU_PAGE_COUNT; i++, lp++, nob -= LU_PAGE_SIZE) {
-			rc = filler(env, lp, min_t(int, nob, LU_PAGE_SIZE),
-				    iops, it, rdpg->rp_attrs, arg);
-			if (rc < 0)
-				break;
-			/* one more lu_page */
-			nlupgs++;
-			if (rc > 0)
-				/* end of index */
-				break;
-		}
-		kunmap(rdpg->rp_pages[i]);
-	}
-
-	iops->put(env, it);
-	iops->fini(env, it);
-
-	if (rc >= 0)
-		rc = min_t(unsigned int, nlupgs * LU_PAGE_SIZE, rdpg->rp_count);
-
-	return rc;
-}
-EXPORT_SYMBOL(dt_index_walk);
-
-/**
- * Walk key/record pairs of an index and copy them into 4KB containers to be
- * transferred over the network. This is the common handler for OBD_IDX_READ
- * RPC processing.
- *
- * \param env - is the environment passed by the caller
- * \param dev - is the dt_device storing the index
- * \param ii  - is the idx_info structure packed by the client in the
- *	      OBD_IDX_READ request
- * \param rdpg - is the lu_rdpg descriptor
- *
- * \retval on success, return sum (in bytes) of all filled containers
- * \retval appropriate error otherwise.
- */
-int dt_index_read(const struct lu_env *env, struct dt_device *dev,
-		  struct idx_info *ii, const struct lu_rdpg *rdpg)
-{
-	const struct dt_index_features	*feat;
-	struct dt_object		*obj;
-	int				 rc;
-
-	/* rp_count shouldn't be null and should be a multiple of the container
-	 * size */
-	if (rdpg->rp_count <= 0 && (rdpg->rp_count & (LU_PAGE_SIZE - 1)) != 0)
-		return -EFAULT;
-
-	if (fid_seq(&ii->ii_fid) >= FID_SEQ_NORMAL)
-		/* we don't support directory transfer via OBD_IDX_READ for the
-		 * time being */
-		return -EOPNOTSUPP;
-
-	if (!fid_is_quota(&ii->ii_fid))
-		/* block access to all local files except quota files */
-		return -EPERM;
-
-	/* lookup index object subject to the transfer */
-	obj = dt_locate(env, dev, &ii->ii_fid);
-	if (IS_ERR(obj))
-		return PTR_ERR(obj);
-	if (dt_object_exists(obj) == 0) {
-		rc = -ENOENT;
-		goto out;
-	}
-
-	/* fetch index features associated with index object */
-	feat = dt_index_feat_select(fid_seq(&ii->ii_fid),
-				    lu_object_attr(&obj->do_lu));
-	if (IS_ERR(feat)) {
-		rc = PTR_ERR(feat);
-		goto out;
-	}
-
-	/* load index feature if not done already */
-	if (obj->do_index_ops == NULL) {
-		rc = obj->do_ops->do_index_try(env, obj, feat);
-		if (rc)
-			goto out;
-	}
-
-	/* fill ii_flags with supported index features */
-	ii->ii_flags &= II_FL_NOHASH;
-
-	ii->ii_keysize = feat->dif_keysize_max;
-	if ((feat->dif_flags & DT_IND_VARKEY) != 0) {
-		/* key size is variable */
-		ii->ii_flags |= II_FL_VARKEY;
-		/* we don't support variable key size for the time being */
-		rc = -EOPNOTSUPP;
-		goto out;
-	}
-
-	ii->ii_recsize = feat->dif_recsize_max;
-	if ((feat->dif_flags & DT_IND_VARREC) != 0) {
-		/* record size is variable */
-		ii->ii_flags |= II_FL_VARREC;
-		/* we don't support variable record size for the time being */
-		rc = -EOPNOTSUPP;
-		goto out;
-	}
-
-	if ((feat->dif_flags & DT_IND_NONUNQ) != 0)
-		/* key isn't necessarily unique */
-		ii->ii_flags |= II_FL_NONUNQ;
-
-	dt_read_lock(env, obj, 0);
-	/* fetch object version before walking the index */
-	ii->ii_version = dt_version_get(env, obj);
-
-	/* walk the index and fill lu_idxpages with key/record pairs */
-	rc = dt_index_walk(env, obj, rdpg, dt_index_page_build, ii);
-	dt_read_unlock(env, obj);
-
-	if (rc == 0) {
-		/* index is empty */
-		LASSERT(ii->ii_count == 0);
-		ii->ii_hash_end = II_END_OFF;
-	}
-
-	goto out;
-out:
-	lu_object_put(env, &obj->do_lu);
-	return rc;
-}
-EXPORT_SYMBOL(dt_index_read);
-
-int lprocfs_dt_rd_blksize(char *page, char **start, off_t off,
-			  int count, int *eof, void *data)
-{
-	struct dt_device *dt = data;
-	struct obd_statfs osfs;
-	int rc = dt_statfs(NULL, dt, &osfs);
-
-	if (rc == 0) {
-		*eof = 1;
-		rc = snprintf(page, count, "%u\n",
-				(unsigned) osfs.os_bsize);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_dt_rd_blksize);
-
-int lprocfs_dt_rd_kbytestotal(char *page, char **start, off_t off,
-			      int count, int *eof, void *data)
-{
-	struct dt_device *dt = data;
-	struct obd_statfs osfs;
-	int rc = dt_statfs(NULL, dt, &osfs);
-
-	if (rc == 0) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_blocks;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		*eof = 1;
-		rc = snprintf(page, count, "%llu\n", result);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_dt_rd_kbytestotal);
-
-int lprocfs_dt_rd_kbytesfree(char *page, char **start, off_t off,
-			     int count, int *eof, void *data)
-{
-	struct dt_device *dt = data;
-	struct obd_statfs osfs;
-	int rc = dt_statfs(NULL, dt, &osfs);
-
-	if (rc == 0) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_bfree;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		*eof = 1;
-		rc = snprintf(page, count, "%llu\n", result);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_dt_rd_kbytesfree);
-
-int lprocfs_dt_rd_kbytesavail(char *page, char **start, off_t off,
-			      int count, int *eof, void *data)
-{
-	struct dt_device *dt = data;
-	struct obd_statfs osfs;
-	int rc = dt_statfs(NULL, dt, &osfs);
-
-	if (rc == 0) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_bavail;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		*eof = 1;
-		rc = snprintf(page, count, "%llu\n", result);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_dt_rd_kbytesavail);
-
-int lprocfs_dt_rd_filestotal(char *page, char **start, off_t off,
-			     int count, int *eof, void *data)
-{
-	struct dt_device *dt = data;
-	struct obd_statfs osfs;
-	int rc = dt_statfs(NULL, dt, &osfs);
-
-	if (rc == 0) {
-		*eof = 1;
-		rc = snprintf(page, count, "%llu\n", osfs.os_files);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_dt_rd_filestotal);
-
-int lprocfs_dt_rd_filesfree(char *page, char **start, off_t off,
-			    int count, int *eof, void *data)
-{
-	struct dt_device *dt = data;
-	struct obd_statfs osfs;
-	int rc = dt_statfs(NULL, dt, &osfs);
-
-	if (rc == 0) {
-		*eof = 1;
-		rc = snprintf(page, count, "%llu\n", osfs.os_ffree);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_dt_rd_filesfree);
diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
deleted file mode 100644
index 0ca730948f7a..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/genops.c
+++ /dev/null
@@ -1,1842 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/genops.c
- *
- * These are the only exported functions, they provide some generic
- * infrastructure for managing object devices
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-
-spinlock_t obd_types_lock;
-
-static struct kmem_cache *obd_device_cachep;
-struct kmem_cache *obdo_cachep;
-EXPORT_SYMBOL(obdo_cachep);
-static struct kmem_cache *import_cachep;
-
-static struct list_head      obd_zombie_imports;
-static struct list_head      obd_zombie_exports;
-static spinlock_t  obd_zombie_impexp_lock;
-static void obd_zombie_impexp_notify(void);
-static void obd_zombie_export_add(struct obd_export *exp);
-static void obd_zombie_import_add(struct obd_import *imp);
-static void print_export_data(struct obd_export *exp,
-			      const char *status, int locks);
-
-int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
-EXPORT_SYMBOL(ptlrpc_put_connection_superhack);
-
-/*
- * support functions: we could use inter-module communication, but this
- * is more portable to other OS's
- */
-static struct obd_device *obd_device_alloc(void)
-{
-	struct obd_device *obd;
-
-	OBD_SLAB_ALLOC_PTR_GFP(obd, obd_device_cachep, GFP_NOFS);
-	if (obd != NULL)
-		obd->obd_magic = OBD_DEVICE_MAGIC;
-	return obd;
-}
-
-static void obd_device_free(struct obd_device *obd)
-{
-	LASSERT(obd != NULL);
-	LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC, "obd %p obd_magic %08x != %08x\n",
-		 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
-	if (obd->obd_namespace != NULL) {
-		CERROR("obd %p: namespace %p was not properly cleaned up (obd_force=%d)!\n",
-		       obd, obd->obd_namespace, obd->obd_force);
-		LBUG();
-	}
-	lu_ref_fini(&obd->obd_reference);
-	OBD_SLAB_FREE_PTR(obd, obd_device_cachep);
-}
-
-struct obd_type *class_search_type(const char *name)
-{
-	struct list_head *tmp;
-	struct obd_type *type;
-
-	spin_lock(&obd_types_lock);
-	list_for_each(tmp, &obd_types) {
-		type = list_entry(tmp, struct obd_type, typ_chain);
-		if (strcmp(type->typ_name, name) == 0) {
-			spin_unlock(&obd_types_lock);
-			return type;
-		}
-	}
-	spin_unlock(&obd_types_lock);
-	return NULL;
-}
-EXPORT_SYMBOL(class_search_type);
-
-struct obd_type *class_get_type(const char *name)
-{
-	struct obd_type *type = class_search_type(name);
-
-	if (!type) {
-		const char *modname = name;
-
-		if (strcmp(modname, "obdfilter") == 0)
-			modname = "ofd";
-
-		if (strcmp(modname, LUSTRE_LWP_NAME) == 0)
-			modname = LUSTRE_OSP_NAME;
-
-		if (!strncmp(modname, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME)))
-			modname = LUSTRE_MDT_NAME;
-
-		if (!request_module("%s", modname)) {
-			CDEBUG(D_INFO, "Loaded module '%s'\n", modname);
-			type = class_search_type(name);
-		} else {
-			LCONSOLE_ERROR_MSG(0x158, "Can't load module '%s'\n",
-					   modname);
-		}
-	}
-	if (type) {
-		spin_lock(&type->obd_type_lock);
-		type->typ_refcnt++;
-		try_module_get(type->typ_dt_ops->o_owner);
-		spin_unlock(&type->obd_type_lock);
-	}
-	return type;
-}
-EXPORT_SYMBOL(class_get_type);
-
-void class_put_type(struct obd_type *type)
-{
-	LASSERT(type);
-	spin_lock(&type->obd_type_lock);
-	type->typ_refcnt--;
-	module_put(type->typ_dt_ops->o_owner);
-	spin_unlock(&type->obd_type_lock);
-}
-EXPORT_SYMBOL(class_put_type);
-
-#define CLASS_MAX_NAME 1024
-
-int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops,
-			const char *name,
-			struct lu_device_type *ldt)
-{
-	struct obd_type *type;
-	int rc = 0;
-
-	/* sanity check */
-	LASSERT(strnlen(name, CLASS_MAX_NAME) < CLASS_MAX_NAME);
-
-	if (class_search_type(name)) {
-		CDEBUG(D_IOCTL, "Type %s already registered\n", name);
-		return -EEXIST;
-	}
-
-	rc = -ENOMEM;
-	type = kzalloc(sizeof(*type), GFP_NOFS);
-	if (!type)
-		return rc;
-
-	type->typ_dt_ops = kzalloc(sizeof(*type->typ_dt_ops), GFP_NOFS);
-	type->typ_md_ops = kzalloc(sizeof(*type->typ_md_ops), GFP_NOFS);
-	type->typ_name = kzalloc(strlen(name) + 1, GFP_NOFS);
-
-	if (type->typ_dt_ops == NULL ||
-	    type->typ_md_ops == NULL ||
-	    type->typ_name == NULL)
-		goto failed;
-
-	*(type->typ_dt_ops) = *dt_ops;
-	/* md_ops is optional */
-	if (md_ops)
-		*(type->typ_md_ops) = *md_ops;
-	strcpy(type->typ_name, name);
-	spin_lock_init(&type->obd_type_lock);
-
-	type->typ_debugfs_entry = ldebugfs_register(type->typ_name,
-						    debugfs_lustre_root,
-						    NULL, type);
-	if (IS_ERR_OR_NULL(type->typ_debugfs_entry)) {
-		rc = type->typ_debugfs_entry ? PTR_ERR(type->typ_debugfs_entry)
-					     : -ENOMEM;
-		type->typ_debugfs_entry = NULL;
-		goto failed;
-	}
-
-	type->typ_kobj = kobject_create_and_add(type->typ_name, lustre_kobj);
-	if (!type->typ_kobj) {
-		rc = -ENOMEM;
-		goto failed;
-	}
-
-	if (ldt != NULL) {
-		type->typ_lu = ldt;
-		rc = lu_device_type_init(ldt);
-		if (rc != 0)
-			goto failed;
-	}
-
-	spin_lock(&obd_types_lock);
-	list_add(&type->typ_chain, &obd_types);
-	spin_unlock(&obd_types_lock);
-
-	return 0;
-
- failed:
-	if (type->typ_kobj)
-		kobject_put(type->typ_kobj);
-	kfree(type->typ_name);
-	kfree(type->typ_md_ops);
-	kfree(type->typ_dt_ops);
-	kfree(type);
-	return rc;
-}
-EXPORT_SYMBOL(class_register_type);
-
-int class_unregister_type(const char *name)
-{
-	struct obd_type *type = class_search_type(name);
-
-	if (!type) {
-		CERROR("unknown obd type\n");
-		return -EINVAL;
-	}
-
-	if (type->typ_refcnt) {
-		CERROR("type %s has refcount (%d)\n", name, type->typ_refcnt);
-		/* This is a bad situation, let's make the best of it */
-		/* Remove ops, but leave the name for debugging */
-		kfree(type->typ_dt_ops);
-		kfree(type->typ_md_ops);
-		return -EBUSY;
-	}
-
-	if (type->typ_kobj)
-		kobject_put(type->typ_kobj);
-
-	if (!IS_ERR_OR_NULL(type->typ_debugfs_entry))
-		ldebugfs_remove(&type->typ_debugfs_entry);
-
-	if (type->typ_lu)
-		lu_device_type_fini(type->typ_lu);
-
-	spin_lock(&obd_types_lock);
-	list_del(&type->typ_chain);
-	spin_unlock(&obd_types_lock);
-	kfree(type->typ_name);
-	kfree(type->typ_dt_ops);
-	kfree(type->typ_md_ops);
-	kfree(type);
-	return 0;
-} /* class_unregister_type */
-EXPORT_SYMBOL(class_unregister_type);
-
-/**
- * Create a new obd device.
- *
- * Find an empty slot in ::obd_devs[], create a new obd device in it.
- *
- * \param[in] type_name obd device type string.
- * \param[in] name      obd device name.
- *
- * \retval NULL if create fails, otherwise return the obd device
- *	 pointer created.
- */
-struct obd_device *class_newdev(const char *type_name, const char *name)
-{
-	struct obd_device *result = NULL;
-	struct obd_device *newdev;
-	struct obd_type *type = NULL;
-	int i;
-	int new_obd_minor = 0;
-
-	if (strlen(name) >= MAX_OBD_NAME) {
-		CERROR("name/uuid must be < %u bytes long\n", MAX_OBD_NAME);
-		return ERR_PTR(-EINVAL);
-	}
-
-	type = class_get_type(type_name);
-	if (type == NULL) {
-		CERROR("OBD: unknown type: %s\n", type_name);
-		return ERR_PTR(-ENODEV);
-	}
-
-	newdev = obd_device_alloc();
-	if (newdev == NULL) {
-		result = ERR_PTR(-ENOMEM);
-		goto out_type;
-	}
-
-	LASSERT(newdev->obd_magic == OBD_DEVICE_MAGIC);
-
-	write_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd = class_num2obd(i);
-
-		if (obd && (strcmp(name, obd->obd_name) == 0)) {
-			CERROR("Device %s already exists at %d, won't add\n",
-			       name, i);
-			if (result) {
-				LASSERTF(result->obd_magic == OBD_DEVICE_MAGIC,
-					 "%p obd_magic %08x != %08x\n", result,
-					 result->obd_magic, OBD_DEVICE_MAGIC);
-				LASSERTF(result->obd_minor == new_obd_minor,
-					 "%p obd_minor %d != %d\n", result,
-					 result->obd_minor, new_obd_minor);
-
-				obd_devs[result->obd_minor] = NULL;
-				result->obd_name[0] = '\0';
-			 }
-			result = ERR_PTR(-EEXIST);
-			break;
-		}
-		if (!result && !obd) {
-			result = newdev;
-			result->obd_minor = i;
-			new_obd_minor = i;
-			result->obd_type = type;
-			strncpy(result->obd_name, name,
-				sizeof(result->obd_name) - 1);
-			obd_devs[i] = result;
-		}
-	}
-	write_unlock(&obd_dev_lock);
-
-	if (result == NULL && i >= class_devno_max()) {
-		CERROR("all %u OBD devices used, increase MAX_OBD_DEVICES\n",
-		       class_devno_max());
-		result = ERR_PTR(-EOVERFLOW);
-		goto out;
-	}
-
-	if (IS_ERR(result))
-		goto out;
-
-	CDEBUG(D_IOCTL, "Adding new device %s (%p)\n",
-	       result->obd_name, result);
-
-	return result;
-out:
-	obd_device_free(newdev);
-out_type:
-	class_put_type(type);
-	return result;
-}
-
-void class_release_dev(struct obd_device *obd)
-{
-	struct obd_type *obd_type = obd->obd_type;
-
-	LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC, "%p obd_magic %08x != %08x\n",
-		 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
-	LASSERTF(obd == obd_devs[obd->obd_minor], "obd %p != obd_devs[%d] %p\n",
-		 obd, obd->obd_minor, obd_devs[obd->obd_minor]);
-	LASSERT(obd_type != NULL);
-
-	CDEBUG(D_INFO, "Release obd device %s at %d obd_type name =%s\n",
-	       obd->obd_name, obd->obd_minor, obd->obd_type->typ_name);
-
-	write_lock(&obd_dev_lock);
-	obd_devs[obd->obd_minor] = NULL;
-	write_unlock(&obd_dev_lock);
-	obd_device_free(obd);
-
-	class_put_type(obd_type);
-}
-
-int class_name2dev(const char *name)
-{
-	int i;
-
-	if (!name)
-		return -1;
-
-	read_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd = class_num2obd(i);
-
-		if (obd && strcmp(name, obd->obd_name) == 0) {
-			/* Make sure we finished attaching before we give
-			   out any references */
-			LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-			if (obd->obd_attached) {
-				read_unlock(&obd_dev_lock);
-				return i;
-			}
-			break;
-		}
-	}
-	read_unlock(&obd_dev_lock);
-
-	return -1;
-}
-EXPORT_SYMBOL(class_name2dev);
-
-struct obd_device *class_name2obd(const char *name)
-{
-	int dev = class_name2dev(name);
-
-	if (dev < 0 || dev > class_devno_max())
-		return NULL;
-	return class_num2obd(dev);
-}
-EXPORT_SYMBOL(class_name2obd);
-
-int class_uuid2dev(struct obd_uuid *uuid)
-{
-	int i;
-
-	read_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd = class_num2obd(i);
-
-		if (obd && obd_uuid_equals(uuid, &obd->obd_uuid)) {
-			LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-			read_unlock(&obd_dev_lock);
-			return i;
-		}
-	}
-	read_unlock(&obd_dev_lock);
-
-	return -1;
-}
-EXPORT_SYMBOL(class_uuid2dev);
-
-struct obd_device *class_uuid2obd(struct obd_uuid *uuid)
-{
-	int dev = class_uuid2dev(uuid);
-	if (dev < 0)
-		return NULL;
-	return class_num2obd(dev);
-}
-EXPORT_SYMBOL(class_uuid2obd);
-
-/**
- * Get obd device from ::obd_devs[]
- *
- * \param num [in] array index
- *
- * \retval NULL if ::obd_devs[\a num] does not contains an obd device
- *	 otherwise return the obd device there.
- */
-struct obd_device *class_num2obd(int num)
-{
-	struct obd_device *obd = NULL;
-
-	if (num < class_devno_max()) {
-		obd = obd_devs[num];
-		if (obd == NULL)
-			return NULL;
-
-		LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
-			 "%p obd_magic %08x != %08x\n",
-			 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
-		LASSERTF(obd->obd_minor == num,
-			 "%p obd_minor %0d != %0d\n",
-			 obd, obd->obd_minor, num);
-	}
-
-	return obd;
-}
-EXPORT_SYMBOL(class_num2obd);
-
-/**
- * Get obd devices count. Device in any
- *    state are counted
- * \retval obd device count
- */
-int get_devices_count(void)
-{
-	int index, max_index = class_devno_max(), dev_count = 0;
-
-	read_lock(&obd_dev_lock);
-	for (index = 0; index <= max_index; index++) {
-		struct obd_device *obd = class_num2obd(index);
-		if (obd != NULL)
-			dev_count++;
-	}
-	read_unlock(&obd_dev_lock);
-
-	return dev_count;
-}
-EXPORT_SYMBOL(get_devices_count);
-
-void class_obd_list(void)
-{
-	char *status;
-	int i;
-
-	read_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd = class_num2obd(i);
-
-		if (obd == NULL)
-			continue;
-		if (obd->obd_stopping)
-			status = "ST";
-		else if (obd->obd_set_up)
-			status = "UP";
-		else if (obd->obd_attached)
-			status = "AT";
-		else
-			status = "--";
-		LCONSOLE(D_CONFIG, "%3d %s %s %s %s %d\n",
-			 i, status, obd->obd_type->typ_name,
-			 obd->obd_name, obd->obd_uuid.uuid,
-			 atomic_read(&obd->obd_refcount));
-	}
-	read_unlock(&obd_dev_lock);
-	return;
-}
-
-/* Search for a client OBD connected to tgt_uuid.  If grp_uuid is
-   specified, then only the client with that uuid is returned,
-   otherwise any client connected to the tgt is returned. */
-struct obd_device *class_find_client_obd(struct obd_uuid *tgt_uuid,
-					  const char *typ_name,
-					  struct obd_uuid *grp_uuid)
-{
-	int i;
-
-	read_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd = class_num2obd(i);
-
-		if (obd == NULL)
-			continue;
-		if ((strncmp(obd->obd_type->typ_name, typ_name,
-			     strlen(typ_name)) == 0)) {
-			if (obd_uuid_equals(tgt_uuid,
-					    &obd->u.cli.cl_target_uuid) &&
-			    ((grp_uuid)? obd_uuid_equals(grp_uuid,
-							 &obd->obd_uuid) : 1)) {
-				read_unlock(&obd_dev_lock);
-				return obd;
-			}
-		}
-	}
-	read_unlock(&obd_dev_lock);
-
-	return NULL;
-}
-EXPORT_SYMBOL(class_find_client_obd);
-
-/* Iterate the obd_device list looking devices have grp_uuid. Start
-   searching at *next, and if a device is found, the next index to look
-   at is saved in *next. If next is NULL, then the first matching device
-   will always be returned. */
-struct obd_device *class_devices_in_group(struct obd_uuid *grp_uuid, int *next)
-{
-	int i;
-
-	if (next == NULL)
-		i = 0;
-	else if (*next >= 0 && *next < class_devno_max())
-		i = *next;
-	else
-		return NULL;
-
-	read_lock(&obd_dev_lock);
-	for (; i < class_devno_max(); i++) {
-		struct obd_device *obd = class_num2obd(i);
-
-		if (obd == NULL)
-			continue;
-		if (obd_uuid_equals(grp_uuid, &obd->obd_uuid)) {
-			if (next != NULL)
-				*next = i+1;
-			read_unlock(&obd_dev_lock);
-			return obd;
-		}
-	}
-	read_unlock(&obd_dev_lock);
-
-	return NULL;
-}
-EXPORT_SYMBOL(class_devices_in_group);
-
-/**
- * to notify sptlrpc log for \a fsname has changed, let every relevant OBD
- * adjust sptlrpc settings accordingly.
- */
-int class_notify_sptlrpc_conf(const char *fsname, int namelen)
-{
-	struct obd_device  *obd;
-	const char	 *type;
-	int		 i, rc = 0, rc2;
-
-	LASSERT(namelen > 0);
-
-	read_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		obd = class_num2obd(i);
-
-		if (obd == NULL || obd->obd_set_up == 0 || obd->obd_stopping)
-			continue;
-
-		/* only notify mdc, osc, mdt, ost */
-		type = obd->obd_type->typ_name;
-		if (strcmp(type, LUSTRE_MDC_NAME) != 0 &&
-		    strcmp(type, LUSTRE_OSC_NAME) != 0 &&
-		    strcmp(type, LUSTRE_MDT_NAME) != 0 &&
-		    strcmp(type, LUSTRE_OST_NAME) != 0)
-			continue;
-
-		if (strncmp(obd->obd_name, fsname, namelen))
-			continue;
-
-		class_incref(obd, __func__, obd);
-		read_unlock(&obd_dev_lock);
-		rc2 = obd_set_info_async(NULL, obd->obd_self_export,
-					 sizeof(KEY_SPTLRPC_CONF),
-					 KEY_SPTLRPC_CONF, 0, NULL, NULL);
-		rc = rc ? rc : rc2;
-		class_decref(obd, __func__, obd);
-		read_lock(&obd_dev_lock);
-	}
-	read_unlock(&obd_dev_lock);
-	return rc;
-}
-EXPORT_SYMBOL(class_notify_sptlrpc_conf);
-
-void obd_cleanup_caches(void)
-{
-	if (obd_device_cachep) {
-		kmem_cache_destroy(obd_device_cachep);
-		obd_device_cachep = NULL;
-	}
-	if (obdo_cachep) {
-		kmem_cache_destroy(obdo_cachep);
-		obdo_cachep = NULL;
-	}
-	if (import_cachep) {
-		kmem_cache_destroy(import_cachep);
-		import_cachep = NULL;
-	}
-	if (capa_cachep) {
-		kmem_cache_destroy(capa_cachep);
-		capa_cachep = NULL;
-	}
-}
-
-int obd_init_caches(void)
-{
-	LASSERT(obd_device_cachep == NULL);
-	obd_device_cachep = kmem_cache_create("ll_obd_dev_cache",
-						 sizeof(struct obd_device),
-						 0, 0, NULL);
-	if (!obd_device_cachep)
-		goto out;
-
-	LASSERT(obdo_cachep == NULL);
-	obdo_cachep = kmem_cache_create("ll_obdo_cache", sizeof(struct obdo),
-					   0, 0, NULL);
-	if (!obdo_cachep)
-		goto out;
-
-	LASSERT(import_cachep == NULL);
-	import_cachep = kmem_cache_create("ll_import_cache",
-					     sizeof(struct obd_import),
-					     0, 0, NULL);
-	if (!import_cachep)
-		goto out;
-
-	LASSERT(capa_cachep == NULL);
-	capa_cachep = kmem_cache_create("capa_cache",
-					   sizeof(struct obd_capa), 0, 0, NULL);
-	if (!capa_cachep)
-		goto out;
-
-	return 0;
- out:
-	obd_cleanup_caches();
-	return -ENOMEM;
-
-}
-
-/* map connection to client */
-struct obd_export *class_conn2export(struct lustre_handle *conn)
-{
-	struct obd_export *export;
-
-	if (!conn) {
-		CDEBUG(D_CACHE, "looking for null handle\n");
-		return NULL;
-	}
-
-	if (conn->cookie == -1) {  /* this means assign a new connection */
-		CDEBUG(D_CACHE, "want a new connection\n");
-		return NULL;
-	}
-
-	CDEBUG(D_INFO, "looking for export cookie %#llx\n", conn->cookie);
-	export = class_handle2object(conn->cookie);
-	return export;
-}
-EXPORT_SYMBOL(class_conn2export);
-
-struct obd_device *class_exp2obd(struct obd_export *exp)
-{
-	if (exp)
-		return exp->exp_obd;
-	return NULL;
-}
-EXPORT_SYMBOL(class_exp2obd);
-
-struct obd_device *class_conn2obd(struct lustre_handle *conn)
-{
-	struct obd_export *export;
-	export = class_conn2export(conn);
-	if (export) {
-		struct obd_device *obd = export->exp_obd;
-		class_export_put(export);
-		return obd;
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(class_conn2obd);
-
-struct obd_import *class_exp2cliimp(struct obd_export *exp)
-{
-	struct obd_device *obd = exp->exp_obd;
-	if (obd == NULL)
-		return NULL;
-	return obd->u.cli.cl_import;
-}
-EXPORT_SYMBOL(class_exp2cliimp);
-
-struct obd_import *class_conn2cliimp(struct lustre_handle *conn)
-{
-	struct obd_device *obd = class_conn2obd(conn);
-	if (obd == NULL)
-		return NULL;
-	return obd->u.cli.cl_import;
-}
-EXPORT_SYMBOL(class_conn2cliimp);
-
-/* Export management functions */
-static void class_export_destroy(struct obd_export *exp)
-{
-	struct obd_device *obd = exp->exp_obd;
-
-	LASSERT_ATOMIC_ZERO(&exp->exp_refcount);
-	LASSERT(obd != NULL);
-
-	CDEBUG(D_IOCTL, "destroying export %p/%s for %s\n", exp,
-	       exp->exp_client_uuid.uuid, obd->obd_name);
-
-	/* "Local" exports (lctl, LOV->{mdc,osc}) have no connection. */
-	if (exp->exp_connection)
-		ptlrpc_put_connection_superhack(exp->exp_connection);
-
-	LASSERT(list_empty(&exp->exp_outstanding_replies));
-	LASSERT(list_empty(&exp->exp_uncommitted_replies));
-	LASSERT(list_empty(&exp->exp_req_replay_queue));
-	LASSERT(list_empty(&exp->exp_hp_rpcs));
-	obd_destroy_export(exp);
-	class_decref(obd, "export", exp);
-
-	OBD_FREE_RCU(exp, sizeof(*exp), &exp->exp_handle);
-}
-
-static void export_handle_addref(void *export)
-{
-	class_export_get(export);
-}
-
-static struct portals_handle_ops export_handle_ops = {
-	.hop_addref = export_handle_addref,
-	.hop_free   = NULL,
-};
-
-struct obd_export *class_export_get(struct obd_export *exp)
-{
-	atomic_inc(&exp->exp_refcount);
-	CDEBUG(D_INFO, "GETting export %p : new refcount %d\n", exp,
-	       atomic_read(&exp->exp_refcount));
-	return exp;
-}
-EXPORT_SYMBOL(class_export_get);
-
-void class_export_put(struct obd_export *exp)
-{
-	LASSERT(exp != NULL);
-	LASSERT_ATOMIC_GT_LT(&exp->exp_refcount, 0, LI_POISON);
-	CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", exp,
-	       atomic_read(&exp->exp_refcount) - 1);
-
-	if (atomic_dec_and_test(&exp->exp_refcount)) {
-		LASSERT(!list_empty(&exp->exp_obd_chain));
-		CDEBUG(D_IOCTL, "final put %p/%s\n",
-		       exp, exp->exp_client_uuid.uuid);
-
-		/* release nid stat refererence */
-		lprocfs_exp_cleanup(exp);
-
-		obd_zombie_export_add(exp);
-	}
-}
-EXPORT_SYMBOL(class_export_put);
-
-/* Creates a new export, adds it to the hash table, and returns a
- * pointer to it. The refcount is 2: one for the hash reference, and
- * one for the pointer returned by this function. */
-struct obd_export *class_new_export(struct obd_device *obd,
-				    struct obd_uuid *cluuid)
-{
-	struct obd_export *export;
-	struct cfs_hash *hash = NULL;
-	int rc = 0;
-
-	export = kzalloc(sizeof(*export), GFP_NOFS);
-	if (!export)
-		return ERR_PTR(-ENOMEM);
-
-	export->exp_conn_cnt = 0;
-	export->exp_lock_hash = NULL;
-	export->exp_flock_hash = NULL;
-	atomic_set(&export->exp_refcount, 2);
-	atomic_set(&export->exp_rpc_count, 0);
-	atomic_set(&export->exp_cb_count, 0);
-	atomic_set(&export->exp_locks_count, 0);
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-	INIT_LIST_HEAD(&export->exp_locks_list);
-	spin_lock_init(&export->exp_locks_list_guard);
-#endif
-	atomic_set(&export->exp_replay_count, 0);
-	export->exp_obd = obd;
-	INIT_LIST_HEAD(&export->exp_outstanding_replies);
-	spin_lock_init(&export->exp_uncommitted_replies_lock);
-	INIT_LIST_HEAD(&export->exp_uncommitted_replies);
-	INIT_LIST_HEAD(&export->exp_req_replay_queue);
-	INIT_LIST_HEAD(&export->exp_handle.h_link);
-	INIT_LIST_HEAD(&export->exp_hp_rpcs);
-	class_handle_hash(&export->exp_handle, &export_handle_ops);
-	export->exp_last_request_time = get_seconds();
-	spin_lock_init(&export->exp_lock);
-	spin_lock_init(&export->exp_rpc_lock);
-	INIT_HLIST_NODE(&export->exp_uuid_hash);
-	INIT_HLIST_NODE(&export->exp_nid_hash);
-	spin_lock_init(&export->exp_bl_list_lock);
-	INIT_LIST_HEAD(&export->exp_bl_list);
-
-	export->exp_sp_peer = LUSTRE_SP_ANY;
-	export->exp_flvr.sf_rpc = SPTLRPC_FLVR_INVALID;
-	export->exp_client_uuid = *cluuid;
-	obd_init_export(export);
-
-	spin_lock(&obd->obd_dev_lock);
-	/* shouldn't happen, but might race */
-	if (obd->obd_stopping) {
-		rc = -ENODEV;
-		goto exit_unlock;
-	}
-
-	hash = cfs_hash_getref(obd->obd_uuid_hash);
-	if (hash == NULL) {
-		rc = -ENODEV;
-		goto exit_unlock;
-	}
-	spin_unlock(&obd->obd_dev_lock);
-
-	if (!obd_uuid_equals(cluuid, &obd->obd_uuid)) {
-		rc = cfs_hash_add_unique(hash, cluuid, &export->exp_uuid_hash);
-		if (rc != 0) {
-			LCONSOLE_WARN("%s: denying duplicate export for %s, %d\n",
-				      obd->obd_name, cluuid->uuid, rc);
-			rc = -EALREADY;
-			goto exit_err;
-		}
-	}
-
-	spin_lock(&obd->obd_dev_lock);
-	if (obd->obd_stopping) {
-		cfs_hash_del(hash, cluuid, &export->exp_uuid_hash);
-		rc = -ENODEV;
-		goto exit_unlock;
-	}
-
-	class_incref(obd, "export", export);
-	list_add(&export->exp_obd_chain, &export->exp_obd->obd_exports);
-	list_add_tail(&export->exp_obd_chain_timed,
-			  &export->exp_obd->obd_exports_timed);
-	export->exp_obd->obd_num_exports++;
-	spin_unlock(&obd->obd_dev_lock);
-	cfs_hash_putref(hash);
-	return export;
-
-exit_unlock:
-	spin_unlock(&obd->obd_dev_lock);
-exit_err:
-	if (hash)
-		cfs_hash_putref(hash);
-	class_handle_unhash(&export->exp_handle);
-	LASSERT(hlist_unhashed(&export->exp_uuid_hash));
-	obd_destroy_export(export);
-	kfree(export);
-	return ERR_PTR(rc);
-}
-EXPORT_SYMBOL(class_new_export);
-
-void class_unlink_export(struct obd_export *exp)
-{
-	class_handle_unhash(&exp->exp_handle);
-
-	spin_lock(&exp->exp_obd->obd_dev_lock);
-	/* delete an uuid-export hashitem from hashtables */
-	if (!hlist_unhashed(&exp->exp_uuid_hash))
-		cfs_hash_del(exp->exp_obd->obd_uuid_hash,
-			     &exp->exp_client_uuid,
-			     &exp->exp_uuid_hash);
-
-	list_move(&exp->exp_obd_chain, &exp->exp_obd->obd_unlinked_exports);
-	list_del_init(&exp->exp_obd_chain_timed);
-	exp->exp_obd->obd_num_exports--;
-	spin_unlock(&exp->exp_obd->obd_dev_lock);
-	class_export_put(exp);
-}
-EXPORT_SYMBOL(class_unlink_export);
-
-/* Import management functions */
-static void class_import_destroy(struct obd_import *imp)
-{
-	CDEBUG(D_IOCTL, "destroying import %p for %s\n", imp,
-		imp->imp_obd->obd_name);
-
-	LASSERT_ATOMIC_ZERO(&imp->imp_refcount);
-
-	ptlrpc_put_connection_superhack(imp->imp_connection);
-
-	while (!list_empty(&imp->imp_conn_list)) {
-		struct obd_import_conn *imp_conn;
-
-		imp_conn = list_entry(imp->imp_conn_list.next,
-					  struct obd_import_conn, oic_item);
-		list_del_init(&imp_conn->oic_item);
-		ptlrpc_put_connection_superhack(imp_conn->oic_conn);
-		kfree(imp_conn);
-	}
-
-	LASSERT(imp->imp_sec == NULL);
-	class_decref(imp->imp_obd, "import", imp);
-	OBD_FREE_RCU(imp, sizeof(*imp), &imp->imp_handle);
-}
-
-static void import_handle_addref(void *import)
-{
-	class_import_get(import);
-}
-
-static struct portals_handle_ops import_handle_ops = {
-	.hop_addref = import_handle_addref,
-	.hop_free   = NULL,
-};
-
-struct obd_import *class_import_get(struct obd_import *import)
-{
-	atomic_inc(&import->imp_refcount);
-	CDEBUG(D_INFO, "import %p refcount=%d obd=%s\n", import,
-	       atomic_read(&import->imp_refcount),
-	       import->imp_obd->obd_name);
-	return import;
-}
-EXPORT_SYMBOL(class_import_get);
-
-void class_import_put(struct obd_import *imp)
-{
-	LASSERT(list_empty(&imp->imp_zombie_chain));
-	LASSERT_ATOMIC_GT_LT(&imp->imp_refcount, 0, LI_POISON);
-
-	CDEBUG(D_INFO, "import %p refcount=%d obd=%s\n", imp,
-	       atomic_read(&imp->imp_refcount) - 1,
-	       imp->imp_obd->obd_name);
-
-	if (atomic_dec_and_test(&imp->imp_refcount)) {
-		CDEBUG(D_INFO, "final put import %p\n", imp);
-		obd_zombie_import_add(imp);
-	}
-
-	/* catch possible import put race */
-	LASSERT_ATOMIC_GE_LT(&imp->imp_refcount, 0, LI_POISON);
-}
-EXPORT_SYMBOL(class_import_put);
-
-static void init_imp_at(struct imp_at *at)
-{
-	int i;
-	at_init(&at->iat_net_latency, 0, 0);
-	for (i = 0; i < IMP_AT_MAX_PORTALS; i++) {
-		/* max service estimates are tracked on the server side, so
-		   don't use the AT history here, just use the last reported
-		   val. (But keep hist for proc histogram, worst_ever) */
-		at_init(&at->iat_service_estimate[i], INITIAL_CONNECT_TIMEOUT,
-			AT_FLG_NOHIST);
-	}
-}
-
-struct obd_import *class_new_import(struct obd_device *obd)
-{
-	struct obd_import *imp;
-
-	imp = kzalloc(sizeof(*imp), GFP_NOFS);
-	if (!imp)
-		return NULL;
-
-	INIT_LIST_HEAD(&imp->imp_pinger_chain);
-	INIT_LIST_HEAD(&imp->imp_zombie_chain);
-	INIT_LIST_HEAD(&imp->imp_replay_list);
-	INIT_LIST_HEAD(&imp->imp_sending_list);
-	INIT_LIST_HEAD(&imp->imp_delayed_list);
-	INIT_LIST_HEAD(&imp->imp_committed_list);
-	imp->imp_replay_cursor = &imp->imp_committed_list;
-	spin_lock_init(&imp->imp_lock);
-	imp->imp_last_success_conn = 0;
-	imp->imp_state = LUSTRE_IMP_NEW;
-	imp->imp_obd = class_incref(obd, "import", imp);
-	mutex_init(&imp->imp_sec_mutex);
-	init_waitqueue_head(&imp->imp_recovery_waitq);
-
-	atomic_set(&imp->imp_refcount, 2);
-	atomic_set(&imp->imp_unregistering, 0);
-	atomic_set(&imp->imp_inflight, 0);
-	atomic_set(&imp->imp_replay_inflight, 0);
-	atomic_set(&imp->imp_inval_count, 0);
-	INIT_LIST_HEAD(&imp->imp_conn_list);
-	INIT_LIST_HEAD(&imp->imp_handle.h_link);
-	class_handle_hash(&imp->imp_handle, &import_handle_ops);
-	init_imp_at(&imp->imp_at);
-
-	/* the default magic is V2, will be used in connect RPC, and
-	 * then adjusted according to the flags in request/reply. */
-	imp->imp_msg_magic = LUSTRE_MSG_MAGIC_V2;
-
-	return imp;
-}
-EXPORT_SYMBOL(class_new_import);
-
-void class_destroy_import(struct obd_import *import)
-{
-	LASSERT(import != NULL);
-	LASSERT(import != LP_POISON);
-
-	class_handle_unhash(&import->imp_handle);
-
-	spin_lock(&import->imp_lock);
-	import->imp_generation++;
-	spin_unlock(&import->imp_lock);
-	class_import_put(import);
-}
-EXPORT_SYMBOL(class_destroy_import);
-
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-
-void __class_export_add_lock_ref(struct obd_export *exp, struct ldlm_lock *lock)
-{
-	spin_lock(&exp->exp_locks_list_guard);
-
-	LASSERT(lock->l_exp_refs_nr >= 0);
-
-	if (lock->l_exp_refs_target != NULL &&
-	    lock->l_exp_refs_target != exp) {
-		LCONSOLE_WARN("setting export %p for lock %p which already has export %p\n",
-			      exp, lock, lock->l_exp_refs_target);
-	}
-	if ((lock->l_exp_refs_nr ++) == 0) {
-		list_add(&lock->l_exp_refs_link, &exp->exp_locks_list);
-		lock->l_exp_refs_target = exp;
-	}
-	CDEBUG(D_INFO, "lock = %p, export = %p, refs = %u\n",
-	       lock, exp, lock->l_exp_refs_nr);
-	spin_unlock(&exp->exp_locks_list_guard);
-}
-EXPORT_SYMBOL(__class_export_add_lock_ref);
-
-void __class_export_del_lock_ref(struct obd_export *exp, struct ldlm_lock *lock)
-{
-	spin_lock(&exp->exp_locks_list_guard);
-	LASSERT(lock->l_exp_refs_nr > 0);
-	if (lock->l_exp_refs_target != exp) {
-		LCONSOLE_WARN("lock %p, mismatching export pointers: %p, %p\n",
-			      lock, lock->l_exp_refs_target, exp);
-	}
-	if (-- lock->l_exp_refs_nr == 0) {
-		list_del_init(&lock->l_exp_refs_link);
-		lock->l_exp_refs_target = NULL;
-	}
-	CDEBUG(D_INFO, "lock = %p, export = %p, refs = %u\n",
-	       lock, exp, lock->l_exp_refs_nr);
-	spin_unlock(&exp->exp_locks_list_guard);
-}
-EXPORT_SYMBOL(__class_export_del_lock_ref);
-#endif
-
-/* A connection defines an export context in which preallocation can
-   be managed. This releases the export pointer reference, and returns
-   the export handle, so the export refcount is 1 when this function
-   returns. */
-int class_connect(struct lustre_handle *conn, struct obd_device *obd,
-		  struct obd_uuid *cluuid)
-{
-	struct obd_export *export;
-	LASSERT(conn != NULL);
-	LASSERT(obd != NULL);
-	LASSERT(cluuid != NULL);
-
-	export = class_new_export(obd, cluuid);
-	if (IS_ERR(export))
-		return PTR_ERR(export);
-
-	conn->cookie = export->exp_handle.h_cookie;
-	class_export_put(export);
-
-	CDEBUG(D_IOCTL, "connect: client %s, cookie %#llx\n",
-	       cluuid->uuid, conn->cookie);
-	return 0;
-}
-EXPORT_SYMBOL(class_connect);
-
-/* if export is involved in recovery then clean up related things */
-static void class_export_recovery_cleanup(struct obd_export *exp)
-{
-	struct obd_device *obd = exp->exp_obd;
-
-	spin_lock(&obd->obd_recovery_task_lock);
-	if (exp->exp_delayed)
-		obd->obd_delayed_clients--;
-	if (obd->obd_recovering) {
-		if (exp->exp_in_recovery) {
-			spin_lock(&exp->exp_lock);
-			exp->exp_in_recovery = 0;
-			spin_unlock(&exp->exp_lock);
-			LASSERT_ATOMIC_POS(&obd->obd_connected_clients);
-			atomic_dec(&obd->obd_connected_clients);
-		}
-
-		/* if called during recovery then should update
-		 * obd_stale_clients counter,
-		 * lightweight exports are not counted */
-		if (exp->exp_failed &&
-		    (exp_connect_flags(exp) & OBD_CONNECT_LIGHTWEIGHT) == 0)
-			exp->exp_obd->obd_stale_clients++;
-	}
-	spin_unlock(&obd->obd_recovery_task_lock);
-
-	spin_lock(&exp->exp_lock);
-	/** Cleanup req replay fields */
-	if (exp->exp_req_replay_needed) {
-		exp->exp_req_replay_needed = 0;
-
-		LASSERT(atomic_read(&obd->obd_req_replay_clients));
-		atomic_dec(&obd->obd_req_replay_clients);
-	}
-
-	/** Cleanup lock replay data */
-	if (exp->exp_lock_replay_needed) {
-		exp->exp_lock_replay_needed = 0;
-
-		LASSERT(atomic_read(&obd->obd_lock_replay_clients));
-		atomic_dec(&obd->obd_lock_replay_clients);
-	}
-	spin_unlock(&exp->exp_lock);
-}
-
-/* This function removes 1-3 references from the export:
- * 1 - for export pointer passed
- * and if disconnect really need
- * 2 - removing from hash
- * 3 - in client_unlink_export
- * The export pointer passed to this function can destroyed */
-int class_disconnect(struct obd_export *export)
-{
-	int already_disconnected;
-
-	if (export == NULL) {
-		CWARN("attempting to free NULL export %p\n", export);
-		return -EINVAL;
-	}
-
-	spin_lock(&export->exp_lock);
-	already_disconnected = export->exp_disconnected;
-	export->exp_disconnected = 1;
-	spin_unlock(&export->exp_lock);
-
-	/* class_cleanup(), abort_recovery(), and class_fail_export()
-	 * all end up in here, and if any of them race we shouldn't
-	 * call extra class_export_puts(). */
-	if (already_disconnected) {
-		LASSERT(hlist_unhashed(&export->exp_nid_hash));
-		goto no_disconn;
-	}
-
-	CDEBUG(D_IOCTL, "disconnect: cookie %#llx\n",
-	       export->exp_handle.h_cookie);
-
-	if (!hlist_unhashed(&export->exp_nid_hash))
-		cfs_hash_del(export->exp_obd->obd_nid_hash,
-			     &export->exp_connection->c_peer.nid,
-			     &export->exp_nid_hash);
-
-	class_export_recovery_cleanup(export);
-	class_unlink_export(export);
-no_disconn:
-	class_export_put(export);
-	return 0;
-}
-EXPORT_SYMBOL(class_disconnect);
-
-/* Return non-zero for a fully connected export */
-int class_connected_export(struct obd_export *exp)
-{
-	if (exp) {
-		int connected;
-		spin_lock(&exp->exp_lock);
-		connected = exp->exp_conn_cnt > 0;
-		spin_unlock(&exp->exp_lock);
-		return connected;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(class_connected_export);
-
-static void class_disconnect_export_list(struct list_head *list,
-					 enum obd_option flags)
-{
-	int rc;
-	struct obd_export *exp;
-
-	/* It's possible that an export may disconnect itself, but
-	 * nothing else will be added to this list. */
-	while (!list_empty(list)) {
-		exp = list_entry(list->next, struct obd_export,
-				     exp_obd_chain);
-		/* need for safe call CDEBUG after obd_disconnect */
-		class_export_get(exp);
-
-		spin_lock(&exp->exp_lock);
-		exp->exp_flags = flags;
-		spin_unlock(&exp->exp_lock);
-
-		if (obd_uuid_equals(&exp->exp_client_uuid,
-				    &exp->exp_obd->obd_uuid)) {
-			CDEBUG(D_HA,
-			       "exp %p export uuid == obd uuid, don't discon\n",
-			       exp);
-			/* Need to delete this now so we don't end up pointing
-			 * to work_list later when this export is cleaned up. */
-			list_del_init(&exp->exp_obd_chain);
-			class_export_put(exp);
-			continue;
-		}
-
-		class_export_get(exp);
-		CDEBUG(D_HA, "%s: disconnecting export at %s (%p), last request at " CFS_TIME_T "\n",
-		       exp->exp_obd->obd_name, obd_export_nid2str(exp),
-		       exp, exp->exp_last_request_time);
-		/* release one export reference anyway */
-		rc = obd_disconnect(exp);
-
-		CDEBUG(D_HA, "disconnected export at %s (%p): rc %d\n",
-		       obd_export_nid2str(exp), exp, rc);
-		class_export_put(exp);
-	}
-}
-
-void class_disconnect_exports(struct obd_device *obd)
-{
-	struct list_head work_list;
-
-	/* Move all of the exports from obd_exports to a work list, en masse. */
-	INIT_LIST_HEAD(&work_list);
-	spin_lock(&obd->obd_dev_lock);
-	list_splice_init(&obd->obd_exports, &work_list);
-	list_splice_init(&obd->obd_delayed_exports, &work_list);
-	spin_unlock(&obd->obd_dev_lock);
-
-	if (!list_empty(&work_list)) {
-		CDEBUG(D_HA, "OBD device %d (%p) has exports, disconnecting them\n",
-		       obd->obd_minor, obd);
-		class_disconnect_export_list(&work_list,
-					     exp_flags_from_obd(obd));
-	} else
-		CDEBUG(D_HA, "OBD device %d (%p) has no exports\n",
-		       obd->obd_minor, obd);
-}
-EXPORT_SYMBOL(class_disconnect_exports);
-
-/* Remove exports that have not completed recovery.
- */
-void class_disconnect_stale_exports(struct obd_device *obd,
-				    int (*test_export)(struct obd_export *))
-{
-	struct list_head work_list;
-	struct obd_export *exp, *n;
-	int evicted = 0;
-
-	INIT_LIST_HEAD(&work_list);
-	spin_lock(&obd->obd_dev_lock);
-	list_for_each_entry_safe(exp, n, &obd->obd_exports,
-				     exp_obd_chain) {
-		/* don't count self-export as client */
-		if (obd_uuid_equals(&exp->exp_client_uuid,
-				    &exp->exp_obd->obd_uuid))
-			continue;
-
-		/* don't evict clients which have no slot in last_rcvd
-		 * (e.g. lightweight connection) */
-		if (exp->exp_target_data.ted_lr_idx == -1)
-			continue;
-
-		spin_lock(&exp->exp_lock);
-		if (exp->exp_failed || test_export(exp)) {
-			spin_unlock(&exp->exp_lock);
-			continue;
-		}
-		exp->exp_failed = 1;
-		spin_unlock(&exp->exp_lock);
-
-		list_move(&exp->exp_obd_chain, &work_list);
-		evicted++;
-		CDEBUG(D_HA, "%s: disconnect stale client %s@%s\n",
-		       obd->obd_name, exp->exp_client_uuid.uuid,
-		       exp->exp_connection == NULL ? "<unknown>" :
-		       libcfs_nid2str(exp->exp_connection->c_peer.nid));
-		print_export_data(exp, "EVICTING", 0);
-	}
-	spin_unlock(&obd->obd_dev_lock);
-
-	if (evicted)
-		LCONSOLE_WARN("%s: disconnecting %d stale clients\n",
-			      obd->obd_name, evicted);
-
-	class_disconnect_export_list(&work_list, exp_flags_from_obd(obd) |
-						 OBD_OPT_ABORT_RECOV);
-}
-EXPORT_SYMBOL(class_disconnect_stale_exports);
-
-void class_fail_export(struct obd_export *exp)
-{
-	int rc, already_failed;
-
-	spin_lock(&exp->exp_lock);
-	already_failed = exp->exp_failed;
-	exp->exp_failed = 1;
-	spin_unlock(&exp->exp_lock);
-
-	if (already_failed) {
-		CDEBUG(D_HA, "disconnecting dead export %p/%s; skipping\n",
-		       exp, exp->exp_client_uuid.uuid);
-		return;
-	}
-
-	CDEBUG(D_HA, "disconnecting export %p/%s\n",
-	       exp, exp->exp_client_uuid.uuid);
-
-	if (obd_dump_on_timeout)
-		libcfs_debug_dumplog();
-
-	/* need for safe call CDEBUG after obd_disconnect */
-	class_export_get(exp);
-
-	/* Most callers into obd_disconnect are removing their own reference
-	 * (request, for example) in addition to the one from the hash table.
-	 * We don't have such a reference here, so make one. */
-	class_export_get(exp);
-	rc = obd_disconnect(exp);
-	if (rc)
-		CERROR("disconnecting export %p failed: %d\n", exp, rc);
-	else
-		CDEBUG(D_HA, "disconnected export %p/%s\n",
-		       exp, exp->exp_client_uuid.uuid);
-	class_export_put(exp);
-}
-EXPORT_SYMBOL(class_fail_export);
-
-char *obd_export_nid2str(struct obd_export *exp)
-{
-	if (exp->exp_connection != NULL)
-		return libcfs_nid2str(exp->exp_connection->c_peer.nid);
-
-	return "(no nid)";
-}
-EXPORT_SYMBOL(obd_export_nid2str);
-
-int obd_export_evict_by_nid(struct obd_device *obd, const char *nid)
-{
-	struct cfs_hash *nid_hash;
-	struct obd_export *doomed_exp = NULL;
-	int exports_evicted = 0;
-
-	lnet_nid_t nid_key = libcfs_str2nid((char *)nid);
-
-	spin_lock(&obd->obd_dev_lock);
-	/* umount has run already, so evict thread should leave
-	 * its task to umount thread now */
-	if (obd->obd_stopping) {
-		spin_unlock(&obd->obd_dev_lock);
-		return exports_evicted;
-	}
-	nid_hash = obd->obd_nid_hash;
-	cfs_hash_getref(nid_hash);
-	spin_unlock(&obd->obd_dev_lock);
-
-	do {
-		doomed_exp = cfs_hash_lookup(nid_hash, &nid_key);
-		if (doomed_exp == NULL)
-			break;
-
-		LASSERTF(doomed_exp->exp_connection->c_peer.nid == nid_key,
-			 "nid %s found, wanted nid %s, requested nid %s\n",
-			 obd_export_nid2str(doomed_exp),
-			 libcfs_nid2str(nid_key), nid);
-		LASSERTF(doomed_exp != obd->obd_self_export,
-			 "self-export is hashed by NID?\n");
-		exports_evicted++;
-		LCONSOLE_WARN("%s: evicting %s (at %s) by administrative request\n",
-			      obd->obd_name,
-			      obd_uuid2str(&doomed_exp->exp_client_uuid),
-			      obd_export_nid2str(doomed_exp));
-		class_fail_export(doomed_exp);
-		class_export_put(doomed_exp);
-	} while (1);
-
-	cfs_hash_putref(nid_hash);
-
-	if (!exports_evicted)
-		CDEBUG(D_HA,
-		       "%s: can't disconnect NID '%s': no exports found\n",
-		       obd->obd_name, nid);
-	return exports_evicted;
-}
-EXPORT_SYMBOL(obd_export_evict_by_nid);
-
-int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid)
-{
-	struct cfs_hash *uuid_hash;
-	struct obd_export *doomed_exp = NULL;
-	struct obd_uuid doomed_uuid;
-	int exports_evicted = 0;
-
-	spin_lock(&obd->obd_dev_lock);
-	if (obd->obd_stopping) {
-		spin_unlock(&obd->obd_dev_lock);
-		return exports_evicted;
-	}
-	uuid_hash = obd->obd_uuid_hash;
-	cfs_hash_getref(uuid_hash);
-	spin_unlock(&obd->obd_dev_lock);
-
-	obd_str2uuid(&doomed_uuid, uuid);
-	if (obd_uuid_equals(&doomed_uuid, &obd->obd_uuid)) {
-		CERROR("%s: can't evict myself\n", obd->obd_name);
-		cfs_hash_putref(uuid_hash);
-		return exports_evicted;
-	}
-
-	doomed_exp = cfs_hash_lookup(uuid_hash, &doomed_uuid);
-
-	if (doomed_exp == NULL) {
-		CERROR("%s: can't disconnect %s: no exports found\n",
-		       obd->obd_name, uuid);
-	} else {
-		CWARN("%s: evicting %s at administrative request\n",
-		       obd->obd_name, doomed_exp->exp_client_uuid.uuid);
-		class_fail_export(doomed_exp);
-		class_export_put(doomed_exp);
-		exports_evicted++;
-	}
-	cfs_hash_putref(uuid_hash);
-
-	return exports_evicted;
-}
-EXPORT_SYMBOL(obd_export_evict_by_uuid);
-
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-void (*class_export_dump_hook)(struct obd_export*) = NULL;
-EXPORT_SYMBOL(class_export_dump_hook);
-#endif
-
-static void print_export_data(struct obd_export *exp, const char *status,
-			      int locks)
-{
-	struct ptlrpc_reply_state *rs;
-	struct ptlrpc_reply_state *first_reply = NULL;
-	int nreplies = 0;
-
-	spin_lock(&exp->exp_lock);
-	list_for_each_entry(rs, &exp->exp_outstanding_replies,
-				rs_exp_list) {
-		if (nreplies == 0)
-			first_reply = rs;
-		nreplies++;
-	}
-	spin_unlock(&exp->exp_lock);
-
-	CDEBUG(D_HA, "%s: %s %p %s %s %d (%d %d %d) %d %d %d %d: %p %s %llu\n",
-	       exp->exp_obd->obd_name, status, exp, exp->exp_client_uuid.uuid,
-	       obd_export_nid2str(exp), atomic_read(&exp->exp_refcount),
-	       atomic_read(&exp->exp_rpc_count),
-	       atomic_read(&exp->exp_cb_count),
-	       atomic_read(&exp->exp_locks_count),
-	       exp->exp_disconnected, exp->exp_delayed, exp->exp_failed,
-	       nreplies, first_reply, nreplies > 3 ? "..." : "",
-	       exp->exp_last_committed);
-#if LUSTRE_TRACKS_LOCK_EXP_REFS
-	if (locks && class_export_dump_hook != NULL)
-		class_export_dump_hook(exp);
-#endif
-}
-
-void dump_exports(struct obd_device *obd, int locks)
-{
-	struct obd_export *exp;
-
-	spin_lock(&obd->obd_dev_lock);
-	list_for_each_entry(exp, &obd->obd_exports, exp_obd_chain)
-		print_export_data(exp, "ACTIVE", locks);
-	list_for_each_entry(exp, &obd->obd_unlinked_exports, exp_obd_chain)
-		print_export_data(exp, "UNLINKED", locks);
-	list_for_each_entry(exp, &obd->obd_delayed_exports, exp_obd_chain)
-		print_export_data(exp, "DELAYED", locks);
-	spin_unlock(&obd->obd_dev_lock);
-	spin_lock(&obd_zombie_impexp_lock);
-	list_for_each_entry(exp, &obd_zombie_exports, exp_obd_chain)
-		print_export_data(exp, "ZOMBIE", locks);
-	spin_unlock(&obd_zombie_impexp_lock);
-}
-EXPORT_SYMBOL(dump_exports);
-
-void obd_exports_barrier(struct obd_device *obd)
-{
-	int waited = 2;
-	LASSERT(list_empty(&obd->obd_exports));
-	spin_lock(&obd->obd_dev_lock);
-	while (!list_empty(&obd->obd_unlinked_exports)) {
-		spin_unlock(&obd->obd_dev_lock);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(waited));
-		if (waited > 5 && IS_PO2(waited)) {
-			LCONSOLE_WARN("%s is waiting for obd_unlinked_exports more than %d seconds. The obd refcount = %d. Is it stuck?\n",
-				      obd->obd_name, waited,
-				      atomic_read(&obd->obd_refcount));
-			dump_exports(obd, 1);
-		}
-		waited *= 2;
-		spin_lock(&obd->obd_dev_lock);
-	}
-	spin_unlock(&obd->obd_dev_lock);
-}
-EXPORT_SYMBOL(obd_exports_barrier);
-
-/* Total amount of zombies to be destroyed */
-static int zombies_count;
-
-/**
- * kill zombie imports and exports
- */
-void obd_zombie_impexp_cull(void)
-{
-	struct obd_import *import;
-	struct obd_export *export;
-
-	do {
-		spin_lock(&obd_zombie_impexp_lock);
-
-		import = NULL;
-		if (!list_empty(&obd_zombie_imports)) {
-			import = list_entry(obd_zombie_imports.next,
-						struct obd_import,
-						imp_zombie_chain);
-			list_del_init(&import->imp_zombie_chain);
-		}
-
-		export = NULL;
-		if (!list_empty(&obd_zombie_exports)) {
-			export = list_entry(obd_zombie_exports.next,
-						struct obd_export,
-						exp_obd_chain);
-			list_del_init(&export->exp_obd_chain);
-		}
-
-		spin_unlock(&obd_zombie_impexp_lock);
-
-		if (import != NULL) {
-			class_import_destroy(import);
-			spin_lock(&obd_zombie_impexp_lock);
-			zombies_count--;
-			spin_unlock(&obd_zombie_impexp_lock);
-		}
-
-		if (export != NULL) {
-			class_export_destroy(export);
-			spin_lock(&obd_zombie_impexp_lock);
-			zombies_count--;
-			spin_unlock(&obd_zombie_impexp_lock);
-		}
-
-		cond_resched();
-	} while (import != NULL || export != NULL);
-}
-
-static struct completion	obd_zombie_start;
-static struct completion	obd_zombie_stop;
-static unsigned long		obd_zombie_flags;
-static wait_queue_head_t		obd_zombie_waitq;
-static pid_t			obd_zombie_pid;
-
-enum {
-	OBD_ZOMBIE_STOP		= 0x0001,
-};
-
-/**
- * check for work for kill zombie import/export thread.
- */
-static int obd_zombie_impexp_check(void *arg)
-{
-	int rc;
-
-	spin_lock(&obd_zombie_impexp_lock);
-	rc = (zombies_count == 0) &&
-	     !test_bit(OBD_ZOMBIE_STOP, &obd_zombie_flags);
-	spin_unlock(&obd_zombie_impexp_lock);
-
-	return rc;
-}
-
-/**
- * Add export to the obd_zombie thread and notify it.
- */
-static void obd_zombie_export_add(struct obd_export *exp)
-{
-	spin_lock(&exp->exp_obd->obd_dev_lock);
-	LASSERT(!list_empty(&exp->exp_obd_chain));
-	list_del_init(&exp->exp_obd_chain);
-	spin_unlock(&exp->exp_obd->obd_dev_lock);
-	spin_lock(&obd_zombie_impexp_lock);
-	zombies_count++;
-	list_add(&exp->exp_obd_chain, &obd_zombie_exports);
-	spin_unlock(&obd_zombie_impexp_lock);
-
-	obd_zombie_impexp_notify();
-}
-
-/**
- * Add import to the obd_zombie thread and notify it.
- */
-static void obd_zombie_import_add(struct obd_import *imp)
-{
-	LASSERT(imp->imp_sec == NULL);
-	LASSERT(imp->imp_rq_pool == NULL);
-	spin_lock(&obd_zombie_impexp_lock);
-	LASSERT(list_empty(&imp->imp_zombie_chain));
-	zombies_count++;
-	list_add(&imp->imp_zombie_chain, &obd_zombie_imports);
-	spin_unlock(&obd_zombie_impexp_lock);
-
-	obd_zombie_impexp_notify();
-}
-
-/**
- * notify import/export destroy thread about new zombie.
- */
-static void obd_zombie_impexp_notify(void)
-{
-	/*
-	 * Make sure obd_zombie_impexp_thread get this notification.
-	 * It is possible this signal only get by obd_zombie_barrier, and
-	 * barrier gulps this notification and sleeps away and hangs ensues
-	 */
-	wake_up_all(&obd_zombie_waitq);
-}
-
-/**
- * check whether obd_zombie is idle
- */
-static int obd_zombie_is_idle(void)
-{
-	int rc;
-
-	LASSERT(!test_bit(OBD_ZOMBIE_STOP, &obd_zombie_flags));
-	spin_lock(&obd_zombie_impexp_lock);
-	rc = (zombies_count == 0);
-	spin_unlock(&obd_zombie_impexp_lock);
-	return rc;
-}
-
-/**
- * wait when obd_zombie import/export queues become empty
- */
-void obd_zombie_barrier(void)
-{
-	struct l_wait_info lwi = { 0 };
-
-	if (obd_zombie_pid == current_pid())
-		/* don't wait for myself */
-		return;
-	l_wait_event(obd_zombie_waitq, obd_zombie_is_idle(), &lwi);
-}
-EXPORT_SYMBOL(obd_zombie_barrier);
-
-
-/**
- * destroy zombie export/import thread.
- */
-static int obd_zombie_impexp_thread(void *unused)
-{
-	unshare_fs_struct();
-	complete(&obd_zombie_start);
-
-	obd_zombie_pid = current_pid();
-
-	while (!test_bit(OBD_ZOMBIE_STOP, &obd_zombie_flags)) {
-		struct l_wait_info lwi = { 0 };
-
-		l_wait_event(obd_zombie_waitq,
-			     !obd_zombie_impexp_check(NULL), &lwi);
-		obd_zombie_impexp_cull();
-
-		/*
-		 * Notify obd_zombie_barrier callers that queues
-		 * may be empty.
-		 */
-		wake_up(&obd_zombie_waitq);
-	}
-
-	complete(&obd_zombie_stop);
-
-	return 0;
-}
-
-
-/**
- * start destroy zombie import/export thread
- */
-int obd_zombie_impexp_init(void)
-{
-	struct task_struct *task;
-
-	INIT_LIST_HEAD(&obd_zombie_imports);
-	INIT_LIST_HEAD(&obd_zombie_exports);
-	spin_lock_init(&obd_zombie_impexp_lock);
-	init_completion(&obd_zombie_start);
-	init_completion(&obd_zombie_stop);
-	init_waitqueue_head(&obd_zombie_waitq);
-	obd_zombie_pid = 0;
-
-	task = kthread_run(obd_zombie_impexp_thread, NULL, "obd_zombid");
-	if (IS_ERR(task))
-		return PTR_ERR(task);
-
-	wait_for_completion(&obd_zombie_start);
-	return 0;
-}
-/**
- * stop destroy zombie import/export thread
- */
-void obd_zombie_impexp_stop(void)
-{
-	set_bit(OBD_ZOMBIE_STOP, &obd_zombie_flags);
-	obd_zombie_impexp_notify();
-	wait_for_completion(&obd_zombie_stop);
-}
-
-/***** Kernel-userspace comm helpers *******/
-
-/* Get length of entire message, including header */
-int kuc_len(int payload_len)
-{
-	return sizeof(struct kuc_hdr) + payload_len;
-}
-EXPORT_SYMBOL(kuc_len);
-
-/* Get a pointer to kuc header, given a ptr to the payload
- * @param p Pointer to payload area
- * @returns Pointer to kuc header
- */
-struct kuc_hdr *kuc_ptr(void *p)
-{
-	struct kuc_hdr *lh = ((struct kuc_hdr *)p) - 1;
-	LASSERT(lh->kuc_magic == KUC_MAGIC);
-	return lh;
-}
-EXPORT_SYMBOL(kuc_ptr);
-
-/* Test if payload is part of kuc message
- * @param p Pointer to payload area
- * @returns boolean
- */
-int kuc_ispayload(void *p)
-{
-	struct kuc_hdr *kh = ((struct kuc_hdr *)p) - 1;
-
-	if (kh->kuc_magic == KUC_MAGIC)
-		return 1;
-	else
-		return 0;
-}
-EXPORT_SYMBOL(kuc_ispayload);
-
-/* Alloc space for a message, and fill in header
- * @return Pointer to payload area
- */
-void *kuc_alloc(int payload_len, int transport, int type)
-{
-	struct kuc_hdr *lh;
-	int len = kuc_len(payload_len);
-
-	lh = kzalloc(len, GFP_NOFS);
-	if (!lh)
-		return ERR_PTR(-ENOMEM);
-
-	lh->kuc_magic = KUC_MAGIC;
-	lh->kuc_transport = transport;
-	lh->kuc_msgtype = type;
-	lh->kuc_msglen = len;
-
-	return (void *)(lh + 1);
-}
-EXPORT_SYMBOL(kuc_alloc);
-
-/* Takes pointer to payload area */
-inline void kuc_free(void *p, int payload_len)
-{
-	struct kuc_hdr *lh = kuc_ptr(p);
-	kfree(lh);
-}
-EXPORT_SYMBOL(kuc_free);
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
deleted file mode 100644
index 6218ef34ee80..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/linux/linux-module.c
- *
- * Object Devices Class Driver
- * These are the only exported functions, they provide some generic
- * infrastructure for managing object devices
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/sched.h>
-#include <linux/lp.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/fs.h>
-#include <linux/poll.h>
-#include <linux/list.h>
-#include <linux/highmem.h>
-#include <linux/io.h>
-#include <asm/ioctls.h>
-#include <linux/poll.h>
-#include <linux/uaccess.h>
-#include <linux/miscdevice.h>
-#include <linux/seq_file.h>
-#include <linux/kobject.h>
-
-#include "../../../include/linux/libcfs/libcfs.h"
-#include "../../../include/linux/lnet/lnetctl.h"
-#include "../../include/obd_support.h"
-#include "../../include/obd_class.h"
-#include "../../include/lprocfs_status.h"
-#include "../../include/lustre_ver.h"
-#include "../../include/lustre/lustre_build_version.h"
-
-int proc_version;
-
-/* buffer MUST be at least the size of obd_ioctl_hdr */
-int obd_ioctl_getdata(char **buf, int *len, void *arg)
-{
-	struct obd_ioctl_hdr hdr;
-	struct obd_ioctl_data *data;
-	int err;
-	int offset = 0;
-
-	if (copy_from_user(&hdr, (void *)arg, sizeof(hdr)))
-		return -EFAULT;
-
-	if (hdr.ioc_version != OBD_IOCTL_VERSION) {
-		CERROR("Version mismatch kernel (%x) vs application (%x)\n",
-		       OBD_IOCTL_VERSION, hdr.ioc_version);
-		return -EINVAL;
-	}
-
-	if (hdr.ioc_len > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("User buffer len %d exceeds %d max buffer\n",
-		       hdr.ioc_len, OBD_MAX_IOCTL_BUFFER);
-		return -EINVAL;
-	}
-
-	if (hdr.ioc_len < sizeof(struct obd_ioctl_data)) {
-		CERROR("User buffer too small for ioctl (%d)\n", hdr.ioc_len);
-		return -EINVAL;
-	}
-
-	/* When there are lots of processes calling vmalloc on multi-core
-	 * system, the high lock contention will hurt performance badly,
-	 * obdfilter-survey is an example, which relies on ioctl. So we'd
-	 * better avoid vmalloc on ioctl path. LU-66 */
-	*buf = libcfs_kvzalloc(hdr.ioc_len, GFP_NOFS);
-	if (*buf == NULL) {
-		CERROR("Cannot allocate control buffer of len %d\n",
-		       hdr.ioc_len);
-		return -EINVAL;
-	}
-	*len = hdr.ioc_len;
-	data = (struct obd_ioctl_data *)*buf;
-
-	if (copy_from_user(*buf, (void *)arg, hdr.ioc_len)) {
-		err = -EFAULT;
-		goto free_buf;
-	}
-	if (hdr.ioc_len != data->ioc_len) {
-		err = -EINVAL;
-		goto free_buf;
-	}
-
-	if (obd_ioctl_is_invalid(data)) {
-		CERROR("ioctl not correctly formatted\n");
-		err = -EINVAL;
-		goto free_buf;
-	}
-
-	if (data->ioc_inllen1) {
-		data->ioc_inlbuf1 = &data->ioc_bulk[0];
-		offset += cfs_size_round(data->ioc_inllen1);
-	}
-
-	if (data->ioc_inllen2) {
-		data->ioc_inlbuf2 = &data->ioc_bulk[0] + offset;
-		offset += cfs_size_round(data->ioc_inllen2);
-	}
-
-	if (data->ioc_inllen3) {
-		data->ioc_inlbuf3 = &data->ioc_bulk[0] + offset;
-		offset += cfs_size_round(data->ioc_inllen3);
-	}
-
-	if (data->ioc_inllen4) {
-		data->ioc_inlbuf4 = &data->ioc_bulk[0] + offset;
-	}
-
-	return 0;
-
-free_buf:
-	kvfree(*buf);
-	return err;
-}
-EXPORT_SYMBOL(obd_ioctl_getdata);
-
-int obd_ioctl_popdata(void *arg, void *data, int len)
-{
-	int err;
-
-	err = copy_to_user(arg, data, len);
-	if (err)
-		err = -EFAULT;
-	return err;
-}
-EXPORT_SYMBOL(obd_ioctl_popdata);
-
-/*  opening /dev/obd */
-static int obd_class_open(struct inode *inode, struct file *file)
-{
-	try_module_get(THIS_MODULE);
-	return 0;
-}
-
-/*  closing /dev/obd */
-static int obd_class_release(struct inode *inode, struct file *file)
-{
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-/* to control /dev/obd */
-static long obd_class_ioctl(struct file *filp, unsigned int cmd,
-			    unsigned long arg)
-{
-	int err = 0;
-
-	/* Allow non-root access for OBD_IOC_PING_TARGET - used by lfs check */
-	if (!capable(CFS_CAP_SYS_ADMIN) && (cmd != OBD_IOC_PING_TARGET))
-		return err = -EACCES;
-	if ((cmd & 0xffffff00) == ((int)'T') << 8) /* ignore all tty ioctls */
-		return err = -ENOTTY;
-
-	err = class_handle_ioctl(cmd, (unsigned long)arg);
-
-	return err;
-}
-
-/* declare character device */
-static struct file_operations obd_psdev_fops = {
-	.owner	  = THIS_MODULE,
-	.unlocked_ioctl = obd_class_ioctl, /* unlocked_ioctl */
-	.open	   = obd_class_open,      /* open */
-	.release	= obd_class_release,   /* release */
-};
-
-/* modules setup */
-struct miscdevice obd_psdev = {
-	.minor = OBD_DEV_MINOR,
-	.name  = OBD_DEV_NAME,
-	.fops  = &obd_psdev_fops,
-};
-
-
-static ssize_t version_show(struct kobject *kobj, struct attribute *attr,
-			    char *buf)
-{
-	return sprintf(buf, "%s\n", LUSTRE_VERSION_STRING);
-}
-
-static ssize_t pinger_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	return sprintf(buf, "%s\n", "on");
-}
-
-static ssize_t health_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	bool healthy = true;
-	int i;
-	size_t len = 0;
-
-	if (libcfs_catastrophe)
-		return sprintf(buf, "LBUG\n");
-
-	read_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd;
-
-		obd = class_num2obd(i);
-		if (obd == NULL || !obd->obd_attached || !obd->obd_set_up)
-			continue;
-
-		LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-		if (obd->obd_stopping)
-			continue;
-
-		class_incref(obd, __func__, current);
-		read_unlock(&obd_dev_lock);
-
-		if (obd_health_check(NULL, obd)) {
-			healthy = false;
-		}
-		class_decref(obd, __func__, current);
-		read_lock(&obd_dev_lock);
-	}
-	read_unlock(&obd_dev_lock);
-
-	if (healthy)
-		len = sprintf(buf, "healthy\n");
-	else
-		len = sprintf(buf, "NOT HEALTHY\n");
-
-	return len;
-}
-
-static ssize_t jobid_var_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_var);
-}
-
-static ssize_t jobid_var_store(struct kobject *kobj, struct attribute *attr,
-			       const char *buffer,
-			       size_t count)
-{
-	if (!count || count > JOBSTATS_JOBID_VAR_MAX_LEN)
-		return -EINVAL;
-
-	memset(obd_jobid_var, 0, JOBSTATS_JOBID_VAR_MAX_LEN + 1);
-
-	memcpy(obd_jobid_var, buffer, count);
-
-	/* Trim the trailing '\n' if any */
-	if (obd_jobid_var[count - 1] == '\n')
-		obd_jobid_var[count - 1] = 0;
-
-	return count;
-}
-
-static ssize_t jobid_name_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_node);
-}
-
-static ssize_t jobid_name_store(struct kobject *kobj, struct attribute *attr,
-				const char *buffer,
-				size_t count)
-{
-	if (!count || count > JOBSTATS_JOBID_SIZE)
-		return -EINVAL;
-
-	memcpy(obd_jobid_node, buffer, count);
-
-	obd_jobid_node[count] = 0;
-
-	/* Trim the trailing '\n' if any */
-	if (obd_jobid_node[count - 1] == '\n')
-		obd_jobid_node[count - 1] = 0;
-
-	return count;
-}
-
-/* Root for /sys/kernel/debug/lustre */
-struct dentry *debugfs_lustre_root;
-EXPORT_SYMBOL_GPL(debugfs_lustre_root);
-
-LUSTRE_RO_ATTR(version);
-LUSTRE_RO_ATTR(pinger);
-LUSTRE_RO_ATTR(health);
-LUSTRE_RW_ATTR(jobid_var);
-LUSTRE_RW_ATTR(jobid_name);
-
-static struct attribute *lustre_attrs[] = {
-	&lustre_attr_version.attr,
-	&lustre_attr_pinger.attr,
-	&lustre_attr_health.attr,
-	&lustre_attr_jobid_name.attr,
-	&lustre_attr_jobid_var.attr,
-	NULL,
-};
-
-static void *obd_device_list_seq_start(struct seq_file *p, loff_t *pos)
-{
-	if (*pos >= class_devno_max())
-		return NULL;
-
-	return pos;
-}
-
-static void obd_device_list_seq_stop(struct seq_file *p, void *v)
-{
-}
-
-static void *obd_device_list_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
-	++*pos;
-	if (*pos >= class_devno_max())
-		return NULL;
-
-	return pos;
-}
-
-static int obd_device_list_seq_show(struct seq_file *p, void *v)
-{
-	loff_t index = *(loff_t *)v;
-	struct obd_device *obd = class_num2obd((int)index);
-	char *status;
-
-	if (obd == NULL)
-		return 0;
-
-	LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-	if (obd->obd_stopping)
-		status = "ST";
-	else if (obd->obd_inactive)
-		status = "IN";
-	else if (obd->obd_set_up)
-		status = "UP";
-	else if (obd->obd_attached)
-		status = "AT";
-	else
-		status = "--";
-
-	seq_printf(p, "%3d %s %s %s %s %d\n",
-		   (int)index, status, obd->obd_type->typ_name,
-		   obd->obd_name, obd->obd_uuid.uuid,
-		   atomic_read(&obd->obd_refcount));
-	return 0;
-}
-
-static const struct seq_operations obd_device_list_sops = {
-	.start = obd_device_list_seq_start,
-	.stop = obd_device_list_seq_stop,
-	.next = obd_device_list_seq_next,
-	.show = obd_device_list_seq_show,
-};
-
-static int obd_device_list_open(struct inode *inode, struct file *file)
-{
-	struct seq_file *seq;
-	int rc = seq_open(file, &obd_device_list_sops);
-
-	if (rc)
-		return rc;
-
-	seq = file->private_data;
-	seq->private = inode->i_private;
-
-	return 0;
-}
-
-static const struct file_operations obd_device_list_fops = {
-	.owner   = THIS_MODULE,
-	.open    = obd_device_list_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
-
-struct kobject *lustre_kobj;
-EXPORT_SYMBOL_GPL(lustre_kobj);
-
-static struct attribute_group lustre_attr_group = {
-	.attrs = lustre_attrs,
-};
-
-int class_procfs_init(void)
-{
-	int rc = -ENOMEM;
-	struct dentry *file;
-
-	lustre_kobj = kobject_create_and_add("lustre", fs_kobj);
-	if (lustre_kobj == NULL)
-		goto out;
-
-	/* Create the files associated with this kobject */
-	rc = sysfs_create_group(lustre_kobj, &lustre_attr_group);
-	if (rc) {
-		kobject_put(lustre_kobj);
-		goto out;
-	}
-
-	debugfs_lustre_root = debugfs_create_dir("lustre", NULL);
-	if (IS_ERR_OR_NULL(debugfs_lustre_root)) {
-		rc = debugfs_lustre_root ? PTR_ERR(debugfs_lustre_root)
-					 : -ENOMEM;
-		debugfs_lustre_root = NULL;
-		kobject_put(lustre_kobj);
-		goto out;
-	}
-
-	file = debugfs_create_file("devices", 0444, debugfs_lustre_root, NULL,
-				   &obd_device_list_fops);
-	if (IS_ERR_OR_NULL(file)) {
-		rc = file ? PTR_ERR(file) : -ENOMEM;
-		kobject_put(lustre_kobj);
-		goto out;
-	}
-out:
-	return rc;
-}
-
-int class_procfs_clean(void)
-{
-	if (debugfs_lustre_root != NULL)
-		debugfs_remove_recursive(debugfs_lustre_root);
-
-	debugfs_lustre_root = NULL;
-
-	kobject_put(lustre_kobj);
-
-	return 0;
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-obdo.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-obdo.c
deleted file mode 100644
index 62ed706b136d..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-obdo.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/linux/linux-obdo.c
- *
- * Object Devices Class Driver
- * These are the only exported functions, they provide some generic
- * infrastructure for managing object devices
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/module.h>
-#include "../../include/obd_class.h"
-#include "../../include/lustre/lustre_idl.h"
-
-#include <linux/fs.h>
-#include <linux/pagemap.h> /* for PAGE_CACHE_SIZE */
-
-/*FIXME: Just copy from obdo_from_inode*/
-void obdo_from_la(struct obdo *dst, struct lu_attr *la, __u64 valid)
-{
-	u32 newvalid = 0;
-
-	if (valid & LA_ATIME) {
-		dst->o_atime = la->la_atime;
-		newvalid |= OBD_MD_FLATIME;
-	}
-	if (valid & LA_MTIME) {
-		dst->o_mtime = la->la_mtime;
-		newvalid |= OBD_MD_FLMTIME;
-	}
-	if (valid & LA_CTIME) {
-		dst->o_ctime = la->la_ctime;
-		newvalid |= OBD_MD_FLCTIME;
-	}
-	if (valid & LA_SIZE) {
-		dst->o_size = la->la_size;
-		newvalid |= OBD_MD_FLSIZE;
-	}
-	if (valid & LA_BLOCKS) {  /* allocation of space (x512 bytes) */
-		dst->o_blocks = la->la_blocks;
-		newvalid |= OBD_MD_FLBLOCKS;
-	}
-	if (valid & LA_TYPE) {
-		dst->o_mode = (dst->o_mode & S_IALLUGO) |
-			      (la->la_mode & S_IFMT);
-		newvalid |= OBD_MD_FLTYPE;
-	}
-	if (valid & LA_MODE) {
-		dst->o_mode = (dst->o_mode & S_IFMT) |
-			      (la->la_mode & S_IALLUGO);
-		newvalid |= OBD_MD_FLMODE;
-	}
-	if (valid & LA_UID) {
-		dst->o_uid = la->la_uid;
-		newvalid |= OBD_MD_FLUID;
-	}
-	if (valid & LA_GID) {
-		dst->o_gid = la->la_gid;
-		newvalid |= OBD_MD_FLGID;
-	}
-	dst->o_valid |= newvalid;
-}
-EXPORT_SYMBOL(obdo_from_la);
-
-/*FIXME: Just copy from obdo_from_inode*/
-void la_from_obdo(struct lu_attr *dst, struct obdo *obdo, u32 valid)
-{
-	__u64 newvalid = 0;
-
-	valid &= obdo->o_valid;
-
-	if (valid & OBD_MD_FLATIME) {
-		dst->la_atime = obdo->o_atime;
-		newvalid |= LA_ATIME;
-	}
-	if (valid & OBD_MD_FLMTIME) {
-		dst->la_mtime = obdo->o_mtime;
-		newvalid |= LA_MTIME;
-	}
-	if (valid & OBD_MD_FLCTIME) {
-		dst->la_ctime = obdo->o_ctime;
-		newvalid |= LA_CTIME;
-	}
-	if (valid & OBD_MD_FLSIZE) {
-		dst->la_size = obdo->o_size;
-		newvalid |= LA_SIZE;
-	}
-	if (valid & OBD_MD_FLBLOCKS) {
-		dst->la_blocks = obdo->o_blocks;
-		newvalid |= LA_BLOCKS;
-	}
-	if (valid & OBD_MD_FLTYPE) {
-		dst->la_mode = (dst->la_mode & S_IALLUGO) |
-			       (obdo->o_mode & S_IFMT);
-		newvalid |= LA_TYPE;
-	}
-	if (valid & OBD_MD_FLMODE) {
-		dst->la_mode = (dst->la_mode & S_IFMT) |
-			       (obdo->o_mode & S_IALLUGO);
-		newvalid |= LA_MODE;
-	}
-	if (valid & OBD_MD_FLUID) {
-		dst->la_uid = obdo->o_uid;
-		newvalid |= LA_UID;
-	}
-	if (valid & OBD_MD_FLGID) {
-		dst->la_gid = obdo->o_gid;
-		newvalid |= LA_GID;
-	}
-	dst->la_valid = newvalid;
-}
-EXPORT_SYMBOL(la_from_obdo);
-
-void obdo_refresh_inode(struct inode *dst, struct obdo *src, u32 valid)
-{
-	valid &= src->o_valid;
-
-	if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
-		CDEBUG(D_INODE,
-		       "valid %#llx, cur time %lu/%lu, new %llu/%llu\n",
-		       src->o_valid, LTIME_S(dst->i_mtime),
-		       LTIME_S(dst->i_ctime), src->o_mtime, src->o_ctime);
-
-	if (valid & OBD_MD_FLATIME && src->o_atime > LTIME_S(dst->i_atime))
-		LTIME_S(dst->i_atime) = src->o_atime;
-	if (valid & OBD_MD_FLMTIME && src->o_mtime > LTIME_S(dst->i_mtime))
-		LTIME_S(dst->i_mtime) = src->o_mtime;
-	if (valid & OBD_MD_FLCTIME && src->o_ctime > LTIME_S(dst->i_ctime))
-		LTIME_S(dst->i_ctime) = src->o_ctime;
-	if (valid & OBD_MD_FLSIZE)
-		i_size_write(dst, src->o_size);
-	/* optimum IO size */
-	if (valid & OBD_MD_FLBLKSZ && src->o_blksize > (1 << dst->i_blkbits))
-		dst->i_blkbits = ffs(src->o_blksize) - 1;
-
-	if (dst->i_blkbits < PAGE_CACHE_SHIFT)
-		dst->i_blkbits = PAGE_CACHE_SHIFT;
-
-	/* allocation of space */
-	if (valid & OBD_MD_FLBLOCKS && src->o_blocks > dst->i_blocks)
-		/*
-		 * XXX shouldn't overflow be checked here like in
-		 * obdo_to_inode().
-		 */
-		dst->i_blocks = src->o_blocks;
-}
-EXPORT_SYMBOL(obdo_refresh_inode);
-
-void obdo_to_inode(struct inode *dst, struct obdo *src, u32 valid)
-{
-	valid &= src->o_valid;
-
-	LASSERTF(!(valid & (OBD_MD_FLTYPE | OBD_MD_FLGENER | OBD_MD_FLFID |
-			    OBD_MD_FLID | OBD_MD_FLGROUP)),
-		 "object "DOSTID", valid %x\n", POSTID(&src->o_oi), valid);
-
-	if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
-		CDEBUG(D_INODE,
-		       "valid %#llx, cur time %lu/%lu, new %llu/%llu\n",
-		       src->o_valid, LTIME_S(dst->i_mtime),
-		       LTIME_S(dst->i_ctime), src->o_mtime, src->o_ctime);
-
-	if (valid & OBD_MD_FLATIME)
-		LTIME_S(dst->i_atime) = src->o_atime;
-	if (valid & OBD_MD_FLMTIME)
-		LTIME_S(dst->i_mtime) = src->o_mtime;
-	if (valid & OBD_MD_FLCTIME && src->o_ctime > LTIME_S(dst->i_ctime))
-		LTIME_S(dst->i_ctime) = src->o_ctime;
-	if (valid & OBD_MD_FLSIZE)
-		i_size_write(dst, src->o_size);
-	if (valid & OBD_MD_FLBLOCKS) { /* allocation of space */
-		dst->i_blocks = src->o_blocks;
-		if (dst->i_blocks < src->o_blocks) /* overflow */
-			dst->i_blocks = -1;
-
-	}
-	if (valid & OBD_MD_FLBLKSZ)
-		dst->i_blkbits = ffs(src->o_blksize)-1;
-	if (valid & OBD_MD_FLMODE)
-		dst->i_mode = (dst->i_mode & S_IFMT) | (src->o_mode & ~S_IFMT);
-	if (valid & OBD_MD_FLUID)
-		dst->i_uid = make_kuid(&init_user_ns, src->o_uid);
-	if (valid & OBD_MD_FLGID)
-		dst->i_gid = make_kgid(&init_user_ns, src->o_gid);
-	if (valid & OBD_MD_FLFLAGS)
-		dst->i_flags = src->o_flags;
-}
-EXPORT_SYMBOL(obdo_to_inode);
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
deleted file mode 100644
index 1515163a81a5..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/module.h>
-#include <linux/sysctl.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/ctype.h>
-#include <linux/bitops.h>
-#include <linux/uaccess.h>
-#include <linux/utsname.h>
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../../include/obd_support.h"
-#include "../../include/lprocfs_status.h"
-
-struct static_lustre_uintvalue_attr {
-	struct {
-		struct attribute attr;
-		ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
-				char *buf);
-		ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
-				 const char *buf, size_t len);
-	} u;
-	int *value;
-};
-
-static ssize_t static_uintvalue_show(struct kobject *kobj,
-				    struct attribute *attr,
-				    char *buf)
-{
-	struct static_lustre_uintvalue_attr *lattr = (void *)attr;
-
-	return sprintf(buf, "%d\n", *lattr->value);
-}
-
-static ssize_t static_uintvalue_store(struct kobject *kobj,
-				     struct attribute *attr,
-				     const char *buffer, size_t count)
-{
-	struct static_lustre_uintvalue_attr *lattr  = (void *)attr;
-	int rc;
-	unsigned int val;
-
-	rc = kstrtouint(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	*lattr->value = val;
-
-	return count;
-}
-
-#define LUSTRE_STATIC_UINT_ATTR(name, value) \
-static struct static_lustre_uintvalue_attr lustre_sattr_##name =	\
-					{__ATTR(name, 0644,		\
-						static_uintvalue_show,	\
-						static_uintvalue_store),\
-					  value }
-
-LUSTRE_STATIC_UINT_ATTR(timeout, &obd_timeout);
-
-static ssize_t max_dirty_mb_show(struct kobject *kobj, struct attribute *attr,
-				 char *buf)
-{
-	return sprintf(buf, "%ul\n",
-			obd_max_dirty_pages / (1 << (20 - PAGE_CACHE_SHIFT)));
-}
-
-static ssize_t max_dirty_mb_store(struct kobject *kobj, struct attribute *attr,
-				  const char *buffer, size_t count)
-{
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	val *= 1 << (20 - PAGE_CACHE_SHIFT); /* convert to pages */
-
-	if (val > ((totalram_pages / 10) * 9)) {
-		/* Somebody wants to assign too much memory to dirty pages */
-		return -EINVAL;
-	}
-
-	if (val < 4 << (20 - PAGE_CACHE_SHIFT)) {
-		/* Less than 4 Mb for dirty cache is also bad */
-		return -EINVAL;
-	}
-
-	obd_max_dirty_pages = val;
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_dirty_mb);
-
-LUSTRE_STATIC_UINT_ATTR(debug_peer_on_timeout, &obd_debug_peer_on_timeout);
-LUSTRE_STATIC_UINT_ATTR(dump_on_timeout, &obd_dump_on_timeout);
-LUSTRE_STATIC_UINT_ATTR(dump_on_eviction, &obd_dump_on_eviction);
-LUSTRE_STATIC_UINT_ATTR(at_min, &at_min);
-LUSTRE_STATIC_UINT_ATTR(at_max, &at_max);
-LUSTRE_STATIC_UINT_ATTR(at_extra, &at_extra);
-LUSTRE_STATIC_UINT_ATTR(at_early_margin, &at_early_margin);
-LUSTRE_STATIC_UINT_ATTR(at_history, &at_history);
-
-static struct attribute *lustre_attrs[] = {
-	&lustre_sattr_timeout.u.attr,
-	&lustre_attr_max_dirty_mb.attr,
-	&lustre_sattr_debug_peer_on_timeout.u.attr,
-	&lustre_sattr_dump_on_timeout.u.attr,
-	&lustre_sattr_dump_on_eviction.u.attr,
-	&lustre_sattr_at_min.u.attr,
-	&lustre_sattr_at_max.u.attr,
-	&lustre_sattr_at_extra.u.attr,
-	&lustre_sattr_at_early_margin.u.attr,
-	&lustre_sattr_at_history.u.attr,
-	NULL,
-};
-
-static struct attribute_group lustre_attr_group = {
-	.attrs = lustre_attrs,
-};
-
-int obd_sysctl_init(void)
-{
-	return sysfs_create_group(lustre_kobj, &lustre_attr_group);
-}
-
-void obd_sysctl_clean(void)
-{
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/llog.c b/drivers/staging/lustre/lustre/obdclass/llog.c
deleted file mode 100644
index facc8351fcea..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/llog.c
+++ /dev/null
@@ -1,1006 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/llog.c
- *
- * OST<->MDS recovery logging infrastructure.
- * Invariants in implementation:
- * - we do not share logs among different OST<->MDS connections, so that
- *   if an OST or MDS fails it need only look at log(s) relevant to itself
- *
- * Author: Andreas Dilger <adilger@clusterfs.com>
- * Author: Alex Zhuravlev <bzzz@whamcloud.com>
- * Author: Mikhail Pershin <tappro@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOG
-
-
-#include "../include/obd_class.h"
-#include "../include/lustre_log.h"
-#include "llog_internal.h"
-
-/*
- * Allocate a new log or catalog handle
- * Used inside llog_open().
- */
-static struct llog_handle *llog_alloc_handle(void)
-{
-	struct llog_handle *loghandle;
-
-	loghandle = kzalloc(sizeof(*loghandle), GFP_NOFS);
-	if (!loghandle)
-		return NULL;
-
-	init_rwsem(&loghandle->lgh_lock);
-	spin_lock_init(&loghandle->lgh_hdr_lock);
-	INIT_LIST_HEAD(&loghandle->u.phd.phd_entry);
-	atomic_set(&loghandle->lgh_refcount, 1);
-
-	return loghandle;
-}
-
-/*
- * Free llog handle and header data if exists. Used in llog_close() only
- */
-static void llog_free_handle(struct llog_handle *loghandle)
-{
-	LASSERT(loghandle != NULL);
-
-	/* failed llog_init_handle */
-	if (!loghandle->lgh_hdr)
-		goto out;
-
-	if (loghandle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)
-		LASSERT(list_empty(&loghandle->u.phd.phd_entry));
-	else if (loghandle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
-		LASSERT(list_empty(&loghandle->u.chd.chd_head));
-	LASSERT(sizeof(*(loghandle->lgh_hdr)) == LLOG_CHUNK_SIZE);
-	kfree(loghandle->lgh_hdr);
-out:
-	kfree(loghandle);
-}
-
-void llog_handle_get(struct llog_handle *loghandle)
-{
-	atomic_inc(&loghandle->lgh_refcount);
-}
-
-void llog_handle_put(struct llog_handle *loghandle)
-{
-	LASSERT(atomic_read(&loghandle->lgh_refcount) > 0);
-	if (atomic_dec_and_test(&loghandle->lgh_refcount))
-		llog_free_handle(loghandle);
-}
-
-/* returns negative on error; 0 if success; 1 if success & log destroyed */
-int llog_cancel_rec(const struct lu_env *env, struct llog_handle *loghandle,
-		    int index)
-{
-	struct llog_log_hdr *llh = loghandle->lgh_hdr;
-	int rc = 0;
-
-	CDEBUG(D_RPCTRACE, "Canceling %d in log "DOSTID"\n",
-	       index, POSTID(&loghandle->lgh_id.lgl_oi));
-
-	if (index == 0) {
-		CERROR("Can't cancel index 0 which is header\n");
-		return -EINVAL;
-	}
-
-	spin_lock(&loghandle->lgh_hdr_lock);
-	if (!ext2_clear_bit(index, llh->llh_bitmap)) {
-		spin_unlock(&loghandle->lgh_hdr_lock);
-		CDEBUG(D_RPCTRACE, "Catalog index %u already clear?\n", index);
-		return -ENOENT;
-	}
-
-	llh->llh_count--;
-
-	if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
-	    (llh->llh_count == 1) &&
-	    (loghandle->lgh_last_idx == (LLOG_BITMAP_BYTES * 8) - 1)) {
-		spin_unlock(&loghandle->lgh_hdr_lock);
-		rc = llog_destroy(env, loghandle);
-		if (rc < 0) {
-			CERROR("%s: can't destroy empty llog #"DOSTID
-			       "#%08x: rc = %d\n",
-			       loghandle->lgh_ctxt->loc_obd->obd_name,
-			       POSTID(&loghandle->lgh_id.lgl_oi),
-			       loghandle->lgh_id.lgl_ogen, rc);
-			goto out_err;
-		}
-		return 1;
-	}
-	spin_unlock(&loghandle->lgh_hdr_lock);
-
-	rc = llog_write(env, loghandle, &llh->llh_hdr, NULL, 0, NULL, 0);
-	if (rc < 0) {
-		CERROR("%s: fail to write header for llog #"DOSTID
-		       "#%08x: rc = %d\n",
-		       loghandle->lgh_ctxt->loc_obd->obd_name,
-		       POSTID(&loghandle->lgh_id.lgl_oi),
-		       loghandle->lgh_id.lgl_ogen, rc);
-		goto out_err;
-	}
-	return 0;
-out_err:
-	spin_lock(&loghandle->lgh_hdr_lock);
-	ext2_set_bit(index, llh->llh_bitmap);
-	llh->llh_count++;
-	spin_unlock(&loghandle->lgh_hdr_lock);
-	return rc;
-}
-EXPORT_SYMBOL(llog_cancel_rec);
-
-static int llog_read_header(const struct lu_env *env,
-			    struct llog_handle *handle,
-			    struct obd_uuid *uuid)
-{
-	struct llog_operations *lop;
-	int rc;
-
-	rc = llog_handle2ops(handle, &lop);
-	if (rc)
-		return rc;
-
-	if (lop->lop_read_header == NULL)
-		return -EOPNOTSUPP;
-
-	rc = lop->lop_read_header(env, handle);
-	if (rc == LLOG_EEMPTY) {
-		struct llog_log_hdr *llh = handle->lgh_hdr;
-
-		handle->lgh_last_idx = 0; /* header is record with index 0 */
-		llh->llh_count = 1;	 /* for the header record */
-		llh->llh_hdr.lrh_type = LLOG_HDR_MAGIC;
-		llh->llh_hdr.lrh_len = llh->llh_tail.lrt_len = LLOG_CHUNK_SIZE;
-		llh->llh_hdr.lrh_index = llh->llh_tail.lrt_index = 0;
-		llh->llh_timestamp = get_seconds();
-		if (uuid)
-			memcpy(&llh->llh_tgtuuid, uuid,
-			       sizeof(llh->llh_tgtuuid));
-		llh->llh_bitmap_offset = offsetof(typeof(*llh), llh_bitmap);
-		ext2_set_bit(0, llh->llh_bitmap);
-		rc = 0;
-	}
-	return rc;
-}
-
-int llog_init_handle(const struct lu_env *env, struct llog_handle *handle,
-		     int flags, struct obd_uuid *uuid)
-{
-	struct llog_log_hdr	*llh;
-	int			 rc;
-
-	LASSERT(handle->lgh_hdr == NULL);
-
-	llh = kzalloc(sizeof(*llh), GFP_NOFS);
-	if (!llh)
-		return -ENOMEM;
-	handle->lgh_hdr = llh;
-	/* first assign flags to use llog_client_ops */
-	llh->llh_flags = flags;
-	rc = llog_read_header(env, handle, uuid);
-	if (rc == 0) {
-		if (unlikely((llh->llh_flags & LLOG_F_IS_PLAIN &&
-			      flags & LLOG_F_IS_CAT) ||
-			     (llh->llh_flags & LLOG_F_IS_CAT &&
-			      flags & LLOG_F_IS_PLAIN))) {
-			CERROR("%s: llog type is %s but initializing %s\n",
-			       handle->lgh_ctxt->loc_obd->obd_name,
-			       llh->llh_flags & LLOG_F_IS_CAT ?
-			       "catalog" : "plain",
-			       flags & LLOG_F_IS_CAT ? "catalog" : "plain");
-			rc = -EINVAL;
-			goto out;
-		} else if (llh->llh_flags &
-			   (LLOG_F_IS_PLAIN | LLOG_F_IS_CAT)) {
-			/*
-			 * it is possible to open llog without specifying llog
-			 * type so it is taken from llh_flags
-			 */
-			flags = llh->llh_flags;
-		} else {
-			/* for some reason the llh_flags has no type set */
-			CERROR("llog type is not specified!\n");
-			rc = -EINVAL;
-			goto out;
-		}
-		if (unlikely(uuid &&
-			     !obd_uuid_equals(uuid, &llh->llh_tgtuuid))) {
-			CERROR("%s: llog uuid mismatch: %s/%s\n",
-			       handle->lgh_ctxt->loc_obd->obd_name,
-			       (char *)uuid->uuid,
-			       (char *)llh->llh_tgtuuid.uuid);
-			rc = -EEXIST;
-			goto out;
-		}
-	}
-	if (flags & LLOG_F_IS_CAT) {
-		LASSERT(list_empty(&handle->u.chd.chd_head));
-		INIT_LIST_HEAD(&handle->u.chd.chd_head);
-		llh->llh_size = sizeof(struct llog_logid_rec);
-	} else if (!(flags & LLOG_F_IS_PLAIN)) {
-		CERROR("%s: unknown flags: %#x (expected %#x or %#x)\n",
-		       handle->lgh_ctxt->loc_obd->obd_name,
-		       flags, LLOG_F_IS_CAT, LLOG_F_IS_PLAIN);
-		rc = -EINVAL;
-	}
-out:
-	if (rc) {
-		kfree(llh);
-		handle->lgh_hdr = NULL;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(llog_init_handle);
-
-static int llog_process_thread(void *arg)
-{
-	struct llog_process_info	*lpi = arg;
-	struct llog_handle		*loghandle = lpi->lpi_loghandle;
-	struct llog_log_hdr		*llh = loghandle->lgh_hdr;
-	struct llog_process_cat_data	*cd  = lpi->lpi_catdata;
-	char				*buf;
-	__u64				 cur_offset = LLOG_CHUNK_SIZE;
-	__u64				 last_offset;
-	int				 rc = 0, index = 1, last_index;
-	int				 saved_index = 0;
-	int				 last_called_index = 0;
-
-	LASSERT(llh);
-
-	buf = kzalloc(LLOG_CHUNK_SIZE, GFP_NOFS);
-	if (!buf) {
-		lpi->lpi_rc = -ENOMEM;
-		return 0;
-	}
-
-	if (cd != NULL) {
-		last_called_index = cd->lpcd_first_idx;
-		index = cd->lpcd_first_idx + 1;
-	}
-	if (cd != NULL && cd->lpcd_last_idx)
-		last_index = cd->lpcd_last_idx;
-	else
-		last_index = LLOG_BITMAP_BYTES * 8 - 1;
-
-	while (rc == 0) {
-		struct llog_rec_hdr *rec;
-
-		/* skip records not set in bitmap */
-		while (index <= last_index &&
-		       !ext2_test_bit(index, llh->llh_bitmap))
-			++index;
-
-		LASSERT(index <= last_index + 1);
-		if (index == last_index + 1)
-			break;
-repeat:
-		CDEBUG(D_OTHER, "index: %d last_index %d\n",
-		       index, last_index);
-
-		/* get the buf with our target record; avoid old garbage */
-		memset(buf, 0, LLOG_CHUNK_SIZE);
-		last_offset = cur_offset;
-		rc = llog_next_block(lpi->lpi_env, loghandle, &saved_index,
-				     index, &cur_offset, buf, LLOG_CHUNK_SIZE);
-		if (rc)
-			goto out;
-
-		/* NB: when rec->lrh_len is accessed it is already swabbed
-		 * since it is used at the "end" of the loop and the rec
-		 * swabbing is done at the beginning of the loop. */
-		for (rec = (struct llog_rec_hdr *)buf;
-		     (char *)rec < buf + LLOG_CHUNK_SIZE;
-		     rec = (struct llog_rec_hdr *)((char *)rec + rec->lrh_len)){
-
-			CDEBUG(D_OTHER, "processing rec 0x%p type %#x\n",
-			       rec, rec->lrh_type);
-
-			if (LLOG_REC_HDR_NEEDS_SWABBING(rec))
-				lustre_swab_llog_rec(rec);
-
-			CDEBUG(D_OTHER, "after swabbing, type=%#x idx=%d\n",
-			       rec->lrh_type, rec->lrh_index);
-
-			if (rec->lrh_index == 0) {
-				/* probably another rec just got added? */
-				rc = 0;
-				if (index <= loghandle->lgh_last_idx)
-					goto repeat;
-				goto out; /* no more records */
-			}
-			if (rec->lrh_len == 0 ||
-			    rec->lrh_len > LLOG_CHUNK_SIZE) {
-				CWARN("invalid length %d in llog record for index %d/%d\n",
-				      rec->lrh_len,
-				      rec->lrh_index, index);
-				rc = -EINVAL;
-				goto out;
-			}
-
-			if (rec->lrh_index < index) {
-				CDEBUG(D_OTHER, "skipping lrh_index %d\n",
-				       rec->lrh_index);
-				continue;
-			}
-
-			CDEBUG(D_OTHER,
-			       "lrh_index: %d lrh_len: %d (%d remains)\n",
-			       rec->lrh_index, rec->lrh_len,
-			       (int)(buf + LLOG_CHUNK_SIZE - (char *)rec));
-
-			loghandle->lgh_cur_idx = rec->lrh_index;
-			loghandle->lgh_cur_offset = (char *)rec - (char *)buf +
-						    last_offset;
-
-			/* if set, process the callback on this record */
-			if (ext2_test_bit(index, llh->llh_bitmap)) {
-				rc = lpi->lpi_cb(lpi->lpi_env, loghandle, rec,
-						 lpi->lpi_cbdata);
-				last_called_index = index;
-				if (rc == LLOG_PROC_BREAK) {
-					goto out;
-				} else if (rc == LLOG_DEL_RECORD) {
-					llog_cancel_rec(lpi->lpi_env,
-							loghandle,
-							rec->lrh_index);
-					rc = 0;
-				}
-				if (rc)
-					goto out;
-			} else {
-				CDEBUG(D_OTHER, "Skipped index %d\n", index);
-			}
-
-			/* next record, still in buffer? */
-			++index;
-			if (index > last_index) {
-				rc = 0;
-				goto out;
-			}
-		}
-	}
-
-out:
-	if (cd != NULL)
-		cd->lpcd_last_idx = last_called_index;
-
-	kfree(buf);
-	lpi->lpi_rc = rc;
-	return 0;
-}
-
-static int llog_process_thread_daemonize(void *arg)
-{
-	struct llog_process_info	*lpi = arg;
-	struct lu_env			 env;
-	int				 rc;
-
-	unshare_fs_struct();
-
-	/* client env has no keys, tags is just 0 */
-	rc = lu_env_init(&env, LCT_LOCAL | LCT_MG_THREAD);
-	if (rc)
-		goto out;
-	lpi->lpi_env = &env;
-
-	rc = llog_process_thread(arg);
-
-	lu_env_fini(&env);
-out:
-	complete(&lpi->lpi_completion);
-	return rc;
-}
-
-int llog_process_or_fork(const struct lu_env *env,
-			 struct llog_handle *loghandle,
-			 llog_cb_t cb, void *data, void *catdata, bool fork)
-{
-	struct llog_process_info *lpi;
-	int		      rc;
-
-	lpi = kzalloc(sizeof(*lpi), GFP_NOFS);
-	if (!lpi) {
-		CERROR("cannot alloc pointer\n");
-		return -ENOMEM;
-	}
-	lpi->lpi_loghandle = loghandle;
-	lpi->lpi_cb	= cb;
-	lpi->lpi_cbdata    = data;
-	lpi->lpi_catdata   = catdata;
-
-	if (fork) {
-		/* The new thread can't use parent env,
-		 * init the new one in llog_process_thread_daemonize. */
-		lpi->lpi_env = NULL;
-		init_completion(&lpi->lpi_completion);
-		rc = PTR_ERR(kthread_run(llog_process_thread_daemonize, lpi,
-					     "llog_process_thread"));
-		if (IS_ERR_VALUE(rc)) {
-			CERROR("%s: cannot start thread: rc = %d\n",
-			       loghandle->lgh_ctxt->loc_obd->obd_name, rc);
-			kfree(lpi);
-			return rc;
-		}
-		wait_for_completion(&lpi->lpi_completion);
-	} else {
-		lpi->lpi_env = env;
-		llog_process_thread(lpi);
-	}
-	rc = lpi->lpi_rc;
-	kfree(lpi);
-	return rc;
-}
-EXPORT_SYMBOL(llog_process_or_fork);
-
-int llog_process(const struct lu_env *env, struct llog_handle *loghandle,
-		 llog_cb_t cb, void *data, void *catdata)
-{
-	return llog_process_or_fork(env, loghandle, cb, data, catdata, true);
-}
-EXPORT_SYMBOL(llog_process);
-
-int llog_reverse_process(const struct lu_env *env,
-			 struct llog_handle *loghandle, llog_cb_t cb,
-			 void *data, void *catdata)
-{
-	struct llog_log_hdr *llh = loghandle->lgh_hdr;
-	struct llog_process_cat_data *cd = catdata;
-	void *buf;
-	int rc = 0, first_index = 1, index, idx;
-
-	buf = kzalloc(LLOG_CHUNK_SIZE, GFP_NOFS);
-	if (!buf)
-		return -ENOMEM;
-
-	if (cd != NULL)
-		first_index = cd->lpcd_first_idx + 1;
-	if (cd != NULL && cd->lpcd_last_idx)
-		index = cd->lpcd_last_idx;
-	else
-		index = LLOG_BITMAP_BYTES * 8 - 1;
-
-	while (rc == 0) {
-		struct llog_rec_hdr *rec;
-		struct llog_rec_tail *tail;
-
-		/* skip records not set in bitmap */
-		while (index >= first_index &&
-		       !ext2_test_bit(index, llh->llh_bitmap))
-			--index;
-
-		LASSERT(index >= first_index - 1);
-		if (index == first_index - 1)
-			break;
-
-		/* get the buf with our target record; avoid old garbage */
-		memset(buf, 0, LLOG_CHUNK_SIZE);
-		rc = llog_prev_block(env, loghandle, index, buf,
-				     LLOG_CHUNK_SIZE);
-		if (rc)
-			goto out;
-
-		rec = buf;
-		idx = rec->lrh_index;
-		CDEBUG(D_RPCTRACE, "index %u : idx %u\n", index, idx);
-		while (idx < index) {
-			rec = (void *)rec + rec->lrh_len;
-			if (LLOG_REC_HDR_NEEDS_SWABBING(rec))
-				lustre_swab_llog_rec(rec);
-			idx ++;
-		}
-		LASSERT(idx == index);
-		tail = (void *)rec + rec->lrh_len - sizeof(*tail);
-
-		/* process records in buffer, starting where we found one */
-		while ((void *)tail > buf) {
-			if (tail->lrt_index == 0) {
-				/* no more records */
-				rc = 0;
-				goto out;
-			}
-
-			/* if set, process the callback on this record */
-			if (ext2_test_bit(index, llh->llh_bitmap)) {
-				rec = (void *)tail - tail->lrt_len +
-				      sizeof(*tail);
-
-				rc = cb(env, loghandle, rec, data);
-				if (rc == LLOG_PROC_BREAK) {
-					goto out;
-				} else if (rc == LLOG_DEL_RECORD) {
-					llog_cancel_rec(env, loghandle,
-							tail->lrt_index);
-					rc = 0;
-				}
-				if (rc)
-					goto out;
-			}
-
-			/* previous record, still in buffer? */
-			--index;
-			if (index < first_index) {
-				rc = 0;
-				goto out;
-			}
-			tail = (void *)tail - tail->lrt_len;
-		}
-	}
-
-out:
-	kfree(buf);
-	return rc;
-}
-EXPORT_SYMBOL(llog_reverse_process);
-
-/**
- * new llog API
- *
- * API functions:
- *      llog_open - open llog, may not exist
- *      llog_exist - check if llog exists
- *      llog_close - close opened llog, pair for open, frees llog_handle
- *      llog_declare_create - declare llog creation
- *      llog_create - create new llog on disk, need transaction handle
- *      llog_declare_write_rec - declaration of llog write
- *      llog_write_rec - write llog record on disk, need transaction handle
- *      llog_declare_add - declare llog catalog record addition
- *      llog_add - add llog record in catalog, need transaction handle
- */
-int llog_exist(struct llog_handle *loghandle)
-{
-	struct llog_operations	*lop;
-	int			 rc;
-
-	rc = llog_handle2ops(loghandle, &lop);
-	if (rc)
-		return rc;
-	if (lop->lop_exist == NULL)
-		return -EOPNOTSUPP;
-
-	rc = lop->lop_exist(loghandle);
-	return rc;
-}
-EXPORT_SYMBOL(llog_exist);
-
-int llog_declare_create(const struct lu_env *env,
-			struct llog_handle *loghandle, struct thandle *th)
-{
-	struct llog_operations	*lop;
-	int			 raised, rc;
-
-	rc = llog_handle2ops(loghandle, &lop);
-	if (rc)
-		return rc;
-	if (lop->lop_declare_create == NULL)
-		return -EOPNOTSUPP;
-
-	raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
-	if (!raised)
-		cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-	rc = lop->lop_declare_create(env, loghandle, th);
-	if (!raised)
-		cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-	return rc;
-}
-EXPORT_SYMBOL(llog_declare_create);
-
-int llog_create(const struct lu_env *env, struct llog_handle *handle,
-		struct thandle *th)
-{
-	struct llog_operations	*lop;
-	int			 raised, rc;
-
-	rc = llog_handle2ops(handle, &lop);
-	if (rc)
-		return rc;
-	if (lop->lop_create == NULL)
-		return -EOPNOTSUPP;
-
-	raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
-	if (!raised)
-		cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-	rc = lop->lop_create(env, handle, th);
-	if (!raised)
-		cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-	return rc;
-}
-EXPORT_SYMBOL(llog_create);
-
-int llog_declare_write_rec(const struct lu_env *env,
-			   struct llog_handle *handle,
-			   struct llog_rec_hdr *rec, int idx,
-			   struct thandle *th)
-{
-	struct llog_operations	*lop;
-	int			 raised, rc;
-
-	rc = llog_handle2ops(handle, &lop);
-	if (rc)
-		return rc;
-	LASSERT(lop);
-	if (lop->lop_declare_write_rec == NULL)
-		return -EOPNOTSUPP;
-
-	raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
-	if (!raised)
-		cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-	rc = lop->lop_declare_write_rec(env, handle, rec, idx, th);
-	if (!raised)
-		cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-	return rc;
-}
-EXPORT_SYMBOL(llog_declare_write_rec);
-
-int llog_write_rec(const struct lu_env *env, struct llog_handle *handle,
-		   struct llog_rec_hdr *rec, struct llog_cookie *logcookies,
-		   int numcookies, void *buf, int idx, struct thandle *th)
-{
-	struct llog_operations	*lop;
-	int			 raised, rc, buflen;
-
-	rc = llog_handle2ops(handle, &lop);
-	if (rc)
-		return rc;
-
-	LASSERT(lop);
-	if (lop->lop_write_rec == NULL)
-		return -EOPNOTSUPP;
-
-	if (buf)
-		buflen = rec->lrh_len + sizeof(struct llog_rec_hdr) +
-			 sizeof(struct llog_rec_tail);
-	else
-		buflen = rec->lrh_len;
-	LASSERT(cfs_size_round(buflen) == buflen);
-
-	raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
-	if (!raised)
-		cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-	rc = lop->lop_write_rec(env, handle, rec, logcookies, numcookies,
-				buf, idx, th);
-	if (!raised)
-		cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-	return rc;
-}
-EXPORT_SYMBOL(llog_write_rec);
-
-int llog_add(const struct lu_env *env, struct llog_handle *lgh,
-	     struct llog_rec_hdr *rec, struct llog_cookie *logcookies,
-	     void *buf, struct thandle *th)
-{
-	int raised, rc;
-
-	if (lgh->lgh_logops->lop_add == NULL)
-		return -EOPNOTSUPP;
-
-	raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
-	if (!raised)
-		cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-	rc = lgh->lgh_logops->lop_add(env, lgh, rec, logcookies, buf, th);
-	if (!raised)
-		cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-	return rc;
-}
-EXPORT_SYMBOL(llog_add);
-
-int llog_declare_add(const struct lu_env *env, struct llog_handle *lgh,
-		     struct llog_rec_hdr *rec, struct thandle *th)
-{
-	int raised, rc;
-
-	if (lgh->lgh_logops->lop_declare_add == NULL)
-		return -EOPNOTSUPP;
-
-	raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
-	if (!raised)
-		cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-	rc = lgh->lgh_logops->lop_declare_add(env, lgh, rec, th);
-	if (!raised)
-		cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-	return rc;
-}
-EXPORT_SYMBOL(llog_declare_add);
-
-/**
- * Helper function to open llog or create it if doesn't exist.
- * It hides all transaction handling from caller.
- */
-int llog_open_create(const struct lu_env *env, struct llog_ctxt *ctxt,
-		     struct llog_handle **res, struct llog_logid *logid,
-		     char *name)
-{
-	struct dt_device	*d;
-	struct thandle		*th;
-	int			 rc;
-
-	rc = llog_open(env, ctxt, res, logid, name, LLOG_OPEN_NEW);
-	if (rc)
-		return rc;
-
-	if (llog_exist(*res))
-		return 0;
-
-	LASSERT((*res)->lgh_obj != NULL);
-
-	d = lu2dt_dev((*res)->lgh_obj->do_lu.lo_dev);
-
-	th = dt_trans_create(env, d);
-	if (IS_ERR(th)) {
-		rc = PTR_ERR(th);
-		goto out;
-	}
-
-	rc = llog_declare_create(env, *res, th);
-	if (rc == 0) {
-		rc = dt_trans_start_local(env, d, th);
-		if (rc == 0)
-			rc = llog_create(env, *res, th);
-	}
-	dt_trans_stop(env, d, th);
-out:
-	if (rc)
-		llog_close(env, *res);
-	return rc;
-}
-EXPORT_SYMBOL(llog_open_create);
-
-/**
- * Helper function to delete existent llog.
- */
-int llog_erase(const struct lu_env *env, struct llog_ctxt *ctxt,
-	       struct llog_logid *logid, char *name)
-{
-	struct llog_handle	*handle;
-	int			 rc = 0, rc2;
-
-	/* nothing to erase */
-	if (name == NULL && logid == NULL)
-		return 0;
-
-	rc = llog_open(env, ctxt, &handle, logid, name, LLOG_OPEN_EXISTS);
-	if (rc < 0)
-		return rc;
-
-	rc = llog_init_handle(env, handle, LLOG_F_IS_PLAIN, NULL);
-	if (rc == 0)
-		rc = llog_destroy(env, handle);
-
-	rc2 = llog_close(env, handle);
-	if (rc == 0)
-		rc = rc2;
-	return rc;
-}
-EXPORT_SYMBOL(llog_erase);
-
-/*
- * Helper function for write record in llog.
- * It hides all transaction handling from caller.
- * Valid only with local llog.
- */
-int llog_write(const struct lu_env *env, struct llog_handle *loghandle,
-	       struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
-	       int cookiecount, void *buf, int idx)
-{
-	struct dt_device	*dt;
-	struct thandle		*th;
-	int			 rc;
-
-	LASSERT(loghandle);
-	LASSERT(loghandle->lgh_ctxt);
-	LASSERT(loghandle->lgh_obj != NULL);
-
-	dt = lu2dt_dev(loghandle->lgh_obj->do_lu.lo_dev);
-
-	th = dt_trans_create(env, dt);
-	if (IS_ERR(th))
-		return PTR_ERR(th);
-
-	rc = llog_declare_write_rec(env, loghandle, rec, idx, th);
-	if (rc)
-		goto out_trans;
-
-	rc = dt_trans_start_local(env, dt, th);
-	if (rc)
-		goto out_trans;
-
-	down_write(&loghandle->lgh_lock);
-	rc = llog_write_rec(env, loghandle, rec, reccookie,
-			    cookiecount, buf, idx, th);
-	up_write(&loghandle->lgh_lock);
-out_trans:
-	dt_trans_stop(env, dt, th);
-	return rc;
-}
-EXPORT_SYMBOL(llog_write);
-
-int llog_open(const struct lu_env *env, struct llog_ctxt *ctxt,
-	      struct llog_handle **lgh, struct llog_logid *logid,
-	      char *name, enum llog_open_param open_param)
-{
-	int	 raised;
-	int	 rc;
-
-	LASSERT(ctxt);
-	LASSERT(ctxt->loc_logops);
-
-	if (ctxt->loc_logops->lop_open == NULL) {
-		*lgh = NULL;
-		return -EOPNOTSUPP;
-	}
-
-	*lgh = llog_alloc_handle();
-	if (*lgh == NULL)
-		return -ENOMEM;
-	(*lgh)->lgh_ctxt = ctxt;
-	(*lgh)->lgh_logops = ctxt->loc_logops;
-
-	raised = cfs_cap_raised(CFS_CAP_SYS_RESOURCE);
-	if (!raised)
-		cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-	rc = ctxt->loc_logops->lop_open(env, *lgh, logid, name, open_param);
-	if (!raised)
-		cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-	if (rc) {
-		llog_free_handle(*lgh);
-		*lgh = NULL;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(llog_open);
-
-int llog_close(const struct lu_env *env, struct llog_handle *loghandle)
-{
-	struct llog_operations	*lop;
-	int			 rc;
-
-	rc = llog_handle2ops(loghandle, &lop);
-	if (rc)
-		goto out;
-	if (lop->lop_close == NULL) {
-		rc = -EOPNOTSUPP;
-		goto out;
-	}
-	rc = lop->lop_close(env, loghandle);
-out:
-	llog_handle_put(loghandle);
-	return rc;
-}
-EXPORT_SYMBOL(llog_close);
-
-int llog_is_empty(const struct lu_env *env, struct llog_ctxt *ctxt,
-		  char *name)
-{
-	struct llog_handle	*llh;
-	int			 rc;
-
-	rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
-	if (rc < 0) {
-		if (likely(rc == -ENOENT))
-			rc = 0;
-		goto out;
-	}
-
-	rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
-	if (rc)
-		goto out_close;
-	rc = llog_get_size(llh);
-
-out_close:
-	llog_close(env, llh);
-out:
-	/* header is record 1 */
-	return rc <= 1;
-}
-EXPORT_SYMBOL(llog_is_empty);
-
-int llog_copy_handler(const struct lu_env *env, struct llog_handle *llh,
-		      struct llog_rec_hdr *rec, void *data)
-{
-	struct llog_handle	*copy_llh = data;
-
-	/* Append all records */
-	return llog_write(env, copy_llh, rec, NULL, 0, NULL, -1);
-}
-EXPORT_SYMBOL(llog_copy_handler);
-
-/* backup plain llog */
-int llog_backup(const struct lu_env *env, struct obd_device *obd,
-		struct llog_ctxt *ctxt, struct llog_ctxt *bctxt,
-		char *name, char *backup)
-{
-	struct llog_handle	*llh, *bllh;
-	int			 rc;
-
-
-
-	/* open original log */
-	rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
-	if (rc < 0) {
-		/* the -ENOENT case is also reported to the caller
-		 * but silently so it should handle that if needed.
-		 */
-		if (rc != -ENOENT)
-			CERROR("%s: failed to open log %s: rc = %d\n",
-			       obd->obd_name, name, rc);
-		return rc;
-	}
-
-	rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
-	if (rc)
-		goto out_close;
-
-	/* Make sure there's no old backup log */
-	rc = llog_erase(env, bctxt, NULL, backup);
-	if (rc < 0 && rc != -ENOENT)
-		goto out_close;
-
-	/* open backup log */
-	rc = llog_open_create(env, bctxt, &bllh, NULL, backup);
-	if (rc) {
-		CERROR("%s: failed to open backup logfile %s: rc = %d\n",
-		       obd->obd_name, backup, rc);
-		goto out_close;
-	}
-
-	/* check that backup llog is not the same object as original one */
-	if (llh->lgh_obj == bllh->lgh_obj) {
-		CERROR("%s: backup llog %s to itself (%s), objects %p/%p\n",
-		       obd->obd_name, name, backup, llh->lgh_obj,
-		       bllh->lgh_obj);
-		rc = -EEXIST;
-		goto out_backup;
-	}
-
-	rc = llog_init_handle(env, bllh, LLOG_F_IS_PLAIN, NULL);
-	if (rc)
-		goto out_backup;
-
-	/* Copy log record by record */
-	rc = llog_process_or_fork(env, llh, llog_copy_handler, (void *)bllh,
-				  NULL, false);
-	if (rc)
-		CERROR("%s: failed to backup log %s: rc = %d\n",
-		       obd->obd_name, name, rc);
-out_backup:
-	llog_close(env, bllh);
-out_close:
-	llog_close(env, llh);
-	return rc;
-}
-EXPORT_SYMBOL(llog_backup);
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_cat.c b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
deleted file mode 100644
index 48dbbcf97702..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/llog_cat.c
+++ /dev/null
@@ -1,813 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/llog_cat.c
- *
- * OST<->MDS recovery logging infrastructure.
- *
- * Invariants in implementation:
- * - we do not share logs among different OST<->MDS connections, so that
- *   if an OST or MDS fails it need only look at log(s) relevant to itself
- *
- * Author: Andreas Dilger <adilger@clusterfs.com>
- * Author: Alexey Zhuravlev <alexey.zhuravlev@intel.com>
- * Author: Mikhail Pershin <mike.pershin@intel.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOG
-
-
-#include "../include/obd_class.h"
-
-#include "llog_internal.h"
-
-/* Create a new log handle and add it to the open list.
- * This log handle will be closed when all of the records in it are removed.
- *
- * Assumes caller has already pushed us into the kernel context and is locking.
- */
-static int llog_cat_new_log(const struct lu_env *env,
-			    struct llog_handle *cathandle,
-			    struct llog_handle *loghandle,
-			    struct thandle *th)
-{
-
-	struct llog_log_hdr *llh;
-	struct llog_logid_rec rec = { { 0 }, };
-	int rc, index, bitmap_size;
-
-	llh = cathandle->lgh_hdr;
-	bitmap_size = LLOG_BITMAP_SIZE(llh);
-
-	index = (cathandle->lgh_last_idx + 1) % bitmap_size;
-
-	/* maximum number of available slots in catlog is bitmap_size - 2 */
-	if (llh->llh_cat_idx == index) {
-		CERROR("no free catalog slots for log...\n");
-		return -ENOSPC;
-	}
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_MDS_LLOG_CREATE_FAILED))
-		return -ENOSPC;
-
-	rc = llog_create(env, loghandle, th);
-	/* if llog is already created, no need to initialize it */
-	if (rc == -EEXIST) {
-		return 0;
-	} else if (rc != 0) {
-		CERROR("%s: can't create new plain llog in catalog: rc = %d\n",
-		       loghandle->lgh_ctxt->loc_obd->obd_name, rc);
-		return rc;
-	}
-
-	rc = llog_init_handle(env, loghandle,
-			      LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
-			      &cathandle->lgh_hdr->llh_tgtuuid);
-	if (rc)
-		goto out_destroy;
-
-	if (index == 0)
-		index = 1;
-
-	spin_lock(&loghandle->lgh_hdr_lock);
-	llh->llh_count++;
-	if (ext2_set_bit(index, llh->llh_bitmap)) {
-		CERROR("argh, index %u already set in log bitmap?\n",
-		       index);
-		spin_unlock(&loghandle->lgh_hdr_lock);
-		LBUG(); /* should never happen */
-	}
-	spin_unlock(&loghandle->lgh_hdr_lock);
-
-	cathandle->lgh_last_idx = index;
-	llh->llh_tail.lrt_index = index;
-
-	CDEBUG(D_RPCTRACE,
-	       "new recovery log "DOSTID":%x for index %u of catalog"
-	       DOSTID"\n", POSTID(&loghandle->lgh_id.lgl_oi),
-	       loghandle->lgh_id.lgl_ogen, index,
-	       POSTID(&cathandle->lgh_id.lgl_oi));
-	/* build the record for this log in the catalog */
-	rec.lid_hdr.lrh_len = sizeof(rec);
-	rec.lid_hdr.lrh_index = index;
-	rec.lid_hdr.lrh_type = LLOG_LOGID_MAGIC;
-	rec.lid_id = loghandle->lgh_id;
-	rec.lid_tail.lrt_len = sizeof(rec);
-	rec.lid_tail.lrt_index = index;
-
-	/* update the catalog: header and record */
-	rc = llog_write_rec(env, cathandle, &rec.lid_hdr,
-			    &loghandle->u.phd.phd_cookie, 1, NULL, index, th);
-	if (rc < 0)
-		goto out_destroy;
-
-	loghandle->lgh_hdr->llh_cat_idx = index;
-	return 0;
-out_destroy:
-	llog_destroy(env, loghandle);
-	return rc;
-}
-
-/* Open an existent log handle and add it to the open list.
- * This log handle will be closed when all of the records in it are removed.
- *
- * Assumes caller has already pushed us into the kernel context and is locking.
- * We return a lock on the handle to ensure nobody yanks it from us.
- *
- * This takes extra reference on llog_handle via llog_handle_get() and require
- * this reference to be put by caller using llog_handle_put()
- */
-int llog_cat_id2handle(const struct lu_env *env, struct llog_handle *cathandle,
-		       struct llog_handle **res, struct llog_logid *logid)
-{
-	struct llog_handle	*loghandle;
-	int			 rc = 0;
-
-	if (cathandle == NULL)
-		return -EBADF;
-
-	down_write(&cathandle->lgh_lock);
-	list_for_each_entry(loghandle, &cathandle->u.chd.chd_head,
-				u.phd.phd_entry) {
-		struct llog_logid *cgl = &loghandle->lgh_id;
-
-		if (ostid_id(&cgl->lgl_oi) == ostid_id(&logid->lgl_oi) &&
-		    ostid_seq(&cgl->lgl_oi) == ostid_seq(&logid->lgl_oi)) {
-			if (cgl->lgl_ogen != logid->lgl_ogen) {
-				CERROR("%s: log "DOSTID" generation %x != %x\n",
-				       loghandle->lgh_ctxt->loc_obd->obd_name,
-				       POSTID(&logid->lgl_oi), cgl->lgl_ogen,
-				       logid->lgl_ogen);
-				continue;
-			}
-			loghandle->u.phd.phd_cat_handle = cathandle;
-			up_write(&cathandle->lgh_lock);
-			rc = 0;
-			goto out;
-		}
-	}
-	up_write(&cathandle->lgh_lock);
-
-	rc = llog_open(env, cathandle->lgh_ctxt, &loghandle, logid, NULL,
-		       LLOG_OPEN_EXISTS);
-	if (rc < 0) {
-		CERROR("%s: error opening log id "DOSTID":%x: rc = %d\n",
-		       cathandle->lgh_ctxt->loc_obd->obd_name,
-		       POSTID(&logid->lgl_oi), logid->lgl_ogen, rc);
-		return rc;
-	}
-
-	rc = llog_init_handle(env, loghandle, LLOG_F_IS_PLAIN, NULL);
-	if (rc < 0) {
-		llog_close(env, loghandle);
-		loghandle = NULL;
-		return rc;
-	}
-
-	down_write(&cathandle->lgh_lock);
-	list_add(&loghandle->u.phd.phd_entry, &cathandle->u.chd.chd_head);
-	up_write(&cathandle->lgh_lock);
-
-	loghandle->u.phd.phd_cat_handle = cathandle;
-	loghandle->u.phd.phd_cookie.lgc_lgl = cathandle->lgh_id;
-	loghandle->u.phd.phd_cookie.lgc_index =
-				loghandle->lgh_hdr->llh_cat_idx;
-out:
-	llog_handle_get(loghandle);
-	*res = loghandle;
-	return 0;
-}
-
-int llog_cat_close(const struct lu_env *env, struct llog_handle *cathandle)
-{
-	struct llog_handle	*loghandle, *n;
-	int			 rc;
-
-	list_for_each_entry_safe(loghandle, n, &cathandle->u.chd.chd_head,
-				     u.phd.phd_entry) {
-		struct llog_log_hdr	*llh = loghandle->lgh_hdr;
-		int			 index;
-
-		/* unlink open-not-created llogs */
-		list_del_init(&loghandle->u.phd.phd_entry);
-		llh = loghandle->lgh_hdr;
-		if (loghandle->lgh_obj != NULL && llh != NULL &&
-		    (llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
-		    (llh->llh_count == 1)) {
-			rc = llog_destroy(env, loghandle);
-			if (rc)
-				CERROR("%s: failure destroying log during cleanup: rc = %d\n",
-				       loghandle->lgh_ctxt->loc_obd->obd_name,
-				       rc);
-
-			index = loghandle->u.phd.phd_cookie.lgc_index;
-			llog_cat_cleanup(env, cathandle, NULL, index);
-		}
-		llog_close(env, loghandle);
-	}
-	/* if handle was stored in ctxt, remove it too */
-	if (cathandle->lgh_ctxt->loc_handle == cathandle)
-		cathandle->lgh_ctxt->loc_handle = NULL;
-	rc = llog_close(env, cathandle);
-	return rc;
-}
-EXPORT_SYMBOL(llog_cat_close);
-
-/**
- * lockdep markers for nested struct llog_handle::lgh_lock locking.
- */
-enum {
-	LLOGH_CAT,
-	LLOGH_LOG
-};
-
-/** Return the currently active log handle.  If the current log handle doesn't
- * have enough space left for the current record, start a new one.
- *
- * If reclen is 0, we only want to know what the currently active log is,
- * otherwise we get a lock on this log so nobody can steal our space.
- *
- * Assumes caller has already pushed us into the kernel context and is locking.
- *
- * NOTE: loghandle is write-locked upon successful return
- */
-static struct llog_handle *llog_cat_current_log(struct llog_handle *cathandle,
-						struct thandle *th)
-{
-	struct llog_handle *loghandle = NULL;
-
-	down_read_nested(&cathandle->lgh_lock, LLOGH_CAT);
-	loghandle = cathandle->u.chd.chd_current_log;
-	if (loghandle) {
-		struct llog_log_hdr *llh;
-
-		down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
-		llh = loghandle->lgh_hdr;
-		if (llh == NULL ||
-		    loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
-			up_read(&cathandle->lgh_lock);
-			return loghandle;
-		}
-		up_write(&loghandle->lgh_lock);
-	}
-	up_read(&cathandle->lgh_lock);
-
-	/* time to use next log */
-
-	/* first, we have to make sure the state hasn't changed */
-	down_write_nested(&cathandle->lgh_lock, LLOGH_CAT);
-	loghandle = cathandle->u.chd.chd_current_log;
-	if (loghandle) {
-		struct llog_log_hdr *llh;
-
-		down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
-		llh = loghandle->lgh_hdr;
-		LASSERT(llh);
-		if (loghandle->lgh_last_idx < LLOG_BITMAP_SIZE(llh) - 1) {
-			up_write(&cathandle->lgh_lock);
-			return loghandle;
-		}
-		up_write(&loghandle->lgh_lock);
-	}
-
-	CDEBUG(D_INODE, "use next log\n");
-
-	loghandle = cathandle->u.chd.chd_next_log;
-	cathandle->u.chd.chd_current_log = loghandle;
-	cathandle->u.chd.chd_next_log = NULL;
-	down_write_nested(&loghandle->lgh_lock, LLOGH_LOG);
-	up_write(&cathandle->lgh_lock);
-	LASSERT(loghandle);
-	return loghandle;
-}
-
-/* Add a single record to the recovery log(s) using a catalog
- * Returns as llog_write_record
- *
- * Assumes caller has already pushed us into the kernel context.
- */
-int llog_cat_add_rec(const struct lu_env *env, struct llog_handle *cathandle,
-		     struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
-		     void *buf, struct thandle *th)
-{
-	struct llog_handle *loghandle;
-	int rc;
-
-	LASSERT(rec->lrh_len <= LLOG_CHUNK_SIZE);
-	loghandle = llog_cat_current_log(cathandle, th);
-	LASSERT(!IS_ERR(loghandle));
-
-	/* loghandle is already locked by llog_cat_current_log() for us */
-	if (!llog_exist(loghandle)) {
-		rc = llog_cat_new_log(env, cathandle, loghandle, th);
-		if (rc < 0) {
-			up_write(&loghandle->lgh_lock);
-			return rc;
-		}
-	}
-	/* now let's try to add the record */
-	rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf, -1, th);
-	if (rc < 0)
-		CDEBUG_LIMIT(rc == -ENOSPC ? D_HA : D_ERROR,
-			     "llog_write_rec %d: lh=%p\n", rc, loghandle);
-	up_write(&loghandle->lgh_lock);
-	if (rc == -ENOSPC) {
-		/* try to use next log */
-		loghandle = llog_cat_current_log(cathandle, th);
-		LASSERT(!IS_ERR(loghandle));
-		/* new llog can be created concurrently */
-		if (!llog_exist(loghandle)) {
-			rc = llog_cat_new_log(env, cathandle, loghandle, th);
-			if (rc < 0) {
-				up_write(&loghandle->lgh_lock);
-				return rc;
-			}
-		}
-		/* now let's try to add the record */
-		rc = llog_write_rec(env, loghandle, rec, reccookie, 1, buf,
-				    -1, th);
-		if (rc < 0)
-			CERROR("llog_write_rec %d: lh=%p\n", rc, loghandle);
-		up_write(&loghandle->lgh_lock);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(llog_cat_add_rec);
-
-int llog_cat_declare_add_rec(const struct lu_env *env,
-			     struct llog_handle *cathandle,
-			     struct llog_rec_hdr *rec, struct thandle *th)
-{
-	struct llog_handle	*loghandle, *next;
-	int			 rc = 0;
-
-	if (cathandle->u.chd.chd_current_log == NULL) {
-		/* declare new plain llog */
-		down_write(&cathandle->lgh_lock);
-		if (cathandle->u.chd.chd_current_log == NULL) {
-			rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
-				       NULL, NULL, LLOG_OPEN_NEW);
-			if (rc == 0) {
-				cathandle->u.chd.chd_current_log = loghandle;
-				list_add_tail(&loghandle->u.phd.phd_entry,
-						  &cathandle->u.chd.chd_head);
-			}
-		}
-		up_write(&cathandle->lgh_lock);
-	} else if (cathandle->u.chd.chd_next_log == NULL) {
-		/* declare next plain llog */
-		down_write(&cathandle->lgh_lock);
-		if (cathandle->u.chd.chd_next_log == NULL) {
-			rc = llog_open(env, cathandle->lgh_ctxt, &loghandle,
-				       NULL, NULL, LLOG_OPEN_NEW);
-			if (rc == 0) {
-				cathandle->u.chd.chd_next_log = loghandle;
-				list_add_tail(&loghandle->u.phd.phd_entry,
-						  &cathandle->u.chd.chd_head);
-			}
-		}
-		up_write(&cathandle->lgh_lock);
-	}
-	if (rc)
-		goto out;
-
-	if (!llog_exist(cathandle->u.chd.chd_current_log)) {
-		rc = llog_declare_create(env, cathandle->u.chd.chd_current_log,
-					 th);
-		if (rc)
-			goto out;
-		llog_declare_write_rec(env, cathandle, NULL, -1, th);
-	}
-	/* declare records in the llogs */
-	rc = llog_declare_write_rec(env, cathandle->u.chd.chd_current_log,
-				    rec, -1, th);
-	if (rc)
-		goto out;
-
-	next = cathandle->u.chd.chd_next_log;
-	if (next) {
-		if (!llog_exist(next)) {
-			rc = llog_declare_create(env, next, th);
-			llog_declare_write_rec(env, cathandle, NULL, -1, th);
-		}
-		llog_declare_write_rec(env, next, rec, -1, th);
-	}
-out:
-	return rc;
-}
-EXPORT_SYMBOL(llog_cat_declare_add_rec);
-
-int llog_cat_add(const struct lu_env *env, struct llog_handle *cathandle,
-		 struct llog_rec_hdr *rec, struct llog_cookie *reccookie,
-		 void *buf)
-{
-	struct llog_ctxt	*ctxt;
-	struct dt_device	*dt;
-	struct thandle		*th = NULL;
-	int			 rc;
-
-	ctxt = cathandle->lgh_ctxt;
-	LASSERT(ctxt);
-	LASSERT(ctxt->loc_exp);
-
-	if (cathandle->lgh_obj != NULL) {
-		dt = ctxt->loc_exp->exp_obd->obd_lvfs_ctxt.dt;
-		LASSERT(dt);
-
-		th = dt_trans_create(env, dt);
-		if (IS_ERR(th))
-			return PTR_ERR(th);
-
-		rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
-		if (rc)
-			goto out_trans;
-
-		rc = dt_trans_start_local(env, dt, th);
-		if (rc)
-			goto out_trans;
-		rc = llog_cat_add_rec(env, cathandle, rec, reccookie, buf, th);
-out_trans:
-		dt_trans_stop(env, dt, th);
-	} else { /* lvfs compat code */
-		LASSERT(cathandle->lgh_file != NULL);
-		rc = llog_cat_declare_add_rec(env, cathandle, rec, th);
-		if (rc == 0)
-			rc = llog_cat_add_rec(env, cathandle, rec, reccookie,
-					      buf, th);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(llog_cat_add);
-
-/* For each cookie in the cookie array, we clear the log in-use bit and either:
- * - the log is empty, so mark it free in the catalog header and delete it
- * - the log is not empty, just write out the log header
- *
- * The cookies may be in different log files, so we need to get new logs
- * each time.
- *
- * Assumes caller has already pushed us into the kernel context.
- */
-int llog_cat_cancel_records(const struct lu_env *env,
-			    struct llog_handle *cathandle, int count,
-			    struct llog_cookie *cookies)
-{
-	int i, index, rc = 0, failed = 0;
-
-	for (i = 0; i < count; i++, cookies++) {
-		struct llog_handle	*loghandle;
-		struct llog_logid	*lgl = &cookies->lgc_lgl;
-		int			 lrc;
-
-		rc = llog_cat_id2handle(env, cathandle, &loghandle, lgl);
-		if (rc) {
-			CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
-			       cathandle->lgh_ctxt->loc_obd->obd_name,
-			       POSTID(&lgl->lgl_oi), rc);
-			failed++;
-			continue;
-		}
-
-		lrc = llog_cancel_rec(env, loghandle, cookies->lgc_index);
-		if (lrc == 1) {	  /* log has been destroyed */
-			index = loghandle->u.phd.phd_cookie.lgc_index;
-			rc = llog_cat_cleanup(env, cathandle, loghandle,
-					      index);
-		} else if (lrc == -ENOENT) {
-			if (rc == 0) /* ENOENT shouldn't rewrite any error */
-				rc = lrc;
-		} else if (lrc < 0) {
-			failed++;
-			rc = lrc;
-		}
-		llog_handle_put(loghandle);
-	}
-	if (rc)
-		CERROR("%s: fail to cancel %d of %d llog-records: rc = %d\n",
-		       cathandle->lgh_ctxt->loc_obd->obd_name, failed, count,
-		       rc);
-
-	return rc;
-}
-EXPORT_SYMBOL(llog_cat_cancel_records);
-
-static int llog_cat_process_cb(const struct lu_env *env,
-			       struct llog_handle *cat_llh,
-			       struct llog_rec_hdr *rec, void *data)
-{
-	struct llog_process_data *d = data;
-	struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
-	struct llog_handle *llh;
-	int rc;
-
-	if (rec->lrh_type != LLOG_LOGID_MAGIC) {
-		CERROR("invalid record in catalog\n");
-		return -EINVAL;
-	}
-	CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
-	       DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
-	       rec->lrh_index, POSTID(&cat_llh->lgh_id.lgl_oi));
-
-	rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
-	if (rc) {
-		CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
-		       cat_llh->lgh_ctxt->loc_obd->obd_name,
-		       POSTID(&lir->lid_id.lgl_oi), rc);
-		return rc;
-	}
-
-	if (rec->lrh_index < d->lpd_startcat)
-		/* Skip processing of the logs until startcat */
-		rc = 0;
-	else if (d->lpd_startidx > 0) {
-		struct llog_process_cat_data cd;
-
-		cd.lpcd_first_idx = d->lpd_startidx;
-		cd.lpcd_last_idx = 0;
-		rc = llog_process_or_fork(env, llh, d->lpd_cb, d->lpd_data,
-					  &cd, false);
-		/* Continue processing the next log from idx 0 */
-		d->lpd_startidx = 0;
-	} else {
-		rc = llog_process_or_fork(env, llh, d->lpd_cb, d->lpd_data,
-					  NULL, false);
-	}
-
-	llog_handle_put(llh);
-
-	return rc;
-}
-
-int llog_cat_process_or_fork(const struct lu_env *env,
-			     struct llog_handle *cat_llh,
-			     llog_cb_t cb, void *data, int startcat,
-			     int startidx, bool fork)
-{
-	struct llog_process_data d;
-	struct llog_log_hdr *llh = cat_llh->lgh_hdr;
-	int rc;
-
-	LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
-	d.lpd_data = data;
-	d.lpd_cb = cb;
-	d.lpd_startcat = startcat;
-	d.lpd_startidx = startidx;
-
-	if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
-		struct llog_process_cat_data cd;
-
-		CWARN("catlog "DOSTID" crosses index zero\n",
-		      POSTID(&cat_llh->lgh_id.lgl_oi));
-
-		cd.lpcd_first_idx = llh->llh_cat_idx;
-		cd.lpcd_last_idx = 0;
-		rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
-					  &d, &cd, fork);
-		if (rc != 0)
-			return rc;
-
-		cd.lpcd_first_idx = 0;
-		cd.lpcd_last_idx = cat_llh->lgh_last_idx;
-		rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
-					  &d, &cd, fork);
-	} else {
-		rc = llog_process_or_fork(env, cat_llh, llog_cat_process_cb,
-					  &d, NULL, fork);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(llog_cat_process_or_fork);
-
-int llog_cat_process(const struct lu_env *env, struct llog_handle *cat_llh,
-		     llog_cb_t cb, void *data, int startcat, int startidx)
-{
-	return llog_cat_process_or_fork(env, cat_llh, cb, data, startcat,
-					startidx, false);
-}
-EXPORT_SYMBOL(llog_cat_process);
-
-static int llog_cat_reverse_process_cb(const struct lu_env *env,
-				       struct llog_handle *cat_llh,
-				       struct llog_rec_hdr *rec, void *data)
-{
-	struct llog_process_data *d = data;
-	struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
-	struct llog_handle *llh;
-	int rc;
-
-	if (le32_to_cpu(rec->lrh_type) != LLOG_LOGID_MAGIC) {
-		CERROR("invalid record in catalog\n");
-		return -EINVAL;
-	}
-	CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
-	       DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
-	       le32_to_cpu(rec->lrh_index), POSTID(&cat_llh->lgh_id.lgl_oi));
-
-	rc = llog_cat_id2handle(env, cat_llh, &llh, &lir->lid_id);
-	if (rc) {
-		CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
-		       cat_llh->lgh_ctxt->loc_obd->obd_name,
-		       POSTID(&lir->lid_id.lgl_oi), rc);
-		return rc;
-	}
-
-	rc = llog_reverse_process(env, llh, d->lpd_cb, d->lpd_data, NULL);
-	llog_handle_put(llh);
-	return rc;
-}
-
-int llog_cat_reverse_process(const struct lu_env *env,
-			     struct llog_handle *cat_llh,
-			     llog_cb_t cb, void *data)
-{
-	struct llog_process_data d;
-	struct llog_process_cat_data cd;
-	struct llog_log_hdr *llh = cat_llh->lgh_hdr;
-	int rc;
-
-	LASSERT(llh->llh_flags & LLOG_F_IS_CAT);
-	d.lpd_data = data;
-	d.lpd_cb = cb;
-
-	if (llh->llh_cat_idx > cat_llh->lgh_last_idx) {
-		CWARN("catalog "DOSTID" crosses index zero\n",
-		      POSTID(&cat_llh->lgh_id.lgl_oi));
-
-		cd.lpcd_first_idx = 0;
-		cd.lpcd_last_idx = cat_llh->lgh_last_idx;
-		rc = llog_reverse_process(env, cat_llh,
-					  llog_cat_reverse_process_cb,
-					  &d, &cd);
-		if (rc != 0)
-			return rc;
-
-		cd.lpcd_first_idx = le32_to_cpu(llh->llh_cat_idx);
-		cd.lpcd_last_idx = 0;
-		rc = llog_reverse_process(env, cat_llh,
-					  llog_cat_reverse_process_cb,
-					  &d, &cd);
-	} else {
-		rc = llog_reverse_process(env, cat_llh,
-					  llog_cat_reverse_process_cb,
-					  &d, NULL);
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(llog_cat_reverse_process);
-
-static int llog_cat_set_first_idx(struct llog_handle *cathandle, int index)
-{
-	struct llog_log_hdr *llh = cathandle->lgh_hdr;
-	int i, bitmap_size, idx;
-
-	bitmap_size = LLOG_BITMAP_SIZE(llh);
-	if (llh->llh_cat_idx == (index - 1)) {
-		idx = llh->llh_cat_idx + 1;
-		llh->llh_cat_idx = idx;
-		if (idx == cathandle->lgh_last_idx)
-			goto out;
-		for (i = (index + 1) % bitmap_size;
-		     i != cathandle->lgh_last_idx;
-		     i = (i + 1) % bitmap_size) {
-			if (!ext2_test_bit(i, llh->llh_bitmap)) {
-				idx = llh->llh_cat_idx + 1;
-				llh->llh_cat_idx = idx;
-			} else if (i == 0) {
-				llh->llh_cat_idx = 0;
-			} else {
-				break;
-			}
-		}
-out:
-		CDEBUG(D_RPCTRACE, "set catlog "DOSTID" first idx %u\n",
-		       POSTID(&cathandle->lgh_id.lgl_oi), llh->llh_cat_idx);
-	}
-
-	return 0;
-}
-
-/* Cleanup deleted plain llog traces from catalog */
-int llog_cat_cleanup(const struct lu_env *env, struct llog_handle *cathandle,
-		     struct llog_handle *loghandle, int index)
-{
-	int rc;
-
-	LASSERT(index);
-	if (loghandle != NULL) {
-		/* remove destroyed llog from catalog list and
-		 * chd_current_log variable */
-		down_write(&cathandle->lgh_lock);
-		if (cathandle->u.chd.chd_current_log == loghandle)
-			cathandle->u.chd.chd_current_log = NULL;
-		list_del_init(&loghandle->u.phd.phd_entry);
-		up_write(&cathandle->lgh_lock);
-		LASSERT(index == loghandle->u.phd.phd_cookie.lgc_index);
-		/* llog was opened and keep in a list, close it now */
-		llog_close(env, loghandle);
-	}
-	/* remove plain llog entry from catalog by index */
-	llog_cat_set_first_idx(cathandle, index);
-	rc = llog_cancel_rec(env, cathandle, index);
-	if (rc == 0)
-		CDEBUG(D_HA, "cancel plain log at index %u of catalog " DOSTID "\n",
-		       index, POSTID(&cathandle->lgh_id.lgl_oi));
-	return rc;
-}
-
-static int cat_cancel_cb(const struct lu_env *env, struct llog_handle *cathandle,
-		  struct llog_rec_hdr *rec, void *data)
-{
-	struct llog_logid_rec	*lir = (struct llog_logid_rec *)rec;
-	struct llog_handle	*loghandle;
-	struct llog_log_hdr	*llh;
-	int			 rc;
-
-	if (rec->lrh_type != LLOG_LOGID_MAGIC) {
-		CERROR("invalid record in catalog\n");
-		return -EINVAL;
-	}
-
-	CDEBUG(D_HA, "processing log "DOSTID":%x at index %u of catalog "
-	       DOSTID"\n", POSTID(&lir->lid_id.lgl_oi), lir->lid_id.lgl_ogen,
-	       rec->lrh_index, POSTID(&cathandle->lgh_id.lgl_oi));
-
-	rc = llog_cat_id2handle(env, cathandle, &loghandle, &lir->lid_id);
-	if (rc) {
-		CERROR("%s: cannot find handle for llog "DOSTID": %d\n",
-		       cathandle->lgh_ctxt->loc_obd->obd_name,
-		       POSTID(&lir->lid_id.lgl_oi), rc);
-		if (rc == -ENOENT || rc == -ESTALE) {
-			/* remove index from catalog */
-			llog_cat_cleanup(env, cathandle, NULL, rec->lrh_index);
-		}
-		return rc;
-	}
-
-	llh = loghandle->lgh_hdr;
-	if ((llh->llh_flags & LLOG_F_ZAP_WHEN_EMPTY) &&
-	    (llh->llh_count == 1)) {
-		rc = llog_destroy(env, loghandle);
-		if (rc)
-			CERROR("%s: fail to destroy empty log: rc = %d\n",
-			       loghandle->lgh_ctxt->loc_obd->obd_name, rc);
-
-		llog_cat_cleanup(env, cathandle, loghandle,
-				 loghandle->u.phd.phd_cookie.lgc_index);
-	}
-	llog_handle_put(loghandle);
-
-	return rc;
-}
-
-/* helper to initialize catalog llog and process it to cancel */
-int llog_cat_init_and_process(const struct lu_env *env,
-			      struct llog_handle *llh)
-{
-	int rc;
-
-	rc = llog_init_handle(env, llh, LLOG_F_IS_CAT, NULL);
-	if (rc)
-		return rc;
-
-	rc = llog_process_or_fork(env, llh, cat_cancel_cb, NULL, NULL, false);
-	if (rc)
-		CERROR("%s: llog_process() with cat_cancel_cb failed: rc = %d\n",
-		       llh->lgh_ctxt->loc_obd->obd_name, rc);
-	return 0;
-}
-EXPORT_SYMBOL(llog_cat_init_and_process);
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_internal.h b/drivers/staging/lustre/lustre/obdclass/llog_internal.h
deleted file mode 100644
index 5332131a2a2e..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/llog_internal.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef __LLOG_INTERNAL_H__
-#define __LLOG_INTERNAL_H__
-
-#include "../include/lustre_log.h"
-
-struct llog_process_info {
-	struct llog_handle *lpi_loghandle;
-	llog_cb_t	   lpi_cb;
-	void	       *lpi_cbdata;
-	void	       *lpi_catdata;
-	int		 lpi_rc;
-	struct completion	lpi_completion;
-	const struct lu_env	*lpi_env;
-
-};
-
-struct llog_thread_info {
-	struct lu_attr			 lgi_attr;
-	struct lu_fid			 lgi_fid;
-	struct dt_object_format		 lgi_dof;
-	struct lu_buf			 lgi_buf;
-	loff_t				 lgi_off;
-	struct llog_rec_hdr		 lgi_lrh;
-	struct llog_rec_tail		 lgi_tail;
-};
-
-extern struct lu_context_key llog_thread_key;
-
-static inline struct llog_thread_info *llog_info(const struct lu_env *env)
-{
-	struct llog_thread_info *lgi;
-
-	lgi = lu_context_key_get(&env->le_ctx, &llog_thread_key);
-	LASSERT(lgi);
-	return lgi;
-}
-
-static inline void
-lustre_build_llog_lvfs_oid(struct llog_logid *logid, __u64 ino, __u32 gen)
-{
-	ostid_set_seq_llog(&logid->lgl_oi);
-	ostid_set_id(&logid->lgl_oi, ino);
-	logid->lgl_ogen = gen;
-}
-
-int llog_info_init(void);
-void llog_info_fini(void);
-
-void llog_handle_get(struct llog_handle *loghandle);
-void llog_handle_put(struct llog_handle *loghandle);
-int llog_cat_id2handle(const struct lu_env *env, struct llog_handle *cathandle,
-		       struct llog_handle **res, struct llog_logid *logid);
-int class_config_dump_handler(const struct lu_env *env,
-			      struct llog_handle *handle,
-			      struct llog_rec_hdr *rec, void *data);
-int class_config_parse_rec(struct llog_rec_hdr *rec, char *buf, int size);
-int llog_process_or_fork(const struct lu_env *env,
-			 struct llog_handle *loghandle,
-			 llog_cb_t cb, void *data, void *catdata, bool fork);
-int llog_cat_cleanup(const struct lu_env *env, struct llog_handle *cathandle,
-		     struct llog_handle *loghandle, int index);
-#endif
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_obd.c b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
deleted file mode 100644
index 81ab27e7376f..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/llog_obd.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LOG
-
-
-#include "../include/obd_class.h"
-#include "../include/lustre_log.h"
-#include "llog_internal.h"
-
-/* helper functions for calling the llog obd methods */
-static struct llog_ctxt *llog_new_ctxt(struct obd_device *obd)
-{
-	struct llog_ctxt *ctxt;
-
-	ctxt = kzalloc(sizeof(*ctxt), GFP_NOFS);
-	if (!ctxt)
-		return NULL;
-
-	ctxt->loc_obd = obd;
-	atomic_set(&ctxt->loc_refcount, 1);
-
-	return ctxt;
-}
-
-static void llog_ctxt_destroy(struct llog_ctxt *ctxt)
-{
-	if (ctxt->loc_exp) {
-		class_export_put(ctxt->loc_exp);
-		ctxt->loc_exp = NULL;
-	}
-	if (ctxt->loc_imp) {
-		class_import_put(ctxt->loc_imp);
-		ctxt->loc_imp = NULL;
-	}
-	kfree(ctxt);
-}
-
-int __llog_ctxt_put(const struct lu_env *env, struct llog_ctxt *ctxt)
-{
-	struct obd_llog_group *olg = ctxt->loc_olg;
-	struct obd_device *obd;
-	int rc = 0;
-
-	spin_lock(&olg->olg_lock);
-	if (!atomic_dec_and_test(&ctxt->loc_refcount)) {
-		spin_unlock(&olg->olg_lock);
-		return rc;
-	}
-	olg->olg_ctxts[ctxt->loc_idx] = NULL;
-	spin_unlock(&olg->olg_lock);
-
-	obd = ctxt->loc_obd;
-	spin_lock(&obd->obd_dev_lock);
-	/* sync with llog ctxt user thread */
-	spin_unlock(&obd->obd_dev_lock);
-
-	/* obd->obd_starting is needed for the case of cleanup
-	 * in error case while obd is starting up. */
-	LASSERTF(obd->obd_starting == 1 ||
-		 obd->obd_stopping == 1 || obd->obd_set_up == 0,
-		 "wrong obd state: %d/%d/%d\n", !!obd->obd_starting,
-		 !!obd->obd_stopping, !!obd->obd_set_up);
-
-	/* cleanup the llog ctxt here */
-	if (CTXTP(ctxt, cleanup))
-		rc = CTXTP(ctxt, cleanup)(env, ctxt);
-
-	llog_ctxt_destroy(ctxt);
-	wake_up(&olg->olg_waitq);
-	return rc;
-}
-EXPORT_SYMBOL(__llog_ctxt_put);
-
-int llog_cleanup(const struct lu_env *env, struct llog_ctxt *ctxt)
-{
-	struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
-	struct obd_llog_group *olg;
-	int rc, idx;
-
-	LASSERT(ctxt != NULL);
-	LASSERT(ctxt != LP_POISON);
-
-	olg = ctxt->loc_olg;
-	LASSERT(olg != NULL);
-	LASSERT(olg != LP_POISON);
-
-	idx = ctxt->loc_idx;
-
-	/*
-	 * Banlance the ctxt get when calling llog_cleanup()
-	 */
-	LASSERT(atomic_read(&ctxt->loc_refcount) < LI_POISON);
-	LASSERT(atomic_read(&ctxt->loc_refcount) > 1);
-	llog_ctxt_put(ctxt);
-
-	/*
-	 * Try to free the ctxt.
-	 */
-	rc = __llog_ctxt_put(env, ctxt);
-	if (rc)
-		CERROR("Error %d while cleaning up ctxt %p\n",
-		       rc, ctxt);
-
-	l_wait_event(olg->olg_waitq,
-		     llog_group_ctxt_null(olg, idx), &lwi);
-
-	return rc;
-}
-EXPORT_SYMBOL(llog_cleanup);
-
-int llog_setup(const struct lu_env *env, struct obd_device *obd,
-	       struct obd_llog_group *olg, int index,
-	       struct obd_device *disk_obd, struct llog_operations *op)
-{
-	struct llog_ctxt *ctxt;
-	int rc = 0;
-
-	if (index < 0 || index >= LLOG_MAX_CTXTS)
-		return -EINVAL;
-
-	LASSERT(olg != NULL);
-
-	ctxt = llog_new_ctxt(obd);
-	if (!ctxt)
-		return -ENOMEM;
-
-	ctxt->loc_obd = obd;
-	ctxt->loc_olg = olg;
-	ctxt->loc_idx = index;
-	ctxt->loc_logops = op;
-	mutex_init(&ctxt->loc_mutex);
-	ctxt->loc_exp = class_export_get(disk_obd->obd_self_export);
-	ctxt->loc_flags = LLOG_CTXT_FLAG_UNINITIALIZED;
-
-	rc = llog_group_set_ctxt(olg, ctxt, index);
-	if (rc) {
-		llog_ctxt_destroy(ctxt);
-		if (rc == -EEXIST) {
-			ctxt = llog_group_get_ctxt(olg, index);
-			if (ctxt) {
-				/*
-				 * mds_lov_update_desc() might call here multiple
-				 * times. So if the llog is already set up then
-				 * don't to do it again.
-				 */
-				CDEBUG(D_CONFIG, "obd %s ctxt %d already set up\n",
-				       obd->obd_name, index);
-				LASSERT(ctxt->loc_olg == olg);
-				LASSERT(ctxt->loc_obd == obd);
-				LASSERT(ctxt->loc_exp == disk_obd->obd_self_export);
-				LASSERT(ctxt->loc_logops == op);
-				llog_ctxt_put(ctxt);
-			}
-			rc = 0;
-		}
-		return rc;
-	}
-
-	if (op->lop_setup) {
-		if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LLOG_SETUP))
-			rc = -EOPNOTSUPP;
-		else
-			rc = op->lop_setup(env, obd, olg, index, disk_obd);
-	}
-
-	if (rc) {
-		CERROR("%s: ctxt %d lop_setup=%p failed: rc = %d\n",
-		       obd->obd_name, index, op->lop_setup, rc);
-		llog_group_clear_ctxt(olg, index);
-		llog_ctxt_destroy(ctxt);
-	} else {
-		CDEBUG(D_CONFIG, "obd %s ctxt %d is initialized\n",
-		       obd->obd_name, index);
-		ctxt->loc_flags &= ~LLOG_CTXT_FLAG_UNINITIALIZED;
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(llog_setup);
-
-int llog_sync(struct llog_ctxt *ctxt, struct obd_export *exp, int flags)
-{
-	int rc = 0;
-
-	if (!ctxt)
-		return 0;
-
-	if (CTXTP(ctxt, sync))
-		rc = CTXTP(ctxt, sync)(ctxt, exp, flags);
-
-	return rc;
-}
-EXPORT_SYMBOL(llog_sync);
-
-int llog_cancel(const struct lu_env *env, struct llog_ctxt *ctxt,
-		struct llog_cookie *cookies, int flags)
-{
-	int rc;
-
-	if (!ctxt) {
-		CERROR("No ctxt\n");
-		return -ENODEV;
-	}
-
-	CTXT_CHECK_OP(ctxt, cancel, -EOPNOTSUPP);
-	rc = CTXTP(ctxt, cancel)(env, ctxt, cookies, flags);
-	return rc;
-}
-EXPORT_SYMBOL(llog_cancel);
-
-/* context key constructor/destructor: llog_key_init, llog_key_fini */
-LU_KEY_INIT_FINI(llog, struct llog_thread_info);
-/* context key: llog_thread_key */
-LU_CONTEXT_KEY_DEFINE(llog, LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL);
-LU_KEY_INIT_GENERIC(llog);
-EXPORT_SYMBOL(llog_thread_key);
-
-int llog_info_init(void)
-{
-	llog_key_init_generic(&llog_thread_key, NULL);
-	lu_context_key_register(&llog_thread_key);
-	return 0;
-}
-
-void llog_info_fini(void)
-{
-	lu_context_key_degister(&llog_thread_key);
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
deleted file mode 100644
index a2d5aa105d6b..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/llog_swab.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/llog_swab.c
- *
- * Swabbing of llog datatypes (from disk or over the wire).
- *
- * Author: jacob berkman  <jacob@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_LOG
-
-
-#include "../include/lustre_log.h"
-
-static void print_llogd_body(struct llogd_body *d)
-{
-	CDEBUG(D_OTHER, "llogd body: %p\n", d);
-	CDEBUG(D_OTHER, "\tlgd_logid.lgl_oi: "DOSTID"\n",
-	       POSTID(&d->lgd_logid.lgl_oi));
-	CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen);
-	CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx);
-	CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags);
-	CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index);
-	CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index);
-	CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len);
-	CDEBUG(D_OTHER, "\tlgd_cur_offset: %#llx\n", d->lgd_cur_offset);
-}
-
-void lustre_swab_lu_fid(struct lu_fid *fid)
-{
-	__swab64s(&fid->f_seq);
-	__swab32s(&fid->f_oid);
-	__swab32s(&fid->f_ver);
-}
-EXPORT_SYMBOL(lustre_swab_lu_fid);
-
-void lustre_swab_ost_id(struct ost_id *oid)
-{
-	if (fid_seq_is_mdt0(oid->oi.oi_seq)) {
-		__swab64s(&oid->oi.oi_id);
-		__swab64s(&oid->oi.oi_seq);
-	} else {
-		lustre_swab_lu_fid(&oid->oi_fid);
-	}
-}
-EXPORT_SYMBOL(lustre_swab_ost_id);
-
-void lustre_swab_llog_id(struct llog_logid *log_id)
-{
-	__swab64s(&log_id->lgl_oi.oi.oi_id);
-	__swab64s(&log_id->lgl_oi.oi.oi_seq);
-	__swab32s(&log_id->lgl_ogen);
-}
-EXPORT_SYMBOL(lustre_swab_llog_id);
-
-void lustre_swab_llogd_body(struct llogd_body *d)
-{
-	print_llogd_body(d);
-	lustre_swab_llog_id(&d->lgd_logid);
-	__swab32s(&d->lgd_ctxt_idx);
-	__swab32s(&d->lgd_llh_flags);
-	__swab32s(&d->lgd_index);
-	__swab32s(&d->lgd_saved_index);
-	__swab32s(&d->lgd_len);
-	__swab64s(&d->lgd_cur_offset);
-	print_llogd_body(d);
-}
-EXPORT_SYMBOL(lustre_swab_llogd_body);
-
-void lustre_swab_llogd_conn_body(struct llogd_conn_body *d)
-{
-	__swab64s(&d->lgdc_gen.mnt_cnt);
-	__swab64s(&d->lgdc_gen.conn_cnt);
-	lustre_swab_llog_id(&d->lgdc_logid);
-	__swab32s(&d->lgdc_ctxt_idx);
-}
-EXPORT_SYMBOL(lustre_swab_llogd_conn_body);
-
-void lustre_swab_ll_fid(struct ll_fid *fid)
-{
-	__swab64s(&fid->id);
-	__swab32s(&fid->generation);
-	__swab32s(&fid->f_type);
-}
-EXPORT_SYMBOL(lustre_swab_ll_fid);
-
-void lustre_swab_lu_seq_range(struct lu_seq_range *range)
-{
-	__swab64s(&range->lsr_start);
-	__swab64s(&range->lsr_end);
-	__swab32s(&range->lsr_index);
-	__swab32s(&range->lsr_flags);
-}
-EXPORT_SYMBOL(lustre_swab_lu_seq_range);
-
-void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
-{
-	struct llog_rec_tail *tail = NULL;
-
-	__swab32s(&rec->lrh_len);
-	__swab32s(&rec->lrh_index);
-	__swab32s(&rec->lrh_type);
-	__swab32s(&rec->lrh_id);
-
-	switch (rec->lrh_type) {
-	case OST_SZ_REC:
-	{
-		struct llog_size_change_rec *lsc =
-			(struct llog_size_change_rec *)rec;
-
-		lustre_swab_ll_fid(&lsc->lsc_fid);
-		__swab32s(&lsc->lsc_ioepoch);
-		tail = &lsc->lsc_tail;
-		break;
-	}
-	case MDS_UNLINK_REC:
-	{
-		struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
-
-		__swab64s(&lur->lur_oid);
-		__swab32s(&lur->lur_oseq);
-		__swab32s(&lur->lur_count);
-		tail = &lur->lur_tail;
-		break;
-	}
-	case MDS_UNLINK64_REC:
-	{
-		struct llog_unlink64_rec *lur =
-			(struct llog_unlink64_rec *)rec;
-
-		lustre_swab_lu_fid(&lur->lur_fid);
-		__swab32s(&lur->lur_count);
-		tail = &lur->lur_tail;
-		break;
-	}
-	case CHANGELOG_REC:
-	{
-		struct llog_changelog_rec *cr =
-			(struct llog_changelog_rec *)rec;
-
-		__swab16s(&cr->cr.cr_namelen);
-		__swab16s(&cr->cr.cr_flags);
-		__swab32s(&cr->cr.cr_type);
-		__swab64s(&cr->cr.cr_index);
-		__swab64s(&cr->cr.cr_prev);
-		__swab64s(&cr->cr.cr_time);
-		lustre_swab_lu_fid(&cr->cr.cr_tfid);
-		lustre_swab_lu_fid(&cr->cr.cr_pfid);
-		if (CHANGELOG_REC_EXTENDED(&cr->cr)) {
-			struct llog_changelog_ext_rec *ext =
-				(struct llog_changelog_ext_rec *)rec;
-
-			lustre_swab_lu_fid(&ext->cr.cr_sfid);
-			lustre_swab_lu_fid(&ext->cr.cr_spfid);
-			tail = &ext->cr_tail;
-		} else {
-			tail = &cr->cr_tail;
-		}
-		tail = (struct llog_rec_tail *)((char *)tail +
-						cr->cr.cr_namelen);
-		break;
-	}
-	case CHANGELOG_USER_REC:
-	{
-		struct llog_changelog_user_rec *cur =
-			(struct llog_changelog_user_rec *)rec;
-
-		__swab32s(&cur->cur_id);
-		__swab64s(&cur->cur_endrec);
-		tail = &cur->cur_tail;
-		break;
-	}
-
-	case HSM_AGENT_REC: {
-		struct llog_agent_req_rec *arr =
-			(struct llog_agent_req_rec *)rec;
-
-		__swab32s(&arr->arr_hai.hai_len);
-		__swab32s(&arr->arr_hai.hai_action);
-		lustre_swab_lu_fid(&arr->arr_hai.hai_fid);
-		lustre_swab_lu_fid(&arr->arr_hai.hai_dfid);
-		__swab64s(&arr->arr_hai.hai_cookie);
-		__swab64s(&arr->arr_hai.hai_extent.offset);
-		__swab64s(&arr->arr_hai.hai_extent.length);
-		__swab64s(&arr->arr_hai.hai_gid);
-		/* no swabing for opaque data */
-		/* hai_data[0]; */
-		break;
-	}
-
-	case MDS_SETATTR64_REC:
-	{
-		struct llog_setattr64_rec *lsr =
-			(struct llog_setattr64_rec *)rec;
-
-		lustre_swab_ost_id(&lsr->lsr_oi);
-		__swab32s(&lsr->lsr_uid);
-		__swab32s(&lsr->lsr_uid_h);
-		__swab32s(&lsr->lsr_gid);
-		__swab32s(&lsr->lsr_gid_h);
-		tail = &lsr->lsr_tail;
-		break;
-	}
-	case OBD_CFG_REC:
-		/* these are swabbed as they are consumed */
-		break;
-	case LLOG_HDR_MAGIC:
-	{
-		struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
-
-		__swab64s(&llh->llh_timestamp);
-		__swab32s(&llh->llh_count);
-		__swab32s(&llh->llh_bitmap_offset);
-		__swab32s(&llh->llh_flags);
-		__swab32s(&llh->llh_size);
-		__swab32s(&llh->llh_cat_idx);
-		tail = &llh->llh_tail;
-		break;
-	}
-	case LLOG_LOGID_MAGIC:
-	{
-		struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
-
-		lustre_swab_llog_id(&lid->lid_id);
-		tail = &lid->lid_tail;
-		break;
-	}
-	case LLOG_GEN_REC:
-	{
-		struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
-
-		__swab64s(&lgr->lgr_gen.mnt_cnt);
-		__swab64s(&lgr->lgr_gen.conn_cnt);
-		tail = &lgr->lgr_tail;
-		break;
-	}
-	case LLOG_PAD_MAGIC:
-		break;
-	default:
-		CERROR("Unknown llog rec type %#x swabbing rec %p\n",
-		       rec->lrh_type, rec);
-	}
-
-	if (tail) {
-		__swab32s(&tail->lrt_len);
-		__swab32s(&tail->lrt_index);
-	}
-}
-EXPORT_SYMBOL(lustre_swab_llog_rec);
-
-static void print_llog_hdr(struct llog_log_hdr *h)
-{
-	CDEBUG(D_OTHER, "llog header: %p\n", h);
-	CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index);
-	CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len);
-	CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type);
-	CDEBUG(D_OTHER, "\tllh_timestamp: %#llx\n", h->llh_timestamp);
-	CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count);
-	CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset);
-	CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags);
-	CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size);
-	CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx);
-	CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n", h->llh_tail.lrt_index);
-	CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", h->llh_tail.lrt_len);
-}
-
-void lustre_swab_llog_hdr(struct llog_log_hdr *h)
-{
-	print_llog_hdr(h);
-
-	lustre_swab_llog_rec(&h->llh_hdr);
-
-	print_llog_hdr(h);
-}
-EXPORT_SYMBOL(lustre_swab_llog_hdr);
-
-static void print_lustre_cfg(struct lustre_cfg *lcfg)
-{
-	int i;
-
-	if (!(libcfs_debug & D_OTHER)) /* don't loop on nothing */
-		return;
-	CDEBUG(D_OTHER, "lustre_cfg: %p\n", lcfg);
-	CDEBUG(D_OTHER, "\tlcfg->lcfg_version: %#x\n", lcfg->lcfg_version);
-
-	CDEBUG(D_OTHER, "\tlcfg->lcfg_command: %#x\n", lcfg->lcfg_command);
-	CDEBUG(D_OTHER, "\tlcfg->lcfg_num: %#x\n", lcfg->lcfg_num);
-	CDEBUG(D_OTHER, "\tlcfg->lcfg_flags: %#x\n", lcfg->lcfg_flags);
-	CDEBUG(D_OTHER, "\tlcfg->lcfg_nid: %s\n", libcfs_nid2str(lcfg->lcfg_nid));
-
-	CDEBUG(D_OTHER, "\tlcfg->lcfg_bufcount: %d\n", lcfg->lcfg_bufcount);
-	if (lcfg->lcfg_bufcount < LUSTRE_CFG_MAX_BUFCOUNT)
-		for (i = 0; i < lcfg->lcfg_bufcount; i++)
-			CDEBUG(D_OTHER, "\tlcfg->lcfg_buflens[%d]: %d\n",
-			       i, lcfg->lcfg_buflens[i]);
-}
-
-void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg)
-{
-	int i;
-
-	__swab32s(&lcfg->lcfg_version);
-
-	if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) {
-		CERROR("not swabbing lustre_cfg version %#x (expecting %#x)\n",
-		       lcfg->lcfg_version, LUSTRE_CFG_VERSION);
-		return;
-	}
-
-	__swab32s(&lcfg->lcfg_command);
-	__swab32s(&lcfg->lcfg_num);
-	__swab32s(&lcfg->lcfg_flags);
-	__swab64s(&lcfg->lcfg_nid);
-	__swab32s(&lcfg->lcfg_bufcount);
-	for (i = 0; i < lcfg->lcfg_bufcount && i < LUSTRE_CFG_MAX_BUFCOUNT; i++)
-		__swab32s(&lcfg->lcfg_buflens[i]);
-
-	print_lustre_cfg(lcfg);
-	return;
-}
-EXPORT_SYMBOL(lustre_swab_lustre_cfg);
-
-/* used only for compatibility with old on-disk cfg_marker data */
-struct cfg_marker32 {
-	__u32   cm_step;
-	__u32   cm_flags;
-	__u32   cm_vers;
-	__u32   padding;
-	__u32   cm_createtime;
-	__u32   cm_canceltime;
-	char    cm_tgtname[MTI_NAME_MAXLEN];
-	char    cm_comment[MTI_NAME_MAXLEN];
-};
-
-#define MTI_NAMELEN32    (MTI_NAME_MAXLEN - \
-	(sizeof(struct cfg_marker) - sizeof(struct cfg_marker32)))
-
-void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size)
-{
-	struct cfg_marker32 *cm32 = (struct cfg_marker32 *)marker;
-
-	if (swab) {
-		__swab32s(&marker->cm_step);
-		__swab32s(&marker->cm_flags);
-		__swab32s(&marker->cm_vers);
-	}
-	if (size == sizeof(*cm32)) {
-		__u32 createtime, canceltime;
-		/* There was a problem with the original declaration of
-		 * cfg_marker on 32-bit systems because it used time_t as
-		 * a wire protocol structure, and didn't verify this in
-		 * wirecheck.  We now have to convert the offsets of the
-		 * later fields in order to work on 32- and 64-bit systems.
-		 *
-		 * Fortunately, the cm_comment field has no functional use
-		 * so can be sacrificed when converting the timestamp size.
-		 *
-		 * Overwrite fields from the end first, so they are not
-		 * clobbered, and use memmove() instead of memcpy() because
-		 * the source and target buffers overlap.  bug 16771 */
-		createtime = cm32->cm_createtime;
-		canceltime = cm32->cm_canceltime;
-		memmove(marker->cm_comment, cm32->cm_comment, MTI_NAMELEN32);
-		marker->cm_comment[MTI_NAMELEN32 - 1] = '\0';
-		memmove(marker->cm_tgtname, cm32->cm_tgtname,
-			sizeof(marker->cm_tgtname));
-		if (swab) {
-			__swab32s(&createtime);
-			__swab32s(&canceltime);
-		}
-		marker->cm_createtime = createtime;
-		marker->cm_canceltime = canceltime;
-		CDEBUG(D_CONFIG, "Find old cfg_marker(Srv32b,Clt64b) for target %s, converting\n",
-		       marker->cm_tgtname);
-	} else if (swab) {
-		__swab64s(&marker->cm_createtime);
-		__swab64s(&marker->cm_canceltime);
-	}
-
-	return;
-}
-EXPORT_SYMBOL(lustre_swab_cfg_marker);
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
deleted file mode 100644
index c49dfe541925..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- *
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2013, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/lprocfs_counters.c
- *
- * Lustre lprocfs counter routines
- *
- * Author: Andreas Dilger <andreas.dilger@intel.com>
- */
-
-#include <linux/module.h>
-#include "../include/lprocfs_status.h"
-#include "../include/obd_support.h"
-
-struct lprocfs_stats *obd_memory = NULL;
-EXPORT_SYMBOL(obd_memory);
-
-void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount)
-{
-	struct lprocfs_counter		*percpu_cntr;
-	struct lprocfs_counter_header	*header;
-	int				smp_id;
-	unsigned long			flags = 0;
-
-	if (stats == NULL)
-		return;
-
-	LASSERTF(0 <= idx && idx < stats->ls_num,
-		 "idx %d, ls_num %hu\n", idx, stats->ls_num);
-
-	/* With per-client stats, statistics are allocated only for
-	 * single CPU area, so the smp_id should be 0 always. */
-	smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
-	if (smp_id < 0)
-		return;
-
-	header = &stats->ls_cnt_header[idx];
-	percpu_cntr = lprocfs_stats_counter_get(stats, smp_id, idx);
-	percpu_cntr->lc_count++;
-
-	if (header->lc_config & LPROCFS_CNTR_AVGMINMAX) {
-		/*
-		 * lprocfs_counter_add() can be called in interrupt context,
-		 * as memory allocation could trigger memory shrinker call
-		 * ldlm_pool_shrink(), which calls lprocfs_counter_add().
-		 * LU-1727.
-		 *
-		 * Only obd_memory uses LPROCFS_STATS_FLAG_IRQ_SAFE
-		 * flag, because it needs accurate counting lest memory leak
-		 * check reports error.
-		 */
-		if (in_interrupt() &&
-		    (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
-			percpu_cntr->lc_sum_irq += amount;
-		else
-			percpu_cntr->lc_sum += amount;
-
-		if (header->lc_config & LPROCFS_CNTR_STDDEV)
-			percpu_cntr->lc_sumsquare += (__s64)amount * amount;
-		if (amount < percpu_cntr->lc_min)
-			percpu_cntr->lc_min = amount;
-		if (amount > percpu_cntr->lc_max)
-			percpu_cntr->lc_max = amount;
-	}
-	lprocfs_stats_unlock(stats, LPROCFS_GET_SMP_ID, &flags);
-}
-EXPORT_SYMBOL(lprocfs_counter_add);
-
-void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount)
-{
-	struct lprocfs_counter		*percpu_cntr;
-	struct lprocfs_counter_header	*header;
-	int				smp_id;
-	unsigned long			flags = 0;
-
-	if (stats == NULL)
-		return;
-
-	LASSERTF(0 <= idx && idx < stats->ls_num,
-		 "idx %d, ls_num %hu\n", idx, stats->ls_num);
-
-	/* With per-client stats, statistics are allocated only for
-	 * single CPU area, so the smp_id should be 0 always. */
-	smp_id = lprocfs_stats_lock(stats, LPROCFS_GET_SMP_ID, &flags);
-	if (smp_id < 0)
-		return;
-
-	header = &stats->ls_cnt_header[idx];
-	percpu_cntr = lprocfs_stats_counter_get(stats, smp_id, idx);
-	if (header->lc_config & LPROCFS_CNTR_AVGMINMAX) {
-		/*
-		 * Sometimes we use RCU callbacks to free memory which calls
-		 * lprocfs_counter_sub(), and RCU callbacks may execute in
-		 * softirq context - right now that's the only case we're in
-		 * softirq context here, use separate counter for that.
-		 * bz20650.
-		 *
-		 * Only obd_memory uses LPROCFS_STATS_FLAG_IRQ_SAFE
-		 * flag, because it needs accurate counting lest memory leak
-		 * check reports error.
-		 */
-		if (in_interrupt() &&
-		    (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
-			percpu_cntr->lc_sum_irq -= amount;
-		else
-			percpu_cntr->lc_sum -= amount;
-	}
-	lprocfs_stats_unlock(stats, LPROCFS_GET_SMP_ID, &flags);
-}
-EXPORT_SYMBOL(lprocfs_counter_sub);
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
deleted file mode 100644
index 08d1f0edf98d..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ /dev/null
@@ -1,1826 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/lprocfs_status.c
- *
- * Author: Hariharan Thantry <thantry@users.sourceforge.net>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre/lustre_idl.h"
-#include <linux/seq_file.h>
-#include <linux/ctype.h>
-
-static const char * const obd_connect_names[] = {
-	"read_only",
-	"lov_index",
-	"unused",
-	"write_grant",
-	"server_lock",
-	"version",
-	"request_portal",
-	"acl",
-	"xattr",
-	"create_on_write",
-	"truncate_lock",
-	"initial_transno",
-	"inode_bit_locks",
-	"join_file(obsolete)",
-	"getattr_by_fid",
-	"no_oh_for_devices",
-	"remote_client",
-	"remote_client_by_force",
-	"max_byte_per_rpc",
-	"64bit_qdata",
-	"mds_capability",
-	"oss_capability",
-	"early_lock_cancel",
-	"som",
-	"adaptive_timeouts",
-	"lru_resize",
-	"mds_mds_connection",
-	"real_conn",
-	"change_qunit_size",
-	"alt_checksum_algorithm",
-	"fid_is_enabled",
-	"version_recovery",
-	"pools",
-	"grant_shrink",
-	"skip_orphan",
-	"large_ea",
-	"full20",
-	"layout_lock",
-	"64bithash",
-	"object_max_bytes",
-	"imp_recov",
-	"jobstats",
-	"umask",
-	"einprogress",
-	"grant_param",
-	"flock_owner",
-	"lvb_type",
-	"nanoseconds_times",
-	"lightweight_conn",
-	"short_io",
-	"pingless",
-	"flock_deadlock",
-	"disp_stripe",
-	"unknown",
-	NULL
-};
-
-int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep)
-{
-	__u64 mask = 1;
-	int i, ret = 0;
-
-	for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
-		if (flags & mask)
-			ret += snprintf(page + ret, count - ret, "%s%s",
-					ret ? sep : "", obd_connect_names[i]);
-	}
-	if (flags & ~(mask - 1))
-		ret += snprintf(page + ret, count - ret,
-				"%sunknown flags %#llx",
-				ret ? sep : "", flags & ~(mask - 1));
-	return ret;
-}
-EXPORT_SYMBOL(obd_connect_flags2str);
-
-int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val,
-			     int mult)
-{
-	long decimal_val, frac_val;
-	int prtn;
-
-	if (count < 10)
-		return -EINVAL;
-
-	decimal_val = val / mult;
-	prtn = snprintf(buffer, count, "%ld", decimal_val);
-	frac_val = val % mult;
-
-	if (prtn < (count - 4) && frac_val > 0) {
-		long temp_frac;
-		int i, temp_mult = 1, frac_bits = 0;
-
-		temp_frac = frac_val * 10;
-		buffer[prtn++] = '.';
-		while (frac_bits < 2 && (temp_frac / mult) < 1) {
-			/* only reserved 2 bits fraction */
-			buffer[prtn++] = '0';
-			temp_frac *= 10;
-			frac_bits++;
-		}
-		/*
-		 * Need to think these cases :
-		 *      1. #echo x.00 > /proc/xxx       output result : x
-		 *      2. #echo x.0x > /proc/xxx       output result : x.0x
-		 *      3. #echo x.x0 > /proc/xxx       output result : x.x
-		 *      4. #echo x.xx > /proc/xxx       output result : x.xx
-		 *      Only reserved 2 bits fraction.
-		 */
-		for (i = 0; i < (5 - prtn); i++)
-			temp_mult *= 10;
-
-		frac_bits = min((int)count - prtn, 3 - frac_bits);
-		prtn += snprintf(buffer + prtn, frac_bits, "%ld",
-				 frac_val * temp_mult / mult);
-
-		prtn--;
-		while (buffer[prtn] < '1' || buffer[prtn] > '9') {
-			prtn--;
-			if (buffer[prtn] == '.') {
-				prtn--;
-				break;
-			}
-		}
-		prtn++;
-	}
-	buffer[prtn++] = '\n';
-	return prtn;
-}
-EXPORT_SYMBOL(lprocfs_read_frac_helper);
-
-int lprocfs_write_frac_helper(const char __user *buffer, unsigned long count,
-			      int *val, int mult)
-{
-	char kernbuf[20], *end, *pbuf;
-
-	if (count > (sizeof(kernbuf) - 1))
-		return -EINVAL;
-
-	if (copy_from_user(kernbuf, buffer, count))
-		return -EFAULT;
-
-	kernbuf[count] = '\0';
-	pbuf = kernbuf;
-	if (*pbuf == '-') {
-		mult = -mult;
-		pbuf++;
-	}
-
-	*val = (int)simple_strtoul(pbuf, &end, 10) * mult;
-	if (pbuf == end)
-		return -EINVAL;
-
-	if (end != NULL && *end == '.') {
-		int temp_val, pow = 1;
-		int i;
-
-		pbuf = end + 1;
-		if (strlen(pbuf) > 5)
-			pbuf[5] = '\0'; /*only allow 5bits fractional*/
-
-		temp_val = (int)simple_strtoul(pbuf, &end, 10) * mult;
-
-		if (pbuf < end) {
-			for (i = 0; i < (end - pbuf); i++)
-				pow *= 10;
-
-			*val += temp_val / pow;
-		}
-	}
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_write_frac_helper);
-
-static int lprocfs_no_percpu_stats;
-module_param(lprocfs_no_percpu_stats, int, 0644);
-MODULE_PARM_DESC(lprocfs_no_percpu_stats, "Do not alloc percpu data for lprocfs stats");
-
-#define MAX_STRING_SIZE 128
-
-int lprocfs_single_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-EXPORT_SYMBOL(lprocfs_single_release);
-
-int lprocfs_seq_release(struct inode *inode, struct file *file)
-{
-	return seq_release(inode, file);
-}
-EXPORT_SYMBOL(lprocfs_seq_release);
-
-/* lprocfs API calls */
-
-struct dentry *ldebugfs_add_simple(struct dentry *root,
-				   char *name, void *data,
-				   struct file_operations *fops)
-{
-	struct dentry *entry;
-	umode_t mode = 0;
-
-	if (root == NULL || name == NULL || fops == NULL)
-		return ERR_PTR(-EINVAL);
-
-	if (fops->read)
-		mode = 0444;
-	if (fops->write)
-		mode |= 0200;
-	entry = debugfs_create_file(name, mode, root, data, fops);
-	if (IS_ERR_OR_NULL(entry)) {
-		CERROR("LprocFS: No memory to create <debugfs> entry %s", name);
-		return entry ?: ERR_PTR(-ENOMEM);
-	}
-	return entry;
-}
-EXPORT_SYMBOL(ldebugfs_add_simple);
-
-struct dentry *ldebugfs_add_symlink(const char *name, struct dentry *parent,
-				    const char *format, ...)
-{
-	struct dentry *entry;
-	char *dest;
-	va_list ap;
-
-	if (parent == NULL || format == NULL)
-		return NULL;
-
-	dest = kzalloc(MAX_STRING_SIZE + 1, GFP_KERNEL);
-	if (!dest)
-		return NULL;
-
-	va_start(ap, format);
-	vsnprintf(dest, MAX_STRING_SIZE, format, ap);
-	va_end(ap);
-
-	entry = debugfs_create_symlink(name, parent, dest);
-	if (IS_ERR_OR_NULL(entry)) {
-		CERROR("LdebugFS: Could not create symbolic link from %s to %s",
-			name, dest);
-		entry = NULL;
-	}
-
-	kfree(dest);
-	return entry;
-}
-EXPORT_SYMBOL(ldebugfs_add_symlink);
-
-static struct file_operations lprocfs_generic_fops = { };
-
-int ldebugfs_add_vars(struct dentry *parent,
-		      struct lprocfs_vars *list,
-		      void *data)
-{
-	if (IS_ERR_OR_NULL(parent) || IS_ERR_OR_NULL(list))
-		return -EINVAL;
-
-	while (list->name != NULL) {
-		struct dentry *entry;
-		umode_t mode = 0;
-
-		if (list->proc_mode != 0000) {
-			mode = list->proc_mode;
-		} else if (list->fops) {
-			if (list->fops->read)
-				mode = 0444;
-			if (list->fops->write)
-				mode |= 0200;
-		}
-		entry = debugfs_create_file(list->name, mode, parent,
-					    list->data ?: data,
-					    list->fops ?: &lprocfs_generic_fops
-					   );
-		if (IS_ERR_OR_NULL(entry))
-			return entry ? PTR_ERR(entry) : -ENOMEM;
-		list++;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(ldebugfs_add_vars);
-
-void ldebugfs_remove(struct dentry **entryp)
-{
-	debugfs_remove_recursive(*entryp);
-	*entryp = NULL;
-}
-EXPORT_SYMBOL(ldebugfs_remove);
-
-struct dentry *ldebugfs_register(const char *name,
-				 struct dentry *parent,
-				 struct lprocfs_vars *list, void *data)
-{
-	struct dentry *entry;
-
-	entry = debugfs_create_dir(name, parent);
-	if (IS_ERR_OR_NULL(entry)) {
-		entry = entry ?: ERR_PTR(-ENOMEM);
-		goto out;
-	}
-
-	if (!IS_ERR_OR_NULL(list)) {
-		int rc;
-
-		rc = ldebugfs_add_vars(entry, list, data);
-		if (rc != 0) {
-			debugfs_remove(entry);
-			entry = ERR_PTR(rc);
-		}
-	}
-out:
-	return entry;
-}
-EXPORT_SYMBOL(ldebugfs_register);
-
-/* Generic callbacks */
-int lprocfs_rd_uint(struct seq_file *m, void *data)
-{
-	seq_printf(m, "%u\n", *(unsigned int *)data);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_uint);
-
-int lprocfs_wr_uint(struct file *file, const char __user *buffer,
-		    unsigned long count, void *data)
-{
-	unsigned *p = data;
-	char dummy[MAX_STRING_SIZE + 1], *end;
-	unsigned long tmp;
-
-	dummy[MAX_STRING_SIZE] = '\0';
-	if (copy_from_user(dummy, buffer, MAX_STRING_SIZE))
-		return -EFAULT;
-
-	tmp = simple_strtoul(dummy, &end, 0);
-	if (dummy == end)
-		return -EINVAL;
-
-	*p = (unsigned int)tmp;
-	return count;
-}
-EXPORT_SYMBOL(lprocfs_wr_uint);
-
-int lprocfs_rd_u64(struct seq_file *m, void *data)
-{
-	seq_printf(m, "%llu\n", *(__u64 *)data);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_u64);
-
-int lprocfs_rd_atomic(struct seq_file *m, void *data)
-{
-	atomic_t *atom = data;
-	LASSERT(atom != NULL);
-	seq_printf(m, "%d\n", atomic_read(atom));
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_atomic);
-
-int lprocfs_wr_atomic(struct file *file, const char __user *buffer,
-		      unsigned long count, void *data)
-{
-	atomic_t *atm = data;
-	int val = 0;
-	int rc;
-
-	rc = lprocfs_write_helper(buffer, count, &val);
-	if (rc < 0)
-		return rc;
-
-	if (val <= 0)
-		return -ERANGE;
-
-	atomic_set(atm, val);
-	return count;
-}
-EXPORT_SYMBOL(lprocfs_wr_atomic);
-
-static ssize_t uuid_show(struct kobject *kobj, struct attribute *attr,
-			 char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-
-	return sprintf(buf, "%s\n", obd->obd_uuid.uuid);
-}
-LUSTRE_RO_ATTR(uuid);
-
-int lprocfs_rd_name(struct seq_file *m, void *data)
-{
-	struct obd_device *dev = data;
-
-	LASSERT(dev != NULL);
-	seq_printf(m, "%s\n", dev->obd_name);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_name);
-
-static ssize_t blocksize_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct obd_statfs  osfs;
-	int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
-			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-			    OBD_STATFS_NODELAY);
-	if (!rc)
-		return sprintf(buf, "%u\n", osfs.os_bsize);
-
-	return rc;
-}
-LUSTRE_RO_ATTR(blocksize);
-
-static ssize_t kbytestotal_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct obd_statfs  osfs;
-	int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
-			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-			    OBD_STATFS_NODELAY);
-	if (!rc) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_blocks;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		return sprintf(buf, "%llu\n", result);
-	}
-
-	return rc;
-}
-LUSTRE_RO_ATTR(kbytestotal);
-
-static ssize_t kbytesfree_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct obd_statfs  osfs;
-	int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
-			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-			    OBD_STATFS_NODELAY);
-	if (!rc) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_bfree;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		return sprintf(buf, "%llu\n", result);
-	}
-
-	return rc;
-}
-LUSTRE_RO_ATTR(kbytesfree);
-
-static ssize_t kbytesavail_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct obd_statfs  osfs;
-	int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
-			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-			    OBD_STATFS_NODELAY);
-	if (!rc) {
-		__u32 blk_size = osfs.os_bsize >> 10;
-		__u64 result = osfs.os_bavail;
-
-		while (blk_size >>= 1)
-			result <<= 1;
-
-		return sprintf(buf, "%llu\n", result);
-	}
-
-	return rc;
-}
-LUSTRE_RO_ATTR(kbytesavail);
-
-static ssize_t filestotal_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct obd_statfs  osfs;
-	int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
-			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-			    OBD_STATFS_NODELAY);
-	if (!rc)
-		return sprintf(buf, "%llu\n", osfs.os_files);
-
-	return rc;
-}
-LUSTRE_RO_ATTR(filestotal);
-
-static ssize_t filesfree_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct obd_statfs  osfs;
-	int rc = obd_statfs(NULL, obd->obd_self_export, &osfs,
-			    cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
-			    OBD_STATFS_NODELAY);
-	if (!rc)
-		return sprintf(buf, "%llu\n", osfs.os_ffree);
-
-	return rc;
-}
-LUSTRE_RO_ATTR(filesfree);
-
-int lprocfs_rd_server_uuid(struct seq_file *m, void *data)
-{
-	struct obd_device *obd = data;
-	struct obd_import *imp;
-	char *imp_state_name = NULL;
-
-	LASSERT(obd != NULL);
-	LPROCFS_CLIMP_CHECK(obd);
-	imp = obd->u.cli.cl_import;
-	imp_state_name = ptlrpc_import_state_name(imp->imp_state);
-	seq_printf(m, "%s\t%s%s\n",
-		   obd2cli_tgt(obd), imp_state_name,
-		   imp->imp_deactive ? "\tDEACTIVATED" : "");
-
-	LPROCFS_CLIMP_EXIT(obd);
-
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_server_uuid);
-
-int lprocfs_rd_conn_uuid(struct seq_file *m, void *data)
-{
-	struct obd_device *obd = data;
-	struct ptlrpc_connection *conn;
-
-	LASSERT(obd != NULL);
-
-	LPROCFS_CLIMP_CHECK(obd);
-	conn = obd->u.cli.cl_import->imp_connection;
-	if (conn && obd->u.cli.cl_import)
-		seq_printf(m, "%s\n", conn->c_remote_uuid.uuid);
-	else
-		seq_puts(m, "<none>\n");
-
-	LPROCFS_CLIMP_EXIT(obd);
-
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_conn_uuid);
-
-/** add up per-cpu counters */
-void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx,
-			   struct lprocfs_counter *cnt)
-{
-	unsigned int			num_entry;
-	struct lprocfs_counter		*percpu_cntr;
-	int				i;
-	unsigned long			flags = 0;
-
-	memset(cnt, 0, sizeof(*cnt));
-
-	if (stats == NULL) {
-		/* set count to 1 to avoid divide-by-zero errs in callers */
-		cnt->lc_count = 1;
-		return;
-	}
-
-	cnt->lc_min = LC_MIN_INIT;
-
-	num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
-
-	for (i = 0; i < num_entry; i++) {
-		if (stats->ls_percpu[i] == NULL)
-			continue;
-		percpu_cntr = lprocfs_stats_counter_get(stats, i, idx);
-
-		cnt->lc_count += percpu_cntr->lc_count;
-		cnt->lc_sum += percpu_cntr->lc_sum;
-		if (percpu_cntr->lc_min < cnt->lc_min)
-			cnt->lc_min = percpu_cntr->lc_min;
-		if (percpu_cntr->lc_max > cnt->lc_max)
-			cnt->lc_max = percpu_cntr->lc_max;
-		cnt->lc_sumsquare += percpu_cntr->lc_sumsquare;
-	}
-
-	lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
-}
-EXPORT_SYMBOL(lprocfs_stats_collect);
-
-/**
- * Append a space separated list of current set flags to str.
- */
-#define flag2str(flag, first)						\
-	do {								\
-		if (imp->imp_##flag)					\
-		     seq_printf(m, "%s" #flag, first ? "" : ", ");	\
-	} while (0)
-static int obd_import_flags2str(struct obd_import *imp, struct seq_file *m)
-{
-	bool first = true;
-
-	if (imp->imp_obd->obd_no_recov) {
-		seq_printf(m, "no_recov");
-		first = false;
-	}
-
-	flag2str(invalid, first);
-	first = false;
-	flag2str(deactive, first);
-	flag2str(replayable, first);
-	flag2str(pingable, first);
-	return 0;
-}
-#undef flags2str
-
-static void obd_connect_seq_flags2str(struct seq_file *m, __u64 flags, char *sep)
-{
-	__u64 mask = 1;
-	int i;
-	bool first = true;
-
-	for (i = 0; obd_connect_names[i] != NULL; i++, mask <<= 1) {
-		if (flags & mask) {
-			seq_printf(m, "%s%s",
-					first ? sep : "", obd_connect_names[i]);
-			first = false;
-		}
-	}
-	if (flags & ~(mask - 1))
-		seq_printf(m, "%sunknown flags %#llx",
-				first ? sep : "", flags & ~(mask - 1));
-}
-
-int lprocfs_rd_import(struct seq_file *m, void *data)
-{
-	struct lprocfs_counter		ret;
-	struct lprocfs_counter_header	*header;
-	struct obd_device		*obd	= (struct obd_device *)data;
-	struct obd_import		*imp;
-	struct obd_import_conn		*conn;
-	int				j;
-	int				k;
-	int				rw	= 0;
-
-	LASSERT(obd != NULL);
-	LPROCFS_CLIMP_CHECK(obd);
-	imp = obd->u.cli.cl_import;
-
-	seq_printf(m,
-		     "import:\n"
-		     "    name: %s\n"
-		     "    target: %s\n"
-		     "    state: %s\n"
-		     "    instance: %u\n"
-		     "    connect_flags: [",
-		     obd->obd_name,
-		     obd2cli_tgt(obd),
-		     ptlrpc_import_state_name(imp->imp_state),
-		     imp->imp_connect_data.ocd_instance);
-	obd_connect_seq_flags2str(m, imp->imp_connect_data.ocd_connect_flags, ", ");
-	seq_printf(m,
-		      "]\n"
-		      "    import_flags: [");
-	obd_import_flags2str(imp, m);
-
-	seq_printf(m,
-		      "]\n"
-		      "    connection:\n"
-		      "       failover_nids: [");
-	spin_lock(&imp->imp_lock);
-	j = 0;
-	list_for_each_entry(conn, &imp->imp_conn_list, oic_item) {
-		seq_printf(m, "%s%s", j ? ", " : "",
-			   libcfs_nid2str(conn->oic_conn->c_peer.nid));
-		j++;
-	}
-	seq_printf(m,
-		      "]\n"
-		      "       current_connection: %s\n"
-		      "       connection_attempts: %u\n"
-		      "       generation: %u\n"
-		      "       in-progress_invalidations: %u\n",
-		      imp->imp_connection == NULL ? "<none>" :
-			      libcfs_nid2str(imp->imp_connection->c_peer.nid),
-		      imp->imp_conn_cnt,
-		      imp->imp_generation,
-		      atomic_read(&imp->imp_inval_count));
-	spin_unlock(&imp->imp_lock);
-
-	if (obd->obd_svc_stats == NULL)
-		goto out_climp;
-
-	header = &obd->obd_svc_stats->ls_cnt_header[PTLRPC_REQWAIT_CNTR];
-	lprocfs_stats_collect(obd->obd_svc_stats, PTLRPC_REQWAIT_CNTR, &ret);
-	if (ret.lc_count != 0) {
-		/* first argument to do_div MUST be __u64 */
-		__u64 sum = ret.lc_sum;
-		do_div(sum, ret.lc_count);
-		ret.lc_sum = sum;
-	} else
-		ret.lc_sum = 0;
-	seq_printf(m,
-		      "    rpcs:\n"
-		      "       inflight: %u\n"
-		      "       unregistering: %u\n"
-		      "       timeouts: %u\n"
-		      "       avg_waittime: %llu %s\n",
-		      atomic_read(&imp->imp_inflight),
-		      atomic_read(&imp->imp_unregistering),
-		      atomic_read(&imp->imp_timeouts),
-		      ret.lc_sum, header->lc_units);
-
-	k = 0;
-	for (j = 0; j < IMP_AT_MAX_PORTALS; j++) {
-		if (imp->imp_at.iat_portal[j] == 0)
-			break;
-		k = max_t(unsigned int, k,
-			  at_get(&imp->imp_at.iat_service_estimate[j]));
-	}
-	seq_printf(m,
-		      "    service_estimates:\n"
-		      "       services: %u sec\n"
-		      "       network: %u sec\n",
-		      k,
-		      at_get(&imp->imp_at.iat_net_latency));
-
-	seq_printf(m,
-		      "    transactions:\n"
-		      "       last_replay: %llu\n"
-		      "       peer_committed: %llu\n"
-		      "       last_checked: %llu\n",
-		      imp->imp_last_replay_transno,
-		      imp->imp_peer_committed_transno,
-		      imp->imp_last_transno_checked);
-
-	/* avg data rates */
-	for (rw = 0; rw <= 1; rw++) {
-		lprocfs_stats_collect(obd->obd_svc_stats,
-				      PTLRPC_LAST_CNTR + BRW_READ_BYTES + rw,
-				      &ret);
-		if (ret.lc_sum > 0 && ret.lc_count > 0) {
-			/* first argument to do_div MUST be __u64 */
-			__u64 sum = ret.lc_sum;
-			do_div(sum, ret.lc_count);
-			ret.lc_sum = sum;
-			seq_printf(m,
-				      "    %s_data_averages:\n"
-				      "       bytes_per_rpc: %llu\n",
-				      rw ? "write" : "read",
-				      ret.lc_sum);
-		}
-		k = (int)ret.lc_sum;
-		j = opcode_offset(OST_READ + rw) + EXTRA_MAX_OPCODES;
-		header = &obd->obd_svc_stats->ls_cnt_header[j];
-		lprocfs_stats_collect(obd->obd_svc_stats, j, &ret);
-		if (ret.lc_sum > 0 && ret.lc_count != 0) {
-			/* first argument to do_div MUST be __u64 */
-			__u64 sum = ret.lc_sum;
-			do_div(sum, ret.lc_count);
-			ret.lc_sum = sum;
-			seq_printf(m,
-				      "       %s_per_rpc: %llu\n",
-				      header->lc_units, ret.lc_sum);
-			j = (int)ret.lc_sum;
-			if (j > 0)
-				seq_printf(m,
-					      "       MB_per_sec: %u.%.02u\n",
-					      k / j, (100 * k / j) % 100);
-		}
-	}
-
-out_climp:
-	LPROCFS_CLIMP_EXIT(obd);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_import);
-
-int lprocfs_rd_state(struct seq_file *m, void *data)
-{
-	struct obd_device *obd = (struct obd_device *)data;
-	struct obd_import *imp;
-	int j, k;
-
-	LASSERT(obd != NULL);
-	LPROCFS_CLIMP_CHECK(obd);
-	imp = obd->u.cli.cl_import;
-
-	seq_printf(m, "current_state: %s\n",
-		     ptlrpc_import_state_name(imp->imp_state));
-	seq_printf(m, "state_history:\n");
-	k = imp->imp_state_hist_idx;
-	for (j = 0; j < IMP_STATE_HIST_LEN; j++) {
-		struct import_state_hist *ish =
-			&imp->imp_state_hist[(k + j) % IMP_STATE_HIST_LEN];
-		if (ish->ish_state == 0)
-			continue;
-		seq_printf(m, " - ["CFS_TIME_T", %s]\n",
-			      ish->ish_time,
-			      ptlrpc_import_state_name(ish->ish_state));
-	}
-
-	LPROCFS_CLIMP_EXIT(obd);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_state);
-
-int lprocfs_at_hist_helper(struct seq_file *m, struct adaptive_timeout *at)
-{
-	int i;
-	for (i = 0; i < AT_BINS; i++)
-		seq_printf(m, "%3u ", at->at_hist[i]);
-	seq_printf(m, "\n");
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_at_hist_helper);
-
-/* See also ptlrpc_lprocfs_rd_timeouts */
-int lprocfs_rd_timeouts(struct seq_file *m, void *data)
-{
-	struct obd_device *obd = (struct obd_device *)data;
-	struct obd_import *imp;
-	unsigned int cur, worst;
-	time_t now, worstt;
-	struct dhms ts;
-	int i;
-
-	LASSERT(obd != NULL);
-	LPROCFS_CLIMP_CHECK(obd);
-	imp = obd->u.cli.cl_import;
-
-	now = get_seconds();
-
-	/* Some network health info for kicks */
-	s2dhms(&ts, now - imp->imp_last_reply_time);
-	seq_printf(m, "%-10s : %ld, "DHMS_FMT" ago\n",
-		       "last reply", imp->imp_last_reply_time, DHMS_VARS(&ts));
-
-	cur = at_get(&imp->imp_at.iat_net_latency);
-	worst = imp->imp_at.iat_net_latency.at_worst_ever;
-	worstt = imp->imp_at.iat_net_latency.at_worst_time;
-	s2dhms(&ts, now - worstt);
-	seq_printf(m, "%-10s : cur %3u  worst %3u (at %ld, "DHMS_FMT" ago) ",
-		       "network", cur, worst, worstt, DHMS_VARS(&ts));
-	lprocfs_at_hist_helper(m, &imp->imp_at.iat_net_latency);
-
-	for (i = 0; i < IMP_AT_MAX_PORTALS; i++) {
-		if (imp->imp_at.iat_portal[i] == 0)
-			break;
-		cur = at_get(&imp->imp_at.iat_service_estimate[i]);
-		worst = imp->imp_at.iat_service_estimate[i].at_worst_ever;
-		worstt = imp->imp_at.iat_service_estimate[i].at_worst_time;
-		s2dhms(&ts, now - worstt);
-		seq_printf(m, "portal %-2d  : cur %3u  worst %3u (at %ld, "
-			       DHMS_FMT" ago) ", imp->imp_at.iat_portal[i],
-			       cur, worst, worstt, DHMS_VARS(&ts));
-		lprocfs_at_hist_helper(m, &imp->imp_at.iat_service_estimate[i]);
-	}
-
-	LPROCFS_CLIMP_EXIT(obd);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_timeouts);
-
-int lprocfs_rd_connect_flags(struct seq_file *m, void *data)
-{
-	struct obd_device *obd = data;
-	__u64 flags;
-
-	LPROCFS_CLIMP_CHECK(obd);
-	flags = obd->u.cli.cl_import->imp_connect_data.ocd_connect_flags;
-	seq_printf(m, "flags=%#llx\n", flags);
-	obd_connect_seq_flags2str(m, flags, "\n");
-	seq_printf(m, "\n");
-	LPROCFS_CLIMP_EXIT(obd);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_rd_connect_flags);
-
-static struct attribute *obd_def_attrs[] = {
-	&lustre_attr_blocksize.attr,
-	&lustre_attr_kbytestotal.attr,
-	&lustre_attr_kbytesfree.attr,
-	&lustre_attr_kbytesavail.attr,
-	&lustre_attr_filestotal.attr,
-	&lustre_attr_filesfree.attr,
-	&lustre_attr_uuid.attr,
-	NULL,
-};
-
-static void obd_sysfs_release(struct kobject *kobj)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-
-	complete(&obd->obd_kobj_unregister);
-}
-
-static struct kobj_type obd_ktype = {
-	.default_attrs	= obd_def_attrs,
-	.sysfs_ops	= &lustre_sysfs_ops,
-	.release	= obd_sysfs_release,
-};
-
-int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list,
-		      struct attribute_group *attrs)
-{
-	int rc = 0;
-
-	init_completion(&obd->obd_kobj_unregister);
-	rc = kobject_init_and_add(&obd->obd_kobj, &obd_ktype,
-				  obd->obd_type->typ_kobj,
-				  "%s", obd->obd_name);
-	if (rc)
-		return rc;
-
-	if (attrs) {
-		rc = sysfs_create_group(&obd->obd_kobj, attrs);
-		if (rc) {
-			kobject_put(&obd->obd_kobj);
-			return rc;
-		}
-	}
-
-	obd->obd_debugfs_entry = ldebugfs_register(obd->obd_name,
-						   obd->obd_type->typ_debugfs_entry,
-						   list, obd);
-	if (IS_ERR_OR_NULL(obd->obd_debugfs_entry)) {
-		rc = obd->obd_debugfs_entry ? PTR_ERR(obd->obd_debugfs_entry)
-					    : -ENOMEM;
-		CERROR("error %d setting up lprocfs for %s\n",
-		       rc, obd->obd_name);
-		obd->obd_debugfs_entry = NULL;
-	}
-
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_obd_setup);
-
-int lprocfs_obd_cleanup(struct obd_device *obd)
-{
-	if (!obd)
-		return -EINVAL;
-
-	if (!IS_ERR_OR_NULL(obd->obd_debugfs_entry))
-		ldebugfs_remove(&obd->obd_debugfs_entry);
-
-	kobject_put(&obd->obd_kobj);
-	wait_for_completion(&obd->obd_kobj_unregister);
-
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_obd_cleanup);
-
-int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
-{
-	struct lprocfs_counter  *cntr;
-	unsigned int            percpusize;
-	int                     rc = -ENOMEM;
-	unsigned long           flags = 0;
-	int                     i;
-
-	LASSERT(stats->ls_percpu[cpuid] == NULL);
-	LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0);
-
-	percpusize = lprocfs_stats_counter_size(stats);
-	LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize);
-	if (stats->ls_percpu[cpuid] != NULL) {
-		rc = 0;
-		if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) {
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
-				spin_lock_irqsave(&stats->ls_lock, flags);
-			else
-				spin_lock(&stats->ls_lock);
-			if (stats->ls_biggest_alloc_num <= cpuid)
-				stats->ls_biggest_alloc_num = cpuid + 1;
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
-				spin_unlock_irqrestore(&stats->ls_lock, flags);
-			else
-				spin_unlock(&stats->ls_lock);
-		}
-		/* initialize the ls_percpu[cpuid] non-zero counter */
-		for (i = 0; i < stats->ls_num; ++i) {
-			cntr = lprocfs_stats_counter_get(stats, cpuid, i);
-			cntr->lc_min = LC_MIN_INIT;
-		}
-	}
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_stats_alloc_one);
-
-struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num,
-					  enum lprocfs_stats_flags flags)
-{
-	struct lprocfs_stats	*stats;
-	unsigned int		num_entry;
-	unsigned int		percpusize = 0;
-	int			i;
-
-	if (num == 0)
-		return NULL;
-
-	if (lprocfs_no_percpu_stats != 0)
-		flags |= LPROCFS_STATS_FLAG_NOPERCPU;
-
-	if (flags & LPROCFS_STATS_FLAG_NOPERCPU)
-		num_entry = 1;
-	else
-		num_entry = num_possible_cpus();
-
-	/* alloc percpu pointers for all possible cpu slots */
-	LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
-	if (stats == NULL)
-		return NULL;
-
-	stats->ls_num = num;
-	stats->ls_flags = flags;
-	spin_lock_init(&stats->ls_lock);
-
-	/* alloc num of counter headers */
-	LIBCFS_ALLOC(stats->ls_cnt_header,
-		     stats->ls_num * sizeof(struct lprocfs_counter_header));
-	if (stats->ls_cnt_header == NULL)
-		goto fail;
-
-	if ((flags & LPROCFS_STATS_FLAG_NOPERCPU) != 0) {
-		/* contains only one set counters */
-		percpusize = lprocfs_stats_counter_size(stats);
-		LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[0], percpusize);
-		if (stats->ls_percpu[0] == NULL)
-			goto fail;
-		stats->ls_biggest_alloc_num = 1;
-	} else if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) {
-		/* alloc all percpu data, currently only obd_memory use this */
-		for (i = 0; i < num_entry; ++i)
-			if (lprocfs_stats_alloc_one(stats, i) < 0)
-				goto fail;
-	}
-
-	return stats;
-
-fail:
-	lprocfs_free_stats(&stats);
-	return NULL;
-}
-EXPORT_SYMBOL(lprocfs_alloc_stats);
-
-void lprocfs_free_stats(struct lprocfs_stats **statsh)
-{
-	struct lprocfs_stats *stats = *statsh;
-	unsigned int num_entry;
-	unsigned int percpusize;
-	unsigned int i;
-
-	if (stats == NULL || stats->ls_num == 0)
-		return;
-	*statsh = NULL;
-
-	if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU)
-		num_entry = 1;
-	else
-		num_entry = num_possible_cpus();
-
-	percpusize = lprocfs_stats_counter_size(stats);
-	for (i = 0; i < num_entry; i++)
-		if (stats->ls_percpu[i] != NULL)
-			LIBCFS_FREE(stats->ls_percpu[i], percpusize);
-	if (stats->ls_cnt_header != NULL)
-		LIBCFS_FREE(stats->ls_cnt_header, stats->ls_num *
-					sizeof(struct lprocfs_counter_header));
-	LIBCFS_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_entry]));
-}
-EXPORT_SYMBOL(lprocfs_free_stats);
-
-void lprocfs_clear_stats(struct lprocfs_stats *stats)
-{
-	struct lprocfs_counter		*percpu_cntr;
-	int				i;
-	int				j;
-	unsigned int			num_entry;
-	unsigned long			flags = 0;
-
-	num_entry = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
-
-	for (i = 0; i < num_entry; i++) {
-		if (stats->ls_percpu[i] == NULL)
-			continue;
-		for (j = 0; j < stats->ls_num; j++) {
-			percpu_cntr = lprocfs_stats_counter_get(stats, i, j);
-			percpu_cntr->lc_count		= 0;
-			percpu_cntr->lc_min		= LC_MIN_INIT;
-			percpu_cntr->lc_max		= 0;
-			percpu_cntr->lc_sumsquare	= 0;
-			percpu_cntr->lc_sum		= 0;
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
-				percpu_cntr->lc_sum_irq	= 0;
-		}
-	}
-
-	lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
-}
-EXPORT_SYMBOL(lprocfs_clear_stats);
-
-static ssize_t lprocfs_stats_seq_write(struct file *file,
-				       const char __user *buf,
-				       size_t len, loff_t *off)
-{
-	struct seq_file *seq = file->private_data;
-	struct lprocfs_stats *stats = seq->private;
-
-	lprocfs_clear_stats(stats);
-
-	return len;
-}
-
-static void *lprocfs_stats_seq_start(struct seq_file *p, loff_t *pos)
-{
-	struct lprocfs_stats *stats = p->private;
-
-	return (*pos < stats->ls_num) ? pos : NULL;
-}
-
-static void lprocfs_stats_seq_stop(struct seq_file *p, void *v)
-{
-}
-
-static void *lprocfs_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
-	(*pos)++;
-	return lprocfs_stats_seq_start(p, pos);
-}
-
-/* seq file export of one lprocfs counter */
-static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
-{
-	struct lprocfs_stats		*stats	= p->private;
-	struct lprocfs_counter_header   *hdr;
-	struct lprocfs_counter           ctr;
-	int                              idx    = *(loff_t *)v;
-
-	if (idx == 0) {
-		struct timeval now;
-		do_gettimeofday(&now);
-		seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
-			   "snapshot_time",
-			   now.tv_sec, (unsigned long)now.tv_usec);
-	}
-
-	hdr = &stats->ls_cnt_header[idx];
-	lprocfs_stats_collect(stats, idx, &ctr);
-
-	if (ctr.lc_count != 0) {
-		seq_printf(p, "%-25s %lld samples [%s]",
-			   hdr->lc_name, ctr.lc_count, hdr->lc_units);
-
-		if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) &&
-		    (ctr.lc_count > 0)) {
-			seq_printf(p, " %lld %lld %lld",
-				   ctr.lc_min, ctr.lc_max, ctr.lc_sum);
-			if (hdr->lc_config & LPROCFS_CNTR_STDDEV)
-				seq_printf(p, " %lld", ctr.lc_sumsquare);
-		}
-		seq_putc(p, '\n');
-	}
-
-	return 0;
-}
-
-static const struct seq_operations lprocfs_stats_seq_sops = {
-	.start	= lprocfs_stats_seq_start,
-	.stop	= lprocfs_stats_seq_stop,
-	.next	= lprocfs_stats_seq_next,
-	.show	= lprocfs_stats_seq_show,
-};
-
-static int lprocfs_stats_seq_open(struct inode *inode, struct file *file)
-{
-	struct seq_file *seq;
-	int rc;
-
-	rc = seq_open(file, &lprocfs_stats_seq_sops);
-	if (rc)
-		return rc;
-
-	seq = file->private_data;
-	seq->private = inode->i_private;
-
-	return 0;
-}
-
-struct file_operations lprocfs_stats_seq_fops = {
-	.owner   = THIS_MODULE,
-	.open    = lprocfs_stats_seq_open,
-	.read    = seq_read,
-	.write   = lprocfs_stats_seq_write,
-	.llseek  = seq_lseek,
-	.release = lprocfs_seq_release,
-};
-
-int ldebugfs_register_stats(struct dentry *parent, const char *name,
-			   struct lprocfs_stats *stats)
-{
-	struct dentry *entry;
-
-	LASSERT(!IS_ERR_OR_NULL(parent));
-
-	entry = debugfs_create_file(name, 0644, parent, stats,
-				    &lprocfs_stats_seq_fops);
-	if (IS_ERR_OR_NULL(entry))
-		return entry ? PTR_ERR(entry) : -ENOMEM;
-
-	return 0;
-}
-EXPORT_SYMBOL(ldebugfs_register_stats);
-
-void lprocfs_counter_init(struct lprocfs_stats *stats, int index,
-			  unsigned conf, const char *name, const char *units)
-{
-	struct lprocfs_counter_header	*header;
-	struct lprocfs_counter		*percpu_cntr;
-	unsigned long			flags = 0;
-	unsigned int			i;
-	unsigned int			num_cpu;
-
-	LASSERT(stats != NULL);
-
-	header = &stats->ls_cnt_header[index];
-	LASSERTF(header != NULL, "Failed to allocate stats header:[%d]%s/%s\n",
-		 index, name, units);
-
-	header->lc_config = conf;
-	header->lc_name   = name;
-	header->lc_units  = units;
-
-	num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
-	for (i = 0; i < num_cpu; ++i) {
-		if (stats->ls_percpu[i] == NULL)
-			continue;
-		percpu_cntr = lprocfs_stats_counter_get(stats, i, index);
-		percpu_cntr->lc_count		= 0;
-		percpu_cntr->lc_min		= LC_MIN_INIT;
-		percpu_cntr->lc_max		= 0;
-		percpu_cntr->lc_sumsquare	= 0;
-		percpu_cntr->lc_sum		= 0;
-		if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
-			percpu_cntr->lc_sum_irq	= 0;
-	}
-	lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
-}
-EXPORT_SYMBOL(lprocfs_counter_init);
-
-#define LPROCFS_OBD_OP_INIT(base, stats, op)			       \
-do {								       \
-	unsigned int coffset = base + OBD_COUNTER_OFFSET(op);	      \
-	LASSERT(coffset < stats->ls_num);				  \
-	lprocfs_counter_init(stats, coffset, 0, #op, "reqs");	      \
-} while (0)
-
-void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats)
-{
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, iocontrol);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_info);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, set_info_async);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, attach);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, detach);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, setup);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, precleanup);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, cleanup);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, process_config);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, postrecov);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, add_conn);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, del_conn);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, connect);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, reconnect);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, disconnect);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_init);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_fini);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, fid_alloc);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, statfs_async);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, packmd);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, unpackmd);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, preallocate);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, create);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, setattr_async);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, getattr_async);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, adjust_kms);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, preprw);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, commitrw);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, find_cbdata);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, init_export);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, destroy_export);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, import_event);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, notify);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, health_check);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, get_uuid);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotacheck);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, quotactl);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_new);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_rem);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_add);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, pool_del);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, getref);
-	LPROCFS_OBD_OP_INIT(num_private_stats, stats, putref);
-}
-EXPORT_SYMBOL(lprocfs_init_ops_stats);
-
-int lprocfs_alloc_obd_stats(struct obd_device *obd, unsigned num_private_stats)
-{
-	struct lprocfs_stats *stats;
-	unsigned int num_stats;
-	int rc, i;
-
-	LASSERT(obd->obd_stats == NULL);
-	LASSERT(obd->obd_debugfs_entry != NULL);
-	LASSERT(obd->obd_cntr_base == 0);
-
-	num_stats = ((int)sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) +
-		num_private_stats - 1 /* o_owner */;
-	stats = lprocfs_alloc_stats(num_stats, 0);
-	if (stats == NULL)
-		return -ENOMEM;
-
-	lprocfs_init_ops_stats(num_private_stats, stats);
-
-	for (i = num_private_stats; i < num_stats; i++) {
-		/* If this LBUGs, it is likely that an obd
-		 * operation was added to struct obd_ops in
-		 * <obd.h>, and that the corresponding line item
-		 * LPROCFS_OBD_OP_INIT(.., .., opname)
-		 * is missing from the list above. */
-		LASSERTF(stats->ls_cnt_header[i].lc_name != NULL,
-			 "Missing obd_stat initializer obd_op operation at offset %d.\n",
-			 i - num_private_stats);
-	}
-	rc = ldebugfs_register_stats(obd->obd_debugfs_entry, "stats", stats);
-	if (rc < 0) {
-		lprocfs_free_stats(&stats);
-	} else {
-		obd->obd_stats  = stats;
-		obd->obd_cntr_base = num_private_stats;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_alloc_obd_stats);
-
-void lprocfs_free_obd_stats(struct obd_device *obd)
-{
-	if (obd->obd_stats)
-		lprocfs_free_stats(&obd->obd_stats);
-}
-EXPORT_SYMBOL(lprocfs_free_obd_stats);
-
-#define LPROCFS_MD_OP_INIT(base, stats, op)			     \
-do {								    \
-	unsigned int coffset = base + MD_COUNTER_OFFSET(op);	    \
-	LASSERT(coffset < stats->ls_num);			       \
-	lprocfs_counter_init(stats, coffset, 0, #op, "reqs");	   \
-} while (0)
-
-void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats)
-{
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, getstatus);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, null_inode);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, find_cbdata);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, close);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, create);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, done_writing);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, enqueue);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, getattr_name);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_lock);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, link);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, rename);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, is_subdir);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, setattr);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, sync);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, readpage);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, unlink);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, setxattr);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, getxattr);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, init_ea_size);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, get_lustre_md);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, free_lustre_md);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, set_open_replay_data);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, clear_open_replay_data);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, set_lock_data);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, lock_match);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, cancel_unused);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, renew_capa);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, unpack_capa);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, get_remote_perm);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, intent_getattr_async);
-	LPROCFS_MD_OP_INIT(num_private_stats, stats, revalidate_lock);
-}
-EXPORT_SYMBOL(lprocfs_init_mps_stats);
-
-int lprocfs_alloc_md_stats(struct obd_device *obd,
-			   unsigned num_private_stats)
-{
-	struct lprocfs_stats *stats;
-	unsigned int num_stats;
-	int rc, i;
-
-	LASSERT(obd->md_stats == NULL);
-	LASSERT(obd->obd_debugfs_entry != NULL);
-	LASSERT(obd->md_cntr_base == 0);
-
-	num_stats = 1 + MD_COUNTER_OFFSET(revalidate_lock) +
-		    num_private_stats;
-	stats = lprocfs_alloc_stats(num_stats, 0);
-	if (stats == NULL)
-		return -ENOMEM;
-
-	lprocfs_init_mps_stats(num_private_stats, stats);
-
-	for (i = num_private_stats; i < num_stats; i++) {
-		if (stats->ls_cnt_header[i].lc_name == NULL) {
-			CERROR("Missing md_stat initializer md_op operation at offset %d. Aborting.\n",
-			       i - num_private_stats);
-			LBUG();
-		}
-	}
-	rc = ldebugfs_register_stats(obd->obd_debugfs_entry, "md_stats", stats);
-	if (rc < 0) {
-		lprocfs_free_stats(&stats);
-	} else {
-		obd->md_stats  = stats;
-		obd->md_cntr_base = num_private_stats;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(lprocfs_alloc_md_stats);
-
-void lprocfs_free_md_stats(struct obd_device *obd)
-{
-	struct lprocfs_stats *stats = obd->md_stats;
-
-	if (stats != NULL) {
-		obd->md_stats = NULL;
-		obd->md_cntr_base = 0;
-		lprocfs_free_stats(&stats);
-	}
-}
-EXPORT_SYMBOL(lprocfs_free_md_stats);
-
-void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
-{
-	lprocfs_counter_init(ldlm_stats,
-			     LDLM_ENQUEUE - LDLM_FIRST_OPC,
-			     0, "ldlm_enqueue", "reqs");
-	lprocfs_counter_init(ldlm_stats,
-			     LDLM_CONVERT - LDLM_FIRST_OPC,
-			     0, "ldlm_convert", "reqs");
-	lprocfs_counter_init(ldlm_stats,
-			     LDLM_CANCEL - LDLM_FIRST_OPC,
-			     0, "ldlm_cancel", "reqs");
-	lprocfs_counter_init(ldlm_stats,
-			     LDLM_BL_CALLBACK - LDLM_FIRST_OPC,
-			     0, "ldlm_bl_callback", "reqs");
-	lprocfs_counter_init(ldlm_stats,
-			     LDLM_CP_CALLBACK - LDLM_FIRST_OPC,
-			     0, "ldlm_cp_callback", "reqs");
-	lprocfs_counter_init(ldlm_stats,
-			     LDLM_GL_CALLBACK - LDLM_FIRST_OPC,
-			     0, "ldlm_gl_callback", "reqs");
-}
-EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
-
-int lprocfs_exp_cleanup(struct obd_export *exp)
-{
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_exp_cleanup);
-
-__s64 lprocfs_read_helper(struct lprocfs_counter *lc,
-			  struct lprocfs_counter_header *header,
-			  enum lprocfs_stats_flags flags,
-			  enum lprocfs_fields_flags field)
-{
-	__s64 ret = 0;
-
-	if (lc == NULL || header == NULL)
-		return 0;
-
-	switch (field) {
-	case LPROCFS_FIELDS_FLAGS_CONFIG:
-		ret = header->lc_config;
-		break;
-	case LPROCFS_FIELDS_FLAGS_SUM:
-		ret = lc->lc_sum;
-		if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
-			ret += lc->lc_sum_irq;
-		break;
-	case LPROCFS_FIELDS_FLAGS_MIN:
-		ret = lc->lc_min;
-		break;
-	case LPROCFS_FIELDS_FLAGS_MAX:
-		ret = lc->lc_max;
-		break;
-	case LPROCFS_FIELDS_FLAGS_AVG:
-		ret = (lc->lc_max - lc->lc_min) / 2;
-		break;
-	case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
-		ret = lc->lc_sumsquare;
-		break;
-	case LPROCFS_FIELDS_FLAGS_COUNT:
-		ret = lc->lc_count;
-		break;
-	default:
-		break;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_read_helper);
-
-int lprocfs_write_helper(const char __user *buffer, unsigned long count,
-			 int *val)
-{
-	return lprocfs_write_frac_helper(buffer, count, val, 1);
-}
-EXPORT_SYMBOL(lprocfs_write_helper);
-
-int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult)
-{
-	long decimal_val, frac_val;
-
-	decimal_val = val / mult;
-	seq_printf(m, "%ld", decimal_val);
-	frac_val = val % mult;
-
-	if (frac_val > 0) {
-		frac_val *= 100;
-		frac_val /= mult;
-	}
-	if (frac_val > 0) {
-		/* Three cases: x0, xx, 0x */
-		if ((frac_val % 10) != 0)
-			seq_printf(m, ".%ld", frac_val);
-		else
-			seq_printf(m, ".%ld", frac_val / 10);
-	}
-
-	seq_printf(m, "\n");
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_seq_read_frac_helper);
-
-int lprocfs_write_u64_helper(const char __user *buffer, unsigned long count,
-			     __u64 *val)
-{
-	return lprocfs_write_frac_u64_helper(buffer, count, val, 1);
-}
-EXPORT_SYMBOL(lprocfs_write_u64_helper);
-
-int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,
-			      __u64 *val, int mult)
-{
-	char kernbuf[22], *end, *pbuf;
-	__u64 whole, frac = 0, units;
-	unsigned frac_d = 1;
-	int sign = 1;
-
-	if (count > (sizeof(kernbuf) - 1))
-		return -EINVAL;
-
-	if (copy_from_user(kernbuf, buffer, count))
-		return -EFAULT;
-
-	kernbuf[count] = '\0';
-	pbuf = kernbuf;
-	if (*pbuf == '-') {
-		sign = -1;
-		pbuf++;
-	}
-
-	whole = simple_strtoull(pbuf, &end, 10);
-	if (pbuf == end)
-		return -EINVAL;
-
-	if (*end == '.') {
-		int i;
-		pbuf = end + 1;
-
-		/* need to limit frac_d to a __u32 */
-		if (strlen(pbuf) > 10)
-			pbuf[10] = '\0';
-
-		frac = simple_strtoull(pbuf, &end, 10);
-		/* count decimal places */
-		for (i = 0; i < (end - pbuf); i++)
-			frac_d *= 10;
-	}
-
-	units = 1;
-	switch (tolower(*end)) {
-	case 'p':
-		units <<= 10;
-	case 't':
-		units <<= 10;
-	case 'g':
-		units <<= 10;
-	case 'm':
-		units <<= 10;
-	case 'k':
-		units <<= 10;
-	}
-	/* Specified units override the multiplier */
-	if (units > 1)
-		mult = units;
-
-	frac *= mult;
-	do_div(frac, frac_d);
-	*val = sign * (whole * mult + frac);
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_write_frac_u64_helper);
-
-static char *lprocfs_strnstr(const char *s1, const char *s2, size_t len)
-{
-	size_t l2;
-
-	l2 = strlen(s2);
-	if (!l2)
-		return (char *)s1;
-	while (len >= l2) {
-		len--;
-		if (!memcmp(s1, s2, l2))
-			return (char *)s1;
-		s1++;
-	}
-	return NULL;
-}
-
-/**
- * Find the string \a name in the input \a buffer, and return a pointer to the
- * value immediately following \a name, reducing \a count appropriately.
- * If \a name is not found the original \a buffer is returned.
- */
-char *lprocfs_find_named_value(const char *buffer, const char *name,
-			       size_t *count)
-{
-	char *val;
-	size_t buflen = *count;
-
-	/* there is no strnstr() in rhel5 and ubuntu kernels */
-	val = lprocfs_strnstr(buffer, name, buflen);
-	if (val == NULL)
-		return (char *)buffer;
-
-	val += strlen(name);			     /* skip prefix */
-	while (val < buffer + buflen && isspace(*val)) /* skip separator */
-		val++;
-
-	*count = 0;
-	while (val < buffer + buflen && isalnum(*val)) {
-		++*count;
-		++val;
-	}
-
-	return val - *count;
-}
-EXPORT_SYMBOL(lprocfs_find_named_value);
-
-int ldebugfs_seq_create(struct dentry *parent,
-		       const char *name,
-		       umode_t mode,
-		       const struct file_operations *seq_fops,
-		       void *data)
-{
-	struct dentry *entry;
-
-	/* Disallow secretly (un)writable entries. */
-	LASSERT((seq_fops->write == NULL) == ((mode & 0222) == 0));
-
-	entry = debugfs_create_file(name, mode, parent, data, seq_fops);
-	if (IS_ERR_OR_NULL(entry))
-		return entry ? PTR_ERR(entry) : -ENOMEM;
-
-	return 0;
-}
-EXPORT_SYMBOL(ldebugfs_seq_create);
-
-int ldebugfs_obd_seq_create(struct obd_device *dev,
-			    const char *name,
-			    umode_t mode,
-			    const struct file_operations *seq_fops,
-			    void *data)
-{
-	return ldebugfs_seq_create(dev->obd_debugfs_entry, name,
-				   mode, seq_fops, data);
-}
-EXPORT_SYMBOL(ldebugfs_obd_seq_create);
-
-void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value)
-{
-	if (value >= OBD_HIST_MAX)
-		value = OBD_HIST_MAX - 1;
-
-	spin_lock(&oh->oh_lock);
-	oh->oh_buckets[value]++;
-	spin_unlock(&oh->oh_lock);
-}
-EXPORT_SYMBOL(lprocfs_oh_tally);
-
-void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value)
-{
-	unsigned int val;
-
-	for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++)
-		;
-
-	lprocfs_oh_tally(oh, val);
-}
-EXPORT_SYMBOL(lprocfs_oh_tally_log2);
-
-unsigned long lprocfs_oh_sum(struct obd_histogram *oh)
-{
-	unsigned long ret = 0;
-	int i;
-
-	for (i = 0; i < OBD_HIST_MAX; i++)
-		ret +=  oh->oh_buckets[i];
-	return ret;
-}
-EXPORT_SYMBOL(lprocfs_oh_sum);
-
-void lprocfs_oh_clear(struct obd_histogram *oh)
-{
-	spin_lock(&oh->oh_lock);
-	memset(oh->oh_buckets, 0, sizeof(oh->oh_buckets));
-	spin_unlock(&oh->oh_lock);
-}
-EXPORT_SYMBOL(lprocfs_oh_clear);
-
-int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file *m, void *data)
-{
-	struct obd_device *dev = data;
-	struct client_obd *cli = &dev->u.cli;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return 0;
-}
-EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc);
-
-ssize_t lustre_attr_show(struct kobject *kobj,
-			 struct attribute *attr, char *buf)
-{
-	struct lustre_attr *a = container_of(attr, struct lustre_attr, attr);
-
-	return a->show ? a->show(kobj, attr, buf) : 0;
-}
-EXPORT_SYMBOL_GPL(lustre_attr_show);
-
-ssize_t lustre_attr_store(struct kobject *kobj, struct attribute *attr,
-			  const char *buf, size_t len)
-{
-	struct lustre_attr *a = container_of(attr, struct lustre_attr, attr);
-
-	return a->store ? a->store(kobj, attr, buf, len) : len;
-}
-EXPORT_SYMBOL_GPL(lustre_attr_store);
-
-const struct sysfs_ops lustre_sysfs_ops = {
-	.show  = lustre_attr_show,
-	.store = lustre_attr_store,
-};
-EXPORT_SYMBOL_GPL(lustre_sysfs_ops);
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
deleted file mode 100644
index 8e472327c880..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ /dev/null
@@ -1,2188 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/lu_object.c
- *
- * Lustre Object.
- * These are the only exported functions, they provide some generic
- * infrastructure for managing object devices
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-# include <linux/module.h>
-
-/* hash_long() */
-#include "../../include/linux/libcfs/libcfs_hash.h"
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/lustre_disk.h"
-#include "../include/lustre_fid.h"
-#include "../include/lu_object.h"
-#include "../include/lu_ref.h"
-#include <linux/list.h>
-
-static void lu_object_free(const struct lu_env *env, struct lu_object *o);
-
-/**
- * Decrease reference counter on object. If last reference is freed, return
- * object to the cache, unless lu_object_is_dying(o) holds. In the latter
- * case, free object immediately.
- */
-void lu_object_put(const struct lu_env *env, struct lu_object *o)
-{
-	struct lu_site_bkt_data *bkt;
-	struct lu_object_header *top;
-	struct lu_site	  *site;
-	struct lu_object	*orig;
-	struct cfs_hash_bd	    bd;
-	const struct lu_fid     *fid;
-
-	top  = o->lo_header;
-	site = o->lo_dev->ld_site;
-	orig = o;
-
-	/*
-	 * till we have full fids-on-OST implemented anonymous objects
-	 * are possible in OSP. such an object isn't listed in the site
-	 * so we should not remove it from the site.
-	 */
-	fid = lu_object_fid(o);
-	if (fid_is_zero(fid)) {
-		LASSERT(top->loh_hash.next == NULL
-			&& top->loh_hash.pprev == NULL);
-		LASSERT(list_empty(&top->loh_lru));
-		if (!atomic_dec_and_test(&top->loh_ref))
-			return;
-		list_for_each_entry_reverse(o, &top->loh_layers, lo_linkage) {
-			if (o->lo_ops->loo_object_release != NULL)
-				o->lo_ops->loo_object_release(env, o);
-		}
-		lu_object_free(env, orig);
-		return;
-	}
-
-	cfs_hash_bd_get(site->ls_obj_hash, &top->loh_fid, &bd);
-	bkt = cfs_hash_bd_extra_get(site->ls_obj_hash, &bd);
-
-	if (!cfs_hash_bd_dec_and_lock(site->ls_obj_hash, &bd, &top->loh_ref)) {
-		if (lu_object_is_dying(top)) {
-
-			/*
-			 * somebody may be waiting for this, currently only
-			 * used for cl_object, see cl_object_put_last().
-			 */
-			wake_up_all(&bkt->lsb_marche_funebre);
-		}
-		return;
-	}
-
-	LASSERT(bkt->lsb_busy > 0);
-	bkt->lsb_busy--;
-	/*
-	 * When last reference is released, iterate over object
-	 * layers, and notify them that object is no longer busy.
-	 */
-	list_for_each_entry_reverse(o, &top->loh_layers, lo_linkage) {
-		if (o->lo_ops->loo_object_release != NULL)
-			o->lo_ops->loo_object_release(env, o);
-	}
-
-	if (!lu_object_is_dying(top)) {
-		LASSERT(list_empty(&top->loh_lru));
-		list_add_tail(&top->loh_lru, &bkt->lsb_lru);
-		cfs_hash_bd_unlock(site->ls_obj_hash, &bd, 1);
-		return;
-	}
-
-	/*
-	 * If object is dying (will not be cached), removed it
-	 * from hash table and LRU.
-	 *
-	 * This is done with hash table and LRU lists locked. As the only
-	 * way to acquire first reference to previously unreferenced
-	 * object is through hash-table lookup (lu_object_find()),
-	 * or LRU scanning (lu_site_purge()), that are done under hash-table
-	 * and LRU lock, no race with concurrent object lookup is possible
-	 * and we can safely destroy object below.
-	 */
-	if (!test_and_set_bit(LU_OBJECT_UNHASHED, &top->loh_flags))
-		cfs_hash_bd_del_locked(site->ls_obj_hash, &bd, &top->loh_hash);
-	cfs_hash_bd_unlock(site->ls_obj_hash, &bd, 1);
-	/*
-	 * Object was already removed from hash and lru above, can
-	 * kill it.
-	 */
-	lu_object_free(env, orig);
-}
-EXPORT_SYMBOL(lu_object_put);
-
-/**
- * Put object and don't keep in cache. This is temporary solution for
- * multi-site objects when its layering is not constant.
- */
-void lu_object_put_nocache(const struct lu_env *env, struct lu_object *o)
-{
-	set_bit(LU_OBJECT_HEARD_BANSHEE, &o->lo_header->loh_flags);
-	return lu_object_put(env, o);
-}
-EXPORT_SYMBOL(lu_object_put_nocache);
-
-/**
- * Kill the object and take it out of LRU cache.
- * Currently used by client code for layout change.
- */
-void lu_object_unhash(const struct lu_env *env, struct lu_object *o)
-{
-	struct lu_object_header *top;
-
-	top = o->lo_header;
-	set_bit(LU_OBJECT_HEARD_BANSHEE, &top->loh_flags);
-	if (!test_and_set_bit(LU_OBJECT_UNHASHED, &top->loh_flags)) {
-		struct cfs_hash *obj_hash = o->lo_dev->ld_site->ls_obj_hash;
-		struct cfs_hash_bd bd;
-
-		cfs_hash_bd_get_and_lock(obj_hash, &top->loh_fid, &bd, 1);
-		list_del_init(&top->loh_lru);
-		cfs_hash_bd_del_locked(obj_hash, &bd, &top->loh_hash);
-		cfs_hash_bd_unlock(obj_hash, &bd, 1);
-	}
-}
-EXPORT_SYMBOL(lu_object_unhash);
-
-/**
- * Allocate new object.
- *
- * This follows object creation protocol, described in the comment within
- * struct lu_device_operations definition.
- */
-static struct lu_object *lu_object_alloc(const struct lu_env *env,
-					 struct lu_device *dev,
-					 const struct lu_fid *f,
-					 const struct lu_object_conf *conf)
-{
-	struct lu_object *scan;
-	struct lu_object *top;
-	struct list_head *layers;
-	unsigned int init_mask = 0;
-	unsigned int init_flag;
-	int clean;
-	int result;
-
-	/*
-	 * Create top-level object slice. This will also create
-	 * lu_object_header.
-	 */
-	top = dev->ld_ops->ldo_object_alloc(env, NULL, dev);
-	if (top == NULL)
-		return ERR_PTR(-ENOMEM);
-	if (IS_ERR(top))
-		return top;
-	/*
-	 * This is the only place where object fid is assigned. It's constant
-	 * after this point.
-	 */
-	top->lo_header->loh_fid = *f;
-	layers = &top->lo_header->loh_layers;
-
-	do {
-		/*
-		 * Call ->loo_object_init() repeatedly, until no more new
-		 * object slices are created.
-		 */
-		clean = 1;
-		init_flag = 1;
-		list_for_each_entry(scan, layers, lo_linkage) {
-			if (init_mask & init_flag)
-				goto next;
-			clean = 0;
-			scan->lo_header = top->lo_header;
-			result = scan->lo_ops->loo_object_init(env, scan, conf);
-			if (result != 0) {
-				lu_object_free(env, top);
-				return ERR_PTR(result);
-			}
-			init_mask |= init_flag;
-next:
-			init_flag <<= 1;
-		}
-	} while (!clean);
-
-	list_for_each_entry_reverse(scan, layers, lo_linkage) {
-		if (scan->lo_ops->loo_object_start != NULL) {
-			result = scan->lo_ops->loo_object_start(env, scan);
-			if (result != 0) {
-				lu_object_free(env, top);
-				return ERR_PTR(result);
-			}
-		}
-	}
-
-	lprocfs_counter_incr(dev->ld_site->ls_stats, LU_SS_CREATED);
-	return top;
-}
-
-/**
- * Free an object.
- */
-static void lu_object_free(const struct lu_env *env, struct lu_object *o)
-{
-	struct lu_site_bkt_data *bkt;
-	struct lu_site	  *site;
-	struct lu_object	*scan;
-	struct list_head	      *layers;
-	struct list_head	       splice;
-
-	site   = o->lo_dev->ld_site;
-	layers = &o->lo_header->loh_layers;
-	bkt    = lu_site_bkt_from_fid(site, &o->lo_header->loh_fid);
-	/*
-	 * First call ->loo_object_delete() method to release all resources.
-	 */
-	list_for_each_entry_reverse(scan, layers, lo_linkage) {
-		if (scan->lo_ops->loo_object_delete != NULL)
-			scan->lo_ops->loo_object_delete(env, scan);
-	}
-
-	/*
-	 * Then, splice object layers into stand-alone list, and call
-	 * ->loo_object_free() on all layers to free memory. Splice is
-	 * necessary, because lu_object_header is freed together with the
-	 * top-level slice.
-	 */
-	INIT_LIST_HEAD(&splice);
-	list_splice_init(layers, &splice);
-	while (!list_empty(&splice)) {
-		/*
-		 * Free layers in bottom-to-top order, so that object header
-		 * lives as long as possible and ->loo_object_free() methods
-		 * can look at its contents.
-		 */
-		o = container_of0(splice.prev, struct lu_object, lo_linkage);
-		list_del_init(&o->lo_linkage);
-		LASSERT(o->lo_ops->loo_object_free != NULL);
-		o->lo_ops->loo_object_free(env, o);
-	}
-
-	if (waitqueue_active(&bkt->lsb_marche_funebre))
-		wake_up_all(&bkt->lsb_marche_funebre);
-}
-
-/**
- * Free \a nr objects from the cold end of the site LRU list.
- */
-int lu_site_purge(const struct lu_env *env, struct lu_site *s, int nr)
-{
-	struct lu_object_header *h;
-	struct lu_object_header *temp;
-	struct lu_site_bkt_data *bkt;
-	struct cfs_hash_bd	    bd;
-	struct cfs_hash_bd	    bd2;
-	struct list_head	       dispose;
-	int		      did_sth;
-	int		      start;
-	int		      count;
-	int		      bnr;
-	int		      i;
-
-	if (OBD_FAIL_CHECK(OBD_FAIL_OBD_NO_LRU))
-		return 0;
-
-	INIT_LIST_HEAD(&dispose);
-	/*
-	 * Under LRU list lock, scan LRU list and move unreferenced objects to
-	 * the dispose list, removing them from LRU and hash table.
-	 */
-	start = s->ls_purge_start;
-	bnr = (nr == ~0) ? -1 : nr / CFS_HASH_NBKT(s->ls_obj_hash) + 1;
- again:
-	did_sth = 0;
-	cfs_hash_for_each_bucket(s->ls_obj_hash, &bd, i) {
-		if (i < start)
-			continue;
-		count = bnr;
-		cfs_hash_bd_lock(s->ls_obj_hash, &bd, 1);
-		bkt = cfs_hash_bd_extra_get(s->ls_obj_hash, &bd);
-
-		list_for_each_entry_safe(h, temp, &bkt->lsb_lru, loh_lru) {
-			LASSERT(atomic_read(&h->loh_ref) == 0);
-
-			cfs_hash_bd_get(s->ls_obj_hash, &h->loh_fid, &bd2);
-			LASSERT(bd.bd_bucket == bd2.bd_bucket);
-
-			cfs_hash_bd_del_locked(s->ls_obj_hash,
-					       &bd2, &h->loh_hash);
-			list_move(&h->loh_lru, &dispose);
-			if (did_sth == 0)
-				did_sth = 1;
-
-			if (nr != ~0 && --nr == 0)
-				break;
-
-			if (count > 0 && --count == 0)
-				break;
-
-		}
-		cfs_hash_bd_unlock(s->ls_obj_hash, &bd, 1);
-		cond_resched();
-		/*
-		 * Free everything on the dispose list. This is safe against
-		 * races due to the reasons described in lu_object_put().
-		 */
-		while (!list_empty(&dispose)) {
-			h = container_of0(dispose.next,
-					  struct lu_object_header, loh_lru);
-			list_del_init(&h->loh_lru);
-			lu_object_free(env, lu_object_top(h));
-			lprocfs_counter_incr(s->ls_stats, LU_SS_LRU_PURGED);
-		}
-
-		if (nr == 0)
-			break;
-	}
-
-	if (nr != 0 && did_sth && start != 0) {
-		start = 0; /* restart from the first bucket */
-		goto again;
-	}
-	/* race on s->ls_purge_start, but nobody cares */
-	s->ls_purge_start = i % CFS_HASH_NBKT(s->ls_obj_hash);
-
-	return nr;
-}
-EXPORT_SYMBOL(lu_site_purge);
-
-/*
- * Object printing.
- *
- * Code below has to jump through certain loops to output object description
- * into libcfs_debug_msg-based log. The problem is that lu_object_print()
- * composes object description from strings that are parts of _lines_ of
- * output (i.e., strings that are not terminated by newline). This doesn't fit
- * very well into libcfs_debug_msg() interface that assumes that each message
- * supplied to it is a self-contained output line.
- *
- * To work around this, strings are collected in a temporary buffer
- * (implemented as a value of lu_cdebug_key key), until terminating newline
- * character is detected.
- *
- */
-
-enum {
-	/**
-	 * Maximal line size.
-	 *
-	 * XXX overflow is not handled correctly.
-	 */
-	LU_CDEBUG_LINE = 512
-};
-
-struct lu_cdebug_data {
-	/**
-	 * Temporary buffer.
-	 */
-	char lck_area[LU_CDEBUG_LINE];
-};
-
-/* context key constructor/destructor: lu_global_key_init, lu_global_key_fini */
-LU_KEY_INIT_FINI(lu_global, struct lu_cdebug_data);
-
-/**
- * Key, holding temporary buffer. This key is registered very early by
- * lu_global_init().
- */
-struct lu_context_key lu_global_key = {
-	.lct_tags = LCT_MD_THREAD | LCT_DT_THREAD |
-		    LCT_MG_THREAD | LCT_CL_THREAD | LCT_LOCAL,
-	.lct_init = lu_global_key_init,
-	.lct_fini = lu_global_key_fini
-};
-
-/**
- * Printer function emitting messages through libcfs_debug_msg().
- */
-int lu_cdebug_printer(const struct lu_env *env,
-		      void *cookie, const char *format, ...)
-{
-	struct libcfs_debug_msg_data *msgdata = cookie;
-	struct lu_cdebug_data	*key;
-	int used;
-	int complete;
-	va_list args;
-
-	va_start(args, format);
-
-	key = lu_context_key_get(&env->le_ctx, &lu_global_key);
-	LASSERT(key != NULL);
-
-	used = strlen(key->lck_area);
-	complete = format[strlen(format) - 1] == '\n';
-	/*
-	 * Append new chunk to the buffer.
-	 */
-	vsnprintf(key->lck_area + used,
-		  ARRAY_SIZE(key->lck_area) - used, format, args);
-	if (complete) {
-		if (cfs_cdebug_show(msgdata->msg_mask, msgdata->msg_subsys))
-			libcfs_debug_msg(msgdata, "%s", key->lck_area);
-		key->lck_area[0] = 0;
-	}
-	va_end(args);
-	return 0;
-}
-EXPORT_SYMBOL(lu_cdebug_printer);
-
-/**
- * Print object header.
- */
-void lu_object_header_print(const struct lu_env *env, void *cookie,
-			    lu_printer_t printer,
-			    const struct lu_object_header *hdr)
-{
-	(*printer)(env, cookie, "header@%p[%#lx, %d, "DFID"%s%s%s]",
-		   hdr, hdr->loh_flags, atomic_read(&hdr->loh_ref),
-		   PFID(&hdr->loh_fid),
-		   hlist_unhashed(&hdr->loh_hash) ? "" : " hash",
-		   list_empty((struct list_head *)&hdr->loh_lru) ? \
-		   "" : " lru",
-		   hdr->loh_attr & LOHA_EXISTS ? " exist":"");
-}
-EXPORT_SYMBOL(lu_object_header_print);
-
-/**
- * Print human readable representation of the \a o to the \a printer.
- */
-void lu_object_print(const struct lu_env *env, void *cookie,
-		     lu_printer_t printer, const struct lu_object *o)
-{
-	static const char ruler[] = "........................................";
-	struct lu_object_header *top;
-	int depth = 4;
-
-	top = o->lo_header;
-	lu_object_header_print(env, cookie, printer, top);
-	(*printer)(env, cookie, "{\n");
-
-	list_for_each_entry(o, &top->loh_layers, lo_linkage) {
-		/*
-		 * print `.' \a depth times followed by type name and address
-		 */
-		(*printer)(env, cookie, "%*.*s%s@%p", depth, depth, ruler,
-			   o->lo_dev->ld_type->ldt_name, o);
-
-		if (o->lo_ops->loo_object_print != NULL)
-			(*o->lo_ops->loo_object_print)(env, cookie, printer, o);
-
-		(*printer)(env, cookie, "\n");
-	}
-
-	(*printer)(env, cookie, "} header@%p\n", top);
-}
-EXPORT_SYMBOL(lu_object_print);
-
-/**
- * Check object consistency.
- */
-int lu_object_invariant(const struct lu_object *o)
-{
-	struct lu_object_header *top;
-
-	top = o->lo_header;
-	list_for_each_entry(o, &top->loh_layers, lo_linkage) {
-		if (o->lo_ops->loo_object_invariant != NULL &&
-		    !o->lo_ops->loo_object_invariant(o))
-			return 0;
-	}
-	return 1;
-}
-EXPORT_SYMBOL(lu_object_invariant);
-
-static struct lu_object *htable_lookup(struct lu_site *s,
-				       struct cfs_hash_bd *bd,
-				       const struct lu_fid *f,
-				       wait_queue_t *waiter,
-				       __u64 *version)
-{
-	struct lu_site_bkt_data *bkt;
-	struct lu_object_header *h;
-	struct hlist_node	*hnode;
-	__u64  ver = cfs_hash_bd_version_get(bd);
-
-	if (*version == ver)
-		return ERR_PTR(-ENOENT);
-
-	*version = ver;
-	bkt = cfs_hash_bd_extra_get(s->ls_obj_hash, bd);
-	/* cfs_hash_bd_peek_locked is a somehow "internal" function
-	 * of cfs_hash, it doesn't add refcount on object. */
-	hnode = cfs_hash_bd_peek_locked(s->ls_obj_hash, bd, (void *)f);
-	if (hnode == NULL) {
-		lprocfs_counter_incr(s->ls_stats, LU_SS_CACHE_MISS);
-		return ERR_PTR(-ENOENT);
-	}
-
-	h = container_of0(hnode, struct lu_object_header, loh_hash);
-	if (likely(!lu_object_is_dying(h))) {
-		cfs_hash_get(s->ls_obj_hash, hnode);
-		lprocfs_counter_incr(s->ls_stats, LU_SS_CACHE_HIT);
-		list_del_init(&h->loh_lru);
-		return lu_object_top(h);
-	}
-
-	/*
-	 * Lookup found an object being destroyed this object cannot be
-	 * returned (to assure that references to dying objects are eventually
-	 * drained), and moreover, lookup has to wait until object is freed.
-	 */
-
-	init_waitqueue_entry(waiter, current);
-	add_wait_queue(&bkt->lsb_marche_funebre, waiter);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	lprocfs_counter_incr(s->ls_stats, LU_SS_CACHE_DEATH_RACE);
-	return ERR_PTR(-EAGAIN);
-}
-
-/**
- * Search cache for an object with the fid \a f. If such object is found,
- * return it. Otherwise, create new object, insert it into cache and return
- * it. In any case, additional reference is acquired on the returned object.
- */
-struct lu_object *lu_object_find(const struct lu_env *env,
-				 struct lu_device *dev, const struct lu_fid *f,
-				 const struct lu_object_conf *conf)
-{
-	return lu_object_find_at(env, dev->ld_site->ls_top_dev, f, conf);
-}
-EXPORT_SYMBOL(lu_object_find);
-
-static struct lu_object *lu_object_new(const struct lu_env *env,
-				       struct lu_device *dev,
-				       const struct lu_fid *f,
-				       const struct lu_object_conf *conf)
-{
-	struct lu_object	*o;
-	struct cfs_hash	      *hs;
-	struct cfs_hash_bd	    bd;
-	struct lu_site_bkt_data *bkt;
-
-	o = lu_object_alloc(env, dev, f, conf);
-	if (IS_ERR(o))
-		return o;
-
-	hs = dev->ld_site->ls_obj_hash;
-	cfs_hash_bd_get_and_lock(hs, (void *)f, &bd, 1);
-	bkt = cfs_hash_bd_extra_get(hs, &bd);
-	cfs_hash_bd_add_locked(hs, &bd, &o->lo_header->loh_hash);
-	bkt->lsb_busy++;
-	cfs_hash_bd_unlock(hs, &bd, 1);
-	return o;
-}
-
-/**
- * Core logic of lu_object_find*() functions.
- */
-static struct lu_object *lu_object_find_try(const struct lu_env *env,
-					    struct lu_device *dev,
-					    const struct lu_fid *f,
-					    const struct lu_object_conf *conf,
-					    wait_queue_t *waiter)
-{
-	struct lu_object      *o;
-	struct lu_object      *shadow;
-	struct lu_site	*s;
-	struct cfs_hash	    *hs;
-	struct cfs_hash_bd	  bd;
-	__u64		  version = 0;
-
-	/*
-	 * This uses standard index maintenance protocol:
-	 *
-	 *     - search index under lock, and return object if found;
-	 *     - otherwise, unlock index, allocate new object;
-	 *     - lock index and search again;
-	 *     - if nothing is found (usual case), insert newly created
-	 *       object into index;
-	 *     - otherwise (race: other thread inserted object), free
-	 *       object just allocated.
-	 *     - unlock index;
-	 *     - return object.
-	 *
-	 * For "LOC_F_NEW" case, we are sure the object is new established.
-	 * It is unnecessary to perform lookup-alloc-lookup-insert, instead,
-	 * just alloc and insert directly.
-	 *
-	 * If dying object is found during index search, add @waiter to the
-	 * site wait-queue and return ERR_PTR(-EAGAIN).
-	 */
-	if (conf != NULL && conf->loc_flags & LOC_F_NEW)
-		return lu_object_new(env, dev, f, conf);
-
-	s  = dev->ld_site;
-	hs = s->ls_obj_hash;
-	cfs_hash_bd_get_and_lock(hs, (void *)f, &bd, 1);
-	o = htable_lookup(s, &bd, f, waiter, &version);
-	cfs_hash_bd_unlock(hs, &bd, 1);
-	if (!IS_ERR(o) || PTR_ERR(o) != -ENOENT)
-		return o;
-
-	/*
-	 * Allocate new object. This may result in rather complicated
-	 * operations, including fld queries, inode loading, etc.
-	 */
-	o = lu_object_alloc(env, dev, f, conf);
-	if (IS_ERR(o))
-		return o;
-
-	LASSERT(lu_fid_eq(lu_object_fid(o), f));
-
-	cfs_hash_bd_lock(hs, &bd, 1);
-
-	shadow = htable_lookup(s, &bd, f, waiter, &version);
-	if (likely(PTR_ERR(shadow) == -ENOENT)) {
-		struct lu_site_bkt_data *bkt;
-
-		bkt = cfs_hash_bd_extra_get(hs, &bd);
-		cfs_hash_bd_add_locked(hs, &bd, &o->lo_header->loh_hash);
-		bkt->lsb_busy++;
-		cfs_hash_bd_unlock(hs, &bd, 1);
-		return o;
-	}
-
-	lprocfs_counter_incr(s->ls_stats, LU_SS_CACHE_RACE);
-	cfs_hash_bd_unlock(hs, &bd, 1);
-	lu_object_free(env, o);
-	return shadow;
-}
-
-/**
- * Much like lu_object_find(), but top level device of object is specifically
- * \a dev rather than top level device of the site. This interface allows
- * objects of different "stacking" to be created within the same site.
- */
-struct lu_object *lu_object_find_at(const struct lu_env *env,
-				    struct lu_device *dev,
-				    const struct lu_fid *f,
-				    const struct lu_object_conf *conf)
-{
-	struct lu_site_bkt_data *bkt;
-	struct lu_object	*obj;
-	wait_queue_t	   wait;
-
-	while (1) {
-		obj = lu_object_find_try(env, dev, f, conf, &wait);
-		if (obj != ERR_PTR(-EAGAIN))
-			return obj;
-		/*
-		 * lu_object_find_try() already added waiter into the
-		 * wait queue.
-		 */
-		schedule();
-		bkt = lu_site_bkt_from_fid(dev->ld_site, (void *)f);
-		remove_wait_queue(&bkt->lsb_marche_funebre, &wait);
-	}
-}
-EXPORT_SYMBOL(lu_object_find_at);
-
-/**
- * Find object with given fid, and return its slice belonging to given device.
- */
-struct lu_object *lu_object_find_slice(const struct lu_env *env,
-				       struct lu_device *dev,
-				       const struct lu_fid *f,
-				       const struct lu_object_conf *conf)
-{
-	struct lu_object *top;
-	struct lu_object *obj;
-
-	top = lu_object_find(env, dev, f, conf);
-	if (!IS_ERR(top)) {
-		obj = lu_object_locate(top->lo_header, dev->ld_type);
-		if (obj == NULL)
-			lu_object_put(env, top);
-	} else
-		obj = top;
-	return obj;
-}
-EXPORT_SYMBOL(lu_object_find_slice);
-
-/**
- * Global list of all device types.
- */
-static LIST_HEAD(lu_device_types);
-
-int lu_device_type_init(struct lu_device_type *ldt)
-{
-	int result = 0;
-
-	INIT_LIST_HEAD(&ldt->ldt_linkage);
-	if (ldt->ldt_ops->ldto_init)
-		result = ldt->ldt_ops->ldto_init(ldt);
-	if (result == 0)
-		list_add(&ldt->ldt_linkage, &lu_device_types);
-	return result;
-}
-EXPORT_SYMBOL(lu_device_type_init);
-
-void lu_device_type_fini(struct lu_device_type *ldt)
-{
-	list_del_init(&ldt->ldt_linkage);
-	if (ldt->ldt_ops->ldto_fini)
-		ldt->ldt_ops->ldto_fini(ldt);
-}
-EXPORT_SYMBOL(lu_device_type_fini);
-
-void lu_types_stop(void)
-{
-	struct lu_device_type *ldt;
-
-	list_for_each_entry(ldt, &lu_device_types, ldt_linkage) {
-		if (ldt->ldt_device_nr == 0 && ldt->ldt_ops->ldto_stop)
-			ldt->ldt_ops->ldto_stop(ldt);
-	}
-}
-EXPORT_SYMBOL(lu_types_stop);
-
-/**
- * Global list of all sites on this node
- */
-static LIST_HEAD(lu_sites);
-static DEFINE_MUTEX(lu_sites_guard);
-
-/**
- * Global environment used by site shrinker.
- */
-static struct lu_env lu_shrink_env;
-
-struct lu_site_print_arg {
-	struct lu_env   *lsp_env;
-	void	    *lsp_cookie;
-	lu_printer_t     lsp_printer;
-};
-
-static int
-lu_site_obj_print(struct cfs_hash *hs, struct cfs_hash_bd *bd,
-		  struct hlist_node *hnode, void *data)
-{
-	struct lu_site_print_arg *arg = (struct lu_site_print_arg *)data;
-	struct lu_object_header  *h;
-
-	h = hlist_entry(hnode, struct lu_object_header, loh_hash);
-	if (!list_empty(&h->loh_layers)) {
-		const struct lu_object *o;
-
-		o = lu_object_top(h);
-		lu_object_print(arg->lsp_env, arg->lsp_cookie,
-				arg->lsp_printer, o);
-	} else {
-		lu_object_header_print(arg->lsp_env, arg->lsp_cookie,
-				       arg->lsp_printer, h);
-	}
-	return 0;
-}
-
-/**
- * Print all objects in \a s.
- */
-void lu_site_print(const struct lu_env *env, struct lu_site *s, void *cookie,
-		   lu_printer_t printer)
-{
-	struct lu_site_print_arg arg = {
-		.lsp_env     = (struct lu_env *)env,
-		.lsp_cookie  = cookie,
-		.lsp_printer = printer,
-	};
-
-	cfs_hash_for_each(s->ls_obj_hash, lu_site_obj_print, &arg);
-}
-EXPORT_SYMBOL(lu_site_print);
-
-enum {
-	LU_CACHE_PERCENT_MAX     = 50,
-	LU_CACHE_PERCENT_DEFAULT = 20
-};
-
-static unsigned int lu_cache_percent = LU_CACHE_PERCENT_DEFAULT;
-module_param(lu_cache_percent, int, 0644);
-MODULE_PARM_DESC(lu_cache_percent, "Percentage of memory to be used as lu_object cache");
-
-/**
- * Return desired hash table order.
- */
-static int lu_htable_order(void)
-{
-	unsigned long cache_size;
-	int bits;
-
-	/*
-	 * Calculate hash table size, assuming that we want reasonable
-	 * performance when 20% of total memory is occupied by cache of
-	 * lu_objects.
-	 *
-	 * Size of lu_object is (arbitrary) taken as 1K (together with inode).
-	 */
-	cache_size = totalram_pages;
-
-#if BITS_PER_LONG == 32
-	/* limit hashtable size for lowmem systems to low RAM */
-	if (cache_size > 1 << (30 - PAGE_CACHE_SHIFT))
-		cache_size = 1 << (30 - PAGE_CACHE_SHIFT) * 3 / 4;
-#endif
-
-	/* clear off unreasonable cache setting. */
-	if (lu_cache_percent == 0 || lu_cache_percent > LU_CACHE_PERCENT_MAX) {
-		CWARN("obdclass: invalid lu_cache_percent: %u, it must be in the range of (0, %u]. Will use default value: %u.\n",
-		      lu_cache_percent, LU_CACHE_PERCENT_MAX,
-		      LU_CACHE_PERCENT_DEFAULT);
-
-		lu_cache_percent = LU_CACHE_PERCENT_DEFAULT;
-	}
-	cache_size = cache_size / 100 * lu_cache_percent *
-		(PAGE_CACHE_SIZE / 1024);
-
-	for (bits = 1; (1 << bits) < cache_size; ++bits) {
-		;
-	}
-	return bits;
-}
-
-static unsigned lu_obj_hop_hash(struct cfs_hash *hs,
-				const void *key, unsigned mask)
-{
-	struct lu_fid  *fid = (struct lu_fid *)key;
-	__u32	   hash;
-
-	hash = fid_flatten32(fid);
-	hash += (hash >> 4) + (hash << 12); /* mixing oid and seq */
-	hash = hash_long(hash, hs->hs_bkt_bits);
-
-	/* give me another random factor */
-	hash -= hash_long((unsigned long)hs, fid_oid(fid) % 11 + 3);
-
-	hash <<= hs->hs_cur_bits - hs->hs_bkt_bits;
-	hash |= (fid_seq(fid) + fid_oid(fid)) & (CFS_HASH_NBKT(hs) - 1);
-
-	return hash & mask;
-}
-
-static void *lu_obj_hop_object(struct hlist_node *hnode)
-{
-	return hlist_entry(hnode, struct lu_object_header, loh_hash);
-}
-
-static void *lu_obj_hop_key(struct hlist_node *hnode)
-{
-	struct lu_object_header *h;
-
-	h = hlist_entry(hnode, struct lu_object_header, loh_hash);
-	return &h->loh_fid;
-}
-
-static int lu_obj_hop_keycmp(const void *key, struct hlist_node *hnode)
-{
-	struct lu_object_header *h;
-
-	h = hlist_entry(hnode, struct lu_object_header, loh_hash);
-	return lu_fid_eq(&h->loh_fid, (struct lu_fid *)key);
-}
-
-static void lu_obj_hop_get(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct lu_object_header *h;
-
-	h = hlist_entry(hnode, struct lu_object_header, loh_hash);
-	if (atomic_add_return(1, &h->loh_ref) == 1) {
-		struct lu_site_bkt_data *bkt;
-		struct cfs_hash_bd	    bd;
-
-		cfs_hash_bd_get(hs, &h->loh_fid, &bd);
-		bkt = cfs_hash_bd_extra_get(hs, &bd);
-		bkt->lsb_busy++;
-	}
-}
-
-static void lu_obj_hop_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	LBUG(); /* we should never called it */
-}
-
-cfs_hash_ops_t lu_site_hash_ops = {
-	.hs_hash	= lu_obj_hop_hash,
-	.hs_key	 = lu_obj_hop_key,
-	.hs_keycmp      = lu_obj_hop_keycmp,
-	.hs_object      = lu_obj_hop_object,
-	.hs_get	 = lu_obj_hop_get,
-	.hs_put_locked  = lu_obj_hop_put_locked,
-};
-
-void lu_dev_add_linkage(struct lu_site *s, struct lu_device *d)
-{
-	spin_lock(&s->ls_ld_lock);
-	if (list_empty(&d->ld_linkage))
-		list_add(&d->ld_linkage, &s->ls_ld_linkage);
-	spin_unlock(&s->ls_ld_lock);
-}
-EXPORT_SYMBOL(lu_dev_add_linkage);
-
-void lu_dev_del_linkage(struct lu_site *s, struct lu_device *d)
-{
-	spin_lock(&s->ls_ld_lock);
-	list_del_init(&d->ld_linkage);
-	spin_unlock(&s->ls_ld_lock);
-}
-EXPORT_SYMBOL(lu_dev_del_linkage);
-
-/**
- * Initialize site \a s, with \a d as the top level device.
- */
-#define LU_SITE_BITS_MIN    12
-#define LU_SITE_BITS_MAX    24
-/**
- * total 256 buckets, we don't want too many buckets because:
- * - consume too much memory
- * - avoid unbalanced LRU list
- */
-#define LU_SITE_BKT_BITS    8
-
-int lu_site_init(struct lu_site *s, struct lu_device *top)
-{
-	struct lu_site_bkt_data *bkt;
-	struct cfs_hash_bd bd;
-	char name[16];
-	int bits;
-	int i;
-
-	memset(s, 0, sizeof(*s));
-	bits = lu_htable_order();
-	snprintf(name, 16, "lu_site_%s", top->ld_type->ldt_name);
-	for (bits = min(max(LU_SITE_BITS_MIN, bits), LU_SITE_BITS_MAX);
-	     bits >= LU_SITE_BITS_MIN; bits--) {
-		s->ls_obj_hash = cfs_hash_create(name, bits, bits,
-						 bits - LU_SITE_BKT_BITS,
-						 sizeof(*bkt), 0, 0,
-						 &lu_site_hash_ops,
-						 CFS_HASH_SPIN_BKTLOCK |
-						 CFS_HASH_NO_ITEMREF |
-						 CFS_HASH_DEPTH |
-						 CFS_HASH_ASSERT_EMPTY);
-		if (s->ls_obj_hash != NULL)
-			break;
-	}
-
-	if (s->ls_obj_hash == NULL) {
-		CERROR("failed to create lu_site hash with bits: %d\n", bits);
-		return -ENOMEM;
-	}
-
-	cfs_hash_for_each_bucket(s->ls_obj_hash, &bd, i) {
-		bkt = cfs_hash_bd_extra_get(s->ls_obj_hash, &bd);
-		INIT_LIST_HEAD(&bkt->lsb_lru);
-		init_waitqueue_head(&bkt->lsb_marche_funebre);
-	}
-
-	s->ls_stats = lprocfs_alloc_stats(LU_SS_LAST_STAT, 0);
-	if (s->ls_stats == NULL) {
-		cfs_hash_putref(s->ls_obj_hash);
-		s->ls_obj_hash = NULL;
-		return -ENOMEM;
-	}
-
-	lprocfs_counter_init(s->ls_stats, LU_SS_CREATED,
-			     0, "created", "created");
-	lprocfs_counter_init(s->ls_stats, LU_SS_CACHE_HIT,
-			     0, "cache_hit", "cache_hit");
-	lprocfs_counter_init(s->ls_stats, LU_SS_CACHE_MISS,
-			     0, "cache_miss", "cache_miss");
-	lprocfs_counter_init(s->ls_stats, LU_SS_CACHE_RACE,
-			     0, "cache_race", "cache_race");
-	lprocfs_counter_init(s->ls_stats, LU_SS_CACHE_DEATH_RACE,
-			     0, "cache_death_race", "cache_death_race");
-	lprocfs_counter_init(s->ls_stats, LU_SS_LRU_PURGED,
-			     0, "lru_purged", "lru_purged");
-
-	INIT_LIST_HEAD(&s->ls_linkage);
-	s->ls_top_dev = top;
-	top->ld_site = s;
-	lu_device_get(top);
-	lu_ref_add(&top->ld_reference, "site-top", s);
-
-	INIT_LIST_HEAD(&s->ls_ld_linkage);
-	spin_lock_init(&s->ls_ld_lock);
-
-	lu_dev_add_linkage(s, top);
-
-	return 0;
-}
-EXPORT_SYMBOL(lu_site_init);
-
-/**
- * Finalize \a s and release its resources.
- */
-void lu_site_fini(struct lu_site *s)
-{
-	mutex_lock(&lu_sites_guard);
-	list_del_init(&s->ls_linkage);
-	mutex_unlock(&lu_sites_guard);
-
-	if (s->ls_obj_hash != NULL) {
-		cfs_hash_putref(s->ls_obj_hash);
-		s->ls_obj_hash = NULL;
-	}
-
-	if (s->ls_top_dev != NULL) {
-		s->ls_top_dev->ld_site = NULL;
-		lu_ref_del(&s->ls_top_dev->ld_reference, "site-top", s);
-		lu_device_put(s->ls_top_dev);
-		s->ls_top_dev = NULL;
-	}
-
-	if (s->ls_stats != NULL)
-		lprocfs_free_stats(&s->ls_stats);
-}
-EXPORT_SYMBOL(lu_site_fini);
-
-/**
- * Called when initialization of stack for this site is completed.
- */
-int lu_site_init_finish(struct lu_site *s)
-{
-	int result;
-	mutex_lock(&lu_sites_guard);
-	result = lu_context_refill(&lu_shrink_env.le_ctx);
-	if (result == 0)
-		list_add(&s->ls_linkage, &lu_sites);
-	mutex_unlock(&lu_sites_guard);
-	return result;
-}
-EXPORT_SYMBOL(lu_site_init_finish);
-
-/**
- * Acquire additional reference on device \a d
- */
-void lu_device_get(struct lu_device *d)
-{
-	atomic_inc(&d->ld_ref);
-}
-EXPORT_SYMBOL(lu_device_get);
-
-/**
- * Release reference on device \a d.
- */
-void lu_device_put(struct lu_device *d)
-{
-	LASSERT(atomic_read(&d->ld_ref) > 0);
-	atomic_dec(&d->ld_ref);
-}
-EXPORT_SYMBOL(lu_device_put);
-
-/**
- * Initialize device \a d of type \a t.
- */
-int lu_device_init(struct lu_device *d, struct lu_device_type *t)
-{
-	if (t->ldt_device_nr++ == 0 && t->ldt_ops->ldto_start != NULL)
-		t->ldt_ops->ldto_start(t);
-	memset(d, 0, sizeof(*d));
-	atomic_set(&d->ld_ref, 0);
-	d->ld_type = t;
-	lu_ref_init(&d->ld_reference);
-	INIT_LIST_HEAD(&d->ld_linkage);
-	return 0;
-}
-EXPORT_SYMBOL(lu_device_init);
-
-/**
- * Finalize device \a d.
- */
-void lu_device_fini(struct lu_device *d)
-{
-	struct lu_device_type *t;
-
-	t = d->ld_type;
-	if (d->ld_obd != NULL) {
-		d->ld_obd->obd_lu_dev = NULL;
-		d->ld_obd = NULL;
-	}
-
-	lu_ref_fini(&d->ld_reference);
-	LASSERTF(atomic_read(&d->ld_ref) == 0,
-		 "Refcount is %u\n", atomic_read(&d->ld_ref));
-	LASSERT(t->ldt_device_nr > 0);
-	if (--t->ldt_device_nr == 0 && t->ldt_ops->ldto_stop != NULL)
-		t->ldt_ops->ldto_stop(t);
-}
-EXPORT_SYMBOL(lu_device_fini);
-
-/**
- * Initialize object \a o that is part of compound object \a h and was created
- * by device \a d.
- */
-int lu_object_init(struct lu_object *o, struct lu_object_header *h,
-		   struct lu_device *d)
-{
-	memset(o, 0, sizeof(*o));
-	o->lo_header = h;
-	o->lo_dev = d;
-	lu_device_get(d);
-	lu_ref_add_at(&d->ld_reference, &o->lo_dev_ref, "lu_object", o);
-	INIT_LIST_HEAD(&o->lo_linkage);
-
-	return 0;
-}
-EXPORT_SYMBOL(lu_object_init);
-
-/**
- * Finalize object and release its resources.
- */
-void lu_object_fini(struct lu_object *o)
-{
-	struct lu_device *dev = o->lo_dev;
-
-	LASSERT(list_empty(&o->lo_linkage));
-
-	if (dev != NULL) {
-		lu_ref_del_at(&dev->ld_reference, &o->lo_dev_ref,
-			      "lu_object", o);
-		lu_device_put(dev);
-		o->lo_dev = NULL;
-	}
-}
-EXPORT_SYMBOL(lu_object_fini);
-
-/**
- * Add object \a o as first layer of compound object \a h
- *
- * This is typically called by the ->ldo_object_alloc() method of top-level
- * device.
- */
-void lu_object_add_top(struct lu_object_header *h, struct lu_object *o)
-{
-	list_move(&o->lo_linkage, &h->loh_layers);
-}
-EXPORT_SYMBOL(lu_object_add_top);
-
-/**
- * Add object \a o as a layer of compound object, going after \a before.
- *
- * This is typically called by the ->ldo_object_alloc() method of \a
- * before->lo_dev.
- */
-void lu_object_add(struct lu_object *before, struct lu_object *o)
-{
-	list_move(&o->lo_linkage, &before->lo_linkage);
-}
-EXPORT_SYMBOL(lu_object_add);
-
-/**
- * Initialize compound object.
- */
-int lu_object_header_init(struct lu_object_header *h)
-{
-	memset(h, 0, sizeof(*h));
-	atomic_set(&h->loh_ref, 1);
-	INIT_HLIST_NODE(&h->loh_hash);
-	INIT_LIST_HEAD(&h->loh_lru);
-	INIT_LIST_HEAD(&h->loh_layers);
-	lu_ref_init(&h->loh_reference);
-	return 0;
-}
-EXPORT_SYMBOL(lu_object_header_init);
-
-/**
- * Finalize compound object.
- */
-void lu_object_header_fini(struct lu_object_header *h)
-{
-	LASSERT(list_empty(&h->loh_layers));
-	LASSERT(list_empty(&h->loh_lru));
-	LASSERT(hlist_unhashed(&h->loh_hash));
-	lu_ref_fini(&h->loh_reference);
-}
-EXPORT_SYMBOL(lu_object_header_fini);
-
-/**
- * Given a compound object, find its slice, corresponding to the device type
- * \a dtype.
- */
-struct lu_object *lu_object_locate(struct lu_object_header *h,
-				   const struct lu_device_type *dtype)
-{
-	struct lu_object *o;
-
-	list_for_each_entry(o, &h->loh_layers, lo_linkage) {
-		if (o->lo_dev->ld_type == dtype)
-			return o;
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(lu_object_locate);
-
-
-
-/**
- * Finalize and free devices in the device stack.
- *
- * Finalize device stack by purging object cache, and calling
- * lu_device_type_operations::ldto_device_fini() and
- * lu_device_type_operations::ldto_device_free() on all devices in the stack.
- */
-void lu_stack_fini(const struct lu_env *env, struct lu_device *top)
-{
-	struct lu_site   *site = top->ld_site;
-	struct lu_device *scan;
-	struct lu_device *next;
-
-	lu_site_purge(env, site, ~0);
-	for (scan = top; scan != NULL; scan = next) {
-		next = scan->ld_type->ldt_ops->ldto_device_fini(env, scan);
-		lu_ref_del(&scan->ld_reference, "lu-stack", &lu_site_init);
-		lu_device_put(scan);
-	}
-
-	/* purge again. */
-	lu_site_purge(env, site, ~0);
-
-	for (scan = top; scan != NULL; scan = next) {
-		const struct lu_device_type *ldt = scan->ld_type;
-		struct obd_type	     *type;
-
-		next = ldt->ldt_ops->ldto_device_free(env, scan);
-		type = ldt->ldt_obd_type;
-		if (type != NULL) {
-			type->typ_refcnt--;
-			class_put_type(type);
-		}
-	}
-}
-EXPORT_SYMBOL(lu_stack_fini);
-
-enum {
-	/**
-	 * Maximal number of tld slots.
-	 */
-	LU_CONTEXT_KEY_NR = 40
-};
-
-static struct lu_context_key *lu_keys[LU_CONTEXT_KEY_NR] = { NULL, };
-
-static DEFINE_SPINLOCK(lu_keys_guard);
-
-/**
- * Global counter incremented whenever key is registered, unregistered,
- * revived or quiesced. This is used to void unnecessary calls to
- * lu_context_refill(). No locking is provided, as initialization and shutdown
- * are supposed to be externally serialized.
- */
-static unsigned key_set_version;
-
-/**
- * Register new key.
- */
-int lu_context_key_register(struct lu_context_key *key)
-{
-	int result;
-	int i;
-
-	LASSERT(key->lct_init != NULL);
-	LASSERT(key->lct_fini != NULL);
-	LASSERT(key->lct_tags != 0);
-
-	result = -ENFILE;
-	spin_lock(&lu_keys_guard);
-	for (i = 0; i < ARRAY_SIZE(lu_keys); ++i) {
-		if (lu_keys[i] == NULL) {
-			key->lct_index = i;
-			atomic_set(&key->lct_used, 1);
-			lu_keys[i] = key;
-			lu_ref_init(&key->lct_reference);
-			result = 0;
-			++key_set_version;
-			break;
-		}
-	}
-	spin_unlock(&lu_keys_guard);
-	return result;
-}
-EXPORT_SYMBOL(lu_context_key_register);
-
-static void key_fini(struct lu_context *ctx, int index)
-{
-	if (ctx->lc_value != NULL && ctx->lc_value[index] != NULL) {
-		struct lu_context_key *key;
-
-		key = lu_keys[index];
-		LASSERT(key != NULL);
-		LASSERT(key->lct_fini != NULL);
-		LASSERT(atomic_read(&key->lct_used) > 1);
-
-		key->lct_fini(ctx, key, ctx->lc_value[index]);
-		lu_ref_del(&key->lct_reference, "ctx", ctx);
-		atomic_dec(&key->lct_used);
-
-		if ((ctx->lc_tags & LCT_NOREF) == 0) {
-#ifdef CONFIG_MODULE_UNLOAD
-			LINVRNT(module_refcount(key->lct_owner) > 0);
-#endif
-			module_put(key->lct_owner);
-		}
-		ctx->lc_value[index] = NULL;
-	}
-}
-
-/**
- * Deregister key.
- */
-void lu_context_key_degister(struct lu_context_key *key)
-{
-	LASSERT(atomic_read(&key->lct_used) >= 1);
-	LINVRNT(0 <= key->lct_index && key->lct_index < ARRAY_SIZE(lu_keys));
-
-	lu_context_key_quiesce(key);
-
-	++key_set_version;
-	spin_lock(&lu_keys_guard);
-	key_fini(&lu_shrink_env.le_ctx, key->lct_index);
-	if (lu_keys[key->lct_index]) {
-		lu_keys[key->lct_index] = NULL;
-		lu_ref_fini(&key->lct_reference);
-	}
-	spin_unlock(&lu_keys_guard);
-
-	LASSERTF(atomic_read(&key->lct_used) == 1,
-		 "key has instances: %d\n",
-		 atomic_read(&key->lct_used));
-}
-EXPORT_SYMBOL(lu_context_key_degister);
-
-/**
- * Register a number of keys. This has to be called after all keys have been
- * initialized by a call to LU_CONTEXT_KEY_INIT().
- */
-int lu_context_key_register_many(struct lu_context_key *k, ...)
-{
-	struct lu_context_key *key = k;
-	va_list args;
-	int result;
-
-	va_start(args, k);
-	do {
-		result = lu_context_key_register(key);
-		if (result)
-			break;
-		key = va_arg(args, struct lu_context_key *);
-	} while (key != NULL);
-	va_end(args);
-
-	if (result != 0) {
-		va_start(args, k);
-		while (k != key) {
-			lu_context_key_degister(k);
-			k = va_arg(args, struct lu_context_key *);
-		}
-		va_end(args);
-	}
-
-	return result;
-}
-EXPORT_SYMBOL(lu_context_key_register_many);
-
-/**
- * De-register a number of keys. This is a dual to
- * lu_context_key_register_many().
- */
-void lu_context_key_degister_many(struct lu_context_key *k, ...)
-{
-	va_list args;
-
-	va_start(args, k);
-	do {
-		lu_context_key_degister(k);
-		k = va_arg(args, struct lu_context_key*);
-	} while (k != NULL);
-	va_end(args);
-}
-EXPORT_SYMBOL(lu_context_key_degister_many);
-
-/**
- * Revive a number of keys.
- */
-void lu_context_key_revive_many(struct lu_context_key *k, ...)
-{
-	va_list args;
-
-	va_start(args, k);
-	do {
-		lu_context_key_revive(k);
-		k = va_arg(args, struct lu_context_key*);
-	} while (k != NULL);
-	va_end(args);
-}
-EXPORT_SYMBOL(lu_context_key_revive_many);
-
-/**
- * Quiescent a number of keys.
- */
-void lu_context_key_quiesce_many(struct lu_context_key *k, ...)
-{
-	va_list args;
-
-	va_start(args, k);
-	do {
-		lu_context_key_quiesce(k);
-		k = va_arg(args, struct lu_context_key*);
-	} while (k != NULL);
-	va_end(args);
-}
-EXPORT_SYMBOL(lu_context_key_quiesce_many);
-
-/**
- * Return value associated with key \a key in context \a ctx.
- */
-void *lu_context_key_get(const struct lu_context *ctx,
-			 const struct lu_context_key *key)
-{
-	LINVRNT(ctx->lc_state == LCS_ENTERED);
-	LINVRNT(0 <= key->lct_index && key->lct_index < ARRAY_SIZE(lu_keys));
-	LASSERT(lu_keys[key->lct_index] == key);
-	return ctx->lc_value[key->lct_index];
-}
-EXPORT_SYMBOL(lu_context_key_get);
-
-/**
- * List of remembered contexts. XXX document me.
- */
-static LIST_HEAD(lu_context_remembered);
-
-/**
- * Destroy \a key in all remembered contexts. This is used to destroy key
- * values in "shared" contexts (like service threads), when a module owning
- * the key is about to be unloaded.
- */
-void lu_context_key_quiesce(struct lu_context_key *key)
-{
-	struct lu_context *ctx;
-
-	if (!(key->lct_tags & LCT_QUIESCENT)) {
-		/*
-		 * XXX layering violation.
-		 */
-		key->lct_tags |= LCT_QUIESCENT;
-		/*
-		 * XXX memory barrier has to go here.
-		 */
-		spin_lock(&lu_keys_guard);
-		list_for_each_entry(ctx, &lu_context_remembered,
-					lc_remember)
-			key_fini(ctx, key->lct_index);
-		spin_unlock(&lu_keys_guard);
-		++key_set_version;
-	}
-}
-EXPORT_SYMBOL(lu_context_key_quiesce);
-
-void lu_context_key_revive(struct lu_context_key *key)
-{
-	key->lct_tags &= ~LCT_QUIESCENT;
-	++key_set_version;
-}
-EXPORT_SYMBOL(lu_context_key_revive);
-
-static void keys_fini(struct lu_context *ctx)
-{
-	int	i;
-
-	if (ctx->lc_value == NULL)
-		return;
-
-	for (i = 0; i < ARRAY_SIZE(lu_keys); ++i)
-		key_fini(ctx, i);
-
-	kfree(ctx->lc_value);
-	ctx->lc_value = NULL;
-}
-
-static int keys_fill(struct lu_context *ctx)
-{
-	int i;
-
-	LINVRNT(ctx->lc_value != NULL);
-	for (i = 0; i < ARRAY_SIZE(lu_keys); ++i) {
-		struct lu_context_key *key;
-
-		key = lu_keys[i];
-		if (ctx->lc_value[i] == NULL && key != NULL &&
-		    (key->lct_tags & ctx->lc_tags) &&
-		    /*
-		     * Don't create values for a LCT_QUIESCENT key, as this
-		     * will pin module owning a key.
-		     */
-		    !(key->lct_tags & LCT_QUIESCENT)) {
-			void *value;
-
-			LINVRNT(key->lct_init != NULL);
-			LINVRNT(key->lct_index == i);
-
-			value = key->lct_init(ctx, key);
-			if (IS_ERR(value))
-				return PTR_ERR(value);
-
-			if (!(ctx->lc_tags & LCT_NOREF))
-				try_module_get(key->lct_owner);
-			lu_ref_add_atomic(&key->lct_reference, "ctx", ctx);
-			atomic_inc(&key->lct_used);
-			/*
-			 * This is the only place in the code, where an
-			 * element of ctx->lc_value[] array is set to non-NULL
-			 * value.
-			 */
-			ctx->lc_value[i] = value;
-			if (key->lct_exit != NULL)
-				ctx->lc_tags |= LCT_HAS_EXIT;
-		}
-		ctx->lc_version = key_set_version;
-	}
-	return 0;
-}
-
-static int keys_init(struct lu_context *ctx)
-{
-	ctx->lc_value = kcalloc(ARRAY_SIZE(lu_keys), sizeof(ctx->lc_value[0]),
-				GFP_NOFS);
-	if (likely(ctx->lc_value != NULL))
-		return keys_fill(ctx);
-
-	return -ENOMEM;
-}
-
-/**
- * Initialize context data-structure. Create values for all keys.
- */
-int lu_context_init(struct lu_context *ctx, __u32 tags)
-{
-	int	rc;
-
-	memset(ctx, 0, sizeof(*ctx));
-	ctx->lc_state = LCS_INITIALIZED;
-	ctx->lc_tags = tags;
-	if (tags & LCT_REMEMBER) {
-		spin_lock(&lu_keys_guard);
-		list_add(&ctx->lc_remember, &lu_context_remembered);
-		spin_unlock(&lu_keys_guard);
-	} else {
-		INIT_LIST_HEAD(&ctx->lc_remember);
-	}
-
-	rc = keys_init(ctx);
-	if (rc != 0)
-		lu_context_fini(ctx);
-
-	return rc;
-}
-EXPORT_SYMBOL(lu_context_init);
-
-/**
- * Finalize context data-structure. Destroy key values.
- */
-void lu_context_fini(struct lu_context *ctx)
-{
-	LINVRNT(ctx->lc_state == LCS_INITIALIZED || ctx->lc_state == LCS_LEFT);
-	ctx->lc_state = LCS_FINALIZED;
-
-	if ((ctx->lc_tags & LCT_REMEMBER) == 0) {
-		LASSERT(list_empty(&ctx->lc_remember));
-		keys_fini(ctx);
-
-	} else { /* could race with key degister */
-		spin_lock(&lu_keys_guard);
-		keys_fini(ctx);
-		list_del_init(&ctx->lc_remember);
-		spin_unlock(&lu_keys_guard);
-	}
-}
-EXPORT_SYMBOL(lu_context_fini);
-
-/**
- * Called before entering context.
- */
-void lu_context_enter(struct lu_context *ctx)
-{
-	LINVRNT(ctx->lc_state == LCS_INITIALIZED || ctx->lc_state == LCS_LEFT);
-	ctx->lc_state = LCS_ENTERED;
-}
-EXPORT_SYMBOL(lu_context_enter);
-
-/**
- * Called after exiting from \a ctx
- */
-void lu_context_exit(struct lu_context *ctx)
-{
-	int i;
-
-	LINVRNT(ctx->lc_state == LCS_ENTERED);
-	ctx->lc_state = LCS_LEFT;
-	if (ctx->lc_tags & LCT_HAS_EXIT && ctx->lc_value != NULL) {
-		for (i = 0; i < ARRAY_SIZE(lu_keys); ++i) {
-			if (ctx->lc_value[i] != NULL) {
-				struct lu_context_key *key;
-
-				key = lu_keys[i];
-				LASSERT(key != NULL);
-				if (key->lct_exit != NULL)
-					key->lct_exit(ctx,
-						      key, ctx->lc_value[i]);
-			}
-		}
-	}
-}
-EXPORT_SYMBOL(lu_context_exit);
-
-/**
- * Allocate for context all missing keys that were registered after context
- * creation. key_set_version is only changed in rare cases when modules
- * are loaded and removed.
- */
-int lu_context_refill(struct lu_context *ctx)
-{
-	return likely(ctx->lc_version == key_set_version) ? 0 : keys_fill(ctx);
-}
-EXPORT_SYMBOL(lu_context_refill);
-
-/**
- * lu_ctx_tags/lu_ses_tags will be updated if there are new types of
- * obd being added. Currently, this is only used on client side, specifically
- * for echo device client, for other stack (like ptlrpc threads), context are
- * predefined when the lu_device type are registered, during the module probe
- * phase.
- */
-__u32 lu_context_tags_default = 0;
-__u32 lu_session_tags_default = 0;
-
-void lu_context_tags_update(__u32 tags)
-{
-	spin_lock(&lu_keys_guard);
-	lu_context_tags_default |= tags;
-	key_set_version++;
-	spin_unlock(&lu_keys_guard);
-}
-EXPORT_SYMBOL(lu_context_tags_update);
-
-void lu_context_tags_clear(__u32 tags)
-{
-	spin_lock(&lu_keys_guard);
-	lu_context_tags_default &= ~tags;
-	key_set_version++;
-	spin_unlock(&lu_keys_guard);
-}
-EXPORT_SYMBOL(lu_context_tags_clear);
-
-void lu_session_tags_update(__u32 tags)
-{
-	spin_lock(&lu_keys_guard);
-	lu_session_tags_default |= tags;
-	key_set_version++;
-	spin_unlock(&lu_keys_guard);
-}
-EXPORT_SYMBOL(lu_session_tags_update);
-
-void lu_session_tags_clear(__u32 tags)
-{
-	spin_lock(&lu_keys_guard);
-	lu_session_tags_default &= ~tags;
-	key_set_version++;
-	spin_unlock(&lu_keys_guard);
-}
-EXPORT_SYMBOL(lu_session_tags_clear);
-
-int lu_env_init(struct lu_env *env, __u32 tags)
-{
-	int result;
-
-	env->le_ses = NULL;
-	result = lu_context_init(&env->le_ctx, tags);
-	if (likely(result == 0))
-		lu_context_enter(&env->le_ctx);
-	return result;
-}
-EXPORT_SYMBOL(lu_env_init);
-
-void lu_env_fini(struct lu_env *env)
-{
-	lu_context_exit(&env->le_ctx);
-	lu_context_fini(&env->le_ctx);
-	env->le_ses = NULL;
-}
-EXPORT_SYMBOL(lu_env_fini);
-
-int lu_env_refill(struct lu_env *env)
-{
-	int result;
-
-	result = lu_context_refill(&env->le_ctx);
-	if (result == 0 && env->le_ses != NULL)
-		result = lu_context_refill(env->le_ses);
-	return result;
-}
-EXPORT_SYMBOL(lu_env_refill);
-
-/**
- * Currently, this API will only be used by echo client.
- * Because echo client and normal lustre client will share
- * same cl_env cache. So echo client needs to refresh
- * the env context after it get one from the cache, especially
- * when normal client and echo client co-exist in the same client.
- */
-int lu_env_refill_by_tags(struct lu_env *env, __u32 ctags,
-			  __u32 stags)
-{
-	if ((env->le_ctx.lc_tags & ctags) != ctags) {
-		env->le_ctx.lc_version = 0;
-		env->le_ctx.lc_tags |= ctags;
-	}
-
-	if (env->le_ses && (env->le_ses->lc_tags & stags) != stags) {
-		env->le_ses->lc_version = 0;
-		env->le_ses->lc_tags |= stags;
-	}
-
-	return lu_env_refill(env);
-}
-EXPORT_SYMBOL(lu_env_refill_by_tags);
-
-
-typedef struct lu_site_stats{
-	unsigned	lss_populated;
-	unsigned	lss_max_search;
-	unsigned	lss_total;
-	unsigned	lss_busy;
-} lu_site_stats_t;
-
-static void lu_site_stats_get(struct cfs_hash *hs,
-			      lu_site_stats_t *stats, int populated)
-{
-	struct cfs_hash_bd bd;
-	int	   i;
-
-	cfs_hash_for_each_bucket(hs, &bd, i) {
-		struct lu_site_bkt_data *bkt = cfs_hash_bd_extra_get(hs, &bd);
-		struct hlist_head	*hhead;
-
-		cfs_hash_bd_lock(hs, &bd, 1);
-		stats->lss_busy  += bkt->lsb_busy;
-		stats->lss_total += cfs_hash_bd_count_get(&bd);
-		stats->lss_max_search = max((int)stats->lss_max_search,
-					    cfs_hash_bd_depmax_get(&bd));
-		if (!populated) {
-			cfs_hash_bd_unlock(hs, &bd, 1);
-			continue;
-		}
-
-		cfs_hash_bd_for_each_hlist(hs, &bd, hhead) {
-			if (!hlist_empty(hhead))
-				stats->lss_populated++;
-		}
-		cfs_hash_bd_unlock(hs, &bd, 1);
-	}
-}
-
-
-/*
- * There exists a potential lock inversion deadlock scenario when using
- * Lustre on top of ZFS. This occurs between one of ZFS's
- * buf_hash_table.ht_lock's, and Lustre's lu_sites_guard lock. Essentially,
- * thread A will take the lu_sites_guard lock and sleep on the ht_lock,
- * while thread B will take the ht_lock and sleep on the lu_sites_guard
- * lock. Obviously neither thread will wake and drop their respective hold
- * on their lock.
- *
- * To prevent this from happening we must ensure the lu_sites_guard lock is
- * not taken while down this code path. ZFS reliably does not set the
- * __GFP_FS bit in its code paths, so this can be used to determine if it
- * is safe to take the lu_sites_guard lock.
- *
- * Ideally we should accurately return the remaining number of cached
- * objects without taking the  lu_sites_guard lock, but this is not
- * possible in the current implementation.
- */
-static unsigned long lu_cache_shrink_count(struct shrinker *sk,
-					   struct shrink_control *sc)
-{
-	lu_site_stats_t stats;
-	struct lu_site *s;
-	struct lu_site *tmp;
-	unsigned long cached = 0;
-
-	if (!(sc->gfp_mask & __GFP_FS))
-		return 0;
-
-	mutex_lock(&lu_sites_guard);
-	list_for_each_entry_safe(s, tmp, &lu_sites, ls_linkage) {
-		memset(&stats, 0, sizeof(stats));
-		lu_site_stats_get(s->ls_obj_hash, &stats, 0);
-		cached += stats.lss_total - stats.lss_busy;
-	}
-	mutex_unlock(&lu_sites_guard);
-
-	cached = (cached / 100) * sysctl_vfs_cache_pressure;
-	CDEBUG(D_INODE, "%ld objects cached\n", cached);
-	return cached;
-}
-
-static unsigned long lu_cache_shrink_scan(struct shrinker *sk,
-					  struct shrink_control *sc)
-{
-	struct lu_site *s;
-	struct lu_site *tmp;
-	unsigned long remain = sc->nr_to_scan, freed = 0;
-	LIST_HEAD(splice);
-
-	if (!(sc->gfp_mask & __GFP_FS))
-		/* We must not take the lu_sites_guard lock when
-		 * __GFP_FS is *not* set because of the deadlock
-		 * possibility detailed above. Additionally,
-		 * since we cannot determine the number of
-		 * objects in the cache without taking this
-		 * lock, we're in a particularly tough spot. As
-		 * a result, we'll just lie and say our cache is
-		 * empty. This _should_ be ok, as we can't
-		 * reclaim objects when __GFP_FS is *not* set
-		 * anyways.
-		 */
-		return SHRINK_STOP;
-
-	mutex_lock(&lu_sites_guard);
-	list_for_each_entry_safe(s, tmp, &lu_sites, ls_linkage) {
-		freed = lu_site_purge(&lu_shrink_env, s, remain);
-		remain -= freed;
-		/*
-		 * Move just shrunk site to the tail of site list to
-		 * assure shrinking fairness.
-		 */
-		list_move_tail(&s->ls_linkage, &splice);
-	}
-	list_splice(&splice, lu_sites.prev);
-	mutex_unlock(&lu_sites_guard);
-
-	return sc->nr_to_scan - remain;
-}
-
-/*
- * Debugging stuff.
- */
-
-/**
- * Environment to be used in debugger, contains all tags.
- */
-struct lu_env lu_debugging_env;
-
-/**
- * Debugging printer function using printk().
- */
-int lu_printk_printer(const struct lu_env *env,
-		      void *unused, const char *format, ...)
-{
-	va_list args;
-
-	va_start(args, format);
-	vprintk(format, args);
-	va_end(args);
-	return 0;
-}
-
-static struct shrinker lu_site_shrinker = {
-	.count_objects	= lu_cache_shrink_count,
-	.scan_objects	= lu_cache_shrink_scan,
-	.seeks 		= DEFAULT_SEEKS,
-};
-
-/**
- * Initialization of global lu_* data.
- */
-int lu_global_init(void)
-{
-	int result;
-
-	CDEBUG(D_INFO, "Lustre LU module (%p).\n", &lu_keys);
-
-	result = lu_ref_global_init();
-	if (result != 0)
-		return result;
-
-	LU_CONTEXT_KEY_INIT(&lu_global_key);
-	result = lu_context_key_register(&lu_global_key);
-	if (result != 0)
-		return result;
-
-	/*
-	 * At this level, we don't know what tags are needed, so allocate them
-	 * conservatively. This should not be too bad, because this
-	 * environment is global.
-	 */
-	mutex_lock(&lu_sites_guard);
-	result = lu_env_init(&lu_shrink_env, LCT_SHRINKER);
-	mutex_unlock(&lu_sites_guard);
-	if (result != 0)
-		return result;
-
-	/*
-	 * seeks estimation: 3 seeks to read a record from oi, one to read
-	 * inode, one for ea. Unfortunately setting this high value results in
-	 * lu_object/inode cache consuming all the memory.
-	 */
-	register_shrinker(&lu_site_shrinker);
-
-	return result;
-}
-
-/**
- * Dual to lu_global_init().
- */
-void lu_global_fini(void)
-{
-	unregister_shrinker(&lu_site_shrinker);
-	lu_context_key_degister(&lu_global_key);
-
-	/*
-	 * Tear shrinker environment down _after_ de-registering
-	 * lu_global_key, because the latter has a value in the former.
-	 */
-	mutex_lock(&lu_sites_guard);
-	lu_env_fini(&lu_shrink_env);
-	mutex_unlock(&lu_sites_guard);
-
-	lu_ref_global_fini();
-}
-
-static __u32 ls_stats_read(struct lprocfs_stats *stats, int idx)
-{
-	struct lprocfs_counter ret;
-
-	lprocfs_stats_collect(stats, idx, &ret);
-	return (__u32)ret.lc_count;
-}
-
-/**
- * Output site statistical counters into a buffer. Suitable for
- * lprocfs_rd_*()-style functions.
- */
-int lu_site_stats_print(const struct lu_site *s, struct seq_file *m)
-{
-	lu_site_stats_t stats;
-
-	memset(&stats, 0, sizeof(stats));
-	lu_site_stats_get(s->ls_obj_hash, &stats, 1);
-
-	seq_printf(m, "%d/%d %d/%d %d %d %d %d %d %d %d\n",
-		   stats.lss_busy,
-		   stats.lss_total,
-		   stats.lss_populated,
-		   CFS_HASH_NHLIST(s->ls_obj_hash),
-		   stats.lss_max_search,
-		   ls_stats_read(s->ls_stats, LU_SS_CREATED),
-		   ls_stats_read(s->ls_stats, LU_SS_CACHE_HIT),
-		   ls_stats_read(s->ls_stats, LU_SS_CACHE_MISS),
-		   ls_stats_read(s->ls_stats, LU_SS_CACHE_RACE),
-		   ls_stats_read(s->ls_stats, LU_SS_CACHE_DEATH_RACE),
-		   ls_stats_read(s->ls_stats, LU_SS_LRU_PURGED));
-	return 0;
-}
-EXPORT_SYMBOL(lu_site_stats_print);
-
-/**
- * Helper function to initialize a number of kmem slab caches at once.
- */
-int lu_kmem_init(struct lu_kmem_descr *caches)
-{
-	int result;
-	struct lu_kmem_descr *iter = caches;
-
-	for (result = 0; iter->ckd_cache != NULL; ++iter) {
-		*iter->ckd_cache = kmem_cache_create(iter->ckd_name,
-							iter->ckd_size,
-							0, 0, NULL);
-		if (*iter->ckd_cache == NULL) {
-			result = -ENOMEM;
-			/* free all previously allocated caches */
-			lu_kmem_fini(caches);
-			break;
-		}
-	}
-	return result;
-}
-EXPORT_SYMBOL(lu_kmem_init);
-
-/**
- * Helper function to finalize a number of kmem slab cached at once. Dual to
- * lu_kmem_init().
- */
-void lu_kmem_fini(struct lu_kmem_descr *caches)
-{
-	for (; caches->ckd_cache != NULL; ++caches) {
-		if (*caches->ckd_cache != NULL) {
-			kmem_cache_destroy(*caches->ckd_cache);
-			*caches->ckd_cache = NULL;
-		}
-	}
-}
-EXPORT_SYMBOL(lu_kmem_fini);
-
-/**
- * Temporary solution to be able to assign fid in ->do_create()
- * till we have fully-functional OST fids
- */
-void lu_object_assign_fid(const struct lu_env *env, struct lu_object *o,
-			  const struct lu_fid *fid)
-{
-	struct lu_site		*s = o->lo_dev->ld_site;
-	struct lu_fid		*old = &o->lo_header->loh_fid;
-	struct lu_site_bkt_data	*bkt;
-	struct lu_object	*shadow;
-	wait_queue_t		 waiter;
-	struct cfs_hash		*hs;
-	struct cfs_hash_bd	 bd;
-	__u64			 version = 0;
-
-	LASSERT(fid_is_zero(old));
-
-	hs = s->ls_obj_hash;
-	cfs_hash_bd_get_and_lock(hs, (void *)fid, &bd, 1);
-	shadow = htable_lookup(s, &bd, fid, &waiter, &version);
-	/* supposed to be unique */
-	LASSERT(IS_ERR(shadow) && PTR_ERR(shadow) == -ENOENT);
-	*old = *fid;
-	bkt = cfs_hash_bd_extra_get(hs, &bd);
-	cfs_hash_bd_add_locked(hs, &bd, &o->lo_header->loh_hash);
-	bkt->lsb_busy++;
-	cfs_hash_bd_unlock(hs, &bd, 1);
-}
-EXPORT_SYMBOL(lu_object_assign_fid);
-
-/**
- * allocates object with 0 (non-assigned) fid
- * XXX: temporary solution to be able to assign fid in ->do_create()
- *      till we have fully-functional OST fids
- */
-struct lu_object *lu_object_anon(const struct lu_env *env,
-				 struct lu_device *dev,
-				 const struct lu_object_conf *conf)
-{
-	struct lu_fid     fid;
-	struct lu_object *o;
-
-	fid_zero(&fid);
-	o = lu_object_alloc(env, dev, &fid, conf);
-
-	return o;
-}
-EXPORT_SYMBOL(lu_object_anon);
-
-struct lu_buf LU_BUF_NULL = {
-	.lb_buf = NULL,
-	.lb_len = 0
-};
-EXPORT_SYMBOL(LU_BUF_NULL);
-
-void lu_buf_free(struct lu_buf *buf)
-{
-	LASSERT(buf);
-	if (buf->lb_buf) {
-		LASSERT(buf->lb_len > 0);
-		kvfree(buf->lb_buf);
-		buf->lb_buf = NULL;
-		buf->lb_len = 0;
-	}
-}
-EXPORT_SYMBOL(lu_buf_free);
-
-void lu_buf_alloc(struct lu_buf *buf, int size)
-{
-	LASSERT(buf);
-	LASSERT(buf->lb_buf == NULL);
-	LASSERT(buf->lb_len == 0);
-	buf->lb_buf = libcfs_kvzalloc(size, GFP_NOFS);
-	if (likely(buf->lb_buf))
-		buf->lb_len = size;
-}
-EXPORT_SYMBOL(lu_buf_alloc);
-
-void lu_buf_realloc(struct lu_buf *buf, int size)
-{
-	lu_buf_free(buf);
-	lu_buf_alloc(buf, size);
-}
-EXPORT_SYMBOL(lu_buf_realloc);
-
-struct lu_buf *lu_buf_check_and_alloc(struct lu_buf *buf, int len)
-{
-	if (buf->lb_buf == NULL && buf->lb_len == 0)
-		lu_buf_alloc(buf, len);
-
-	if ((len > buf->lb_len) && (buf->lb_buf != NULL))
-		lu_buf_realloc(buf, len);
-
-	return buf;
-}
-EXPORT_SYMBOL(lu_buf_check_and_alloc);
-
-/**
- * Increase the size of the \a buf.
- * preserves old data in buffer
- * old buffer remains unchanged on error
- * \retval 0 or -ENOMEM
- */
-int lu_buf_check_and_grow(struct lu_buf *buf, int len)
-{
-	char *ptr;
-
-	if (len <= buf->lb_len)
-		return 0;
-
-	ptr = libcfs_kvzalloc(len, GFP_NOFS);
-	if (ptr == NULL)
-		return -ENOMEM;
-
-	/* Free the old buf */
-	if (buf->lb_buf != NULL) {
-		memcpy(ptr, buf->lb_buf, buf->lb_len);
-		kvfree(buf->lb_buf);
-	}
-
-	buf->lb_buf = ptr;
-	buf->lb_len = len;
-	return 0;
-}
-EXPORT_SYMBOL(lu_buf_check_and_grow);
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_ref.c b/drivers/staging/lustre/lustre/obdclass/lu_ref.c
deleted file mode 100644
index 993697b660f6..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/lu_ref.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/lu_ref.c
- *
- * Lustre reference.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd.h"
-#include "../include/obd_class.h"
-#include "../include/obd_support.h"
-#include "../include/lu_ref.h"
diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
deleted file mode 100644
index 35a94a8f4fd3..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/lustre_handles.c
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../include/obd_support.h"
-#include "../include/lustre_handles.h"
-#include "../include/lustre_lib.h"
-
-
-static __u64 handle_base;
-#define HANDLE_INCR 7
-static spinlock_t handle_base_lock;
-
-static struct handle_bucket {
-	spinlock_t	lock;
-	struct list_head	head;
-} *handle_hash;
-
-#define HANDLE_HASH_SIZE (1 << 16)
-#define HANDLE_HASH_MASK (HANDLE_HASH_SIZE - 1)
-
-/*
- * Generate a unique 64bit cookie (hash) for a handle and insert it into
- * global (per-node) hash-table.
- */
-void class_handle_hash(struct portals_handle *h,
-		       struct portals_handle_ops *ops)
-{
-	struct handle_bucket *bucket;
-
-	LASSERT(h != NULL);
-	LASSERT(list_empty(&h->h_link));
-
-	/*
-	 * This is fast, but simplistic cookie generation algorithm, it will
-	 * need a re-do at some point in the future for security.
-	 */
-	spin_lock(&handle_base_lock);
-	handle_base += HANDLE_INCR;
-
-	if (unlikely(handle_base == 0)) {
-		/*
-		 * Cookie of zero is "dangerous", because in many places it's
-		 * assumed that 0 means "unassigned" handle, not bound to any
-		 * object.
-		 */
-		CWARN("The universe has been exhausted: cookie wrap-around.\n");
-		handle_base += HANDLE_INCR;
-	}
-	h->h_cookie = handle_base;
-	spin_unlock(&handle_base_lock);
-
-	h->h_ops = ops;
-	spin_lock_init(&h->h_lock);
-
-	bucket = &handle_hash[h->h_cookie & HANDLE_HASH_MASK];
-	spin_lock(&bucket->lock);
-	list_add_rcu(&h->h_link, &bucket->head);
-	h->h_in = 1;
-	spin_unlock(&bucket->lock);
-
-	CDEBUG(D_INFO, "added object %p with handle %#llx to hash\n",
-	       h, h->h_cookie);
-}
-EXPORT_SYMBOL(class_handle_hash);
-
-static void class_handle_unhash_nolock(struct portals_handle *h)
-{
-	if (list_empty(&h->h_link)) {
-		CERROR("removing an already-removed handle (%#llx)\n",
-		       h->h_cookie);
-		return;
-	}
-
-	CDEBUG(D_INFO, "removing object %p with handle %#llx from hash\n",
-	       h, h->h_cookie);
-
-	spin_lock(&h->h_lock);
-	if (h->h_in == 0) {
-		spin_unlock(&h->h_lock);
-		return;
-	}
-	h->h_in = 0;
-	spin_unlock(&h->h_lock);
-	list_del_rcu(&h->h_link);
-}
-
-void class_handle_unhash(struct portals_handle *h)
-{
-	struct handle_bucket *bucket;
-	bucket = handle_hash + (h->h_cookie & HANDLE_HASH_MASK);
-
-	spin_lock(&bucket->lock);
-	class_handle_unhash_nolock(h);
-	spin_unlock(&bucket->lock);
-}
-EXPORT_SYMBOL(class_handle_unhash);
-
-void class_handle_hash_back(struct portals_handle *h)
-{
-	struct handle_bucket *bucket;
-
-	bucket = handle_hash + (h->h_cookie & HANDLE_HASH_MASK);
-
-	spin_lock(&bucket->lock);
-	list_add_rcu(&h->h_link, &bucket->head);
-	h->h_in = 1;
-	spin_unlock(&bucket->lock);
-}
-EXPORT_SYMBOL(class_handle_hash_back);
-
-void *class_handle2object(__u64 cookie)
-{
-	struct handle_bucket *bucket;
-	struct portals_handle *h;
-	void *retval = NULL;
-
-	LASSERT(handle_hash != NULL);
-
-	/* Be careful when you want to change this code. See the
-	 * rcu_read_lock() definition on top this file. - jxiong */
-	bucket = handle_hash + (cookie & HANDLE_HASH_MASK);
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(h, &bucket->head, h_link) {
-		if (h->h_cookie != cookie)
-			continue;
-
-		spin_lock(&h->h_lock);
-		if (likely(h->h_in != 0)) {
-			h->h_ops->hop_addref(h);
-			retval = h;
-		}
-		spin_unlock(&h->h_lock);
-		break;
-	}
-	rcu_read_unlock();
-
-	return retval;
-}
-EXPORT_SYMBOL(class_handle2object);
-
-void class_handle_free_cb(struct rcu_head *rcu)
-{
-	struct portals_handle *h = RCU2HANDLE(rcu);
-	void *ptr = (void *)(unsigned long)h->h_cookie;
-
-	if (h->h_ops->hop_free != NULL)
-		h->h_ops->hop_free(ptr, h->h_size);
-	else
-		kfree(ptr);
-}
-EXPORT_SYMBOL(class_handle_free_cb);
-
-int class_handle_init(void)
-{
-	struct handle_bucket *bucket;
-	struct timeval tv;
-	int seed[2];
-
-	LASSERT(handle_hash == NULL);
-
-	handle_hash = libcfs_kvzalloc(sizeof(*bucket) * HANDLE_HASH_SIZE,
-				      GFP_NOFS);
-	if (handle_hash == NULL)
-		return -ENOMEM;
-
-	spin_lock_init(&handle_base_lock);
-	for (bucket = handle_hash + HANDLE_HASH_SIZE - 1; bucket >= handle_hash;
-	     bucket--) {
-		INIT_LIST_HEAD(&bucket->head);
-		spin_lock_init(&bucket->lock);
-	}
-
-	/** bug 21430: add randomness to the initial base */
-	cfs_get_random_bytes(seed, sizeof(seed));
-	do_gettimeofday(&tv);
-	cfs_srand(tv.tv_sec ^ seed[0], tv.tv_usec ^ seed[1]);
-
-	cfs_get_random_bytes(&handle_base, sizeof(handle_base));
-	LASSERT(handle_base != 0ULL);
-
-	return 0;
-}
-
-static int cleanup_all_handles(void)
-{
-	int rc;
-	int i;
-
-	for (rc = i = 0; i < HANDLE_HASH_SIZE; i++) {
-		struct portals_handle *h;
-
-		spin_lock(&handle_hash[i].lock);
-		list_for_each_entry_rcu(h, &(handle_hash[i].head), h_link) {
-			CERROR("force clean handle %#llx addr %p ops %p\n",
-			       h->h_cookie, h, h->h_ops);
-
-			class_handle_unhash_nolock(h);
-			rc++;
-		}
-		spin_unlock(&handle_hash[i].lock);
-	}
-
-	return rc;
-}
-
-void class_handle_cleanup(void)
-{
-	int count;
-	LASSERT(handle_hash != NULL);
-
-	count = cleanup_all_handles();
-
-	kvfree(handle_hash);
-	handle_hash = NULL;
-
-	if (count != 0)
-		CERROR("handle_count at cleanup: %d\n", count);
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
deleted file mode 100644
index d6184f821cd0..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_RPC
-
-#include "../include/obd.h"
-#include "../include/obd_support.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_lib.h"
-#include "../include/lustre_ha.h"
-#include "../include/lustre_net.h"
-#include "../include/lprocfs_status.h"
-
-#define NIDS_MAX	32
-
-struct uuid_nid_data {
-	struct list_head       un_list;
-	struct obd_uuid  un_uuid;
-	int	      un_nid_count;
-	lnet_nid_t       un_nids[NIDS_MAX];
-};
-
-/* FIXME: This should probably become more elegant than a global linked list */
-static struct list_head	g_uuid_list;
-static spinlock_t	g_uuid_lock;
-
-void class_init_uuidlist(void)
-{
-	INIT_LIST_HEAD(&g_uuid_list);
-	spin_lock_init(&g_uuid_lock);
-}
-
-void class_exit_uuidlist(void)
-{
-	/* delete all */
-	class_del_uuid(NULL);
-}
-
-int lustre_uuid_to_peer(const char *uuid, lnet_nid_t *peer_nid, int index)
-{
-	struct uuid_nid_data *data;
-	struct obd_uuid tmp;
-	int rc = -ENOENT;
-
-	obd_str2uuid(&tmp, uuid);
-	spin_lock(&g_uuid_lock);
-	list_for_each_entry(data, &g_uuid_list, un_list) {
-		if (obd_uuid_equals(&data->un_uuid, &tmp)) {
-			if (index >= data->un_nid_count)
-				break;
-
-			rc = 0;
-			*peer_nid = data->un_nids[index];
-			break;
-		}
-	}
-	spin_unlock(&g_uuid_lock);
-	return rc;
-}
-EXPORT_SYMBOL(lustre_uuid_to_peer);
-
-/* Add a nid to a niduuid.  Multiple nids can be added to a single uuid;
-   LNET will choose the best one. */
-int class_add_uuid(const char *uuid, __u64 nid)
-{
-	struct uuid_nid_data *data, *entry;
-	int found = 0;
-
-	LASSERT(nid != 0);  /* valid newconfig NID is never zero */
-
-	if (strlen(uuid) > UUID_MAX - 1)
-		return -EOVERFLOW;
-
-	data = kzalloc(sizeof(*data), GFP_NOFS);
-	if (!data)
-		return -ENOMEM;
-
-	obd_str2uuid(&data->un_uuid, uuid);
-	data->un_nids[0] = nid;
-	data->un_nid_count = 1;
-
-	spin_lock(&g_uuid_lock);
-	list_for_each_entry(entry, &g_uuid_list, un_list) {
-		if (obd_uuid_equals(&entry->un_uuid, &data->un_uuid)) {
-			int i;
-
-			found = 1;
-			for (i = 0; i < entry->un_nid_count; i++)
-				if (nid == entry->un_nids[i])
-					break;
-
-			if (i == entry->un_nid_count) {
-				LASSERT(entry->un_nid_count < NIDS_MAX);
-				entry->un_nids[entry->un_nid_count++] = nid;
-			}
-			break;
-		}
-	}
-	if (!found)
-		list_add(&data->un_list, &g_uuid_list);
-	spin_unlock(&g_uuid_lock);
-
-	if (found) {
-		CDEBUG(D_INFO, "found uuid %s %s cnt=%d\n", uuid,
-		       libcfs_nid2str(nid), entry->un_nid_count);
-		kfree(data);
-	} else {
-		CDEBUG(D_INFO, "add uuid %s %s\n", uuid, libcfs_nid2str(nid));
-	}
-	return 0;
-}
-EXPORT_SYMBOL(class_add_uuid);
-
-/* Delete the nids for one uuid if specified, otherwise delete all */
-int class_del_uuid(const char *uuid)
-{
-	LIST_HEAD(deathrow);
-	struct uuid_nid_data *data;
-
-	spin_lock(&g_uuid_lock);
-	if (uuid != NULL) {
-		struct obd_uuid tmp;
-
-		obd_str2uuid(&tmp, uuid);
-		list_for_each_entry(data, &g_uuid_list, un_list) {
-			if (obd_uuid_equals(&data->un_uuid, &tmp)) {
-				list_move(&data->un_list, &deathrow);
-				break;
-			}
-		}
-	} else
-		list_splice_init(&g_uuid_list, &deathrow);
-	spin_unlock(&g_uuid_lock);
-
-	if (uuid != NULL && list_empty(&deathrow)) {
-		CDEBUG(D_INFO, "Try to delete a non-existent uuid %s\n", uuid);
-		return -EINVAL;
-	}
-
-	while (!list_empty(&deathrow)) {
-		data = list_entry(deathrow.next, struct uuid_nid_data,
-				      un_list);
-		list_del(&data->un_list);
-
-		CDEBUG(D_INFO, "del uuid %s %s/%d\n",
-		       obd_uuid2str(&data->un_uuid),
-		       libcfs_nid2str(data->un_nids[0]),
-		       data->un_nid_count);
-
-		kfree(data);
-	}
-
-	return 0;
-}
-
-/* check if @nid exists in nid list of @uuid */
-int class_check_uuid(struct obd_uuid *uuid, __u64 nid)
-{
-	struct uuid_nid_data *entry;
-	int found = 0;
-
-	CDEBUG(D_INFO, "check if uuid %s has %s.\n",
-	       obd_uuid2str(uuid), libcfs_nid2str(nid));
-
-	spin_lock(&g_uuid_lock);
-	list_for_each_entry(entry, &g_uuid_list, un_list) {
-		int i;
-
-		if (!obd_uuid_equals(&entry->un_uuid, uuid))
-			continue;
-
-		/* found the uuid, check if it has @nid */
-		for (i = 0; i < entry->un_nid_count; i++) {
-			if (entry->un_nids[i] == nid) {
-				found = 1;
-				break;
-			}
-		}
-		break;
-	}
-	spin_unlock(&g_uuid_lock);
-	return found;
-}
-EXPORT_SYMBOL(class_check_uuid);
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
deleted file mode 100644
index 93805ac93c5a..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
+++ /dev/null
@@ -1,1861 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/obd_config.c
- *
- * Config API
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-#include "../include/obd_class.h"
-#include <linux/string.h>
-#include "../include/lustre_log.h"
-#include "../include/lprocfs_status.h"
-#include "../include/lustre_param.h"
-
-#include "llog_internal.h"
-
-static cfs_hash_ops_t uuid_hash_ops;
-static cfs_hash_ops_t nid_hash_ops;
-
-/*********** string parsing utils *********/
-
-/* returns 0 if we find this key in the buffer, else 1 */
-int class_find_param(char *buf, char *key, char **valp)
-{
-	char *ptr;
-
-	if (!buf)
-		return 1;
-
-	ptr = strstr(buf, key);
-	if (ptr == NULL)
-		return 1;
-
-	if (valp)
-		*valp = ptr + strlen(key);
-
-	return 0;
-}
-EXPORT_SYMBOL(class_find_param);
-
-/**
- * Check whether the proc parameter \a param is an old parameter or not from
- * the array \a ptr which contains the mapping from old parameters to new ones.
- * If it's an old one, then return the pointer to the cfg_interop_param struc-
- * ture which contains both the old and new parameters.
- *
- * \param param			proc parameter
- * \param ptr			an array which contains the mapping from
- *				old parameters to new ones
- *
- * \retval valid-pointer	pointer to the cfg_interop_param structure
- *				which contains the old and new parameters
- * \retval NULL			\a param or \a ptr is NULL,
- *				or \a param is not an old parameter
- */
-struct cfg_interop_param *class_find_old_param(const char *param,
-					       struct cfg_interop_param *ptr)
-{
-	char *value = NULL;
-	int   name_len = 0;
-
-	if (param == NULL || ptr == NULL)
-		return NULL;
-
-	value = strchr(param, '=');
-	if (value == NULL)
-		name_len = strlen(param);
-	else
-		name_len = value - param;
-
-	while (ptr->old_param != NULL) {
-		if (strncmp(param, ptr->old_param, name_len) == 0 &&
-		    name_len == strlen(ptr->old_param))
-			return ptr;
-		ptr++;
-	}
-
-	return NULL;
-}
-EXPORT_SYMBOL(class_find_old_param);
-
-/**
- * Finds a parameter in \a params and copies it to \a copy.
- *
- * Leading spaces are skipped. Next space or end of string is the
- * parameter terminator with the exception that spaces inside single or double
- * quotes get included into a parameter. The parameter is copied into \a copy
- * which has to be allocated big enough by a caller, quotes are stripped in
- * the copy and the copy is terminated by 0.
- *
- * On return \a params is set to next parameter or to NULL if last
- * parameter is returned.
- *
- * \retval 0 if parameter is returned in \a copy
- * \retval 1 otherwise
- * \retval -EINVAL if unbalanced quota is found
- */
-int class_get_next_param(char **params, char *copy)
-{
-	char *q1, *q2, *str;
-	int len;
-
-	str = *params;
-	while (*str == ' ')
-		str++;
-
-	if (*str == '\0') {
-		*params = NULL;
-		return 1;
-	}
-
-	while (1) {
-		q1 = strpbrk(str, " '\"");
-		if (q1 == NULL) {
-			len = strlen(str);
-			memcpy(copy, str, len);
-			copy[len] = '\0';
-			*params = NULL;
-			return 0;
-		}
-		len = q1 - str;
-		if (*q1 == ' ') {
-			memcpy(copy, str, len);
-			copy[len] = '\0';
-			*params = str + len;
-			return 0;
-		}
-
-		memcpy(copy, str, len);
-		copy += len;
-
-		/* search for the matching closing quote */
-		str = q1 + 1;
-		q2 = strchr(str, *q1);
-		if (q2 == NULL) {
-			CERROR("Unbalanced quota in parameters: \"%s\"\n",
-			       *params);
-			return -EINVAL;
-		}
-		len = q2 - str;
-		memcpy(copy, str, len);
-		copy += len;
-		str = q2 + 1;
-	}
-	return 1;
-}
-EXPORT_SYMBOL(class_get_next_param);
-
-/* returns 0 if this is the first key in the buffer, else 1.
-   valp points to first char after key. */
-int class_match_param(char *buf, char *key, char **valp)
-{
-	if (!buf)
-		return 1;
-
-	if (memcmp(buf, key, strlen(key)) != 0)
-		return 1;
-
-	if (valp)
-		*valp = buf + strlen(key);
-
-	return 0;
-}
-EXPORT_SYMBOL(class_match_param);
-
-static int parse_nid(char *buf, void *value, int quiet)
-{
-	lnet_nid_t *nid = (lnet_nid_t *)value;
-
-	*nid = libcfs_str2nid(buf);
-	if (*nid != LNET_NID_ANY)
-		return 0;
-
-	if (!quiet)
-		LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf);
-	return -EINVAL;
-}
-
-static int parse_net(char *buf, void *value)
-{
-	__u32 *net = (__u32 *)value;
-
-	*net = libcfs_str2net(buf);
-	CDEBUG(D_INFO, "Net %s\n", libcfs_net2str(*net));
-	return 0;
-}
-
-enum {
-	CLASS_PARSE_NID = 1,
-	CLASS_PARSE_NET,
-};
-
-/* 0 is good nid,
-   1 not found
-   < 0 error
-   endh is set to next separator */
-static int class_parse_value(char *buf, int opc, void *value, char **endh,
-			     int quiet)
-{
-	char *endp;
-	char  tmp;
-	int   rc = 0;
-
-	if (!buf)
-		return 1;
-	while (*buf == ',' || *buf == ':')
-		buf++;
-	if (*buf == ' ' || *buf == '/' || *buf == '\0')
-		return 1;
-
-	/* nid separators or end of nids */
-	endp = strpbrk(buf, ",: /");
-	if (endp == NULL)
-		endp = buf + strlen(buf);
-
-	tmp = *endp;
-	*endp = '\0';
-	switch (opc) {
-	default:
-		LBUG();
-	case CLASS_PARSE_NID:
-		rc = parse_nid(buf, value, quiet);
-		break;
-	case CLASS_PARSE_NET:
-		rc = parse_net(buf, value);
-		break;
-	}
-	*endp = tmp;
-	if (rc != 0)
-		return rc;
-	if (endh)
-		*endh = endp;
-	return 0;
-}
-
-int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh)
-{
-	return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 0);
-}
-EXPORT_SYMBOL(class_parse_nid);
-
-int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh)
-{
-	return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 1);
-}
-EXPORT_SYMBOL(class_parse_nid_quiet);
-
-int class_parse_net(char *buf, __u32 *net, char **endh)
-{
-	return class_parse_value(buf, CLASS_PARSE_NET, (void *)net, endh, 0);
-}
-EXPORT_SYMBOL(class_parse_net);
-
-/* 1 param contains key and match
- * 0 param contains key and not match
- * -1 param does not contain key
- */
-int class_match_nid(char *buf, char *key, lnet_nid_t nid)
-{
-	lnet_nid_t tmp;
-	int   rc = -1;
-
-	while (class_find_param(buf, key, &buf) == 0) {
-		/* please restrict to the nids pertaining to
-		 * the specified nids */
-		while (class_parse_nid(buf, &tmp, &buf) == 0) {
-			if (tmp == nid)
-				return 1;
-		}
-		rc = 0;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(class_match_nid);
-
-int class_match_net(char *buf, char *key, __u32 net)
-{
-	__u32 tmp;
-	int   rc = -1;
-
-	while (class_find_param(buf, key, &buf) == 0) {
-		/* please restrict to the nids pertaining to
-		 * the specified networks */
-		while (class_parse_net(buf, &tmp, &buf) == 0) {
-			if (tmp == net)
-				return 1;
-		}
-		rc = 0;
-	}
-	return rc;
-}
-EXPORT_SYMBOL(class_match_net);
-
-/********************** class fns **********************/
-
-/**
- * Create a new obd device and set the type, name and uuid.  If successful,
- * the new device can be accessed by either name or uuid.
- */
-int class_attach(struct lustre_cfg *lcfg)
-{
-	struct obd_device *obd = NULL;
-	char *typename, *name, *uuid;
-	int rc, len;
-
-	if (!LUSTRE_CFG_BUFLEN(lcfg, 1)) {
-		CERROR("No type passed!\n");
-		return -EINVAL;
-	}
-	typename = lustre_cfg_string(lcfg, 1);
-
-	if (!LUSTRE_CFG_BUFLEN(lcfg, 0)) {
-		CERROR("No name passed!\n");
-		return -EINVAL;
-	}
-	name = lustre_cfg_string(lcfg, 0);
-
-	if (!LUSTRE_CFG_BUFLEN(lcfg, 2)) {
-		CERROR("No UUID passed!\n");
-		return -EINVAL;
-	}
-	uuid = lustre_cfg_string(lcfg, 2);
-
-	CDEBUG(D_IOCTL, "attach type %s name: %s uuid: %s\n",
-	       MKSTR(typename), MKSTR(name), MKSTR(uuid));
-
-	obd = class_newdev(typename, name);
-	if (IS_ERR(obd)) {
-		/* Already exists or out of obds */
-		rc = PTR_ERR(obd);
-		obd = NULL;
-		CERROR("Cannot create device %s of type %s : %d\n",
-		       name, typename, rc);
-		goto out;
-	}
-	LASSERTF(obd != NULL, "Cannot get obd device %s of type %s\n",
-		 name, typename);
-	LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
-		 "obd %p obd_magic %08X != %08X\n",
-		 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
-	LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0,
-		 "%p obd_name %s != %s\n", obd, obd->obd_name, name);
-
-	rwlock_init(&obd->obd_pool_lock);
-	obd->obd_pool_limit = 0;
-	obd->obd_pool_slv = 0;
-
-	INIT_LIST_HEAD(&obd->obd_exports);
-	INIT_LIST_HEAD(&obd->obd_unlinked_exports);
-	INIT_LIST_HEAD(&obd->obd_delayed_exports);
-	INIT_LIST_HEAD(&obd->obd_exports_timed);
-	spin_lock_init(&obd->obd_nid_lock);
-	spin_lock_init(&obd->obd_dev_lock);
-	mutex_init(&obd->obd_dev_mutex);
-	spin_lock_init(&obd->obd_osfs_lock);
-	/* obd->obd_osfs_age must be set to a value in the distant
-	 * past to guarantee a fresh statfs is fetched on mount. */
-	obd->obd_osfs_age = cfs_time_shift_64(-1000);
-
-	/* XXX belongs in setup not attach  */
-	init_rwsem(&obd->obd_observer_link_sem);
-	/* recovery data */
-	cfs_init_timer(&obd->obd_recovery_timer);
-	spin_lock_init(&obd->obd_recovery_task_lock);
-	init_waitqueue_head(&obd->obd_next_transno_waitq);
-	init_waitqueue_head(&obd->obd_evict_inprogress_waitq);
-	INIT_LIST_HEAD(&obd->obd_req_replay_queue);
-	INIT_LIST_HEAD(&obd->obd_lock_replay_queue);
-	INIT_LIST_HEAD(&obd->obd_final_req_queue);
-	INIT_LIST_HEAD(&obd->obd_evict_list);
-
-	llog_group_init(&obd->obd_olg, FID_SEQ_LLOG);
-
-	obd->obd_conn_inprogress = 0;
-
-	len = strlen(uuid);
-	if (len >= sizeof(obd->obd_uuid)) {
-		CERROR("uuid must be < %d bytes long\n",
-		       (int)sizeof(obd->obd_uuid));
-		rc = -EINVAL;
-		goto out;
-	}
-	memcpy(obd->obd_uuid.uuid, uuid, len);
-
-	/* do the attach */
-	if (OBP(obd, attach)) {
-		rc = OBP(obd, attach)(obd, sizeof(*lcfg), lcfg);
-		if (rc) {
-			rc = -EINVAL;
-			goto out;
-		}
-	}
-
-	/* Detach drops this */
-	spin_lock(&obd->obd_dev_lock);
-	atomic_set(&obd->obd_refcount, 1);
-	spin_unlock(&obd->obd_dev_lock);
-	lu_ref_init(&obd->obd_reference);
-	lu_ref_add(&obd->obd_reference, "attach", obd);
-
-	obd->obd_attached = 1;
-	CDEBUG(D_IOCTL, "OBD: dev %d attached type %s with refcount %d\n",
-	       obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
-	return 0;
- out:
-	if (obd != NULL) {
-		class_release_dev(obd);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(class_attach);
-
-/** Create hashes, self-export, and call type-specific setup.
- * Setup is effectively the "start this obd" call.
- */
-int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	int err = 0;
-	struct obd_export *exp;
-
-	LASSERT(obd != NULL);
-	LASSERTF(obd == class_num2obd(obd->obd_minor),
-		 "obd %p != obd_devs[%d] %p\n",
-		 obd, obd->obd_minor, class_num2obd(obd->obd_minor));
-	LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
-		 "obd %p obd_magic %08x != %08x\n",
-		 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
-
-	/* have we attached a type to this device? */
-	if (!obd->obd_attached) {
-		CERROR("Device %d not attached\n", obd->obd_minor);
-		return -ENODEV;
-	}
-
-	if (obd->obd_set_up) {
-		CERROR("Device %d already setup (type %s)\n",
-		       obd->obd_minor, obd->obd_type->typ_name);
-		return -EEXIST;
-	}
-
-	/* is someone else setting us up right now? (attach inits spinlock) */
-	spin_lock(&obd->obd_dev_lock);
-	if (obd->obd_starting) {
-		spin_unlock(&obd->obd_dev_lock);
-		CERROR("Device %d setup in progress (type %s)\n",
-		       obd->obd_minor, obd->obd_type->typ_name);
-		return -EEXIST;
-	}
-	/* just leave this on forever.  I can't use obd_set_up here because
-	   other fns check that status, and we're not actually set up yet. */
-	obd->obd_starting = 1;
-	obd->obd_uuid_hash = NULL;
-	obd->obd_nid_hash = NULL;
-	spin_unlock(&obd->obd_dev_lock);
-
-	/* create an uuid-export lustre hash */
-	obd->obd_uuid_hash = cfs_hash_create("UUID_HASH",
-					     HASH_UUID_CUR_BITS,
-					     HASH_UUID_MAX_BITS,
-					     HASH_UUID_BKT_BITS, 0,
-					     CFS_HASH_MIN_THETA,
-					     CFS_HASH_MAX_THETA,
-					     &uuid_hash_ops, CFS_HASH_DEFAULT);
-	if (!obd->obd_uuid_hash) {
-		err = -ENOMEM;
-		goto err_hash;
-	}
-
-	/* create a nid-export lustre hash */
-	obd->obd_nid_hash = cfs_hash_create("NID_HASH",
-					    HASH_NID_CUR_BITS,
-					    HASH_NID_MAX_BITS,
-					    HASH_NID_BKT_BITS, 0,
-					    CFS_HASH_MIN_THETA,
-					    CFS_HASH_MAX_THETA,
-					    &nid_hash_ops, CFS_HASH_DEFAULT);
-	if (!obd->obd_nid_hash) {
-		err = -ENOMEM;
-		goto err_hash;
-	}
-
-	exp = class_new_export(obd, &obd->obd_uuid);
-	if (IS_ERR(exp)) {
-		err = PTR_ERR(exp);
-		goto err_hash;
-	}
-
-	obd->obd_self_export = exp;
-	list_del_init(&exp->exp_obd_chain_timed);
-	class_export_put(exp);
-
-	err = obd_setup(obd, lcfg);
-	if (err)
-		goto err_exp;
-
-	obd->obd_set_up = 1;
-
-	spin_lock(&obd->obd_dev_lock);
-	/* cleanup drops this */
-	class_incref(obd, "setup", obd);
-	spin_unlock(&obd->obd_dev_lock);
-
-	CDEBUG(D_IOCTL, "finished setup of obd %s (uuid %s)\n",
-	       obd->obd_name, obd->obd_uuid.uuid);
-
-	return 0;
-err_exp:
-	if (obd->obd_self_export) {
-		class_unlink_export(obd->obd_self_export);
-		obd->obd_self_export = NULL;
-	}
-err_hash:
-	if (obd->obd_uuid_hash) {
-		cfs_hash_putref(obd->obd_uuid_hash);
-		obd->obd_uuid_hash = NULL;
-	}
-	if (obd->obd_nid_hash) {
-		cfs_hash_putref(obd->obd_nid_hash);
-		obd->obd_nid_hash = NULL;
-	}
-	obd->obd_starting = 0;
-	CERROR("setup %s failed (%d)\n", obd->obd_name, err);
-	return err;
-}
-EXPORT_SYMBOL(class_setup);
-
-/** We have finished using this obd and are ready to destroy it.
- * There can be no more references to this obd.
- */
-int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	if (obd->obd_set_up) {
-		CERROR("OBD device %d still set up\n", obd->obd_minor);
-		return -EBUSY;
-	}
-
-	spin_lock(&obd->obd_dev_lock);
-	if (!obd->obd_attached) {
-		spin_unlock(&obd->obd_dev_lock);
-		CERROR("OBD device %d not attached\n", obd->obd_minor);
-		return -ENODEV;
-	}
-	obd->obd_attached = 0;
-	spin_unlock(&obd->obd_dev_lock);
-
-	CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n",
-	       obd->obd_name, obd->obd_uuid.uuid);
-
-	class_decref(obd, "attach", obd);
-	return 0;
-}
-EXPORT_SYMBOL(class_detach);
-
-/** Start shutting down the obd.  There may be in-progress ops when
- * this is called.  We tell them to start shutting down with a call
- * to class_disconnect_exports().
- */
-int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	int err = 0;
-	char *flag;
-
-	OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS);
-
-	if (!obd->obd_set_up) {
-		CERROR("Device %d not setup\n", obd->obd_minor);
-		return -ENODEV;
-	}
-
-	spin_lock(&obd->obd_dev_lock);
-	if (obd->obd_stopping) {
-		spin_unlock(&obd->obd_dev_lock);
-		CERROR("OBD %d already stopping\n", obd->obd_minor);
-		return -ENODEV;
-	}
-	/* Leave this on forever */
-	obd->obd_stopping = 1;
-
-	/* wait for already-arrived-connections to finish. */
-	while (obd->obd_conn_inprogress > 0) {
-		spin_unlock(&obd->obd_dev_lock);
-
-		cond_resched();
-
-		spin_lock(&obd->obd_dev_lock);
-	}
-	spin_unlock(&obd->obd_dev_lock);
-
-	if (lcfg->lcfg_bufcount >= 2 && LUSTRE_CFG_BUFLEN(lcfg, 1) > 0) {
-		for (flag = lustre_cfg_string(lcfg, 1); *flag != 0; flag++)
-			switch (*flag) {
-			case 'F':
-				obd->obd_force = 1;
-				break;
-			case 'A':
-				LCONSOLE_WARN("Failing over %s\n",
-					      obd->obd_name);
-				obd->obd_fail = 1;
-				obd->obd_no_transno = 1;
-				obd->obd_no_recov = 1;
-				if (OBP(obd, iocontrol)) {
-					obd_iocontrol(OBD_IOC_SYNC,
-						      obd->obd_self_export,
-						      0, NULL, NULL);
-				}
-				break;
-			default:
-				CERROR("Unrecognised flag '%c'\n", *flag);
-			}
-	}
-
-	LASSERT(obd->obd_self_export);
-
-	/* The three references that should be remaining are the
-	 * obd_self_export and the attach and setup references. */
-	if (atomic_read(&obd->obd_refcount) > 3) {
-		/* refcount - 3 might be the number of real exports
-		   (excluding self export). But class_incref is called
-		   by other things as well, so don't count on it. */
-		CDEBUG(D_IOCTL, "%s: forcing exports to disconnect: %d\n",
-		       obd->obd_name, atomic_read(&obd->obd_refcount) - 3);
-		dump_exports(obd, 0);
-		class_disconnect_exports(obd);
-	}
-
-	/* Precleanup, we must make sure all exports get destroyed. */
-	err = obd_precleanup(obd, OBD_CLEANUP_EXPORTS);
-	if (err)
-		CERROR("Precleanup %s returned %d\n",
-		       obd->obd_name, err);
-
-	/* destroy an uuid-export hash body */
-	if (obd->obd_uuid_hash) {
-		cfs_hash_putref(obd->obd_uuid_hash);
-		obd->obd_uuid_hash = NULL;
-	}
-
-	/* destroy a nid-export hash body */
-	if (obd->obd_nid_hash) {
-		cfs_hash_putref(obd->obd_nid_hash);
-		obd->obd_nid_hash = NULL;
-	}
-
-	class_decref(obd, "setup", obd);
-	obd->obd_set_up = 0;
-
-	return 0;
-}
-EXPORT_SYMBOL(class_cleanup);
-
-struct obd_device *class_incref(struct obd_device *obd,
-				const char *scope, const void *source)
-{
-	lu_ref_add_atomic(&obd->obd_reference, scope, source);
-	atomic_inc(&obd->obd_refcount);
-	CDEBUG(D_INFO, "incref %s (%p) now %d\n", obd->obd_name, obd,
-	       atomic_read(&obd->obd_refcount));
-
-	return obd;
-}
-EXPORT_SYMBOL(class_incref);
-
-void class_decref(struct obd_device *obd, const char *scope, const void *source)
-{
-	int err;
-	int refs;
-
-	spin_lock(&obd->obd_dev_lock);
-	atomic_dec(&obd->obd_refcount);
-	refs = atomic_read(&obd->obd_refcount);
-	spin_unlock(&obd->obd_dev_lock);
-	lu_ref_del(&obd->obd_reference, scope, source);
-
-	CDEBUG(D_INFO, "Decref %s (%p) now %d\n", obd->obd_name, obd, refs);
-
-	if ((refs == 1) && obd->obd_stopping) {
-		/* All exports have been destroyed; there should
-		   be no more in-progress ops by this point.*/
-
-		spin_lock(&obd->obd_self_export->exp_lock);
-		obd->obd_self_export->exp_flags |= exp_flags_from_obd(obd);
-		spin_unlock(&obd->obd_self_export->exp_lock);
-
-		/* note that we'll recurse into class_decref again */
-		class_unlink_export(obd->obd_self_export);
-		return;
-	}
-
-	if (refs == 0) {
-		CDEBUG(D_CONFIG, "finishing cleanup of obd %s (%s)\n",
-		       obd->obd_name, obd->obd_uuid.uuid);
-		LASSERT(!obd->obd_attached);
-		if (obd->obd_stopping) {
-			/* If we're not stopping, we were never set up */
-			err = obd_cleanup(obd);
-			if (err)
-				CERROR("Cleanup %s returned %d\n",
-				       obd->obd_name, err);
-		}
-		if (OBP(obd, detach)) {
-			err = OBP(obd, detach)(obd);
-			if (err)
-				CERROR("Detach returned %d\n", err);
-		}
-		class_release_dev(obd);
-	}
-}
-EXPORT_SYMBOL(class_decref);
-
-/** Add a failover nid location.
- * Client obd types contact server obd types using this nid list.
- */
-int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	struct obd_import *imp;
-	struct obd_uuid uuid;
-	int rc;
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
-	    LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
-		CERROR("invalid conn_uuid\n");
-		return -EINVAL;
-	}
-	if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
-	    strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
-	    strcmp(obd->obd_type->typ_name, LUSTRE_OSP_NAME) &&
-	    strcmp(obd->obd_type->typ_name, LUSTRE_LWP_NAME) &&
-	    strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
-		CERROR("can't add connection on non-client dev\n");
-		return -EINVAL;
-	}
-
-	imp = obd->u.cli.cl_import;
-	if (!imp) {
-		CERROR("try to add conn on immature client dev\n");
-		return -EINVAL;
-	}
-
-	obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
-	rc = obd_add_conn(imp, &uuid, lcfg->lcfg_num);
-
-	return rc;
-}
-EXPORT_SYMBOL(class_add_conn);
-
-/** Remove a failover nid location.
- */
-int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
-{
-	struct obd_import *imp;
-	struct obd_uuid uuid;
-	int rc;
-
-	if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
-	    LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
-		CERROR("invalid conn_uuid\n");
-		return -EINVAL;
-	}
-	if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
-	    strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
-		CERROR("can't del connection on non-client dev\n");
-		return -EINVAL;
-	}
-
-	imp = obd->u.cli.cl_import;
-	if (!imp) {
-		CERROR("try to del conn on immature client dev\n");
-		return -EINVAL;
-	}
-
-	obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
-	rc = obd_del_conn(imp, &uuid);
-
-	return rc;
-}
-
-LIST_HEAD(lustre_profile_list);
-
-struct lustre_profile *class_get_profile(const char *prof)
-{
-	struct lustre_profile *lprof;
-
-	list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
-		if (!strcmp(lprof->lp_profile, prof)) {
-			return lprof;
-		}
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(class_get_profile);
-
-/** Create a named "profile".
- * This defines the mdc and osc names to use for a client.
- * This also is used to define the lov to be used by a mdt.
- */
-int class_add_profile(int proflen, char *prof, int osclen, char *osc,
-		      int mdclen, char *mdc)
-{
-	struct lustre_profile *lprof;
-	int err = 0;
-
-	CDEBUG(D_CONFIG, "Add profile %s\n", prof);
-
-	lprof = kzalloc(sizeof(*lprof), GFP_NOFS);
-	if (!lprof)
-		return -ENOMEM;
-	INIT_LIST_HEAD(&lprof->lp_list);
-
-	LASSERT(proflen == (strlen(prof) + 1));
-	lprof->lp_profile = kmemdup(prof, proflen, GFP_NOFS);
-	if (lprof->lp_profile == NULL) {
-		err = -ENOMEM;
-		goto free_lprof;
-	}
-
-	LASSERT(osclen == (strlen(osc) + 1));
-	lprof->lp_dt = kmemdup(osc, osclen, GFP_NOFS);
-	if (lprof->lp_dt == NULL) {
-		err = -ENOMEM;
-		goto free_lp_profile;
-	}
-
-	if (mdclen > 0) {
-		LASSERT(mdclen == (strlen(mdc) + 1));
-		lprof->lp_md = kmemdup(mdc, mdclen, GFP_NOFS);
-		if (lprof->lp_md == NULL) {
-			err = -ENOMEM;
-			goto free_lp_dt;
-		}
-	}
-
-	list_add(&lprof->lp_list, &lustre_profile_list);
-	return err;
-
-free_lp_dt:
-	kfree(lprof->lp_dt);
-free_lp_profile:
-	kfree(lprof->lp_profile);
-free_lprof:
-	kfree(lprof);
-	return err;
-}
-
-void class_del_profile(const char *prof)
-{
-	struct lustre_profile *lprof;
-
-	CDEBUG(D_CONFIG, "Del profile %s\n", prof);
-
-	lprof = class_get_profile(prof);
-	if (lprof) {
-		list_del(&lprof->lp_list);
-		kfree(lprof->lp_profile);
-		kfree(lprof->lp_dt);
-		kfree(lprof->lp_md);
-		kfree(lprof);
-	}
-}
-EXPORT_SYMBOL(class_del_profile);
-
-/* COMPAT_146 */
-void class_del_profiles(void)
-{
-	struct lustre_profile *lprof, *n;
-
-	list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
-		list_del(&lprof->lp_list);
-		kfree(lprof->lp_profile);
-		kfree(lprof->lp_dt);
-		kfree(lprof->lp_md);
-		kfree(lprof);
-	}
-}
-EXPORT_SYMBOL(class_del_profiles);
-
-static int class_set_global(char *ptr, int val, struct lustre_cfg *lcfg)
-{
-	if (class_match_param(ptr, PARAM_AT_MIN, NULL) == 0)
-		at_min = val;
-	else if (class_match_param(ptr, PARAM_AT_MAX, NULL) == 0)
-		at_max = val;
-	else if (class_match_param(ptr, PARAM_AT_EXTRA, NULL) == 0)
-		at_extra = val;
-	else if (class_match_param(ptr, PARAM_AT_EARLY_MARGIN, NULL) == 0)
-		at_early_margin = val;
-	else if (class_match_param(ptr, PARAM_AT_HISTORY, NULL) == 0)
-		at_history = val;
-	else if (class_match_param(ptr, PARAM_JOBID_VAR, NULL) == 0)
-		strlcpy(obd_jobid_var, lustre_cfg_string(lcfg, 2),
-			JOBSTATS_JOBID_VAR_MAX_LEN + 1);
-	else
-		return -EINVAL;
-
-	CDEBUG(D_IOCTL, "global %s = %d\n", ptr, val);
-	return 0;
-}
-
-
-/* We can't call ll_process_config or lquota_process_config directly because
- * it lives in a module that must be loaded after this one. */
-static int (*client_process_config)(struct lustre_cfg *lcfg) = NULL;
-static int (*quota_process_config)(struct lustre_cfg *lcfg) = NULL;
-
-void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg))
-{
-	client_process_config = cpc;
-}
-EXPORT_SYMBOL(lustre_register_client_process_config);
-
-/**
- * Rename the proc parameter in \a cfg with a new name \a new_name.
- *
- * \param cfg	   config structure which contains the proc parameter
- * \param new_name new name of the proc parameter
- *
- * \retval valid-pointer    pointer to the newly-allocated config structure
- *			    which contains the renamed proc parameter
- * \retval ERR_PTR(-EINVAL) if \a cfg or \a new_name is NULL, or \a cfg does
- *			    not contain a proc parameter
- * \retval ERR_PTR(-ENOMEM) if memory allocation failure occurs
- */
-struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
-				     const char *new_name)
-{
-	struct lustre_cfg_bufs	*bufs = NULL;
-	struct lustre_cfg	*new_cfg = NULL;
-	char			*param = NULL;
-	char			*new_param = NULL;
-	char			*value = NULL;
-	int			 name_len = 0;
-	int			 new_len = 0;
-
-	if (cfg == NULL || new_name == NULL)
-		return ERR_PTR(-EINVAL);
-
-	param = lustre_cfg_string(cfg, 1);
-	if (param == NULL)
-		return ERR_PTR(-EINVAL);
-
-	value = strchr(param, '=');
-	if (value == NULL)
-		name_len = strlen(param);
-	else
-		name_len = value - param;
-
-	new_len = LUSTRE_CFG_BUFLEN(cfg, 1) + strlen(new_name) - name_len;
-
-	new_param = kzalloc(new_len, GFP_NOFS);
-	if (!new_param)
-		return ERR_PTR(-ENOMEM);
-
-	strcpy(new_param, new_name);
-	if (value != NULL)
-		strcat(new_param, value);
-
-	bufs = kzalloc(sizeof(*bufs), GFP_NOFS);
-	if (!bufs) {
-		kfree(new_param);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	lustre_cfg_bufs_reset(bufs, NULL);
-	lustre_cfg_bufs_init(bufs, cfg);
-	lustre_cfg_bufs_set_string(bufs, 1, new_param);
-
-	new_cfg = lustre_cfg_new(cfg->lcfg_command, bufs);
-
-	kfree(new_param);
-	kfree(bufs);
-	if (new_cfg == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	new_cfg->lcfg_num = cfg->lcfg_num;
-	new_cfg->lcfg_flags = cfg->lcfg_flags;
-	new_cfg->lcfg_nid = cfg->lcfg_nid;
-	new_cfg->lcfg_nal = cfg->lcfg_nal;
-
-	return new_cfg;
-}
-EXPORT_SYMBOL(lustre_cfg_rename);
-
-static int process_param2_config(struct lustre_cfg *lcfg)
-{
-	char *param = lustre_cfg_string(lcfg, 1);
-	char *upcall = lustre_cfg_string(lcfg, 2);
-	char *argv[] = {
-		[0] = "/usr/sbin/lctl",
-		[1] = "set_param",
-		[2] = param,
-		[3] = NULL
-	};
-	struct timeval	start;
-	struct timeval	end;
-	int		rc;
-
-
-	/* Add upcall processing here. Now only lctl is supported */
-	if (strcmp(upcall, LCTL_UPCALL) != 0) {
-		CERROR("Unsupported upcall %s\n", upcall);
-		return -EINVAL;
-	}
-
-	do_gettimeofday(&start);
-	rc = call_usermodehelper(argv[0], argv, NULL, 1);
-	do_gettimeofday(&end);
-
-	if (rc < 0) {
-		CERROR(
-		       "lctl: error invoking upcall %s %s %s: rc = %d; time %ldus\n",
-		       argv[0], argv[1], argv[2], rc,
-		       cfs_timeval_sub(&end, &start, NULL));
-	} else {
-		CDEBUG(D_HA, "lctl: invoked upcall %s %s %s, time %ldus\n",
-		       argv[0], argv[1], argv[2],
-		       cfs_timeval_sub(&end, &start, NULL));
-		       rc = 0;
-	}
-
-	return rc;
-}
-
-void lustre_register_quota_process_config(int (*qpc)(struct lustre_cfg *lcfg))
-{
-	quota_process_config = qpc;
-}
-EXPORT_SYMBOL(lustre_register_quota_process_config);
-
-/** Process configuration commands given in lustre_cfg form.
- * These may come from direct calls (e.g. class_manual_cleanup)
- * or processing the config llog, or ioctl from lctl.
- */
-int class_process_config(struct lustre_cfg *lcfg)
-{
-	struct obd_device *obd;
-	int err;
-
-	LASSERT(lcfg && !IS_ERR(lcfg));
-	CDEBUG(D_IOCTL, "processing cmd: %x\n", lcfg->lcfg_command);
-
-	/* Commands that don't need a device */
-	switch (lcfg->lcfg_command) {
-	case LCFG_ATTACH: {
-		err = class_attach(lcfg);
-		goto out;
-	}
-	case LCFG_ADD_UUID: {
-		CDEBUG(D_IOCTL, "adding mapping from uuid %s to nid %#llx (%s)\n",
-		       lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid,
-		       libcfs_nid2str(lcfg->lcfg_nid));
-
-		err = class_add_uuid(lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid);
-		goto out;
-	}
-	case LCFG_DEL_UUID: {
-		CDEBUG(D_IOCTL, "removing mappings for uuid %s\n",
-		       (lcfg->lcfg_bufcount < 2 || LUSTRE_CFG_BUFLEN(lcfg, 1) == 0)
-		       ? "<all uuids>" : lustre_cfg_string(lcfg, 1));
-
-		err = class_del_uuid(lustre_cfg_string(lcfg, 1));
-		goto out;
-	}
-	case LCFG_MOUNTOPT: {
-		CDEBUG(D_IOCTL, "mountopt: profile %s osc %s mdc %s\n",
-		       lustre_cfg_string(lcfg, 1),
-		       lustre_cfg_string(lcfg, 2),
-		       lustre_cfg_string(lcfg, 3));
-		/* set these mount options somewhere, so ll_fill_super
-		 * can find them. */
-		err = class_add_profile(LUSTRE_CFG_BUFLEN(lcfg, 1),
-					lustre_cfg_string(lcfg, 1),
-					LUSTRE_CFG_BUFLEN(lcfg, 2),
-					lustre_cfg_string(lcfg, 2),
-					LUSTRE_CFG_BUFLEN(lcfg, 3),
-					lustre_cfg_string(lcfg, 3));
-		goto out;
-	}
-	case LCFG_DEL_MOUNTOPT: {
-		CDEBUG(D_IOCTL, "mountopt: profile %s\n",
-		       lustre_cfg_string(lcfg, 1));
-		class_del_profile(lustre_cfg_string(lcfg, 1));
-		err = 0;
-		goto out;
-	}
-	case LCFG_SET_TIMEOUT: {
-		CDEBUG(D_IOCTL, "changing lustre timeout from %d to %d\n",
-		       obd_timeout, lcfg->lcfg_num);
-		obd_timeout = max(lcfg->lcfg_num, 1U);
-		obd_timeout_set = 1;
-		err = 0;
-		goto out;
-	}
-	case LCFG_SET_LDLM_TIMEOUT: {
-		/* ldlm_timeout is not used on the client */
-		err = 0;
-		goto out;
-	}
-	case LCFG_SET_UPCALL: {
-		LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
-		/* COMPAT_146 Don't fail on old configs */
-		err = 0;
-		goto out;
-	}
-	case LCFG_MARKER: {
-		struct cfg_marker *marker;
-		marker = lustre_cfg_buf(lcfg, 1);
-		CDEBUG(D_IOCTL, "marker %d (%#x) %.16s %s\n", marker->cm_step,
-		       marker->cm_flags, marker->cm_tgtname, marker->cm_comment);
-		err = 0;
-		goto out;
-	}
-	case LCFG_PARAM: {
-		char *tmp;
-		/* llite has no obd */
-		if ((class_match_param(lustre_cfg_string(lcfg, 1),
-				       PARAM_LLITE, NULL) == 0) &&
-		    client_process_config) {
-			err = (*client_process_config)(lcfg);
-			goto out;
-		} else if ((class_match_param(lustre_cfg_string(lcfg, 1),
-					      PARAM_SYS, &tmp) == 0)) {
-			/* Global param settings */
-			err = class_set_global(tmp, lcfg->lcfg_num, lcfg);
-			/*
-			 * Client or server should not fail to mount if
-			 * it hits an unknown configuration parameter.
-			 */
-			if (err != 0)
-				CWARN("Ignoring unknown param %s\n", tmp);
-
-			err = 0;
-			goto out;
-		} else if ((class_match_param(lustre_cfg_string(lcfg, 1),
-					      PARAM_QUOTA, &tmp) == 0) &&
-			   quota_process_config) {
-			err = (*quota_process_config)(lcfg);
-			goto out;
-		}
-
-		break;
-	}
-	case LCFG_SET_PARAM: {
-		err = process_param2_config(lcfg);
-		goto out;
-	}
-	}
-	/* Commands that require a device */
-	obd = class_name2obd(lustre_cfg_string(lcfg, 0));
-	if (obd == NULL) {
-		if (!LUSTRE_CFG_BUFLEN(lcfg, 0))
-			CERROR("this lcfg command requires a device name\n");
-		else
-			CERROR("no device for: %s\n",
-			       lustre_cfg_string(lcfg, 0));
-
-		err = -EINVAL;
-		goto out;
-	}
-
-	switch (lcfg->lcfg_command) {
-	case LCFG_SETUP: {
-		err = class_setup(obd, lcfg);
-		goto out;
-	}
-	case LCFG_DETACH: {
-		err = class_detach(obd, lcfg);
-		err = 0;
-		goto out;
-	}
-	case LCFG_CLEANUP: {
-		err = class_cleanup(obd, lcfg);
-		err = 0;
-		goto out;
-	}
-	case LCFG_ADD_CONN: {
-		err = class_add_conn(obd, lcfg);
-		err = 0;
-		goto out;
-	}
-	case LCFG_DEL_CONN: {
-		err = class_del_conn(obd, lcfg);
-		err = 0;
-		goto out;
-	}
-	case LCFG_POOL_NEW: {
-		err = obd_pool_new(obd, lustre_cfg_string(lcfg, 2));
-		err = 0;
-		goto out;
-	}
-	case LCFG_POOL_ADD: {
-		err = obd_pool_add(obd, lustre_cfg_string(lcfg, 2),
-				   lustre_cfg_string(lcfg, 3));
-		err = 0;
-		goto out;
-	}
-	case LCFG_POOL_REM: {
-		err = obd_pool_rem(obd, lustre_cfg_string(lcfg, 2),
-				   lustre_cfg_string(lcfg, 3));
-		err = 0;
-		goto out;
-	}
-	case LCFG_POOL_DEL: {
-		err = obd_pool_del(obd, lustre_cfg_string(lcfg, 2));
-		err = 0;
-		goto out;
-	}
-	default: {
-		err = obd_process_config(obd, sizeof(*lcfg), lcfg);
-		goto out;
-
-	}
-	}
-out:
-	if ((err < 0) && !(lcfg->lcfg_command & LCFG_REQUIRED)) {
-		CWARN("Ignoring error %d on optional command %#x\n", err,
-		      lcfg->lcfg_command);
-		err = 0;
-	}
-	return err;
-}
-EXPORT_SYMBOL(class_process_config);
-
-int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
-			     struct lustre_cfg *lcfg, void *data)
-{
-	struct lprocfs_vars *var;
-	struct file fakefile;
-	struct seq_file fake_seqfile;
-	char *key, *sval;
-	int i, keylen, vallen;
-	int matched = 0, j = 0;
-	int rc = 0;
-	int skip = 0;
-
-	if (lcfg->lcfg_command != LCFG_PARAM) {
-		CERROR("Unknown command: %d\n", lcfg->lcfg_command);
-		return -EINVAL;
-	}
-
-	/* fake a seq file so that var->fops->write can work... */
-	fakefile.private_data = &fake_seqfile;
-	fake_seqfile.private = data;
-	/* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
-	   or   lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
-	   or   lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
-	for (i = 1; i < lcfg->lcfg_bufcount; i++) {
-		key = lustre_cfg_buf(lcfg, i);
-		/* Strip off prefix */
-		class_match_param(key, prefix, &key);
-		sval = strchr(key, '=');
-		if (!sval || (*(sval + 1) == 0)) {
-			CERROR("Can't parse param %s (missing '=')\n", key);
-			/* rc = -EINVAL;	continue parsing other params */
-			continue;
-		}
-		keylen = sval - key;
-		sval++;
-		vallen = strlen(sval);
-		matched = 0;
-		j = 0;
-		/* Search proc entries */
-		while (lvars[j].name) {
-			var = &lvars[j];
-			if (class_match_param(key, (char *)var->name, NULL) == 0
-			    && keylen == strlen(var->name)) {
-				matched++;
-				rc = -EROFS;
-				if (var->fops && var->fops->write) {
-					mm_segment_t oldfs;
-					oldfs = get_fs();
-					set_fs(KERNEL_DS);
-					rc = (var->fops->write)(&fakefile, sval,
-								vallen, NULL);
-					set_fs(oldfs);
-				}
-				break;
-			}
-			j++;
-		}
-		if (!matched) {
-			/* If the prefix doesn't match, return error so we
-			   can pass it down the stack */
-			if (strnchr(key, keylen, '.'))
-			    return -ENOSYS;
-			CERROR("%s: unknown param %s\n",
-			       (char *)lustre_cfg_string(lcfg, 0), key);
-			/* rc = -EINVAL;	continue parsing other params */
-			skip++;
-		} else if (rc < 0) {
-			CERROR("writing proc entry %s err %d\n",
-			       var->name, rc);
-			rc = 0;
-		} else {
-			CDEBUG(D_CONFIG, "%s.%.*s: Set parameter %.*s=%s\n",
-					 lustre_cfg_string(lcfg, 0),
-					 (int)strlen(prefix) - 1, prefix,
-					 (int)(sval - key - 1), key, sval);
-		}
-	}
-
-	if (rc > 0)
-		rc = 0;
-	if (!rc && skip)
-		rc = skip;
-	return rc;
-}
-EXPORT_SYMBOL(class_process_proc_param);
-
-extern int lustre_check_exclusion(struct super_block *sb, char *svname);
-
-/** Parse a configuration llog, doing various manipulations on them
- * for various reasons, (modifications for compatibility, skip obsolete
- * records, change uuids, etc), then class_process_config() resulting
- * net records.
- */
-int class_config_llog_handler(const struct lu_env *env,
-			      struct llog_handle *handle,
-			      struct llog_rec_hdr *rec, void *data)
-{
-	struct config_llog_instance *clli = data;
-	int cfg_len = rec->lrh_len;
-	char *cfg_buf = (char *) (rec + 1);
-	int rc = 0;
-
-	//class_config_dump_handler(handle, rec, data);
-
-	switch (rec->lrh_type) {
-	case OBD_CFG_REC: {
-		struct lustre_cfg *lcfg, *lcfg_new;
-		struct lustre_cfg_bufs bufs;
-		char *inst_name = NULL;
-		int inst_len = 0;
-		int inst = 0, swab = 0;
-
-		lcfg = (struct lustre_cfg *)cfg_buf;
-		if (lcfg->lcfg_version == __swab32(LUSTRE_CFG_VERSION)) {
-			lustre_swab_lustre_cfg(lcfg);
-			swab = 1;
-		}
-
-		rc = lustre_cfg_sanity_check(cfg_buf, cfg_len);
-		if (rc)
-			goto out;
-
-		/* Figure out config state info */
-		if (lcfg->lcfg_command == LCFG_MARKER) {
-			struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
-			lustre_swab_cfg_marker(marker, swab,
-					       LUSTRE_CFG_BUFLEN(lcfg, 1));
-			CDEBUG(D_CONFIG, "Marker, inst_flg=%#x mark_flg=%#x\n",
-			       clli->cfg_flags, marker->cm_flags);
-			if (marker->cm_flags & CM_START) {
-				/* all previous flags off */
-				clli->cfg_flags = CFG_F_MARKER;
-				if (marker->cm_flags & CM_SKIP) {
-					clli->cfg_flags |= CFG_F_SKIP;
-					CDEBUG(D_CONFIG, "SKIP #%d\n",
-					       marker->cm_step);
-				} else if ((marker->cm_flags & CM_EXCLUDE) ||
-					   (clli->cfg_sb &&
-					    lustre_check_exclusion(clli->cfg_sb,
-							 marker->cm_tgtname))) {
-					clli->cfg_flags |= CFG_F_EXCLUDE;
-					CDEBUG(D_CONFIG, "EXCLUDE %d\n",
-					       marker->cm_step);
-				}
-			} else if (marker->cm_flags & CM_END) {
-				clli->cfg_flags = 0;
-			}
-		}
-		/* A config command without a start marker before it is
-		   illegal (post 146) */
-		if (!(clli->cfg_flags & CFG_F_COMPAT146) &&
-		    !(clli->cfg_flags & CFG_F_MARKER) &&
-		    (lcfg->lcfg_command != LCFG_MARKER)) {
-			CWARN("Config not inside markers, ignoring! (inst: %p, uuid: %s, flags: %#x)\n",
-			      clli->cfg_instance,
-			      clli->cfg_uuid.uuid, clli->cfg_flags);
-			clli->cfg_flags |= CFG_F_SKIP;
-		}
-		if (clli->cfg_flags & CFG_F_SKIP) {
-			CDEBUG(D_CONFIG, "skipping %#x\n",
-			       clli->cfg_flags);
-			rc = 0;
-			/* No processing! */
-			break;
-		}
-
-		/*
-		 * For interoperability between 1.8 and 2.0,
-		 * rename "mds" obd device type to "mdt".
-		 */
-		{
-			char *typename = lustre_cfg_string(lcfg, 1);
-			char *index = lustre_cfg_string(lcfg, 2);
-
-			if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
-			     strcmp(typename, "mds") == 0)) {
-				CWARN("For 1.8 interoperability, rename obd type from mds to mdt\n");
-				typename[2] = 't';
-			}
-			if ((lcfg->lcfg_command == LCFG_SETUP && index &&
-			     strcmp(index, "type") == 0)) {
-				CDEBUG(D_INFO, "For 1.8 interoperability, set this index to '0'\n");
-				index[0] = '0';
-				index[1] = 0;
-			}
-		}
-
-
-		if (clli->cfg_flags & CFG_F_EXCLUDE) {
-			CDEBUG(D_CONFIG, "cmd: %x marked EXCLUDED\n",
-			       lcfg->lcfg_command);
-			if (lcfg->lcfg_command == LCFG_LOV_ADD_OBD)
-				/* Add inactive instead */
-				lcfg->lcfg_command = LCFG_LOV_ADD_INA;
-		}
-
-		lustre_cfg_bufs_init(&bufs, lcfg);
-
-		if (clli && clli->cfg_instance &&
-		    LUSTRE_CFG_BUFLEN(lcfg, 0) > 0){
-			inst = 1;
-			inst_len = LUSTRE_CFG_BUFLEN(lcfg, 0) +
-				   sizeof(clli->cfg_instance) * 2 + 4;
-			inst_name = kzalloc(inst_len, GFP_NOFS);
-			if (!inst_name) {
-				rc = -ENOMEM;
-				goto out;
-			}
-			sprintf(inst_name, "%s-%p",
-				lustre_cfg_string(lcfg, 0),
-				clli->cfg_instance);
-			lustre_cfg_bufs_set_string(&bufs, 0, inst_name);
-			CDEBUG(D_CONFIG, "cmd %x, instance name: %s\n",
-			       lcfg->lcfg_command, inst_name);
-		}
-
-		/* we override the llog's uuid for clients, to insure they
-		are unique */
-		if (clli && clli->cfg_instance != NULL &&
-		    lcfg->lcfg_command == LCFG_ATTACH) {
-			lustre_cfg_bufs_set_string(&bufs, 2,
-						   clli->cfg_uuid.uuid);
-		}
-		/*
-		 * sptlrpc config record, we expect 2 data segments:
-		 *  [0]: fs_name/target_name,
-		 *  [1]: rule string
-		 * moving them to index [1] and [2], and insert MGC's
-		 * obdname at index [0].
-		 */
-		if (clli && clli->cfg_instance == NULL &&
-		    lcfg->lcfg_command == LCFG_SPTLRPC_CONF) {
-			lustre_cfg_bufs_set(&bufs, 2, bufs.lcfg_buf[1],
-					    bufs.lcfg_buflen[1]);
-			lustre_cfg_bufs_set(&bufs, 1, bufs.lcfg_buf[0],
-					    bufs.lcfg_buflen[0]);
-			lustre_cfg_bufs_set_string(&bufs, 0,
-						   clli->cfg_obdname);
-		}
-
-		lcfg_new = lustre_cfg_new(lcfg->lcfg_command, &bufs);
-
-		lcfg_new->lcfg_num   = lcfg->lcfg_num;
-		lcfg_new->lcfg_flags = lcfg->lcfg_flags;
-
-		/* XXX Hack to try to remain binary compatible with
-		 * pre-newconfig logs */
-		if (lcfg->lcfg_nal != 0 &&      /* pre-newconfig log? */
-		    (lcfg->lcfg_nid >> 32) == 0) {
-			__u32 addr = (__u32)(lcfg->lcfg_nid & 0xffffffff);
-
-			lcfg_new->lcfg_nid =
-				LNET_MKNID(LNET_MKNET(lcfg->lcfg_nal, 0), addr);
-			CWARN("Converted pre-newconfig NAL %d NID %x to %s\n",
-			      lcfg->lcfg_nal, addr,
-			      libcfs_nid2str(lcfg_new->lcfg_nid));
-		} else {
-			lcfg_new->lcfg_nid = lcfg->lcfg_nid;
-		}
-
-		lcfg_new->lcfg_nal = 0; /* illegal value for obsolete field */
-
-		rc = class_process_config(lcfg_new);
-		lustre_cfg_free(lcfg_new);
-
-		if (inst)
-			kfree(inst_name);
-		break;
-	}
-	default:
-		CERROR("Unknown llog record type %#x encountered\n",
-		       rec->lrh_type);
-		break;
-	}
-out:
-	if (rc) {
-		CERROR("%s: cfg command failed: rc = %d\n",
-		       handle->lgh_ctxt->loc_obd->obd_name, rc);
-		class_config_dump_handler(NULL, handle, rec, data);
-	}
-	return rc;
-}
-EXPORT_SYMBOL(class_config_llog_handler);
-
-int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
-			    char *name, struct config_llog_instance *cfg)
-{
-	struct llog_process_cat_data	 cd = {0, 0};
-	struct llog_handle		*llh;
-	llog_cb_t			 callback;
-	int				 rc;
-
-	CDEBUG(D_INFO, "looking up llog %s\n", name);
-	rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
-	if (rc)
-		return rc;
-
-	rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
-	if (rc)
-		goto parse_out;
-
-	/* continue processing from where we last stopped to end-of-log */
-	if (cfg) {
-		cd.lpcd_first_idx = cfg->cfg_last_idx;
-		callback = cfg->cfg_callback;
-		LASSERT(callback != NULL);
-	} else {
-		callback = class_config_llog_handler;
-	}
-
-	cd.lpcd_last_idx = 0;
-
-	rc = llog_process(env, llh, callback, cfg, &cd);
-
-	CDEBUG(D_CONFIG, "Processed log %s gen %d-%d (rc=%d)\n", name,
-	       cd.lpcd_first_idx + 1, cd.lpcd_last_idx, rc);
-	if (cfg)
-		cfg->cfg_last_idx = cd.lpcd_last_idx;
-
-parse_out:
-	llog_close(env, llh);
-	return rc;
-}
-EXPORT_SYMBOL(class_config_parse_llog);
-
-/**
- * parse config record and output dump in supplied buffer.
- * This is separated from class_config_dump_handler() to use
- * for ioctl needs as well
- */
-int class_config_parse_rec(struct llog_rec_hdr *rec, char *buf, int size)
-{
-	struct lustre_cfg	*lcfg = (struct lustre_cfg *)(rec + 1);
-	char			*ptr = buf;
-	char			*end = buf + size;
-	int			 rc = 0;
-
-	LASSERT(rec->lrh_type == OBD_CFG_REC);
-	rc = lustre_cfg_sanity_check(lcfg, rec->lrh_len);
-	if (rc < 0)
-		return rc;
-
-	ptr += snprintf(ptr, end-ptr, "cmd=%05x ", lcfg->lcfg_command);
-	if (lcfg->lcfg_flags)
-		ptr += snprintf(ptr, end-ptr, "flags=%#08x ",
-				lcfg->lcfg_flags);
-
-	if (lcfg->lcfg_num)
-		ptr += snprintf(ptr, end-ptr, "num=%#08x ", lcfg->lcfg_num);
-
-	if (lcfg->lcfg_nid)
-		ptr += snprintf(ptr, end-ptr, "nid=%s(%#llx)\n     ",
-				libcfs_nid2str(lcfg->lcfg_nid),
-				lcfg->lcfg_nid);
-
-	if (lcfg->lcfg_command == LCFG_MARKER) {
-		struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
-
-		ptr += snprintf(ptr, end-ptr, "marker=%d(%#x)%s '%s'",
-				marker->cm_step, marker->cm_flags,
-				marker->cm_tgtname, marker->cm_comment);
-	} else {
-		int i;
-
-		for (i = 0; i <  lcfg->lcfg_bufcount; i++) {
-			ptr += snprintf(ptr, end-ptr, "%d:%s  ", i,
-					lustre_cfg_string(lcfg, i));
-		}
-	}
-	/* return consumed bytes */
-	rc = ptr - buf;
-	return rc;
-}
-
-int class_config_dump_handler(const struct lu_env *env,
-			      struct llog_handle *handle,
-			      struct llog_rec_hdr *rec, void *data)
-{
-	char	*outstr;
-	int	 rc = 0;
-
-	outstr = kzalloc(256, GFP_NOFS);
-	if (!outstr)
-		return -ENOMEM;
-
-	if (rec->lrh_type == OBD_CFG_REC) {
-		class_config_parse_rec(rec, outstr, 256);
-		LCONSOLE(D_WARNING, "   %s\n", outstr);
-	} else {
-		LCONSOLE(D_WARNING, "unhandled lrh_type: %#x\n", rec->lrh_type);
-		rc = -EINVAL;
-	}
-
-	kfree(outstr);
-	return rc;
-}
-
-int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
-			   char *name, struct config_llog_instance *cfg)
-{
-	struct llog_handle	*llh;
-	int			 rc;
-
-	LCONSOLE_INFO("Dumping config log %s\n", name);
-
-	rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
-	if (rc)
-		return rc;
-
-	rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
-	if (rc)
-		goto parse_out;
-
-	rc = llog_process(env, llh, class_config_dump_handler, cfg, NULL);
-parse_out:
-	llog_close(env, llh);
-
-	LCONSOLE_INFO("End config log %s\n", name);
-	return rc;
-}
-EXPORT_SYMBOL(class_config_dump_llog);
-
-/** Call class_cleanup and class_detach.
- * "Manual" only in the sense that we're faking lcfg commands.
- */
-int class_manual_cleanup(struct obd_device *obd)
-{
-	char		    flags[3] = "";
-	struct lustre_cfg      *lcfg;
-	struct lustre_cfg_bufs  bufs;
-	int		     rc;
-
-	if (!obd) {
-		CERROR("empty cleanup\n");
-		return -EALREADY;
-	}
-
-	if (obd->obd_force)
-		strcat(flags, "F");
-	if (obd->obd_fail)
-		strcat(flags, "A");
-
-	CDEBUG(D_CONFIG, "Manual cleanup of %s (flags='%s')\n",
-	       obd->obd_name, flags);
-
-	lustre_cfg_bufs_reset(&bufs, obd->obd_name);
-	lustre_cfg_bufs_set_string(&bufs, 1, flags);
-	lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs);
-	if (!lcfg)
-		return -ENOMEM;
-
-	rc = class_process_config(lcfg);
-	if (rc) {
-		CERROR("cleanup failed %d: %s\n", rc, obd->obd_name);
-		goto out;
-	}
-
-	/* the lcfg is almost the same for both ops */
-	lcfg->lcfg_command = LCFG_DETACH;
-	rc = class_process_config(lcfg);
-	if (rc)
-		CERROR("detach failed %d: %s\n", rc, obd->obd_name);
-out:
-	lustre_cfg_free(lcfg);
-	return rc;
-}
-EXPORT_SYMBOL(class_manual_cleanup);
-
-/*
- * uuid<->export lustre hash operations
- */
-
-static unsigned
-uuid_hash(struct cfs_hash *hs, const void *key, unsigned mask)
-{
-	return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid,
-				  sizeof(((struct obd_uuid *)key)->uuid), mask);
-}
-
-static void *
-uuid_key(struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
-
-	return &exp->exp_client_uuid;
-}
-
-/*
- * NOTE: It is impossible to find an export that is in failed
- *       state with this function
- */
-static int
-uuid_keycmp(const void *key, struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	LASSERT(key);
-	exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
-
-	return obd_uuid_equals(key, &exp->exp_client_uuid) &&
-	       !exp->exp_failed;
-}
-
-static void *
-uuid_export_object(struct hlist_node *hnode)
-{
-	return hlist_entry(hnode, struct obd_export, exp_uuid_hash);
-}
-
-static void
-uuid_export_get(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
-	class_export_get(exp);
-}
-
-static void
-uuid_export_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	exp = hlist_entry(hnode, struct obd_export, exp_uuid_hash);
-	class_export_put(exp);
-}
-
-static cfs_hash_ops_t uuid_hash_ops = {
-	.hs_hash	= uuid_hash,
-	.hs_key	 = uuid_key,
-	.hs_keycmp      = uuid_keycmp,
-	.hs_object      = uuid_export_object,
-	.hs_get	 = uuid_export_get,
-	.hs_put_locked  = uuid_export_put_locked,
-};
-
-
-/*
- * nid<->export hash operations
- */
-
-static unsigned
-nid_hash(struct cfs_hash *hs, const void *key, unsigned mask)
-{
-	return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask);
-}
-
-static void *
-nid_key(struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
-
-	return &exp->exp_connection->c_peer.nid;
-}
-
-/*
- * NOTE: It is impossible to find an export that is in failed
- *       state with this function
- */
-static int
-nid_kepcmp(const void *key, struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	LASSERT(key);
-	exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
-
-	return exp->exp_connection->c_peer.nid == *(lnet_nid_t *)key &&
-	       !exp->exp_failed;
-}
-
-static void *
-nid_export_object(struct hlist_node *hnode)
-{
-	return hlist_entry(hnode, struct obd_export, exp_nid_hash);
-}
-
-static void
-nid_export_get(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
-	class_export_get(exp);
-}
-
-static void
-nid_export_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
-{
-	struct obd_export *exp;
-
-	exp = hlist_entry(hnode, struct obd_export, exp_nid_hash);
-	class_export_put(exp);
-}
-
-static cfs_hash_ops_t nid_hash_ops = {
-	.hs_hash	= nid_hash,
-	.hs_key	 = nid_key,
-	.hs_keycmp      = nid_kepcmp,
-	.hs_object      = nid_export_object,
-	.hs_get	 = nid_export_get,
-	.hs_put_locked  = nid_export_put_locked,
-};
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
deleted file mode 100644
index 7c5bab377f5c..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
+++ /dev/null
@@ -1,1294 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/obd_mount.c
- *
- * Client mount routines
- *
- * Author: Nathan Rutman <nathan@clusterfs.com>
- */
-
-
-#define DEBUG_SUBSYSTEM S_CLASS
-#define D_MOUNT (D_SUPER|D_CONFIG/*|D_WARNING */)
-#define PRINT_CMD CDEBUG
-
-#include "../include/obd.h"
-#include "../include/linux/lustre_compat25.h"
-#include "../include/obd_class.h"
-#include "../include/lustre/lustre_user.h"
-#include "../include/lustre_log.h"
-#include "../include/lustre_disk.h"
-#include "../include/lustre_param.h"
-
-static int (*client_fill_super)(struct super_block *sb,
-				struct vfsmount *mnt);
-
-static void (*kill_super_cb)(struct super_block *sb);
-
-/**************** config llog ********************/
-
-/** Get a config log from the MGS and process it.
- * This func is called for both clients and servers.
- * Continue to process new statements appended to the logs
- * (whenever the config lock is revoked) until lustre_end_log
- * is called.
- * @param sb The superblock is used by the MGC to write to the local copy of
- *   the config log
- * @param logname The name of the llog to replicate from the MGS
- * @param cfg Since the same mgc may be used to follow multiple config logs
- *   (e.g. ost1, ost2, client), the config_llog_instance keeps the state for
- *   this log, and is added to the mgc's list of logs to follow.
- */
-int lustre_process_log(struct super_block *sb, char *logname,
-		     struct config_llog_instance *cfg)
-{
-	struct lustre_cfg *lcfg;
-	struct lustre_cfg_bufs *bufs;
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct obd_device *mgc = lsi->lsi_mgc;
-	int rc;
-
-	LASSERT(mgc);
-	LASSERT(cfg);
-
-	bufs = kzalloc(sizeof(*bufs), GFP_NOFS);
-	if (!bufs)
-		return -ENOMEM;
-
-	/* mgc_process_config */
-	lustre_cfg_bufs_reset(bufs, mgc->obd_name);
-	lustre_cfg_bufs_set_string(bufs, 1, logname);
-	lustre_cfg_bufs_set(bufs, 2, cfg, sizeof(*cfg));
-	lustre_cfg_bufs_set(bufs, 3, &sb, sizeof(sb));
-	lcfg = lustre_cfg_new(LCFG_LOG_START, bufs);
-	rc = obd_process_config(mgc, sizeof(*lcfg), lcfg);
-	lustre_cfg_free(lcfg);
-
-	kfree(bufs);
-
-	if (rc == -EINVAL)
-		LCONSOLE_ERROR_MSG(0x15b, "%s: The configuration from log '%s' failed from the MGS (%d).  Make sure this client and the MGS are running compatible versions of Lustre.\n",
-				   mgc->obd_name, logname, rc);
-
-	if (rc)
-		LCONSOLE_ERROR_MSG(0x15c, "%s: The configuration from log '%s' failed (%d). This may be the result of communication errors between this node and the MGS, a bad configuration, or other errors. See the syslog for more information.\n",
-				   mgc->obd_name, logname,
-				   rc);
-
-	/* class_obd_list(); */
-	return rc;
-}
-EXPORT_SYMBOL(lustre_process_log);
-
-/* Stop watching this config log for updates */
-int lustre_end_log(struct super_block *sb, char *logname,
-		       struct config_llog_instance *cfg)
-{
-	struct lustre_cfg *lcfg;
-	struct lustre_cfg_bufs bufs;
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct obd_device *mgc = lsi->lsi_mgc;
-	int rc;
-
-	if (!mgc)
-		return -ENOENT;
-
-	/* mgc_process_config */
-	lustre_cfg_bufs_reset(&bufs, mgc->obd_name);
-	lustre_cfg_bufs_set_string(&bufs, 1, logname);
-	if (cfg)
-		lustre_cfg_bufs_set(&bufs, 2, cfg, sizeof(*cfg));
-	lcfg = lustre_cfg_new(LCFG_LOG_END, &bufs);
-	rc = obd_process_config(mgc, sizeof(*lcfg), lcfg);
-	lustre_cfg_free(lcfg);
-	return rc;
-}
-EXPORT_SYMBOL(lustre_end_log);
-
-/**************** obd start *******************/
-
-/** lustre_cfg_bufs are a holdover from 1.4; we can still set these up from
- * lctl (and do for echo cli/srv.
- */
-int do_lcfg(char *cfgname, lnet_nid_t nid, int cmd,
-	    char *s1, char *s2, char *s3, char *s4)
-{
-	struct lustre_cfg_bufs bufs;
-	struct lustre_cfg     *lcfg = NULL;
-	int rc;
-
-	CDEBUG(D_TRACE, "lcfg %s %#x %s %s %s %s\n", cfgname,
-	       cmd, s1, s2, s3, s4);
-
-	lustre_cfg_bufs_reset(&bufs, cfgname);
-	if (s1)
-		lustre_cfg_bufs_set_string(&bufs, 1, s1);
-	if (s2)
-		lustre_cfg_bufs_set_string(&bufs, 2, s2);
-	if (s3)
-		lustre_cfg_bufs_set_string(&bufs, 3, s3);
-	if (s4)
-		lustre_cfg_bufs_set_string(&bufs, 4, s4);
-
-	lcfg = lustre_cfg_new(cmd, &bufs);
-	lcfg->lcfg_nid = nid;
-	rc = class_process_config(lcfg);
-	lustre_cfg_free(lcfg);
-	return rc;
-}
-EXPORT_SYMBOL(do_lcfg);
-
-/** Call class_attach and class_setup.  These methods in turn call
- * obd type-specific methods.
- */
-int lustre_start_simple(char *obdname, char *type, char *uuid,
-			char *s1, char *s2, char *s3, char *s4)
-{
-	int rc;
-	CDEBUG(D_MOUNT, "Starting obd %s (typ=%s)\n", obdname, type);
-
-	rc = do_lcfg(obdname, 0, LCFG_ATTACH, type, uuid, NULL, NULL);
-	if (rc) {
-		CERROR("%s attach error %d\n", obdname, rc);
-		return rc;
-	}
-	rc = do_lcfg(obdname, 0, LCFG_SETUP, s1, s2, s3, s4);
-	if (rc) {
-		CERROR("%s setup error %d\n", obdname, rc);
-		do_lcfg(obdname, 0, LCFG_DETACH, NULL, NULL, NULL, NULL);
-	}
-	return rc;
-}
-
-DEFINE_MUTEX(mgc_start_lock);
-
-/** Set up a mgc obd to process startup logs
- *
- * \param sb [in] super block of the mgc obd
- *
- * \retval 0 success, otherwise error code
- */
-int lustre_start_mgc(struct super_block *sb)
-{
-	struct obd_connect_data *data = NULL;
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct obd_device *obd;
-	struct obd_export *exp;
-	struct obd_uuid *uuid;
-	class_uuid_t uuidc;
-	lnet_nid_t nid;
-	char *mgcname = NULL, *niduuid = NULL, *mgssec = NULL;
-	char *ptr;
-	int rc = 0, i = 0, j, len;
-
-	LASSERT(lsi->lsi_lmd);
-
-	/* Find the first non-lo MGS nid for our MGC name */
-	if (IS_SERVER(lsi)) {
-		/* mount -o mgsnode=nid */
-		ptr = lsi->lsi_lmd->lmd_mgs;
-		if (lsi->lsi_lmd->lmd_mgs &&
-		    (class_parse_nid(lsi->lsi_lmd->lmd_mgs, &nid, &ptr) == 0)) {
-			i++;
-		} else if (IS_MGS(lsi)) {
-			lnet_process_id_t id;
-			while ((rc = LNetGetId(i++, &id)) != -ENOENT) {
-				if (LNET_NETTYP(LNET_NIDNET(id.nid)) == LOLND)
-					continue;
-				nid = id.nid;
-				i++;
-				break;
-			}
-		}
-	} else { /* client */
-		/* Use nids from mount line: uml1,1@elan:uml2,2@elan:/lustre */
-		ptr = lsi->lsi_lmd->lmd_dev;
-		if (class_parse_nid(ptr, &nid, &ptr) == 0)
-			i++;
-	}
-	if (i == 0) {
-		CERROR("No valid MGS nids found.\n");
-		return -EINVAL;
-	}
-
-	mutex_lock(&mgc_start_lock);
-
-	len = strlen(LUSTRE_MGC_OBDNAME) + strlen(libcfs_nid2str(nid)) + 1;
-	mgcname = kasprintf(GFP_NOFS,
-			    "%s%s", LUSTRE_MGC_OBDNAME, libcfs_nid2str(nid));
-	niduuid = kasprintf(GFP_NOFS, "%s_%x", mgcname, i);
-	if (!mgcname || !niduuid) {
-		rc = -ENOMEM;
-		goto out_free;
-	}
-
-	mgssec = lsi->lsi_lmd->lmd_mgssec ? lsi->lsi_lmd->lmd_mgssec : "";
-
-	data = kzalloc(sizeof(*data), GFP_NOFS);
-	if (!data) {
-		rc = -ENOMEM;
-		goto out_free;
-	}
-
-	obd = class_name2obd(mgcname);
-	if (obd && !obd->obd_stopping) {
-		int recov_bk;
-
-		rc = obd_set_info_async(NULL, obd->obd_self_export,
-					strlen(KEY_MGSSEC), KEY_MGSSEC,
-					strlen(mgssec), mgssec, NULL);
-		if (rc)
-			goto out_free;
-
-		/* Re-using an existing MGC */
-		atomic_inc(&obd->u.cli.cl_mgc_refcount);
-
-		/* IR compatibility check, only for clients */
-		if (lmd_is_client(lsi->lsi_lmd)) {
-			int has_ir;
-			int vallen = sizeof(*data);
-			__u32 *flags = &lsi->lsi_lmd->lmd_flags;
-
-			rc = obd_get_info(NULL, obd->obd_self_export,
-					  strlen(KEY_CONN_DATA), KEY_CONN_DATA,
-					  &vallen, data, NULL);
-			LASSERT(rc == 0);
-			has_ir = OCD_HAS_FLAG(data, IMP_RECOV);
-			if (has_ir ^ !(*flags & LMD_FLG_NOIR)) {
-				/* LMD_FLG_NOIR is for test purpose only */
-				LCONSOLE_WARN(
-					"Trying to mount a client with IR setting not compatible with current mgc. Force to use current mgc setting that is IR %s.\n",
-					has_ir ? "enabled" : "disabled");
-				if (has_ir)
-					*flags &= ~LMD_FLG_NOIR;
-				else
-					*flags |= LMD_FLG_NOIR;
-			}
-		}
-
-		recov_bk = 0;
-		/* If we are restarting the MGS, don't try to keep the MGC's
-		   old connection, or registration will fail. */
-		if (IS_MGS(lsi)) {
-			CDEBUG(D_MOUNT, "New MGS with live MGC\n");
-			recov_bk = 1;
-		}
-
-		/* Try all connections, but only once (again).
-		   We don't want to block another target from starting
-		   (using its local copy of the log), but we do want to connect
-		   if at all possible. */
-		recov_bk++;
-		CDEBUG(D_MOUNT, "%s: Set MGC reconnect %d\n", mgcname,
-		       recov_bk);
-		rc = obd_set_info_async(NULL, obd->obd_self_export,
-					sizeof(KEY_INIT_RECOV_BACKUP),
-					KEY_INIT_RECOV_BACKUP,
-					sizeof(recov_bk), &recov_bk, NULL);
-		rc = 0;
-		goto out;
-	}
-
-	CDEBUG(D_MOUNT, "Start MGC '%s'\n", mgcname);
-
-	/* Add the primary nids for the MGS */
-	i = 0;
-	if (IS_SERVER(lsi)) {
-		ptr = lsi->lsi_lmd->lmd_mgs;
-		if (IS_MGS(lsi)) {
-			/* Use local nids (including LO) */
-			lnet_process_id_t id;
-			while ((rc = LNetGetId(i++, &id)) != -ENOENT) {
-				rc = do_lcfg(mgcname, id.nid,
-					     LCFG_ADD_UUID, niduuid,
-					     NULL, NULL, NULL);
-			}
-		} else {
-			/* Use mgsnode= nids */
-			/* mount -o mgsnode=nid */
-			if (lsi->lsi_lmd->lmd_mgs) {
-				ptr = lsi->lsi_lmd->lmd_mgs;
-			} else if (class_find_param(ptr, PARAM_MGSNODE,
-						    &ptr) != 0) {
-				CERROR("No MGS nids given.\n");
-				rc = -EINVAL;
-				goto out_free;
-			}
-			while (class_parse_nid(ptr, &nid, &ptr) == 0) {
-				rc = do_lcfg(mgcname, nid,
-					     LCFG_ADD_UUID, niduuid,
-					     NULL, NULL, NULL);
-				i++;
-			}
-		}
-	} else { /* client */
-		/* Use nids from mount line: uml1,1@elan:uml2,2@elan:/lustre */
-		ptr = lsi->lsi_lmd->lmd_dev;
-		while (class_parse_nid(ptr, &nid, &ptr) == 0) {
-			rc = do_lcfg(mgcname, nid,
-				     LCFG_ADD_UUID, niduuid, NULL, NULL, NULL);
-			i++;
-			/* Stop at the first failover nid */
-			if (*ptr == ':')
-				break;
-		}
-	}
-	if (i == 0) {
-		CERROR("No valid MGS nids found.\n");
-		rc = -EINVAL;
-		goto out_free;
-	}
-	lsi->lsi_lmd->lmd_mgs_failnodes = 1;
-
-	/* Random uuid for MGC allows easier reconnects */
-	uuid = kzalloc(sizeof(*uuid), GFP_NOFS);
-	if (!uuid) {
-		rc = -ENOMEM;
-		goto out_free;
-	}
-
-	ll_generate_random_uuid(uuidc);
-	class_uuid_unparse(uuidc, uuid);
-
-	/* Start the MGC */
-	rc = lustre_start_simple(mgcname, LUSTRE_MGC_NAME,
-				 (char *)uuid->uuid, LUSTRE_MGS_OBDNAME,
-				 niduuid, NULL, NULL);
-	kfree(uuid);
-	if (rc)
-		goto out_free;
-
-	/* Add any failover MGS nids */
-	i = 1;
-	while (ptr && ((*ptr == ':' ||
-	       class_find_param(ptr, PARAM_MGSNODE, &ptr) == 0))) {
-		/* New failover node */
-		sprintf(niduuid, "%s_%x", mgcname, i);
-		j = 0;
-		while (class_parse_nid_quiet(ptr, &nid, &ptr) == 0) {
-			j++;
-			rc = do_lcfg(mgcname, nid,
-				     LCFG_ADD_UUID, niduuid, NULL, NULL, NULL);
-			if (*ptr == ':')
-				break;
-		}
-		if (j > 0) {
-			rc = do_lcfg(mgcname, 0, LCFG_ADD_CONN,
-				     niduuid, NULL, NULL, NULL);
-			i++;
-		} else {
-			/* at ":/fsname" */
-			break;
-		}
-	}
-	lsi->lsi_lmd->lmd_mgs_failnodes = i;
-
-	obd = class_name2obd(mgcname);
-	if (!obd) {
-		CERROR("Can't find mgcobd %s\n", mgcname);
-		rc = -ENOTCONN;
-		goto out_free;
-	}
-
-	rc = obd_set_info_async(NULL, obd->obd_self_export,
-				strlen(KEY_MGSSEC), KEY_MGSSEC,
-				strlen(mgssec), mgssec, NULL);
-	if (rc)
-		goto out_free;
-
-	/* Keep a refcount of servers/clients who started with "mount",
-	   so we know when we can get rid of the mgc. */
-	atomic_set(&obd->u.cli.cl_mgc_refcount, 1);
-
-	/* We connect to the MGS at setup, and don't disconnect until cleanup */
-	data->ocd_connect_flags = OBD_CONNECT_VERSION | OBD_CONNECT_AT |
-				  OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV |
-				  OBD_CONNECT_LVB_TYPE;
-
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 50, 0)
-	data->ocd_connect_flags |= OBD_CONNECT_MNE_SWAB;
-#else
-#warning "LU-1644: Remove old OBD_CONNECT_MNE_SWAB fixup and imp_need_mne_swab"
-#endif
-
-	if (lmd_is_client(lsi->lsi_lmd) &&
-	    lsi->lsi_lmd->lmd_flags & LMD_FLG_NOIR)
-		data->ocd_connect_flags &= ~OBD_CONNECT_IMP_RECOV;
-	data->ocd_version = LUSTRE_VERSION_CODE;
-	rc = obd_connect(NULL, &exp, obd, &(obd->obd_uuid), data, NULL);
-	if (rc) {
-		CERROR("connect failed %d\n", rc);
-		goto out;
-	}
-
-	obd->u.cli.cl_mgc_mgsexp = exp;
-
-out:
-	/* Keep the mgc info in the sb. Note that many lsi's can point
-	   to the same mgc.*/
-	lsi->lsi_mgc = obd;
-out_free:
-	mutex_unlock(&mgc_start_lock);
-
-	kfree(data);
-	kfree(mgcname);
-	kfree(niduuid);
-	return rc;
-}
-
-static int lustre_stop_mgc(struct super_block *sb)
-{
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct obd_device *obd;
-	char *niduuid = NULL, *ptr = NULL;
-	int i, rc = 0, len = 0;
-
-	if (!lsi)
-		return -ENOENT;
-	obd = lsi->lsi_mgc;
-	if (!obd)
-		return -ENOENT;
-	lsi->lsi_mgc = NULL;
-
-	mutex_lock(&mgc_start_lock);
-	LASSERT(atomic_read(&obd->u.cli.cl_mgc_refcount) > 0);
-	if (!atomic_dec_and_test(&obd->u.cli.cl_mgc_refcount)) {
-		/* This is not fatal, every client that stops
-		   will call in here. */
-		CDEBUG(D_MOUNT, "mgc still has %d references.\n",
-		       atomic_read(&obd->u.cli.cl_mgc_refcount));
-		rc = -EBUSY;
-		goto out;
-	}
-
-	/* The MGC has no recoverable data in any case.
-	 * force shutdown set in umount_begin */
-	obd->obd_no_recov = 1;
-
-	if (obd->u.cli.cl_mgc_mgsexp) {
-		/* An error is not fatal, if we are unable to send the
-		   disconnect mgs ping evictor cleans up the export */
-		rc = obd_disconnect(obd->u.cli.cl_mgc_mgsexp);
-		if (rc)
-			CDEBUG(D_MOUNT, "disconnect failed %d\n", rc);
-	}
-
-	/* Save the obdname for cleaning the nid uuids, which are
-	   obdname_XX */
-	len = strlen(obd->obd_name) + 6;
-	niduuid = kzalloc(len, GFP_NOFS);
-	if (niduuid) {
-		strcpy(niduuid, obd->obd_name);
-		ptr = niduuid + strlen(niduuid);
-	}
-
-	rc = class_manual_cleanup(obd);
-	if (rc)
-		goto out;
-
-	/* Clean the nid uuids */
-	if (!niduuid) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	for (i = 0; i < lsi->lsi_lmd->lmd_mgs_failnodes; i++) {
-		sprintf(ptr, "_%x", i);
-		rc = do_lcfg(LUSTRE_MGC_OBDNAME, 0, LCFG_DEL_UUID,
-			     niduuid, NULL, NULL, NULL);
-		if (rc)
-			CERROR("del MDC UUID %s failed: rc = %d\n",
-			       niduuid, rc);
-	}
-out:
-	kfree(niduuid);
-
-	/* class_import_put will get rid of the additional connections */
-	mutex_unlock(&mgc_start_lock);
-	return rc;
-}
-
-/***************** lustre superblock **************/
-
-struct lustre_sb_info *lustre_init_lsi(struct super_block *sb)
-{
-	struct lustre_sb_info *lsi;
-
-	lsi = kzalloc(sizeof(*lsi), GFP_NOFS);
-	if (!lsi)
-		return NULL;
-	lsi->lsi_lmd = kzalloc(sizeof(*lsi->lsi_lmd), GFP_NOFS);
-	if (!lsi->lsi_lmd) {
-		kfree(lsi);
-		return NULL;
-	}
-
-	lsi->lsi_lmd->lmd_exclude_count = 0;
-	lsi->lsi_lmd->lmd_recovery_time_soft = 0;
-	lsi->lsi_lmd->lmd_recovery_time_hard = 0;
-	s2lsi_nocast(sb) = lsi;
-	/* we take 1 extra ref for our setup */
-	atomic_set(&lsi->lsi_mounts, 1);
-
-	/* Default umount style */
-	lsi->lsi_flags = LSI_UMOUNT_FAILOVER;
-
-	return lsi;
-}
-
-static int lustre_free_lsi(struct super_block *sb)
-{
-	struct lustre_sb_info *lsi = s2lsi(sb);
-
-	LASSERT(lsi != NULL);
-	CDEBUG(D_MOUNT, "Freeing lsi %p\n", lsi);
-
-	/* someone didn't call server_put_mount. */
-	LASSERT(atomic_read(&lsi->lsi_mounts) == 0);
-
-	if (lsi->lsi_lmd != NULL) {
-		kfree(lsi->lsi_lmd->lmd_dev);
-		kfree(lsi->lsi_lmd->lmd_profile);
-		kfree(lsi->lsi_lmd->lmd_mgssec);
-		kfree(lsi->lsi_lmd->lmd_opts);
-		if (lsi->lsi_lmd->lmd_exclude_count)
-			kfree(lsi->lsi_lmd->lmd_exclude);
-		kfree(lsi->lsi_lmd->lmd_mgs);
-		kfree(lsi->lsi_lmd->lmd_osd_type);
-		kfree(lsi->lsi_lmd->lmd_params);
-
-		kfree(lsi->lsi_lmd);
-	}
-
-	LASSERT(lsi->lsi_llsbi == NULL);
-	kfree(lsi);
-	s2lsi_nocast(sb) = NULL;
-
-	return 0;
-}
-
-/* The lsi has one reference for every server that is using the disk -
-   e.g. MDT, MGS, and potentially MGC */
-int lustre_put_lsi(struct super_block *sb)
-{
-	struct lustre_sb_info *lsi = s2lsi(sb);
-
-	LASSERT(lsi != NULL);
-
-	CDEBUG(D_MOUNT, "put %p %d\n", sb, atomic_read(&lsi->lsi_mounts));
-	if (atomic_dec_and_test(&lsi->lsi_mounts)) {
-		if (IS_SERVER(lsi) && lsi->lsi_osd_exp) {
-			lu_device_put(&lsi->lsi_dt_dev->dd_lu_dev);
-			lsi->lsi_osd_exp->exp_obd->obd_lvfs_ctxt.dt = NULL;
-			lsi->lsi_dt_dev = NULL;
-			obd_disconnect(lsi->lsi_osd_exp);
-			/* wait till OSD is gone */
-			obd_zombie_barrier();
-		}
-		lustre_free_lsi(sb);
-		return 1;
-	}
-	return 0;
-}
-
-/*** SERVER NAME ***
- * <FSNAME><SEPARATOR><TYPE><INDEX>
- * FSNAME is between 1 and 8 characters (inclusive).
- *	Excluded characters are '/' and ':'
- * SEPARATOR is either ':' or '-'
- * TYPE: "OST", "MDT", etc.
- * INDEX: Hex representation of the index
- */
-
-/** Get the fsname ("lustre") from the server name ("lustre-OST003F").
- * @param [in] svname server name including type and index
- * @param [out] fsname Buffer to copy filesystem name prefix into.
- *  Must have at least 'strlen(fsname) + 1' chars.
- * @param [out] endptr if endptr isn't NULL it is set to end of fsname
- * rc < 0  on error
- */
-int server_name2fsname(const char *svname, char *fsname, const char **endptr)
-{
-	const char *dash;
-
-	dash = svname + strnlen(svname, 8); /* max fsname length is 8 */
-	for (; dash > svname && *dash != '-' && *dash != ':'; dash--)
-		;
-	if (dash == svname)
-		return -EINVAL;
-
-	if (fsname != NULL) {
-		strncpy(fsname, svname, dash - svname);
-		fsname[dash - svname] = '\0';
-	}
-
-	if (endptr != NULL)
-		*endptr = dash;
-
-	return 0;
-}
-EXPORT_SYMBOL(server_name2fsname);
-
-/**
- * Get service name (svname) from string
- * rc < 0 on error
- * if endptr isn't NULL it is set to end of fsname *
- */
-int server_name2svname(const char *label, char *svname, const char **endptr,
-		       size_t svsize)
-{
-	int rc;
-	const char *dash;
-
-	/* We use server_name2fsname() just for parsing */
-	rc = server_name2fsname(label, NULL, &dash);
-	if (rc != 0)
-		return rc;
-
-	if (endptr != NULL)
-		*endptr = dash;
-
-	if (strlcpy(svname, dash + 1, svsize) >= svsize)
-		return -E2BIG;
-
-	return 0;
-}
-EXPORT_SYMBOL(server_name2svname);
-
-
-/* Get the index from the obd name.
-   rc = server type, or
-   rc < 0  on error
-   if endptr isn't NULL it is set to end of name */
-int server_name2index(const char *svname, __u32 *idx, const char **endptr)
-{
-	unsigned long index;
-	int rc;
-	const char *dash;
-
-	/* We use server_name2fsname() just for parsing */
-	rc = server_name2fsname(svname, NULL, &dash);
-	if (rc != 0)
-		return rc;
-
-	dash++;
-
-	if (strncmp(dash, "MDT", 3) == 0)
-		rc = LDD_F_SV_TYPE_MDT;
-	else if (strncmp(dash, "OST", 3) == 0)
-		rc = LDD_F_SV_TYPE_OST;
-	else
-		return -EINVAL;
-
-	dash += 3;
-
-	if (strncmp(dash, "all", 3) == 0) {
-		if (endptr != NULL)
-			*endptr = dash + 3;
-		return rc | LDD_F_SV_ALL;
-	}
-
-	index = simple_strtoul(dash, (char **)endptr, 16);
-	if (idx != NULL)
-		*idx = index;
-
-	/* Account for -mdc after index that is possible when specifying mdt */
-	if (endptr != NULL && strncmp(LUSTRE_MDC_NAME, *endptr + 1,
-				      sizeof(LUSTRE_MDC_NAME)-1) == 0)
-		*endptr += sizeof(LUSTRE_MDC_NAME);
-
-	return rc;
-}
-EXPORT_SYMBOL(server_name2index);
-
-/*************** mount common between server and client ***************/
-
-/* Common umount */
-int lustre_common_put_super(struct super_block *sb)
-{
-	int rc;
-
-	CDEBUG(D_MOUNT, "dropping sb %p\n", sb);
-
-	/* Drop a ref to the MGC */
-	rc = lustre_stop_mgc(sb);
-	if (rc && (rc != -ENOENT)) {
-		if (rc != -EBUSY) {
-			CERROR("Can't stop MGC: %d\n", rc);
-			return rc;
-		}
-		/* BUSY just means that there's some other obd that
-		   needs the mgc.  Let him clean it up. */
-		CDEBUG(D_MOUNT, "MGC still in use\n");
-	}
-	/* Drop a ref to the mounted disk */
-	lustre_put_lsi(sb);
-	lu_types_stop();
-	return rc;
-}
-EXPORT_SYMBOL(lustre_common_put_super);
-
-static void lmd_print(struct lustre_mount_data *lmd)
-{
-	int i;
-
-	PRINT_CMD(D_MOUNT, "  mount data:\n");
-	if (lmd_is_client(lmd))
-		PRINT_CMD(D_MOUNT, "profile: %s\n", lmd->lmd_profile);
-	PRINT_CMD(D_MOUNT, "device:  %s\n", lmd->lmd_dev);
-	PRINT_CMD(D_MOUNT, "flags:   %x\n", lmd->lmd_flags);
-
-	if (lmd->lmd_opts)
-		PRINT_CMD(D_MOUNT, "options: %s\n", lmd->lmd_opts);
-
-	if (lmd->lmd_recovery_time_soft)
-		PRINT_CMD(D_MOUNT, "recovery time soft: %d\n",
-			  lmd->lmd_recovery_time_soft);
-
-	if (lmd->lmd_recovery_time_hard)
-		PRINT_CMD(D_MOUNT, "recovery time hard: %d\n",
-			  lmd->lmd_recovery_time_hard);
-
-	for (i = 0; i < lmd->lmd_exclude_count; i++) {
-		PRINT_CMD(D_MOUNT, "exclude %d:  OST%04x\n", i,
-			  lmd->lmd_exclude[i]);
-	}
-}
-
-/* Is this server on the exclusion list */
-int lustre_check_exclusion(struct super_block *sb, char *svname)
-{
-	struct lustre_sb_info *lsi = s2lsi(sb);
-	struct lustre_mount_data *lmd = lsi->lsi_lmd;
-	__u32 index;
-	int i, rc;
-
-	rc = server_name2index(svname, &index, NULL);
-	if (rc != LDD_F_SV_TYPE_OST)
-		/* Only exclude OSTs */
-		return 0;
-
-	CDEBUG(D_MOUNT, "Check exclusion %s (%d) in %d of %s\n", svname,
-	       index, lmd->lmd_exclude_count, lmd->lmd_dev);
-
-	for (i = 0; i < lmd->lmd_exclude_count; i++) {
-		if (index == lmd->lmd_exclude[i]) {
-			CWARN("Excluding %s (on exclusion list)\n", svname);
-			return 1;
-		}
-	}
-	return 0;
-}
-
-/* mount -v  -o exclude=lustre-OST0001:lustre-OST0002 -t lustre ... */
-static int lmd_make_exclusion(struct lustre_mount_data *lmd, const char *ptr)
-{
-	const char *s1 = ptr, *s2;
-	__u32 index, *exclude_list;
-	int rc = 0, devmax;
-
-	/* The shortest an ost name can be is 8 chars: -OST0000.
-	   We don't actually know the fsname at this time, so in fact
-	   a user could specify any fsname. */
-	devmax = strlen(ptr) / 8 + 1;
-
-	/* temp storage until we figure out how many we have */
-	exclude_list = kcalloc(devmax, sizeof(index), GFP_NOFS);
-	if (!exclude_list)
-		return -ENOMEM;
-
-	/* we enter this fn pointing at the '=' */
-	while (*s1 && *s1 != ' ' && *s1 != ',') {
-		s1++;
-		rc = server_name2index(s1, &index, &s2);
-		if (rc < 0) {
-			CERROR("Can't parse server name '%s': rc = %d\n",
-			       s1, rc);
-			break;
-		}
-		if (rc == LDD_F_SV_TYPE_OST)
-			exclude_list[lmd->lmd_exclude_count++] = index;
-		else
-			CDEBUG(D_MOUNT, "ignoring exclude %.*s: type = %#x\n",
-			       (uint)(s2-s1), s1, rc);
-		s1 = s2;
-		/* now we are pointing at ':' (next exclude)
-		   or ',' (end of excludes) */
-		if (lmd->lmd_exclude_count >= devmax)
-			break;
-	}
-	if (rc >= 0) /* non-err */
-		rc = 0;
-
-	if (lmd->lmd_exclude_count) {
-		/* permanent, freed in lustre_free_lsi */
-		lmd->lmd_exclude = kcalloc(lmd->lmd_exclude_count,
-					   sizeof(index), GFP_NOFS);
-		if (lmd->lmd_exclude) {
-			memcpy(lmd->lmd_exclude, exclude_list,
-			       sizeof(index) * lmd->lmd_exclude_count);
-		} else {
-			rc = -ENOMEM;
-			lmd->lmd_exclude_count = 0;
-		}
-	}
-	kfree(exclude_list);
-	return rc;
-}
-
-static int lmd_parse_mgssec(struct lustre_mount_data *lmd, char *ptr)
-{
-	char   *tail;
-	int     length;
-
-	kfree(lmd->lmd_mgssec);
-	lmd->lmd_mgssec = NULL;
-
-	tail = strchr(ptr, ',');
-	if (tail == NULL)
-		length = strlen(ptr);
-	else
-		length = tail - ptr;
-
-	lmd->lmd_mgssec = kzalloc(length + 1, GFP_NOFS);
-	if (!lmd->lmd_mgssec)
-		return -ENOMEM;
-
-	memcpy(lmd->lmd_mgssec, ptr, length);
-	lmd->lmd_mgssec[length] = '\0';
-	return 0;
-}
-
-static int lmd_parse_string(char **handle, char *ptr)
-{
-	char   *tail;
-	int     length;
-
-	if ((handle == NULL) || (ptr == NULL))
-		return -EINVAL;
-
-	kfree(*handle);
-	*handle = NULL;
-
-	tail = strchr(ptr, ',');
-	if (tail == NULL)
-		length = strlen(ptr);
-	else
-		length = tail - ptr;
-
-	*handle = kzalloc(length + 1, GFP_NOFS);
-	if (!*handle)
-		return -ENOMEM;
-
-	memcpy(*handle, ptr, length);
-	(*handle)[length] = '\0';
-
-	return 0;
-}
-
-/* Collect multiple values for mgsnid specifiers */
-static int lmd_parse_mgs(struct lustre_mount_data *lmd, char **ptr)
-{
-	lnet_nid_t nid;
-	char *tail = *ptr;
-	char *mgsnid;
-	int   length;
-	int   oldlen = 0;
-
-	/* Find end of nidlist */
-	while (class_parse_nid_quiet(tail, &nid, &tail) == 0) {}
-	length = tail - *ptr;
-	if (length == 0) {
-		LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", *ptr);
-		return -EINVAL;
-	}
-
-	if (lmd->lmd_mgs != NULL)
-		oldlen = strlen(lmd->lmd_mgs) + 1;
-
-	mgsnid = kzalloc(oldlen + length + 1, GFP_NOFS);
-	if (!mgsnid)
-		return -ENOMEM;
-
-	if (lmd->lmd_mgs != NULL) {
-		/* Multiple mgsnid= are taken to mean failover locations */
-		memcpy(mgsnid, lmd->lmd_mgs, oldlen);
-		mgsnid[oldlen - 1] = ':';
-		kfree(lmd->lmd_mgs);
-	}
-	memcpy(mgsnid + oldlen, *ptr, length);
-	mgsnid[oldlen + length] = '\0';
-	lmd->lmd_mgs = mgsnid;
-	*ptr = tail;
-
-	return 0;
-}
-
-/** Parse mount line options
- * e.g. mount -v -t lustre -o abort_recov uml1:uml2:/lustre-client /mnt/lustre
- * dev is passed as device=uml1:/lustre by mount.lustre
- */
-static int lmd_parse(char *options, struct lustre_mount_data *lmd)
-{
-	char *s1, *s2, *devname = NULL;
-	struct lustre_mount_data *raw = (struct lustre_mount_data *)options;
-	int rc = 0;
-
-	LASSERT(lmd);
-	if (!options) {
-		LCONSOLE_ERROR_MSG(0x162, "Missing mount data: check that /sbin/mount.lustre is installed.\n");
-		return -EINVAL;
-	}
-
-	/* Options should be a string - try to detect old lmd data */
-	if ((raw->lmd_magic & 0xffffff00) == (LMD_MAGIC & 0xffffff00)) {
-		LCONSOLE_ERROR_MSG(0x163, "You're using an old version of /sbin/mount.lustre.  Please install version %s\n",
-				   LUSTRE_VERSION_STRING);
-		return -EINVAL;
-	}
-	lmd->lmd_magic = LMD_MAGIC;
-
-	lmd->lmd_params = kzalloc(4096, GFP_NOFS);
-	if (!lmd->lmd_params)
-		return -ENOMEM;
-	lmd->lmd_params[0] = '\0';
-
-	/* Set default flags here */
-
-	s1 = options;
-	while (*s1) {
-		int clear = 0;
-		int time_min = OBD_RECOVERY_TIME_MIN;
-
-		/* Skip whitespace and extra commas */
-		while (*s1 == ' ' || *s1 == ',')
-			s1++;
-
-		/* Client options are parsed in ll_options: eg. flock,
-		   user_xattr, acl */
-
-		/* Parse non-ldiskfs options here. Rather than modifying
-		   ldiskfs, we just zero these out here */
-		if (strncmp(s1, "abort_recov", 11) == 0) {
-			lmd->lmd_flags |= LMD_FLG_ABORT_RECOV;
-			clear++;
-		} else if (strncmp(s1, "recovery_time_soft=", 19) == 0) {
-			lmd->lmd_recovery_time_soft = max_t(int,
-				simple_strtoul(s1 + 19, NULL, 10), time_min);
-			clear++;
-		} else if (strncmp(s1, "recovery_time_hard=", 19) == 0) {
-			lmd->lmd_recovery_time_hard = max_t(int,
-				simple_strtoul(s1 + 19, NULL, 10), time_min);
-			clear++;
-		} else if (strncmp(s1, "noir", 4) == 0) {
-			lmd->lmd_flags |= LMD_FLG_NOIR; /* test purpose only. */
-			clear++;
-		} else if (strncmp(s1, "nosvc", 5) == 0) {
-			lmd->lmd_flags |= LMD_FLG_NOSVC;
-			clear++;
-		} else if (strncmp(s1, "nomgs", 5) == 0) {
-			lmd->lmd_flags |= LMD_FLG_NOMGS;
-			clear++;
-		} else if (strncmp(s1, "noscrub", 7) == 0) {
-			lmd->lmd_flags |= LMD_FLG_NOSCRUB;
-			clear++;
-		} else if (strncmp(s1, PARAM_MGSNODE,
-				   sizeof(PARAM_MGSNODE) - 1) == 0) {
-			s2 = s1 + sizeof(PARAM_MGSNODE) - 1;
-			/* Assume the next mount opt is the first
-			   invalid nid we get to. */
-			rc = lmd_parse_mgs(lmd, &s2);
-			if (rc)
-				goto invalid;
-			clear++;
-		} else if (strncmp(s1, "writeconf", 9) == 0) {
-			lmd->lmd_flags |= LMD_FLG_WRITECONF;
-			clear++;
-		} else if (strncmp(s1, "update", 6) == 0) {
-			lmd->lmd_flags |= LMD_FLG_UPDATE;
-			clear++;
-		} else if (strncmp(s1, "virgin", 6) == 0) {
-			lmd->lmd_flags |= LMD_FLG_VIRGIN;
-			clear++;
-		} else if (strncmp(s1, "noprimnode", 10) == 0) {
-			lmd->lmd_flags |= LMD_FLG_NO_PRIMNODE;
-			clear++;
-		} else if (strncmp(s1, "mgssec=", 7) == 0) {
-			rc = lmd_parse_mgssec(lmd, s1 + 7);
-			if (rc)
-				goto invalid;
-			clear++;
-		/* ost exclusion list */
-		} else if (strncmp(s1, "exclude=", 8) == 0) {
-			rc = lmd_make_exclusion(lmd, s1 + 7);
-			if (rc)
-				goto invalid;
-			clear++;
-		} else if (strncmp(s1, "mgs", 3) == 0) {
-			/* We are an MGS */
-			lmd->lmd_flags |= LMD_FLG_MGS;
-			clear++;
-		} else if (strncmp(s1, "svname=", 7) == 0) {
-			rc = lmd_parse_string(&lmd->lmd_profile, s1 + 7);
-			if (rc)
-				goto invalid;
-			clear++;
-		} else if (strncmp(s1, "param=", 6) == 0) {
-			int length;
-			char *tail = strchr(s1 + 6, ',');
-			if (tail == NULL)
-				length = strlen(s1);
-			else
-				length = tail - s1;
-			length -= 6;
-			strncat(lmd->lmd_params, s1 + 6, length);
-			strcat(lmd->lmd_params, " ");
-			clear++;
-		} else if (strncmp(s1, "osd=", 4) == 0) {
-			rc = lmd_parse_string(&lmd->lmd_osd_type, s1 + 4);
-			if (rc)
-				goto invalid;
-			clear++;
-		}
-		/* Linux 2.4 doesn't pass the device, so we stuck it at the
-		   end of the options. */
-		else if (strncmp(s1, "device=", 7) == 0) {
-			devname = s1 + 7;
-			/* terminate options right before device.  device
-			   must be the last one. */
-			*s1 = '\0';
-			break;
-		}
-
-		/* Find next opt */
-		s2 = strchr(s1, ',');
-		if (s2 == NULL) {
-			if (clear)
-				*s1 = '\0';
-			break;
-		}
-		s2++;
-		if (clear)
-			memmove(s1, s2, strlen(s2) + 1);
-		else
-			s1 = s2;
-	}
-
-	if (!devname) {
-		LCONSOLE_ERROR_MSG(0x164, "Can't find the device name (need mount option 'device=...')\n");
-		goto invalid;
-	}
-
-	s1 = strstr(devname, ":/");
-	if (s1) {
-		++s1;
-		lmd->lmd_flags |= LMD_FLG_CLIENT;
-		/* Remove leading /s from fsname */
-		while (*++s1 == '/') ;
-		/* Freed in lustre_free_lsi */
-		lmd->lmd_profile = kasprintf(GFP_NOFS, "%s-client", s1);
-		if (!lmd->lmd_profile)
-			return -ENOMEM;
-	}
-
-	/* Freed in lustre_free_lsi */
-	lmd->lmd_dev = kzalloc(strlen(devname) + 1, GFP_NOFS);
-	if (!lmd->lmd_dev)
-		return -ENOMEM;
-	strcpy(lmd->lmd_dev, devname);
-
-	/* Save mount options */
-	s1 = options + strlen(options) - 1;
-	while (s1 >= options && (*s1 == ',' || *s1 == ' '))
-		*s1-- = 0;
-	if (*options != 0) {
-		/* Freed in lustre_free_lsi */
-		lmd->lmd_opts = kzalloc(strlen(options) + 1, GFP_NOFS);
-		if (!lmd->lmd_opts)
-			return -ENOMEM;
-		strcpy(lmd->lmd_opts, options);
-	}
-
-	lmd_print(lmd);
-	lmd->lmd_magic = LMD_MAGIC;
-
-	return rc;
-
-invalid:
-	CERROR("Bad mount options %s\n", options);
-	return -EINVAL;
-}
-
-struct lustre_mount_data2 {
-	void *lmd2_data;
-	struct vfsmount *lmd2_mnt;
-};
-
-/** This is the entry point for the mount call into Lustre.
- * This is called when a server or client is mounted,
- * and this is where we start setting things up.
- * @param data Mount options (e.g. -o flock,abort_recov)
- */
-int lustre_fill_super(struct super_block *sb, void *data, int silent)
-{
-	struct lustre_mount_data *lmd;
-	struct lustre_mount_data2 *lmd2 = data;
-	struct lustre_sb_info *lsi;
-	int rc;
-
-	CDEBUG(D_MOUNT|D_VFSTRACE, "VFS Op: sb %p\n", sb);
-
-	lsi = lustre_init_lsi(sb);
-	if (!lsi)
-		return -ENOMEM;
-	lmd = lsi->lsi_lmd;
-
-	/*
-	 * Disable lockdep during mount, because mount locking patterns are
-	 * `special'.
-	 */
-	lockdep_off();
-
-	/*
-	 * LU-639: the obd cleanup of last mount may not finish yet, wait here.
-	 */
-	obd_zombie_barrier();
-
-	/* Figure out the lmd from the mount options */
-	if (lmd_parse((char *)(lmd2->lmd2_data), lmd)) {
-		lustre_put_lsi(sb);
-		rc = -EINVAL;
-		goto out;
-	}
-
-	if (lmd_is_client(lmd)) {
-		CDEBUG(D_MOUNT, "Mounting client %s\n", lmd->lmd_profile);
-		if (client_fill_super == NULL)
-			request_module("lustre");
-		if (client_fill_super == NULL) {
-			LCONSOLE_ERROR_MSG(0x165, "Nothing registered for client mount! Is the 'lustre' module loaded?\n");
-			lustre_put_lsi(sb);
-			rc = -ENODEV;
-		} else {
-			rc = lustre_start_mgc(sb);
-			if (rc) {
-				lustre_put_lsi(sb);
-				goto out;
-			}
-			/* Connect and start */
-			/* (should always be ll_fill_super) */
-			rc = (*client_fill_super)(sb, lmd2->lmd2_mnt);
-			/* c_f_s will call lustre_common_put_super on failure */
-		}
-	} else {
-		CERROR("This is client-side-only module, cannot handle server mount.\n");
-		rc = -EINVAL;
-	}
-
-	/* If error happens in fill_super() call, @lsi will be killed there.
-	 * This is why we do not put it here. */
-	goto out;
-out:
-	if (rc) {
-		CERROR("Unable to mount %s (%d)\n",
-		       s2lsi(sb) ? lmd->lmd_dev : "", rc);
-	} else {
-		CDEBUG(D_SUPER, "Mount %s complete\n",
-		       lmd->lmd_dev);
-	}
-	lockdep_on();
-	return rc;
-}
-
-
-/* We can't call ll_fill_super by name because it lives in a module that
-   must be loaded after this one. */
-void lustre_register_client_fill_super(int (*cfs)(struct super_block *sb,
-						  struct vfsmount *mnt))
-{
-	client_fill_super = cfs;
-}
-EXPORT_SYMBOL(lustre_register_client_fill_super);
-
-void lustre_register_kill_super_cb(void (*cfs)(struct super_block *sb))
-{
-	kill_super_cb = cfs;
-}
-EXPORT_SYMBOL(lustre_register_kill_super_cb);
-
-/***************** FS registration ******************/
-struct dentry *lustre_mount(struct file_system_type *fs_type, int flags,
-				const char *devname, void *data)
-{
-	struct lustre_mount_data2 lmd2 = {
-		.lmd2_data = data,
-		.lmd2_mnt = NULL
-	};
-
-	return mount_nodev(fs_type, flags, &lmd2, lustre_fill_super);
-}
-
-static void lustre_kill_super(struct super_block *sb)
-{
-	struct lustre_sb_info *lsi = s2lsi(sb);
-
-	if (kill_super_cb && lsi && !IS_SERVER(lsi))
-		(*kill_super_cb)(sb);
-
-	kill_anon_super(sb);
-}
-
-/** Register the "lustre" fs type
- */
-struct file_system_type lustre_fs_type = {
-	.owner	= THIS_MODULE,
-	.name	 = "lustre",
-	.mount	= lustre_mount,
-	.kill_sb      = lustre_kill_super,
-	.fs_flags     = FS_BINARY_MOUNTDATA | FS_REQUIRES_DEV |
-			FS_RENAME_DOES_D_MOVE,
-};
-MODULE_ALIAS_FS("lustre");
-
-int lustre_register_fs(void)
-{
-	return register_filesystem(&lustre_fs_type);
-}
-
-int lustre_unregister_fs(void)
-{
-	return unregister_filesystem(&lustre_fs_type);
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/obdo.c b/drivers/staging/lustre/lustre/obdclass/obdo.c
deleted file mode 100644
index 307ffe347186..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/obdo.c
+++ /dev/null
@@ -1,362 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/obdo.c
- *
- * Object Devices Class Driver
- * These are the only exported functions, they provide some generic
- * infrastructure for managing object devices
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../include/obd_class.h"
-#include "../include/lustre/lustre_idl.h"
-
-void obdo_set_parent_fid(struct obdo *dst, const struct lu_fid *parent)
-{
-	dst->o_parent_oid = fid_oid(parent);
-	dst->o_parent_seq = fid_seq(parent);
-	dst->o_parent_ver = fid_ver(parent);
-	dst->o_valid |= OBD_MD_FLGENER | OBD_MD_FLFID;
-}
-EXPORT_SYMBOL(obdo_set_parent_fid);
-
-/* WARNING: the file systems must take care not to tinker with
-   attributes they don't manage (such as blocks). */
-void obdo_from_inode(struct obdo *dst, struct inode *src, u32 valid)
-{
-	u32 newvalid = 0;
-
-	if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
-		CDEBUG(D_INODE, "valid %x, new time %lu/%lu\n",
-		       valid, LTIME_S(src->i_mtime),
-		       LTIME_S(src->i_ctime));
-
-	if (valid & OBD_MD_FLATIME) {
-		dst->o_atime = LTIME_S(src->i_atime);
-		newvalid |= OBD_MD_FLATIME;
-	}
-	if (valid & OBD_MD_FLMTIME) {
-		dst->o_mtime = LTIME_S(src->i_mtime);
-		newvalid |= OBD_MD_FLMTIME;
-	}
-	if (valid & OBD_MD_FLCTIME) {
-		dst->o_ctime = LTIME_S(src->i_ctime);
-		newvalid |= OBD_MD_FLCTIME;
-	}
-	if (valid & OBD_MD_FLSIZE) {
-		dst->o_size = i_size_read(src);
-		newvalid |= OBD_MD_FLSIZE;
-	}
-	if (valid & OBD_MD_FLBLOCKS) {  /* allocation of space (x512 bytes) */
-		dst->o_blocks = src->i_blocks;
-		newvalid |= OBD_MD_FLBLOCKS;
-	}
-	if (valid & OBD_MD_FLBLKSZ) {   /* optimal block size */
-		dst->o_blksize = 1 << src->i_blkbits;
-		newvalid |= OBD_MD_FLBLKSZ;
-	}
-	if (valid & OBD_MD_FLTYPE) {
-		dst->o_mode = (dst->o_mode & S_IALLUGO) |
-			      (src->i_mode & S_IFMT);
-		newvalid |= OBD_MD_FLTYPE;
-	}
-	if (valid & OBD_MD_FLMODE) {
-		dst->o_mode = (dst->o_mode & S_IFMT) |
-			      (src->i_mode & S_IALLUGO);
-		newvalid |= OBD_MD_FLMODE;
-	}
-	if (valid & OBD_MD_FLUID) {
-		dst->o_uid = from_kuid(&init_user_ns, src->i_uid);
-		newvalid |= OBD_MD_FLUID;
-	}
-	if (valid & OBD_MD_FLGID) {
-		dst->o_gid = from_kgid(&init_user_ns, src->i_gid);
-		newvalid |= OBD_MD_FLGID;
-	}
-	if (valid & OBD_MD_FLFLAGS) {
-		dst->o_flags = src->i_flags;
-		newvalid |= OBD_MD_FLFLAGS;
-	}
-	dst->o_valid |= newvalid;
-}
-EXPORT_SYMBOL(obdo_from_inode);
-
-void obdo_cpy_md(struct obdo *dst, struct obdo *src, u32 valid)
-{
-	CDEBUG(D_INODE, "src obdo "DOSTID" valid %#llx, dst obdo "DOSTID"\n",
-	       POSTID(&src->o_oi), src->o_valid, POSTID(&dst->o_oi));
-	if (valid & OBD_MD_FLATIME)
-		dst->o_atime = src->o_atime;
-	if (valid & OBD_MD_FLMTIME)
-		dst->o_mtime = src->o_mtime;
-	if (valid & OBD_MD_FLCTIME)
-		dst->o_ctime = src->o_ctime;
-	if (valid & OBD_MD_FLSIZE)
-		dst->o_size = src->o_size;
-	if (valid & OBD_MD_FLBLOCKS) /* allocation of space */
-		dst->o_blocks = src->o_blocks;
-	if (valid & OBD_MD_FLBLKSZ)
-		dst->o_blksize = src->o_blksize;
-	if (valid & OBD_MD_FLTYPE)
-		dst->o_mode = (dst->o_mode & ~S_IFMT) | (src->o_mode & S_IFMT);
-	if (valid & OBD_MD_FLMODE)
-		dst->o_mode = (dst->o_mode & S_IFMT) | (src->o_mode & ~S_IFMT);
-	if (valid & OBD_MD_FLUID)
-		dst->o_uid = src->o_uid;
-	if (valid & OBD_MD_FLGID)
-		dst->o_gid = src->o_gid;
-	if (valid & OBD_MD_FLFLAGS)
-		dst->o_flags = src->o_flags;
-	if (valid & OBD_MD_FLFID) {
-		dst->o_parent_seq = src->o_parent_seq;
-		dst->o_parent_ver = src->o_parent_ver;
-	}
-	if (valid & OBD_MD_FLGENER)
-		dst->o_parent_oid = src->o_parent_oid;
-	if (valid & OBD_MD_FLHANDLE)
-		dst->o_handle = src->o_handle;
-	if (valid & OBD_MD_FLCOOKIE)
-		dst->o_lcookie = src->o_lcookie;
-
-	dst->o_valid |= valid;
-}
-EXPORT_SYMBOL(obdo_cpy_md);
-
-/* returns FALSE if comparison (by flags) is same, TRUE if changed */
-int obdo_cmp_md(struct obdo *dst, struct obdo *src, u32 compare)
-{
-	int res = 0;
-
-	if (compare & OBD_MD_FLATIME)
-		res |= dst->o_atime != src->o_atime;
-	if (compare & OBD_MD_FLMTIME)
-		res |= dst->o_mtime != src->o_mtime;
-	if (compare & OBD_MD_FLCTIME)
-		res |= dst->o_ctime != src->o_ctime;
-	if (compare & OBD_MD_FLSIZE)
-		res |= dst->o_size != src->o_size;
-	if (compare & OBD_MD_FLBLOCKS) /* allocation of space */
-		res |= dst->o_blocks != src->o_blocks;
-	if (compare & OBD_MD_FLBLKSZ)
-		res |= dst->o_blksize != src->o_blksize;
-	if (compare & OBD_MD_FLTYPE)
-		res |= ((dst->o_mode ^ src->o_mode) & S_IFMT) != 0;
-	if (compare & OBD_MD_FLMODE)
-		res |= ((dst->o_mode ^ src->o_mode) & ~S_IFMT) != 0;
-	if (compare & OBD_MD_FLUID)
-		res |= dst->o_uid != src->o_uid;
-	if (compare & OBD_MD_FLGID)
-		res |= dst->o_gid != src->o_gid;
-	if (compare & OBD_MD_FLFLAGS)
-		res |= dst->o_flags != src->o_flags;
-	if (compare & OBD_MD_FLNLINK)
-		res |= dst->o_nlink != src->o_nlink;
-	if (compare & OBD_MD_FLFID) {
-		res |= dst->o_parent_seq != src->o_parent_seq;
-		res |= dst->o_parent_ver != src->o_parent_ver;
-	}
-	if (compare & OBD_MD_FLGENER)
-		res |= dst->o_parent_oid != src->o_parent_oid;
-	/* XXX Don't know if these should be included here - wasn't previously
-	if ( compare & OBD_MD_FLINLINE )
-		res |= memcmp(dst->o_inline, src->o_inline);
-	*/
-	return res;
-}
-EXPORT_SYMBOL(obdo_cmp_md);
-
-void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj)
-{
-	ioobj->ioo_oid = oa->o_oi;
-	if (unlikely(!(oa->o_valid & OBD_MD_FLGROUP)))
-		ostid_set_seq_mdt0(&ioobj->ioo_oid);
-
-	/* Since 2.4 this does not contain o_mode in the low 16 bits.
-	 * Instead, it holds (bd_md_max_brw - 1) for multi-bulk BRW RPCs */
-	ioobj->ioo_max_brw = 0;
-}
-EXPORT_SYMBOL(obdo_to_ioobj);
-
-void obdo_from_iattr(struct obdo *oa, struct iattr *attr, unsigned int ia_valid)
-{
-	if (ia_valid & ATTR_ATIME) {
-		oa->o_atime = LTIME_S(attr->ia_atime);
-		oa->o_valid |= OBD_MD_FLATIME;
-	}
-	if (ia_valid & ATTR_MTIME) {
-		oa->o_mtime = LTIME_S(attr->ia_mtime);
-		oa->o_valid |= OBD_MD_FLMTIME;
-	}
-	if (ia_valid & ATTR_CTIME) {
-		oa->o_ctime = LTIME_S(attr->ia_ctime);
-		oa->o_valid |= OBD_MD_FLCTIME;
-	}
-	if (ia_valid & ATTR_SIZE) {
-		oa->o_size = attr->ia_size;
-		oa->o_valid |= OBD_MD_FLSIZE;
-	}
-	if (ia_valid & ATTR_MODE) {
-		oa->o_mode = attr->ia_mode;
-		oa->o_valid |= OBD_MD_FLTYPE | OBD_MD_FLMODE;
-		if (!in_group_p(make_kgid(&init_user_ns, oa->o_gid)) &&
-		    !capable(CFS_CAP_FSETID))
-			oa->o_mode &= ~S_ISGID;
-	}
-	if (ia_valid & ATTR_UID) {
-		oa->o_uid = from_kuid(&init_user_ns, attr->ia_uid);
-		oa->o_valid |= OBD_MD_FLUID;
-	}
-	if (ia_valid & ATTR_GID) {
-		oa->o_gid = from_kgid(&init_user_ns, attr->ia_gid);
-		oa->o_valid |= OBD_MD_FLGID;
-	}
-}
-EXPORT_SYMBOL(obdo_from_iattr);
-
-void iattr_from_obdo(struct iattr *attr, struct obdo *oa, u32 valid)
-{
-	valid &= oa->o_valid;
-
-	if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
-		CDEBUG(D_INODE, "valid %#llx, new time %llu/%llu\n",
-		       oa->o_valid, oa->o_mtime, oa->o_ctime);
-
-	attr->ia_valid = 0;
-	if (valid & OBD_MD_FLATIME) {
-		LTIME_S(attr->ia_atime) = oa->o_atime;
-		attr->ia_valid |= ATTR_ATIME;
-	}
-	if (valid & OBD_MD_FLMTIME) {
-		LTIME_S(attr->ia_mtime) = oa->o_mtime;
-		attr->ia_valid |= ATTR_MTIME;
-	}
-	if (valid & OBD_MD_FLCTIME) {
-		LTIME_S(attr->ia_ctime) = oa->o_ctime;
-		attr->ia_valid |= ATTR_CTIME;
-	}
-	if (valid & OBD_MD_FLSIZE) {
-		attr->ia_size = oa->o_size;
-		attr->ia_valid |= ATTR_SIZE;
-	}
-#if 0   /* you shouldn't be able to change a file's type with setattr */
-	if (valid & OBD_MD_FLTYPE) {
-		attr->ia_mode = (attr->ia_mode & ~S_IFMT)|(oa->o_mode & S_IFMT);
-		attr->ia_valid |= ATTR_MODE;
-	}
-#endif
-	if (valid & OBD_MD_FLMODE) {
-		attr->ia_mode = (attr->ia_mode & S_IFMT)|(oa->o_mode & ~S_IFMT);
-		attr->ia_valid |= ATTR_MODE;
-		if (!in_group_p(make_kgid(&init_user_ns, oa->o_gid)) &&
-		    !capable(CFS_CAP_FSETID))
-			attr->ia_mode &= ~S_ISGID;
-	}
-	if (valid & OBD_MD_FLUID) {
-		attr->ia_uid = make_kuid(&init_user_ns, oa->o_uid);
-		attr->ia_valid |= ATTR_UID;
-	}
-	if (valid & OBD_MD_FLGID) {
-		attr->ia_gid = make_kgid(&init_user_ns, oa->o_gid);
-		attr->ia_valid |= ATTR_GID;
-	}
-}
-EXPORT_SYMBOL(iattr_from_obdo);
-
-void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, u32 valid)
-{
-	iattr_from_obdo(&op_data->op_attr, oa, valid);
-	if (valid & OBD_MD_FLBLOCKS) {
-		op_data->op_attr_blocks = oa->o_blocks;
-		op_data->op_attr.ia_valid |= ATTR_BLOCKS;
-	}
-	if (valid & OBD_MD_FLFLAGS) {
-		((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags =
-			oa->o_flags;
-		op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
-	}
-}
-EXPORT_SYMBOL(md_from_obdo);
-
-void obdo_from_md(struct obdo *oa, struct md_op_data *op_data,
-		  unsigned int valid)
-{
-	obdo_from_iattr(oa, &op_data->op_attr, valid);
-	if (valid & ATTR_BLOCKS) {
-		oa->o_blocks = op_data->op_attr_blocks;
-		oa->o_valid |= OBD_MD_FLBLOCKS;
-	}
-	if (valid & ATTR_ATTR_FLAG) {
-		oa->o_flags =
-			((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags;
-		oa->o_valid |= OBD_MD_FLFLAGS;
-	}
-}
-EXPORT_SYMBOL(obdo_from_md);
-
-void obdo_cpu_to_le(struct obdo *dobdo, struct obdo *sobdo)
-{
-	dobdo->o_size = cpu_to_le64(sobdo->o_size);
-	dobdo->o_mtime = cpu_to_le64(sobdo->o_mtime);
-	dobdo->o_atime = cpu_to_le64(sobdo->o_atime);
-	dobdo->o_ctime = cpu_to_le64(sobdo->o_ctime);
-	dobdo->o_blocks = cpu_to_le64(sobdo->o_blocks);
-	dobdo->o_mode = cpu_to_le32(sobdo->o_mode);
-	dobdo->o_uid = cpu_to_le32(sobdo->o_uid);
-	dobdo->o_gid = cpu_to_le32(sobdo->o_gid);
-	dobdo->o_flags = cpu_to_le32(sobdo->o_flags);
-	dobdo->o_nlink = cpu_to_le32(sobdo->o_nlink);
-	dobdo->o_blksize = cpu_to_le32(sobdo->o_blksize);
-	dobdo->o_valid = cpu_to_le64(sobdo->o_valid);
-}
-EXPORT_SYMBOL(obdo_cpu_to_le);
-
-void obdo_le_to_cpu(struct obdo *dobdo, struct obdo *sobdo)
-{
-	dobdo->o_size = le64_to_cpu(sobdo->o_size);
-	dobdo->o_mtime = le64_to_cpu(sobdo->o_mtime);
-	dobdo->o_atime = le64_to_cpu(sobdo->o_atime);
-	dobdo->o_ctime = le64_to_cpu(sobdo->o_ctime);
-	dobdo->o_blocks = le64_to_cpu(sobdo->o_blocks);
-	dobdo->o_mode = le32_to_cpu(sobdo->o_mode);
-	dobdo->o_uid = le32_to_cpu(sobdo->o_uid);
-	dobdo->o_gid = le32_to_cpu(sobdo->o_gid);
-	dobdo->o_flags = le32_to_cpu(sobdo->o_flags);
-	dobdo->o_nlink = le32_to_cpu(sobdo->o_nlink);
-	dobdo->o_blksize = le32_to_cpu(sobdo->o_blksize);
-	dobdo->o_valid = le64_to_cpu(sobdo->o_valid);
-}
-EXPORT_SYMBOL(obdo_le_to_cpu);
diff --git a/drivers/staging/lustre/lustre/obdclass/statfs_pack.c b/drivers/staging/lustre/lustre/obdclass/statfs_pack.c
deleted file mode 100644
index cc785ab3f29a..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/statfs_pack.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/statfs_pack.c
- *
- * (Un)packing of OST/MDS requests
- *
- * Author: Andreas Dilger <adilger@clusterfs.com>
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/statfs.h>
-#include "../include/lustre_export.h"
-#include "../include/lustre_net.h"
-#include "../include/obd_support.h"
-#include "../include/obd_class.h"
-
-void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs)
-{
-	memset(osfs, 0, sizeof(*osfs));
-	osfs->os_type = sfs->f_type;
-	osfs->os_blocks = sfs->f_blocks;
-	osfs->os_bfree = sfs->f_bfree;
-	osfs->os_bavail = sfs->f_bavail;
-	osfs->os_files = sfs->f_files;
-	osfs->os_ffree = sfs->f_ffree;
-	osfs->os_bsize = sfs->f_bsize;
-	osfs->os_namelen = sfs->f_namelen;
-}
-EXPORT_SYMBOL(statfs_pack);
-
-void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs)
-{
-	memset(sfs, 0, sizeof(*sfs));
-	sfs->f_type = osfs->os_type;
-	sfs->f_blocks = osfs->os_blocks;
-	sfs->f_bfree = osfs->os_bfree;
-	sfs->f_bavail = osfs->os_bavail;
-	sfs->f_files = osfs->os_files;
-	sfs->f_ffree = osfs->os_ffree;
-	sfs->f_bsize = osfs->os_bsize;
-	sfs->f_namelen = osfs->os_namelen;
-}
-EXPORT_SYMBOL(statfs_unpack);
diff --git a/drivers/staging/lustre/lustre/obdclass/uuid.c b/drivers/staging/lustre/lustre/obdclass/uuid.c
deleted file mode 100644
index b0b0157a6334..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/uuid.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/uuid.c
- *
- * Public include file for the UUID library
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd_support.h"
-#include "../include/obd_class.h"
-
-void class_uuid_unparse(class_uuid_t uu, struct obd_uuid *out)
-{
-	sprintf(out->uuid, "%pU", uu);
-}
-EXPORT_SYMBOL(class_uuid_unparse);
diff --git a/drivers/staging/lustre/lustre/obdecho/Makefile b/drivers/staging/lustre/lustre/obdecho/Makefile
deleted file mode 100644
index a659a37a7e93..000000000000
--- a/drivers/staging/lustre/lustre/obdecho/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += obdecho.o
-obdecho-y := echo_client.o
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
deleted file mode 100644
index 27bd170c3a28..000000000000
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ /dev/null
@@ -1,2186 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_ECHO
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd.h"
-#include "../include/obd_support.h"
-#include "../include/obd_class.h"
-#include "../include/lustre_debug.h"
-#include "../include/lprocfs_status.h"
-#include "../include/cl_object.h"
-#include "../include/lustre_fid.h"
-#include "../include/lustre_acl.h"
-#include "../include/lustre_net.h"
-
-#include "echo_internal.h"
-
-/** \defgroup echo_client Echo Client
- * @{
- */
-
-struct echo_device {
-	struct cl_device	ed_cl;
-	struct echo_client_obd *ed_ec;
-
-	struct cl_site	  ed_site_myself;
-	struct cl_site	 *ed_site;
-	struct lu_device       *ed_next;
-	int		     ed_next_islov;
-};
-
-struct echo_object {
-	struct cl_object	eo_cl;
-	struct cl_object_header eo_hdr;
-
-	struct echo_device     *eo_dev;
-	struct list_head	      eo_obj_chain;
-	struct lov_stripe_md   *eo_lsm;
-	atomic_t	    eo_npages;
-	int		     eo_deleted;
-};
-
-struct echo_object_conf {
-	struct cl_object_conf  eoc_cl;
-	struct lov_stripe_md **eoc_md;
-};
-
-struct echo_page {
-	struct cl_page_slice   ep_cl;
-	struct mutex		ep_lock;
-	struct page	    *ep_vmpage;
-};
-
-struct echo_lock {
-	struct cl_lock_slice   el_cl;
-	struct list_head	     el_chain;
-	struct echo_object    *el_object;
-	__u64		  el_cookie;
-	atomic_t	   el_refcount;
-};
-
-static int echo_client_setup(const struct lu_env *env,
-			     struct obd_device *obddev,
-			     struct lustre_cfg *lcfg);
-static int echo_client_cleanup(struct obd_device *obddev);
-
-
-/** \defgroup echo_helpers Helper functions
- * @{
- */
-static inline struct echo_device *cl2echo_dev(const struct cl_device *dev)
-{
-	return container_of0(dev, struct echo_device, ed_cl);
-}
-
-static inline struct cl_device *echo_dev2cl(struct echo_device *d)
-{
-	return &d->ed_cl;
-}
-
-static inline struct echo_device *obd2echo_dev(const struct obd_device *obd)
-{
-	return cl2echo_dev(lu2cl_dev(obd->obd_lu_dev));
-}
-
-static inline struct cl_object *echo_obj2cl(struct echo_object *eco)
-{
-	return &eco->eo_cl;
-}
-
-static inline struct echo_object *cl2echo_obj(const struct cl_object *o)
-{
-	return container_of(o, struct echo_object, eo_cl);
-}
-
-static inline struct echo_page *cl2echo_page(const struct cl_page_slice *s)
-{
-	return container_of(s, struct echo_page, ep_cl);
-}
-
-static inline struct echo_lock *cl2echo_lock(const struct cl_lock_slice *s)
-{
-	return container_of(s, struct echo_lock, el_cl);
-}
-
-static inline struct cl_lock *echo_lock2cl(const struct echo_lock *ecl)
-{
-	return ecl->el_cl.cls_lock;
-}
-
-static struct lu_context_key echo_thread_key;
-static inline struct echo_thread_info *echo_env_info(const struct lu_env *env)
-{
-	struct echo_thread_info *info;
-
-	info = lu_context_key_get(&env->le_ctx, &echo_thread_key);
-	LASSERT(info != NULL);
-	return info;
-}
-
-static inline
-struct echo_object_conf *cl2echo_conf(const struct cl_object_conf *c)
-{
-	return container_of(c, struct echo_object_conf, eoc_cl);
-}
-
-/** @} echo_helpers */
-
-static struct echo_object *cl_echo_object_find(struct echo_device *d,
-					       struct lov_stripe_md **lsm);
-static int cl_echo_object_put(struct echo_object *eco);
-static int cl_echo_enqueue(struct echo_object *eco, u64 start,
-			   u64 end, int mode, __u64 *cookie);
-static int cl_echo_cancel(struct echo_device *d, __u64 cookie);
-static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset,
-			      struct page **pages, int npages, int async);
-
-static struct echo_thread_info *echo_env_info(const struct lu_env *env);
-
-struct echo_thread_info {
-	struct echo_object_conf eti_conf;
-	struct lustre_md	eti_md;
-
-	struct cl_2queue	eti_queue;
-	struct cl_io	    eti_io;
-	struct cl_lock_descr    eti_descr;
-	struct lu_fid	   eti_fid;
-	struct lu_fid		eti_fid2;
-};
-
-/* No session used right now */
-struct echo_session_info {
-	unsigned long dummy;
-};
-
-static struct kmem_cache *echo_lock_kmem;
-static struct kmem_cache *echo_object_kmem;
-static struct kmem_cache *echo_thread_kmem;
-static struct kmem_cache *echo_session_kmem;
-
-static struct lu_kmem_descr echo_caches[] = {
-	{
-		.ckd_cache = &echo_lock_kmem,
-		.ckd_name  = "echo_lock_kmem",
-		.ckd_size  = sizeof(struct echo_lock)
-	},
-	{
-		.ckd_cache = &echo_object_kmem,
-		.ckd_name  = "echo_object_kmem",
-		.ckd_size  = sizeof(struct echo_object)
-	},
-	{
-		.ckd_cache = &echo_thread_kmem,
-		.ckd_name  = "echo_thread_kmem",
-		.ckd_size  = sizeof(struct echo_thread_info)
-	},
-	{
-		.ckd_cache = &echo_session_kmem,
-		.ckd_name  = "echo_session_kmem",
-		.ckd_size  = sizeof(struct echo_session_info)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-/** \defgroup echo_page Page operations
- *
- * Echo page operations.
- *
- * @{
- */
-static struct page *echo_page_vmpage(const struct lu_env *env,
-				    const struct cl_page_slice *slice)
-{
-	return cl2echo_page(slice)->ep_vmpage;
-}
-
-static int echo_page_own(const struct lu_env *env,
-			 const struct cl_page_slice *slice,
-			 struct cl_io *io, int nonblock)
-{
-	struct echo_page *ep = cl2echo_page(slice);
-
-	if (!nonblock)
-		mutex_lock(&ep->ep_lock);
-	else if (!mutex_trylock(&ep->ep_lock))
-		return -EAGAIN;
-	return 0;
-}
-
-static void echo_page_disown(const struct lu_env *env,
-			     const struct cl_page_slice *slice,
-			     struct cl_io *io)
-{
-	struct echo_page *ep = cl2echo_page(slice);
-
-	LASSERT(mutex_is_locked(&ep->ep_lock));
-	mutex_unlock(&ep->ep_lock);
-}
-
-static void echo_page_discard(const struct lu_env *env,
-			      const struct cl_page_slice *slice,
-			      struct cl_io *unused)
-{
-	cl_page_delete(env, slice->cpl_page);
-}
-
-static int echo_page_is_vmlocked(const struct lu_env *env,
-				 const struct cl_page_slice *slice)
-{
-	if (mutex_is_locked(&cl2echo_page(slice)->ep_lock))
-		return -EBUSY;
-	return -ENODATA;
-}
-
-static void echo_page_completion(const struct lu_env *env,
-				 const struct cl_page_slice *slice,
-				 int ioret)
-{
-	LASSERT(slice->cpl_page->cp_sync_io != NULL);
-}
-
-static void echo_page_fini(const struct lu_env *env,
-			   struct cl_page_slice *slice)
-{
-	struct echo_page *ep    = cl2echo_page(slice);
-	struct echo_object *eco = cl2echo_obj(slice->cpl_obj);
-	struct page *vmpage      = ep->ep_vmpage;
-
-	atomic_dec(&eco->eo_npages);
-	page_cache_release(vmpage);
-}
-
-static int echo_page_prep(const struct lu_env *env,
-			  const struct cl_page_slice *slice,
-			  struct cl_io *unused)
-{
-	return 0;
-}
-
-static int echo_page_print(const struct lu_env *env,
-			   const struct cl_page_slice *slice,
-			   void *cookie, lu_printer_t printer)
-{
-	struct echo_page *ep = cl2echo_page(slice);
-
-	(*printer)(env, cookie, LUSTRE_ECHO_CLIENT_NAME"-page@%p %d vm@%p\n",
-		   ep, mutex_is_locked(&ep->ep_lock), ep->ep_vmpage);
-	return 0;
-}
-
-static const struct cl_page_operations echo_page_ops = {
-	.cpo_own	   = echo_page_own,
-	.cpo_disown	= echo_page_disown,
-	.cpo_discard       = echo_page_discard,
-	.cpo_vmpage	= echo_page_vmpage,
-	.cpo_fini	  = echo_page_fini,
-	.cpo_print	 = echo_page_print,
-	.cpo_is_vmlocked   = echo_page_is_vmlocked,
-	.io = {
-		[CRT_READ] = {
-			.cpo_prep	= echo_page_prep,
-			.cpo_completion  = echo_page_completion,
-		},
-		[CRT_WRITE] = {
-			.cpo_prep	= echo_page_prep,
-			.cpo_completion  = echo_page_completion,
-		}
-	}
-};
-/** @} echo_page */
-
-/** \defgroup echo_lock Locking
- *
- * echo lock operations
- *
- * @{
- */
-static void echo_lock_fini(const struct lu_env *env,
-			   struct cl_lock_slice *slice)
-{
-	struct echo_lock *ecl = cl2echo_lock(slice);
-
-	LASSERT(list_empty(&ecl->el_chain));
-	OBD_SLAB_FREE_PTR(ecl, echo_lock_kmem);
-}
-
-static void echo_lock_delete(const struct lu_env *env,
-			     const struct cl_lock_slice *slice)
-{
-	struct echo_lock *ecl      = cl2echo_lock(slice);
-
-	LASSERT(list_empty(&ecl->el_chain));
-}
-
-static int echo_lock_fits_into(const struct lu_env *env,
-			       const struct cl_lock_slice *slice,
-			       const struct cl_lock_descr *need,
-			       const struct cl_io *unused)
-{
-	return 1;
-}
-
-static struct cl_lock_operations echo_lock_ops = {
-	.clo_fini      = echo_lock_fini,
-	.clo_delete    = echo_lock_delete,
-	.clo_fits_into = echo_lock_fits_into
-};
-
-/** @} echo_lock */
-
-/** \defgroup echo_cl_ops cl_object operations
- *
- * operations for cl_object
- *
- * @{
- */
-static int echo_page_init(const struct lu_env *env, struct cl_object *obj,
-			struct cl_page *page, struct page *vmpage)
-{
-	struct echo_page *ep = cl_object_page_slice(obj, page);
-	struct echo_object *eco = cl2echo_obj(obj);
-
-	ep->ep_vmpage = vmpage;
-	page_cache_get(vmpage);
-	mutex_init(&ep->ep_lock);
-	cl_page_slice_add(page, &ep->ep_cl, obj, &echo_page_ops);
-	atomic_inc(&eco->eo_npages);
-	return 0;
-}
-
-static int echo_io_init(const struct lu_env *env, struct cl_object *obj,
-			struct cl_io *io)
-{
-	return 0;
-}
-
-static int echo_lock_init(const struct lu_env *env,
-			  struct cl_object *obj, struct cl_lock *lock,
-			  const struct cl_io *unused)
-{
-	struct echo_lock *el;
-
-	OBD_SLAB_ALLOC_PTR_GFP(el, echo_lock_kmem, GFP_NOFS);
-	if (el != NULL) {
-		cl_lock_slice_add(lock, &el->el_cl, obj, &echo_lock_ops);
-		el->el_object = cl2echo_obj(obj);
-		INIT_LIST_HEAD(&el->el_chain);
-		atomic_set(&el->el_refcount, 0);
-	}
-	return el == NULL ? -ENOMEM : 0;
-}
-
-static int echo_conf_set(const struct lu_env *env, struct cl_object *obj,
-			 const struct cl_object_conf *conf)
-{
-	return 0;
-}
-
-static const struct cl_object_operations echo_cl_obj_ops = {
-	.coo_page_init = echo_page_init,
-	.coo_lock_init = echo_lock_init,
-	.coo_io_init   = echo_io_init,
-	.coo_conf_set  = echo_conf_set
-};
-/** @} echo_cl_ops */
-
-/** \defgroup echo_lu_ops lu_object operations
- *
- * operations for echo lu object.
- *
- * @{
- */
-static int echo_object_init(const struct lu_env *env, struct lu_object *obj,
-			    const struct lu_object_conf *conf)
-{
-	struct echo_device *ed	 = cl2echo_dev(lu2cl_dev(obj->lo_dev));
-	struct echo_client_obd *ec     = ed->ed_ec;
-	struct echo_object *eco	= cl2echo_obj(lu2cl(obj));
-	const struct cl_object_conf *cconf;
-	struct echo_object_conf *econf;
-
-	if (ed->ed_next) {
-		struct lu_object  *below;
-		struct lu_device  *under;
-
-		under = ed->ed_next;
-		below = under->ld_ops->ldo_object_alloc(env, obj->lo_header,
-							under);
-		if (below == NULL)
-			return -ENOMEM;
-		lu_object_add(obj, below);
-	}
-
-	cconf = lu2cl_conf(conf);
-	econf = cl2echo_conf(cconf);
-
-	LASSERT(econf->eoc_md);
-	eco->eo_lsm = *econf->eoc_md;
-	/* clear the lsm pointer so that it won't get freed. */
-	*econf->eoc_md = NULL;
-
-	eco->eo_dev = ed;
-	atomic_set(&eco->eo_npages, 0);
-	cl_object_page_init(lu2cl(obj), sizeof(struct echo_page));
-
-	spin_lock(&ec->ec_lock);
-	list_add_tail(&eco->eo_obj_chain, &ec->ec_objects);
-	spin_unlock(&ec->ec_lock);
-
-	return 0;
-}
-
-/* taken from osc_unpackmd() */
-static int echo_alloc_memmd(struct echo_device *ed,
-			    struct lov_stripe_md **lsmp)
-{
-	int lsm_size;
-
-	/* If export is lov/osc then use their obd method */
-	if (ed->ed_next != NULL)
-		return obd_alloc_memmd(ed->ed_ec->ec_exp, lsmp);
-	/* OFD has no unpackmd method, do everything here */
-	lsm_size = lov_stripe_md_size(1);
-
-	LASSERT(*lsmp == NULL);
-	*lsmp = kzalloc(lsm_size, GFP_NOFS);
-	if (!*lsmp)
-		return -ENOMEM;
-
-	(*lsmp)->lsm_oinfo[0] = kzalloc(sizeof(struct lov_oinfo), GFP_NOFS);
-	if (!(*lsmp)->lsm_oinfo[0]) {
-		kfree(*lsmp);
-		return -ENOMEM;
-	}
-
-	loi_init((*lsmp)->lsm_oinfo[0]);
-	(*lsmp)->lsm_maxbytes = LUSTRE_STRIPE_MAXBYTES;
-	ostid_set_seq_echo(&(*lsmp)->lsm_oi);
-
-	return lsm_size;
-}
-
-static int echo_free_memmd(struct echo_device *ed, struct lov_stripe_md **lsmp)
-{
-	int lsm_size;
-
-	/* If export is lov/osc then use their obd method */
-	if (ed->ed_next != NULL)
-		return obd_free_memmd(ed->ed_ec->ec_exp, lsmp);
-	/* OFD has no unpackmd method, do everything here */
-	lsm_size = lov_stripe_md_size(1);
-
-	LASSERT(*lsmp != NULL);
-	kfree((*lsmp)->lsm_oinfo[0]);
-	kfree(*lsmp);
-	*lsmp = NULL;
-	return 0;
-}
-
-static void echo_object_free(const struct lu_env *env, struct lu_object *obj)
-{
-	struct echo_object *eco    = cl2echo_obj(lu2cl(obj));
-	struct echo_client_obd *ec = eco->eo_dev->ed_ec;
-
-	LASSERT(atomic_read(&eco->eo_npages) == 0);
-
-	spin_lock(&ec->ec_lock);
-	list_del_init(&eco->eo_obj_chain);
-	spin_unlock(&ec->ec_lock);
-
-	lu_object_fini(obj);
-	lu_object_header_fini(obj->lo_header);
-
-	if (eco->eo_lsm)
-		echo_free_memmd(eco->eo_dev, &eco->eo_lsm);
-	OBD_SLAB_FREE_PTR(eco, echo_object_kmem);
-}
-
-static int echo_object_print(const struct lu_env *env, void *cookie,
-			    lu_printer_t p, const struct lu_object *o)
-{
-	struct echo_object *obj = cl2echo_obj(lu2cl(o));
-
-	return (*p)(env, cookie, "echoclient-object@%p", obj);
-}
-
-static const struct lu_object_operations echo_lu_obj_ops = {
-	.loo_object_init      = echo_object_init,
-	.loo_object_delete    = NULL,
-	.loo_object_release   = NULL,
-	.loo_object_free      = echo_object_free,
-	.loo_object_print     = echo_object_print,
-	.loo_object_invariant = NULL
-};
-/** @} echo_lu_ops */
-
-/** \defgroup echo_lu_dev_ops  lu_device operations
- *
- * Operations for echo lu device.
- *
- * @{
- */
-static struct lu_object *echo_object_alloc(const struct lu_env *env,
-					   const struct lu_object_header *hdr,
-					   struct lu_device *dev)
-{
-	struct echo_object *eco;
-	struct lu_object *obj = NULL;
-
-	/* we're the top dev. */
-	LASSERT(hdr == NULL);
-	OBD_SLAB_ALLOC_PTR_GFP(eco, echo_object_kmem, GFP_NOFS);
-	if (eco != NULL) {
-		struct cl_object_header *hdr = &eco->eo_hdr;
-
-		obj = &echo_obj2cl(eco)->co_lu;
-		cl_object_header_init(hdr);
-		lu_object_init(obj, &hdr->coh_lu, dev);
-		lu_object_add_top(&hdr->coh_lu, obj);
-
-		eco->eo_cl.co_ops = &echo_cl_obj_ops;
-		obj->lo_ops       = &echo_lu_obj_ops;
-	}
-	return obj;
-}
-
-static struct lu_device_operations echo_device_lu_ops = {
-	.ldo_object_alloc   = echo_object_alloc,
-};
-
-/** @} echo_lu_dev_ops */
-
-static struct cl_device_operations echo_device_cl_ops = {
-};
-
-/** \defgroup echo_init Setup and teardown
- *
- * Init and fini functions for echo client.
- *
- * @{
- */
-static int echo_site_init(const struct lu_env *env, struct echo_device *ed)
-{
-	struct cl_site *site = &ed->ed_site_myself;
-	int rc;
-
-	/* initialize site */
-	rc = cl_site_init(site, &ed->ed_cl);
-	if (rc) {
-		CERROR("Cannot initialize site for echo client(%d)\n", rc);
-		return rc;
-	}
-
-	rc = lu_site_init_finish(&site->cs_lu);
-	if (rc)
-		return rc;
-
-	ed->ed_site = site;
-	return 0;
-}
-
-static void echo_site_fini(const struct lu_env *env, struct echo_device *ed)
-{
-	if (ed->ed_site) {
-		cl_site_fini(ed->ed_site);
-		ed->ed_site = NULL;
-	}
-}
-
-static void *echo_thread_key_init(const struct lu_context *ctx,
-			  struct lu_context_key *key)
-{
-	struct echo_thread_info *info;
-
-	OBD_SLAB_ALLOC_PTR_GFP(info, echo_thread_kmem, GFP_NOFS);
-	if (info == NULL)
-		info = ERR_PTR(-ENOMEM);
-	return info;
-}
-
-static void echo_thread_key_fini(const struct lu_context *ctx,
-			 struct lu_context_key *key, void *data)
-{
-	struct echo_thread_info *info = data;
-
-	OBD_SLAB_FREE_PTR(info, echo_thread_kmem);
-}
-
-static void echo_thread_key_exit(const struct lu_context *ctx,
-			 struct lu_context_key *key, void *data)
-{
-}
-
-static struct lu_context_key echo_thread_key = {
-	.lct_tags = LCT_CL_THREAD,
-	.lct_init = echo_thread_key_init,
-	.lct_fini = echo_thread_key_fini,
-	.lct_exit = echo_thread_key_exit
-};
-
-static void *echo_session_key_init(const struct lu_context *ctx,
-				  struct lu_context_key *key)
-{
-	struct echo_session_info *session;
-
-	OBD_SLAB_ALLOC_PTR_GFP(session, echo_session_kmem, GFP_NOFS);
-	if (session == NULL)
-		session = ERR_PTR(-ENOMEM);
-	return session;
-}
-
-static void echo_session_key_fini(const struct lu_context *ctx,
-				 struct lu_context_key *key, void *data)
-{
-	struct echo_session_info *session = data;
-
-	OBD_SLAB_FREE_PTR(session, echo_session_kmem);
-}
-
-static void echo_session_key_exit(const struct lu_context *ctx,
-				 struct lu_context_key *key, void *data)
-{
-}
-
-static struct lu_context_key echo_session_key = {
-	.lct_tags = LCT_SESSION,
-	.lct_init = echo_session_key_init,
-	.lct_fini = echo_session_key_fini,
-	.lct_exit = echo_session_key_exit
-};
-
-LU_TYPE_INIT_FINI(echo, &echo_thread_key, &echo_session_key);
-
-static struct lu_device *echo_device_alloc(const struct lu_env *env,
-					   struct lu_device_type *t,
-					   struct lustre_cfg *cfg)
-{
-	struct lu_device   *next;
-	struct echo_device *ed;
-	struct cl_device   *cd;
-	struct obd_device  *obd = NULL; /* to keep compiler happy */
-	struct obd_device  *tgt;
-	const char *tgt_type_name;
-	int rc;
-	int cleanup = 0;
-
-	ed = kzalloc(sizeof(*ed), GFP_NOFS);
-	if (!ed) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	cleanup = 1;
-	cd = &ed->ed_cl;
-	rc = cl_device_init(cd, t);
-	if (rc)
-		goto out;
-
-	cd->cd_lu_dev.ld_ops = &echo_device_lu_ops;
-	cd->cd_ops = &echo_device_cl_ops;
-
-	cleanup = 2;
-	obd = class_name2obd(lustre_cfg_string(cfg, 0));
-	LASSERT(obd != NULL);
-	LASSERT(env != NULL);
-
-	tgt = class_name2obd(lustre_cfg_string(cfg, 1));
-	if (tgt == NULL) {
-		CERROR("Can not find tgt device %s\n",
-			lustre_cfg_string(cfg, 1));
-		rc = -ENODEV;
-		goto out;
-	}
-
-	next = tgt->obd_lu_dev;
-	if (!strcmp(tgt->obd_type->typ_name, LUSTRE_MDT_NAME)) {
-		CERROR("echo MDT client must be run on server\n");
-		rc = -EOPNOTSUPP;
-		goto out;
-	}
-
-	rc = echo_site_init(env, ed);
-	if (rc)
-		goto out;
-
-	cleanup = 3;
-
-	rc = echo_client_setup(env, obd, cfg);
-	if (rc)
-		goto out;
-
-	ed->ed_ec = &obd->u.echo_client;
-	cleanup = 4;
-
-	/* if echo client is to be stacked upon ost device, the next is
-	 * NULL since ost is not a clio device so far */
-	if (next != NULL && !lu_device_is_cl(next))
-		next = NULL;
-
-	tgt_type_name = tgt->obd_type->typ_name;
-	if (next != NULL) {
-		LASSERT(next != NULL);
-		if (next->ld_site != NULL) {
-			rc = -EBUSY;
-			goto out;
-		}
-
-		next->ld_site = &ed->ed_site->cs_lu;
-		rc = next->ld_type->ldt_ops->ldto_device_init(env, next,
-						next->ld_type->ldt_name,
-							      NULL);
-		if (rc)
-			goto out;
-
-		/* Tricky case, I have to determine the obd type since
-		 * CLIO uses the different parameters to initialize
-		 * objects for lov & osc. */
-		if (strcmp(tgt_type_name, LUSTRE_LOV_NAME) == 0)
-			ed->ed_next_islov = 1;
-		else
-			LASSERT(strcmp(tgt_type_name,
-				       LUSTRE_OSC_NAME) == 0);
-	} else {
-		LASSERT(strcmp(tgt_type_name, LUSTRE_OST_NAME) == 0);
-	}
-
-	ed->ed_next = next;
-	return &cd->cd_lu_dev;
-out:
-	switch (cleanup) {
-	case 4: {
-		int rc2;
-
-		rc2 = echo_client_cleanup(obd);
-		if (rc2)
-			CERROR("Cleanup obd device %s error(%d)\n",
-			       obd->obd_name, rc2);
-	}
-
-	case 3:
-		echo_site_fini(env, ed);
-	case 2:
-		cl_device_fini(&ed->ed_cl);
-	case 1:
-		kfree(ed);
-	case 0:
-	default:
-		break;
-	}
-	return ERR_PTR(rc);
-}
-
-static int echo_device_init(const struct lu_env *env, struct lu_device *d,
-			  const char *name, struct lu_device *next)
-{
-	LBUG();
-	return 0;
-}
-
-static struct lu_device *echo_device_fini(const struct lu_env *env,
-					  struct lu_device *d)
-{
-	struct echo_device *ed = cl2echo_dev(lu2cl_dev(d));
-	struct lu_device *next = ed->ed_next;
-
-	while (next)
-		next = next->ld_type->ldt_ops->ldto_device_fini(env, next);
-	return NULL;
-}
-
-static void echo_lock_release(const struct lu_env *env,
-			      struct echo_lock *ecl,
-			      int still_used)
-{
-	struct cl_lock *clk = echo_lock2cl(ecl);
-
-	cl_lock_get(clk);
-	cl_unuse(env, clk);
-	cl_lock_release(env, clk, "ec enqueue", ecl->el_object);
-	if (!still_used) {
-		cl_lock_mutex_get(env, clk);
-		cl_lock_cancel(env, clk);
-		cl_lock_delete(env, clk);
-		cl_lock_mutex_put(env, clk);
-	}
-	cl_lock_put(env, clk);
-}
-
-static struct lu_device *echo_device_free(const struct lu_env *env,
-					  struct lu_device *d)
-{
-	struct echo_device     *ed   = cl2echo_dev(lu2cl_dev(d));
-	struct echo_client_obd *ec   = ed->ed_ec;
-	struct echo_object     *eco;
-	struct lu_device       *next = ed->ed_next;
-
-	CDEBUG(D_INFO, "echo device:%p is going to be freed, next = %p\n",
-	       ed, next);
-
-	lu_site_purge(env, &ed->ed_site->cs_lu, -1);
-
-	/* check if there are objects still alive.
-	 * It shouldn't have any object because lu_site_purge would cleanup
-	 * all of cached objects. Anyway, probably the echo device is being
-	 * parallelly accessed.
-	 */
-	spin_lock(&ec->ec_lock);
-	list_for_each_entry(eco, &ec->ec_objects, eo_obj_chain)
-		eco->eo_deleted = 1;
-	spin_unlock(&ec->ec_lock);
-
-	/* purge again */
-	lu_site_purge(env, &ed->ed_site->cs_lu, -1);
-
-	CDEBUG(D_INFO,
-	       "Waiting for the reference of echo object to be dropped\n");
-
-	/* Wait for the last reference to be dropped. */
-	spin_lock(&ec->ec_lock);
-	while (!list_empty(&ec->ec_objects)) {
-		spin_unlock(&ec->ec_lock);
-		CERROR("echo_client still has objects at cleanup time, wait for 1 second\n");
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(cfs_time_seconds(1));
-		lu_site_purge(env, &ed->ed_site->cs_lu, -1);
-		spin_lock(&ec->ec_lock);
-	}
-	spin_unlock(&ec->ec_lock);
-
-	LASSERT(list_empty(&ec->ec_locks));
-
-	CDEBUG(D_INFO, "No object exists, exiting...\n");
-
-	echo_client_cleanup(d->ld_obd);
-
-	while (next)
-		next = next->ld_type->ldt_ops->ldto_device_free(env, next);
-
-	LASSERT(ed->ed_site == lu2cl_site(d->ld_site));
-	echo_site_fini(env, ed);
-	cl_device_fini(&ed->ed_cl);
-	kfree(ed);
-
-	return NULL;
-}
-
-static const struct lu_device_type_operations echo_device_type_ops = {
-	.ldto_init = echo_type_init,
-	.ldto_fini = echo_type_fini,
-
-	.ldto_start = echo_type_start,
-	.ldto_stop  = echo_type_stop,
-
-	.ldto_device_alloc = echo_device_alloc,
-	.ldto_device_free  = echo_device_free,
-	.ldto_device_init  = echo_device_init,
-	.ldto_device_fini  = echo_device_fini
-};
-
-static struct lu_device_type echo_device_type = {
-	.ldt_tags     = LU_DEVICE_CL,
-	.ldt_name     = LUSTRE_ECHO_CLIENT_NAME,
-	.ldt_ops      = &echo_device_type_ops,
-	.ldt_ctx_tags = LCT_CL_THREAD,
-};
-/** @} echo_init */
-
-/** \defgroup echo_exports Exported operations
- *
- * exporting functions to echo client
- *
- * @{
- */
-
-/* Interfaces to echo client obd device */
-static struct echo_object *cl_echo_object_find(struct echo_device *d,
-					       struct lov_stripe_md **lsmp)
-{
-	struct lu_env *env;
-	struct echo_thread_info *info;
-	struct echo_object_conf *conf;
-	struct lov_stripe_md    *lsm;
-	struct echo_object *eco;
-	struct cl_object   *obj;
-	struct lu_fid *fid;
-	int refcheck;
-	int rc;
-
-	LASSERT(lsmp);
-	lsm = *lsmp;
-	LASSERT(lsm);
-	LASSERTF(ostid_id(&lsm->lsm_oi) != 0, DOSTID"\n", POSTID(&lsm->lsm_oi));
-	LASSERTF(ostid_seq(&lsm->lsm_oi) == FID_SEQ_ECHO, DOSTID"\n",
-		 POSTID(&lsm->lsm_oi));
-
-	/* Never return an object if the obd is to be freed. */
-	if (echo_dev2cl(d)->cd_lu_dev.ld_obd->obd_stopping)
-		return ERR_PTR(-ENODEV);
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return (void *)env;
-
-	info = echo_env_info(env);
-	conf = &info->eti_conf;
-	if (d->ed_next) {
-		if (!d->ed_next_islov) {
-			struct lov_oinfo *oinfo = lsm->lsm_oinfo[0];
-
-			LASSERT(oinfo != NULL);
-			oinfo->loi_oi = lsm->lsm_oi;
-			conf->eoc_cl.u.coc_oinfo = oinfo;
-		} else {
-			struct lustre_md *md;
-
-			md = &info->eti_md;
-			memset(md, 0, sizeof(*md));
-			md->lsm = lsm;
-			conf->eoc_cl.u.coc_md = md;
-		}
-	}
-	conf->eoc_md = lsmp;
-
-	fid  = &info->eti_fid;
-	rc = ostid_to_fid(fid, &lsm->lsm_oi, 0);
-	if (rc != 0) {
-		eco = ERR_PTR(rc);
-		goto out;
-	}
-
-	/* In the function below, .hs_keycmp resolves to
-	 * lu_obj_hop_keycmp() */
-	/* coverity[overrun-buffer-val] */
-	obj = cl_object_find(env, echo_dev2cl(d), fid, &conf->eoc_cl);
-	if (IS_ERR(obj)) {
-		eco = (void *)obj;
-		goto out;
-	}
-
-	eco = cl2echo_obj(obj);
-	if (eco->eo_deleted) {
-		cl_object_put(env, obj);
-		eco = ERR_PTR(-EAGAIN);
-	}
-
-out:
-	cl_env_put(env, &refcheck);
-	return eco;
-}
-
-static int cl_echo_object_put(struct echo_object *eco)
-{
-	struct lu_env *env;
-	struct cl_object *obj = echo_obj2cl(eco);
-	int refcheck;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	/* an external function to kill an object? */
-	if (eco->eo_deleted) {
-		struct lu_object_header *loh = obj->co_lu.lo_header;
-
-		LASSERT(&eco->eo_hdr == luh2coh(loh));
-		set_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
-	}
-
-	cl_object_put(env, obj);
-	cl_env_put(env, &refcheck);
-	return 0;
-}
-
-static int cl_echo_enqueue0(struct lu_env *env, struct echo_object *eco,
-			    u64 start, u64 end, int mode,
-			    __u64 *cookie, __u32 enqflags)
-{
-	struct cl_io *io;
-	struct cl_lock *lck;
-	struct cl_object *obj;
-	struct cl_lock_descr *descr;
-	struct echo_thread_info *info;
-	int rc = -ENOMEM;
-
-	info = echo_env_info(env);
-	io = &info->eti_io;
-	descr = &info->eti_descr;
-	obj = echo_obj2cl(eco);
-
-	descr->cld_obj   = obj;
-	descr->cld_start = cl_index(obj, start);
-	descr->cld_end   = cl_index(obj, end);
-	descr->cld_mode  = mode == LCK_PW ? CLM_WRITE : CLM_READ;
-	descr->cld_enq_flags = enqflags;
-	io->ci_obj = obj;
-
-	lck = cl_lock_request(env, io, descr, "ec enqueue", eco);
-	if (lck) {
-		struct echo_client_obd *ec = eco->eo_dev->ed_ec;
-		struct echo_lock *el;
-
-		rc = cl_wait(env, lck);
-		if (rc == 0) {
-			el = cl2echo_lock(cl_lock_at(lck, &echo_device_type));
-			spin_lock(&ec->ec_lock);
-			if (list_empty(&el->el_chain)) {
-				list_add(&el->el_chain, &ec->ec_locks);
-				el->el_cookie = ++ec->ec_unique;
-			}
-			atomic_inc(&el->el_refcount);
-			*cookie = el->el_cookie;
-			spin_unlock(&ec->ec_lock);
-		} else {
-			cl_lock_release(env, lck, "ec enqueue", current);
-		}
-	}
-	return rc;
-}
-
-static int cl_echo_enqueue(struct echo_object *eco, u64 start, u64 end,
-			   int mode, __u64 *cookie)
-{
-	struct echo_thread_info *info;
-	struct lu_env *env;
-	struct cl_io *io;
-	int refcheck;
-	int result;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	info = echo_env_info(env);
-	io = &info->eti_io;
-
-	io->ci_ignore_layout = 1;
-	result = cl_io_init(env, io, CIT_MISC, echo_obj2cl(eco));
-	if (result < 0)
-		goto out;
-	LASSERT(result == 0);
-
-	result = cl_echo_enqueue0(env, eco, start, end, mode, cookie, 0);
-	cl_io_fini(env, io);
-
-out:
-	cl_env_put(env, &refcheck);
-	return result;
-}
-
-static int cl_echo_cancel0(struct lu_env *env, struct echo_device *ed,
-			   __u64 cookie)
-{
-	struct echo_client_obd *ec = ed->ed_ec;
-	struct echo_lock       *ecl = NULL;
-	struct list_head	     *el;
-	int found = 0, still_used = 0;
-
-	LASSERT(ec != NULL);
-	spin_lock(&ec->ec_lock);
-	list_for_each(el, &ec->ec_locks) {
-		ecl = list_entry(el, struct echo_lock, el_chain);
-		CDEBUG(D_INFO, "ecl: %p, cookie: %#llx\n", ecl, ecl->el_cookie);
-		found = (ecl->el_cookie == cookie);
-		if (found) {
-			if (atomic_dec_and_test(&ecl->el_refcount))
-				list_del_init(&ecl->el_chain);
-			else
-				still_used = 1;
-			break;
-		}
-	}
-	spin_unlock(&ec->ec_lock);
-
-	if (!found)
-		return -ENOENT;
-
-	echo_lock_release(env, ecl, still_used);
-	return 0;
-}
-
-static int cl_echo_cancel(struct echo_device *ed, __u64 cookie)
-{
-	struct lu_env *env;
-	int refcheck;
-	int rc;
-
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	rc = cl_echo_cancel0(env, ed, cookie);
-
-	cl_env_put(env, &refcheck);
-	return rc;
-}
-
-static int cl_echo_async_brw(const struct lu_env *env, struct cl_io *io,
-			     enum cl_req_type unused, struct cl_2queue *queue)
-{
-	struct cl_page *clp;
-	struct cl_page *temp;
-	int result = 0;
-
-	cl_page_list_for_each_safe(clp, temp, &queue->c2_qin) {
-		int rc;
-
-		rc = cl_page_cache_add(env, io, clp, CRT_WRITE);
-		if (rc == 0)
-			continue;
-		result = result ?: rc;
-	}
-	return result;
-}
-
-static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset,
-			      struct page **pages, int npages, int async)
-{
-	struct lu_env	   *env;
-	struct echo_thread_info *info;
-	struct cl_object	*obj = echo_obj2cl(eco);
-	struct echo_device      *ed  = eco->eo_dev;
-	struct cl_2queue	*queue;
-	struct cl_io	    *io;
-	struct cl_page	  *clp;
-	struct lustre_handle    lh = { 0 };
-	int page_size = cl_page_size(obj);
-	int refcheck;
-	int rc;
-	int i;
-
-	LASSERT((offset & ~CFS_PAGE_MASK) == 0);
-	LASSERT(ed->ed_next != NULL);
-	env = cl_env_get(&refcheck);
-	if (IS_ERR(env))
-		return PTR_ERR(env);
-
-	info    = echo_env_info(env);
-	io      = &info->eti_io;
-	queue   = &info->eti_queue;
-
-	cl_2queue_init(queue);
-
-	io->ci_ignore_layout = 1;
-	rc = cl_io_init(env, io, CIT_MISC, obj);
-	if (rc < 0)
-		goto out;
-	LASSERT(rc == 0);
-
-
-	rc = cl_echo_enqueue0(env, eco, offset,
-			      offset + npages * PAGE_CACHE_SIZE - 1,
-			      rw == READ ? LCK_PR : LCK_PW, &lh.cookie,
-			      CEF_NEVER);
-	if (rc < 0)
-		goto error_lock;
-
-	for (i = 0; i < npages; i++) {
-		LASSERT(pages[i]);
-		clp = cl_page_find(env, obj, cl_index(obj, offset),
-				   pages[i], CPT_TRANSIENT);
-		if (IS_ERR(clp)) {
-			rc = PTR_ERR(clp);
-			break;
-		}
-		LASSERT(clp->cp_type == CPT_TRANSIENT);
-
-		rc = cl_page_own(env, io, clp);
-		if (rc) {
-			LASSERT(clp->cp_state == CPS_FREEING);
-			cl_page_put(env, clp);
-			break;
-		}
-
-		cl_2queue_add(queue, clp);
-
-		/* drop the reference count for cl_page_find, so that the page
-		 * will be freed in cl_2queue_fini. */
-		cl_page_put(env, clp);
-		cl_page_clip(env, clp, 0, page_size);
-
-		offset += page_size;
-	}
-
-	if (rc == 0) {
-		enum cl_req_type typ = rw == READ ? CRT_READ : CRT_WRITE;
-
-		async = async && (typ == CRT_WRITE);
-		if (async)
-			rc = cl_echo_async_brw(env, io, typ, queue);
-		else
-			rc = cl_io_submit_sync(env, io, typ, queue, 0);
-		CDEBUG(D_INFO, "echo_client %s write returns %d\n",
-		       async ? "async" : "sync", rc);
-	}
-
-	cl_echo_cancel0(env, ed, lh.cookie);
-error_lock:
-	cl_2queue_discard(env, io, queue);
-	cl_2queue_disown(env, io, queue);
-	cl_2queue_fini(env, queue);
-	cl_io_fini(env, io);
-out:
-	cl_env_put(env, &refcheck);
-	return rc;
-}
-/** @} echo_exports */
-
-
-static u64 last_object_id;
-
-static int
-echo_copyout_lsm(struct lov_stripe_md *lsm, void *_ulsm, int ulsm_nob)
-{
-	struct lov_stripe_md *ulsm = _ulsm;
-	int nob, i;
-
-	nob = offsetof(struct lov_stripe_md, lsm_oinfo[lsm->lsm_stripe_count]);
-	if (nob > ulsm_nob)
-		return -EINVAL;
-
-	if (copy_to_user(ulsm, lsm, sizeof(*ulsm)))
-		return -EFAULT;
-
-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		if (copy_to_user(ulsm->lsm_oinfo[i], lsm->lsm_oinfo[i],
-				      sizeof(lsm->lsm_oinfo[0])))
-			return -EFAULT;
-	}
-	return 0;
-}
-
-static int
-echo_copyin_lsm(struct echo_device *ed, struct lov_stripe_md *lsm,
-		 void *ulsm, int ulsm_nob)
-{
-	struct echo_client_obd *ec = ed->ed_ec;
-	int		     i;
-
-	if (ulsm_nob < sizeof(*lsm))
-		return -EINVAL;
-
-	if (copy_from_user(lsm, ulsm, sizeof(*lsm)))
-		return -EFAULT;
-
-	if (lsm->lsm_stripe_count > ec->ec_nstripes ||
-	    lsm->lsm_magic != LOV_MAGIC ||
-	    (lsm->lsm_stripe_size & (~CFS_PAGE_MASK)) != 0 ||
-	    ((__u64)lsm->lsm_stripe_size * lsm->lsm_stripe_count > ~0UL))
-		return -EINVAL;
-
-
-	for (i = 0; i < lsm->lsm_stripe_count; i++) {
-		if (copy_from_user(lsm->lsm_oinfo[i],
-				       ((struct lov_stripe_md *)ulsm)-> \
-				       lsm_oinfo[i],
-				       sizeof(lsm->lsm_oinfo[0])))
-			return -EFAULT;
-	}
-	return 0;
-}
-
-static int echo_create_object(const struct lu_env *env, struct echo_device *ed,
-			      int on_target, struct obdo *oa, void *ulsm,
-			      int ulsm_nob, struct obd_trans_info *oti)
-{
-	struct echo_object     *eco;
-	struct echo_client_obd *ec = ed->ed_ec;
-	struct lov_stripe_md   *lsm = NULL;
-	int		     rc;
-	int		     created = 0;
-
-	if ((oa->o_valid & OBD_MD_FLID) == 0 && /* no obj id */
-	    (on_target ||		       /* set_stripe */
-	     ec->ec_nstripes != 0)) {	   /* LOV */
-		CERROR("No valid oid\n");
-		return -EINVAL;
-	}
-
-	rc = echo_alloc_memmd(ed, &lsm);
-	if (rc < 0) {
-		CERROR("Cannot allocate md: rc = %d\n", rc);
-		goto failed;
-	}
-
-	if (ulsm != NULL) {
-		int i, idx;
-
-		rc = echo_copyin_lsm(ed, lsm, ulsm, ulsm_nob);
-		if (rc != 0)
-			goto failed;
-
-		if (lsm->lsm_stripe_count == 0)
-			lsm->lsm_stripe_count = ec->ec_nstripes;
-
-		if (lsm->lsm_stripe_size == 0)
-			lsm->lsm_stripe_size = PAGE_CACHE_SIZE;
-
-		idx = cfs_rand();
-
-		/* setup stripes: indices + default ids if required */
-		for (i = 0; i < lsm->lsm_stripe_count; i++) {
-			if (ostid_id(&lsm->lsm_oinfo[i]->loi_oi) == 0)
-				lsm->lsm_oinfo[i]->loi_oi = lsm->lsm_oi;
-
-			lsm->lsm_oinfo[i]->loi_ost_idx =
-				(idx + i) % ec->ec_nstripes;
-		}
-	}
-
-	/* setup object ID here for !on_target and LOV hint */
-	if (oa->o_valid & OBD_MD_FLID) {
-		LASSERT(oa->o_valid & OBD_MD_FLGROUP);
-		lsm->lsm_oi = oa->o_oi;
-	}
-
-	if (ostid_id(&lsm->lsm_oi) == 0)
-		ostid_set_id(&lsm->lsm_oi, ++last_object_id);
-
-	rc = 0;
-	if (on_target) {
-		/* Only echo objects are allowed to be created */
-		LASSERT((oa->o_valid & OBD_MD_FLGROUP) &&
-			(ostid_seq(&oa->o_oi) == FID_SEQ_ECHO));
-		rc = obd_create(env, ec->ec_exp, oa, &lsm, oti);
-		if (rc != 0) {
-			CERROR("Cannot create objects: rc = %d\n", rc);
-			goto failed;
-		}
-		created = 1;
-	}
-
-	/* See what object ID we were given */
-	oa->o_oi = lsm->lsm_oi;
-	oa->o_valid |= OBD_MD_FLID;
-
-	eco = cl_echo_object_find(ed, &lsm);
-	if (IS_ERR(eco)) {
-		rc = PTR_ERR(eco);
-		goto failed;
-	}
-	cl_echo_object_put(eco);
-
-	CDEBUG(D_INFO, "oa oid "DOSTID"\n", POSTID(&oa->o_oi));
-
- failed:
-	if (created && rc)
-		obd_destroy(env, ec->ec_exp, oa, lsm, oti, NULL, NULL);
-	if (lsm)
-		echo_free_memmd(ed, &lsm);
-	if (rc)
-		CERROR("create object failed with: rc = %d\n", rc);
-	return rc;
-}
-
-static int echo_get_object(struct echo_object **ecop, struct echo_device *ed,
-			   struct obdo *oa)
-{
-	struct lov_stripe_md   *lsm = NULL;
-	struct echo_object     *eco;
-	int		     rc;
-
-	if ((oa->o_valid & OBD_MD_FLID) == 0 || ostid_id(&oa->o_oi) == 0) {
-		/* disallow use of object id 0 */
-		CERROR("No valid oid\n");
-		return -EINVAL;
-	}
-
-	rc = echo_alloc_memmd(ed, &lsm);
-	if (rc < 0)
-		return rc;
-
-	lsm->lsm_oi = oa->o_oi;
-	if (!(oa->o_valid & OBD_MD_FLGROUP))
-		ostid_set_seq_echo(&lsm->lsm_oi);
-
-	rc = 0;
-	eco = cl_echo_object_find(ed, &lsm);
-	if (!IS_ERR(eco))
-		*ecop = eco;
-	else
-		rc = PTR_ERR(eco);
-	if (lsm)
-		echo_free_memmd(ed, &lsm);
-	return rc;
-}
-
-static void echo_put_object(struct echo_object *eco)
-{
-	if (cl_echo_object_put(eco))
-		CERROR("echo client: drop an object failed");
-}
-
-static void
-echo_get_stripe_off_id(struct lov_stripe_md *lsm, u64 *offp, u64 *idp)
-{
-	unsigned long stripe_count;
-	unsigned long stripe_size;
-	unsigned long width;
-	unsigned long woffset;
-	int	   stripe_index;
-	u64       offset;
-
-	if (lsm->lsm_stripe_count <= 1)
-		return;
-
-	offset       = *offp;
-	stripe_size  = lsm->lsm_stripe_size;
-	stripe_count = lsm->lsm_stripe_count;
-
-	/* width = # bytes in all stripes */
-	width = stripe_size * stripe_count;
-
-	/* woffset = offset within a width; offset = whole number of widths */
-	woffset = do_div(offset, width);
-
-	stripe_index = woffset / stripe_size;
-
-	*idp = ostid_id(&lsm->lsm_oinfo[stripe_index]->loi_oi);
-	*offp = offset * stripe_size + woffset % stripe_size;
-}
-
-static void
-echo_client_page_debug_setup(struct lov_stripe_md *lsm,
-			     struct page *page, int rw, u64 id,
-			     u64 offset, u64 count)
-{
-	char    *addr;
-	u64	 stripe_off;
-	u64	 stripe_id;
-	int      delta;
-
-	/* no partial pages on the client */
-	LASSERT(count == PAGE_CACHE_SIZE);
-
-	addr = kmap(page);
-
-	for (delta = 0; delta < PAGE_CACHE_SIZE; delta += OBD_ECHO_BLOCK_SIZE) {
-		if (rw == OBD_BRW_WRITE) {
-			stripe_off = offset + delta;
-			stripe_id = id;
-			echo_get_stripe_off_id(lsm, &stripe_off, &stripe_id);
-		} else {
-			stripe_off = 0xdeadbeef00c0ffeeULL;
-			stripe_id = 0xdeadbeef00c0ffeeULL;
-		}
-		block_debug_setup(addr + delta, OBD_ECHO_BLOCK_SIZE,
-				  stripe_off, stripe_id);
-	}
-
-	kunmap(page);
-}
-
-static int echo_client_page_debug_check(struct lov_stripe_md *lsm,
-					struct page *page, u64 id,
-					u64 offset, u64 count)
-{
-	u64	stripe_off;
-	u64	stripe_id;
-	char   *addr;
-	int     delta;
-	int     rc;
-	int     rc2;
-
-	/* no partial pages on the client */
-	LASSERT(count == PAGE_CACHE_SIZE);
-
-	addr = kmap(page);
-
-	for (rc = delta = 0; delta < PAGE_CACHE_SIZE; delta += OBD_ECHO_BLOCK_SIZE) {
-		stripe_off = offset + delta;
-		stripe_id = id;
-		echo_get_stripe_off_id(lsm, &stripe_off, &stripe_id);
-
-		rc2 = block_debug_check("test_brw",
-					addr + delta, OBD_ECHO_BLOCK_SIZE,
-					stripe_off, stripe_id);
-		if (rc2 != 0) {
-			CERROR("Error in echo object %#llx\n", id);
-			rc = rc2;
-		}
-	}
-
-	kunmap(page);
-	return rc;
-}
-
-static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
-			    struct echo_object *eco, u64 offset,
-			    u64 count, int async,
-			    struct obd_trans_info *oti)
-{
-	struct lov_stripe_md   *lsm = eco->eo_lsm;
-	u32	       npages;
-	struct brw_page	*pga;
-	struct brw_page	*pgp;
-	struct page	    **pages;
-	u64		 off;
-	int		     i;
-	int		     rc;
-	int		     verify;
-	gfp_t		     gfp_mask;
-	int		     brw_flags = 0;
-
-	verify = (ostid_id(&oa->o_oi) != ECHO_PERSISTENT_OBJID &&
-		  (oa->o_valid & OBD_MD_FLFLAGS) != 0 &&
-		  (oa->o_flags & OBD_FL_DEBUG_CHECK) != 0);
-
-	gfp_mask = ((ostid_id(&oa->o_oi) & 2) == 0) ? GFP_IOFS : GFP_HIGHUSER;
-
-	LASSERT(rw == OBD_BRW_WRITE || rw == OBD_BRW_READ);
-	LASSERT(lsm != NULL);
-	LASSERT(ostid_id(&lsm->lsm_oi) == ostid_id(&oa->o_oi));
-
-	if (count <= 0 ||
-	    (count & (~CFS_PAGE_MASK)) != 0)
-		return -EINVAL;
-
-	/* XXX think again with misaligned I/O */
-	npages = count >> PAGE_CACHE_SHIFT;
-
-	if (rw == OBD_BRW_WRITE)
-		brw_flags = OBD_BRW_ASYNC;
-
-	pga = kcalloc(npages, sizeof(*pga), GFP_NOFS);
-	if (pga == NULL)
-		return -ENOMEM;
-
-	pages = kcalloc(npages, sizeof(*pages), GFP_NOFS);
-	if (pages == NULL) {
-		kfree(pga);
-		return -ENOMEM;
-	}
-
-	for (i = 0, pgp = pga, off = offset;
-	     i < npages;
-	     i++, pgp++, off += PAGE_CACHE_SIZE) {
-
-		LASSERT(pgp->pg == NULL);      /* for cleanup */
-
-		rc = -ENOMEM;
-		OBD_PAGE_ALLOC(pgp->pg, gfp_mask);
-		if (pgp->pg == NULL)
-			goto out;
-
-		pages[i] = pgp->pg;
-		pgp->count = PAGE_CACHE_SIZE;
-		pgp->off = off;
-		pgp->flag = brw_flags;
-
-		if (verify)
-			echo_client_page_debug_setup(lsm, pgp->pg, rw,
-						     ostid_id(&oa->o_oi), off,
-						     pgp->count);
-	}
-
-	/* brw mode can only be used at client */
-	LASSERT(ed->ed_next != NULL);
-	rc = cl_echo_object_brw(eco, rw, offset, pages, npages, async);
-
- out:
-	if (rc != 0 || rw != OBD_BRW_READ)
-		verify = 0;
-
-	for (i = 0, pgp = pga; i < npages; i++, pgp++) {
-		if (pgp->pg == NULL)
-			continue;
-
-		if (verify) {
-			int vrc;
-
-			vrc = echo_client_page_debug_check(lsm, pgp->pg,
-							   ostid_id(&oa->o_oi),
-							   pgp->off, pgp->count);
-			if (vrc != 0 && rc == 0)
-				rc = vrc;
-		}
-		OBD_PAGE_FREE(pgp->pg);
-	}
-	kfree(pga);
-	kfree(pages);
-	return rc;
-}
-
-static int echo_client_prep_commit(const struct lu_env *env,
-				   struct obd_export *exp, int rw,
-				   struct obdo *oa, struct echo_object *eco,
-				   u64 offset, u64 count,
-				   u64 batch, struct obd_trans_info *oti,
-				   int async)
-{
-	struct lov_stripe_md *lsm = eco->eo_lsm;
-	struct obd_ioobj ioo;
-	struct niobuf_local *lnb;
-	struct niobuf_remote *rnb;
-	u64 off;
-	u64 npages, tot_pages;
-	int i, ret = 0, brw_flags = 0;
-
-	if (count <= 0 || (count & (~CFS_PAGE_MASK)) != 0 ||
-	    (lsm != NULL && ostid_id(&lsm->lsm_oi) != ostid_id(&oa->o_oi)))
-		return -EINVAL;
-
-	npages = batch >> PAGE_CACHE_SHIFT;
-	tot_pages = count >> PAGE_CACHE_SHIFT;
-
-	lnb = kcalloc(npages, sizeof(struct niobuf_local), GFP_NOFS);
-	rnb = kcalloc(npages, sizeof(struct niobuf_remote), GFP_NOFS);
-
-	if (lnb == NULL || rnb == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	if (rw == OBD_BRW_WRITE && async)
-		brw_flags |= OBD_BRW_ASYNC;
-
-	obdo_to_ioobj(oa, &ioo);
-
-	off = offset;
-
-	for (; tot_pages; tot_pages -= npages) {
-		int lpages;
-
-		if (tot_pages < npages)
-			npages = tot_pages;
-
-		for (i = 0; i < npages; i++, off += PAGE_CACHE_SIZE) {
-			rnb[i].offset = off;
-			rnb[i].len = PAGE_CACHE_SIZE;
-			rnb[i].flags = brw_flags;
-		}
-
-		ioo.ioo_bufcnt = npages;
-		oti->oti_transno = 0;
-
-		lpages = npages;
-		ret = obd_preprw(env, rw, exp, oa, 1, &ioo, rnb, &lpages,
-				 lnb, oti, NULL);
-		if (ret != 0)
-			goto out;
-		LASSERT(lpages == npages);
-
-		for (i = 0; i < lpages; i++) {
-			struct page *page = lnb[i].page;
-
-			/* read past eof? */
-			if (page == NULL && lnb[i].rc == 0)
-				continue;
-
-			if (async)
-				lnb[i].flags |= OBD_BRW_ASYNC;
-
-			if (ostid_id(&oa->o_oi) == ECHO_PERSISTENT_OBJID ||
-			    (oa->o_valid & OBD_MD_FLFLAGS) == 0 ||
-			    (oa->o_flags & OBD_FL_DEBUG_CHECK) == 0)
-				continue;
-
-			if (rw == OBD_BRW_WRITE)
-				echo_client_page_debug_setup(lsm, page, rw,
-							    ostid_id(&oa->o_oi),
-							     rnb[i].offset,
-							     rnb[i].len);
-			else
-				echo_client_page_debug_check(lsm, page,
-							    ostid_id(&oa->o_oi),
-							     rnb[i].offset,
-							     rnb[i].len);
-		}
-
-		ret = obd_commitrw(env, rw, exp, oa, 1, &ioo,
-				   rnb, npages, lnb, oti, ret);
-		if (ret != 0)
-			goto out;
-
-		/* Reset oti otherwise it would confuse ldiskfs. */
-		memset(oti, 0, sizeof(*oti));
-
-		/* Reuse env context. */
-		lu_context_exit((struct lu_context *)&env->le_ctx);
-		lu_context_enter((struct lu_context *)&env->le_ctx);
-	}
-
-out:
-	kfree(lnb);
-	kfree(rnb);
-	return ret;
-}
-
-static int echo_client_brw_ioctl(const struct lu_env *env, int rw,
-				 struct obd_export *exp,
-				 struct obd_ioctl_data *data,
-				 struct obd_trans_info *dummy_oti)
-{
-	struct obd_device *obd = class_exp2obd(exp);
-	struct echo_device *ed = obd2echo_dev(obd);
-	struct echo_client_obd *ec = ed->ed_ec;
-	struct obdo *oa = &data->ioc_obdo1;
-	struct echo_object *eco;
-	int rc;
-	int async = 1;
-	long test_mode;
-
-	LASSERT(oa->o_valid & OBD_MD_FLGROUP);
-
-	rc = echo_get_object(&eco, ed, oa);
-	if (rc)
-		return rc;
-
-	oa->o_valid &= ~OBD_MD_FLHANDLE;
-
-	/* OFD/obdfilter works only via prep/commit */
-	test_mode = (long)data->ioc_pbuf1;
-	if (test_mode == 1)
-		async = 0;
-
-	if (ed->ed_next == NULL && test_mode != 3) {
-		test_mode = 3;
-		data->ioc_plen1 = data->ioc_count;
-	}
-
-	/* Truncate batch size to maximum */
-	if (data->ioc_plen1 > PTLRPC_MAX_BRW_SIZE)
-		data->ioc_plen1 = PTLRPC_MAX_BRW_SIZE;
-
-	switch (test_mode) {
-	case 1:
-		/* fall through */
-	case 2:
-		rc = echo_client_kbrw(ed, rw, oa,
-				      eco, data->ioc_offset,
-				      data->ioc_count, async, dummy_oti);
-		break;
-	case 3:
-		rc = echo_client_prep_commit(env, ec->ec_exp, rw, oa,
-					     eco, data->ioc_offset,
-					     data->ioc_count, data->ioc_plen1,
-					     dummy_oti, async);
-		break;
-	default:
-		rc = -EINVAL;
-	}
-	echo_put_object(eco);
-	return rc;
-}
-
-static int
-echo_client_enqueue(struct obd_export *exp, struct obdo *oa,
-		    int mode, u64 offset, u64 nob)
-{
-	struct echo_device     *ed = obd2echo_dev(exp->exp_obd);
-	struct lustre_handle   *ulh = &oa->o_handle;
-	struct echo_object     *eco;
-	u64		 end;
-	int		     rc;
-
-	if (ed->ed_next == NULL)
-		return -EOPNOTSUPP;
-
-	if (!(mode == LCK_PR || mode == LCK_PW))
-		return -EINVAL;
-
-	if ((offset & (~CFS_PAGE_MASK)) != 0 ||
-	    (nob & (~CFS_PAGE_MASK)) != 0)
-		return -EINVAL;
-
-	rc = echo_get_object(&eco, ed, oa);
-	if (rc != 0)
-		return rc;
-
-	end = (nob == 0) ? ((u64) -1) : (offset + nob - 1);
-	rc = cl_echo_enqueue(eco, offset, end, mode, &ulh->cookie);
-	if (rc == 0) {
-		oa->o_valid |= OBD_MD_FLHANDLE;
-		CDEBUG(D_INFO, "Cookie is %#llx\n", ulh->cookie);
-	}
-	echo_put_object(eco);
-	return rc;
-}
-
-static int
-echo_client_cancel(struct obd_export *exp, struct obdo *oa)
-{
-	struct echo_device *ed     = obd2echo_dev(exp->exp_obd);
-	__u64	       cookie = oa->o_handle.cookie;
-
-	if ((oa->o_valid & OBD_MD_FLHANDLE) == 0)
-		return -EINVAL;
-
-	CDEBUG(D_INFO, "Cookie is %#llx\n", cookie);
-	return cl_echo_cancel(ed, cookie);
-}
-
-static int
-echo_client_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
-		      void *karg, void *uarg)
-{
-	struct obd_device      *obd = exp->exp_obd;
-	struct echo_device     *ed = obd2echo_dev(obd);
-	struct echo_client_obd *ec = ed->ed_ec;
-	struct echo_object     *eco;
-	struct obd_ioctl_data  *data = karg;
-	struct obd_trans_info   dummy_oti;
-	struct lu_env	  *env;
-	struct oti_req_ack_lock *ack_lock;
-	struct obdo	    *oa;
-	struct lu_fid	   fid;
-	int		     rw = OBD_BRW_READ;
-	int		     rc = 0;
-	int		     i;
-
-	memset(&dummy_oti, 0, sizeof(dummy_oti));
-
-	oa = &data->ioc_obdo1;
-	if (!(oa->o_valid & OBD_MD_FLGROUP)) {
-		oa->o_valid |= OBD_MD_FLGROUP;
-		ostid_set_seq_echo(&oa->o_oi);
-	}
-
-	/* This FID is unpacked just for validation at this point */
-	rc = ostid_to_fid(&fid, &oa->o_oi, 0);
-	if (rc < 0)
-		return rc;
-
-	env = kzalloc(sizeof(*env), GFP_NOFS);
-	if (!env)
-		return -ENOMEM;
-
-	rc = lu_env_init(env, LCT_DT_THREAD);
-	if (rc) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	switch (cmd) {
-	case OBD_IOC_CREATE:		    /* may create echo object */
-		if (!capable(CFS_CAP_SYS_ADMIN)) {
-			rc = -EPERM;
-			goto out;
-		}
-
-		rc = echo_create_object(env, ed, 1, oa, data->ioc_pbuf1,
-					data->ioc_plen1, &dummy_oti);
-		goto out;
-
-	case OBD_IOC_DESTROY:
-		if (!capable(CFS_CAP_SYS_ADMIN)) {
-			rc = -EPERM;
-			goto out;
-		}
-
-		rc = echo_get_object(&eco, ed, oa);
-		if (rc == 0) {
-			rc = obd_destroy(env, ec->ec_exp, oa, eco->eo_lsm,
-					 &dummy_oti, NULL, NULL);
-			if (rc == 0)
-				eco->eo_deleted = 1;
-			echo_put_object(eco);
-		}
-		goto out;
-
-	case OBD_IOC_GETATTR:
-		rc = echo_get_object(&eco, ed, oa);
-		if (rc == 0) {
-			struct obd_info oinfo = { { { 0 } } };
-
-			oinfo.oi_md = eco->eo_lsm;
-			oinfo.oi_oa = oa;
-			rc = obd_getattr(env, ec->ec_exp, &oinfo);
-			echo_put_object(eco);
-		}
-		goto out;
-
-	case OBD_IOC_SETATTR:
-		if (!capable(CFS_CAP_SYS_ADMIN)) {
-			rc = -EPERM;
-			goto out;
-		}
-
-		rc = echo_get_object(&eco, ed, oa);
-		if (rc == 0) {
-			struct obd_info oinfo = { { { 0 } } };
-
-			oinfo.oi_oa = oa;
-			oinfo.oi_md = eco->eo_lsm;
-
-			rc = obd_setattr(env, ec->ec_exp, &oinfo, NULL);
-			echo_put_object(eco);
-		}
-		goto out;
-
-	case OBD_IOC_BRW_WRITE:
-		if (!capable(CFS_CAP_SYS_ADMIN)) {
-			rc = -EPERM;
-			goto out;
-		}
-
-		rw = OBD_BRW_WRITE;
-		/* fall through */
-	case OBD_IOC_BRW_READ:
-		rc = echo_client_brw_ioctl(env, rw, exp, data, &dummy_oti);
-		goto out;
-
-	case ECHO_IOC_GET_STRIPE:
-		rc = echo_get_object(&eco, ed, oa);
-		if (rc == 0) {
-			rc = echo_copyout_lsm(eco->eo_lsm, data->ioc_pbuf1,
-					      data->ioc_plen1);
-			echo_put_object(eco);
-		}
-		goto out;
-
-	case ECHO_IOC_SET_STRIPE:
-		if (!capable(CFS_CAP_SYS_ADMIN)) {
-			rc = -EPERM;
-			goto out;
-		}
-
-		if (data->ioc_pbuf1 == NULL) {  /* unset */
-			rc = echo_get_object(&eco, ed, oa);
-			if (rc == 0) {
-				eco->eo_deleted = 1;
-				echo_put_object(eco);
-			}
-		} else {
-			rc = echo_create_object(env, ed, 0, oa,
-						data->ioc_pbuf1,
-						data->ioc_plen1, &dummy_oti);
-		}
-		goto out;
-
-	case ECHO_IOC_ENQUEUE:
-		if (!capable(CFS_CAP_SYS_ADMIN)) {
-			rc = -EPERM;
-			goto out;
-		}
-
-		rc = echo_client_enqueue(exp, oa,
-					 data->ioc_conn1, /* lock mode */
-					 data->ioc_offset,
-					 data->ioc_count);/*extent*/
-		goto out;
-
-	case ECHO_IOC_CANCEL:
-		rc = echo_client_cancel(exp, oa);
-		goto out;
-
-	default:
-		CERROR("echo_ioctl(): unrecognised ioctl %#x\n", cmd);
-		rc = -ENOTTY;
-		goto out;
-	}
-
-out:
-	lu_env_fini(env);
-	kfree(env);
-
-	/* XXX this should be in a helper also called by target_send_reply */
-	for (ack_lock = dummy_oti.oti_ack_locks, i = 0; i < 4;
-	     i++, ack_lock++) {
-		if (!ack_lock->mode)
-			break;
-		ldlm_lock_decref(&ack_lock->lock, ack_lock->mode);
-	}
-
-	return rc;
-}
-
-static int echo_client_setup(const struct lu_env *env,
-			     struct obd_device *obddev, struct lustre_cfg *lcfg)
-{
-	struct echo_client_obd *ec = &obddev->u.echo_client;
-	struct obd_device *tgt;
-	struct obd_uuid echo_uuid = { "ECHO_UUID" };
-	struct obd_connect_data *ocd = NULL;
-	int rc;
-
-	if (lcfg->lcfg_bufcount < 2 || LUSTRE_CFG_BUFLEN(lcfg, 1) < 1) {
-		CERROR("requires a TARGET OBD name\n");
-		return -EINVAL;
-	}
-
-	tgt = class_name2obd(lustre_cfg_string(lcfg, 1));
-	if (!tgt || !tgt->obd_attached || !tgt->obd_set_up) {
-		CERROR("device not attached or not set up (%s)\n",
-		       lustre_cfg_string(lcfg, 1));
-		return -EINVAL;
-	}
-
-	spin_lock_init(&ec->ec_lock);
-	INIT_LIST_HEAD(&ec->ec_objects);
-	INIT_LIST_HEAD(&ec->ec_locks);
-	ec->ec_unique = 0;
-	ec->ec_nstripes = 0;
-
-	ocd = kzalloc(sizeof(*ocd), GFP_NOFS);
-	if (!ocd) {
-		CERROR("Can't alloc ocd connecting to %s\n",
-		       lustre_cfg_string(lcfg, 1));
-		return -ENOMEM;
-	}
-
-	ocd->ocd_connect_flags = OBD_CONNECT_VERSION | OBD_CONNECT_REQPORTAL |
-				 OBD_CONNECT_BRW_SIZE |
-				 OBD_CONNECT_GRANT | OBD_CONNECT_FULL20 |
-				 OBD_CONNECT_64BITHASH | OBD_CONNECT_LVB_TYPE |
-				 OBD_CONNECT_FID;
-	ocd->ocd_brw_size = DT_MAX_BRW_SIZE;
-	ocd->ocd_version = LUSTRE_VERSION_CODE;
-	ocd->ocd_group = FID_SEQ_ECHO;
-
-	rc = obd_connect(env, &ec->ec_exp, tgt, &echo_uuid, ocd, NULL);
-	if (rc == 0) {
-		/* Turn off pinger because it connects to tgt obd directly. */
-		spin_lock(&tgt->obd_dev_lock);
-		list_del_init(&ec->ec_exp->exp_obd_chain_timed);
-		spin_unlock(&tgt->obd_dev_lock);
-	}
-
-	kfree(ocd);
-
-	if (rc != 0) {
-		CERROR("fail to connect to device %s\n",
-		       lustre_cfg_string(lcfg, 1));
-		return rc;
-	}
-
-	return rc;
-}
-
-static int echo_client_cleanup(struct obd_device *obddev)
-{
-	struct echo_client_obd *ec = &obddev->u.echo_client;
-	int rc;
-
-	if (!list_empty(&obddev->obd_exports)) {
-		CERROR("still has clients!\n");
-		return -EBUSY;
-	}
-
-	LASSERT(atomic_read(&ec->ec_exp->exp_refcount) > 0);
-	rc = obd_disconnect(ec->ec_exp);
-	if (rc != 0)
-		CERROR("fail to disconnect device: %d\n", rc);
-
-	return rc;
-}
-
-static int echo_client_connect(const struct lu_env *env,
-			       struct obd_export **exp,
-			       struct obd_device *src, struct obd_uuid *cluuid,
-			       struct obd_connect_data *data, void *localdata)
-{
-	int		rc;
-	struct lustre_handle conn = { 0 };
-
-	rc = class_connect(&conn, src, cluuid);
-	if (rc == 0) {
-		*exp = class_conn2export(&conn);
-	}
-
-	return rc;
-}
-
-static int echo_client_disconnect(struct obd_export *exp)
-{
-	int		     rc;
-
-	if (exp == NULL) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	rc = class_disconnect(exp);
-	goto out;
- out:
-	return rc;
-}
-
-static struct obd_ops echo_client_obd_ops = {
-	.o_owner       = THIS_MODULE,
-	.o_iocontrol   = echo_client_iocontrol,
-	.o_connect     = echo_client_connect,
-	.o_disconnect  = echo_client_disconnect
-};
-
-static int echo_client_init(void)
-{
-	int rc;
-
-	rc = lu_kmem_init(echo_caches);
-	if (rc == 0) {
-		rc = class_register_type(&echo_client_obd_ops, NULL,
-					 LUSTRE_ECHO_CLIENT_NAME,
-					 &echo_device_type);
-		if (rc)
-			lu_kmem_fini(echo_caches);
-	}
-	return rc;
-}
-
-static void echo_client_exit(void)
-{
-	class_unregister_type(LUSTRE_ECHO_CLIENT_NAME);
-	lu_kmem_fini(echo_caches);
-}
-
-static int __init obdecho_init(void)
-{
-	LCONSOLE_INFO("Echo OBD driver; http://www.lustre.org/\n");
-
-	LASSERT(PAGE_CACHE_SIZE % OBD_ECHO_BLOCK_SIZE == 0);
-
-	return echo_client_init();
-}
-
-static void /*__exit*/ obdecho_exit(void)
-{
-	echo_client_exit();
-
-}
-
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre Testing Echo OBD driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(LUSTRE_VERSION_STRING);
-
-module_init(obdecho_init);
-module_exit(obdecho_exit);
-
-/** @} echo_client */
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_internal.h b/drivers/staging/lustre/lustre/obdecho/echo_internal.h
deleted file mode 100644
index 8e9dbc2351e7..000000000000
--- a/drivers/staging/lustre/lustre/obdecho/echo_internal.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Whamcloud, Inc.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdecho/echo_internal.h
- */
-
-#ifndef _ECHO_INTERNAL_H
-#define _ECHO_INTERNAL_H
-
-/* The persistent object (i.e. actually stores stuff!) */
-#define ECHO_PERSISTENT_OBJID    1ULL
-#define ECHO_PERSISTENT_SIZE     ((__u64)(1<<20))
-
-/* block size to use for data verification */
-#define OBD_ECHO_BLOCK_SIZE	(4<<10)
-
-
-#endif
diff --git a/drivers/staging/lustre/lustre/osc/Makefile b/drivers/staging/lustre/lustre/osc/Makefile
deleted file mode 100644
index 37cdeea9ac49..000000000000
--- a/drivers/staging/lustre/lustre/osc/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_LUSTRE_FS) += osc.o
-osc-y := osc_request.o osc_dev.o osc_object.o \
-	 osc_page.o osc_lock.o osc_io.o osc_quota.o osc_cache.o lproc_osc.o
diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c
deleted file mode 100644
index ff6d2e2ffdab..000000000000
--- a/drivers/staging/lustre/lustre/osc/lproc_osc.c
+++ /dev/null
@@ -1,775 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/statfs.h>
-#include "../include/obd_cksum.h"
-#include "../include/obd_class.h"
-#include "../include/lprocfs_status.h"
-#include <linux/seq_file.h>
-#include "osc_internal.h"
-
-static ssize_t active_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-
-	return sprintf(buf, "%d\n", !dev->u.cli.cl_import->imp_deactive);
-}
-
-static ssize_t active_store(struct kobject *kobj, struct attribute *attr,
-			    const char *buffer,
-			    size_t count)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-	if (val < 0 || val > 1)
-		return -ERANGE;
-
-	/* opposite senses */
-	if (dev->u.cli.cl_import->imp_deactive == val)
-		rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
-	else
-		CDEBUG(D_CONFIG, "activate %ld: ignoring repeat request\n",
-		       val);
-
-	return count;
-}
-LUSTRE_RW_ATTR(active);
-
-static ssize_t max_rpcs_in_flight_show(struct kobject *kobj,
-				       struct attribute *attr,
-				       char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-
-	return sprintf(buf, "%u\n", cli->cl_max_rpcs_in_flight);
-}
-
-static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
-					struct attribute *attr,
-					const char *buffer,
-					size_t count)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	struct ptlrpc_request_pool *pool = cli->cl_import->imp_rq_pool;
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val < 1 || val > OSC_MAX_RIF_MAX)
-		return -ERANGE;
-
-	if (pool && val > cli->cl_max_rpcs_in_flight)
-		pool->prp_populate(pool, val-cli->cl_max_rpcs_in_flight);
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	cli->cl_max_rpcs_in_flight = val;
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_rpcs_in_flight);
-
-static ssize_t max_dirty_mb_show(struct kobject *kobj,
-				 struct attribute *attr,
-				 char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	long val;
-	int mult;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	val = cli->cl_dirty_max;
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	mult = 1 << 20;
-	return lprocfs_read_frac_helper(buf, PAGE_SIZE, val, mult);
-}
-
-static ssize_t max_dirty_mb_store(struct kobject *kobj,
-				  struct attribute *attr,
-				  const char *buffer,
-				  size_t count)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	int rc;
-	unsigned long pages_number;
-
-	rc = kstrtoul(buffer, 10, &pages_number);
-	if (rc)
-		return rc;
-
-	pages_number *= 1 << (20 - PAGE_CACHE_SHIFT); /* MB -> pages */
-
-	if (pages_number <= 0 ||
-	    pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_CACHE_SHIFT) ||
-	    pages_number > totalram_pages / 4) /* 1/4 of RAM */
-		return -ERANGE;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	cli->cl_dirty_max = (u32)(pages_number << PAGE_CACHE_SHIFT);
-	osc_wake_cache_waiters(cli);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_dirty_mb);
-
-static int osc_cached_mb_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *dev = m->private;
-	struct client_obd *cli = &dev->u.cli;
-	int shift = 20 - PAGE_CACHE_SHIFT;
-
-	seq_printf(m,
-		   "used_mb: %d\n"
-		   "busy_cnt: %d\n",
-		   (atomic_read(&cli->cl_lru_in_list) +
-		    atomic_read(&cli->cl_lru_busy)) >> shift,
-		   atomic_read(&cli->cl_lru_busy));
-
-	return 0;
-}
-
-/* shrink the number of caching pages to a specific number */
-static ssize_t osc_cached_mb_seq_write(struct file *file,
-				       const char __user *buffer,
-				       size_t count, loff_t *off)
-{
-	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
-	struct client_obd *cli = &dev->u.cli;
-	int pages_number, mult, rc;
-	char kernbuf[128];
-
-	if (count >= sizeof(kernbuf))
-		return -EINVAL;
-
-	if (copy_from_user(kernbuf, buffer, count))
-		return -EFAULT;
-	kernbuf[count] = 0;
-
-	mult = 1 << (20 - PAGE_CACHE_SHIFT);
-	buffer += lprocfs_find_named_value(kernbuf, "used_mb:", &count) -
-		  kernbuf;
-	rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
-	if (rc)
-		return rc;
-
-	if (pages_number < 0)
-		return -ERANGE;
-
-	rc = atomic_read(&cli->cl_lru_in_list) - pages_number;
-	if (rc > 0)
-		(void)osc_lru_shrink(cli, rc);
-
-	return count;
-}
-LPROC_SEQ_FOPS(osc_cached_mb);
-
-static ssize_t cur_dirty_bytes_show(struct kobject *kobj,
-				    struct attribute *attr,
-				    char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	int len;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	len = sprintf(buf, "%lu\n", cli->cl_dirty);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return len;
-}
-LUSTRE_RO_ATTR(cur_dirty_bytes);
-
-static ssize_t cur_grant_bytes_show(struct kobject *kobj,
-				    struct attribute *attr,
-				    char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	int len;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	len = sprintf(buf, "%lu\n", cli->cl_avail_grant);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return len;
-}
-
-static ssize_t cur_grant_bytes_store(struct kobject *kobj,
-				     struct attribute *attr,
-				     const char *buffer,
-				     size_t count)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &obd->u.cli;
-	int rc;
-	unsigned long long val;
-
-	rc = kstrtoull(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	/* this is only for shrinking grant */
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	if (val >= cli->cl_avail_grant) {
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-		return -EINVAL;
-	}
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	if (cli->cl_import->imp_state == LUSTRE_IMP_FULL)
-		rc = osc_shrink_grant_to_target(cli, val);
-	if (rc)
-		return rc;
-	return count;
-}
-LUSTRE_RW_ATTR(cur_grant_bytes);
-
-static ssize_t cur_lost_grant_bytes_show(struct kobject *kobj,
-					 struct attribute *attr,
-					 char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	int len;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	len = sprintf(buf, "%lu\n", cli->cl_lost_grant);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return len;
-}
-LUSTRE_RO_ATTR(cur_lost_grant_bytes);
-
-static ssize_t grant_shrink_interval_show(struct kobject *kobj,
-					  struct attribute *attr,
-					  char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-
-	return sprintf(buf, "%d\n", obd->u.cli.cl_grant_shrink_interval);
-}
-
-static ssize_t grant_shrink_interval_store(struct kobject *kobj,
-					   struct attribute *attr,
-					   const char *buffer,
-					   size_t count)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val <= 0)
-		return -ERANGE;
-
-	obd->u.cli.cl_grant_shrink_interval = val;
-
-	return count;
-}
-LUSTRE_RW_ATTR(grant_shrink_interval);
-
-static ssize_t checksums_show(struct kobject *kobj,
-			      struct attribute *attr,
-			      char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-
-	return sprintf(buf, "%d\n", obd->u.cli.cl_checksum ? 1 : 0);
-}
-
-static ssize_t checksums_store(struct kobject *kobj,
-			       struct attribute *attr,
-			       const char *buffer,
-			       size_t count)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	obd->u.cli.cl_checksum = (val ? 1 : 0);
-
-	return count;
-}
-LUSTRE_RW_ATTR(checksums);
-
-static int osc_checksum_type_seq_show(struct seq_file *m, void *v)
-{
-	struct obd_device *obd = m->private;
-	int i;
-	DECLARE_CKSUM_NAME;
-
-	if (obd == NULL)
-		return 0;
-
-	for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
-		if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
-			continue;
-		if (obd->u.cli.cl_cksum_type == (1 << i))
-			seq_printf(m, "[%s] ", cksum_name[i]);
-		else
-			seq_printf(m, "%s ", cksum_name[i]);
-	}
-	seq_putc(m, '\n');
-	return 0;
-}
-
-static ssize_t osc_checksum_type_seq_write(struct file *file,
-				const char __user *buffer,
-				size_t count, loff_t *off)
-{
-	struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
-	int i;
-	DECLARE_CKSUM_NAME;
-	char kernbuf[10];
-
-	if (obd == NULL)
-		return 0;
-
-	if (count > sizeof(kernbuf) - 1)
-		return -EINVAL;
-	if (copy_from_user(kernbuf, buffer, count))
-		return -EFAULT;
-	if (count > 0 && kernbuf[count - 1] == '\n')
-		kernbuf[count - 1] = '\0';
-	else
-		kernbuf[count] = '\0';
-
-	for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
-		if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
-			continue;
-		if (!strcmp(kernbuf, cksum_name[i])) {
-		       obd->u.cli.cl_cksum_type = 1 << i;
-		       return count;
-		}
-	}
-	return -EINVAL;
-}
-LPROC_SEQ_FOPS(osc_checksum_type);
-
-static ssize_t resend_count_show(struct kobject *kobj,
-				 struct attribute *attr,
-				 char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-
-	return sprintf(buf, "%u\n", atomic_read(&obd->u.cli.cl_resends));
-}
-
-static ssize_t resend_count_store(struct kobject *kobj,
-				  struct attribute *attr,
-				  const char *buffer,
-				  size_t count)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	if (val < 0)
-	       return -EINVAL;
-
-	atomic_set(&obd->u.cli.cl_resends, val);
-
-	return count;
-}
-LUSTRE_RW_ATTR(resend_count);
-
-static ssize_t contention_seconds_show(struct kobject *kobj,
-				       struct attribute *attr,
-				       char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct osc_device *od  = obd2osc_dev(obd);
-
-	return sprintf(buf, "%u\n", od->od_contention_time);
-}
-
-static ssize_t contention_seconds_store(struct kobject *kobj,
-					struct attribute *attr,
-					const char *buffer,
-					size_t count)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct osc_device *od  = obd2osc_dev(obd);
-
-	return lprocfs_write_helper(buffer, count, &od->od_contention_time) ?:
-		count;
-}
-LUSTRE_RW_ATTR(contention_seconds);
-
-static ssize_t lockless_truncate_show(struct kobject *kobj,
-				      struct attribute *attr,
-				      char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct osc_device *od  = obd2osc_dev(obd);
-
-	return sprintf(buf, "%u\n", od->od_lockless_truncate);
-}
-
-static ssize_t lockless_truncate_store(struct kobject *kobj,
-				       struct attribute *attr,
-				       const char *buffer,
-				       size_t count)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct osc_device *od  = obd2osc_dev(obd);
-
-	return lprocfs_write_helper(buffer, count, &od->od_lockless_truncate) ?:
-		count;
-}
-LUSTRE_RW_ATTR(lockless_truncate);
-
-static ssize_t destroys_in_flight_show(struct kobject *kobj,
-				       struct attribute *attr,
-				       char *buf)
-{
-	struct obd_device *obd = container_of(kobj, struct obd_device,
-					      obd_kobj);
-
-	return sprintf(buf, "%u\n",
-		       atomic_read(&obd->u.cli.cl_destroy_in_flight));
-}
-LUSTRE_RO_ATTR(destroys_in_flight);
-
-static ssize_t max_pages_per_rpc_show(struct kobject *kobj,
-				      struct attribute *attr,
-				      char *buf)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-
-	return sprintf(buf, "%d\n", cli->cl_max_pages_per_rpc);
-}
-
-static ssize_t max_pages_per_rpc_store(struct kobject *kobj,
-				       struct attribute *attr,
-				       const char *buffer,
-				       size_t count)
-{
-	struct obd_device *dev = container_of(kobj, struct obd_device,
-					      obd_kobj);
-	struct client_obd *cli = &dev->u.cli;
-	struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
-	int chunk_mask, rc;
-	unsigned long long val;
-
-	rc = kstrtoull(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	/* if the max_pages is specified in bytes, convert to pages */
-	if (val >= ONE_MB_BRW_SIZE)
-		val >>= PAGE_CACHE_SHIFT;
-
-	chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_CACHE_SHIFT)) - 1);
-	/* max_pages_per_rpc must be chunk aligned */
-	val = (val + ~chunk_mask) & chunk_mask;
-	if (val == 0 || val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT) {
-		return -ERANGE;
-	}
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	cli->cl_max_pages_per_rpc = val;
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_pages_per_rpc);
-
-LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags);
-LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid);
-LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts);
-LPROC_SEQ_FOPS_RO_TYPE(osc, state);
-
-LPROC_SEQ_FOPS_WR_ONLY(osc, ping);
-
-LPROC_SEQ_FOPS_RW_TYPE(osc, import);
-LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov);
-
-static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
-	{ "ping",	     &osc_ping_fops,    NULL, 0222 },
-	{ "connect_flags",   &osc_connect_flags_fops, NULL, 0 },
-	/*{ "filegroups",      lprocfs_rd_filegroups,  NULL, 0 },*/
-	{ "ost_server_uuid", &osc_server_uuid_fops, NULL, 0 },
-	{ "ost_conn_uuid",   &osc_conn_uuid_fops, NULL, 0 },
-	{ "osc_cached_mb",   &osc_cached_mb_fops, NULL },
-	{ "checksum_type",   &osc_checksum_type_fops, NULL },
-	{ "timeouts",	     &osc_timeouts_fops, NULL, 0 },
-	{ "import",		&osc_import_fops, NULL },
-	{ "state",		&osc_state_fops, NULL, 0 },
-	{ "pinger_recov",	&osc_pinger_recov_fops, NULL },
-	{ NULL }
-};
-
-#define pct(a, b) (b ? a * 100 / b : 0)
-
-static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
-{
-	struct timeval now;
-	struct obd_device *dev = seq->private;
-	struct client_obd *cli = &dev->u.cli;
-	unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
-	int i;
-
-	do_gettimeofday(&now);
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-
-	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, (unsigned long)now.tv_usec);
-	seq_printf(seq, "read RPCs in flight:  %d\n",
-		   cli->cl_r_in_flight);
-	seq_printf(seq, "write RPCs in flight: %d\n",
-		   cli->cl_w_in_flight);
-	seq_printf(seq, "pending write pages:  %d\n",
-		   atomic_read(&cli->cl_pending_w_pages));
-	seq_printf(seq, "pending read pages:   %d\n",
-		   atomic_read(&cli->cl_pending_r_pages));
-
-	seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
-	seq_puts(seq, "pages per rpc	 rpcs   % cum % |");
-	seq_puts(seq, "       rpcs   % cum %\n");
-
-	read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
-	write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
-
-	read_cum = 0;
-	write_cum = 0;
-	for (i = 0; i < OBD_HIST_MAX; i++) {
-		unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
-		unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
-		read_cum += r;
-		write_cum += w;
-		seq_printf(seq, "%d:\t\t%10lu %3lu %3lu   | %10lu %3lu %3lu\n",
-				 1 << i, r, pct(r, read_tot),
-				 pct(read_cum, read_tot), w,
-				 pct(w, write_tot),
-				 pct(write_cum, write_tot));
-		if (read_cum == read_tot && write_cum == write_tot)
-			break;
-	}
-
-	seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
-	seq_puts(seq, "rpcs in flight	rpcs   % cum % |");
-	seq_puts(seq, "       rpcs   % cum %\n");
-
-	read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
-	write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
-
-	read_cum = 0;
-	write_cum = 0;
-	for (i = 0; i < OBD_HIST_MAX; i++) {
-		unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
-		unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
-		read_cum += r;
-		write_cum += w;
-		seq_printf(seq, "%d:\t\t%10lu %3lu %3lu   | %10lu %3lu %3lu\n",
-				 i, r, pct(r, read_tot),
-				 pct(read_cum, read_tot), w,
-				 pct(w, write_tot),
-				 pct(write_cum, write_tot));
-		if (read_cum == read_tot && write_cum == write_tot)
-			break;
-	}
-
-	seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
-	seq_puts(seq, "offset		rpcs   % cum % |");
-	seq_puts(seq, "       rpcs   % cum %\n");
-
-	read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
-	write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
-
-	read_cum = 0;
-	write_cum = 0;
-	for (i = 0; i < OBD_HIST_MAX; i++) {
-		unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
-		unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
-		read_cum += r;
-		write_cum += w;
-		seq_printf(seq, "%d:\t\t%10lu %3lu %3lu   | %10lu %3lu %3lu\n",
-			   (i == 0) ? 0 : 1 << (i - 1),
-			   r, pct(r, read_tot), pct(read_cum, read_tot),
-			   w, pct(w, write_tot), pct(write_cum, write_tot));
-		if (read_cum == read_tot && write_cum == write_tot)
-			break;
-	}
-
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return 0;
-}
-#undef pct
-
-static ssize_t osc_rpc_stats_seq_write(struct file *file,
-				       const char __user *buf,
-				       size_t len, loff_t *off)
-{
-	struct seq_file *seq = file->private_data;
-	struct obd_device *dev = seq->private;
-	struct client_obd *cli = &dev->u.cli;
-
-	lprocfs_oh_clear(&cli->cl_read_rpc_hist);
-	lprocfs_oh_clear(&cli->cl_write_rpc_hist);
-	lprocfs_oh_clear(&cli->cl_read_page_hist);
-	lprocfs_oh_clear(&cli->cl_write_page_hist);
-	lprocfs_oh_clear(&cli->cl_read_offset_hist);
-	lprocfs_oh_clear(&cli->cl_write_offset_hist);
-
-	return len;
-}
-
-LPROC_SEQ_FOPS(osc_rpc_stats);
-
-static int osc_stats_seq_show(struct seq_file *seq, void *v)
-{
-	struct timeval now;
-	struct obd_device *dev = seq->private;
-	struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
-
-	do_gettimeofday(&now);
-
-	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, (unsigned long)now.tv_usec);
-	seq_printf(seq, "lockless_write_bytes\t\t%llu\n",
-		   stats->os_lockless_writes);
-	seq_printf(seq, "lockless_read_bytes\t\t%llu\n",
-		   stats->os_lockless_reads);
-	seq_printf(seq, "lockless_truncate\t\t%llu\n",
-		   stats->os_lockless_truncates);
-	return 0;
-}
-
-static ssize_t osc_stats_seq_write(struct file *file,
-				   const char __user *buf,
-				   size_t len, loff_t *off)
-{
-	struct seq_file *seq = file->private_data;
-	struct obd_device *dev = seq->private;
-	struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
-
-	memset(stats, 0, sizeof(*stats));
-	return len;
-}
-
-LPROC_SEQ_FOPS(osc_stats);
-
-int lproc_osc_attach_seqstat(struct obd_device *dev)
-{
-	int rc;
-
-	rc = ldebugfs_seq_create(dev->obd_debugfs_entry, "osc_stats", 0644,
-				 &osc_stats_fops, dev);
-	if (rc == 0)
-		rc = ldebugfs_obd_seq_create(dev, "rpc_stats", 0644,
-					     &osc_rpc_stats_fops, dev);
-
-	return rc;
-}
-
-static struct attribute *osc_attrs[] = {
-	&lustre_attr_active.attr,
-	&lustre_attr_checksums.attr,
-	&lustre_attr_contention_seconds.attr,
-	&lustre_attr_cur_dirty_bytes.attr,
-	&lustre_attr_cur_grant_bytes.attr,
-	&lustre_attr_cur_lost_grant_bytes.attr,
-	&lustre_attr_destroys_in_flight.attr,
-	&lustre_attr_grant_shrink_interval.attr,
-	&lustre_attr_lockless_truncate.attr,
-	&lustre_attr_max_dirty_mb.attr,
-	&lustre_attr_max_pages_per_rpc.attr,
-	&lustre_attr_max_rpcs_in_flight.attr,
-	&lustre_attr_resend_count.attr,
-	NULL,
-};
-
-static struct attribute_group osc_attr_group = {
-	.attrs = osc_attrs,
-};
-
-void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars)
-{
-	lvars->sysfs_vars  = &osc_attr_group;
-	lvars->obd_vars    = lprocfs_osc_obd_vars;
-}
diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c
deleted file mode 100644
index c72035e048aa..000000000000
--- a/drivers/staging/lustre/lustre/osc/osc_cache.c
+++ /dev/null
@@ -1,2938 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- *
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * osc cache management.
- *
- * Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_OSC
-
-#include "osc_cl_internal.h"
-#include "osc_internal.h"
-
-static int extent_debug; /* set it to be true for more debug */
-
-static void osc_update_pending(struct osc_object *obj, int cmd, int delta);
-static int osc_extent_wait(const struct lu_env *env, struct osc_extent *ext,
-			   int state);
-static void osc_ap_completion(const struct lu_env *env, struct client_obd *cli,
-			      struct osc_async_page *oap, int sent, int rc);
-static int osc_make_ready(const struct lu_env *env, struct osc_async_page *oap,
-			  int cmd);
-static int osc_refresh_count(const struct lu_env *env,
-			     struct osc_async_page *oap, int cmd);
-static int osc_io_unplug_async(const struct lu_env *env,
-			       struct client_obd *cli, struct osc_object *osc);
-static void osc_free_grant(struct client_obd *cli, unsigned int nr_pages,
-			   unsigned int lost_grant);
-
-static void osc_extent_tree_dump0(int level, struct osc_object *obj,
-				  const char *func, int line);
-#define osc_extent_tree_dump(lvl, obj) \
-	osc_extent_tree_dump0(lvl, obj, __func__, __LINE__)
-
-/** \addtogroup osc
- *  @{
- */
-
-/* ------------------ osc extent ------------------ */
-static inline char *ext_flags(struct osc_extent *ext, char *flags)
-{
-	char *buf = flags;
-	*buf++ = ext->oe_rw ? 'r' : 'w';
-	if (ext->oe_intree)
-		*buf++ = 'i';
-	if (ext->oe_srvlock)
-		*buf++ = 's';
-	if (ext->oe_hp)
-		*buf++ = 'h';
-	if (ext->oe_urgent)
-		*buf++ = 'u';
-	if (ext->oe_memalloc)
-		*buf++ = 'm';
-	if (ext->oe_trunc_pending)
-		*buf++ = 't';
-	if (ext->oe_fsync_wait)
-		*buf++ = 'Y';
-	*buf = 0;
-	return flags;
-}
-
-static inline char list_empty_marker(struct list_head *list)
-{
-	return list_empty(list) ? '-' : '+';
-}
-
-#define EXTSTR       "[%lu -> %lu/%lu]"
-#define EXTPARA(ext) (ext)->oe_start, (ext)->oe_end, (ext)->oe_max_end
-static const char *oes_strings[] = {
-	"inv", "active", "cache", "locking", "lockdone", "rpc", "trunc", NULL };
-
-#define OSC_EXTENT_DUMP(lvl, extent, fmt, ...) do {			      \
-	struct osc_extent *__ext = (extent);				      \
-	char __buf[16];							      \
-									      \
-	CDEBUG(lvl,							      \
-		"extent %p@{" EXTSTR ", "				      \
-		"[%d|%d|%c|%s|%s|%p], [%d|%d|%c|%c|%p|%u|%p]} " fmt,	      \
-		/* ----- extent part 0 ----- */				      \
-		__ext, EXTPARA(__ext),					      \
-		/* ----- part 1 ----- */				      \
-		atomic_read(&__ext->oe_refc),				      \
-		atomic_read(&__ext->oe_users),				      \
-		list_empty_marker(&__ext->oe_link),			      \
-		oes_strings[__ext->oe_state], ext_flags(__ext, __buf),	      \
-		__ext->oe_obj,						      \
-		/* ----- part 2 ----- */				      \
-		__ext->oe_grants, __ext->oe_nr_pages,			      \
-		list_empty_marker(&__ext->oe_pages),			      \
-		waitqueue_active(&__ext->oe_waitq) ? '+' : '-',		      \
-		__ext->oe_osclock, __ext->oe_mppr, __ext->oe_owner,	      \
-		/* ----- part 4 ----- */				      \
-		## __VA_ARGS__);					      \
-} while (0)
-
-#undef EASSERTF
-#define EASSERTF(expr, ext, fmt, args...) do {				\
-	if (!(expr)) {							\
-		OSC_EXTENT_DUMP(D_ERROR, (ext), fmt, ##args);		\
-		osc_extent_tree_dump(D_ERROR, (ext)->oe_obj);		\
-		LASSERT(expr);						\
-	}								\
-} while (0)
-
-#undef EASSERT
-#define EASSERT(expr, ext) EASSERTF(expr, ext, "\n")
-
-static inline struct osc_extent *rb_extent(struct rb_node *n)
-{
-	if (n == NULL)
-		return NULL;
-
-	return container_of(n, struct osc_extent, oe_node);
-}
-
-static inline struct osc_extent *next_extent(struct osc_extent *ext)
-{
-	if (ext == NULL)
-		return NULL;
-
-	LASSERT(ext->oe_intree);
-	return rb_extent(rb_next(&ext->oe_node));
-}
-
-static inline struct osc_extent *prev_extent(struct osc_extent *ext)
-{
-	if (ext == NULL)
-		return NULL;
-
-	LASSERT(ext->oe_intree);
-	return rb_extent(rb_prev(&ext->oe_node));
-}
-
-static inline struct osc_extent *first_extent(struct osc_object *obj)
-{
-	return rb_extent(rb_first(&obj->oo_root));
-}
-
-/* object must be locked by caller. */
-static int osc_extent_sanity_check0(struct osc_extent *ext,
-				    const char *func, const int line)
-{
-	struct osc_object *obj = ext->oe_obj;
-	struct osc_async_page *oap;
-	int page_count;
-	int rc = 0;
-
-	if (!osc_object_is_locked(obj)) {
-		rc = 9;
-		goto out;
-	}
-
-	if (ext->oe_state >= OES_STATE_MAX) {
-		rc = 10;
-		goto out;
-	}
-
-	if (atomic_read(&ext->oe_refc) <= 0) {
-		rc = 20;
-		goto out;
-	}
-
-	if (atomic_read(&ext->oe_refc) < atomic_read(&ext->oe_users)) {
-		rc = 30;
-		goto out;
-	}
-
-	switch (ext->oe_state) {
-	case OES_INV:
-		if (ext->oe_nr_pages > 0 || !list_empty(&ext->oe_pages))
-			rc = 35;
-		else
-			rc = 0;
-		goto out;
-	case OES_ACTIVE:
-		if (atomic_read(&ext->oe_users) == 0) {
-			rc = 40;
-			goto out;
-		}
-		if (ext->oe_hp) {
-			rc = 50;
-			goto out;
-		}
-		if (ext->oe_fsync_wait && !ext->oe_urgent) {
-			rc = 55;
-			goto out;
-		}
-		break;
-	case OES_CACHE:
-		if (ext->oe_grants == 0) {
-			rc = 60;
-			goto out;
-		}
-		if (ext->oe_fsync_wait && !ext->oe_urgent && !ext->oe_hp) {
-			rc = 65;
-			goto out;
-		}
-	default:
-		if (atomic_read(&ext->oe_users) > 0) {
-			rc = 70;
-			goto out;
-		}
-	}
-
-	if (ext->oe_max_end < ext->oe_end || ext->oe_end < ext->oe_start) {
-		rc = 80;
-		goto out;
-	}
-
-	if (ext->oe_osclock == NULL && ext->oe_grants > 0) {
-		rc = 90;
-		goto out;
-	}
-
-	if (ext->oe_osclock) {
-		struct cl_lock_descr *descr;
-		descr = &ext->oe_osclock->cll_descr;
-		if (!(descr->cld_start <= ext->oe_start &&
-		      descr->cld_end >= ext->oe_max_end)) {
-			rc = 100;
-			goto out;
-		}
-	}
-
-	if (ext->oe_nr_pages > ext->oe_mppr) {
-		rc = 105;
-		goto out;
-	}
-
-	/* Do not verify page list if extent is in RPC. This is because an
-	 * in-RPC extent is supposed to be exclusively accessible w/o lock. */
-	if (ext->oe_state > OES_CACHE) {
-		rc = 0;
-		goto out;
-	}
-
-	if (!extent_debug) {
-		rc = 0;
-		goto out;
-	}
-
-	page_count = 0;
-	list_for_each_entry(oap, &ext->oe_pages, oap_pending_item) {
-		pgoff_t index = oap2cl_page(oap)->cp_index;
-		++page_count;
-		if (index > ext->oe_end || index < ext->oe_start) {
-			rc = 110;
-			goto out;
-		}
-	}
-	if (page_count != ext->oe_nr_pages) {
-		rc = 120;
-		goto out;
-	}
-
-out:
-	if (rc != 0)
-		OSC_EXTENT_DUMP(D_ERROR, ext,
-				"%s:%d sanity check %p failed with rc = %d\n",
-				func, line, ext, rc);
-	return rc;
-}
-
-#define sanity_check_nolock(ext) \
-	osc_extent_sanity_check0(ext, __func__, __LINE__)
-
-#define sanity_check(ext) ({						\
-	int __res;							\
-	osc_object_lock((ext)->oe_obj);					\
-	__res = sanity_check_nolock(ext);				\
-	osc_object_unlock((ext)->oe_obj);				\
-	__res;								\
-})
-
-
-/**
- * sanity check - to make sure there is no overlapped extent in the tree.
- */
-static int osc_extent_is_overlapped(struct osc_object *obj,
-				    struct osc_extent *ext)
-{
-	struct osc_extent *tmp;
-
-	LASSERT(osc_object_is_locked(obj));
-
-	if (!extent_debug)
-		return 0;
-
-	for (tmp = first_extent(obj); tmp != NULL; tmp = next_extent(tmp)) {
-		if (tmp == ext)
-			continue;
-		if (tmp->oe_end >= ext->oe_start &&
-		    tmp->oe_start <= ext->oe_end)
-			return 1;
-	}
-	return 0;
-}
-
-static void osc_extent_state_set(struct osc_extent *ext, int state)
-{
-	LASSERT(osc_object_is_locked(ext->oe_obj));
-	LASSERT(state >= OES_INV && state < OES_STATE_MAX);
-
-	/* Never try to sanity check a state changing extent :-) */
-	/* LASSERT(sanity_check_nolock(ext) == 0); */
-
-	/* TODO: validate the state machine */
-	ext->oe_state = state;
-	wake_up_all(&ext->oe_waitq);
-}
-
-static struct osc_extent *osc_extent_alloc(struct osc_object *obj)
-{
-	struct osc_extent *ext;
-
-	OBD_SLAB_ALLOC_PTR_GFP(ext, osc_extent_kmem, GFP_IOFS);
-	if (ext == NULL)
-		return NULL;
-
-	RB_CLEAR_NODE(&ext->oe_node);
-	ext->oe_obj = obj;
-	atomic_set(&ext->oe_refc, 1);
-	atomic_set(&ext->oe_users, 0);
-	INIT_LIST_HEAD(&ext->oe_link);
-	ext->oe_state = OES_INV;
-	INIT_LIST_HEAD(&ext->oe_pages);
-	init_waitqueue_head(&ext->oe_waitq);
-	ext->oe_osclock = NULL;
-
-	return ext;
-}
-
-static void osc_extent_free(struct osc_extent *ext)
-{
-	OBD_SLAB_FREE_PTR(ext, osc_extent_kmem);
-}
-
-static struct osc_extent *osc_extent_get(struct osc_extent *ext)
-{
-	LASSERT(atomic_read(&ext->oe_refc) >= 0);
-	atomic_inc(&ext->oe_refc);
-	return ext;
-}
-
-static void osc_extent_put(const struct lu_env *env, struct osc_extent *ext)
-{
-	LASSERT(atomic_read(&ext->oe_refc) > 0);
-	if (atomic_dec_and_test(&ext->oe_refc)) {
-		LASSERT(list_empty(&ext->oe_link));
-		LASSERT(atomic_read(&ext->oe_users) == 0);
-		LASSERT(ext->oe_state == OES_INV);
-		LASSERT(!ext->oe_intree);
-
-		if (ext->oe_osclock) {
-			cl_lock_put(env, ext->oe_osclock);
-			ext->oe_osclock = NULL;
-		}
-		osc_extent_free(ext);
-	}
-}
-
-/**
- * osc_extent_put_trust() is a special version of osc_extent_put() when
- * it's known that the caller is not the last user. This is to address the
- * problem of lacking of lu_env ;-).
- */
-static void osc_extent_put_trust(struct osc_extent *ext)
-{
-	LASSERT(atomic_read(&ext->oe_refc) > 1);
-	LASSERT(osc_object_is_locked(ext->oe_obj));
-	atomic_dec(&ext->oe_refc);
-}
-
-/**
- * Return the extent which includes pgoff @index, or return the greatest
- * previous extent in the tree.
- */
-static struct osc_extent *osc_extent_search(struct osc_object *obj,
-					    pgoff_t index)
-{
-	struct rb_node *n = obj->oo_root.rb_node;
-	struct osc_extent *tmp, *p = NULL;
-
-	LASSERT(osc_object_is_locked(obj));
-	while (n != NULL) {
-		tmp = rb_extent(n);
-		if (index < tmp->oe_start) {
-			n = n->rb_left;
-		} else if (index > tmp->oe_end) {
-			p = rb_extent(n);
-			n = n->rb_right;
-		} else {
-			return tmp;
-		}
-	}
-	return p;
-}
-
-/*
- * Return the extent covering @index, otherwise return NULL.
- * caller must have held object lock.
- */
-static struct osc_extent *osc_extent_lookup(struct osc_object *obj,
-					    pgoff_t index)
-{
-	struct osc_extent *ext;
-
-	ext = osc_extent_search(obj, index);
-	if (ext != NULL && ext->oe_start <= index && index <= ext->oe_end)
-		return osc_extent_get(ext);
-	return NULL;
-}
-
-/* caller must have held object lock. */
-static void osc_extent_insert(struct osc_object *obj, struct osc_extent *ext)
-{
-	struct rb_node **n = &obj->oo_root.rb_node;
-	struct rb_node *parent = NULL;
-	struct osc_extent *tmp;
-
-	LASSERT(ext->oe_intree == 0);
-	LASSERT(ext->oe_obj == obj);
-	LASSERT(osc_object_is_locked(obj));
-	while (*n != NULL) {
-		tmp = rb_extent(*n);
-		parent = *n;
-
-		if (ext->oe_end < tmp->oe_start)
-			n = &(*n)->rb_left;
-		else if (ext->oe_start > tmp->oe_end)
-			n = &(*n)->rb_right;
-		else
-			EASSERTF(0, tmp, EXTSTR, EXTPARA(ext));
-	}
-	rb_link_node(&ext->oe_node, parent, n);
-	rb_insert_color(&ext->oe_node, &obj->oo_root);
-	osc_extent_get(ext);
-	ext->oe_intree = 1;
-}
-
-/* caller must have held object lock. */
-static void osc_extent_erase(struct osc_extent *ext)
-{
-	struct osc_object *obj = ext->oe_obj;
-	LASSERT(osc_object_is_locked(obj));
-	if (ext->oe_intree) {
-		rb_erase(&ext->oe_node, &obj->oo_root);
-		ext->oe_intree = 0;
-		/* rbtree held a refcount */
-		osc_extent_put_trust(ext);
-	}
-}
-
-static struct osc_extent *osc_extent_hold(struct osc_extent *ext)
-{
-	struct osc_object *obj = ext->oe_obj;
-
-	LASSERT(osc_object_is_locked(obj));
-	LASSERT(ext->oe_state == OES_ACTIVE || ext->oe_state == OES_CACHE);
-	if (ext->oe_state == OES_CACHE) {
-		osc_extent_state_set(ext, OES_ACTIVE);
-		osc_update_pending(obj, OBD_BRW_WRITE, -ext->oe_nr_pages);
-	}
-	atomic_inc(&ext->oe_users);
-	list_del_init(&ext->oe_link);
-	return osc_extent_get(ext);
-}
-
-static void __osc_extent_remove(struct osc_extent *ext)
-{
-	LASSERT(osc_object_is_locked(ext->oe_obj));
-	LASSERT(list_empty(&ext->oe_pages));
-	osc_extent_erase(ext);
-	list_del_init(&ext->oe_link);
-	osc_extent_state_set(ext, OES_INV);
-	OSC_EXTENT_DUMP(D_CACHE, ext, "destroyed.\n");
-}
-
-static void osc_extent_remove(struct osc_extent *ext)
-{
-	struct osc_object *obj = ext->oe_obj;
-
-	osc_object_lock(obj);
-	__osc_extent_remove(ext);
-	osc_object_unlock(obj);
-}
-
-/**
- * This function is used to merge extents to get better performance. It checks
- * if @cur and @victim are contiguous at chunk level.
- */
-static int osc_extent_merge(const struct lu_env *env, struct osc_extent *cur,
-			    struct osc_extent *victim)
-{
-	struct osc_object *obj = cur->oe_obj;
-	pgoff_t chunk_start;
-	pgoff_t chunk_end;
-	int ppc_bits;
-
-	LASSERT(cur->oe_state == OES_CACHE);
-	LASSERT(osc_object_is_locked(obj));
-	if (victim == NULL)
-		return -EINVAL;
-
-	if (victim->oe_state != OES_CACHE || victim->oe_fsync_wait)
-		return -EBUSY;
-
-	if (cur->oe_max_end != victim->oe_max_end)
-		return -ERANGE;
-
-	LASSERT(cur->oe_osclock == victim->oe_osclock);
-	ppc_bits = osc_cli(obj)->cl_chunkbits - PAGE_CACHE_SHIFT;
-	chunk_start = cur->oe_start >> ppc_bits;
-	chunk_end = cur->oe_end >> ppc_bits;
-	if (chunk_start != (victim->oe_end >> ppc_bits) + 1 &&
-	    chunk_end + 1 != victim->oe_start >> ppc_bits)
-		return -ERANGE;
-
-	OSC_EXTENT_DUMP(D_CACHE, victim, "will be merged by %p.\n", cur);
-
-	cur->oe_start = min(cur->oe_start, victim->oe_start);
-	cur->oe_end = max(cur->oe_end, victim->oe_end);
-	cur->oe_grants += victim->oe_grants;
-	cur->oe_nr_pages += victim->oe_nr_pages;
-	/* only the following bits are needed to merge */
-	cur->oe_urgent |= victim->oe_urgent;
-	cur->oe_memalloc |= victim->oe_memalloc;
-	list_splice_init(&victim->oe_pages, &cur->oe_pages);
-	list_del_init(&victim->oe_link);
-	victim->oe_nr_pages = 0;
-
-	osc_extent_get(victim);
-	__osc_extent_remove(victim);
-	osc_extent_put(env, victim);
-
-	OSC_EXTENT_DUMP(D_CACHE, cur, "after merging %p.\n", victim);
-	return 0;
-}
-
-/**
- * Drop user count of osc_extent, and unplug IO asynchronously.
- */
-void osc_extent_release(const struct lu_env *env, struct osc_extent *ext)
-{
-	struct osc_object *obj = ext->oe_obj;
-
-	LASSERT(atomic_read(&ext->oe_users) > 0);
-	LASSERT(sanity_check(ext) == 0);
-	LASSERT(ext->oe_grants > 0);
-
-	if (atomic_dec_and_lock(&ext->oe_users, &obj->oo_lock)) {
-		LASSERT(ext->oe_state == OES_ACTIVE);
-		if (ext->oe_trunc_pending) {
-			/* a truncate process is waiting for this extent.
-			 * This may happen due to a race, check
-			 * osc_cache_truncate_start(). */
-			osc_extent_state_set(ext, OES_TRUNC);
-			ext->oe_trunc_pending = 0;
-		} else {
-			osc_extent_state_set(ext, OES_CACHE);
-			osc_update_pending(obj, OBD_BRW_WRITE,
-					   ext->oe_nr_pages);
-
-			/* try to merge the previous and next extent. */
-			osc_extent_merge(env, ext, prev_extent(ext));
-			osc_extent_merge(env, ext, next_extent(ext));
-
-			if (ext->oe_urgent)
-				list_move_tail(&ext->oe_link,
-						   &obj->oo_urgent_exts);
-		}
-		osc_object_unlock(obj);
-
-		osc_io_unplug_async(env, osc_cli(obj), obj);
-	}
-	osc_extent_put(env, ext);
-}
-
-static inline int overlapped(struct osc_extent *ex1, struct osc_extent *ex2)
-{
-	return !(ex1->oe_end < ex2->oe_start || ex2->oe_end < ex1->oe_start);
-}
-
-/**
- * Find or create an extent which includes @index, core function to manage
- * extent tree.
- */
-struct osc_extent *osc_extent_find(const struct lu_env *env,
-				   struct osc_object *obj, pgoff_t index,
-				   int *grants)
-
-{
-	struct client_obd *cli = osc_cli(obj);
-	struct cl_lock *lock;
-	struct osc_extent *cur;
-	struct osc_extent *ext;
-	struct osc_extent *conflict = NULL;
-	struct osc_extent *found = NULL;
-	pgoff_t chunk;
-	pgoff_t max_end;
-	int max_pages; /* max_pages_per_rpc */
-	int chunksize;
-	int ppc_bits; /* pages per chunk bits */
-	int chunk_mask;
-	int rc;
-
-	cur = osc_extent_alloc(obj);
-	if (cur == NULL)
-		return ERR_PTR(-ENOMEM);
-
-	lock = cl_lock_at_pgoff(env, osc2cl(obj), index, NULL, 1, 0);
-	LASSERT(lock != NULL);
-	LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE);
-
-	LASSERT(cli->cl_chunkbits >= PAGE_CACHE_SHIFT);
-	ppc_bits = cli->cl_chunkbits - PAGE_CACHE_SHIFT;
-	chunk_mask = ~((1 << ppc_bits) - 1);
-	chunksize = 1 << cli->cl_chunkbits;
-	chunk = index >> ppc_bits;
-
-	/* align end to rpc edge, rpc size may not be a power 2 integer. */
-	max_pages = cli->cl_max_pages_per_rpc;
-	LASSERT((max_pages & ~chunk_mask) == 0);
-	max_end = index - (index % max_pages) + max_pages - 1;
-	max_end = min_t(pgoff_t, max_end, lock->cll_descr.cld_end);
-
-	/* initialize new extent by parameters so far */
-	cur->oe_max_end = max_end;
-	cur->oe_start = index & chunk_mask;
-	cur->oe_end = ((index + ~chunk_mask + 1) & chunk_mask) - 1;
-	if (cur->oe_start < lock->cll_descr.cld_start)
-		cur->oe_start = lock->cll_descr.cld_start;
-	if (cur->oe_end > max_end)
-		cur->oe_end = max_end;
-	cur->oe_osclock = lock;
-	cur->oe_grants = 0;
-	cur->oe_mppr = max_pages;
-
-	/* grants has been allocated by caller */
-	LASSERTF(*grants >= chunksize + cli->cl_extent_tax,
-		 "%u/%u/%u.\n", *grants, chunksize, cli->cl_extent_tax);
-	LASSERTF((max_end - cur->oe_start) < max_pages, EXTSTR, EXTPARA(cur));
-
-restart:
-	osc_object_lock(obj);
-	ext = osc_extent_search(obj, cur->oe_start);
-	if (ext == NULL)
-		ext = first_extent(obj);
-	while (ext != NULL) {
-		loff_t ext_chk_start = ext->oe_start >> ppc_bits;
-		loff_t ext_chk_end = ext->oe_end >> ppc_bits;
-
-		LASSERT(sanity_check_nolock(ext) == 0);
-		if (chunk > ext_chk_end + 1)
-			break;
-
-		/* if covering by different locks, no chance to match */
-		if (lock != ext->oe_osclock) {
-			EASSERTF(!overlapped(ext, cur), ext,
-				 EXTSTR, EXTPARA(cur));
-
-			ext = next_extent(ext);
-			continue;
-		}
-
-		/* discontiguous chunks? */
-		if (chunk + 1 < ext_chk_start) {
-			ext = next_extent(ext);
-			continue;
-		}
-
-		/* ok, from now on, ext and cur have these attrs:
-		 * 1. covered by the same lock
-		 * 2. contiguous at chunk level or overlapping. */
-
-		if (overlapped(ext, cur)) {
-			/* cur is the minimum unit, so overlapping means
-			 * full contain. */
-			EASSERTF((ext->oe_start <= cur->oe_start &&
-				  ext->oe_end >= cur->oe_end),
-				 ext, EXTSTR, EXTPARA(cur));
-
-			if (ext->oe_state > OES_CACHE || ext->oe_fsync_wait) {
-				/* for simplicity, we wait for this extent to
-				 * finish before going forward. */
-				conflict = osc_extent_get(ext);
-				break;
-			}
-
-			found = osc_extent_hold(ext);
-			break;
-		}
-
-		/* non-overlapped extent */
-		if (ext->oe_state != OES_CACHE || ext->oe_fsync_wait) {
-			/* we can't do anything for a non OES_CACHE extent, or
-			 * if there is someone waiting for this extent to be
-			 * flushed, try next one. */
-			ext = next_extent(ext);
-			continue;
-		}
-
-		/* check if they belong to the same rpc slot before trying to
-		 * merge. the extents are not overlapped and contiguous at
-		 * chunk level to get here. */
-		if (ext->oe_max_end != max_end) {
-			/* if they don't belong to the same RPC slot or
-			 * max_pages_per_rpc has ever changed, do not merge. */
-			ext = next_extent(ext);
-			continue;
-		}
-
-		/* it's required that an extent must be contiguous at chunk
-		 * level so that we know the whole extent is covered by grant
-		 * (the pages in the extent are NOT required to be contiguous).
-		 * Otherwise, it will be too much difficult to know which
-		 * chunks have grants allocated. */
-
-		/* try to do front merge - extend ext's start */
-		if (chunk + 1 == ext_chk_start) {
-			/* ext must be chunk size aligned */
-			EASSERT((ext->oe_start & ~chunk_mask) == 0, ext);
-
-			/* pull ext's start back to cover cur */
-			ext->oe_start = cur->oe_start;
-			ext->oe_grants += chunksize;
-			*grants -= chunksize;
-
-			found = osc_extent_hold(ext);
-		} else if (chunk == ext_chk_end + 1) {
-			/* rear merge */
-			ext->oe_end = cur->oe_end;
-			ext->oe_grants += chunksize;
-			*grants -= chunksize;
-
-			/* try to merge with the next one because we just fill
-			 * in a gap */
-			if (osc_extent_merge(env, ext, next_extent(ext)) == 0)
-				/* we can save extent tax from next extent */
-				*grants += cli->cl_extent_tax;
-
-			found = osc_extent_hold(ext);
-		}
-		if (found != NULL)
-			break;
-
-		ext = next_extent(ext);
-	}
-
-	osc_extent_tree_dump(D_CACHE, obj);
-	if (found != NULL) {
-		LASSERT(conflict == NULL);
-		if (!IS_ERR(found)) {
-			LASSERT(found->oe_osclock == cur->oe_osclock);
-			OSC_EXTENT_DUMP(D_CACHE, found,
-					"found caching ext for %lu.\n", index);
-		}
-	} else if (conflict == NULL) {
-		/* create a new extent */
-		EASSERT(osc_extent_is_overlapped(obj, cur) == 0, cur);
-		cur->oe_grants = chunksize + cli->cl_extent_tax;
-		*grants -= cur->oe_grants;
-		LASSERT(*grants >= 0);
-
-		cur->oe_state = OES_CACHE;
-		found = osc_extent_hold(cur);
-		osc_extent_insert(obj, cur);
-		OSC_EXTENT_DUMP(D_CACHE, cur, "add into tree %lu/%lu.\n",
-				index, lock->cll_descr.cld_end);
-	}
-	osc_object_unlock(obj);
-
-	if (conflict != NULL) {
-		LASSERT(found == NULL);
-
-		/* waiting for IO to finish. Please notice that it's impossible
-		 * to be an OES_TRUNC extent. */
-		rc = osc_extent_wait(env, conflict, OES_INV);
-		osc_extent_put(env, conflict);
-		conflict = NULL;
-		if (rc < 0) {
-			found = ERR_PTR(rc);
-			goto out;
-		}
-
-		goto restart;
-	}
-
-out:
-	osc_extent_put(env, cur);
-	LASSERT(*grants >= 0);
-	return found;
-}
-
-/**
- * Called when IO is finished to an extent.
- */
-int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext,
-		      int sent, int rc)
-{
-	struct client_obd *cli = osc_cli(ext->oe_obj);
-	struct osc_async_page *oap;
-	struct osc_async_page *tmp;
-	int nr_pages = ext->oe_nr_pages;
-	int lost_grant = 0;
-	int blocksize = cli->cl_import->imp_obd->obd_osfs.os_bsize ? : 4096;
-	__u64 last_off = 0;
-	int last_count = -1;
-
-	OSC_EXTENT_DUMP(D_CACHE, ext, "extent finished.\n");
-
-	ext->oe_rc = rc ?: ext->oe_nr_pages;
-	EASSERT(ergo(rc == 0, ext->oe_state == OES_RPC), ext);
-	list_for_each_entry_safe(oap, tmp, &ext->oe_pages,
-				     oap_pending_item) {
-		list_del_init(&oap->oap_rpc_item);
-		list_del_init(&oap->oap_pending_item);
-		if (last_off <= oap->oap_obj_off) {
-			last_off = oap->oap_obj_off;
-			last_count = oap->oap_count;
-		}
-
-		--ext->oe_nr_pages;
-		osc_ap_completion(env, cli, oap, sent, rc);
-	}
-	EASSERT(ext->oe_nr_pages == 0, ext);
-
-	if (!sent) {
-		lost_grant = ext->oe_grants;
-	} else if (blocksize < PAGE_CACHE_SIZE &&
-		   last_count != PAGE_CACHE_SIZE) {
-		/* For short writes we shouldn't count parts of pages that
-		 * span a whole chunk on the OST side, or our accounting goes
-		 * wrong.  Should match the code in filter_grant_check. */
-		int offset = oap->oap_page_off & ~CFS_PAGE_MASK;
-		int count = oap->oap_count + (offset & (blocksize - 1));
-		int end = (offset + oap->oap_count) & (blocksize - 1);
-		if (end)
-			count += blocksize - end;
-
-		lost_grant = PAGE_CACHE_SIZE - count;
-	}
-	if (ext->oe_grants > 0)
-		osc_free_grant(cli, nr_pages, lost_grant);
-
-	osc_extent_remove(ext);
-	/* put the refcount for RPC */
-	osc_extent_put(env, ext);
-	return 0;
-}
-
-static int extent_wait_cb(struct osc_extent *ext, int state)
-{
-	int ret;
-
-	osc_object_lock(ext->oe_obj);
-	ret = ext->oe_state == state;
-	osc_object_unlock(ext->oe_obj);
-
-	return ret;
-}
-
-/**
- * Wait for the extent's state to become @state.
- */
-static int osc_extent_wait(const struct lu_env *env, struct osc_extent *ext,
-			   int state)
-{
-	struct osc_object *obj = ext->oe_obj;
-	struct l_wait_info lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(600), NULL,
-						  LWI_ON_SIGNAL_NOOP, NULL);
-	int rc = 0;
-
-	osc_object_lock(obj);
-	LASSERT(sanity_check_nolock(ext) == 0);
-	/* `Kick' this extent only if the caller is waiting for it to be
-	 * written out. */
-	if (state == OES_INV && !ext->oe_urgent && !ext->oe_hp &&
-	    !ext->oe_trunc_pending) {
-		if (ext->oe_state == OES_ACTIVE) {
-			ext->oe_urgent = 1;
-		} else if (ext->oe_state == OES_CACHE) {
-			ext->oe_urgent = 1;
-			osc_extent_hold(ext);
-			rc = 1;
-		}
-	}
-	osc_object_unlock(obj);
-	if (rc == 1)
-		osc_extent_release(env, ext);
-
-	/* wait for the extent until its state becomes @state */
-	rc = l_wait_event(ext->oe_waitq, extent_wait_cb(ext, state), &lwi);
-	if (rc == -ETIMEDOUT) {
-		OSC_EXTENT_DUMP(D_ERROR, ext,
-			"%s: wait ext to %d timedout, recovery in progress?\n",
-			osc_export(obj)->exp_obd->obd_name, state);
-
-		lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
-		rc = l_wait_event(ext->oe_waitq, extent_wait_cb(ext, state),
-				  &lwi);
-	}
-	if (rc == 0 && ext->oe_rc < 0)
-		rc = ext->oe_rc;
-	return rc;
-}
-
-/**
- * Discard pages with index greater than @size. If @ext is overlapped with
- * @size, then partial truncate happens.
- */
-static int osc_extent_truncate(struct osc_extent *ext, pgoff_t trunc_index,
-			       bool partial)
-{
-	struct cl_env_nest nest;
-	struct lu_env *env;
-	struct cl_io *io;
-	struct osc_object *obj = ext->oe_obj;
-	struct client_obd *cli = osc_cli(obj);
-	struct osc_async_page *oap;
-	struct osc_async_page *tmp;
-	int pages_in_chunk = 0;
-	int ppc_bits = cli->cl_chunkbits - PAGE_CACHE_SHIFT;
-	__u64 trunc_chunk = trunc_index >> ppc_bits;
-	int grants = 0;
-	int nr_pages = 0;
-	int rc = 0;
-
-	LASSERT(sanity_check(ext) == 0);
-	EASSERT(ext->oe_state == OES_TRUNC, ext);
-	EASSERT(!ext->oe_urgent, ext);
-
-	/* Request new lu_env.
-	 * We can't use that env from osc_cache_truncate_start() because
-	 * it's from lov_io_sub and not fully initialized. */
-	env = cl_env_nested_get(&nest);
-	io  = &osc_env_info(env)->oti_io;
-	io->ci_obj = cl_object_top(osc2cl(obj));
-	rc = cl_io_init(env, io, CIT_MISC, io->ci_obj);
-	if (rc < 0)
-		goto out;
-
-	/* discard all pages with index greater then trunc_index */
-	list_for_each_entry_safe(oap, tmp, &ext->oe_pages,
-				     oap_pending_item) {
-		struct cl_page *sub = oap2cl_page(oap);
-		struct cl_page *page = cl_page_top(sub);
-
-		LASSERT(list_empty(&oap->oap_rpc_item));
-
-		/* only discard the pages with their index greater than
-		 * trunc_index, and ... */
-		if (sub->cp_index < trunc_index ||
-		    (sub->cp_index == trunc_index && partial)) {
-			/* accounting how many pages remaining in the chunk
-			 * so that we can calculate grants correctly. */
-			if (sub->cp_index >> ppc_bits == trunc_chunk)
-				++pages_in_chunk;
-			continue;
-		}
-
-		list_del_init(&oap->oap_pending_item);
-
-		cl_page_get(page);
-		lu_ref_add(&page->cp_reference, "truncate", current);
-
-		if (cl_page_own(env, io, page) == 0) {
-			cl_page_unmap(env, io, page);
-			cl_page_discard(env, io, page);
-			cl_page_disown(env, io, page);
-		} else {
-			LASSERT(page->cp_state == CPS_FREEING);
-			LASSERT(0);
-		}
-
-		lu_ref_del(&page->cp_reference, "truncate", current);
-		cl_page_put(env, page);
-
-		--ext->oe_nr_pages;
-		++nr_pages;
-	}
-	EASSERTF(ergo(ext->oe_start >= trunc_index + !!partial,
-		      ext->oe_nr_pages == 0),
-		ext, "trunc_index %lu, partial %d\n", trunc_index, partial);
-
-	osc_object_lock(obj);
-	if (ext->oe_nr_pages == 0) {
-		LASSERT(pages_in_chunk == 0);
-		grants = ext->oe_grants;
-		ext->oe_grants = 0;
-	} else { /* calculate how many grants we can free */
-		int chunks = (ext->oe_end >> ppc_bits) - trunc_chunk;
-		pgoff_t last_index;
-
-
-		/* if there is no pages in this chunk, we can also free grants
-		 * for the last chunk */
-		if (pages_in_chunk == 0) {
-			/* if this is the 1st chunk and no pages in this chunk,
-			 * ext->oe_nr_pages must be zero, so we should be in
-			 * the other if-clause. */
-			LASSERT(trunc_chunk > 0);
-			--trunc_chunk;
-			++chunks;
-		}
-
-		/* this is what we can free from this extent */
-		grants = chunks << cli->cl_chunkbits;
-		ext->oe_grants -= grants;
-		last_index = ((trunc_chunk + 1) << ppc_bits) - 1;
-		ext->oe_end = min(last_index, ext->oe_max_end);
-		LASSERT(ext->oe_end >= ext->oe_start);
-		LASSERT(ext->oe_grants > 0);
-	}
-	osc_object_unlock(obj);
-
-	if (grants > 0 || nr_pages > 0)
-		osc_free_grant(cli, nr_pages, grants);
-
-out:
-	cl_io_fini(env, io);
-	cl_env_nested_put(&nest, env);
-	return rc;
-}
-
-/**
- * This function is used to make the extent prepared for transfer.
- * A race with flushing page - ll_writepage() has to be handled cautiously.
- */
-static int osc_extent_make_ready(const struct lu_env *env,
-				 struct osc_extent *ext)
-{
-	struct osc_async_page *oap;
-	struct osc_async_page *last = NULL;
-	struct osc_object *obj = ext->oe_obj;
-	int page_count = 0;
-	int rc;
-
-	/* we're going to grab page lock, so object lock must not be taken. */
-	LASSERT(sanity_check(ext) == 0);
-	/* in locking state, any process should not touch this extent. */
-	EASSERT(ext->oe_state == OES_LOCKING, ext);
-	EASSERT(ext->oe_owner != NULL, ext);
-
-	OSC_EXTENT_DUMP(D_CACHE, ext, "make ready\n");
-
-	list_for_each_entry(oap, &ext->oe_pages, oap_pending_item) {
-		++page_count;
-		if (last == NULL || last->oap_obj_off < oap->oap_obj_off)
-			last = oap;
-
-		/* checking ASYNC_READY is race safe */
-		if ((oap->oap_async_flags & ASYNC_READY) != 0)
-			continue;
-
-		rc = osc_make_ready(env, oap, OBD_BRW_WRITE);
-		switch (rc) {
-		case 0:
-			spin_lock(&oap->oap_lock);
-			oap->oap_async_flags |= ASYNC_READY;
-			spin_unlock(&oap->oap_lock);
-			break;
-		case -EALREADY:
-			LASSERT((oap->oap_async_flags & ASYNC_READY) != 0);
-			break;
-		default:
-			LASSERTF(0, "unknown return code: %d\n", rc);
-		}
-	}
-
-	LASSERT(page_count == ext->oe_nr_pages);
-	LASSERT(last != NULL);
-	/* the last page is the only one we need to refresh its count by
-	 * the size of file. */
-	if (!(last->oap_async_flags & ASYNC_COUNT_STABLE)) {
-		last->oap_count = osc_refresh_count(env, last, OBD_BRW_WRITE);
-		LASSERT(last->oap_count > 0);
-		LASSERT(last->oap_page_off + last->oap_count <= PAGE_CACHE_SIZE);
-		last->oap_async_flags |= ASYNC_COUNT_STABLE;
-	}
-
-	/* for the rest of pages, we don't need to call osf_refresh_count()
-	 * because it's known they are not the last page */
-	list_for_each_entry(oap, &ext->oe_pages, oap_pending_item) {
-		if (!(oap->oap_async_flags & ASYNC_COUNT_STABLE)) {
-			oap->oap_count = PAGE_CACHE_SIZE - oap->oap_page_off;
-			oap->oap_async_flags |= ASYNC_COUNT_STABLE;
-		}
-	}
-
-	osc_object_lock(obj);
-	osc_extent_state_set(ext, OES_RPC);
-	osc_object_unlock(obj);
-	/* get a refcount for RPC. */
-	osc_extent_get(ext);
-
-	return 0;
-}
-
-/**
- * Quick and simple version of osc_extent_find(). This function is frequently
- * called to expand the extent for the same IO. To expand the extent, the
- * page index must be in the same or next chunk of ext->oe_end.
- */
-static int osc_extent_expand(struct osc_extent *ext, pgoff_t index, int *grants)
-{
-	struct osc_object *obj = ext->oe_obj;
-	struct client_obd *cli = osc_cli(obj);
-	struct osc_extent *next;
-	int ppc_bits = cli->cl_chunkbits - PAGE_CACHE_SHIFT;
-	pgoff_t chunk = index >> ppc_bits;
-	pgoff_t end_chunk;
-	pgoff_t end_index;
-	int chunksize = 1 << cli->cl_chunkbits;
-	int rc = 0;
-
-	LASSERT(ext->oe_max_end >= index && ext->oe_start <= index);
-	osc_object_lock(obj);
-	LASSERT(sanity_check_nolock(ext) == 0);
-	end_chunk = ext->oe_end >> ppc_bits;
-	if (chunk > end_chunk + 1) {
-		rc = -ERANGE;
-		goto out;
-	}
-
-	if (end_chunk >= chunk) {
-		rc = 0;
-		goto out;
-	}
-
-	LASSERT(end_chunk + 1 == chunk);
-	/* try to expand this extent to cover @index */
-	end_index = min(ext->oe_max_end, ((chunk + 1) << ppc_bits) - 1);
-
-	next = next_extent(ext);
-	if (next != NULL && next->oe_start <= end_index) {
-		/* complex mode - overlapped with the next extent,
-		 * this case will be handled by osc_extent_find() */
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	ext->oe_end = end_index;
-	ext->oe_grants += chunksize;
-	*grants -= chunksize;
-	LASSERT(*grants >= 0);
-	EASSERTF(osc_extent_is_overlapped(obj, ext) == 0, ext,
-		 "overlapped after expanding for %lu.\n", index);
-
-out:
-	osc_object_unlock(obj);
-	return rc;
-}
-
-static void osc_extent_tree_dump0(int level, struct osc_object *obj,
-				  const char *func, int line)
-{
-	struct osc_extent *ext;
-	int cnt;
-
-	CDEBUG(level, "Dump object %p extents at %s:%d, mppr: %u.\n",
-	       obj, func, line, osc_cli(obj)->cl_max_pages_per_rpc);
-
-	/* osc_object_lock(obj); */
-	cnt = 1;
-	for (ext = first_extent(obj); ext != NULL; ext = next_extent(ext))
-		OSC_EXTENT_DUMP(level, ext, "in tree %d.\n", cnt++);
-
-	cnt = 1;
-	list_for_each_entry(ext, &obj->oo_hp_exts, oe_link)
-		OSC_EXTENT_DUMP(level, ext, "hp %d.\n", cnt++);
-
-	cnt = 1;
-	list_for_each_entry(ext, &obj->oo_urgent_exts, oe_link)
-		OSC_EXTENT_DUMP(level, ext, "urgent %d.\n", cnt++);
-
-	cnt = 1;
-	list_for_each_entry(ext, &obj->oo_reading_exts, oe_link)
-		OSC_EXTENT_DUMP(level, ext, "reading %d.\n", cnt++);
-	/* osc_object_unlock(obj); */
-}
-
-/* ------------------ osc extent end ------------------ */
-
-static inline int osc_is_ready(struct osc_object *osc)
-{
-	return !list_empty(&osc->oo_ready_item) ||
-	       !list_empty(&osc->oo_hp_ready_item);
-}
-
-#define OSC_IO_DEBUG(OSC, STR, args...)					       \
-	CDEBUG(D_CACHE, "obj %p ready %d|%c|%c wr %d|%c|%c rd %d|%c " STR,     \
-	       (OSC), osc_is_ready(OSC),				       \
-	       list_empty_marker(&(OSC)->oo_hp_ready_item),		       \
-	       list_empty_marker(&(OSC)->oo_ready_item),		       \
-	       atomic_read(&(OSC)->oo_nr_writes),			       \
-	       list_empty_marker(&(OSC)->oo_hp_exts),			       \
-	       list_empty_marker(&(OSC)->oo_urgent_exts),		       \
-	       atomic_read(&(OSC)->oo_nr_reads),			       \
-	       list_empty_marker(&(OSC)->oo_reading_exts),		       \
-	       ##args)
-
-static int osc_make_ready(const struct lu_env *env, struct osc_async_page *oap,
-			  int cmd)
-{
-	struct osc_page *opg = oap2osc_page(oap);
-	struct cl_page *page = cl_page_top(oap2cl_page(oap));
-	int result;
-
-	LASSERT(cmd == OBD_BRW_WRITE); /* no cached reads */
-
-	result = cl_page_make_ready(env, page, CRT_WRITE);
-	if (result == 0)
-		opg->ops_submit_time = cfs_time_current();
-	return result;
-}
-
-static int osc_refresh_count(const struct lu_env *env,
-			     struct osc_async_page *oap, int cmd)
-{
-	struct osc_page *opg = oap2osc_page(oap);
-	struct cl_page *page = oap2cl_page(oap);
-	struct cl_object *obj;
-	struct cl_attr *attr = &osc_env_info(env)->oti_attr;
-
-	int result;
-	loff_t kms;
-
-	/* readpage queues with _COUNT_STABLE, shouldn't get here. */
-	LASSERT(!(cmd & OBD_BRW_READ));
-	LASSERT(opg != NULL);
-	obj = opg->ops_cl.cpl_obj;
-
-	cl_object_attr_lock(obj);
-	result = cl_object_attr_get(env, obj, attr);
-	cl_object_attr_unlock(obj);
-	if (result < 0)
-		return result;
-	kms = attr->cat_kms;
-	if (cl_offset(obj, page->cp_index) >= kms)
-		/* catch race with truncate */
-		return 0;
-	else if (cl_offset(obj, page->cp_index + 1) > kms)
-		/* catch sub-page write at end of file */
-		return kms % PAGE_CACHE_SIZE;
-	else
-		return PAGE_CACHE_SIZE;
-}
-
-static int osc_completion(const struct lu_env *env, struct osc_async_page *oap,
-			  int cmd, int rc)
-{
-	struct osc_page *opg = oap2osc_page(oap);
-	struct cl_page *page = cl_page_top(oap2cl_page(oap));
-	struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj);
-	enum cl_req_type crt;
-	int srvlock;
-
-	cmd &= ~OBD_BRW_NOQUOTA;
-	LASSERT(equi(page->cp_state == CPS_PAGEIN,  cmd == OBD_BRW_READ));
-	LASSERT(equi(page->cp_state == CPS_PAGEOUT, cmd == OBD_BRW_WRITE));
-	LASSERT(opg->ops_transfer_pinned);
-
-	/*
-	 * page->cp_req can be NULL if io submission failed before
-	 * cl_req was allocated.
-	 */
-	if (page->cp_req != NULL)
-		cl_req_page_done(env, page);
-	LASSERT(page->cp_req == NULL);
-
-	crt = cmd == OBD_BRW_READ ? CRT_READ : CRT_WRITE;
-	/* Clear opg->ops_transfer_pinned before VM lock is released. */
-	opg->ops_transfer_pinned = 0;
-
-	spin_lock(&obj->oo_seatbelt);
-	LASSERT(opg->ops_submitter != NULL);
-	LASSERT(!list_empty(&opg->ops_inflight));
-	list_del_init(&opg->ops_inflight);
-	opg->ops_submitter = NULL;
-	spin_unlock(&obj->oo_seatbelt);
-
-	opg->ops_submit_time = 0;
-	srvlock = oap->oap_brw_flags & OBD_BRW_SRVLOCK;
-
-	/* statistic */
-	if (rc == 0 && srvlock) {
-		struct lu_device *ld = opg->ops_cl.cpl_obj->co_lu.lo_dev;
-		struct osc_stats *stats = &lu2osc_dev(ld)->od_stats;
-		int bytes = oap->oap_count;
-
-		if (crt == CRT_READ)
-			stats->os_lockless_reads += bytes;
-		else
-			stats->os_lockless_writes += bytes;
-	}
-
-	/*
-	 * This has to be the last operation with the page, as locks are
-	 * released in cl_page_completion() and nothing except for the
-	 * reference counter protects page from concurrent reclaim.
-	 */
-	lu_ref_del(&page->cp_reference, "transfer", page);
-
-	cl_page_completion(env, page, crt, rc);
-
-	return 0;
-}
-
-#define OSC_DUMP_GRANT(cli, fmt, args...) do {				      \
-	struct client_obd *__tmp = (cli);				      \
-	CDEBUG(D_CACHE, "%s: { dirty: %ld/%ld dirty_pages: %d/%d "	      \
-	       "dropped: %ld avail: %ld, reserved: %ld, flight: %d } " fmt,   \
-	       __tmp->cl_import->imp_obd->obd_name,			      \
-	       __tmp->cl_dirty, __tmp->cl_dirty_max,			      \
-	       atomic_read(&obd_dirty_pages), obd_max_dirty_pages,	      \
-	       __tmp->cl_lost_grant, __tmp->cl_avail_grant,		      \
-	       __tmp->cl_reserved_grant, __tmp->cl_w_in_flight, ##args);      \
-} while (0)
-
-/* caller must hold loi_list_lock */
-static void osc_consume_write_grant(struct client_obd *cli,
-				    struct brw_page *pga)
-{
-	assert_spin_locked(&cli->cl_loi_list_lock.lock);
-	LASSERT(!(pga->flag & OBD_BRW_FROM_GRANT));
-	atomic_inc(&obd_dirty_pages);
-	cli->cl_dirty += PAGE_CACHE_SIZE;
-	pga->flag |= OBD_BRW_FROM_GRANT;
-	CDEBUG(D_CACHE, "using %lu grant credits for brw %p page %p\n",
-	       PAGE_CACHE_SIZE, pga, pga->pg);
-	osc_update_next_shrink(cli);
-}
-
-/* the companion to osc_consume_write_grant, called when a brw has completed.
- * must be called with the loi lock held. */
-static void osc_release_write_grant(struct client_obd *cli,
-				    struct brw_page *pga)
-{
-	assert_spin_locked(&cli->cl_loi_list_lock.lock);
-	if (!(pga->flag & OBD_BRW_FROM_GRANT)) {
-		return;
-	}
-
-	pga->flag &= ~OBD_BRW_FROM_GRANT;
-	atomic_dec(&obd_dirty_pages);
-	cli->cl_dirty -= PAGE_CACHE_SIZE;
-	if (pga->flag & OBD_BRW_NOCACHE) {
-		pga->flag &= ~OBD_BRW_NOCACHE;
-		atomic_dec(&obd_dirty_transit_pages);
-		cli->cl_dirty_transit -= PAGE_CACHE_SIZE;
-	}
-}
-
-/**
- * To avoid sleeping with object lock held, it's good for us allocate enough
- * grants before entering into critical section.
- *
- * client_obd_list_lock held by caller
- */
-static int osc_reserve_grant(struct client_obd *cli, unsigned int bytes)
-{
-	int rc = -EDQUOT;
-
-	if (cli->cl_avail_grant >= bytes) {
-		cli->cl_avail_grant -= bytes;
-		cli->cl_reserved_grant += bytes;
-		rc = 0;
-	}
-	return rc;
-}
-
-static void __osc_unreserve_grant(struct client_obd *cli,
-				  unsigned int reserved, unsigned int unused)
-{
-	/* it's quite normal for us to get more grant than reserved.
-	 * Thinking about a case that two extents merged by adding a new
-	 * chunk, we can save one extent tax. If extent tax is greater than
-	 * one chunk, we can save more grant by adding a new chunk */
-	cli->cl_reserved_grant -= reserved;
-	if (unused > reserved) {
-		cli->cl_avail_grant += reserved;
-		cli->cl_lost_grant  += unused - reserved;
-	} else {
-		cli->cl_avail_grant += unused;
-	}
-}
-
-void osc_unreserve_grant(struct client_obd *cli,
-			 unsigned int reserved, unsigned int unused)
-{
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	__osc_unreserve_grant(cli, reserved, unused);
-	if (unused > 0)
-		osc_wake_cache_waiters(cli);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-}
-
-/**
- * Free grant after IO is finished or canceled.
- *
- * @lost_grant is used to remember how many grants we have allocated but not
- * used, we should return these grants to OST. There're two cases where grants
- * can be lost:
- * 1. truncate;
- * 2. blocksize at OST is less than PAGE_CACHE_SIZE and a partial page was
- *    written. In this case OST may use less chunks to serve this partial
- *    write. OSTs don't actually know the page size on the client side. so
- *    clients have to calculate lost grant by the blocksize on the OST.
- *    See filter_grant_check() for details.
- */
-static void osc_free_grant(struct client_obd *cli, unsigned int nr_pages,
-			   unsigned int lost_grant)
-{
-	int grant = (1 << cli->cl_chunkbits) + cli->cl_extent_tax;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	atomic_sub(nr_pages, &obd_dirty_pages);
-	cli->cl_dirty -= nr_pages << PAGE_CACHE_SHIFT;
-	cli->cl_lost_grant += lost_grant;
-	if (cli->cl_avail_grant < grant && cli->cl_lost_grant >= grant) {
-		/* borrow some grant from truncate to avoid the case that
-		 * truncate uses up all avail grant */
-		cli->cl_lost_grant -= grant;
-		cli->cl_avail_grant += grant;
-	}
-	osc_wake_cache_waiters(cli);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	CDEBUG(D_CACHE, "lost %u grant: %lu avail: %lu dirty: %lu\n",
-	       lost_grant, cli->cl_lost_grant,
-	       cli->cl_avail_grant, cli->cl_dirty);
-}
-
-/**
- * The companion to osc_enter_cache(), called when @oap is no longer part of
- * the dirty accounting due to error.
- */
-static void osc_exit_cache(struct client_obd *cli, struct osc_async_page *oap)
-{
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	osc_release_write_grant(cli, &oap->oap_brw_page);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-}
-
-/**
- * Non-blocking version of osc_enter_cache() that consumes grant only when it
- * is available.
- */
-static int osc_enter_cache_try(struct client_obd *cli,
-			       struct osc_async_page *oap,
-			       int bytes, int transient)
-{
-	int rc;
-
-	OSC_DUMP_GRANT(cli, "need:%d.\n", bytes);
-
-	rc = osc_reserve_grant(cli, bytes);
-	if (rc < 0)
-		return 0;
-
-	if (cli->cl_dirty + PAGE_CACHE_SIZE <= cli->cl_dirty_max &&
-	    atomic_read(&obd_dirty_pages) + 1 <= obd_max_dirty_pages) {
-		osc_consume_write_grant(cli, &oap->oap_brw_page);
-		if (transient) {
-			cli->cl_dirty_transit += PAGE_CACHE_SIZE;
-			atomic_inc(&obd_dirty_transit_pages);
-			oap->oap_brw_flags |= OBD_BRW_NOCACHE;
-		}
-		rc = 1;
-	} else {
-		__osc_unreserve_grant(cli, bytes, bytes);
-		rc = 0;
-	}
-	return rc;
-}
-
-static int ocw_granted(struct client_obd *cli, struct osc_cache_waiter *ocw)
-{
-	int rc;
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	rc = list_empty(&ocw->ocw_entry);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	return rc;
-}
-
-/**
- * The main entry to reserve dirty page accounting. Usually the grant reserved
- * in this function will be freed in bulk in osc_free_grant() unless it fails
- * to add osc cache, in that case, it will be freed in osc_exit_cache().
- *
- * The process will be put into sleep if it's already run out of grant.
- */
-static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli,
-			   struct osc_async_page *oap, int bytes)
-{
-	struct osc_object *osc = oap->oap_obj;
-	struct lov_oinfo *loi = osc->oo_oinfo;
-	struct osc_cache_waiter ocw;
-	struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
-	int rc = -EDQUOT;
-
-	OSC_DUMP_GRANT(cli, "need:%d.\n", bytes);
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-
-	/* force the caller to try sync io.  this can jump the list
-	 * of queued writes and create a discontiguous rpc stream */
-	if (OBD_FAIL_CHECK(OBD_FAIL_OSC_NO_GRANT) ||
-	    cli->cl_dirty_max < PAGE_CACHE_SIZE     ||
-	    cli->cl_ar.ar_force_sync || loi->loi_ar.ar_force_sync) {
-		rc = -EDQUOT;
-		goto out;
-	}
-
-	/* Hopefully normal case - cache space and write credits available */
-	if (osc_enter_cache_try(cli, oap, bytes, 0)) {
-		rc = 0;
-		goto out;
-	}
-
-	/* We can get here for two reasons: too many dirty pages in cache, or
-	 * run out of grants. In both cases we should write dirty pages out.
-	 * Adding a cache waiter will trigger urgent write-out no matter what
-	 * RPC size will be.
-	 * The exiting condition is no avail grants and no dirty pages caching,
-	 * that really means there is no space on the OST. */
-	init_waitqueue_head(&ocw.ocw_waitq);
-	ocw.ocw_oap   = oap;
-	ocw.ocw_grant = bytes;
-	while (cli->cl_dirty > 0 || cli->cl_w_in_flight > 0) {
-		list_add_tail(&ocw.ocw_entry, &cli->cl_cache_waiters);
-		ocw.ocw_rc = 0;
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-		osc_io_unplug_async(env, cli, NULL);
-
-		CDEBUG(D_CACHE, "%s: sleeping for cache space @ %p for %p\n",
-		       cli->cl_import->imp_obd->obd_name, &ocw, oap);
-
-		rc = l_wait_event(ocw.ocw_waitq, ocw_granted(cli, &ocw), &lwi);
-
-		client_obd_list_lock(&cli->cl_loi_list_lock);
-
-		/* l_wait_event is interrupted by signal */
-		if (rc < 0) {
-			list_del_init(&ocw.ocw_entry);
-			goto out;
-		}
-
-		LASSERT(list_empty(&ocw.ocw_entry));
-		rc = ocw.ocw_rc;
-
-		if (rc != -EDQUOT)
-			goto out;
-		if (osc_enter_cache_try(cli, oap, bytes, 0)) {
-			rc = 0;
-			goto out;
-		}
-	}
-out:
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-	OSC_DUMP_GRANT(cli, "returned %d.\n", rc);
-	return rc;
-}
-
-/* caller must hold loi_list_lock */
-void osc_wake_cache_waiters(struct client_obd *cli)
-{
-	struct list_head *l, *tmp;
-	struct osc_cache_waiter *ocw;
-
-	list_for_each_safe(l, tmp, &cli->cl_cache_waiters) {
-		ocw = list_entry(l, struct osc_cache_waiter, ocw_entry);
-		list_del_init(&ocw->ocw_entry);
-
-		ocw->ocw_rc = -EDQUOT;
-		/* we can't dirty more */
-		if ((cli->cl_dirty + PAGE_CACHE_SIZE > cli->cl_dirty_max) ||
-		    (atomic_read(&obd_dirty_pages) + 1 >
-		     obd_max_dirty_pages)) {
-			CDEBUG(D_CACHE, "no dirty room: dirty: %ld osc max %ld, sys max %d\n",
-			       cli->cl_dirty,
-			       cli->cl_dirty_max, obd_max_dirty_pages);
-			goto wakeup;
-		}
-
-		ocw->ocw_rc = 0;
-		if (!osc_enter_cache_try(cli, ocw->ocw_oap, ocw->ocw_grant, 0))
-			ocw->ocw_rc = -EDQUOT;
-
-wakeup:
-		CDEBUG(D_CACHE, "wake up %p for oap %p, avail grant %ld, %d\n",
-		       ocw, ocw->ocw_oap, cli->cl_avail_grant, ocw->ocw_rc);
-
-		wake_up(&ocw->ocw_waitq);
-	}
-}
-
-static int osc_max_rpc_in_flight(struct client_obd *cli, struct osc_object *osc)
-{
-	int hprpc = !!list_empty(&osc->oo_hp_exts);
-	return rpcs_in_flight(cli) >= cli->cl_max_rpcs_in_flight + hprpc;
-}
-
-/* This maintains the lists of pending pages to read/write for a given object
- * (lop).  This is used by osc_check_rpcs->osc_next_obj() and osc_list_maint()
- * to quickly find objects that are ready to send an RPC. */
-static int osc_makes_rpc(struct client_obd *cli, struct osc_object *osc,
-			 int cmd)
-{
-	int invalid_import = 0;
-
-	/* if we have an invalid import we want to drain the queued pages
-	 * by forcing them through rpcs that immediately fail and complete
-	 * the pages.  recovery relies on this to empty the queued pages
-	 * before canceling the locks and evicting down the llite pages */
-	if ((cli->cl_import == NULL || cli->cl_import->imp_invalid))
-		invalid_import = 1;
-
-	if (cmd & OBD_BRW_WRITE) {
-		if (atomic_read(&osc->oo_nr_writes) == 0)
-			return 0;
-		if (invalid_import) {
-			CDEBUG(D_CACHE, "invalid import forcing RPC\n");
-			return 1;
-		}
-		if (!list_empty(&osc->oo_hp_exts)) {
-			CDEBUG(D_CACHE, "high prio request forcing RPC\n");
-			return 1;
-		}
-		if (!list_empty(&osc->oo_urgent_exts)) {
-			CDEBUG(D_CACHE, "urgent request forcing RPC\n");
-			return 1;
-		}
-		/* trigger a write rpc stream as long as there are dirtiers
-		 * waiting for space.  as they're waiting, they're not going to
-		 * create more pages to coalesce with what's waiting.. */
-		if (!list_empty(&cli->cl_cache_waiters)) {
-			CDEBUG(D_CACHE, "cache waiters forcing RPC\n");
-			return 1;
-		}
-		if (atomic_read(&osc->oo_nr_writes) >=
-		    cli->cl_max_pages_per_rpc)
-			return 1;
-	} else {
-		if (atomic_read(&osc->oo_nr_reads) == 0)
-			return 0;
-		if (invalid_import) {
-			CDEBUG(D_CACHE, "invalid import forcing RPC\n");
-			return 1;
-		}
-		/* all read are urgent. */
-		if (!list_empty(&osc->oo_reading_exts))
-			return 1;
-	}
-
-	return 0;
-}
-
-static void osc_update_pending(struct osc_object *obj, int cmd, int delta)
-{
-	struct client_obd *cli = osc_cli(obj);
-	if (cmd & OBD_BRW_WRITE) {
-		atomic_add(delta, &obj->oo_nr_writes);
-		atomic_add(delta, &cli->cl_pending_w_pages);
-		LASSERT(atomic_read(&obj->oo_nr_writes) >= 0);
-	} else {
-		atomic_add(delta, &obj->oo_nr_reads);
-		atomic_add(delta, &cli->cl_pending_r_pages);
-		LASSERT(atomic_read(&obj->oo_nr_reads) >= 0);
-	}
-	OSC_IO_DEBUG(obj, "update pending cmd %d delta %d.\n", cmd, delta);
-}
-
-static int osc_makes_hprpc(struct osc_object *obj)
-{
-	return !list_empty(&obj->oo_hp_exts);
-}
-
-static void on_list(struct list_head *item, struct list_head *list, int should_be_on)
-{
-	if (list_empty(item) && should_be_on)
-		list_add_tail(item, list);
-	else if (!list_empty(item) && !should_be_on)
-		list_del_init(item);
-}
-
-/* maintain the osc's cli list membership invariants so that osc_send_oap_rpc
- * can find pages to build into rpcs quickly */
-static int __osc_list_maint(struct client_obd *cli, struct osc_object *osc)
-{
-	if (osc_makes_hprpc(osc)) {
-		/* HP rpc */
-		on_list(&osc->oo_ready_item, &cli->cl_loi_ready_list, 0);
-		on_list(&osc->oo_hp_ready_item, &cli->cl_loi_hp_ready_list, 1);
-	} else {
-		on_list(&osc->oo_hp_ready_item, &cli->cl_loi_hp_ready_list, 0);
-		on_list(&osc->oo_ready_item, &cli->cl_loi_ready_list,
-			osc_makes_rpc(cli, osc, OBD_BRW_WRITE) ||
-			osc_makes_rpc(cli, osc, OBD_BRW_READ));
-	}
-
-	on_list(&osc->oo_write_item, &cli->cl_loi_write_list,
-		atomic_read(&osc->oo_nr_writes) > 0);
-
-	on_list(&osc->oo_read_item, &cli->cl_loi_read_list,
-		atomic_read(&osc->oo_nr_reads) > 0);
-
-	return osc_is_ready(osc);
-}
-
-static int osc_list_maint(struct client_obd *cli, struct osc_object *osc)
-{
-	int is_ready;
-
-	client_obd_list_lock(&cli->cl_loi_list_lock);
-	is_ready = __osc_list_maint(cli, osc);
-	client_obd_list_unlock(&cli->cl_loi_list_lock);
-
-	return is_ready;
-}
-
-/* this is trying to propagate async writeback errors back up to the
- * application.  As an async write fails we record the error code for later if
- * the app does an fsync.  As long as errors persist we force future rpcs to be
- * sync so that the app can get a sync error and break the cycle of queueing
- * pages for which writeback will fail. */
-static void osc_process_ar(struct osc_async_rc *ar, __u64 xid,
-			   int rc)
-{
-	if (rc) {
-		if (!ar->ar_rc)
-			ar->ar_rc = rc;
-
-		ar->ar_force_sync = 1;
-		ar->ar_min_xid = ptlrpc_sample_next_xid();
-		return;
-
-	}
-
-	if (ar->ar_force_sync && (xid >= ar->ar_min_xid))
-		ar->ar_force_sync = 0;
-}
-
-
-/* this must be called holding the loi list lock to give coverage to exit_cache,
- * async_flag maintenance, and oap_request */
-static void osc_ap_completion(const struct lu_env *env, struct client_obd *cli,
-			      struct osc_async_page *oap, int sent, int rc)
-{
-	struct osc_object *osc = oap->oap_obj;
-	struct lov_oinfo *loi = osc->oo_oinfo;
-	__u64 xid = 0;
-
-	if (oap->oap_request != NULL) {
-		xid = ptlrpc_req_xid(oap->oap_request);
-		ptlrpc_req_finished(oap->oap_request);
-		oap->oap_request = NULL;
-	}
-
-	/* As the transfer for this page is being done, clear the flags */
-	spin_lock(&oap->oap_lock);
-	oap->oap_async_flags = 0;
-	spin_unlock(&oap->oap_lock);
-	oap->oap_interrupted = 0;
-
-	if (oap->oap_cmd & OBD_BRW_WRITE && xid > 0) {
-		client_obd_list_lock(&cli->cl_loi_list_lock);
-		osc_process_ar(&cli->cl_ar, xid, rc);
-		osc_process_ar(&loi->loi_ar, xid, rc);
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-	}
-
-	rc = osc_completion(env, oap, oap->oap_cmd, rc);
-	if (rc)
-		CERROR("completion on oap %p obj %p returns %d.\n",
-		       oap, osc, rc);
-}
-
-/**
- * Try to add extent to one RPC. We need to think about the following things:
- * - # of pages must not be over max_pages_per_rpc
- * - extent must be compatible with previous ones
- */
-static int try_to_add_extent_for_io(struct client_obd *cli,
-				    struct osc_extent *ext, struct list_head *rpclist,
-				    int *pc, unsigned int *max_pages)
-{
-	struct osc_extent *tmp;
-	struct osc_async_page *oap = list_first_entry(&ext->oe_pages,
-						      struct osc_async_page,
-						      oap_pending_item);
-
-	EASSERT((ext->oe_state == OES_CACHE || ext->oe_state == OES_LOCK_DONE),
-		ext);
-
-	*max_pages = max(ext->oe_mppr, *max_pages);
-	if (*pc + ext->oe_nr_pages > *max_pages)
-		return 0;
-
-	list_for_each_entry(tmp, rpclist, oe_link) {
-		struct osc_async_page *oap2;
-
-		oap2 = list_first_entry(&tmp->oe_pages, struct osc_async_page,
-					oap_pending_item);
-		EASSERT(tmp->oe_owner == current, tmp);
-		if (oap2cl_page(oap)->cp_type != oap2cl_page(oap2)->cp_type) {
-			CDEBUG(D_CACHE, "Do not permit different type of IO"
-					" for a same RPC\n");
-			return 0;
-		}
-
-		if (tmp->oe_srvlock != ext->oe_srvlock ||
-		    !tmp->oe_grants != !ext->oe_grants)
-			return 0;
-
-		/* remove break for strict check */
-		break;
-	}
-
-	*pc += ext->oe_nr_pages;
-	list_move_tail(&ext->oe_link, rpclist);
-	ext->oe_owner = current;
-	return 1;
-}
-
-/**
- * In order to prevent multiple ptlrpcd from breaking contiguous extents,
- * get_write_extent() takes all appropriate extents in atomic.
- *
- * The following policy is used to collect extents for IO:
- * 1. Add as many HP extents as possible;
- * 2. Add the first urgent extent in urgent extent list and take it out of
- *    urgent list;
- * 3. Add subsequent extents of this urgent extent;
- * 4. If urgent list is not empty, goto 2;
- * 5. Traverse the extent tree from the 1st extent;
- * 6. Above steps exit if there is no space in this RPC.
- */
-static int get_write_extents(struct osc_object *obj, struct list_head *rpclist)
-{
-	struct client_obd *cli = osc_cli(obj);
-	struct osc_extent *ext;
-	int page_count = 0;
-	unsigned int max_pages = cli->cl_max_pages_per_rpc;
-
-	LASSERT(osc_object_is_locked(obj));
-	while (!list_empty(&obj->oo_hp_exts)) {
-		ext = list_entry(obj->oo_hp_exts.next, struct osc_extent,
-				     oe_link);
-		LASSERT(ext->oe_state == OES_CACHE);
-		if (!try_to_add_extent_for_io(cli, ext, rpclist, &page_count,
-					      &max_pages))
-			return page_count;
-		EASSERT(ext->oe_nr_pages <= max_pages, ext);
-	}
-	if (page_count == max_pages)
-		return page_count;
-
-	while (!list_empty(&obj->oo_urgent_exts)) {
-		ext = list_entry(obj->oo_urgent_exts.next,
-				     struct osc_extent, oe_link);
-		if (!try_to_add_extent_for_io(cli, ext, rpclist, &page_count,
-					      &max_pages))
-			return page_count;
-
-		if (!ext->oe_intree)
-			continue;
-
-		while ((ext = next_extent(ext)) != NULL) {
-			if ((ext->oe_state != OES_CACHE) ||
-			    (!list_empty(&ext->oe_link) &&
-			     ext->oe_owner != NULL))
-				continue;
-
-			if (!try_to_add_extent_for_io(cli, ext, rpclist,
-						      &page_count, &max_pages))
-				return page_count;
-		}
-	}
-	if (page_count == max_pages)
-		return page_count;
-
-	ext = first_extent(obj);
-	while (ext != NULL) {
-		if ((ext->oe_state != OES_CACHE) ||
-		    /* this extent may be already in current rpclist */
-		    (!list_empty(&ext->oe_link) && ext->oe_owner != NULL)) {
-			ext = next_extent(ext);
-			continue;
-		}
-
-		if (!try_to_add_extent_for_io(cli, ext, rpclist, &page_count,
-					      &max_pages))
-			return page_count;
-
-		ext = next_extent(ext);
-	}
-	return page_count;
-}
-
-static int
-osc_send_write_rpc(const struct lu_env *env, struct client_obd *cli,
-		   struct osc_object *osc, pdl_policy_t pol)
-{
-	LIST_HEAD(rpclist);
-	struct osc_extent *ext;
-	struct osc_extent *tmp;
-	struct osc_extent *first = NULL;
-	u32 page_count = 0;
-	int srvlock = 0;
-	int rc = 0;
-
-	LASSERT(osc_object_is_locked(osc));
-
-	page_count = get_write_extents(osc, &rpclist);
-	LASSERT(equi(page_count == 0, list_empty(&rpclist)));
-
-	if (list_empty(&rpclist))
-		return 0;
-
-	osc_update_pending(osc, OBD_BRW_WRITE, -page_count);
-
-	list_for_each_entry(ext, &rpclist, oe_link) {
-		LASSERT(ext->oe_state == OES_CACHE ||
-			ext->oe_state == OES_LOCK_DONE);
-		if (ext->oe_state == OES_CACHE)
-			osc_extent_state_set(ext, OES_LOCKING);
-		else
-			osc_extent_state_set(ext, OES_RPC);
-	}
-
-	/* we're going to grab page lock, so release object lock because
-	 * lock order is page lock -> object lock. */
-	osc_object_unlock(osc);
-
-	list_for_each_entry_safe(ext, tmp, &rpclist, oe_link) {
-		if (ext->oe_state == OES_LOCKING) {
-			rc = osc_extent_make_ready(env, ext);
-			if (unlikely(rc < 0)) {
-				list_del_init(&ext->oe_link);
-				osc_extent_finish(env, ext, 0, rc);
-				continue;
-			}
-		}
-		if (first == NULL) {
-			first = ext;
-			srvlock = ext->oe_srvlock;
-		} else {
-			LASSERT(srvlock == ext->oe_srvlock);
-		}
-	}
-
-	if (!list_empty(&rpclist)) {
-		LASSERT(page_count > 0);
-		rc = osc_build_rpc(env, cli, &rpclist, OBD_BRW_WRITE, pol);
-		LASSERT(list_empty(&rpclist));
-	}
-
-	osc_object_lock(osc);
-	return rc;
-}
-
-/**
- * prepare pages for ASYNC io and put pages in send queue.
- *
- * \param cmd OBD_BRW_* macroses
- * \param lop pending pages
- *
- * \return zero if no page added to send queue.
- * \return 1 if pages successfully added to send queue.
- * \return negative on errors.
- */
-static int
-osc_send_read_rpc(const struct lu_env *env, struct client_obd *cli,
-		  struct osc_object *osc, pdl_policy_t pol)
-{
-	struct osc_extent *ext;
-	struct osc_extent *next;
-	LIST_HEAD(rpclist);
-	int page_count = 0;
-	unsigned int max_pages = cli->cl_max_pages_per_rpc;
-	int rc = 0;
-
-	LASSERT(osc_object_is_locked(osc));
-	list_for_each_entry_safe(ext, next,
-				     &osc->oo_reading_exts, oe_link) {
-		EASSERT(ext->oe_state == OES_LOCK_DONE, ext);
-		if (!try_to_add_extent_for_io(cli, ext, &rpclist, &page_count,
-					      &max_pages))
-			break;
-		osc_extent_state_set(ext, OES_RPC);
-		EASSERT(ext->oe_nr_pages <= max_pages, ext);
-	}
-	LASSERT(page_count <= max_pages);
-
-	osc_update_pending(osc, OBD_BRW_READ, -page_count);
-
-	if (!list_empty(&rpclist)) {
-		osc_object_unlock(osc);
-
-		LASSERT(page_count > 0);
-		rc = osc_build_rpc(env, cli, &rpclist, OBD_BRW_READ, pol);
-		LASSERT(list_empty(&rpclist));
-
-		osc_object_lock(osc);
-	}
-	return rc;
-}
-
-#define list_to_obj(list, item) ({					      \
-	struct list_head *__tmp = (list)->next;				      \
-	list_del_init(__tmp);						      \
-	list_entry(__tmp, struct osc_object, oo_##item);		      \
-})
-
-/* This is called by osc_check_rpcs() to find which objects have pages that
- * we could be sending.  These lists are maintained by osc_makes_rpc(). */
-static struct osc_object *osc_next_obj(struct client_obd *cli)
-{
-	/* First return objects that have blocked locks so that they
-	 * will be flushed quickly and other clients can get the lock,
-	 * then objects which have pages ready to be stuffed into RPCs */
-	if (!list_empty(&cli->cl_loi_hp_ready_list))
-		return list_to_obj(&cli->cl_loi_hp_ready_list, hp_ready_item);
-	if (!list_empty(&cli->cl_loi_ready_list))
-		return list_to_obj(&cli->cl_loi_ready_list, ready_item);
-
-	/* then if we have cache waiters, return all objects with queued
-	 * writes.  This is especially important when many small files
-	 * have filled up the cache and not been fired into rpcs because
-	 * they don't pass the nr_pending/object threshold */
-	if (!list_empty(&cli->cl_cache_waiters) &&
-	    !list_empty(&cli->cl_loi_write_list))
-		return list_to_obj(&cli->cl_loi_write_list, write_item);
-
-	/* then return all queued objects when we have an invalid import
-	 * so that they get flushed */
-	if (cli->cl_import == NULL || cli->cl_import->imp_invalid) {
-		if (!list_empty(&cli->cl_loi_write_list))
-			return list_to_obj(&cli->cl_loi_write_list, write_item);
-		if (!list_empty(&cli->cl_loi_read_list))
-			return list_to_obj(&cli->cl_loi_read_list, read_item);
-	}
-	return NULL;
-}
-
-/* called with the loi list lock held */
-static void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli,
-			   pdl_policy_t pol)
-{
-	struct osc_object *osc;
-	int rc = 0;
-
-	while ((osc = osc_next_obj(cli)) != NULL) {
-		struct cl_object *obj = osc2cl(osc);
-		struct lu_ref_link link;
-
-		OSC_IO_DEBUG(osc, "%lu in flight\n", rpcs_in_flight(cli));
-
-		if (osc_max_rpc_in_flight(cli, osc)) {
-			__osc_list_maint(cli, osc);
-			break;
-		}
-
-		cl_object_get(obj);
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-		lu_object_ref_add_at(&obj->co_lu, &link, "check",
-				     current);
-
-		/* attempt some read/write balancing by alternating between
-		 * reads and writes in an object.  The makes_rpc checks here
-		 * would be redundant if we were getting read/write work items
-		 * instead of objects.  we don't want send_oap_rpc to drain a
-		 * partial read pending queue when we're given this object to
-		 * do io on writes while there are cache waiters */
-		osc_object_lock(osc);
-		if (osc_makes_rpc(cli, osc, OBD_BRW_WRITE)) {
-			rc = osc_send_write_rpc(env, cli, osc, pol);
-			if (rc < 0) {
-				CERROR("Write request failed with %d\n", rc);
-
-				/* osc_send_write_rpc failed, mostly because of
-				 * memory pressure.
-				 *
-				 * It can't break here, because if:
-				 *  - a page was submitted by osc_io_submit, so
-				 *    page locked;
-				 *  - no request in flight
-				 *  - no subsequent request
-				 * The system will be in live-lock state,
-				 * because there is no chance to call
-				 * osc_io_unplug() and osc_check_rpcs() any
-				 * more. pdflush can't help in this case,
-				 * because it might be blocked at grabbing
-				 * the page lock as we mentioned.
-				 *
-				 * Anyway, continue to drain pages. */
-				/* break; */
-			}
-		}
-		if (osc_makes_rpc(cli, osc, OBD_BRW_READ)) {
-			rc = osc_send_read_rpc(env, cli, osc, pol);
-			if (rc < 0)
-				CERROR("Read request failed with %d\n", rc);
-		}
-		osc_object_unlock(osc);
-
-		osc_list_maint(cli, osc);
-		lu_object_ref_del_at(&obj->co_lu, &link, "check",
-				     current);
-		cl_object_put(env, obj);
-
-		client_obd_list_lock(&cli->cl_loi_list_lock);
-	}
-}
-
-static int osc_io_unplug0(const struct lu_env *env, struct client_obd *cli,
-			  struct osc_object *osc, pdl_policy_t pol, int async)
-{
-	int rc = 0;
-
-	if (osc != NULL && osc_list_maint(cli, osc) == 0)
-		return 0;
-
-	if (!async) {
-		/* disable osc_lru_shrink() temporarily to avoid
-		 * potential stack overrun problem. LU-2859 */
-		atomic_inc(&cli->cl_lru_shrinkers);
-		client_obd_list_lock(&cli->cl_loi_list_lock);
-		osc_check_rpcs(env, cli, pol);
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-		atomic_dec(&cli->cl_lru_shrinkers);
-	} else {
-		CDEBUG(D_CACHE, "Queue writeback work for client %p.\n", cli);
-		LASSERT(cli->cl_writeback_work != NULL);
-		rc = ptlrpcd_queue_work(cli->cl_writeback_work);
-	}
-	return rc;
-}
-
-static int osc_io_unplug_async(const struct lu_env *env,
-			       struct client_obd *cli, struct osc_object *osc)
-{
-	/* XXX: policy is no use actually. */
-	return osc_io_unplug0(env, cli, osc, PDL_POLICY_ROUND, 1);
-}
-
-void osc_io_unplug(const struct lu_env *env, struct client_obd *cli,
-		   struct osc_object *osc, pdl_policy_t pol)
-{
-	(void)osc_io_unplug0(env, cli, osc, pol, 0);
-}
-
-int osc_prep_async_page(struct osc_object *osc, struct osc_page *ops,
-			struct page *page, loff_t offset)
-{
-	struct obd_export *exp = osc_export(osc);
-	struct osc_async_page *oap = &ops->ops_oap;
-
-	if (!page)
-		return cfs_size_round(sizeof(*oap));
-
-	oap->oap_magic = OAP_MAGIC;
-	oap->oap_cli = &exp->exp_obd->u.cli;
-	oap->oap_obj = osc;
-
-	oap->oap_page = page;
-	oap->oap_obj_off = offset;
-	LASSERT(!(offset & ~CFS_PAGE_MASK));
-
-	if (!client_is_remote(exp) && capable(CFS_CAP_SYS_RESOURCE))
-		oap->oap_brw_flags = OBD_BRW_NOQUOTA;
-
-	INIT_LIST_HEAD(&oap->oap_pending_item);
-	INIT_LIST_HEAD(&oap->oap_rpc_item);
-
-	spin_lock_init(&oap->oap_lock);
-	CDEBUG(D_INFO, "oap %p page %p obj off %llu\n",
-	       oap, page, oap->oap_obj_off);
-	return 0;
-}
-
-int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
-		       struct osc_page *ops)
-{
-	struct osc_io *oio = osc_env_io(env);
-	struct osc_extent *ext = NULL;
-	struct osc_async_page *oap = &ops->ops_oap;
-	struct client_obd *cli = oap->oap_cli;
-	struct osc_object *osc = oap->oap_obj;
-	pgoff_t index;
-	int grants = 0;
-	int brw_flags = OBD_BRW_ASYNC;
-	int cmd = OBD_BRW_WRITE;
-	int need_release = 0;
-	int rc = 0;
-
-	if (oap->oap_magic != OAP_MAGIC)
-		return -EINVAL;
-
-	if (cli->cl_import == NULL || cli->cl_import->imp_invalid)
-		return -EIO;
-
-	if (!list_empty(&oap->oap_pending_item) ||
-	    !list_empty(&oap->oap_rpc_item))
-		return -EBUSY;
-
-	/* Set the OBD_BRW_SRVLOCK before the page is queued. */
-	brw_flags |= ops->ops_srvlock ? OBD_BRW_SRVLOCK : 0;
-	if (!client_is_remote(osc_export(osc)) &&
-	    capable(CFS_CAP_SYS_RESOURCE)) {
-		brw_flags |= OBD_BRW_NOQUOTA;
-		cmd |= OBD_BRW_NOQUOTA;
-	}
-
-	/* check if the file's owner/group is over quota */
-	if (!(cmd & OBD_BRW_NOQUOTA)) {
-		struct cl_object *obj;
-		struct cl_attr *attr;
-		unsigned int qid[MAXQUOTAS];
-
-		obj = cl_object_top(&osc->oo_cl);
-		attr = &osc_env_info(env)->oti_attr;
-
-		cl_object_attr_lock(obj);
-		rc = cl_object_attr_get(env, obj, attr);
-		cl_object_attr_unlock(obj);
-
-		qid[USRQUOTA] = attr->cat_uid;
-		qid[GRPQUOTA] = attr->cat_gid;
-		if (rc == 0 && osc_quota_chkdq(cli, qid) == NO_QUOTA)
-			rc = -EDQUOT;
-		if (rc)
-			return rc;
-	}
-
-	oap->oap_cmd = cmd;
-	oap->oap_page_off = ops->ops_from;
-	oap->oap_count = ops->ops_to - ops->ops_from;
-	oap->oap_async_flags = 0;
-	oap->oap_brw_flags = brw_flags;
-
-	OSC_IO_DEBUG(osc, "oap %p page %p added for cmd %d\n",
-		     oap, oap->oap_page, oap->oap_cmd & OBD_BRW_RWMASK);
-
-	index = oap2cl_page(oap)->cp_index;
-
-	/* Add this page into extent by the following steps:
-	 * 1. if there exists an active extent for this IO, mostly this page
-	 *    can be added to the active extent and sometimes we need to
-	 *    expand extent to accommodate this page;
-	 * 2. otherwise, a new extent will be allocated. */
-
-	ext = oio->oi_active;
-	if (ext != NULL && ext->oe_start <= index && ext->oe_max_end >= index) {
-		/* one chunk plus extent overhead must be enough to write this
-		 * page */
-		grants = (1 << cli->cl_chunkbits) + cli->cl_extent_tax;
-		if (ext->oe_end >= index)
-			grants = 0;
-
-		/* it doesn't need any grant to dirty this page */
-		client_obd_list_lock(&cli->cl_loi_list_lock);
-		rc = osc_enter_cache_try(cli, oap, grants, 0);
-		client_obd_list_unlock(&cli->cl_loi_list_lock);
-		if (rc == 0) { /* try failed */
-			grants = 0;
-			need_release = 1;
-		} else if (ext->oe_end < index) {
-			int tmp = grants;
-			/* try to expand this extent */
-			rc = osc_extent_expand(ext, index, &tmp);
-			if (rc < 0) {
-				need_release = 1;
-				/* don't free reserved grant */
-			} else {
-				OSC_EXTENT_DUMP(D_CACHE, ext,
-						"expanded for %lu.\n", index);
-				osc_unreserve_grant(cli, grants, tmp);
-				grants = 0;
-			}
-		}
-		rc = 0;
-	} else if (ext != NULL) {
-		/* index is located outside of active extent */
-		need_release = 1;
-	}
-	if (need_release) {
-		osc_extent_release(env, ext);
-		oio->oi_active = NULL;
-		ext = NULL;
-	}
-
-	if (ext == NULL) {
-		int tmp = (1 << cli->cl_chunkbits) + cli->cl_extent_tax;
-
-		/* try to find new extent to cover this page */
-		LASSERT(oio->oi_active == NULL);
-		/* we may have allocated grant for this page if we failed
-		 * to expand the previous active extent. */
-		LASSERT(ergo(grants > 0, grants >= tmp));
-
-		rc = 0;
-		if (grants == 0) {
-			/* we haven't allocated grant for this page. */
-			rc = osc_enter_cache(env, cli, oap, tmp);
-			if (rc == 0)
-				grants = tmp;
-		}
-
-		tmp = grants;
-		if (rc == 0) {
-			ext = osc_extent_find(env, osc, index, &tmp);
-			if (IS_ERR(ext)) {
-				LASSERT(tmp == grants);
-				osc_exit_cache(cli, oap);
-				rc = PTR_ERR(ext);
-				ext = NULL;
-			} else {
-				oio->oi_active = ext;
-			}
-		}
-		if (grants > 0)
-			osc_unreserve_grant(cli, grants, tmp);
-	}
-
-	LASSERT(ergo(rc == 0, ext != NULL));
-	if (ext != NULL) {
-		EASSERTF(ext->oe_end >= index && ext->oe_start <= index,
-			 ext, "index = %lu.\n", index);
-		LASSERT((oap->oap_brw_flags & OBD_BRW_FROM_GRANT) != 0);
-
-		osc_object_lock(osc);
-		if (ext->oe_nr_pages == 0)
-			ext->oe_srvlock = ops->ops_srvlock;
-		else
-			LASSERT(ext->oe_srvlock == ops->ops_srvlock);
-		++ext->oe_nr_pages;
-		list_add_tail(&oap->oap_pending_item, &ext->oe_pages);
-		osc_object_unlock(osc);
-	}
-	return rc;
-}
-
-int osc_teardown_async_page(const struct lu_env *env,
-			    struct osc_object *obj, struct osc_page *ops)
-{
-	struct osc_async_page *oap = &ops->ops_oap;
-	struct osc_extent *ext = NULL;
-	int rc = 0;
-
-	LASSERT(oap->oap_magic == OAP_MAGIC);
-
-	CDEBUG(D_INFO, "teardown oap %p page %p at index %lu.\n",
-	       oap, ops, oap2cl_page(oap)->cp_index);
-
-	osc_object_lock(obj);
-	if (!list_empty(&oap->oap_rpc_item)) {
-		CDEBUG(D_CACHE, "oap %p is not in cache.\n", oap);
-		rc = -EBUSY;
-	} else if (!list_empty(&oap->oap_pending_item)) {
-		ext = osc_extent_lookup(obj, oap2cl_page(oap)->cp_index);
-		/* only truncated pages are allowed to be taken out.
-		 * See osc_extent_truncate() and osc_cache_truncate_start()
-		 * for details. */
-		if (ext != NULL && ext->oe_state != OES_TRUNC) {
-			OSC_EXTENT_DUMP(D_ERROR, ext, "trunc at %lu.\n",
-					oap2cl_page(oap)->cp_index);
-			rc = -EBUSY;
-		}
-	}
-	osc_object_unlock(obj);
-	if (ext != NULL)
-		osc_extent_put(env, ext);
-	return rc;
-}
-
-/**
- * This is called when a page is picked up by kernel to write out.
- *
- * We should find out the corresponding extent and add the whole extent
- * into urgent list. The extent may be being truncated or used, handle it
- * carefully.
- */
-int osc_flush_async_page(const struct lu_env *env, struct cl_io *io,
-			 struct osc_page *ops)
-{
-	struct osc_extent *ext = NULL;
-	struct osc_object *obj = cl2osc(ops->ops_cl.cpl_obj);
-	struct cl_page *cp = ops->ops_cl.cpl_page;
-	pgoff_t	index = cp->cp_index;
-	struct osc_async_page *oap = &ops->ops_oap;
-	bool unplug = false;
-	int rc = 0;
-
-	osc_object_lock(obj);
-	ext = osc_extent_lookup(obj, index);
-	if (ext == NULL) {
-		osc_extent_tree_dump(D_ERROR, obj);
-		LASSERTF(0, "page index %lu is NOT covered.\n", index);
-	}
-
-	switch (ext->oe_state) {
-	case OES_RPC:
-	case OES_LOCK_DONE:
-		CL_PAGE_DEBUG(D_ERROR, env, cl_page_top(cp),
-			      "flush an in-rpc page?\n");
-		LASSERT(0);
-		break;
-	case OES_LOCKING:
-		/* If we know this extent is being written out, we should abort
-		 * so that the writer can make this page ready. Otherwise, there
-		 * exists a deadlock problem because other process can wait for
-		 * page writeback bit holding page lock; and meanwhile in
-		 * vvp_page_make_ready(), we need to grab page lock before
-		 * really sending the RPC. */
-	case OES_TRUNC:
-		/* race with truncate, page will be redirtied */
-	case OES_ACTIVE:
-		/* The extent is active so we need to abort and let the caller
-		 * re-dirty the page. If we continued on here, and we were the
-		 * one making the extent active, we could deadlock waiting for
-		 * the page writeback to clear but it won't because the extent
-		 * is active and won't be written out. */
-		rc = -EAGAIN;
-		goto out;
-	default:
-		break;
-	}
-
-	rc = cl_page_prep(env, io, cl_page_top(cp), CRT_WRITE);
-	if (rc)
-		goto out;
-
-	spin_lock(&oap->oap_lock);
-	oap->oap_async_flags |= ASYNC_READY|ASYNC_URGENT;
-	spin_unlock(&oap->oap_lock);
-
-	if (memory_pressure_get())
-		ext->oe_memalloc = 1;
-
-	ext->oe_urgent = 1;
-	if (ext->oe_state == OES_CACHE) {
-		OSC_EXTENT_DUMP(D_CACHE, ext,
-				"flush page %p make it urgent.\n", oap);
-		if (list_empty(&ext->oe_link))
-			list_add_tail(&ext->oe_link, &obj->oo_urgent_exts);
-		unplug = true;
-	}
-	rc = 0;
-
-out:
-	osc_object_unlock(obj);
-	osc_extent_put(env, ext);
-	if (unplug)
-		osc_io_unplug_async(env, osc_cli(obj), obj);
-	return rc;
-}
-
-/**
- * this is called when a sync waiter receives an interruption.  Its job is to
- * get the caller woken as soon as possible.  If its page hasn't been put in an
- * rpc yet it can dequeue immediately.  Otherwise it has to mark the rpc as
- * desiring interruption which will forcefully complete the rpc once the rpc
- * has timed out.
- */
-int osc_cancel_async_page(const struct lu_env *env, struct osc_page *ops)
-{
-	struct osc_async_page *oap = &ops->ops_oap;
-	struct osc_object *obj = oap->oap_obj;
-	struct client_obd *cli = osc_cli(obj);
-	struct osc_extent *ext;
-	struct osc_extent *found = NULL;
-	struct list_head *plist;
-	pgoff_t index = oap2cl_page(oap)->cp_index;
-	int rc = -EBUSY;
-	int cmd;
-
-	LASSERT(!oap->oap_interrupted);
-	oap->oap_interrupted = 1;
-
-	/* Find out the caching extent */
-	osc_object_lock(obj);
-	if (oap->oap_cmd & OBD_BRW_WRITE) {
-		plist = &obj->oo_urgent_exts;
-		cmd = OBD_BRW_WRITE;
-	} else {
-		plist = &obj->oo_reading_exts;
-		cmd = OBD_BRW_READ;
-	}
-	list_for_each_entry(ext, plist, oe_link) {
-		if (ext->oe_start <= index && ext->oe_end >= index) {
-			LASSERT(ext->oe_state == OES_LOCK_DONE);
-			/* For OES_LOCK_DONE state extent, it has already held
-			 * a refcount for RPC. */
-			found = osc_extent_get(ext);
-			break;
-		}
-	}
-	if (found != NULL) {
-		list_del_init(&found->oe_link);
-		osc_update_pending(obj, cmd, -found->oe_nr_pages);
-		osc_object_unlock(obj);
-
-		osc_extent_finish(env, found, 0, -EINTR);
-		osc_extent_put(env, found);
-		rc = 0;
-	} else {
-		osc_object_unlock(obj);
-		/* ok, it's been put in an rpc. only one oap gets a request
-		 * reference */
-		if (oap->oap_request != NULL) {
-			ptlrpc_mark_interrupted(oap->oap_request);
-			ptlrpcd_wake(oap->oap_request);
-			ptlrpc_req_finished(oap->oap_request);
-			oap->oap_request = NULL;
-		}
-	}
-
-	osc_list_maint(cli, obj);
-	return rc;
-}
-
-int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj,
-			 struct list_head *list, int cmd, int brw_flags)
-{
-	struct client_obd *cli = osc_cli(obj);
-	struct osc_extent *ext;
-	struct osc_async_page *oap, *tmp;
-	int page_count = 0;
-	int mppr = cli->cl_max_pages_per_rpc;
-	pgoff_t start = CL_PAGE_EOF;
-	pgoff_t end = 0;
-
-	list_for_each_entry(oap, list, oap_pending_item) {
-		struct cl_page *cp = oap2cl_page(oap);
-		if (cp->cp_index > end)
-			end = cp->cp_index;
-		if (cp->cp_index < start)
-			start = cp->cp_index;
-		++page_count;
-		mppr <<= (page_count > mppr);
-	}
-
-	ext = osc_extent_alloc(obj);
-	if (ext == NULL) {
-		list_for_each_entry_safe(oap, tmp, list, oap_pending_item) {
-			list_del_init(&oap->oap_pending_item);
-			osc_ap_completion(env, cli, oap, 0, -ENOMEM);
-		}
-		return -ENOMEM;
-	}
-
-	ext->oe_rw = !!(cmd & OBD_BRW_READ);
-	ext->oe_urgent = 1;
-	ext->oe_start = start;
-	ext->oe_end = ext->oe_max_end = end;
-	ext->oe_obj = obj;
-	ext->oe_srvlock = !!(brw_flags & OBD_BRW_SRVLOCK);
-	ext->oe_nr_pages = page_count;
-	ext->oe_mppr = mppr;
-	list_splice_init(list, &ext->oe_pages);
-
-	osc_object_lock(obj);
-	/* Reuse the initial refcount for RPC, don't drop it */
-	osc_extent_state_set(ext, OES_LOCK_DONE);
-	if (cmd & OBD_BRW_WRITE) {
-		list_add_tail(&ext->oe_link, &obj->oo_urgent_exts);
-		osc_update_pending(obj, OBD_BRW_WRITE, page_count);
-	} else {
-		list_add_tail(&ext->oe_link, &obj->oo_reading_exts);
-		osc_update_pending(obj, OBD_BRW_READ, page_count);
-	}
-	osc_object_unlock(obj);
-
-	osc_io_unplug_async(env, cli, obj);
-	return 0;
-}
-
-/**
- * Called by osc_io_setattr_start() to freeze and destroy covering extents.
- */
-int osc_cache_truncate_start(const struct lu_env *env, struct osc_io *oio,
-			     struct osc_object *obj, __u64 size)
-{
-	struct client_obd *cli = osc_cli(obj);
-	struct osc_extent *ext;
-	struct osc_extent *waiting = NULL;
-	pgoff_t index;
-	LIST_HEAD(list);
-	int result = 0;
-	bool partial;
-
-	/* pages with index greater or equal to index will be truncated. */
-	index = cl_index(osc2cl(obj), size);
-	partial = size > cl_offset(osc2cl(obj), index);
-
-again:
-	osc_object_lock(obj);
-	ext = osc_extent_search(obj, index);
-	if (ext == NULL)
-		ext = first_extent(obj);
-	else if (ext->oe_end < index)
-		ext = next_extent(ext);
-	while (ext != NULL) {
-		EASSERT(ext->oe_state != OES_TRUNC, ext);
-
-		if (ext->oe_state > OES_CACHE || ext->oe_urgent) {
-			/* if ext is in urgent state, it means there must exist
-			 * a page already having been flushed by write_page().
-			 * We have to wait for this extent because we can't
-			 * truncate that page. */
-			LASSERT(!ext->oe_hp);
-			OSC_EXTENT_DUMP(D_CACHE, ext,
-					"waiting for busy extent\n");
-			waiting = osc_extent_get(ext);
-			break;
-		}
-
-		OSC_EXTENT_DUMP(D_CACHE, ext, "try to trunc:%llu.\n", size);
-
-		osc_extent_get(ext);
-		if (ext->oe_state == OES_ACTIVE) {
-			/* though we grab inode mutex for write path, but we
-			 * release it before releasing extent(in osc_io_end()),
-			 * so there is a race window that an extent is still
-			 * in OES_ACTIVE when truncate starts. */
-			LASSERT(!ext->oe_trunc_pending);
-			ext->oe_trunc_pending = 1;
-		} else {
-			EASSERT(ext->oe_state == OES_CACHE, ext);
-			osc_extent_state_set(ext, OES_TRUNC);
-			osc_update_pending(obj, OBD_BRW_WRITE,
-					   -ext->oe_nr_pages);
-		}
-		EASSERT(list_empty(&ext->oe_link), ext);
-		list_add_tail(&ext->oe_link, &list);
-
-		ext = next_extent(ext);
-	}
-	osc_object_unlock(obj);
-
-	osc_list_maint(cli, obj);
-
-	while (!list_empty(&list)) {
-		int rc;
-
-		ext = list_entry(list.next, struct osc_extent, oe_link);
-		list_del_init(&ext->oe_link);
-
-		/* extent may be in OES_ACTIVE state because inode mutex
-		 * is released before osc_io_end() in file write case */
-		if (ext->oe_state != OES_TRUNC)
-			osc_extent_wait(env, ext, OES_TRUNC);
-
-		rc = osc_extent_truncate(ext, index, partial);
-		if (rc < 0) {
-			if (result == 0)
-				result = rc;
-
-			OSC_EXTENT_DUMP(D_ERROR, ext,
-					"truncate error %d\n", rc);
-		} else if (ext->oe_nr_pages == 0) {
-			osc_extent_remove(ext);
-		} else {
-			/* this must be an overlapped extent which means only
-			 * part of pages in this extent have been truncated.
-			 */
-			EASSERTF(ext->oe_start <= index, ext,
-				 "trunc index = %lu/%d.\n", index, partial);
-			/* fix index to skip this partially truncated extent */
-			index = ext->oe_end + 1;
-			partial = false;
-
-			/* we need to hold this extent in OES_TRUNC state so
-			 * that no writeback will happen. This is to avoid
-			 * BUG 17397. */
-			LASSERT(oio->oi_trunc == NULL);
-			oio->oi_trunc = osc_extent_get(ext);
-			OSC_EXTENT_DUMP(D_CACHE, ext,
-					"trunc at %llu\n", size);
-		}
-		osc_extent_put(env, ext);
-	}
-	if (waiting != NULL) {
-		int rc;
-
-		/* ignore the result of osc_extent_wait the write initiator
-		 * should take care of it. */
-		rc = osc_extent_wait(env, waiting, OES_INV);
-		if (rc < 0)
-			OSC_EXTENT_DUMP(D_CACHE, waiting, "error: %d.\n", rc);
-
-		osc_extent_put(env, waiting);
-		waiting = NULL;
-		goto again;
-	}
-	return result;
-}
-
-/**
- * Called after osc_io_setattr_end to add oio->oi_trunc back to cache.
- */
-void osc_cache_truncate_end(const struct lu_env *env, struct osc_io *oio,
-			    struct osc_object *obj)
-{
-	struct osc_extent *ext = oio->oi_trunc;
-
-	oio->oi_trunc = NULL;
-	if (ext != NULL) {
-		bool unplug = false;
-
-		EASSERT(ext->oe_nr_pages > 0, ext);
-		EASSERT(ext->oe_state == OES_TRUNC, ext);
-		EASSERT(!ext->oe_urgent, ext);
-
-		OSC_EXTENT_DUMP(D_CACHE, ext, "trunc -> cache.\n");
-		osc_object_lock(obj);
-		osc_extent_state_set(ext, OES_CACHE);
-		if (ext->oe_fsync_wait && !ext->oe_urgent) {
-			ext->oe_urgent = 1;
-			list_move_tail(&ext->oe_link, &obj->oo_urgent_exts);
-			unplug = true;
-		}
-		osc_update_pending(obj, OBD_BRW_WRITE, ext->oe_nr_pages);
-		osc_object_unlock(obj);
-		osc_extent_put(env, ext);
-
-		if (unplug)
-			osc_io_unplug_async(env, osc_cli(obj), obj);
-	}
-}
-
-/**
- * Wait for extents in a specific range to be written out.
- * The caller must have called osc_cache_writeback_range() to issue IO
- * otherwise it will take a long time for this function to finish.
- *
- * Caller must hold inode_mutex , or cancel exclusive dlm lock so that
- * nobody else can dirty this range of file while we're waiting for
- * extents to be written.
- */
-int osc_cache_wait_range(const struct lu_env *env, struct osc_object *obj,
-			 pgoff_t start, pgoff_t end)
-{
-	struct osc_extent *ext;
-	pgoff_t index = start;
-	int result = 0;
-
-again:
-	osc_object_lock(obj);
-	ext = osc_extent_search(obj, index);
-	if (ext == NULL)
-		ext = first_extent(obj);
-	else if (ext->oe_end < index)
-		ext = next_extent(ext);
-	while (ext != NULL) {
-		int rc;
-
-		if (ext->oe_start > end)
-			break;
-
-		if (!ext->oe_fsync_wait) {
-			ext = next_extent(ext);
-			continue;
-		}
-
-		EASSERT(ergo(ext->oe_state == OES_CACHE,
-			     ext->oe_hp || ext->oe_urgent), ext);
-		EASSERT(ergo(ext->oe_state == OES_ACTIVE,
-			     !ext->oe_hp && ext->oe_urgent), ext);
-
-		index = ext->oe_end + 1;
-		osc_extent_get(ext);
-		osc_object_unlock(obj);
-
-		rc = osc_extent_wait(env, ext, OES_INV);
-		if (result == 0)
-			result = rc;
-		osc_extent_put(env, ext);
-		goto again;
-	}
-	osc_object_unlock(obj);
-
-	OSC_IO_DEBUG(obj, "sync file range.\n");
-	return result;
-}
-
-/**
- * Called to write out a range of osc object.
- *
- * @hp     : should be set this is caused by lock cancel;
- * @discard: is set if dirty pages should be dropped - file will be deleted or
- *	   truncated, this implies there is no partially discarding extents.
- *
- * Return how many pages will be issued, or error code if error occurred.
- */
-int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj,
-			      pgoff_t start, pgoff_t end, int hp, int discard)
-{
-	struct osc_extent *ext;
-	LIST_HEAD(discard_list);
-	bool unplug = false;
-	int result = 0;
-
-	osc_object_lock(obj);
-	ext = osc_extent_search(obj, start);
-	if (ext == NULL)
-		ext = first_extent(obj);
-	else if (ext->oe_end < start)
-		ext = next_extent(ext);
-	while (ext != NULL) {
-		if (ext->oe_start > end)
-			break;
-
-		ext->oe_fsync_wait = 1;
-		switch (ext->oe_state) {
-		case OES_CACHE:
-			result += ext->oe_nr_pages;
-			if (!discard) {
-				struct list_head *list = NULL;
-				if (hp) {
-					EASSERT(!ext->oe_hp, ext);
-					ext->oe_hp = 1;
-					list = &obj->oo_hp_exts;
-				} else if (!ext->oe_urgent) {
-					ext->oe_urgent = 1;
-					list = &obj->oo_urgent_exts;
-				}
-				if (list != NULL)
-					list_move_tail(&ext->oe_link, list);
-				unplug = true;
-			} else {
-				/* the only discarder is lock cancelling, so
-				 * [start, end] must contain this extent */
-				EASSERT(ext->oe_start >= start &&
-					ext->oe_max_end <= end, ext);
-				osc_extent_state_set(ext, OES_LOCKING);
-				ext->oe_owner = current;
-				list_move_tail(&ext->oe_link,
-						   &discard_list);
-				osc_update_pending(obj, OBD_BRW_WRITE,
-						   -ext->oe_nr_pages);
-			}
-			break;
-		case OES_ACTIVE:
-			/* It's pretty bad to wait for ACTIVE extents, because
-			 * we don't know how long we will wait for it to be
-			 * flushed since it may be blocked at awaiting more
-			 * grants. We do this for the correctness of fsync. */
-			LASSERT(hp == 0 && discard == 0);
-			ext->oe_urgent = 1;
-			break;
-		case OES_TRUNC:
-			/* this extent is being truncated, can't do anything
-			 * for it now. it will be set to urgent after truncate
-			 * is finished in osc_cache_truncate_end(). */
-		default:
-			break;
-		}
-		ext = next_extent(ext);
-	}
-	osc_object_unlock(obj);
-
-	LASSERT(ergo(!discard, list_empty(&discard_list)));
-	if (!list_empty(&discard_list)) {
-		struct osc_extent *tmp;
-		int rc;
-
-		osc_list_maint(osc_cli(obj), obj);
-		list_for_each_entry_safe(ext, tmp, &discard_list, oe_link) {
-			list_del_init(&ext->oe_link);
-			EASSERT(ext->oe_state == OES_LOCKING, ext);
-
-			/* Discard caching pages. We don't actually write this
-			 * extent out but we complete it as if we did. */
-			rc = osc_extent_make_ready(env, ext);
-			if (unlikely(rc < 0)) {
-				OSC_EXTENT_DUMP(D_ERROR, ext,
-						"make_ready returned %d\n", rc);
-				if (result >= 0)
-					result = rc;
-			}
-
-			/* finish the extent as if the pages were sent */
-			osc_extent_finish(env, ext, 0, 0);
-		}
-	}
-
-	if (unplug)
-		osc_io_unplug(env, osc_cli(obj), obj, PDL_POLICY_ROUND);
-
-	if (hp || discard) {
-		int rc;
-		rc = osc_cache_wait_range(env, obj, start, end);
-		if (result >= 0 && rc < 0)
-			result = rc;
-	}
-
-	OSC_IO_DEBUG(obj, "cache page out.\n");
-	return result;
-}
-
-/** @} osc */
diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
deleted file mode 100644
index 365b2787b3c8..000000000000
--- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
+++ /dev/null
@@ -1,685 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Internal interfaces of OSC layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
- */
-
-#ifndef OSC_CL_INTERNAL_H
-#define OSC_CL_INTERNAL_H
-
-#include "../../include/linux/libcfs/libcfs.h"
-
-#include "../include/obd.h"
-/* osc_build_res_name() */
-#include "../include/cl_object.h"
-#include "../include/lclient.h"
-#include "osc_internal.h"
-
-/** \defgroup osc osc
- *  @{
- */
-
-struct osc_extent;
-
-/**
- * State maintained by osc layer for each IO context.
- */
-struct osc_io {
-	/** super class */
-	struct cl_io_slice oi_cl;
-	/** true if this io is lockless. */
-	int		oi_lockless;
-	/** active extents, we know how many bytes is going to be written,
-	 * so having an active extent will prevent it from being fragmented */
-	struct osc_extent *oi_active;
-	/** partially truncated extent, we need to hold this extent to prevent
-	 * page writeback from happening. */
-	struct osc_extent *oi_trunc;
-
-	struct obd_info    oi_info;
-	struct obdo	oi_oa;
-	struct osc_async_cbargs {
-		bool		  opc_rpc_sent;
-		int	       opc_rc;
-		struct completion	opc_sync;
-	} oi_cbarg;
-};
-
-/**
- * State of transfer for osc.
- */
-struct osc_req {
-	struct cl_req_slice    or_cl;
-};
-
-/**
- * State maintained by osc layer for the duration of a system call.
- */
-struct osc_session {
-	struct osc_io       os_io;
-};
-
-#define OTI_PVEC_SIZE 64
-struct osc_thread_info {
-	struct ldlm_res_id      oti_resname;
-	ldlm_policy_data_t      oti_policy;
-	struct cl_lock_descr    oti_descr;
-	struct cl_attr	  oti_attr;
-	struct lustre_handle    oti_handle;
-	struct cl_page_list     oti_plist;
-	struct cl_io		oti_io;
-	struct cl_page	       *oti_pvec[OTI_PVEC_SIZE];
-};
-
-struct osc_object {
-	struct cl_object   oo_cl;
-	struct lov_oinfo  *oo_oinfo;
-	/**
-	 * True if locking against this stripe got -EUSERS.
-	 */
-	int		oo_contended;
-	unsigned long	 oo_contention_time;
-	/**
-	 * List of pages in transfer.
-	 */
-	struct list_head	 oo_inflight[CRT_NR];
-	/**
-	 * Lock, protecting ccc_object::cob_inflight, because a seat-belt is
-	 * locked during take-off and landing.
-	 */
-	spinlock_t	   oo_seatbelt;
-
-	/**
-	 * used by the osc to keep track of what objects to build into rpcs.
-	 * Protected by client_obd->cli_loi_list_lock.
-	 */
-	struct list_head	   oo_ready_item;
-	struct list_head	   oo_hp_ready_item;
-	struct list_head	   oo_write_item;
-	struct list_head	   oo_read_item;
-
-	/**
-	 * extent is a red black tree to manage (async) dirty pages.
-	 */
-	struct rb_root       oo_root;
-	/**
-	 * Manage write(dirty) extents.
-	 */
-	struct list_head	   oo_hp_exts; /* list of hp extents */
-	struct list_head	   oo_urgent_exts; /* list of writeback extents */
-	struct list_head	   oo_rpc_exts;
-
-	struct list_head	   oo_reading_exts;
-
-	atomic_t	 oo_nr_reads;
-	atomic_t	 oo_nr_writes;
-
-	/** Protect extent tree. Will be used to protect
-	 * oo_{read|write}_pages soon. */
-	spinlock_t	    oo_lock;
-};
-
-static inline void osc_object_lock(struct osc_object *obj)
-{
-	spin_lock(&obj->oo_lock);
-}
-
-static inline int osc_object_trylock(struct osc_object *obj)
-{
-	return spin_trylock(&obj->oo_lock);
-}
-
-static inline void osc_object_unlock(struct osc_object *obj)
-{
-	spin_unlock(&obj->oo_lock);
-}
-
-static inline int osc_object_is_locked(struct osc_object *obj)
-{
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
-	return spin_is_locked(&obj->oo_lock);
-#else
-	/*
-	 * It is not perfect to return true all the time.
-	 * But since this function is only used for assertion
-	 * and checking, it seems OK.
-	 */
-	return 1;
-#endif
-}
-
-/*
- * Lock "micro-states" for osc layer.
- */
-enum osc_lock_state {
-	OLS_NEW,
-	OLS_ENQUEUED,
-	OLS_UPCALL_RECEIVED,
-	OLS_GRANTED,
-	OLS_RELEASED,
-	OLS_BLOCKED,
-	OLS_CANCELLED
-};
-
-/**
- * osc-private state of cl_lock.
- *
- * Interaction with DLM.
- *
- * CLIO enqueues all DLM locks through ptlrpcd (that is, in "async" mode).
- *
- * Once receive upcall is invoked, osc_lock remembers a handle of DLM lock in
- * osc_lock::ols_handle and a pointer to that lock in osc_lock::ols_lock.
- *
- * This pointer is protected through a reference, acquired by
- * osc_lock_upcall0(). Also, an additional reference is acquired by
- * ldlm_lock_addref() call protecting the lock from cancellation, until
- * osc_lock_unuse() releases it.
- *
- * Below is a description of how lock references are acquired and released
- * inside of DLM.
- *
- * - When new lock is created and enqueued to the server (ldlm_cli_enqueue())
- *      - ldlm_lock_create()
- *	  - ldlm_lock_new(): initializes a lock with 2 references. One for
- *	    the caller (released when reply from the server is received, or on
- *	    error), and another for the hash table.
- *      - ldlm_lock_addref_internal(): protects the lock from cancellation.
- *
- * - When reply is received from the server (osc_enqueue_interpret())
- *      - ldlm_cli_enqueue_fini()
- *	  - LDLM_LOCK_PUT(): releases caller reference acquired by
- *	    ldlm_lock_new().
- *	  - if (rc != 0)
- *		ldlm_lock_decref(): error case: matches ldlm_cli_enqueue().
- *      - ldlm_lock_decref(): for async locks, matches ldlm_cli_enqueue().
- *
- * - When lock is being cancelled (ldlm_lock_cancel())
- *      - ldlm_lock_destroy()
- *	  - LDLM_LOCK_PUT(): releases hash-table reference acquired by
- *	    ldlm_lock_new().
- *
- * osc_lock is detached from ldlm_lock by osc_lock_detach() that is called
- * either when lock is cancelled (osc_lock_blocking()), or when locks is
- * deleted without cancellation (e.g., from cl_locks_prune()). In the latter
- * case ldlm lock remains in memory, and can be re-attached to osc_lock in the
- * future.
- */
-struct osc_lock {
-	struct cl_lock_slice     ols_cl;
-	/** underlying DLM lock */
-	struct ldlm_lock	*ols_lock;
-	/** lock value block */
-	struct ost_lvb	   ols_lvb;
-	/** DLM flags with which osc_lock::ols_lock was enqueued */
-	__u64		    ols_flags;
-	/** osc_lock::ols_lock handle */
-	struct lustre_handle     ols_handle;
-	struct ldlm_enqueue_info ols_einfo;
-	enum osc_lock_state      ols_state;
-
-	/**
-	 * How many pages are using this lock for io, currently only used by
-	 * read-ahead. If non-zero, the underlying dlm lock won't be cancelled
-	 * during recovery to avoid deadlock. see bz16774.
-	 *
-	 * \see osc_page::ops_lock
-	 * \see osc_page_addref_lock(), osc_page_putref_lock()
-	 */
-	atomic_t	     ols_pageref;
-
-	/**
-	 * true, if ldlm_lock_addref() was called against
-	 * osc_lock::ols_lock. This is used for sanity checking.
-	 *
-	 * \see osc_lock::ols_has_ref
-	 */
-	unsigned		  ols_hold :1,
-	/**
-	 * this is much like osc_lock::ols_hold, except that this bit is
-	 * cleared _after_ reference in released in osc_lock_unuse(). This
-	 * fine distinction is needed because:
-	 *
-	 *     - if ldlm lock still has a reference, osc_ast_data_get() needs
-	 *       to return associated cl_lock (so that a flag is needed that is
-	 *       cleared after ldlm_lock_decref() returned), and
-	 *
-	 *     - ldlm_lock_decref() can invoke blocking ast (for a
-	 *       LDLM_FL_CBPENDING lock), and osc_lock functions like
-	 *       osc_lock_cancel() called from there need to know whether to
-	 *       release lock reference (so that a flag is needed that is
-	 *       cleared before ldlm_lock_decref() is called).
-	 */
-				 ols_has_ref:1,
-	/**
-	 * inherit the lockless attribute from top level cl_io.
-	 * If true, osc_lock_enqueue is able to tolerate the -EUSERS error.
-	 */
-				 ols_locklessable:1,
-	/**
-	 * set by osc_lock_use() to wait until blocking AST enters into
-	 * osc_ldlm_blocking_ast0(), so that cl_lock mutex can be used for
-	 * further synchronization.
-	 */
-				 ols_ast_wait:1,
-	/**
-	 * If the data of this lock has been flushed to server side.
-	 */
-				 ols_flush:1,
-	/**
-	 * if set, the osc_lock is a glimpse lock. For glimpse locks, we treat
-	 * the EVAVAIL error as tolerable, this will make upper logic happy
-	 * to wait all glimpse locks to each OSTs to be completed.
-	 * Glimpse lock converts to normal lock if the server lock is
-	 * granted.
-	 * Glimpse lock should be destroyed immediately after use.
-	 */
-				 ols_glimpse:1,
-	/**
-	 * For async glimpse lock.
-	 */
-				 ols_agl:1;
-	/**
-	 * IO that owns this lock. This field is used for a dead-lock
-	 * avoidance by osc_lock_enqueue_wait().
-	 *
-	 * XXX: unfortunately, the owner of a osc_lock is not unique,
-	 * the lock may have multiple users, if the lock is granted and
-	 * then matched.
-	 */
-	struct osc_io	   *ols_owner;
-};
-
-
-/**
- * Page state private for osc layer.
- */
-struct osc_page {
-	struct cl_page_slice  ops_cl;
-	/**
-	 * Page queues used by osc to detect when RPC can be formed.
-	 */
-	struct osc_async_page ops_oap;
-	/**
-	 * An offset within page from which next transfer starts. This is used
-	 * by cl_page_clip() to submit partial page transfers.
-	 */
-	int		   ops_from;
-	/**
-	 * An offset within page at which next transfer ends.
-	 *
-	 * \see osc_page::ops_from.
-	 */
-	int		   ops_to;
-	/**
-	 * Boolean, true iff page is under transfer. Used for sanity checking.
-	 */
-	unsigned	      ops_transfer_pinned:1,
-	/**
-	 * True for a `temporary page' created by read-ahead code, probably
-	 * outside of any DLM lock.
-	 */
-			      ops_temp:1,
-	/**
-	 * in LRU?
-	 */
-			      ops_in_lru:1,
-	/**
-	 * Set if the page must be transferred with OBD_BRW_SRVLOCK.
-	 */
-			      ops_srvlock:1;
-	union {
-		/**
-		 * lru page list. ops_inflight and ops_lru are exclusive so
-		 * that they can share the same data.
-		 */
-		struct list_head	      ops_lru;
-		/**
-		 * Linkage into a per-osc_object list of pages in flight. For
-		 * debugging.
-		 */
-		struct list_head	    ops_inflight;
-	};
-	/**
-	 * Thread that submitted this page for transfer. For debugging.
-	 */
-	struct task_struct	*ops_submitter;
-	/**
-	 * Submit time - the time when the page is starting RPC. For debugging.
-	 */
-	unsigned long	    ops_submit_time;
-
-	/**
-	 * A lock of which we hold a reference covers this page. Only used by
-	 * read-ahead: for a readahead page, we hold it's covering lock to
-	 * prevent it from being canceled during recovery.
-	 *
-	 * \see osc_lock::ols_pageref
-	 * \see osc_page_addref_lock(), osc_page_putref_lock().
-	 */
-	struct cl_lock       *ops_lock;
-};
-
-extern struct kmem_cache *osc_lock_kmem;
-extern struct kmem_cache *osc_object_kmem;
-extern struct kmem_cache *osc_thread_kmem;
-extern struct kmem_cache *osc_session_kmem;
-extern struct kmem_cache *osc_req_kmem;
-extern struct kmem_cache *osc_extent_kmem;
-
-extern struct lu_device_type osc_device_type;
-extern struct lu_context_key osc_key;
-extern struct lu_context_key osc_session_key;
-
-#define OSC_FLAGS (ASYNC_URGENT|ASYNC_READY)
-
-int osc_lock_init(const struct lu_env *env,
-		  struct cl_object *obj, struct cl_lock *lock,
-		  const struct cl_io *io);
-int osc_io_init  (const struct lu_env *env,
-		  struct cl_object *obj, struct cl_io *io);
-int osc_req_init (const struct lu_env *env, struct cl_device *dev,
-		  struct cl_req *req);
-struct lu_object *osc_object_alloc(const struct lu_env *env,
-				   const struct lu_object_header *hdr,
-				   struct lu_device *dev);
-int osc_page_init(const struct lu_env *env, struct cl_object *obj,
-		  struct cl_page *page, struct page *vmpage);
-
-void osc_index2policy  (ldlm_policy_data_t *policy, const struct cl_object *obj,
-			pgoff_t start, pgoff_t end);
-int  osc_lvb_print     (const struct lu_env *env, void *cookie,
-			lu_printer_t p, const struct ost_lvb *lvb);
-
-void osc_page_submit(const struct lu_env *env, struct osc_page *opg,
-		     enum cl_req_type crt, int brw_flags);
-int osc_cancel_async_page(const struct lu_env *env, struct osc_page *ops);
-int osc_set_async_flags(struct osc_object *obj, struct osc_page *opg,
-			u32 async_flags);
-int osc_prep_async_page(struct osc_object *osc, struct osc_page *ops,
-			struct page *page, loff_t offset);
-int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
-		       struct osc_page *ops);
-int osc_teardown_async_page(const struct lu_env *env, struct osc_object *obj,
-			    struct osc_page *ops);
-int osc_flush_async_page(const struct lu_env *env, struct cl_io *io,
-			 struct osc_page *ops);
-int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj,
-			 struct list_head *list, int cmd, int brw_flags);
-int osc_cache_truncate_start(const struct lu_env *env, struct osc_io *oio,
-			     struct osc_object *obj, __u64 size);
-void osc_cache_truncate_end(const struct lu_env *env, struct osc_io *oio,
-			    struct osc_object *obj);
-int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj,
-			      pgoff_t start, pgoff_t end, int hp, int discard);
-int osc_cache_wait_range(const struct lu_env *env, struct osc_object *obj,
-			 pgoff_t start, pgoff_t end);
-void osc_io_unplug(const struct lu_env *env, struct client_obd *cli,
-		   struct osc_object *osc, pdl_policy_t pol);
-
-void osc_object_set_contended  (struct osc_object *obj);
-void osc_object_clear_contended(struct osc_object *obj);
-int  osc_object_is_contended   (struct osc_object *obj);
-
-int  osc_lock_is_lockless      (const struct osc_lock *olck);
-
-/*****************************************************************************
- *
- * Accessors.
- *
- */
-
-static inline struct osc_thread_info *osc_env_info(const struct lu_env *env)
-{
-	struct osc_thread_info *info;
-
-	info = lu_context_key_get(&env->le_ctx, &osc_key);
-	LASSERT(info != NULL);
-	return info;
-}
-
-static inline struct osc_session *osc_env_session(const struct lu_env *env)
-{
-	struct osc_session *ses;
-
-	ses = lu_context_key_get(env->le_ses, &osc_session_key);
-	LASSERT(ses != NULL);
-	return ses;
-}
-
-static inline struct osc_io *osc_env_io(const struct lu_env *env)
-{
-	return &osc_env_session(env)->os_io;
-}
-
-static inline int osc_is_object(const struct lu_object *obj)
-{
-	return obj->lo_dev->ld_type == &osc_device_type;
-}
-
-static inline struct osc_device *lu2osc_dev(const struct lu_device *d)
-{
-	LINVRNT(d->ld_type == &osc_device_type);
-	return container_of0(d, struct osc_device, od_cl.cd_lu_dev);
-}
-
-static inline struct obd_export *osc_export(const struct osc_object *obj)
-{
-	return lu2osc_dev(obj->oo_cl.co_lu.lo_dev)->od_exp;
-}
-
-static inline struct client_obd *osc_cli(const struct osc_object *obj)
-{
-	return &osc_export(obj)->exp_obd->u.cli;
-}
-
-static inline struct osc_object *cl2osc(const struct cl_object *obj)
-{
-	LINVRNT(osc_is_object(&obj->co_lu));
-	return container_of0(obj, struct osc_object, oo_cl);
-}
-
-static inline struct cl_object *osc2cl(const struct osc_object *obj)
-{
-	return (struct cl_object *)&obj->oo_cl;
-}
-
-static inline ldlm_mode_t osc_cl_lock2ldlm(enum cl_lock_mode mode)
-{
-	LASSERT(mode == CLM_READ || mode == CLM_WRITE || mode == CLM_GROUP);
-	if (mode == CLM_READ)
-		return LCK_PR;
-	else if (mode == CLM_WRITE)
-		return LCK_PW;
-	else
-		return LCK_GROUP;
-}
-
-static inline enum cl_lock_mode osc_ldlm2cl_lock(ldlm_mode_t mode)
-{
-	LASSERT(mode == LCK_PR || mode == LCK_PW || mode == LCK_GROUP);
-	if (mode == LCK_PR)
-		return CLM_READ;
-	else if (mode == LCK_PW)
-		return CLM_WRITE;
-	else
-		return CLM_GROUP;
-}
-
-static inline struct osc_page *cl2osc_page(const struct cl_page_slice *slice)
-{
-	LINVRNT(osc_is_object(&slice->cpl_obj->co_lu));
-	return container_of0(slice, struct osc_page, ops_cl);
-}
-
-static inline struct osc_page *oap2osc(struct osc_async_page *oap)
-{
-	return container_of0(oap, struct osc_page, ops_oap);
-}
-
-static inline struct cl_page *oap2cl_page(struct osc_async_page *oap)
-{
-	return oap2osc(oap)->ops_cl.cpl_page;
-}
-
-static inline struct osc_page *oap2osc_page(struct osc_async_page *oap)
-{
-	return (struct osc_page *)container_of(oap, struct osc_page, ops_oap);
-}
-
-static inline struct osc_lock *cl2osc_lock(const struct cl_lock_slice *slice)
-{
-	LINVRNT(osc_is_object(&slice->cls_obj->co_lu));
-	return container_of0(slice, struct osc_lock, ols_cl);
-}
-
-static inline struct osc_lock *osc_lock_at(const struct cl_lock *lock)
-{
-	return cl2osc_lock(cl_lock_at(lock, &osc_device_type));
-}
-
-static inline int osc_io_srvlock(struct osc_io *oio)
-{
-	return (oio->oi_lockless && !oio->oi_cl.cis_io->ci_no_srvlock);
-}
-
-enum osc_extent_state {
-	OES_INV       = 0, /** extent is just initialized or destroyed */
-	OES_ACTIVE    = 1, /** process is using this extent */
-	OES_CACHE     = 2, /** extent is ready for IO */
-	OES_LOCKING   = 3, /** locking page to prepare IO */
-	OES_LOCK_DONE = 4, /** locking finished, ready to send */
-	OES_RPC       = 5, /** in RPC */
-	OES_TRUNC     = 6, /** being truncated */
-	OES_STATE_MAX
-};
-
-/**
- * osc_extent data to manage dirty pages.
- * osc_extent has the following attributes:
- * 1. all pages in the same must be in one RPC in write back;
- * 2. # of pages must be less than max_pages_per_rpc - implied by 1;
- * 3. must be covered by only 1 osc_lock;
- * 4. exclusive. It's impossible to have overlapped osc_extent.
- *
- * The lifetime of an extent is from when the 1st page is dirtied to when
- * all pages inside it are written out.
- *
- * LOCKING ORDER
- * =============
- * page lock -> client_obd_list_lock -> object lock(osc_object::oo_lock)
- */
-struct osc_extent {
-	/** red-black tree node */
-	struct rb_node     oe_node;
-	/** osc_object of this extent */
-	struct osc_object *oe_obj;
-	/** refcount, removed from red-black tree if reaches zero. */
-	atomic_t       oe_refc;
-	/** busy if non-zero */
-	atomic_t       oe_users;
-	/** link list of osc_object's oo_{hp|urgent|locking}_exts. */
-	struct list_head	 oe_link;
-	/** state of this extent */
-	unsigned int       oe_state;
-	/** flags for this extent. */
-	unsigned int       oe_intree:1,
-	/** 0 is write, 1 is read */
-			   oe_rw:1,
-			   oe_srvlock:1,
-			   oe_memalloc:1,
-	/** an ACTIVE extent is going to be truncated, so when this extent
-	 * is released, it will turn into TRUNC state instead of CACHE. */
-			   oe_trunc_pending:1,
-	/** this extent should be written asap and someone may wait for the
-	 * write to finish. This bit is usually set along with urgent if
-	 * the extent was CACHE state.
-	 * fsync_wait extent can't be merged because new extent region may
-	 * exceed fsync range. */
-			   oe_fsync_wait:1,
-	/** covering lock is being canceled */
-			   oe_hp:1,
-	/** this extent should be written back asap. set if one of pages is
-	 * called by page WB daemon, or sync write or reading requests. */
-			   oe_urgent:1;
-	/** how many grants allocated for this extent.
-	 *  Grant allocated for this extent. There is no grant allocated
-	 *  for reading extents and sync write extents. */
-	unsigned int       oe_grants;
-	/** # of dirty pages in this extent */
-	unsigned int       oe_nr_pages;
-	/** list of pending oap pages. Pages in this list are NOT sorted. */
-	struct list_head	 oe_pages;
-	/** Since an extent has to be written out in atomic, this is used to
-	 * remember the next page need to be locked to write this extent out.
-	 * Not used right now.
-	 */
-	struct osc_page   *oe_next_page;
-	/** start and end index of this extent, include start and end
-	 * themselves. Page offset here is the page index of osc_pages.
-	 * oe_start is used as keyword for red-black tree. */
-	pgoff_t	    oe_start;
-	pgoff_t	    oe_end;
-	/** maximum ending index of this extent, this is limited by
-	 * max_pages_per_rpc, lock extent and chunk size. */
-	pgoff_t	    oe_max_end;
-	/** waitqueue - for those who want to be notified if this extent's
-	 * state has changed. */
-	wait_queue_head_t	oe_waitq;
-	/** lock covering this extent */
-	struct cl_lock    *oe_osclock;
-	/** terminator of this extent. Must be true if this extent is in IO. */
-	struct task_struct	*oe_owner;
-	/** return value of writeback. If somebody is waiting for this extent,
-	 * this value can be known by outside world. */
-	int		oe_rc;
-	/** max pages per rpc when this extent was created */
-	unsigned int       oe_mppr;
-};
-
-int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext,
-		      int sent, int rc);
-void osc_extent_release(const struct lu_env *env, struct osc_extent *ext);
-
-/** @} osc */
-
-#endif /* OSC_CL_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/osc/osc_dev.c b/drivers/staging/lustre/lustre/osc/osc_dev.c
deleted file mode 100644
index 91fdec44792b..000000000000
--- a/drivers/staging/lustre/lustre/osc/osc_dev.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_device, cl_req for OSC layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_OSC
-
-/* class_name2obd() */
-#include "../include/obd_class.h"
-
-#include "osc_cl_internal.h"
-
-/** \addtogroup osc
- * @{
- */
-
-struct kmem_cache *osc_lock_kmem;
-struct kmem_cache *osc_object_kmem;
-struct kmem_cache *osc_thread_kmem;
-struct kmem_cache *osc_session_kmem;
-struct kmem_cache *osc_req_kmem;
-struct kmem_cache *osc_extent_kmem;
-struct kmem_cache *osc_quota_kmem;
-
-struct lu_kmem_descr osc_caches[] = {
-	{
-		.ckd_cache = &osc_lock_kmem,
-		.ckd_name  = "osc_lock_kmem",
-		.ckd_size  = sizeof(struct osc_lock)
-	},
-	{
-		.ckd_cache = &osc_object_kmem,
-		.ckd_name  = "osc_object_kmem",
-		.ckd_size  = sizeof(struct osc_object)
-	},
-	{
-		.ckd_cache = &osc_thread_kmem,
-		.ckd_name  = "osc_thread_kmem",
-		.ckd_size  = sizeof(struct osc_thread_info)
-	},
-	{
-		.ckd_cache = &osc_session_kmem,
-		.ckd_name  = "osc_session_kmem",
-		.ckd_size  = sizeof(struct osc_session)
-	},
-	{
-		.ckd_cache = &osc_req_kmem,
-		.ckd_name  = "osc_req_kmem",
-		.ckd_size  = sizeof(struct osc_req)
-	},
-	{
-		.ckd_cache = &osc_extent_kmem,
-		.ckd_name  = "osc_extent_kmem",
-		.ckd_size  = sizeof(struct osc_extent)
-	},
-	{
-		.ckd_cache = &osc_quota_kmem,
-		.ckd_name  = "osc_quota_kmem",
-		.ckd_size  = sizeof(struct osc_quota_info)
-	},
-	{
-		.ckd_cache = NULL
-	}
-};
-
-struct lock_class_key osc_ast_guard_class;
-
-/*****************************************************************************
- *
- * Type conversions.
- *
- */
-
-static struct lu_device *osc2lu_dev(struct osc_device *osc)
-{
-	return &osc->od_cl.cd_lu_dev;
-}
-
-/*****************************************************************************
- *
- * Osc device and device type functions.
- *
- */
-
-static void *osc_key_init(const struct lu_context *ctx,
-			  struct lu_context_key *key)
-{
-	struct osc_thread_info *info;
-
-	OBD_SLAB_ALLOC_PTR_GFP(info, osc_thread_kmem, GFP_NOFS);
-	if (info == NULL)
-		info = ERR_PTR(-ENOMEM);
-	return info;
-}
-
-static void osc_key_fini(const struct lu_context *ctx,
-			 struct lu_context_key *key, void *data)
-{
-	struct osc_thread_info *info = data;
-
-	OBD_SLAB_FREE_PTR(info, osc_thread_kmem);
-}
-
-struct lu_context_key osc_key = {
-	.lct_tags = LCT_CL_THREAD,
-	.lct_init = osc_key_init,
-	.lct_fini = osc_key_fini
-};
-
-static void *osc_session_init(const struct lu_context *ctx,
-			      struct lu_context_key *key)
-{
-	struct osc_session *info;
-
-	OBD_SLAB_ALLOC_PTR_GFP(info, osc_session_kmem, GFP_NOFS);
-	if (info == NULL)
-		info = ERR_PTR(-ENOMEM);
-	return info;
-}
-
-static void osc_session_fini(const struct lu_context *ctx,
-			     struct lu_context_key *key, void *data)
-{
-	struct osc_session *info = data;
-
-	OBD_SLAB_FREE_PTR(info, osc_session_kmem);
-}
-
-struct lu_context_key osc_session_key = {
-	.lct_tags = LCT_SESSION,
-	.lct_init = osc_session_init,
-	.lct_fini = osc_session_fini
-};
-
-/* type constructor/destructor: osc_type_{init,fini,start,stop}(). */
-LU_TYPE_INIT_FINI(osc, &osc_key, &osc_session_key);
-
-static int osc_cl_process_config(const struct lu_env *env,
-				 struct lu_device *d, struct lustre_cfg *cfg)
-{
-	return osc_process_config_base(d->ld_obd, cfg);
-}
-
-static const struct lu_device_operations osc_lu_ops = {
-	.ldo_object_alloc      = osc_object_alloc,
-	.ldo_process_config    = osc_cl_process_config,
-	.ldo_recovery_complete = NULL
-};
-
-static const struct cl_device_operations osc_cl_ops = {
-	.cdo_req_init = osc_req_init
-};
-
-static int osc_device_init(const struct lu_env *env, struct lu_device *d,
-			   const char *name, struct lu_device *next)
-{
-	return 0;
-}
-
-static struct lu_device *osc_device_fini(const struct lu_env *env,
-					 struct lu_device *d)
-{
-	return NULL;
-}
-
-static struct lu_device *osc_device_free(const struct lu_env *env,
-					 struct lu_device *d)
-{
-	struct osc_device *od = lu2osc_dev(d);
-
-	cl_device_fini(lu2cl_dev(d));
-	kfree(od);
-	return NULL;
-}
-
-static struct lu_device *osc_device_alloc(const struct lu_env *env,
-					  struct lu_device_type *t,
-					  struct lustre_cfg *cfg)
-{
-	struct lu_device *d;
-	struct osc_device *od;
-	struct obd_device *obd;
-	int rc;
-
-	od = kzalloc(sizeof(*od), GFP_NOFS);
-	if (!od)
-		return ERR_PTR(-ENOMEM);
-
-	cl_device_init(&od->od_cl, t);
-	d = osc2lu_dev(od);
-	d->ld_ops = &osc_lu_ops;
-	od->od_cl.cd_ops = &osc_cl_ops;
-
-	/* Setup OSC OBD */
-	obd = class_name2obd(lustre_cfg_string(cfg, 0));
-	LASSERT(obd != NULL);
-	rc = osc_setup(obd, cfg);
-	if (rc) {
-		osc_device_free(env, d);
-		return ERR_PTR(rc);
-	}
-	od->od_exp = obd->obd_self_export;
-	return d;
-}
-
-static const struct lu_device_type_operations osc_device_type_ops = {
-	.ldto_init = osc_type_init,
-	.ldto_fini = osc_type_fini,
-
-	.ldto_start = osc_type_start,
-	.ldto_stop  = osc_type_stop,
-
-	.ldto_device_alloc = osc_device_alloc,
-	.ldto_device_free  = osc_device_free,
-
-	.ldto_device_init = osc_device_init,
-	.ldto_device_fini = osc_device_fini
-};
-
-struct lu_device_type osc_device_type = {
-	.ldt_tags = LU_DEVICE_CL,
-	.ldt_name = LUSTRE_OSC_NAME,
-	.ldt_ops = &osc_device_type_ops,
-	.ldt_ctx_tags = LCT_CL_THREAD
-};
-
-/** @} osc */
diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h
deleted file mode 100644
index 470698b0dd75..000000000000
--- a/drivers/staging/lustre/lustre/osc/osc_internal.h
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef OSC_INTERNAL_H
-#define OSC_INTERNAL_H
-
-#define OAP_MAGIC 8675309
-
-struct lu_env;
-
-enum async_flags {
-	ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
-			      page is added to an rpc */
-	ASYNC_URGENT = 0x2, /* page must be put into an RPC before return */
-	ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
-				     to give the caller a chance to update
-				     or cancel the size of the io */
-	ASYNC_HP = 0x10,
-};
-
-struct osc_async_page {
-	int		     oap_magic;
-	unsigned short	  oap_cmd;
-	unsigned short	  oap_interrupted:1;
-
-	struct list_head	      oap_pending_item;
-	struct list_head	      oap_rpc_item;
-
-	u64		 oap_obj_off;
-	unsigned		oap_page_off;
-	enum async_flags	oap_async_flags;
-
-	struct brw_page	 oap_brw_page;
-
-	struct ptlrpc_request   *oap_request;
-	struct client_obd       *oap_cli;
-	struct osc_object       *oap_obj;
-
-	struct ldlm_lock	*oap_ldlm_lock;
-	spinlock_t		 oap_lock;
-};
-
-#define oap_page	oap_brw_page.pg
-#define oap_count       oap_brw_page.count
-#define oap_brw_flags   oap_brw_page.flag
-
-struct osc_cache_waiter {
-	struct list_head	      ocw_entry;
-	wait_queue_head_t	     ocw_waitq;
-	struct osc_async_page  *ocw_oap;
-	int		     ocw_grant;
-	int		     ocw_rc;
-};
-
-int osc_create(const struct lu_env *env, struct obd_export *exp,
-	       struct obdo *oa, struct lov_stripe_md **ea,
-	       struct obd_trans_info *oti);
-int osc_real_create(struct obd_export *exp, struct obdo *oa,
-		    struct lov_stripe_md **ea, struct obd_trans_info *oti);
-void osc_wake_cache_waiters(struct client_obd *cli);
-int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes);
-void osc_update_next_shrink(struct client_obd *cli);
-
-/*
- * cl integration.
- */
-#include "../include/cl_object.h"
-
-extern struct ptlrpc_request_set *PTLRPCD_SET;
-
-int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
-		     __u64 *flags, ldlm_policy_data_t *policy,
-		     struct ost_lvb *lvb, int kms_valid,
-		     obd_enqueue_update_f upcall,
-		     void *cookie, struct ldlm_enqueue_info *einfo,
-		     struct lustre_handle *lockh,
-		     struct ptlrpc_request_set *rqset, int async, int agl);
-int osc_cancel_base(struct lustre_handle *lockh, __u32 mode);
-
-int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id,
-		   __u32 type, ldlm_policy_data_t *policy, __u32 mode,
-		   __u64 *flags, void *data, struct lustre_handle *lockh,
-		   int unref);
-
-int osc_setattr_async_base(struct obd_export *exp, struct obd_info *oinfo,
-			   struct obd_trans_info *oti,
-			   obd_enqueue_update_f upcall, void *cookie,
-			   struct ptlrpc_request_set *rqset);
-int osc_punch_base(struct obd_export *exp, struct obd_info *oinfo,
-		   obd_enqueue_update_f upcall, void *cookie,
-		   struct ptlrpc_request_set *rqset);
-int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo,
-		  obd_enqueue_update_f upcall, void *cookie,
-		  struct ptlrpc_request_set *rqset);
-
-int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg);
-int osc_build_rpc(const struct lu_env *env, struct client_obd *cli,
-		  struct list_head *ext_list, int cmd, pdl_policy_t p);
-int osc_lru_shrink(struct client_obd *cli, int target);
-
-extern spinlock_t osc_ast_guard;
-
-int osc_cleanup(struct obd_device *obd);
-int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
-
-int lproc_osc_attach_seqstat(struct obd_device *dev);
-void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars);
-
-extern struct lu_device_type osc_device_type;
-
-static inline int osc_recoverable_error(int rc)
-{
-	return (rc == -EIO || rc == -EROFS || rc == -ENOMEM ||
-		rc == -EAGAIN || rc == -EINPROGRESS);
-}
-
-static inline unsigned long rpcs_in_flight(struct client_obd *cli)
-{
-	return cli->cl_r_in_flight + cli->cl_w_in_flight;
-}
-
-struct osc_device {
-	struct cl_device    od_cl;
-	struct obd_export  *od_exp;
-
-	/* Write stats is actually protected by client_obd's lock. */
-	struct osc_stats {
-		uint64_t     os_lockless_writes;	  /* by bytes */
-		uint64_t     os_lockless_reads;	   /* by bytes */
-		uint64_t     os_lockless_truncates;       /* by times */
-	} od_stats;
-
-	/* configuration item(s) */
-	int		 od_contention_time;
-	int		 od_lockless_truncate;
-};
-
-static inline struct osc_device *obd2osc_dev(const struct obd_device *d)
-{
-	return container_of0(d->obd_lu_dev, struct osc_device, od_cl.cd_lu_dev);
-}
-
-int osc_dlm_lock_pageref(struct ldlm_lock *dlm);
-
-extern struct kmem_cache *osc_quota_kmem;
-struct osc_quota_info {
-	/** linkage for quota hash table */
-	struct hlist_node oqi_hash;
-	u32	  oqi_id;
-};
-int osc_quota_setup(struct obd_device *obd);
-int osc_quota_cleanup(struct obd_device *obd);
-int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
-		    u32 valid, u32 flags);
-int osc_quota_chkdq(struct client_obd *cli, const unsigned int qid[]);
-int osc_quotactl(struct obd_device *unused, struct obd_export *exp,
-		 struct obd_quotactl *oqctl);
-int osc_quotacheck(struct obd_device *unused, struct obd_export *exp,
-		   struct obd_quotactl *oqctl);
-int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk);
-
-#endif /* OSC_INTERNAL_H */
diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c
deleted file mode 100644
index fa24e9ed1831..000000000000
--- a/drivers/staging/lustre/lustre/osc/osc_io.c
+++ /dev/null
@@ -1,819 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_io for OSC layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- *   Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
- */
-
-#define DEBUG_SUBSYSTEM S_OSC
-
-#include "osc_cl_internal.h"
-
-/** \addtogroup osc
- *  @{
- */
-
-/*****************************************************************************
- *
- * Type conversions.
- *
- */
-
-static struct osc_req *cl2osc_req(const struct cl_req_slice *slice)
-{
-	LINVRNT(slice->crs_dev->cd_lu_dev.ld_type == &osc_device_type);
-	return container_of0(slice, struct osc_req, or_cl);
-}
-
-static struct osc_io *cl2osc_io(const struct lu_env *env,
-				const struct cl_io_slice *slice)
-{
-	struct osc_io *oio = container_of0(slice, struct osc_io, oi_cl);
-
-	LINVRNT(oio == osc_env_io(env));
-	return oio;
-}
-
-static struct osc_page *osc_cl_page_osc(struct cl_page *page)
-{
-	const struct cl_page_slice *slice;
-
-	slice = cl_page_at(page, &osc_device_type);
-	LASSERT(slice != NULL);
-
-	return cl2osc_page(slice);
-}
-
-
-/*****************************************************************************
- *
- * io operations.
- *
- */
-
-static void osc_io_fini(const struct lu_env *env, const struct cl_io_slice *io)
-{
-}
-
-/**
- * An implementation of cl_io_operations::cio_io_submit() method for osc
- * layer. Iterates over pages in the in-queue, prepares each for io by calling
- * cl_page_prep() and then either submits them through osc_io_submit_page()
- * or, if page is already submitted, changes osc flags through
- * osc_set_async_flags().
- */
-static int osc_io_submit(const struct lu_env *env,
-			 const struct cl_io_slice *ios,
-			 enum cl_req_type crt, struct cl_2queue *queue)
-{
-	struct cl_page *page;
-	struct cl_page *tmp;
-	struct client_obd *cli = NULL;
-	struct osc_object *osc = NULL; /* to keep gcc happy */
-	struct osc_page *opg;
-	struct cl_io *io;
-	LIST_HEAD(list);
-
-	struct cl_page_list *qin = &queue->c2_qin;
-	struct cl_page_list *qout = &queue->c2_qout;
-	int queued = 0;
-	int result = 0;
-	int cmd;
-	int brw_flags;
-	int max_pages;
-
-	LASSERT(qin->pl_nr > 0);
-
-	CDEBUG(D_CACHE, "%d %d\n", qin->pl_nr, crt);
-
-	osc = cl2osc(ios->cis_obj);
-	cli = osc_cli(osc);
-	max_pages = cli->cl_max_pages_per_rpc;
-
-	cmd = crt == CRT_WRITE ? OBD_BRW_WRITE : OBD_BRW_READ;
-	brw_flags = osc_io_srvlock(cl2osc_io(env, ios)) ? OBD_BRW_SRVLOCK : 0;
-
-	/*
-	 * NOTE: here @page is a top-level page. This is done to avoid
-	 *       creation of sub-page-list.
-	 */
-	cl_page_list_for_each_safe(page, tmp, qin) {
-		struct osc_async_page *oap;
-
-		/* Top level IO. */
-		io = page->cp_owner;
-		LASSERT(io != NULL);
-
-		opg = osc_cl_page_osc(page);
-		oap = &opg->ops_oap;
-		LASSERT(osc == oap->oap_obj);
-
-		if (!list_empty(&oap->oap_pending_item) ||
-		    !list_empty(&oap->oap_rpc_item)) {
-			CDEBUG(D_CACHE, "Busy oap %p page %p for submit.\n",
-			       oap, opg);
-			result = -EBUSY;
-			break;
-		}
-
-		result = cl_page_prep(env, io, page, crt);
-		if (result != 0) {
-			LASSERT(result < 0);
-			if (result != -EALREADY)
-				break;
-			/*
-			 * Handle -EALREADY error: for read case, the page is
-			 * already in UPTODATE state; for write, the page
-			 * is not dirty.
-			 */
-			result = 0;
-			continue;
-		}
-
-		cl_page_list_move(qout, qin, page);
-		oap->oap_async_flags = ASYNC_URGENT|ASYNC_READY;
-		oap->oap_async_flags |= ASYNC_COUNT_STABLE;
-
-		osc_page_submit(env, opg, crt, brw_flags);
-		list_add_tail(&oap->oap_pending_item, &list);
-		if (++queued == max_pages) {
-			queued = 0;
-			result = osc_queue_sync_pages(env, osc, &list, cmd,
-						      brw_flags);
-			if (result < 0)
-				break;
-		}
-	}
-
-	if (queued > 0)
-		result = osc_queue_sync_pages(env, osc, &list, cmd, brw_flags);
-
-	CDEBUG(D_INFO, "%d/%d %d\n", qin->pl_nr, qout->pl_nr, result);
-	return qout->pl_nr > 0 ? 0 : result;
-}
-
-static void osc_page_touch_at(const struct lu_env *env,
-			      struct cl_object *obj, pgoff_t idx, unsigned to)
-{
-	struct lov_oinfo *loi = cl2osc(obj)->oo_oinfo;
-	struct cl_attr *attr = &osc_env_info(env)->oti_attr;
-	int valid;
-	__u64 kms;
-
-	/* offset within stripe */
-	kms = cl_offset(obj, idx) + to;
-
-	cl_object_attr_lock(obj);
-	/*
-	 * XXX old code used
-	 *
-	 *	 ll_inode_size_lock(inode, 0); lov_stripe_lock(lsm);
-	 *
-	 * here
-	 */
-	CDEBUG(D_INODE, "stripe KMS %sincreasing %llu->%llu %llu\n",
-	       kms > loi->loi_kms ? "" : "not ", loi->loi_kms, kms,
-	       loi->loi_lvb.lvb_size);
-
-	valid = 0;
-	if (kms > loi->loi_kms) {
-		attr->cat_kms = kms;
-		valid |= CAT_KMS;
-	}
-	if (kms > loi->loi_lvb.lvb_size) {
-		attr->cat_size = kms;
-		valid |= CAT_SIZE;
-	}
-	cl_object_attr_set(env, obj, attr, valid);
-	cl_object_attr_unlock(obj);
-}
-
-/**
- * This is called when a page is accessed within file in a way that creates
- * new page, if one were missing (i.e., if there were a hole at that place in
- * the file, or accessed page is beyond the current file size). Examples:
- * ->commit_write() and ->nopage() methods.
- *
- * Expand stripe KMS if necessary.
- */
-static void osc_page_touch(const struct lu_env *env,
-			   struct osc_page *opage, unsigned to)
-{
-	struct cl_page *page = opage->ops_cl.cpl_page;
-	struct cl_object *obj = opage->ops_cl.cpl_obj;
-
-	osc_page_touch_at(env, obj, page->cp_index, to);
-}
-
-/**
- * Implements cl_io_operations::cio_prepare_write() method for osc layer.
- *
- * \retval -EIO transfer initiated against this osc will most likely fail
- * \retval 0    transfer initiated against this osc will most likely succeed.
- *
- * The reason for this check is to immediately return an error to the caller
- * in the case of a deactivated import. Note, that import can be deactivated
- * later, while pages, dirtied by this IO, are still in the cache, but this is
- * irrelevant, because that would still return an error to the application (if
- * it does fsync), but many applications don't do fsync because of performance
- * issues, and we wanted to return an -EIO at write time to notify the
- * application.
- */
-static int osc_io_prepare_write(const struct lu_env *env,
-				const struct cl_io_slice *ios,
-				const struct cl_page_slice *slice,
-				unsigned from, unsigned to)
-{
-	struct osc_device *dev = lu2osc_dev(slice->cpl_obj->co_lu.lo_dev);
-	struct obd_import *imp = class_exp2cliimp(dev->od_exp);
-	struct osc_io *oio = cl2osc_io(env, ios);
-	int result = 0;
-
-	/*
-	 * This implements OBD_BRW_CHECK logic from old client.
-	 */
-
-	if (imp == NULL || imp->imp_invalid)
-		result = -EIO;
-	if (result == 0 && oio->oi_lockless)
-		/* this page contains `invalid' data, but who cares?
-		 * nobody can access the invalid data.
-		 * in osc_io_commit_write(), we're going to write exact
-		 * [from, to) bytes of this page to OST. -jay */
-		cl_page_export(env, slice->cpl_page, 1);
-
-	return result;
-}
-
-static int osc_io_commit_write(const struct lu_env *env,
-			       const struct cl_io_slice *ios,
-			       const struct cl_page_slice *slice,
-			       unsigned from, unsigned to)
-{
-	struct osc_io *oio = cl2osc_io(env, ios);
-	struct osc_page *opg = cl2osc_page(slice);
-	struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj);
-	struct osc_async_page *oap = &opg->ops_oap;
-
-	LASSERT(to > 0);
-	/*
-	 * XXX instead of calling osc_page_touch() here and in
-	 * osc_io_fault_start() it might be more logical to introduce
-	 * cl_page_touch() method, that generic cl_io_commit_write() and page
-	 * fault code calls.
-	 */
-	osc_page_touch(env, cl2osc_page(slice), to);
-	if (!client_is_remote(osc_export(obj)) &&
-	    capable(CFS_CAP_SYS_RESOURCE))
-		oap->oap_brw_flags |= OBD_BRW_NOQUOTA;
-
-	if (oio->oi_lockless)
-		/* see osc_io_prepare_write() for lockless io handling. */
-		cl_page_clip(env, slice->cpl_page, from, to);
-
-	return 0;
-}
-
-static int osc_io_fault_start(const struct lu_env *env,
-			      const struct cl_io_slice *ios)
-{
-	struct cl_io *io;
-	struct cl_fault_io *fio;
-
-	io = ios->cis_io;
-	fio = &io->u.ci_fault;
-	CDEBUG(D_INFO, "%lu %d %d\n",
-	       fio->ft_index, fio->ft_writable, fio->ft_nob);
-	/*
-	 * If mapping is writeable, adjust kms to cover this page,
-	 * but do not extend kms beyond actual file size.
-	 * See bug 10919.
-	 */
-	if (fio->ft_writable)
-		osc_page_touch_at(env, ios->cis_obj,
-				  fio->ft_index, fio->ft_nob);
-	return 0;
-}
-
-static int osc_async_upcall(void *a, int rc)
-{
-	struct osc_async_cbargs *args = a;
-
-	args->opc_rc = rc;
-	complete(&args->opc_sync);
-	return 0;
-}
-
-/**
- * Checks that there are no pages being written in the extent being truncated.
- */
-static int trunc_check_cb(const struct lu_env *env, struct cl_io *io,
-			  struct cl_page *page, void *cbdata)
-{
-	const struct cl_page_slice *slice;
-	struct osc_page *ops;
-	struct osc_async_page *oap;
-	__u64 start = *(__u64 *)cbdata;
-
-	slice = cl_page_at(page, &osc_device_type);
-	LASSERT(slice != NULL);
-	ops = cl2osc_page(slice);
-	oap = &ops->ops_oap;
-
-	if (oap->oap_cmd & OBD_BRW_WRITE &&
-	    !list_empty(&oap->oap_pending_item))
-		CL_PAGE_DEBUG(D_ERROR, env, page, "exists %llu/%s.\n",
-				start, current->comm);
-
-	{
-		struct page *vmpage = cl_page_vmpage(env, page);
-
-		if (PageLocked(vmpage))
-			CDEBUG(D_CACHE, "page %p index %lu locked for %d.\n",
-			       ops, page->cp_index,
-			       (oap->oap_cmd & OBD_BRW_RWMASK));
-	}
-
-	return CLP_GANG_OKAY;
-}
-
-static void osc_trunc_check(const struct lu_env *env, struct cl_io *io,
-			    struct osc_io *oio, __u64 size)
-{
-	struct cl_object *clob;
-	int partial;
-	pgoff_t start;
-
-	clob = oio->oi_cl.cis_obj;
-	start = cl_index(clob, size);
-	partial = cl_offset(clob, start) < size;
-
-	/*
-	 * Complain if there are pages in the truncated region.
-	 */
-	cl_page_gang_lookup(env, clob, io, start + partial, CL_PAGE_EOF,
-			    trunc_check_cb, (void *)&size);
-}
-
-static int osc_io_setattr_start(const struct lu_env *env,
-				const struct cl_io_slice *slice)
-{
-	struct cl_io *io = slice->cis_io;
-	struct osc_io *oio = cl2osc_io(env, slice);
-	struct cl_object *obj = slice->cis_obj;
-	struct lov_oinfo *loi = cl2osc(obj)->oo_oinfo;
-	struct cl_attr *attr = &osc_env_info(env)->oti_attr;
-	struct obdo *oa = &oio->oi_oa;
-	struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
-	__u64 size = io->u.ci_setattr.sa_attr.lvb_size;
-	unsigned int ia_valid = io->u.ci_setattr.sa_valid;
-	int result = 0;
-	struct obd_info oinfo = { { { 0 } } };
-
-	/* truncate cache dirty pages first */
-	if (cl_io_is_trunc(io))
-		result = osc_cache_truncate_start(env, oio, cl2osc(obj), size);
-
-	if (result == 0 && oio->oi_lockless == 0) {
-		cl_object_attr_lock(obj);
-		result = cl_object_attr_get(env, obj, attr);
-		if (result == 0) {
-			struct ost_lvb *lvb = &io->u.ci_setattr.sa_attr;
-			unsigned int cl_valid = 0;
-
-			if (ia_valid & ATTR_SIZE) {
-				attr->cat_size = attr->cat_kms = size;
-				cl_valid = CAT_SIZE | CAT_KMS;
-			}
-			if (ia_valid & ATTR_MTIME_SET) {
-				attr->cat_mtime = lvb->lvb_mtime;
-				cl_valid |= CAT_MTIME;
-			}
-			if (ia_valid & ATTR_ATIME_SET) {
-				attr->cat_atime = lvb->lvb_atime;
-				cl_valid |= CAT_ATIME;
-			}
-			if (ia_valid & ATTR_CTIME_SET) {
-				attr->cat_ctime = lvb->lvb_ctime;
-				cl_valid |= CAT_CTIME;
-			}
-			result = cl_object_attr_set(env, obj, attr, cl_valid);
-		}
-		cl_object_attr_unlock(obj);
-	}
-	memset(oa, 0, sizeof(*oa));
-	if (result == 0) {
-		oa->o_oi = loi->loi_oi;
-		oa->o_mtime = attr->cat_mtime;
-		oa->o_atime = attr->cat_atime;
-		oa->o_ctime = attr->cat_ctime;
-		oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP | OBD_MD_FLATIME |
-			OBD_MD_FLCTIME | OBD_MD_FLMTIME;
-		if (ia_valid & ATTR_SIZE) {
-			oa->o_size = size;
-			oa->o_blocks = OBD_OBJECT_EOF;
-			oa->o_valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
-
-			if (oio->oi_lockless) {
-				oa->o_flags = OBD_FL_SRVLOCK;
-				oa->o_valid |= OBD_MD_FLFLAGS;
-			}
-		} else {
-			LASSERT(oio->oi_lockless == 0);
-		}
-
-		oinfo.oi_oa = oa;
-		oinfo.oi_capa = io->u.ci_setattr.sa_capa;
-		init_completion(&cbargs->opc_sync);
-
-		if (ia_valid & ATTR_SIZE)
-			result = osc_punch_base(osc_export(cl2osc(obj)),
-						&oinfo, osc_async_upcall,
-						cbargs, PTLRPCD_SET);
-		else
-			result = osc_setattr_async_base(osc_export(cl2osc(obj)),
-							&oinfo, NULL,
-							osc_async_upcall,
-							cbargs, PTLRPCD_SET);
-		cbargs->opc_rpc_sent = result == 0;
-	}
-	return result;
-}
-
-static void osc_io_setattr_end(const struct lu_env *env,
-			       const struct cl_io_slice *slice)
-{
-	struct cl_io *io = slice->cis_io;
-	struct osc_io *oio = cl2osc_io(env, slice);
-	struct cl_object *obj = slice->cis_obj;
-	struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
-	int result = 0;
-
-	if (cbargs->opc_rpc_sent) {
-		wait_for_completion(&cbargs->opc_sync);
-		result = io->ci_result = cbargs->opc_rc;
-	}
-	if (result == 0) {
-		if (oio->oi_lockless) {
-			/* lockless truncate */
-			struct osc_device *osd = lu2osc_dev(obj->co_lu.lo_dev);
-
-			LASSERT(cl_io_is_trunc(io));
-			/* XXX: Need a lock. */
-			osd->od_stats.os_lockless_truncates++;
-		}
-	}
-
-	if (cl_io_is_trunc(io)) {
-		__u64 size = io->u.ci_setattr.sa_attr.lvb_size;
-
-		osc_trunc_check(env, io, oio, size);
-		if (oio->oi_trunc != NULL) {
-			osc_cache_truncate_end(env, oio, cl2osc(obj));
-			oio->oi_trunc = NULL;
-		}
-	}
-}
-
-static int osc_io_read_start(const struct lu_env *env,
-			     const struct cl_io_slice *slice)
-{
-	struct cl_object *obj = slice->cis_obj;
-	struct cl_attr *attr = &osc_env_info(env)->oti_attr;
-	int rc = 0;
-
-	if (!slice->cis_io->ci_noatime) {
-		cl_object_attr_lock(obj);
-		attr->cat_atime = LTIME_S(CURRENT_TIME);
-		rc = cl_object_attr_set(env, obj, attr, CAT_ATIME);
-		cl_object_attr_unlock(obj);
-	}
-	return rc;
-}
-
-static int osc_io_write_start(const struct lu_env *env,
-			      const struct cl_io_slice *slice)
-{
-	struct cl_object *obj = slice->cis_obj;
-	struct cl_attr *attr = &osc_env_info(env)->oti_attr;
-	int rc = 0;
-
-	OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_DELAY_SETTIME, 1);
-	cl_object_attr_lock(obj);
-	attr->cat_mtime = attr->cat_ctime = LTIME_S(CURRENT_TIME);
-	rc = cl_object_attr_set(env, obj, attr, CAT_MTIME | CAT_CTIME);
-	cl_object_attr_unlock(obj);
-
-	return rc;
-}
-
-static int osc_fsync_ost(const struct lu_env *env, struct osc_object *obj,
-			 struct cl_fsync_io *fio)
-{
-	struct osc_io *oio = osc_env_io(env);
-	struct obdo *oa = &oio->oi_oa;
-	struct obd_info *oinfo = &oio->oi_info;
-	struct lov_oinfo *loi = obj->oo_oinfo;
-	struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
-	int rc = 0;
-
-	memset(oa, 0, sizeof(*oa));
-	oa->o_oi = loi->loi_oi;
-	oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
-
-	/* reload size abd blocks for start and end of sync range */
-	oa->o_size = fio->fi_start;
-	oa->o_blocks = fio->fi_end;
-	oa->o_valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
-
-	obdo_set_parent_fid(oa, fio->fi_fid);
-
-	memset(oinfo, 0, sizeof(*oinfo));
-	oinfo->oi_oa = oa;
-	oinfo->oi_capa = fio->fi_capa;
-	init_completion(&cbargs->opc_sync);
-
-	rc = osc_sync_base(osc_export(obj), oinfo, osc_async_upcall, cbargs,
-			   PTLRPCD_SET);
-	return rc;
-}
-
-static int osc_io_fsync_start(const struct lu_env *env,
-			      const struct cl_io_slice *slice)
-{
-	struct cl_io *io = slice->cis_io;
-	struct cl_fsync_io *fio = &io->u.ci_fsync;
-	struct cl_object *obj = slice->cis_obj;
-	struct osc_object *osc = cl2osc(obj);
-	pgoff_t start = cl_index(obj, fio->fi_start);
-	pgoff_t end = cl_index(obj, fio->fi_end);
-	int result = 0;
-
-	if (fio->fi_end == OBD_OBJECT_EOF)
-		end = CL_PAGE_EOF;
-
-	result = osc_cache_writeback_range(env, osc, start, end, 0,
-					   fio->fi_mode == CL_FSYNC_DISCARD);
-	if (result > 0) {
-		fio->fi_nr_written += result;
-		result = 0;
-	}
-	if (fio->fi_mode == CL_FSYNC_ALL) {
-		int rc;
-
-		/* we have to wait for writeback to finish before we can
-		 * send OST_SYNC RPC. This is bad because it causes extents
-		 * to be written osc by osc. However, we usually start
-		 * writeback before CL_FSYNC_ALL so this won't have any real
-		 * problem. */
-		rc = osc_cache_wait_range(env, osc, start, end);
-		if (result == 0)
-			result = rc;
-		rc = osc_fsync_ost(env, osc, fio);
-		if (result == 0)
-			result = rc;
-	}
-
-	return result;
-}
-
-static void osc_io_fsync_end(const struct lu_env *env,
-			     const struct cl_io_slice *slice)
-{
-	struct cl_fsync_io *fio = &slice->cis_io->u.ci_fsync;
-	struct cl_object *obj = slice->cis_obj;
-	pgoff_t start = cl_index(obj, fio->fi_start);
-	pgoff_t end = cl_index(obj, fio->fi_end);
-	int result = 0;
-
-	if (fio->fi_mode == CL_FSYNC_LOCAL) {
-		result = osc_cache_wait_range(env, cl2osc(obj), start, end);
-	} else if (fio->fi_mode == CL_FSYNC_ALL) {
-		struct osc_io *oio = cl2osc_io(env, slice);
-		struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
-
-		wait_for_completion(&cbargs->opc_sync);
-		if (result == 0)
-			result = cbargs->opc_rc;
-	}
-	slice->cis_io->ci_result = result;
-}
-
-static void osc_io_end(const struct lu_env *env,
-		       const struct cl_io_slice *slice)
-{
-	struct osc_io *oio = cl2osc_io(env, slice);
-
-	if (oio->oi_active) {
-		osc_extent_release(env, oio->oi_active);
-		oio->oi_active = NULL;
-	}
-}
-
-static const struct cl_io_operations osc_io_ops = {
-	.op = {
-		[CIT_READ] = {
-			.cio_start  = osc_io_read_start,
-			.cio_fini   = osc_io_fini
-		},
-		[CIT_WRITE] = {
-			.cio_start  = osc_io_write_start,
-			.cio_end    = osc_io_end,
-			.cio_fini   = osc_io_fini
-		},
-		[CIT_SETATTR] = {
-			.cio_start  = osc_io_setattr_start,
-			.cio_end    = osc_io_setattr_end
-		},
-		[CIT_FAULT] = {
-			.cio_start  = osc_io_fault_start,
-			.cio_end    = osc_io_end,
-			.cio_fini   = osc_io_fini
-		},
-		[CIT_FSYNC] = {
-			.cio_start  = osc_io_fsync_start,
-			.cio_end    = osc_io_fsync_end,
-			.cio_fini   = osc_io_fini
-		},
-		[CIT_MISC] = {
-			.cio_fini   = osc_io_fini
-		}
-	},
-	.req_op = {
-		 [CRT_READ] = {
-			 .cio_submit    = osc_io_submit
-		 },
-		 [CRT_WRITE] = {
-			 .cio_submit    = osc_io_submit
-		 }
-	 },
-	.cio_prepare_write = osc_io_prepare_write,
-	.cio_commit_write  = osc_io_commit_write
-};
-
-/*****************************************************************************
- *
- * Transfer operations.
- *
- */
-
-static int osc_req_prep(const struct lu_env *env,
-			const struct cl_req_slice *slice)
-{
-	return 0;
-}
-
-static void osc_req_completion(const struct lu_env *env,
-			       const struct cl_req_slice *slice, int ioret)
-{
-	struct osc_req *or;
-
-	or = cl2osc_req(slice);
-	OBD_SLAB_FREE_PTR(or, osc_req_kmem);
-}
-
-/**
- * Implementation of struct cl_req_operations::cro_attr_set() for osc
- * layer. osc is responsible for struct obdo::o_id and struct obdo::o_seq
- * fields.
- */
-static void osc_req_attr_set(const struct lu_env *env,
-			     const struct cl_req_slice *slice,
-			     const struct cl_object *obj,
-			     struct cl_req_attr *attr, u64 flags)
-{
-	struct lov_oinfo *oinfo;
-	struct cl_req *clerq;
-	struct cl_page *apage; /* _some_ page in @clerq */
-	struct cl_lock *lock;  /* _some_ lock protecting @apage */
-	struct osc_lock *olck;
-	struct osc_page *opg;
-	struct obdo *oa;
-	struct ost_lvb *lvb;
-
-	oinfo = cl2osc(obj)->oo_oinfo;
-	lvb = &oinfo->loi_lvb;
-	oa = attr->cra_oa;
-
-	if ((flags & OBD_MD_FLMTIME) != 0) {
-		oa->o_mtime = lvb->lvb_mtime;
-		oa->o_valid |= OBD_MD_FLMTIME;
-	}
-	if ((flags & OBD_MD_FLATIME) != 0) {
-		oa->o_atime = lvb->lvb_atime;
-		oa->o_valid |= OBD_MD_FLATIME;
-	}
-	if ((flags & OBD_MD_FLCTIME) != 0) {
-		oa->o_ctime = lvb->lvb_ctime;
-		oa->o_valid |= OBD_MD_FLCTIME;
-	}
-	if (flags & OBD_MD_FLGROUP) {
-		ostid_set_seq(&oa->o_oi, ostid_seq(&oinfo->loi_oi));
-		oa->o_valid |= OBD_MD_FLGROUP;
-	}
-	if (flags & OBD_MD_FLID) {
-		ostid_set_id(&oa->o_oi, ostid_id(&oinfo->loi_oi));
-		oa->o_valid |= OBD_MD_FLID;
-	}
-	if (flags & OBD_MD_FLHANDLE) {
-		clerq = slice->crs_req;
-		LASSERT(!list_empty(&clerq->crq_pages));
-		apage = container_of(clerq->crq_pages.next,
-				     struct cl_page, cp_flight);
-		opg = osc_cl_page_osc(apage);
-		apage = opg->ops_cl.cpl_page; /* now apage is a sub-page */
-		lock = cl_lock_at_page(env, apage->cp_obj, apage, NULL, 1, 1);
-		if (lock == NULL) {
-			struct cl_object_header *head;
-			struct cl_lock *scan;
-
-			head = cl_object_header(apage->cp_obj);
-			list_for_each_entry(scan, &head->coh_locks,
-						cll_linkage)
-				CL_LOCK_DEBUG(D_ERROR, env, scan,
-					      "no cover page!\n");
-			CL_PAGE_DEBUG(D_ERROR, env, apage,
-				      "dump uncover page!\n");
-			dump_stack();
-			LBUG();
-		}
-
-		olck = osc_lock_at(lock);
-		LASSERT(olck != NULL);
-		LASSERT(ergo(opg->ops_srvlock, olck->ols_lock == NULL));
-		/* check for lockless io. */
-		if (olck->ols_lock != NULL) {
-			oa->o_handle = olck->ols_lock->l_remote_handle;
-			oa->o_valid |= OBD_MD_FLHANDLE;
-		}
-		cl_lock_put(env, lock);
-	}
-}
-
-static const struct cl_req_operations osc_req_ops = {
-	.cro_prep       = osc_req_prep,
-	.cro_attr_set   = osc_req_attr_set,
-	.cro_completion = osc_req_completion
-};
-
-
-int osc_io_init(const struct lu_env *env,
-		struct cl_object *obj, struct cl_io *io)
-{
-	struct osc_io *oio = osc_env_io(env);
-
-	CL_IO_SLICE_CLEAN(oio, oi_cl);
-	cl_io_slice_add(io, &oio->oi_cl, obj, &osc_io_ops);
-	return 0;
-}
-
-int osc_req_init(const struct lu_env *env, struct cl_device *dev,
-		 struct cl_req *req)
-{
-	struct osc_req *or;
-	int result;
-
-	OBD_SLAB_ALLOC_PTR_GFP(or, osc_req_kmem, GFP_NOFS);
-	if (or != NULL) {
-		cl_req_slice_add(req, &or->or_cl, dev, &osc_req_ops);
-		result = 0;
-	} else
-		result = -ENOMEM;
-	return result;
-}
-
-/** @} osc */
diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c
deleted file mode 100644
index 70b1b43f692b..000000000000
--- a/drivers/staging/lustre/lustre/osc/osc_lock.c
+++ /dev/null
@@ -1,1612 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * Implementation of cl_lock for OSC layer.
- *
- *   Author: Nikita Danilov <nikita.danilov@sun.com>
- */
-
-#define DEBUG_SUBSYSTEM S_OSC
-
-#include "../../include/linux/libcfs/libcfs.h"
-/* fid_build_reg_res_name() */
-#include "../include/lustre_fid.h"
-
-#include "osc_cl_internal.h"
-
-/** \addtogroup osc
- *  @{
- */
-
-#define _PAGEREF_MAGIC  (-10000000)
-
-/*****************************************************************************
- *
- * Type conversions.
- *
- */
-
-static const struct cl_lock_operations osc_lock_ops;
-static const struct cl_lock_operations osc_lock_lockless_ops;
-static void osc_lock_to_lockless(const struct lu_env *env,
-				 struct osc_lock *ols, int force);
-static int osc_lock_has_pages(struct osc_lock *olck);
-
-int osc_lock_is_lockless(const struct osc_lock *olck)
-{
-	return (olck->ols_cl.cls_ops == &osc_lock_lockless_ops);
-}
-
-/**
- * Returns a weak pointer to the ldlm lock identified by a handle. Returned
- * pointer cannot be dereferenced, as lock is not protected from concurrent
- * reclaim. This function is a helper for osc_lock_invariant().
- */
-static struct ldlm_lock *osc_handle_ptr(struct lustre_handle *handle)
-{
-	struct ldlm_lock *lock;
-
-	lock = ldlm_handle2lock(handle);
-	if (lock != NULL)
-		LDLM_LOCK_PUT(lock);
-	return lock;
-}
-
-/**
- * Invariant that has to be true all of the time.
- */
-static int osc_lock_invariant(struct osc_lock *ols)
-{
-	struct ldlm_lock *lock = osc_handle_ptr(&ols->ols_handle);
-	struct ldlm_lock *olock = ols->ols_lock;
-	int handle_used = lustre_handle_is_used(&ols->ols_handle);
-
-	if (ergo(osc_lock_is_lockless(ols),
-		 ols->ols_locklessable && ols->ols_lock == NULL))
-		return 1;
-
-	/*
-	 * If all the following "ergo"s are true, return 1, otherwise 0
-	 */
-	if (!ergo(olock != NULL, handle_used))
-		return 0;
-
-	if (!ergo(olock != NULL,
-		   olock->l_handle.h_cookie == ols->ols_handle.cookie))
-		return 0;
-
-	if (!ergo(handle_used,
-		   ergo(lock != NULL && olock != NULL, lock == olock) &&
-		   ergo(lock == NULL, olock == NULL)))
-		return 0;
-	/*
-	 * Check that ->ols_handle and ->ols_lock are consistent, but
-	 * take into account that they are set at the different time.
-	 */
-	if (!ergo(ols->ols_state == OLS_CANCELLED,
-		   olock == NULL && !handle_used))
-		return 0;
-	/*
-	 * DLM lock is destroyed only after we have seen cancellation
-	 * ast.
-	 */
-	if (!ergo(olock != NULL && ols->ols_state < OLS_CANCELLED,
-		   ((olock->l_flags & LDLM_FL_DESTROYED) == 0)))
-		return 0;
-
-	if (!ergo(ols->ols_state == OLS_GRANTED,
-		   olock != NULL &&
-		   olock->l_req_mode == olock->l_granted_mode &&
-		   ols->ols_hold))
-		return 0;
-	return 1;
-}
-
-/*****************************************************************************
- *
- * Lock operations.
- *
- */
-
-/**
- * Breaks a link between osc_lock and dlm_lock.
- */
-static void osc_lock_detach(const struct lu_env *env, struct osc_lock *olck)
-{
-	struct ldlm_lock *dlmlock;
-
-	spin_lock(&osc_ast_guard);
-	dlmlock = olck->ols_lock;
-	if (dlmlock == NULL) {
-		spin_unlock(&osc_ast_guard);
-		return;
-	}
-
-	olck->ols_lock = NULL;
-	/* wb(); --- for all who checks (ols->ols_lock != NULL) before
-	 * call to osc_lock_detach() */
-	dlmlock->l_ast_data = NULL;
-	olck->ols_handle.cookie = 0ULL;
-	spin_unlock(&osc_ast_guard);
-
-	lock_res_and_lock(dlmlock);
-	if (dlmlock->l_granted_mode == dlmlock->l_req_mode) {
-		struct cl_object *obj = olck->ols_cl.cls_obj;
-		struct cl_attr *attr = &osc_env_info(env)->oti_attr;
-		__u64 old_kms;
-
-		cl_object_attr_lock(obj);
-		/* Must get the value under the lock to avoid possible races. */
-		old_kms = cl2osc(obj)->oo_oinfo->loi_kms;
-		/* Update the kms. Need to loop all granted locks.
-		 * Not a problem for the client */
-		attr->cat_kms = ldlm_extent_shift_kms(dlmlock, old_kms);
-
-		cl_object_attr_set(env, obj, attr, CAT_KMS);
-		cl_object_attr_unlock(obj);
-	}
-	unlock_res_and_lock(dlmlock);
-
-	/* release a reference taken in osc_lock_upcall0(). */
-	LASSERT(olck->ols_has_ref);
-	lu_ref_del(&dlmlock->l_reference, "osc_lock", olck);
-	LDLM_LOCK_RELEASE(dlmlock);
-	olck->ols_has_ref = 0;
-}
-
-static int osc_lock_unhold(struct osc_lock *ols)
-{
-	int result = 0;
-
-	if (ols->ols_hold) {
-		ols->ols_hold = 0;
-		result = osc_cancel_base(&ols->ols_handle,
-					 ols->ols_einfo.ei_mode);
-	}
-	return result;
-}
-
-static int osc_lock_unuse(const struct lu_env *env,
-			  const struct cl_lock_slice *slice)
-{
-	struct osc_lock *ols = cl2osc_lock(slice);
-
-	LINVRNT(osc_lock_invariant(ols));
-
-	switch (ols->ols_state) {
-	case OLS_NEW:
-		LASSERT(!ols->ols_hold);
-		LASSERT(ols->ols_agl);
-		return 0;
-	case OLS_UPCALL_RECEIVED:
-		osc_lock_unhold(ols);
-	case OLS_ENQUEUED:
-		LASSERT(!ols->ols_hold);
-		osc_lock_detach(env, ols);
-		ols->ols_state = OLS_NEW;
-		return 0;
-	case OLS_GRANTED:
-		LASSERT(!ols->ols_glimpse);
-		LASSERT(ols->ols_hold);
-		/*
-		 * Move lock into OLS_RELEASED state before calling
-		 * osc_cancel_base() so that possible synchronous cancellation
-		 * (that always happens e.g., for liblustre) sees that lock is
-		 * released.
-		 */
-		ols->ols_state = OLS_RELEASED;
-		return osc_lock_unhold(ols);
-	default:
-		CERROR("Impossible state: %d\n", ols->ols_state);
-		LBUG();
-	}
-}
-
-static void osc_lock_fini(const struct lu_env *env,
-			  struct cl_lock_slice *slice)
-{
-	struct osc_lock *ols = cl2osc_lock(slice);
-
-	LINVRNT(osc_lock_invariant(ols));
-	/*
-	 * ->ols_hold can still be true at this point if, for example, a
-	 * thread that requested a lock was killed (and released a reference
-	 * to the lock), before reply from a server was received. In this case
-	 * lock is destroyed immediately after upcall.
-	 */
-	osc_lock_unhold(ols);
-	LASSERT(ols->ols_lock == NULL);
-	LASSERT(atomic_read(&ols->ols_pageref) == 0 ||
-		atomic_read(&ols->ols_pageref) == _PAGEREF_MAGIC);
-
-	OBD_SLAB_FREE_PTR(ols, osc_lock_kmem);
-}
-
-static void osc_lock_build_policy(const struct lu_env *env,
-				  const struct cl_lock *lock,
-				  ldlm_policy_data_t *policy)
-{
-	const struct cl_lock_descr *d = &lock->cll_descr;
-
-	osc_index2policy(policy, d->cld_obj, d->cld_start, d->cld_end);
-	policy->l_extent.gid = d->cld_gid;
-}
-
-static __u64 osc_enq2ldlm_flags(__u32 enqflags)
-{
-	__u64 result = 0;
-
-	LASSERT((enqflags & ~CEF_MASK) == 0);
-
-	if (enqflags & CEF_NONBLOCK)
-		result |= LDLM_FL_BLOCK_NOWAIT;
-	if (enqflags & CEF_ASYNC)
-		result |= LDLM_FL_HAS_INTENT;
-	if (enqflags & CEF_DISCARD_DATA)
-		result |= LDLM_FL_AST_DISCARD_DATA;
-	return result;
-}
-
-/**
- * Global spin-lock protecting consistency of ldlm_lock::l_ast_data
- * pointers. Initialized in osc_init().
- */
-spinlock_t osc_ast_guard;
-
-static struct osc_lock *osc_ast_data_get(struct ldlm_lock *dlm_lock)
-{
-	struct osc_lock *olck;
-
-	lock_res_and_lock(dlm_lock);
-	spin_lock(&osc_ast_guard);
-	olck = dlm_lock->l_ast_data;
-	if (olck != NULL) {
-		struct cl_lock *lock = olck->ols_cl.cls_lock;
-		/*
-		 * If osc_lock holds a reference on ldlm lock, return it even
-		 * when cl_lock is in CLS_FREEING state. This way
-		 *
-		 *	 osc_ast_data_get(dlmlock) == NULL
-		 *
-		 * guarantees that all osc references on dlmlock were
-		 * released. osc_dlm_blocking_ast0() relies on that.
-		 */
-		if (lock->cll_state < CLS_FREEING || olck->ols_has_ref) {
-			cl_lock_get_trust(lock);
-			lu_ref_add_atomic(&lock->cll_reference,
-					  "ast", current);
-		} else
-			olck = NULL;
-	}
-	spin_unlock(&osc_ast_guard);
-	unlock_res_and_lock(dlm_lock);
-	return olck;
-}
-
-static void osc_ast_data_put(const struct lu_env *env, struct osc_lock *olck)
-{
-	struct cl_lock *lock;
-
-	lock = olck->ols_cl.cls_lock;
-	lu_ref_del(&lock->cll_reference, "ast", current);
-	cl_lock_put(env, lock);
-}
-
-/**
- * Updates object attributes from a lock value block (lvb) received together
- * with the DLM lock reply from the server. Copy of osc_update_enqueue()
- * logic.
- *
- * This can be optimized to not update attributes when lock is a result of a
- * local match.
- *
- * Called under lock and resource spin-locks.
- */
-static void osc_lock_lvb_update(const struct lu_env *env, struct osc_lock *olck,
-				int rc)
-{
-	struct ost_lvb *lvb;
-	struct cl_object *obj;
-	struct lov_oinfo *oinfo;
-	struct cl_attr *attr;
-	unsigned valid;
-
-	if (!(olck->ols_flags & LDLM_FL_LVB_READY))
-		return;
-
-	lvb = &olck->ols_lvb;
-	obj = olck->ols_cl.cls_obj;
-	oinfo = cl2osc(obj)->oo_oinfo;
-	attr = &osc_env_info(env)->oti_attr;
-	valid = CAT_BLOCKS | CAT_ATIME | CAT_CTIME | CAT_MTIME | CAT_SIZE;
-	cl_lvb2attr(attr, lvb);
-
-	cl_object_attr_lock(obj);
-	if (rc == 0) {
-		struct ldlm_lock *dlmlock;
-		__u64 size;
-
-		dlmlock = olck->ols_lock;
-		LASSERT(dlmlock != NULL);
-
-		/* re-grab LVB from a dlm lock under DLM spin-locks. */
-		*lvb = *(struct ost_lvb *)dlmlock->l_lvb_data;
-		size = lvb->lvb_size;
-		/* Extend KMS up to the end of this lock and no further
-		 * A lock on [x,y] means a KMS of up to y + 1 bytes! */
-		if (size > dlmlock->l_policy_data.l_extent.end)
-			size = dlmlock->l_policy_data.l_extent.end + 1;
-		if (size >= oinfo->loi_kms) {
-			LDLM_DEBUG(dlmlock, "lock acquired, setting rss=%llu, kms=%llu",
-				   lvb->lvb_size, size);
-			valid |= CAT_KMS;
-			attr->cat_kms = size;
-		} else {
-			LDLM_DEBUG(dlmlock, "lock acquired, setting rss=%llu; leaving kms=%llu, end=%llu",
-				   lvb->lvb_size, oinfo->loi_kms,
-				   dlmlock->l_policy_data.l_extent.end);
-		}
-		ldlm_lock_allow_match_locked(dlmlock);
-	} else if (rc == -ENAVAIL && olck->ols_glimpse) {
-		CDEBUG(D_INODE, "glimpsed, setting rss=%llu; leaving kms=%llu\n",
-		       lvb->lvb_size, oinfo->loi_kms);
-	} else
-		valid = 0;
-
-	if (valid != 0)
-		cl_object_attr_set(env, obj, attr, valid);
-
-	cl_object_attr_unlock(obj);
-}
-
-/**
- * Called when a lock is granted, from an upcall (when server returned a
- * granted lock), or from completion AST, when server returned a blocked lock.
- *
- * Called under lock and resource spin-locks, that are released temporarily
- * here.
- */
-static void osc_lock_granted(const struct lu_env *env, struct osc_lock *olck,
-			     struct ldlm_lock *dlmlock, int rc)
-{
-	struct ldlm_extent *ext;
-	struct cl_lock *lock;
-	struct cl_lock_descr *descr;
-
-	LASSERT(dlmlock->l_granted_mode == dlmlock->l_req_mode);
-
-	if (olck->ols_state < OLS_GRANTED) {
-		lock = olck->ols_cl.cls_lock;
-		ext = &dlmlock->l_policy_data.l_extent;
-		descr = &osc_env_info(env)->oti_descr;
-		descr->cld_obj = lock->cll_descr.cld_obj;
-
-		/* XXX check that ->l_granted_mode is valid. */
-		descr->cld_mode = osc_ldlm2cl_lock(dlmlock->l_granted_mode);
-		descr->cld_start = cl_index(descr->cld_obj, ext->start);
-		descr->cld_end = cl_index(descr->cld_obj, ext->end);
-		descr->cld_gid = ext->gid;
-		/*
-		 * tell upper layers the extent of the lock that was actually
-		 * granted
-		 */
-		olck->ols_state = OLS_GRANTED;
-		osc_lock_lvb_update(env, olck, rc);
-
-		/* release DLM spin-locks to allow cl_lock_{modify,signal}()
-		 * to take a semaphore on a parent lock. This is safe, because
-		 * spin-locks are needed to protect consistency of
-		 * dlmlock->l_*_mode and LVB, and we have finished processing
-		 * them. */
-		unlock_res_and_lock(dlmlock);
-		cl_lock_modify(env, lock, descr);
-		cl_lock_signal(env, lock);
-		LINVRNT(osc_lock_invariant(olck));
-		lock_res_and_lock(dlmlock);
-	}
-}
-
-static void osc_lock_upcall0(const struct lu_env *env, struct osc_lock *olck)
-
-{
-	struct ldlm_lock *dlmlock;
-
-	dlmlock = ldlm_handle2lock_long(&olck->ols_handle, 0);
-	LASSERT(dlmlock != NULL);
-
-	lock_res_and_lock(dlmlock);
-	spin_lock(&osc_ast_guard);
-	LASSERT(dlmlock->l_ast_data == olck);
-	LASSERT(olck->ols_lock == NULL);
-	olck->ols_lock = dlmlock;
-	spin_unlock(&osc_ast_guard);
-
-	/*
-	 * Lock might be not yet granted. In this case, completion ast
-	 * (osc_ldlm_completion_ast()) comes later and finishes lock
-	 * granting.
-	 */
-	if (dlmlock->l_granted_mode == dlmlock->l_req_mode)
-		osc_lock_granted(env, olck, dlmlock, 0);
-	unlock_res_and_lock(dlmlock);
-
-	/*
-	 * osc_enqueue_interpret() decrefs asynchronous locks, counter
-	 * this.
-	 */
-	ldlm_lock_addref(&olck->ols_handle, olck->ols_einfo.ei_mode);
-	olck->ols_hold = 1;
-
-	/* lock reference taken by ldlm_handle2lock_long() is owned by
-	 * osc_lock and released in osc_lock_detach() */
-	lu_ref_add(&dlmlock->l_reference, "osc_lock", olck);
-	olck->ols_has_ref = 1;
-}
-
-/**
- * Lock upcall function that is executed either when a reply to ENQUEUE rpc is
- * received from a server, or after osc_enqueue_base() matched a local DLM
- * lock.
- */
-static int osc_lock_upcall(void *cookie, int errcode)
-{
-	struct osc_lock	*olck = cookie;
-	struct cl_lock_slice *slice = &olck->ols_cl;
-	struct cl_lock *lock = slice->cls_lock;
-	struct lu_env *env;
-	struct cl_env_nest nest;
-
-	env = cl_env_nested_get(&nest);
-	if (!IS_ERR(env)) {
-		int rc;
-
-		cl_lock_mutex_get(env, lock);
-
-		LASSERT(lock->cll_state >= CLS_QUEUING);
-		if (olck->ols_state == OLS_ENQUEUED) {
-			olck->ols_state = OLS_UPCALL_RECEIVED;
-			rc = ldlm_error2errno(errcode);
-		} else if (olck->ols_state == OLS_CANCELLED) {
-			rc = -EIO;
-		} else {
-			CERROR("Impossible state: %d\n", olck->ols_state);
-			LBUG();
-		}
-		if (rc) {
-			struct ldlm_lock *dlmlock;
-
-			dlmlock = ldlm_handle2lock(&olck->ols_handle);
-			if (dlmlock != NULL) {
-				lock_res_and_lock(dlmlock);
-				spin_lock(&osc_ast_guard);
-				LASSERT(olck->ols_lock == NULL);
-				dlmlock->l_ast_data = NULL;
-				olck->ols_handle.cookie = 0ULL;
-				spin_unlock(&osc_ast_guard);
-				ldlm_lock_fail_match_locked(dlmlock);
-				unlock_res_and_lock(dlmlock);
-				LDLM_LOCK_PUT(dlmlock);
-			}
-		} else {
-			if (olck->ols_glimpse)
-				olck->ols_glimpse = 0;
-			osc_lock_upcall0(env, olck);
-		}
-
-		/* Error handling, some errors are tolerable. */
-		if (olck->ols_locklessable && rc == -EUSERS) {
-			/* This is a tolerable error, turn this lock into
-			 * lockless lock.
-			 */
-			osc_object_set_contended(cl2osc(slice->cls_obj));
-			LASSERT(slice->cls_ops == &osc_lock_ops);
-
-			/* Change this lock to ldlmlock-less lock. */
-			osc_lock_to_lockless(env, olck, 1);
-			olck->ols_state = OLS_GRANTED;
-			rc = 0;
-		} else if (olck->ols_glimpse && rc == -ENAVAIL) {
-			osc_lock_lvb_update(env, olck, rc);
-			cl_lock_delete(env, lock);
-			/* Hide the error. */
-			rc = 0;
-		}
-
-		if (rc == 0) {
-			/* For AGL case, the RPC sponsor may exits the cl_lock
-			*  processing without wait() called before related OSC
-			*  lock upcall(). So update the lock status according
-			*  to the enqueue result inside AGL upcall(). */
-			if (olck->ols_agl) {
-				lock->cll_flags |= CLF_FROM_UPCALL;
-				cl_wait_try(env, lock);
-				lock->cll_flags &= ~CLF_FROM_UPCALL;
-				if (!olck->ols_glimpse)
-					olck->ols_agl = 0;
-			}
-			cl_lock_signal(env, lock);
-			/* del user for lock upcall cookie */
-			cl_unuse_try(env, lock);
-		} else {
-			/* del user for lock upcall cookie */
-			cl_lock_user_del(env, lock);
-			cl_lock_error(env, lock, rc);
-		}
-
-		/* release cookie reference, acquired by osc_lock_enqueue() */
-		cl_lock_hold_release(env, lock, "upcall", lock);
-		cl_lock_mutex_put(env, lock);
-
-		lu_ref_del(&lock->cll_reference, "upcall", lock);
-		/* This maybe the last reference, so must be called after
-		 * cl_lock_mutex_put(). */
-		cl_lock_put(env, lock);
-
-		cl_env_nested_put(&nest, env);
-	} else {
-		/* should never happen, similar to osc_ldlm_blocking_ast(). */
-		LBUG();
-	}
-	return errcode;
-}
-
-/**
- * Core of osc_dlm_blocking_ast() logic.
- */
-static void osc_lock_blocking(const struct lu_env *env,
-			      struct ldlm_lock *dlmlock,
-			      struct osc_lock *olck, int blocking)
-{
-	struct cl_lock *lock = olck->ols_cl.cls_lock;
-
-	LASSERT(olck->ols_lock == dlmlock);
-	CLASSERT(OLS_BLOCKED < OLS_CANCELLED);
-	LASSERT(!osc_lock_is_lockless(olck));
-
-	/*
-	 * Lock might be still addref-ed here, if e.g., blocking ast
-	 * is sent for a failed lock.
-	 */
-	osc_lock_unhold(olck);
-
-	if (blocking && olck->ols_state < OLS_BLOCKED)
-		/*
-		 * Move osc_lock into OLS_BLOCKED before canceling the lock,
-		 * because it recursively re-enters osc_lock_blocking(), with
-		 * the state set to OLS_CANCELLED.
-		 */
-		olck->ols_state = OLS_BLOCKED;
-	/*
-	 * cancel and destroy lock at least once no matter how blocking ast is
-	 * entered (see comment above osc_ldlm_blocking_ast() for use
-	 * cases). cl_lock_cancel() and cl_lock_delete() are idempotent.
-	 */
-	cl_lock_cancel(env, lock);
-	cl_lock_delete(env, lock);
-}
-
-/**
- * Helper for osc_dlm_blocking_ast() handling discrepancies between cl_lock
- * and ldlm_lock caches.
- */
-static int osc_dlm_blocking_ast0(const struct lu_env *env,
-				 struct ldlm_lock *dlmlock,
-				 void *data, int flag)
-{
-	struct osc_lock *olck;
-	struct cl_lock *lock;
-	int result;
-	int cancel;
-
-	LASSERT(flag == LDLM_CB_BLOCKING || flag == LDLM_CB_CANCELING);
-
-	cancel = 0;
-	olck = osc_ast_data_get(dlmlock);
-	if (olck != NULL) {
-		lock = olck->ols_cl.cls_lock;
-		cl_lock_mutex_get(env, lock);
-		LINVRNT(osc_lock_invariant(olck));
-		if (olck->ols_ast_wait) {
-			/* wake up osc_lock_use() */
-			cl_lock_signal(env, lock);
-			olck->ols_ast_wait = 0;
-		}
-		/*
-		 * Lock might have been canceled while this thread was
-		 * sleeping for lock mutex, but olck is pinned in memory.
-		 */
-		if (olck == dlmlock->l_ast_data) {
-			/*
-			 * NOTE: DLM sends blocking AST's for failed locks
-			 *       (that are still in pre-OLS_GRANTED state)
-			 *       too, and they have to be canceled otherwise
-			 *       DLM lock is never destroyed and stuck in
-			 *       the memory.
-			 *
-			 *       Alternatively, ldlm_cli_cancel() can be
-			 *       called here directly for osc_locks with
-			 *       ols_state < OLS_GRANTED to maintain an
-			 *       invariant that ->clo_cancel() is only called
-			 *       for locks that were granted.
-			 */
-			LASSERT(data == olck);
-			osc_lock_blocking(env, dlmlock,
-					  olck, flag == LDLM_CB_BLOCKING);
-		} else
-			cancel = 1;
-		cl_lock_mutex_put(env, lock);
-		osc_ast_data_put(env, olck);
-	} else
-		/*
-		 * DLM lock exists, but there is no cl_lock attached to it.
-		 * This is a `normal' race. cl_object and its cl_lock's can be
-		 * removed by memory pressure, together with all pages.
-		 */
-		cancel = (flag == LDLM_CB_BLOCKING);
-
-	if (cancel) {
-		struct lustre_handle *lockh;
-
-		lockh = &osc_env_info(env)->oti_handle;
-		ldlm_lock2handle(dlmlock, lockh);
-		result = ldlm_cli_cancel(lockh, LCF_ASYNC);
-	} else
-		result = 0;
-	return result;
-}
-
-/**
- * Blocking ast invoked by ldlm when dlm lock is either blocking progress of
- * some other lock, or is canceled. This function is installed as a
- * ldlm_lock::l_blocking_ast() for client extent locks.
- *
- * Control flow is tricky, because ldlm uses the same call-back
- * (ldlm_lock::l_blocking_ast()) for both blocking and cancellation ast's.
- *
- * \param dlmlock lock for which ast occurred.
- *
- * \param new description of a conflicting lock in case of blocking ast.
- *
- * \param data value of dlmlock->l_ast_data
- *
- * \param flag LDLM_CB_BLOCKING or LDLM_CB_CANCELING. Used to distinguish
- *	     cancellation and blocking ast's.
- *
- * Possible use cases:
- *
- *     - ldlm calls dlmlock->l_blocking_ast(..., LDLM_CB_CANCELING) to cancel
- *       lock due to lock lru pressure, or explicit user request to purge
- *       locks.
- *
- *     - ldlm calls dlmlock->l_blocking_ast(..., LDLM_CB_BLOCKING) to notify
- *       us that dlmlock conflicts with another lock that some client is
- *       enqueing. Lock is canceled.
- *
- *	   - cl_lock_cancel() is called. osc_lock_cancel() calls
- *	     ldlm_cli_cancel() that calls
- *
- *		  dlmlock->l_blocking_ast(..., LDLM_CB_CANCELING)
- *
- *	     recursively entering osc_ldlm_blocking_ast().
- *
- *     - client cancels lock voluntary (e.g., as a part of early cancellation):
- *
- *	   cl_lock_cancel()->
- *	     osc_lock_cancel()->
- *	       ldlm_cli_cancel()->
- *		 dlmlock->l_blocking_ast(..., LDLM_CB_CANCELING)
- *
- */
-static int osc_ldlm_blocking_ast(struct ldlm_lock *dlmlock,
-				 struct ldlm_lock_desc *new, void *data,
-				 int flag)
-{
-	struct lu_env *env;
-	struct cl_env_nest nest;
-	int result;
-
-	/*
-	 * This can be called in the context of outer IO, e.g.,
-	 *
-	 *     cl_enqueue()->...
-	 *       ->osc_enqueue_base()->...
-	 *	 ->ldlm_prep_elc_req()->...
-	 *	   ->ldlm_cancel_callback()->...
-	 *	     ->osc_ldlm_blocking_ast()
-	 *
-	 * new environment has to be created to not corrupt outer context.
-	 */
-	env = cl_env_nested_get(&nest);
-	if (!IS_ERR(env)) {
-		result = osc_dlm_blocking_ast0(env, dlmlock, data, flag);
-		cl_env_nested_put(&nest, env);
-	} else {
-		result = PTR_ERR(env);
-		/*
-		 * XXX This should never happen, as cl_lock is
-		 * stuck. Pre-allocated environment a la vvp_inode_fini_env
-		 * should be used.
-		 */
-		LBUG();
-	}
-	if (result != 0) {
-		if (result == -ENODATA)
-			result = 0;
-		else
-			CERROR("BAST failed: %d\n", result);
-	}
-	return result;
-}
-
-static int osc_ldlm_completion_ast(struct ldlm_lock *dlmlock,
-				   __u64 flags, void *data)
-{
-	struct cl_env_nest nest;
-	struct lu_env *env;
-	struct osc_lock *olck;
-	struct cl_lock *lock;
-	int result;
-	int dlmrc;
-
-	/* first, do dlm part of the work */
-	dlmrc = ldlm_completion_ast_async(dlmlock, flags, data);
-	/* then, notify cl_lock */
-	env = cl_env_nested_get(&nest);
-	if (!IS_ERR(env)) {
-		olck = osc_ast_data_get(dlmlock);
-		if (olck != NULL) {
-			lock = olck->ols_cl.cls_lock;
-			cl_lock_mutex_get(env, lock);
-			/*
-			 * ldlm_handle_cp_callback() copied LVB from request
-			 * to lock->l_lvb_data, store it in osc_lock.
-			 */
-			LASSERT(dlmlock->l_lvb_data != NULL);
-			lock_res_and_lock(dlmlock);
-			olck->ols_lvb = *(struct ost_lvb *)dlmlock->l_lvb_data;
-			if (olck->ols_lock == NULL) {
-				/*
-				 * upcall (osc_lock_upcall()) hasn't yet been
-				 * called. Do nothing now, upcall will bind
-				 * olck to dlmlock and signal the waiters.
-				 *
-				 * This maintains an invariant that osc_lock
-				 * and ldlm_lock are always bound when
-				 * osc_lock is in OLS_GRANTED state.
-				 */
-			} else if (dlmlock->l_granted_mode ==
-				   dlmlock->l_req_mode) {
-				osc_lock_granted(env, olck, dlmlock, dlmrc);
-			}
-			unlock_res_and_lock(dlmlock);
-
-			if (dlmrc != 0) {
-				CL_LOCK_DEBUG(D_ERROR, env, lock,
-					      "dlmlock returned %d\n", dlmrc);
-				cl_lock_error(env, lock, dlmrc);
-			}
-			cl_lock_mutex_put(env, lock);
-			osc_ast_data_put(env, olck);
-			result = 0;
-		} else
-			result = -ELDLM_NO_LOCK_DATA;
-		cl_env_nested_put(&nest, env);
-	} else
-		result = PTR_ERR(env);
-	return dlmrc ?: result;
-}
-
-static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data)
-{
-	struct ptlrpc_request *req = data;
-	struct osc_lock	*olck;
-	struct cl_lock *lock;
-	struct cl_object *obj;
-	struct cl_env_nest nest;
-	struct lu_env *env;
-	struct ost_lvb *lvb;
-	struct req_capsule *cap;
-	int result;
-
-	LASSERT(lustre_msg_get_opc(req->rq_reqmsg) == LDLM_GL_CALLBACK);
-
-	env = cl_env_nested_get(&nest);
-	if (!IS_ERR(env)) {
-		/* osc_ast_data_get() has to go after environment is
-		 * allocated, because osc_ast_data() acquires a
-		 * reference to a lock, and it can only be released in
-		 * environment.
-		 */
-		olck = osc_ast_data_get(dlmlock);
-		if (olck != NULL) {
-			lock = olck->ols_cl.cls_lock;
-			/* Do not grab the mutex of cl_lock for glimpse.
-			 * See LU-1274 for details.
-			 * BTW, it's okay for cl_lock to be cancelled during
-			 * this period because server can handle this race.
-			 * See ldlm_server_glimpse_ast() for details.
-			 * cl_lock_mutex_get(env, lock); */
-			cap = &req->rq_pill;
-			req_capsule_extend(cap, &RQF_LDLM_GL_CALLBACK);
-			req_capsule_set_size(cap, &RMF_DLM_LVB, RCL_SERVER,
-					     sizeof(*lvb));
-			result = req_capsule_server_pack(cap);
-			if (result == 0) {
-				lvb = req_capsule_server_get(cap, &RMF_DLM_LVB);
-				obj = lock->cll_descr.cld_obj;
-				result = cl_object_glimpse(env, obj, lvb);
-			}
-			if (!exp_connect_lvb_type(req->rq_export))
-				req_capsule_shrink(&req->rq_pill,
-						   &RMF_DLM_LVB,
-						   sizeof(struct ost_lvb_v1),
-						   RCL_SERVER);
-			osc_ast_data_put(env, olck);
-		} else {
-			/*
-			 * These errors are normal races, so we don't want to
-			 * fill the console with messages by calling
-			 * ptlrpc_error()
-			 */
-			lustre_pack_reply(req, 1, NULL, NULL);
-			result = -ELDLM_NO_LOCK_DATA;
-		}
-		cl_env_nested_put(&nest, env);
-	} else
-		result = PTR_ERR(env);
-	req->rq_status = result;
-	return result;
-}
-
-static unsigned long osc_lock_weigh(const struct lu_env *env,
-				    const struct cl_lock_slice *slice)
-{
-	/*
-	 * don't need to grab coh_page_guard since we don't care the exact #
-	 * of pages..
-	 */
-	return cl_object_header(slice->cls_obj)->coh_pages;
-}
-
-static void osc_lock_build_einfo(const struct lu_env *env,
-				 const struct cl_lock *clock,
-				 struct osc_lock *lock,
-				 struct ldlm_enqueue_info *einfo)
-{
-	enum cl_lock_mode mode;
-
-	mode = clock->cll_descr.cld_mode;
-	if (mode == CLM_PHANTOM)
-		/*
-		 * For now, enqueue all glimpse locks in read mode. In the
-		 * future, client might choose to enqueue LCK_PW lock for
-		 * glimpse on a file opened for write.
-		 */
-		mode = CLM_READ;
-
-	einfo->ei_type = LDLM_EXTENT;
-	einfo->ei_mode = osc_cl_lock2ldlm(mode);
-	einfo->ei_cb_bl = osc_ldlm_blocking_ast;
-	einfo->ei_cb_cp = osc_ldlm_completion_ast;
-	einfo->ei_cb_gl = osc_ldlm_glimpse_ast;
-	einfo->ei_cbdata = lock; /* value to be put into ->l_ast_data */
-}
-
-/**
- * Determine if the lock should be converted into a lockless lock.
- *
- * Steps to check:
- * - if the lock has an explicit requirement for a non-lockless lock;
- * - if the io lock request type ci_lockreq;
- * - send the enqueue rpc to ost to make the further decision;
- * - special treat to truncate lockless lock
- *
- *  Additional policy can be implemented here, e.g., never do lockless-io
- *  for large extents.
- */
-static void osc_lock_to_lockless(const struct lu_env *env,
-				 struct osc_lock *ols, int force)
-{
-	struct cl_lock_slice *slice = &ols->ols_cl;
-
-	LASSERT(ols->ols_state == OLS_NEW ||
-		ols->ols_state == OLS_UPCALL_RECEIVED);
-
-	if (force) {
-		ols->ols_locklessable = 1;
-		slice->cls_ops = &osc_lock_lockless_ops;
-	} else {
-		struct osc_io *oio = osc_env_io(env);
-		struct cl_io *io = oio->oi_cl.cis_io;
-		struct cl_object *obj = slice->cls_obj;
-		struct osc_object *oob = cl2osc(obj);
-		const struct osc_device *osd = lu2osc_dev(obj->co_lu.lo_dev);
-		struct obd_connect_data *ocd;
-
-		LASSERT(io->ci_lockreq == CILR_MANDATORY ||
-			io->ci_lockreq == CILR_MAYBE ||
-			io->ci_lockreq == CILR_NEVER);
-
-		ocd = &class_exp2cliimp(osc_export(oob))->imp_connect_data;
-		ols->ols_locklessable = (io->ci_type != CIT_SETATTR) &&
-				(io->ci_lockreq == CILR_MAYBE) &&
-				(ocd->ocd_connect_flags & OBD_CONNECT_SRVLOCK);
-		if (io->ci_lockreq == CILR_NEVER ||
-			/* lockless IO */
-		    (ols->ols_locklessable && osc_object_is_contended(oob)) ||
-			/* lockless truncate */
-		    (cl_io_is_trunc(io) &&
-		     (ocd->ocd_connect_flags & OBD_CONNECT_TRUNCLOCK) &&
-		      osd->od_lockless_truncate)) {
-			ols->ols_locklessable = 1;
-			slice->cls_ops = &osc_lock_lockless_ops;
-		}
-	}
-	LASSERT(ergo(ols->ols_glimpse, !osc_lock_is_lockless(ols)));
-}
-
-static int osc_lock_compatible(const struct osc_lock *qing,
-			       const struct osc_lock *qed)
-{
-	enum cl_lock_mode qing_mode;
-	enum cl_lock_mode qed_mode;
-
-	qing_mode = qing->ols_cl.cls_lock->cll_descr.cld_mode;
-	if (qed->ols_glimpse &&
-	    (qed->ols_state >= OLS_UPCALL_RECEIVED || qing_mode == CLM_READ))
-		return 1;
-
-	qed_mode = qed->ols_cl.cls_lock->cll_descr.cld_mode;
-	return ((qing_mode == CLM_READ) && (qed_mode == CLM_READ));
-}
-
-/**
- * Cancel all conflicting locks and wait for them to be destroyed.
- *
- * This function is used for two purposes:
- *
- *     - early cancel all conflicting locks before starting IO, and
- *
- *     - guarantee that pages added to the page cache by lockless IO are never
- *       covered by locks other than lockless IO lock, and, hence, are not
- *       visible to other threads.
- */
-static int osc_lock_enqueue_wait(const struct lu_env *env,
-				 const struct osc_lock *olck)
-{
-	struct cl_lock *lock = olck->ols_cl.cls_lock;
-	struct cl_lock_descr *descr = &lock->cll_descr;
-	struct cl_object_header *hdr = cl_object_header(descr->cld_obj);
-	struct cl_lock *scan;
-	struct cl_lock *conflict = NULL;
-	int lockless = osc_lock_is_lockless(olck);
-	int rc = 0;
-
-	LASSERT(cl_lock_is_mutexed(lock));
-
-	/* make it enqueue anyway for glimpse lock, because we actually
-	 * don't need to cancel any conflicting locks. */
-	if (olck->ols_glimpse)
-		return 0;
-
-	spin_lock(&hdr->coh_lock_guard);
-	list_for_each_entry(scan, &hdr->coh_locks, cll_linkage) {
-		struct cl_lock_descr *cld = &scan->cll_descr;
-		const struct osc_lock *scan_ols;
-
-		if (scan == lock)
-			break;
-
-		if (scan->cll_state < CLS_QUEUING ||
-		    scan->cll_state == CLS_FREEING ||
-		    cld->cld_start > descr->cld_end ||
-		    cld->cld_end < descr->cld_start)
-			continue;
-
-		/* overlapped and living locks. */
-
-		/* We're not supposed to give up group lock. */
-		if (scan->cll_descr.cld_mode == CLM_GROUP) {
-			LASSERT(descr->cld_mode != CLM_GROUP ||
-				descr->cld_gid != scan->cll_descr.cld_gid);
-			continue;
-		}
-
-		scan_ols = osc_lock_at(scan);
-
-		/* We need to cancel the compatible locks if we're enqueuing
-		 * a lockless lock, for example:
-		 * imagine that client has PR lock on [0, 1000], and thread T0
-		 * is doing lockless IO in [500, 1500] region. Concurrent
-		 * thread T1 can see lockless data in [500, 1000], which is
-		 * wrong, because these data are possibly stale. */
-		if (!lockless && osc_lock_compatible(olck, scan_ols))
-			continue;
-
-		cl_lock_get_trust(scan);
-		conflict = scan;
-		break;
-	}
-	spin_unlock(&hdr->coh_lock_guard);
-
-	if (conflict) {
-		if (lock->cll_descr.cld_mode == CLM_GROUP) {
-			/* we want a group lock but a previous lock request
-			 * conflicts, we do not wait but return 0 so the
-			 * request is send to the server
-			 */
-			CDEBUG(D_DLMTRACE, "group lock %p is conflicted with %p, no wait, send to server\n",
-			       lock, conflict);
author	Oded Gabbay <ogabbay@kernel.org>	2022-07-07 11:42:15 +0300
committer	Oded Gabbay <ogabbay@kernel.org>	2022-07-12 09:09:31 +0300
commit	e3b20f3ee452e3ce1077822b2558846eb4fe571f (patch)
tree	1f6d1d1ddfca7307687c4f09ed5d06ffb7811466 /tools/perf/scripts/python/flamegraph.py
parent	bd4a338886a8cc5809f45d569df395acb846ce8e (diff)